Patrick Williams | c124f4f | 2015-09-15 14:41:29 -0500 | [diff] [blame] | 1 | #!/bin/sh |
| 2 | |
| 3 | ### BEGIN INIT INFO |
| 4 | # Provides: udev |
| 5 | # Required-Start: mountvirtfs |
| 6 | # Required-Stop: |
| 7 | # Default-Start: S |
| 8 | # Default-Stop: |
| 9 | # Short-Description: Start udevd, populate /dev and load drivers. |
| 10 | ### END INIT INFO |
| 11 | |
| 12 | export TZ=/etc/localtime |
| 13 | |
| 14 | [ -d /sys/class ] || exit 1 |
| 15 | [ -r /proc/mounts ] || exit 1 |
| 16 | [ -x @UDEVD@ ] || exit 1 |
Patrick Williams | c124f4f | 2015-09-15 14:41:29 -0500 | [diff] [blame] | 17 | |
Patrick Williams | c124f4f | 2015-09-15 14:41:29 -0500 | [diff] [blame] | 18 | [ -f /etc/udev/udev.conf ] && . /etc/udev/udev.conf |
| 19 | [ -f /etc/default/rcS ] && . /etc/default/rcS |
| 20 | |
| 21 | kill_udevd () { |
| 22 | pid=`pidof -x udevd` |
| 23 | [ -n "$pid" ] && kill $pid |
| 24 | } |
| 25 | |
Andrew Geissler | d583833 | 2022-05-27 11:33:10 -0500 | [diff] [blame^] | 26 | make_static_nodes () { |
| 27 | [ -e /lib/modules/$(uname -r)/modules.devname ] || return 0 |
| 28 | [ -x @KMOD@ ] || return 0 |
| 29 | |
| 30 | #output to /proc/self/fd/1 since /dev/stdout not created by udevd yet |
| 31 | @KMOD@ static-nodes --format=tmpfiles --output=/proc/self/fd/1 | |
| 32 | while read TTYPE TPATH TMODE TUSER TGROUP TAGE TARG; do |
| 33 | case "${TTYPE}" in |
| 34 | 'd') |
| 35 | test -d "${TPATH}" || mkdir -p -m "${TMODE}" "${TPATH}" |
| 36 | ;; |
| 37 | |
| 38 | 'c!') |
| 39 | if [ ! -c "${TPATH}" ]; then |
| 40 | old_ifs="${IFS}" |
| 41 | IFS=: |
| 42 | set -- ${TARG} |
| 43 | IFS="${old_ifs}" |
| 44 | mknod -m "${TMODE}" "${TPATH}" c "$@" |
| 45 | fi |
| 46 | ;; |
| 47 | |
| 48 | *) |
| 49 | echo "Unparseable line (${TTYPE} ${TPATH} ${TMODE} ${TUSER} ${TGROUP} ${TAGE} ${TARG})" |
| 50 | return 1 |
| 51 | ;; |
| 52 | esac |
| 53 | if [ "${TUSER}" != "-" ]; then |
| 54 | chown "${TUSER}" "${TPATH}" |
| 55 | fi |
| 56 | if [ "${TGROUP}" != "-" ]; then |
| 57 | chgrp "${TGROUP}" "${TPATH}" |
| 58 | fi |
| 59 | done |
| 60 | } |
| 61 | |
Patrick Williams | c124f4f | 2015-09-15 14:41:29 -0500 | [diff] [blame] | 62 | case "$1" in |
| 63 | start) |
| 64 | export ACTION=add |
| 65 | # propagate /dev from /sys |
| 66 | echo "Starting udev" |
| 67 | |
| 68 | # Check for requireed devtmpfs before trying to start udev and |
| 69 | # mount a no-existant fs. |
| 70 | if ! grep -q devtmpfs /proc/filesystems |
| 71 | then |
| 72 | echo "Missing devtmpfs, which is required for udev to run"; |
| 73 | echo "Halting..." |
| 74 | halt |
| 75 | fi |
| 76 | # mount the devtmpfs on /dev, if not already done |
| 77 | LANG=C awk '$2 == "/dev" && ($3 == "devtmpfs") { exit 1 }' /proc/mounts && { |
| 78 | mount -n -o mode=0755 -t devtmpfs none "/dev" |
| 79 | } |
| 80 | [ -e /dev/pts ] || mkdir -m 0755 /dev/pts |
| 81 | [ -e /dev/shm ] || mkdir -m 1777 /dev/shm |
| 82 | # the automount rule for udev needs /tmp directory available, as /tmp is a symlink |
| 83 | # to /var/tmp which in turn is a symlink to /var/volatile/tmp, we need to make sure |
| 84 | # /var/volatile/tmp directory to be available. |
| 85 | mkdir -m 1777 -p /var/volatile/tmp |
| 86 | |
Patrick Williams | c124f4f | 2015-09-15 14:41:29 -0500 | [diff] [blame] | 87 | # make_extra_nodes |
| 88 | kill_udevd > "/dev/null" 2>&1 |
| 89 | |
Andrew Geissler | d583833 | 2022-05-27 11:33:10 -0500 | [diff] [blame^] | 90 | make_static_nodes |
Patrick Williams | c124f4f | 2015-09-15 14:41:29 -0500 | [diff] [blame] | 91 | # trigger the sorted events |
Andrew Geissler | 6ce62a2 | 2020-11-30 19:58:47 -0600 | [diff] [blame] | 92 | [ -e /proc/sys/kernel/hotplug ] && printf '\0\n' >/proc/sys/kernel/hotplug |
Patrick Williams | c124f4f | 2015-09-15 14:41:29 -0500 | [diff] [blame] | 93 | @UDEVD@ -d |
| 94 | |
| 95 | udevadm control --env=STARTUP=1 |
| 96 | if [ "$not_first_boot" != "" ];then |
| 97 | if [ "$PROBE_PLATFORM_BUS" != "yes" ]; then |
| 98 | PLATFORM_BUS_NOMATCH="--subsystem-nomatch=platform" |
| 99 | else |
| 100 | PLATFORM_BUS_NOMATCH="" |
| 101 | fi |
| 102 | udevadm trigger --action=add --subsystem-nomatch=tty --subsystem-nomatch=mem --subsystem-nomatch=vc --subsystem-nomatch=vtconsole --subsystem-nomatch=misc --subsystem-nomatch=dcon --subsystem-nomatch=pci_bus --subsystem-nomatch=graphics --subsystem-nomatch=backlight --subsystem-nomatch=video4linux $PLATFORM_BUS_NOMATCH |
| 103 | (udevadm settle --timeout=3; udevadm control --env=STARTUP=)& |
| 104 | else |
| 105 | udevadm trigger --action=add |
| 106 | udevadm settle |
| 107 | fi |
| 108 | ;; |
| 109 | stop) |
| 110 | echo "Stopping udevd" |
| 111 | start-stop-daemon --stop --name udevd --quiet |
| 112 | ;; |
| 113 | restart) |
| 114 | $0 stop |
| 115 | sleep 1 |
| 116 | $0 start |
| 117 | ;; |
| 118 | status) |
| 119 | pid=`pidof -x udevd` |
| 120 | if [ -n "$pid" ]; then |
| 121 | echo "udevd (pid $pid) is running ..." |
| 122 | else |
| 123 | echo "udevd is stopped" |
| 124 | fi |
| 125 | ;; |
| 126 | *) |
| 127 | echo "Usage: $0 {start|stop|status|restart}" |
| 128 | exit 1 |
| 129 | esac |
| 130 | exit 0 |