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 )
693 /* nothing to do if we aren't in a domain */
695 if ( !(IS_DC || lp_server_role()==ROLE_DOMAIN_MEMBER) ) {
699 /* Find the Domain Admins SID */
702 sid_copy( &domadm, get_global_sam_sid() );
704 if ( !secrets_fetch_domain_sid( lp_workgroup(), &domadm ) )
705 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
707 sid_append_rid( &domadm, DOMAIN_GROUP_RID_ADMINS );
709 /* Add Administrators if the user beloongs to Domain Admins */
711 if ( nt_token_check_sid( &domadm, token ) ) {
712 add_sid_to_array(token, &global_sid_Builtin_Administrators,
713 &token->user_sids, &token->num_sids);
719 /*******************************************************************
720 *******************************************************************/
722 static NTSTATUS create_builtin_users( void )
727 status = pdb_create_builtin_alias( BUILTIN_ALIAS_RID_USERS );
728 if ( !NT_STATUS_IS_OK(status) ) {
729 DEBUG(0,("create_builtin_users: Failed to create Users\n"));
733 /* add domain users */
734 if ((IS_DC || (lp_server_role() == ROLE_DOMAIN_MEMBER))
735 && secrets_fetch_domain_sid(lp_workgroup(), &dom_users))
737 sid_append_rid(&dom_users, DOMAIN_GROUP_RID_USERS );
738 status = pdb_add_aliasmem( &global_sid_Builtin_Users, &dom_users);
739 if ( !NT_STATUS_IS_OK(status) ) {
740 DEBUG(0,("create_builtin_administrators: Failed to add Domain Users to"
749 /*******************************************************************
750 *******************************************************************/
752 static NTSTATUS create_builtin_administrators( void )
755 DOM_SID dom_admins, root_sid;
757 enum SID_NAME_USE type;
761 status = pdb_create_builtin_alias( BUILTIN_ALIAS_RID_ADMINS );
762 if ( !NT_STATUS_IS_OK(status) ) {
763 DEBUG(0,("create_builtin_administrators: Failed to create Administrators\n"));
767 /* add domain admins */
768 if ((IS_DC || (lp_server_role() == ROLE_DOMAIN_MEMBER))
769 && secrets_fetch_domain_sid(lp_workgroup(), &dom_admins))
771 sid_append_rid(&dom_admins, DOMAIN_GROUP_RID_ADMINS);
772 status = pdb_add_aliasmem( &global_sid_Builtin_Administrators, &dom_admins );
773 if ( !NT_STATUS_IS_OK(status) ) {
774 DEBUG(0,("create_builtin_administrators: Failed to add Domain Admins"
775 " Administrators\n"));
781 if ( (ctx = talloc_init("create_builtin_administrators")) == NULL ) {
782 return NT_STATUS_NO_MEMORY;
784 fstr_sprintf( root_name, "%s\\root", get_global_sam_name() );
785 ret = lookup_name( ctx, root_name, 0, NULL, NULL, &root_sid, &type );
789 status = pdb_add_aliasmem( &global_sid_Builtin_Administrators, &root_sid );
790 if ( !NT_STATUS_IS_OK(status) ) {
791 DEBUG(0,("create_builtin_administrators: Failed to add root"
792 " Administrators\n"));
800 /*******************************************************************
801 Create a NT token for the user, expanding local aliases
802 *******************************************************************/
804 static struct nt_user_token *create_local_nt_token(TALLOC_CTX *mem_ctx,
805 const DOM_SID *user_sid,
806 const DOM_SID *group_sid,
809 const DOM_SID *groupsids)
812 struct nt_user_token *result = NULL;
817 tmp_ctx = talloc_new(mem_ctx);
818 if (tmp_ctx == NULL) {
819 DEBUG(0, ("talloc_new failed\n"));
823 result = TALLOC_ZERO_P(tmp_ctx, NT_USER_TOKEN);
824 if (result == NULL) {
825 DEBUG(0, ("talloc failed\n"));
829 /* Add the user and primary group sid */
831 add_sid_to_array(result, user_sid,
832 &result->user_sids, &result->num_sids);
833 add_sid_to_array(result, group_sid,
834 &result->user_sids, &result->num_sids);
836 /* Add in BUILTIN sids */
838 add_sid_to_array(result, &global_sid_World,
839 &result->user_sids, &result->num_sids);
840 add_sid_to_array(result, &global_sid_Network,
841 &result->user_sids, &result->num_sids);
844 add_sid_to_array(result, &global_sid_Builtin_Guests,
845 &result->user_sids, &result->num_sids);
847 add_sid_to_array(result, &global_sid_Authenticated_Users,
848 &result->user_sids, &result->num_sids);
