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# 27IFCONFIG_CMD="/sbin/ifconfig" 28: ${netif_ipexpand_max:=2048} 29 30# 31# Subroutines commonly used from network startup scripts. 32# Requires that rc.conf be loaded first. 33# 34 35# ifn_start ifn 36# Bring up and configure an interface. If some configuration is 37# applied, print the interface configuration. 38# 39ifn_start() 40{ 41 local ifn cfg 42 ifn="$1" 43 cfg=1 44 45 [ -z "$ifn" ] && err 1 "ifn_start called without an interface" 46 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 54 55 return $cfg 56} 57 58# ifn_stop ifn 59# Shutdown and de-configure an interface. If action is taken, 60# print the interface name. 61# 62ifn_stop() 63{ 64 local ifn cfg 65 ifn="$1" 66 cfg=1 67 68 [ -z "$ifn" ] && err 1 "ifn_stop called without an interface" 69 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 77 78 return $cfg 79} 80 81# ifn_vnetup ifn 82# Move ifn to the specified vnet jail. 83# 84ifn_vnetup() 85{ 86 87 ifn_vnet0 $1 vnet 88} 89 90# ifn_vnetdown ifn 91# Reclaim ifn from the specified vnet jail. 92# 93ifn_vnetdown() 94{ 95 96 ifn_vnet0 $1 -vnet 97} 98 99# ifn_vnet0 ifn action 100# Helper function for ifn_vnetup and ifn_vnetdown. 101# 102ifn_vnet0() 103{ 104 local _ifn _cfg _action _vnet 105 _ifn="$1" 106 _action="$2" 107 _cfg=1 108 109 if _vnet=$(vnetif $_ifn); then 110 ${IFCONFIG_CMD} $_ifn $_action $_vnet && _cfg=0 111 fi 112 113 return $_cfg 114} 115 116# 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# 123ifconfig_up() 124{ 125 local _cfg _ifconfig_descr _ipv6_opts ifconfig_args 126 _cfg=1 127 128 # Make sure lo0 always comes up. 129 if [ "$1" = "lo0" ]; then 130 _cfg=0 131 fi 132 133 # 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 140 141 # 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 158 159 case $ipv6_cpe_wanif in 160 $1) 161 _ipv6_opts="${_ipv6_opts} -no_radr accept_rtadv" 162 ;; 163 esac 164 165 if [ -n "${_ipv6_opts}" ]; then 166 ${IFCONFIG_CMD} $1 inet6 ${_ipv6_opts} 167 fi 168 fi 169 170 # 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 176 177 # 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 194 195 # $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 202 203 # 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 213 214 ifalias $1 link alias 215 ifalias $1 ether alias 216 217 _ifconfig_descr=`get_if_var $1 ifconfig_IF_descr` 218 if [ -n "${_ifconfig_descr}" ]; then 219 ${IFCONFIG_CMD} $1 description "${_ifconfig_descr}" 220 fi 221 222 if wpaif $1; then 223 /etc/rc.d/wpa_supplicant start $1 224 _cfg=0 # XXX: not sure this should count 225 elif hostapif $1; then 226 /etc/rc.d/hostapd start $1 227 _cfg=0 228 elif [ ${_cfg} -eq 0 ]; then 229 ${IFCONFIG_CMD} $1 up 230 fi 231 232 if dhcpif $1; then 233 if [ $_cfg -ne 0 ] ; then 234 ${IFCONFIG_CMD} $1 up 235 fi 236 if syncdhcpif $1; then 237 /etc/rc.d/dhclient start $1 238 fi 239 _cfg=0 240 fi 241 242 return $_cfg 243} 244 245# ifconfig_down if 246# returns 1 if wpa_supplicant or dhclient was stopped or 247# the interface exists. 248# 249ifconfig_down() 250{ 251 local _cfg 252 _cfg=1 253 254 if wpaif $1; then 255 /etc/rc.d/wpa_supplicant stop $1 256 _cfg=0 257 elif hostapif $1; then 258 /etc/rc.d/hostapd stop $1 259 _cfg=0 260 fi 261 262 if dhcpif $1; then 263 /etc/rc.d/dhclient stop $1 264 _cfg=0 265 fi 266 267 if ifexists $1; then 268 ${IFCONFIG_CMD} $1 down 269 _cfg=0 270 fi 271 272 return $_cfg 273} 274 275# get_if_var if var [default] 276# Return the value of the pseudo-hash corresponding to $if where 277# $var is a string containg the sub-string "IF" which will be 278# replaced with $if after the characters defined in _punct are 279# replaced with '_'. If the variable is unset, replace it with 280# $default if given. 281get_if_var() 282{ 283 local _if _punct _punct_c _var _default prefix suffix 284 285 if [ $# -ne 2 -a $# -ne 3 ]; then 286 err 3 'USAGE: get_if_var name var [default]' 287 fi 288 289 _if=$1 290 _punct=".-/+" 291 ltr ${_if} "${_punct}" '_' _if 292 _var=$2 293 _default=$3 294 295 prefix=${_var%%IF*} 296 suffix=${_var##*IF} 297 eval echo \${${prefix}${_if}${suffix}-${_default}} 298} 299 300# _ifconfig_getargs if [af] 301# Prints the arguments for the supplied interface to stdout. 