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wireshark/epan/dissectors/packet-busmirroring.c

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/* packet-busmirroring.c
* Routines for BusMirroring protocol packet disassembly
* Copyright 2023, Haiyun Liu <liu0hy@gmail.com>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
* Bus Mirroring is an AUTOSAR Basic Software module. Its purpose is the replication of
* the traffic and the state of internal buses to an external bus, such that a tester
* connected to that external bus can monitor internal buses for debugging purposes.
* When mirroring to an IP destination bus like Ethernet, the Bus Mirroring module applies
* a protocol to pack several smaller frames (e.g. CAN, LIN or FlexRay) into one large
* frame of the destination bus.
* For more information, see AUTOSAR "Specification of Bus Mirroring", Section 7.4
* "Mirroring to FlexRay, IP, and CDD":
* https://www.autosar.org/fileadmin/standards/R22-11/CP/AUTOSAR_SWS_BusMirroring.pdf
*/
#include "config.h"
#include <epan/packet.h>
#include <epan/expert.h>
#define BUSMIRRORING_UDP_PORT 30511
enum network_type
{
NETWORK_TYPE_INVALID = 0x00,
NETWORK_TYPE_CAN = 0x01,
NETWORK_TYPE_LIN = 0x02,
NETWORK_TYPE_FLEXRAY = 0x03,
NETWORK_TYPE_ETHERNET = 0x04
};
static int proto_busmirroring;
static int hf_protocol_version;
static int hf_sequence_number;
static int hf_header_timestamp;
static int hf_seconds;
static int hf_nanoseconds;
static int hf_data_length;
static int hf_timestamp;
static int hf_network_state_available;
static int hf_frame_id_available;
static int hf_payload_available;
static int hf_network_type;
static int hf_frames_lost;
static int hf_bus_online;
static int hf_can_error_passive;
static int hf_can_bus_off;
static int hf_can_tx_error_count;
static int hf_lin_header_tx_error;
static int hf_lin_tx_error;
static int hf_lin_rx_error;
static int hf_lin_rx_no_response;
static int hf_flexray_bus_synchronous;
static int hf_flexray_normal_active;
static int hf_flexray_syntax_error;
static int hf_flexray_content_error;
static int hf_flexray_boundary_violation;
static int hf_flexray_tx_conflict;
static int hf_network_id;
static int hf_network_state;
static int hf_frame_id;
static int hf_can_id_type;
static int hf_can_frame_type;
static int hf_can_id;
static int hf_lin_pid;
static int hf_flexray_channel_b;
static int hf_flexray_channel_a;
static int hf_flexray_slot_valid;
static int hf_flexray_slot_id;
static int hf_flexray_cycle;
static int hf_payload_length;
static int hf_payload;
static int ett_busmirroring;
static int ett_header_timestamp;
static int ett_data_item;
static int ett_network_state;
static int ett_frame_id;
static expert_field ei_data_incomplete;
static expert_field ei_data_item_incomplete;
static expert_field ei_network_type_invalid;
static expert_field ei_can_id_invalid;
static expert_field ei_lin_pid_invalid;
static expert_field ei_can_length_invalid;
static expert_field ei_lin_length_invalid;
static const uint8_t pid_table[] = {
0x80, 0xC1, 0x42, 0x03, 0xC4, 0x85, 0x06, 0x47,
0x08, 0x49, 0xCA, 0x8B, 0x4C, 0x0D, 0x8E, 0xCF,
0x50, 0x11, 0x92, 0xD3, 0x14, 0x55, 0xD6, 0x97,
0xD8, 0x99, 0x1A, 0x5B, 0x9C, 0xDD, 0x5E, 0x1F,
0x20, 0x61, 0xE2, 0xA3, 0x64, 0x25, 0xA6, 0xE7,
0xA8, 0xE9, 0x6A, 0x2B, 0xEC, 0xAD, 0x2E, 0x6F,
