2 Unix SMB/CIFS implementation.
4 Winbind daemon - user related functions
6 Copyright (C) Tim Potter 2000
7 Copyright (C) Jeremy Allison 2001.
8 Copyright (C) Gerald (Jerry) Carter 2003.
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
29 #define DBGC_CLASS DBGC_WINBIND
31 extern userdom_struct current_user_info
;
33 /* Fill a pwent structure with information we have obtained */
35 static BOOL
winbindd_fill_pwent(char *dom_name
, char *user_name
,
36 DOM_SID
*user_sid
, DOM_SID
*group_sid
,
37 char *full_name
, struct winbindd_pw
*pw
)
39 fstring output_username
;
44 if (!pw
|| !dom_name
|| !user_name
)
47 /* Resolve the uid number */
49 if (!NT_STATUS_IS_OK(idmap_sid_to_uid(user_sid
, &pw
->pw_uid
, 0))) {
50 DEBUG(1, ("error getting user id for sid %s\n", sid_to_string(sid_string
, user_sid
)));
54 /* Resolve the gid number */
56 if (!NT_STATUS_IS_OK(idmap_sid_to_gid(group_sid
, &pw
->pw_gid
, 0))) {
57 DEBUG(1, ("error getting group id for sid %s\n", sid_to_string(sid_string
, group_sid
)));
61 strlower_m(user_name
);
65 fill_domain_username(output_username
, dom_name
, user_name
);
67 safe_strcpy(pw
->pw_name
, output_username
, sizeof(pw
->pw_name
) - 1);
69 /* Full name (gecos) */
71 safe_strcpy(pw
->pw_gecos
, full_name
, sizeof(pw
->pw_gecos
) - 1);
73 /* Home directory and shell - use template config parameters. The
74 defaults are /tmp for the home directory and /bin/false for
77 /* The substitution of %U and %D in the 'template homedir' is done
78 by alloc_sub_specified() below. */
80 fstrcpy(current_user_info
.domain
, dom_name
);
82 homedir
= alloc_sub_specified(lp_template_homedir(), user_name
, dom_name
, pw
->pw_uid
, pw
->pw_gid
);
87 safe_strcpy(pw
->pw_dir
, homedir
, sizeof(pw
->pw_dir
) - 1);
91 shell
= alloc_sub_specified(lp_template_shell(), user_name
, dom_name
, pw
->pw_uid
, pw
->pw_gid
);
96 safe_strcpy(pw
->pw_shell
, shell
,
97 sizeof(pw
->pw_shell
) - 1);
101 /* Password - set to "x" as we can't generate anything useful here.
102 Authentication can be done using the pam_winbind module. */
104 safe_strcpy(pw
->pw_passwd
, "x", sizeof(pw
->pw_passwd
) - 1);
109 /* Wrapper for domain->methods->query_user, only on the parent->child pipe */
111 enum winbindd_result
winbindd_dual_userinfo(struct winbindd_domain
*domain
,
112 struct winbindd_cli_state
*state
)
115 WINBIND_USERINFO user_info
;
118 /* Ensure null termination */
119 state
->request
.data
.sid
[sizeof(state
->request
.data
.sid
)-1]='\0';
121 DEBUG(3, ("[%5lu]: lookupsid %s\n", (unsigned long)state
->pid
,
122 state
->request
.data
.sid
));
124 if (!string_to_sid(&sid
, state
->request
.data
.sid
)) {
125 DEBUG(5, ("%s not a SID\n", state
->request
.data
.sid
));
126 return WINBINDD_ERROR
;
129 status
= domain
->methods
->query_user(domain
, state
->mem_ctx
,
131 if (!NT_STATUS_IS_OK(status
)) {
132 DEBUG(1, ("error getting user info for sid %s\n",
133 sid_string_static(&sid
)));
134 return WINBINDD_ERROR
;
137 fstrcpy(state
->response
.data
.user_info
.acct_name
, user_info
.acct_name
);
138 fstrcpy(state
->response
.data
.user_info
.full_name
, user_info
.full_name
);
139 if (!sid_peek_check_rid(&domain
->sid
, &user_info
.group_sid
,
140 &state
->response
.data
.user_info
.group_rid
)) {
141 DEBUG(1, ("Could not extract group rid out of %s\n",
142 sid_string_static(&sid
)));
143 return WINBINDD_ERROR
;
149 struct getpwsid_state
{
150 struct winbindd_cli_state
*state
;
151 struct winbindd_domain
