From Torrey Atcitty: IEEE 1722(AVB Transport Protocol) Dissector
See Bug #4764 (https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=4764) svn path=/trunk/; revision=32841
This commit is contained in:
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6
AUTHORS
6
AUTHORS
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@ -3036,16 +3036,22 @@ Robert Hogan <robert [AT] roberthogan.net> {
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Torrey Atcitty <torrey.atcitty [AT] harman.com> {
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PTP dissector: Added support for 802.1AS D7.0
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IEEE 802.1Qat (Multiple Stream Reservation Protocol) dissector
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IEEE 1722(AVB Transport Protocol) dissector
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}
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Dave Olsen <dave.olsen [AT] harman.com> {
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PTP dissector: Added support for 802.1AS D7.0
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IEEE 1722(AVB Transport Protocol) dissector
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}
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Craig Gunther <craig.gunther [AT] harman.com> {
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IEEE 802.1Qat (Multiple Stream Reservation Protocol) dissector
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}
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Levi Pearson <levi.pearson [AT] harman.com> {
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IEEE 1722(AVB Transport Protocol) dissector
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}
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and by:
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@ -627,6 +627,7 @@ set(DISSECTOR_SRC
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dissectors/packet-icq.c
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dissectors/packet-idp.c
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dissectors/packet-iec104.c
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dissectors/packet-ieee1722.c
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dissectors/packet-ieee80211.c
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dissectors/packet-ieee802154.c
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dissectors/packet-ieee8021ah.c
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@ -532,6 +532,7 @@ DISSECTOR_SRC = \
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packet-icq.c \
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packet-idp.c \
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packet-iec104.c \
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packet-ieee1722.c \
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packet-ieee80211.c \
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packet-ieee802154.c \
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packet-ieee8021ah.c \
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@ -104,6 +104,7 @@ const value_string etype_vals[] = {
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{ ETHERTYPE_ETHBRIDGE, "Transparent Ethernet bridging" },
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{ ETHERTYPE_CGMP, "Cisco Group Management Protocol" },
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{ ETHERTYPE_MSRP, "802.1Qat Multiple Stream Reservation Protocol" },
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{ ETHERTYPE_AVBTP, "IEEE 1722 Audio Video Bridging Transport Protocol" },
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{ ETHERTYPE_MAC_CONTROL, "MAC Control" },
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{ ETHERTYPE_SLOW_PROTOCOLS, "Slow Protocols" },
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{ ETHERTYPE_RTMAC, "Real-Time Media Access Control" },
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@ -0,0 +1,384 @@
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/* packet-ieee1722.c
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* Routines for AVB-TP (Audio Video Bridging - Transport Protocol) dissection
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* Copyright 2010, Torrey Atcitty <tatcitty@harman.com>
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* Dave Olsen <dave.olsen@harman.com>
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* Levi Pearson <levi.pearson@harman.com>
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*
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* $Id$
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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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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* The 1722 Protocol specification can be found at the following:
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* http://grouper.ieee.org/groups/1722/
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*
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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 <epan/packet.h>
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#include <epan/etypes.h>
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/* 1722 Offsets */
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#define IEEE_1722_CD_OFFSET 0
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#define IEEE_1722_VERSION_OFFSET 1
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#define IEEE_1722_SEQ_NUM_OFFSET 2
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#define IEEE_1722_TU_FIELD_OFFSET 3
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#define IEEE_1722_STREAM_ID_OFFSET 4
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#define IEEE_1722_TIMESTAMP_OFFSET 12
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#define IEEE_1722_GW_INFO_OFFSET 16
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#define IEEE_1722_PKT_DATA_LENGTH_OFFSET 20
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#define IEEE_1722_TAG_OFFSET 22
