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
10 Copyright (C) Michael Adam 2010
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; either version 3 of the License, or
15 (at your option) any later version.
17 This program is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 GNU General Public License for more details.
22 You should have received a copy of the GNU General Public License
23 along with this program. If not, see <http://www.gnu.org/licenses/>.
31 #include "../libcli/security/security.h"
34 #define DBGC_CLASS DBGC_IDMAP
41 static char *idmap_fetch_secret(const char *backend
,
42 const char *domain
, const char *identity
)
47 r
= asprintf(&tmp
, "IDMAP_%s_%s", backend
, domain
);
52 strupper_m(tmp
); /* make sure the key is case insensitive */
53 ret
= secrets_fetch_generic(tmp
, identity
);
60 struct idmap_ldap_context
{
61 struct smbldap_state
*smbldap_state
;
66 struct idmap_rw_ops
*rw_ops
;
69 #define CHECK_ALLOC_DONE(mem) do { \
71 DEBUG(0, ("Out of memory!\n")); \
72 ret = NT_STATUS_NO_MEMORY; \
76 /**********************************************************************
77 IDMAP ALLOC TDB BACKEND
78 **********************************************************************/
80 /*********************************************************************
81 ********************************************************************/
83 static NTSTATUS
get_credentials( TALLOC_CTX
*mem_ctx
,
84 struct smbldap_state
*ldap_state
,
85 const char *config_option
,
86 struct idmap_domain
*dom
,
89 NTSTATUS ret
= NT_STATUS_UNSUCCESSFUL
;
91 const char *tmp
= NULL
;
95 /* assume anonymous if we don't have a specified user */
97 tmp
= lp_parm_const_string(-1, config_option
, "ldap_user_dn", NULL
);
101 DEBUG(0, ("get_credentials: Invalid domain 'NULL' "
102 "encountered for user DN %s\n",
104 ret
= NT_STATUS_UNSUCCESSFUL
;
107 secret
= idmap_fetch_secret("ldap", dom
->name
, tmp
);
111 DEBUG(0, ("get_credentials: Unable to fetch "
112 "auth credentials for %s in %s\n",
113 tmp
, (dom
==NULL
)?"ALLOC":dom
->name
));
114 ret
= NT_STATUS_ACCESS_DENIED
;
117 *dn
= talloc_strdup(mem_ctx
, tmp
);
118 CHECK_ALLOC_DONE(*dn
);
120 if (!fetch_ldap_pw(&user_dn
, &secret
)) {
121 DEBUG(2, ("get_credentials: Failed to lookup ldap "
122 "bind creds. Using anonymous connection.\n"));
126 *dn
= talloc_strdup(mem_ctx
, user_dn
);
127 SAFE_FREE( user_dn
);
128 CHECK_ALLOC_DONE(*dn
);
132 smbldap_set_creds(ldap_state
, anon
, *dn
, secret
);
