/*
* cdrom_id - optical drive and media information prober
*
- * Copyright (C) 2008 Kay Sievers <kay.sievers@vrfy.org>
+ * Copyright (C) 2008-2010 Kay Sievers <kay.sievers@vrfy.org>
*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation version 2 of the License.
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
*
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
*
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _GNU_SOURCE
#include <fcntl.h>
#include <errno.h>
#include <getopt.h>
+#include <time.h>
#include <scsi/sg.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/ioctl.h>
#include <linux/cdrom.h>
-#include "../../udev.h"
-#ifndef ARRAY_SIZE
-#define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
-#endif
+#include "libudev.h"
+#include "libudev-private.h"
static int debug;
-#ifdef USE_LOG
-void log_message(int priority, const char *format, ...)
+static void log_fn(struct udev *udev, int priority,
+ const char *file, int line, const char *fn,
+ const char *format, va_list args)
{
- va_list args;
- static int udev_log = -1;
-
- if (udev_log == -1) {
- const char *value;
-
- value = getenv("UDEV_LOG");
- if (value)
- udev_log = log_priority(value);
- else
- udev_log = LOG_ERR;
-
- if (debug && udev_log < LOG_INFO)
- udev_log = LOG_INFO;
- }
-
- if (priority > udev_log)
- return;
-
- va_start(args, format);
if (debug) {
- fprintf(stderr, "[%d] ", (int) getpid());
+ fprintf(stderr, "%s: ", fn);
vfprintf(stderr, format, args);
- } else
+ } else {
vsyslog(priority, format, args);
- va_end(args);
+ }
}
-#endif
/* device info */
-static unsigned int cd_cd_rom;
-static unsigned int cd_cd_r;
-static unsigned int cd_cd_rw;
-static unsigned int cd_dvd_rom;
-static unsigned int cd_dvd_r;
-static unsigned int cd_dvd_rw;
-static unsigned int cd_dvd_ram;
-static unsigned int cd_dvd_plus_r;
-static unsigned int cd_dvd_plus_rw;
-static unsigned int cd_dvd_plus_r_dl;
-static unsigned int cd_dvd_plus_rw_dl;
-static unsigned int cd_bd;
-static unsigned int cd_bd_r;
-static unsigned int cd_bd_re;
-static unsigned int cd_hddvd;
-static unsigned int cd_hddvd_r;
-static unsigned int cd_hddvd_rw;
-static unsigned int cd_mo;
-static unsigned int cd_mrw;
-static unsigned int cd_mrw_w;
+static unsigned int cd_cd_rom = 0;
+static unsigned int cd_cd_r = 0;
+static unsigned int cd_cd_rw = 0;
+static unsigned int cd_dvd_rom = 0;
+static unsigned int cd_dvd_r = 0;
+static unsigned int cd_dvd_rw = 0;
+static unsigned int cd_dvd_ram = 0;
+static unsigned int cd_dvd_plus_r = 0;
+static unsigned int cd_dvd_plus_rw = 0;
+static unsigned int cd_dvd_plus_r_dl = 0;
+static unsigned int cd_dvd_plus_rw_dl = 0;
+static unsigned int cd_bd = 0;
+static unsigned int cd_bd_r = 0;
+static unsigned int cd_bd_re = 0;
+static unsigned int cd_hddvd = 0;
+static unsigned int cd_hddvd_r = 0;
+static unsigned int cd_hddvd_rw = 0;
+static unsigned int cd_mo = 0;
+static unsigned int cd_mrw = 0;
+static unsigned int cd_mrw_w = 0;
/* media info */
-static unsigned int cd_media_cd_rom;
-static unsigned int cd_media_cd_r;
-static unsigned int cd_media_cd_rw;
-static unsigned int cd_media_dvd_rom;
-static unsigned int cd_media_dvd_r;
-static unsigned int cd_media_dvd_rw;
-static unsigned int cd_media_dvd_ram;
-static unsigned int cd_media_dvd_plus_r;
-static unsigned int cd_media_dvd_plus_rw;
-static unsigned int cd_media_dvd_plus_r_dl;
-static unsigned int cd_media_dvd_plus_rw_dl;
-static unsigned int cd_media_bd;
-static unsigned int cd_media_bd_r;
-static unsigned int cd_media_bd_re;
-static unsigned int cd_media_hddvd;
-static unsigned int cd_media_hddvd_r;
-static unsigned int cd_media_hddvd_rw;
-static unsigned int cd_media_mo;
-static unsigned int cd_media_mrw;
