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"
43 static void log_fn(struct udev *udev, int priority,
44 const char *file, int line, const char *fn,
45 const char *format, va_list args)
48 fprintf(stderr, "%s: ", fn);
49 vfprintf(stderr, format, args);
51 vsyslog(priority, format, args);
56 static unsigned int cd_cd_rom;
57 static unsigned int cd_cd_r;
58 static unsigned int cd_cd_rw;
59 static unsigned int cd_dvd_rom;
60 static unsigned int cd_dvd_r;
61 static unsigned int cd_dvd_rw;
62 static unsigned int cd_dvd_ram;
63 static unsigned int cd_dvd_plus_r;
64 static unsigned int cd_dvd_plus_rw;
65 static unsigned int cd_dvd_plus_r_dl;
66 static unsigned int cd_dvd_plus_rw_dl;
67 static unsigned int cd_bd;
68 static unsigned int cd_bd_r;
69 static unsigned int cd_bd_re;
70 static unsigned int cd_hddvd;
71 static unsigned int cd_hddvd_r;
72 static unsigned int cd_hddvd_rw;
73 static unsigned int cd_mo;
74 static unsigned int cd_mrw;
75 static unsigned int cd_mrw_w;
78 static unsigned int cd_media;
79 static unsigned int cd_media_cd_rom;
80 static unsigned int cd_media_cd_r;
81 static unsigned int cd_media_cd_rw;
82 static unsigned int cd_media_dvd_rom;
83 static unsigned int cd_media_dvd_r;
84 static unsigned int cd_media_dvd_rw;
85 static unsigned int cd_media_dvd_rw_ro; /* restricted overwrite mode */
86 static unsigned int cd_media_dvd_rw_seq; /* sequential mode */
87 static unsigned int cd_media_dvd_ram;
88 static unsigned int cd_media_dvd_plus_r;
89 static unsigned int cd_media_dvd_plus_rw;
90 static unsigned int cd_media_dvd_plus_r_dl;
91 static unsigned int cd_media_dvd_plus_rw_dl;
92 static unsigned int cd_media_bd;
93 static unsigned int cd_media_bd_r;
94 static unsigned int cd_media_bd_re;
95 static unsigned int cd_media_hddvd;
96 static unsigned int cd_media_hddvd_r;
97 static unsigned int cd_media_hddvd_rw;
98 static unsigned int cd_media_mo;
99 static unsigned int cd_media_mrw;
100 static unsigned int cd_media_mrw_w;
102 static const char *cd_media_state = NULL;
103 static unsigned int cd_media_session_next;
104 static unsigned int cd_media_session_count;
105 static unsigned int cd_media_track_count;
106 static unsigned int cd_media_track_count_data;
107 static unsigned int cd_media_track_count_audio;
108 static unsigned long long int cd_media_session_last_offset;
110 #define ERRCODE(s) ((((s)[2] & 0x0F) << 16) | ((s)[12] << 8) | ((s)[13]))
111 #define SK(errcode) (((errcode) >> 16) & 0xF)
112 #define ASC(errcode) (((errcode) >> 8) & 0xFF)
113 #define ASCQ(errcode) ((errcode) & 0xFF)
115 static bool is_mounted(const char *device)
120 bool mounted = false;
122 if (stat(device, &statbuf) < 0)
125 fp = fopen("/proc/self/mountinfo", "re");
128 while (fscanf(fp, "%*s %*s %i:%i %*[^\n]", &maj, &min) == 2) {
129 if (makedev(maj, min) == statbuf.st_rdev) {
138 static void info_scsi_cmd_err(struct udev *udev, const char *cmd, int err)
141 log_debug("%s failed\n", cmd);
