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);
79 if (*user_info == NULL) {
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,
157 fstring internal_username;
158 fstrcpy(internal_username, smb_name);
159 was_mapped = map_username(internal_username);
161 DEBUG(5, ("make_user_info_map: Mapping user [%s]\\[%s] from workstation [%s]\n",
162 client_domain, smb_name, wksta_name));
164 /* don't allow "" as a domain, fixes a Win9X bug
165 where it doens't supply a domain for logon script
166 'net use' commands. */
168 if ( *client_domain )
169 domain = client_domain;
171 domain = lp_workgroup();
173 /* do what win2k does. Always map unknown domains to our own
174 and let the "passdb backend" handle unknown users. */
176 if ( !is_trusted_domain(domain) && !strequal(domain, get_global_sam_name()) )
177 domain = my_sam_name();
179 /* we know that it is a trusted domain (and we are allowing them) or it is our domain */
181 result = make_user_info(user_info, smb_name, internal_username,
182 client_domain, domain, wksta_name,
184 lm_interactive_pwd, nt_interactive_pwd,
185 plaintext, encrypted);
186 if (NT_STATUS_IS_OK(result)) {
187 (*user_info)->was_mapped = was_mapped;
192 /****************************************************************************
193 Create an auth_usersupplied_data, making the DATA_BLOBs here.
194 Decrypt and encrypt the passwords.
195 ****************************************************************************/
197 BOOL make_user_info_netlogon_network(auth_usersupplied_info **user_info,
198 const char *smb_name,
199 const char *client_domain,
200 const char *wksta_name,
201 uint32 logon_parameters,
202 const uchar *lm_network_pwd,
204 const uchar *nt_network_pwd,
209 DATA_BLOB lm_blob = data_blob(lm_network_pwd, lm_pwd_len);
210 DATA_BLOB nt_blob = data_blob(nt_network_pwd, nt_pwd_len);
212 status = make_user_info_map(user_info,
213 smb_name, client_domain,
215 lm_pwd_len ? &lm_blob : NULL,
216 nt_pwd_len ? &nt_blob : NULL,
220 if (NT_STATUS_IS_OK(status)) {
221 (*user_info)->logon_parameters = logon_parameters;
223 ret = NT_STATUS_IS_OK(status) ? True : False;
225 data_blob_free(&lm_blob);
226 data_blob_free(&nt_blob);
230 /****************************************************************************
231 Create an auth_usersupplied_data, making the DATA_BLOBs here.
232 Decrypt and encrypt the passwords.
233 ****************************************************************************/
235 BOOL make_user_info_netlogon_interactive(auth_usersupplied_info **user_info,
236 const char *smb_name,
237 const char *client_domain,
238 const char *wksta_name,
239 uint32 logon_parameters,
241 const uchar lm_interactive_pwd[16],
242 const uchar nt_interactive_pwd[16],
243 const uchar *dc_sess_key)
247 unsigned char local_lm_response[24];
248 unsigned char local_nt_response[24];
249 unsigned char key[16];
252 memcpy(key, dc_sess_key, 8);
254 if (lm_interactive_pwd)
255 memcpy(lm_pwd, lm_interactive_pwd, sizeof(lm_pwd));
257 if (nt_interactive_pwd)
258 memcpy(nt_pwd, nt_interactive_pwd, sizeof(nt_pwd));
260 #ifdef DEBUG_PASSWORD
262 dump_data(100, (char *)key, sizeof(key));
264 DEBUG(100,("lm owf password:"));
265 dump_data(100, lm_pwd, sizeof(lm_pwd));
267 DEBUG(100,("nt owf password:"));
268 dump_data(100, nt_pwd, sizeof(nt_pwd));
271 if (lm_interactive_pwd)
272 SamOEMhash((uchar *)lm_pwd, key, sizeof(lm_pwd));
274 if (nt_interactive_pwd)
275 SamOEMhash((uchar *)nt_pwd, key, sizeof(nt_pwd));
277 #ifdef DEBUG_PASSWORD
278 DEBUG(100,("decrypt of lm owf password:"));
279 dump_data(100, lm_pwd, sizeof(lm_pwd));
281 DEBUG(100,("decrypt of nt owf password:"));
282 dump_data(100, nt_pwd, sizeof(nt_pwd));
285 if (lm_interactive_pwd)
286 SMBOWFencrypt((const unsigned char *)lm_pwd, chal,
289 if (nt_interactive_pwd)
290 SMBOWFencrypt((const unsigned char *)nt_pwd, chal,
293 /* Password info paranoia */
299 DATA_BLOB local_lm_blob;
300 DATA_BLOB local_nt_blob;
302 DATA_BLOB lm_interactive_blob;
303 DATA_BLOB nt_interactive_blob;
305 if (lm_interactive_pwd) {
306 local_lm_blob = data_blob(local_lm_response,
307 sizeof(local_lm_response));
308 lm_interactive_blob = data_blob(lm_pwd,
313 if (nt_interactive_pwd) {
314 local_nt_blob = data_blob(local_nt_response,
315 sizeof(local_nt_response));
316 nt_interactive_blob = data_blob(nt_pwd,
321 nt_status = make_user_info_map(
323 smb_name, client_domain, wksta_name,
324 lm_interactive_pwd ? &local_lm_blob : NULL,
325 nt_interactive_pwd ? &local_nt_blob : NULL,
326 lm_interactive_pwd ? &lm_interactive_blob : NULL,
327 nt_interactive_pwd ? &nt_interactive_blob : NULL,
330 if (NT_STATUS_IS_OK(nt_status)) {
331 (*user_info)->logon_parameters = logon_parameters;
334 ret = NT_STATUS_IS_OK(nt_status) ? True : False;
335 data_blob_free(&local_lm_blob);
336 data_blob_free(&local_nt_blob);
337 data_blob_free(&lm_interactive_blob);
338 data_blob_free(&nt_interactive_blob);
344 /****************************************************************************
345 Create an auth_usersupplied_data structure
346 ****************************************************************************/
348 BOOL make_user_info_for_reply(auth_usersupplied_info **user_info,
349 const char *smb_name,
350 const char *client_domain,
352 DATA_BLOB plaintext_password)
355 DATA_BLOB local_lm_blob;
356 DATA_BLOB local_nt_blob;
357 NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
360 * Not encrypted - do so.
