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/* packet-dcom-remact.c
* Routines for DCOM Remote Activation
* Copyright 2001, Todd Sabin <tas@webspan.net>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
/* see packet-dcom.c for details about DCOM */
#include "config.h"
#include <epan/packet.h>
#include "packet-dcerpc.h"
#include "packet-dcom.h"
void proto_register_remact(void);
void proto_reg_handoff_remact(void);
static int hf_remact_opnum;
static int hf_remact_requested_protseqs;
static int hf_remact_protseqs;
static int hf_remact_interfaces;
static int hf_remact_mode;
static int hf_remact_client_impl_level;
static int hf_remact_object_name;
static int hf_remact_object_storage;
static int hf_remact_interface_data;
static int hf_remact_oxid_bindings;
static int hf_remact_authn_hint;
static int proto_remact;
static int ett_remact;
static e_guid_t uuid_remact = { 0x4d9f4ab8, 0x7d1c, 0x11cf, { 0x86, 0x1e, 0x00, 0x20, 0xaf, 0x6e, 0x7c, 0x57 } };
static uint16_t ver_remact;
static int
dissect_remact_remote_activation_rqst(tvbuff_t *tvb, int offset,
packet_info *pinfo, proto_tree *tree, dcerpc_info *di, uint8_t *drep)
{
uint32_t u32ClientImpLevel;
uint32_t u32Mode;
uint32_t u32Interfaces;
uint32_t u32Pointer;
uint32_t u32ArraySize;
uint32_t u32ItemIdx;
uint16_t u16ProtSeqs;
e_guid_t clsid;
e_guid_t iid;
char szObjName[1000] = { 0 };
uint32_t u32ObjNameLen = sizeof(szObjName);
offset = dissect_dcom_this(tvb, offset, pinfo, tree, di, drep);
offset = dissect_dcom_append_UUID(tvb, offset, pinfo, tree, di, drep,
hf_dcom_clsid, -1, &clsid);
offset = dissect_dcom_dcerpc_pointer(tvb, offset, pinfo, tree, di, drep,
&u32Pointer);
if (u32Pointer) {
offset = dissect_dcom_BSTR(tvb, offset, pinfo, tree, di, drep,
hf_remact_object_name, szObjName, u32ObjNameLen);
}
offset = dissect_dcom_PMInterfacePointer(tvb, offset, pinfo, tree, di, drep,
hf_remact_object_storage, NULL /* XXX */);
offset = dissect_dcom_DWORD(tvb, offset, pinfo, tree, di, drep,
hf_remact_client_impl_level, &u32ClientImpLevel);
offset = dissect_dcom_DWORD(tvb, offset, pinfo, tree, di, drep,
hf_remact_mode, &u32Mode);
/* Interfaces */
offset = dissect_dcom_DWORD(tvb, offset, pinfo, tree, di, drep,
hf_remact_interfaces, &u32Interfaces);
offset = dissect_dcom_dcerpc_pointer(tvb, offset, pinfo, tree, di, drep,
&u32Pointer);
if (u32Pointer) {
offset = dissect_dcom_dcerpc_array_size(tvb, offset, pinfo, tree, di, drep,
&u32ArraySize);
u32ItemIdx = 1;
while (u32Interfaces--) {
offset = dissect_dcom_append_UUID(tvb, offset, pinfo, tree, di, drep,
hf_dcom_iid, u32ItemIdx, &iid);
u32ItemIdx++;
}
}
offset = dissect_dcom_WORD(tvb, offset, pinfo, tree, di, drep,
hf_remact_requested_protseqs, &u16ProtSeqs);
offset = dissect_dcom_dcerpc_array_size(tvb, offset, pinfo, tree, di, drep,
&u32ArraySize);
u32ItemIdx = 1;
while (u32ArraySize--) {
offset = dissect_dcom_WORD(tvb, offset, pinfo, tree, di, drep,
hf_remact_protseqs, &u16ProtSeqs);
u32ItemIdx++;
}
return offset;
}
static int
dissect_remact_remote_activation_resp(tvbuff_t *tvb, int offset,
packet_info *pinfo, proto_tree *tree, dcerpc_info *di, uint8_t *drep)
{
uint32_t u32Pointer;
e_guid_t ipid;
uint32_t u32AuthnHint;
uint16_t u16VersionMajor;
uint16_t u16VersionMinor;
uint32_t u32HResult;
uint32_t u32ArraySize;
uint32_t u32Idx;
uint32_t u32VariableOffset;
offset = dissect_dcom_that(tvb, offset, pinfo, tree, di, drep);
offset = dissect_dcom_ID(tvb, offset, pinfo, tree, di, drep,
hf_dcom_oxid, NULL);
offset = dissect_dcom_dcerpc_pointer(tvb, offset, pinfo, tree, di, drep,
&u32Pointer);
if (u32Pointer) {
offset = dissect_dcom_dcerpc_array_size(tvb, offset, pinfo, tree, di, drep,
&u32ArraySize);
offset = dissect_dcom_DUALSTRINGARRAY(tvb, offset, pinfo, tree, di, drep,
