2 * cdrom_id - optical drive and media information prober
4 * Copyright (C) 2008-2010 Kay Sievers <kay@vrfy.org>
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
31 #include <sys/types.h>
34 #include <sys/ioctl.h>
35 #include <linux/cdrom.h>
38 #include "libudev-private.h"
42 static void log_fn(struct udev *udev, int priority,
43 const char *file, int line, const char *fn,
44 const char *format, va_list args)
47 fprintf(stderr, "%s: ", fn);
48 vfprintf(stderr, format, args);
50 vsyslog(priority, format, args);
55 static unsigned int cd_cd_rom;
56 static unsigned int cd_cd_r;
57 static unsigned int cd_cd_rw;
58 static unsigned int cd_dvd_rom;
59 static unsigned int cd_dvd_r;
60 static unsigned int cd_dvd_rw;
61 static unsigned int cd_dvd_ram;
62 static unsigned int cd_dvd_plus_r;
63 static unsigned int cd_dvd_plus_rw;
64 static unsigned int cd_dvd_plus_r_dl;
65 static unsigned int cd_dvd_plus_rw_dl;
66 static unsigned int cd_bd;
67 static unsigned int cd_bd_r;
68 static unsigned int cd_bd_re;
69 static unsigned int cd_hddvd;
70 static unsigned int cd_hddvd_r;
71 static unsigned int cd_hddvd_rw;
72 static unsigned int cd_mo;
73 static unsigned int cd_mrw;
74 static unsigned int cd_mrw_w;
77 static unsigned int cd_media;
78 static unsigned int cd_media_cd_rom;
79 static unsigned int cd_media_cd_r;
80 static unsigned int cd_media_cd_rw;
81 static unsigned int cd_media_dvd_rom;
82 static unsigned int cd_media_dvd_r;
83 static unsigned int cd_media_dvd_rw;
84 static unsigned int cd_media_dvd_rw_ro; /* restricted overwrite mode */
85 static unsigned int cd_media_dvd_rw_seq; /* sequential mode */
86 static unsigned int cd_media_dvd_ram;
87 static unsigned int cd_media_dvd_plus_r;
88 static unsigned int cd_media_dvd_plus_rw;
89 static unsigned int cd_media_dvd_plus_r_dl;
90 static unsigned int cd_media_dvd_plus_rw_dl;
91 static unsigned int cd_media_bd;
92 static unsigned int cd_media_bd_r;
93 static unsigned int cd_media_bd_re;
94 static unsigned int cd_media_hddvd;
95 static unsigned int cd_media_hddvd_r;
96 static unsigned int cd_media_hddvd_rw;
97 static unsigned int cd_media_mo;
98 static unsigned int cd_media_mrw;
99 static unsigned int cd_media_mrw_w;
101 static const char *cd_media_state = NULL;
102 static unsigned int cd_media_session_next;
103 static unsigned int cd_media_session_count;
104 static unsigned int cd_media_track_count;
105 static unsigned int cd_media_track_count_data;
106 static unsigned int cd_media_track_count_audio;
107 static unsigned long long int cd_media_session_last_offset;
109 #define ERRCODE(s) ((((s)[2] & 0x0F) << 16) | ((s)[12] << 8) | ((s)[13]))
110 #define SK(errcode) (((errcode) >> 16) & 0xF)
111 #define ASC(errcode) (((errcode) >> 8) & 0xFF)
112 #define ASCQ(errcode) ((errcode) & 0xFF)
114 static bool is_mounted(const char *device)
119 bool mounted = false;
121 if (stat(device, &statbuf) < 0)
124 fp = fopen("/proc/self/mountinfo", "re");
127 while (fscanf(fp, "%*s %*s %i:%i %*[^\n]", &maj, &min) == 2) {
