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build-sys: bump systemd version to 'udev version 182'
[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 *
7d563a17 4 * Copyright (C) 2005-2008 Kay Sievers <kay.sievers@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"
670e4705 46
6992637e 47#define COMMAND_TIMEOUT_MSEC (30 * 1000)
66094a4a 48
6992637e 49static int disk_scsi_inquiry_command(int fd,
912541b0
KS		 50 void *buf,
51 size_t buf_len)
66094a4a 52{
912541b0
KS		 53 struct sg_io_v4 io_v4;
54 uint8_t cdb[6];
55 uint8_t sense[32];
56 int ret;
57
58 /*
59 * INQUIRY, see SPC-4 section 6.4
60 */
61 memset(cdb, 0, sizeof(cdb));
62 cdb[0] = 0x12; /* OPERATION CODE: INQUIRY */
63 cdb[3] = (buf_len >> 8); /* ALLOCATION LENGTH */
64 cdb[4] = (buf_len & 0xff);
65
66 memset(sense, 0, sizeof(sense));
67
68 memset(&io_v4, 0, sizeof(struct sg_io_v4));
69 io_v4.guard = 'Q';
70 io_v4.protocol = BSG_PROTOCOL_SCSI;
71 io_v4.subprotocol = BSG_SUB_PROTOCOL_SCSI_CMD;
72 io_v4.request_len = sizeof (cdb);
73 io_v4.request = (uintptr_t) cdb;
74 io_v4.max_response_len = sizeof (sense);
75 io_v4.response = (uintptr_t) sense;
76 io_v4.din_xfer_len = buf_len;
77 io_v4.din_xferp = (uintptr_t) buf;
78 io_v4.timeout = COMMAND_TIMEOUT_MSEC;
79
80 ret = ioctl(fd, SG_IO, &io_v4);
81 if (ret != 0) {
82 /* could be that the driver doesn't do version 4, try version 3 */
83 if (errno == EINVAL) {
84 struct sg_io_hdr io_hdr;
85
86 memset(&io_hdr, 0, sizeof(struct sg_io_hdr));
87 io_hdr.interface_id = 'S';
88 io_hdr.cmdp = (unsigned char*) cdb;
89 io_hdr.cmd_len = sizeof (cdb);
90 io_hdr.dxferp = buf;
91 io_hdr.dxfer_len = buf_len;
92 io_hdr.sbp = sense;
93 io_hdr.mx_sb_len = sizeof (sense);
94 io_hdr.dxfer_direction = SG_DXFER_FROM_DEV;
95 io_hdr.timeout = COMMAND_TIMEOUT_MSEC;
96
97 ret = ioctl(fd, SG_IO, &io_hdr);
98 if (ret != 0)
99 goto out;
100
101 /* even if the ioctl succeeds, we need to check the return value */
102 if (!(io_hdr.status == 0 &&
103 io_hdr.host_status == 0 &&
104 io_hdr.driver_status == 0)) {
105 errno = EIO;
106 ret = -1;
107 goto out;
108 }
109 } else {
110 goto out;
111 }
112 }
113
114 /* even if the ioctl succeeds, we need to check the return value */
115 if (!(io_v4.device_status == 0 &&
116 io_v4.transport_status == 0 &&
117 io_v4.driver_status == 0)) {
118 errno = EIO;
119 ret = -1;
120 goto out;
121 }
6992637e
DZ		 122
123 out:
912541b0 124 return ret;
66094a4a
DZ		 125}
126
912541b0
KS		 127static int disk_identify_command(int fd,
128 void *buf,
129 size_t buf_len)
66094a4a 130{
912541b0
KS		 131 struct sg_io_v4 io_v4;
132 uint8_t cdb[12];
133 uint8_t sense[32];
134 uint8_t *desc = sense+8;
135 int ret;
136
137 /*
138 * ATA Pass-Through 12 byte command, as described in
139 *
140 * T10 04-262r8 ATA Command Pass-Through
141 *
142 * from http://www.t10.org/ftp/t10/document.04/04-262r8.pdf
143 */
144 memset(cdb, 0, sizeof(cdb));
145 cdb[0] = 0xa1; /* OPERATION CODE: 12 byte pass through */