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#define IEEE_1722_TCODE_OFFSET 23
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#define IEEE_1722_SID_OFFSET 24
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#define IEEE_1722_DBS_OFFSET 25
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#define IEEE_1722_FN_OFFSET 26
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#define IEEE_1722_DBC_OFFSET 27
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#define IEEE_1722_FMT_OFFSET 28
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#define IEEE_1722_FDF_OFFSET 29
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#define IEEE_1722_SYT_OFFSET 30
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#define IEEE_1722_DATA_OFFSET 32
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#define IEEE_1722_CIP_HEADER_SIZE 8
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/* Bit Field Masks */
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#define IEEE_1722_CD_MASK 0x80
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#define IEEE_1722_SUBTYPE_MASK 0x7f
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#define IEEE_1722_SV_MASK 0x80
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#define IEEE_1722_VER_MASK 0x70
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#define IEEE_1722_MR_MASK 0x08
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#define IEEE_1722_GV_MASK 0x02
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#define IEEE_1722_TV_MASK 0x01
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#define IEEE_1722_TU_MASK 0x01
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#define IEEE_1722_TAG_MASK 0xc0
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#define IEEE_1722_CHANNEL_MASK 0x3f
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#define IEEE_1722_TCODE_MASK 0xf0
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#define IEEE_1722_SY_MASK 0x0f
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#define IEEE_1722_SID_MASK 0x3f
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#define IEEE_1722_FN_MASK 0xc0
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#define IEEE_1722_QPC_MASK 0x38
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#define IEEE_1722_SPH_MASK 0x04
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#define IEEE_1722_FMT_MASK 0x3f
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/**********************************************************/
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/* Initialize the protocol and registered fields */
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/**********************************************************/
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static int proto_1722 = -1;
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static int hf_1722_cdfield = -1;
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static int hf_1722_subtype = -1;
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static int hf_1722_svfield = -1;
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static int hf_1722_verfield = -1;
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static int hf_1722_mrfield = -1;
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static int hf_1722_gvfield = -1;
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static int hf_1722_tvfield = -1;
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static int hf_1722_seqnum = -1;
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static int hf_1722_tufield = -1;
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static int hf_1722_stream_id = -1;
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static int hf_1722_avbtp_timestamp = -1;
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static int hf_1722_gateway_info = -1;
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static int hf_1722_packet_data_length = -1;
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static int hf_1722_tag = -1;
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static int hf_1722_channel = -1;
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static int hf_1722_tcode = -1;
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static int hf_1722_sy = -1;
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static int hf_1722_sid = -1;
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static int hf_1722_dbs = -1;
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static int hf_1722_fn = -1;
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static int hf_1722_qpc = -1;
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static int hf_1722_sph = -1;
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static int hf_1722_dbc = -1;
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static int hf_1722_fmt = -1;
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static int hf_1722_fdf = -1;
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static int hf_1722_syt = -1;
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static int hf_1722_data = -1;
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static int hf_1722_label = -1;
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static int hf_1722_sample = -1;
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/* Initialize the subtree pointers */
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static int ett_1722 = -1;
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static int ett_1722_audio = -1;
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static int ett_1722_sample = -1;
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static void dissect_1722(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
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{
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proto_item *ti = NULL;
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proto_tree *ieee1722_tree = NULL;
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proto_tree *audio_tree = NULL;
