forked from osmocom/wireshark
![Guy Harris](/assets/img/avatar_default.png)
representation. Use it rather than a raw 0x10. Add a DREP_ENC_INTEGER() macro that takes a pointer to the data representation and returns either ENC_LITTLE_ENDIAN or ENC_BIG_ENDIAN; use it for the encoding argument to proto_tree_add_item(), rather than just the AND of drep[0] and DREP_LITTLE_ENDIAN, as it's not a boolean any more, and for string values we'll be supporting character encodings as well and thus won't be able to trust that the 0x10 bit will mean "little endian". Use ENC_NA for some other encoding values, i.e. for FT_BYTES and the like. Fix a couple of places in the DCOM dissector where we were passing the byte-order bit rather than the field value to proto_tree_add_uint_format(). Clean up white space. svn path=/trunk/; revision=38128
510 lines
19 KiB
C
510 lines
19 KiB
C
/* packet-dcerpc.h
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* Copyright 2001, Todd Sabin <tas@webspan.net>
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* Copyright 2003, Tim Potter <tpot@samba.org>
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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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#ifndef __PACKET_DCERPC_H__
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#define __PACKET_DCERPC_H__
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#include <epan/conversation.h>
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/*
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* Data representation.
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*/
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#define DREP_LITTLE_ENDIAN 0x10
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/*
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* Data representation to integer byte order.
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*/
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#define DREP_ENC_INTEGER(drep) \
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(((drep)[0] & DREP_LITTLE_ENDIAN) ? ENC_LITTLE_ENDIAN : ENC_BIG_ENDIAN)
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#ifdef PT_R4
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/* now glib always includes signal.h and on linux PPC
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* signal.h defines PT_R4
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*/
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#undef PT_R4
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#endif
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typedef struct _e_uuid_t {
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guint32 Data1;
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guint16 Data2;
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guint16 Data3;
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guint8 Data4[8];
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} e_uuid_t;
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#define DCERPC_UUID_NULL { 0,0,0, {0,0,0,0,0,0,0,0} }
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/* %08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x */
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#define DCERPC_UUID_STR_LEN 36+1
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typedef struct _e_ctx_hnd {
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guint32 attributes;
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e_uuid_t uuid;
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} e_ctx_hnd;
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typedef struct _e_dce_cn_common_hdr_t {
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guint8 rpc_ver;
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guint8 rpc_ver_minor;
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guint8 ptype;
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guint8 flags;
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guint8 drep[4];
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guint16 frag_len;
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guint16 auth_len;
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guint32 call_id;
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} e_dce_cn_common_hdr_t;
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typedef struct _e_dce_dg_common_hdr_t {
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guint8 rpc_ver;
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guint8 ptype;
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guint8 flags1;
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guint8 flags2;
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guint8 drep[3];
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guint8 serial_hi;
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e_uuid_t obj_id;
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e_uuid_t if_id;
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e_uuid_t act_id;
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guint32 server_boot;
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guint32 if_ver;
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guint32 seqnum;
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guint16 opnum;
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guint16 ihint;
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guint16 ahint;
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guint16 frag_len;
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guint16 frag_num;
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guint8 auth_proto;
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guint8 serial_lo;
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} e_dce_dg_common_hdr_t;
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typedef struct _dcerpc_auth_info {
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guint8 auth_pad_len;
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guint8 auth_level;
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guint8 auth_type;
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guint32 auth_size;
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tvbuff_t *auth_data;
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} dcerpc_auth_info;
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#define PDU_REQ 0
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#define PDU_PING 1
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#define PDU_RESP 2
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#define PDU_FAULT 3
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#define PDU_WORKING 4
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#define PDU_NOCALL 5
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#define PDU_REJECT 6
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#define PDU_ACK 7
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#define PDU_CL_CANCEL 8
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#define PDU_FACK 9
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#define PDU_CANCEL_ACK 10
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#define PDU_BIND 11
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#define PDU_BIND_ACK 12
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#define PDU_BIND_NAK 13
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#define PDU_ALTER 14
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#define PDU_ALTER_ACK 15
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#define PDU_AUTH3 16
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#define PDU_SHUTDOWN 17
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#define PDU_CO_CANCEL 18
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#define PDU_ORPHANED 19
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#define PDU_RTS 20
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/*
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* helpers for packet-dcerpc.c and packet-dcerpc-ndr.c
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* If you're writing a subdissector, you almost certainly want the
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* NDR functions below.