128 if (makedev(maj, min) == statbuf.st_rdev) {
137 static void info_scsi_cmd_err(struct udev *udev, const char *cmd, int err)
140 log_debug("%s failed\n", cmd);
143 log_debug("%s failed with SK=%Xh/ASC=%02Xh/ACQ=%02Xh\n", cmd, SK(err), ASC(err), ASCQ(err));
147 struct cdrom_generic_command cgc;
149 struct request_sense s;
152 struct sg_io_hdr sg_io;
155 static void scsi_cmd_init(struct udev *udev, struct scsi_cmd *cmd)
157 memset(cmd, 0x00, sizeof(struct scsi_cmd));
159 cmd->cgc.sense = &cmd->_sense.s;
160 cmd->sg_io.interface_id = 'S';
161 cmd->sg_io.mx_sb_len = sizeof(cmd->_sense);
162 cmd->sg_io.cmdp = cmd->cgc.cmd;
163 cmd->sg_io.sbp = cmd->_sense.u;
164 cmd->sg_io.flags = SG_FLAG_LUN_INHIBIT | SG_FLAG_DIRECT_IO;
167 static void scsi_cmd_set(struct udev *udev, struct scsi_cmd *cmd, size_t i, unsigned char arg)
169 cmd->sg_io.cmd_len = i + 1;
170 cmd->cgc.cmd[i] = arg;
173 #define CHECK_CONDITION 0x01
175 static int scsi_cmd_run(struct udev *udev, struct scsi_cmd *cmd, int fd, unsigned char *buf, size_t bufsize)
180 cmd->sg_io.dxferp = buf;
181 cmd->sg_io.dxfer_len = bufsize;
182 cmd->sg_io.dxfer_direction = SG_DXFER_FROM_DEV;
184 cmd->sg_io.dxfer_direction = SG_DXFER_NONE;
186 if (ioctl(fd, SG_IO, &cmd->sg_io))
189 if ((cmd->sg_io.info & SG_INFO_OK_MASK) != SG_INFO_OK) {
192 if (cmd->sg_io.masked_status & CHECK_CONDITION) {
193 ret = ERRCODE(cmd->_sense.u);
201 static int media_lock(struct udev *udev, int fd, bool lock)
205 /* disable the kernel's lock logic */
206 err = ioctl(fd, CDROM_CLEAR_OPTIONS, CDO_LOCK);
208 log_debug("CDROM_CLEAR_OPTIONS, CDO_LOCK failed\n");
210 err = ioctl(fd, CDROM_LOCKDOOR, lock ? 1 : 0);
212 log_debug("CDROM_LOCKDOOR failed\n");
217 static int media_eject(struct udev *udev, int fd)
222 scsi_cmd_init(udev, &sc);
223 scsi_cmd_set(udev, &sc, 0, 0x1b);
224 scsi_cmd_set(udev, &sc, 4, 0x02);
225 scsi_cmd_set(udev, &sc, 5, 0);
226 err = scsi_cmd_run(udev, &sc, fd, NULL, 0);
228 info_scsi_cmd_err(udev, "START_STOP_UNIT", err);
234 static int cd_capability_compat(struct udev *udev, int fd)
238 capability = ioctl(fd, CDROM_GET_CAPABILITY, NULL);
239 if (capability < 0) {
240 log_debug("CDROM_GET_CAPABILITY failed\n");
244 if (capability & CDC_CD_R)
246 if (capability & CDC_CD_RW)
248 if (capability & CDC_DVD)
250 if (capability & CDC_DVD_R)
252 if (capability & CDC_DVD_RAM)
254 if (capability & CDC_MRW)
256 if (capability & CDC_MRW_W)
261 static int cd_media_compat(struct udev *udev, int fd)
263 if (ioctl(fd, CDROM_DRIVE_STATUS, CDSL_CURRENT) != CDS_DISC_OK) {
264 log_debug("CDROM_DRIVE_STATUS != CDS_DISC_OK\n");
271 static int cd_inquiry(struct udev *udev, int fd)
274 unsigned char inq[128];
277 scsi_cmd_init(udev, &sc);
278 scsi_cmd_set(udev, &sc, 0, 0x12);
279 scsi_cmd_set(udev, &sc, 4, 36);
280 scsi_cmd_set(udev, &sc, 5, 0);
281 err = scsi_cmd_run(udev, &sc, fd, inq, 36);
283 info_scsi_cmd_err(udev, "INQUIRY", err);
287 if ((inq[0] & 0x1F) != 5) {
288 log_debug("not an MMC unit\n");
