![Guy Harris](/assets/img/avatar_default.png)
include of <resolv.h> in any system header file gets the system <resolv.h> (needed for builds on Tru64 with GTK+ 1.2[.x]). svn path=/trunk/; revision=11615
820 lines
26 KiB
C
820 lines
26 KiB
C
/* packet-slowprotocols.c
|
|
* Routines for EtherType (0x8809) Slow Protocols disassembly.
|
|
*
|
|
* $Id$
|
|
*
|
|
* Copyright 2002 Steve Housley <steve_housley@3com.com>
|
|
*
|
|
* Ethereal - Network traffic analyzer
|
|
* By Gerald Combs <gerald@ethereal.com>
|
|
* Copyright 1998 Gerald Combs
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
/* *** WARNING!! *** Only a dissector for LACPDU (Link Aggregation Control
|
|
* Protocol Data Unit) disassembly has currently been implemented.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
# include "config.h"
|
|
#endif
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <glib.h>
|
|
#include <epan/packet.h>
|
|
#include "etypes.h"
|
|
#include "llcsaps.h"
|
|
#include "ppptypes.h"
|
|
#include <epan/addr_resolv.h>
|
|
|
|
/* Offsets of fields within a LACPDU */
|
|
|
|
#define LACPDU_SUBTYPE 0
|
|
#define LACPDU_VERSION_NUMBER 1
|
|
|
|
#define LACPDU_ACTOR_TYPE 2
|
|
#define LACPDU_ACTOR_INFO_LEN 3
|
|
#define LACPDU_ACTOR_SYS_PRIORITY 4
|
|
#define LACPDU_ACTOR_SYSTEM 6
|
|
#define LACPDU_ACTOR_KEY 12
|
|
#define LACPDU_ACTOR_PORT_PRIORITY 14
|
|
#define LACPDU_ACTOR_PORT 16
|
|
#define LACPDU_ACTOR_STATE 18
|
|
#define LACPDU_ACTOR_RESERVED 19
|
|
|
|
#define LACPDU_PARTNER_TYPE 22
|
|
#define LACPDU_PARTNER_INFO_LEN 23
|
|
#define LACPDU_PARTNER_SYS_PRIORITY 24
|
|
#define LACPDU_PARTNER_SYSTEM 26
|
|
#define LACPDU_PARTNER_KEY 32
|
|
#define LACPDU_PARTNER_PORT_PRIORITY 34
|
|
#define LACPDU_PARTNER_PORT 36
|
|
#define LACPDU_PARTNER_STATE 38
|
|
#define LACPDU_PARTNER_RESERVED 39
|
|
|
|
#define LACPDU_COLL_TYPE 42
|
|
#define LACPDU_COLL_INFO_LEN 43
|
|
#define LACPDU_COLL_MAX_DELAY 44
|
|
#define LACPDU_COLL_RESERVED 46
|
|
|
|
#define LACPDU_TERM_TYPE 58
|
|
#define LACPDU_TERM_LEN 59
|
|
#define LACPDU_TERM_RESERVED 60
|
|
|
|
/* 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_lacpdu = -1;
|
|
|
|
static int hf_lacpdu_subtype = -1;
|
|
static int hf_lacpdu_version_number = -1;
|
|
|
|
static int hf_lacpdu_actor_type = -1;
|
|
static int hf_lacpdu_actor_info_len = -1;
|
|
static int hf_lacpdu_actor_sys_priority = -1;
|
|
static int hf_lacpdu_actor_sys = -1;
|
|
static int hf_lacpdu_actor_key = -1;
|
|
static int hf_lacpdu_actor_port_priority = -1;
|
|
static int hf_lacpdu_actor_port = -1;
|
|
static int hf_lacpdu_actor_state = -1;
|
|
static int hf_lacpdu_flags_a_activity = -1;
|
|
static int hf_lacpdu_flags_a_timeout = -1;
|
|
static int hf_lacpdu_flags_a_aggregation = -1;
|
|
static int hf_lacpdu_flags_a_sync = -1;
|
|
static int hf_lacpdu_flags_a_collecting = -1;
|
|
static int hf_lacpdu_flags_a_distrib = -1;
|
|
static int hf_lacpdu_flags_a_defaulted = -1;
|
|
static int hf_lacpdu_flags_a_expired = -1;
|
|
static int hf_lacpdu_actor_reserved = -1;
|
|
|
|
static int hf_lacpdu_partner_type = -1;
|
|
static int hf_lacpdu_partner_info_len = -1;
|
|
static int hf_lacpdu_partner_sys_priority = -1;
|
|
static int hf_lacpdu_partner_sys = -1;
|
|
static int hf_lacpdu_partner_key = -1;
|
|
static int hf_lacpdu_partner_port_priority = -1;
|
|
