#include "libudev.h"
#include "libudev-private.h"
-static int debug;
+static bool debug;
static void log_fn(struct udev *udev, int priority,
const char *file, int line, const char *fn,
struct sg_io_hdr sg_io;
};
-static void scsi_cmd_init(struct udev *udev, struct scsi_cmd *cmd, unsigned char *buf, size_t bufsize)
+static void scsi_cmd_init(struct udev *udev, struct scsi_cmd *cmd)
{
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;
{
int ret = 0;
- cmd->sg_io.dxferp = buf;
- cmd->sg_io.dxfer_len = bufsize;
- cmd->sg_io.dxfer_direction = SG_DXFER_FROM_DEV;
+ if (bufsize > 0) {
+ cmd->sg_io.dxferp = buf;
+ cmd->sg_io.dxfer_len = bufsize;
+ cmd->sg_io.dxfer_direction = SG_DXFER_FROM_DEV;
+ } else {
+ cmd->sg_io.dxfer_direction = SG_DXFER_NONE;
+ }
if (ioctl(fd, SG_IO, &cmd->sg_io))
return -1;
return ret;
}
+static int media_lock(struct udev *udev, int fd, bool lock)
+{
+ int err;
+
+ /* disable the kernel's lock logic */
+ err = ioctl(fd, CDROM_CLEAR_OPTIONS, CDO_LOCK);
+ if (err < 0)
+ info(udev, "CDROM_CLEAR_OPTIONS, CDO_LOCK failed\n");
+
+ err = ioctl(fd, CDROM_LOCKDOOR, lock ? 1 : 0);
+ if (err < 0)
+ info(udev, "CDROM_LOCKDOOR failed\n");
+
+ return err;
+}
+
+static int media_eject(struct udev *udev, int fd)
+{
+ struct scsi_cmd sc;
+ int err;
+
+ scsi_cmd_init(udev, &sc);
+ scsi_cmd_set(udev, &sc, 0, 0x1b);
+ scsi_cmd_set(udev, &sc, 4, 0x02);
+ scsi_cmd_set(udev, &sc, 5, 0);
+ err = scsi_cmd_run(udev, &sc, fd, NULL, 0);
+ if ((err != 0)) {
+ info_scsi_cmd_err(udev, "START_STOP_UNIT", err);
+ return -1;
+ }
+ return 0;
+}
+
static int cd_capability_compat(struct udev *udev, int fd)
{
int capability;
return 0;
}
-static int cd_inquiry(struct udev *udev, int fd) {
+static int cd_inquiry(struct udev *udev, int fd)
+{
struct scsi_cmd sc;
unsigned char inq[128];
int err;
- scsi_cmd_init(udev, &sc, inq, sizeof(inq));
+ scsi_cmd_init(udev, &sc);
scsi_cmd_set(udev, &sc, 0, 0x12);
scsi_cmd_set(udev, &sc, 4, 36);
scsi_cmd_set(udev, &sc, 5, 0);
return 0;
}
+static void feature_profile_media(struct udev *udev, int cur_profile)
+{
+ switch (cur_profile) {
+ 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:
+ info(udev, "profile 0x%02x media_dvd_rw_ro\n", cur_profile);
+ cd_media = 1;
+ cd_media_dvd_rw = 1;
+ cd_media_dvd_rw_ro = 1;
+ break;
+ case 0x14:
+ info(udev, "profile 0x%02x media_dvd_rw_seq\n", cur_profile);
+ cd_media = 1;
+ cd_media_dvd_rw = 1;
+ cd_media_dvd_rw_seq = 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;
+ }
+}
+
static int feature_profiles(struct udev *udev, const unsigned char *profiles, size_t size)
{
unsigned int i;
return 0;
}
+/* returns 0 if media was detected */
static int cd_profiles_old_mmc(struct udev *udev, int fd)
{
struct scsi_cmd sc;
unsigned char header[32];
- scsi_cmd_init(udev, &sc, header, sizeof(header));