0xF0, 0xB1, 0x32, 0x73, 0xB4, 0xF5, 0x76, 0x37,
0x78, 0x39, 0xBA, 0xFB, 0x3C, 0x7D, 0xFE, 0xBF
};
static bool is_lin_pid_valid(uint8_t pid) {
return pid == pid_table[pid & 0x3F];
}
static int
dissect_busmirroring(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree _U_, void *data _U_)
{
static const uint32_t header_size = 14;
uint32_t buffer_length = tvb_captured_length(tvb);
if (buffer_length < header_size)
{
return 0;
}
col_set_str(pinfo->cinfo, COL_PROTOCOL, "BUSMIRRORING");
proto_item *ti = proto_tree_add_item(tree, proto_busmirroring, tvb, 0, -1, ENC_NA);
proto_tree *busmirroring_tree = proto_item_add_subtree(ti, ett_busmirroring);
proto_tree_add_item(busmirroring_tree, hf_protocol_version, tvb, 0, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(busmirroring_tree, hf_sequence_number, tvb, 1, 1, ENC_BIG_ENDIAN);
nstime_t header_timestamp = {0, 0};
header_timestamp.secs = tvb_get_guint48(tvb, 2, ENC_BIG_ENDIAN);
header_timestamp.nsecs = tvb_get_guint32(tvb, 8, ENC_BIG_ENDIAN);
proto_item *ht_item = proto_tree_add_time(busmirroring_tree, hf_header_timestamp, tvb, 2, 10, &header_timestamp);
proto_tree *ht_tree = proto_item_add_subtree(ht_item, ett_header_timestamp);
proto_tree_add_item(ht_tree, hf_seconds, tvb, 2, 6, ENC_BIG_ENDIAN);
proto_tree_add_item(ht_tree, hf_nanoseconds, tvb, 8, 4, ENC_BIG_ENDIAN);
uint32_t data_length = 0;
proto_tree_add_item_ret_uint(busmirroring_tree, hf_data_length, tvb, 12, 2, ENC_BIG_ENDIAN, &data_length);
if (header_size + data_length > buffer_length) {
expert_add_info(pinfo, ti, &ei_data_incomplete);
}
int data_item_index = 0;
uint32_t offset = header_size;
while (offset < buffer_length)
{
int data_item_start = offset;
proto_item *data_item = proto_tree_add_item(busmirroring_tree, proto_busmirroring, tvb, offset, 0, ENC_NA);
proto_item_set_text(data_item, "Data Item #%d", data_item_index);
++data_item_index;
col_clear(pinfo->cinfo, COL_INFO);
col_add_fstr(pinfo->cinfo, COL_INFO, "Busmirroring Seq=%u Len=%u DataItem=%u",
tvb_get_guint8(tvb, 1), tvb_get_guint16(tvb, 12, ENC_BIG_ENDIAN), data_item_index);
if (offset + 2 > buffer_length) {
expert_add_info(pinfo, data_item, &ei_data_item_incomplete);
return buffer_length;
}
proto_tree *data_tree = proto_item_add_subtree(data_item, ett_data_item);
proto_tree_add_item(data_tree, hf_timestamp, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_item_set_len(data_item, offset - data_item_start);
if (offset + 1 > buffer_length) {
expert_add_info(pinfo, data_item, &ei_data_item_incomplete);
return buffer_length;
}
uint8_t flags = tvb_get_guint8(tvb, offset);
proto_tree_add_item(data_tree, hf_network_state_available, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(data_tree, hf_frame_id_available, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(data_tree, hf_payload_available, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(data_tree, hf_network_type, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
proto_item_set_len(data_item, offset - data_item_start);
if (offset + 1 > buffer_length) {
expert_add_info(pinfo, data_item, &ei_data_item_incomplete);
return buffer_length;
}
proto_tree_add_item(data_tree, hf_network_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
proto_item_set_len(data_item, offset - data_item_start);