-static unsigned int cd_media_mrw_w;
-
-static const char *cd_media_state;
-static unsigned int cd_media_has_audio;
-static unsigned int cd_media_session_next;
-static unsigned int cd_media_session_count;
-static unsigned int cd_media_track_count;
-static unsigned long long int cd_media_session_last_offset;
+static unsigned int cd_media = 0;
+static unsigned int cd_media_cd_rom = 0;
+static unsigned int cd_media_cd_r = 0;
+static unsigned int cd_media_cd_rw = 0;
+static unsigned int cd_media_dvd_rom = 0;
+static unsigned int cd_media_dvd_r = 0;
+static unsigned int cd_media_dvd_rw = 0;
+static unsigned int cd_media_dvd_rw_ro = 0; /* restricted overwrite mode */
+static unsigned int cd_media_dvd_rw_seq = 0; /* sequential mode */
+static unsigned int cd_media_dvd_ram = 0;
+static unsigned int cd_media_dvd_plus_r = 0;
+static unsigned int cd_media_dvd_plus_rw = 0;
+static unsigned int cd_media_dvd_plus_r_dl = 0;
+static unsigned int cd_media_dvd_plus_rw_dl = 0;
+static unsigned int cd_media_bd = 0;
+static unsigned int cd_media_bd_r = 0;
+static unsigned int cd_media_bd_re = 0;
+static unsigned int cd_media_hddvd = 0;
+static unsigned int cd_media_hddvd_r = 0;
+static unsigned int cd_media_hddvd_rw = 0;
+static unsigned int cd_media_mo = 0;
+static unsigned int cd_media_mrw = 0;
+static unsigned int cd_media_mrw_w = 0;
+
+static const char *cd_media_state = NULL;
+static unsigned int cd_media_session_next = 0;
+static unsigned int cd_media_session_count = 0;
+static unsigned int cd_media_track_count = 0;
+static unsigned int cd_media_track_count_data = 0;
+static unsigned int cd_media_track_count_audio = 0;
+static unsigned long long int cd_media_session_last_offset = 0;
#define ERRCODE(s) ((((s)[2] & 0x0F) << 16) | ((s)[12] << 8) | ((s)[13]))
#define SK(errcode) (((errcode) >> 16) & 0xF)
#define ASC(errcode) (((errcode) >> 8) & 0xFF)
#define ASCQ(errcode) ((errcode) & 0xFF)
-static void info_scsi_cmd_err(const char *cmd, int err)
+static int is_mounted(const char *device)
+{
+ struct stat statbuf;
+ FILE *fp;
+ int maj, min;
+ int mounted = 0;
+
+ if (stat(device, &statbuf) < 0)
+ return -ENODEV;
+
+ fp = fopen("/proc/self/mountinfo", "r");
+ if (fp == NULL)
+ return -ENOSYS;
+ while (fscanf(fp, "%*s %*s %i:%i %*[^\n]", &maj, &min) == 2) {
+ if (makedev(maj, min) == statbuf.st_rdev) {
+ mounted = 1;
+ break;
+ }
+ }
+ fclose(fp);
+ return mounted;
+}
+
+static void info_scsi_cmd_err(struct udev *udev, char *cmd, int err)
{
if (err == -1) {
- info("%s failed\n", cmd);
+ info(udev, "%s failed\n", cmd);
return;
}
- info("%s failed with SK=%Xh/ASC=%02Xh/ACQ=%02Xh\n", cmd, SK(err), ASC(err), ASCQ(err));
+ info(udev, "%s failed with SK=%Xh/ASC=%02Xh/ACQ=%02Xh\n", cmd, SK(err), ASC(err), ASCQ(err));
}
struct scsi_cmd {
struct sg_io_hdr sg_io;
};
-static void scsi_cmd_set(struct scsi_cmd *cmd, size_t i, int arg)
+static void scsi_cmd_init(struct udev *udev, struct scsi_cmd *cmd, unsigned char *buf, size_t bufsize)
+{
+ memset(cmd, 0x00, sizeof(struct scsi_cmd));
+ memset(buf, 0x00, bufsize);
+ cmd->cgc.quiet = 1;
+ cmd->cgc.sense = &cmd->_sense.s;
+ memset(&cmd->sg_io, 0, sizeof(cmd->sg_io));
+ cmd->sg_io.interface_id = 'S';
+ cmd->sg_io.mx_sb_len = sizeof(cmd->_sense);
+ cmd->sg_io.cmdp = cmd->cgc.cmd;
+ cmd->sg_io.sbp = cmd->_sense.u;
+ cmd->sg_io.flags = SG_FLAG_LUN_INHIBIT | SG_FLAG_DIRECT_IO;
+}
+
+static void scsi_cmd_set(struct udev *udev, struct scsi_cmd *cmd, size_t i, unsigned char arg)
{
- if (i == 0) {
- memset(cmd, 0x00, sizeof(struct scsi_cmd));
- cmd->cgc.quiet = 1;
- cmd->cgc.sense = &cmd->_sense.s;
- memset(&cmd->sg_io, 0, sizeof(cmd->sg_io));
- cmd->sg_io.interface_id = 'S';
- cmd->sg_io.mx_sb_len = sizeof(cmd->_sense);
