2 Unix SMB/CIFS implementation.
3 Password and authentication handling
4 Copyright (C) Jeremy Allison 1996-2001
5 Copyright (C) Luke Kenneth Casson Leighton 1996-1998
6 Copyright (C) Gerald (Jerry) Carter 2000-2001
7 Copyright (C) Andrew Bartlett 2001-2002
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 #define DBGC_CLASS DBGC_PASSDB
30 * This is set on startup - it defines the SID for this
31 * machine, and therefore the SAM database for which it is
35 /************************************************************
36 Fill the SAM_ACCOUNT with default values.
37 ***********************************************************/
39 static void pdb_fill_default_sam(SAM_ACCOUNT *user)
41 ZERO_STRUCT(user->private); /* Don't touch the talloc context */
43 /* no initial methods */
46 /* Don't change these timestamp settings without a good reason.
47 They are important for NT member server compatibility. */
49 user->private.uid = user->private.gid = -1;
51 user->private.logon_time = (time_t)0;
52 user->private.pass_last_set_time = (time_t)0;
53 user->private.pass_can_change_time = (time_t)0;
54 user->private.logoff_time =
55 user->private.kickoff_time =
56 user->private.pass_must_change_time = get_time_t_max();
57 user->private.unknown_3 = 0x00ffffff; /* don't know */
58 user->private.logon_divs = 168; /* hours per week */
59 user->private.hours_len = 21; /* 21 times 8 bits = 168 */
60 memset(user->private.hours, 0xff, user->private.hours_len); /* available at all hours */
61 user->private.unknown_5 = 0x00000000; /* don't know */
62 user->private.unknown_6 = 0x000004ec; /* don't know */
64 /* Some parts of samba strlen their pdb_get...() returns,
65 so this keeps the interface unchanged for now. */
67 user->private.username = "";
68 user->private.domain = "";
69 user->private.nt_username = "";
70 user->private.full_name = "";
71 user->private.home_dir = "";
72 user->private.logon_script = "";
73 user->private.profile_path = "";
74 user->private.acct_desc = "";
75 user->private.workstations = "";
76 user->private.unknown_str = "";
77 user->private.munged_dial = "";
79 user->private.plaintext_pw = NULL;
83 static void destroy_pdb_talloc(SAM_ACCOUNT **user)
86 data_blob_clear_free(&((*user)->private.lm_pw));
87 data_blob_clear_free(&((*user)->private.nt_pw));
89 if((*user)->private.plaintext_pw!=NULL)
90 memset((*user)->private.plaintext_pw,'\0',strlen((*user)->private.plaintext_pw));
91 talloc_destroy((*user)->mem_ctx);
97 /**********************************************************************
98 Alloc memory and initialises a struct sam_passwd on supplied mem_ctx.
99 ***********************************************************************/
101 NTSTATUS pdb_init_sam_talloc(TALLOC_CTX *mem_ctx, SAM_ACCOUNT **user)
104 DEBUG(0,("pdb_init_sam_talloc: SAM_ACCOUNT was non NULL\n"));
106 smb_panic("non-NULL pointer passed to pdb_init_sam\n");
108 return NT_STATUS_UNSUCCESSFUL;
112 DEBUG(0,("pdb_init_sam_talloc: mem_ctx was NULL!\n"));
113 return NT_STATUS_UNSUCCESSFUL;
116 *user=(SAM_ACCOUNT *)talloc(mem_ctx, sizeof(SAM_ACCOUNT));
119 DEBUG(0,("pdb_init_sam_talloc: error while allocating memory\n"));
120 return NT_STATUS_NO_MEMORY;
123 (*user)->mem_ctx = mem_ctx;
125 (*user)->free_fn = NULL;
127 pdb_fill_default_sam(*user);
133 /*************************************************************
134 Alloc memory and initialises a struct sam_passwd.
135 ************************************************************/
137 NTSTATUS pdb_init_sam(SAM_ACCOUNT **user)
142 mem_ctx = talloc_init_named("passdb internal SAM_ACCOUNT allocation");
145 DEBUG(0,("pdb_init_sam: error while doing talloc_init()\n"));
146 return NT_STATUS_NO_MEMORY;
149 if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam_talloc(mem_ctx, user))) {
150 talloc_destroy(mem_ctx);
154 (*user)->free_fn = destroy_pdb_talloc;