bool is_can_fd = false;
uint8_t type = flags & 0x1F;
switch (type)
{
case NETWORK_TYPE_CAN:
{
proto_item_append_text(data_item, ": CAN");
}
break;
case NETWORK_TYPE_LIN:
{
proto_item_append_text(data_item, ": LIN");
}
break;
case NETWORK_TYPE_FLEXRAY:
{
proto_item_append_text(data_item, ": FlexRay");
}
break;
default:
expert_add_info(pinfo, data_item, &ei_network_type_invalid);
break;
}
uint8_t has_network_state = flags & 0x80;
if (has_network_state)
{
if (offset + 1 > buffer_length) {
expert_add_info(pinfo, data_item, &ei_data_item_incomplete);
return buffer_length;
}
proto_item *ns_item = proto_tree_add_item(data_item, hf_network_state, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree *ns_tree = proto_item_add_subtree(ns_item, ett_network_state);
proto_tree_add_item(ns_tree, hf_frames_lost, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(ns_tree, hf_bus_online, tvb, offset, 1, ENC_BIG_ENDIAN);
switch (type)
{
case NETWORK_TYPE_CAN:
{
proto_tree_add_item(ns_tree, hf_can_error_passive, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(ns_tree, hf_can_bus_off, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(ns_tree, hf_can_tx_error_count, tvb, offset, 1, ENC_BIG_ENDIAN);
}
break;
case NETWORK_TYPE_LIN:
{
proto_tree_add_item(ns_tree, hf_lin_header_tx_error, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(ns_tree, hf_lin_tx_error, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(ns_tree, hf_lin_rx_error, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(ns_tree, hf_lin_rx_no_response, tvb, offset, 1, ENC_BIG_ENDIAN);
}
break;
case NETWORK_TYPE_FLEXRAY:
{
proto_tree_add_item(ns_tree, hf_flexray_bus_synchronous, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(ns_tree, hf_flexray_normal_active, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(ns_tree, hf_flexray_syntax_error, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(ns_tree, hf_flexray_content_error, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(ns_tree, hf_flexray_boundary_violation, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(ns_tree, hf_flexray_tx_conflict, tvb, offset, 1, ENC_BIG_ENDIAN);
}
default:
break;
}
offset += 1;
proto_item_set_len(data_item, offset - data_item_start);
}
uint8_t has_frame_id = flags & 0x40;
if (has_frame_id)
{
switch (type)
{
case NETWORK_TYPE_CAN:
{
if (offset + 4 > buffer_length) {
expert_add_info(pinfo, data_item, &ei_data_item_incomplete);
return buffer_length;
}
proto_item *frame_id_item = proto_tree_add_item(data_item, hf_frame_id, tvb, offset, 4, ENC_BIG_ENDIAN);
proto_tree *frame_id_tree = proto_item_add_subtree(frame_id_item, ett_frame_id);
uint8_t can_id_type = tvb_get_guint8(tvb, offset) & 0x80;
is_can_fd = tvb_get_guint8(tvb, offset) & 0x40;
proto_tree_add_item(frame_id_tree, hf_can_id_type, tvb, offset, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(frame_id_tree, hf_can_frame_type, tvb, offset, 4, ENC_BIG_ENDIAN);
uint32_t can_id = 0;
proto_tree_add_item_ret_uint(frame_id_tree, hf_can_id, tvb, offset, 4, ENC_BIG_ENDIAN, &can_id);
if (can_id_type == 0 && can_id > 0x7FF) {
expert_add_info(pinfo, frame_id_item, &ei_can_id_invalid);
}
offset += 4;
proto_item_set_len(data_item, offset - data_item_start);
}
break;
case NETWORK_TYPE_LIN:
{
if (offset + 1 > buffer_length) {