- cmd->sg_io.cmdp = cmd->cgc.cmd;
- cmd->sg_io.sbp = cmd->_sense.u;
- cmd->sg_io.flags = SG_FLAG_LUN_INHIBIT | SG_FLAG_DIRECT_IO;
- }
cmd->sg_io.cmd_len = i + 1;
cmd->cgc.cmd[i] = arg;
}
#define CHECK_CONDITION 0x01
-static int scsi_cmd_run(struct scsi_cmd *cmd, int fd, unsigned char *buf, size_t bufsize)
+static int scsi_cmd_run(struct udev *udev, struct scsi_cmd *cmd, int fd, unsigned char *buf, size_t bufsize)
{
int ret = 0;
return ret;
}
-static int cd_capability_compat(int fd)
+static int cd_capability_compat(struct udev *udev, int fd)
{
- int capabilty;
+ int capability;
- capabilty = ioctl(fd, CDROM_GET_CAPABILITY, NULL);
- if (capabilty < 0) {
- info("CDROM_GET_CAPABILITY failed\n");
+ capability = ioctl(fd, CDROM_GET_CAPABILITY, NULL);
+ if (capability < 0) {
+ info(udev, "CDROM_GET_CAPABILITY failed\n");
return -1;
}
- if (capabilty & CDC_CD_R)
+ if (capability & CDC_CD_R)
cd_cd_r = 1;
- if (capabilty & CDC_CD_RW)
+ if (capability & CDC_CD_RW)
cd_cd_rw = 1;
- if (capabilty & CDC_DVD)
+ if (capability & CDC_DVD)
cd_dvd_rom = 1;
- if (capabilty & CDC_DVD_R)
+ if (capability & CDC_DVD_R)
cd_dvd_r = 1;
- if (capabilty & CDC_DVD_RAM)
+ if (capability & CDC_DVD_RAM)
cd_dvd_ram = 1;
- if (capabilty & CDC_MRW)
+ if (capability & CDC_MRW)
cd_mrw = 1;
- if (capabilty & CDC_MRW_W)
+ if (capability & CDC_MRW_W)
cd_mrw_w = 1;
return 0;
}
-static int cd_inquiry(int fd) {
+static int cd_media_compat(struct udev *udev, int fd)
+{
+ if (ioctl(fd, CDROM_DRIVE_STATUS, CDSL_CURRENT) != CDS_DISC_OK) {
+ info(udev, "CDROM_DRIVE_STATUS != CDS_DISC_OK\n");
+ return -1;
+ }
+ cd_media = 1;
+ return 0;
+}
+
+static int cd_inquiry(struct udev *udev, int fd) {
struct scsi_cmd sc;
unsigned char inq[128];
int err;
- scsi_cmd_set(&sc, 0, 0x12);
- scsi_cmd_set(&sc, 4, 36);
- scsi_cmd_set(&sc, 5, 0);
- err = scsi_cmd_run(&sc, fd, inq, 36);
- if ((err < 0)) {
- info_scsi_cmd_err("INQUIRY", err);
+ scsi_cmd_init(udev, &sc, inq, sizeof(inq));
+ scsi_cmd_set(udev, &sc, 0, 0x12);
+ scsi_cmd_set(udev, &sc, 4, 36);
+ scsi_cmd_set(udev, &sc, 5, 0);
+ err = scsi_cmd_run(udev, &sc, fd, inq, 36);
+ if ((err != 0)) {
+ info_scsi_cmd_err(udev, "INQUIRY", err);
return -1;
}
if ((inq[0] & 0x1F) != 5) {
- info("not an MMC unit\n");
+ info(udev, "not an MMC unit\n");
return -1;
}
- info("INQUIRY: [%.8s][%.16s][%.4s]\n", inq + 8, inq + 16, inq + 32);
+ info(udev, "INQUIRY: [%.8s][%.16s][%.4s]\n", inq + 8, inq + 16, inq + 32);
return 0;
}
-static int cd_profiles(int fd)
+static int feature_profiles(struct udev *udev, const unsigned char *profiles, size_t size)
{
- struct scsi_cmd sc;
- unsigned char header[8];
- unsigned char profiles[512];
- unsigned int cur_profile;
- unsigned int len;
unsigned int i;
- int err;
-
- scsi_cmd_set(&sc, 0, 0x46);
- scsi_cmd_set(&sc, 1, 0);
- scsi_cmd_set(&sc, 8, sizeof(header));
- scsi_cmd_set(&sc, 9, 0);
- err = scsi_cmd_run(&sc, fd, header, sizeof(header));
- if ((err < 0)) {
- info_scsi_cmd_err("GET CONFIGURATION", err);
- return -1;
- }
- len = 4 + (header[0] << 24 | header[1] << 16 | header[2] << 8 | header[3]);
- info("GET CONFIGURATION: number of profiles %i\n", len);
- if (len > sizeof(profiles)) {
- info("invalid number of profiles\n");
- return -1;
- }
-
- scsi_cmd_set(&sc, 0, 0x46);
- scsi_cmd_set(&sc, 1, 1);
- scsi_cmd_set(&sc, 6, len >> 16);
- scsi_cmd_set(&sc, 7, len >> 8);
- scsi_cmd_set(&sc, 8, len);
- scsi_cmd_set(&sc, 9, 0);
- err = scsi_cmd_run(&sc, fd, profiles, len);
- if ((err < 0)) {
- info_scsi_cmd_err("GET CONFIGURATION", err);
- return -1;
- }
-
- /* device profiles */
- for (i = 12; i < profiles[11]; i += 4) {
- unsigned int profile = (profiles[i] << 8 | profiles[i + 1]);
- if (profile == 0)
- continue;
- info("profile 0x%02x\n", profile);