363 DEBUG(5,("make_user_info_for_reply: User passwords not in encrypted "
366 if (plaintext_password.data) {
367 unsigned char local_lm_response[24];
369 #ifdef DEBUG_PASSWORD
370 DEBUG(10,("Unencrypted password (len %d):\n",
371 (int)plaintext_password.length));
372 dump_data(100, (const char *)plaintext_password.data,
373 plaintext_password.length);
376 SMBencrypt( (const char *)plaintext_password.data,
377 (const uchar*)chal, local_lm_response);
378 local_lm_blob = data_blob(local_lm_response, 24);
380 /* We can't do an NT hash here, as the password needs to be
382 local_nt_blob = data_blob(NULL, 0);
385 local_lm_blob = data_blob(NULL, 0);
386 local_nt_blob = data_blob(NULL, 0);
389 ret = make_user_info_map(
390 user_info, smb_name, client_domain,
391 get_remote_machine_name(),
392 local_lm_blob.data ? &local_lm_blob : NULL,
393 local_nt_blob.data ? &local_nt_blob : NULL,
395 plaintext_password.data ? &plaintext_password : NULL,
398 data_blob_free(&local_lm_blob);
399 return NT_STATUS_IS_OK(ret) ? True : False;
402 /****************************************************************************
403 Create an auth_usersupplied_data structure
404 ****************************************************************************/
406 NTSTATUS make_user_info_for_reply_enc(auth_usersupplied_info **user_info,
407 const char *smb_name,
408 const char *client_domain,
409 DATA_BLOB lm_resp, DATA_BLOB nt_resp)
411 return make_user_info_map(user_info, smb_name,
413 get_remote_machine_name(),
414 lm_resp.data ? &lm_resp : NULL,
415 nt_resp.data ? &nt_resp : NULL,
420 /****************************************************************************
421 Create a guest user_info blob, for anonymous authenticaion.
422 ****************************************************************************/
424 BOOL make_user_info_guest(auth_usersupplied_info **user_info)
428 nt_status = make_user_info(user_info,
437 return NT_STATUS_IS_OK(nt_status) ? True : False;
440 /****************************************************************************
441 prints a NT_USER_TOKEN to debug output.
442 ****************************************************************************/
444 void debug_nt_user_token(int dbg_class, int dbg_lev, NT_USER_TOKEN *token)
449 DEBUGC(dbg_class, dbg_lev, ("NT user token: (NULL)\n"));
453 DEBUGC(dbg_class, dbg_lev,
454 ("NT user token of user %s\n",
455 sid_string_static(&token->user_sids[0]) ));
456 DEBUGADDC(dbg_class, dbg_lev,
457 ("contains %lu SIDs\n", (unsigned long)token->num_sids));
458 for (i = 0; i < token->num_sids; i++)
459 DEBUGADDC(dbg_class, dbg_lev,
460 ("SID[%3lu]: %s\n", (unsigned long)i,
461 sid_string_static(&token->user_sids[i])));
463 dump_se_priv( dbg_class, dbg_lev, &token->privileges );
466 /****************************************************************************
467 prints a UNIX 'token' to debug output.
468 ****************************************************************************/
470 void debug_unix_user_token(int dbg_class, int dbg_lev, uid_t uid, gid_t gid,
471 int n_groups, gid_t *groups)
474 DEBUGC(dbg_class, dbg_lev,
475 ("UNIX token of user %ld\n", (long int)uid));
477 DEBUGADDC(dbg_class, dbg_lev,
478 ("Primary group is %ld and contains %i supplementary "
479 "groups\n", (long int)gid, n_groups));
480 for (i = 0; i < n_groups; i++)
481 DEBUGADDC(dbg_class, dbg_lev, ("Group[%3i]: %ld\n", i,
482 (long int)groups[i]));
485 /******************************************************************************
486 Create a token for the root user to be used internally by smbd.
487 This is similar to running under the context of the LOCAL_SYSTEM account
488 in Windows. This is a read-only token. Do not modify it or free() it.
489 Create a copy if your need to change it.
490 ******************************************************************************/
492 NT_USER_TOKEN *get_root_nt_token( void )
494 static NT_USER_TOKEN *token = NULL;
495 DOM_SID u_sid, g_sid;
501 if ( !(pw = sys_getpwnam( "root" )) ) {
502 DEBUG(0,("get_root_nt_token: getpwnam\"root\") failed!\n"));
506 /* get the user and primary group SIDs; although the
507 BUILTIN\Administrators SId is really the one that matters here */
509 uid_to_sid(&u_sid, pw->pw_uid);
510 gid_to_sid(&g_sid, pw->pw_gid);
512 token = create_local_nt_token(NULL, &u_sid, &g_sid, False,
513 1, &global_sid_Builtin_Administrators);
517 static int server_info_dtor(void *p)
519 auth_serversupplied_info *server_info =
520 talloc_get_type_abort(p, auth_serversupplied_info);
