2 Unix SMB/CIFS implementation.
6 Copyright (C) Tim Potter 2000
7 Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2003
8 Copyright (C) Gerald Carter 2003
9 Copyright (C) Simo Sorce 2003-2007
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 3 of the License, or
14 (at your option) any later version.
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program. If not, see <http://www.gnu.org/licenses/>.
29 #define DBGC_CLASS DBGC_IDMAP
36 static char *idmap_fetch_secret(const char *backend, bool alloc,
37 const char *domain, const char *identity)
43 r = asprintf(&tmp, "IDMAP_ALLOC_%s", backend);
45 r = asprintf(&tmp, "IDMAP_%s_%s", backend, domain);
51 strupper_m(tmp); /* make sure the key is case insensitive */
52 ret = secrets_fetch_generic(tmp, identity);
59 struct idmap_ldap_context {
60 struct smbldap_state *smbldap_state;
64 uint32_t filter_low_id, filter_high_id; /* Filter range */
68 struct idmap_ldap_alloc_context {
69 struct smbldap_state *smbldap_state;
73 uid_t low_uid, high_uid; /* Range of uids */
74 gid_t low_gid, high_gid; /* Range of gids */
78 #define CHECK_ALLOC_DONE(mem) do { \
80 DEBUG(0, ("Out of memory!\n")); \
81 ret = NT_STATUS_NO_MEMORY; \
85 /**********************************************************************
86 IDMAP ALLOC TDB BACKEND
87 **********************************************************************/
89 static struct idmap_ldap_alloc_context *idmap_alloc_ldap;
91 /*********************************************************************
92 ********************************************************************/
94 static NTSTATUS get_credentials( TALLOC_CTX *mem_ctx,
95 struct smbldap_state *ldap_state,
96 const char *config_option,
97 struct idmap_domain *dom,
100 NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
102 const char *tmp = NULL;
103 char *user_dn = NULL;
106 /* assume anonymous if we don't have a specified user */
108 tmp = lp_parm_const_string(-1, config_option, "ldap_user_dn", NULL);
112 /* only the alloc backend can pass in a NULL dom */
113 secret = idmap_fetch_secret("ldap", True,
116 secret = idmap_fetch_secret("ldap", False,
121 DEBUG(0, ("get_credentials: Unable to fetch "
122 "auth credentials for %s in %s\n",
123 tmp, (dom==NULL)?"ALLOC":dom->name));
124 ret = NT_STATUS_ACCESS_DENIED;
127 *dn = talloc_strdup(mem_ctx, tmp);
128 CHECK_ALLOC_DONE(*dn);
130 if (!fetch_ldap_pw(&user_dn, &secret)) {
131 DEBUG(2, ("get_credentials: Failed to lookup ldap "
132 "bind creds. Using anonymous connection.\n"));
136 *dn = talloc_strdup(mem_ctx, user_dn);
137 SAFE_FREE( user_dn );
138 CHECK_ALLOC_DONE(*dn);
142 smbldap_set_creds(ldap_state, anon, *dn, secret);
152 /**********************************************************************
153 Verify the sambaUnixIdPool entry in the directory.
154 **********************************************************************/
156 static NTSTATUS verify_idpool(void)
160 LDAPMessage *result = NULL;
161 LDAPMod **mods = NULL;
162 const char **attr_list;
167 if ( ! idmap_alloc_ldap) {
168 return NT_STATUS_UNSUCCESSFUL;
171 ctx = talloc_new(idmap_alloc_ldap);
173 DEBUG(0, ("Out of memory!\n"));
174 return NT_STATUS_NO_MEMORY;
177 filter = talloc_asprintf(ctx, "(objectclass=%s)", LDAP_OBJ_IDPOOL);
178 CHECK_ALLOC_DONE(filter);
180 attr_list = get_attr_list(ctx, idpool_attr_list);
181 CHECK_ALLOC_DONE(attr_list);
183 rc = smbldap_search(idmap_alloc_ldap->smbldap_state,
184 idmap_alloc_ldap->suffix,
191 if (rc != LDAP_SUCCESS) {
192 DEBUG(1, ("Unable to verify the idpool, "
193 "cannot continue initialization!\n"));
194 return NT_STATUS_UNSUCCESSFUL;
197 count = ldap_count_entries(idmap_alloc_ldap->smbldap_state->ldap_struct,
200 ldap_msgfree(result);
203 DEBUG(0,("Multiple entries returned from %s (base == %s)\n",
204 filter, idmap_alloc_ldap->suffix));
205 ret = NT_STATUS_UNSUCCESSFUL;
208 else if (count == 0) {
209 char *uid_str, *gid_str;
211 uid_str = talloc_asprintf(ctx, "%lu",
212 (unsigned long)idmap_alloc_ldap->low_uid);
213 gid_str = talloc_asprintf(ctx, "%lu",
214 (unsigned long)idmap_alloc_ldap->low_gid);
216 smbldap_set_mod(&mods, LDAP_MOD_ADD,
217 "objectClass", LDAP_OBJ_IDPOOL);
218 smbldap_set_mod(&mods, LDAP_MOD_ADD,
219 get_attr_key2string(idpool_attr_list,
220 LDAP_ATTR_UIDNUMBER),
222 smbldap_set_mod(&mods, LDAP_MOD_ADD,
223 get_attr_key2string(idpool_attr_list,
224 LDAP_ATTR_GIDNUMBER),
227 rc = smbldap_modify(idmap_alloc_ldap->smbldap_state,
228 idmap_alloc_ldap->suffix,
230 ldap_mods_free(mods, True);
232 ret = NT_STATUS_UNSUCCESSFUL;
237 ret = (rc == LDAP_SUCCESS)?NT_STATUS_OK:NT_STATUS_UNSUCCESSFUL;
243 /*****************************************************************************