146 cdb[1] = 4 << 1; /* PROTOCOL: PIO Data-in */
147 cdb[2] = 0x2e; /* OFF_LINE=0, CK_COND=1, T_DIR=1, BYT_BLOK=1, T_LENGTH=2 */
148 cdb[3] = 0; /* FEATURES */
149 cdb[4] = 1; /* SECTORS */
150 cdb[5] = 0; /* LBA LOW */
151 cdb[6] = 0; /* LBA MID */
152 cdb[7] = 0; /* LBA HIGH */
153 cdb[8] = 0 & 0x4F; /* SELECT */
154 cdb[9] = 0xEC; /* Command: ATA IDENTIFY DEVICE */;
155 memset(sense, 0, sizeof(sense));
156
157 memset(&io_v4, 0, sizeof(struct sg_io_v4));
158 io_v4.guard = 'Q';
159 io_v4.protocol = BSG_PROTOCOL_SCSI;
160 io_v4.subprotocol = BSG_SUB_PROTOCOL_SCSI_CMD;
161 io_v4.request_len = sizeof (cdb);
162 io_v4.request = (uintptr_t) cdb;
163 io_v4.max_response_len = sizeof (sense);
164 io_v4.response = (uintptr_t) sense;
165 io_v4.din_xfer_len = buf_len;
166 io_v4.din_xferp = (uintptr_t) buf;
167 io_v4.timeout = COMMAND_TIMEOUT_MSEC;
168
169 ret = ioctl(fd, SG_IO, &io_v4);
170 if (ret != 0) {
171 /* could be that the driver doesn't do version 4, try version 3 */
172 if (errno == EINVAL) {
173 struct sg_io_hdr io_hdr;
174
175 memset(&io_hdr, 0, sizeof(struct sg_io_hdr));
176 io_hdr.interface_id = 'S';
177 io_hdr.cmdp = (unsigned char*) cdb;
178 io_hdr.cmd_len = sizeof (cdb);
179 io_hdr.dxferp = buf;
180 io_hdr.dxfer_len = buf_len;
181 io_hdr.sbp = sense;
182 io_hdr.mx_sb_len = sizeof (sense);
183 io_hdr.dxfer_direction = SG_DXFER_FROM_DEV;
184 io_hdr.timeout = COMMAND_TIMEOUT_MSEC;
185
186 ret = ioctl(fd, SG_IO, &io_hdr);
187 if (ret != 0)
188 goto out;
189 } else {
190 goto out;
191 }
192 }
193
194 if (!(sense[0] == 0x72 && desc[0] == 0x9 && desc[1] == 0x0c)) {
195 errno = EIO;
196 ret = -1;
197 goto out;
198 }
66094a4a 199
6992637e 200 out:
912541b0 201 return ret;
66094a4a
DZ		 202}
203
912541b0
KS		 204static int disk_identify_packet_device_command(int fd,
205 void *buf,
206 size_t buf_len)
560de575 207{
912541b0
KS		 208 struct sg_io_v4 io_v4;
209 uint8_t cdb[16];
210 uint8_t sense[32];
211 uint8_t *desc = sense+8;
212 int ret;
213
214 /*
215 * ATA Pass-Through 16 byte command, as described in
216 *
217 * T10 04-262r8 ATA Command Pass-Through
218 *
219 * from http://www.t10.org/ftp/t10/document.04/04-262r8.pdf
220 */
221 memset(cdb, 0, sizeof(cdb));
222 cdb[0] = 0x85; /* OPERATION CODE: 16 byte pass through */
223 cdb[1] = 4 << 1; /* PROTOCOL: PIO Data-in */
224 cdb[2] = 0x2e; /* OFF_LINE=0, CK_COND=1, T_DIR=1, BYT_BLOK=1, T_LENGTH=2 */
225 cdb[3] = 0; /* FEATURES */
226 cdb[4] = 0; /* FEATURES */
227 cdb[5] = 0; /* SECTORS */
228 cdb[6] = 1; /* SECTORS */
229 cdb[7] = 0; /* LBA LOW */
230 cdb[8] = 0; /* LBA LOW */
231 cdb[9] = 0; /* LBA MID */
232 cdb[10] = 0; /* LBA MID */
233 cdb[11] = 0; /* LBA HIGH */
234 cdb[12] = 0; /* LBA HIGH */
235 cdb[13] = 0; /* DEVICE */
236 cdb[14] = 0xA1; /* Command: ATA IDENTIFY PACKET DEVICE */;
237 cdb[15] = 0; /* CONTROL */
238 memset(sense, 0, sizeof(sense));
239
240 memset(&io_v4, 0, sizeof(struct sg_io_v4));
