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 ClientNMB;
  26 extern int ClientDGRAM;
  27
  28 extern int DEBUGLEVEL;
  29
  30 extern pstring myname;
  31
  32 extern int name_type;
  33 extern int max_protocol;
  34 extern struct in_addr dest_ip;
  35 extern int pid;
  36 extern int gid;
  37 extern int uid;
  38 extern int mid;
  39 extern BOOL got_pass;
  40 extern BOOL have_ip;
  41 extern pstring workgroup;
  42 extern pstring service;
  43 extern pstring desthost;
  44 extern BOOL connect_as_ipc;
  45
  46 /****************************************************************************
  47 fudge for getpass function
  48 ****************************************************************************/
  49 char *getsmbpass(char *pass)
  50 {
  51         return "dummy"; /* return anything: it should be ignored anyway */
  52 }
  53
  54 /****************************************************************************
  55 adds information retrieved from a NetServerEnum call
  56 ****************************************************************************/
  57 static BOOL add_info(struct subnet_record *d, struct work_record *work, int servertype)
  58 {
  59   char *rparam = NULL;
  60   char *rdata = NULL;
  61   int rdrcnt,rprcnt;
  62   char *p;
  63   pstring param;
  64   int uLevel = 1;
  65   int count = -1;
  66
  67   /* now send a SMBtrans command with api ServerEnum? */
  68   p = param;
  69   SSVAL(p,0,0x68); /* api number */
  70   p += 2;
  71   strcpy(p,"WrLehDz");
  72   p = skip_string(p,1);
  73
  74   strcpy(p,"B16BBDz");
  75
  76   p = skip_string(p,1);
  77   SSVAL(p,0,uLevel);
  78   SSVAL(p,2,0x2000); /* buf length */
  79   p += 4;
  80   SIVAL(p,0,servertype);
  81   p += 4;
  82
  83   strcpy(p, work->work_group);
  84   p = skip_string(p,1);
  85
  86   if (cli_call_api(PTR_DIFF(p,param),0, 8,10000,
  87                    &rprcnt,&rdrcnt, param,NULL,
  88                    &rparam,&rdata))
  89     {
  90       int res = SVAL(rparam,0);
  91       int converter=SVAL(rparam,2);
  92       int i;
  93
  94       if (res == 0)
  95         {
  96           count=SVAL(rparam,4);
  97           p = rdata;
  98
  99           for (i = 0;i < count;i++, p += 26)
 100             {
 101               char *sname = p;
 102               uint32 stype = IVAL(p,18) & ~SV_TYPE_LOCAL_LIST_ONLY;
 103               int comment_offset = IVAL(p,22) & 0xFFFF;
 104               char *cmnt = comment_offset?(rdata+comment_offset-converter):"";
 105
 106               struct work_record *w = work;
 107
 108               DEBUG(4, ("\t%-16.16s     %08x    %s\n", sname, stype, cmnt));
 109
 110               if (stype & SV_TYPE_DOMAIN_ENUM)
 111                 {
 112                   /* creates workgroup on remote subnet */
 113                   if ((w = find_workgroupstruct(d,sname,True)))
 114                     {
 115                       announce_request(w, d->bcast_ip);
 116                     }
 117                 }
 118
 119           if (w)
 120                 add_server_entry(d,w,sname,stype,lp_max_ttl(),cmnt,False);
 121             }
 122         }
 123     }
 124
 125   if (rparam) free(rparam);
 126   if (rdata) free(rdata);
 127
 128   return(True);
 129 }
 130
 131
 132 /*******************************************************************
 133   synchronise browse lists with another browse server.
 134
 135   log in on the remote server's SMB port to their IPC$ service,
 136   do a NetServerEnum and update our server and workgroup databases.
 137   ******************************************************************/
 138 void sync_browse_lists(struct subnet_record *d, struct work_record *work,
 139                 char *name, int nm_type, struct in_addr ip, BOOL local)
 140 {
 141   uint32 local_type = local ? SV_TYPE_LOCAL_LIST_ONLY : 0;
 142
 143   if (!d || !work ) return;
 144
 145   if(d != wins_subnet) {
 146       DEBUG(0,
 147         ("sync_browse_lists: ERROR sync requested on non-WINS subnet.\n"));
 148       return;
 149   }
 150
 151   pid = getpid();
 152   uid = getuid();
 153   gid = getgid();
 154   mid = pid + 100;
 155   name_type = nm_type;
 156
 157   got_pass = True;
 158
 159   DEBUG(0,("sync_browse_lists: Sync browse lists with %s for %s %s\n",
 160             name, work->work_group, inet_ntoa(ip)));
 161
 162   strcpy(workgroup,work->work_group);
 163   strcpy(desthost,name);
 164   dest_ip = ip;
 165
 166   if (zero_ip(dest_ip)) return;
 167   have_ip = True;
 168
 169   connect_as_ipc = True;
 170
 171   /* connect as server and get domains, then servers */
 172
 173   sprintf(service,"\\\\%s\\IPC$", name);
 174   strupper(service);
 175
 176   if (cli_open_sockets(SMB_PORT))
 177     {
 178       if (cli_send_login(NULL,NULL,True,True))
 179         {
 180           add_info(d, work, local_type|SV_TYPE_DOMAIN_ENUM);
 181           add_info(d, work, local_type|(SV_TYPE_ALL&
 182                       ~(SV_TYPE_DOMAIN_ENUM|SV_TYPE_LOCAL_LIST_ONLY)));
 183         }
 184
 185       close_sockets();
 186     }
 187 }