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wireshark/epan/dissectors/packet-lacp.c

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/* packet-lacp.c
* Routines for Link Aggregation Control Protocol dissection.
* IEEE Std 802.1AX-2014 Section 6.4.2.3
* Split from IEEE Std 802.3-2005 and named IEEE 802.3ad before that
*
* Copyright 2002 Steve Housley <steve_housley@3com.com>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "config.h"
#include <epan/etypes.h>
#include <epan/packet.h>
#include <epan/to_str.h>
#include <epan/expert.h>
#include <epan/slow_protocol_subtypes.h>
/* General declarations */
void proto_register_lacp(void);
void proto_reg_handoff_lacp(void);
#define VLACP_MAGIC_LACP 0x01010114
#define VLACP_MAGIC_MARKER 0x02010114
/* TLV Types */
#define LACPDU_TYPE_TERMINATOR 0x00
#define LACPDU_TYPE_ACTOR_INFORMATION 0x01
#define LACPDU_TYPE_PARTNER_INFORMATION 0x02
#define LACPDU_TYPE_COLLECTOR_INFORMATION 0x03
static const value_string lacp_type_vals[] = {
{ LACPDU_TYPE_TERMINATOR, "Terminator" },
{ LACPDU_TYPE_ACTOR_INFORMATION, "Actor Information" },
{ LACPDU_TYPE_PARTNER_INFORMATION, "Partner Information" },
{ LACPDU_TYPE_COLLECTOR_INFORMATION, "Collector Information" },
{ 0, NULL }
};
/* Actor and Partner Flag bits */
#define LACPDU_FLAGS_ACTIVITY 0x01
#define LACPDU_FLAGS_TIMEOUT 0x02
#define LACPDU_FLAGS_AGGREGATION 0x04
#define LACPDU_FLAGS_SYNC 0x08
#define LACPDU_FLAGS_COLLECTING 0x10
#define LACPDU_FLAGS_DISTRIB 0x20
#define LACPDU_FLAGS_DEFAULTED 0x40
#define LACPDU_FLAGS_EXPIRED 0x80
/* Initialise the protocol and registered fields */
static int proto_lacp = -1;
static int hf_lacp_vlacp_subtype = -1;
static int hf_lacp_version = -1;
static int hf_lacp_tlv_type = -1;
static int hf_lacp_tlv_length = -1;
static int hf_lacp_actor_sysid_priority = -1;
static int hf_lacp_actor_sysid = -1;
static int hf_lacp_actor_key = -1;
static int hf_lacp_actor_port_priority = -1;
static int hf_lacp_actor_port = -1;
static int hf_lacp_actor_state = -1;
static int hf_lacp_actor_state_str = -1;
static int hf_lacp_flags_a_activity = -1;
static int hf_lacp_flags_a_timeout = -1;
static int hf_lacp_flags_a_aggregation = -1;
static int hf_lacp_flags_a_sync = -1;
static int hf_lacp_flags_a_collecting = -1;
static int hf_lacp_flags_a_distrib = -1;
static int hf_lacp_flags_a_defaulted = -1;
static int hf_lacp_flags_a_expired = -1;
static int hf_lacp_actor_reserved = -1;
static int hf_lacp_partner_sysid_priority = -1;
static int hf_lacp_partner_sysid = -1;
static int hf_lacp_partner_key = -1;
static int hf_lacp_partner_port_priority = -1;
static int hf_lacp_partner_port = -1;
static int hf_lacp_partner_state = -1;
static int hf_lacp_partner_state_str = -1;
static int hf_lacp_flags_p_activity = -1;
static int hf_lacp_flags_p_timeout = -1;
static int hf_lacp_flags_p_aggregation = -1;
static int hf_lacp_flags_p_sync = -1;
static int hf_lacp_flags_p_collecting = -1;
static int hf_lacp_flags_p_distrib = -1;
static int hf_lacp_flags_p_defaulted = -1;
static int hf_lacp_flags_p_expired = -1;
static int hf_lacp_partner_reserved = -1;