522 if (server_info->sam_account != NULL) {
523 TALLOC_FREE(server_info->sam_account);
526 ZERO_STRUCTP(server_info);
530 /***************************************************************************
531 Make a server_info struct. Free with TALLOC_FREE().
532 ***************************************************************************/
534 static auth_serversupplied_info *make_server_info(TALLOC_CTX *mem_ctx)
536 struct auth_serversupplied_info *result;
538 result = TALLOC_ZERO_P(mem_ctx, auth_serversupplied_info);
539 if (result == NULL) {
540 DEBUG(0, ("talloc failed\n"));
544 talloc_set_destructor(result, server_info_dtor);
546 /* Initialise the uid and gid values to something non-zero
547 which may save us from giving away root access if there
548 is a bug in allocating these fields. */
555 /***************************************************************************
556 Make (and fill) a user_info struct from a struct samu
557 ***************************************************************************/
559 NTSTATUS make_server_info_sam(auth_serversupplied_info **server_info,
560 struct samu *sampass)
565 auth_serversupplied_info *result;
567 if ( !(pwd = getpwnam_alloc(NULL, pdb_get_username(sampass))) ) {
568 DEBUG(1, ("User %s in passdb, but getpwnam() fails!\n",
569 pdb_get_username(sampass)));
570 return NT_STATUS_NO_SUCH_USER;
573 if ( !(result = make_server_info(NULL)) ) {
575 return NT_STATUS_NO_MEMORY;
578 result->sam_account = sampass;
579 result->unix_name = talloc_strdup(result, pwd->pw_name);
580 result->gid = pwd->pw_gid;
581 result->uid = pwd->pw_uid;
585 status = pdb_enum_group_memberships(result, sampass,
586 &result->sids, &gids,
589 if (!NT_STATUS_IS_OK(status)) {
590 DEBUG(10, ("pdb_enum_group_memberships failed: %s\n",
592 result->sam_account = NULL; /* Don't free on error exit. */
597 /* For now we throw away the gids and convert via sid_to_gid
598 * later. This needs fixing, but I'd like to get the code straight and
602 DEBUG(5,("make_server_info_sam: made server info for user %s -> %s\n",
603 pdb_get_username(sampass), result->unix_name));
605 *server_info = result;
611 * Add alias SIDs from memberships within the partially created token SID list
614 static NTSTATUS add_aliases(TALLOC_CTX *tmp_ctx, const DOM_SID *domain_sid,
615 struct nt_user_token *token)
618 size_t i, num_aliases;
624 status = pdb_enum_alias_memberships(tmp_ctx, domain_sid,
627 &aliases, &num_aliases);
629 if (!NT_STATUS_IS_OK(status)) {
630 DEBUG(10, ("pdb_enum_alias_memberships failed: %s\n",
635 for (i=0; i<num_aliases; i++) {
637 sid_compose(&alias_sid, domain_sid, aliases[i]);
638 add_sid_to_array_unique(token, &alias_sid,
641 if (token->user_sids == NULL) {
642 DEBUG(0, ("add_sid_to_array failed\n"));
643 return NT_STATUS_NO_MEMORY;
650 static NTSTATUS log_nt_token(TALLOC_CTX *tmp_ctx, NT_USER_TOKEN *token)
656 if ((lp_log_nt_token_command() == NULL) ||
657 (strlen(lp_log_nt_token_command()) == 0)) {
661 group_sidstr = talloc_strdup(tmp_ctx, "");
662 for (i=1; i<token->num_sids; i++) {
663 group_sidstr = talloc_asprintf(
664 tmp_ctx, "%s %s", group_sidstr,
665 sid_string_static(&token->user_sids[i]));
668 command = talloc_string_sub(
669 tmp_ctx, lp_log_nt_token_command(),
670 "%s", sid_string_static(&token->user_sids[0]));
671 command = talloc_string_sub(tmp_ctx, command, "%t", group_sidstr);
673 if (command == NULL) {
674 return NT_STATUS_NO_MEMORY;
677 DEBUG(8, ("running command: [%s]\n", command));
678 if (smbrun(command, NULL) != 0) {
679 DEBUG(0, ("Could not log NT token\n"));
680 return NT_STATUS_ACCESS_DENIED;
686 /*******************************************************************
687 *******************************************************************/
689 static NTSTATUS add_builtin_administrators( TALLOC_CTX *ctx, struct nt_user_token *token )
694 /*******************************************************************
695 *******************************************************************/
697 static NTSTATUS create_builtin_users( void )
702 status = pdb_create_builtin_alias( BUILTIN_ALIAS_RID_USERS );
703 if ( !NT_STATUS_IS_OK(status) ) {
704 DEBUG(0,("create_builtin_users: Failed to create Users\n"));
708 /* add domain users */
709 if ((IS_DC || (lp_server_role() == ROLE_DOMAIN_MEMBER))
710 && secrets_fetch_domain_sid(lp_workgroup(), &dom_users))
712 sid_append_rid(&dom_users, DOMAIN_GROUP_RID_USERS );
713 status = pdb_add_aliasmem( &global_sid_Builtin_Users, &dom_users);
714 if ( !NT_STATUS_IS_OK(status) ) {
715 DEBUG(0,("create_builtin_administrators: Failed to add Domain Users to"
724 /*******************************************************************
725 *******************************************************************/
727 static NTSTATUS create_builtin_administrators( void )
730 DOM_SID dom_admins, root_sid;
732 enum SID_NAME_USE type;
736 status = pdb_create_builtin_alias( BUILTIN_ALIAS_RID_ADMINS );
737 if ( !NT_STATUS_IS_OK(status) ) {
738 DEBUG(0,("create_builtin_administrators: Failed to create Administrators\n"));
742 /* add domain admins */
743 if ((IS_DC || (lp_server_role() == ROLE_DOMAIN_MEMBER))
744 && secrets_fetch_domain_sid(lp_workgroup(), &dom_admins))
746 sid_append_rid(&dom_admins, DOMAIN_GROUP_RID_ADMINS);
747 status = pdb_add_aliasmem( &global_sid_Builtin_Administrators, &dom_admins );
748 if ( !NT_STATUS_IS_OK(status) ) {
749 DEBUG(0,("create_builtin_administrators: Failed to add Domain Admins"
750 " Administrators\n"));
756 if ( (ctx = talloc_init(NULL)) == NULL ) {
757 return NT_STATUS_NO_MEMORY;
759 fstr_sprintf( root_name, "%s\\root", get_global_sam_name() );
