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-rw-r--r--recipes/udev/udev-097/init242
1 files changed, 242 insertions, 0 deletions
diff --git a/recipes/udev/udev-097/init b/recipes/udev/udev-097/init
new file mode 100644
index 0000000000..ff2ad8ef73
--- /dev/null
+++ b/recipes/udev/udev-097/init
@@ -0,0 +1,242 @@
+#!/bin/sh
+### BEGIN INIT INFO
+# Provides: udev
+# Required-Start: mountvirtfs
+# Required-Stop:
+# Default-Start: S
+# Default-Stop:
+# Short-Description: Start udevd, populate /dev and load drivers.
+### END INIT INFO
+
+# we need to unmount /dev/pts/ and remount it later over the tmpfs
+unmount_devpts() {
+ if mountpoint -q /dev/pts/; then
+ umount -l /dev/pts/
+ fi
+
+ if mountpoint -q /dev/shm/; then
+ umount -l /dev/shm/
+ fi
+}
+
+# mount a tmpfs over /dev, if somebody did not already do it
+mount_tmpfs() {
+ if grep -E -q "^[^[:space:]]+ /dev tmpfs" /proc/mounts; then
+ return
+ fi
+
+ # /dev/.static/dev/ is used by MAKEDEV to access the real /dev/ directory.
+ # /etc/udev/ is recycled as a temporary mount point because it's the only
+ # directory which is guaranteed to be available.
+ mount -n -o bind /dev /etc/udev
+
+ if ! mount -n -o size=$tmpfs_size,mode=0755 -t tmpfs tmpfs /dev; then
+ umount /etc/udev
+ echo "udev requires tmpfs support, not started."
+ exit 1
+ fi
+
+ mkdir -p /dev/.static/dev
+ chmod 700 /dev/.static/
+ # The mount options in busybox are non-standard...
+ if test -x /bin/mount.util-linux
+ then
+ /bin/mount.util-linux --move /etc/udev /dev/.static/dev
+ elif test -x /bin/busybox
+ then
+ busybox mount -n -o move /etc/udev /dev/.static/dev
+ else
+ echo "udev requires an identifiable mount command, not started."
+ umount /etc/udev
+ umount /dev
+ exit 1
+ fi
+}
+
+create_dev_makedev() {
+ if [ -e /sbin/MAKEDEV ]; then
+ [ ! -e /dev/MAKEDEV ] || ln -s /sbin/MAKEDEV /dev/MAKEDEV
+ else
+ ln -s /bin/true /dev/MAKEDEV
+ fi
+}
+
+# I hate this hack. -- Md
+make_extra_nodes() {
+ if [ "$(echo /lib/udev/devices/*)" != "/lib/udev/devices/*" ]; then
+ cp -a /lib/udev/devices/* /dev/
+ fi
+
+ [ -e /etc/udev/links.conf ] || return 0
+ grep '^[^#]' /etc/udev/links.conf | \
+ while read type name arg1; do
+ [ "$type" -a "$name" -a ! -e "/dev/$name" -a ! -L "/dev/$name" ] ||continue
+ case "$type" in
+ L) ln -s $arg1 /dev/$name ;;
+ D) mkdir -p /dev/$name ;;
+ M) mknod -m 600 /dev/$name $arg1 ;;
+ *) echo "links.conf: unparseable line ($type $name $arg1)" ;;
+ esac
+ done
+}
+
+supported_kernel() {
+ case "$(uname -r)" in
+ 2.[012345].*|2.6.[0-9]|2.6.[0-9][!0-9]*) return 1 ;;
+ 2.6.1[0-4]|2.6.1[0-4][!0-9]*) return 1 ;;
+ esac
+ return 0
+}
+
+load_input_modules() {
+ case "$(uname -r)" in
+ 2.6.1[0-5]|2.6.1[0-5][!0-9]*) ;; # <= 2.6.15
+ *) return 0
+ esac
+
+ for module in mousedev evdev joydev; do
+ modprobe -q $module || true
+ done
+}
+
+# shell version of /usr/bin/tty
+my_tty() {
+ [ -x /bin/readlink ] || return 0
+ [ -e /proc/self/fd/0 ] || return 0
+ readlink --silent /proc/self/fd/0 || true
+}
+
+warn_if_interactive() {
