2012-03-20 12:32:20 +00:00
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/* packet-ppcap.c
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* Copyright 2012, Ericsson AB
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*
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* $Id$
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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2012-06-28 23:18:38 +00:00
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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2012-03-20 12:32:20 +00:00
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*
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2012-07-25 14:39:32 +00:00
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*/
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2012-03-20 12:32:20 +00:00
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#include "config.h"
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#include <glib.h>
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#include <epan/packet.h>
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2013-09-15 18:03:32 +00:00
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#include <epan/wmem/wmem.h>
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2012-03-20 12:32:20 +00:00
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#include "packet-mtp3.h"
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#define INVALID_SSN 0xff
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2013-12-12 19:52:14 +00:00
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void proto_register_ppcap(void);
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2012-03-20 12:32:20 +00:00
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static guint8 ssn;
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2012-07-25 14:39:32 +00:00
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static dissector_handle_t ppcap_handle;
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2012-03-20 12:32:20 +00:00
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static dissector_handle_t mtp3_handle; /* MTP3 handle */
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static dissector_handle_t tcap_handle; /* TCAP handle */
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2012-07-25 14:39:32 +00:00
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static dissector_handle_t bssap_handle; /* BSSAP handle */
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2012-03-20 12:32:20 +00:00
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static dissector_handle_t ranap_handle; /* RANAP handle */
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static dissector_handle_t h248_handle; /* H248 handle */
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static dissector_handle_t sip_handle; /* SIP handle */
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2012-07-25 14:39:32 +00:00
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static dissector_handle_t sccp_handle; /* SCCP handle */
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static dissector_handle_t data_handle; /* DATA handle */
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2012-03-20 12:32:20 +00:00
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static dissector_table_t sccp_ssn_dissector_table;
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2012-07-25 14:39:32 +00:00
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static mtp3_addr_pc_t* mtp3_addr_opc;
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static mtp3_addr_pc_t* mtp3_addr_dpc;
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2012-03-20 12:32:20 +00:00
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2012-07-25 14:39:32 +00:00
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static gint ett_ppcap = -1;
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static gint ett_ppcap1 = -1;
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static gint ett_ppcap_new = -1;
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2012-03-20 12:32:20 +00:00
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static const value_string payload_tag_values[] = {
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2012-07-25 14:39:32 +00:00
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{ 1, "Payload Type"},
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{ 2, "Payload Data"},
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{ 3, "Source Address"},
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{ 4, "Destination Address"},
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{256, "Info String"},
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{0, NULL},
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2012-03-20 12:32:20 +00:00
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};
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static const value_string address_type_values[] = {
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2012-07-25 14:39:32 +00:00
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{1, "SSN+SPC"},
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{2, "SPC"},
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{3, "IP Address"},
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{4, "Node Id"},
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{0, NULL},
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2012-03-20 12:32:20 +00:00
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};
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/* Initialise the header fields */
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static int proto_ppcap= -1;