851 /* Now the SIDs we got from authentication. These are the ones from
852 * the info3 struct or from the pdb_enum_group_memberships, depending
853 * on who authenticated the user. */
855 for (i=0; i<num_groupsids; i++) {
856 add_sid_to_array_unique(result, &groupsids[i],
857 &result->user_sids, &result->num_sids);
860 /* Deal with the BUILTIN\Administrators group. If the SID can
861 be resolved then assume that the add_aliasmem( S-1-5-32 )
864 if ( !sid_to_gid( &global_sid_Builtin_Administrators, &gid ) ) {
865 /* We can only create a mapping if winbind is running
866 and the nested group functionality has been enabled */
868 if ( lp_winbind_nested_groups() && winbind_ping() ) {
870 status = create_builtin_administrators( );
871 if ( !NT_STATUS_IS_OK(status) ) {
872 DEBUG(0,("create_local_nt_token: Failed to create BUILTIN\\Administrators group!\n"));
873 /* don't fail, just log the message */
878 status = add_builtin_administrators( tmp_ctx, result );
879 if ( !NT_STATUS_IS_OK(status) ) {
880 /* just log a complaint but do not fail */
881 DEBUG(3,("create_local_nt_token: failed to check for local Administrators"
882 " membership (%s)\n", nt_errstr(status)));
887 /* Deal with the BUILTIN\Users group. If the SID can
888 be resolved then assume that the add_aliasmem( S-1-5-32 )
891 if ( !sid_to_gid( &global_sid_Builtin_Users, &gid ) ) {
892 /* We can only create a mapping if winbind is running
893 and the nested group functionality has been enabled */
895 if ( lp_winbind_nested_groups() && winbind_ping() ) {
897 status = create_builtin_users( );
898 if ( !NT_STATUS_IS_OK(status) ) {
899 DEBUG(0,("create_local_nt_token: Failed to create BUILTIN\\Administrators group!\n"));
900 /* don't fail, just log the message */
906 /* Deal with local groups */
908 if (lp_winbind_nested_groups()) {
910 /* Now add the aliases. First the one from our local SAM */
912 status = add_aliases(tmp_ctx, get_global_sam_sid(), result);
914 if (!NT_STATUS_IS_OK(status)) {
919 /* Finally the builtin ones */
921 status = add_aliases(tmp_ctx, &global_sid_Builtin, result);
923 if (!NT_STATUS_IS_OK(status)) {
930 get_privileges_for_sids(&result->privileges, result->user_sids,
933 talloc_steal(mem_ctx, result);
936 TALLOC_FREE(tmp_ctx);
941 * Create the token to use from server_info->sam_account and
942 * server_info->sids (the info3/sam groups). Find the unix gids.
945 NTSTATUS create_local_token(auth_serversupplied_info *server_info)
952 mem_ctx = talloc_new(NULL);
953 if (mem_ctx == NULL) {
954 DEBUG(0, ("talloc_new failed\n"));
955 return NT_STATUS_NO_MEMORY;
958 if (server_info->was_mapped) {
959 status = create_token_from_username(server_info,
960 server_info->unix_name,
964 &server_info->unix_name,
968 server_info->ptok = create_local_nt_token(
970 pdb_get_user_sid(server_info->sam_account),
971 pdb_get_group_sid(server_info->sam_account),
973 server_info->num_sids, server_info->sids);
974 status = server_info->ptok ?
975 NT_STATUS_OK : NT_STATUS_NO_SUCH_USER;
978 if (!NT_STATUS_IS_OK(status)) {
979 TALLOC_FREE(mem_ctx);
983 /* Convert the SIDs to gids. */
985 server_info->n_groups = 0;
986 server_info->groups = NULL;
988 /* Start at index 1, where the groups start. */
990 for (i=1; i<server_info->ptok->num_sids; i++) {
992 DOM_SID *sid = &server_info->ptok->user_sids[i];
994 if (!sid_to_gid(sid, &gid)) {
995 DEBUG(10, ("Could not convert SID %s to gid, "
996 "ignoring it\n", sid_string_static(sid)));
999 add_gid_to_array_unique(server_info, gid, &server_info->groups,
1000 &server_info->n_groups);
1003 debug_nt_user_token(DBGC_AUTH, 10, server_info->ptok);
1005 status = log_nt_token(mem_ctx, server_info->ptok);
1007 TALLOC_FREE(mem_ctx);
1012 * Create an artificial NT token given just a username. (Initially indended
1015 * We go through lookup_name() to avoid problems we had with 'winbind use
1020 * unmapped unix users: Go directly to nss to find the user's group.
1022 * A passdb user: The list of groups is provided by pdb_enum_group_memberships.
