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 fi 138 139 # backward compatibility: $ipv6_enable 140 case $ipv6_enable in 141 [Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1) 142 case $1 in 143 bridge[0-9]*) 144 # No accept_rtadv by default on if_bridge(4) 145 # to avoid a conflict with the member 146 # interfaces. 147 ;; 148 *) 149 if ! checkyesno ipv6_gateway_enable; then 150 _ipv6_opts="${_ipv6_opts} accept_rtadv" 151 fi 152 ;; 153 esac 154 ;; 155 esac 156 157 case $ipv6_cpe_wanif in 158 $1) 159 _ipv6_opts="${_ipv6_opts} -no_radr accept_rtadv" 160 ;; 161 esac 162 163 if [ -n "${_ipv6_opts}" ]; then 164 ${IFCONFIG_CMD} $1 inet6 ${_ipv6_opts} 165 fi 166 fi 167 168 # ifconfig_IF 169 ifconfig_args=`ifconfig_getargs $1` 170 if [ -n "${ifconfig_args}" ]; then 171 eval ${IFCONFIG_CMD} $1 ${ifconfig_args} 172 _cfg=0 173 fi 174 175 # inet6 specific 176 if ! noafif $1 && afexists inet6; then 177 # ifconfig_IF_ipv6 178 ifconfig_args=`ifconfig_getargs $1 ipv6` 179 if [ -n "${ifconfig_args}" ]; then 180 # backward compatibility: inet6 keyword 181 case "${ifconfig_args}" in 182 :*|[0-9a-fA-F]*:*) 183 warn "\$ifconfig_$1_ipv6 needs leading" \ 184 "\"inet6\" keyword for an IPv6 address." 185 ifconfig_args="inet6 ${ifconfig_args}" 186 ;; 187 esac 188 ${IFCONFIG_CMD} $1 inet6 -ifdisabled 189 eval ${IFCONFIG_CMD} $1 ${ifconfig_args} 190 _cfg=0 191 fi 192 193 # $ipv6_prefix_IF will be handled in 194 # ipv6_prefix_hostid_addr_common(). 195 ifconfig_args=`get_if_var $1 ipv6_prefix_IF` 196 if [ -n "${ifconfig_args}" ]; then 197 ${IFCONFIG_CMD} $1 inet6 -ifdisabled 198 _cfg=0 199 fi 200 201 # backward compatibility: $ipv6_ifconfig_IF 202 ifconfig_args=`get_if_var $1 ipv6_ifconfig_IF` 203 if [ -n "${ifconfig_args}" ]; then 204 warn "\$ipv6_ifconfig_$1 is obsolete." \ 205 " Use ifconfig_$1_ipv6 instead." 206 ${IFCONFIG_CMD} $1 inet6 -ifdisabled 207 eval ${IFCONFIG_CMD} $1 inet6 ${ifconfig_args} 208 _cfg=0 209 fi 210 fi 211 212 ifalias $1 link alias 213 ifalias $1 ether alias 214 215 _ifconfig_descr=`get_if_var $1 ifconfig_IF_descr` 216 if [ -n "${_ifconfig_descr}" ]; then 217 ${IFCONFIG_CMD} $1 description "${_ifconfig_descr}" 218 fi 219 220 if wpaif $1; then 221 /etc/rc.d/wpa_supplicant start $1 222 _cfg=0 # XXX: not sure this should count 223 elif hostapif $1; then 224 /etc/rc.d/hostapd start $1 225 _cfg=0 226 elif [ ${_cfg} -eq 0 ]; then 227 ${IFCONFIG_CMD} $1 up 228 fi 229 230 if ! noafif $1 && afexists inet6; then 231 ipv6_accept_rtadv_up $1 && _cfg=0 232 fi 233 234 if dhcpif $1; then 235 if [ $_cfg -ne 0 ] ; then 236 ${IFCONFIG_CMD} $1 up 237 fi 238 if syncdhcpif $1; then 239 /etc/rc.d/dhclient start $1 240 fi 241 _cfg=0 242 fi 243 244 return $_cfg 245} 246 247# ifconfig_down if 248# returns 1 if wpa_supplicant or dhclient was stopped or 249# the interface exists. 250# 251ifconfig_down() 252{ 253 local _cfg 254 _cfg=1 255 256 if wpaif $1; then 257 /etc/rc.d/wpa_supplicant stop $1 258 _cfg=0 259 elif hostapif $1; then 260 /etc/rc.d/hostapd stop $1 261 _cfg=0 262 elif 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=0 691 692 return $_ret 693} 694 695# ipv4_down if 696# remove IPv4 addresses from the interface $if 697ipv4_down() 698{ 699 local _if _ifs _ret inetList oldifs _inet 700 _if=$1 701 _ifs="^" 702 _ret=1 703 704 ifalias ${_if} inet -alias && _ret=0 705 706 inetList="`${IFCONFIG_CMD} ${_if} | grep 'inet ' | tr "\n\t" "$_ifs"`" 707 708 oldifs="$IFS" 709 IFS="$_ifs" 710 for _inet in $inetList ; do 711 # get rid of extraneous line 712 case $_inet in 713 inet[[:space:]]*) ;; 714 *) continue ;; 715 esac 716 717 _inet=`expr "$_inet" : '.