2 Unix SMB/CIFS implementation.
3 Authentication utility functions
4 Copyright (C) Andrew Tridgell 1992-1998
5 Copyright (C) Andrew Bartlett 2001
6 Copyright (C) Jeremy Allison 2000-2001
7 Copyright (C) Rafal Szczesniak 2002
8 Copyright (C) Volker Lendecke 2006
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.
28 #define DBGC_CLASS DBGC_AUTH
30 static struct nt_user_token *create_local_nt_token(TALLOC_CTX *mem_ctx,
31 const DOM_SID *user_sid,
32 const DOM_SID *group_sid,
35 const DOM_SID *groupsids);
37 /****************************************************************************
38 Create a UNIX user on demand.
39 ****************************************************************************/
41 static int smb_create_user(const char *domain, const char *unix_username, const char *homedir)
46 pstrcpy(add_script, lp_adduser_script());
49 all_string_sub(add_script, "%u", unix_username, sizeof(pstring));
51 all_string_sub(add_script, "%D", domain, sizeof(pstring));
53 all_string_sub(add_script, "%H", homedir, sizeof(pstring));
54 ret = smbrun(add_script,NULL);
56 DEBUG(ret ? 0 : 3,("smb_create_user: Running the command `%s' gave %d\n",add_script,ret));
60 /****************************************************************************
61 Create an auth_usersupplied_data structure
62 ****************************************************************************/
64 static NTSTATUS make_user_info(auth_usersupplied_info **user_info,
66 const char *internal_username,
67 const char *client_domain,
69 const char *wksta_name,
70 DATA_BLOB *lm_pwd, DATA_BLOB *nt_pwd,
71 DATA_BLOB *lm_interactive_pwd, DATA_BLOB *nt_interactive_pwd,
76 DEBUG(5,("attempting to make a user_info for %s (%s)\n", internal_username, smb_name));
78 *user_info = SMB_MALLOC_P(auth_usersupplied_info);
80 DEBUG(0,("malloc failed for user_info (size %lu)\n", (unsigned long)sizeof(*user_info)));
81 return NT_STATUS_NO_MEMORY;
84 ZERO_STRUCTP(*user_info);
86 DEBUG(5,("making strings for %s's user_info struct\n", internal_username));
88 (*user_info)->smb_name = SMB_STRDUP(smb_name);
89 if ((*user_info)->smb_name == NULL) {
90 free_user_info(user_info);
91 return NT_STATUS_NO_MEMORY;
94 (*user_info)->internal_username = SMB_STRDUP(internal_username);
95 if ((*user_info)->internal_username == NULL) {
96 free_user_info(user_info);
97 return NT_STATUS_NO_MEMORY;
100 (*user_info)->domain = SMB_STRDUP(domain);
101 if ((*user_info)->domain == NULL) {
102 free_user_info(user_info);
103 return NT_STATUS_NO_MEMORY;
106 (*user_info)->client_domain = SMB_STRDUP(client_domain);
107 if ((*user_info)->client_domain == NULL) {
108 free_user_info(user_info);
109 return NT_STATUS_NO_MEMORY;
112 (*user_info)->wksta_name = SMB_STRDUP(wksta_name);
113 if ((*user_info)->wksta_name == NULL) {
114 free_user_info(user_info);
115 return NT_STATUS_NO_MEMORY;
118 DEBUG(5,("making blobs for %s's user_info struct\n", internal_username));
121 (*user_info)->lm_resp = data_blob(lm_pwd->data, lm_pwd->length);
123 (*user_info)->nt_resp = data_blob(nt_pwd->data, nt_pwd->length);
124 if (lm_interactive_pwd)
125 (*user_info)->lm_interactive_pwd = data_blob(lm_interactive_pwd->data, lm_interactive_pwd->length);
126 if (nt_interactive_pwd)
127 (*user_info)->nt_interactive_pwd = data_blob(nt_interactive_pwd->data, nt_interactive_pwd->length);
130 (*user_info)->plaintext_password = data_blob(plaintext->data, plaintext->length);
132 (*user_info)->encrypted = encrypted;
134 (*user_info)->logon_parameters = 0;
136 DEBUG(10,("made an %sencrypted user_info for %s (%s)\n", encrypted ? "":"un" , internal_username, smb_name));
141 /****************************************************************************
142 Create an auth_usersupplied_data structure after appropriate mapping.
143 ****************************************************************************/
145 NTSTATUS make_user_info_map(auth_usersupplied_info **user_info,
146 const char *smb_name,
147 const char *client_domain,
148 const char *wksta_name,
149 DATA_BLOB *lm_pwd, DATA_BLOB *nt_pwd,
150 DATA_BLOB *lm_interactive_pwd, DATA_BLOB *nt_interactive_pwd,
151 DATA_BLOB *plaintext,
155 fstring internal_username;
156 fstrcpy(internal_username, smb_name);
157 map_username(internal_username);
159 DEBUG(5, ("make_user_info_map: Mapping user [%s]\\[%s] from workstation [%s]\n",
160 client_domain, smb_name, wksta_name));
162 /* don't allow "" as a domain, fixes a Win9X bug
163 where it doens't supply a domain for logon script
164 'net use' commands. */
166 if ( *client_domain )
167 domain = client_domain;
169 domain = lp_workgroup();
171 /* do what win2k does. Always map unknown domains to our own
172 and let the "passdb backend" handle unknown users. */
174 if ( !is_trusted_domain(domain) && !strequal(domain, get_global_sam_name()) )
175 domain = my_sam_name();
177 /* we know that it is a trusted domain (and we are allowing them) or it is our domain */
179 return make_user_info(user_info, smb_name, internal_username,
180 client_domain, domain, wksta_name,
182 lm_interactive_pwd, nt_interactive_pwd,
183 plaintext, encrypted);
186 /****************************************************************************
187 Create an auth_usersupplied_data, making the DATA_BLOBs here.
188 Decrypt and encrypt the passwords.
189 ****************************************************************************/
191 BOOL make_user_info_netlogon_network(auth_usersupplied_info **user_info,
192 const char *smb_name,
193 const char *client_domain,
194 const char *wksta_name,
195 uint32 logon_parameters,
196 const uchar *lm_network_pwd,
198 const uchar *nt_network_pwd,
203 DATA_BLOB lm_blob = data_blob(lm_network_pwd, lm_pwd_len);
204 DATA_BLOB nt_blob = data_blob(nt_network_pwd, nt_pwd_len);
206 status = make_user_info_map(user_info,
207 smb_name, client_domain,
209 lm_pwd_len ? &lm_blob : NULL,
210 nt_pwd_len ? &nt_blob : NULL,
214 if (NT_STATUS_IS_OK(status)) {
215 (*user_info)->logon_parameters = logon_parameters;
217 ret = NT_STATUS_IS_OK(status) ? True : False;
219 data_blob_free(&lm_blob);
220 data_blob_free(&nt_blob);
224 /****************************************************************************
