forked from osmocom/wireshark
313 lines
9.9 KiB
C
313 lines
9.9 KiB
C
/* packet-dop.c
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* Routines for X.501 (DSA Operational Attributes) packet dissection
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* Graeme Lunt 2005
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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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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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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 <epan/conversation.h>
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#include <stdio.h>
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#include <string.h>
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#include "packet-ber.h"
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#include "packet-acse.h"
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#include "packet-ros.h"
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#include "packet-x509sat.h"
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#include "packet-x509af.h"
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#include "packet-x509if.h"
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#include "packet-dap.h"
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#include "packet-dsp.h"
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#include "packet-crmf.h"
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#include "packet-dop.h"
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#define PNAME "X.501 Directory Operational Binding Management Protocol"
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#define PSNAME "DOP"
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#define PFNAME "dop"
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static guint global_dop_tcp_port = 102;
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static guint tcp_port = 0;
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static dissector_handle_t tpkt_handle = NULL;
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void prefs_register_dop(void); /* forwad declaration for use in preferences registration */
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/* Initialize the protocol and registered fields */
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int proto_dop = -1;
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static struct SESSION_DATA_STRUCTURE* session = NULL;
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static const char *binding_type = NULL; /* binding_type */
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static int call_dop_oid_callback(char *base_oid, tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree, char *col_info);
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#include "packet-dop-hf.c"
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/* Initialize the subtree pointers */
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static gint ett_dop = -1;
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#include "packet-dop-ett.c"
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#include "packet-dop-fn.c"
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static int
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call_dop_oid_callback(char *base_oid, tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree, char *col_info)
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{
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char binding_param[BER_MAX_OID_STR_LEN];
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g_snprintf(binding_param, BER_MAX_OID_STR_LEN, "%s.%s", base_oid, binding_type ? binding_type : "");
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if (col_info && (check_col(pinfo->cinfo, COL_INFO)))
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col_append_fstr(pinfo->cinfo, COL_INFO, " %s", col_info);
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return call_ber_oid_callback(binding_param, tvb, offset, pinfo, tree);
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}
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/*
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* Dissect DOP PDUs inside a ROS PDUs
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*/
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static void
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dissect_dop(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree)
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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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int (*dop_dissector)(gboolean implicit_tag _U_, tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree, int hf_index _U_) = NULL;
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char *dop_op_name;
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/* do we have operation information from the ROS dissector? */
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if( !pinfo->private_data ){
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if(parent_tree){
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proto_tree_add_text(parent_tree, tvb, offset, -1,
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"Internal error: can't get operation information from ROS dissector.");
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}
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return ;
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} else {
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session = ( (struct SESSION_DATA_STRUCTURE*)(pinfo->private_data) );
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}
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if(parent_tree){
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item = proto_tree_add_item(parent_tree, proto_dop, tvb, 0, -1, FALSE);
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tree = proto_item_add_subtree(item, ett_dop);
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}
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if (check_col(pinfo->cinfo, COL_PROTOCOL))
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "DOP");
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if (check_col(pinfo->cinfo, COL_INFO))
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col_clear(pinfo->cinfo, COL_INFO);
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switch(session->ros_op & ROS_OP_MASK) {
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case (ROS_OP_BIND | ROS_OP_ARGUMENT): /* BindInvoke */
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dop_dissector = dissect_dop_DSAOperationalManagementBindArgument;
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dop_op_name = "DSA-Operational-Bind-Argument";
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break;
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case (ROS_OP_BIND | ROS_OP_RESULT): /* BindResult */
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dop_dissector = dissect_dop_DSAOperationalManagementBindResult;
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dop_op_name = "DSA-Operational-Bind-Result";
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break;
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case (ROS_OP_BIND | ROS_OP_ERROR): /* BindError */
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dop_dissector = dissect_dop_DSAOperationalManagementBindError;
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dop_op_name = "DSA-Operational-Management-Bind-Error";
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break;
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case (ROS_OP_INVOKE | ROS_OP_ARGUMENT): /* Invoke Argument */
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switch(session->ros_op & ROS_OP_OPCODE_MASK) {
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case 100: /* establish */
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dop_dissector = dissect_dop_EstablishOperationalBindingArgument;
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dop_op_name = "Establish-Operational-Binding-Argument";
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break;
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case 101: /* terminate */
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dop_dissector = dissect_dop_TerminateOperationalBindingArgument;
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dop_op_name = "Terminate-Operational-Binding-Argument";
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break;
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case 102: /* modify */
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dop_dissector = dissect_dop_ModifyOperationalBindingArgument;
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dop_op_name = "Modify-Operational-Binding-Argument";
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break;
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default:
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proto_tree_add_text(tree, tvb, offset, -1,"Unsupported DOP Argument opcode (%d)",
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session->ros_op & ROS_OP_OPCODE_MASK);
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break;
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}
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break;
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case (ROS_OP_INVOKE | ROS_OP_RESULT): /* Return Result */
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switch(session->ros_op & ROS_OP_OPCODE_MASK) {
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case 100: /* establish */
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dop_dissector = dissect_dop_EstablishOperationalBindingResult;
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dop_op_name = "Establish-Operational-Binding-Result";
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break;
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case 101: /* terminate */
