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#!/sbin/runscript
# Copyright 1999-2010 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
command=/usr/lib/systemd/systemd-udevd
command_args="--daemon ${udev_opts}"
description="udev manages device permissions and symbolic links in /dev"
rc_coldplug=${rc_coldplug:-${RC_COLDPLUG:-YES}}
udev_debug="${udev_debug:-no}"
udev_monitor="${udev_monitor:-no}"
udev_monitor_keep_running="${udev_monitor_keep_running:-no}"
udev_settle_wait="${udev_settle_wait:-NO}"
udev_settle_timeout="${udev_settle_timeout:-60}"
kv_min="${kv_min:-2.6.34}"
depend()
{
provide dev
need sysfs udev-mount
before checkfs fsck
# udev does not work inside vservers
keyword -vserver -lxc
}
KV_to_int()
{
[ -z $1 ] && return 1
local x=${1%%[!0-9.]*} y= z=
local KV_MAJOR=${x%%.*}
y=${x#*.}
[ "$x" = "$y" ] && y=0.0
local KV_MINOR=${y%%.*}
z=${y#*.}
[ "$y" = "$z" ] && z=0
local KV_MICRO=${z%%.*}
local KV_int=$((${KV_MAJOR} * 65536 + ${KV_MINOR} * 256 + ${KV_MICRO} ))
# We make version 2.2.0 the minimum version we will handle as
# a sanity check ... if its less, we fail ...
[ "${KV_int}" -lt 131584 ] && return 1
echo "${KV_int}"
}
_RC_GET_KV_CACHE=""
get_KV()
{
if [ -z "${_RC_GET_KV_CACHE}" ] ; then
_RC_GET_KV_CACHE="$(uname -r)"
fi
echo "$(KV_to_int "${_RC_GET_KV_CACHE}")"
return $?
}
# FIXME
# Instead of this script testing kernel version, udev itself should
# Maybe something like udevd --test || exit $?
check_kernel()
{
if [ $(get_KV) -lt $(KV_to_int ${kv_min}) ]; then
eerror "Your kernel is too old to work with this version of udev."
eerror "Current udev only supports Linux kernel ${kv_min} and newer."
return 1
fi
return 0
}
start_pre()
{
check_kernel || return 1
if [ -e /proc/sys/kernel/hotplug ]; then
echo "" >/proc/sys/kernel/hotplug
fi
# load unix domain sockets if built as module, Bug #221253
# and not yet loaded, Bug #363549
if [ ! -e /proc/net/unix ]; then
if ! modprobe unix; then
eerror "Cannot load the unix domain socket module"
fi
fi
if yesno "${udev_debug}"; then
command_args="${command_args} --debug 2> /run/udevdebug.log"
fi
}
is_service_enabled()
{
local svc="$1"
[ ! -e "/etc/init.d/${svc}" ] && return 1
[ -e "/etc/runlevels/${RC_BOOTLEVEL}/${svc}" ] && return 0
[ -e "/etc/runlevels/${RC_DEFAULTLEVEL}/${svc}" ] && return 0
return 1
}
disable_oldnet_hotplug()
{
if is_service_enabled network; then
# disable network hotplugging
local f="/run/udev/rules.d/90-network.rules"
echo "# This file disables network hotplug events calling" >> "${f}"
echo "# old-style openrc net scripts" >> "${f}"
echo "# as we use /etc/init.d/network to set up our network" >> "${f}"
fi
}
start_udevmonitor()
{
yesno "${udev_monitor}" || return 0
udevmonitor_log=/run/udevmonitor.log
udevmonitor_pid=/run/udevmonitor.pid
einfo "udev: Running udevadm monitor ${udev_monitor_opts} to log all events"
start-stop-daemon --start --stdout "${udevmonitor_log}" \
--make-pidfile --pidfile "${udevmonitor_pid}" \
--background --exec /sbin/udevadm -- monitor ${udev_monitor_opts}
}
populate_dev()
{
if get_bootparam "nocoldplug" ; then
rc_coldplug="NO"
ewarn "Skipping udev coldplug as requested in kernel cmdline"
fi
ebegin "Populating /dev with existing devices through uevents"
if ! yesno "${rc_coldplug}"; then
# Do not run any init-scripts, Bug #206518
udevadm control --property=do_not_run_plug_service=1
fi
udevadm trigger --type=subsystems --action=add
udevadm trigger --type=devices --action=add
eend $?
if yesno "${udev_settle_wait}"; then
ebegin "Waiting for uevents to be processed"
udevadm settle --timeout=${udev_settle_timeout}
eend $?
fi
udevadm control --property=do_not_run_plug_service=
return 0
}
stop_udevmonitor()
{
yesno "${udev_monitor}" || return 0
if yesno "${udev_monitor_keep_running}"; 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 "${svcfile}" ] || continue
services="${services} ${svc}"
done
[ -n "${services}" ] && einfo "Device initiated services:${HILITE}${services}${NORMAL}"
}
start_post()
{
disable_oldnet_hotplug
start_udevmonitor
populate_dev
stop_udevmonitor
display_hotplugged_services
return 0
}
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