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static int hf_ppcap_length = -1;
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static int hf_ppcap_payload_type = -1;
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static int hf_ppcap_ssn = -1;
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static int hf_ppcap_spc = -1;
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static int hf_ppcap_ssn1 = -1;
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static int hf_ppcap_spc1 = -1;
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static int hf_ppcap_opc = -1;
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static int hf_ppcap_dpc = -1;
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static int hf_ppcap_source_nodeid = -1;
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static int hf_ppcap_destination_nodeid = -1;
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/*static int hf_ppcap_source_address_type = -1; */
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/*static int hf_ppcap_destination_address_type = -1; */
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static int hf_ppcap_address_type = -1;
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static int hf_ppcap_source_ip_address1 = -1;
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static int hf_ppcap_source_ip_address2 = -1;
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static int hf_ppcap_destination_ip_address1 = -1;
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static int hf_ppcap_destination_ip_address2 = -1;
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static int hf_ppcap_reserved = -1;
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static int hf_ppcap_destreserved = -1;
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static int hf_ppcap_info = -1;
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static int hf_ppcap_payload_data = -1;
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/* Initiliaze the subtree pointers*/
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void proto_reg_handoff_ppcap(void);
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/* PPCAP payload types */
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typedef enum {
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PPCAP_UNKNOWN = 0,
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PPCAP_MTP3 = 1,
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PPCAP_TCAP = 2,
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PPCAP_BSSAP = 3,
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PPCAP_RANAP = 4,
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PPCAP_H248 = 5,
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PPCAP_SIP = 6,
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PPCAP_SCCP = 7
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} payload_type_type;
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2012-07-25 14:39:32 +00:00
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static int dissect_ppcap_payload_type(tvbuff_t *, proto_tree *, int, guint16, payload_type_type *);
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static int dissect_ppcap_source_address(tvbuff_t *, packet_info *, proto_tree *, int, guint16);
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static int dissect_ppcap_destination_address(tvbuff_t *, packet_info *, proto_tree *, int, guint16);
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static int dissect_ppcap_info_string(tvbuff_t *, proto_tree *, int, guint16);
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static int dissect_ppcap_payload_data(tvbuff_t *, packet_info *, proto_tree *, int, guint16, proto_tree *, payload_type_type);
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2012-03-20 12:32:20 +00:00
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/*Dissecting the function PPCAP */
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static void
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dissect_ppcap(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
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{
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proto_item *ti, *ti1;
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proto_tree *ppcap_tree, *ppcap_tree1;
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2012-07-25 14:39:32 +00:00
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guint16 msg_type, msg_len;
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int offset = 0;
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2012-03-20 12:32:20 +00:00
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payload_type_type payload_type = PPCAP_UNKNOWN;
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "PPCAP");
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col_clear(pinfo->cinfo, COL_INFO);
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ti = proto_tree_add_item(tree, proto_ppcap, tvb, 0, -1, ENC_NA);
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ppcap_tree = proto_item_add_subtree(ti, ett_ppcap);
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2012-07-25 14:39:32 +00:00
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while (tvb_length_remaining(tvb, offset) > 0)
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2012-03-20 12:32:20 +00:00
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{
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2012-07-25 14:39:32 +00:00
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msg_type = tvb_get_ntohs(tvb, offset);
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ti1 = proto_tree_add_text(ppcap_tree, tvb, offset, 2, "%s",
