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 "source3/smbd/smbXsrv_session.h"
  26 #include "../librpc/gen_ndr/netlogon.h"
  27 #include "auth.h"
  28 #include "../libcli/security/security.h"
  29
  30 /****************************************************************************
  31  Invalidate a uid.
  32 ****************************************************************************/
  33
  34 void invalidate_vuid(struct smbd_server_connection *sconn, uint64_t vuid)
  35 {
  36         struct smbXsrv_session *session = NULL;
  37         NTSTATUS status;
  38
  39         status = get_valid_smbXsrv_session(sconn->client, vuid, &session);
  40         if (!NT_STATUS_IS_OK(status)) {
  41                 return;
  42         }
  43
  44         session_yield(session);
  45
  46         SMB_ASSERT(sconn->num_users > 0);
  47         sconn->num_users--;
  48
  49         /* clear the vuid from the 'cache' on each connection, and
  50            from the vuid 'owner' of connections */
  51         conn_clear_vuid_caches(sconn, vuid);
  52 }
  53
  54 int register_homes_share(const char *username)
  55 {
  56         const struct loadparm_substitution *lp_sub =
  57                 loadparm_s3_global_substitution();
  58         int result;
  59         struct passwd *pwd;
  60
  61         result = lp_servicenumber(username);
  62         if (result != -1) {
  63                 DEBUG(3, ("Using static (or previously created) service for "
  64                           "user '%s'; path = '%s'\n", username,
  65                           lp_path(talloc_tos(), lp_sub, result)));
  66                 return result;
  67         }
  68
  69         pwd = Get_Pwnam_alloc(talloc_tos(), username);
  70
  71         if ((pwd == NULL) || (pwd->pw_dir[0] == '\0')) {
  72                 DEBUG(3, ("No home directory defined for user '%s'\n",
  73                           username));
  74                 TALLOC_FREE(pwd);
  75                 return -1;
  76         }
  77
  78         if (strequal(pwd->pw_dir, "/")) {
  79                 DBG_NOTICE("Invalid home directory defined for user '%s'\n",
  80                            username);
  81                 TALLOC_FREE(pwd);
  82                 return -1;
  83         }
  84
  85         DEBUG(3, ("Adding homes service for user '%s' using home directory: "
  86                   "'%s'\n", username, pwd->pw_dir));
  87
  88         result = add_home_service(username, username, pwd->pw_dir);
  89
  90         TALLOC_FREE(pwd);
  91         return result;
  92 }