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[thirdparty/systemd.git] / src / udev / ata_id / ata_id.c
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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"
baa30fbc 46#include "log.h"
670e4705 47
6992637e 48#define COMMAND_TIMEOUT_MSEC (30 * 1000)
66094a4a 49
6992637e 50static int disk_scsi_inquiry_command(int fd,
912541b0
KS		 51 void *buf,
52 size_t buf_len)
66094a4a 53{
b8a2b0f7
ZJS		 54 uint8_t cdb[6] = {
55 /*
56 * INQUIRY, see SPC-4 section 6.4
57 */
58 [0] = 0x12, /* OPERATION CODE: INQUIRY */
59 [3] = (buf_len >> 8), /* ALLOCATION LENGTH */
60 [4] = (buf_len & 0xff),
61 };
62 uint8_t sense[32] = {};
63 struct sg_io_v4 io_v4 = {
64 .guard = 'Q',
65 .protocol = BSG_PROTOCOL_SCSI,
66 .subprotocol = BSG_SUB_PROTOCOL_SCSI_CMD,
67 .request_len = sizeof(cdb),
68 .request = (uintptr_t) cdb,
69 .max_response_len = sizeof(sense),
70 .response = (uintptr_t) sense,
71 .din_xfer_len = buf_len,
72 .din_xferp = (uintptr_t) buf,
73 .timeout = COMMAND_TIMEOUT_MSEC,
74 };
912541b0
KS		 75 int ret;
76
912541b0
KS		 77 ret = ioctl(fd, SG_IO, &io_v4);
78 if (ret != 0) {
79 /* could be that the driver doesn't do version 4, try version 3 */
80 if (errno == EINVAL) {
b8a2b0f7
ZJS		 81 struct sg_io_hdr io_hdr = {
82 .interface_id = 'S',
83 .cmdp = (unsigned char*) cdb,
84 .cmd_len = sizeof (cdb),
85 .dxferp = buf,
86 .dxfer_len = buf_len,
87 .sbp = sense,
88 .mx_sb_len = sizeof(sense),
89 .dxfer_direction = SG_DXFER_FROM_DEV,
90 .timeout = COMMAND_TIMEOUT_MSEC,
91 };
912541b0
KS		 92
93 ret = ioctl(fd, SG_IO, &io_hdr);
94 if (ret != 0)
b8a2b0f7 95 return ret;
912541b0
KS		 96
97 /* even if the ioctl succeeds, we need to check the return value */
98 if (!(io_hdr.status == 0 &&
99 io_hdr.host_status == 0 &&
100 io_hdr.driver_status == 0)) {
101 errno = EIO;
b8a2b0f7 102 return -1;
912541b0 103 }
b8a2b0f7
ZJS		 104 } else
105 return ret;
912541b0
KS		 106 }
107
108 /* even if the ioctl succeeds, we need to check the return value */
109 if (!(io_v4.device_status == 0 &&
110 io_v4.transport_status == 0 &&
111 io_v4.driver_status == 0)) {
112 errno = EIO;
b8a2b0f7 113 return -1;
912541b0 114 }
6992637e 115
b8a2b0f7 116 return 0;
66094a4a
DZ		 117}
118
912541b0
KS		 119static int disk_identify_command(int fd,
120 void *buf,
121 size_t buf_len)
66094a4a 122{
b8a2b0f7
ZJS		 123 uint8_t cdb[12] = {
124 /*
125 * ATA Pass-Through 12 byte command, as described in
126 *
127 * T10 04-262r8 ATA Command Pass-Through
128 *
129 * from http://www.t10.org/ftp/t10/document.04/04-262r8.pdf
130 */
131 [0] = 0xa1, /* OPERATION CODE: 12 byte pass through */
132 [1] = 4 << 1, /* PROTOCOL: PIO Data-in */
133 [2] = 0x2e, /* OFF_LINE=0, CK_COND=1, T_DIR=1, BYT_BLOK=1, T_LENGTH=2 */
134 [3] = 0, /* FEATURES */
