| blob | 2410e2d3c7bfe58a04a61ff6a9f4e009d79ca199 |
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 # $FreeBSD$
26 #
27 IFCONFIG_CMD="/sbin/ifconfig"
28 : ${netif_ipexpand_max:=2048}
30 #
31 # Subroutines commonly used from network startup scripts.
32 # Requires that rc.conf be loaded first.
33 #
35 # ifn_start ifn
36 # Bring up and configure an interface. If some configuration is
37 # applied, print the interface configuration.
38 #
39 ifn_start()
40 {
41 local ifn cfg
42 ifn="$1"
43 cfg=1
45 [ -z "$ifn" ] && err 1 "ifn_start called without an interface"
47 ifscript_up ${ifn} && cfg=0
48 ifconfig_up ${ifn} && cfg=0
49 if ! noafif $ifn; then
50 afexists inet && ipv4_up ${ifn} && cfg=0
51 afexists inet6 && ipv6_up ${ifn} && cfg=0
52 fi
53 childif_create ${ifn} && cfg=0
55 return $cfg
56 }
58 # ifn_stop ifn
59 # Shutdown and de-configure an interface. If action is taken,
60 # print the interface name.
61 #
62 ifn_stop()
63 {
64 local ifn cfg
65 ifn="$1"
66 cfg=1
68 [ -z "$ifn" ] && err 1 "ifn_stop called without an interface"
70 if ! noafif $ifn; then
71 afexists inet6 && ipv6_down ${ifn} && cfg=0
72 afexists inet && ipv4_down ${ifn} && cfg=0
73 fi
74 ifconfig_down ${ifn} && cfg=0
75 ifscript_down ${ifn} && cfg=0
76 childif_destroy ${ifn} && cfg=0
78 return $cfg
79 }
81 # ifn_vnetup ifn
82 # Move ifn to the specified vnet jail.
83 #
84 ifn_vnetup()
85 {
87 ifn_vnet0 $1 vnet
88 }
90 # ifn_vnetdown ifn
91 # Reclaim ifn from the specified vnet jail.
92 #
93 ifn_vnetdown()
94 {
96 ifn_vnet0 $1 -vnet
97 }
99 # ifn_vnet0 ifn action
100 # Helper function for ifn_vnetup and ifn_vnetdown.
101 #
102 ifn_vnet0()
103 {
104 local _ifn _cfg _action _vnet
105 _ifn="$1"
106 _action="$2"
107 _cfg=1
109 if _vnet=$(vnetif $_ifn); then
110 ${IFCONFIG_CMD} $_ifn $_action $_vnet && _cfg=0
111 fi
113 return $_cfg
114 }
116 # ifconfig_up if
117 # Evaluate ifconfig(8) arguments for interface $if and
118 # run ifconfig(8) with those arguments. It returns 0 if
119 # arguments were found and executed or 1 if the interface
120 # had no arguments. Pseudo arguments DHCP and WPA are handled
121 # here.
122 #
123 ifconfig_up()
124 {
125 local _cfg _ipv6_opts ifconfig_args
126 _cfg=1
128 # Make sure lo0 always comes up.
129 if [ "$1" = "lo0" ]; then
130 _cfg=0
131 fi
133 # inet6 specific
134 if ! noafif $1 && afexists inet6; then
135 if checkyesno ipv6_activate_all_interfaces; then
136 _ipv6_opts="-ifdisabled"
137 elif [ "$1" != "lo0" ]; then
138 _ipv6_opts="ifdisabled"
139 fi
141 # backward compatibility: $ipv6_enable
142 case $ipv6_enable in
143 [Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1)
144 case $1 in
145 bridge[0-9]*)
146 # No accept_rtadv by default on if_bridge(4)
147 # to avoid a conflict with the member
148 # interfaces.
149 ;;
150 *)
151 if ! checkyesno ipv6_gateway_enable; then
152 _ipv6_opts="${_ipv6_opts} accept_rtadv"
153 fi
154 ;;
155 esac
156 ;;
157 esac
159 case $ipv6_cpe_wanif in
160 $1)
161 _ipv6_opts="${_ipv6_opts} -no_radr accept_rtadv"
162 ;;
163 esac
165 if [ -n "${_ipv6_opts}" ]; then
166 ${IFCONFIG_CMD} $1 inet6 ${_ipv6_opts}
167 fi
168 fi
170 # ifconfig_IF
171 ifconfig_args=`ifconfig_getargs $1`
172 if [ -n "${ifconfig_args}" ]; then
173 eval ${IFCONFIG_CMD} $1 ${ifconfig_args}
174 _cfg=0
175 fi
177 # inet6 specific
178 if ! noafif $1 && afexists inet6; then
179 # ifconfig_IF_ipv6
180 ifconfig_args=`ifconfig_getargs $1 ipv6`
181 if [ -n "${ifconfig_args}" ]; then
182 # backward compatibility: inet6 keyword
183 case "${ifconfig_args}" in
184 :*|[0-9a-fA-F]*:*)
185 warn "\$ifconfig_$1_ipv6 needs leading" \
186 "\"inet6\" keyword for an IPv6 address."
187 ifconfig_args="inet6 ${ifconfig_args}"
188 ;;
189 esac
190 ${IFCONFIG_CMD} $1 inet6 -ifdisabled
191 eval ${IFCONFIG_CMD} $1 ${ifconfig_args}
192 _cfg=0
193 fi
195 # $ipv6_prefix_IF will be handled in
196 # ipv6_prefix_hostid_addr_common().
197 ifconfig_args=`get_if_var $1 ipv6_prefix_IF`
198 if [ -n "${ifconfig_args}" ]; then
199 ${IFCONFIG_CMD} $1 inet6 -ifdisabled
200 _cfg=0
201 fi
203 # backward compatibility: $ipv6_ifconfig_IF
204 ifconfig_args=`get_if_var $1 ipv6_ifconfig_IF`
205 if [ -n "${ifconfig_args}" ]; then
206 warn "\$ipv6_ifconfig_$1 is obsolete." \
207 " Use ifconfig_$1_ipv6 instead."
208 ${IFCONFIG_CMD} $1 inet6 -ifdisabled
209 eval ${IFCONFIG_CMD} $1 inet6 ${ifconfig_args}
210 _cfg=0
211 fi
212 fi
214 ifalias $1 link alias
215 ifalias $1 ether alias
217 if wpaif $1; then
218 /etc/rc.d/wpa_supplicant start $1
219 _cfg=0 # XXX: not sure this should count
220 elif hostapif $1; then
221 /etc/rc.d/hostapd start $1
222 _cfg=0
223 elif [ ${_cfg} -eq 0 ]; then
224 ${IFCONFIG_CMD} $1 up
225 fi
227 if dhcpif $1; then
228 if [ $_cfg -ne 0 ] ; then
229 ${IFCONFIG_CMD} $1 up
230 fi
231 if syncdhcpif $1; then
232 /etc/rc.d/dhclient start $1
233 fi
234 _cfg=0
235 fi
237 return $_cfg
238 }
240 # ifconfig_down if
241 # returns 1 if wpa_supplicant or dhclient was stopped or
242 # the interface exists.
