--- /dev/null
+/* packet-rtitcp.c
+ * Dissector for the RTI TCP Transport Protocol.
+ * Layer on top of TCP used to send Control messages
+ * to establish and maintain the connections as well as
+ * send RTPS data.
+ *
+ * (c) 2005-2015 Copyright, Real-Time Innovations, Inc.
+ * Real-Time Innovations, Inc.
+ * 232 East Java Drive
+ * Sunnyvale, CA 94089
+ *
+ * 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.
+ */
+
+#include "config.h"
+#include <glib.h>
+
+#include <epan/packet.h>
+#include <epan/expert.h>
+#include <epan/prefs.h>
+#include <epan/addr_resolv.h>
+#include <epan/wmem/wmem.h>
+#include <epan/conversation.h>
+#include <epan/dissectors/packet-tcp.h>
+
+#define RTITCP_MAGIC_NUMBER 0xdd54dd55
+#define RTPS_MAGIC_NUMBER 0x52545053
+#define RTITCP_CONTROL_MAGIC_COOKIE 0x2112A442
+#define RTITCP_CRC_MAGIC_NUMBER 0x43524332
+
+/* A sample #define of the minimum length (in bytes) of the protocol data.
+ * If data is received with fewer than this many bytes it is rejected by
+ * the current dissector. */
+#define RTITCP_MIN_LENGTH 8
+#define NUMBER_2E30 1073741824
+
+#define IDENTITY_BIND_REQUEST (0x0C01)
+#define IDENTITY_BIND_INDICATION (0x0C11)
+#define IDENTITY_BIND_RESPONSE (0x0D01)
+#define IDENTITY_BIND_ERROR (0x0D11)
+
+#define SERVER_LOGICAL_PORT_REQUEST (0x0C02)
+#define SERVER_LOGICAL_PORT_INDICATION (0x0C12)
+#define SERVER_LOGICAL_PORT_RESPONSE (0x0D02)
+#define SERVER_LOGICAL_PORT_ERROR (0x0D12)
+
+#define CLIENT_LOGICAL_PORT_REQUEST (0x0C03)
+#define CLIENT_LOGICAL_PORT_INDICATION (0x0C13)
+#define CLIENT_LOGICAL_PORT_RESPONSE (0x0D03)
+#define CLIENT_LOGICAL_PORT_ERROR (0x0D13)
+
+#define CONNECTION_BIND_REQUEST (0x0C04)
+#define CONNECTION_BIND_INDICATION (0x0C14)
+#define CONNECTION_BIND_RESPONSE (0x0D04)
+#define CONNECTION_BIND_ERROR (0x0D14)
+
+#define SESSION_ID_REQUEST (0x0C05)
+#define SESSION_ID_INDICATION (0x0C15)
+#define SESSION_ID_RESPONSE (0x0D05)
+#define SESSION_ID_ERROR (0x0D15)
+
+#define LIVELINESS_REQUEST (0x0C06)
+#define LIVELINESS_RESPONSE (0x0D06)
+
+#define FINALIZE_SESSION_REQUEST (0x0C0F)
+#define FINALIZE_SESSION_INDICATION (0x0C1F)
+#define FINALIZE_SESSION_RESPONSE (0x0D0F)
+#define FINALIZE_SESSION_ERRROR (0x0D1F)
+
+#define LOCATOR_KIND_IPV4 (1)
+#define LOCATOR_KIND_IPV6 (2)
+
+#define RTPS_LOCATOR_ADDRESS_ATTRIBUTE_TYPE (0x3D01)
+#define RTPS_LOCATOR_PORT_ATTRIBUTE_TYPE (0x3D02)
+#define CONNECTION_TYPE_ATTRIBUTE_TYPE (0x3D03)
+#define CONNECTION_COOKIE_ATTRIBUTE_TYPE (0x3D04)
+#define PORT_OPTIONS_ATTRIBUTE_TYPE (0x3D05)
+#define TRANSPORT_PRIORITY_ATTRIBUTE_TYPE (0x3D06)
+#define SESSION_ID_ATTRIBUTE_TYPE (0x3D07)
+
+#define MAPPED_ADDRESS_ATTRIBUTE_TYPE (0x0001)
+#define XOR_MAPPED_ADDRESS_ATTRIBUTE_TYPE (0x0020)
+#define ERROR_CODE_ATTRIBUTE_TYPE (0x0009)
+#define UNKNOWN_ATTRIBUTES_ATTRIBUTE_TYPE (0x000A)
+
+#define SOFTWARE_ATTRIBUTE_TYPE (0x8022)
+#define ALTERNATE_SERVER_ATTRIBUTE_TYPE (0x8023)
+
+#define CLASS_ID_TCPV4_LAN (0x00)
+#define CLASS_ID_TCPV4_WAN (0x40)
+#define CLASS_ID_TLSV4_LAN (0x80)
+#define CLASS_ID_TLSV4_WAN (0xC0)
+
+
+#define NDDS_TRANSPORT_TCPV4_CONTROL_PROTOCOL_OK 0
+/* client requested a transport class not supported by the server */
+#define NDDS_TRANSPORT_TCPV4_CONTROL_PROTOCOL_ERROR_TRANSPORT_CLASS_MISMATCH 1
+/* required attribute is missing */
+#define NDDS_TRANSPORT_TCPV4_CONTROL_PROTOCOL_ERROR_ATTRIBUTE_MISSING 2
+/* no matching receive resource for requested port */
+#define NDDS_TRANSPORT_TCPV4_CONTROL_PROTOCOL_ERROR_NO_MATCHING_RECVRESOURCE 3
+/* no matching cookie found on server */
+#define NDDS_TRANSPORT_TCPV4_CONTROL_PROTOCOL_ERROR_NO_MATCH_COOKIE 4
+/* fatal internal processing error (caller is not responsible) */
+#define NDDS_TRANSPORT_TCPV4_CONTROL_PROTOCOL_ERROR_INTERNAL 5
+/* the operation should be retried at the first occurence */
+#define NDDS_TRANSPORT_TCPV4_CONTROL_PROTOCOL_ERROR_RETRY 6
+#define NDDS_TRANSPORT_TCP_CONTROL_ERROR_CODE_ATTRIBUTE_BAD_REQUEST_ID 400
+#define NDDS_TRANSPORT_TCP_CONTROL_ERROR_CODE_ATTRIBUTE_UNKNOWN_ATTRIBUTE_ID 420
+#define NDDS_TRANSPORT_TCP_CONTROL_ERROR_CODE_ATTRIBUTE_ALLOCATION_MISMATCH_ID 437
+#define NDDS_TRANSPORT_TCP_CONTROL_ERROR_CODE_ATTRIBUTE_UNSUPPORTED_TRANSPORT_PROTOCOL_ID 442
+#define NDDS_TRANSPORT_TCP_CONTROL_ERROR_CODE_ATTRIBUTE_CONNECTION_ALREADY_EXISTS_ID 446