1024 * If the user is provided by winbind, the primary gid is set to "domain
1025 * users" of the user's domain. For an explanation why this is necessary, see
1026 * the thread starting at
1027 * http://lists.samba.org/archive/samba-technical/2006-January/044803.html.
1030 NTSTATUS create_token_from_username(TALLOC_CTX *mem_ctx, const char *username,
1032 uid_t *uid, gid_t *gid,
1033 char **found_username,
1034 struct nt_user_token **token)
1036 NTSTATUS result = NT_STATUS_NO_SUCH_USER;
1037 TALLOC_CTX *tmp_ctx;
1039 enum SID_NAME_USE type;
1041 DOM_SID primary_group_sid;
1042 DOM_SID *group_sids;
1043 size_t num_group_sids;
1045 tmp_ctx = talloc_new(NULL);
1046 if (tmp_ctx == NULL) {
1047 DEBUG(0, ("talloc_new failed\n"));
1048 return NT_STATUS_NO_MEMORY;
1051 if (!lookup_name(tmp_ctx, username, LOOKUP_NAME_ALL,
1052 NULL, NULL, &user_sid, &type)) {
1053 DEBUG(1, ("lookup_name for %s failed\n", username));
1057 if (type != SID_NAME_USER) {
1058 DEBUG(1, ("%s is a %s, not a user\n", username,
1059 sid_type_lookup(type)));
1063 if (!sid_to_uid(&user_sid, uid)) {
1064 DEBUG(1, ("sid_to_uid for %s (%s) failed\n",
1065 username, sid_string_static(&user_sid)));
1069 if (sid_check_is_in_our_domain(&user_sid)) {
1071 /* This is a passdb user, so ask passdb */
1073 struct samu *sam_acct = NULL;
1074 const DOM_SID *gr_sid = NULL;
1076 if ( !(sam_acct = samu_new( tmp_ctx )) ) {
1077 result = NT_STATUS_NO_MEMORY;
1081 if (!pdb_getsampwsid(sam_acct, &user_sid)) {
1082 DEBUG(1, ("pdb_getsampwsid(%s) for user %s failed\n",
1083 sid_string_static(&user_sid), username));
1084 DEBUGADD(1, ("Fall back to unix user %s\n", username));
1088 gr_sid = pdb_get_group_sid(sam_acct);
1093 sid_copy(&primary_group_sid, gr_sid);
1095 if (!sid_to_gid(&primary_group_sid, gid)) {
1096 DEBUG(1, ("sid_to_gid(%s) failed\n",
1097 sid_string_static(&primary_group_sid)));
1098 DEBUGADD(1, ("Fall back to unix user %s\n", username));
1102 result = pdb_enum_group_memberships(tmp_ctx, sam_acct,
1105 if (!NT_STATUS_IS_OK(result)) {
1106 DEBUG(10, ("enum_group_memberships failed for %s\n",
1108 DEBUGADD(1, ("Fall back to unix user %s\n", username));
1112 *found_username = talloc_strdup(mem_ctx,
1113 pdb_get_username(sam_acct));
1115 } else if (sid_check_is_in_unix_users(&user_sid)) {
1117 /* This is a unix user not in passdb. We need to ask nss
1118 * directly, without consulting passdb */
1120 struct passwd *pass;
1124 * This goto target is used as a fallback for the passdb
1125 * case. The concrete bug report is when passdb gave us an
1131 uid_to_unix_users_sid(*uid, &user_sid);
1133 pass = getpwuid_alloc(tmp_ctx, *uid);
1135 DEBUG(1, ("getpwuid(%d) for user %s failed\n",
1140 *gid = pass->pw_gid;
1141 gid_to_sid(&primary_group_sid, pass->pw_gid);
1143 if (!getgroups_unix_user(tmp_ctx, username, pass->pw_gid,
1144 &gids, &num_group_sids)) {
1145 DEBUG(1, ("getgroups_unix_user for user %s failed\n",
1150 group_sids = talloc_array(tmp_ctx, DOM_SID, num_group_sids);
1151 if (group_sids == NULL) {
1152 DEBUG(1, ("talloc_array failed\n"));
1153 result = NT_STATUS_NO_MEMORY;
1157 for (i=0; i<num_group_sids; i++) {
1158 gid_to_sid(&group_sids[i], gids[i]);
1160 *found_username = talloc_strdup(mem_ctx, pass->pw_name);
1164 /* This user is from winbind, force the primary gid to the
1165 * user's "domain users" group. Under certain circumstances
1166 * (user comes from NT4), this might be a loss of
1167 * information. But we can not rely on winbind getting the
1168 * correct info. AD might prohibit winbind looking up that
1173 sid_copy(&primary_group_sid, &user_sid);
1174 sid_split_rid(&primary_group_sid, &dummy);
1175 sid_append_rid(&primary_group_sid, DOMAIN_GROUP_RID_USERS);
1177 if (!sid_to_gid(&primary_group_sid, gid)) {
1178 DEBUG(1, ("sid_to_gid(%s) failed\n",
1179 sid_string_static(&primary_group_sid)));
1186 *found_username = talloc_strdup(mem_ctx, username);
1189 *token = create_local_nt_token(mem_ctx, &user_sid, &primary_group_sid,
1190 is_guest, num_group_sids, group_sids);
1192 if ((*token == NULL) || (*found_username == NULL)) {
1193 result = NT_STATUS_NO_MEMORY;
1197 result = NT_STATUS_OK;
1199 TALLOC_FREE(tmp_ctx);
1203 /***************************************************************************
1204 Build upon create_token_from_username:
1206 Expensive helper function to figure out whether a user given its name is
1207 member of a particular group.