243 #
244 ifconfig_down()
245 {
246 local _cfg
247 _cfg=1
249 if wpaif $1; then
250 /etc/rc.d/wpa_supplicant stop $1
251 _cfg=0
252 elif hostapif $1; then
253 /etc/rc.d/hostapd stop $1
254 _cfg=0
255 fi
257 if dhcpif $1; then
258 /etc/rc.d/dhclient stop $1
259 _cfg=0
260 fi
262 if ifexists $1; then
263 ${IFCONFIG_CMD} $1 down
264 _cfg=0
265 fi
267 return $_cfg
268 }
270 # get_if_var if var [default]
271 # Return the value of the pseudo-hash corresponding to $if where
272 # $var is a string containg the sub-string "IF" which will be
273 # replaced with $if after the characters defined in _punct are
274 # replaced with '_'. If the variable is unset, replace it with
275 # $default if given.
276 get_if_var()
277 {
278 local _if _punct _punct_c _var _default prefix suffix
280 if [ $# -ne 2 -a $# -ne 3 ]; then
281 err 3 'USAGE: get_if_var name var [default]'
282 fi
284 _if=$1
285 _punct=".-/+"
286 ltr ${_if} "${_punct}" '_' _if
287 _var=$2
288 _default=$3
290 prefix=${_var%%IF*}
291 suffix=${_var##*IF}
292 eval echo \${${prefix}${_if}${suffix}-${_default}}
293 }
295 # _ifconfig_getargs if [af]
296 # Prints the arguments for the supplied interface to stdout.
297 # Returns 1 if empty. In general, ifconfig_getargs should be used
298 # outside this file.
299 _ifconfig_getargs()
300 {
301 local _ifn _af
302 _ifn=$1
303 _af=${2+_$2}
305 if [ -z "$_ifn" ]; then
306 return 1
307 fi
309 get_if_var $_ifn ifconfig_IF$_af "$ifconfig_DEFAULT"
310 }
312 # ifconfig_getargs if [af]
313 # Takes the result from _ifconfig_getargs and removes pseudo
314 # args such as DHCP and WPA.
315 ifconfig_getargs()
316 {
317 local _tmpargs _arg _args _vnet
318 _tmpargs=`_ifconfig_getargs $1 $2`
319 if [ $? -eq 1 ]; then
320 return 1
321 fi
322 _args=
323 _vnet=0
325 for _arg in $_tmpargs; do
326 case $_arg:$_vnet in
327 [Dd][Hh][Cc][Pp]:0) ;;
328 [Nn][Oo][Aa][Uu][Tt][Oo]:0) ;;
329 [Nn][Oo][Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp]:0) ;;
330 [Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp]:0) ;;
331 [Ww][Pp][Aa]:0) ;;
332 [Hh][Oo][Ss][Tt][Aa][Pp]:0) ;;
333 vnet:0) _vnet=1 ;;
334 *:1) _vnet=0 ;;
335 *:0)
336 _args="$_args $_arg"
337 ;;
338 esac
339 done
341 echo $_args
342 }
344 # autoif
345 # Returns 0 if the interface should be automatically configured at
346 # boot time and 1 otherwise.
347 autoif()
348 {
349 local _tmpargs _arg
350 _tmpargs=`_ifconfig_getargs $1`
352 for _arg in $_tmpargs; do
353 case $_arg in
354 [Nn][Oo][Aa][Uu][Tt][Oo])
355 return 1
356 ;;
357 esac
358 done
360 return 0
361 }
363 # dhcpif if
364 # Returns 0 if the interface is a DHCP interface and 1 otherwise.
365 dhcpif()
366 {
367 local _tmpargs _arg
368 _tmpargs=`_ifconfig_getargs $1`
370 case $1 in
371 lo[0-9]*|\
372 stf[0-9]*|\
373 lp[0-9]*|\
374 sl[0-9]*)
375 return 1
376 ;;
377 esac
378 if noafif $1; then
379 return 1
380 fi
382 for _arg in $_tmpargs; do
383 case $_arg in
384 [Dd][Hh][Cc][Pp])
385 return 0
386 ;;
387 [Nn][Oo][Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp])
388 return 0
389 ;;
390 [Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp])
391 return 0
392 ;;
393 esac
394 done
396 return 1
397 }
399 # syncdhcpif
400 # Returns 0 if the interface should be configured synchronously and
401 # 1 otherwise.
402 syncdhcpif()
403 {
404 local _tmpargs _arg
405 _tmpargs=`_ifconfig_getargs $1`
407 if noafif $1; then
408 return 1
409 fi
411 for _arg in $_tmpargs; do
412 case $_arg in
413 [Nn][Oo][Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp])
414 return 1
415 ;;
416 [Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp])
417 return 0
418 ;;
419 esac
420 done
422 checkyesno synchronous_dhclient
423 }
425 # wpaif if
426 # Returns 0 if the interface is a WPA interface and 1 otherwise.
427 wpaif()
428 {
429 local _tmpargs _arg
430 _tmpargs=`_ifconfig_getargs $1`
432 for _arg in $_tmpargs; do
433 case $_arg in
434 [Ww][Pp][Aa])
435 return 0
436 ;;
437 esac
438 done
440 return 1
441 }
443 # hostapif if
444 # Returns 0 if the interface is a HOSTAP interface and 1 otherwise.
445 hostapif()
446 {
447 local _tmpargs _arg
448 _tmpargs=`_ifconfig_getargs $1`
450 for _arg in $_tmpargs; do
451 case $_arg in
452 [Hh][Oo][Ss][Tt][Aa][Pp])
453 return 0
454 ;;
455 esac
456 done
458 return 1
459 }
461 # vnetif if
462 # Returns 0 and echo jail if "vnet" keyword is specified on the
463 # interface, and 1 otherwise.
464 vnetif()
465 {
466 local _tmpargs _arg _vnet
467 _tmpargs=`_ifconfig_getargs $1`
469 _vnet=0
470 for _arg in $_tmpargs; do
471 case $_arg:$_vnet in
472 vnet:0) _vnet=1 ;;
473 *:1) echo $_arg; return 0 ;;
474 esac
475 done
477 return 1
478 }
480 # afexists af
481 # Returns 0 if the address family is enabled in the kernel
482 # 1 otherwise.
483 afexists()
484 {
485 local _af
486 _af=$1
488 case ${_af} in
489 inet|inet6)
490 check_kern_features ${_af}
491 ;;
492 atm)
493 if [ -x /sbin/atmconfig ]; then
494 /sbin/atmconfig diag list > /dev/null 2>&1
495 else
496 return 1
497 fi
498 ;;
499 link|ether)
500 return 0
501 ;;
502 *)
503 err 1 "afexists(): Unsupported address family: $_af"
504 ;;
505 esac
506 }
508 # noafif if
509 # Returns 0 if the interface has no af configuration and 1 otherwise.
510 noafif()
511 {
512 local _if
513 _if=$1
515 case $_if in
516 pflog[0-9]*|\
517 pfsync[0-9]*|\
518 usbus[0-9]*|\
519 an[0-9]*|\
520 ath[0-9]*|\
521 ipw[0-9]*|\
522 ipfw[0-9]*|\
523 iwi[0-9]*|\
524 iwn[0-9]*|\
525 ral[0-9]*|\
526 wi[0-9]*|\
527 wl[0-9]*|\
528 wpi[0-9]*)
529 return 0
530 ;;
531 esac
533 return 1
534 }
536 # ipv6if if
537 # Returns 0 if the interface should be configured for IPv6 and
538 # 1 otherwise.