142 /**********************************************************************
143 Verify the sambaUnixIdPool entry in the directory.
144 **********************************************************************/
146 static NTSTATUS
verify_idpool(struct idmap_domain
*dom
)
150 LDAPMessage
*result
= NULL
;
151 LDAPMod
**mods
= NULL
;
152 const char **attr_list
;
156 struct idmap_ldap_context
*ctx
;
158 ctx
= talloc_get_type(dom
->private_data
, struct idmap_ldap_context
);
160 mem_ctx
= talloc_new(ctx
);
161 if (mem_ctx
== NULL
) {
162 DEBUG(0, ("Out of memory!\n"));
163 return NT_STATUS_NO_MEMORY
;
166 filter
= talloc_asprintf(mem_ctx
, "(objectclass=%s)", LDAP_OBJ_IDPOOL
);
167 CHECK_ALLOC_DONE(filter
);
169 attr_list
= get_attr_list(mem_ctx
, idpool_attr_list
);
170 CHECK_ALLOC_DONE(attr_list
);
172 rc
= smbldap_search(ctx
->smbldap_state
,
180 if (rc
!= LDAP_SUCCESS
) {
181 DEBUG(1, ("Unable to verify the idpool, "
182 "cannot continue initialization!\n"));
183 return NT_STATUS_UNSUCCESSFUL
;
186 count
= ldap_count_entries(ctx
->smbldap_state
->ldap_struct
, result
);
188 ldap_msgfree(result
);
191 DEBUG(0,("Multiple entries returned from %s (base == %s)\n",
192 filter
, ctx
->suffix
));
193 ret
= NT_STATUS_UNSUCCESSFUL
;
196 else if (count
== 0) {
197 char *uid_str
, *gid_str
;
199 uid_str
= talloc_asprintf(mem_ctx
, "%lu",
200 (unsigned long)dom
->low_id
);
201 gid_str
= talloc_asprintf(mem_ctx
, "%lu",
202 (unsigned long)dom
->low_id
);
204 smbldap_set_mod(&mods
, LDAP_MOD_ADD
,
205 "objectClass", LDAP_OBJ_IDPOOL
);
206 smbldap_set_mod(&mods
, LDAP_MOD_ADD
,
207 get_attr_key2string(idpool_attr_list
,
208 LDAP_ATTR_UIDNUMBER
),
210 smbldap_set_mod(&mods
, LDAP_MOD_ADD
,
211 get_attr_key2string(idpool_attr_list
,
212 LDAP_ATTR_GIDNUMBER
),
215 rc
= smbldap_modify(ctx
->smbldap_state
,
218 ldap_mods_free(mods
, True
);
220 ret
= NT_STATUS_UNSUCCESSFUL
;
225 ret
= (rc
== LDAP_SUCCESS
)?NT_STATUS_OK
:NT_STATUS_UNSUCCESSFUL
;
227 talloc_free(mem_ctx
);
231 /********************************
232 Allocate a new uid or gid
233 ********************************/
235 static NTSTATUS
idmap_ldap_allocate_id_internal(struct idmap_domain
*dom
,
239 NTSTATUS ret
= NT_STATUS_UNSUCCESSFUL
;
240 int rc
= LDAP_SERVER_DOWN
;
242 LDAPMessage
*result
= NULL
;
243 LDAPMessage
*entry
= NULL
;
244 LDAPMod
**mods
= NULL
;
248 const char *dn
= NULL
;
249 const char **attr_list
;
251 struct idmap_ldap_context
*ctx
;
253 /* Only do query if we are online */
254 if (idmap_is_offline()) {
255 return NT_STATUS_FILE_IS_OFFLINE
;
258 ctx
= talloc_get_type(dom
->private_data
, struct idmap_ldap_context
);
260 mem_ctx
= talloc_new(ctx
);
262 DEBUG(0, ("Out of memory!\n"));
263 return NT_STATUS_NO_MEMORY
;
270 type
= get_attr_key2string(idpool_attr_list
,
271 LDAP_ATTR_UIDNUMBER
);
275 type
= get_attr_key2string(idpool_attr_list
,
276 LDAP_ATTR_GIDNUMBER
);
280 DEBUG(2, ("Invalid ID type (0x%x)\n", xid
->type
));
281 return NT_STATUS_INVALID_PARAMETER
;
284 filter
= talloc_asprintf(mem_ctx
, "(objectClass=%s)", LDAP_OBJ_IDPOOL
);
285 CHECK_ALLOC_DONE(filter
);
287 attr_list
= get_attr_list(mem_ctx
, idpool_attr_list
);
288 CHECK_ALLOC_DONE(attr_list
);
290 DEBUG(10, ("Search of the id pool (filter: %s)\n", filter