+ for (i = 0; i+4 <= size; i += 4) {
+ int profile;
+ profile = profiles[i] << 8 | profiles[i+1];
switch (profile) {
case 0x03:
case 0x04:
case 0x05:
+ info(udev, "profile 0x%02x mo\n", profile);
cd_mo = 1;
- break;
+ break;
+ case 0x08:
+ info(udev, "profile 0x%02x cd_rom\n", profile);
+ cd_cd_rom = 1;
+ break;
+ case 0x09:
+ info(udev, "profile 0x%02x cd_r\n", profile);
+ cd_cd_r = 1;
+ break;
+ case 0x0A:
+ info(udev, "profile 0x%02x cd_rw\n", profile);
+ cd_cd_rw = 1;
+ break;
case 0x10:
+ info(udev, "profile 0x%02x dvd_rom\n", profile);
cd_dvd_rom = 1;
break;
case 0x12:
+ info(udev, "profile 0x%02x dvd_ram\n", profile);
cd_dvd_ram = 1;
break;
case 0x13:
+ info(udev, "profile 0x%02x media_dvd_rw\n", profile);
+ cd_media_dvd_rw = 1;
+ cd_media_dvd_rw_ro = 1;
+ break;
case 0x14:
+ info(udev, "profile 0x%02x dvd_rw\n", profile);
cd_dvd_rw = 1;
+ cd_media_dvd_rw_seq = 1;
break;
case 0x1B:
+ info(udev, "profile 0x%02x dvd_plus_r\n", profile);
cd_dvd_plus_r = 1;
break;
case 0x1A:
+ info(udev, "profile 0x%02x dvd_plus_rw\n", profile);
cd_dvd_plus_rw = 1;
break;
case 0x2A:
+ info(udev, "profile 0x%02x dvd_plus_rw_dl\n", profile);
cd_dvd_plus_rw_dl = 1;
break;
case 0x2B:
+ info(udev, "profile 0x%02x dvd_plus_r_dl\n", profile);
cd_dvd_plus_r_dl = 1;
break;
case 0x40:
cd_bd = 1;
+ info(udev, "profile 0x%02x bd\n", profile);
break;
case 0x41:
case 0x42:
cd_bd_r = 1;
+ info(udev, "profile 0x%02x bd_r\n", profile);
break;
case 0x43:
cd_bd_re = 1;
+ info(udev, "profile 0x%02x bd_re\n", profile);
break;
case 0x50:
cd_hddvd = 1;
+ info(udev, "profile 0x%02x hddvd\n", profile);
break;
case 0x51:
cd_hddvd_r = 1;
+ info(udev, "profile 0x%02x hddvd_r\n", profile);
break;
case 0x52:
cd_hddvd_rw = 1;
+ info(udev, "profile 0x%02x hddvd_rw\n", profile);
break;
default:
+ info(udev, "profile 0x%02x <ignored>\n", profile);
break;
}
}
+ return 0;
+}
+
+static int cd_profiles_old_mmc(struct udev *udev, int fd)
+{
+ struct scsi_cmd sc;
+ int err;
+
+ unsigned char header[32];
- /* current media profile */
- cur_profile = header[6] << 8 | header[7];
- info("current profile 0x%02x\n", cur_profile);
- if (cur_profile == 0) {
- info("no current profile, assuming no media\n");
+ scsi_cmd_init(udev, &sc, header, sizeof(header));
+ scsi_cmd_set(udev, &sc, 0, 0x51);
+ scsi_cmd_set(udev, &sc, 8, sizeof(header));
+ scsi_cmd_set(udev, &sc, 9, 0);
+ err = scsi_cmd_run(udev, &sc, fd, header, sizeof(header));
+ if ((err != 0)) {
+ info_scsi_cmd_err(udev, "READ DISC INFORMATION", err);
+ info(udev, "no current profile, assuming no media\n");
+ return -1;
+ };
+
+ cd_media = 1;
+
+ if (header[2] & 16) {
+ cd_media_cd_rw = 1;
+ info(udev, "profile 0x0a media_cd_rw\n");
+ }
+ else if ((header[2] & 3) < 2 && cd_cd_r) {
+ cd_media_cd_r = 1;
+ info(udev, "profile 0x09 media_cd_r\n");
+ }
+ else {
+ cd_media_cd_rom = 1;
+ info(udev, "profile 0x08 media_cd_rom\n");
+ }
+ return 0;
+}
+
+static int cd_profiles(struct udev *udev, int fd)
+{
+ struct scsi_cmd sc;
+ unsigned char features[65530];
+ unsigned int cur_profile = 0;
+ unsigned int len;
+ unsigned int i;
+ int err;
+
+ scsi_cmd_init(udev, &sc, features, sizeof(features));
+ scsi_cmd_set(udev, &sc, 0, 0x46);
+ scsi_cmd_set(udev, &sc, 7, (sizeof(features) >> 8) & 0xff);
+ scsi_cmd_set(udev, &sc, 8, sizeof(features) & 0xff);
+ scsi_cmd_set(udev, &sc, 9, 0);
+ err = scsi_cmd_run(udev, &sc, fd, features, sizeof(features));
+ if ((err != 0)) {
+ info_scsi_cmd_err(udev, "GET CONFIGURATION", err);
+ /* handle pre-MMC2 drives which do not support GET CONFIGURATION */
+ if (SK(err) == 0x5 && ASC(err) == 0x20) {
+ info(udev, "drive is pre-MMC2 and does not support 46h get configuration command\n");
+ info(udev, "trying to work around the problem\n");
