2014-01-13 22:24:53 +00:00
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/* packet-pathport.c
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* Routines for Pathport Protocol dissection
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* Copyright 2014, Kevin Loewen <kloewen@pathwayconnect.com>
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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 modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include <epan/packet.h>
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#include <epan/to_str.h>
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#define PATHPORT_UDP_PORT 3792
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#define PATHPORT_MIN_LENGTH 24 /* HEADER + 1 PDU */
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#define PATHPORT_PROTO_MAGIC 0xed01
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#define PATHPORT_HEADER_OFFSET 0
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#define PATHPORT_HEADER_SRCID_OFFSET (PATHPORT_HEADER_OFFSET + 12)
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2014-03-02 18:43:06 +00:00
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2014-01-13 22:24:53 +00:00
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#define PATHPORT_HEADER_DSTID_OFFSET (PATHPORT_HEADER_OFFSET + 16)
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#define PATHPORT_HEADER_LENGTH 20
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#define PATHPORT_HEADER_END (PATHPORT_HEADER_OFFSET + PATHPORT_HEADER_LENGTH)
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/** Rounds the specified integer up to the next multiple of four. */
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#define roof4(a) (((a)+3)&~3)
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void proto_reg_handoff_pathport(void);
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void proto_register_pathport(void);
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/* Initialize the protocol and registered fields */
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static int proto_pathport = -1;
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/* Initialize the subtree pointers */
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static gint ett_pathport = -1;
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static gint ett_pp_pdu = -1;
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static gint ett_pp_tlv = -1;
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static gint ett_pp_data = -1;
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static int hf_pp_prot = -1;
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static int hf_pp_reserved = -1;
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static int hf_pp_version = -1;
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static int hf_pp_seq = -1;
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static int hf_pp_src = -1;
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static int hf_pp_dst = -1;
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static int hf_pp_data_encoding = -1;
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static int hf_pp_data_len = -1;
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static int hf_pp_data_start_code = -1;
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static int hf_pp_data_dst = -1;
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static int hf_pp_data_levels = -1;
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static int hf_pp_arp_id = -1;
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static int hf_pp_arp_manuf = -1;
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static int hf_pp_arp_class = -1;
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static int hf_pp_arp_type = -1;
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static int hf_pp_arp_numdmx = -1;
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static int hf_pp_arp_ip = -1;
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static int hf_pp_get_type = -1;
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static int hf_pp_pdu_type = -1;
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static int hf_pp_pdu_len = -1;
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static int hf_pp_pdu_payload = -1;
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static int hf_pp_pid_type = -1;
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static int hf_pp_pid_len = -1;
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static int hf_pp_pid_value = -1;
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2014-09-05 12:48:37 +00:00
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static int hf_pp_pid_pad_bytes = -1;
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2014-01-13 22:24:53 +00:00
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2015-11-25 19:18:13 +00:00
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/* Begin field and constant declarations */
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#define PP_ID_BCAST 0xffffffff
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#define PP_ID_MCAST_ALL 0xefffedff
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#define PP_ID_MCAST_DATA 0xefffed01
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#define PP_ID_MCAST_MANAGE 0xefffed02
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2014-01-13 22:24:53 +00:00
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/* Top Level PDU Types */
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2015-11-25 19:18:13 +00:00