244 Initialise idmap database.
245 *****************************************************************************/
247 static NTSTATUS idmap_ldap_alloc_init(const char *params)
249 NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
256 /* Only do init if we are online */
257 if (idmap_is_offline()) {
258 return NT_STATUS_FILE_IS_OFFLINE;
261 idmap_alloc_ldap = TALLOC_ZERO_P(NULL, struct idmap_ldap_alloc_context);
262 CHECK_ALLOC_DONE( idmap_alloc_ldap );
266 if (!lp_idmap_uid(&low_uid, &high_uid)
267 || !lp_idmap_gid(&low_gid, &high_gid)) {
268 DEBUG(1, ("idmap uid or idmap gid missing\n"));
269 ret = NT_STATUS_UNSUCCESSFUL;
273 idmap_alloc_ldap->low_uid = low_uid;
274 idmap_alloc_ldap->high_uid = high_uid;
275 idmap_alloc_ldap->low_gid = low_gid;
276 idmap_alloc_ldap->high_gid= high_gid;
278 if (idmap_alloc_ldap->high_uid <= idmap_alloc_ldap->low_uid) {
279 DEBUG(1, ("idmap uid range invalid\n"));
280 DEBUGADD(1, ("idmap will be unable to map foreign SIDs\n"));
281 ret = NT_STATUS_UNSUCCESSFUL;
285 if (idmap_alloc_ldap->high_gid <= idmap_alloc_ldap->low_gid) {
286 DEBUG(1, ("idmap gid range invalid\n"));
287 DEBUGADD(1, ("idmap will be unable to map foreign SIDs\n"));
288 ret = NT_STATUS_UNSUCCESSFUL;
292 if (params && *params) {
293 /* assume location is the only parameter */
294 idmap_alloc_ldap->url = talloc_strdup(idmap_alloc_ldap, params);
296 tmp = lp_parm_const_string(-1, "idmap alloc config",
300 DEBUG(1, ("ERROR: missing idmap ldap url\n"));
301 ret = NT_STATUS_UNSUCCESSFUL;
305 idmap_alloc_ldap->url = talloc_strdup(idmap_alloc_ldap, tmp);
307 CHECK_ALLOC_DONE( idmap_alloc_ldap->url );
309 trim_char(idmap_alloc_ldap->url, '\"', '\"');
311 tmp = lp_parm_const_string(-1, "idmap alloc config",
312 "ldap_base_dn", NULL);
313 if ( ! tmp || ! *tmp) {
314 tmp = lp_ldap_idmap_suffix();
316 DEBUG(1, ("ERROR: missing idmap ldap suffix\n"));
317 ret = NT_STATUS_UNSUCCESSFUL;
322 idmap_alloc_ldap->suffix = talloc_strdup(idmap_alloc_ldap, tmp);
323 CHECK_ALLOC_DONE( idmap_alloc_ldap->suffix );
325 ret = smbldap_init(idmap_alloc_ldap, winbind_event_context(),
326 idmap_alloc_ldap->url,
327 &idmap_alloc_ldap->smbldap_state);
328 if (!NT_STATUS_IS_OK(ret)) {
329 DEBUG(1, ("ERROR: smbldap_init (%s) failed!\n",
330 idmap_alloc_ldap->url));
334 ret = get_credentials( idmap_alloc_ldap,
335 idmap_alloc_ldap->smbldap_state,
336 "idmap alloc config", NULL,
337 &idmap_alloc_ldap->user_dn );
338 if ( !NT_STATUS_IS_OK(ret) ) {
339 DEBUG(1,("idmap_ldap_alloc_init: Failed to get connection "
340 "credentials (%s)\n", nt_errstr(ret)));
344 /* see if the idmap suffix and sub entries exists */
346 ret = verify_idpool();
349 if ( !NT_STATUS_IS_OK( ret ) )
350 TALLOC_FREE( idmap_alloc_ldap );
355 /********************************
356 Allocate a new uid or gid
357 ********************************/
359 static NTSTATUS idmap_ldap_allocate_id(struct unixid *xid)
362 NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
363 int rc = LDAP_SERVER_DOWN;
365 LDAPMessage *result = NULL;
366 LDAPMessage *entry = NULL;
367 LDAPMod **mods = NULL;
371 const char *dn = NULL;
372 const char **attr_list;
375 /* Only do query if we are online */
376 if (idmap_is_offline()) {
377 return NT_STATUS_FILE_IS_OFFLINE;
380 if ( ! idmap_alloc_ldap) {
381 return NT_STATUS_UNSUCCESSFUL;
384 ctx = talloc_new(idmap_alloc_ldap);
386 DEBUG(0, ("Out of memory!\n"));
387 return NT_STATUS_NO_MEMORY;
394 type = get_attr_key2string(idpool_attr_list,
