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: head/etc/network.subr 152441 2005-11-14 23:34:50Z brooks $
|
| 25# $FreeBSD: head/etc/network.subr 157706 2006-04-13 06:50:46Z brooks $ |
26#
27
28#
29# Subroutines commonly used from network startup scripts.
30# Requires that rc.conf be loaded first.
31#
32
33# ifconfig_up if
34# Evaluate ifconfig(8) arguments for interface $if and
35# run ifconfig(8) with those arguments. It returns 0 if
36# arguments were found and executed or 1 if the interface
37# had no arguments. Pseudo arguments DHCP and WPA are handled
38# here.
39#
40ifconfig_up()
41{
42 _cfg=1
43
44 ifconfig_args=`ifconfig_getargs $1`
45 if [ -n "${ifconfig_args}" ]; then
46 ifconfig $1 up
|
47 eval "ifconfig $1 ${ifconfig_args}"
|
| 47 ifconfig $1 ${ifconfig_args} |
48 _cfg=0
49 fi
50
51 if wpaif $1; then
52 if [ $_cfg -ne 0 ] ; then
53 ifconfig $1 up
54 fi
55 /etc/rc.d/wpa_supplicant start $1
56 _cfg=0 # XXX: not sure this should count
57 fi
58
59 if dhcpif $1; then
60 if [ $_cfg -ne 0 ] ; then
61 ifconfig $1 up
62 fi
|
63 /etc/rc.d/dhclient start $1
|
63 if syncdhcpif $1; then
64 /etc/rc.d/dhclient start $1
65 fi |
66 _cfg=0
67 fi
68
69 return $_cfg
70}
71
72# ifconfig_down if
73# Remove all inet entries from the $if interface. It returns
74# 0 if inet entries were found and removed. It returns 1 if
75# no entries were found or they could not be removed.
76#
|
77# XXX: should not be only inet
78# |
79ifconfig_down()
80{
81 [ -z "$1" ] && return 1
82 _ifs="^"
83 _cfg=1
84
85 inetList="`ifconfig $1 | grep 'inet ' | tr "\n" "$_ifs"`"
86
87 oldifs="$IFS"
88 IFS="$_ifs"
89 for _inet in $inetList ; do
90 # get rid of extraneous line
91 [ -z "$_inet" ] && break
92
93 _inet=`expr "$_inet" : '.*\(inet \([0-9]\{1,3\}\.\)\{3\}[0-9]\{1,3\}\).*'`
94
95 IFS="$oldifs"
96 ifconfig $1 ${_inet} delete
97 IFS="$_ifs"
98 _cfg=0
99 done
100 IFS="$oldifs"
101
102 if wpaif $1; then
103 /etc/rc.d/wpa_supplicant stop $1
104 _cfg=0
105 fi
106
107 if dhcpif $1; then
108 /etc/rc.d/dhclient stop $1
109 _cfg=0
110 fi
111
|
112 ifconfig $1 down
113 |
114 return $_cfg
115}
116
|
117# get_if_var if var [default]
118# Return the value of the pseudo-hash corresponding to $if where
119# $var is a string containg the sub-string "IF" which will be
120# replaced with $if after the characters defined in _punct are
121# replaced with '_'. If the variable is unset, replace it with
122# $default if given.
123get_if_var()
124{
125 if [ $# -ne 2 -a $# -ne 3 ]; then
126 err 3 'USAGE: get_if_var name var [default]'
127 fi
128
129 _if=$1
130 _punct=". - / +"
131 for _punct_c in $punct; do
132 _if=`ltr ${_if} ${_punct_c} '_'`
133 done
134 _var=$2
135 _default=$3
136
137 prefix=${_var%%IF*}
138 suffix=${_var##*IF}
139 eval echo \${${prefix}${_if}${suffix}-${_default}}
140}
141 |
142# _ifconfig_getargs if
143# Echos the arguments for the supplied interface to stdout.
144# returns 1 if empty. In general, ifconfig_getargs should be used
145# outside this file.
146_ifconfig_getargs()
147{
148 _ifn=$1
149 if [ -z "$_ifn" ]; then
150 return 1
151 fi
152
|
122 eval _args=\${ifconfig_$1-$ifconfig_DEFAULT}
123
124 echo "$_args"
|
| 153 get_if_var $_ifn ifconfig_IF "$ifconfig_DEFAULT" |
154}
155
156# ifconfig_getargs if
157# Takes the result from _ifconfig_getargs and removes pseudo
158# args such as DHCP and WPA.
