|
|
|
|
@ -0,0 +1,360 @@
|
|
|
|
|
/* packet-rtacser.c
|
|
|
|
|
* Routines for Schweitzer Engineering Laboratories "Real-Time Automation Controller" (RTAC) Serial Line Dissection
|
|
|
|
|
* By Chris Bontje (cbontje[AT]gmail.com)
|
|
|
|
|
* Copyright May 2013
|
|
|
|
|
*
|
|
|
|
|
* $Id$
|
|
|
|
|
*
|
|
|
|
|
************************************************************************************************
|
|
|
|
|
* Wireshark - Network traffic analyzer
|
|
|
|
|
* By Gerald Combs <gerald@wireshark.org>
|
|
|
|
|
* Copyright 1998 Gerald Combs
|
|
|
|
|
*
|
|
|
|
|
* This program is free software; you can redistribute it and/or
|
|
|
|
|
* modify it under the terms of the GNU General Public License
|
|
|
|
|
* as published by the Free Software Foundation; either version 2
|
|
|
|
|
* of the License, or (at your option) any later version.
|
|
|
|
|
*
|
|
|
|
|
* This program is distributed in the hope that it will be useful,
|
|
|
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
|
* GNU General Public License for more details.
|
|
|
|
|
*
|
|
|
|
|
* You should have received a copy of the GNU General Public License
|
|
|
|
|
* along with this program; if not, write to the Free Software
|
|
|
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
|
|
|
*
|
|
|
|
|
************************************************************************************************
|
|
|
|
|
* Dissector Notes:
|
|
|
|
|
*
|
|
|
|
|
* The RTAC product family (SEL-3530, SEL-2241, SEL-3505) is a Linux-based Automation Controller
|
|
|
|
|
* product that is capable of interfacing with SEL and 3rd-party equipment using a variety of
|
|
|
|
|
* standard industrial protocols such as SEL FM, DNP3, Modbus, C37.118, Telegyr 8979 and others.
|
|
|
|
|
* Each protocol instance (master/client or slave/server) is configured to utilize either Ethernet
|
|
|
|
|
* or EIA-232/485 serial connectivity with protocol variations for each medium taken into account.
|
|
|
|
|
*
|
|
|
|
|
* The configuration software for the RTAC platform is named AcSELerator RTAC (SEL-5033) and
|
|
|
|
|
* is used to set up all communications and user logic for the controller as well as provide
|
|
|
|
|
* downloading and online debugging facilities. One particularly useful aspect of the online
|
|
|
|
|
* debugging capabilities is a robust Communication Monitor tool that can show raw data streams
|
|
|
|
|
* from either serial or Ethernet interfaces. Many similar products have this same capability
|
|
|
|
|
* but the RTAC software goes a step beyond by providing a "save-as" function to save all captured
|
|
|
|
|
* data into pcap format for further analysis in Wireshark.
|
|
|
|
|
*
|
|
|
|
|
* All Ethernet-style capture files will have a packets with a "Linux Cooked Capture" header
|
|
|
|
|
* including the "source" MAC address of the device responsible for the generation of the message
|
|
|
|
|
* and the TCP/IP header(s) maintained from the original conversation. The application data from the
|
|
|
|
|
* message will follow as per a standard Wireshark packet.
|
|
|
|
|
*
|
|
|
|
|
* Serial-based pcap capture files were orignally stored using "User 0" DLT type 147 to specify a
|
|
|
|
|
* user-defined dissector for pcap data but this format was later modified to specify a custom DLT type
|
|
|
|
|
* known as LINKTYPE_RTAC_SERIAL (DLT 250). The pcap file data portion contains a standard 12-byte serial
|
|
|
|
|
* header followed by the application payload data from actual rx/tx activity on the line. Some useful
|
|
|
|
|
* information can be retrieved from the 12-byte header information, such as conversation time-stamps,
|
|
|
|
|
* UART function and EIA-232 serial control line states at the time of the message.