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val_to_str(msg_type, payload_tag_values, "Unknown PPCAP message type (%u)"));
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2012-03-20 12:32:20 +00:00
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ppcap_tree1 = proto_item_add_subtree(ti1, ett_ppcap1);
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2012-07-25 14:39:32 +00:00
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offset = offset + 2;
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msg_len = tvb_get_ntohs(tvb, offset);
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2012-03-20 12:32:20 +00:00
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proto_tree_add_item( ppcap_tree1, hf_ppcap_length, tvb, offset, 2, ENC_BIG_ENDIAN);
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2012-07-25 14:39:32 +00:00
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offset = offset + 2;
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switch (msg_type) {
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2012-03-20 12:32:20 +00:00
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case 1:
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payload_type = PPCAP_UNKNOWN;
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2012-07-25 14:39:32 +00:00
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offset = dissect_ppcap_payload_type(tvb, ppcap_tree1, offset, msg_len, &payload_type);
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2012-03-20 12:32:20 +00:00
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break;
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case 2:
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2012-07-25 14:39:32 +00:00
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offset = dissect_ppcap_payload_data(tvb, pinfo, ppcap_tree1, offset, msg_len, tree, payload_type);
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2012-03-20 12:32:20 +00:00
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break;
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case 3:
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2012-07-25 14:39:32 +00:00
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offset = dissect_ppcap_source_address(tvb, pinfo, ppcap_tree1, offset, msg_len);
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2012-03-20 12:32:20 +00:00
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break;
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case 4:
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2012-07-25 14:39:32 +00:00
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offset = dissect_ppcap_destination_address(tvb, pinfo, ppcap_tree1, offset, msg_len);
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2012-03-20 12:32:20 +00:00
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break;
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case 256:
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2012-07-25 14:39:32 +00:00
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offset = dissect_ppcap_info_string(tvb, ppcap_tree1, offset, msg_len);
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2012-03-20 12:32:20 +00:00
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break;
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}
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}
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2012-07-25 14:39:32 +00:00
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}
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2012-03-20 12:32:20 +00:00
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/* Dissecting the function Payload type to compare the protocol type */
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/*
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*******************************************************
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* Payload Type *
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* *
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*******************************************************
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*/
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static int
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2012-07-25 14:39:32 +00:00
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dissect_ppcap_payload_type(tvbuff_t *tvb, proto_tree * ppcap_tree1, int offset, guint16 msg_len, payload_type_type *payload_type)
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2012-03-20 12:32:20 +00:00
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{
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char *string;
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2013-09-22 15:50:55 +00:00
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string = tvb_get_string(wmem_packet_scope(), tvb, offset, msg_len);
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2012-07-25 14:39:32 +00:00
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if (strcmp(string,"mtp3") == 0) {
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2012-03-20 12:32:20 +00:00
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*payload_type = PPCAP_MTP3;
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2012-07-25 14:39:32 +00:00
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}else if (strcmp(string,"tcap") == 0) {
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2012-03-20 12:32:20 +00:00
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*payload_type = PPCAP_TCAP;
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2012-07-25 14:39:32 +00:00
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}else if (strcmp(string,"bssap") == 0) {