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#define PP_ARP_REQUEST 0x0301
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#define PP_ARP_REPLY 0x0302
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#define PP_ARP_INFO 0x0303
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#define PP_GET 0x0222
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#define PP_GET_REPLY 0x0223
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#define PP_DATA 0x0100
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#define PP_SET 0x0400
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2014-01-13 22:24:53 +00:00
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static const value_string pp_pdu_vals[] = {
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{PP_ARP_REQUEST, "ARP Request"},
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2014-03-02 18:43:06 +00:00
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{PP_ARP_REPLY, "ARP Reply"},
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{PP_ARP_INFO, "ARP Extend Info"},
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{PP_GET, "Get"},
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{PP_GET_REPLY, "Get Reply"},
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{PP_DATA, "XDMX Data"},
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{PP_SET, "Set"},
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2014-01-13 22:24:53 +00:00
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{0, NULL}
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};
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/* XDMX Data Transport Encodings */
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2015-11-25 19:18:13 +00:00
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#define PP_DATA_FLAT 0x0101
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#define PP_DATA_RELEASE 0x0103
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2014-01-13 22:24:53 +00:00
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/** Data encoding strings. */
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static const value_string pp_data_encoding_vals[] = {
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2014-03-02 18:43:06 +00:00
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{PP_DATA_FLAT, "Flat"},
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{PP_DATA_RELEASE, "Release"},
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{0, NULL}
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2014-01-13 22:24:53 +00:00
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};
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/** ID strings. */
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static const value_string ednet_id_vals[] = {
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2014-03-02 18:43:06 +00:00
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{PP_ID_BCAST, "Broadcast"},
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{PP_ID_MCAST_ALL, "All"},
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{PP_ID_MCAST_DATA, "Data"},
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2014-01-13 22:24:53 +00:00
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{PP_ID_MCAST_MANAGE, "Manage"},
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{0, NULL}
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};
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/* Configuration Property IDs */
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2015-11-25 19:18:13 +00:00
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#define PP_PAD 0x0000
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#define PP_NODE_NAME 0x0401
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#define PP_PORT_NAME 0x0411
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#define PP_PATCH_NAME 0x0412
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#define PP_PORT_SPEED 0x0413
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#define PP_IS_BIDIRECTIONAL 0x0414
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#define PP_IS_PHYSICAL 0x0415
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#define PP_IS_MALE 0x0416
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#define PP_IS_SINK 0x0417
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#define PP_XDMX_COUNT 0x0418
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#define PP_ALT_START_CODE 0x041A
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#define PP_MAX_PATCHES 0x041B
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#define PP_NUM_PATCHES 0x041C
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#define PP_TERMINATED 0x041E
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#define PP_INPUT_PRIORITY 0x041F
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#define PP_INPUT_PRIORITY_CHANNEL 0x0420
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#define PP_MAC 0x0421
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#define PP_IP 0x0422
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#define PP_NETMASK 0x0423
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#define PP_ROUTER 0x0424
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#define PP_PP_ID 0x0461
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#define PP_PP_ID_MASK 0x0462
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#define PP_PP_TX_DATA_DST 0x0463
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#define PP_BACKLIGHT 0x0481
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#define PP_SW_VERSION 0x0482
