epan/dissectors/packet-ismp.c

   1 /* packet-ismp.c
   2  * Routines for ISMP dissection
   3  * Enterasys Networks Home: http://www.enterasys.com/
   4  * Copyright 2003, Joshua Craig Douglas <jdouglas@enterasys.com>
   5  *
   6  * $Id$
   7  *
   8  * Wireshark - Network traffic analyzer
   9  * By Gerald Combs <gerald@wireshark.org>
  10  * Copyright 1998 Gerald Combs
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software
  24  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  25  */
  26
  27 #ifdef HAVE_CONFIG_H
  28 # include "config.h"
  29 #endif
  30
  31 #include <stdio.h>
  32 #include <stdlib.h>
  33 #include <string.h>
  34
  35 #include <glib.h>
  36
  37 #include <epan/packet.h>
  38 #include <epan/strutil.h>
  39 #include <epan/etypes.h>
  40
  41
  42 /* Initialize the protocol and registered fields */
  43 static int proto_ismp = -1;
  44 static int hf_ismp_version = -1;
  45 static int hf_ismp_message_type = -1;
  46 static int hf_ismp_seq_num = -1;
  47 static int hf_ismp_code_length = -1;
  48 static int hf_ismp_auth_data = -1;
  49
  50 /* Enterasys/Cabletron Dicovery Protocol fields*/
  51 static int hf_ismp_edp_version = -1;
  52 static int hf_ismp_edp_module_ip = -1;
  53 static int hf_ismp_edp_module_mac = -1;
  54 static int hf_ismp_edp_module_port = -1;
  55 static int hf_ismp_edp_chassis_mac =-1;
  56 static int hf_ismp_edp_chassis_ip = -1;
  57 static int hf_ismp_edp_device_type = -1;
  58 static int hf_ismp_edp_module_rev = -1;
  59 static int hf_ismp_edp_options = -1;
  60 static int hf_ismp_edp_sfs_option_unused1 = -1;
  61 static int hf_ismp_edp_sfs_option_sfssup = -1;
  62 static int hf_ismp_edp_sfs_option_lsp = -1;
  63 static int hf_ismp_edp_sfs_option_flood = -1;
  64 static int hf_ismp_edp_sfs_option_resolve = -1;
  65 static int hf_ismp_edp_sfs_option_unused2 = -1;
  66 static int hf_ismp_edp_sfs_option_tagflood = -1;
  67 static int hf_ismp_edp_sfs_option_calltap = -1;
  68 static int hf_ismp_edp_sfs_option_conmsg = -1;
  69 static int hf_ismp_edp_sfs_option_redun = -1;
  70 static int hf_ismp_edp_sfs_option_isolated = -1;
  71 static int hf_ismp_edp_sfs_option_uplink_switch = -1;
  72 static int hf_ismp_edp_sfs_option_uplink_core = -1;
  73 static int hf_ismp_edp_sfs_option_uplink_port = -1;
  74 static int hf_ismp_edp_sfs_option_uplink_flood = -1;
  75 static int hf_ismp_edp_rtr_option_ssr = -1;
  76 static int hf_ismp_edp_rtr_option_igmp = -1;
  77 static int hf_ismp_edp_rtr_option_rip = -1;
  78 static int hf_ismp_edp_rtr_option_bgp = -1;
  79 static int hf_ismp_edp_rtr_option_ospf = -1;
  80 static int hf_ismp_edp_rtr_option_dvmrp = -1;
  81 static int hf_ismp_edp_rtr_option_8021q = -1;
  82 static int hf_ismp_edp_rtr_option_gvrp = -1;
  83 static int hf_ismp_edp_rtr_option_gmrp = -1;
  84 static int hf_ismp_edp_rtr_option_igmp_snoop = -1;
  85 static int hf_ismp_edp_rtr_option_route = -1;
  86 static int hf_ismp_edp_rtr_option_trans = -1;
  87 static int hf_ismp_edp_rtr_option_level1 = -1;
  88 static int hf_ismp_edp_switch_option_8021q = -1;
  89 static int hf_ismp_edp_switch_option_gvrp = -1;
  90 static int hf_ismp_edp_switch_option_gmrp = -1;
  91 static int hf_ismp_edp_switch_option_igmp = -1;
  92 static int hf_ismp_edp_switch_option_route = -1;
  93 static int hf_ismp_edp_switch_option_trans = -1;
  94 static int hf_ismp_edp_switch_option_level1 = -1;
  95 static int hf_ismp_edp_end_station_option_dhcp = -1;
  96 static int hf_ismp_edp_end_station_option_dns = -1;
  97 static int hf_ismp_edp_end_station_option_ad = -1;
  98 static int hf_ismp_edp_num_neighbors = -1;
  99 static int hf_ismp_edp_neighbors = -1;
 100 static int hf_ismp_edp_num_tuples = -1;
 101 static int hf_ismp_edp_tuples = -1;
 102
 103
 104 /* Initialize the subtree pointers */
 105 static gint ett_ismp = -1;
 106 static gint ett_ismp_edp = -1;
 107 static gint ett_ismp_edp_options = -1;
 108 static gint ett_ismp_edp_neighbors = -1;
 109 static gint ett_ismp_edp_neighbors_leaf = -1;
 110 static gint ett_ismp_edp_tuples = -1;
 111 static gint ett_ismp_edp_tuples_leaf = -1;
 112
 113 /* ISMP TYPES */
 114 #define ISMPTYPE_EDP    2
 115
 116
 117 /* EDP DEVICE TYPES */
 118 #define EDP_DEVICE_TYPE_SFS17           1
 119 #define EDP_DEVICE_TYPE_SFS18           2
 120 #define EDP_DEVICE_TYPE_ROUTER          3
 121 #define EDP_DEVICE_TYPE_BRIDGE          4
 122 #define EDP_DEVICE_TYPE_VLANMAN         5
 123 #define EDP_DEVICE_TYPE_NTSERVER        6
 124 #define EDP_DEVICE_TYPE_NTCLIENT        7
 125 #define EDP_DEVICE_TYPE_WIN95           8
 126 #define EDP_DEVICE_TYPE_WIN98           9
 127 #define EDP_DEVICE_TYPE_UNIXSERVER      10
 128 #define EDP_DEVICE_TYPE_UNIXCLIENT      11
 129 #define EDP_DEVICE_TYPE_ACCESSPOINT     12
 130
 131
 132 static const value_string edp_device_types[] = {
 133         { EDP_DEVICE_TYPE_SFS17,       "Network Switch running SecureFast version 1.7 or lower" },
 134         { EDP_DEVICE_TYPE_SFS18,         "Network Switch running SecureFast version 1.8 or greater" },
 135         { EDP_DEVICE_TYPE_ROUTER,         "Router" },
 136         { EDP_DEVICE_TYPE_BRIDGE,         "Bridge" },
 137         { EDP_DEVICE_TYPE_VLANMAN,         "Cabletron VLAN Manager" },
 138         { EDP_DEVICE_TYPE_NTSERVER,         "Network Server (NT)" },
 139         { EDP_DEVICE_TYPE_NTCLIENT,    "Network Workstation (NT)" },
 140         { EDP_DEVICE_TYPE_WIN95,     "Windows95" },
 141         { EDP_DEVICE_TYPE_WIN98,        "Windows98" },
 142         { EDP_DEVICE_TYPE_UNIXSERVER,       "UNIX Server" },
 143         { EDP_DEVICE_TYPE_UNIXCLIENT, "UNIX Workstation" },
 144         { EDP_DEVICE_TYPE_ACCESSPOINT,     "Roamabout wireless access point" },