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2012-03-20 12:32:20 +00:00
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*payload_type = PPCAP_BSSAP;
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2012-07-25 14:39:32 +00:00
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}else if (strcmp(string,"ranap") == 0) {
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2012-03-20 12:32:20 +00:00
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*payload_type = PPCAP_RANAP;
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2012-07-25 14:39:32 +00:00
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}else if (strcmp(string,"h248") == 0) {
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2012-03-20 12:32:20 +00:00
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*payload_type = PPCAP_H248;
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2012-07-25 14:39:32 +00:00
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}else if (strcmp(string,"sip") == 0) {
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2012-03-20 12:32:20 +00:00
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*payload_type = PPCAP_SIP;
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2012-07-25 14:39:32 +00:00
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}else if (strcmp(string,"sccp") == 0) {
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2012-03-20 12:32:20 +00:00
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*payload_type = PPCAP_SCCP;
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}
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proto_tree_add_item(ppcap_tree1, hf_ppcap_payload_type, tvb, offset, msg_len, ENC_BIG_ENDIAN|ENC_ASCII);
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2012-07-25 14:39:32 +00:00
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if (msg_len%4)
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msg_len = msg_len+(4-(msg_len%4));
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offset += msg_len;
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2012-03-20 12:32:20 +00:00
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return offset;
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}
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/* Dissecting the function Source Address */
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/*
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*******************************************************
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* Reserved * Address Type *
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* * *
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*******************************************************
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* Address Value *
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* *
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*******************************************************
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*/
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static int
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2012-07-25 14:39:32 +00:00
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dissect_ppcap_source_address(tvbuff_t *tvb, packet_info *pinfo, proto_tree * ppcap_tree1, int offset, guint16 msg_len)
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{
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2012-03-20 12:32:20 +00:00
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int key1;
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2012-07-25 14:39:32 +00:00
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proto_tree_add_item(ppcap_tree1, hf_ppcap_reserved, tvb, offset, 2, ENC_BIG_ENDIAN);
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offset += 2;
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key1 = tvb_get_ntohs(tvb, offset);
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proto_tree_add_item(ppcap_tree1, hf_ppcap_address_type, tvb, offset, 2, ENC_BIG_ENDIAN);
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offset += 2;
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if (key1 == 1)
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{
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proto_tree_add_item(ppcap_tree1, hf_ppcap_ssn, tvb, offset, 1, ENC_BIG_ENDIAN);
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offset += 1;
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proto_tree_add_item(ppcap_tree1, hf_ppcap_spc, tvb, offset, 3, ENC_BIG_ENDIAN);
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2012-03-20 12:32:20 +00:00
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/*src_addr1 = (guint32 )tvb_get_ntoh24(tvb, offset);*/
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2013-09-15 18:03:32 +00:00
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mtp3_addr_opc = wmem_new0(wmem_packet_scope(), mtp3_addr_pc_t);
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2012-03-20 12:32:20 +00:00
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mtp3_addr_opc->pc = (guint32 )tvb_get_ntoh24(tvb, offset);
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2013-10-13 19:56:52 +00:00
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mtp3_addr_opc->type = ITU_STANDARD;
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2012-03-20 12:32:20 +00:00
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mtp3_addr_opc->ni = 0;
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/*SET_ADDRESS(&pinfo->net_src, AT_SS7PC, sizeof(mtp3_addr_pc_t), (guint8 *) mtp3_addr_opc);*/
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SET_ADDRESS(&pinfo->src, AT_SS7PC, sizeof(mtp3_addr_pc_t), (guint8 *) mtp3_addr_opc);