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#define PP_HW_TYPE 0x0483
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#define PP_LOADER_VERSION 0x0484
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#define PP_IDENTIFY 0x0485
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#define PP_IRENABLE 0x0486
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#define PP_SERIAL 0x0487
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#define PP_KEYPAD_LOCKOUT 0x0488
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#define PP_ARTNET_RX_ENABLE 0x0489
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#define PP_TX_PROTOCOL 0x048a
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#define PP_SHOWNET_RX_ENABLE 0x048b
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#define PP_LED_INTENSITY 0x048c
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#define PP_JUMPER_CONFIGURED 0x048d
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#define PP_SACN_RX_ENABLE 0x048e
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#define PP_NET2_RX_ENABLE 0x048f
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#define PP_PATHPORT_RX_ENABLE 0x0490
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#define PP_SACN_IS_DRAFT 0x0491
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#define PP_REBOOT 0x04a1
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#define PP_BOOTORDER 0x04a2
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#define PP_FACTORY_DEFAULT 0x04a4
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#define PP_TEST_LCD 0x04c1
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#define PP_IS_TERMINAL_BLOCK 0x04c2
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#define PP_IS_RACK_MOUNTED 0x04c3
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#define PP_IS_ENABLED 0x04c4
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#define PP_IS_DMX_ACTIVE 0x04c5
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#define PP_IS_XDMX_ACTIVE 0x04c6
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#define PP_SIGNAL_LOSS_HOLD_TIME 0x04c7
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#define PP_SIGNAL_LOSS_HOLD_FOREVER 0x04c8
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#define PP_SIGNAL_LOSS_FADE_ENABLE 0x04c9
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#define PP_SIGNAL_LOSS_FADE_TIME 0x04ca
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#define PP_SIGNAL_LOSS_PORT_SHUTDOWN 0x04cb
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#define PP_NET2_ADMIN_MCAST 0x04ce
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#define PP_NET2_DATA_MCAST 0x04cf
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#define PP_ROOMS_FEATURES 0x04d0
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#define PP_UNIVERSE_TEMP 0x04d1
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#define PP_CROSSFADE_TIME 0x04d2
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#define PP_CROSSFADE_ENABLE 0x04d3
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#define PP_IGNORE_INPUT_PRI 0x04d4
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#define PP_ARTNET_ALT_MAP 0x04d5
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#define PP_PATCH_CRC 0x04d6
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#define PP_CONF_CHANGE 0x04d7
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#define PP_PORT_ACTIVE_SUMMARY 0x04d8
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#define PP_SUPPORTED_UNIV 0x04d9
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#define PP_INPUT_HLL_TIME 0x04da
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#define PP_PCP_ENABLE 0x04db
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#define PP_INPUT_UNIVERSE 0x04dc
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#define PP_MODEL_NAME 0x04dd
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#define PP_MANUF_NAME 0x04de
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#define PP_VER_STR 0x04df
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#define PP_SERIAL_STR 0x04e0
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#define PP_NODE_NOTES 0x04e1
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#define PP_PORT_NOTES 0x04e2
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#define PP_USER_NODE_ID 0x04e3
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#define PP_MDG_GEN_STATE 0x0601
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#define PP_EMBEDDED_ID 0x0602
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#define PP_SLAVE_DMX_START 0x0603
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#define PP_TB_MODE 0x0605
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#define PP_LINK_MODE 0x0701
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#define PP_LINK_STATUS 0x0702
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#define PP_CONNECTED_COUNT 0x0703
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#define PP_POE_STATUS 0x0704
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#define PP_POE_EXTERN_WATT 0x0705
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#define PP_POE_CURRENT_WATT 0x0706
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#define PP_SFP_MODULE_TYPE 0x0707
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#define PP_POE_EXTERN_PRESENT 0x0708
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#define PP_POE_CAPABLE 0x0709
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#define PP_SWITCH_PORT_TYPE 0x070a
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#define PP_POE_MAX_ALLOC_MW 0x070b