241 io_v4.guard = 'Q';
242 io_v4.protocol = BSG_PROTOCOL_SCSI;
243 io_v4.subprotocol = BSG_SUB_PROTOCOL_SCSI_CMD;
244 io_v4.request_len = sizeof (cdb);
245 io_v4.request = (uintptr_t) cdb;
246 io_v4.max_response_len = sizeof (sense);
247 io_v4.response = (uintptr_t) sense;
248 io_v4.din_xfer_len = buf_len;
249 io_v4.din_xferp = (uintptr_t) buf;
250 io_v4.timeout = COMMAND_TIMEOUT_MSEC;
251
252 ret = ioctl(fd, SG_IO, &io_v4);
253 if (ret != 0) {
254 /* could be that the driver doesn't do version 4, try version 3 */
255 if (errno == EINVAL) {
256 struct sg_io_hdr io_hdr;
257
258 memset(&io_hdr, 0, sizeof(struct sg_io_hdr));
259 io_hdr.interface_id = 'S';
260 io_hdr.cmdp = (unsigned char*) cdb;
261 io_hdr.cmd_len = sizeof (cdb);
262 io_hdr.dxferp = buf;
263 io_hdr.dxfer_len = buf_len;
264 io_hdr.sbp = sense;
265 io_hdr.mx_sb_len = sizeof (sense);
266 io_hdr.dxfer_direction = SG_DXFER_FROM_DEV;
267 io_hdr.timeout = COMMAND_TIMEOUT_MSEC;
268
269 ret = ioctl(fd, SG_IO, &io_hdr);
270 if (ret != 0)
271 goto out;
272 } else {
273 goto out;
274 }
275 }
276
277 if (!(sense[0] == 0x72 && desc[0] == 0x9 && desc[1] == 0x0c)) {
278 errno = EIO;
279 ret = -1;
280 goto out;
281 }
560de575
DZ		 282
283 out:
912541b0 284 return ret;
560de575
DZ		 285}
286
66094a4a
DZ		 287/**
288 * disk_identify_get_string:
289 * @identify: A block of IDENTIFY data
290 * @offset_words: Offset of the string to get, in words.
291 * @dest: Destination buffer for the string.
292 * @dest_len: Length of destination buffer, in bytes.
293 *
294 * Copies the ATA string from @identify located at @offset_words into @dest.
295 */
09db3f5b
KS		 296static void disk_identify_get_string(uint8_t identify[512],
297 unsigned int offset_words,
298 char *dest,
299 size_t dest_len)
66094a4a 300{
912541b0
KS		 301 unsigned int c1;
302 unsigned int c2;
303
912541b0 304 while (dest_len > 0) {
2b2823b4
AS		 305 c1 = identify[offset_words * 2 + 1];
306 c2 = identify[offset_words * 2];
912541b0
KS		 307 *dest = c1;
308 dest++;
309 *dest = c2;
310 dest++;
311 offset_words++;
312 dest_len -= 2;
313 }
66094a4a
DZ		 314}
315
09db3f5b
KS		 316static void disk_identify_fixup_string(uint8_t identify[512],
317 unsigned int offset_words,
318 size_t len)
66094a4a 319{
912541b0
KS		 320 disk_identify_get_string(identify, offset_words,
321 (char *) identify + offset_words * 2, len);
66094a4a
DZ		 322}
323
324static void disk_identify_fixup_uint16 (uint8_t identify[512], unsigned int offset_words)
325{
912541b0 326 uint16_t *p;
66094a4a 327
912541b0
KS		 328 p = (uint16_t *) identify;
329 p[offset_words] = le16toh (p[offset_words]);
66094a4a
DZ		 330}
331
332/**
333 * disk_identify:
334 * @udev: The libudev context.
335 * @fd: File descriptor for the block device.
336 * @out_identify: Return location for IDENTIFY data.
560de575 337 * @out_is_packet_device: Return location for whether returned data is from a IDENTIFY PACKET DEVICE.