static int hf_lacp_coll_max_delay = -1;
static int hf_lacp_coll_reserved = -1;
static int hf_lacp_pad = -1;
static int hf_lacp_vendor = -1;
static int hf_lacp_vendor_hp_length = -1;
static int hf_lacp_vendor_hp_irf_domain = -1;
static int hf_lacp_vendor_hp_irf_mac = -1;
static int hf_lacp_vendor_hp_irf_switch = -1;
static int hf_lacp_vendor_hp_irf_port = -1;
static int hf_lacp_vendor_hp_unknown = -1;
/* Initialise the subtree pointers */
static gint ett_lacp = -1;
static gint ett_lacp_a_flags = -1;
static gint ett_lacp_p_flags = -1;
/* Expert Items */
static expert_field ei_lacp_wrong_tlv_type = EI_INIT;
static expert_field ei_lacp_wrong_tlv_length = EI_INIT;
static const true_false_string tfs_active_passive = { "Active", "Passive" };
static const true_false_string tfs_short_long_timeout = { "Short Timeout", "Long Timeout" };
static const true_false_string tfs_aggregatable_individual = { "Aggregatable", "Individual" };
static const true_false_string tfs_in_sync_out_sync = { "In Sync", "Out of Sync" };
static const char * lacp_state_flags_to_str(guint32 value)
{
wmem_strbuf_t *buf = wmem_strbuf_new(wmem_packet_scope(), "");
const unsigned int flags_count = 8;
const char first_letters[] = "EFDCSGSA";
unsigned int i;
for (i = 0; i < flags_count; i++) {
if (((value >> (flags_count - 1 - i)) & 1)) {
wmem_strbuf_append_c(buf, first_letters[i]);
} else {
wmem_strbuf_append_c(buf, '*');
}
}
return wmem_strbuf_finalize(buf);
}
/*
* Name: dissect_lacp
*
* Description:
* This function is used to dissect the Link Aggregation Control Protocol
* defined in IEEE 802.1AX
*
* Input Arguments:
* tvb: buffer associated with the rcv packet (see tvbuff.h).
* pinfo: structure associated with the rcv packet (see packet_info.h).
* tree: the protocol tree associated with the rcv packet (see proto.h).
*
* Return Values: None
*
* Notes:
*/
static int
dissect_lacp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
int offset = 0, length_remaining;
guint tlv_type, tlv_length;
guint version, port, key;
const gchar *sysidstr, *flagstr;
guint32 protodetect;
guint8 is_vlacp;
proto_tree *lacp_tree;
proto_item *lacp_item, *tlv_type_item, *tlv_length_item;
proto_item *ti;
static int * const actor_flags[] = {
&hf_lacp_flags_a_activity,
&hf_lacp_flags_a_timeout,
&hf_lacp_flags_a_aggregation,
&hf_lacp_flags_a_sync,
&hf_lacp_flags_a_collecting,
&hf_lacp_flags_a_distrib,
&hf_lacp_flags_a_defaulted,
&hf_lacp_flags_a_expired,
NULL
};
static int * const partner_flags[] = {
&hf_lacp_flags_p_activity,
&hf_lacp_flags_p_timeout,
&hf_lacp_flags_p_aggregation,
&hf_lacp_flags_p_sync,
&hf_lacp_flags_p_collecting,
&hf_lacp_flags_p_distrib,
&hf_lacp_flags_p_defaulted,
&hf_lacp_flags_p_expired,
NULL
};
col_set_str(pinfo->cinfo, COL_PROTOCOL, "LACP");
col_set_str(pinfo->cinfo, COL_INFO, "Link Aggregation Control Protocol");
/* FIXME
* Validate that the destination MAC address is one of the following
* (IEEE 802.1AX-2014 6.2.11.2):
* 01-80-C2-00-00-00: Nearest Customer Bridge group address
* 01-80-C2-00-00-02: IEEE 802.3 Slow_Protocols_Mulitcast group address
* 01-80-C2-00-00-03: Nearest non-TPMR Bridge group address
