Beginnings of a EDP, ESRP and EAPS dissector
svn path=/trunk/; revision=15299
This commit is contained in:
Jörg Mayer
parent
03c8023311
commit
86b6922604
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@ -257,6 +257,7 @@ DISSECTOR_SRC = \
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packet-etheric.c \
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packet-etherip.c \
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packet-ethertype.c \
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packet-extreme.c \
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packet-fc.c \
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packet-fcct.c \
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packet-fcdns.c \
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@ -0,0 +1,540 @@
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/* packet-extreme.c
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* Routines for the disassembly of Extreme Networks specific
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* protocols (EDP/ESRP)
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*
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* $Id$
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*
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* Copyright 2005 Joerg Mayer (see AUTJORS file)
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@ethereal.com>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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/* Specs:
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EAPS v1 is specified in rfc 3619
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <string.h>
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#include <glib.h>
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#include <epan/packet.h>
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#include "packet-llc.h"
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#include "oui.h"
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static int hf_llc_extreme_pid = -1;
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static int proto_edp = -1;
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/* EDP header */
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static int hf_edp_version = -1;
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static int hf_edp_reserved = -1;
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static int hf_edp_length = -1;
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static int hf_edp_chksum = -1;
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static int hf_edp_seqno = -1;
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static int hf_edp_midtype = -1;
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static int hf_edp_midmac = -1;
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/* TLV header */
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static int hf_edp_tlv_marker = -1;
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static int hf_edp_tlv_type = -1;
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static int hf_edp_tlv_length = -1;
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/* Info element */
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static int hf_edp_info_slot = -1;
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static int hf_edp_info_port = -1;
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static int hf_edp_info_vchassid = -1;
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static int hf_edp_info_reserved = -1;
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static int hf_edp_info_version = -1;
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static int hf_edp_info_vchassconn = -1;
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/* Vlan element */
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static int hf_edp_vlan_flags = -1;
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static int hf_edp_vlan_reserved1 = -1;
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static int hf_edp_vlan_id = -1;
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static int hf_edp_vlan_reserved2 = -1;
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static int hf_edp_vlan_ip = -1;
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static int hf_edp_vlan_name = -1;
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/* ESRP element */
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static int hf_edp_esrp_proto = -1;
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static int hf_edp_esrp_group = -1;
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static int hf_edp_esrp_prio = -1;
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static int hf_edp_esrp_state = -1;
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static int hf_edp_esrp_ports = -1;
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static int hf_edp_esrp_virtip = -1;
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static int hf_edp_esrp_sysmac = -1;
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static int hf_edp_esrp_hello = -1;
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static int hf_edp_esrp_reserved = -1;
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static gint ett_edp = -1;
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static gint ett_edp_tlv = -1;
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#define PROTO_SHORT_NAME "EDP"
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#define PROTO_LONG_NAME "Extreme Discovery Protocol"
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static const value_string extreme_pid_vals[] = {
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{ 0x00bb, "EDP" },
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{ 0, NULL }
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};
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static const value_string esrp_proto_vals[] = {
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{ 0, "IP" },
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{ 1, "IPX" },
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{ 2, "L2" },
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{ 0, NULL }
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};
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static const value_string esrp_state_vals[] = {
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{ 0, "??" },