292 log_debug("INQUIRY: [%.8s][%.16s][%.4s]\n", inq + 8, inq + 16, inq + 32);
296 static void feature_profile_media(struct udev *udev, int cur_profile)
298 switch (cur_profile) {
302 log_debug("profile 0x%02x \n", cur_profile);
307 log_debug("profile 0x%02x media_cd_rom\n", cur_profile);
312 log_debug("profile 0x%02x media_cd_r\n", cur_profile);
317 log_debug("profile 0x%02x media_cd_rw\n", cur_profile);
322 log_debug("profile 0x%02x media_dvd_ro\n", cur_profile);
324 cd_media_dvd_rom = 1;
327 log_debug("profile 0x%02x media_dvd_r\n", cur_profile);
332 log_debug("profile 0x%02x media_dvd_ram\n", cur_profile);
334 cd_media_dvd_ram = 1;
337 log_debug("profile 0x%02x media_dvd_rw_ro\n", cur_profile);
340 cd_media_dvd_rw_ro = 1;
343 log_debug("profile 0x%02x media_dvd_rw_seq\n", cur_profile);
346 cd_media_dvd_rw_seq = 1;
349 log_debug("profile 0x%02x media_dvd_plus_r\n", cur_profile);
351 cd_media_dvd_plus_r = 1;
354 log_debug("profile 0x%02x media_dvd_plus_rw\n", cur_profile);
356 cd_media_dvd_plus_rw = 1;
359 log_debug("profile 0x%02x media_dvd_plus_rw_dl\n", cur_profile);
361 cd_media_dvd_plus_rw_dl = 1;
364 log_debug("profile 0x%02x media_dvd_plus_r_dl\n", cur_profile);
366 cd_media_dvd_plus_r_dl = 1;
369 log_debug("profile 0x%02x media_bd\n", cur_profile);
375 log_debug("profile 0x%02x media_bd_r\n", cur_profile);
380 log_debug("profile 0x%02x media_bd_re\n", cur_profile);
385 log_debug("profile 0x%02x media_hddvd\n", cur_profile);
390 log_debug("profile 0x%02x media_hddvd_r\n", cur_profile);
392 cd_media_hddvd_r = 1;
395 log_debug("profile 0x%02x media_hddvd_rw\n", cur_profile);
397 cd_media_hddvd_rw = 1;
400 log_debug("profile 0x%02x <ignored>\n", cur_profile);
405 static int feature_profiles(struct udev *udev, const unsigned char *profiles, size_t size)
409 for (i = 0; i+4 <= size; i += 4) {
412 profile = profiles[i] << 8 | profiles[i+1];
417 log_debug("profile 0x%02x mo\n", profile);
421 log_debug("profile 0x%02x cd_rom\n", profile);
425 log_debug("profile 0x%02x cd_r\n", profile);
429 log_debug("profile 0x%02x cd_rw\n", profile);
433 log_debug("profile 0x%02x dvd_rom\n", profile);
437 log_debug("profile 0x%02x dvd_ram\n", profile);
442 log_debug("profile 0x%02x dvd_rw\n", profile);
446 log_debug("profile 0x%02x dvd_plus_r\n", profile);
450 log_debug("profile 0x%02x dvd_plus_rw\n", profile);
454 log_debug("profile 0x%02x dvd_plus_rw_dl\n", profile);
455 cd_dvd_plus_rw_dl = 1;
458 log_debug("profile 0x%02x dvd_plus_r_dl\n", profile);
459 cd_dvd_plus_r_dl = 1;
463 log_debug("profile 0x%02x bd\n", profile);
468 log_debug("profile 0x%02x bd_r\n", profile);
472 log_debug("profile 0x%02x bd_re\n", profile);
476 log_debug("profile 0x%02x hddvd\n", profile);
480 log_debug("profile 0x%02x hddvd_r\n", profile);
484 log_debug("profile 0x%02x hddvd_rw\n", profile);
487 log_debug("profile 0x%02x <ignored>\n", profile);
494 /* returns 0 if media was detected */
495 static int cd_profiles_old_mmc(struct udev *udev, int fd)
500 unsigned char header[32];