160 /*************************************************************
161 Initialises a struct sam_passwd with sane values.
162 ************************************************************/
164 NTSTATUS pdb_fill_sam_pw(SAM_ACCOUNT *sam_account, const struct passwd *pwd)
168 const char *guest_account = lp_guestaccount();
169 if (!(guest_account && *guest_account)) {
170 DEBUG(1, ("NULL guest account!?!?\n"));
171 return NT_STATUS_UNSUCCESSFUL;
175 return NT_STATUS_UNSUCCESSFUL;
178 pdb_fill_default_sam(sam_account);
180 pdb_set_username(sam_account, pwd->pw_name, PDB_SET);
181 pdb_set_fullname(sam_account, pwd->pw_gecos, PDB_SET);
183 pdb_set_unix_homedir(sam_account, pwd->pw_dir, PDB_SET);
185 pdb_set_domain (sam_account, lp_workgroup(), PDB_DEFAULT);
187 pdb_set_uid(sam_account, pwd->pw_uid, PDB_SET);
188 pdb_set_gid(sam_account, pwd->pw_gid, PDB_SET);
190 /* When we get a proper uid -> SID and SID -> uid allocation
191 mechinism, we should call it here.
193 We can't just set this to 0 or allow it only to be filled
194 in when added to the backend, becouse the user's SID
195 may already be in security descriptors etc.
197 -- abartlet 11-May-02
201 /* Ensure this *must* be set right */
202 if (strcmp(pwd->pw_name, guest_account) == 0) {
203 if (!pdb_set_user_sid_from_rid(sam_account, DOMAIN_USER_RID_GUEST, PDB_DEFAULT)) {
204 return NT_STATUS_UNSUCCESSFUL;
206 if (!pdb_set_group_sid_from_rid(sam_account, DOMAIN_GROUP_RID_GUESTS, PDB_DEFAULT)) {
207 return NT_STATUS_UNSUCCESSFUL;
211 if (!pdb_set_user_sid_from_rid(sam_account,
212 fallback_pdb_uid_to_user_rid(pwd->pw_uid), PDB_SET)) {
213 DEBUG(0,("Can't set User SID from RID!\n"));
214 return NT_STATUS_INVALID_PARAMETER;
217 /* call the mapping code here */
218 if(pdb_getgrgid(&map, pwd->pw_gid, MAPPING_WITHOUT_PRIV)) {
219 if (!pdb_set_group_sid(sam_account,&map.sid, PDB_SET)){
220 DEBUG(0,("Can't set Group SID!\n"));
221 return NT_STATUS_INVALID_PARAMETER;
225 if (!pdb_set_group_sid_from_rid(sam_account,pdb_gid_to_group_rid(pwd->pw_gid), PDB_SET)) {
226 DEBUG(0,("Can't set Group SID\n"));
227 return NT_STATUS_INVALID_PARAMETER;
232 /* check if this is a user account or a machine account */
233 if (pwd->pw_name[strlen(pwd->pw_name)-1] != '$')
235 pdb_set_profile_path(sam_account,
236 talloc_sub_specified((sam_account)->mem_ctx,
238 pwd->pw_name, global_myname(),
239 pwd->pw_uid, pwd->pw_gid),
242 pdb_set_homedir(sam_account,
243 talloc_sub_specified((sam_account)->mem_ctx,
245 pwd->pw_name, global_myname(),
246 pwd->pw_uid, pwd->pw_gid),
249 pdb_set_dir_drive(sam_account,
250 talloc_sub_specified((sam_account)->mem_ctx,
252 pwd->pw_name, global_myname(),
253 pwd->pw_uid, pwd->pw_gid),
256 pdb_set_logon_script(sam_account,
257 talloc_sub_specified((sam_account)->mem_ctx,
259 pwd->pw_name, global_myname(),
260 pwd->pw_uid, pwd->pw_gid),
262 if (!pdb_set_acct_ctrl(sam_account, ACB_NORMAL, PDB_DEFAULT)) {
263 DEBUG(1, ("Failed to set 'normal account' flags for user %s.\n", pwd->pw_name));
264 return NT_STATUS_UNSUCCESSFUL;
267 if (!pdb_set_acct_ctrl(sam_account, ACB_WSTRUST, PDB_DEFAULT)) {
268 DEBUG(1, ("Failed to set 'trusted workstation account' flags for user %s.\n", pwd->pw_name));
269 return NT_STATUS_UNSUCCESSFUL;
276 /*************************************************************
277 Initialises a struct sam_passwd with sane values.
278 ************************************************************/
280 NTSTATUS pdb_init_sam_pw(SAM_ACCOUNT **new_sam_acct, const struct passwd *pwd)
286 return NT_STATUS_UNSUCCESSFUL;
289 if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam(new_sam_acct))) {
294 if (!NT_STATUS_IS_OK(nt_status = pdb_fill_sam_pw(*new_sam_acct, pwd))) {
295 pdb_free_sam(new_sam_acct);
305 * Free the contets of the SAM_ACCOUNT, but not the structure.
307 * Also wipes the LM and NT hashes and plaintext passwrod from
310 * @param user SAM_ACCOUNT to free members of.