302# Returns 1 if empty. In general, ifconfig_getargs should be used 303# outside this file. 304_ifconfig_getargs() 305{ 306 local _ifn _af 307 _ifn=$1 308 _af=${2+_$2} 309 310 if [ -z "$_ifn" ]; then 311 return 1 312 fi 313 314 get_if_var $_ifn ifconfig_IF$_af "$ifconfig_DEFAULT" 315} 316 317# ifconfig_getargs if [af] 318# Takes the result from _ifconfig_getargs and removes pseudo 319# args such as DHCP and WPA. 320ifconfig_getargs() 321{ 322 local _tmpargs _arg _args _vnet 323 _tmpargs=`_ifconfig_getargs $1 $2` 324 if [ $? -eq 1 ]; then 325 return 1 326 fi 327 _args= 328 _vnet=0 329 330 for _arg in $_tmpargs; do 331 case $_arg:$_vnet in 332 [Dd][Hh][Cc][Pp]:0) ;; 333 [Nn][Oo][Aa][Uu][Tt][Oo]:0) ;; 334 [Nn][Oo][Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp]:0) ;; 335 [Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp]:0) ;; 336 [Ww][Pp][Aa]:0) ;; 337 [Hh][Oo][Ss][Tt][Aa][Pp]:0) ;; 338 vnet:0) _vnet=1 ;; 339 *:1) _vnet=0 ;; 340 *:0) 341 _args="$_args $_arg" 342 ;; 343 esac 344 done 345 346 echo $_args 347} 348 349# autoif 350# Returns 0 if the interface should be automatically configured at 351# boot time and 1 otherwise. 352autoif() 353{ 354 local _tmpargs _arg 355 _tmpargs=`_ifconfig_getargs $1` 356 357 for _arg in $_tmpargs; do 358 case $_arg in 359 [Nn][Oo][Aa][Uu][Tt][Oo]) 360 return 1 361 ;; 362 esac 363 done 364 365 return 0 366} 367 368# dhcpif if 369# Returns 0 if the interface is a DHCP interface and 1 otherwise. 370dhcpif() 371{ 372 local _tmpargs _arg 373 _tmpargs=`_ifconfig_getargs $1` 374 375 case $1 in 376 lo[0-9]*|\ 377 stf[0-9]*|\ 378 lp[0-9]*|\ 379 sl[0-9]*) 380 return 1 381 ;; 382 esac 383 if noafif $1; then 384 return 1 385 fi 386 387 for _arg in $_tmpargs; do 388 case $_arg in 389 [Dd][Hh][Cc][Pp]) 390 return 0 391 ;; 392 [Nn][Oo][Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp]) 393 return 0 394 ;; 395 [Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp]) 396 return 0 397 ;; 398 esac 399 done 400 401 return 1 402} 403 404# syncdhcpif 405# Returns 0 if the interface should be configured synchronously and 406# 1 otherwise. 407syncdhcpif() 408{ 409 local _tmpargs _arg 410 _tmpargs=`_ifconfig_getargs $1` 411 412 if noafif $1; then 413 return 1 414 fi 415 416 for _arg in $_tmpargs; do 417 case $_arg in 418 [Nn][Oo][Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp]) 419 return 1 420 ;; 421 [Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp]) 422 return 0 423 ;; 424 esac 425 done 426 427 checkyesno synchronous_dhclient 428} 429 430# wpaif if 431# Returns 0 if the interface is a WPA interface and 1 otherwise. 432wpaif() 433{ 434 local _tmpargs _arg 435 _tmpargs=`_ifconfig_getargs $1` 436 437 for _arg in $_tmpargs; do 438 case $_arg in 439 [Ww][Pp][Aa]) 440 return 0 441 ;; 442 esac 443 done 444 445 return 1 446} 447 448# hostapif if 449# Returns 0 if the interface is a HOSTAP interface and 1 otherwise. 450hostapif() 451{ 452 local _tmpargs _arg 453 _tmpargs=`_ifconfig_getargs $1` 454 455 for _arg in $_tmpargs; do 456 case $_arg in 457 [Hh][Oo][Ss][Tt][Aa][Pp]) 458 return 0 459 ;; 460 esac 461 done 462 463 return 1 464} 465 466# vnetif if 467# Returns 0 and echo jail if "vnet" keyword is specified on the 468# interface, and 1 otherwise. 469vnetif() 470{ 471 local _tmpargs _arg _vnet 472 _tmpargs=`_ifconfig_getargs $1` 473 474 _vnet=0 475 for _arg in $_tmpargs; do 476 case $_arg:$_vnet in 477 vnet:0) _vnet=1 ;; 478 *:1) echo $_arg; return 0 ;; 479 esac 480 done 481 482 return 1 483} 484 485# afexists af 486# Returns 0 if the address family is enabled in the kernel 487# 1 otherwise. 488afexists() 489{ 490 local _af 491 _af=$1 492 493 case ${_af} in 494 inet|inet6) 495 check_kern_features ${_af} 496 ;; 497 link|ether) 498 return 0 499 ;; 500 *) 501 err 1 "afexists(): Unsupported address family: $_af" 502 ;; 503 esac 504} 505 506# noafif if 507# Returns 0 if the interface has no af configuration and 1 otherwise. 508noafif() 509{ 510 local _if 511 _if=$1 512 513 case $_if in 514 pflog[0-9]*|\ 515 pfsync[0-9]*|\ 516 usbus[0-9]*|\ 517 an[0-9]*|\ 518 ath[0-9]*|\ 519 ipw[0-9]*|\ 520 ipfw[0-9]*|\ 521 iwi[0-9]*|\ 522 iwn[0-9]*|\ 523 ral[0-9]*|\ 524 wi[0-9]*|\ 525 wl[0-9]*|\ 526 wpi[0-9]*) 527 return 0 528 ;; 529 esac 530 531 return 1 532} 533 534# ipv6if if 535# Returns 0 if the interface should be configured for IPv6 and 536# 1 otherwise. 537ipv6if() 538{ 539 local _if _tmpargs i 540 _if=$1 541 542 if ! afexists inet6; then 543 return 1 544 fi 545 546 # lo0 is always IPv6-enabled 547 case $_if in 548 lo0) 549 return 0 550 ;; 551 esac 552 553 case "${ipv6_network_interfaces}" in 554 $_if|"$_if "*|*" $_if"|*" $_if "*|[Aa][Uu][Tt][Oo]) 555 # True if $ifconfig_IF_ipv6 is defined. 556 _tmpargs=`_ifconfig_getargs $_if ipv6` 557 if [ -n "${_tmpargs}" ]; then 558 return 0 559 fi 560 561 # True if $ipv6_prefix_IF is defined. 562 _tmpargs=`get_if_var $_if ipv6_prefix_IF` 563 if [ -n "${_tmpargs}" ]; then 564 return 0 565 fi 566 567 # backward compatibility: True if $ipv6_ifconfig_IF is defined. 