395 LDAP_ATTR_UIDNUMBER);
399 type = get_attr_key2string(idpool_attr_list,
400 LDAP_ATTR_GIDNUMBER);
404 DEBUG(2, ("Invalid ID type (0x%x)\n", xid->type));
405 return NT_STATUS_INVALID_PARAMETER;
408 filter = talloc_asprintf(ctx, "(objectClass=%s)", LDAP_OBJ_IDPOOL);
409 CHECK_ALLOC_DONE(filter);
411 attr_list = get_attr_list(ctx, idpool_attr_list);
412 CHECK_ALLOC_DONE(attr_list);
414 DEBUG(10, ("Search of the id pool (filter: %s)\n", filter));
416 rc = smbldap_search(idmap_alloc_ldap->smbldap_state,
417 idmap_alloc_ldap->suffix,
418 LDAP_SCOPE_SUBTREE, filter,
419 attr_list, 0, &result);
421 if (rc != LDAP_SUCCESS) {
422 DEBUG(0,("%s object not found\n", LDAP_OBJ_IDPOOL));
426 talloc_autofree_ldapmsg(ctx, result);
428 count = ldap_count_entries(idmap_alloc_ldap->smbldap_state->ldap_struct,
431 DEBUG(0,("Single %s object not found\n", LDAP_OBJ_IDPOOL));
435 entry = ldap_first_entry(idmap_alloc_ldap->smbldap_state->ldap_struct,
438 dn = smbldap_talloc_dn(ctx,
439 idmap_alloc_ldap->smbldap_state->ldap_struct,
445 if ( ! (id_str = smbldap_talloc_single_attribute(idmap_alloc_ldap->smbldap_state->ldap_struct,
446 entry, type, ctx))) {
447 DEBUG(0,("%s attribute not found\n", type));
451 DEBUG(0,("Out of memory\n"));
452 ret = NT_STATUS_NO_MEMORY;
456 xid->id = strtoul(id_str, NULL, 10);
458 /* make sure we still have room to grow */
462 if (xid->id > idmap_alloc_ldap->high_uid) {
463 DEBUG(0,("Cannot allocate uid above %lu!\n",
464 (unsigned long)idmap_alloc_ldap->high_uid));
470 if (xid->id > idmap_alloc_ldap->high_gid) {
471 DEBUG(0,("Cannot allocate gid above %lu!\n",
472 (unsigned long)idmap_alloc_ldap->high_uid));
482 new_id_str = talloc_asprintf(ctx, "%lu", (unsigned long)xid->id + 1);
484 DEBUG(0,("Out of memory\n"));
485 ret = NT_STATUS_NO_MEMORY;
489 smbldap_set_mod(&mods, LDAP_MOD_DELETE, type, id_str);
490 smbldap_set_mod(&mods, LDAP_MOD_ADD, type, new_id_str);
493 DEBUG(0,("smbldap_set_mod() failed.\n"));
497 DEBUG(10, ("Try to atomically increment the id (%s -> %s)\n",
498 id_str, new_id_str));
500 rc = smbldap_modify(idmap_alloc_ldap->smbldap_state, dn, mods);
502 ldap_mods_free(mods, True);
504 if (rc != LDAP_SUCCESS) {
505 DEBUG(1,("Failed to allocate new %s. "
506 "smbldap_modify() failed.\n", type));
517 /**********************************
518 Get current highest id.
519 **********************************/
521 static NTSTATUS idmap_ldap_get_hwm(struct unixid *xid)
524 NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
525 int rc = LDAP_SERVER_DOWN;
527 LDAPMessage *result = NULL;
528 LDAPMessage *entry = NULL;
531 const char **attr_list;
534 /* Only do query if we are online */
535 if (idmap_is_offline()) {
536 return NT_STATUS_FILE_IS_OFFLINE;
539 if ( ! idmap_alloc_ldap) {
540 return NT_STATUS_UNSUCCESSFUL;
543 memctx = talloc_new(idmap_alloc_ldap);
545 DEBUG(0, ("Out of memory!\n"));
546 return NT_STATUS_NO_MEMORY;
553 type = get_attr_key2string(idpool_attr_list,
554 LDAP_ATTR_UIDNUMBER);
558 type = get_attr_key2string(idpool_attr_list,
559 LDAP_ATTR_GIDNUMBER);
563 DEBUG(2, ("Invalid ID type (0x%x)\n", xid->type));
564 return NT_STATUS_INVALID_PARAMETER;
567 filter = talloc_asprintf(memctx, "(objectClass=%s)", LDAP_OBJ_IDPOOL);
568 CHECK_ALLOC_DONE(filter);
570 attr_list = get_attr_list(memctx, idpool_attr_list);
571 CHECK_ALLOC_DONE(attr_list);
573 rc = smbldap_search(idmap_alloc_ldap->smbldap_state,
574 idmap_alloc_ldap->suffix,
575 LDAP_SCOPE_SUBTREE, filter,
