2 Unix SMB/CIFS implementation.
4 Copyright (C) Andrew Tridgell 1994-1998
5 Copyright (C) Jeremy Allison 2007.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
22 #include "libads/sitename_cache.h"
23 #include "../libcli/netlogon.h"
25 /* nmbd.c sets this to True. */
26 bool global_in_nmbd = False;
28 /****************************
29 * SERVER AFFINITY ROUTINES *
30 ****************************/
32 /* Server affinity is the concept of preferring the last domain
33 controller with whom you had a successful conversation */
35 /****************************************************************************
36 ****************************************************************************/
37 #define SAFKEY_FMT "SAF/DOMAIN/%s"
39 #define SAFJOINKEY_FMT "SAFJOIN/DOMAIN/%s"
40 #define SAFJOIN_TTL 3600
42 static char *saf_key(const char *domain)
46 asprintf_strupper_m(&keystr, SAFKEY_FMT, domain);
51 static char *saf_join_key(const char *domain)
55 asprintf_strupper_m(&keystr, SAFJOINKEY_FMT, domain);
60 /****************************************************************************
61 ****************************************************************************/
63 bool saf_store( const char *domain, const char *servername )
69 if ( !domain || !servername ) {
70 DEBUG(2,("saf_store: "
71 "Refusing to store empty domain or servername!\n"));
75 if ( (strlen(domain) == 0) || (strlen(servername) == 0) ) {
76 DEBUG(0,("saf_store: "
77 "refusing to store 0 length domain or servername!\n"));
81 key = saf_key( domain );
82 expire = time( NULL ) + lp_parm_int(-1, "saf","ttl", SAF_TTL);
84 DEBUG(10,("saf_store: domain = [%s], server = [%s], expire = [%u]\n",
85 domain, servername, (unsigned int)expire ));
87 ret = gencache_set( key, servername, expire );
94 bool saf_join_store( const char *domain, const char *servername )
100 if ( !domain || !servername ) {
101 DEBUG(2,("saf_join_store: Refusing to store empty domain or servername!\n"));
105 if ( (strlen(domain) == 0) || (strlen(servername) == 0) ) {
106 DEBUG(0,("saf_join_store: refusing to store 0 length domain or servername!\n"));
110 key = saf_join_key( domain );
111 expire = time( NULL ) + lp_parm_int(-1, "saf","join ttl", SAFJOIN_TTL);
113 DEBUG(10,("saf_join_store: domain = [%s], server = [%s], expire = [%u]\n",
114 domain, servername, (unsigned int)expire ));
116 ret = gencache_set( key, servername, expire );
123 bool saf_delete( const char *domain )
129 DEBUG(2,("saf_delete: Refusing to delete empty domain\n"));
133 key = saf_join_key(domain);
134 ret = gencache_del(key);
138 DEBUG(10,("saf_delete[join]: domain = [%s]\n", domain ));
141 key = saf_key(domain);
142 ret = gencache_del(key);
146 DEBUG(10,("saf_delete: domain = [%s]\n", domain ));
152 /****************************************************************************
153 ****************************************************************************/
155 char *saf_fetch( const char *domain )
162 if ( !domain || strlen(domain) == 0) {
163 DEBUG(2,("saf_fetch: Empty domain name!\n"));
167 key = saf_join_key( domain );
169 ret = gencache_get( key, &server, &timeout );
174 DEBUG(5,("saf_fetch[join]: Returning \"%s\" for \"%s\" domain\n",
179 key = saf_key( domain );
181 ret = gencache_get( key, &server, &timeout );
186 DEBUG(5,("saf_fetch: failed to find server for \"%s\" domain\n",
189 DEBUG(5,("saf_fetch: Returning \"%s\" for \"%s\" domain\n",
196 /****************************************************************************
197 Generate a random trn_id.
198 ****************************************************************************/
200 static int generate_trn_id(void)
204 generate_random_buffer((uint8 *)&id, sizeof(id));
206 return id % (unsigned)0x7FFF;
209 /****************************************************************************
210 Parse a node status response into an array of structures.
211 ****************************************************************************/
213 static NODE_STATUS_STRUCT *parse_node_status(char *p,
215 struct node_status_extra *extra)
217 NODE_STATUS_STRUCT *ret;
220 *num_names = CVAL(p,0);
225 ret = SMB_MALLOC_ARRAY(NODE_STATUS_STRUCT,*num_names);
230 for (i=0;i< *num_names;i++) {
231 StrnCpy(ret[i].name,p,15);
232 trim_char(ret[i].name,'\0',' ');
233 ret[i].type = CVAL(p,15);
234 ret[i].flags = p[16];
236 DEBUG(10, ("%s#%02x: flags = 0x%02x\n", ret[i].name,
237 ret[i].type, ret[i].flags));
240 * Also, pick up the MAC address ...
243 memcpy(&extra->mac_addr, p, 6); /* Fill in the mac addr */
249 /****************************************************************************
250 Do a NBT node status query on an open socket and return an array of
251 structures holding the returned names or NULL if the query failed.
252 **************************************************************************/
254 NODE_STATUS_STRUCT *node_status_query(int fd,
255 struct nmb_name *name,
256 const struct sockaddr_storage *to_ss,
258 struct node_status_extra *extra)
262 int retry_time = 2000;
264 struct packet_struct p;
265 struct packet_struct *p2;
266 struct nmb_packet *nmb = &p.packet.nmb;
267 NODE_STATUS_STRUCT *ret;
271 if (to_ss->ss_family != AF_INET) {
272 /* Can't do node status to IPv6 */
275 nmb->header.name_trn_id = generate_trn_id();
276 nmb->header.opcode = 0;
277 nmb->header.response = false;
278 nmb->header.nm_flags.bcast = false;
279 nmb->header.nm_flags.recursion_available = false;
280 nmb->header.nm_flags.recursion_desired = false;
281 nmb->header.nm_flags.trunc = false;
282 nmb->header.nm_flags.authoritative = false;
283 nmb->header.rcode = 0;
284 nmb->header.qdcount = 1;
285 nmb->header.ancount = 0;
286 nmb->header.nscount = 0;
287 nmb->header.arcount = 0;
288 nmb->question.question_name = *name;
289 nmb->question.question_type = 0x21;
290 nmb->question.question_class = 0x1;
292 p.ip = ((const struct sockaddr_in *)to_ss)->sin_addr;
296 p.timestamp = time(NULL);
297 p.packet_type = NMB_PACKET;
301 if (!send_packet(&p))
307 struct timeval tval2;
308 GetTimeOfDay(&tval2);
309 if (TvalDiff(&tval,&tval2) > retry_time) {
312 if (!found && !send_packet(&p))
318 if ((p2=receive_nmb_packet(fd,90,nmb->header.name_trn_id))) {
319 struct nmb_packet *nmb2 = &p2->packet.nmb;
320 debug_nmb_packet(p2);
322 if (nmb2->header.opcode != 0 ||
323 nmb2->header.nm_flags.bcast ||
324 nmb2->header.rcode ||
325 !nmb2->header.ancount ||
326 nmb2->answers->rr_type != 0x21) {
327 /* XXXX what do we do with this? could be a
328 redirect, but we'll discard it for the
334 ret = parse_node_status(&nmb2->answers->rdata[0],
344 /****************************************************************************
345 Find the first type XX name in a node status reply - used for finding
346 a servers name given its IP. Return the matched name in *name.