135 [4] = 1, /* SECTORS */
136 [5] = 0, /* LBA LOW */
137 [6] = 0, /* LBA MID */
138 [7] = 0, /* LBA HIGH */
139 [8] = 0 & 0x4F, /* SELECT */
140 [9] = 0xEC, /* Command: ATA IDENTIFY DEVICE */
141 };
142 uint8_t sense[32] = {};
143 uint8_t *desc = sense + 8;
144 struct sg_io_v4 io_v4 = {
145 .guard = 'Q',
146 .protocol = BSG_PROTOCOL_SCSI,
147 .subprotocol = BSG_SUB_PROTOCOL_SCSI_CMD,
148 .request_len = sizeof(cdb),
149 .request = (uintptr_t) cdb,
150 .max_response_len = sizeof(sense),
151 .response = (uintptr_t) sense,
152 .din_xfer_len = buf_len,
153 .din_xferp = (uintptr_t) buf,
154 .timeout = COMMAND_TIMEOUT_MSEC,
155 };
912541b0
KS		 156 int ret;
157
912541b0
KS		 158 ret = ioctl(fd, SG_IO, &io_v4);
159 if (ret != 0) {
160 /* could be that the driver doesn't do version 4, try version 3 */
161 if (errno == EINVAL) {
b8a2b0f7
ZJS		 162 struct sg_io_hdr io_hdr = {
163 .interface_id = 'S',
164 .cmdp = (unsigned char*) cdb,
165 .cmd_len = sizeof (cdb),
166 .dxferp = buf,
167 .dxfer_len = buf_len,
168 .sbp = sense,
169 .mx_sb_len = sizeof (sense),
170 .dxfer_direction = SG_DXFER_FROM_DEV,
171 .timeout = COMMAND_TIMEOUT_MSEC,
172 };
912541b0
KS		 173
174 ret = ioctl(fd, SG_IO, &io_hdr);
175 if (ret != 0)
b8a2b0f7
ZJS		 176 return ret;
177 } else
178 return ret;
912541b0
KS		 179 }
180
181 if (!(sense[0] == 0x72 && desc[0] == 0x9 && desc[1] == 0x0c)) {
182 errno = EIO;
b8a2b0f7 183 return -1;
912541b0 184 }
66094a4a 185
b8a2b0f7 186 return 0;
66094a4a
DZ		 187}
188
912541b0
KS		 189static int disk_identify_packet_device_command(int fd,
190 void *buf,
191 size_t buf_len)
560de575 192{
b8a2b0f7
ZJS		 193 uint8_t cdb[16] = {
194 /*
195 * ATA Pass-Through 16 byte command, as described in
196 *
197 * T10 04-262r8 ATA Command Pass-Through
198 *
199 * from http://www.t10.org/ftp/t10/document.04/04-262r8.pdf
200 */
201 [0] = 0x85, /* OPERATION CODE: 16 byte pass through */
202 [1] = 4 << 1, /* PROTOCOL: PIO Data-in */
203 [2] = 0x2e, /* OFF_LINE=0, CK_COND=1, T_DIR=1, BYT_BLOK=1, T_LENGTH=2 */
204 [3] = 0, /* FEATURES */
205 [4] = 0, /* FEATURES */
206 [5] = 0, /* SECTORS */
207 [6] = 1, /* SECTORS */
208 [7] = 0, /* LBA LOW */
209 [8] = 0, /* LBA LOW */
210 [9] = 0, /* LBA MID */
211 [10] = 0, /* LBA MID */
212 [11] = 0, /* LBA HIGH */
213 [12] = 0, /* LBA HIGH */
214 [13] = 0, /* DEVICE */
215 [14] = 0xA1, /* Command: ATA IDENTIFY PACKET DEVICE */
216 [15] = 0, /* CONTROL */
217 };
218 uint8_t sense[32] = {};
219 uint8_t *desc = sense + 8;
220 struct sg_io_v4 io_v4 = {
221 .guard = 'Q',
222 .protocol = BSG_PROTOCOL_SCSI,
223 .subprotocol = BSG_SUB_PROTOCOL_SCSI_CMD,
224 .request_len = sizeof (cdb),
225 .request = (uintptr_t) cdb,
226 .max_response_len = sizeof (sense),
227 .response = (uintptr_t) sense,
228 .din_xfer_len = buf_len,
229 .din_xferp = (uintptr_t) buf,