|
|
|
|
|
*
|
|
|
|
|
* This dissector will automatically be used for any newer-style DLT 250 files, and the payload protocol
|
|
|
|
|
* can be configured via built-in preferences to use whatever standardized industrial protocol is present
|
|
|
|
|
* on the line for attempted dissection (selfm, mbrtu, dnp3.udp, synphasor). Older pcap files of DLT type 147
|
|
|
|
|
* can be used by setting the DLT_USER preferences configuration of User 0 (DLT=147) with a 'Header Size'
|
|
|
|
|
* of '12' and a 'Header Protocol' of 'rtacser'. The payload protocol should be set to use the protocol
|
|
|
|
|
* dissector for the data that is present on the line (again, selfm, mbrtu, dnp3.udp or synphasor). */
|
|
|
|
|
|
|
|
|
|
#include "config.h"
|
|
|
|
|
|
|
|
|
|
#include <epan/packet.h>
|
|
|
|
|
#include <epan/prefs.h>
|
|
|
|
|
|
|
|
|
|
/* Initialize the protocol and registered fields */
|
|
|
|
|
static int proto_rtacser = -1;
|
|
|
|
|
static int hf_rtacser_timestamp = -1;
|
|
|
|
|
static int hf_rtacser_event_type = -1;
|
|
|
|
|
static int hf_rtacser_ctrl_cts = -1;
|
|
|
|
|
static int hf_rtacser_ctrl_dcd = -1;
|
|
|
|
|
static int hf_rtacser_ctrl_dsr = -1;
|
|
|
|
|
static int hf_rtacser_ctrl_rts = -1;
|
|
|
|
|
static int hf_rtacser_ctrl_dtr = -1;
|
|
|
|
|
static int hf_rtacser_ctrl_ring = -1;
|
|
|
|
|
static int hf_rtacser_ctrl_mbok = -1;
|
|
|
|
|
static int hf_rtacser_footer = -1;
|
|
|
|
|
static int hf_rtacser_data = -1;
|
|
|
|
|
|
|
|
|
|
/* Initialize the subtree pointers */
|
|
|
|
|
static gint ett_rtacser = -1;
|
|
|
|
|
static gint ett_rtacser_cl = -1;
|
|
|
|
|
|
|
|
|
|
/* Globals for RTAC Serial Preferences */
|
|
|
|
|
static guint global_rtacser_payload_proto = 0; /* No Payload, by default */
|
|
|
|
|
|
|
|
|
|
/* Handles for Payload Protocols */
|
|
|
|
|
static dissector_handle_t selfm_handle;
|
|
|
|
|
static dissector_handle_t dnp3_handle;
|
|
|
|
|
static dissector_handle_t modbus_handle;
|
|
|
|
|
static dissector_handle_t synphasor_handle;
|
|
|
|
|
|
|
|
|
|
#define RTACSER_HEADER_LEN 12
|
|
|
|
|
|
|
|
|
|
/* Bit-masks for EIA-232 serial control lines */
|
|
|
|
|
#define RTACSER_CTRL_CTS 0x01
|
|
|
|
|
#define RTACSER_CTRL_DCD 0x02
|
|
|
|
|
#define RTACSER_CTRL_DSR 0x04
|
|
|
|
|
#define RTACSER_CTRL_RTS 0x08
|
|
|
|
|
#define RTACSER_CTRL_DTR 0x10
|
|
|
|
|
#define RTACSER_CTRL_RING 0x20
|
|
|
|
|
#define RTACSER_CTRL_MBOK 0x40
|
|
|
|
|
|
|
|
|
|
/* Payload Protocol Types from Preferences */
|
|
|
|
|
#define RTACSER_PAYLOAD_NONE 0
|
|
|
|
|
#define RTACSER_PAYLOAD_SELFM 1
|
|
|
|
|
#define RTACSER_PAYLOAD_DNP3 2
|
|
|
|
|
#define RTACSER_PAYLOAD_MODBUS 3
|
|
|
|
|
#define RTACSER_PAYLOAD_SYNPHASOR 4
|
|
|
|
|
|
|
|
|
|
/* Event Types */
|
|
|
|
|
static const value_string rtacser_eventtype_vals[] = {
|
|
|
|
|
{ 0x00, "STATUS_CHANGE" },
|
|
|
|
|
{ 0x01, "DATA_TX_START" },
|
|
|
|
|
{ 0x02, "DATA_RX_START" },
|
|
|
|
|
{ 0x03, "DATA_TX_END" },
|
|
|
|
|
{ 0x04, "DATA_RX_END" },
|
|
|
|
|
{ 0x05, "CAPTURE_DATA_LOST" },
|
|
|
|
|
{ 0x06, "CAPTURE_COMPLETE" },
|
|
|
|
|
{ 0x07, "FRAMING_ERROR" },
