[thirdparty/mdadm.git] / sg_io.c

/*
 * Copyright (C) 2007-2008 Intel Corporation
 *
 * 	Retrieve drive serial numbers for scsi disks
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope 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 St - Fifth Floor, Boston, MA 02110-1301 USA.
 */
#include <string.h>
#include <scsi/scsi.h>
#include <scsi/sg.h>
#include <sys/ioctl.h>

int scsi_get_serial(int fd, void *buf, size_t buf_len)
{
	unsigned char inq_cmd[] = {INQUIRY, 1, 0x80, 0, buf_len, 0};
	unsigned char sense[32];
	struct sg_io_hdr io_hdr;

	memset(&io_hdr, 0, sizeof(io_hdr));
	io_hdr.interface_id = 'S';
	io_hdr.cmdp = inq_cmd;
	io_hdr.cmd_len = sizeof(inq_cmd);
	io_hdr.dxferp = buf;
	io_hdr.dxfer_len = buf_len;
	io_hdr.dxfer_direction = SG_DXFER_FROM_DEV;
	io_hdr.sbp = sense;
	io_hdr.mx_sb_len = sizeof(sense);
	io_hdr.timeout = 5000;

	return ioctl(fd, SG_IO, &io_hdr);
}
Commit	Line	Data
cdddbdbc	1	/*
a54d5262	2	* Copyright (C) 2007-2008 Intel Corporation
cdddbdbc DW	3	*
	4	* Retrieve drive serial numbers for scsi disks
	5	*
	6	* This program is free software; you can redistribute it and/or modify it
	7	* under the terms and conditions of the GNU General Public License,
	8	* version 2, as published by the Free Software Foundation.
	9	*
	10	* This program is distributed in the hope it will be useful, but WITHOUT
	11	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	12	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	13	* more details.
	14	*
	15	* You should have received a copy of the GNU General Public License along with
	16	* this program; if not, write to the Free Software Foundation, Inc.,
	17	* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
	18	*/
	19	#include <string.h>
	20	#include <scsi/scsi.h>
	21	#include <scsi/sg.h>
	22	#include <sys/ioctl.h>
	23
	24	int scsi_get_serial(int fd, void *buf, size_t buf_len)
	25	{
	26	unsigned char inq_cmd[] = {INQUIRY, 1, 0x80, 0, buf_len, 0};
	27	unsigned char sense[32];
	28	struct sg_io_hdr io_hdr;
	29
	30	memset(&io_hdr, 0, sizeof(io_hdr));
	31	io_hdr.interface_id = 'S';
	32	io_hdr.cmdp = inq_cmd;
	33	io_hdr.cmd_len = sizeof(inq_cmd);
	34	io_hdr.dxferp = buf;
	35	io_hdr.dxfer_len = buf_len;
	36	io_hdr.dxfer_direction = SG_DXFER_FROM_DEV;
	37	io_hdr.sbp = sense;
	38	io_hdr.mx_sb_len = sizeof(sense);
	39	io_hdr.timeout = 5000;
	40
	41	return ioctl(fd, SG_IO, &io_hdr);
	42	}