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