502 scsi_cmd_init(udev, &sc);
503 scsi_cmd_set(udev, &sc, 0, 0x51);
504 scsi_cmd_set(udev, &sc, 8, sizeof(header));
505 scsi_cmd_set(udev, &sc, 9, 0);
506 err = scsi_cmd_run(udev, &sc, fd, header, sizeof(header));
508 info_scsi_cmd_err(udev, "READ DISC INFORMATION", err);
510 log_debug("no current profile, but disc is present; assuming CD-ROM\n");
512 cd_media_track_count = 1;
513 cd_media_track_count_data = 1;
516 log_debug("no current profile, assuming no media\n");
523 if (header[2] & 16) {
525 log_debug("profile 0x0a media_cd_rw\n");
526 } else if ((header[2] & 3) < 2 && cd_cd_r) {
528 log_debug("profile 0x09 media_cd_r\n");
531 log_debug("profile 0x08 media_cd_rom\n");
536 /* returns 0 if media was detected */
537 static int cd_profiles(struct udev *udev, int fd)
540 unsigned char features[65530];
541 unsigned int cur_profile = 0;
549 /* First query the current profile */
550 scsi_cmd_init(udev, &sc);
551 scsi_cmd_set(udev, &sc, 0, 0x46);
552 scsi_cmd_set(udev, &sc, 8, 8);
553 scsi_cmd_set(udev, &sc, 9, 0);
554 err = scsi_cmd_run(udev, &sc, fd, features, 8);
556 info_scsi_cmd_err(udev, "GET CONFIGURATION", err);
557 /* handle pre-MMC2 drives which do not support GET CONFIGURATION */
558 if (SK(err) == 0x5 && ASC(err) == 0x20) {
559 log_debug("drive is pre-MMC2 and does not support 46h get configuration command\n");
560 log_debug("trying to work around the problem\n");
561 ret = cd_profiles_old_mmc(udev, fd);
566 cur_profile = features[6] << 8 | features[7];
567 if (cur_profile > 0) {
568 log_debug("current profile 0x%02x\n", cur_profile);
569 feature_profile_media (udev, cur_profile);
570 ret = 0; /* we have media */
572 log_debug("no current profile, assuming no media\n");
575 len = features[0] << 24 | features[1] << 16 | features[2] << 8 | features[3];
576 log_debug("GET CONFIGURATION: size of features buffer 0x%04x\n", len);
578 if (len > sizeof(features)) {
579 log_debug("can not get features in a single query, truncating\n");
580 len = sizeof(features);
581 } else if (len <= 8) {
582 len = sizeof(features);
585 /* Now get the full feature buffer */
586 scsi_cmd_init(udev, &sc);
587 scsi_cmd_set(udev, &sc, 0, 0x46);
588 scsi_cmd_set(udev, &sc, 7, ( len >> 8 ) & 0xff);
589 scsi_cmd_set(udev, &sc, 8, len & 0xff);
590 scsi_cmd_set(udev, &sc, 9, 0);
591 err = scsi_cmd_run(udev, &sc, fd, features, len);
593 info_scsi_cmd_err(udev, "GET CONFIGURATION", err);
597 /* parse the length once more, in case the drive decided to have other features suddenly :) */
598 len = features[0] << 24 | features[1] << 16 | features[2] << 8 | features[3];
599 log_debug("GET CONFIGURATION: size of features buffer 0x%04x\n", len);
601 if (len > sizeof(features)) {
602 log_debug("can not get features in a single query, truncating\n");
603 len = sizeof(features);
606 /* device features */
607 for (i = 8; i+4 < len; i += (4 + features[i+3])) {
608 unsigned int feature;
610 feature = features[i] << 8 | features[i+1];