1208 ***************************************************************************/
1209 BOOL user_in_group_sid(const char *username, const DOM_SID *group_sid)
1214 char *found_username;
1215 struct nt_user_token *token;
1218 TALLOC_CTX *mem_ctx;
1220 mem_ctx = talloc_new(NULL);
1221 if (mem_ctx == NULL) {
1222 DEBUG(0, ("talloc_new failed\n"));
1226 status = create_token_from_username(mem_ctx, username, False,
1227 &uid, &gid, &found_username,
1230 if (!NT_STATUS_IS_OK(status)) {
1231 DEBUG(10, ("could not create token for %s\n", username));
1235 result = nt_token_check_sid(group_sid, token);
1237 TALLOC_FREE(mem_ctx);
1242 BOOL user_in_group(const char *username, const char *groupname)
1244 TALLOC_CTX *mem_ctx;
1248 mem_ctx = talloc_new(NULL);
1249 if (mem_ctx == NULL) {
1250 DEBUG(0, ("talloc_new failed\n"));
1254 ret = lookup_name(mem_ctx, groupname, LOOKUP_NAME_ALL,
1255 NULL, NULL, &group_sid, NULL);
1256 TALLOC_FREE(mem_ctx);
1259 DEBUG(10, ("lookup_name for (%s) failed.\n", groupname));
1263 return user_in_group_sid(username, &group_sid);
1267 /***************************************************************************
1268 Make (and fill) a user_info struct from a 'struct passwd' by conversion
1270 ***************************************************************************/
1272 NTSTATUS make_server_info_pw(auth_serversupplied_info **server_info,
1273 char *unix_username,
1277 struct samu *sampass = NULL;
1279 auth_serversupplied_info *result;
1281 if ( !(sampass = samu_new( NULL )) ) {
1282 return NT_STATUS_NO_MEMORY;
1285 status = samu_set_unix( sampass, pwd );
1286 if (!NT_STATUS_IS_OK(status)) {
1290 result = make_server_info(NULL);
1291 if (result == NULL) {
1292 TALLOC_FREE(sampass);
1293 return NT_STATUS_NO_MEMORY;
1296 result->sam_account = sampass;
1297 result->unix_name = talloc_strdup(result, unix_username);
1298 result->uid = pwd->pw_uid;
1299 result->gid = pwd->pw_gid;
1301 status = pdb_enum_group_memberships(result, sampass,
1302 &result->sids, &gids,
1305 if (!NT_STATUS_IS_OK(status)) {
1306 DEBUG(10, ("pdb_enum_group_memberships failed: %s\n",
1307 nt_errstr(status)));
1308 TALLOC_FREE(result);
1312 /* For now we throw away the gids and convert via sid_to_gid
1313 * later. This needs fixing, but I'd like to get the code straight and
1317 *server_info = result;
1319 return NT_STATUS_OK;
1322 /***************************************************************************
1323 Make (and fill) a user_info struct for a guest login.
1324 This *must* succeed for smbd to start. If there is no mapping entry for
1325 the guest gid, then create one.