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{ 1, "Master" },
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{ 2, "Slave" },
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{ 0, NULL }
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};
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typedef enum {
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EDP_TYPE_NULL = 0,
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EDP_TYPE_DISPLAY,
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EDP_TYPE_INFO,
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EDP_TYPE_VLAN = 5,
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EDP_TYPE_ESRP = 8,
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EDP_TYPE_EAPS = 0xb
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} edp_type_t;
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static const value_string edp_type_vals[] = {
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{ EDP_TYPE_NULL, "Null"},
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{ EDP_TYPE_DISPLAY, "Display"},
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{ EDP_TYPE_INFO, "Basic system info"},
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{ EDP_TYPE_VLAN, "Vlan info"},
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{ EDP_TYPE_ESRP, "ESRP"},
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{ EDP_TYPE_EAPS, "EAPS"},
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{ 0, NULL }
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};
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static void
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dissect_display_tlv(tvbuff_t *tvb, int offset, int length, proto_tree *tree)
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{
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/* FIXME: todo */
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proto_tree_add_text(tree, tvb, offset, length, "2do: data");
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}
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static void
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dissect_info_tlv(tvbuff_t *tvb, int offset, int length _U_, proto_tree *tree)
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{
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proto_tree_add_uint(tree, hf_edp_info_slot, tvb, offset, 2,
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tvb_get_ntohs(tvb, offset));
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offset += 2;
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proto_tree_add_uint(tree, hf_edp_info_port, tvb, offset, 2,
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tvb_get_ntohs(tvb, offset));
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offset += 2;
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proto_tree_add_uint(tree, hf_edp_info_vchassid, tvb, offset, 2,
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tvb_get_ntohs(tvb, offset));
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offset += 2;
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proto_tree_add_bytes(tree, hf_edp_info_reserved, tvb, offset, 6,
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tvb_get_ptr(tvb, offset, 6));
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offset += 6;
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/* FIXME: Split into major.minor.patch.00 */
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proto_tree_add_uint(tree, hf_edp_info_version, tvb, offset, 4,
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tvb_get_ntohl(tvb, offset));
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offset += 4;
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proto_tree_add_bytes(tree, hf_edp_info_vchassconn, tvb, offset, 16,
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tvb_get_ptr(tvb, offset, 16));
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offset += 16;
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}
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static void
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dissect_vlan_tlv(tvbuff_t *tvb, int offset, int length, proto_tree *tree)
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{
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/* FIXME: properly decode the bit(s):
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bit 8 = 1 -> has ip interface */
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proto_tree_add_uint(tree, hf_edp_vlan_flags, tvb, offset, 1,
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tvb_get_guint8(tvb, offset));
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offset += 1;
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proto_tree_add_bytes(tree, hf_edp_vlan_reserved1, tvb, offset, 3,
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tvb_get_ptr(tvb, offset, 3));
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offset += 3;
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proto_tree_add_uint(tree, hf_edp_vlan_id, tvb, offset, 2,
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tvb_get_ntohs(tvb, offset));
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offset += 2;
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proto_tree_add_bytes(tree, hf_edp_vlan_reserved2, tvb, offset, 2,
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tvb_get_ptr(tvb, offset, 2));
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offset += 2;
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proto_tree_add_ipv4(tree, hf_edp_vlan_ip, tvb, offset, 4,
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tvb_get_ntohl(tvb, offset));
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offset += 4;
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proto_tree_add_string(tree, hf_edp_vlan_name, tvb, offset, length - 12,
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tvb_format_stringzpad(tvb, offset, length - 12));
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offset += (length - 12);
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}
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static void
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dissect_esrp_tlv(tvbuff_t *tvb, int offset, int length _U_, proto_tree *tree)
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{