*domain
;
160 static void getpwsid_queryuser_recv(void *private_data
, BOOL success
,
161 const char *acct_name
,
162 const char *full_name
, uint32 group_rid
);
163 static void getpwsid_sid2uid_recv(void *private_data
, BOOL success
, uid_t uid
);
164 static void getpwsid_sid2gid_recv(void *private_data
, BOOL success
, gid_t gid
);
166 static void winbindd_getpwsid(struct winbindd_cli_state
*state
,
169 struct getpwsid_state
*s
;
171 s
= TALLOC_P(state
->mem_ctx
, struct getpwsid_state
);
173 DEBUG(0, ("talloc failed\n"));
178 s
->domain
= find_domain_from_sid_noinit(sid
);
179 if (s
->domain
== NULL
) {
180 DEBUG(3, ("Could not find domain for sid %s\n",
181 sid_string_static(sid
)));
185 sid_copy(&s
->user_sid
, sid
);
187 query_user_async(s
->state
->mem_ctx
, s
->domain
, sid
,
188 getpwsid_queryuser_recv
, s
);
192 request_error(state
);
195 static void getpwsid_queryuser_recv(void *private_data
, BOOL success
,
196 const char *acct_name
,
197 const char *full_name
, uint32 group_rid
)
199 struct getpwsid_state
*s
=
200 talloc_get_type_abort(private_data
, struct getpwsid_state
);
203 DEBUG(5, ("Could not query user %s\\%s\n", s
->domain
->name
,
205 request_error(s
->state
);
209 s
->username
= talloc_strdup(s
->state
->mem_ctx
, acct_name
);
210 s
->fullname
= talloc_strdup(s
->state
->mem_ctx
, full_name
);
211 sid_copy(&s
->group_sid
, &s
->domain
->sid
);
212 sid_append_rid(&s
->group_sid
, group_rid
);
214 winbindd_sid2uid_async(s
->state
->mem_ctx
, &s
->user_sid
,
215 getpwsid_sid2uid_recv
, s
);
218 static void getpwsid_sid2uid_recv(void *private_data
, BOOL success
, uid_t uid
)
220 struct getpwsid_state
*s
=
221 talloc_get_type_abort(private_data
, struct getpwsid_state
);
224 DEBUG(5, ("Could not query user's %s\\%s uid\n",
225 s
->domain
->name
, s
->username
));
226 request_error(s
->state
);
231 winbindd_sid2gid_async(s
->state
->mem_ctx
, &s
->group_sid
,
232 getpwsid_sid2gid_recv
, s
);
235 static void getpwsid_sid2gid_recv(void *private_data
, BOOL success
, gid_t gid
)
237 struct getpwsid_state
*s
=
238 talloc_get_type_abort(private_data
, struct getpwsid_state
);
239 struct winbindd_pw
*pw
;
240 fstring output_username
;
245 DEBUG(5, ("Could not query user's %s\\%s\n gid",
246 s
->domain
->name
, s
->username
));
252 pw
= &s
->state
->response
.data
.pw
;
255 fill_domain_username(output_username
, s
->domain
->name
, s
->username
);
256 safe_strcpy(pw
->pw_name
, output_username
, sizeof(pw
->pw_name
) - 1);
257 safe_strcpy(pw
->pw_gecos
, s
->fullname
, sizeof(pw
->pw_gecos
) - 1);
259 /* Home directory and shell - use template config parameters. The
260 defaults are /tmp for the home directory and /bin/false for
263 /* The substitution of %U and %D in the 'template homedir' is done
264 by alloc_sub_specified() below. */
266 fstrcpy(current_user_info
.domain
, s
->domain
->name
);
268 homedir
= alloc_sub_specified(lp_template_homedir(), s
->username
,
269 s
->domain
->name
, pw
->pw_uid
, pw
->pw_gid
);
270 if (homedir
== NULL
) {
271 DEBUG(5, ("Could not compose homedir\n"));
274 safe_strcpy(pw
->pw_dir
, homedir
, sizeof(pw
->pw_dir
) - 1);
277 shell
= alloc_sub_specified(lp_template_shell(), s
->username
,
278 s
->domain
->name
, pw
->pw_uid
, pw
->pw_gid
);
280 DEBUG(5, ("Could not compose shell\n"));
283 safe_strcpy(pw
->pw_shell
, shell
, sizeof(pw
->pw_shell
) - 1);
286 /* Password - set to "x" as we can't generate anything useful here.