*/
protodetect = tvb_get_ntohl(tvb, 0);
if ((protodetect == VLACP_MAGIC_LACP) || (protodetect == VLACP_MAGIC_MARKER)) {
is_vlacp = 1;
/* Add vLACP Heading */
lacp_item = proto_tree_add_protocol_format(tree, proto_lacp, tvb,
0, -1, "Virtual Link Aggregation Control Protocol");
} else {
is_vlacp = 0;
/* Add LACP Heading - Note: 1 byte for slowprotocol has been consumed already */
lacp_item = proto_tree_add_protocol_format(tree, proto_lacp, tvb,
0, -1, "Link Aggregation Control Protocol");
}
lacp_tree = proto_item_add_subtree(lacp_item, ett_lacp);
if (is_vlacp == 1) {
proto_tree_add_item(lacp_tree, hf_lacp_vlacp_subtype, tvb, offset, 1, ENC_NA);
offset += 1;
}
/* Version Number */
proto_tree_add_item_ret_uint(lacp_tree, hf_lacp_version, tvb, offset, 1, ENC_NA, &version);
offset += 1;
col_add_fstr(pinfo->cinfo, COL_INFO, "v%d", version);
/* Actor */
tlv_type_item = proto_tree_add_item_ret_uint(lacp_tree, hf_lacp_tlv_type, tvb, offset, 1, ENC_BIG_ENDIAN, &tlv_type);
offset += 1;
tlv_length_item = proto_tree_add_item_ret_uint(lacp_tree, hf_lacp_tlv_length, tvb, offset, 1, ENC_BIG_ENDIAN, &tlv_length);
offset += 1;
if (tlv_type != LACPDU_TYPE_ACTOR_INFORMATION) {
expert_add_info(pinfo, tlv_type_item, &ei_lacp_wrong_tlv_type);
}
if (tlv_length != 20) {
expert_add_info(pinfo, tlv_length_item, &ei_lacp_wrong_tlv_length);
}
proto_tree_add_item(lacp_tree, hf_lacp_actor_sysid_priority, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(lacp_tree, hf_lacp_actor_sysid, tvb, offset, 6, ENC_NA);
sysidstr = tvb_ether_to_str(tvb, offset);
offset += 6;
proto_tree_add_item_ret_uint(lacp_tree, hf_lacp_actor_key, tvb, offset, 2, ENC_BIG_ENDIAN, &key);
offset += 2;
proto_tree_add_item(lacp_tree, hf_lacp_actor_port_priority, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item_ret_uint(lacp_tree, hf_lacp_actor_port, tvb, offset, 2, ENC_BIG_ENDIAN, &port);
offset += 2;
proto_tree_add_bitmask_with_flags(lacp_tree, tvb, offset, hf_lacp_actor_state,
ett_lacp_a_flags, actor_flags, ENC_NA, BMT_NO_INT|BMT_NO_TFS|BMT_NO_FALSE);
flagstr = lacp_state_flags_to_str(tvb_get_guint8(tvb, offset));
ti = proto_tree_add_string(lacp_tree, hf_lacp_actor_state_str, tvb, offset, 1, flagstr);
proto_item_set_generated(ti);
offset += 1;
proto_tree_add_item(lacp_tree, hf_lacp_actor_reserved, tvb, offset, 3, ENC_NA);
offset += 3;
col_append_fstr(pinfo->cinfo, COL_INFO, " ACTOR %s P: %d K: %d %s", sysidstr, port, key, flagstr);
/* Partner */
tlv_type_item = proto_tree_add_item_ret_uint(lacp_tree, hf_lacp_tlv_type, tvb, offset, 1, ENC_BIG_ENDIAN, &tlv_type);
offset += 1;
tlv_length_item = proto_tree_add_item_ret_uint(lacp_tree, hf_lacp_tlv_length, tvb, offset, 1, ENC_BIG_ENDIAN, &tlv_length);
offset += 1;
if (tlv_type != LACPDU_TYPE_PARTNER_INFORMATION) {
expert_add_info(pinfo, tlv_type_item, &ei_lacp_wrong_tlv_type);
}
if (tlv_length != 20) {
expert_add_info(pinfo, tlv_length_item, &ei_lacp_wrong_tlv_length);
}
proto_tree_add_item(lacp_tree, hf_lacp_partner_sysid_priority, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(lacp_tree, hf_lacp_partner_sysid, tvb, offset, 6, ENC_NA);
