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|
/* packet-dcom-remunkn.c
* Routines for the IRemUnknown interface
* Copyright 2004, Jelmer Vernooij <jelmer@samba.org>
*
* $Id$
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@ethereal.com>
* 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.
*/
/* see packet-dcom.c for details about DCOM */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
#include <glib.h>
#include <epan/packet.h>
#include "packet-dcerpc.h"
#include "packet-dcom.h"
static int hf_remunk_opnum = -1;
static int hf_remunk_ipid = -1;
static int hf_remunk_refs = -1;
static int hf_remunk_iids = -1;
static int hf_remunk_iid = -1;
static int hf_remunk_flags = -1;
static int hf_remunk_oxid = -1;
static int hf_remunk_oid = -1;
static int hf_remunk_qiresult = -1;
static gint ett_remunk_reminterfaceref = -1;
static int hf_remunk_reminterfaceref = -1;
static int hf_remunk_interface_refs = -1;
static int hf_remunk_public_refs = -1;
static int hf_remunk_private_refs = -1;
static gint ett_remunk_rqi_result = -1;
static gint ett_remunk = -1;
static e_uuid_t uuid_remunk = { 0x00000131, 0x0000, 0x0000, { 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x46 } };
static guint16 ver_remunk = 0;
static int proto_remunk = -1;
/* There is a little bit confusion about the IRemUnknown2 interface UUIDs */
/* DCOM documentation tells us: 0x00000142 (7 methods) */
/* win2000 registry tells us: 0x00000142 IRemoteQI (4 methods) */
/* win2000 registry tells us: 0x00000143 IRemUnknown2 (7 methods) */
/* There is some evidence, that the DCOM documentation is wrong, so using 143 for IRemUnknown2 now. */
static gint ett_remunk2 = -1;
static e_uuid_t uuid_remunk2 = { 0x00000143, 0x0000, 0x0000, { 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x46 } };
static guint16 ver_remunk2 = 0;
static int proto_remunk2 = -1;
static int
dissect_remunk_remqueryinterface_rqst(tvbuff_t *tvb, int offset,
packet_info *pinfo, proto_tree *tree, guint8 *drep)
{
e_uuid_t ipid;
guint32 u32Refs;
guint16 u16IIDs;
guint32 u32ArraySize;
guint32 u32ItemIdx;
offset = dissect_dcom_this(tvb, offset, pinfo, tree, drep);
offset = dissect_dcom_UUID(tvb, offset, pinfo, tree, drep,
hf_remunk_ipid, &ipid);
offset = dissect_dcom_DWORD(tvb, offset, pinfo, tree, drep,
hf_remunk_refs, &u32Refs);
offset = dissect_dcom_WORD(tvb, offset, pinfo, tree, drep,
hf_remunk_iids, &u16IIDs);
offset = dissect_dcom_dcerpc_array_size(tvb, offset, pinfo, tree, drep,
&u32ArraySize);
u32ItemIdx = 1;
while (u32ArraySize--) {
offset = dissect_dcom_append_UUID(tvb, offset, pinfo, tree, drep,
hf_remunk_iid, "IID", u32ItemIdx++);
}
return offset;
}
static int
dissect_remunk_remqueryinterface_resp(tvbuff_t *tvb, int offset,
packet_info *pinfo, proto_tree *tree, guint8 *drep)
{
guint32 u32Pointer;
guint32 u32ArraySize;
guint32 u32ItemIdx;
proto_item *sub_item;
proto_tree *sub_tree;
guint32 u32HResult;
guint32 u32SubStart;
offset = dissect_dcom_that(tvb, offset, pinfo, tree, drep);
offset = dissect_dcom_dcerpc_pointer(tvb, offset, pinfo, tree, drep,
&u32Pointer);
offset = dissect_dcom_dcerpc_array_size(tvb, offset, pinfo, tree, drep,