568 _tmpargs=`get_if_var $_if ipv6_ifconfig_IF` 569 if [ -n "${_tmpargs}" ]; then 570 return 0 571 fi 572 ;; 573 esac 574 575 return 1 576} 577 578# ipv6_autoconfif if 579# Returns 0 if the interface should be configured for IPv6 with 580# Stateless Address Configuration; 1 otherwise. 581ipv6_autoconfif() 582{ 583 local _if _tmpargs _arg 584 _if=$1 585 586 case $_if in 587 lo[0-9]*|\ 588 stf[0-9]*|\ 589 lp[0-9]*|\ 590 sl[0-9]*) 591 return 1 592 ;; 593 esac 594 if noafif $_if; then 595 return 1 596 fi 597 if ! ipv6if $_if; then 598 return 1 599 fi 600 if checkyesno ipv6_gateway_enable; then 601 return 1 602 fi 603 _tmpargs=`get_if_var $_if ipv6_prefix_IF` 604 if [ -n "${_tmpargs}" ]; then 605 return 1 606 fi 607 # backward compatibility: $ipv6_enable 608 case $ipv6_enable in 609 [Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1) 610 if checkyesno ipv6_gateway_enable; then 611 return 1 612 fi 613 case $1 in 614 bridge[0-9]*) 615 # No accept_rtadv by default on if_bridge(4) 616 # to avoid a conflict with the member 617 # interfaces. 618 return 1 619 ;; 620 *) 621 return 0 622 ;; 623 esac 624 ;; 625 esac 626 627 _tmpargs=`_ifconfig_getargs $_if ipv6` 628 for _arg in $_tmpargs; do 629 case $_arg in 630 accept_rtadv) 631 return 0 632 ;; 633 esac 634 done 635 636 # backward compatibility: $ipv6_ifconfig_IF 637 _tmpargs=`get_if_var $_if ipv6_ifconfig_IF` 638 for _arg in $_tmpargs; do 639 case $_arg in 640 accept_rtadv) 641 return 0 642 ;; 643 esac 644 done 645 646 return 1 647} 648 649# ifexists if 650# Returns 0 if the interface exists and 1 otherwise. 651ifexists() 652{ 653 [ -z "$1" ] && return 1 654 ${IFCONFIG_CMD} -n $1 > /dev/null 2>&1 655} 656 657# ipv4_up if 658# add IPv4 addresses to the interface $if 659ipv4_up() 660{ 661 local _if _ret 662 _if=$1 663 _ret=1 664 665 # Add 127.0.0.1/8 to lo0 unless otherwise specified. 666 if [ "${_if}" = "lo0" ]; then 667 ifconfig_args=`get_if_var ${_if} ifconfig_IF` 668 if [ -z "${ifconfig_args}" ]; then 669 ${IFCONFIG_CMD} ${_if} inet 127.0.0.1/8 alias 670 fi 671 fi 672 ifalias ${_if} inet alias && _ret=0 673 674 return $_ret 675} 676 677# ipv6_up if 678# add IPv6 addresses to the interface $if 679ipv6_up() 680{ 681 local _if _ret 682 _if=$1 683 _ret=1 684 685 if ! ipv6if $_if; then 686 return 0 687 fi 688 689 ifalias ${_if} inet6 alias && _ret=0 690 ipv6_prefix_hostid_addr_common ${_if} alias && _ret=0 691 ipv6_accept_rtadv_up ${_if} && _ret=0 692 693 return $_ret 694} 695 696# ipv4_down if 697# remove IPv4 addresses from the interface $if 698ipv4_down() 699{ 700 local _if _ifs _ret inetList oldifs _inet 701 _if=$1 702 _ifs="^" 703 _ret=1 704 705 ifalias ${_if} inet -alias && _ret=0 706 707 inetList="`${IFCONFIG_CMD} ${_if} | grep 'inet ' | tr "\n\t" "$_ifs"`" 708 709 oldifs="$IFS" 710 IFS="$_ifs" 711 for _inet in $inetList ; do 712 # get rid of extraneous line 713 case $_inet in 714 inet\ *) ;; 715 *) continue ;; 716 esac 717 718 _inet=`expr "$_inet" : '.*\(inet \([0-9]\{1,3\}\.\)\{3\}[0-9]\{1,3\}\).*'` 719 720 IFS="$oldifs" 721 ${IFCONFIG_CMD} ${_if} ${_inet} delete 722 IFS="$_ifs" 723 _ret=0 724 done 725 IFS="$oldifs" 726 727 return $_ret 728} 729 730# ipv6_down if 731# remove IPv6 addresses from the interface $if 732ipv6_down() 733{ 734 local _if _ifs _ret inetList oldifs _inet6 735 _if=$1 736 _ifs="^" 737 _ret=1 738 739 if ! ipv6if $_if; then 740 return 0 741 fi 742 743 ipv6_accept_rtadv_down ${_if} && _ret=0 744 ipv6_prefix_hostid_addr_common ${_if} -alias && _ret=0 745 ifalias ${_if} inet6 -alias && _ret=0 746 747 inetList="`${IFCONFIG_CMD} ${_if} | grep 'inet6 ' | tr "\n\t" "$_ifs"`" 748 749 oldifs="$IFS" 750 IFS="$_ifs" 751 for _inet6 in $inetList ; do 752 # get rid of extraneous line 753 case $_inet6 in 754 inet6\ *) ;; 755 *) continue ;; 756 esac 757 758 _inet6=`expr "$_inet6" : '.*\(inet6 \([0-9a-f:]*\)\).*'` 759 760 IFS="$oldifs" 761 ${IFCONFIG_CMD} ${_if} ${_inet6} -alias 762 IFS="$_ifs" 763 _ret=0 764 done 765 IFS="$oldifs" 766 767 return $_ret 768} 769 770# ifalias if af action 771# Configure or remove aliases for network interface $if. 772# It returns 0 if at least one alias was configured or 773# removed, or 1 if there were none. 774# 775ifalias() 776{ 777 local _ret 778 _ret=1 779 780 afexists $2 || return $_ret 781 782 case "$2" in 783 inet|inet6|link|ether) 784 ifalias_af_common $1 $2 $3 && _ret=0 785 ;; 786 esac 787 788 return $_ret 789} 790 791# ifalias_expand_addr af action addr 792# Expand address range ("N-M") specification in addr. 793# "addr" must not include an address-family keyword. 794# The results will include an address-family keyword. 795# 796ifalias_expand_addr() 797{ 798 local _af _action 799 800 _af=$1 801 _action=$2 802 shift 2 803 804 afexists $_af || return 805 ifalias_expand_addr_$_af $_action $* 806} 807 808# ifalias_expand_addr_inet action addr 809# Helper function for ifalias_expand_addr(). Handles IPv4. 