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|
/* packet-dcerpc-frsrpc.c
* Routines for the frs (File Replication Service) MSRPC interface
* Copyright 2004 Jean-Baptiste Marchand <jbm@hsc.fr>
*
* $Id$
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <glib.h>
#include <epan/packet.h>
#include "packet-dcerpc.h"
#include "packet-dcerpc-frsrpc.h"
#include "packet-smb-common.h"
#include "packet-windows-common.h"
static int proto_dcerpc_frsrpc = -1;
static int hf_frsrpc_opnum = -1;
static int hf_frsrpc_tlvsize = -1;
static int hf_frsrpc_tlv = -1;
static int hf_frsrpc_tlv_item = -1;
static int hf_frsrpc_tlv_tag = -1;
static int hf_frsrpc_tlv_size = -1;
static int hf_frsrpc_tlv_data = -1;
static int hf_frsrpc_unknown32 = -1;
static int hf_frsrpc_unknownbytes = -1;
static int hf_frsrpc_guid_size = -1;
static int hf_frsrpc_ssrv_guid = -1;
static int hf_frsrpc_dsrv_guid = -1;
static int hf_frsrpc_str_size = -1;
static int hf_frsrpc_ssrv = -1;
static int hf_frsrpc_dsrv = -1;
static int hf_frsrpc_timestamp = -1;
static gint ett_dcerpc_frsrpc = -1;
static gint ett_frsrpc_tlv = -1;
static gint ett_frsrpc_tlv_item = -1;
/*
IDL [ uuid(f5cc59b4-4264-101a-8c59-08002b2f8426),
IDL version(1.1),
IDL implicit_handle(handle_t rpc_binding)
IDL ] interface frsrpc
*/
static e_uuid_t uuid_dcerpc_frsrpc = {
0xf5cc59b4, 0x4264, 0x101a,
{ 0x8c, 0x59, 0x08, 0x00, 0x2b, 0x2f, 0x84, 0x26 }
};
static guint16 ver_dcerpc_frsrpc = 1;
#define TLV_SSRV 3
#define TLV_DSRV 4
#define TLV_TS 18
static const value_string tag_vals[] = {
{TLV_SSRV, "SOURCE SERVER"},
{TLV_DSRV, "DESTINATION SERVER"},
{TLV_TS, "TIMESTAMP"},
{0,NULL}
};
static void
dissect_tlv_ssrv(packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb, guint8 *drep)
{
int offset = 0;
const char *dn;
int dn_len;
guint16 bc;
/* a GUID */
proto_tree_add_item(tree, hf_frsrpc_guid_size, tvb, offset, 4, TRUE);
offset+=4;
offset=dissect_ndr_uuid_t(tvb, offset, pinfo, tree, drep, hf_frsrpc_ssrv_guid, NULL);
/* the name of the source server sending this */
proto_tree_add_item(tree, hf_frsrpc_str_size, tvb, offset, 4, TRUE);
dn_len = tvb_get_ntohl(tvb, offset);
offset+=4;
bc = tvb_length_remaining(tvb, offset);
dn = get_unicode_or_ascii_string(tvb, &offset, TRUE, &dn_len, TRUE, TRUE, &bc);
proto_tree_add_string(tree, hf_frsrpc_ssrv, tvb, offset, dn_len, dn);
}
static void
dissect_tlv_dsrv(packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb, guint8 *drep)
{
int offset = 0;
const char *dn;
int dn_len;
guint16 bc;
/* a GUID */
proto_tree_add_item(tree, hf_frsrpc_guid_size, tvb, offset, 4, TRUE);
offset+=4;
offset=dissect_ndr_uuid_t(tvb, offset, pinfo, tree, drep, hf_frsrpc_dsrv_guid, NULL);
/* the name of the source server sending this */
proto_tree_add_item(tree, hf_frsrpc_str_size, tvb, offset, 4, TRUE);
dn_len = tvb_get_ntohl(tvb, offset);
offset+=4;
bc = tvb_length_remaining(tvb, offset);
dn = get_unicode_or_ascii_string(tvb, &offset, TRUE, &dn_len, TRUE, TRUE, &bc);
proto_tree_add_string(tree, hf_frsrpc_dsrv, tvb, offset, dn_len, dn);