347 **************************************************************************/
349 bool name_status_find(const char *q_name,
352 const struct sockaddr_storage *to_ss,
355 char addr[INET6_ADDRSTRLEN];
356 struct sockaddr_storage ss;
357 NODE_STATUS_STRUCT *status = NULL;
358 struct nmb_name nname;
363 if (lp_disable_netbios()) {
364 DEBUG(5,("name_status_find(%s#%02x): netbios is disabled\n",
369 print_sockaddr(addr, sizeof(addr), to_ss);
371 DEBUG(10, ("name_status_find: looking up %s#%02x at %s\n", q_name,
374 /* Check the cache first. */
376 if (namecache_status_fetch(q_name, q_type, type, to_ss, name)) {
380 if (to_ss->ss_family != AF_INET) {
381 /* Can't do node status to IPv6 */
385 if (!interpret_string_addr(&ss, lp_socket_address(),
386 AI_NUMERICHOST|AI_PASSIVE)) {
390 sock = open_socket_in(SOCK_DGRAM, 0, 3, &ss, True);
394 /* W2K PDC's seem not to respond to '*'#0. JRA */
395 make_nmb_name(&nname, q_name, q_type);
396 status = node_status_query(sock, &nname, to_ss, &count, NULL);
401 for (i=0;i<count;i++) {
402 /* Find first one of the requested type that's not a GROUP. */
403 if (status[i].type == type && ! (status[i].flags & 0x80))
409 pull_ascii_nstring(name, sizeof(fstring), status[i].name);
411 /* Store the result in the cache. */
412 /* but don't store an entry for 0x1c names here. Here we have
413 a single host and DOMAIN<0x1c> names should be a list of hosts */
415 if ( q_type != 0x1c ) {
416 namecache_status_store(q_name, q_type, type, to_ss, name);
424 DEBUG(10, ("name_status_find: name %sfound", result ? "" : "not "));
427 DEBUGADD(10, (", name %s ip address is %s", name, addr));
435 comparison function used by sort_addr_list
438 static int addr_compare(const struct sockaddr_storage *ss1,
439 const struct sockaddr_storage *ss2)
441 int max_bits1=0, max_bits2=0;
442 int num_interfaces = iface_count();
445 /* Sort IPv4 addresses first. */
446 if (ss1->ss_family != ss2->ss_family) {
447 if (ss2->ss_family == AF_INET) {
454 /* Here we know both addresses are of the same
457 for (i=0;i<num_interfaces;i++) {
458 const struct sockaddr_storage *pss = iface_n_bcast(i);
459 unsigned char *p_ss1 = NULL;
460 unsigned char *p_ss2 = NULL;
461 unsigned char *p_if = NULL;
465 if (pss->ss_family != ss1->ss_family) {
466 /* Ignore interfaces of the wrong type. */
469 if (pss->ss_family == AF_INET) {
470 p_if = (unsigned char *)
471 &((const struct sockaddr_in *)pss)->sin_addr;
472 p_ss1 = (unsigned char *)
473 &((const struct sockaddr_in *)ss1)->sin_addr;
474 p_ss2 = (unsigned char *)
475 &((const struct sockaddr_in *)ss2)->sin_addr;
478 #if defined(HAVE_IPV6)
479 if (pss->ss_family == AF_INET6) {
480 p_if = (unsigned char *)
481 &((const struct sockaddr_in6 *)pss)->sin6_addr;
482 p_ss1 = (unsigned char *)
483 &((const struct sockaddr_in6 *)ss1)->sin6_addr;
484 p_ss2 = (unsigned char *)
485 &((const struct sockaddr_in6 *)ss2)->sin6_addr;
489 if (!p_ss1 || !p_ss2 || !p_if || len == 0) {
492 bits1 = matching_len_bits(p_ss1, p_if, len);
493 bits2 = matching_len_bits(p_ss2, p_if, len);
494 max_bits1 = MAX(bits1, max_bits1);
495 max_bits2 = MAX(bits2, max_bits2);
498 /* Bias towards directly reachable IPs */
499 if (iface_local((struct sockaddr *)ss1)) {
500 if (ss1->ss_family == AF_INET) {
506 if (iface_local((struct sockaddr *)ss2)) {
507 if (ss2->ss_family == AF_INET) {
513 return max_bits2 - max_bits1;
516 /*******************************************************************
517 compare 2 ldap IPs by nearness to our interfaces - used in qsort
518 *******************************************************************/
520 int ip_service_compare(struct ip_service *ss1, struct ip_service *ss2)
524 if ((result = addr_compare(&ss1->ss, &ss2->ss)) != 0) {
528 if (ss1->port > ss2->port) {
532 if (ss1->port < ss2->port) {
540 sort an IP list so that names that are close to one of our interfaces
541 are at the top. This prevents the problem where a WINS server returns an IP
542 that is not reachable from our subnet as the first match
545 static void sort_addr_list(struct sockaddr_storage *sslist, int count)
551 TYPESAFE_QSORT(sslist, count, addr_compare);
554 static void sort_service_list(struct ip_service *servlist, int count)
560 TYPESAFE_QSORT(servlist, count, ip_service_compare);
563 /**********************************************************************
564 Remove any duplicate address/port pairs in the list
565 *********************************************************************/
567 static int remove_duplicate_addrs2(struct ip_service *iplist, int count )
571 DEBUG(10,("remove_duplicate_addrs2: "
572 "looking for duplicate address/port pairs\n"));
574 /* one loop to remove duplicates */
575 for ( i=0; i<count; i++ ) {
576 if ( is_zero_addr((struct sockaddr *)&iplist[i].ss)) {
580 for ( j=i+1; j<count; j++ ) {
581 if (sockaddr_equal((struct sockaddr *)&iplist[i].ss, (struct sockaddr *)&iplist[j].ss) &&
582 iplist[i].port == iplist[j].port) {
583 zero_sockaddr(&iplist[j].ss);
588 /* one loop to clean up any holes we left */
589 /* first ip should never be a zero_ip() */
590 for (i = 0; i<count; ) {
591 if (is_zero_addr((struct sockaddr *)&iplist[i].ss) ) {
593 memmove(&iplist[i], &iplist[i+1],
594 (count - i - 1)*sizeof(iplist[i]));
605 static bool prioritize_ipv4_list(struct ip_service *iplist, int count)
607 TALLOC_CTX *frame = talloc_stackframe();
608 struct ip_service *iplist_new = TALLOC_ARRAY(frame, struct ip_service, count);
611 if (iplist_new == NULL) {
618 /* Copy IPv4 first. */
619 for (i = 0; i < count; i++) {
620 if (iplist[i].ss.ss_family == AF_INET) {
621 iplist_new[j++] = iplist[i];
626 for (i = 0; i < count; i++) {
627 if (iplist[i].ss.ss_family != AF_INET) {
628 iplist_new[j++] = iplist[i];
632 memcpy(iplist, iplist_new, sizeof(struct ip_service)*count);
637 /****************************************************************************