+#define NDDS_TRANSPORT_TCP_CONTROL_ERROR_CODE_ATTRIBUTE_SERVER_ERROR_ID 500
+
+/* Forward declaration that is needed below if using the
+ * proto_reg_handoff_rtitcp function as a callback for when protocol
+ * preferences get changed. For now we don't have preferences but we
+ * may have them in the future.*/
+
+void proto_reg_handoff_rtitcp(void);
+void proto_register_rtitcp(void);
+
+/* Initialize the protocol and registered fields */
+static gint proto_rtitcp = -1;
+static gint hf_rtitcp_header_control_byte = -1;
+static gint hf_rtitcp_header_magic_number = -1;
+static gint hf_rtitcp_header_message_length = -1;
+static gint hf_rtitcp_control_transaction_id = -1;
+static gint hf_rtitcp_control_kind = -1;
+static gint hf_rtitcp_control_attribute_type = -1;
+static gint hf_rtitcp_control_attribute_length = -1;
+static gint hf_rtitcp_control_attribute_port = -1;
+static gint hf_rtitcp_attributes_list_length = -1;
+static gint hf_rtitcp_control_magic_cookie = -1;
+static gint hf_rtitcp_control_attribute_connection_cookie = -1;
+static gint hf_rtitcp_control_attribute_connection_type = -1;
+static gint hf_rtitcp_control_attribute_session_id = -1;
+static gint hf_rtitcp_control_attribute_error_code_value = -1;
+static gint hf_rtitcp_control_attribute_error_code_description = -1;
+static gint hf_rtitcp_locator_ipv4 = -1;
+static gint hf_rtitcp_locator_port = -1;
+static gint hf_rtitcp_locator_ipv6 = -1;
+static gint hf_rtitcp_locator_kind = -1;
+static gint hf_rtitcp_crc_magic_cookie = -1;
+static gint hf_rtitcp_control_crc_value = -1;
+
+static gint hf_rtitcp_response_in = -1;
+static gint hf_rtitcp_response_to = -1;
+static gint hf_rtitcp_response_time = -1;
+
+#define RTITCP_FLAG_NOT_REQUEST 0x0100
+
+typedef struct _rtitcp_transaction_t {
+ guint32 req_frame;
+ guint32 rep_frame;
+ nstime_t req_time;
+} rtitcp_transaction_t;
+
+typedef struct _rtitcp_conv_info_t {
+ wmem_map_t *pdus;
+} rtitcp_conv_info_t;
+
+/* Subtree pointers */
+static gint ett_rtitcp = -1;
+static gint ett_rtitcp_signalling_protocol = -1;
+static gint ett_rtitcp_message = -1;
+static gint ett_rtitcp_attributes_list = -1;
+static gint ett_rtitcp_attribute = -1;
+
+static header_field_info *hfi_rtitcp = NULL;
+static heur_dissector_list_t heur_subdissector_list;
+
+static const value_string ctrl_message_types_vals[] = {
+ { IDENTITY_BIND_REQUEST, "Identity Bind Request" },
+ { IDENTITY_BIND_INDICATION, "Identity Bind Indication" },
+ { IDENTITY_BIND_RESPONSE, "Identity Bind Response" },
+ { IDENTITY_BIND_ERROR, "Identity Bind Error" },
+ { SERVER_LOGICAL_PORT_REQUEST, "Server Logical Port Request" },
+ { SERVER_LOGICAL_PORT_RESPONSE, "Server Logical Port Response" },
+ { SERVER_LOGICAL_PORT_ERROR, "Server Logical Port Error" },
+ { CLIENT_LOGICAL_PORT_REQUEST, "Client Logical Port Request" },
+ { CLIENT_LOGICAL_PORT_RESPONSE, "Client Logical Port Response" },
+ { CLIENT_LOGICAL_PORT_ERROR, "Client Logical Port Error" },
+ { CONNECTION_BIND_REQUEST, "Connection Bind Request" },
+ { CONNECTION_BIND_RESPONSE, "Connection Bind Response" },
+ { CONNECTION_BIND_ERROR, "Connection Bind Error" },
+ { SESSION_ID_REQUEST, "Session ID Request" },
+ { SESSION_ID_INDICATION, "Session ID Indication" },
+ { SESSION_ID_RESPONSE, "Session ID Response" },
+ { SESSION_ID_ERROR, "Session ID Error" },
+ { LIVELINESS_REQUEST, "Liveliness Request" },
+ { LIVELINESS_RESPONSE, "Liveliness Response" },
+ { FINALIZE_SESSION_INDICATION, "Finalize Session Indication" },
+ { 0, NULL }
+};
+
+static const value_string attribute_types_vals[] = {
+ { RTPS_LOCATOR_ADDRESS_ATTRIBUTE_TYPE, "Locator Address" },
+ { RTPS_LOCATOR_PORT_ATTRIBUTE_TYPE, "Locator Port" },
+ { CONNECTION_TYPE_ATTRIBUTE_TYPE, "Connection Type" },
+ { CONNECTION_COOKIE_ATTRIBUTE_TYPE, "Connection Cookie" },
+ { PORT_OPTIONS_ATTRIBUTE_TYPE, "Port options" },
+ { TRANSPORT_PRIORITY_ATTRIBUTE_TYPE, "Transport priority" },
+ { SESSION_ID_ATTRIBUTE_TYPE, "Session ID" },
+ { MAPPED_ADDRESS_ATTRIBUTE_TYPE, "Mapped Address" },
+ { XOR_MAPPED_ADDRESS_ATTRIBUTE_TYPE, "XOR Mapped Address" },
+ { ERROR_CODE_ATTRIBUTE_TYPE, "Error Code" },
+ { UNKNOWN_ATTRIBUTES_ATTRIBUTE_TYPE, "Unknown attribute" },
+ { SOFTWARE_ATTRIBUTE_TYPE, "Software" },
