/* packet-extreme.c * Routines for the disassembly of Extreme Networks specific * protocols (EDP/ESRP/EAPS(including ESL)/ELSM) * * Copyright 2005 Joerg Mayer (see AUTHORS file) * * Wireshark - 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ /* TODO: - General EAPS v2 is not supported (no spec) Some stuff in the EDP Info field (no spec) - Things seen in traces Flags in the EDP Vlan field (value 0x01) - TLV type 0x0e (ESL) shared link managemnt TLV type 0x15 (XOS only?) EAPS type 0x10 (ESL?) ESRP state 0x03 Specs: EAPS v1 is specified in RFC3619 The following information is taken from the Extreme knowledge base (login required). Search for ESRP. Note: The information seems to be incorrect in at least one place (position of edp.vlan.id). ================================ snip ================================ ESRP Packet Format: ------------------- 0 1 0 1 2 3 4 5 6 7 8 9 A B C D E F 0 1 2 3 4 5 6 7 8 9 A B C D E F +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 0000 | SOURCE MAC ADDRESS | +-------------------------------+-------------------------------+ 0004 | SOURCE MAC ADDRESS (CONT) | DEST MAC ADDRESS | +-------------------------------+-------------------------------+ 0008 | DEST MAC ADDRESS (CONT) | +-------------------------------+---------------+---------------+ 000C | LENGTH | DSAP = AA | SSAP = AA | +---------------+---------------+---------------+---------------+ 0010 | LLC TYPE = UI | UID = 00E02B | +---------------+---------------+---------------+---------------+ 0014 | SNAP TYPE = 00BB | EDP VERSION | RESERVED | +-------------------------------+---------------+---------------+ 0018 | LENGTH | CHECKSUM | +-------------------------------+-------------------------------+ 001C | SEQUENCE NUMBER | MACHINE ID | +-------------------------------+-------------------------------+ 0020 | MACHINE ID (CONT.) | +-------------------------------+---------------+---------------+ 0024 | MACHINE ID (CONT.) | MARKER=99(EDP)| TYPE=08 (ESRP)| +-------------------------------+---------------+---------------+ 0028 | LENGTH = 001C |0=IP 1=IPX 2=L2| GROUP = 0 | +-------------------------------+-------------------------------+ 002C | PRIORITY | STATE: 0=?? 1=MSTR 2=SLAVE | +-------------------------------+-------------------------------+ 0030 | NUMBER OF ACTIVE PORTS | VIRTUAL IP ADDRESS | +-------------------------------+-------------------------------+ 0034 | VIRTUAL IP ADDRESS (CONT) | SYSTEM MAC ADDRESS | +-------------------------------+-------------------------------+ 0038 | SYSTEM MAC ADDRESS (CONT.) | +-------------------------------+-------------------------------+ 003C | HELLO TIMER | RESERVED | +-------------------------------+-------------------------------+ 0040 ****************************************************************************** EDP is a SNAP encapsulated frame. The top level looks like this: The top level format is like this: [ SNAP header ] [ EDP header] [ TLV 0 ] [ TLV 1 ] ... [ TLV N ] Header format: 1 octet: EDP version 1 octet: reserved 2 octets: length 2 octets: checksum 2 octets: sequence # 8 octets: device id (currently 2 0 octets followed by system mac address) TLV stands for Type, Length, Value. Format of a TLV entry: marker ( 1 octet): Hex 99 type ( 1 octet): The following types are used: Null (used as an end signal): 0 Display (Mib II display string): 1 Info (Basic system information): 2 Vlan Info : 5 ESRP : 8 Length: Length of subsequent data(2 octets) Value: Length octets of data. Format for Info TLV: two octets: originating slot # two octets: originating port # two octets: Virtual Chassis Id (If originating port is connected to a virtual chassis). six octets: reserved four octets: software version 16 octets: Virtual Chassis Id connections Format for Vlan info: octet 0: Flags (bit 8 = 1 means this vlan has an IP interface) octets 1,2,3: reserved. octets 4,5: vlan Id (0 if untagged) octets 6,7: reserved. octets 8 - 11: Vlan IP address. Rest of value: VLAN name. Display string is merely length octets of the MIBII display string. These are the structures you will see most often in EDP frames. ================================ snap ================================ */ #include "config.h" #include #include #include #include #include #include "packet-llc.h" #include void proto_register_edp(void); void proto_reg_handoff_edp(void); static int hf_llc_extreme_pid = -1; static int proto_edp = -1; /* EDP header */ static int hf_edp_version = -1; static int hf_edp_reserved = -1; static int hf_edp_length = -1; static int hf_edp_checksum = -1; static int hf_edp_checksum_status = -1; static int hf_edp_seqno = -1; static int hf_edp_midtype = -1; static int hf_edp_midmac = -1; /* TLV header */ static int hf_edp_tlv_marker = -1; static int hf_edp_tlv_type = -1; static int hf_edp_tlv_length = -1; /* Display string */ static int hf_edp_display = -1; static int hf_edp_display_string = -1; /* Info element */ static int hf_edp_info = -1; static int hf_edp_info_slot = -1; static int hf_edp_info_port = -1; static int hf_edp_info_vchassid = -1; static int hf_edp_info_reserved = -1; static int hf_edp_info_version = -1; static int hf_edp_info_version_major1 = -1; static int hf_edp_info_version_major2 = -1; static int hf_edp_info_version_sustaining = -1; static int hf_edp_info_version_internal = -1; static int hf_edp_info_vchassconn = -1; /* Vlan element */ static int hf_edp_vlan = -1; static int hf_edp_vlan_flags = -1; static int hf_edp_vlan_flags_ip = -1; static int hf_edp_vlan_flags_reserved = -1; static int hf_edp_vlan_flags_unknown = -1; static int hf_edp_vlan_reserved1 = -1; static int hf_edp_vlan_id = -1; static int hf_edp_vlan_reserved2 = -1; static int hf_edp_vlan_ip = -1; static int hf_edp_vlan_name = -1; /* ESRP element */ static int hf_edp_esrp = -1; static int hf_edp_esrp_proto = -1; static int hf_edp_esrp_group = -1; static int hf_edp_esrp_prio = -1; static int hf_edp_esrp_state = -1; static int hf_edp_esrp_ports = -1; static int hf_edp_esrp_virtip = -1; static int hf_edp_esrp_sysmac = -1; static int hf_edp_esrp_hello = -1; static int hf_edp_esrp_reserved = -1; /* EAPS element */ static int hf_edp_eaps = -1; static int hf_edp_eaps_ver = -1; static int hf_edp_eaps_type = -1; static int hf_edp_eaps_ctrlvlanid = -1; static int hf_edp_eaps_reserved0 = -1; static int hf_edp_eaps_sysmac = -1; static int hf_edp_eaps_hello = -1; static int hf_edp_eaps_fail = -1; static int hf_edp_eaps_state = -1; static int hf_edp_eaps_reserved1 = -1; static int hf_edp_eaps_helloseq = -1; static int hf_edp_eaps_reserved2 = -1; /* ESL element */ static int hf_edp_esl = -1; static int hf_edp_esl_ver = -1; static int hf_edp_esl_type = -1; static int hf_edp_esl_ctrlvlanid = -1; static int hf_edp_esl_reserved0 = -1; static int hf_edp_esl_sysmac = -1; static int hf_edp_esl_reserved1 = -1; static int hf_edp_esl_state = -1; static int hf_edp_esl_linkrole = -1; static int hf_edp_esl_linkid1 = -1; static int hf_edp_esl_failed1 = -1; static int hf_edp_esl_failed2 = -1; static int hf_edp_esl_reserved4 = -1; static int hf_edp_esl_linkid2 = -1; static int hf_edp_esl_reserved5 = -1; static int hf_edp_esl_numlinks = -1; static int hf_edp_esl_linklist = -1; static int hf_edp_esl_rest = -1; /* ELSM (Extreme Link Status Monitoring) */ static int hf_edp_elsm = -1; static int hf_edp_elsm_type = -1; static int hf_edp_elsm_subtype = -1; static int hf_edp_elsm_magic = -1; /* ELRP (Extreme Loop Recognition Protocol)*/ static int hf_edp_elrp = -1; static int hf_edp_elrp_unknown = -1; /* Unknown element */ static int hf_edp_unknown = -1; static int hf_edp_unknown_data = -1; /* Null element */ static int hf_edp_null = -1; static expert_field ei_edp_short_tlv = EI_INIT; static expert_field ei_edp_checksum = EI_INIT; static gint ett_edp = -1; static gint ett_edp_tlv_header = -1; static gint ett_edp_display = -1; static gint ett_edp_info = -1; static gint ett_edp_info_version = -1; static gint ett_edp_vlan = -1; static gint ett_edp_vlan_flags = -1; static gint ett_edp_esrp = -1; static gint ett_edp_eaps = -1; static gint ett_edp_esl = -1; static gint ett_edp_elrp = -1; static gint ett_edp_elsm = -1; static gint ett_edp_unknown = -1; static gint ett_edp_null = -1; #define PROTO_SHORT_NAME "EDP" #define PROTO_LONG_NAME "Extreme Discovery Protocol" static const value_string extreme_pid_vals[] = { { 0x00bb, "EDP" }, { 0, NULL } }; static const value_string esrp_proto_vals[] = { { 0, "IP" }, { 1, "IPX" }, { 2, "L2" }, { 0, NULL } }; static const value_string esrp_state_vals[] = { { 0, "??" }, { 1, "Master" }, { 2, "Slave" }, { 0, NULL } }; typedef enum { EDP_TYPE_NULL = 0, EDP_TYPE_DISPLAY, EDP_TYPE_INFO, EDP_TYPE_VLAN = 5, EDP_TYPE_ESRP = 8, EDP_TYPE_EAPS = 0xb, EDP_TYPE_ELRP = 0xd, EDP_TYPE_ESL, EDP_TYPE_ELSM } edp_type_t; static const value_string edp_type_vals[] = { { EDP_TYPE_NULL, "Null"}, { EDP_TYPE_DISPLAY, "Display"}, { EDP_TYPE_INFO, "Info"}, { EDP_TYPE_VLAN, "VL"}, { EDP_TYPE_ESRP, "ESRP"}, { EDP_TYPE_EAPS, "EAPS"}, { EDP_TYPE_ELRP, "ELRP"}, { EDP_TYPE_ESL, "ESL"}, { EDP_TYPE_ELSM, "ELSM"}, { 0, NULL } }; static const value_string edp_midtype_vals[] = { { 0, "MAC" }, { 0, NULL } }; static const value_string eaps_type_vals[] = { { 5, "Health" }, { 6, "Ring up flush fdb" }, { 7, "Ring down flush fdb" }, { 8, "Link down" }, { 0, NULL } }; static const value_string eaps_state_vals[] = { { 0, "Idle" }, { 1, "Complete" }, { 2, "Failed" }, { 3, "Links up" }, { 4, "Links down" }, { 5, "Pre Forwarding" }, { 0, NULL } }; static const value_string esl_role_vals[] = { { 1, "Controller" }, { 2, "Partner" }, { 0, NULL } }; static const