sysidstr = tvb_ether_to_str(tvb, offset);
offset += 6;
proto_tree_add_item_ret_uint(lacp_tree, hf_lacp_partner_key, tvb, offset, 2, ENC_BIG_ENDIAN, &key);
offset += 2;
proto_tree_add_item(lacp_tree, hf_lacp_partner_port_priority, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item_ret_uint(lacp_tree, hf_lacp_partner_port, tvb, offset, 2, ENC_BIG_ENDIAN, &port);
offset += 2;
proto_tree_add_bitmask_with_flags(lacp_tree, tvb, offset, hf_lacp_partner_state, ett_lacp_p_flags, partner_flags, ENC_NA, BMT_NO_INT|BMT_NO_TFS|BMT_NO_FALSE);
flagstr = lacp_state_flags_to_str(tvb_get_guint8(tvb, offset));
ti = proto_tree_add_string(lacp_tree, hf_lacp_partner_state_str, tvb, offset, 1, flagstr);
proto_item_set_generated(ti);
offset += 1;
proto_tree_add_item(lacp_tree, hf_lacp_partner_reserved, tvb, offset, 3, ENC_NA);
offset += 3;
col_append_fstr(pinfo->cinfo, COL_INFO, " PARTNER %s P: %d K: %d %s", sysidstr, port, key, flagstr);
/* Collector */
tlv_type_item = proto_tree_add_item_ret_uint(lacp_tree, hf_lacp_tlv_type, tvb, offset, 1, ENC_BIG_ENDIAN, &tlv_type);
offset += 1;
tlv_length_item = proto_tree_add_item_ret_uint(lacp_tree, hf_lacp_tlv_length, tvb, offset, 1, ENC_BIG_ENDIAN, &tlv_length);
offset += 1;
if (tlv_type != LACPDU_TYPE_COLLECTOR_INFORMATION) {
expert_add_info(pinfo, tlv_type_item, &ei_lacp_wrong_tlv_type);
}
if (tlv_length != 16) {
expert_add_info(pinfo, tlv_length_item, &ei_lacp_wrong_tlv_length);
}
proto_tree_add_item(lacp_tree, hf_lacp_coll_max_delay, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(lacp_tree, hf_lacp_coll_reserved, tvb, offset, 12, ENC_NA);
offset += 12;
/* col_append_fstr(pinfo->cinfo, COL_INFO, " COLLECTOR"); */
/* Other TLVs (LACP version 2) */
proto_tree_add_item_ret_uint(lacp_tree, hf_lacp_tlv_type, tvb, offset, 1, ENC_BIG_ENDIAN, &tlv_type);
offset += 1;
tlv_length_item = proto_tree_add_item_ret_uint(lacp_tree, hf_lacp_tlv_length, tvb, offset, 1, ENC_BIG_ENDIAN, &tlv_length);
offset += 1;
while (tlv_type != LACPDU_TYPE_TERMINATOR && tlv_length >= 2) {
offset += (tlv_length - 2);
proto_tree_add_item_ret_uint(lacp_tree, hf_lacp_tlv_type, tvb, offset, 1, ENC_BIG_ENDIAN, &tlv_type);
offset += 1;
tlv_length_item = proto_tree_add_item_ret_uint(lacp_tree, hf_lacp_tlv_length, tvb, offset, 1, ENC_BIG_ENDIAN, &tlv_length);
offset += 1;
}
/* Terminator - already handled */
if (tlv_length != 0) {
expert_add_info(pinfo, tlv_length_item, &ei_lacp_wrong_tlv_length);
}
/* Pad */
if (offset < (128 - 1 - 18)) { /* LACPv1 fixed size - Eth */
proto_tree_add_item(lacp_tree, hf_lacp_pad, tvb, offset, (128 - 1 - 18)-offset, ENC_NA);
offset += ((128 - 1 - 18)-offset);
}
/* HP specific stuff (in violation of standard) */
length_remaining = tvb_reported_length_remaining(tvb, offset);
if (length_remaining) {
/* HP LACP MAD IRF, first bytes is always 0x64 and second bytes is the rest of length */
if (length_remaining > 2 && (tvb_get_guint8(tvb, offset) == 0x64) && ((length_remaining -2) == tvb_get_guint8(tvb, offset+1)) )
{
proto_tree_add_item(lacp_tree, hf_lacp_vendor, tvb, offset, length_remaining, ENC_NA);