+ { ALTERNATE_SERVER_ATTRIBUTE_TYPE, "Alternate Server" },
+ { 0, NULL }
+};
+
+static const value_string error_code_kind_vals[] = {
+ { NDDS_TRANSPORT_TCPV4_CONTROL_PROTOCOL_OK,
+ "PROTOCOL_OK" },
+ { NDDS_TRANSPORT_TCPV4_CONTROL_PROTOCOL_ERROR_TRANSPORT_CLASS_MISMATCH,
+ "PROTOCOL_ERROR_TRANSPORT_CLASS_MISMATCH" },
+ { NDDS_TRANSPORT_TCPV4_CONTROL_PROTOCOL_ERROR_ATTRIBUTE_MISSING,
+ "PROTOCOL_ERROR_ATTRIBUTE_MISSING" },
+ { NDDS_TRANSPORT_TCPV4_CONTROL_PROTOCOL_ERROR_NO_MATCHING_RECVRESOURCE,
+ "PROTOCOL_ERROR_NO_MATCHING_RECVRESOURCE" },
+ { NDDS_TRANSPORT_TCPV4_CONTROL_PROTOCOL_ERROR_NO_MATCH_COOKIE,
+ "PROTOCOL_ERROR_NO_MATCH_COOKIE" },
+ { NDDS_TRANSPORT_TCPV4_CONTROL_PROTOCOL_ERROR_INTERNAL,
+ "PROTOCOL_ERROR_INTERNAL" },
+ { NDDS_TRANSPORT_TCPV4_CONTROL_PROTOCOL_ERROR_RETRY,
+ "PROTOCOL_ERROR_RETRY" },
+ { NDDS_TRANSPORT_TCP_CONTROL_ERROR_CODE_ATTRIBUTE_BAD_REQUEST_ID,
+ "ERROR_CODE_ATTRIBUTE_BAD_REQUEST_ID" },
+ { NDDS_TRANSPORT_TCP_CONTROL_ERROR_CODE_ATTRIBUTE_UNKNOWN_ATTRIBUTE_ID,
+ "ERROR_CODE_ATTRIBUTE_UNKNOWN_ATTRIBUTE_ID" },
+ { NDDS_TRANSPORT_TCP_CONTROL_ERROR_CODE_ATTRIBUTE_ALLOCATION_MISMATCH_ID,
+ "ERROR_CODE_ATTRIBUTE_ALLOCATION_MISMATCH_ID" },
+ { NDDS_TRANSPORT_TCP_CONTROL_ERROR_CODE_ATTRIBUTE_UNSUPPORTED_TRANSPORT_PROTOCOL_ID,
+ "ERROR_CODE_ATTRIBUTE_UNSUPPORTED_TRANSPORT_PROTOCOL_ID" },
+ { NDDS_TRANSPORT_TCP_CONTROL_ERROR_CODE_ATTRIBUTE_CONNECTION_ALREADY_EXISTS_ID,
+ "ERROR_CODE_ATTRIBUTE_CONNECTION_ALREADY_EXISTS_ID" },
+ { NDDS_TRANSPORT_TCP_CONTROL_ERROR_CODE_ATTRIBUTE_SERVER_ERROR_ID,
+ "ERROR_CODE_ATTRIBUTE_SERVER_ERROR_ID" },
+ { 0, NULL }
+};
+
+static const value_string rtitcp_locator_kind_vals[] = {
+ { LOCATOR_KIND_IPV4, "IPV4" },
+ { LOCATOR_KIND_IPV6, "Unreachable peer" },
+ { 0, NULL }
+};
+
+static const value_string rtitcp_attribute_connection_type_vals[] = {
+ { CLASS_ID_TCPV4_LAN, "TCPV4_LAN" },
+ { CLASS_ID_TCPV4_WAN, "TCPV4_WAN" },
+ { CLASS_ID_TLSV4_LAN, "TLSV4_LAN" },
+ { CLASS_ID_TLSV4_WAN, "TLSV4_WAN" },
+ { 0, NULL }
+};
+
+static void rtitcp_util_add_error_attribute(proto_tree *attribute, tvbuff_t* tvb,
+ gint offset, guint size) {
+ proto_tree_add_item(attribute, hf_rtitcp_control_attribute_error_code_value, tvb, offset, 4, ENC_BIG_ENDIAN);
+ proto_tree_add_item(attribute, hf_rtitcp_control_attribute_error_code_description, tvb, offset + 4,
+ size - 4, ENC_ASCII|ENC_NA);
+}
+
+static void rtitcp_util_add_locator_t(proto_tree *tree, packet_info *pinfo _U_, tvbuff_t * tvb,
+ gint offset, gboolean little_endian,
+ proto_item * rtitcp_message, gboolean * first_attribute) {
+ gint32 kind;
+ guint16 port;
+ kind = tvb_get_guint16(tvb, offset+8, little_endian ? ENC_LITTLE_ENDIAN : ENC_BIG_ENDIAN);
+
+ if (kind == 0xFFFF) {
+ kind = LOCATOR_KIND_IPV4;
+ } else {
+ kind = LOCATOR_KIND_IPV6;
+ }
+ proto_tree_add_uint(tree, hf_rtitcp_locator_kind, tvb, offset+8, 2, kind);
+
+ if (kind == LOCATOR_KIND_IPV4) {
+ proto_tree_add_item(tree, hf_rtitcp_locator_port, tvb, offset+10, 2, ENC_BIG_ENDIAN);
+ proto_tree_add_item(tree, hf_rtitcp_locator_ipv4, tvb, offset+12, 4, ENC_BIG_ENDIAN);
+
+ port = tvb_get_guint16(tvb, offset+10, little_endian ? ENC_LITTLE_ENDIAN : ENC_BIG_ENDIAN);
+ proto_item_append_text(rtitcp_message, "%s%s:%u",
+ *first_attribute ? "" : ", ", tvb_ip_to_str(tvb, offset + 12), port);
+ col_append_fstr(pinfo->cinfo, COL_INFO, "%s%s:%u",
+ *first_attribute ? "" : ", ", tvb_ip_to_str(tvb, offset + 12), port);
+ } else {
+ proto_tree_add_item(tree, hf_rtitcp_locator_ipv6, tvb, offset, 16, ENC_NA);
+ proto_item_append_text(rtitcp_message, "%s%s",
+ *first_attribute ? "" : ", ", tvb_ip6_to_str(tvb, offset));
+ col_append_fstr(pinfo->cinfo, COL_INFO, "%s%s",
+ *first_attribute ? "" : ", ", tvb_ip6_to_str(tvb, offset));
+ }
+}
+
+static guint dissect_attribute(tvbuff_t *tvb, packet_info *pinfo,
+ proto_tree *attributes_list, guint offset, guint attributes_list_offset,
+ proto_item * rtitcp_message, gboolean * first_attribute) {
+
+ guint16 attribute_length, attribute_type;
+ guint padding;
+ proto_item *attribute;
+
+ attribute_type = tvb_get_guint16(tvb, attributes_list_offset+offset, ENC_BIG_ENDIAN);
+ attribute_length = tvb_get_guint16(tvb, attributes_list_offset+offset+2, ENC_BIG_ENDIAN);
+
+ attribute = proto_tree_add_subtree_format(attributes_list, tvb,
