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: nojail
  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 afcheck()
  23 {
  24         case $_af in
  25         ""|inet|inet6|ipx|atm)
  26                 ;;
  27         *)
  28                 err 1 "Unsupported address family: $_af."
  29                 ;;
  30         esac
  31 }
  32
  33 routing_start()
  34 {
  35         local _cmd _af _a
  36         _cmd=$1
  37         _af=$2
  38
  39         afcheck
  40
  41         case $_af in
  42         inet|inet6|ipx|atm)
  43                 setroutes $_cmd $_af
  44                 ;;
  45         "")
  46                 for _a in inet inet6 ipx atm; do
  47                         afexists $_a && setroutes $_cmd $_a
  48                 done
  49                 ;;
  50         esac
  51 }
  52
  53 routing_stop()
  54 {
  55         local _af _a
  56         _af=$1
  57
  58         afcheck
  59
  60         case $_af in
  61         inet|inet6|ipx|atm)
  62                 eval static_${_af} delete
  63                 eval routing_stop_${_af}
  64                 ;;
  65         "")
  66                 for _a in inet inet6 ipx atm; do
  67                         afexists $_a || continue
  68                         eval static_${_a} delete
  69                         eval routing_stop_${_a}
  70                 done
  71                 ;;
  72         esac
  73 }
  74
  75 setroutes()
  76 {
  77         case $1 in
  78         static)
  79                 static_$2 add
  80                 ;;
  81         options)
  82                 options_$2
  83                 ;;
  84         doall)
  85                 static_$2 add
  86                 options_$2
  87                 ;;
  88         esac
  89 }
  90
  91 routing_stop_inet()
  92 {
  93         route -n flush -inet
  94 }
  95
  96 routing_stop_inet6()
  97 {
  98         local i
  99
 100         route -n flush -inet6
 101         for i in `list_net_interfaces`; do
 102                 if ipv6if $i; then
 103                         ifconfig $i inet6 -defaultif
 104                 fi
 105         done
 106 }
 107
 108 routing_stop_atm()
 109 {
 110         return 0
 111 }
 112
 113 routing_stop_ipx()
 114 {
 115         return 0
 116 }
 117
 118 static_inet()
 119 {
 120         local _action
 121         _action=$1
 122
 123         case ${defaultrouter} in
 124         [Nn][Oo] | '')
 125                 ;;
 126         *)
 127                 static_routes="default ${static_routes}"
 128                 route_default="default ${defaultrouter}"
 129                 ;;
 130         esac
 131
 132         if [ -n "${static_routes}" ]; then
 133                 for i in ${static_routes}; do
 134                         route_args=`get_if_var $i route_IF`
 135                         route ${_action} ${route_args}
 136                 done
 137         fi
 138 }
 139
 140 static_inet6()
 141 {
 142         local _action fibmod fibs
 143         _action=$1
 144
 145         # get the number of FIBs supported.
 146         fibs=$((`${SYSCTL_N} net.fibs` - 1))
 147         if [ "$fibs" -gt 0 ]; then
 148                 fibmod="-fib 0-$fibs"
 149         else
 150                 fibmod=
 151         fi
 152
 153         # disallow "internal" addresses to appear on the wire
 154         route ${_action} -inet6 ::ffff:0.0.0.0 -prefixlen 96 ::1 -reject ${fibmod}
 155         route ${_action} -inet6 ::0.0.0.0 -prefixlen 96 ::1 -reject ${fibmod}
 156
 157         case ${ipv6_defaultrouter} in
 158         [Nn][Oo] | '')
 159                 ;;
 160         *)
 161                 ipv6_static_routes="default ${ipv6_static_routes}"
 162                 ipv6_route_default="default ${ipv6_defaultrouter}"
 163                 ;;
 164         esac
 165
 166         if [ -n "${ipv6_static_routes}" ]; then
 167                 for i in ${ipv6_static_routes}; do
 168                         ipv6_route_args=`get_if_var $i ipv6_route_IF`
 169                         route ${_action} -inet6 ${ipv6_route_args}
 170                 done
 171         fi
 172
 173         # Fixup $ipv6_network_interfaces
 174         case ${ipv6_network_interfaces} in
 175         [Nn][Oo][Nn][Ee])
 176                 ipv6_network_interfaces=''
 177                 ;;
 178         esac
 179
 180         if checkyesno ipv6_gateway_enable; then
 181                 for i in ${ipv6_network_interfaces}; do
 182
 183                         laddr=`network6_getladdr $i exclude_tentative`
 184                         case ${laddr} in
 185                         '')
 186                                 ;;
 187                         *)
 188                                 ipv6_working_interfaces="$i \
 189                                     ${ipv6_working_interfaces}"
 190                                 ;;
 191                         esac
 192                 done
 193                 ipv6_network_interfaces=${ipv6_working_interfaces}
 194         fi
 195
 196         # Install the "default interface" to kernel, which will be used
 197         # as the default route when there's no router.
 198         case "${ipv6_default_interface}" in
 199         [Nn][Oo] | [Nn][Oo][Nn][Ee])
 200                 ipv6_default_interface=""
 201                 ;;
 202         [Aa][Uu][Tt][Oo] | "")
 203                 for i in ${ipv6_network_interfaces}; do
 204                         case $i in
 205                         lo0|faith[0-9]*)
 206                                 continue
 207                                 ;;
 208                         esac
 209                         laddr=`network6_getladdr $i exclude_tentative`
 210                         case ${laddr} in
 211                         '')
 212                                 ;;
 213                         *)
 214                                 ipv6_default_interface=$i
 215                                 break
 216                                 ;;
 217                         esac
 218                 done
 219                 ;;
 220         esac
 221
 222         # Disallow link-local unicast packets without outgoing scope
 223         # identifiers.  However, if you set "ipv6_default_interface",
 224         # for the host case, you will allow to omit the identifiers.
