src/udev/ata_id/ata_id.c

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * ata_id - reads product/serial number from ATA drives
   4  *
   5  * Copyright © 2005-2008 Kay Sievers <kay@vrfy.org>
   6  * Copyright © 2009-2010 David Zeuthen <zeuthen@gmail.com>
   7  *
   8  */
   9
  10 #include <ctype.h>
  11 #include <errno.h>
  12 #include <fcntl.h>
  13 #include <getopt.h>
  14 #include <linux/bsg.h>
  15 #include <linux/hdreg.h>
  16 #include <scsi/scsi.h>
  17 #include <scsi/scsi_ioctl.h>
  18 #include <scsi/sg.h>
  19 #include <stdint.h>
  20 #include <stdio.h>
  21 #include <stdlib.h>
  22 #include <string.h>
  23 #include <sys/ioctl.h>
  24 #include <sys/stat.h>
  25 #include <sys/types.h>
  26 #include <unistd.h>
  27
  28 #include "libudev.h"
  29
  30 #include "fd-util.h"
  31 #include "libudev-private.h"
  32 #include "log.h"
  33 #include "udev-util.h"
  34
  35 #define COMMAND_TIMEOUT_MSEC (30 * 1000)
  36
  37 static int disk_scsi_inquiry_command(int      fd,
  38                                      void    *buf,
  39                                      size_t   buf_len)
  40 {
  41         uint8_t cdb[6] = {
  42                 /*
  43                  * INQUIRY, see SPC-4 section 6.4
  44                  */
  45                 [0] = 0x12,                /* OPERATION CODE: INQUIRY */
  46                 [3] = (buf_len >> 8),      /* ALLOCATION LENGTH */
  47                 [4] = (buf_len & 0xff),
  48         };
  49         uint8_t sense[32] = {};
  50         struct sg_io_v4 io_v4 = {
  51                 .guard = 'Q',
  52                 .protocol = BSG_PROTOCOL_SCSI,
  53                 .subprotocol = BSG_SUB_PROTOCOL_SCSI_CMD,
  54                 .request_len = sizeof(cdb),
  55                 .request = (uintptr_t) cdb,
  56                 .max_response_len = sizeof(sense),
  57                 .response = (uintptr_t) sense,
  58                 .din_xfer_len = buf_len,
  59                 .din_xferp = (uintptr_t) buf,
  60                 .timeout = COMMAND_TIMEOUT_MSEC,
  61         };
  62         int ret;
  63
  64         ret = ioctl(fd, SG_IO, &io_v4);
  65         if (ret != 0) {
  66                 /* could be that the driver doesn't do version 4, try version 3 */
  67                 if (errno == EINVAL) {
  68                         struct sg_io_hdr io_hdr = {
  69                                 .interface_id = 'S',
  70                                 .cmdp = (unsigned char*) cdb,
  71                                 .cmd_len = sizeof (cdb),
  72                                 .dxferp = buf,
  73                                 .dxfer_len = buf_len,
  74                                 .sbp = sense,
  75                                 .mx_sb_len = sizeof(sense),
  76                                 .dxfer_direction = SG_DXFER_FROM_DEV,
  77                                 .timeout = COMMAND_TIMEOUT_MSEC,
  78                         };
  79
  80                         ret = ioctl(fd, SG_IO, &io_hdr);
  81                         if (ret != 0)
  82                                 return ret;
  83
  84                         /* even if the ioctl succeeds, we need to check the return value */
  85                         if (!(io_hdr.status == 0 &&
  86                               io_hdr.host_status == 0 &&
  87                               io_hdr.driver_status == 0)) {
  88                                 errno = EIO;
  89                                 return -1;
  90                         }
  91                 } else
  92                         return ret;
  93         }
  94
  95         /* even if the ioctl succeeds, we need to check the return value */
  96         if (!(io_v4.device_status == 0 &&
  97               io_v4.transport_status == 0 &&
  98               io_v4.driver_status == 0)) {
  99                 errno = EIO;
 100                 return -1;
 101         }
 102
 103         return 0;
 104 }
 105
 106 static int disk_identify_command(int          fd,
 107                                  void         *buf,
 108                                  size_t          buf_len)
 109 {
 110         uint8_t cdb[12] = {
 111                 /*
 112                  * ATA Pass-Through 12 byte command, as described in
 113                  *