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/* FIXME: Set COLPROTO */
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proto_tree_add_uint(tree, hf_edp_esrp_proto, tvb, offset, 1,
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tvb_get_guint8(tvb, offset));
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offset += 1;
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proto_tree_add_uint(tree, hf_edp_esrp_group, tvb, offset, 1,
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tvb_get_guint8(tvb, offset));
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offset += 1;
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proto_tree_add_uint(tree, hf_edp_esrp_prio, tvb, offset, 2,
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tvb_get_ntohs(tvb, offset));
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offset += 2;
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proto_tree_add_uint(tree, hf_edp_esrp_state, tvb, offset, 2,
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tvb_get_ntohs(tvb, offset));
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offset += 2;
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proto_tree_add_uint(tree, hf_edp_esrp_ports, tvb, offset, 2,
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tvb_get_ntohs(tvb, offset));
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offset += 2;
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proto_tree_add_ipv4(tree, hf_edp_esrp_virtip, tvb, offset, 4,
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tvb_get_ntohl(tvb, offset));
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offset += 4;
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proto_tree_add_ether(tree, hf_edp_esrp_sysmac, tvb, offset, 6,
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tvb_get_ptr(tvb, offset, 6));
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offset += 6;
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proto_tree_add_uint(tree, hf_edp_esrp_hello, tvb, offset, 2,
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tvb_get_ntohs(tvb, offset));
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offset += 2;
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proto_tree_add_uint(tree, hf_edp_esrp_reserved, tvb, offset, 2,
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tvb_get_ntohs(tvb, offset));
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offset += 2;
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}
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static void
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dissect_eaps_tlv(tvbuff_t *tvb, int offset, int length, proto_tree *tree)
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{
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/* FIXME: todo */
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proto_tree_add_text(tree, tvb, offset, length, "2do: data");
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}
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static void
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dissect_edp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
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{
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proto_item *ti;
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proto_item *tlvi;
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proto_tree *tlv_tree;
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proto_tree *edp_tree = NULL;
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guint32 offset = 0;
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guint last = 0;
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guint8 tlv_marker;
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guint8 tlv_type;
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guint16 tlv_length;
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guint16 data_length;
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guint16 length_remaining;
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if (check_col(pinfo->cinfo, COL_PROTOCOL))
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col_set_str(pinfo->cinfo, COL_PROTOCOL, PROTO_SHORT_NAME);
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if (check_col(pinfo->cinfo, COL_INFO))
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col_set_str(pinfo->cinfo, COL_INFO, PROTO_LONG_NAME);
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if (tree) {
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length_remaining = tvb_reported_length_remaining(tvb, offset);
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ti = proto_tree_add_item(tree, proto_edp, tvb, offset, -1,
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FALSE);
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edp_tree = proto_item_add_subtree(ti, ett_edp);
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proto_tree_add_item(edp_tree, hf_edp_version, tvb, offset, 1,
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TRUE);
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offset += 1;
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proto_tree_add_item(edp_tree, hf_edp_reserved, tvb, offset, 1,
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TRUE);
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offset += 1;
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data_length = tvb_get_ntohs(tvb, offset);
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proto_tree_add_uint(edp_tree, hf_edp_length, tvb, offset, 2,
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data_length);
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offset += 2;
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proto_tree_add_uint(edp_tree, hf_edp_chksum, tvb, offset, 2,
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tvb_get_ntohs(tvb, offset));
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offset += 2;
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proto_tree_add_uint(edp_tree, hf_edp_seqno, tvb, offset, 2,
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tvb_get_ntohs(tvb, offset));
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offset += 2;
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/* Machine ID is 8 bytes, if it starts with 0000, the remaining
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6 bytes are a MAC */
