forked from osmocom/wireshark
![Michael Mann](/assets/img/avatar_default.png)
Change-Id: I40d0c8253743183aecef252040b7dd6742ae5c71 Reviewed-on: https://code.wireshark.org/review/5934 Reviewed-by: Michael Mann <mmann78@netscape.net>
384 lines
13 KiB
C
384 lines
13 KiB
C
/* packet-dcom-remunkn.c
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* Routines for the IRemUnknown interface
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* Copyright 2004, Jelmer Vernooij <jelmer@samba.org>
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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/* see packet-dcom.c for details about DCOM */
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#include "config.h"
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#include <epan/packet.h>
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#include "packet-dcerpc.h"
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#include "packet-dcom.h"
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void proto_register_remunk(void);
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void proto_reg_handoff_remunk(void);
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static int hf_remunk_opnum = -1;
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static int hf_remunk_refs = -1;
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static int hf_remunk_iids = -1;
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/* static int hf_remunk_flags = -1; */
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static int hf_remunk_qiresult = -1;
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static gint ett_remunk_reminterfaceref = -1;
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static int hf_remunk_reminterfaceref = -1;
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static int hf_remunk_interface_refs = -1;
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static int hf_remunk_public_refs = -1;
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static int hf_remunk_private_refs = -1;
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static gint ett_remunk_rqi_result = -1;
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static gint ett_remunk = -1;
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static e_uuid_t uuid_remunk = { 0x00000131, 0x0000, 0x0000, { 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x46 } };
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static guint16 ver_remunk = 0;
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static int proto_remunk = -1;
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static e_uuid_t ipid_remunk = { 0x00000131, 0x1234, 0x5678, { 0xCA, 0xFE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x46 } };
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/* There is a little bit confusion about the IRemUnknown2 interface UUIDs */
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/* DCOM documentation tells us: 0x00000142 (7 methods) */
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/* win2000 registry tells us: 0x00000142 IRemoteQI (4 methods) */
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/* win2000 registry tells us: 0x00000143 IRemUnknown2 (7 methods) */
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/* There is some evidence, that the DCOM documentation is wrong, so using 143 for IRemUnknown2 now. */
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static gint ett_remunk2 = -1;
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static e_uuid_t uuid_remunk2 = { 0x00000143, 0x0000, 0x0000, { 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x46 } };
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static guint16 ver_remunk2 = 0;
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static int proto_remunk2 = -1;
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typedef struct remunk_remqueryinterface_call_s {
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guint iid_count;
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e_uuid_t *iids;
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} remunk_remqueryinterface_call_t;
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static int
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dissect_remunk_remqueryinterface_rqst(tvbuff_t *tvb, int offset,
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packet_info *pinfo, proto_tree *tree, dcerpc_info *di, guint8 *drep)
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{
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e_uuid_t ipid;
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guint32 u32Refs;
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guint16 u16IIDs;
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guint32 u32ArraySize;
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guint32 u32ItemIdx;
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e_uuid_t iid;
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remunk_remqueryinterface_call_t *call;
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offset = dissect_dcom_this(tvb, offset, pinfo, tree, di, drep);
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offset = dissect_dcom_UUID(tvb, offset, pinfo, tree, di, drep,
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hf_dcom_ipid, &ipid);
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offset = dissect_dcom_DWORD(tvb, offset, pinfo, tree, di, drep,
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hf_remunk_refs, &u32Refs);
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offset = dissect_dcom_WORD(tvb, offset, pinfo, tree, di, drep,
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hf_remunk_iids, &u16IIDs);
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offset = dissect_dcom_dcerpc_array_size(tvb, offset, pinfo, tree, di, drep,
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&u32ArraySize);
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/* limit the allocation to a reasonable size */
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if(u32ArraySize < 100) {
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call = (remunk_remqueryinterface_call_t *)wmem_alloc(wmem_file_scope(), sizeof(remunk_remqueryinterface_call_t) + u32ArraySize * sizeof(e_uuid_t));
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call->iid_count = u32ArraySize;
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call->iids = (e_uuid_t *) (call+1);
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di->call_data->private_data = call;
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} else {
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call = NULL;
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}
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for (u32ItemIdx = 0; u32ArraySize--; u32ItemIdx++) {
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offset = dissect_dcom_append_UUID(tvb, offset, pinfo, tree, di, drep,
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hf_dcom_iid, u32ItemIdx+1, &iid);
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if(call != NULL) {
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call->iids[u32ItemIdx] = iid;
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}
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}
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return offset;
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}
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static int
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dissect_remunk_remqueryinterface_resp(tvbuff_t *tvb, int offset,
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packet_info *pinfo, proto_tree *tree, dcerpc_info *di, guint8 *drep)
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{
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guint32 u32Pointer;
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guint32 u32ArraySize;
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guint32 u32ItemIdx;
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proto_item *sub_item;
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proto_tree *sub_tree;
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guint32 u32HResult;
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guint32 u32SubStart;
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e_uuid_t iid;
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e_uuid_t iid_null = DCERPC_UUID_NULL;
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remunk_remqueryinterface_call_t *call = (remunk_remqueryinterface_call_t *)di->call_data->private_data;