760 ret = lookup_name( ctx, root_name, 0, NULL, NULL, &root_sid, &type );
764 status = pdb_add_aliasmem( &global_sid_Builtin_Administrators, &root_sid );
765 if ( !NT_STATUS_IS_OK(status) ) {
766 DEBUG(0,("create_builtin_administrators: Failed to add root"
767 " Administrators\n"));
775 /*******************************************************************
776 Create a NT token for the user, expanding local aliases
777 *******************************************************************/
779 static struct nt_user_token *create_local_nt_token(TALLOC_CTX *mem_ctx,
780 const DOM_SID *user_sid,
781 const DOM_SID *group_sid,
784 const DOM_SID *groupsids)
787 struct nt_user_token *result = NULL;
792 tmp_ctx = talloc_new(mem_ctx);
793 if (tmp_ctx == NULL) {
794 DEBUG(0, ("talloc_new failed\n"));
798 result = TALLOC_ZERO_P(tmp_ctx, NT_USER_TOKEN);
799 if (result == NULL) {
800 DEBUG(0, ("talloc failed\n"));
804 /* Add the user and primary group sid */
806 add_sid_to_array(result, user_sid,
807 &result->user_sids, &result->num_sids);
808 add_sid_to_array(result, group_sid,
809 &result->user_sids, &result->num_sids);
811 /* Add in BUILTIN sids */
813 add_sid_to_array(result, &global_sid_World,
814 &result->user_sids, &result->num_sids);
815 add_sid_to_array(result, &global_sid_Network,
816 &result->user_sids, &result->num_sids);
819 add_sid_to_array(result, &global_sid_Builtin_Guests,
820 &result->user_sids, &result->num_sids);
822 add_sid_to_array(result, &global_sid_Authenticated_Users,
823 &result->user_sids, &result->num_sids);
826 /* Now the SIDs we got from authentication. These are the ones from
827 * the info3 struct or from the pdb_enum_group_memberships, depending
828 * on who authenticated the user. */
830 for (i=0; i<num_groupsids; i++) {
831 add_sid_to_array_unique(result, &groupsids[i],
832 &result->user_sids, &result->num_sids);
835 /* Deal with the BUILTIN\Administrators group. If the SID can
836 be resolved then assume that the add_aliasmem( S-1-5-32 )
839 if ( !sid_to_gid( &global_sid_Builtin_Administrators, &gid ) ) {
840 /* We can only create a mapping if winbind is running
841 and the nested group functionality has been enabled */
843 if ( lp_winbind_nested_groups() && winbind_ping() ) {
845 status = create_builtin_administrators( );
846 if ( !NT_STATUS_IS_OK(status) ) {
847 DEBUG(0,("create_local_nt_token: Failed to create BUILTIN\\Administrators group!\n"));
848 /* don't fail, just log the message */
853 status = add_builtin_administrators( tmp_ctx, result );
854 if ( !NT_STATUS_IS_OK(status) ) {
861 /* Deal with the BUILTIN\Users group. If the SID can
862 be resolved then assume that the add_aliasmem( S-1-5-32 )
865 if ( !sid_to_gid( &global_sid_Builtin_Users, &gid ) ) {
866 /* We can only create a mapping if winbind is running
867 and the nested group functionality has been enabled */
869 if ( lp_winbind_nested_groups() && winbind_ping() ) {
871 status = create_builtin_users( );
872 if ( !NT_STATUS_IS_OK(status) ) {
873 DEBUG(0,("create_local_nt_token: Failed to create BUILTIN\\Administrators group!\n"));
874 /* don't fail, just log the message */
880 /* Deal with local groups */
882 if (lp_winbind_nested_groups()) {
884 /* Now add the aliases. First the one from our local SAM */
886 status = add_aliases(tmp_ctx, get_global_sam_sid(), result);
888 if (!NT_STATUS_IS_OK(status)) {
893 /* Finally the builtin ones */
895 status = add_aliases(tmp_ctx, &global_sid_Builtin, result);
897 if (!NT_STATUS_IS_OK(status)) {
904 get_privileges_for_sids(&result->privileges, result->user_sids,
907 talloc_steal(mem_ctx, result);
910 TALLOC_FREE(tmp_ctx);
915 * Create the token to use from server_info->sam_account and
916 * server_info->sids (the info3/sam groups). Find the unix gids.
919 NTSTATUS create_local_token(auth_serversupplied_info *server_info)
926 mem_ctx = talloc_new(NULL);
927 if (mem_ctx == NULL) {
928 DEBUG(0, ("talloc_new failed\n"));
929 return NT_STATUS_NO_MEMORY;
932 if (server_info->was_mapped) {
933 status = create_token_from_username(server_info,
934 server_info->unix_name,
938 &server_info->unix_name,
942 server_info->ptok = create_local_nt_token(
944 pdb_get_user_sid(server_info->sam_account),
945 pdb_get_group_sid(server_info->sam_account),
947 server_info->num_sids, server_info->sids);
948 status = server_info->ptok ?
949 NT_STATUS_OK : NT_STATUS_NO_SUCH_USER;
952 if (!NT_STATUS_IS_OK(status)) {
953 TALLOC_FREE(mem_ctx);
957 /* Convert the SIDs to gids. */
959 server_info->n_groups = 0;
960 server_info->groups = NULL;
962 /* Start at index 1, where the groups start. */
964 for (i=1; i<server_info->ptok->num_sids; i++) {
966 DOM_SID *sid = &server_info->ptok->user_sids[i];
968 if (!sid_to_gid(sid, &gid)) {
969 DEBUG(10, ("Could not convert SID %s to gid, "
970 "ignoring it\n", sid_string_static(sid)));
973 add_gid_to_array_unique(server_info, gid, &server_info->groups,
974 &server_info->n_groups);
977 debug_nt_user_token(DBGC_AUTH, 10, server_info->ptok);
979 status = log_nt_token(mem_ctx, server_info->ptok);
981 TALLOC_FREE(mem_ctx);
986 * Create an artificial NT token given just a username. (Initially indended
989 * We go through lookup_name() to avoid problems we had with 'winbind use
994 * unmapped unix users: Go directly to nss to find the user's group.
996 * A passdb user: The list of groups is provided by pdb_enum_group_memberships.
998 * If the user is provided by winbind, the primary gid is set to "domain
999 * users" of the user's domain. For an explanation why this is necessary, see
1000 * the thread starting at
1001 * http://lists.samba.org/archive/samba-technical/2006-January/044803.html.