638 Do a netbios name query to find someones IP.
639 Returns an array of IP addresses or NULL if none.
640 *count will be set to the number of addresses returned.
641 *timed_out is set if we failed by timing out
642 ****************************************************************************/
644 struct sockaddr_storage *name_query(int fd,
649 const struct sockaddr_storage *to_ss,
656 int retry_time = bcast?250:2000;
658 struct packet_struct p;
659 struct packet_struct *p2;
660 struct nmb_packet *nmb = &p.packet.nmb;
661 struct sockaddr_storage *ss_list = NULL;
663 if (lp_disable_netbios()) {
664 DEBUG(5,("name_query(%s#%02x): netbios is disabled\n",
669 if (to_ss->ss_family != AF_INET) {
677 memset((char *)&p,'\0',sizeof(p));
681 nmb->header.name_trn_id = generate_trn_id();
682 nmb->header.opcode = 0;
683 nmb->header.response = false;
684 nmb->header.nm_flags.bcast = bcast;
685 nmb->header.nm_flags.recursion_available = false;
686 nmb->header.nm_flags.recursion_desired = recurse;
687 nmb->header.nm_flags.trunc = false;
688 nmb->header.nm_flags.authoritative = false;
689 nmb->header.rcode = 0;
690 nmb->header.qdcount = 1;
691 nmb->header.ancount = 0;
692 nmb->header.nscount = 0;
693 nmb->header.arcount = 0;
695 make_nmb_name(&nmb->question.question_name,name,name_type);
697 nmb->question.question_type = 0x20;
698 nmb->question.question_class = 0x1;
700 p.ip = ((struct sockaddr_in *)to_ss)->sin_addr;
704 p.timestamp = time(NULL);
705 p.packet_type = NMB_PACKET;
709 if (!send_packet(&p))
715 struct timeval tval2;
717 GetTimeOfDay(&tval2);
718 if (TvalDiff(&tval,&tval2) > retry_time) {
721 if (!found && !send_packet(&p))
727 if ((p2=receive_nmb_packet(fd,90,nmb->header.name_trn_id))) {
728 struct nmb_packet *nmb2 = &p2->packet.nmb;
729 debug_nmb_packet(p2);
731 /* If we get a Negative Name Query Response from a WINS
732 * server, we should report it and give up.
734 if( 0 == nmb2->header.opcode /* A query response */
735 && !(bcast) /* from a WINS server */
736 && nmb2->header.rcode /* Error returned */
739 if( DEBUGLVL( 3 ) ) {
740 /* Only executed if DEBUGLEVEL >= 3 */
741 dbgtext( "Negative name query "
742 "response, rcode 0x%02x: ",
743 nmb2->header.rcode );
744 switch( nmb2->header.rcode ) {
747 "was invalidly formatted.\n" );
750 dbgtext( "Problem with NBNS, "
751 "cannot process name.\n");
754 dbgtext( "The name requested "
755 "does not exist.\n" );
758 dbgtext( "Unsupported request "
762 dbgtext( "Query refused "
766 dbgtext( "Unrecognized error "
775 if (nmb2->header.opcode != 0 ||
776 nmb2->header.nm_flags.bcast ||
777 nmb2->header.rcode ||
778 !nmb2->header.ancount) {
780 * XXXX what do we do with this? Could be a
781 * redirect, but we'll discard it for the
788 ss_list = SMB_REALLOC_ARRAY(ss_list,
789 struct sockaddr_storage,
791 nmb2->answers->rdlength/6);
794 DEBUG(0,("name_query: Realloc failed.\n"));
799 DEBUG(2,("Got a positive name query response "
803 for (i=0;i<nmb2->answers->rdlength/6;i++) {
805 putip((char *)&ip,&nmb2->answers->rdata[2+i*6]);
806 in_addr_to_sockaddr_storage(&ss_list[(*count)],
808 DEBUGADD(2,("%s ",inet_ntoa(ip)));
815 /* We add the flags back ... */
816 if (nmb2->header.response)
817 (*flags) |= NM_FLAGS_RS;
818 if (nmb2->header.nm_flags.authoritative)
819 (*flags) |= NM_FLAGS_AA;
820 if (nmb2->header.nm_flags.trunc)
821 (*flags) |= NM_FLAGS_TC;
822 if (nmb2->header.nm_flags.recursion_desired)
823 (*flags) |= NM_FLAGS_RD;
824 if (nmb2->header.nm_flags.recursion_available)
825 (*flags) |= NM_FLAGS_RA;
826 if (nmb2->header.nm_flags.bcast)
827 (*flags) |= NM_FLAGS_B;
830 * If we're doing a unicast lookup we only
831 * expect one reply. Don't wait the full 2
832 * seconds if we got one. JRA.