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proto_tree *sample_tree = NULL;
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gint offset = 0;
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guint16 datalen = 0;
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guint8 dbs = 0;
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int i, j;
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "IEEE1722");
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col_set_str(pinfo->cinfo, COL_INFO, "AVB Transportation Protocol");
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if (tree) {
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ti = proto_tree_add_item(tree, proto_1722, tvb, 0, -1, FALSE);
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ieee1722_tree = proto_item_add_subtree(ti, ett_1722);
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/* Add the CD and Subtype fields
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* CD field is 1 bit
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* Subtype field is 7 bits
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*/
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proto_tree_add_item(ieee1722_tree, hf_1722_cdfield, tvb, IEEE_1722_CD_OFFSET, 1, FALSE);
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proto_tree_add_item(ieee1722_tree, hf_1722_subtype, tvb, IEEE_1722_CD_OFFSET, 1, FALSE);
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proto_tree_add_item(ieee1722_tree, hf_1722_svfield, tvb, IEEE_1722_VERSION_OFFSET, 1, FALSE);
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proto_tree_add_item(ieee1722_tree, hf_1722_verfield, tvb, IEEE_1722_VERSION_OFFSET, 1, FALSE);
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proto_tree_add_item(ieee1722_tree, hf_1722_mrfield, tvb, IEEE_1722_VERSION_OFFSET, 1, FALSE);
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proto_tree_add_item(ieee1722_tree, hf_1722_gvfield, tvb, IEEE_1722_VERSION_OFFSET, 1, FALSE);
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proto_tree_add_item(ieee1722_tree, hf_1722_tvfield, tvb, IEEE_1722_VERSION_OFFSET, 1, FALSE);
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/* Add the rest of the packet fields */
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proto_tree_add_item(ieee1722_tree, hf_1722_seqnum, tvb,
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IEEE_1722_SEQ_NUM_OFFSET, 1, FALSE);
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proto_tree_add_item(ieee1722_tree, hf_1722_tufield, tvb,
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IEEE_1722_TU_FIELD_OFFSET, 1, FALSE);
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proto_tree_add_item(ieee1722_tree, hf_1722_stream_id, tvb,
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IEEE_1722_STREAM_ID_OFFSET, 8, FALSE);
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proto_tree_add_item(ieee1722_tree, hf_1722_avbtp_timestamp, tvb,
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IEEE_1722_TIMESTAMP_OFFSET, 4, FALSE);
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proto_tree_add_item(ieee1722_tree, hf_1722_gateway_info, tvb,
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IEEE_1722_GW_INFO_OFFSET, 4, FALSE);
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proto_tree_add_item(ieee1722_tree, hf_1722_packet_data_length, tvb,
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IEEE_1722_PKT_DATA_LENGTH_OFFSET, 2, FALSE);
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proto_tree_add_item(ieee1722_tree, hf_1722_tag, tvb,
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IEEE_1722_TAG_OFFSET, 1, FALSE);
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proto_tree_add_item(ieee1722_tree, hf_1722_channel, tvb,
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IEEE_1722_TAG_OFFSET, 1, FALSE);
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proto_tree_add_item(ieee1722_tree, hf_1722_tcode, tvb,
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IEEE_1722_TCODE_OFFSET, 1, FALSE);
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proto_tree_add_item(ieee1722_tree, hf_1722_sy, tvb,
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IEEE_1722_TCODE_OFFSET, 1, FALSE);
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proto_tree_add_item(ieee1722_tree, hf_1722_sid, tvb,
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IEEE_1722_SID_OFFSET, 1, FALSE);
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proto_tree_add_item(ieee1722_tree, hf_1722_dbs, tvb,
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IEEE_1722_DBS_OFFSET, 1, FALSE);
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proto_tree_add_item(ieee1722_tree, hf_1722_fn, tvb,
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IEEE_1722_FN_OFFSET, 1, FALSE);
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proto_tree_add_item(ieee1722_tree, hf_1722_qpc, tvb,
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IEEE_1722_FN_OFFSET, 1, FALSE);
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proto_tree_add_item(ieee1722_tree, hf_1722_sph, tvb,
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IEEE_1722_FN_OFFSET, 1, FALSE);
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proto_tree_add_item(ieee1722_tree, hf_1722_dbc, tvb,
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IEEE_1722_DBC_OFFSET, 1, FALSE);
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proto_tree_add_item(ieee1722_tree, hf_1722_fmt, tvb,
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IEEE_1722_FMT_OFFSET, 1, FALSE);
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proto_tree_add_item(ieee1722_tree, hf_1722_fdf, tvb,
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IEEE_1722_FDF_OFFSET, 1, FALSE);
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proto_tree_add_item(ieee1722_tree, hf_1722_syt, tvb,
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IEEE_1722_SYT_OFFSET, 2, FALSE);
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/* Calculate the remaining size by subtracting the CIP header size