144 log_debug("%s failed with SK=%Xh/ASC=%02Xh/ACQ=%02Xh\n", cmd, SK(err), ASC(err), ASCQ(err));
148 struct cdrom_generic_command cgc;
150 struct request_sense s;
153 struct sg_io_hdr sg_io;
156 static void scsi_cmd_init(struct udev *udev, struct scsi_cmd *cmd)
158 memset(cmd, 0x00, sizeof(struct scsi_cmd));
160 cmd->cgc.sense = &cmd->_sense.s;
161 cmd->sg_io.interface_id = 'S';
162 cmd->sg_io.mx_sb_len = sizeof(cmd->_sense);
163 cmd->sg_io.cmdp = cmd->cgc.cmd;
164 cmd->sg_io.sbp = cmd->_sense.u;
165 cmd->sg_io.flags = SG_FLAG_LUN_INHIBIT | SG_FLAG_DIRECT_IO;
168 static void scsi_cmd_set(struct udev *udev, struct scsi_cmd *cmd, size_t i, unsigned char arg)
170 cmd->sg_io.cmd_len = i + 1;
171 cmd->cgc.cmd[i] = arg;
174 #define CHECK_CONDITION 0x01
176 static int scsi_cmd_run(struct udev *udev, struct scsi_cmd *cmd, int fd, unsigned char *buf, size_t bufsize)
181 cmd->sg_io.dxferp = buf;
182 cmd->sg_io.dxfer_len = bufsize;
183 cmd->sg_io.dxfer_direction = SG_DXFER_FROM_DEV;
185 cmd->sg_io.dxfer_direction = SG_DXFER_NONE;
187 if (ioctl(fd, SG_IO, &cmd->sg_io))
190 if ((cmd->sg_io.info & SG_INFO_OK_MASK) != SG_INFO_OK) {
193 if (cmd->sg_io.masked_status & CHECK_CONDITION) {
194 ret = ERRCODE(cmd->_sense.u);
202 static int media_lock(struct udev *udev, int fd, bool lock)
206 /* disable the kernel's lock logic */
207 err = ioctl(fd, CDROM_CLEAR_OPTIONS, CDO_LOCK);
209 log_debug("CDROM_CLEAR_OPTIONS, CDO_LOCK failed\n");
211 err = ioctl(fd, CDROM_LOCKDOOR, lock ? 1 : 0);
213 log_debug("CDROM_LOCKDOOR failed\n");
218 static int media_eject(struct udev *udev, int fd)
223 scsi_cmd_init(udev, &sc);
224 scsi_cmd_set(udev, &sc, 0, 0x1b);
225 scsi_cmd_set(udev, &sc, 4, 0x02);
226 scsi_cmd_set(udev, &sc, 5, 0);
227 err = scsi_cmd_run(udev, &sc, fd, NULL, 0);
229 info_scsi_cmd_err(udev, "START_STOP_UNIT", err);
235 static int cd_capability_compat(struct udev *udev, int fd)
239 capability = ioctl(fd, CDROM_GET_CAPABILITY, NULL);
240 if (capability < 0) {
241 log_debug("CDROM_GET_CAPABILITY failed\n");
245 if (capability & CDC_CD_R)
247 if (capability & CDC_CD_RW)
249 if (capability & CDC_DVD)
251 if (capability & CDC_DVD_R)
253 if (capability & CDC_DVD_RAM)
255 if (capability & CDC_MRW)
257 if (capability & CDC_MRW_W)
262 static int cd_media_compat(struct udev *udev, int fd)
264 if (ioctl(fd, CDROM_DRIVE_STATUS, CDSL_CURRENT) != CDS_DISC_OK) {
265 log_debug("CDROM_DRIVE_STATUS != CDS_DISC_OK\n");
272 static int cd_inquiry(struct udev *udev, int fd)
275 unsigned char inq[128];
278 scsi_cmd_init(udev, &sc);
279 scsi_cmd_set(udev, &sc, 0, 0x12);
280 scsi_cmd_set(udev, &sc, 4, 36);
281 scsi_cmd_set(udev, &sc, 5, 0);
282 err = scsi_cmd_run(udev, &sc, fd, inq, 36);
284 info_scsi_cmd_err(udev, "INQUIRY", err);
288 if ((inq[0] & 0x1F) != 5) {
289 log_debug("not an MMC unit\n");
293 log_debug("INQUIRY: [%.8s][%.16s][%.4s]\n", inq + 8, inq + 16, inq + 32);
297 static void feature_profile_media(struct udev *udev, int cur_profile)
