#!/bin/sh # # Configure routing and miscellaneous network tunables # # $FreeBSD$ # # PROVIDE: routing # REQUIRE: netif ppp stf # KEYWORD: nojailvnet . /etc/rc.subr . /etc/network.subr name="routing" desc="Routing setup" start_cmd="routing_start doall" stop_cmd="routing_stop" extra_commands="options static" static_cmd="routing_start static" options_cmd="routing_start options" ROUTE_CMD="/sbin/route" routing_start() { local _cmd _af _if _a _ret _cmd=$1 _af=$2 _if=$3 _ret=0 case $_if in ""|[Aa][Ll][Ll]|[Aa][Nn][Yy]) _if="" ;; esac case $_af in ""|[Aa][Ll][Ll]|[Aa][Nn][Yy]) for _a in inet inet6; do afexists $_a || continue setroutes $_cmd $_a $_if || _ret=1 done ;; *) if afexists $_af; then setroutes $_cmd $_af $_if || _ret=1 else err 1 "Unsupported address family: $_af." fi ;; esac return $_ret } routing_stop() { local _af _if _a _af=$1 _if=$2 case $_if in ""|[Aa][Ll][Ll]|[Aa][Nn][Yy]) _if="" ;; esac case $_af in ""|[Aa][Ll][Ll]|[Aa][Nn][Yy]) for _a in inet inet6; do afexists $_a || continue eval static_${_a} delete $_if # When $_if is specified, do not flush routes. if ! [ -n "$_if" ]; then eval routing_stop_${_a} fi done ;; *) if afexists $_af; then eval static_${_af} delete $_if # When $_if is specified, do not flush routes. if ! [ -n "$_if" ]; then eval routing_stop_${_af} fi else err 1 "Unsupported address family: $_af." fi ;; esac } setroutes() { local _ret _ret=0 case $1 in static) static_$2 add $3 _ret=$? ;; options) options_$2 ;; doall) static_$2 add $3 _ret=$? options_$2 ;; esac return $_ret } routing_stop_inet() { ${ROUTE_CMD} -n flush -inet } routing_stop_inet6() { local i ${ROUTE_CMD} -n flush -inet6 for i in `list_net_interfaces`; do if ipv6if $i; then ifconfig $i inet6 -defaultif fi done } get_fibmod() { local _fibs _fibs=$((`${SYSCTL_N} net.fibs` - 1)) if [ ${_fibs} -gt 0 ]; then echo "-fib 0-${_fibs}" else echo fi } static_inet() { local _action _if _skip _fibmod _action=$1 _if=$2 _fibmod=`get_fibmod` # Provide loopback route in all routing tables. This has to come # first so that any following routes can be added. static_routes="_loopback ${static_routes}" route__loopback="-inet 127.0.0.1 -iface lo0 ${_fibmod}" # Add default route. case ${defaultrouter} in [Nn][Oo] | '') ;; *) static_routes="${static_routes} _default" route__default="default ${defaultrouter}" ;; esac # Install configured routes. if [ -n "${static_routes}" ]; then for i in ${static_routes}; do _skip=0 if [ -n "$_if" ]; then case $i in *:$_if) ;; *) _skip=1 ;; esac fi if [ $_skip = 0 ]; then route_args=`get_if_var ${i%:*} route_IF` if [ -n "$route_args" ]; then ${ROUTE_CMD} ${_action} ${route_args} else warn "route_${i%:*} not found." fi fi done fi } static_inet6() { local _action _if _skip fibmod allfibs _action=$1 _if=$2 fibmod=`get_fibmod` # Add pre-defined static routes first. ipv6_static_routes="_v4mapped _v4compat ${ipv6_static_routes}" ipv6_static_routes="_lla _llma ${ipv6_static_routes}" ipv6_static_routes="_loopback ${ipv6_static_routes}" # disallow "internal" addresses to appear on the wire ipv6_route__v4mapped="::ffff:0.0.0.0 -prefixlen 96 ::1 -reject ${fibmod}" ipv6_route__v4compat="::0.0.0.0 -prefixlen 96 ::1 -reject ${fibmod}" # Create a loopback route in every fib ipv6_route__loopback="::1 -prefixlen 128 -iface lo0 ${fibmod}" # Disallow link-local unicast packets without outgoing scope # identifiers. However, if you set "ipv6_default_interface", # for the host case, you