From 669db206cb1f270046ad400fff7655e20c63e723 Mon Sep 17 00:00:00 2001 From: Gilbert Ramirez Date: Sun, 18 Jul 2004 18:06:47 +0000 Subject: Move dissectors to epan/dissectors directory. Also move ncp222.py, x11-fields, process-x11-fields.pl, make-reg-dotc, and make-reg-dotc.py. Adjust #include lines in files that include packet-*.h files. svn path=/trunk/; revision=11410 --- epan/dissectors/packet-vtp.c | 698 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 698 insertions(+) create mode 100644 epan/dissectors/packet-vtp.c (limited to 'epan/dissectors/packet-vtp.c') diff --git a/epan/dissectors/packet-vtp.c b/epan/dissectors/packet-vtp.c new file mode 100644 index 0000000000..0b82539b81 --- /dev/null +++ b/epan/dissectors/packet-vtp.c @@ -0,0 +1,698 @@ +/* packet-vtp.c + * Routines for the disassembly of Cisco's Virtual Trunking Protocol + * + * $Id$ + * + * Ethereal - Network traffic analyzer + * By Gerald Combs + * Copyright 1998 Gerald Combs + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#include "config.h" + +#include +#include + +#include +#include + +/* + * See + * + * http://www.cisco.com/univercd/cc/td/doc/product/lan/trsrb/frames.htm + * + * for some information on VTP. + * + * It's incomplete, and it appears to be inaccurate in a number of places, + * but it's all I could find.... + */ + +static int proto_vtp = -1; +static int hf_vtp_version = -1; +static int hf_vtp_code = -1; +static int hf_vtp_followers = -1; +static int hf_vtp_md_len = -1; +static int hf_vtp_md = -1; +static int hf_vtp_conf_rev_num = -1; +static int hf_vtp_upd_id = -1; +static int hf_vtp_upd_ts = -1; +static int hf_vtp_md5_digest = -1; +static int hf_vtp_seq_num = -1; +static int hf_vtp_start_value = -1; +static int hf_vtp_vlan_info_len = -1; +static int hf_vtp_vlan_status_vlan_susp = -1; +static int hf_vtp_vlan_type = -1; +static int hf_vtp_vlan_name_len = -1; +static int hf_vtp_isl_vlan_id = -1; +static int hf_vtp_mtu_size = -1; +static int hf_vtp_802_10_index = -1; +static int hf_vtp_vlan_name = -1; +static int hf_vtp_vlan_tlvtype = -1; +static int hf_vtp_vlan_tlvlength = -1; + +static gint ett_vtp = -1; +static gint ett_vtp_vlan_info = -1; +static gint ett_vtp_vlan_status = -1; +static gint ett_vtp_tlv = -1; + +static int +dissect_vlan_info(tvbuff_t *tvb, int offset, proto_tree *tree); +static void +dissect_vlan_info_tlv(tvbuff_t *tvb, int offset, int length, + proto_tree *tree, proto_item *ti, guint8 type); + +#define SUMMARY_ADVERT 0x01 +#define SUBSET_ADVERT 0x02 +#define ADVERT_REQUEST 0x03 + +static const value_string type_vals[] = { + { SUMMARY_ADVERT, "Summary-Advert" }, + { SUBSET_ADVERT, "Subset-Advert" }, + { ADVERT_REQUEST, "Advert-Request" }, + { 0, NULL }, +}; + +static void +dissect_vtp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) +{ + proto_item *ti; + proto_tree *vtp_tree = NULL; + int offset = 0; + guint8 code; + guint8 md_len; + const guint8 *upd_timestamp; + int vlan_info_len; + + if (check_col(pinfo->cinfo, COL_PROTOCOL)) + col_set_str(pinfo->cinfo, COL_PROTOCOL, "VTP"); + if (check_col(pinfo->cinfo, COL_INFO)) + col_set_str(pinfo->cinfo, COL_INFO, "Virtual Trunking Protocol"); + + if (tree) { + ti = proto_tree_add_item(tree, proto_vtp, tvb, offset, -1, + FALSE); + vtp_tree = proto_item_add_subtree(ti, ett_vtp); + + proto_tree_add_item(vtp_tree, hf_vtp_version, tvb, offset, 1, + FALSE); + offset += 1; + + code = tvb_get_guint8(tvb, offset); + proto_tree_add_uint(vtp_tree, hf_vtp_code, tvb, offset, 1, + code); + offset += 1; + + switch (code) { + + case SUMMARY_ADVERT: + proto_tree_add_item(vtp_tree, hf_vtp_followers, tvb, offset, + 1, FALSE); + offset += 1; + + md_len = tvb_get_guint8(tvb, offset); + proto_tree_add_uint(vtp_tree, hf_vtp_md_len, tvb, offset, + 1, md_len); + offset += 1; + + proto_tree_add_item(vtp_tree, hf_vtp_md, tvb, offset, + 32, FALSE); + offset += 32; + + proto_tree_add_item(vtp_tree, hf_vtp_conf_rev_num, tvb, + offset, 4, FALSE); + offset += 4; + + proto_tree_add_item(vtp_tree, hf_vtp_upd_id, tvb, + offset, 4, FALSE); + offset += 4; + + upd_timestamp = tvb_get_ptr(tvb, offset, 12); + proto_tree_add_string_format(vtp_tree, hf_vtp_upd_ts, tvb, + offset, 12, upd_timestamp, + "Update Timestamp: %.2s-%.2s-%.2s %.2s:%.2s:%.2s", + &upd_timestamp[0], &upd_timestamp[2], &upd_timestamp[4], + &upd_timestamp[6], &upd_timestamp[8], &upd_timestamp[10]); + offset += 12; + + proto_tree_add_item(vtp_tree, hf_vtp_md5_digest, tvb, + offset, 16, FALSE); + break; + + case SUBSET_ADVERT: + proto_tree_add_item(vtp_tree, hf_vtp_seq_num, tvb, offset, + 1, FALSE); + offset += 1; + + md_len = tvb_get_guint8(tvb, offset); + proto_tree_add_uint(vtp_tree, hf_vtp_md_len, tvb, offset, + 1, md_len); + offset += 1; + + proto_tree_add_item(vtp_tree, hf_vtp_md, tvb, offset, + 32, FALSE); + offset += 32; + + proto_tree_add_item(vtp_tree, hf_vtp_conf_rev_num, tvb, + offset, 4, FALSE); + offset += 4; + + while (tvb_reported_length_remaining(tvb, offset) > 0) { + vlan_info_len = + dissect_vlan_info(tvb, offset, vtp_tree); + if (vlan_info_len < 0) + break; + offset += vlan_info_len; + } + break; + + case ADVERT_REQUEST: + offset += 1; /* skip reserved field */ + + md_len = tvb_get_guint8(tvb, offset); + proto_tree_add_uint(vtp_tree, hf_vtp_md_len, tvb, offset, + 1, md_len); + offset += 1; + + proto_tree_add_item(vtp_tree, hf_vtp_start_value, tvb, + offset, 2, FALSE); + break; + + case 0x04: + /* + * Mysterious type, seen a lot. + * Is this some mutant variant of Advert-Request? + */ + offset += 1; /* skip unknown field */ + + md_len = tvb_get_guint8(tvb, offset); + proto_tree_add_uint(vtp_tree, hf_vtp_md_len, tvb, offset, + 1, md_len); + offset += 1; + + proto_tree_add_item(vtp_tree, hf_vtp_md, tvb, offset, + 32, FALSE); + offset += 32; + + offset += 2; /* skip unknown field */ + + proto_tree_add_text(vtp_tree, tvb, offset, 2, + "VLAN ID of some sort: 0x%04x", + tvb_get_ntohs(tvb, offset)); + offset += 2; + break; + } + } +} + +#define VLAN_SUSPENDED 0x01 + +static const value_string vlan_type_vals[] = { + { 0x01, "Ethernet" }, + { 0x02, "FDDI" }, + { 0x03, "TrCRF" }, + { 0x04, "FDDI-net" }, + { 0x05, "TrBRF" }, + { 0, NULL }, +}; + +#define SR_RING_NUM 0x01 +#define SR_BRIDGE_NUM 0x02 +#define STP_TYPE 0x03 +#define PARENT_VLAN 0x04 +#define TR_BRIDGED_VLANS 0x05 +#define PRUNING 0x06 +#define BRIDGE_TYPE 0x07 +#define