source/nmbsync.c

   1 /*
   2    Unix SMB/Netbios implementation.
   3    Version 1.9.
   4    NBT netbios routines to synchronise browse lists
   5    Copyright (C) Andrew Tridgell 1994-1997
   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
  23 #include "includes.h"
  24
  25 extern int DEBUGLEVEL;
  26
  27 static struct work_record *call_w;
  28 static struct subnet_record *call_d;
  29
  30 /*******************************************************************
  31   This is the NetServerEnum callback
  32   ******************************************************************/
  33 static void callback(char *sname, uint32 stype, char *comment)
  34 {
  35         struct work_record *w = call_w;
  36
  37         stype &= ~SV_TYPE_LOCAL_LIST_ONLY;
  38
  39         if (stype & SV_TYPE_DOMAIN_ENUM) {
  40                 /* creates workgroup on remote subnet */
  41                 if ((w = find_workgroupstruct(call_d,sname,True))) {
  42                         announce_request(w, call_d->bcast_ip);
  43                 }
  44         }
  45
  46         if (w) {
  47                 add_server_entry(call_d,w,sname,stype,
  48                                  lp_max_ttl(),comment,False);
  49         }
  50 }
  51
  52
  53 /*******************************************************************
  54   synchronise browse lists with another browse server.
  55
  56   log in on the remote server's SMB port to their IPC$ service,
  57   do a NetServerEnum and update our server and workgroup databases.
  58   ******************************************************************/
  59 void sync_browse_lists(struct subnet_record *d, struct work_record *work,
  60                        char *name, int nm_type, struct in_addr ip, BOOL local)
  61 {
  62         extern fstring local_machine;
  63         static struct cli_state cli;
  64         uint32 local_type = local ? SV_TYPE_LOCAL_LIST_ONLY : 0;
  65
  66         if (!d || !work ) return;
  67
  68         if(d != wins_client_subnet) {
  69                 DEBUG(0,("sync_browse_lists: ERROR sync requested on non-WINS subnet.\n"));
  70                 return;
  71         }
  72
  73         DEBUG(2,("sync_browse_lists: Sync browse lists with %s for %s %s\n",
  74                  name, work->work_group, inet_ntoa(ip)));
  75
  76         if (!cli_initialise(&cli) || !cli_connect(&cli, name, &ip)) {
  77                 DEBUG(1,("Failed to start browse sync with %s\n", name));
  78         }
  79
  80         if (!cli_session_request(&cli, name, nm_type, local_machine)) {
  81                 DEBUG(1,("%s rejected the browse sync session\n",name));
  82                 cli_shutdown(&cli);
  83                 return;
  84         }
  85
  86         if (!cli_negprot(&cli)) {
  87                 DEBUG(1,("%s rejected the negprot\n",name));
  88                 cli_shutdown(&cli);
  89                 return;
  90         }
  91
  92         if (!cli_session_setup(&cli, "", "", 1, "", 0, work->work_group)) {
  93                 DEBUG(1,("%s rejected the browse sync sessionsetup\n",
  94                          name));
  95                 cli_shutdown(&cli);
  96                 return;
  97         }
  98
  99         if (!cli_send_tconX(&cli, "IPC$", "IPC", "", 1)) {
 100                 DEBUG(1,("%s refused browse sync IPC$ connect\n", name));
 101                 cli_shutdown(&cli);
 102                 return;
 103         }
 104
 105         call_w = work;
 106         call_d = d;
 107
 108         cli_NetServerEnum(&cli, work->work_group,
 109                           local_type|SV_TYPE_DOMAIN_ENUM,
 110                           callback);
 111
 112         cli_NetServerEnum(&cli, work->work_group,
 113                           local?SV_TYPE_LOCAL_LIST_ONLY:SV_TYPE_ALL,
 114                           callback);
 115
 116         cli_shutdown(&cli);
 117 }