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dop_dissector = dissect_dop_TerminateOperationalBindingResult;
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dop_op_name = "Terminate-Operational-Binding-Result";
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break;
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case 102: /* modify */
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dop_dissector = dissect_dop_ModifyOperationalBindingResult;
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dop_op_name = "Modify-Operational-Binding-Result";
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break;
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default:
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proto_tree_add_text(tree, tvb, offset, -1,"Unsupported DOP Result opcode (%d)",
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session->ros_op & ROS_OP_OPCODE_MASK);
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break;
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}
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break;
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case (ROS_OP_INVOKE | ROS_OP_ERROR): /* Return Error */
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switch(session->ros_op & ROS_OP_OPCODE_MASK) {
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case 100: /* operational-binding */
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dop_dissector = dissect_dop_OpBindingErrorParam;
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dop_op_name = "Operational-Binding-Error";
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break;
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default:
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proto_tree_add_text(tree, tvb, offset, -1,"Unsupported DOP Error opcode (%d)",
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session->ros_op & ROS_OP_OPCODE_MASK);
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break;
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}
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break;
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default:
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proto_tree_add_text(tree, tvb, offset, -1,"Unsupported DOP PDU");
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return;
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}
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if(dop_dissector) {
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if (check_col(pinfo->cinfo, COL_INFO))
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col_add_str(pinfo->cinfo, COL_INFO, dop_op_name);
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while (tvb_reported_length_remaining(tvb, offset) > 0){
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old_offset=offset;
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offset=(*dop_dissector)(FALSE, tvb, offset, pinfo , tree, -1);
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if(offset == old_offset){
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proto_tree_add_text(tree, tvb, offset, -1,"Internal error, zero-byte DOP PDU");
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offset = tvb_length(tvb);
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break;
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}
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}
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}
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}
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/*--- proto_register_dop -------------------------------------------*/
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void proto_register_dop(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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#include "packet-dop-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_dop,
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#include "packet-dop-ettarr.c"
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};
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module_t *dop_module;
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/* Register protocol */
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proto_dop = proto_register_protocol(PNAME, PSNAME, PFNAME);
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register_dissector("dop", dissect_dop, proto_dop);
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/* Register fields and subtrees */
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proto_register_field_array(proto_dop, hf, array_length(hf));
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proto_register_subtree_array(ett, array_length(ett));
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/* Register our configuration options for DOP, particularly our port */
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#ifdef PREFERENCE_GROUPING
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dop_module = prefs_register_protocol_subtree("OSI/X.500", proto_dop, prefs_register_dop);
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#else
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dop_module = prefs_register_protocol(proto_dop, prefs_register_dop);
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#endif
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prefs_register_uint_preference(dop_module, "tcp.port", "DOP TCP Port",
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"Set the port for DOP operations (if other"
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" than the default of 102)",
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10, &global_dop_tcp_port);
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}
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/*--- proto_reg_handoff_dop --- */
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void proto_reg_handoff_dop(void) {
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dissector_handle_t handle = NULL;
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#include "packet-dop-dis-tab.c"
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/* APPLICATION CONTEXT */
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register_ber_oid_name("2.5.3.3", "id-ac-directory-operational-binding-management");
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/* ABSTRACT SYNTAXES */
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/* Register DOP with ROS (with no use of RTSE) */
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if((handle = find_dissector("dop"))) {
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register_ros_oid_dissector_handle("2.5.9.4", handle, 0, "id-as-directory-operational-binding-management", FALSE);
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}
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/* BINDING TYPES */
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register_ber_oid_name("2.5.19.1", "shadow-agreement");
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register_ber_oid_name("2.5.19.2", "hierarchical-agreement");
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register_ber_oid_name("2.5.19.3", "non-specific-hierarchical-agreement");
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/* ACCESS CONTROL SCHEMES */
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register_ber_oid_name("2.5.28.1", "basic-ACS");
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register_ber_oid_name("2.5.28.2", "simplified-ACS");
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register_ber_oid_name("2.5.28.3", "ruleBased-ACS");
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register_ber_oid_name("2.5.28.4", "ruleAndBasic-ACS");
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register_ber_oid_name("2.5.28.5", "ruleAndSimple-ACS");
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/* ADMINISTRATIVE ROLES */
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register_ber_oid_name("2.5.23.1", "id-ar-autonomousArea");
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register_ber_oid_name("2.5.23.2", "id-ar-accessControlSpecificArea");
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register_ber_oid_name("2.5.23.3", "id-ar-accessControlInnerArea");
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register_ber_oid_name("2.5.23.4", "id-ar-subschemaAdminSpecificArea");
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register_ber_oid_name("2.5.23.5", "id-ar-collectiveAttributeSpecificArea");
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register_ber_oid_name("2.5.23.6", "id-ar-collectiveAttributeInnerArea");
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register_ber_oid_name("2.5.23.7", "id-ar-contextDefaultSpecificArea");
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register_ber_oid_name("2.5.23.8", "id-ar-serviceSpecificArea");
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/* remember the tpkt handler for change in preferences */
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tpkt_handle = find_dissector("tpkt");
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}
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void prefs_register_dop(void) {
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/* de-register the old port */
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/* port 102 is registered by TPKT - don't undo this! */
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if((tcp_port != 102) && tpkt_handle)
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dissector_delete("tcp.port", tcp_port, tpkt_handle);
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/* Set our port number for future use */
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tcp_port = global_dop_tcp_port;
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if((tcp_port > 0) && (tcp_port != 102) && tpkt_handle)
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dissector_add("tcp.port", global_dop_tcp_port, tpkt_handle);
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}
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