*\(inet \([0-9]\{1,3\}\.\)\{3\}[0-9]\{1,3\}\).*'` 718 719 IFS="$oldifs" 720 ${IFCONFIG_CMD} ${_if} ${_inet} delete 721 IFS="$_ifs" 722 _ret=0 723 done 724 IFS="$oldifs" 725 726 return $_ret 727} 728 729# ipv6_down if 730# remove IPv6 addresses from the interface $if 731ipv6_down() 732{ 733 local _if _ifs _ret inetList oldifs _inet6 734 _if=$1 735 _ifs="^" 736 _ret=1 737 738 if ! ipv6if $_if; then 739 return 0 740 fi 741 742 ipv6_accept_rtadv_down ${_if} && _ret=0 743 ipv6_prefix_hostid_addr_common ${_if} -alias && _ret=0 744 ifalias ${_if} inet6 -alias && _ret=0 745 746 inetList="`${IFCONFIG_CMD} ${_if} | grep 'inet6 ' | tr "\n\t" "$_ifs"`" 747 748 oldifs="$IFS" 749 IFS="$_ifs" 750 for _inet6 in $inetList ; do 751 # get rid of extraneous line 752 case $_inet6 in 753 inet6[[:space:]]*) ;; 754 *) continue ;; 755 esac 756 757 _inet6=`expr "$_inet6" : '.*\(inet6 \([0-9a-f:]*\)\).*'` 758 759 IFS="$oldifs" 760 ${IFCONFIG_CMD} ${_if} ${_inet6} -alias 761 IFS="$_ifs" 762 _ret=0 763 done 764 IFS="$oldifs" 765 766 return $_ret 767} 768 769# ifalias if af action 770# Configure or remove aliases for network interface $if. 771# It returns 0 if at least one alias was configured or 772# removed, or 1 if there were none. 773# 774ifalias() 775{ 776 local _ret 777 _ret=1 778 779 afexists $2 || return $_ret 780 781 case "$2" in 782 inet|inet6|link|ether) 783 ifalias_af_common $1 $2 $3 && _ret=0 784 ;; 785 esac 786 787 return $_ret 788} 789 790# ifalias_expand_addr af action addr 791# Expand address range ("N-M") specification in addr. 792# "addr" must not include an address-family keyword. 793# The results will include an address-family keyword. 794# 795ifalias_expand_addr() 796{ 797 local _af _action 798 799 _af=$1 800 _action=$2 801 shift 2 802 803 afexists $_af || return 804 ifalias_expand_addr_$_af $_action $* 805} 806 807# ifalias_expand_addr_inet action addr 808# Helper function for ifalias_expand_addr(). Handles IPv4. 809# 810ifalias_expand_addr_inet() 811{ 812 local _action _arg _cidr _cidr_addr _exargs 813 local _ipaddr _plen _range _iphead _iptail _iplow _iphigh _ipcount 814 local _retstr _c 815 _action=$1 816 _arg=$2 817 shift 2 818 _exargs=$* 819 _retstr= 820 821 case $_action:$_arg:$_exargs in 822 *:*--*) return ;; # invalid 823 tmp:*[0-9]-[0-9]*:*) # to be expanded 824 _action="alias" 825 ;; 826 *:*[0-9]-[0-9]*:*) # to be expanded 827 ;; 828 tmp:*:*netmask*) # already expanded w/ netmask option 829 echo ${_arg%/[0-9]*} $_exargs && return 830 ;; 831 tmp:*:*) # already expanded w/o netmask option 832 echo $_arg $_exargs && return 833 ;; 834 *:*:*netmask*) # already expanded w/ netmask option 835 echo inet ${_arg%/[0-9]*} $_exargs && return 836 ;; 837 *:*:*) # already expanded w/o netmask option 838 echo inet $_arg $_exargs && return 839 ;; 840 esac 841 842 for _cidr in $_arg; do 843 _ipaddr=${_cidr%%/*} 844 _plen=${_cidr##*/} 845 # When subnet prefix length is not specified, use /32. 846 case $_plen in 847 $_ipaddr) _plen=32 ;; # "/" character not found 848 esac 849 850 OIFS=$IFS 851 IFS=. set -- $_ipaddr 852 _range= 853 _iphead= 854 _iptail= 855 for _c in $@; do 856 case $_range:$_c in 857 :[0-9]*-[0-9]*) 858 _range=$_c 859 ;; 860 :*) 861 _iphead="${_iphead}${_iphead:+.}${_c}" 862 ;; 863 *:*) 864 _iptail="${_iptail}${_iptail:+.