299 switch (cur_profile) {
303 log_debug("profile 0x%02x \n", cur_profile);
308 log_debug("profile 0x%02x media_cd_rom\n", cur_profile);
313 log_debug("profile 0x%02x media_cd_r\n", cur_profile);
318 log_debug("profile 0x%02x media_cd_rw\n", cur_profile);
323 log_debug("profile 0x%02x media_dvd_ro\n", cur_profile);
325 cd_media_dvd_rom = 1;
328 log_debug("profile 0x%02x media_dvd_r\n", cur_profile);
333 log_debug("profile 0x%02x media_dvd_ram\n", cur_profile);
335 cd_media_dvd_ram = 1;
338 log_debug("profile 0x%02x media_dvd_rw_ro\n", cur_profile);
341 cd_media_dvd_rw_ro = 1;
344 log_debug("profile 0x%02x media_dvd_rw_seq\n", cur_profile);
347 cd_media_dvd_rw_seq = 1;
350 log_debug("profile 0x%02x media_dvd_plus_r\n", cur_profile);
352 cd_media_dvd_plus_r = 1;
355 log_debug("profile 0x%02x media_dvd_plus_rw\n", cur_profile);
357 cd_media_dvd_plus_rw = 1;
360 log_debug("profile 0x%02x media_dvd_plus_rw_dl\n", cur_profile);
362 cd_media_dvd_plus_rw_dl = 1;
365 log_debug("profile 0x%02x media_dvd_plus_r_dl\n", cur_profile);
367 cd_media_dvd_plus_r_dl = 1;
370 log_debug("profile 0x%02x media_bd\n", cur_profile);
376 log_debug("profile 0x%02x media_bd_r\n", cur_profile);
381 log_debug("profile 0x%02x media_bd_re\n", cur_profile);
386 log_debug("profile 0x%02x media_hddvd\n", cur_profile);
391 log_debug("profile 0x%02x media_hddvd_r\n", cur_profile);
393 cd_media_hddvd_r = 1;
396 log_debug("profile 0x%02x media_hddvd_rw\n", cur_profile);
398 cd_media_hddvd_rw = 1;
401 log_debug("profile 0x%02x <ignored>\n", cur_profile);
406 static int feature_profiles(struct udev *udev, const unsigned char *profiles, size_t size)
410 for (i = 0; i+4 <= size; i += 4) {
413 profile = profiles[i] << 8 | profiles[i+1];
418 log_debug("profile 0x%02x mo\n", profile);
422 log_debug("profile 0x%02x cd_rom\n", profile);
426 log_debug("profile 0x%02x cd_r\n", profile);
430 log_debug("profile 0x%02x cd_rw\n", profile);
434 log_debug("profile 0x%02x dvd_rom\n", profile);
438 log_debug("profile 0x%02x dvd_ram\n", profile);
443 log_debug("profile 0x%02x dvd_rw\n", profile);
447 log_debug("profile 0x%02x dvd_plus_r\n", profile);
451 log_debug("profile 0x%02x dvd_plus_rw\n", profile);
455 log_debug("profile 0x%02x dvd_plus_rw_dl\n", profile);
456 cd_dvd_plus_rw_dl = 1;
459 log_debug("profile 0x%02x dvd_plus_r_dl\n", profile);
460 cd_dvd_plus_r_dl = 1;
464 log_debug("profile 0x%02x bd\n", profile);
469 log_debug("profile 0x%02x bd_r\n", profile);
473 log_debug("profile 0x%02x bd_re\n", profile);
477 log_debug("profile 0x%02x hddvd\n", profile);
481 log_debug("profile 0x%02x hddvd_r\n", profile);
485 log_debug("profile 0x%02x hddvd_rw\n", profile);
488 log_debug("profile 0x%02x <ignored>\n", profile);
495 /* returns 0 if media was detected */
496 static int cd_profiles_old_mmc(struct udev *udev, int fd)
501 unsigned char header[32];
503 scsi_cmd_init(udev, &sc);
504 scsi_cmd_set(udev, &sc, 0, 0x51);
505 scsi_cmd_set(udev, &sc, 8, sizeof(header));