225 Create an auth_usersupplied_data, making the DATA_BLOBs here.
226 Decrypt and encrypt the passwords.
227 ****************************************************************************/
229 BOOL make_user_info_netlogon_interactive(auth_usersupplied_info **user_info,
230 const char *smb_name,
231 const char *client_domain,
232 const char *wksta_name,
233 uint32 logon_parameters,
235 const uchar lm_interactive_pwd[16],
236 const uchar nt_interactive_pwd[16],
237 const uchar *dc_sess_key)
241 unsigned char local_lm_response[24];
242 unsigned char local_nt_response[24];
243 unsigned char key[16];
246 memcpy(key, dc_sess_key, 8);
248 if (lm_interactive_pwd)
249 memcpy(lm_pwd, lm_interactive_pwd, sizeof(lm_pwd));
251 if (nt_interactive_pwd)
252 memcpy(nt_pwd, nt_interactive_pwd, sizeof(nt_pwd));
254 #ifdef DEBUG_PASSWORD
256 dump_data(100, (char *)key, sizeof(key));
258 DEBUG(100,("lm owf password:"));
259 dump_data(100, lm_pwd, sizeof(lm_pwd));
261 DEBUG(100,("nt owf password:"));
262 dump_data(100, nt_pwd, sizeof(nt_pwd));
265 if (lm_interactive_pwd)
266 SamOEMhash((uchar *)lm_pwd, key, sizeof(lm_pwd));
268 if (nt_interactive_pwd)
269 SamOEMhash((uchar *)nt_pwd, key, sizeof(nt_pwd));
271 #ifdef DEBUG_PASSWORD
272 DEBUG(100,("decrypt of lm owf password:"));
273 dump_data(100, lm_pwd, sizeof(lm_pwd));
275 DEBUG(100,("decrypt of nt owf password:"));
276 dump_data(100, nt_pwd, sizeof(nt_pwd));
279 if (lm_interactive_pwd)
280 SMBOWFencrypt((const unsigned char *)lm_pwd, chal,
283 if (nt_interactive_pwd)
284 SMBOWFencrypt((const unsigned char *)nt_pwd, chal,
287 /* Password info paranoia */
293 DATA_BLOB local_lm_blob;
294 DATA_BLOB local_nt_blob;
296 DATA_BLOB lm_interactive_blob;
297 DATA_BLOB nt_interactive_blob;
299 if (lm_interactive_pwd) {
300 local_lm_blob = data_blob(local_lm_response,
301 sizeof(local_lm_response));
302 lm_interactive_blob = data_blob(lm_pwd,
307 if (nt_interactive_pwd) {
308 local_nt_blob = data_blob(local_nt_response,
309 sizeof(local_nt_response));
310 nt_interactive_blob = data_blob(nt_pwd,
315 nt_status = make_user_info_map(
317 smb_name, client_domain, wksta_name,
318 lm_interactive_pwd ? &local_lm_blob : NULL,
319 nt_interactive_pwd ? &local_nt_blob : NULL,
320 lm_interactive_pwd ? &lm_interactive_blob : NULL,
321 nt_interactive_pwd ? &nt_interactive_blob : NULL,
324 if (NT_STATUS_IS_OK(nt_status)) {
325 (*user_info)->logon_parameters = logon_parameters;
328 ret = NT_STATUS_IS_OK(nt_status) ? True : False;
329 data_blob_free(&local_lm_blob);
330 data_blob_free(&local_nt_blob);
331 data_blob_free(&lm_interactive_blob);
332 data_blob_free(&nt_interactive_blob);
338 /****************************************************************************
339 Create an auth_usersupplied_data structure
340 ****************************************************************************/
342 BOOL make_user_info_for_reply(auth_usersupplied_info **user_info,
343 const char *smb_name,
344 const char *client_domain,
346 DATA_BLOB plaintext_password)
349 DATA_BLOB local_lm_blob;
350 DATA_BLOB local_nt_blob;
351 NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
354 * Not encrypted - do so.
357 DEBUG(5,("make_user_info_for_reply: User passwords not in encrypted "
360 if (plaintext_password.data) {
361 unsigned char local_lm_response[24];
363 #ifdef DEBUG_PASSWORD
364 DEBUG(10,("Unencrypted password (len %d):\n",
365 (int)plaintext_password.length));
366 dump_data(100, (const char *)plaintext_password.data,
367 plaintext_password.length);
370 SMBencrypt( (const char *)plaintext_password.data,
371 (const uchar*)chal, local_lm_response);
372 local_lm_blob = data_blob(local_lm_response, 24);
374 /* We can't do an NT hash here, as the password needs to be
376 local_nt_blob = data_blob(NULL, 0);
379 local_lm_blob = data_blob(NULL, 0);
380 local_nt_blob = data_blob(NULL, 0);
383 ret = make_user_info_map(
384 user_info, smb_name, client_domain,
385 get_remote_machine_name(),
386 local_lm_blob.data ? &local_lm_blob : NULL,
387 local_nt_blob.data ? &local_nt_blob : NULL,
389 plaintext_password.data ? &plaintext_password : NULL,
392 data_blob_free(&local_lm_blob);
393 return NT_STATUS_IS_OK(ret) ? True : False;
396 /****************************************************************************
397 Create an auth_usersupplied_data structure
398 ****************************************************************************/
400 NTSTATUS make_user_info_for_reply_enc(auth_usersupplied_info **user_info,
401 const char *smb_name,
402 const char *client_domain,
403 DATA_BLOB lm_resp, DATA_BLOB nt_resp)
405 return make_user_info_map(user_info, smb_name,
407 get_remote_machine_name(),
408 lm_resp.data ? &lm_resp : NULL,
409 nt_resp.data ? &nt_resp : NULL,
414 /****************************************************************************
415 Create a guest user_info blob, for anonymous authenticaion.
416 ****************************************************************************/
418 BOOL make_user_info_guest(auth_usersupplied_info **user_info)
422 nt_status = make_user_info(user_info,
431 return NT_STATUS_IS_OK(nt_status) ? True : False;
434 /****************************************************************************
435 prints a NT_USER_TOKEN to debug output.