539 ipv6if()
540 {
541 local _if _tmpargs i
542 _if=$1
544 if ! afexists inet6; then
545 return 1
546 fi
548 # lo0 is always IPv6-enabled
549 case $_if in
550 lo0)
551 return 0
552 ;;
553 esac
555 case "${ipv6_network_interfaces}" in
556 $_if|"$_if "*|*" $_if"|*" $_if "*|[Aa][Uu][Tt][Oo])
557 # True if $ifconfig_IF_ipv6 is defined.
558 _tmpargs=`_ifconfig_getargs $_if ipv6`
559 if [ -n "${_tmpargs}" ]; then
560 return 0
561 fi
563 # True if $ipv6_prefix_IF is defined.
564 _tmpargs=`get_if_var $_if ipv6_prefix_IF`
565 if [ -n "${_tmpargs}" ]; then
566 return 0
567 fi
569 # backward compatibility: True if $ipv6_ifconfig_IF is defined.
570 _tmpargs=`get_if_var $_if ipv6_ifconfig_IF`
571 if [ -n "${_tmpargs}" ]; then
572 return 0
573 fi
574 ;;
575 esac
577 return 1
578 }
580 # ipv6_autoconfif if
581 # Returns 0 if the interface should be configured for IPv6 with
582 # Stateless Address Configuration; 1 otherwise.
583 ipv6_autoconfif()
584 {
585 local _if _tmpargs _arg
586 _if=$1
588 case $_if in
589 lo[0-9]*|\
590 stf[0-9]*|\
591 lp[0-9]*|\
592 sl[0-9]*)
593 return 1
594 ;;
595 esac
596 if noafif $_if; then
597 return 1
598 fi
599 if ! ipv6if $_if; then
600 return 1
601 fi
602 if checkyesno ipv6_gateway_enable; then
603 return 1
604 fi
605 _tmpargs=`get_if_var $_if ipv6_prefix_IF`
606 if [ -n "${_tmpargs}" ]; then
607 return 1
608 fi
609 # backward compatibility: $ipv6_enable
610 case $ipv6_enable in
611 [Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1)
612 if checkyesno ipv6_gateway_enable; then
613 return 1
614 fi
615 case $1 in
616 bridge[0-9]*)
617 # No accept_rtadv by default on if_bridge(4)
618 # to avoid a conflict with the member
619 # interfaces.
620 return 1
621 ;;
622 *)
623 return 0
624 ;;
625 esac
626 ;;
627 esac
629 _tmpargs=`_ifconfig_getargs $_if ipv6`
630 for _arg in $_tmpargs; do
631 case $_arg in
632 accept_rtadv)
633 return 0
634 ;;
635 esac
636 done
638 # backward compatibility: $ipv6_ifconfig_IF
639 _tmpargs=`get_if_var $_if ipv6_ifconfig_IF`
640 for _arg in $_tmpargs; do
641 case $_arg in
642 accept_rtadv)
643 return 0
644 ;;
645 esac
646 done
648 return 1
649 }
651 # ifexists if
652 # Returns 0 if the interface exists and 1 otherwise.
653 ifexists()
654 {
655 [ -z "$1" ] && return 1
656 ${IFCONFIG_CMD} -n $1 > /dev/null 2>&1
657 }
659 # ipv4_up if
660 # add IPv4 addresses to the interface $if
661 ipv4_up()
662 {
663 local _if _ret
664 _if=$1
665 _ret=1
667 # Add 127.0.0.1/8 to lo0 unless otherwise specified.
668 if [ "${_if}" = "lo0" ]; then
669 ifconfig_args=`get_if_var ${_if} ifconfig_IF`
670 if [ -z "${ifconfig_args}" ]; then
671 ${IFCONFIG_CMD} ${_if} inet 127.0.0.1/8 alias
672 fi
673 fi
674 ifalias ${_if} inet alias && _ret=0
676 return $_ret
677 }
679 # ipv6_up if
680 # add IPv6 addresses to the interface $if
681 ipv6_up()
682 {
683 local _if _ret
684 _if=$1
685 _ret=1
687 if ! ipv6if $_if; then
688 return 0
689 fi
691 ifalias ${_if} inet6 alias && _ret=0
692 ipv6_prefix_hostid_addr_common ${_if} alias && _ret=0
693 ipv6_accept_rtadv_up ${_if} && _ret=0
695 return $_ret
696 }
698 # ipv4_down if
699 # remove IPv4 addresses from the interface $if
700 ipv4_down()
701 {
702 local _if _ifs _ret inetList oldifs _inet
703 _if=$1
704 _ifs="^"
705 _ret=1
707 ifalias ${_if} inet -alias && _ret=0
709 inetList="`${IFCONFIG_CMD} ${_if} | grep 'inet ' | tr "\n\t" "$_ifs"`"
711 oldifs="$IFS"
712 IFS="$_ifs"
713 for _inet in $inetList ; do
714 # get rid of extraneous line
715 case $_inet in
716 inet\ *) ;;
717 *) continue ;;
718 esac
720 _inet=`expr "$_inet" : '.*\(inet \([0-9]\{1,3\}\.\)\{3\}[0-9]\{1,3\}\).*'`
722 IFS="$oldifs"
723 ${IFCONFIG_CMD} ${_if} ${_inet} delete
724 IFS="$_ifs"
725 _ret=0
726 done
727 IFS="$oldifs"
729 return $_ret
730 }
732 # ipv6_down if
733 # remove IPv6 addresses from the interface $if
734 ipv6_down()
735 {
736 local _if _ifs _ret inetList oldifs _inet6
737 _if=$1
738 _ifs="^"
739 _ret=1
741 if ! ipv6if $_if; then
742 return 0
743 fi
745 ipv6_accept_rtadv_down ${_if} && _ret=0
746 ipv6_prefix_hostid_addr_common ${_if} -alias && _ret=0
747 ifalias ${_if} inet6 -alias && _ret=0
749 inetList="`${IFCONFIG_CMD} ${_if} | grep 'inet6 ' | tr "\n\t" "$_ifs"`"
751 oldifs="$IFS"
752 IFS="$_ifs"
753 for _inet6 in $inetList ; do
754 # get rid of extraneous line
755 case $_inet6 in
756 inet6\ *) ;;
757 *) continue ;;
758 esac
760 _inet6=`expr "$_inet6" : '.*\(inet6 \([0-9a-f:]*\)\).*'`
762 IFS="$oldifs"
763 ${IFCONFIG_CMD} ${_if} ${_inet6} -alias
764 IFS="$_ifs"
765 _ret=0
766 done
767 IFS="$oldifs"
769 return $_ret
770 }
772 # ifalias if af action
773 # Configure or remove aliases for network interface $if.
774 # It returns 0 if at least one alias was configured or
775 # removed, or 1 if there were none.
