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#!/bin/sh
CONFIG_MTDC=/dev/mtd6
CONFIG_MTDB=/dev/mtdblock6
CONFIG_DIR=/var/config
RUN_CONF_DIR=/run/config
OEM_MTDC=/dev/mtd7
OEM_MTDB=/dev/mtdblock7
OEM_DIR=/var/oem
FILES="network/interfaces \
ppp/options \
ppp/pap-secrets \
ppp/chap-secrets \
ppp/peers \
"
# Files used by bluetooth or wifi.
BTWIFIFILES="\
bluetooth/ \
default/bluetooth \
default/bt-pan \
default/dnsmasq \
default/hostapd \
default/ifplugd \
dnsmasq.d/ \
hosts \
hostname \
hostapd.conf \
modprobe.d/ \
wpa_supplicant.conf \
"
# mts-io driver may not be loaded
if [[ -L /etc/default/rs9113 ]] || [[ -f /etc/default/rs9113 ]] || [[ -d /opt/rs9113 ]] ; then
BTWIFIFILES+="default/rs9113 "
fi
# File hidden so it is not removed on hardware reset
WIFITAR=".defaults2.tar.gz"
mount_config() {
echo "Mounting ${CONFIG_DIR}"
mkdir -p ${CONFIG_DIR}
mount ${CONFIG_DIR}
# Prepare flash for JFFS2 or EXT4 if mount fails
if [ $? -ne 0 ]; then
echo "Creating ${CONFIG_DIR}"
fs=$(mount -fvn ${CONFIG_DIR})
if [[ $fs =~ [[:space:]]*(/dev/(...)[^[:space:]]*) ]] ; then
if [[ ${BASH_REMATCH[2]} == mmc ]] ; then
# One more check for empty
mdev="${BASH_REMATCH[1]}"
if [[ $(dd if=$mdev count=4 2>/dev/null | tr -d '\0' | wc -c) == 0 ]] ; then
mkfs.ext4 -O 64bit ${mdev}
fi
else
flash_erase -j ${CONFIG_MTDC} 0 0
fi
fi
mount ${CONFIG_DIR}
fi
}
mount_oem() {
echo "Mounting ${OEM_DIR}"
mkdir -p ${OEM_DIR}
mount ${OEM_DIR}
# Prepare flash for JFFS2 or EXT4 if mount fails
# Prepare flash for JFFS2 or EXT4 if mount fails
if [ $? -ne 0 ]; then
echo "Creating ${OEM_DIR}"
fs=$(mount -fvn ${OEM_DIR})
if [[ $fs =~ [[:space:]]*(/dev/(...)[^[:space:]]*) ]] ; then
if [[ ${BASH_REMATCH[2]} == mmc ]] ; then
mdev="${BASH_REMATCH[1]}"
if [[ $(dd if=$mdev count=4 2>/dev/null | tr -d '\0' | wc -c) == 0 ]] ; then
mkfs.ext4 -O 64bit ${mdev}
fi
else
flash_erase -j ${OEM_MTDC} 0 0
fi
fi
mount ${OEM_DIR}
fi
}
case $1 in
start)
# mount config if not already mounted
if ! grep -q " ${CONFIG_DIR} " /proc/mounts; then
mount_config
else
echo "$CONFIG_DIR already mounted"
fi
# mount oem if specified in /etc/fstab and it isn't already mounted
if mount -fvn "${OEM_DIR}" ; then
if ! grep -q " ${OEM_DIR} " /proc/mounts; then
mount_oem
else
echo "$OEM_DIR already mounted"
fi
fi
# Default all config files if requested
cd ${CONFIG_DIR}
if [ -f force_defaults ]; then
echo "Extracting default config files"
tar -xvf /etc/defaults.tar.gz
if [[ -f ${WIFITAR} ]] ; then
echo "Extract original wifi related files"
tar -xvf ${WIFITAR}
fi
rm -f force_defaults
fi
# Extract any missing files
TARFILES=`tar -tf /etc/defaults.tar.gz`
for file in $TARFILES; do
if [ ! -e $file ]; then
tar -xvf /etc/defaults.tar.gz $file
fi
done
# Create links in /etc
for file in $FILES; do
if [ ! -L /etc/$file ]; then
echo "Creating link to ${CONFIG_DIR}/$file"
rm -rf /etc/$file
ln -sf ${CONFIG_DIR}/$file /etc/$file
fi
done
# Move bluetooth wifi stuff to config directory.
# We don't have factory defaults.
((dobackup=1))
for file in ${BTWIFIFILES}; do
if [[ -L /etc/$file ]]; then
((dobackup=0))
break
fi
done
if ((dobackup==1)) ; then
tar -C /etc -czf ${CONFIG_DIR}/${WIFITAR} ${BTWIFIFILES}
fi
for file in ${BTWIFIFILES}; do
# If last character is /, make the CONFIG directory.
if [[ ${file: -1} == / ]] ; then
file=${file%?}
echo directory $file operations
if ! [[ -d ${CONFIG_DIR}/$file ]] ; then
rm -f ${CONFIG_DIR}/$file 2>/dev/null || true
mkdir ${CONFIG_DIR}/$file
fi
fi
if [[ ! -L /etc/$file ]]; then
echo "Creating link to ${CONFIG_DIR}/$file"
dir=$(dirname $file)
if [[ $dir != '.' ]] ; then
mkdir -p "$dir"
fi
rm -rf old
mkdir old
if ! [[ -f $file ]] ; then
# Need to preserve old files which is difficult with busybox!
if [[ -d $file ]] || [[ -f $file ]] ; then
cp --parents -a $file old || true
fi
(
cd /etc
if [[ -d $file ]] || [[ -f $file ]] ; then
cp --parents -a $file ${CONFIG_DIR} || true
fi
)
(
cd old
if [[ -d $file ]] || [[ -f $file ]] ; then
cp --parents -a $file .. || true
fi
)
rm -rf old
fi
rm -rf /etc/$file
ln -sf ${CONFIG_DIR}/$file /etc/$file
fi
done
;;
*)
echo "Usage: $0 {start}"
exit 2
;;
esac
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