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networkctl: avoid potential use of unitialized variables
[thirdparty/systemd.git] / src / udev / ata_id / ata_id.c
CommitLineData
e0f83fbe 1/*
670e4705
KS		 2 * ata_id - reads product/serial number from ATA drives
3 *
1298001e 4 * Copyright (C) 2005-2008 Kay Sievers <kay@vrfy.org>
66094a4a 5 * Copyright (C) 2009 Lennart Poettering <lennart@poettering.net>
6992637e 6 * Copyright (C) 2009-2010 David Zeuthen <zeuthen@gmail.com>
670e4705 7 *
55e9959b
KS		 8 * This program is free software: you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation, either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
670e4705
KS		 20 */
21
670e4705
KS		 22#include <stdio.h>
23#include <stdlib.h>
66094a4a 24#include <stdint.h>
670e4705
KS		 25#include <unistd.h>
26#include <fcntl.h>
27#include <ctype.h>
1aa1e248 28#include <string.h>
670e4705 29#include <errno.h>
4fa3d99d 30#include <getopt.h>
66094a4a
DZ		 31#include <scsi/scsi.h>
32#include <scsi/sg.h>
33#include <scsi/scsi_ioctl.h>
670e4705
KS		 34#include <sys/ioctl.h>
35#include <sys/types.h>
36#include <sys/stat.h>
37#include <linux/types.h>
38#include <linux/hdreg.h>
66094a4a 39#include <linux/fs.h>
160b069c 40#include <linux/cdrom.h>
6992637e 41#include <linux/bsg.h>
66094a4a 42#include <arpa/inet.h>
670e4705 43
9060b066
KS		 44#include "libudev.h"
45#include "libudev-private.h"
11c6f693 46#include "udev-util.h"
baa30fbc 47#include "log.h"
670e4705 48
6992637e 49#define COMMAND_TIMEOUT_MSEC (30 * 1000)
66094a4a 50
6992637e 51static int disk_scsi_inquiry_command(int fd,
912541b0
KS		 52 void *buf,
53 size_t buf_len)
66094a4a 54{
b8a2b0f7
ZJS		 55 uint8_t cdb[6] = {
56 /*
57 * INQUIRY, see SPC-4 section 6.4
58 */
59 [0] = 0x12, /* OPERATION CODE: INQUIRY */
60 [3] = (buf_len >> 8), /* ALLOCATION LENGTH */
61 [4] = (buf_len & 0xff),
62 };
63 uint8_t sense[32] = {};
64 struct sg_io_v4 io_v4 = {
65 .guard = 'Q',
66 .protocol = BSG_PROTOCOL_SCSI,
67 .subprotocol = BSG_SUB_PROTOCOL_SCSI_CMD,
68 .request_len = sizeof(cdb),
69 .request = (uintptr_t) cdb,
70 .max_response_len = sizeof(sense),
71 .response = (uintptr_t) sense,
72 .din_xfer_len = buf_len,
73 .din_xferp = (uintptr_t) buf,
74 .timeout = COMMAND_TIMEOUT_MSEC,
75 };
912541b0
KS		 76 int ret;
77
912541b0
KS		 78 ret = ioctl(fd, SG_IO, &io_v4);
79 if (ret != 0) {
80 /* could be that the driver doesn't do version 4, try version 3 */
81 if (errno == EINVAL) {
b8a2b0f7
ZJS		 82 struct sg_io_hdr io_hdr = {
83 .interface_id = 'S',
84 .cmdp = (unsigned char*) cdb,
85 .cmd_len = sizeof (cdb),
86 .dxferp = buf,
87 .dxfer_len = buf_len,
88 .sbp = sense,
89 .mx_sb_len = sizeof(sense),
90 .dxfer_direction = SG_DXFER_FROM_DEV,
91 .timeout = COMMAND_TIMEOUT_MSEC,
92 };
912541b0
KS		 93
94 ret = ioctl(fd, SG_IO, &io_hdr);
95 if (ret != 0)
b8a2b0f7 96 return ret;
912541b0
KS		 97
98 /* even if the ioctl succeeds, we need to check the return value */
99 if (!(io_hdr.status == 0 &&
100 io_hdr.host_status == 0 &&
101 io_hdr.driver_status == 0)) {
102 errno = EIO;
