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/* packet-dcerpc-messenger.c
* Routines for SMB \PIPE\msgsvc packet disassembly
* Copyright 2003 Ronnie Sahlberg
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "config.h"
#include <epan/packet.h>
#include "packet-dcerpc.h"
#include "packet-dcerpc-nt.h"
#include "packet-windows-common.h"
void proto_register_dcerpc_messenger(void);
void proto_reg_handoff_dcerpc_messenger(void);
static int proto_dcerpc_messenger = -1;
static int hf_messenger_opnum = -1;
static int hf_messenger_rc = -1;
static int hf_messenger_server = -1;
static int hf_messenger_client = -1;
static int hf_messenger_message = -1;
static gint ett_dcerpc_messenger = -1;
/* Windows messenger service listens on two endpoints:
* \pipe\msgsvc named pipe
* a dynamic UDP port
*/
static e_guid_t uuid_dcerpc_messenger = {
0x5a7b91f8, 0xff00, 0x11d0,
{ 0xa9, 0xb2, 0x00, 0xc0, 0x4f, 0xb6, 0xe6, 0xfc}
};
static guint16 ver_dcerpc_messenger = 1;
/*
* IDL [in][string][ref] char *server;
* IDL [in][string][ref] char *client;
* IDL [in][string][ref] char *message;
*/
static int
messenger_dissect_send_message_rqst(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree, dcerpc_info *di, guint8 *drep)
{
offset = dissect_ndr_pointer(tvb, offset, pinfo, tree, di, drep,
dissect_ndr_char_cvstring, NDR_POINTER_REF,
"Server", hf_messenger_server);
offset = dissect_ndr_pointer(tvb, offset, pinfo, tree, di, drep,
dissect_ndr_char_cvstring, NDR_POINTER_REF,
"Client", hf_messenger_client);
offset = dissect_ndr_pointer(tvb, offset, pinfo, tree, di, drep,
dissect_ndr_char_cvstring, NDR_POINTER_REF,
"Message", hf_messenger_message);
return offset;
}
static int
messenger_dissect_send_message_reply(tvbuff_t *tvb, int offset, packet_info *pinfo,
proto_tree *tree, dcerpc_info *di, guint8 *drep)
{
offset = dissect_ntstatus(tvb, offset, pinfo, tree, di, drep,
hf_messenger_rc, NULL);
return offset;
}
static dcerpc_sub_dissector dcerpc_messenger_dissectors[] = {
{0, "NetrSendMessage",
messenger_dissect_send_message_rqst,
messenger_dissect_send_message_reply },
{0, NULL, NULL, NULL }
};
void
proto_register_dcerpc_messenger(void)
{
static hf_register_info hf[] = {
{ &hf_messenger_opnum,
{ "Operation", "messenger.opnum", FT_UINT16, BASE_DEC,
NULL, 0x0, NULL, HFILL }},
{ &hf_messenger_rc,
{ "Return code", "messenger.rc", FT_UINT32, BASE_HEX | BASE_EXT_STRING, &NT_errors_ext, 0x0, NULL, HFILL }},
{ &hf_messenger_server, {
"Server", "messenger.server",
FT_STRING, BASE_NONE, NULL, 0, "Server to send the message to", HFILL }},
{ &hf_messenger_client, {
"Client", "messenger.client",
FT_STRING, BASE_NONE, NULL, 0, "Client that sent the message", HFILL }},
{ &hf_messenger_message, {
"Message", "messenger.message",
FT_STRING, BASE_NONE, NULL, 0, "The message being sent", HFILL }}
};
static gint *ett[] = {
&ett_dcerpc_messenger
};
proto_dcerpc_messenger = proto_register_protocol(
"Microsoft Messenger Service", "Messenger", "messenger");
proto_register_field_array (proto_dcerpc_messenger, hf, array_length (hf));
proto_register_subtree_array(ett, array_length(ett));
}
void
proto_reg_handoff_dcerpc_messenger(void)
{
/* Register protocol as dcerpc */
dcerpc_init_uuid(proto_dcerpc_messenger, ett_dcerpc_messenger, &uuid_dcerpc_messenger,
ver_dcerpc_messenger, dcerpc_messenger_dissectors, hf_messenger_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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