159ifconfig_getargs()
160{
161 _tmpargs=`_ifconfig_getargs $1`
162 if [ $? -eq 1 ]; then
163 return 1
164 fi
165 _args=
166
167 for _arg in $_tmpargs; do
168 case $_arg in
|
140 [Dd][Hh][Cc][Pp])
141 ;;
142 [Nn][Oo][Aa][Uu][Tt][Oo])
143 ;;
144 [Ww][Pp][Aa])
145 ;;
|
169 [Dd][Hh][Cc][Pp]) ;;
170 [Nn][Oo][Aa][Uu][Tt][Oo]) ;;
171 [Nn][Oo][Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp]) ;;
172 [Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp]) ;;
173 [Ww][Pp][Aa]) ;; |
174 *)
175 _args="$_args $_arg"
176 ;;
177 esac
178 done
179
180 echo $_args
181}
182
183# autoif
184# Returns 0 if the interface should be automaticly configured at
185# boot time and 1 otherwise.
186autoif()
187{
188 _tmpargs=`_ifconfig_getargs $1`
189 for _arg in $_tmpargs; do
190 case $_arg in
191 [Nn][Oo][Aa][Uu][Tt][Oo])
192 return 1
193 ;;
194 esac
195 done
196 return 0
197}
198
199# dhcpif if
200# Returns 0 if the interface is a DHCP interface and 1 otherwise.
201dhcpif()
202{
203 _tmpargs=`_ifconfig_getargs $1`
204 for _arg in $_tmpargs; do
205 case $_arg in
206 [Dd][Hh][Cc][Pp])
207 return 0
208 ;;
|
209 [Nn][Oo][Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp])
210 return 0
211 ;;
212 [Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp])
213 return 0
214 ;; |
215 esac
216 done
217 return 1
218}
219
|
220# syncdhcpif
221# Returns 0 if the interface should be configured synchronously and
222# 1 otherwise.
223syncdhcpif()
224{
225 _tmpargs=`_ifconfig_getargs $1`
226 for _arg in $_tmpargs; do
227 case $_arg in
228 [Nn][Oo][Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp])
229 return 1
230 ;;
231 [Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp])
232 return 0
233 ;;
234 esac
235 done
236 if checkyesno syncronous_dhclient; then
237 return 0
238 else
239 return 1
240 fi
241}
242 |
243# wpaif if
244# Returns 0 if the interface is a WPA interface and 1 otherwise.
245wpaif()
246{
247 _tmpargs=`_ifconfig_getargs $1`
248 for _arg in $_tmpargs; do
249 case $_arg in
250 [Ww][Pp][Aa])
251 return 0
252 ;;
253 esac
254 done
255 return 1
256}
257
258# ipv4_up if
259# add IPv4 addresses to the interface $if
260ipv4_up()
261{
262 _if=$1
263 ifalias_up ${_if}
264 ipv4_addrs_common ${_if} alias
265}
266
267# ipv4_down if
268# remove IPv4 addresses from the interface $if
269ipv4_down()
270{
271 _if=$1
272 ifalias_down ${_if}
273 ipv4_addrs_common ${_if} -alias
274}
275
276# ipv4_addrs_common if action
277# Evaluate the ifconfig_if_ipv4 arguments for interface $if
278# and use $action to add or remove IPv4 addresses from $if.
279ipv4_addrs_common()
280{
281 _ret=1
282 _if=$1
283 _action=$2
284
285 # get ipv4-addresses
|
229 eval cidr_addr=\${ipv4_addrs_${_if}}
|
| 286 cidr_addr=`get_if_var $_if ipv4_addrs_IF` |
287
288 for _cidr in ${cidr_addr}; do
289 _ipaddr=${_cidr%%/*}
290 _netmask="/"${_cidr##*/}
291 _range=${_ipaddr##*.}
292 _ipnet=${_ipaddr%.*}
293 _iplow=${_range%-*}
294 _iphigh=${_range#*-}
295
296 # clear netmask when removing aliases
297 if [ "${_action}" = "-alias" ]; then
298 _netmask=""
299 fi
300
301 _ipcount=${_iplow}
302 while [ "${_ipcount}" -le "${_iphigh}" ]; do
303 eval "ifconfig ${_if} ${_action} ${_ipnet}.${_ipcount}${_netmask}"
304 _ipcount=$((${_ipcount}+1))
305 _ret=0
306
307 # only the first ipaddr in a subnet need the real netmask
308 if [ "${_action}" != "-alias" ]; then
309 _netmask="/32"
310 fi
311 done
312 done
313 return $_ret
314}
315
316# ifalias_up if
317# Configure aliases for network interface $if.