 225         # Under this configuration, the packets will go to the default
 226         # interface.
 227         route ${_action} -inet6 fe80:: -prefixlen 10 ::1 -reject ${fibmod}
 228         route ${_action} -inet6 ff02:: -prefixlen 16 ::1 -reject ${fibmod}
 229
 230         case ${ipv6_default_interface} in
 231         '')
 232                 ;;
 233         *)
 234                 # Disable installing the default interface when we act
 235                 # as router to avoid conflict between the default
 236                 # router list and the manual configured default route.
 237                 if ! checkyesno ipv6_gateway_enable; then
 238                         ifconfig ${ipv6_default_interface} inet6 defaultif
 239                         sysctl net.inet6.ip6.use_defaultzone=1
 240                 fi
 241                 ;;
 242         esac
 243 }
 244
 245 static_atm()
 246 {
 247         local _action i route_args
 248         _action=$1
 249
 250         if [ -n "${natm_static_routes}" ]; then
 251                 for i in ${natm_static_routes}; do
 252                         route_args=`get_if_var $i route_IF`
 253                         atmconfig natm ${_action} ${route_args}
 254                 done
 255         fi
 256 }
 257
 258 static_ipx()
 259 {
 260         :
 261 }
 262
 263 ropts_init()
 264 {
 265         if [ -z "${_ropts_initdone}" ]; then
 266                 echo -n "Additional $1 routing options:"
 267                 _ropts_initdone=yes
 268         fi
 269 }
 270
 271 options_inet()
 272 {
 273         _ropts_initdone=
 274         if checkyesno icmp_bmcastecho; then
 275                 ropts_init inet
 276                 echo -n ' broadcast ping responses=YES'
 277                 ${SYSCTL} net.inet.icmp.bmcastecho=1 > /dev/null
 278         else
 279                 ${SYSCTL} net.inet.icmp.bmcastecho=0 > /dev/null
 280         fi
 281
 282         if checkyesno icmp_drop_redirect; then
 283                 ropts_init inet
 284                 echo -n ' ignore ICMP redirect=YES'
 285                 ${SYSCTL} net.inet.icmp.drop_redirect=1 > /dev/null
 286         else
 287                 ${SYSCTL} net.inet.icmp.drop_redirect=0 > /dev/null
 288         fi
 289
 290         if checkyesno icmp_log_redirect; then
 291                 ropts_init inet
 292                 echo -n ' log ICMP redirect=YES'
 293                 ${SYSCTL} net.inet.icmp.log_redirect=1 > /dev/null
 294         else
 295                 ${SYSCTL} net.inet.icmp.log_redirect=0 > /dev/null
 296         fi
 297
 298         if checkyesno gateway_enable; then
 299                 ropts_init inet
 300                 echo -n ' gateway=YES'
 301                 ${SYSCTL} net.inet.ip.forwarding=1 > /dev/null
 302         else
 303                 ${SYSCTL} net.inet.ip.forwarding=0 > /dev/null
 304         fi
 305
 306         if checkyesno forward_sourceroute; then
 307                 ropts_init inet
 308                 echo -n ' do source routing=YES'
 309                 ${SYSCTL} net.inet.ip.sourceroute=1 > /dev/null
 310         else
 311                 ${SYSCTL} net.inet.ip.sourceroute=0 > /dev/null
 312         fi
 313
 314         if checkyesno accept_sourceroute; then
 315                 ropts_init inet
 316                 echo -n ' accept source routing=YES'
 317                 ${SYSCTL} net.inet.ip.accept_sourceroute=1 > /dev/null
 318         else
 319                 ${SYSCTL} net.inet.ip.accept_sourceroute=0 > /dev/null
 320         fi
 321
 322         if checkyesno arpproxy_all; then
 323                 ropts_init inet
 324                 echo -n ' ARP proxyall=YES'
 325                 ${SYSCTL} net.link.ether.inet.proxyall=1 > /dev/null
 326         else
 327                 ${SYSCTL} net.link.ether.inet.proxyall=0 > /dev/null
 328         fi
 329
 330         [ -n "${_ropts_initdone}" ] && echo '.'
 331 }
 332
 333 options_inet6()
 334 {
 335         _ropts_initdone=
 336
 337         if checkyesno ipv6_gateway_enable; then
 338                 ropts_init inet6
 339                 echo -n ' gateway=YES'
 340                 ${SYSCTL} net.inet6.ip6.forwarding=1 > /dev/null
 341         else
 342                 ${SYSCTL} net.inet6.ip6.forwarding=0 > /dev/null
 343         fi
 344
 345         [ -n "${_ropts_initdone}" ] && echo '.'
 346 }
 347
 348 options_atm()
 349 {
 350         _ropts_initdone=
 351
 352         [ -n "${_ropts_initdone}" ] && echo '.'
 353 }
 354
 355 options_ipx()
 356 {
 357         _ropts_initdone=
 358
 359         if checkyesno ipxgateway_enable; then
 360                 ropts_init ipx
 361                 echo -n ' gateway=YES'
 362                 ${SYSCTL} net.ipx.ipx.ipxforwarding=1 > /dev/null
 363         else
 364                 ${SYSCTL} net.ipx.ipx.ipxforwarding=0 > /dev/null
 365         fi
 366
 367         [ -n "${_ropts_initdone}" ] && echo '.'
 368 }
 369
 370 load_rc_config $name
 371 run_rc_command "$@"