+ attributes_list_offset+offset, attribute_length+4,
+ ett_rtitcp_attribute, NULL, "Unknown Attribute");
+
+ proto_tree_add_item(attribute, hf_rtitcp_control_attribute_type, tvb,
+ attributes_list_offset+offset, 2, ENC_BIG_ENDIAN);
+ proto_tree_add_item(attribute, hf_rtitcp_control_attribute_length, tvb,
+ attributes_list_offset+offset+2, 2, ENC_BIG_ENDIAN);
+ proto_item_set_text(attribute,"%s", val_to_str(attribute_type, attribute_types_vals, "Unknown attribute"));
+
+ switch (attribute_type) {
+ case RTPS_LOCATOR_PORT_ATTRIBUTE_TYPE: {
+ guint32 port;
+ port = tvb_get_guint32(tvb, attributes_list_offset+offset+4, ENC_BIG_ENDIAN);
+
+ proto_item_append_text(rtitcp_message, "%s%u",
+ *first_attribute ? "" : ", ", port);
+ col_append_fstr(pinfo->cinfo, COL_INFO, "%s%u",
+ *first_attribute ? "" : ", ", port);
+ (*first_attribute) = FALSE;
+ proto_item_append_text(attribute, " (Port = %u)", port);
+ proto_tree_add_item(attribute, hf_rtitcp_control_attribute_port, tvb,
+ attributes_list_offset+offset+4, attribute_length, ENC_BIG_ENDIAN);
+ break;
+ }
+ case RTPS_LOCATOR_ADDRESS_ATTRIBUTE_TYPE: {
+ rtitcp_util_add_locator_t(attribute, pinfo, tvb, attributes_list_offset+offset+4,
+ ENC_BIG_ENDIAN, rtitcp_message, first_attribute);
+ (*first_attribute) = FALSE;
+ break;
+ }
+
+ case CONNECTION_COOKIE_ATTRIBUTE_TYPE: {
+ proto_tree_add_item(attribute, hf_rtitcp_control_attribute_connection_cookie,
+ tvb, attributes_list_offset+offset+4, attribute_length, ENC_NA);
+ proto_item_append_text(rtitcp_message, "%s%s",
+ (*first_attribute) ? "" : ", ",
+ tvb_bytes_to_str(wmem_packet_scope(), tvb, attributes_list_offset+offset+4, 16));
+ col_append_fstr(pinfo->cinfo, COL_INFO, "%s%s",
+ (*first_attribute) ? "" : ", ",
+ tvb_bytes_to_str(wmem_packet_scope(), tvb, attributes_list_offset+offset+4, 16));
+ (*first_attribute) = FALSE;
+ break;
+ }
+ case CONNECTION_TYPE_ATTRIBUTE_TYPE: {
+ guint8 attribute_connection_type = tvb_get_guint8(tvb, attributes_list_offset+offset+4);
+ proto_tree_add_item(attribute, hf_rtitcp_control_attribute_connection_type, tvb,
+ attributes_list_offset+offset+4, attribute_length, ENC_BIG_ENDIAN);
+ proto_item_append_text(rtitcp_message, "%s%s",
+ (*first_attribute) ? "" : ", ",
+ val_to_str(attribute_connection_type, rtitcp_attribute_connection_type_vals, "Unknown attribute"));
+ col_append_fstr(pinfo->cinfo, COL_INFO, "%s%s",
+ (*first_attribute) ? "" : ", ",
+ val_to_str(attribute_connection_type, rtitcp_attribute_connection_type_vals, "Unknown attribute"));
+ (*first_attribute) = FALSE;
+ break;
+ }
+ case SESSION_ID_ATTRIBUTE_TYPE: {
+ proto_tree_add_item(attribute, hf_rtitcp_control_attribute_session_id, tvb,
+ attributes_list_offset+offset+4, attribute_length, ENC_NA);
+ break;
+ }
+ case ERROR_CODE_ATTRIBUTE_TYPE: {
+ rtitcp_util_add_error_attribute(attribute, tvb, attributes_list_offset+offset+4, attribute_length);
+ break;
+ }
+ default:
+ break;
+ }
+
+ padding = (4 - attribute_length%4)%4;
+ return (attribute_length+padding+4);
+}
+static proto_tree* print_header(proto_tree *tree, proto_tree *rtitcp_message, tvbuff_t *tvb, guint offset,
+ guint16 msg_length, gboolean printCRC, gboolean is_data) {
+ proto_item *ti;
+
+ if (is_data) {
+ rtitcp_message = proto_tree_add_subtree_format(tree, tvb, offset, msg_length,
+ ett_rtitcp_message, NULL, "RTI TCP Data Message");
+ } else {
+ rtitcp_message = proto_tree_add_subtree_format(tree, tvb, offset, msg_length,
+ ett_rtitcp_message, NULL, "RTI TCP Control Message");
+ }
+ if (is_data) {
+ guint32 msg_length32;
+ proto_tree_add_item(rtitcp_message, hf_rtitcp_header_control_byte, tvb, offset, 1, ENC_BIG_ENDIAN);
+ ti = proto_tree_add_item(rtitcp_message, hf_rtitcp_header_message_length,
+ tvb, offset+1, 3, ENC_BIG_ENDIAN);
+ msg_length32 = tvb_get_guint32(tvb, offset, ENC_BIG_ENDIAN);
+ msg_length32 = msg_length32 % NUMBER_2E30;
+ proto_item_set_text(ti,"RTI TCP Message Length: %d", msg_length32);
+ } else {
+ proto_tree_add_item(rtitcp_message, hf_rtitcp_header_control_byte, tvb, offset, 2, ENC_BIG_ENDIAN);
+ proto_tree_add_item(rtitcp_message, hf_rtitcp_header_message_length, tvb, offset+2, 2, ENC_BIG_ENDIAN);
+ }
+ proto_tree_add_item(rtitcp_message, hf_rtitcp_header_magic_number, tvb, offset+4, 4, ENC_BIG_ENDIAN);