318# It returns 0 if at least one alias was configured or
319# 1 if there were none.
320#
321ifalias_up()
322{
323 _ret=1
324 alias=0
325 while : ; do
|
269 eval ifconfig_args=\$ifconfig_$1_alias${alias}
|
| 326 ifconfig_args=`get_if_var $1 ifconfig_IF_alias${alias}` |
327 if [ -n "${ifconfig_args}" ]; then
328 ifconfig $1 ${ifconfig_args} alias
329 alias=$((${alias} + 1))
330 _ret=0
331 else
332 break
333 fi
334 done
335 return $_ret
336}
337
338#ifalias_down if
339# Remove aliases for network interface $if.
340# It returns 0 if at least one alias was removed or
341# 1 if there were none.
342#
343ifalias_down()
344{
345 _ret=1
346 alias=0
347 while : ; do
|
291 eval ifconfig_args=\$ifconfig_$1_alias${alias}
|
| 348 ifconfig_args=`get_if_var $1 ifconfig_IF_alias${alias}` |
349 if [ -n "${ifconfig_args}" ]; then
350 ifconfig $1 ${ifconfig_args} -alias
351 alias=$((${alias} + 1))
352 _ret=0
353 else
354 break
355 fi
356 done
357 return $_ret
358}
359
360# ifscript_up if
361# Evaluate a startup script for the $if interface.
362# It returns 0 if a script was found and processed or
363# 1 if no script was found.
364#
365ifscript_up()
366{
367 if [ -r /etc/start_if.$1 ]; then
368 . /etc/start_if.$1
369 return 0
370 fi
371 return 1
372}
373
374# ifscript_down if
375# Evaluate a shutdown script for the $if interface.
376# It returns 0 if a script was found and processed or
377# 1 if no script was found.
378#
379ifscript_down()
380{
381 if [ -r /etc/stop_if.$1 ]; then
382 . /etc/stop_if.$1
383 return 0
384 fi
385 return 1
386}
387
388# Create cloneable interfaces.
389#
390clone_up()
391{
392 _prefix=
393 _list=
394 for ifn in ${cloned_interfaces}; do
395 ifconfig ${ifn} create
396 if [ $? -eq 0 ]; then
397 _list="${_list}${_prefix}${ifn}"
398 [ -z "$_prefix" ] && _prefix=' '
399 fi
400 done
401 debug "Cloned: ${_list}"
402}
403
404# Destroy cloned interfaces. Destroyed interfaces are echoed
405# to standard output.
406#
407clone_down()
408{
409 _prefix=
410 _list=
411 for ifn in ${cloned_interfaces}; do
412 ifconfig ${ifn} destroy
413 if [ $? -eq 0 ]; then
414 _list="${_list}${_prefix}${ifn}"
415 [ -z "$_prefix" ] && _prefix=' '
416 fi
417 done
418 debug "Destroyed clones: ${_list}"
419}
420
421gif_up() {
422 case ${gif_interfaces} in
423 [Nn][Oo] | '')
424 ;;
425 *)
426 for i in ${gif_interfaces}; do
|
370 eval peers=\$gifconfig_$i
|
| 427 peers=`get_if_var $i gifconfig_IF` |
428 case ${peers} in
429 '')
430 continue
431 ;;
432 *)
433 ifconfig $i create >/dev/null 2>&1
434 ifconfig $i tunnel ${peers}
435 ifconfig $i up
436 ;;
437 esac
438 done
439 ;;
440 esac
441}
442
443#
444# ipx_up ifn
445# Configure any IPX addresses for interface $ifn. Returns 0 if IPX
446# arguments were found and configured; returns 1 otherwise.
447#
448ipx_up()
449{
450 ifn="$1"
|
394 eval ifconfig_args=\$ifconfig_${ifn}_ipx
|
| 451 ifconfig_args=`get_if_var $ifn ifconfig_IF_ipx` |
452 if [ -n "${ifconfig_args}" ]; then
453 ifconfig ${ifn} ${ifconfig_args}
454 return 0
455 fi
456 return 1
457}
458
459# ipx_down ifn
460# Remove IPX addresses for interface $ifn. Returns 0 if IPX
461# addresses were found and unconfigured. It returns 1, otherwise.
