152 lines
4.8 KiB
C
152 lines
4.8 KiB
C
![]() |
/* packet-usb-com.c
|
||
|
* Routines for USB Communications and CDC Control dissection
|
||
|
* Copyright 2013, Pascal Quantin <pascal.quantin@gmail.com>
|
||
|
*
|
||
|
* $Id$
|
||
|
*
|
||
|
* Wireshark - Network traffic analyzer
|
||
|
* By Gerald Combs <gerald@wireshark.org>
|
||
|
* 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.,
|
||
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||
|
*/
|
||
|
|
||
|
#include "config.h"
|
||
|
|
||
|
#include <epan/packet.h>
|
||
|
#include "packet-usb.h"
|
||
|
|
||
|
/* protocols and header fields */
|
||
|
static int proto_usb_com = -1;
|
||
|
static int hf_usb_com_subclass = -1;
|
||
|
static int hf_usb_com_payload = -1;
|
||
|
|
||
|
static gint ett_usb_com = -1;
|
||
|
|
||
|
static dissector_handle_t mbim_handle = NULL;
|
||
|
|
||
|
#define COM_SUBCLASS_RESERVED 0x00
|
||
|
#define COM_SUBCLASS_DLCM 0x01
|
||
|
#define COM_SUBCLASS_ACM 0x02
|
||
|
#define COM_SUBCLASS_TCM 0x03
|
||
|
#define COM_SUBCLASS_MCCM 0x04
|
||
|
#define COM_SUBCLASS_CCM 0x05
|
||
|
#define COM_SUBCLASS_ENCM 0x06
|
||
|
#define COM_SUBCLASS_ANCM 0x07
|
||
|
#define COM_SUBCLASS_WHCM 0x08
|
||
|
#define COM_SUBCLASS_DM 0x09
|
||
|
#define COM_SUBCLASS_MDLM 0x0a
|
||
|
#define COM_SUBCLASS_OBEX 0x0b
|
||
|
#define COM_SUBCLASS_EEM 0x0c
|
||
|
#define COM_SUBCLASS_NCM 0x0d
|
||
|
#define COM_SUBCLASS_MBIM 0x0e
|
||
|
|
||
|
static const value_string usb_com_subclass_vals[] = {
|
||
|
{COM_SUBCLASS_RESERVED, "RESERVED"},
|
||
|
{COM_SUBCLASS_DLCM, "Direct Line Control Model"},
|
||
|
{COM_SUBCLASS_ACM, "Abstract Control Model"},
|
||
|
{COM_SUBCLASS_TCM, "Telephone Control Model"},
|
||
|
{COM_SUBCLASS_MCCM, "Multi-Channel Control Model"},
|
||
|
{COM_SUBCLASS_CCM, "CAPI Control Model"},
|
||
|
{COM_SUBCLASS_ENCM, "Ethernet Networking Control Model"},
|
||
|
{COM_SUBCLASS_ANCM, "ATM Networking Control Model"},
|
||
|
{COM_SUBCLASS_WHCM, "Wireless Handset Control Model"},
|
||
|
{COM_SUBCLASS_DM, "Device Management"},
|
||
|
{COM_SUBCLASS_MDLM, "Mobile Direct Line Model"},
|
||
|
{COM_SUBCLASS_OBEX, "OBEX"},
|
||
|
{COM_SUBCLASS_EEM, "Ethernet Emulation Model"},
|
||
|
{COM_SUBCLASS_NCM, "Network Control Model"},
|
||
|
{COM_SUBCLASS_MBIM, "Mobile Broadband Interface Model"},
|
||
|
{0, NULL}
|
||
|
};
|
||
|
|
||
|
static int
|
||
|
dissect_usb_com_descriptor(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
|
||
|
{
|
||
|
usb_conv_info_t *usb_conv_info;
|
||
|
proto_tree *subtree;
|
||
|
proto_item *ti;
|
||
|
|
||
|
usb_conv_info = (usb_conv_info_t *)pinfo->usb_conv_info;
|
||
|
|
||
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "USBCOM");
|
||
|
|
||
|
ti = proto_tree_add_item(tree, proto_usb_com, tvb, 0, -1, ENC_NA);
|
||
|
subtree = proto_item_add_subtree(ti, ett_usb_com);
|
||
|
|
||
|
if (usb_conv_info) {
|
||
|
ti = proto_tree_add_uint(subtree, hf_usb_com_subclass, tvb, 0, 0, usb_conv_info->interfaceSubclass);
|
||
|
PROTO_ITEM_SET_GENERATED(ti);
|
||
|
|
||
|
switch (usb_conv_info->interfaceSubclass)
|
||
|
{
|
||
|
case COM_SUBCLASS_MBIM:
|
||
|
if (mbim_handle) {
|
||
|
return call_dissector(mbim_handle, tvb, pinfo, tree);
|
||
|
}
|
||
|
break;
|
||
|
default:
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
proto_tree_add_item(subtree, hf_usb_com_payload, tvb, 0, -1, ENC_NA);
|
||
|
return tvb_length(tvb);
|
||
|
}
|
||
|
|
||
|
void
|
||
|
proto_register_usb_com(void)
|
||
|
{
|
||
|
static hf_register_info hf[] = {
|
||
|
{ &hf_usb_com_subclass,
|
||
|
{ "Subclass", "usbcom.subclass", FT_UINT8, BASE_HEX,
|
||
|
VALS(usb_com_subclass_vals), 0, NULL, HFILL }},
|
||
|
{ &hf_usb_com_payload,
|
||
|
{ "Payload", "usbcom.payload", FT_BYTES, BASE_NONE,
|
||
|
NULL, 0, NULL, HFILL }}
|
||
|
};
|
||
|
|
||
|
static gint *usb_com_subtrees[] = {
|
||
|
&ett_usb_com
|
||
|
};
|
||
|
|
||
|
proto_usb_com = proto_register_protocol("USB Communications and CDC Control", "USBCOM", "usbcom");
|
||
|
proto_register_field_array(proto_usb_com, hf, array_length(hf));
|
||
|
proto_register_subtree_array(usb_com_subtrees, array_length(usb_com_subtrees));
|
||
|
}
|
||
|
|
||
|
void
|
||
|
proto_reg_handoff_usb_com(void)
|
||
|
{
|
||
|
dissector_handle_t usb_com_descriptor_handle;
|
||
|
|
||
|
usb_com_descriptor_handle = new_create_dissector_handle(dissect_usb_com_descriptor, proto_usb_com);
|
||
|
dissector_add_uint("usb.control", IF_CLASS_COMMUNICATIONS, usb_com_descriptor_handle);
|
||
|
mbim_handle = find_dissector("mbim");
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
* Editor modelines - http://www.wireshark.org/tools/modelines.html
|
||
|
*
|
||
|
* Local variables:
|
||
|
* c-basic-offset: 4
|
||
|
* tab-width: 8
|
||
|
* indent-tabs-mode: nil
|
||
|
* End:
|
||
|
*
|
||
|
* vi: set shiftwidth=4 tabstop=8 expandtab:
|
||
|
* :indentSize=4:tabSize=8:noTabs=true:
|
||
|
*/
|