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
, 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
);