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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
. "${IPKG_INSTROOT}/lib/functions/network.sh"
FWKNOPD_BIN=/usr/sbin/fwknopd
FWKNOPD_CFGDIR=/var/etc/fwknop
start_service()
{
generate_configuration
if [ -n "${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 "${FWKNOPD_CFGDIR}/fwknopd.conf"
procd_append_param command -a "${FWKNOPD_CFGDIR}/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
}
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=
network_get_device DEFAULT_FWKNOPD_IFNAME "${DEFAULT_UCI_NETWORK}"
config_cb() {
local type="${1}"
local name="${2}"
if [ "${type}" = "global" ]; then
option_cb() {
local option="${1}"
local value="${2}"
if [ "${option}" = "uci_enabled" ] && [ "$(get_bool "${value}" 0)" -eq 1 ] ; then
mkdir -p "${FWKNOPD_CFGDIR}"
> "${FWKNOPD_CFGDIR}/fwknopd.conf"
> "${FWKNOPD_CFGDIR}/access.conf"
chmod 600 "${FWKNOPD_CFGDIR}/fwknopd.conf"
chmod 600 "${FWKNOPD_CFGDIR}/access.conf"
UCI_ENABLED=1
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 ]; then
if [ "${option}" = "PCAP_INTF" ]; then
PCAP_INTF="${value}"
fi
echo "${option} ${value}" >> "${FWKNOPD_CFGDIR}/fwknopd.conf" #writing each option to fwknopd.conf
fi
}
elif [ "${type}" = "access" ]; then
if [ -f /tmp/access.conf.tmp ] ; then
cat /tmp/access.conf.tmp >> "${FWKNOPD_CFGDIR}/access.conf"
rm /tmp/access.conf.tmp
fi
option_cb() {
local option="${1}"
local value="${2}"
if [ "${UCI_ENABLED}" -eq 1 ]; then
if [ "${option}" = "SOURCE" ]; then
echo "${option} ${value}" >> "${FWKNOPD_CFGDIR}/access.conf" #writing each option to access.conf
else
echo "${option} ${value}" >> /tmp/access.conf.tmp #writing each option to access.conf
fi
fi
}
else
reset_cb
if [ -z "${type}" ]; then
# Finalize reading
if [ -f /tmp/access.conf.tmp ] ; then
cat /tmp/access.conf.tmp >> "${FWKNOPD_CFGDIR}/access.conf"
rm /tmp/access.conf.tmp
fi
fi
fi
}
if [ -f /etc/config/fwknopd ]; then
config_load fwknopd
fi
if [ "${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[$$]" "Neither network, nor PCAP_INTF interface specified, trying network ${DEFAULT_UCI_NETWORK}"
NETWORK="${DEFAULT_UCI_NETWORK}"
fi
# Resolve network if possible
if [ -n "${NETWORK}" ]; then
network_get_device DEPEND_IFNAME "${NETWORK}"
if [ -n "${DEPEND_IFNAME}" ]; then
logger -p daemon.debug -t "fwknopd[$$]" "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
}