614 log_debug("GET CONFIGURATION: feature 'profiles', with %i entries\n", features[i+3] / 4);
615 feature_profiles(udev, &features[i]+4, features[i+3]);
618 log_debug("GET CONFIGURATION: feature 0x%04x <ignored>, with 0x%02x bytes\n", feature, features[i+3]);
626 static int cd_media_info(struct udev *udev, int fd)
629 unsigned char header[32];
630 static const char *media_status[] = {
638 scsi_cmd_init(udev, &sc);
639 scsi_cmd_set(udev, &sc, 0, 0x51);
640 scsi_cmd_set(udev, &sc, 8, sizeof(header) & 0xff);
641 scsi_cmd_set(udev, &sc, 9, 0);
642 err = scsi_cmd_run(udev, &sc, fd, header, sizeof(header));
644 info_scsi_cmd_err(udev, "READ DISC INFORMATION", err);
649 log_debug("disk type %02x\n", header[8]);
650 log_debug("hardware reported media status: %s\n", media_status[header[2] & 3]);
652 /* exclude plain CDROM, some fake cdroms return 0 for "blank" media here */
653 if (!cd_media_cd_rom)
654 cd_media_state = media_status[header[2] & 3];
656 /* fresh DVD-RW in restricted overwite mode reports itself as
657 * "appendable"; change it to "blank" to make it consistent with what
658 * gets reported after blanking, and what userspace expects */
659 if (cd_media_dvd_rw_ro && (header[2] & 3) == 1)
660 cd_media_state = media_status[0];
662 /* DVD+RW discs (and DVD-RW in restricted mode) once formatted are
663 * always "complete", DVD-RAM are "other" or "complete" if the disc is
664 * write protected; we need to check the contents if it is blank */
665 if ((cd_media_dvd_rw_ro || cd_media_dvd_plus_rw || cd_media_dvd_plus_rw_dl || cd_media_dvd_ram) && (header[2] & 3) > 1) {
666 unsigned char buffer[32 * 2048];
667 unsigned char result, len;
670 if (cd_media_dvd_ram) {
671 /* a write protected dvd-ram may report "complete" status */
673 unsigned char dvdstruct[8];
674 unsigned char format[12];
676 scsi_cmd_init(udev, &sc);
677 scsi_cmd_set(udev, &sc, 0, 0xAD);
678 scsi_cmd_set(udev, &sc, 7, 0xC0);
679 scsi_cmd_set(udev, &sc, 9, sizeof(dvdstruct));
680 scsi_cmd_set(udev, &sc, 11, 0);
681 err = scsi_cmd_run(udev, &sc, fd, dvdstruct, sizeof(dvdstruct));
683 info_scsi_cmd_err(udev, "READ DVD STRUCTURE", err);
686 if (dvdstruct[4] & 0x02) {
687 cd_media_state = media_status[2];
688 log_debug("write-protected DVD-RAM media inserted\n");
692 /* let's make sure we don't try to read unformatted media */
693 scsi_cmd_init(udev, &sc);
694 scsi_cmd_set(udev, &sc, 0, 0x23);
695 scsi_cmd_set(udev, &sc, 8, sizeof(format));
696 scsi_cmd_set(udev, &sc, 9, 0);
697 err = scsi_cmd_run(udev, &sc, fd, format, sizeof(format));
699 info_scsi_cmd_err(udev, "READ DVD FORMAT CAPACITIES", err);
704 if (len & 7 || len < 16) {
705 log_debug("invalid format capacities length\n");
709 switch(format[8] & 3) {
711 log_debug("unformatted DVD-RAM media inserted\n");
712 /* This means that last format was interrupted
713 * or failed, blank dvd-ram discs are factory
714 * formatted. Take no action here as it takes
715 * quite a while to reformat a dvd-ram and it's
716 * not automatically started */