));
292 rc
= smbldap_search(ctx
->smbldap_state
,
294 LDAP_SCOPE_SUBTREE
, filter
,
295 attr_list
, 0, &result
);
297 if (rc
!= LDAP_SUCCESS
) {
298 DEBUG(0,("%s object not found\n", LDAP_OBJ_IDPOOL
));
302 talloc_autofree_ldapmsg(mem_ctx
, result
);
304 count
= ldap_count_entries(ctx
->smbldap_state
->ldap_struct
, result
);
306 DEBUG(0,("Single %s object not found\n", LDAP_OBJ_IDPOOL
));
310 entry
= ldap_first_entry(ctx
->smbldap_state
->ldap_struct
, result
);
312 dn
= smbldap_talloc_dn(mem_ctx
,
313 ctx
->smbldap_state
->ldap_struct
,
319 id_str
= smbldap_talloc_single_attribute(
320 ctx
->smbldap_state
->ldap_struct
,
321 entry
, type
, mem_ctx
);
322 if (id_str
== NULL
) {
323 DEBUG(0,("%s attribute not found\n", type
));
324 ret
= NT_STATUS_UNSUCCESSFUL
;
328 xid
->id
= strtoul(id_str
, NULL
, 10);
330 /* make sure we still have room to grow */
334 if (xid
->id
> dom
->high_id
) {
335 DEBUG(0,("Cannot allocate uid above %lu!\n",
336 (unsigned long)dom
->high_id
));
342 if (xid
->id
> dom
->high_id
) {
343 DEBUG(0,("Cannot allocate gid above %lu!\n",
344 (unsigned long)dom
->high_id
));
354 new_id_str
= talloc_asprintf(mem_ctx
, "%lu", (unsigned long)xid
->id
+ 1);
356 DEBUG(0,("Out of memory\n"));
357 ret
= NT_STATUS_NO_MEMORY
;
361 smbldap_set_mod(&mods
, LDAP_MOD_DELETE
, type
, id_str
);
362 smbldap_set_mod(&mods
, LDAP_MOD_ADD
, type
, new_id_str
);
365 DEBUG(0,("smbldap_set_mod() failed.\n"));
369 DEBUG(10, ("Try to atomically increment the id (%s -> %s)\n",
370 id_str
, new_id_str
));
372 rc
= smbldap_modify(ctx
->smbldap_state
, dn
, mods
);
374 ldap_mods_free(mods
, True
);
376 if (rc
!= LDAP_SUCCESS
) {
377 DEBUG(1,("Failed to allocate new %s. "
378 "smbldap_modify() failed.\n", type
));
385 talloc_free(mem_ctx
);
390 * Allocate a new unix-ID.
391 * For now this is for the default idmap domain only.
392 * Should be extended later on.
394 static NTSTATUS
idmap_ldap_allocate_id(struct idmap_domain
*dom
,
399 if (!strequal(dom
->name
, "*")) {
400 DEBUG(3, ("idmap_ldap_allocate_id: "
401 "Refusing allocation of a new unixid for domain'%s'. "
402 "This is only supported for the default "
405 return NT_STATUS_NOT_IMPLEMENTED
;
408 ret
= idmap_ldap_allocate_id_internal(dom
, id
);
414 /**********************************************************************
415 IDMAP MAPPING LDAP BACKEND
416 **********************************************************************/
418 static int idmap_ldap_close_destructor(struct idmap_ldap_context
*ctx
)
420 smbldap_free_struct(&ctx
->smbldap_state
);
421 DEBUG(5,("The connection to the LDAP server was closed\n"));
422 /* maybe free the results here --metze */
427 /********************************
428 Initialise idmap database.
429 ********************************/
431 static NTSTATUS
idmap_ldap_set_mapping(struct idmap_domain
*dom
,
432 const struct id_map
*map
);
434 static NTSTATUS
idmap_ldap_db_init(struct idmap_domain
*dom
)
437 struct idmap_ldap_context
*ctx
= NULL
;
438 char *config_option
= NULL
;
439 const char *tmp
= NULL
;
441 /* Only do init if we are online */
442 if (idmap_is_offline()) {
443 return NT_STATUS_FILE_IS_OFFLINE
;
446 ctx
= TALLOC_ZERO_P(dom
, struct idmap_ldap_context