 114                  *  T10 04-262r8 ATA Command Pass-Through
 115                  *
 116                  * from http://www.t10.org/ftp/t10/document.04/04-262r8.pdf
 117                  */
 118                 [0] = 0xa1,     /* OPERATION CODE: 12 byte pass through */
 119                 [1] = 4 << 1,   /* PROTOCOL: PIO Data-in */
 120                 [2] = 0x2e,     /* OFF_LINE=0, CK_COND=1, T_DIR=1, BYT_BLOK=1, T_LENGTH=2 */
 121                 [3] = 0,        /* FEATURES */
 122                 [4] = 1,        /* SECTORS */
 123                 [5] = 0,        /* LBA LOW */
 124                 [6] = 0,        /* LBA MID */
 125                 [7] = 0,        /* LBA HIGH */
 126                 [8] = 0 & 0x4F, /* SELECT */
 127                 [9] = 0xEC,     /* Command: ATA IDENTIFY DEVICE */
 128         };
 129         uint8_t sense[32] = {};
 130         uint8_t *desc = sense + 8;
 131         struct sg_io_v4 io_v4 = {
 132                 .guard = 'Q',
 133                 .protocol = BSG_PROTOCOL_SCSI,
 134                 .subprotocol = BSG_SUB_PROTOCOL_SCSI_CMD,
 135                 .request_len = sizeof(cdb),
 136                 .request = (uintptr_t) cdb,
 137                 .max_response_len = sizeof(sense),
 138                 .response = (uintptr_t) sense,
 139                 .din_xfer_len = buf_len,
 140                 .din_xferp = (uintptr_t) buf,
 141                 .timeout = COMMAND_TIMEOUT_MSEC,
 142         };
 143         int ret;
 144
 145         ret = ioctl(fd, SG_IO, &io_v4);
 146         if (ret != 0) {
 147                 /* could be that the driver doesn't do version 4, try version 3 */
 148                 if (errno == EINVAL) {
 149                         struct sg_io_hdr io_hdr = {
 150                                 .interface_id = 'S',
 151                                 .cmdp = (unsigned char*) cdb,
 152                                 .cmd_len = sizeof (cdb),
 153                                 .dxferp = buf,
 154                                 .dxfer_len = buf_len,
 155                                 .sbp = sense,
 156                                 .mx_sb_len = sizeof (sense),
 157                                 .dxfer_direction = SG_DXFER_FROM_DEV,
 158                                 .timeout = COMMAND_TIMEOUT_MSEC,
 159                         };
 160
 161                         ret = ioctl(fd, SG_IO, &io_hdr);
 162                         if (ret != 0)
 163                                 return ret;
 164                 } else
 165                         return ret;
 166         }
 167
 168         if (!(sense[0] == 0x72 && desc[0] == 0x9 && desc[1] == 0x0c)) {
 169                 errno = EIO;
 170                 return -1;
 171         }
 172
 173         return 0;
 174 }
 175
 176 static int disk_identify_packet_device_command(int          fd,
 177                                                void         *buf,
 178                                                size_t          buf_len)
 179 {
 180         uint8_t cdb[16] = {
 181                 /*
 182                  * ATA Pass-Through 16 byte command, as described in
 183                  *
 184                  *  T10 04-262r8 ATA Command Pass-Through
 185                  *
 186                  * from http://www.t10.org/ftp/t10/document.04/04-262r8.pdf
 187                  */
 188                 [0] = 0x85,   /* OPERATION CODE: 16 byte pass through */
 189                 [1] = 4 << 1, /* PROTOCOL: PIO Data-in */
 190                 [2] = 0x2e,   /* OFF_LINE=0, CK_COND=1, T_DIR=1, BYT_BLOK=1, T_LENGTH=2 */
 191                 [3] = 0,      /* FEATURES */
 192                 [4] = 0,      /* FEATURES */
 193                 [5] = 0,      /* SECTORS */
 194                 [6] = 1,      /* SECTORS */
 195                 [7] = 0,      /* LBA LOW */
 196                 [8] = 0,      /* LBA LOW */
 197                 [9] = 0,      /* LBA MID */
 198                 [10] = 0,     /* LBA MID */
 199                 [11] = 0,     /* LBA HIGH */
 200                 [12] = 0,     /* LBA HIGH */
 201                 [13] = 0,     /* DEVICE */
 202                 [14] = 0xA1,  /* Command: ATA IDENTIFY PACKET DEVICE */
 203                 [15] = 0,     /* CONTROL */
 204         };
 205         uint8_t sense[32] = {};