+ if (printCRC) {
+ proto_tree_add_item(rtitcp_message, hf_rtitcp_crc_magic_cookie, tvb, offset+8, 4, ENC_BIG_ENDIAN);
+ proto_tree_add_item(rtitcp_message, hf_rtitcp_control_crc_value, tvb, offset+12, 4, ENC_BIG_ENDIAN);
+ }
+
+ return rtitcp_message;
+}
+static guint16 dissect_control_message(proto_tree *rtitcp_tree, tvbuff_t *tvb, packet_info *pinfo,
+ guint offset) {
+
+ /* 0...2...........7...............15.............23...............31
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Not Used | msg_length |
+ * +---------------+---------------+---------------+---------------+
+ * | RTITCP_MAGIC_NUMBER |
+ * +---------------+---------------+---------------+---------------+
+ * | control_message_kind | attributes_list_length |
+ * +---------------+---------------+---------------+---------------+
+ * | RTITCP_CONTROL_MAGIC_COOKIE |
+ * +---------------+---------------+---------------+---------------+
+ * | |
+ * |- -|
+ * | TRANSACTION_ID |
+ * |- -|
+ * | |
+ * +---------------+---------------+---------------+---------------+ ---------------------------------
+ * | attribute_type | attribute_length .. Repeat |
+ * +---------------+---------------+---------------+---------------+ until |
+ * | ATTRIBUTE (length) | attributes_list_length expires |
+ * +---------------+---------------+---------------+---------------+ --------------------------------*/
+
+ proto_tree *attributes_list, *rtitcp_message = NULL;
+ guint16 msg_length, control_message_kind, attributes_list_length, header_length;
+ guint attributes_list_offset, attribute_offset, offset_header = offset;
+ guint attributes_count;
+ gboolean is_data = FALSE, printCRC = FALSE, first_attribute;
+ gchar * transaction_id_str;
+ guint64 seq_num;
+ conversation_t *conversation;
+ rtitcp_conv_info_t *rtitcp_info;
+ rtitcp_transaction_t *rtitcp_trans;
+
+ /* The header length is 8 if it doesn't contain optional fields */
+ header_length = 8;
+
+ msg_length = tvb_get_guint16(tvb, offset+2, ENC_BIG_ENDIAN);
+ offset += 8;
+
+ /* Check if CRC is present */
+ if (tvb_get_ntohl(tvb, offset) == RTITCP_CRC_MAGIC_NUMBER) {
+ printCRC = TRUE;
+ header_length += 8;
+ offset += 8; /* Because of 0xCRC32 + actual CRC (4 bytes) */
+ }
+
+ /* Time to print the header */
+ rtitcp_message = print_header(rtitcp_tree, rtitcp_message, tvb, offset_header, msg_length + header_length, printCRC, is_data);
+
+ /* Check the control message kind */
+ control_message_kind = tvb_get_guint16(tvb, offset, ENC_BIG_ENDIAN);
+ col_append_sep_str(pinfo->cinfo, COL_INFO, ", ",
+ val_to_str(control_message_kind,ctrl_message_types_vals, "Unknown control message"));
+ proto_tree_add_uint(rtitcp_message, hf_rtitcp_control_kind, tvb, offset, 2, control_message_kind);
+ proto_item_set_text(rtitcp_message,"RTI TCP Control Message , Kind: %s",
+ val_to_str(control_message_kind,ctrl_message_types_vals, "Unknown control message"));
+ offset += 2;
+
+ /* Take the length in bytes of the attributes list */
+ attributes_list_length = tvb_get_guint16(tvb, offset, ENC_BIG_ENDIAN);
+ proto_tree_add_item(rtitcp_message, hf_rtitcp_attributes_list_length, tvb, offset, 2, ENC_BIG_ENDIAN);
+ offset += 2;
+
+ /* We expect now the RTI TCP Control Magic Cookie */
+ if (tvb_get_ntohl(tvb, offset) != RTITCP_CONTROL_MAGIC_COOKIE) {
+ return msg_length + header_length;
+ }
+ proto_tree_add_item(rtitcp_message, hf_rtitcp_control_magic_cookie, tvb, offset, 4, ENC_BIG_ENDIAN);
+ offset += 4;
+
+ /* Now we dissect the transaction id */
+ proto_tree_add_item(rtitcp_message, hf_rtitcp_control_transaction_id, tvb, offset, 12, ENC_NA);
+ transaction_id_str = tvb_bytes_to_str(wmem_packet_scope(), tvb, offset, 12);
+
+ /* Get the transaction identifier. Not the whole transaction but the middle part, which
+ * shouldn't coincide */
+ seq_num = tvb_get_ntoh64(tvb, offset);
+
+ /*
+ * We need to track some state for this protocol on a per conversation
+ * basis so we can do neat things like request/response tracking
+ */
+ conversation = find_or_create_conversation(pinfo);
+
+ rtitcp_info = (rtitcp_conv_info_t *)conversation_get_proto_data(conversation, proto_rtitcp);
+ if (!rtitcp_info) {
+ /*
+ * No. Attach that information to the conversation, and add
+ * it to the list of information structures.