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*/
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guint16 dcerpc_tvb_get_ntohs (tvbuff_t *tvb, gint offset, guint8 *drep);
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guint32 dcerpc_tvb_get_ntohl (tvbuff_t *tvb, gint offset, guint8 *drep);
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void dcerpc_tvb_get_uuid (tvbuff_t *tvb, gint offset, guint8 *drep, e_uuid_t *uuid);
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int dissect_dcerpc_uint8 (tvbuff_t *tvb, gint offset, packet_info *pinfo,
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proto_tree *tree, guint8 *drep,
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int hfindex, guint8 *pdata);
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int dissect_dcerpc_uint16 (tvbuff_t *tvb, gint offset, packet_info *pinfo,
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proto_tree *tree, guint8 *drep,
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int hfindex, guint16 *pdata);
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int dissect_dcerpc_uint32 (tvbuff_t *tvb, gint offset, packet_info *pinfo,
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proto_tree *tree, guint8 *drep,
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int hfindex, guint32 *pdata);
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int dissect_dcerpc_uint64 (tvbuff_t *tvb, gint offset, packet_info *pinfo,
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proto_tree *tree, guint8 *drep,
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int hfindex, guint64 *pdata);
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int dissect_dcerpc_float (tvbuff_t *tvb, gint offset, packet_info *pinfo,
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proto_tree *tree, guint8 *drep,
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int hfindex, gfloat *pdata);
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int dissect_dcerpc_double (tvbuff_t *tvb, gint offset, packet_info *pinfo,
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proto_tree *tree, guint8 *drep,
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int hfindex, gdouble *pdata);
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int dissect_dcerpc_time_t (tvbuff_t *tvb, gint offset, packet_info *pinfo,
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proto_tree *tree, guint8 *drep,
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int hfindex, guint32 *pdata);
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int dissect_dcerpc_uuid_t (tvbuff_t *tvb, gint offset, packet_info *pinfo,
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proto_tree *tree, guint8 *drep,
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int hfindex, e_uuid_t *pdata);
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/*
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* NDR routines for subdissectors.
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*/
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int dissect_ndr_uint8 (tvbuff_t *tvb, gint offset, packet_info *pinfo,
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proto_tree *tree, guint8 *drep,
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int hfindex, guint8 *pdata);
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int PIDL_dissect_uint8 (tvbuff_t *tvb, gint offset, packet_info *pinfo, proto_tree *tree, guint8 *drep, int hfindex, guint32 param);
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int dissect_ndr_uint16 (tvbuff_t *tvb, gint offset, packet_info *pinfo,
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proto_tree *tree, guint8 *drep,
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int hfindex, guint16 *pdata);
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int PIDL_dissect_uint16 (tvbuff_t *tvb, gint offset, packet_info *pinfo, proto_tree *tree, guint8 *drep, int hfindex, guint32 param);
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int dissect_ndr_uint32 (tvbuff_t *tvb, gint offset, packet_info *pinfo,
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proto_tree *tree, guint8 *drep,
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int hfindex, guint32 *pdata);
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int PIDL_dissect_uint32 (tvbuff_t *tvb, gint offset, packet_info *pinfo, proto_tree *tree, guint8 *drep, int hfindex, guint32 param);
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int dissect_ndr_duint32 (tvbuff_t *tvb, gint offset, packet_info *pinfo,
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proto_tree *tree, guint8 *drep,
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int hfindex, guint64 *pdata);
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int dissect_ndr_uint64 (tvbuff_t *tvb, gint offset, packet_info *pinfo,
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proto_tree *tree, guint8 *drep,
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int hfindex, guint64 *pdata);
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int PIDL_dissect_uint64 (tvbuff_t *tvb, gint offset, packet_info *pinfo, proto_tree *tree, guint8 *drep, int hfindex, guint32 param);
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int dissect_ndr_float (tvbuff_t *tvb, gint offset, packet_info *pinfo,
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proto_tree *tree, guint8 *drep,
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int hfindex, gfloat *pdata);
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int dissect_ndr_double (tvbuff_t *tvb, gint offset, packet_info *pinfo,
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proto_tree *tree, guint8 *drep,
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int hfindex, gdouble *pdata);