313 static void pdb_free_sam_contents(SAM_ACCOUNT *user)
316 /* Kill off sensitive data. Free()ed by the
319 data_blob_clear_free(&(user->private.lm_pw));
320 data_blob_clear_free(&(user->private.nt_pw));
321 if (user->private.plaintext_pw!=NULL)
322 memset(user->private.plaintext_pw,'\0',strlen(user->private.plaintext_pw));
326 /************************************************************
327 Reset the SAM_ACCOUNT and free the NT/LM hashes.
328 ***********************************************************/
330 NTSTATUS pdb_reset_sam(SAM_ACCOUNT *user)
333 DEBUG(0,("pdb_reset_sam: SAM_ACCOUNT was NULL\n"));
335 smb_panic("NULL pointer passed to pdb_free_sam\n");
337 return NT_STATUS_UNSUCCESSFUL;
340 pdb_free_sam_contents(user);
342 pdb_fill_default_sam(user);
348 /************************************************************
349 Free the SAM_ACCOUNT and the member pointers.
350 ***********************************************************/
352 NTSTATUS pdb_free_sam(SAM_ACCOUNT **user)
355 DEBUG(0,("pdb_free_sam: SAM_ACCOUNT was NULL\n"));
357 smb_panic("NULL pointer passed to pdb_free_sam\n");
359 return NT_STATUS_UNSUCCESSFUL;
362 pdb_free_sam_contents(*user);
364 if ((*user)->free_fn) {
365 (*user)->free_fn(user);
372 /**********************************************************
373 Encode the account control bits into a string.
374 length = length of string to encode into (including terminating
375 null). length *MUST BE MORE THAN 2* !
376 **********************************************************/
378 char *pdb_encode_acct_ctrl(uint16 acct_ctrl, size_t length)
380 static fstring acct_str;
385 if (acct_ctrl & ACB_PWNOTREQ ) acct_str[i++] = 'N';
386 if (acct_ctrl & ACB_DISABLED ) acct_str[i++] = 'D';
387 if (acct_ctrl & ACB_HOMDIRREQ) acct_str[i++] = 'H';
388 if (acct_ctrl & ACB_TEMPDUP ) acct_str[i++] = 'T';
389 if (acct_ctrl & ACB_NORMAL ) acct_str[i++] = 'U';
390 if (acct_ctrl & ACB_MNS ) acct_str[i++] = 'M';
391 if (acct_ctrl & ACB_WSTRUST ) acct_str[i++] = 'W';
392 if (acct_ctrl & ACB_SVRTRUST ) acct_str[i++] = 'S';
393 if (acct_ctrl & ACB_AUTOLOCK ) acct_str[i++] = 'L';
394 if (acct_ctrl & ACB_PWNOEXP ) acct_str[i++] = 'X';
395 if (acct_ctrl & ACB_DOMTRUST ) acct_str[i++] = 'I';
397 for ( ; i < length - 2 ; i++ )
402 acct_str[i++] = '\0';
407 /**********************************************************
408 Decode the account control bits from a string.
409 **********************************************************/
411 uint16 pdb_decode_acct_ctrl(const char *p)
413 uint16 acct_ctrl = 0;
414 BOOL finished = False;
417 * Check if the account type bits have been encoded after the
418 * NT password (in the form [NDHTUWSLXI]).
424 for (p++; *p && !finished; p++) {
426 case 'N': { acct_ctrl |= ACB_PWNOTREQ ; break; /* 'N'o password. */ }
427 case 'D': { acct_ctrl |= ACB_DISABLED ; break; /* 'D'isabled. */ }
428 case 'H': { acct_ctrl |= ACB_HOMDIRREQ; break; /* 'H'omedir required. */ }
429 case 'T': { acct_ctrl |= ACB_TEMPDUP ; break; /* 'T'emp account. */ }
430 case 'U': { acct_ctrl |= ACB_NORMAL ; break; /* 'U'ser account (normal). */ }
431 case 'M': { acct_ctrl |= ACB_MNS ; break; /* 'M'NS logon user account. What is this ? */ }
432 case 'W': { acct_ctrl |= ACB_WSTRUST ; break; /* 'W'orkstation account. */ }
433 case 'S': { acct_ctrl |= ACB_SVRTRUST ; break; /* 'S'erver account. */ }
434 case 'L': { acct_ctrl |= ACB_AUTOLOCK ; break; /* 'L'ocked account. */ }
435 case 'X': { acct_ctrl |= ACB_PWNOEXP ; break; /* No 'X'piry on password */ }
436 case 'I': { acct_ctrl |= ACB_DOMTRUST ; break; /* 'I'nterdomain trust account. */ }
442 default: { finished = True; }
449 /*************************************************************
450 Routine to set 32 hex password characters from a 16 byte array.
451 **************************************************************/
453 void pdb_sethexpwd(char *p, const unsigned char *pwd, uint16 acct_ctrl)
457 for (i = 0; i < 16; i++)
458 slprintf(&p[i*2], 3, "%02X", pwd[i]);
460 if (acct_ctrl & ACB_PWNOTREQ)
461 safe_strcpy(p, "NO PASSWORDXXXXXXXXXXXXXXXXXXXXX", 33);
463 safe_strcpy(p, "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX", 33);
467 /*************************************************************
468 Routine to get the 32 hex characters and turn them
469 into a 16 byte array.