576 attr_list, 0, &result);
578 if (rc != LDAP_SUCCESS) {
579 DEBUG(0,("%s object not found\n", LDAP_OBJ_IDPOOL));
583 talloc_autofree_ldapmsg(memctx, result);
585 count = ldap_count_entries(idmap_alloc_ldap->smbldap_state->ldap_struct,
588 DEBUG(0,("Single %s object not found\n", LDAP_OBJ_IDPOOL));
592 entry = ldap_first_entry(idmap_alloc_ldap->smbldap_state->ldap_struct,
595 id_str = smbldap_talloc_single_attribute(idmap_alloc_ldap->smbldap_state->ldap_struct,
596 entry, type, memctx);
598 DEBUG(0,("%s attribute not found\n", type));
602 DEBUG(0,("Out of memory\n"));
603 ret = NT_STATUS_NO_MEMORY;
607 xid->id = strtoul(id_str, NULL, 10);
614 /**********************************
616 **********************************/
618 static NTSTATUS idmap_ldap_set_hwm(struct unixid *xid)
621 NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
622 int rc = LDAP_SERVER_DOWN;
624 LDAPMessage *result = NULL;
625 LDAPMessage *entry = NULL;
626 LDAPMod **mods = NULL;
629 const char *dn = NULL;
630 const char **attr_list;
633 /* Only do query if we are online */
634 if (idmap_is_offline()) {
635 return NT_STATUS_FILE_IS_OFFLINE;
638 if ( ! idmap_alloc_ldap) {
639 return NT_STATUS_UNSUCCESSFUL;
642 ctx = talloc_new(idmap_alloc_ldap);
644 DEBUG(0, ("Out of memory!\n"));
645 return NT_STATUS_NO_MEMORY;
652 type = get_attr_key2string(idpool_attr_list,
653 LDAP_ATTR_UIDNUMBER);
657 type = get_attr_key2string(idpool_attr_list,
658 LDAP_ATTR_GIDNUMBER);
662 DEBUG(2, ("Invalid ID type (0x%x)\n", xid->type));
663 return NT_STATUS_INVALID_PARAMETER;
666 filter = talloc_asprintf(ctx, "(objectClass=%s)", LDAP_OBJ_IDPOOL);
667 CHECK_ALLOC_DONE(filter);
669 attr_list = get_attr_list(ctx, idpool_attr_list);
670 CHECK_ALLOC_DONE(attr_list);
672 rc = smbldap_search(idmap_alloc_ldap->smbldap_state,
673 idmap_alloc_ldap->suffix,
674 LDAP_SCOPE_SUBTREE, filter,
675 attr_list, 0, &result);
677 if (rc != LDAP_SUCCESS) {
678 DEBUG(0,("%s object not found\n", LDAP_OBJ_IDPOOL));
682 talloc_autofree_ldapmsg(ctx, result);
684 count = ldap_count_entries(idmap_alloc_ldap->smbldap_state->ldap_struct,
687 DEBUG(0,("Single %s object not found\n", LDAP_OBJ_IDPOOL));
691 entry = ldap_first_entry(idmap_alloc_ldap->smbldap_state->ldap_struct,
694 dn = smbldap_talloc_dn(ctx,
695 idmap_alloc_ldap->smbldap_state->ldap_struct,
701 new_id_str = talloc_asprintf(ctx, "%lu", (unsigned long)xid->id);
703 DEBUG(0,("Out of memory\n"));
704 ret = NT_STATUS_NO_MEMORY;
708 smbldap_set_mod(&mods, LDAP_MOD_REPLACE, type, new_id_str);
711 DEBUG(0,("smbldap_set_mod() failed.\n"));
715 rc = smbldap_modify(idmap_alloc_ldap->smbldap_state, dn, mods);
717 ldap_mods_free(mods, True);
719 if (rc != LDAP_SUCCESS) {
720 DEBUG(1,("Failed to allocate new %s. "
721 "smbldap_modify() failed.\n", type));
732 /**********************************
733 Close idmap ldap alloc
734 **********************************/
736 static NTSTATUS idmap_ldap_alloc_close(void)
738 if (idmap_alloc_ldap) {
739 smbldap_free_struct(&idmap_alloc_ldap->smbldap_state);
740 DEBUG(5,("The connection to the LDAP server was closed\n"));
741 /* maybe free the results here --metze */
742 TALLOC_FREE(idmap_alloc_ldap);
748 /**********************************************************************
749 IDMAP MAPPING LDAP BACKEND
750 **********************************************************************/
752 static int idmap_ldap_close_destructor(struct idmap_ldap_context *ctx)
754 smbldap_free_struct(&ctx->smbldap_state);