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int dissect_ndr_time_t (tvbuff_t *tvb, gint offset, packet_info *pinfo,
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proto_tree *tree, guint8 *drep,
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int hfindex, guint32 *pdata);
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int dissect_ndr_uuid_t (tvbuff_t *tvb, gint offset, packet_info *pinfo,
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proto_tree *tree, guint8 *drep,
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int hfindex, e_uuid_t *pdata);
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int dissect_ndr_ctx_hnd (tvbuff_t *tvb, gint offset, packet_info *pinfo,
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proto_tree *tree, guint8 *drep,
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int hfindex, e_ctx_hnd *pdata);
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#define FT_UINT1632 FT_UINT32
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typedef guint32 guint1632;
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int dissect_ndr_uint1632 (tvbuff_t *tvb, gint offset, packet_info *pinfo,
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proto_tree *tree, guint8 *drep,
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int hfindex, guint1632 *pdata);
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typedef guint64 guint3264;
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int dissect_ndr_uint3264 (tvbuff_t *tvb, gint offset, packet_info *pinfo,
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proto_tree *tree, guint8 *drep,
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int hfindex, guint3264 *pdata);
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typedef int (dcerpc_dissect_fnct_t)(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree, guint8 *drep);
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typedef void (dcerpc_callback_fnct_t)(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb, int start_offset, int end_offset, void *callback_args);
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#define NDR_POINTER_REF 1
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#define NDR_POINTER_UNIQUE 2
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#define NDR_POINTER_PTR 3
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int dissect_ndr_pointer_cb(tvbuff_t *tvb, gint offset, packet_info *pinfo,
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proto_tree *tree, guint8 *drep,
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dcerpc_dissect_fnct_t *fnct, int type, const char *text,
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int hf_index, dcerpc_callback_fnct_t *callback,
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void *callback_args);
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int dissect_ndr_pointer(tvbuff_t *tvb, gint offset, packet_info *pinfo,
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proto_tree *tree, guint8 *drep,
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dcerpc_dissect_fnct_t *fnct, int type, const char *text,
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int hf_index);
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int dissect_deferred_pointers(packet_info *pinfo, tvbuff_t *tvb, int offset, guint8 *drep);
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int dissect_ndr_embedded_pointer(tvbuff_t *tvb, gint offset, packet_info *pinfo,
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proto_tree *tree, guint8 *drep,
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dcerpc_dissect_fnct_t *fnct, int type, const char *text,
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int hf_index);
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int dissect_ndr_toplevel_pointer(tvbuff_t *tvb, gint offset, packet_info *pinfo,
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proto_tree *tree, guint8 *drep,
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dcerpc_dissect_fnct_t *fnct, int type, const char *text,
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int hf_index);
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/* dissect a NDR unidimensional conformant array */
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int dissect_ndr_ucarray(tvbuff_t *tvb, gint offset, packet_info *pinfo,
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proto_tree *tree, guint8 *drep,
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dcerpc_dissect_fnct_t *fnct);
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/* dissect a NDR unidimensional conformant and varying array */
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int dissect_ndr_ucvarray(tvbuff_t *tvb, gint offset, packet_info *pinfo,
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proto_tree *tree, guint8 *drep,
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dcerpc_dissect_fnct_t *fnct);
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/* dissect a NDR unidimensional varying array */
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int dissect_ndr_uvarray(tvbuff_t *tvb, gint offset, packet_info *pinfo,
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proto_tree *tree, guint8 *drep,
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dcerpc_dissect_fnct_t *fnct);
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int dissect_ndr_byte_array(tvbuff_t *tvb, int offset, packet_info *pinfo,
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proto_tree *tree, guint8 *drep);
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int dissect_ndr_cvstring(tvbuff_t *tvb, int offset, packet_info *pinfo,
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proto_tree *tree, guint8 *drep, int size_is,
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int hfinfo, gboolean add_subtree,