839 /* only set timed_out if we didn't fund what we where looking for*/
841 if ( !found && timed_out ) {
845 /* sort the ip list so we choose close servers first if possible */
846 sort_addr_list(ss_list, *count);
851 /********************************************************
852 convert an array if struct sockaddr_storage to struct ip_service
853 return false on failure. Port is set to PORT_NONE;
854 *********************************************************/
856 static bool convert_ss2service(struct ip_service **return_iplist,
857 const struct sockaddr_storage *ss_list,
862 if ( count==0 || !ss_list )
865 /* copy the ip address; port will be PORT_NONE */
866 if ((*return_iplist = SMB_MALLOC_ARRAY(struct ip_service, count)) ==
868 DEBUG(0,("convert_ip2service: malloc failed "
869 "for %d enetries!\n", count ));
873 for ( i=0; i<count; i++ ) {
874 (*return_iplist)[i].ss = ss_list[i];
875 (*return_iplist)[i].port = PORT_NONE;
881 /********************************************************
882 Resolve via "bcast" method.
883 *********************************************************/
885 NTSTATUS name_resolve_bcast(const char *name,
887 struct ip_service **return_iplist,
891 int num_interfaces = iface_count();
892 struct sockaddr_storage *ss_list;
893 struct sockaddr_storage ss;
896 if (lp_disable_netbios()) {
897 DEBUG(5,("name_resolve_bcast(%s#%02x): netbios is disabled\n",
899 return NT_STATUS_INVALID_PARAMETER;
902 *return_iplist = NULL;
906 * "bcast" means do a broadcast lookup on all the local interfaces.
909 DEBUG(3,("name_resolve_bcast: Attempting broadcast lookup "
910 "for name %s<0x%x>\n", name, name_type));
912 if (!interpret_string_addr(&ss, lp_socket_address(),
913 AI_NUMERICHOST|AI_PASSIVE)) {
917 sock = open_socket_in( SOCK_DGRAM, 0, 3, &ss, true );
919 return NT_STATUS_UNSUCCESSFUL;
922 set_socket_options(sock,"SO_BROADCAST");
924 * Lookup the name on all the interfaces, return on
925 * the first successful match.
927 for( i = num_interfaces-1; i >= 0; i--) {
928 const struct sockaddr_storage *pss = iface_n_bcast(i);
931 /* Done this way to fix compiler error on IRIX 5.x */
935 ss_list = name_query(sock, name, name_type, true,
936 true, pss, return_count, &flags, NULL);
942 /* failed - no response */
945 return NT_STATUS_UNSUCCESSFUL;
949 status = NT_STATUS_OK;
950 if (!convert_ss2service(return_iplist, ss_list, *return_count) )
951 status = NT_STATUS_INVALID_PARAMETER;
958 /********************************************************
959 Resolve via "wins" method.
960 *********************************************************/
962 NTSTATUS resolve_wins(const char *name,
964 struct ip_service **return_iplist,
969 struct sockaddr_storage src_ss, *ss_list = NULL;
970 struct in_addr src_ip;
973 if (lp_disable_netbios()) {
974 DEBUG(5,("resolve_wins(%s#%02x): netbios is disabled\n",
976 return NT_STATUS_INVALID_PARAMETER;
979 *return_iplist = NULL;
982 DEBUG(3,("resolve_wins: Attempting wins lookup for name %s<0x%x>\n",
985 if (wins_srv_count() < 1) {
986 DEBUG(3,("resolve_wins: WINS server resolution selected "
987 "and no WINS servers listed.\n"));
988 return NT_STATUS_INVALID_PARAMETER;
991 /* we try a lookup on each of the WINS tags in turn */
992 wins_tags = wins_srv_tags();
995 /* huh? no tags?? give up in disgust */
996 return NT_STATUS_INVALID_PARAMETER;
999 /* the address we will be sending from */
1000 if (!interpret_string_addr(&src_ss, lp_socket_address(),
1001 AI_NUMERICHOST|AI_PASSIVE)) {
1002 zero_sockaddr(&src_ss);
1005 if (src_ss.ss_family != AF_INET) {
1006 char addr[INET6_ADDRSTRLEN];
1007 print_sockaddr(addr, sizeof(addr), &src_ss);
1008 DEBUG(3,("resolve_wins: cannot receive WINS replies "
1009 "on IPv6 address %s\n",
1011 wins_srv_tags_free(wins_tags);
1012 return NT_STATUS_INVALID_PARAMETER;
1015 src_ip = ((struct sockaddr_in *)&src_ss)->sin_addr;
1017 /* in the worst case we will try every wins server with every
1019 for (t=0; wins_tags && wins_tags[t]; t++) {
1020 int srv_count = wins_srv_count_tag(wins_tags[t]);
1021 for (i=0; i<srv_count; i++) {
1022 struct sockaddr_storage wins_ss;
1023 struct in_addr wins_ip;
1027 wins_ip = wins_srv_ip_tag(wins_tags[t], src_ip);
1029 if (global_in_nmbd && ismyip_v4(wins_ip)) {
1030 /* yikes! we'll loop forever */
1034 /* skip any that have been unresponsive lately */
1035 if (wins_srv_is_dead(wins_ip, src_ip)) {
1039 DEBUG(3,("resolve_wins: using WINS server %s "
1041 inet_ntoa(wins_ip), wins_tags[t]));
1043 sock = open_socket_in(SOCK_DGRAM, 0, 3, &src_ss, true);
1048 in_addr_to_sockaddr_storage(&wins_ss, wins_ip);
1049 ss_list = name_query(sock,
1059 /* exit loop if we got a list of addresses */
1067 /* Timed out wating for WINS server to respond.
1069 wins_srv_died(wins_ip, src_ip);
1071 /* The name definately isn't in this
1072 group of WINS servers.
1073 goto the next group */
1079 wins_srv_tags_free(wins_tags);
1080 return NT_STATUS_NO_LOGON_SERVERS;
1084 status = NT_STATUS_OK;
1085 if (!convert_ss2service(return_iplist, ss_list, *return_count))
1086 status = NT_STATUS_INVALID_PARAMETER;
1089 wins_srv_tags_free(wins_tags);
1095 /********************************************************
1096 Resolve via "lmhosts" method.
1097 *********************************************************/
1099 static NTSTATUS resolve_lmhosts(const char *name, int name_type,
1100 struct ip_service **return_iplist,
1104 * "lmhosts" means parse the local lmhosts file.
1106 struct sockaddr_storage *ss_list;
1107 NTSTATUS status = NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
1108 TALLOC_CTX *ctx = NULL;
1110 *return_iplist = NULL;
1113 DEBUG(3,("resolve_lmhosts: "
1114 "Attempting lmhosts lookup for name %s<0x%x>\n",
1117 ctx = talloc_init("resolve_lmhosts");
1119 return NT_STATUS_NO_MEMORY;
1122 status = resolve_lmhosts_file_as_sockaddr(get_dyn_LMHOSTSFILE(),
1127 if (NT_STATUS_IS_OK(status)) {
1128 if (convert_ss2service(return_iplist,
1132 return NT_STATUS_OK;
1135 return NT_STATUS_NO_MEMORY;
1143 /********************************************************
1144 Resolve via "hosts" method.
1145 *********************************************************/
1147 static NTSTATUS resolve_hosts(const char *name, int name_type,
1148 struct ip_service **return_iplist,
1152 * "host" means do a localhost, or dns lookup.