value_string esl_state_vals[] = { { 1, "Ready" }, { 2, "Blocking" }, { 0, NULL } }; static const value_string esl_type_vals[] = { { 1, "Segment Health" }, { 0, NULL } }; static const value_string elsm_type_vals[] = { { 0x01, "Hello" }, { 0, NULL } }; static const value_string elsm_subtype_vals[] = { { 0x00, "-" }, { 0x01, "+" }, { 0, NULL } }; static int dissect_tlv_header(tvbuff_t *tvb, packet_info *pinfo _U_, int offset, int length _U_, proto_tree *tree) { proto_tree *tlv_tree; guint8 tlv_marker; guint8 tlv_type; guint16 tlv_length; tlv_marker = tvb_get_guint8(tvb, offset); tlv_type = tvb_get_guint8(tvb, offset + 1); tlv_length = tvb_get_ntohs(tvb, offset + 2); tlv_tree = proto_tree_add_subtree_format(tree, tvb, offset, 4, ett_edp_tlv_header, NULL, "Marker 0x%02x, length %d, type %d = %s", tlv_marker, tlv_length, tlv_type, val_to_str(tlv_type, edp_type_vals, "Unknown (0x%02x)")); proto_tree_add_item(tlv_tree, hf_edp_tlv_marker, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; proto_tree_add_uint(tlv_tree, hf_edp_tlv_type, tvb, offset, 1, tlv_type); offset += 1; proto_tree_add_uint(tlv_tree, hf_edp_tlv_length, tvb, offset, 2, tlv_length); offset += 2; return offset; } static void dissect_display_tlv(tvbuff_t *tvb, packet_info *pinfo, int offset, int length, proto_tree *tree) { proto_item *display_item; proto_tree *display_tree; const guint8 *display_name; display_item = proto_tree_add_item(tree, hf_edp_display, tvb, offset, length, ENC_BIG_ENDIAN); display_tree = proto_item_add_subtree(display_item, ett_edp_display); dissect_tlv_header(tvb, pinfo, offset, 4, display_tree); offset += 4; length -= 4; proto_tree_add_item_ret_string(display_tree, hf_edp_display_string, tvb, offset, length, ENC_ASCII, wmem_packet_scope(), &display_name); proto_item_append_text(display_item, ": \"%s\"", format_text(wmem_packet_scope(), display_name, strlen(display_name))); } static int dissect_null_tlv(tvbuff_t *tvb, packet_info *pinfo, int offset, int length, proto_tree *tree) { proto_item *null_item; proto_tree *null_tree; null_item = proto_tree_add_protocol_format(tree, hf_edp_null, tvb, offset, length, "Null"); null_tree = proto_item_add_subtree(null_item, ett_edp_null); dissect_tlv_header(tvb, pinfo, offset, 4, null_tree); offset += 4; return offset; } static int dissect_info_tlv(tvbuff_t *tvb, packet_info *pinfo, int offset, int length, proto_tree *tree) { proto_tree *ver_tree; guint8 major1, major2, sustaining, internal; guint16 port, slot; proto_item *info_item; proto_tree *info_tree; /* The slot and port numbers printed on the chassis are 1 bigger than the transmitted values indicate */ slot = tvb_get_ntohs(tvb, offset + 0 + 4) + 1; port = tvb_get_ntohs(tvb, offset + 2 + 4) + 1; /* version */ major1 = tvb_get_guint8(tvb, offset + 12 + 4); major2 = tvb_get_guint8(tvb, offset + 13 + 4); sustaining = tvb_get_guint8(tvb, offset + 14 + 4); internal = tvb_get_guint8(tvb, offset + 15 + 4); info_item = proto_tree_add_protocol_format(tree, hf_edp_info, tvb, offset, length, "Info: Slot/Port: %d/%d, Version: %d.%d.%d.%d", slot, port, major1, major2, sustaining, internal); info_tree = proto_item_add_subtree(info_item, ett_edp_info); dissect_tlv_header(tvb, pinfo, offset, 4, info_tree); offset += 4; proto_tree_add_uint(info_tree, hf_edp_info_slot, tvb, offset, 2, slot); offset += 2; proto_tree_add_uint(info_tree, hf_edp_info_port, tvb, offset, 2, port); offset += 2; proto_tree_add_item(info_tree, hf_edp_info_vchassid, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(info_tree, hf_edp_info_reserved, tvb, offset, 6, ENC_NA); offset += 6; /* Begin version subtree */ ver_tree = proto_tree_add_subtree_format(info_tree, tvb, offset, 4, ett_edp_info_version, NULL, "Version: %u.%u.%u Internal: %u", major1, major2, sustaining, internal); proto_tree_add_item(ver_tree, hf_edp_info_version, tvb, offset, 4, ENC_BIG_ENDIAN); proto_tree_add_uint(ver_tree, hf_edp_info_version_major1, tvb, offset, 1, major1); offset += 1; proto_tree_add_uint(ver_tree, hf_edp_info_version_major2, tvb, offset, 1, major2); offset += 1; proto_tree_add_uint(ver_tree, hf_edp_info_version_sustaining, tvb, offset, 1, sustaining); offset += 1; proto_tree_add_uint(ver_tree, hf_edp_info_version_internal, tvb, offset, 1, internal); offset += 1; /* End of version subtree */ proto_tree_add_item(info_tree, hf_edp_info_vchassconn, tvb, offset, 16, ENC_NA); offset += 16; return offset; } static int dissect_vlan_tlv(tvbuff_t *tvb, packet_info *pinfo, int offset, int length, proto_tree *tree) { proto_item *flags_item; proto_tree *flags_tree; proto_item *vlan_item; proto_tree *vlan_tree; guint16 vlan_id; const guint8 *vlan_name; vlan_item = proto_tree_add_item(tree, hf_edp_vlan, tvb, offset, length, ENC_BIG_ENDIAN); vlan_tree = proto_item_add_subtree(vlan_item, ett_edp_vlan); dissect_tlv_header(tvb, pinfo, offset, 4, vlan_tree); offset += 4; length -= 4; /* Begin flags subtree */ if (length < 1) { expert_add_info(pinfo, vlan_item, &ei_edp_short_tlv); return offset; } flags_item = proto_tree_add_item(vlan_tree, hf_edp_vlan_flags, tvb, offset, 1, ENC_BIG_ENDIAN); flags_tree = proto_item_add_subtree(flags_item, ett_edp_vlan_flags); proto_tree_add_item(flags_tree, hf_edp_vlan_flags_ip, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(flags_tree, hf_edp_vlan_flags_reserved, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(flags_tree, hf_edp_vlan_flags_unknown, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; length -= 1; /* End of flags subtree */ if (length < 1) { expert_add_info(pinfo, vlan_item, &ei_edp_short_tlv); return offset; } proto_tree_add_item(vlan_tree, hf_edp_vlan_reserved1, tvb, offset, 1, ENC_NA); offset += 1; length -= 1; if (length < 2) { expert_add_info(pinfo, vlan_item, &ei_edp_short_tlv); return offset; } vlan_id = tvb_get_ntohs(tvb, offset); col_append_fstr(pinfo->cinfo, COL_INFO, "%d", vlan_id); proto_item_append_text(vlan_item, ": ID %d", vlan_id); proto_tree_add_uint(vlan_tree, hf_edp_vlan_id, tvb, offset, 2, vlan_id); offset += 2; length -= 2; if (length < 4) { expert_add_info(pinfo, vlan_item, &ei_edp_short_tlv); return offset; } proto_tree_add_item(vlan_tree, hf_edp_vlan_reserved2, tvb, offset, 4, ENC_NA); offset += 4; length -= 4; if (length < 4) { expert_add_info(pinfo, vlan_item, &ei_edp_short_tlv); return offset; } proto_tree_add_item(vlan_tree, hf_edp_vlan_ip, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; length -= 4; proto_tree_add_item_ret_string(vlan_tree, hf_edp_vlan_name, tvb, offset, length, ENC_ASCII, wmem_packet_scope(), &vlan_name); proto_item_append_text(vlan_item, ", Name \"%s\"", format_text(wmem_packet_scope(), vlan_name, strlen(vlan_name))); offset += length; return offset; } static int dissect_esrp_tlv(tvbuff_t *tvb, packet_info *pinfo, int offset, int length, proto_tree *tree) { proto_item *esrp_item; proto_tree *esrp_tree; guint16 group; group = tvb_get_guint8(tvb, offset + 1 + 4); esrp_item = proto_tree_add_protocol_format(tree, hf_edp_esrp, tvb, offset, length, "ESRP: Group %d", group); esrp_tree = proto_item_add_subtree(esrp_item, ett_edp_esrp); dissect_tlv_header(tvb, pinfo, offset, 4, esrp_tree); offset += 4; proto_tree_add_item(esrp_tree, hf_edp_esrp_proto, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; proto_tree_add_item(esrp_tree, hf_edp_esrp_group, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; proto_tree_add_item(esrp_tree, hf_edp_esrp_prio, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(esrp_tree, hf_edp_esrp_state, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(esrp_tree, hf_edp_esrp_ports, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(esrp_tree, hf_edp_esrp_virtip, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; proto_tree_add_item(esrp_tree, hf_edp_esrp_sysmac, tvb, offset, 6, ENC_NA); offset += 6; proto_tree_add_item(esrp_tree, hf_edp_esrp_hello, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(esrp_tree, hf_edp_esrp_reserved, tvb, offset, 2, ENC_NA); offset += 2; col_set_str(pinfo->cinfo, COL_PROTOCOL, "ESRP"); return offset; } static int dissect_eaps_tlv(tvbuff_t *tvb, packet_info *pinfo, int offset, int length, proto_tree *tree) { proto_item *eaps_item; proto_tree *eaps_tree; guint16 ctrlvlanid; const gchar *sysmac_str; ctrlvlanid = tvb_get_ntohs(tvb, offset + 1 + 1 + 4); sysmac_str = tvb_ether_to_str(tvb, offset + 12); eaps_item = proto_tree_add_protocol_format(tree, hf_edp_eaps, tvb, offset, length, "EAPS: Ctrlvlan %d, Sysmac %s", ctrlvlanid, sysmac_str); eaps_tree = proto_item_add_subtree(eaps_item, ett_edp_eaps); dissect_tlv_header(tvb, pinfo, offset, 4, eaps_tree); offset += 4; proto_tree_add_item(eaps_tree, hf_edp_eaps_ver, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; proto_tree_add_item(eaps_tree, hf_edp_eaps_type, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; proto_tree_add_item(eaps_tree, hf_edp_eaps_ctrlvlanid, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(eaps_tree, hf_edp_eaps_reserved0, tvb, offset, 4, ENC_NA); offset += 4; proto_tree_add_item(eaps_tree, hf_edp_eaps_sysmac, tvb, offset, 6, ENC_NA); offset += 6; proto_tree_add_item(eaps_tree, hf_edp_eaps_hello, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(eaps_tree, hf_edp_eaps_fail, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(eaps_tree, hf_edp_eaps_state, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; proto_tree_add_item(eaps_tree, hf_edp_eaps_reserved1, tvb, offset, 1, ENC_NA); offset += 1; proto_tree_add_item(eaps_tree, hf_edp_eaps_helloseq, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(eaps_tree, hf_edp_eaps_reserved2, tvb, offset, 