+ scsi_cmd_init(udev, &sc);
scsi_cmd_set(udev, &sc, 0, 0x51);
scsi_cmd_set(udev, &sc, 8, sizeof(header));
scsi_cmd_set(udev, &sc, 9, 0);
return 0;
}
+/* returns 0 if media was detected */
static int cd_profiles(struct udev *udev, int fd)
{
struct scsi_cmd sc;
unsigned int len;
unsigned int i;
int err;
+ int ret;
+
+ ret = -1;
/* First query the current profile */
- scsi_cmd_init(udev, &sc, features, sizeof(features));
+ scsi_cmd_init(udev, &sc);
scsi_cmd_set(udev, &sc, 0, 0x46);
scsi_cmd_set(udev, &sc, 8, 8);
scsi_cmd_set(udev, &sc, 9, 0);
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);
+ ret = cd_profiles_old_mmc(udev, fd);
}
- return -1;
+ goto out;
}
cur_profile = features[6] << 8 | features[7];
if (cur_profile > 0) {
info(udev, "current profile 0x%02x\n", cur_profile);
+ feature_profile_media (udev, cur_profile);
+ ret = 0; /* we have media */
} else {
info(udev, "no current profile, assuming no media\n");
- return -1;
}
- switch (cur_profile) {
- 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:
- info(udev, "profile 0x%02x media_dvd_rw_ro\n", cur_profile);
- cd_media = 1;
- cd_media_dvd_rw = 1;
- cd_media_dvd_rw_ro = 1;
- break;
- case 0x14:
- info(udev, "profile 0x%02x media_dvd_rw_seq\n", cur_profile);
- cd_media = 1;
- cd_media_dvd_rw = 1;
- cd_media_dvd_rw_seq = 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;
- }
-
-
len = features[0] << 24 | features[1] << 16 | features[2] << 8 | features[3];
info(udev, "GET CONFIGURATION: size of features buffer 0x%04x\n", len);
}
/* Now get the full feature buffer */
- scsi_cmd_init(udev, &sc, features, len);
+ scsi_cmd_init(udev, &sc);
scsi_cmd_set(udev, &sc, 0, 0x46);
scsi_cmd_set(udev, &sc, 7, ( len >> 8 ) & 0xff);
scsi_cmd_set(udev, &sc, 8, len & 0xff);
break;
}
}
-
- return 0;
+out:
+ return ret;
}
static int cd_media_info(struct udev *udev, int fd)
};
int err;
- scsi_cmd_init(udev, &sc, header, sizeof(header));
+ scsi_cmd_init(udev, &sc);
scsi_cmd_set(udev, &sc, 0, 0x51);
scsi_cmd_set(udev, &sc, 8, sizeof(header) & 0xff);
scsi_cmd_set(udev, &sc, 9, 0);
unsigned char dvdstruct[8];
unsigned char format[12];
- scsi_cmd_init(udev, &sc, dvdstruct, sizeof(dvdstruct));
+ scsi_cmd_init(udev, &sc);
scsi_cmd_set(udev, &sc, 0, 0xAD);
scsi_cmd_set(udev, &sc, 7, 0xC0);
scsi_cmd_set(udev, &sc, 9, sizeof(dvdstruct));
}
/* let's make sure we don't try to read unformatted media */
- scsi_cmd_init(udev, &sc, format, sizeof(format));
+ scsi_cmd_init(udev, &sc);
scsi_cmd_set(udev, &sc, 0, 0x23);
scsi_cmd_set(udev, &sc, 8, sizeof(format));
scsi_cmd_set(udev, &sc, 9, 0);
* 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_init(udev, &sc);
scsi_cmd_set(udev, &sc, 0, 0x28);
scsi_cmd_set(udev, &sc, 5, 0);
scsi_cmd_set(udev, &sc, 8, 32);
unsigned char *p;
int err;
- scsi_cmd_init(udev, &sc, header, sizeof(header));