230 .timeout = COMMAND_TIMEOUT_MSEC,
231 };
912541b0
KS		 232 int ret;
233
912541b0
KS		 234 ret = ioctl(fd, SG_IO, &io_v4);
235 if (ret != 0) {
236 /* could be that the driver doesn't do version 4, try version 3 */
237 if (errno == EINVAL) {
b8a2b0f7
ZJS		 238 struct sg_io_hdr io_hdr = {
239 .interface_id = 'S',
240 .cmdp = (unsigned char*) cdb,
241 .cmd_len = sizeof (cdb),
242 .dxferp = buf,
243 .dxfer_len = buf_len,
244 .sbp = sense,
245 .mx_sb_len = sizeof (sense),
246 .dxfer_direction = SG_DXFER_FROM_DEV,
247 .timeout = COMMAND_TIMEOUT_MSEC,
248 };
912541b0
KS		 249
250 ret = ioctl(fd, SG_IO, &io_hdr);
251 if (ret != 0)
b8a2b0f7
ZJS		 252 return ret;
253 } else
254 return ret;
912541b0
KS		 255 }
256
257 if (!(sense[0] == 0x72 && desc[0] == 0x9 && desc[1] == 0x0c)) {
258 errno = EIO;
b8a2b0f7 259 return -1;
912541b0 260 }
560de575 261
b8a2b0f7 262 return 0;
560de575
DZ		 263}
264
66094a4a
DZ		 265/**
266 * disk_identify_get_string:
267 * @identify: A block of IDENTIFY data
268 * @offset_words: Offset of the string to get, in words.
269 * @dest: Destination buffer for the string.
270 * @dest_len: Length of destination buffer, in bytes.
271 *
272 * Copies the ATA string from @identify located at @offset_words into @dest.
273 */
09db3f5b
KS		 274static void disk_identify_get_string(uint8_t identify[512],
275 unsigned int offset_words,
276 char *dest,
277 size_t dest_len)
66094a4a 278{
912541b0
KS		 279 unsigned int c1;
280 unsigned int c2;
281
912541b0 282 while (dest_len > 0) {
2b2823b4
AS		 283 c1 = identify[offset_words * 2 + 1];
284 c2 = identify[offset_words * 2];
912541b0
KS		 285 *dest = c1;
286 dest++;
287 *dest = c2;
288 dest++;
289 offset_words++;
290 dest_len -= 2;
291 }
66094a4a
DZ		 292}
293
09db3f5b
KS		 294static void disk_identify_fixup_string(uint8_t identify[512],
295 unsigned int offset_words,
296 size_t len)
66094a4a 297{
912541b0
KS		 298 disk_identify_get_string(identify, offset_words,
299 (char *) identify + offset_words * 2, len);
66094a4a
DZ		 300}
301
302static void disk_identify_fixup_uint16 (uint8_t identify[512], unsigned int offset_words)
303{
912541b0 304 uint16_t *p;
66094a4a 305
912541b0
KS		 306 p = (uint16_t *) identify;
307 p[offset_words] = le16toh (p[offset_words]);
66094a4a
DZ		 308}
309
310/**
311 * disk_identify:
312 * @udev: The libudev context.
313 * @fd: File descriptor for the block device.
314 * @out_identify: Return location for IDENTIFY data.
560de575 315 * @out_is_packet_device: Return location for whether returned data is from a IDENTIFY PACKET DEVICE.
66094a4a 316 *
560de575
DZ		 317 * Sends the IDENTIFY DEVICE or IDENTIFY PACKET DEVICE command to the
318 * device represented by @fd. If successful, then the result will be
319 * copied into @out_identify and @out_is_packet_device.