755 DEBUG(5,("The connection to the LDAP server was closed\n"));
756 /* maybe free the results here --metze */
761 /********************************
762 Initialise idmap database.
763 ********************************/
765 static NTSTATUS idmap_ldap_db_init(struct idmap_domain *dom,
769 struct idmap_ldap_context *ctx = NULL;
770 char *config_option = NULL;
771 const char *tmp = NULL;
773 /* Only do init if we are online */
774 if (idmap_is_offline()) {
775 return NT_STATUS_FILE_IS_OFFLINE;
778 ctx = TALLOC_ZERO_P(dom, struct idmap_ldap_context);
780 DEBUG(0, ("Out of memory!\n"));
781 return NT_STATUS_NO_MEMORY;
784 if (strequal(dom->name, "*")) {
790 ctx->filter_low_id = 0;
791 ctx->filter_high_id = 0;
793 if (lp_idmap_uid(&low_uid, &high_uid)) {
794 ctx->filter_low_id = low_uid;
795 ctx->filter_high_id = high_uid;
797 DEBUG(3, ("Warning: 'idmap uid' not set!\n"));
800 if (lp_idmap_gid(&low_gid, &high_gid)) {
801 if ((low_gid != low_uid) || (high_gid != high_uid)) {
802 DEBUG(1, ("Warning: 'idmap uid' and 'idmap gid'"
803 " ranges do not agree -- building "
805 ctx->filter_low_id = MAX(ctx->filter_low_id,
807 ctx->filter_high_id = MIN(ctx->filter_high_id,
811 DEBUG(3, ("Warning: 'idmap gid' not set!\n"));
814 const char *range = NULL;
816 config_option = talloc_asprintf(ctx, "idmap config %s", dom->name);
817 if ( ! config_option) {
818 DEBUG(0, ("Out of memory!\n"));
819 ret = NT_STATUS_NO_MEMORY;
824 range = lp_parm_const_string(-1, config_option, "range", NULL);
825 if (range && range[0]) {
826 if ((sscanf(range, "%u - %u", &ctx->filter_low_id,
827 &ctx->filter_high_id) != 2))
829 DEBUG(1, ("ERROR: invalid filter range [%s]", range));
830 ctx->filter_low_id = 0;
831 ctx->filter_high_id = 0;
836 if (ctx->filter_low_id > ctx->filter_high_id) {
837 DEBUG(1, ("ERROR: invalid filter range [%u-%u]",
838 ctx->filter_low_id, ctx->filter_high_id));
839 ctx->filter_low_id = 0;
840 ctx->filter_high_id = 0;
843 if (params != NULL) {
844 /* assume location is the only parameter */
845 ctx->url = talloc_strdup(ctx, params);
847 tmp = lp_parm_const_string(-1, config_option, "ldap_url", NULL);
850 DEBUG(1, ("ERROR: missing idmap ldap url\n"));
851 ret = NT_STATUS_UNSUCCESSFUL;
855 ctx->url = talloc_strdup(ctx, tmp);
857 CHECK_ALLOC_DONE(ctx->url);
859 trim_char(ctx->url, '\"', '\"');
861 tmp = lp_parm_const_string(-1, config_option, "ldap_base_dn", NULL);
862 if ( ! tmp || ! *tmp) {
863 tmp = lp_ldap_idmap_suffix();
865 DEBUG(1, ("ERROR: missing idmap ldap suffix\n"));
866 ret = NT_STATUS_UNSUCCESSFUL;
871 ctx->suffix = talloc_strdup(ctx, tmp);
872 CHECK_ALLOC_DONE(ctx->suffix);
874 ret = smbldap_init(ctx, winbind_event_context(), ctx->url,
875 &ctx->smbldap_state);
876 if (!NT_STATUS_IS_OK(ret)) {
877 DEBUG(1, ("ERROR: smbldap_init (%s) failed!\n", ctx->url));
881 ret = get_credentials( ctx, ctx->smbldap_state, config_option,
882 dom, &ctx->user_dn );
883 if ( !NT_STATUS_IS_OK(ret) ) {
884 DEBUG(1,("idmap_ldap_db_init: Failed to get connection "
885 "credentials (%s)\n", nt_errstr(ret)));
889 /* set the destructor on the context, so that resource are properly
890 freed if the contexts is released */
892 talloc_set_destructor(ctx, idmap_ldap_close_destructor);
894 dom->private_data = ctx;
896 talloc_free(config_option);
905 /* max number of ids requested per batch query */
906 #define IDMAP_LDAP_MAX_IDS 30
908 /**********************************
909 lookup a set of unix ids.
910 **********************************/
912 /* this function searches up to IDMAP_LDAP_MAX_IDS entries
913 * in maps for a match */
914 static struct id_map *find_map_by_id(struct id_map **maps,
920 for (i = 0; i < IDMAP_LDAP_MAX_IDS; i++) {
921 if (maps[i] == NULL) { /* end of the run */
924 if ((maps[i]->xid.type == type) && (maps[i]->xid.id == id)) {
932 static NTSTATUS idmap_ldap_unixids_to_sids(struct idmap_domain *dom,
937 struct idmap_ldap_context *ctx;
938 LDAPMessage *result = NULL;
939 LDAPMessage *entry = NULL;
940 const char *uidNumber;
941 const char *gidNumber;
942 const char **attr_list;
951 /* Only do query if we are online */
952 if (idmap_is_offline()) {
953 return NT_STATUS_FILE_IS_OFFLINE;
956 ctx = talloc_get_type(dom->private_data, struct idmap_ldap_context);