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from the value in the packet data length field */
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datalen = tvb_get_ntohs(tvb, IEEE_1722_PKT_DATA_LENGTH_OFFSET);
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datalen -= IEEE_1722_CIP_HEADER_SIZE;
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/* Make the Audio sample tree. */
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ti = proto_tree_add_item(ieee1722_tree, hf_1722_data, tvb,
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IEEE_1722_DATA_OFFSET, datalen, FALSE);
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audio_tree = proto_item_add_subtree(ti, ett_1722_audio);
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/* Need to get the offset of where the audio data starts */
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offset = IEEE_1722_DATA_OFFSET;
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dbs = tvb_get_guint8(tvb, IEEE_1722_DBS_OFFSET);
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/* If the DBS is ever 0 for whatever reason, then just add the rest of packet as unknown */
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if(dbs == 0)
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proto_tree_add_text(ieee1722_tree, tvb, IEEE_1722_DATA_OFFSET, datalen, "Incorrect DBS");
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else {
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/* Loop through all samples and add them to the audio tree. */
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for (j = 0; j < (datalen / (dbs*4)); j++) {
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ti = proto_tree_add_text(audio_tree, tvb, offset, 1, "Sample %d", j+1);
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sample_tree = proto_item_add_subtree(ti, ett_1722_sample);
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for (i = 0; i < dbs; i++) {
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proto_tree_add_item(sample_tree, hf_1722_label, tvb, offset, 1, FALSE);
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offset += 1;
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proto_tree_add_item(sample_tree, hf_1722_sample, tvb, offset, 3, FALSE);
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offset += 3;
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}
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}
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}
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}
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}
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/* Register the protocol with Wireshark */
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void proto_register_1722(void)
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{
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static hf_register_info hf[] = {
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{ &hf_1722_cdfield,
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{ "Control/Data Indicator", "ieee1722.cdfield",
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FT_BOOLEAN, 8, NULL, IEEE_1722_CD_MASK, NULL, HFILL }
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},
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{ &hf_1722_subtype,
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{ "AVBTP Subtype", "ieee1722.subtype",
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FT_UINT8, BASE_HEX, NULL, IEEE_1722_SUBTYPE_MASK, NULL, HFILL }
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},
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{ &hf_1722_svfield,
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{ "AVBTP Stream ID Valid", "ieee1722.svfield",
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FT_BOOLEAN, 8, NULL, IEEE_1722_SV_MASK, NULL, HFILL }
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},
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{ &hf_1722_verfield,
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{ "AVBTP Version", "ieee1722.verfield",
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FT_UINT8, BASE_HEX, NULL, IEEE_1722_VER_MASK, NULL, HFILL }
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},
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{ &hf_1722_mrfield,
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{ "AVBTP Media Reset", "ieee1722.mrfield",
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FT_UINT8, BASE_DEC, NULL, IEEE_1722_MR_MASK, NULL, HFILL }
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},
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{ &hf_1722_gvfield,
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{ "AVBTP Gateway Info Valid", "ieee1722.gvfield",
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FT_BOOLEAN, 8, NULL, IEEE_1722_GV_MASK, NULL, HFILL }
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},
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{ &hf_1722_tvfield,
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{ "Source Timestamp Valid", "ieee1722.tvfield",
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FT_BOOLEAN, 8, NULL, IEEE_1722_TV_MASK, NULL, HFILL }
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},
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{ &hf_1722_seqnum,
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{ "Sequence Number", "ieee1722.seqnum",
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FT_UINT8, BASE_HEX, NULL, 0x00, NULL, HFILL }
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},
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{ &hf_1722_tufield,
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{ "AVBTP Timestamp Uncertain", "ieee1722.tufield",
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FT_BOOLEAN, 8, NULL, IEEE_1722_TU_MASK, NULL, HFILL }
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},
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{ &hf_1722_stream_id,
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{ "Stream ID", "ieee1722.stream_id",