66094a4a
DZ		 320 *
321 * This routine is based on code from libatasmart, Copyright 2008
322 * Lennart Poettering, LGPL v2.1.
323 *
560de575
DZ		 324 * Returns: 0 if the data was successfully obtained, otherwise
325 * non-zero with errno set.
66094a4a 326 */
09db3f5b 327static int disk_identify(struct udev *udev,
b8a2b0f7
ZJS		 328 int fd,
329 uint8_t out_identify[512],
330 int *out_is_packet_device)
66094a4a 331{
912541b0
KS		 332 int ret;
333 uint8_t inquiry_buf[36];
334 int peripheral_device_type;
335 int all_nul_bytes;
336 int n;
1e8e0a32 337 int is_packet_device = 0;
912541b0 338
912541b0 339 /* init results */
1e8e0a32 340 memzero(out_identify, 512);
912541b0
KS		 341
342 /* If we were to use ATA PASS_THROUGH (12) on an ATAPI device
343 * we could accidentally blank media. This is because MMC's BLANK
344 * command has the same op-code (0x61).
345 *
346 * To prevent this from happening we bail out if the device
347 * isn't a Direct Access Block Device, e.g. SCSI type 0x00
348 * (CD/DVD devices are type 0x05). So we send a SCSI INQUIRY
349 * command first... libata is handling this via its SCSI
350 * emulation layer.
351 *
352 * This also ensures that we're actually dealing with a device
353 * that understands SCSI commands.
354 *
355 * (Yes, it is a bit perverse that we're tunneling the ATA
356 * command through SCSI and relying on the ATA driver
357 * emulating SCSI well-enough...)
358 *
359 * (See commit 160b069c25690bfb0c785994c7c3710289179107 for
360 * the original bug-fix and see http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=556635
361 * for the original bug-report.)
362 */
363 ret = disk_scsi_inquiry_command (fd, inquiry_buf, sizeof (inquiry_buf));
364 if (ret != 0)
365 goto out;
366
367 /* SPC-4, section 6.4.2: Standard INQUIRY data */
368 peripheral_device_type = inquiry_buf[0] & 0x1f;
369 if (peripheral_device_type == 0x05)
370 {
371 is_packet_device = 1;
372 ret = disk_identify_packet_device_command(fd, out_identify, 512);
373 goto check_nul_bytes;
374 }
375 if (peripheral_device_type != 0x00) {
376 ret = -1;
377 errno = EIO;
378 goto out;
379 }
380
381 /* OK, now issue the IDENTIFY DEVICE command */
382 ret = disk_identify_command(fd, out_identify, 512);
383 if (ret != 0)
384 goto out;
66094a4a 385
560de575 386 check_nul_bytes:
912541b0
KS		 387 /* Check if IDENTIFY data is all NUL bytes - if so, bail */
388 all_nul_bytes = 1;
389 for (n = 0; n < 512; n++) {
390 if (out_identify[n] != '\0') {
391 all_nul_bytes = 0;
392 break;
393 }
394 }
395
396 if (all_nul_bytes) {
397 ret = -1;
398 errno = EIO;
399 goto out;
400 }
66094a4a 401
6992637e 402out:
912541b0 403 if (out_is_packet_device != NULL)
1e8e0a32 404 *out_is_packet_device = is_packet_device;
912541b0 405 return ret;
66094a4a
DZ		 406}
407
670e4705
KS		 408int main(int argc, char *argv[])
409{
912541b0
KS		 410 struct udev *udev;
411 struct hd_driveid id;
412 uint8_t identify[512];
413 uint16_t *identify_words;
414 char model[41];
415 char model_enc[256];
416 char serial[21];