 145         { 0,                    NULL },
 146 };
 147
 148
 149 /* EDP SFS Options */
 150 #define EDP_SFS_OPTION_UNUSED1          0x1
 151 #define EDP_SFS_OPTION_SFSSUP           0x2
 152 #define EDP_SFS_OPTION_LSP              0x4
 153 #define EDP_SFS_OPTION_FLOOD            0x8
 154 #define EDP_SFS_OPTION_RESOLVE          0x10
 155 #define EDP_SFS_OPTION_UNUSED2          0x20
 156 #define EDP_SFS_OPTION_TAGFLOOD         0x40
 157 #define EDP_SFS_OPTION_CALLTAP          0x80
 158 #define EDP_SFS_OPTION_CONMSG           0x100
 159 #define EDP_SFS_OPTION_REDUN            0x200
 160 #define EDP_SFS_OPTION_ISOLATED         0x400
 161 #define EDP_SFS_OPTION_UPLINK_SWITCH    0x800
 162 #define EDP_SFS_OPTION_UPLINK_CORE      0x1000
 163 #define EDP_SFS_OPTION_UPLINK_PORT      0x2000
 164 #define EDP_SFS_OPTION_UPLINK_FLOOD     0x4000
 165
 166 /* EDP Router Options */
 167 #define EDP_RTR_OPTION_SSR              0x1
 168 #define EDP_RTR_OPTION_IGMP             0x2
 169 #define EDP_RTR_OPTION_RIP              0x4
 170 #define EDP_RTR_OPTION_BGP              0x8
 171 #define EDP_RTR_OPTION_OSPF             0x10
 172 #define EDP_RTR_OPTION_DVMRP            0x20
 173 #define EDP_RTR_OPTION_8021Q            0x40
 174 #define EDP_RTR_OPTION_GVRP             0x80
 175 #define EDP_RTR_OPTION_GMRP             0x100
 176 #define EDP_RTR_OPTION_IGMP_SNOOP       0x200
 177 #define EDP_RTR_OPTION_ROUTE            0x400
 178 #define EDP_RTR_OPTION_TRANS            0x800
 179 #define EDP_RTR_OPTION_LEVEL1           0x1000
 180
 181 /* EDP Switch Options */
 182 #define EDP_SWITCH_OPTION_8021Q         0x1
 183 #define EDP_SWITCH_OPTION_GVRP          0x2
 184 #define EDP_SWITCH_OPTION_GMRP          0x4
 185 #define EDP_SWITCH_OPTION_IGMP          0x8
 186 #define EDP_SWITCH_OPTION_ROUTE         0x10
 187 #define EDP_SWITCH_OPTION_TRANS         0x20
 188 #define EDP_SWITCH_OPTION_LEVEL1        0x40
 189
 190 /* EDP End Station and Server Options */
 191 #define EDP_END_STATION_OPTION_DHCP     0x1
 192 #define EDP_END_STATION_OPTION_DNS      0x2
 193 #define EDP_END_STATION_OPTION_AD       0x4
 194
 195 /* EDP Tuple Types */
 196 #define EDP_TUPLE_UNKNOWN               0
 197 #define EDP_TUPLE_HOLD                  1
 198 #define EDP_TUPLE_INT_NAME              2
 199 #define EDP_TUPLE_SYS_DESCRIPT  3
 200 #define EDP_TUPLE_IPX_ADDR              4
 201
 202 static const value_string edp_tuple_types[] =
 203 {
 204         { EDP_TUPLE_UNKNOWN,"Unknown" },
 205         { EDP_TUPLE_HOLD,"Hold Time" },
 206         { EDP_TUPLE_INT_NAME,"Interface Name" },
 207         { EDP_TUPLE_SYS_DESCRIPT,"System Description" },
 208         { EDP_TUPLE_IPX_ADDR,"IPX Address" },
 209         { 0,NULL }
 210 };
 211
 212 /* Is value set? */
 213 static const true_false_string is_set = {
 214         "set",
 215         "not set"
 216 };
 217
 218
 219 /* Function to dissect EDP portion of ISMP message */
 220 static void
 221 dissect_ismp_edp(tvbuff_t *tvb, packet_info *pinfo, int offset, proto_tree *ismp_tree)
 222 {
 223         /* local variables used for EDP dissection */
 224         int neighbors_count = 0;
 225         int tuples_count = 0;
 226         guint16 device_type = 0;
 227         guint32 options = 0;
 228         guint16 num_neighbors = 0;
 229         guint16 num_tuples = 0;
 230         guint16 tuple_type = 0;
 231         guint16 tuple_length = 0;
 232         const guint8 *neighbors_ptr;
 233         const guint8 *tuples_ptr;
 234
 235         /* Set up structures needed to add the protocol subtree and manage it */
 236         proto_item *edp_ti;
 237         proto_tree *ismp_edp_tree;
 238
 239         proto_item *edp_options_ti;
 240         proto_tree *edp_options_tree;
 241
 242         proto_item *edp_neighbors_ti;
 243         proto_tree *edp_neighbors_tree;
 244
 245         proto_item *edp_neighbors_leaf_ti;
 246         proto_tree *edp_neighbors_leaf_tree;
 247
 248         proto_item *edp_tuples_ti;
 249         proto_tree *edp_tuples_tree;
 250
 251         proto_item *edp_tuples_leaf_ti;
 252         proto_tree *edp_tuples_leaf_tree;
 253
 254         /* add column iformation marking this as EDP (Enterasys Discover Protocol */
 255         if (check_col(pinfo->cinfo, COL_PROTOCOL))
 256                 col_set_str(pinfo->cinfo, COL_PROTOCOL, "EDP Message");
 257         if (check_col(pinfo->cinfo, COL_INFO))
 258                 col_clear(pinfo->cinfo, COL_INFO);
 259
 260         /* create display subtree for EDP */
 261         if (ismp_tree) {
 262                 edp_ti  = proto_tree_add_text(ismp_tree, tvb, offset, 0, "Enterasys Discovery Protocol");
 263                 ismp_edp_tree = proto_item_add_subtree(edp_ti, ett_ismp_edp);
 264
 265
 266                 proto_tree_add_item(ismp_edp_tree, hf_ismp_edp_version, tvb, offset, 2, FALSE);
 267                 offset += 2;
 268                 proto_tree_add_item(ismp_edp_tree, hf_ismp_edp_module_ip, tvb, offset, 4, FALSE);
 269                 offset += 4;
 270                 proto_tree_add_item(ismp_edp_tree, hf_ismp_edp_module_mac, tvb, offset, 6, FALSE);
 271                 offset += 6;
 272                 proto_tree_add_item(ismp_edp_tree, hf_ismp_edp_module_port, tvb, offset, 4, FALSE);
 273                 offset += 4;
 274                 proto_tree_add_item(ismp_edp_tree, hf_ismp_edp_chassis_mac, tvb, offset, 6, FALSE);
 275                 offset += 6;
 276                 proto_tree_add_item(ismp_edp_tree, hf_ismp_edp_chassis_ip, tvb, offset, 4, FALSE);
 277                 offset += 4;
 278                 device_type = tvb_get_ntohs(tvb, offset);