720 log_debug("formatted DVD-RAM media inserted\n");
724 cd_media = 0; //return no media
725 log_debug("format capacities returned no media\n");
730 /* Take a closer look at formatted media (unformatted DVD+RW
731 * has "blank" status", DVD-RAM was examined earlier) and check
732 * for ISO and UDF PVDs or a fs superblock presence and do it
733 * in one ioctl (we need just sectors 0 and 16) */
734 scsi_cmd_init(udev, &sc);
735 scsi_cmd_set(udev, &sc, 0, 0x28);
736 scsi_cmd_set(udev, &sc, 5, 0);
737 scsi_cmd_set(udev, &sc, 8, 32);
738 scsi_cmd_set(udev, &sc, 9, 0);
739 err = scsi_cmd_run(udev, &sc, fd, buffer, sizeof(buffer));
742 info_scsi_cmd_err(udev, "READ FIRST 32 BLOCKS", err);
746 /* if any non-zero data is found in sector 16 (iso and udf) or
747 * eventually 0 (fat32 boot sector, ext2 superblock, etc), disc
748 * is assumed non-blank */
751 for (block = 32768; block >= 0 && !result; block -= 32768) {
753 while (offset < (block + 2048) && !result) {
754 result = buffer [offset];
760 cd_media_state = media_status[0];
761 log_debug("no data in blocks 0 or 16, assuming blank\n");
763 log_debug("data in blocks 0 or 16, assuming complete\n");
768 /* "other" is e. g. DVD-RAM, can't append sessions there; DVDs in
769 * restricted overwrite mode can never append, only in sequential mode */
770 if ((header[2] & 3) < 2 && !cd_media_dvd_rw_ro)
771 cd_media_session_next = header[10] << 8 | header[5];
772 cd_media_session_count = header[9] << 8 | header[4];
773 cd_media_track_count = header[11] << 8 | header[6];
778 static int cd_media_toc(struct udev *udev, int fd)
781 unsigned char header[12];
782 unsigned char toc[65536];
783 unsigned int len, i, num_tracks;
787 scsi_cmd_init(udev, &sc);
788 scsi_cmd_set(udev, &sc, 0, 0x43);
789 scsi_cmd_set(udev, &sc, 6, 1);
790 scsi_cmd_set(udev, &sc, 8, sizeof(header) & 0xff);
791 scsi_cmd_set(udev, &sc, 9, 0);
792 err = scsi_cmd_run(udev, &sc, fd, header, sizeof(header));
794 info_scsi_cmd_err(udev, "READ TOC", err);
798 len = (header[0] << 8 | header[1]) + 2;
799 log_debug("READ TOC: len: %d, start track: %d, end track: %d\n", len, header[2], header[3]);
800 if (len > sizeof(toc))
804 /* 2: first track, 3: last track */
805 num_tracks = header[3] - header[2] + 1;
807 /* empty media has no tracks */
811 scsi_cmd_init(udev, &sc);
812 scsi_cmd_set(udev, &sc, 0, 0x43);
813 scsi_cmd_set(udev, &sc, 6, header[2]); /* First Track/Session Number */
814 scsi_cmd_set(udev, &sc, 7, (len >> 8) & 0xff);
815 scsi_cmd_set(udev, &sc, 8, len & 0xff);
816 scsi_cmd_set(udev, &sc, 9, 0);
817 err = scsi_cmd_run(udev, &sc, fd, toc, len);
819 info_scsi_cmd_err(udev, "READ TOC (tracks)", err);
823 /* Take care to not iterate beyond the last valid track as specified in
824 * the TOC, but also avoid going beyond the TOC length, just in case
825 * the last track number is invalidly large */
826 for (p = toc+4, i = 4; i < len-8 && num_tracks > 0; i += 8, p += 8, --num_tracks) {
828 unsigned int is_data_track;
