| 1 | # |
| 2 | # Copyright (c) 2003 The FreeBSD Project. All rights reserved. |
| 3 | # |
| 4 | # Redistribution and use in source and binary forms, with or without |
| 5 | # modification, are permitted provided that the following conditions |
| 6 | # are met: |
| 7 | # 1. Redistributions of source code must retain the above copyright |
| 8 | # notice, this list of conditions and the following disclaimer. |
| 9 | # 2. Redistributions in binary form must reproduce the above copyright |
| 10 | # notice, this list of conditions and the following disclaimer in the |
| 11 | # documentation and/or other materials provided with the distribution. |
| 12 | # |
| 13 | # THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND |
| 14 | # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 15 | # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 16 | # ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE |
| 17 | # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 18 | # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 19 | # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 20 | # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 21 | # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 22 | # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 23 | # SUCH DAMAGE. |
| 24 | # |
| 25 | # $FreeBSD: src/etc/network.subr,v 1.163 2005/06/30 04:52:47 brooks Exp $ |
| 26 | # $DragonFly: src/etc/network.subr,v 1.7 2008/03/15 10:13:37 hasso Exp $ |
| 27 | # |
| 28 | |
| 29 | # |
| 30 | # Subroutines commonly used from network startup scripts. |
| 31 | # Requires that rc.conf be loaded first. |
| 32 | # |
| 33 | |
| 34 | # ifconfig_up if |
| 35 | # Evaluate ifconfig(8) arguments for interface $if and |
| 36 | # run ifconfig(8) with those arguments. It returns 0 if |
| 37 | # arguments were found and executed or 1 if the interface |
| 38 | # had no arguments. Pseudo arguments DHCP and WPA are handled |
| 39 | # here. |
| 40 | # |
| 41 | ifconfig_up() |
| 42 | { |
| 43 | _cfg=1 |
| 44 | |
| 45 | ifconfig_args=`ifconfig_getargs $1` |
| 46 | if [ -n "${ifconfig_args}" ]; then |
| 47 | ifconfig $1 ${ifconfig_args} |
| 48 | _cfg=0 |
| 49 | fi |
| 50 | |
| 51 | if wpaif $1; then |
| 52 | /etc/rc.d/wpa_supplicant start $1 |
| 53 | _cfg=0 # XXX: not sure this should count |
| 54 | fi |
| 55 | |
| 56 | if dhcpif $1; then |
| 57 | /etc/rc.d/dhclient start $1 |
| 58 | _cfg=0 |
| 59 | fi |
| 60 | |
| 61 | return $_cfg |
| 62 | } |
| 63 | |
| 64 | # ifconfig_down if |
| 65 | # Remove all inet entries from the $if interface. It returns |
| 66 | # 0 if inet entries were found and removed. It returns 1 if |
| 67 | # no entries were found or they could not be removed. |
| 68 | # |
| 69 | ifconfig_down() |
| 70 | { |
| 71 | [ -z "$1" ] && return 1 |
| 72 | _ifs="^" |
| 73 | _cfg=1 |
| 74 | |
| 75 | inetList="`ifconfig $1 | grep 'inet ' | tr "\n" "$_ifs"`" |
| 76 | |
| 77 | oldifs="$IFS" |
| 78 | IFS="$_ifs" |
| 79 | for _inet in $inetList ; do |
| 80 | # get rid of extraneous line |
| 81 | [ -z "$_inet" ] && break |
| 82 | |