1004 NTSTATUS create_token_from_username(TALLOC_CTX *mem_ctx, const char *username,
1006 uid_t *uid, gid_t *gid,
1007 char **found_username,
1008 struct nt_user_token **token)
1010 NTSTATUS result = NT_STATUS_NO_SUCH_USER;
1011 TALLOC_CTX *tmp_ctx;
1013 enum SID_NAME_USE type;
1015 DOM_SID primary_group_sid;
1016 DOM_SID *group_sids;
1017 size_t num_group_sids;
1019 tmp_ctx = talloc_new(NULL);
1020 if (tmp_ctx == NULL) {
1021 DEBUG(0, ("talloc_new failed\n"));
1022 return NT_STATUS_NO_MEMORY;
1025 if (!lookup_name(tmp_ctx, username, LOOKUP_NAME_ALL,
1026 NULL, NULL, &user_sid, &type)) {
1027 DEBUG(1, ("lookup_name for %s failed\n", username));
1031 if (type != SID_NAME_USER) {
1032 DEBUG(1, ("%s is a %s, not a user\n", username,
1033 sid_type_lookup(type)));
1037 if (!sid_to_uid(&user_sid, uid)) {
1038 DEBUG(1, ("sid_to_uid for %s (%s) failed\n",
1039 username, sid_string_static(&user_sid)));
1043 if (sid_check_is_in_unix_users(&user_sid)) {
1045 /* This is a unix user not in passdb. We need to ask nss
1046 * directly, without consulting passdb */
1048 struct passwd *pass;
1051 pass = getpwuid_alloc(tmp_ctx, *uid);
1053 DEBUG(1, ("getpwuid(%d) for user %s failed\n",
1058 *gid = pass->pw_gid;
1059 gid_to_sid(&primary_group_sid, pass->pw_gid);
1061 if (!getgroups_unix_user(tmp_ctx, username, pass->pw_gid,
1062 &gids, &num_group_sids)) {
1063 DEBUG(1, ("getgroups_unix_user for user %s failed\n",
1068 group_sids = talloc_array(tmp_ctx, DOM_SID, num_group_sids);
1069 if (group_sids == NULL) {
1070 DEBUG(1, ("talloc_array failed\n"));
1071 result = NT_STATUS_NO_MEMORY;
1075 for (i=0; i<num_group_sids; i++) {
1076 gid_to_sid(&group_sids[i], gids[i]);
1078 *found_username = talloc_strdup(mem_ctx, pass->pw_name);
1080 } else if (sid_check_is_in_our_domain(&user_sid)) {
1082 /* This is a passdb user, so ask passdb */
1084 struct samu *sam_acct = NULL;
1086 if ( !(sam_acct = samu_new( tmp_ctx )) ) {
1090 if (!pdb_getsampwsid(sam_acct, &user_sid)) {
1091 DEBUG(1, ("pdb_getsampwsid(%s) for user %s failed\n",
1092 sid_string_static(&user_sid), username));
1093 result = NT_STATUS_NO_SUCH_USER;
1097 sid_copy(&primary_group_sid, pdb_get_group_sid(sam_acct));
1099 if (!sid_to_gid(&primary_group_sid, gid)) {
1100 DEBUG(1, ("sid_to_gid(%s) failed\n",
1101 sid_string_static(&primary_group_sid)));
1105 result = pdb_enum_group_memberships(tmp_ctx, sam_acct,
1108 if (!NT_STATUS_IS_OK(result)) {
1109 DEBUG(10, ("enum_group_memberships failed for %s\n",
1114 *found_username = talloc_strdup(mem_ctx,
1115 pdb_get_username(sam_acct));
1119 /* This user is from winbind, force the primary gid to the
1120 * user's "domain users" group. Under certain circumstances
1121 * (user comes from NT4), this might be a loss of
1122 * information. But we can not rely on winbind getting the
1123 * correct info. AD might prohibit winbind looking up that
1128 sid_copy(&primary_group_sid, &user_sid);
1129 sid_split_rid(&primary_group_sid, &dummy);
1130 sid_append_rid(&primary_group_sid, DOMAIN_GROUP_RID_USERS);
1132 if (!sid_to_gid(&primary_group_sid, gid)) {
1133 DEBUG(1, ("sid_to_gid(%s) failed\n",
1134 sid_string_static(&primary_group_sid)));
1141 *found_username = talloc_strdup(mem_ctx, username);
1144 *token = create_local_nt_token(mem_ctx, &user_sid, &primary_group_sid,
1145 is_guest, num_group_sids, group_sids);
1147 if ((*token == NULL) || (*found_username == NULL)) {
1148 result = NT_STATUS_NO_MEMORY;
1152 result = NT_STATUS_OK;
1154 TALLOC_FREE(tmp_ctx);
1158 /***************************************************************************
1159 Build upon create_token_from_username:
1161 Expensive helper function to figure out whether a user given its name is
1162 member of a particular group.
1163 ***************************************************************************/
1164 BOOL user_in_group_sid(const char *username, const DOM_SID *group_sid)
1169 char *found_username;
1170 struct nt_user_token *token;
1173 TALLOC_CTX *mem_ctx;
1175 mem_ctx = talloc_new(NULL);
1176 if (mem_ctx == NULL) {
1177 DEBUG(0, ("talloc_new failed\n"));
1181 status = create_token_from_username(mem_ctx, username, False,
1182 &uid, &gid, &found_username,
1185 if (!NT_STATUS_IS_OK(status)) {
1186 DEBUG(10, ("could not create token for %s\n", username));
1190 result = nt_token_check_sid(group_sid, token);
1192 TALLOC_FREE(mem_ctx);
1197 BOOL user_in_group(const char *username, const char *groupname)
1199 TALLOC_CTX *mem_ctx;
1203 mem_ctx = talloc_new(NULL);
1204 if (mem_ctx == NULL) {
1205 DEBUG(0, ("talloc_new failed\n"));
1209 ret = lookup_name(mem_ctx, groupname, LOOKUP_NAME_ALL,
1210 NULL, NULL, &group_sid, NULL);
1211 TALLOC_FREE(mem_ctx);
1214 DEBUG(10, ("lookup_name for (%s) failed.\n", groupname));
1218 return user_in_group_sid(username, &group_sid);
1222 /***************************************************************************
1223 Make (and fill) a user_info struct from a 'struct passwd' by conversion
1225 ***************************************************************************/
1227 NTSTATUS make_server_info_pw(auth_serversupplied_info **server_info,
1228 char *unix_username,
1232 struct samu *sampass = NULL;
1234 auth_serversupplied_info *result;
1236 if ( !(sampass = samu_new( NULL )) ) {
1237 return NT_STATUS_NO_MEMORY;
1240 status = samu_set_unix( sampass, pwd );
1241 if (!NT_STATUS_IS_OK(status)) {
1245 result = make_server_info(NULL);
1247 if (!NT_STATUS_IS_OK(status)) {
1248 TALLOC_FREE(sampass);
1252 result->sam_account = sampass;
1253 result->unix_name = talloc_strdup(result, unix_username);
1254 result->uid = pwd->pw_uid;
1255 result->gid = pwd->pw_gid;
1257 status = pdb_enum_group_memberships(result, sampass,
1258 &result->sids, &gids,
1261 if (!NT_STATUS_IS_OK(status)) {
1262 DEBUG(10, ("pdb_enum_group_memberships failed: %s\n",
1263 nt_errstr(status)));
1264 TALLOC_FREE(result);
1268 /* For now we throw away the gids and convert via sid_to_gid
1269 * later. This needs fixing, but I'd like to get the code straight and
1273 *server_info = result;
1275 return NT_STATUS_OK;
1278 /***************************************************************************
1279 Make (and fill) a user_info struct for a guest login.
1280 This *must* succeed for smbd to start. If there is no mapping entry for
1281 the guest gid, then create one.