810# 811ifalias_expand_addr_inet() 812{ 813 local _action _arg _cidr _cidr_addr _exargs 814 local _ipaddr _plen _range _iphead _iptail _iplow _iphigh _ipcount 815 local _retstr _c 816 _action=$1 817 _arg=$2 818 shift 2 819 _exargs=$* 820 _retstr= 821 822 case $_action:$_arg:$_exargs in 823 *:*--*) return ;; # invalid 824 tmp:*[0-9]-[0-9]*:*) # to be expanded 825 _action="alias" 826 ;; 827 *:*[0-9]-[0-9]*:*) # to be expanded 828 ;; 829 tmp:*:*netmask*) # already expanded w/ netmask option 830 echo ${_arg%/[0-9]*} $_exargs && return 831 ;; 832 tmp:*:*) # already expanded w/o netmask option 833 echo $_arg $_exargs && return 834 ;; 835 *:*:*netmask*) # already expanded w/ netmask option 836 echo inet ${_arg%/[0-9]*} $_exargs && return 837 ;; 838 *:*:*) # already expanded w/o netmask option 839 echo inet $_arg $_exargs && return 840 ;; 841 esac 842 843 for _cidr in $_arg; do 844 _ipaddr=${_cidr%%/*} 845 _plen=${_cidr##*/} 846 # When subnet prefix length is not specified, use /32. 847 case $_plen in 848 $_ipaddr) _plen=32 ;; # "/" character not found 849 esac 850 851 OIFS=$IFS 852 IFS=. set -- $_ipaddr 853 _range= 854 _iphead= 855 _iptail= 856 for _c in $@; do 857 case $_range:$_c in 858 :[0-9]*-[0-9]*) 859 _range=$_c 860 ;; 861 :*) 862 _iphead="${_iphead}${_iphead:+.}${_c}" 863 ;; 864 *:*) 865 _iptail="${_iptail}${_iptail:+.}${_c}" 866 ;; 867 esac 868 done 869 IFS=$OIFS 870 _iplow=${_range%-*} 871 _iphigh=${_range#*-} 872 873 # clear netmask when removing aliases 874 if [ "$_action" = "-alias" ]; then 875 _plen="" 876 fi 877 878 _ipcount=$_iplow 879 while [ "$_ipcount" -le "$_iphigh" ]; do 880 _retstr="${_retstr} ${_iphead}${_iphead:+.}${_ipcount}${_iptail:+.}${_iptail}${_plen:+/}${_plen}" 881 if [ $_ipcount -gt $(($_iplow + $netif_ipexpand_max)) ]; then 882 warn "Range specification is too large (${_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." 883 break 884 else 885 _ipcount=$(($_ipcount + 1)) 886 fi 887 # Forcibly set /32 for remaining aliases. 888 _plen=32 889 done 890 done 891 892 for _c in $_retstr; do 893 ifalias_expand_addr_inet $_action $_c $_exargs 894 done 895} 896 897# ifalias_expand_addr_inet6 action addr 898# Helper function for ifalias_expand_addr(). Handles IPv6. 899# 900ifalias_expand_addr_inet6() 901{ 902 local _action _arg _cidr _cidr_addr _exargs 903 local _ipaddr _plen _ipleft _ipright _iplow _iphigh _ipcount 904 local _ipv4part 905 local _retstr _c 906 _action=$1 907 _arg=$2 908 shift 2 909 _exargs=$* 910 _retstr= 911 912 case $_action:$_arg:$_exargs in 913 *:*--*:*) return ;; # invalid 914 tmp:*[0-9a-zA-Z]-[0-9a-zA-Z]*:*)# to be expanded 915 _action="alias" 916 ;; 917 *:*[0-9a-zA-Z]-[0-9a-zA-Z]*:*) # to be expanded 918 ;; 919 tmp:*:*prefixlen*) # already expanded w/ prefixlen option 920 echo ${_arg%/[0-9]*} $_exargs && return 921 ;; 922 tmp:*:*) # already expanded w/o prefixlen option 923 echo $_arg $_exargs && return 924 ;; 925 *:*:*prefixlen*) # already expanded w/ prefixlen option 926 echo inet6 ${_arg%/[0-9]*} $_exargs && return 927 ;; 928 *:*:*) # already expanded w/o prefixlen option 929 echo inet6 $_arg $_exargs && return 930 ;; 931 esac 932 933 for _cidr in $_arg; do 934 _ipaddr="${_cidr%%/*}" 935 _plen="${_cidr##*/}" 936 937 case $_action:$_ipaddr:$_cidr in 938 -alias:*:*) unset _plen ;; 939 *:$_cidr:$_ipaddr) unset _plen ;; 940 esac 941 942 if [ "${_ipaddr%:*.*.*.*}" = "$_ipaddr" ]; then 943 # Handle !v4mapped && !v4compat addresses. 944 945 # The default prefix length is 64. 946 case $_ipaddr:$_cidr in 947 $_cidr:$_ipaddr) _plen="64" ;; 948 esac 949 _ipleft=${_ipaddr%-*} 950 _ipright=${_ipaddr#*-} 951 _iplow=${_ipleft##*:} 952 _iphigh=${_ipright%%:*} 953 _ipleft=${_ipleft%:*} 954 _ipright=${_ipright#*:} 955 956 if [ "$_iphigh" = "$_ipright" ]; then 957 unset _ipright 958 else 959 _ipright=:$_ipright 960 fi 961 962 if [ -n "$_iplow" -a -n "$_iphigh" ]; then 963 _iplow=$((0x$_iplow)) 964 _iphigh=$((0x$_iphigh)) 965 _ipcount=$_iplow 966 while [ $_ipcount -le $_iphigh ]; do 967 _r=`printf "%s:%04x%s%s" \ 968 $_ipleft $_ipcount $_ipright \ 969 ${_plen:+/}$_plen` 970 _retstr="$_retstr $_r" 971 if [ $_ipcount -gt $(($_iplow + $netif_ipexpand_max)) ] 972 then 973 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" "$_ipright") was processed. Increase \$netif_ipexpand_max in rc.conf." 974 break 975 else 976 _ipcount=$(($_ipcount + 1)) 977 fi 978 done 979 else 980 _retstr="${_ipaddr}${_plen:+/}${_plen}" 981 fi 982 983 for _c in $_retstr; do 984 ifalias_expand_addr_inet6 $_action $_c $_exargs 985 done 986 else 987 # v4mapped/v4compat should handle as an IPv4 alias 988 _ipv4part=${_ipaddr##*:} 989 990 # Adjust prefix length if any. If not, set the 991 # default prefix length as 32. 