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#define PP_POE_CURRENT_ALLOC_MW 0x070c
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#define PP_VLAN_RANGE_START 0x070d
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#define PP_VLAN_RANGE_END 0x070e
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#define PP_VLAN_IS_TAGGED 0x070f
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#define PP_VLAN_PORT_VID 0x0710
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#define PP_VLAN_MGMT_VID 0x0711
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#define PP_VLAN_ENABLE 0x0712
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#define PP_EAPS_MODE 0x0713
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#define PP_EAPS_VLAN 0x0714
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#define PP_EAPS_PRI_PORT 0x0715
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#define PP_EAPS_SEC_PORT 0x0716
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#define PP_LLDP_PARTNER_MAC 0x0717
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#define PP_LLDP_PARTNER_PORT 0x0718
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#define PP_ET_PARAM_1 0x1101
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#define PP_END 0xffff
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2014-01-13 22:24:53 +00:00
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/** Property strings. */
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static const value_string pp_pid_vals[] = {
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2014-03-02 18:43:06 +00:00
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{PP_PAD, "Pad"},
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{PP_NODE_NAME, "Node Name"},
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{PP_PORT_NAME, "Port Name"},
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{PP_PATCH_NAME, "Patch Name"},
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{PP_PORT_SPEED, "Port Speed"},
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{PP_IS_BIDIRECTIONAL, "Bi Directional"},
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{PP_IS_PHYSICAL, "Physical"},
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{PP_IS_MALE, "Is Male"},
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{PP_IS_SINK, "Is Sink"},
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{PP_XDMX_COUNT, "XDMX Channel Count"},
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{PP_ALT_START_CODE, "Alt Start Code List"},
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{PP_MAX_PATCHES, "Max # Patches"},
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{PP_NUM_PATCHES, "Current # Patches"},
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{PP_TERMINATED, "Is Terminated"},
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{PP_INPUT_PRIORITY, "Input Priority (Static)"},
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{PP_INPUT_PRIORITY_CHANNEL, "Input Priority Channel"},
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{PP_MAC, "Ethernet Address"},
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{PP_IP, "IP Address"},
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{PP_NETMASK, "IP Netmask"},
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{PP_ROUTER, "Default Router"},
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{PP_PP_ID, "Pathport ID"},
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{PP_PP_ID_MASK, "Pathport ID Mask"},
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{PP_PP_TX_DATA_DST, "Pathport Data Transmit Offset"},
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{PP_BACKLIGHT, "Backlight"},
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{PP_SW_VERSION, "Software Version"},
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{PP_HW_TYPE, "Hardware Type"},
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{PP_LOADER_VERSION, "Loader Version"},
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{PP_IDENTIFY, "Identify"},
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{PP_IRENABLE, "IR Enable"},
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{PP_SERIAL, "Serial Number"},
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{PP_KEYPAD_LOCKOUT, "Front Panel Lockout"},
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{PP_ARTNET_RX_ENABLE, "ArtNet Rx Enable"},
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{PP_TX_PROTOCOL, "Data Tx Proto"},
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{PP_SHOWNET_RX_ENABLE, "Shownet Rx Enable"},
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/* XXX: PP_LED_INTENSITY ?? */
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{PP_JUMPER_CONFIGURED, "Universe Patched By Jumper"},
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{PP_SACN_RX_ENABLE, "sACN (E1.31) Rx Enable"},
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{PP_NET2_RX_ENABLE, "ETCNet2 Rx Enable"},
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{PP_PATHPORT_RX_ENABLE, "xDMX Rx Enable"},
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{PP_SACN_IS_DRAFT, "sACN TX is Draft"},
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{PP_REBOOT, "Reboot"},
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{PP_BOOTORDER, "Boot Order"},
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{PP_FACTORY_DEFAULT, "Factory Default"},
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{PP_TEST_LCD, "Test LCD"},
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/* XXX: PP_IS_TERMINAL_BLOCK ?? */
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/* XXX: PP_IS_RACK_MOUNTED ?? */