436 ****************************************************************************/
438 void debug_nt_user_token(int dbg_class, int dbg_lev, NT_USER_TOKEN *token)
443 DEBUGC(dbg_class, dbg_lev, ("NT user token: (NULL)\n"));
447 DEBUGC(dbg_class, dbg_lev,
448 ("NT user token of user %s\n",
449 sid_string_static(&token->user_sids[0]) ));
450 DEBUGADDC(dbg_class, dbg_lev,
451 ("contains %lu SIDs\n", (unsigned long)token->num_sids));
452 for (i = 0; i < token->num_sids; i++)
453 DEBUGADDC(dbg_class, dbg_lev,
454 ("SID[%3lu]: %s\n", (unsigned long)i,
455 sid_string_static(&token->user_sids[i])));
457 dump_se_priv( dbg_class, dbg_lev, &token->privileges );
460 /****************************************************************************
461 prints a UNIX 'token' to debug output.
462 ****************************************************************************/
464 void debug_unix_user_token(int dbg_class, int dbg_lev, uid_t uid, gid_t gid,
465 int n_groups, gid_t *groups)
468 DEBUGC(dbg_class, dbg_lev,
469 ("UNIX token of user %ld\n", (long int)uid));
471 DEBUGADDC(dbg_class, dbg_lev,
472 ("Primary group is %ld and contains %i supplementary "
473 "groups\n", (long int)gid, n_groups));
474 for (i = 0; i < n_groups; i++)
475 DEBUGADDC(dbg_class, dbg_lev, ("Group[%3i]: %ld\n", i,
476 (long int)groups[i]));
479 /******************************************************************************
480 Create a token for the root user to be used internally by smbd.
481 This is similar to running under the context of the LOCAL_SYSTEM account
482 in Windows. This is a read-only token. Do not modify it or free() it.
483 Create a copy if your need to change it.
484 ******************************************************************************/
486 NT_USER_TOKEN *get_root_nt_token( void )
488 static NT_USER_TOKEN *token = NULL;
489 DOM_SID u_sid, g_sid;
495 if ( !(pw = sys_getpwnam( "root" )) ) {
496 DEBUG(0,("get_root_nt_token: getpwnam\"root\") failed!\n"));
500 /* get the user and primary group SIDs; although the
501 BUILTIN\Administrators SId is really the one that matters here */
503 uid_to_sid(&u_sid, pw->pw_uid);
504 gid_to_sid(&g_sid, pw->pw_gid);
506 token = create_local_nt_token(NULL, &u_sid, &g_sid, False,
507 1, &global_sid_Builtin_Administrators);
511 static int server_info_dtor(void *p)
513 auth_serversupplied_info *server_info =
514 talloc_get_type_abort(p, auth_serversupplied_info);
516 if (server_info->sam_account != NULL) {
517 TALLOC_FREE(server_info->sam_account);
520 ZERO_STRUCTP(server_info);
524 /***************************************************************************
525 Make a server_info struct. Free with TALLOC_FREE().
526 ***************************************************************************/
528 static auth_serversupplied_info *make_server_info(TALLOC_CTX *mem_ctx)
530 struct auth_serversupplied_info *result;
532 result = TALLOC_ZERO_P(mem_ctx, auth_serversupplied_info);
533 if (result == NULL) {
534 DEBUG(0, ("talloc failed\n"));
538 talloc_set_destructor(result, server_info_dtor);
540 /* Initialise the uid and gid values to something non-zero
541 which may save us from giving away root access if there
542 is a bug in allocating these fields. */
549 /***************************************************************************
550 Make (and fill) a user_info struct from a struct samu
551 ***************************************************************************/
553 NTSTATUS make_server_info_sam(auth_serversupplied_info **server_info,
554 struct samu *sampass)
559 auth_serversupplied_info *result;
561 if ( !(pwd = getpwnam_alloc(NULL, pdb_get_username(sampass))) ) {
562 DEBUG(1, ("User %s in passdb, but getpwnam() fails!\n",
563 pdb_get_username(sampass)));
564 return NT_STATUS_NO_SUCH_USER;
567 if ( !(result = make_server_info(NULL)) ) {
569 return NT_STATUS_NO_MEMORY;
572 result->sam_account = sampass;
573 result->unix_name = talloc_strdup(result, pwd->pw_name);
574 result->gid = pwd->pw_gid;
575 result->uid = pwd->pw_uid;
579 status = pdb_enum_group_memberships(result, sampass,
580 &result->sids, &gids,
583 if (!NT_STATUS_IS_OK(status)) {
584 DEBUG(10, ("pdb_enum_group_memberships failed: %s\n",
586 result->sam_account = NULL; /* Don't free on error exit. */
591 /* For now we throw away the gids and convert via sid_to_gid
592 * later. This needs fixing, but I'd like to get the code straight and
596 DEBUG(5,("make_server_info_sam: made server info for user %s -> %s\n",
597 pdb_get_username(sampass), result->unix_name));
599 *server_info = result;
605 * Add alias SIDs from memberships within the partially created token SID list
608 static NTSTATUS add_aliases(TALLOC_CTX *tmp_ctx, const DOM_SID *domain_sid,
609 struct nt_user_token *token)
612 size_t i, num_aliases;
618 status = pdb_enum_alias_memberships(tmp_ctx, domain_sid,
621 &aliases, &num_aliases);
623 if (!NT_STATUS_IS_OK(status)) {
624 DEBUG(10, ("pdb_enum_alias_memberships failed: %s\n",
629 for (i=0; i<num_aliases; i++) {
631 sid_compose(&alias_sid, domain_sid, aliases[i]);
632 add_sid_to_array_unique(token, &alias_sid,
635 if (token->user_sids == NULL) {
636 DEBUG(0, ("add_sid_to_array failed\n"));
637 return NT_STATUS_NO_MEMORY;
644 static NTSTATUS log_nt_token(TALLOC_CTX *tmp_ctx, NT_USER_TOKEN *token)
650 if ((lp_log_nt_token_command() == NULL) ||
651 (strlen(lp_log_nt_token_command()) == 0)) {
655 group_sidstr = talloc_strdup(tmp_ctx, "");
656 for (i=1; i<token->num_sids; i++) {
657 group_sidstr = talloc_asprintf(
658 tmp_ctx, "%s %s", group_sidstr,
659 sid_string_static(&token->user_sids[i]));
662 command = talloc_string_sub(
663 tmp_ctx, lp_log_nt_token_command(),
664 "%s", sid_string_static(&token->user_sids[0]));
665 command = talloc_string_sub(tmp_ctx, command, "%t", group_sidstr);
667 if (command == NULL) {
668 return NT_STATUS_NO_MEMORY;
671 DEBUG(8, ("running command: [%s]\n", command));
672 if (smbrun(command, NULL) != 0) {
673 DEBUG(0, ("Could not log NT token\n"));
