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 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 fibmod fibs
 141         _action=$1
 142
 143         # get the number of FIBs supported.
 144         fibs=$((`${SYSCTL_N} net.fibs` - 1))
 145         if [ "$fibs" -gt 0 ]; then
 146                 fibmod="-fib 0-$fibs"
 147         else
 148                 fibmod=
 149         fi
 150
 151         # disallow "internal" addresses to appear on the wire
 152         route ${_action} -inet6 ::ffff:0.0.0.0 -prefixlen 96 ::1 -reject ${fibmod}
 153         route ${_action} -inet6 ::0.0.0.0 -prefixlen 96 ::1 -reject ${fibmod}
 154
 155         case ${ipv6_defaultrouter} in
 156         [Nn][Oo] | '')
 157                 ;;
 158         *)
 159                 ipv6_static_routes="default ${ipv6_static_routes}"
 160                 ipv6_route_default="default ${ipv6_defaultrouter}"
 161                 ;;
 162         esac
 163
 164         if [ -n "${ipv6_static_routes}" ]; then
 165                 for i in ${ipv6_static_routes}; do
 166                         ipv6_route_args=`get_if_var $i ipv6_route_IF`
 167                         route ${_action} -inet6 ${ipv6_route_args}
 168                 done
 169         fi
 170
 171         # Fixup $ipv6_network_interfaces
 172         case ${ipv6_network_interfaces} in
 173         [Nn][Oo][Nn][Ee])
 174                 ipv6_network_interfaces=''
 175                 ;;
 176         esac
 177
 178         if checkyesno ipv6_gateway_enable; then
 179                 for i in ${ipv6_network_interfaces}; do
 180
 181                         laddr=`network6_getladdr $i exclude_tentative`
 182                         case ${laddr} in
 183                         '')
 184                                 ;;
 185                         *)
 186                                 ipv6_working_interfaces="$i \
 187                                     ${ipv6_working_interfaces}"
 188                                 ;;
 189                         esac
 190                 done
 191                 ipv6_network_interfaces=${ipv6_working_interfaces}
 192         fi
 193
 194         # Install the "default interface" to kernel, which will be used
 195         # as the default route when there's no router.
 196         case "${ipv6_default_interface}" in
 197         [Nn][Oo] | [Nn][Oo][Nn][Ee])
 198                 ipv6_default_interface=""
 199                 ;;
 200         [Aa][Uu][Tt][Oo] | "")
 201                 for i in ${ipv6_network_interfaces}; do
 202                         case $i in
 203                         lo0|faith[0-9]*)
 204                                 continue
 205                                 ;;
 206                         esac
 207                         laddr=`network6_getladdr $i exclude_tentative`
 208                         case ${laddr} in
 209                         '')
 210                                 ;;
 211                         *)
 212                                 ipv6_default_interface=$i
 213                                 break
 214                                 ;;
 215                         esac
 216                 done
 217                 ;;
 218         esac
 219
 220         # Disallow link-local unicast packets without outgoing scope
 221         # identifiers.  However, if you set "ipv6_default_interface",
 222         # for the host case, you will allow to omit the identifiers.
 223         # Under this configuration, the packets will go to the default
 224         # interface.
 225         route ${_action} -inet6 fe80:: -prefixlen 10 ::1 -reject ${fibmod}
 226         route ${_action} -inet6 ff02:: -prefixlen 16 ::1 -reject ${fibmod}
 227
 228         case ${ipv6_default_interface} in
 229         '')
 230                 ;;
 231         *)
 232                 # Disable installing the default interface when we act
 233                 # as router to avoid conflict between the default
 234                 # router list and the manual configured default route.