1326 ***************************************************************************/
1328 static NTSTATUS make_new_server_info_guest(auth_serversupplied_info **server_info)
1331 struct samu *sampass = NULL;
1334 static const char zeros[16];
1336 if ( !(sampass = samu_new( NULL )) ) {
1337 return NT_STATUS_NO_MEMORY;
1340 sid_copy(&guest_sid, get_global_sam_sid());
1341 sid_append_rid(&guest_sid, DOMAIN_USER_RID_GUEST);
1344 ret = pdb_getsampwsid(sampass, &guest_sid);
1348 TALLOC_FREE(sampass);
1349 return NT_STATUS_NO_SUCH_USER;
1352 status = make_server_info_sam(server_info, sampass);
1353 if (!NT_STATUS_IS_OK(status)) {
1354 TALLOC_FREE(sampass);
1358 (*server_info)->guest = True;
1360 status = create_local_token(*server_info);
1361 if (!NT_STATUS_IS_OK(status)) {
1362 DEBUG(10, ("create_local_token failed: %s\n",
1363 nt_errstr(status)));
1367 /* annoying, but the Guest really does have a session key, and it is
1369 (*server_info)->user_session_key = data_blob(zeros, sizeof(zeros));
1370 (*server_info)->lm_session_key = data_blob(zeros, sizeof(zeros));
1372 return NT_STATUS_OK;
1375 static auth_serversupplied_info *copy_serverinfo(auth_serversupplied_info *src)
1377 auth_serversupplied_info *dst;
1379 dst = make_server_info(NULL);
1384 dst->guest = src->guest;
1385 dst->uid = src->uid;
1386 dst->gid = src->gid;
1387 dst->n_groups = src->n_groups;
1388 if (src->n_groups != 0) {
1389 dst->groups = talloc_memdup(dst, src->groups,
1390 sizeof(gid_t)*dst->n_groups);
1396 dst->ptok = dup_nt_token(dst, src->ptok);
1403 dst->user_session_key = data_blob_talloc( dst, src->user_session_key.data,
1404 src->user_session_key.length);
1406 dst->lm_session_key = data_blob_talloc(dst, src->lm_session_key.data,
1407 src->lm_session_key.length);
1409 dst->sam_account = samu_new(NULL);
1410 if (!dst->sam_account) {
1415 if (!pdb_copy_sam_account(dst->sam_account, src->sam_account)) {
1420 dst->pam_handle = NULL;
1421 dst->unix_name = talloc_strdup(dst, src->unix_name);
1422 if (!dst->unix_name) {
1430 static auth_serversupplied_info *guest_info = NULL;
1432 BOOL init_guest_info(void)
1434 if (guest_info != NULL)
1437 return NT_STATUS_IS_OK(make_new_server_info_guest(&guest_info));
1440 NTSTATUS make_server_info_guest(auth_serversupplied_info **server_info)
1442 *server_info = copy_serverinfo(guest_info);
1443 return (*server_info != NULL) ? NT_STATUS_OK : NT_STATUS_NO_MEMORY;
1446 /***************************************************************************
1447 Purely internal function for make_server_info_info3
1448 Fill the sam account from getpwnam
1449 ***************************************************************************/
1450 static NTSTATUS fill_sam_account(TALLOC_CTX *mem_ctx,
1452 const char *username,
1453 char **found_username,
1454 uid_t *uid, gid_t *gid,
1455 struct samu *account,
1456 BOOL *username_was_mapped)
1459 fstring dom_user, lower_username;
1460 fstring real_username;
1461 struct passwd *passwd;
1463 fstrcpy( lower_username, username );
1464 strlower_m( lower_username );
1466 fstr_sprintf(dom_user, "%s%c%s", domain, *lp_winbind_separator(),
1469 /* Get the passwd struct. Try to create the account is necessary. */
1471 *username_was_mapped = map_username( dom_user );
1473 if ( !(passwd = smb_getpwnam( NULL, dom_user, real_username, True )) )
1474 return NT_STATUS_NO_SUCH_USER;
1476 *uid = passwd->pw_uid;
1477 *gid = passwd->pw_gid;
1479 /* This is pointless -- there is no suport for differing
1480 unix and windows names. Make sure to always store the
1481 one we actually looked up and succeeded. Have I mentioned
1482 why I hate the 'winbind use default domain' parameter?
1485 *found_username = talloc_strdup( mem_ctx, real_username );
1487 DEBUG(5,("fill_sam_account: located username was [%s]\n", *found_username));
1489 nt_status = samu_set_unix( account, passwd );
1491 TALLOC_FREE(passwd);
1496 /****************************************************************************
1497 Wrapper to allow the getpwnam() call to strip the domain name and
1498 try again in case a local UNIX user is already there. Also run through
1499 the username if we fallback to the username only.