506 scsi_cmd_set(udev, &sc, 9, 0);
507 err = scsi_cmd_run(udev, &sc, fd, header, sizeof(header));
509 info_scsi_cmd_err(udev, "READ DISC INFORMATION", err);
511 log_debug("no current profile, but disc is present; assuming CD-ROM\n");
513 cd_media_track_count = 1;
514 cd_media_track_count_data = 1;
517 log_debug("no current profile, assuming no media\n");
524 if (header[2] & 16) {
526 log_debug("profile 0x0a media_cd_rw\n");
527 } else if ((header[2] & 3) < 2 && cd_cd_r) {
529 log_debug("profile 0x09 media_cd_r\n");
532 log_debug("profile 0x08 media_cd_rom\n");
537 /* returns 0 if media was detected */
538 static int cd_profiles(struct udev *udev, int fd)
541 unsigned char features[65530];
542 unsigned int cur_profile = 0;
550 /* First query the current profile */
551 scsi_cmd_init(udev, &sc);
552 scsi_cmd_set(udev, &sc, 0, 0x46);
553 scsi_cmd_set(udev, &sc, 8, 8);
554 scsi_cmd_set(udev, &sc, 9, 0);
555 err = scsi_cmd_run(udev, &sc, fd, features, 8);
557 info_scsi_cmd_err(udev, "GET CONFIGURATION", err);
558 /* handle pre-MMC2 drives which do not support GET CONFIGURATION */
559 if (SK(err) == 0x5 && ASC(err) == 0x20) {
560 log_debug("drive is pre-MMC2 and does not support 46h get configuration command\n");
561 log_debug("trying to work around the problem\n");
562 ret = cd_profiles_old_mmc(udev, fd);
567 cur_profile = features[6] << 8 | features[7];
568 if (cur_profile > 0) {
569 log_debug("current profile 0x%02x\n", cur_profile);
570 feature_profile_media (udev, cur_profile);
571 ret = 0; /* we have media */
573 log_debug("no current profile, assuming no media\n");
576 len = features[0] << 24 | features[1] << 16 | features[2] << 8 | features[3];
577 log_debug("GET CONFIGURATION: size of features buffer 0x%04x\n", len);
579 if (len > sizeof(features)) {
580 log_debug("can not get features in a single query, truncating\n");
581 len = sizeof(features);
582 } else if (len <= 8) {
583 len = sizeof(features);
586 /* Now get the full feature buffer */
587 scsi_cmd_init(udev, &sc);
588 scsi_cmd_set(udev, &sc, 0, 0x46);
589 scsi_cmd_set(udev, &sc, 7, ( len >> 8 ) & 0xff);
590 scsi_cmd_set(udev, &sc, 8, len & 0xff);
591 scsi_cmd_set(udev, &sc, 9, 0);
592 err = scsi_cmd_run(udev, &sc, fd, features, len);
594 info_scsi_cmd_err(udev, "GET CONFIGURATION", err);
598 /* parse the length once more, in case the drive decided to have other features suddenly :) */
599 len = features[0] << 24 | features[1] << 16 | features[2] << 8 | features[3];
600 log_debug("GET CONFIGURATION: size of features buffer 0x%04x\n", len);
602 if (len > sizeof(features)) {
603 log_debug("can not get features in a single query, truncating\n");
604 len = sizeof(features);
607 /* device features */
608 for (i = 8; i+4 < len; i += (4 + features[i+3])) {
609 unsigned int feature;
611 feature = features[i] << 8 | features[i+1];
615 log_debug("GET CONFIGURATION: feature 'profiles', with %i entries\n", features[i+3] / 4);