958 memctx = talloc_new(ctx);
960 DEBUG(0, ("Out of memory!\n"));
961 return NT_STATUS_NO_MEMORY;
964 uidNumber = get_attr_key2string(idpool_attr_list, LDAP_ATTR_UIDNUMBER);
965 gidNumber = get_attr_key2string(idpool_attr_list, LDAP_ATTR_GIDNUMBER);
967 attr_list = get_attr_list(memctx, sidmap_attr_list);
970 /* if we are requested just one mapping use the simple filter */
972 filter = talloc_asprintf(memctx, "(&(objectClass=%s)(%s=%lu))",
973 LDAP_OBJ_IDMAP_ENTRY,
974 (ids[0]->xid.type==ID_TYPE_UID)?uidNumber:gidNumber,
975 (unsigned long)ids[0]->xid.id);
976 CHECK_ALLOC_DONE(filter);
977 DEBUG(10, ("Filter: [%s]\n", filter));
979 /* multiple mappings */
983 for (i = 0; ids[i]; i++) {
984 ids[i]->status = ID_UNKNOWN;
991 filter = talloc_asprintf(memctx,
992 "(&(objectClass=%s)(|",
993 LDAP_OBJ_IDMAP_ENTRY);
994 CHECK_ALLOC_DONE(filter);
997 for (i = 0; (i < IDMAP_LDAP_MAX_IDS) && ids[idx]; i++, idx++) {
998 filter = talloc_asprintf_append_buffer(filter, "(%s=%lu)",
999 (ids[idx]->xid.type==ID_TYPE_UID)?uidNumber:gidNumber,
1000 (unsigned long)ids[idx]->xid.id);
1001 CHECK_ALLOC_DONE(filter);
1003 filter = talloc_asprintf_append_buffer(filter, "))");
1004 CHECK_ALLOC_DONE(filter);
1005 DEBUG(10, ("Filter: [%s]\n", filter));
1011 rc = smbldap_search(ctx->smbldap_state, ctx->suffix, LDAP_SCOPE_SUBTREE,
1012 filter, attr_list, 0, &result);
1014 if (rc != LDAP_SUCCESS) {
1015 DEBUG(3,("Failure looking up ids (%s)\n", ldap_err2string(rc)));
1016 ret = NT_STATUS_UNSUCCESSFUL;
1020 count = ldap_count_entries(ctx->smbldap_state->ldap_struct, result);
1023 DEBUG(10, ("NO SIDs found\n"));
1026 for (i = 0; i < count; i++) {
1027 char *sidstr = NULL;
1033 if (i == 0) { /* first entry */
1034 entry = ldap_first_entry(ctx->smbldap_state->ldap_struct,
1036 } else { /* following ones */
1037 entry = ldap_next_entry(ctx->smbldap_state->ldap_struct,
1041 DEBUG(2, ("ERROR: Unable to fetch ldap entries "
1046 /* first check if the SID is present */
1047 sidstr = smbldap_talloc_single_attribute(
1048 ctx->smbldap_state->ldap_struct,
1049 entry, LDAP_ATTRIBUTE_SID, memctx);
1050 if ( ! sidstr) { /* no sid, skip entry */
1051 DEBUG(2, ("WARNING SID not found on entry\n"));
1055 /* now try to see if it is a uid, if not try with a gid
1056 * (gid is more common, but in case both uidNumber and
1057 * gidNumber are returned the SID is mapped to the uid
1060 tmp = smbldap_talloc_single_attribute(
1061 ctx->smbldap_state->ldap_struct,
1062 entry, uidNumber, memctx);
1065 tmp = smbldap_talloc_single_attribute(
1066 ctx->smbldap_state->ldap_struct,
1067 entry, gidNumber, memctx);
1069 if ( ! tmp) { /* wow very strange entry, how did it match ? */
1070 DEBUG(5, ("Unprobable match on (%s), no uidNumber, "
1071 "nor gidNumber returned\n", sidstr));
1072 TALLOC_FREE(sidstr);
1076 id = strtoul(tmp, NULL, 10);
1078 (ctx->filter_low_id && (id < ctx->filter_low_id)) ||
1079 (ctx->filter_high_id && (id > ctx->filter_high_id))) {
1080 DEBUG(5, ("Requested id (%u) out of range (%u - %u). "
1082 ctx->filter_low_id, ctx->filter_high_id));
1083 TALLOC_FREE(sidstr);
1089 map = find_map_by_id(&ids[bidx], type, id);
1091 DEBUG(2, ("WARNING: couldn't match sid (%s) "
1092 "with requested ids\n", sidstr));
1093 TALLOC_FREE(sidstr);
1097 if ( ! string_to_sid(map->sid, sidstr)) {
1098 DEBUG(2, ("ERROR: Invalid SID on entry\n"));
1099 TALLOC_FREE(sidstr);
1103 if (map->status == ID_MAPPED) {
1104 DEBUG(1, ("WARNING: duplicate %s mapping in LDAP. "
1105 "overwriting mapping %u -> %s with %u -> %s\n",
1106 (type == ID_TYPE_UID) ? "UID" : "GID",
1107 id, sid_string_dbg(map->sid), id, sidstr));
1110 TALLOC_FREE(sidstr);
1113 map->status = ID_MAPPED;
1115 DEBUG(10, ("Mapped %s -> %lu (%d)\n", sid_string_dbg(map->sid),
1116 (unsigned long)map->xid.id, map->xid.type));
1119 /* free the ldap results */
1121 ldap_msgfree(result);
1125 if (multi && ids[idx]) { /* still some values to map */
1131 /* mark all unknwon/expired ones as unmapped */
1132 for (i = 0; ids[i]; i++) {
1133 if (ids[i]->status != ID_MAPPED)
1134 ids[i]->status = ID_UNMAPPED;
1138 talloc_free(memctx);
1142 /**********************************
1143 lookup a set of sids.