66094a4a 338 *
560de575
DZ		 339 * Sends the IDENTIFY DEVICE or IDENTIFY PACKET DEVICE command to the
340 * device represented by @fd. If successful, then the result will be
341 * copied into @out_identify and @out_is_packet_device.
66094a4a
DZ		 342 *
343 * This routine is based on code from libatasmart, Copyright 2008
344 * Lennart Poettering, LGPL v2.1.
345 *
560de575
DZ		 346 * Returns: 0 if the data was successfully obtained, otherwise
347 * non-zero with errno set.
66094a4a 348 */
09db3f5b
KS		 349static int disk_identify(struct udev *udev,
350 int fd,
351 uint8_t out_identify[512],
352 int *out_is_packet_device)
66094a4a 353{
912541b0
KS		 354 int ret;
355 uint8_t inquiry_buf[36];
356 int peripheral_device_type;
357 int all_nul_bytes;
358 int n;
359 int is_packet_device;
360
912541b0
KS		 361 /* init results */
362 ret = -1;
09db3f5b 363 memset(out_identify, '\0', 512);
912541b0
KS		 364 is_packet_device = 0;
365
366 /* If we were to use ATA PASS_THROUGH (12) on an ATAPI device
367 * we could accidentally blank media. This is because MMC's BLANK
368 * command has the same op-code (0x61).
369 *
370 * To prevent this from happening we bail out if the device
371 * isn't a Direct Access Block Device, e.g. SCSI type 0x00
372 * (CD/DVD devices are type 0x05). So we send a SCSI INQUIRY
373 * command first... libata is handling this via its SCSI
374 * emulation layer.
375 *
376 * This also ensures that we're actually dealing with a device
377 * that understands SCSI commands.
378 *
379 * (Yes, it is a bit perverse that we're tunneling the ATA
380 * command through SCSI and relying on the ATA driver
381 * emulating SCSI well-enough...)
382 *
383 * (See commit 160b069c25690bfb0c785994c7c3710289179107 for
384 * the original bug-fix and see http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=556635
385 * for the original bug-report.)
386 */
387 ret = disk_scsi_inquiry_command (fd, inquiry_buf, sizeof (inquiry_buf));
388 if (ret != 0)
389 goto out;
390
391 /* SPC-4, section 6.4.2: Standard INQUIRY data */
392 peripheral_device_type = inquiry_buf[0] & 0x1f;
393 if (peripheral_device_type == 0x05)
394 {
395 is_packet_device = 1;
396 ret = disk_identify_packet_device_command(fd, out_identify, 512);
397 goto check_nul_bytes;
398 }
399 if (peripheral_device_type != 0x00) {
400 ret = -1;
401 errno = EIO;
402 goto out;
403 }
404
405 /* OK, now issue the IDENTIFY DEVICE command */
406 ret = disk_identify_command(fd, out_identify, 512);
407 if (ret != 0)
408 goto out;
66094a4a 409
560de575 410 check_nul_bytes:
912541b0
KS		 411 /* Check if IDENTIFY data is all NUL bytes - if so, bail */
412 all_nul_bytes = 1;
413 for (n = 0; n < 512; n++) {
414 if (out_identify[n] != '\0') {
415 all_nul_bytes = 0;
416 break;
417 }
418 }
419
420 if (all_nul_bytes) {
421 ret = -1;
422 errno = EIO;
423 goto out;
424 }
66094a4a 425
6992637e 426out:
912541b0
KS		 427 if (out_is_packet_device != NULL)
428 *out_is_packet_device = is_packet_device;
429 return ret;
66094a4a
DZ		 430}
431
7d563a17 432static void log_fn(struct udev *udev, int priority,
912541b0
KS		 433 const char *file, int line, const char *fn,
434 const char *format, va_list args)
670e4705 435{
912541b0 436 vsyslog(priority, format, args);