);
448 DEBUG(0, ("Out of memory!\n"));
449 return NT_STATUS_NO_MEMORY
;
452 config_option
= talloc_asprintf(ctx
, "idmap config %s", dom
->name
);
453 if (!config_option
) {
454 DEBUG(0, ("Out of memory!\n"));
455 ret
= NT_STATUS_NO_MEMORY
;
459 tmp
= lp_parm_const_string(-1, config_option
, "ldap_url", NULL
);
462 DEBUG(1, ("ERROR: missing idmap ldap url\n"));
463 ret
= NT_STATUS_UNSUCCESSFUL
;
467 ctx
->url
= talloc_strdup(ctx
, tmp
);
469 trim_char(ctx
->url
, '\"', '\"');
471 tmp
= lp_parm_const_string(-1, config_option
, "ldap_base_dn", NULL
);
472 if ( ! tmp
|| ! *tmp
) {
473 tmp
= lp_ldap_idmap_suffix();
475 DEBUG(1, ("ERROR: missing idmap ldap suffix\n"));
476 ret
= NT_STATUS_UNSUCCESSFUL
;
481 ctx
->suffix
= talloc_strdup(ctx
, tmp
);
482 CHECK_ALLOC_DONE(ctx
->suffix
);
484 ctx
->rw_ops
= talloc_zero(ctx
, struct idmap_rw_ops
);
485 CHECK_ALLOC_DONE(ctx
->rw_ops
);
487 ctx
->rw_ops
->get_new_id
= idmap_ldap_allocate_id_internal
;
488 ctx
->rw_ops
->set_mapping
= idmap_ldap_set_mapping
;
490 ret
= smbldap_init(ctx
, winbind_event_context(), ctx
->url
,
491 &ctx
->smbldap_state
);
492 if (!NT_STATUS_IS_OK(ret
)) {
493 DEBUG(1, ("ERROR: smbldap_init (%s) failed!\n", ctx
->url
));
497 ret
= get_credentials( ctx
, ctx
->smbldap_state
, config_option
,
498 dom
, &ctx
->user_dn
);
499 if ( !NT_STATUS_IS_OK(ret
) ) {
500 DEBUG(1,("idmap_ldap_db_init: Failed to get connection "
501 "credentials (%s)\n", nt_errstr(ret
)));
506 * Set the destructor on the context, so that resources are
507 * properly freed when the context is released.
509 talloc_set_destructor(ctx
, idmap_ldap_close_destructor
);
511 dom
->private_data
= ctx
;
513 ret
= verify_idpool(dom
);
514 if (!NT_STATUS_IS_OK(ret
)) {
515 DEBUG(1, ("idmap_ldap_db_init: failed to verify ID pool (%s)\n",
520 talloc_free(config_option
);
533 /* TODO: change this: This function cannot be called to modify a mapping,
534 * only set a new one */
536 static NTSTATUS
idmap_ldap_set_mapping(struct idmap_domain
*dom
,
537 const struct id_map
*map
)
541 struct idmap_ldap_context
*ctx
;
542 LDAPMessage
*entry
= NULL
;
543 LDAPMod
**mods
= NULL
;
550 /* Only do query if we are online */
551 if (idmap_is_offline()) {
552 return NT_STATUS_FILE_IS_OFFLINE
;
555 ctx
= talloc_get_type(dom
->private_data
, struct idmap_ldap_context
);
557 switch(map
->xid
.type
) {
559 type
= get_attr_key2string(sidmap_attr_list
,
560 LDAP_ATTR_UIDNUMBER
);
564 type
= get_attr_key2string(sidmap_attr_list
,
565 LDAP_ATTR_GIDNUMBER
);
569 return NT_STATUS_INVALID_PARAMETER
;
572 memctx
= talloc_new(ctx
);
574 DEBUG(0, ("Out of memory!\n"));
575 return NT_STATUS_NO_MEMORY
;
578 id_str
= talloc_asprintf(memctx
, "%lu", (unsigned long)map
->xid
.id
);
579 CHECK_ALLOC_DONE(id_str
);
581 sid
= talloc_strdup(memctx
, sid_string_talloc(memctx
, map
->sid
));
582 CHECK_ALLOC_DONE(sid
);
584 dn
= talloc_asprintf(memctx
, "%s=%s,%s",
585 get_attr_key2string(sidmap_attr_list
, LDAP_ATTR_SID
),
588 CHECK_ALLOC_DONE(dn
);
590 smbldap_set_mod(&mods
, LDAP_MOD_ADD
,
591 "objectClass", LDAP_OBJ_IDMAP_ENTRY
);
593 smbldap_make_mod(ctx
->smbldap_state
->ldap_struct
,
594 entry
, &mods
, type
, id_str
);
596 smbldap_make_mod(ctx
->smbldap_state