}${_c}" 865 ;; 866 esac 867 done 868 IFS=$OIFS 869 _iplow=${_range%-*} 870 _iphigh=${_range#*-} 871 872 # clear netmask when removing aliases 873 if [ "$_action" = "-alias" ]; then 874 _plen="" 875 fi 876 877 _ipcount=$_iplow 878 while [ "$_ipcount" -le "$_iphigh" ]; do 879 _retstr="${_retstr} ${_iphead}${_iphead:+.}${_ipcount}${_iptail:+.}${_iptail}${_plen:+/}${_plen}" 880 if [ $_ipcount -gt $(($_iplow + $netif_ipexpand_max)) ]; then 881 warn "Range specification is too large (${_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." 882 break 883 else 884 _ipcount=$(($_ipcount + 1)) 885 fi 886 # Forcibly set /32 for remaining aliases. 887 _plen=32 888 done 889 done 890 891 for _c in $_retstr; do 892 ifalias_expand_addr_inet $_action $_c $_exargs 893 done 894} 895 896# ifalias_expand_addr_inet6 action addr 897# Helper function for ifalias_expand_addr(). Handles IPv6. 898# 899ifalias_expand_addr_inet6() 900{ 901 local _action _arg _cidr _cidr_addr _exargs 902 local _ipaddr _plen _ipleft _ipright _iplow _iphigh _ipcount 903 local _ipv4part 904 local _retstr _c 905 _action=$1 906 _arg=$2 907 shift 2 908 _exargs=$* 909 _retstr= 910 911 case $_action:$_arg:$_exargs in 912 *:*--*:*) return ;; # invalid 913 tmp:*[0-9a-zA-Z]-[0-9a-zA-Z]*:*)# to be expanded 914 _action="alias" 915 ;; 916 *:*[0-9a-zA-Z]-[0-9a-zA-Z]*:*) # to be expanded 917 ;; 918 tmp:*:*prefixlen*) # already expanded w/ prefixlen option 919 echo ${_arg%/[0-9]*} $_exargs && return 920 ;; 921 tmp:*:*) # already expanded w/o prefixlen option 922 echo $_arg $_exargs && return 923 ;; 924 *:*:*prefixlen*) # already expanded w/ prefixlen option 925 echo inet6 ${_arg%/[0-9]*} $_exargs && return 926 ;; 927 *:*:*) # already expanded w/o prefixlen option 928 echo inet6 $_arg $_exargs && return 929 ;; 930 esac 931 932 for _cidr in $_arg; do 933 _ipaddr="${_cidr%%/*}" 934 _plen="${_cidr##*/}" 935 936 case $_action:$_ipaddr:$_cidr in 937 -alias:*:*) unset _plen ;; 938 *:$_cidr:$_ipaddr) unset _plen ;; 939 esac 940 941 if [ "${_ipaddr%:*.*.*.*}" = "$_ipaddr" ]; then 942 # Handle !v4mapped && !v4compat addresses. 943 944 # The default prefix length is 64. 945 case $_ipaddr:$_cidr in 946 $_cidr:$_ipaddr) _plen="64" ;; 947 esac 948 _ipleft=${_ipaddr%-*} 949 _ipright=${_ipaddr#*-} 950 _iplow=${_ipleft##*:} 951 _iphigh=${_ipright%%:*} 952 _ipleft=${_ipleft%:*} 953 _ipright=${_ipright#*:} 954 955 if [ "$_iphigh" = "$_ipright" ]; then 956 unset _ipright 957 else 958 _ipright=:$_ipright 959 fi 960 961 if [ -n "$_iplow" -a -n "$_iphigh" ]; then 962 _iplow=$((0x$_iplow)) 963 _iphigh=$((0x$_iphigh)) 964 _ipcount=$_iplow 965 while [ $_ipcount -le $_iphigh ]; do 966 _r=`printf "%s:%04x%s%s" \ 967 $_ipleft $_ipcount $_ipright \ 968 ${_plen:+/}$_plen` 969 _retstr="$_retstr $_r" 970 if [ $_ipcount -gt $(($_iplow + $netif_ipexpand_max)) ] 971 then 972 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" "$_ipright") was processed. Increase \$netif_ipexpand_max in rc.conf." 973 break 974 else 975 _ipcount=$(($_ipcount + 1)) 976 fi 977 done 978 else 979 _retstr="${_ipaddr}${_plen:+/}${_plen}" 980 fi 981 982 for _c in $_retstr; do 983 ifalias_expand_addr_inet6 $_action $_c $_exargs 984 done 985 else 986 # v4mapped/v4compat should handle as an IPv4 alias 987 _ipv4part=${_ipaddr##*:} 988 989 # Adjust prefix length if any. If not, set the 990 # default prefix length as 32. 