proto_tree_add_item(lacp_tree, hf_lacp_vendor_hp_unknown, tvb, offset, 1, ENC_NA);
offset += 1;
proto_tree_add_item(lacp_tree, hf_lacp_vendor_hp_length, tvb, offset, 1, ENC_NA);
offset += 1;
proto_tree_add_item(lacp_tree, hf_lacp_vendor_hp_unknown, tvb, offset, 2, ENC_NA);
offset += 2;
proto_tree_add_item(lacp_tree, hf_lacp_vendor_hp_irf_domain, tvb, offset, 2, ENC_NA);
offset += 2;
proto_tree_add_item(lacp_tree, hf_lacp_vendor_hp_irf_mac, tvb, offset, 6, ENC_NA);
offset += 6;
proto_tree_add_item(lacp_tree, hf_lacp_vendor_hp_unknown, tvb, offset, 8, ENC_NA);
offset += 8;
proto_tree_add_item(lacp_tree, hf_lacp_vendor_hp_irf_switch, tvb, offset, 2, ENC_NA);
offset += 2;
proto_tree_add_item(lacp_tree, hf_lacp_vendor_hp_irf_port, tvb, offset, 2, ENC_NA);
offset += 2;
proto_tree_add_item(lacp_tree, hf_lacp_vendor_hp_unknown, tvb, offset, 2, ENC_NA);
} else {
/* Not the HP specific extras. Don't claim the remaining data. It may actually be an ethernet trailer. */
set_actual_length(tvb, tvb_captured_length(tvb) - length_remaining);
proto_item_set_len(lacp_item, tvb_captured_length(tvb));
}
}
return tvb_captured_length(tvb);
}
/* Register the protocol with Wireshark */
void
proto_register_lacp(void)
{
/* Setup list of header fields */
static hf_register_info hf[] = {
{ &hf_lacp_vlacp_subtype,
{ "vLACP subtype", "lacp.vlacp_subtype",
FT_UINT8, BASE_DEC, NULL, 0x0,
"Avaya vlacp unused lacp subtype byte", HFILL }},
{ &hf_lacp_version,
{ "LACP Version", "lacp.version",
FT_UINT8, BASE_HEX, NULL, 0x0,
NULL, HFILL }},
{ &hf_lacp_tlv_type,
{ "TLV Type", "lacp.tlv_type",
FT_UINT8, BASE_HEX, VALS(lacp_type_vals), 0x0,
NULL, HFILL }},
{ &hf_lacp_tlv_length,
{ "TLV Length", "lacp.tlv_length",
FT_UINT8, BASE_HEX, NULL, 0x0,
NULL, HFILL }},
{ &hf_lacp_actor_sysid_priority,
{ "Actor System Priority", "lacp.actor.sys_priority",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }},
{ &hf_lacp_actor_sysid,
{ "Actor System ID", "lacp.actor.sysid",
FT_ETHER, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_lacp_actor_key,
{ "Actor Key", "lacp.actor.key",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }},
{ &hf_lacp_actor_port_priority,
{ "Actor Port Priority", "lacp.actor.port_priority",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }},
{ &hf_lacp_actor_port,
{ "Actor Port", "lacp.actor.port",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }},
{ &hf_lacp_actor_state,
{ "Actor State", "lacp.actor.state",
FT_UINT8, BASE_HEX, NULL, 0x0,
NULL, HFILL }},
{ &hf_lacp_actor_state_str,
{ "Actor State Flags", "lacp.actor.state_str",
FT_STRING, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_lacp_flags_a_activity,
{ "LACP Activity", "lacp.actor.state.activity",
FT_BOOLEAN, 8, TFS(&tfs_active_passive), LACPDU_FLAGS_ACTIVITY,
NULL, HFILL }},
{ &hf_lacp_flags_a_timeout,
{ "LACP Timeout", "lacp.actor.state.timeout",
FT_BOOLEAN, 8, TFS(&tfs_short_long_timeout), LACPDU_FLAGS_TIMEOUT,
NULL, HFILL }},
{ &hf_lacp_flags_a_aggregation,
{ "Aggregation", "lacp.actor.state.aggregation",
FT_BOOLEAN, 8, TFS(&tfs_aggregatable_individual), LACPDU_FLAGS_AGGREGATION,
NULL, HFILL }},