|
|
|
|
|
{ 0x08, "PARITY_ERROR" },
|
|
|
|
|
{ 0x09, "SERIAL_BREAK_EVENT" },
|
|
|
|
|
{ 0x0A, "SERIAL_OVERFLOW_EVENT" },
|
|
|
|
|
{ 0, NULL }
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
static const enum_val_t rtacser_payload_proto_type[] = {
|
|
|
|
|
{ "NONE ", "NONE ", RTACSER_PAYLOAD_NONE },
|
|
|
|
|
{ "SEL FM ", "SEL FM ", RTACSER_PAYLOAD_SELFM },
|
|
|
|
|
{ "DNP3 ", "DNP3 ", RTACSER_PAYLOAD_DNP3 },
|
|
|
|
|
{ "MODBUS RTU", "MODBUS RTU", RTACSER_PAYLOAD_MODBUS },
|
|
|
|
|
{ "SYNPHASOR ", "SYNPHASOR ", RTACSER_PAYLOAD_SYNPHASOR },
|
|
|
|
|
{ NULL, NULL, 0 }
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/******************************************************************************************************/
|
|
|
|
|
/* Code to dissect RTAC Serial-Line Protocol packets */
|
|
|
|
|
/******************************************************************************************************/
|
|
|
|
|
static void
|
|
|
|
|
dissect_rtacser_data(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
|
|
|
{
|
|
|
|
|
/* Set up structures needed to add the protocol subtree and manage it */
|
|
|
|
|
proto_item *rtacser_item, *ts_item, *cl_item, *data_payload;
|
|
|
|
|
proto_tree *rtacser_tree, *cl_tree;
|
|
|
|
|
int offset=0, len=0;
|
|
|
|
|
guint32 timestamp1, timestamp2;
|
|
|
|
|
gboolean cts, dcd, dsr, rts, dtr, ring, mbok;
|
|
|
|
|
tvbuff_t *payload_tvb;
|
|
|
|
|
|
|
|
|
|
len = RTACSER_HEADER_LEN;
|
|
|
|
|
|
|
|
|
|
/* Make entries in Protocol column on summary display */
|
|
|
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "RTAC Serial");
|
|
|
|
|
col_clear(pinfo->cinfo, COL_INFO);
|
|
|
|
|
|
|
|
|
|
if (tree) {
|
|
|
|
|
|
|
|
|
|
rtacser_item = proto_tree_add_protocol_format(tree, proto_rtacser, tvb, 0, len, "RTAC Serial Line");
|
|
|
|
|
rtacser_tree = proto_item_add_subtree(rtacser_item, ett_rtacser);
|
|
|
|
|
|
|
|
|
|
/* Time-stamp is stored as 2 x 32-bit unsigned integers, the left and right-hand side of the decimal point respectively */
|
|
|
|
|
/* The format mirrors the timeval struct - absolute Epoch time (seconds since 1/1/1970) with an added microsecond component */
|
|
|
|
|
timestamp1 = tvb_get_ntohl(tvb, offset);
|
|
|
|
|
timestamp2 = tvb_get_ntohl(tvb, offset+4);
|
|
|
|
|
ts_item = proto_tree_add_item(rtacser_tree, hf_rtacser_timestamp, tvb, offset, 8, ENC_BIG_ENDIAN);
|
|
|
|
|
proto_item_set_text(ts_item, "Arrived At Time: %u.%u" , timestamp1, timestamp2);
|
|
|
|
|
offset += 8;
|
|
|
|
|
|
|
|
|
|
/* Add event type to tree */
|
|
|
|
|
proto_tree_add_item(rtacser_tree, hf_rtacser_event_type, tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
|
|
|
offset += 1;
|
|
|
|
|
|
|
|
|
|
/* Retrieve and add EIA-232 serial control lines to tree */
|
|
|
|
|
cts = tvb_get_guint8(tvb, offset) & RTACSER_CTRL_CTS;
|
|
|
|
|
dcd = tvb_get_guint8(tvb, offset) & RTACSER_CTRL_DCD;
|
|
|
|
|
dsr = tvb_get_guint8(tvb, offset) & RTACSER_CTRL_DSR;
|
|
|
|
|
rts = tvb_get_guint8(tvb, offset) & RTACSER_CTRL_RTS;
|
|
|
|
|
dtr = tvb_get_guint8(tvb, offset) & RTACSER_CTRL_DTR;
|
|
|