417 char revision[9];
418 const char *node = NULL;
419 int export = 0;
420 int fd;
421 uint16_t word;
422 int rc = 0;
423 int is_packet_device = 0;
424 static const struct option options[] = {
425 { "export", no_argument, NULL, 'x' },
426 { "help", no_argument, NULL, 'h' },
427 {}
428 };
429
5168f84a
LP		 430 log_parse_environment();
431 log_open();
432
912541b0
KS		 433 udev = udev_new();
434 if (udev == NULL)
435 goto exit;
436
912541b0
KS		 437 while (1) {
438 int option;
439
440 option = getopt_long(argc, argv, "xh", options, NULL);
441 if (option == -1)
442 break;
443
444 switch (option) {
445 case 'x':
446 export = 1;
447 break;
448 case 'h':
449 printf("Usage: ata_id [--export] [--help] <device>\n"
450 " --export print values as environment keys\n"
451 " --help print this help text\n\n");
452 goto exit;
453 }
454 }
455
456 node = argv[optind];
457 if (node == NULL) {
9f6445e3 458 log_error("no node specified");
912541b0
KS		 459 rc = 1;
460 goto exit;
461 }
462
c8a202b7 463 fd = open(node, O_RDONLY|O_NONBLOCK|O_CLOEXEC);
912541b0 464 if (fd < 0) {
9f6445e3 465 log_error("unable to open '%s'", node);
912541b0
KS		 466 rc = 1;
467 goto exit;
468 }
469
470 if (disk_identify(udev, fd, identify, &is_packet_device) == 0) {
471 /*
472 * fix up only the fields from the IDENTIFY data that we are going to
473 * use and copy it into the hd_driveid struct for convenience
474 */
51fc11c1 475 disk_identify_fixup_string(identify, 10, 20); /* serial */
daa9cf54 476 disk_identify_fixup_string(identify, 23, 8); /* fwrev */
51fc11c1
KS		 477 disk_identify_fixup_string(identify, 27, 40); /* model */
478 disk_identify_fixup_uint16(identify, 0); /* configuration */
479 disk_identify_fixup_uint16(identify, 75); /* queue depth */
480 disk_identify_fixup_uint16(identify, 75); /* SATA capabilities */
481 disk_identify_fixup_uint16(identify, 82); /* command set supported */
482 disk_identify_fixup_uint16(identify, 83); /* command set supported */
483 disk_identify_fixup_uint16(identify, 84); /* command set supported */
484 disk_identify_fixup_uint16(identify, 85); /* command set supported */
485 disk_identify_fixup_uint16(identify, 86); /* command set supported */
486 disk_identify_fixup_uint16(identify, 87); /* command set supported */
487 disk_identify_fixup_uint16(identify, 89); /* time required for SECURITY ERASE UNIT */
488 disk_identify_fixup_uint16(identify, 90); /* time required for enhanced SECURITY ERASE UNIT */
489 disk_identify_fixup_uint16(identify, 91); /* current APM values */
490 disk_identify_fixup_uint16(identify, 94); /* current AAM value */
491 disk_identify_fixup_uint16(identify, 128); /* device lock function */
492 disk_identify_fixup_uint16(identify, 217); /* nominal media rotation rate */
912541b0
KS		 493 memcpy(&id, identify, sizeof id);
494 } else {
495 /* If this fails, then try HDIO_GET_IDENTITY */
496 if (ioctl(fd, HDIO_GET_IDENTITY, &id) != 0) {
56f64d95 497 log_debug_errno(errno, "HDIO_GET_IDENTITY failed for '%s': %m", node);