470 **************************************************************/
472 BOOL pdb_gethexpwd(const char *p, unsigned char *pwd)
475 unsigned char lonybble, hinybble;
476 char *hexchars = "0123456789ABCDEF";
482 for (i = 0; i < 32; i += 2) {
483 hinybble = toupper(p[i]);
484 lonybble = toupper(p[i + 1]);
486 p1 = strchr(hexchars, hinybble);
487 p2 = strchr(hexchars, lonybble);
492 hinybble = PTR_DIFF(p1, hexchars);
493 lonybble = PTR_DIFF(p2, hexchars);
495 pwd[i / 2] = (hinybble << 4) | lonybble;
500 /*******************************************************************
501 Converts NT user RID to a UNIX uid.
502 ********************************************************************/
504 static int algorithmic_rid_base(void)
506 static int rid_offset = 0;
511 rid_offset = lp_algorithmic_rid_base();
513 if (rid_offset < BASE_RID) {
514 /* Try to prevent admin foot-shooting, we can't put algorithmic
515 rids below 1000, that's the 'well known RIDs' on NT */
516 DEBUG(0, ("'algorithmic rid base' must be equal to or above %ld\n", BASE_RID));
517 rid_offset = BASE_RID;
519 if (rid_offset & 1) {
520 DEBUG(0, ("algorithmic rid base must be even\n"));
527 uid_t fallback_pdb_user_rid_to_uid(uint32 user_rid)
529 int rid_offset = algorithmic_rid_base();
530 return (uid_t)(((user_rid & (~USER_RID_TYPE))- rid_offset)/RID_MULTIPLIER);
534 /*******************************************************************
535 converts UNIX uid to an NT User RID.
536 ********************************************************************/
538 uint32 fallback_pdb_uid_to_user_rid(uid_t uid)
540 int rid_offset = algorithmic_rid_base();
541 return (((((uint32)uid)*RID_MULTIPLIER) + rid_offset) | USER_RID_TYPE);
544 /*******************************************************************
545 Converts NT group RID to a UNIX gid.
546 ********************************************************************/
548 gid_t pdb_group_rid_to_gid(uint32 group_rid)
550 int rid_offset = algorithmic_rid_base();
551 return (gid_t)(((group_rid & (~GROUP_RID_TYPE))- rid_offset)/RID_MULTIPLIER);
554 /*******************************************************************
555 converts NT Group RID to a UNIX uid.
557 warning: you must not call that function only
558 you must do a call to the group mapping first.
559 there is not anymore a direct link between the gid and the rid.
560 ********************************************************************/
562 uint32 pdb_gid_to_group_rid(gid_t gid)
564 int rid_offset = algorithmic_rid_base();
565 return (((((uint32)gid)*RID_MULTIPLIER) + rid_offset) | GROUP_RID_TYPE);
568 /*******************************************************************
569 Decides if a RID is a well known RID.
570 ********************************************************************/
572 static BOOL pdb_rid_is_well_known(uint32 rid)
574 /* Not using rid_offset here, becouse this is the actual
575 NT fixed value (1000) */
577 return (rid < BASE_RID);
580 /*******************************************************************
581 Decides if a RID is a user or group RID.
582 ********************************************************************/
584 BOOL pdb_rid_is_user(uint32 rid)
586 /* lkcl i understand that NT attaches an enumeration to a RID
587 * such that it can be identified as either a user, group etc
588 * type. there are 5 such categories, and they are documented.
590 /* However, they are not in the RID, just somthing you can query
591 seperatly. Sorry luke :-) */
593 if(pdb_rid_is_well_known(rid)) {
595 * The only well known user RIDs are DOMAIN_USER_RID_ADMIN
596 * and DOMAIN_USER_RID_GUEST.