b8a2b0f7 103 return -1;
912541b0 104 }
b8a2b0f7
ZJS		 105 } else
106 return ret;
912541b0
KS		 107 }
108
109 /* even if the ioctl succeeds, we need to check the return value */
110 if (!(io_v4.device_status == 0 &&
111 io_v4.transport_status == 0 &&
112 io_v4.driver_status == 0)) {
113 errno = EIO;
b8a2b0f7 114 return -1;
912541b0 115 }
6992637e 116
b8a2b0f7 117 return 0;
66094a4a
DZ		 118}
119
912541b0
KS		 120static int disk_identify_command(int fd,
121 void *buf,
122 size_t buf_len)
66094a4a 123{
b8a2b0f7
ZJS		 124 uint8_t cdb[12] = {
125 /*
126 * ATA Pass-Through 12 byte command, as described in
127 *
128 * T10 04-262r8 ATA Command Pass-Through
129 *
130 * from http://www.t10.org/ftp/t10/document.04/04-262r8.pdf
131 */
132 [0] = 0xa1, /* OPERATION CODE: 12 byte pass through */
133 [1] = 4 << 1, /* PROTOCOL: PIO Data-in */
134 [2] = 0x2e, /* OFF_LINE=0, CK_COND=1, T_DIR=1, BYT_BLOK=1, T_LENGTH=2 */
135 [3] = 0, /* FEATURES */
136 [4] = 1, /* SECTORS */
137 [5] = 0, /* LBA LOW */
138 [6] = 0, /* LBA MID */
139 [7] = 0, /* LBA HIGH */
140 [8] = 0 & 0x4F, /* SELECT */
141 [9] = 0xEC, /* Command: ATA IDENTIFY DEVICE */
142 };
143 uint8_t sense[32] = {};
144 uint8_t *desc = sense + 8;
145 struct sg_io_v4 io_v4 = {
146 .guard = 'Q',
147 .protocol = BSG_PROTOCOL_SCSI,
148 .subprotocol = BSG_SUB_PROTOCOL_SCSI_CMD,
149 .request_len = sizeof(cdb),
150 .request = (uintptr_t) cdb,
151 .max_response_len = sizeof(sense),
152 .response = (uintptr_t) sense,
153 .din_xfer_len = buf_len,
154 .din_xferp = (uintptr_t) buf,
155 .timeout = COMMAND_TIMEOUT_MSEC,
156 };
912541b0
KS		 157 int ret;
158
912541b0
KS		 159 ret = ioctl(fd, SG_IO, &io_v4);
160 if (ret != 0) {
161 /* could be that the driver doesn't do version 4, try version 3 */
162 if (errno == EINVAL) {
b8a2b0f7
ZJS		 163 struct sg_io_hdr io_hdr = {
164 .interface_id = 'S',
165 .cmdp = (unsigned char*) cdb,
166 .cmd_len = sizeof (cdb),
167 .dxferp = buf,
168 .dxfer_len = buf_len,
169 .sbp = sense,
170 .mx_sb_len = sizeof (sense),
171 .dxfer_direction = SG_DXFER_FROM_DEV,
172 .timeout = COMMAND_TIMEOUT_MSEC,
173 };
912541b0
KS		 174
175 ret = ioctl(fd, SG_IO, &io_hdr);
176 if (ret != 0)
b8a2b0f7
ZJS		 177 return ret;
178 } else
179 return ret;
912541b0
KS		 180 }
181
182 if (!(sense[0] == 0x72 && desc[0] == 0x9 && desc[1] == 0x0c)) {
183 errno = EIO;
b8a2b0f7 184 return -1;
912541b0 185 }
66094a4a 186
b8a2b0f7 187 return 0;
66094a4a
DZ		 188}
189
912541b0
KS		 190static int disk_identify_packet_device_command(int fd,
191 void *buf,
192 size_t buf_len)
560de575 193{
b8a2b0f7
ZJS		 194 uint8_t cdb[16] = {
195 /*
196 * ATA Pass-Through 16 byte command, as described in
197 *
198 * T10 04-262r8 ATA Command Pass-Through
199 *
200 * from http://www.t10.org/ftp/t10/document.04/04-262r8.pdf
201 */
202 [0] = 0x85, /* OPERATION CODE: 16 byte pass through */
203 [1] = 4 << 1, /* PROTOCOL: PIO Data-in */
204 [2] = 0x2e, /* OFF_LINE=0, CK_COND=1, T_DIR=1, BYT_BLOK=1, T_LENGTH=2 */
205 [3] = 0, /* FEATURES */
206 [4] = 0, /* FEATURES */
207 [5] = 0, /* SECTORS */