991 case $_ipaddr:$_cidr in 992 $_cidr:$_ipaddr) _plen=32 ;; 993 *) _plen=$(($_plen - 96)) ;; 994 esac 995 996 _retstr=`ifalias_expand_addr_inet \ 997 tmp ${_ipv4part}${_plen:+/}${_plen}` 998 for _c in $_retstr; do 999 ifalias_expand_addr_inet $_action $_c $_exargs 1000 done 1001 fi 1002 done 1003} 1004 1005# ifalias_af_common_handler if af action args 1006# Helper function for ifalias_af_common(). 1007# 1008ifalias_af_common_handler() 1009{ 1010 local _ret _if _af _action _args _c _tmpargs 1011 1012 _ret=1 1013 _if=$1 1014 _af=$2 1015 _action=$3 1016 shift 3 1017 _args=$* 1018 1019 case $_args in 1020 ${_af}[[:space:]]*) ;; 1021 *) return ;; 1022 esac 1023 1024 # link(ether) does not support address removal. 1025 case $_af:$_action in 1026 link:-alias|ether:-alias) return ;; 1027 esac 1028 1029 _tmpargs= 1030 for _c in $_args; do 1031 case $_c in 1032 ${_af}) 1033 case $_tmpargs in 1034 ${_af}[[:space:]]*[0-9a-fA-F]-*) 1035 ifalias_af_common_handler $_if $_af $_action \ 1036 `ifalias_expand_addr $_af $_action ${_tmpargs#${_af}[[:space:]]}` 1037 ;; 1038 ${_af}[[:space:]]*) 1039 ${IFCONFIG_CMD} $_if $_tmpargs $_action && _ret=0 1040 ;; 1041 esac 1042 _tmpargs=$_af 1043 ;; 1044 *) 1045 _tmpargs="$_tmpargs $_c" 1046 ;; 1047 esac 1048 done 1049 # Process the last component if any. 1050 if [ -n "${_tmpargs}" ]; then 1051 case $_tmpargs in 1052 ${_af}[[:space:]]pass[[:space:]]*) 1053 ${IFCONFIG_CMD} $_if $_tmpargs $_action && _ret=0 1054 ;; 1055 ${_af}[[:space:]]*[0-9a-fA-F]-*) 1056 ifalias_af_common_handler $_if $_af $_action \ 1057 `ifalias_expand_addr $_af $_action ${_tmpargs#${_af}[[:space:]]}` 1058 ;; 1059 ${_af}[[:space:]]*) 1060 ${IFCONFIG_CMD} $_if $_tmpargs $_action && _ret=0 1061 ;; 1062 esac 1063 fi 1064 1065 return $_ret 1066} 1067 1068# ifalias_af_common if af action 1069# Helper function for ifalias(). 1070# 1071ifalias_af_common() 1072{ 1073 local _ret _if _af _action alias ifconfig_args _aliasn _c _tmpargs _iaf 1074 local _vif _punct=".-/+" 1075 1076 _ret=1 1077 _aliasn= 1078 _if=$1 1079 _af=$2 1080 _action=$3 1081 1082 # Normalize $_if before using it in a pattern to list_vars() 1083 ltr "$_if" "$_punct" "_" _vif 1084 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[[:space:]]*) _iaf=inet ;; 1093 inet6[[:space:]]*) _iaf=inet6 ;; 1094 link[[:space:]]*) _iaf=link ;; 1095 ether[[:space:]]*) _iaf=ether ;; 1096 esac 1097 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 1111 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 1131 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 1136 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}[[:space:]]*) 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}[[:space:]]*) 1156 ifalias_af_common_handler $_if $_af $_action $_tmpargs && _ret=0 1157 ;; 1158 esac 1159 1160 return $_ret 1161} 1162 1163# ipv6_prefix_hostid_addr_common if action 1164# Add or remove IPv6 prefix + hostid addr on the interface $if 1165# 1166ipv6_prefix_hostid_addr_common() 1167{ 1168 local _if _action prefix j 1169 _if=$1 1170 _action=$2 1171 prefix=`get_if_var ${_if} ipv6_prefix_IF` 1172 1173 if [ -n "${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=${j%/*} ;; 1180 esac 1181 1182 # Normalize the last part by removing ":" 1183 j=${j%::*} 1184 j=${j%:} 1185 ${IFCONFIG_CMD} ${_if} inet6 $j:: \ 1186 prefixlen $plen eui64 ${_action} 1187 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} 1197 1198# ipv6_accept_rtadv_up if 1199# Enable accepting Router Advertisement and send Router 1200# Solicitation message 1201ipv6_accept_rtadv_up() 1202{ 1203 if ipv6_autoconfif $1; then 1204 ${IFCONFIG_CMD} $1 inet6 accept_rtadv up 1205 if [ -x /sbin/rtsol ]; then 1206 /sbin/rtsol ${rtsol_flags} $1 1207 fi 1208 return 0 1209 fi 1210 return 1 1211} 1212 1213# ipv6_accept_rtadv_down if 1214# Disable accepting Router Advertisement 1215ipv6_accept_rtadv_down() 1216{ 1217 if ipv6_autoconfif $1; then 1218 ${IFCONFIG_CMD} $1 inet6 -accept_rtadv 1219 fi 1220} 1221 1222# ifscript_up if 1223# Evaluate a startup script for the $if interface. 