expert_add_info(pinfo, data_item, &ei_data_item_incomplete);
return buffer_length;
}
proto_item *frame_id_item = proto_tree_add_item(data_item, hf_frame_id, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree *frame_id_tree = proto_item_add_subtree(frame_id_item, ett_frame_id);
proto_tree_add_item(frame_id_tree, hf_lin_pid, tvb, offset, 1, ENC_BIG_ENDIAN);
uint8_t pid = tvb_get_guint8(tvb, offset);
if (!is_lin_pid_valid(pid)) {
expert_add_info(pinfo, frame_id_item, &ei_lin_pid_invalid);
}
offset += 1;
proto_item_set_len(data_item, offset - data_item_start);
}
break;
case NETWORK_TYPE_FLEXRAY:
{
if (offset + 3 > buffer_length) {
expert_add_info(pinfo, data_item, &ei_data_item_incomplete);
return buffer_length;
}
proto_item* frame_id_item = proto_tree_add_item(data_item, hf_frame_id, tvb, offset, 3, ENC_BIG_ENDIAN);
proto_tree *frame_id_tree = proto_item_add_subtree(frame_id_item, ett_frame_id);
proto_tree_add_item(frame_id_tree, hf_flexray_channel_b, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(frame_id_tree, hf_flexray_channel_a, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(frame_id_tree, hf_flexray_slot_valid, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(frame_id_tree, hf_flexray_slot_id, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(frame_id_tree, hf_flexray_cycle, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
proto_item_set_len(data_item, offset - data_item_start);
}
break;
default:
break;
}
}
uint8_t has_payload = flags & 0x20;
if (has_payload)
{
if (offset + 1 > buffer_length) {
expert_add_info(pinfo, data_item, &ei_data_item_incomplete);
return buffer_length;
}
uint32_t length = 0;
proto_item* pi = proto_tree_add_item_ret_uint(data_item, hf_payload_length, tvb, offset, 1, ENC_BIG_ENDIAN, &length);
switch (type)
{
case NETWORK_TYPE_CAN:
{
if (is_can_fd) {
if (length > 8 && length!=12 && length!=16 && length !=20 &&
length !=24 && length != 32 && length!=48 && length!=64 ) {
expert_add_info(pinfo, pi, &ei_can_length_invalid);
}
} else{
if (length > 8) {
expert_add_info(pinfo, pi, &ei_can_length_invalid);
}
}
}
break;
case NETWORK_TYPE_LIN:
{
if (length > 8) {
expert_add_info(pinfo, pi, &ei_lin_length_invalid);
}
}
break;
default:
break;
}
offset += 1;
proto_item_set_len(data_item, offset - data_item_start);
if (offset + length > buffer_length) {
expert_add_info(pinfo, data_item, &ei_data_item_incomplete);
return buffer_length;
}
proto_tree_add_item(data_item, hf_payload, tvb, offset, length, ENC_NA);
offset += length;
proto_item_set_len(data_item, offset - data_item_start);
}
} // while
return buffer_length;
}
void proto_register_busmirroring(void)
{
static const true_false_string can_id_type_names = {"Extended", "Standard"};
static const true_false_string can_frame_type_names = {"CAN FD", "CAN 2.0"};
static const value_string network_type_names[] = {
{1, "CAN"},
{2, "LIN"},
{3, "FlexRay"},
{4, "Ethernet"},
{0, NULL} };
static hf_register_info hf[] = {
{&hf_protocol_version,
{"Protocol Version", "busmirroring.protocol_version",
FT_UINT8, BASE_DEC,
NULL, 0x0,
NULL, HFILL}},
{&hf_sequence_number,
{"Sequence Number", "busmirroring.sequence_number",
FT_UINT8, BASE_DEC,
NULL, 0x0,
NULL, HFILL}},
{&hf_header_timestamp,
{"Timestamp", "busmirroring.header_timestamp",
FT_ABSOLUTE_TIME, ABSOLUTE_TIME_UTC,
NULL, 0x0,
