etc/rc.d/routing

   1 #!/bin/sh
   2 #
   3 # Configure routing and miscellaneous network tunables
   4 #
   5 # $FreeBSD$
   6 #
   7
   8 # PROVIDE: routing
   9 # REQUIRE: netif ppp stf
  10 # KEYWORD: nojailvnet
  11
  12 . /etc/rc.subr
  13 . /etc/network.subr
  14
  15 name="routing"
  16 start_cmd="routing_start doall"
  17 stop_cmd="routing_stop"
  18 extra_commands="options static"
  19 static_cmd="routing_start static"
  20 options_cmd="routing_start options"
  21
  22 ROUTE_CMD="/sbin/route"
  23
  24 routing_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
  55 routing_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 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
  90 setroutes()
  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
 106 routing_stop_inet()
 107 {
 108         ${ROUTE_CMD} -n flush -inet
 109 }
 110
 111 routing_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
 123 routing_stop_atm()
 124 {
 125         return 0
 126 }
 127
 128 static_inet()
 129 {
 130         local _action _if _skip
 131         _action=$1
 132         _if=$2
 133
 134         # Add default route.
 135         case ${defaultrouter} in
 136         [Nn][Oo] | '')
 137                 ;;
 138         *)
 139                 static_routes="${static_routes} _default"
 140                 route__default="default ${defaultrouter}"
 141                 ;;
 142         esac
 143
 144         # Install configured routes.
 145         if [ -n "${static_routes}" ]; then
 146                 for i in ${static_routes}; do
 147                         _skip=0
 148                         if [ -n "$_if" ]; then
 149                                 case $i in
 150                                 *:$_if) ;;
 151                                 *)      _skip=1 ;;
 152                                 esac
 153                         fi
 154                         if [ $_skip = 0 ]; then
 155                                 route_args=`get_if_var ${i%:*} route_IF`
 156                                 if [ -n "$route_args" ]; then
 157                                         ${ROUTE_CMD} ${_action} ${route_args}
 158                                 else
 159                                         warn "route_${i%:*} not found."
 160                                 fi
 161                         fi
 162                 done
 163         fi
 164 }
 165
 166 static_inet6()
 167 {
 168         local _action _if _skip fibmod fibs
 169         _action=$1
 170         _if=$2
 171
 172         # get the number of FIBs supported.
 173         fibs=$((`${SYSCTL_N} net.fibs` - 1))
 174         if [ "$fibs" -gt 0 ]; then
 175                 fibmod="-fib 0-$fibs"
 176         else
 177                 fibmod=
 178         fi
 179
 180         # Add pre-defined static routes first.
 181         ipv6_static_routes="_v4mapped _v4compat ${ipv6_static_routes}"
 182         ipv6_static_routes="_lla _llma ${ipv6_static_routes}"
 183
 184         # disallow "internal" addresses to appear on the wire
 185         ipv6_route__v4mapped="::ffff:0.0.0.0 -prefixlen 96 ::1 -reject ${fibmod}"
 186         ipv6_route__v4compat="::0.0.0.0 -prefixlen 96 ::1 -reject ${fibmod}"
 187
 188         # Disallow link-local unicast packets without outgoing scope
 189         # identifiers.  However, if you set "ipv6_default_interface",
 190         # for the host case, you will allow to omit the identifiers.
 191         # Under this configuration, the packets will go to the default
 192         # interface.
 193         ipv6_route__lla="fe80:: -prefixlen 10 ::1 -reject ${fibmod}"
 194         ipv6_route__llma="ff02:: -prefixlen 16 ::1 -reject ${fibmod}"
 195
 196         # Add default route.
 197         case ${ipv6_defaultrouter} in
 198         [Nn][Oo] | '')
 199                 ;;
 200         *)
 201                 ipv6_static_routes="${ipv6_static_routes} _default"
 202                 ipv6_route__default="default ${ipv6_defaultrouter}"
 203                 ;;
 204         esac
 205
 206         # Install configured routes.
 207         if [ -n "${ipv6_static_routes}" ]; then
 208                 for i in ${ipv6_static_routes}; do
 209                         _skip=0
 210                         if [ -n "$_if" ]; then
 211                                 case $i in
 212                                 *:$_if) ;;
 213                                 *)      _skip=1 ;;
 214                                 esac
 215                         fi
 216                         if [ $_skip = 0 ]; then
 217                                 ipv6_route_args=`get_if_var ${i%:*} ipv6_route_IF`
 218                                 if [ -n "$ipv6_route_args" ]; then
 219                                         ${ROUTE_CMD} ${_action} \
 220                                                 -inet6 ${ipv6_route_args}
 221                                 else
 222                                         warn "route_${i%:*} not found"
 223                                 fi
 224                         fi
 225                 done
 226         fi
 227
 228         # Install the "default interface" to kernel, which will be used
 229         # as the default route when there's no router.
 230
 231         # Disable installing the default interface when we act
 232         # as router to avoid conflict between the default
 233         # router list and the manual configured default route.