->ldap_struct
, entry
, &mods
,
597 get_attr_key2string(sidmap_attr_list
, LDAP_ATTR_SID
),
601 DEBUG(2, ("ERROR: No mods?\n"));
602 ret
= NT_STATUS_UNSUCCESSFUL
;
606 /* TODO: remove conflicting mappings! */
608 smbldap_set_mod(&mods
, LDAP_MOD_ADD
, "objectClass", LDAP_OBJ_SID_ENTRY
);
610 DEBUG(10, ("Set DN %s (%s -> %s)\n", dn
, sid
, id_str
));
612 rc
= smbldap_add(ctx
->smbldap_state
, dn
, mods
);
613 ldap_mods_free(mods
, True
);
615 if (rc
!= LDAP_SUCCESS
) {
616 char *ld_error
= NULL
;
617 ldap_get_option(ctx
->smbldap_state
->ldap_struct
,
618 LDAP_OPT_ERROR_STRING
, &ld_error
);
619 DEBUG(0,("ldap_set_mapping_internals: Failed to add %s to %lu "
620 "mapping [%s]\n", sid
,
621 (unsigned long)map
->xid
.id
, type
));
622 DEBUG(0, ("ldap_set_mapping_internals: Error was: %s (%s)\n",
623 ld_error
? ld_error
: "(NULL)", ldap_err2string (rc
)));
625 ldap_memfree(ld_error
);
627 ret
= NT_STATUS_UNSUCCESSFUL
;
631 DEBUG(10,("ldap_set_mapping: Successfully created mapping from %s to "
632 "%lu [%s]\n", sid
, (unsigned long)map
->xid
.id
, type
));
642 * Create a new mapping for an unmapped SID, also allocating a new ID.
643 * If possible, this should be run inside a transaction to make the
646 static NTSTATUS
idmap_ldap_new_mapping(struct idmap_domain
*dom
, struct id_map
*map
)
649 struct idmap_ldap_context
*ctx
;
651 ctx
= talloc_get_type(dom
->private_data
, struct idmap_ldap_context
);
653 ret
= idmap_rw_new_mapping(dom
, ctx
->rw_ops
, map
);
659 /* max number of ids requested per batch query */
660 #define IDMAP_LDAP_MAX_IDS 30
662 /**********************************
663 lookup a set of unix ids.
664 **********************************/
666 /* this function searches up to IDMAP_LDAP_MAX_IDS entries
667 * in maps for a match */
668 static struct id_map
*find_map_by_id(struct id_map
**maps
,
674 for (i
= 0; i
< IDMAP_LDAP_MAX_IDS
; i
++) {
675 if (maps
[i
] == NULL
) { /* end of the run */
678 if ((maps
[i
]->xid
.type
== type
) && (maps
[i
]->xid
.id
== id
)) {
686 static NTSTATUS
idmap_ldap_unixids_to_sids(struct idmap_domain
*dom
,
691 struct idmap_ldap_context
*ctx
;
692 LDAPMessage
*result
= NULL
;
693 LDAPMessage
*entry
= NULL
;
694 const char *uidNumber
;
695 const char *gidNumber
;
696 const char **attr_list
;
705 /* Only do query if we are online */
706 if (idmap_is_offline()) {
707 return NT_STATUS_FILE_IS_OFFLINE
;
710 ctx
= talloc_get_type(dom
->private_data
, struct idmap_ldap_context
);
712 memctx
= talloc_new(ctx
);
714 DEBUG(0, ("Out of memory!\n"));
715 return NT_STATUS_NO_MEMORY
;
718 uidNumber
= get_attr_key2string(idpool_attr_list
, LDAP_ATTR_UIDNUMBER
);
719 gidNumber
= get_attr_key2string(idpool_attr_list
, LDAP_ATTR_GIDNUMBER
);
721 attr_list
= get_attr_list(memctx
, sidmap_attr_list
);
724 /* if we are requested just one mapping use the simple filter */
726 filter
= talloc_asprintf(memctx
, "(&(objectClass=%s)(%s=%lu))",
727 LDAP_OBJ_IDMAP_ENTRY
,
728 (ids
[0]->xid
.type
==ID_TYPE_UID
)?uidNumber
:gidNumber
,
729 (unsigned long)ids
[0]->xid
.id
);
730 CHECK_ALLOC_DONE(filter
);
731 DEBUG(10, ("Filter: [%s]\n", filter
));
733 /* multiple mappings */
737 for (i
= 0; ids
[i
]; i
++) {
738 ids
[i
]->status
= ID_UNKNOWN
;
