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 /* We *must have REPLACE_GETPASS defined here before the includes. */
  24 #define REPLACE_GETPASS
  25 #include "includes.h"
  26
  27 extern int ClientNMB;
  28 extern int ClientDGRAM;
  29
  30 extern int DEBUGLEVEL;
  31
  32 extern pstring myname;
  33
  34 extern int name_type;
  35 extern int max_protocol;
  36 extern struct in_addr dest_ip;
  37 extern int pid;
  38 extern int gid;
  39 extern int uid;
  40 extern int mid;
  41 extern BOOL got_pass;
  42 extern BOOL have_ip;
  43 extern pstring workgroup;
  44 extern pstring service;
  45 extern pstring desthost;
  46 extern BOOL connect_as_ipc;
  47
  48 /****************************************************************************
  49 fudge for getpass function
  50 ****************************************************************************/
  51 char *getsmbpass(char *pass)
  52 {
  53         return "dummy"; /* return anything: it should be ignored anyway */
  54 }
  55
  56 /****************************************************************************
  57 adds information retrieved from a NetServerEnum call
  58 ****************************************************************************/
  59 static BOOL add_info(struct subnet_record *d, struct work_record *work, int servertype)
  60 {
  61   char *rparam = NULL;
  62   char *rdata = NULL;
  63   int rdrcnt,rprcnt;
  64   char *p;
  65   pstring param;
  66   int uLevel = 1;
  67   int count = -1;
  68
  69   /* now send a SMBtrans command with api ServerEnum? */
  70   p = param;
  71   SSVAL(p,0,0x68); /* api number */
  72   p += 2;
  73   strcpy(p,"WrLehDz");
  74   p = skip_string(p,1);
  75
  76   strcpy(p,"B16BBDz");
  77
  78   p = skip_string(p,1);
  79   SSVAL(p,0,uLevel);
  80   SSVAL(p,2,BUFFER_SIZE - SAFETY_MARGIN); /* buf length */
  81   p += 4;
  82   SIVAL(p,0,servertype);
  83   p += 4;
  84
  85   pstrcpy(p, work->work_group);
  86   p = skip_string(p,1);
  87
  88   if (cli_call_api(PTR_DIFF(p,param),0, 8,BUFFER_SIZE - SAFETY_MARGIN,
  89                    &rprcnt,&rdrcnt, param,NULL,
  90                    &rparam,&rdata))
  91     {
  92       int res = SVAL(rparam,0);
  93       int converter=SVAL(rparam,2);
  94       int i;
  95
  96       if (res == 0)
  97         {
  98           count=SVAL(rparam,4);
  99           p = rdata;
 100
 101           for (i = 0;i < count;i++, p += 26)
 102             {
 103               char *sname = p;
 104               uint32 stype = IVAL(p,18) & ~SV_TYPE_LOCAL_LIST_ONLY;
 105               int comment_offset = IVAL(p,22) & 0xFFFF;
 106               char *cmnt = comment_offset?(rdata+comment_offset-converter):"";
 107
 108               struct work_record *w = work;
 109
 110               DEBUG(4, ("\t%-16.16s     %08x    %s\n", sname, stype, cmnt));
 111
 112               if (stype & SV_TYPE_DOMAIN_ENUM)
 113                 {
 114                   /* creates workgroup on remote subnet */
 115                   if ((w = find_workgroupstruct(d,sname,True)))
 116                     {
 117                       announce_request(w, d->bcast_ip);
 118                     }
 119                 }
 120
 121           if (w)
 122                 add_server_entry(d,w,sname,stype,lp_max_ttl(),cmnt,False);
 123             }
 124         }
 125     }
 126
 127   if (rparam) free(rparam);
 128   if (rdata) free(rdata);
 129
 130   return(True);
 131 }
 132
 133
 134 /*******************************************************************
 135   synchronise browse lists with another browse server.
 136
 137   log in on the remote server's SMB port to their IPC$ service,
 138   do a NetServerEnum and update our server and workgroup databases.
 139   ******************************************************************/
 140 void sync_browse_lists(struct subnet_record *d, struct work_record *work,
 141                 char *name, int nm_type, struct in_addr ip, BOOL local)
 142 {
 143   uint32 local_type = local ? SV_TYPE_LOCAL_LIST_ONLY : 0;
 144
 145   if (!d || !work ) return;
 146
 147   if(d != wins_subnet) {
 148       DEBUG(0,
 149         ("sync_browse_lists: ERROR sync requested on non-WINS subnet.\n"));
 150       return;
 151   }
 152
 153   pid = getpid();
 154   uid = getuid();
 155   gid = getgid();
 156   mid = pid + 100;
 157   name_type = nm_type;
 158
 159   got_pass = True;
 160
 161   DEBUG(0,("sync_browse_lists: Sync browse lists with %s for %s %s\n",
 162             name, work->work_group, inet_ntoa(ip)));
 163
 164   strcpy(workgroup,work->work_group);
 165   fstrcpy(desthost,name);
 166   dest_ip = ip;
 167
 168   if (zero_ip(dest_ip)) return;
 169   have_ip = True;
 170
 171   connect_as_ipc = True;
 172
 173   /* connect as server and get domains, then servers */
 174
 175   sprintf(service,"\\\\%s\\IPC$", name);
 176   strupper(service);
 177
 178   if (cli_open_sockets(SMB_PORT))
 179     {
 180       if (cli_send_login(NULL,NULL,True,True))
 181       {
 182             add_info(d, work, local_type|SV_TYPE_DOMAIN_ENUM);
 183         if(local)
 184           add_info(d, work, SV_TYPE_LOCAL_LIST_ONLY);
 185         else
 186           add_info(d, work, SV_TYPE_ALL);
 187       }
 188
 189     close_sockets();
 190   }
 191 }