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FT_UINT64, BASE_HEX, NULL, 0x00, NULL, HFILL }
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},
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{ &hf_1722_avbtp_timestamp,
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{ "AVBTP Timestamp", "ieee1722.avbtp_timestamp",
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FT_UINT32, BASE_HEX, NULL, 0x00, NULL, HFILL }
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},
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{ &hf_1722_gateway_info,
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{ "Gateway Info", "ieee1722.gateway_info",
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FT_UINT32, BASE_HEX, NULL, 0x00, NULL, HFILL }
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},
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{ &hf_1722_packet_data_length,
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{ "1394 Packet Data Length", "ieee1722.packet_data_len",
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FT_UINT16, BASE_DEC, NULL, 0x00, NULL, HFILL }
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},
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{ &hf_1722_tag,
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{ "1394 Packet Format Tag", "ieee1722.tag",
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FT_UINT8, BASE_HEX, NULL, IEEE_1722_TAG_MASK, NULL, HFILL }
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},
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{ &hf_1722_channel,
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{ "1394 Packet Channel", "ieee1722.channel",
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FT_UINT8, BASE_HEX, NULL, IEEE_1722_CHANNEL_MASK, NULL, HFILL }
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},
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{ &hf_1722_tcode,
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{ "1394 Packet Tcode", "ieee1722.tcode",
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FT_UINT8, BASE_HEX, NULL, IEEE_1722_TCODE_MASK, NULL, HFILL }
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},
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{ &hf_1722_sy,
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{ "1394 App-specific Control", "ieee1722.sy",
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FT_UINT8, BASE_HEX, NULL, IEEE_1722_SY_MASK, NULL, HFILL }
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},
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{ &hf_1722_sid,
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{ "Source ID", "ieee1722.sid",
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FT_UINT8, BASE_HEX, NULL, IEEE_1722_SID_MASK, NULL, HFILL }
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},
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{ &hf_1722_dbs,
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{ "Data Block Size", "ieee1722.dbs",
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FT_UINT8, BASE_HEX, NULL, 0x00, NULL, HFILL }
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},
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{ &hf_1722_fn,
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{ "Fraction Number", "ieee1722.fn",
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FT_UINT8, BASE_HEX, NULL, IEEE_1722_FN_MASK, NULL, HFILL }
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},
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{ &hf_1722_qpc,
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{ "Quadlet Padding Count", "ieee1722.qpc",
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FT_UINT8, BASE_HEX, NULL, IEEE_1722_QPC_MASK, NULL, HFILL }
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},
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{ &hf_1722_sph,
|
||||
{ "Source Packet Header", "ieee1722.sph",
|
||||
FT_BOOLEAN, 8, NULL, IEEE_1722_SPH_MASK, NULL, HFILL }
|
||||
},
|
||||
{ &hf_1722_dbc,
|
||||
{ "Data Block Continuity", "ieee1722.dbc",
|
||||
FT_UINT8, BASE_HEX, NULL, 0x00, NULL, HFILL }
|
||||
},
|
||||
{ &hf_1722_fmt,
|
||||
{ "Format ID", "ieee1722.fmt",
|
||||
FT_UINT8, BASE_HEX, NULL, IEEE_1722_FMT_MASK, NULL, HFILL }
|
||||
},
|
||||
{ &hf_1722_fdf,
|
||||
{ "Format Dependent Field", "ieee1722.fdf",
|
||||
FT_UINT8, BASE_HEX, NULL, 0x00, NULL, HFILL }
|
||||
},
|
||||
{ &hf_1722_syt,
|
||||
{ "SYT", "ieee1722.syt",
|
||||
FT_UINT16, BASE_HEX, NULL, 0x00, NULL, HFILL }
|
||||
},
|
||||
{ &hf_1722_data,
|
||||
{ "Audio Data", "ieee1722.data",
|
||||
FT_BYTES, BASE_NONE, NULL, 0x00, NULL, HFILL }
|
||||
},
|
||||
{ &hf_1722_label,
|
||||
{ "Label", "ieee1722.data.sample.label",
|
||||
FT_UINT8, BASE_HEX, NULL, 0x00, NULL, HFILL }
|
||||
},
|
||||
{ &hf_1722_sample,
|
||||
{ "Sample", "ieee1722.data.sample.sampledata",
|
||||
FT_BYTES, BASE_NONE, NULL, 0x00, NULL, HFILL }
|
||||
},
|
||||
};
|
||||
|
||||
static gint *ett[] = {
|
||||
&ett_1722,
|
||||
&ett_1722_audio,
|
||||
&ett_1722_sample
|
||||
};
|
||||
|
||||
/* Register the protocol name and description */
|
||||
proto_1722 = proto_register_protocol("IEEE 1722 Protocol", "IEEE1722", "ieee1722");
|
||||
|
||||
/* Required function calls to register the header fields and subtrees used */
|
||||
proto_register_field_array(proto_1722, hf, array_length(hf));
|
||||
proto_register_subtree_array(ett, array_length(ett));
|
||||
}
|
||||
|
||||
void proto_reg_handoff_1722(void)
|
||||
{
|
||||
dissector_handle_t avbtp_handle;
|
||||
|
||||
avbtp_handle = create_dissector_handle(dissect_1722, proto_1722);
|
||||
dissector_add("ethertype", ETHERTYPE_AVBTP, avbtp_handle);
|
||||
}
|
|
@ -99,6 +99,10 @@
|
|||
#define ETHERTYPE_MSRP 0x22EA
|
||||
#endif
|
||||
|
||||
#ifndef ETHERTYPE_AVBTP
|
||||
#define ETHERTYPE_AVBTP 0x22F0
|
||||
#endif
|
||||
|
||||
#ifndef ETHERTYPE_CENTRINO_PROMISC
|
||||
#define ETHERTYPE_CENTRINO_PROMISC 0x2452 /* Intel Centrino promiscuous packets */
|
||||
#endif
|
||||
|
|
Loading…
Reference in New Issue