1#!/bin/sh 2# 3# Configure routing and miscellaneous network tunables 4# 5# 6 7# PROVIDE: routing 8# REQUIRE: netif ppp stf 9# KEYWORD: nojailvnet 10 11. /etc/rc.subr 12. /etc/network.subr 13 14name="routing" 15desc="Routing setup" 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; 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; 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 local _ret 93 _ret=0 94 case $1 in 95 static) 96 static_$2 add $3 97 _ret=$? 98 ;; 99 options) 100 options_$2 101 ;; 102 doall) 103 static_$2 add $3 104 _ret=$? 105 options_$2 106 ;; 107 esac 108 return $_ret 109} 110 111routing_stop_inet() 112{ 113 ${ROUTE_CMD} -n flush -inet 114} 115 116routing_stop_inet6() 117{ 118 local i 119 120 ${ROUTE_CMD} -n flush -inet6 121 for i in `list_net_interfaces`; do 122 if ipv6if $i; then 123 ifconfig $i inet6 -defaultif 124 fi 125 done 126} 127 128get_fibmod() 129{ 130 local _fibs 131 132 _fibs=$((`${SYSCTL_N} net.fibs` - 1)) 133 if [ ${_fibs} -gt 0 ]; then 134 echo "-fib 0-${_fibs}" 135 else 136 echo 137 fi 138} 139 140static_inet() 141{ 142 local _action _if _skip _fibmod _fibs 143 _action=$1 144 _if=$2 145 146 _fibmod=`get_fibmod` 147 _fibs=$((`${SYSCTL_N} net.fibs` - 1)) 148 149 # Provide loopback route in all routing tables. This has to come 150 # first so that any following routes can be added. 151 static_routes="_loopback ${static_routes}" 152 route__loopback="-inet 127.0.0.1 -iface lo0 ${_fibmod}" 153 154 # Add default route. 155 case ${defaultrouter} in 156 [Nn][Oo] | '') 157 ;; 158 *) 159 static_routes="${static_routes} _default" 160 route__default="default ${defaultrouter}" 161 ;; 162 esac 163 164 # Add default routes for fibs 165 if [ ${_fibs} -gt 0 ]; then 166 for _fibnum in `jot ${_fibs}` ; do 167 eval _fib_gw=\${defaultrouter_fib${_fibnum}} 168 case ${_fib_gw} in 169 [Nn][Oo] | '') 170 ;; 171 *) 172 static_routes="${static_routes} _default_fib${_fibnum}" 173 eval route__default_fib${_fibnum}="'default ${_fib_gw} -fib ${_fibnum}'" 174 ;; 175 esac 176 done 177 fi 178 179 180 # Install configured routes. 181 if [ -n "${static_routes}" ]; then 182 for i in ${static_routes}; do 183 _skip=0 184 if [ -n "$_if" ]; then 185 case $i in 186 *:$_if) ;; 187 *) _skip=1 ;; 188 esac 189 fi 190 if [ $_skip = 0 ]; then 191 route_args=`get_if_var ${i%:*} route_IF` 192 if [ -n "$route_args" ]; then 193 ${ROUTE_CMD} ${_action} ${route_args} 194 else 195 warn "route_${i%:*} not found." 196 fi 197 fi 198 done 199 fi 200} 201 202static_inet6() 203{ 204 local _action _if _skip fibmod _fibs 205 _action=$1 206 _if=$2 207 208 fibmod=`get_fibmod` 209 _fibs=$((`${SYSCTL_N} net.fibs` - 1)) 210 211 # Add pre-defined static routes first. 