}
static void
dissect_tlv_ts(packet_info *pinfo _U_, proto_tree *tree, tvbuff_t *tvb, guint8 *drep _U_)
{
dissect_nt_64bit_time(tvb, tree, 0, hf_frsrpc_timestamp);
}
static void
dissect_TLV_blob(packet_info *pinfo, proto_tree *parent_tree, tvbuff_t *tvb, guint8 *drep)
{
proto_item *item = NULL;
proto_tree *tree = NULL;
proto_item *tlv_item = NULL;
proto_tree *tlv_tree = NULL;
unsigned int offset = 0;
guint16 tag;
guint32 size;
item = proto_tree_add_item(parent_tree, hf_frsrpc_tlv, tvb, offset, -1, TRUE);
tree = proto_item_add_subtree(item, ett_frsrpc_tlv);
while (offset < tvb_length(tvb)) {
unsigned int old_offset = offset;
tvbuff_t *next_tvb;
tlv_item = proto_tree_add_item(tree, hf_frsrpc_tlv_item, tvb, offset, -1, TRUE);
tlv_tree = proto_item_add_subtree(tlv_item, ett_frsrpc_tlv_item);
tag = tvb_get_letohs(tvb, offset);
proto_tree_add_item(tlv_tree, hf_frsrpc_tlv_tag, tvb, offset, 2, TRUE);
offset+=2;
proto_item_append_text(tlv_item, " %s", val_to_str(tag, tag_vals, "UNKNOWN TAG:0x%x"));
size = tvb_get_letohl(tvb, offset);
proto_tree_add_item(tlv_tree, hf_frsrpc_tlv_size, tvb, offset, 2, TRUE);
offset+=4;
next_tvb = tvb_new_subset(tvb, offset, size, size);
switch (tag) {
case TLV_SSRV:
dissect_tlv_ssrv(pinfo, tlv_tree, next_tvb, drep);
break;
case TLV_DSRV:
dissect_tlv_dsrv(pinfo, tlv_tree, next_tvb, drep);
break;
case TLV_TS:
dissect_tlv_ts(pinfo, tlv_tree, next_tvb, drep);
break;
default:
proto_tree_add_item(tlv_tree, hf_frsrpc_tlv_data, next_tvb, 0, size, TRUE);
}
offset+=size;
proto_item_set_len(tlv_item, offset-old_offset);
}
}
static int
frsrpc_dissect_SendCommPkt_request(tvbuff_t *tvb _U_, int offset _U_, packet_info *pinfo _U_, proto_tree *tree _U_, guint8 *drep _U_)
{
tvbuff_t *next_tvb;
guint32 tlvsize;
dcerpc_info *di;
di=pinfo->private_data;
pinfo->dcerpc_procedure_name="SendCommPkt";
if(di->conformant_run){
/* just a run to handle conformant arrays, no scalars to dissect */
return offset;
}
/* 16 unknown bytes */
proto_tree_add_item(tree, hf_frsrpc_unknownbytes, tvb, offset, 16, TRUE);
offset+=16;
offset = PIDL_dissect_uint32(tvb, offset, pinfo, tree, drep, hf_frsrpc_tlvsize, 0);
/* 16 unknown bytes */
proto_tree_add_item(tree, hf_frsrpc_unknownbytes, tvb, offset, 16, TRUE);
offset+=16;
/* this is a subcontext that starts with the length of the data in bytes
followed by concatenated TLV values.
this is NOT ndr encoded
*/
offset = dissect_dcerpc_uint32 (tvb, offset, pinfo, tree, drep, hf_frsrpc_tlvsize, &tlvsize);
next_tvb = tvb_new_subset(tvb, offset, tlvsize, tlvsize);
dissect_TLV_blob(pinfo, tree, next_tvb, drep);
offset+=tlvsize;
proto_tree_add_item(tree, hf_frsrpc_unknownbytes, tvb, offset, -1, TRUE);
offset += tvb_length_remaining(tvb, offset);
return offset;
}
static dcerpc_sub_dissector dcerpc_frsrpc_dissectors[] = {
{ FRSRPC_SEND_COMM_PKT, "FrsRpcSendCommPkt",
frsrpc_dissect_SendCommPkt_request, NULL },
{ FRSRPC_VERIFY_PROMOTION_PARENT, "FrsRpcVerifyPromotionParent",
NULL, NULL },