 206         uint8_t *desc = sense + 8;
 207         struct sg_io_v4 io_v4 = {
 208                 .guard = 'Q',
 209                 .protocol = BSG_PROTOCOL_SCSI,
 210                 .subprotocol = BSG_SUB_PROTOCOL_SCSI_CMD,
 211                 .request_len = sizeof (cdb),
 212                 .request = (uintptr_t) cdb,
 213                 .max_response_len = sizeof (sense),
 214                 .response = (uintptr_t) sense,
 215                 .din_xfer_len = buf_len,
 216                 .din_xferp = (uintptr_t) buf,
 217                 .timeout = COMMAND_TIMEOUT_MSEC,
 218         };
 219         int ret;
 220
 221         ret = ioctl(fd, SG_IO, &io_v4);
 222         if (ret != 0) {
 223                 /* could be that the driver doesn't do version 4, try version 3 */
 224                 if (errno == EINVAL) {
 225                         struct sg_io_hdr io_hdr = {
 226                                 .interface_id = 'S',
 227                                 .cmdp = (unsigned char*) cdb,
 228                                 .cmd_len = sizeof (cdb),
 229                                 .dxferp = buf,
 230                                 .dxfer_len = buf_len,
 231                                 .sbp = sense,
 232                                 .mx_sb_len = sizeof (sense),
 233                                 .dxfer_direction = SG_DXFER_FROM_DEV,
 234                                 .timeout = COMMAND_TIMEOUT_MSEC,
 235                         };
 236
 237                         ret = ioctl(fd, SG_IO, &io_hdr);
 238                         if (ret != 0)
 239                                 return ret;
 240                 } else
 241                         return ret;
 242         }
 243
 244         if (!(sense[0] == 0x72 && desc[0] == 0x9 && desc[1] == 0x0c)) {
 245                 errno = EIO;
 246                 return -1;
 247         }
 248
 249         return 0;
 250 }
 251
 252 /**
 253  * disk_identify_get_string:
 254  * @identify: A block of IDENTIFY data
 255  * @offset_words: Offset of the string to get, in words.
 256  * @dest: Destination buffer for the string.
 257  * @dest_len: Length of destination buffer, in bytes.
 258  *
 259  * Copies the ATA string from @identify located at @offset_words into @dest.
 260  */
 261 static void disk_identify_get_string(uint8_t identify[512],
 262                                      unsigned int offset_words,
 263                                      char *dest,
 264                                      size_t dest_len)
 265 {
 266         unsigned int c1;
 267         unsigned int c2;
 268
 269         while (dest_len > 0) {
 270                 c1 = identify[offset_words * 2 + 1];
 271                 c2 = identify[offset_words * 2];
 272                 *dest = c1;
 273                 dest++;
 274                 *dest = c2;
 275                 dest++;
 276                 offset_words++;
 277                 dest_len -= 2;
 278         }
 279 }
 280
 281 static void disk_identify_fixup_string(uint8_t identify[512],
 282                                        unsigned int offset_words,
 283                                        size_t len)
 284 {
 285         disk_identify_get_string(identify, offset_words,
 286                                  (char *) identify + offset_words * 2, len);
 287 }
 288
 289 static void disk_identify_fixup_uint16 (uint8_t identify[512], unsigned int offset_words)
 290 {
 291         uint16_t *p;
 292
 293         p = (uint16_t *) identify;
 294         p[offset_words] = le16toh (p[offset_words]);
 295 }
 296
 297 /**
 298  * disk_identify:
 299  * @udev: The libudev context.
 300  * @fd: File descriptor for the block device.
 301  * @out_identify: Return location for IDENTIFY data.
 302  * @out_is_packet_device: Return location for whether returned data is from a IDENTIFY PACKET DEVICE.
 303  *
 304  * Sends the IDENTIFY DEVICE or IDENTIFY PACKET DEVICE command to the
 305  * device represented by @fd. If successful, then the result will be
 306  * copied into @out_identify and @out_is_packet_device.
 307  *
 308  * This routine is based on code from libatasmart, Copyright © 2008
 309  * Lennart Poettering, LGPL v2.1.
 310  *
 311  * Returns: 0 if the data was successfully obtained, otherwise
 312  * non-zero with errno set.