static int hf_lacpdu_partner_port = -1;
|
|
static int hf_lacpdu_partner_state = -1;
|
|
static int hf_lacpdu_flags_p_activity = -1;
|
|
static int hf_lacpdu_flags_p_timeout = -1;
|
|
static int hf_lacpdu_flags_p_aggregation = -1;
|
|
static int hf_lacpdu_flags_p_sync = -1;
|
|
static int hf_lacpdu_flags_p_collecting = -1;
|
|
static int hf_lacpdu_flags_p_distrib = -1;
|
|
static int hf_lacpdu_flags_p_defaulted = -1;
|
|
static int hf_lacpdu_flags_p_expired = -1;
|
|
static int hf_lacpdu_partner_reserved = -1;
|
|
|
|
static int hf_lacpdu_coll_type = -1;
|
|
static int hf_lacpdu_coll_info_len = -1;
|
|
static int hf_lacpdu_coll_max_delay = -1;
|
|
static int hf_lacpdu_coll_reserved = -1;
|
|
|
|
static int hf_lacpdu_term_type = -1;
|
|
static int hf_lacpdu_term_len = -1;
|
|
static int hf_lacpdu_term_reserved = -1;
|
|
|
|
/* Initialise the subtree pointers */
|
|
|
|
static gint ett_lacpdu = -1;
|
|
static gint ett_lacpdu_a_flags = -1;
|
|
static gint ett_lacpdu_p_flags = -1;
|
|
|
|
/* General declarations and macros */
|
|
|
|
#define LACP_SUBTYPE 0x1
|
|
|
|
static const char initial_sep[] = " (";
|
|
static const char cont_sep[] = ", ";
|
|
|
|
#define APPEND_BOOLEAN_FLAG(flag, item, string) \
|
|
if(flag){ \
|
|
if(item) \
|
|
proto_item_append_text(item, string, sep); \
|
|
sep = cont_sep; \
|
|
}
|
|
|
|
/* Code to actually dissect the LACPDU packets */
|
|
static void
|
|
dissect_lacpdu(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
guint16 raw_word;
|
|
guint8 raw_octet;
|
|
|
|
guint8 flags;
|
|
|
|
const guint8 *a_sys;
|
|
const guint8 *p_sys;
|
|
const guint8 *resv_bytes;
|
|
|
|
proto_tree *lacpdu_tree;
|
|
proto_item *lacpdu_item;
|
|
proto_tree *actor_flags_tree;
|
|
proto_item *actor_flags_item;
|
|
proto_tree *partner_flags_tree;
|
|
proto_item *partner_flags_item;
|
|
|
|
|
|
const char *sep;
|
|
|
|
|
|
if (check_col(pinfo->cinfo, COL_PROTOCOL))
|
|
{
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "LACP"); /* LACP Protocol */
|
|
}
|
|
|
|
if (check_col(pinfo->cinfo, COL_INFO))
|
|
{
|
|
col_clear(pinfo->cinfo, COL_INFO);
|
|
}
|
|
|
|
if (tree)
|
|
{
|
|
/* Add LACP Heading */
|
|
lacpdu_item = proto_tree_add_protocol_format(tree, proto_lacpdu, tvb,
|
|
0, -1, "Link Aggregation Control Protocol");
|
|
lacpdu_tree = proto_item_add_subtree(lacpdu_item, ett_lacpdu);
|
|
|
|
/* Version Number */
|
|
raw_octet = tvb_get_guint8(tvb, LACPDU_VERSION_NUMBER);
|
|
proto_tree_add_uint(lacpdu_tree, hf_lacpdu_version_number, tvb,
|
|
LACPDU_VERSION_NUMBER, 1, raw_octet);
|
|
|
|
if (check_col(pinfo->cinfo, COL_INFO))
|
|
{
|
|
col_append_fstr(pinfo->cinfo, COL_INFO, "Version %d. ", raw_octet);
|
|
}
|
|
|
|
/* Actor Type */
|
|
raw_octet = tvb_get_guint8(tvb, LACPDU_ACTOR_TYPE);
|
|
proto_tree_add_uint(lacpdu_tree, hf_lacpdu_actor_type, tvb,
|
|
LACPDU_ACTOR_TYPE, 1, raw_octet);
|
|
|
|
/* Actor Info Length */
|
|
raw_octet = tvb_get_guint8(tvb, LACPDU_ACTOR_INFO_LEN);
|
|
proto_tree_add_uint(lacpdu_tree, hf_lacpdu_actor_info_len, tvb,
|
|
LACPDU_ACTOR_INFO_LEN, 1, raw_octet);
|
|
|
|
/* Actor System Priority */
|
|
|
|
raw_word = tvb_get_ntohs(tvb, LACPDU_ACTOR_SYS_PRIORITY);
|
|
proto_tree_add_uint(lacpdu_tree, hf_lacpdu_actor_sys_priority, tvb,
|
|
LACPDU_ACTOR_SYS_PRIORITY, 2, raw_word);
|
|
/* Actor System */
|
|
|
|