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2012-07-25 14:39:32 +00:00
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if (msg_len%4)
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msg_len = msg_len + (4 - (msg_len%4));
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2012-03-20 12:32:20 +00:00
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2012-07-25 14:39:32 +00:00
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offset += msg_len-1;
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2012-03-20 12:32:20 +00:00
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return offset;
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}
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2012-07-25 14:39:32 +00:00
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else if (key1 == 2)
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{
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proto_tree_add_item(ppcap_tree1, hf_ppcap_opc, tvb, offset, msg_len, ENC_BIG_ENDIAN);
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2012-03-20 12:32:20 +00:00
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/*src_addr1 = (guint32 )tvb_get_ntoh24(tvb, offset);*/
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2013-09-15 18:03:32 +00:00
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mtp3_addr_opc = wmem_new0(wmem_packet_scope(), mtp3_addr_pc_t);
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2012-03-20 12:32:20 +00:00
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mtp3_addr_opc->pc = tvb_get_ntohl(tvb, offset);
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2013-03-18 21:16:23 +00:00
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mtp3_addr_opc->type = ITU_STANDARD;
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2012-03-20 12:32:20 +00:00
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mtp3_addr_opc->ni = 0;
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SET_ADDRESS(&pinfo->src, AT_SS7PC, sizeof(mtp3_addr_pc_t), (guint8 *) mtp3_addr_opc);
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}
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2012-07-25 14:39:32 +00:00
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else if (key1 == 3)
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2012-03-20 12:32:20 +00:00
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{
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2012-07-25 14:39:32 +00:00
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if (msg_len%4 == 0)
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2012-03-20 12:32:20 +00:00
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{
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2012-07-25 14:39:32 +00:00
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proto_tree_add_ipv4(ppcap_tree1, hf_ppcap_source_ip_address1, tvb, offset, msg_len, tvb_get_ipv4(tvb, offset));
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2012-12-21 17:43:44 +00:00
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|
|
TVB_SET_ADDRESS(&pinfo->net_src, AT_IPv4, tvb, offset, 4);
|
|
|
|
COPY_ADDRESS_SHALLOW(&pinfo->src, &pinfo->net_src);
|
2012-07-25 14:39:32 +00:00
|
|
|
}
|
2012-03-20 12:32:20 +00:00
|
|
|
else
|
2012-07-25 14:39:32 +00:00
|
|
|
{
|
2012-03-20 12:32:20 +00:00
|
|
|
struct e_in6_addr value;
|
2012-07-25 14:39:32 +00:00
|
|
|
tvb_get_ipv6(tvb, offset, &value);
|
|
|
|
proto_tree_add_ipv6(ppcap_tree1, hf_ppcap_source_ip_address2, tvb, offset, msg_len, (guint8*)&value);
|
2012-12-21 17:43:44 +00:00
|
|
|
TVB_SET_ADDRESS(&pinfo->net_src, AT_IPv6, tvb, offset, 6);
|
|
|
|
COPY_ADDRESS_SHALLOW(&pinfo->src, &pinfo->net_src);
|
2012-03-20 12:32:20 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2012-07-25 14:39:32 +00:00
|
|
|
else if (key1 == 4)
|
2012-03-20 12:32:20 +00:00
|
|
|
|
2012-07-25 14:39:32 +00:00
|
|
|
{
|
2012-03-20 12:32:20 +00:00
|
|
|
proto_tree_add_item(ppcap_tree1, hf_ppcap_source_nodeid, tvb, offset, msg_len, ENC_BIG_ENDIAN|ENC_ASCII);
|
2012-12-21 17:43:44 +00:00
|
|
|
TVB_SET_ADDRESS(&pinfo->net_src, AT_STRINGZ, tvb, offset, msg_len);
|
|
|
|
COPY_ADDRESS_SHALLOW(&pinfo->src, &pinfo->net_src);
|
2012-03-20 12:32:20 +00:00
|
|
|
}
|
2012-07-25 14:39:32 +00:00
|
|
|
if (msg_len%4)
|
|
|
|
msg_len = msg_len + (4 - (msg_len%4));
|
|
|
|
offset += msg_len;
|
2012-03-20 12:32:20 +00:00
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Dissecting the function Destination Address */
|
2012-07-25 14:39:32 +00:00
|
|
|
|
|
|
|
/*
|
2012-03-20 12:32:20 +00:00
|
|
|
*******************************************************
|
|
|
|
* Reserved * Address Type *
|
|
|
|
* * *
|
|
|
|
*******************************************************
|
|
|
|
* Address Value *
|
|
|
|
* *
|
|
|
|
*******************************************************
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
2012-07-25 14:39:32 +00:00
|
|
|
dissect_ppcap_destination_address(tvbuff_t *tvb, packet_info * pinfo, proto_tree * ppcap_tree1, int offset, guint16 msg_len )
|
2012-03-20 12:32:20 +00:00
|
|
|
{
|
|
|
|
int key2;
|
2012-07-25 14:39:32 +00:00
|
|
|
|
|
|
|
proto_tree_add_item(ppcap_tree1, hf_ppcap_destreserved, tvb, offset, 2, ENC_BIG_ENDIAN);
|
|
|
|
offset += 2;
|
|
|
|
|
|
|
|
key2 = tvb_get_ntohs(tvb, offset);
|
|
|
|
proto_tree_add_item(ppcap_tree1, hf_ppcap_address_type, tvb, offset, 2, ENC_BIG_ENDIAN);
|
|
|
|
offset += 2;
|
|
|
|
|
|
|
|
if (key2 == 1)
|
|
|
|
{
|
|
|
|
ssn = tvb_get_guint8(tvb, offset);
|
|
|
|
proto_tree_add_item(ppcap_tree1, hf_ppcap_ssn1, tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
|
|