830 is_data_track = (p[1] & 0x04) != 0;
832 block = p[4] << 24 | p[5] << 16 | p[6] << 8 | p[7];
833 log_debug("track=%u info=0x%x(%s) start_block=%u\n",
834 p[2], p[1] & 0x0f, is_data_track ? "data":"audio", block);
837 cd_media_track_count_data++;
839 cd_media_track_count_audio++;
842 scsi_cmd_init(udev, &sc);
843 scsi_cmd_set(udev, &sc, 0, 0x43);
844 scsi_cmd_set(udev, &sc, 2, 1); /* Session Info */
845 scsi_cmd_set(udev, &sc, 8, sizeof(header));
846 scsi_cmd_set(udev, &sc, 9, 0);
847 err = scsi_cmd_run(udev, &sc, fd, header, sizeof(header));
849 info_scsi_cmd_err(udev, "READ TOC (multi session)", err);
852 len = header[4+4] << 24 | header[4+5] << 16 | header[4+6] << 8 | header[4+7];
853 log_debug("last track %u starts at block %u\n", header[4+2], len);
854 cd_media_session_last_offset = (unsigned long long int)len * 2048;
858 int main(int argc, char *argv[])
861 static const struct option options[] = {
862 { "lock-media", no_argument, NULL, 'l' },
863 { "unlock-media", no_argument, NULL, 'u' },
864 { "eject-media", no_argument, NULL, 'e' },
865 { "debug", no_argument, NULL, 'd' },
866 { "help", no_argument, NULL, 'h' },
872 const char *node = NULL;
882 udev_set_log_fn(udev, log_fn);
887 option = getopt_long(argc, argv, "deluh", options, NULL);
903 log_set_max_level(LOG_DEBUG);
904 udev_set_log_priority(udev, LOG_DEBUG);
907 printf("Usage: cdrom_id [options] <device>\n"
908 " --lock-media lock the media (to enable eject request events)\n"
909 " --unlock-media unlock the media\n"
910 " --eject-media eject the media\n"
911 " --debug debug to stderr\n"
912 " --help print this help text\n\n");
922 log_error("no device\n");
923 fprintf(stderr, "no device\n");
928 srand((unsigned int)getpid());
929 for (cnt = 20; cnt > 0; cnt--) {
930 struct timespec duration;
932 fd = open(node, O_RDONLY|O_NONBLOCK|(is_mounted(node) ? 0 : O_EXCL));
933 if (fd >= 0 || errno != EBUSY)
936 duration.tv_nsec = (100 * 1000 * 1000) + (rand() % 100 * 1000 * 1000);
937 nanosleep(&duration, NULL);
940 log_debug("unable to open '%s'\n", node);
941 fprintf(stderr, "unable to open '%s'\n", node);
945 log_debug("probing: '%s'\n", node);
947 /* same data as original cdrom_id */
948 if (cd_capability_compat(udev, fd) < 0) {
953 /* check for media - don't bail if there's no media as we still need to
954 * to read profiles */
955 cd_media_compat(udev, fd);
957 /* check if drive talks MMC */
958 if (cd_inquiry(udev, fd) < 0)
961 /* read drive and possibly current profile */
962 if (cd_profiles(udev, fd) != 0)
965 /* at this point we are guaranteed to have media in the drive - find out more about it */
967 /* get session/track info */
968 cd_media_toc(udev, fd);
970 /* get writable media state */
971 cd_media_info(udev, fd);
974 /* lock the media, so we enable eject button events */
975 if (lock && cd_media) {
976 log_debug("PREVENT_ALLOW_MEDIUM_REMOVAL (lock)\n");
977 media_lock(udev, fd, true);
980 if (unlock && cd_media) {
981 log_debug("PREVENT_ALLOW_MEDIUM_REMOVAL (unlock)\n");