616 feature_profiles(udev, &features[i]+4, features[i+3]);
619 log_debug("GET CONFIGURATION: feature 0x%04x <ignored>, with 0x%02x bytes\n", feature, features[i+3]);
627 static int cd_media_info(struct udev *udev, int fd)
630 unsigned char header[32];
631 static const char *media_status[] = {
639 scsi_cmd_init(udev, &sc);
640 scsi_cmd_set(udev, &sc, 0, 0x51);
641 scsi_cmd_set(udev, &sc, 8, sizeof(header) & 0xff);
642 scsi_cmd_set(udev, &sc, 9, 0);
643 err = scsi_cmd_run(udev, &sc, fd, header, sizeof(header));
645 info_scsi_cmd_err(udev, "READ DISC INFORMATION", err);
650 log_debug("disk type %02x\n", header[8]);
651 log_debug("hardware reported media status: %s\n", media_status[header[2] & 3]);
653 /* exclude plain CDROM, some fake cdroms return 0 for "blank" media here */
654 if (!cd_media_cd_rom)
655 cd_media_state = media_status[header[2] & 3];
657 /* fresh DVD-RW in restricted overwite mode reports itself as
658 * "appendable"; change it to "blank" to make it consistent with what
659 * gets reported after blanking, and what userspace expects */
660 if (cd_media_dvd_rw_ro && (header[2] & 3) == 1)
661 cd_media_state = media_status[0];
663 /* DVD+RW discs (and DVD-RW in restricted mode) once formatted are
664 * always "complete", DVD-RAM are "other" or "complete" if the disc is
665 * write protected; we need to check the contents if it is blank */
666 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) {
667 unsigned char buffer[32 * 2048];
668 unsigned char result, len;
671 if (cd_media_dvd_ram) {
672 /* a write protected dvd-ram may report "complete" status */
674 unsigned char dvdstruct[8];
675 unsigned char format[12];
677 scsi_cmd_init(udev, &sc);
678 scsi_cmd_set(udev, &sc, 0, 0xAD);
679 scsi_cmd_set(udev, &sc, 7, 0xC0);
680 scsi_cmd_set(udev, &sc, 9, sizeof(dvdstruct));
681 scsi_cmd_set(udev, &sc, 11, 0);
682 err = scsi_cmd_run(udev, &sc, fd, dvdstruct, sizeof(dvdstruct));
684 info_scsi_cmd_err(udev, "READ DVD STRUCTURE", err);
687 if (dvdstruct[4] & 0x02) {
688 cd_media_state = media_status[2];
689 log_debug("write-protected DVD-RAM media inserted\n");
693 /* let's make sure we don't try to read unformatted media */
694 scsi_cmd_init(udev, &sc);
695 scsi_cmd_set(udev, &sc, 0, 0x23);
696 scsi_cmd_set(udev, &sc, 8, sizeof(format));
697 scsi_cmd_set(udev, &sc, 9, 0);
698 err = scsi_cmd_run(udev, &sc, fd, format, sizeof(format));
700 info_scsi_cmd_err(udev, "READ DVD FORMAT CAPACITIES", err);
705 if (len & 7 || len < 16) {
706 log_debug("invalid format capacities length\n");
710 switch(format[8] & 3) {
712 log_debug("unformatted DVD-RAM media inserted\n");
713 /* This means that last format was interrupted
714 * or failed, blank dvd-ram discs are factory
715 * formatted. Take no action here as it takes
716 * quite a while to reformat a dvd-ram and it's
717 * not automatically started */
721 log_debug("formatted DVD-RAM media inserted\n");
725 cd_media = 0; //return no media
