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160 lines
2.7 KiB
Bash
160 lines
2.7 KiB
Bash
# Copyright (C) 2009-2010 OpenWrt.org
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FW_LIBDIR=${FW_LIBDIR:-/lib/firewall}
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. $FW_LIBDIR/fw.sh
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include /lib/network
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fw_start() {
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fw_init
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FW_DEFAULTS_APPLIED=
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fw_is_loaded && {
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echo "firewall already loaded" >&2
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exit 1
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}
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uci_set_state firewall core "" firewall_state
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fw_clear DROP
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fw_callback pre core
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echo "Loading defaults"
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fw_config_once fw_load_defaults defaults
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echo "Loading zones"
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config_foreach fw_load_zone zone
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echo "Loading forwardings"
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config_foreach fw_load_forwarding forwarding
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echo "Loading rules"
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config_foreach fw_load_rule rule
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echo "Loading redirects"
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config_foreach fw_load_redirect redirect
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echo "Loading includes"
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config_foreach fw_load_include include
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[ -z "$FW_NOTRACK_DISABLED" ] && {
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echo "Optimizing conntrack"
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config_foreach fw_load_notrack_zone zone
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}
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echo "Loading interfaces"
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config_foreach fw_configure_interface interface add
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fw_callback post core
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uci_set_state firewall core zones "$FW_ZONES"
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uci_set_state firewall core loaded 1
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}
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fw_stop() {
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fw_init
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fw_callback pre stop
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local z n i
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config_get z core zones
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for z in $z; do
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config_get n core "${z}_networks"
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for n in $n; do
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config_get i core "${n}_ifname"
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[ -n "$i" ] && env -i ACTION=remove ZONE="$z" \
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INTERFACE="$n" DEVICE="$i" /sbin/hotplug-call firewall
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done
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config_get i core "${z}_tcpmss"
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[ "$i" == 1 ] && {
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fw del i m FORWARD zone_${z}_MSSFIX
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fw del i m zone_${z}_MSSFIX
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}
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done
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fw_clear ACCEPT
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fw_callback post stop
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uci_revert_state firewall
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config_clear
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local h
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for h in $FW_HOOKS; do unset $h; done
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unset FW_HOOKS
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unset FW_INITIALIZED
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}
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fw_restart() {
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fw_stop
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fw_start
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}
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fw_reload() {
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fw_restart
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}
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fw_is_loaded() {
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local bool=$(uci_get_state firewall.core.loaded)
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return $((! ${bool:-0}))
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}
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fw_die() {
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echo "Error:" "$@" >&2
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fw_log error "$@"
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fw_stop
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exit 1
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}
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fw_log() {
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local level="$1"
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[ -n "$2" ] && shift || level=notice
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[ "$level" != error ] || echo "Error: $@" >&2
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logger -t firewall -p user.$level "$@"
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}
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fw_init() {
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[ -z "$FW_INITIALIZED" ] || return 0
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. $FW_LIBDIR/config.sh
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scan_interfaces
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fw_config_append firewall
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local hooks="core stop defaults zone notrack synflood"
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local file lib hk pp
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for file in $FW_LIBDIR/core_*.sh; do
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. $file
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hk=$(basename $file .sh)
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hk=${hk#core_}
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append hooks $hk
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done
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for file in $FW_LIBDIR/*.sh; do
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lib=$(basename $file .sh)
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lib=${lib##[0-9][0-9]_}
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case $lib in
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core*|fw|config|uci_firewall) continue ;;
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esac
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. $file
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for hk in $hooks; do
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for pp in pre post; do
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type ${lib}_${pp}_${hk}_cb >/dev/null && {
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append FW_CB_${pp}_${hk} ${lib}
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append FW_HOOKS FW_CB_${pp}_${hk}
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}
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done
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done
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done
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fw_callback post init
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FW_INITIALIZED=1
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return 0
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}
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