source3/smbd/password.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Password and authentication handling
   4    Copyright (C) Andrew Tridgell 1992-1998
   5    Copyright (C) Jeremy Allison 2007.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #include "includes.h"
  22 #include "system/passwd.h"
  23 #include "smbd/smbd.h"
  24 #include "smbd/globals.h"
  25 #include "../librpc/gen_ndr/netlogon.h"
  26 #include "auth.h"
  27 #include "../libcli/security/security.h"
  28
  29 /****************************************************************************
  30  Invalidate a uid.
  31 ****************************************************************************/
  32
  33 void invalidate_vuid(struct smbd_server_connection *sconn, uint64_t vuid)
  34 {
  35         struct smbXsrv_session *session = NULL;
  36         NTSTATUS status;
  37
  38         status = get_valid_smbXsrv_session(sconn->client, vuid, &session);
  39         if (!NT_STATUS_IS_OK(status)) {
  40                 return;
  41         }
  42
  43         session_yield(session);
  44
  45         SMB_ASSERT(sconn->num_users > 0);
  46         sconn->num_users--;
  47
  48         /* clear the vuid from the 'cache' on each connection, and
  49            from the vuid 'owner' of connections */
  50         conn_clear_vuid_caches(sconn, vuid);
  51 }
  52
  53 int register_homes_share(const char *username)
  54 {
  55         const struct loadparm_substitution *lp_sub =
  56                 loadparm_s3_global_substitution();
  57         int result;
  58         struct passwd *pwd;
  59
  60         result = lp_servicenumber(username);
  61         if (result != -1) {
  62                 DEBUG(3, ("Using static (or previously created) service for "
  63                           "user '%s'; path = '%s'\n", username,
  64                           lp_path(talloc_tos(), lp_sub, result)));
  65                 return result;
  66         }
  67
  68         pwd = Get_Pwnam_alloc(talloc_tos(), username);
  69
  70         if ((pwd == NULL) || (pwd->pw_dir[0] == '\0')) {
  71                 DEBUG(3, ("No home directory defined for user '%s'\n",
  72                           username));
  73                 TALLOC_FREE(pwd);
  74                 return -1;
  75         }
  76
  77         if (strequal(pwd->pw_dir, "/")) {
  78                 DBG_NOTICE("Invalid home directory defined for user '%s'\n",
  79                            username);
  80                 TALLOC_FREE(pwd);
  81                 return -1;
  82         }
  83
  84         DEBUG(3, ("Adding homes service for user '%s' using home directory: "
  85                   "'%s'\n", username, pwd->pw_dir));
  86
  87         result = add_home_service(username, username, pwd->pw_dir);
  88
  89         TALLOC_FREE(pwd);
  90         return result;
  91 }