462#
463ipx_down()
464{
465 [ -z "$1" ] && return 1
466 _ifs="^"
467 _ret=1
468
469 ipxList="`ifconfig $1 | grep 'ipx ' | tr "\n" "$_ifs"`"
470
471 oldifs="$IFS"
472 IFS="$_ifs"
473 for _ipx in $ipxList ; do
474 # get rid of extraneous line
475 [ -z "$_ipx" ] && break
476
477 _ipx=`expr "$_ipx" : '.*\(ipx [0-9a-h]\{1,8\}H*\.[0-9a-h]\{1,12\}\).*'`
478
479 IFS="$oldifs"
480 ifconfig $1 ${_ipx} delete
481 IFS="$_ifs"
482 _ret=0
483 done
484 IFS="$oldifs"
485
486 return $_ret
487}
488
489# ifnet_rename
490# Rename all requested interfaces.
491#
492ifnet_rename()
493{
494
495 _ifn_list="`ifconfig -l`"
496 [ -z "$_ifn_list" ] && return 0
497 for _if in ${_ifn_list} ; do
|
441 eval _ifname=\$ifconfig_${_if}_name
|
| 498 _ifname=`get_if_var $_if ifconfig_IF_name` |
499 if [ ! -z "$_ifname" ]; then
500 ifconfig $_if name $_ifname
501 fi
502 done
503 return 0
504}
505
506#
507# list_net_interfaces type
508# List all network interfaces. The type of interface returned
509# can be controlled by the type argument. The type
510# argument can be any of the following:
511# nodhcp - all interfaces, excluding DHCP configured interfaces
512# dhcp - list only DHCP configured interfaces
513# If no argument is specified all network interfaces are output.
514# Note that the list will include cloned interfaces if applicable.
515# Cloned interfaces must already exist to have a chance to appear
516# in the list if ${network_interfaces} is set to `auto'.
517#
518list_net_interfaces()
519{
520 type=$1
521
522 # Get a list of ALL the interfaces and make lo0 first if it's there.
523 #
524 case ${network_interfaces} in
525 [Aa][Uu][Tt][Oo])
526 _prefix=''
527 _autolist="`ifconfig -l`"
528 _lo=
529 for _if in ${_autolist} ; do
530 if autoif $_if; then
531 if [ "$_if" = "lo0" ]; then
532 _lo="lo0 "
533 else
534 _tmplist="${_tmplist}${_prefix}${_if}"
535 [ -z "$_prefix" ] && _prefix=' '
536 fi
537 fi
538 done
539 _tmplist="${_lo}${_tmplist}"
540 ;;
541 *)
542 _tmplist="${network_interfaces} ${cloned_interfaces}"
543 ;;
544 esac
545
546 if [ -z "$type" ]; then
547 echo $_tmplist
548 return 0
549 fi
550
551 # Separate out dhcp and non-dhcp interfaces
552 #
553 _aprefix=
554 _bprefix=
555 for _if in ${_tmplist} ; do
556 if dhcpif $_if; then
557 _dhcplist="${_dhcplist}${_aprefix}${_if}"
558 [ -z "$_aprefix" ] && _aprefix=' '
|
502 elif [ -n "`_ifconfig_getargs $if`" ]; then
|
| 559 elif [ -n "`_ifconfig_getargs $_if`" ]; then |
560 _nodhcplist="${_nodhcplist}${_bprefix}${_if}"
561 [ -z "$_bprefix" ] && _bprefix=' '
562 fi
563 done
564
565 case "$type" in
566 nodhcp)
567 echo $_nodhcplist
568 ;;
569 dhcp)
570 echo $_dhcplist
571 ;;
572 esac
573 return 0
574}
575
576hexdigit()
577{
578 if [ $1 -lt 10 ]; then
579 echo $1
580 else
581 case $1 in
582 10) echo a ;;
583 11) echo b ;;
584 12) echo c ;;
585 13) echo d ;;
586 14) echo e ;;
587 15) echo f ;;
588 esac
589 fi
590}
591
592hexprint()
593{
594 val=$1
595 str=''
596
597 dig=`hexdigit $((${val} & 15))`
598 str=${dig}${str}
599 val=$((${val} >> 4))
600 while [ ${val} -gt 0 ]; do
601 dig=`hexdigit $((${val} & 15))`
602 str=${dig}${str}
603 val=$((${val} >> 4))
604 done
605
606 echo ${str}
607}
608
609# Setup the interfaces for IPv6
610network6_interface_setup()
611{
612 interfaces=$*
613 rtsol_interfaces=''
614 case ${ipv6_gateway_enable} in
615 [Yy][Ee][Ss])
616 rtsol_available=no
617 ;;
618 *)