287 Authentication can be done using the pam_winbind module. */
289 safe_strcpy(pw
->pw_passwd
, "x", sizeof(pw
->pw_passwd
) - 1);
291 request_ok(s
->state
);
295 request_error(s
->state
);
298 /* Return a password structure from a username. */
300 static void getpwnam_name2sid_recv(void *private_data
, BOOL success
,
301 const DOM_SID
*sid
, enum SID_NAME_USE type
);
303 void winbindd_getpwnam(struct winbindd_cli_state
*state
)
305 struct winbindd_domain
*domain
;
306 fstring domname
, username
;
308 /* Ensure null termination */
309 state
->request
.data
.username
[sizeof(state
->request
.data
.username
)-1]='\0';
311 DEBUG(3, ("[%5lu]: getpwnam %s\n", (unsigned long)state
->pid
,
312 state
->request
.data
.username
));
314 if (!parse_domain_user(state
->request
.data
.username
, domname
,
316 DEBUG(0, ("Could not parse domain user: %s\n",
317 state
->request
.data
.username
));
318 request_error(state
);
322 /* Get info for the domain */
324 domain
= find_domain_from_name(domname
);
326 if (domain
== NULL
) {
327 DEBUG(7, ("could not find domain entry for domain %s\n",
329 request_error(state
);
333 if ( strequal(domname
, lp_workgroup()) && lp_winbind_trusted_domains_only() ) {
334 DEBUG(7,("winbindd_getpwnam: My domain -- rejecting getpwnam() for %s\\%s.\n",
336 request_error(state
);
340 /* Get rid and name type from name. The following costs 1 packet */
342 winbindd_lookupname_async(state
->mem_ctx
, domname
, username
,
343 getpwnam_name2sid_recv
, state
);
346 static void getpwnam_name2sid_recv(void *private_data
, BOOL success
,
347 const DOM_SID
*sid
, enum SID_NAME_USE type
)
349 struct winbindd_cli_state
*state
= private_data
;
352 DEBUG(5, ("Could not lookup name for user %s\n",
353 state
->request
.data
.username
));
354 request_error(state
);
358 if ((type
!= SID_NAME_USER
) && (type
!= SID_NAME_COMPUTER
)) {
359 DEBUG(5, ("%s is not a user\n", state
->request
.data
.username
));
360 request_error(state
);
364 winbindd_getpwsid(state
, sid
);
367 /* Return a password structure given a uid number */
369 void winbindd_getpwuid(struct winbindd_cli_state
*state
)
374 /* Bug out if the uid isn't in the winbind range */
376 if ((state
->request
.data
.uid
< server_state
.uid_low
) ||
377 (state
->request
.data
.uid
> server_state
.uid_high
)) {
378 request_error(state
);
382 DEBUG(3, ("[%5lu]: getpwuid %lu\n", (unsigned long)state
->pid
,
383 (unsigned long)state
->request
.data
.uid
));
385 status
= idmap_uid_to_sid(&user_sid
, state
->request
.data
.uid
,
386 ID_QUERY_ONLY
| ID_CACHE_ONLY
);
388 if (!NT_STATUS_IS_OK(status
)) {
389 DEBUG(5, ("Could not find SID for uid %lu\n",
390 (unsigned long)state
->request
.data
.uid
));
391 request_error(state
);
395 winbindd_getpwsid(state
, &user_sid
);
399 * set/get/endpwent functions
402 /* Rewind file pointer for ntdom passwd database */
404 static BOOL
winbindd_setpwent_internal(struct winbindd_cli_state
*state
)
406 struct winbindd_domain
*domain
;
408 DEBUG(3, ("[%5lu]: setpwent\n", (unsigned long)state
->pid
));
410 /* Check user has enabled this */
412 if (!lp_winbind_enum_users()) {
416 /* Free old static data if it exists */
418 if (state
->getpwent_state
!= NULL
) {
419 free_getent_state(state
->getpwent_state
);
420 state
->getpwent_state
= NULL
;
424 /* add any local users we have */
426 if ( (domain_state
= (struct getent_state
*)malloc(sizeof(struct getent_state
))) == NULL
)
429 ZERO_STRUCTP(domain_state
);
431 /* Add to list of open domains */
433 DLIST_ADD(state
->getpwent_state
, domain_state
);
436 /* Create sam pipes for each domain we know about */
438 for(domain
= domain_list(); domain
!= NULL
; domain