745 filter
= talloc_asprintf(memctx
,
746 "(&(objectClass=%s)(|",
747 LDAP_OBJ_IDMAP_ENTRY
);
748 CHECK_ALLOC_DONE(filter
);
751 for (i
= 0; (i
< IDMAP_LDAP_MAX_IDS
) && ids
[idx
]; i
++, idx
++) {
752 filter
= talloc_asprintf_append_buffer(filter
, "(%s=%lu)",
753 (ids
[idx
]->xid
.type
==ID_TYPE_UID
)?uidNumber
:gidNumber
,
754 (unsigned long)ids
[idx
]->xid
.id
);
755 CHECK_ALLOC_DONE(filter
);
757 filter
= talloc_asprintf_append_buffer(filter
, "))");
758 CHECK_ALLOC_DONE(filter
);
759 DEBUG(10, ("Filter: [%s]\n", filter
));
765 rc
= smbldap_search(ctx
->smbldap_state
, ctx
->suffix
, LDAP_SCOPE_SUBTREE
,
766 filter
, attr_list
, 0, &result
);
768 if (rc
!= LDAP_SUCCESS
) {
769 DEBUG(3,("Failure looking up ids (%s)\n", ldap_err2string(rc
)));
770 ret
= NT_STATUS_UNSUCCESSFUL
;
774 count
= ldap_count_entries(ctx
->smbldap_state
->ldap_struct
, result
);
777 DEBUG(10, ("NO SIDs found\n"));
780 for (i
= 0; i
< count
; i
++) {
787 if (i
== 0) { /* first entry */
788 entry
= ldap_first_entry(ctx
->smbldap_state
->ldap_struct
,
790 } else { /* following ones */
791 entry
= ldap_next_entry(ctx
->smbldap_state
->ldap_struct
,
795 DEBUG(2, ("ERROR: Unable to fetch ldap entries "
800 /* first check if the SID is present */
801 sidstr
= smbldap_talloc_single_attribute(
802 ctx
->smbldap_state
->ldap_struct
,
803 entry
, LDAP_ATTRIBUTE_SID
, memctx
);
804 if ( ! sidstr
) { /* no sid, skip entry */
805 DEBUG(2, ("WARNING SID not found on entry\n"));
809 /* now try to see if it is a uid, if not try with a gid
810 * (gid is more common, but in case both uidNumber and
811 * gidNumber are returned the SID is mapped to the uid
814 tmp
= smbldap_talloc_single_attribute(
815 ctx
->smbldap_state
->ldap_struct
,
816 entry
, uidNumber
, memctx
);
819 tmp
= smbldap_talloc_single_attribute(
820 ctx
->smbldap_state
->ldap_struct
,
821 entry
, gidNumber
, memctx
);
823 if ( ! tmp
) { /* wow very strange entry, how did it match ? */
824 DEBUG(5, ("Unprobable match on (%s), no uidNumber, "
825 "nor gidNumber returned\n", sidstr
));
830 id
= strtoul(tmp
, NULL
, 10);
831 if (!idmap_unix_id_is_in_range(id
, dom
)) {
832 DEBUG(5, ("Requested id (%u) out of range (%u - %u). "
834 dom
->low_id
, dom
->high_id
));
841 map
= find_map_by_id(&ids
[bidx
], type
, id
);
843 DEBUG(2, ("WARNING: couldn't match sid (%s) "
844 "with requested ids\n", sidstr
));
849 if ( ! string_to_sid(map
->sid
, sidstr
)) {
850 DEBUG(2, ("ERROR: Invalid SID on entry\n"));
855 if (map
->status
== ID_MAPPED
) {
856 DEBUG(1, ("WARNING: duplicate %s mapping in LDAP. "
857 "overwriting mapping %u -> %s with %u -> %s\n",
858 (type
== ID_TYPE_UID
) ? "UID" : "GID",
859 id
, sid_string_dbg(map
->sid
), id
, sidstr
));
865 map
->status
= ID_MAPPED
;
867 DEBUG(10, ("Mapped %s -> %lu (%d)\n", sid_string_dbg(map
->sid
),
868 (unsigned long)map
->xid
.id
, map
->xid
.type
));
871 /* free the ldap results */
873 ldap_msgfree(result
);
877 if (multi
&& ids
[idx
]) { /* still some values to map */
883 /* mark all unknwon/expired ones as unmapped */
884 for (i
= 0; ids
[i
]; i
++) {
885 if (ids
[i
]->status
!= ID_MAPPED
)
886 ids
[i
]->status
= ID_UNMAPPED
;
894 /**********************************
895 lookup a set of sids.