+ */
+ rtitcp_info = wmem_new(wmem_file_scope(), rtitcp_conv_info_t);
+ rtitcp_info->pdus=wmem_map_new(wmem_file_scope(), g_direct_hash, g_direct_equal);
+
+ conversation_add_proto_data(conversation, proto_rtitcp, rtitcp_info);
+ }
+ if (!pinfo->fd->flags.visited) {
+ if (!(control_message_kind & RTITCP_FLAG_NOT_REQUEST)) {
+ /* This is a request */
+ rtitcp_trans=wmem_new(wmem_file_scope(), rtitcp_transaction_t);
+ rtitcp_trans->req_frame = pinfo->fd->num;
+ rtitcp_trans->rep_frame = 0;
+ rtitcp_trans->req_time = pinfo->fd->abs_ts;
+ wmem_map_insert(rtitcp_info->pdus, GUINT_TO_POINTER(seq_num), (void *)rtitcp_trans);
+ } else {
+ rtitcp_trans=(rtitcp_transaction_t *)wmem_map_lookup(rtitcp_info->pdus, GUINT_TO_POINTER(seq_num));
+ if (rtitcp_trans) {
+ rtitcp_trans->rep_frame = pinfo->fd->num;
+ }
+ }
+ } else {
+ rtitcp_trans=(rtitcp_transaction_t *)wmem_map_lookup(rtitcp_info->pdus, GUINT_TO_POINTER(seq_num));
+ }
+ if (!rtitcp_trans) {
+ /* create a "fake" rtitcp_trans structure */
+ rtitcp_trans=wmem_new(wmem_packet_scope(), rtitcp_transaction_t);
+ rtitcp_trans->req_frame = 0;
+ rtitcp_trans->rep_frame = 0;
+ rtitcp_trans->req_time = pinfo->fd->abs_ts;
+ }
+
+ /* print state tracking in the tree */
+ if (!(control_message_kind & RTITCP_FLAG_NOT_REQUEST)) {
+ /* This is a request */
+ if (rtitcp_trans->rep_frame) {
+ proto_item *it;
+ it = proto_tree_add_uint(rtitcp_message, hf_rtitcp_response_in,
+ tvb, 0, 0, rtitcp_trans->rep_frame);
+ PROTO_ITEM_SET_GENERATED(it);
+ }
+ } else {
+ /* This is a reply */
+ if (rtitcp_trans->req_frame) {
+ proto_item *it;
+ nstime_t ns;
+ it = proto_tree_add_uint(rtitcp_message, hf_rtitcp_response_to,
+ tvb, 0, 0, rtitcp_trans->req_frame);
+ PROTO_ITEM_SET_GENERATED(it);
+
+ nstime_delta(&ns, &pinfo->fd->abs_ts, &rtitcp_trans->req_time);
+ it = proto_tree_add_time(rtitcp_message, hf_rtitcp_response_time, tvb, 0, 0, &ns);
+ PROTO_ITEM_SET_GENERATED(it);
+ }
+ }
+
+ /* End of feature */
+ offset += 12;
+
+ /* Finally, dissect the list of attributes */
+ attributes_list_offset = 0;
+ attributes_list = proto_tree_add_subtree_format(rtitcp_message, tvb,
+ attributes_list_offset+offset, attributes_list_length,
+ ett_rtitcp_attributes_list, NULL, "Attributes List");
+
+ attributes_count = 0;
+ first_attribute = TRUE;
+ if (attributes_list_offset < attributes_list_length) {
+ proto_item_append_text(rtitcp_message," (");
+ col_append_str(pinfo->cinfo, COL_INFO, " (");
+ }
+ while (attributes_list_offset < attributes_list_length) {
+ ++attributes_count;
+ attribute_offset = dissect_attribute(tvb, pinfo, attributes_list,
+ offset, attributes_list_offset, rtitcp_message, &first_attribute);
+ attributes_list_offset += attribute_offset;
+ }
+ if (!first_attribute) {
+ proto_item_append_text(rtitcp_message,")");
+ col_append_str(pinfo->cinfo, COL_INFO, ")");
+ }
+ /* Now that we have the number of attributes, update the text to show it */
+ proto_item_set_text(attributes_list, "Attributes list [%d attribute%s",
+ attributes_count, attributes_count > 1 ? "s]" : "]");
+
+ proto_item_append_text(rtitcp_message,", Transaction ID: %s, Len: %d",
+ transaction_id_str, msg_length);
+
+ return msg_length + header_length;
+}
+
+/* This function dissects all the control messages found */
+static guint dissect_rtitcp_control_protocol(proto_tree *rtitcp_tree, tvbuff_t *tvb, packet_info *pinfo) {
+ guint messages_count, offset;
+ guint16 msg_length;
+ guint32 tvb_len;
+
+ offset = 0;
+ tvb_len = tvb_reported_length(tvb);
+
+ messages_count = 0;
+
+ while (offset < tvb_len) {
+ msg_length = dissect_control_message(rtitcp_tree, tvb, pinfo, offset);
+ offset += msg_length;
+ ++messages_count;
+ }
+
+ return offset;
+}
+
+static gint dissect_rtitcp_common(tvbuff_t *tvb, packet_info *pinfo,
+ proto_tree *tree, void *data _U_) {
+
+ /* FORMAT OF THE CONTROL MESSAGE
+
+ 0...2...........7...............15.............23...............31
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | control bytes | RTI TCP message length |
+ * +---------------+---------------+---------------+---------------+
+ * | RTITCP_MAGIC_NUMBER |
+ * +---------------+---------------+---------------+---------------+
+ * | control_message_kind | attributes_list_length |
+ * +---------------+---------------+---------------+---------------+
+ * | RTITCP_CONTROL_MAGIC_COOKIE |
+ * +---------------+---------------+---------------+---------------+
+ * | |
+ * |- -|
+ * | TRANSACTION_ID |
+ * |- -|
+ * | |
+ * +---------------+---------------+---------------+---------------+ ---------------------------------
+ * | attribute_type | attribute_length .. Repeat |
+ * +---------------+---------------+---------------+---------------+ until |
+ * | ATTRIBUTE (length) | attributes_list_length expires |
+ * +---------------+---------------+---------------+---------------+ --------------------------------*/
+
+ proto_item *ti;
+ proto_tree *rtitcp_tree, *rtitcp_message = NULL;
+ guint offset, offset_header;
+ guint16 rtitcp_msg_length, header_length;
+ guint32 tvb_len, rtitcp_rtps_msg_length;
+ gboolean printCRC = FALSE, is_data = FALSE;
+ tvbuff_t *next_tvb;
+ heur_dtbl_entry_t *hdtbl_entry;
+
+ offset = 0;
+ tvb_len = tvb_reported_length(tvb);
+
+ /* From this point, we can consider that this is a RTI TCP message */
+ col_set_str(pinfo->cinfo, COL_PROTOCOL, "RTI-TCP");
+
+ rtitcp_msg_length = tvb_get_guint16(tvb, offset+2, ENC_BIG_ENDIAN);
+
+ ti = proto_tree_add_item(tree, proto_rtitcp, tvb, offset,
+ rtitcp_msg_length + 8, ENC_NA);
+ rtitcp_tree = proto_item_add_subtree(ti, ett_rtitcp);
+
+ offset_header = 0; /* Remember the offset that delimits the header */
+ header_length = 8; /* the header is 8 bytes length + 8 optional (CRC) */
+ offset += 2; /* First two bytes are CTRL bytes */
+ offset += 2; /* rtitcp_msg_length */
+ offset += 4; /* RTITCP_MAGIC_NUMBER has already been checked */
+
+ /* if bytes 8 to 12 are RTITCP_CRC_MAGIC_NUMBER, we got a CRC */
+ if (tvb_get_ntohl(tvb, offset) == RTITCP_CRC_MAGIC_NUMBER) {
+ printCRC = TRUE; /* To specify later that CRC must be printed */
+ header_length += 8; /* header increases in 8 bytes */
+ offset += 8; /* Because of 0xCRC32 + actual CRC (4 bytes) */
+ }
+
+ /* At this point, offset is 8 or 16 bytes and we have now data.
