181 lines
6.2 KiB
C
181 lines
6.2 KiB
C
/* packet-ftam_asn1.c
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* Routine to dissect OSI ISO 8571 FTAM Protocol packets
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* based on the ASN.1 specification from http://www.itu.int/ITU-T/asn1/database/iso/8571-4/1988/
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*
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* also based on original handwritten dissector by
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* Yuriy Sidelnikov <YSidelnikov@hotmail.com>
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*
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* Anders Broman and Ronnie Sahlberg 2005 - 2006
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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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#include "config.h"
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#include <epan/packet.h>
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#include <epan/expert.h>
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#include <epan/oids.h>
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#include <epan/asn1.h>
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#include "packet-ber.h"
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#include "packet-acse.h"
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#include "packet-ftam.h"
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#define PNAME "ISO 8571 FTAM"
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#define PSNAME "FTAM"
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#define PFNAME "ftam"
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void proto_register_ftam(void);
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void proto_reg_handoff_ftam(void);
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/* Initialize the protocol and registered fields */
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static int proto_ftam = -1;
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/* Declare the function to avoid a compiler warning */
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static int dissect_ftam_OR_Set(gboolean implicit_tag _U_, tvbuff_t *tvb, int offset, asn1_ctx_t *actx, proto_tree *tree, int hf_index _U_);
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static int hf_ftam_unstructured_text = -1; /* ISO FTAM unstructured text */
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static int hf_ftam_unstructured_binary = -1; /* ISO FTAM unstructured binary */
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#include "packet-ftam-hf.c"
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/* Initialize the subtree pointers */
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static gint ett_ftam = -1;
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#include "packet-ftam-ett.c"
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static expert_field ei_ftam_zero_pdu = EI_INIT;
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#include "packet-ftam-fn.c"
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/*
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* Dissect FTAM unstructured text
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*/
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static int
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dissect_ftam_unstructured_text(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *parent_tree, void* data _U_)
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{
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proto_tree_add_item (parent_tree, hf_ftam_unstructured_text, tvb, 0, tvb_reported_length_remaining(tvb, 0), ENC_ASCII|ENC_NA);
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return tvb_captured_length(tvb);
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}
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/*
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* Dissect FTAM unstructured binary
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*/
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static int
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dissect_ftam_unstructured_binary(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *parent_tree, void* data _U_)
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{
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proto_tree_add_item (parent_tree, hf_ftam_unstructured_binary, tvb, 0, tvb_reported_length_remaining(tvb, 0), ENC_NA);
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return tvb_captured_length(tvb);
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}
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/*
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* Dissect FTAM PDUs inside a PPDU.
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*/
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static int
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dissect_ftam(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree, void* data _U_)
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{
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int offset = 0;
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int old_offset;
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proto_item *item=NULL;
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proto_tree *tree=NULL;
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asn1_ctx_t asn1_ctx;
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asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, TRUE, pinfo);
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if(parent_tree){
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item = proto_tree_add_item(parent_tree, proto_ftam, tvb, 0, -1, ENC_NA);
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tree = proto_item_add_subtree(item, ett_ftam);
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}
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "FTAM");
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col_clear(pinfo->cinfo, COL_INFO);
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while (tvb_reported_length_remaining(tvb, offset) > 0){
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old_offset=offset;
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offset=dissect_ftam_PDU(FALSE, tvb, offset, &asn1_ctx, tree, -1);
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if(offset == old_offset){
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proto_tree_add_expert(tree, pinfo, &ei_ftam_zero_pdu, tvb, offset, -1);
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break;
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}
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}
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return tvb_captured_length(tvb);
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}
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/*--- proto_register_ftam -------------------------------------------*/
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void proto_register_ftam(void) {
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/* List of fields */
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static hf_register_info hf[] =
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{
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{ &hf_ftam_unstructured_text,
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{ "ISO FTAM unstructured text", "ftam.unstructured_text", FT_STRING,
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BASE_NONE, NULL, 0x0, NULL, HFILL } },
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{ &hf_ftam_unstructured_binary,
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{ "ISO FTAM unstructured binary", "ftam.unstructured_binary", FT_BYTES,
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BASE_NONE, NULL, 0x0, NULL, HFILL } },
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#include "packet-ftam-hfarr.c"
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};
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/* List of subtrees */
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static gint *ett[] = {
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&ett_ftam,
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#include "packet-ftam-ettarr.c"
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};
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static ei_register_info ei[] = {
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{ &ei_ftam_zero_pdu, { "ftam.zero_pdu", PI_PROTOCOL, PI_ERROR, "Internal error, zero-byte FTAM PDU", EXPFILL }},
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};
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expert_module_t* expert_ftam;
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/* Register protocol */
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proto_ftam = proto_register_protocol(PNAME, PSNAME, PFNAME);
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register_dissector("ftam", dissect_ftam, proto_ftam);
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/* Register fields and subtrees */
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proto_register_field_array(proto_ftam, hf, array_length(hf));
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proto_register_subtree_array(ett, array_length(ett));
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expert_ftam = expert_register_protocol(proto_ftam);
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expert_register_field_array(expert_ftam, ei, array_length(ei));
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}
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/*--- proto_reg_handoff_ftam --- */
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void proto_reg_handoff_ftam(void) {
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register_ber_oid_dissector("1.0.8571.1.1", dissect_ftam, proto_ftam,"iso-ftam(1)");
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register_ber_oid_dissector("1.0.8571.2.1", dissect_ftam, proto_ftam,"ftam-pci(1)");
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register_ber_oid_dissector("1.3.14.5.2.2", dissect_ftam, proto_ftam,"NIST file directory entry abstract syntax");
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/* Unstructured text file document type FTAM-1 */
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register_ber_oid_dissector("1.0.8571.5.1", dissect_ftam_unstructured_text, proto_ftam,"ISO FTAM unstructured text");
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oid_add_from_string("ISO FTAM sequential text","1.0.8571.5.2");
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oid_add_from_string("FTAM unstructured text abstract syntax","1.0.8571.2.3");
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oid_add_from_string("FTAM simple-hierarchy","1.0.8571.2.5");
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oid_add_from_string("FTAM hierarchical file model","1.0.8571.3.1");
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oid_add_from_string("FTAM unstructured constraint set","1.0.8571.4.1");
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/* Unstructured binary file document type FTAM-3 */
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register_ber_oid_dissector("1.0.8571.5.3", dissect_ftam_unstructured_binary, proto_ftam,"ISO FTAM unstructured binary");
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oid_add_from_string("FTAM unstructured binary abstract syntax","1.0.8571.2.4");
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/* Filedirectory file document type NBS-9 */
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oid_add_from_string("NBS-9 FTAM file directory file","1.3.14.5.5.9");
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/* Filedirectory file document type NBS-9 (WITH OLD NIST OIDs)*/
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oid_add_from_string("NBS-9-OLD FTAM file directory file","1.3.9999.1.5.9");
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oid_add_from_string("NIST file directory entry abstract syntax","1.3.9999.1.2.2");
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}
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