+ scsi_cmd_init(udev, &sc);
scsi_cmd_set(udev, &sc, 0, 0x43);
scsi_cmd_set(udev, &sc, 6, 1);
scsi_cmd_set(udev, &sc, 8, sizeof(header) & 0xff);
if (len < 8)
return 0;
- scsi_cmd_init(udev, &sc, toc, sizeof(toc));
+ scsi_cmd_init(udev, &sc);
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);
cd_media_track_count_audio++;
}
- scsi_cmd_init(udev, &sc, header, sizeof(header));
+ scsi_cmd_init(udev, &sc);
scsi_cmd_set(udev, &sc, 0, 0x43);
scsi_cmd_set(udev, &sc, 2, 1); /* Session Info */
scsi_cmd_set(udev, &sc, 8, sizeof(header));
{
struct udev *udev;
static const struct option options[] = {
- { "export", no_argument, NULL, 'x' },
+ { "lock-media", no_argument, NULL, 'l' },
+ { "unlock-media", no_argument, NULL, 'u' },
+ { "eject-media", no_argument, NULL, 'e' },
{ "debug", no_argument, NULL, 'd' },
{ "help", no_argument, NULL, 'h' },
{}
};
+ bool eject = false;
+ bool lock = false;
+ bool unlock = false;
const char *node = NULL;
- int export = 0;
int fd = -1;
int cnt;
int rc = 0;
while (1) {
int option;
- option = getopt_long(argc, argv, "dxh", options, NULL);
+ option = getopt_long(argc, argv, "deluh", options, NULL);
if (option == -1)
break;
switch (option) {
+ case 'l':
+ lock = true;
+ break;
+ case 'u':
+ unlock = true;
+ break;
+ case 'e':
+ eject = true;
+ break;
case 'd':
- debug = 1;
+ debug = true;
if (udev_get_log_priority(udev) < LOG_INFO)
udev_set_log_priority(udev, LOG_INFO);
break;
- case 'x':
- export = 1;
- break;
case 'h':
printf("Usage: cdrom_id [options] <device>\n"
- " --export export key/value pairs\n"
+ " --lock-media lock the media (to enable eject request events)\n"
+ " --unlock-media unlock the media\n"
+ " --eject-media eject the media\n"
" --debug debug to stderr\n"
" --help print this help text\n\n");
goto exit;
/* check if drive talks MMC */
if (cd_inquiry(udev, fd) < 0)
- goto print;
+ goto work;
/* read drive and possibly current profile */
- if (cd_profiles(udev, fd) < 0)
- goto print;
+ if (cd_profiles(udev, fd) != 0)
+ goto work;
+
+ /* at this point we are guaranteed to have media in the drive - find out more about it */
/* get session/track info */
cd_media_toc(udev, fd);
/* get writable media state */
cd_media_info(udev, fd);
-print:
+work:
+ /* lock the media, so we enable eject button events */
+ if (lock && cd_media) {
+ info(udev, "PREVENT_ALLOW_MEDIUM_REMOVAL (lock)\n");
+ media_lock(udev, fd, true);
+ }
+
+ if (unlock && cd_media) {
+ info(udev, "PREVENT_ALLOW_MEDIUM_REMOVAL (unlock)\n");
+ media_lock(udev, fd, false);
+ }
+
+ if (eject) {
+ info(udev, "PREVENT_ALLOW_MEDIUM_REMOVAL (unlock)\n");
+ media_lock(udev, fd, false);
+ info(udev, "START_STOP_UNIT (eject)\n");
+ media_eject(udev, fd);
+ }
+
printf("ID_CDROM=1\n");
if (cd_cd_rom)
printf("ID_CDROM_CD=1\n");
udev_log_close();
return rc;
}
-
~ianmdlvl / elogind.git / blobdiff