+ return cd_profiles_old_mmc(udev, fd);
+ }
+ return -1;
+ }
+
+ len = features[0] << 24 | features[1] << 16 | features[2] << 8 | features[3];
+ info(udev, "GET CONFIGURATION: size of features buffer 0x%04x\n", len);
+
+ if (len > sizeof(features)) {
+ info(udev, "can not get features in a single query, truncating\n");
+ len = sizeof(features);
+ }
+
+ /* device features */
+ for (i = 8; i+4 < len; i += (4 + features[i+3])) {
+ unsigned int feature;
+
+ feature = features[i] << 8 | features[i+1];
+
+ switch (feature) {
+ case 0x00:
+ info(udev, "GET CONFIGURATION: feature 'profiles', with %i entries\n", features[i+3] / 4);
+ feature_profiles(udev, &features[i]+4, features[i+3]);
+ break;
+ default:
+ info(udev, "GET CONFIGURATION: feature 0x%04x <ignored>, with 0x%02x bytes\n", feature, features[i+3]);
+ break;
+ }
+ }
+
+ cur_profile = features[6] << 8 | features[7];
+ if (cur_profile > 0) {
+ info(udev, "current profile 0x%02x\n", cur_profile);
+ } else {
+ info(udev, "no current profile, assuming no media\n");
return -1;
}
case 0x03:
case 0x04:
case 0x05:
+ info(udev, "profile 0x%02x \n", cur_profile);
+ cd_media = 1;
cd_media_mo = 1;
break;
case 0x08:
+ info(udev, "profile 0x%02x media_cd_rom\n", cur_profile);
+ cd_media = 1;
cd_media_cd_rom = 1;
break;
case 0x09:
+ info(udev, "profile 0x%02x media_cd_r\n", cur_profile);
+ cd_media = 1;
cd_media_cd_r = 1;
break;
case 0x0a:
+ info(udev, "profile 0x%02x media_cd_rw\n", cur_profile);
+ cd_media = 1;
cd_media_cd_rw = 1;
break;
case 0x10:
+ info(udev, "profile 0x%02x media_dvd_ro\n", cur_profile);
+ cd_media = 1;
cd_media_dvd_rom = 1;
break;
case 0x11:
+ info(udev, "profile 0x%02x media_dvd_r\n", cur_profile);
+ cd_media = 1;
cd_media_dvd_r = 1;
break;
case 0x12:
+ info(udev, "profile 0x%02x media_dvd_ram\n", cur_profile);
+ cd_media = 1;
cd_media_dvd_ram = 1;
break;
case 0x13:
case 0x14:
+ info(udev, "profile 0x%02x media_dvd_rw\n", cur_profile);
+ cd_media = 1;
cd_media_dvd_rw = 1;
break;
case 0x1B:
+ info(udev, "profile 0x%02x media_dvd_plus_r\n", cur_profile);
+ cd_media = 1;
cd_media_dvd_plus_r = 1;
break;
case 0x1A:
+ info(udev, "profile 0x%02x media_dvd_plus_rw\n", cur_profile);
+ cd_media = 1;
cd_media_dvd_plus_rw = 1;
break;
case 0x2A:
+ info(udev, "profile 0x%02x media_dvd_plus_rw_dl\n", cur_profile);
+ cd_media = 1;
cd_media_dvd_plus_rw_dl = 1;
break;
case 0x2B:
+ info(udev, "profile 0x%02x media_dvd_plus_r_dl\n", cur_profile);
+ cd_media = 1;
cd_media_dvd_plus_r_dl = 1;
break;
case 0x40:
+ info(udev, "profile 0x%02x media_bd\n", cur_profile);
+ cd_media = 1;
cd_media_bd = 1;
break;
case 0x41:
case 0x42:
+ info(udev, "profile 0x%02x media_bd_r\n", cur_profile);
+ cd_media = 1;
cd_media_bd_r = 1;
break;
case 0x43:
+ info(udev, "profile 0x%02x media_bd_re\n", cur_profile);
+ cd_media = 1;
cd_media_bd_re = 1;
break;
case 0x50:
+ info(udev, "profile 0x%02x media_hddvd\n", cur_profile);
+ cd_media = 1;
cd_media_hddvd = 1;
break;
case 0x51:
+ info(udev, "profile 0x%02x media_hddvd_r\n", cur_profile);
+ cd_media = 1;
cd_media_hddvd_r = 1;
break;
case 0x52:
+ info(udev, "profile 0x%02x media_hddvd_rw\n", cur_profile);
+ cd_media = 1;
cd_media_hddvd_rw = 1;
break;
default:
+ info(udev, "profile 0x%02x <ignored>\n", cur_profile);
break;
}
return 0;
}
-static int cd_media_info(int fd)
+static int cd_media_info(struct udev *udev, int fd)
{
struct scsi_cmd sc;
unsigned char header[32];
};
int err;
- scsi_cmd_set(&sc, 0, 0x51);
- scsi_cmd_set(&sc, 8, sizeof(header));
- scsi_cmd_set(&sc, 9, 0);
- err = scsi_cmd_run(&sc, fd, header, sizeof(header));
- if ((err < 0)) {
- info_scsi_cmd_err("READ DISC INFORMATION", err);
+ scsi_cmd_init(udev, &sc, header, sizeof(header));
