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/* $OpenBSD: usbpcap.h,v 1.1 2018/02/03 13:37:37 mpi Exp $ */
/*
* Copyright (c) 2018 Martin Pieuchot
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _USBCAP_H_
#define _USBCAP_H_
/*
* Common DLT_USBPCAP header.
*/
struct usbpcap_pkt_hdr {
uint16_t uph_hlen; /* header length */
uint64_t uph_id; /* request ID */
uint32_t uph_status; /* USB status code */
uint16_t uph_function; /* stack function ID */
uint8_t uph_info; /* info flags */
#define USBPCAP_INFO_DIRECTION_IN (1 << 0)/* from Device to Host */
uint16_t uph_bus; /* bus number */
uint16_t uph_devaddr; /* device address */
uint8_t uph_epaddr; /* copy of bEndpointAddress */
uint8_t uph_xfertype; /* transfer type */
#define USBPCAP_TRANSFER_ISOCHRONOUS 0
#define USBPCAP_TRANSFER_INTERRUPT 1
#define USBPCAP_TRANSFER_CONTROL 2
#define USBPCAP_TRANSFER_BULK 3
uint32_t uph_dlen; /* data length */
} __attribute__((packed));
/*
* Header used when dumping control transfers.
*/
struct usbpcap_ctl_hdr {
struct usbpcap_pkt_hdr uch_hdr;
uint8_t uch_stage;
#define USBPCAP_CONTROL_STAGE_SETUP 0
#define USBPCAP_CONTROL_STAGE_DATA 1
#define USBPCAP_CONTROL_STAGE_STATUS 2
} __attribute__((packed));
#endif /* _USBCAP_H_ */
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