packet-ypbind.c

   1 /* packet-ypbind.c
   2  * Routines for ypbind dissection
   3  *
   4  * $Id: packet-ypbind.c,v 1.9 2002/01/05 21:49:36 guy Exp $
   5  *
   6  * Ethereal - Network traffic analyzer
   7  * By Gerald Combs <gerald@zing.org>
   8  * Copyright 1998 Gerald Combs
   9  *
  10  * Copied from packet-smb.c
  11  *
  12  *    2001  Ronnie Sahlberg, added dissectors for the commands
  13  *
  14  * This program is free software; you can redistribute it and/or
  15  * modify it under the terms of the GNU General Public License
  16  * as published by the Free Software Foundation; either version 2
  17  * of the License, or (at your option) any later version.
  18  *
  19  * This program is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License
  25  * along with this program; if not, write to the Free Software
  26  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  27  */
  28
  29 #ifdef HAVE_CONFIG_H
  30 #include "config.h"
  31 #endif
  32
  33
  34 #ifdef HAVE_SYS_TYPES_H
  35 #include <sys/types.h>
  36 #endif
  37
  38
  39 #include "packet-rpc.h"
  40 #include "packet-ypbind.h"
  41
  42 static int proto_ypbind = -1;
  43 static int hf_ypbind_domain = -1;
  44 static int hf_ypbind_resp_type = -1;
  45 static int hf_ypbind_error = -1;
  46 static int hf_ypbind_addr = -1;
  47 static int hf_ypbind_port = -1;
  48 static int hf_ypbind_setdom_version = -1;
  49
  50 static gint ett_ypbind = -1;
  51
  52
  53 static int
  54 dissect_ypbind_domain_v2_request(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree)
  55 {
  56         /* domain */
  57         offset = dissect_rpc_string(tvb, pinfo, tree,
  58                         hf_ypbind_domain, offset, NULL);
  59
  60         return offset;
  61 }
  62
  63 #define YPBIND_RESP_TYPE_SUCC_VAL       1
  64 #define YPBIND_RESP_TYPE_FAIL_VAL       2
  65 static const value_string resp_type_vals[] = {
  66         {YPBIND_RESP_TYPE_SUCC_VAL,     "SUCC_VAL"},
  67         {YPBIND_RESP_TYPE_FAIL_VAL,     "FAIL_VAL"},
  68         {0, NULL}
  69 };
  70
  71 #define YPBIND_ERROR_ERR        1
  72 #define YPBIND_ERROR_NOSERV     2
  73 #define YPBIND_ERROR_RESC       3
  74 static const value_string error_vals[] = {
  75         {YPBIND_ERROR_ERR,      "Internal error"},
  76         {YPBIND_ERROR_NOSERV,   "No bound server for passed domain"},
  77         {YPBIND_ERROR_RESC,     "System resource allocation failure"},
  78         {0, NULL}
  79 };
  80
  81 static int
  82 dissect_ypbind_domain_v2_reply(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree)
  83 {
  84         guint32 type;
  85         guint32 tid;
  86
  87         /* response type */
  88         type=tvb_get_ntohl(tvb, offset);
  89         offset = dissect_rpc_uint32(tvb, pinfo, tree, hf_ypbind_resp_type, offset);
  90
  91         switch(type){
  92         case YPBIND_RESP_TYPE_SUCC_VAL:
  93                 /* ip address */
  94                 tid=tvb_get_ntohl(tvb,offset);
  95                 tid=((tid&0x000000ff)<<24)|((tid&0x0000ff00)<<8)
  96                         |((tid&0x00ff0000)>>8)|((tid&0xff000000)>>24);
  97                 proto_tree_add_ipv4(tree, hf_ypbind_addr,
  98                         tvb, offset, 4, tid);
  99                 offset += 4;
 100
 101                 /* port */
 102                 offset = dissect_rpc_uint32(tvb, pinfo, tree,
 103                                 hf_ypbind_port, offset);
 104
 105                 break;
 106         case YPBIND_RESP_TYPE_FAIL_VAL:
 107                 /* error */
 108                 offset = dissect_rpc_uint32(tvb, pinfo, tree,
 109                                 hf_ypbind_resp_type, offset);
 110                 break;
 111         }
 112
 113         return offset;
 114 }
 115
 116 static int
 117 dissect_ypbind_setdomain_v2_request(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree)
 118 {
 119         guint32 tid;
 120
 121         /* domain */