1500 ****************************************************************************/
1502 struct passwd *smb_getpwnam( TALLOC_CTX *mem_ctx, char *domuser,
1503 fstring save_username, BOOL create )
1505 struct passwd *pw = NULL;
1509 /* we only save a copy of the username it has been mangled
1510 by winbindd use default domain */
1512 save_username[0] = '\0';
1514 /* don't call map_username() here since it has to be done higher
1515 up the stack so we don't call it mutliple times */
1517 fstrcpy( username, domuser );
1519 p = strchr_m( username, *lp_winbind_separator() );
1521 /* code for a DOMAIN\user string */
1524 fstring strip_username;
1526 pw = Get_Pwnam_alloc( mem_ctx, domuser );
1528 /* make sure we get the case of the username correct */
1529 /* work around 'winbind use default domain = yes' */
1531 if ( !strchr_m( pw->pw_name, *lp_winbind_separator() ) ) {
1534 /* split the domain and username into 2 strings */
1538 fstr_sprintf(save_username, "%s%c%s", domain, *lp_winbind_separator(), pw->pw_name);
1541 fstrcpy( save_username, pw->pw_name );
1547 /* setup for lookup of just the username */
1548 /* remember that p and username are overlapping memory */
1551 fstrcpy( strip_username, p );
1552 fstrcpy( username, strip_username );
1555 /* just lookup a plain username */
1557 pw = Get_Pwnam_alloc(mem_ctx, username);
1559 /* Create local user if requested but only if winbindd
1560 is not running. We need to protect against cases
1561 where winbindd is failing and then prematurely
1562 creating users in /etc/passwd */
1564 if ( !pw && create && !winbind_ping() ) {
1565 /* Don't add a machine account. */
1566 if (username[strlen(username)-1] == '$')
1569 smb_create_user(NULL, username, NULL);
1570 pw = Get_Pwnam_alloc(mem_ctx, username);
1573 /* one last check for a valid passwd struct */
1576 fstrcpy( save_username, pw->pw_name );
1581 /***************************************************************************
1582 Make a server_info struct from the info3 returned by a domain logon
1583 ***************************************************************************/
1585 NTSTATUS make_server_info_info3(TALLOC_CTX *mem_ctx,
1586 const char *sent_nt_username,
1588 auth_serversupplied_info **server_info,
1589 NET_USER_INFO_3 *info3)
1591 static const char zeros[16];
1593 NTSTATUS nt_status = NT_STATUS_OK;
1594 char *found_username;
1595 const char *nt_domain;
1596 const char *nt_username;
1597 struct samu *sam_account = NULL;
1600 BOOL username_was_mapped;
1607 auth_serversupplied_info *result;
1610 Here is where we should check the list of
1611 trusted domains, and verify that the SID
1615 sid_copy(&user_sid, &info3->dom_sid.sid);
1616 if (!sid_append_rid(&user_sid, info3->user_rid)) {
1617 return NT_STATUS_INVALID_PARAMETER;
1620 sid_copy(&group_sid, &info3->dom_sid.sid);
1621 if (!sid_append_rid(&group_sid, info3->group_rid)) {
1622 return NT_STATUS_INVALID_PARAMETER;
1625 if (!(nt_username = unistr2_tdup(mem_ctx, &(info3->uni_user_name)))) {
1626 /* If the server didn't give us one, just use the one we sent
1628 nt_username = sent_nt_username;
1631 if (!(nt_domain = unistr2_tdup(mem_ctx, &(info3->uni_logon_dom)))) {
1632 /* If the server didn't give us one, just use the one we sent
1637 /* try to fill the SAM account.. If getpwnam() fails, then try the
1638 add user script (2.2.x behavior).
1640 We use the _unmapped_ username here in an attempt to provide
1641 consistent username mapping behavior between kerberos and NTLM[SSP]
1642 authentication in domain mode security. I.E. Username mapping
1643 should be applied to the fully qualified username
1644 (e.g. DOMAIN\user) and not just the login name. Yes this means we
1645 called map_username() unnecessarily in make_user_info_map() but
1646 that is how the current code is designed. Making the change here
1647 is the least disruptive place. -- jerry */
1649 if ( !(sam_account = samu_new( NULL )) ) {
1650 return NT_STATUS_NO_MEMORY;
1653 /* this call will try to create the user if necessary */
1655 nt_status = fill_sam_account(mem_ctx, nt_domain, sent_nt_username,
1656 &found_username, &uid, &gid, sam_account,
1657 &username_was_mapped);
1660 /* if we still don't have a valid unix account check for
1661 'map to guest = bad uid' */
1663 if (!NT_STATUS_IS_OK(nt_status)) {
1664 TALLOC_FREE( sam_account );
1665 if ( lp_map_to_guest() == MAP_TO_GUEST_ON_BAD_UID ) {
1666 make_server_info_guest(server_info);
1667 return NT_STATUS_OK;
1672 if (!pdb_set_nt_username(sam_account, nt_username, PDB_CHANGED)) {
1673 TALLOC_FREE(sam_account);
1674 return NT_STATUS_NO_MEMORY;
1677 if (!pdb_set_username(sam_account, nt_username, PDB_CHANGED)) {
1678 TALLOC_FREE(sam_account);
1679 return NT_STATUS_NO_MEMORY;
1682 if (!pdb_set_domain(sam_account, nt_domain, PDB_CHANGED)) {
1683 TALLOC_FREE(sam_account);
1684 return NT_STATUS_NO_MEMORY;