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{PP_IS_ENABLED, "Port Enable"},
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{PP_IS_DMX_ACTIVE , "DMX Active"},
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{PP_IS_XDMX_ACTIVE , "xDMX Active"},
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{PP_SIGNAL_LOSS_HOLD_TIME, "Signal Loss Hold Time (DMX OUT)"},
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2014-01-13 22:24:53 +00:00
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{PP_SIGNAL_LOSS_HOLD_FOREVER , "Signal Loss Infinite Hold"},
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2014-03-02 18:43:06 +00:00
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{PP_SIGNAL_LOSS_FADE_ENABLE, "Signal Loss Fade Enable"},
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{PP_SIGNAL_LOSS_FADE_TIME, "Signal Loss Fade Time"},
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2014-01-13 22:24:53 +00:00
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{PP_SIGNAL_LOSS_PORT_SHUTDOWN, "Signal Loss Port Shutdown"},
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2014-03-02 18:43:06 +00:00
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/* XXX: PP_NET2_ADMIN_MCAST ?? */
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/* XXX: PP_NET2_DATA_MCAST ?? */
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/* XXX: PP_ROOMS_FEATURES ?? */
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{PP_UNIVERSE_TEMP, "xDMX Universe"},
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{PP_CROSSFADE_TIME, "Crossfade Time(ms)"},
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{PP_CROSSFADE_ENABLE, "Crossfade Enable"},
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{PP_IGNORE_INPUT_PRI, "Ignore Input Priority"},
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{PP_ARTNET_ALT_MAP, "ArtNet Alternate Univ Mapping"},
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{PP_PATCH_CRC, "Output Patch File CRC"},
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|
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{PP_CONF_CHANGE, "Config Change Notify"},
|
|
|
|
{PP_PORT_ACTIVE_SUMMARY, "Port Active Bitmap"},
|
|
|
|
{PP_SUPPORTED_UNIV, "Number Supported Univ"},
|
|
|
|
{PP_INPUT_HLL_TIME, "Signal Loss Hold Time (DMX IN)"},
|
2015-11-15 20:06:10 +00:00
|
|
|
{PP_PCP_ENABLE, "Per Channel Priority Enable"},
|
2014-03-02 18:43:06 +00:00
|
|
|
{PP_INPUT_UNIVERSE, "Input Universe"},
|
|
|
|
{PP_MODEL_NAME, "Model Name"},
|
|
|
|
{PP_MANUF_NAME, "Manufacturer Name"},
|
|
|
|
{PP_VER_STR, "Firmware Ver (String)"},
|
|
|
|
{PP_SERIAL_STR, "Serial Number (String)"},
|
|
|
|
{PP_NODE_NOTES, "Node User Notes"},
|
|
|
|
{PP_PORT_NOTES, "Port User Notes"},
|
|
|
|
{PP_USER_NODE_ID, "User Node ID"},
|
|
|
|
{PP_MDG_GEN_STATE, "MDG Generator Status"},
|
|
|
|
{PP_EMBEDDED_ID, "Embedded Device ID"},
|
|
|
|
{PP_SLAVE_DMX_START, "Embedded Device DMX Address"},
|
|
|
|
{PP_TB_MODE, "RDM Discovery Enable"},
|
|
|
|
{PP_LINK_MODE, "Ethernet Link Mode"},
|
|
|
|
{PP_LINK_STATUS, "Ethernet Link Status"},
|
|
|
|
{PP_CONNECTED_COUNT, "Connected PP Devices"},
|
|
|
|
{PP_POE_STATUS, "PoE Status"},
|
|
|
|
{PP_POE_EXTERN_WATT, "PoE External Supply Wattage"},
|
|
|
|
{PP_POE_CURRENT_WATT, "PoE Current Supply Wattage"},
|
|
|
|
{PP_SFP_MODULE_TYPE, "SFP Module Type"},
|
|
|
|
{PP_POE_EXTERN_PRESENT, "PoE External Supply Present"},
|
|
|
|
{PP_POE_CAPABLE, "PoE Capable Port"},
|
|
|
|
{PP_SWITCH_PORT_TYPE, "Ethernet Port Type"},
|
|
|
|
{PP_POE_MAX_ALLOC_MW, "PoE Max Alloc mW"},
|
|
|
|
{PP_POE_CURRENT_ALLOC_MW, "PoE Current Alloc mW"},
|
|
|
|
{PP_VLAN_RANGE_START, "VLAN Range Start"},
|
|
|
|
{PP_VLAN_RANGE_END, "VLAN Range End"},
|
|
|
|
{PP_VLAN_IS_TAGGED, "VLAN Port is Tagged"},
|
|
|
|
{PP_VLAN_PORT_VID, "VLAN Port VID"},
|
|
|
|
{PP_VLAN_MGMT_VID, "VLAN Management VID"},
|
|
|
|
{PP_VLAN_ENABLE, "VLAN Enable"},
|
|
|
|
{PP_EAPS_MODE, "EAPS Mode"},
|
|
|
|
{PP_EAPS_VLAN, "EAPS Control VLAN"},
|
|
|
|
{PP_EAPS_PRI_PORT, "EAPS Primary Port"},
|
|
|
|
{PP_EAPS_SEC_PORT, "EAPS Secondary Port"},
|
|
|
|
{PP_LLDP_PARTNER_MAC, "LLDP Partner MAC"},
|
|
|
|
{PP_LLDP_PARTNER_PORT, "LLDP Partner Port"},
|
|
|
|
/* XXX: ET_PARAM ?? */
|
|
|
|
{PP_END, "End"},
|
2014-01-13 22:24:53 +00:00
|
|
|
{0, NULL}
|
|
|
|
};
|
|
|
|
|
|
|
|
value_string_ext pp_pid_vals_ext = VALUE_STRING_EXT_INIT(pp_pid_vals);
|
2014-03-02 18:43:06 +00:00
|
|
|
|
2014-01-13 22:24:53 +00:00
|
|
|
/** Unknown type format. */
|
|
|
|
#define TYPE_UNKNOWN "Unknown (%04x)"
|
|
|
|
|
|
|
|
/* End Field and enum declarations */
|
|
|
|
|
|
|
|
|
|
|
|
/* Code to actually dissect the packets */
|
2014-03-02 18:43:06 +00:00
|
|
|
static guint dissect_one_tlv(tvbuff_t *tvb, proto_tree *tree,
|
2014-01-13 22:24:53 +00:00
|
|
|
guint offset)
|
|
|
|
{
|
2014-07-05 19:25:32 +00:00
|
|
|
proto_item *ti;
|
|
|
|
proto_tree *tlv_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_pp_tlv, &ti, "Property");
|
2014-01-13 22:24:53 +00:00
|
|
|
|
|
|
|
guint len;
|
|
|
|
guint pad_len;
|
|
|
|
|
|
|
|
guint type = tvb_get_ntohs(tvb, offset);
|
2014-03-02 18:43:06 +00:00
|
|
|
const char *name = val_to_str_ext(type, &pp_pid_vals_ext, TYPE_UNKNOWN);
|
2014-01-13 22:24:53 +00:00
|
|
|
proto_item_append_text(ti, " : %s", name);
|
|
|
|
|
2014-09-19 01:18:34 +00:00
|
|
|
proto_tree_add_item(tlv_tree, hf_pp_pid_type, tvb, offset, 2, ENC_BIG_ENDIAN);
|
2014-01-13 22:24:53 +00:00
|
|
|
offset += 2;
|
|
|
|
|
|
|
|
len = tvb_get_ntohs(tvb, offset);
|
|
|
|
proto_item_set_len(ti, 4 + len);
|
|
|
|
|
2014-09-19 01:18:34 +00:00