NULL, HFILL}},
{&hf_seconds,
{"Seconds", "busmirroring.seconds",
FT_UINT48, BASE_DEC,
NULL, 0x0,
NULL, HFILL}},
{&hf_nanoseconds,
{"Nanoseconds", "busmirroring.nanoseconds",
FT_UINT32, BASE_DEC,
NULL, 0x0,
NULL, HFILL}},
{&hf_data_length,
{"Data Length", "busmirroring.data_length",
FT_UINT16, BASE_DEC,
NULL, 0x0,
NULL, HFILL}},
{&hf_timestamp,
{"Timestamp(10 µs)", "busmirroring.timestamp",
FT_UINT16, BASE_DEC,
NULL, 0x0,
NULL, HFILL}},
{&hf_network_state_available,
{"Network State", "busmirroring.network_state_available",
FT_BOOLEAN, 8,
TFS(&tfs_available_not_available), 0x80,
NULL, HFILL}},
{&hf_frame_id_available,
{"Frame ID", "busmirroring.frame_id_available",
FT_BOOLEAN, 8,
TFS(&tfs_available_not_available), 0x40,
NULL, HFILL}},
{&hf_payload_available,
{"Payload", "busmirroring.payload_available",
FT_BOOLEAN, 8,
TFS(&tfs_available_not_available), 0x20,
NULL, HFILL}},
{&hf_network_type,
{"Network Type", "busmirroring.network_type",
FT_UINT8, BASE_DEC,
VALS(network_type_names), 0x1F,
NULL, HFILL}},
{&hf_network_id,
{"Network ID", "busmirroring.network_id",
FT_UINT8, BASE_DEC,
NULL, 0x0,
NULL, HFILL}},
{&hf_network_state,
{"Network State", "busmirroring.network_state",
FT_UINT8, BASE_HEX,
NULL, 0x0,
NULL, HFILL}},
{&hf_frames_lost,
{"Frames Lost", "busmirroring.frames_lost",
FT_BOOLEAN, 8,
NULL, 0x80,
NULL, HFILL}},
{&hf_bus_online,
{"Bus Online", "busmirroring.bus_online",
FT_BOOLEAN, 8,
NULL, 0x40,
NULL, HFILL}},
{&hf_can_error_passive,
{"Error-Passive", "busmirroring.can_error_passive",
FT_BOOLEAN, 8,
NULL, 0x20,
NULL, HFILL}},
{&hf_can_bus_off,
{"Bus-Off", "busmirroring.can_bus_off",
FT_BOOLEAN, 8,
NULL, 0x10,
NULL, HFILL}},
{&hf_can_tx_error_count,
{"Tx Error Count(divided by 8)", "busmirroring.can_tx_error_count",
FT_UINT8, BASE_DEC,
NULL, 0x0F,
NULL, HFILL}},
{&hf_lin_header_tx_error,
{"Header Tx Error", "busmirroring.lin_header_tx_error",
FT_BOOLEAN, 8,
NULL, 0x08,
NULL, HFILL}},
{&hf_lin_tx_error,
{"Tx Error", "busmirroring.lin_tx_error",
FT_BOOLEAN, 8,
NULL, 0x04,
NULL, HFILL}},
{&hf_lin_rx_error,
{"Rx Error", "busmirroring.lin_rx_error",
FT_BOOLEAN, 8,
NULL, 0x02,
NULL, HFILL}},
{&hf_lin_rx_no_response,
{"Rx No Response", "busmirroring.lin_rx_no_response",
FT_BOOLEAN, 8,
NULL, 0x01,
NULL, HFILL}},
{&hf_flexray_bus_synchronous,
{"Bus Synchronous", "busmirroring.flexray_bus_synchronous",
FT_BOOLEAN, 8,
NULL, 0x20,
NULL, HFILL}},
{&hf_flexray_normal_active,
{"Normal Active", "busmirroring.flexray_normal_active",
FT_BOOLEAN, 8,
NULL, 0x10,
NULL, HFILL}},
{&hf_flexray_syntax_error,
{"Syntax Error", "busmirroring.flexray_syntax_error",
FT_BOOLEAN, 8,
NULL, 0x08,
NULL, HFILL}},
{&hf_flexray_content_error,
{"Content Error", "busmirroring.flexray_content_error",
FT_BOOLEAN, 8,
NULL, 0x04,
NULL, HFILL}},
{&hf_flexray_boundary_violation,
{"Boundary Violation", "busmirroring.flexray_boundary_violation",
FT_BOOLEAN, 8,
NULL, 0x02,
NULL, HFILL}},
{&hf_flexray_tx_conflict,
{"Tx Conflict", "busmirroring.flexray_tx_conflict",
FT_BOOLEAN, 8,
NULL, 0x01,
NULL, HFILL}},
{&hf_frame_id,
{"Frame ID", "busmirroring.frame_id",
FT_UINT32, BASE_HEX,
NULL, 0x0,
NULL, HFILL}},
{&hf_can_id_type,
{"CAN ID Type", "busmirroring.can_id_type",
FT_BOOLEAN, 32,
TFS(&can_id_type_names), 0x80000000,
NULL, HFILL}},
{&hf_can_frame_type,
