diff options
| author | cvs2git <source@isc.org> | 1996-11-08 20:09:42 +0000 |
|---|---|---|
| committer | cvs2git <source@isc.org> | 1996-11-08 20:09:42 +0000 |
| commit | 753d3a8f6685898b7fcdfca7262576cf752c99d1 (patch) | |
| tree | 498a0b40fbe3e73c76765340c71a91624fae663b | |
| parent | 0b5d360d4b8b4b947c107f053042e55675eb9b1d (diff) | |
| download | isc-dhcp-753d3a8f6685898b7fcdfca7262576cf752c99d1.tar.gz | |
This commit was manufactured by cvs2git to create tag 'BETA_5_14'.BETA_5_14
49 files changed, 0 insertions, 15876 deletions
diff --git a/client/dhclient.c b/client/dhclient.c deleted file mode 100644 index 8bc551ef..00000000 --- a/client/dhclient.c +++ /dev/null @@ -1,402 +0,0 @@ -/* dhcp.c - - DHCP Client (really lame DHCP client). */ - -/* - * Copyright (c) 1995, 1996 The Internet Software Consortium. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names - * of its contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This software has been written for the Internet Software Consortium - * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie - * Enterprises. To learn more about the Internet Software Consortium, - * see ``http://www.vix.com/isc''. To learn more about Vixie - * Enterprises, see ``http://www.vix.com''. - */ - -#ifndef lint -static char copyright[] = -"$Id: dhclient.c,v 1.21 1996/09/11 18:53:32 mellon Exp $ Copyright (c) 1995, 1996 The Internet Software Consortium. All rights reserved.\n"; -#endif /* not lint */ - -#include "dhcpd.h" - -TIME cur_time; -TIME default_lease_time = 43200; /* 12 hours... */ -TIME max_lease_time = 86400; /* 24 hours... */ -struct tree_cache *global_options [256]; - -struct iaddr server_identifier; -int server_identifier_matched; -int log_perror = 1; - -#ifdef USE_FALLBACK -struct interface_info fallback_interface; -#endif - -u_int16_t server_port; -int log_priority; - -int lexline, lexchar; -char *tlname, *token_line; - -static void usage PROTO ((void)); - -int main (argc, argv, envp) - int argc; - char **argv, **envp; -{ - int i; - struct servent *ent; - struct interface_info *interface; - -#ifdef SYSLOG_4_2 - openlog ("dhclient", LOG_NDELAY); - log_priority = LOG_DAEMON; -#else - openlog ("dhclient", LOG_NDELAY, LOG_DAEMON); -#endif - -#ifndef NO_PUTENV - /* ensure mktime() calls are processed in UTC */ - putenv("TZ=GMT0"); -#endif /* !NO_PUTENV */ - -#if !(defined (DEBUG) || defined (SYSLOG_4_2)) - setlogmask (LOG_UPTO (LOG_INFO)); -#endif - - for (i = 1; i < argc; i++) { - if (!strcmp (argv [i], "-p")) { - if (++i == argc) - usage (); - server_port = htons (atoi (argv [i])); - debug ("binding to user-specified port %d", - ntohs (server_port)); - } else - usage (); - } - - /* Default to the DHCP/BOOTP port. */ - if (!server_port) - { - ent = getservbyname ("dhcpc", "udp"); - if (!ent) - server_port = htons (68); - else - server_port = ent -> s_port; - endservent (); - } - - /* Get the current time... */ - GET_TIME (&cur_time); - - /* Discover all the network interfaces and initialize them. */ - discover_interfaces (0); - - for (interface = interfaces; interface; interface = interface -> next) - send_discover (interface); - - /* Receive packets and dispatch them... */ - dispatch (); - - /* Not reached */ - return 0; -} - -static void usage () -{ - error ("Usage: dhclient [-p <port>]"); -} - -void cleanup () -{ -} - -int commit_leases () -{ - return 0; -} - -int write_lease (lease) - struct lease *lease; -{ - return 0; -} - -void db_startup () -{ -} - -void bootp (packet) - struct packet *packet; -{ - note ("BOOTREPLY from %s", - print_hw_addr (packet -> raw -> htype, - packet -> raw -> hlen, - packet -> raw -> chaddr)); -} - -void dhcp (packet) - struct packet *packet; -{ - switch (packet -> packet_type) { - case DHCPOFFER: - dhcpoffer (packet); - break; - - case DHCPNAK: - dhcpnak (packet); - break; - - case DHCPACK: - dhcpack (packet); - break; - - default: - break; - } -} - -void dhcpoffer (packet) - struct packet *packet; -{ - note ("DHCPOFFER from %s", - print_hw_addr (packet -> raw -> htype, - packet -> raw -> hlen, - packet -> raw -> chaddr)); - - dump_packet (packet); - send_request (packet); -} - -void dhcpack (packet) - struct packet *packet; -{ - note ("DHCPACK from %s", - print_hw_addr (packet -> raw -> htype, - packet -> raw -> hlen, - packet -> raw -> chaddr)); - dump_packet (packet); -} - -void dhcpnak (packet) - struct packet *packet; -{ - note ("DHCPNAK from %s", - print_hw_addr (packet -> raw -> htype, - packet -> raw -> hlen, - packet -> raw -> chaddr)); -} - -static u_int8_t requested_options [] = { - DHO_DHCP_REQUESTED_ADDRESS, - DHO_SUBNET_MASK, - DHO_ROUTERS, - DHO_DOMAIN_NAME_SERVERS, - DHO_HOST_NAME, - DHO_DOMAIN_NAME, - DHO_BROADCAST_ADDRESS }; - -void send_discover (interface) - struct interface_info *interface; -{ - struct sockaddr_in to; - int result; - struct dhcp_packet raw; - unsigned char discover = DHCPDISCOVER; - struct packet outgoing; - - struct tree_cache *options [256]; - struct tree_cache dhcpdiscover_tree; - struct tree_cache dhcprqo_tree; - - memset (options, 0, sizeof options); - memset (&outgoing, 0, sizeof outgoing); - memset (&raw, 0, sizeof raw); - outgoing.raw = &raw; - - /* Set DHCP_MESSAGE_TYPE to DHCPNAK */ - options [DHO_DHCP_MESSAGE_TYPE] = &dhcpdiscover_tree; - options [DHO_DHCP_MESSAGE_TYPE] -> value = &discover; - options [DHO_DHCP_MESSAGE_TYPE] -> len = sizeof discover; - options [DHO_DHCP_MESSAGE_TYPE] -> buf_size = sizeof discover; - options [DHO_DHCP_MESSAGE_TYPE] -> timeout = 0xFFFFFFFF; - options [DHO_DHCP_MESSAGE_TYPE] -> tree = (struct tree *)0; - - /* Set DHCP_MESSAGE to whatever the message is */ - options [DHO_DHCP_MESSAGE] = &dhcprqo_tree; - options [DHO_DHCP_MESSAGE] -> value = requested_options; - options [DHO_DHCP_MESSAGE] -> len = sizeof requested_options; - options [DHO_DHCP_MESSAGE] -> buf_size = sizeof requested_options; - options [DHO_DHCP_MESSAGE] -> timeout = 0xFFFFFFFF; - options [DHO_DHCP_MESSAGE] -> tree = (struct tree *)0; - - /* Set up the option buffer... */ - cons_options ((struct packet *)0, &outgoing, options, 0, 0); - - memset (&raw.ciaddr, 0, sizeof raw.ciaddr); - memset (&raw.siaddr, 0, sizeof raw.siaddr); - memset (&raw.giaddr, 0, sizeof raw.giaddr); - memcpy (raw.chaddr, - interface -> hw_address.haddr, interface -> hw_address.hlen); - raw.hlen = interface -> hw_address.hlen; - raw.htype = interface -> hw_address.htype; - - raw.xid = random (); - raw.secs = 1; - raw.flags = htons (BOOTP_BROADCAST); - raw.hops = 0; - raw.op = BOOTREQUEST; - - /* Report what we're sending... */ - note ("DHCPDISCOVER to %s", interface -> name); - -#ifdef DEBUG_PACKET - dump_packet (&outgoing); - dump_raw ((unsigned char *)&raw, outgoing.packet_length); -#endif - - /* Set up the common stuff... */ - to.sin_family = AF_INET; -#ifdef HAVE_SA_LEN - to.sin_len = sizeof to; -#endif - memset (to.sin_zero, 0, sizeof to.sin_zero); - - to.sin_addr.s_addr = htonl (INADDR_BROADCAST); - to.sin_port = htons (ntohs (server_port) - 1); /* XXX */ - - errno = 0; - result = send_packet (interface, (struct packet *)0, - &raw, outgoing.packet_length, - raw.siaddr, &to, (struct hardware *)0); - if (result < 0) - warn ("send_packet: %m"); -} - -void send_request (packet) - struct packet *packet; -{ - struct sockaddr_in to; - int result; - struct dhcp_packet raw; - unsigned char request = DHCPREQUEST; - struct packet outgoing; - - struct tree_cache *options [256]; - struct tree_cache dhcprequest_tree; - struct tree_cache dhcprqo_tree; - struct tree_cache dhcprqa_tree; - struct tree_cache dhcpsid_tree; - - memset (options, 0, sizeof options); - memset (&outgoing, 0, sizeof outgoing); - memset (&raw, 0, sizeof raw); - outgoing.raw = &raw; - - /* Set DHCP_MESSAGE_TYPE to DHCPNAK */ - options [DHO_DHCP_MESSAGE_TYPE] = &dhcprequest_tree; - options [DHO_DHCP_MESSAGE_TYPE] -> value = &request; - options [DHO_DHCP_MESSAGE_TYPE] -> len = sizeof request; - options [DHO_DHCP_MESSAGE_TYPE] -> buf_size = sizeof request; - options [DHO_DHCP_MESSAGE_TYPE] -> timeout = 0xFFFFFFFF; - options [DHO_DHCP_MESSAGE_TYPE] -> tree = (struct tree *)0; - - /* Set DHCP_MESSAGE to whatever the message is */ - options [DHO_DHCP_MESSAGE] = &dhcprqo_tree; - options [DHO_DHCP_MESSAGE] -> value = requested_options; - options [DHO_DHCP_MESSAGE] -> len = sizeof requested_options; - options [DHO_DHCP_MESSAGE] -> buf_size = sizeof requested_options; - options [DHO_DHCP_MESSAGE] -> timeout = 0xFFFFFFFF; - options [DHO_DHCP_MESSAGE] -> tree = (struct tree *)0; - - /* Request the address we were offered... */ - options [DHO_DHCP_REQUESTED_ADDRESS] = &dhcprqa_tree; - options [DHO_DHCP_REQUESTED_ADDRESS] -> value = - (unsigned char *)&packet -> raw -> yiaddr; - options [DHO_DHCP_REQUESTED_ADDRESS] -> len = 4; - options [DHO_DHCP_REQUESTED_ADDRESS] -> buf_size = 4; - options [DHO_DHCP_REQUESTED_ADDRESS] -> timeout = 0xFFFFFFFF; - options [DHO_DHCP_REQUESTED_ADDRESS] -> tree = (struct tree *)0; - - /* Send back the server identifier... */ - options [DHO_DHCP_SERVER_IDENTIFIER] = &dhcpsid_tree; - options [DHO_DHCP_SERVER_IDENTIFIER] -> value = - packet -> options [DHO_DHCP_SERVER_IDENTIFIER].data; - options [DHO_DHCP_SERVER_IDENTIFIER] -> len = - packet -> options [DHO_DHCP_SERVER_IDENTIFIER].len; - options [DHO_DHCP_SERVER_IDENTIFIER] -> buf_size = - packet -> options [DHO_DHCP_SERVER_IDENTIFIER].len; - options [DHO_DHCP_SERVER_IDENTIFIER] -> timeout = 0xFFFFFFFF; - options [DHO_DHCP_SERVER_IDENTIFIER] -> tree = (struct tree *)0; - - /* Set up the option buffer... */ - cons_options ((struct packet *)0, &outgoing, options, 0, 0); - - memset (&raw.ciaddr, 0, sizeof raw.ciaddr); - raw.siaddr = packet -> raw -> siaddr; - raw.giaddr = packet -> raw -> giaddr; - memcpy (raw.chaddr, - packet -> interface -> hw_address.haddr, - packet -> interface -> hw_address.hlen); - raw.hlen = packet -> interface -> hw_address.hlen; - raw.htype = packet -> interface -> hw_address.htype; - - raw.xid = packet -> raw -> xid; - raw.secs = packet -> raw -> secs; - raw.flags = htons (BOOTP_BROADCAST); - raw.hops = packet -> raw -> hops; - raw.op = BOOTREQUEST; - - /* Report what we're sending... */ - note ("DHCPREQUEST to %s", packet -> interface -> name); - -#ifdef DEBUG_PACKET - dump_packet (&outgoing); - dump_raw ((unsigned char *)&raw, outgoing.packet_length); -#endif - - /* Set up the common stuff... */ - to.sin_family = AF_INET; -#ifdef HAVE_SA_LEN - to.sin_len = sizeof to; -#endif - memset (to.sin_zero, 0, sizeof to.sin_zero); - - to.sin_addr.s_addr = htonl (INADDR_BROADCAST); - to.sin_port = htons (ntohs (server_port) - 1); /* XXX */ - - errno = 0; - result = send_packet (packet -> interface, (struct packet *)0, - &raw, outgoing.packet_length, - raw.siaddr, &to, (struct hardware *)0); - if (result < 0) - warn ("send_packet: %m"); -} diff --git a/common/alloc.c b/common/alloc.c deleted file mode 100644 index dcf4672d..00000000 --- a/common/alloc.c +++ /dev/null @@ -1,247 +0,0 @@ -/* alloc.c - - Memory allocation... */ - -/* - * Copyright (c) 1995, 1996 The Internet Software Consortium. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names - * of its contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This software has been written for the Internet Software Consortium - * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie - * Enterprises. To learn more about the Internet Software Consortium, - * see ``http://www.vix.com/isc''. To learn more about Vixie - * Enterprises, see ``http://www.vix.com''. - */ - -#ifndef lint -static char copyright[] = -"$Id: alloc.c,v 1.9 1996/08/28 01:19:42 mellon Exp $ Copyright (c) 1995, 1996 The Internet Software Consortium. All rights reserved.\n"; -#endif /* not lint */ - -#include "dhcpd.h" - -struct dhcp_packet *dhcp_free_list; -struct packet *packet_free_list; - -VOIDPTR dmalloc (size, name) - int size; - char *name; -{ - VOIDPTR foo = (VOIDPTR)malloc (size); - if (!foo) - warn ("No memory for %s.", name); - memset (foo, 0, size); - return foo; -} - -void dfree (ptr, name) - VOIDPTR ptr; - char *name; -{ - if (!ptr) { - warn ("dfree %s: free on null pointer.", name); - return; - } - free (ptr); -} - -struct packet *new_packet (name) - char *name; -{ - struct packet *rval; - rval = (struct packet *)dmalloc (sizeof (struct packet), name); - return rval; -} - -struct dhcp_packet *new_dhcp_packet (name) - char *name; -{ - struct dhcp_packet *rval; - rval = (struct dhcp_packet *)dmalloc (sizeof (struct dhcp_packet), - name); - return rval; -} - -struct tree *new_tree (name) - char *name; -{ - struct tree *rval = dmalloc (sizeof (struct tree), name); - return rval; -} - -struct tree_cache *new_tree_cache (name) - char *name; -{ - struct tree_cache *rval = dmalloc (sizeof (struct tree_cache), name); - return rval; -} - -struct hash_table *new_hash_table (count, name) - int count; - char *name; -{ - struct hash_table *rval = dmalloc (sizeof (struct hash_table) - - (DEFAULT_HASH_SIZE - * sizeof (struct hash_bucket *)) - + (count - * sizeof (struct hash_bucket *)), - name); - rval -> hash_count = count; - return rval; -} - -struct hash_bucket *new_hash_bucket (name) - char *name; -{ - struct hash_bucket *rval = dmalloc (sizeof (struct hash_bucket), name); - return rval; -} - -struct lease *new_leases (n, name) - int n; - char *name; -{ - struct lease *rval = dmalloc (n * sizeof (struct lease), name); - return rval; -} - -struct lease *new_lease (name) - char *name; -{ - struct lease *rval = dmalloc (sizeof (struct lease), name); - return rval; -} - -struct subnet *new_subnet (name) - char *name; -{ - struct subnet *rval = dmalloc (sizeof (struct subnet), name); - return rval; -} - -struct class *new_class (name) - char *name; -{ - struct class *rval = dmalloc (sizeof (struct class), name); - return rval; -} - -struct shared_network *new_shared_network (name) - char *name; -{ - struct shared_network *rval = - dmalloc (sizeof (struct shared_network), name); - return rval; -} - -struct group *new_group (name) - char *name; -{ - struct group *rval = - dmalloc (sizeof (struct group), name); - return rval; -} - -void free_group (ptr, name) - struct group *ptr; - char *name; -{ - dfree ((VOIDPTR)ptr, name); -} - -void free_shared_network (ptr, name) - struct shared_network *ptr; - char *name; -{ - dfree ((VOIDPTR)ptr, name); -} - -void free_class (ptr, name) - struct class *ptr; - char *name; -{ - dfree ((VOIDPTR)ptr, name); -} - -void free_subnet (ptr, name) - struct subnet *ptr; - char *name; -{ - dfree ((VOIDPTR)ptr, name); -} - -void free_lease (ptr, name) - struct lease *ptr; - char *name; -{ - dfree ((VOIDPTR)ptr, name); -} - -void free_hash_bucket (ptr, name) - struct hash_bucket *ptr; - char *name; -{ - dfree ((VOIDPTR)ptr, name); -} - -void free_hash_table (ptr, name) - struct hash_table *ptr; - char *name; -{ - dfree ((VOIDPTR)ptr, name); -} - -void free_tree_cache (ptr, name) - struct tree_cache *ptr; - char *name; -{ - dfree ((VOIDPTR)ptr, name); -} - -void free_packet (ptr, name) - struct packet *ptr; - char *name; -{ - dfree ((VOIDPTR)ptr, name); -} - -void free_dhcp_packet (ptr, name) - struct dhcp_packet *ptr; - char *name; -{ - dfree ((VOIDPTR)ptr, name); -} - -void free_tree (ptr, name) - struct tree *ptr; - char *name; -{ - dfree ((VOIDPTR)ptr, name); -} diff --git a/common/bpf.c b/common/bpf.c deleted file mode 100644 index 1ef37958..00000000 --- a/common/bpf.c +++ /dev/null @@ -1,370 +0,0 @@ -/* bpf.c - - BPF socket interface code, originally contributed by Archie Cobbs. */ - -/* - * Copyright (c) 1995, 1996 The Internet Software Consortium. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names - * of its contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This software has been written for the Internet Software Consortium - * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie - * Enterprises. To learn more about the Internet Software Consortium, - * see ``http://www.vix.com/isc''. To learn more about Vixie - * Enterprises, see ``http://www.vix.com''. - */ - -#ifndef lint -static char copyright[] = -"$Id: bpf.c,v 1.13 1996/09/02 21:14:58 mellon Exp $ Copyright (c) 1995, 1996 The Internet Software Consortium. All rights reserved.\n"; -#endif /* not lint */ - -#include "dhcpd.h" -#if defined (USE_BPF_SEND) || defined (USE_BPF_RECEIVE) -#include <sys/ioctl.h> -#include <sys/uio.h> - -#include <net/bpf.h> -#ifdef NEED_OSF_PFILT_HACKS -#include <net/pfilt.h> -#endif -#include <netinet/in_systm.h> -#include "includes/netinet/ip.h" -#include "includes/netinet/udp.h" -#include "includes/netinet/if_ether.h" - -/* Called by get_interface_list for each interface that's discovered. - Opens a packet filter for each interface and adds it to the select - mask. */ - -int if_register_bpf (info, ifp) - struct interface_info *info; - struct ifreq *ifp; -{ - int sock; - char filename[50]; - int b; - - /* Open a BPF device */ - for (b = 0; 1; b++) { -#ifndef NO_SNPRINTF - snprintf(filename, sizeof(filename), BPF_FORMAT, b); -#else - sprintf(filename, BPF_FORMAT, b); -#endif - sock = open (filename, O_RDWR, 0); - if (sock < 0) { - if (errno == EBUSY) { - continue; - } else { - error ("Can't find free bpf: %m"); - } - } else { - break; - } - } - - /* Set the BPF device to point at this interface. */ - if (ioctl (sock, BIOCSETIF, ifp) < 0) - error ("Can't attach interface %s to bpf device %s: %m", - info -> name, filename); - - return sock; -} -#endif /* USE_BPF_SEND || USE_BPF_RECEIVE */ - -#ifdef USE_BPF_SEND -void if_register_send (info, interface) - struct interface_info *info; - struct ifreq *interface; -{ - /* If we're using the bpf API for sending and receiving, - we don't need to register this interface twice. */ -#ifndef USE_BPF_RECEIVE - info -> wfdesc = if_register_bpf (info, interface); -#else - info -> wfdesc = info -> rfdesc; -#endif - note ("Sending on BPF/%s/%s/%s", - info -> name, - print_hw_addr (info -> hw_address.htype, - info -> hw_address.hlen, - info -> hw_address.haddr), - (info -> shared_network ? - info -> shared_network -> name : "unattached")); -} -#endif /* USE_BPF_SEND */ - -#ifdef USE_BPF_RECEIVE -/* Packet filter program... - XXX Changes to the filter program may require changes to the constant - offsets used in if_register_send to patch the BPF program! XXX */ - -struct bpf_insn filter [] = { - /* Make sure this is an IP packet... */ - BPF_STMT (BPF_LD + BPF_H + BPF_ABS, 12), - BPF_JUMP (BPF_JMP + BPF_JEQ + BPF_K, ETHERTYPE_IP, 0, 8), - - /* Make sure it's a UDP packet... */ - BPF_STMT (BPF_LD + BPF_B + BPF_ABS, 23), - BPF_JUMP (BPF_JMP + BPF_JEQ + BPF_K, IPPROTO_UDP, 0, 6), - - /* Make sure this isn't a fragment... */ - BPF_STMT(BPF_LD + BPF_H + BPF_ABS, 20), - BPF_JUMP(BPF_JMP + BPF_JSET + BPF_K, 0x1fff, 4, 0), - - /* Get the IP header length... */ - BPF_STMT (BPF_LDX + BPF_B + BPF_MSH, 14), - - /* Make sure it's to the right port... */ - BPF_STMT (BPF_LD + BPF_H + BPF_IND, 16), - BPF_JUMP (BPF_JMP + BPF_JEQ + BPF_K, 67, 0, 1), /* patch */ - - /* If we passed all the tests, ask for the whole packet. */ - BPF_STMT(BPF_RET+BPF_K, (u_int)-1), - - /* Otherwise, drop it. */ - BPF_STMT(BPF_RET+BPF_K, 0), -}; - -void if_register_receive (info, interface) - struct interface_info *info; - struct ifreq *interface; -{ - int flag = 1; - struct bpf_version v; - u_int32_t addr; - struct bpf_program p; - u_int32_t bits; - - /* Open a BPF device and hang it on this interface... */ - info -> rfdesc = if_register_bpf (info, interface); - - /* Make sure the BPF version is in range... */ - if (ioctl (info -> rfdesc, BIOCVERSION, &v) < 0) - error ("Can't get BPF version: %m"); - - if (v.bv_major != BPF_MAJOR_VERSION || - v.bv_minor < BPF_MINOR_VERSION) - error ("Kernel BPF version out of range - recompile dhcpd!"); - - /* Set immediate mode so that reads return as soon as a packet - comes in, rather than waiting for the input buffer to fill with - packets. */ - if (ioctl (info -> rfdesc, BIOCIMMEDIATE, &flag) < 0) - error ("Can't set immediate mode on bpf device: %m"); - -#ifdef NEED_OSF_PFILT_HACKS - /* Allow the copyall flag to be set... */ - if (ioctl(info -> rfdesc, EIOCALLOWCOPYALL, &flag) < 0) - error ("Can't set ALLOWCOPYALL: %m"); - - /* Clear all the packet filter mode bits first... */ - bits = 0; - if (ioctl (info -> rfdesc, EIOCMBIS, &bits) < 0) - error ("Can't clear pfilt bits: %m"); - - /* Set the ENBATCH, ENCOPYALL, ENBPFHDR bits... */ - bits = ENBATCH | ENCOPYALL | ENBPFHDR; - if (ioctl (info -> rfdesc, EIOCMBIS, &bits) < 0) - error ("Can't set ENBATCH|ENCOPYALL|ENBPFHDR: %m"); -#endif - /* Get the required BPF buffer length from the kernel. */ - if (ioctl (info -> rfdesc, BIOCGBLEN, &info -> rbuf_max) < 0) - error ("Can't get bpf buffer length: %m"); - info -> rbuf = malloc (info -> rbuf_max); - if (!info -> rbuf) - error ("Can't allocate %d bytes for bpf input buffer."); - info -> rbuf_offset = 0; - info -> rbuf_len = 0; - - /* Set up the bpf filter program structure. */ - p.bf_len = sizeof filter / sizeof (struct bpf_insn); - p.bf_insns = filter; - - /* Patch the server port into the BPF program... - XXX changes to filter program may require changes - to the insn number(s) used below! XXX */ - filter [8].k = ntohs (server_port); - - if (ioctl (info -> rfdesc, BIOCSETF, &p) < 0) - error ("Can't install packet filter program: %m"); - note ("Listening on BPF/%s/%s/%s", - info -> name, - print_hw_addr (info -> hw_address.htype, - info -> hw_address.hlen, - info -> hw_address.haddr), - (info -> shared_network ? - info -> shared_network -> name : "unattached")); -} -#endif /* USE_BPF_RECEIVE */ - -#ifdef USE_BPF_SEND -size_t send_packet (interface, packet, raw, len, from, to, hto) - struct interface_info *interface; - struct packet *packet; - struct dhcp_packet *raw; - size_t len; - struct in_addr from; - struct sockaddr_in *to; - struct hardware *hto; -{ - int bufp = 0; - unsigned char buf [256]; - struct iovec iov [2]; - - /* Assemble the headers... */ - assemble_hw_header (interface, buf, &bufp, hto); - assemble_udp_ip_header (interface, buf, &bufp, from.s_addr, - to -> sin_addr.s_addr, to -> sin_port, - (unsigned char *)raw, len); - - /* Fire it off */ - iov [0].iov_base = (char *)buf; - iov [0].iov_len = bufp; - iov [1].iov_base = (char *)raw; - iov [1].iov_len = len; - - return writev(interface -> wfdesc, iov, 2); -} -#endif /* USE_BPF_SEND */ - -#ifdef USE_BPF_RECEIVE -size_t receive_packet (interface, buf, len, from, hfrom) - struct interface_info *interface; - unsigned char *buf; - size_t len; - struct sockaddr_in *from; - struct hardware *hfrom; -{ - int length = 0; - int offset = 0; - struct bpf_hdr hdr; - - /* All this complexity is because BPF doesn't guarantee - that only one packet will be returned at a time. We're - getting what we deserve, though - this is a terrible abuse - of the BPF interface. Sigh. */ - - /* Process packets until we get one we can return or until we've - done a read and gotten nothing we can return... */ - - do { - /* If the buffer is empty, fill it. */ - if (interface -> rbuf_offset == interface -> rbuf_len) { - length = read (interface -> rfdesc, - interface -> rbuf, - interface -> rbuf_max); - if (length <= 0) - return length; - interface -> rbuf_offset = 0; - interface -> rbuf_len = length; - } - - /* If there isn't room for a whole bpf header, something went - wrong, but we'll ignore it and hope it goes away... XXX */ - if (interface -> rbuf_len - - interface -> rbuf_offset < sizeof hdr) { - interface -> rbuf_offset = interface -> rbuf_len; - continue; - } - - /* Copy out a bpf header... */ - memcpy (&hdr, &interface -> rbuf [interface -> rbuf_offset], - sizeof hdr); - - /* If the bpf header plus data doesn't fit in what's left - of the buffer, stick head in sand yet again... */ - if (interface -> rbuf_offset + - hdr.bh_hdrlen + hdr.bh_caplen > interface -> rbuf_len) { - interface -> rbuf_offset = interface -> rbuf_len; - continue; - } - - /* If the captured data wasn't the whole packet, or if - the packet won't fit in the input buffer, all we - can do is drop it. */ - if (hdr.bh_caplen != hdr.bh_datalen) { - interface -> rbuf_offset += - hdr.bh_hdrlen = hdr.bh_caplen; - continue; - } - - /* Skip over the BPF header... */ - interface -> rbuf_offset += hdr.bh_hdrlen; - - /* Decode the physical header... */ - offset = decode_hw_header (interface, - interface -> rbuf, - interface -> rbuf_offset, - hfrom); - - /* If a physical layer checksum failed (dunno of any - physical layer that supports this, but WTH), skip this - packet. */ - if (offset < 0) { - interface -> rbuf_offset += hdr.bh_caplen; - continue; - } - interface -> rbuf_offset += offset; - hdr.bh_caplen -= offset; - - /* Decode the IP and UDP headers... */ - offset = decode_udp_ip_header (interface, - interface -> rbuf, - interface -> rbuf_offset, - from, - (unsigned char *)0, - hdr.bh_caplen); - - /* If the IP or UDP checksum was bad, skip the packet... */ - if (offset < 0) { - interface -> rbuf_offset += hdr.bh_caplen; - continue; - } - interface -> rbuf_offset += offset; - hdr.bh_caplen -= offset; - - /* If there's not enough room to stash the packet data, - we have to skip it (this shouldn't happen in real - life, though). */ - if (hdr.bh_caplen > len) { - interface -> rbuf_offset += hdr.bh_caplen; - continue; - } - - /* Copy out the data in the packet... */ - memcpy (buf, interface -> rbuf + interface -> rbuf_offset, - hdr.bh_caplen); - interface -> rbuf_offset += hdr.bh_caplen; - return hdr.bh_caplen; - } while (!length); - return 0; -} -#endif diff --git a/common/conflex.c b/common/conflex.c deleted file mode 100644 index b8b6a195..00000000 --- a/common/conflex.c +++ /dev/null @@ -1,468 +0,0 @@ -/* conflex.c - - Lexical scanner for dhcpd config file... */ - -/* - * Copyright (c) 1995, 1996 The Internet Software Consortium. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names - * of its contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This software has been written for the Internet Software Consortium - * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie - * Enterprises. To learn more about the Internet Software Consortium, - * see ``http://www.vix.com/isc''. To learn more about Vixie - * Enterprises, see ``http://www.vix.com''. - */ - -#ifndef lint -static char copyright[] = -"$Id: conflex.c,v 1.19 1996/09/09 07:04:28 mellon Exp $ Copyright (c) 1995, 1996 The Internet Software Consortium. All rights reserved.\n"; -#endif /* not lint */ - -#include "dhcpd.h" -#include "dhctoken.h" -#include <ctype.h> - -int lexline; -int lexchar; -char *token_line; -char *prev_line; -char *cur_line; -char *tlname; - -static char line1 [81]; -static char line2 [81]; -static int lpos; -static int line; -static int tlpos; -static int tline; -static int token; -static int ugflag; -static char *tval; -static char tokbuf [1500]; - -#ifdef OLD_LEXER -char comments [4096]; -int comment_index; -#endif - - -static int get_char PROTO ((FILE *)); -static int get_token PROTO ((FILE *)); -static void skip_to_eol PROTO ((FILE *)); -static int read_string PROTO ((FILE *)); -static int read_number PROTO ((int, FILE *)); -static int read_num_or_name PROTO ((int, FILE *)); -static int intern PROTO ((char *, int)); - -void new_parse (name) - char *name; -{ - tlname = name; - lpos = line = 1; - cur_line = line1; - prev_line = line2; - token_line = cur_line; - cur_line [0] = prev_line [0] = 0; - warnings_occurred = 0; -} - -static int get_char (cfile) - FILE *cfile; -{ - int c = getc (cfile); - if (!ugflag) { - if (c == EOL) { - if (cur_line == line1) { - cur_line = line2; - prev_line = line1; - } else { - cur_line = line2; - prev_line = line1; - } - line++; - lpos = 1; - cur_line [0] = 0; - } else if (c != EOF) { - if (lpos <= 81) { - cur_line [lpos - 1] = c; - cur_line [lpos] = 0; - } - lpos++; - } - } else - ugflag = 0; - return c; -} - -static int get_token (cfile) - FILE *cfile; -{ - int c; - int ttok; - static char tb [2]; - int l, p, u; - - do { - l = line; - p = lpos; - u = ugflag; - - c = get_char (cfile); -#ifdef OLD_LEXER - if (c == '\n' && p == 1 && !u - && comment_index < sizeof comments) - comments [comment_index++] = '\n'; -#endif - - if (isascii (c) && isspace (c)) - continue; - if (c == '#') { -#ifdef OLD_LEXER - if (comment_index < sizeof comments) - comments [comment_index++] = '#'; -#endif - skip_to_eol (cfile); - continue; - } - if (c == '"') { - lexline = l; - lexchar = p; - ttok = read_string (cfile); - break; - } - if ((isascii (c) && isdigit (c)) || c == '-') { - lexline = l; - lexchar = p; - ttok = read_number (c, cfile); - break; - } else if (isascii (c) && isalpha (c)) { - lexline = l; - lexchar = p; - ttok = read_num_or_name (c, cfile); - break; - } else { - lexline = l; - lexchar = p; - tb [0] = c; - tb [1] = 0; - tval = tb; - ttok = c; - break; - } - } while (1); - return ttok; -} - -int next_token (rval, cfile) - char **rval; - FILE *cfile; -{ - int rv; - - if (token) { - if (lexline != tline) - token_line = cur_line; - lexchar = tlpos; - lexline = tline; - rv = token; - token = 0; - } else { - rv = get_token (cfile); - token_line = cur_line; - } - if (rval) - *rval = tval; -#ifdef DEBUG_TOKENS - fprintf (stderr, "%s:%d ", tval, rv); -#endif - return rv; -} - -int peek_token (rval, cfile) - char **rval; - FILE *cfile; -{ - int x; - - if (!token) { - tlpos = lexchar; - tline = lexline; - token = get_token (cfile); - if (lexline != tline) - token_line = prev_line; - x = lexchar; lexchar = tlpos; tlpos = x; - x = lexline; lexline = tline; tline = x; - } - if (rval) - *rval = tval; -#ifdef DEBUG_TOKENS - fprintf (stderr, "(%s:%d) ", tval, token); -#endif - return token; -} - -static void skip_to_eol (cfile) - FILE *cfile; -{ - int c; - do { - c = get_char (cfile); - if (c == EOF) - return; -#ifdef OLD_LEXER - if (comment_index < sizeof (comments)) - comments [comment_index++] = c; -#endif - if (c == EOL) { - return; - } - } while (1); -} - -static int read_string (cfile) - FILE *cfile; -{ - int i; - int bs = 0; - int c; - - for (i = 0; i < sizeof tokbuf; i++) { - c = get_char (cfile); - if (c == EOF) { - parse_warn ("eof in string constant"); - break; - } - if (bs) { - bs = 0; - tokbuf [i] = c; - } else if (c == '\\') - bs = 1; - else if (c == '"') - break; - else - tokbuf [i] = c; - } - /* Normally, I'd feel guilty about this, but we're talking about - strings that'll fit in a DHCP packet here... */ - if (i == sizeof tokbuf) { - parse_warn ("string constant larger than internal buffer"); - --i; - } - tokbuf [i] = 0; - tval = tokbuf; - return STRING; -} - -static int read_number (c, cfile) - int c; - FILE *cfile; -{ - int seenx = 0; - int i = 0; - int token = NUMBER; - - tokbuf [i++] = c; - for (; i < sizeof tokbuf; i++) { - c = get_char (cfile); - if (!seenx && c == 'x') { - seenx = 1; -#ifndef OLD_LEXER - } else if (isascii (c) && !isxdigit (c) && - (c == '-' || c == '_' || isalpha (c))) { - token = NAME; - } else if (isascii (c) && !isdigit (c) && isxdigit (c)) { - token = NUMBER_OR_NAME; -#endif - } else if (!isascii (c) || !isxdigit (c)) { - ungetc (c, cfile); - ugflag = 1; - break; - } - tokbuf [i] = c; - } - if (i == sizeof tokbuf) { - parse_warn ("numeric token larger than internal buffer"); - --i; - } - tokbuf [i] = 0; - tval = tokbuf; - return token; -} - -static int read_num_or_name (c, cfile) - int c; - FILE *cfile; -{ - int i = 0; - int rv = NUMBER_OR_NAME; - tokbuf [i++] = c; - for (; i < sizeof tokbuf; i++) { - c = get_char (cfile); - if (!isascii (c) || - (c != '-' && c != '_' && !isalnum (c))) { - ungetc (c, cfile); - ugflag = 1; - break; - } - if (!isxdigit (c)) - rv = NAME; - tokbuf [i] = c; - } - if (i == sizeof tokbuf) { - parse_warn ("token larger than internal buffer"); - --i; - } - tokbuf [i] = 0; - tval = tokbuf; - return intern (tval, rv); -} - -static int intern (atom, dfv) - char *atom; - int dfv; -{ - if (!isascii (atom [0])) - return dfv; - - switch (tolower (atom [0])) { - case 'b': - if (!strcasecmp (atom + 1, "oot-unknown-clients")) - return BOOT_UNKNOWN_CLIENTS; - case 'c': - if (!strcasecmp (atom + 1, "lass")) - return CLASS; - if (!strcasecmp (atom + 1, "iaddr")) - return CIADDR; - break; - case 'd': - if (!strcasecmp (atom + 1, "efault-lease-time")) - return DEFAULT_LEASE_TIME; - if (!strncasecmp (atom + 1, "ynamic-bootp", 12)) { - if (!atom [13]) - return DYNAMIC_BOOTP; - else if (!strcasecmp (atom + 13, "-lease-cutoff")) - return DYNAMIC_BOOTP_LEASE_CUTOFF; - else if (!strcasecmp (atom + 13, "-lease-length")) - return DYNAMIC_BOOTP_LEASE_LENGTH; - } - break; - case 'e': - if (!strcasecmp (atom + 1, "thernet")) - return ETHERNET; - if (!strcasecmp (atom + 1, "nds")) - return ENDS; - break; - case 'f': - if (!strcasecmp (atom + 1, "ilename")) - return FILENAME; - if (!strcasecmp (atom + 1, "ixed-address")) - return FIXED_ADDR; - break; - case 'g': - if (!strcasecmp (atom + 1, "iaddr")) - return GIADDR; - if (!strcasecmp (atom + 1, "roup")) - return GROUP; - if (!strcasecmp (atom + 1, "et-lease-hostnames")) - return GET_LEASE_HOSTNAMES; - break; - case 'h': - if (!strcasecmp (atom + 1, "ost")) - return HOST; - if (!strcasecmp (atom + 1, "ardware")) - return HARDWARE; - break; - case 'l': - if (!strcasecmp (atom + 1, "ease")) - return LEASE; - break; - case 'm': - if (!strcasecmp (atom + 1, "ax-lease-time")) - return MAX_LEASE_TIME; - break; - case 'n': - if (!strcasecmp (atom + 1, "etmask")) - return NETMASK; - if (!strcasecmp (atom + 1, "ext-server")) - return NEXT_SERVER; - break; - case 'o': - if (!strcasecmp (atom + 1, "ption")) - return OPTION; - if (!strcasecmp (atom + 1, "ne-lease-per-client")) - return ONE_LEASE_PER_CLIENT; - break; - case 'p': - if (!strcasecmp (atom + 1, "acket")) - return PACKET; - break; - case 'r': - if (!strcasecmp (atom + 1, "ange")) - return RANGE; - break; - case 's': - if (!strcasecmp (atom + 1, "tarts")) - return STARTS; - if (!strcasecmp (atom + 1, "iaddr")) - return SIADDR; - if (!strcasecmp (atom + 1, "ubnet")) - return SUBNET; - if (!strcasecmp (atom + 1, "hared-network")) - return SHARED_NETWORK; - if (!strcasecmp (atom + 1, "erver-name")) - return SERVER_NAME; - if (!strcasecmp (atom + 1, "erver-identifier")) - return SERVER_IDENTIFIER; - break; - case 't': - if (!strcasecmp (atom + 1, "imestamp")) - return TIMESTAMP; - if (!strcasecmp (atom + 1, "oken-ring")) - return TOKEN_RING; - break; - case 'u': - if (!strcasecmp (atom + 1, "id")) - return UID; - if (!strcasecmp (atom + 1, "ser-class")) - return USER_CLASS; - if (!strcasecmp (atom + 1, "se-host-decl-names")) - return USE_HOST_DECL_NAMES; - break; - case 'v': - if (!strcasecmp (atom + 1, "endor-class")) - return VENDOR_CLASS; - break; - case 'y': - if (!strcasecmp (atom + 1, "iaddr")) - return YIADDR; - break; - } - return dfv; -} diff --git a/common/convert.c b/common/convert.c deleted file mode 100644 index 64f3f15c..00000000 --- a/common/convert.c +++ /dev/null @@ -1,118 +0,0 @@ -/* convert.c - - Safe copying of option values into and out of the option buffer, which - can't be assumed to be aligned. */ - -/* - * Copyright (c) 1995, 1996 The Internet Software Consortium. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names - * of its contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This software has been written for the Internet Software Consortium - * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie - * Enterprises. To learn more about the Internet Software Consortium, - * see ``http://www.vix.com/isc''. To learn more about Vixie - * Enterprises, see ``http://www.vix.com''. - */ - -#ifndef lint -static char copyright[] = -"$Id: convert.c,v 1.3 1996/08/27 09:41:28 mellon Exp $ Copyright (c) 1995, 1996 The Internet Software Consortium. All rights reserved.\n"; -#endif /* not lint */ - -#include "dhcpd.h" - -u_int32_t getULong (buf) - unsigned char *buf; -{ - unsigned long ibuf; - - memcpy (&ibuf, buf, sizeof (u_int32_t)); - return ntohl (ibuf); -} - -int32_t getLong (buf) - unsigned char *buf; -{ - long ibuf; - - memcpy (&ibuf, buf, sizeof (int32_t)); - return ntohl (ibuf); -} - -u_int16_t getUShort (buf) - unsigned char *buf; -{ - unsigned short ibuf; - - memcpy (&ibuf, buf, sizeof (u_int16_t)); - return ntohs (ibuf); -} - -int16_t getShort (buf) - unsigned char *buf; -{ - short ibuf; - - memcpy (&ibuf, buf, sizeof (int16_t)); - return ntohs (ibuf); -} - -void putULong (obuf, val) - unsigned char *obuf; - u_int32_t val; -{ - u_int32_t tmp = htonl (val); - memcpy (obuf, &tmp, sizeof tmp); -} - -void putLong (obuf, val) - unsigned char *obuf; - int32_t val; -{ - int32_t tmp = htonl (val); - memcpy (obuf, &tmp, sizeof tmp); -} - -void putUShort (obuf, val) - unsigned char *obuf; - u_int16_t val; -{ - u_int16_t tmp = htonl (val); - memcpy (obuf, &tmp, sizeof tmp); -} - -void putShort (obuf, val) - unsigned char *obuf; - int16_t val; -{ - int16_t tmp = htonl (val); - memcpy (obuf, &tmp, sizeof tmp); -} - diff --git a/common/dispatch.c b/common/dispatch.c deleted file mode 100644 index 1985fb4e..00000000 --- a/common/dispatch.c +++ /dev/null @@ -1,503 +0,0 @@ -/* dispatch.c - - Network input dispatcher... */ - -/* - * Copyright (c) 1995, 1996 The Internet Software Consortium. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names - * of its contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This software has been written for the Internet Software Consortium - * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie - * Enterprises. To learn more about the Internet Software Consortium, - * see ``http://www.vix.com/isc''. To learn more about Vixie - * Enterprises, see ``http://www.vix.com''. - */ - -#ifndef lint -static char copyright[] = -"$Id: dispatch.c,v 1.27 1996/11/08 20:06:29 mellon Exp $ Copyright (c) 1995, 1996 The Internet Software Consortium. All rights reserved.\n"; -#endif /* not lint */ - -#include "dhcpd.h" -#include <sys/ioctl.h> - -struct interface_info *interfaces; - -static void got_one PROTO ((struct interface_info *)); - -/* Use the SIOCGIFCONF ioctl to get a list of all the attached interfaces. - For each interface that's of type INET and not the loopback interface, - register that interface with the network I/O software, figure out what - subnet it's on, and add it to the list of interfaces. */ - -void discover_interfaces (serverP) - int serverP; -{ - struct interface_info *tmp; - struct interface_info *last; - char buf [8192]; - struct ifconf ic; - struct ifreq ifr; - int i; - int sock; - int address_count = 0; - struct subnet *subnet; - struct shared_network *share; - struct sockaddr_in foo; - int ir; -#ifdef ALIAS_NAMES_PERMUTED - char *s; -#endif -#ifdef USE_FALLBACK - static struct shared_network fallback_network; -#endif - - /* Create an unbound datagram socket to do the SIOCGIFADDR ioctl on. */ - if ((sock = socket (AF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0) - error ("Can't create addrlist socket"); - - /* Get the interface configuration information... */ - ic.ifc_len = sizeof buf; - ic.ifc_ifcu.ifcu_buf = (caddr_t)buf; - i = ioctl(sock, SIOCGIFCONF, &ic); - - if (i < 0) - error ("ioctl: SIOCGIFCONF: %m"); - - if (interfaces) - ir = 0; - else - ir = INTERFACE_REQUESTED; - - /* Cycle through the list of interfaces looking for IP addresses. - Go through twice; once to count the number if addresses, and a - second time to copy them into an array of addresses. */ - for (i = 0; i < ic.ifc_len;) { - struct ifreq *ifp = (struct ifreq *)((caddr_t)ic.ifc_req + i); -#ifdef HAVE_SA_LEN - i += (sizeof ifp -> ifr_name) + ifp -> ifr_addr.sa_len; -#else - i += sizeof *ifp; -#endif - -#ifdef ALIAS_NAMES_PERMUTED - if ((s = strrchr (ifp -> ifr_name, ':'))) { - *s = 0; - } -#endif - - - /* See if this is the sort of interface we want to - deal with. */ - strcpy (ifr.ifr_name, ifp -> ifr_name); - if (ioctl (sock, SIOCGIFFLAGS, &ifr) < 0) - error ("Can't get interface flags for %s: %m", - ifr.ifr_name); - - /* Skip loopback, point-to-point and down interfaces. */ - if ((ifr.ifr_flags & IFF_LOOPBACK) || - (ifr.ifr_flags & IFF_POINTOPOINT) || - !(ifr.ifr_flags & IFF_UP)) - continue; - - /* See if we've seen an interface that matches this one. */ - for (tmp = interfaces; tmp; tmp = tmp -> next) - if (!strcmp (tmp -> name, ifp -> ifr_name)) - break; - - /* If there isn't already an interface by this name, - allocate one. */ - if (!tmp) { - tmp = ((struct interface_info *) - dmalloc (sizeof *tmp, "get_interface_list")); - if (!tmp) - error ("Insufficient memory to %s %s", - "record interface", ifp -> ifr_name); - strcpy (tmp -> name, ifp -> ifr_name); - tmp -> next = interfaces; - tmp -> flags = ir; - interfaces = tmp; - } - - /* If we have the capability, extract link information - and record it in a linked list. */ -#ifdef AF_LINK - if (ifp -> ifr_addr.sa_family == AF_LINK) { - struct sockaddr_dl *foo = ((struct sockaddr_dl *) - (&ifp -> ifr_addr)); - tmp -> hw_address.hlen = foo -> sdl_alen; - tmp -> hw_address.htype = HTYPE_ETHER; /* XXX */ - memcpy (tmp -> hw_address.haddr, - LLADDR (foo), foo -> sdl_alen); - } else -#endif /* AF_LINK */ - - if (ifp -> ifr_addr.sa_family == AF_INET) { - struct iaddr addr; - - /* Get a pointer to the address... */ - memcpy (&foo, &ifp -> ifr_addr, - sizeof ifp -> ifr_addr); - - /* We don't want the loopback interface. */ - if (foo.sin_addr.s_addr == htonl (INADDR_LOOPBACK)) - continue; - - - /* If this is the first real IP address we've - found, keep a pointer to ifreq structure in - which we found it. */ - if (!tmp -> tif) - tmp -> tif = ifp; - - /* Grab the address... */ - addr.len = 4; - memcpy (addr.iabuf, &foo.sin_addr.s_addr, - addr.len); - - /* If this address matches the server identifier, - make a note of it. */ - if (addr_eq (addr, server_identifier)) - server_identifier_matched = 1; - - /* If there's a registered subnet for this address, - connect it together... */ - if ((subnet = find_subnet (addr))) { - /* If this interface has multiple aliases - on the same subnet, ignore all but the - first we encounter. */ - if (!subnet -> interface) { - subnet -> interface = tmp; - subnet -> interface_address = addr; - } else if (subnet -> interface != tmp) { - warn ("Multiple %s %s: %s %s", - "interfaces match the", - "same subnet", - subnet -> interface -> name, - tmp -> name); - } - share = subnet -> shared_network; - if (tmp -> shared_network && - tmp -> shared_network != share) { - warn ("Interface %s matches %s", - tmp -> name, - "multiple shared networks"); - } else { - tmp -> shared_network = share; - } - - if (!share -> interface) { - share -> interface = tmp; - } else if (share -> interface != tmp) { - warn ("Multiple %s %s: %s %s", - "interfaces match the", - "same shared network", - share -> interface -> name, - tmp -> name); - } - } - } - } - - /* Weed out the interfaces that did not have IP addresses. */ - last = (struct interface_info *)0; - for (tmp = interfaces; tmp; tmp = tmp -> next) { - if (!tmp -> tif || !(tmp -> flags & INTERFACE_REQUESTED)) { - if ((tmp -> flags & INTERFACE_REQUESTED) != ir) - error ("%s: not found", tmp -> name); - if (!last) - interfaces = interfaces -> next; - else - last -> next = tmp -> next; - continue; - } - last = tmp; - - memcpy (&foo, &tmp -> tif -> ifr_addr, - sizeof tmp -> tif -> ifr_addr); - - /* We must have a subnet declaration for each interface. */ - if (!tmp -> shared_network && serverP) - error ("No subnet declaration for %s (%s).", - tmp -> name, inet_ntoa (foo.sin_addr)); - - /* Find subnets that don't have valid interface - addresses... */ - for (subnet = (tmp -> shared_network - ? tmp -> shared_network -> subnets - : (struct subnet *)0); - subnet; subnet = subnet -> next_sibling) { - if (!subnet -> interface_address.len) { - /* Set the interface address for this subnet - to the first address we found. */ - subnet -> interface_address.len = 4; - memcpy (subnet -> interface_address.iabuf, - &foo.sin_addr.s_addr, 4); - } - } - - /* If a server identifier wasn't specified, take it - from the first IP address we see... */ - if (!server_identifier.len) { - if (address_count > 1) - warn ("no server identifier specified."); - server_identifier.len = 4; - memcpy (server_identifier.iabuf, - &foo.sin_addr.s_addr, 4); - /* Flag the server identifier as having matched, - so we don't generate a spurious warning. */ - server_identifier_matched = 1; - } - - - /* Register the interface... */ - if_register_receive (tmp, tmp -> tif); - if_register_send (tmp, tmp -> tif); - - tmp -> tif = (struct ifreq *)0; /* Can't keep this. */ - } - if (!server_identifier_matched && serverP) - warn ("no interface address matches server identifier"); - - close (sock); - -#ifdef USE_FALLBACK - strcpy (fallback_interface.name, "fallback"); - fallback_interface.shared_network = &fallback_network; - fallback_network.name = "fallback-net"; - if_register_fallback (&fallback_interface, (struct ifreq *)0); -#endif -} - -#ifdef USE_POLL -/* Wait for packets to come in using poll(). Anyway, when a packet - comes in, call receive_packet to receive the packet and possibly - strip hardware addressing information from it, and then call - do_packet to try to do something with it. - - As you can see by comparing this with the code that uses select(), - below, this is gratuitously complex. Quelle surprise, eh? This is - SysV we're talking about, after all, and even in the 90's, it - wouldn't do for SysV to make networking *easy*, would it? Rant, - rant... */ - -void dispatch () -{ - struct interface_info *l; - int nfds = 0; - struct pollfd *fds; - int count; - int i; - - nfds = 0; - for (l = interfaces; l; l = l -> next) { - ++nfds; - } -#ifdef USE_FALLBACK - ++nfds; -#endif - fds = (struct pollfd *)malloc ((nfds) * sizeof (struct pollfd)); - if (!fds) - error ("Can't allocate poll structures."); - - i = 0; - for (l = interfaces; l; l = l -> next) { - fds [i].fd = l -> rfdesc; - fds [i].events = POLLIN; - fds [i].revents = 0; - ++i; - } - -#ifdef USE_FALLBACK - fds [i].fd = fallback_interface.wfdesc; - fds [i].events = POLLIN; - fds [i].revents = 0; - ++i; -#endif - - do { - /* Wait for a packet or a timeout... XXX */ - count = poll (fds, nfds, -1); - - /* Get the current time... */ - GET_TIME (&cur_time); - - /* Not likely to be transitory... */ - if (count < 0) - error ("poll: %m"); - - i = 0; - for (l = interfaces; l; l = l -> next) { - if ((fds [i].revents & POLLIN)) { - fds [i].revents = 0; - got_one (l); - } - ++i; - } -#ifdef USE_FALLBACK - if (fds [i].revents & POLLIN) - fallback_discard (&fallback_interface); -#endif - } while (1); -} -#else -/* Wait for packets to come in using select(). When one does, call - receive_packet to receive the packet and possibly strip hardware - addressing information from it, and then call do_packet to try to - do something with it. */ - -void dispatch () -{ - fd_set r, w, x; - struct interface_info *l; - int max = 0; - int count; - - FD_ZERO (&r); - FD_ZERO (&w); - FD_ZERO (&x); - - do { - /* Set up the read mask. */ - for (l = interfaces; l; l = l -> next) { - FD_SET (l -> rfdesc, &r); - FD_SET (l -> rfdesc, &x); - if (l -> rfdesc > max) - max = l -> rfdesc; - } -#ifdef USE_FALLBACK - FD_SET (fallback_interface.wfdesc, &r); - if (fallback_interface.wfdesc > max) - max = fallback_interface.wfdesc; -#endif - - /* Wait for a packet or a timeout... XXX */ - count = select (max + 1, &r, &w, &x, (struct timeval *)0); - - /* Get the current time... */ - GET_TIME (&cur_time); - - /* Not likely to be transitory... */ - if (count < 0) - error ("select: %m"); - - for (l = interfaces; l; l = l -> next) { - if (!FD_ISSET (l -> rfdesc, &r)) - continue; - got_one (l); - } -#ifdef USE_FALLBACK - if (FD_ISSET (fallback_interface.wfdesc, &r)) - fallback_discard (&fallback_interface); -#endif - } while (1); -} -#endif /* USE_POLL */ - -static void got_one (l) - struct interface_info *l; -{ - struct sockaddr_in from; - struct hardware hfrom; - struct iaddr ifrom; - int result; - static unsigned char packbuf [4095]; /* Packet input buffer. - Must be as large as largest - possible MTU. */ - - if ((result = receive_packet (l, packbuf, sizeof packbuf, - &from, &hfrom)) < 0) { - warn ("receive_packet failed on %s: %m", l -> name); - return; - } - if (result == 0) - return; - - ifrom.len = 4; - memcpy (ifrom.iabuf, &from.sin_addr, ifrom.len); - - do_packet (l, packbuf, result, - from.sin_port, ifrom, &hfrom); -} - -void do_packet (interface, packbuf, len, from_port, from, hfrom) - struct interface_info *interface; - unsigned char *packbuf; - int len; - unsigned short from_port; - struct iaddr from; - struct hardware *hfrom; -{ - struct packet tp; - struct dhcp_packet tdp; - - memcpy (&tdp, packbuf, len); - memset (&tp, 0, sizeof tp); - tp.raw = &tdp; - tp.packet_length = len; - tp.client_port = from_port; - tp.client_addr = from; - tp.interface = interface; - tp.haddr = hfrom; - - parse_options (&tp); - if (tp.options_valid && - tp.options [DHO_DHCP_MESSAGE_TYPE].data) - tp.packet_type = - tp.options [DHO_DHCP_MESSAGE_TYPE].data [0]; - if (tp.packet_type) - dhcp (&tp); - else if (tdp.op == BOOTREQUEST) - bootp (&tp); -} - -int locate_network (packet) - struct packet *packet; -{ - struct iaddr ia; - - /* If this came through a gateway, find the corresponding subnet... */ - if (packet -> raw -> giaddr.s_addr) { - struct subnet *subnet; - ia.len = 4; - memcpy (ia.iabuf, &packet -> raw -> giaddr, 4); - subnet = find_subnet (ia); - if (subnet) - packet -> shared_network = subnet -> shared_network; - else - packet -> shared_network = (struct shared_network *)0; - } else { - packet -> shared_network = - packet -> interface -> shared_network; - } - if (packet -> shared_network) - return 1; - return 0; -} diff --git a/common/errwarn.c b/common/errwarn.c deleted file mode 100644 index 34f965a0..00000000 --- a/common/errwarn.c +++ /dev/null @@ -1,256 +0,0 @@ -/* errwarn.c - - Errors and warnings... */ - -/* - * Copyright (c) 1996 The Internet Software Consortium. - * All Rights Reserved. - * Copyright (c) 1995 RadioMail Corporation. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of RadioMail Corporation, the Internet Software - * Consortium nor the names of its contributors may be used to endorse - * or promote products derived from this software without specific - * prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY RADIOMAIL CORPORATION, THE INTERNET - * SOFTWARE CONSORTIUM AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL RADIOMAIL CORPORATION OR CONTRIBUTORS - * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED - * OF THE POSSIBILITY OF SUCH DAMAGE. - * - * This software was written for RadioMail Corporation by Ted Lemon - * under a contract with Vixie Enterprises. Further modifications have - * been made for the Internet Software Consortium under a contract - * with Vixie Laboratories. - */ - -#ifndef lint -static char copyright[] = -"$Id: errwarn.c,v 1.12 1996/11/08 20:07:31 mellon Exp $ Copyright (c) 1996 The Internet Software Consortium. All rights reserved.\n"; -#endif /* not lint */ - -#include "dhcpd.h" -#include <errno.h> - -static void do_percentm PROTO ((char *obuf, char *ibuf)); - -static char mbuf [1024]; -static char fbuf [1024]; - -int warnings_occurred; - -/* Log an error message, then exit... */ - -void error (ANSI_DECL(char *) fmt, VA_DOTDOTDOT) - KandR (char *fmt;) - va_dcl -{ - va_list list; - extern int logged_in; - - do_percentm (fbuf, fmt); - - VA_start (list, fmt); - vsnprintf (mbuf, sizeof mbuf, fbuf, list); - va_end (list); - -#ifndef DEBUG - syslog (log_priority | LOG_ERR, mbuf); -#endif - - /* Also log it to stderr? */ - if (log_perror) { - write (2, mbuf, strlen (mbuf)); - write (2, "\n", 1); - } - - cleanup (); - exit (1); -} - -/* Log a warning message... */ - -int warn (ANSI_DECL (char *) fmt, VA_DOTDOTDOT) - KandR (char *fmt;) - va_dcl -{ - va_list list; - - do_percentm (fbuf, fmt); - - VA_start (list, fmt); - vsnprintf (mbuf, sizeof mbuf, fbuf, list); - va_end (list); - -#ifndef DEBUG - syslog (log_priority | LOG_ERR, mbuf); -#endif - - if (log_perror) { - write (2, mbuf, strlen (mbuf)); - write (2, "\n", 1); - } - - return 0; -} - -/* Log a note... */ - -int note (ANSI_DECL (char *) fmt, VA_DOTDOTDOT) - KandR (char *fmt;) - va_dcl -{ - va_list list; - - do_percentm (fbuf, fmt); - - VA_start (list, fmt); - vsnprintf (mbuf, sizeof mbuf, fbuf, list); - va_end (list); - -#ifndef DEBUG - syslog (log_priority | LOG_INFO, mbuf); -#endif - - if (log_perror) { - write (2, mbuf, strlen (mbuf)); - write (2, "\n", 1); - } - - return 0; -} - -/* Log a debug message... */ - -int debug (ANSI_DECL (char *) fmt, VA_DOTDOTDOT) - KandR (char *fmt;) - va_dcl -{ - va_list list; - - do_percentm (fbuf, fmt); - - VA_start (list, fmt); - vsnprintf (mbuf, sizeof mbuf, fbuf, list); - va_end (list); - -#ifndef DEBUG - syslog (log_priority | LOG_DEBUG, mbuf); -#endif - - if (log_perror) { - write (2, mbuf, strlen (mbuf)); - write (2, "\n", 1); - } - - return 0; -} - -/* Find %m in the input string and substitute an error message string. */ - -static void do_percentm (obuf, ibuf) - char *obuf; - char *ibuf; -{ - char *s = ibuf; - char *p = obuf; - int infmt = 0; - - while (*s) - { - if (infmt) - { - if (*s == 'm') - { - strcpy (p - 1, strerror (errno)); - p += strlen (p); - ++s; - } - else - *p++ = *s++; - infmt = 0; - } - else - { - if (*s == '%') - infmt = 1; - *p++ = *s++; - } - } - *p = 0; -} - - -int parse_warn (ANSI_DECL (char *) fmt, VA_DOTDOTDOT) - KandR (char *fmt;) - va_dcl -{ - va_list list; - static char spaces [] = " "; - - do_percentm (mbuf, fmt); -#ifndef NO_SNPRINTF - snprintf (fbuf, sizeof fbuf, "%s line %d: %s", - tlname, lexline, mbuf); -#else - sprintf (fbuf, "%s line %d: %s", - tlname, lexline, mbuf); -#endif - - VA_start (list, fmt); - vsnprintf (mbuf, sizeof mbuf, fbuf, list); - va_end (list); - -#ifndef DEBUG - syslog (log_priority | LOG_ERR, mbuf); - syslog (log_priority | LOG_ERR, token_line); - if (lexline < 81) - syslog (log_priority | LOG_ERR, - "%s^", &spaces [sizeof spaces - lexchar]); -#endif - - if (log_perror) { - write (2, mbuf, strlen (mbuf)); - write (2, "\n", 1); - write (2, token_line, strlen (token_line)); - write (2, "\n", 1); - write (2, spaces, lexchar - 1); - write (2, "^\n", 2); - } - - warnings_occurred = 1; - - return 0; -} - -#ifdef NO_STRERROR -char *strerror (err) - int err; -{ - extern char *sys_errlist []; - extern int sys_nerr; - static char errbuf [128]; - - if (err < 0 || err >= sys_nerr) { - sprintf (errbuf, "Error %d", err); - return errbuf; - } - return sys_errlist [err]; -} -#endif /* NO_STRERROR */ diff --git a/common/hash.c b/common/hash.c deleted file mode 100644 index e8e93752..00000000 --- a/common/hash.c +++ /dev/null @@ -1,174 +0,0 @@ -/* hash.c - - Routines for manipulating hash tables... */ - -/* - * Copyright (c) 1995, 1996 The Internet Software Consortium. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names - * of its contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This software has been written for the Internet Software Consortium - * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie - * Enterprises. To learn more about the Internet Software Consortium, - * see ``http://www.vix.com/isc''. To learn more about Vixie - * Enterprises, see ``http://www.vix.com''. - */ - -#ifndef lint -static char copyright[] = -"$Id: hash.c,v 1.9 1996/09/09 07:04:45 mellon Exp $ Copyright (c) 1995, 1996 The Internet Software Consortium. All rights reserved.\n"; -#endif /* not lint */ - -#include "dhcpd.h" - -static INLINE int do_hash PROTO ((char *, int, int)); - -struct hash_table *new_hash () -{ - struct hash_table *rv = new_hash_table (DEFAULT_HASH_SIZE, "new_hash"); - if (!rv) - return rv; - memset (&rv -> buckets [0], 0, - DEFAULT_HASH_SIZE * sizeof (struct hash_bucket *)); - return rv; -} - -static INLINE int do_hash (name, len, size) - char *name; - int len; - int size; -{ - register int accum = 0; - register unsigned char *s = (unsigned char *)name; - int i = len; - if (i) { - while (i--) { - /* Add the character in... */ - accum += *s++; - /* Add carry back in... */ - while (accum > 255) { - accum = (accum & 255) + (accum >> 8); - } - } - } else { - while (*s) { - /* Add the character in... */ - accum += *s++; - /* Add carry back in... */ - while (accum > 255) { - accum = (accum & 255) + (accum >> 8); - } - } - } - return accum % size; -} - -void add_hash (table, name, len, pointer) - struct hash_table *table; - int len; - char *name; - unsigned char *pointer; -{ - int hashno; - struct hash_bucket *bp; - - if (!table) - return; - - hashno = do_hash (name, len, table -> hash_count); - bp = new_hash_bucket ("add_hash"); - - if (!bp) { - warn ("Can't add %s to hash table.", name); - return; - } - bp -> name = name; - bp -> value = pointer; - bp -> next = table -> buckets [hashno]; - bp -> len = len; - table -> buckets [hashno] = bp; -} - -void delete_hash_entry (table, name, len) - struct hash_table *table; - int len; - char *name; -{ - int hashno; - struct hash_bucket *bp, *pbp = (struct hash_bucket *)0; - - if (!table) - return; - - hashno = do_hash (name, len, table -> hash_count); - - /* Go through the list looking for an entry that matches; - if we find it, delete it. */ - for (bp = table -> buckets [hashno]; bp; bp = bp -> next) { - if ((!bp -> len && !strcmp (bp -> name, name)) || - (bp -> len == len && - !memcmp (bp -> name, name, len))) { - if (pbp) { - pbp -> next = bp -> next; - } else { - table -> buckets [hashno] = bp -> next; - } - free_hash_bucket (bp, "delete_hash_entry"); - break; - } - pbp = bp; /* jwg, 9/6/96 - nice catch! */ - } -} - -unsigned char *hash_lookup (table, name, len) - struct hash_table *table; - char *name; - int len; -{ - int hashno; - struct hash_bucket *bp; - - if (!table) - return (unsigned char *)0; - hashno = do_hash (name, len, table -> hash_count); - - if (len) { - for (bp = table -> buckets [hashno]; bp; bp = bp -> next) { - if (len == bp -> len - && !memcmp (bp -> name, name, len)) - return bp -> value; - } - } else { - for (bp = table -> buckets [hashno]; bp; bp = bp -> next) - if (!strcmp (bp -> name, name)) - return bp -> value; - } - return (unsigned char *)0; -} - diff --git a/common/inet.c b/common/inet.c deleted file mode 100644 index 000d9718..00000000 --- a/common/inet.c +++ /dev/null @@ -1,154 +0,0 @@ -/* inet.c - - Subroutines to manipulate internet addresses in a safely portable - way... */ - -/* - * Copyright (c) 1996 The Internet Software Consortium. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names - * of its contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This software has been written for the Internet Software Consortium - * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie - * Enterprises. To learn more about the Internet Software Consortium, - * see ``http://www.vix.com/isc''. To learn more about Vixie - * Enterprises, see ``http://www.vix.com''. - */ - -#include "dhcpd.h" - -/* Return just the network number of an internet address... */ - -struct iaddr subnet_number (addr, mask) - struct iaddr addr; - struct iaddr mask; -{ - int i; - struct iaddr rv; - - rv.len = 0; - - /* Both addresses must have the same length... */ - if (addr.len != mask.len) - return rv; - - rv.len = addr.len; - for (i = 0; i < rv.len; i++) - rv.iabuf [i] = addr.iabuf [i] & mask.iabuf [i]; - return rv; -} - -/* Combine a network number and a integer to produce an internet address. - This won't work for subnets with more than 32 bits of host address, but - maybe this isn't a problem. */ - -struct iaddr ip_addr (subnet, mask, host_address) - struct iaddr subnet; - struct iaddr mask; - u_int32_t host_address; -{ - int i, j, k; - u_int32_t swaddr; - struct iaddr rv; - unsigned char habuf [sizeof swaddr]; - - swaddr = htonl (host_address); - memcpy (habuf, &swaddr, sizeof swaddr); - - /* Combine the subnet address and the host address. If - the host address is bigger than can fit in the subnet, - return a zero-length iaddr structure. */ - rv = subnet; - j = rv.len - sizeof habuf; - for (i = sizeof habuf - 1; i >= 0; i--) { - if (mask.iabuf [i + j]) { - if (habuf [i] > (mask.iabuf [i + j] ^ 0xFF)) { - rv.len = 0; - return rv; - } - for (k = i - 1; k >= 0; k--) { - if (habuf [k]) { - rv.len = 0; - return rv; - } - } - rv.iabuf [i + j] |= habuf [i]; - break; - } else - rv.iabuf [i + j] = habuf [i]; - } - - return rv; -} - -u_int32_t host_addr (addr, mask) - struct iaddr addr; - struct iaddr mask; -{ - int i; - u_int32_t swaddr; - struct iaddr rv; - - rv.len = 0; - - /* Mask out the network bits... */ - rv.len = addr.len; - for (i = 0; i < rv.len; i++) - rv.iabuf [i] = addr.iabuf [i] & ~mask.iabuf [i]; - - /* Copy out up to 32 bits... */ - memcpy (&swaddr, &rv.iabuf [rv.len - sizeof swaddr], sizeof swaddr); - - /* Swap it and return it. */ - return ntohl (swaddr); -} - -int addr_eq (addr1, addr2) - struct iaddr addr1, addr2; -{ - if (addr1.len != addr2.len) - return 0; - return memcmp (addr1.iabuf, addr2.iabuf, addr1.len) == 0; -} - -char *piaddr (addr) - struct iaddr addr; -{ - static char pbuf [4 * 16]; - char *s = pbuf; - int i; - - if (addr.len == 0) { - strcpy (s, "<null address>"); - } - for (i = 0; i < addr.len; i++) { - sprintf (s, "%s%d", i ? "." : "", addr.iabuf [i]); - s += strlen (s); - } - return pbuf; -} diff --git a/common/memory.c b/common/memory.c deleted file mode 100644 index 6f7617c2..00000000 --- a/common/memory.c +++ /dev/null @@ -1,873 +0,0 @@ -/* memory.c - - Memory-resident database... */ - -/* - * Copyright (c) 1995, 1996 The Internet Software Consortium. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names - * of its contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This software has been written for the Internet Software Consortium - * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie - * Enterprises. To learn more about the Internet Software Consortium, - * see ``http://www.vix.com/isc''. To learn more about Vixie - * Enterprises, see ``http://www.vix.com''. - */ - -#ifndef lint -static char copyright[] = -"$Id: memory.c,v 1.22 1996/11/08 20:09:10 mellon Exp $ Copyright (c) 1995, 1996 The Internet Software Consortium. All rights reserved.\n"; -#endif /* not lint */ - -#include "dhcpd.h" - -static struct subnet *subnets; -static struct shared_network *shared_networks; -static struct hash_table *host_hw_addr_hash; -static struct hash_table *host_uid_hash; -static struct hash_table *lease_uid_hash; -static struct hash_table *lease_ip_addr_hash; -static struct hash_table *lease_hw_addr_hash; -static struct lease *dangling_leases; - -static struct hash_table *vendor_class_hash; -static struct hash_table *user_class_hash; - -void enter_host (hd) - struct host_decl *hd; -{ - struct host_decl *hp = (struct host_decl *)0; - struct host_decl *np = (struct host_decl *)0; - - hd -> n_ipaddr = (struct host_decl *)0; - - if (hd -> interface.hlen) { - if (!host_hw_addr_hash) - host_hw_addr_hash = new_hash (); - else - hp = (struct host_decl *) - hash_lookup (host_hw_addr_hash, - hd -> interface.haddr, - hd -> interface.hlen); - - /* If there isn't already a host decl matching this - address, add it to the hash table. */ - if (!hp) - add_hash (host_hw_addr_hash, - hd -> interface.haddr, hd -> interface.hlen, - (unsigned char *)hd); - } - - /* If there was already a host declaration for this hardware - address, add this one to the end of the list. */ - - if (hp) { - for (np = hp; np -> n_ipaddr; np = np -> n_ipaddr) - ; - np -> n_ipaddr = hd; - } - - if (hd -> group -> options [DHO_DHCP_CLIENT_IDENTIFIER]) { - if (!tree_evaluate (hd -> group -> options - [DHO_DHCP_CLIENT_IDENTIFIER])) - return; - - /* If there's no uid hash, make one; otherwise, see if - there's already an entry in the hash for this host. */ - if (!host_uid_hash) { - host_uid_hash = new_hash (); - hp = (struct host_decl *)0; - } else - hp = (struct host_decl *) hash_lookup - (host_uid_hash, - hd -> group -> options - [DHO_DHCP_CLIENT_IDENTIFIER] -> value, - hd -> group -> options - [DHO_DHCP_CLIENT_IDENTIFIER] -> len); - - /* If there's already a host declaration for this - client identifier, add this one to the end of the - list. Otherwise, add it to the hash table. */ - if (hp) { - /* Don't link it in twice... */ - if (!np) { - for (np = hp; np -> n_ipaddr; - np = np -> n_ipaddr) - ; - np -> n_ipaddr = hd; - } - } else { - add_hash (host_uid_hash, - hd -> group -> options - [DHO_DHCP_CLIENT_IDENTIFIER] -> value, - hd -> group -> options - [DHO_DHCP_CLIENT_IDENTIFIER] -> len, - (unsigned char *)hd); - } - } -} - -struct host_decl *find_hosts_by_haddr (htype, haddr, hlen) - int htype; - unsigned char *haddr; - int hlen; -{ - struct host_decl *foo; - - foo = (struct host_decl *)hash_lookup (host_hw_addr_hash, - haddr, hlen); - return foo; -} - -struct host_decl *find_hosts_by_uid (data, len) - unsigned char *data; - int len; -{ - struct host_decl *foo; - - foo = (struct host_decl *)hash_lookup (host_uid_hash, data, len); - return foo; -} - -/* More than one host_decl can be returned by find_hosts_by_haddr or - find_hosts_by_uid, and each host_decl can have multiple addresses. - Loop through the list of hosts, and then for each host, through the - list of addresses, looking for an address that's in the same shared - network as the one specified. Store the matching address through - the addr pointer, update the host pointer to point at the host_decl - that matched, and return the subnet that matched. */ - -struct subnet *find_host_for_network (host, addr, share) - struct host_decl **host; - struct iaddr *addr; - struct shared_network *share; -{ - int i; - struct subnet *subnet; - struct iaddr ip_address; - struct host_decl *hp; - - for (hp = *host; hp; hp = hp -> n_ipaddr) { - if (!hp -> fixed_addr || !tree_evaluate (hp -> fixed_addr)) - continue; - for (i = 0; i < hp -> fixed_addr -> len; i += 4) { - ip_address.len = 4; - memcpy (ip_address.iabuf, - hp -> fixed_addr -> value + i, 4); - subnet = find_grouped_subnet (share, ip_address); - if (subnet) { - *addr = ip_address; - *host = hp; - return subnet; - } - } - } - return (struct subnet *)0; -} - -void new_address_range (low, high, subnet, dynamic) - struct iaddr low, high; - struct subnet *subnet; - int dynamic; -{ - struct lease *address_range, *lp, *plp; - struct iaddr net; - int min, max, i; - char lowbuf [16], highbuf [16], netbuf [16]; - struct shared_network *share = subnet -> shared_network; - struct hostent *h; - struct in_addr ia; - - /* All subnets should have attached shared network structures. */ - if (!share) { - strcpy (netbuf, piaddr (subnet -> net)); - error ("No shared network for network %s (%s)", - netbuf, piaddr (subnet -> netmask)); - } - - /* Initialize the hash table if it hasn't been done yet. */ - if (!lease_uid_hash) - lease_uid_hash = new_hash (); - if (!lease_ip_addr_hash) - lease_ip_addr_hash = new_hash (); - if (!lease_hw_addr_hash) - lease_hw_addr_hash = new_hash (); - - /* Make sure that high and low addresses are in same subnet. */ - net = subnet_number (low, subnet -> netmask); - if (!addr_eq (net, subnet_number (high, subnet -> netmask))) { - strcpy (lowbuf, piaddr (low)); - strcpy (highbuf, piaddr (high)); - strcpy (netbuf, piaddr (subnet -> netmask)); - error ("Address range %s to %s, netmask %s spans %s!", - lowbuf, highbuf, netbuf, "multiple subnets"); - } - - /* Get the high and low host addresses... */ - max = host_addr (high, subnet -> netmask); - min = host_addr (low, subnet -> netmask); - - /* Allow range to be specified high-to-low as well as low-to-high. */ - if (min > max) { - max = min; - min = host_addr (high, subnet -> netmask); - } - - /* Get a lease structure for each address in the range. */ - address_range = new_leases (max - min + 1, "new_address_range"); - if (!address_range) { - strcpy (lowbuf, piaddr (low)); - strcpy (highbuf, piaddr (high)); - error ("No memory for address range %s-%s.", lowbuf, highbuf); - } - memset (address_range, 0, (sizeof *address_range) * (max - min + 1)); - - /* Fill in the last lease if it hasn't been already... */ - if (!share -> last_lease) { - share -> last_lease = &address_range [0]; - } - - /* Fill out the lease structures with some minimal information. */ - for (i = 0; i < max - min + 1; i++) { - address_range [i].ip_addr = - ip_addr (subnet -> net, subnet -> netmask, i + min); - address_range [i].starts = - address_range [i].timestamp = MIN_TIME; - address_range [i].ends = MIN_TIME; - address_range [i].subnet = subnet; - address_range [i].shared_network = share; - address_range [i].flags = dynamic ? DYNAMIC_BOOTP_OK : 0; - - memcpy (&ia, address_range [i].ip_addr.iabuf, 4); - - if (subnet -> group -> get_lease_hostnames) { - h = gethostbyaddr ((char *)&ia, sizeof ia, AF_INET); - if (!h) - warn ("No hostname for %s", inet_ntoa (ia)); - else { - address_range [i].hostname = - malloc (strlen (h -> h_name) + 1); - if (!address_range [i].hostname) - error ("no memory for hostname %s.", - h -> h_name); - strcpy (address_range [i].hostname, - h -> h_name); - } - } - - /* Link this entry into the list. */ - address_range [i].next = share -> leases; - address_range [i].prev = (struct lease *)0; - share -> leases = &address_range [i]; - if (address_range [i].next) - address_range [i].next -> prev = share -> leases; - add_hash (lease_ip_addr_hash, - address_range [i].ip_addr.iabuf, - address_range [i].ip_addr.len, - (unsigned char *)&address_range [i]); - } - - /* Find out if any dangling leases are in range... */ - plp = (struct lease *)0; - for (lp = dangling_leases; lp; lp = lp -> next) { - struct iaddr lnet; - int lhost; - - lnet = subnet_number (lp -> ip_addr, subnet -> netmask); - lhost = host_addr (lp -> ip_addr, subnet -> netmask); - - /* If it's in range, fill in the real lease structure with - the dangling lease's values, and remove the lease from - the list of dangling leases. */ - if (addr_eq (lnet, subnet -> net) && - lhost >= i && lhost <= max) { - if (plp) { - plp -> next = lp -> next; - } else { - dangling_leases = lp -> next; - } - lp -> next = (struct lease *)0; - supersede_lease (&address_range [lhost - i], lp, 0); - free_lease (lp, "new_address_range"); - } else - plp = lp; - } -} - -struct subnet *find_subnet (addr) - struct iaddr addr; -{ - struct subnet *rv; - - for (rv = subnets; rv; rv = rv -> next_subnet) { - if (addr_eq (subnet_number (addr, rv -> netmask), rv -> net)) - return rv; - } - return (struct subnet *)0; -} - -struct subnet *find_grouped_subnet (share, addr) - struct shared_network *share; - struct iaddr addr; -{ - struct subnet *rv; - - for (rv = share -> subnets; rv; rv = rv -> next_sibling) { - if (addr_eq (subnet_number (addr, rv -> netmask), rv -> net)) - return rv; - } - return (struct subnet *)0; -} - -/* Enter a new subnet into the subnet list. */ - -void enter_subnet (subnet) - struct subnet *subnet; -{ - struct subnet *scan; - - /* Check for duplicates... */ - for (scan = subnets; scan; scan = scan -> next_subnet) { - if (addr_eq (subnet_number (subnet -> net, scan -> netmask), - scan -> net) || - addr_eq (subnet_number (scan -> net, subnet -> netmask), - subnet -> net)) { - char n1buf [16]; - int i, j; - for (i = 0; i < 32; i++) - if (subnet -> netmask.iabuf [3 - (i >> 3)] - & (1 << (i & 7))) - break; - for (j = 0; j < 32; j++) - if (scan -> netmask.iabuf [3 - (j >> 3)] - & (1 << (j & 7))) - break; - strcpy (n1buf, piaddr (subnet -> net)); - error ("subnet %s/%d conflicts with subnet %s/%d", - n1buf, i, piaddr (scan -> net), j); - } - } - - /* XXX Sort the nets into a balanced tree to make searching quicker. */ - subnet -> next_subnet = subnets; - subnets = subnet; -} - -/* Enter a new shared network into the shared network list. */ - -void enter_shared_network (share) - struct shared_network *share; -{ - /* XXX Sort the nets into a balanced tree to make searching quicker. */ - share -> next = shared_networks; - shared_networks = share; -} - -/* Enter a lease into the system. This is called by the parser each - time it reads in a new lease. If the subnet for that lease has - already been read in (usually the case), just update that lease; - otherwise, allocate temporary storage for the lease and keep it around - until we're done reading in the config file. */ - -void enter_lease (lease) - struct lease *lease; -{ - struct lease *comp = find_lease_by_ip_addr (lease -> ip_addr); - - /* If we don't have a place for this lease yet, save it for - later. */ - if (!comp) { - comp = new_lease ("enter_lease"); - if (!comp) { - error ("No memory for lease %s\n", - piaddr (lease -> ip_addr)); - } - *comp = *lease; - lease -> next = dangling_leases; - lease -> prev = (struct lease *)0; - dangling_leases = lease; - } else { - supersede_lease (comp, lease, 0); - } -} - -/* Replace the data in an existing lease with the data in a new lease; - adjust hash tables to suit, and insertion sort the lease into the - list of leases by expiry time so that we can always find the oldest - lease. */ - -int supersede_lease (comp, lease, commit) - struct lease *comp, *lease; - int commit; -{ - int enter_uid = 0; - int enter_hwaddr = 0; - struct lease *lp; - - /* Static leases are not currently kept in the database... */ - if (lease -> flags & STATIC_LEASE) - return 1; - - /* If the existing lease hasn't expired and has a different - unique identifier or, if it doesn't have a unique - identifier, a different hardware address, then the two - leases are in conflict. If the existing lease has a uid - and the new one doesn't, but they both have the same - hardware address, and dynamic bootp is allowed on this - lease, then we allow that, in case a dynamic BOOTP lease is - requested *after* a DHCP lease has been assigned. */ - - if (comp -> ends > cur_time && - ((comp -> uid && (lease -> uid || - !(lease -> flags & DYNAMIC_BOOTP_OK)) && - (comp -> uid_len != lease -> uid_len || - memcmp (comp -> uid, lease -> uid, comp -> uid_len))) || - (!comp -> uid && - ((comp -> hardware_addr.htype != - lease -> hardware_addr.htype) || - (comp -> hardware_addr.hlen != - lease -> hardware_addr.hlen) || - memcmp (comp -> hardware_addr.haddr, - lease -> hardware_addr.haddr, - comp -> hardware_addr.hlen))))) { - warn ("Lease conflict at %s", - piaddr (comp -> ip_addr)); - return 0; - } else { - /* If there's a Unique ID, dissociate it from the hash - table if necessary, and always free it. */ - if (comp -> uid) { - if (comp -> uid != lease -> uid) { - uid_hash_delete (comp); - enter_uid = 1; - free (comp -> uid); - comp -> uid = (unsigned char *)0; - } - } else - enter_uid = 1; - - if (comp -> hardware_addr.htype && - ((comp -> hardware_addr.hlen != - lease -> hardware_addr.hlen) || - (comp -> hardware_addr.htype != - lease -> hardware_addr.htype) || - memcmp (comp -> hardware_addr.haddr, - lease -> hardware_addr.haddr, - comp -> hardware_addr.hlen))) { - hw_hash_delete (comp); - enter_hwaddr = 1; - } else if (!comp -> hardware_addr.htype) - enter_hwaddr = 1; - - /* Copy the data files, but not the linkages. */ - comp -> starts = lease -> starts; - comp -> offered_expiry = lease -> offered_expiry; - comp -> timestamp = lease -> timestamp; - comp -> uid = lease -> uid; - comp -> uid_len = lease -> uid_len; - comp -> host = lease -> host; - comp -> hardware_addr = lease -> hardware_addr; - comp -> state = lease -> state; - comp -> flags = ((lease -> flags & ~PERSISTENT_FLAGS) | - (comp -> flags & ~EPHEMERAL_FLAGS)); - - /* Record the lease in the uid hash if necessary. */ - if (enter_uid && lease -> uid) { - uid_hash_add (comp); - } - - /* Record it in the hardware address hash if necessary. */ - if (enter_hwaddr && lease -> hardware_addr.htype) { - hw_hash_add (comp); - } - - /* Remove the lease from its current place in the - timeout sequence. */ - if (comp -> prev) { - comp -> prev -> next = comp -> next; - } else { - comp -> shared_network -> leases = comp -> next; - } - if (comp -> next) { - comp -> next -> prev = comp -> prev; - } - if (comp -> shared_network -> last_lease == comp) { - comp -> shared_network -> last_lease = comp -> prev; - } - - /* Find the last insertion point... */ - if (comp == comp -> shared_network -> insertion_point || - !comp -> shared_network -> insertion_point) { - lp = comp -> shared_network -> leases; - } else { - lp = comp -> shared_network -> insertion_point; - } - - if (!lp) { - /* Nothing on the list yet? Just make comp the - head of the list. */ - comp -> shared_network -> leases = comp; - comp -> shared_network -> last_lease = comp; - } else if (lp -> ends > lease -> ends) { - /* Skip down the list until we run out of list - or find a place for comp. */ - while (lp -> next && lp -> ends > lease -> ends) { - lp = lp -> next; - } - if (lp -> ends > lease -> ends) { - /* If we ran out of list, put comp - at the end. */ - lp -> next = comp; - comp -> prev = lp; - comp -> next = (struct lease *)0; - comp -> shared_network -> last_lease = comp; - } else { - /* If we didn't, put it between lp and - the previous item on the list. */ - if ((comp -> prev = lp -> prev)) - comp -> prev -> next = comp; - comp -> next = lp; - lp -> prev = comp; - } - } else { - /* Skip up the list until we run out of list - or find a place for comp. */ - while (lp -> prev && lp -> ends < lease -> ends) { - lp = lp -> prev; - } - if (lp -> ends < lease -> ends) { - /* If we ran out of list, put comp - at the beginning. */ - lp -> prev = comp; - comp -> next = lp; - comp -> prev = (struct lease *)0; - comp -> shared_network -> leases = comp; - } else { - /* If we didn't, put it between lp and - the next item on the list. */ - if ((comp -> next = lp -> next)) - comp -> next -> prev = comp; - comp -> prev = lp; - lp -> next = comp; - } - } - comp -> shared_network -> insertion_point = comp; - comp -> ends = lease -> ends; - } - - /* Return zero if we didn't commit the lease to permanent storage; - nonzero if we did. */ - return commit && write_lease (comp) && commit_leases (); -} - -/* Release the specified lease and re-hash it as appropriate. */ - -void release_lease (lease) - struct lease *lease; -{ - struct lease lt; - - lt = *lease; - lt.ends = cur_time; - supersede_lease (lease, <, 1); -} - -/* Abandon the specified lease (set its timeout to infinity and its - particulars to zero, and re-hash it as appropriate. */ - -void abandon_lease (lease) - struct lease *lease; -{ - struct lease lt; - - lt = *lease; - lt.ends = 0xFFFFFFFF; - warn ("Abandoning IP address %s\n", - piaddr (lease -> ip_addr)); - lt.hardware_addr.htype = -1; - lt.hardware_addr.hlen = 0; - lt.uid = (unsigned char *)0; - lt.uid_len = 0; - supersede_lease (lease, <, 1); -} - -/* Locate the lease associated with a given IP address... */ - -struct lease *find_lease_by_ip_addr (addr) - struct iaddr addr; -{ - struct lease *lease = (struct lease *)hash_lookup (lease_ip_addr_hash, - addr.iabuf, - addr.len); - return lease; -} - -struct lease *find_lease_by_uid (uid, len) - unsigned char *uid; - int len; -{ - struct lease *lease = (struct lease *)hash_lookup (lease_uid_hash, - uid, len); - return lease; -} - -struct lease *find_lease_by_hw_addr (hwaddr, hwlen) - unsigned char *hwaddr; - int hwlen; -{ - struct lease *lease = (struct lease *)hash_lookup (lease_hw_addr_hash, - hwaddr, hwlen); - return lease; -} - -/* Add the specified lease to the uid hash. */ - -void uid_hash_add (lease) - struct lease *lease; -{ - struct lease *head = - find_lease_by_uid (lease -> uid, lease -> uid_len); - struct lease *scan; - -#ifdef DEBUG - if (lease -> n_uid) - abort (); -#endif - - /* If it's not in the hash, just add it. */ - if (!head) - add_hash (lease_uid_hash, lease -> uid, - lease -> uid_len, (unsigned char *)lease); - else { - /* Otherwise, attach it to the end of the list. */ - for (scan = head; scan -> n_uid; scan = scan -> n_uid) -#ifdef DEBUG - if (scan == lease) - abort () -#endif - ; - scan -> n_uid = lease; - } -} - -/* Delete the specified lease from the uid hash. */ - -void uid_hash_delete (lease) - struct lease *lease; -{ - struct lease *head = - find_lease_by_uid (lease -> uid, lease -> uid_len); - struct lease *scan; - - /* If it's not in the hash, we have no work to do. */ - if (!head) { - lease -> n_uid = (struct lease *)0; - return; - } - - /* If the lease we're freeing is at the head of the list, - remove the hash table entry and add a new one with the - next lease on the list (if there is one). */ - if (head == lease) { - delete_hash_entry (lease_uid_hash, - lease -> uid, lease -> uid_len); - if (lease -> n_uid) - add_hash (lease_uid_hash, - lease -> n_uid -> uid, - lease -> n_uid -> uid_len, - (unsigned char *)(lease -> n_uid)); - } else { - /* Otherwise, look for the lease in the list of leases - attached to the hash table entry, and remove it if - we find it. */ - for (scan = head; scan -> n_uid; scan = scan -> n_uid) { - if (scan -> n_uid == lease) { - scan -> n_uid = scan -> n_uid -> n_uid; - break; - } - } - } - lease -> n_uid = (struct lease *)0; -} - -/* Add the specified lease to the hardware address hash. */ - -void hw_hash_add (lease) - struct lease *lease; -{ - struct lease *head = - find_lease_by_hw_addr (lease -> hardware_addr.haddr, - lease -> hardware_addr.hlen); - struct lease *scan; - - /* If it's not in the hash, just add it. */ - if (!head) - add_hash (lease_hw_addr_hash, - lease -> hardware_addr.haddr, - lease -> hardware_addr.hlen, - (unsigned char *)lease); - else { - /* Otherwise, attach it to the end of the list. */ - for (scan = head; scan -> n_hw; scan = scan -> n_hw) - ; - scan -> n_hw = lease; - } -} - -/* Delete the specified lease from the hardware address hash. */ - -void hw_hash_delete (lease) - struct lease *lease; -{ - struct lease *head = - find_lease_by_hw_addr (lease -> hardware_addr.haddr, - lease -> hardware_addr.hlen); - struct lease *scan; - - /* If it's not in the hash, we have no work to do. */ - if (!head) { - lease -> n_hw = (struct lease *)0; - return; - } - - /* If the lease we're freeing is at the head of the list, - remove the hash table entry and add a new one with the - next lease on the list (if there is one). */ - if (head == lease) { - delete_hash_entry (lease_hw_addr_hash, - lease -> hardware_addr.haddr, - lease -> hardware_addr.hlen); - if (lease -> n_hw) - add_hash (lease_hw_addr_hash, - lease -> n_hw -> hardware_addr.haddr, - lease -> n_hw -> hardware_addr.hlen, - (unsigned char *)(lease -> n_hw)); - } else { - /* Otherwise, look for the lease in the list of leases - attached to the hash table entry, and remove it if - we find it. */ - for (scan = head; scan -> n_hw; scan = scan -> n_hw) { - if (scan -> n_hw == lease) { - scan -> n_hw = scan -> n_hw -> n_hw; - break; - } - } - } - lease -> n_hw = (struct lease *)0; -} - - -struct class *add_class (type, name) - int type; - char *name; -{ - struct class *class = new_class ("add_class"); - char *tname = (char *)malloc (strlen (name) + 1); - - if (!vendor_class_hash) - vendor_class_hash = new_hash (); - if (!user_class_hash) - user_class_hash = new_hash (); - - if (!tname || !class || !vendor_class_hash || !user_class_hash) - return (struct class *)0; - - memset (class, 0, sizeof *class); - strcpy (tname, name); - class -> name = tname; - - if (type) - add_hash (user_class_hash, - tname, strlen (tname), (unsigned char *)class); - else - add_hash (user_class_hash, - tname, strlen (tname), (unsigned char *)class); - return class; -} - -struct class *find_class (type, name, len) - int type; - char *name; - int len; -{ - struct class *class = - (struct class *)hash_lookup (type - ? user_class_hash - : vendor_class_hash, name, len); - return class; -} - -struct group *clone_group (group, caller) - struct group *group; - char *caller; -{ - struct group *g = new_group (caller); - if (!g) - error ("%s: can't allocate new group", caller); - *g = *group; - return g; -} - -/* Write all interesting leases to permanent storage. */ - -void write_leases () -{ - struct lease *l; - struct shared_network *s; - - for (s = shared_networks; s; s = s -> next) { - for (l = s -> leases; l; l = l -> next) { - if (l -> hardware_addr.hlen || l -> uid_len) - if (!write_lease (l)) - error ("Can't rewrite lease database"); - } - } - if (!commit_leases ()) - error ("Can't commit leases to new database: %m"); -} - -void dump_subnets () -{ - struct lease *l; - struct shared_network *s; - struct subnet *n; - - for (s = shared_networks; s; s = s -> next) { - for (n = subnets; n; n = n -> next_sibling) { - debug ("Subnet %s", piaddr (n -> net)); - debug (" netmask %s", - piaddr (n -> netmask)); - } - for (l = s -> leases; l; l = l -> next) { - print_lease (l); - } - debug ("Last Lease:"); - print_lease (s -> last_lease); - } -} diff --git a/common/nit.c b/common/nit.c deleted file mode 100644 index 43fa7e49..00000000 --- a/common/nit.c +++ /dev/null @@ -1,331 +0,0 @@ -/* nit.c - - Network Interface Tap (NIT) network interface code, by Ted Lemon - with one crucial tidbit of help from Stu Grossmen. */ - -/* - * Copyright (c) 1996 The Internet Software Consortium. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names - * of its contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This software has been written for the Internet Software Consortium - * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie - * Enterprises. To learn more about the Internet Software Consortium, - * see ``http://www.vix.com/isc''. To learn more about Vixie - * Enterprises, see ``http://www.vix.com''. */ - -#ifndef lint -static char copyright[] = -"$Id: nit.c,v 1.9 1996/09/05 23:56:52 mellon Exp $ Copyright (c) 1996 The Internet Software Consortium. All rights reserved.\n"; -#endif /* not lint */ - -#include "dhcpd.h" -#if defined (USE_NIT_SEND) || defined (USE_NIT_RECEIVE) -#include <sys/ioctl.h> -#include <sys/uio.h> - -#include <sys/time.h> -#include <net/nit.h> -#include <net/nit_if.h> -#include <net/nit_pf.h> -#include <net/nit_buf.h> -#include <sys/stropts.h> -#include <net/packetfilt.h> - -#include <netinet/in_systm.h> -#include "includes/netinet/ip.h" -#include "includes/netinet/udp.h" -#include "includes/netinet/if_ether.h" - -/* Called by get_interface_list for each interface that's discovered. - Opens a packet filter for each interface and adds it to the select - mask. */ - -int if_register_nit (info, ifp) - struct interface_info *info; - struct ifreq *ifp; -{ - int sock; - char filename[50]; - struct ifreq ifr; - struct strioctl sio; - - /* Open a NIT device */ - sock = open ("/dev/nit", O_RDWR); - if (sock < 0) - error ("Can't open NIT device for %s: %m", info -> name); - - /* Set the NIT device to point at this interface. */ - sio.ic_cmd = NIOCBIND; - sio.ic_len = sizeof *ifp; - sio.ic_dp = (char *)ifp; - sio.ic_timout = INFTIM; - if (ioctl (sock, I_STR, &sio) < 0) - error ("Can't attach interface %s to nit device: %m", - info -> name); - - /* Get the low-level address... */ - sio.ic_cmd = SIOCGIFADDR; - sio.ic_len = sizeof ifr; - sio.ic_dp = (char *)𝔦 - sio.ic_timout = INFTIM; - if (ioctl (sock, I_STR, &sio) < 0) - error ("Can't get physical layer address for %s: %m", - info -> name); - - /* XXX code below assumes ethernet interface! */ - info -> hw_address.hlen = 6; - info -> hw_address.htype = ARPHRD_ETHER; - memcpy (info -> hw_address.haddr, ifr.ifr_ifru.ifru_addr.sa_data, 6); - - if (ioctl (sock, I_PUSH, "pf") < 0) - error ("Can't push packet filter onto NIT for %s: %m", - info -> name); - - return sock; -} -#endif /* USE_NIT_SEND || USE_NIT_RECEIVE */ - -#ifdef USE_NIT_SEND -void if_register_send (info, interface) - struct interface_info *info; - struct ifreq *interface; -{ - /* If we're using the nit API for sending and receiving, - we don't need to register this interface twice. */ -#ifndef USE_NIT_RECEIVE - struct packetfilt pf; - struct strioctl sio; - - info -> wfdesc = if_register_nit (info, interface); - - pf.Pf_Priority = 0; - pf.Pf_FilterLen = 1; - pf.Pf_Filter [0] = ENF_PUSHZERO; - - /* Set up an NIT filter that rejects everything... */ - sio.ic_cmd = NIOCSETF; - sio.ic_len = sizeof pf; - sio.ic_dp = (char *)&pf; - sio.ic_timout = INFTIM; - if (ioctl (info -> wfdesc, I_STR, &sio) < 0) - error ("Can't set NIT filter: %m"); -#else - info -> wfdesc = info -> rfdesc; -#endif - note ("Sending on NIT/%s/%s", - print_hw_addr (info -> hw_address.htype, - info -> hw_address.hlen, - info -> hw_address.haddr), - (info -> shared_network ? - info -> shared_network -> name : "unattached")); -} -#endif /* USE_NIT_SEND */ - -#ifdef USE_NIT_RECEIVE -/* Packet filter program... - XXX Changes to the filter program may require changes to the constant - offsets used in if_register_send to patch the NIT program! XXX */ - -void if_register_receive (info, interface) - struct interface_info *info; - struct ifreq *interface; -{ - int flag = 1; - u_int32_t x; - struct packetfilt pf; - struct strioctl sio; - u_int16_t addr [2]; - struct timeval t; - - /* Open a NIT device and hang it on this interface... */ - info -> rfdesc = if_register_nit (info, interface); - - /* Set the snap length to 0, which means always take the whole - packet. */ - x = 0; - if (ioctl (info -> rfdesc, NIOCSSNAP, &x) < 0) - error ("Can't set NIT snap length on %s: %m", info -> name); - - /* Set the stream to byte stream mode */ - if (ioctl (info -> rfdesc, I_SRDOPT, RMSGN) != 0) - note ("I_SRDOPT failed on %s: %m", info -> name); - -#if 0 - /* Push on the chunker... */ - if (ioctl (info -> rfdesc, I_PUSH, "nbuf") < 0) - error ("Can't push chunker onto NIT STREAM: %m"); - - /* Set the timeout to zero. */ - t.tv_sec = 0; - t.tv_usec = 0; - if (ioctl (info -> rfdesc, NIOCSTIME, &t) < 0) - error ("Can't set chunk timeout: %m"); -#endif - - /* Ask for no header... */ - x = 0; - if (ioctl (info -> rfdesc, NIOCSFLAGS, &x) < 0) - error ("Can't set NIT flags on %s: %m", info -> name); - - /* Set up the NIT filter program. */ - /* XXX Unlike the BPF filter program, this one won't work if the - XXX IP packet is fragmented or if there are options on the IP - XXX header. */ - pf.Pf_Priority = 0; - pf.Pf_FilterLen = 0; - - pf.Pf_Filter [pf.Pf_FilterLen++] = ENF_PUSHWORD + 6; - pf.Pf_Filter [pf.Pf_FilterLen++] = ENF_PUSHLIT + ENF_CAND; - pf.Pf_Filter [pf.Pf_FilterLen++] = htons (ETHERTYPE_IP); - pf.Pf_Filter [pf.Pf_FilterLen++] = ENF_PUSHLIT; - pf.Pf_Filter [pf.Pf_FilterLen++] = htons (IPPROTO_UDP); - pf.Pf_Filter [pf.Pf_FilterLen++] = ENF_PUSHWORD + 11; - pf.Pf_Filter [pf.Pf_FilterLen++] = ENF_PUSHLIT + ENF_AND; - pf.Pf_Filter [pf.Pf_FilterLen++] = htons (0xFF); - pf.Pf_Filter [pf.Pf_FilterLen++] = ENF_CAND; - pf.Pf_Filter [pf.Pf_FilterLen++] = ENF_PUSHWORD + 18; - pf.Pf_Filter [pf.Pf_FilterLen++] = ENF_PUSHLIT + ENF_CAND; - pf.Pf_Filter [pf.Pf_FilterLen++] = server_port; - - /* Install the filter... */ - sio.ic_cmd = NIOCSETF; - sio.ic_len = sizeof pf; - sio.ic_dp = (char *)&pf; - sio.ic_timout = INFTIM; - if (ioctl (info -> rfdesc, I_STR, &sio) < 0) - error ("Can't set NIT filter on %s: %m", info -> name); - - note ("Listening on NIT/%s/%s", - print_hw_addr (info -> hw_address.htype, - info -> hw_address.hlen, - info -> hw_address.haddr), - (info -> shared_network ? - info -> shared_network -> name : "unattached")); -} -#endif /* USE_NIT_RECEIVE */ - -#ifdef USE_NIT_SEND -size_t send_packet (interface, packet, raw, len, from, to, hto) - struct interface_info *interface; - struct packet *packet; - struct dhcp_packet *raw; - size_t len; - struct in_addr from; - struct sockaddr_in *to; - struct hardware *hto; -{ - int bufp; - unsigned char buf [1536 + sizeof (struct sockaddr)]; - struct sockaddr *junk; - struct strbuf ctl, data; - int hw_end; - struct sockaddr_in foo; - - /* Start with the sockaddr struct... */ - junk = (struct sockaddr *)&buf [0]; - bufp = ((unsigned char *)&junk -> sa_data [0]) - &buf [0]; - - /* Assemble the headers... */ - assemble_hw_header (interface, buf, &bufp, hto); - hw_end = bufp; - assemble_udp_ip_header (interface, buf, &bufp, from.s_addr, - to -> sin_addr.s_addr, to -> sin_port, - raw, len); - - /* Copy the data into the buffer (yuk). */ - memcpy (buf + bufp, raw, len); - - /* Set up the sockaddr structure... */ -#if USE_SIN_LEN - junk -> sa_len = hw_end - 2; /* XXX */ -#endif - junk -> sa_family = AF_UNSPEC; - -#if 0 /* Already done. */ - memcpy (junk.sa_data, buf, hw_len); -#endif - - /* Set up the msg_buf structure... */ - ctl.buf = (char *)&buf [0]; - ctl.maxlen = ctl.len = hw_end; - data.buf = (char *)&buf [hw_end]; - data.maxlen = data.len = bufp + len - hw_end; - - return putmsg (interface -> wfdesc, &ctl, &data, 0); -} -#endif /* USE_NIT_SEND */ - -#ifdef USE_NIT_RECEIVE -size_t receive_packet (interface, buf, len, from, hfrom) - struct interface_info *interface; - unsigned char *buf; - size_t len; - struct sockaddr_in *from; - struct hardware *hfrom; -{ - int nread; - int length = 0; - int offset = 0; - unsigned char ibuf [1536]; - int bufix = 0; - - length = read (interface -> rfdesc, ibuf, sizeof ibuf); - if (length <= 0) - return length; - - /* Decode the physical header... */ - offset = decode_hw_header (interface, ibuf, bufix, hfrom); - - /* If a physical layer checksum failed (dunno of any - physical layer that supports this, but WTH), skip this - packet. */ - if (offset < 0) { - return 0; - } - - bufix += offset; - length -= offset; - - /* Decode the IP and UDP headers... */ - offset = decode_udp_ip_header (interface, ibuf, bufix, - from, (unsigned char *)0, length); - - /* If the IP or UDP checksum was bad, skip the packet... */ - if (offset < 0) - return 0; - - bufix += offset; - length -= offset; - - /* Copy out the data in the packet... */ - memcpy (buf, &ibuf [bufix], length); - return length; -} -#endif diff --git a/common/options.c b/common/options.c deleted file mode 100644 index 53dd0224..00000000 --- a/common/options.c +++ /dev/null @@ -1,536 +0,0 @@ -/* options.c - - DHCP options parsing and reassembly. */ - -/* - * Copyright (c) 1995, 1996 The Internet Software Consortium. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names - * of its contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This software has been written for the Internet Software Consortium - * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie - * Enterprises. To learn more about the Internet Software Consortium, - * see ``http://www.vix.com/isc''. To learn more about Vixie - * Enterprises, see ``http://www.vix.com''. - */ - -#ifndef lint -static char copyright[] = -"$Id: options.c,v 1.19 1996/09/11 05:52:18 mellon Exp $ Copyright (c) 1995, 1996 The Internet Software Consortium. All rights reserved.\n"; -#endif /* not lint */ - -#define DHCP_OPTION_DATA -#include "dhcpd.h" - -/* Parse all available options out of the specified packet. */ - -void parse_options (packet) - struct packet *packet; -{ - /* Initially, zero all option pointers. */ - memset (packet -> options, 0, sizeof (packet -> options)); - - /* If we don't see the magic cookie, there's nothing to parse. */ - if (memcmp (packet -> raw -> options, DHCP_OPTIONS_COOKIE, 4)) { - packet -> options_valid = 0; - return; - } - - /* Go through the options field, up to the end of the packet - or the End field. */ - parse_option_buffer (packet, &packet -> raw -> options [4], - packet -> packet_length - DHCP_FIXED_NON_UDP - 4); - /* If we parsed a DHCP Option Overload option, parse more - options out of the buffer(s) containing them. */ - if (packet -> options_valid - && packet -> options [DHO_DHCP_OPTION_OVERLOAD].data) { - if (packet -> options [DHO_DHCP_OPTION_OVERLOAD].data [0] & 1) - parse_option_buffer (packet, - packet -> raw -> file, - sizeof packet -> raw -> file); - if (packet -> options [DHO_DHCP_OPTION_OVERLOAD].data [0] & 2) - parse_option_buffer (packet, - packet -> raw -> sname, - sizeof packet -> raw -> sname); - } -} - -/* Parse options out of the specified buffer, storing addresses of option - values in packet -> options and setting packet -> options_valid if no - errors are encountered. */ - -void parse_option_buffer (packet, buffer, length) - struct packet *packet; - unsigned char *buffer; - int length; -{ - unsigned char *s, *t; - unsigned char *end = buffer + length; - int len; - int code; - - for (s = buffer; *s != DHO_END && s < end; ) { - code = s [0]; - /* Pad options don't have a length - just skip them. */ - if (code == DHO_PAD) { - ++s; - continue; - } - /* All other fields (except end, see above) have a - one-byte length. */ - len = s [1]; - - /* If the length is outrageous, the options are bad. */ - if (s + len + 2 > end) { - warn ("Option %s length %d overflows input buffer.", - dhcp_options [code].name, - len); - packet -> options_valid = 0; - return; - } - /* If we haven't seen this option before, just make - space for it and copy it there. */ - if (!packet -> options [code].data) { - if (!(t = (unsigned char *)malloc (len + 1))) - error ("Can't allocate storage for option %s.", - dhcp_options [code].name); - /* Copy and NUL-terminate the option (in case it's an - ASCII string. */ - memcpy (t, &s [2], len); - t [len] = 0; - packet -> options [code].len = len; - packet -> options [code].data = t; - } else { - /* If it's a repeat, concatenate it to whatever - we last saw. This is really only required - for clients, but what the heck... */ - t = (unsigned char *) - malloc (len - + packet -> options [code].len - + 1); - if (!t) - error ("Can't expand storage for option %s.", - dhcp_options [code].name); - memcpy (t, packet -> options [code].data, - packet -> options [code].len); - memcpy (t + packet -> options [code].len, - &s [2], len); - packet -> options [code].len += len; - t [packet -> options [code].len] = 0; - free (packet -> options [code].data); - packet -> options [code].data = t; - } - s += len + 2; - } - packet -> options_valid = 1; -} - -/* cons options into a big buffer, and then split them out into the - three seperate buffers if needed. This allows us to cons up a set - of vendor options using the same routine. */ - -void cons_options (inpacket, outpacket, options, overload, terminate) - struct packet *inpacket; - struct packet *outpacket; - struct tree_cache **options; - int overload; /* Overload flags that may be set. */ - int terminate; -{ - unsigned char priority_list [300]; - int priority_len; - unsigned char buffer [4096]; /* Really big buffer... */ - int main_buffer_size; - int mainbufix, bufix; - int option_size; - - /* If the client has provided a maximum DHCP message size, - use that. Otherwise, we use the default MTU size (576 bytes). */ - /* XXX Maybe it would be safe to assume that we can send a packet - to the client that's as big as the one it sent us, even if it - didn't specify a large MTU. */ - if (inpacket && inpacket -> options [DHO_DHCP_MAX_MESSAGE_SIZE].data) { - main_buffer_size = - (getUShort (inpacket -> options - [DHO_DHCP_MAX_MESSAGE_SIZE].data) - - DHCP_FIXED_LEN); - /* Enforce a minimum packet size... */ - if (main_buffer_size < (576 - DHCP_FIXED_LEN)) - main_buffer_size = 576 - DHCP_FIXED_LEN; - } else - main_buffer_size = 576 - DHCP_FIXED_LEN; - - /* Preload the option priority list with mandatory options. */ - priority_len = 0; - priority_list [priority_len++] = DHO_DHCP_MESSAGE_TYPE; - priority_list [priority_len++] = DHO_DHCP_SERVER_IDENTIFIER; - priority_list [priority_len++] = DHO_DHCP_LEASE_TIME; - priority_list [priority_len++] = DHO_DHCP_MESSAGE; - - /* If the client has provided a list of options that it wishes - returned, use it to prioritize. Otherwise, prioritize - based on the default priority list. */ - - if (inpacket && - inpacket -> options [DHO_DHCP_PARAMETER_REQUEST_LIST].data) { - memcpy (&priority_list [priority_len], - inpacket -> options - [DHO_DHCP_PARAMETER_REQUEST_LIST].data, - inpacket -> options - [DHO_DHCP_PARAMETER_REQUEST_LIST].len); - priority_len += - inpacket -> options - [DHO_DHCP_PARAMETER_REQUEST_LIST].len; - } else { - memcpy (&priority_list [priority_len], - dhcp_option_default_priority_list, - sizeof_dhcp_option_default_priority_list); - priority_len += sizeof_dhcp_option_default_priority_list; - } - - /* Copy the options into the big buffer... */ - option_size = store_options (buffer, - (main_buffer_size - 7 + - ((overload & 1) ? DHCP_FILE_LEN : 0) + - ((overload & 2) ? DHCP_SNAME_LEN : 0)), - options, priority_list, priority_len, - main_buffer_size, - (main_buffer_size + - ((overload & 1) ? DHCP_FILE_LEN : 0)), - terminate); - - /* Put the cookie up front... */ - memcpy (outpacket -> raw -> options, DHCP_OPTIONS_COOKIE, 4); - mainbufix = 4; - - /* If we're going to have to overload, store the overload - option at the beginning. If we can, though, just store the - whole thing in the packet's option buffer and leave it at - that. */ - if (option_size <= main_buffer_size - mainbufix) { - memcpy (&outpacket -> raw -> options [mainbufix], - buffer, option_size); - mainbufix += option_size; - if (mainbufix < main_buffer_size) - outpacket -> raw -> options [mainbufix++] - = DHO_END; - outpacket -> packet_length = DHCP_FIXED_NON_UDP + mainbufix; - } else { - outpacket -> raw -> options [mainbufix++] = - DHO_DHCP_OPTION_OVERLOAD; - outpacket -> raw -> options [mainbufix++] = 1; - if (option_size > main_buffer_size - mainbufix + DHCP_FILE_LEN) - outpacket -> raw -> options [mainbufix++] = 3; - else - outpacket -> raw -> options [mainbufix++] = 1; - - memcpy (&outpacket -> raw -> options [mainbufix], - buffer, main_buffer_size - mainbufix); - bufix = main_buffer_size - mainbufix; - outpacket -> packet_length = DHCP_FIXED_NON_UDP + mainbufix; - if (overload & 1) { - if (option_size - bufix <= DHCP_FILE_LEN) { - memcpy (outpacket -> raw -> file, - &buffer [bufix], option_size - bufix); - mainbufix = option_size - bufix; - if (mainbufix < DHCP_FILE_LEN) - outpacket -> raw -> file [mainbufix++] - = DHO_END; - while (mainbufix < DHCP_FILE_LEN) - outpacket -> raw -> file [mainbufix++] - = DHO_PAD; - } else { - memcpy (outpacket -> raw -> file, - &buffer [bufix], DHCP_FILE_LEN); - bufix += DHCP_FILE_LEN; - } - } - if ((overload & 2) && option_size < bufix) { - memcpy (outpacket -> raw -> sname, - &buffer [bufix], option_size - bufix); - - mainbufix = option_size - bufix; - if (mainbufix < DHCP_SNAME_LEN) - outpacket -> raw -> file [mainbufix++] - = DHO_END; - while (mainbufix < DHCP_SNAME_LEN) - outpacket -> raw -> file [mainbufix++] - = DHO_PAD; - } - } - return; -} - -/* Store all the requested options into the requested buffer. */ - -int store_options (buffer, buflen, options, priority_list, priority_len, - first_cutoff, second_cutoff, terminate) - unsigned char *buffer; - int buflen; - struct tree_cache **options; - unsigned char *priority_list; - int priority_len; - int first_cutoff, second_cutoff; - int terminate; -{ - int bufix = 0; - int option_stored [256]; - int i; - int ix; - int tto; - - /* Zero out the stored-lengths array. */ - memset (option_stored, 0, sizeof option_stored); - - /* Copy out the options in the order that they appear in the - priority list... */ - for (i = 0; i < priority_len; i++) { - /* Code for next option to try to store. */ - int code = priority_list [i]; - int optstart; - - /* Number of bytes left to store (some may already - have been stored by a previous pass). */ - int length; - - /* If no data is available for this option, skip it. */ - if (!options [code]) { - continue; - } - - /* The client could ask for things that are mandatory, - in which case we should avoid storing them twice... */ - if (option_stored [code]) - continue; - option_stored [code] = 1; - - /* Find the value of the option... */ - if (!tree_evaluate (options [code])) { - continue; - } - - /* We should now have a constant length for the option. */ - length = options [code] -> len; - - /* Do we add a NUL? */ - if (terminate && dhcp_options [code].format [0] == 't') { - length++; - tto = 1; - } else { - tto = 0; - } - - /* Try to store the option. */ - - /* If the option's length is more than 255, we must store it - in multiple hunks. Store 255-byte hunks first. However, - in any case, if the option data will cross a buffer - boundary, split it across that boundary. */ - - ix = 0; - - optstart = bufix; - while (length) { - unsigned char incr = length > 255 ? 255 : length; - - /* If this hunk of the buffer will cross a - boundary, only go up to the boundary in this - pass. */ - if (bufix < first_cutoff && - bufix + incr > first_cutoff) - incr = first_cutoff - bufix; - else if (bufix < second_cutoff && - bufix + incr > second_cutoff) - incr = second_cutoff - bufix; - - /* If this option is going to overflow the buffer, - skip it. */ - if (bufix + 2 + incr > buflen) { - bufix = optstart; - break; - } - - /* Everything looks good - copy it in! */ - buffer [bufix] = code; - buffer [bufix + 1] = incr; - if (tto && incr == length) { - memcpy (buffer + bufix + 2, - options [code] -> value + ix, - incr - 1); - buffer [bufix + 2 + incr - 1] = 0; - } else { - memcpy (buffer + bufix + 2, - options [code] -> value + ix, incr); - } - length -= incr; - ix += incr; - bufix += 2 + incr; - } - } - return bufix; -} - -/* Format the specified option so that a human can easily read it. */ - -char *pretty_print_option (code, data, len) - unsigned char code; - unsigned char *data; - int len; -{ - static char optbuf [32768]; /* XXX */ - int hunksize = 0; - int numhunk = -1; - int numelem = 0; - char fmtbuf [32]; - int i, j; - char *op = optbuf; - unsigned char *dp = data; - struct in_addr foo; - - /* Figure out the size of the data. */ - for (i = 0; dhcp_options [code].format [i]; i++) { - if (!numhunk) { - warn ("%s: Excess information in format string: %s\n", - dhcp_options [code].name, - &(dhcp_options [code].format [i])); - break; - } - numelem++; - fmtbuf [i] = dhcp_options [code].format [i]; - switch (dhcp_options [code].format [i]) { - case 'A': - --numelem; - fmtbuf [i] = 0; - numhunk = 0; - break; - case 't': - fmtbuf [i] = 't'; - fmtbuf [i + 1] = 0; - numhunk = -2; - break; - case 'I': - case 'l': - case 'L': - hunksize += 4; - break; - case 's': - case 'S': - hunksize += 2; - break; - case 'b': - case 'B': - case 'f': - hunksize++; - break; - case 'e': - break; - default: - warn ("%s: garbage in format string: %s\n", - dhcp_options [code].name, - &(dhcp_options [code].format [i])); - break; - } - } - - /* Check for too few bytes... */ - if (hunksize > len) { - warn ("%s: expecting at least %d bytes; got %d", - dhcp_options [code].name, - hunksize, len); - return "<error>"; - } - /* Check for too many bytes... */ - if (numhunk == -1 && hunksize < len) - warn ("%s: %d extra bytes", - dhcp_options [code].name, - len - hunksize); - - /* If this is an array, compute its size. */ - if (!numhunk) - numhunk = len / hunksize; - /* See if we got an exact number of hunks. */ - if (numhunk > 0 && numhunk * hunksize < len) - warn ("%s: %d extra bytes at end of array\n", - dhcp_options [code].name, - len - numhunk * hunksize); - - /* A one-hunk array prints the same as a single hunk. */ - if (numhunk < 0) - numhunk = 1; - - /* Cycle through the array (or hunk) printing the data. */ - for (i = 0; i < numhunk; i++) { - for (j = 0; j < numelem; j++) { - switch (fmtbuf [j]) { - case 't': - strcpy (op, dp); - break; - case 'I': - foo.s_addr = htonl (getULong (dp)); - strcpy (op, inet_ntoa (foo)); - dp += 4; - break; - case 'l': - sprintf (op, "%ld", (long)getLong (dp)); - dp += 4; - break; - case 'L': - sprintf (op, "%ld", - (unsigned long)getULong (dp)); - dp += 4; - break; - case 's': - sprintf (op, "%d", getShort (dp)); - dp += 2; - break; - case 'S': - sprintf (op, "%d", getUShort (dp)); - dp += 2; - break; - case 'b': - sprintf (op, "%d", *(char *)dp++); - break; - case 'B': - sprintf (op, "%d", *dp++); - break; - case 'f': - strcpy (op, *dp++ ? "true" : "false"); - break; - default: - warn ("Unexpected format code %c", fmtbuf [j]); - } - op += strlen (op); - *op++ = ' '; - } - } - *--op = 0; - return optbuf; -} - - - diff --git a/common/packet.c b/common/packet.c deleted file mode 100644 index 2d6238b4..00000000 --- a/common/packet.c +++ /dev/null @@ -1,314 +0,0 @@ -/* packet.c - - Packet assembly code, originally contributed by Archie Cobbs. */ - -/* - * Copyright (c) 1995, 1996 The Internet Software Consortium. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names - * of its contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This software has been written for the Internet Software Consortium - * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie - * Enterprises. To learn more about the Internet Software Consortium, - * see ``http://www.vix.com/isc''. To learn more about Vixie - * Enterprises, see ``http://www.vix.com''. - */ - -#ifndef lint -static char copyright[] = -"$Id: packet.c,v 1.11 1996/08/27 09:53:14 mellon Exp $ Copyright (c) 1996 The Internet Software Consortium. All rights reserved.