+ This data can be RTPS or RTI TCP Signaling messages */
+ if (tvb_get_ntohl(tvb, offset) == RTPS_MAGIC_NUMBER) {
+
+ /* IMPORTANT NOTE: We assume always one RTPS message per RTITCP message */
+ /* If the TCP layer has provided us with garbage at the end of the buffer,
+ process only the length specified by rtitcp_msg_length */
+ if (tvb_len > (guint32)(rtitcp_msg_length + header_length)) {
+ tvb_set_reported_length(tvb, (rtitcp_msg_length + header_length));
+ }
+
+ /* When we encapsulate RTPS, packet length is given by the 30 less
+ significant bits of the first four bytes */
+ rtitcp_rtps_msg_length = tvb_get_guint32(tvb, 0, ENC_BIG_ENDIAN);
+ rtitcp_rtps_msg_length = rtitcp_rtps_msg_length % NUMBER_2E30;
+ /* Add RTI TCP Data Message subtree and print header */
+ is_data = TRUE;
+ rtitcp_message = print_header(rtitcp_tree, rtitcp_message, tvb, offset_header,
+ rtitcp_rtps_msg_length + header_length, printCRC, is_data);
+
+ proto_item_set_text(rtitcp_message,"RTI TCP Data Message, Len: %d",
+ rtitcp_rtps_msg_length);
+
+ /* Take the payload and call the registered sub-dissectors. So far, RTPS */
+ next_tvb = tvb_new_subset_remaining(tvb, offset);
+ dissector_try_heuristic(heur_subdissector_list, next_tvb, pinfo, tree, &hdtbl_entry, NULL);
+ return tvb_captured_length(tvb);
+
+ } else {
+ return dissect_rtitcp_control_protocol(rtitcp_tree, tvb, pinfo);
+ }
+}
+
+static guint get_rtitcp_pdu_len(packet_info *pinfo _U_, tvbuff_t *tvb,
+ gint offset, void * data _U_) {
+ guint16 plen;
+
+ /*
+ * Get the length of the RTITCP packet.
+ */
+ plen = tvb_get_guint16(tvb, offset+2, ENC_BIG_ENDIAN);
+ /*
+ * That length doesn't include the header field itself; add that in.
+ */
+
+ /* We don't expect plen to be greater than 0xfff8 since adding the header
+ * exceeds the size */
+ if (plen >= 0xfff8)
+ return 1;
+
+ return plen + 8;
+}
+static gint dissect_rtitcp(tvbuff_t *tvb, packet_info *pinfo,
+ proto_tree *tree, void *data _U_) {
+
+ gboolean desegmentation = TRUE;
+
+ /* Check if the RTITCP_MAGIC_NUMBER is here */
+ if (tvb_get_ntohl(tvb, 4) != RTITCP_MAGIC_NUMBER)
+ return 0;
+
+ col_clear(pinfo->cinfo, COL_INFO);
+
+ tcp_dissect_pdus(tvb, pinfo, tree, desegmentation, RTITCP_MIN_LENGTH,
+ get_rtitcp_pdu_len, dissect_rtitcp_common, data);
+
+ return tvb_captured_length(tvb);
+
+}
+
+
+/* Register the protocol with Wireshark.
+ *
+ * This format is required because a script is used to build the C function that
+ * calls all the protocol registration.