a_sys = tvb_get_ptr(tvb, LACPDU_ACTOR_SYSTEM , 6);
|
|
proto_tree_add_ether(lacpdu_tree, hf_lacpdu_actor_sys, tvb,
|
|
LACPDU_ACTOR_SYSTEM, 6, a_sys);
|
|
|
|
/* Actor Key */
|
|
|
|
raw_word = tvb_get_ntohs(tvb, LACPDU_ACTOR_KEY);
|
|
proto_tree_add_uint(lacpdu_tree, hf_lacpdu_actor_key, tvb,
|
|
LACPDU_ACTOR_KEY, 2, raw_word);
|
|
|
|
/* Actor Port Priority */
|
|
|
|
raw_word = tvb_get_ntohs(tvb, LACPDU_ACTOR_PORT_PRIORITY);
|
|
proto_tree_add_uint(lacpdu_tree, hf_lacpdu_actor_port_priority, tvb,
|
|
LACPDU_ACTOR_PORT_PRIORITY, 2, raw_word);
|
|
|
|
/* Actor Port */
|
|
|
|
raw_word = tvb_get_ntohs(tvb, LACPDU_ACTOR_PORT);
|
|
proto_tree_add_uint(lacpdu_tree, hf_lacpdu_actor_port, tvb,
|
|
LACPDU_ACTOR_PORT, 2, raw_word);
|
|
|
|
if (check_col(pinfo->cinfo, COL_INFO))
|
|
{
|
|
col_append_fstr(pinfo->cinfo, COL_INFO, "Actor Port = %d ", raw_word);
|
|
}
|
|
|
|
/* Actor State */
|
|
|
|
flags = tvb_get_guint8(tvb, LACPDU_ACTOR_STATE);
|
|
actor_flags_item = proto_tree_add_uint(lacpdu_tree, hf_lacpdu_actor_state, tvb,
|
|
LACPDU_ACTOR_STATE, 1, flags);
|
|
actor_flags_tree = proto_item_add_subtree(actor_flags_item, ett_lacpdu_a_flags);
|
|
|
|
sep = initial_sep;
|
|
|
|
/* Activity Flag */
|
|
|
|
APPEND_BOOLEAN_FLAG(flags & LACPDU_FLAGS_ACTIVITY, actor_flags_item,
|
|
"%sActivity");
|
|
proto_tree_add_boolean(actor_flags_tree, hf_lacpdu_flags_a_activity, tvb,
|
|
LACPDU_ACTOR_STATE, 1, flags);
|
|
|
|
/* Timeout Flag */
|
|
|
|
APPEND_BOOLEAN_FLAG(flags & LACPDU_FLAGS_TIMEOUT, actor_flags_item,
|
|
"%sTimeout");
|
|
proto_tree_add_boolean(actor_flags_tree, hf_lacpdu_flags_a_timeout, tvb,
|
|
LACPDU_ACTOR_STATE, 1, flags);
|
|
|
|
/* Aggregation Flag */
|
|
|
|
APPEND_BOOLEAN_FLAG(flags & LACPDU_FLAGS_AGGREGATION, actor_flags_item,
|
|
"%sAggregation");
|
|
proto_tree_add_boolean(actor_flags_tree, hf_lacpdu_flags_a_aggregation, tvb,
|
|
LACPDU_ACTOR_STATE, 1, flags);
|
|
|
|
/* Synchronization Flag */
|
|
|
|
APPEND_BOOLEAN_FLAG(flags & LACPDU_FLAGS_SYNC, actor_flags_item,
|
|
"%sSynchronization");
|
|
proto_tree_add_boolean(actor_flags_tree, hf_lacpdu_flags_a_sync, tvb,
|
|
LACPDU_ACTOR_STATE, 1, flags);
|
|
|
|
/* Collecting Flag */
|
|
|
|
APPEND_BOOLEAN_FLAG(flags & LACPDU_FLAGS_COLLECTING, actor_flags_item,
|
|
"%sCollecting");
|
|
proto_tree_add_boolean(actor_flags_tree, hf_lacpdu_flags_a_collecting, tvb,
|
|
LACPDU_ACTOR_STATE, 1, flags);
|
|
|
|
|
|
/* Distributing Flag */
|
|
|
|
APPEND_BOOLEAN_FLAG(flags & LACPDU_FLAGS_DISTRIB, actor_flags_item,
|
|
"%sDistributing");
|
|
proto_tree_add_boolean(actor_flags_tree, hf_lacpdu_flags_a_distrib, tvb,
|
|
LACPDU_ACTOR_STATE, 1, flags);
|
|
|
|
/* Defaulted Flag */
|
|
|
|
APPEND_BOOLEAN_FLAG(flags & LACPDU_FLAGS_DEFAULTED, actor_flags_item,
|
|
"%sDefaulted");
|
|
proto_tree_add_boolean(actor_flags_tree, hf_lacpdu_flags_a_defaulted, tvb,
|
|
LACPDU_ACTOR_STATE, 1, flags);
|
|
|
|
/* Expired Flag */
|
|
|
|
APPEND_BOOLEAN_FLAG(flags & LACPDU_FLAGS_EXPIRED, actor_flags_item,
|
|
"%sExpired");
|
|
proto_tree_add_boolean(actor_flags_tree, hf_lacpdu_flags_a_expired, tvb,
|
|
LACPDU_ACTOR_STATE, 1, flags);
|
|
|
|
sep = cont_sep;
|
|
if (sep != initial_sep)
|
|
{
|
|
/* We put something in; put in the terminating ")" */
|
|
proto_item_append_text(actor_flags_item, ")");
|
|
}
|
|
|
|
/* Actor Reserved */
|
|
|
|
