diff options
Diffstat (limited to 'meta/recipes-core/udev/udev-extraconf/mount.sh')
-rw-r--r-- | meta/recipes-core/udev/udev-extraconf/mount.sh | 198 |
1 files changed, 165 insertions, 33 deletions
diff --git a/meta/recipes-core/udev/udev-extraconf/mount.sh b/meta/recipes-core/udev/udev-extraconf/mount.sh index d760328a09..c19e2aa68a 100644 --- a/meta/recipes-core/udev/udev-extraconf/mount.sh +++ b/meta/recipes-core/udev/udev-extraconf/mount.sh @@ -4,47 +4,165 @@ # # Attempt to mount any added block devices and umount any removed devices +BASE_INIT="`readlink -f "@base_sbindir@/init"`" +INIT_SYSTEMD="@systemd_unitdir@/systemd" +MOUNT_BASE="@MOUNT_BASE@" + +if [ "x$BASE_INIT" = "x$INIT_SYSTEMD" ];then + # systemd as init uses systemd-mount to mount block devices + MOUNT="/usr/bin/systemd-mount" + UMOUNT="/usr/bin/systemd-umount" + + if [ -x $MOUNT ] && [ -x $UMOUNT ]; + then + logger "Using systemd-mount to finish mount" + else + logger "Linux init is using systemd, so please install systemd-mount to finish mount" + exit 1 + fi +else + MOUNT="/bin/mount" + UMOUNT="/bin/umount" +fi -MOUNT="/bin/mount" PMOUNT="/usr/bin/pmount" -UMOUNT="/bin/umount" -for line in `grep -h -v ^# /etc/udev/mount.blacklist /etc/udev/mount.blacklist.d/*` + +for line in `grep -h -v ^# /etc/udev/mount.ignorelist /etc/udev/mount.ignorelist.d/*` do if [ ` expr match "$DEVNAME" "$line" ` -gt 0 ]; then - logger "udev/mount.sh" "[$DEVNAME] is blacklisted, ignoring" + logger "udev/mount.sh" "[$DEVNAME] is marked to ignore" exit 0 fi done -automount() { +is_filesystem_supported() { + while read -r fs; do + if [ "${fs#nodev}" = "$1" ]; + then + return 0 + fi + done < "/proc/filesystems" + return 1 +} + +automount_systemd() { + name="`basename "$DEVNAME"`" + + # Skip already mounted partitions + if [ -f /run/systemd/transient/$(echo $MOUNT_BASE | cut -d '/' -f 2- | sed 's#/#-#g')-*$name.mount ]; then + logger "mount.sh/automount" "$MOUNT_BASE/$name already mounted" + return + fi + + # Get the unique name for mount point + get_label_name "${DEVNAME}" + + # Only go for auto-mounting when the device has been cleaned up in remove + # or has not been identified yet + if [ -e "/tmp/.automount-$name" ]; then + logger "mount.sh/automount" "[$MOUNT_BASE/$name] is already cached" + return + fi + + # Skip the partition which are already in /etc/fstab + grep "^[[:space:]]*$DEVNAME" /etc/fstab && return + for n in LABEL PARTLABEL UUID PARTUUID; do + tmp="$(lsblk -o $n $DEVNAME | sed -e '1d')" + test -z "$tmp" && continue + tmp="$n=$tmp" + grep "^[[:space:]]*$tmp" /etc/fstab && return + done + + if ! is_filesystem_supported $ID_FS_TYPE; then + logger "mount.sh/automount" "Filesystem '$ID_FS_TYPE' on '${DEVNAME}' is unsupported" + return + fi + + [ -d "$MOUNT_BASE/$name" ] || mkdir -p "$MOUNT_BASE/$name" + + MOUNT="$MOUNT -o silent" + + # If filesystemtype is vfat, change the ownership group to 'disk', and + # grant it with w/r/x permissions. + case $ID_FS_TYPE in + vfat|fat) + MOUNT="$MOUNT -o umask=007,gid=`awk -F':' '/^disk/{print $3}' /etc/group`" + ;; + swap) + return ;; + lvm*|LVM*) + return ;; + # TODO + *) + ;; + esac + + if ! $MOUNT --no-block -t auto $DEVNAME "$MOUNT_BASE/$name" + then + #logger "mount.sh/automount" "$MOUNT -t auto $DEVNAME \"$MOUNT_BASE/$name\" failed!" + rm_dir "$MOUNT_BASE/$name" + else + logger "mount.sh/automount" "Auto-mount of [$MOUNT_BASE/$name] successful" + echo "$name" > "/tmp/.automount-$name" + fi +} + +automount() { name="`basename "$DEVNAME"`" - ! test -d "/run/media/$name" && mkdir -p "/run/media/$name" + if [ -x "$PMOUNT" ]; then + $PMOUNT $DEVNAME 2> /dev/null + elif [ -x $MOUNT ]; then + $MOUNT $DEVNAME 2> /dev/null + fi + + # If the device isn't mounted at this point, it isn't + # configured in fstab + grep -q "^$DEVNAME " /proc/mounts && return + + # Get the unique name for mount point + get_label_name "${DEVNAME}" + + # Only go for auto-mounting when the device has been cleaned up in remove + # or has not been identified yet + if [ -e "/tmp/.automount-$name" ]; then + logger "mount.sh/automount" "[$MOUNT_BASE/$name] is already cached" + return + fi + + ! test -d "$MOUNT_BASE/$name" && mkdir -p "$MOUNT_BASE/$name" # Silent util-linux's version of mounting auto if [ "x`readlink $MOUNT`" = "x/bin/mount.util-linux" ] ; then MOUNT="$MOUNT -o silent" fi - + # If filesystem type is vfat, change the ownership group to 'disk', and # grant it with w/r/x permissions. case $ID_FS_TYPE in vfat|fat) MOUNT="$MOUNT -o umask=007,gid=`awk -F':' '/^disk/{print $3}' /etc/group`" ;; + swap) + return ;; + lvm*|LVM*) + return ;; # TODO *) ;; esac - if ! $MOUNT -t auto $DEVNAME "/run/media/$name" + if ! $MOUNT -t auto $DEVNAME "$MOUNT_BASE/$name" then - #logger "mount.sh/automount" "$MOUNT -t auto $DEVNAME \"/run/media/$name\" failed!" - rm_dir "/run/media/$name" + #logger "mount.sh/automount" "$MOUNT -t auto $DEVNAME \"$MOUNT_BASE/$name\" failed!" + rm_dir "$MOUNT_BASE/$name" else - logger "mount.sh/automount" "Auto-mount of [/run/media/$name] successful" - touch "/tmp/.automount-$name" + logger "mount.sh/automount" "Auto-mount of [$MOUNT_BASE/$name] successful" + # The actual device might not be present in the remove event so blkid cannot + # be used to calculate what name was generated here. Simply save the mount + # name in our tmp file. + echo "$name" > "/tmp/.automount-$name" fi } @@ -58,33 +176,47 @@ rm_dir() { fi } +get_label_name() { + # Get the LABEL or PARTLABEL + LABEL=`/sbin/blkid | grep "$1:" | grep -o 'LABEL=".*"' | cut -d '"' -f2` + # If the $DEVNAME has a LABEL or a PARTLABEL + if [ -n "$LABEL" ]; then + # Set the mount location dir name to LABEL appended + # with $name e.g. label-sda. That would avoid overlapping + # mounts in case two devices have same LABEL + name="${LABEL}-${name}" + fi +} + # No ID_FS_TYPE for cdrom device, yet it should be mounted name="`basename "$DEVNAME"`" [ -e /sys/block/$name/device/media ] && media_type=`cat /sys/block/$name/device/media` if [ "$ACTION" = "add" ] && [ -n "$DEVNAME" ] && [ -n "$ID_FS_TYPE" -o "$media_type" = "cdrom" ]; then - if [ -x "$PMOUNT" ]; then - $PMOUNT $DEVNAME 2> /dev/null - elif [ -x $MOUNT ]; then - $MOUNT $DEVNAME 2> /dev/null - fi - - # If the device isn't mounted at this point, it isn't - # configured in fstab (note the root filesystem can show up as - # /dev/root in /proc/mounts, so check the device number too) - if expr $MAJOR "*" 256 + $MINOR != `stat -c %d /`; then - grep -q "^$DEVNAME " /proc/mounts || automount - fi + # Note the root filesystem can show up as /dev/root in /proc/mounts, + # so check the device number too + if expr $MAJOR "*" 256 + $MINOR != `stat -c %d /`; then + if [ "`basename $MOUNT`" = "systemd-mount" ];then + automount_systemd + else + automount + fi + fi fi - if [ "$ACTION" = "remove" ] || [ "$ACTION" = "change" ] && [ -x "$UMOUNT" ] && [ -n "$DEVNAME" ]; then - for mnt in `cat /proc/mounts | grep "$DEVNAME" | cut -f 2 -d " " ` - do - $UMOUNT $mnt - done - - # Remove empty directories from auto-mounter - name="`basename "$DEVNAME"`" - test -e "/tmp/.automount-$name" && rm_dir "/run/media/$name" + name="`basename "$DEVNAME"`" + tmpfile=`find /tmp | grep "\.automount-.*${name}$"` + if [ ! -e "/sys/$DEVPATH" -a -e "$tmpfile" ]; then + logger "mount.sh/remove" "cleaning up $DEVNAME, was mounted by the auto-mounter" + for mnt in `cat /proc/mounts | grep "$DEVNAME" | cut -f 2 -d " " ` + do + $UMOUNT "`printf $mnt`" + done + # Remove mount directory created by the auto-mounter + # and clean up our tmp cache file + mntdir=`cat "$tmpfile"` + rm_dir "$MOUNT_BASE/$mntdir" + rm "$tmpfile" + fi fi |