MAX_ARE_HOP_CNT 0x08 +#define MAX_STE_HOP_CNT 0x09 +#define BACKUP_CRF_MODE 0x0A + +static const value_string vlan_tlv_type_vals[] = { + { SR_RING_NUM, "Source-Routing Ring Number" }, + { SR_BRIDGE_NUM, "Source-Routing Bridge Number" }, + { STP_TYPE, "Spanning-Tree Protocol Type" }, + { PARENT_VLAN, "Parent VLAN" }, + { TR_BRIDGED_VLANS, "Translationally Bridged VLANs" }, + { PRUNING, "Pruning" }, + { BRIDGE_TYPE, "Bridge Type" }, + { MAX_ARE_HOP_CNT, "Max ARE Hop Count" }, + { MAX_STE_HOP_CNT, "Max STE Hop Count" }, + { BACKUP_CRF_MODE, "Backup CRF Mode" }, + { 0, NULL }, +}; + +static int +dissect_vlan_info(tvbuff_t *tvb, int offset, proto_tree *tree) +{ + proto_item *ti; + proto_tree *vlan_info_tree; + proto_tree *status_tree; + guint8 vlan_info_len; + int vlan_info_left; + guint8 status; + guint8 vlan_name_len; + guint8 type; + int length; + proto_tree *tlv_tree; + + vlan_info_len = tvb_get_guint8(tvb, offset); + ti = proto_tree_add_text(tree, tvb, offset, vlan_info_len, + "VLAN Information"); + vlan_info_tree = proto_item_add_subtree(ti, ett_vtp_vlan_info); + vlan_info_left = vlan_info_len; + + proto_tree_add_uint(vlan_info_tree, hf_vtp_vlan_info_len, tvb, offset, 1, + vlan_info_len); + offset += 1; + vlan_info_left -= 1; + + if (vlan_info_left < 1) + return -1; + status = tvb_get_guint8(tvb, offset); + ti = proto_tree_add_text(vlan_info_tree, tvb, offset, 1, + "Status: 0x%02x%s", status, + (status & VLAN_SUSPENDED) ? "(VLAN suspended)" : ""); + status_tree = proto_item_add_subtree(ti, ett_vtp_vlan_status); + proto_tree_add_boolean(status_tree, hf_vtp_vlan_status_vlan_susp, tvb, offset, 1, + status); + offset += 1; + vlan_info_left -= 1; + + if (vlan_info_left < 1) + return -1; + proto_tree_add_item(vlan_info_tree, hf_vtp_vlan_type, tvb, offset, 1, + FALSE); + offset += 1; + vlan_info_left -= 1; + + if (vlan_info_left < 1) + return -1; + vlan_name_len = tvb_get_guint8(tvb, offset); + proto_tree_add_uint(vlan_info_tree, hf_vtp_vlan_name_len, tvb, offset, 1, + vlan_name_len); + offset += 1; + vlan_info_left -= 1; + + if (vlan_info_left < 2) + return -1; + proto_tree_add_item(vlan_info_tree, hf_vtp_isl_vlan_id, tvb, offset, 2, + FALSE); + offset += 2; + vlan_info_left -= 2; + + if (vlan_info_left < 2) + return -1; + proto_tree_add_item(vlan_info_tree, hf_vtp_mtu_size, tvb, offset, 2, + FALSE); + offset += 2; + vlan_info_left -= 2; + + if (vlan_info_left < 4) + return -1; + proto_tree_add_item(vlan_info_tree, hf_vtp_802_10_index, tvb, offset, 4, + FALSE); + offset += 4; + vlan_info_left -= 4; + + /* VLAN name length appears to be rounded up to a multiple of 4. */ + vlan_name_len = 4*((vlan_name_len + 3)/4); + if (vlan_info_left < vlan_name_len) + return -1; + proto_tree_add_item(vlan_info_tree, hf_vtp_vlan_name, tvb, offset, + vlan_name_len, FALSE); + offset += vlan_name_len; + vlan_info_left -= vlan_name_len; + + while (vlan_info_left > 0) { + type = tvb_get_guint8(tvb, offset + 0); + length = tvb_get_guint8(tvb, offset + 1); + + ti = proto_tree_add_text(vlan_info_tree, tvb, offset, + 2 + length*2, "%s", + val_to_str(type, vlan_tlv_type_vals, + "Unknown TLV type: 0x%02x")); + tlv_tree = proto_item_add_subtree(ti, ett_vtp_tlv); + proto_tree_add_uint(tlv_tree, hf_vtp_vlan_tlvtype, tvb, offset, + 1, type); + proto_tree_add_uint(tlv_tree, hf_vtp_vlan_tlvlength, tvb, offset+1, + 1, length); + offset += 2; + vlan_info_left -= 2; + if (length > 0) { + dissect_vlan_info_tlv(tvb, offset, length*2, tlv_tree, + ti, type); + } + offset += length*2; + vlan_info_left -= length*2; + } + + return vlan_info_len; +} + +static const value_string stp_type_vals[] = { + { 1, "SRT" }, + { 2, "SRB" }, + { 3, "Auto" }, + { 0, NULL }, +}; + +static const value_string pruning_vals[] = { + { 1, "Enabled" }, + { 2, "Disabled" }, + { 0, NULL }, +}; + +static const value_string bridge_type_vals[] = { + { 1, "SRT" }, + { 2, "SRB" }, + { 0, NULL }, +}; + +static const value_string backup_crf_mode_vals[] = { + { 1, "TrCRF is configured as a backup" }, + { 2, "TrCRF is not configured as a backup" }, + { 0, NULL }, +}; + +static void +dissect_vlan_info_tlv(tvbuff_t *tvb, int offset, int length, + proto_tree *tree, proto_item *ti, guint8 type) +{ + switch (type) { + + case SR_RING_NUM: + if (length == 2) { + proto_item_set_text(ti, + "Source-Routing Ring Number: 0x%04x", + tvb_get_ntohs(tvb, offset)); + proto_tree_add_text(tree, tvb, offset, 2, + "Source-Routing Ring Number: 0x%04x", + tvb_get_ntohs(tvb, offset)); + } else { + proto_item_set_text(ti, + "Source-Routing Ring Number: Bad length %u", + length); + proto_tree_add_text(tree, tvb, offset, length, + "Source-Routing Ring Number: Bad length %u", + length); + } + break; + + case SR_BRIDGE_NUM: + if (length == 2) { + proto_item_set_text(ti, + "Source-Routing Bridge Number: 0x%04x", + tvb_get_ntohs(tvb, offset)); + proto_tree_add_text(tree, tvb, offset, 2, + "Source-Routing Bridge Number: 0x%04x", + tvb_get_ntohs(tvb, offset)); + } else { + proto_item_set_text(ti, + "Source-Routing Bridge Number: Bad length %u", + length); + proto_tree_add_text(tree, tvb, offset, length, + "Source-Routing Bridge Number: Bad length %u", + length); + } + break; + + case STP_TYPE: + if (length == 2) { + proto_item_set_text(ti, + "Spanning-Tree Protocol Type: %s", + val_to_str(tvb_get_ntohs(tvb, offset), stp_type_vals, + "Unknown (0x%04x)")); + proto_tree_add_text(tree, tvb, offset, 2, + "Spanning-Tree Protocol Type: %s", + val_to_str(tvb_get_ntohs(tvb, offset), stp_type_vals, + "Unknown (0x%04x)")); + } else { + proto_item_set_text(ti, + "Spanning-Tree Protocol Type: Bad length %u", + length); + proto_tree_add_text(tree, tvb, offset, length, + "Spanning-Tree Protocol Type: Bad length %u", + length); + } + break; + + case PARENT_VLAN: + if (length == 2) { + proto_item_set_text(ti, + "Parent VLAN: 0x%04x", + tvb_get_ntohs(tvb, offset)); + proto_tree_add_text(tree, tvb, offset, 2, + "Parent VLAN: 0x%04x", + tvb_get_ntohs(tvb, offset)); + } else { + proto_item_set_text(ti, + "Parent VLAN: Bad length %u", + length); + proto_tree_add_text(tree, tvb, offset, length, + "Parent VLAN: Bad length %u", + length); + } + break; + + case TR_BRIDGED_VLANS: + if (length == 2) { + proto_item_set_text(ti, + "Translationally Bridged VLANs: 0x%04x", + tvb_get_ntohs(tvb, offset)); + proto_tree_add_text(tree, tvb, offset, 2, + "Translationally