+ scsi_cmd_set(udev, &sc, 0, 0x51);
+ scsi_cmd_set(udev, &sc, 8, sizeof(header) & 0xff);
+ scsi_cmd_set(udev, &sc, 9, 0);
+ err = scsi_cmd_run(udev, &sc, fd, header, sizeof(header));
+ if ((err != 0)) {
+ info_scsi_cmd_err(udev, "READ DISC INFORMATION", err);
return -1;
};
- info("disk type %02x\n", header[8]);
+ cd_media = 1;
+ info(udev, "disk type %02x\n", header[8]);
- if ((header[2] & 3) < 4)
+ /* exclude plain CDROM, some fake cdroms return 0 for "blank" media here */
+ if (!cd_media_cd_rom)
cd_media_state = media_status[header[2] & 3];
- if ((header[2] & 3) != 2)
+
+ /* fresh DVD-RW in restricted overwite mode reports itself as
+ * "appendable"; change it to "blank" to make it consistent with what
+ * gets reported after blanking, and what userspace expects */
+ if (cd_media_dvd_rw_ro && (header[2] & 3) == 1)
+ cd_media_state = media_status[0];
+
+ /* DVD+RW discs (and DVD-RW in restricted mode) once formatted are
+ * always "complete", DVD-RAM are "other" or "complete" if the disc is
+ * write protected; we need to check the contents if it is blank */
+ 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) {
+ unsigned char buffer[17 * 2048];
+ unsigned char result, len;
+ int block, offset;
+
+ if (cd_media_dvd_ram) {
+ /* a write protected dvd-ram may report "complete" status */
+
+ unsigned char dvdstruct[8];
+ unsigned char format[12];
+
+ scsi_cmd_init(udev, &sc, dvdstruct, sizeof(dvdstruct));
+ scsi_cmd_set(udev, &sc, 0, 0xAD);
+ scsi_cmd_set(udev, &sc, 7, 0xC0);
+ scsi_cmd_set(udev, &sc, 9, sizeof(dvdstruct));
+ scsi_cmd_set(udev, &sc, 11, 0);
+ err = scsi_cmd_run(udev, &sc, fd, dvdstruct, sizeof(dvdstruct));
+ if ((err != 0)) {
+ info_scsi_cmd_err(udev, "READ DVD STRUCTURE", err);
+ return -1;
+ }
+ if (dvdstruct[4] & 0x02) {
+ cd_media_state = media_status[2];
+ info(udev, "write-protected DVD-RAM media inserted\n");
+ goto determined;
+ }
+
+ /* let's make sure we don't try to read unformatted media */
+ scsi_cmd_init(udev, &sc, format, sizeof(format));
+ scsi_cmd_set(udev, &sc, 0, 0x23);
+ scsi_cmd_set(udev, &sc, 8, sizeof(format));
+ scsi_cmd_set(udev, &sc, 9, 0);
+ err = scsi_cmd_run(udev, &sc, fd, format, sizeof(format));
+ if ((err != 0)) {
+ info_scsi_cmd_err(udev, "READ DVD FORMAT CAPACITIES", err);
+ return -1;
+ }
+
+ len = format[3];
+ if (len & 7 || len < 16) {
+ info(udev, "invalid format capacities length\n");
+ return -1;
+ }
+
+ switch(format[8] & 3) {
+ case 1:
+ info(udev, "unformatted DVD-RAM media inserted\n");
+ /* This means that last format was interrupted
+ * or failed, blank dvd-ram discs are factory
+ * formatted. Take no action here as it takes
+ * quite a while to reformat a dvd-ram and it's
+ * not automatically started */
+ goto determined;
+
+ case 2:
+ info(udev, "formatted DVD-RAM media inserted\n");
+ break;
+
+ case 3:
+ cd_media = 0; //return no media
+ info(udev, "format capacities returned no media\n");
+ return -1;
+ }
+ }
+
+ /* Take a closer look at formatted media (unformatted DVD+RW
+ * has "blank" status", DVD-RAM was examined earlier) and check
+ * for ISO and UDF PVDs or a fs superblock presence and do it
+ * in one ioctl (we need just sectors 0 and 16) */
+ scsi_cmd_init(udev, &sc, buffer, sizeof(buffer));
+ scsi_cmd_set(udev, &sc, 0, 0x28);
+ scsi_cmd_set(udev, &sc, 5, 0);
+ scsi_cmd_set(udev, &sc, 8, 17);
+ scsi_cmd_set(udev, &sc, 9, 0);
+ err = scsi_cmd_run(udev, &sc, fd, buffer, sizeof(buffer));
+ if ((err != 0)) {
+ info_scsi_cmd_err(udev, "READ FIRST 32 BLOCKS", err);
+ return -1;
+ }
+
+ /* if any non-zero data is found in sector 16 (iso and udf) or
+ * eventually 0 (fat32 boot sector, ext2 superblock, etc), disc
+ * is assumed non-blank */
+ result = 0;
+