 313  */
 314 static int disk_identify(struct udev *udev,
 315                          int fd,
 316                          uint8_t out_identify[512],
 317                          int *out_is_packet_device)
 318 {
 319         int ret;
 320         uint8_t inquiry_buf[36];
 321         int peripheral_device_type;
 322         int all_nul_bytes;
 323         int n;
 324         int is_packet_device = 0;
 325
 326         /* init results */
 327         memzero(out_identify, 512);
 328
 329         /* If we were to use ATA PASS_THROUGH (12) on an ATAPI device
 330          * we could accidentally blank media. This is because MMC's BLANK
 331          * command has the same op-code (0x61).
 332          *
 333          * To prevent this from happening we bail out if the device
 334          * isn't a Direct Access Block Device, e.g. SCSI type 0x00
 335          * (CD/DVD devices are type 0x05). So we send a SCSI INQUIRY
 336          * command first... libata is handling this via its SCSI
 337          * emulation layer.
 338          *
 339          * This also ensures that we're actually dealing with a device
 340          * that understands SCSI commands.
 341          *
 342          * (Yes, it is a bit perverse that we're tunneling the ATA
 343          * command through SCSI and relying on the ATA driver
 344          * emulating SCSI well-enough...)
 345          *
 346          * (See commit 160b069c25690bfb0c785994c7c3710289179107 for
 347          * the original bug-fix and see http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=556635
 348          * for the original bug-report.)
 349          */
 350         ret = disk_scsi_inquiry_command (fd, inquiry_buf, sizeof (inquiry_buf));
 351         if (ret != 0)
 352                 goto out;
 353
 354         /* SPC-4, section 6.4.2: Standard INQUIRY data */
 355         peripheral_device_type = inquiry_buf[0] & 0x1f;
 356         if (peripheral_device_type == 0x05)
 357           {
 358             is_packet_device = 1;
 359             ret = disk_identify_packet_device_command(fd, out_identify, 512);
 360             goto check_nul_bytes;
 361           }
 362         if (peripheral_device_type != 0x00) {
 363                 ret = -1;
 364                 errno = EIO;
 365                 goto out;
 366         }
 367
 368         /* OK, now issue the IDENTIFY DEVICE command */
 369         ret = disk_identify_command(fd, out_identify, 512);
 370         if (ret != 0)
 371                 goto out;
 372
 373  check_nul_bytes:
 374          /* Check if IDENTIFY data is all NUL bytes - if so, bail */
 375         all_nul_bytes = 1;
 376         for (n = 0; n < 512; n++) {
 377                 if (out_identify[n] != '\0') {
 378                         all_nul_bytes = 0;
 379                         break;
 380                 }
 381         }
 382
 383         if (all_nul_bytes) {
 384                 ret = -1;
 385                 errno = EIO;
 386                 goto out;
 387         }
 388
 389 out:
 390         if (out_is_packet_device != NULL)
 391                 *out_is_packet_device = is_packet_device;
 392         return ret;
 393 }
 394
 395 int main(int argc, char *argv[]) {
 396         _cleanup_(udev_unrefp) struct udev *udev = NULL;
 397         struct hd_driveid id;
 398         union {
 399                 uint8_t  byte[512];
 400                 uint16_t wyde[256];
 401         } identify;
 402         char model[41];
 403         char model_enc[256];
 404         char serial[21];
 405         char revision[9];
 406         const char *node = NULL;
 407         int export = 0;
 408         _cleanup_close_ int fd = -1;
 409         uint16_t word;
 410         int is_packet_device = 0;
 411         static const struct option options[] = {
 412                 { "export", no_argument, NULL, 'x' },
 413                 { "help", no_argument, NULL, 'h' },
 414                 {}
 415         };
 416
 417         log_set_target(LOG_TARGET_AUTO);
 418         udev_parse_config();
 419         log_parse_environment();
 420         log_open();
 421
 422         udev = udev_new();
 423         if (udev == NULL)
 424                 return 0;
 425
 426         for (;;) {
 427                 int option;
 428
 429                 option = getopt_long(argc, argv, "xh", options, NULL);
 430                 if (option == -1)
 431                         break;
