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#!/bin/sh
# Do not continue for non-modular kernel - Bug #168322
[ ! -f /proc/modules ] && exit 0
if [ -e /dev/.udev_populate ]; then
# Enable verbose while called from udev-addon-start
. /dev/.udev_populate
if [ -c "${CONSOLE}" ]; then
# redirect stdin/out/err
exec <${CONSOLE} >${CONSOLE} 2>/${CONSOLE}
fi
fi
# set default if not present in udev.conf
implicitly_blacklist_modules_autoload="yes"
MODPROBE=/sbin/modprobe
. /etc/init.d/functions.sh
[ -e /etc/udev/udev.conf ] && . /etc/udev/udev.conf
# Create a lock file for the current module.
lock_modprobe() {
[ -e /dev/.udev/ ] || return 0
MODPROBE_LOCK="/dev/.udev/.lock-modprobe-${MODNAME}"
retry=20
while ! mkdir "$MODPROBE_LOCK" 2> /dev/null; do
if [ $retry -eq 0 ]; then
ewarn "Could not lock modprobe ${MODNAME}!"
return 1
fi
sleep 1
retry=$(($retry - 1))
done
return 0
}
unlock_modprobe() {
[ "$MODPROBE_LOCK" ] || return 0
rmdir "$MODPROBE_LOCK" || true
MODPROBE_LOCK=""
}
load_module() {
# Get normalized names only with _
local MODLIST=$("${MODPROBE}" -q -i --show-depends "${@}" 2>/dev/null \
| sed -e "s#^insmod /lib.*/\(.*\)\.ko.*#\1#g" -e 's|-|_|g')
# exit if you have no modules to load
[ -z "${MODLIST}" ] && return 0
local m
for m in ${MODLIST}; do
MODNAME=$m
done
lock_modprobe
if [ -d /sys/module/"${MODNAME}" ]; then
# already loaded
unlock_modprobe
return 0
fi
# build regex to match module name written with either - or _
MOD_REGEX="$(echo "${MODNAME}"|sed -e 's#_#[-_]#g')"
# check for blacklisting
if [ -f /etc/modprobe.conf ]; then
if grep -q '^blacklist.*[[:space:]]'"${MOD_REGEX}"'\([[:space:]]\|$\)' /etc/modprobe.conf; then
# module blacklisted
unlock_modprobe
return 0
fi
fi
if [ "$implicitly_blacklist_modules_autoload" = "yes" -a -f "${MODULES_AUTOLOAD_FILE}" ]; then
if grep -q "^${MOD_REGEX}"'\([[:space:]]\|$\)' "${MODULES_AUTOLOAD_FILE}"; then
# module implictly blacklisted
# as present in modules.autoload, Bug 184833
unlock_modprobe
return 0
fi
fi
# now do real loading
einfo " udev loading module ${MODNAME}"
"${MODPROBE}" -q "${@}" >/dev/null 2>/dev/null
unlock_modprobe
}
while [ -n "${1}" ]; do
case "${1}" in
--all|-a) ;;
*) load_module "${1}" ;;
esac
shift
done
|
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