1154 struct addrinfo hints;
1155 struct addrinfo *ailist = NULL;
1156 struct addrinfo *res = NULL;
1160 if ( name_type != 0x20 && name_type != 0x0) {
1161 DEBUG(5, ("resolve_hosts: not appropriate "
1162 "for name type <0x%x>\n",
1164 return NT_STATUS_INVALID_PARAMETER;
1167 *return_iplist = NULL;
1170 DEBUG(3,("resolve_hosts: Attempting host lookup for name %s<0x%x>\n",
1174 /* By default make sure it supports TCP. */
1175 hints.ai_socktype = SOCK_STREAM;
1176 hints.ai_flags = AI_ADDRCONFIG;
1178 #if !defined(HAVE_IPV6)
1179 /* Unless we have IPv6, we really only want IPv4 addresses back. */
1180 hints.ai_family = AF_INET;
1183 ret = getaddrinfo(name,
1188 DEBUG(3,("resolve_hosts: getaddrinfo failed for name %s [%s]\n",
1190 gai_strerror(ret) ));
1193 for (res = ailist; res; res = res->ai_next) {
1194 struct sockaddr_storage ss;
1196 if (!res->ai_addr || res->ai_addrlen == 0) {
1201 memcpy(&ss, res->ai_addr, res->ai_addrlen);
1205 *return_iplist = SMB_REALLOC_ARRAY(*return_iplist,
1208 if (!*return_iplist) {
1209 DEBUG(3,("resolve_hosts: malloc fail !\n"));
1210 freeaddrinfo(ailist);
1211 return NT_STATUS_NO_MEMORY;
1213 (*return_iplist)[i].ss = ss;
1214 (*return_iplist)[i].port = PORT_NONE;
1218 freeaddrinfo(ailist);
1220 if (*return_count) {
1221 return NT_STATUS_OK;
1223 return NT_STATUS_UNSUCCESSFUL;
1226 /********************************************************
1227 Resolve via "ADS" method.
1228 *********************************************************/
1230 static NTSTATUS resolve_ads(const char *name,
1232 const char *sitename,
1233 struct ip_service **return_iplist,
1239 struct dns_rr_srv *dcs = NULL;
1243 if ((name_type != 0x1c) && (name_type != KDC_NAME_TYPE) &&
1244 (name_type != 0x1b)) {
1245 return NT_STATUS_INVALID_PARAMETER;
1248 if ( (ctx = talloc_init("resolve_ads")) == NULL ) {
1249 DEBUG(0,("resolve_ads: talloc_init() failed!\n"));
1250 return NT_STATUS_NO_MEMORY;
1253 /* The DNS code needs fixing to find IPv6 addresses... JRA. */
1255 switch (name_type) {
1257 DEBUG(5,("resolve_ads: Attempting to resolve "
1258 "PDC for %s using DNS\n", name));
1259 status = ads_dns_query_pdc(ctx, name, &dcs, &numdcs);
1263 DEBUG(5,("resolve_ads: Attempting to resolve "
1264 "DCs for %s using DNS\n", name));
1265 status = ads_dns_query_dcs(ctx, name, sitename, &dcs,
1269 DEBUG(5,("resolve_ads: Attempting to resolve "
1270 "KDCs for %s using DNS\n", name));
1271 status = ads_dns_query_kdcs(ctx, name, sitename, &dcs,
1275 status = NT_STATUS_INVALID_PARAMETER;
1279 if ( !NT_STATUS_IS_OK( status ) ) {
1280 talloc_destroy(ctx);
1284 for (i=0;i<numdcs;i++) {
1285 numaddrs += MAX(dcs[i].num_ips,1);
1288 if ((*return_iplist = SMB_MALLOC_ARRAY(struct ip_service, numaddrs)) ==
1290 DEBUG(0,("resolve_ads: malloc failed for %d entries\n",
1292 talloc_destroy(ctx);
1293 return NT_STATUS_NO_MEMORY;
1296 /* now unroll the list of IP addresses */
1301 while ( i < numdcs && (*return_count<numaddrs) ) {
1302 struct ip_service *r = &(*return_iplist)[*return_count];
1304 r->port = dcs[i].port;
1306 /* If we don't have an IP list for a name, lookup it up */
1309 interpret_string_addr(&r->ss, dcs[i].hostname, 0);
1313 /* use the IP addresses from the SRV sresponse */
1315 if ( j >= dcs[i].num_ips ) {
1321 r->ss = dcs[i].ss_s[j];
1325 /* make sure it is a valid IP. I considered checking the
1326 * negative connection cache, but this is the wrong place
1327 * for it. Maybe only as a hack. After think about it, if
1328 * all of the IP addresses returned from DNS are dead, what
1329 * hope does a netbios name lookup have ? The standard reason
1330 * for falling back to netbios lookups is that our DNS server
1331 * doesn't know anything about the DC's -- jerry */
1333 if (!is_zero_addr((struct sockaddr *)&r->ss)) {
1338 talloc_destroy(ctx);
1339 return NT_STATUS_OK;
1342 /*******************************************************************
1343 Internal interface to resolve a name into an IP address.
1344 Use this function if the string is either an IP address, DNS
1345 or host name or NetBIOS name. This uses the name switch in the
1346 smb.conf to determine the order of name resolution.