| 83 | _inet=`expr "$_inet" : '.*\(inet \([0-9]\{1,3\}\.\)\{3\}[0-9]\{1,3\}\).*'` |
| 84 | |
| 85 | IFS="$oldifs" |
| 86 | ifconfig $1 ${_inet} delete |
| 87 | IFS="$_ifs" |
| 88 | _cfg=0 |
| 89 | done |
| 90 | IFS="$oldifs" |
| 91 | |
| 92 | if wpaif $1; then |
| 93 | /etc/rc.d/wpa_supplicant stop $1 |
| 94 | fi |
| 95 | |
| 96 | if dhcpif $1; then |
| 97 | /etc/rc.d/dhclient stop $1 |
| 98 | _cfg=0 |
| 99 | fi |
| 100 | |
| 101 | return $_cfg |
| 102 | } |
| 103 | |
| 104 | # _ifconfig_getargs if |
| 105 | # Echos the arguments for the supplied interface to stdout. |
| 106 | # returns 1 if empty. In general, ifconfig_getargs should be used |
| 107 | # outside this file. |
| 108 | _ifconfig_getargs() |
| 109 | { |
| 110 | _ifn=$1 |
| 111 | if [ -z "$_ifn" ]; then |
| 112 | return 1 |
| 113 | fi |
| 114 | |
| 115 | eval _args=\$ifconfig_$1 |
| 116 | if [ -z "$_args" -a -n "${pccard_ifconfig}" ]; then |
| 117 | for _if in ${removable_interfaces} ; do |
| 118 | if [ "$_if" = "$_ifn" ] ; then |
| 119 | _args=${pccard_ifconfig} |
| 120 | break |
| 121 | fi |
| 122 | done |
| 123 | fi |
| 124 | |
| 125 | echo $_args |
| 126 | } |
| 127 | |
| 128 | # ifconfig_getargs if |
| 129 | # Takes the result from _ifconfig_getargs and removes pseudo |
| 130 | # args such as DHCP and WPA. |
| 131 | ifconfig_getargs() |
| 132 | { |
| 133 | _tmpargs=`_ifconfig_getargs $1` |
| 134 | if [ $? -eq 1 ]; then |
| 135 | return 1 |
| 136 | fi |
| 137 | _args= |
| 138 | |
| 139 | is_optarg=no |
| 140 | for _arg in $_tmpargs; do |
| 141 | if [ "$is_optarg" = "no" ]; then |
| 142 | case $_arg in |
| 143 | [Dd][Hh][Cc][Pp]) |
| 144 | ;; |
| 145 | [Ww][Pp][Aa]) |
| 146 | ;; |
| 147 | *) |
| 148 | _args="$_args $_arg" |
| 149 | case $_arg in |
| 150 | authmode) |
| 151 | is_optarg=yes |
| 152 | ;; |
| 153 | esac |
| 154 | ;; |
| 155 | esac |
| 156 | else |
| 157 | _args="$_args $_arg" |
| 158 | is_optarg=no |
| 159 | fi |
| 160 | done |
| 161 | |
| 162 | echo $_args |
| 163 | } |
| 164 | |
| 165 | # dhcpif if |
| 166 | # Returns 0 if the interface is a DHCP interface and 1 otherwise. |
| 167 | dhcpif() |
| 168 | { |
| 169 | _tmpargs=`_ifconfig_getargs $1` |
| 170 | for _arg in $_tmpargs; do |
| 171 | case $_arg in |
| 172 | [Dd][Hh][Cc][Pp]) |
| 173 | return 0 |
| 174 | ;; |
| 175 | esac |
| 176 | done |
| 177 | return 1 |
| 178 | } |
| 179 | |
| 180 | # wpaif if |
| 181 | # Returns 0 if the interface is a WPA interface and 1 otherwise. |
| 182 | wpaif() |
| 183 | { |
| 184 | _tmpargs=`_ifconfig_getargs $1` |
| 185 | is_optarg=no |
| 186 | for _arg in $_tmpargs; do |
| 187 | if [ "$is_optarg" = "no" ]; then |
| 188 | case $_arg in |
| 189 | [Ww][Pp][Aa]) |
| 190 | return 0 |
| 191 | ;; |
| 192 | authmode) |
| 193 | is_optarg=yes |
| 194 | ;; |
| 195 | esac |
| 196 | else |
| 197 | is_optarg=no |
| 198 | fi |
| 199 | done |
| 200 | return 1 |
| 201 | } |
| 202 | |
| 203 | # ifalias_up if |
| 204 | # Configure aliases for network interface $if. |
| 205 | # It returns 0 if at least one alias was configured or |
| 206 | # 1 if there were none. |
| 207 | # |
| 208 | ifalias_up() |
| 209 | { |
| 210 | _ret=1 |