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guint64 oxid;
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guint64 oid;
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e_uuid_t ipid;
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offset = dissect_dcom_that(tvb, offset, pinfo, tree, di, drep);
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offset = dissect_dcom_dcerpc_pointer(tvb, offset, pinfo, tree, di, drep,
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&u32Pointer);
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offset = dissect_dcom_dcerpc_array_size(tvb, offset, pinfo, tree, di, drep,
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&u32ArraySize);
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u32ItemIdx = 1;
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while (u32ArraySize--) {
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/* add subtree */
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sub_item = proto_tree_add_item(tree, hf_remunk_qiresult, tvb, offset, 0, ENC_NA);
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sub_tree = proto_item_add_subtree(sub_item, ett_remunk_rqi_result);
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/* REMQIRESULT */
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offset = dissect_dcom_HRESULT(tvb, offset, pinfo, sub_tree, di, drep,
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&u32HResult);
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u32SubStart = offset - 4;
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offset = dissect_dcom_dcerpc_pointer(tvb, offset, pinfo, sub_tree, di, drep,
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&u32Pointer);
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/* try to read the iid from the request */
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if(call != NULL && u32ItemIdx <= call->iid_count) {
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iid = call->iids[u32ItemIdx-1];
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} else {
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iid = iid_null;
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}
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/* XXX - this doesn't seem to be dependent on the pointer above?!? */
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/*if (u32Pointer) {*/
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offset = dissect_dcom_STDOBJREF(tvb, offset, pinfo, sub_tree, di, drep, 0 /* hfindex */,
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&oxid, &oid, &ipid);
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/*}*/
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/* add interface instance to database (we currently only handle IPv4) */
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if(pinfo->net_src.type == AT_IPv4) {
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dcom_interface_new(pinfo,
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&pinfo->net_src,
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&iid, oxid, oid, &ipid);
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}
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/* update subtree */
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proto_item_append_text(sub_item, "[%u]: %s",
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u32ItemIdx,
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val_to_str(u32HResult, dcom_hresult_vals, "Unknown (0x%08x)") );
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proto_item_set_len(sub_item, offset - u32SubStart);
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/* update column info now */
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col_append_fstr(pinfo->cinfo, COL_INFO, " %s[%u]",
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val_to_str(u32HResult, dcom_hresult_vals, "Unknown (0x%08x)"),
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u32ItemIdx);
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u32ItemIdx++;
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}
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/* HRESULT of call */
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offset = dissect_dcom_HRESULT(tvb, offset, pinfo, tree, di, drep,
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&u32HResult);
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/* update column info now */
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col_append_fstr(pinfo->cinfo, COL_INFO, " -> %s",
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val_to_str(u32HResult, dcom_hresult_vals, "Unknown (0x%08x)"));
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return offset;
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}
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static int
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dissect_remunk_remrelease_rqst(tvbuff_t *tvb, int offset,
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packet_info *pinfo, proto_tree *tree, dcerpc_info *di, guint8 *drep)
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{
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guint32 u32Pointer;
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guint32 u32IntRefs;
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guint32 u32ItemIdx;
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e_uuid_t ipid;
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guint32 u32PublicRefs;
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guint32 u32PrivateRefs;
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const gchar *pszFormat;
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proto_item *sub_item;
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proto_tree *sub_tree;
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guint32 u32SubStart;
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offset = dissect_dcom_this(tvb, offset, pinfo, tree, di, drep);
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offset = dissect_dcom_dcerpc_pointer(tvb, offset, pinfo, tree, di, drep,
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&u32Pointer);
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offset = dissect_dcom_DWORD(tvb, offset, pinfo, tree, di, drep,
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hf_remunk_interface_refs, &u32IntRefs);
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/* update column info now */
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if (u32IntRefs) {
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col_append_fstr(pinfo->cinfo, COL_INFO, " Cnt=%u Refs=", u32IntRefs);
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} else {
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col_append_str(pinfo->cinfo, COL_INFO, " Cnt=0");
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}
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u32ItemIdx = 1;
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while (u32IntRefs--) {
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/* add subtree */
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sub_item = proto_tree_add_item(tree, hf_remunk_reminterfaceref, tvb, offset, 0, ENC_NA);
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sub_tree = proto_item_add_subtree(sub_item, ett_remunk_reminterfaceref);
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u32SubStart = offset;
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offset = dissect_dcom_UUID(tvb, offset, pinfo, sub_tree, di, drep,
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hf_dcom_ipid, &ipid);
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offset = dissect_dcom_DWORD(tvb, offset, pinfo, sub_tree, di, drep,
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hf_remunk_public_refs, &u32PublicRefs);
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offset = dissect_dcom_DWORD(tvb, offset, pinfo, sub_tree, di, drep,
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hf_remunk_private_refs, &u32PrivateRefs);
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/* update subtree */
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proto_item_append_text(sub_item, "[%u]: IPID=%s, PublicRefs=%u, PrivateRefs=%u",
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u32ItemIdx,
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guids_resolve_uuid_to_str(&ipid),
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u32PublicRefs, u32PrivateRefs);
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proto_item_set_len(sub_item, offset - u32SubStart);