619 rtsol_available=yes
620 ;;
621 esac
622 for i in $interfaces; do
623 rtsol_interface=yes
|
567 eval prefix=\$ipv6_prefix_$i
|
| 624 prefix=`get_if_var $i ipv6_prefix_IF` |
625 if [ -n "${prefix}" ]; then
626 rtsol_available=no
627 rtsol_interface=no
628 laddr=`network6_getladdr $i`
629 hostid=`expr "${laddr}" : 'fe80::\(.*\)%\(.*\)'`
630 for j in ${prefix}; do
631 address=$j\:${hostid}
632 ifconfig $i inet6 ${address} prefixlen 64 alias
633
634 case ${ipv6_gateway_enable} in
635 [Yy][Ee][Ss])
636 # subnet-router anycast address
637 # (rfc2373)
638 ifconfig $i inet6 $j:: prefixlen 64 \
639 alias anycast
640 ;;
641 esac
642 done
643 fi
|
587 eval ipv6_ifconfig=\$ipv6_ifconfig_$i
|
| 644 ipv6_ifconfig=`get_if_var $i ipv6_ifconfig_IF` |
645 if [ -n "${ipv6_ifconfig}" ]; then
646 rtsol_available=no
647 rtsol_interface=no
648 ifconfig $i inet6 ${ipv6_ifconfig} alias
649 fi
650
651 if [ ${rtsol_available} = yes -a ${rtsol_interface} = yes ]
652 then
653 case ${i} in
654 lo0|gif[0-9]*|stf[0-9]*|faith[0-9]*|lp[0-9]*|sl[0-9]*|tun[0-9]*)
655 ;;
656 *)
657 rtsol_interfaces="${rtsol_interfaces} ${i}"
658 ;;
659 esac
660 else
661 ifconfig $i inet6
662 fi
663 done
664
665 if [ ${rtsol_available} = yes -a -n "${rtsol_interfaces}" ]; then
666 # Act as endhost - automatically configured.
667 # You can configure only single interface, as
668 # specification assumes that autoconfigured host has
669 # single interface only.
670 sysctl net.inet6.ip6.accept_rtadv=1
671 set ${rtsol_interfaces}
672 ifconfig $1 up
673 rtsol ${rtsol_flags} $1
674 fi
675
676 for i in $interfaces; do
677 alias=0
678 while : ; do
|
622 eval ipv6_ifconfig=\$ipv6_ifconfig_${i}_alias${alias}
|
| 679 ipv6_ifconfig=`get_if_var $i ipv6_ifconfig_IF_alias${alias}` |
680 if [ -z "${ipv6_ifconfig}" ]; then
681 break;
682 fi
683 ifconfig $i inet6 ${ipv6_ifconfig} alias
684 alias=$((${alias} + 1))
685 done
686 done
687}
688
689# Setup IPv6 to IPv4 mapping
690network6_stf_setup()
691{
692 case ${stf_interface_ipv4addr} in
693 [Nn][Oo] | '')
694 ;;
695 *)
696 # assign IPv6 addr and interface route for 6to4 interface
697 stf_prefixlen=$((16+${stf_interface_ipv4plen:-0}))
698 OIFS="$IFS"
699 IFS=".$IFS"
700 set ${stf_interface_ipv4addr}
701 IFS="$OIFS"
702 hexfrag1=`hexprint $(($1*256 + $2))`
703 hexfrag2=`hexprint $(($3*256 + $4))`
704 ipv4_in_hexformat="${hexfrag1}:${hexfrag2}"
705 case ${stf_interface_ipv6_ifid} in
706 [Aa][Uu][Tt][Oo] | '')
707 for i in ${ipv6_network_interfaces}; do
708 laddr=`network6_getladdr ${i}`
709 case ${laddr} in
710 '')
711 ;;
712 *)
713 break
714 ;;
715 esac
716 done
717 stf_interface_ipv6_ifid=`expr "${laddr}" : \
718 'fe80::\(.*\)%\(.*\)'`
719 case ${stf_interface_ipv6_ifid} in
720 '')
721 stf_interface_ipv6_ifid=0:0:0:1
722 ;;
723 esac
724 ;;
725 esac
726 ifconfig stf0 create >/dev/null 2>&1
727 ifconfig stf0 inet6 2002:${ipv4_in_hexformat}:${stf_interface_ipv6_slaid:-0}:${stf_interface_ipv6_ifid} \
728 prefixlen ${stf_prefixlen}
729 # disallow packets to malicious 6to4 prefix
730 route add -inet6 2002:e000:: -prefixlen 20 ::1 -reject
731 route add -inet6 2002:7f00:: -prefixlen 24 ::1 -reject
732 route add -inet6 2002:0000:: -prefixlen 24 ::1 -reject
733 route add -inet6 2002:ff00:: -prefixlen 24 ::1 -reject
734 ;;
735 esac
736}
737
738# Setup static routes
739network6_static_routes_setup()
740{
741 # Set up any static routes.