| 211 | alias=0 |
| 212 | while : ; do |
| 213 | eval ifconfig_args=\$ifconfig_$1_alias${alias} |
| 214 | if [ -n "${ifconfig_args}" ]; then |
| 215 | ifconfig $1 ${ifconfig_args} alias |
| 216 | alias=$((${alias} + 1)) |
| 217 | _ret=0 |
| 218 | else |
| 219 | break |
| 220 | fi |
| 221 | done |
| 222 | return $_ret |
| 223 | } |
| 224 | |
| 225 | #ifalias_down if |
| 226 | # Remove aliases for network interface $if. |
| 227 | # It returns 0 if at least one alias was removed or |
| 228 | # 1 if there were none. |
| 229 | # |
| 230 | ifalias_down() |
| 231 | { |
| 232 | _ret=1 |
| 233 | alias=0 |
| 234 | while : ; do |
| 235 | eval ifconfig_args=\$ifconfig_$1_alias${alias} |
| 236 | if [ -n "${ifconfig_args}" ]; then |
| 237 | ifconfig $1 ${ifconfig_args} -alias |
| 238 | alias=$((${alias} + 1)) |
| 239 | _ret=0 |
| 240 | else |
| 241 | break |
| 242 | fi |
| 243 | done |
| 244 | return $_ret |
| 245 | } |
| 246 | |
| 247 | # ifscript_up if |
| 248 | # Evaluate a startup script for the $if interface. |
| 249 | # It returns 0 if a script was found and processed or |
| 250 | # 1 if no script was found. |
| 251 | # |
| 252 | ifscript_up() |
| 253 | { |
| 254 | if [ -r /etc/start_if.$1 ]; then |
| 255 | . /etc/start_if.$1 |
| 256 | return 0 |
| 257 | fi |
| 258 | return 1 |
| 259 | } |
| 260 | |
| 261 | # ifscript_down if |
| 262 | # Evaluate a shutdown script for the $if interface. |
| 263 | # It returns 0 if a script was found and processed or |
| 264 | # 1 if no script was found. |
| 265 | # |
| 266 | ifscript_down() |
| 267 | { |
| 268 | if [ -r /etc/stop_if.$1 ]; then |
| 269 | . /etc/stop_if.$1 |
| 270 | return 0 |
| 271 | fi |
| 272 | return 1 |
| 273 | } |
| 274 | |
| 275 | # Create cloneable interfaces. |
| 276 | # |
| 277 | clone_up() |
| 278 | { |
| 279 | _prefix= |
| 280 | _list= |
| 281 | for ifn in ${cloned_interfaces}; do |
| 282 | ifconfig ${ifn} create |
| 283 | if [ $? -eq 0 ]; then |
| 284 | _list="${_list}${_prefix}${ifn}" |
| 285 | [ -z "$_prefix" ] && _prefix=' ' |
| 286 | fi |
| 287 | done |
| 288 | debug "Cloned: ${_list}" |
| 289 | } |
| 290 | |
| 291 | # Destroy cloned interfaces. Destroyed interfaces are echoed |
| 292 | # to standard output. |
| 293 | # |
| 294 | clone_down() |
| 295 | { |
| 296 | _prefix= |
| 297 | _list= |
| 298 | for ifn in ${cloned_interfaces}; do |
| 299 | ifconfig ${ifn} destroy |
| 300 | if [ $? -eq 0 ]; then |
| 301 | _list="${_list}${_prefix}${ifn}" |
| 302 | [ -z "$_prefix" ] && _prefix=' ' |
| 303 | fi |
| 304 | done |
| 305 | debug "Destroyed clones: ${_list}" |
| 306 | } |
| 307 | |
| 308 | gif_up() { |
| 309 | case ${gif_interfaces} in |
| 310 | [Nn][Oo] | '') |
| 311 | ;; |
| 312 | *) |
| 313 | for i in ${gif_interfaces}; do |
| 314 | eval peers=\$gifconfig_$i |
| 315 | case ${peers} in |
| 316 | '') |
| 317 | continue |
| 318 | ;; |
| 319 | *) |
| 320 | ifconfig $i create >/dev/null 2>&1 |
| 321 | ifconfig $i tunnel ${peers} |
| 322 | ifconfig $i up |
| 323 | ;; |
| 324 | esac |
| 325 | done |
| 326 | ;; |
| 327 | esac |
| 328 | } |
| 329 | |
| 330 | # |
| 331 | # ipx_up ifn |