= domain
->next
) {
439 struct getent_state
*domain_state
;
442 /* don't add our domaina if we are a PDC or if we
443 are a member of a Samba domain */
445 if ( (IS_DC
|| lp_winbind_trusted_domains_only())
446 && strequal(domain
->name
, lp_workgroup()) )
451 /* Create a state record for this domain */
453 if ((domain_state
= SMB_MALLOC_P(struct getent_state
)) == NULL
) {
454 DEBUG(0, ("malloc failed\n"));
458 ZERO_STRUCTP(domain_state
);
460 fstrcpy(domain_state
->domain_name
, domain
->name
);
462 /* Add to list of open domains */
464 DLIST_ADD(state
->getpwent_state
, domain_state
);
467 state
->getpwent_initialized
= True
;
471 void winbindd_setpwent(struct winbindd_cli_state
*state
)
473 if (winbindd_setpwent_internal(state
)) {
476 request_error(state
);
480 /* Close file pointer to ntdom passwd database */
482 void winbindd_endpwent(struct winbindd_cli_state
*state
)
484 DEBUG(3, ("[%5lu]: endpwent\n", (unsigned long)state
->pid
));
486 free_getent_state(state
->getpwent_state
);
487 state
->getpwent_initialized
= False
;
488 state
->getpwent_state
= NULL
;
492 /* Get partial list of domain users for a domain. We fill in the sam_entries,
493 and num_sam_entries fields with domain user information. The dispinfo_ndx
494 field is incremented to the index of the next user to fetch. Return True if
495 some users were returned, False otherwise. */
497 static BOOL
get_sam_user_entries(struct getent_state
*ent
, TALLOC_CTX
*mem_ctx
)
501 WINBIND_USERINFO
*info
;
502 struct getpwent_user
*name_list
= NULL
;
504 struct winbindd_domain
*domain
;
505 struct winbindd_methods
*methods
;
508 if (ent
->num_sam_entries
)
511 if (!(domain
= find_domain_from_name(ent
->domain_name
))) {
512 DEBUG(3, ("no such domain %s in get_sam_user_entries\n",
517 methods
= domain
->methods
;
519 /* Free any existing user info */
521 SAFE_FREE(ent
->sam_entries
);
522 ent
->num_sam_entries
= 0;
524 /* Call query_user_list to get a list of usernames and user rids */
528 status
= methods
->query_user_list(domain
, mem_ctx
, &num_entries
,
532 struct getpwent_user
*tnl
;
534 tnl
= SMB_REALLOC_ARRAY(name_list
, struct getpwent_user
, ent
->num_sam_entries
+ num_entries
);
537 DEBUG(0,("get_sam_user_entries realloc failed.\n"));
538 SAFE_FREE(name_list
);
544 for (i
= 0; i
< num_entries
; i
++) {
545 /* Store account name and gecos */
546 if (!info
[i
].acct_name
) {
547 fstrcpy(name_list
[ent
->num_sam_entries
+ i
].name
, "");
549 fstrcpy(name_list
[ent
->num_sam_entries
+ i
].name
,
552 if (!info
[i
].full_name
) {
553 fstrcpy(name_list
[ent
->num_sam_entries
+ i
].gecos
, "");
555 fstrcpy(name_list
[ent
->num_sam_entries
+ i
].gecos
,
559 /* User and group ids */
560 sid_copy(&name_list
[ent
->num_sam_entries
+i
].user_sid
,
562 sid_copy(&name_list
[ent
->num_sam_entries
+i
].group_sid
,
566 ent
->num_sam_entries
+= num_entries
;
568 /* Fill in remaining fields */
570 ent
->sam_entries
= name_list
;
571 ent
->sam_entry_index
= 0;
572 result
= ent
->num_sam_entries
> 0;
579 /* Fetch next passwd entry from ntdom database */
581 #define MAX_GETPWENT_USERS 500
583 void winbindd_getpwent(struct winbindd_cli_state
*state
)
585 struct getent_state
*ent
;
586 struct winbindd_pw
*user_list
;
587 int num_users
, user_list_ndx
= 0, i
;
589 DEBUG(3, ("[%5lu]: getpwent\n", (unsigned long)state
->pid
));
591 /* Check user has enabled this */
593 if (!lp_winbind_enum_users()) {
594 request_error(state
);
598 /* Allocate space for returning a chunk of users */
600 num_users
= MIN(MAX_GETPWENT_USERS
, state
->request
.data
.num_entries
);
602 if ((state
->response
.extra_data
= SMB_MALLOC_ARRAY(struct winbindd_pw
, num_users