1282 ***************************************************************************/
1284 static NTSTATUS make_new_server_info_guest(auth_serversupplied_info **server_info)
1287 struct samu *sampass = NULL;
1290 static const char zeros[16];
1292 if ( !(sampass = samu_new( NULL )) ) {
1293 return NT_STATUS_NO_MEMORY;
1296 sid_copy(&guest_sid, get_global_sam_sid());
1297 sid_append_rid(&guest_sid, DOMAIN_USER_RID_GUEST);
1300 ret = pdb_getsampwsid(sampass, &guest_sid);
1304 TALLOC_FREE(sampass);
1305 return NT_STATUS_NO_SUCH_USER;
1308 status = make_server_info_sam(server_info, sampass);
1309 if (!NT_STATUS_IS_OK(status)) {
1310 TALLOC_FREE(sampass);
1314 (*server_info)->guest = True;
1316 status = create_local_token(*server_info);
1317 if (!NT_STATUS_IS_OK(status)) {
1318 DEBUG(10, ("create_local_token failed: %s\n",
1319 nt_errstr(status)));
1323 /* annoying, but the Guest really does have a session key, and it is
1325 (*server_info)->user_session_key = data_blob(zeros, sizeof(zeros));
1326 (*server_info)->lm_session_key = data_blob(zeros, sizeof(zeros));
1328 return NT_STATUS_OK;
1331 static auth_serversupplied_info *copy_serverinfo(auth_serversupplied_info *src)
1333 auth_serversupplied_info *dst;
1335 dst = make_server_info(NULL);
1340 dst->guest = src->guest;
1341 dst->uid = src->uid;
1342 dst->gid = src->gid;
1343 dst->n_groups = src->n_groups;
1344 if (src->n_groups != 0)
1345 dst->groups = talloc_memdup(dst, src->groups,
1346 sizeof(gid_t)*dst->n_groups);
1350 dst->ptok = dup_nt_token(dst, src->ptok);
1352 dst->user_session_key = data_blob_talloc( dst, src->user_session_key.data,
1353 src->user_session_key.length);
1355 dst->lm_session_key = data_blob_talloc(dst, src->lm_session_key.data,
1356 src->lm_session_key.length);
1358 if ( (dst->sam_account = samu_new( NULL )) != NULL )
1359 pdb_copy_sam_account(dst->sam_account, src->sam_account);
1361 dst->pam_handle = NULL;
1362 dst->unix_name = talloc_strdup(dst, src->unix_name);
1367 static auth_serversupplied_info *guest_info = NULL;
1369 BOOL init_guest_info(void)
1371 if (guest_info != NULL)
1374 return NT_STATUS_IS_OK(make_new_server_info_guest(&guest_info));
1377 NTSTATUS make_server_info_guest(auth_serversupplied_info **server_info)
1379 *server_info = copy_serverinfo(guest_info);
1380 return (*server_info != NULL) ? NT_STATUS_OK : NT_STATUS_NO_MEMORY;
1383 /***************************************************************************
1384 Purely internal function for make_server_info_info3
1385 Fill the sam account from getpwnam
1386 ***************************************************************************/
1387 static NTSTATUS fill_sam_account(TALLOC_CTX *mem_ctx,
1389 const char *username,
1390 char **found_username,
1391 uid_t *uid, gid_t *gid,
1392 struct samu *account,
1393 BOOL *username_was_mapped)
1396 fstring dom_user, lower_username;
1397 fstring real_username;
1398 struct passwd *passwd;
1400 fstrcpy( lower_username, username );
1401 strlower_m( lower_username );
1403 fstr_sprintf(dom_user, "%s%c%s", domain, *lp_winbind_separator(),
1406 /* Get the passwd struct. Try to create the account is necessary. */
1408 *username_was_mapped = map_username( dom_user );
1410 if ( !(passwd = smb_getpwnam( NULL, dom_user, real_username, True )) )
1411 return NT_STATUS_NO_SUCH_USER;
1413 *uid = passwd->pw_uid;
1414 *gid = passwd->pw_gid;
1416 /* This is pointless -- there is no suport for differing
1417 unix and windows names. Make sure to always store the
1418 one we actually looked up and succeeded. Have I mentioned
1419 why I hate the 'winbind use default domain' parameter?
1422 *found_username = talloc_strdup( mem_ctx, real_username );
1424 DEBUG(5,("fill_sam_account: located username was [%s]\n", *found_username));
1426 nt_status = samu_set_unix( account, passwd );
1428 TALLOC_FREE(passwd);
1433 /****************************************************************************
1434 Wrapper to allow the getpwnam() call to strip the domain name and
1435 try again in case a local UNIX user is already there. Also run through
1436 the username if we fallback to the username only.
1437 ****************************************************************************/
1439 struct passwd *smb_getpwnam( TALLOC_CTX *mem_ctx, char *domuser,
1440 fstring save_username, BOOL create )
1442 struct passwd *pw = NULL;
1446 /* we only save a copy of the username it has been mangled
1447 by winbindd use default domain */
1449 save_username[0] = '\0';
1451 /* don't call map_username() here since it has to be done higher
1452 up the stack so we don't call it mutliple times */
1454 fstrcpy( username, domuser );
1456 p = strchr_m( username, *lp_winbind_separator() );
1458 /* code for a DOMAIN\user string */
1461 fstring strip_username;
1463 pw = Get_Pwnam_alloc( mem_ctx, domuser );
1465 /* make sure we get the case of the username correct */
1466 /* work around 'winbind use default domain = yes' */
1468 if ( !strchr_m( pw->pw_name, *lp_winbind_separator() ) ) {
1471 /* split the domain and username into 2 strings */
1475 fstr_sprintf(save_username, "%s%c%s", domain, *lp_winbind_separator(), pw->pw_name);
1478 fstrcpy( save_username, pw->pw_name );
1484 /* setup for lookup of just the username */
1485 /* remember that p and username are overlapping memory */
1488 fstrcpy( strip_username, p );
1489 fstrcpy( username, strip_username );
1492 /* just lookup a plain username */
1494 pw = Get_Pwnam_alloc(mem_ctx, username);
1496 /* Create local user if requested but only if winbindd
1497 is not running. We need to protect against cases
1498 where winbindd is failing and then prematurely
1499 creating users in /etc/passwd */
1501 if ( !pw && create && !winbind_ping() ) {
1502 /* Don't add a machine account. */
1503 if (username[strlen(username)-1] == '$')
1506 smb_create_user(NULL, username, NULL);
1507 pw = Get_Pwnam_alloc(mem_ctx, username);
1510 /* one last check for a valid passwd struct */
1513 fstrcpy( save_username, pw->pw_name );
1518 /***************************************************************************
1519 Make a server_info struct from the info3 returned by a domain logon
1520 ***************************************************************************/
1522 NTSTATUS make_server_info_info3(TALLOC_CTX *mem_ctx,
1523 const char *sent_nt_username,
1525 auth_serversupplied_info **server_info,
1526 NET_USER_INFO_3 *info3)
1528 static const char zeros[16];
1530 NTSTATUS nt_status = NT_STATUS_OK;
1531 char *found_username;
1532 const char *nt_domain;
1533 const char *nt_username;
1534 struct samu *sam_account = NULL;
1537 BOOL username_was_mapped;
1544 auth_serversupplied_info *result;
1547 Here is where we should check the list of
1548 trusted domains, and verify that the SID
1552 sid_copy(&user_sid, &info3->dom_sid.sid);
1553 if (!sid_append_rid(&user_sid, info3->user_rid)) {
1554 return NT_STATUS_INVALID_PARAMETER;
1557 sid_copy(&group_sid, &info3->dom_sid.sid);
1558 if (!sid_append_rid(&group_sid, info3->group_rid)) {
1559 return NT_STATUS_INVALID_PARAMETER;
1562 if (!(nt_username = unistr2_tdup(mem_ctx, &(info3->uni_user_name)))) {
1563 /* If the server didn't give us one, just use the one we sent
1565 nt_username = sent_nt_username;
1568 if (!(nt_domain = unistr2_tdup(mem_ctx, &(info3->uni_logon_dom)))) {
1569 /* If the server didn't give us one, just use the one we sent
1574 /* try to fill the SAM account.. If getpwnam() fails, then try the
1575 add user script (2.2.x behavior).