1224# It returns 0 if a script was found and processed or 1225# 1 if no script was found. 1226# 1227ifscript_up() 1228{ 1229 if [ -r /etc/start_if.$1 ]; then 1230 . /etc/start_if.$1 1231 return 0 1232 else 1233 return 1 1234 fi 1235} 1236 1237# ifscript_down if 1238# Evaluate a shutdown script for the $if interface. 1239# It returns 0 if a script was found and processed or 1240# 1 if no script was found. 1241# 1242ifscript_down() 1243{ 1244 if [ -r /etc/stop_if.$1 ]; then 1245 . /etc/stop_if.$1 1246 return 0 1247 else 1248 return 1 1249 fi 1250} 1251 1252# wlan_up 1253# Create IEEE802.11 interfaces. 1254# 1255wlan_up() 1256{ 1257 local _list _iflist parent child_wlans child create_args debug_flags 1258 _list= 1259 _iflist=$* 1260 1261 # Parse wlans_$parent="$child ..." 1262 for parent in `set | sed -nE 's/wlans_([a-z]+[a-z0-9]+[0-9]+)=.*/\1/p'`; do 1263 child_wlans=`get_if_var $parent wlans_IF` 1264 for child in ${child_wlans}; do 1265 create_args="wlandev $parent `get_if_var $child create_args_IF`" 1266 debug_flags="`get_if_var $child wlandebug_IF`" 1267 case $_iflist in 1268 ""|$child|$child[[:space:]]*|*[[:space:]]$child[[:space:]]*|*[[:space:]]$child) ;; 1269 *) continue ;; 1270 esac 1271 # Skip if ${child} already exists. 1272 if ${IFCONFIG_CMD} $child > /dev/null 2>&1; then 1273 continue 1274 fi 1275 if expr $child : 'wlan[0-9][0-9]*$' >/dev/null 2>&1; then 1276 ${IFCONFIG_CMD} $child create ${create_args} && cfg=0 1277 else 1278 ${IFCONFIG_CMD} wlan create ${create_args} name $child && cfg=0 1279 fi 1280 if [ $? -eq 0 ]; then 1281 _list="$_list $child" 1282 fi 1283 if [ -n "${debug_flags}" ]; then 1284 wlandebug -i $child ${debug_flags} 1285 fi 1286 done 1287 done 1288 if [ -n "${_list# }" ]; then 1289 echo "Created wlan(4) interfaces: ${_list# }." 1290 fi 1291 debug "Created wlan(4)s: ${_list# }" 1292} 1293 1294# wlan_down 1295# Destroy IEEE802.11 interfaces. 1296# 1297wlan_down() 1298{ 1299 local _list _iflist parent child_wlans child 1300 _list= 1301 _iflist=$* 1302 1303 # Parse wlans_$parent="$child ..." 1304 for parent in `set | sed -nE 's/wlans_([a-z]+[a-z0-9]+[0-9]+)=.*/\1/p'`; do 1305 child_wlans=`get_if_var $parent wlans_IF` 1306 for child in ${child_wlans}; do 1307 case $_iflist in 1308 ""|$child|$child[[:space:]]*|*[[:space:]]$child[[:space:]]*|*[[:space:]]$child) ;; 1309 *) continue ;; 1310 esac 1311 # Skip if ${child} doesn't exists. 1312 if ! ${IFCONFIG_CMD} $child > /dev/null 2>&1; then 1313 continue 1314 fi 1315 ${IFCONFIG_CMD} -n ${child} destroy 1316 if [ $? -eq 0 ]; then 1317 _list="$_list $child" 1318 fi 1319 done 1320 done 1321 if [ -n "${_list# }" ]; then 1322 echo "Destroyed wlan(4) interfaces: ${_list# }." 1323 fi 1324 debug "Destroyed wlan(4)s: ${_list# }" 1325} 1326 1327# clone_up 1328# Create cloneable interfaces. 1329# 1330clone_up() 1331{ 1332 local _list ifn ifopt _iflist _inet6 _n tmpargs 1333 _list= 1334 _iflist=$* 1335 1336 # create_args_IF 1337 for ifn in ${cloned_interfaces}; do 1338 # Parse ifn:ifopt. 