|
|
ring = tvb_get_guint8(tvb, offset) & RTACSER_CTRL_RING;
|
|
|
|
|
mbok = tvb_get_guint8(tvb, offset) & RTACSER_CTRL_MBOK;
|
|
|
|
|
|
|
|
|
|
cl_item = proto_tree_add_text(rtacser_tree, tvb, offset, 1, "Control Lines");
|
|
|
|
|
cl_tree = proto_item_add_subtree(cl_item, ett_rtacser_cl);
|
|
|
|
|
|
|
|
|
|
proto_item_append_text(cl_item, " (");
|
|
|
|
|
(cts) ? proto_item_append_text(cl_item, "CTS, ") : proto_item_append_text(cl_item, "/CTS, ");
|
|
|
|
|
(dcd) ? proto_item_append_text(cl_item, "DCD, ") : proto_item_append_text(cl_item, "/DCD, ");
|
|
|
|
|
(dsr) ? proto_item_append_text(cl_item, "DSR, ") : proto_item_append_text(cl_item, "/DSR, ");
|
|
|
|
|
(rts) ? proto_item_append_text(cl_item, "RTS, ") : proto_item_append_text(cl_item, "/RTS, ");
|
|
|
|
|
(dtr) ? proto_item_append_text(cl_item, "DTR, ") : proto_item_append_text(cl_item, "/DTR, ");
|
|
|
|
|
(ring) ? proto_item_append_text(cl_item, "RING, ") : proto_item_append_text(cl_item, "/RING, ");
|
|
|
|
|
(mbok) ? proto_item_append_text(cl_item, "MBOK") : proto_item_append_text(cl_item, "/MBOK");
|
|
|
|
|
proto_item_append_text(cl_item, ")");
|
|
|
|
|
|
|
|
|
|
proto_tree_add_item(cl_tree, hf_rtacser_ctrl_cts, tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
|
|
|
proto_tree_add_item(cl_tree, hf_rtacser_ctrl_dcd, tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
|
|
|
proto_tree_add_item(cl_tree, hf_rtacser_ctrl_dsr, tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
|
|
|
proto_tree_add_item(cl_tree, hf_rtacser_ctrl_rts, tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
|
|
|
proto_tree_add_item(cl_tree, hf_rtacser_ctrl_dtr, tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
|
|
|
proto_tree_add_item(cl_tree, hf_rtacser_ctrl_ring, tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
|
|
|
proto_tree_add_item(cl_tree, hf_rtacser_ctrl_mbok, tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
|
|
|
offset += 1;
|
|
|
|
|
|
|
|
|
|
/* 2-byte footer with unknown purpose */
|
|
|
|
|
proto_tree_add_item(rtacser_tree, hf_rtacser_footer, tvb, offset, 2, ENC_BIG_ENDIAN);
|
|
|
|
|
offset += 2;
|
|
|
|
|
|
|
|
|
|
/* If no payload dissector has been selected, indicate to the user the preferences options */
|
|
|
|
|
if ((tvb_reported_length_remaining(tvb, offset) > 0) && (global_rtacser_payload_proto == RTACSER_PAYLOAD_NONE)) {
|
|
|
|
|
data_payload = proto_tree_add_item(tree, hf_rtacser_data, tvb, offset, -1, ENC_NA);
|
|
|
|
|
proto_item_set_text(data_payload,"Payload Protocol not selected. Check 'Preferences-> Protocols-> RTAC Serial' for options");
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
} /* tree */
|
|
|
|
|
|
|
|
|
|
/* Determine correct message type and call appropriate dissector */
|
|
|
|
|
if (tvb_reported_length_remaining(tvb, RTACSER_HEADER_LEN) > 0) {
|
|
|
|
|
|
|
|
|
|
switch (global_rtacser_payload_proto) {
|
|
|
|
|
case RTACSER_PAYLOAD_SELFM:
|
|
|
|
|
payload_tvb = tvb_new_subset_remaining(tvb, RTACSER_HEADER_LEN);
|
|
|
|
|
call_dissector(selfm_handle, payload_tvb, pinfo, tree);
|
|
|
|
|
break;
|