 122         offset = dissect_rpc_string(tvb, pinfo, tree,
 123                         hf_ypbind_domain, offset, NULL);
 124
 125         /* ip address */
 126         tid=tvb_get_ntohl(tvb,offset);
 127         tid=((tid&0x000000ff)<<24)|((tid&0x0000ff00)<<8)
 128                 |((tid&0x00ff0000)>>8)|((tid&0xff000000)>>24);
 129         proto_tree_add_ipv4(tree, hf_ypbind_addr,
 130                 tvb, offset, 4, tid);
 131         offset += 4;
 132
 133         /* port */
 134         offset = dissect_rpc_uint32(tvb, pinfo, tree,
 135                         hf_ypbind_port, offset);
 136
 137         /* version */
 138         offset = dissect_rpc_uint32(tvb, pinfo, tree,
 139                         hf_ypbind_setdom_version, offset);
 140
 141         return offset;
 142 }
 143
 144
 145
 146 /* proc number, "proc name", dissect_request, dissect_reply */
 147 /* NULL as function pointer means: type of arguments is "void". */
 148 static const vsff ypbind1_proc[] = {
 149         { YPBINDPROC_NULL,      "NULL",         NULL,                           NULL },
 150         { YPBINDPROC_DOMAIN,    "DOMAIN",               NULL,                           NULL },
 151         { YPBINDPROC_SETDOM,    "SETDOMAIN",            NULL,                           NULL },
 152         { 0,    NULL,           NULL,                           NULL }
 153 };
 154 /* end of YPBind version 1 */
 155
 156 static const vsff ypbind2_proc[] = {
 157         { YPBINDPROC_NULL,      "NULL",         NULL,                           NULL },
 158         { YPBINDPROC_DOMAIN,    "DOMAIN",
 159                 dissect_ypbind_domain_v2_request, dissect_ypbind_domain_v2_reply},
 160         { YPBINDPROC_SETDOM,    "SETDOMAIN",
 161                 dissect_ypbind_setdomain_v2_request, NULL},
 162         { 0,    NULL,       NULL,               NULL }
 163 };
 164 /* end of YPBind version 2 */
 165
 166
 167 void
 168 proto_register_ypbind(void)
 169 {
 170         static hf_register_info hf[] = {
 171                 { &hf_ypbind_domain, {
 172                         "Domain", "ypbind.domain", FT_STRING, BASE_DEC,
 173                         NULL, 0, "Name of the NIS/YP Domain", HFILL }},
 174
 175                 { &hf_ypbind_resp_type, {
 176                         "Response Type", "ypbind.resp_type", FT_UINT32, BASE_DEC,
 177                         VALS(resp_type_vals), 0, "Response type", HFILL }},
 178
 179                 { &hf_ypbind_error, {
 180                         "Error", "ypbind.error", FT_UINT32, BASE_DEC,
 181                         VALS(error_vals), 0, "YPBIND Error code", HFILL }},
 182
 183                 { &hf_ypbind_addr, {
 184                         "IP Addr", "ypbind.addr", FT_IPv4, BASE_DEC,
 185                         NULL, 0, "IP Address of server", HFILL }},
 186
 187                 { &hf_ypbind_port, {
 188                         "Port", "ypbind.port", FT_UINT32, BASE_DEC,
 189                         NULL, 0, "Port to use", HFILL }},
 190
 191                 { &hf_ypbind_setdom_version, {
 192                         "Version", "ypbind.setdom.version", FT_UINT32, BASE_DEC,
 193                         NULL, 0, "Version of setdom", HFILL }},
 194
 195         };
 196
 197         static gint *ett[] = {
 198                 &ett_ypbind,
 199         };
 200
 201         proto_ypbind = proto_register_protocol("Yellow Pages Bind",
 202             "YPBIND", "ypbind");
 203         proto_register_field_array(proto_ypbind, hf, array_length(hf));
 204         proto_register_subtree_array(ett, array_length(ett));
 205 }
 206
 207 void
 208 proto_reg_handoff_ypbind(void)
 209 {
 210         /* Register the protocol as RPC */
 211         rpc_init_prog(proto_ypbind, YPBIND_PROGRAM, ett_ypbind);
 212         /* Register the procedure tables */
 213         rpc_init_proc_table(YPBIND_PROGRAM, 1, ypbind1_proc);
 214         rpc_init_proc_table(YPBIND_PROGRAM, 2, ypbind2_proc);
 215 }