208 [6] = 1, /* SECTORS */
209 [7] = 0, /* LBA LOW */
210 [8] = 0, /* LBA LOW */
211 [9] = 0, /* LBA MID */
212 [10] = 0, /* LBA MID */
213 [11] = 0, /* LBA HIGH */
214 [12] = 0, /* LBA HIGH */
215 [13] = 0, /* DEVICE */
216 [14] = 0xA1, /* Command: ATA IDENTIFY PACKET DEVICE */
217 [15] = 0, /* CONTROL */
218 };
219 uint8_t sense[32] = {};
220 uint8_t *desc = sense + 8;
221 struct sg_io_v4 io_v4 = {
222 .guard = 'Q',
223 .protocol = BSG_PROTOCOL_SCSI,
224 .subprotocol = BSG_SUB_PROTOCOL_SCSI_CMD,
225 .request_len = sizeof (cdb),
226 .request = (uintptr_t) cdb,
227 .max_response_len = sizeof (sense),
228 .response = (uintptr_t) sense,
229 .din_xfer_len = buf_len,
230 .din_xferp = (uintptr_t) buf,
231 .timeout = COMMAND_TIMEOUT_MSEC,
232 };
912541b0
KS		 233 int ret;
234
912541b0
KS		 235 ret = ioctl(fd, SG_IO, &io_v4);
236 if (ret != 0) {
237 /* could be that the driver doesn't do version 4, try version 3 */
238 if (errno == EINVAL) {
b8a2b0f7
ZJS		 239 struct sg_io_hdr io_hdr = {
240 .interface_id = 'S',
241 .cmdp = (unsigned char*) cdb,
242 .cmd_len = sizeof (cdb),
243 .dxferp = buf,
244 .dxfer_len = buf_len,
245 .sbp = sense,
246 .mx_sb_len = sizeof (sense),
247 .dxfer_direction = SG_DXFER_FROM_DEV,
248 .timeout = COMMAND_TIMEOUT_MSEC,
249 };
912541b0
KS		 250
251 ret = ioctl(fd, SG_IO, &io_hdr);
252 if (ret != 0)
b8a2b0f7
ZJS		 253 return ret;
254 } else
255 return ret;
912541b0
KS		 256 }
257
258 if (!(sense[0] == 0x72 && desc[0] == 0x9 && desc[1] == 0x0c)) {
259 errno = EIO;
b8a2b0f7 260 return -1;
912541b0 261 }
560de575 262
b8a2b0f7 263 return 0;
560de575
DZ		 264}
265
66094a4a
DZ		 266/**
267 * disk_identify_get_string:
268 * @identify: A block of IDENTIFY data
269 * @offset_words: Offset of the string to get, in words.
270 * @dest: Destination buffer for the string.
271 * @dest_len: Length of destination buffer, in bytes.
272 *
273 * Copies the ATA string from @identify located at @offset_words into @dest.
274 */
09db3f5b
KS		 275static void disk_identify_get_string(uint8_t identify[512],
276 unsigned int offset_words,
277 char *dest,
278 size_t dest_len)
66094a4a 279{
912541b0
KS		 280 unsigned int c1;
281 unsigned int c2;
282
912541b0 283 while (dest_len > 0) {
2b2823b4
AS		 284 c1 = identify[offset_words * 2 + 1];
285 c2 = identify[offset_words * 2];
912541b0
KS		 286 *dest = c1;
287 dest++;
288 *dest = c2;
289 dest++;
290 offset_words++;
291 dest_len -= 2;
292 }
66094a4a
DZ		 293}
294
09db3f5b
KS		 295static void disk_identify_fixup_string(uint8_t identify[512],
296 unsigned int offset_words,
297 size_t len)
66094a4a 298{
912541b0
KS		 299 disk_identify_get_string(identify, offset_words,
300 (char *) identify + offset_words * 2, len);
66094a4a
DZ		 301}
302
303static void disk_identify_fixup_uint16 (uint8_t identify[512], unsigned int offset_words)
304{
912541b0 305 uint16_t *p;
66094a4a 306
912541b0
KS		 307 p = (uint16_t *) identify;
308 p[offset_words] = le16toh (p[offset_words]);
66094a4a
DZ		 309}
310
311/**
312 * disk_identify:
313 * @udev: The libudev context.
