Robin Peng dbf355ee8b insmod: Add support to load kernel modules from /system/lib/modules
Bug: 267429528
Change-Id: I15a375cf1adeab12b969b2e3185ea6f55317d886
Signed-off-by: Robin Peng <robinpeng@google.com>
2023-03-16 01:31:03 +00:00

92 lines
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#!/vendor/bin/sh
#############################################################
### init.insmod.cfg format: ###
### ----------------------------------------------------- ###
### [insmod|setprop|enable/moprobe|wait] [path|prop name] ###
### ... ###
#############################################################
modules_dir=
system_modules_dir=
vendor_modules_dir=
for dir in system vendor; do
for f in /${dir}/lib/modules/*/modules.dep /${dir}/lib/modules/modules.dep; do
if [[ -f "$f" ]]; then
if [[ "${dir}" == "system" ]]; then
system_modules_dir="$(dirname "$f")"
else
vendor_modules_dir="$(dirname "$f")"
modules_dir=${vendor_modules_dir}
fi
break
fi
done
done
if [[ -z "${system_modules_dir}" ]]; then
echo "Unable to locate system kernel modules directory" 2>&1
fi
if [[ -z "${vendor_modules_dir}" ]]; then
echo "Unable to locate vendor kernel modules directory" 2>&1
exit 1
fi
# imitates wait_for_file() in init
wait_for_file()
{
filename="${1}"
timeout="${2:-5}"
expiry=$(($(date "+%s")+timeout))
while [[ ! -e "${filename}" ]] && [[ "$(date "+%s")" -le "${expiry}" ]]
do
sleep 0.01
done
}
if [ $# -eq 1 ]; then
cfg_file=$1
else
# Set property even if there is no insmod config
# to unblock early-boot trigger
setprop vendor.common.modules.ready
setprop vendor.device.modules.ready
setprop vendor.all.modules.ready
setprop vendor.all.devices.ready
exit 1
fi
if [ -f $cfg_file ]; then
while IFS="|" read -r action arg
do
case $action in
"insmod") insmod $arg ;;
"setprop") setprop $arg 1 ;;
"enable") echo 1 > $arg ;;
"modprobe")
case ${arg} in
"system -b *" | "system -b")
modules_dir=${system_modules_dir}
arg="-b --all=${system_modules_dir}/modules.load" ;;
"system *" | "system")
modules_dir=${system_modules_dir}
arg="--all=${system_modules_dir}/modules.load" ;;
"-b *" | "-b" | "vendor -b *" | "vendor -b")
modules_dir=${vendor_modules_dir}
arg="-b --all=${vendor_modules_dir}/modules.load" ;;
"*" | "" | "vendor *" | "vendor")
modules_dir=${vendor_modules_dir}
arg="--all=${vendor_modules_dir}/modules.load" ;;
esac
if [[ -d "${modules_dir}" ]]; then
modprobe -a -d "${modules_dir}" $arg
fi
;;
"wait") wait_for_file $arg ;;
esac
done < $cfg_file
fi