670e4705 437}
670e4705 438
670e4705
KS		 439int main(int argc, char *argv[])
440{
912541b0
KS		 441 struct udev *udev;
442 struct hd_driveid id;
443 uint8_t identify[512];
444 uint16_t *identify_words;
445 char model[41];
446 char model_enc[256];
447 char serial[21];
448 char revision[9];
449 const char *node = NULL;
450 int export = 0;
451 int fd;
452 uint16_t word;
453 int rc = 0;
454 int is_packet_device = 0;
455 static const struct option options[] = {
456 { "export", no_argument, NULL, 'x' },
457 { "help", no_argument, NULL, 'h' },
458 {}
459 };
460
461 udev = udev_new();
462 if (udev == NULL)
463 goto exit;
464
465 udev_log_init("ata_id");
466 udev_set_log_fn(udev, log_fn);
467
468 while (1) {
469 int option;
470
471 option = getopt_long(argc, argv, "xh", options, NULL);
472 if (option == -1)
473 break;
474
475 switch (option) {
476 case 'x':
477 export = 1;
478 break;
479 case 'h':
480 printf("Usage: ata_id [--export] [--help] <device>\n"
481 " --export print values as environment keys\n"
482 " --help print this help text\n\n");
483 goto exit;
484 }
485 }
486
487 node = argv[optind];
488 if (node == NULL) {
489 err(udev, "no node specified\n");
490 rc = 1;
491 goto exit;
492 }
493
494 fd = open(node, O_RDONLY|O_NONBLOCK);
495 if (fd < 0) {
496 err(udev, "unable to open '%s'\n", node);
497 rc = 1;
498 goto exit;
499 }
500
501 if (disk_identify(udev, fd, identify, &is_packet_device) == 0) {
502 /*
503 * fix up only the fields from the IDENTIFY data that we are going to
504 * use and copy it into the hd_driveid struct for convenience
505 */
51fc11c1
KS		 506 disk_identify_fixup_string(identify, 10, 20); /* serial */
507 disk_identify_fixup_string(identify, 23, 6); /* fwrev */
508 disk_identify_fixup_string(identify, 27, 40); /* model */
509 disk_identify_fixup_uint16(identify, 0); /* configuration */
510 disk_identify_fixup_uint16(identify, 75); /* queue depth */
511 disk_identify_fixup_uint16(identify, 75); /* SATA capabilities */
512 disk_identify_fixup_uint16(identify, 82); /* command set supported */
513 disk_identify_fixup_uint16(identify, 83); /* command set supported */
514 disk_identify_fixup_uint16(identify, 84); /* command set supported */
515 disk_identify_fixup_uint16(identify, 85); /* command set supported */
516 disk_identify_fixup_uint16(identify, 86); /* command set supported */
517 disk_identify_fixup_uint16(identify, 87); /* command set supported */
518 disk_identify_fixup_uint16(identify, 89); /* time required for SECURITY ERASE UNIT */
519 disk_identify_fixup_uint16(identify, 90); /* time required for enhanced SECURITY ERASE UNIT */
520 disk_identify_fixup_uint16(identify, 91); /* current APM values */
521 disk_identify_fixup_uint16(identify, 94); /* current AAM value */
522 disk_identify_fixup_uint16(identify, 128); /* device lock function */
523 disk_identify_fixup_uint16(identify, 217); /* nominal media rotation rate */
912541b0
KS		 524 memcpy(&id, identify, sizeof id);
525 } else {
526 /* If this fails, then try HDIO_GET_IDENTITY */
527 if (ioctl(fd, HDIO_GET_IDENTITY, &id) != 0) {
4b50a3d0
KS		 528 info(udev, "HDIO_GET_IDENTITY failed for '%s': %m\n", node);
529 rc = 2;
912541b0
KS		 530 goto close;
531 }
532 }