212 ipv6_static_routes="_v4mapped _v4compat ${ipv6_static_routes}" 213 ipv6_static_routes="_lla _llma ${ipv6_static_routes}" 214 ipv6_static_routes="_loopback ${ipv6_static_routes}" 215 216 # disallow "internal" addresses to appear on the wire 217 ipv6_route__v4mapped="::ffff:0.0.0.0 -prefixlen 96 ::1 -reject ${fibmod}" 218 ipv6_route__v4compat="::0.0.0.0 -prefixlen 96 ::1 -reject ${fibmod}" 219 220 # Create a loopback route in every fib 221 ipv6_route__loopback="::1 -prefixlen 128 -iface lo0 ${fibmod}" 222 223 # Disallow link-local unicast packets without outgoing scope 224 # identifiers. However, if you set "ipv6_default_interface", 225 # for the host case, you will allow to omit the identifiers. 226 # Under this configuration, the packets will go to the default 227 # interface. 228 ipv6_route__lla="fe80:: -prefixlen 10 ::1 -reject ${fibmod}" 229 ipv6_route__llma="ff02:: -prefixlen 16 ::1 -reject ${fibmod}" 230 231 # Add default route. 232 case ${ipv6_defaultrouter} in 233 [Nn][Oo] | '') 234 ;; 235 *) 236 ipv6_static_routes="${ipv6_static_routes} _default" 237 ipv6_route__default="default ${ipv6_defaultrouter}" 238 ;; 239 esac 240 241 # Add default routes for fibs 242 if [ ${_fibs} -gt 0 ]; then 243 for _fibnum in `jot ${_fibs}` ; do 244 eval _fib_gw=\${ipv6_defaultrouter_fib${_fibnum}} 245 case ${_fib_gw} in 246 [Nn][Oo] | '') 247 ;; 248 *) 249 ipv6_static_routes="${ipv6_static_routes} _default_fib${_fibnum}" 250 eval ipv6_route__default_fib${_fibnum}="'default ${_fib_gw} -fib ${_fibnum}'" 251 ;; 252 esac 253 done 254 fi 255 256 257 # Install configured routes. 258 if [ -n "${ipv6_static_routes}" ]; then 259 for i in ${ipv6_static_routes}; do 260 _skip=0 261 if [ -n "$_if" ]; then 262 case $i in 263 *:$_if) ;; 264 *) _skip=1 ;; 265 esac 266 fi 267 if [ $_skip = 0 ]; then 268 ipv6_route_args=`get_if_var ${i%:*} ipv6_route_IF` 269 if [ -n "$ipv6_route_args" ]; then 270 ${ROUTE_CMD} ${_action} \ 271 -inet6 ${ipv6_route_args} 272 else 273 warn "route_${i%:*} not found" 274 fi 275 fi 276 done 277 fi 278 279 # Install the "default interface" to kernel, which will be used 280 # as the default route when there's no router. 281 282 # Disable installing the default interface when we act 283 # as router to avoid conflict between the default 284 # router list and the manual configured default route. 285 if checkyesno ipv6_gateway_enable; then 286 return 287 fi 288 289 case "${ipv6_default_interface}" in 290 [Nn][Oo] | [Nn][Oo][Nn][Ee]) 291 return 292 ;; 293 [Aa][Uu][Tt][Oo] | "") 294 for i in ${ipv6_network_interfaces}; do 295 case $i in 296 [Nn][Oo][Nn][Ee]) 297 return 298 ;; 299 lo0) 300 continue 301 ;; 302 esac 303 laddr=`network6_getladdr $i exclude_tentative` 304 case ${laddr} in 305 '') 306 ;; 307 *) 308 ipv6_default_interface=$i 309 break 310 ;; 311 esac 312 done 313 ;; 314 esac 315 316 ifconfig ${ipv6_default_interface} inet6 defaultif 317 ${SYSCTL} net.inet6.ip6.use_defaultzone=1 > /dev/null 318} 319 320ropts_init() 321{ 322 if [ -z "${_ropts_initdone}" ]; then 323 echo -n "Additional $1 routing options:" 324 _ropts_initdone=yes 