\n"; -#endif /* not lint */ - -#include "dhcpd.h" -#if defined (PACKET_ASSEMBLY) || defined (PACKET_DECODING) -#include <netinet/in_systm.h> -#include "includes/netinet/ip.h" -#include "includes/netinet/udp.h" -#include "includes/netinet/if_ether.h" - -static u_int32_t checksum PROTO ((unsigned char *, int, u_int32_t)); -static u_int32_t wrapsum PROTO ((u_int32_t)); - -/* Compute the easy part of the checksum on a range of bytes. */ - -static u_int32_t checksum (buf, nbytes, sum) - unsigned char *buf; - int nbytes; - u_int32_t sum; -{ - int i; - -#ifdef DEBUG_CHECKSUM - debug ("checksum (%x %d %x)", buf, nbytes, sum); -#endif - - /* Checksum all the pairs of bytes first... */ - for (i = 0; i < (nbytes & ~1); i += 2) { -#ifdef DEBUG_CHECKSUM_VERBOSE - debug ("sum = %x", sum); -#endif - sum += (u_int16_t) ntohs(*((u_int16_t *)buf)++); - } - - /* If there's a single byte left over, checksum it, too. Network - byte order is big-endian, so the remaining byte is the high byte. */ - if (i < nbytes) { -#ifdef DEBUG_CHECKSUM_VERBOSE - debug ("sum = %x", sum); -#endif - sum += (*buf) << 8; - } - - return sum; -} - -/* Fold the upper sixteen bits of the checksum down into the lower bits, - complement the sum, and then put it into network byte order. */ - -static u_int32_t wrapsum (sum) - u_int32_t sum; -{ -#ifdef DEBUG_CHECKSUM - debug ("wrapsum (%x)", sum); -#endif - - while (sum > 0x10000) { - sum = (sum >> 16) + (sum & 0xFFFF); -#ifdef DEBUG_CHECKSUM_VERBOSE - debug ("sum = %x", sum); -#endif - sum += (sum >> 16); -#ifdef DEBUG_CHECKSUM_VERBOSE - debug ("sum = %x", sum); -#endif - } - sum = sum ^ 0xFFFF; -#ifdef DEBUG_CHECKSUM_VERBOSE - debug ("sum = %x", sum); -#endif - -#ifdef DEBUG_CHECKSUM - debug ("wrapsum returns %x", htons (sum)); -#endif - return htons(sum); -} -#endif /* PACKET_ASSEMBLY || PACKET_DECODING */ - -#ifdef PACKET_ASSEMBLY -/* Assemble an hardware header... */ -/* XXX currently only supports ethernet; doesn't check for other types. */ - -void assemble_hw_header (interface, buf, bufix, to) - struct interface_info *interface; - unsigned char *buf; - int *bufix; - struct hardware *to; -{ - struct ether_header eh; - - if (to && to -> hlen == 6) /* XXX */ - memcpy (eh.ether_dhost, to -> haddr, sizeof eh.ether_dhost); - else - memset (eh.ether_dhost, 0xff, sizeof (eh.ether_dhost)); - if (interface -> hw_address.hlen == sizeof (eh.ether_shost)) - memcpy (eh.ether_shost, interface -> hw_address.haddr, - sizeof (eh.ether_shost)); - else - memset (eh.ether_shost, 0x00, sizeof (eh.ether_shost)); - -#ifdef BROKEN_FREEBSD_BPF /* Fixed in FreeBSD 2.2 */ - eh.ether_type = ETHERTYPE_IP; -#else - eh.ether_type = htons (ETHERTYPE_IP); -#endif - - memcpy (&buf [*bufix], &eh, sizeof eh); - *bufix += sizeof eh; -} - -/* UDP header and IP header assembled together for convenience. */ - -void assemble_udp_ip_header (interface, buf, bufix, - from, to, port, data, len) - struct interface_info *interface; - unsigned char *buf; - int *bufix; - u_int32_t from; - u_int32_t to; - u_int16_t port; - unsigned char *data; - int len; -{ - struct ip ip; - struct udphdr udp; - - /* Fill out the IP header */ - ip.ip_v = 4; - ip.ip_hl = 5; - ip.ip_tos = IPTOS_LOWDELAY; - ip.ip_len = htons(sizeof(ip) + sizeof(udp) + len); - ip.ip_id = 0; - ip.ip_off = 0; - ip.ip_ttl = 16; - ip.ip_p = IPPROTO_UDP; - ip.ip_sum = 0; - ip.ip_src.s_addr = from; - ip.ip_dst.s_addr = to; - - /* Checksum the IP header... */ - ip.ip_sum = wrapsum (checksum ((unsigned char *)&ip, sizeof ip, 0)); - - /* Copy the ip header into the buffer... */ - memcpy (&buf [*bufix], &ip, sizeof ip); - *bufix += sizeof ip; - - /* Fill out the UDP header */ - udp.uh_sport = server_port; /* XXX */ - udp.uh_dport = port; /* XXX */ - udp.uh_ulen = htons(sizeof(udp) + len); - memset (&udp.uh_sum, 0, sizeof udp.uh_sum); - - /* Compute UDP checksums, including the ``pseudo-header'', the UDP - header and the data. */ - -#if 0 - udp.uh_sum = - wrapsum (checksum ((unsigned char *)&udp, sizeof udp, - checksum (data, len, - checksum ((unsigned char *) - &ip.ip_src, - sizeof ip.ip_src, - IPPROTO_UDP + - (u_int32_t) - ntohs (udp.uh_ulen))))); -#endif - - /* Copy the udp header into the buffer... */ - memcpy (&buf [*bufix], &udp, sizeof udp); - *bufix += sizeof udp; -} -#endif /* PACKET_ASSEMBLY */ - -#ifdef PACKET_DECODING -/* Decode a hardware header... */ -/* XXX currently only supports ethernet; doesn't check for other types. */ - -size_t decode_hw_header (interface, buf, bufix, from) - struct interface_info *interface; - unsigned char *buf; - int bufix; - struct hardware *from; -{ - struct ether_header eh; - - memcpy (&eh, buf + bufix, sizeof eh); - -#ifdef USERLAND_FILTER - if (ntohs (eh.ether_type) != ETHERTYPE_IP) - return -1; -#endif - memcpy (from -> haddr, eh.ether_shost, sizeof (eh.ether_shost)); - from -> htype = ARPHRD_ETHER; - from -> hlen = sizeof eh.ether_shost; - - return sizeof eh; -} - -/* UDP header and IP header decoded together for convenience. */ - -size_t decode_udp_ip_header (interface, buf, bufix, from, data, len) - struct interface_info *interface; - unsigned char *buf; - int bufix; - struct sockaddr_in *from; - unsigned char *data; - int len; -{ - struct ip *ip; - struct udphdr *udp; - u_int32_t ip_len = (buf [bufix] & 0xf) << 2; - u_int32_t sum, usum; - - ip = (struct ip *)(buf + bufix); - udp = (struct udphdr *)(buf + bufix + ip_len); - -#ifdef USERLAND_FILTER - /* Is it a UDP packet? */ - if (ip -> ip_p != IPPROTO_UDP) - return -1; - - /* Is it to the port we're serving? */ - if (udp -> uh_dport != server_port) - return -1; -#endif /* USERLAND_FILTER */ - - /* Check the IP header checksum - it should be zero. */ - if (wrapsum (checksum (buf + bufix, ip_len, 0))) { - note ("Bad IP checksum: %x", - wrapsum (checksum (buf + bufix, sizeof *ip, 0))); - return -1; - } - - /* Copy out the IP source address... */ - memcpy (&from -> sin_addr, &ip -> ip_src, 4); - - /* Compute UDP checksums, including the ``pseudo-header'', the UDP - header and the data. If the UDP checksum field is zero, we're - not supposed to do a checksum. */ - - if (!data) { - data = buf + bufix + ip_len + sizeof *udp; - len -= ip_len + sizeof *udp; - } - -#if 0 - usum = udp -> uh_sum; - udp -> uh_sum = 0; - - sum = wrapsum (checksum ((unsigned char *)udp, sizeof *udp, - checksum (data, len, - checksum ((unsigned char *) - &ip -> ip_src, - sizeof ip -> ip_src, - IPPROTO_UDP + - (u_int32_t) - ntohs (udp -> uh_ulen))))); - - if (usum && usum != sum) { - note ("Bad udp checksum: %x %x", usum, sum); - return -1; - } -#endif - - /* Copy out the port... */ - memcpy (&from -> sin_port, &udp -> uh_sport, sizeof udp -> uh_sport); - - return ip_len + sizeof *udp; -} -#endif /* PACKET_DECODING */ diff --git a/common/print.c b/common/print.c deleted file mode 100644 index 90b5532a..00000000 --- a/common/print.c +++ /dev/null @@ -1,186 +0,0 @@ -/* print.c - - Turn data structures into printable text. */ - -/* - * Copyright (c) 1995, 1996 The Internet Software Consortium. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names - * of its contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This software has been written for the Internet Software Consortium - * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie - * Enterprises. To learn more about the Internet Software Consortium, - * see ``http://www.vix.com/isc''. To learn more about Vixie - * Enterprises, see ``http://www.vix.com''. - */ - -#ifndef lint -static char copyright[] = -"$Id: print.c,v 1.11 1996/08/27 09:53:30 mellon Exp $ Copyright (c) 1995, 1996 The Internet Software Consortium. All rights reserved.\n"; -#endif /* not lint */ - -#include "dhcpd.h" - -char *print_hw_addr (htype, hlen, data) - int htype; - int hlen; - unsigned char *data; -{ - static char habuf [49]; - char *s; - int i; - - if (htype == 0 || hlen == 0) { - strcpy (habuf, "<null>"); - } else { - s = habuf; - for (i = 0; i < hlen; i++) { - sprintf (s, "%x", data [i]); - s += strlen (s); - *s++ = ':'; - } - *--s = 0; - } - return habuf; -} - -void print_lease (lease) - struct lease *lease; -{ - struct tm *t; - char tbuf [32]; - - debug (" Lease %s", - piaddr (lease -> ip_addr)); - - t = gmtime (&lease -> starts); - strftime (tbuf, sizeof tbuf, "%D %H:%M:%S", t); - debug (" start %s", tbuf); - - t = gmtime (&lease -> ends); - strftime (tbuf, sizeof tbuf, "%D %H:%M:%S", t); - debug (" end %s", tbuf); - - t = gmtime (&lease -> timestamp); - strftime (tbuf, sizeof tbuf, "%D %H:%M:%S", t); - debug (" stamp %s", tbuf); - - debug (" hardware addr = %s", - print_hw_addr (lease -> hardware_addr.htype, - lease -> hardware_addr.hlen, - lease -> hardware_addr.haddr)); - debug (" host %s state %x", - lease -> host ? lease -> host -> name : "<none>", - lease -> state); -} - -void dump_packet (tp) - struct packet *tp; -{ - struct dhcp_packet *tdp = tp -> raw; - - debug ("packet length %d", tp -> packet_length); - debug ("op = %d htype = %d hlen = %d hops = %d", - tdp -> op, tdp -> htype, tdp -> hlen, tdp -> hops); - debug ("xid = %x secs = %d flags = %x", - tdp -> xid, tdp -> secs, tdp -> flags); - debug ("ciaddr = %s", inet_ntoa (tdp -> ciaddr)); - debug ("yiaddr = %s", inet_ntoa (tdp -> yiaddr)); - debug ("siaddr = %s", inet_ntoa (tdp -> siaddr)); - debug ("giaddr = %s", inet_ntoa (tdp -> giaddr)); - debug ("chaddr = %02.2x:%02.2x:%02.2x:%02.2x:%02.2x:%02.2x", - ((unsigned char *)(tdp -> chaddr)) [0], - ((unsigned char *)(tdp -> chaddr)) [1], - ((unsigned char *)(tdp -> chaddr)) [2], - ((unsigned char *)(tdp -> chaddr)) [3], - ((unsigned char *)(tdp -> chaddr)) [4], - ((unsigned char *)(tdp -> chaddr)) [5]); - debug ("filename = %s", tdp -> file); - debug ("server_name = %s", tdp -> sname); - if (tp -> options_valid) { - int i; - - for (i = 0; i < 256; i++) { - if (tp -> options [i].data) - debug (" %s = %s", - dhcp_options [i].name, - pretty_print_option - (i, tp -> options [i].data, - tp -> options [i].len)); - } - } - debug (""); -} - -void dump_raw (buf, len) - unsigned char *buf; - int len; -{ - int i; - char lbuf [80]; - int lbix = 0; - - lbuf [0] = 0; - - for (i = 0; i < len; i++) { - if ((i & 15) == 0) { - if (lbix) - note (lbuf); - sprintf (lbuf, "%03x:", i); - lbix = 4; - } else if ((i & 7) == 0) - lbuf [lbix++] = ' '; - sprintf (&lbuf [lbix], " %02x", buf [i]); - lbix += 3; - } - note (lbuf); -} - -void hash_dump (table) - struct hash_table *table; -{ - int i; - struct hash_bucket *bp; - - if (!table) - return; - - for (i = 0; i < table -> hash_count; i++) { - if (!table -> buckets [i]) - continue; - note ("hash bucket %d:", i); - for (bp = table -> buckets [i]; bp; bp = bp -> next) { - if (bp -> len) - dump_raw (bp -> name, bp -> len); - else - note (bp -> name); - } - } -} - diff --git a/common/raw.c b/common/raw.c deleted file mode 100644 index b49d4d94..00000000 --- a/common/raw.c +++ /dev/null @@ -1,131 +0,0 @@ -/* socket.c - - BSD raw socket interface code... */ - -/* XXX - - It's not clear how this should work, and that lack of clarity is - terribly detrimental to the NetBSD 1.1 kernel - it crashes and - burns. - - Using raw sockets ought to be a big win over using BPF or something - like it, because you don't need to deal with the complexities of - the physical layer, but it appears not to be possible with existing - raw socket implementations. This may be worth revisiting in the - future. For now, this code can probably be considered a curiosity. - Sigh. */ - -/* - * Copyright (c) 1995, 1996 The Internet Software Consortium. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names - * of its contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This software has been written for the Internet Software Consortium - * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie - * Enterprises. To learn more about the Internet Software Consortium, - * see ``http://www.vix.com/isc''. To learn more about Vixie - * Enterprises, see ``http://www.vix.com''. */ - -#ifndef lint -static char copyright[] = -"$Id: raw.c,v 1.8 1996/09/04 07:06:39 mellon Exp $ Copyright (c) 1995, 1996 The Internet Software Consortium. All rights reserved.\n"; -#endif /* not lint */ - -#include "dhcpd.h" - -#if defined (USE_RAW_SEND) -#include <sys/uio.h> - -/* Generic interface registration routine... */ -void if_register_send (info, interface) - struct interface_info *info; - struct ifreq *interface; -{ - struct sockaddr_in name; - int sock; - struct socklist *tmp; - int flag; - - /* Set up the address we're going to connect to. */ - name.sin_family = AF_INET; - name.sin_port = server_port; - name.sin_addr.s_addr = htonl (INADDR_BROADCAST); - memset (name.sin_zero, 0, sizeof (name.sin_zero)); - - /* List addresses on which we're listening. */ - note ("Sending on %s, port %d", - piaddr (info -> address), htons (server_port)); - if ((sock = socket (AF_INET, SOCK_RAW, IPPROTO_RAW)) < 0) - error ("Can't create dhcp socket: %m"); - - /* Set the BROADCAST option so that we can broadcast DHCP responses. */ - flag = 1; - if (setsockopt (sock, SOL_SOCKET, SO_BROADCAST, - &flag, sizeof flag) < 0) - error ("Can't set SO_BROADCAST option on dhcp socket: %m"); - - /* Set the IP_HDRINCL flag so that we can supply our own IP - headers... */ - if (setsockopt (sock, IPPROTO_IP, IP_HDRINCL, &flag, sizeof flag) < 0) - error ("Can't set IP_HDRINCL flag: %m"); - - info -> wfdesc = sock; - note ("Sending on Raw/%s/%s", - info -> name, - (info -> shared_network ? - info -> shared_network -> name : "unattached")); -} - -size_t send_packet (interface, packet, raw, len, from, to, hto) - struct interface_info *interface; - struct packet *packet; - struct dhcp_packet *raw; - size_t len; - struct in_addr from; - struct sockaddr_in *to; - struct hardware *hto; -{ - unsigned char buf [256]; - int bufp = 0; - struct iovec iov [2]; - - /* Assemble the headers... */ - assemble_udp_ip_header (interface, buf, &bufp, from.s_addr, - to -> sin_addr.s_addr, to -> sin_port, - (unsigned char *)raw, len); - - /* Fire it off */ - iov [0].iov_base = (char *)buf; - iov [0].iov_len = bufp; - iov [1].iov_base = (char *)raw; - iov [1].iov_len = len; - - return writev(interface -> wfdesc, iov, 2); -} -#endif /* USE_SOCKET_SEND */ diff --git a/common/socket.c b/common/socket.c deleted file mode 100644 index dcd758a5..00000000 --- a/common/socket.c +++ /dev/null @@ -1,199 +0,0 @@ -/* socket.c - - BSD socket interface code... */ - -/* - * Copyright (c) 1995, 1996 The Internet Software Consortium. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names - * of its contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This software has been written for the Internet Software Consortium - * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie - * Enterprises. To learn more about the Internet Software Consortium, - * see ``http://www.vix.com/isc''. To learn more about Vixie - * Enterprises, see ``http://www.vix.com''. - */ - -#ifndef lint -static char copyright[] = -"$Id: socket.c,v 1.16 1996/08/27 09:54:48 mellon Exp $ Copyright (c) 1995, 1996 The Internet Software Consortium. All rights reserved.\n"; -#endif /* not lint */ - -#include "dhcpd.h" - -#ifdef USE_SOCKET_FALLBACK -# define USE_SOCKET_SEND -# define if_register_send if_register_fallback -# define send_packet send_fallback -#endif - -#if defined (USE_SOCKET_SEND) || defined (USE_SOCKET_RECEIVE) -/* Generic interface registration routine... */ -int if_register_socket (info, interface) - struct interface_info *info; - struct ifreq *interface; -{ - struct sockaddr_in name; - int sock; - int flag; - static int once = 0; - - /* Make sure only one interface is registered. */ - if (once) - error ("The standard socket API can only support %s%s%s%s%s", - "hosts with a single network interface. If you must ", - "run dhcpd on a host with multiple interfaces, ", - "you must compile in BPF or NIT support. If neither ", - "option is supported on your system, please let us ", - "know."); - - /* Technically, we need to know what interface every packet - comes in on, which means that we can only operate on a - machine with a single interface configured. However, - we generally don't expect to get broadcast packets on - point-to-point interfaces, so we can bend the rules a bit - and not count them. This won't allow DHCP-over-PPP, - but it's probably right in a lot of cases, and the issue - will have to be revisited when DHCP-over-PPP support is - done. Currently we determine whether an interface is - point-to-point by seeing if it has a link-level address. - This only works on 4.4BSD and derivative networking. */ -#ifdef AF_LINK - if (info -> hw_address.hlen) /* XXX */ -#endif - once = 1; - - /* Set up the address we're going to bind to. */ - name.sin_family = AF_INET; - name.sin_port = server_port; - name.sin_addr.s_addr = INADDR_ANY; - memset (name.sin_zero, 0, sizeof (name.sin_zero)); - - /* Make a socket... */ - if ((sock = socket (AF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0) - error ("Can't create dhcp socket: %m"); - - /* Set the REUSEADDR option so that we don't fail to start if - we're being restarted. */ - flag = 1; - if (setsockopt (sock, SOL_SOCKET, SO_REUSEADDR, - (char *)&flag, sizeof flag) < 0) - error ("Can't set SO_REUSEADDR option on dhcp socket: %m"); - - /* Set the BROADCAST option so that we can broadcast DHCP responses. */ - if (setsockopt (sock, SOL_SOCKET, SO_BROADCAST, - (char *)&flag, sizeof flag) < 0) - error ("Can't set SO_BROADCAST option on dhcp socket: %m"); - - /* Bind the socket to this interface's IP address. */ - if (bind (sock, (struct sockaddr *)&name, sizeof name) < 0) - error ("Can't bind to dhcp address: %m"); - - return sock; -} -#endif /* USE_SOCKET_SEND || USE_SOCKET_RECEIVE */ - -#ifdef USE_SOCKET_SEND -void if_register_send (info, interface) - struct interface_info *info; - struct ifreq *interface; - -{ -#ifndef USE_SOCKET_RECEIVE - info -> wfdesc = if_register_socket (info, interface); -#else - info -> wfdesc = info -> rfdesc; -#endif - note ("Sending on Socket/%s/%s", - info -> name, - (info -> shared_network ? - info -> shared_network -> name : "unattached")); - -} -#endif /* USE_SOCKET_SEND */ - -#ifdef USE_SOCKET_RECEIVE -void if_register_receive (info, interface) - struct interface_info *info; - struct ifreq *interface; -{ - /* If we're using the socket API for sending and receiving, - we don't need to register this interface twice. */ - info -> rfdesc = if_register_socket (info, interface); - note ("Listening on Socket/%s/%s", - info -> name, - (info -> shared_network ? - info -> shared_network -> name : "unattached")); -} -#endif /* USE_SOCKET_RECEIVE */ - -#ifdef USE_SOCKET_SEND -size_t send_packet (interface, packet, raw, len, from, to, hto) - struct interface_info *interface; - struct packet *packet; - struct dhcp_packet *raw; - size_t len; - struct in_addr from; - struct sockaddr_in *to; - struct hardware *hto; -{ - return sendto (interface -> wfdesc, (char *)raw, len, 0, - (struct sockaddr *)to, sizeof *to); -} -#endif /* USE_SOCKET_SEND */ - -#ifdef USE_SOCKET_RECEIVE -size_t receive_packet (interface, buf, len, from, hfrom) - struct interface_info *interface; - unsigned char *buf; - size_t len; - struct sockaddr_in *from; - struct hardware *hfrom; -{ - int flen = sizeof *from; - - return recvfrom (interface -> rfdesc, buf, len, 0, - (struct sockaddr *)from, &flen); -} -#endif /* USE_SOCKET_RECEIVE */ - -#ifdef USE_SOCKET_FALLBACK -/* This just reads in a packet and silently discards it. */ - -size_t fallback_discard (interface) - struct interface_info *interface; -{ - char buf [1540]; - struct sockaddr_in from; - int flen = sizeof from; - - return recvfrom (interface -> wfdesc, buf, sizeof buf, 0, - (struct sockaddr *)&from, &flen); -} -#endif /* USE_SOCKET_RECEIVE */ diff --git a/common/tables.c b/common/tables.c deleted file mode 100644 index e5c6ca27..00000000 --- a/common/tables.c +++ /dev/null @@ -1,690 +0,0 @@ -/* tables.c - - Tables of information... */ - -/* - * Copyright (c) 1995, 1996 The Internet Software Consortium. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names - * of its contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This software has been written for the Internet Software Consortium - * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie - * Enterprises. To learn more about the Internet Software Consortium, - * see ``http://www.vix.com/isc''. To learn more about Vixie - * Enterprises, see ``http://www.vix.com''. - */ - -#ifndef lint -static char copyright[] = -"$Id: tables.c,v 1.11 1996/09/11 06:34:25 mellon Exp $ Copyright (c) 1995, 1996 The Internet Software Consortium. All rights reserved.\n"; -#endif /* not lint */ - -#include "dhcpd.h" - -/* DHCP Option names, formats and codes, from RFC1533. - - Format codes: - - e - end of data - I - IP address - l - 32-bit signed integer - L - 32-bit unsigned integer - s - 16-bit signed integer - S - 16-bit unsigned integer - b - 8-bit signed integer - B - 8-bit unsigned integer - t - ASCII text - f - flag (true or false) - A - array of whatever precedes (e.g., IA means array of IP addresses) -*/ - -struct universe dhcp_universe; -struct option dhcp_options [256] = { - { "pad", "", &dhcp_universe, 0 }, - { "subnet-mask", "I", &dhcp_universe, 1 }, - { "time-offset", "l", &dhcp_universe, 2 }, - { "routers", "IA", &dhcp_universe, 3 }, - { "time-servers", "IA", &dhcp_universe, 4 }, - { "name-servers", "IA", &dhcp_universe, 5 }, - { "domain-name-servers", "IA", &dhcp_universe, 6 }, - { "log-servers", "IA", &dhcp_universe, 7 }, - { "cookie-servers", "IA", &dhcp_universe, 8 }, - { "lpr-servers", "IA", &dhcp_universe, 9 }, - { "impress-servers", "IA", &dhcp_universe, 10 }, - { "resource-location-servers", "IA", &dhcp_universe, 11 }, - { "host-name", "t", &dhcp_universe, 12 }, - { "boot-size", "S", &dhcp_universe, 13 }, - { "merit-dump", "t", &dhcp_universe, 14 }, - { "domain-name", "t", &dhcp_universe, 15 }, - { "swap-server", "I", &dhcp_universe, 16 }, - { "root-path", "t", &dhcp_universe, 17 }, - { "extensions-path", "t", &dhcp_universe, 18 }, - { "ip-forwarding", "f", &dhcp_universe, 19 }, - { "non-local-source-routing", "f", &dhcp_universe, 20 }, - { "policy-filter", "IIA", &dhcp_universe, 21 }, - { "max-dgram-reassembly", "S", &dhcp_universe, 22 }, - { "default-ip-ttl", "B", &dhcp_universe, 23 }, - { "path-mtu-aging-timeout", "L", &dhcp_universe, 24 }, - { "path-mtu-plateau-table", "SA", &dhcp_universe, 25 }, - { "interface-mtu", "S", &dhcp_universe, 26 }, - { "all-subnets-local", "f", &dhcp_universe, 27 }, - { "broadcast-address", "I", &dhcp_universe, 28 }, - { "perform-mask-discovery", "f", &dhcp_universe, 29 }, - { "mask-supplier", "f", &dhcp_universe, 30 }, - { "router-discovery", "f", &dhcp_universe, 31 }, - { "router-solicitation-address", "I", &dhcp_universe, 32 }, - { "static-routes", "IIA", &dhcp_universe, 33 }, - { "trailer-encapsulation", "f", &dhcp_universe, 34 }, - { "arp-cache-timeout", "L", &dhcp_universe, 35 }, - { "ieee802-3-encapsulation", "f", &dhcp_universe, 36 }, - { "default-tcp-ttl", "B", &dhcp_universe, 37 }, - { "tcp-keepalive-interval", "L", &dhcp_universe, 38 }, - { "tcp-keepalive-garbage", "f", &dhcp_universe, 39 }, - { "nis-domain", "t", &dhcp_universe, 40 }, - { "nis-servers", "IA", &dhcp_universe, 41 }, - { "ntp-servers", "IA", &dhcp_universe, 42 }, - { "vendor-encapsulated-options", "t", &dhcp_universe, 43 }, - { "netbios-name-servers", "IA", &dhcp_universe, 44 }, - { "netbios-dd-server", "IA", &dhcp_universe, 45 }, - { "netbios-node-type", "B", &dhcp_universe, 46 }, - { "netbios-scope", "t", &dhcp_universe, 47 }, - { "font-servers", "IA", &dhcp_universe, 48 }, - { "x-display-manager", "IA", &dhcp_universe, 49 }, - { "dhcp-requested-address", "I", &dhcp_universe, 50 }, - { "dhcp-lease-time", "L", &dhcp_universe, 51 }, - { "dhcp-option-overload", "B", &dhcp_universe, 52 }, - { "dhcp-message-type", "B", &dhcp_universe, 53 }, - { "dhcp-server-identifier", "I", &dhcp_universe, 54 }, - { "dhcp-parameter-request-list", "BA", &dhcp_universe, 55 }, - { "dhcp-message", "t", &dhcp_universe, 56 }, - { "dhcp-max-message-size", "S", &dhcp_universe, 57 }, - { "dhcp-renewal-time", "L", &dhcp_universe, 58 }, - { "dhcp-rebinding-time", "L", &dhcp_universe, 59 }, - { "dhcp-class-identifier", "t", &dhcp_universe, 60 }, - { "dhcp-client-identifier", "X", &dhcp_universe, 61 }, - { "option-62", "X", &dhcp_universe, 62 }, - { "option-63", "X", &dhcp_universe, 63 }, - { "option-64", "X", &dhcp_universe, 64 }, - { "option-65", "X", &dhcp_universe, 65 }, - { "option-66", "X", &dhcp_universe, 66 }, - { "option-67", "X", &dhcp_universe, 67 }, - { "option-68", "X", &dhcp_universe, 68 }, - { "option-69", "X", &dhcp_universe, 69 }, - { "option-70", "X", &dhcp_universe, 70 }, - { "option-71", "X", &dhcp_universe, 71 }, - { "option-72", "X", &dhcp_universe, 72 }, - { "option-73", "X", &dhcp_universe, 73 }, - { "option-74", "X", &dhcp_universe, 74 }, - { "option-75", "X", &dhcp_universe, 75 }, - { "option-76", "X", &dhcp_universe, 76 }, - { "dhcp-user-class-identifier", "t", &dhcp_universe, 77 }, - { "option-78", "X", &dhcp_universe, 78 }, - { "option-79", "X", &dhcp_universe, 79 }, - { "option-80", "X", &dhcp_universe, 80 }, - { "option-81", "X", &dhcp_universe, 81 }, - { "option-82", "X", &dhcp_universe, 82 }, - { "option-83", "X", &dhcp_universe, 83 }, - { "option-84", "X", &dhcp_universe, 84 }, - { "option-85", "X", &dhcp_universe, 85 }, - { "option-86", "X", &dhcp_universe, 86 }, - { "option-87", "X", &dhcp_universe, 87 }, - { "option-88", "X", &dhcp_universe, 88 }, - { "option-89", "X", &dhcp_universe, 89 }, - { "option-90", "X", &dhcp_universe, 90 }, - { "option-91", "X", &dhcp_universe, 91 }, - { "option-92", "X", &dhcp_universe, 92 }, - { "option-93", "X", &dhcp_universe, 93 }, - { "option-94", "X", &dhcp_universe, 94 }, - { "option-95", "X", &dhcp_universe, 95 }, - { "option-96", "X", &dhcp_universe, 96 }, - { "option-97", "X", &dhcp_universe, 97 }, - { "option-98", "X", &dhcp_universe, 98 }, - { "option-99", "X", &dhcp_universe, 99 }, - { "option-100", "X", &dhcp_universe, 100 }, - { "option-101", "X", &dhcp_universe, 101 }, - { "option-102", "X", &dhcp_universe, 102 }, - { "option-103", "X", &dhcp_universe, 103 }, - { "option-104", "X", &dhcp_universe, 104 }, - { "option-105", "X", &dhcp_universe, 105 }, - { "option-106", "X", &dhcp_universe, 106 }, - { "option-107", "X", &dhcp_universe, 107 }, - { "option-108", "X", &dhcp_universe, 108 }, - { "option-109", "X", &dhcp_universe, 109 }, - { "option-110", "X", &dhcp_universe, 110 }, - { "option-111", "X", &dhcp_universe, 111 }, - { "option-112", "X", &dhcp_universe, 112 }, - { "option-113", "X", &dhcp_universe, 113 }, - { "option-114", "X", &dhcp_universe, 114 }, - { "option-115", "X", &dhcp_universe, 115 }, - { "option-116", "X", &dhcp_universe, 116 }, - { "option-117", "X", &dhcp_universe, 117 }, - { "option-118", "X", &dhcp_universe, 118 }, - { "option-119", "X", &dhcp_universe, 119 }, - { "option-120", "X", &dhcp_universe, 120 }, - { "option-121", "X", &dhcp_universe, 121 }, - { "option-122", "X", &dhcp_universe, 122 }, - { "option-123", "X", &dhcp_universe, 123 }, - { "option-124", "X", &dhcp_universe, 124 }, - { "option-125", "X", &dhcp_universe, 125 }, - { "option-126", "X", &dhcp_universe, 126 }, - { "option-127", "X", &dhcp_universe, 127 }, - { "option-128", "X", &dhcp_universe, 128 }, - { "option-129", "X", &dhcp_universe, 129 }, - { "option-130", "X", &dhcp_universe, 130 }, - { "option-131", "X", &dhcp_universe, 131 }, - { "option-132", "X", &dhcp_universe, 132 }, - { "option-133", "X", &dhcp_universe, 133 }, - { "option-134", "X", &dhcp_universe, 134 }, - { "option-135", "X", &dhcp_universe, 135 }, - { "option-136", "X", &dhcp_universe, 136 }, - { "option-137", "X", &dhcp_universe, 137 }, - { "option-138", "X", &dhcp_universe, 138 }, - { "option-139", "X", &dhcp_universe, 139 }, - { "option-140", "X", &dhcp_universe, 140 }, - { "option-141", "X", &dhcp_universe, 141 }, - { "option-142", "X", &dhcp_universe, 142 }, - { "option-143", "X", &dhcp_universe, 143 }, - { "option-144", "X", &dhcp_universe, 144 }, - { "option-145", "X", &dhcp_universe, 145 }, - { "option-146", "X", &dhcp_universe, 146 }, - { "option-147", "X", &dhcp_universe, 147 }, - { "option-148", "X", &dhcp_universe, 148 }, - { "option-149", "X", &dhcp_universe, 149 }, - { "option-150", "X", &dhcp_universe, 150 }, - { "option-151", "X", &dhcp_universe, 151 }, - { "option-152", "X", &dhcp_universe, 152 }, - { "option-153", "X", &dhcp_universe, 153 }, - { "option-154", "X", &dhcp_universe, 154 }, - { "option-155", "X", &dhcp_universe, 155 }, - { "option-156", "X", &dhcp_universe, 156 }, - { "option-157", "X", &dhcp_universe, 157 }, - { "option-158", "X", &dhcp_universe, 158 }, - { "option-159", "X", &dhcp_universe, 159 }, - { "option-160", "X", &dhcp_universe, 160 }, - { "option-161", "X", &dhcp_universe, 161 }, - { "option-162", "X", &dhcp_universe, 162 }, - { "option-163", "X", &dhcp_universe, 163 }, - { "option-164", "X", &dhcp_universe, 164 }, - { "option-165", "X", &dhcp_universe, 165 }, - { "option-166", "X", &dhcp_universe, 166 }, - { "option-167", "X", &dhcp_universe, 167 }, - { "option-168", "X", &dhcp_universe, 168 }, - { "option-169", "X", &dhcp_universe, 169 }, - { "option-170", "X", &dhcp_universe, 170 }, - { "option-171", "X", &dhcp_universe, 171 }, - { "option-172", "X", &dhcp_universe, 172 }, - { "option-173", "X", &dhcp_universe, 173 }, - { "option-174", "X", &dhcp_universe, 174 }, - { "option-175", "X", &dhcp_universe, 175 }, - { "option-176", "X", &dhcp_universe, 176 }, - { "option-177", "X", &dhcp_universe, 177 }, - { "option-178", "X", &dhcp_universe, 178 }, - { "option-179", "X", &dhcp_universe, 179 }, - { "option-180", "X", &dhcp_universe, 180 }, - { "option-181", "X", &dhcp_universe, 181 }, - { "option-182", "X", &dhcp_universe, 182 }, - { "option-183", "X", &dhcp_universe, 183 }, - { "option-184", "X", &dhcp_universe, 184 }, - { "option-185", "X", &dhcp_universe, 185 }, - { "option-186", "X", &dhcp_universe, 186 }, - { "option-187", "X", &dhcp_universe, 187 }, - { "option-188", "X", &dhcp_universe, 188 }, - { "option-189", "X", &dhcp_universe, 189 }, - { "option-190", "X", &dhcp_universe, 190 }, - { "option-191", "X", &dhcp_universe, 191 }, - { "option-192", "X", &dhcp_universe, 192 }, - { "option-193", "X", &dhcp_universe, 193 }, - { "option-194", "X", &dhcp_universe, 194 }, - { "option-195", "X", &dhcp_universe, 195 }, - { "option-196", "X", &dhcp_universe, 196 }, - { "option-197", "X", &dhcp_universe, 197 }, - { "option-198", "X", &dhcp_universe, 198 }, - { "option-199", "X", &dhcp_universe, 199 }, - { "option-200", "X", &dhcp_universe, 200 }, - { "option-201", "X", &dhcp_universe, 201 }, - { "option-202", "X", &dhcp_universe, 202 }, - { "option-203", "X", &dhcp_universe, 203 }, - { "option-204", "X", &dhcp_universe, 204 }, - { "option-205", "X", &dhcp_universe, 205 }, - { "option-206", "X", &dhcp_universe, 206 }, - { "option-207", "X", &dhcp_universe, 207 }, - { "option-208", "X", &dhcp_universe, 208 }, - { "option-209", "X", &dhcp_universe, 209 }, - { "option-210", "X", &dhcp_universe, 210 }, - { "option-211", "X", &dhcp_universe, 211 }, - { "option-212", "X", &dhcp_universe, 212 }, - { "option-213", "X", &dhcp_universe, 213 }, - { "option-214", "X", &dhcp_universe, 214 }, - { "option-215", "X", &dhcp_universe, 215 }, - { "option-216", "X", &dhcp_universe, 216 }, - { "option-217", "X", &dhcp_universe, 217 }, - { "option-218", "X", &dhcp_universe, 218 }, - { "option-219", "X", &dhcp_universe, 219 }, - { "option-220", "X", &dhcp_universe, 220 }, - { "option-221", "X", &dhcp_universe, 221 }, - { "option-222", "X", &dhcp_universe, 222 }, - { "option-223", "X", &dhcp_universe, 223 }, - { "option-224", "X", &dhcp_universe, 224 }, - { "option-225", "X", &dhcp_universe, 225 }, - { "option-226", "X", &dhcp_universe, 226 }, - { "option-227", "X", &dhcp_universe, 227 }, - { "option-228", "X", &dhcp_universe, 228 }, - { "option-229", "X", &dhcp_universe, 229 }, - { "option-230", "X", &dhcp_universe, 230 }, - { "option-231", "X", &dhcp_universe, 231 }, - { "option-232", "X", &dhcp_universe, 232 }, - { "option-233", "X", &dhcp_universe, 233 }, - { "option-234", "X", &dhcp_universe, 234 }, - { "option-235", "X", &dhcp_universe, 235 }, - { "option-236", "X", &dhcp_universe, 236 }, - { "option-237", "X", &dhcp_universe, 237 }, - { "option-238", "X", &dhcp_universe, 238 }, - { "option-239", "X", &dhcp_universe, 239 }, - { "option-240", "X", &dhcp_universe, 240 }, - { "option-241", "X", &dhcp_universe, 241 }, - { "option-242", "X", &dhcp_universe, 242 }, - { "option-243", "X", &dhcp_universe, 243 }, - { "option-244", "X", &dhcp_universe, 244 }, - { "option-245", "X", &dhcp_universe, 245 }, - { "option-246", "X", &dhcp_universe, 246 }, - { "option-247", "X", &dhcp_universe, 247 }, - { "option-248", "X", &dhcp_universe, 248 }, - { "option-249", "X", &dhcp_universe, 249 }, - { "option-250", "X", &dhcp_universe, 250 }, - { "option-251", "X", &dhcp_universe, 251 }, - { "option-252", "X", &dhcp_universe, 252 }, - { "option-253", "X", &dhcp_universe, 253 }, - { "option-254", "X", &dhcp_universe, 254 }, - { "option-end", "e", &dhcp_universe, 255 }, -}; - -/* Default dhcp option priority list (this is ad hoc and should not be - mistaken for a carefully crafted and optimized list). */ -unsigned char dhcp_option_default_priority_list [] = { - DHO_DHCP_REQUESTED_ADDRESS, - DHO_DHCP_OPTION_OVERLOAD, - DHO_DHCP_MAX_MESSAGE_SIZE, - DHO_DHCP_RENEWAL_TIME, - DHO_DHCP_REBINDING_TIME, - DHO_DHCP_CLASS_IDENTIFIER, - DHO_DHCP_CLIENT_IDENTIFIER, - DHO_SUBNET_MASK, - DHO_TIME_OFFSET, - DHO_ROUTERS, - DHO_TIME_SERVERS, - DHO_NAME_SERVERS, - DHO_DOMAIN_NAME_SERVERS, - DHO_HOST_NAME, - DHO_LOG_SERVERS, - DHO_COOKIE_SERVERS, - DHO_LPR_SERVERS, - DHO_IMPRESS_SERVERS, - DHO_RESOURCE_LOCATION_SERVERS, - DHO_HOST_NAME, - DHO_BOOT_SIZE, - DHO_MERIT_DUMP, - DHO_DOMAIN_NAME, - DHO_SWAP_SERVER, - DHO_ROOT_PATH, - DHO_EXTENSIONS_PATH, - DHO_IP_FORWARDING, - DHO_NON_LOCAL_SOURCE_ROUTING, - DHO_POLICY_FILTER, - DHO_MAX_DGRAM_REASSEMBLY, - DHO_DEFAULT_IP_TTL, - DHO_PATH_MTU_AGING_TIMEOUT, - DHO_PATH_MTU_PLATEAU_TABLE, - DHO_INTERFACE_MTU, - DHO_ALL_SUBNETS_LOCAL, - DHO_BROADCAST_ADDRESS, - DHO_PERFORM_MASK_DISCOVERY, - DHO_MASK_SUPPLIER, - DHO_ROUTER_DISCOVERY, - DHO_ROUTER_SOLICITATION_ADDRESS, - DHO_STATIC_ROUTES, - DHO_TRAILER_ENCAPSULATION, - DHO_ARP_CACHE_TIMEOUT, - DHO_IEEE802_3_ENCAPSULATION, - DHO_DEFAULT_TCP_TTL, - DHO_TCP_KEEPALIVE_INTERVAL, - DHO_TCP_KEEPALIVE_GARBAGE, - DHO_NIS_DOMAIN, - DHO_NIS_SERVERS, - DHO_NTP_SERVERS, - DHO_VENDOR_ENCAPSULATED_OPTIONS, - DHO_NETBIOS_NAME_SERVERS, - DHO_NETBIOS_DD_SERVER, - DHO_NETBIOS_NODE_TYPE, - DHO_NETBIOS_SCOPE, - DHO_FONT_SERVERS, - DHO_X_DISPLAY_MANAGER, - DHO_DHCP_PARAMETER_REQUEST_LIST, - - /* Presently-undefined options... */ - 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, - 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, - 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, - 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, - 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, - 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, - 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, - 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, - 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, - 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, - 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, - 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, - 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, - 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, - 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, - 251, 252, 253, 254, -}; - -int sizeof_dhcp_option_default_priority_list = - sizeof dhcp_option_default_priority_list; - - -char *hardware_types [] = { - "unknown-0", - "ethernet", - "unknown-2", - "unknown-3", - "unknown-4", - "unknown-5", - "token-ring", - "unknown-7", - "unknown-8", - "unknown-9", - "unknown-10", - "unknown-11", - "unknown-12", - "unknown-13", - "unknown-14", - "unknown-15", - "unknown-16", - "unknown-17", - "unknown-18", - "unknown-19", - "unknown-20", - "unknown-21", - "unknown-22", - "unknown-23", - "unknown-24", - "unknown-25", - "unknown-26", - "unknown-27", - "unknown-28", - "unknown-29", - "unknown-30", - "unknown-31", - "unknown-32", - "unknown-33", - "unknown-34", - "unknown-35", - "unknown-36", - "unknown-37", - "unknown-38", - "unknown-39", - "unknown-40", - "unknown-41", - "unknown-42", - "unknown-43", - "unknown-44", - "unknown-45", - "unknown-46", - "unknown-47", - "unknown-48", - "unknown-49", - "unknown-50", - "unknown-51", - "unknown-52", - "unknown-53", - "unknown-54", - "unknown-55", - "unknown-56", - "unknown-57", - "unknown-58", - "unknown-59", - "unknown-60", - "unknown-61", - "unknown-62", - "unknown-63", - "unknown-64", - "unknown-65", - "unknown-66", - "unknown-67", - "unknown-68", - "unknown-69", - "unknown-70", - "unknown-71", - "unknown-72", - "unknown-73", - "unknown-74", - "unknown-75", - "unknown-76", - "unknown-77", - "unknown-78", - "unknown-79", - "unknown-80", - "unknown-81", - "unknown-82", - "unknown-83", - "unknown-84", - "unknown-85", - "unknown-86", - "unknown-87", - "unknown-88", - "unknown-89", - "unknown-90", - "unknown-91", - "unknown-92", - "unknown-93", - "unknown-94", - "unknown-95", - "unknown-96", - "unknown-97", - "unknown-98", - "unknown-99", - "unknown-100", - "unknown-101", - "unknown-102", - "unknown-103", - "unknown-104", - "unknown-105", - "unknown-106", - "unknown-107", - "unknown-108", - "unknown-109", - "unknown-110", - "unknown-111", - "unknown-112", - "unknown-113", - "unknown-114", - "unknown-115", - "unknown-116", - "unknown-117", - "unknown-118", - "unknown-119", - "unknown-120", - "unknown-121", - "unknown-122", - "unknown-123", - "unknown-124", - "unknown-125", - "unknown-126", - "unknown-127", - "unknown-128", - "unknown-129", - "unknown-130", - "unknown-131", - "unknown-132", - "unknown-133", - "unknown-134", - "unknown-135", - "unknown-136", - "unknown-137", - "unknown-138", - "unknown-139", - "unknown-140", - "unknown-141", - "unknown-142", - "unknown-143", - "unknown-144", - "unknown-145", - "unknown-146", - "unknown-147", - "unknown-148", - "unknown-149", - "unknown-150", - "unknown-151", - "unknown-152", - "unknown-153", - "unknown-154", - "unknown-155", - "unknown-156", - "unknown-157", - "unknown-158", - "unknown-159", - "unknown-160", - "unknown-161", - "unknown-162", - "unknown-163", - "unknown-164", - "unknown-165", - "unknown-166", - "unknown-167", - "unknown-168", - "unknown-169", - "unknown-170", - "unknown-171", - "unknown-172", - "unknown-173", - "unknown-174", - "unknown-175", - "unknown-176", - "unknown-177", - "unknown-178", - "unknown-179", - "unknown-180", - "unknown-181", - "unknown-182", - "unknown-183", - "unknown-184", - "unknown-185", - "unknown-186", - "unknown-187", - "unknown-188", - "unknown-189", - "unknown-190", - "unknown-191", - "unknown-192", - "unknown-193", - "unknown-194", - "unknown-195", - "unknown-196", - "unknown-197", - "unknown-198", - "unknown-199", - "unknown-200", - "unknown-201", - "unknown-202", - "unknown-203", - "unknown-204", - "unknown-205", - "unknown-206", - "unknown-207", - "unknown-208", - "unknown-209", - "unknown-210", - "unknown-211", - "unknown-212", - "unknown-213", - "unknown-214", - "unknown-215", - "unknown-216", - "unknown-217", - "unknown-218", - "unknown-219", - "unknown-220", - "unknown-221", - "unknown-222", - "unknown-223", - "unknown-224", - "unknown-225", - "unknown-226", - "unknown-227", - "unknown-228", - "unknown-229", - "unknown-230", - "unknown-231", - "unknown-232", - "unknown-233", - "unknown-234", - "unknown-235", - "unknown-236", - "unknown-237", - "unknown-238", - "unknown-239", - "unknown-240", - "unknown-241", - "unknown-242", - "unknown-243", - "unknown-244", - "unknown-245", - "unknown-246", - "unknown-247", - "unknown-248", - "unknown-249", - "unknown-250", - "unknown-251", - "unknown-252", - "unknown-253", - "unknown-254", - "unknown-255" }; - - - -struct hash_table universe_hash; - -void initialize_universes() -{ - int i; - - dhcp_universe.name = "dhcp"; - dhcp_universe.hash = new_hash (); - if (!dhcp_universe.hash) - error ("Can't allocate dhcp option hash table."); - for (i = 0; i < 256; i++) { - dhcp_universe.options [i] = &dhcp_options [i]; - add_hash (dhcp_universe.hash, dhcp_options [i].name, 0, - (unsigned char *)&dhcp_options [i]); - } - universe_hash.hash_count = DEFAULT_HASH_SIZE; - add_hash (&universe_hash, dhcp_universe.name, 0, - (unsigned char *)&dhcp_universe); -} diff --git a/common/tree.c b/common/tree.c deleted file mode 100644 index 8168522a..00000000 --- a/common/tree.c +++ /dev/null @@ -1,408 +0,0 @@ -/* tree.c - - Routines for manipulating parse trees... */ - -/* - * Copyright (c) 1995, 1996 The Internet Software Consortium. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names - * of its contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This software has been written for the Internet Software Consortium - * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie - * Enterprises. To learn more about the Internet Software Consortium, - * see ``http://www.vix.com/isc''. To learn more about Vixie - * Enterprises, see ``http://www.vix.com''. - */ - -#ifndef lint -static char copyright[] = -"$Id: tree.c,v 1.9 1996/08/27 09:55:50 mellon Exp $ Copyright (c) 1995, 1996 The Internet Software Consortium. All rights reserved.\n"; -#endif /* not lint */ - -#include "dhcpd.h" - -static TIME tree_evaluate_recurse PROTO ((int *, unsigned char **, int *, - struct tree *)); -static TIME do_host_lookup PROTO ((int *, unsigned char **, int *, - struct dns_host_entry *)); -static void do_data_copy PROTO ((int *, unsigned char **, int *, - unsigned char *, int)); - -pair cons (car, cdr) - caddr_t car; - pair cdr; -{ - pair foo = (pair)dmalloc (sizeof *foo, "cons"); - if (!foo) - error ("no memory for cons."); - foo -> car = car; - foo -> cdr = cdr; - return foo; -} - -struct tree_cache *tree_cache (tree) - struct tree *tree; -{ - struct tree_cache *tc; - - tc = new_tree_cache ("tree_cache"); - if (!tc) - return 0; - tc -> value = (unsigned char *)0; - tc -> len = tc -> buf_size = 0; - tc -> timeout = 0; - tc -> tree = tree; - return tc; -} - -struct tree *tree_host_lookup (name) - char *name; -{ - struct tree *nt; - nt = new_tree ("tree_host_lookup"); - if (!nt) - error ("No memory for host lookup tree node."); - nt -> op = TREE_HOST_LOOKUP; - nt -> data.host_lookup.host = enter_dns_host (name); - return nt; -} - -struct dns_host_entry *enter_dns_host (name) - char *name; -{ - struct dns_host_entry *dh; - - if (!(dh = (struct dns_host_entry *)dmalloc - (sizeof (struct dns_host_entry), "enter_dns_host")) - || !(dh -> hostname = dmalloc (strlen (name) + 1, - "enter_dns_host"))) - error ("Can't allocate space for new host."); - strcpy (dh -> hostname, name); - dh -> data = (unsigned char *)0; - dh -> data_len = 0; - dh -> buf_len = 0; - dh -> timeout = 0; - return dh; -} - -struct tree *tree_const (data, len) - unsigned char *data; - int len; -{ - struct tree *nt; - if (!(nt = new_tree ("tree_const")) - || !(nt -> data.const_val.data = - (unsigned char *)dmalloc (len, "tree_const"))) - error ("No memory for constant data tree node."); - nt -> op = TREE_CONST; - memcpy (nt -> data.const_val.data, data, len); - nt -> data.const_val.len = len; - return nt; -} - -struct tree *tree_concat (left, right) - struct tree *left, *right; -{ - struct tree *nt; - - /* If we're concatenating a null tree to a non-null tree, just - return the non-null tree; if both trees are null, return - a null tree. */ - if (!left) - return right; - if (!right) - return left; - - /* If both trees are constant, combine them. */ - if (left -> op == TREE_CONST && right -> op == TREE_CONST) { - unsigned char *buf = dmalloc (left -> data.const_val.len - + right -> data.const_val.len, - "tree_concat"); - if (!buf) - error ("No memory to concatenate constants."); - memcpy (buf, left -> data.const_val.data, - left -> data.const_val.len); - memcpy (buf + left -> data.const_val.len, - right -> data.const_val.data, - right -> data.const_val.len); - dfree (left -> data.const_val.data, "tree_concat"); - dfree (right -> data.const_val.data, "tree_concat"); - left -> data.const_val.data = buf; - left -> data.const_val.len += right -> data.const_val.len; - free_tree (right, "tree_concat"); - return left; - } - - /* Otherwise, allocate a new node to concatenate the two. */ - if (!(nt = new_tree ("tree_concat"))) - error ("No memory for data tree concatenation node."); - nt -> op = TREE_CONCAT; - nt -> data.concat.left = left; - nt -> data.concat.right = right; - return nt; -} - -struct tree *tree_limit (tree, limit) - struct tree *tree; - int limit; -{ - struct tree *rv; - - /* If the tree we're limiting is constant, limit it now. */ - if (tree -> op == TREE_CONST) { - if (tree -> data.const_val.len > limit) - tree -> data.const_val.len = limit; - return tree; - } - - /* Otherwise, put in a node which enforces the limit on evaluation. */ - rv = new_tree ("tree_limit"); - if (!rv) - return (struct tree *)0; - rv -> op = TREE_LIMIT; - rv -> data.limit.tree = tree; - rv -> data.limit.limit = limit; - return rv; -} - -int tree_evaluate (tree_cache) - struct tree_cache *tree_cache; -{ - unsigned char *bp = tree_cache -> value; - int bc = tree_cache -> buf_size; - int bufix = 0; - - /* If there's no tree associated with this cache, it evaluates - to a constant and that was detected at startup. */ - if (!tree_cache -> tree) - return 1; - - /* Try to evaluate the tree without allocating more memory... */ - tree_cache -> timeout = tree_evaluate_recurse (&bufix, &bp, &bc, - tree_cache -> tree); - - /* No additional allocation needed? */ - if (bufix <= bc) { - tree_cache -> len = bufix; - return 1; - } - - /* If we can't allocate more memory, return with what we - have (maybe nothing). */ - if (!(bp = (unsigned char *)dmalloc (bufix, "tree_evaluate"))) - return 0; - - /* Record the change in conditions... */ - bc = bufix; - bufix = 0; - - /* Note that the size of the result shouldn't change on the - second call to tree_evaluate_recurse, since we haven't - changed the ``current'' time. */ - tree_evaluate_recurse (&bufix, &bp, &bc, tree_cache -> tree); - - /* Free the old buffer if needed, then store the new buffer - location and size and return. */ - if (tree_cache -> value) - dfree (tree_cache -> value, "tree_evaluate"); - tree_cache -> value = bp; - tree_cache -> len = bufix; - tree_cache -> buf_size = bc; - return 1; -} - -static TIME tree_evaluate_recurse (bufix, bufp, bufcount, tree) - int *bufix; - unsigned char **bufp; - int *bufcount; - struct tree *tree; -{ - int limit; - TIME t1, t2; - - switch (tree -> op) { - case TREE_CONCAT: - t1 = tree_evaluate_recurse (bufix, bufp, bufcount, - tree -> data.concat.left); - t2 = tree_evaluate_recurse (bufix, bufp, bufcount, - tree -> data.concat.right); - if (t1 > t2) - return t2; - return t1; - - case TREE_HOST_LOOKUP: - return do_host_lookup (bufix, bufp, bufcount, - tree -> data.host_lookup.host); - - case TREE_CONST: - do_data_copy (bufix, bufp, bufcount, - tree -> data.const_val.data, - tree -> data.const_val.len); - t1 = MAX_TIME; - return t1; - - case TREE_LIMIT: - limit = *bufix + tree -> data.limit.limit; - t1 = tree_evaluate_recurse (bufix, bufp, bufcount, - tree -> data.limit.tree); - *bufix = limit; - return t1; - - default: - warn ("Bad node id in tree: %d."); - t1 = MAX_TIME; - return t1; - } -} - -static TIME do_host_lookup (bufix, bufp, bufcount, dns) - int *bufix; - unsigned char **bufp; - int *bufcount; - struct dns_host_entry *dns; -{ - struct hostent *h; - int i; - int new_len; - -#ifdef DEBUG_EVAL - debug ("time: now = %d dns = %d %d diff = %d", - cur_time, dns -> timeout, cur_time - dns -> timeout); -#endif - - /* If the record hasn't timed out, just copy the data and return. */ - if (cur_time <= dns -> timeout) { -#ifdef DEBUG_EVAL - debug ("easy copy: %x %d %x", - dns -> data, dns -> data_len, - dns -> data ? *(int *)(dns -> data) : 0); -#endif - do_data_copy (bufix, bufp, bufcount, - dns -> data, dns -> data_len); - return dns -> timeout; - } -#ifdef DEBUG_EVAL - debug ("Looking up %s", dns -> hostname); -#endif - - /* Otherwise, look it up... */ - h = gethostbyname (dns -> hostname); - if (!h) { - switch (h_errno) { - case HOST_NOT_FOUND: - warn ("%s: host unknown.", dns -> hostname); - break; - case TRY_AGAIN: - warn ("%s: temporary name server failure", - dns -> hostname); - break; - case NO_RECOVERY: - warn ("%s: name server failed", dns -> hostname); - break; - case NO_DATA: - warn ("%s: no A record associated with address", - dns -> hostname); - } - - /* Okay to try again after a minute. */ - return cur_time + 60; - } - -#ifdef DEBUG_EVAL - debug ("Lookup succeeded; first address is %x", - h -> h_addr_list [0]); -#endif - - /* Count the number of addresses we got... */ - for (i = 0; h -> h_addr_list [i]; i++) - ; - - /* Do we need to allocate more memory? */ - new_len = i * h -> h_length; - if (dns -> buf_len < i) { - unsigned char *buf = - (unsigned char *)dmalloc (new_len, "do_host_lookup"); - /* If we didn't get more memory, use what we have. */ - if (!buf) { - new_len = dns -> buf_len; - if (!dns -> buf_len) { - dns -> timeout = cur_time + 60; - return dns -> timeout; - } - } else { - if (dns -> data) - dfree (dns -> data, "do_host_lookup"); - dns -> data = buf; - dns -> buf_len = new_len; - } - } - - /* Addresses are conveniently stored one to the buffer, so we - have to copy them out one at a time... :'( */ - for (i = 0; i < new_len / h -> h_length; i++) { - memcpy (dns -> data + h -> h_length * i, - h -> h_addr_list [i], h -> h_length); - } -#ifdef DEBUG_EVAL - debug ("dns -> data: %x h -> h_addr_list [0]: %x", - *(int *)(dns -> data), h -> h_addr_list [0]); -#endif - dns -> data_len = new_len; - - /* Set the timeout for an hour from now. - XXX This should really use the time on the DNS reply. */ - dns -> timeout = cur_time + 3600; - -#ifdef DEBUG_EVAL - debug ("hard copy: %x %d %x", - dns -> data, dns -> data_len, *(int *)(dns -> data)); -#endif - do_data_copy (bufix, bufp, bufcount, dns -> data, dns -> data_len); - return dns -> timeout; -} - -static void do_data_copy (bufix, bufp, bufcount, data, len) - int *bufix; - unsigned char **bufp; - int *bufcount; - unsigned char *data; - int len; -{ - int space = *bufcount - *bufix; - - /* If there's more space than we need, use only what we need. */ - if (space > len) - space = len; - - /* Copy as much data as will fit, then increment the buffer index - by the amount we actually had to copy, which could be more. */ - if (space > 0) - memcpy (*bufp + *bufix, data, space); - *bufix += len; -} diff --git a/includes/cdefs.h b/includes/cdefs.h deleted file mode 100644 index 2bc67a52..00000000 --- a/includes/cdefs.h +++ /dev/null @@ -1,57 +0,0 @@ -/* cdefs.h - - Standard C definitions... */ - -/* - * Copyright (c) 1996 The Internet Software Consortium. - * All Rights Reserved. - * Copyright (c) 1995 RadioMail Corporation. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of RadioMail Corporation, the Internet Software - * Consortium nor the names of its contributors may be used to endorse - * or promote products derived from this software without specific - * prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY RADIOMAIL CORPORATION, THE INTERNET - * SOFTWARE CONSORTIUM AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL RADIOMAIL CORPORATION OR CONTRIBUTORS - * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED - * OF THE POSSIBILITY OF SUCH DAMAGE. - * - * This software was written for RadioMail Corporation by Ted Lemon - * under a contract with Vixie Enterprises. Further modifications have - * been made for the Internet Software Consortium under a contract - * with Vixie Laboratories. - */ - -#if (defined (__GNUC__) || defined (__STDC__)) && !defined (BROKEN_ANSI) -#define PROTO(x) x -#define KandR(x) -#define ANSI_DECL(x) x -#if defined (__GNUC__) -#define INLINE inline -#else -#define INLINE -#endif /* __GNUC__ */ -#else -#define PROTO(x) () -#define KandR(x) x -#define ANSI_DECL(x) -#define INLINE -#endif /* __GNUC__ || __STDC__ */ diff --git a/includes/cf/alphaosf.h b/includes/cf/alphaosf.h deleted file mode 100644 index 6f154b42..00000000 --- a/includes/cf/alphaosf.h +++ /dev/null @@ -1,98 +0,0 @@ -/* alphaosf.h - - System dependencies for DEC Alpha/OSF1... */ - -/* - * Copyright (c) 1996 The Internet Software Consortium. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, - * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL - * THE INTERNET SOFTWARE CONSORTIUM OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED - * OF THE POSSIBILITY OF SUCH DAMAGE. - * - * This software was written for the Internet Software Consortium by Ted Lemon - * under a contract with Vixie Laboratories. - */ - -/* Define the basic integer types... */ -typedef char int8_t; -typedef short int16_t; -typedef int int32_t; - -typedef unsigned char u_int8_t; -typedef unsigned short u_int16_t; -typedef unsigned int u_int32_t; - -#include <syslog.h> -#include <sys/types.h> -#include <string.h> -#include <paths.h> -#include <errno.h> -#include <malloc.h> -#include <unistd.h> -#include <setjmp.h> -#include <limits.h> - -#include <sys/wait.h> -#include <signal.h> - -extern int h_errno; - -#include <net/if.h> -#include <net/if_dl.h> - -/* Varargs stuff... */ -#include <varargs.h> -#define VA_DOTDOTDOT va_alist -#define VA_start(list, last) va_start (list) - -#ifndef _PATH_DHCPD_PID -#define _PATH_DHCPD_PID "/var/run/dhcpd.pid" -#endif - -#define EOL '\n' -#define VOIDPTR void * - -/* Time stuff... */ -#include <sys/time.h> -#define TIME time_t -#define GET_TIME(x) time ((x)) - -/* The jmp_buf type is an array on OSF/1, so we can't dereference it - and must declare it differently. */ -#define jbp_decl(x) jmp_buf x -#define jref(x) (x) -#define jdref(x) (x) -#define jrefproto jmp_buf - -/* OSF/1 doesn't support limited sprintfs. */ -#define vsnprintf(buf, size, fmt, list) vsprintf (buf, fmt, list) -#define NO_SNPRINTF - -#define NEED_OSF_PFILT_HACKS -#define BPF_FORMAT "/dev/pf/pfilt%d" - -#if defined (USE_DEFAULT_NETWORK) -# define USE_BPF -#endif diff --git a/includes/cf/bsdos.h b/includes/cf/bsdos.h deleted file mode 100644 index 8af03e9b..00000000 --- a/includes/cf/bsdos.h +++ /dev/null @@ -1,81 +0,0 @@ -/* bsdos.h - - System dependencies for BSDI BSD/OS... */ - -/* - * Copyright (c) 1996 The Internet Software Consortium. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, - * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL - * THE INTERNET SOFTWARE CONSORTIUM OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED - * OF THE POSSIBILITY OF SUCH DAMAGE. - * - * This software was written for the Internet Software Consortium by Ted Lemon - * under a contract with Vixie Laboratories. - */ - -#include <syslog.h> -#include <sys/types.h> -#include <string.h> -#include <paths.h> -#include <errno.h> -#include <unistd.h> -#include <setjmp.h> -#include <limits.h> - -#include <sys/wait.h> -#include <signal.h> - -extern int h_errno; - -#include <net/if.h> -#include <net/if_dl.h> -#define INADDR_LOOPBACK ((u_int32_t)0x7f000001) - -/* Varargs stuff... */ -#include <stdarg.h> -#define VA_DOTDOTDOT ... -#define va_dcl -#define VA_start(list, last) va_start (list, last) - -#ifndef _PATH_DHCPD_PID -#define _PATH_DHCPD_PID "/var/run/dhcpd.pid" -#endif -#ifndef _PATH_DHCPD_DB -#define _PATH_DHCPD_DB "/var/db/dhcpd.leases" -#endif - -#define EOL '\n' -#define VOIDPTR void * - -/* Time stuff... */ -#include <sys/time.h> -#define TIME time_t -#define GET_TIME(x) time ((x)) - -#define HAVE_SA_LEN - -#if defined (USE_DEFAULT_NETWORK) -# define USE_BPF -#endif diff --git a/includes/cf/freebsd.h b/includes/cf/freebsd.h deleted file mode 100644 index 618f74a4..00000000 --- a/includes/cf/freebsd.h +++ /dev/null @@ -1,84 +0,0 @@ -/* freebsd.h - - System dependencies for FreeBSD... */ - -/* - * Copyright (c) 1996 The Internet Software Consortium. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, - * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL - * THE INTERNET SOFTWARE CONSORTIUM OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED - * OF THE POSSIBILITY OF SUCH DAMAGE. - * - * This software was written for the Internet Software Consortium by Ted Lemon - * under a contract with Vixie Laboratories. - */ - -#define _ANSI_SOURCE - -#include <syslog.h> -#include <sys/types.h> -#include <string.h> -#include <paths.h> -#include <errno.h> -#include <unistd.h> -#include <setjmp.h> -#include <limits.h> - -#include <sys/wait.h> -#include <signal.h> - -extern int h_errno; - -#include <net/if.h> -#include <net/if_dl.h> -#define INADDR_LOOPBACK ((u_int32_t)0x7f000001) - -/* Varargs stuff... */ -#include <stdarg.h> -#define VA_DOTDOTDOT ... -#define va_dcl -#define VA_start(list, last) va_start (list, last) - -#ifndef _PATH_DHCPD_PID -#define _PATH_DHCPD_PID "/var/run/dhcpd.pid" -#endif -#ifndef _PATH_DHCPD_DB -#define _PATH_DHCPD_DB "/var/db/dhcpd.leases" -#endif - -#define EOL '\n' -#define VOIDPTR void * - -/* Time stuff... */ -#include <sys/time.h> -#define TIME time_t -#define GET_TIME(x) time ((x)) - -#define HAVE_SA_LEN - -#if defined (USE_DEFAULT_NETWORK) -# define USE_BPF -# define BROKEN_FREEBSD_BPF /* Fixed in 2.2 */ -#endif diff --git a/includes/cf/hpux.h b/includes/cf/hpux.h deleted file mode 100644 index c5d2cdf8..00000000 --- a/includes/cf/hpux.h +++ /dev/null @@ -1,78 +0,0 @@ -/* hpux.h */ -/* - * Copyright (c) 1996 The Internet Software Consortium. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, - * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL - * INTERNET SOFTWARE CONSORTIUM OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED - * OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#define int8_t char -#define int16_t short -#define int32_t long - -#define u_int8_t unsigned char -#define u_int16_t unsigned short -#define u_int32_t unsigned long - -#include <sys/types.h> - -#include <syslog.h> - -#include <string.h> -#include <errno.h> -#include <unistd.h> -#include <sys/wait.h> -#include <signal.h> -#include <setjmp.h> -#include <limits.h> - -extern int h_errno; - -#include <net/if.h> -#include <net/if_arp.h> - -#ifndef _PATH_DHCPD_PID -#define _PATH_DHCPD_PID "/etc/dhcpd.pid" -#endif - -#include <varargs.h> -#define VA_DOTDOTDOT va_alist -#define VA_start(list, last) va_start (list) - -#define vsnprintf(buf, size, fmt, list) vsprintf (buf, fmt, list) -#define NO_SNPRINTF - -#define USE_SOCKETS 1 -#define EOL '\n' -#define VOIDPTR void * - -#include <time.h> - -#define TIME time_t -#define GET_TIME(x) time ((x)) - -#define random rand diff --git a/includes/cf/linux.h b/includes/cf/linux.h deleted file mode 100644 index 8e439d0b..00000000 --- a/includes/cf/linux.h +++ /dev/null @@ -1,95 +0,0 @@ -/* linux.h - - System dependencies for Linux. - - Based on a configuration originally supplied by Jonathan Stone. */ - -/* - * Copyright (c) 1996 The Internet Software Consortium. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, - * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL - * THE INTERNET SOFTWARE CONSORTIUM OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED - * OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include <features.h> -#ifndef __BIT_TYPES_DEFINED__ -#define __BIT_TYPES_DEFINED__ -#undef __USE_BSD -typedef char int8_t; -typedef short int16_t; -typedef long int32_t; - -typedef unsigned char u_int8_t; -typedef unsigned short u_int16_t; -typedef unsigned long u_int32_t; -#endif /* __BIT_TYPES_DEFINED__ */ - -#include <syslog.h> -#include <sys/types.h> -#include <string.h> -#include <errno.h> -#include <unistd.h> -#include <sys/wait.h> -#include <signal.h> -#include <setjmp.h> -#include <limits.h> - -extern int h_errno; - -#include <net/if.h> - -#include <sys/time.h> /* gettimeofday()*/ -#include <linux/time.h> /* also necessary */ - -#ifndef _PATH_DHCPD_PID -#define _PATH_DHCPD_PID "/var/run/dhcpd.pid" -#endif - -/* Varargs stuff... */ -#include <stdarg.h> -#define VA_DOTDOTDOT ... -#define VA_start(list, last) va_start (list, last) -#define va_dcl - -#define vsnprintf(buf, size, fmt, list) vsprintf (buf, fmt, list) -#define NO_SNPRINTF - -#define VOIDPTR void * - -#define EOL '\n' - -/* Time stuff... */ - -#include <time.h> - -#define TIME time_t -#define GET_TIME(x) time ((x)) - -#if defined (USE_DEFAULT_NETWORK) -# define USE_SOCKETS -#endif - -#define ALIAS_NAMES_PERMUTED diff --git a/includes/cf/netbsd.h b/includes/cf/netbsd.h deleted file mode 100644 index 23f0b30d..00000000 --- a/includes/cf/netbsd.h +++ /dev/null @@ -1,81 +0,0 @@ -/* netbsd.h - - System dependencies for NetBSD... */ - -/* - * Copyright (c) 1996 The Internet Software Consortium. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, - * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL - * THE INTERNET SOFTWARE CONSORTIUM OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED - * OF THE POSSIBILITY OF SUCH DAMAGE. - * - * This software was written for the Internet Software Consortium by Ted Lemon - * under a contract with Vixie Laboratories. - */ - -#include <syslog.h> -#include <sys/types.h> -#include <string.h> -#include <paths.h> -#include <errno.h> -#include <malloc.h> -#include <unistd.h> -#include <setjmp.h> -#include <limits.h> - -#include <sys/wait.h> -#include <signal.h> - -extern int h_errno; - -#include <net/if.h> -#include <net/if_dl.h> - -/* Varargs stuff... */ -#include <stdarg.h> -#define VA_DOTDOTDOT ... -#define va_dcl -#define VA_start(list, last) va_start (list, last) - -#ifndef _PATH_DHCPD_PID -#define _PATH_DHCPD_PID "/var/run/dhcpd.pid" -#endif -#ifndef _PATH_DHCPD_DB -#define _PATH_DHCPD_DB "/var/db/dhcpd.leases" -#endif - -#define EOL '\n' -#define VOIDPTR void * - -/* Time stuff... */ -#include <sys/time.h> -#define TIME time_t -#define GET_TIME(x) time ((x)) - -#define HAVE_SA_LEN - -#if defined (USE_DEFAULT_NETWORK) -# define USE_BPF -#endif diff --git a/includes/cf/qnx.h b/includes/cf/qnx.h deleted file mode 100644 index a6127586..00000000 --- a/includes/cf/qnx.h +++ /dev/null @@ -1,106 +0,0 @@ -/* qnx.h - - System dependencies for QNX... -*/ - -/* - * Copyright (c) 1996 The Internet Software Consortium. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of RadioMail Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY RADIOMAIL CORPORATION AND CONTRIBUTORS - * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL - * RADIOMAIL CORPORATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED - * OF THE POSSIBILITY OF SUCH DAMAGE. - * - * This software was written for the Internet Software Consortium by Ted Lemon - * under a contract with Vixie Labs. - */ - -#include <sys/types.h> -#include <stdlib.h> -#include <string.h> -#include <errno.h> -#include <unistd.h> -#include <setjmp.h> -#include <limits.h> -#include <syslog.h> -#include <sys/select.h> - -#include <sys/wait.h> -#include <signal.h> - -#include <netdb.h> -extern int h_errno; - -#include <net/if.h> -#define INADDR_LOOPBACK ((u_long)0x7f000001) - -/* Varargs stuff... */ -#include <stdarg.h> -#define VA_DOTDOTDOT ... -#define va_dcl -#define VA_start(list, last) va_start (list, last) - -#ifndef _PATH_DHCPD_PID -#define _PATH_DHCPD_PID "/etc/dhcpd.pid" -#endif - -#define EOL '\n' -#define VOIDPTR void * - -/* Time stuff... */ -#include <sys/time.h> -#define TIME time_t -#define GET_TIME(x) time ((x)) -#define TIME_DIFF(high, low) (*(high) - *(low)) -#define SET_TIME(x, y) (*(x) = (y)) -#define ADD_TIME(d, s1, s2) (*(d) = *(s1) + *(s2)) -#define SET_MAX_TIME(x) (*(x) = INT_MAX) - -typedef unsigned char u_int8_t; -typedef unsigned short u_int16_t; -typedef unsigned long u_int32_t; -typedef signed short int16_t; -typedef signed long int32_t; - -#define strcasecmp( s1, s2 ) stricmp( s1, s2 ) -#define strncasecmp( s1, s2, n ) strnicmp( s1, s2, n ) -#define vsnprintf( buf, size, fmt, list ) vsprintf( buf, fbuf, list ) -#define random() rand() - -#define HAVE_SA_LEN -#define BROKEN_TM_GMT -#define USE_SOCKETS -#define NO_SNPRINTF -#undef AF_LINK - -/* - NOTE: to get the routing of the 255.255.255.255 broadcasts to work - under QNX, you need to issue the following command before starting - the daemon: - - route add -interface 255.255.255.0 <hostname> - - where <hostname> is replaced by the hostname or IP number of the - machine that dhcpd is running on. -*/ diff --git a/includes/cf/sample.h b/includes/cf/sample.h deleted file mode 100644 index 8fe45f4b..00000000 --- a/includes/cf/sample.h +++ /dev/null @@ -1,292 +0,0 @@ -/* sample.h - - Sample config file for clients. - - This file is provided as a sample in case the system you want to run - on is not currently supported. If that is the case, follow the Porting:: - comments here and in other files as guides for what to change. */ - -/* - * Copyright (c) 1996 The Internet Software Consortium. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, - * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL - * INTERNET SOFTWARE CONSORTIUM OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED - * OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -/* Porting:: - - Some systems do not define basic integer types as shown below. - On some systems, you need to include <bitypes.h> or <sys/bitypes.h>. - If you get parse errors in dhcpd.h while compiling dhcpd.conf, try - including bitypes.h, and if that fails, use the hard-coded definitions - shown below. */ - -#if 0 -#include <sys/bitypes.h> -#endif - -#if 0 -#define int8_t char -#define int16_t short -#define int32_t long - -#define u_int8_t unsigned char -#define u_int16_t unsigned short -#define u_int32_t unsigned long -#endif - -#include <sys/types.h> - -/* Porting:: - - The jmp_buf type as declared in <setjmp.h> is sometimes a structure - and sometimes an array. By default, we assume it's a structure. - If it's an array on your system, you may get compile warnings or errors - as a result in confpars.c. If so, try including the following definitions, - which treat jmp_buf as an array: */ - -#if 0 -#define jbp_decl(x) jmp_buf x -#define jref(x) (x) -#define jdref(x) (x) -#define jrefproto jmp_buf -#endif - -/* Porting:: - - Some older systems (e.g., Ultrix) still use the 4.2BSD-style syslog - API. These differ from later versions of the syslog API in that the - openlog system call takes two arguments instead of three, and the - facility code (the third argument to modern versions of openlog()) - is ORed into the log priority in the syslog() call. - - If you are running with the 4.2BSD-style syslog interface, define - SYSLOG_4_2. */ - -/* #define SYSLOG_4_2 */ - -#include <syslog.h> - -#include <string.h> -#include <errno.h> -#include <unistd.h> -#include <sys/wait.h> -#include <signal.h> -#include <setjmp.h> -#include <limits.h> - -extern int h_errno; - -#include <net/if.h> -#include <net/if_arp.h> - -/* Porting:: - - Some older systems do not have defines for IP type-of-service, - or don't define them the way we expect. If you get undefined - symbol errors on the following symbols, they probably need to be - defined here. */ - -#if 0 -#define IPTOS_LOWDELAY 0x10 -#define IPTOS_THROUGHPUT 0x08 -#define IPTOS_RELIABILITY 0x04 -#endif - -/* Porting:: - - Newer BSD derivatives store non-permanent daemon files in a - directory called /var/run. If your system has a /var/run, - use it; otherwise, use /etc. */ - -#ifndef _PATH_DHCPD_PID -#define _PATH_DHCPD_PID "/etc/dhcpd.pid" -#endif - -/* Porting:: - - If your system supports standard ANSI C, it should provide the file - /usr/include/stdarg.h. This contains the ANSI standard declarations - for functions which take a variable number of arguments. - - Older systems with non-ANSI compilers cannot support this interface, - and generally use the older varargs interface, defined in <varargs.h>. - Some systems only support varargs, but define the interface in - <stdarg.h> anyway. - - You must choose one of the two sets of definitions below. Try - stdarg.h first, unless you know it won't work. If you have - trouble compiling errwarn.c, try switching to the varargs.h definitions. - If that fails, try using stdarg.h with the varargs definitions. */ - -#if 0 -/* Stdarg definitions for ANSI-compliant C compilers. */ -#include <stdarg.h> -#define VA_DOTDOTDOT ... -#define VA_start(list, last) va_start (list, last) -#define va_dcl -#endif - -#if 0 -/* Varargs definitions, for non-ANSI-compliant C compilers. */ -#include <varargs.h> -#define VA_DOTDOTDOT va_alist -#define VA_start(list, last) va_start (list) -#endif - -/* Porting:: - - Some systems (notably 4.4BSD derivatives) support versions of the - sprintf functions which will deposit a limited number of characters - into the buffer; that limit is provided in an extra argument. - If your system doesn't support this functionality, you must include - the definitions below: */ - -#if 0 -#define vsnprintf(buf, size, fmt, list) vsprintf (buf, fmt, list) -#define NO_SNPRINTF -#endif - -/* Porting:: - - Some systems provide a function, strerror(), which takes the unix - error number (see errno) and returns a pointer to a static buffer - containing the corresponding error message. - - If your system doesn't provide strerror(), define NO_STRERROR - as shown below: */ - -#if 0 -#define NO_STRERROR -char *strerror PROTO ((int)); -#endif - -/* Porting:: - - Once dhcpd has initialized itself, it loops forever waiting for - packets to come in. Since we need to support multiple input streams - in order to support multiple interfaces, dhcpd needs to be able to - do a syscall to determine which descriptors have input waiting on - them. - - Normally, dhcpd uses the select() system call, which is a 4.2BSD - syscall invented precisely for this purpose. Unfortunately, some - System V-based systems do not support select() properly when it - operates on streams. The System V interface which does (largely) - the same thing as select is called poll(). In some cases, this may - work better than select() - if you find that dhcpd is hanging and not - responding to packets very consistently, you might try defining - USE_POLL and including <poll.h>. */ - -#if 0 -#define USE_POLL -#include <poll.h> -#endif - -/* Porting:: - - You must define the default network API for your port. This - will depend on whether one of the existing APIs will work for - you, or whether you need to implement support for a new API. - Currently, the following APIs are supported: - - The BSD socket API: define USE_SOCKETS. - The Berkeley Packet Filter: define USE_BPF. - The Streams Network Interface Tap (NIT): define USE_NIT. - Raw sockets: define USE_RAW_SOCKETS - - If your system supports the BSD socket API and doesn't provide - one of the supported interfaces to the physical packet layer, - you can either provide support for the low-level API that your - system does support (if any) or just use the BSD socket interface. - The BSD socket interface doesn't support multiple network interfaces, - and on many systems, it does not support the all-ones broadcast - address, which can cause problems with some DHCP clients (e.g. - Microsoft Windows 95). */ - -#if defined (USE_DEFAULT_NETWORK) -# define USE_SOCKETS -#endif - -/* Porting:: - - Recent versions of BSD added a new element to the sockaddr structure: - sa_len. This indicates the length of the structure, and is used - in a variety of places, not the least of which is the SIOCGIFCONF - ioctl, which is used to figure out what interfaces are attached to - the system. - - You should be able to determine if your system has an sa_len element - by looking at the struct sockaddr definition in /usr/include/sys/socket.h. - If it does, you must define HAVE_SA_LEN. Otherwise, you must not. - The most obvious symptom that you've got this wrong is either a compile - error complaining about the use of the sa_len structure element, or - the failure of dhcpd to find any interfaces. */ - -/* #define HAVE_SA_LEN */ - -/* Every operating system has its own way of seperating lines in a - sequential text file. Most modern systems use a single character, - either an ASCII Newline (10) or an ASCII Carriage Return (13). - - The most notable exception is MS-DOS (and consequently, Windows), - which uses an ASCII Carriage Return followed by a Newline to - seperate each line. Fortunately, MS-DOS C compiler libraries - typically hide this from the programmer, returning just a Newline. - - Define EOL to be whatever getc() returns for a newline. */ - -#define EOL '\n' - -/* Some older C compilers don't support the void pointer type. - ANSI C defines void * to be a pointer type that matches - any other pointer type. This is handy for returning a pointer - which will always need to be cast to a different value. For - example, malloc() on an ANSI C-compliant system returns void *. - - If your compiler doesn't support void pointers, you may need to - define VOIDPTR to be char *; otherwise, define it to be void *. */ - -#define VOIDPTR void * - -/* Porting:: - - The following definitions for time should work on any unix machine. - They may not work (or at least, may not work well) on a variety of - non-unix machines. If you are porting to a non-unix machine, you - probably need to change the definitions below and perhaps include - different headers. - - I should note that dhcpd is not yet entirely clean of unix-specific - time references, so the list of defines shown below probably isn't - good enough if you're porting to a system that really doesn't support - unix time. It's probably a reasonable place to start, though. */ - -#include <time.h> - -#define TIME time_t -#define GET_TIME(x) time ((x)) diff --git a/includes/cf/sco.h b/includes/cf/sco.h deleted file mode 100644 index d839f974..00000000 --- a/includes/cf/sco.h +++ /dev/null @@ -1,112 +0,0 @@ -/* sco.h - - System dependencies for SCO ODT 3.0... - - Based on changes contributed by Gerald Rosenberg. */ - -/* - * Copyright (c) 1996 The Internet Software Consortium. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, - * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL - * THE INTERNET SOFTWARE CONSORTIUM OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED - * OF THE POSSIBILITY OF SUCH DAMAGE. - * - * This software was written for the Internet Software Consortium by Ted Lemon - * under a contract with Vixie Laboratories. - */ - -#include <syslog.h> -#include <sys/types.h> - -/* Basic Integer Types not defined in SCO headers... */ - -typedef char int8_t; -typedef short int16_t; -typedef long int32_t; - -typedef unsigned char u_int8_t; -typedef unsigned short u_int16_t; -typedef unsigned long u_int32_t; - -#include <string.h> -#include <errno.h> -#include <unistd.h> -#include <sys/wait.h> -#include <signal.h> -#include <setjmp.h> -#include <limits.h> - -extern int h_errno; - -#include <net/if.h> -#include <net/if_arp.h> - -/* XXX dunno if this is required for SCO... */ -/* - * Definitions for IP type of service (ip_tos) - */ -#define IPTOS_LOWDELAY 0x10 -#define IPTOS_THROUGHPUT 0x08 -#define IPTOS_RELIABILITY 0x04 -/* IPTOS_LOWCOST 0x02 XXX */ - -/* SCO doesn't have /var/run. */ -#ifndef _PATH_DHCPD_PID -#define _PATH_DHCPD_PID "/etc/dhcpd.pid" -#endif - -#define INADDR_LOOPBACK ((u_int32_t)0x7f000001) - -/* Varargs stuff: use stdarg.h instead ... */ -#include <stdarg.h> -#define VA_DOTDOTDOT ... -#define VA_start(list, last) va_start (list, last) -#define va_dcl - -/* SCO doesn't support limited sprintfs. */ -#define vsnprintf(buf, size, fmt, list) vsprintf (buf, fmt, list) -#define NO_SNPRINTF - -/* By default, use BSD Socket API for receiving and sending packets. - This actually works pretty well on Solaris, which doesn't censor - the all-ones broadcast address. */ -#if defined (USE_DEFAULT_NETWORK) -# define USE_SOCKETS -#endif - -#define EOL '\n' -#define VOIDPTR void * - -/* - * Time stuff... - * - * Definitions for an ISC DHCPD system that uses time_t - * to represent time internally as opposed to, for example, struct timeval.) - */ - -#include <time.h> - -#define TIME time_t -#define GET_TIME(x) time ((x)) diff --git a/includes/cf/sunos4.h b/includes/cf/sunos4.h deleted file mode 100644 index dc7743ea..00000000 --- a/includes/cf/sunos4.h +++ /dev/null @@ -1,134 +0,0 @@ -/* sunos4.h - - System dependencies for SunOS 4 (tested on 4.1.4)... */ - -/* - * Copyright (c) 1996 The Internet Software Consortium. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, - * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL - * THE INTERNET SOFTWARE CONSORTIUM OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED - * OF THE POSSIBILITY OF SUCH DAMAGE. - * - * This software was written for the Internet Software Consortium by Ted Lemon - * under a contract with Vixie Laboratories. - */ - -/* Basic Integer Types not defined in SunOS headers... */ - -#define int8_t char -#define int16_t short -#define int32_t int - -#define u_int8_t unsigned char -#define u_int16_t unsigned short -#define u_int32_t unsigned int - -/* No endian.h either. */ -/* - * Definitions for byte order, according to byte significance from low - * address to high. - */ -#define LITTLE_ENDIAN 1234 /* LSB first: i386, vax */ -#define BIG_ENDIAN 4321 /* MSB first: 68000, ibm, net */ -#define PDP_ENDIAN 3412 /* LSB first in word, MSW first in long */ - -#define BYTE_ORDER BIG_ENDIAN - -/* The jmp_buf type is an array on SunOS, so we can't dereference it - and must declare it differently. */ -#define jbp_decl(x) jmp_buf x -#define jref(x) (x) -#define jdref(x) (x) -#define jrefproto jmp_buf - -#include <syslog.h> -#include <sys/types.h> - -#include <string.h> -#include <errno.h> -#include <unistd.h> -#include <sys/wait.h> -#include <signal.h> -#include <setjmp.h> -#include <limits.h> -#include <poll.h> - -extern int h_errno; - -#include <net/if.h> -#include <net/if_arp.h> - -/* - * Definitions for IP type of service (ip_tos) - */ -#define IPTOS_LOWDELAY 0x10 -#define IPTOS_THROUGHPUT 0x08 -#define IPTOS_RELIABILITY 0x04 -/* IPTOS_LOWCOST 0x02 XXX */ - -/* SunOS systems don't have /var/run, but some sites have added it. - If you want to put dhcpd.pid in /var/run, define _PATH_DHCPD_PID - in site.h. */ -#ifndef _PATH_DHCPD_PID -#define _PATH_DHCPD_PID "/etc/dhcpd.pid" -#endif - -#ifdef __GNUC__ -/* Varargs stuff: use stdarg.h instead ... */ -#include <stdarg.h> -#define VA_DOTDOTDOT ... -#define VA_start(list, last) va_start (list, last) -#define va_dcl -#else /* !__GNUC__*/ -/* Varargs stuff... */ -#include <varargs.h> -#define VA_DOTDOTDOT va_alist -#define VA_start(list, last) va_start (list) -#endif /* !__GNUC__*/ - -/* SunOS doesn't support limited sprintfs. */ -#define vsnprintf(buf, size, fmt, list) vsprintf (buf, fmt, list) -#define NO_SNPRINTF - -/* SunOS doesn't supply strerror... */ -#define NO_STRERROR -char *strerror PROTO ((int)); - -/* SunOS select() doesn't work on streams, so we have to use poll - - as usual, SysV can't do networking to save its life. */ -#define USE_POLL - -/* By default, use NIT API for receiving and sending packets... */ -#if defined (USE_DEFAULT_NETWORK) -# define USE_NIT -#endif - -#define EOL '\n' -#define VOIDPTR void * - -#include <time.h> - -#define TIME time_t -#define GET_TIME(x) time ((x)) diff --git a/includes/cf/sunos5-5.h b/includes/cf/sunos5-5.h deleted file mode 100644 index e7cdea62..00000000 --- a/includes/cf/sunos5-5.h +++ /dev/null @@ -1,124 +0,0 @@ -/* sunos5-5.h - - System dependencies for Solaris 2.x (tested on 2.5 with gcc)... */ - -/* - * Copyright (c) 1996 The Internet Software Consortium. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, - * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL - * THE INTERNET SOFTWARE CONSORTIUM OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED - * OF THE POSSIBILITY OF SUCH DAMAGE. - * - * This software was written for the Internet Software Consortium by Ted Lemon - * under a contract with Vixie Laboratories. - */ - -/* Basic Integer Types not defined in SunOS headers... */ - -#define int8_t char -#define int16_t short -#define int32_t long - -#define u_int8_t unsigned char -#define u_int16_t unsigned short -#define u_int32_t unsigned long - -/* The jmp_buf type is an array on Solaris, so we can't dereference it - and must declare it differently. */ - -#define jbp_decl(x) jmp_buf x -#define jref(x) (x) -#define jdref(x) (x) -#define jrefproto jmp_buf - -#include <syslog.h> -#include <sys/types.h> -#include <sys/sockio.h> - -#include <string.h> -#include <errno.h> -#include <unistd.h> -#include <sys/wait.h> -#include <signal.h> -#include <setjmp.h> -#include <limits.h> - -extern int h_errno; - -#include <net/if.h> -#include <net/if_arp.h> - -/* - * Definitions for IP type of service (ip_tos) - */ -#define IPTOS_LOWDELAY 0x10 -#define IPTOS_THROUGHPUT 0x08 -#define IPTOS_RELIABILITY 0x04 -/* IPTOS_LOWCOST 0x02 XXX */ - -/* Solaris systems don't have /var/run, but some sites have added it. - If you want to put dhcpd.pid in /var/run, define _PATH_DHCPD_PID - in site.h. */ -#ifndef _PATH_DHCPD_PID -#define _PATH_DHCPD_PID "/etc/dhcpd.pid" -#endif - -#if defined (__GNUC__) || defined (__SVR4) -/* Varargs stuff: use stdarg.h instead ... */ -#include <stdarg.h> -#define VA_DOTDOTDOT ... -#define VA_start(list, last) va_start (list, last) -#define va_dcl -#else /* !__GNUC__*/ -/* Varargs stuff... */ -#include <varargs.h> -#define VA_DOTDOTDOT va_alist -#define VA_start(list, last) va_start (list) -#endif /* !__GNUC__*/ - -/* Solaris doesn't support limited sprintfs. */ -#define vsnprintf(buf, size, fmt, list) vsprintf (buf, fmt, list) -#define NO_SNPRINTF - -/* By default, use BSD Socket API for receiving and sending packets. - This actually works pretty well on Solaris, which doesn't censor - the all-ones broadcast address. */ -#if defined (USE_DEFAULT_NETWORK) -# define USE_SOCKETS -#endif - -#define USE_POLL - -#define EOL '\n' -#define VOIDPTR void * - -/* Time stuff... */ - -#include <time.h> - -#define TIME time_t -#define GET_TIME(x) time ((x)) - -#define random() rand() diff --git a/includes/cf/ultrix.h b/includes/cf/ultrix.h deleted file mode 100644 index 2c881b96..00000000 --- a/includes/cf/ultrix.h +++ /dev/null @@ -1,100 +0,0 @@ -/* ultrix.h - - System dependencies for Ultrix 4.2 (tested on 4.2a+multicast)... */ - -/* - * Copyright (c) 1996 The Internet Software Consortium. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, - * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL - * THE INTERNET SOFTWARE CONSORTIUM OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED - * OF THE POSSIBILITY OF SUCH DAMAGE. - * - * This software was written for the Internet Software Consortium by Ted Lemon - * under a contract with Vixie Laboratories. - */ - -/* Ultrix uses the old 4.2BSD-style syslog(). */ -#include <sys/syslog.h> -#define SYSLOG_4_2 - -#include <sys/types.h> -#include <string.h> -#include <errno.h> -#include <unistd.h> -#include <sys/wait.h> -#include <signal.h> -#include <setjmp.h> -#include <limits.h> - -extern int h_errno; - -#include <net/if.h> - -#ifndef _PATH_DHCPD_PID -#define _PATH_DHCPD_PID "/etc/dhcpd.pid" -#endif - -#define int8_t char -#define int16_t short -#define int32_t long - -#define u_int8_t unsigned char /* Not quite POSIX... */ -#define u_int16_t unsigned short -#define u_int32_t unsigned long - -/* The jmp_buf type is an array on ultrix, so we can't dereference it - and must declare it differently. */ -#define jbp_decl(x) jmp_buf x -#define jref(x) (x) -#define jdref(x) (x) -#define jrefproto jmp_buf - -#define IPTOS_LOWDELAY 0x10 -/* IPTOS_LOWCOST 0x02 XXX */ - -/* Varargs stuff... */ -#include <varargs.h> -#define VA_DOTDOTDOT va_alist -#define VA_start(list, last) va_start (list) -#define vsnprintf(buf, size, fmt, list) vsprintf (buf, fmt, list) -#define NO_SNPRINTF - -#define INADDR_LOOPBACK ((u_int32_t)0x7f000001) -#define EOL '\n' -#define VOIDPTR void * - -/* - * Time stuff... - * - * Definitions for an ISC DHCPD system that uses time_t - * to represent time internally as opposed to, for example, struct timeval.) - */ - -#define TIME time_t -#define GET_TIME(x) time ((x)) - -#if defined (USE_DEFAULT_NETWORK) -# define USE_SOCKETS -#endif diff --git a/includes/dhcp.h b/includes/dhcp.h deleted file mode 100644 index 23a8bf73..00000000 --- a/includes/dhcp.h +++ /dev/null @@ -1,166 +0,0 @@ -/* dhcp.h - - Protocol structures... */ - -/* - * Copyright (c) 1995, 1996 The Internet Software Consortium. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names - * of its contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This software has been written for the Internet Software Consortium - * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie - * Enterprises. To learn more about the Internet Software Consortium, - * see ``http://www.vix.com/isc''. To learn more about Vixie - * Enterprises, see ``http://www.vix.com''. - */ - -#define DHCP_UDP_OVERHEAD (14 + /* Ethernet header */ \ - 20 + /* IP header */ \ - 8) /* UDP header */ -#define DHCP_SNAME_LEN 64 -#define DHCP_FILE_LEN 128 -#define DHCP_FIXED_NON_UDP 236 -#define DHCP_FIXED_LEN (DHCP_FIXED_NON_UDP + DHCP_UDP_OVERHEAD) - /* Everything but options. */ -#define DHCP_MTU_MAX 1500 -#define DHCP_OPTION_LEN (DHCP_MTU_MAX - DHCP_FIXED_LEN) - -#define BOOTP_MIN_LEN 300 - -struct dhcp_packet { - u_int8_t op; /* Message opcode/type */ - u_int8_t htype; /* Hardware addr type (see net/if_types.h) */ - u_int8_t hlen; /* Hardware addr length */ - u_int8_t hops; /* Number of relay agent hops from client */ - u_int32_t xid; /* Transaction ID */ - u_int16_t secs; /* Seconds since client started looking */ - u_int16_t flags; /* Flag bits */ - struct in_addr ciaddr; /* Client IP address (if already in use) */ - struct in_addr yiaddr; /* Client IP address */ - struct in_addr siaddr; /* IP address of next server to talk to */ - struct in_addr giaddr; /* DHCP relay agent IP address */ - unsigned char chaddr [16]; /* Client hardware address */ - char sname [DHCP_SNAME_LEN]; /* Server name */ - char file [DHCP_FILE_LEN]; /* Boot filename */ - unsigned char options [DHCP_OPTION_LEN]; - /* Optional parameters - (actual length dependent on MTU). */ -}; - -/* BOOTP (rfc951) message types */ -#define BOOTREQUEST 1 -#define BOOTREPLY 2 - -/* Possible values for flags field... */ -#define BOOTP_BROADCAST 32768L - -/* Possible values for hardware type (htype) field... */ -#define HTYPE_ETHER 1 /* Ethernet 10Mbps */ -#define HTYPE_IEEE802 6 /* IEEE 802.2 Token Ring... */ - -/* Magic cookie validating dhcp options field (and bootp vendor - extensions field). */ -#define DHCP_OPTIONS_COOKIE "\143\202\123\143" - -/* DHCP Option codes: */ - -#define DHO_PAD 0 -#define DHO_SUBNET_MASK 1 -#define DHO_TIME_OFFSET 2 -#define DHO_ROUTERS 3 -#define DHO_TIME_SERVERS 4 -#define DHO_NAME_SERVERS 5 -#define DHO_DOMAIN_NAME_SERVERS 6 -#define DHO_LOG_SERVERS 7 -#define DHO_COOKIE_SERVERS 8 -#define DHO_LPR_SERVERS 9 -#define DHO_IMPRESS_SERVERS 10 -#define DHO_RESOURCE_LOCATION_SERVERS 11 -#define DHO_HOST_NAME 12 -#define DHO_BOOT_SIZE 13 -#define DHO_MERIT_DUMP 14 -#define DHO_DOMAIN_NAME 15 -#define DHO_SWAP_SERVER 16 -#define DHO_ROOT_PATH 17 -#define DHO_EXTENSIONS_PATH 18 -#define DHO_IP_FORWARDING 19 -#define DHO_NON_LOCAL_SOURCE_ROUTING 20 -#define DHO_POLICY_FILTER 21 -#define DHO_MAX_DGRAM_REASSEMBLY 22 -#define DHO_DEFAULT_IP_TTL 23 -#define DHO_PATH_MTU_AGING_TIMEOUT 24 -#define DHO_PATH_MTU_PLATEAU_TABLE 25 -#define DHO_INTERFACE_MTU 26 -#define DHO_ALL_SUBNETS_LOCAL 27 -#define DHO_BROADCAST_ADDRESS 28 -#define DHO_PERFORM_MASK_DISCOVERY 29 -#define DHO_MASK_SUPPLIER 30 -#define DHO_ROUTER_DISCOVERY 31 -#define DHO_ROUTER_SOLICITATION_ADDRESS 32 -#define DHO_STATIC_ROUTES 33 -#define DHO_TRAILER_ENCAPSULATION 34 -#define DHO_ARP_CACHE_TIMEOUT 35 -#define DHO_IEEE802_3_ENCAPSULATION 36 -#define DHO_DEFAULT_TCP_TTL 37 -#define DHO_TCP_KEEPALIVE_INTERVAL 38 -#define DHO_TCP_KEEPALIVE_GARBAGE 39 -#define DHO_NIS_DOMAIN 40 -#define DHO_NIS_SERVERS 41 -#define DHO_NTP_SERVERS 42 -#define DHO_VENDOR_ENCAPSULATED_OPTIONS 43 -#define DHO_NETBIOS_NAME_SERVERS 44 -#define DHO_NETBIOS_DD_SERVER 45 -#define DHO_NETBIOS_NODE_TYPE 46 -#define DHO_NETBIOS_SCOPE 47 -#define DHO_FONT_SERVERS 48 -#define DHO_X_DISPLAY_MANAGER 49 -#define DHO_DHCP_REQUESTED_ADDRESS 50 -#define DHO_DHCP_LEASE_TIME 51 -#define DHO_DHCP_OPTION_OVERLOAD 52 -#define DHO_DHCP_MESSAGE_TYPE 53 -#define DHO_DHCP_SERVER_IDENTIFIER 54 -#define DHO_DHCP_PARAMETER_REQUEST_LIST 55 -#define DHO_DHCP_MESSAGE 56 -#define DHO_DHCP_MAX_MESSAGE_SIZE 57 -#define DHO_DHCP_RENEWAL_TIME 58 -#define DHO_DHCP_REBINDING_TIME 59 -#define DHO_DHCP_CLASS_IDENTIFIER 60 -#define DHO_DHCP_CLIENT_IDENTIFIER 61 -#define DHO_DHCP_USER_CLASS_ID 77 -#define DHO_END 255 - -/* DHCP message types. */ -#define DHCPDISCOVER 1 -#define DHCPOFFER 2 -#define DHCPREQUEST 3 -#define DHCPDECLINE 4 -#define DHCPACK 5 -#define DHCPNAK 6 -#define DHCPRELEASE 7 -#define DHCPINFORM 8 diff --git a/includes/dhcpd.h b/includes/dhcpd.h deleted file mode 100644 index 34aed0b5..00000000 --- a/includes/dhcpd.h +++ /dev/null @@ -1,586 +0,0 @@ -/* dhcpd.h - - Definitions for dhcpd... */ - -/* - * Copyright (c) 1995, 1996 The Internet Software Consortium. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names - * of its contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This software has been written for the Internet Software Consortium - * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie - * Enterprises. To learn more about the Internet Software Consortium, - * see ``http://www.vix.com/isc''. To learn more about Vixie - * Enterprises, see ``http://www.vix.com''. - */ - -#include <sys/types.h> -#include <netinet/in.h> -#include <sys/socket.h> -#include <arpa/inet.h> -#include <netdb.h> -#include <fcntl.h> -#include <stdio.h> -#include <unistd.h> -#include <string.h> -#include <stdlib.h> -#include <sys/stat.h> -#include <ctype.h> -#include <time.h> - -#include "cdefs.h" -#include "osdep.h" -#include "dhcp.h" -#include "tree.h" -#include "hash.h" -#include "inet.h" - -/* A dhcp packet and the pointers to its option values. */ -struct packet { - struct dhcp_packet *raw; - int packet_length; - int packet_type; - int options_valid; - int client_port; - struct iaddr client_addr; - struct interface_info *interface; /* Interface on which packet - was received. */ - struct hardware *haddr; /* Physical link address - of local sender (maybe gateway). */ - struct shared_network *shared_network; - struct { - int len; - unsigned char *data; - } options [256]; -}; - -struct hardware { - u_int8_t htype; - u_int8_t hlen; - u_int8_t haddr [16]; -}; - -/* A dhcp lease declaration structure. */ -struct lease { - struct lease *next; - struct lease *prev; - struct lease *n_uid, *n_hw; - struct iaddr ip_addr; - TIME starts, ends, timestamp; - TIME offered_expiry; - unsigned char *uid; - int uid_len; - char *hostname; - struct host_decl *host; - struct subnet *subnet; - struct shared_network *shared_network; - struct hardware hardware_addr; - int state; - int xid; - int flags; -# define STATIC_LEASE 1 -# define BOOTP_LEASE 2 -# define DYNAMIC_BOOTP_OK 4 -# define PERSISTENT_FLAGS (DYNAMIC_BOOTP_OK) -# define EPHEMERAL_FLAGS (BOOTP_LEASE) -}; - -#define ROOT_GROUP 0 -#define HOST_DECL 1 -#define SHARED_NET_DECL 2 -#define SUBNET_DECL 3 -#define CLASS_DECL 4 -#define GROUP_DECL 5 - -/* Group of declarations that share common parameters. */ -struct group { - struct group *next; - - struct subnet *subnet; - struct shared_network *shared_network; - - TIME default_lease_time; - TIME max_lease_time; - TIME bootp_lease_cutoff; - TIME bootp_lease_length; - - char *filename; - char *server_name; - struct iaddr next_server; - - int boot_unknown_clients; - int dynamic_bootp; - int one_lease_per_client; - int get_lease_hostnames; - int use_host_decl_names; - - struct tree_cache *options [256]; -}; - -/* A dhcp host declaration structure. */ -struct host_decl { - struct host_decl *n_ipaddr; - char *name; - struct hardware interface; - struct tree_cache *fixed_addr; - struct group *group; -}; - -struct shared_network { - struct shared_network *next; - char *name; - struct subnet *subnets; - struct interface_info *interface; - struct lease *leases; - struct lease *insertion_point; - struct lease *last_lease; - - struct group *group; -}; - -struct subnet { - struct subnet *next_subnet; - struct subnet *next_sibling; - struct shared_network *shared_network; - struct interface_info *interface; - struct iaddr interface_address; - struct iaddr net; - struct iaddr netmask; - - struct group *group; -}; - -struct class { - char *name; - - struct group *group; -}; - -/* Information about each network interface. */ - -struct interface_info { - struct interface_info *next; /* Next interface in list... */ - struct shared_network *shared_network; - /* Networks connected to this interface. */ - struct hardware hw_address; /* Its physical address. */ - char name [IFNAMSIZ]; /* Its name... */ - int rfdesc; /* Its read file descriptor. */ - int wfdesc; /* Its write file descriptor, if - different. */ - unsigned char *rbuf; /* Read buffer, if required. */ - size_t rbuf_max; /* Size of read buffer. */ - size_t rbuf_offset; /* Current offset into buffer. */ - size_t rbuf_len; /* Length of data in buffer. */ - - struct ifreq *tif; /* Temp. pointer to ifreq struct. */ - u_int32_t flags; /* Control flags... */ -#define INTERFACE_REQUESTED 1 -}; - -struct hardware_link { - struct hardware_link *next; - char name [IFNAMSIZ]; - struct hardware address; -}; - -/* Bitmask of dhcp option codes. */ -typedef unsigned char option_mask [16]; - -/* DHCP Option mask manipulation macros... */ -#define OPTION_ZERO(mask) (memset (mask, 0, 16)) -#define OPTION_SET(mask, bit) (mask [bit >> 8] |= (1 << (bit & 7))) -#define OPTION_CLR(mask, bit) (mask [bit >> 8] &= ~(1 << (bit & 7))) -#define OPTION_ISSET(mask, bit) (mask [bit >> 8] & (1 << (bit & 7))) -#define OPTION_ISCLR(mask, bit) (!OPTION_ISSET (mask, bit)) - -/* An option occupies its length plus two header bytes (code and - length) for every 255 bytes that must be stored. */ -#define OPTION_SPACE(x) ((x) + 2 * ((x) / 255 + 1)) - -/* Default path to dhcpd config file. */ -#ifdef DEBUG -#undef _PATH_DHCPD_CONF -#define _PATH_DHCPD_CONF "dhcpd.conf" -#undef _PATH_DHCPD_DB -#define _PATH_DHCPD_DB "dhcpd.leases" -#else -#ifndef _PATH_DHCPD_CONF -#define _PATH_DHCPD_CONF "/etc/dhcpd.conf" -#endif - -#ifndef _PATH_DHCPD_DB -#define _PATH_DHCPD_DB "/etc/dhcpd.leases" -#endif - -#ifndef _PATH_DHCPD_PID -#define _PATH_DHCPD_PID "/var/run/dhcpd.pid" -#endif -#endif - -#ifndef DHCPD_LOG_FACILITY -#define DHCPD_LOG_FACILITY LOG_DAEMON -#endif - -#define MAX_TIME 0x7fffffff -#define MIN_TIME 0 - -/* External definitions... */ - -/* options.c */ - -void parse_options PROTO ((struct packet *)); -void parse_option_buffer PROTO ((struct packet *, unsigned char *, int)); -void cons_options PROTO ((struct packet *, struct packet *, - struct tree_cache **, int, int)); -int store_options PROTO ((unsigned char *, int, struct tree_cache **, - unsigned char *, int, int, int, int)); -char *pretty_print_option PROTO ((unsigned char, unsigned char *, int)); - -/* errwarn.c */ -extern int warnings_occurred; -void error PROTO ((char *, ...)); -int warn PROTO ((char *, ...)); -int note PROTO ((char *, ...)); -int debug PROTO ((char *, ...)); -int parse_warn PROTO ((char *, ...)); - -/* dhcpd.c */ -extern TIME cur_time; -extern struct group root_group; - -extern struct iaddr server_identifier; -extern int server_identifier_matched; - -extern u_int16_t server_port; -extern int log_priority; -extern int log_perror; - -#ifdef USE_FALLBACK -extern struct interface_info fallback_interface; -#endif - -extern char *path_dhcpd_conf; -extern char *path_dhcpd_db; -extern char *path_dhcpd_pid; - -int main PROTO ((int, char **, char **)); -void cleanup PROTO ((void)); - -/* conflex.c */ -extern int lexline, lexchar; -extern char *token_line, *tlname; -extern char comments [4096]; -extern int comment_index; -void new_parse PROTO ((char *)); -int next_token PROTO ((char **, FILE *)); -int peek_token PROTO ((char **, FILE *)); - -/* confpars.c */ -int readconf PROTO ((void)); -void read_leases PROTO ((void)); -int parse_statement PROTO ((FILE *, - struct group *, int, struct host_decl *, int)); -void skip_to_semi PROTO ((FILE *)); -int parse_boolean PROTO ((FILE *)); -int parse_semi PROTO ((FILE *)); -int parse_lbrace PROTO ((FILE *)); -void parse_host_declaration PROTO ((FILE *, struct group *)); -char *parse_host_name PROTO ((FILE *)); -void parse_class_declaration PROTO ((FILE *, struct group *, int)); -void parse_lease_time PROTO ((FILE *, TIME *)); -void parse_shared_net_declaration PROTO ((FILE *, struct group *)); -void parse_subnet_declaration PROTO ((FILE *, struct shared_network *)); -void parse_group_declaration PROTO ((FILE *, struct group *)); -void parse_hardware_param PROTO ((FILE *, struct hardware *)); -char *parse_string PROTO ((FILE *)); -struct tree *parse_ip_addr_or_hostname PROTO ((FILE *, int)); -struct tree_cache *parse_fixed_addr_param PROTO ((FILE *)); -void parse_option_param PROTO ((FILE *, struct group *)); -TIME parse_timestamp PROTO ((FILE *)); -struct lease *parse_lease_declaration PROTO ((FILE *)); -void parse_address_range PROTO ((FILE *, struct subnet *)); -TIME parse_date PROTO ((FILE *)); -unsigned char *parse_numeric_aggregate PROTO ((FILE *, - unsigned char *, int *, - int, int, int)); -void convert_num PROTO ((unsigned char *, char *, int, int)); - -/* tree.c */ -pair cons PROTO ((caddr_t, pair)); -struct tree_cache *tree_cache PROTO ((struct tree *)); -struct tree *tree_host_lookup PROTO ((char *)); -struct dns_host_entry *enter_dns_host PROTO ((char *)); -struct tree *tree_const PROTO ((unsigned char *, int)); -struct tree *tree_concat PROTO ((struct tree *, struct tree *)); -struct tree *tree_limit PROTO ((struct tree *, int)); -int tree_evaluate PROTO ((struct tree_cache *)); - -/* dhcp.c */ -void dhcp PROTO ((struct packet *)); -void dhcpdiscover PROTO ((struct packet *)); -void dhcprequest PROTO ((struct packet *)); -void dhcprelease PROTO ((struct packet *)); -void dhcpdecline PROTO ((struct packet *)); -void dhcpinform PROTO ((struct packet *)); -void nak_lease PROTO ((struct packet *, struct iaddr *cip)); -void ack_lease PROTO ((struct packet *, struct lease *, unsigned char, TIME)); -struct lease *find_lease PROTO ((struct packet *, struct shared_network *)); -struct lease *mockup_lease PROTO ((struct packet *, - struct shared_network *, - struct host_decl *)); - -/* bootp.c */ -void bootp PROTO ((struct packet *)); - -/* memory.c */ -void enter_host PROTO ((struct host_decl *)); -struct host_decl *find_hosts_by_haddr PROTO ((int, unsigned char *, int)); -struct host_decl *find_hosts_by_uid PROTO ((unsigned char *, int)); -struct subnet *find_host_for_network PROTO ((struct host_decl **, - struct iaddr *, - struct shared_network *)); -void new_address_range PROTO ((struct iaddr, struct iaddr, - struct subnet *, int)); -extern struct subnet *find_grouped_subnet PROTO ((struct shared_network *, - struct iaddr)); -extern struct subnet *find_subnet PROTO ((struct iaddr)); -void enter_shared_network PROTO ((struct shared_network *)); -void enter_subnet PROTO ((struct subnet *)); -void enter_lease PROTO ((struct lease *)); -int supersede_lease PROTO ((struct lease *, struct lease *, int)); -void release_lease PROTO ((struct lease *)); -void abandon_lease PROTO ((struct lease *)); -struct lease *find_lease_by_uid PROTO ((unsigned char *, int)); -struct lease *find_lease_by_hw_addr PROTO ((unsigned char *, int)); -struct lease *find_lease_by_ip_addr PROTO ((struct iaddr)); -void uid_hash_add PROTO ((struct lease *)); -void uid_hash_delete PROTO ((struct lease *)); -void hw_hash_add PROTO ((struct lease *)); -void hw_hash_delete PROTO ((struct lease *)); -struct class *add_class PROTO ((int, char *)); -struct class *find_class PROTO ((int, char *, int)); -struct group *clone_group PROTO ((struct group *, char *)); -void write_leases PROTO ((void)); -void dump_subnets PROTO ((void)); - -/* alloc.c */ -VOIDPTR dmalloc PROTO ((int, char *)); -void dfree PROTO ((VOIDPTR, char *)); -struct packet *new_packet PROTO ((char *)); -struct dhcp_packet *new_dhcp_packet PROTO ((char *)); -struct tree *new_tree PROTO ((char *)); -struct tree_cache *new_tree_cache PROTO ((char *)); -struct hash_table *new_hash_table PROTO ((int, char *)); -struct hash_bucket *new_hash_bucket PROTO ((char *)); -struct lease *new_lease PROTO ((char *)); -struct lease *new_leases PROTO ((int, char *)); -struct subnet *new_subnet PROTO ((char *)); -struct class *new_class PROTO ((char *)); -struct shared_network *new_shared_network PROTO ((char *)); -struct group *new_group PROTO ((char *)); -void free_group PROTO ((struct group *, char *)); -void free_shared_network PROTO ((struct shared_network *, char *)); -void free_class PROTO ((struct class *, char *)); -void free_subnet PROTO ((struct subnet *, char *)); -void free_lease PROTO ((struct lease *, char *)); -void free_hash_bucket PROTO ((struct hash_bucket *, char *)); -void free_hash_table PROTO ((struct hash_table *, char *)); -void free_tree_cache PROTO ((struct tree_cache *, char *)); -void free_packet PROTO ((struct packet *, char *)); -void free_dhcp_packet PROTO ((struct dhcp_packet *, char *)); -void free_tree PROTO ((struct tree *, char *)); - -/* print.c */ -char *print_hw_addr PROTO ((int, int, unsigned char *)); -void print_lease PROTO ((struct lease *)); -void dump_raw PROTO ((unsigned char *, int)); -void dump_packet PROTO ((struct packet *)); -void hash_dump PROTO ((struct hash_table *)); - -/* socket.c */ -#if defined (USE_SOCKET_SEND) || defined (USE_SOCKET_RECEIVE) \ - || defined (USE_SOCKET_FALLBACK) -int if_register_socket PROTO ((struct interface_info *, struct ifreq *)); -#endif - -#ifdef USE_SOCKET_FALLBACK -void if_register_fallback PROTO ((struct interface_info *, struct ifreq *)); -size_t send_fallback PROTO ((struct interface_info *, - struct packet *, struct dhcp_packet *, size_t, - struct in_addr, - struct sockaddr_in *, struct hardware *)); -size_t fallback_discard PROTO ((struct interface_info *)); -#endif - -#ifdef USE_SOCKET_SEND -void if_register_send PROTO ((struct interface_info *, struct ifreq *)); -size_t send_packet PROTO ((struct interface_info *, - struct packet *, struct dhcp_packet *, size_t, - struct in_addr, - struct sockaddr_in *, struct hardware *)); -#endif -#ifdef USE_SOCKET_RECEIVE -void if_register_receive PROTO ((struct interface_info *, struct ifreq *)); -size_t receive_packet PROTO ((struct interface_info *, - unsigned char *, size_t, - struct sockaddr_in *, struct hardware *)); -#endif - -/* bpf.c */ -#if defined (USE_BPF_SEND) || defined (USE_BPF_RECEIVE) -int if_register_bpf PROTO ( (struct interface_info *, struct ifreq *)); -#endif -#ifdef USE_BPF_SEND -void if_register_send PROTO ((struct interface_info *, struct ifreq *)); -size_t send_packet PROTO ((struct interface_info *, - struct packet *, struct dhcp_packet *, size_t, - struct in_addr, - struct sockaddr_in *, struct hardware *)); -#endif -#ifdef USE_BPF_RECEIVE -void if_register_receive PROTO ((struct interface_info *, struct ifreq *)); -size_t receive_packet PROTO ((struct interface_info *, - unsigned char *, size_t, - struct sockaddr_in *, struct hardware *)); -#endif - -/* nit.c */ -#ifdef USE_NIT_SEND -void if_register_send PROTO ((struct interface_info *, struct ifreq *)); -size_t send_packet PROTO ((struct interface_info *, - struct packet *, struct dhcp_packet *, size_t, - struct in_addr, - struct sockaddr_in *, struct hardware *)); -#endif -#ifdef USE_NIT_RECEIVE -void if_register_receive PROTO ((struct interface_info *, struct ifreq *)); -size_t receive_packet PROTO ((struct interface_info *, - unsigned char *, size_t, - struct sockaddr_in *, struct hardware *)); -#endif - -/* raw.c */ -#ifdef USE_RAW_SEND -void if_register_send PROTO ((struct interface_info *, struct ifreq *)); -size_t send_packet PROTO ((struct interface_info *, - struct packet *, struct dhcp_packet *, size_t, - struct in_addr, - struct sockaddr_in *, struct hardware *)); -#endif - -/* dispatch.c */ -extern struct interface_info *interfaces; -void discover_interfaces PROTO ((int)); -void dispatch PROTO ((void)); -void do_packet PROTO ((struct interface_info *, - unsigned char *, int, - unsigned short, struct iaddr, struct hardware *)); -int locate_network PROTO ((struct packet *)); - -/* hash.c */ -struct hash_table *new_hash PROTO ((void)); -void add_hash PROTO ((struct hash_table *, char *, int, unsigned char *)); -void delete_hash_entry PROTO ((struct hash_table *, char *, int)); -unsigned char *hash_lookup PROTO ((struct hash_table *, char *, int)); - -/* tables.c */ -extern struct option dhcp_options [256]; -extern unsigned char dhcp_option_default_priority_list []; -extern int sizeof_dhcp_option_default_priority_list; -extern char *hardware_types [256]; -extern struct hash_table universe_hash; -extern struct universe dhcp_universe; -void initialize_universes PROTO ((void)); - -/* convert.c */ -u_int32_t getULong PROTO ((unsigned char *)); -int32_t getLong PROTO ((unsigned char *)); -u_int16_t getUShort PROTO ((unsigned char *)); -int16_t getShort PROTO ((unsigned char *)); -void putULong PROTO ((unsigned char *, u_int32_t)); -void putLong PROTO ((unsigned char *, int32_t)); -void putUShort PROTO ((unsigned char *, u_int16_t)); -void putShort PROTO ((unsigned char *, int16_t)); - -/* inet.c */ -struct iaddr subnet_number PROTO ((struct iaddr, struct iaddr)); -struct iaddr ip_addr PROTO ((struct iaddr, struct iaddr, u_int32_t)); -u_int32_t host_addr PROTO ((struct iaddr, struct iaddr)); -int addr_eq PROTO ((struct iaddr, struct iaddr)); -char *piaddr PROTO ((struct iaddr)); - -/* dhclient.c */ -void dhcpoffer PROTO ((struct packet *)); -void dhcpack PROTO ((struct packet *)); -void dhcpnak PROTO ((struct packet *)); -void send_discover PROTO ((struct interface_info *)); -void send_request PROTO ((struct packet *)); - -/* db.c */ -int write_lease PROTO ((struct lease *)); -int commit_leases PROTO ((void)); -void db_startup PROTO ((void)); -void new_lease_file PROTO ((void)); - -/* packet.c */ -void assemble_hw_header PROTO ((struct interface_info *, unsigned char *, - int *, struct hardware *)); -void assemble_udp_ip_header PROTO ((struct interface_info *, unsigned char *, - int *, u_int32_t, u_int32_t, u_int16_t, - unsigned char *, int)); -size_t decode_hw_header PROTO ((struct interface_info *, unsigned char *, - int, struct hardware *)); -size_t decode_udp_ip_header PROTO ((struct interface_info *, unsigned char *, - int, struct sockaddr_in *, - unsigned char *, int)); - -/* dhxpxlt.c */ -void convert_statement PROTO ((FILE *)); -void convert_host_statement PROTO ((FILE *, jrefproto)); -void convert_host_name PROTO ((FILE *, jrefproto)); -void convert_class_statement PROTO ((FILE *, jrefproto, int)); -void convert_class_decl PROTO ((FILE *, jrefproto)); -void convert_lease_time PROTO ((FILE *, jrefproto, char *)); -void convert_shared_net_statement PROTO ((FILE *, jrefproto)); -void convert_subnet_statement PROTO ((FILE *, jrefproto)); -void convert_subnet_decl PROTO ((FILE *, jrefproto)); -void convert_host_decl PROTO ((FILE *, jrefproto)); -void convert_hardware_decl PROTO ((FILE *, jrefproto)); -void convert_hardware_addr PROTO ((FILE *, jrefproto)); -void convert_filename_decl PROTO ((FILE *, jrefproto)); -void convert_servername_decl PROTO ((FILE *, jrefproto)); -void convert_ip_addr_or_hostname PROTO ((FILE *, jrefproto, int)); -void convert_fixed_addr_decl PROTO ((FILE *, jrefproto)); -void convert_option_decl PROTO ((FILE *, jrefproto)); -void convert_timestamp PROTO ((FILE *, jrefproto)); -void convert_lease_statement PROTO ((FILE *, jrefproto)); -void convert_address_range PROTO ((FILE *, jrefproto)); -void convert_date PROTO ((FILE *, jrefproto, char *)); -void convert_numeric_aggregate PROTO ((FILE *, jrefproto, int, int, int, int)); -void indent PROTO ((int)); diff --git a/includes/dhctoken.h b/includes/dhctoken.h deleted file mode 100644 index bbb02cad..00000000 --- a/includes/dhctoken.h +++ /dev/null @@ -1,97 +0,0 @@ -/* dhctoken.h - - Tokens for config file lexer and parser. */ - -/* - * Copyright (c) 1995, 1996 The Internet Software Consortium. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names - * of its contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This software has been written for the Internet Software Consortium - * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie - * Enterprises. To learn more about the Internet Software Consortium, - * see ``http://www.vix.com/isc''. To learn more about Vixie - * Enterprises, see ``http://www.vix.com''. - */ - -#define SEMI ';' -#define DOT '.' -#define COLON ':' -#define COMMA ',' -#define SLASH '/' -#define LBRACE '{' -#define RBRACE '}' - -#define FIRST_TOKEN HOST -#define HOST 256 -#define HARDWARE 257 -#define FILENAME 258 -#define FIXED_ADDR 259 -#define OPTION 260 -#define ETHERNET 261 -#define STRING 262 -#define NUMBER 263 -#define NUMBER_OR_NAME 264 -#define NAME 265 -#define TIMESTAMP 266 -#define STARTS 267 -#define ENDS 268 -#define UID 269 -#define CLASS 270 -#define LEASE 271 -#define RANGE 272 -#define PACKET 273 -#define CIADDR 274 -#define YIADDR 275 -#define SIADDR 276 -#define GIADDR 277 -#define SUBNET 278 -#define NETMASK 279 -#define DEFAULT_LEASE_TIME 280 -#define MAX_LEASE_TIME 281 -#define VENDOR_CLASS 282 -#define USER_CLASS 283 -#define SHARED_NETWORK 284 -#define SERVER_NAME 285 -#define DYNAMIC_BOOTP 286 -#define SERVER_IDENTIFIER 287 -#define DYNAMIC_BOOTP_LEASE_CUTOFF 288 -#define DYNAMIC_BOOTP_LEASE_LENGTH 289 -#define BOOT_UNKNOWN_CLIENTS 290 -#define NEXT_SERVER 291 -#define TOKEN_RING 292 -#define GROUP 293 -#define ONE_LEASE_PER_CLIENT 294 -#define GET_LEASE_HOSTNAMES 295 -#define USE_HOST_DECL_NAMES 296 - -#define is_identifier(x) ((x) >= FIRST_TOKEN && \ - (x) != STRING && \ - (x) != NUMBER && \ - (x) != EOF) diff --git a/includes/hash.h b/includes/hash.h deleted file mode 100644 index d30072b3..00000000 --- a/includes/hash.h +++ /dev/null @@ -1,55 +0,0 @@ -/* hash.h - - Definitions for hashing... */ - -/* - * Copyright (c) 1995 The Internet Software Consortium. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names - * of its contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This software has been written for the Internet Software Consortium - * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie - * Enterprises. To learn more about the Internet Software Consortium, - * see ``http://www.vix.com/isc''. To learn more about Vixie - * Enterprises, see ``http://www.vix.com''. - */ - -#define DEFAULT_HASH_SIZE 97 - -struct hash_bucket { - struct hash_bucket *next; - char *name; - int len; - unsigned char *value; -}; - -struct hash_table { - int hash_count; - struct hash_bucket *buckets [DEFAULT_HASH_SIZE]; -}; - diff --git a/includes/inet.h b/includes/inet.h deleted file mode 100644 index 758573e9..00000000 --- a/includes/inet.h +++ /dev/null @@ -1,47 +0,0 @@ -/* inet.h - - Portable definitions for internet addresses */ - -/* - * Copyright (c) 1996 The Internet Software Consortium. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names - * of its contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This software has been written for the Internet Software Consortium - * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie - * Enterprises. To learn more about the Internet Software Consortium, - * see ``http://www.vix.com/isc''. To learn more about Vixie - * Enterprises, see ``http://www.vix.com''. - */ - -/* An internet address of up to 128 bits. */ - -struct iaddr { - int len; - unsigned char iabuf [16]; -}; diff --git a/includes/osdep.h b/includes/osdep.h deleted file mode 100644 index 02af9dcd..00000000 --- a/includes/osdep.h +++ /dev/null @@ -1,185 +0,0 @@ -/* osdep.h - - Operating system dependencies... */ - -/* - * Copyright (c) 1996 The Internet Software Consortium. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, - * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL - * THE INTERNET SOFTWARE CONSORTIUM OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED - * OF THE POSSIBILITY OF SUCH DAMAGE. - * - * This software was written for the Internet Software Consortium by Ted Lemon - * under a contract with Vixie Laboratories. - */ - -#include "site.h" - -/* Porting:: - - If you add a new network API, you must add a check for it below: */ - -#if !defined (USE_SOCKETS) && \ - !defined (USE_SOCKET_SEND) && \ - !defined (USE_SOCKET_RECEIVE) && \ - !defined (USE_RAW_SOCKETS) && \ - !defined (USE_RAW_SEND) && \ - !defined (USE_SOCKET_RECEIVE) && \ - !defined (USE_BPF) && \ - !defined (USE_BPF_SEND) && \ - !defined (USE_BPF_RECEIVE) && \ - !defined (USE_NIT) && \ - !defined (USE_NIT_SEND) && \ - !defined (USE_NIT_RECEIVE) -# define USE_DEFAULT_NETWORK -#endif - - -/* Porting:: - - If you add a new system configuration file, include it here: */ - -#if defined (sun) -# if defined (__svr4__) || defined (__SVR4) -# include "cf/sunos5-5.h" -# else -# include "cf/sunos4.h" -# endif -#endif - -#ifdef bsdi -# include "cf/bsdos.h" -#endif - -#ifdef __NetBSD__ -# include "cf/netbsd.h" -#endif - -#ifdef __FreeBSD__ -# include "cf/freebsd.h" -#endif - -#if defined (__osf__) && defined (__alpha) -# include "cf/alphaosf.h" -#endif - -#ifdef ultrix -# include "cf/ultrix.h" -#endif - -#ifdef linux -# include "cf/linux.h" -#endif - -#ifdef SCO -# include "cf/sco.h" -#endif - -#ifdef hpux -# include "cf/hpux.h" -#endif - -#ifdef __QNX__ -# include "cf/qnx.h" -#endif - -/* Porting:: - - If you add a new network API, and have it set up so that it can be - used for sending or receiving, but doesn't have to be used for both, - then set up an ifdef like the ones below: */ - -#ifdef USE_SOCKETS -# define USE_SOCKET_SEND -# define USE_SOCKET_RECEIVE -#endif - -#ifdef USE_RAW_SOCKETS -# define USE_RAW_SEND -# define USE_SOCKET_RECEIVE -#endif - -#ifdef USE_BPF -# define USE_BPF_SEND -# define USE_BPF_RECEIVE -#endif - -#ifdef USE_NIT -# define USE_NIT_SEND -# define USE_NIT_RECEIVE -#endif - -/* Porting:: - - If you add support for sending packets directly out an interface, - and your support does not do ARP or routing, you must use a fallback - mechanism to deal with packets that need to be sent to routers. - Currently, all low-level packet interfaces use BSD sockets as a - fallback. */ - -#if defined (USE_BPF_SEND) || defined (USE_NIT_SEND) -# define USE_SOCKET_FALLBACK -# define USE_FALLBACK -#endif - -/* Porting:: - - If you add support for sending packets directly out an interface - and need to be able to assemble packets, add the USE_XXX_SEND - definition for your interface to the list tested below. */ - -#if defined (USE_RAW_SEND) || defined (USE_BPF_SEND) || defined (USE_NIT_SEND) -# define PACKET_ASSEMBLY -#endif - -/* Porting:: - - If you add support for receiving packets directly from an interface - and need to be able to decode raw packets, add the USE_XXX_RECEIVE - definition for your interface to the list tested below. */ - -#if defined (USE_RAW_RECEIVE) || defined (USE_BPF_RECEIVE) \ - || defined (USE_NIT_RECEIVE) -# define PACKET_DECODING -#endif - -/* jmp_buf is assumed to be a struct unless otherwise defined in the - system header. */ -#ifndef jbp_decl -# define jbp_decl(x) jmp_buf *x -#endif -#ifndef jref -# define jref(x) (&(x)) -#endif -#ifndef jdref -# define jdref(x) (*(x)) -#endif -#ifndef jrefproto -# define jrefproto jmp_buf * -#endif - -#ifndef BPF_FORMAT -# define BPF_FORMAT "/dev/bpf%d" -#endif diff --git a/includes/site.h b/includes/site.h deleted file mode 100644 index 30fdb703..00000000 --- a/includes/site.h +++ /dev/null @@ -1,100 +0,0 @@ -/* Site-specific definitions. - - For supported systems, you shouldn't need to make any changes here. - However, you may want to, in order to deal with site-specific - differences. */ - -/* Add any site-specific definitions and inclusions here... */ - -/* #include <site-foo-bar.h> */ -/* #define SITE_FOOBAR */ - -/* Define this if you don't want dhcpd to run as a daemon and do want - to see all its output printed to stdout instead of being logged via - syslog(). This also makes dhcpd use the dhcpd.conf in its working - directory and write the dhcpd.leases file there. */ - -/* #define DEBUG */ - -/* Define this to see what the parser is parsing. You probably don't - want to see this. */ - -/* #define DEBUG_TOKENS */ - -/* Define this to see dumps of incoming and outgoing packets. This - slows things down quite a bit... */ - -/* #define DEBUG_PACKET */ - -/* Define this if you want to see dumps of tree evaluations. The most - common reason for doing this is to watch what happens with DNS name - lookups. */ - -/* #define DEBUG_EVAL */ - -/* Define this if you want the dhcpd.pid file to go somewhere other than - the default (which varies from system to system, but is usually either - /etc or /var/run. */ - -/* #define _PATH_DHCPD_PID "/var/run/dhcpd.pid" */ - -/* Define this if you want the dhcpd.leases file (the dynamic lease database) - to go somewhere other than the default location, which is normally - /etc/dhcpd.leases. */ - -/* #define _PATH_DHCPD_DB "/etc/dhcpd.leases" */ - -/* Define this if you want the dhcpd.conf file to go somewhere other than - the default location. By default, it goes in /etc/dhcpd.conf. */ - -/* #define _PATH_DHCPD_CONF "/etc/dhcpd.conf" */ - -/* Network API definitions. You do not need to choose one of these - if - you don't choose, one will be chosen for you in your system's config - header. DON'T MESS WITH THIS UNLESS YOU KNOW WHAT YOU'RE DOING!!! */ - -/* Define this to use the standard BSD socket API. - - On many systems, the BSD socket API does not provide the ability to - send packets to the 255.255.255.255 broadcast address, which can - prevent some clients (e.g., Win95) from seeing replies. This is - not a problem on Solaris. - - In addition, the BSD socket API will not work when more than one - network interface is configured on the server. - - However, the BSD socket API is about as efficient as you can get, so if - the aforementioned problems do not matter to you, or if no other - API is supported for your system, you may want to go with it. */ - -/* #define USE_SOCKETS */ - -/* Define this to use the Sun Streams NIT API. - - The Sun Streams NIT API is only supported on SunOS 4.x releases. */ - -/* #define USE_NIT */ - -/* Define this to use the Berkeley Packet Filter API. - - The BPF API is available on all 4.4-BSD derivatives, including - NetBSD, FreeBSD and BSDI's BSD/OS. It's also available on - DEC Alpha OSF/1 in a compatibility mode supported by the Alpha OSF/1 - packetfilter interface. */ - -/* #define USE_BPF */ - -/* Define this to use the raw socket API. - - The raw socket API is provided on many BSD derivatives, and provides - a way to send out raw IP packets. It is only supported for sending - packets - packets must be received with the regular socket API. - This code is experimental - I've never gotten it to actually transmit - a packet to the 255.255.255.255 broadcast address - so use it at your - own risk. */ - -/* #define USE_RAW_SOCKETS */ - -/* Define this to change the logging facility used by dhcpd. */ - -/* #define DHCPD_LOG_FACILITY LOG_DAEMON */ diff --git a/includes/tree.h b/includes/tree.h deleted file mode 100644 index c6b7a3ba..00000000 --- a/includes/tree.h +++ /dev/null @@ -1,104 +0,0 @@ -/* tree.h - - Definitions for address trees... */ - -/* - * Copyright (c) 1995 The Internet Software Consortium. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names - * of its contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This software has been written for the Internet Software Consortium - * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie - * Enterprises. To learn more about the Internet Software Consortium, - * see ``http://www.vix.com/isc''. To learn more about Vixie - * Enterprises, see ``http://www.vix.com''. - */ - -/* A pair of pointers, suitable for making a linked list. */ -typedef struct _pair { - caddr_t car; - struct _pair *cdr; -} *pair; - -/* Tree node types... */ -#define TREE_CONCAT 1 -#define TREE_HOST_LOOKUP 2 -#define TREE_CONST 3 -#define TREE_LIMIT 4 - -/* Tree structure for deferred evaluation of changing values. */ -struct tree { - int op; - union { - struct concat { - struct tree *left; - struct tree *right; - } concat; - struct host_lookup { - struct dns_host_entry *host; - } host_lookup; - struct const_val { - unsigned char *data; - int len; - } const_val; - struct limit { - struct tree *tree; - int limit; - } limit; - } data; -}; - -/* DNS host entry structure... */ -struct dns_host_entry { - char *hostname; - unsigned char *data; - int data_len; - int buf_len; - TIME timeout; -}; - -struct tree_cache { - unsigned char *value; - int len; - int buf_size; - TIME timeout; - struct tree *tree; -}; - -struct universe { - char *name; - struct hash_table *hash; - struct option *options [256]; -}; - -struct option { - char *name; - char *format; - struct universe *universe; - unsigned char code; -}; diff --git a/server/bootp.c b/server/bootp.c deleted file mode 100644 index fc983f11..00000000 --- a/server/bootp.c +++ /dev/null @@ -1,288 +0,0 @@ -/* bootp.c - - BOOTP Protocol support. */ - -/* - * Copyright (c) 1995, 1996 The Internet Software Consortium. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names - * of its contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This software has been written for the Internet Software Consortium - * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie - * Enterprises. To learn more about the Internet Software Consortium, - * see ``http://www.vix.com/isc''. To learn more about Vixie - * Enterprises, see ``http://www.vix.com''. - */ - -#ifndef lint -static char copyright[] = -"$Id: bootp.c,v 1.20 1996/11/08 20:08:34 mellon Exp $ Copyright (c) 1995, 1996 The Internet Software Consortium. All rights reserved.\n"; -#endif /* not lint */ - -#include "dhcpd.h" - -void bootp (packet) - struct packet *packet; -{ - int result; - struct host_decl *hp; - struct host_decl *host = (struct host_decl *)0; - struct packet outgoing; - struct dhcp_packet raw; - struct sockaddr_in to; - struct in_addr from; - struct hardware hto; - struct tree_cache *options [256]; - struct subnet *subnet; - struct lease *lease; - struct iaddr ip_address; - int i; - - note ("BOOTREQUEST from %s via %s", - print_hw_addr (packet -> raw -> htype, - packet -> raw -> hlen, - packet -> raw -> chaddr), - packet -> raw -> giaddr.s_addr - ? inet_ntoa (packet -> raw -> giaddr) - : packet -> interface -> name); - - - - if (!locate_network (packet)) - return; - - hp = find_hosts_by_haddr (packet -> raw -> htype, - packet -> raw -> chaddr, - packet -> raw -> hlen); - - lease = find_lease (packet, packet -> shared_network); - - /* Find an IP address in the host_decl that matches the - specified network. */ - if (hp) - subnet = find_host_for_network (&hp, &ip_address, - packet -> shared_network); - else - subnet = (struct subnet *)0; - - if (!subnet) { - /* We didn't find an applicable host declaration. - Just in case we may be able to dynamically assign - an address, see if there's a host declaration - that doesn't have an ip address associated with it. */ - if (hp) { - for (; hp; hp = hp -> n_ipaddr) { - if (!hp -> fixed_addr) { - host = hp; - } - } - } - - /* If we've been told not to boot unknown clients, - and we didn't find any host record for this client, - ignore it. */ - if (!hp && !(packet -> shared_network -> - group -> boot_unknown_clients)) { - note ("Ignoring unknown BOOTP client %s via %s", - print_hw_addr (packet -> raw -> htype, - packet -> raw -> hlen, - packet -> raw -> chaddr), - packet -> raw -> giaddr.s_addr - ? inet_ntoa (packet -> raw -> giaddr) - : packet -> interface -> name); - return; - } - - /* If the packet is from a host we don't know and there - are no dynamic bootp addresses on the network it came - in on, drop it on the floor. */ - if (!(packet -> shared_network -> group -> dynamic_bootp)) { - lose: - note ("No applicable record for BOOTP host %s via %s", - print_hw_addr (packet -> raw -> htype, - packet -> raw -> hlen, - packet -> raw -> chaddr), - packet -> raw -> giaddr.s_addr - ? inet_ntoa (packet -> raw -> giaddr) - : packet -> interface -> name); - return; - } - - /* If a lease has already been assigned to this client - and it's still okay to use dynamic bootp on - that lease, reassign it. */ - if (lease) { - /* If this lease can be used for dynamic bootp, - do so. */ - if ((lease -> flags & DYNAMIC_BOOTP_OK)) { - - /* If it's not a DYNAMIC_BOOTP lease, - release it before reassigning it - so that we don't get a lease - conflict. */ - if (!(lease -> flags & BOOTP_LEASE)) - release_lease (lease); - - lease -> host = host; - ack_lease (packet, lease, 0, 0); - return; - } - - /* If dynamic BOOTP is no longer allowed for - this lease, set it free. */ - release_lease (lease); - } - - /* If there are dynamic bootp addresses that might be - available, try to snag one. */ - for (lease = packet -> shared_network -> last_lease; - lease && lease -> ends <= cur_time; - lease = lease -> prev) { - if ((lease -> flags & DYNAMIC_BOOTP_OK)) { - lease -> host = host; - ack_lease (packet, lease, 0, 0); - return; - } - } - goto lose; - } - - /* Set up the outgoing packet... */ - memset (&outgoing, 0, sizeof outgoing); - memset (&raw, 0, sizeof raw); - outgoing.raw = &raw; - - /* Come up with a list of options that we want to send to this - client. Start with the per-subnet options, and then override - those with client-specific options. */ - - memcpy (options, subnet -> group -> options, sizeof options); - - for (i = 0; i < 256; i++) { - if (hp -> group -> options [i]) - options [i] = hp -> group -> options [i]; - } - - /* Pack the options into the buffer. Unlike DHCP, we can't - pack options into the filename and server name buffers. */ - - cons_options (packet, &outgoing, options, 0, 0); - if (outgoing.packet_length < BOOTP_MIN_LEN) - outgoing.packet_length = BOOTP_MIN_LEN; - - /* Take the fields that we care about... */ - raw.op = BOOTREPLY; - raw.htype = packet -> raw -> htype; - raw.hlen = packet -> raw -> hlen; - memcpy (raw.chaddr, packet -> raw -> chaddr, raw.hlen); - memset (&raw.chaddr [raw.hlen], 0, - (sizeof raw.chaddr) - raw.hlen); - raw.hops = packet -> raw -> hops; - raw.xid = packet -> raw -> xid; - raw.secs = packet -> raw -> secs; - raw.flags = 0; - raw.ciaddr = packet -> raw -> ciaddr; - memcpy (&raw.yiaddr, ip_address.iabuf, sizeof raw.yiaddr); - - /* Figure out the address of the next server. */ - if (hp && hp -> group -> next_server.len) - memcpy (&raw.siaddr, hp -> group -> next_server.iabuf, 4); - else if (subnet -> group -> next_server.len) - memcpy (&raw.siaddr, subnet -> group -> next_server.iabuf, 4); - else if (subnet -> interface_address.len) - memcpy (&raw.siaddr, subnet -> interface_address.iabuf, 4); - else - memcpy (&raw.siaddr, server_identifier.iabuf, 4); - - raw.giaddr = packet -> raw -> giaddr; - if (hp -> group -> server_name) { - strncpy (raw.sname, hp -> group -> server_name, - (sizeof raw.sname) - 1); - raw.sname [(sizeof raw.sname) - 1] = 0; - } - if (hp -> group -> filename) { - strncpy (raw.file, hp -> group -> filename, - (sizeof raw.file) - 1); - raw.file [(sizeof raw.file) - 1] = 0; - } - - /* Set up the hardware destination address... */ - hto.htype = packet -> raw -> htype; - hto.hlen = packet -> raw -> hlen; - memcpy (hto.haddr, packet -> raw -> chaddr, hto.hlen); - - if (server_identifier.len) - memcpy (&from, server_identifier.iabuf, 4); - else - memset (&from, 0, 4); - - /* Report what we're doing... */ - note ("BOOTREPLY for %s to %s (%s) via %s", - piaddr (ip_address), hp -> name, - print_hw_addr (packet -> raw -> htype, - packet -> raw -> hlen, - packet -> raw -> chaddr), - packet -> raw -> giaddr.s_addr - ? inet_ntoa (packet -> raw -> giaddr) - : packet -> interface -> name); - - /* Set up the parts of the address that are in common. */ - to.sin_family = AF_INET; -#ifdef HAVE_SA_LEN - to.sin_len = sizeof to; -#endif - memset (to.sin_zero, 0, sizeof to.sin_zero); - - /* If this was gatewayed, send it back to the gateway... */ - if (raw.giaddr.s_addr) { - to.sin_addr = raw.giaddr; - to.sin_port = server_port; - -#ifdef USE_FALLBACK - result = send_fallback (&fallback_interface, - (struct packet *)0, - &raw, outgoing.packet_length, - from, &to, &hto); - if (result < 0) - warn ("send_fallback: %m"); - return; -#endif - /* Otherwise, broadcast it on the local network. */ - } else { - to.sin_addr.s_addr = INADDR_BROADCAST; - to.sin_port = htons (ntohs (server_port) + 1); /* XXX */ - } - - errno = 0; - result = send_packet (packet -> interface, - packet, &raw, outgoing.packet_length, - from, &to, &hto); - if (result < 0) - warn ("send_packet: %m"); -} diff --git a/server/confpars.c b/server/confpars.c deleted file mode 100644 index 76e8606a..00000000 --- a/server/confpars.c +++ /dev/null @@ -1,1808 +0,0 @@ -/* confpars.c - - Parser for dhcpd config file... */ - -/* - * Copyright (c) 1995, 1996 The Internet Software Consortium. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names - * of its contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This software has been written for the Internet Software Consortium - * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie - * Enterprises. To learn more about the Internet Software Consortium, - * see ``http://www.vix.com/isc''. To learn more about Vixie - * Enterprises, see ``http://www.vix.com''. - */ - -#ifndef lint -static char copyright[] = -"$Id: confpars.c,v 1.36 1996/11/08 20:06:28 mellon Exp $ Copyright (c) 1995, 1996 The Internet Software Consortium. All rights reserved.\n"; -#endif /* not lint */ - -#include "dhcpd.h" -#include "dhctoken.h" - -static TIME parsed_time; - -/* conf-file :== parameters declarations EOF - parameters :== <nil> | parameter | parameters parameter - declarations :== <nil> | declaration | declarations declaration */ - -int readconf () -{ - FILE *cfile; - char *val; - int token; - int declaration = 0; - - new_parse (path_dhcpd_conf); - - /* Set up the initial dhcp option universe. */ - initialize_universes (); - - /* Set up the global defaults... */ - root_group.default_lease_time = 43200; /* 12 hours. */ - root_group.max_lease_time = 86400; /* 24 hours. */ - root_group.bootp_lease_cutoff = MAX_TIME; - root_group.boot_unknown_clients = 1; - - if ((cfile = fopen (path_dhcpd_conf, "r")) == NULL) - error ("Can't open %s: %m", path_dhcpd_conf); - do { - token = peek_token (&val, cfile); - if (token == EOF) - break; - declaration = parse_statement (cfile, &root_group, - ROOT_GROUP, - (struct host_decl *)0, - declaration); - } while (1); - token = next_token (&val, cfile); /* Clear the peek buffer */ - - return !warnings_occurred; -} - -/* lease-file :== lease-declarations EOF - lease-statments :== <nil> - | lease-declaration - | lease-declarations lease-declaration */ - -void read_leases () -{ - FILE *cfile; - char *val; - int token; - - new_parse (path_dhcpd_db); - - /* Open the lease file. If we can't open it, fail. The reason - for this is that although on initial startup, the absence of - a lease file is perfectly benign, if dhcpd has been running - and this file is absent, it means that dhcpd tried and failed - to rewrite the lease database. If we proceed and the - problem which caused the rewrite to fail has been fixed, but no - human has corrected the database problem, then we are left - thinking that no leases have been assigned to anybody, which - could create severe network chaos. */ - if ((cfile = fopen (path_dhcpd_db, "r")) == NULL) - error ("Can't open lease database %s: %m -- %s", - path_dhcpd_db, - "check for failed database rewrite attempt!"); - do { - token = next_token (&val, cfile); - if (token == EOF) - break; - if (token != LEASE) { - warn ("Corrupt lease file - possible data loss!"); - skip_to_semi (cfile); - } else { - struct lease *lease; - lease = parse_lease_declaration (cfile); - if (lease) - enter_lease (lease); - else - parse_warn ("possibly corrupt lease file"); - } - - } while (1); -} - -/* statement :== parameter | declaration - - parameter :== timestamp - | DEFAULT_LEASE_TIME lease_time - | MAX_LEASE_TIME lease_time - | DYNAMIC_BOOTP_LEASE_CUTOFF date - | DYNAMIC_BOOTP_LEASE_LENGTH lease_time - | BOOT_UNKNOWN_CLIENTS boolean - | ONE_LEASE_PER_CLIENT boolean - | GET_LEASE_HOSTNAMES boolean - | USE_HOST_DECL_NAME boolean - | NEXT_SERVER ip-addr-or-hostname SEMI - | option_parameter - | SERVER-IDENTIFIER ip-addr-or-hostname SEMI - | FILENAME string-parameter - | SERVER_NAME string-parameter - | hardware-parameter - | fixed-address-parameter - - declaration :== host-declaration - | group-declaration - | shared-network-declaration - | subnet-declaration - | VENDOR_CLASS class-declaration - | USER_CLASS class-declaration - | RANGE address-range-declaration */ - -int parse_statement (cfile, group, type, host_decl, declaration) - FILE *cfile; - struct group *group; - int type; - struct host_decl *host_decl; - int declaration; -{ - int token; - char *val; - struct shared_network *share; - char *t, *n; - struct tree *tree; - struct tree_cache *cache; - struct hardware hardware; - - switch (next_token (&val, cfile)) { - case HOST: - if (type != HOST_DECL) - parse_host_declaration (cfile, group); - else { - parse_warn ("host declarations not allowed here."); - skip_to_semi (cfile); - } - return 1; - - case GROUP: - if (type != HOST_DECL) - parse_group_declaration (cfile, group); - else { - parse_warn ("host declarations not allowed here."); - skip_to_semi (cfile); - } - return 1; - - case TIMESTAMP: - parsed_time = parse_timestamp (cfile); - break; - - case SHARED_NETWORK: - if (type == SHARED_NET_DECL || - type == HOST_DECL || - type == SUBNET_DECL) { - parse_warn ("shared-network parameters not %s.", - "allowed here"); - skip_to_semi (cfile); - break; - } - - parse_shared_net_declaration (cfile, group); - return 1; - - case SUBNET: - if (type == HOST_DECL || type == SUBNET_DECL) { - parse_warn ("subnet declarations not allowed here."); - skip_to_semi (cfile); - return 1; - } - - /* If we're in a subnet declaration, just do the parse. */ - if (group -> shared_network) { - parse_subnet_declaration (cfile, - group -> shared_network); - break; - } - - /* Otherwise, cons up a fake shared network structure - and populate it with the lone subnet... */ - - share = new_shared_network ("parse_statement"); - if (!share) - error ("No memory for shared subnet"); - share -> group = clone_group (group, "parse_statement:subnet"); - share -> group -> shared_network = share; - - parse_subnet_declaration (cfile, share); - if (share -> subnets) { - share -> interface = - share -> subnets -> interface; - - n = piaddr (share -> subnets -> net); - t = malloc (strlen (n) + 1); - if (!t) - error ("no memory for subnet name"); - strcpy (t, n); - share -> name = t; - enter_shared_network (share); - } - return 1; - - case VENDOR_CLASS: - parse_class_declaration (cfile, group, 0); - return 1; - - case USER_CLASS: - parse_class_declaration (cfile, group, 1); - return 1; - - case DEFAULT_LEASE_TIME: - parse_lease_time (cfile, &group -> default_lease_time); - break; - - case MAX_LEASE_TIME: - parse_lease_time (cfile, &group -> max_lease_time); - break; - - case DYNAMIC_BOOTP_LEASE_CUTOFF: - group -> bootp_lease_cutoff = parse_date (cfile); - break; - - case DYNAMIC_BOOTP_LEASE_LENGTH: - parse_lease_time (cfile, &group -> bootp_lease_length); - break; - - case BOOT_UNKNOWN_CLIENTS: - if (type == HOST_DECL) - parse_warn ("boot-unknown-clients not allowed here."); - group -> boot_unknown_clients = parse_boolean (cfile); - break; - - case ONE_LEASE_PER_CLIENT: - if (type == HOST_DECL) - parse_warn ("one-lease-per-client not allowed here."); - group -> one_lease_per_client = parse_boolean (cfile); - break; - - case GET_LEASE_HOSTNAMES: - if (type == HOST_DECL) - parse_warn ("get-lease-hostnames not allowed here."); - group -> get_lease_hostnames = parse_boolean (cfile); - break; - - case USE_HOST_DECL_NAMES: - if (type == HOST_DECL) - parse_warn ("use-host-decl-names not allowed here."); - group -> use_host_decl_names = parse_boolean (cfile); - break; - - case NEXT_SERVER: - tree = parse_ip_addr_or_hostname (cfile, 0); - if (!tree) - break; - cache = tree_cache (tree); - if (!tree_evaluate (cache)) - error ("next-server is not known"); - group -> next_server.len = 4; - memcpy (group -> next_server.iabuf, - cache -> value, group -> next_server.len); - parse_semi (cfile); - break; - - case OPTION: - parse_option_param (cfile, group); - break; - - case SERVER_IDENTIFIER: - if (type != ROOT_GROUP) - parse_warn ("server-identifier only allowed at top %s", - "level."); - tree = parse_ip_addr_or_hostname (cfile, 0); - if (!tree) - return declaration; - cache = tree_cache (tree); - if (type == ROOT_GROUP) { - if (!tree_evaluate (cache)) - error ("server-identifier is not known"); - } - token = next_token (&val, cfile); - break; - - case FILENAME: - group -> filename = parse_string (cfile); - break; - - case SERVER_NAME: - group -> server_name = parse_string (cfile); - break; - - case HARDWARE: - parse_hardware_param (cfile, &hardware); - if (host_decl) - host_decl -> interface = hardware; - else - parse_warn ("hardware address parameter %s", - "not allowed here."); - break; - - case FIXED_ADDR: - cache = parse_fixed_addr_param (cfile); - if (host_decl) - host_decl -> fixed_addr = cache; - else - parse_warn ("fixed-address parameter not %s", - "allowed here."); - break; - - case RANGE: - if (type != SUBNET_DECL || !group -> subnet) { - parse_warn ("range declaration not allowed here."); - skip_to_semi (cfile); - return declaration; - } - parse_address_range (cfile, group -> subnet); - return declaration; - - default: - if (declaration) - parse_warn ("expecting a declaration."); - else - parse_warn ("expecting a parameter or declaration."); - skip_to_semi (cfile); - return declaration; - } - - if (declaration) { - parse_warn ("parameters not allowed after first declaration."); - return 1; - } - - return 0; -} - -/* Skip to the semicolon ending the current statement. If we encounter - braces, the matching closing brace terminates the statement. If we - encounter a right brace but haven't encountered a left brace, return - leaving the brace in the token buffer for the caller. If we see a - semicolon and haven't seen a left brace, return. This lets us skip - over: - - statement; - statement foo bar { } - statement foo bar { statement { } } - statement} - - ...et cetera. */ - -void skip_to_semi (cfile) - FILE *cfile; -{ - int token; - char *val; - int brace_count = 0; - - do { - token = peek_token (&val, cfile); - if (token == RBRACE) { - if (brace_count) { - token = next_token (&val, cfile); - if (!--brace_count) - return; - } else - return; - } else if (token == LBRACE) { - brace_count++; - } else if (token == SEMI && !brace_count) { - token = next_token (&val, cfile); - return; - } - token = next_token (&val, cfile); - } while (token != EOF); -} - -/* boolean :== ON SEMI | OFF SEMI | TRUE SEMI | FALSE SEMI */ - -int parse_boolean (cfile) - FILE *cfile; -{ - int token; - char *val; - int rv; - - token = next_token (&val, cfile); - if (!strcasecmp (val, "true") - || !strcasecmp (val, "on")) - rv = 1; - else if (!strcasecmp (val, "false") - || !strcasecmp (val, "off")) - rv = 0; - else { - parse_warn ("boolean value (true/false/on/off) expected"); - skip_to_semi (cfile); - return 0; - } - parse_semi (cfile); - return rv; -} - -int parse_semi (cfile) - FILE *cfile; -{ - int token; - char *val; - - token = next_token (&val, cfile); - if (token != SEMI) { - parse_warn ("semicolon expected."); - skip_to_semi (cfile); - return 0; - } - return 1; -} - -/* Expect a left brace; if there isn't one, skip over the rest of the - statement and return zero; otherwise, return 1. */ - -int parse_lbrace (cfile) - FILE *cfile; -{ - int token; - char *val; - - token = next_token (&val, cfile); - if (token != LBRACE) { - parse_warn ("expecting left brace."); - skip_to_semi (cfile); - return 0; - } - return 1; -} - - -/* host-declaration :== hostname RBRACE parameters declarations LBRACE */ - -void parse_host_declaration (cfile, group) - FILE *cfile; - struct group *group; -{ - char *val; - int token; - struct host_decl *host; - char *name = parse_host_name (cfile); - int declaration = 0; - - if (!name) - return; - - host = (struct host_decl *)dmalloc (sizeof (struct host_decl), - "parse_host_declaration"); - if (!host) - error ("can't allocate host decl struct %s.", name); - - host -> name = name; - host -> group = clone_group (group, "parse_host_declaration"); - - if (!parse_lbrace (cfile)) - return; - - do { - token = peek_token (&val, cfile); - if (token == RBRACE) { - token = next_token (&val, cfile); - break; - } - if (token == EOF) { - token = next_token (&val, cfile); - parse_warn ("unexpected end of file"); - break; - } - declaration = parse_statement (cfile, host -> group, - HOST_DECL, host, - declaration); - } while (1); - - if (!host -> group -> options [DHO_HOST_NAME] && - host -> group -> use_host_decl_names) { - host -> group -> options [DHO_HOST_NAME] = - new_tree_cache ("parse_host_declaration"); - if (!host -> group -> options [DHO_HOST_NAME]) - error ("can't allocate a tree cache for hostname."); - host -> group -> options [DHO_HOST_NAME] -> len = - strlen (name); - host -> group -> options [DHO_HOST_NAME] -> value = - (unsigned char *)name; - host -> group -> options [DHO_HOST_NAME] -> buf_size = - host -> group -> options [DHO_HOST_NAME] -> len; - host -> group -> options [DHO_HOST_NAME] -> timeout = - 0xFFFFFFFF; - host -> group -> options [DHO_HOST_NAME] -> tree = - (struct tree *)0; - } - - enter_host (host); -} - -/* hostname :== identifier | hostname DOT identifier */ - -char *parse_host_name (cfile) - FILE *cfile; -{ - char *val; - int token; - int len = 0; - char *s; - char *t; - pair c = (pair)0; - - /* Read a dotted hostname... */ - do { - /* Read a token, which should be an identifier. */ - token = next_token (&val, cfile); - if (!is_identifier (token) && token != NUMBER) { - parse_warn ("expecting an identifier in hostname"); - skip_to_semi (cfile); - return (char *)0; - } - /* Store this identifier... */ - if (!(s = (char *)malloc (strlen (val) + 1))) - error ("can't allocate temp space for hostname."); - strcpy (s, val); - c = cons ((caddr_t)s, c); - len += strlen (s) + 1; - /* Look for a dot; if it's there, keep going, otherwise - we're done. */ - token = peek_token (&val, cfile); - if (token == DOT) - token = next_token (&val, cfile); - } while (token == DOT); - - /* Assemble the hostname together into a string. */ - if (!(s = (char *)malloc (len))) - error ("can't allocate space for hostname."); - t = s + len; - *--t = 0; - while (c) { - pair cdr = c -> cdr; - int l = strlen ((char *)(c -> car)); - t -= l; - memcpy (t, (char *)(c -> car), l); - /* Free up temp space. */ - free (c -> car); - free (c); - c = cdr; - if (t != s) - *--t = '.'; - } - return s; -} - -/* class-declaration :== STRING LBRACE parameters declarations RBRACE -*/ - -void parse_class_declaration (cfile, group, type) - FILE *cfile; - struct group *group; - int type; -{ - char *val; - int token; - struct class *class; - int declaration; - - token = next_token (&val, cfile); - if (token != STRING) { - parse_warn ("Expecting class name"); - skip_to_semi (cfile); - return; - } - - class = add_class (type, val); - if (!class) - error ("No memory for class %s.", val); - class -> group = clone_group (group, "parse_class_declaration"); - - if (!parse_lbrace (cfile)) - return; - - do { - token = peek_token (&val, cfile); - if (token == RBRACE) { - token = next_token (&val, cfile); - break; - } else if (token == EOF) { - token = next_token (&val, cfile); - parse_warn ("unexpected end of file"); - break; - } else { - declaration = parse_statement (cfile, class -> group, - CLASS_DECL, - (struct host_decl *)0, - declaration); - } - } while (1); -} - -/* lease-time :== NUMBER SEMI */ - -void parse_lease_time (cfile, timep) - FILE *cfile; - TIME *timep; -{ - char *val; - int token; - - token = next_token (&val, cfile); - if (token != NUMBER) { - parse_warn ("Expecting numeric lease time"); - skip_to_semi (cfile); - return; - } - convert_num ((unsigned char *)timep, val, 10, 32); - /* Unswap the number - convert_num returns stuff in NBO. */ - *timep = ntohl (*timep); /* XXX */ - - parse_semi (cfile); -} - -/* shared-network-declaration :== - hostname LBRACE declarations parameters RBRACE */ - -void parse_shared_net_declaration (cfile, group) - FILE *cfile; - struct group *group; -{ - char *val; - int token; - struct shared_network *share; - char *name; - int declaration = 0; - - share = new_shared_network ("parse_shared_net_declaration"); - if (!share) - error ("No memory for shared subnet"); - share -> leases = (struct lease *)0; - share -> last_lease = (struct lease *)0; - share -> insertion_point = (struct lease *)0; - share -> next = (struct shared_network *)0; - share -> interface = (struct interface_info *)0; - share -> group = clone_group (group, "parse_shared_net_declaration"); - share -> group -> shared_network = share; - - /* Get the name of the shared network... */ - token = peek_token (&val, cfile); - if (token == STRING) { - token = next_token (&val, cfile); - - if (val [0] == 0) { - parse_warn ("zero-length shared network name"); - val = "<no-name-given>"; - } - name = malloc (strlen (val) + 1); - if (!name) - error ("no memory for shared network name"); - strcpy (name, val); - } else { - name = parse_host_name (cfile); - if (!name) - return; - } - share -> name = name; - - if (!parse_lbrace (cfile)) - return; - - do { - token = peek_token (&val, cfile); - if (token == RBRACE) { - token = next_token (&val, cfile); - if (!share -> subnets) { - parse_warn ("empty shared-network decl"); - return; - } - enter_shared_network (share); - return; - } else if (token == EOF) { - token = next_token (&val, cfile); - parse_warn ("unexpected end of file"); - break; - } - - declaration = parse_statement (cfile, share -> group, - SHARED_NET_DECL, - (struct host_decl *)0, - declaration); - } while (1); -} - -/* subnet-declaration :== - net NETMASK netmask RBRACE parameters declarations LBRACE */ - -void parse_subnet_declaration (cfile, share) - FILE *cfile; - struct shared_network *share; -{ - char *val; - int token; - struct subnet *subnet, *t; - struct iaddr iaddr; - unsigned char addr [4]; - int len = sizeof addr; - int declaration = 0; - - subnet = new_subnet ("parse_subnet_declaration"); - if (!subnet) - error ("No memory for new subnet"); - subnet -> shared_network = share; - subnet -> group = clone_group (share -> group, - "parse_subnet_declaration"); - subnet -> group -> subnet = subnet; - - /* Get the network number... */ - if (!parse_numeric_aggregate (cfile, addr, &len, DOT, 10, 8)) - return; - memcpy (iaddr.iabuf, addr, len); - iaddr.len = len; - subnet -> net = iaddr; - - token = next_token (&val, cfile); - if (token != NETMASK) { - parse_warn ("Expecting netmask"); - skip_to_semi (cfile); - return; - } - - /* Get the netmask... */ - if (!parse_numeric_aggregate (cfile, addr, &len, DOT, 10, 8)) - return; - memcpy (iaddr.iabuf, addr, len); - iaddr.len = len; - subnet -> netmask = iaddr; - - enter_subnet (subnet); - - if (!parse_lbrace (cfile)) - return; - - do { - token = peek_token (&val, cfile); - if (token == RBRACE) { - token = next_token (&val, cfile); - break; - } else if (token == EOF) { - token = next_token (&val, cfile); - parse_warn ("unexpected end of file"); - break; - } - declaration = parse_statement (cfile, subnet -> group, - SUBNET_DECL, - (struct host_decl *)0, - declaration); - } while (1); - - /* If this subnet supports dynamic bootp, flag it so in the - shared_network containing it. */ - if (subnet -> group -> dynamic_bootp) - share -> group -> dynamic_bootp = 1; - if (subnet -> group -> one_lease_per_client) - share -> group -> one_lease_per_client = 1; - - /* Add the subnet to the list of subnets in this shared net. */ - if (!share -> subnets) - share -> subnets = subnet; - else { - for (t = share -> subnets; - t -> next_sibling; t = t -> next_sibling) - ; - t -> next_sibling = subnet; - } -} - -/* group-declaration :== RBRACE parameters declarations LBRACE */ - -void parse_group_declaration (cfile, group) - FILE *cfile; - struct group *group; -{ - char *val; - int token; - struct group *g; - int declaration = 0; - - g = clone_group (group, "parse_group_declaration"); - - if (!parse_lbrace (cfile)) - return; - - do { - token = peek_token (&val, cfile); - if (token == RBRACE) { - token = next_token (&val, cfile); - break; - } else if (token == EOF) { - token = next_token (&val, cfile); - parse_warn ("unexpected end of file"); - break; - } - declaration = parse_statement (cfile, g, GROUP_DECL, - (struct host_decl *)0, - declaration); - } while (1); -} - -/* hardware-parameter :== HARDWARE ETHERNET csns SEMI - csns :== NUMBER | csns COLON NUMBER */ - -void parse_hardware_param (cfile, hardware) - FILE *cfile; - struct hardware *hardware; -{ - char *val; - int token; - int hlen; - unsigned char *t; - - token = next_token (&val, cfile); - switch (token) { - case ETHERNET: - hardware -> htype = HTYPE_ETHER; - break; - case TOKEN_RING: - hardware -> htype = HTYPE_IEEE802; - break; - default: - parse_warn ("expecting a network hardware type"); - skip_to_semi (cfile); - return; - } - - /* Parse the hardware address information. Technically, - it would make a lot of sense to restrict the length of the - data we'll accept here to the length of a particular hardware - address type. Unfortunately, there are some broken clients - out there that put bogus data in the chaddr buffer, and we accept - that data in the lease file rather than simply failing on such - clients. Yuck. */ - hlen = 0; - t = parse_numeric_aggregate (cfile, (unsigned char *)0, &hlen, - COLON, 16, 8); - if (!t) - return; - if (hlen > sizeof hardware -> haddr) { - free (t); - parse_warn ("hardware address too long"); - } else { - hardware -> hlen = hlen; - memcpy ((unsigned char *)&hardware -> haddr [0], - t, hardware -> hlen); - free (t); - } - - token = next_token (&val, cfile); - if (token != SEMI) { - parse_warn ("expecting semicolon."); - skip_to_semi (cfile); - } -} - -/* string-parameter :== STRING SEMI */ - -char *parse_string (cfile) - FILE *cfile; -{ - char *val; - int token; - char *s; - - token = next_token (&val, cfile); - if (token != STRING) { - parse_warn ("filename must be a string"); - skip_to_semi (cfile); - return (char *)0; - } - s = (char *)malloc (strlen (val) + 1); - if (!s) - error ("no memory for string %s.", val); - strcpy (s, val); - - if (!parse_semi (cfile)) - return (char *)0; - return s; -} - -/* ip-addr-or-hostname :== ip-address | hostname - ip-address :== NUMBER DOT NUMBER DOT NUMBER DOT NUMBER - - Parse an ip address or a hostname. If uniform is zero, put in - a TREE_LIMIT node to catch hostnames that evaluate to more than - one IP address. */ - -struct tree *parse_ip_addr_or_hostname (cfile, uniform) - FILE *cfile; - int uniform; -{ - char *val; - int token; - unsigned char addr [4]; - int len = sizeof addr; - char *name; - struct tree *rv; - - token = peek_token (&val, cfile); - if (is_identifier (token)) { - name = parse_host_name (cfile); - if (!name) - return (struct tree *)0; - rv = tree_host_lookup (name); - if (!uniform) - rv = tree_limit (rv, 4); - } else if (token == NUMBER) { - if (!parse_numeric_aggregate (cfile, addr, &len, DOT, 10, 8)) - return (struct tree *)0; - rv = tree_const (addr, len); - } else { - if (token != RBRACE && token != LBRACE) - token = next_token (&val, cfile); - parse_warn ("%s (%d): expecting IP address or hostname", - val, token); - if (token != SEMI) - skip_to_semi (cfile); - return (struct tree *)0; - } - - return rv; -} - - -/* fixed-addr-parameter :== ip-addrs-or-hostnames SEMI - ip-addrs-or-hostnames :== ip-addr-or-hostname - | ip-addrs-or-hostnames ip-addr-or-hostname */ - -struct tree_cache *parse_fixed_addr_param (cfile) - FILE *cfile; -{ - char *val; - int token; - struct tree *tree = (struct tree *)0; - struct tree *tmp; - - do { - tmp = parse_ip_addr_or_hostname (cfile, 0); - if (tree) - tree = tree_concat (tree, tmp); - else - tree = tmp; - token = peek_token (&val, cfile); - if (token == COMMA) - token = next_token (&val, cfile); - } while (token == COMMA); - - if (!parse_semi (cfile)) - return (struct tree_cache *)0; - return tree_cache (tree); -} - -/* option_parameter :== identifier DOT identifier <syntax> SEMI - | identifier <syntax> SEMI - - Option syntax is handled specially through format strings, so it - would be painful to come up with BNF for it. However, it always - starts as above and ends in a SEMI. */ - -void parse_option_param (cfile, group) - FILE *cfile; - struct group *group; -{ - char *val; - int token; - unsigned char buf [4]; - char *vendor; - char *fmt; - struct universe *universe; - struct option *option; - struct tree *tree = (struct tree *)0; - struct tree *t; - - token = next_token (&val, cfile); - if (!is_identifier (token)) { - parse_warn ("expecting identifier after option keyword."); - if (token != SEMI) - skip_to_semi (cfile); - return; - } - vendor = malloc (strlen (val) + 1); - strcpy (vendor, val); - token = peek_token (&val, cfile); - if (token == DOT) { - /* Go ahead and take the DOT token... */ - token = next_token (&val, cfile); - - /* The next token should be an identifier... */ - token = next_token (&val, cfile); - if (!is_identifier (token)) { - parse_warn ("expecting identifier after '.'"); - if (token != SEMI) - skip_to_semi (cfile); - return; - } - - /* Look up the option name hash table for the specified - vendor. */ - universe = (struct universe *)hash_lookup (&universe_hash, - vendor, 0); - /* If it's not there, we can't parse the rest of the - declaration. */ - if (!universe) { - parse_warn ("no vendor named %s.", vendor); - skip_to_semi (cfile); - return; - } - } else { - /* Use the default hash table, which contains all the - standard dhcp option names. */ - val = vendor; - universe = &dhcp_universe; - } - - /* Look up the actual option info... */ - option = (struct option *)hash_lookup (universe -> hash, val, 0); - - /* If we didn't get an option structure, it's an undefined option. */ - if (!option) { - if (val == vendor) - parse_warn ("no option named %s", val); - else - parse_warn ("no option named %s for vendor %s", - val, vendor); - skip_to_semi (cfile); - return; - } - - /* Free the initial identifier token. */ - free (vendor); - - /* Parse the option data... */ - do { - /* Set a flag if this is an array of a simple type (i.e., - not an array of pairs of IP addresses, or something - like that. */ - int uniform = option -> format [1] == 'A'; - - for (fmt = option -> format; *fmt; fmt++) { - if (*fmt == 'A') - break; - switch (*fmt) { - case 'X': - token = peek_token (&val, cfile); - if (token == NUMBER_OR_NAME || - token == NUMBER) { - do { - token = next_token - (&val, cfile); - if (token != NUMBER - && token != NUMBER_OR_NAME) - goto need_number; - convert_num (buf, val, 16, 8); - tree = tree_concat - (tree, - tree_const (buf, 1)); - token = peek_token - (&val, cfile); - if (token == COLON) - token = next_token - (&val, cfile); - } while (token == COLON); - } else if (token == STRING) { - token = next_token (&val, cfile); - tree = tree_concat - (tree, - tree_const (val, - strlen (val))); - } else { - parse_warn ("expecting string %s.", - "or hexadecimal data"); - skip_to_semi (cfile); - return; - } - break; - - case 't': /* Text string... */ - token = next_token (&val, cfile); - if (token != STRING - && !is_identifier (token)) { - parse_warn ("expecting string."); - if (token != SEMI) - skip_to_semi (cfile); - return; - } - tree = tree_concat (tree, - tree_const (val, - strlen (val))); - break; - - case 'I': /* IP address or hostname. */ - t = parse_ip_addr_or_hostname (cfile, uniform); - if (!t) - return; - tree = tree_concat (tree, t); - break; - - case 'L': /* Unsigned 32-bit integer... */ - case 'l': /* Signed 32-bit integer... */ - token = next_token (&val, cfile); - if (token != NUMBER) { - need_number: - parse_warn ("expecting number."); - if (token != SEMI) - skip_to_semi (cfile); - return; - } - convert_num (buf, val, 0, 32); - tree = tree_concat (tree, tree_const (buf, 4)); - break; - case 's': /* Signed 16-bit integer. */ - case 'S': /* Unsigned 16-bit integer. */ - token = next_token (&val, cfile); - if (token != NUMBER) - goto need_number; - convert_num (buf, val, 0, 16); - tree = tree_concat (tree, tree_const (buf, 2)); - break; - case 'b': /* Signed 8-bit integer. */ - case 'B': /* Unsigned 8-bit integer. */ - token = next_token (&val, cfile); - if (token != NUMBER) - goto need_number; - convert_num (buf, val, 0, 8); - tree = tree_concat (tree, tree_const (buf, 1)); - break; - case 'f': /* Boolean flag. */ - token = next_token (&val, cfile); - if (!is_identifier (token)) { - parse_warn ("expecting identifier."); - bad_flag: - if (token != SEMI) - skip_to_semi (cfile); - return; - } - if (!strcasecmp (val, "true") - || !strcasecmp (val, "on")) - buf [0] = 1; - else if (!strcasecmp (val, "false") - || !strcasecmp (val, "off")) - buf [0] = 0; - else { - parse_warn ("expecting boolean."); - goto bad_flag; - } - tree = tree_concat (tree, tree_const (buf, 1)); - break; - default: - warn ("Bad format %c in parse_option_param.", - *fmt); - skip_to_semi (cfile); - return; - } - } - if (*fmt == 'A') { - token = peek_token (&val, cfile); - if (token == COMMA) { - token = next_token (&val, cfile); - continue; - } - break; - } - } while (*fmt == 'A'); - - token = next_token (&val, cfile); - if (token != SEMI) { - parse_warn ("semicolon expected."); - skip_to_semi (cfile); - return; - } - group -> options [option -> code] = tree_cache (tree); -} - -/* timestamp :== date - - Timestamps are actually not used in dhcpd.conf, which is a static file, - but rather in the database file and the journal file. (Okay, actually - they're not even used there yet). */ - -TIME parse_timestamp (cfile) - FILE *cfile; -{ - TIME rv; - - rv = parse_date (cfile); - return rv; -} - -/* lease_declaration :== LEASE ip_address LBRACE lease_parameters RBRACE - - lease_parameters :== <nil> - | lease_parameter - | lease_parameters lease_parameter - - lease_parameter :== STARTS date - | ENDS date - | TIMESTAMP date - | HARDWARE hardware-parameter - | UID hex_numbers SEMI - | HOST hostname SEMI - | CLASS identifier SEMI - | DYNAMIC_BOOTP SEMI */ - -struct lease *parse_lease_declaration (cfile) - FILE *cfile; -{ - char *val; - int token; - unsigned char addr [4]; - int len = sizeof addr; - int seenmask = 0; - int seenbit; - char tbuf [32]; - static struct lease lease; - - /* Zap the lease structure... */ - memset (&lease, 0, sizeof lease); - - /* Get the address for which the lease has been issued. */ - if (!parse_numeric_aggregate (cfile, addr, &len, DOT, 10, 8)) - return (struct lease *)0; - memcpy (lease.ip_addr.iabuf, addr, len); - lease.ip_addr.len = len; - - if (!parse_lbrace (cfile)) - return (struct lease *)0; - - do { - token = next_token (&val, cfile); - if (token == RBRACE) - break; - else if (token == EOF) { - parse_warn ("unexpected end of file"); - break; - } - strncpy (val, tbuf, sizeof tbuf); - tbuf [(sizeof tbuf) - 1] = 0; - - /* Parse any of the times associated with the lease. */ - if (token == STARTS || token == ENDS || token == TIMESTAMP) { - TIME t; - t = parse_date (cfile); - switch (token) { - case STARTS: - seenbit = 1; - lease.starts = t; - break; - - case ENDS: - seenbit = 2; - lease.ends = t; - break; - - case TIMESTAMP: - seenbit = 4; - lease.timestamp = t; - break; - - default: - /*NOTREACHED*/ - seenbit = 0; - break; - } - } else { - switch (token) { - /* Colon-seperated hexadecimal octets... */ - case UID: - seenbit = 8; - token = peek_token (&val, cfile); - if (token == STRING) { - token = next_token (&val, cfile); - lease.uid_len = strlen (val) + 1; - lease.uid = (unsigned char *) - malloc (lease.uid_len); - if (!lease.uid) { - warn ("no space for uid"); - return (struct lease *)0; - } - memcpy (lease.uid, val, lease.uid_len); - } else { - lease.uid_len = 0; - lease.uid = parse_numeric_aggregate - (cfile, (unsigned char *)0, - &lease.uid_len, ':', 16, 8); - if (!lease.uid) { - warn ("no space for uid"); - return (struct lease *)0; - } - if (lease.uid_len == 0) { - lease.uid = (unsigned char *)0; - parse_warn ("zero-length uid"); - seenbit = 0; - break; - } - } - if (!lease.uid) { - error ("No memory for lease uid"); - } - break; - - case CLASS: - seenbit = 32; - token = next_token (&val, cfile); - if (!is_identifier (token)) { - if (token != SEMI) - skip_to_semi (cfile); - return (struct lease *)0; - } - /* for now, we aren't using this. */ - break; - - case HARDWARE: - seenbit = 64; - parse_hardware_param (cfile, - &lease.hardware_addr); - break; - - case DYNAMIC_BOOTP: - seenbit = 128; - lease.flags |= BOOTP_LEASE; - break; - - default: - skip_to_semi (cfile); - seenbit = 0; - return (struct lease *)0; - } - - if (token != HARDWARE) { - token = next_token (&val, cfile); - if (token != SEMI) { - parse_warn ("semicolon expected."); - skip_to_semi (cfile); - return (struct lease *)0; - } - } - } - if (seenmask & seenbit) { - parse_warn ("Too many %s parameters in lease %s\n", - tbuf, piaddr (lease.ip_addr)); - } else - seenmask |= seenbit; - - } while (1); - return &lease; -} - -/* address-range-declaration :== ip-address ip-address SEMI - | DYNAMIC_BOOTP ip-address ip-address SEMI */ - -void parse_address_range (cfile, subnet) - FILE *cfile; - struct subnet *subnet; -{ - struct iaddr low, high; - unsigned char addr [4]; - int len = sizeof addr; - int token; - char *val; - int dynamic = 0; - - if ((token = peek_token (&val, cfile)) == DYNAMIC_BOOTP) { - token = next_token (&val, cfile); - subnet -> group -> dynamic_bootp = dynamic = 1; - } - - /* Get the bottom address in the range... */ - if (!parse_numeric_aggregate (cfile, addr, &len, DOT, 10, 8)) - return; - memcpy (low.iabuf, addr, len); - low.len = len; - - /* Only one address? */ - token = peek_token (&val, cfile); - if (token == SEMI) - high = low; - else { - /* Get the top address in the range... */ - if (!parse_numeric_aggregate (cfile, addr, &len, DOT, 10, 8)) - return; - memcpy (high.iabuf, addr, len); - high.len = len; - } - - token = next_token (&val, cfile); - if (token != SEMI) { - parse_warn ("semicolon expected."); - skip_to_semi (cfile); - return; - } - - /* Create the new address range... */ - new_address_range (low, high, subnet, dynamic); -} - -/* date :== NUMBER NUMBER SLASH NUMBER SLASH NUMBER - NUMBER COLON NUMBER COLON NUMBER SEMI - - Dates are always in GMT; first number is day of week; next is - year/month/day; next is hours:minutes:seconds on a 24-hour - clock. */ - -TIME parse_date (cfile) - FILE *cfile; -{ - struct tm tm; - int guess; - char *val; - int token; - static int months [11] = { 31, 59, 90, 120, 151, 181, - 212, 243, 273, 304, 334 }; - - /* Day of week... */ - token = next_token (&val, cfile); - if (token != NUMBER) { - parse_warn ("numeric day of week expected."); - if (token != SEMI) - skip_to_semi (cfile); - return (TIME)0; - } - tm.tm_wday = atoi (val); - - /* Year... */ - token = next_token (&val, cfile); - if (token != NUMBER) { - parse_warn ("numeric year expected."); - if (token != SEMI) - skip_to_semi (cfile); - return (TIME)0; - } - tm.tm_year = atoi (val); - if (tm.tm_year > 1900) - tm.tm_year -= 1900; - - /* Slash seperating year from month... */ - token = next_token (&val, cfile); - if (token != SLASH) { - parse_warn ("expected slash seperating year from month."); - if (token != SEMI) - skip_to_semi (cfile); - return (TIME)0; - } - - /* Month... */ - token = next_token (&val, cfile); - if (token != NUMBER) { - parse_warn ("numeric month expected."); - if (token != SEMI) - skip_to_semi (cfile); - return (TIME)0; - } - tm.tm_mon = atoi (val) - 1; - - /* Slash seperating month from day... */ - token = next_token (&val, cfile); - if (token != SLASH) { - parse_warn ("expected slash seperating month from day."); - if (token != SEMI) - skip_to_semi (cfile); - return (TIME)0; - } - - /* Month... */ - token = next_token (&val, cfile); - if (token != NUMBER) { - parse_warn ("numeric day of month expected."); - if (token != SEMI) - skip_to_semi (cfile); - return (TIME)0; - } - tm.tm_mday = atoi (val); - - /* Hour... */ - token = next_token (&val, cfile); - if (token != NUMBER) { - parse_warn ("numeric hour expected."); - if (token != SEMI) - skip_to_semi (cfile); - return (TIME)0; - } - tm.tm_hour = atoi (val); - - /* Colon seperating hour from minute... */ - token = next_token (&val, cfile); - if (token != COLON) { - parse_warn ("expected colon seperating hour from minute."); - if (token != SEMI) - skip_to_semi (cfile); - return (TIME)0; - } - - /* Minute... */ - token = next_token (&val, cfile); - if (token != NUMBER) { - parse_warn ("numeric minute expected."); - if (token != SEMI) - skip_to_semi (cfile); - return (TIME)0; - } - tm.tm_min = atoi (val); - - /* Colon seperating minute from second... */ - token = next_token (&val, cfile); - if (token != COLON) { - parse_warn ("expected colon seperating hour from minute."); - if (token != SEMI) - skip_to_semi (cfile); - return (TIME)0; - } - - /* Minute... */ - token = next_token (&val, cfile); - if (token != NUMBER) { - parse_warn ("numeric minute expected."); - if (token != SEMI) - skip_to_semi (cfile); - return (TIME)0; - } - tm.tm_sec = atoi (val); - tm.tm_isdst = 0; - - /* XXX */ /* We assume that mktime does not use tm_yday. */ - tm.tm_yday = 0; - - /* Make sure the date ends in a semicolon... */ - token = next_token (&val, cfile); - if (token != SEMI) { - parse_warn ("semicolon expected."); - skip_to_semi (cfile); - return 0; - } - - /* Guess the time value... */ - guess = ((((((365 * (tm.tm_year - 70) + /* Days in years since '70 */ - (tm.tm_year - 72) / 4 + /* Leap days since '70 */ - (tm.tm_mon /* Days in months this year */ - ? months [tm.tm_mon - 1] - : 0) + - (tm.tm_mon > 1 && /* Leap day this year */ - ((tm.tm_year - 72) & 3)) + - tm.tm_mday) * 24) + /* Day of month */ - tm.tm_hour) * 60) + - tm.tm_min) * 60) + tm.tm_sec; - - /* This guess could be wrong because of leap seconds or other - weirdness we don't know about that the system does. For - now, we're just going to accept the guess, but at some point - it might be nice to do a successive approximation here to - get an exact value. Even if the error is small, if the - server is restarted frequently (and thus the lease database - is reread), the error could accumulate into something - significant. */ - - return guess; -} - -/* No BNF for numeric aggregates - that's defined by the caller. What - this function does is to parse a sequence of numbers seperated by - the token specified in seperator. If max is zero, any number of - numbers will be parsed; otherwise, exactly max numbers are - expected. Base and size tell us how to internalize the numbers - once they've been tokenized. */ - -unsigned char *parse_numeric_aggregate (cfile, buf, - max, seperator, base, size) - FILE *cfile; - unsigned char *buf; - int *max; - int seperator; - int base; - int size; -{ - char *val; - int token; - unsigned char *bufp = buf, *s, *t; - int count = 0; - pair c = (pair)0; - - if (!bufp && *max) { - bufp = (unsigned char *)malloc (*max * size / 8); - if (!bufp) - error ("can't allocate space for numeric aggregate"); - } else - s = bufp; - - do { - if (count) { - token = peek_token (&val, cfile); - if (token != seperator) { - if (!