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proto_tree_add_uint(edp_tree, hf_edp_midtype, tvb, offset, 2,
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tvb_get_ntohs(tvb, offset));
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offset += 2;
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proto_tree_add_ether(edp_tree, hf_edp_midmac, tvb, offset, 6,
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tvb_get_ptr(tvb, offset, 6));
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offset += 6;
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/* Decode the individual TLVs */
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while (offset < data_length && last == 0) {
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if (data_length - offset < 4) {
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tlvi = proto_tree_add_text(edp_tree, tvb, offset, 4,
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"Too few bytes left for TLV: %u (< 4)",
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data_length - offset);
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offset += 4;
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break;
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}
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tlv_marker = tvb_get_guint8(tvb, offset);
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tlv_type = tvb_get_guint8(tvb, offset + 1);
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tlv_length = tvb_get_ntohs(tvb, offset + 2);
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if ((tlv_length < 4) || (tlv_length > (data_length - offset))) {
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tlvi = proto_tree_add_text(edp_tree, tvb, offset, 0,
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"TLV with invalid length: %u", tlv_length);
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last = 1;
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break;
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}
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tlvi = proto_tree_add_text(edp_tree, tvb, offset,
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tlv_length, "Type: %s, length: %d bytes",
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val_to_str(tlv_type, edp_type_vals, "Unknown (0x%02x)"),
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tlv_length);
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tlv_tree = proto_item_add_subtree(tlvi, ett_edp_tlv);
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proto_tree_add_uint(tlv_tree, hf_edp_tlv_marker, tvb, offset, 1,
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tlv_marker);
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offset += 1;
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/* FIXME: Set COLINFO */
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proto_tree_add_uint(tlv_tree, hf_edp_tlv_type, tvb, offset, 1,
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tlv_type);
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offset += 1;
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proto_tree_add_uint(tlv_tree, hf_edp_tlv_length, tvb, offset, 2,
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tlv_length);
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offset += 2;
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switch (tlv_type) {
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case EDP_TYPE_NULL: /* Last TLV */
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last = 1;
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/* FIXME: consistency check: tlv_length == 4 */
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break;
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case EDP_TYPE_DISPLAY: /* MIB II display string */
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dissect_display_tlv(tvb, offset, tlv_length - 4, tlv_tree);
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break;
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case EDP_TYPE_INFO: /* Basic system information */
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dissect_info_tlv(tvb, offset, tlv_length - 4, tlv_tree);
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break;
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case EDP_TYPE_VLAN: /* VLAN info */
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dissect_vlan_tlv(tvb, offset, tlv_length - 4, tlv_tree);
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break;
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case EDP_TYPE_ESRP: /* Extreme Standby Router Protocol */
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dissect_esrp_tlv(tvb, offset, tlv_length - 4, tlv_tree);
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break;
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case EDP_TYPE_EAPS: /* Ethernet Automatic Protection Swtiching */
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dissect_eaps_tlv(tvb, offset, tlv_length - 4, tlv_tree);
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break;
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default:
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proto_tree_add_text(tlv_tree, tvb, offset,
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tlv_length - 4, "Unknown data");
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break;
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}
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offset += (tlv_length - 4);
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}
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}
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}
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void
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proto_register_edp(void)
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{
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static hf_register_info hf[] = {
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/* EDP header */
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{ &hf_edp_version,
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{ "Version", "edp.version", FT_UINT8, BASE_DEC, NULL,
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0x0, "", HFILL }},
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{ &hf_edp_reserved,
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{ "Reserved", "edp.reserved", FT_UINT8, BASE_DEC, NULL,