1577 We use the _unmapped_ username here in an attempt to provide
1578 consistent username mapping behavior between kerberos and NTLM[SSP]
1579 authentication in domain mode security. I.E. Username mapping
1580 should be applied to the fully qualified username
1581 (e.g. DOMAIN\user) and not just the login name. Yes this means we
1582 called map_username() unnecessarily in make_user_info_map() but
1583 that is how the current code is designed. Making the change here
1584 is the least disruptive place. -- jerry */
1586 if ( !(sam_account = samu_new( NULL )) ) {
1587 return NT_STATUS_NO_MEMORY;
1590 /* this call will try to create the user if necessary */
1592 nt_status = fill_sam_account(mem_ctx, nt_domain, sent_nt_username,
1593 &found_username, &uid, &gid, sam_account,
1594 &username_was_mapped);
1597 /* if we still don't have a valid unix account check for
1598 'map to guest = bad uid' */
1600 if (!NT_STATUS_IS_OK(nt_status)) {
1601 TALLOC_FREE( sam_account );
1602 if ( lp_map_to_guest() == MAP_TO_GUEST_ON_BAD_UID ) {
1603 make_server_info_guest(server_info);
1604 return NT_STATUS_OK;
1609 if (!pdb_set_nt_username(sam_account, nt_username, PDB_CHANGED)) {
1610 TALLOC_FREE(sam_account);
1611 return NT_STATUS_NO_MEMORY;
1614 if (!pdb_set_username(sam_account, nt_username, PDB_CHANGED)) {
1615 TALLOC_FREE(sam_account);
1616 return NT_STATUS_NO_MEMORY;
1619 if (!pdb_set_domain(sam_account, nt_domain, PDB_CHANGED)) {
1620 TALLOC_FREE(sam_account);
1621 return NT_STATUS_NO_MEMORY;
1624 if (!pdb_set_user_sid(sam_account, &user_sid, PDB_CHANGED)) {
1625 TALLOC_FREE(sam_account);
1626 return NT_STATUS_UNSUCCESSFUL;
1629 if (!pdb_set_group_sid(sam_account, &group_sid, PDB_CHANGED)) {
1630 TALLOC_FREE(sam_account);
1631 return NT_STATUS_UNSUCCESSFUL;
1634 if (!pdb_set_fullname(sam_account,
1635 unistr2_static(&(info3->uni_full_name)),
1637 TALLOC_FREE(sam_account);
1638 return NT_STATUS_NO_MEMORY;
1641 if (!pdb_set_logon_script(sam_account,
1642 unistr2_static(&(info3->uni_logon_script)),
1644 TALLOC_FREE(sam_account);
1645 return NT_STATUS_NO_MEMORY;
1648 if (!pdb_set_profile_path(sam_account,
1649 unistr2_static(&(info3->uni_profile_path)),
1651 TALLOC_FREE(sam_account);
1652 return NT_STATUS_NO_MEMORY;
1655 if (!pdb_set_homedir(sam_account,
1656 unistr2_static(&(info3->uni_home_dir)),
1658 TALLOC_FREE(sam_account);
1659 return NT_STATUS_NO_MEMORY;
1662 if (!pdb_set_dir_drive(sam_account,
1663 unistr2_static(&(info3->uni_dir_drive)),
1665 TALLOC_FREE(sam_account);
1666 return NT_STATUS_NO_MEMORY;
1669 if (!pdb_set_acct_ctrl(sam_account, info3->acct_flags, PDB_CHANGED)) {
1670 TALLOC_FREE(sam_account);
1671 return NT_STATUS_NO_MEMORY;
1674 result = make_server_info(NULL);
1675 if (result == NULL) {
1676 DEBUG(4, ("make_server_info failed!\n"));
1677 TALLOC_FREE(sam_account);
1678 return NT_STATUS_NO_MEMORY;
1681 /* save this here to _net_sam_logon() doesn't fail (it assumes a
1682 valid struct samu) */
1684 result->sam_account = sam_account;
1685 result->unix_name = talloc_strdup(result, found_username);
1687 /* Fill in the unix info we found on the way */
1692 /* Create a 'combined' list of all SIDs we might want in the SD */
1694 result->num_sids = 0;
1695 result->sids = NULL;
1697 /* and create (by appending rids) the 'domain' sids */
1699 for (i = 0; i < info3->num_groups2; i++) {
1701 if (!sid_compose(&sid, &info3->dom_sid.sid,
1702 info3->gids[i].g_rid)) {
1703 DEBUG(3,("could not append additional group rid "
1704 "0x%x\n", info3->gids[i].g_rid));
1705 TALLOC_FREE(result);
1706 return NT_STATUS_INVALID_PARAMETER;
1708 add_sid_to_array(result, &sid, &result->sids,
1712 /* Copy 'other' sids. We need to do sid filtering here to
1713 prevent possible elevation of privileges. See:
1715 http://www.microsoft.com/windows2000/techinfo/administration/security/sidfilter.asp
1718 for (i = 0; i < info3->num_other_sids; i++) {
1719 add_sid_to_array(result, &info3->other_sids[i].sid,
1724 result->login_server = unistr2_tdup(result,
1725 &(info3->uni_logon_srv));
1727 /* ensure we are never given NULL session keys */
1729 if (memcmp(info3->user_sess_key, zeros, sizeof(zeros)) == 0) {
1730 result->user_session_key = data_blob(NULL, 0);
1732 result->user_session_key = data_blob_talloc(
1733 result, info3->user_sess_key,
1734 sizeof(info3->user_sess_key));
1737 if (memcmp(info3->lm_sess_key, zeros, 8) == 0) {
1738 result->lm_session_key = data_blob(NULL, 0);
1740 result->lm_session_key = data_blob_talloc(
1741 result, info3->lm_sess_key,
1742 sizeof(info3->lm_sess_key));
1745 result->was_mapped = username_was_mapped;
1747 *server_info = result;
1749 return NT_STATUS_OK;
1752 /***************************************************************************