314 * @fd: File descriptor for the block device.
315 * @out_identify: Return location for IDENTIFY data.
560de575 316 * @out_is_packet_device: Return location for whether returned data is from a IDENTIFY PACKET DEVICE.
66094a4a 317 *
560de575
DZ		 318 * Sends the IDENTIFY DEVICE or IDENTIFY PACKET DEVICE command to the
319 * device represented by @fd. If successful, then the result will be
320 * copied into @out_identify and @out_is_packet_device.
66094a4a
DZ		 321 *
322 * This routine is based on code from libatasmart, Copyright 2008
323 * Lennart Poettering, LGPL v2.1.
324 *
560de575
DZ		 325 * Returns: 0 if the data was successfully obtained, otherwise
326 * non-zero with errno set.
66094a4a 327 */
09db3f5b 328static int disk_identify(struct udev *udev,
b8a2b0f7
ZJS		 329 int fd,
330 uint8_t out_identify[512],
331 int *out_is_packet_device)
66094a4a 332{
912541b0
KS		 333 int ret;
334 uint8_t inquiry_buf[36];
335 int peripheral_device_type;
336 int all_nul_bytes;
337 int n;
1e8e0a32 338 int is_packet_device = 0;
912541b0 339
912541b0 340 /* init results */
1e8e0a32 341 memzero(out_identify, 512);
912541b0
KS		 342
343 /* If we were to use ATA PASS_THROUGH (12) on an ATAPI device
344 * we could accidentally blank media. This is because MMC's BLANK
345 * command has the same op-code (0x61).
346 *
347 * To prevent this from happening we bail out if the device
348 * isn't a Direct Access Block Device, e.g. SCSI type 0x00
349 * (CD/DVD devices are type 0x05). So we send a SCSI INQUIRY
350 * command first... libata is handling this via its SCSI
351 * emulation layer.
352 *
353 * This also ensures that we're actually dealing with a device
354 * that understands SCSI commands.
355 *
356 * (Yes, it is a bit perverse that we're tunneling the ATA
357 * command through SCSI and relying on the ATA driver
358 * emulating SCSI well-enough...)
359 *
360 * (See commit 160b069c25690bfb0c785994c7c3710289179107 for
361 * the original bug-fix and see http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=556635
362 * for the original bug-report.)
363 */
364 ret = disk_scsi_inquiry_command (fd, inquiry_buf, sizeof (inquiry_buf));
365 if (ret != 0)
366 goto out;
367
368 /* SPC-4, section 6.4.2: Standard INQUIRY data */
369 peripheral_device_type = inquiry_buf[0] & 0x1f;
370 if (peripheral_device_type == 0x05)
371 {
372 is_packet_device = 1;
373 ret = disk_identify_packet_device_command(fd, out_identify, 512);
374 goto check_nul_bytes;
375 }
376 if (peripheral_device_type != 0x00) {
377 ret = -1;
378 errno = EIO;
379 goto out;
380 }
381
382 /* OK, now issue the IDENTIFY DEVICE command */
383 ret = disk_identify_command(fd, out_identify, 512);
384 if (ret != 0)
385 goto out;
66094a4a 386
560de575 387 check_nul_bytes:
912541b0
KS		 388 /* Check if IDENTIFY data is all NUL bytes - if so, bail */
389 all_nul_bytes = 1;
390 for (n = 0; n < 512; n++) {
391 if (out_identify[n] != '\0') {
392 all_nul_bytes = 0;
393 break;
394 }
395 }
396
397 if (all_nul_bytes) {
398 ret = -1;
399 errno = EIO;
400 goto out;
401 }
66094a4a 402
6992637e 403out:
912541b0 404 if (out_is_packet_device != NULL)
1e8e0a32 405 *out_is_packet_device = is_packet_device;
912541b0 406 return ret;