726 log_debug("format capacities returned no media\n");
731 /* Take a closer look at formatted media (unformatted DVD+RW
732 * has "blank" status", DVD-RAM was examined earlier) and check
733 * for ISO and UDF PVDs or a fs superblock presence and do it
734 * in one ioctl (we need just sectors 0 and 16) */
735 scsi_cmd_init(udev, &sc);
736 scsi_cmd_set(udev, &sc, 0, 0x28);
737 scsi_cmd_set(udev, &sc, 5, 0);
738 scsi_cmd_set(udev, &sc, 8, 32);
739 scsi_cmd_set(udev, &sc, 9, 0);
740 err = scsi_cmd_run(udev, &sc, fd, buffer, sizeof(buffer));
743 info_scsi_cmd_err(udev, "READ FIRST 32 BLOCKS", err);
747 /* if any non-zero data is found in sector 16 (iso and udf) or
748 * eventually 0 (fat32 boot sector, ext2 superblock, etc), disc
749 * is assumed non-blank */
752 for (block = 32768; block >= 0 && !result; block -= 32768) {
754 while (offset < (block + 2048) && !result) {
755 result = buffer [offset];
761 cd_media_state = media_status[0];
762 log_debug("no data in blocks 0 or 16, assuming blank\n");
764 log_debug("data in blocks 0 or 16, assuming complete\n");
769 /* "other" is e. g. DVD-RAM, can't append sessions there; DVDs in
770 * restricted overwrite mode can never append, only in sequential mode */
771 if ((header[2] & 3) < 2 && !cd_media_dvd_rw_ro)
772 cd_media_session_next = header[10] << 8 | header[5];
773 cd_media_session_count = header[9] << 8 | header[4];
774 cd_media_track_count = header[11] << 8 | header[6];
779 static int cd_media_toc(struct udev *udev, int fd)
782 unsigned char header[12];
783 unsigned char toc[65536];
784 unsigned int len, i, num_tracks;
788 scsi_cmd_init(udev, &sc);
789 scsi_cmd_set(udev, &sc, 0, 0x43);
790 scsi_cmd_set(udev, &sc, 6, 1);
791 scsi_cmd_set(udev, &sc, 8, sizeof(header) & 0xff);
792 scsi_cmd_set(udev, &sc, 9, 0);
793 err = scsi_cmd_run(udev, &sc, fd, header, sizeof(header));
795 info_scsi_cmd_err(udev, "READ TOC", err);
799 len = (header[0] << 8 | header[1]) + 2;
800 log_debug("READ TOC: len: %d, start track: %d, end track: %d\n", len, header[2], header[3]);
801 if (len > sizeof(toc))
805 /* 2: first track, 3: last track */
806 num_tracks = header[3] - header[2] + 1;
808 /* empty media has no tracks */
812 scsi_cmd_init(udev, &sc);
813 scsi_cmd_set(udev, &sc, 0, 0x43);
814 scsi_cmd_set(udev, &sc, 6, header[2]); /* First Track/Session Number */
815 scsi_cmd_set(udev, &sc, 7, (len >> 8) & 0xff);
816 scsi_cmd_set(udev, &sc, 8, len & 0xff);
817 scsi_cmd_set(udev, &sc, 9, 0);
818 err = scsi_cmd_run(udev, &sc, fd, toc, len);
820 info_scsi_cmd_err(udev, "READ TOC (tracks)", err);
824 /* Take care to not iterate beyond the last valid track as specified in
825 * the TOC, but also avoid going beyond the TOC length, just in case
826 * the last track number is invalidly large */
827 for (p = toc+4, i = 4; i < len-8 && num_tracks > 0; i += 8, p += 8, --num_tracks) {
829 unsigned int is_data_track;
831 is_data_track = (p[1] & 0x04) != 0;
833 block = p[4] << 24 | p[5] << 16 | p[6] << 8 | p[7];
