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/*
* Copyright (c) 2006 Douglas Gilbert.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#include <unistd.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "sg_lib.h"
#include "sg_io_linux.h"
/* This program performs a ATA PASS-THROUGH (16) SCSI command in order
to perform an ATA SET FEATURES command. See http://www.t10.org
SAT draft at time of writing: sat-r08a.pdf
Invocation:
sg_sat_set_features [-c <n>] [-f <n>] [-l <n>] [-v] [-V] <device>
*/
#define SAT_ATA_PASS_THROUGH16 0x85
#define SAT_ATA_PASS_THROUGH16_LEN 16
#define SAT_STATUS_RETURN_DESC 9 /* ATA status return (sense) descriptor */
#define ATA_SET_FEATURES 0xef
#define EBUFF_SZ 256
static char * version_str = "1.01 20061014";
int main(int argc, char * argv[])
{
int sg_fd, k;
unsigned char aptCmdBlk[SAT_ATA_PASS_THROUGH16_LEN] =
{SAT_ATA_PASS_THROUGH16, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0};
sg_io_hdr_t io_hdr;
char * file_name = 0;
char ebuff[EBUFF_SZ];
unsigned char sense_buffer[64];
int count = 0;
int feature = 0;
int lba = 0;
int verbose = 0;
int extend = 0;
int chk_cond = 0; /* set to 1 to read register(s) back */
int protocol = 3; /* non-dat data-in */
int t_dir = 1; /* 0 -> to device, 1 -> from device */
int byte_block = 1; /* 0 -> bytes, 1 -> 512 byte blocks */
int t_length = 0; /* 0 -> no data transferred, 2 -> sector count */
const unsigned char * ucp = NULL;
for (k = 1; k < argc; ++k) {
if (0 == strncmp(argv[k], "-c", 2)) {
count = sg_get_num(argv[++k]);
if ((count < 0) || (count > 255)) {
fprintf(stderr, "bad argument for '-c'\n");
file_name = 0;
break;
}
} else if (0 == strncmp(argv[k], "-f", 2)) {
feature = sg_get_num(argv[++k]);
if ((feature < 0) || (feature > 255)) {
fprintf(stderr, "bad argument for '-f'\n");
file_name = 0;
break;
}
} else if (0 == strncmp(argv[k], "-l", 2)) {
lba = sg_get_num(argv[++k]);
if (lba < 0) {
fprintf(stderr, "bad argument for '-l'\n");
file_name = 0;
break;
}
} else if (0 == strcmp(argv[k], "-v"))
++verbose;
else if (0 == strcmp(argv[k], "-vv"))
verbose += 2;
else if (0 == strcmp(argv[k], "-V")) {
fprintf(stderr, "version: %s\n", version_str);
exit(0);
} else if (*argv[k] == '-') {
printf("Unrecognized switch: %s\n", argv[k]);
file_name = 0;
break;
} else if (0 == file_name)
file_name = argv[k];
else {
fprintf(stderr, "too many arguments\n");
file_name = 0;
break;
}
}
if (0 == file_name) {
fprintf(stderr, "Usage: 'sg_sat_set_features [-c <n>] [-f <n>] "
"[-l <n>] [-v] [-V] <device>'\n");
return 1;
}
if ((sg_fd = open(file_name, O_RDWR)) < 0) {
snprintf(ebuff, EBUFF_SZ,
"sg_sat_set_features: error opening file: %s", file_name);
perror(ebuff);
return 1;
}
/* Prepare ATA PASS-THROUGH COMMAND (16) command */
aptCmdBlk[14] = ATA_SET_FEATURES;
aptCmdBlk[1] = (protocol << 1) | extend;
aptCmdBlk[2] = (chk_cond << 5) | (t_dir << 3) |
(byte_block << 2) | t_length;
aptCmdBlk[4] = feature;
aptCmdBlk[6] = count;
aptCmdBlk[8] = lba & 0xff;
aptCmdBlk[10] = (lba >> 8) & 0xff;
aptCmdBlk[12] = (lba >> 16) & 0xff;
if (verbose) {
fprintf(stderr, " ata pass through(16) cdb: ");
for (k = 0; k < SAT_ATA_PASS_THROUGH16_LEN; ++k)
fprintf(stderr, "%02x ", aptCmdBlk[k]);
fprintf(stderr, "\n");
}
memset(&io_hdr, 0, sizeof(sg_io_hdr_t));
io_hdr.interface_id = 'S';
io_hdr.cmd_len = sizeof(aptCmdBlk);
/* io_hdr.iovec_count = 0; */ /* memset takes care of this */
io_hdr.mx_sb_len = sizeof(sense_buffer);
io_hdr.dxfer_direction = SG_DXFER_NONE;
io_hdr.dxfer_len = 0;
io_hdr.dxferp = NULL;
io_hdr.cmdp = aptCmdBlk;
io_hdr.sbp = sense_buffer;
io_hdr.timeout = 20000; /* 20000 millisecs == 20 seconds */
/* io_hdr.flags = 0; */ /* take defaults: indirect IO, etc */
/* io_hdr.pack_id = 0; */
/* io_hdr.usr_ptr = NULL; */
if (ioctl(sg_fd, SG_IO, &io_hdr) < 0) {
perror("sg_sat_set_features: SG_IO ioctl error");
close(sg_fd);
return 1;
}
/* error processing: N.B. expect check condition, no sense ... !! */
switch (sg_err_category3(&io_hdr)) {
case SG_LIB_CAT_CLEAN:
break;
case SG_LIB_CAT_RECOVERED:
case SG_LIB_CAT_NO_SENSE:
/* XXX: Until the spec decides which one to go with. 20060607 */
ucp = sg_scsi_sense_desc_find(sense_buffer, sizeof(sense_buffer),
SAT_STATUS_RETURN_DESC);
if (NULL == ucp)
sg_chk_n_print3("ATA_16 command error", &io_hdr, 1);
else if (verbose)
sg_chk_n_print3("status return descriptor", &io_hdr, 1);
if (ucp && ucp[3]) {
if (ucp[3] & 0x4)
printf("error in returned FIS: aborted command\n");
else
printf("error=0x%x, status=0x%x\n", ucp[3], ucp[13]);
}
break;
default:
fprintf(stderr, "unexpected SCSI sense category\n");
ucp = sg_scsi_sense_desc_find(sense_buffer, sizeof(sense_buffer),
SAT_STATUS_RETURN_DESC);
if (NULL == ucp)
sg_chk_n_print3("ATA_16 command error", &io_hdr, 1);
else if (verbose)
sg_chk_n_print3("status return descriptor, as expected",
&io_hdr, 1);
if (ucp && ucp[3]) {
if (ucp[3] & 0x4)
printf("error in returned FIS: aborted command\n");
else
printf("error=0x%x, status=0x%x\n", ucp[3], ucp[13]);
}
break;
}
close(sg_fd);
return 0;
}
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