hf_remact_oxid_bindings, NULL);
}
offset = dissect_dcom_UUID(tvb, offset, pinfo, tree, di, drep,
hf_dcom_ipid, &ipid);
offset = dissect_dcom_DWORD(tvb, offset, pinfo, tree, di, drep,
hf_remact_authn_hint, &u32AuthnHint);
offset = dissect_dcom_COMVERSION(tvb, offset, pinfo, tree, di, drep,
&u16VersionMajor, &u16VersionMinor);
offset = dissect_dcom_HRESULT(tvb, offset, pinfo, tree, di, drep,
&u32HResult);
offset = dissect_dcom_dcerpc_array_size(tvb, offset, pinfo, tree, di, drep,
&u32ArraySize);
u32VariableOffset = offset + u32ArraySize * 4;
while (u32ArraySize--) {
offset = dissect_dcom_dcerpc_pointer(tvb, offset, pinfo, tree, di, drep,
&u32Pointer);
if (u32Pointer) {
u32VariableOffset = dissect_dcom_MInterfacePointer(tvb, u32VariableOffset, pinfo, tree, di, drep,
hf_remact_interface_data, NULL /* XXX */);
}
}
offset = u32VariableOffset;
offset = dissect_dcom_dcerpc_array_size(tvb, offset, pinfo, tree, di, drep,
&u32ArraySize);
u32Idx = 1;
while (u32ArraySize--) {
offset = dissect_dcom_indexed_HRESULT(tvb, offset, pinfo, tree, di, drep,
&u32HResult, u32Idx);
/* update column info now */
col_append_fstr(pinfo->cinfo, COL_INFO, " %s[%u]",
val_to_str(u32HResult, dcom_hresult_vals, "Unknown (0x%08x)"),
u32Idx);
u32Idx++;
}
offset = dissect_dcom_HRESULT(tvb, offset, pinfo, tree, di, drep,
&u32HResult);
/* update column info now */
col_append_fstr(pinfo->cinfo, COL_INFO, " -> %s",
val_to_str(u32HResult, dcom_hresult_vals, "Unknown (0x%08x)"));
return offset;
}
static const dcerpc_sub_dissector remact_dissectors[] = {
{ 0, "RemoteActivation", dissect_remact_remote_activation_rqst, dissect_remact_remote_activation_resp },
{ 0, NULL, NULL, NULL },
};
void
proto_register_remact (void)
{
static hf_register_info hf_remact[] = {
{ &hf_remact_opnum,
{ "Operation", "remact.opnum", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_remact_requested_protseqs,
{ "RequestedProtSeqs", "remact.req_prot_seqs", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_remact_protseqs,
{ "ProtSeqs", "remact.prot_seqs", FT_UINT16, BASE_DEC, VALS(dcom_protseq_vals), 0x0, NULL, HFILL }},
{ &hf_remact_interfaces,
{ "Interfaces", "remact.interfaces", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_remact_mode,
{ "Mode", "remact.mode", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_remact_client_impl_level,
{ "ClientImplLevel", "remact.client_impl_level", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_remact_object_name,
{ "ObjectName", "remact.object_name", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_remact_object_storage,
{ "ObjectStorage", "remact.object_storage", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_remact_interface_data,
{ "InterfaceData", "remact.interface_data", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_remact_oxid_bindings,
{ "OxidBindings", "remact.oxid_bindings", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_remact_authn_hint,
{ "AuthnHint", "remact.authn_hint", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
};
static int *ett[] = {
&ett_remact
};
proto_remact = proto_register_protocol ("DCOM IRemoteActivation", "REMACT", "remact");
proto_register_field_array (proto_remact, hf_remact, array_length (hf_remact));
proto_register_subtree_array (ett, array_length (ett));
}
void
proto_reg_handoff_remact (void)
{
/* Register the protocol as dcerpc */
dcerpc_init_uuid (proto_remact, ett_remact, &uuid_remact, ver_remact, remact_dissectors, hf_remact_opnum);
}
/*
* Editor modelines - https://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 8
* tab-width: 8
* indent-tabs-mode: t
* End:
*
* vi: set shiftwidth=8 tabstop=8 noexpandtab:
* :indentSize=8:tabSize=8:noTabs=false:
*/
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