896 **********************************/
898 /* this function searches up to IDMAP_LDAP_MAX_IDS entries
899 * in maps for a match */
900 static struct id_map
*find_map_by_sid(struct id_map
**maps
, struct dom_sid
*sid
)
904 for (i
= 0; i
< IDMAP_LDAP_MAX_IDS
; i
++) {
905 if (maps
[i
] == NULL
) { /* end of the run */
908 if (dom_sid_equal(maps
[i
]->sid
, sid
)) {
916 static NTSTATUS
idmap_ldap_sids_to_unixids(struct idmap_domain
*dom
,
919 LDAPMessage
*entry
= NULL
;
922 struct idmap_ldap_context
*ctx
;
923 LDAPMessage
*result
= NULL
;
924 const char *uidNumber
;
925 const char *gidNumber
;
926 const char **attr_list
;
935 /* Only do query if we are online */
936 if (idmap_is_offline()) {
937 return NT_STATUS_FILE_IS_OFFLINE
;
940 ctx
= talloc_get_type(dom
->private_data
, struct idmap_ldap_context
);
942 memctx
= talloc_new(ctx
);
944 DEBUG(0, ("Out of memory!\n"));
945 return NT_STATUS_NO_MEMORY
;
948 uidNumber
= get_attr_key2string(idpool_attr_list
, LDAP_ATTR_UIDNUMBER
);
949 gidNumber
= get_attr_key2string(idpool_attr_list
, LDAP_ATTR_GIDNUMBER
);
951 attr_list
= get_attr_list(memctx
, sidmap_attr_list
);
954 /* if we are requested just one mapping use the simple filter */
956 filter
= talloc_asprintf(memctx
, "(&(objectClass=%s)(%s=%s))",
957 LDAP_OBJ_IDMAP_ENTRY
,
959 sid_string_talloc(memctx
, ids
[0]->sid
));
960 CHECK_ALLOC_DONE(filter
);
961 DEBUG(10, ("Filter: [%s]\n", filter
));
963 /* multiple mappings */
967 for (i
= 0; ids
[i
]; i
++) {
968 ids
[i
]->status
= ID_UNKNOWN
;
975 filter
= talloc_asprintf(memctx
,
976 "(&(objectClass=%s)(|",
977 LDAP_OBJ_IDMAP_ENTRY
);
978 CHECK_ALLOC_DONE(filter
);
981 for (i
= 0; (i
< IDMAP_LDAP_MAX_IDS
) && ids
[idx
]; i
++, idx
++) {
982 filter
= talloc_asprintf_append_buffer(filter
, "(%s=%s)",
984 sid_string_talloc(memctx
,
986 CHECK_ALLOC_DONE(filter
);
988 filter
= talloc_asprintf_append_buffer(filter
, "))");
989 CHECK_ALLOC_DONE(filter
);
990 DEBUG(10, ("Filter: [%s]", filter
));
996 rc
= smbldap_search(ctx
->smbldap_state
, ctx
->suffix
, LDAP_SCOPE_SUBTREE
,
997 filter
, attr_list
, 0, &result
);
999 if (rc
!= LDAP_SUCCESS
) {
1000 DEBUG(3,("Failure looking up sids (%s)\n",
1001 ldap_err2string(rc
)));
1002 ret
= NT_STATUS_UNSUCCESSFUL
;
1006 count
= ldap_count_entries(ctx
->smbldap_state
->ldap_struct
, result
);
1009 DEBUG(10, ("NO SIDs found\n"));
1012 for (i
= 0; i
< count
; i
++) {
1013 char *sidstr
= NULL
;
1020 if (i
== 0) { /* first entry */
1021 entry
= ldap_first_entry(ctx
->smbldap_state
->ldap_struct
,
1023 } else { /* following ones */
1024 entry
= ldap_next_entry(ctx
->smbldap_state
->ldap_struct
,
1028 DEBUG(2, ("ERROR: Unable to fetch ldap entries "
1033 /* first check if the SID is present */
