source/libsmb/cli_pipe_util.c

   1 /*
   2    Unix SMB/Netbios implementation.
   3    Version 2.2
   4    RPC pipe client utility functions
   5    Copyright (C) Tim Potter                        2001,
   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 2 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, write to the Free Software
  19    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20 */
  21
  22 #include "includes.h"
  23
  24 /* Opens a SMB connection to a named pipe */
  25
  26 struct cli_state *cli_pipe_initialise(struct cli_state *cli, char *system_name,
  27                                       char *pipe_name,
  28                                       struct ntuser_creds *creds)
  29 {
  30         struct in_addr dest_ip;
  31         struct nmb_name calling, called;
  32         fstring dest_host;
  33         extern pstring global_myname;
  34         struct ntuser_creds anon;
  35
  36         /* Initialise cli_state information */
  37
  38         if (!cli_initialise(cli)) {
  39                 return NULL;
  40         }
  41
  42         if (!creds) {
  43                 ZERO_STRUCT(anon);
  44                 anon.pwd.null_pwd = 1;
  45                 creds = &anon;
  46         }
  47
  48         cli_init_creds(cli, creds);
  49
  50         /* Establish a SMB connection */
  51
  52         if (!resolve_srv_name(system_name, dest_host, &dest_ip)) {
  53                 return NULL;
  54         }
  55
  56         make_nmb_name(&called, dns_to_netbios_name(dest_host), 0x20);
  57         make_nmb_name(&calling, dns_to_netbios_name(global_myname), 0);
  58
  59         if (!cli_establish_connection(cli, dest_host, &dest_ip, &calling,
  60                                       &called, "IPC$", "IPC", False, True)) {
  61                 return NULL;
  62         }
  63
  64         /* Open a NT session thingy */
  65
  66         if (!cli_nt_session_open(cli, pipe_name)) {
  67                 cli_shutdown(cli);
  68                 return NULL;
  69         }
  70
  71         return cli;
  72 }
  73
  74 /* Shut down a SMB connection to the SAMR pipe */
  75
  76 void cli_pipe_shutdown(struct cli_state *cli)
  77 {
  78         if (cli->fd != -1) cli_ulogoff(cli);
  79         cli_shutdown(cli);
  80 }