 234         if checkyesno ipv6_gateway_enable; then
 235                 return
 236         fi
 237
 238         case "${ipv6_default_interface}" in
 239         [Nn][Oo] | [Nn][Oo][Nn][Ee])
 240                 return
 241                 ;;
 242         [Aa][Uu][Tt][Oo] | "")
 243                 for i in ${ipv6_network_interfaces}; do
 244                         case $i in
 245                         [Nn][Oo][Nn][Ee])
 246                                 return
 247                                 ;;
 248                         lo0)
 249                                 continue
 250                                 ;;
 251                         esac
 252                         laddr=`network6_getladdr $i exclude_tentative`
 253                         case ${laddr} in
 254                         '')
 255                                 ;;
 256                         *)
 257                                 ipv6_default_interface=$i
 258                                 break
 259                                 ;;
 260                         esac
 261                 done
 262                 ;;
 263         esac
 264
 265         ifconfig ${ipv6_default_interface} inet6 defaultif
 266         sysctl net.inet6.ip6.use_defaultzone=1
 267 }
 268
 269 static_atm()
 270 {
 271         local _action i route_args
 272         _action=$1
 273
 274         if [ -n "${natm_static_routes}" ]; then
 275                 for i in ${natm_static_routes}; do
 276                         route_args=`get_if_var $i route_IF`
 277                         if [ -n "$route_args" ]; then
 278                                 atmconfig natm ${_action} ${route_args}
 279                         else
 280                                 warn "route_${i} not found."
 281                         fi
 282                 done
 283         fi
 284 }
 285
 286 ropts_init()
 287 {
 288         if [ -z "${_ropts_initdone}" ]; then
 289                 echo -n "Additional $1 routing options:"
 290                 _ropts_initdone=yes
 291         fi
 292 }
 293
 294 options_inet()
 295 {
 296         _ropts_initdone=
 297         if checkyesno icmp_bmcastecho; then
 298                 ropts_init inet
 299                 echo -n ' broadcast ping responses=YES'
 300                 ${SYSCTL} net.inet.icmp.bmcastecho=1 > /dev/null
 301         else
 302                 ${SYSCTL} net.inet.icmp.bmcastecho=0 > /dev/null
 303         fi
 304
 305         if checkyesno icmp_drop_redirect; then
 306                 ropts_init inet
 307                 echo -n ' ignore ICMP redirect=YES'
 308                 ${SYSCTL} net.inet.icmp.drop_redirect=1 > /dev/null
 309         else
 310                 ${SYSCTL} net.inet.icmp.drop_redirect=0 > /dev/null
 311         fi
 312
 313         if checkyesno icmp_log_redirect; then
 314                 ropts_init inet
 315                 echo -n ' log ICMP redirect=YES'
 316                 ${SYSCTL} net.inet.icmp.log_redirect=1 > /dev/null
 317         else
 318                 ${SYSCTL} net.inet.icmp.log_redirect=0 > /dev/null
 319         fi
 320
 321         if checkyesno gateway_enable; then
 322                 ropts_init inet
 323                 echo -n ' gateway=YES'
 324                 ${SYSCTL} net.inet.ip.forwarding=1 > /dev/null
 325         else
 326                 ${SYSCTL} net.inet.ip.forwarding=0 > /dev/null
 327         fi
 328
 329         if checkyesno forward_sourceroute; then
 330                 ropts_init inet
 331                 echo -n ' do source routing=YES'
 332                 ${SYSCTL} net.inet.ip.sourceroute=1 > /dev/null
 333         else
 334                 ${SYSCTL} net.inet.ip.sourceroute=0 > /dev/null
 335         fi
 336
 337         if checkyesno accept_sourceroute; then
 338                 ropts_init inet
 339                 echo -n ' accept source routing=YES'
 340                 ${SYSCTL} net.inet.ip.accept_sourceroute=1 > /dev/null
 341         else
 342                 ${SYSCTL} net.inet.ip.accept_sourceroute=0 > /dev/null
 343         fi
 344
 345         if checkyesno arpproxy_all; then
 346                 ropts_init inet
 347                 echo -n ' ARP proxyall=YES'
 348                 ${SYSCTL} net.link.ether.inet.proxyall=1 > /dev/null
 349         else
 350                 ${SYSCTL} net.link.ether.inet.proxyall=0 > /dev/null
 351         fi
 352
 353         [ -n "${_ropts_initdone}" ] && echo '.'
 354 }
 355
 356 options_inet6()
 357 {
 358         _ropts_initdone=
 359
 360         if checkyesno ipv6_gateway_enable; then
 361                 ropts_init inet6
 362                 echo -n ' gateway=YES'
 363                 ${SYSCTL} net.inet6.ip6.forwarding=1 > /dev/null
 364         else
 365                 ${SYSCTL} net.inet6.ip6.forwarding=0 > /dev/null
 366         fi
 367
 368         [ -n "${_ropts_initdone}" ] && echo '.'
 369 }
 370
 371 options_atm()
 372 {
 373         _ropts_initdone=
 374
 375         [ -n "${_ropts_initdone}" ] && echo '.'
 376 }
 377
 378 load_rc_config $name
 379 run_rc_command "$@"