1034 sidstr
= smbldap_talloc_single_attribute(
1035 ctx
->smbldap_state
->ldap_struct
,
1036 entry
, LDAP_ATTRIBUTE_SID
, memctx
);
1037 if ( ! sidstr
) { /* no sid ??, skip entry */
1038 DEBUG(2, ("WARNING SID not found on entry\n"));
1042 if ( ! string_to_sid(&sid
, sidstr
)) {
1043 DEBUG(2, ("ERROR: Invalid SID on entry\n"));
1044 TALLOC_FREE(sidstr
);
1048 map
= find_map_by_sid(&ids
[bidx
], &sid
);
1050 DEBUG(2, ("WARNING: couldn't find entry sid (%s) "
1052 TALLOC_FREE(sidstr
);
1056 /* now try to see if it is a uid, if not try with a gid
1057 * (gid is more common, but in case both uidNumber and
1058 * gidNumber are returned the SID is mapped to the uid
1061 tmp
= smbldap_talloc_single_attribute(
1062 ctx
->smbldap_state
->ldap_struct
,
1063 entry
, uidNumber
, memctx
);
1066 tmp
= smbldap_talloc_single_attribute(
1067 ctx
->smbldap_state
->ldap_struct
,
1068 entry
, gidNumber
, memctx
);
1070 if ( ! tmp
) { /* no ids ?? */
1071 DEBUG(5, ("no uidNumber, "
1072 "nor gidNumber attributes found\n"));
1073 TALLOC_FREE(sidstr
);
1077 id
= strtoul(tmp
, NULL
, 10);
1078 if (!idmap_unix_id_is_in_range(id
, dom
)) {
1079 DEBUG(5, ("Requested id (%u) out of range (%u - %u). "
1081 dom
->low_id
, dom
->high_id
));
1082 TALLOC_FREE(sidstr
);
1088 if (map
->status
== ID_MAPPED
) {
1089 DEBUG(1, ("WARNING: duplicate %s mapping in LDAP. "
1090 "overwriting mapping %s -> %u with %s -> %u\n",
1091 (type
== ID_TYPE_UID
) ? "UID" : "GID",
1092 sidstr
, map
->xid
.id
, sidstr
, id
));
1095 TALLOC_FREE(sidstr
);
1098 map
->xid
.type
= type
;
1100 map
->status
= ID_MAPPED
;
1102 DEBUG(10, ("Mapped %s -> %lu (%d)\n", sid_string_dbg(map
->sid
),
1103 (unsigned long)map
->xid
.id
, map
->xid
.type
));
1106 /* free the ldap results */
1108 ldap_msgfree(result
);
1112 if (multi
&& ids
[idx
]) { /* still some values to map */
1117 * try to create new mappings for unmapped sids
1119 for (i
= 0; ids
[i
]; i
++) {
1120 if (ids
[i
]->status
!= ID_MAPPED
) {
1121 ids
[i
]->status
= ID_UNMAPPED
;
1122 if (ids
[i
]->sid
!= NULL
) {
1123 ret
= idmap_ldap_new_mapping(dom
, ids
[i
]);
1124 if (!NT_STATUS_IS_OK(ret
)) {
1134 talloc_free(memctx
);
1138 /**********************************
1139 Close the idmap ldap instance
1140 **********************************/
1142 static struct idmap_methods idmap_ldap_methods
= {
1144 .init
= idmap_ldap_db_init
,
1145 .unixids_to_sids
= idmap_ldap_unixids_to_sids
,
1146 .sids_to_unixids
= idmap_ldap_sids_to_unixids
,
1147 .allocate_id
= idmap_ldap_allocate_id
,
1150 NTSTATUS
idmap_ldap_init(void);
1151 NTSTATUS
idmap_ldap_init(void)
1153 return smb_register_idmap(SMB_IDMAP_INTERFACE_VERSION
, "ldap",
1154 &idmap_ldap_methods
);