+ for (block = 32768; block >= 0 && !result; block -= 32768) {
+ offset = block;
+ while (offset < (block + 2048) && !result) {
+ result = buffer [offset];
+ offset++;
+ }
+ }
+
+ if (!result) {
+ cd_media_state = media_status[0];
+ info(udev, "no data in blocks 0 or 16, assuming blank\n");
+ } else {
+ info(udev, "data in blocks 0 or 16, assuming complete\n");
+ }
+ }
+
+determined:
+ /* "other" is e. g. DVD-RAM, can't append sessions there either */
+ if ((header[2] & 3) < 2)
cd_media_session_next = header[10] << 8 | header[5];
cd_media_session_count = header[9] << 8 | header[4];
cd_media_track_count = header[11] << 8 | header[6];
return 0;
}
-static int cd_media_toc(int fd)
+static int cd_media_toc(struct udev *udev, int fd)
{
struct scsi_cmd sc;
unsigned char header[12];
unsigned char *p;
int err;
- scsi_cmd_set(&sc, 0, 0x43);
- scsi_cmd_set(&sc, 6, 1);
- scsi_cmd_set(&sc, 8, sizeof(header));
- scsi_cmd_set(&sc, 9, 0);
- err = scsi_cmd_run(&sc, fd, header, sizeof(header));
- if ((err < 0)) {
- info_scsi_cmd_err("READ TOC", err);
+ scsi_cmd_init(udev, &sc, header, sizeof(header));
+ scsi_cmd_set(udev, &sc, 0, 0x43);
+ scsi_cmd_set(udev, &sc, 6, 1);
+ scsi_cmd_set(udev, &sc, 8, sizeof(header) & 0xff);
+ scsi_cmd_set(udev, &sc, 9, 0);
+ err = scsi_cmd_run(udev, &sc, fd, header, sizeof(header));
+ if ((err != 0)) {
+ info_scsi_cmd_err(udev, "READ TOC", err);
return -1;
}
len = (header[0] << 8 | header[1]) + 2;
- info("READ TOC: len: %d\n", len);
+ info(udev, "READ TOC: len: %d\n", len);
if (len > sizeof(toc))
return -1;
+ if (len < 2)
+ return -1;
- /* check if we have a data track */
- info("ctl %02x (0x04 is data/audio)\n", header[5]);
- cd_media_has_audio = (header[5] & 0x04) == 0;
-
- scsi_cmd_set(&sc, 0, 0x43);
- scsi_cmd_set(&sc, 6, header[2]); /* First Track/Session Number */
- scsi_cmd_set(&sc, 7, len >> 8);
- scsi_cmd_set(&sc, 8, len);
- scsi_cmd_set(&sc, 9, 0);
- err = scsi_cmd_run(&sc, fd, toc, len);
- if ((err < 0)) {
- info_scsi_cmd_err("READ TOC (tracks)", err);
+ /* empty media has no tracks */
+ if (len < 8)
+ return 0;
+
+ scsi_cmd_init(udev, &sc, toc, sizeof(toc));
+ scsi_cmd_set(udev, &sc, 0, 0x43);
+ scsi_cmd_set(udev, &sc, 6, header[2]); /* First Track/Session Number */
+ scsi_cmd_set(udev, &sc, 7, (len >> 8) & 0xff);
+ scsi_cmd_set(udev, &sc, 8, len & 0xff);
+ scsi_cmd_set(udev, &sc, 9, 0);
+ err = scsi_cmd_run(udev, &sc, fd, toc, len);
+ if ((err != 0)) {
+ info_scsi_cmd_err(udev, "READ TOC (tracks)", err);
return -1;
}
for (p = toc+4, i = 4; i < len-8; i += 8, p += 8) {
unsigned int block;
+ unsigned int is_data_track;
+
+ is_data_track = (p[1] & 0x04) != 0;
block = p[4] << 24 | p[5] << 16 | p[6] << 8 | p[7];
- info("track %u starts at block %u\n", p[2], block);
+ info(udev, "track=%u info=0x%x(%s) start_block=%u\n",
+ p[2], p[1] & 0x0f, is_data_track ? "data":"audio", block);
+
+ if (is_data_track)
+ cd_media_track_count_data++;
+ else
+ cd_media_track_count_audio++;
}
- scsi_cmd_set(&sc, 0, 0x43);
- scsi_cmd_set(&sc, 2, 1); /* Session Info */
- scsi_cmd_set(&sc, 8, 12);
- scsi_cmd_set(&sc, 9, 0);
- err = scsi_cmd_run(&sc, fd, header, sizeof(header));
- if ((err < 0)) {
- info_scsi_cmd_err("READ TOC (multi session)", err);
+ scsi_cmd_init(udev, &sc, header, sizeof(header));
+ scsi_cmd_set(udev, &sc, 0, 0x43);
+ scsi_cmd_set(udev, &sc, 2, 1); /* Session Info */
+ scsi_cmd_set(udev, &sc, 8, sizeof(header));
+ scsi_cmd_set(udev, &sc, 9, 0);
+ err = scsi_cmd_run(udev, &sc, fd, header, sizeof(header));
+ if ((err != 0)) {
+ info_scsi_cmd_err(udev, "READ TOC (multi session)", err);
return -1;
}
len = header[4+4] << 24 | header[4+5] << 16 | header[4+6] << 8 | header[4+7];
- info("last track %u starts at block %u\n", header[4+2], len);