offset += 1;
|
|
|
|
|
|
|
|
proto_tree_add_item(ppcap_tree1, hf_ppcap_spc1, tvb, offset, 3, ENC_BIG_ENDIAN);
|
|
|
|
|
2012-03-20 12:32:20 +00:00
|
|
|
/*dst_addr1 = (guint32 )tvb_get_ntoh24(tvb, offset);*/
|
2013-09-15 18:03:32 +00:00
|
|
|
mtp3_addr_dpc = wmem_new0(wmem_packet_scope(), mtp3_addr_pc_t);
|
2012-03-20 12:32:20 +00:00
|
|
|
mtp3_addr_dpc->pc = (guint32)tvb_get_ntoh24(tvb, offset);
|
2013-03-18 21:16:23 +00:00
|
|
|
mtp3_addr_dpc->type = ITU_STANDARD;
|
2012-03-20 12:32:20 +00:00
|
|
|
mtp3_addr_dpc->ni = 0;
|
|
|
|
SET_ADDRESS(&pinfo->dst, AT_SS7PC, sizeof(mtp3_addr_pc_t), (guint8 *) mtp3_addr_dpc);
|
2012-07-25 14:39:32 +00:00
|
|
|
|
|
|
|
if (msg_len%4)
|
|
|
|
msg_len = msg_len + (4 - (msg_len%4));
|
|
|
|
|
|
|
|
offset += msg_len-1;
|
2012-03-20 12:32:20 +00:00
|
|
|
return offset;
|
|
|
|
|
|
|
|
}
|
2012-07-25 14:39:32 +00:00
|
|
|
else if (key2 == 2)
|
2012-03-20 12:32:20 +00:00
|
|
|
{
|
2012-07-25 14:39:32 +00:00
|
|
|
proto_tree_add_item(ppcap_tree1, hf_ppcap_dpc, tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
|
|
|
2012-03-20 12:32:20 +00:00
|
|
|
/*dst_addr1 = (guint32 )tvb_get_ntoh24(tvb, offset);*/
|
2013-09-15 18:03:32 +00:00
|
|
|
mtp3_addr_dpc = wmem_new0(wmem_packet_scope(), mtp3_addr_pc_t);
|
2012-03-20 12:32:20 +00:00
|
|
|
mtp3_addr_dpc->pc = tvb_get_ntohl(tvb, offset);
|
2013-03-18 21:16:23 +00:00
|
|
|
mtp3_addr_dpc->type = ITU_STANDARD;
|
2012-03-20 12:32:20 +00:00
|
|
|
mtp3_addr_dpc->ni = 0;
|
|
|
|
SET_ADDRESS(&pinfo->dst, AT_SS7PC, sizeof(mtp3_addr_pc_t), (guint8 *) mtp3_addr_dpc);
|
|
|
|
}
|
2012-07-25 14:39:32 +00:00
|
|
|
else if (key2 == 3)
|
2012-03-20 12:32:20 +00:00
|
|
|
{
|
2012-07-25 14:39:32 +00:00
|
|
|
if (msg_len%4 == 0)
|
2012-03-20 12:32:20 +00:00
|
|
|
{
|
2012-07-25 14:39:32 +00:00
|
|
|
proto_tree_add_ipv4(ppcap_tree1, hf_ppcap_destination_ip_address1, tvb, offset, msg_len, tvb_get_ipv4(tvb, offset));
|
2012-12-21 17:43:44 +00:00
|
|
|
TVB_SET_ADDRESS(&pinfo->net_dst, AT_IPv4, tvb, offset, 4);
|
|
|
|
COPY_ADDRESS_SHALLOW(&pinfo->dst, &pinfo->net_dst);
|
2012-07-25 14:39:32 +00:00
|
|
|
}
|
2012-03-20 12:32:20 +00:00
|
|
|
else
|
|
|
|
{
|
2012-07-25 14:39:32 +00:00
|
|
|
struct e_in6_addr value;
|
2012-03-20 12:32:20 +00:00
|
|
|
|
2012-07-25 14:39:32 +00:00
|
|
|
tvb_get_ipv6(tvb, offset,&value);
|
|
|
|
proto_tree_add_ipv6(ppcap_tree1, hf_ppcap_destination_ip_address2, tvb, offset, msg_len, (guint8*)&value);
|
2012-12-21 17:43:44 +00:00
|
|
|
TVB_SET_ADDRESS(&pinfo->net_dst, AT_IPv6, tvb, offset, 6);
|
|
|
|
COPY_ADDRESS_SHALLOW(&pinfo->dst, &pinfo->net_dst);
|
2012-03-20 12:32:20 +00:00
|
|
|
}
|
2012-07-25 14:39:32 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
else if (key2 == 4)
|
2012-03-20 12:32:20 +00:00
|
|
|
{
|
|
|
|
char *string;
|
2013-09-22 15:50:55 +00:00
|
|
|
string = tvb_get_string(wmem_packet_scope(), tvb, offset, msg_len);
|
2012-07-25 14:39:32 +00:00
|
|
|
proto_tree_add_string(ppcap_tree1, hf_ppcap_destination_nodeid, tvb, offset, msg_len, string);
|
2012-12-21 17:43:44 +00:00
|
|
|
TVB_SET_ADDRESS(&pinfo->net_dst, AT_STRINGZ, tvb, offset, msg_len);
|
|
|
|
COPY_ADDRESS_SHALLOW(&pinfo->dst, &pinfo->net_dst);
|
2012-07-25 14:39:32 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
if (msg_len%4)
|
|
|
|
msg_len = msg_len+(4-(msg_len%4));
|
|
|
|
offset += msg_len;
|
2012-03-20 12:32:20 +00:00
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Dissecting the function Info String */
|
|
|
|
|
|
|
|
/*
|
|
|
|
*******************************************************
|
|
|
|
* Info *
|
|
|
|
* *
|
|
|
|
*******************************************************
|
|
|
|
*/
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_ppcap_info_string(tvbuff_t *tvb, proto_tree * ppcap_tree1, int offset, guint16 msg_len)
|
|
|
|
{
|
2012-07-25 14:39:32 +00:00
|
|
|
proto_tree_add_item(ppcap_tree1, hf_ppcap_info, tvb, offset, msg_len, ENC_ASCII|ENC_NA);
|
|
|
|
|
|
|
|
if (msg_len%4)
|
2012-03-20 12:32:20 +00:00
|
|
|
msg_len = msg_len +( 4- (msg_len%4));
|
2012-07-25 14:39:32 +00:00
|
|
|
offset += msg_len;
|
2012-03-20 12:32:20 +00:00
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Dissecting the function Payload Data to call the protocol that based upon the type decided in the Payload Type */
|
|
|
|
|
|
|
|
/*
|
|
|
|
*******************************************************
|
|
|
|
* Payload Data *
|
|
|
|
* *
|
|
|
|
*******************************************************
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
2012-07-25 14:39:32 +00:00
|
|
|
dissect_ppcap_payload_data(tvbuff_t *tvb, packet_info *pinfo, proto_tree * ppcap_tree1, int offset, guint16 msg_len, proto_tree *tree, payload_type_type payload_type)
|
2012-03-20 12:32:20 +00:00
|
|
|
{
|
|
|
|
tvbuff_t *next_tvb;
|
|
|
|
|
2012-07-25 14:39:32 +00:00
|
|
|
proto_tree_add_item(ppcap_tree1, hf_ppcap_payload_data, tvb, offset, msg_len, ENC_NA);
|
2012-03-20 12:32:20 +00:00
|
|
|
|
2012-07-25 14:39:32 +00:00
|
|
|
if (msg_len%4)
|
2012-03-20 12:32:20 +00:00
|
|
|
msg_len = msg_len +( 4- (msg_len%4));
|
|
|
|
|
|
|
|
next_tvb = tvb_new_subset_remaining(tvb, offset);
|
|
|
|
|
2012-07-25 14:39:32 +00:00
|
|
|
switch (payload_type) {
|
2012-03-20 12:32:20 +00:00
|
|
|
case PPCAP_MTP3:
|
2012-07-25 14:39:32 +00:00
|
|
|
call_dissector(mtp3_handle, next_tvb, pinfo, tree); /* calling the MTP3 handle */
|
2012-03-20 12:32:20 +00:00
|
|
|
break;
|
|
|
|
case PPCAP_TCAP:
|
|
|
|
/*
|
2012-07-25 14:39:32 +00:00
|
|
|
* The protocol which runs on TCAP takes the SSN value from the SCCP layer which is missing in this case.
|
2012-03-20 12:32:20 +00:00
|
|
|
* So we have made code changes for TCAP handle as below for taking the SSN value from ppcap.