1339 OIFS=$IFS; IFS=:; set -- $ifn; ifn=$1; ifopt=$2; IFS=$OIFS 1340 case $_iflist in 1341 ""|$ifn|$ifn[[:space:]]*|*[[:space:]]$ifn[[:space:]]*|*[[:space:]]$ifn) ;; 1342 *) continue ;; 1343 esac 1344 case $ifn in 1345 epair[0-9]*) 1346 # epair(4) uses epair[0-9] for creation and 1347 # epair[0-9][ab] for configuration. 1348 # 1349 # Skip if ${ifn}a or ${ifn}b already exist. 1350 if ${IFCONFIG_CMD} ${ifn}a > /dev/null 2>&1; then 1351 continue 1352 elif ${IFCONFIG_CMD} ${ifn}b > /dev/null 2>&1; then 1353 continue 1354 fi 1355 ${IFCONFIG_CMD} ${ifn} create \ 1356 `get_if_var ${ifn} create_args_IF` 1357 if [ $? -eq 0 ]; then 1358 _list="$_list ${ifn}a ${ifn}b" 1359 fi 1360 ;; 1361 *) 1362 # Skip if ${ifn} already exists. 1363 if ${IFCONFIG_CMD} $ifn > /dev/null 2>&1; then 1364 continue 1365 fi 1366 ${IFCONFIG_CMD} ${ifn} create \ 1367 `get_if_var ${ifn} create_args_IF` 1368 if [ $? -eq 0 ]; then 1369 _list="$_list $ifn" 1370 fi 1371 esac 1372 done 1373 for ifn in ${gif_interfaces}; do 1374 # Parse ifn:ifopt. 1375 OIFS=$IFS; IFS=:; set -- $ifn; ifn=$1; ifopt=$2; IFS=$OIFS 1376 case $_iflist in 1377 ""|$ifn|$ifn[[:space:]]*|*[[:space:]]$ifn[[:space:]]*|*[[:space:]]$ifn) ;; 1378 *) continue ;; 1379 esac 1380 # Skip if ifn already exists. 1381 if ${IFCONFIG_CMD} $ifn > /dev/null 2>&1; then 1382 continue 1383 fi 1384 case $ifn in 1385 gif[0-9]*) 1386 ${IFCONFIG_CMD} $ifn create 1387 ;; 1388 *) 1389 _n=$(${IFCONFIG_CMD} gif create) 1390 ${IFCONFIG_CMD} $_n name $ifn 1391 ;; 1392 esac 1393 if [ $? -eq 0 ]; then 1394 _list="$_list $ifn" 1395 tmpargs=$(get_if_var $ifn gifconfig_IF) 1396 _inet6='' 1397 case "$tmpargs" in 1398 '') 1399 ;; 1400 inet6[[:space:]]*) 1401 tmpargs=${tmpargs#inet6} 1402 _inet6=inet6 1403 # FALLTHROUGH 1404 ;& 1405 *) 1406 ${IFCONFIG_CMD} $ifn $_inet6 tunnel $tmpargs 1407 ;; 1408 esac 1409 fi 1410 done 1411 if [ -n "${_list# }" ]; then 1412 echo "Created clone interfaces: ${_list# }." 1413 fi 1414 debug "Cloned: ${_list# }" 1415} 1416 1417# clone_down 1418# Destroy cloned interfaces. Destroyed interfaces are echoed to 1419# standard output. 1420# 1421clone_down() 1422{ 1423 local _list ifn _difn ifopt _iflist _sticky 1424 _list= 1425 _iflist=$* 1426 1427 : ${cloned_interfaces_sticky:=NO} 1428 if checkyesno cloned_interfaces_sticky; then 1429 _sticky=1 1430 else 1431 _sticky=0 1432 fi 1433 for ifn in ${cloned_interfaces} ${gif_interfaces}; do 1434 # Parse ifn:ifopt. 1435 OIFS=$IFS; IFS=:; set -- $ifn; ifn=$1; ifopt=$2; IFS=$OIFS 1436 case $ifopt:$_sticky in 1437 sticky:*) continue ;; # :sticky => not destroy 1438 nosticky:*) ;; # :nosticky => destroy 1439 *:1) continue ;; # global sticky knob == 1 1440 esac 1441 case $_iflist in 1442 ""|$ifn|$ifn[[:space:]]*|*[[:space:]]$ifn[[:space:]]*|*[[:space:]]$ifn) ;; 1443 *) continue ;; 1444 esac 1445 case $ifn in 1446 epair[0-9]*) 1447 # Note: epair(4) uses epair[0-9] for removal and 1448 # epair[0-9][ab] for configuration. 1449 # 1450 # Skip if both of ${ifn}a and ${ifn}b do not exist. 1451 if ${IFCONFIG_CMD} ${ifn}a > /dev/null 2>&1; then 1452 _difn=${ifn}a 1453 elif ${IFCONFIG_CMD} ${ifn}b > /dev/null 2>&1; then 1454 _difn=${ifn}b 1455 else 1456 continue 1457 fi 1458 ${IFCONFIG_CMD} -n $_difn destroy 1459 if [ $? -eq 0 ]; then 1460 _list="$_list ${ifn}a ${ifn}b" 1461 fi 1462 ;; 1463 *) 1464 # Skip if ifn does not exist. 1465 if ! ${IFCONFIG_CMD} $ifn > /dev/null 2>&1; then 1466 continue 1467 fi 1468 ${IFCONFIG_CMD} -n ${ifn} destroy 1469 if [ $? -eq 0 ]; then 1470 _list="$_list $ifn" 1471 fi 1472 ;; 1473 esac 1474 done 1475 if [ -n "${_list# }" ]; then 1476 echo "Destroyed clone interfaces: ${_list# }." 