674 return NT_STATUS_ACCESS_DENIED;
681 * Create a NT token for the user, expanding local aliases
684 static struct nt_user_token *create_local_nt_token(TALLOC_CTX *mem_ctx,
685 const DOM_SID *user_sid,
686 const DOM_SID *group_sid,
689 const DOM_SID *groupsids)
692 struct nt_user_token *result = NULL;
696 tmp_ctx = talloc_new(mem_ctx);
697 if (tmp_ctx == NULL) {
698 DEBUG(0, ("talloc_new failed\n"));
702 result = TALLOC_ZERO_P(tmp_ctx, NT_USER_TOKEN);
703 if (result == NULL) {
704 DEBUG(0, ("talloc failed\n"));
708 /* First create the default SIDs */
710 add_sid_to_array(result, user_sid,
711 &result->user_sids, &result->num_sids);
712 add_sid_to_array(result, group_sid,
713 &result->user_sids, &result->num_sids);
714 add_sid_to_array(result, &global_sid_World,
715 &result->user_sids, &result->num_sids);
716 add_sid_to_array(result, &global_sid_Network,
717 &result->user_sids, &result->num_sids);
720 add_sid_to_array(result, &global_sid_Builtin_Guests,
721 &result->user_sids, &result->num_sids);
723 add_sid_to_array(result, &global_sid_Authenticated_Users,
724 &result->user_sids, &result->num_sids);
727 /* Now the SIDs we got from authentication. These are the ones from
728 * the info3 struct or from the pdb_enum_group_memberships, depending
729 * on who authenticated the user. */
731 for (i=0; i<num_groupsids; i++) {
732 add_sid_to_array_unique(result, &groupsids[i],
733 &result->user_sids, &result->num_sids);
736 if (lp_winbind_nested_groups()) {
738 /* Now add the aliases. First the one from our local SAM */
740 status = add_aliases(tmp_ctx, get_global_sam_sid(), result);
742 if (!NT_STATUS_IS_OK(status)) {
747 /* Finally the builtin ones */
749 status = add_aliases(tmp_ctx, &global_sid_Builtin, result);
751 if (!NT_STATUS_IS_OK(status)) {
757 /* Play jerry's trick to auto-add local admins if we're a
761 BOOL domain_mode = False;
764 sid_compose(&dom_admins, get_global_sam_sid(),
765 DOMAIN_GROUP_RID_ADMINS);
768 if ((lp_server_role() == ROLE_DOMAIN_MEMBER) &&
769 (secrets_fetch_domain_sid(lp_workgroup(), &dom_admins))) {
770 sid_append_rid(&dom_admins, DOMAIN_GROUP_RID_ADMINS);
775 for (i=0; i<result->num_sids; i++) {
776 if (sid_equal(&dom_admins,
777 &result->user_sids[i])) {
778 add_sid_to_array_unique(
780 &global_sid_Builtin_Administrators,
790 get_privileges_for_sids(&result->privileges, result->user_sids,
793 talloc_steal(mem_ctx, result);
796 TALLOC_FREE(tmp_ctx);
801 * Create the token to use from server_info->sam_account and
802 * server_info->sids (the info3/sam groups). Find the unix gids.
805 NTSTATUS create_local_token(auth_serversupplied_info *server_info)
812 mem_ctx = talloc_new(NULL);
813 if (mem_ctx == NULL) {
814 DEBUG(0, ("talloc_new failed\n"));
815 return NT_STATUS_NO_MEMORY;
818 server_info->ptok = create_local_nt_token(
820 pdb_get_user_sid(server_info->sam_account),
821 pdb_get_group_sid(server_info->sam_account),
823 server_info->num_sids, server_info->sids);
825 /* Convert the SIDs to gids. */
827 server_info->n_groups = 0;
828 server_info->groups = NULL;
830 /* Start at index 1, where the groups start. */
832 for (i=1; i<server_info->ptok->num_sids; i++) {
834 DOM_SID *sid = &server_info->ptok->user_sids[i];
836 if (!sid_to_gid(sid, &gid)) {
837 DEBUG(10, ("Could not convert SID %s to gid, "
838 "ignoring it\n", sid_string_static(sid)));
841 add_gid_to_array_unique(server_info, gid, &server_info->groups,
842 &server_info->n_groups);
845 debug_nt_user_token(DBGC_AUTH, 10, server_info->ptok);
847 status = log_nt_token(mem_ctx, server_info->ptok);
849 TALLOC_FREE(mem_ctx);
854 * Create an artificial NT token given just a username. (Initially indended
857 * We go through lookup_name() to avoid problems we had with 'winbind use
862 * unmapped unix users: Go directly to nss to find the user's group.
864 * A passdb user: The list of groups is provided by pdb_enum_group_memberships.
866 * If the user is provided by winbind, the primary gid is set to "domain
867 * users" of the user's domain. For an explanation why this is necessary, see
868 * the thread starting at
869 * http://lists.samba.org/archive/samba-technical/2006-January/044803.html.
872 NTSTATUS create_token_from_username(TALLOC_CTX *mem_ctx, const char *username,
874 uid_t *uid, gid_t *gid,
875 char **found_username,
876 struct nt_user_token **token)
878 NTSTATUS result = NT_STATUS_NO_SUCH_USER;
881 enum SID_NAME_USE type;
883 DOM_SID primary_group_sid;
885 size_t num_group_sids;
887 tmp_ctx = talloc_new(NULL);
888 if (tmp_ctx == NULL) {
889 DEBUG(0, ("talloc_new failed\n"));
890 return NT_STATUS_NO_MEMORY;
893 if (!lookup_name(tmp_ctx, username, LOOKUP_NAME_ALL,
894 NULL, NULL, &user_sid, &type)) {
895 DEBUG(1, ("lookup_name for %s failed\n", username));
899 if (type != SID_NAME_USER) {
900 DEBUG(1, ("%s is a %s, not a user\n", username,
901 sid_type_lookup(type)));
905 if (!sid_to_uid(&user_sid, uid)) {
906 DEBUG(1, ("sid_to_uid for %s (%s) failed\n",
907 username, sid_string_static(&user_sid)));
911 if (sid_check_is_in_unix_users(&user_sid)) {
913 /* This is a unix user not in passdb. We need to ask nss
914 * directly, without consulting passdb */
919 pass = getpwuid_alloc(tmp_ctx, *uid);
921 DEBUG(1, ("getpwuid(%d) for user %s failed\n",
927 gid_to_sid(&primary_group_sid, pass->pw_gid);
929 if (!getgroups_unix_user(tmp_ctx, username, pass->pw_gid,
930 &gids, &num_group_sids)) {
931 DEBUG(1, ("getgroups_unix_user for user %s failed\n",
936 group_sids = talloc_array(tmp_ctx, DOM_SID, num_group_sids);
937 if (group_sids == NULL) {
938 DEBUG(1, ("talloc_array failed\n"));
939 result = NT_STATUS_NO_MEMORY;
943 for (i=0; i<num_group_sids; i++) {
944 gid_to_sid(&group_sids[i], gids[i]);
946 *found_username = talloc_strdup(mem_ctx, pass->pw_name);
948 } else if (sid_check_is_in_our_domain(&user_sid)) {
950 /* This is a passdb user, so ask passdb */
952 struct samu *sam_acct = NULL;
954 if ( !(sam_acct = samu_new( tmp_ctx )) ) {
958 if (!pdb_getsampwsid(sam_acct, &user_sid)) {