1753 Free a user_info struct
1754 ***************************************************************************/
1756 void free_user_info(auth_usersupplied_info **user_info)
1758 DEBUG(5,("attempting to free (and zero) a user_info structure\n"));
1759 if (*user_info != NULL) {
1760 if ((*user_info)->smb_name) {
1761 DEBUG(10,("structure was created for %s\n",
1762 (*user_info)->smb_name));
1764 SAFE_FREE((*user_info)->smb_name);
1765 SAFE_FREE((*user_info)->internal_username);
1766 SAFE_FREE((*user_info)->client_domain);
1767 SAFE_FREE((*user_info)->domain);
1768 SAFE_FREE((*user_info)->wksta_name);
1769 data_blob_free(&(*user_info)->lm_resp);
1770 data_blob_free(&(*user_info)->nt_resp);
1771 data_blob_clear_free(&(*user_info)->lm_interactive_pwd);
1772 data_blob_clear_free(&(*user_info)->nt_interactive_pwd);
1773 data_blob_clear_free(&(*user_info)->plaintext_password);
1774 ZERO_STRUCT(**user_info);
1776 SAFE_FREE(*user_info);
1779 /***************************************************************************
1780 Make an auth_methods struct
1781 ***************************************************************************/
1783 BOOL make_auth_methods(struct auth_context *auth_context, auth_methods **auth_method)
1785 if (!auth_context) {
1786 smb_panic("no auth_context supplied to "
1787 "make_auth_methods()!\n");
1791 smb_panic("make_auth_methods: pointer to auth_method pointer "
1795 *auth_method = TALLOC_P(auth_context->mem_ctx, auth_methods);
1796 if (!*auth_method) {
1797 DEBUG(0,("make_auth_method: malloc failed!\n"));
1800 ZERO_STRUCTP(*auth_method);
1805 /****************************************************************************
1806 Duplicate a SID token.
1807 ****************************************************************************/
1809 NT_USER_TOKEN *dup_nt_token(TALLOC_CTX *mem_ctx, NT_USER_TOKEN *ptoken)
1811 NT_USER_TOKEN *token;
1816 token = TALLOC_P(mem_ctx, NT_USER_TOKEN);
1817 if (token == NULL) {
1818 DEBUG(0, ("talloc failed\n"));
1822 token->user_sids = talloc_memdup(token, ptoken->user_sids,
1823 sizeof(DOM_SID) * ptoken->num_sids );
1825 if ((ptoken->user_sids != NULL) && (token->user_sids == NULL)) {
1826 DEBUG(0, ("talloc_memdup failed\n"));
1831 token->num_sids = ptoken->num_sids;
1833 /* copy the privileges; don't consider failure to be critical here */
1835 if ( !se_priv_copy( &token->privileges, &ptoken->privileges ) ) {
1836 DEBUG(0,("dup_nt_token: Failure to copy SE_PRIV!. "
1837 "Continuing with 0 privileges assigned.\n"));
1843 /****************************************************************************
1844 Check for a SID in an NT_USER_TOKEN
1845 ****************************************************************************/
1847 BOOL nt_token_check_sid ( const DOM_SID *sid, const NT_USER_TOKEN *token )
1851 if ( !sid || !token )
1854 for ( i=0; i<token->num_sids; i++ ) {
1855 if ( sid_equal( sid, &token->user_sids[i] ) )
1862 BOOL nt_token_check_domain_rid( NT_USER_TOKEN *token, uint32 rid )
1866 /* if we are a domain member, the get the domain SID, else for
1867 a DC or standalone server, use our own SID */
1869 if ( lp_server_role() == ROLE_DOMAIN_MEMBER ) {
1870 if ( !secrets_fetch_domain_sid( lp_workgroup(),
1872 DEBUG(1,("nt_token_check_domain_rid: Cannot lookup "
1873 "SID for domain [%s]\n", lp_workgroup()));
1878 sid_copy( &domain_sid, get_global_sam_sid() );
1880 sid_append_rid( &domain_sid, rid );
1882 return nt_token_check_sid( &domain_sid, token );\
1886 * Verify whether or not given domain is trusted.
1888 * @param domain_name name of the domain to be verified
1889 * @return true if domain is one of the trusted once or
1890 * false if otherwise
1893 BOOL is_trusted_domain(const char* dom_name)
1895 DOM_SID trustdom_sid;
1898 /* no trusted domains for a standalone server */
1900 if ( lp_server_role() == ROLE_STANDALONE )
1903 /* if we are a DC, then check for a direct trust relationships */
1907 DEBUG (5,("is_trusted_domain: Checking for domain trust with "
1908 "[%s]\n", dom_name ));
1909 ret = secrets_fetch_trusted_domain_password(dom_name, NULL,
1918 /* If winbind is around, ask it */
1920 result = wb_is_trusted_domain(dom_name);
1922 if (result == NSS_STATUS_SUCCESS) {
1926 if (result == NSS_STATUS_NOTFOUND) {
1927 /* winbind could not find the domain */
1931 /* The only other possible result is that winbind is not up
1932 and running. We need to update the trustdom_cache
1935 update_trustdom_cache();
1938 /* now the trustdom cache should be available a DC could still
1939 * have a transitive trust so fall back to the cache of trusted
1940 * domains (like a domain member would use */
1942 if ( trustdom_cache_fetch(dom_name, &trustdom_sid) ) {