resv_bytes = tvb_get_ptr(tvb, LACPDU_ACTOR_RESERVED, 3);
|
|
proto_tree_add_bytes(lacpdu_tree, hf_lacpdu_actor_reserved, tvb,
|
|
LACPDU_ACTOR_RESERVED, 3, resv_bytes);
|
|
|
|
|
|
/* Partner Type */
|
|
raw_octet = tvb_get_guint8(tvb, LACPDU_PARTNER_TYPE);
|
|
proto_tree_add_uint(lacpdu_tree, hf_lacpdu_partner_type, tvb,
|
|
LACPDU_PARTNER_TYPE, 1, raw_octet);
|
|
|
|
/* Partner Info Length */
|
|
raw_octet = tvb_get_guint8(tvb, LACPDU_PARTNER_INFO_LEN);
|
|
proto_tree_add_uint(lacpdu_tree, hf_lacpdu_partner_info_len, tvb,
|
|
LACPDU_PARTNER_INFO_LEN, 1, raw_octet);
|
|
|
|
/* Partner System Priority */
|
|
|
|
raw_word = tvb_get_ntohs(tvb, LACPDU_PARTNER_SYS_PRIORITY);
|
|
proto_tree_add_uint(lacpdu_tree, hf_lacpdu_partner_sys_priority, tvb,
|
|
LACPDU_PARTNER_SYS_PRIORITY, 2, raw_word);
|
|
|
|
/* Partner System */
|
|
|
|
p_sys = tvb_get_ptr(tvb, LACPDU_PARTNER_SYSTEM, 6);
|
|
proto_tree_add_ether(lacpdu_tree, hf_lacpdu_partner_sys, tvb,
|
|
LACPDU_PARTNER_SYSTEM, 6, p_sys);
|
|
|
|
/* Partner Key */
|
|
|
|
raw_word = tvb_get_ntohs(tvb, LACPDU_PARTNER_KEY);
|
|
proto_tree_add_uint(lacpdu_tree, hf_lacpdu_partner_key, tvb,
|
|
LACPDU_PARTNER_KEY, 2, raw_word);
|
|
|
|
/* Partner Port Priority */
|
|
|
|
raw_word = tvb_get_ntohs(tvb, LACPDU_PARTNER_PORT_PRIORITY);
|
|
proto_tree_add_uint(lacpdu_tree, hf_lacpdu_partner_port_priority, tvb,
|
|
LACPDU_PARTNER_PORT_PRIORITY, 2, raw_word);
|
|
|
|
/* Partner Port */
|
|
|
|
raw_word = tvb_get_ntohs(tvb, LACPDU_PARTNER_PORT);
|
|
proto_tree_add_uint(lacpdu_tree, hf_lacpdu_partner_port, tvb,
|
|
LACPDU_PARTNER_PORT, 2, raw_word);
|
|
|
|
if (check_col(pinfo->cinfo, COL_INFO))
|
|
{
|
|
col_append_fstr(pinfo->cinfo, COL_INFO, "Partner Port = %d ", raw_word);
|
|
}
|
|
|
|
/* Partner State */
|
|
|
|
flags = tvb_get_guint8(tvb, LACPDU_PARTNER_STATE);
|
|
partner_flags_item = proto_tree_add_uint(lacpdu_tree, hf_lacpdu_partner_state, tvb,
|
|
LACPDU_PARTNER_STATE, 1, flags);
|
|
partner_flags_tree = proto_item_add_subtree(partner_flags_item, ett_lacpdu_p_flags);
|
|
|
|
sep = initial_sep;
|
|
|
|
/* Activity Flag */
|
|
|
|
APPEND_BOOLEAN_FLAG(flags & LACPDU_FLAGS_ACTIVITY, partner_flags_item,
|
|
"%sActivity");
|
|
proto_tree_add_boolean(partner_flags_tree, hf_lacpdu_flags_p_activity, tvb,
|
|
LACPDU_PARTNER_STATE, 1, flags);
|
|
|
|
/* Timeout Flag */
|
|
|
|
APPEND_BOOLEAN_FLAG(flags & LACPDU_FLAGS_TIMEOUT, partner_flags_item,
|
|
"%sTimeout");
|
|
proto_tree_add_boolean(partner_flags_tree, hf_lacpdu_flags_p_timeout, tvb,
|
|
LACPDU_PARTNER_STATE, 1, flags);
|
|
|
|
/* Aggregation Flag */
|
|
|
|
APPEND_BOOLEAN_FLAG(flags & LACPDU_FLAGS_AGGREGATION, partner_flags_item,
|
|
"%sAggregation");
|
|
proto_tree_add_boolean(partner_flags_tree, hf_lacpdu_flags_p_aggregation, tvb,
|
|
LACPDU_PARTNER_STATE, 1, flags);
|
|
|
|
/* Synchronization Flag */
|
|
|
|
APPEND_BOOLEAN_FLAG(flags & LACPDU_FLAGS_SYNC, partner_flags_item,
|
|
"%sSynchronization");
|
|
proto_tree_add_boolean(partner_flags_tree, hf_lacpdu_flags_p_sync, tvb,
|
|
LACPDU_PARTNER_STATE, 1, flags);
|
|
|
|
/* Collecting Flag */
|
|
|
|
APPEND_BOOLEAN_FLAG(flags & LACPDU_FLAGS_COLLECTING, partner_flags_item,
|
|
"%sCollecting");
|
|
proto_tree_add_boolean(partner_flags_tree, hf_lacpdu_flags_p_collecting, tvb,
|
|
LACPDU_PARTNER_STATE, 1, flags);
|
|
|
|
|
|