 235                 if ! checkyesno ipv6_gateway_enable; then
 236                         ifconfig ${ipv6_default_interface} inet6 defaultif
 237                         sysctl net.inet6.ip6.use_defaultzone=1
 238                 fi
 239                 ;;
 240         esac
 241 }
 242
 243 static_atm()
 244 {
 245         local _action i route_args
 246         _action=$1
 247
 248         if [ -n "${natm_static_routes}" ]; then
 249                 for i in ${natm_static_routes}; do
 250                         route_args=`get_if_var $i route_IF`
 251                         atmconfig natm ${_action} ${route_args}
 252                 done
 253         fi
 254 }
 255
 256 static_ipx()
 257 {
 258 }
 259
 260 ropts_init()
 261 {
 262         if [ -z "${_ropts_initdone}" ]; then
 263                 echo -n "Additional $1 routing options:"
 264                 _ropts_initdone=yes
 265         fi
 266 }
 267
 268 options_inet()
 269 {
 270         _ropts_initdone=
 271         if checkyesno icmp_bmcastecho; then
 272                 ropts_init inet
 273                 echo -n ' broadcast ping responses=YES'
 274                 ${SYSCTL} net.inet.icmp.bmcastecho=1 > /dev/null
 275         else
 276                 ${SYSCTL} net.inet.icmp.bmcastecho=0 > /dev/null
 277         fi
 278
 279         if checkyesno icmp_drop_redirect; then
 280                 ropts_init inet
 281                 echo -n ' ignore ICMP redirect=YES'
 282                 ${SYSCTL} net.inet.icmp.drop_redirect=1 > /dev/null
 283         else
 284                 ${SYSCTL} net.inet.icmp.drop_redirect=0 > /dev/null
 285         fi
 286
 287         if checkyesno icmp_log_redirect; then
 288                 ropts_init inet
 289                 echo -n ' log ICMP redirect=YES'
 290                 ${SYSCTL} net.inet.icmp.log_redirect=1 > /dev/null
 291         else
 292                 ${SYSCTL} net.inet.icmp.log_redirect=0 > /dev/null
 293         fi
 294
 295         if checkyesno gateway_enable; then
 296                 ropts_init inet
 297                 echo -n ' gateway=YES'
 298                 ${SYSCTL} net.inet.ip.forwarding=1 > /dev/null
 299         else
 300                 ${SYSCTL} net.inet.ip.forwarding=0 > /dev/null
 301         fi
 302
 303         if checkyesno forward_sourceroute; then
 304                 ropts_init inet
 305                 echo -n ' do source routing=YES'
 306                 ${SYSCTL} net.inet.ip.sourceroute=1 > /dev/null
 307         else
 308                 ${SYSCTL} net.inet.ip.sourceroute=0 > /dev/null
 309         fi
 310
 311         if checkyesno accept_sourceroute; then
 312                 ropts_init inet
 313                 echo -n ' accept source routing=YES'
 314                 ${SYSCTL} net.inet.ip.accept_sourceroute=1 > /dev/null
 315         else
 316                 ${SYSCTL} net.inet.ip.accept_sourceroute=0 > /dev/null
 317         fi
 318
 319         if checkyesno arpproxy_all; then
 320                 ropts_init inet
 321                 echo -n ' ARP proxyall=YES'
 322                 ${SYSCTL} net.link.ether.inet.proxyall=1 > /dev/null
 323         else
 324                 ${SYSCTL} net.link.ether.inet.proxyall=0 > /dev/null
 325         fi
 326
 327         [ -n "${_ropts_initdone}" ] && echo '.'
 328 }
 329
 330 options_inet6()
 331 {
 332         _ropts_initdone=
 333
 334         if checkyesno ipv6_gateway_enable; then
 335                 ropts_init inet6
 336                 echo -n ' gateway=YES'
 337                 ${SYSCTL} net.inet6.ip6.forwarding=1 > /dev/null
 338         else
 339                 ${SYSCTL} net.inet6.ip6.forwarding=0 > /dev/null
 340         fi
 341
 342         [ -n "${_ropts_initdone}" ] && echo '.'
 343 }
 344
 345 options_atm()
 346 {
 347         _ropts_initdone=
 348
 349         [ -n "${_ropts_initdone}" ] && echo '.'
 350 }
 351
 352 options_ipx()
 353 {
 354         _ropts_initdone=
 355
 356         if checkyesno ipxgateway_enable; then
 357                 ropts_init ipx
 358                 echo -n ' gateway=YES'
 359                 ${SYSCTL} net.ipx.ipx.ipxforwarding=1 > /dev/null
 360         else
 361                 ${SYSCTL} net.ipx.ipx.ipxforwarding=0 > /dev/null
 362         fi
 363
 364         [ -n "${_ropts_initdone}" ] && echo '.'
 365 }
 366
 367 load_rc_config $name
 368 run_rc_command "$@"