| 332 | # Configure any IPX addresses for interface $ifn. Returns 0 if IPX |
| 333 | # arguments were found and configured; returns 1 otherwise. |
| 334 | # |
| 335 | ipx_up() |
| 336 | { |
| 337 | ifn="$1" |
| 338 | eval ifconfig_args=\$ifconfig_${ifn}_ipx |
| 339 | if [ -n "${ifconfig_args}" ]; then |
| 340 | ifconfig ${ifn} ${ifconfig_args} |
| 341 | return 0 |
| 342 | fi |
| 343 | return 1 |
| 344 | } |
| 345 | |
| 346 | # ipx_down ifn |
| 347 | # Remove IPX addresses for interface $ifn. Returns 0 if IPX |
| 348 | # addresses were found and unconfigured. It returns 1, otherwise. |
| 349 | # |
| 350 | ipx_down() |
| 351 | { |
| 352 | [ -z "$1" ] && return 1 |
| 353 | _ifs="^" |
| 354 | _ret=1 |
| 355 | |
| 356 | ipxList="`ifconfig $1 | grep 'ipx ' | tr "\n" "$_ifs"`" |
| 357 | |
| 358 | oldifs="$IFS" |
| 359 | IFS="$_ifs" |
| 360 | for _ipx in $ipxList ; do |
| 361 | # get rid of extraneous line |
| 362 | [ -z "$_ipx" ] && break |
| 363 | |
| 364 | _ipx=`expr "$_ipx" : '.*\(ipx [0-9a-h]\{1,8\}H*\.[0-9a-h]\{1,12\}\).*'` |
| 365 | |
| 366 | IFS="$oldifs" |
| 367 | ifconfig $1 ${_ipx} delete |
| 368 | IFS="$_ifs" |
| 369 | _ret=0 |
| 370 | done |
| 371 | IFS="$oldifs" |
| 372 | |
| 373 | return $_ret |
| 374 | } |
| 375 | |
| 376 | # ifnet_rename |
| 377 | # Rename all requested interfaces. |
| 378 | # |
| 379 | ifnet_rename() |
| 380 | { |
| 381 | |
| 382 | _ifn_list="`ifconfig -l`" |
| 383 | [ -z "$_ifn_list" ] && return 0 |
| 384 | for _if in ${_ifn_list} ; do |
| 385 | eval _ifname=\$ifconfig_${_if}_name |
| 386 | if [ ! -z "$_ifname" ]; then |
| 387 | ifconfig $_if name $_ifname |
| 388 | fi |
| 389 | done |
| 390 | return 0 |
| 391 | } |
| 392 | |
| 393 | # |
| 394 | # list_net_interfaces type |
| 395 | # List all network interfaces. The type of interface returned |
| 396 | # can be controlled by the type argument. The type |
| 397 | # argument can be any of the following: |
| 398 | # nodhcp - all interfaces, excluding DHCP configured interfaces |
| 399 | # dhcp - list only DHCP configured interfaces |
| 400 | # If no argument is specified all network interfaces are output. |
| 401 | # Note that the list will include cloned interfaces if applicable. |
| 402 | # Cloned interfaces must already exist to have a chance to appear |
| 403 | # in the list if ${network_interfaces} is set to `auto'. |
| 404 | # |
| 405 | list_net_interfaces() |
| 406 | { |
| 407 | type=$1 |
| 408 | |
| 409 | # Get a list of ALL the interfaces. NOTE: cloned interfaces |
| 410 | # have already been configured so they should show up in the |
| 411 | # ifconfig -l output. |
| 412 | # |
| 413 | case ${network_interfaces} in |
| 414 | [Aa][Uu][Tt][Oo]) |
| 415 | _autolist="`ifconfig -l`" |
| 416 | _lo= |
| 417 | for _if in ${_autolist} ; do |
| 418 | if [ "$_if" = "lo0" ]; then |
| 419 | _lo="lo0" |
| 420 | else |
| 421 | _tmplist="${_tmplist} ${_if}" |
| 422 | fi |
| 423 | done |
| 424 | _tmplist="${_lo} ${_tmplist}" |
| 425 | ;; |
| 426 | *) |
| 427 | _tmplist="${network_interfaces} ${cloned_interfaces}" |
| 428 | ;; |
| 429 | esac |
| 430 | |
| 431 | if [ -z "$type" ]; then |