|
|
|
proto_tree_add_item(tlv_tree, hf_pp_pid_len, tvb, offset, 2, ENC_BIG_ENDIAN);
|
2014-01-13 22:24:53 +00:00
|
|
|
offset += 2;
|
|
|
|
|
|
|
|
proto_tree_add_item(tlv_tree, hf_pp_pid_value, tvb, offset, len, ENC_NA);
|
|
|
|
offset += len;
|
|
|
|
|
|
|
|
pad_len = ~(offset-1) & 3;
|
|
|
|
if(pad_len)
|
|
|
|
{
|
2014-09-05 12:48:37 +00:00
|
|
|
proto_tree_add_item(tlv_tree, hf_pp_pid_pad_bytes, tvb, offset, pad_len, ENC_NA);
|
2014-01-13 22:24:53 +00:00
|
|
|
offset += pad_len;
|
|
|
|
}
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static guint
|
2014-03-02 18:43:06 +00:00
|
|
|
dissect_multiple_tlvs(tvbuff_t *tvb, proto_item *ti,
|
2014-01-13 22:24:53 +00:00
|
|
|
guint offset, guint len)
|
|
|
|
{
|
|
|
|
guint end = offset + len;
|
|
|
|
while(offset < end) {
|
|
|
|
offset = dissect_one_tlv(tvb, ti, offset);
|
|
|
|
}
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
static guint
|
2014-03-02 18:43:06 +00:00
|
|
|
dissect_multiple_get_pids(tvbuff_t *tvb, proto_item *tree, guint offset, guint len)
|
2014-01-13 22:24:53 +00:00
|
|
|
{
|
|
|
|
guint end = offset + len;
|
|
|
|
|
|
|
|
while(offset < end)
|
|
|
|
{
|
2014-09-19 01:18:34 +00:00
|
|
|
proto_tree_add_item(tree, hf_pp_get_type, tvb, offset, 2, ENC_BIG_ENDIAN);
|
2014-01-13 22:24:53 +00:00
|
|
|
offset += 2;
|
|
|
|
}
|
|
|
|
return len;
|
|
|
|
}
|
|
|
|
|
|
|
|
static guint
|
2014-03-02 18:43:06 +00:00
|
|
|
dissect_data_payload(tvbuff_t *tvb, proto_item *tree, guint offset, guint len)
|
2014-01-13 22:24:53 +00:00
|
|
|
{
|
|
|
|
guint end = offset + len;
|
|
|
|
guint blklen = 0;
|
|
|
|
guint xdmx, stc;
|
|
|
|
|
|
|
|
while(offset < end)
|
|
|
|
{
|
2014-07-05 19:25:32 +00:00
|
|
|
proto_item *ti;
|
|
|
|
proto_tree *data_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_pp_data, &ti, "xDMX Data: ");
|
2014-09-19 01:18:34 +00:00
|
|
|
proto_tree_add_item(data_tree, hf_pp_data_encoding, tvb, offset, 2, ENC_BIG_ENDIAN);
|
2014-01-13 22:24:53 +00:00
|
|
|
offset += 2;
|
|
|
|
blklen = tvb_get_ntohs(tvb, offset);
|
2014-09-19 01:18:34 +00:00
|
|
|
proto_tree_add_item(data_tree, hf_pp_data_len, tvb, offset, 2, ENC_BIG_ENDIAN);
|
2014-01-13 22:24:53 +00:00
|
|
|
offset += 2;
|
|
|
|
proto_tree_add_item(data_tree, hf_pp_reserved, tvb, offset++, 1, ENC_NA);
|
|
|
|
stc = tvb_get_guint8(tvb, offset);
|
2014-12-13 17:52:20 +00:00
|
|
|
proto_tree_add_item(data_tree, hf_pp_data_start_code, tvb, offset++, 1, ENC_BIG_ENDIAN);
|
2014-01-13 22:24:53 +00:00
|
|
|
xdmx = tvb_get_ntohs(tvb, offset);
|
2014-09-19 01:18:34 +00:00
|
|
|
proto_tree_add_item(data_tree, hf_pp_data_dst, tvb, offset, 2, ENC_BIG_ENDIAN);
|
2014-01-13 22:24:53 +00:00
|
|
|
offset += 2;
|
|
|
|
proto_tree_add_item(data_tree, hf_pp_data_levels, tvb, offset, blklen, ENC_NA);
|
|
|
|
proto_item_append_text(ti, "%d Channels at xDMX %d (Univ %d.%d) StartCode: %d ", blklen, xdmx, xdmx / 512 + 1, xdmx % 512, stc);
|
|
|
|
offset += roof4(blklen);
|
|
|
|
}
|
|
|
|
return len;
|
|
|
|
}
|
|
|
|
|
|
|
|
static guint
|
|
|
|
dissect_arp_reply(tvbuff_t *tvb, proto_tree *tree, guint offset, guint len)
|
|
|
|
{
|
2014-09-19 01:18:34 +00:00
|
|
|
proto_tree_add_item(tree, hf_pp_arp_id, tvb, offset, 4, ENC_BIG_ENDIAN);
|
2014-01-13 22:24:53 +00:00
|
|
|
offset += 4;
|
2014-08-05 16:35:36 +00:00
|
|
|
proto_tree_add_item(tree, hf_pp_arp_ip, tvb, offset, 4, ENC_NA);
|
2014-01-13 22:24:53 +00:00
|
|
|
offset += 4;
|
2014-12-13 17:52:20 +00:00
|
|
|
proto_tree_add_item(tree, hf_pp_arp_manuf, tvb, offset++, 1, ENC_BIG_ENDIAN);
|
|
|
|
proto_tree_add_item(tree, hf_pp_arp_class, tvb, offset++, 1, ENC_BIG_ENDIAN);
|
|
|
|
proto_tree_add_item(tree, hf_pp_arp_type, tvb, offset++, 1, ENC_BIG_ENDIAN);
|
|
|
|
proto_tree_add_item(tree, hf_pp_arp_numdmx, tvb, offset++, 1, ENC_BIG_ENDIAN);
|
2014-01-13 22:24:53 +00:00
|
|
|
return len;
|
|
|
|
}
|
|
|
|
|
|
|
|
static guint
|
2014-03-02 18:43:06 +00:00
|
|
|
dissect_one_pdu(tvbuff_t *tvb, proto_tree *tree, guint offset)
|
2014-01-13 22:24:53 +00:00
|
|
|
{
|
2014-07-05 19:25:32 +00:00
|
|
|
proto_item *ti;
|
|
|
|
proto_tree *pdu_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_pp_pdu, &ti, "PDU");
|
2014-01-13 22:24:53 +00:00
|
|
|
|
|
|
|
guint len;
|
|
|
|
|
|
|
|
guint type = tvb_get_ntohs(tvb, offset);
|
2014-03-02 18:43:06 +00:00
|
|
|
const char *name = val_to_str(type, pp_pdu_vals, TYPE_UNKNOWN);
|
2014-07-05 19:25:32 +00:00
|
|
|
|
2014-01-13 22:24:53 +00:00
|
|
|
proto_item_append_text(ti, " : %s", name);
|
|
|
|
|
2014-09-19 01:18:34 +00:00
|
|
|
proto_tree_add_item(pdu_tree, hf_pp_pdu_type, tvb, offset, 2, ENC_BIG_ENDIAN);
|
2014-01-13 22:24:53 +00:00
|
|
|
offset += 2;
|
|
|
|
|
|
|
|
len = tvb_get_ntohs(tvb, offset);
|
|
|
|
proto_item_set_len(ti, 4 + len);
|
|
|
|
|
2014-09-19 01:18:34 +00:00
|
|
|
proto_tree_add_item(pdu_tree, hf_pp_pdu_len, tvb, offset, 2, ENC_BIG_ENDIAN);
|
2014-01-13 22:24:53 +00:00
|
|
|
offset += 2;
|
|
|
|
|
|
|
|
switch(type)
|
|
|
|
{
|
|
|
|
case PP_ARP_REPLY :
|
|
|
|
dissect_arp_reply(tvb, pdu_tree, offset, len);
|
|
|
|
break;
|
|
|
|
case PP_GET :
|
|
|
|
dissect_multiple_get_pids(tvb, pdu_tree, offset, len);
|
|
|
|
break;
|
|
|
|
case PP_SET :
|
|
|
|
case PP_GET_REPLY :
|
|
|
|
case PP_ARP_INFO :
|
|
|
|
dissect_multiple_tlvs(tvb, pdu_tree, offset, len);
|
|
|
|
break;
|
|
|
|
case PP_DATA :
|
|
|
|
dissect_data_payload(tvb, pdu_tree, offset, len);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
proto_tree_add_item(pdu_tree, hf_pp_pdu_payload, tvb, offset, len, ENC_NA);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
offset += roof4(len);
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