834 log_debug("track=%u info=0x%x(%s) start_block=%u\n",
835 p[2], p[1] & 0x0f, is_data_track ? "data":"audio", block);
838 cd_media_track_count_data++;
840 cd_media_track_count_audio++;
843 scsi_cmd_init(udev, &sc);
844 scsi_cmd_set(udev, &sc, 0, 0x43);
845 scsi_cmd_set(udev, &sc, 2, 1); /* Session Info */
846 scsi_cmd_set(udev, &sc, 8, sizeof(header));
847 scsi_cmd_set(udev, &sc, 9, 0);
848 err = scsi_cmd_run(udev, &sc, fd, header, sizeof(header));
850 info_scsi_cmd_err(udev, "READ TOC (multi session)", err);
853 len = header[4+4] << 24 | header[4+5] << 16 | header[4+6] << 8 | header[4+7];
854 log_debug("last track %u starts at block %u\n", header[4+2], len);
855 cd_media_session_last_offset = (unsigned long long int)len * 2048;
859 int main(int argc, char *argv[])
862 static const struct option options[] = {
863 { "lock-media", no_argument, NULL, 'l' },
864 { "unlock-media", no_argument, NULL, 'u' },
865 { "eject-media", no_argument, NULL, 'e' },
866 { "debug", no_argument, NULL, 'd' },
867 { "help", no_argument, NULL, 'h' },
873 const char *node = NULL;
883 udev_set_log_fn(udev, log_fn);
888 option = getopt_long(argc, argv, "deluh", options, NULL);
904 log_set_max_level(LOG_DEBUG);
905 udev_set_log_priority(udev, LOG_DEBUG);
908 printf("Usage: cdrom_id [options] <device>\n"
909 " --lock-media lock the media (to enable eject request events)\n"
910 " --unlock-media unlock the media\n"
911 " --eject-media eject the media\n"
912 " --debug debug to stderr\n"
913 " --help print this help text\n\n");
923 log_error("no device\n");
924 fprintf(stderr, "no device\n");
929 srand((unsigned int)getpid());
930 for (cnt = 20; cnt > 0; cnt--) {
931 struct timespec duration;
933 fd = open(node, O_RDONLY|O_NONBLOCK|(is_mounted(node) ? 0 : O_EXCL));
934 if (fd >= 0 || errno != EBUSY)
937 duration.tv_nsec = (100 * 1000 * 1000) + (rand() % 100 * 1000 * 1000);
938 nanosleep(&duration, NULL);
941 log_debug("unable to open '%s'\n", node);
942 fprintf(stderr, "unable to open '%s'\n", node);
946 log_debug("probing: '%s'\n", node);
948 /* same data as original cdrom_id */
949 if (cd_capability_compat(udev, fd) < 0) {
954 /* check for media - don't bail if there's no media as we still need to
955 * to read profiles */
956 cd_media_compat(udev, fd);
958 /* check if drive talks MMC */
959 if (cd_inquiry(udev, fd) < 0)
962 /* read drive and possibly current profile */
963 if (cd_profiles(udev, fd) != 0)
966 /* at this point we are guaranteed to have media in the drive - find out more about it */
968 /* get session/track info */
969 cd_media_toc(udev, fd);
971 /* get writable media state */
972 cd_media_info(udev, fd);
975 /* lock the media, so we enable eject button events */
976 if (lock && cd_media) {
977 log_debug("PREVENT_ALLOW_MEDIUM_REMOVAL (lock)\n");
978 media_lock(udev, fd, true);
981 if (unlock && cd_media) {
982 log_debug("PREVENT_ALLOW_MEDIUM_REMOVAL (unlock)\n");
983 media_lock(udev, fd, false);