)) == NULL
) {
603 request_error(state
);
607 memset(state
->response
.extra_data
, 0, num_users
*
608 sizeof(struct winbindd_pw
));
610 user_list
= (struct winbindd_pw
*)state
->response
.extra_data
;
612 if (!state
->getpwent_initialized
)
613 winbindd_setpwent_internal(state
);
615 if (!(ent
= state
->getpwent_state
)) {
616 request_error(state
);
620 /* Start sending back users */
622 for (i
= 0; i
< num_users
; i
++) {
623 struct getpwent_user
*name_list
= NULL
;
626 /* Do we need to fetch another chunk of users? */
628 if (ent
->num_sam_entries
== ent
->sam_entry_index
) {
631 !get_sam_user_entries(ent
, state
->mem_ctx
)) {
632 struct getent_state
*next_ent
;
634 /* Free state information for this domain */
636 SAFE_FREE(ent
->sam_entries
);
638 next_ent
= ent
->next
;
639 DLIST_REMOVE(state
->getpwent_state
, ent
);
645 /* No more domains */
651 name_list
= ent
->sam_entries
;
653 /* Lookup user info */
655 result
= winbindd_fill_pwent(
657 name_list
[ent
->sam_entry_index
].name
,
658 &name_list
[ent
->sam_entry_index
].user_sid
,
659 &name_list
[ent
->sam_entry_index
].group_sid
,
660 name_list
[ent
->sam_entry_index
].gecos
,
661 &user_list
[user_list_ndx
]);
663 ent
->sam_entry_index
++;
665 /* Add user to return list */
670 state
->response
.data
.num_entries
++;
671 state
->response
.length
+=
672 sizeof(struct winbindd_pw
);
675 DEBUG(1, ("could not lookup domain user %s\n",
676 name_list
[ent
->sam_entry_index
].name
));
681 if (user_list_ndx
> 0)
684 request_error(state
);
687 /* List domain users without mapping to unix ids */
689 void winbindd_list_users(struct winbindd_cli_state
*state
)
691 struct winbindd_domain
*domain
;
692 WINBIND_USERINFO
*info
;
693 const char *which_domain
;
694 uint32 num_entries
= 0, total_entries
= 0;
695 char *ted
, *extra_data
= NULL
;
696 int extra_data_len
= 0;
697 enum winbindd_result rv
= WINBINDD_ERROR
;
699 DEBUG(3, ("[%5lu]: list users\n", (unsigned long)state
->pid
));
701 /* Ensure null termination */
702 state
->request
.domain_name
[sizeof(state
->request
.domain_name
)-1]='\0';
703 which_domain
= state
->request
.domain_name
;
705 /* Enumerate over trusted domains */
707 for (domain
= domain_list(); domain
; domain
= domain
->next
) {
709 struct winbindd_methods
*methods
;
712 /* if we have a domain name restricting the request and this
713 one in the list doesn't match, then just bypass the remainder
716 if ( *which_domain
&& !strequal(which_domain
, domain
->name
) )
719 methods
= domain
->methods
;
721 /* Query display info */
722 status
= methods
->query_user_list(domain
, state
->mem_ctx
,
723 &num_entries
, &info
);
725 if (num_entries
== 0)
728 /* Allocate some memory for extra data */
729 total_entries
+= num_entries
;
731 ted
= SMB_REALLOC(extra_data
, sizeof(fstring
) * total_entries
);
734 DEBUG(0,("failed to enlarge buffer!\n"));
735 SAFE_FREE(extra_data
);
740 /* Pack user list into extra data fields */
742 for (i
= 0; i
< num_entries
; i
++) {
743 fstring acct_name
, name
;
745 if (!info
[i
].acct_name
) {
746 fstrcpy(acct_name
, "");
748 fstrcpy(acct_name
, info
[i
].acct_name
);
751 fill_domain_username(name
, domain
->name
, acct_name
);
753 /* Append to extra data */
754 memcpy(&extra_data
[extra_data_len
], name
,
756 extra_data_len
+= strlen(name
);
757 extra_data
[extra_data_len
++] = ',';
761 /* Assign extra_data fields in response structure */
764 extra_data
[extra_data_len
- 1] = '\0';
765 state
->response
.extra_data
= extra_data
;
766 state
->response
.length
+= extra_data_len
;
769 /* No domains responded but that's still OK so don't return an
776 if (rv
== WINBINDD_OK
)
779 request_error(state
);