source/smbd/change_trust_pw.c

   1 /*
   2  *  Unix SMB/CIFS implementation.
   3  *  Periodic Trust account password changing.
   4  *  Copyright (C) Andrew Tridgell              1992-1997,
   5  *  Copyright (C) Luke Kenneth Casson Leighton 1996-1997,
   6  *  Copyright (C) Paul Ashton                       1997.
   7  *  Copyright (C) Jeremy Allison                    1998.
   8  *  Copyright (C) Andrew Bartlett                   2001.
   9  *
  10  *  This program is free software; you can redistribute it and/or modify
  11  *  it under the terms of the GNU General Public License as published by
  12  *  the Free Software Foundation; either version 3 of the License, or
  13  *  (at your option) any later version.
  14  *
  15  *  This program is distributed in the hope that it will be useful,
  16  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  *  GNU General Public License for more details.
  19  *
  20  *  You should have received a copy of the GNU General Public License
  21  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  22  */
  23
  24 #include "includes.h"
  25
  26 /************************************************************************
  27  Change the trust account password for a domain.
  28 ************************************************************************/
  29
  30 NTSTATUS change_trust_account_password( const char *domain, const char *remote_machine)
  31 {
  32         NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
  33         struct sockaddr_storage pdc_ss;
  34         fstring dc_name;
  35         struct cli_state *cli = NULL;
  36         struct rpc_pipe_client *netlogon_pipe = NULL;
  37
  38         DEBUG(5,("change_trust_account_password: Attempting to change trust account password in domain %s....\n",
  39                 domain));
  40
  41         if (remote_machine == NULL || !strcmp(remote_machine, "*")) {
  42                 /* Use the PDC *only* for this */
  43
  44                 if ( !get_pdc_ip(domain, &pdc_ss) ) {
  45                         DEBUG(0,("Can't get IP for PDC for domain %s\n", domain));
  46                         goto failed;
  47                 }
  48
  49                 if ( !name_status_find( domain, 0x1b, 0x20, &pdc_ss, dc_name) )
  50                         goto failed;
  51         } else {
  52                 /* supoport old deprecated "smbpasswd -j DOMAIN -r MACHINE" behavior */
  53                 fstrcpy( dc_name, remote_machine );
  54         }
  55
  56         /* if this next call fails, then give up.  We can't do
  57            password changes on BDC's  --jerry */
  58
  59         if (!NT_STATUS_IS_OK(cli_full_connection(&cli, global_myname(), dc_name,
  60                                            NULL, 0,
  61                                            "IPC$", "IPC",
  62                                            "", "",
  63                                            "", 0, Undefined, NULL))) {
  64                 DEBUG(0,("modify_trust_password: Connection to %s failed!\n", dc_name));
  65                 nt_status = NT_STATUS_UNSUCCESSFUL;
  66                 goto failed;
  67         }
  68
  69         /*
  70          * Ok - we have an anonymous connection to the IPC$ share.
  71          * Now start the NT Domain stuff :-).
  72          */
  73
  74         /* Shouldn't we open this with schannel ? JRA. */
  75
  76         netlogon_pipe = cli_rpc_pipe_open_noauth(cli, PI_NETLOGON, &nt_status);
  77         if (!netlogon_pipe) {
  78                 DEBUG(0,("modify_trust_password: unable to open the domain client session to machine %s. Error was : %s.\n",
  79                         dc_name, nt_errstr(nt_status)));
  80                 cli_shutdown(cli);
  81                 cli = NULL;
  82                 goto failed;
  83         }
  84
  85         nt_status = trust_pw_find_change_and_store_it(netlogon_pipe, netlogon_pipe->mem_ctx, domain);
  86
  87         cli_shutdown(cli);
  88         cli = NULL;
  89
  90 failed:
  91         if (!NT_STATUS_IS_OK(nt_status)) {
  92                 DEBUG(0,("%s : change_trust_account_password: Failed to change password for domain %s.\n",
  93                         current_timestring(debug_ctx(), False), domain));
  94         }
  95         else
  96                 DEBUG(5,("change_trust_account_password: sucess!\n"));
  97
  98         return nt_status;
  99 }