776 #
777 ifalias()
778 {
779 local _ret
780 _ret=1
782 afexists $2 || return $_ret
784 case "$2" in
785 inet|inet6|link|ether)
786 ifalias_af_common $1 $2 $3 && _ret=0
787 ;;
788 esac
790 return $_ret
791 }
793 # ifalias_expand_addr af action addr
794 # Expand address range ("N-M") specification in addr.
795 # "addr" must not include an address-family keyword.
796 # The results will include an address-family keyword.
797 #
798 ifalias_expand_addr()
799 {
800 local _af _action
802 _af=$1
803 _action=$2
804 shift 2
806 afexists $_af || return
807 ifalias_expand_addr_$_af $_action $*
808 }
810 # ifalias_expand_addr_inet action addr
811 # Helper function for ifalias_expand_addr(). Handles IPv4.
812 #
813 ifalias_expand_addr_inet()
814 {
815 local _action _arg _cidr _cidr_addr _exargs
816 local _ipaddr _plen _range _iphead _iptail _iplow _iphigh _ipcount
817 local _retstr _c
818 _action=$1
819 _arg=$2
820 shift 2
821 _exargs=$*
822 _retstr=
824 case $_action:$_arg:$_exargs in
825 *:*--*) return ;; # invalid
826 tmp:*[0-9]-[0-9]*:*) # to be expanded
827 _action="alias"
828 ;;
829 *:*[0-9]-[0-9]*:*) # to be expanded
830 ;;
831 tmp:*:*netmask*) # already expanded w/ netmask option
832 echo ${_arg%/[0-9]*} $_exargs && return
833 ;;
834 tmp:*:*) # already expanded w/o netmask option
835 echo $_arg $_exargs && return
836 ;;
837 *:*:*netmask*) # already expanded w/ netmask option
838 echo inet ${_arg%/[0-9]*} $_exargs && return
839 ;;
840 *:*:*) # already expanded w/o netmask option
841 echo inet $_arg $_exargs && return
842 ;;
843 esac
845 for _cidr in $_arg; do
846 _ipaddr=${_cidr%%/*}
847 _plen=${_cidr##*/}
848 # When subnet prefix length is not specified, use /32.
849 case $_plen in
850 $_ipaddr) _plen=32 ;; # "/" character not found
851 esac
853 OIFS=$IFS
854 IFS=. set -- $_ipaddr
855 _range=
856 _iphead=
857 _iptail=
858 for _c in $@; do
859 case $_range:$_c in
860 :[0-9]*-[0-9]*)
861 _range=$_c
862 ;;
863 :*)
864 _iphead="${_iphead}${_iphead:+.}${_c}"
865 ;;
866 *:*)
867 _iptail="${_iptail}${_iptail:+.}${_c}"
868 ;;
869 esac
870 done
871 IFS=$OIFS
872 _iplow=${_range%-*}
873 _iphigh=${_range#*-}
875 # clear netmask when removing aliases
876 if [ "$_action" = "-alias" ]; then
877 _plen=""
878 fi
880 _ipcount=$_iplow
881 while [ "$_ipcount" -le "$_iphigh" ]; do
882 _retstr="${_retstr} ${_iphead}${_iphead:+.}${_ipcount}${_iptail:+.}${_iptail}${_plen:+/}${_plen}"
883 if [ $_ipcount -gt $(($_iplow + $netif_ipexpand_max)) ]; then
884 warn "Range specification is too large (${_iphead}${_iphead:+.}${_iplow}${_iptail:+.}${_iptail}-${_iphead}${_iphead:+.}${_iphigh}${_iptail:+.}${_iptail}). ${_iphead}${_iphead:+.}${_iplow}${_iptail:+.}${_iptail}-${_iphead}${_iphead:+.}${_ipcount}${_iptail:+.}${_iptail} was processed. Increase \$netif_ipexpand_max in rc.conf."
885 break
886 else
887 _ipcount=$(($_ipcount + 1))
888 fi
889 # Forcibly set /32 for remaining aliases.
890 _plen=32
891 done
892 done
894 for _c in $_retstr; do
895 ifalias_expand_addr_inet $_action $_c $_exargs
896 done
897 }
899 # ifalias_expand_addr_inet6 action addr
900 # Helper function for ifalias_expand_addr(). Handles IPv6.
901 #
902 ifalias_expand_addr_inet6()
903 {
904 local _action _arg _cidr _cidr_addr _exargs
905 local _ipaddr _plen _ipleft _ipright _iplow _iphigh _ipcount
906 local _ipv4part
907 local _retstr _c
908 _action=$1
909 _arg=$2
910 shift 2
911 _exargs=$*
912 _retstr=
914 case $_action:$_arg:$_exargs in
915 *:*--*:*) return ;; # invalid
916 tmp:*[0-9a-zA-Z]-[0-9a-zA-Z]*:*)# to be expanded
917 _action="alias"
918 ;;
919 *:*[0-9a-zA-Z]-[0-9a-zA-Z]*:*) # to be expanded
920 ;;
921 tmp:*:*prefixlen*) # already expanded w/ prefixlen option
922 echo ${_arg%/[0-9]*} $_exargs && return
923 ;;
924 tmp:*:*) # already expanded w/o prefixlen option
925 echo $_arg $_exargs && return
926 ;;
927 *:*:*prefixlen*) # already expanded w/ prefixlen option
928 echo inet6 ${_arg%/[0-9]*} $_exargs && return
929 ;;
930 *:*:*) # already expanded w/o prefixlen option
931 echo inet6 $_arg $_exargs && return
932 ;;
933 esac
935 for _cidr in $_arg; do
936 _ipaddr="${_cidr%%/*}"
937 _plen="${_cidr##*/}"
939 case $_action:$_ipaddr:$_cidr in
940 -alias:*:*) unset _plen ;;
941 *:$_cidr:$_ipaddr) unset _plen ;;
942 esac
944 if [ "${_ipaddr%:*.*.*.*}" = "$_ipaddr" ]; then
945 # Handle !v4mapped && !v4compat addresses.
947 # The default prefix length is 64.
948 case $_ipaddr:$_cidr in
949 $_cidr:$_ipaddr) _plen="64" ;;
950 esac
951 _ipleft=${_ipaddr%-*}
952 _ipright=${_ipaddr#*-}
953 _iplow=${_ipleft##*:}
954 _iphigh=${_ipright%%:*}
955 _ipleft=${_ipleft%:*}
956 _ipright=${_ipright#*:}
958 if [ "$_iphigh" = "$_ipright" ]; then
959 unset _ipright
960 else
961 _ipright=:$_ipright
962 fi
964 if [ -n "$_iplow" -a -n "$_iphigh" ]; then
965 _iplow=$((0x$_iplow))
966 _iphigh=$((0x$_iphigh))
967 _ipcount=$_iplow
968 while [ $_ipcount -le $_iphigh ]; do
969 _r=`printf "%s:%04x%s%s" \
970 $_ipleft $_ipcount $_ipright \
971 ${_plen:+/}$_plen`
972 _retstr="$_retstr $_r"
973 if [ $_ipcount -gt $(($_iplow + $netif_ipexpand_max)) ]
974 then
975 warn "Range specification is too large $(printf '(%s:%x%s-%s:%x%s)' "$_ipleft" "$_iplow" "$_ipright" "$_ipleft" "$_iphigh" "$_ipright"). $(printf '%s:%x%s-%s:%x%s' "$_ipleft" "$_iplow" "$_ipright" "$_ipleft" "$_ipcount" "$_ipright") was processed. Increase \$netif_ipexpand_max in rc.conf."
