189 lines
6.4 KiB
C
189 lines
6.4 KiB
C
/*
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* Copyright (c) 2006-2018 Douglas Gilbert.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <unistd.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <string.h>
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#include <errno.h>
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#include <sys/ioctl.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include "sg_lib.h"
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#include "sg_io_linux.h"
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/* This program performs a ATA PASS-THROUGH (16) SCSI command in order
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to perform an ATA SMART/READ DATA command. See http://www.t10.org
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SAT draft at time of writing: sat-r08.pdf
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Invocation: sg_sat_smart_rd_data [-v] [-V] <device>
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*/
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#define SAT_ATA_PASS_THROUGH16 0x85
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#define SAT_ATA_PASS_THROUGH16_LEN 16
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#define SAT_ATA_RETURN_DESC 9 /* ATA Return (sense) Descriptor */
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#define ATA_SMART 0xb0
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#define ATA_SMART_READ_DATA 0xd0
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#define SMART_READ_DATA_RESPONSE_LEN 512
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#define EBUFF_SZ 256
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static char * version_str = "1.05 20181207";
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int main(int argc, char * argv[])
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{
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int sg_fd, k, ok;
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uint8_t apt_cdb[SAT_ATA_PASS_THROUGH16_LEN] =
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{SAT_ATA_PASS_THROUGH16, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0};
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sg_io_hdr_t io_hdr;
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char * file_name = 0;
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char ebuff[EBUFF_SZ];
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uint8_t inBuff[SMART_READ_DATA_RESPONSE_LEN];
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uint8_t sense_buffer[32];
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int verbose = 0;
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int extend = 0;
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int chk_cond = 0; /* set to 1 to read register(s) back */
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int protocol = 4; /* PIO data-in */
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int t_dir = 1; /* 0 -> to device, 1 -> from device */
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int byte_block = 1; /* 0 -> bytes, 1 -> 512 byte blocks */
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int t_length = 2; /* 0 -> no data transferred, 2 -> sector count */
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const uint8_t * bp = NULL;
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for (k = 1; k < argc; ++k) {
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if (0 == strcmp(argv[k], "-v"))
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++verbose;
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else if (0 == strcmp(argv[k], "-vv"))
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verbose += 2;
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else if (0 == strcmp(argv[k], "-vvv"))
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verbose += 3;
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else if (0 == strcmp(argv[k], "-V")) {
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fprintf(stderr, "version: %s\n", version_str);
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exit(0);
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} else if (*argv[k] == '-') {
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printf("Unrecognized switch: %s\n", argv[k]);
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file_name = 0;
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break;
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}
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else if (0 == file_name)
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file_name = argv[k];
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else {
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printf("too many arguments\n");
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file_name = 0;
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break;
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}
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}
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if (0 == file_name) {
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printf("Usage: 'sg_sat_smart_rd_data [-v] [-V] <device>'\n");
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return 1;
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}
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if ((sg_fd = open(file_name, O_RDWR)) < 0) {
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snprintf(ebuff, EBUFF_SZ,
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"sg_sat_smart_rd_data: error opening file: %s", file_name);
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perror(ebuff);
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return 1;
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}
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/* Prepare ATA PASS-THROUGH COMMAND (16) command */
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apt_cdb[4] = ATA_SMART_READ_DATA; /* feature (7:0) */
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apt_cdb[6] = 1; /* number of block (sector count) */
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apt_cdb[10] = 0x4f; /* lba_mid (7:0) */
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apt_cdb[12] = 0xc2; /* lba_high (7:0) */
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apt_cdb[14] = ATA_SMART;
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apt_cdb[1] = (protocol << 1) | extend;
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apt_cdb[2] = (chk_cond << 5) | (t_dir << 3) | (byte_block << 2) |
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t_length;
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if (verbose) {
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fprintf(stderr, " ata pass through(16) cdb: ");
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for (k = 0; k < SAT_ATA_PASS_THROUGH16_LEN; ++k)
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fprintf(stderr, "%02x ", apt_cdb[k]);
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fprintf(stderr, "\n");
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}
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memset(&io_hdr, 0, sizeof(sg_io_hdr_t));
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io_hdr.interface_id = 'S';
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io_hdr.cmd_len = sizeof(apt_cdb);
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/* io_hdr.iovec_count = 0; */ /* memset takes care of this */
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io_hdr.mx_sb_len = sizeof(sense_buffer);
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io_hdr.dxfer_direction = SG_DXFER_FROM_DEV;
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io_hdr.dxfer_len = SMART_READ_DATA_RESPONSE_LEN;
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io_hdr.dxferp = inBuff;
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io_hdr.cmdp = apt_cdb;
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io_hdr.sbp = sense_buffer;
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io_hdr.timeout = 20000; /* 20000 millisecs == 20 seconds */
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/* io_hdr.flags = 0; */ /* take defaults: indirect IO, etc */
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/* io_hdr.pack_id = 0; */
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/* io_hdr.usr_ptr = NULL; */
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if (ioctl(sg_fd, SG_IO, &io_hdr) < 0) {
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perror("sg_sat_smart_rd_data: SG_IO ioctl error");
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close(sg_fd);
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return 1;
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}
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/* now for the error processing */
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ok = 0;
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switch (sg_err_category3(&io_hdr)) {
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case SG_LIB_CAT_CLEAN:
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ok = 1;
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break;
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case SG_LIB_CAT_RECOVERED:
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bp = sg_scsi_sense_desc_find(sense_buffer, sizeof(sense_buffer),
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SAT_ATA_RETURN_DESC);
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if (NULL == bp) {
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if (verbose > 1)
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printf("ATA Return Descriptor expected in sense but not "
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"found\n");
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sg_chk_n_print3("ATA_16 command error", &io_hdr, 1);
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} else if (verbose)
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sg_chk_n_print3("ATA Return Descriptor", &io_hdr, 1);
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if (bp && bp[3])
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printf("error=0x%x, status=0x%x\n", bp[3], bp[13]);
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else
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ok = 1;
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break;
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default: /* won't bother decoding other categories */
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sg_chk_n_print3("ATA_16 command error", &io_hdr, 1);
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break;
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}
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if (ok) { /* output result if it is available */
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printf("Response:\n");
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dWordHex((const unsigned short *)inBuff, 256, 0,
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sg_is_big_endian());
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}
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close(sg_fd);
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return 0;
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}
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