{"CAN Frame Type", "busmirroring.can_frame_type",
FT_BOOLEAN, 32,
TFS(&can_frame_type_names), 0x40000000,
NULL, HFILL}},
{&hf_can_id,
{"CAN ID", "busmirroring.can_id",
FT_UINT32, BASE_HEX_DEC,
NULL, 0x1FFFFFFF,
NULL, HFILL}},
{&hf_lin_pid,
{"LIN PID", "busmirroring.lin_pid",
FT_UINT8, BASE_HEX_DEC,
NULL, 0x0,
NULL, HFILL}},
{&hf_flexray_channel_b,
{"Channel B", "busmirroring.flexray_channel_b",
FT_BOOLEAN, 16,
TFS(&tfs_available_not_available), 0x8000,
NULL, HFILL}},
{&hf_flexray_channel_a,
{"Channel A", "busmirroring.flexray_channel_a",
FT_BOOLEAN, 16,
TFS(&tfs_available_not_available), 0x4000,
NULL, HFILL}},
{&hf_flexray_slot_valid,
{"Slot", "busmirroring.flexray_slot_valid",
FT_BOOLEAN, 16,
TFS(&tfs_valid_not_valid), 0x0800,
NULL, HFILL}},
{&hf_flexray_slot_id,
{"Slot ID", "busmirroring.flexray_slot_id",
FT_UINT16, BASE_HEX_DEC,
NULL, 0x07FF,
NULL, HFILL}},
{&hf_flexray_cycle,
{"Cycle", "busmirroring.flexray_cycle",
FT_UINT8, BASE_DEC,
NULL, 0x0,
NULL, HFILL}},
{&hf_payload_length,
{"Payload Length", "busmirroring.payload_length",
FT_UINT8, BASE_DEC,
NULL, 0x0,
NULL, HFILL}},
{&hf_payload,
{"Payload", "busmirroring.payload",
FT_BYTES, BASE_NONE,
NULL, 0x0,
NULL, HFILL}}};
/* Setup protocol subtree array */
static int *ett[] = {
&ett_busmirroring,
&ett_header_timestamp,
&ett_data_item,
&ett_network_state,
&ett_frame_id};
proto_busmirroring = proto_register_protocol(
"Bus Mirroring Protocol", /* name */
"BusMirroring", /* short_name */
"busmirroring" /* filter_name */
);
proto_register_field_array(proto_busmirroring, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
static ei_register_info ei[] = {
{
&ei_data_incomplete,
{ "busmirroring.data_incomplete", PI_UNDECODED, PI_WARN,
"Data is incomplete", EXPFILL }
},
{
&ei_data_item_incomplete,
{ "busmirroring.data_item_incomplete", PI_UNDECODED, PI_WARN,
"Data item is incomplete", EXPFILL }
},
{
&ei_network_type_invalid,
{ "busmirroring.network_type_invalid", PI_PROTOCOL, PI_WARN,
"Network type is invalid", EXPFILL }
},
{
&ei_can_id_invalid,
{ "busmirroring.can_id_invalid", PI_PROTOCOL, PI_WARN,
"ID of CAN frame is invalid", EXPFILL }
},
{
&ei_lin_pid_invalid,
{ "busmirroring.lin_pid_invalid", PI_PROTOCOL, PI_WARN,
"PID of LIN frame is invalid", EXPFILL }
},
{
&ei_can_length_invalid,
{ "busmirroring.can_length_invalid", PI_PROTOCOL, PI_WARN,
"Length of CAN frame is invalid", EXPFILL }
},
{
&ei_lin_length_invalid,
{ "busmirroring.lin_length_invalid", PI_PROTOCOL, PI_WARN,
"Length of LIN frame is invalid", EXPFILL }
}
};
expert_module_t* expert_busmirroring = expert_register_protocol(proto_busmirroring);
expert_register_field_array(expert_busmirroring, ei, array_length(ei));
}
void proto_reg_handoff_busmirroring(void)
{
static dissector_handle_t busmirroring_handle;
busmirroring_handle = create_dissector_handle(dissect_busmirroring, proto_busmirroring);
dissector_add_uint_with_preference("udp.port", BUSMIRRORING_UDP_PORT, busmirroring_handle);
dissector_add_for_decode_as("udp.port", busmirroring_handle);
}
/*
* Editor modelines - https://www.wireshark.org/tools/modelines.html
*
* Local Variables:
* c-basic-offset: 2
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* ex: set shiftwidth=2 tabstop=8 expandtab:
* :indentSize=2:tabSize=8:noTabs=true:
*/
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