959 DEBUG(1, ("pdb_getsampwsid(%s) for user %s failed\n",
960 sid_string_static(&user_sid), username));
961 result = NT_STATUS_NO_SUCH_USER;
965 sid_copy(&primary_group_sid, pdb_get_group_sid(sam_acct));
967 result = pdb_enum_group_memberships(tmp_ctx, sam_acct,
970 if (!NT_STATUS_IS_OK(result)) {
971 DEBUG(10, ("enum_group_memberships failed for %s\n",
976 *found_username = talloc_strdup(mem_ctx,
977 pdb_get_username(sam_acct));
981 /* This user is from winbind, force the primary gid to the
982 * user's "domain users" group. Under certain circumstances
983 * (user comes from NT4), this might be a loss of
984 * information. But we can not rely on winbind getting the
985 * correct info. AD might prohibit winbind looking up that
990 sid_copy(&primary_group_sid, &user_sid);
991 sid_split_rid(&primary_group_sid, &dummy);
992 sid_append_rid(&primary_group_sid, DOMAIN_GROUP_RID_USERS);
994 if (!sid_to_gid(&primary_group_sid, gid)) {
995 DEBUG(1, ("sid_to_gid(%s) failed\n",
996 sid_string_static(&primary_group_sid)));
1003 *found_username = talloc_strdup(mem_ctx, username);
1006 *token = create_local_nt_token(mem_ctx, &user_sid, &primary_group_sid,
1007 is_guest, num_group_sids, group_sids);
1009 if ((*token == NULL) || (*found_username == NULL)) {
1010 result = NT_STATUS_NO_MEMORY;
1014 result = NT_STATUS_OK;
1016 TALLOC_FREE(tmp_ctx);
1020 /***************************************************************************
1021 Build upon create_token_from_username:
1023 Expensive helper function to figure out whether a user given its name is
1024 member of a particular group.
1025 ***************************************************************************/
1026 BOOL user_in_group_sid(const char *username, const DOM_SID *group_sid)
1031 char *found_username;
1032 struct nt_user_token *token;
1035 TALLOC_CTX *mem_ctx;
1037 mem_ctx = talloc_new(NULL);
1038 if (mem_ctx == NULL) {
1039 DEBUG(0, ("talloc_new failed\n"));
1043 status = create_token_from_username(mem_ctx, username, False,
1044 &uid, &gid, &found_username,
1047 if (!NT_STATUS_IS_OK(status)) {
1048 DEBUG(10, ("could not create token for %s\n", username));
1052 result = nt_token_check_sid(group_sid, token);
1054 TALLOC_FREE(mem_ctx);
1059 BOOL user_in_group(const char *username, const char *groupname)
1061 TALLOC_CTX *mem_ctx;
1066 mem_ctx = talloc_new(NULL);
1067 if (mem_ctx == NULL) {
1068 DEBUG(0, ("talloc_new failed\n"));
1072 ret = lookup_name(mem_ctx, groupname, LOOKUP_NAME_ALL,
1073 NULL, NULL, &group_sid, NULL);
1074 TALLOC_FREE(mem_ctx);
1077 DEBUG(10, ("lookup_name(%s) failed: %s\n", groupname,
1078 nt_errstr(status)));
1082 return user_in_group_sid(username, &group_sid);
1086 /***************************************************************************
1087 Make (and fill) a user_info struct from a Kerberos PAC logon_info by
1088 conversion to a struct samu
1089 ***************************************************************************/
1091 NTSTATUS make_server_info_pac(auth_serversupplied_info **server_info,
1092 char *unix_username,
1094 PAC_LOGON_INFO *logon_info)
1097 struct samu *sampass = NULL;
1098 DOM_SID user_sid, group_sid;
1100 auth_serversupplied_info *result;
1102 if ( !(sampass = samu_new( NULL )) ) {
1103 return NT_STATUS_NO_MEMORY;
1106 status = samu_set_unix( sampass, pwd );
1107 if ( !NT_STATUS_IS_OK(status) ) {
1111 result = make_server_info(NULL);
1112 if (result == NULL) {
1113 TALLOC_FREE(sampass);
1114 return NT_STATUS_NO_MEMORY;
1117 /* only copy user_sid, group_sid and domain name out of the PAC for
1118 * now, we will benefit from more later - Guenther */
1120 sid_copy(&user_sid, &logon_info->info3.dom_sid.sid);
1121 sid_append_rid(&user_sid, logon_info->info3.user_rid);
1122 pdb_set_user_sid(sampass, &user_sid, PDB_SET);
1124 sid_copy(&group_sid, &logon_info->info3.dom_sid.sid);
1125 sid_append_rid(&group_sid, logon_info->info3.group_rid);
1126 pdb_set_group_sid(sampass, &group_sid, PDB_SET);
1128 unistr2_to_ascii(dom_name, &logon_info->info3.uni_logon_dom, -1);
1129 pdb_set_domain(sampass, dom_name, PDB_SET);
1131 pdb_set_logon_count(sampass, logon_info->info3.logon_count, PDB_SET);
1133 result->sam_account = sampass;
1134 result->unix_name = talloc_strdup(result, unix_username);
1135 result->uid = pwd->pw_uid;
1136 result->gid = pwd->pw_gid;
1138 /* TODO: Add groups from pac */
1139 result->sids = NULL;
1140 result->num_sids = 0;
1142 *server_info = result;
1144 return NT_STATUS_OK;
1148 /***************************************************************************
1149 Make (and fill) a user_info struct from a 'struct passwd' by conversion
1151 ***************************************************************************/
1153 NTSTATUS make_server_info_pw(auth_serversupplied_info **server_info,
1154 char *unix_username,
1158 struct samu *sampass = NULL;
1160 auth_serversupplied_info *result;
1162 if ( !(sampass = samu_new( NULL )) ) {
1163 return NT_STATUS_NO_MEMORY;
1166 status = samu_set_unix( sampass, pwd );
1167 if (!NT_STATUS_IS_OK(status)) {
1171 result = make_server_info(NULL);
1173 if (!NT_STATUS_IS_OK(status)) {
1174 TALLOC_FREE(sampass);
1178 result->sam_account = sampass;
1179 result->unix_name = talloc_strdup(result, unix_username);
1180 result->uid = pwd->pw_uid;
1181 result->gid = pwd->pw_gid;
1183 status = pdb_enum_group_memberships(result, sampass,
1184 &result->sids, &gids,
1187 if (!NT_STATUS_IS_OK(status)) {
1188 DEBUG(10, ("pdb_enum_group_memberships failed: %s\n",
1189 nt_errstr(status)));
1190 TALLOC_FREE(result);
1194 /* For now we throw away the gids and convert via sid_to_gid
1195 * later. This needs fixing, but I'd like to get the code straight and
1199 *server_info = result;
1201 return NT_STATUS_OK;
1204 /***************************************************************************
1205 Make (and fill) a user_info struct for a guest login.
1206 This *must* succeed for smbd to start. If there is no mapping entry for
1207 the guest gid, then create one.
