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(Using sed : sed -i '/^ \* \$Id\$/,+1 d') Fix manually some typo (in export_object_dicom.c and crc16-plain.c) Change-Id: I4c1ae68d1c4afeace8cb195b53c715cf9e1227a8 Reviewed-on: https://code.wireshark.org/review/497 Reviewed-by: Anders Broman <a.broman58@gmail.com>
234 lines
7.8 KiB
C
234 lines
7.8 KiB
C
/* packet-tali.c
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*
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* Routines for Transport Adapter Layer Interface (TALI) version 1.0 dissection (RFC 3094)
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*
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* Copyright : 2004 Viorel Suman, <vsuman[AT]avmob.ro>
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* In association with Avalanche Mobile BV, http://www.avmob.com
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*
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* Dissector of a TALI (Transport Adapter Layer Interface) version 1.0, as defined by the
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* Tekelec (www.tekelec.com) in RFC 3094, http://www.ietf.org/rfc/rfc3094.txt
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*
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* Refer to the AUTHORS file or the AUTHORS section in the man page
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* for contacting the author(s) of this file.
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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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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#define NEW_PROTO_TREE_API
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#include "config.h"
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#include <string.h>
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#include <glib.h>
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#include <epan/packet.h>
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#include <epan/prefs.h>
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#include "packet-tcp.h"
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#define TALI_SYNC_LENGTH 4
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#define TALI_OPCODE_LENGTH 4
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#define TALI_MSU_LENGTH 2
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#define TALI_HEADER_LENGTH TALI_SYNC_LENGTH + TALI_OPCODE_LENGTH + TALI_MSU_LENGTH
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#define TALI_SYNC "TALI"
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#define TALI_TEST "test"
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#define TALI_ALLO "allo"
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#define TALI_PROH "proh"
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#define TALI_PROA "proa"
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#define TALI_MONI "moni"
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#define TALI_MONA "mona"
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#define TALI_SCCP "sccp"
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#define TALI_ISOT "isot"
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#define TALI_MTP3 "mtp3"
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#define TALI_SAAL "saal"
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void proto_reg_handoff_tali(void);
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void proto_register_tali(void);
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/* Initialize the subtree pointers */
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static gint ett_tali = -1;
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static gint ett_tali_sync = -1;
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static gint ett_tali_opcode = -1;
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static gint ett_tali_msu_length = -1;
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static header_field_info *hfi_tali = NULL;
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#define TALI_HFI_INIT HFI_INIT(proto_tali)
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/* Initialize the protocol and registered fields */
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static header_field_info hfi_tali_sync_indicator TALI_HFI_INIT =
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{ "Sync", "tali.sync", FT_STRING, BASE_NONE, NULL, 0x00, "TALI SYNC", HFILL };
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static header_field_info hfi_tali_opcode_indicator TALI_HFI_INIT =
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{ "Opcode", "tali.opcode", FT_STRING, BASE_NONE, NULL, 0x00, "TALI Operation Code", HFILL };
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static header_field_info hfi_tali_length_indicator TALI_HFI_INIT =
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{ "Length", "tali.msu_length", FT_UINT16, BASE_DEC, NULL, 0x00, "TALI MSU Length", HFILL };
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static dissector_table_t tali_dissector_table;
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static dissector_handle_t data_handle;
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/* Desegment TALI messages */
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static gboolean tali_desegment = TRUE;
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/* Code to actually dissect the packets */
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static guint
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get_tali_pdu_len(packet_info *pinfo _U_, tvbuff_t *tvb, int offset)
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{
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guint16 length;
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length = tvb_get_letohs(tvb, offset + TALI_SYNC_LENGTH + TALI_OPCODE_LENGTH);
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return length+TALI_HEADER_LENGTH;
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}
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static int
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dissect_tali_pdu(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
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{
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char opcode[TALI_OPCODE_LENGTH+1]; /* TALI opcode */
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guint16 length; /* TALI length */
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tvbuff_t *payload_tvb = NULL;
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/* Set up structures needed to add the protocol subtree and manage it */
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proto_item *tali_item = NULL;
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proto_tree *tali_tree = NULL;
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tvb_memcpy(tvb, (guint8*)opcode, TALI_SYNC_LENGTH, TALI_OPCODE_LENGTH);
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opcode[TALI_OPCODE_LENGTH] = '\0';
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length = tvb_get_letohs(tvb, TALI_SYNC_LENGTH + TALI_OPCODE_LENGTH);
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/* Make entries in Protocol column on summary display */
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "TALI");
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col_set_str(pinfo->cinfo, COL_INFO, "");
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col_append_fstr(pinfo->cinfo, COL_INFO, "[%s] packet, [%u] bytes in payload", opcode, length);
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if (tree) {
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/* create display subtree for the protocol */
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tali_item = proto_tree_add_item(tree, hfi_tali, tvb, 0, TALI_HEADER_LENGTH, ENC_NA);
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tali_tree = proto_item_add_subtree(tali_item, ett_tali);
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proto_tree_add_string(tali_tree, &hfi_tali_sync_indicator, tvb, 0, TALI_SYNC_LENGTH, TALI_SYNC);
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proto_tree_add_string(tali_tree, &hfi_tali_opcode_indicator, tvb, TALI_SYNC_LENGTH, TALI_OPCODE_LENGTH, opcode);
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proto_tree_add_uint(tali_tree, &hfi_tali_length_indicator, tvb, TALI_SYNC_LENGTH + TALI_OPCODE_LENGTH, TALI_MSU_LENGTH, length);
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}
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if (length > 0) {
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payload_tvb = tvb_new_subset_remaining(tvb, TALI_HEADER_LENGTH);
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if (payload_tvb != NULL && !dissector_try_string(tali_dissector_table, opcode, payload_tvb, pinfo, tree, NULL)) {
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call_dissector(data_handle, payload_tvb, pinfo, tree);
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}
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}
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return tvb_length(tvb);
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}
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static int
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dissect_tali(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data)
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{
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tcp_dissect_pdus(tvb, pinfo, tree, tali_desegment, TALI_HEADER_LENGTH,
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get_tali_pdu_len, dissect_tali_pdu, data);
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return tvb_length(tvb);
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}
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/*
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* A 'heuristic dissector' that attemtps to establish whether we have
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* a TALI MSU here.