 432
 433                 switch (option) {
 434                 case 'x':
 435                         export = 1;
 436                         break;
 437                 case 'h':
 438                         printf("Usage: ata_id [--export] [--help] <device>\n"
 439                                "  -x,--export    print values as environment keys\n"
 440                                "  -h,--help      print this help text\n\n");
 441                         return 0;
 442                 }
 443         }
 444
 445         node = argv[optind];
 446         if (node == NULL) {
 447                 log_error("no node specified");
 448                 return 1;
 449         }
 450
 451         fd = open(node, O_RDONLY|O_NONBLOCK|O_CLOEXEC);
 452         if (fd < 0) {
 453                 log_error("unable to open '%s'", node);
 454                 return 1;
 455         }
 456
 457         if (disk_identify(udev, fd, identify.byte, &is_packet_device) == 0) {
 458                 /*
 459                  * fix up only the fields from the IDENTIFY data that we are going to
 460                  * use and copy it into the hd_driveid struct for convenience
 461                  */
 462                 disk_identify_fixup_string(identify.byte,  10, 20); /* serial */
 463                 disk_identify_fixup_string(identify.byte,  23,  8); /* fwrev */
 464                 disk_identify_fixup_string(identify.byte,  27, 40); /* model */
 465                 disk_identify_fixup_uint16(identify.byte,  0);      /* configuration */
 466                 disk_identify_fixup_uint16(identify.byte,  75);     /* queue depth */
 467                 disk_identify_fixup_uint16(identify.byte,  76);     /* SATA capabilities */
 468                 disk_identify_fixup_uint16(identify.byte,  82);     /* command set supported */
 469                 disk_identify_fixup_uint16(identify.byte,  83);     /* command set supported */
 470                 disk_identify_fixup_uint16(identify.byte,  84);     /* command set supported */
 471                 disk_identify_fixup_uint16(identify.byte,  85);     /* command set supported */
 472                 disk_identify_fixup_uint16(identify.byte,  86);     /* command set supported */
 473                 disk_identify_fixup_uint16(identify.byte,  87);     /* command set supported */
 474                 disk_identify_fixup_uint16(identify.byte,  89);     /* time required for SECURITY ERASE UNIT */
 475                 disk_identify_fixup_uint16(identify.byte,  90);     /* time required for enhanced SECURITY ERASE UNIT */
 476                 disk_identify_fixup_uint16(identify.byte,  91);     /* current APM values */
 477                 disk_identify_fixup_uint16(identify.byte,  94);     /* current AAM value */
 478                 disk_identify_fixup_uint16(identify.byte, 108);     /* WWN */
 479                 disk_identify_fixup_uint16(identify.byte, 109);     /* WWN */
 480                 disk_identify_fixup_uint16(identify.byte, 110);     /* WWN */
 481                 disk_identify_fixup_uint16(identify.byte, 111);     /* WWN */
 482                 disk_identify_fixup_uint16(identify.byte, 128);     /* device lock function */
 483                 disk_identify_fixup_uint16(identify.byte, 217);     /* nominal media rotation rate */
 484                 memcpy(&id, identify.byte, sizeof id);
 485         } else {
 486                 /* If this fails, then try HDIO_GET_IDENTITY */
 487                 if (ioctl(fd, HDIO_GET_IDENTITY, &id) != 0) {
 488                         log_debug_errno(errno, "HDIO_GET_IDENTITY failed for '%s': %m", node);
 489                         return 2;
 490                 }
 491         }
 492
 493         memcpy(model, id.model, 40);
 494         model[40] = '\0';
 495         udev_util_encode_string(model, model_enc, sizeof(model_enc));
 496         util_replace_whitespace((char *) id.model, model, 40);
 497         util_replace_chars(model, NULL);
 498         util_replace_whitespace((char *) id.serial_no, serial, 20);
 499         util_replace_chars(serial, NULL);
 500         util_replace_whitespace((char *) id.fw_rev, revision, 8);
 501         util_replace_chars(revision, NULL);
 502
 503         if (export) {
 504                 /* Set this to convey the disk speaks the ATA protocol */
 505                 printf("ID_ATA=1\n");
 506