325 fi 326} 327 328_check_dynamicrouting() 329{ 330 local skip file name rcvar 331 332 # copied from /etc/rc 333 skip="-s nostart" 334 if [ `/sbin/sysctl -n security.jail.jailed` -eq 1 ]; then 335 skip="$skip -s nojail" 336 fi 337 [ -n "$local_startup" ] && find_local_scripts_new 338 [ -n "$system_rc" ] && find_system_scripts 339 340 for file in $( rcorder ${skip} ${system_rc} ${local_rc} 2>/dev/null | 341 xargs grep -lE '^# PROVIDE:.*\<dynamicrouting\>' ); do 342 (set -- enabled; . $file) && return 0; 343 done 344 345 return 1 346} 347 348options_inet() 349{ 350 local _icmp_drop_redirect 351 352 _ropts_initdone= 353 if checkyesno icmp_bmcastecho; then 354 ropts_init inet 355 echo -n ' broadcast ping responses=YES' 356 ${SYSCTL} net.inet.icmp.bmcastecho=1 > /dev/null 357 else 358 ${SYSCTL} net.inet.icmp.bmcastecho=0 > /dev/null 359 fi 360 361 _icmp_drop_redirect="${icmp_drop_redirect}" 362 case "${_icmp_drop_redirect}" in 363 [Aa][Uu][Tt][Oo] | "") 364 if _check_dynamicrouting; then 365 _icmp_drop_redirect="yes" 366 else 367 _icmp_drop_redirect="no" 368 fi 369 ;; 370 esac 371 if checkyesno _icmp_drop_redirect; then 372 ropts_init inet 373 echo -n ' ignore ICMP redirect=YES' 374 ${SYSCTL} net.inet.icmp.drop_redirect=1 > /dev/null 375 else 376 ${SYSCTL} net.inet.icmp.drop_redirect=0 > /dev/null 377 fi 378 379 if checkyesno icmp_log_redirect; then 380 ropts_init inet 381 echo -n ' log ICMP redirect=YES' 382 ${SYSCTL} net.inet.icmp.log_redirect=1 > /dev/null 383 else 384 ${SYSCTL} net.inet.icmp.log_redirect=0 > /dev/null 385 fi 386 387 if checkyesno gateway_enable; then 388 ropts_init inet 389 echo -n ' gateway=YES' 390 ${SYSCTL} net.inet.ip.forwarding=1 > /dev/null 391 else 392 ${SYSCTL} net.inet.ip.forwarding=0 > /dev/null 393 fi 394 395 if checkyesno forward_sourceroute; then 396 ropts_init inet 397 echo -n ' do source routing=YES' 398 ${SYSCTL} net.inet.ip.sourceroute=1 > /dev/null 399 else 400 ${SYSCTL} net.inet.ip.sourceroute=0 > /dev/null 401 fi 402 403 if checkyesno accept_sourceroute; then 404 ropts_init inet 405 echo -n ' accept source routing=YES' 406 ${SYSCTL} net.inet.ip.accept_sourceroute=1 > /dev/null 407 else 408 ${SYSCTL} net.inet.ip.accept_sourceroute=0 > /dev/null 409 fi 410 411 if checkyesno arpproxy_all; then 412 ropts_init inet 413 echo -n ' ARP proxyall=YES' 414 ${SYSCTL} net.link.ether.inet.proxyall=1 > /dev/null 415 else 416 ${SYSCTL} net.link.ether.inet.proxyall=0 > /dev/null 417 fi 418 419 [ -n "${_ropts_initdone}" ] && echo '.' 420} 421 422options_inet6() 423{ 424 _ropts_initdone= 425 426 if checkyesno ipv6_gateway_enable; then 427 ropts_init inet6 428 echo -n ' gateway=YES' 429 ${SYSCTL} net.inet6.ip6.forwarding=1 > /dev/null 430 else 431 ${SYSCTL} net.inet6.ip6.forwarding=0 > /dev/null 432 fi 433 434 [ -n "${_ropts_initdone}" ] && echo '.' 435} 436 437load_rc_config $name 438run_rc_command "$@" 439