976 break
977 else
978 _ipcount=$(($_ipcount + 1))
979 fi
980 done
981 else
982 _retstr="${_ipaddr}${_plen:+/}${_plen}"
983 fi
985 for _c in $_retstr; do
986 ifalias_expand_addr_inet6 $_action $_c $_exargs
987 done
988 else
989 # v4mapped/v4compat should handle as an IPv4 alias
990 _ipv4part=${_ipaddr##*:}
992 # Adjust prefix length if any. If not, set the
993 # default prefix length as 32.
994 case $_ipaddr:$_cidr in
995 $_cidr:$_ipaddr) _plen=32 ;;
996 *) _plen=$(($_plen - 96)) ;;
997 esac
999 _retstr=`ifalias_expand_addr_inet \
1000 tmp ${_ipv4part}${_plen:+/}${_plen}`
1001 for _c in $_retstr; do
1002 ifalias_expand_addr_inet $_action $_c $_exargs
1003 done
1004 fi
1005 done
1006 }
1008 # ifalias_af_common_handler if af action args
1009 # Helper function for ifalias_af_common().
1010 #
1011 ifalias_af_common_handler()
1012 {
1013 local _ret _if _af _action _args _c _tmpargs
1015 _ret=1
1016 _if=$1
1017 _af=$2
1018 _action=$3
1019 shift 3
1020 _args=$*
1022 case $_args in
1023 ${_af}\ *) ;;
1024 *) return ;;
1025 esac
1027 # link(ether) does not support address removal.
1028 case $_af:$_action in
1029 link:-alias|ether:-alias) return ;;
1030 esac
1032 _tmpargs=
1033 for _c in $_args; do
1034 case $_c in
1035 ${_af})
1036 case $_tmpargs in
1037 ${_af}\ *[0-9a-fA-F]-*)
1038 ifalias_af_common_handler $_if $_af $_action \
1039 `ifalias_expand_addr $_af $_action ${_tmpargs#${_af}\ }`
1040 ;;
1041 ${_af}\ *)
1042 ${IFCONFIG_CMD} $_if $_tmpargs $_action && _ret=0
1043 ;;
1044 esac
1045 _tmpargs=$_af
1046 ;;
1047 *)
1048 _tmpargs="$_tmpargs $_c"
1049 ;;
1050 esac
1051 done
1052 # Process the last component if any.
1053 if [ -n "$_tmpargs}" ]; then
1054 case $_tmpargs in
1055 ${_af}\ *[0-9a-fA-F]-*)
1056 ifalias_af_common_handler $_if $_af $_action \
1057 `ifalias_expand_addr $_af $_action ${_tmpargs#${_af}\ }`
1058 ;;
1059 ${_af}\ *)
1060 ${IFCONFIG_CMD} $_if $_tmpargs $_action && _ret=0
1061 ;;
1062 esac
1063 fi
1065 return $_ret
1066 }
1068 # ifalias_af_common if af action
1069 # Helper function for ifalias().
1070 #
1071 ifalias_af_common()
1072 {
1073 local _ret _if _af _action alias ifconfig_args _aliasn _c _tmpargs _iaf
1074 local _vif _punct=".-/+"
1076 _ret=1
1077 _aliasn=
1078 _if=$1
1079 _af=$2
1080 _action=$3
1082 # Normalize $_if before using it in a pattern to list_vars()
1083 ltr "$_if" "$_punct" "_" _vif
1085 # ifconfig_IF_aliasN which starts with $_af
1086 for alias in `list_vars ifconfig_${_vif}_alias[0-9]\* |
1087 sort_lite -nk1.$((9+${#_vif}+7))`
1088 do
1089 eval ifconfig_args=\"\$$alias\"
1090 _iaf=
1091 case $ifconfig_args in
1092 inet\ *) _iaf=inet ;;
1093 inet6\ *) _iaf=inet6 ;;
1094 link\ *) _iaf=link ;;
1095 ether\ *) _iaf=ether ;;
1096 esac
1098 case ${_af}:${_action}:${_iaf}:"${ifconfig_args}" in
1099 ${_af}:*:${_af}:*)
1100 _aliasn="$_aliasn $ifconfig_args"
1101 ;;
1102 ${_af}:*:"":"")
1103 break
1104 ;;
1105 inet:alias:"":*)
1106 _aliasn="$_aliasn inet $ifconfig_args"
1107 warn "\$${alias} needs leading" \
1108 "\"inet\" keyword for an IPv4 address."
1109 esac
1110 done
1112 # backward compatibility: ipv6_ifconfig_IF_aliasN.
1113 case $_af in
1114 inet6)
1115 for alias in `list_vars ipv6_ifconfig_${_vif}_alias[0-9]\* |
1116 sort_lite -nk1.$((14+${#_vif}+7))`
1117 do
1118 eval ifconfig_args=\"\$$alias\"
1119 case ${_action}:"${ifconfig_args}" in
1120 *:"")
1121 break
1122 ;;
1123 alias:*)
1124 _aliasn="${_aliasn} inet6 ${ifconfig_args}"
1125 warn "\$${alias} is obsolete. " \
1126 "Use ifconfig_${_vif}_aliasN instead."
1127 ;;
1128 esac
1129 done
1130 esac
1132 # backward compatibility: ipv4_addrs_IF.
1133 for _tmpargs in `get_if_var $_if ipv4_addrs_IF`; do
1134 _aliasn="$_aliasn inet $_tmpargs"
1135 done
1137 # Handle ifconfig_IF_aliases, ifconfig_IF_aliasN, and the others.
1138 _tmpargs=
1139 for _c in `get_if_var $_if ifconfig_IF_aliases` $_aliasn; do
1140 case $_c in
1141 inet|inet6|link|ether)
1142 case $_tmpargs in
1143 ${_af}\ *)
1144 eval ifalias_af_common_handler $_if $_af $_action $_tmpargs && _ret=0
1145 ;;
1146 esac
1147 _tmpargs=$_c
1148 ;;
1149 *)
1150 _tmpargs="$_tmpargs $_c"
1151 esac
1152 done
1153 # Process the last component
1154 case $_tmpargs in
1155 ${_af}\ *)
1156 ifalias_af_common_handler $_if $_af $_action $_tmpargs && _ret=0
1157 ;;
1158 esac
1160 return $_ret
1161 }
1163 # ipv6_prefix_hostid_addr_common if action
1164 # Add or remove IPv6 prefix + hostid addr on the interface $if
1165 #
1166 ipv6_prefix_hostid_addr_common()
1167 {
1168 local _if _action prefix j
1169 _if=$1
1170 _action=$2
1171 prefix=`get_if_var ${_if} ipv6_prefix_IF`
1173 if [ -n "${prefix}" ]; then
1174 for j in ${prefix}; do
1175 # The default prefixlen is 64.
