diff options
Diffstat (limited to 'testing/udev/udev.initd')
| -rwxr-xr-x | testing/udev/udev.initd | 239 |
1 files changed, 239 insertions, 0 deletions
diff --git a/testing/udev/udev.initd b/testing/udev/udev.initd new file mode 100755 index 000000000..26774ab4a --- /dev/null +++ b/testing/udev/udev.initd @@ -0,0 +1,239 @@ +#!/sbin/runscript +# Copyright 1999-2008 Gentoo Foundation +# Distributed under the terms of the GNU General Public License v2 + +description="Run udevd and create the device-nodes" + +[ -e /etc/udev/udev.conf ] && . /etc/udev/udev.conf + +rc_coldplug=${rc_coldplug:-${RC_COLDPLUG:-YES}} + +depend() +{ + provide dev + if yesno "${rc_device_tarball:-no}"; then + need sysfs udev-mount udev-dev-tarball + else + need sysfs udev-mount + fi + before checkfs fsck + + # udev does not work inside vservers + keyword novserver +} + +cleanup() +{ + # fail more gracely and not leave udevd running + start-stop-daemon --stop --exec /sbin/udevd + exit 1 +} + +disable_hotplug_agent() +{ + if [ -e /proc/sys/kernel/hotplug ]; then + echo "" >/proc/sys/kernel/hotplug + fi +} + +root_link() +{ + /lib/udev/write_root_link_rule +} + +rules_disable_switch() +{ + # this function disables rules files + # by creating new files with the same name + # in a temp rules directory with higher priority + local d=/dev/.udev/rules.d bname="$1" onoff="$2" + + if yesno "${onoff}"; then + mkdir -p "$d" + echo "# This file disables ${bname} due to /etc/conf.d/udev" \ + > "${d}/${bname}" + else + rm -f "${d}/${bname}" + fi +} + +start_udevd() +{ + # load unix domain sockets if built as module, Bug #221253 + if [ -e /proc/modules ] ; then + modprobe -q unix 2>/dev/null + fi + ebegin "Starting udevd" + start-stop-daemon --start --exec /sbin/udevd -- --daemon + eend $? +} + +# populate /dev with devices already found by the kernel +populate_dev() +{ + if get_bootparam "nocoldplug" ; then + rc_coldplug="NO" + ewarn "Skipping udev coldplug as requested in kernel cmdline" + fi + + ebegin "Populating /dev with existing devices through uevents" + if yesno "${rc_coldplug}"; then + udevadm trigger + else + # Do not run any init-scripts, Bug #206518 + udevadm control --env do_not_run_plug_service=1 + + # only create device nodes + udevadm trigger --attr-match=dev + + # run persistent-net stuff, bug 191466 + udevadm trigger --subsystem-match=net + fi + eend $? + + ebegin "Waiting for uevents to be processed" + udevadm settle --timeout=${udev_settle_timeout:-60} + eend $? + + udevadm control --env do_not_run_plug_service= + return 0 +} + +# for debugging +start_udevmonitor() +{ + yesno "${udev_monitor:-no}" || return 0 + + udevmonitor_log=/dev/.udev/udevmonitor.log + udevmonitor_pid=/dev/.udev/udevmonitor.pid + + einfo "udev: Running udevadm monitor ${udev_monitor_opts} to get a log of all events" + start-stop-daemon --start --stdout "${udevmonitor_log}" \ + --make-pidfile --pidfile "${udevmonitor_pid}" \ + --background --exec /sbin/udevadm -- monitor ${udev_monitor_opts} +} + +stop_udevmonitor() +{ + yesno "${udev_monitor:-no}" || return 0 + + if yesno "${udev_monitor_keep_running:-no}"; then + ewarn "udev: udevmonitor is still running and writing into ${udevmonitor_log}" + else + einfo "udev: Stopping udevmonitor: Log is in ${udevmonitor_log}" + start-stop-daemon --stop --pidfile "${udevmonitor_pid}" --exec /sbin/udevadm + fi +} + +display_hotplugged_services() { + local svcfile= svc= services= + for svcfile in "${RC_SVCDIR}"/hotplugged/*; do + svc="${svcfile##*/}" + [ -x "${svcfile}" ] || continue + + # do not display this - better: do only inject it later :) + [ "$svc" = "udev-postmount" ] && continue + + services="${services} ${svc}" + done + [ -n "${services}" ] && einfo "Device initiated services:${HILITE}${services}${NORMAL}" +} + +inject_postmount_initd() { + if ! mark_service_hotplugged udev-postmount; then + IN_HOTPLUG=1 /etc/init.d/udev-postmount start >/dev/null 2>&1 + fi + #einfo "Injected udev-postmount service" +} + +check_persistent_net() +{ + # check if there are problems with persistent-net + local syspath= devs= problem=false + for syspath in /sys/class/net/*_rename*; do + if [ -d "${syspath}" ]; then + devs="${devs} ${syspath##*/}" + problem=true + fi + done + + ${problem} || return 0 + + eerror "UDEV: Your system has a problem assigning persistent names" + eerror "to these network interfaces: ${devs}" + + einfo "Checking persistent-net rules:" + # the sed-expression lists all duplicate lines + # from the input, like "uniq -d" does, but uniq + # is installed into /usr/bin and not available at boot. + dups=$( + RULES_FILE='/etc/udev/rules.d/70-persistent-net.rules' + . /lib/udev/rule_generator.functions + find_all_rules 'NAME=' '.*' | \ + tr ' ' '\n' | \ + sort | \ + sed '$!N; s/^\(.*\)\n\1$/\1/; t; D' + ) + if [ -n "${dups}" ]; then + ewarn "The rules create multiple entries assigning these names:" + eindent + ewarn "${dups}" + eoutdent + else + ewarn "Found no duplicate names in persistent-net rules," + ewarn "there must be some other problem!" + fi + return 1 +} + +check_udev_works() +{ + # should exist on every system, else udev failed + if [ ! -e /dev/zero ]; then + eerror "Assuming udev failed somewhere, as /dev/zero does not exist." + return 1 + fi + return 0 +} + +start() +{ + # do not run this on old baselayout where udev-addon gets loaded + if [ ! -f /etc/init.d/sysfs ]; then + eerror "The $SVCNAME init-script is written for baselayout-2!" + eerror "Please do not use it with baselayout-1!". + return 1 + fi + + _start + + display_hotplugged_services + + inject_postmount_initd +} + +_start() +{ + root_link + rules_disable_switch 75-persistent-net-generator.rules "${persistent_net_disable:-no}" + rules_disable_switch 75-cd-aliases-generator.rules ${persistent_cd_disable:-no} + + disable_hotplug_agent + start_udevd || cleanup + start_udevmonitor + populate_dev || cleanup + + check_persistent_net + + check_udev_works || cleanup + stop_udevmonitor + + return 0 +} + +stop() { + ebegin "Stopping udevd" + start-stop-daemon --stop --exec /sbin/udevd + eend $? +} + |