static guint
|
2014-03-02 18:43:06 +00:00
|
|
|
dissect_multiple_pdus(tvbuff_t *tvb, proto_item *ti,
|
2014-01-13 22:24:53 +00:00
|
|
|
guint offset, guint len)
|
|
|
|
{
|
|
|
|
guint end = offset + len;
|
|
|
|
while(offset < end) {
|
|
|
|
offset = dissect_one_pdu(tvb, ti, offset);
|
|
|
|
}
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_header(tvbuff_t *tvb, proto_tree *parent, guint offset)
|
|
|
|
{
|
2014-07-05 19:25:32 +00:00
|
|
|
proto_tree *tree = proto_tree_add_subtree(parent, tvb, offset, PATHPORT_HEADER_LENGTH, ett_pathport, NULL, "Header");
|
2014-01-13 22:24:53 +00:00
|
|
|
|
2014-09-19 01:18:34 +00:00
|
|
|
proto_tree_add_item(tree, hf_pp_prot, tvb, offset, 2, ENC_BIG_ENDIAN);
|
2014-01-13 22:24:53 +00:00
|
|
|
offset += 2;
|
2014-09-19 01:18:34 +00:00
|
|
|
proto_tree_add_item(tree, hf_pp_version, tvb, offset, 2, ENC_BIG_ENDIAN);
|
2014-01-13 22:24:53 +00:00
|
|
|
offset += 2;
|
2014-09-19 01:18:34 +00:00
|
|
|
proto_tree_add_item(tree, hf_pp_seq, tvb, offset, 2, ENC_BIG_ENDIAN);
|
2014-01-13 22:24:53 +00:00
|
|
|
offset += 2;
|
|
|
|
proto_tree_add_item(tree, hf_pp_reserved, tvb, offset, 6, ENC_NA);
|
|
|
|
offset += 6;
|
2014-09-19 01:18:34 +00:00
|
|
|
proto_tree_add_item(tree, hf_pp_src, tvb, offset, 4, ENC_BIG_ENDIAN);
|
2014-01-13 22:24:53 +00:00
|
|
|
offset += 4;
|
2014-09-19 01:18:34 +00:00
|
|
|
proto_tree_add_item(tree, hf_pp_dst, tvb, offset, 4, ENC_BIG_ENDIAN);
|
2014-01-13 22:24:53 +00:00
|
|
|
offset += 4;
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
static gboolean
|
|
|
|
packet_is_pathport(tvbuff_t *tvb)
|
|
|
|
{
|
2014-08-05 16:35:36 +00:00
|
|
|
if(tvb_captured_length(tvb) < PATHPORT_MIN_LENGTH)
|
2014-01-13 22:24:53 +00:00
|
|
|
return FALSE;
|
|
|
|
|
2014-03-02 18:43:06 +00:00
|
|
|
if(tvb_get_ntohs(tvb, 0) != PATHPORT_PROTO_MAGIC)
|
|
|
|
return FALSE;
|
2014-01-13 22:24:53 +00:00
|
|
|
/* could also check that the first PDU is in our list of supported PDUs */
|
|
|
|
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
/** Resolves the specified ID to a name. */
|
2014-03-02 18:43:06 +00:00
|
|
|
static const char *
|
2014-01-13 22:24:53 +00:00
|
|
|
resolve_pp_id(guint32 id)
|
|
|
|
{
|
|
|
|
return val_to_str(id, ednet_id_vals, "%X");
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dissect_pathport_common(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
|
|
{
|
|
|
|
/* Set up structures needed to add the protocol subtree and manage it */
|
|
|
|
proto_item *ti;
|
|
|
|
proto_tree *pathport_tree;
|
|
|
|
guint offset = 0;
|
|
|
|
guint remaining_len;
|
2014-03-02 18:43:06 +00:00
|
|
|
guint len;
|
2014-01-13 22:24:53 +00:00
|
|
|
guint16 type;
|
|
|
|
guint32 srcid;
|
|
|
|
guint32 dstid;
|
|
|
|
|
2014-03-02 18:43:06 +00:00
|
|
|
len = tvb_reported_length(tvb);
|
2014-01-13 22:24:53 +00:00
|
|
|
|
|
|
|
/* Set the Protocol column to the constant string of Pathport */
|
|
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "Pathport");
|
|
|
|
|
|
|
|
/* Set the info column to reflect the first PDU in the packet */
|
|
|
|
col_clear(pinfo->cinfo, COL_INFO);
|
|
|
|
srcid = tvb_get_ntohl(tvb, PATHPORT_HEADER_SRCID_OFFSET);
|
2014-08-05 16:35:36 +00:00
|
|
|
type = tvb_get_ntohs(tvb, PATHPORT_HEADER_LENGTH);
|
2014-01-13 22:24:53 +00:00
|
|
|
|
|
|
|
if(type == PP_ARP_REQUEST)
|
|
|
|
{
|
|
|
|
dstid = tvb_get_ntohl(tvb, PATHPORT_HEADER_DSTID_OFFSET);
|
|
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "Who has %s? Tell %s",
|
|
|
|
resolve_pp_id(dstid), resolve_pp_id(srcid));
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
if((type == PP_ARP_REPLY) && (len >= 36))
|
|
|
|
{
|
|
|
|
guint32 id = tvb_get_ntohl(tvb, 24);
|
|
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "%s is at %s", resolve_pp_id(id), tvb_ip_to_str(tvb, 28));
|
|
|
|
}
|
|
|
|
else if((type == PP_DATA) && (len >= 32))
|
|
|
|
{
|
|
|
|
guint16 xdmx_start = tvb_get_ntohs(tvb, 30);
|
|
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "xDMX Data - %d channels @ %d (Univ %d.%d)",
|
|
|
|
tvb_get_ntohs(tvb, 26),
|
|
|
|
xdmx_start, xdmx_start / 512 + 1, xdmx_start % 512);
|
|
|
|
}
|
|
|
|
else /* default */
|
|
|
|
{
|
|
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "%s", val_to_str(type, pp_pdu_vals, TYPE_UNKNOWN));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if(tree == NULL)
|
2014-03-02 18:43:06 +00:00
|
|
|
return tvb_reported_length(tvb);
|
2014-01-13 22:24:53 +00:00
|
|
|
|
|
|
|
/* create display subtree for the protocol */
|
|
|
|
ti = proto_tree_add_item(tree, proto_pathport, tvb, 0, -1, ENC_NA);
|
|
|
|
|
|
|
|
pathport_tree = proto_item_add_subtree(ti, ett_pathport);
|
|
|
|
offset = dissect_header(tvb, pathport_tree, PATHPORT_HEADER_OFFSET);
|
2014-08-05 16:35:36 +00:00
|
|
|
remaining_len = tvb_reported_length_remaining(tvb, offset);
|
2014-01-13 22:24:53 +00:00
|
|
|
offset = dissect_multiple_pdus(tvb, tree, offset, remaining_len);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_pathport(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
|
|
|
|
void *data _U_)
|
|
|
|
{
|
|
|
|
if(!packet_is_pathport(tvb))
|
|
|
|
return 0;
|
|
|
|
return dissect_pathport_common(tvb, pinfo, tree);
|
|
|
|
}
|
|
|
|
|
|
|
|
static gboolean
|
|
|
|
dissect_pathport_heur(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
|
|
|
|
{
|
|
|
|
if(!packet_is_pathport(tvb))
|
2014-03-02 18:43:06 +00:00
|
|
|
return FALSE;
|
2014-01-13 22:24:53 +00:00
|
|
|
|
|
|
|
dissect_pathport_common(tvb, pinfo, tree);
|
|
|
|
return (TRUE);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Register the protocol with Wireshark.