1348 Added support for ip addr/port to support ADS ldap servers.
1349 the only place we currently care about the port is in the
1350 resolve_hosts() when looking up DC's via SRV RR entries in DNS
1351 **********************************************************************/
1353 NTSTATUS internal_resolve_name(const char *name,
1355 const char *sitename,
1356 struct ip_service **return_iplist,
1358 const char *resolve_order)
1362 NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
1364 TALLOC_CTX *frame = NULL;
1366 *return_iplist = NULL;
1369 DEBUG(10, ("internal_resolve_name: looking up %s#%x (sitename %s)\n",
1370 name, name_type, sitename ? sitename : "(null)"));
1372 if (is_ipaddress(name)) {
1373 if ((*return_iplist = SMB_MALLOC_P(struct ip_service)) ==
1375 DEBUG(0,("internal_resolve_name: malloc fail !\n"));
1376 return NT_STATUS_NO_MEMORY;
1379 /* ignore the port here */
1380 (*return_iplist)->port = PORT_NONE;
1382 /* if it's in the form of an IP address then get the lib to interpret it */
1383 if (!interpret_string_addr(&(*return_iplist)->ss,
1384 name, AI_NUMERICHOST)) {
1385 DEBUG(1,("internal_resolve_name: interpret_string_addr "
1388 SAFE_FREE(*return_iplist);
1389 return NT_STATUS_INVALID_PARAMETER;
1392 return NT_STATUS_OK;
1395 /* Check name cache */
1397 if (namecache_fetch(name, name_type, return_iplist, return_count)) {
1398 /* This could be a negative response */
1399 if (*return_count > 0) {
1400 return NT_STATUS_OK;
1402 return NT_STATUS_UNSUCCESSFUL;
1406 /* set the name resolution order */
1408 if (strcmp( resolve_order, "NULL") == 0) {
1409 DEBUG(8,("internal_resolve_name: all lookups disabled\n"));
1410 return NT_STATUS_INVALID_PARAMETER;
1413 if (!resolve_order[0]) {
1416 ptr = resolve_order;
1419 /* iterate through the name resolution backends */
1421 frame = talloc_stackframe();
1422 while (next_token_talloc(frame, &ptr, &tok, LIST_SEP)) {
1423 if((strequal(tok, "host") || strequal(tok, "hosts"))) {
1424 status = resolve_hosts(name, name_type, return_iplist,
1426 if (NT_STATUS_IS_OK(status)) {
1429 } else if(strequal( tok, "kdc")) {
1430 /* deal with KDC_NAME_TYPE names here.
1431 * This will result in a SRV record lookup */
1432 status = resolve_ads(name, KDC_NAME_TYPE, sitename,
1433 return_iplist, return_count);
1434 if (NT_STATUS_IS_OK(status)) {
1435 /* Ensure we don't namecache
1436 * this with the KDC port. */
1437 name_type = KDC_NAME_TYPE;
1440 } else if(strequal( tok, "ads")) {
1441 /* deal with 0x1c and 0x1b names here.
1442 * This will result in a SRV record lookup */
1443 status = resolve_ads(name, name_type, sitename,
1444 return_iplist, return_count);
1445 if (NT_STATUS_IS_OK(status)) {
1448 } else if(strequal( tok, "lmhosts")) {
1449 status = resolve_lmhosts(name, name_type,
1450 return_iplist, return_count);
1451 if (NT_STATUS_IS_OK(status)) {
1454 } else if(strequal( tok, "wins")) {
1455 /* don't resolve 1D via WINS */
1456 if (name_type != 0x1D) {
1457 status = resolve_wins(name, name_type,
1460 if (NT_STATUS_IS_OK(status)) {
1464 } else if(strequal( tok, "bcast")) {
1465 status = name_resolve_bcast(name, name_type,
1468 if (NT_STATUS_IS_OK(status)) {
1472 DEBUG(0,("resolve_name: unknown name switch type %s\n",
1477 /* All of the resolve_* functions above have returned false. */
1480 SAFE_FREE(*return_iplist);
1483 return NT_STATUS_UNSUCCESSFUL;
1487 /* Remove duplicate entries. Some queries, notably #1c (domain
1488 controllers) return the PDC in iplist[0] and then all domain
1489 controllers including the PDC in iplist[1..n]. Iterating over
1490 the iplist when the PDC is down will cause two sets of timeouts. */
1492 if ( *return_count ) {
1493 *return_count = remove_duplicate_addrs2(*return_iplist,
1497 /* Save in name cache */
1498 if ( DEBUGLEVEL >= 100 ) {
1499 for (i = 0; i < *return_count && DEBUGLEVEL == 100; i++) {
1500 char addr[INET6_ADDRSTRLEN];
1501 print_sockaddr(addr, sizeof(addr),
1502 &(*return_iplist)[i].ss);
1503 DEBUG(100, ("Storing name %s of type %d (%s:%d)\n",
1507 (*return_iplist)[i].port));
1511 namecache_store(name, name_type, *return_count, *return_iplist);
1513 /* Display some debugging info */
1515 if ( DEBUGLEVEL >= 10 ) {
1516 DEBUG(10, ("internal_resolve_name: returning %d addresses: ",
1519 for (i = 0; i < *return_count; i++) {
1520 char addr[INET6_ADDRSTRLEN];
1521 print_sockaddr(addr, sizeof(addr),
1522 &(*return_iplist)[i].ss);
1523 DEBUGADD(10, ("%s:%d ",
1525 (*return_iplist)[i].port));
1534 /********************************************************
1535 Internal interface to resolve a name into one IP address.
1536 Use this function if the string is either an IP address, DNS
1537 or host name or NetBIOS name. This uses the name switch in the
1538 smb.conf to determine the order of name resolution.
1539 *********************************************************/
1541 bool resolve_name(const char *name,
1542 struct sockaddr_storage *return_ss,
1546 struct ip_service *ss_list = NULL;
1547 char *sitename = NULL;
1550 if (is_ipaddress(name)) {
1551 return interpret_string_addr(return_ss, name, AI_NUMERICHOST);
1554 sitename = sitename_fetch(lp_realm()); /* wild guess */
1556 if (NT_STATUS_IS_OK(internal_resolve_name(name, name_type, sitename,
1558 lp_name_resolve_order()))) {
1562 for (i=0; i<count; i++) {
1563 if (!is_zero_addr((struct sockaddr *)&ss_list[i].ss) &&
1564 !is_broadcast_addr((struct sockaddr *)&ss_list[i].ss) &&
1565 (ss_list[i].ss.ss_family == AF_INET)) {
1566 *return_ss = ss_list[i].ss;
1568 SAFE_FREE(sitename);
1574 /* only return valid addresses for TCP connections */
1575 for (i=0; i<count; i++) {
1576 if (!is_zero_addr((struct sockaddr *)&ss_list[i].ss) &&
1577 !is_broadcast_addr((struct sockaddr *)&ss_list[i].ss)) {
1578 *return_ss = ss_list[i].ss;
1580 SAFE_FREE(sitename);
1587 SAFE_FREE(sitename);
1591 /********************************************************
1592 Internal interface to resolve a name into a list of IP addresses.
1593 Use this function if the string is either an IP address, DNS
1594 or host name or NetBIOS name. This uses the name switch in the
1595 smb.conf to determine the order of name resolution.
