forked from osmocom/wireshark
![Dario Lombardo](/assets/img/avatar_default.png)
Change-Id: I5aeccf54d1ab6b9b4098fb3dbf529550c57319e8 Reviewed-on: https://code.wireshark.org/review/28662 Petri-Dish: Anders Broman <a.broman58@gmail.com> Tested-by: Petri Dish Buildbot Reviewed-by: Anders Broman <a.broman58@gmail.com>
154 lines
4.2 KiB
C
154 lines
4.2 KiB
C
/* packet-dxl.c
|
|
*
|
|
* Routines for DXL dissection
|
|
* Github projects:
|
|
* https://github.com/opendxl
|
|
*
|
|
* Copyright 2018, Dario Lombardo <lomato@gmail.com>
|
|
*
|
|
* 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 <epan/tvbuff.h>
|
|
#include <epan/expert.h>
|
|
|
|
void proto_register_dxl(void);
|
|
|
|
static int proto_dxl = -1;
|
|
|
|
static int hf_dxl_version = -1;
|
|
static int hf_dxl_type = -1;
|
|
|
|
static gint ett_dxl = -1;
|
|
|
|
static expert_field ei_dxl_unsupported = EI_INIT;
|
|
|
|
static dissector_handle_t msgpack_handle;
|
|
|
|
#define DXL_REQUEST 0
|
|
#define DXL_RESPONSE 1
|
|
#define DXL_EVENT 2
|
|
#define DXL_ERROR 3
|
|
|
|
static const value_string dxl_message_types[] = {
|
|
{ DXL_REQUEST, "Request" },
|
|
{ DXL_RESPONSE, "Response" },
|
|
{ DXL_EVENT, "Event" },
|
|
{ DXL_ERROR, "Error" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static void dissect_dxl_event(tvbuff_t* tvb, packet_info* pinfo, proto_tree* dxl_tree, gint* offset)
|
|
{
|
|
tvbuff_t* tvb_msgpack;
|
|
|
|
tvb_msgpack = tvb_new_subset_remaining(tvb, *offset);
|
|
*offset = call_dissector_with_data(msgpack_handle, tvb_msgpack, pinfo, dxl_tree, "Message ID");
|
|
|
|
tvb_msgpack = tvb_new_subset_remaining(tvb_msgpack, *offset);
|
|
*offset = call_dissector_with_data(msgpack_handle, tvb_msgpack, pinfo, dxl_tree, "Client ID");
|
|
|
|
tvb_msgpack = tvb_new_subset_remaining(tvb_msgpack, *offset);
|
|
*offset = call_dissector_with_data(msgpack_handle, tvb_msgpack, pinfo, dxl_tree, "Source Broker ID");
|
|
|
|
tvb_msgpack = tvb_new_subset_remaining(tvb_msgpack, *offset);
|
|
*offset = call_dissector_with_data(msgpack_handle, tvb_msgpack, pinfo, dxl_tree, "Broker IDs");
|
|
|
|
tvb_msgpack = tvb_new_subset_remaining(tvb_msgpack, *offset);
|
|
*offset = call_dissector_with_data(msgpack_handle, tvb_msgpack, pinfo, dxl_tree, "Client IDs");
|
|
|
|
tvb_msgpack = tvb_new_subset_remaining(tvb_msgpack, *offset);
|
|
*offset = call_dissector_with_data(msgpack_handle, tvb_msgpack, pinfo, dxl_tree, "Payload");
|
|
|
|
tvb_msgpack = tvb_new_subset_remaining(tvb_msgpack, *offset);
|
|
*offset = call_dissector_with_data(msgpack_handle, tvb_msgpack, pinfo, dxl_tree, "Reply to topic");
|
|
|
|
tvb_msgpack = tvb_new_subset_remaining(tvb_msgpack, *offset);
|
|
*offset = call_dissector_with_data(msgpack_handle, tvb_msgpack, pinfo, dxl_tree, "Service ID");
|
|
}
|
|
|
|
static int dissect_dxl(tvbuff_t* tvb, packet_info* pinfo, proto_tree* tree, void* data _U_)
|
|
{
|
|
gint offset = 0;
|
|
proto_item* ti;
|
|
proto_tree* dxl_tree;
|
|
guint8 type;
|
|
|
|
ti = proto_tree_add_item(tree, proto_dxl, tvb, 0, -1, ENC_NA);
|
|
dxl_tree = proto_item_add_subtree(ti, ett_dxl);
|
|
|
|
proto_tree_add_item(dxl_tree, hf_dxl_version, tvb, offset, 1, ENC_NA);
|
|
offset += 1;
|
|
|
|
type = tvb_get_guint8(tvb, offset);
|
|
|
|
proto_tree_add_item(dxl_tree, hf_dxl_type, tvb, offset, 1, ENC_NA);
|
|
offset += 1;
|
|
|
|
switch (type) {
|
|
case DXL_REQUEST:
|
|
case DXL_RESPONSE:
|
|
case DXL_ERROR:
|
|
expert_add_info_format(pinfo, tree, &ei_dxl_unsupported, "Type 0x%x is unsupported", type);
|
|
break;
|
|
case DXL_EVENT:
|
|
dissect_dxl_event(tvb, pinfo, dxl_tree, &offset);
|
|
break;
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
void proto_register_dxl(void)
|
|
{
|
|
expert_module_t* expert_dxl;
|
|
|
|
static hf_register_info hf[] = {
|
|
{ &hf_dxl_version,
|
|
{ "Version", "dxl.version", FT_UINT8, BASE_DEC, NULL, 0x00, NULL, HFILL }
|
|
},
|
|
{ &hf_dxl_type,
|
|
{ "Type", "dxl.type", FT_UINT8, BASE_HEX, VALS(dxl_message_types), 0x00, NULL, HFILL }
|
|
}
|
|
};
|
|
|
|
static gint* ett[] = {
|
|
&ett_dxl
|
|
};
|
|
|
|
proto_dxl = proto_register_protocol("Data Exchange Layer", "DXL", "dxl");
|
|
register_dissector("dxl", dissect_dxl, proto_dxl);
|
|
|
|
proto_register_field_array(proto_dxl, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
|
|
static ei_register_info ei[] = {
|
|
{ &ei_dxl_unsupported, { "dxl.type.unsupported", PI_UNDECODED, PI_WARN, "Unsupported DXL message", EXPFILL }}
|
|
};
|
|
|
|
expert_dxl = expert_register_protocol(proto_dxl);
|
|
expert_register_field_array(expert_dxl, ei, array_length(ei));
|
|
|
|
msgpack_handle = find_dissector("msgpack");
|
|
}
|
|
|
|
/*
|
|
* Editor modelines - http://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:
|
|
*/
|