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char **data);
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int dissect_ndr_char_cvstring(tvbuff_t *tvb, int offset, packet_info *pinfo,
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proto_tree *tree, guint8 *drep);
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int dissect_ndr_wchar_cvstring(tvbuff_t *tvb, int offset, packet_info *pinfo,
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proto_tree *tree, guint8 *drep);
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int PIDL_dissect_cvstring(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree, guint8 *drep, int chsize, int hfindex, guint32 param);
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int dissect_ndr_vstring(tvbuff_t *tvb, int offset, packet_info *pinfo,
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proto_tree *tree, guint8 *drep, int size_is,
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int hfinfo, gboolean add_subtree,
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char **data);
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int dissect_ndr_char_vstring(tvbuff_t *tvb, int offset, packet_info *pinfo,
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proto_tree *tree, guint8 *drep);
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int dissect_ndr_wchar_vstring(tvbuff_t *tvb, int offset, packet_info *pinfo,
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proto_tree *tree, guint8 *drep);
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typedef struct _dcerpc_sub_dissector {
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guint16 num;
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const gchar *name;
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dcerpc_dissect_fnct_t *dissect_rqst;
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dcerpc_dissect_fnct_t *dissect_resp;
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} dcerpc_sub_dissector;
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/* registration function for subdissectors */
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void dcerpc_init_uuid (int proto, int ett, e_uuid_t *uuid, guint16 ver, dcerpc_sub_dissector *procs, int opnum_hf);
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const char *dcerpc_get_proto_name(e_uuid_t *uuid, guint16 ver);
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int dcerpc_get_proto_hf_opnum(e_uuid_t *uuid, guint16 ver);
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dcerpc_sub_dissector *dcerpc_get_proto_sub_dissector(e_uuid_t *uuid, guint16 ver);
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/* Create a opnum, name value_string from a subdissector list */
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value_string *value_string_from_subdissectors(dcerpc_sub_dissector *sd);
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/* Private data passed to subdissectors from the main DCERPC dissector.
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* One unique instance of this structure is created for each
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* DCERPC request/response transaction when we see the initial request
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* of the transaction.
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* These instances are persistent and will remain available until the
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* capture file is closed and a new one is read.
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*
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* For transactions where we never saw the request (missing from the trace)
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* the dcerpc runtime will create a temporary "fake" such structure to pass
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* to the response dissector. These fake structures are not persistent
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* and can not be used to keep data hanging around.
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*/
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typedef struct _dcerpc_call_value {
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e_uuid_t uuid; /* interface UUID */
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guint16 ver; /* interface version */
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e_uuid_t object_uuid; /* optional object UUID (or DCERPC_UUID_NULL) */
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guint16 opnum;
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guint32 req_frame;
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nstime_t req_time;
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guint32 rep_frame;
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guint32 max_ptr;
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void *se_data; /* This holds any data with se allocation scope
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* that we might want to keep
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* for this request/response transaction.
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* The pointer is initialized to NULL and must be
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* checked before being dereferenced.
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* This is useful for such things as when we
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* need to pass persistent data from the request
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* to the reply, such as LSA/OpenPolicy2() that
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* uses this to pass the domain name from the
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* request to the reply.