1596 *********************************************************/
1598 NTSTATUS resolve_name_list(TALLOC_CTX *ctx,
1601 struct sockaddr_storage **return_ss_arr,
1602 unsigned int *p_num_entries)
1604 struct ip_service *ss_list = NULL;
1605 char *sitename = NULL;
1608 unsigned int num_entries;
1612 *return_ss_arr = NULL;
1614 if (is_ipaddress(name)) {
1615 *return_ss_arr = TALLOC_P(ctx, struct sockaddr_storage);
1616 if (!*return_ss_arr) {
1617 return NT_STATUS_NO_MEMORY;
1619 if (!interpret_string_addr(*return_ss_arr, name, AI_NUMERICHOST)) {
1620 TALLOC_FREE(*return_ss_arr);
1621 return NT_STATUS_BAD_NETWORK_NAME;
1624 return NT_STATUS_OK;
1627 sitename = sitename_fetch(lp_realm()); /* wild guess */
1629 status = internal_resolve_name(name, name_type, sitename,
1631 lp_name_resolve_order());
1632 SAFE_FREE(sitename);
1634 if (!NT_STATUS_IS_OK(status)) {
1638 /* only return valid addresses for TCP connections */
1639 for (i=0, num_entries = 0; i<count; i++) {
1640 if (!is_zero_addr((struct sockaddr *)&ss_list[i].ss) &&
1641 !is_broadcast_addr((struct sockaddr *)&ss_list[i].ss)) {
1645 if (num_entries == 0) {
1647 return NT_STATUS_BAD_NETWORK_NAME;
1650 *return_ss_arr = TALLOC_ARRAY(ctx,
1651 struct sockaddr_storage,
1653 if (!(*return_ss_arr)) {
1655 return NT_STATUS_NO_MEMORY;
1658 for (i=0, num_entries = 0; i<count; i++) {
1659 if (!is_zero_addr((struct sockaddr *)&ss_list[i].ss) &&
1660 !is_broadcast_addr((struct sockaddr *)&ss_list[i].ss)) {
1661 (*return_ss_arr)[num_entries++] = ss_list[i].ss;
1665 status = NT_STATUS_OK;
1666 *p_num_entries = num_entries;
1669 return NT_STATUS_OK;
1672 /********************************************************
1673 Find the IP address of the master browser or DMB for a workgroup.
1674 *********************************************************/
1676 bool find_master_ip(const char *group, struct sockaddr_storage *master_ss)
1678 struct ip_service *ip_list = NULL;
1682 if (lp_disable_netbios()) {
1683 DEBUG(5,("find_master_ip(%s): netbios is disabled\n", group));
1687 status = internal_resolve_name(group, 0x1D, NULL, &ip_list, &count,
1688 lp_name_resolve_order());
1689 if (NT_STATUS_IS_OK(status)) {
1690 *master_ss = ip_list[0].ss;
1695 status = internal_resolve_name(group, 0x1B, NULL, &ip_list, &count,
1696 lp_name_resolve_order());
1697 if (NT_STATUS_IS_OK(status)) {
1698 *master_ss = ip_list[0].ss;
1707 /********************************************************
1708 Get the IP address list of the primary domain controller
1710 *********************************************************/
1712 bool get_pdc_ip(const char *domain, struct sockaddr_storage *pss)
1714 struct ip_service *ip_list = NULL;
1716 NTSTATUS status = NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
1718 /* Look up #1B name */
1720 if (lp_security() == SEC_ADS) {
1721 status = internal_resolve_name(domain, 0x1b, NULL, &ip_list,
1725 if (!NT_STATUS_IS_OK(status) || count == 0) {
1726 status = internal_resolve_name(domain, 0x1b, NULL, &ip_list,
1728 lp_name_resolve_order());
1729 if (!NT_STATUS_IS_OK(status)) {
1734 /* if we get more than 1 IP back we have to assume it is a
1735 multi-homed PDC and not a mess up */
1738 DEBUG(6,("get_pdc_ip: PDC has %d IP addresses!\n", count));
1739 sort_service_list(ip_list, count);
1742 *pss = ip_list[0].ss;
1747 /* Private enum type for lookups. */
1749 enum dc_lookup_type { DC_NORMAL_LOOKUP, DC_ADS_ONLY, DC_KDC_ONLY };
1751 /********************************************************
1752 Get the IP address list of the domain controllers for
1754 *********************************************************/
1756 static NTSTATUS get_dc_list(const char *domain,
1757 const char *sitename,
1758 struct ip_service **ip_list,
1760 enum dc_lookup_type lookup_type,
1763 char *resolve_order = NULL;
1764 char *saf_servername = NULL;
1765 char *pserver = NULL;
1767 char *port_str = NULL;
1770 int num_addresses = 0;
1771 int local_count, i, j;
1772 struct ip_service *return_iplist = NULL;
1773 struct ip_service *auto_ip_list = NULL;
1774 bool done_auto_lookup = false;
1777 TALLOC_CTX *ctx = talloc_init("get_dc_list");
1783 return NT_STATUS_NO_MEMORY;
1788 /* if we are restricted to solely using DNS for looking
1789 up a domain controller, make sure that host lookups
1790 are enabled for the 'name resolve order'. If host lookups
1791 are disabled and ads_only is True, then set the string to
1794 resolve_order = talloc_strdup(ctx, lp_name_resolve_order());
1795 if (!resolve_order) {
1796 status = NT_STATUS_NO_MEMORY;
1799 strlower_m(resolve_order);
1800 if (lookup_type == DC_ADS_ONLY) {
1801 if (strstr( resolve_order, "host")) {
1802 resolve_order = talloc_strdup(ctx, "ads");
1804 /* DNS SRV lookups used by the ads resolver
1805 are already sorted by priority and weight */
1808 resolve_order = talloc_strdup(ctx, "NULL");
1810 } else if (lookup_type == DC_KDC_ONLY) {
1811 /* DNS SRV lookups used by the ads/kdc resolver
1812 are already sorted by priority and weight */
1814 resolve_order = talloc_strdup(ctx, "kdc");
1816 if (!resolve_order) {
1817 status = NT_STATUS_NO_MEMORY;
1821 /* fetch the server we have affinity for. Add the
1822 'password server' list to a search for our domain controllers */
1824 saf_servername = saf_fetch( domain);
1826 if (strequal(domain, lp_workgroup()) || strequal(domain, lp_realm())) {
1827 pserver = talloc_asprintf(NULL, "%s, %s",
1828 saf_servername ? saf_servername : "",
1829 lp_passwordserver());
1831 pserver = talloc_asprintf(NULL, "%s, *",
1832 saf_servername ? saf_servername : "");
1835 SAFE_FREE(saf_servername);
1837 status = NT_STATUS_NO_MEMORY;