982 media_lock(udev, fd, false);
986 log_debug("PREVENT_ALLOW_MEDIUM_REMOVAL (unlock)\n");
987 media_lock(udev, fd, false);
988 log_debug("START_STOP_UNIT (eject)\n");
989 media_eject(udev, fd);
992 printf("ID_CDROM=1\n");
994 printf("ID_CDROM_CD=1\n");
996 printf("ID_CDROM_CD_R=1\n");
998 printf("ID_CDROM_CD_RW=1\n");
1000 printf("ID_CDROM_DVD=1\n");
1002 printf("ID_CDROM_DVD_R=1\n");
1004 printf("ID_CDROM_DVD_RW=1\n");
1006 printf("ID_CDROM_DVD_RAM=1\n");
1008 printf("ID_CDROM_DVD_PLUS_R=1\n");
1010 printf("ID_CDROM_DVD_PLUS_RW=1\n");
1011 if (cd_dvd_plus_r_dl)
1012 printf("ID_CDROM_DVD_PLUS_R_DL=1\n");
1013 if (cd_dvd_plus_rw_dl)
1014 printf("ID_CDROM_DVD_PLUS_RW_DL=1\n");
1016 printf("ID_CDROM_BD=1\n");
1018 printf("ID_CDROM_BD_R=1\n");
1020 printf("ID_CDROM_BD_RE=1\n");
1022 printf("ID_CDROM_HDDVD=1\n");
1024 printf("ID_CDROM_HDDVD_R=1\n");
1026 printf("ID_CDROM_HDDVD_RW=1\n");
1028 printf("ID_CDROM_MO=1\n");
1030 printf("ID_CDROM_MRW=1\n");
1032 printf("ID_CDROM_MRW_W=1\n");
1035 printf("ID_CDROM_MEDIA=1\n");
1037 printf("ID_CDROM_MEDIA_MO=1\n");
1039 printf("ID_CDROM_MEDIA_MRW=1\n");
1041 printf("ID_CDROM_MEDIA_MRW_W=1\n");
1042 if (cd_media_cd_rom)
1043 printf("ID_CDROM_MEDIA_CD=1\n");
1045 printf("ID_CDROM_MEDIA_CD_R=1\n");
1047 printf("ID_CDROM_MEDIA_CD_RW=1\n");
1048 if (cd_media_dvd_rom)
1049 printf("ID_CDROM_MEDIA_DVD=1\n");
1051 printf("ID_CDROM_MEDIA_DVD_R=1\n");
1052 if (cd_media_dvd_ram)
1053 printf("ID_CDROM_MEDIA_DVD_RAM=1\n");
1054 if (cd_media_dvd_rw)
1055 printf("ID_CDROM_MEDIA_DVD_RW=1\n");
1056 if (cd_media_dvd_plus_r)
1057 printf("ID_CDROM_MEDIA_DVD_PLUS_R=1\n");
1058 if (cd_media_dvd_plus_rw)
1059 printf("ID_CDROM_MEDIA_DVD_PLUS_RW=1\n");
1060 if (cd_media_dvd_plus_rw_dl)
1061 printf("ID_CDROM_MEDIA_DVD_PLUS_RW_DL=1\n");
1062 if (cd_media_dvd_plus_r_dl)
1063 printf("ID_CDROM_MEDIA_DVD_PLUS_R_DL=1\n");
1065 printf("ID_CDROM_MEDIA_BD=1\n");
1067 printf("ID_CDROM_MEDIA_BD_R=1\n");
1069 printf("ID_CDROM_MEDIA_BD_RE=1\n");
1071 printf("ID_CDROM_MEDIA_HDDVD=1\n");
1072 if (cd_media_hddvd_r)
1073 printf("ID_CDROM_MEDIA_HDDVD_R=1\n");
1074 if (cd_media_hddvd_rw)
1075 printf("ID_CDROM_MEDIA_HDDVD_RW=1\n");
1077 if (cd_media_state != NULL)
1078 printf("ID_CDROM_MEDIA_STATE=%s\n", cd_media_state);
1079 if (cd_media_session_next > 0)
1080 printf("ID_CDROM_MEDIA_SESSION_NEXT=%d\n", cd_media_session_next);
1081 if (cd_media_session_count > 0)
1082 printf("ID_CDROM_MEDIA_SESSION_COUNT=%d\n", cd_media_session_count);
1083 if (cd_media_session_count > 1 && cd_media_session_last_offset > 0)
1084 printf("ID_CDROM_MEDIA_SESSION_LAST_OFFSET=%llu\n", cd_media_session_last_offset);
1085 if (cd_media_track_count > 0)
1086 printf("ID_CDROM_MEDIA_TRACK_COUNT=%d\n", cd_media_track_count);
1087 if (cd_media_track_count_audio > 0)
1088 printf("ID_CDROM_MEDIA_TRACK_COUNT_AUDIO=%d\n", cd_media_track_count_audio);
1089 if (cd_media_track_count_data > 0)
1090 printf("ID_CDROM_MEDIA_TRACK_COUNT_DATA=%d\n", cd_media_track_count_data);