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*/
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void *private_data; /* XXX This will later be renamed as ep_data */
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e_ctx_hnd *pol; /* policy handle tracked between request/response*/
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#define DCERPC_IS_NDR64 0x00000001
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guint32 flags; /* flags for this transaction */
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} dcerpc_call_value;
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typedef struct _dcerpc_info {
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conversation_t *conv; /* Which TCP stream we are in */
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guint32 call_id; /* Context id for this call */
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guint16 smb_fid; /* FID for DCERPC over SMB */
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guint8 ptype; /* packet type: PDU_REQ, PDU_RESP, ... */
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gboolean conformant_run;
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gboolean no_align; /* are data aligned? (default yes) */
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gint32 conformant_eaten; /* how many bytes did the conformant run eat?*/
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guint32 array_max_count; /* max_count for conformant arrays */
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guint32 array_max_count_offset;
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guint32 array_offset;
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guint32 array_offset_offset;
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guint32 array_actual_count;
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guint32 array_actual_count_offset;
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int hf_index;
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dcerpc_call_value *call_data;
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void *private_data;
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} dcerpc_info;
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/* the init_protocol hooks. With MSVC and a
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* libwireshark.dll, we need a special declaration.
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*/
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WS_VAR_IMPORT GHookList dcerpc_hooks_init_protos;
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/* the registered subdissectors. With MSVC and a
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* libwireshark.dll, we need a special declaration.
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*/
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WS_VAR_IMPORT GHashTable *dcerpc_uuids;
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typedef struct _dcerpc_uuid_key {
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e_uuid_t uuid;
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guint16 ver;
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} dcerpc_uuid_key;
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typedef struct _dcerpc_uuid_value {
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protocol_t *proto;
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int proto_id;
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int ett;
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const gchar *name;
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dcerpc_sub_dissector *procs;
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int opnum_hf;
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} dcerpc_uuid_value;
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/* Authenticated pipe registration functions and miscellanea */
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typedef tvbuff_t *(dcerpc_decode_data_fnct_t)(tvbuff_t *data_tvb,
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tvbuff_t *auth_tvb,
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int offset,
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packet_info *pinfo,
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dcerpc_auth_info *auth_info);
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typedef struct _dcerpc_auth_subdissector_fns {
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/* Dissect credentials and verifiers */
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dcerpc_dissect_fnct_t *bind_fn;
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dcerpc_dissect_fnct_t *bind_ack_fn;
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dcerpc_dissect_fnct_t *auth3_fn;
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dcerpc_dissect_fnct_t *req_verf_fn;
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dcerpc_dissect_fnct_t *resp_verf_fn;
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/* Decrypt encrypted requests/response PDUs */
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|