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* Only works when:
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* the fixed header is there
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* it is a 'well-known' operation
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*/
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static gboolean
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dissect_tali_heur(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
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{
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char opcode[TALI_OPCODE_LENGTH]; /* TALI opcode */
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if (tvb_reported_length(tvb) < TALI_HEADER_LENGTH) /* Mandatory header */
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return FALSE;
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if (tvb_strneql(tvb, 0, TALI_SYNC, TALI_SYNC_LENGTH) != 0)
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return FALSE;
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tvb_memcpy(tvb, (guint8*)opcode, TALI_SYNC_LENGTH, TALI_OPCODE_LENGTH);
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if (strncmp(opcode, TALI_TEST, TALI_OPCODE_LENGTH) != 0 &&
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strncmp(opcode, TALI_ALLO, TALI_OPCODE_LENGTH) != 0 &&
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strncmp(opcode, TALI_PROH, TALI_OPCODE_LENGTH) != 0 &&
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strncmp(opcode, TALI_PROA, TALI_OPCODE_LENGTH) != 0 &&
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strncmp(opcode, TALI_MONI, TALI_OPCODE_LENGTH) != 0 &&
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strncmp(opcode, TALI_MONA, TALI_OPCODE_LENGTH) != 0 &&
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strncmp(opcode, TALI_SCCP, TALI_OPCODE_LENGTH) != 0 &&
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strncmp(opcode, TALI_ISOT, TALI_OPCODE_LENGTH) != 0 &&
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strncmp(opcode, TALI_MTP3, TALI_OPCODE_LENGTH) != 0 &&
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strncmp(opcode, TALI_SAAL, TALI_OPCODE_LENGTH) != 0)
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return FALSE;
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dissect_tali(tvb, pinfo, tree, data);
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return TRUE;
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}
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void
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proto_register_tali(void)
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{
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#ifndef HAVE_HFI_SECTION_INIT
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static header_field_info *hfi[] = {
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&hfi_tali_sync_indicator,
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&hfi_tali_opcode_indicator,
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&hfi_tali_length_indicator
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};
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#endif
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/* Setup protocol subtree array */
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static gint *ett[] = {
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&ett_tali,
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&ett_tali_sync,
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&ett_tali_opcode,
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&ett_tali_msu_length
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};
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module_t *tali_module;
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int proto_tali;
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/* Register the protocol name and description */
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proto_tali = proto_register_protocol("Transport Adapter Layer Interface v1.0, RFC 3094", "TALI", "tali");
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hfi_tali = proto_registrar_get_nth(proto_tali);
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new_register_dissector("tali", dissect_tali, proto_tali);
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/* Required function calls to register the header fields and subtrees used */
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proto_register_fields(proto_tali, hfi, array_length(hfi));
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proto_register_subtree_array(ett, array_length(ett));
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tali_dissector_table = register_dissector_table("tali.opcode", "Tali OPCODE", FT_STRING, BASE_NONE);
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tali_module = prefs_register_protocol(proto_tali, NULL);
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prefs_register_bool_preference(tali_module, "reassemble",
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"Reassemble TALI messages spanning multiple TCP segments",
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"Whether the TALI dissector should reassemble messages spanning multiple TCP segments."
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" To use this option, you must also enable \"Allow subdissectors to reassemble TCP streams\" in the TCP protocol settings.",
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&tali_desegment);
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}
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void
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proto_reg_handoff_tali(void)
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{
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heur_dissector_add("tcp", dissect_tali_heur, hfi_tali->id);
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data_handle = find_dissector("data");
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}
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