|
|
|
|
case RTACSER_PAYLOAD_DNP3:
|
|
|
|
|
payload_tvb = tvb_new_subset_remaining(tvb, RTACSER_HEADER_LEN);
|
|
|
|
|
call_dissector(dnp3_handle, payload_tvb, pinfo, tree);
|
|
|
|
|
break;
|
|
|
|
|
case RTACSER_PAYLOAD_MODBUS:
|
|
|
|
|
payload_tvb = tvb_new_subset_remaining(tvb, RTACSER_HEADER_LEN);
|
|
|
|
|
call_dissector(modbus_handle, payload_tvb, pinfo, tree);
|
|
|
|
|
break;
|
|
|
|
|
case RTACSER_PAYLOAD_SYNPHASOR:
|
|
|
|
|
payload_tvb = tvb_new_subset_remaining(tvb, RTACSER_HEADER_LEN);
|
|
|
|
|
call_dissector(synphasor_handle, payload_tvb, pinfo, tree);
|
|
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/******************************************************************************************************/
|
|
|
|
|
/* Dissect RTAC Serial-line protocol payload */
|
|
|
|
|
/******************************************************************************************************/
|
|
|
|
|
static int
|
|
|
|
|
dissect_rtacser(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
|
|
|
|
|
{
|
|
|
|
|
gint length = tvb_length(tvb);
|
|
|
|
|
|
|
|
|
|
/* Check for a RTAC Serial packet. It should be at least 12 bytes */
|
|
|
|
|
if(length < 12) {
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
dissect_rtacser_data(tvb, pinfo, tree);
|
|
|
|
|
|
|
|
|
|
return tvb_length(tvb);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/******************************************************************************************************/
|
|
|
|
|
/* Register the protocol with Wireshark */
|
|
|
|
|
/******************************************************************************************************/
|
|
|
|
|
void proto_reg_handoff_rtacser(void);
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
proto_register_rtacser(void)
|
|
|
|
|
{
|
|
|
|
|
/* RTAC Serial Protocol header fields */
|
|
|
|
|
static hf_register_info rtacser_hf[] = {
|
|
|
|
|
{ &hf_rtacser_timestamp,
|
|
|
|
|
{ "Timestamp", "rtacser.timestamp", FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL }},
|
|
|
|
|
{ &hf_rtacser_event_type,
|
|
|
|
|
{ "Event Type", "rtacser.eventtype", FT_UINT8, BASE_HEX, rtacser_eventtype_vals, 0x0, NULL, HFILL }},
|
|
|
|
|
{ &hf_rtacser_ctrl_cts,
|
|
|
|
|
{ "CTS", "rtacser.cts", FT_UINT8, BASE_DEC, NULL, RTACSER_CTRL_CTS, NULL, HFILL }},
|
|
|
|
|
{ &hf_rtacser_ctrl_dcd,
|
|
|
|
|
{ "DCD", "rtacser.dcd", FT_UINT8, BASE_DEC, NULL, RTACSER_CTRL_DCD, NULL, HFILL }},
|
|
|
|
|
{ &hf_rtacser_ctrl_dsr,
|
|
|
|
|
{ "DSR", "rtacser.dsr", FT_UINT8, BASE_DEC, NULL, RTACSER_CTRL_DSR, NULL, HFILL }},
|
|
|
|
|
{ &hf_rtacser_ctrl_rts,
|
|
|
|
|
{ "RTS", "rtacser.rts", FT_UINT8, BASE_DEC, NULL, RTACSER_CTRL_RTS, NULL, HFILL }},
|
|
|
|
|
{ &hf_rtacser_ctrl_dtr,
|
|
|
|
|
{ "DTR", "rtacser.dtr", FT_UINT8, BASE_DEC, NULL, RTACSER_CTRL_DTR, NULL, HFILL }},
|
|
|
|
|
{ &hf_rtacser_ctrl_ring,
|
|
|
|
|
{ "RING", "rtacser.ring", FT_UINT8, BASE_DEC, NULL, RTACSER_CTRL_RING, NULL, HFILL }},
|
|
|
|
|
{ &hf_rtacser_ctrl_mbok,
|
|
|
|
|
{ "MBOK", "rtacser.mbok", FT_UINT8, BASE_DEC, NULL, RTACSER_CTRL_MBOK, NULL, HFILL }},