1477 fi 1478 debug "Destroyed clones: ${_list# }" 1479} 1480 1481# childif_create 1482# Create and configure child interfaces. Return 0 if child 1483# interfaces are created. 1484# 1485childif_create() 1486{ 1487 local cfg child child_vlans create_args debug_flags ifn i 1488 cfg=1 1489 ifn=$1 1490 1491 # Create vlan interfaces 1492 child_vlans=`get_if_var $ifn vlans_IF` 1493 1494 if [ -n "${child_vlans}" ]; then 1495 load_kld if_vlan 1496 fi 1497 1498 for child in ${child_vlans}; do 1499 if expr $child : '[1-9][0-9]*$' >/dev/null 2>&1; then 1500 child="${ifn}.${child}" 1501 create_args=`get_if_var $child create_args_IF` 1502 ${IFCONFIG_CMD} $child create ${create_args} && cfg=0 1503 else 1504 create_args="vlandev $ifn `get_if_var $child create_args_IF`" 1505 if expr $child : 'vlan[0-9][0-9]*$' >/dev/null 2>&1; then 1506 ${IFCONFIG_CMD} $child create ${create_args} && cfg=0 1507 else 1508 i=`${IFCONFIG_CMD} vlan create ${create_args}` 1509 ${IFCONFIG_CMD} $i name $child && cfg=0 1510 fi 1511 fi 1512 if autoif $child; then 1513 ifn_start $child 1514 fi 1515 done 1516 1517 return ${cfg} 1518} 1519 1520# childif_destroy 1521# Destroy child interfaces. 1522# 1523childif_destroy() 1524{ 1525 local cfg child child_vlans ifn 1526 cfg=1 1527 1528 child_vlans=`get_if_var $ifn vlans_IF` 1529 for child in ${child_vlans}; do 1530 if expr $child : '[1-9][0-9]*$' >/dev/null 2>&1; then 1531 child="${ifn}.${child}" 1532 fi 1533 if ! ifexists $child; then 1534 continue 1535 fi 1536 ${IFCONFIG_CMD} -n $child destroy && cfg=0 1537 done 1538 1539 return ${cfg} 1540} 1541 1542# ng_mkpeer 1543# Create netgraph nodes. 1544# 1545ng_mkpeer() 1546{ 1547 ngctl -f - 2> /dev/null <<EOF 1548mkpeer $* 1549msg dummy nodeinfo 1550EOF 1551} 1552 1553# ng_create_one 1554# Create netgraph nodes. 1555# 1556ng_create_one() 1557{ 1558 local t 1559 1560 ng_mkpeer $* | while read line; do 1561 t=`expr "${line}" : '.* name="\([a-z]*[0-9]*\)" .*'` 1562 if [ -n "${t}" ]; then 1563 echo ${t} 1564 return 1565 fi 1566 done 1567} 1568 1569# ifnet_rename [ifname] 1570# Rename interfaces if ifconfig_IF_name is defined. 1571# 1572ifnet_rename() 1573{ 1574 local _if _ifname 1575 1576 # ifconfig_IF_name 1577 for _if in ${*:-$(${IFCONFIG_CMD} -l)}; do 1578 _ifname=`get_if_var $_if ifconfig_IF_name` 1579 if [ ! -z "$_ifname" ]; then 1580 ${IFCONFIG_CMD} $_if name $_ifname 1581 fi 1582 done 1583 1584 return 0 1585} 1586 1587# list_net_interfaces type 1588# List all network interfaces. The type of interface returned 1589# can be controlled by the type argument. The type 1590# argument can be any of the following: 1591# nodhcp - all interfaces, excluding DHCP configured interfaces 1592# dhcp - list only DHCP configured interfaces 1593# noautoconf - all interfaces, excluding IPv6 Stateless 1594# Address Autoconf configured interfaces 1595# autoconf - list only IPv6 Stateless Address Autoconf 1596# configured interfaces 1597# If no argument is specified all network interfaces are output. 1598# Note that the list will include cloned interfaces if applicable. 1599# Cloned interfaces must already exist to have a chance to appear 1600# in the list if ${network_interfaces} is set to `auto'. 1601# 1602list_net_interfaces() 1603{ 1604 local type _tmplist _list _autolist _lo _if 1605 type=$1 1606 1607 # Get a list of ALL the interfaces and make lo0 first if it's there. 