533 identify_words = (uint16_t *) identify;
534
535 memcpy (model, id.model, 40);
536 model[40] = '\0';
537 udev_util_encode_string(model, model_enc, sizeof(model_enc));
538 util_replace_whitespace((char *) id.model, model, 40);
539 util_replace_chars(model, NULL);
540 util_replace_whitespace((char *) id.serial_no, serial, 20);
541 util_replace_chars(serial, NULL);
542 util_replace_whitespace((char *) id.fw_rev, revision, 8);
543 util_replace_chars(revision, NULL);
544
545 if (export) {
546 /* Set this to convey the disk speaks the ATA protocol */
547 printf("ID_ATA=1\n");
548
549 if ((id.config >> 8) & 0x80) {
550 /* This is an ATAPI device */
551 switch ((id.config >> 8) & 0x1f) {
552 case 0:
553 printf("ID_TYPE=cd\n");
554 break;
555 case 1:
556 printf("ID_TYPE=tape\n");
557 break;
558 case 5:
559 printf("ID_TYPE=cd\n");
560 break;
561 case 7:
562 printf("ID_TYPE=optical\n");
563 break;
564 default:
565 printf("ID_TYPE=generic\n");
566 break;
567 }
568 } else {
569 printf("ID_TYPE=disk\n");
570 }
571 printf("ID_BUS=ata\n");
572 printf("ID_MODEL=%s\n", model);
573 printf("ID_MODEL_ENC=%s\n", model_enc);
574 printf("ID_REVISION=%s\n", revision);
575 if (serial[0] != '\0') {
576 printf("ID_SERIAL=%s_%s\n", model, serial);
577 printf("ID_SERIAL_SHORT=%s\n", serial);
578 } else {
579 printf("ID_SERIAL=%s\n", model);
580 }
581
582 if (id.command_set_1 & (1<<5)) {
583 printf ("ID_ATA_WRITE_CACHE=1\n");
584 printf ("ID_ATA_WRITE_CACHE_ENABLED=%d\n", (id.cfs_enable_1 & (1<<5)) ? 1 : 0);
585 }
586 if (id.command_set_1 & (1<<10)) {
587 printf("ID_ATA_FEATURE_SET_HPA=1\n");
588 printf("ID_ATA_FEATURE_SET_HPA_ENABLED=%d\n", (id.cfs_enable_1 & (1<<10)) ? 1 : 0);
589
590 /*
591 * TODO: use the READ NATIVE MAX ADDRESS command to get the native max address
592 * so it is easy to check whether the protected area is in use.
593 */
594 }
595 if (id.command_set_1 & (1<<3)) {
596 printf("ID_ATA_FEATURE_SET_PM=1\n");
597 printf("ID_ATA_FEATURE_SET_PM_ENABLED=%d\n", (id.cfs_enable_1 & (1<<3)) ? 1 : 0);
598 }
599 if (id.command_set_1 & (1<<1)) {
600 printf("ID_ATA_FEATURE_SET_SECURITY=1\n");
601 printf("ID_ATA_FEATURE_SET_SECURITY_ENABLED=%d\n", (id.cfs_enable_1 & (1<<1)) ? 1 : 0);
602 printf("ID_ATA_FEATURE_SET_SECURITY_ERASE_UNIT_MIN=%d\n", id.trseuc * 2);
603 if ((id.cfs_enable_1 & (1<<1))) /* enabled */ {
604 if (id.dlf & (1<<8))
605 printf("ID_ATA_FEATURE_SET_SECURITY_LEVEL=maximum\n");
606 else
607 printf("ID_ATA_FEATURE_SET_SECURITY_LEVEL=high\n");
608 }
609 if (id.dlf & (1<<5))
610 printf("ID_ATA_FEATURE_SET_SECURITY_ENHANCED_ERASE_UNIT_MIN=%d\n", id.trsEuc * 2);
611 if (id.dlf & (1<<4))
612 printf("ID_ATA_FEATURE_SET_SECURITY_EXPIRE=1\n");
613 if (id.dlf & (1<<3))
614 printf("ID_ATA_FEATURE_SET_SECURITY_FROZEN=1\n");
615 if (id.dlf & (1<<2))
616 printf("ID_ATA_FEATURE_SET_SECURITY_LOCKED=1\n");
617 }
618 if (id.command_set_1 & (1<<0)) {
619 printf("ID_ATA_FEATURE_SET_SMART=1\n");
620 printf("ID_ATA_FEATURE_SET_SMART_ENABLED=%d\n", (id.cfs_enable_1 & (1<<0)) ? 1 : 0);
621 }
622 if (id.command_set_2 & (1<<9)) {
623 printf("ID_ATA_FEATURE_SET_AAM=1\n");
624 printf("ID_ATA_FEATURE_SET_AAM_ENABLED=%d\n", (id.cfs_enable_2 & (1<<9)) ? 1 : 0);
625 printf("ID_ATA_FEATURE_SET_AAM_VENDOR_RECOMMENDED_VALUE=%d\n", id.acoustic >> 8);
