/*

 * this is from the linux kernel scsi_eh.h

 */

#ifndef _SCSI_SCSI_H

#define _SCSI_SCSI_H

#include <stdint.h>

/*

 * This is a slightly modified SCSI sense "descriptor" format header.

 * The addition is to allow the 0x70 and 0x71 response codes. The idea

 * is to place the salient data from either "fixed" or "descriptor" sense

 * format into one structure to ease application processing.

 *

 * The original sense buffer should be kept around for those cases

 * in which more information is required (e.g. the LBA of a MEDIUM ERROR).

 */

struct scsi_sense_hdr {		/* See SPC-3 section 4.5 */

	uint8_t response_code;	/* permit: 0x0, 0x70, 0x71, 0x72, 0x73 */

	uint8_t sense_key;

	uint8_t asc;

	uint8_t ascq;

	uint8_t byte4;

	uint8_t byte5;

	uint8_t byte6;

	uint8_t additional_length;	/* always 0 for fixed sense format */

};

static inline int scsi_sense_valid(struct scsi_sense_hdr *sshdr)

{

	if (!sshdr)

		return 0;

	return (sshdr->response_code & 0x70) == 0x70;

}

extern int scsi_normalize_sense(const uint8_t *sense_buffer, int sb_len,

				struct scsi_sense_hdr *sshdr);

#endif