/* Distributing Flag */
|
|
|
|
APPEND_BOOLEAN_FLAG(flags & LACPDU_FLAGS_DISTRIB, partner_flags_item,
|
|
"%sDistributing");
|
|
proto_tree_add_boolean(partner_flags_tree, hf_lacpdu_flags_p_distrib, tvb,
|
|
LACPDU_PARTNER_STATE, 1, flags);
|
|
|
|
/* Defaulted Flag */
|
|
|
|
APPEND_BOOLEAN_FLAG(flags & LACPDU_FLAGS_DEFAULTED, partner_flags_item,
|
|
"%sDefaulted");
|
|
proto_tree_add_boolean(partner_flags_tree, hf_lacpdu_flags_p_defaulted, tvb,
|
|
LACPDU_PARTNER_STATE, 1, flags);
|
|
|
|
/* Expired Flag */
|
|
|
|
APPEND_BOOLEAN_FLAG(flags & LACPDU_FLAGS_EXPIRED, partner_flags_item,
|
|
"%sExpired");
|
|
proto_tree_add_boolean(partner_flags_tree, hf_lacpdu_flags_p_expired, tvb,
|
|
LACPDU_PARTNER_STATE, 1, flags);
|
|
|
|
sep = cont_sep;
|
|
if (sep != initial_sep)
|
|
{
|
|
/* We put something in; put in the terminating ")" */
|
|
proto_item_append_text(partner_flags_item, ")");
|
|
}
|
|
|
|
/* Partner Reserved */
|
|
|
|
resv_bytes = tvb_get_ptr(tvb, LACPDU_PARTNER_RESERVED, 3);
|
|
proto_tree_add_bytes(lacpdu_tree, hf_lacpdu_partner_reserved, tvb,
|
|
LACPDU_PARTNER_RESERVED, 3, resv_bytes);
|
|
|
|
|
|
/* Collector Type */
|
|
raw_octet = tvb_get_guint8(tvb, LACPDU_COLL_TYPE);
|
|
proto_tree_add_uint(lacpdu_tree, hf_lacpdu_coll_type, tvb,
|
|
LACPDU_COLL_TYPE, 1, raw_octet);
|
|
|
|
/* Collector Info Length */
|
|
raw_octet = tvb_get_guint8(tvb, LACPDU_COLL_INFO_LEN);
|
|
proto_tree_add_uint(lacpdu_tree, hf_lacpdu_coll_info_len, tvb,
|
|
LACPDU_COLL_INFO_LEN, 1, raw_octet);
|
|
|
|
/* Collector Max Delay */
|
|
|
|
raw_word = tvb_get_ntohs(tvb, LACPDU_COLL_MAX_DELAY);
|
|
proto_tree_add_uint(lacpdu_tree, hf_lacpdu_coll_max_delay, tvb,
|
|
LACPDU_COLL_MAX_DELAY, 2, raw_word);
|
|
|
|
/* Collector Reserved */
|
|
|
|
resv_bytes = tvb_get_ptr(tvb, LACPDU_COLL_RESERVED, 12);
|
|
proto_tree_add_bytes(lacpdu_tree, hf_lacpdu_coll_reserved, tvb,
|
|
LACPDU_COLL_RESERVED, 12, resv_bytes);
|
|
|
|
/* Terminator Type */
|
|
raw_octet = tvb_get_guint8(tvb, LACPDU_TERM_TYPE);
|
|
proto_tree_add_uint(lacpdu_tree, hf_lacpdu_term_type, tvb,
|
|
LACPDU_TERM_TYPE, 1, raw_octet);
|
|
|
|
/* Terminator Info Length */
|
|
raw_octet = tvb_get_guint8(tvb, LACPDU_TERM_LEN);
|
|
proto_tree_add_uint(lacpdu_tree, hf_lacpdu_term_len, tvb,
|
|
LACPDU_TERM_LEN, 1, raw_octet);
|
|
|
|
/* Terminator Reserved */
|
|
|
|
resv_bytes = tvb_get_ptr(tvb, LACPDU_TERM_RESERVED, 50);
|
|
proto_tree_add_bytes(lacpdu_tree, hf_lacpdu_term_reserved, tvb,
|
|
LACPDU_TERM_RESERVED, 50, resv_bytes);
|
|
}
|
|
}
|
|
|
|
|
|
/* Code to dissect the Slow Protocol packets */
|
|
static void
|
|
dissect_slow_protocols(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
guint8 raw_octet;
|
|
|
|
if (tree)
|
|
{
|
|
|
|
/* Get the Slow Protocol Subtype value */
|
|
raw_octet = tvb_get_guint8(tvb, LACPDU_SUBTYPE);
|
|
|
|
if (raw_octet != LACP_SUBTYPE)
|
|
{
|
|
/* This is not a LACPDU. Do not disassemble. */
|
|
/* Requires implementation at a later date. */
|
|
if (check_col(pinfo->cinfo, COL_PROTOCOL))
|
|
{
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "Slow Protocols"); /* Slow Protocols */
|
|
}
|
|
|
|
/* Display the subtype value to aid the user. */
|
|
if (check_col(pinfo->cinfo, COL_INFO))
|
|
{
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "Subtype = %u.", raw_octet);