+ info(udev, "last track %u starts at block %u\n", header[4+2], len);
cd_media_session_last_offset = (unsigned long long int)len * 2048;
return 0;
}
int main(int argc, char *argv[])
{
+ struct udev *udev;
static const struct option options[] = {
- { "export", 0, NULL, 'x' },
- { "debug", 0, NULL, 'd' },
- { "help", 0, NULL, 'h' },
+ { "export", no_argument, NULL, 'x' },
+ { "debug", no_argument, NULL, 'd' },
+ { "help", no_argument, NULL, 'h' },
{}
};
const char *node = NULL;
int export = 0;
int fd = -1;
+ int cnt;
int rc = 0;
- logging_init("cdrom_id");
+ udev = udev_new();
+ if (udev == NULL)
+ goto exit;
+
+ udev_log_init("cdrom_id");
+ udev_set_log_fn(udev, log_fn);
while (1) {
int option;
switch (option) {
case 'd':
debug = 1;
+ if (udev_get_log_priority(udev) < LOG_INFO)
+ udev_set_log_priority(udev, LOG_INFO);
break;
case 'x':
export = 1;
node = argv[optind];
if (!node) {
- err("no device\n");
+ err(udev, "no device\n");
fprintf(stderr, "no device\n");
rc = 1;
goto exit;
}
- fd = open(node, O_RDONLY | O_NONBLOCK);
+ srand((unsigned int)getpid());
+ for (cnt = 20; cnt > 0; cnt--) {
+ struct timespec duration;
+
+ fd = open(node, O_RDONLY|O_NONBLOCK|(is_mounted(node) ? 0 : O_EXCL));
+ if (fd >= 0 || errno != EBUSY)
+ break;
+ duration.tv_sec = 0;
+ duration.tv_nsec = (100 * 1000 * 1000) + (rand() % 100 * 1000 * 1000);
+ nanosleep(&duration, NULL);
+ }
if (fd < 0) {
- info("unable to open '%s'\n", node);
+ info(udev, "unable to open '%s'\n", node);
+ fprintf(stderr, "unable to open '%s'\n", node);
rc = 1;
goto exit;
}
- info("probing: '%s'\n", node);
+ info(udev, "probing: '%s'\n", node);
/* same data as original cdrom_id */
- if (cd_capability_compat(fd) < 0) {
+ if (cd_capability_compat(udev, fd) < 0) {
rc = 1;
goto exit;
}
- /* check drive */
- if (cd_inquiry(fd) < 0) {
- rc = 2;
- goto exit;
- }
+ /* check for media - don't bail if there's no media as we still need to
+ * to read profiles */
+ cd_media_compat(udev, fd);
- /* read drive and possibly current profile */
- if (cd_profiles(fd) < 0)
+ /* check if drive talks MMC */
+ if (cd_inquiry(udev, fd) < 0)
goto print;
- /* get session/track info */
- if (cd_media_toc(fd) < 0)
+ /* read drive and possibly current profile */
+ if (cd_profiles(udev, fd) < 0)
goto print;
/* get writable media state */
- if (cd_media_info(fd) < 0)
+ if (cd_media_info(udev, fd) < 0)
+ goto print;
+
+ /* get session/track info */
+ if (cd_media_toc(udev, fd) < 0)
goto print;
print:
if (cd_mrw_w)
printf("ID_CDROM_MRW_W=1\n");
+ if (cd_media)
+ printf("ID_CDROM_MEDIA=1\n");
if (cd_media_mo)
printf("ID_CDROM_MEDIA_MO=1\n");
if (cd_media_mrw)
if (cd_media_state != NULL)
printf("ID_CDROM_MEDIA_STATE=%s\n", cd_media_state);
- if (cd_media_has_audio)
- printf("ID_CDROM_MEDIA_HAS_AUDIO=1\n");
if (cd_media_session_next > 0)
printf("ID_CDROM_MEDIA_SESSION_NEXT=%d\n", cd_media_session_next);
if (cd_media_session_count > 0)
printf("ID_CDROM_MEDIA_SESSION_COUNT=%d\n", cd_media_session_count);
+ if (cd_media_session_count > 1 && cd_media_session_last_offset > 0)
+ printf("ID_CDROM_MEDIA_SESSION_LAST_OFFSET=%llu\n", cd_media_session_last_offset);
if (cd_media_track_count > 0)
printf("ID_CDROM_MEDIA_TRACK_COUNT=%d\n", cd_media_track_count);
- if (cd_media_session_last_offset)
- printf("ID_CDROM_MEDIA_SESSION_LAST_OFFSET=%llu\n", cd_media_session_last_offset);
+ if (cd_media_track_count_audio > 0)
+ printf("ID_CDROM_MEDIA_TRACK_COUNT_AUDIO=%d\n", cd_media_track_count_audio);
+ if (cd_media_track_count_data > 0)
+ printf("ID_CDROM_MEDIA_TRACK_COUNT_DATA=%d\n", cd_media_track_count_data);
exit:
if (fd >= 0)
close(fd);
- logging_close();
+ udev_unref(udev);
+ udev_log_close();
return rc;
}
~ianmdlvl / elogind.git / blobdiff