742 case ${ipv6_defaultrouter} in
743 [Nn][Oo] | '')
744 ;;
745 *)
746 ipv6_static_routes="default ${ipv6_static_routes}"
747 ipv6_route_default="default ${ipv6_defaultrouter}"
748 ;;
749 esac
750 case ${ipv6_static_routes} in
751 [Nn][Oo] | '')
752 ;;
753 *)
754 for i in ${ipv6_static_routes}; do
|
698 eval ipv6_route_args=\$ipv6_route_${i}
|
| 755 ipv6_route_args=`get_if_var $i ipv6_route_IF` |
756 route add -inet6 ${ipv6_route_args}
757 done
758 ;;
759 esac
760}
761
762# Setup faith
763network6_faith_setup()
764{
765 case ${ipv6_faith_prefix} in
766 [Nn][Oo] | '')
767 ;;
768 *)
769 sysctl net.inet6.ip6.keepfaith=1
770 ifconfig faith0 create >/dev/null 2>&1
771 ifconfig faith0 up
772 for prefix in ${ipv6_faith_prefix}; do
773 prefixlen=`expr "${prefix}" : ".*/\(.*\)"`
774 case ${prefixlen} in
775 '')
776 prefixlen=96
777 ;;
778 *)
779 prefix=`expr "${prefix}" : \
780 "\(.*\)/${prefixlen}"`
781 ;;
782 esac
783 route add -inet6 ${prefix} -prefixlen ${prefixlen} ::1
784 route change -inet6 ${prefix} -prefixlen ${prefixlen} \
785 -ifp faith0
786 done
787 ;;
788 esac
789}
790
791# Install the "default interface" to kernel, which will be used
792# as the default route when there's no router.
793network6_default_interface_setup()
794{
795 # Choose IPv6 default interface if it is not clearly specified.
796 case ${ipv6_default_interface} in
797 '')
798 for i in ${ipv6_network_interfaces}; do
799 case $i in
800 lo0|faith[0-9]*)
801 continue
802 ;;
803 esac
804 laddr=`network6_getladdr $i exclude_tentative`
805 case ${laddr} in
806 '')
807 ;;
808 *)
809 ipv6_default_interface=$i
810 break
811 ;;
812 esac
813 done
814 ;;
815 esac
816
817 # Disallow unicast packets without outgoing scope identifiers,
818 # or route such packets to a "default" interface, if it is specified.
819 route add -inet6 fe80:: -prefixlen 10 ::1 -reject
820 case ${ipv6_default_interface} in
821 [Nn][Oo] | '')
822 route add -inet6 ff02:: -prefixlen 16 ::1 -reject
823 ;;
824 *)
825 laddr=`network6_getladdr ${ipv6_default_interface}`
826 route add -inet6 ff02:: ${laddr} -prefixlen 16 -interface \
827 -cloning
828
829 # Disable installing the default interface with the
830 # case net.inet6.ip6.forwarding=0 and
831 # net.inet6.ip6.accept_rtadv=0, due to avoid conflict
832 # between the default router list and the manual
833 # configured default route.
834 case ${ipv6_gateway_enable} in
835 [Yy][Ee][Ss])
836 ;;
837 *)
838 if [ `sysctl -n net.inet6.ip6.accept_rtadv` -eq 1 ]
839 then
840 ndp -I ${ipv6_default_interface}
841 fi
842 ;;
843 esac
844 ;;
845 esac
846}
847
848network6_getladdr()
849{
850 ifconfig $1 2>/dev/null | while read proto addr rest; do
851 case ${proto} in
852 inet6)
853 case ${addr} in
854 fe80::*)
855 if [ -z "$2" ]; then
856 echo ${addr}
857 return
858 fi
859 case ${rest} in
860 *tentative*)
861 continue
862 ;;
863 *)
864 echo ${addr}
865 return
866 esac
867 esac
868 esac
869 done
870}
|