1176 plen=${j#*/}
1177 case $j:$plen in
1178 $plen:$j) plen=64 ;;
1179 *) j=${j%/*} ;;
1180 esac
1182 # Normalize the last part by removing ":"
1183 j=${j%::*}
1184 j=${j%:}
1185 ${IFCONFIG_CMD} ${_if} inet6 $j:: \
1186 prefixlen $plen eui64 ${_action}
1188 # if I am a router, add subnet router
1189 # anycast address (RFC 2373).
1190 if checkyesno ipv6_gateway_enable; then
1191 ${IFCONFIG_CMD} ${_if} inet6 $j:: \
1192 prefixlen $plen ${_action} anycast
1193 fi
1194 done
1195 fi
1196 }
1198 # ipv6_accept_rtadv_up if
1199 # Enable accepting Router Advertisement and send Router
1200 # Solicitation message
1201 ipv6_accept_rtadv_up()
1202 {
1203 if ipv6_autoconfif $1; then
1204 ${IFCONFIG_CMD} $1 inet6 accept_rtadv up
1205 if ! checkyesno rtsold_enable; then
1206 rtsol ${rtsol_flags} $1
1207 fi
1208 fi
1209 }
1211 # ipv6_accept_rtadv_down if
1212 # Disable accepting Router Advertisement
1213 ipv6_accept_rtadv_down()
1214 {
1215 if ipv6_autoconfif $1; then
1216 ${IFCONFIG_CMD} $1 inet6 -accept_rtadv
1217 fi
1218 }
1220 # ifscript_up if
1221 # Evaluate a startup script for the $if interface.
1222 # It returns 0 if a script was found and processed or
1223 # 1 if no script was found.
1224 #
1225 ifscript_up()
1226 {
1227 if [ -r /etc/start_if.$1 ]; then
1228 . /etc/start_if.$1
1229 return 0
1230 else
1231 return 1
1232 fi
1233 }
1235 # ifscript_down if
1236 # Evaluate a shutdown script for the $if interface.
1237 # It returns 0 if a script was found and processed or
1238 # 1 if no script was found.
1239 #
1240 ifscript_down()
1241 {
1242 if [ -r /etc/stop_if.$1 ]; then
1243 . /etc/stop_if.$1
1244 return 0
1245 else
1246 return 1
1247 fi
1248 }
1250 # wlan_up
1251 # Create IEEE802.11 interfaces.
1252 #
1253 wlan_up()
1254 {
1255 local _list _iflist parent child_wlans child create_args debug_flags
1256 _list=
1257 _iflist=$*
1259 # Parse wlans_$parent="$child ..."
1260 for parent in `set | sed -nE 's/wlans_([a-z]+[0-9]+)=.*/\1/p'`; do
1261 child_wlans=`get_if_var $parent wlans_IF`
1262 for child in ${child_wlans}; do
1263 create_args="wlandev $parent `get_if_var $child create_args_IF`"
1264 debug_flags="`get_if_var $child wlandebug_IF`"
1265 case $_iflist in
1266 ""|$child|$child\ *|*\ $child\ *|*\ $child) ;;
1267 *) continue ;;
1268 esac
1269 # Skip if ${child} already exists.
1270 if ${IFCONFIG_CMD} $child > /dev/null 2>&1; then
1271 continue
1272 fi
1273 if expr $child : 'wlan[0-9][0-9]*$' >/dev/null 2>&1; then
1274 ${IFCONFIG_CMD} $child create ${create_args} && cfg=0
1275 if [ $? -eq 0 ]; then
1276 _list="$_list $child"
1277 fi
1278 if [ -n "${debug_flags}" ]; then
1279 wlandebug -i $child ${debug_flags}
1280 fi
1281 else
1282 i=`${IFCONFIG_CMD} wlan create ${create_args}`
1283 # XXXGL: wlandebug should accept any name
1284 if [ -n "${debug_flags}" ]; then
1285 wlandebug -i $i ${debug_flags}
1286 fi
1287 ${IFCONFIG_CMD} $i name $child && cfg=0
1288 if [ $? -eq 0 ]; then
1289 _list="$_list $child"
1290 fi
1291 fi
1292 done
1293 done
1294 if [ -n "${_list# }" ]; then
1295 echo "Created wlan(4) interfaces: ${_list# }."
1296 fi
1297 debug "Created wlan(4)s: ${_list# }"
1298 }
1300 # wlan_down
1301 # Destroy IEEE802.11 interfaces.
1302 #
1303 wlan_down()
1304 {
1305 local _list _iflist parent child_wlans child
1306 _list=
1307 _iflist=$*
1309 # Parse wlans_$parent="$child ..."
1310 for parent in `set | sed -nE 's/wlans_([a-z]+[0-9]+)=.*/\1/p'`; do
1311 child_wlans=`get_if_var $parent wlans_IF`
1312 for child in ${child_wlans}; do
1313 case $_iflist in
1314 ""|$child|$child\ *|*\ $child\ *|*\ $child) ;;
1315 *) continue ;;
1316 esac
1317 # Skip if ${child} doesn't exists.
1318 if ! ${IFCONFIG_CMD} $child > /dev/null 2>&1; then
1319 continue
1320 fi
1321 ${IFCONFIG_CMD} -n ${child} destroy
1322 if [ $? -eq 0 ]; then
1323 _list="$_list $child"
1324 fi
1325 done
1326 done
1327 if [ -n "${_list# }" ]; then
1328 echo "Destroyed wlan(4) interfaces: ${_list# }."
1329 fi
1330 debug "Destroyed wlan(4)s: ${_list# }"
1331 }
1333 # clone_up
1334 # Create cloneable interfaces.
1335 #
1336 clone_up()
1337 {
1338 local _list ifn ifopt _iflist _n tmpargs
1339 _list=
1340 _iflist=$*
1342 # create_args_IF
1343 for ifn in ${cloned_interfaces}; do
1344 # Parse ifn:ifopt.
1345 OIFS=$IFS; IFS=:; set -- $ifn; ifn=$1; ifopt=$2; IFS=$OIFS
1346 case $_iflist in
1347 ""|$ifn|$ifn\ *|*\ $ifn\ *|*\ $ifn) ;;
1348 *) continue ;;
1349 esac
1350 case $ifn in
1351 epair[0-9]*)
1352 # epair(4) uses epair[0-9] for creation and
1353 # epair[0-9][ab] for configuration.
1354 #
1355 # Skip if ${ifn}a or ${ifn}b already exist.
1356 if ${IFCONFIG_CMD} ${ifn}a > /dev/null 2>&1; then
1357 continue
1358 elif ${IFCONFIG_CMD} ${ifn}b > /dev/null 2>&1; then
1359 continue
1360 fi
1361 ${IFCONFIG_CMD} ${ifn} create \
1362 `get_if_var ${ifn} create_args_IF`
1363 if [ $? -eq 0 ]; then
1364 _list="$_list ${ifn}a ${ifn}b"
1365 fi
1366 ;;
1367 *)
1368 # Skip if ${ifn} already exists.
1369 if ${IFCONFIG_CMD} $ifn > /dev/null 2>&1; then
1370 continue
1371 fi
1372 ${IFCONFIG_CMD} ${ifn} create \
1373 `get_if_var ${ifn} create_args_IF`
1374 if [ $? -eq 0 ]; then
1375 _list="$_list $ifn"
1376 fi
1377 esac
1378 done
1379 if [ -n "$gif_interfaces" ]; then
1380 warn "\$gif_interfaces is obsolete. Use \$cloned_interfaces instead."