1144 **********************************/
1146 /* this function searches up to IDMAP_LDAP_MAX_IDS entries
1147 * in maps for a match */
1148 static struct id_map *find_map_by_sid(struct id_map **maps, struct dom_sid *sid)
1152 for (i = 0; i < IDMAP_LDAP_MAX_IDS; i++) {
1153 if (maps[i] == NULL) { /* end of the run */
1156 if (sid_equal(maps[i]->sid, sid)) {
1164 static NTSTATUS idmap_ldap_sids_to_unixids(struct idmap_domain *dom,
1165 struct id_map **ids)
1167 LDAPMessage *entry = NULL;
1170 struct idmap_ldap_context *ctx;
1171 LDAPMessage *result = NULL;
1172 const char *uidNumber;
1173 const char *gidNumber;
1174 const char **attr_list;
1175 char *filter = NULL;
1183 /* Only do query if we are online */
1184 if (idmap_is_offline()) {
1185 return NT_STATUS_FILE_IS_OFFLINE;
1188 ctx = talloc_get_type(dom->private_data, struct idmap_ldap_context);
1190 memctx = talloc_new(ctx);
1192 DEBUG(0, ("Out of memory!\n"));
1193 return NT_STATUS_NO_MEMORY;
1196 uidNumber = get_attr_key2string(idpool_attr_list, LDAP_ATTR_UIDNUMBER);
1197 gidNumber = get_attr_key2string(idpool_attr_list, LDAP_ATTR_GIDNUMBER);
1199 attr_list = get_attr_list(memctx, sidmap_attr_list);
1202 /* if we are requested just one mapping use the simple filter */
1204 filter = talloc_asprintf(memctx, "(&(objectClass=%s)(%s=%s))",
1205 LDAP_OBJ_IDMAP_ENTRY,
1207 sid_string_talloc(memctx, ids[0]->sid));
1208 CHECK_ALLOC_DONE(filter);
1209 DEBUG(10, ("Filter: [%s]\n", filter));
1211 /* multiple mappings */
1215 for (i = 0; ids[i]; i++) {
1216 ids[i]->status = ID_UNKNOWN;
1222 TALLOC_FREE(filter);
1223 filter = talloc_asprintf(memctx,
1224 "(&(objectClass=%s)(|",
1225 LDAP_OBJ_IDMAP_ENTRY);
1226 CHECK_ALLOC_DONE(filter);
1229 for (i = 0; (i < IDMAP_LDAP_MAX_IDS) && ids[idx]; i++, idx++) {
1230 filter = talloc_asprintf_append_buffer(filter, "(%s=%s)",
1232 sid_string_talloc(memctx,
1234 CHECK_ALLOC_DONE(filter);
1236 filter = talloc_asprintf_append_buffer(filter, "))");
1237 CHECK_ALLOC_DONE(filter);
1238 DEBUG(10, ("Filter: [%s]", filter));
1244 rc = smbldap_search(ctx->smbldap_state, ctx->suffix, LDAP_SCOPE_SUBTREE,
1245 filter, attr_list, 0, &result);
1247 if (rc != LDAP_SUCCESS) {
1248 DEBUG(3,("Failure looking up sids (%s)\n",
1249 ldap_err2string(rc)));
1250 ret = NT_STATUS_UNSUCCESSFUL;
1254 count = ldap_count_entries(ctx->smbldap_state->ldap_struct, result);
1257 DEBUG(10, ("NO SIDs found\n"));
1260 for (i = 0; i < count; i++) {
1261 char *sidstr = NULL;
1268 if (i == 0) { /* first entry */
1269 entry = ldap_first_entry(ctx->smbldap_state->ldap_struct,
1271 } else { /* following ones */
1272 entry = ldap_next_entry(ctx->smbldap_state->ldap_struct,
1276 DEBUG(2, ("ERROR: Unable to fetch ldap entries "
1281 /* first check if the SID is present */
1282 sidstr = smbldap_talloc_single_attribute(
1283 ctx->smbldap_state->ldap_struct,
1284 entry, LDAP_ATTRIBUTE_SID, memctx);
1285 if ( ! sidstr) { /* no sid ??, skip entry */
1286 DEBUG(2, ("WARNING SID not found on entry\n"));
1290 if ( ! string_to_sid(&sid, sidstr)) {
1291 DEBUG(2, ("ERROR: Invalid SID on entry\n"));
1292 TALLOC_FREE(sidstr);
1296 map = find_map_by_sid(&ids[bidx], &sid);
1298 DEBUG(2, ("WARNING: couldn't find entry sid (%s) "
1300 TALLOC_FREE(sidstr);
1304 /* now try to see if it is a uid, if not try with a gid
1305 * (gid is more common, but in case both uidNumber and
1306 * gidNumber are returned the SID is mapped to the uid
1309 tmp = smbldap_talloc_single_attribute(
1310 ctx->smbldap_state->ldap_struct,
1311 entry, uidNumber, memctx);
1314 tmp = smbldap_talloc_single_attribute(
1315 ctx->smbldap_state->ldap_struct,
1316 entry, gidNumber, memctx);
1318 if ( ! tmp) { /* no ids ?? */
1319 DEBUG(5, ("no uidNumber, "
1320 "nor gidNumber attributes found\n"));
1321 TALLOC_FREE(sidstr);
1325 id = strtoul(tmp, NULL, 10);
1327 (ctx->filter_low_id && (id < ctx->filter_low_id)) ||
1328 (ctx->filter_high_id && (id > ctx->filter_high_id))) {
1329 DEBUG(5, ("Requested id (%u) out of range (%u - %u). "
1331 ctx->filter_low_id, ctx->filter_high_id));
1332 TALLOC_FREE(sidstr);
1338 if (map->status == ID_MAPPED) {
1339 DEBUG(1, ("WARNING: duplicate %s mapping in LDAP. "
1340 "overwriting mapping %s -> %u with %s -> %u\n",
1341 (type == ID_TYPE_UID) ? "UID" : "GID",
1342 sidstr, map->xid.id, sidstr, id));
1345 TALLOC_FREE(sidstr);
1348 map->xid.type = type;
1350 map->status = ID_MAPPED;
