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Diffstat (limited to 'source/pipeutil.c')
| -rw-r--r-- | source/pipeutil.c | 235 |
1 files changed, 235 insertions, 0 deletions
diff --git a/source/pipeutil.c b/source/pipeutil.c new file mode 100644 index 00000000000..dff03744330 --- /dev/null +++ b/source/pipeutil.c @@ -0,0 +1,235 @@ + +/* + Unix SMB/Netbios implementation. + Version 1.9. + Pipe SMB utility routines + Copyright (C) Andrew Tridgell 1992-1997, + Copyright (C) Luke Kenneth Casson Leighton 1996-1997. + Copyright (C) Paul Ashton 1997. + + 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 2 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, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ +/* + This file handles reply_ calls on named pipes that the server + makes to handle specific protocols +*/ + + +#include "includes.h" +#include "trans2.h" + +extern int DEBUGLEVEL; + +/* this function is due to be replaced */ +void initrpcreply(char *inbuf, char *q) +{ + uint32 callid; + + SCVAL(q, 0, 5); q++; /* RPC version 5 */ + SCVAL(q, 0, 0); q++; /* minor version 0 */ + SCVAL(q, 0, 2); q++; /* RPC response packet */ + SCVAL(q, 0, 3); q++; /* first frag + last frag */ + RSIVAL(q, 0, 0x10000000); q += 4; /* packed data representation */ + RSSVAL(q, 0, 0); q += 2; /* fragment length, fill in later */ + SSVAL(q, 0, 0); q += 2; /* authentication length */ + callid = RIVAL(inbuf, 12); + RSIVAL(q, 0, callid); q += 4; /* call identifier - match incoming RPC */ + SIVAL(q, 0, 0x18); q += 4; /* allocation hint (no idea) */ + SSVAL(q, 0, 0); q += 2; /* presentation context identifier */ + SCVAL(q, 0, 0); q++; /* cancel count */ + SCVAL(q, 0, 0); q++; /* reserved */ +} + +/* this function is due to be replaced */ +void endrpcreply(char *inbuf, char *q, int datalen, int rtnval, int *rlen) +{ + SSVAL(q, 8, datalen + 4); + SIVAL(q,0x10,datalen+4-0x18); /* allocation hint */ + SIVAL(q, datalen, rtnval); + *rlen = datalen + 4; + { int fd; fd = open("/tmp/rpc", O_RDWR); write(fd, q, datalen + 4); } +} + +/* Group and User RID username mapping function */ +BOOL name_to_rid(char *user_name, uint32 *u_rid, uint32 *g_rid) +{ + struct passwd *pw = Get_Pwnam(user_name, False); + + if (u_rid == NULL || g_rid == NULL || user_name == NULL) + { + return False; + } + + if (!pw) + { + DEBUG(1,("Username %s is invalid on this system\n", user_name)); + return False; + } + + if (user_in_list(user_name, lp_domain_guest_users())) + { + *u_rid = DOMAIN_USER_RID_GUEST; + } + else if (user_in_list(user_name, lp_domain_admin_users())) + { + *u_rid = DOMAIN_USER_RID_ADMIN; + } + else + { + /* turn the unix UID into a Domain RID. this is what the posix + sub-system does (adds 1000 to the uid) */ + *u_rid = (uint32)(pw->pw_uid + 1000); + } + + /* absolutely no idea what to do about the unix GID to Domain RID mapping */ + *g_rid = (uint32)(pw->pw_gid + 1000); + + return True; +} + + +/* BIG NOTE: this function only does SIDS where the identauth is not >= 2^32 */ +char *dom_sid_to_string(DOM_SID *sid) +{ + static pstring sidstr; + char subauth[16]; + int i; + uint32 ia = (sid->id_auth[0]) + + (sid->id_auth[1] << 8 ) + + (sid->id_auth[2] << 16) + + (sid->id_auth[3] << 24); + + sprintf(sidstr, "S-%d-%d", sid->sid_rev_num, ia); + + for (i = 0; i < sid->num_auths; i++) + { + sprintf(subauth, "-%d", sid->sub_auths[i]); + strcat(sidstr, subauth); + } + + DEBUG(5,("dom_sid_to_string returning %s\n", sidstr)); + return sidstr; +} + +int make_dom_sids(char *sids_str, DOM_SID *sids, int max_sids) +{ + char *ptr; + pstring s2; + int count; + + DEBUG(4,("make_dom_sids: %s\n", sids_str)); + + if (sids_str == NULL || *sids_str == 0) return 0; + + for (count = 0, ptr = sids_str; next_token(&ptr, s2, NULL) && count < max_sids; count++) + { + make_dom_sid(&sids[count], s2); + } + + return count; +} + +/* array lookup of well-known RID aliases. the purpose of these escapes me.. */ +/* XXXX this structure should not have the well-known RID groups added to it, + i.e the DOMAIN_GROUP_RID_ADMIN/USER/GUEST. */ +static struct +{ + uint32 rid; + char *rid_name; + +} rid_lookups[] = +{ + { DOMAIN_ALIAS_RID_ADMINS , "admins" }, + { DOMAIN_ALIAS_RID_USERS , "users" }, + { DOMAIN_ALIAS_RID_GUESTS , "guests" }, + { DOMAIN_ALIAS_RID_POWER_USERS , "power_users" }, + + { DOMAIN_ALIAS_RID_ACCOUNT_OPS , "account_ops" }, + { DOMAIN_ALIAS_RID_SYSTEM_OPS , "system_ops" }, + { DOMAIN_ALIAS_RID_PRINT_OPS , "print_ops" }, + { DOMAIN_ALIAS_RID_BACKUP_OPS , "backup_ops" }, + { DOMAIN_ALIAS_RID_REPLICATOR , "replicator" }, + { 0 , NULL } +}; + +int make_dom_gids(char *gids_str, DOM_GID *gids) +{ + char *ptr; + pstring s2; + int count; + + DEBUG(4,("make_dom_gids: %s\n", gids_str)); + + if (gids_str == NULL || *gids_str == 0) return 0; + + for (count = 0, ptr = gids_str; next_token(&ptr, s2, NULL) && count < LSA_MAX_GROUPS; count++) + { + /* the entries are of the form GID/ATTR, ATTR being optional.*/ + char *attr; + uint32 rid = 0; + int i; + + attr = strchr(s2,'/'); + if (attr) *attr++ = 0; + if (!attr || !*attr) attr = "7"; /* default value for attribute is 7 */ + + /* look up the RID string and see if we can turn it into a rid number */ + for (i = 0; rid_lookups[i].rid_name != NULL; i++) + { + if (strequal(rid_lookups[i].rid_name, s2)) + { + rid = rid_lookups[i].rid; + break; + } + } + + if (rid == 0) rid = atoi(s2); + + if (rid == 0) + { + DEBUG(1,("make_dom_gids: unknown well-known alias RID %s/%s\n", + s2, attr)); + count--; + } + else + { + gids[count].g_rid = rid; + gids[count].attr = atoi(attr); + + DEBUG(5,("group id: %d attr: %d\n", + gids[count].g_rid, + gids[count].attr)); + } + } + + return count; +} + +int create_rpc_request(uint32 call_id, uint8 op_num, char *q, int data_len) +{ + RPC_HDR hdr; + + make_rpc_header(&hdr, RPC_REQUEST, call_id, data_len, op_num); + return smb_io_rpc_hdr(False, &hdr, q, q, 4, 0) - q; +} + +int create_rpc_reply(uint32 call_id, char *q, int data_len) +{ + RPC_HDR hdr; + + make_rpc_header(&hdr, RPC_RESPONSE, call_id, data_len, 0); + return smb_io_rpc_hdr(False, &hdr, q, q, 4, 0) - q; +} + |