|
|
|
|
*/
|
|
|
|
if (ssn != INVALID_SSN && dissector_try_uint(sccp_ssn_dissector_table, ssn, next_tvb, pinfo, tree)) {
|
|
|
|
return offset+msg_len;
|
|
|
|
}else{
|
2012-07-25 14:39:32 +00:00
|
|
|
call_dissector(tcap_handle, next_tvb, pinfo, tree); /* calling the TCAP handle */
|
2012-03-20 12:32:20 +00:00
|
|
|
}
|
|
|
|
break;
|
|
|
|
case PPCAP_BSSAP:
|
2012-07-25 14:39:32 +00:00
|
|
|
call_dissector(bssap_handle, next_tvb, pinfo, tree); /* calling the BSSAP handle */
|
2012-03-20 12:32:20 +00:00
|
|
|
break;
|
|
|
|
case PPCAP_RANAP:
|
2012-07-25 14:39:32 +00:00
|
|
|
call_dissector(ranap_handle, next_tvb, pinfo, tree); /* calling the RANAP handle */
|
2012-03-20 12:32:20 +00:00
|
|
|
break;
|
|
|
|
case PPCAP_H248:
|
2012-07-25 14:39:32 +00:00
|
|
|
call_dissector(h248_handle, next_tvb, pinfo, tree); /* calling the H248 handle */
|
2012-03-20 12:32:20 +00:00
|
|
|
break;
|
|
|
|
case PPCAP_SIP:
|
2012-07-25 14:39:32 +00:00
|
|
|
call_dissector(sip_handle, next_tvb, pinfo, tree); /* calling the SIP handle */
|
2012-03-20 12:32:20 +00:00
|
|
|
break;
|
|
|
|
case PPCAP_SCCP:
|
2012-07-25 14:39:32 +00:00
|
|
|
call_dissector(sccp_handle, next_tvb, pinfo, tree); /* calling the SCCP handle */
|
2012-03-20 12:32:20 +00:00
|
|
|
break;
|
|
|
|
default:
|
2012-07-25 14:39:32 +00:00
|
|
|
call_dissector(data_handle, next_tvb, pinfo, tree); /* calling the DATA handle */
|
2012-03-20 12:32:20 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
2012-07-25 14:39:32 +00:00
|
|
|
offset += msg_len;
|
2012-03-20 12:32:20 +00:00
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Registering the hf variables */
|
2012-07-25 14:39:32 +00:00
|
|
|
|
2012-03-20 12:32:20 +00:00
|
|
|
void proto_register_ppcap(void)
|
|
|
|
{
|
|
|
|
|
|
|
|
static hf_register_info hf[] = {
|
|
|
|
{ &hf_ppcap_length,
|
2012-07-25 14:39:32 +00:00
|
|
|
{ "Length", "ppcap.length",
|
|
|
|
FT_UINT16, BASE_DEC, NULL, 0x00, NULL, HFILL}},
|
2012-03-20 12:32:20 +00:00
|
|
|
{ &hf_ppcap_payload_type,
|
|
|
|
{ "Payload Type" , "ppcap.payload_type", FT_STRING,
|
2012-07-25 14:39:32 +00:00
|
|
|
BASE_NONE, NULL, 0x0 , NULL, HFILL}},
|
2012-03-20 12:32:20 +00:00
|
|
|
{ &hf_ppcap_reserved,
|
|
|
|
{ "Reserved", "ppcap.reserved", FT_UINT16,
|
|
|
|
BASE_DEC, NULL, 0x00, NULL, HFILL}},
|
|
|
|
{ &hf_ppcap_address_type,
|
|
|
|
{ "Address Type", "ppcap.address_type", FT_UINT16,
|
2012-07-25 14:39:32 +00:00
|
|
|
BASE_DEC, VALS(address_type_values), 0x00 , NULL, HFILL}},
|
2013-01-31 18:31:28 +00:00
|
|
|
#if 0
|
2012-07-25 14:39:32 +00:00
|
|
|
{ &hf_ppcap_source_address_type,
|
2012-03-20 12:32:20 +00:00
|
|
|
{ "Source Address Type", "ppcap.source_address_type", FT_UINT16,
|
2012-07-25 14:39:32 +00:00
|
|
|
BASE_DEC, VALS(address_type_values), 0x00 , NULL, HFILL}},
|
2013-01-31 18:31:28 +00:00
|
|
|
#endif
|
2012-03-20 12:32:20 +00:00
|
|
|
{ &hf_ppcap_ssn,
|
|
|
|
{ "SSN", "ppcap.ssn", FT_UINT16,
|
2012-07-25 14:39:32 +00:00
|
|
|
BASE_DEC, NULL, 0x00, NULL, HFILL}},
|
2012-03-20 12:32:20 +00:00
|
|
|
{ &hf_ppcap_spc,
|
|
|
|
{"OPC", "ppcap.spc", FT_UINT16,
|
|
|
|
BASE_DEC, NULL, 0x00, NULL, HFILL}},
|
|
|
|
{ &hf_ppcap_opc,
|
|
|
|
{ "OPC", "ppcap.opc", FT_UINT16,
|
|
|
|
BASE_DEC, NULL, 0x00, NULL, HFILL}},
|
|
|
|
{ &hf_ppcap_source_ip_address1,
|
|
|
|