38, ENC_NA); offset += 38; col_set_str(pinfo->cinfo, COL_PROTOCOL, "EAPS"); col_append_fstr(pinfo->cinfo, COL_INFO, " ID: %d, MAC: %s", ctrlvlanid, sysmac_str); return offset; } static int dissect_esl_tlv(tvbuff_t *tvb, packet_info *pinfo, int offset, int length, proto_tree *tree) { proto_item *esl_item; proto_tree *esl_tree; guint16 ctrlvlanid; guint16 numlinks; const gchar *sysmac_str; ctrlvlanid = tvb_get_ntohs(tvb, offset + 2 + 4); sysmac_str = tvb_ether_to_str(tvb, offset + 12); esl_item = proto_tree_add_protocol_format(tree, hf_edp_esl, tvb, offset, length, "ESL: Ctrlvlan %d, Sysmac %s", ctrlvlanid, sysmac_str); esl_tree = proto_item_add_subtree(esl_item, ett_edp_esl); dissect_tlv_header(tvb, pinfo, offset, 4, esl_tree); offset += 4; length -= 4; proto_tree_add_item(esl_tree, hf_edp_esl_ver, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; length -= 1; proto_tree_add_item(esl_tree, hf_edp_esl_type, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; length -= 1; proto_tree_add_item(esl_tree, hf_edp_esl_ctrlvlanid, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; length -= 2; proto_tree_add_item(esl_tree, hf_edp_esl_reserved0, tvb, offset, 4, ENC_NA); offset += 4; length -= 4; proto_tree_add_item(esl_tree, hf_edp_esl_sysmac, tvb, offset, 6, ENC_NA); offset += 6; length -= 6; proto_tree_add_item(esl_tree, hf_edp_esl_reserved1, tvb, offset, 4, ENC_NA); offset += 4; length -= 4; proto_tree_add_item(esl_tree, hf_edp_esl_state, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; length -= 1; proto_tree_add_item(esl_tree, hf_edp_esl_linkrole, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; length -= 1; proto_tree_add_item(esl_tree, hf_edp_esl_linkid1, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; length -= 2; proto_tree_add_item(esl_tree, hf_edp_esl_failed1, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; length -= 2; proto_tree_add_item(esl_tree, hf_edp_esl_failed2, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; length -= 2; proto_tree_add_item(esl_tree, hf_edp_esl_reserved4, tvb, offset, 2, ENC_NA); offset += 2; length -= 2; proto_tree_add_item(esl_tree, hf_edp_esl_linkid2, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; length -= 2; proto_tree_add_item(esl_tree, hf_edp_esl_reserved5, tvb, offset, 2, ENC_NA); offset += 2; length -= 2; numlinks = tvb_get_ntohs(tvb, offset); proto_tree_add_item(esl_tree, hf_edp_esl_numlinks, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; length -= 2; for (; numlinks > 0 && length >= 2; numlinks--) { proto_tree_add_item(esl_tree, hf_edp_esl_linklist, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; length -= 2; } proto_tree_add_item(esl_tree, hf_edp_esl_rest, tvb, offset, length, ENC_NA); offset += length; col_set_str(pinfo->cinfo, COL_PROTOCOL, "ESL"); col_append_fstr(pinfo->cinfo, COL_INFO, " ID: %d, MAC: %s", ctrlvlanid, sysmac_str); return offset; } static int dissect_elsm_tlv(tvbuff_t *tvb, packet_info *pinfo, int offset, int length, proto_tree *tree, guint16 seqno) { proto_item *elsm_item; proto_tree *elsm_tree; guint8 type, subtype; type = tvb_get_guint8(tvb, offset + 4); subtype = tvb_get_guint8(tvb, offset + 4 + 1); col_append_fstr(pinfo->cinfo, COL_INFO, " %s%s (#%d)", val_to_str(type, elsm_type_vals, "Unknown (0x%02x)"), val_to_str(subtype, elsm_subtype_vals, " Unknown (0x%02x)"), seqno); elsm_item = proto_tree_add_protocol_format(tree, hf_edp_elsm, tvb, offset, length, "ELSM %s%s(#%d)", val_to_str(type, elsm_type_vals, "Unknown (0x%02x)"), val_to_str(subtype, elsm_subtype_vals, " Unknown (0x%02x)"), seqno); elsm_tree = proto_item_add_subtree(elsm_item, ett_edp_elsm); dissect_tlv_header(tvb, pinfo, offset, 4, elsm_tree); offset += 4; /* The rest is actually guesswork */ proto_tree_add_item(elsm_tree, hf_edp_elsm_type, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; proto_tree_add_item(elsm_tree, hf_edp_elsm_subtype, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; proto_tree_add_item(elsm_tree, hf_edp_elsm_magic, tvb, offset, 2, ENC_NA); offset += 2; return offset; } static void dissect_elrp_tlv(tvbuff_t *tvb, packet_info *pinfo, int offset, int length, proto_tree *tree) { proto_item *elrp_item; proto_tree *elrp_tree; elrp_item = proto_tree_add_protocol_format(tree, hf_edp_elrp, tvb, offset, length, "ELRP"); elrp_tree = proto_item_add_subtree(elrp_item, ett_edp_elrp); dissect_tlv_header(tvb, pinfo, offset, 4, elrp_tree); offset += 4; length -= 4; proto_tree_add_item(elrp_tree, hf_edp_elrp_unknown, tvb, offset, length, ENC_NA); } static void dissect_unknown_tlv(tvbuff_t *tvb, packet_info *pinfo, int offset, int length, proto_tree *tree) { proto_item *unknown_item; proto_tree *unknown_tree; guint8 tlv_type; tlv_type = tvb_get_guint8(tvb, offset + 1); unknown_item = proto_tree_add_protocol_format(tree, hf_edp_unknown, tvb, offset, length, "Unknown element [0x%02x]", tlv_type); unknown_tree = proto_item_add_subtree(unknown_item, ett_edp_unknown); dissect_tlv_header(tvb, pinfo, offset, 4, unknown_tree); offset += 4; length -= 4; proto_tree_add_item(unknown_tree, hf_edp_unknown_data, tvb, offset, length, ENC_NA); } static int dissect_edp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_) { proto_item *ti; proto_tree *edp_tree; guint32 offset = 0; gboolean last = FALSE; guint8 tlv_type; guint16 tlv_length; guint16 data_length; guint16 seqno; vec_t cksum_vec[1]; col_set_str(pinfo->cinfo, COL_PROTOCOL, PROTO_SHORT_NAME); col_set_str(pinfo->cinfo, COL_INFO, PROTO_SHORT_NAME ":"); ti = proto_tree_add_item(tree, proto_edp, tvb, offset, -1, ENC_NA); edp_tree = proto_item_add_subtree(ti, ett_edp); proto_tree_add_item(edp_tree, hf_edp_version, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; proto_tree_add_item(edp_tree, hf_edp_reserved, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; data_length = tvb_get_ntohs(tvb, offset); proto_tree_add_uint(edp_tree, hf_edp_length, tvb, offset, 2, data_length); offset += 2; /* * If we have the entire ESP packet available, check the checksum. */ if (tvb_captured_length(tvb) >= data_length) { /* Checksum from version to null tlv */ SET_CKSUM_VEC_TVB(cksum_vec[0], tvb, 0, data_length); proto_tree_add_checksum(edp_tree, tvb, offset, hf_edp_checksum, hf_edp_checksum_status, &ei_edp_checksum, pinfo, in_cksum(&cksum_vec[0], 1), ENC_BIG_ENDIAN, PROTO_CHECKSUM_VERIFY|PROTO_CHECKSUM_IN_CKSUM); } else { proto_tree_add_checksum(edp_tree, tvb, offset, hf_edp_checksum, hf_edp_checksum_status, &ei_edp_checksum, pinfo, 0, ENC_BIG_ENDIAN, PROTO_CHECKSUM_NO_FLAGS); } offset += 2; seqno = tvb_get_ntohs(tvb, offset); proto_tree_add_item(edp_tree, hf_edp_seqno, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; /* Machine ID is 8 bytes, if it starts with 0000, the remaining 6 bytes are a MAC */ proto_tree_add_item(edp_tree, hf_edp_midtype, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(edp_tree, hf_edp_midmac, tvb, offset, 6, ENC_NA); offset += 6; /* Decode the individual TLVs */ while (offset < data_length && !last) { if (data_length - offset < 4) { proto_tree_add_expert_format(edp_tree, pinfo, &ei_edp_short_tlv, tvb, offset, 4, "Too few bytes left for TLV: %u (< 4)", data_length - offset); break; } tlv_type = tvb_get_guint8(tvb, offset + 1); tlv_length = tvb_get_ntohs(tvb, offset + 2); if ((tlv_length < 4) || (tlv_length > (data_length - offset))) { proto_tree_add_expert_format(edp_tree, pinfo, &ei_edp_short_tlv, tvb, offset, 0, "TLV with invalid length: %u", tlv_length); break; } if (tlv_type != EDP_TYPE_NULL) col_append_fstr(pinfo->cinfo, COL_INFO, " %s", val_to_str(tlv_type, edp_type_vals, "[0x%02x]")); switch (tlv_type) { case EDP_TYPE_NULL: /* Last TLV */ dissect_null_tlv(tvb, pinfo, offset, tlv_length, edp_tree); last = TRUE; break; case EDP_TYPE_DISPLAY: /* MIB II display string */ dissect_display_tlv(tvb, pinfo, offset, tlv_length, edp_tree); break; case EDP_TYPE_INFO: /* Basic system information */ dissect_info_tlv(tvb, pinfo, offset, tlv_length, edp_tree); break; case EDP_TYPE_VLAN: /* VLAN info */ dissect_vlan_tlv(tvb, pinfo, offset, tlv_length, edp_tree); break; case EDP_TYPE_ESRP: /* Extreme Standby Router Protocol */ dissect_esrp_tlv(tvb, pinfo, offset, tlv_length, edp_tree); break; case EDP_TYPE_EAPS: /* Ethernet Automatic Protection Switching */ dissect_eaps_tlv(tvb, pinfo, offset, tlv_length, edp_tree); break; case EDP_TYPE_ESL: /* EAPS shared link */ dissect_esl_tlv(tvb, pinfo, offset, tlv_length, edp_tree); break; case EDP_TYPE_ELSM: /* Extreme Link Status Monitoring */ dissect_elsm_tlv(tvb, pinfo, offset, tlv_length, edp_tree, seqno); break; case EDP_TYPE_ELRP: /* Extreme Loop Recognition Protocol */ dissect_elrp_tlv(tvb, pinfo, offset, tlv_length, edp_tree); break; default: dissect_unknown_tlv(tvb, pinfo, offset, tlv_length, edp_tree); break; } offset += tlv_length; } return tvb_captured_length(tvb); } void proto_register_edp(void) { static hf_register_info hf[] = { /* EDP header */ { &hf_edp_version, { "Version", "edp.version", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_edp_reserved, { "Reserved", "edp.reserved", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_edp_length, { "Data length", "edp.length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_edp_checksum, { "EDP checksum", "edp.checksum", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL }}, { &hf_edp_checksum_status, { "EDP checksum status", "edp.checksum.status", FT_UINT8, BASE_NONE, VALS(proto_checksum_vals), 0x0, NULL, HFILL }}, { &hf_edp_seqno, { "Sequence number", "edp.seqno", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_edp_midtype, { "Machine