forked from osmocom/wireshark
132 lines
3.9 KiB
C
132 lines
3.9 KiB
C
/* packet-dcerpc-ndr.c
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* Routines for DCERPC NDR dissection
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* Copyright 2001, Todd Sabin <tas@webspan.net>
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*
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* $Id: packet-dcerpc-ndr.c,v 1.2 2001/12/06 23:30:35 guy Exp $
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@ethereal.com>
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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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#ifdef HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#include <string.h>
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#include <ctype.h>
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#include <glib.h>
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#include "packet.h"
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#include "packet-dcerpc.h"
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/*
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* The NDR routines are for use by dcerpc subdissetors. They're
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* primarily for making sure things are aligned properly according
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* to the rules of NDR.
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*/
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int
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dissect_ndr_uint8 (tvbuff_t *tvb, gint offset, packet_info *pinfo,
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proto_tree *tree, char *drep,
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int hfindex, guint8 *pdata)
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{
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/* no alignment needed */
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return dissect_dcerpc_uint8 (tvb, offset, pinfo,
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tree, drep, hfindex, pdata);
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}
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int
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dissect_ndr_uint16 (tvbuff_t *tvb, gint offset, packet_info *pinfo,
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proto_tree *tree, char *drep,
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int hfindex, guint16 *pdata)
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{
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if (offset % 2) {
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offset++;
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}
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return dissect_dcerpc_uint16 (tvb, offset, pinfo,
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tree, drep, hfindex, pdata);
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}
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int
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dissect_ndr_uint32 (tvbuff_t *tvb, gint offset, packet_info *pinfo,
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proto_tree *tree, char *drep,
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int hfindex, guint32 *pdata)
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{
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if (offset % 4) {
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offset += 4 - (offset % 4);
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}
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return dissect_dcerpc_uint32 (tvb, offset, pinfo,
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tree, drep, hfindex, pdata);
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}
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int
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dissect_ndr_uuid_t (tvbuff_t *tvb, gint offset, packet_info *pinfo,
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proto_tree *tree, char *drep,
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int hfindex, e_uuid_t *pdata)
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{
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e_uuid_t uuid;
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/* uuid's are aligned to 4 bytes, due to initial uint32 in struct */
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if (offset % 4) {
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offset += 4 - (offset % 4);
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}
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dcerpc_tvb_get_uuid (tvb, offset, drep, &uuid);
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if (tree) {
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proto_tree_add_string_format (tree, hfindex, tvb, offset, 16, "",
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"%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
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uuid.Data1, uuid.Data2, uuid.Data3,
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uuid.Data4[0], uuid.Data4[1],
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uuid.Data4[2], uuid.Data4[3],
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uuid.Data4[4], uuid.Data4[5],
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uuid.Data4[6], uuid.Data4[7]);
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}
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if (pdata) {
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*pdata = uuid;
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}
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return offset + 16;
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}
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int
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dissect_ndr_ctx_hnd (tvbuff_t *tvb, gint offset, packet_info *pinfo,
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proto_tree *tree, char *drep,
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int hfindex, e_ctx_hnd *pdata)
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{
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e_ctx_hnd ctx_hnd;
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if (offset % 4) {
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offset += 4 - (offset % 4);
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}
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ctx_hnd.Data1 = dcerpc_tvb_get_ntohl (tvb, offset, drep);
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dcerpc_tvb_get_uuid (tvb, offset+4, drep, &ctx_hnd.uuid);
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if (tree) {
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proto_tree_add_bytes (tree, hfindex, tvb, offset, 20,
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tvb_get_ptr (tvb, offset, 20));
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}
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if (pdata) {
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*pdata = ctx_hnd;
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}
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return offset + 20;
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}
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