+ */
+void
+proto_register_rtitcp(void)
+{
+ /* module_t *rtitcp_module; */
+ /* expert_module_t* expert_rtitcp; */
+
+ static hf_register_info hf[] = {
+
+ { &hf_rtitcp_header_control_byte, {
+ "Control Byte", "rtitcp.header.control_byte",
+ FT_UINT8, BASE_HEX, NULL, 0,
+ 0, HFILL }
+ },
+
+ { &hf_rtitcp_header_message_length, {
+ "Message Length", "rtitcp.header.message_length",
+ FT_UINT16, BASE_DEC, NULL, 0,
+ 0, HFILL }
+ },
+
+ { &hf_rtitcp_header_magic_number, {
+ "Magic Cookie", "rtitcp.header.magic_cookie",
+ FT_UINT32, BASE_HEX, NULL, 0,
+ 0, HFILL }
+ },
+
+ { &hf_rtitcp_crc_magic_cookie, {
+ "CRC Magic Cookie", "rtitcp.header.crc_magic_cookie",
+ FT_UINT32, BASE_HEX, NULL, 0,
+ 0, HFILL }
+ },
+
+ { &hf_rtitcp_control_kind,
+ { "Kind", "rtitcp.control.kind",
+ FT_UINT16, BASE_HEX, VALS(ctrl_message_types_vals), 0,
+ NULL, HFILL }
+ },
+
+ { &hf_rtitcp_control_magic_cookie, {
+ "Control Magic Cookie", "rtitcp.control.magic_cookie",
+ FT_UINT32, BASE_HEX, NULL, 0,
+ 0, HFILL }
+ },
+
+ { &hf_rtitcp_control_transaction_id, {
+ "Transaction ID", "rtitcp.control.transaction_id",
+ FT_BYTES, BASE_NONE, NULL, 0,
+ 0, HFILL }
+ },
+
+ { &hf_rtitcp_control_attribute_session_id, {
+ "Session ID", "rtitcp.control.attribute.session_id",
+ FT_BYTES, BASE_NONE, NULL, 0,
+ 0, HFILL }
+ },
+
+ { &hf_rtitcp_control_attribute_type,
+ { "Attribute Type", "rtitcp.control.attribute_type",
+ FT_UINT16, BASE_HEX, VALS(attribute_types_vals), 0,
+ NULL, HFILL }
+ },
+
+ { &hf_rtitcp_control_attribute_error_code_value,
+ { "Kind", "rtitcp.control.attribute.error_code",
+ FT_UINT32, BASE_HEX, VALS(error_code_kind_vals), 0,
+ NULL, HFILL }
+ },
+
+ { &hf_rtitcp_control_attribute_error_code_description, {
+ "Description", "rtitcp.control.attribute.error_code.description",
+ FT_STRING, BASE_NONE, NULL, 0,
+ 0, HFILL }
+ },
+
+ { &hf_rtitcp_control_attribute_connection_cookie, {
+ "Connection Cookie", "rtitcp.control.attribute.connection_cookie",
+ FT_BYTES, BASE_NONE, NULL, 0,
+ 0, HFILL }
+ },
+
+ { &hf_rtitcp_control_attribute_connection_type, {
+ "Class ID", "rtitcp.control_attribute.connection_type",
+ FT_UINT8, BASE_HEX, VALS(rtitcp_attribute_connection_type_vals), 0,
+ 0, HFILL }
+ },
+
+ { &hf_rtitcp_attributes_list_length, {
+ "Attributes list length", "rtitcp.attributes_list_length",
+ FT_UINT16, BASE_DEC, NULL, 0,
+ 0,
+ HFILL }
+ },
+
+ { &hf_rtitcp_control_attribute_length, {
+ "Attribute Length", "rtitcp.control.attribute.length",
+ FT_UINT16, BASE_DEC, NULL, 0,
+ 0, HFILL }
+ },
+
+ { &hf_rtitcp_control_attribute_port, {
+ "Port", "rtitcp.control.attribute_port",
+ FT_UINT32, BASE_DEC, NULL, 0,
+ 0, HFILL }
+ },
+
+ { &hf_rtitcp_locator_kind,
+ { "Kind", "rtitcp.locator.kind",
+ FT_UINT16, BASE_DEC, VALS(rtitcp_locator_kind_vals), 0,
+ NULL, HFILL }
+ },
+
+ { &hf_rtitcp_locator_ipv4,
+ { "Address", "rtitcp.locator.ipv4",
+ FT_IPv4, BASE_NONE, NULL, 0,
+ NULL, HFILL }
+ },
+
+ { &hf_rtitcp_locator_port,
+ { "Port", "rtitcp.locator.port",
+ FT_UINT16, BASE_DEC, NULL, 0,
+ NULL, HFILL }
+ },
+
+ { &hf_rtitcp_locator_ipv6,
+ { "Address", "rtitcp.locator.ipv6",
+ FT_IPv6, BASE_NONE, NULL, 0,
+ NULL, HFILL }
+ },
+
+ { &hf_rtitcp_control_crc_value, {
+ "CRC", "rtitcp.control.crc",
+ FT_UINT32, BASE_HEX, NULL, 0,
+ 0, HFILL }
+ },
+
+ { &hf_rtitcp_response_in, {
+ "Response In", "rtitcp.response_in",
+ FT_FRAMENUM, BASE_NONE, NULL, 0x0,
+ "The response to this RTITCP request is in this frame", HFILL }
+ },
+
+ { &hf_rtitcp_response_to, {
+ "Request In", "rtitcp.response_to",
+ FT_FRAMENUM, BASE_NONE, NULL, 0x0,
+ "This is a response to the RTITCP request in this frame", HFILL }
+ },
+
+ { &hf_rtitcp_response_time, {
+ "Response Time", "rtitcp.response_time",
+ FT_RELATIVE_TIME, BASE_NONE, NULL, 0x0,
+ "The time between the Request and the Reply", HFILL }
+ },
+
+ };
+
+ static gint *ett[] = {
+ &ett_rtitcp,
+ &ett_rtitcp_signalling_protocol,
+ &ett_rtitcp_message,
+ &ett_rtitcp_attributes_list,
+ &ett_rtitcp_attribute
+ };
+
+ /* Setup protocol expert items */
+ /* static ei_register_info ei[] = {}; */
+
+ /* Register the protocol name and description */
+ proto_rtitcp = proto_register_protocol("RTI TCP Transport Protocol",
+ "RTITCP", "rtitcp");
+
+ hfi_rtitcp = proto_registrar_get_nth(proto_rtitcp);
+ /* Required function calls to register the header fields and subtrees */
+ proto_register_field_array(proto_rtitcp, hf, array_length(hf));
+ proto_register_subtree_array(ett, array_length(ett));
+
+ /* Required function calls to register expert items */
+ /* expert_rtitcp = expert_register_protocol(proto_rtitcp);
+ expert_register_field_array(expert_rtitcp, ei, array_length(ei)); */
+
+ new_register_dissector("rtitcp", dissect_rtitcp, proto_rtitcp);
+ heur_subdissector_list = register_heur_dissector_list("rtitcp");
+
+}
+
+/* Simpler form of proto_reg_handoff_rtitcp which can be used if there are
+ * no prefs-dependent registration function calls. */
+void
+proto_reg_handoff_rtitcp(void)
+{
+ heur_dissector_add("tcp", dissect_rtitcp, "RTI TCP Layer" , "rtitcp", proto_rtitcp, HEURISTIC_ENABLE);
+}
+
+/*
+ * Editor modelines - https://www.wireshark.org/tools/modelines.html
+ *
+ * Local variables:
+ * c-basic-offset: 4
+ * tab-width: 4
+ * indent-tabs-mode: nil
+ * End:
+ *
+ * vi: set shiftwidth=4 tabstop=4 expandtab:
+ * :indentSize=4:tabSize=4:noTabs=true:
+ */
git.samba.org / metze / wireshark / wip.git / commitdiff