598 if(rid == DOMAIN_USER_RID_ADMIN || rid == DOMAIN_USER_RID_GUEST)
600 } else if((rid & RID_TYPE_MASK) == USER_RID_TYPE) {
606 /*******************************************************************
607 Convert a rid into a name. Used in the lookup SID rpc.
608 ********************************************************************/
610 BOOL local_lookup_sid(DOM_SID *sid, char *name, enum SID_NAME_USE *psid_name_use)
613 SAM_ACCOUNT *sam_account = NULL;
616 if (!sid_peek_check_rid(get_global_sam_sid(), sid, &rid)){
617 DEBUG(0,("local_sid_to_gid: sid_peek_check_rid return False! SID: %s\n",
618 sid_string_static(&map.sid)));
621 *psid_name_use = SID_NAME_UNKNOWN;
623 DEBUG(5,("local_lookup_sid: looking up RID %u.\n", (unsigned int)rid));
625 if (rid == DOMAIN_USER_RID_ADMIN) {
626 const char **admin_list = lp_admin_users(-1);
627 *psid_name_use = SID_NAME_USER;
629 const char *p = *admin_list;
630 if(!next_token(&p, name, NULL, sizeof(fstring)))
631 fstrcpy(name, "Administrator");
633 fstrcpy(name, "Administrator");
639 * Don't try to convert the rid to a name if
640 * running in appliance mode
643 if (lp_hide_local_users())
646 if (!NT_STATUS_IS_OK(pdb_init_sam(&sam_account))) {
650 /* This now does the 'generic' mapping in pdb_unix */
651 /* 'guest' is also handled there */
652 if (pdb_getsampwsid(sam_account, sid)) {
653 fstrcpy(name, pdb_get_username(sam_account));
654 *psid_name_use = SID_NAME_USER;
656 pdb_free_sam(&sam_account);
661 pdb_free_sam(&sam_account);
663 if (pdb_getgrsid(&map, *sid, MAPPING_WITHOUT_PRIV)) {
665 DEBUG(5,("local_lookup_sid: mapped group %s to gid %u\n", map.nt_name, (unsigned int)map.gid));
667 DEBUG(5,("local_lookup_sid: mapped group %s to no unix gid. Returning name.\n", map.nt_name));
670 fstrcpy(name, map.nt_name);
671 *psid_name_use = map.sid_name_use;
675 if (pdb_rid_is_user(rid)) {
678 DEBUG(5, ("assuming RID %u is a user\n", (unsigned)rid));
680 uid = fallback_pdb_user_rid_to_uid(rid);
681 slprintf(name, sizeof(fstring)-1, "unix_user.%u", (unsigned int)uid);
683 return False; /* Indicates that this user was 'not mapped' */
688 DEBUG(5, ("assuming RID %u is a group\n", (unsigned)rid));
690 gid = pdb_group_rid_to_gid(rid);
693 *psid_name_use = SID_NAME_ALIAS;
695 DEBUG(5,("local_lookup_sid: looking up gid %u %s\n", (unsigned int)gid,
696 gr ? "succeeded" : "failed" ));
699 slprintf(name, sizeof(fstring)-1, "unix_group.%u", (unsigned int)gid);
700 return False; /* Indicates that this group was 'not mapped' */
703 fstrcpy( name, gr->gr_name);
705 DEBUG(5,("local_lookup_sid: found group %s for rid %u\n", name,
706 (unsigned int)rid ));
711 /*******************************************************************
712 Convert a name into a SID. Used in the lookup name rpc.
713 ********************************************************************/
715 BOOL local_lookup_name(const char *c_user, DOM_SID *psid, enum SID_NAME_USE *psid_name_use)
717 extern DOM_SID global_sid_World_Domain;
720 SAM_ACCOUNT *sam_account = NULL;
724 *psid_name_use = SID_NAME_UNKNOWN;
727 * user may be quoted a const string, and map_username and
728 * friends can modify it. Make a modifiable copy. JRA.
731 fstrcpy(user, c_user);
733 sid_copy(&local_sid, get_global_sam_sid());
736 * Special case for MACHINE\Everyone. Map to the world_sid.
739 if(strequal(user, "Everyone")) {
740 sid_copy( psid, &global_sid_World_Domain);
741 sid_append_rid(psid, 0);
742 *psid_name_use = SID_NAME_ALIAS;
747 * Don't lookup local unix users if running in appliance mode
749 if (lp_hide_local_users())
752 (void)map_username(user);
754 if (!NT_STATUS_IS_OK(pdb_init_sam(&sam_account))) {
758 if (pdb_getsampwnam(sam_account, user)) {
759 sid_copy(psid, pdb_get_user_sid(sam_account));
760 *psid_name_use = SID_NAME_USER;
762 pdb_free_sam(&sam_account);
766 pdb_free_sam(&sam_account);
769 * Maybe it was a group ?