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* This is a LACPDU so decode it! */
|
|
dissect_lacpdu(tvb, pinfo, tree);
|
|
}
|
|
|
|
|
|
|
|
/* Register the protocol with Ethereal */
|
|
|
|
static const value_string subtype_vals[] = {
|
|
{ 1, "LACP" },
|
|
{ 2, "Marker Protocol" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const true_false_string yesno = {
|
|
"Yes",
|
|
"No"
|
|
};
|
|
|
|
void
|
|
proto_register_lacpdu(void)
|
|
{
|
|
/* Setup list of header fields */
|
|
|
|
static hf_register_info hf[] = {
|
|
|
|
{ &hf_lacpdu_subtype,
|
|
{ "Subtype", "lacp.subtype",
|
|
FT_UINT8, BASE_HEX, VALS(subtype_vals), 0x0,
|
|
"The specific Slow Protocol being used", HFILL }},
|
|
|
|
{ &hf_lacpdu_version_number,
|
|
{ "LACP Version Number", "lacp.version",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0,
|
|
"Identifies the LACP version", HFILL }},
|
|
|
|
{ &hf_lacpdu_actor_type,
|
|
{ "Actor Information", "lacp.actorInfo",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0,
|
|
"TLV type = Actor", HFILL }},
|
|
|
|
{ &hf_lacpdu_actor_info_len,
|
|
{ "Actor Information Length", "lacp.actorInfoLen",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0,
|
|
"The length of the Actor TLV", HFILL }},
|
|
|
|
{ &hf_lacpdu_actor_sys_priority,
|
|
{ "Actor System Priority", "lacp.actorSysPriority",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
"The priority assigned to this System by management or admin", HFILL }},
|
|
|
|
{ &hf_lacpdu_actor_sys,
|
|
{ "Actor System", "lacp.actorSystem",
|
|
FT_ETHER, BASE_NONE, NULL, 0x0,
|
|
"The Actor's System ID encoded as a MAC address", HFILL }},
|
|
|
|
{ &hf_lacpdu_actor_key,
|
|
{ "Actor Key", "lacp.actorKey",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
"The operational Key value assigned to the port by the Actor", HFILL }},
|
|
|
|
{ &hf_lacpdu_actor_port_priority,
|
|
{ "Actor Port Priority", "lacp.actorPortPriority",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
"The priority assigned to the port by the Actor (via Management or Admin)", HFILL }},
|
|
|
|
{ &hf_lacpdu_actor_port,
|
|
{ "Actor Port", "lacp.actorPort",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
"The port number assigned to the port by the Actor (via Management or Admin)", HFILL }},
|
|
|
|
{ &hf_lacpdu_actor_state,
|
|
{ "Actor State", "lacp.actorState",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0,
|
|
"The Actor's state variables for the port, encoded as bits within a single octet", HFILL }},
|
|
|
|
{ &hf_lacpdu_flags_a_activity,
|
|
{ "LACP Activity", "lacp.actorState.activity",
|
|
FT_BOOLEAN, 8, TFS(&yesno), LACPDU_FLAGS_ACTIVITY,
|
|
"Activity control value for this link. Active = 1, Passive = 0", HFILL }},
|
|
|
|
{ &hf_lacpdu_flags_a_timeout,
|
|
{ "LACP Timeout", "lacp.actorState.timeout",
|
|
FT_BOOLEAN, 8, TFS(&yesno), LACPDU_FLAGS_TIMEOUT,
|
|
"Timeout control value for this link. Short Timeout = 1, Long Timeout = 0", HFILL }},
|
|
|
|
|
|
{ &hf_lacpdu_flags_a_aggregation,
|
|
{ "Aggregation", "lacp.actorState.aggregation",
|
|
FT_BOOLEAN, 8, TFS(&yesno), LACPDU_FLAGS_AGGREGATION,
|
|
"Aggregatable = 1, Individual = 0", HFILL }},
|
|
|
|
|
|
{ &hf_lacpdu_flags_a_sync,
|
|
{ "Synchronization", "lacp.actorState.synchronization",
|
|
FT_BOOLEAN, 8, TFS(&yesno), LACPDU_FLAGS_SYNC,
|
|