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/* update column info now */
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pszFormat = "";
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if (u32ItemIdx == 1) {
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pszFormat = "%u-%u";
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} else if (u32ItemIdx < 10) {
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pszFormat = ",%u-%u";
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} else if (u32ItemIdx == 10) {
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pszFormat = ",...";
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}
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col_append_fstr(pinfo->cinfo, COL_INFO, pszFormat, u32PublicRefs, u32PrivateRefs);
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u32ItemIdx++;
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}
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return offset;
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}
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/* sub dissector table of IRemUnknown interface */
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static dcerpc_sub_dissector remunk_dissectors[] = {
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{ 0, "QueryInterface", NULL, NULL },
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{ 1, "AddRef", NULL, NULL },
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{ 2, "Release", NULL, NULL },
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{ 3, "RemQueryInterface", dissect_remunk_remqueryinterface_rqst, dissect_remunk_remqueryinterface_resp },
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{ 4, "RemAddRef", NULL, NULL },
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{ 5, "RemRelease", dissect_remunk_remrelease_rqst, dissect_dcom_simple_resp },
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{ 0, NULL, NULL, NULL }
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};
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/* sub dissector table of IRemUnknown2 interface */
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static dcerpc_sub_dissector remunk2_dissectors[] = {
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{ 0, "QueryInterface", NULL, NULL },
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{ 1, "AddRef", NULL, NULL },
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{ 2, "Release", NULL, NULL },
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{ 3, "RemQueryInterface", dissect_remunk_remqueryinterface_rqst, dissect_remunk_remqueryinterface_resp },
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{ 4, "RemAddRef", NULL, NULL },
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{ 5, "RemRelease", dissect_remunk_remrelease_rqst, dissect_dcom_simple_resp },
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{ 6, "RemQueryInterface2", NULL, NULL },
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{ 0, NULL, NULL, NULL }
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};
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void
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proto_register_remunk (void)
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{
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static hf_register_info hf_remunk_rqi_array[] = {
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{ &hf_remunk_opnum,
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{ "Operation", "remunk.opnum", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
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{ &hf_remunk_refs,
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{ "Refs", "remunk.refs", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
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{ &hf_remunk_iids,
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{ "IIDs", "remunk.iids", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
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{ &hf_remunk_qiresult,
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{ "QIResult", "remunk.qiresult", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }},
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#if 0
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{ &hf_remunk_flags,
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{ "Flags", "remunk.flags", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL }},
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#endif
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{ &hf_remunk_public_refs,
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{ "PublicRefs", "remunk.public_refs", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
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{ &hf_remunk_reminterfaceref,
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{ "RemInterfaceRef", "remunk.reminterfaceref", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }},
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{ &hf_remunk_interface_refs,
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{ "InterfaceRefs", "remunk.int_refs", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
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{ &hf_remunk_private_refs,
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{ "PrivateRefs", "remunk.private_refs", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }}
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};
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static gint *ett_remunk_array[] = {
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&ett_remunk,
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&ett_remunk_rqi_result,
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&ett_remunk2,
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&ett_remunk_reminterfaceref
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};
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proto_remunk = proto_register_protocol ("IRemUnknown", "IRemUnknown", "remunk");
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proto_register_field_array (proto_remunk, hf_remunk_rqi_array, array_length (hf_remunk_rqi_array));
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proto_remunk2 = proto_register_protocol ("IRemUnknown2", "IRemUnknown2", "remunk2");
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proto_register_subtree_array (ett_remunk_array, array_length (ett_remunk_array));
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}
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void
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proto_reg_handoff_remunk (void)
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{
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/* Register the IPID */
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guids_add_uuid(&ipid_remunk, "IPID-IRemUnknown");
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/* Register the interfaces */
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dcerpc_init_uuid(proto_remunk, ett_remunk,
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&uuid_remunk, ver_remunk,
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remunk_dissectors, hf_remunk_opnum);
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dcerpc_init_uuid(proto_remunk2, ett_remunk2,
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&uuid_remunk2, ver_remunk2,
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remunk2_dissectors, hf_remunk_opnum);
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}
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/*
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* Editor modelines - http://www.wireshark.org/tools/modelines.html
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*
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* Local variables:
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* c-basic-offset: 4
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* tab-width: 8
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* indent-tabs-mode: nil
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* End:
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*
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* vi: set shiftwidth=4 tabstop=8 expandtab:
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* :indentSize=4:tabSize=8:noTabs=true:
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*/
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