 507                 if ((id.config >> 8) & 0x80) {
 508                         /* This is an ATAPI device */
 509                         switch ((id.config >> 8) & 0x1f) {
 510                         case 0:
 511                                 printf("ID_TYPE=cd\n");
 512                                 break;
 513                         case 1:
 514                                 printf("ID_TYPE=tape\n");
 515                                 break;
 516                         case 5:
 517                                 printf("ID_TYPE=cd\n");
 518                                 break;
 519                         case 7:
 520                                 printf("ID_TYPE=optical\n");
 521                                 break;
 522                         default:
 523                                 printf("ID_TYPE=generic\n");
 524                                 break;
 525                         }
 526                 } else {
 527                         printf("ID_TYPE=disk\n");
 528                 }
 529                 printf("ID_BUS=ata\n");
 530                 printf("ID_MODEL=%s\n", model);
 531                 printf("ID_MODEL_ENC=%s\n", model_enc);
 532                 printf("ID_REVISION=%s\n", revision);
 533                 if (serial[0] != '\0') {
 534                         printf("ID_SERIAL=%s_%s\n", model, serial);
 535                         printf("ID_SERIAL_SHORT=%s\n", serial);
 536                 } else {
 537                         printf("ID_SERIAL=%s\n", model);
 538                 }
 539
 540                 if (id.command_set_1 & (1<<5)) {
 541                         printf("ID_ATA_WRITE_CACHE=1\n");
 542                         printf("ID_ATA_WRITE_CACHE_ENABLED=%d\n", (id.cfs_enable_1 & (1<<5)) ? 1 : 0);
 543                 }
 544                 if (id.command_set_1 & (1<<10)) {
 545                         printf("ID_ATA_FEATURE_SET_HPA=1\n");
 546                         printf("ID_ATA_FEATURE_SET_HPA_ENABLED=%d\n", (id.cfs_enable_1 & (1<<10)) ? 1 : 0);
 547
 548                         /*
 549                          * TODO: use the READ NATIVE MAX ADDRESS command to get the native max address
 550                          * so it is easy to check whether the protected area is in use.
 551                          */
 552                 }
 553                 if (id.command_set_1 & (1<<3)) {
 554                         printf("ID_ATA_FEATURE_SET_PM=1\n");
 555                         printf("ID_ATA_FEATURE_SET_PM_ENABLED=%d\n", (id.cfs_enable_1 & (1<<3)) ? 1 : 0);
 556                 }
 557                 if (id.command_set_1 & (1<<1)) {
 558                         printf("ID_ATA_FEATURE_SET_SECURITY=1\n");
 559                         printf("ID_ATA_FEATURE_SET_SECURITY_ENABLED=%d\n", (id.cfs_enable_1 & (1<<1)) ? 1 : 0);
 560                         printf("ID_ATA_FEATURE_SET_SECURITY_ERASE_UNIT_MIN=%d\n", id.trseuc * 2);
 561                         if ((id.cfs_enable_1 & (1<<1))) /* enabled */ {
 562                                 if (id.dlf & (1<<8))
 563                                         printf("ID_ATA_FEATURE_SET_SECURITY_LEVEL=maximum\n");
 564                                 else
 565                                         printf("ID_ATA_FEATURE_SET_SECURITY_LEVEL=high\n");
 566                         }
 567                         if (id.dlf & (1<<5))
 568                                 printf("ID_ATA_FEATURE_SET_SECURITY_ENHANCED_ERASE_UNIT_MIN=%d\n", id.trsEuc * 2);
 569                         if (id.dlf & (1<<4))
 570                                 printf("ID_ATA_FEATURE_SET_SECURITY_EXPIRE=1\n");
 571                         if (id.dlf & (1<<3))
 572                                 printf("ID_ATA_FEATURE_SET_SECURITY_FROZEN=1\n");
 573                         if (id.dlf & (1<<2))
 574                                 printf("ID_ATA_FEATURE_SET_SECURITY_LOCKED=1\n");
 575                 }
 576                 if (id.command_set_1 & (1<<0)) {
 577                         printf("ID_ATA_FEATURE_SET_SMART=1\n");
 578                         printf("ID_ATA_FEATURE_SET_SMART_ENABLED=%d\n", (id.cfs_enable_1 & (1<<0)) ? 1 : 0);
 579                 }
 580                 if (id.command_set_2 & (1<<9)) {
 581                         printf("ID_ATA_FEATURE_SET_AAM=1\n");
 582                         printf("ID_ATA_FEATURE_SET_AAM_ENABLED=%d\n", (id.cfs_enable_2 & (1<<9)) ? 1 : 0);