{ &hf_lacp_flags_a_sync,
{ "Synchronization", "lacp.actor.state.synchronization",
FT_BOOLEAN, 8, TFS(&tfs_in_sync_out_sync), LACPDU_FLAGS_SYNC,
NULL, HFILL }},
{ &hf_lacp_flags_a_collecting,
{ "Collecting", "lacp.actor.state.collecting",
FT_BOOLEAN, 8, TFS(&tfs_enabled_disabled), LACPDU_FLAGS_COLLECTING,
NULL, HFILL }},
{ &hf_lacp_flags_a_distrib,
{ "Distributing", "lacp.actor.state.distributing",
FT_BOOLEAN, 8, TFS(&tfs_enabled_disabled), LACPDU_FLAGS_DISTRIB,
NULL, HFILL }},
{ &hf_lacp_flags_a_defaulted,
{ "Defaulted", "lacp.actor.state.defaulted",
FT_BOOLEAN, 8, TFS(&tfs_yes_no), LACPDU_FLAGS_DEFAULTED,
"1 = Actor Rx machine is using DEFAULT Partner info, 0 = using info in Rx'd LACPDU", HFILL }},
{ &hf_lacp_flags_a_expired,
{ "Expired", "lacp.actor.state.expired",
FT_BOOLEAN, 8, TFS(&tfs_yes_no), LACPDU_FLAGS_EXPIRED,
NULL, HFILL }},
{ &hf_lacp_actor_reserved,
{ "Reserved", "lacp.actor.reserved",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_lacp_partner_sysid_priority,
{ "Partner System Priority", "lacp.partner.sys_priority",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }},
{ &hf_lacp_partner_sysid,
{ "Partner System", "lacp.partner.sysid",
FT_ETHER, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_lacp_partner_key,
{ "Partner Key", "lacp.partner.key",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }},
{ &hf_lacp_partner_port_priority,
{ "Partner Port Priority", "lacp.partner.port_priority",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }},
{ &hf_lacp_partner_port,
{ "Partner Port", "lacp.partner.port",
FT_UINT16, BASE_DEC, NULL, 0x0,
"The port number associated with this link assigned to the port by the Partner (via Management or Admin)", HFILL }},
{ &hf_lacp_partner_state,
{ "Partner State", "lacp.partner.state",
FT_UINT8, BASE_HEX, NULL, 0x0,
NULL, HFILL }},
{ &hf_lacp_partner_state_str,
{ "Partner State Flags", "lacp.partner.state_str",
FT_STRING, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_lacp_flags_p_activity,
{ "LACP Activity", "lacp.partner.state.activity",
FT_BOOLEAN, 8, TFS(&tfs_active_passive), LACPDU_FLAGS_ACTIVITY,
NULL, HFILL }},
{ &hf_lacp_flags_p_timeout,
{ "LACP Timeout", "lacp.partner.state.timeout",
FT_BOOLEAN, 8, TFS(&tfs_short_long_timeout), LACPDU_FLAGS_TIMEOUT,
NULL, HFILL }},
{ &hf_lacp_flags_p_aggregation,
{ "Aggregation", "lacp.partner.state.aggregation",
FT_BOOLEAN, 8, TFS(&tfs_aggregatable_individual), LACPDU_FLAGS_AGGREGATION,
NULL, HFILL }},
{ &hf_lacp_flags_p_sync,
{ "Synchronization", "lacp.partner.state.synchronization",
FT_BOOLEAN, 8, TFS(&tfs_in_sync_out_sync), LACPDU_FLAGS_SYNC,
NULL, HFILL }},
{ &hf_lacp_flags_p_collecting,
{ "Collecting", "lacp.partner.state.collecting",
FT_BOOLEAN, 8, TFS(&tfs_enabled_disabled), LACPDU_FLAGS_COLLECTING,
NULL, HFILL }},
{ &hf_lacp_flags_p_distrib,
{ "Distributing", "lacp.partner.state.distributing",
FT_BOOLEAN, 8, TFS(&tfs_enabled_disabled), LACPDU_FLAGS_DISTRIB,
NULL, HFILL }},
{ &hf_lacp_flags_p_defaulted,
{ "Defaulted", "lacp.partner.state.defaulted",
FT_BOOLEAN, 8, TFS(&tfs_yes_no), LACPDU_FLAGS_DEFAULTED,