1608 # 1609 _tmplist= 1610 case ${network_interfaces} in 1611 [Aa][Uu][Tt][Oo]) 1612 _autolist="`${IFCONFIG_CMD} -l`" 1613 _lo= 1614 for _if in ${_autolist} ; do 1615 if autoif $_if; then 1616 if [ "$_if" = "lo0" ]; then 1617 _lo="lo0 " 1618 else 1619 _tmplist="${_tmplist} ${_if}" 1620 fi 1621 fi 1622 done 1623 _tmplist="${_lo}${_tmplist# }" 1624 ;; 1625 *) 1626 for _if in ${network_interfaces} ${cloned_interfaces}; do 1627 # epair(4) uses epair[0-9] for creation and 1628 # epair[0-9][ab] for configuration. 1629 case $_if in 1630 epair[0-9]*) 1631 _tmplist="$_tmplist ${_if}a ${_if}b" 1632 ;; 1633 *) 1634 _tmplist="$_tmplist $_if" 1635 ;; 1636 esac 1637 done 1638 # 1639 # lo0 is effectively mandatory, so help prevent foot-shooting 1640 # 1641 case "$_tmplist" in 1642 lo0|'lo0 '*|*' lo0'|*' lo0 '*) 1643 # This is fine, do nothing 1644 _tmplist="${_tmplist# }" 1645 ;; 1646 *) 1647 _tmplist="lo0 ${_tmplist# }" 1648 ;; 1649 esac 1650 ;; 1651 esac 1652 1653 _list= 1654 case "$type" in 1655 nodhcp) 1656 for _if in ${_tmplist} ; do 1657 if ! dhcpif $_if && \ 1658 [ -n "`_ifconfig_getargs $_if`" ]; then 1659 _list="${_list# } ${_if}" 1660 fi 1661 done 1662 ;; 1663 dhcp) 1664 for _if in ${_tmplist} ; do 1665 if dhcpif $_if; then 1666 _list="${_list# } ${_if}" 1667 fi 1668 done 1669 ;; 1670 noautoconf) 1671 for _if in ${_tmplist} ; do 1672 if ! ipv6_autoconfif $_if && \ 1673 [ -n "`_ifconfig_getargs $_if ipv6`" ]; then 1674 _list="${_list# } ${_if}" 1675 fi 1676 done 1677 ;; 1678 autoconf) 1679 for _if in ${_tmplist} ; do 1680 if ipv6_autoconfif $_if; then 1681 _list="${_list# } ${_if}" 1682 fi 1683 done 1684 ;; 1685 *) 1686 _list=${_tmplist} 1687 ;; 1688 esac 1689 1690 echo $_list 1691 1692 return 0 1693} 1694 1695# get_default_if -address_family 1696# Get the interface of the default route for the given address family. 1697# The -address_family argument must be suitable passing to route(8). 1698# 1699get_default_if() 1700{ 1701 local routeget oldifs defif line 1702 defif= 1703 oldifs="$IFS" 1704 IFS=" 1705" 1706 for line in `route -n get $1 default 2>/dev/null`; do 1707 case $line in 1708 *interface:*) 1709 defif=${line##*: } 1710 ;; 1711 esac 1712 done 1713 IFS=${oldifs} 1714 1715 echo $defif 1716} 1717 1718# hexdigit arg 1719# Echo decimal number $arg (single digit) in hexadecimal format. 1720hexdigit() 1721{ 1722 printf '%x\n' "$1" 1723} 1724 1725# hexprint arg 1726# Echo decimal number $arg (multiple digits) in hexadecimal format. 1727hexprint() 1728{ 1729 printf '%x\n' "$1" 1730} 1731 1732is_wired_interface() 1733{ 1734 local media 1735 1736 case `${IFCONFIG_CMD} $1 2>/dev/null` in 1737 *media:?Ethernet*) media=Ethernet ;; 1738 esac 1739 1740 test "$media" = "Ethernet" 1741} 1742 1743# network6_getladdr if [flag] 1744# Echo link-local address from $if if any. 1745# If flag is defined, tentative ones will be excluded. 1746network6_getladdr() 1747{ 1748 local _if _flag proto addr rest 1749 _if=$1 1750 _flag=$2 1751 1752 ${IFCONFIG_CMD} $_if inet6 2>/dev/null | while read proto addr rest; do 1753 case "${proto}/${addr}/${_flag}/${rest}" in 1754 inet6/fe80::*//*) 1755 echo ${addr} 1756 ;; 1757 inet6/fe80:://*tentative*) # w/o flag 1758 sleep `${SYSCTL_N} net.inet6.ip6.dad_count` 1759 network6_getladdr $_if $_flags 1760 ;; 1761 inet6/fe80::/*/*tentative*) # w/ flag 1762 echo ${addr} 1763 ;; 1764 *) 1765 continue 1766 ;; 1767 esac 1768 1769 return 1770 done 1771} 1772