 583                         printf("ID_ATA_FEATURE_SET_AAM_VENDOR_RECOMMENDED_VALUE=%d\n", id.acoustic >> 8);
 584                         printf("ID_ATA_FEATURE_SET_AAM_CURRENT_VALUE=%d\n", id.acoustic & 0xff);
 585                 }
 586                 if (id.command_set_2 & (1<<5)) {
 587                         printf("ID_ATA_FEATURE_SET_PUIS=1\n");
 588                         printf("ID_ATA_FEATURE_SET_PUIS_ENABLED=%d\n", (id.cfs_enable_2 & (1<<5)) ? 1 : 0);
 589                 }
 590                 if (id.command_set_2 & (1<<3)) {
 591                         printf("ID_ATA_FEATURE_SET_APM=1\n");
 592                         printf("ID_ATA_FEATURE_SET_APM_ENABLED=%d\n", (id.cfs_enable_2 & (1<<3)) ? 1 : 0);
 593                         if ((id.cfs_enable_2 & (1<<3)))
 594                                 printf("ID_ATA_FEATURE_SET_APM_CURRENT_VALUE=%d\n", id.CurAPMvalues & 0xff);
 595                 }
 596                 if (id.command_set_2 & (1<<0))
 597                         printf("ID_ATA_DOWNLOAD_MICROCODE=1\n");
 598
 599                 /*
 600                  * Word 76 indicates the capabilities of a SATA device. A PATA device shall set
 601                  * word 76 to 0000h or FFFFh. If word 76 is set to 0000h or FFFFh, then
 602                  * the device does not claim compliance with the Serial ATA specification and words
 603                  * 76 through 79 are not valid and shall be ignored.
 604                  */
 605
 606                 word = identify.wyde[76];
 607                 if (!IN_SET(word, 0x0000, 0xffff)) {
 608                         printf("ID_ATA_SATA=1\n");
 609                         /*
 610                          * If bit 2 of word 76 is set to one, then the device supports the Gen2
 611                          * signaling rate of 3.0 Gb/s (see SATA 2.6).
 612                          *
 613                          * If bit 1 of word 76 is set to one, then the device supports the Gen1
 614                          * signaling rate of 1.5 Gb/s (see SATA 2.6).
 615                          */
 616                         if (word & (1<<2))
 617                                 printf("ID_ATA_SATA_SIGNAL_RATE_GEN2=1\n");
 618                         if (word & (1<<1))
 619                                 printf("ID_ATA_SATA_SIGNAL_RATE_GEN1=1\n");
 620                 }
 621
 622                 /* Word 217 indicates the nominal media rotation rate of the device */
 623                 word = identify.wyde[217];
 624                 if (word == 0x0001)
 625                         printf ("ID_ATA_ROTATION_RATE_RPM=0\n"); /* non-rotating e.g. SSD */
 626                 else if (word >= 0x0401 && word <= 0xfffe)
 627                         printf ("ID_ATA_ROTATION_RATE_RPM=%d\n", word);
 628
 629                 /*
 630                  * Words 108-111 contain a mandatory World Wide Name (WWN) in the NAA IEEE Registered identifier
 631                  * format. Word 108 bits (15:12) shall contain 5h, indicating that the naming authority is IEEE.
 632                  * All other values are reserved.
 633                  */
 634                 word = identify.wyde[108];
 635                 if ((word & 0xf000) == 0x5000) {
 636                         uint64_t wwwn;
 637
 638                         wwwn   = identify.wyde[108];
 639                         wwwn <<= 16;
 640                         wwwn  |= identify.wyde[109];
 641                         wwwn <<= 16;
 642                         wwwn  |= identify.wyde[110];
 643                         wwwn <<= 16;
 644                         wwwn  |= identify.wyde[111];
 645                         printf("ID_WWN=0x%1$" PRIx64 "\n"
 646                                "ID_WWN_WITH_EXTENSION=0x%1$" PRIx64 "\n",
 647                                wwwn);
 648                 }
 649
 650                 /* from Linux's include/linux/ata.h */
 651                 if (IN_SET(identify.wyde[0], 0x848a, 0x844a) ||
 652                     (identify.wyde[83] & 0xc004) == 0x4004)
 653                         printf("ID_ATA_CFA=1\n");
 654         } else {
 655                 if (serial[0] != '\0')
 656                         printf("%s_%s\n", model, serial);
 657                 else
 658                         printf("%s\n", model);
 659         }
 660
 661         return 0;
 662 }