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authorRonnie Sahlberg <ronniesahlberg@gmail.com>2009-05-25 12:33:52 +1000
committerRonnie Sahlberg <ronniesahlberg@gmail.com>2009-05-25 12:33:52 +1000
commitcaf0e863a4b7045aeb02ddc9101dca5983901cd8 (patch)
tree4b2c669671c2a3dd34cf9bab64e11ccae0974425 /ctdb/utils
parent7b163bca180ccddc3fb95fd3f2ed718f28c31b36 (diff)
downloadsamba-caf0e863a4b7045aeb02ddc9101dca5983901cd8.tar.gz
remove the obsolete ipmux component.
this is replaced by LVS since a long time (This used to be ctdb commit dca41ec04788922ce5f4c52d346872b3e35f8cbb)
Diffstat (limited to 'ctdb/utils')
-rw-r--r--ctdb/utils/ipmux/ipmux.c268
1 files changed, 0 insertions, 268 deletions
diff --git a/ctdb/utils/ipmux/ipmux.c b/ctdb/utils/ipmux/ipmux.c
deleted file mode 100644
index 598e9dcb6f2..00000000000
--- a/ctdb/utils/ipmux/ipmux.c
+++ /dev/null
@@ -1,268 +0,0 @@
-/*
- simple ip multiplexer
-
- Copyright (C) Ronnie Sahlberg 2007
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, see <http://www.gnu.org/licenses/>.
-*/
-
-#include "includes.h"
-#include "lib/events/events.h"
-#include "system/filesys.h"
-#include "system/network.h"
-#include "popt.h"
-#include "cmdline.h"
-#include "ctdb.h"
-#include "ctdb_private.h"
-
-#if defined(HAVE_LINUX_NETFILTER_H) && defined(HAVE_LIBIPQ_H)
-#include <linux/netfilter.h>
-#include <libipq.h>
-
-#define CONTROL_TIMEOUT() timeval_current_ofs(5, 0)
-
-struct ipmux_node {
- uint32_t pnn;
- ctdb_sock_addr addr;
-};
-struct ipmux_node *ipmux_nodes;
-
-/*
- This function is used to open a raw socket to send tickles from
- */
-int ctdb_sys_open_sending_socket(void)
-{
- int s, ret;
- uint32_t one = 1;
-
- s = socket(AF_INET, SOCK_RAW, htons(IPPROTO_RAW));
- if (s == -1) {
- DEBUG(DEBUG_CRIT,(__location__ " failed to open raw socket (%s)\n",
- strerror(errno)));
- return -1;
- }
-
- ret = setsockopt(s, SOL_IP, IP_HDRINCL, &one, sizeof(one));
- if (ret != 0) {
- DEBUG(DEBUG_CRIT,(__location__ " failed to setup IP headers (%s)\n",
- strerror(errno)));
- close(s);
- return -1;
- }
-
- set_nonblocking(s);
- set_close_on_exec(s);
-
- return s;
-}
-
-
-/*
- main program
-*/
-int main(int argc, const char *argv[])
-{
- struct ctdb_context *ctdb;
- struct poptOption popt_options[] = {
- POPT_AUTOHELP
- POPT_CTDB_CMDLINE
- POPT_TABLEEND
- };
- int opt;
- const char **extra_argv;
- int extra_argc = 0;
- int ret;
- poptContext pc;
- struct event_context *ev;
- uint32_t mypnn, recmaster;
- TALLOC_CTX *mem_ctx=NULL;
- struct ctdb_node_map *nodemap;
- int i, num_nodes;
- int s;
- struct ipq_handle *ipqh;
-#define PKTSIZE 65535
- unsigned char pktbuf[PKTSIZE];
- ipq_packet_msg_t *ipqp;
- struct iphdr *ip;
- int hash;
-
- pc = poptGetContext(argv[0], argc, argv, popt_options, POPT_CONTEXT_KEEP_FIRST);
-
- while ((opt = poptGetNextOpt(pc)) != -1) {
- switch (opt) {
- default:
- fprintf(stderr, "Invalid option %s: %s\n",
- poptBadOption(pc, 0), poptStrerror(opt));
- exit(1);
- }
- }
-
- /* talloc_enable_leak_report_full(); */
-
- /* setup the remaining options for the main program to use */
- extra_argv = poptGetArgs(pc);
- if (extra_argv) {
- extra_argv++;
- while (extra_argv[extra_argc]) extra_argc++;
- }
-
- ev = event_context_init(NULL);
-
- ctdb = ctdb_cmdline_client(ev);
-
-
- mem_ctx = talloc_new(ctdb);
-
- /* get our pnn */
- mypnn = ctdb_ctrl_getpnn(ctdb, CONTROL_TIMEOUT(), CTDB_CURRENT_NODE);
- if (mypnn == (uint32_t)-1) {