66094a4a
DZ		 407}
408
670e4705
KS		 409int main(int argc, char *argv[])
410{
11c6f693 411 _cleanup_udev_unref_ struct udev *udev = NULL;
912541b0 412 struct hd_driveid id;
6024a6e3
SL		 413 union {
414 uint8_t byte[512];
415 uint16_t wyde[256];
416 uint64_t octa[64];
417 } identify;
912541b0
KS		 418 char model[41];
419 char model_enc[256];
420 char serial[21];
421 char revision[9];
422 const char *node = NULL;
423 int export = 0;
11c6f693 424 _cleanup_close_ int fd = -1;
912541b0 425 uint16_t word;
912541b0
KS		 426 int is_packet_device = 0;
427 static const struct option options[] = {
428 { "export", no_argument, NULL, 'x' },
429 { "help", no_argument, NULL, 'h' },
430 {}
431 };
432
5168f84a
LP		 433 log_parse_environment();
434 log_open();
435
912541b0
KS		 436 udev = udev_new();
437 if (udev == NULL)
11c6f693 438 return 0;
912541b0 439
912541b0
KS		 440 while (1) {
441 int option;
442
443 option = getopt_long(argc, argv, "xh", options, NULL);
444 if (option == -1)
445 break;
446
447 switch (option) {
448 case 'x':
449 export = 1;
450 break;
451 case 'h':
452 printf("Usage: ata_id [--export] [--help] <device>\n"
453 " --export print values as environment keys\n"
454 " --help print this help text\n\n");
11c6f693 455 return 0;
912541b0
KS		 456 }
457 }
458
459 node = argv[optind];
460 if (node == NULL) {
9f6445e3 461 log_error("no node specified");
11c6f693 462 return 1;
912541b0
KS		 463 }
464
c8a202b7 465 fd = open(node, O_RDONLY|O_NONBLOCK|O_CLOEXEC);
912541b0 466 if (fd < 0) {
9f6445e3 467 log_error("unable to open '%s'", node);
11c6f693 468 return 1;
912541b0
KS		 469 }
470
6024a6e3 471 if (disk_identify(udev, fd, identify.byte, &is_packet_device) == 0) {
912541b0
KS		 472 /*
473 * fix up only the fields from the IDENTIFY data that we are going to
474 * use and copy it into the hd_driveid struct for convenience
475 */
6024a6e3
SL		 476 disk_identify_fixup_string(identify.byte, 10, 20); /* serial */
477 disk_identify_fixup_string(identify.byte, 23, 8); /* fwrev */
478 disk_identify_fixup_string(identify.byte, 27, 40); /* model */
479 disk_identify_fixup_uint16(identify.byte, 0); /* configuration */
480 disk_identify_fixup_uint16(identify.byte, 75); /* queue depth */
481 disk_identify_fixup_uint16(identify.byte, 75); /* SATA capabilities */
482 disk_identify_fixup_uint16(identify.byte, 82); /* command set supported */
483 disk_identify_fixup_uint16(identify.byte, 83); /* command set supported */
484 disk_identify_fixup_uint16(identify.byte, 84); /* command set supported */
485 disk_identify_fixup_uint16(identify.byte, 85); /* command set supported */
486 disk_identify_fixup_uint16(identify.byte, 86); /* command set supported */
487 disk_identify_fixup_uint16(identify.byte, 87); /* command set supported */
488 disk_identify_fixup_uint16(identify.byte, 89); /* time required for SECURITY ERASE UNIT */
489 disk_identify_fixup_uint16(identify.byte, 90); /* time required for enhanced SECURITY ERASE UNIT */
490 disk_identify_fixup_uint16(identify.byte, 91); /* current APM values */
491 disk_identify_fixup_uint16(identify.byte, 94); /* current AAM value */
492 disk_identify_fixup_uint16(identify.byte, 128); /* device lock function */