1687 if (!pdb_set_user_sid(sam_account, &user_sid, PDB_CHANGED)) {
1688 TALLOC_FREE(sam_account);
1689 return NT_STATUS_UNSUCCESSFUL;
1692 if (!pdb_set_group_sid(sam_account, &group_sid, PDB_CHANGED)) {
1693 TALLOC_FREE(sam_account);
1694 return NT_STATUS_UNSUCCESSFUL;
1697 if (!pdb_set_fullname(sam_account,
1698 unistr2_static(&(info3->uni_full_name)),
1700 TALLOC_FREE(sam_account);
1701 return NT_STATUS_NO_MEMORY;
1704 if (!pdb_set_logon_script(sam_account,
1705 unistr2_static(&(info3->uni_logon_script)),
1707 TALLOC_FREE(sam_account);
1708 return NT_STATUS_NO_MEMORY;
1711 if (!pdb_set_profile_path(sam_account,
1712 unistr2_static(&(info3->uni_profile_path)),
1714 TALLOC_FREE(sam_account);
1715 return NT_STATUS_NO_MEMORY;
1718 if (!pdb_set_homedir(sam_account,
1719 unistr2_static(&(info3->uni_home_dir)),
1721 TALLOC_FREE(sam_account);
1722 return NT_STATUS_NO_MEMORY;
1725 if (!pdb_set_dir_drive(sam_account,
1726 unistr2_static(&(info3->uni_dir_drive)),
1728 TALLOC_FREE(sam_account);
1729 return NT_STATUS_NO_MEMORY;
1732 if (!pdb_set_acct_ctrl(sam_account, info3->acct_flags, PDB_CHANGED)) {
1733 TALLOC_FREE(sam_account);
1734 return NT_STATUS_NO_MEMORY;
1737 result = make_server_info(NULL);
1738 if (result == NULL) {
1739 DEBUG(4, ("make_server_info failed!\n"));
1740 TALLOC_FREE(sam_account);
1741 return NT_STATUS_NO_MEMORY;
1744 /* save this here to _net_sam_logon() doesn't fail (it assumes a
1745 valid struct samu) */
1747 result->sam_account = sam_account;
1748 result->unix_name = talloc_strdup(result, found_username);
1750 /* Fill in the unix info we found on the way */
1755 /* Create a 'combined' list of all SIDs we might want in the SD */
1757 result->num_sids = 0;
1758 result->sids = NULL;
1760 /* and create (by appending rids) the 'domain' sids */
1762 for (i = 0; i < info3->num_groups2; i++) {
1764 if (!sid_compose(&sid, &info3->dom_sid.sid,
1765 info3->gids[i].g_rid)) {
1766 DEBUG(3,("could not append additional group rid "
1767 "0x%x\n", info3->gids[i].g_rid));
1768 TALLOC_FREE(result);
1769 return NT_STATUS_INVALID_PARAMETER;
1771 add_sid_to_array(result, &sid, &result->sids,
1775 /* Copy 'other' sids. We need to do sid filtering here to
1776 prevent possible elevation of privileges. See:
1778 http://www.microsoft.com/windows2000/techinfo/administration/security/sidfilter.asp
1781 for (i = 0; i < info3->num_other_sids; i++) {
1782 add_sid_to_array(result, &info3->other_sids[i].sid,
1787 result->login_server = unistr2_tdup(result,
1788 &(info3->uni_logon_srv));
1790 /* ensure we are never given NULL session keys */
1792 if (memcmp(info3->user_sess_key, zeros, sizeof(zeros)) == 0) {
1793 result->user_session_key = data_blob(NULL, 0);
1795 result->user_session_key = data_blob_talloc(
1796 result, info3->user_sess_key,
1797 sizeof(info3->user_sess_key));
1800 if (memcmp(info3->lm_sess_key, zeros, 8) == 0) {
1801 result->lm_session_key = data_blob(NULL, 0);
1803 result->lm_session_key = data_blob_talloc(
1804 result, info3->lm_sess_key,
1805 sizeof(info3->lm_sess_key));
1808 result->was_mapped = username_was_mapped;
1810 *server_info = result;
1812 return NT_STATUS_OK;
1815 /***************************************************************************
1816 Free a user_info struct
1817 ***************************************************************************/
1819 void free_user_info(auth_usersupplied_info **user_info)
1821 DEBUG(5,("attempting to free (and zero) a user_info structure\n"));
1822 if (*user_info != NULL) {
1823 if ((*user_info)->smb_name) {
1824 DEBUG(10,("structure was created for %s\n",
1825 (*user_info)->smb_name));
1827 SAFE_FREE((*user_info)->smb_name);
1828 SAFE_FREE((*user_info)->internal_username);
1829 SAFE_FREE((*user_info)->client_domain);
1830 SAFE_FREE((*user_info)->domain);
1831 SAFE_FREE((*user_info)->wksta_name);
1832 data_blob_free(&(*user_info)->lm_resp);
1833 data_blob_free(&(*user_info)->nt_resp);
1834 data_blob_clear_free(&(*user_info)->lm_interactive_pwd);
1835 data_blob_clear_free(&(*user_info)->nt_interactive_pwd);
1836 data_blob_clear_free(&(*user_info)->plaintext_password);
1837 ZERO_STRUCT(**user_info);
1839 SAFE_FREE(*user_info);
1842 /***************************************************************************
1843 Make an auth_methods struct
1844 ***************************************************************************/
1846 BOOL make_auth_methods(struct auth_context *auth_context, auth_methods **auth_method)
1848 if (!auth_context) {
1849 smb_panic("no auth_context supplied to "
1850 "make_auth_methods()!\n");
1854 smb_panic("make_auth_methods: pointer to auth_method pointer "
1858 *auth_method = TALLOC_P(auth_context->mem_ctx, auth_methods);
1859 if (!*auth_method) {
1860 DEBUG(0,("make_auth_method: malloc failed!\n"));
1863 ZERO_STRUCTP(*auth_method);
1868 /****************************************************************************