1381 fi
1382 for ifn in ${gif_interfaces}; do
1383 # Parse ifn:ifopt.
1384 OIFS=$IFS; IFS=:; set -- $ifn; ifn=$1; ifopt=$2; IFS=$OIFS
1385 case $_iflist in
1386 ""|$ifn|$ifn\ *|*\ $ifn\ *|*\ $ifn) ;;
1387 *) continue ;;
1388 esac
1389 # Skip if ifn already exists.
1390 if ${IFCONFIG_CMD} $ifn > /dev/null 2>&1; then
1391 continue
1392 fi
1393 case $ifn in
1394 gif[0-9]*)
1395 ${IFCONFIG_CMD} $ifn create
1396 ;;
1397 *)
1398 _n=$(${IFCONFIG_CMD} gif create)
1399 ${IFCONFIG_CMD} $_n name $ifn
1400 ;;
1401 esac
1402 if [ $? -eq 0 ]; then
1403 _list="$_list $ifn"
1404 fi
1405 tmpargs=$(get_if_var $ifn gifconfig_IF)
1406 eval ifconfig_${ifn}=\"tunnel \$tmpargs\"
1407 done
1408 if [ -n "${_list# }" ]; then
1409 echo "Created clone interfaces: ${_list# }."
1410 fi
1411 debug "Cloned: ${_list# }"
1412 }
1414 # clone_down
1415 # Destroy cloned interfaces. Destroyed interfaces are echoed to
1416 # standard output.
1417 #
1418 clone_down()
1419 {
1420 local _list ifn _difn ifopt _iflist _sticky
1421 _list=
1422 _iflist=$*
1424 : ${cloned_interfaces_sticky:=NO}
1425 if checkyesno cloned_interfaces_sticky; then
1426 _sticky=1
1427 else
1428 _sticky=0
1429 fi
1430 for ifn in ${cloned_interfaces} ${gif_interfaces}; do
1431 # Parse ifn:ifopt.
1432 OIFS=$IFS; IFS=:; set -- $ifn; ifn=$1; ifopt=$2; IFS=$OIFS
1433 case $ifopt:$_sticky in
1434 sticky:*) continue ;; # :sticky => not destroy
1435 nosticky:*) ;; # :nosticky => destroy
1436 *:1) continue ;; # global sticky knob == 1
1437 esac
1438 case $_iflist in
1439 ""|$ifn|$ifn\ *|*\ $ifn\ *|*\ $ifn) ;;
1440 *) continue ;;
1441 esac
1442 case $ifn in
1443 epair[0-9]*)
1444 # Note: epair(4) uses epair[0-9] for removal and
1445 # epair[0-9][ab] for configuration.
1446 #
1447 # Skip if both of ${ifn}a and ${ifn}b do not exist.
1448 if ${IFCONFIG_CMD} ${ifn}a > /dev/null 2>&1; then
1449 _difn=${ifn}a
1450 elif ${IFCONFIG_CMD} ${ifn}b > /dev/null 2>&1; then
1451 _difn=${ifn}b
1452 else
1453 continue
1454 fi
1455 ${IFCONFIG_CMD} -n $_difn destroy
1456 if [ $? -eq 0 ]; then
1457 _list="$_list ${ifn}a ${ifn}b"
1458 fi
1459 ;;
1460 *)
1461 # Skip if ifn does not exist.
1462 if ! ${IFCONFIG_CMD} $ifn > /dev/null 2>&1; then
1463 continue
1464 fi
1465 ${IFCONFIG_CMD} -n ${ifn} destroy
1466 if [ $? -eq 0 ]; then
1467 _list="$_list $ifn"
1468 fi
1469 ;;
1470 esac
1471 done
1472 if [ -n "${_list# }" ]; then
1473 echo "Destroyed clone interfaces: ${_list# }."
1474 fi
1475 debug "Destroyed clones: ${_list# }"
1476 }
1478 # childif_create
1479 # Create and configure child interfaces. Return 0 if child
1480 # interfaces are created.
1481 #
1482 # XXXGL: the wlan code in this functions is superseded by wlan_up(),
1483 # and will go away soon.
1484 #
1485 childif_create()
1486 {
1487 local cfg child child_vlans child_wlans create_args debug_flags ifn i
1488 cfg=1
1489 ifn=$1
1491 # Create wireless interfaces
1492 child_wlans=`get_if_var $ifn wlans_IF`
1494 for child in ${child_wlans}; do
1495 create_args="wlandev $ifn `get_if_var $child create_args_IF`"
1496 debug_flags="`get_if_var $child wlandebug_IF`"
1498 if expr $child : 'wlan[0-9][0-9]*$' >/dev/null 2>&1; then
1499 ${IFCONFIG_CMD} $child create ${create_args} && cfg=0
1500 if [ -n "${debug_flags}" ]; then
1501 wlandebug -i $child ${debug_flags}
1502 fi
1503 else
1504 i=`${IFCONFIG_CMD} wlan create ${create_args}`
1505 if [ -n "${debug_flags}" ]; then
1506 wlandebug -i $i ${debug_flags}
1507 fi
1508 ${IFCONFIG_CMD} $i name $child && cfg=0
1509 fi
1510 if autoif $child; then
1511 ifn_start $child
1512 fi
1513 done
1515 # Create vlan interfaces
1516 child_vlans=`get_if_var $ifn vlans_IF`
1518 if [ -n "${child_vlans}" ]; then
1519 load_kld if_vlan
1520 fi
1522 for child in ${child_vlans}; do
1523 if expr $child : '[1-9][0-9]*$' >/dev/null 2>&1; then
1524 child="${ifn}.${child}"
1525 create_args=`get_if_var $child create_args_IF`
1526 ${IFCONFIG_CMD} $child create ${create_args} && cfg=0
1527 else
1528 create_args="vlandev $ifn `get_if_var $child create_args_IF`"
1529 if expr $child : 'vlan[0-9][0-9]*$' >/dev/null 2>&1; then
1530 ${IFCONFIG_CMD} $child create ${create_args} && cfg=0
1531 else
1532 i=`${IFCONFIG_CMD} vlan create ${create_args}`
1533 ${IFCONFIG_CMD} $i name $child && cfg=0
1534 fi
1535 fi
1536 if autoif $child; then
1537 ifn_start $child
1538 fi
1539 done
1541 return ${cfg}
1542 }
1544 # childif_destroy
1545 # Destroy child interfaces.
1546 #
1547 childif_destroy()
1548 {
1549 local cfg child child_vlans child_wlans ifn
1550 cfg=1
1552 child_wlans=`get_if_var $ifn wlans_IF`
1553 for child in ${child_wlans}; do
1554 if ! ifexists $child; then
1555 continue
1556 fi
1557 ${IFCONFIG_CMD} -n $child destroy && cfg=0
1558 done
1560 child_vlans=`get_if_var $ifn vlans_IF`
1561 for child in ${child_vlans}; do
1562 if expr $child : '[1-9][0-9]*$' >/dev/null 2>&1; then
1563 child="${ifn}.${child}"
1564 fi
1565 if ! ifexists $child; then
1566 continue
1567 fi
1568 ${IFCONFIG_CMD} -n $child destroy && cfg=0
1569 done
1571 return ${cfg}
1572 }
1574 # ng_mkpeer
1575 # Create netgraph nodes.