626 printf("ID_ATA_FEATURE_SET_AAM_CURRENT_VALUE=%d\n", id.acoustic & 0xff);
627 }
628 if (id.command_set_2 & (1<<5)) {
629 printf("ID_ATA_FEATURE_SET_PUIS=1\n");
630 printf("ID_ATA_FEATURE_SET_PUIS_ENABLED=%d\n", (id.cfs_enable_2 & (1<<5)) ? 1 : 0);
631 }
632 if (id.command_set_2 & (1<<3)) {
633 printf("ID_ATA_FEATURE_SET_APM=1\n");
634 printf("ID_ATA_FEATURE_SET_APM_ENABLED=%d\n", (id.cfs_enable_2 & (1<<3)) ? 1 : 0);
635 if ((id.cfs_enable_2 & (1<<3)))
636 printf("ID_ATA_FEATURE_SET_APM_CURRENT_VALUE=%d\n", id.CurAPMvalues & 0xff);
637 }
638 if (id.command_set_2 & (1<<0))
639 printf("ID_ATA_DOWNLOAD_MICROCODE=1\n");
640
641 /*
642 * Word 76 indicates the capabilities of a SATA device. A PATA device shall set
643 * word 76 to 0000h or FFFFh. If word 76 is set to 0000h or FFFFh, then
644 * the device does not claim compliance with the Serial ATA specification and words
645 * 76 through 79 are not valid and shall be ignored.
646 */
647 word = *((uint16_t *) identify + 76);
648 if (word != 0x0000 && word != 0xffff) {
649 printf("ID_ATA_SATA=1\n");
650 /*
651 * If bit 2 of word 76 is set to one, then the device supports the Gen2
652 * signaling rate of 3.0 Gb/s (see SATA 2.6).
653 *
654 * If bit 1 of word 76 is set to one, then the device supports the Gen1
655 * signaling rate of 1.5 Gb/s (see SATA 2.6).
656 */
657 if (word & (1<<2))
658 printf("ID_ATA_SATA_SIGNAL_RATE_GEN2=1\n");
659 if (word & (1<<1))
660 printf("ID_ATA_SATA_SIGNAL_RATE_GEN1=1\n");
661 }
662
663 /* Word 217 indicates the nominal media rotation rate of the device */
664 word = *((uint16_t *) identify + 217);
665 if (word != 0x0000) {
666 if (word == 0x0001) {
667 printf ("ID_ATA_ROTATION_RATE_RPM=0\n"); /* non-rotating e.g. SSD */
668 } else if (word >= 0x0401 && word <= 0xfffe) {
669 printf ("ID_ATA_ROTATION_RATE_RPM=%d\n", word);
670 }
671 }
672
673 /*
674 * Words 108-111 contain a mandatory World Wide Name (WWN) in the NAA IEEE Registered identifier
675 * format. Word 108 bits (15:12) shall contain 5h, indicating that the naming authority is IEEE.
676 * All other values are reserved.
677 */
678 word = *((uint16_t *) identify + 108);
679 if ((word & 0xf000) == 0x5000) {
680 uint64_t wwwn;
681
682 wwwn = *((uint16_t *) identify + 108);
683 wwwn <<= 16;
684 wwwn |= *((uint16_t *) identify + 109);
685 wwwn <<= 16;
686 wwwn |= *((uint16_t *) identify + 110);
687 wwwn <<= 16;
688 wwwn |= *((uint16_t *) identify + 111);
689 printf("ID_WWN=0x%llx\n", (unsigned long long int) wwwn);
690 /* ATA devices have no vendor extension */
691 printf("ID_WWN_WITH_EXTENSION=0x%llx\n", (unsigned long long int) wwwn);
692 }
693
694 /* from Linux's include/linux/ata.h */
695 if (identify_words[0] == 0x848a || identify_words[0] == 0x844a) {
696 printf("ID_ATA_CFA=1\n");
697 } else {
698 if ((identify_words[83] & 0xc004) == 0x4004) {
699 printf("ID_ATA_CFA=1\n");
700 }
701 }
702 } else {
703 if (serial[0] != '\0')
704 printf("%s_%s\n", model, serial);
705 else
706 printf("%s\n", model);
707 }
670e4705 708close:
912541b0 709 close(fd);
670e4705 710exit:
912541b0
KS		 711 udev_unref(udev);
712 udev_log_close();
713 return rc;
670e4705 714}
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