+++ /dev/null
-# Copyright (C) 2009-2012 OpenWrt.org
-
-fw__uci_state_add() {
- local var="$1"
- local item="$2"
-
- local val="$(uci_get_state firewall core $var)"
- local e1; for e1 in $item; do
- local e2; for e2 in $val; do
- [ "$e1" = "$e2" ] && e1=""
- done
- val="${val:+$val${e1:+ }}$e1"
- done
-
- uci_toggle_state firewall core $var "$val"
-}
-
-fw__uci_state_del() {
- local var="$1"
- local item="$2"
-
- local rest=""
- local val="$(uci_get_state firewall core $var)"
- local e1; for e1 in $val; do
- local e2; for e2 in $item; do
- [ "$e1" = "$e2" ] && e1=""
- done
- rest="${rest:+$rest${e1:+ }}$e1"
- done
-
- uci_toggle_state firewall core $var "$rest"
-}
-
-fw_configure_interface() {
- local iface=$1
- local action=$2
- local ifname=$3
- local aliasnet=$4
-
- [ "$action" == "add" ] && {
- local status=$(uci_get_state network "$iface" up 0)
- [ "$status" == 1 ] || [ -n "$aliasnet" ] || return 0
- }
-
- [ -n "$ifname" ] || {
- ifname=$(uci_get_state network "$iface" ifname)
- ifname="${ifname%%:*}"
- [ -z "$ifname" ] && return 0
- }
-
- [ "$ifname" == "lo" ] && return 0
-
- fw_callback pre interface
-
- fw__do_rules() {
- local action=$1
- local zone=$2
- local chain=zone_${zone}
- local ifname=$3
- local subnet=$4
-
- local inet onet mode
- fw_get_family_mode mode x $zone i
-
- case "$mode/$subnet" in
- # Zone supports v6 only or dual, need v6
- G6/*:*|i/*:*)
- inet="-s $subnet -d ::/0"
- onet="-s ::/0 -d $subnet"
- mode=6
- ;;
-
- # Zone supports v4 only or dual, need v4
- G4/*.*.*.*|i/*.*.*.*)
- inet="-s $subnet -d 0.0.0.0/0"
- onet="-s 0.0.0.0/0 -d $subnet"
- mode=4
- ;;
-
- # Need v6 while zone is v4
- */*:*) fw_log info "zone $zone does not support IPv6 address family, skipping"; return ;;
-
- # Need v4 while zone is v6
- */*.*) fw_log info "zone $zone does not support IPv4 address family, skipping"; return ;;
-
- # Strip prefix
- *) mode="${mode#G}" ;;
- esac
-
- lock /var/run/firewall-interface.lock
-
- fw $action $mode f ${chain}_ACCEPT ACCEPT $ { -o "$ifname" $onet }
- fw $action $mode f ${chain}_ACCEPT ACCEPT $ { -i "$ifname" $inet }
- fw $action $mode f ${chain}_DROP DROP $ { -o "$ifname" $onet }
- fw $action $mode f ${chain}_DROP DROP $ { -i "$ifname" $inet }
- fw $action $mode f ${chain}_REJECT reject $ { -o "$ifname" $onet }
- fw $action $mode f ${chain}_REJECT reject $ { -i "$ifname" $inet }
-
- [ "$(uci_get_state firewall core "${zone}_tcpmss")" == 1 ] && \
- fw $action $mode m ${chain}_MSSFIX TCPMSS $ \
- { -o "$ifname" -p tcp --tcp-flags SYN,RST SYN --clamp-mss-to-pmtu $onet }
-
- fw $action $mode f input ${chain} $ { -i "$ifname" $inet }
- fw $action $mode f forward ${chain}_forward $ { -i "$ifname" $inet }
- fw $action $mode n PREROUTING ${chain}_prerouting $ { -i "$ifname" $inet }
- fw $action $mode r PREROUTING ${chain}_notrack $ { -i "$ifname" $inet }
- fw $action $mode n POSTROUTING ${chain}_nat $ { -o "$ifname" $onet }