1576 #
1577 ng_mkpeer()
1578 {
1579 ngctl -f - 2> /dev/null <<EOF
1580 mkpeer $*
1581 msg dummy nodeinfo
1582 EOF
1583 }
1585 # ng_create_one
1586 # Create netgraph nodes.
1587 #
1588 ng_create_one()
1589 {
1590 local t
1592 ng_mkpeer $* | while read line; do
1593 t=`expr "${line}" : '.* name="\([a-z]*[0-9]*\)" .*'`
1594 if [ -n "${t}" ]; then
1595 echo ${t}
1596 return
1597 fi
1598 done
1599 }
1601 # ifnet_rename [ifname]
1602 # Rename interfaces if ifconfig_IF_name is defined.
1603 #
1604 ifnet_rename()
1605 {
1606 local _if _ifname
1608 # ifconfig_IF_name
1609 for _if in ${*:-$(${IFCONFIG_CMD} -l)}; do
1610 _ifname=`get_if_var $_if ifconfig_IF_name`
1611 if [ ! -z "$_ifname" ]; then
1612 ${IFCONFIG_CMD} $_if name $_ifname
1613 fi
1614 done
1616 return 0
1617 }
1619 # list_net_interfaces type
1620 # List all network interfaces. The type of interface returned
1621 # can be controlled by the type argument. The type
1622 # argument can be any of the following:
1623 # nodhcp - all interfaces, excluding DHCP configured interfaces
1624 # dhcp - list only DHCP configured interfaces
1625 # noautoconf - all interfaces, excluding IPv6 Stateless
1626 # Address Autoconf configured interfaces
1627 # autoconf - list only IPv6 Stateless Address Autoconf
1628 # configured interfaces
1629 # If no argument is specified all network interfaces are output.
1630 # Note that the list will include cloned interfaces if applicable.
1631 # Cloned interfaces must already exist to have a chance to appear
1632 # in the list if ${network_interfaces} is set to `auto'.
1633 #
1634 list_net_interfaces()
1635 {
1636 local type _tmplist _list _autolist _lo _if
1637 type=$1
1639 # Get a list of ALL the interfaces and make lo0 first if it's there.
1640 #
1641 _tmplist=
1642 case ${network_interfaces} in
1643 [Aa][Uu][Tt][Oo])
1644 _autolist="`${IFCONFIG_CMD} -l`"
1645 _lo=
1646 for _if in ${_autolist} ; do
1647 if autoif $_if; then
1648 if [ "$_if" = "lo0" ]; then
1649 _lo="lo0 "
1650 else
1651 _tmplist="${_tmplist} ${_if}"
1652 fi
1653 fi
1654 done
1655 _tmplist="${_lo}${_tmplist# }"
1656 ;;
1657 *)
1658 for _if in ${network_interfaces} ${cloned_interfaces}; do
1659 # epair(4) uses epair[0-9] for creation and
1660 # epair[0-9][ab] for configuration.
1661 case $_if in
1662 epair[0-9]*)
1663 _tmplist="$_tmplist ${_if}a ${_if}b"
1664 ;;
1665 *)
1666 _tmplist="$_tmplist $_if"
1667 ;;
1668 esac
1669 done
1670 #
1671 # lo0 is effectively mandatory, so help prevent foot-shooting
1672 #
1673 case "$_tmplist" in
1674 lo0|'lo0 '*|*' lo0'|*' lo0 '*)
1675 # This is fine, do nothing
1676 _tmplist="${_tmplist# }"
1677 ;;
1678 *)
1679 _tmplist="lo0 ${_tmplist# }"
1680 ;;
1681 esac
1682 ;;
1683 esac
1685 _list=
1686 case "$type" in
1687 nodhcp)
1688 for _if in ${_tmplist} ; do
1689 if ! dhcpif $_if && \
1690 [ -n "`_ifconfig_getargs $_if`" ]; then
1691 _list="${_list# } ${_if}"
1692 fi
1693 done
1694 ;;
1695 dhcp)
1696 for _if in ${_tmplist} ; do
1697 if dhcpif $_if; then
1698 _list="${_list# } ${_if}"
1699 fi
1700 done
1701 ;;
1702 noautoconf)
1703 for _if in ${_tmplist} ; do
1704 if ! ipv6_autoconfif $_if && \
1705 [ -n "`_ifconfig_getargs $_if ipv6`" ]; then
1706 _list="${_list# } ${_if}"
1707 fi
1708 done
1709 ;;
1710 autoconf)
1711 for _if in ${_tmplist} ; do
1712 if ipv6_autoconfif $_if; then
1713 _list="${_list# } ${_if}"
1714 fi
1715 done
1716 ;;
1717 *)
1718 _list=${_tmplist}
1719 ;;
1720 esac
1722 echo $_list
1724 return 0
1725 }
1727 # get_default_if -address_family
1728 # Get the interface of the default route for the given address family.
1729 # The -address_family argument must be suitable passing to route(8).
1730 #
1731 get_default_if()
1732 {
1733 local routeget oldifs defif line
1734 defif=
1735 oldifs="$IFS"
1736 IFS="
1737 "
1738 for line in `route -n get $1 default 2>/dev/null`; do
1739 case $line in
1740 *interface:*)
1741 defif=${line##*: }
1742 ;;
1743 esac
1744 done
1745 IFS=${oldifs}
1747 echo $defif
1748 }
1750 # hexdigit arg
1751 # Echo decimal number $arg (single digit) in hexadecimal format.
1752 hexdigit()
1753 {
1754 printf '%x\n' "$1"
1755 }
1757 # hexprint arg
1758 # Echo decimal number $arg (multiple digits) in hexadecimal format.
1759 hexprint()
1760 {
1761 printf '%x\n' "$1"
1762 }
1764 is_wired_interface()
1765 {
1766 local media
1768 case `${IFCONFIG_CMD} $1 2>/dev/null` in
1769 *media:?Ethernet*) media=Ethernet ;;
1770 esac
1772 test "$media" = "Ethernet"
1773 }
1775 # network6_getladdr if [flag]
1776 # Echo link-local address from $if if any.
1777 # If flag is defined, tentative ones will be excluded.
1778 network6_getladdr()
1779 {
1780 local _if _flag proto addr rest
1781 _if=$1
1782 _flag=$2
1784 ${IFCONFIG_CMD} $_if 2>/dev/null | while read proto addr rest; do
1785 case "${proto}/${addr}/${_flag}/${rest}" in
1786 inet6/fe80::*//*)
1787 echo ${addr}
1788 ;;
1789 inet6/fe80:://*tentative*) # w/o flag
1790 sleep `${SYSCTL_N} net.inet6.ip6.dad_count`
1791 network6_getladdr $_if $_flags
1792 ;;
1793 inet6/fe80::/*/*tentative*) # w/ flag
1794 echo ${addr}
1795 ;;
1796 *)
1797 continue
1798 ;;
1799 esac
1801 return
1802 done
1803 }