| 432 | echo $_tmplist |
| 433 | return 0 |
| 434 | fi |
| 435 | |
| 436 | # Separate out dhcp and non-dhcp interfaces |
| 437 | # |
| 438 | _aprefix= |
| 439 | _bprefix= |
| 440 | for _if in ${_tmplist} ; do |
| 441 | eval _ifarg="\$ifconfig_${_if}" |
| 442 | case "$_ifarg" in |
| 443 | [Dd][Hh][Cc][Pp]) |
| 444 | _dhcplist="${_dhcplist}${_aprefix}${_if}" |
| 445 | [ -z "$_aprefix" ] && _aprefix=' ' |
| 446 | ;; |
| 447 | ''|*) |
| 448 | _nodhcplist="${_nodhcplist}${_bprefix}${_if}" |
| 449 | [ -z "$_bprefix" ] && _bprefix=' ' |
| 450 | ;; |
| 451 | esac |
| 452 | done |
| 453 | |
| 454 | case "$type" in |
| 455 | nodhcp) |
| 456 | echo $_nodhcplist |
| 457 | ;; |
| 458 | dhcp) |
| 459 | echo $_dhcplist |
| 460 | ;; |
| 461 | esac |
| 462 | return 0 |
| 463 | } |
| 464 | |
| 465 | hexdigit() |
| 466 | { |
| 467 | if [ $1 -lt 10 ]; then |
| 468 | echo $1 |
| 469 | else |
| 470 | case $1 in |
| 471 | 10) echo a ;; |
| 472 | 11) echo b ;; |
| 473 | 12) echo c ;; |
| 474 | 13) echo d ;; |
| 475 | 14) echo e ;; |
| 476 | 15) echo f ;; |
| 477 | esac |
| 478 | fi |
| 479 | } |
| 480 | |
| 481 | hexprint() |
| 482 | { |
| 483 | val=$1 |
| 484 | str='' |
| 485 | |
| 486 | dig=`hexdigit $((${val} & 15))` |
| 487 | str=${dig}${str} |
| 488 | val=$((${val} >> 4)) |
| 489 | while [ ${val} -gt 0 ]; do |
| 490 | dig=`hexdigit $((${val} & 15))` |
| 491 | str=${dig}${str} |
| 492 | val=$((${val} >> 4)) |
| 493 | done |
| 494 | |
| 495 | echo ${str} |
| 496 | } |
| 497 | |
| 498 | # Setup the interfaces for IPv6 |
| 499 | network6_interface_setup() |
| 500 | { |
| 501 | interfaces=$* |
| 502 | rtsol_interfaces='' |
| 503 | case ${ipv6_gateway_enable} in |
| 504 | [Yy][Ee][Ss]) |
| 505 | rtsol_available=no |
| 506 | ;; |
| 507 | *) |
| 508 | rtsol_available=yes |
| 509 | ;; |
| 510 | esac |
| 511 | for i in $interfaces; do |
| 512 | rtsol_interface=yes |
| 513 | eval prefix=\$ipv6_prefix_$i |
| 514 | if [ -n "${prefix}" ]; then |
| 515 | rtsol_available=no |
| 516 | rtsol_interface=no |
| 517 | laddr=`network6_getladdr $i` |
| 518 | hostid=`expr "${laddr}" : 'fe80::\(.*\)%\(.*\)'` |
| 519 | for j in ${prefix}; do |
| 520 | address=$j\:${hostid} |
| 521 | ifconfig $i inet6 ${address} prefixlen 64 alias |
| 522 | |
| 523 | case ${ipv6_gateway_enable} in |
| 524 | [Yy][Ee][Ss]) |
| 525 | # subnet-router anycast address |
| 526 | # (rfc2373) |
| 527 | ifconfig $i inet6 $j:: prefixlen 64 \ |
| 528 | alias anycast |
| 529 | ;; |
| 530 | esac |
| 531 | done |
| 532 | fi |
| 533 | eval ipv6_ifconfig=\$ipv6_ifconfig_$i |
| 534 | if [ -n "${ipv6_ifconfig}" ]; then |
| 535 | rtsol_available=no |
| 536 | rtsol_interface=no |
| 537 | ifconfig $i inet6 ${ipv6_ifconfig} alias |
| 538 | fi |
| 539 | |
| 540 | if [ ${rtsol_available} = yes -a ${rtsol_interface} = yes ] |
| 541 | then |
| 542 | case ${i} in |
| 543 | lo0|gif[0-9]*|stf[0-9]*|faith[0-9]*|lp[0-9]*|sl[0-9]*|tun[0-9]*) |
| 544 | ;; |
| 545 | *) |
| 546 | rtsol_interfaces="${rtsol_interfaces} ${i}" |
| 547 | ;; |
| 548 | esac |
| 549 | else |
| 550 | ifconfig $i inet6 |
| 551 | fi |
| 552 | done |
| 553 | |