 279                 proto_tree_add_item(ismp_edp_tree, hf_ismp_edp_device_type, tvb, offset, 2, FALSE);
 280                 offset += 2;
 281                 proto_tree_add_uint_format(ismp_edp_tree, hf_ismp_edp_module_rev, tvb, offset, 4, tvb_get_ntohl(tvb, offset),
 282                         "Module Firmware Revision: %02x.%02x.%02x.%02x", tvb_get_guint8(tvb, offset),
 283                         tvb_get_guint8(tvb, offset+1), tvb_get_guint8(tvb, offset+2), tvb_get_guint8(tvb, offset+3));
 284                 offset += 4;
 285
 286                 /* create display subtree for EDP options */
 287                 options = tvb_get_ntohl(tvb, offset);
 288                 edp_options_ti = proto_tree_add_uint_format(ismp_edp_tree, hf_ismp_edp_options, tvb, offset, 4,
 289                         options,"Options: 0x%08x",options);
 290                 edp_options_tree = proto_item_add_subtree(edp_options_ti, ett_ismp_edp_options);
 291
 292                 /* depending on device_type, show the appropriate options */
 293                 switch (device_type) {
 294                         case EDP_DEVICE_TYPE_SFS17:
 295                         case EDP_DEVICE_TYPE_SFS18:
 296                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_sfs_option_uplink_flood, tvb, offset, 4, FALSE);
 297                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_sfs_option_uplink_port, tvb, offset, 4, FALSE);
 298                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_sfs_option_uplink_core, tvb, offset, 4, FALSE);
 299                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_sfs_option_uplink_switch, tvb, offset, 4, FALSE);
 300                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_sfs_option_isolated, tvb, offset, 4, FALSE);
 301                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_sfs_option_redun, tvb, offset, 4, FALSE);
 302                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_sfs_option_conmsg, tvb, offset, 4, FALSE);
 303                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_sfs_option_calltap, tvb, offset, 4, FALSE);
 304                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_sfs_option_tagflood, tvb, offset, 4, FALSE);
 305                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_sfs_option_unused2, tvb, offset, 4, FALSE);
 306                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_sfs_option_resolve, tvb, offset, 4, FALSE);
 307                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_sfs_option_flood, tvb, offset, 4, FALSE);
 308                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_sfs_option_lsp, tvb, offset, 4, FALSE);
 309                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_sfs_option_sfssup, tvb, offset, 4, FALSE);
 310                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_sfs_option_unused1, tvb, offset, 4, FALSE);
 311                                 break;
 312                         case EDP_DEVICE_TYPE_ROUTER:
 313                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_rtr_option_level1, tvb, offset, 4, FALSE);
 314                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_rtr_option_trans, tvb, offset, 4, FALSE);
 315                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_rtr_option_route, tvb, offset, 4, FALSE);
 316                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_rtr_option_igmp_snoop, tvb, offset, 4, FALSE);
 317                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_rtr_option_gmrp, tvb, offset, 4, FALSE);
 318                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_rtr_option_gvrp, tvb, offset, 4, FALSE);
 319                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_rtr_option_8021q, tvb, offset, 4, FALSE);
 320                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_rtr_option_dvmrp, tvb, offset, 4, FALSE);
 321                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_rtr_option_ospf, tvb, offset, 4, FALSE);
 322                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_rtr_option_bgp, tvb, offset, 4, FALSE);
 323                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_rtr_option_rip, tvb, offset, 4, FALSE);
 324                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_rtr_option_igmp, tvb, offset, 4, FALSE);
 325                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_rtr_option_ssr, tvb, offset, 4, FALSE);
 326                                 break;
 327                         case EDP_DEVICE_TYPE_BRIDGE:
 328                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_switch_option_level1, tvb, offset, 4, FALSE);
 329                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_switch_option_trans, tvb, offset, 4, FALSE);
 330                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_switch_option_route, tvb, offset, 4, FALSE);
 331                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_switch_option_igmp, tvb, offset, 4, FALSE);
 332                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_switch_option_gmrp, tvb, offset, 4, FALSE);
 333                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_switch_option_gvrp, tvb, offset, 4, FALSE);
 334                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_switch_option_8021q, tvb, offset, 4, FALSE);
 335                                 break;
 336                         case EDP_DEVICE_TYPE_VLANMAN:
 337                                 break;
 338                         case EDP_DEVICE_TYPE_NTSERVER:
 339                         case EDP_DEVICE_TYPE_NTCLIENT:
 340                         case EDP_DEVICE_TYPE_WIN95:
 341                         case EDP_DEVICE_TYPE_WIN98:
 342                         case EDP_DEVICE_TYPE_UNIXSERVER:
 343                         case EDP_DEVICE_TYPE_UNIXCLIENT:
 344                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_end_station_option_ad, tvb, offset, 4, FALSE);
 345                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_end_station_option_dns, tvb, offset, 4, FALSE);
 346                                 proto_tree_add_item(edp_options_tree, hf_ismp_edp_end_station_option_dhcp, tvb, offset, 4, FALSE);
 347                                 break;
 348                         case EDP_DEVICE_TYPE_ACCESSPOINT:
 349                         default:
 350                                 break;
 351                 }
 352                 offset += 4;
 353
 354                 /* determine the number of neighbors and create EDP neighbors subtree */
 355                 num_neighbors = tvb_get_ntohs(tvb, offset);
 356                 proto_tree_add_item(ismp_edp_tree, hf_ismp_edp_num_neighbors, tvb, offset, 2, FALSE);
 357                 offset += 2;
 358                 if (num_neighbors > 0)
 359                 {
 360                         tvb_ensure_bytes_exist(tvb, offset, num_neighbors*10);
 361                         if (tvb_reported_length_remaining(tvb, offset) >= (num_neighbors *10))
 362                         {
 363                                 neighbors_ptr = tvb_get_ptr( tvb, offset, (num_neighbors*10) );
 364                                 edp_neighbors_ti = proto_tree_add_bytes_format(ismp_edp_tree, hf_ismp_edp_neighbors, tvb,
 365                                         offset, num_neighbors*10, neighbors_ptr, "Neighbors:");
 366                         }
 367                         else
 368                         {
 369                                 neighbors_ptr = tvb_get_ptr( tvb, offset, tvb_reported_length_remaining(tvb, offset) );
 370                                 edp_neighbors_ti = proto_tree_add_bytes_format(ismp_edp_tree, hf_ismp_edp_neighbors, tvb,
 371                                         offset, num_neighbors *10, neighbors_ptr, "Neighbors:");
 372                         }
 373                         edp_neighbors_tree = proto_item_add_subtree(edp_neighbors_ti, ett_ismp_edp_neighbors);
 374                         while ( neighbors_count < num_neighbors && tvb_reported_length_remaining(tvb, offset) >= 10)
 375                         {
 376                                 edp_neighbors_leaf_ti = proto_tree_add_text(edp_neighbors_tree, tvb, offset, 10,
 377                                                 "Neighbor%d", (neighbors_count+1));
 378                                 edp_neighbors_leaf_tree = proto_item_add_subtree(edp_neighbors_leaf_ti, ett_ismp_edp_neighbors_leaf);
 379
 380                                 proto_tree_add_text(edp_neighbors_leaf_tree, tvb, offset, 6,
 381                                         "MAC Address: %s", ether_to_str(tvb_get_ptr(tvb, offset, 6)));
 382                                 proto_tree_add_text(edp_neighbors_leaf_tree, tvb, offset, 4,
 383                                         "Assigned Neighbor State 0x%04x",tvb_get_ntohl(tvb, offset));
 384                                 offset += 10;
 385                                 neighbors_count++;
 386                         }
 387                         if (neighbors_count != num_neighbors)
 388                         {
 389                                 proto_tree_add_text(ismp_edp_tree, tvb, offset, tvb_reported_length_remaining(tvb, offset),
 390                                 "MALFORMED PACKET");
 391                                 return;
 392                         }
 393                 }
 394
 395                 /* determine data remains, if so, count tuples
 396                    and create EDP tuples subtree */
 397                 if (tvb_reported_length_remaining(tvb, offset) != 0 &&
 398                         tvb_reported_length_remaining(tvb, offset) >= 2)
 399                 {
 400                         num_tuples = tvb_get_ntohs(tvb, offset);
 401                         proto_tree_add_item(ismp_edp_tree, hf_ismp_edp_num_tuples, tvb, offset, 2, FALSE);
 402                         offset += 2;
 403                 }
 404                 else if (tvb_reported_length_remaining(tvb, offset) > 0) {
 405                         proto_tree_add_text(ismp_edp_tree, tvb, offset,
 406                                 tvb_reported_length_remaining(tvb, offset), "MALFORMED PACKET");
 407                         return;
 408                 }
 409                 else
 410                 {
 411                         return;
 412                 }
 413
 414                 /* start populating tuple information */
 415                 if (num_tuples && tvb_reported_length_remaining(tvb, offset) >= 4)
 416                 {
 417                         tuples_ptr = tvb_get_ptr(tvb, offset, tvb_reported_length_remaining(tvb, offset));
 418                         edp_tuples_ti = proto_tree_add_bytes_format(ismp_edp_tree, hf_ismp_edp_tuples, tvb,
 419                                 offset, tvb_reported_length_remaining(tvb, offset), tuples_ptr, "Tuples:");
 420                         edp_tuples_tree = proto_item_add_subtree(edp_tuples_ti, ett_ismp_edp_tuples);
 421
 422                         while ( (tuples_count < num_tuples) && (tvb_reported_length_remaining(tvb, offset) >= 4) )
 423                         {
 424
 425                                 tuple_length = tvb_get_ntohs(tvb, offset+2);
 426                                 edp_tuples_leaf_ti = proto_tree_add_text(edp_tuples_tree, tvb, offset, tuple_length,
 427                                         "Tuple%d", tuples_count+1);
 428
 429                                 edp_tuples_leaf_tree = proto_item_add_subtree(edp_tuples_leaf_ti, ett_ismp_edp_tuples_leaf);
 430
 431                                 tuple_type = tvb_get_ntohs(tvb, offset);
 432                                 proto_tree_add_text(edp_tuples_leaf_tree, tvb, offset, 2,
 433                                         "Tuple Type: %s(%d)", val_to_str( tuple_type, edp_tuple_types, "Unknown"), tuple_type );
 434                                 offset += 2;
 435                                 proto_tree_add_text(edp_tuples_leaf_tree, tvb, offset, 2,
 436                                         "Tuple Length: %d", tuple_length);
 437                                 tuple_length -= 4;
 438                                 offset += 2;
 439
 440                                 if (tvb_reported_length_remaining(tvb, offset) >= tuple_length)
 441                                 {
 442                                         tvb_ensure_bytes_exist(tvb, offset, tuple_length);
 443                                         switch (tuple_type)
 444                                         {
 445                                                 case EDP_TUPLE_HOLD:
 446                                                         proto_tree_add_text(edp_tuples_leaf_tree, tvb, offset, tuple_length,
 447                                                                 "Hold Time = %d", tvb_get_ntohs(tvb, offset));
 448                                                         break;
 449                                                 case EDP_TUPLE_INT_NAME:
 450                                                         proto_tree_add_text(edp_tuples_leaf_tree, tvb, offset, tuple_length,
 451                                                                 "Interface Name = %s", tvb_format_text(tvb, offset, tuple_length));
 452                                                         break;
 453                                                 case EDP_TUPLE_SYS_DESCRIPT:
 454                                                         proto_tree_add_text(edp_tuples_leaf_tree, tvb, offset, tuple_length,
 455                                                                 "System Description = %s", tvb_format_text(tvb, offset, tuple_length));
 456                                                         break;
 457                                                 case EDP_TUPLE_IPX_ADDR:
 458                                                         proto_tree_add_text(edp_tuples_leaf_tree, tvb, offset, tuple_length,
 459                                                                 "Interface IPX_address = %s",
 460                                                                 ipx_addr_to_str(tvb_get_ntohl(tvb, offset),
 461                                                                 tvb_get_ptr(tvb, offset+4, tuple_length-4)));
 462                                                         break;
 463                                                 case EDP_TUPLE_UNKNOWN:
 464                                                 default:
 465                                                         proto_tree_add_text(edp_tuples_leaf_tree, tvb, offset, tuple_length,
 466                                                                 "Unknown Tuple Data %s", tvb_format_text(tvb, offset, tuple_length));
 467                                                         break;
 468                                         }
 469                                 }
 470                                 offset += tuple_length;
 471
 472                                 tuples_count++;
 473                                 tuple_type = 0;
 474                                 tuple_length = 0;
 475                         }
 476                         if (tuples_count != num_tuples)
 477                         {
 478                                 proto_tree_add_text(ismp_edp_tree, tvb, offset,
 479                                         tvb_reported_length_remaining(tvb, offset), "MALFORMED PACKET");
 480                                 return;
 481                         }
 482                         else
 483                         {
 484                                 return;
 485                         }
 486                 }
 487
 488         }
 489
 490
 491 }
 492
 493
 494 /* Code to actually dissect the packets */
 495 static void
 496 dissect_ismp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
 497 {
 498         int offset = 0;
 499         guint16 message_type = 0;
 500         guint8 code_length = 0;
 501         guint8 weird_stuff[3] = { 0x42, 0x42, 0x03 };
 502
 503 /* Set up structures needed to add the protocol subtree and manage it */
 504         proto_item *ti;
 505         proto_tree *ismp_tree;
 506
 507 /* Make entries in Protocol column and Info column on summary display */
 508         if (check_col(pinfo->cinfo, COL_PROTOCOL))
 509                 col_set_str(pinfo->cinfo, COL_PROTOCOL, "ISMP");
 510         if (check_col(pinfo->cinfo, COL_INFO))
 511                 col_clear(pinfo->cinfo, COL_INFO);
 512
 513         /*
 514          * XXX - I've seen captures with packets that have the ISMP
 515          * Ethernet frame type, but with the payload being 0x42 0x42 0x03
 516          * followed by what appears to be an ISMP frame.
 517          *
 518          * 0x4242 is not a valid ISMP version number.
 519          */
 520         if (tvb_memeql(tvb, offset, weird_stuff, sizeof weird_stuff) == 0)
 521                 offset += 3;    /* skip the weird stuff, for now */
 522         if (tree) {
 523                 /* create display subtree for ismp */
 524                 ti = proto_tree_add_item(tree, proto_ismp, tvb, offset, -1, FALSE);
 525
 526                 ismp_tree = proto_item_add_subtree(ti, ett_ismp);
 527
 528                 /* add an items to the subtree */
 529                 proto_tree_add_item(ismp_tree, hf_ismp_version, tvb, offset, 2, FALSE);
 530                 offset += 2;
 531                 message_type = tvb_get_ntohs(tvb, offset);
 532                 proto_tree_add_item(ismp_tree, hf_ismp_message_type, tvb, offset, 2, FALSE);
 533                 offset += 2;
 534                 proto_tree_add_item(ismp_tree, hf_ismp_seq_num, tvb, offset, 2, FALSE);
 535                 offset += 2;
 536                 code_length = tvb_get_guint8(tvb, offset);
 537                 proto_tree_add_item(ismp_tree, hf_ismp_code_length, tvb, offset, 1, FALSE);
 538                 offset += 1;
 539                 proto_tree_add_item(ismp_tree, hf_ismp_auth_data, tvb, offset, code_length, FALSE);
 540                 offset += code_length;
 541
 542                 /* if Enterasys Discover Protocol, dissect it */
 543                 if(message_type == ISMPTYPE_EDP)
 544                         dissect_ismp_edp(tvb, pinfo, offset, ismp_tree);
 545         }
 546
 547 }
 548
 549
 550 /* Register this protocol with Wireshark */
 551 void
 552 proto_register_ismp(void)
 553 {
 554
 555 /* Setup list of header fields  See Section 1.6.1 for details*/
 556         static hf_register_info hf[] = {
 557                 { &hf_ismp_version,
 558                         { "Version",           "ismp.version",
 559                         FT_UINT16, BASE_DEC, NULL, 0x0,
 560                         "", HFILL }
 561                 },
 562                 { &hf_ismp_message_type,
 563                         { "Message Type", "ismp.msgtype",
 564                         FT_UINT16, BASE_DEC, NULL, 0x0,
 565                         "", HFILL }
 566                 },
 567                 { &hf_ismp_seq_num,
 568                         { "Sequence Number", "ismp.seqnum",
 569                         FT_UINT16, BASE_DEC, NULL, 0x0,
 570                         "", HFILL }
 571                 },
 572                 { &hf_ismp_code_length,
 573                         { "Auth Code Length", "ismp.codelen",
 574                         FT_UINT8, BASE_DEC, NULL, 0x0,
 575                         "", HFILL }
 576                 },
 577                 { &hf_ismp_auth_data,
 578                         { "Auth Data", "ismp.authdata",
 579                         FT_BYTES, BASE_HEX, NULL, 0x0,
 580                         "", HFILL }
 581                 },
 582                 { &hf_ismp_edp_version,
 583                         { "Version", "ismp.edp.version",
 584                         FT_UINT16, BASE_DEC, NULL, 0x0,
 585                         "", HFILL }
 586                 },
 587                 { &hf_ismp_edp_module_ip,
 588                         { "Module IP Address", "ismp.edp.modip",
 589                         FT_IPv4, BASE_NONE, NULL, 0x0,
 590                         "", HFILL }
 591                 },
 592                 { &hf_ismp_edp_module_mac,
 593                         { "Module MAC Address", "ismp.edp.modmac",
 594                         FT_ETHER, BASE_NONE, NULL, 0x0,
 595                         "", HFILL }
 596                 },
 597                 { &hf_ismp_edp_module_port,
 598                         { "Module Port (ifIndex num)", "ismp.edp.modport",
 599                         FT_UINT32, BASE_DEC, NULL, 0x0,
 600                         "", HFILL }
 601                 },
 602                 { &hf_ismp_edp_chassis_mac,
 603                         { "Chassis MAC Address", "ismp.edp.chassismac",
 604                         FT_ETHER, BASE_NONE, NULL, 0x0,
 605                         "", HFILL }
 606                 },
 607                 { &hf_ismp_edp_chassis_ip,
 608                         { "Chassis IP Address", "ismp.edp.chassisip",
 609                         FT_IPv4, BASE_NONE, NULL, 0x0,
 610                         "", HFILL }
 611                 },
 612                 { &hf_ismp_edp_device_type,
 613                         { "Device Type", "ismp.edp.devtype",
 614                         FT_UINT16, BASE_DEC, edp_device_types, 0x0,
 615                         "", HFILL }
 616                 },
 617                 { &hf_ismp_edp_module_rev,
 618                         { "Module Firmware Revision", "ismp.edp.rev",
 619                         FT_UINT32, BASE_DEC, NULL, 0x0,
 620                         "", HFILL }
 621                 },
 622                 { &hf_ismp_edp_options,
 623                         { "Device Options", "ismp.edp.opts",
 624                         FT_UINT32, BASE_DEC, NULL, 0x0,
 625                         "", HFILL }
 626                 },
 627                 { &hf_ismp_edp_sfs_option_unused1,
 628                         { "Unused", "ismp.edp.opts",
 629                         FT_BOOLEAN, 32, TFS(&is_set), EDP_SFS_OPTION_UNUSED1,
 630                         "", HFILL }
 631                 },
 632                 { &hf_ismp_edp_sfs_option_sfssup,
 633                         { "SFS Support", "ismp.edp.opts",
 634                         FT_BOOLEAN, 32, TFS(&is_set), EDP_SFS_OPTION_SFSSUP,
 635                         "", HFILL }
 636                 },
 637                 { &hf_ismp_edp_sfs_option_lsp,
 638                         { "LSP Support", "ismp.edp.opts",
 639                         FT_BOOLEAN, 32, TFS(&is_set), EDP_SFS_OPTION_LSP,
 640                         "", HFILL }
 641                 },