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0x0, "", HFILL }},
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{ &hf_edp_length,
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{ "Data length", "edp.length", FT_UINT16, BASE_DEC, NULL,
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0x0, "", HFILL }},
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{ &hf_edp_chksum,
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{ "Checksum", "edp.checksum", FT_UINT16, BASE_HEX, NULL,
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0x0, "", HFILL }},
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{ &hf_edp_seqno,
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{ "Sequence number", "edp.seqno", FT_UINT16, BASE_DEC, NULL,
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0x0, "", HFILL }},
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{ &hf_edp_midtype,
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{ "Machine ID type", "edp.midtype", FT_UINT16, BASE_DEC, NULL,
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0x0, "", HFILL }},
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{ &hf_edp_midmac,
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{ "Machine MAC", "edp.midmac", FT_ETHER, BASE_NONE, NULL,
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0x0, "", HFILL }},
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/* TLV header */
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{ &hf_edp_tlv_marker,
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{ "Marker", "edp.tlv.marker", FT_UINT8, BASE_HEX, NULL,
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0x0, "", HFILL }},
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{ &hf_edp_tlv_type,
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{ "TLV type", "edp.tlv.type", FT_UINT8, BASE_DEC, VALS(edp_type_vals),
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0x0, "", HFILL }},
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{ &hf_edp_tlv_length,
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{ "TLV length", "edp.tlv.length", FT_UINT16, BASE_DEC, NULL,
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0x0, "", HFILL }},
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/* Info element */
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{ &hf_edp_info_slot,
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{ "Slot", "edp.info.slot", FT_UINT16, BASE_DEC, NULL,
|
||||
0x0, "Originating slot #", HFILL }},
|
||||
|
||||
{ &hf_edp_info_port,
|
||||
{ "Port", "edp.info.port", FT_UINT16, BASE_DEC, NULL,
|
||||
0x0, "Originating port #", HFILL }},
|
||||
|
||||
{ &hf_edp_info_vchassid,
|
||||
{ "Virt chassis", "edp.info.vchassid", FT_UINT16, BASE_DEC, NULL,
|
||||
0x0, "Virtual chassis ID", HFILL }},
|
||||
|
||||
{ &hf_edp_info_reserved,
|
||||
{ "Reserved", "edp.info.reserved", FT_BYTES, BASE_NONE, NULL,
|
||||
0x0, "", HFILL }},
|
||||
|
||||
/* FIXME: Split into major.minor.patch.00 */
|
||||
{ &hf_edp_info_version,
|
||||
{ "Version", "edp.info.version", FT_UINT32, BASE_HEX, NULL,
|
||||
0x0, "Software version", HFILL }},
|
||||
|
||||
{ &hf_edp_info_vchassconn,
|
||||
{ "Connections", "edp.info.vchassconn", FT_BYTES, BASE_NONE, NULL,
|
||||
0x0, "Virtual chassis connections", HFILL }},
|
||||
|
||||
/* Vlan element */
|
||||
/* FIXME: properly decode the bit(s) */
|
||||
{ &hf_edp_vlan_flags,
|
||||
{ "Flags", "edp.vlan.flags", FT_UINT8, BASE_DEC, NULL,
|
||||
0x0, "", HFILL }},
|
||||
|
||||
{ &hf_edp_vlan_reserved1,
|
||||
{ "Reserved1", "edp.vlan.reserved1", FT_BYTES, BASE_NONE, NULL,
|
||||
0x0, "", HFILL }},
|
||||
|
||||
{ &hf_edp_vlan_id,
|
||||
{ "Vlan ID", "edp.vlan.id", FT_UINT16, BASE_DEC, NULL,
|
||||
0x0, "", HFILL }},
|
||||
|
||||
{ &hf_edp_vlan_reserved2,
|
||||
{ "Reserved2", "edp.vlan.reserved2", FT_BYTES, BASE_NONE, NULL,
|
||||
0x0, "", HFILL }},
|
||||
|
||||
{ &hf_edp_vlan_ip,
|
||||
{ "IP addr", "edp.vlan.ip", FT_IPv4, BASE_NONE, NULL,
|
||||
0x0, "VLAN IP address", HFILL }},
|
||||
|
||||
{ &hf_edp_vlan_name,
|
||||
{ "Name", "edp.vlan.name", FT_STRING, BASE_NONE, NULL,
|
||||
0x0, "VLAN name", HFILL }},
|
||||
|
||||
/* ESRP element */
|
||||
{ &hf_edp_esrp_proto,
|
||||
{ "Protocol", "edp.esrp.proto", FT_UINT8, BASE_DEC, VALS(esrp_proto_vals),
|
||||
0x0, "", HFILL }},
|
||||
|
||||
{ &hf_edp_esrp_group,
|
||||
{ "Group", "edp.esrp.group", FT_UINT8, BASE_DEC, NULL,
|
||||
0x0, "", HFILL }},
|
||||
|
||||
{ &hf_edp_esrp_prio,
|
||||
{ "Prio", "edp.esrp.prio", FT_UINT16, BASE_DEC, NULL,
|
||||
0x0, "", HFILL }},
|
||||
|
||||
{ &hf_edp_esrp_state,
|
||||
{ "State", "edp.esrp.state", FT_UINT16, BASE_DEC, VALS(esrp_state_vals),
|
||||
0x0, "", HFILL }},
|
||||
|
||||
{ &hf_edp_esrp_ports,
|
||||
{ "Ports", "edp.esrp.ports", FT_UINT16, BASE_DEC, NULL,
|
||||
0x0, "Number of active ports", HFILL }},
|
||||
|
||||
{ &hf_edp_esrp_virtip,
|
||||
{ "VirtIP", "edp.esrp.virtip", FT_IPv4, BASE_NONE, NULL,
|
||||
0x0, "Virtual IP address", HFILL }},
|
||||
|
||||
{ &hf_edp_esrp_sysmac,
|
||||
{ "Sys MAC", "edp.esrp.sysmac", FT_ETHER, BASE_NONE, NULL,
|
||||
0x0, "System MAC address", HFILL }},
|
||||
|
||||
{ &hf_edp_esrp_hello,
|
||||
{ "Hello", "edp.esrp.hello", FT_UINT16, BASE_DEC, NULL,
|
||||
0x0, "Hello timer", HFILL }},
|
||||
|
||||
{ &hf_edp_esrp_reserved,
|
||||
{ "Reserved", "edp.esrp.reserved", FT_UINT16, BASE_DEC, NULL,
|
||||
0x0, "Reserved", HFILL }},
|
||||
|
||||
};
|
||||
static gint *ett[] = {
|
||||
&ett_edp,
|
||||
&ett_edp_tlv,
|
||||
};
|
||||
|
||||
proto_edp = proto_register_protocol(PROTO_LONG_NAME,
|
||||
PROTO_SHORT_NAME, "edp");
|
||||
proto_register_field_array(proto_edp, hf, array_length(hf));
|
||||
proto_register_subtree_array(ett, array_length(ett));
|
||||
}
|
||||
|
||||
void
|
||||
proto_reg_handoff_edp(void)
|
||||
{
|
||||
dissector_handle_t edp_handle;
|
||||
|
||||
edp_handle = create_dissector_handle(dissect_edp, proto_edp);
|
||||
dissector_add("llc.extreme_pid", 0x00bb, edp_handle);
|
||||
}
|
||||
|
||||
void
|
||||
proto_register_extreme_oui(void)
|
||||
{
|
||||
static hf_register_info hf = {
|
||||
&hf_llc_extreme_pid,
|
||||
{ "PID", "llc.extreme_pid", FT_UINT16, BASE_HEX,
|
||||
VALS(extreme_pid_vals), 0x0, "", HFILL },
|
||||
};
|
||||
|
||||
llc_add_oui(OUI_EXTREME, "llc.extreme_pid", "Extreme OUI PID", &hf);
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue