routing revision 272863
1#!/bin/sh 2# 3# Configure routing and miscellaneous network tunables 4# 5# $FreeBSD: stable/10/etc/rc.d/routing 272863 2014-10-09 23:39:17Z hrs $ 6# 7 8# PROVIDE: routing 9# REQUIRE: faith netif ppp stf 10# KEYWORD: nojailvnet 11 12. /etc/rc.subr 13. /etc/network.subr 14 15name="routing" 16start_cmd="routing_start doall" 17stop_cmd="routing_stop" 18extra_commands="options static" 19static_cmd="routing_start static" 20options_cmd="routing_start options" 21 22ROUTE_CMD="/sbin/route" 23 24routing_start() 25{ 26 local _cmd _af _if _a _ret 27 _cmd=$1 28 _af=$2 29 _if=$3 30 _ret=0 31 32 case $_if in 33 ""|[Aa][Ll][Ll]|[Aa][Nn][Yy]) _if="" ;; 34 esac 35 36 case $_af in 37 ""|[Aa][Ll][Ll]|[Aa][Nn][Yy]) 38 for _a in inet inet6 atm; do 39 afexists $_a || continue 40 setroutes $_cmd $_a $_if || _ret=1 41 done 42 ;; 43 *) 44 if afexists $_af; then 45 setroutes $_cmd $_af $_if || _ret=1 46 else 47 err 1 "Unsupported address family: $_af." 48 fi 49 ;; 50 esac 51 52 return $_ret 53} 54 55routing_stop() 56{ 57 local _af _if _a 58 _af=$1 59 _if=$2 60 61 case $_if in 62 ""|[Aa][Ll][Ll]|[Aa][Nn][Yy]) _if="" ;; 63 esac 64 65 case $_af in 66 ""|[Aa][Ll][Ll]|[Aa][Nn][Yy]) 67 for _a in inet inet6 ipx atm; do 68 afexists $_a || continue 69 eval static_${_a} delete $_if 70 # When $_if is specified, do not flush routes. 71 if ! [ -n "$_if" ]; then 72 eval routing_stop_${_a} 73 fi 74 done 75 ;; 76 *) 77 if afexists $_af; then 78 eval static_${_af} delete $_if 79 # When $_if is specified, do not flush routes. 80 if ! [ -n "$_if" ]; then 81 eval routing_stop_${_af} 82 fi 83 else 84 err 1 "Unsupported address family: $_af." 85 fi 86 ;; 87 esac 88} 89 90setroutes() 91{ 92 case $1 in 93 static) 94 static_$2 add $3 95 ;; 96 options) 97 options_$2 98 ;; 99 doall) 100 static_$2 add $3 101 options_$2 102 ;; 103 esac 104} 105 106routing_stop_inet() 107{ 108 ${ROUTE_CMD} -n flush -inet 109} 110 111routing_stop_inet6() 112{ 113 local i 114 115 ${ROUTE_CMD} -n flush -inet6 116 for i in `list_net_interfaces`; do 117 if ipv6if $i; then 118 ifconfig $i inet6 -defaultif 119 fi 120 done 121} 122 123routing_stop_atm() 124{ 125 return 0 126} 127 128routing_stop_ipx() 129{ 130 return 0 131} 132 133static_inet() 134{ 135 local _action _if _skip 136 _action=$1 137 _if=$2 138 139 # Add default route. 140 case ${defaultrouter} in 141 [Nn][Oo] | '') 142 ;; 143 *) 144 static_routes="${static_routes} _default" 145 route__default="default ${defaultrouter}" 146 ;; 147 esac 148 149 # Install configured routes. 150 if [ -n "${static_routes}" ]; then 151 for i in ${static_routes}; do 152 _skip=0 153 if [ -n "$_if" ]; then 154 case $i in 155 *:$_if) ;; 156 *) _skip=1 ;; 157 esac 158 fi 159 if [ $_skip = 0 ]; then 160 route_args=`get_if_var ${i%:*} route_IF` 161 if [ -n "$route_args" ]; then 162 ${ROUTE_CMD} ${_action} ${route_args} 163 else 164 warn "route_${i%:*} not found." 165 fi 166 fi 167 done 168 fi 169} 170 171static_inet6() 172{ 173 local _action _if _skip fibmod fibs 174 _action=$1 175 _if=$2 176 177 # get the number of FIBs supported. 178 fibs=$((`${SYSCTL_N} net.fibs` - 1)) 179 if [ "$fibs" -gt 0 ]; then 180 fibmod="-fib 0-$fibs" 181 else 182 fibmod= 183 fi 184 185 # Add pre-defined static routes first. 186 ipv6_static_routes="_v4mapped _v4compat ${ipv6_static_routes}" 187 ipv6_static_routes="_lla _llma ${ipv6_static_routes}" 188 189 # disallow "internal" addresses to appear on the wire 190 ipv6_route__v4mapped="::ffff:0.0.0.0 -prefixlen 96 ::1 -reject ${fibmod}" 191 ipv6_route__v4compat="::0.0.0.0 -prefixlen 96 ::1 -reject ${fibmod}" 192 193 # Disallow link-local unicast packets without outgoing scope 194 # identifiers. However, if you set "ipv6_default_interface", 195 # for the host case, you will allow to omit the identifiers. 196 # Under this configuration, the packets will go to the default 197 # interface. 198 ipv6_route__lla="fe80:: -prefixlen 10 ::1 -reject ${fibmod}" 199 ipv6_route__llma="ff02:: -prefixlen 16 ::1 -reject ${fibmod}" 200 201 # Add default route. 202 case ${ipv6_defaultrouter} in 203 [Nn][Oo] | '') 204 ;; 205 *) 206 ipv6_static_routes="${ipv6_static_routes} _default" 207 ipv6_route__default="default ${ipv6_defaultrouter}" 208 ;; 209 esac 210 211 # Install configured routes. 212 if [ -n "${ipv6_static_routes}" ]; then 213 for i in ${ipv6_static_routes}; do 214 _skip=0 215 if [ -n "$_if" ]; then 216 case $i in 217 *:$_if) ;; 218 *) _skip=1 ;; 219 esac 220 fi 221 if [ $_skip = 0 ]; then 222 ipv6_route_args=`get_if_var ${i%:*} ipv6_route_IF` 223 if [ -n "$ipv6_route_args" ]; then 224 ${ROUTE_CMD} ${_action} \ 225 -inet6 ${ipv6_route_args} 226 else 227 warn "route_${i%:*} not found" 228 fi 229 fi 230 done 231 fi 232 233 # Install the "default interface" to kernel, which will be used 234 # as the default route when there's no router. 235 236 # Disable installing the default interface when we act 237 # as router to avoid conflict between the default 238 # router list and the manual configured default route. 239 if checkyesno ipv6_gateway_enable; then 240 return 241 fi 242 243 case "${ipv6_default_interface}" in 244 [Nn][Oo] | [Nn][Oo][Nn][Ee]) 245 return 246 ;; 247 [Aa][Uu][Tt][Oo] | "") 248 for i in ${ipv6_network_interfaces}; do 249 case $i in 250 [Nn][Oo][Nn][Ee]) 251 return 252 ;; 253 lo0|faith[0-9]*) 254 continue 255 ;; 256 esac 257 laddr=`network6_getladdr $i exclude_tentative` 258 case ${laddr} in 259 '') 260 ;; 261 *) 262 ipv6_default_interface=$i 263 break 264 ;; 265 esac 266 done 267 ;; 268 esac 269 270 ifconfig ${ipv6_default_interface} inet6 defaultif 271 sysctl net.inet6.ip6.use_defaultzone=1 272} 273 274static_atm() 275{ 276 local _action i route_args 277 _action=$1 278 279 if [ -n "${natm_static_routes}" ]; then 280 for i in ${natm_static_routes}; do 281 route_args=`get_if_var $i route_IF` 282 if [ -n "$route_args" ]; then 283 atmconfig natm ${_action} ${route_args} 284 else 285 warn "route_${i} not found." 286 fi 287 done 288 fi 289} 290 291static_ipx() 292{ 293 : 294} 295 296ropts_init() 297{ 298 if [ -z "${_ropts_initdone}" ]; then 299 echo -n "Additional $1 routing options:" 300 _ropts_initdone=yes 301 fi 302} 303 304options_inet() 305{ 306 _ropts_initdone= 307 if checkyesno icmp_bmcastecho; then 308 ropts_init inet 309 echo -n ' broadcast ping responses=YES' 310 ${SYSCTL} net.inet.icmp.bmcastecho=1 > /dev/null 311 else 312 ${SYSCTL} net.inet.icmp.bmcastecho=0 > /dev/null 313 fi 314 315 if checkyesno icmp_drop_redirect; then 316 ropts_init inet 317 echo -n ' ignore ICMP redirect=YES' 318 ${SYSCTL} net.inet.icmp.drop_redirect=1 > /dev/null 319 else 320 ${SYSCTL} net.inet.icmp.drop_redirect=0 > /dev/null 321 fi 322 323 if checkyesno icmp_log_redirect; then 324 ropts_init inet 325 echo -n ' log ICMP redirect=YES' 326 ${SYSCTL} net.inet.icmp.log_redirect=1 > /dev/null 327 else 328 ${SYSCTL} net.inet.icmp.log_redirect=0 > /dev/null 329 fi 330 331 if checkyesno gateway_enable; then 332 ropts_init inet 333 echo -n ' gateway=YES' 334 ${SYSCTL} net.inet.ip.forwarding=1 > /dev/null 335 else 336 ${SYSCTL} net.inet.ip.forwarding=0 > /dev/null 337 fi 338 339 if checkyesno forward_sourceroute; then 340 ropts_init inet 341 echo -n ' do source routing=YES' 342 ${SYSCTL} net.inet.ip.sourceroute=1 > /dev/null 343 else 344 ${SYSCTL} net.inet.ip.sourceroute=0 > /dev/null 345 fi 346 347 if checkyesno accept_sourceroute; then 348 ropts_init inet 349 echo -n ' accept source routing=YES' 350 ${SYSCTL} net.inet.ip.accept_sourceroute=1 > /dev/null 351 else 352 ${SYSCTL} net.inet.ip.accept_sourceroute=0 > /dev/null 353 fi 354 355 if checkyesno arpproxy_all; then 356 ropts_init inet 357 echo -n ' ARP proxyall=YES' 358 ${SYSCTL} net.link.ether.inet.proxyall=1 > /dev/null 359 else 360 ${SYSCTL} net.link.ether.inet.proxyall=0 > /dev/null 361 fi 362 363 [ -n "${_ropts_initdone}" ] && echo '.' 364} 365 366options_inet6() 367{ 368 _ropts_initdone= 369 370 if checkyesno ipv6_gateway_enable; then 371 ropts_init inet6 372 echo -n ' gateway=YES' 373 ${SYSCTL} net.inet6.ip6.forwarding=1 > /dev/null 374 else 375 ${SYSCTL} net.inet6.ip6.forwarding=0 > /dev/null 376 fi 377 378 [ -n "${_ropts_initdone}" ] && echo '.' 379} 380 381options_atm() 382{ 383 _ropts_initdone= 384 385 [ -n "${_ropts_initdone}" ] && echo '.' 386} 387 388options_ipx() 389{ 390 _ropts_initdone= 391 392 if checkyesno ipxgateway_enable; then 393 ropts_init ipx 394 echo -n ' gateway=YES' 395 ${SYSCTL} net.ipx.ipx.ipxforwarding=1 > /dev/null 396 else 397 ${SYSCTL} net.ipx.ipx.ipxforwarding=0 > /dev/null 398 fi 399 400 [ -n "${_ropts_initdone}" ] && echo '.' 401} 402 403load_rc_config $name 404run_rc_command "$@" 405