992 case $_ipaddr:$_cidr in 993 $_cidr:$_ipaddr) _plen=32 ;; 994 *) _plen=$(($_plen - 96)) ;; 995 esac 996 997 _retstr=`ifalias_expand_addr_inet \ 998 tmp ${_ipv4part}${_plen:+/}${_plen}` 999 for _c in $_retstr; do 1000 ifalias_expand_addr_inet $_action $_c $_exargs 1001 done 1002 fi 1003 done 1004} 1005 1006# ifalias_af_common_handler if af action args 1007# Helper function for ifalias_af_common(). 1008# 1009ifalias_af_common_handler() 1010{ 1011 local _ret _if _af _action _args _c _tmpargs 1012 1013 _ret=1 1014 _if=$1 1015 _af=$2 1016 _action=$3 1017 shift 3 1018 _args=$* 1019 1020 case $_args in 1021 ${_af}\ *) ;; 1022 *) return ;; 1023 esac 1024 1025 # link(ether) does not support address removal. 1026 case $_af:$_action in 1027 link:-alias|ether:-alias) return ;; 1028 esac 1029 1030 _tmpargs= 1031 for _c in $_args; do 1032 case $_c in 1033 ${_af}) 1034 case $_tmpargs in 1035 ${_af}\ *[0-9a-fA-F]-*) 1036 ifalias_af_common_handler $_if $_af $_action \ 1037 `ifalias_expand_addr $_af $_action ${_tmpargs#${_af}\ }` 1038 ;; 1039 ${_af}\ *) 1040 ${IFCONFIG_CMD} $_if $_tmpargs $_action && _ret=0 1041 ;; 1042 esac 1043 _tmpargs=$_af 1044 ;; 1045 *) 1046 _tmpargs="$_tmpargs $_c" 1047 ;; 1048 esac 1049 done 1050 # Process the last component if any. 1051 if [ -n "$_tmpargs}" ]; then 1052 case $_tmpargs in 1053 ${_af}\ *[0-9a-fA-F]-*) 1054 ifalias_af_common_handler $_if $_af $_action \ 1055 `ifalias_expand_addr $_af $_action ${_tmpargs#${_af}\ }` 1056 ;; 1057 ${_af}\ *) 1058 ${IFCONFIG_CMD} $_if $_tmpargs $_action && _ret=0 1059 ;; 1060 esac 1061 fi 1062 1063 return $_ret 1064} 1065 1066# ifalias_af_common if af action 1067# Helper function for ifalias(). 1068# 1069ifalias_af_common() 1070{ 1071 local _ret _if _af _action alias ifconfig_args _aliasn _c _tmpargs _iaf 1072 local _vif _punct=".-/+" 1073 1074 _ret=1 1075 _aliasn= 1076 _if=$1 1077 _af=$2 1078 _action=$3 1079 1080 # Normalize $_if before using it in a pattern to list_vars() 1081 ltr "$_if" "$_punct" "_" _vif 1082 1083 # ifconfig_IF_aliasN which starts with $_af 1084 for alias in `list_vars ifconfig_${_vif}_alias[0-9]\* | 1085 sort_lite -nk1.$((9+${#_vif}+7))` 1086 do 1087 eval ifconfig_args=\"\$$alias\" 1088 _iaf= 1089 case $ifconfig_args in 1090 inet\ *) _iaf=inet ;; 1091 inet6\ *) _iaf=inet6 ;; 1092 link\ *) _iaf=link ;; 1093 ether\ *) _iaf=ether ;; 1094 esac 1095 1096 case ${_af}:${_action}:${_iaf}:"${ifconfig_args}" in 1097 ${_af}:*:${_af}:*) 1098 _aliasn="$_aliasn $ifconfig_args" 1099 ;; 1100 ${_af}:*:"":"") 1101 break 1102 ;; 1103 inet:alias:"":*) 1104 _aliasn="$_aliasn inet $ifconfig_args" 1105 warn "\$${alias} needs leading" \ 1106 "\"inet\" keyword for an IPv4 address." 1107 esac 1108 done 1109 1110 # backward compatibility: ipv6_ifconfig_IF_aliasN. 1111 case $_af in 1112 inet6) 1113 for alias in `list_vars ipv6_ifconfig_${_vif}_alias[0-9]\* | 1114 sort_lite -nk1.$((14+${#_vif}+7))` 1115 do 1116 eval ifconfig_args=\"\$$alias\" 1117 case ${_action}:"${ifconfig_args}" in 1118 *:"") 1119 break 1120 ;; 1121 alias:*) 1122 _aliasn="${_aliasn} inet6 ${ifconfig_args}" 1123 warn "\$${alias} is obsolete. " \ 1124 "Use ifconfig_${_vif}_aliasN instead." 1125 ;; 1126 esac 1127 done 1128 esac 1129 1130 # backward compatibility: ipv4_addrs_IF. 1131 for _tmpargs in `get_if_var $_if ipv4_addrs_IF`; do 1132 _aliasn="$_aliasn inet $_tmpargs" 1133 done 1134 1135 # Handle ifconfig_IF_aliases, ifconfig_IF_aliasN, and the others. 1136 _tmpargs= 1137 for _c in `get_if_var $_if ifconfig_IF_aliases` $_aliasn; do 1138 case $_c in 1139 inet|inet6|link|ether) 1140 case $_tmpargs in 1141 ${_af}\ *) 1142 eval ifalias_af_common_handler $_if $_af $_action $_tmpargs && _ret=0 1143 ;; 1144 esac 1145 _tmpargs=$_c 1146 ;; 1147 *) 1148 _tmpargs="$_tmpargs $_c" 1149 esac 1150 done 1151 # Process the last component 1152 case $_tmpargs in 1153 ${_af}\ *) 1154 ifalias_af_common_handler $_if $_af $_action $_tmpargs && _ret=0 1155 ;; 1156 esac 1157 1158 return $_ret 1159} 1160 1161# ipv6_prefix_hostid_addr_common if action 1162# Add or remove IPv6 prefix + hostid addr on the interface $if 1163# 1164ipv6_prefix_hostid_addr_common() 1165{ 1166 local _if _action prefix j 1167 _if=$1 1168 _action=$2 1169 prefix=`get_if_var ${_if} ipv6_prefix_IF` 1170 1171 if [ -n "${prefix}" ]; then 1172 for j in ${prefix}; do 1173 # The default prefixlen is 64. 1174 plen=${j#*/} 1175 case $j:$plen in 1176 $plen:$j) plen=64 ;; 1177 *) j=${j%/*} ;; 1178 esac 1179 1180 # Normalize the last part by removing ":" 1181 j=${j%::*} 1182 j=${j%:} 1183 ${IFCONFIG_CMD} ${_if} inet6 $j:: \ 1184 prefixlen $plen eui64 ${_action} 1185 1186 # if I am a router, add subnet router 1187 # anycast address (RFC 2373). 