4b50a3d0 498 rc = 2;
912541b0
KS		 499 goto close;
500 }
501 }
502 identify_words = (uint16_t *) identify;
503
504 memcpy (model, id.model, 40);
505 model[40] = '\0';
506 udev_util_encode_string(model, model_enc, sizeof(model_enc));
507 util_replace_whitespace((char *) id.model, model, 40);
508 util_replace_chars(model, NULL);
509 util_replace_whitespace((char *) id.serial_no, serial, 20);
510 util_replace_chars(serial, NULL);
511 util_replace_whitespace((char *) id.fw_rev, revision, 8);
512 util_replace_chars(revision, NULL);
513
514 if (export) {
515 /* Set this to convey the disk speaks the ATA protocol */
516 printf("ID_ATA=1\n");
517
518 if ((id.config >> 8) & 0x80) {
519 /* This is an ATAPI device */
520 switch ((id.config >> 8) & 0x1f) {
521 case 0:
522 printf("ID_TYPE=cd\n");
523 break;
524 case 1:
525 printf("ID_TYPE=tape\n");
526 break;
527 case 5:
528 printf("ID_TYPE=cd\n");
529 break;
530 case 7:
531 printf("ID_TYPE=optical\n");
532 break;
533 default:
534 printf("ID_TYPE=generic\n");
535 break;
536 }
537 } else {
538 printf("ID_TYPE=disk\n");
539 }
540 printf("ID_BUS=ata\n");
541 printf("ID_MODEL=%s\n", model);
542 printf("ID_MODEL_ENC=%s\n", model_enc);
543 printf("ID_REVISION=%s\n", revision);
544 if (serial[0] != '\0') {
545 printf("ID_SERIAL=%s_%s\n", model, serial);
546 printf("ID_SERIAL_SHORT=%s\n", serial);
547 } else {
548 printf("ID_SERIAL=%s\n", model);
549 }
550
551 if (id.command_set_1 & (1<<5)) {
552 printf ("ID_ATA_WRITE_CACHE=1\n");
553 printf ("ID_ATA_WRITE_CACHE_ENABLED=%d\n", (id.cfs_enable_1 & (1<<5)) ? 1 : 0);
554 }
555 if (id.command_set_1 & (1<<10)) {
556 printf("ID_ATA_FEATURE_SET_HPA=1\n");
557 printf("ID_ATA_FEATURE_SET_HPA_ENABLED=%d\n", (id.cfs_enable_1 & (1<<10)) ? 1 : 0);
558
559 /*
560 * TODO: use the READ NATIVE MAX ADDRESS command to get the native max address
561 * so it is easy to check whether the protected area is in use.
562 */
563 }
564 if (id.command_set_1 & (1<<3)) {
565 printf("ID_ATA_FEATURE_SET_PM=1\n");
566 printf("ID_ATA_FEATURE_SET_PM_ENABLED=%d\n", (id.cfs_enable_1 & (1<<3)) ? 1 : 0);
567 }
568 if (id.command_set_1 & (1<<1)) {
569 printf("ID_ATA_FEATURE_SET_SECURITY=1\n");
570 printf("ID_ATA_FEATURE_SET_SECURITY_ENABLED=%d\n", (id.cfs_enable_1 & (1<<1)) ? 1 : 0);
571 printf("ID_ATA_FEATURE_SET_SECURITY_ERASE_UNIT_MIN=%d\n", id.trseuc * 2);
572 if ((id.cfs_enable_1 & (1<<1))) /* enabled */ {
573 if (id.dlf & (1<<8))
574 printf("ID_ATA_FEATURE_SET_SECURITY_LEVEL=maximum\n");
575 else
576 printf("ID_ATA_FEATURE_SET_SECURITY_LEVEL=high\n");
577 }
578 if (id.dlf & (1<<5))
579 printf("ID_ATA_FEATURE_SET_SECURITY_ENHANCED_ERASE_UNIT_MIN=%d\n", id.trsEuc * 2);
580 if (id.dlf & (1<<4))
581 printf("ID_ATA_FEATURE_SET_SECURITY_EXPIRE=1\n");
582 if (id.dlf & (1<<3))
583 printf("ID_ATA_FEATURE_SET_SECURITY_FROZEN=1\n");
584 if (id.dlf & (1<<2))
585 printf("ID_ATA_FEATURE_SET_SECURITY_LOCKED=1\n");
586 }
587 if (id.command_set_1 & (1<<0)) {
588 printf("ID_ATA_FEATURE_SET_SMART=1\n");