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dcerpc_decode_data_fnct_t *req_data_fn;
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dcerpc_decode_data_fnct_t *resp_data_fn;
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} dcerpc_auth_subdissector_fns;
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void register_dcerpc_auth_subdissector(guint8 auth_level, guint8 auth_type,
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dcerpc_auth_subdissector_fns *fns);
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/* all values needed to (re-)build a dcerpc binding */
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typedef struct decode_dcerpc_bind_values_s {
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/* values of a typical conversation */
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address addr_a;
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address addr_b;
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port_type ptype;
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guint32 port_a;
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guint32 port_b;
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/* dcerpc conversation specific */
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|
guint16 ctx_id;
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|
guint16 smb_fid;
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|
/* corresponding "interface" */
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|
GString *ifname;
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|
e_uuid_t uuid;
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|
guint16 ver;
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|
} decode_dcerpc_bind_values_t;
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|
|
|
/* Helper for "decode as" dialog to set up a UUID/conversation binding. */
|
|
struct _dcerpc_bind_value *
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|
dcerpc_add_conv_to_bind_table(decode_dcerpc_bind_values_t *binding);
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|
|
|
guint16
|
|
dcerpc_get_transport_salt (packet_info *pinfo);
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|
|
|
/* Authentication services */
|
|
|
|
/*
|
|
* For MS-specific SSPs (Security Service Provider), see
|
|
*
|
|
* http://msdn.microsoft.com/library/en-us/rpc/rpc/authentication_level_constants.asp
|
|
*/
|
|
|
|
#define DCE_C_RPC_AUTHN_PROTOCOL_NONE 0
|
|
#define DCE_C_RPC_AUTHN_PROTOCOL_KRB5 1
|
|
#define DCE_C_RPC_AUTHN_PROTOCOL_SPNEGO 9
|
|
#define DCE_C_RPC_AUTHN_PROTOCOL_NTLMSSP 10
|
|
#define DCE_C_RPC_AUTHN_PROTOCOL_GSS_SCHANNEL 14
|
|
#define DCE_C_RPC_AUTHN_PROTOCOL_GSS_KERBEROS 16
|
|
#define DCE_C_RPC_AUTHN_PROTOCOL_DPA 17
|
|
#define DCE_C_RPC_AUTHN_PROTOCOL_MSN 18
|
|
#define DCE_C_RPC_AUTHN_PROTOCOL_DIGEST 21
|
|
#define DCE_C_RPC_AUTHN_PROTOCOL_SEC_CHAN 68
|
|
#define DCE_C_RPC_AUTHN_PROTOCOL_MQ 100
|
|
|
|
/* Protection levels */
|
|
|
|
#define DCE_C_AUTHN_LEVEL_NONE 1
|
|
#define DCE_C_AUTHN_LEVEL_CONNECT 2
|
|
#define DCE_C_AUTHN_LEVEL_CALL 3
|
|
#define DCE_C_AUTHN_LEVEL_PKT 4
|
|
#define DCE_C_AUTHN_LEVEL_PKT_INTEGRITY 5
|
|
#define DCE_C_AUTHN_LEVEL_PKT_PRIVACY 6
|
|
|
|
void
|
|
init_ndr_pointer_list(packet_info *pinfo);
|
|
|
|
|
|
|
|
/* These defines are used in the PIDL conformance files when using
|
|
* the PARAM_VALUE directive.
|
|
*/
|
|
/* Policy handle tracking. Describes in which function a handle is
|
|
* opened/closed. See "winreg.cnf" for example.
|
|
*
|
|
* The guint32 param is divided up into multiple fields
|
|
*
|
|
* +--------+--------+--------+--------+
|
|
* | Flags | Type | | |
|
|
* +--------+--------+--------+--------+
|
|
*/
|
|
/* Flags : */
|
|
#define PIDL_POLHND_OPEN 0x80000000
|
|
#define PIDL_POLHND_CLOSE 0x40000000
|
|
/* To "save" a pointer to the string in dcv->private_data */
|
|
#define PIDL_STR_SAVE 0x20000000
|
|
/* To make this value appear on the summary line for the packet */
|
|
#define PIDL_SET_COL_INFO 0x10000000
|
|
|
|
/* Type */
|
|
#define PIDL_POLHND_TYPE_MASK 0x00ff0000
|
|
#define PIDL_POLHND_TYPE_SAMR_USER 0x00010000
|
|
#define PIDL_POLHND_TYPE_SAMR_CONNECT 0x00020000
|
|
#define PIDL_POLHND_TYPE_SAMR_DOMAIN 0x00030000
|
|
#define PIDL_POLHND_TYPE_SAMR_GROUP 0x00040000
|
|
#define PIDL_POLHND_TYPE_SAMR_ALIAS 0x00050000
|
|
|
|
#define PIDL_POLHND_TYPE_LSA_POLICY 0x00060000
|
|
#define PIDL_POLHND_TYPE_LSA_ACCOUNT 0x00070000
|
|
#define PIDL_POLHND_TYPE_LSA_SECRET 0x00080000
|
|
#define PIDL_POLHND_TYPE_LSA_DOMAIN 0x00090000
|
|
|
|
/* a structure we store for all policy handles we track */
|
|
typedef struct pol_value {
|
|
struct pol_value *next; /* Next entry in hash bucket */
|
|
guint32 open_frame, close_frame; /* Frame numbers for open/close */
|
|
guint32 first_frame; /* First frame in which this instance was seen */
|
|
guint32 last_frame; /* Last frame in which this instance was seen */
|
|
char *name; /* Name of policy handle */
|
|
guint32 type; /* policy handle type */
|
|
} pol_value;
|
|
|
|
|
|
extern int hf_dcerpc_drep_byteorder;
|
|
|
|
#endif /* packet-dcerpc.h */
|