772 /* check if it's a mapped group */
773 if (pdb_getgrnam(&map, user, MAPPING_WITHOUT_PRIV)) {
774 /* yes it's a mapped group */
775 sid_copy(&local_sid, &map.sid);
776 *psid_name_use = map.sid_name_use;
778 /* it's not a mapped group */
779 grp = getgrnam(user);
784 *check if it's mapped, if it is reply it doesn't exist
786 * that's to prevent this case:
788 * unix group ug is mapped to nt group ng
789 * someone does a lookup on ug
790 * we must not reply as it doesn't "exist" anymore
791 * for NT. For NT only ng exists.
795 if (pdb_getgrgid(&map, grp->gr_gid, MAPPING_WITHOUT_PRIV)){
799 sid_append_rid( &local_sid, pdb_gid_to_group_rid(grp->gr_gid));
800 *psid_name_use = SID_NAME_ALIAS;
803 sid_copy( psid, &local_sid);
808 /****************************************************************************
809 Convert a uid to SID - locally.
810 ****************************************************************************/
812 DOM_SID *local_uid_to_sid(DOM_SID *psid, uid_t uid)
815 SAM_ACCOUNT *sam_user = NULL;
816 fstring str; /* sid string buffer */
818 sid_copy(psid, get_global_sam_sid());
820 if((pass = getpwuid_alloc(uid))) {
822 if (NT_STATUS_IS_ERR(pdb_init_sam(&sam_user))) {
827 if (pdb_getsampwnam(sam_user, pass->pw_name)) {
828 sid_copy(psid, pdb_get_user_sid(sam_user));
829 } else if (strcmp(pass->pw_name, lp_guestaccount()) == 0) {
830 sid_append_rid(psid, DOMAIN_USER_RID_GUEST);
832 sid_append_rid(psid, fallback_pdb_uid_to_user_rid(uid));
835 DEBUG(10,("local_uid_to_sid: uid %u -> SID (%s) (%s).\n",
836 (unsigned)uid, sid_to_string( str, psid),
840 pdb_free_sam(&sam_user);
843 sid_append_rid(psid, fallback_pdb_uid_to_user_rid(uid));
845 DEBUG(10,("local_uid_to_sid: uid %u -> SID (%s) (unknown user).\n",
846 (unsigned)uid, sid_to_string( str, psid)));
852 /****************************************************************************
853 Convert a SID to uid - locally.
854 ****************************************************************************/
856 BOOL local_sid_to_uid(uid_t *puid, const DOM_SID *psid, enum SID_NAME_USE *name_type)
859 SAM_ACCOUNT *sam_user = NULL;
861 *name_type = SID_NAME_UNKNOWN;
863 if (NT_STATUS_IS_ERR(pdb_init_sam(&sam_user)))
866 if (pdb_getsampwsid(sam_user, psid)) {
868 if (!IS_SAM_SET(sam_user,PDB_UID)&&!IS_SAM_CHANGED(sam_user,PDB_UID)) {
869 pdb_free_sam(&sam_user);
873 *puid = pdb_get_uid(sam_user);
875 DEBUG(10,("local_sid_to_uid: SID %s -> uid (%u) (%s).\n", sid_to_string( str, psid),
876 (unsigned int)*puid, pdb_get_username(sam_user)));
877 pdb_free_sam(&sam_user);
884 pdb_free_sam(&sam_user);
886 if (pdb_getgrsid(&map, *psid, MAPPING_WITHOUT_PRIV)) {
887 DEBUG(3, ("local_sid_to_uid: SID '%s' is a group, not a user... \n", sid_to_string(str, psid)));
888 /* It's a group, not a user... */
892 sid_copy(&dom_sid, psid);
893 if (!sid_peek_check_rid(get_global_sam_sid(), psid, &rid)) {
894 DEBUG(3, ("sid_peek_rid failed - sid '%s' is not in our domain\n", sid_to_string(str, psid)));
898 if (!pdb_rid_is_user(rid)) {
899 DEBUG(3, ("local_sid_to_uid: sid '%s' cannot be mapped to a uid algorithmicly becouse it is a group\n", sid_to_string(str, psid)));
903 *puid = fallback_pdb_user_rid_to_uid(rid);
905 DEBUG(5,("local_sid_to_uid: SID %s algorithmicly mapped to %ld mapped becouse SID was not found in passdb.\n",
906 sid_to_string(str, psid), (signed long int)(*puid)));
909 *name_type = SID_NAME_USER;
914 /****************************************************************************
915 Convert a gid to SID - locally.
916 ****************************************************************************/
918 DOM_SID *local_gid_to_sid(DOM_SID *psid, gid_t gid)
922 sid_copy(psid, get_global_sam_sid());
924 if (pdb_getgrgid(&map, gid, MAPPING_WITHOUT_PRIV)) {
925 sid_copy(psid, &map.sid);
928 sid_append_rid(psid, pdb_gid_to_group_rid(gid));
934 /****************************************************************************
935 Convert a SID to gid - locally.
936 ****************************************************************************/
938 BOOL local_sid_to_gid(gid_t *pgid, const DOM_SID *psid, enum SID_NAME_USE *name_type)
943 *name_type = SID_NAME_UNKNOWN;
946 * We can only convert to a gid if this is our local
947 * Domain SID (ie. we are the controling authority).
