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#!/bin/sh /etc/rc.common
#
# Fwknop is developed primarily by the people listed in the file 'AUTHORS'.
# Copyright (C) 2009-2014 fwknop developers and contributors. For a full
# list of contributors, see the file 'CREDITS'.
#
USE_PROCD=1
START=95
FWKNOPD_BIN=/usr/sbin/fwknopd
start_service()
{
generate_configuration
if [ -n "$DEPEND_IFNAME" ] ; then
# We know the interface, so we can start
procd_open_instance
procd_set_param command "$FWKNOPD_BIN" --foreground --syslog-enable
procd_set_param respawn
if [ $UCI_ENABLED -eq 1 ]; then
procd_append_param command -c /var/etc/fwknopd.conf
procd_append_param command -a /var/etc/access.conf
fi
procd_append_param command -i "$DEPEND_IFNAME"
procd_set_param netdev "$DEPEND_IFNAME"
procd_close_instance
else
logger -p daemon.info -t "fwknopd[----]" "Postponing start-up of fwknopd, network $NETWORK is not up"
fi
}
service_triggers()
{
procd_add_reload_trigger "fwknopd"
if [ -n "$NETWORK" ] ; then
logger -p daemon.info -t "fwknopd[----]" "Listening for changes on network $NETWORK"
procd_add_reload_interface_trigger "$NETWORK"
fi
}
get_bool()
{
local _tmp="$1"
case "$_tmp" in
1|on|true|yes|enabled) _tmp=1;;
0|off|false|no|disabled) _tmp=0;;
*) _tmp="$2";;
esac
echo -n "$_tmp"
}
generate_configuration()
{
[ -f /tmp/access.conf.tmp ] && rm /tmp/access.conf.tmp
UCI_ENABLED=0
DEPEND_IFNAME=
NETWORK=
local PCAP_INTF=
local USER_CONFIG_PATH=/etc/fwknop/fwknopd.conf
local DEFAULT_UCI_NETWORK=wan
local DEFAULT_FWKNOPD_IFNAME=eth0
config_cb() {
local type="$1"
local name="$2"
if [ "$type" = "global" ]; then
option_cb() {
local option="$1"
local value="$2"
if [ "$option" = "uci_enabled" ] && [ "$(get_bool "$value" 0)" -eq 1 ] ; then
> /var/etc/fwknopd.conf
> /var/etc/access.conf
chmod 600 /var/etc/fwknopd.conf
chmod 600 /var/etc/access.conf
UCI_ENABLED=1
# Forced defaults
# Do not let fwknopd to shut-down when interface goes down,
# control it from the start-up script instead:
# https://bugs.openwrt.org/index.php?do=details&task_id=1481
echo "EXIT_AT_INTF_DOWN n" >> /var/etc/fwknopd.conf
fi
}
elif [ "$type" = "network" ]; then
option_cb() {
local option="$1"
local value="$2"
if [ $UCI_ENABLED -eq 1 ] && [ $option = "network" ]; then
NETWORK="$value"
fi
}
elif [ "$type" = "config" ]; then
option_cb() {
local option="$1"
local value="$2"
if [ $UCI_ENABLED -eq 1 ] && [ $option = "PCAP_INTF" ]; then
PCAP_INTF="$value"
echo "$option $value" >> /var/etc/fwknopd.conf #writing each option to fwknopd.conf
elif [ $UCI_ENABLED -eq 1 ] && [ $option = "EXIT_AT_INTF_DOWN" ]; then
logger -p daemon.warn -t "fwknopd[----]" "Ignoring EXIT_AT_INTF_DOWN option, forced to N (no) to work reliably with procd"
elif [ $UCI_ENABLED -eq 1 ]; then
echo "$option $value" >> /var/etc/fwknopd.conf #writing each option to fwknopd.conf
fi
}
elif [ "$type" = "access" ]; then
if [ -f /tmp/access.conf.tmp ] ; then
cat /tmp/access.conf.tmp >> /var/etc/access.conf
rm /tmp/access.conf.tmp
fi
option_cb() {
local option="$1"
local value="$2"
if [ $UCI_ENABLED -eq 1 ] && [ $option = "SOURCE" ]; then
echo "$option $value" >> /var/etc/access.conf #writing each option to access.conf
fi
if [ $UCI_ENABLED -eq 1 ] && [ $option != "SOURCE" ]; then
echo "$option $value" >> /tmp/access.conf.tmp #writing each option to access.conf
fi
}
else
reset_cb
if [ -z "$type" ]; then
# Finalize reading
if [ -f /tmp/access.conf.tmp ] ; then
cat /tmp/access.conf.tmp >> /var/etc/access.conf
rm /tmp/access.conf.tmp
fi
local key="$(uci_get_state delos-private baptization PwdFwknopd)"
if [ -n "$key" ]; then
echo "KEY $key" >> /var/etc/access.conf
fi
fi
fi
}
if [ -f /etc/config/fwknopd ]; then
config_load fwknopd
fi
if [ $UCI_ENABLED -eq 0 ]; then
if [ -f $USER_CONFIG_PATH ] ; then
# Scan user configuration for PCAP_INTF settings and fallback to fwknopd's default
DEPEND_IFNAME="$( sed -ne '/^\s*PCAP_INTF\s\+/ { s/^\s*PCAP_INTF\s\+//; s/\s\+$//; p; q; }' $USER_CONFIG_PATH )"
if [ -n "$DEPEND_IFNAME" ]; then
logger -p daemon.debug -t "fwknopd[----]" "Found fwknopd.conf configuration, using PCAP_INTF interface $DEPEND_IFNAME"
else
logger -p daemon.info -t "fwknopd[----]" "No PCAP_INTF interface specified in fwknopd.conf, fwknopd's default $DEFAULT_FWKNOPD_IFNAME will be used"
DEPEND_IFNAME="$DEFAULT_FWKNOPD_IFNAME"
fi
else
logger -p daemon.error -t "fwknopd[----]" "No $USER_CONFIG_PATH found, not starting"
exit 1
fi
elif [ $UCI_ENABLED -eq 1 ]; then
if [ -n "$NETWORK" ] && [ -n "$PCAP_INTF" ]; then
logger -p daemon.warn -t "fwknopd[----]" "Specified both network and PCAP_INTF. Ignoring PCAP_INTF"
elif [ -z "$NETWORK" ] && [ -z "$PCAP_INTF" ]; then
# Fallback - compatibility with old script, which used wan interface by default
logger -p daemon.info -t "fwknopd[----]" "Neither network, nor PCAP_INTF interface specified, trying network $DEFAULT_UCI_NETWORK"
NETWORK="$DEFAULT_UCI_NETWORK"
fi
# Resolve network if possible
if [ -n "$NETWORK" ]; then
. /lib/functions/network.sh
network_get_device DEPEND_IFNAME "$NETWORK"
if [ -n "$DEPEND_IFNAME" ]; then
logger -p daemon.debug -t "fwknopd[----]" "Resolved network $NETWORK as interface $DEPEND_IFNAME"
else
logger -p daemon.warn -t "fwknopd[----]" "Cannot find interface for network $NETWORK, probably the network is not up"
fi
elif [ -n "$PCAP_INTF" ]; then
DEPEND_IFNAME="$PCAP_INTF"
logger -p daemon.debug -t "fwknopd[----]" "Using configured PCAP_INTF interface $DEPEND_IFNAME"
fi
fi
}