will allow to omit the identifiers. # Under this configuration, the packets will go to the default # interface. ipv6_route__lla="fe80:: -prefixlen 10 ::1 -reject ${fibmod}" ipv6_route__llma="ff02:: -prefixlen 16 ::1 -reject ${fibmod}" # Add default route. case ${ipv6_defaultrouter} in [Nn][Oo] | '') ;; *) ipv6_static_routes="${ipv6_static_routes} _default" ipv6_route__default="default ${ipv6_defaultrouter}" ;; esac # Install configured routes. if [ -n "${ipv6_static_routes}" ]; then for i in ${ipv6_static_routes}; do _skip=0 if [ -n "$_if" ]; then case $i in *:$_if) ;; *) _skip=1 ;; esac fi if [ $_skip = 0 ]; then ipv6_route_args=`get_if_var ${i%:*} ipv6_route_IF` if [ -n "$ipv6_route_args" ]; then ${ROUTE_CMD} ${_action} \ -inet6 ${ipv6_route_args} else warn "route_${i%:*} not found" fi fi done fi # Install the "default interface" to kernel, which will be used # as the default route when there's no router. # Disable installing the default interface when we act # as router to avoid conflict between the default # router list and the manual configured default route. if checkyesno ipv6_gateway_enable; then return fi case "${ipv6_default_interface}" in [Nn][Oo] | [Nn][Oo][Nn][Ee]) return ;; [Aa][Uu][Tt][Oo] | "") for i in ${ipv6_network_interfaces}; do case $i in [Nn][Oo][Nn][Ee]) return ;; lo0) continue ;; esac laddr=`network6_getladdr $i exclude_tentative` case ${laddr} in '') ;; *) ipv6_default_interface=$i break ;; esac done ;; esac ifconfig ${ipv6_default_interface} inet6 defaultif ${SYSCTL} net.inet6.ip6.use_defaultzone=1 > /dev/null } ropts_init() { if [ -z "${_ropts_initdone}" ]; then echo -n "Additional $1 routing options:" _ropts_initdone=yes fi } options_inet() { _ropts_initdone= if checkyesno icmp_bmcastecho; then ropts_init inet echo -n ' broadcast ping responses=YES' ${SYSCTL} net.inet.icmp.bmcastecho=1 > /dev/null else ${SYSCTL} net.inet.icmp.bmcastecho=0 > /dev/null fi if checkyesno icmp_drop_redirect; then ropts_init inet echo -n ' ignore ICMP redirect=YES' ${SYSCTL} net.inet.icmp.drop_redirect=1 > /dev/null else ${SYSCTL} net.inet.icmp.drop_redirect=0 > /dev/null fi if checkyesno icmp_log_redirect; then ropts_init inet echo -n ' log ICMP redirect=YES' ${SYSCTL} net.inet.icmp.log_redirect=1 > /dev/null else ${SYSCTL} net.inet.icmp.log_redirect=0 > /dev/null fi if checkyesno gateway_enable; then ropts_init inet echo -n ' gateway=YES' ${SYSCTL} net.inet.ip.forwarding=1 > /dev/null else ${SYSCTL} net.inet.ip.forwarding=0 > /dev/null fi if checkyesno forward_sourceroute; then ropts_init inet echo -n ' do source routing=YES' ${SYSCTL} net.inet.ip.sourceroute=1 > /dev/null else ${SYSCTL} net.inet.ip.sourceroute=0 > /dev/null fi if checkyesno accept_sourceroute; then ropts_init inet echo -n ' accept source routing=YES' ${SYSCTL} net.inet.ip.accept_sourceroute=1 > /dev/null else ${SYSCTL} net.inet.ip.accept_sourceroute=0 > /dev/null fi if checkyesno arpproxy_all; then ropts_init inet echo -n ' ARP proxyall=YES' ${SYSCTL} net.link.ether.inet.proxyall=1 > /dev/null else ${SYSCTL} net.link.ether.inet.proxyall=0 > /dev/null fi [ -n "${_ropts_initdone}" ] && echo '.' } options_inet6() { _ropts_initdone= if checkyesno ipv6_gateway_enable; then ropts_init inet6 echo -n ' gateway=YES' ${SYSCTL} net.inet6.ip6.forwarding=1 > /dev/null else ${SYSCTL} net.inet6.ip6.forwarding=0 > /dev/null fi [ -n "${_ropts_initdone}" ] && echo '.' } load_rc_config $name run_rc_command "$@"