ID type", "edp.midtype", FT_UINT16, BASE_DEC, VALS(edp_midtype_vals), 0x0, NULL, HFILL }}, { &hf_edp_midmac, { "Machine MAC", "edp.midmac", FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL }}, /* TLV header */ { &hf_edp_tlv_marker, { "TLV Marker", "edp.tlv.marker", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }}, { &hf_edp_tlv_type, { "TLV type", "edp.tlv.type", FT_UINT8, BASE_DEC, VALS(edp_type_vals), 0x0, NULL, HFILL }}, { &hf_edp_tlv_length, { "TLV length", "edp.tlv.length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, /* Display element */ { &hf_edp_display, { "Display", "edp.display", FT_PROTOCOL, BASE_NONE, NULL, 0x0, "Display element", HFILL }}, { &hf_edp_display_string, { "Name", "edp.display.string", FT_STRING, BASE_NONE, NULL, 0x0, "MIB II display string", HFILL }}, /* Info element */ { &hf_edp_info, { "Info", "edp.info", FT_PROTOCOL, BASE_NONE, NULL, 0x0, "Info element", HFILL }}, { &hf_edp_info_slot, { "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, NULL, HFILL }}, { &hf_edp_info_version, { "Version", "edp.info.version", FT_UINT32, BASE_HEX, NULL, 0x0, "Software version", HFILL }}, { &hf_edp_info_version_major1, { "Version (major1)", "edp.info.version.major1", FT_UINT8, BASE_DEC, NULL, 0x0, "Software version (major1)", HFILL }}, { &hf_edp_info_version_major2, { "Version (major2)", "edp.info.version.major2", FT_UINT8, BASE_DEC, NULL, 0x0, "Software version (major2)", HFILL }}, { &hf_edp_info_version_sustaining, { "Version (sustaining)", "edp.info.version.sustaining", FT_UINT8, BASE_DEC, NULL, 0x0, "Software version (sustaining)", HFILL }}, { &hf_edp_info_version_internal, { "Version (internal)", "edp.info.version.internal", FT_UINT8, BASE_DEC, NULL, 0x0, "Software version (internal)", HFILL }}, { &hf_edp_info_vchassconn, { "Connections", "edp.info.vchassconn", FT_BYTES, BASE_NONE, NULL, 0x0, "Virtual chassis connections", HFILL }}, /* VLAN element */ { &hf_edp_vlan, { "Vlan", "edp.vlan", FT_PROTOCOL, BASE_NONE, NULL, 0x0, "Vlan element", HFILL }}, { &hf_edp_vlan_flags, { "Flags", "edp.vlan.flags", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }}, { &hf_edp_vlan_flags_ip, { "Flags-IP", "edp.vlan.flags.ip", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x80, "Vlan has IP address configured", HFILL }}, { &hf_edp_vlan_flags_reserved, { "Flags-reserved", "edp.vlan.flags.reserved", FT_UINT8, BASE_HEX, NULL, 0x7e, NULL, HFILL }}, { &hf_edp_vlan_flags_unknown, { "Flags-Unknown", "edp.vlan.flags.unknown", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x01, NULL, HFILL }}, { &hf_edp_vlan_reserved1, { "Reserved1", "edp.vlan.reserved1", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_edp_vlan_id, { "Vlan ID", "edp.vlan.id", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_edp_vlan_reserved2, { "Reserved2", "edp.vlan.reserved2", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, 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, { "ESRP", "edp.esrp", FT_PROTOCOL, BASE_NONE, NULL, 0x0, "Extreme Standby Router Protocol element", HFILL }}, { &hf_edp_esrp_proto, { "Protocol", "edp.esrp.proto", FT_UINT8, BASE_DEC, VALS(esrp_proto_vals), 0x0, NULL, HFILL }}, { &hf_edp_esrp_group, { "Group", "edp.esrp.group", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_edp_esrp_prio, { "Prio", "edp.esrp.prio", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_edp_esrp_state, { "State", "edp.esrp.state", FT_UINT16, BASE_DEC, VALS(esrp_state_vals), 0x0, NULL, 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_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }}, /* EAPS element */ { &hf_edp_eaps, { "EAPS", "edp.eaps", FT_PROTOCOL, BASE_NONE, NULL, 0x0, "Ethernet Automatic Protection Switching element", HFILL }}, { &hf_edp_eaps_ver, { "Version", "edp.eaps.ver", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_edp_eaps_type, { "Type", "edp.eaps.type", FT_UINT8, BASE_DEC, VALS(eaps_type_vals), 0x0, NULL, HFILL }}, { &hf_edp_eaps_ctrlvlanid, { "Vlan ID", "edp.eaps.vlanid", FT_UINT16, BASE_DEC, NULL, 0x0, "Control Vlan ID", HFILL }}, { &hf_edp_eaps_reserved0, { "Reserved0", "edp.eaps.reserved0", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_edp_eaps_sysmac, { "Sys MAC", "edp.eaps.sysmac", FT_ETHER, BASE_NONE, NULL, 0x0, "System MAC address", HFILL }}, { &hf_edp_eaps_hello, { "Hello", "edp.eaps.hello", FT_UINT16, BASE_DEC, NULL, 0x0, "Hello timer", HFILL }}, { &hf_edp_eaps_fail, { "Fail", "edp.eaps.fail", FT_UINT16, BASE_DEC, NULL, 0x0, "Fail timer", HFILL }}, { &hf_edp_eaps_state, { "State", "edp.eaps.state", FT_UINT8, BASE_DEC, VALS(eaps_state_vals), 0x0, NULL, HFILL }}, { &hf_edp_eaps_reserved1, { "Reserved1", "edp.eaps.reserved1", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_edp_eaps_helloseq, { "Helloseq", "edp.eaps.helloseq", FT_UINT16, BASE_DEC, NULL, 0x0, "Hello sequence", HFILL }}, { &hf_edp_eaps_reserved2, { "Reserved2", "edp.eaps.reserved2", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }}, /* ESL element (EAPS shared link) */ { &hf_edp_esl, { "ESL", "edp.esl", FT_PROTOCOL, BASE_NONE, NULL, 0x0, "EAPS shared link", HFILL }}, { &hf_edp_esl_ver, { "Version", "edp.esl.ver", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_edp_esl_type, { "Type", "edp.esl.type", FT_UINT8, BASE_DEC, VALS(esl_type_vals), 0x0, NULL, HFILL }}, { &hf_edp_esl_ctrlvlanid, { "Vlan ID", "edp.esl.vlanid", FT_UINT16, BASE_DEC, NULL, 0x0, "Control Vlan ID", HFILL }}, { &hf_edp_esl_reserved0, { "Reserved0", "edp.esl.reserved0", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_edp_esl_sysmac, { "Sys MAC", "edp.esl.sysmac", FT_ETHER, BASE_NONE, NULL, 0x0, "System MAC address", HFILL }}, { &hf_edp_esl_reserved1, { "Reserved1", "edp.esl.reserved1", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_edp_esl_state, { "State", "edp.esl.state", FT_UINT8, BASE_DEC, VALS(esl_state_vals), 0x0, NULL, HFILL }}, { &hf_edp_esl_linkrole, { "Role", "edp.esl.role", FT_UINT8, BASE_DEC, VALS(esl_role_vals), 0x0, NULL, HFILL }}, { &hf_edp_esl_linkid1, { "Link ID 1", "edp.esl.linkid1", FT_UINT16, BASE_DEC, NULL, 0x0, "Shared link ID 1", HFILL }}, { &hf_edp_esl_failed1, { "Failed ID 1", "edp.esl.failed1", FT_UINT16, BASE_DEC, NULL, 0x0, "Failed link ID 1", HFILL }}, { &hf_edp_esl_failed2, { "Failed ID 2", "edp.esl.failed2", FT_UINT16, BASE_DEC, NULL, 0x0, "Failed link ID 2", HFILL }}, { &hf_edp_esl_reserved4, { "Reserved4", "edp.esl.reserved4", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_edp_esl_linkid2, { "Link ID 2", "edp.esl.linkid2", FT_UINT16, BASE_DEC, NULL, 0x0, "Shared link ID 2", HFILL }}, { &hf_edp_esl_reserved5, { "Reserved5", "edp.esl.reserved5", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_edp_esl_numlinks, { "Num Shared Links", "edp.esl.numlinks", FT_UINT16, BASE_DEC, NULL, 0x0, "Number of shared links in the network", HFILL }}, { &hf_edp_esl_linklist, { "Link List", "edp.esl.linklist", FT_UINT16, BASE_DEC, NULL, 0x0, "List of Shared Link IDs", HFILL }}, { &hf_edp_esl_rest, { "Rest", "edp.esl.rest", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }}, /* ELSM element */ { &hf_edp_elsm, { "ELSM", "edp.elsm", FT_PROTOCOL, BASE_NONE, NULL, 0x0, "Extreme Link Status Monitoring element", HFILL }}, { &hf_edp_elsm_type, { "Type", "edp.elsm.type", FT_UINT8, BASE_DEC, VALS(elsm_type_vals), 0x0, NULL, HFILL }}, { &hf_edp_elsm_subtype, { "Subtype", "edp.elsm.subtype", FT_UINT8, BASE_DEC, VALS(elsm_subtype_vals), 0x0, NULL, HFILL }}, { &hf_edp_elsm_magic, { "Magic", "edp.elsm.unknown", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }}, /* ELRP element */ { &hf_edp_elrp, { "ELRP", "edp.elrp", FT_PROTOCOL, BASE_NONE, NULL, 0x0, "Extreme Loop Recognition Protocol element", HFILL }}, { &hf_edp_elrp_unknown, { "Unknown", "edp.elrp.unknown", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }}, /* Unknown element */ { &hf_edp_unknown, { "Unknown", "edp.unknown", FT_PROTOCOL, BASE_NONE, NULL, 0x0, "Element unknown to Wireshark", HFILL }}, { &hf_edp_unknown_data, { "Unknown", "edp.unknown.data", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }}, /* Null element */ { &hf_edp_null, { "End", "edp.null", FT_PROTOCOL, BASE_NONE, NULL, 0x0, "Last element", HFILL }}, }; static hf_register_info extreme_hf[] = { { &hf_llc_extreme_pid, { "PID", "llc.extreme_pid", FT_UINT16, BASE_HEX, VALS(extreme_pid_vals), 0x0, NULL, HFILL } } }; static gint *ett[] = { &ett_edp, &ett_edp_tlv_header, &ett_edp_vlan_flags, &ett_edp_display, &ett_edp_info, &ett_edp_info_version, &ett_edp_vlan, &ett_edp_esrp, &ett_edp_eaps, &ett_edp_esl, &ett_edp_elrp, &ett_edp_elsm, &ett_edp_unknown, &ett_edp_null, }; static ei_register_info ei[] = { { &ei_edp_short_tlv, { "edp.short_tlv", PI_MALFORMED, PI_ERROR, "TLV is too short", EXPFILL }}, { &ei_edp_checksum, { "edp.bad_checksum", PI_CHECKSUM, PI_ERROR, "Bad checksum", EXPFILL }}, }; expert_module_t* expert_edp; 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)); expert_edp = expert_register_protocol(proto_edp); expert_register_field_array(expert_edp, ei, array_length(ei)); llc_add_oui(OUI_EXTREME, "llc.extreme_pid", "LLC Extreme OUI PID", extreme_hf, proto_edp); } void proto_reg_handoff_edp(void) { dissector_handle_t edp_handle; edp_handle = create_dissector_handle(dissect_edp, proto_edp); dissector_add_uint("llc.extreme_pid", 0x00bb, edp_handle); } /* * Editor modelines - http://www.wireshark.org/tools/modelines.html * * Local variables: * c-basic-offset: 8 * tab-width: 8 * indent-tabs-mode: t * End: * * vi: set shiftwidth=8 tabstop=8 noexpandtab: * :indentSize=8:tabSize=8:noTabs=false: */