Bridged VLANs: 0x%04x", + tvb_get_ntohs(tvb, offset)); + } else { + proto_item_set_text(ti, + "Translationally Bridged VLANs: Bad length %u", + length); + proto_tree_add_text(tree, tvb, offset, length, + "Translationally Bridged VLANs: Bad length %u", + length); + } + break; + + case PRUNING: + if (length == 2) { + proto_item_set_text(ti, + "Pruning: %s", + val_to_str(tvb_get_ntohs(tvb, offset), pruning_vals, + "Unknown (0x%04x)")); + proto_tree_add_text(tree, tvb, offset, 2, + "Pruning: %s", + val_to_str(tvb_get_ntohs(tvb, offset), pruning_vals, + "Unknown (0x%04x)")); + } else { + proto_item_set_text(ti, + "Pruning: Bad length %u", + length); + proto_tree_add_text(tree, tvb, offset, length, + "Pruning: Bad length %u", + length); + } + break; + + case BRIDGE_TYPE: + if (length == 2) { + proto_item_set_text(ti, + "Bridge Type: %s", + val_to_str(tvb_get_ntohs(tvb, offset), bridge_type_vals, + "Unknown (0x%04x)")); + proto_tree_add_text(tree, tvb, offset, 2, + "Bridge Type: %s", + val_to_str(tvb_get_ntohs(tvb, offset), bridge_type_vals, + "Unknown (0x%04x)")); + } else { + proto_item_set_text(ti, + "Bridge Type: Bad length %u", + length); + proto_tree_add_text(tree, tvb, offset, length, + "Bridge Type: Bad length %u", + length); + } + break; + + case MAX_ARE_HOP_CNT: + if (length == 2) { + proto_item_set_text(ti, + "Max ARE Hop Count: %u", + tvb_get_ntohs(tvb, offset)); + proto_tree_add_text(tree, tvb, offset, 2, + "Max ARE Hop Count: %u", + tvb_get_ntohs(tvb, offset)); + } else { + proto_item_set_text(ti, + "Max ARE Hop Count: Bad length %u", + length); + proto_tree_add_text(tree, tvb, offset, length, + "Max ARE Hop Count: Bad length %u", + length); + } + break; + + case MAX_STE_HOP_CNT: + if (length == 2) { + proto_item_set_text(ti, + "Max STE Hop Count: %u", + tvb_get_ntohs(tvb, offset)); + proto_tree_add_text(tree, tvb, offset, 2, + "Max STE Hop Count: %u", + tvb_get_ntohs(tvb, offset)); + } else { + proto_item_set_text(ti, + "Max STE Hop Count: Bad length %u", + length); + proto_tree_add_text(tree, tvb, offset, length, + "Max STE Hop Count: Bad length %u", + length); + } + break; + + case BACKUP_CRF_MODE: + if (length == 2) { + proto_item_set_text(ti, + "Backup CRF Mode: %s", + val_to_str(tvb_get_ntohs(tvb, offset), backup_crf_mode_vals, + "Unknown (0x%04x)")); + proto_tree_add_text(tree, tvb, offset, 2, + "Backup CRF Mode: %s", + val_to_str(tvb_get_ntohs(tvb, offset), backup_crf_mode_vals, + "Unknown (0x%04x)")); + } else { + proto_item_set_text(ti, + "Backup CRF Mode: Bad length %u", + length); + proto_tree_add_text(tree, tvb, offset, length, + "Backup CRF Mode: Bad length %u", + length); + } + break; + + default: + proto_tree_add_text(tree, tvb, offset, length, "Data"); + break; + } +} + +void +proto_register_vtp(void) +{ + static hf_register_info hf[] = { + { &hf_vtp_version, + { "Version", "vtp.version", FT_UINT8, BASE_HEX, NULL, 0x0, + "", HFILL }}, + + { &hf_vtp_code, + { "Code", "vtp.code", FT_UINT8, BASE_HEX, VALS(type_vals), 0x0, + "", HFILL }}, + + { &hf_vtp_followers, + { "Followers", "vtp.followers", FT_UINT8, BASE_DEC, NULL, 0x0, + "Number of following Subset-Advert messages", HFILL }}, + + { &hf_vtp_md_len, + { "Management Domain Length", "vtp.md_len", FT_UINT8, BASE_DEC, NULL, 0x0, + "Length of management domain string", HFILL }}, + + { &hf_vtp_md, + { "Management Domain", "vtp.md", FT_STRING, BASE_DEC, NULL, 0, + "Management domain", HFILL }}, + + { &hf_vtp_conf_rev_num, + { "Configuration Revision Number", "vtp.conf_rev_num", FT_UINT32, BASE_DEC, NULL, 0x0, + "Revision number of the configuration information", HFILL }}, + + { &hf_vtp_upd_id, + { "Updater Identity", "vtp.upd_id", FT_IPv4, BASE_NONE, NULL, 0x0, + "IP address of the updater", HFILL }}, + + { &hf_vtp_upd_ts, + { "Update Timestamp", "vtp.upd_ts", FT_STRING, BASE_DEC, NULL, 0, + "Time stamp of the current configuration revision", HFILL }}, + + { &hf_vtp_md5_digest, + { "MD5 Digest", "vtp.md5_digest", FT_BYTES, BASE_HEX, NULL, 0x0, + "", HFILL }}, + + { &hf_vtp_seq_num, + { "Sequence Number", "vtp.seq_num", FT_UINT8, BASE_DEC, NULL, 0x0, + "Order of this frame in the sequence of Subset-Advert frames", HFILL }}, + + { &hf_vtp_start_value, + { "Start Value", "vtp.start_value", FT_UINT16, BASE_HEX, NULL, 0x0, + "Virtual LAN ID of first VLAN for which information is requested", HFILL }}, + + { &hf_vtp_vlan_info_len, + { "VLAN Information Length", "vtp.vlan_info.len", FT_UINT8, BASE_DEC, NULL, 0x0, + "Length of the VLAN information field", HFILL }}, + + { &hf_vtp_vlan_status_vlan_susp, + { "VLAN suspended", "vtp.vlan_info.status.vlan_susp", FT_BOOLEAN, 8, NULL, VLAN_SUSPENDED, + "VLAN suspended", HFILL }}, + + { &hf_vtp_vlan_type, + { "VLAN Type", "vtp.vlan_info.vlan_type", FT_UINT8, BASE_HEX, VALS(vlan_type_vals), 0x0, + "Type of VLAN", HFILL }}, + + { &hf_vtp_vlan_name_len, + { "VLAN Name Length", "vtp.vlan_info.vlan_name_len", FT_UINT8, BASE_DEC, NULL, 0x0, + "Length of VLAN name string", HFILL }}, + + { &hf_vtp_isl_vlan_id, + { "ISL VLAN ID", "vtp.vlan_info.isl_vlan_id", FT_UINT16, BASE_HEX, NULL, 0x0, + "ID of this VLAN on ISL trunks", HFILL }}, + + { &hf_vtp_mtu_size, + { "MTU Size", "vtp.vlan_info.mtu_size", FT_UINT16, BASE_DEC, NULL, 0x0, + "MTU for this VLAN", HFILL }}, + + { &hf_vtp_802_10_index, + { "802.10 Index", "vtp.vlan_info.802_10_index", FT_UINT32, BASE_HEX, NULL, 0x0, + "IEEE 802.10 security association identifier for this VLAN", HFILL }}, + + { &hf_vtp_vlan_name, + { "VLAN Name", "vtp.vlan_info.vlan_name", FT_STRING, BASE_DEC, NULL, 0, + "VLAN name", HFILL }}, + + { &hf_vtp_vlan_tlvtype, + { "Type", "vtp.vlan_info.tlv_type", FT_UINT8, BASE_HEX, VALS(vlan_tlv_type_vals), 0x0, + "", HFILL }}, + + { &hf_vtp_vlan_tlvlength, + { "Length", "vtp.vlan_info.tlv_len", FT_UINT8, BASE_DEC, NULL, 0x0, + "", HFILL }}, + }; + static gint *ett[] = { + &ett_vtp, + &ett_vtp_vlan_info, + &ett_vtp_vlan_status, + &ett_vtp_tlv, + }; + + proto_vtp = proto_register_protocol("Virtual Trunking Protocol", + "VTP", "vtp"); + proto_register_field_array(proto_vtp, hf, array_length(hf)); + proto_register_subtree_array(ett, array_length(ett)); +} + +void +proto_reg_handoff_vtp(void) +{ + dissector_handle_t vtp_handle; + + vtp_handle = create_dissector_handle(dissect_vtp, proto_vtp); + dissector_add("llc.cisco_pid", 0x2003, vtp_handle); +} -- cgit v1.2.3