949 * Or in the Builtin SID too. JFM, 11/30/2001
952 if (pdb_getgrsid(&map, *psid, MAPPING_WITHOUT_PRIV)) {
954 /* the SID is in the mapping table but not mapped */
959 *name_type = map.sid_name_use;
960 DEBUG(10,("local_sid_to_gid: mapped SID %s (%s) -> gid (%u).\n",
961 sid_to_string( str, psid),
962 map.nt_name, (unsigned int)*pgid));
966 SAM_ACCOUNT *sam_user = NULL;
967 if (NT_STATUS_IS_ERR(pdb_init_sam(&sam_user)))
970 if (pdb_getsampwsid(sam_user, psid)) {
972 pdb_free_sam(&sam_user);
975 pdb_free_sam(&sam_user);
977 if (!sid_peek_check_rid(get_global_sam_sid(), psid, &rid)) {
978 DEBUG(3, ("sid_peek_rid failed - sid '%s' is not in our domain\n", sid_to_string(str, psid)));
982 if (pdb_rid_is_user(rid))
985 *pgid = pdb_group_rid_to_gid(rid);
986 *name_type = SID_NAME_ALIAS;
987 DEBUG(10,("local_sid_to_gid: SID %s -> gid (%u).\n", sid_to_string( str, psid),
988 (unsigned int)*pgid));
995 * Quick hack to do an easy ucs2 -> mulitbyte conversion
996 * @return static buffer containing the converted string
999 const char *pdb_unistr2_convert(const UNISTR2 *from)
1001 static pstring convert_buffer;
1002 *convert_buffer = 0;
1007 unistr2_to_ascii(convert_buffer, from, sizeof(pstring));
1008 return convert_buffer;
1011 /*************************************************************
1012 Change a password entry in the local smbpasswd file.
1014 FIXME!! The function needs to be abstracted into the
1015 passdb interface or something. It is currently being called
1016 by _api_samr_create_user() in rpc_server/srv_samr.c,
1017 in SWAT and by smbpasswd/pdbedit.
1020 *************************************************************/
1022 BOOL local_password_change(const char *user_name, int local_flags,
1023 const char *new_passwd,
1024 char *err_str, size_t err_str_len,
1025 char *msg_str, size_t msg_str_len)
1027 struct passwd *pwd = NULL;
1028 SAM_ACCOUNT *sam_pass=NULL;
1034 /* Get the smb passwd entry for this user */
1035 pdb_init_sam(&sam_pass);
1036 if(!pdb_getsampwnam(sam_pass, user_name)) {
1037 pdb_free_sam(&sam_pass);
1039 if (local_flags & LOCAL_ADD_USER) {
1040 pwd = getpwnam_alloc(user_name);
1041 } else if (local_flags & LOCAL_DELETE_USER) {
1042 /* Might not exist in /etc/passwd */
1044 slprintf(err_str, err_str_len-1,"Failed to find entry for user %s.\n", user_name);
1049 /* Local user found, so init from this */
1050 if (!NT_STATUS_IS_OK(pdb_init_sam_pw(&sam_pass, pwd))){
1051 slprintf(err_str, err_str_len-1, "Failed initialise SAM_ACCOUNT for user %s.\n", user_name);
1058 if (!NT_STATUS_IS_OK(pdb_init_sam(&sam_pass))){
1059 slprintf(err_str, err_str_len-1, "Failed initialise SAM_ACCOUNT for user %s.\n", user_name);
1063 if (!pdb_set_username(sam_pass, user_name, PDB_CHANGED)) {
1064 slprintf(err_str, err_str_len - 1, "Failed to set username for user %s.\n", user_name);
1065 pdb_free_sam(&sam_pass);
1070 /* the entry already existed */
1071 local_flags &= ~LOCAL_ADD_USER;
1074 /* the 'other' acb bits not being changed here */
1075 other_acb = (pdb_get_acct_ctrl(sam_pass) & (!(ACB_WSTRUST|ACB_DOMTRUST|ACB_SVRTRUST|ACB_NORMAL)));
1076 if (local_flags & LOCAL_TRUST_ACCOUNT) {
1077 if (!pdb_set_acct_ctrl(sam_pass, ACB_WSTRUST | other_acb, PDB_CHANGED) ) {
1078 slprintf(err_str, err_str_len - 1, "Failed to set 'trusted workstation account' flags for user %s.\n", user_name);
1079 pdb_free_sam(&sam_pass);
1082 } else if (local_flags & LOCAL_INTERDOM_ACCOUNT) {
1083 if (!pdb_set_acct_ctrl(sam_pass, ACB_DOMTRUST | other_acb, PDB_CHANGED)) {
1084 slprintf(err_str, err_str_len - 1, "Failed to set 'domain trust account' flags for user %s.\n", user_name);
1085 pdb_free_sam(&sam_pass);
1089 if (!pdb_set_acct_ctrl(sam_pass, ACB_NORMAL | other_acb, PDB_CHANGED)) {
1090 slprintf(err_str, err_str_len - 1, "Failed to set 'normal account' flags for user %s.\n", user_name);
1091 pdb_free_sam(&sam_pass);
1097 * We are root - just write the new password
1098 * and the valid last change time.
