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function create_config()
# Parameter: device
{
local device=$1
unload_config
# create the new configuration filesystem if it is not static
if [ "$USE_SEPERATE_CONFIG_PARTITION" != "1" ]
then log_msg "Using static configuration ..."
else log_msg "Creating config filesystem ..."
"$ROOT_PERM_SCRIPT" create_config "$device"
log_msg "Mounting config partition ..."
"$ROOT_PERM_SCRIPT" mount_config "$device"
"$ROOT_PERM_SCRIPT" remount_config rw
fi
log_msg "Copying configuration defaults ..."
cp -a "$CONFIG_DEFAULTS_DIR/." "$CONFIG_DIR"
log_msg "Copying temporary certificate file to config filesystem ..."
log_msg "Setting inital values ..."
# beware: config_set_value remounts the config partition read-only
config_set_value "ip" "$(get_current_ip)"
# create database of readable names
config_set_value "names.db" ""
# create a marker to recognize a cryptobox partition
# this should be the last step, to prevent a half-initialized state
config_set_value "$CONFIG_MARKER" "$(date -I)"
}
function find_harddisk()
# look for the harddisk to be partitioned
{
local device=$(get_available_disks | head -1)
if [ -z "$device" ] ; then
log_msg "no valid harddisk for initialisation found!"
cat /proc/partitions >>"$LOG_FILE"
# do not return with an error, to avoid a failing of the script ('break on error')
# the caller of this function should handle an empty return string
fi
echo -n "$device"
}
function load_config()
{
unload_config
local status=0
# look for a configuration partition
[ "$USE_SEPERATE_CONFIG_PARTITION" = "1" ] && \
list_partitions_of_type config | while read part && [ "$status" = 0 ]
do log_msg "configuraton found on $part"
# error check?
"$ROOT_PERM_SCRIPT" mount_config "/dev/$part"
status=1
done
if is_config_active
then return 0
else log_msg "failed to locate config partition"
return 1
fi
}
function unload_config()
{
is_config_active || return
# only try to unmount, if it is not static (the config of a live-cd is always dynamic)
if [ "$USE_SEPERATE_CONFIG_PARTITION" = "1" ]
then "$ROOT_PERM_SCRIPT" umount_config
else return 0
fi
}
# rename to "prepare_cryptobox"
function init_cryptobox()
# this is only the first part of initialisation that takes no time - good for a smooth web interface
{
local device=$(find_harddisk)
[ -z "$device" ] && log_msg 'No valid harddisk found!' && return 1
turn_off_all_crypto
unload_config || true
log_msg "Partitioning the device ($device) ..."
"$ROOT_PERM_SCRIPT" partition_disk "$device" "0,1,L \n,,L\n"
log_msg "Initializing config partition on ${device}1 ..."
# TODO: this should not be hard-coded
create_config "${device}1"
}
case "$ACTION" of
network-up )
if [ "$SKIP_NETWORK_CONFIG" != 1 ]
then conf_ip=$(config_get_value "ip")
log_msg "Configuring $NET_IFACE for $conf_ip ..."
echo "Configuring network interface for $NET_IFACE: $conf_ip"
"$IFCONFIG" "$NET_IFACE" "$conf_ip"
fi
if [ "$EXEC_FIREWALL_RULES" = 1 ]
then log_msg "Starting the firewall ..."
"$FIREWALL_SCRIPT" start
fi
if [ "$USE_STUNNEL" = 1 ]
then # start stunnel
if [ -f "$CERT_FILE" ]
then USE_CERT=$CERT_FILE
else USE_CERT=$CERT_TEMP
$MAKE_CERT_SCRIPT "$CERT_TEMP" >>"$LOG_FILE" 2>&1
# TODO: this could be dangerous - right?
# this is necessary, to allow www-data to copy the certificate
chown "$WEB_USER" "$CERT_TEMP"
fi
log_msg "Starting stunnel ..."
stunnel -p "$USE_CERT" -r localhost:80 -d 443 \
|| echo "$USE_CERT not found - not starting stunnel"
fi
;;
network-down )
if [ "$EXEC_FIREWALL_RULES" = 1 ]
then log_msg "Stopping the firewall ..."
"$FIREWALL_SCRIPT" stop
fi
if [ "$USE_STUNNEL" = 1 ]
then log_msg "Stopping stunnel ..."
# TODO: what about a pid?
killall stunnel 2>/dev/null || true
fi
if [ "$SKIP_NETWORK_CONFIG" != 1 ]
then log_msg "Shutting the network interface down ..."
"$IFCONFIG" "$NET_IFACE" down
fi
;;
services-up )
# the mount point has to be writeable
# this action is called as root - so we are allowed to umount
# TODO: do this only for ro-filesystem
# TODO: this way of mounting is evil
if mountpoint -q "$MNT_PARENT"
then true
else mount -t tmpfs tmpfs "$MNT_PARENT"
fi
true
;;
services-down )
# this action is called as root - so we are allowed to umount
mountpoint -q "$MNT_PARENT" && umount "$MNT_PARENT"
# TODO: we should not depend on samba and thttpd
# /etc/init.d/samba stop || true
# /etc/init.d/thttpd stop || true
true
;;
is_harddisk_available )
[ -z "$(find_harddisk)" ] && exit 1
exit 0
;;
update_ip_address )
# reconfigure the network interface to a new IP address
# wait for 5 seconds to finish present http requests
if [ "$SKIP_NETWORK_CONFIG" != 1 ]
then echo -n "sleep 5; \"$ROOT_PERM_SCRIPT\" update_network" | at now
fi
;;
poweroff )
log_msg "Turning off the CryptoBox ..."
turn_off_all_crypto
echo "poweroff" | at now
;;
reboot )
log_msg "Rebooting the CryptoBox ..."
turn_off_all_crypto
echo "reboot" | at now
;;
* )
echo "Syntax: $(basename $0) ACTION"
echo " config-up - scan for configuration partition and mount it"
echo " config-down - unmount configuration partition"
echo " network-up - enable network interface"
echo " network-down - disable network interface"
echo " services-up - run some cryptobox specific daemons"
echo " services-down - stop some cryptobox specific daemons"
echo " update_ip_address - update the network interface after reconfiguration"
echo " is_config_mounted - check, if configuration partition is mounted"
echo " box-init - initialize cryptobox (ALL data is LOST)"
echo " box-init-fg - the first part of initialization"
echo " box-init-bg - the last part of initialization (background)"
echo " is_harddisk_available - check, if there is a usable harddisk"
echo " poweroff - shutdown the cryptobox"
echo " reboot - reboot the cryptobox"
echo
;;
esac