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/*
* Copyright (C) 2007 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);
}
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