1101 if (local_flags & LOCAL_DISABLE_USER) {
1102 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)|ACB_DISABLED, PDB_CHANGED)) {
1103 slprintf(err_str, err_str_len-1, "Failed to set 'disabled' flag for user %s.\n", user_name);
1104 pdb_free_sam(&sam_pass);
1107 } else if (local_flags & LOCAL_ENABLE_USER) {
1108 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_DISABLED), PDB_CHANGED)) {
1109 slprintf(err_str, err_str_len-1, "Failed to unset 'disabled' flag for user %s.\n", user_name);
1110 pdb_free_sam(&sam_pass);
1115 if (local_flags & LOCAL_SET_NO_PASSWORD) {
1116 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)|ACB_PWNOTREQ, PDB_CHANGED)) {
1117 slprintf(err_str, err_str_len-1, "Failed to set 'no password required' flag for user %s.\n", user_name);
1118 pdb_free_sam(&sam_pass);
1121 } else if (local_flags & LOCAL_SET_PASSWORD) {
1123 * If we're dealing with setting a completely empty user account
1124 * ie. One with a password of 'XXXX', but not set disabled (like
1125 * an account created from scratch) then if the old password was
1126 * 'XX's then getsmbpwent will have set the ACB_DISABLED flag.
1127 * We remove that as we're giving this user their first password
1128 * and the decision hasn't really been made to disable them (ie.
1129 * don't create them disabled). JRA.
1131 if ((pdb_get_lanman_passwd(sam_pass)==NULL) && (pdb_get_acct_ctrl(sam_pass)&ACB_DISABLED)) {
1132 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_DISABLED), PDB_CHANGED)) {
1133 slprintf(err_str, err_str_len-1, "Failed to unset 'disabled' flag for user %s.\n", user_name);
1134 pdb_free_sam(&sam_pass);
1138 if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_PWNOTREQ), PDB_CHANGED)) {
1139 slprintf(err_str, err_str_len-1, "Failed to unset 'no password required' flag for user %s.\n", user_name);
1140 pdb_free_sam(&sam_pass);
1144 if (!pdb_set_plaintext_passwd (sam_pass, new_passwd)) {
1145 slprintf(err_str, err_str_len-1, "Failed to set password for user %s.\n", user_name);
1146 pdb_free_sam(&sam_pass);
1151 if (local_flags & LOCAL_ADD_USER) {
1152 if (pdb_add_sam_account(sam_pass)) {
1153 slprintf(msg_str, msg_str_len-1, "Added user %s.\n", user_name);
1154 pdb_free_sam(&sam_pass);
1157 slprintf(err_str, err_str_len-1, "Failed to add entry for user %s.\n", user_name);
1158 pdb_free_sam(&sam_pass);
1161 } else if (local_flags & LOCAL_DELETE_USER) {
1162 if (!pdb_delete_sam_account(sam_pass)) {
1163 slprintf(err_str,err_str_len-1, "Failed to delete entry for user %s.\n", user_name);
1164 pdb_free_sam(&sam_pass);
1167 slprintf(msg_str, msg_str_len-1, "Deleted user %s.\n", user_name);
1169 if(!pdb_update_sam_account(sam_pass)) {
1170 slprintf(err_str, err_str_len-1, "Failed to modify entry for user %s.\n", user_name);
1171 pdb_free_sam(&sam_pass);
1174 if(local_flags & LOCAL_DISABLE_USER)
1175 slprintf(msg_str, msg_str_len-1, "Disabled user %s.\n", user_name);
1176 else if (local_flags & LOCAL_ENABLE_USER)
1177 slprintf(msg_str, msg_str_len-1, "Enabled user %s.\n", user_name);
1178 else if (local_flags & LOCAL_SET_NO_PASSWORD)
1179 slprintf(msg_str, msg_str_len-1, "User %s password set to none.\n", user_name);
1182 pdb_free_sam(&sam_pass);