/* Do not modify this file. */ /* It is created automatically by the ASN.1 to Wireshark dissector compiler */ /* packet-cdt.c */ /* ../../tools/asn2wrs.py -b -p cdt -c cdt.cnf -s packet-cdt-template cdt.asn */ /* Input file: packet-cdt-template.c */ #line 1 "packet-cdt-template.c" /* packet-cdt.c * * Routines for Compressed Data Type packet dissection. * * Copyright 2005, Stig Bjørlykke , Thales Norway AS * * $Id$ * * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * * Ref: STANAG 4406 Annex E */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include #include #include #include #include "packet-ber.h" #include "packet-x411.h" #include "packet-cdt.h" #define CDT_UNDEFINED 0 #define CDT_EXTERNAL 1 #define CDT_P1 2 #define CDT_P3 3 #define CDT_P7 4 #define PNAME "Compressed Data Type" #define PSNAME "CDT" #define PFNAME "cdt" static proto_tree *top_tree = NULL; static proto_item *cdt_item = NULL; static guint32 content_type = 0; /* Initialize the protocol and registered fields */ int proto_cdt = -1; /*--- Included file: packet-cdt-hf.c ---*/ #line 1 "packet-cdt-hf.c" static int hf_cdt_CompressedData_PDU = -1; /* CompressedData */ static int hf_cdt_compressionAlgorithm = -1; /* CompressionAlgorithmIdentifier */ static int hf_cdt_compressedContentInfo = -1; /* CompressedContentInfo */ static int hf_cdt_algorithmID_ShortForm = -1; /* AlgorithmID_ShortForm */ static int hf_cdt_algorithmID_OID = -1; /* OBJECT_IDENTIFIER */ static int hf_cdt_contentType = -1; /* T_contentType */ static int hf_cdt_contentType_ShortForm = -1; /* ContentType_ShortForm */ static int hf_cdt_contentType_OID = -1; /* T_contentType_OID */ static int hf_cdt_compressedContent = -1; /* CompressedContent */ /*--- End of included file: packet-cdt-hf.c ---*/ #line 62 "packet-cdt-template.c" static dissector_handle_t data_handle = NULL; /* Initialize the subtree pointers */ /*--- Included file: packet-cdt-ett.c ---*/ #line 1 "packet-cdt-ett.c" static gint ett_cdt_CompressedData = -1; static gint ett_cdt_CompressionAlgorithmIdentifier = -1; static gint ett_cdt_CompressedContentInfo = -1; static gint ett_cdt_T_contentType = -1; /*--- End of included file: packet-cdt-ett.c ---*/ #line 67 "packet-cdt-template.c" /*--- Included file: packet-cdt-fn.c ---*/ #line 1 "packet-cdt-fn.c" static const value_string cdt_AlgorithmID_ShortForm_vals[] = { { 0, "zlibCompress" }, { 0, NULL } }; static int dissect_cdt_AlgorithmID_ShortForm(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) { #line 21 "cdt.cnf" guint32 value; offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index, &value); proto_item_append_text (cdt_item, ", %s", val_to_str (value, cdt_AlgorithmID_ShortForm_vals, "unknown")); if (check_col (actx->pinfo->cinfo, COL_INFO)) col_append_fstr (actx->pinfo->cinfo, COL_INFO, "%s ", val_to_str (value, cdt_AlgorithmID_ShortForm_vals, "unknown")); return offset; } static int dissect_cdt_OBJECT_IDENTIFIER(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) { offset = dissect_ber_object_identifier(implicit_tag, actx, tree, tvb, offset, hf_index, NULL); return offset; } static const value_string cdt_CompressionAlgorithmIdentifier_vals[] = { { 0, "algorithmID-ShortForm" }, { 1, "algorithmID-OID" }, { 0, NULL } }; static const ber_choice_t CompressionAlgorithmIdentifier_choice[] = { { 0, &hf_cdt_algorithmID_ShortForm, BER_CLASS_CON, 0, BER_FLAGS_IMPLTAG, dissect_cdt_AlgorithmID_ShortForm }, { 1, &hf_cdt_algorithmID_OID , BER_CLASS_CON, 1, BER_FLAGS_IMPLTAG, dissect_cdt_OBJECT_IDENTIFIER }, { 0, NULL, 0, 0, 0, NULL } }; static int dissect_cdt_CompressionAlgorithmIdentifier(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) { offset = dissect_ber_choice(actx, tree, tvb, offset, CompressionAlgorithmIdentifier_choice, hf_index, ett_cdt_CompressionAlgorithmIdentifier, NULL); return offset; } static const value_string cdt_ContentType_ShortForm_vals[] = { { 0, "unidentified" }, { 1, "external" }, { 2, "p1" }, { 3, "p3" }, { 4, "p7" }, { 0, NULL } }; static int dissect_cdt_ContentType_ShortForm(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) { #line 