 642                 { &hf_ismp_edp_sfs_option_flood,
 643                         { "Flood Path Support", "ismp.edp.opts",
 644                         FT_BOOLEAN, 32, TFS(&is_set), EDP_SFS_OPTION_FLOOD,
 645                         "", HFILL }
 646                 },
 647                 { &hf_ismp_edp_sfs_option_resolve,
 648                         { "Resolve Support", "ismp.edp.opts",
 649                         FT_BOOLEAN, 32, TFS(&is_set), EDP_SFS_OPTION_RESOLVE,
 650                         "", HFILL }
 651                 },
 652                 { &hf_ismp_edp_sfs_option_unused2,
 653                         { "Unused", "ismp.edp.opts",
 654                         FT_BOOLEAN, 32, TFS(&is_set), EDP_SFS_OPTION_UNUSED2,
 655                         "", HFILL }
 656                 },
 657                 { &hf_ismp_edp_sfs_option_tagflood,
 658                         { "Tagged Flood Support", "ismp.edp.opts",
 659                         FT_BOOLEAN, 32, TFS(&is_set), EDP_SFS_OPTION_TAGFLOOD,
 660                         "", HFILL }
 661                 },
 662                 { &hf_ismp_edp_sfs_option_calltap,
 663                         { "Call Tap Support", "ismp.edp.opts",
 664                         FT_BOOLEAN, 32, TFS(&is_set), EDP_SFS_OPTION_CALLTAP,
 665                         "", HFILL }
 666                 },
 667                 { &hf_ismp_edp_sfs_option_conmsg,
 668                         { "Connection Message Support", "ismp.edp.opts",
 669                         FT_BOOLEAN, 32, TFS(&is_set), EDP_SFS_OPTION_CONMSG,
 670                         "", HFILL }
 671                 },
 672                 { &hf_ismp_edp_sfs_option_redun,
 673                         { "Redundant Access Support", "ismp.edp.opts",
 674                         FT_BOOLEAN, 32, TFS(&is_set), EDP_SFS_OPTION_REDUN,
 675                         "", HFILL }
 676                 },
 677                 { &hf_ismp_edp_sfs_option_isolated,
 678                         { "Isolated Switch", "ismp.edp.opts",
 679                         FT_BOOLEAN, 32, TFS(&is_set), EDP_SFS_OPTION_ISOLATED,
 680                         "", HFILL }
 681                 },
 682                 { &hf_ismp_edp_sfs_option_uplink_switch,
 683                         { "Uplink Switch", "ismp.edp.opts",
 684                         FT_BOOLEAN, 32, TFS(&is_set), EDP_SFS_OPTION_UPLINK_SWITCH,
 685                         "", HFILL }
 686                 },
 687                 { &hf_ismp_edp_sfs_option_uplink_core,
 688                         { "Uplink Core", "ismp.edp.opts",
 689                         FT_BOOLEAN, 32, TFS(&is_set), EDP_SFS_OPTION_UPLINK_CORE,
 690                         "", HFILL }
 691                 },
 692                 { &hf_ismp_edp_sfs_option_uplink_port,
 693                         { "Uplink Port", "ismp.edp.opts",
 694                         FT_BOOLEAN, 32, TFS(&is_set), EDP_SFS_OPTION_UPLINK_PORT,
 695                         "", HFILL }
 696                 },
 697                 { &hf_ismp_edp_sfs_option_uplink_flood,
 698                         { "Uplink Flood Support", "ismp.edp.opts",
 699                         FT_BOOLEAN, 32, TFS(&is_set), EDP_SFS_OPTION_UPLINK_FLOOD,
 700                         "", HFILL }
 701                 },
 702                 { &hf_ismp_edp_rtr_option_ssr,
 703                         { "SSR Type Device", "ismp.edp.opts",
 704                         FT_BOOLEAN, 32, TFS(&is_set), EDP_RTR_OPTION_SSR,
 705                         "", HFILL }
 706                 },
 707                 { &hf_ismp_edp_rtr_option_igmp,
 708                         { "IGMP Active", "ismp.edp.opts",
 709                         FT_BOOLEAN, 32, TFS(&is_set), EDP_RTR_OPTION_IGMP,
 710                         "", HFILL }
 711                 },
 712                 { &hf_ismp_edp_rtr_option_rip,
 713                         { "RIP Active", "ismp.edp.opts",
 714                         FT_BOOLEAN, 32, TFS(&is_set), EDP_RTR_OPTION_RIP,
 715                         "", HFILL }
 716                 },
 717                 { &hf_ismp_edp_rtr_option_bgp,
 718                         { "BGP Active", "ismp.edp.opts",
 719                         FT_BOOLEAN, 32, TFS(&is_set), EDP_RTR_OPTION_BGP,
 720                         "", HFILL }
 721                 },
 722                 { &hf_ismp_edp_rtr_option_ospf,
 723                         { "OSPF Active", "ismp.edp.opts",
 724                         FT_BOOLEAN, 32, TFS(&is_set), EDP_RTR_OPTION_OSPF,
 725                         "", HFILL }
 726                 },
 727                 { &hf_ismp_edp_rtr_option_dvmrp,
 728                         { "DVMRP Active", "ismp.edp.opts",
 729                         FT_BOOLEAN, 32, TFS(&is_set), EDP_RTR_OPTION_DVMRP,
 730                         "", HFILL }
 731                 },
 732                 { &hf_ismp_edp_rtr_option_8021q,
 733                         { "802.1Q Support", "ismp.edp.opts",
 734                         FT_BOOLEAN, 32, TFS(&is_set), EDP_RTR_OPTION_8021Q,
 735                         "", HFILL }
 736                 },
 737                 { &hf_ismp_edp_rtr_option_gvrp,
 738                         { "GVRP Support", "ismp.edp.opts",
 739                         FT_BOOLEAN, 32, TFS(&is_set), EDP_RTR_OPTION_GVRP,
 740                         "", HFILL }
 741                 },
 742                 { &hf_ismp_edp_rtr_option_gmrp,
 743                         { "GMRP Support", "ismp.edp.opts",
 744                         FT_BOOLEAN, 32, TFS(&is_set), EDP_RTR_OPTION_GMRP,
 745                         "", HFILL }
 746                 },
 747                 { &hf_ismp_edp_rtr_option_igmp_snoop,
 748                         { "IGMP Snooping Support", "ismp.edp.opts",
 749                         FT_BOOLEAN, 32, TFS(&is_set), EDP_RTR_OPTION_IGMP_SNOOP,
 750                         "", HFILL }