- DEBUG(0,("IPMUX: Failed to get local pnn - exiting\n"));
- talloc_free(mem_ctx);
- exit(10);
- }
-
-
- /* get the recmaster */
- ret = ctdb_ctrl_getrecmaster(ctdb, mem_ctx, CONTROL_TIMEOUT(), CTDB_CURRENT_NODE, &recmaster);
- if (ret != 0) {
- DEBUG(0,("IPMUX: Failed to get recmaster - exiting\n"));
- talloc_free(mem_ctx);
- exit(10);
- }
-
-
- /* verify we are the recmaster */
- if (recmaster != mypnn) {
- DEBUG(0,("IPMUX: we are not the recmaster - exiting\n"));
- talloc_free(mem_ctx);
- exit(10);
- }
-
-
- /* get the list of nodes */
- ret = ctdb_ctrl_getnodemap(ctdb, CONTROL_TIMEOUT(), CTDB_CURRENT_NODE, mem_ctx, &nodemap);
- if (ret != 0) {
- DEBUG(0,("IPMUX: failed to get the nodemap - exiting\n"));
- talloc_free(mem_ctx);
- exit(10);
- }
-
-
- /* count how many connected nodes we have */
- num_nodes = 0;
- for (i=0; i<nodemap->num; i++) {
- if (nodemap->nodes[i].flags & NODE_FLAGS_DISCONNECTED) {
- continue;
- }
-
- num_nodes++;
- }
- if (num_nodes == 0) {
- DEBUG(0,("IPMUX: no connected nodes - exiting\n"));
- talloc_free(mem_ctx);
- exit(10);
- }
-
- ipmux_nodes = talloc_array(mem_ctx, struct ipmux_node, num_nodes);
- if (ipmux_nodes == NULL) {
- DEBUG(0,("IPMUX: failed to allocate ipmux node array - exiting\n"));
- talloc_free(mem_ctx);
- exit(10);
- }
-
-
- /* populate the ipmux node array */
- num_nodes = 0;
- for (i=0; i<nodemap->num; i++) {
- if (nodemap->nodes[i].flags & NODE_FLAGS_DISCONNECTED) {
- continue;
- }
- ipmux_nodes[num_nodes].pnn = i;
- ipmux_nodes[num_nodes].addr = nodemap->nodes[i].addr;
- num_nodes++;
- }
-
-
- /* open a raw socket to send the packets out through */
- s = ctdb_sys_open_sending_socket();
- if (s == -1) {
- DEBUG(0,("IPMUX: failed to open raw socket - exiting\n"));
- talloc_free(mem_ctx);
- exit(10);
- }
-
-
- /* open the ipq handle */
- ipqh = ipq_create_handle(0, PF_INET);
- if (ipqh == NULL) {
- DEBUG(0,("IPMUX: failed to create ipq handle - exiting\n"));
- talloc_free(mem_ctx);
- exit(10);
- }
-
- ret = ipq_set_mode(ipqh, IPQ_COPY_PACKET, PKTSIZE);
- if (ret < 0) {
- DEBUG(0,("IPMUX: failed to set ipq mode. make sure the ip_queue module is loaded - exiting\n"));
- talloc_free(mem_ctx);
- exit(10);
- }
-
- while (1) {
- /* wait for the next packet */
- ret = ipq_read(ipqh, pktbuf, PKTSIZE, 0);
- if (ret <= 0) {
- continue;
- }
-
- /* read the packet */
- ipqp = ipq_get_packet(pktbuf);
- if (ipqp == NULL) {
- continue;
- }
-
- /* calculate a hash based on the clients ip address */
- ip = (struct iphdr *)&ipqp->payload[0];
- /* ntohl here since the client ip addresses are much more
- likely to differ in the lower bits than the hight bits */
- hash = ntohl(ip->saddr) % num_nodes;
-
-
- /* if the packet is hashed to the current host, then
- just accept it and let the kernel pass it onto
- the local stack
- */
- if (ipmux_nodes[hash].pnn == mypnn) {
- ipq_set_verdict(ipqh, ipqp->packet_id, NF_ACCEPT, 0, pktbuf);
- continue;
- }
-
- /* we have hashed it to one of the other nodes, so
- send the packet off and tell the kernel to not worry
- about this packet any more
- */
- ret = sendto(s, &ipqp->payload[0], ipqp->data_len, 0, (struct sockaddr_in *)&ipmux_nodes[hash].addr, sizeof(ctdb_sock_addr));
- ipq_set_verdict(ipqh, ipqp->packet_id, NF_DROP, 0, pktbuf);
-
- }
-
- return 0;
-}
-
-#else
-int main(void)
-{
- printf("ipmux tool disabled - lacking netfilter and libipq development libs\n");
- return 1;
-}
-#endif