{ "Source IP Addresss", "ppcap.source_ip_address1", FT_IPv4,
|
|
|
|
BASE_NONE, NULL, 0x00, NULL, HFILL}},
|
|
|
|
{ &hf_ppcap_source_ip_address2,
|
|
|
|
{ "Source IP Address", "ppcap.source_ip_address2", FT_IPv6,
|
|
|
|
BASE_NONE, NULL, 0x00, NULL, HFILL}},
|
|
|
|
{ &hf_ppcap_destreserved,
|
|
|
|
{ "Reserved", "ppcap.destreserved", FT_UINT16,
|
|
|
|
BASE_DEC, NULL, 0x00, NULL, HFILL}},
|
2013-01-31 18:31:28 +00:00
|
|
|
#if 0
|
2012-07-25 14:39:32 +00:00
|
|
|
{ &hf_ppcap_destination_address_type,
|
2012-03-20 12:32:20 +00:00
|
|
|
{ "Destination Address Type", "ppcap.destination_address_type", FT_UINT16,
|
2012-07-25 14:39:32 +00:00
|
|
|
BASE_DEC, VALS(address_type_values), 0x00, NULL, HFILL}},
|
2013-01-31 18:31:28 +00:00
|
|
|
#endif
|
2012-03-20 12:32:20 +00:00
|
|
|
{ &hf_ppcap_ssn1,
|
|
|
|
{ "SSN", "ppcap.ssn1", FT_UINT8,
|
|
|
|
BASE_DEC, NULL, 0x00, NULL, HFILL}},
|
|
|
|
{ &hf_ppcap_spc1,
|
|
|
|
{ "DPC", "ppcap.spc1", FT_UINT24,
|
|
|
|
BASE_DEC, NULL, 0x00, NULL, HFILL}},
|
|
|
|
{ &hf_ppcap_dpc,
|
|
|
|
{ "DPC", "ppcap.dpc", FT_UINT32,
|
|
|
|
BASE_DEC, NULL, 0x00, NULL, HFILL}},
|
|
|
|
{ &hf_ppcap_destination_ip_address1,
|
|
|
|
{ "Destination IP Address", "ppcap.destination_ip_address1", FT_IPv4,
|
|
|
|
BASE_NONE, NULL, 0x00, NULL, HFILL}},
|
|
|
|
{ &hf_ppcap_destination_ip_address2,
|
|
|
|
{ "Destination IP Address", "ppcap.destination_ip_address2", FT_IPv6,
|
|
|
|
BASE_NONE, NULL, 0x00, NULL, HFILL}},
|
|
|
|
{ &hf_ppcap_source_nodeid,
|
|
|
|
{ "Source Node ID", "ppcap.source_nodeid", FT_STRING,
|
|
|
|
BASE_NONE, NULL, 0x00, NULL, HFILL}},
|
|
|
|
{ &hf_ppcap_destination_nodeid,
|
|
|
|
{ "Destination Node ID", "ppcap.destination_address_value", FT_STRING,
|
|
|
|
BASE_NONE, NULL, 0x00, NULL, HFILL}},
|
|
|
|
{ &hf_ppcap_info,
|
|
|
|
{ "Info", "ppcap.info", FT_STRING,
|
|
|
|
BASE_NONE, NULL, 0x0000, NULL, HFILL}},
|
|
|
|
{ &hf_ppcap_payload_data,
|
|
|
|
{ "Payload Data", "ppcap.payload_data", FT_BYTES,
|
|
|
|
BASE_NONE, NULL, 0x0000, NULL, HFILL}},
|
|
|
|
};
|
|
|
|
|
|
|
|
static gint *ett[]= {
|
|
|
|
&ett_ppcap,
|
|
|
|
&ett_ppcap1,
|
|
|
|
&ett_ppcap_new,
|
|
|
|
};
|
|
|
|
proto_ppcap = proto_register_protocol("Proprietary PCAP", "PPCAP", "ppcap");
|
|
|
|
proto_register_field_array(proto_ppcap , hf , array_length(hf));
|
|
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
|
|
register_dissector("ppcap", dissect_ppcap, proto_ppcap);
|
|
|
|
}
|
|
|
|
|
|
|
|
void proto_reg_handoff_ppcap(void)
|
|
|
|
{
|
|
|
|
ppcap_handle = find_dissector("ppcap");
|
2012-07-25 14:39:32 +00:00
|
|
|
mtp3_handle = find_dissector("mtp3"); /* calling the protocol MTP3 */
|
|
|
|
tcap_handle = find_dissector("tcap"); /* calling the protocol TCAP */
|
|
|
|
bssap_handle = find_dissector("bssap"); /* calling the protocol BSSAP */
|
|
|
|
ranap_handle = find_dissector("ranap"); /* calling the protocol RANAP */
|
|
|
|
h248_handle = find_dissector("h248"); /* calling the protocol H248 */
|
|
|
|
sip_handle = find_dissector("sip"); /* calling the protocol SIP */
|
|
|
|
sccp_handle = find_dissector("sccp"); /* calling the protocol SCCP */
|
|
|
|
data_handle = find_dissector("data"); /* calling the protocol DATA */
|
|
|
|
|
2012-03-20 12:32:20 +00:00
|
|
|
sccp_ssn_dissector_table = find_dissector_table("sccp.ssn");
|
|
|
|
|
|
|
|
}
|