| 554 | if [ ${rtsol_available} = yes -a -n "${rtsol_interfaces}" ]; then |
| 555 | # Act as endhost - automatically configured. |
| 556 | # You can configure only single interface, as |
| 557 | # specification assumes that autoconfigured host has |
| 558 | # single interface only. |
| 559 | sysctl net.inet6.ip6.accept_rtadv=1 |
| 560 | set ${rtsol_interfaces} |
| 561 | ifconfig $1 up |
| 562 | rtsol $1 |
| 563 | fi |
| 564 | |
| 565 | for i in $interfaces; do |
| 566 | alias=0 |
| 567 | while : ; do |
| 568 | eval ipv6_ifconfig=\$ipv6_ifconfig_${i}_alias${alias} |
| 569 | if [ -z "${ipv6_ifconfig}" ]; then |
| 570 | break; |
| 571 | fi |
| 572 | ifconfig $i inet6 ${ipv6_ifconfig} alias |
| 573 | alias=$((${alias} + 1)) |
| 574 | done |
| 575 | done |
| 576 | } |
| 577 | |
| 578 | # Setup IPv6 to IPv4 mapping |
| 579 | network6_stf_setup() |
| 580 | { |
| 581 | case ${stf_interface_ipv4addr} in |
| 582 | [Nn][Oo] | '') |
| 583 | ;; |
| 584 | *) |
| 585 | # assign IPv6 addr and interface route for 6to4 interface |
| 586 | stf_prefixlen=$((16+${stf_interface_ipv4plen:-0})) |
| 587 | OIFS="$IFS" |
| 588 | IFS=".$IFS" |
| 589 | set ${stf_interface_ipv4addr} |
| 590 | IFS="$OIFS" |
| 591 | hexfrag1=`hexprint $(($1*256 + $2))` |
| 592 | hexfrag2=`hexprint $(($3*256 + $4))` |
| 593 | ipv4_in_hexformat="${hexfrag1}:${hexfrag2}" |
| 594 | case ${stf_interface_ipv6_ifid} in |
| 595 | [Aa][Uu][Tt][Oo] | '') |
| 596 | for i in ${ipv6_network_interfaces}; do |
| 597 | laddr=`network6_getladdr ${i}` |
| 598 | case ${laddr} in |
| 599 | '') |
| 600 | ;; |
| 601 | *) |
| 602 | break |
| 603 | ;; |
| 604 | esac |
| 605 | done |
| 606 | stf_interface_ipv6_ifid=`expr "${laddr}" : \ |
| 607 | 'fe80::\(.*\)%\(.*\)'` |
| 608 | case ${stf_interface_ipv6_ifid} in |
| 609 | '') |
| 610 | stf_interface_ipv6_ifid=0:0:0:1 |
| 611 | ;; |
| 612 | esac |
| 613 | ;; |
| 614 | esac |
| 615 | ifconfig stf0 create >/dev/null 2>&1 |
| 616 | ifconfig stf0 inet6 2002:${ipv4_in_hexformat}:${stf_interface_ipv6_slaid:-0}:${stf_interface_ipv6_ifid} \ |
| 617 | prefixlen ${stf_prefixlen} |
| 618 | # disallow packets to malicious 6to4 prefix |
| 619 | route add -inet6 2002:e000:: -prefixlen 20 ::1 -reject |
| 620 | route add -inet6 2002:7f00:: -prefixlen 24 ::1 -reject |
| 621 | route add -inet6 2002:0000:: -prefixlen 24 ::1 -reject |
| 622 | route add -inet6 2002:ff00:: -prefixlen 24 ::1 -reject |
| 623 | ;; |
| 624 | esac |
| 625 | } |
| 626 | |
| 627 | # Setup static routes |
| 628 | network6_static_routes_setup() |
| 629 | { |
| 630 | # Set up any static routes. |
| 631 | case ${ipv6_defaultrouter} in |
| 632 | [Nn][Oo] | '') |
| 633 | ;; |
| 634 | *) |
| 635 | ipv6_static_routes="default ${ipv6_static_routes}" |
| 636 | ipv6_route_default="default ${ipv6_defaultrouter}" |
| 637 | ;; |
| 638 | esac |
| 639 | case ${ipv6_static_routes} in |
| 640 | [Nn][Oo] | '') |
| 641 | ;; |
| 642 | *) |
| 643 | for i in ${ipv6_static_routes}; do |
| 644 | eval ipv6_route_args=\$ipv6_route_${i} |
| 645 | route add -inet6 ${ipv6_route_args} |
| 646 | done |
| 647 | ;; |
| 648 | esac |
| 649 | } |
| 650 | |