{ FRSRPC_START_PROMOTION_PARENT, "FrsRpcStartPromotionParent",
NULL, NULL },
{ FRSRPC_NOP, "FrsRpcNop", NULL, NULL },
/* operations 4 to 9 are apparently identical */
{ FRSRPC_BACKUP_COMPLETE, "FrsRpcBackupComplete", NULL, NULL },
{ FRSRPC_BACKUP_COMPLETE_5, "FrsRpcBackupComplete", NULL, NULL },
{ FRSRPC_BACKUP_COMPLETE_6, "FrsRpcBackupComplete", NULL, NULL },
{ FRSRPC_BACKUP_COMPLETE_7, "FrsRpcBackupComplete", NULL, NULL },
{ FRSRPC_BACKUP_COMPLETE_8, "FrsRpcBackupComplete", NULL, NULL },
{ FRSRPC_BACKUP_COMPLETE_9, "FrsRpcBackupComplete", NULL, NULL },
{ FRSRPC_VERIFY_PROMOTION_PARENT_EX, "FrsRpcVerifyPromotionParentEx",
NULL, NULL },
{ 0, NULL, NULL, NULL }
};
void
proto_register_dcerpc_frsrpc(void)
{
static hf_register_info hf[] = {
{ &hf_frsrpc_opnum,
{ "Operation", "frsrpc.opnum", FT_UINT16, BASE_DEC,
NULL, 0x0, NULL, HFILL }},
{ &hf_frsrpc_unknown32,
{ "unknown32", "frsrpc.unknown32", FT_UINT32, BASE_HEX,
NULL, 0x0, "unknown int32", HFILL }},
{ &hf_frsrpc_tlvsize,
{ "TLV Size", "frsrpc.tlv_size", FT_UINT32, BASE_DEC,
NULL, 0x0, "Size of tlv blob in bytes", HFILL }},
{ &hf_frsrpc_tlv,
{ "TLV", "frsrpc.tlv", FT_NONE, BASE_NONE,
NULL, 0x0, "A tlv blob", HFILL }},
{ &hf_frsrpc_tlv_item,
{ "TLV", "frsrpc.tlv_item", FT_NONE, BASE_NONE,
NULL, 0x0, "A tlv item", HFILL }},
{ &hf_frsrpc_tlv_tag,
{ "TLV Tag", "frsrpc.tlv.tag", FT_UINT16, BASE_DEC,
NULL, 0x0, NULL, HFILL }},
{ &hf_frsrpc_tlv_size,
{ "TLV Size", "frsrpc.tlv.size", FT_UINT32, BASE_DEC,
NULL, 0x0, NULL, HFILL }},
{ &hf_frsrpc_tlv_data,
{ "TLV Data", "frsrpc.tlv.data", FT_BYTES, BASE_NONE,
NULL, 0x0, NULL, HFILL }},
{ &hf_frsrpc_unknownbytes,
{ "unknown", "frsrpc.unknownbytes", FT_BYTES, BASE_NONE,
NULL, 0x0, "unknown bytes", HFILL }},
{ &hf_frsrpc_guid_size,
{ "Guid Size", "frsrpc.guid.size", FT_UINT32, BASE_DEC,
NULL, 0x0, NULL, HFILL }},
{ &hf_frsrpc_ssrv_guid,
{ "SSRV GUID", "frsrpc.ssrv.guid", FT_GUID, BASE_NONE,
NULL, 0x0, NULL, HFILL }},
{ &hf_frsrpc_dsrv_guid,
{ "DSRV GUID", "frsrpc.dsrv.guid", FT_GUID, BASE_NONE,
NULL, 0x0, NULL, HFILL }},
{ &hf_frsrpc_str_size,
{ "String Size", "frsrpc.str.size", FT_UINT32, BASE_DEC,
NULL, 0x0, NULL, HFILL }},
{ &hf_frsrpc_ssrv,
{ "SSRV", "frsrpc.ssrv", FT_STRING, BASE_NONE,
NULL, 0x0, NULL, HFILL }},
{ &hf_frsrpc_dsrv,
{ "DSRV", "frsrpc.dsrv", FT_STRING, BASE_NONE,
NULL, 0x0, NULL, HFILL }},
{ &hf_frsrpc_timestamp,
{ "Timestamp", "frsrpc.timestamp", FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL,
NULL, 0x0, NULL, HFILL }},
};
static gint *ett[] = {
&ett_dcerpc_frsrpc,
&ett_frsrpc_tlv,
&ett_frsrpc_tlv_item,
};
proto_dcerpc_frsrpc = proto_register_protocol(
"Microsoft File Replication Service", "FRSRPC", "frsrpc");
proto_register_field_array(proto_dcerpc_frsrpc, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
}
void
proto_reg_handoff_dcerpc_frsrpc(void)
{
/* register protocol as dcerpc */
dcerpc_init_uuid(
proto_dcerpc_frsrpc, ett_dcerpc_frsrpc, &uuid_dcerpc_frsrpc,
ver_dcerpc_frsrpc, dcerpc_frsrpc_dissectors, hf_frsrpc_opnum);
}
|