1188 if checkyesno ipv6_gateway_enable; then 1189 ${IFCONFIG_CMD} ${_if} inet6 $j:: \ 1190 prefixlen $plen ${_action} anycast 1191 fi 1192 done 1193 fi 1194} 1195 1196# ipv6_accept_rtadv_up if 1197# Enable accepting Router Advertisement and send Router 1198# Solicitation message 1199ipv6_accept_rtadv_up() 1200{ 1201 if ipv6_autoconfif $1; then 1202 ${IFCONFIG_CMD} $1 inet6 accept_rtadv up 1203 if ! checkyesno rtsold_enable; then 1204 rtsol ${rtsol_flags} $1 1205 fi 1206 fi 1207} 1208 1209# ipv6_accept_rtadv_down if 1210# Disable accepting Router Advertisement 1211ipv6_accept_rtadv_down() 1212{ 1213 if ipv6_autoconfif $1; then 1214 ${IFCONFIG_CMD} $1 inet6 -accept_rtadv 1215 fi 1216} 1217 1218# ifscript_up if 1219# Evaluate a startup script for the $if interface. 1220# It returns 0 if a script was found and processed or 1221# 1 if no script was found. 1222# 1223ifscript_up() 1224{ 1225 if [ -r /etc/start_if.$1 ]; then 1226 . /etc/start_if.$1 1227 return 0 1228 else 1229 return 1 1230 fi 1231} 1232 1233# ifscript_down if 1234# Evaluate a shutdown script for the $if interface. 1235# It returns 0 if a script was found and processed or 1236# 1 if no script was found. 1237# 1238ifscript_down() 1239{ 1240 if [ -r /etc/stop_if.$1 ]; then 1241 . /etc/stop_if.$1 1242 return 0 1243 else 1244 return 1 1245 fi 1246} 1247 1248# wlan_up 1249# Create IEEE802.11 interfaces. 1250# 1251wlan_up() 1252{ 1253 local _list _iflist parent child_wlans child create_args debug_flags 1254 _list= 1255 _iflist=$* 1256 1257 # Parse wlans_$parent="$child ..." 1258 for parent in `set | sed -nE 's/wlans_([a-z]+[0-9]+)=.*/\1/p'`; do 1259 child_wlans=`get_if_var $parent wlans_IF` 1260 for child in ${child_wlans}; do 1261 create_args="wlandev $parent `get_if_var $child create_args_IF`" 1262 debug_flags="`get_if_var $child wlandebug_IF`" 1263 case $_iflist in 1264 ""|$child|$child\ *|*\ $child\ *|*\ $child) ;; 1265 *) continue ;; 1266 esac 1267 # Skip if ${child} already exists. 1268 if ${IFCONFIG_CMD} $child > /dev/null 2>&1; then 1269 continue 1270 fi 1271 if expr $child : 'wlan[0-9][0-9]*$' >/dev/null 2>&1; then 1272 ${IFCONFIG_CMD} $child create ${create_args} && cfg=0 1273 else 1274 ${IFCONFIG_CMD} wlan create ${create_args} name $child && cfg=0 1275 fi 1276 if [ $? -eq 0 ]; then 1277 _list="$_list $child" 1278 fi 1279 if [ -n "${debug_flags}" ]; then 1280 wlandebug -i $child ${debug_flags} 1281 fi 1282 done 1283 done 1284 if [ -n "${_list# }" ]; then 1285 echo "Created wlan(4) interfaces: ${_list# }." 1286 fi 1287 debug "Created wlan(4)s: ${_list# }" 1288} 1289 1290# wlan_down 1291# Destroy IEEE802.11 interfaces. 1292# 1293wlan_down() 1294{ 1295 local _list _iflist parent child_wlans child 1296 _list= 1297 _iflist=$* 1298 1299 # Parse wlans_$parent="$child ..." 1300 for parent in `set | sed -nE 's/wlans_([a-z]+[0-9]+)=.*/\1/p'`; do 1301 child_wlans=`get_if_var $parent wlans_IF` 1302 for child in ${child_wlans}; do 1303 case $_iflist in 1304 ""|$child|$child\ *|*\ $child\ *|*\ $child) ;; 1305 *) continue ;; 1306 esac 1307 # Skip if ${child} doesn't exists. 1308 if ! ${IFCONFIG_CMD} $child > /dev/null 2>&1; then 1309 continue 1310 fi 1311 ${IFCONFIG_CMD} -n ${child} destroy 1312 if [ $? -eq 0 ]; then 1313 _list="$_list $child" 1314 fi 1315 done 1316 done 1317 if [ -n "${_list# }" ]; then 1318 echo "Destroyed wlan(4) interfaces: ${_list# }." 1319 fi 1320 debug "Destroyed wlan(4)s: ${_list# }" 1321} 1322 1323# clone_up 1324# Create cloneable interfaces. 1325# 1326clone_up() 1327{ 1328 local _list ifn ifopt _iflist _n tmpargs 1329 _list= 1330 _iflist=$* 1331 1332 # create_args_IF 1333 for ifn in ${cloned_interfaces}; do 1334 # Parse ifn:ifopt. 1335 OIFS=$IFS; IFS=:; set -- $ifn; ifn=$1; ifopt=$2; IFS=$OIFS 1336 case $_iflist in 1337 ""|$ifn|$ifn\ *|*\ $ifn\ *|*\ $ifn) ;; 1338 *) continue ;; 1339 esac 1340 case $ifn in 1341 epair[0-9]*) 1342 # epair(4) uses epair[0-9] for creation and 1343 # epair[0-9][ab] for configuration. 1344 # 1345 # Skip if ${ifn}a or ${ifn}b already exist. 1346 if ${IFCONFIG_CMD} ${ifn}a > /dev/null 2>&1; then 1347 continue 1348 elif ${IFCONFIG_CMD} ${ifn}b > /dev/null 2>&1; then 1349 continue 1350 fi 1351 ${IFCONFIG_CMD} ${ifn} create \ 1352 `get_if_var ${ifn} create_args_IF` 1353 if [ $? -eq 0 ]; then 1354 _list="$_list ${ifn}a ${ifn}b" 1355 fi 1356 ;; 1357 *) 1358 # Skip if ${ifn} already exists. 1359 if ${IFCONFIG_CMD} $ifn > /dev/null 2>&1; then 1360 continue 1361 fi 1362 ${IFCONFIG_CMD} ${ifn} create \ 1363 `get_if_var ${ifn} create_args_IF` 1364 if [ $? -eq 0 ]; then 1365 _list="$_list $ifn" 1366 fi 1367 esac 1368 done 1369 if [ -n "$gif_interfaces" ]; then 1370 warn "\$gif_interfaces is obsolete. Use \$cloned_interfaces instead." 