+ if [ "$RUNLEVEL" = "S" -a "$PREVLEVEL" = "N" ]; then
+ return
+ fi
+
+ TTY=$(my_tty)
+ if [ -z "$TTY" -o "$TTY" = "/dev/console" ]; then
+ return
+ fi
+
+ printf "\n\n\nIt has been detected that the command\n\n\t$0 $*\n\n"
+ printf "has been run from an interactive shell.\n"
+ printf "It will probably not do what you expect, so this script will wait\n"
+ printf "60 seconds before continuing. Press ^C to stop it.\n"
+ printf "RUNNING THIS COMMAND IS HIGHLY DISCOURAGED!\n\n\n\n"
+ sleep 60
+}
+
+##############################################################################
+
+[ -x /sbin/udevd ] || exit 0
+
+PATH="/sbin:/bin:/usr/bin"
+
+# defaults
+tmpfs_size="2M"
+udev_root="/dev"
+
+if [ -e /etc/udev/udev.conf ]; then
+ . /etc/udev/udev.conf
+fi
+
+if ! supported_kernel; then
+ echo "udev requires a kernel >= 2.6.15, not started."
+ exit 1
+fi
+
+if [ ! -e /proc/filesystems ]; then
+ echo "udev requires a mounted procfs, not started."
+ exit 1
+fi
+
+if ! grep -q '[[:space:]]tmpfs$' /proc/filesystems; then
+ echo "udev requires tmpfs support, not started."
+ exit 1
+fi
+
+if [ ! -d /sys/class/ ]; then
+ echo "udev requires a mounted sysfs, not started."
+ exit 1
+fi
+
+if [ ! -e /proc/sys/kernel/hotplug ]; then
+ echo "udev requires hotplug support, not started."
+ exit 1
+fi
+
+##############################################################################
+
+# When modifying this script, do not forget that between the time that
+# the new /dev has been mounted and udevsynthesize has been run there will be
+# no /dev/null. This also means that you cannot use the "&" shell command.
+
+udev_root=${udev_root%/}
+
+case "$1" in
+ start)
+ if [ -e "$udev_root/.udev/" ]; then
+ if mountpoint -q $udev_root/; then
+ TMPFS_MOUNTED=1
+ else
+ echo ".udev/ already exists on the static $udev_root!"
+ fi
+ else
+ warn_if_interactive
+ fi
+
+ echo > /proc/sys/kernel/hotplug
+
+ if [ -z "$TMPFS_MOUNTED" ]; then
+ unmount_devpts
+ mount_tmpfs
+ [ -d /proc/1 ] || mount -n /proc
+ fi
+
+ # /dev/null must be created before udevd is started
+ make_extra_nodes
+
+ echo "Starting the hotplug events dispatcher" "udevd"
+ udevd --daemon
+
+ # if this directory is not present /dev will not be updated by udev
+ mkdir -p /dev/.udev/db/ /dev/.udev/queue/
+
+ echo "Synthesizing the initial hotplug events"
+ udevtrigger
+
+ load_input_modules
+ create_dev_makedev
+
+ # wait for the udevd childs to finish
+ echo "Waiting for /dev to be fully populated"
+ if ! udevsettle; then
+ echo 'timeout'
+ fi
+ ;;
+
+ stop)
+ echo "Stopping the hotplug events dispatcher" "udevd"
+ start-stop-daemon --stop --name udevd --quiet
+ ;;
+
+ restart)
+ echo "Stopping the hotplug events dispatcher" "udevd"
+ if start-stop-daemon --stop --name udevd --quiet ; then
+ exit 1
+ fi
+
+ echo "Starting the hotplug events dispatcher" "udevd"
+ udevd --daemon
+ ;;
+
+ reload)
+ udevcontrol reload_rules
+ ;;
+
+ *)
+ echo "Usage: /etc/init.d/udev {start|stop|restart|reload}"
+ exit 1
+ ;;
+esac
+
+exit 0
+