 751                 },
 752                 { &hf_ismp_edp_rtr_option_route,
 753                         { "Route Bridging", "ismp.edp.opts",
 754                         FT_BOOLEAN, 32, TFS(&is_set), EDP_RTR_OPTION_ROUTE,
 755                         "", HFILL }
 756                 },
 757                 { &hf_ismp_edp_rtr_option_trans,
 758                         { "Transparent Bridging", "ismp.edp.opts",
 759                         FT_BOOLEAN, 32, TFS(&is_set), EDP_RTR_OPTION_TRANS,
 760                         "", HFILL }
 761                 },
 762                 { &hf_ismp_edp_rtr_option_level1,
 763                         { "Level 1 Functionality", "ismp.edp.opts",
 764                         FT_BOOLEAN, 32, TFS(&is_set), EDP_RTR_OPTION_LEVEL1,
 765                         "", HFILL }
 766                 },
 767                 { &hf_ismp_edp_switch_option_8021q,
 768                         { "802.1Q Support", "ismp.edp.opts",
 769                         FT_BOOLEAN, 32, TFS(&is_set), EDP_SWITCH_OPTION_8021Q,
 770                         "", HFILL }
 771                 },
 772                 { &hf_ismp_edp_switch_option_gvrp,
 773                         { "GVRP Support", "ismp.edp.opts",
 774                         FT_BOOLEAN, 32, TFS(&is_set), EDP_SWITCH_OPTION_GVRP,
 775                         "", HFILL }
 776                 },
 777                 { &hf_ismp_edp_switch_option_gmrp,
 778                         { "GMRP Support", "ismp.edp.opts",
 779                         FT_BOOLEAN, 32, TFS(&is_set), EDP_SWITCH_OPTION_GMRP,
 780                         "", HFILL }
 781                 },
 782                 { &hf_ismp_edp_switch_option_igmp,
 783                         { "IGMP Snooping Support", "ismp.edp.opts",
 784                         FT_BOOLEAN, 32, TFS(&is_set), EDP_SWITCH_OPTION_IGMP,
 785                         "", HFILL }
 786                 },
 787                 { &hf_ismp_edp_switch_option_route,
 788                         { "Route Bridging", "ismp.edp.opts",
 789                         FT_BOOLEAN, 32, TFS(&is_set), EDP_SWITCH_OPTION_ROUTE,
 790                         "", HFILL }
 791                 },
 792                 { &hf_ismp_edp_switch_option_trans,
 793                         { "Transparent Bridging", "ismp.edp.opts",
 794                         FT_BOOLEAN, 32, TFS(&is_set), EDP_SWITCH_OPTION_TRANS,
 795                         "", HFILL }
 796                 },
 797                 { &hf_ismp_edp_switch_option_level1,
 798                         { "Level 1 Functionality", "ismp.edp.opts",
 799                         FT_BOOLEAN, 32, TFS(&is_set), EDP_SWITCH_OPTION_LEVEL1,
 800                         "", HFILL }
 801                 },
 802                 { &hf_ismp_edp_end_station_option_dhcp,
 803                         { "DHCP Enabled", "ismp.edp.opts",
 804                         FT_BOOLEAN, 32, TFS(&is_set), EDP_END_STATION_OPTION_DHCP,
 805                         "", HFILL }
 806                 },
 807                 { &hf_ismp_edp_end_station_option_dns,
 808                         { "DNS Enabled", "ismp.edp.opts",
 809                         FT_BOOLEAN, 32, TFS(&is_set), EDP_END_STATION_OPTION_DNS,
 810                         "", HFILL }
 811                 },
 812                 { &hf_ismp_edp_end_station_option_ad,
 813                         { "Active Directory Enabled", "ismp.edp.opts",
 814                         FT_BOOLEAN, 32, TFS(&is_set), EDP_END_STATION_OPTION_AD,
 815                         "", HFILL }
 816                 },
 817                 { &hf_ismp_edp_num_neighbors,
 818                         { "Number of Known Neighbors", "ismp.edp.maccount",
 819                         FT_UINT16, BASE_DEC, NULL, 0x0,
 820                         "", HFILL }
 821                 },
 822                 { &hf_ismp_edp_neighbors,
 823                         { "Neighbors", "ismp.edp.nbrs",
 824                         FT_BYTES, BASE_NONE, NULL, 0x0,
 825                         "", HFILL }
 826                 },
 827                 { &hf_ismp_edp_num_tuples,
 828                         { "Number of Tuples", "ismp.edp.numtups",
 829                         FT_UINT16, BASE_DEC, NULL, 0x0,
 830                         "", HFILL }
 831                 },
 832                 { &hf_ismp_edp_tuples,
 833                         { "Number of Tuples", "ismp.edp.tups",
 834                         FT_BYTES, BASE_NONE, NULL, 0x0,
 835                         "", HFILL }
 836                 },
 837         };
 838
 839 /* Setup protocol subtree array */
 840         static gint *ett[] = {
 841                 &ett_ismp,
 842                 &ett_ismp_edp,
 843                 &ett_ismp_edp_options,
 844                 &ett_ismp_edp_neighbors,
 845                 &ett_ismp_edp_neighbors_leaf,
 846                 &ett_ismp_edp_tuples,
 847                 &ett_ismp_edp_tuples_leaf,
 848         };
 849
 850 /* Register the protocol name and description */
 851         proto_ismp = proto_register_protocol("InterSwitch Message Protocol",
 852             "ISMP", "ismp");
 853
 854 /* Required function calls to register the header fields and subtrees used */
 855         proto_register_field_array(proto_ismp, hf, array_length(hf));
 856         proto_register_subtree_array(ett, array_length(ett));
 857 }
 858
 859
 860 /* If this dissector uses sub-dissector registration add a registration routine.
 861    This format is required because a script is used to find these routines and
 862    create the code that calls these routines.
 863 */
 864 void
 865 proto_reg_handoff_ismp(void)
 866 {
 867         dissector_handle_t ismp_handle;
 868
 869         ismp_handle = create_dissector_handle(dissect_ismp,
 870             proto_ismp);
 871         dissector_add("ethertype", ETHERTYPE_ISMP, ismp_handle);
 872 }