1841 /* if we are starting from scratch, just lookup DOMAIN<0x1c> */
1844 DEBUG(10,("get_dc_list: no preferred domain controllers.\n"));
1845 status = internal_resolve_name(domain, 0x1C, sitename, ip_list,
1846 count, resolve_order);
1850 DEBUG(3,("get_dc_list: preferred server list: \"%s\"\n", pserver ));
1853 * if '*' appears in the "password server" list then add
1854 * an auto lookup to the list of manually configured
1855 * DC's. If any DC is listed by name, then the list should be
1856 * considered to be ordered
1860 while (next_token_talloc(ctx, &p, &name, LIST_SEP)) {
1861 if (!done_auto_lookup && strequal(name, "*")) {
1862 status = internal_resolve_name(domain, 0x1C, sitename,
1866 if (NT_STATUS_IS_OK(status)) {
1867 num_addresses += auto_count;
1869 done_auto_lookup = true;
1870 DEBUG(8,("Adding %d DC's from auto lookup\n",
1877 /* if we have no addresses and haven't done the auto lookup, then
1878 just return the list of DC's. Or maybe we just failed. */
1880 if ((num_addresses == 0)) {
1881 if (done_auto_lookup) {
1882 DEBUG(4,("get_dc_list: no servers found\n"));
1883 status = NT_STATUS_NO_LOGON_SERVERS;
1886 status = internal_resolve_name(domain, 0x1C, sitename, ip_list,
1887 count, resolve_order);
1891 if ((return_iplist = SMB_MALLOC_ARRAY(struct ip_service,
1892 num_addresses)) == NULL) {
1893 DEBUG(3,("get_dc_list: malloc fail !\n"));
1894 status = NT_STATUS_NO_MEMORY;
1901 /* fill in the return list now with real IP's */
1903 while ((local_count<num_addresses) &&
1904 next_token_talloc(ctx, &p, &name, LIST_SEP)) {
1905 struct sockaddr_storage name_ss;
1907 /* copy any addersses from the auto lookup */
1909 if (strequal(name, "*")) {
1910 for (j=0; j<auto_count; j++) {
1911 char addr[INET6_ADDRSTRLEN];
1912 print_sockaddr(addr,
1914 &auto_ip_list[j].ss);
1915 /* Check for and don't copy any
1916 * known bad DC IP's. */
1917 if(!NT_STATUS_IS_OK(check_negative_conn_cache(
1920 DEBUG(5,("get_dc_list: "
1921 "negative entry %s removed "
1926 return_iplist[local_count].ss =
1928 return_iplist[local_count].port =
1929 auto_ip_list[j].port;
1935 /* added support for address:port syntax for ads
1936 * (not that I think anyone will ever run the LDAP
1937 * server in an AD domain on something other than
1940 port = (lp_security() == SEC_ADS) ? LDAP_PORT : PORT_NONE;
1941 if ((port_str=strchr(name, ':')) != NULL) {
1944 port = atoi(port_str);
1947 /* explicit lookup; resolve_name() will
1948 * handle names & IP addresses */
1949 if (resolve_name( name, &name_ss, 0x20, true )) {
1950 char addr[INET6_ADDRSTRLEN];
1951 print_sockaddr(addr,
1955 /* Check for and don't copy any known bad DC IP's. */
1956 if( !NT_STATUS_IS_OK(check_negative_conn_cache(domain,
1958 DEBUG(5,("get_dc_list: negative entry %s "
1959 "removed from DC list\n",
1964 return_iplist[local_count].ss = name_ss;
1965 return_iplist[local_count].port = port;
1971 /* need to remove duplicates in the list if we have any
1972 explicit password servers */
1975 local_count = remove_duplicate_addrs2(return_iplist,
1979 /* For DC's we always prioritize IPv4 due to W2K3 not
1980 * supporting LDAP, KRB5 or CLDAP over IPv6. */
1982 if (local_count && return_iplist) {
1983 prioritize_ipv4_list(return_iplist, local_count);
1986 if ( DEBUGLEVEL >= 4 ) {
1987 DEBUG(4,("get_dc_list: returning %d ip addresses "
1988 "in an %sordered list\n",
1990 *ordered ? "":"un"));
1991 DEBUG(4,("get_dc_list: "));
1992 for ( i=0; i<local_count; i++ ) {
1993 char addr[INET6_ADDRSTRLEN];
1994 print_sockaddr(addr,
1996 &return_iplist[i].ss);
1997 DEBUGADD(4,("%s:%d ", addr, return_iplist[i].port ));
2002 *ip_list = return_iplist;
2003 *count = local_count;
2005 status = ( *count != 0 ? NT_STATUS_OK : NT_STATUS_NO_LOGON_SERVERS );
2009 if (!NT_STATUS_IS_OK(status)) {
2010 SAFE_FREE(return_iplist);
2015 SAFE_FREE(auto_ip_list);
2020 /*********************************************************************
2021 Small wrapper function to get the DC list and sort it if neccessary.
2022 *********************************************************************/
2024 NTSTATUS get_sorted_dc_list( const char *domain,
2025 const char *sitename,
2026 struct ip_service **ip_list,
2030 bool ordered = false;
2032 enum dc_lookup_type lookup_type = DC_NORMAL_LOOKUP;
2037 DEBUG(8,("get_sorted_dc_list: attempting lookup "
2038 "for name %s (sitename %s) using [%s]\n",
2040 sitename ? sitename : "NULL",
2041 (ads_only ? "ads" : lp_name_resolve_order())));
2044 lookup_type = DC_ADS_ONLY;
2047 status = get_dc_list(domain, sitename, ip_list,
2048 count, lookup_type, &ordered);
2049 if (NT_STATUS_EQUAL(status, NT_STATUS_NO_LOGON_SERVERS)
2051 DEBUG(3,("get_sorted_dc_list: no server for name %s available"
2052 " in site %s, fallback to all servers\n",
2054 status = get_dc_list(domain, NULL, ip_list,
2055 count, lookup_type, &ordered);
2058 if (!NT_STATUS_IS_OK(status)) {
2059 SAFE_FREE(*ip_list);
2064 /* only sort if we don't already have an ordered list */
2066 sort_service_list(*ip_list, *count);
2069 return NT_STATUS_OK;
2072 /*********************************************************************
2073 Get the KDC list - re-use all the logic in get_dc_list.
2074 *********************************************************************/
2076 NTSTATUS get_kdc_list( const char *realm,
2077 const char *sitename,
2078 struct ip_service **ip_list,
2087 status = get_dc_list(realm, sitename, ip_list,
2088 count, DC_KDC_ONLY, &ordered);
2090 if (!NT_STATUS_IS_OK(status)) {
2091 SAFE_FREE(*ip_list);
2096 /* only sort if we don't already have an ordered list */
2098 sort_service_list(*ip_list, *count);
2101 return NT_STATUS_OK;