1371 fi 1372 for ifn in ${gif_interfaces}; do 1373 # Parse ifn:ifopt. 1374 OIFS=$IFS; IFS=:; set -- $ifn; ifn=$1; ifopt=$2; IFS=$OIFS 1375 case $_iflist in 1376 ""|$ifn|$ifn\ *|*\ $ifn\ *|*\ $ifn) ;; 1377 *) continue ;; 1378 esac 1379 # Skip if ifn already exists. 1380 if ${IFCONFIG_CMD} $ifn > /dev/null 2>&1; then 1381 continue 1382 fi 1383 case $ifn in 1384 gif[0-9]*) 1385 ${IFCONFIG_CMD} $ifn create 1386 ;; 1387 *) 1388 _n=$(${IFCONFIG_CMD} gif create) 1389 ${IFCONFIG_CMD} $_n name $ifn 1390 ;; 1391 esac 1392 if [ $? -eq 0 ]; then 1393 _list="$_list $ifn" 1394 fi 1395 tmpargs=$(get_if_var $ifn gifconfig_IF) 1396 eval ifconfig_${ifn}=\"\$ifconfig_${ifn} tunnel \$tmpargs\" 1397 done 1398 if [ -n "${_list# }" ]; then 1399 echo "Created clone interfaces: ${_list# }." 1400 fi 1401 debug "Cloned: ${_list# }" 1402} 1403 1404# clone_down 1405# Destroy cloned interfaces. Destroyed interfaces are echoed to 1406# standard output. 1407# 1408clone_down() 1409{ 1410 local _list ifn _difn ifopt _iflist _sticky 1411 _list= 1412 _iflist=$* 1413 1414 : ${cloned_interfaces_sticky:=NO} 1415 if checkyesno cloned_interfaces_sticky; then 1416 _sticky=1 1417 else 1418 _sticky=0 1419 fi 1420 for ifn in ${cloned_interfaces} ${gif_interfaces}; do 1421 # Parse ifn:ifopt. 1422 OIFS=$IFS; IFS=:; set -- $ifn; ifn=$1; ifopt=$2; IFS=$OIFS 1423 case $ifopt:$_sticky in 1424 sticky:*) continue ;; # :sticky => not destroy 1425 nosticky:*) ;; # :nosticky => destroy 1426 *:1) continue ;; # global sticky knob == 1 1427 esac 1428 case $_iflist in 1429 ""|$ifn|$ifn\ *|*\ $ifn\ *|*\ $ifn) ;; 1430 *) continue ;; 1431 esac 1432 case $ifn in 1433 epair[0-9]*) 1434 # Note: epair(4) uses epair[0-9] for removal and 1435 # epair[0-9][ab] for configuration. 1436 # 1437 # Skip if both of ${ifn}a and ${ifn}b do not exist. 1438 if ${IFCONFIG_CMD} ${ifn}a > /dev/null 2>&1; then 1439 _difn=${ifn}a 1440 elif ${IFCONFIG_CMD} ${ifn}b > /dev/null 2>&1; then 1441 _difn=${ifn}b 1442 else 1443 continue 1444 fi 1445 ${IFCONFIG_CMD} -n $_difn destroy 1446 if [ $? -eq 0 ]; then 1447 _list="$_list ${ifn}a ${ifn}b" 1448 fi 1449 ;; 1450 *) 1451 # Skip if ifn does not exist. 1452 if ! ${IFCONFIG_CMD} $ifn > /dev/null 2>&1; then 1453 continue 1454 fi 1455 ${IFCONFIG_CMD} -n ${ifn} destroy 1456 if [ $? -eq 0 ]; then 1457 _list="$_list $ifn" 1458 fi 1459 ;; 1460 esac 1461 done 1462 if [ -n "${_list# }" ]; then 1463 echo "Destroyed clone interfaces: ${_list# }." 1464 fi 1465 debug "Destroyed clones: ${_list# }" 1466} 1467 1468# childif_create 1469# Create and configure child interfaces. Return 0 if child 1470# interfaces are created. 1471# 1472childif_create() 1473{ 1474 local cfg child child_vlans create_args debug_flags ifn i 1475 cfg=1 1476 ifn=$1 1477 1478 # Create vlan interfaces 1479 child_vlans=`get_if_var $ifn vlans_IF` 1480 1481 if [ -n "${child_vlans}" ]; then 1482 load_kld if_vlan 1483 fi 1484 1485 for child in ${child_vlans}; do 1486 if expr $child : '[1-9][0-9]*$' >/dev/null 2>&1; then 1487 child="${ifn}.${child}" 1488 create_args=`get_if_var $child create_args_IF` 1489 ${IFCONFIG_CMD} $child create ${create_args} && cfg=0 1490 else 1491 create_args="vlandev $ifn `get_if_var $child create_args_IF`" 1492 if expr $child : 'vlan[0-9][0-9]*$' >/dev/null 2>&1; then 1493 ${IFCONFIG_CMD} $child create ${create_args} && cfg=0 1494 else 1495 i=`${IFCONFIG_CMD} vlan create ${create_args}` 1496 ${IFCONFIG_CMD} $i name $child && cfg=0 1497 fi 1498 fi 1499 if autoif $child; then 1500 ifn_start $child 1501 fi 1502 done 1503 1504 return ${cfg} 1505} 1506 1507# childif_destroy 1508# Destroy child interfaces. 1509# 1510childif_destroy() 1511{ 1512 local cfg child child_vlans ifn 1513 cfg=1 1514 1515 child_vlans=`get_if_var $ifn vlans_IF` 1516 for child in ${child_vlans}; do 1517 if expr $child : '[1-9][0-9]*$' >/dev/null 2>&1; then 1518 child="${ifn}.${child}" 1519 fi 1520 if ! ifexists $child; then 1521 continue 1522 fi 1523 ${IFCONFIG_CMD} -n $child destroy && cfg=0 1524 done 1525 1526 return ${cfg} 1527} 1528 1529# ng_mkpeer 1530# Create netgraph nodes. 1531# 1532ng_mkpeer() 1533{ 1534 ngctl -f - 2> /dev/null <<EOF 1535mkpeer $* 1536msg dummy nodeinfo 1537EOF 1538} 1539 1540# ng_create_one 1541# Create netgraph nodes. 1542# 1543ng_create_one() 1544{ 1545 local t 1546 1547 ng_mkpeer $* | while read line; do 1548 t=`expr "${line}" : '.* name="\([a-z]*[0-9]*\)" .*'` 1549 if [ -n "${t}" ]; then 1550 echo ${t} 1551 return 1552 fi 1553 done 1554} 1555 1556# ifnet_rename [ifname] 1557# Rename interfaces if ifconfig_IF_name is defined. 