589 printf("ID_ATA_FEATURE_SET_SMART_ENABLED=%d\n", (id.cfs_enable_1 & (1<<0)) ? 1 : 0);
590 }
591 if (id.command_set_2 & (1<<9)) {
592 printf("ID_ATA_FEATURE_SET_AAM=1\n");
593 printf("ID_ATA_FEATURE_SET_AAM_ENABLED=%d\n", (id.cfs_enable_2 & (1<<9)) ? 1 : 0);
594 printf("ID_ATA_FEATURE_SET_AAM_VENDOR_RECOMMENDED_VALUE=%d\n", id.acoustic >> 8);
595 printf("ID_ATA_FEATURE_SET_AAM_CURRENT_VALUE=%d\n", id.acoustic & 0xff);
596 }
597 if (id.command_set_2 & (1<<5)) {
598 printf("ID_ATA_FEATURE_SET_PUIS=1\n");
599 printf("ID_ATA_FEATURE_SET_PUIS_ENABLED=%d\n", (id.cfs_enable_2 & (1<<5)) ? 1 : 0);
600 }
601 if (id.command_set_2 & (1<<3)) {
602 printf("ID_ATA_FEATURE_SET_APM=1\n");
603 printf("ID_ATA_FEATURE_SET_APM_ENABLED=%d\n", (id.cfs_enable_2 & (1<<3)) ? 1 : 0);
604 if ((id.cfs_enable_2 & (1<<3)))
605 printf("ID_ATA_FEATURE_SET_APM_CURRENT_VALUE=%d\n", id.CurAPMvalues & 0xff);
606 }
607 if (id.command_set_2 & (1<<0))
608 printf("ID_ATA_DOWNLOAD_MICROCODE=1\n");
609
610 /*
611 * Word 76 indicates the capabilities of a SATA device. A PATA device shall set
612 * word 76 to 0000h or FFFFh. If word 76 is set to 0000h or FFFFh, then
613 * the device does not claim compliance with the Serial ATA specification and words
614 * 76 through 79 are not valid and shall be ignored.
615 */
616 word = *((uint16_t *) identify + 76);
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 */
633 word = *((uint16_t *) identify + 217);
634 if (word != 0x0000) {
635 if (word == 0x0001) {
636 printf ("ID_ATA_ROTATION_RATE_RPM=0\n"); /* non-rotating e.g. SSD */
637 } else if (word >= 0x0401 && word <= 0xfffe) {
638 printf ("ID_ATA_ROTATION_RATE_RPM=%d\n", word);
639 }
640 }
641
642 /*
643 * Words 108-111 contain a mandatory World Wide Name (WWN) in the NAA IEEE Registered identifier
644 * format. Word 108 bits (15:12) shall contain 5h, indicating that the naming authority is IEEE.
645 * All other values are reserved.
646 */
647 word = *((uint16_t *) identify + 108);
648 if ((word & 0xf000) == 0x5000) {
649 uint64_t wwwn;
650
651 wwwn = *((uint16_t *) identify + 108);
652 wwwn <<= 16;
653 wwwn |= *((uint16_t *) identify + 109);
654 wwwn <<= 16;
655 wwwn |= *((uint16_t *) identify + 110);
656 wwwn <<= 16;
657 wwwn |= *((uint16_t *) identify + 111);
658 printf("ID_WWN=0x%llx\n", (unsigned long long int) wwwn);
659 /* ATA devices have no vendor extension */
660 printf("ID_WWN_WITH_EXTENSION=0x%llx\n", (unsigned long long int) wwwn);
661 }
662
663 /* from Linux's include/linux/ata.h */
664 if (identify_words[0] == 0x848a || identify_words[0] == 0x844a) {
665 printf("ID_ATA_CFA=1\n");
666 } else {
667 if ((identify_words[83] & 0xc004) == 0x4004) {
668 printf("ID_ATA_CFA=1\n");
669 }
670 }
671 } else {
672 if (serial[0] != '\0')
673 printf("%s_%s\n", model, serial);
674 else
675 printf("%s\n", model);
676 }
670e4705 677close:
912541b0 678 close(fd);
670e4705 679exit:
912541b0 680 udev_unref(udev);
baa30fbc 681 log_close();
912541b0 682 return rc;
670e4705 683}
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