&u32ArraySize);
u32ItemIdx = 1;
while (u32ArraySize--) {
/* add subtree */
sub_item = proto_tree_add_item(tree, hf_remunk_qiresult, tvb, offset, 0, FALSE);
sub_tree = proto_item_add_subtree(sub_item, ett_remunk_rqi_result);
/* REMQIRESULT */
offset = dissect_dcom_HRESULT(tvb, offset, pinfo, sub_tree, drep,
&u32HResult);
u32SubStart = offset - 4;
offset = dissect_dcom_dcerpc_pointer(tvb, offset, pinfo, sub_tree, drep,
&u32Pointer);
if (u32Pointer) {
offset = dissect_dcom_STDOBJREF(tvb, offset, pinfo, sub_tree, drep, 0 /* hfindex */);
}
/* update subtree */
proto_item_append_text(sub_item, "[%u]: %s",
u32ItemIdx,
val_to_str(u32HResult, dcom_hresult_vals, "Unknown (0x%08x)") );
proto_item_set_len(sub_item, offset - u32SubStart);
/* update column info now */
if (check_col(pinfo->cinfo, COL_INFO)) {
col_append_fstr(pinfo->cinfo, COL_INFO, " %s[%u]",
val_to_str(u32HResult, dcom_hresult_vals, "Unknown (0x%08x)"),
u32ItemIdx);
}
u32ItemIdx++;
}
/* HRESULT of call */
offset = dissect_dcom_HRESULT(tvb, offset, pinfo, tree, drep,
&u32HResult);
/* update column info now */
if (check_col(pinfo->cinfo, COL_INFO)) {
col_append_fstr(pinfo->cinfo, COL_INFO, " -> %s",
val_to_str(u32HResult, dcom_hresult_vals, "Unknown (0x%08x)"));
}
return offset;
}
static int
dissect_remunk_remrelease_rqst(tvbuff_t *tvb, int offset,
packet_info *pinfo, proto_tree *tree, guint8 *drep)
{
guint32 u32Pointer;
guint32 u32IntRefs;
guint32 u32ItemIdx;
e_uuid_t ipid;
guint32 u32PublicRefs;
guint32 u32PrivateRefs;
const gchar *pszFormat;
proto_item *sub_item;
proto_tree *sub_tree;
guint32 u32SubStart;
offset = dissect_dcom_this(tvb, offset, pinfo, tree, drep);
offset = dissect_dcom_dcerpc_pointer(tvb, offset, pinfo, tree, drep,
&u32Pointer);
offset = dissect_dcom_DWORD(tvb, offset, pinfo, tree, drep,
hf_remunk_interface_refs, &u32IntRefs);
/* update column info now */
if (check_col(pinfo->cinfo, COL_INFO)) {
if (u32IntRefs) {
col_append_fstr(pinfo->cinfo, COL_INFO, " Cnt=%u Refs=", u32IntRefs);
} else {
col_append_fstr(pinfo->cinfo, COL_INFO, " Cnt=0");
}
}
u32ItemIdx = 1;
while (u32IntRefs--) {
/* add subtree */
sub_item = proto_tree_add_item(tree, hf_remunk_reminterfaceref, tvb, offset, 0, FALSE);
sub_tree = proto_item_add_subtree(sub_item, ett_remunk_reminterfaceref);
u32SubStart = offset;
offset = dissect_dcom_UUID(tvb, offset, pinfo, sub_tree, drep,
hf_remunk_ipid, &ipid);
offset = dissect_dcom_DWORD(tvb, offset, pinfo, sub_tree, drep,
hf_remunk_public_refs, &u32PublicRefs);
offset = dissect_dcom_DWORD(tvb, offset, pinfo, sub_tree, drep,
hf_remunk_private_refs, &u32PrivateRefs);
/* update subtree */
proto_item_append_text(sub_item, "[%u]: IPID=%s, PublicRefs=%u, PrivateRefs=%u",
u32ItemIdx,
dcom_uuid_to_str(&ipid),
u32PublicRefs, u32PrivateRefs);
proto_item_set_len(sub_item, offset - u32SubStart);
/* update column info now */
if (check_col(pinfo->cinfo, COL_INFO)) {
pszFormat = "";
if (u32ItemIdx == 1) {
pszFormat = "%u-%u";
} else if (u32ItemIdx < 10) {
pszFormat = ",%u-%u";
} else if (u32ItemIdx == 10) {
pszFormat = ",...";
}
col_append_fstr(pinfo->cinfo, COL_INFO, pszFormat, u32PublicRefs, u32PrivateRefs);