| 651 | # Setup faith |
| 652 | network6_faith_setup() |
| 653 | { |
| 654 | case ${ipv6_faith_prefix} in |
| 655 | [Nn][Oo] | '') |
| 656 | ;; |
| 657 | *) |
| 658 | sysctl net.inet6.ip6.keepfaith=1 |
| 659 | ifconfig faith0 create >/dev/null 2>&1 |
| 660 | ifconfig faith0 up |
| 661 | for prefix in ${ipv6_faith_prefix}; do |
| 662 | prefixlen=`expr "${prefix}" : ".*/\(.*\)"` |
| 663 | case ${prefixlen} in |
| 664 | '') |
| 665 | prefixlen=96 |
| 666 | ;; |
| 667 | *) |
| 668 | prefix=`expr "${prefix}" : \ |
| 669 | "\(.*\)/${prefixlen}"` |
| 670 | ;; |
| 671 | esac |
| 672 | route add -inet6 ${prefix} -prefixlen ${prefixlen} ::1 |
| 673 | route change -inet6 ${prefix} -prefixlen ${prefixlen} \ |
| 674 | -ifp faith0 |
| 675 | done |
| 676 | ;; |
| 677 | esac |
| 678 | } |
| 679 | |
| 680 | # Install the "default interface" to kernel, which will be used |
| 681 | # as the default route when there's no router. |
| 682 | network6_default_interface_setup() |
| 683 | { |
| 684 | # Choose IPv6 default interface if it is not clearly specified. |
| 685 | case ${ipv6_default_interface} in |
| 686 | '') |
| 687 | for i in ${ipv6_network_interfaces}; do |
| 688 | case $i in |
| 689 | lo0|faith[0-9]*) |
| 690 | continue |
| 691 | ;; |
| 692 | esac |
| 693 | laddr=`network6_getladdr $i exclude_tentative` |
| 694 | case ${laddr} in |
| 695 | '') |
| 696 | ;; |
| 697 | *) |
| 698 | ipv6_default_interface=$i |
| 699 | break |
| 700 | ;; |
| 701 | esac |
| 702 | done |
| 703 | ;; |
| 704 | esac |
| 705 | |
| 706 | # Disallow unicast packets without outgoing scope identifiers, |
| 707 | # or route such packets to a "default" interface, if it is specified. |
| 708 | route add -inet6 fe80:: -prefixlen 10 ::1 -reject |
| 709 | case ${ipv6_default_interface} in |
| 710 | [Nn][Oo] | '') |
| 711 | route add -inet6 ff02:: -prefixlen 16 ::1 -reject |
| 712 | ;; |
| 713 | *) |
| 714 | laddr=`network6_getladdr ${ipv6_default_interface}` |
| 715 | route add -inet6 ff02:: ${laddr} -prefixlen 16 -interface \ |
| 716 | -cloning |
| 717 | |
| 718 | # Disable installing the default interface with the |
| 719 | # case net.inet6.ip6.forwarding=0 and |
| 720 | # net.inet6.ip6.accept_rtadv=0, due to avoid conflict |
| 721 | # between the default router list and the manual |
| 722 | # configured default route. |
| 723 | case ${ipv6_gateway_enable} in |
| 724 | [Yy][Ee][Ss]) |
| 725 | ;; |
| 726 | *) |
| 727 | if [ `sysctl -n net.inet6.ip6.accept_rtadv` -eq 1 ] |
| 728 | then |
| 729 | ndp -I ${ipv6_default_interface} |
| 730 | fi |
| 731 | ;; |
| 732 | esac |
| 733 | ;; |
| 734 | esac |
| 735 | } |
| 736 | |
| 737 | network6_getladdr() |
| 738 | { |
| 739 | ifconfig $1 2>/dev/null | while read proto addr rest; do |
| 740 | case ${proto} in |
| 741 | inet6) |
| 742 | case ${addr} in |
| 743 | fe80::*) |
| 744 | if [ -z "$2" ]; then |
| 745 | echo ${addr} |
| 746 | return |
| 747 | fi |
| 748 | case ${rest} in |
| 749 | *tentative*) |
| 750 | continue |
| 751 | ;; |
| 752 | *) |
| 753 | echo ${addr} |
| 754 | return |
| 755 | esac |
| 756 | esac |
| 757 | esac |
| 758 | done |
| 759 | } |