493 disk_identify_fixup_uint16(identify.byte, 217); /* nominal media rotation rate */
494 memcpy(&id, identify.byte, sizeof id);
912541b0
KS		 495 } else {
496 /* If this fails, then try HDIO_GET_IDENTITY */
497 if (ioctl(fd, HDIO_GET_IDENTITY, &id) != 0) {
56f64d95 498 log_debug_errno(errno, "HDIO_GET_IDENTITY failed for '%s': %m", node);
11c6f693 499 return 2;
912541b0
KS		 500 }
501 }
912541b0
KS		 502
503 memcpy (model, id.model, 40);
504 model[40] = '\0';
505 udev_util_encode_string(model, model_enc, sizeof(model_enc));
506 util_replace_whitespace((char *) id.model, model, 40);
507 util_replace_chars(model, NULL);
508 util_replace_whitespace((char *) id.serial_no, serial, 20);
509 util_replace_chars(serial, NULL);
510 util_replace_whitespace((char *) id.fw_rev, revision, 8);
511 util_replace_chars(revision, NULL);
512
513 if (export) {
514 /* Set this to convey the disk speaks the ATA protocol */
515 printf("ID_ATA=1\n");
516
517 if ((id.config >> 8) & 0x80) {
518 /* This is an ATAPI device */
519 switch ((id.config >> 8) & 0x1f) {
520 case 0:
521 printf("ID_TYPE=cd\n");
522 break;
523 case 1:
524 printf("ID_TYPE=tape\n");
525 break;
526 case 5:
527 printf("ID_TYPE=cd\n");
528 break;
529 case 7:
530 printf("ID_TYPE=optical\n");
531 break;
532 default:
533 printf("ID_TYPE=generic\n");
534 break;
535 }
536 } else {
537 printf("ID_TYPE=disk\n");
538 }
539 printf("ID_BUS=ata\n");
540 printf("ID_MODEL=%s\n", model);
541 printf("ID_MODEL_ENC=%s\n", model_enc);
542 printf("ID_REVISION=%s\n", revision);
543 if (serial[0] != '\0') {
544 printf("ID_SERIAL=%s_%s\n", model, serial);
545 printf("ID_SERIAL_SHORT=%s\n", serial);
546 } else {
547 printf("ID_SERIAL=%s\n", model);
548 }
549
550 if (id.command_set_1 & (1<<5)) {
11c6f693
ZJS		 551 printf("ID_ATA_WRITE_CACHE=1\n");
552 printf("ID_ATA_WRITE_CACHE_ENABLED=%d\n", (id.cfs_enable_1 & (1<<5)) ? 1 : 0);
912541b0
KS		 553 }
554 if (id.command_set_1 & (1<<10)) {
555 printf("ID_ATA_FEATURE_SET_HPA=1\n");
556 printf("ID_ATA_FEATURE_SET_HPA_ENABLED=%d\n", (id.cfs_enable_1 & (1<<10)) ? 1 : 0);
557
558 /*
559 * TODO: use the READ NATIVE MAX ADDRESS command to get the native max address
560 * so it is easy to check whether the protected area is in use.
561 */
562 }
563 if (id.command_set_1 & (1<<3)) {
564 printf("ID_ATA_FEATURE_SET_PM=1\n");
565 printf("ID_ATA_FEATURE_SET_PM_ENABLED=%d\n", (id.cfs_enable_1 & (1<<3)) ? 1 : 0);
566 }
567 if (id.command_set_1 & (1<<1)) {
568 printf("ID_ATA_FEATURE_SET_SECURITY=1\n");
569 printf("ID_ATA_FEATURE_SET_SECURITY_ENABLED=%d\n", (id.cfs_enable_1 & (1<<1)) ? 1 : 0);
570 printf("ID_ATA_FEATURE_SET_SECURITY_ERASE_UNIT_MIN=%d\n", id.trseuc * 2);
571 if ((id.cfs_enable_1 & (1<<1))) /* enabled */ {
572 if (id.dlf & (1<<8))
573 printf("ID_ATA_FEATURE_SET_SECURITY_LEVEL=maximum\n");
574 else
575 printf("ID_ATA_FEATURE_SET_SECURITY_LEVEL=high\n");
576 }
577 if (id.dlf & (1<<5))
578 printf("ID_ATA_FEATURE_SET_SECURITY_ENHANCED_ERASE_UNIT_MIN=%d\n", id.trsEuc * 2);
579 if (id.dlf & (1<<4))
580 printf("ID_ATA_FEATURE_SET_SECURITY_EXPIRE=1\n");
581 if (id.dlf & (1<<3))
582 printf("ID_ATA_FEATURE_SET_SECURITY_FROZEN=1\n");
583 if (id.dlf & (1<<2))
584 printf("ID_ATA_FEATURE_SET_SECURITY_LOCKED=1\n");