}
u32ItemIdx++;
}
return offset;
}
/* sub dissector table of IRemUnknown interface */
static dcerpc_sub_dissector remunk_dissectors[] = {
{ 0, "QueryInterface", NULL, NULL },
{ 1, "AddRef", NULL, NULL },
{ 2, "Release", NULL, NULL },
{ 3, "RemQueryInterface", dissect_remunk_remqueryinterface_rqst, dissect_remunk_remqueryinterface_resp },
{ 4, "RemAddRef", NULL, NULL },
{ 5, "RemRelease", dissect_remunk_remrelease_rqst, dissect_dcom_simple_resp },
{ 0, NULL, NULL, NULL }
};
/* sub dissector table of IRemUnknown2 interface */
static dcerpc_sub_dissector remunk2_dissectors[] = {
{ 0, "QueryInterface", NULL, NULL },
{ 1, "AddRef", NULL, NULL },
{ 2, "Release", NULL, NULL },
{ 3, "RemQueryInterface", dissect_remunk_remqueryinterface_rqst, dissect_remunk_remqueryinterface_resp },
{ 4, "RemAddRef", NULL, NULL },
{ 5, "RemRelease", dissect_remunk_remrelease_rqst, dissect_dcom_simple_resp },
{ 6, "RemQueryInterface2", NULL, NULL },
{ 0, NULL, NULL, NULL }
};
void
proto_register_remunk (void)
{
static hf_register_info hf_remunk_rqi_array[] = {
{ &hf_remunk_opnum,
{ "Operation", "remunk_opnum", FT_UINT16, BASE_DEC, NULL, 0x0, "Operation", HFILL }},
{ &hf_remunk_ipid,
{ "IPID", "remunk_ipid", FT_STRING, BASE_NONE, NULL, 0x0, "", HFILL }},
{ &hf_remunk_refs,
{ "Refs", "remunk_refs", FT_UINT32, BASE_DEC, NULL, 0x0, "", HFILL }},
{ &hf_remunk_iids,
{ "IIDs", "remunk_iids", FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL }},
{ &hf_remunk_iid,
{ "IID", "remunk_iid", FT_STRING, BASE_NONE, NULL, 0x0, "", HFILL }},
{ &hf_remunk_qiresult,
{ "QIResult", "remunk_qiresult", FT_NONE, BASE_DEC, NULL, 0x0, "", HFILL }},
{ &hf_remunk_flags,
{ "Flags", "remunk_flags", FT_UINT32, BASE_HEX, NULL, 0x0, "", HFILL }},
{ &hf_remunk_public_refs,
{ "PublicRefs", "remunk_public_refs", FT_UINT32, BASE_DEC, NULL, 0x0, "", HFILL }},
{ &hf_remunk_oxid,
{ "OXID", "remunk_oxid", FT_UINT64, BASE_HEX, NULL, 0x0, "", HFILL }},
{ &hf_remunk_oid,
{ "OID", "remunk_oid", FT_UINT64, BASE_HEX, NULL, 0x0, "", HFILL }},
{ &hf_remunk_reminterfaceref,
{ "RemInterfaceRef", "remunk_reminterfaceref", FT_NONE, BASE_NONE, NULL, 0x0, "", HFILL }},
{ &hf_remunk_interface_refs,
{ "InterfaceRefs", "remunk_int_refs", FT_UINT32, BASE_DEC, NULL, 0x0, "", HFILL }},
{ &hf_remunk_private_refs,
{ "PrivateRefs", "remunk_private_refs", FT_UINT32, BASE_DEC, NULL, 0x0, "", HFILL }}
};
static gint *ett_remunk_array[] = {
&ett_remunk,
&ett_remunk_rqi_result,
&ett_remunk2,
&ett_remunk_reminterfaceref
};
proto_remunk = proto_register_protocol ("IRemUnknown", "IRemUnknown", "remunk");
proto_register_field_array (proto_remunk, hf_remunk_rqi_array, array_length (hf_remunk_rqi_array));
proto_remunk2 = proto_register_protocol ("IRemUnknown2", "IRemUnknown2", "remunk2");
proto_register_subtree_array (ett_remunk_array, array_length (ett_remunk_array));
}
void
proto_reg_handoff_remunk (void)
{
/* Register the interfaces */
dcerpc_init_uuid(proto_remunk, ett_remunk,
&uuid_remunk, ver_remunk,
remunk_dissectors, hf_remunk_opnum);
dcerpc_init_uuid(proto_remunk2, ett_remunk2,
&uuid_remunk2, ver_remunk2,
remunk2_dissectors, hf_remunk_opnum);
}
|