1208 **********************
1209 *****************************************************/
1211 static NTSTATUS make_new_server_info_guest(auth_serversupplied_info **server_info)
1214 struct samu *sampass = NULL;
1217 static const char zeros[16];
1219 if ( !(sampass = samu_new( NULL )) ) {
1220 return NT_STATUS_NO_MEMORY;
1223 sid_copy(&guest_sid, get_global_sam_sid());
1224 sid_append_rid(&guest_sid, DOMAIN_USER_RID_GUEST);
1227 ret = pdb_getsampwsid(sampass, &guest_sid);
1231 TALLOC_FREE(sampass);
1232 return NT_STATUS_NO_SUCH_USER;
1235 status = make_server_info_sam(server_info, sampass);
1236 if (!NT_STATUS_IS_OK(status)) {
1237 TALLOC_FREE(sampass);
1241 (*server_info)->guest = True;
1243 status = create_local_token(*server_info);
1244 if (!NT_STATUS_IS_OK(status)) {
1245 DEBUG(10, ("create_local_token failed: %s\n",
1246 nt_errstr(status)));
1250 /* annoying, but the Guest really does have a session key, and it is
1252 (*server_info)->user_session_key = data_blob(zeros, sizeof(zeros));
1253 (*server_info)->lm_session_key = data_blob(zeros, sizeof(zeros));
1255 return NT_STATUS_OK;
1258 static auth_serversupplied_info *copy_serverinfo(auth_serversupplied_info *src)
1260 auth_serversupplied_info *dst;
1262 dst = make_server_info(NULL);
1267 dst->guest = src->guest;
1268 dst->uid = src->uid;
1269 dst->gid = src->gid;
1270 dst->n_groups = src->n_groups;
1271 if (src->n_groups != 0)
1272 dst->groups = talloc_memdup(dst, src->groups,
1273 sizeof(gid_t)*dst->n_groups);
1277 dst->ptok = dup_nt_token(dst, src->ptok);
1279 dst->user_session_key = data_blob_talloc( dst, src->user_session_key.data,
1280 src->user_session_key.length);
1282 dst->lm_session_key = data_blob_talloc(dst, src->lm_session_key.data,
1283 src->lm_session_key.length);
1285 if ( (dst->sam_account = samu_new( NULL )) != NULL )
1286 pdb_copy_sam_account(dst->sam_account, src->sam_account);
1288 dst->pam_handle = NULL;
1289 dst->unix_name = talloc_strdup(dst, src->unix_name);
1294 static auth_serversupplied_info *guest_info = NULL;
1296 BOOL init_guest_info(void)
1298 if (guest_info != NULL)
1303 return NT_STATUS_IS_OK(make_new_server_info_guest(&guest_info));
1306 NTSTATUS make_server_info_guest(auth_serversupplied_info **server_info)
1308 *server_info = copy_serverinfo(guest_info);
1309 return (*server_info != NULL) ? NT_STATUS_OK : NT_STATUS_NO_MEMORY;
1312 /***************************************************************************
1313 Purely internal function for make_server_info_info3
1314 Fill the sam account from getpwnam
1315 ***************************************************************************/
1316 static NTSTATUS fill_sam_account(TALLOC_CTX *mem_ctx,
1318 const char *username,
1319 char **found_username,
1320 uid_t *uid, gid_t *gid,
1321 struct samu *account)
1324 fstring dom_user, lower_username;
1325 fstring real_username;
1326 struct passwd *passwd;
1328 fstrcpy( lower_username, username );
1329 strlower_m( lower_username );
1331 fstr_sprintf(dom_user, "%s%c%s", domain, *lp_winbind_separator(),
1334 /* get the passwd struct but don't create the user if he/she
1335 does not exist. We were explicitly called from a following
1336 a winbindd authentication request so we should assume that
1337 nss_winbindd is working */
1339 map_username( dom_user );
1341 if ( !(passwd = smb_getpwnam( NULL, dom_user, real_username, True )) )
1342 return NT_STATUS_NO_SUCH_USER;
1344 *uid = passwd->pw_uid;
1345 *gid = passwd->pw_gid;
1347 /* This is pointless -- there is no suport for differing
1348 unix and windows names. Make sure to always store the
1349 one we actually looked up and succeeded. Have I mentioned
1350 why I hate the 'winbind use default domain' parameter?
1353 *found_username = talloc_strdup( mem_ctx, real_username );
1355 DEBUG(5,("fill_sam_account: located username was [%s]\n", *found_username));
1357 nt_status = samu_set_unix( account, passwd );
1359 TALLOC_FREE(passwd);
1364 /****************************************************************************
1365 Wrapper to allow the getpwnam() call to strip the domain name and
1366 try again in case a local UNIX user is already there. Also run through
1367 the username if we fallback to the username only.