1352 DEBUG(10, ("Mapped %s -> %lu (%d)\n", sid_string_dbg(map->sid),
1353 (unsigned long)map->xid.id, map->xid.type));
1356 /* free the ldap results */
1358 ldap_msgfree(result);
1362 if (multi && ids[idx]) { /* still some values to map */
1368 /* mark all unknwon/expired ones as unmapped */
1369 for (i = 0; ids[i]; i++) {
1370 if (ids[i]->status != ID_MAPPED)
1371 ids[i]->status = ID_UNMAPPED;
1375 talloc_free(memctx);
1379 /**********************************
1381 **********************************/
1383 /* TODO: change this: This function cannot be called to modify a mapping,
1384 * only set a new one */
1386 static NTSTATUS idmap_ldap_set_mapping(struct idmap_domain *dom,
1387 const struct id_map *map)
1391 struct idmap_ldap_context *ctx;
1392 LDAPMessage *entry = NULL;
1393 LDAPMod **mods = NULL;
1400 /* Only do query if we are online */
1401 if (idmap_is_offline()) {
1402 return NT_STATUS_FILE_IS_OFFLINE;
1405 ctx = talloc_get_type(dom->private_data, struct idmap_ldap_context);
1407 switch(map->xid.type) {
1409 type = get_attr_key2string(sidmap_attr_list,
1410 LDAP_ATTR_UIDNUMBER);
1414 type = get_attr_key2string(sidmap_attr_list,
1415 LDAP_ATTR_GIDNUMBER);
1419 return NT_STATUS_INVALID_PARAMETER;
1422 memctx = talloc_new(ctx);
1424 DEBUG(0, ("Out of memory!\n"));
1425 return NT_STATUS_NO_MEMORY;
1428 id_str = talloc_asprintf(memctx, "%lu", (unsigned long)map->xid.id);
1429 CHECK_ALLOC_DONE(id_str);
1431 sid = talloc_strdup(memctx, sid_string_talloc(memctx, map->sid));
1432 CHECK_ALLOC_DONE(sid);
1434 dn = talloc_asprintf(memctx, "%s=%s,%s",
1435 get_attr_key2string(sidmap_attr_list, LDAP_ATTR_SID),
1438 CHECK_ALLOC_DONE(dn);
1440 smbldap_set_mod(&mods, LDAP_MOD_ADD,
1441 "objectClass", LDAP_OBJ_IDMAP_ENTRY);
1443 smbldap_make_mod(ctx->smbldap_state->ldap_struct,
1444 entry, &mods, type, id_str);
1446 smbldap_make_mod(ctx->smbldap_state->ldap_struct, entry, &mods,
1447 get_attr_key2string(sidmap_attr_list, LDAP_ATTR_SID),
1451 DEBUG(2, ("ERROR: No mods?\n"));
1452 ret = NT_STATUS_UNSUCCESSFUL;
1456 /* TODO: remove conflicting mappings! */
1458 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_SID_ENTRY);
1460 DEBUG(10, ("Set DN %s (%s -> %s)\n", dn, sid, id_str));
1462 rc = smbldap_add(ctx->smbldap_state, dn, mods);
1463 ldap_mods_free(mods, True);
1465 if (rc != LDAP_SUCCESS) {
1466 char *ld_error = NULL;
1467 ldap_get_option(ctx->smbldap_state->ldap_struct,
1468 LDAP_OPT_ERROR_STRING, &ld_error);
1469 DEBUG(0,("ldap_set_mapping_internals: Failed to add %s to %lu "
1470 "mapping [%s]\n", sid,
1471 (unsigned long)map->xid.id, type));
1472 DEBUG(0, ("ldap_set_mapping_internals: Error was: %s (%s)\n",
1473 ld_error ? ld_error : "(NULL)", ldap_err2string (rc)));
1475 ldap_memfree(ld_error);
1477 ret = NT_STATUS_UNSUCCESSFUL;
1481 DEBUG(10,("ldap_set_mapping: Successfully created mapping from %s to "
1482 "%lu [%s]\n", sid, (unsigned long)map->xid.id, type));
1487 talloc_free(memctx);
1491 /**********************************
1492 Close the idmap ldap instance
1493 **********************************/
1495 static NTSTATUS idmap_ldap_close(struct idmap_domain *dom)
1497 struct idmap_ldap_context *ctx;
1499 if (dom->private_data) {
1500 ctx = talloc_get_type(dom->private_data,
1501 struct idmap_ldap_context);
1504 dom->private_data = NULL;
1507 return NT_STATUS_OK;
1510 static struct idmap_methods idmap_ldap_methods = {
1512 .init = idmap_ldap_db_init,
1513 .unixids_to_sids = idmap_ldap_unixids_to_sids,
1514 .sids_to_unixids = idmap_ldap_sids_to_unixids,
1515 .set_mapping = idmap_ldap_set_mapping,
1516 .close_fn = idmap_ldap_close
1519 static struct idmap_alloc_methods idmap_ldap_alloc_methods = {
1521 .init = idmap_ldap_alloc_init,
1522 .allocate_id = idmap_ldap_allocate_id,
1523 .get_id_hwm = idmap_ldap_get_hwm,
1524 .set_id_hwm = idmap_ldap_set_hwm,
1525 .close_fn = idmap_ldap_alloc_close,
1526 /* .dump_data = TODO */
1529 static NTSTATUS idmap_alloc_ldap_init(void)
1531 return smb_register_idmap_alloc(SMB_IDMAP_INTERFACE_VERSION, "ldap",
1532 &idmap_ldap_alloc_methods);
1535 NTSTATUS idmap_ldap_init(void);
1536 NTSTATUS idmap_ldap_init(void)
1540 /* FIXME: bad hack to actually register also the alloc_ldap module
1541 * without changining configure.in */
1542 ret = idmap_alloc_ldap_init();
1543 if (! NT_STATUS_IS_OK(ret)) {
1546 return smb_register_idmap(SMB_IDMAP_INTERFACE_VERSION, "ldap",
1547 &idmap_ldap_methods);