source/nbt_server/nbt_server.h

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    NBT server structures
   5
   6    Copyright (C) Andrew Tridgell        2005
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 2 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21 */
  22
  23 #include "libcli/nbt/libnbt.h"
  24 #include "libcli/wrepl/winsrepl.h"
  25 #include "libcli/dgram/libdgram.h"
  26 #include "librpc/gen_ndr/irpc.h"
  27 #include "lib/messaging/irpc.h"
  28
  29 /*
  30    a list of our registered names on each interface
  31 */
  32 struct nbtd_iface_name {
  33         struct nbtd_iface_name *next, *prev;
  34         struct nbtd_interface *iface;
  35         struct nbt_name name;
  36         uint16_t nb_flags;
  37         struct timeval registration_time;
  38         uint32_t ttl;
  39
  40         /* if registered with a wins server, then this lists the server being
  41            used */
  42         const char *wins_server;
  43 };
  44
  45
  46 /* a list of network interfaces we are listening on */
  47 struct nbtd_interface {
  48         struct nbtd_interface *next, *prev;
  49         struct nbtd_server *nbtsrv;
  50         const char *ip_address;
  51         const char *bcast_address;
  52         const char *netmask;
  53         struct nbt_name_socket *nbtsock;
  54         struct nbt_dgram_socket *dgmsock;
  55         struct nbtd_iface_name *names;
  56 };
  57
  58
  59 /*
  60   top level context structure for the nbt server
  61 */
  62 struct nbtd_server {
  63         struct task_server *task;
  64
  65         /* the list of local network interfaces */
  66         struct nbtd_interface *interfaces;
  67
  68         /* broadcast interface used for receiving packets only */
  69         struct nbtd_interface *bcast_interface;
  70
  71         /* wins client interface - used for registering and refreshing
  72            our names with a WINS server */
  73         struct nbtd_interface *wins_interface;
  74
  75         struct wins_server *winssrv;
  76
  77         struct nbtd_statistics stats;
  78
  79         struct ldb_context *sam_ctx;
  80 };
  81
  82
  83
  84 /* check a condition on an incoming packet */
  85 #define NBTD_ASSERT_PACKET(packet, src, test) do { \
  86         if (!(test)) { \
  87                 nbtd_bad_packet(packet, src, #test); \
  88                 return; \
  89         } \
  90 } while (0)
  91
  92 #include "nbt_server/nbt_server_proto.h"