1368 ****************************************************************************/
1370 struct passwd *smb_getpwnam( TALLOC_CTX *mem_ctx, char *domuser,
1371 fstring save_username, BOOL create )
1373 struct passwd *pw = NULL;
1377 /* we only save a copy of the username it has been mangled
1378 by winbindd use default domain */
1380 save_username[0] = '\0';
1382 /* don't call map_username() here since it has to be done higher
1383 up the stack so we don't call it mutliple times */
1385 fstrcpy( username, domuser );
1387 p = strchr_m( username, *lp_winbind_separator() );
1389 /* code for a DOMAIN\user string */
1392 fstring strip_username;
1394 pw = Get_Pwnam_alloc( mem_ctx, domuser );
1396 /* make sure we get the case of the username correct */
1397 /* work around 'winbind use default domain = yes' */
1399 if ( !strchr_m( pw->pw_name, *lp_winbind_separator() ) ) {
1402 /* split the domain and username into 2 strings */
1406 fstr_sprintf(save_username, "%s%c%s", domain, *lp_winbind_separator(), pw->pw_name);
1409 fstrcpy( save_username, pw->pw_name );
1415 /* setup for lookup of just the username */
1416 /* remember that p and username are overlapping memory */
1419 fstrcpy( strip_username, p );
1420 fstrcpy( username, strip_username );
1423 /* just lookup a plain username */
1425 pw = Get_Pwnam_alloc(mem_ctx, username);
1427 /* Create local user if requested. */
1429 if ( !pw && create ) {
1430 /* Don't add a machine account. */
1431 if (username[strlen(username)-1] == '$')
1434 smb_create_user(NULL, username, NULL);
1435 pw = Get_Pwnam_alloc(mem_ctx, username);
1438 /* one last check for a valid passwd struct */
1441 fstrcpy( save_username, pw->pw_name );
1446 /***************************************************************************
1447 Make a server_info struct from the info3 returned by a domain logon
1448 ***************************************************************************/
1450 NTSTATUS make_server_info_info3(TALLOC_CTX *mem_ctx,
1451 const char *internal_username,
1452 const char *sent_nt_username,
1454 auth_serversupplied_info **server_info,
1455 NET_USER_INFO_3 *info3)
1457 static const char zeros[16];
1459 NTSTATUS nt_status = NT_STATUS_OK;
1460 char *found_username;
1461 const char *nt_domain;
1462 const char *nt_username;
1463 struct samu *sam_account = NULL;
1472 auth_serversupplied_info *result;
1475 Here is where we should check the list of
1476 trusted domains, and verify that the SID
1480 sid_copy(&user_sid, &info3->dom_sid.sid);
1481 if (!sid_append_rid(&user_sid, info3->user_rid)) {
1482 return NT_STATUS_INVALID_PARAMETER;
1485 sid_copy(&group_sid, &info3->dom_sid.sid);
1486 if (!sid_append_rid(&group_sid, info3->group_rid)) {
1487 return NT_STATUS_INVALID_PARAMETER;
1490 if (!(nt_username = unistr2_tdup(mem_ctx, &(info3->uni_user_name)))) {
1491 /* If the server didn't give us one, just use the one we sent
1493 nt_username = sent_nt_username;
1496 if (!(nt_domain = unistr2_tdup(mem_ctx, &(info3->uni_logon_dom)))) {
1497 /* If the server didn't give us one, just use the one we sent
1502 /* try to fill the SAM account.. If getpwnam() fails, then try the
1503 add user script (2.2.x behavior).
1505 We use the _unmapped_ username here in an attempt to provide
1506 consistent username mapping behavior between kerberos and NTLM[SSP]
1507 authentication in domain mode security. I.E. Username mapping
1508 should be applied to the fully qualified username
1509 (e.g. DOMAIN\user) and not just the login name. Yes this means we
1510 called map_username() unnecessarily in make_user_info_map() but
1511 that is how the current code is designed. Making the change here
1512 is the least disruptive place. -- jerry */
1514 if ( !(sam_account = samu_new( NULL )) ) {
1515 return NT_STATUS_NO_MEMORY;
1518 nt_status = fill_sam_account(mem_ctx, nt_domain, sent_nt_username,
1519 &found_username, &uid, &gid, sam_account);
1521 if (NT_STATUS_EQUAL(nt_status, NT_STATUS_NO_SUCH_USER)) {
1522 DEBUG(3,("User %s does not exist, trying to add it\n",
1523 internal_username));
1524 smb_create_user( nt_domain, sent_nt_username, NULL);
1525 nt_status = fill_sam_account( mem_ctx, nt_domain, sent_nt_username,
1526 &found_username, &uid, &gid, sam_account );
1529 /* if we still don't have a valid unix account check for
1530 'map to gues = bad uid' */
1532 if (!NT_STATUS_IS_OK(nt_status)) {
1533 TALLOC_FREE( sam_account );
1534 if ( lp_map_to_guest() == MAP_TO_GUEST_ON_BAD_UID ) {
1535 make_server_info_guest(server_info);
1536 return NT_STATUS_OK;
1541 if (!pdb_set_nt_username(sam_account, nt_username, PDB_CHANGED)) {
1542 TALLOC_FREE(sam_account);
1543 return NT_STATUS_NO_MEMORY;
1546 if (!pdb_set_username(sam_account, nt_username, PDB_CHANGED)) {
1547 TALLOC_FREE(sam_account);
1548 return NT_STATUS_NO_MEMORY;
1551 if (!pdb_set_domain(sam_account, nt_domain, PDB_CHANGED)) {
1552 TALLOC_FREE(sam_account);
1553 return NT_STATUS_NO_MEMORY;
1556 if (!pdb_set_user_sid(sam_account, &user_sid, PDB_CHANGED)) {
1557 TALLOC_FREE(sam_account);
1558 return NT_STATUS_UNSUCCESSFUL;
1561 if (!pdb_set_group_sid(sam_account, &group_sid, PDB_CHANGED)) {
1562 TALLOC_FREE(sam_account);
1563 return NT_STATUS_UNSUCCESSFUL;
1566 if (!pdb_set_fullname(sam_account,
1567 unistr2_static(&(info3->uni_full_name)),
1569 TALLOC_FREE(sam_account);
1570 return NT_STATUS_NO_MEMORY;
1573 if (!pdb_set_logon_script(sam_account,
1574 unistr2_static(&(info3->uni_logon_script)),
1576 TALLOC_FREE(sam_account);
1577 return NT_STATUS_NO_MEMORY;
1580 if (!pdb_set_profile_path(sam_account,
1581 unistr2_static(&(info3->uni_profile_path)),
1583 TALLOC_FREE(sam_account);
1584 return NT_STATUS_NO_MEMORY;
1587 if (!pdb_set_homedir(sam_account,
1588 unistr2_static(&(info3->uni_home_dir)),
1590 TALLOC_FREE(sam_account);
1591 return NT_STATUS_NO_MEMORY;
1594 if (!pdb_set_dir_drive(sam_account,
1595 unistr2_static(&(info3->uni_dir_drive)),
1597 TALLOC_FREE(sam_account);
1598 return NT_STATUS_NO_MEMORY;
1601 result = make_server_info(NULL);
1602 if (result == NULL) {
1603 DEBUG(4, ("make_server_info failed!\n"));
1604 TALLOC_FREE(sam_account);
1605 return NT_STATUS_NO_MEMORY;
1608 /* save this here to _net_sam_logon() doesn't fail (it assumes a
1609 valid struct samu) */
1611 result->sam_account = sam_account;
1612 result->unix_name = talloc_strdup(result, found_username);