|
|
|
|
|
{ &hf_rtacser_footer,
|
|
|
|
|
{ "Footer", "rtacser.footer", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL }},
|
|
|
|
|
{ &hf_rtacser_data,
|
|
|
|
|
{ "Payload data", "rtacser.data", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
|
|
|
|
|
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/* Setup protocol subtree array */
|
|
|
|
|
static gint *ett[] = {
|
|
|
|
|
&ett_rtacser,
|
|
|
|
|
&ett_rtacser_cl,
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
module_t *rtacser_module;
|
|
|
|
|
|
|
|
|
|
/* Register the protocol name and description */
|
|
|
|
|
proto_rtacser = proto_register_protocol("RTAC Serial", "RTAC Serial", "rtacser");
|
|
|
|
|
|
|
|
|
|
/* Registering protocol to be called by another dissector */
|
|
|
|
|
new_register_dissector("rtacser", dissect_rtacser, proto_rtacser);
|
|
|
|
|
|
|
|
|
|
/* Required function calls to register the header fields and subtrees used */
|
|
|
|
|
proto_register_field_array(proto_rtacser, rtacser_hf, array_length(rtacser_hf));
|
|
|
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
|
|
|
|
|
|
|
|
/* Register required preferences for RTAC Serial Payload Protocol */
|
|
|
|
|
rtacser_module = prefs_register_protocol(proto_rtacser, proto_reg_handoff_rtacser);
|
|
|
|
|
|
|
|
|
|
/* RTAC Serial Preference - Payload Protocol in use */
|
|
|
|
|
prefs_register_enum_preference(rtacser_module, "rtacserial_payload_proto",
|
|
|
|
|
"Payload Protocol Type",
|
|
|
|
|
"Payload Protocol Type",
|
|
|
|
|
&global_rtacser_payload_proto,
|
|
|
|
|
rtacser_payload_proto_type,
|
|
|
|
|
TRUE);
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/******************************************************************************************************/
|
|
|
|
|
/* If this dissector uses sub-dissector registration add a registration routine.
|
|
|
|
|
This format is required because a script is used to find these routines and
|
|
|
|
|
create the code that calls these routines.
|
|
|
|
|
*/
|
|
|
|
|
/******************************************************************************************************/
|
|
|
|
|
void
|
|
|
|
|
proto_reg_handoff_rtacser(void)
|
|
|
|
|
{
|
|
|
|
|
static int rtacser_prefs_initialized = FALSE;
|
|
|
|
|
static dissector_handle_t rtacser_handle;
|
|
|
|
|
|
|
|
|
|
/* Make sure to use RTAC Serial Protocol Preferences field to determine payload protocol to use for decoding */
|
|
|
|
|
if (! rtacser_prefs_initialized) {
|
|
|
|
|
rtacser_handle = new_create_dissector_handle(dissect_rtacser, proto_rtacser);
|
|
|
|
|
rtacser_prefs_initialized = TRUE;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Create a handle for each expected payload protocol that can be called via the Preferences */
|
|
|
|
|
selfm_handle = find_dissector("selfm");
|
|
|
|
|
dnp3_handle = find_dissector("dnp3.udp");
|
|
|
|
|
modbus_handle = find_dissector("mbrtu");
|
|
|
|
|
synphasor_handle = find_dissector("synphasor");
|
|
|
|
|
|
|
|
|
|
dissector_add_uint("wtap_encap", WTAP_ENCAP_RTAC_SERIAL, rtacser_handle);
|
|
|
|
|
}
|
Pascal Quantin