"In Sync = 1, Out of Sync = 0", HFILL }},
|
|
|
|
|
|
{ &hf_lacpdu_flags_a_collecting,
|
|
{ "Collecting", "lacp.actorState.collecting",
|
|
FT_BOOLEAN, 8, TFS(&yesno), LACPDU_FLAGS_COLLECTING,
|
|
"Collection of incoming frames is: Enabled = 1, Disabled = 0", HFILL }},
|
|
|
|
|
|
{ &hf_lacpdu_flags_a_distrib,
|
|
{ "Distributing", "lacp.actorState.distributing",
|
|
FT_BOOLEAN, 8, TFS(&yesno), LACPDU_FLAGS_DISTRIB,
|
|
"Distribution of outgoing frames is: Enabled = 1, Disabled = 0", HFILL }},
|
|
|
|
|
|
|
|
{ &hf_lacpdu_flags_a_defaulted,
|
|
{ "Defaulted", "lacp.actorState.defaulted",
|
|
FT_BOOLEAN, 8, TFS(&yesno), LACPDU_FLAGS_DEFAULTED,
|
|
"1 = Actor Rx machine is using DEFAULT Partner info, 0 = using info in Rx'd LACPDU", HFILL }},
|
|
|
|
|
|
{ &hf_lacpdu_flags_a_expired,
|
|
{ "Expired", "lacp.actorState.expired",
|
|
FT_BOOLEAN, 8, TFS(&yesno), LACPDU_FLAGS_EXPIRED,
|
|
"1 = Actor Rx machine is EXPIRED, 0 = is NOT EXPIRED", HFILL }},
|
|
|
|
|
|
{ &hf_lacpdu_actor_reserved,
|
|
{ "Reserved", "lacp.reserved",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
|
|
{ &hf_lacpdu_partner_type,
|
|
{ "Partner Information", "lacp.partnerInfo",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0,
|
|
"TLV type = Partner", HFILL }},
|
|
|
|
{ &hf_lacpdu_partner_info_len,
|
|
{ "Partner Information Length", "lacp.partnerInfoLen",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0,
|
|
"The length of the Partner TLV", HFILL }},
|
|
|
|
{ &hf_lacpdu_partner_sys_priority,
|
|
{ "Partner System Priority", "lacp.partnerSysPriority",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
"The priority assigned to the Partner System by management or admin", HFILL }},
|
|
|
|
{ &hf_lacpdu_partner_sys,
|
|
{ "Partner System", "lacp.partnerSystem",
|
|
FT_ETHER, BASE_NONE, NULL, 0x0,
|
|
"The Partner's System ID encoded as a MAC address", HFILL }},
|
|
|
|
{ &hf_lacpdu_partner_key,
|
|
{ "Partner Key", "lacp.partnerKey",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
"The operational Key value assigned to the port associated with this link by the Partner", HFILL }},
|
|
|
|
{ &hf_lacpdu_partner_port_priority,
|
|
{ "Partner Port Priority", "lacp.partnerPortPriority",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
"The priority assigned to the port by the Partner (via Management or Admin)", HFILL }},
|
|
|
|
{ &hf_lacpdu_partner_port,
|
|
{ "Partner Port", "lacp.partnerPort",
|
|
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_lacpdu_partner_state,
|
|
{ "Partner State", "lacp.partnerState",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0,
|
|
"The Partner's state variables for the port, encoded as bits within a single octet", HFILL }},
|
|
|
|
{ &hf_lacpdu_flags_p_activity,
|
|
{ "LACP Activity", "lacp.partnerState.activity",
|
|
FT_BOOLEAN, 8, TFS(&yesno), LACPDU_FLAGS_ACTIVITY,
|
|
"Activity control value for this link. Active = 1, Passive = 0", HFILL }},
|
|
|
|
{ &hf_lacpdu_flags_p_timeout,
|
|
{ "LACP Timeout", "lacp.partnerState.timeout",
|
|
FT_BOOLEAN, 8, TFS(&yesno), LACPDU_FLAGS_TIMEOUT,
|
|
"Timeout control value for this link. Short Timeout = 1, Long Timeout = 0", HFILL }},
|
|
|
|
|
|
{ &hf_lacpdu_flags_p_aggregation,
|
|
{ "Aggregation", "lacp.partnerState.aggregation",
|
|
FT_BOOLEAN, 8, TFS(&yesno), LACPDU_FLAGS_AGGREGATION,