*max) - break; - if (token != RBRACE && token != LBRACE) - token = next_token (&val, cfile); - parse_warn ("too few numbers."); - if (token != SEMI) - skip_to_semi (cfile); - return (unsigned char *)0; - } - token = next_token (&val, cfile); - } - token = next_token (&val, cfile); - - if (token == EOF) { - parse_warn ("unexpected end of file"); - break; - } - - /* Allow NUMBER_OR_NAME if base is 16. */ - if (token != NUMBER && - (base != 16 || token != NUMBER_OR_NAME)) { - parse_warn ("expecting numeric value."); - skip_to_semi (cfile); - return (unsigned char *)0; - } - /* If we can, convert the number now; otherwise, build - a linked list of all the numbers. */ - if (s) { - convert_num (s, val, base, size); - s += size / 8; - } else { - t = (unsigned char *)malloc (strlen (val) + 1); - if (!t) - error ("no temp space for number."); - strcpy (t, val); - c = cons (t, c); - } - } while (++count != *max); - - /* If we had to cons up a list, convert it now. */ - if (c) { - bufp = (unsigned char *)malloc (count * size / 8); - if (!bufp) - error ("can't allocate space for numeric aggregate."); - s = bufp + count - size / 8; - *max = count; - } - while (c) { - pair cdr = c -> cdr; - convert_num (s, (char *)(c -> car), base, size); - s -= size / 8; - /* Free up temp space. */ - free (c -> car); - free (c); - c = cdr; - } - return bufp; -} - -void convert_num (buf, str, base, size) - unsigned char *buf; - char *str; - int base; - int size; -{ - char *ptr = str; - int negative = 0; - u_int32_t val = 0; - int tval; - int max; - - if (*ptr == '-') { - negative = 1; - ++ptr; - } - - /* If base wasn't specified, figure it out from the data. */ - if (!base) { - if (ptr [0] == '0') { - if (ptr [1] == 'x') { - base = 16; - ptr += 2; - } else if (isascii (ptr [1]) && isdigit (ptr [1])) { - base = 8; - ptr += 1; - } else { - base = 10; - } - } else { - base = 10; - } - } - - do { - tval = *ptr++; - /* XXX assumes ASCII... */ - if (tval >= 'a') - tval = tval - 'a' + 10; - else if (tval >= 'A') - tval = tval - 'A' + 10; - else if (tval >= '0') - tval -= '0'; - else { - warn ("Bogus number: %s.", str); - break; - } - if (tval >= base) { - warn ("Bogus number: %s: digit %d not in base %d\n", - str, tval, base); - break; - } - val = val * base + tval; - } while (*ptr); - - if (negative) - max = (1 << (size - 1)); - else - max = (1 << (size - 1)) + ((1 << (size - 1)) - 1); - if (val > max) { - switch (base) { - case 8: - warn ("value %s%o exceeds max (%d) for precision.", - negative ? "-" : "", val, max); - break; - case 16: - warn ("value %s%x exceeds max (%d) for precision.", - negative ? "-" : "", val, max); - break; - default: - warn ("value %s%u exceeds max (%d) for precision.", - negative ? "-" : "", val, max); - break; - } - } - - if (negative) { - switch (size) { - case 8: - *buf = -(unsigned long)val; - break; - case 16: - putShort (buf, -(unsigned long)val); - break; - case 32: - putLong (buf, -(unsigned long)val); - break; - default: - warn ("Unexpected integer size: %d\n", size); - break; - } - } else { - switch (size) { - case 8: - *buf = (u_int8_t)val; - break; - case 16: - putUShort (buf, (u_int16_t)val); - break; - case 32: - putULong (buf, val); - break; - default: - warn ("Unexpected integer size: %d\n", size); - break; - } - } -} diff --git a/server/db.c b/server/db.c deleted file mode 100644 index afdaff2e..00000000 --- a/server/db.c +++ /dev/null @@ -1,212 +0,0 @@ -/* db.c - - Persistent database management routines for DHCPD... */ - -/* - * Copyright (c) 1995, 1996 The Internet Software Consortium. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names - * of its contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This software has been written for the Internet Software Consortium - * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie - * Enterprises. To learn more about the Internet Software Consortium, - * see ``http://www.vix.com/isc''. To learn more about Vixie - * Enterprises, see ``http://www.vix.com''. - */ - -#ifndef lint -static char copyright[] = -"$Id: db.c,v 1.8 1996/09/02 21:16:24 mellon Exp $ Copyright (c) 1995, 1996 The Internet Software Consortium. All rights reserved.\n"; -#endif /* not lint */ - -#include "dhcpd.h" - -FILE *db_file; - -static int counting = 0; -static int count = 0; -TIME write_time; - -/* Write the specified lease to the current lease database file. */ - -int write_lease (lease) - struct lease *lease; -{ - struct tm *t; - char tbuf [64]; - int errors = 0; - - if (counting) - ++count; - errno = 0; - fprintf (db_file, "lease %s {\n", piaddr (lease -> ip_addr)); - if (errno) { - ++errors; - } - - t = gmtime (&lease -> starts); - sprintf (tbuf, "%d %d/%d/%d %02d:%02d:%02d;", - t -> tm_wday, t -> tm_year + 1900, - t -> tm_mon + 1, t -> tm_mday, - t -> tm_hour, t -> tm_min, t -> tm_sec); - errno = 0; - fprintf (db_file, "\tstarts %s\n", tbuf); - if (errno) { - ++errors; - } - - t = gmtime (&lease -> ends); - sprintf (tbuf, "%d %d/%d/%d %02d:%02d:%02d;", - t -> tm_wday, t -> tm_year + 1900, - t -> tm_mon + 1, t -> tm_mday, - t -> tm_hour, t -> tm_min, t -> tm_sec); - errno = 0; - fprintf (db_file, "\tends %s", tbuf); - if (errno) { - ++errors; - } - - if (lease -> hardware_addr.hlen) { - errno = 0; - fprintf (db_file, "\n\thardware %s %s;", - hardware_types [lease -> hardware_addr.htype], - print_hw_addr (lease -> hardware_addr.htype, - lease -> hardware_addr.hlen, - lease -> hardware_addr.haddr)); - if (errno) { - ++errors; - } - } - if (lease -> uid_len) { - int i; - errno = 0; - fprintf (db_file, "\n\tuid %x", lease -> uid [0]); - if (errno) { - ++errors; - } - for (i = 1; i < lease -> uid_len; i++) { - errno = 0; - fprintf (db_file, ":%x", lease -> uid [i]); - if (errno) { - ++errors; - } - } - putc (';', db_file); - } - if (lease -> flags & BOOTP_LEASE) { - errno = 0; - fprintf (db_file, "\n\tdynamic-bootp;"); - if (errno) { - ++errors; - } - } - errno = 0; - fputs ("\n}\n", db_file); - if (errno) { - ++errors; - } - if (errors) - note ("write_lease: unable to write lease %s", - piaddr (lease -> ip_addr)); - return !errors; -} - -/* Commit any leases that have been written out... */ - -int commit_leases () -{ - /* Commit any outstanding writes to the lease database file. - We need to do this even if we're rewriting the file below, - just in case the rewrite fails. */ - if (fflush (db_file) == EOF) { - note ("commit_leases: unable to commit: %m"); - return 0; - } - if (fsync (fileno (db_file)) < 0) { - note ("commit_leases: unable to commit: %m"); - return 0; - } - - /* If we've written more than a thousand leases or if - we haven't rewritten the lease database in over an - hour, rewrite it now. */ - if (count > 1000 || (count && cur_time - write_time > 3600)) { - count = 0; - write_time = cur_time; - new_lease_file (); - } - return 1; -} - -void db_startup () -{ - /* Read in the existing lease file... */ - read_leases (); - - new_lease_file (); -} - -void new_lease_file () -{ - char newfname [512]; - char backfname [512]; - TIME t; - - /* If we already have an open database, close it. */ - if (db_file) { - fclose (db_file); - } - - /* Make a temporary lease file... */ - time (&t); - sprintf (newfname, "%s.%d", path_dhcpd_db, (int) (t & 32767)); - if ((db_file = fopen (newfname, "w")) == NULL) { - error ("Can't start new lease file: %m"); - } - - /* Write out all the leases that we know of... */ - counting = 0; - write_leases (); - - /* Get the old database out of the way... */ - sprintf (backfname, "%s~", path_dhcpd_db); - if (unlink (backfname) < 0 && errno != ENOENT) - error ("Can't remove old lease database backup %s: %m", - backfname); - if (link (path_dhcpd_db, backfname) < 0) - error ("Can't backup lease database %s to %s: %m", - path_dhcpd_db, backfname); - - /* Move in the new file... */ - if (rename (newfname, path_dhcpd_db) < 0) - error ("Can't install new lease database %s to %s: %m", - newfname, path_dhcpd_db); - - counting = 1; -} diff --git a/server/dhcp.c b/server/dhcp.c deleted file mode 100644 index fc5e2e1a..00000000 --- a/server/dhcp.c +++ /dev/null @@ -1,1162 +0,0 @@ -/* dhcp.c - - DHCP Protocol engine. */ - -/* - * Copyright (c) 1995, 1996 The Internet Software Consortium. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names - * of its contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This software has been written for the Internet Software Consortium - * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie - * Enterprises. To learn more about the Internet Software Consortium, - * see ``http://www.vix.com/isc''. To learn more about Vixie - * Enterprises, see ``http://www.vix.com''. - */ - -#ifndef lint -static char copyright[] = -"$Id: dhcp.c,v 1.34 1996/09/11 05:52:18 mellon Exp $ Copyright (c) 1995, 1996 The Internet Software Consortium. All rights reserved.\n"; -#endif /* not lint */ - -#include "dhcpd.h" - -static unsigned char dhcp_message [256]; - -void dhcp (packet) - struct packet *packet; -{ - if (!locate_network (packet)) - return; - - switch (packet -> packet_type) { - case DHCPDISCOVER: - dhcpdiscover (packet); - break; - - case DHCPREQUEST: - dhcprequest (packet); - break; - - case DHCPRELEASE: - dhcprelease (packet); - break; - - case DHCPDECLINE: - dhcpdecline (packet); - break; - - case DHCPINFORM: - dhcpinform (packet); - break; - - default: - break; - } -} - -void dhcpdiscover (packet) - struct packet *packet; -{ - struct lease *lease = find_lease (packet, packet -> shared_network); - struct host_decl *hp; - - note ("DHCPDISCOVER from %s via %s", - print_hw_addr (packet -> raw -> htype, - packet -> raw -> hlen, - packet -> raw -> chaddr), - packet -> raw -> giaddr.s_addr - ? inet_ntoa (packet -> raw -> giaddr) - : packet -> interface -> name); - - /* Sourceless packets don't make sense here. */ - if (!packet -> shared_network) { - note ("Packet from unknown subnet: %s", - inet_ntoa (packet -> raw -> giaddr)); - return; - } - - /* If we didn't find a lease, try to allocate one... */ - if (!lease) { - lease = packet -> shared_network -> last_lease; - - /* If there are no leases in that subnet that have - expired, we have nothing to offer this client. */ - if (!lease || lease -> ends > cur_time) { - note ("no free leases on subnet %s", - packet -> shared_network -> name); - return; - } - - /* Try to find a host_decl that matches the client - identifier or hardware address on the packet, and - has no fixed IP address. If there is one, hang - it off the lease so that its option definitions - can be used. */ - if (((packet -> options [DHO_DHCP_CLIENT_IDENTIFIER].len - != 0) && - ((hp = find_hosts_by_uid - (packet -> options [DHO_DHCP_CLIENT_IDENTIFIER].data, - packet -> options [DHO_DHCP_CLIENT_IDENTIFIER].len)) - != (struct host_decl *)0)) || - ((hp = find_hosts_by_haddr (packet -> raw -> htype, - packet -> raw -> chaddr, - packet -> raw -> hlen)) - != (struct host_decl *)0)) { - for (; hp; hp = hp -> n_ipaddr) { - if (!hp -> fixed_addr) { - lease -> host = hp; - break; - } - } - } else { - lease -> host = (struct host_decl *)0; - } - } - - /* If this subnet won't boot unknown clients, ignore the - request. */ - if (!lease -> host && - !lease -> subnet -> group -> boot_unknown_clients) { - note ("Ignoring unknown client %s", - print_hw_addr (packet -> raw -> htype, - packet -> raw -> hlen, - packet -> raw -> chaddr)); - } else - ack_lease (packet, lease, DHCPOFFER, cur_time + 120); -} - -void dhcprequest (packet) - struct packet *packet; -{ - struct lease *lease; - struct iaddr cip; - struct subnet *subnet; - - if (packet -> options [DHO_DHCP_REQUESTED_ADDRESS].len) { - cip.len = 4; - memcpy (cip.iabuf, - packet -> options [DHO_DHCP_REQUESTED_ADDRESS].data, - 4); - } else { - cip.len = 4; - memcpy (cip.iabuf, &packet -> raw -> ciaddr.s_addr, 4); - } - - /* Find the lease that matches the address requested by the - client. */ - subnet = find_subnet (cip); - lease = find_lease (packet, (subnet - ? subnet -> shared_network - : (struct shared_network *)0)); - - note ("DHCPREQUEST for %s from %s via %s", - piaddr (cip), - print_hw_addr (packet -> raw -> htype, - packet -> raw -> hlen, - packet -> raw -> chaddr), - packet -> raw -> giaddr.s_addr - ? inet_ntoa (packet -> raw -> giaddr) - : packet -> interface -> name); - - - /* If a client on a given network wants to request a lease on - an address on a different network, NAK it. If the Requested - Address option was used, the protocol says that it must have - been broadcast, so we can trust the source network information. - - If ciaddr was specified and Requested Address was not, then - we really only know for sure what network a packet came from - if it came through a BOOTP gateway - if it came through an - IP router, we'll just have to assume that it's cool. - - This violates the protocol spec in the case that the client - is in the REBINDING state and broadcasts a DHCPREQUEST on - the local wire. We're supposed to check ciaddr for - validity in that case, but if the packet was unicast - through a router from a client in the RENEWING state, it - would look exactly the same to us and it would be very - bad to send a DHCPNAK. I think we just have to live with - this. */ - if ((packet -> raw -> ciaddr.s_addr && - packet -> raw -> giaddr.s_addr) || - packet -> options [DHO_DHCP_REQUESTED_ADDRESS].len) { - - /* If we don't know where it came from but we do know - where it claims to have come from, it didn't come - from there. Fry it. */ - if (!packet -> shared_network) { - if (subnet) { - nak_lease (packet, &cip); - return; - } - /* Otherwise, ignore it. */ - return; - } - - /* If we do know where it came from and we don't know - where it claims to have come from, same deal - fry it. */ - subnet = find_grouped_subnet (packet -> shared_network, cip); - if (!subnet) { - nak_lease (packet, &cip); - return; - } - } - - /* If we own the lease that the client is asking for, - and it's already been assigned to the client, ack it. */ - if (lease && - ((lease -> uid_len && lease -> uid_len == - packet -> options [DHO_DHCP_CLIENT_IDENTIFIER].len && - !memcmp (packet -> options - [DHO_DHCP_CLIENT_IDENTIFIER].data, - lease -> uid, lease -> uid_len)) || - (lease -> hardware_addr.hlen == packet -> raw -> hlen && - lease -> hardware_addr.htype == packet -> raw -> htype && - !memcmp (lease -> hardware_addr.haddr, - packet -> raw -> chaddr, - packet -> raw -> hlen)))) { - ack_lease (packet, lease, DHCPACK, 0); - return; - } - - /* Otherwise, if we have a lease for this client, - release it, and in any case don't reply to the - DHCPREQUEST. */ - if (packet -> options [DHO_DHCP_SERVER_IDENTIFIER].len - && memcmp (packet -> - options [DHO_DHCP_SERVER_IDENTIFIER].data, - server_identifier.iabuf, - server_identifier.len)) { - if (lease) - release_lease (lease); - return; - } -} - -void dhcprelease (packet) - struct packet *packet; -{ - struct lease *lease = find_lease (packet, packet -> shared_network); - - note ("DHCPRELEASE of %s from %s via %s", - inet_ntoa (packet -> raw -> ciaddr), - print_hw_addr (packet -> raw -> htype, - packet -> raw -> hlen, - packet -> raw -> chaddr), - packet -> raw -> giaddr.s_addr - ? inet_ntoa (packet -> raw -> giaddr) - : packet -> interface -> name); - - - /* If we found a lease, release it. */ - if (lease) { - release_lease (lease); - } -} - -void dhcpdecline (packet) - struct packet *packet; -{ - struct lease *lease = find_lease (packet, packet -> shared_network); - struct iaddr cip; - - if (packet -> options [DHO_DHCP_REQUESTED_ADDRESS].len) { - cip.len = 4; - memcpy (cip.iabuf, - packet -> options [DHO_DHCP_REQUESTED_ADDRESS].data, - 4); - } else { - cip.len = 0; - } - - note ("DHCPDECLINE on %s from %s via %s", - piaddr (cip), - print_hw_addr (packet -> raw -> htype, - packet -> raw -> hlen, - packet -> raw -> chaddr), - packet -> raw -> giaddr.s_addr - ? inet_ntoa (packet -> raw -> giaddr) - : packet -> interface -> name); - - - /* If we found a lease, mark it as unusable and complain. */ - if (lease) { - abandon_lease (lease); - } -} - -void dhcpinform (packet) - struct packet *packet; -{ - note ("DHCPINFORM from %s", - inet_ntoa (packet -> raw -> ciaddr)); -} - -void nak_lease (packet, cip) - struct packet *packet; - struct iaddr *cip; -{ - struct sockaddr_in to; - struct in_addr from; - int result; - struct dhcp_packet raw; - unsigned char nak = DHCPNAK; - struct packet outgoing; - struct hardware hto; - - struct tree_cache *options [256]; - struct tree_cache dhcpnak_tree; - struct tree_cache dhcpmsg_tree; - - memset (options, 0, sizeof options); - memset (&outgoing, 0, sizeof outgoing); - memset (&raw, 0, sizeof raw); - outgoing.raw = &raw; - - /* Set DHCP_MESSAGE_TYPE to DHCPNAK */ - options [DHO_DHCP_MESSAGE_TYPE] = &dhcpnak_tree; - options [DHO_DHCP_MESSAGE_TYPE] -> value = &nak; - options [DHO_DHCP_MESSAGE_TYPE] -> len = sizeof nak; - options [DHO_DHCP_MESSAGE_TYPE] -> buf_size = sizeof nak; - options [DHO_DHCP_MESSAGE_TYPE] -> timeout = 0xFFFFFFFF; - options [DHO_DHCP_MESSAGE_TYPE] -> tree = (struct tree *)0; - - /* Set DHCP_MESSAGE to whatever the message is */ - options [DHO_DHCP_MESSAGE] = &dhcpmsg_tree; - options [DHO_DHCP_MESSAGE] -> value = dhcp_message; - options [DHO_DHCP_MESSAGE] -> len = strlen (dhcp_message); - options [DHO_DHCP_MESSAGE] -> buf_size = strlen (dhcp_message); - options [DHO_DHCP_MESSAGE] -> timeout = 0xFFFFFFFF; - options [DHO_DHCP_MESSAGE] -> tree = (struct tree *)0; - - /* Do not use the client's requested parameter list. */ - packet -> options [DHO_DHCP_PARAMETER_REQUEST_LIST].len = 0; - packet -> options [DHO_DHCP_PARAMETER_REQUEST_LIST].data = - (unsigned char *)0; - - /* Set up the option buffer... */ - cons_options (packet, &outgoing, options, 0, 0); - -/* memset (&raw.ciaddr, 0, sizeof raw.ciaddr);*/ - memcpy (&raw.siaddr, server_identifier.iabuf, 4); - raw.giaddr = packet -> raw -> giaddr; - memcpy (raw.chaddr, packet -> raw -> chaddr, sizeof raw.chaddr); - raw.hlen = packet -> raw -> hlen; - raw.htype = packet -> raw -> htype; - - raw.xid = packet -> raw -> xid; - raw.secs = packet -> raw -> secs; - raw.flags = packet -> raw -> flags | htons (BOOTP_BROADCAST); - raw.hops = packet -> raw -> hops; - raw.op = BOOTREPLY; - - /* Report what we're sending... */ - note ("DHCPNAK on %s to %s via %s", - piaddr (*cip), - print_hw_addr (packet -> raw -> htype, - packet -> raw -> hlen, - packet -> raw -> chaddr), - packet -> raw -> giaddr.s_addr - ? inet_ntoa (packet -> raw -> giaddr) - : packet -> interface -> name); - - - -#ifdef DEBUG_PACKET - dump_packet (packet); - dump_raw ((unsigned char *)packet -> raw, packet -> packet_length); - dump_packet (&outgoing); - dump_raw ((unsigned char *)&raw, outgoing.packet_length); -#endif - - hto.htype = packet -> raw -> htype; - hto.hlen = packet -> raw -> hlen; - memcpy (hto.haddr, packet -> raw -> chaddr, hto.hlen); - - /* Set up the common stuff... */ - to.sin_family = AF_INET; -#ifdef HAVE_SA_LEN - to.sin_len = sizeof to; -#endif - memset (to.sin_zero, 0, sizeof to.sin_zero); - - if (server_identifier.len) - memcpy (&from, server_identifier.iabuf, 4); - else - memset (&from, 0, 4); - - /* If this was gatewayed, send it back to the gateway. - Otherwise, broadcast it on the local network. */ - if (raw.giaddr.s_addr) { - to.sin_addr = raw.giaddr; - to.sin_port = server_port; - - if (outgoing.packet_length < BOOTP_MIN_LEN) - outgoing.packet_length = BOOTP_MIN_LEN; - -#ifdef USE_FALLBACK - result = send_fallback (&fallback_interface, - packet, &raw, outgoing.packet_length, - from, &to, &hto); - if (result < 0) - warn ("send_fallback: %m"); - return; -#endif - } else { - to.sin_addr.s_addr = htonl (INADDR_BROADCAST); - to.sin_port = packet->client_port; - } - - errno = 0; - result = send_packet (packet -> interface, - packet, &raw, outgoing.packet_length, - from, &to, (struct hardware *)0); - if (result < 0) - warn ("send_packet: %m"); -} - -void ack_lease (packet, lease, offer, when) - struct packet *packet; - struct lease *lease; - unsigned char offer; - TIME when; -{ - struct lease lt; - TIME lease_time; - TIME offered_lease_time; - - int bufs = 0; - struct packet outgoing; - struct dhcp_packet raw; - struct tree_cache *options [256]; - struct sockaddr_in to; - struct in_addr from; - struct hardware hto; - int result; - - unsigned char lease_time_buf [4]; - unsigned char lease_t1_buf [4]; - unsigned char lease_t2_buf [4]; - struct tree_cache lease_time_tree; - struct tree_cache lease_t1_tree; - struct tree_cache lease_t2_tree; - struct tree_cache dhcpoffer_tree; - struct tree_cache server_id_tree; - struct tree_cache vendor_class_tree; - struct tree_cache user_class_tree; - struct tree_cache hostname_tree; - struct tree_cache netmask_tree; - - struct class *vendor_class, *user_class; - char *filename; - char *server_name; - int i; - - if (packet -> options [DHO_DHCP_CLASS_IDENTIFIER].len) { - vendor_class = - find_class (0, - packet -> - options [DHO_DHCP_CLASS_IDENTIFIER].data, - packet -> - options [DHO_DHCP_CLASS_IDENTIFIER].len); - } else { - vendor_class = (struct class *)0; - } - - if (packet -> options [DHO_DHCP_USER_CLASS_ID].len) { - user_class = - find_class (0, - packet -> - options [DHO_DHCP_USER_CLASS_ID].data, - packet -> - options [DHO_DHCP_USER_CLASS_ID].len); - } else { - user_class = (struct class *)0; - } - - /* Choose a filename; first from the host_decl, if any, then from - the user class, then from the vendor class. */ - if (lease -> host && lease -> host -> group -> filename) - filename = lease -> host -> group -> filename; - else if (user_class && user_class -> group -> filename) - filename = user_class -> group -> filename; - else if (vendor_class && vendor_class -> group -> filename) - filename = vendor_class -> group -> filename; - else filename = (char *)0; - - /* Choose a server name as above. */ - if (lease -> host && lease -> host -> group -> server_name) - server_name = lease -> host -> group -> server_name; - else if (user_class && user_class -> group -> server_name) - server_name = user_class -> group -> server_name; - else if (vendor_class && vendor_class -> group -> server_name) - server_name = vendor_class -> group -> server_name; - else server_name = (char *)0; - - /* At this point, we have a lease that we can offer the client. - Now we construct a lease structure that contains what we want, - and call supersede_lease to do the right thing with it. */ - - memset (<, 0, sizeof lt); - - /* Use the ip address of the lease that we finally found in - the database. */ - lt.ip_addr = lease -> ip_addr; - - /* Start now. */ - lt.starts = cur_time; - - /* Figure out how long a lease to assign. If this is a - dynamic BOOTP lease, its duration must be infinite. */ - if (offer) { - if (packet -> options [DHO_DHCP_LEASE_TIME].len == 4) { - lease_time = getULong - (packet -> options [DHO_DHCP_LEASE_TIME].data); - - /* Don't let the client ask for a longer lease than - is supported for this subnet or host. */ - if (lease -> host && - lease -> host -> group -> max_lease_time) { - if (lease_time > - lease -> host -> group -> max_lease_time) - lease_time = (lease -> host -> - group -> max_lease_time); - } else { - if (lease_time > - lease -> subnet -> group -> max_lease_time) - lease_time = (lease -> subnet -> - group -> max_lease_time); - } - } else { - if (lease -> host - && lease -> host -> group -> default_lease_time) - lease_time = (lease -> host -> - group -> default_lease_time); - else - lease_time = (lease -> subnet -> - group -> default_lease_time); - } - - lt.offered_expiry = cur_time + lease_time; - if (when) - lt.ends = when; - else - lt.ends = lt.offered_expiry; - } else { - if (lease -> host && - lease -> host -> group -> bootp_lease_length) - lt.ends = (cur_time + - lease -> host -> - group -> bootp_lease_length); - else if (lease -> subnet -> group -> bootp_lease_length) - lt.ends = (cur_time + - lease -> subnet -> - group -> bootp_lease_length); - else if (lease -> host && - lease -> host -> group -> bootp_lease_cutoff) - lt.ends = lease -> host -> group -> bootp_lease_cutoff; - else - lt.ends = (lease -> subnet -> - group -> bootp_lease_cutoff); - lt.offered_expiry = lt.ends; - lt.flags = BOOTP_LEASE; - } - - lt.timestamp = cur_time; - - /* Record the uid, if given... */ - if (packet -> options [DHO_DHCP_CLIENT_IDENTIFIER].len) { - lt.uid_len = - packet -> options [DHO_DHCP_CLIENT_IDENTIFIER].len; - lt.uid = packet -> options [DHO_DHCP_CLIENT_IDENTIFIER].data; - packet -> options [DHO_DHCP_CLIENT_IDENTIFIER].data = - (unsigned char *)0; - packet -> options [DHO_DHCP_CLIENT_IDENTIFIER].len = 0; - } - - /* Record the hardware address, if given... */ - lt.hardware_addr.hlen = packet -> raw -> hlen; - lt.hardware_addr.htype = packet -> raw -> htype; - memcpy (lt.hardware_addr.haddr, packet -> raw -> chaddr, - packet -> raw -> hlen); - - lt.host = lease -> host; - lt.subnet = lease -> subnet; - lt.shared_network = lease -> shared_network; - - /* Record the transaction id... */ - lt.xid = packet -> raw -> xid; - - /* Don't call supersede_lease on a mocked-up lease. */ - if (lease -> flags & STATIC_LEASE) - ; - else - /* Install the new information about this lease in the database. - If this is a DHCPACK or a dynamic BOOTREPLY and we can't write - the lease, don't ACK it (or BOOTREPLY it) either. */ - if (!(supersede_lease (lease, <, !offer || offer == DHCPACK) - || (offer && offer != DHCPACK))) - return; - - /* Send a response to the client... */ - - memset (&outgoing, 0, sizeof outgoing); - memset (&raw, 0, sizeof raw); - outgoing.raw = &raw; - - /* Copy in the filename if given; otherwise, flag the filename - buffer as available for options. */ - if (filename) - strncpy (raw.file, filename, sizeof raw.file); - else - bufs |= 1; - - /* Copy in the server name if given; otherwise, flag the - server_name buffer as available for options. */ - if (server_name) - strncpy (raw.sname, server_name, sizeof raw.sname); - else - bufs |= 2; /* XXX */ - - memcpy (raw.chaddr, packet -> raw -> chaddr, packet -> raw -> hlen); - raw.hlen = packet -> raw -> hlen; - raw.htype = packet -> raw -> htype; - - /* Start out with the subnet options... */ - memcpy (options, lease -> subnet -> group -> options, sizeof options); - - /* Vendor and user classes are only supported for DHCP clients. */ - if (offer) { - /* If we have a vendor class, install those options, - superseding any subnet options. */ - if (vendor_class) { - for (i = 0; i < 256; i++) - if (vendor_class -> group -> options [i]) - options [i] = (vendor_class -> group -> - options [i]); - } - - /* If we have a user class, install those options, - superseding any subnet and vendor class options. */ - if (user_class) { - for (i = 0; i < 256; i++) - if (user_class -> group -> options [i]) - options [i] = (user_class -> group -> - options [i]); - } - - } - - /* If we have a host_decl structure, install the associated - options, superseding anything that's in the way. */ - if (lease -> host) { - for (i = 0; i < 256; i++) - if (lease -> host -> group -> options [i]) - options [i] = (lease -> host -> - group -> options [i]); - } - - /* If we didn't get a hostname from an option somewhere, see if - we can get one from the lease. */ - if (!options [DHO_HOST_NAME] && lease -> hostname) { - options [DHO_HOST_NAME] = &hostname_tree; - options [DHO_HOST_NAME] -> value = - (unsigned char *)lease -> hostname; - options [DHO_HOST_NAME] -> buf_size = - options [DHO_HOST_NAME] -> len = - strlen (lease -> hostname); - options [DHO_HOST_NAME] -> timeout = 0xFFFFFFFF; - options [DHO_HOST_NAME] -> tree = (struct tree *)0; - } - - /* Now, if appropriate, put in DHCP-specific options that - override those. */ - if (offer) { - options [DHO_DHCP_MESSAGE_TYPE] = &dhcpoffer_tree; - options [DHO_DHCP_MESSAGE_TYPE] -> value = &offer; - options [DHO_DHCP_MESSAGE_TYPE] -> len = sizeof offer; - options [DHO_DHCP_MESSAGE_TYPE] -> buf_size = sizeof offer; - options [DHO_DHCP_MESSAGE_TYPE] -> timeout = 0xFFFFFFFF; - options [DHO_DHCP_MESSAGE_TYPE] -> tree = (struct tree *)0; - - options [DHO_DHCP_SERVER_IDENTIFIER] = &server_id_tree; - options [DHO_DHCP_SERVER_IDENTIFIER] -> - value = server_identifier.iabuf; - options [DHO_DHCP_SERVER_IDENTIFIER] -> - len = server_identifier.len; - options [DHO_DHCP_SERVER_IDENTIFIER] -> - buf_size = server_identifier.len; - options [DHO_DHCP_SERVER_IDENTIFIER] -> - timeout = 0xFFFFFFFF; - options [DHO_DHCP_SERVER_IDENTIFIER] -> - tree = (struct tree *)0; - - /* Sanity check the lease time. */ - if ((lease->offered_expiry - cur_time) < 15) - offered_lease_time = (lease -> subnet -> - group -> default_lease_time); - else if (lease -> offered_expiry - cur_time > - lease -> subnet -> group -> max_lease_time) - offered_lease_time = (lease -> subnet -> - group -> max_lease_time); - else - offered_lease_time = - lease -> offered_expiry - cur_time; - - putULong (lease_time_buf, offered_lease_time); - options [DHO_DHCP_LEASE_TIME] = &lease_time_tree; - options [DHO_DHCP_LEASE_TIME] -> value = lease_time_buf; - options [DHO_DHCP_LEASE_TIME] -> len = sizeof lease_time_buf; - options [DHO_DHCP_LEASE_TIME] -> - buf_size = sizeof lease_time_buf; - options [DHO_DHCP_LEASE_TIME] -> timeout = 0xFFFFFFFF; - options [DHO_DHCP_LEASE_TIME] -> tree = (struct tree *)0; - - /* Renewal time is lease time * 0.5. */ - offered_lease_time /= 2; - putULong (lease_t1_buf, offered_lease_time); - options [DHO_DHCP_RENEWAL_TIME] = &lease_t1_tree; - options [DHO_DHCP_RENEWAL_TIME] -> value = lease_t1_buf; - options [DHO_DHCP_RENEWAL_TIME] -> len = sizeof lease_t1_buf; - options [DHO_DHCP_RENEWAL_TIME] -> - buf_size = sizeof lease_t1_buf; - options [DHO_DHCP_RENEWAL_TIME] -> timeout = 0xFFFFFFFF; - options [DHO_DHCP_RENEWAL_TIME] -> tree = (struct tree *)0; - - /* Rebinding time is lease time * 0.875. */ - offered_lease_time += (offered_lease_time / 2 - + offered_lease_time / 4); - putULong (lease_t2_buf, offered_lease_time); - options [DHO_DHCP_REBINDING_TIME] = &lease_t2_tree; - options [DHO_DHCP_REBINDING_TIME] -> value = lease_t2_buf; - options [DHO_DHCP_REBINDING_TIME] -> len = sizeof lease_t2_buf; - options [DHO_DHCP_REBINDING_TIME] -> - buf_size = sizeof lease_t2_buf; - options [DHO_DHCP_REBINDING_TIME] -> timeout = 0xFFFFFFFF; - options [DHO_DHCP_REBINDING_TIME] -> tree = (struct tree *)0; - - /* If we used the vendor class the client specified, we - have to return it. */ - if (vendor_class) { - options [DHO_DHCP_CLASS_IDENTIFIER] = - &vendor_class_tree; - options [DHO_DHCP_CLASS_IDENTIFIER] -> - value = (unsigned char *)vendor_class -> name; - options [DHO_DHCP_CLASS_IDENTIFIER] -> - len = strlen (vendor_class -> name); - options [DHO_DHCP_CLASS_IDENTIFIER] -> - buf_size = strlen (vendor_class -> name); - options [DHO_DHCP_CLASS_IDENTIFIER] -> - timeout = 0xFFFFFFFF; - options [DHO_DHCP_CLASS_IDENTIFIER] -> - tree = (struct tree *)0; - } - - /* If we used the user class the client specified, we - have to return it. */ - if (user_class) { - options [DHO_DHCP_USER_CLASS_ID] = &user_class_tree; - options [DHO_DHCP_USER_CLASS_ID] -> - value = (unsigned char *)user_class -> name; - options [DHO_DHCP_USER_CLASS_ID] -> - len = strlen (user_class -> name); - options [DHO_DHCP_USER_CLASS_ID] -> - buf_size = strlen (user_class -> name); - options [DHO_DHCP_USER_CLASS_ID] -> - timeout = 0xFFFFFFFF; - options [DHO_DHCP_USER_CLASS_ID] -> - tree = (struct tree *)0; - } - } - - /* Use the subnet mask from the subnet declaration if no other - mask has been provided. */ - if (!options [DHO_SUBNET_MASK]) { - options [DHO_SUBNET_MASK] = &netmask_tree; - netmask_tree.value = lease -> subnet -> netmask.iabuf; - netmask_tree.len = lease -> subnet -> netmask.len; - netmask_tree.buf_size = lease -> subnet -> netmask.len; - netmask_tree.timeout = 0xFFFFFFFF; - netmask_tree.tree = (struct tree *)0; - } - - /* See if this is a Microsoft client that NUL-terminates its - strings and expects us to do likewise... */ - if (packet -> options [DHO_HOST_NAME].data && - packet -> options [DHO_HOST_NAME].data - [packet -> options [DHO_HOST_NAME].len - 1] == '\0') - cons_options (packet, &outgoing, options, bufs, 1); - else - cons_options (packet, &outgoing, options, bufs, 0); - if (!offer && outgoing.packet_length < BOOTP_MIN_LEN) - outgoing.packet_length = BOOTP_MIN_LEN; - - raw.ciaddr = packet -> raw -> ciaddr; - memcpy (&raw.yiaddr, lease -> ip_addr.iabuf, 4); - - /* Figure out the address of the next server. */ - if (lease -> host && lease -> host -> group -> next_server.len) - memcpy (&raw.siaddr, - lease -> host -> group -> next_server.iabuf, 4); - else if (lease -> subnet -> group -> next_server.len) - memcpy (&raw.siaddr, - lease -> subnet -> group -> next_server.iabuf, 4); - else if (lease -> subnet -> interface_address.len) - memcpy (&raw.siaddr, - lease -> subnet -> interface_address.iabuf, 4); - else - memcpy (&raw.siaddr, server_identifier.iabuf, 4); - - raw.giaddr = packet -> raw -> giaddr; - - raw.xid = packet -> raw -> xid; - raw.secs = packet -> raw -> secs; - raw.flags = packet -> raw -> flags; - raw.hops = packet -> raw -> hops; - raw.op = BOOTREPLY; - - /* Say what we're doing... */ - note ("%s on %s to %s via %s", - (offer - ? (offer == DHCPACK ? "DHCPACK" : "DHCPOFFER") - : "BOOTREPLY"), - piaddr (lease -> ip_addr), - print_hw_addr (packet -> raw -> htype, - packet -> raw -> hlen, - packet -> raw -> chaddr), - packet -> raw -> giaddr.s_addr - ? inet_ntoa (packet -> raw -> giaddr) - : packet -> interface -> name); - - /* Set up the hardware address... */ - hto.htype = packet -> raw -> htype; - hto.hlen = packet -> raw -> hlen; - memcpy (hto.haddr, packet -> raw -> chaddr, hto.hlen); - - to.sin_family = AF_INET; -#ifdef HAVE_SA_LEN - to.sin_len = sizeof to; -#endif - memset (to.sin_zero, 0, sizeof to.sin_zero); - - if (server_identifier.len) - memcpy (&from, server_identifier.iabuf, 4); - else - memset (&from, 0, 4); - -#ifdef DEBUG_PACKET - dump_packet (packet); - dump_raw ((unsigned char *)packet -> raw, packet -> packet_length); - dump_packet (&outgoing); - dump_raw ((unsigned char *)&raw, outgoing.packet_length); -#endif - - /* If this was gatewayed, send it back to the gateway... */ - if (raw.giaddr.s_addr) { - to.sin_addr = raw.giaddr; - to.sin_port = server_port; - - if (outgoing.packet_length < BOOTP_MIN_LEN) - outgoing.packet_length = BOOTP_MIN_LEN; - -#ifdef USE_FALLBACK - result = send_fallback (&fallback_interface, - packet, &raw, outgoing.packet_length, - raw.siaddr, &to, &hto); - if (result < 0) - warn ("send_fallback: %m"); - return; -#endif - - /* If it comes from a client who already knows its address and - is not requesting a broadcast response, sent it directly to - that client. */ - } else if (raw.ciaddr.s_addr && offer == DHCPACK && - !(raw.flags & BOOTP_BROADCAST)) { - to.sin_addr = packet -> raw -> ciaddr; - to.sin_port = htons (ntohs (server_port) + 1); /* XXX */ - -#ifdef USE_FALLBACK - result = send_fallback (&fallback_interface, - packet, &raw, outgoing.packet_length, - raw.siaddr, &to, &hto); - if (result < 0) - warn ("send_fallback: %m"); - return; -#endif - - /* Otherwise, broadcast it on the local network. */ - } else { - to.sin_addr.s_addr = htonl (INADDR_BROADCAST); - to.sin_port = htons (ntohs (server_port) + 1); /* XXX */ - } - - - result = send_packet (packet -> interface, - packet, &raw, outgoing.packet_length, - raw.siaddr, &to, &hto); - if (result < 0) - warn ("sendpkt: %m"); -} - -struct lease *find_lease (packet, share) - struct packet *packet; - struct shared_network *share; -{ - struct lease *uid_lease, *ip_lease, *hw_lease; - struct lease *lease = (struct lease *)0; - struct iaddr cip; - struct host_decl *hp, *host = (struct host_decl *)0; - struct lease *fixed_lease; - - /* Try to find a host or lease that's been assigned to the - specified unique client identifier. */ - if (packet -> options [DHO_DHCP_CLIENT_IDENTIFIER].len) { - /* First, try to find a fixed host entry for the specified - client identifier... */ - hp = find_hosts_by_uid (packet -> options - [DHO_DHCP_CLIENT_IDENTIFIER].data, - packet -> options - [DHO_DHCP_CLIENT_IDENTIFIER].len); - if (hp) { - host = hp; - fixed_lease = mockup_lease (packet, share, hp); - uid_lease = (struct lease *)0; - } else { - uid_lease = find_lease_by_uid - (packet -> options - [DHO_DHCP_CLIENT_IDENTIFIER].data, - packet -> options - [DHO_DHCP_CLIENT_IDENTIFIER].len); - /* Find the lease matching this uid that's on the - network the packet came from (if any). */ - for (; uid_lease; uid_lease = uid_lease -> n_uid) - if (uid_lease -> shared_network == share) - break; - fixed_lease = (struct lease *)0; - } - } else { - uid_lease = (struct lease *)0; - fixed_lease = (struct lease *)0; - } - - /* If we didn't find a fixed lease using the uid, try doing - it with the hardware address... */ - if (!fixed_lease) { - hp = find_hosts_by_haddr (packet -> raw -> htype, - packet -> raw -> chaddr, - packet -> raw -> hlen); - if (hp) { - host = hp; /* Save it for later. */ - fixed_lease = mockup_lease (packet, share, hp); - } - } - - /* Try to find a lease that's been attached to the client's - hardware address... */ - hw_lease = find_lease_by_hw_addr (packet -> raw -> chaddr, - packet -> raw -> hlen); - /* Find the lease that's on the network the packet came from - (if any). */ - for (; hw_lease; hw_lease = hw_lease -> n_hw) - if (hw_lease -> shared_network == share) - break; - - /* Try to find a lease that's been allocated to the client's - IP address. */ - if (packet -> options [DHO_DHCP_REQUESTED_ADDRESS].len && - packet -> options [DHO_DHCP_REQUESTED_ADDRESS].len == 4) { - cip.len = 4; - memcpy (cip.iabuf, - packet -> options [DHO_DHCP_REQUESTED_ADDRESS].data, - cip.len); - ip_lease = find_lease_by_ip_addr (cip); - } else if (packet -> raw -> ciaddr.s_addr) { - cip.len = 4; - memcpy (cip.iabuf, &packet -> raw -> ciaddr, 4); - ip_lease = find_lease_by_ip_addr (cip); - } else - ip_lease = (struct lease *)0; - - /* If the requested IP address isn't on the network the packet - came from, don't use it (this is probably taken care of at - a higher level, but it's cheap to make sure here too). */ - if (ip_lease && ip_lease -> shared_network != share) - ip_lease = (struct lease *)0; - - /* Toss ip_lease if it hasn't yet expired and the uid doesn't - match */ - if (ip_lease && - ip_lease -> ends >= cur_time && - ip_lease -> uid && ip_lease != uid_lease) - ip_lease = (struct lease *)0; - - /* Toss hw_lease if it hasn't yet expired and the uid doesn't - match, except that if the hardware address matches and the - client is now doing dynamic BOOTP (and thus hasn't provided - a uid) we let the client get away with it. */ - if (hw_lease && - hw_lease -> ends >= cur_time && - hw_lease -> uid && hw_lease != uid_lease && - (packet -> packet_type != 0 || - !(hw_lease -> flags & DYNAMIC_BOOTP_OK))) - hw_lease = (struct lease *)0; - - /* Toss extra pointers to the same lease... */ - if (ip_lease == hw_lease) - ip_lease = (struct lease *)0; - if (hw_lease == uid_lease) - hw_lease = (struct lease *)0; - if (ip_lease == uid_lease) - ip_lease = (struct lease *)0; - - /* If we got an ip address lease, make sure it isn't assigned to - some *other* client! If it was assigned to this client, we'd - have zeroed it out above, so the only way we can take it at this - point is if some other client had it but it's timed out, or if no - other client has ever had it. */ - if (ip_lease && - ip_lease -> ends >= cur_time) - ip_lease = (struct lease *)0; - - /* If we've already eliminated the lease, it wasn't there to - begin with. If we have come up with a matching lease, - set the message to bad network in case we have to throw it out. */ - if (!ip_lease && !hw_lease && !uid_lease) { - strcpy (dhcp_message, "requested address not available"); - } else { - strcpy (dhcp_message, "requested address on bad subnet"); - } - - /* Now eliminate leases that are on the wrong network... */ - if (ip_lease && - (share != ip_lease -> shared_network)) { - release_lease (ip_lease); - ip_lease = (struct lease *)0; - } - if (uid_lease && - (share != uid_lease -> shared_network)) { - release_lease (uid_lease); - uid_lease = (struct lease *)0; - } - if (hw_lease && - (share != hw_lease -> shared_network)) { - release_lease (hw_lease); - hw_lease = (struct lease *)0; - } - - /* At this point, if fixed_lease is nonzero, we can assign it to - this client. */ - if (fixed_lease) { - lease = fixed_lease; - } - - /* If we got a lease that matched the ip address and don't have - a better offer, use that; otherwise, release it. */ - if (ip_lease) { - if (lease) { - release_lease (ip_lease); - } else { - lease = ip_lease; - lease -> host = (struct host_decl *)0; - } - } - - /* If we got a lease that matched the client identifier, we may want - to use it, but if we already have a lease we like, we must free - the lease that matched the client identifier. */ - if (uid_lease) { - if (lease) { - release_lease (uid_lease); - } else { - lease = uid_lease; - lease -> host = (struct host_decl *)0; - } - } - - /* The lease that matched the hardware address is treated likewise. */ - if (hw_lease) { - if (lease) { - release_lease (hw_lease); - } else { - lease = hw_lease; - lease -> host = (struct host_decl *)0; - } - } - - /* If we found a host_decl but no matching address, try to - find a host_decl that has no address, and if there is one, - hang it off the lease so that we can use the supplied - options. */ - if (lease && host && !lease -> host) { - for (; host; host = host -> n_ipaddr) { - if (!host -> fixed_addr) { - lease -> host = host; - break; - } - } - } - - return lease; -} - -/* Search the provided host_decl structure list for an address that's on - the specified shared network. If one is found, mock up and return a - lease structure for it; otherwise return the null pointer. */ - -struct lease *mockup_lease (packet, share, hp) - struct packet *packet; - struct shared_network *share; - struct host_decl *hp; -{ - static struct lease mock; - - mock.subnet = find_host_for_network (&hp, &mock.ip_addr, share); - if (!mock.subnet) - return (struct lease *)0; - mock.next = mock.prev = (struct lease *)0; - mock.shared_network = mock.subnet -> shared_network; - mock.host = hp; - - if (hp -> group -> options [DHO_DHCP_CLIENT_IDENTIFIER]) { - mock.uid = hp -> group -> - options [DHO_DHCP_CLIENT_IDENTIFIER] -> value; - mock.uid_len = hp -> group -> - options [DHO_DHCP_CLIENT_IDENTIFIER] -> len; - } else { - mock.uid = (unsigned char *)0; - mock.uid_len = 0; - } - - mock.hardware_addr = hp -> interface; - mock.starts = mock.timestamp = mock.ends = MIN_TIME; - mock.flags = STATIC_LEASE; - return &mock; -} diff --git a/server/dhcpd.8 b/server/dhcpd.8 deleted file mode 100644 index c0f9aa9a..00000000 --- a/server/dhcpd.8 +++ /dev/null @@ -1,308 +0,0 @@ -.\" dhcpd.8 -.\" -.\" Copyright (c) 1995, 1996 The Internet Software Consortium. -.\" All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. Redistributions in binary form must reproduce the above copyright -.\" notice, this list of conditions and the following disclaimer in the -.\" documentation and/or other materials provided with the distribution. -.\" 3. Neither the name of The Internet Software Consortium nor the names -.\" of its contributors may be used to endorse or promote products derived -.\" from this software without specific prior written permission. -.\" -.\" THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND -.\" CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, -.\" INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF -.\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE -.\" DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR -.\" CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -.\" SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -.\" LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF -.\" USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND -.\" ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, -.\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT -.\" OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -.\" SUCH DAMAGE. -.\" -.\" This software has been written for the Internet Software Consortium -.\" by Ted Lemon <mellon@fugue.com> in cooperation with Vixie -.\" Enterprises. To learn more about the Internet Software Consortium, -.\" see ``http://www.isc.org/isc''. To learn more about Vixie -.\" Enterprises, see ``http://www.vix.com''. -.TH dhcpd 8 -.SH NAME -dhcpd - Dynamic Host Configuration Protocol Server -.SH SYNOPSIS -.B dhcpd -[ -.B -p -.I port -] -[ -.B -f -] -[ -.B -d -] -[ -.B -cf -.I config-file -] -[ -.B -lf -.I lease-file -] -[ -.I if0 -[ -.I ...ifN -] -] -.SH DESCRIPTION -The Internet Software Consortium DHCP Server, dhcpd, implements the -Dynamic Host Configuration Protocol (DHCP) and the Internet Bootstrap -Protocol (BOOTP). DHCP allows hosts on a TCP/IP network to request -and be assigned IP addresses, and also to discover information about -the network to which they are attached. BOOTP provides similar -functionality, with certain restrictions. -.SH OPERATION -.PP -The DHCP protocol allows a host which is unknown to the network -administrator to be automatically assigned a new IP address out of a -pool of IP addresses for its network. In order for this to work, the -network administrator allocates address pools in each subnet and -enters them into the dhcpd.conf(5) file. -.PP -On startup, dhcpd reads the -.IR dhcpd.conf -file and stores a list of available addresses on each subnet in -memory. When a client requests an address using the DHCP protocol, -dhcpd allocates an address for it. Each client is assigned a lease, -which expires after an amount of time chosen by the administrator (by -default, one day). Before leases expire, the clients to which leases -are assigned are expected to renew them in order to continue to use -the addresses. Once a lease has expired, the client to which that -lease was assigned is no longer permitted to use the leased IP -address. -.PP -In order to keep track of leases across system reboots and server -restarts, dhcpd keeps a list of leases it has assigned in the -dhcpd.leases(5) file. Before dhcpd grants a lease to a host, it -records the lease in this file and makes sure that the contents of the -file are flushed to disk. This ensures that even in the event of a -system crash, dhcpd will not forget about a lease that it has -assigned. On startup, after reading the dhcpd.conf file, dhcpd -reads the dhcpd.leases file to refresh its memory about what leases -have been assigned. -.PP -New leases are appended to the end of the dhcpd.leases -file. In order to prevent the file from becoming arbitrarily large, -from time to time dhcpd creates a new dhcpd.leases file from its -in-core lease database. Once this file has been written to disk, the -old file is renamed -.IR dhcpd.leases~ , -and the new file is renamed dhcpd.leases. If the system crashes in -the middle of this process, whichever dhcpd.leases file remains will -contain all the lease information, so there is no need for a special -crash recovery process. -.PP -BOOTP support is also provided by this server. Unlike DHCP, the BOOTP -protocol does not provide a protocol for recovering -dynamically-assigned addresses once they are no longer needed. It is -still possible to dynamically assign addresses to BOOTP clients, but -some administrative process for reclaiming addresses is required. By -default, leases are granted to BOOTP clients in perpetuity, although -the network administrator may set an earlier cutoff date or a shorter -lease length for BOOTP leases if that makes sense. -.PP -BOOTP clients may also be served in the old standard way, which is to -simply provide a declaration in the dhcpd.conf file for each -BOOTP client, permanently assigning an address to each client. -.PP -Whenever changes are made to the dhcpd.conf file, dhcpd must be -restarted. To restart dhcpd, send a SIGTERM (signal 15) to the -process ID contained in -.IR RUNDIR/dhcpd.pid , -and then re-invoke dhcpd. Because the DHCP server database is not as -lightweight as a BOOTP database, dhcpd does not automatically restart -itself when it sees a change to the dhcpd.conf file. -.SH COMMAND LINE -.PP -The names of the network interfaces on which dhcpd should listen for -broadcasts may be specified on the command line. This should be done -on systems where dhcpd is unable to identify non-broadcast interfaces, -but should not be required on other systems. If no interface names -are specified on the command line dhcpd will identify all network -interfaces which are up, elimininating non-broadcast interfaces if -possible, and listen for DHCP broadcasts on each interface. -.PP -If dhcpd should listen on a port other than the standard (port 67), -the -.B -p -flag may used. It should be followed by the udp port number on which -dhcpd should listen. This is mostly useful for debugging purposes. -.PP -To run dhcpd as a foreground process, rather than allowing it to run -as a daemon in the background, the -.B -f -flag should be specified. This is useful when running dhcpd under a -debugger, or when running it out of inittab on System V systems. -.PP -To have dhcpd log to the standard error descriptor, specify the -.B -d -flag. This can be useful for debugging, and also at sites where a -complete log of all dhcp activity must be kept but syslogd is not -reliable or otherwise cannot be used. Normally, dhcpd will log all -output using the syslog(3) function with the log facility set to -LOG_DAEMON. -.PP -Dhcpd can be made to use an alternate configuration file with the -.B -cf -flag, or an alternate lease file with the -.B -lf -flag. Because of the importance of using the same lease database at -all times when running dhcpd in production, these options should be -used \fBonly\fR for testing lease files or database files in a -non-production environment. -.SH CONFIGURATION -The syntax of the dhcpd.conf(8) file is discussed seperately. This -section should be used as an overview of the configuration process, -and the dhcpd.conf(8) documentation should be consulted for detailed -reference information. -.PP -.SH Subnets -dhcpd needs to know the subnet numbers and netmasks of all subnets for -which it will be providing service. In addition, in order to -dynamically allocate addresses, it must be assigned one or more ranges -of addresses on each subnet which it can in turn assign to client -hosts as they boot. Thus, a very simple configuration providing DHCP -support might look like this: -.nf -.sp 1 - subnet 239.252.197.0 netmask 255.255.255.0 { - range 239.252.197.10 239.252.197.250; - } -.fi -.PP -Multiple address ranges may be specified like this: -.nf -.sp 1 - subnet 239.252.197.0 netmask 255.255.255.0 { - range 239.252.197.10 239.252.197.107; - range 239.252.197.113 239.252.197.250; - } -.fi -.PP -If a subnet will only be provided with BOOTP service and no dynamic -address assignment, the range clause can be left out entirely, but the -subnet statement must appear. -.PP -.SH Lease Lengths -DHCP leases can be assigned almost any length from zero seconds to -infinity. What lease length makes sense for any given subnet, or for -any given installation, will vary depending on the kinds of hosts -being served. -.PP -For example, in an office environment where systems are added from -time to time and removed from time to time, but move relatively -infrequently, it might make sense to allow lease times of a month of -more. In a final test environment on a manufacturing floor, it may -make more sense to assign a maximum lease length of 30 minutes - -enough time to go through a simple test procedure on a network -appliance before packaging it up for delivery. -.PP -It is possible to specify two lease lengths: the default length that -will be assigned if a client doesn't ask for any particular lease -length, and a maximum lease length. These are specified as clauses -to the subnet command: -.nf -.sp 1 - subnet 239.252.197.0 netmask 255.255.255.0 { - range 239.252.197.10 239.252.197.107; - default-lease-time 600; - max-lease-time 7200; - | -.fi -.PP -This particular subnet declaration specifies a default lease time of -600 seconds (ten minutes), and a maximum lease time of 7200 seconds -(two hours). Other common values would be 86400 (one day), 604800 -(one week) and 2592000 (30 days). -.PP -Each subnet need not have the same lease\(emin the case of an office -environment and a manufacturing environment served by the same DHCP -server, it might make sense to have widely disparate values for -default and maximum lease times on each subnet. -.SH BOOTP Support -Each BOOTP client must be explicitly declared in the dhcpd.conf -file. A very basic client declaration will specify the client -network interface's hardware address and the IP address to assign to -that client. If the client needs to be able to load a boot file from -the server, that file's name must be specified. A simple bootp -client declaration might look like this: -.nf -.sp 1 - host haagen { - hardware ethernet 08:00:2b:4c:59:23; - fixed-address 239.252.197.9; - filename "/tftpboot/haagen.boot"; - } -.fi -.SH Options -DHCP (and also BOOTP with Vendor Extensions) provide a mechanism -whereby the server can provide the client with information about how -to configure its network interface (e.g., subnet mask), and also how -the client can access various network services (e.g., DNS, IP routers, -and so on). -.PP -These options can be specified on a per-subnet basis, and, for BOOTP -clients, also on a per-client basis. In the event that a BOOTP -client declaration specifies options that are also specified in its -subnet declaration, the options specified in the client declaration -take precedence. An reasonably complete DHCP configuration might -look something like this: -.nf -.sp 1 - subnet 239.252.197.0 netmask 255.255.255.0 { - range 239.252.197.10 239.252.197.250; - default-lease-time 600 max-lease-time 7200; - option subnet-mask 255.255.255.0; - option broadcast-address 239.252.197.255; - option routers 239.252.197.1; - option domain-name-servers 239.252.197.2, 239.252.197.3; - option domain-name "isc.org"; - } -.fi -.PP -A bootp host on that subnet that needs to be in a different domain and -use a different name server might be declared as follows: -.nf -.sp 1 - host haagen hardware ethernet 08:00:2b:4c:59:23 { - fixed-address 239.252.197.9; - filename "/tftpboot/haagen.boot"; - option domain-name-servers 192.5.5.1; - option domain-name "vix.com"; - } -.fi -.PP -A more complete description of the dhcpd.conf file syntax is provided -in dhcpd.conf(5). -.SH FILES -.B ETCDIR/dhcpd.conf, DBDIR/dhcpd.leases, RUNDIR/dhcpd.pid, -.B DBDIR/dhcpd.leases~. -.SH SEE ALSO -dhcpd.conf(5), dhcpd.leases(5) -.SH AUTHOR -.B dhcpd(8) -was written by Ted Lemon <mellon@vix.com> -under a contract with Vixie Labs. Funding -for this project was provided by the Internet Software Corporation. -Information about the Internet Software Consortium can be found at -.B http://www.isc.org/isc. diff --git a/server/dhcpd.c b/server/dhcpd.c deleted file mode 100644 index b46b74bb..00000000 --- a/server/dhcpd.c +++ /dev/null @@ -1,260 +0,0 @@ -/* dhcpd.c - - DHCP Server Daemon. */ - -/* - * Copyright (c) 1995, 1996 The Internet Software Consortium. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of The Internet Software Consortium nor the names - * of its contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND - * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This software has been written for the Internet Software Consortium - * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie - * Enterprises. To learn more about the Internet Software Consortium, - * see ``http://www.vix.com/isc''. To learn more about Vixie - * Enterprises, see ``http://www.vix.com''. - */ - -#ifndef lint -static char ocopyright[] = -"$Id: dhcpd.c,v 1.36 1996/09/12 09:28:13 mellon Exp $ Copyright 1995, 1996 The Internet Software Consortium."; -#endif - -static char copyright[] = -"Copyright 1995, 1996 The Internet Software Consortium."; -static char arr [] = "All rights reserved."; -static char message [] = "Internet Software Consortium DHCPD $Name: $"; - -#include "dhcpd.h" - -static void usage PROTO ((void)); - -TIME cur_time; -struct group root_group; - -struct iaddr server_identifier; -int server_identifier_matched; - -#ifdef USE_FALLBACK -struct interface_info fallback_interface; -#endif - -u_int16_t server_port; -int log_priority; -#ifdef DEBUG -int log_perror = -1; -#else -int log_perror = 1; -#endif - -char *path_dhcpd_conf = _PATH_DHCPD_CONF; -char *path_dhcpd_db = _PATH_DHCPD_DB; -char *path_dhcpd_pid = _PATH_DHCPD_PID; - -int main (argc, argv, envp) - int argc; - char **argv, **envp; -{ - int i, status; - struct servent *ent; - char *s; -#ifndef DEBUG - int pidfilewritten = 0; - int pid; - char pbuf [20]; - int daemon = 1; -#endif - - /* Initially, log errors to stderr as well as to syslogd. */ -#ifdef SYSLOG_4_2 - openlog ("dhcpd", LOG_NDELAY); - log_priority = DHCPD_LOG_FACILITY; -#else - openlog ("dhcpd", LOG_NDELAY, DHCPD_LOG_FACILITY); -#endif - -#ifndef DEBUG -#ifndef SYSLOG_4_2 - setlogmask (LOG_UPTO (LOG_INFO)); -#endif -#endif - note (message); - note (copyright); - note (arr); - - for (i = 1; i < argc; i++) { - if (!strcmp (argv [i], "-p")) { - if (++i == argc) - usage (); - for (s = argv [i]; *s; s++) - if (!isdigit (*s)) - error ("%s: not a valid UDP port", - argv [i]); - status = atoi (argv [i]); - if (status < 1 || status > 65535) - error ("%s: not a valid UDP port", - argv [i]); - server_port = htons (status); - debug ("binding to user-specified port %d", - ntohs (server_port)); - } else if (!strcmp (argv [i], "-f")) { -#ifndef DEBUG - daemon = 0; -#endif - } else if (!strcmp (argv [i], "-d")) { -#ifndef DEBUG - daemon = 0; -#endif - log_perror = -1; - } else if (!strcmp (argv [i], "-cf")) { - if (++i == argc) - usage (); - path_dhcpd_conf = argv [i]; - } else if (!strcmp (argv [i], "-lf")) { - if (++i == argc) - usage (); - path_dhcpd_db = argv [i]; - } else if (argv [i][0] == '-') { - usage (); - } else { - struct interface_info *tmp = - ((struct interface_info *) - dmalloc (sizeof *tmp, "get_interface_list")); - if (!tmp) - error ("Insufficient memory to %s %s", - "record interface", argv [i]); - memset (tmp, 0, sizeof *tmp); - strcpy (tmp -> name, argv [i]); - tmp -> next = interfaces; - tmp -> flags = INTERFACE_REQUESTED; - interfaces = tmp; - } - } - - /* If we were requested to log to stdout on the command line, - keep doing so; otherwise, stop. */ - if (log_perror == -1) - log_perror = 1; - else - log_perror = 0; - -#ifndef DEBUG - if (daemon) { - /* Become a daemon... */ - if ((pid = fork ()) < 0) - error ("Can't fork daemon: %m"); - else if (pid) - exit (0); - /* Become session leader and get pid... */ - close (0); - close (1); - close (2); - pid = setsid (); - } - - /* Read previous pid file. */ - if ((i = open (path_dhcpd_pid, O_RDONLY)) >= 0) { - status = read (i, pbuf, (sizeof pbuf) - 1); - close (i); - pbuf [status] = 0; - pid = atoi (pbuf); - - /* If the previous server process is not still running, - write a new pid file immediately. */ - if (pid && kill (pid, 0) < 0) { - unlink (path_dhcpd_pid); - if ((i = open (path_dhcpd_pid, - O_WRONLY | O_CREAT, 0640)) >= 0) { - sprintf (pbuf, "%d\n", (int)getpid ()); - write (i, pbuf, strlen (pbuf)); - close (i); - pidfilewritten = 1; - } - } - } -#endif /* !DEBUG */ - - /* Default to the DHCP/BOOTP port. */ - if (!server_port) - { - ent = getservbyname ("dhcp", "udp"); - if (!ent) - server_port = htons (67); - else - server_port = ent -> s_port; - endservent (); - } - - /* Get the current time... */ - GET_TIME (&cur_time); - - /* Read the dhcpd.conf file... */ - if (!readconf ()) - error ("Configuration file errors encountered -- exiting"); - - /* Start up the database... */ - db_startup (); - - /* Discover all the network interfaces and initialize them. */ - discover_interfaces (1); - -#ifndef DEBUG - /* If we didn't write the pid file earlier because we found a - process running the logged pid, but we made it to here, - meaning nothing is listening on the bootp port, then write - the pid file out - what's in it now is bogus anyway. */ - if (!pidfilewritten) { - unlink (path_dhcpd_pid); - if ((i = open (path_dhcpd_pid, - O_WRONLY | O_CREAT, 0640)) >= 0) { - sprintf (pbuf, "%d\n", (int)getpid ()); - write (i, pbuf, strlen (pbuf)); - close (i); - pidfilewritten = 1; - } - } -#endif /* !DEBUG */ - - /* Receive packets and dispatch them... */ - dispatch (); - - /* Not reached */ - return 0; -} - -/* Print usage message. */ - -static void usage () -{ - error ("Usage: dhcpd [-p <UDP port #>] [-d] [-f] [-cf config-file]%s", - "\n [-lf lease-file] [if0 [...ifN]]"); -} - -void cleanup () -{ -} diff --git a/server/dhcpd.cat8 b/server/dhcpd.cat8 deleted file mode 100644 index d046e509..00000000 --- a/server/dhcpd.cat8 +++ /dev/null @@ -1,330 +0,0 @@ - - - -dhcpd(8) dhcpd(8) - - -NNAAMMEE - dhcpd - Dynamic Host Configuration Protocol Server - -SSYYNNOOPPSSIISS - ddhhccppdd [ --pp _p_o_r_t ] [ --ff ] [ --dd ] [ --ccff _c_o_n_f_i_g_-_f_i_l_e ] [ --llff - _l_e_a_s_e_-_f_i_l_e ] [ _i_f_0 [ _._._._i_f_N ] ] - -DDEESSCCRRIIPPTTIIOONN - The Internet Software Consortium DHCP Server, dhcpd, - implements the Dynamic Host Configuration Protocol (DHCP) - and the Internet Bootstrap Protocol (BOOTP). DHCP allows - hosts on a TCP/IP network to request and be assigned IP - addresses, and also to discover information about the net- - work to which they are attached. BOOTP provides similar - functionality, with certain restrictions. - -OOPPEERRAATTIIOONN - The DHCP protocol allows a host which is unknown to the - network administrator to be automatically assigned a new - IP address out of a pool of IP addresses for its network. - In order for this to work, the network administrator allo- - cates address pools in each subnet and enters them into - the dhcpd.conf(5) file. - - On startup, dhcpd reads the _d_h_c_p_d_._c_o_n_f file and stores a - list of available addresses on each subnet in memory. - When a client requests an address using the DHCP protocol, - dhcpd allocates an address for it. Each client is - assigned a lease, which expires after an amount of time - chosen by the administrator (by default, one day). Before - leases expire, the clients to which leases are assigned - are expected to renew them in order to continue to use the - addresses. Once a lease has expired, the client to which - that lease was assigned is no longer permitted to use the - leased IP address. - - In order to keep track of leases across system reboots and - server restarts, dhcpd keeps a list of leases it has - assigned in the dhcpd.leases(5) file. Before dhcpd - grants a lease to a host, it records the lease in this - file and makes sure that the contents of the file are - flushed to disk. This ensures that even in the event of - a system crash, dhcpd will not forget about a lease that - it has assigned. On startup, after reading the - dhcpd.conf file, dhcpd reads the dhcpd.leases file to - refresh its memory about what leases have been assigned. - - New leases are appended to the end of the dhcpd.leases - file. In order to prevent the file from becoming arbi- - trarily large, from time to time dhcpd creates a new - dhcpd.leases file from its in-core lease database. Once - this file has been written to disk, the old file is - renamed _d_h_c_p_d_._l_e_a_s_e_s_~, and the new file is renamed - dhcpd.leases. If the system crashes in the middle of - - - - 1 - - - - - -dhcpd(8) dhcpd(8) - - - this process, whichever dhcpd.leases file remains will - contain all the lease information, so there is no need for - a special crash recovery process. - - BOOTP support is also provided by this server. Unlike - DHCP, the BOOTP protocol does not provide a protocol for - recovering dynamically-assigned addresses once they are no - longer needed. It is still possible to dynamically - assign addresses to BOOTP clients, but some administrative - process for reclaiming addresses is required. By - default, leases are granted to BOOTP clients in perpetu- - ity, although the network administrator may set an earlier - cutoff date or a shorter lease length for BOOTP leases if - that makes sense. - - BOOTP clients may also be served in the old standard way, - which is to simply provide a declaration in the dhcpd.conf - file for each BOOTP client, permanently assigning an - address to each client. - - Whenever changes are made to the dhcpd.conf file, dhcpd - must be restarted. To restart dhcpd, send a SIGTERM - (signal 15) to the process ID contained in - _/_v_a_r_/_r_u_n_/_d_h_c_p_d_._p_i_d, and then re-invoke dhcpd. Because the - DHCP server database is not as lightweight as a BOOTP - database, dhcpd does not automatically restart itself when - it sees a change to the dhcpd.conf file. - -CCOOMMMMAANNDD LLIINNEE - The names of the network interfaces on which dhcpd should - listen for broadcasts may be specified on the command - line. This should be done on systems where dhcpd is - unable to identify non-broadcast interfaces, but should - not be required on other systems. If no interface names - are specified on the command line dhcpd will identify all - network interfaces which are up, elimininating non- - broadcast interfaces if possible, and listen for DHCP - broadcasts on each interface. - - If dhcpd should listen on a port other than the standard - (port 67), the --pp flag may used. It should be followed by - the udp port number on which dhcpd should listen. This is - mostly useful for debugging purposes. - - To run dhcpd as a foreground process, rather than allowing - it to run as a daemon in the background, the --ff flag - should be specified. This is useful when running dhcpd - under a debugger, or when running it out of inittab on - System V systems. - - To have dhcpd log to the standard error descriptor, spec- - ify the --dd flag. This can be useful for debugging, and - also at sites where a complete log of all dhcp activity - must be kept but syslogd is not reliable or otherwise - - - - 2 - - - - - -dhcpd(8) dhcpd(8) - - - cannot be used. Normally, dhcpd will log all output - using the syslog(3) function with the log facility set to - LOG_DAEMON. - - Dhcpd can be made to use an alternate configuration file - with the --ccff flag, or an alternate lease file with the --llff - flag. Because of the importance of using the same lease - database at all times when running dhcpd in production, - these options should be used oonnllyy for testing lease files - or database files in a non-production environment. - -CCOONNFFIIGGUURRAATTIIOONN - The syntax of the dhcpd.conf(8) file is discussed seper- - ately. This section should be used as an overview of the - configuration process, and the dhcpd.conf(8) documentation - should be consulted for detailed reference information. - - -SSuubbnneettss - dhcpd needs to know the subnet numbers and netmasks of all - subnets for which it will be providing service. In addi- - tion, in order to dynamically allocate addresses, it must - be assigned one or more ranges of addresses on each subnet - which it can in turn assign to client hosts as they boot. - Thus, a very simple configuration providing DHCP support - might look like this: - - subnet 239.252.197.0 netmask 255.255.255.0 { - range 239.252.197.10 239.252.197.250; - } - - Multiple address ranges may be specified like this: - - subnet 239.252.197.0 netmask 255.255.255.0 { - range 239.252.197.10 239.252.197.107; - range 239.252.197.113 239.252.197.250; - } - - If a subnet will only be provided with BOOTP service and - no dynamic address assignment, the range clause can be - left out entirely, but the subnet statement must appear. - - -LLeeaassee LLeennggtthhss - DHCP leases can be assigned almost any length from zero - seconds to infinity. What lease length makes sense for - any given subnet, or for any given installation, will vary - depending on the kinds of hosts being served. - - For example, in an office environment where systems are - added from time to time and removed from time to time, but - move relatively infrequently, it might make sense to allow - lease times of a month of more. In a final test environ- - ment on a manufacturing floor, it may make more sense to - - - - 3 - - - - - -dhcpd(8) dhcpd(8) - - - assign a maximum lease length of 30 minutes - enough time - to go through a simple test procedure on a network appli- - ance before packaging it up for delivery. - - It is possible to specify two lease lengths: the default - length that will be assigned if a client doesn't ask for - any particular lease length, and a maximum lease length. - These are specified as clauses to the subnet command: - - subnet 239.252.197.0 netmask 255.255.255.0 { - range 239.252.197.10 239.252.197.107; - default-lease-time 600; - max-lease-time 7200; - | - - This particular subnet declaration specifies a default - lease time of 600 seconds (ten minutes), and a maximum - lease time of 7200 seconds (two hours). Other common - values would be 86400 (one day), 604800 (one week) and - 2592000 (30 days). - - Each subnet need not have the same lease--in the case of - an office environment and a manufacturing environment - served by the same DHCP server, it might make sense to - have widely disparate values for default and maximum lease - times on each subnet. - -BBOOOOTTPP SSuuppppoorrtt - Each BOOTP client must be explicitly declared in the - dhcpd.conf file. A very basic client declaration will - specify the client network interface's hardware address - and the IP address to assign to that client. If the - client needs to be able to load a boot file from the - server, that file's name must be specified. A simple - bootp client declaration might look like this: - - host haagen { - hardware ethernet 08:00:2b:4c:59:23; - fixed-address 239.252.197.9; - filename "/tftpboot/haagen.boot"; - } - -OOppttiioonnss - DHCP (and also BOOTP with Vendor Extensions) provide a - mechanism whereby the server can provide the client with - information about how to configure its network interface - (e.g., subnet mask), and also how the client can access - various network services (e.g., DNS, IP routers, and so - on). - - These options can be specified on a per-subnet basis, and, - for BOOTP clients, also on a per-client basis. In the - event that a BOOTP client declaration specifies options - that are also specified in its subnet declaration, the - - - - 4 - - - - - -dhcpd(8) dhcpd(8) - - - options specified in the client declaration take prece- - dence. An reasonably complete DHCP configuration might - look something like this: - - subnet 239.252.197.0 netmask 255.255.255.0 { - range 239.252.197.10 239.252.197.250; - default-lease-time 600 max-lease-time 7200; - option subnet-mask 255.255.255.0; - option broadcast-address 239.252.197.255; - option routers 239.252.197.1; - option domain-name-servers 239.252.197.2, 239.252.197.3; - option domain-name "isc.org"; - } - - A bootp host on that subnet that needs to be in a differ- - ent domain and use a different name server might be - declared as follows: - - host haagen hardware ethernet 08:00:2b:4c:59:23 { - fixed-address 239.252.197.9; - filename "/tftpboot/haagen.boot"; - option domain-name-servers 192.5.5.1; - option domain-name "vix.com"; - } - - A more complete description of the dhcpd.conf file syntax - is provided in dhcpd.conf(5). - -FFIILLEESS - //eettcc//ddhhccppdd..ccoonnff,, //vvaarr//ddbb//ddhhccppdd..lleeaasseess,, //vvaarr//rruunn//ddhhccppdd..ppiidd,, - //vvaarr//ddbb//ddhhccppdd..lleeaasseess~~.. - -SSEEEE AALLSSOO - dhcpd.conf(5), dhcpd.leases(5) - -AAUUTTHHOORR - ddhhccppdd((88)) was written by Ted Lemon <mellon@vix.com> under a - contract with Vixie Labs. Funding for this project was - provided by the Internet Software Corporation. Informa- - tion about the Internet Software Consortium can be found - at hhttttpp::////wwwwww..iisscc..oorrgg//iisscc.. - - - - - - - - - - - - - - - - - 5 - - diff --git a/server/dhcpd.conf b/server/dhcpd.conf deleted file mode 100644 index a50dee07..00000000 --- a/server/dhcpd.conf +++ /dev/null @@ -1,128 +0,0 @@ -# dhcpd.conf -# -# Configuration file for ISC dhcpd -# - -# Hosts with more than one interface MUST specify a ``server-identifier'', -# which should be the IP address of the server's primary network interface, -# or if there is no interface that can be described that way, at least an -# interface whose address isn't likely to change. - -server-identifier toccata.fugue.com; - -# option definitions common to all supported networks... -option domain-name "fugue.com"; -option domain-name-servers toccata.fugue.com; - -# Shared network declaration is used to group subnets which share the same -# physical network together. The name is specified so that the shared -# network can be referred to in log messages - it serves no other function. - -shared-network FUGUE { - -# option definitions common to this shared network. - option subnet-mask 255.255.255.224; - default-lease-time 600; - max-lease-time 7200; - -# One of the two IP subnets that share this physical network -# -# Address ranges can be specified for each subnet attached to -# a shared network. Since these subnets share the same physical -# network, addresses are pooled together, and assignments are made -# without regard to the actual subnet. If the optional dynamic-bootp -# keyword is given in the address range declaration, then addresses -# in that range can be assigned either with the DHCP protocol or the -# BOOTP protocol; otherwise, only DHCP clients will have addresses -# allocated from the address range. -# -# Note that each IP subnet can have its own options specific to that subnet. -# options that aren't specified in the subnet are taken from the shared -# network (if any) and then from the global option list. - - subnet 204.254.239.0 netmask 255.255.255.224 { - range 204.254.239.10 204.254.239.20; - option broadcast-address 204.254.239.31; - option routers prelude.fugue.com; - } - -# The other subnet that shares this physical network - subnet 204.254.239.32 netmask 255.255.255.224 { - range dynamic-bootp 204.254.239.10 204.254.239.20; - option broadcast-address 204.254.239.31; - option routers snarg.fugue.com; - } -} - -# IP subnets that are alone on their physical wire should be declared by -# themselves. ISC dhcpd may still refer to them as shared networks in -# log messages, but this is simply an artifact of the underlying data -# structures. -# -# Note that options can be specified in the subnet declaration which -# supersede the global options specified earlier. - -subnet 192.5.5.0 netmask 255.255.255.224 { - range 192.5.5.26 192.5.5.30; - option name-servers bb.home.vix.com, gw.home.vix.com; - option domain-name "vix.com"; - option routers 192.5.5.1; - option subnet-mask 255.255.255.224; - option broadcast-address 192.5.5.31; - default-lease-time 600; - max-lease-time 7200; -} - -# Hosts which require special configuration options can be listed in -# host statements. If no address is specified, the address will be -# allocated dynamically (if possible), but the host-specific information -# will still come from the host declaration. - -host passacaglia { - hardware ethernet 0:0:c0:5d:bd:95; - filename "vmunix.passacaglia"; - server-name "toccata.fugue.com"; -} - -# Fixed IP addresses can also be specified for hosts. These addresses -# should not also be listed as being available for dynamic assignment. -# Hosts for which fixed IP addresses have been specified can boot using -# BOOTP or DHCP. Hosts for which no fixed address is specified can only -# be booted with DHCP, unless there is an address range on the subnet -# to which a BOOTP client is connected which has the dynamic-bootp flag -# set. -host fantasia { - hardware ethernet 08:00:07:26:c0:a5; - fixed-address fantasia.fugue.com; -} - -# If a DHCP or BOOTP client is mobile and might be connected to a variety -# of networks, more than one fixed address for that host can be specified. -# Hosts can have fixed addresses on some networks, but receive dynamically -# allocated address on other subnets; in order to support this, a host -# declaration for that client must be given which does not have a fixed -# address. If a client should get different parameters depending on -# what subnet it boots on, host declarations for each such network should -# be given. Finally, if a domain name is given for a host's fixed address -# and that domain name evaluates to more than one address, the address -# corresponding to the network to which the client is attached, if any, -# will be assigned. -host confusia { - hardware ethernet 02:03:04:05:06:07; - fixed-address confusia-1.fugue.com, confusia-2.fugue.com; - filename "vmunix.confusia"; - server-name "toccata.fugue.com"; -} - -host confusia { - hardware ethernet 02:03:04:05:06:07; - fixed-address confusia-3.fugue.com; - filename "vmunix.confusia"; - server-name "snarg.fugue.com"; -} - -host confusia { - hardware ethernet 02:03:04:05:06:07; - filename "vmunix.confusia"; - server-name "bb.home.vix.com"; -} diff --git a/server/dhcpd.conf.5 b/server/dhcpd.conf.5 deleted file mode 100644 index a0dbc51a..00000000 --- a/server/dhcpd.conf.5 +++ /dev/null @@ -1,1050 +0,0 @@ -.\" dhcpd.conf.5 -.\" -.\" Copyright (c) 1995, 1996 The Internet Software Consortium. -.\" All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. Redistributions in binary form must reproduce the above copyright -.\" notice, this list of conditions and the following disclaimer in the -.\" documentation and/or other materials provided with the distribution. -.\" 3. Neither the name of The Internet Software Consortium nor the names -.\" of its contributors may be used to endorse or promote products derived -.\" from this software without specific prior written permission. -.\" -.\" THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND -.\" CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, -.\" INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF -.\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE -.\" DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR -.\" CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -.\" SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -.\" LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF -.\" USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND -.\" ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, -.\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT -.\" OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -.\" SUCH DAMAGE. -.\" -.\" This software has been written for the Internet Software Consortium -.\" by Ted Lemon <mellon@fugue.com> in cooperation with Vixie -.\" Enterprises. To learn more about the Internet Software Consortium, -.\" see ``http://www.isc.org/isc''. To learn more about Vixie -.\" Enterprises, see ``http://www.vix.com''. -.TH dhcpd.conf 5 -.SH NAME -dhcpd.conf - dhcpd configuration file -.SH DESCRIPTION -The dhcpd.conf file contains configuration information for -.IR dhcpd, -the Internet Software Consortium DHCP Server. -.PP -The dhcpd.conf file is a free-form ASCII text file. It is parsed by -the recursive-descent parser built into dhcpd. The file may contain -extra tabs and newlines for formatting purposes. Keywords in the file -are case-insensitive. Comments may be placed anywhere within the -file (except within quotes). Comments begin with the # character and -end at the end of the line. -.PP -The file essentially consists of a list of statements. Statements -fall into two broad categories - parameters and declarations. -.PP -Parameter statements either say how to do something (e.g., how long a -lease to offer), whether to do something (e.g., should dhcpd provide -addresses to unknown clients), or what parameters to provide to the -client (e.g., use gateway 220.177.244.7). -.PP -Declarations are used to describe the topology of the -network, to describe clients on the network, to provide addresses that -can be assigned to clients, or to apply a group of parameters to a -group of declarations. In any group of parameters and declarations, -all parameters must be specified before any declarations which depend -on those parameters may be specified. -.PP -Declarations about network topology include the -\fIserver-identifier\fR, the \fIshared-network\fR and the \fIsubnet\fR -declarations. If clients on a subnet are to be assigned addresses -dynamically, a \fIrange\fR declaration must appear within the -\fIsubnet\fR declaration. For clients with statically assigned -addresses, or for installations where only known clients will be -served, each such client must have a \fIhost\fR declaration. If -parameters are to be applied to a group of declarations which are not -related strictly on a per-subnet basis, the \fIgroup\fR declaration -can be used. -.PP -Each dhcpd.conf file must have one (and only one) -.I server-identifier -declaration, which tells dhcpd the identifier to use when issuing -leases. For every subnet which will be served, and for every subnet -to which the dhcp server is connected, there must be one \fIsubnet\fR -declaration, which tells dhcpd how to recognize that an address is on -that subnet. A \fIsubnet\fR declaration is required for each subnet -even if no addresses will be dynamically allocated on that subnet. -.PP -Some installations have physical networks on which more than one IP -subnet operates. For example, if there is a site-wide requirement -that 8-bit subnet masks be used, but a department with a single -physical ethernet network expands to the point where it has more than -254 nodes, it may be necessary to run two 8-bit subnets on the same -ethernet until such time as a new physical network can be added. In -this case, the \fIsubnet\fR declarations for these two networks may be -enclosed in a \fIshared-network\fR declaration. -.PP -Some sites may have departments which have clients on more than one -subnet, but it may be desirable to offer those clients a uniform set -of parameters which are different than what would be offered to -clients from other departments on the same subnet. For clients which -will be declared explicitly with \fIhost\fR declarations, these -declarations can be enclosed in a \fIgroup\fR declaration along with -the parameters which are common to that department. For clients -whose addresses will be dynamically assigned, there is currently no -way to group parameter assignments other than by network topology. -.PP -When a client is to be booted, its boot parameters are determined by -first consulting that client's \fIhost\fR declaration (if any), then -consulting the \fIgroup\fR declaration (if any) which enclosed that -\fIhost\fR declaration, then consulting the \fIsubnet\fR declaration -for the subnet on which the client is booting, then consulting the -\fIshared-network\fR declaration (if any) containing that subnet, and -finally consulting the top-level parameters which may be specified -outside of any declaration. -.PP -When dhcpd tries to find a \fIhost\fR declaration for a client, it -first looks for a \fIhost\fR declaration which has a -\fIfixed-address\fR parameter which matches the subnet or shared -network on which the client is booting. If it doesn't find any such -entry, it then tries to find an entry which has no \fIfixed-address\fR -parameter. If no such entry is found, then dhcpd acts as if there is -no entry in the dhcpd.conf file for that client, even if there is an -entry for that client on a different subnet or shared network. -.SH EXAMPLES -.PP -A typical dhcpd.conf file will look something like this: -.nf - -server-identifier dhcps.isc.org; -.I global parameters... - -shared-network ISC-BIGGIE { - \fIshared-network-specific parameters...\fR - subnet 204.254.239.0 netmask 255.255.255.224 { - \fIsubnet-specific parameters...\fR - range 204.254.239.10 204.254.239.30; - } - subnet 204.254.239.32 netmask 255.255.255.224 { - \fIsubnet-specific parameters...\fR - range 204.254.239.42 204.254.239.62; - } -} - -subnet 204.254.239.64 netmask 255.255.255.224 { - \fIsubnet-specific parameters...\fR - range 204.254.239.74 204.254.239.94; -} - -group { - \fIgroup-specific parameters...\fR - host zappo.test.isc.org { - \fIhost-specific parameters...\fR - } - host beppo.test.isc.org { - \fIhost-specific parameters...\fR - } - host harpo.test.isc.org { - \fIhost-specific parameters...\fR - } -} - -.ce 1 -Figure 1 - -.fi -.PP -Notice that after the server-identifier declaration, there's a place -for global parameters. These might be things like the organization's -domain name, the addresses of the name servers (if they are common to -the entire organization), and so on. So, for example: -.nf - - option domain-name "isc.org"; - option name-servers ns1.isc.org, ns2.isc.org; - -.ce 1 -Figure 2 -.fi -.PP -As you can see in Figure 2, it's legal to specify host addresses in -parameters as domain names rather than as numeric IP addresses. If a -given hostname resolves to more than one IP address (for example, if -that host has two ethernet interfaces), both addresses are supplied to -the client. -.PP -In Figure 1, you can see that both the shared-network statement and -the subnet statements can have parameters. Let us say that the -shared network \fIISC-BIGGIE\fR supports an entire department - -perhaps the accounting department. If accounting has its own domain, -then a shared-network-specific parameter might be: -.nf - - option domain-name "accounting.isc.org"; -.fi -.PP -All subnet declarations appearing in the shared-network declaration -would then have the domain-name option set to "accounting.isc.org" -instead of just "isc.org". -.PP -The most obvious reason for having subnet-specific parameters as -shown in Figure 1 is that each subnet, of necessity, has its own -router. So for the first subnet, for example, there should be -something like: -.nf - - option routers 204.254.239.1; -.fi -.PP -Note that the address here is specified numerically. This is not -required - if you have a different domain name for each interface on -your router, it's perfectly legitimate to use the domain name for that -interface instead of the numeric address. However, in many cases -there may be only one domain name for all of a router's IP addresses, and -it would not be appropriate to use that name here. -.PP -In Figure 1 there is also a \fIgroup\fR statement, which provides -common parameters for a set of three hosts - zappo, beppo and harpo. -As you can see, these hosts are all in the test.isc.org domain, so it -might make sense for a group-specific parameter to override the domain -name supplied to these hosts: -.nf - - option domain-name "test.isc.org"; -.fi -.PP -Also, given the domain they're in, these are probably test machines. -If we wanted to test the DHCP leasing mechanism, we might set the -lease timeout somewhat shorter than the default: - -.nf - max-lease-time 120; - default-lease-time 120; -.fi -.PP -You may have noticed that while some parameters start with the -\fIoption\fR keyword, some do not. Parameters starting with the -\fIoption\fR keyword correspond to actual DHCP options, while -parameters that do not start with the option keyword either control -the behaviour of the DHCP server (e.g., how long a lease dhcpd will -give out), or specify client parameters that are not optional in the -DHCP protocol (for example, server-name and filename). -.PP -In Figure 1, each host had \fIhost-specific parameters\fR. These -could include such things as the \fIhostname\fR option, the name of a -file to upload (the \fIfilename parameter) and the address of the -server from which to upload the file (the \fInext-server\fR -parameter). In general, any parameter can appear anywhere that -parameters are allowed, and will be applied according to the scope in -which the parameter appears. -.PP -Imagine that you have a site with a lot of NCD X-Terminals. These -terminals come in a variety of models, and you want to specify the -boot files for each models. One way to do this would be to have host -declarations for each server and group them by model: -.nf - -group { - filename "Xncd19r"; - next-server ncd-booter; - - host ncd1 { hardware ethernet 0:c0:c3:49:2b:57; } - host ncd4 { hardware ethernet 0:c0:c3:80:fc:32; } - host ncd8 { hardware ethernet 0:c0:c3:22:46:81; } -} - -group { - filename "Xncd19c"; - next-server ncd-booter; - - host ncd2 { hardware ethernet 0:c0:c3:88:2d:81; } - host ncd3 { hardware ethernet 0:c0:c3:00:14:11; } -} - -group { - filename "XncdHMX"; - next-server ncd-booter; - - host ncd1 { hardware ethernet 0:c0:c3:11:90:23; } - host ncd4 { hardware ethernet 0:c0:c3:91:a7:8; } - host ncd8 { hardware ethernet 0:c0:c3:cc:a:8f; } -} -.fi -.SH REFERENCE: DECLARATIONS -.PP -.B The -.I server-identifier -.B statement -.PP - \fBserver-identifier \fIhostname\fR\fB;\fR -.PP -The server-identifier declaration must be used exactly once in each -dhcpd.conf file to tell dhcpd what IP address to use as its server -identifier, as required by the DHCP protocol. On a machine with a -single interface, the server identifier should be the primary address -of that interface. On machines with multiple interfaces, the address -of one such interface must be chosen. Any address may be chosen, as -long as it is the address of one of the interfaces of that machine. -.PP -.B The -.I shared-network -.B statement -.PP -.nf - \fBshared-network\fR \fIname\fR \fB{\fR - [ \fIparameters\fR ] - [ \fIdeclarations\fR ] - \fB}\fR -.fi -.PP -The \fIshared-network\fR statement is used to inform the DHCP server -that some IP subnets actually share the same physical network. Any -subnets in a shared network should be declared within a -\fIshared-network\fR statement. Parameters specified in the -\fIshared-network\fR statement will be used when booting clients on -those subnets unless parameters provided at the subnet or host level -override them. If any subnet in a shared network has addresses -available for dynamic allocation, those addresses are collected into a -common pool for that shared network and assigned to clients as needed. -There is no way to distinguish on which subnet of a shared network a -client should boot. -.PP -.I Name -should be the name of the shared network. This name is used when -printing debugging messages, so it should be descriptive for the -shared network. The name may have the syntax of a valid domain name -(although it will never be used as such), or it may be any arbitrary -name, enclosed in quotes. -.PP -.B The -.I subnet -.B statement -.PP -.nf - \fBsubnet\fR \fIsubnet-number\fR \fBnetmask\fR \fInetmask\fR \fB{\fR - [ \fIparameters\fR ] - [ \fIdeclarations\fR ] - \fB}\fR -.fi -.PP -The \fIsubnet\fR statement is used to provide dhcpd with enough -information to tell whether or not an IP address is on that subnet. -It may also be used to provide subnet-specific parameters and to -specify what addresses may be dynamically allocated to clients booting -on that subnet. Such addresses are specified using the \fIrange\fR -declaration. -.PP -The -.I subnet-number -should be an IP address or domain name which resolves to the subnet -number of the subnet being described. The -.I netmask -should be an IP address or domain name which resolves to the subnet mask -of the subnet being described. The subnet number, together with the -netmask, are sufficient to determine whether any given IP address is -on the specified subnet. -.PP -Although a netmask must be given with every subnet declaration, it is -recommended that if there is any variance in subnet masks at a site, a -subnet-mask option statement be used in each subnet declaration to set -the desired subnet mask, since any subnet-mask option statement will -override the subnet mask declared in the subnet statement. -.PP -.B The -.I range -.B statement -.PP -.nf - \fBrange\fR [ \fBdynamic-bootp\fR ] \fIlow-address\fR [ \fIhigh-address\fR]\fB;\fR -.fi -.PP -For any subnet on which addresses will be assigned dynamically, there -must be at least one \fIrange\fR statement. The range statement -gives the lowest and highest IP addresses in a range. All IP -addresses in the range should be in the subnet in which the -\fIrange\fR statement is declared. The \fIdynamic-bootp\fR flag may -be specified if addresses in the specified range may be dynamically -assigned to BOOTP clients as well as DHCP clients. When specifying a -single address, \fIhigh-address\fR can be omitted. -.PP -.B The -.I host -.B statement -.PP -.nf - \fBhost\fR \fIhostname\fR { - [ \fIparameters\fR ] - [ \fIdeclarations\fR ] - \fB}\fR -.fi -.PP -There must be at least one -.B host -statement for every BOOTP client that is to be served. -.B host -statements may also be specified for DHCP clients, although this is -not required unless booting is only enabled for known hosts. -.PP -If it is desirable to be able to boot a DHCP or BOOTP -client on more than one subnet with fixed addresses, more than one -address may be specified in the -.I fixed-address -parameter, or more than one -.B host -statement may be specified. -.PP -If client-specific boot parameters must change based on the network -to which the client is attached, then multiple -.B host -statements should -be used. -.PP -If a client is to be booted using a fixed address if it's -possible, but should be allocated a dynamic address otherwise, then a -.B host -statement must be specified without a -.B fixed-address -clause. -.I hostname -should be a name identifying the host. If a \fIhostname\fR option is -not specified for the host, \fIhostname\fR is used. -.PP -\fIHost\fR declarations are matched to actual DHCP or BOOTP clients -by matching the \fRdhcp-client-identifier\fR option specified in the -\fIhost\fR declaration to the one supplied by the client, or, if the -\fIhost\fR declaration or the client does not provide a -\fRdhcp-client-identifier\fR option, by matching the \fIhardware\fR -parameter in the \fIhost\fR declaration to the network hardware -address supplied by the client. BOOTP clients do not normally -provide a \fIdhcp-client-identifier\fR, so the hardware address must -be used for all clients that may boot using the BOOTP protocol. -.PP -.B The -.I group -.B statement -.PP -.nf - \fBgroup\fR { - [ \fIparameters\fR ] - [ \fIdeclarations\fR ] - \fB}\fR -.fi -.PP -The group statement is used simply to apply one or more parameters to -a group of declarations. It can be used to group hosts, shared -networks, subnets, or even other groups. -.SH REFERENCE: PARAMETERS -.PP -.B The -.I default-lease-time -.B statement -.PP - \fBdefault-lease-time\fR \fItime\fR\fB;\fR -.PP -.I Time -should be the length in seconds that will be assigned to a lease if -the client requesting the lease does not ask for a specific expiration -time. -.PP -.B The -.I max-lease-time -.B statement -.PP - \fBmax-lease-time\fR \fItime\fR\fB;\fR -.PP -.I Time -should be the maximum length in seconds that will be assigned to a -lease if the client requesting the lease asks for a specific -expiration time. -.PP -.B The -.I hardware -.B statement -.PP - \fBhardware\fR \fIhardware-type\fR \fIhardware-address\fR\fB;\fR -.PP -In order for a BOOTP client to be recognized, its network hardware -address must be declared using a \fIhardware\fR clause in the -.I host -statement. -.I hardware-type -must be the name of a physical hardware interface type. Currently, -only the -.B ethernet -type is recognized, although support for -.B token-ring -and -.B fddi -hardware types would also be desirable. -The -.I hardware-address -should be a set of hexadecimal octets (numbers from 0 through ff) -seperated by colons. The \fIhardwarefR statement may also be used -for DHCP clients. -.PP -.B The -.I filename -.B statement -.PP - \fBfilename\fR \fB"\fR\fIfilename\fR\fB";\fR -.PP -The \fIfilename\fR statement can be used to specify the name of the -initial boot file which is to be loaded by a client. The -.I filename -should be a filename recognizable to whatever file transfer protocol -the client can be expected to use to load the file. -.PP -.B The -.I server-name -.B statement -.PP - \fBserver-name\fR \fB"\fR\fIname\fR\fB";\fR -.PP -The \fIserver-name\fR statement can be used to inform the client of -the name of the server from which it is booting. \fIName\fR should -be the name that will be provided to the client. -.PP -.B The -.I next-server -.B statement -.PP - \fBnext-server\fR \fIserver-name\fR\fB;\fR -.PP -The \fInext-server\fR statement is used to specify the host address of -the server from which the initial boot file (specified in the -\fIfilename\fR statement) is to be loaded. \fIServer-name\fR should -be a numeric IP address or a domain name. If no \fInext-server\fR -parameter applies to a given client, the address specified in the -\fIserver-identifier\fR statement is used. -.PP -.B The -.I fixed-address -.B statement -.PP - \fBfixed-address\fR \fIaddress\fR [\fB,\fR \fIaddress\fR ... ]\fB;\fR -.PP -The \fIfixed-address\fR statement is used to assign one or more fixed -IP addresses to a client. It should only appear in a \fIhost\fR -declaration. If more than one address is supplied, then when the -client boots, it will be assigned the address which corresponds to the -network on which it is booting. If none of the addresses in the -\fIfixed-address\fR statement are on the network on which the client -is booting, that client will not match the \fIhost\fR declaration -containing that \fIfixed-address\fR statement. Each \fIaddress\fR -should be either an IP address or a domain name which resolves to one -or more IP addresses. -.PP -.B The -.I dynamic-bootp-lease-cutoff -.B statement -.PP - \fBdynamic-bootp-lease-cutoff\fR \fIdate\fR\fB;\fR -.PP -The \fIdynamic-bootp-lease-cutoff\fR statement sets the ending time -for all leases assigned dynamically to BOOTP clients. Because BOOTP -clients do not have any way of renewing leases, and don't know that -their leases could expire, by default dhcpd assignes infinite leases -to all BOOTP clients. However, it may make sense in some situations -to set a cutoff date for all BOOTP leases - for example, the end of a -school term, or the time at night when a facility is closed and all -machines are required to be powered off. -.PP -.I Date -should be the date on which all assigned BOOTP leases will end. The -date is specified in the form: -.PP -.ce 1 -W YYYY/MM/DD HH:MM:SS -.PP -W is the day of the week expressed as a number -from zero (Sunday) to six (Saturday). YYYY is the year, including the -century. MM is the month expressed as a number from 1 to 12. DD is -the day of the month, counting from 1. HH is the hour, from zero to -23. MM is the minute and SS is the second. The time is always in -Greenwich Mean Time (GMT), not local time. -.PP -.B The -.I dynamic-bootp-lease-length -.B statement -.PP - \fBdynamic-bootp-lease-length\fR \fIlength\fR\fB;\fR -.PP -The \fIdynamic-bootp-lease-length\fR statement is used to set the -length of leases dynamically assigned to BOOTP clients. At some -sites, it may be possible to assume that a lease is no longer in -use if its holder has not used BOOTP or DHCP to get its address within -a certain time period. The period is specified in \fIlength\fR as a -number of seconds. If a client reboots using BOOTP during the -timeout period, the lease duration is reset to \fIlength\fR, so a -BOOTP client that boots frequently enough will never lose its lease. -Needless to say, this parameter should be adjusted with extreme -caution. -.PP -.B The -.I boot-unknown-clients -.B statement -.PP - \fBboot-unknown-clients\fR \fIflag\fR\fB;\fR -.PP -The \fIboot-unknown-clients\fR statement is used to tell dhcpd whether -or not to dynamically assign addresses to unknown clients. If -\fIflag\fR is true (the default), then addresses are dynamically -assigned to unknown clients when available. If \fIflag\fR is -false, then addresses are provided only to clients which match at -least one host declaration. -.PP -.B The -.I get-lease-hostnames -.B statement -.PP - \fBget-lease-hostnames\fR \fIflag\fR\fB;\fR -.PP -The \fIget-lease-hostnames\fR statement is used to tell dhcpd whether -or not to look up the domain name corresponding to the IP address of -each address in the lease pool and use that address for the DHCP -\fIhostname\fR option. If \fIflag\fR is true, then this lookup is -done for all addresses in the current scope. By default, or if -\fIflag\fR is false, no lookups are done. -.PP -.B The -.I use-host-decl-names -.B statement -.PP - \fBuse-host-decl-names\fR \fIflag\fR\fB;\fR -.PP -If the \fIuse-host-decl-names\fR parameter is true in a given scope, -then for every host declaration within that scope, the name provided -for the host declaration will be supplied to the client as its -hostname. So, for example, -.PP -.nf - group { - use-host-decl-names on; - - host joe { - hardware ethernet 08:00:2b:4c:29:32; - fixed-address joe.fugue.com; - } - } - -is equivalent to - - host joe { - hardware ethernet 08:00:2b:4c:29:32; - fixed-address joe.fugue.com; - option host-name "joe"; - } -.fi -.PP -An \fIoption host-name\fR statement within a host declaration will -override the use of the name in the host declaration. -.SH REFERENCE: OPTION STATEMENTS -.PP -DHCP \fIoption\fR statements always start with the \fIoption\fR -keyword, followed by an option name, followed by option data. The -option names and data formats are described below. It is not -necessary to exhaustively specify all DHCP options - only those -options which are needed by clients must be specified. -.PP -Option data comes in a variety of formats, as defined below: -.PP -The -.B ip-address -data type can be entered either as an explicit IP -address (e.g., 239.254.197.10) or as a domain name (e.g., -haagen.isc.org). When entering a domain name, be sure that that -domain name resolves to a single IP address. -.PP -The -.B int32 -data type specifies a signed 32-bit integer. The -.B uint32 -data type specifies an unsigned 32-bit integer. The -.B int16 -and -.B uint16 -data types specify signed and unsigned 16-bit integers. The -.B int8 -and -.B uint8 -data types specify signed and unsigned 8-bit integers. -Unsigned 8-bit integers are also sometimes referred to as octets. -.PP -The -.B string -data type specifies an NVT ASCII string, which must be -enclosed in double quotes - for example, to specify a domain-name -option, the syntax would be -.nf -.sp 1 - option domain-name "isc.org"; -.fi -.PP -The -.B flag -data type specifies a boolean value. Booleans can be either true or -false (or on or off, if that makes more sense to you). -.PP -The -.B data-string -data type specifies either an NVT ASCII string -enclosed in double quotes, or a series of octets specified in -hexadecimal, seperated by colons. For example: -.nf -.sp 1 - option client-identifier "CLIENT-FOO"; -or - option client-identifier 43:4c:49:45:54:2d:46:4f:4f; -.fi -.PP -The documentation for the various options mentioned below is taken -from the latest IETF draft document on DHCP options. Options which -are not listed by name may be defined by the name option-\fInnn\fR, -where \fInnn\fI is the decimal number of the option code. These -options may be followed either by a string, enclosed in quotes, or by -a series of octets, expressed as two-digit hexadecimal numbers seperated -by colons. For example: -.PP -.nf - option option-133 "my-option-133-text"; - option option-129 1:54:c9:2b:47; -.fi -.PP -Because dhcpd does not know the format of these undefined option codes, -no checking is done to ensure the correctness of the entered data. -.PP -The standard options are: -.PP - \fBoption subnet-mask\fR \fIip-address\fR\fB;\fR -.PP -The subnet mask option specifies the client's subnet mask as per RFC -950. If no subnet mask option is provided anywhere in scope, as a -last resort dhcpd will use the subnet mask from the subnet declaration -for the network on which an address is being assigned. However, -.I any -subnet-mask option declaration that is in scope for the address being -assigned will override the subnet mask specified in the subnet -declaration. -.PP - \fBoption time-offset\fR \fIint32\fR\fB;\fR -.PP -The time-offset option specifies the offset of the client's subnet in -seconds from Coordinated Universal Time (UTC). -.PP - \fBoption routers\fR \fIip-address\fR [\fB,\fR \fIip-address\fR ... ]\fB;\fR -.PP -The routers option specifies a list of IP addresses for routers on the -client's subnet. Routers should be listed in order of preference. -.PP - \fBoption time-servers\fR \fIip-address [, \fIip-address\fR ... ]\fB;\fR -.PP -The time-server option specifies a list of RFC 868 time servers -available to the client. Servers should be listed in order of -preference. -.PP - \fBoption\fR \fBname-servers\fR \fIip-address\fR [\fB,\fR \fIip-address\fR ... ]; -.PP -The name-servers option specifies a list of IEN 116 name servers -available to the client. Servers should be listed in order of -preference. -.PP - \fBoption\fR \fBdomain-name-servers\fR \fIip-address\fR [\fB,\fR \fIip-address\fR ... ]\fB;\fR -.PP -The domain-name-servers option specifies a list of Domain Name System -(STD 13, RFC 1035) name servers available to the client. Servers -should be listed in order of preference. -.PP - \fBoption\fR \fBlog-servers\fR \fIip-address\fR [\fB,\fR \fIip-address\fR ... ]\fB;\fR -.PP -The log-server option specifies a list of MIT-LCS UDP log servers -available to the client. Servers should be listed in order of -preference. -.PP - \fBoption\fR \fBcookie-servers\fR \fIip-address\fR [\fB,\fR \fIip-address\fR ... ]\fB;\fR -.PP -The cookie server option specifies a list of RFC 865 cookie -servers available to the client. Servers should be listed in order -of preference. -.PP - \fBoption\fR \fBlpr-servers\fR \fIip-address \fR [\fB,\fR \fIip-address\fR ... ]\fB;\fR -.PP -The LPR server option specifies a list of RFC 1179 line printer -servers available to the client. Servers should be listed in order -of preference. -.PP - \fBoption\fR \fBimpress-servers\fR \fIip-address\fR [\fB,\fR \fIip-address\fR ... ]\fB;\fR -.PP -The impress-server option specifies a list of Imagen Impress servers -available to the client. Servers should be listed in order of -preference. -.PP - \fBoption\fR \fBresource-location-servers\fR \fIip-address\fR [\fB,\fR \fIip-address\fR ... ]\fB;\fR -.PP -This option specifies a list of RFC 887 Resource Location -servers available to the client. Servers should be listed in order -of preference. -.PP - \fBoption\fR \fBhost-name\fR \fIstring\fR\fB;\fR -.PP -This option specifies the name of the client. The name may or may -not be qualified with the local domain name (it is preferable to use -the domain-name option to specify the domain name). See RFC 1035 for -character set restrictions. -.PP - \fBoption\fR \fBboot-size\fR \fIuint16\fR\fB;\fR -.PP -This option specifies the length in 512-octet blocks of the default -boot image for the client. -.PP - \fBoption\fR \fBmerit-dump\fR \fIstring\fR\fB;\fR -.PP -This option specifies the path-name of a file to which the client's -core image should be dumped in the event the client crashes. The -path is formatted as a character string consisting of characters from -the NVT ASCII character set. -.PP - \fBoption\fR \fBdomain-name\fR \fIstring\fR\fB;\fR -.PP -This option specifies the domain name that client should use when -resolving hostnames via the Domain Name System. -.PP - \fBoption\fR \fBswap-server\fR \fIip-address\fR\fB;\fR -.PP -This specifies the IP address of the client's swap server. -.PP - \fBoption\fR \fBroot-path\fR \fIstring\fB;\fR\fR -.PP -This option specifies the path-name that contains the client's root -disk. The path is formatted as a character string consisting of -characters from the NVT ASCII character set. -.PP - \fBoption\fR \fBip-forwarding\fR \fIflag\fR\fB;\fR -.PP -This option specifies whether the client should configure its IP -layer for packet forwarding. A value of 0 means disable IP -forwarding, and a value of 1 means enable IP forwarding. -.PP - \fBoption\fR \fBnon-local-source-routing\fR \fIflag\fR\fB;\fR -.PP -This option specifies whether the client should configure its IP -layer to allow forwarding of datagrams with non-local source routes -(see Section 3.3.5 of [4] for a discussion of this topic). A value -of 0 means disallow forwarding of such datagrams, and a value of 1 -means allow forwarding. -.PP - \fBoption\fR \fBpolicy-filter\fR \fIip-address ip-address\fR [\fB,\fR \fIip-address ip-address\fR ... ]\fB;\fR -.PP -This option specifies policy filters for non-local source routing. -The filters consist of a list of IP addresses and masks which specify -destination/mask pairs with which to filter incoming source routes. -.PP -Any source routed datagram whose next-hop address does not match one -of the filters should be discarded by the client. -.PP -See STD 3 (RFC1122) for further information. -.PP - \fBoption\fR \fBmax-dgram-reassembly\fR \fIuint16\fR\fB;\fR -.PP -This option specifies the maximum size datagram that the client -should be prepared to reassemble. The minimum value legal value is -576. -.PP - \fBoption\fR \fBdefault-ip-ttl\fR \fIuint8;\fR -.PP -This option specifies the default time-to-live that the client should -use on outgoing datagrams. -.PP - \fBoption\fR \fBpath-mtu-aging-timeout\fR \fIuint32\fR\fB;\fR -.PP -This option specifies the timeout (in seconds) to use when aging Path -MTU values discovered by the mechanism defined in RFC 1191. -.PP - \fBoption\fR \fBpath-mtu-plateau-table\fR \fIuint16\fR [\fB,\fR \fIuint16\fR ... ]\fB;\fR -.PP -This option specifies a table of MTU sizes to use when performing -Path MTU Discovery as defined in RFC 1191. The table is formatted as -a list of 16-bit unsigned integers, ordered from smallest to largest. -The minimum MTU value cannot be smaller than 68. -.PP - \fBoption\fR \fBinterface-mtu\fR \fIuint16\fR\fB;\fR -.PP -This option specifies the MTU to use on this interface. The minimum -legal value for the MTU is 68. -.PP - \fBoption\fR \fBall-subnets-local\fR \fIflag\fR\fB;\fR -.PP -This option specifies whether or not the client may assume that all -subnets of the IP network to which the client is connected use the -same MTU as the subnet of that network to which the client is -directly connected. A value of 1 indicates that all subnets share -the same MTU. A value of 0 means that the client should assume that -some subnets of the directly connected network may have smaller MTUs. -.PP - \fBoption\fR \fBbroadcast-address\fR \fIip-address\fR\fB;\fR -.PP -This option specifies the broadcast address in use on the client's -subnet. Legal values for broadcast addresses are specified in -section 3.2.1.3 of STD 3 (RFC1122). -.PP - \fBoption\fR \fBperform-mask-discovery\fR \fIflag\fR\fB;\fR -.PP -This option specifies whether or not the client should perform subnet -mask discovery using ICMP. A value of 0 indicates that the client -should not perform mask discovery. A value of 1 means that the -client should perform mask discovery. -.PP - \fBoption\fR \fBmask-supplier\fR \fIflag\fR\fB;\fR -.PP -This option specifies whether or not the client should respond to -subnet mask requests using ICMP. A value of 0 indicates that the -client should not respond. A value of 1 means that the client should -respond. -.PP - \fBoption\fR \fBrouter-discovery\fR \fIflag\fR\fB;\fR -.PP -This option specifies whether or not the client should solicit -routers using the Router Discovery mechanism defined in RFC 1256. -A value of 0 indicates that the client should not perform -router discovery. A value of 1 means that the client should perform -router discovery. -.PP - \fBoption\fR \fBrouter-solicitation-address\fR \fIip-address\fR\fB;\fR -.PP -This option specifies the address to which the client should transmit -router solicitation requests. -.PP - \fBoption\fR \fBstatic-routes\fR \fIip-address ip-address\fR [\fB,\fR \fIip-address ip-address\fR ... ]\fB;\fR -.PP -This option specifies a list of static routes that the client should -install in its routing cache. If multiple routes to the same -destination are specified, they are listed in descending order of -priority. -.PP -The routes consist of a list of IP address pairs. The first address -is the destination address, and the second address is the router for -the destination. -.PP -The default route (0.0.0.0) is an illegal destination for a static -route. To specify the default route, use the -.B routers -option. -.PP - \fBoption\fR \fBtrailer-encapsulation\fR \fIflag\fR\fB;\fR -.PP -This option specifies whether or not the client should negotiate the -use of trailers (RFC 893 [14]) when using the ARP protocol. A value -of 0 indicates that the client should not attempt to use trailers. A -value of 1 means that the client should attempt to use trailers. -.PP - \fBoption\fR \fBarp-cache-timeout\fR \fIuint32\fR\fB;\fR -.PP -This option specifies the timeout in seconds for ARP cache entries. -.PP - \fBoption\fR \fBieee802-3-encapsulation\fR \fIflag\fR\fB;\fR -.PP -This option specifies whether or not the client should use Ethernet -Version 2 (RFC 894) or IEEE 802.3 (RFC 1042) encapsulation if the -interface is an Ethernet. A value of 0 indicates that the client -should use RFC 894 encapsulation. A value of 1 means that the client -should use RFC 1042 encapsulation. -.PP - \fBoption\fR \fBdefault-tcp-ttl\fR \fIuint8\fR\fB;\fR -.PP -This option specifies the default TTL that the client should use when -sending TCP segments. The minimum value is 1. -.PP - \fBoption\fR \fBtcp-keepalive-interval\fR \fIuint32\fR\fB;\fR -.PP -This option specifies the interval (in seconds) that the client TCP -should wait before sending a keepalive message on a TCP connection. -The time is specified as a 32-bit unsigned integer. A value of zero -indicates that the client should not generate keepalive messages on -connections unless specifically requested by an application. -.PP - \fBoption\fR \fBtcp-keepalive-garbage\fR \fIflag\fR\fB;\fR -.PP -This option specifies the whether or not the client should send TCP -keepalive messages with a octet of garbage for compatibility with -older implementations. A value of 0 indicates that a garbage octet -should not be sent. A value of 1 indicates that a garbage octet -should be sent. -.PP - \fBoption\fR \fBnis-domain\fR \fIstring\fR\fB;\fR -.PP -This option specifies the name of the client's NIS (Sun Network -Information Services) domain. The domain is formatted as a character -string consisting of characters from the NVT ASCII character set. -.PP - \fBoption\fR \fBnis-servers\fR \fIip-address\fR [\fB,\fR \fIip-address\fR ... ]\fB;\fR -.PP -This option specifies a list of IP addresses indicating NIS servers -available to the client. Servers should be listed in order of -preference. -.PP - \fBoption\fR \fBntp-servers\fR \fIip-address\fR [\fB,\fR \fIip-address\fR ... ]\fB;\fR -.PP -This option specifies a list of IP addresses indicating NTP (RFC 1035) -servers available to the client. Servers should be listed in order -of preference. -.PP - \fBoption\fR \fBnetbios-name-servers\fR \fIip-address\fR [\fB,\fR \fIip-address\fR ... ]\fB;\fR -.PP -The NetBIOS name server (NBNS) option specifies a list of RFC -1001/1002 NBNS name servers listed in order of preference. -.PP - \fBoption\fR \fBnetbios-dd-server\fR \fIip-address\fR [\fB,\fR \fIip-address\fR ... ]\fB;\fR -.PP -The NetBIOS datagram distribution server (NBDD) option specifies a -list of RFC 1001/1002 NBDD servers listed in order of preference. -.PP - \fBoption\fR \fBnetbios-node-type\fR \fIuint8\fR\fB;\fR -.PP -The NetBIOS node type option allows NetBIOS over TCP/IP clients which -are configurable to be configured as described in RFC 1001/1002. The -value is specified as a single octet which identifies the client type. -A value of 1 corresponds to a NetBIOS B-node; a value of 2 corresponds -to a P-node; a value of 4 corresponds to an M-node; a value of 8 -corresponds to an H-node. -.PP - \fBoption\fR \fBnetbios-scope\fR \fIstring\fR\fB;\fR -.PP -The NetBIOS scope option specifies the NetBIOS over TCP/IP scope -parameter for the client as specified in RFC 1001/1002. See RFC1001, -RFC1002, and RFC1035 for character-set restrictions. -.PP - \fBoption\fR \fBfont-servers\fR \fIip-address\fR [\fB,\fR \fIip-address\fR ... ]\fB;\fR -.PP -This option specifies a list of X Window System Font servers available -to the client. Servers should be listed in order of preference. -.PP - \fBoption\fR \fBx-display-manager\fR \fIip-address\fR [\fB,\fR \fIip-address\fR ... ]\fB;\fR -.PP -This option specifies a list of systems that are running the X Window -System Display Manager and are available to the client. Addresses -should be listed in order of preference. -.PP - \fBoption\fR \fBdhcp-client-identifier\fR \fIdata-string\fR\fB;\fR -.PP -This option can be used to specify the a DHCP client identifier in a -host declaration, so that dhcpd can find the host record by matching -against the client identifier. -.SH SEE ALSO -dhcpd.conf(5), dhcpd.leases(5), -draft-ietf-dhc-options-1533update-04.txt, draft-ietf-dhc-dhcp-07.txt. -.SH AUTHOR -.B dhcpd(8) -was written by Ted Lemon <mellon@vix.com> -under a contract with Vixie Labs. Funding -for this project was provided by the Internet Software Corporation. -Information about the Internet Software Consortium can be found at -.B http://www.isc.org/isc. diff --git a/server/dhcpd.conf.cat5 b/server/dhcpd.conf.cat5 deleted file mode 100644 index ea02aab4..00000000 --- a/server/dhcpd.conf.cat5 +++ /dev/null @@ -1,1188 +0,0 @@ - - - -dhcpd.conf(5) dhcpd.conf(5) - - -NNAAMMEE - dhcpd.conf - dhcpd configuration file - -DDEESSCCRRIIPPTTIIOONN - The dhcpd.conf file contains configuration information for - _d_h_c_p_d_, the Internet Software Consortium DHCP Server. - - The dhcpd.conf file is a free-form ASCII text file. It - is parsed by the recursive-descent parser built into - dhcpd. The file may contain extra tabs and newlines for - formatting purposes. Keywords in the file are case- - insensitive. Comments may be placed anywhere within the - file (except within quotes). Comments begin with the # - character and end at the end of the line. - - The file essentially consists of a list of statements. - Statements fall into two broad categories - parameters and - declarations. - - Parameter statements either say how to do something (e.g., - how long a lease to offer), whether to do something (e.g., - should dhcpd provide addresses to unknown clients), or - what parameters to provide to the client (e.g., use gate- - way 220.177.244.7). - - Declarations are used to describe the topology of the net- - work, to describe clients on the network, to provide - addresses that can be assigned to clients, or to apply a - group of parameters to a group of declarations. In any - group of parameters and declarations, all parameters must - be specified before any declarations which depend on those - parameters may be specified. - - Declarations about network topology include the _s_e_r_v_e_r_- - _i_d_e_n_t_i_f_i_e_r, the _s_h_a_r_e_d_-_n_e_t_w_o_r_k and the _s_u_b_n_e_t declara- - tions. If clients on a subnet are to be assigned - addresses dynamically, a _r_a_n_g_e declaration must appear - within the _s_u_b_n_e_t declaration. For clients with stati- - cally assigned addresses, or for installations where only - known clients will be served, each such client must have a - _h_o_s_t declaration. If parameters are to be applied to a - group of declarations which are not related strictly on a - per-subnet basis, the _g_r_o_u_p declaration can be used. - - Each dhcpd.conf file must have one (and only one) _s_e_r_v_e_r_- - _i_d_e_n_t_i_f_i_e_r declaration, which tells dhcpd the identifier - to use when issuing leases. For every subnet which will - be served, and for every subnet to which the dhcp server - is connected, there must be one _s_u_b_n_e_t declaration, which - tells dhcpd how to recognize that an address is on that - subnet. A _s_u_b_n_e_t declaration is required for each subnet - even if no addresses will be dynamically allocated on that - subnet. - - - - - 1 - - - - - -dhcpd.conf(5) dhcpd.conf(5) - - - Some installations have physical networks on which more - than one IP subnet operates. For example, if there is a - site-wide requirement that 8-bit subnet masks be used, but - a department with a single physical ethernet network - expands to the point where it has more than 254 nodes, it - may be necessary to run two 8-bit subnets on the same eth- - ernet until such time as a new physical network can be - added. In this case, the _s_u_b_n_e_t declarations for these - two networks may be enclosed in a _s_h_a_r_e_d_-_n_e_t_w_o_r_k declara- - tion. - - Some sites may have departments which have clients on more - than one subnet, but it may be desirable to offer those - clients a uniform set of parameters which are different - than what would be offered to clients from other depart- - ments on the same subnet. For clients which will be - declared explicitly with _h_o_s_t declarations, these declara- - tions can be enclosed in a _g_r_o_u_p declaration along with - the parameters which are common to that department. For - clients whose addresses will be dynamically assigned, - there is currently no way to group parameter assignments - other than by network topology. - - When a client is to be booted, its boot parameters are - determined by first consulting that client's _h_o_s_t declara- - tion (if any), then consulting the _g_r_o_u_p declaration (if - any) which enclosed that _h_o_s_t declaration, then consulting - the _s_u_b_n_e_t declaration for the subnet on which the client - is booting, then consulting the _s_h_a_r_e_d_-_n_e_t_w_o_r_k declaration - (if any) containing that subnet, and finally consulting - the top-level parameters which may be specified outside of - any declaration. - - When dhcpd tries to find a _h_o_s_t declaration for a client, - it first looks for a _h_o_s_t declaration which has a _f_i_x_e_d_- - _a_d_d_r_e_s_s parameter which matches the subnet or shared net- - work on which the client is booting. If it doesn't find - any such entry, it then tries to find an entry which has - no _f_i_x_e_d_-_a_d_d_r_e_s_s parameter. If no such entry is found, - then dhcpd acts as if there is no entry in the dhcpd.conf - file for that client, even if there is an entry for that - client on a different subnet or shared network. - -EEXXAAMMPPLLEESS - A typical dhcpd.conf file will look something like this: - - server-identifier dhcps.isc.org; - _g_l_o_b_a_l _p_a_r_a_m_e_t_e_r_s_._._. - - shared-network ISC-BIGGIE { - _s_h_a_r_e_d_-_n_e_t_w_o_r_k_-_s_p_e_c_i_f_i_c _p_a_r_a_m_e_t_e_r_s_._._. - subnet 204.254.239.0 netmask 255.255.255.224 { - _s_u_b_n_e_t_-_s_p_e_c_i_f_i_c _p_a_r_a_m_e_t_e_r_s_._._. - range 204.254.239.10 204.254.239.30; - - - - 2 - - - - - -dhcpd.conf(5) dhcpd.conf(5) - - - } - subnet 204.254.239.32 netmask 255.255.255.224 { - _s_u_b_n_e_t_-_s_p_e_c_i_f_i_c _p_a_r_a_m_e_t_e_r_s_._._. - range 204.254.239.42 204.254.239.62; - } - } - - subnet 204.254.239.64 netmask 255.255.255.224 { - _s_u_b_n_e_t_-_s_p_e_c_i_f_i_c _p_a_r_a_m_e_t_e_r_s_._._. - range 204.254.239.74 204.254.239.94; - } - - group { - _g_r_o_u_p_-_s_p_e_c_i_f_i_c _p_a_r_a_m_e_t_e_r_s_._._. - host zappo.test.isc.org { - _h_o_s_t_-_s_p_e_c_i_f_i_c _p_a_r_a_m_e_t_e_r_s_._._. - } - host beppo.test.isc.org { - _h_o_s_t_-_s_p_e_c_i_f_i_c _p_a_r_a_m_e_t_e_r_s_._._. - } - host harpo.test.isc.org { - _h_o_s_t_-_s_p_e_c_i_f_i_c _p_a_r_a_m_e_t_e_r_s_._._. - } - } - - Figure 1 - - - Notice that after the server-identifier declaration, - there's a place for global parameters. These might be - things like the organization's domain name, the addresses - of the name servers (if they are common to the entire - organization), and so on. So, for example: - - option domain-name "isc.org"; - option name-servers ns1.isc.org, ns2.isc.org; - - Figure 2 - - As you can see in Figure 2, it's legal to specify host - addresses in parameters as domain names rather than as - numeric IP addresses. If a given hostname resolves to - more than one IP address (for example, if that host has - two ethernet interfaces), both addresses are supplied to - the client. - - In Figure 1, you can see that both the shared-network - statement and the subnet statements can have parameters. - Let us say that the shared network _I_S_C_-_B_I_G_G_I_E supports an - entire department - perhaps the accounting department. - If accounting has its own domain, then a shared-network- - specific parameter might be: - - option domain-name "accounting.isc.org"; - - - - 3 - - - - - -dhcpd.conf(5) dhcpd.conf(5) - - - All subnet declarations appearing in the shared-network - declaration would then have the domain-name option set to - "accounting.isc.org" instead of just "isc.org". - - The most obvious reason for having subnet-specific parame- - ters as shown in Figure 1 is that each subnet, of neces- - sity, has its own router. So for the first subnet, for - example, there should be something like: - - option routers 204.254.239.1; - - Note that the address here is specified numerically. - This is not required - if you have a different domain name - for each interface on your router, it's perfectly legiti- - mate to use the domain name for that interface instead of - the numeric address. However, in many cases there may be - only one domain name for all of a router's IP addresses, - and it would not be appropriate to use that name here. - - In Figure 1 there is also a _g_r_o_u_p statement, which pro- - vides common parameters for a set of three hosts - zappo, - beppo and harpo. As you can see, these hosts are all in - the test.isc.org domain, so it might make sense for a - group-specific parameter to override the domain name sup- - plied to these hosts: - - option domain-name "test.isc.org"; - - Also, given the domain they're in, these are probably test - machines. If we wanted to test the DHCP leasing mecha- - nism, we might set the lease timeout somewhat shorter than - the default: - - max-lease-time 120; - default-lease-time 120; - - You may have noticed that while some parameters start with - the _o_p_t_i_o_n keyword, some do not. Parameters starting - with the _o_p_t_i_o_n keyword correspond to actual DHCP options, - while parameters that do not start with the option keyword - either control the behaviour of the DHCP server (e.g., how - long a lease dhcpd will give out), or specify client - parameters that are not optional in the DHCP protocol (for - example, server-name and filename). - - In Figure 1, each host had _h_o_s_t_-_s_p_e_c_i_f_i_c _p_a_r_a_m_e_t_e_r_s. - These could include such things as the _h_o_s_t_n_a_m_e option, - the name of a file to upload (the _f_i_l_e_n_a_m_e _p_a_r_a_m_e_t_e_r_) _a_n_d - _t_h_e _a_d_d_r_e_s_s _o_f _t_h_e _s_e_r_v_e_r _f_r_o_m _w_h_i_c_h _t_o _u_p_l_o_a_d _t_h_e _f_i_l_e - _(_t_h_e _n_e_x_t_-_s_e_r_v_e_r parameter). In general, any parameter - can appear anywhere that parameters are allowed, and will - be applied according to the scope in which the parameter - appears. - - - - - 4 - - - - - -dhcpd.conf(5) dhcpd.conf(5) - - - Imagine that you have a site with a lot of NCD X- - Terminals. These terminals come in a variety of models, - and you want to specify the boot files for each models. - One way to do this would be to have host declarations for - each server and group them by model: - - group { - filename "Xncd19r"; - next-server ncd-booter; - - host ncd1 { hardware ethernet 0:c0:c3:49:2b:57; } - host ncd4 { hardware ethernet 0:c0:c3:80:fc:32; } - host ncd8 { hardware ethernet 0:c0:c3:22:46:81; } - } - - group { - filename "Xncd19c"; - next-server ncd-booter; - - host ncd2 { hardware ethernet 0:c0:c3:88:2d:81; } - host ncd3 { hardware ethernet 0:c0:c3:00:14:11; } - } - - group { - filename "XncdHMX"; - next-server ncd-booter; - - host ncd1 { hardware ethernet 0:c0:c3:11:90:23; } - host ncd4 { hardware ethernet 0:c0:c3:91:a7:8; } - host ncd8 { hardware ethernet 0:c0:c3:cc:a:8f; } - } - -RREEFFEERREENNCCEE:: DDEECCLLAARRAATTIIOONNSS - TThhee _s_e_r_v_e_r_-_i_d_e_n_t_i_f_i_e_r ssttaatteemmeenntt - - sseerrvveerr--iiddeennttiiffiieerr _h_o_s_t_n_a_m_e;; - - The server-identifier declaration must be used exactly - once in each dhcpd.conf file to tell dhcpd what IP address - to use as its server identifier, as required by the DHCP - protocol. On a machine with a single interface, the - server identifier should be the primary address of that - interface. On machines with multiple interfaces, the - address of one such interface must be chosen. Any - address may be chosen, as long as it is the address of one - of the interfaces of that machine. - - TThhee _s_h_a_r_e_d_-_n_e_t_w_o_r_k ssttaatteemmeenntt - - sshhaarreedd--nneettwwoorrkk _n_a_m_e {{ - [ _p_a_r_a_m_e_t_e_r_s ] - [ _d_e_c_l_a_r_a_t_i_o_n_s ] - }} - - - - - 5 - - - - - -dhcpd.conf(5) dhcpd.conf(5) - - - The _s_h_a_r_e_d_-_n_e_t_w_o_r_k statement is used to inform the DHCP - server that some IP subnets actually share the same physi- - cal network. Any subnets in a shared network should be - declared within a _s_h_a_r_e_d_-_n_e_t_w_o_r_k statement. Parameters - specified in the _s_h_a_r_e_d_-_n_e_t_w_o_r_k statement will be used - when booting clients on those subnets unless parameters - provided at the subnet or host level override them. If - any subnet in a shared network has addresses available for - dynamic allocation, those addresses are collected into a - common pool for that shared network and assigned to - clients as needed. There is no way to distinguish on - which subnet of a shared network a client should boot. - - _N_a_m_e should be the name of the shared network. This name - is used when printing debugging messages, so it should be - descriptive for the shared network. The name may have - the syntax of a valid domain name (although it will never - be used as such), or it may be any arbitrary name, - enclosed in quotes. - - TThhee _s_u_b_n_e_t ssttaatteemmeenntt - - ssuubbnneett _s_u_b_n_e_t_-_n_u_m_b_e_r nneettmmaasskk _n_e_t_m_a_s_k {{ - [ _p_a_r_a_m_e_t_e_r_s ] - [ _d_e_c_l_a_r_a_t_i_o_n_s ] - }} - - The _s_u_b_n_e_t statement is used to provide dhcpd with enough - information to tell whether or not an IP address is on - that subnet. It may also be used to provide subnet- - specific parameters and to specify what addresses may be - dynamically allocated to clients booting on that subnet. - Such addresses are specified using the _r_a_n_g_e declaration. - - The _s_u_b_n_e_t_-_n_u_m_b_e_r should be an IP address or domain name - which resolves to the subnet number of the subnet being - described. The _n_e_t_m_a_s_k should be an IP address or domain - name which resolves to the subnet mask of the subnet being - described. The subnet number, together with the netmask, - are sufficient to determine whether any given IP address - is on the specified subnet. - - Although a netmask must be given with every subnet decla- - ration, it is recommended that if there is any variance in - subnet masks at a site, a subnet-mask option statement be - used in each subnet declaration to set the desired subnet - mask, since any subnet-mask option statement will override - the subnet mask declared in the subnet statement. - - TThhee _r_a_n_g_e ssttaatteemmeenntt - - rraannggee [ ddyynnaammiicc--bboooottpp ] _l_o_w_-_a_d_d_r_e_s_s [ _h_i_g_h_-_a_d_d_r_e_s_s];; - - For any subnet on which addresses will be assigned - - - - 6 - - - - - -dhcpd.conf(5) dhcpd.conf(5) - - - dynamically, there must be at least one _r_a_n_g_e statement. - The range statement gives the lowest and highest IP - addresses in a range. All IP addresses in the range - should be in the subnet in which the _r_a_n_g_e statement is - declared. The _d_y_n_a_m_i_c_-_b_o_o_t_p flag may be specified if - addresses in the specified range may be dynamically - assigned to BOOTP clients as well as DHCP clients. When - specifying a single address, _h_i_g_h_-_a_d_d_r_e_s_s can be omitted. - - TThhee _h_o_s_t ssttaatteemmeenntt - - hhoosstt _h_o_s_t_n_a_m_e { - [ _p_a_r_a_m_e_t_e_r_s ] - [ _d_e_c_l_a_r_a_t_i_o_n_s ] - }} - - There must be at least one hhoosstt statement for every BOOTP - client that is to be served. hhoosstt statements may also be - specified for DHCP clients, although this is not required - unless booting is only enabled for known hosts. - - If it is desirable to be able to boot a DHCP or BOOTP - client on more than one subnet with fixed addresses, more - than one address may be specified in the _f_i_x_e_d_-_a_d_d_r_e_s_s - parameter, or more than one hhoosstt statement may be speci- - fied. - - If client-specific boot parameters must change based on - the network to which the client is attached, then multiple - hhoosstt statements should be used. - - If a client is to be booted using a fixed address if it's - possible, but should be allocated a dynamic address other- - wise, then a hhoosstt statement must be specified without a - ffiixxeedd--aaddddrreessss clause. _h_o_s_t_n_a_m_e should be a name identify- - ing the host. If a _h_o_s_t_n_a_m_e option is not specified for - the host, _h_o_s_t_n_a_m_e is used. - - _H_o_s_t declarations are matched to actual DHCP or BOOTP - clients by matching the dhcp-client-identifier option - specified in the _h_o_s_t declaration to the one supplied by - the client, or, if the _h_o_s_t declaration or the client does - not provide a dhcp-client-identifier option, by matching - the _h_a_r_d_w_a_r_e parameter in the _h_o_s_t declaration to the net- - work hardware address supplied by the client. BOOTP - clients do not normally provide a _d_h_c_p_-_c_l_i_e_n_t_-_i_d_e_n_t_i_f_i_e_r, - so the hardware address must be used for all clients that - may boot using the BOOTP protocol. - - TThhee _g_r_o_u_p ssttaatteemmeenntt - - ggrroouupp { - [ _p_a_r_a_m_e_t_e_r_s ] - [ _d_e_c_l_a_r_a_t_i_o_n_s ] - - - - 7 - - - - - -dhcpd.conf(5) dhcpd.conf(5) - - - }} - - The group statement is used simply to apply one or more - parameters to a group of declarations. It can be used to - group hosts, shared networks, subnets, or even other - groups. - -RREEFFEERREENNCCEE:: PPAARRAAMMEETTEERRSS - TThhee _d_e_f_a_u_l_t_-_l_e_a_s_e_-_t_i_m_e ssttaatteemmeenntt - - ddeeffaauulltt--lleeaassee--ttiimmee _t_i_m_e;; - - _T_i_m_e should be the length in seconds that will be assigned - to a lease if the client requesting the lease does not ask - for a specific expiration time. - - TThhee _m_a_x_-_l_e_a_s_e_-_t_i_m_e ssttaatteemmeenntt - - mmaaxx--lleeaassee--ttiimmee _t_i_m_e;; - - _T_i_m_e should be the maximum length in seconds that will be - assigned to a lease if the client requesting the lease - asks for a specific expiration time. - - TThhee _h_a_r_d_w_a_r_e ssttaatteemmeenntt - - hhaarrddwwaarree _h_a_r_d_w_a_r_e_-_t_y_p_e _h_a_r_d_w_a_r_e_-_a_d_d_r_e_s_s;; - - In order for a BOOTP client to be recognized, its network - hardware address must be declared using a _h_a_r_d_w_a_r_e clause - in the _h_o_s_t statement. _h_a_r_d_w_a_r_e_-_t_y_p_e must be the name of - a physical hardware interface type. Currently, only the - eetthheerrnneett type is recognized, although support for ttookkeenn-- - rriinngg and ffddddii hardware types would also be desirable. The - _h_a_r_d_w_a_r_e_-_a_d_d_r_e_s_s should be a set of hexadecimal octets - (numbers from 0 through ff) seperated by colons. The - _h_a_r_d_w_a_r_e_f_R _s_t_a_t_e_m_e_n_t _m_a_y _a_l_s_o _b_e _u_s_e_d _f_o_r _D_H_C_P _c_l_i_e_n_t_s_. - - TThhee _f_i_l_e_n_a_m_e ssttaatteemmeenntt - - ffiilleennaammee ""_f_i_l_e_n_a_m_e"";; - - The _f_i_l_e_n_a_m_e statement can be used to specify the name of - the initial boot file which is to be loaded by a client. - The _f_i_l_e_n_a_m_e should be a filename recognizable to whatever - file transfer protocol the client can be expected to use - to load the file. - - TThhee _s_e_r_v_e_r_-_n_a_m_e ssttaatteemmeenntt - - sseerrvveerr--nnaammee ""_n_a_m_e"";; - - The _s_e_r_v_e_r_-_n_a_m_e statement can be used to inform the client - of the name of the server from which it is booting. _N_a_m_e - - - - 8 - - - - - -dhcpd.conf(5) dhcpd.conf(5) - - - should be the name that will be provided to the client. - - TThhee _n_e_x_t_-_s_e_r_v_e_r ssttaatteemmeenntt - - nneexxtt--sseerrvveerr _s_e_r_v_e_r_-_n_a_m_e;; - - The _n_e_x_t_-_s_e_r_v_e_r statement is used to specify the host - address of the server from which the initial boot file - (specified in the _f_i_l_e_n_a_m_e statement) is to be loaded. - _S_e_r_v_e_r_-_n_a_m_e should be a numeric IP address or a domain - name. If no _n_e_x_t_-_s_e_r_v_e_r parameter applies to a given - client, the address specified in the _s_e_r_v_e_r_-_i_d_e_n_t_i_f_i_e_r - statement is used. - - TThhee _f_i_x_e_d_-_a_d_d_r_e_s_s ssttaatteemmeenntt - - ffiixxeedd--aaddddrreessss _a_d_d_r_e_s_s [,, _a_d_d_r_e_s_s ... ];; - - The _f_i_x_e_d_-_a_d_d_r_e_s_s statement is used to assign one or more - fixed IP addresses to a client. It should only appear in - a _h_o_s_t declaration. If more than one address is supplied, - then when the client boots, it will be assigned the - address which corresponds to the network on which it is - booting. If none of the addresses in the _f_i_x_e_d_-_a_d_d_r_e_s_s - statement are on the network on which the client is boot- - ing, that client will not match the _h_o_s_t declaration con- - taining that _f_i_x_e_d_-_a_d_d_r_e_s_s statement. Each _a_d_d_r_e_s_s should - be either an IP address or a domain name which resolves to - one or more IP addresses. - - TThhee _d_y_n_a_m_i_c_-_b_o_o_t_p_-_l_e_a_s_e_-_c_u_t_o_f_f ssttaatteemmeenntt - - ddyynnaammiicc--bboooottpp--lleeaassee--ccuuttooffff _d_a_t_e;; - - The _d_y_n_a_m_i_c_-_b_o_o_t_p_-_l_e_a_s_e_-_c_u_t_o_f_f statement sets the ending - time for all leases assigned dynamically to BOOTP clients. - Because BOOTP clients do not have any way of renewing - leases, and don't know that their leases could expire, by - default dhcpd assignes infinite leases to all BOOTP - clients. However, it may make sense in some situations to - set a cutoff date for all BOOTP leases - for example, the - end of a school term, or the time at night when a facility - is closed and all machines are required to be powered off. - - _D_a_t_e should be the date on which all assigned BOOTP leases - will end. The date is specified in the form: - - W YYYY/MM/DD HH:MM:SS - - W is the day of the week expressed as a number from zero - (Sunday) to six (Saturday). YYYY is the year, including - the century. MM is the month expressed as a number from 1 - to 12. DD is the day of the month, counting from 1. HH - is the hour, from zero to 23. MM is the minute and SS is - - - - 9 - - - - - -dhcpd.conf(5) dhcpd.conf(5) - - - the second. The time is always in Greenwich Mean Time - (GMT), not local time. - - TThhee _d_y_n_a_m_i_c_-_b_o_o_t_p_-_l_e_a_s_e_-_l_e_n_g_t_h ssttaatteemmeenntt - - ddyynnaammiicc--bboooottpp--lleeaassee--lleennggtthh _l_e_n_g_t_h;; - - The _d_y_n_a_m_i_c_-_b_o_o_t_p_-_l_e_a_s_e_-_l_e_n_g_t_h statement is used to set - the length of leases dynamically assigned to BOOTP - clients. At some sites, it may be possible to assume - that a lease is no longer in use if its holder has not - used BOOTP or DHCP to get its address within a certain - time period. The period is specified in _l_e_n_g_t_h as a num- - ber of seconds. If a client reboots using BOOTP during - the timeout period, the lease duration is reset to _l_e_n_g_t_h, - so a BOOTP client that boots frequently enough will never - lose its lease. Needless to say, this parameter should be - adjusted with extreme caution. - - TThhee _b_o_o_t_-_u_n_k_n_o_w_n_-_c_l_i_e_n_t_s ssttaatteemmeenntt - - bboooott--uunnkknnoowwnn--cclliieennttss _f_l_a_g;; - - The _b_o_o_t_-_u_n_k_n_o_w_n_-_c_l_i_e_n_t_s statement is used to tell dhcpd - whether or not to dynamically assign addresses to unknown - clients. If _f_l_a_g is true (the default), then addresses - are dynamically assigned to unknown clients when avail- - able. If _f_l_a_g is false, then addresses are provided only - to clients which match at least one host declaration. - - TThhee _g_e_t_-_l_e_a_s_e_-_h_o_s_t_n_a_m_e_s ssttaatteemmeenntt - - ggeett--lleeaassee--hhoossttnnaammeess _f_l_a_g;; - - The _g_e_t_-_l_e_a_s_e_-_h_o_s_t_n_a_m_e_s statement is used to tell dhcpd - whether or not to look up the domain name corresponding to - the IP address of each address in the lease pool and use - that address for the DHCP _h_o_s_t_n_a_m_e option. If _f_l_a_g is - true, then this lookup is done for all addresses in the - current scope. By default, or if _f_l_a_g is false, no - lookups are done. - - TThhee _u_s_e_-_h_o_s_t_-_d_e_c_l_-_n_a_m_e_s ssttaatteemmeenntt - - uussee--hhoosstt--ddeeccll--nnaammeess _f_l_a_g;; - - If the _u_s_e_-_h_o_s_t_-_d_e_c_l_-_n_a_m_e_s parameter is true in a given - scope, then for every host declaration within that scope, - the name provided for the host declaration will be sup- - plied to the client as its hostname. So, for example, - - group { - use-host-decl-names on; - - - - - 10 - - - - - -dhcpd.conf(5) dhcpd.conf(5) - - - host joe { - hardware ethernet 08:00:2b:4c:29:32; - fixed-address joe.fugue.com; - } - } - - is equivalent to - - host joe { - hardware ethernet 08:00:2b:4c:29:32; - fixed-address joe.fugue.com; - option host-name "joe"; - } - - An _o_p_t_i_o_n _h_o_s_t_-_n_a_m_e statement within a host declaration - will override the use of the name in the host declaration. - -RREEFFEERREENNCCEE:: OOPPTTIIOONN SSTTAATTEEMMEENNTTSS - DHCP _o_p_t_i_o_n statements always start with the _o_p_t_i_o_n key- - word, followed by an option name, followed by option data. - The option names and data formats are described below. - It is not necessary to exhaustively specify all DHCP - options - only those options which are needed by clients - must be specified. - - Option data comes in a variety of formats, as defined - below: - - The iipp--aaddddrreessss data type can be entered either as an - explicit IP address (e.g., 239.254.197.10) or as a domain - name (e.g., haagen.isc.org). When entering a domain name, - be sure that that domain name resolves to a single IP - address. - - The iinntt3322 data type specifies a signed 32-bit integer. - The uuiinntt3322 data type specifies an unsigned 32-bit integer. - The iinntt1166 and uuiinntt1166 data types specify signed and - unsigned 16-bit integers. The iinntt88 and uuiinntt88 data types - specify signed and unsigned 8-bit integers. Unsigned - 8-bit integers are also sometimes referred to as octets. - - The ssttrriinngg data type specifies an NVT ASCII string, which - must be enclosed in double quotes - for example, to spec- - ify a domain-name option, the syntax would be - - option domain-name "isc.org"; - - The ffllaagg data type specifies a boolean value. Booleans - can be either true or false (or on or off, if that makes - more sense to you). - - The ddaattaa--ssttrriinngg data type specifies either an NVT ASCII - string enclosed in double quotes, or a series of octets - specified in hexadecimal, seperated by colons. For - - - - 11 - - - - - -dhcpd.conf(5) dhcpd.conf(5) - - - example: - - option client-identifier "CLIENT-FOO"; - or - option client-identifier 43:4c:49:45:54:2d:46:4f:4f; - - The documentation for the various options mentioned below - is taken from the latest IETF draft document on DHCP - options. Options which are not listed by name may be - defined by the name option-_n_n_n, where _n_n_n _i_s _t_h_e _d_e_c_i_m_a_l - _n_u_m_b_e_r _o_f _t_h_e _o_p_t_i_o_n _c_o_d_e_. _T_h_e_s_e _o_p_t_i_o_n_s _m_a_y _b_e _f_o_l_l_o_w_e_d - _e_i_t_h_e_r _b_y _a _s_t_r_i_n_g_, _e_n_c_l_o_s_e_d _i_n _q_u_o_t_e_s_, _o_r _b_y _a _s_e_r_i_e_s _o_f - _o_c_t_e_t_s_, _e_x_p_r_e_s_s_e_d _a_s _t_w_o_-_d_i_g_i_t _h_e_x_a_d_e_c_i_m_a_l _n_u_m_b_e_r_s _s_e_p_e_r_- - _a_t_e_d _b_y _c_o_l_o_n_s_. _F_o_r _e_x_a_m_p_l_e_: - - option option-133 "my-option-133-text"; - option option-129 1:54:c9:2b:47; - - Because dhcpd does not know the format of these undefined - option codes, no checking is done to ensure the correct- - ness of the entered data. - - The standard options are: - - ooppttiioonn ssuubbnneett--mmaasskk _i_p_-_a_d_d_r_e_s_s;; - - The subnet mask option specifies the client's subnet mask - as per RFC 950. If no subnet mask option is provided any- - where in scope, as a last resort dhcpd will use the subnet - mask from the subnet declaration for the network on which - an address is being assigned. However, _a_n_y subnet-mask - option declaration that is in scope for the address being - assigned will override the subnet mask specified in the - subnet declaration. - - ooppttiioonn ttiimmee--ooffffsseett _i_n_t_3_2;; - - The time-offset option specifies the offset of the - client's subnet in seconds from Coordinated Universal Time - (UTC). - - ooppttiioonn rroouutteerrss _i_p_-_a_d_d_r_e_s_s [,, _i_p_-_a_d_d_r_e_s_s ... ];; - - The routers option specifies a list of IP addresses for - routers on the client's subnet. Routers should be listed - in order of preference. - - ooppttiioonn ttiimmee--sseerrvveerrss _i_p_-_a_d_d_r_e_s_s _[_, _i_p_-_a_d_d_r_e_s_s ... ];; - - The time-server option specifies a list of RFC 868 time - servers available to the client. Servers should be listed - in order of preference. - - ooppttiioonn nnaammee--sseerrvveerrss _i_p_-_a_d_d_r_e_s_s [,, _i_p_-_a_d_d_r_e_s_s ... ]; - - - - 12 - - - - - -dhcpd.conf(5) dhcpd.conf(5) - - - The name-servers option specifies a list of IEN 116 name - servers available to the client. Servers should be listed - in order of preference. - - ooppttiioonn ddoommaaiinn--nnaammee--sseerrvveerrss _i_p_-_a_d_d_r_e_s_s [,, _i_p_-_a_d_d_r_e_s_s ... - ];; - - The domain-name-servers option specifies a list of Domain - Name System (STD 13, RFC 1035) name servers available to - the client. Servers should be listed in order of prefer- - ence. - - ooppttiioonn lloogg--sseerrvveerrss _i_p_-_a_d_d_r_e_s_s [,, _i_p_-_a_d_d_r_e_s_s ... ];; - - The log-server option specifies a list of MIT-LCS UDP log - servers available to the client. Servers should be listed - in order of preference. - - ooppttiioonn ccooookkiiee--sseerrvveerrss _i_p_-_a_d_d_r_e_s_s [,, _i_p_-_a_d_d_r_e_s_s ... ];; - - The cookie server option specifies a list of RFC 865 - cookie servers available to the client. Servers should be - listed in order of preference. - - ooppttiioonn llpprr--sseerrvveerrss _i_p_-_a_d_d_r_e_s_s [,, _i_p_-_a_d_d_r_e_s_s ... ];; - - The LPR server option specifies a list of RFC 1179 line - printer servers available to the client. Servers should - be listed in order of preference. - - ooppttiioonn iimmpprreessss--sseerrvveerrss _i_p_-_a_d_d_r_e_s_s [,, _i_p_-_a_d_d_r_e_s_s ... ];; - - The impress-server option specifies a list of Imagen - Impress servers available to the client. Servers should - be listed in order of preference. - - ooppttiioonn rreessoouurrccee--llooccaattiioonn--sseerrvveerrss _i_p_-_a_d_d_r_e_s_s [,, _i_p_-_a_d_d_r_e_s_s - ... ];; - - This option specifies a list of RFC 887 Resource Location - servers available to the client. Servers should be listed - in order of preference. - - ooppttiioonn hhoosstt--nnaammee _s_t_r_i_n_g;; - - This option specifies the name of the client. The name - may or may not be qualified with the local domain name (it - is preferable to use the domain-name option to specify the - domain name). See RFC 1035 for character set restric- - tions. - - ooppttiioonn bboooott--ssiizzee _u_i_n_t_1_6;; - - This option specifies the length in 512-octet blocks of - - - - 13 - - - - - -dhcpd.conf(5) dhcpd.conf(5) - - - the default boot image for the client. - - ooppttiioonn mmeerriitt--dduummpp _s_t_r_i_n_g;; - - This option specifies the path-name of a file to which the - client's core image should be dumped in the event the - client crashes. The path is formatted as a character - string consisting of characters from the NVT ASCII charac- - ter set. - - ooppttiioonn ddoommaaiinn--nnaammee _s_t_r_i_n_g;; - - This option specifies the domain name that client should - use when resolving hostnames via the Domain Name System. - - ooppttiioonn sswwaapp--sseerrvveerr _i_p_-_a_d_d_r_e_s_s;; - - This specifies the IP address of the client's swap server. - - ooppttiioonn rroooott--ppaatthh _s_t_r_i_n_g;; - - This option specifies the path-name that contains the - client's root disk. The path is formatted as a character - string consisting of characters from the NVT ASCII charac- - ter set. - - ooppttiioonn iipp--ffoorrwwaarrddiinngg _f_l_a_g;; - - This option specifies whether the client should configure - its IP layer for packet forwarding. A value of 0 means - disable IP forwarding, and a value of 1 means enable IP - forwarding. - - ooppttiioonn nnoonn--llooccaall--ssoouurrccee--rroouuttiinngg _f_l_a_g;; - - This option specifies whether the client should configure - its IP layer to allow forwarding of datagrams with non- - local source routes (see Section 3.3.5 of [4] for a dis- - cussion of this topic). A value of 0 means disallow for- - warding of such datagrams, and a value of 1 means allow - forwarding. - - ooppttiioonn ppoolliiccyy--ffiilltteerr _i_p_-_a_d_d_r_e_s_s _i_p_-_a_d_d_r_e_s_s [,, _i_p_-_a_d_d_r_e_s_s - _i_p_-_a_d_d_r_e_s_s ... ];; - - This option specifies policy filters for non-local source - routing. The filters consist of a list of IP addresses - and masks which specify destination/mask pairs with which - to filter incoming source routes. - - Any source routed datagram whose next-hop address does not - match one of the filters should be discarded by the - client. - - - - - 14 - - - - - -dhcpd.conf(5) dhcpd.conf(5) - - - See STD 3 (RFC1122) for further information. - - ooppttiioonn mmaaxx--ddggrraamm--rreeaasssseemmbbllyy _u_i_n_t_1_6;; - - This option specifies the maximum size datagram that the - client should be prepared to reassemble. The minimum - value legal value is 576. - - ooppttiioonn ddeeffaauulltt--iipp--ttttll _u_i_n_t_8_; - - This option specifies the default time-to-live that the - client should use on outgoing datagrams. - - ooppttiioonn ppaatthh--mmttuu--aaggiinngg--ttiimmeeoouutt _u_i_n_t_3_2;; - - This option specifies the timeout (in seconds) to use when - aging Path MTU values discovered by the mechanism defined - in RFC 1191. - - ooppttiioonn ppaatthh--mmttuu--ppllaatteeaauu--ttaabbllee _u_i_n_t_1_6 [,, _u_i_n_t_1_6 ... ];; - - This option specifies a table of MTU sizes to use when - performing Path MTU Discovery as defined in RFC 1191. The - table is formatted as a list of 16-bit unsigned integers, - ordered from smallest to largest. The minimum MTU value - cannot be smaller than 68. - - ooppttiioonn iinntteerrffaaccee--mmttuu _u_i_n_t_1_6;; - - This option specifies the MTU to use on this interface. - The minimum legal value for the MTU is 68. - - ooppttiioonn aallll--ssuubbnneettss--llooccaall _f_l_a_g;; - - This option specifies whether or not the client may assume - that all subnets of the IP network to which the client is - connected use the same MTU as the subnet of that network - to which the client is directly connected. A value of 1 - indicates that all subnets share the same MTU. A value of - 0 means that the client should assume that some subnets of - the directly connected network may have smaller MTUs. - - ooppttiioonn bbrrooaaddccaasstt--aaddddrreessss _i_p_-_a_d_d_r_e_s_s;; - - This option specifies the broadcast address in use on the - client's subnet. Legal values for broadcast addresses are - specified in section 3.2.1.3 of STD 3 (RFC1122). - - ooppttiioonn ppeerrffoorrmm--mmaasskk--ddiissccoovveerryy _f_l_a_g;; - - This option specifies whether or not the client should - perform subnet mask discovery using ICMP. A value of 0 - indicates that the client should not perform mask discov- - ery. A value of 1 means that the client should perform - - - - 15 - - - - - -dhcpd.conf(5) dhcpd.conf(5) - - - mask discovery. - - ooppttiioonn mmaasskk--ssuupppplliieerr _f_l_a_g;; - - This option specifies whether or not the client should - respond to subnet mask requests using ICMP. A value of 0 - indicates that the client should not respond. A value of - 1 means that the client should respond. - - ooppttiioonn rroouutteerr--ddiissccoovveerryy _f_l_a_g;; - - This option specifies whether or not the client should - solicit routers using the Router Discovery mechanism - defined in RFC 1256. A value of 0 indicates that the - client should not perform router discovery. A value of 1 - means that the client should perform router discovery. - - ooppttiioonn rroouutteerr--ssoolliicciittaattiioonn--aaddddrreessss _i_p_-_a_d_d_r_e_s_s;; - - This option specifies the address to which the client - should transmit router solicitation requests. - - ooppttiioonn ssttaattiicc--rroouutteess _i_p_-_a_d_d_r_e_s_s _i_p_-_a_d_d_r_e_s_s [,, _i_p_-_a_d_d_r_e_s_s - _i_p_-_a_d_d_r_e_s_s ... ];; - - This option specifies a list of static routes that the - client should install in its routing cache. If multiple - routes to the same destination are specified, they are - listed in descending order of priority. - - The routes consist of a list of IP address pairs. The - first address is the destination address, and the second - address is the router for the destination. - - The default route (0.0.0.0) is an illegal destination for - a static route. To specify the default route, use the - rroouutteerrss option. - - ooppttiioonn ttrraaiilleerr--eennccaappssuullaattiioonn _f_l_a_g;; - - This option specifies whether or not the client should - negotiate the use of trailers (RFC 893 [14]) when using - the ARP protocol. A value of 0 indicates that the client - should not attempt to use trailers. A value of 1 means - that the client should attempt to use trailers. - - ooppttiioonn aarrpp--ccaacchhee--ttiimmeeoouutt _u_i_n_t_3_2;; - - This option specifies the timeout in seconds for ARP cache - entries. - - ooppttiioonn iieeeeee880022--33--eennccaappssuullaattiioonn _f_l_a_g;; - - This option specifies whether or not the client should use - - - - 16 - - - - - -dhcpd.conf(5) dhcpd.conf(5) - - - Ethernet Version 2 (RFC 894) or IEEE 802.3 (RFC 1042) - encapsulation if the interface is an Ethernet. A value of - 0 indicates that the client should use RFC 894 encapsula- - tion. A value of 1 means that the client should use RFC - 1042 encapsulation. - - ooppttiioonn ddeeffaauulltt--ttccpp--ttttll _u_i_n_t_8;; - - This option specifies the default TTL that the client - should use when sending TCP segments. The minimum value - is 1. - - ooppttiioonn ttccpp--kkeeeeppaalliivvee--iinntteerrvvaall _u_i_n_t_3_2;; - - This option specifies the interval (in seconds) that the - client TCP should wait before sending a keepalive message - on a TCP connection. The time is specified as a 32-bit - unsigned integer. A value of zero indicates that the - client should not generate keepalive messages on connec- - tions unless specifically requested by an application. - - ooppttiioonn ttccpp--kkeeeeppaalliivvee--ggaarrbbaaggee _f_l_a_g;; - - This option specifies the whether or not the client should - send TCP keepalive messages with a octet of garbage for - compatibility with older implementations. A value of 0 - indicates that a garbage octet should not be sent. A value - of 1 indicates that a garbage octet should be sent. - - ooppttiioonn nniiss--ddoommaaiinn _s_t_r_i_n_g;; - - This option specifies the name of the client's NIS (Sun - Network Information Services) domain. The domain is for- - matted as a character string consisting of characters from - the NVT ASCII character set. - - ooppttiioonn nniiss--sseerrvveerrss _i_p_-_a_d_d_r_e_s_s [,, _i_p_-_a_d_d_r_e_s_s ... ];; - - This option specifies a list of IP addresses indicating - NIS servers available to the client. Servers should be - listed in order of preference. - - ooppttiioonn nnttpp--sseerrvveerrss _i_p_-_a_d_d_r_e_s_s [,, _i_p_-_a_d_d_r_e_s_s ... ];; - - This option specifies a list of IP addresses indicating - NTP (RFC 1035) servers available to the client. Servers - should be listed in order of preference. - - ooppttiioonn nneettbbiiooss--nnaammee--sseerrvveerrss _i_p_-_a_d_d_r_e_s_s [,, _i_p_-_a_d_d_r_e_s_s ... - ];; - - The NetBIOS name server (NBNS) option specifies a list of - RFC 1001/1002 NBNS name servers listed in order of prefer- - ence. - - - - 17 - - - - - -dhcpd.conf(5) dhcpd.conf(5) - - - ooppttiioonn nneettbbiiooss--dddd--sseerrvveerr _i_p_-_a_d_d_r_e_s_s [,, _i_p_-_a_d_d_r_e_s_s ... ];; - - The NetBIOS datagram distribution server (NBDD) option - specifies a list of RFC 1001/1002 NBDD servers listed in - order of preference. - - ooppttiioonn nneettbbiiooss--nnooddee--ttyyppee _u_i_n_t_8;; - - The NetBIOS node type option allows NetBIOS over TCP/IP - clients which are configurable to be configured as - described in RFC 1001/1002. The value is specified as a - single octet which identifies the client type. A value of - 1 corresponds to a NetBIOS B-node; a value of 2 corre- - sponds to a P-node; a value of 4 corresponds to an M-node; - a value of 8 corresponds to an H-node. - - ooppttiioonn nneettbbiiooss--ssccooppee _s_t_r_i_n_g;; - - The NetBIOS scope option specifies the NetBIOS over TCP/IP - scope parameter for the client as specified in RFC - 1001/1002. See RFC1001, RFC1002, and RFC1035 for charac- - ter-set restrictions. - - ooppttiioonn ffoonntt--sseerrvveerrss _i_p_-_a_d_d_r_e_s_s [,, _i_p_-_a_d_d_r_e_s_s ... ];; - - This option specifies a list of X Window System Font - servers available to the client. Servers should be listed - in order of preference. - - ooppttiioonn xx--ddiissppllaayy--mmaannaaggeerr _i_p_-_a_d_d_r_e_s_s [,, _i_p_-_a_d_d_r_e_s_s ... ];; - - This option specifies a list of systems that are running - the X Window System Display Manager and are available to - the client. Addresses should be listed in order of pref- - erence. - - ooppttiioonn ddhhccpp--cclliieenntt--iiddeennttiiffiieerr _d_a_t_a_-_s_t_r_i_n_g;; - - This option can be used to specify the a DHCP client iden- - tifier in a host declaration, so that dhcpd can find the - host record by matching against the client identifier. - -SSEEEE AALLSSOO - dhcpd.conf(5), dhcpd.leases(5), draft-ietf-dhc- - options-1533update-04.txt, draft-ietf-dhc-dhcp-07.txt. - -AAUUTTHHOORR - ddhhccppdd((88)) was written by Ted Lemon <mellon@vix.com> under a - contract with Vixie Labs. Funding for this project was - provided by the Internet Software Corporation. Informa- - tion about the Internet Software Consortium can be found - at hhttttpp::////wwwwww..iisscc..oorrgg//iisscc.. - - - - - - 18 - - |