"1 = Actor Rx machine is using DEFAULT Partner info, 0 = using info in Rx'd LACPDU", HFILL }},
{ &hf_lacp_flags_p_expired,
{ "Expired", "lacp.partner.state.expired",
FT_BOOLEAN, 8, TFS(&tfs_yes_no), LACPDU_FLAGS_EXPIRED,
NULL, HFILL }},
{ &hf_lacp_partner_reserved,
{ "Reserved", "lacp.partner.reserved",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_lacp_coll_max_delay,
{ "Collector Max Delay", "lacp.collector.max_delay",
FT_UINT16, BASE_DEC, NULL, 0x0,
"The max delay of the station sending the LACPDU (in tens of usecs)", HFILL }},
{ &hf_lacp_coll_reserved,
{ "Reserved", "lacp.coll_reserved",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_lacp_pad,
{ "Pad", "lacp.pad",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_lacp_vendor,
{ "Unknown vendor", "lacp.vendor",
FT_BYTES, BASE_NONE, NULL, 0x0,
"Some extra bytes (Vendor Specific ?)", HFILL }},
/* HP IRF MAD LACP */
{ &hf_lacp_vendor_hp_length,
{ "Length", "lacp.vendor.hp.length",
FT_UINT16, BASE_DEC, NULL, 0x0,
"The length of HP TLV", HFILL }},
{ &hf_lacp_vendor_hp_irf_domain,
{ "IRF Domain", "lacp.vendor.hp.irf_domain",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }},
{ &hf_lacp_vendor_hp_irf_mac,
{ "IRF MAC", "lacp.vendor.hp.irf_mac",
FT_ETHER, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_lacp_vendor_hp_irf_switch,
{ "IRF Switch", "lacp.vendor.hp.irf_switch",
FT_UINT16, BASE_DEC, NULL, 0x0,
"Number of switch on the IRF stack", HFILL }},
{ &hf_lacp_vendor_hp_irf_port,
{ "IRF Port", "lacp.vendor.hp.irf_port",
FT_UINT16, BASE_DEC, NULL, 0x0,
"Stack ID where the LACP is attached", HFILL }},
{ &hf_lacp_vendor_hp_unknown,
{ "Unknown", "lacp.vendor.hp.unknown",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
};
/* Setup protocol subtree array */
static gint *ett[] = {
&ett_lacp,
&ett_lacp_a_flags,
&ett_lacp_p_flags,
};
static ei_register_info ei[] = {
{ &ei_lacp_wrong_tlv_type, { "lacp.wrong_tlv_type", PI_MALFORMED, PI_ERROR, "TLV is not expected type", EXPFILL }},
{ &ei_lacp_wrong_tlv_length, { "lacp.wrong_tlv_length", PI_MALFORMED, PI_ERROR, "TLV is not expected length", EXPFILL }},
};
expert_module_t* expert_lacp;
/* Register the protocol name and description */
proto_lacp = proto_register_protocol("LACP", "Link Aggregation Control Protocol", "lacp");
/* Required function calls to register the header fields and subtrees used */
proto_register_field_array(proto_lacp, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
expert_lacp = expert_register_protocol(proto_lacp);
expert_register_field_array(expert_lacp, ei, array_length(ei));
}
void
proto_reg_handoff_lacp(void)
{
dissector_handle_t lacp_handle;
lacp_handle = create_dissector_handle(dissect_lacp, proto_lacp);
dissector_add_uint("slow.subtype", LACP_SUBTYPE, lacp_handle);
dissector_add_uint("ethertype", ETHERTYPE_VLACP, lacp_handle);
}
/*
* Editor modelines - https://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 4
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* vi: set shiftwidth=4 tabstop=8 expandtab:
* :indentSize=4:tabSize=8:noTabs=true:
*/
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