|
|
"Aggregatable = 1, Individual = 0", HFILL }},
|
|
|
|
|
|
{ &hf_lacpdu_flags_p_sync,
|
|
{ "Synchronization", "lacp.partnerState.synchronization",
|
|
FT_BOOLEAN, 8, TFS(&yesno), LACPDU_FLAGS_SYNC,
|
|
"In Sync = 1, Out of Sync = 0", HFILL }},
|
|
|
|
|
|
{ &hf_lacpdu_flags_p_collecting,
|
|
{ "Collecting", "lacp.partnerState.collecting",
|
|
FT_BOOLEAN, 8, TFS(&yesno), LACPDU_FLAGS_COLLECTING,
|
|
"Collection of incoming frames is: Enabled = 1, Disabled = 0", HFILL }},
|
|
|
|
|
|
{ &hf_lacpdu_flags_p_distrib,
|
|
{ "Distributing", "lacp.partnerState.distributing",
|
|
FT_BOOLEAN, 8, TFS(&yesno), LACPDU_FLAGS_DISTRIB,
|
|
"Distribution of outgoing frames is: Enabled = 1, Disabled = 0", HFILL }},
|
|
|
|
|
|
|
|
{ &hf_lacpdu_flags_p_defaulted,
|
|
{ "Defaulted", "lacp.partnerState.defaulted",
|
|
FT_BOOLEAN, 8, TFS(&yesno), LACPDU_FLAGS_DEFAULTED,
|
|
"1 = Actor Rx machine is using DEFAULT Partner info, 0 = using info in Rx'd LACPDU", HFILL }},
|
|
|
|
|
|
{ &hf_lacpdu_flags_p_expired,
|
|
{ "Expired", "lacp.partnerState.expired",
|
|
FT_BOOLEAN, 8, TFS(&yesno), LACPDU_FLAGS_EXPIRED,
|
|
"1 = Actor Rx machine is EXPIRED, 0 = is NOT EXPIRED", HFILL }},
|
|
|
|
|
|
{ &hf_lacpdu_partner_reserved,
|
|
{ "Reserved", "lacp.reserved",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
|
|
{ &hf_lacpdu_coll_type,
|
|
{ "Collector Information", "lacp.collectorInfo",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0,
|
|
"TLV type = Collector", HFILL }},
|
|
|
|
{ &hf_lacpdu_coll_info_len,
|
|
{ "Collector Information Length", "lacp.collectorInfoLen",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0,
|
|
"The length of the Collector TLV", HFILL }},
|
|
|
|
{ &hf_lacpdu_coll_max_delay,
|
|
{ "Collector Max Delay", "lacp.collectorMaxDelay",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
"The max delay of the station tx'ing the LACPDU (in tens of usecs)", HFILL }},
|
|
|
|
{ &hf_lacpdu_coll_reserved,
|
|
{ "Reserved", "lacp.reserved",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
|
|
|
|
{ &hf_lacpdu_term_type,
|
|
{ "Terminator Information", "lacp.termInfo",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0,
|
|
"TLV type = Terminator", HFILL }},
|
|
|
|
{ &hf_lacpdu_term_len,
|
|
{ "Terminator Length", "lacp.termLen",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0,
|
|
"The length of the Terminator TLV", HFILL }},
|
|
|
|
{ &hf_lacpdu_term_reserved,
|
|
{ "Reserved", "lacp.reserved",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
|
|
};
|
|
|
|
/* Setup protocol subtree array */
|
|
|
|
static gint *ett[] = {
|
|
&ett_lacpdu,
|
|
&ett_lacpdu_a_flags,
|
|
&ett_lacpdu_p_flags,
|
|
};
|
|
|
|
/* Register the protocol name and description */
|
|
|
|
proto_lacpdu = proto_register_protocol("Link Aggregation Control Protocol", "LACP", "lacp");
|
|
|
|
/* Required function calls to register the header fields and subtrees used */
|
|
|
|
proto_register_field_array(proto_lacpdu, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
|
|
}
|
|
|
|
|
|
void
|
|
proto_reg_handoff_lacpdu(void)
|
|
{
|
|
dissector_handle_t slow_protocols_handle;
|
|
|
|
slow_protocols_handle = create_dissector_handle(dissect_slow_protocols, proto_lacpdu);
|
|
dissector_add("ethertype", ETHERTYPE_SLOW_PROTOCOLS, slow_protocols_handle);
|
|
}
|