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 ${ipv6_network_interfaces}; do
 102                 ifconfig $i inet6 -defaultif
 103         done
 104 }
 105
 106 routing_stop_atm()
 107 {
 108         return 0
 109 }
 110
 111 routing_stop_ipx()
 112 {
 113         return 0
 114 }
 115
 116 static_inet()
 117 {
 118         local _action
 119         _action=$1
 120
 121         case ${defaultrouter} in
 122         [Nn][Oo] | '')
 123                 ;;
 124         *)
 125                 static_routes="default ${static_routes}"
 126                 route_default="default ${defaultrouter}"
 127                 ;;
 128         esac
 129
 130         if [ -n "${static_routes}" ]; then
 131                 for i in ${static_routes}; do
 132                         route_args=`get_if_var $i route_IF`
 133                         route ${_action} ${route_args}
 134                 done
 135         fi
 136 }
 137
 138 static_inet6()
 139 {
 140         local _action i fibs
 141         _action=$1
 142
 143         # get the number of FIBs supported.
 144         fibs=`sysctl -n net.fibs`
 145         : ${fibs:=1}
 146
 147         # disallow "internal" addresses to appear on the wire
 148         i=0
 149         while test ${i} -lt ${fibs}; do
 150                 setfib -F ${i} route ${_action} \
 151                     -inet6 ::ffff:0.0.0.0 -prefixlen 96 ::1 -reject
 152                 setfib -F ${i} route ${_action} \
 153                     -inet6 ::0.0.0.0 -prefixlen 96 ::1 -reject
 154                 i=$((i + 1))
 155         done
 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         i=0
 228         while test ${i} -lt ${fibs}; do
 229                 setfib -F ${i} route ${_action} \
 230                     -inet6 fe80:: -prefixlen 10 ::1 -reject
 231                 setfib -F ${i} route ${_action} \
 232                     -inet6 ff02:: -prefixlen 16 ::1 -reject
 233                 i=$((i + 1))
 234         done
 235
 236         case ${ipv6_default_interface} in
 237         '')
 238                 ;;
 239         *)
 240                 # Disable installing the default interface when we act
 241                 # as router to avoid conflict between the default
 242                 # router list and the manual configured default route.
 243                 if ! checkyesno ipv6_gateway_enable; then
 244                         ifconfig ${ipv6_default_interface} inet6 defaultif
 245                         sysctl net.inet6.ip6.use_defaultzone=1
 246                 fi
 247                 ;;
 248         esac
 249 }
 250
 251 static_atm()
 252 {
 253         local _action i route_args
 254         _action=$1
 255
 256         if [ -n "${natm_static_routes}" ]; then
 257                 for i in ${natm_static_routes}; do
 258                         route_args=`get_if_var $i route_IF`
 259                         atmconfig natm ${_action} ${route_args}
 260                 done
 261         fi
 262 }
 263
 264 static_ipx()
 265 {
 266 }
 267
 268 ropts_init()
 269 {
 270         if [ -z "${_ropts_initdone}" ]; then
 271                 echo -n "Additional $1 routing options:"
 272                 _ropts_initdone=yes
 273         fi
 274 }
 275
 276 options_inet()
 277 {
 278         _ropts_initdone=
 279         if checkyesno icmp_bmcastecho; then
 280                 ropts_init inet
 281                 echo -n ' broadcast ping responses=YES'
 282                 ${SYSCTL} net.inet.icmp.bmcastecho=1 > /dev/null
 283         else
 284                 ${SYSCTL} net.inet.icmp.bmcastecho=0 > /dev/null
 285         fi
 286
 287         if checkyesno icmp_drop_redirect; then
 288                 ropts_init inet
 289                 echo -n ' ignore ICMP redirect=YES'
 290                 ${SYSCTL} net.inet.icmp.drop_redirect=1 > /dev/null
 291         else
 292                 ${SYSCTL} net.inet.icmp.drop_redirect=0 > /dev/null
 293         fi
 294
 295         if checkyesno icmp_log_redirect; then
 296                 ropts_init inet
 297                 echo -n ' log ICMP redirect=YES'
 298                 ${SYSCTL} net.inet.icmp.log_redirect=1 > /dev/null
 299         else
 300                 ${SYSCTL} net.inet.icmp.log_redirect=0 > /dev/null
 301         fi
 302
 303         if checkyesno gateway_enable; then
 304                 ropts_init inet
 305                 echo -n ' gateway=YES'
 306                 ${SYSCTL} net.inet.ip.forwarding=1 > /dev/null
 307         else
 308                 ${SYSCTL} net.inet.ip.forwarding=0 > /dev/null
 309         fi
 310
 311         if checkyesno forward_sourceroute; then
 312                 ropts_init inet
 313                 echo -n ' do source routing=YES'
 314                 ${SYSCTL} net.inet.ip.sourceroute=1 > /dev/null
 315         else
 316                 ${SYSCTL} net.inet.ip.sourceroute=0 > /dev/null
 317         fi
 318
 319         if checkyesno accept_sourceroute; then
 320                 ropts_init inet
 321                 echo -n ' accept source routing=YES'
 322                 ${SYSCTL} net.inet.ip.accept_sourceroute=1 > /dev/null
 323         else
 324                 ${SYSCTL} net.inet.ip.accept_sourceroute=0 > /dev/null
 325         fi
 326
 327         if checkyesno arpproxy_all; then
 328                 ropts_init inet
 329                 echo -n ' ARP proxyall=YES'
 330                 ${SYSCTL} net.link.ether.inet.proxyall=1 > /dev/null
 331         else
 332                 ${SYSCTL} net.link.ether.inet.proxyall=0 > /dev/null
 333         fi
 334
 335         [ -n "${_ropts_initdone}" ] && echo '.'
 336 }
 337
 338 options_inet6()
 339 {
 340         _ropts_initdone=
 341
 342         if checkyesno ipv6_gateway_enable; then
 343                 ropts_init inet6
 344                 echo -n ' gateway=YES'
 345                 ${SYSCTL} net.inet6.ip6.forwarding=1 > /dev/null
 346         else
 347                 ${SYSCTL} net.inet6.ip6.forwarding=0 > /dev/null
 348         fi
 349
 350         [ -n "${_ropts_initdone}" ] && echo '.'
 351 }
 352
 353 options_atm()
 354 {
 355         _ropts_initdone=
 356
 357         [ -n "${_ropts_initdone}" ] && echo '.'
 358 }
 359
 360 options_ipx()
 361 {
 362         _ropts_initdone=
 363
 364         if checkyesno ipxgateway_enable; then
 365                 ropts_init ipx
 366                 echo -n ' gateway=YES'
 367                 ${SYSCTL} net.ipx.ipx.ipxforwarding=1 > /dev/null
 368         else
 369                 ${SYSCTL} net.ipx.ipx.ipxforwarding=0 > /dev/null
 370         fi
 371
 372         [ -n "${_ropts_initdone}" ] && echo '.'
 373 }
 374
 375 load_rc_config $name
 376 run_rc_command "$@"