1558# 1559ifnet_rename() 1560{ 1561 local _if _ifname 1562 1563 # ifconfig_IF_name 1564 for _if in ${*:-$(${IFCONFIG_CMD} -l)}; do 1565 _ifname=`get_if_var $_if ifconfig_IF_name` 1566 if [ ! -z "$_ifname" ]; then 1567 ${IFCONFIG_CMD} $_if name $_ifname 1568 fi 1569 done 1570 1571 return 0 1572} 1573 1574# list_net_interfaces type 1575# List all network interfaces. The type of interface returned 1576# can be controlled by the type argument. The type 1577# argument can be any of the following: 1578# nodhcp - all interfaces, excluding DHCP configured interfaces 1579# dhcp - list only DHCP configured interfaces 1580# noautoconf - all interfaces, excluding IPv6 Stateless 1581# Address Autoconf configured interfaces 1582# autoconf - list only IPv6 Stateless Address Autoconf 1583# configured interfaces 1584# If no argument is specified all network interfaces are output. 1585# Note that the list will include cloned interfaces if applicable. 1586# Cloned interfaces must already exist to have a chance to appear 1587# in the list if ${network_interfaces} is set to `auto'. 1588# 1589list_net_interfaces() 1590{ 1591 local type _tmplist _list _autolist _lo _if 1592 type=$1 1593 1594 # Get a list of ALL the interfaces and make lo0 first if it's there. 1595 # 1596 _tmplist= 1597 case ${network_interfaces} in 1598 [Aa][Uu][Tt][Oo]) 1599 _autolist="`${IFCONFIG_CMD} -l`" 1600 _lo= 1601 for _if in ${_autolist} ; do 1602 if autoif $_if; then 1603 if [ "$_if" = "lo0" ]; then 1604 _lo="lo0 " 1605 else 1606 _tmplist="${_tmplist} ${_if}" 1607 fi 1608 fi 1609 done 1610 _tmplist="${_lo}${_tmplist# }" 1611 ;; 1612 *) 1613 for _if in ${network_interfaces} ${cloned_interfaces}; do 1614 # epair(4) uses epair[0-9] for creation and 1615 # epair[0-9][ab] for configuration. 1616 case $_if in 1617 epair[0-9]*) 1618 _tmplist="$_tmplist ${_if}a ${_if}b" 1619 ;; 1620 *) 1621 _tmplist="$_tmplist $_if" 1622 ;; 1623 esac 1624 done 1625 # 1626 # lo0 is effectively mandatory, so help prevent foot-shooting 1627 # 1628 case "$_tmplist" in 1629 lo0|'lo0 '*|*' lo0'|*' lo0 '*) 1630 # This is fine, do nothing 1631 _tmplist="${_tmplist# }" 1632 ;; 1633 *) 1634 _tmplist="lo0 ${_tmplist# }" 1635 ;; 1636 esac 1637 ;; 1638 esac 1639 1640 _list= 1641 case "$type" in 1642 nodhcp) 1643 for _if in ${_tmplist} ; do 1644 if ! dhcpif $_if && \ 1645 [ -n "`_ifconfig_getargs $_if`" ]; then 1646 _list="${_list# } ${_if}" 1647 fi 1648 done 1649 ;; 1650 dhcp) 1651 for _if in ${_tmplist} ; do 1652 if dhcpif $_if; then 1653 _list="${_list# } ${_if}" 1654 fi 1655 done 1656 ;; 1657 noautoconf) 1658 for _if in ${_tmplist} ; do 1659 if ! ipv6_autoconfif $_if && \ 1660 [ -n "`_ifconfig_getargs $_if ipv6`" ]; then 1661 _list="${_list# } ${_if}" 1662 fi 1663 done 1664 ;; 1665 autoconf) 1666 for _if in ${_tmplist} ; do 1667 if ipv6_autoconfif $_if; then 1668 _list="${_list# } ${_if}" 1669 fi 1670 done 1671 ;; 1672 *) 1673 _list=${_tmplist} 1674 ;; 1675 esac 1676 1677 echo $_list 1678 1679 return 0 1680} 1681 1682# get_default_if -address_family 1683# Get the interface of the default route for the given address family. 1684# The -address_family argument must be suitable passing to route(8). 1685# 1686get_default_if() 1687{ 1688 local routeget oldifs defif line 1689 defif= 1690 oldifs="$IFS" 1691 IFS=" 1692" 1693 for line in `route -n get $1 default 2>/dev/null`; do 1694 case $line in 1695 *interface:*) 1696 defif=${line##*: } 1697 ;; 1698 esac 1699 done 1700 IFS=${oldifs} 1701 1702 echo $defif 1703} 1704 1705# hexdigit arg 1706# Echo decimal number $arg (single digit) in hexadecimal format. 1707hexdigit() 1708{ 1709 printf '%x\n' "$1" 1710} 1711 1712# hexprint arg 1713# Echo decimal number $arg (multiple digits) in hexadecimal format. 1714hexprint() 1715{ 1716 printf '%x\n' "$1" 1717} 1718 1719is_wired_interface() 1720{ 1721 local media 1722 1723 case `${IFCONFIG_CMD} $1 2>/dev/null` in 1724 *media:?Ethernet*) media=Ethernet ;; 1725 esac 1726 1727 test "$media" = "Ethernet" 1728} 1729 1730# network6_getladdr if [flag] 1731# Echo link-local address from $if if any. 1732# If flag is defined, tentative ones will be excluded. 1733network6_getladdr() 1734{ 1735 local _if _flag proto addr rest 1736 _if=$1 1737 _flag=$2 1738 1739 ${IFCONFIG_CMD} $_if 2>/dev/null | while read proto addr rest; do 1740 case "${proto}/${addr}/${_flag}/${rest}" in 1741 inet6/fe80::*//*) 1742 echo ${addr} 1743 ;; 1744 inet6/fe80:://*tentative*) # w/o flag 1745 sleep `${SYSCTL_N} net.inet6.ip6.dad_count` 1746 network6_getladdr $_if $_flags 1747 ;; 1748 inet6/fe80::/*/*tentative*) # w/ flag 1749 echo ${addr} 1750 ;; 1751 *) 1752 continue 1753 ;; 1754 esac 1755 1756 return 1757 done 1758} 1759