Line data    Source code

       1             : /*
       2             :    SSSD
       3             : 
       4             :    Data Provider Helpers
       5             : 
       6             :    Copyright (C) Stephen Gallagher <sgallagh@redhat.com>  2009
       7             : 
       8             :    This program is free software; you can redistribute it and/or modify
       9             :    it under the terms of the GNU General Public License as published by
      10             :    the Free Software Foundation; either version 3 of the License, or
      11             :    (at your option) any later version.
      12             : 
      13             :    This program is distributed in the hope that it will be useful,
      14             :    but WITHOUT ANY WARRANTY; without even the implied warranty of
      15             :    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      16             :    GNU General Public License for more details.
      17             : 
      18             :    You should have received a copy of the GNU General Public License
      19             :    along with this program.  If not, see <http://www.gnu.org/licenses/>.
      20             : */
      21             : 
      22             : #include <talloc.h>
      23             : 
      24             : #include "util/util.h"
      25             : #include "sbus_client.h"
      26             : 
      27           0 : int sbus_client_init(TALLOC_CTX *mem_ctx,
      28             :                      struct tevent_context *ev,
      29             :                      const char *server_address,
      30             :                      struct sbus_connection **_conn)
      31             : {
      32           0 :     struct sbus_connection *conn = NULL;
      33             :     int ret;
      34             :     char *filename;
      35             :     uid_t check_uid;
      36             :     gid_t check_gid;
      37             : 
      38             :     /* Validate input */
      39           0 :     if (server_address == NULL) {
      40           0 :         return EINVAL;
      41             :     }
      42             : 
      43           0 :     filename = strchr(server_address, '/');
      44           0 :     if (filename == NULL) {
      45           0 :         DEBUG(SSSDBG_CRIT_FAILURE,
      46             :               "Unexpected dbus address [%s].\n", server_address);
      47           0 :         return EIO;
      48             :     }
      49             : 
      50           0 :     check_uid = geteuid();
      51           0 :     check_gid = getegid();
      52             : 
      53             :     /* Ignore ownership checks when the server runs as root. This is the
      54             :      * case when privileged monitor is setting up sockets for unprivileged
      55             :      * responders */
      56           0 :     if (check_uid == 0) check_uid = -1;
      57           0 :     if (check_gid == 0) check_gid = -1;
      58             : 
      59           0 :     ret = check_file(filename, check_uid, check_gid,
      60             :                      S_IFSOCK|S_IRUSR|S_IWUSR, 0, NULL, true);
      61           0 :     if (ret != EOK) {
      62           0 :         DEBUG(SSSDBG_CRIT_FAILURE, "check_file failed for [%s].\n", filename);
      63           0 :         return EIO;
      64             :     }
      65             : 
      66           0 :     ret = sbus_new_connection(mem_ctx, ev, server_address, &conn);
      67           0 :     if (ret != EOK) {
      68           0 :         goto fail;
      69             :     }
      70             : 
      71           0 :     *_conn = conn;
      72           0 :     return EOK;
      73             : 
      74             : fail:
      75           0 :     talloc_free(conn);
      76           0 :     return ret;
      77             : }