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