|
|
|
|
*/
|
|
|
|
void
|
|
|
|
proto_register_pathport(void)
|
|
|
|
{
|
|
|
|
static hf_register_info hf[] = {
|
|
|
|
/* Packet Header */
|
2014-09-05 12:48:37 +00:00
|
|
|
{&hf_pp_prot, {"Protocol", "pathport.prot", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL }},
|
|
|
|
{&hf_pp_reserved, {"Reserved", "pathport.resv", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
|
|
|
|
{&hf_pp_version, {"Version", "pathport.version", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL }},
|
|
|
|
{&hf_pp_seq, {"Sequence", "pathport.seq", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
|
|
|
|
{&hf_pp_src, {"Source ID", "pathport.src", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL }},
|
|
|
|
{&hf_pp_dst, {"Destination ID", "pathport.dst", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL }},
|
2014-01-13 22:24:53 +00:00
|
|
|
|
|
|
|
/* PDU Header */
|
2014-09-05 12:48:37 +00:00
|
|
|
{&hf_pp_pdu_type, {"PDU", "pathport.pdu", FT_UINT16, BASE_HEX, VALS(pp_pdu_vals), 0x0, NULL, HFILL }},
|
|
|
|
{&hf_pp_pdu_len, {"Length", "pathport.len", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
|
|
|
|
{&hf_pp_pdu_payload, {"Payload", "pathport.payload", FT_BYTES, 0, NULL, 0x0, NULL, HFILL }},
|
2014-01-13 22:24:53 +00:00
|
|
|
|
|
|
|
/* Property structures */
|
2014-09-05 12:48:37 +00:00
|
|
|
{&hf_pp_get_type, {"Get", "pathport.get.pid", FT_UINT16, BASE_HEX | BASE_EXT_STRING, &pp_pid_vals_ext, 0x0, NULL, HFILL }},
|
|
|
|
{&hf_pp_pid_type, {"Property", "pathport.pid", FT_UINT16, BASE_HEX | BASE_EXT_STRING, &pp_pid_vals_ext, 0x0, NULL, HFILL }},
|
|
|
|
{&hf_pp_pid_len, {"Length", "pathport.pid.len", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
|
|
|
|
{&hf_pp_pid_value, {"Value", "pathport.pid.value", FT_BYTES, 0, NULL, 0x0, NULL, HFILL }},
|
|
|
|
{&hf_pp_pid_pad_bytes, {"Pad bytes", "pathport.pid.pad_bytes", FT_BYTES, 0, NULL, 0x0, NULL, HFILL }},
|
2014-01-13 22:24:53 +00:00
|
|
|
|
|
|
|
/* Pathport XDMX Data */
|
2014-09-05 12:48:37 +00:00
|
|
|
{&hf_pp_data_encoding, {"Data Encoding", "pathport.data.encoding", FT_UINT16, BASE_HEX, VALS(pp_data_encoding_vals), 0x0, NULL, HFILL }},
|
|
|
|
{&hf_pp_data_start_code, {"DMX Start Code", "pathport.data.startcode", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }},
|
|
|
|
{&hf_pp_data_len, {"Data Length", "pathport.data.len", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL }},
|
|
|
|
{&hf_pp_data_dst, {"xDMX Destination", "pathport.data.dst", FT_UINT16, BASE_HEX, NULL, 0x0,NULL, HFILL }},
|
|
|
|
{&hf_pp_data_levels, {"Levels", "pathport.data.levels", FT_NONE, 0, NULL, 0x0, NULL, HFILL }},
|
2014-01-13 22:24:53 +00:00
|
|
|
|
|
|
|
/* PP_ARP Reply structures */
|
2014-09-05 12:48:37 +00:00
|
|
|
{&hf_pp_arp_id, {"ID", "pathport.arp.id", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL }},
|
|
|
|
{&hf_pp_arp_manuf, {"Manufacturer", "pathport.arp.manuf", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }},
|
|
|
|
{&hf_pp_arp_class, {"Device Class", "pathport.arp.class", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }},
|
|
|
|
{&hf_pp_arp_type, {"Device Type", "pathport.arp.type", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }},
|
|
|
|
{&hf_pp_arp_numdmx, {"Subcomponents", "pathport.arp.numdmx", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }},
|
|
|
|
{&hf_pp_arp_ip, {"IP", "pathport.arp.ip", FT_IPv4, 0, NULL, 0x0, NULL, HFILL }}
|
2014-01-13 22:24:53 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
/* Setup protocol subtree array */
|
|
|
|
static gint *ett[] = {
|
|
|
|
&ett_pathport,
|
|
|
|
&ett_pp_pdu,
|
|
|
|
&ett_pp_tlv,
|
|
|
|
&ett_pp_data
|
|
|
|
};
|
|
|
|
|
|
|
|
/* Register the protocol name and description */
|
|
|
|
proto_pathport = proto_register_protocol("Pathport Protocol", "Pathport", "pathport");
|
|
|
|
|
|
|
|
/* Required function calls to register the header fields and subtrees */
|
|
|
|
proto_register_field_array(proto_pathport, hf, array_length(hf));
|
|
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
proto_reg_handoff_pathport(void)
|
|
|
|
{
|
|
|
|
static dissector_handle_t pathport_handle;
|
|
|
|
|
2015-12-09 03:49:44 +00:00
|
|
|
pathport_handle = create_dissector_handle(dissect_pathport, proto_pathport);
|
2015-07-13 00:40:31 +00:00
|
|
|
heur_dissector_add("udp", dissect_pathport_heur, "Pathport over UDP", "pathport_udp", proto_pathport, HEURISTIC_ENABLE);
|
2014-01-13 22:24:53 +00:00
|
|
|
dissector_add_uint("udp.port", PATHPORT_UDP_PORT, pathport_handle);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Editor modelines - http://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:
|
|
|
|
*/
|