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/* packet-usb.h
*
* $Id$
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef __PACKET_USB_H__
#define __PACKET_USB_H__
typedef struct _usb_address_t {
guint32 device;
guint32 endpoint;
} usb_address_t;
#define USB_ADDR_LEN (sizeof(usb_address_t))
/* Flag used to mark usb_address_t.endpoint as an interface
* address instead of the normal endpoint address.
*/
#define INTERFACE_PORT 0x80000000
typedef struct _usb_conv_info_t usb_conv_info_t;
/* there is one such structure for each request/response */
typedef struct _usb_trans_info_t {
guint32 request_in;
guint32 response_in;
nstime_t req_time;
gboolean header_len_64;
/* Valid only for SETUP transactions */
struct _usb_setup {
guint8 requesttype;
guint8 request;
guint16 wValue;
guint16 wIndex;
} setup;
/* Valid only during GET DESCRIPTOR transactions */
union {
struct {
guint8 type;
guint8 index;
} get_descriptor;
} u;
/* used to pass the interface class from the
* interface descriptor onto the endpoint
* descriptors so that we can create a
* conversation with the appropriate class
* once we know the endpoint.
* Valid only during GET CONFIGURATION response.
*/
usb_conv_info_t *interface_info;
} usb_trans_info_t;
/* there is one such structure for each device/endpoint conversation */
struct _usb_conv_info_t {
guint16 interfaceClass; /* class for this conversation */
guint16 interfaceSubclass; /* Most recent interface descriptor subclass */
emem_tree_t *transactions;
usb_trans_info_t *usb_trans_info; /* pointer to the current transaction */
void *class_data; /* private class/id decode data */
};
/* This is what a tap will tap */
typedef struct _usb_tap_data_t {
guint8 urb_type;
guint8 transfer_type;
usb_conv_info_t *conv_info;
usb_trans_info_t *trans_info;
} usb_tap_data_t;
/* This is the endpoint number used for "no endpoint" or the fake endpoint
* for the host side since we need two endpoints to manage conversations
* properly.
*/
#define NO_ENDPOINT 0xffffffff
/*
* Values from the Linux USB pseudo-header.
*/
/*
* event_type values
*/
#define URB_SUBMIT 'S'
#define URB_COMPLETE 'C'
#define URB_ERROR 'E'
/*
* transfer_type values
*/
#define URB_ISOCHRONOUS 0x0
#define URB_INTERRUPT 0x1
#define URB_CONTROL 0x2
#define URB_BULK 0x3
#define URB_TRANSFER_IN 0x80 /* to host */
#define IF_CLASS_UNKNOWN 0xffff
#define IF_CLASS_FROM_INTERFACE_DESC 0x00
#define IF_CLASS_AUDIO 0x01
#define IF_CLASS_COMMUNICATIONS 0x02
#define IF_CLASS_HID 0x03
#define IF_CLASS_PHYSICAL 0x05
#define IF_CLASS_IMAGE 0x06
#define IF_CLASS_PRINTER 0x07
#define IF_CLASS_MASSTORAGE 0x08
#define IF_CLASS_HUB 0x09
#define IF_CLASS_CDC_DATA 0x0a
#define IF_CLASS_SMART_CARD 0x0b
#define IF_CLASS_CONTENT_SECURITY 0x0d
#define IF_CLASS_VIDEO 0x0e
#define IF_CLASS_DIAGNOSTIC_DEVICE 0xdc
#define IF_CLASS_WIRELESS_CONTROLLER 0xe0
#define IF_CLASS_MISCELLANEOUS 0xef
#define IF_CLASS_APPLICATION_SPECIFIC 0xfe
#define IF_CLASS_VENDOR_SPECIFIC 0xff
#define IF_SUBCLASS_UNKNOWN 0xffff
/* bmRequestType values */
#define USB_DIR_OUT 0 /* to device */
#define USB_DIR_IN 0x80 /* to host */
#define USB_TYPE_MASK (0x03 << 5)
#define USB_TYPE(type) (((type) & USB_TYPE_MASK) >> 5)
#define RQT_SETUP_TYPE_STANDARD 0
#define RQT_SETUP_TYPE_CLASS 1
#define RQT_SETUP_TYPE_VENDOR 2
#define USB_RECIPIENT_MASK 0x1F
#define USB_RECIPIENT(type) ((type) & USB_RECIPIENT_MASK)
#define RQT_SETUP_RECIPIENT_DEVICE 0
#define RQT_SETUP_RECIPIENT_INTERFACE 1
#define RQT_SETUP_RECIPIENT_ENDPOINT 2
#define RQT_SETUP_RECIPIENT_OTHER 3
/* Endpoint descriptor bmAttributes */
#define ENDPOINT_TYPE(ep_attrib) ((ep_attrib) & 0x03)
#define ENDPOINT_TYPE_CONTROL 0
#define ENDPOINT_TYPE_ISOCHRONOUS 1
#define ENDPOINT_TYPE_BULK 2
#define ENDPOINT_TYPE_INTERRUPT 3
void dissect_usb_descriptor_header(proto_tree *tree, tvbuff_t *tvb, int offset);
void dissect_usb_endpoint_address(proto_tree *tree, tvbuff_t *tvb, int offset);
#endif
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