source/passdb/util_unixsids.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Translate unix-defined names to SIDs and vice versa
   4    Copyright (C) Volker Lendecke 2005
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software
  18    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19 */
  20
  21 #include "includes.h"
  22
  23 BOOL sid_check_is_unix_users(const DOM_SID *sid)
  24 {
  25         return sid_equal(sid, &global_sid_Unix_Users);
  26 }
  27
  28 BOOL sid_check_is_in_unix_users(const DOM_SID *sid)
  29 {
  30         DOM_SID dom_sid;
  31         uint32 rid;
  32
  33         sid_copy(&dom_sid, sid);
  34         sid_split_rid(&dom_sid, &rid);
  35
  36         return sid_check_is_unix_users(&dom_sid);
  37 }
  38
  39 BOOL uid_to_unix_users_sid(uid_t uid, DOM_SID *sid)
  40 {
  41         sid_copy(sid, &global_sid_Unix_Users);
  42         return sid_append_rid(sid, uid);
  43 }
  44
  45 BOOL gid_to_unix_groups_sid(gid_t gid, DOM_SID *sid)
  46 {
  47         sid_copy(sid, &global_sid_Unix_Groups);
  48         return sid_append_rid(sid, gid);
  49 }
  50
  51 const char *unix_users_domain_name(void)
  52 {
  53         return "Unix User";
  54 }
  55
  56 BOOL lookup_unix_user_name(const char *name, DOM_SID *sid)
  57 {
  58         struct passwd *pwd;
  59
  60         pwd = getpwnam_alloc(NULL, name);
  61         if (pwd == NULL) {
  62                 return False;
  63         }
  64
  65         sid_copy(sid, &global_sid_Unix_Users);
  66         sid_append_rid(sid, pwd->pw_uid); /* For 64-bit uid's we have enough
  67                                           * space ... */
  68         TALLOC_FREE(pwd);
  69         return True;
  70 }
  71
  72 BOOL sid_check_is_unix_groups(const DOM_SID *sid)
  73 {
  74         return sid_equal(sid, &global_sid_Unix_Groups);
  75 }
  76
  77 BOOL sid_check_is_in_unix_groups(const DOM_SID *sid)
  78 {
  79         DOM_SID dom_sid;
  80         uint32 rid;
  81
  82         sid_copy(&dom_sid, sid);
  83         sid_split_rid(&dom_sid, &rid);
  84
  85         return sid_check_is_unix_groups(&dom_sid);
  86 }
  87
  88 const char *unix_groups_domain_name(void)
  89 {
  90         return "Unix Group";
  91 }
  92
  93 BOOL lookup_unix_group_name(const char *name, DOM_SID *sid)
  94 {
  95         struct group *grp;
  96
  97         grp = getgrnam(name);
  98         if (grp == NULL) {
  99                 return False;
 100         }
 101
 102         sid_copy(sid, &global_sid_Unix_Groups);
 103         sid_append_rid(sid, grp->gr_gid); /* For 64-bit uid's we have enough
 104                                            * space ... */
 105         return True;
 106 }