987 log_debug("PREVENT_ALLOW_MEDIUM_REMOVAL (unlock)\n");
988 media_lock(udev, fd, false);
989 log_debug("START_STOP_UNIT (eject)\n");
990 media_eject(udev, fd);
993 printf("ID_CDROM=1\n");
995 printf("ID_CDROM_CD=1\n");
997 printf("ID_CDROM_CD_R=1\n");
999 printf("ID_CDROM_CD_RW=1\n");
1001 printf("ID_CDROM_DVD=1\n");
1003 printf("ID_CDROM_DVD_R=1\n");
1005 printf("ID_CDROM_DVD_RW=1\n");
1007 printf("ID_CDROM_DVD_RAM=1\n");
1009 printf("ID_CDROM_DVD_PLUS_R=1\n");
1011 printf("ID_CDROM_DVD_PLUS_RW=1\n");
1012 if (cd_dvd_plus_r_dl)
1013 printf("ID_CDROM_DVD_PLUS_R_DL=1\n");
1014 if (cd_dvd_plus_rw_dl)
1015 printf("ID_CDROM_DVD_PLUS_RW_DL=1\n");
1017 printf("ID_CDROM_BD=1\n");
1019 printf("ID_CDROM_BD_R=1\n");
1021 printf("ID_CDROM_BD_RE=1\n");
1023 printf("ID_CDROM_HDDVD=1\n");
1025 printf("ID_CDROM_HDDVD_R=1\n");
1027 printf("ID_CDROM_HDDVD_RW=1\n");
1029 printf("ID_CDROM_MO=1\n");
1031 printf("ID_CDROM_MRW=1\n");
1033 printf("ID_CDROM_MRW_W=1\n");
1036 printf("ID_CDROM_MEDIA=1\n");
1038 printf("ID_CDROM_MEDIA_MO=1\n");
1040 printf("ID_CDROM_MEDIA_MRW=1\n");
1042 printf("ID_CDROM_MEDIA_MRW_W=1\n");
1043 if (cd_media_cd_rom)
1044 printf("ID_CDROM_MEDIA_CD=1\n");
1046 printf("ID_CDROM_MEDIA_CD_R=1\n");
1048 printf("ID_CDROM_MEDIA_CD_RW=1\n");
1049 if (cd_media_dvd_rom)
1050 printf("ID_CDROM_MEDIA_DVD=1\n");
1052 printf("ID_CDROM_MEDIA_DVD_R=1\n");
1053 if (cd_media_dvd_ram)
1054 printf("ID_CDROM_MEDIA_DVD_RAM=1\n");
1055 if (cd_media_dvd_rw)
1056 printf("ID_CDROM_MEDIA_DVD_RW=1\n");
1057 if (cd_media_dvd_plus_r)
1058 printf("ID_CDROM_MEDIA_DVD_PLUS_R=1\n");
1059 if (cd_media_dvd_plus_rw)
1060 printf("ID_CDROM_MEDIA_DVD_PLUS_RW=1\n");
1061 if (cd_media_dvd_plus_rw_dl)
1062 printf("ID_CDROM_MEDIA_DVD_PLUS_RW_DL=1\n");
1063 if (cd_media_dvd_plus_r_dl)
1064 printf("ID_CDROM_MEDIA_DVD_PLUS_R_DL=1\n");
1066 printf("ID_CDROM_MEDIA_BD=1\n");
1068 printf("ID_CDROM_MEDIA_BD_R=1\n");
1070 printf("ID_CDROM_MEDIA_BD_RE=1\n");
1072 printf("ID_CDROM_MEDIA_HDDVD=1\n");
1073 if (cd_media_hddvd_r)
1074 printf("ID_CDROM_MEDIA_HDDVD_R=1\n");
1075 if (cd_media_hddvd_rw)
1076 printf("ID_CDROM_MEDIA_HDDVD_RW=1\n");
1078 if (cd_media_state != NULL)
1079 printf("ID_CDROM_MEDIA_STATE=%s\n", cd_media_state);
1080 if (cd_media_session_next > 0)
1081 printf("ID_CDROM_MEDIA_SESSION_NEXT=%d\n", cd_media_session_next);
1082 if (cd_media_session_count > 0)
1083 printf("ID_CDROM_MEDIA_SESSION_COUNT=%d\n", cd_media_session_count);
1084 if (cd_media_session_count > 1 && cd_media_session_last_offset > 0)
1085 printf("ID_CDROM_MEDIA_SESSION_LAST_OFFSET=%llu\n", cd_media_session_last_offset);
1086 if (cd_media_track_count > 0)
1087 printf("ID_CDROM_MEDIA_TRACK_COUNT=%d\n", cd_media_track_count);
1088 if (cd_media_track_count_audio > 0)
1089 printf("ID_CDROM_MEDIA_TRACK_COUNT_AUDIO=%d\n", cd_media_track_count_audio);
1090 if (cd_media_track_count_data > 0)
1091 printf("ID_CDROM_MEDIA_TRACK_COUNT_DATA=%d\n", cd_media_track_count_data);