-
- lock -u /var/run/firewall-interface.lock
- }
-
- local old_zones old_ifname old_subnets
- config_get old_zones core "${iface}_zone"
- [ -n "$old_zones" ] && {
- config_get old_ifname core "${iface}_ifname"
- config_get old_subnets core "${iface}_subnets"
-
- local z
- for z in $old_zones; do
- local n
- for n in ${old_subnets:-""}; do
- fw_log info "removing $iface ($old_ifname${n:+ alias $n}) from zone $z"
- fw__do_rules del $z $old_ifname $n
- done
-
- [ -n "$old_subnets" ] || {
- fw__uci_state_del "${z}_networks" "$iface"
- env -i ACTION=remove ZONE="$z" INTERFACE="$iface" DEVICE="$ifname" /sbin/hotplug-call firewall
- }
- done
-
- local old_aliases
- config_get old_aliases core "${iface}_aliases"
-
- local a
- for a in $old_aliases; do
- fw_configure_interface "$a" del "$old_ifname"
- done
-
- uci_revert_state firewall core "${iface}_zone"
- uci_revert_state firewall core "${iface}_ifname"
- uci_revert_state firewall core "${iface}_subnets"
- uci_revert_state firewall core "${iface}_aliases"
- }
-
- [ "$action" == del ] && return
-
- [ -z "$aliasnet" ] && {
- local aliases
- config_get aliases "$iface" aliases
-
- local a
- for a in $aliases; do
- local ipaddr netmask ip6addr
- config_get ipaddr "$a" ipaddr
- config_get netmask "$a" netmask
- config_get ip6addr "$a" ip6addr
-
- [ -n "$ipaddr" ] && fw_configure_interface "$a" add "" "$ipaddr${netmask:+/$netmask}"
- [ -n "$ip6addr" ] && fw_configure_interface "$a" add "" "$ip6addr"
- done
-
- fw_sysctl_interface $ifname
- fw_callback post interface
-
- uci_toggle_state firewall core "${iface}_aliases" "$aliases"
- } || {
- local subnets=
- config_get subnets core "${iface}_subnets"
- append subnets "$aliasnet"
-
- config_set core "${iface}_subnets" "$subnets"
- uci_toggle_state firewall core "${iface}_subnets" "$subnets"
- }
-
- local new_zones=
- load_zone() {
- fw_config_get_zone "$1"
- list_contains zone_network "$iface" || return
-
- fw_log info "adding $iface ($ifname${aliasnet:+ alias $aliasnet}) to zone $zone_name"
- fw__do_rules add ${zone_name} "$ifname" "$aliasnet"
- append new_zones $zone_name
-
- [ -n "$aliasnet" ] || {
- fw__uci_state_add "${zone_name}_networks" "${zone_network}"
- env -i ACTION=add ZONE="$zone_name" INTERFACE="$iface" DEVICE="$ifname" /sbin/hotplug-call firewall
- }
- }
- config_foreach load_zone zone
-
- uci_toggle_state firewall core "${iface}_zone" "$new_zones"
- uci_toggle_state firewall core "${iface}_ifname" "$ifname"
-}
-
-fw_sysctl_interface() {
- local ifname=$1
- {
- sysctl -w net.ipv4.conf.${ifname}.accept_redirects=$FW_ACCEPT_REDIRECTS
- sysctl -w net.ipv6.conf.${ifname}.accept_redirects=$FW_ACCEPT_REDIRECTS
- sysctl -w net.ipv4.conf.${ifname}.accept_source_route=$FW_ACCEPT_SRC_ROUTE
- sysctl -w net.ipv6.conf.${ifname}.accept_source_route=$FW_ACCEPT_SRC_ROUTE
- } >/dev/null 2>/dev/null
-}
-
projects / openwrt / staging / florian.git / blobdiff