585 }
586 if (id.command_set_1 & (1<<0)) {
587 printf("ID_ATA_FEATURE_SET_SMART=1\n");
588 printf("ID_ATA_FEATURE_SET_SMART_ENABLED=%d\n", (id.cfs_enable_1 & (1<<0)) ? 1 : 0);
589 }
590 if (id.command_set_2 & (1<<9)) {
591 printf("ID_ATA_FEATURE_SET_AAM=1\n");
592 printf("ID_ATA_FEATURE_SET_AAM_ENABLED=%d\n", (id.cfs_enable_2 & (1<<9)) ? 1 : 0);
593 printf("ID_ATA_FEATURE_SET_AAM_VENDOR_RECOMMENDED_VALUE=%d\n", id.acoustic >> 8);
594 printf("ID_ATA_FEATURE_SET_AAM_CURRENT_VALUE=%d\n", id.acoustic & 0xff);
595 }
596 if (id.command_set_2 & (1<<5)) {
597 printf("ID_ATA_FEATURE_SET_PUIS=1\n");
598 printf("ID_ATA_FEATURE_SET_PUIS_ENABLED=%d\n", (id.cfs_enable_2 & (1<<5)) ? 1 : 0);
599 }
600 if (id.command_set_2 & (1<<3)) {
601 printf("ID_ATA_FEATURE_SET_APM=1\n");
602 printf("ID_ATA_FEATURE_SET_APM_ENABLED=%d\n", (id.cfs_enable_2 & (1<<3)) ? 1 : 0);
603 if ((id.cfs_enable_2 & (1<<3)))
604 printf("ID_ATA_FEATURE_SET_APM_CURRENT_VALUE=%d\n", id.CurAPMvalues & 0xff);
605 }
606 if (id.command_set_2 & (1<<0))
607 printf("ID_ATA_DOWNLOAD_MICROCODE=1\n");
608
609 /*
610 * Word 76 indicates the capabilities of a SATA device. A PATA device shall set
611 * word 76 to 0000h or FFFFh. If word 76 is set to 0000h or FFFFh, then
612 * the device does not claim compliance with the Serial ATA specification and words
613 * 76 through 79 are not valid and shall be ignored.
614 */
3dd0bbeb
ZJS		 615
616 word = identify.wyde[76];
912541b0
KS		 617 if (word != 0x0000 && word != 0xffff) {
618 printf("ID_ATA_SATA=1\n");
619 /*
620 * If bit 2 of word 76 is set to one, then the device supports the Gen2
621 * signaling rate of 3.0 Gb/s (see SATA 2.6).
622 *
623 * If bit 1 of word 76 is set to one, then the device supports the Gen1
624 * signaling rate of 1.5 Gb/s (see SATA 2.6).
625 */
626 if (word & (1<<2))
627 printf("ID_ATA_SATA_SIGNAL_RATE_GEN2=1\n");
628 if (word & (1<<1))
629 printf("ID_ATA_SATA_SIGNAL_RATE_GEN1=1\n");
630 }
631
632 /* Word 217 indicates the nominal media rotation rate of the device */
3dd0bbeb 633 word = identify.wyde[217];
11c6f693
ZJS		 634 if (word == 0x0001)
635 printf ("ID_ATA_ROTATION_RATE_RPM=0\n"); /* non-rotating e.g. SSD */
636 else if (word >= 0x0401 && word <= 0xfffe)
637 printf ("ID_ATA_ROTATION_RATE_RPM=%d\n", word);
912541b0
KS		 638
639 /*
640 * Words 108-111 contain a mandatory World Wide Name (WWN) in the NAA IEEE Registered identifier
641 * format. Word 108 bits (15:12) shall contain 5h, indicating that the naming authority is IEEE.
642 * All other values are reserved.
643 */
3dd0bbeb 644 word = identify.wyde[108];
11c6f693
ZJS		 645 if ((word & 0xf000) == 0x5000)
646 printf("ID_WWN=0x%1$"PRIu64"x\n"
647 "ID_WWN_WITH_EXTENSION=0x%1$"PRIu64"x\n",
648 identify.octa[108/4]);
912541b0
KS		 649
650 /* from Linux's include/linux/ata.h */
3dd0bbeb
ZJS		 651 if (identify.wyde[0] == 0x848a ||
652 identify.wyde[0] == 0x844a ||
653 (identify.wyde[83] & 0xc004) == 0x4004)
912541b0 654 printf("ID_ATA_CFA=1\n");
912541b0
KS		 655 } else {
656 if (serial[0] != '\0')
657 printf("%s_%s\n", model, serial);
658 else
659 printf("%s\n", model);
660 }
11c6f693
ZJS		 661
662 return 0;
670e4705 663}
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