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