1614 /* Fill in the unix info we found on the way */
1619 /* Create a 'combined' list of all SIDs we might want in the SD */
1621 result->num_sids = 0;
1622 result->sids = NULL;
1624 /* and create (by appending rids) the 'domain' sids */
1626 for (i = 0; i < info3->num_groups2; i++) {
1628 if (!sid_compose(&sid, &info3->dom_sid.sid,
1629 info3->gids[i].g_rid)) {
1630 DEBUG(3,("could not append additional group rid "
1631 "0x%x\n", info3->gids[i].g_rid));
1632 TALLOC_FREE(result);
1633 return NT_STATUS_INVALID_PARAMETER;
1635 add_sid_to_array(result, &sid, &result->sids,
1639 /* Copy 'other' sids. We need to do sid filtering here to
1640 prevent possible elevation of privileges. See:
1642 http://www.microsoft.com/windows2000/techinfo/administration/security/sidfilter.asp
1645 for (i = 0; i < info3->num_other_sids; i++) {
1646 add_sid_to_array(result, &info3->other_sids[i].sid,
1651 result->login_server = unistr2_tdup(result,
1652 &(info3->uni_logon_srv));
1654 /* ensure we are never given NULL session keys */
1656 if (memcmp(info3->user_sess_key, zeros, sizeof(zeros)) == 0) {
1657 result->user_session_key = data_blob(NULL, 0);
1659 result->user_session_key = data_blob_talloc(
1660 result, info3->user_sess_key,
1661 sizeof(info3->user_sess_key));
1664 if (memcmp(info3->lm_sess_key, zeros, 8) == 0) {
1665 result->lm_session_key = data_blob(NULL, 0);
1667 result->lm_session_key = data_blob_talloc(
1668 result, info3->lm_sess_key,
1669 sizeof(info3->lm_sess_key));
1672 *server_info = result;
1674 return NT_STATUS_OK;
1677 /***************************************************************************
1678 Free a user_info struct
1679 ***************************************************************************/
1681 void free_user_info(auth_usersupplied_info **user_info)
1683 DEBUG(5,("attempting to free (and zero) a user_info structure\n"));
1684 if (*user_info != NULL) {
1685 if ((*user_info)->smb_name) {
1686 DEBUG(10,("structure was created for %s\n",
1687 (*user_info)->smb_name));
1689 SAFE_FREE((*user_info)->smb_name);
1690 SAFE_FREE((*user_info)->internal_username);
1691 SAFE_FREE((*user_info)->client_domain);
1692 SAFE_FREE((*user_info)->domain);
1693 SAFE_FREE((*user_info)->wksta_name);
1694 data_blob_free(&(*user_info)->lm_resp);
1695 data_blob_free(&(*user_info)->nt_resp);
1696 data_blob_clear_free(&(*user_info)->lm_interactive_pwd);
1697 data_blob_clear_free(&(*user_info)->nt_interactive_pwd);
1698 data_blob_clear_free(&(*user_info)->plaintext_password);
1699 ZERO_STRUCT(**user_info);
1701 SAFE_FREE(*user_info);
1704 /***************************************************************************
1705 Make an auth_methods struct
1706 ***************************************************************************/
1708 BOOL make_auth_methods(struct auth_context *auth_context, auth_methods **auth_method)
1710 if (!auth_context) {
1711 smb_panic("no auth_context supplied to "
1712 "make_auth_methods()!\n");
1716 smb_panic("make_auth_methods: pointer to auth_method pointer "
1720 *auth_method = TALLOC_P(auth_context->mem_ctx, auth_methods);
1721 if (!*auth_method) {
1722 DEBUG(0,("make_auth_method: malloc failed!\n"));
1725 ZERO_STRUCTP(*auth_method);
1730 /****************************************************************************
1731 Duplicate a SID token.
1732 ****************************************************************************/
1734 NT_USER_TOKEN *dup_nt_token(TALLOC_CTX *mem_ctx, NT_USER_TOKEN *ptoken)
1736 NT_USER_TOKEN *token;
1741 token = TALLOC_P(mem_ctx, NT_USER_TOKEN);
1742 if (token == NULL) {
1743 DEBUG(0, ("talloc failed\n"));
1747 token->user_sids = talloc_memdup(token, ptoken->user_sids,
1748 sizeof(DOM_SID) * ptoken->num_sids );
1750 if ((ptoken->user_sids != NULL) && (token->user_sids == NULL)) {
1751 DEBUG(0, ("talloc_memdup failed\n"));
1756 token->num_sids = ptoken->num_sids;
1758 /* copy the privileges; don't consider failure to be critical here */
1760 if ( !se_priv_copy( &token->privileges, &ptoken->privileges ) ) {
1761 DEBUG(0,("dup_nt_token: Failure to copy SE_PRIV!. "
1762 "Continuing with 0 privileges assigned.\n"));
1768 /****************************************************************************
1769 Check for a SID in an NT_USER_TOKEN
1770 ****************************************************************************/
1772 BOOL nt_token_check_sid ( const DOM_SID *sid, const NT_USER_TOKEN *token )
1776 if ( !sid || !token )
1779 for ( i=0; i<token->num_sids; i++ ) {
1780 if ( sid_equal( sid, &token->user_sids[i] ) )
1787 BOOL nt_token_check_domain_rid( NT_USER_TOKEN *token, uint32 rid )
1791 /* if we are a domain member, the get the domain SID, else for
1792 a DC or standalone server, use our own SID */
1794 if ( lp_server_role() == ROLE_DOMAIN_MEMBER ) {
1795 if ( !secrets_fetch_domain_sid( lp_workgroup(),
1797 DEBUG(1,("nt_token_check_domain_rid: Cannot lookup "
1798 "SID for domain [%s]\n", lp_workgroup()));
1803 sid_copy( &domain_sid, get_global_sam_sid() );
1805 sid_append_rid( &domain_sid, rid );
1807 return nt_token_check_sid( &domain_sid, token );\
1811 * Verify whether or not given domain is trusted.
1813 * @param domain_name name of the domain to be verified
1814 * @return true if domain is one of the trusted once or
1815 * false if otherwise
1818 BOOL is_trusted_domain(const char* dom_name)
1820 DOM_SID trustdom_sid;
1823 /* no trusted domains for a standalone server */
1825 if ( lp_server_role() == ROLE_STANDALONE )
1828 /* if we are a DC, then check for a direct trust relationships */
1832 DEBUG (5,("is_trusted_domain: Checking for domain trust with "
1833 "[%s]\n", dom_name ));
1834 ret = secrets_fetch_trusted_domain_password(dom_name, NULL,
1843 /* If winbind is around, ask it */
1845 result = wb_is_trusted_domain(dom_name);
1847 if (result == NSS_STATUS_SUCCESS) {
1851 if (result == NSS_STATUS_NOTFOUND) {
1852 /* winbind could not find the domain */
1856 /* The only other possible result is that winbind is not up
1857 and running. We need to update the trustdom_cache
1860 update_trustdom_cache();
1863 /* now the trustdom cache should be available a DC could still
1864 * have a transitive trust so fall back to the cache of trusted
1865 * domains (like a domain member would use */
1867 if ( trustdom_cache_fetch(dom_name, &trustdom_sid) ) {