37 "cdt.cnf" offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index, &content_type); proto_item_append_text (cdt_item, ", %s", val_to_str (content_type, cdt_ContentType_ShortForm_vals, "unknown")); if (check_col (actx->pinfo->cinfo, COL_INFO)) col_append_fstr (actx->pinfo->cinfo, COL_INFO, "%s ", val_to_str (content_type, cdt_ContentType_ShortForm_vals, "unknown")); return offset; } static int dissect_cdt_T_contentType_OID(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) { #line 52 "cdt.cnf" const char *obj_id = NULL; offset = dissect_ber_object_identifier_str(implicit_tag, actx, tree, tvb, offset, hf_index, &obj_id); if (obj_id) { const char *name = oid_resolved_from_string (obj_id); if (!name) { name = obj_id; } proto_item_append_text (cdt_item, ", %s", name); if (check_col (actx->pinfo->cinfo, COL_INFO)) col_append_fstr (actx->pinfo->cinfo, COL_INFO, "%s ", name); } return offset; } static const value_string cdt_T_contentType_vals[] = { { 0, "contentType-ShortForm" }, { 1, "contentType-OID" }, { 0, NULL } }; static const ber_choice_t T_contentType_choice[] = { { 0, &hf_cdt_contentType_ShortForm, BER_CLASS_CON, 0, BER_FLAGS_IMPLTAG, dissect_cdt_ContentType_ShortForm }, { 1, &hf_cdt_contentType_OID , BER_CLASS_CON, 1, BER_FLAGS_IMPLTAG, dissect_cdt_T_contentType_OID }, { 0, NULL, 0, 0, 0, NULL } }; static int dissect_cdt_T_contentType(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) { offset = dissect_ber_choice(actx, tree, tvb, offset, T_contentType_choice, hf_index, ett_cdt_T_contentType, NULL); return offset; } static int dissect_cdt_CompressedContent(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) { #line 72 "cdt.cnf" tvbuff_t *next_tvb = NULL, *compr_tvb = NULL; proto_item *tf = NULL; int save_offset = offset; offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index, &compr_tvb); if (compr_tvb == NULL) { tf = proto_tree_add_text (top_tree, tvb, save_offset, -1, "[Error: Unable to get compressed content]"); expert_add_info_format (actx->pinfo, tf, PI_UNDECODED, PI_ERROR, "Unable to get compressed content"); if (check_col (actx->pinfo->cinfo, COL_INFO)) col_append_str (actx->pinfo->cinfo, COL_INFO, "[Error: Unable to get compressed content]"); return offset; } next_tvb = tvb_uncompress (compr_tvb, 0, tvb_length (compr_tvb)); if (next_tvb == NULL) { tf = proto_tree_add_text (top_tree, tvb, save_offset, -1, "[Error: Unable to uncompress content]"); expert_add_info_format (actx->pinfo, tf, PI_UNDECODED, PI_ERROR, "Unable to uncompress content"); if (check_col (actx->pinfo->cinfo, COL_INFO)) col_append_str (actx->pinfo->cinfo, COL_INFO, "[Error: Unable to uncompress content]"); return offset; } tvb_set_child_real_data_tvbuff (tvb, next_tvb); add_new_data_source (actx->pinfo, next_tvb, "Uncompressed Content"); switch (content_type) { case CDT_UNDEFINED: call_dissector (data_handle, next_tvb, actx->pinfo, top_tree); break; case CDT_EXTERNAL: dissect_unknown_ber (actx->pinfo, next_tvb, 0, top_tree); break; case CDT_P1: dissect_x411_mts_apdu (next_tvb, actx->pinfo, top_tree); break; default: call_dissector (data_handle, next_tvb, actx->pinfo, top_tree); break; } return offset; } static const ber_sequence_t CompressedContentInfo_sequence[] = { { &hf_cdt_contentType , BER_CLASS_ANY/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG|BER_FLAGS_NOTCHKTAG, dissect_cdt_T_contentType }, { &hf_cdt_compressedContent, BER_CLASS_CON, 0, 0, dissect_cdt_CompressedContent }, { NULL, 0, 0, 0, NULL } }; static int dissect_cdt_CompressedContentInfo(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) { offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset, CompressedContentInfo_sequence, hf_index, ett_cdt_CompressedContentInfo); return offset; } static const ber_sequence_t CompressedData_sequence[] = { { &hf_cdt_compressionAlgorithm, BER_CLASS_ANY/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG|BER_FLAGS_NOTCHKTAG, dissect_cdt_CompressionAlgorithmIdentifier }, { &hf_cdt_compressedContentInfo, BER_CLASS_UNI, BER_UNI_TAG_SEQUENCE, BER_FLAGS_NOOWNTAG, dissect_cdt_CompressedContentInfo }, { NULL, 0, 0, 0, NULL } }; int dissect_cdt_CompressedData(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) { #line 13 "cdt.cnf" content_type = 0; offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset, CompressedData_sequence, hf_index, ett_cdt_CompressedData); return offset; } /*--- PDUs ---*/ static void dissect_CompressedData_PDU(tvbuff_t *tvb _U_, packet_info *pinfo _U_, proto_tree *tree _U_) { asn1_ctx_t asn1_ctx; asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, TRUE, pinfo); dissect_cdt_CompressedData(FALSE, tvb, 0, &asn1_ctx, tree, hf_cdt_CompressedData_PDU); } /*--- End of included file: packet-cdt-fn.c ---*/ #line 69 "packet-cdt-template.c" /*--- proto_register_cdt -------------------------------------------*/ /* ** Dissect Compressed Data Type */ void dissect_cdt (tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree) { proto_tree *tree = NULL; /* save parent_tree so subdissectors can create new top nodes */ top_tree = parent_tree; if (parent_tree) { cdt_item = proto_tree_add_item (parent_tree, proto_cdt, tvb, 0, -1, FALSE); tree = proto_item_add_subtree (cdt_item, ett_cdt_CompressedData); } if (check_col (pinfo->cinfo, COL_PROTOCOL)) col_set_str (pinfo->cinfo, COL_PROTOCOL, "CDT"); if (check_col (pinfo->cinfo, COL_INFO)) col_clear (pinfo->cinfo, COL_INFO); dissect_CompressedData_PDU (tvb, pinfo, tree); } void proto_register_cdt (void) { /* List of fields */ static hf_register_info hf[] = { /*--- Included file: packet-cdt-hfarr.c ---*/ #line 1 "packet-cdt-hfarr.c" { &hf_cdt_CompressedData_PDU, { "CompressedData", "cdt.CompressedData", FT_NONE, BASE_NONE, NULL, 0, "cdt.CompressedData", HFILL }}, { &hf_cdt_compressionAlgorithm, { "compressionAlgorithm", "cdt.compressionAlgorithm", FT_UINT32, BASE_DEC, VALS(cdt_CompressionAlgorithmIdentifier_vals), 0, "cdt.CompressionAlgorithmIdentifier", HFILL }}, { &hf_cdt_compressedContentInfo, { "compressedContentInfo", "cdt.compressedContentInfo", FT_NONE, BASE_NONE, NULL, 0, "cdt.CompressedContentInfo", HFILL }}, { &hf_cdt_algorithmID_ShortForm, { "algorithmID-ShortForm", "cdt.algorithmID_ShortForm", FT_INT32, BASE_DEC, VALS(cdt_AlgorithmID_ShortForm_vals), 0, "cdt.AlgorithmID_ShortForm", HFILL }}, { &hf_cdt_algorithmID_OID, { "algorithmID-OID", "cdt.algorithmID_OID", FT_OID, BASE_NONE, NULL, 0, "cdt.OBJECT_IDENTIFIER", HFILL }}, { &hf_cdt_contentType, { "contentType", "cdt.contentType", FT_UINT32, BASE_DEC, VALS(cdt_T_contentType_vals), 0, "cdt.T_contentType", HFILL }}, { &hf_cdt_contentType_ShortForm, { "contentType-ShortForm", "cdt.contentType_ShortForm", FT_INT32, BASE_DEC, VALS(cdt_ContentType_ShortForm_vals), 0, "cdt.ContentType_ShortForm", HFILL }}, { &hf_cdt_contentType_OID, { "contentType-OID", "cdt.contentType_OID", FT_OID, BASE_NONE, NULL, 0, "cdt.T_contentType_OID", HFILL }}, { &hf_cdt_compressedContent, { "compressedContent", "cdt.compressedContent", FT_BYTES, BASE_HEX, NULL, 0, "cdt.CompressedContent", HFILL }}, /*--- End of included file: packet-cdt-hfarr.c ---*/ #line 101 "packet-cdt-template.c" }; /* List of subtrees */ static gint *ett[] = { /*--- Included file: packet-cdt-ettarr.c ---*/ #line 1 "packet-cdt-ettarr.c" &ett_cdt_CompressedData, &ett_cdt_CompressionAlgorithmIdentifier, &ett_cdt_CompressedContentInfo, &ett_cdt_T_contentType, /*--- End of included file: packet-cdt-ettarr.c ---*/ #line 106 "packet-cdt-template.c" }; /* Register protocol */ proto_cdt = proto_register_protocol (PNAME, PSNAME, PFNAME); /* Register fields and subtrees */ proto_register_field_array (proto_cdt, hf, array_length(hf)); proto_register_subtree_array (ett, array_length(ett)); } /*--- proto_reg_handoff_cdt ---------------------------------------*/ void proto_reg_handoff_cdt (void) { /*--- Included file: packet-cdt-dis-tab.c ---*/ #line 1 "packet-cdt-dis-tab.c" register_ber_oid_dissector("1.3.26.0.4406.0.4.2", dissect_CompressedData_PDU, proto_cdt, "cdt"); /*--- End of included file: packet-cdt-dis-tab.c ---*/ #line 121 "packet-cdt-template.c" data_handle = find_dissector ("data"); }