1869 Duplicate a SID token.
1870 ****************************************************************************/
1872 NT_USER_TOKEN *dup_nt_token(TALLOC_CTX *mem_ctx, NT_USER_TOKEN *ptoken)
1874 NT_USER_TOKEN *token;
1879 token = TALLOC_P(mem_ctx, NT_USER_TOKEN);
1880 if (token == NULL) {
1881 DEBUG(0, ("talloc failed\n"));
1885 token->user_sids = talloc_memdup(token, ptoken->user_sids,
1886 sizeof(DOM_SID) * ptoken->num_sids );
1888 if ((ptoken->user_sids != NULL) && (token->user_sids == NULL)) {
1889 DEBUG(0, ("talloc_memdup failed\n"));
1894 token->num_sids = ptoken->num_sids;
1896 /* copy the privileges; don't consider failure to be critical here */
1898 if ( !se_priv_copy( &token->privileges, &ptoken->privileges ) ) {
1899 DEBUG(0,("dup_nt_token: Failure to copy SE_PRIV!. "
1900 "Continuing with 0 privileges assigned.\n"));
1906 /****************************************************************************
1907 Check for a SID in an NT_USER_TOKEN
1908 ****************************************************************************/
1910 BOOL nt_token_check_sid ( const DOM_SID *sid, const NT_USER_TOKEN *token )
1914 if ( !sid || !token )
1917 for ( i=0; i<token->num_sids; i++ ) {
1918 if ( sid_equal( sid, &token->user_sids[i] ) )
1925 BOOL nt_token_check_domain_rid( NT_USER_TOKEN *token, uint32 rid )
1929 /* if we are a domain member, the get the domain SID, else for
1930 a DC or standalone server, use our own SID */
1932 if ( lp_server_role() == ROLE_DOMAIN_MEMBER ) {
1933 if ( !secrets_fetch_domain_sid( lp_workgroup(),
1935 DEBUG(1,("nt_token_check_domain_rid: Cannot lookup "
1936 "SID for domain [%s]\n", lp_workgroup()));
1941 sid_copy( &domain_sid, get_global_sam_sid() );
1943 sid_append_rid( &domain_sid, rid );
1945 return nt_token_check_sid( &domain_sid, token );\
1949 * Verify whether or not given domain is trusted.
1951 * @param domain_name name of the domain to be verified
1952 * @return true if domain is one of the trusted once or
1953 * false if otherwise
1956 BOOL is_trusted_domain(const char* dom_name)
1958 DOM_SID trustdom_sid;
1961 /* no trusted domains for a standalone server */
1963 if ( lp_server_role() == ROLE_STANDALONE )
1966 /* if we are a DC, then check for a direct trust relationships */
1970 DEBUG (5,("is_trusted_domain: Checking for domain trust with "
1971 "[%s]\n", dom_name ));
1972 ret = secrets_fetch_trusted_domain_password(dom_name, NULL,
1981 /* If winbind is around, ask it */
1983 result = wb_is_trusted_domain(dom_name);
1985 if (result == NSS_STATUS_SUCCESS) {
1989 if (result == NSS_STATUS_NOTFOUND) {
1990 /* winbind could not find the domain */
1994 /* The only other possible result is that winbind is not up
1995 and running. We need to update the trustdom_cache
1998 update_trustdom_cache();
2001 /* now the trustdom cache should be available a DC could still
2002 * have a transitive trust so fall back to the cache of trusted
2003 * domains (like a domain member would use */
2005 if ( trustdom_cache_fetch(dom_name, &trustdom_sid) ) {