systemd/extras/scsi_id/scsi_id.h

/*
 * Copyright (C) IBM Corp. 2003
 *
 * 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, see <http://www.gnu.org/licenses/>.
 */

#define	MAX_PATH_LEN	512

/*
 * MAX_ATTR_LEN: maximum length of the result of reading a sysfs
 * attribute.
 */
#define	MAX_ATTR_LEN	256

/*
 * MAX_SERIAL_LEN: the maximum length of the serial number, including
 * added prefixes such as vendor and product (model) strings.
 */
#define	MAX_SERIAL_LEN	256

/*
 * MAX_BUFFER_LEN: maximum buffer size and line length used while reading
 * the config file.
 */
#define MAX_BUFFER_LEN	256

struct scsi_id_device {
	char vendor[9];
	char model[17];
	char revision[5];
	char type[33];
	char kernel[64];
	char serial[MAX_SERIAL_LEN];
	char serial_short[MAX_SERIAL_LEN];
	int use_sg;

        /* Always from page 0x80 e.g. 'B3G1P8500RWT' - may not be unique */
        char unit_serial_number[MAX_SERIAL_LEN];

        /* NULs if not set - otherwise hex encoding using lower-case e.g. '50014ee0016eb572' */
        char wwn[17];

        /* NULs if not set - otherwise hex encoding using lower-case e.g. '0xe00000d80000' */
        char wwn_vendor_extension[17];

	/* NULs if not set - otherwise decimal number */
	char tgpt_group[8];
};

extern int scsi_std_inquiry(struct udev *udev, struct scsi_id_device *dev_scsi, const char *devname);
extern int scsi_get_serial (struct udev *udev, struct scsi_id_device *dev_scsi, const char *devname,
			    int page_code, int len);

/*
 * Page code values.
 */
enum page_code {
		PAGE_83_PRE_SPC3 = -0x83,
		PAGE_UNSPECIFIED = 0x00,
		PAGE_80		 = 0x80,
		PAGE_83		 = 0x83,
};