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# 26IFCONFIG_CMD="/sbin/ifconfig" 27: ${netif_ipexpand_max:=2048} 28 29# 30# Subroutines commonly used from network startup scripts. 31# Requires that rc.conf be loaded first. 32# 33 34# ifn_start ifn 35# Bring up and configure an interface. If some configuration is 36# applied, print the interface configuration. 37# 38ifn_start() 39{ 40 local ifn cfg 41 ifn="$1" 42 cfg=1 43 44 [ -z "$ifn" ] && err 1 "ifn_start called without an interface" 45 46 ifscript_up ${ifn} && cfg=0 47 ifconfig_up ${ifn} && cfg=0 48 if ! noafif $ifn; then 49 afexists inet6 && ipv6_up ${ifn} && cfg=0 50 afexists inet && ipv4_up ${ifn} && cfg=0 51 fi 52 childif_create ${ifn} && cfg=0 53 54 return $cfg 55} 56 57# ifn_stop ifn 58# Shutdown and de-configure an interface. If action is taken, 59# print the interface name. 60# 61ifn_stop() 62{ 63 local ifn cfg 64 ifn="$1" 65 cfg=1 66 67 [ -z "$ifn" ] && err 1 "ifn_stop called without an interface" 68 69 if ! noafif $ifn; then 70 afexists inet && ipv4_down ${ifn} && cfg=0 71 afexists inet6 && ipv6_down ${ifn} && cfg=0 72 fi 73 ifconfig_down ${ifn} && cfg=0 74 ifscript_down ${ifn} && cfg=0 75 childif_destroy ${ifn} && cfg=0 76 77 return $cfg 78} 79 80# ifn_vnetup ifn 81# Move ifn to the specified vnet jail. 82# 83ifn_vnetup() 84{ 85 86 ifn_vnet0 $1 vnet 87} 88 89# ifn_vnetdown ifn 90# Reclaim ifn from the specified vnet jail. 91# 92ifn_vnetdown() 93{ 94 95 ifn_vnet0 $1 -vnet 96} 97 98# ifn_vnet0 ifn action 99# Helper function for ifn_vnetup and ifn_vnetdown. 100# 101ifn_vnet0() 102{ 103 local _ifn _cfg _action _vnet 104 _ifn="$1" 105 _action="$2" 106 _cfg=1 107 108 if _vnet=$(vnetif $_ifn); then 109 ${IFCONFIG_CMD} $_ifn $_action $_vnet && _cfg=0 110 fi 111 112 return $_cfg 113} 114 115# ifconfig_up if 116# Evaluate ifconfig(8) arguments for interface $if and 117# run ifconfig(8) with those arguments. It returns 0 if 118# arguments were found and executed or 1 if the interface 119# had no arguments. Pseudo arguments DHCP and WPA are handled 120# here. 121# 122ifconfig_up() 123{ 124 local _cfg _ifconfig_descr _ipv6_opts ifconfig_args 125 _cfg=1 126 127 # Make sure lo0 always comes up. 128 if [ "$1" = "lo0" ]; then 129 _cfg=0 130 fi 131 132 # inet6 specific 133 if ! noafif $1 && afexists inet6; then 134 if checkyesno ipv6_activate_all_interfaces; then 135 _ipv6_opts="-ifdisabled" 136 fi 137 138 # backward compatibility: $ipv6_enable 139 case $ipv6_enable in 140 [Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1) 141 case $1 in 142 bridge[0-9]*) 143 # No accept_rtadv by default on if_bridge(4) 144 # to avoid a conflict with the member 145 # interfaces. 146 ;; 147 *) 148 if ! checkyesno ipv6_gateway_enable; then 149 _ipv6_opts="${_ipv6_opts} accept_rtadv" 150 fi 151 ;; 152 esac 153 ;; 154 esac 155 156 case $ipv6_cpe_wanif in 157 $1) 158 _ipv6_opts="${_ipv6_opts} -no_radr accept_rtadv" 159 ;; 160 esac 161 162 if [ -n "${_ipv6_opts}" ]; then 163 ${IFCONFIG_CMD} $1 inet6 ${_ipv6_opts} 164 fi 165 fi 166 167 # ifconfig_IF 168 ifconfig_args=`ifconfig_getargs $1` 169 if [ -n "${ifconfig_args}" ]; then 170 eval ${IFCONFIG_CMD} $1 ${ifconfig_args} 171 _cfg=0 172 fi 173 174 # inet6 specific 175 if ! noafif $1 && afexists inet6; then 176 # ifconfig_IF_ipv6 177 ifconfig_args=`ifconfig_getargs $1 ipv6` 178 if [ -n "${ifconfig_args}" ]; then 179 # backward compatibility: inet6 keyword 180 case "${ifconfig_args}" in 181 :*|[0-9a-fA-F]*:*) 182 warn "\$ifconfig_$1_ipv6 needs leading" \ 183 "\"inet6\" keyword for an IPv6 address." 184 ifconfig_args="inet6 ${ifconfig_args}" 185 ;; 186 esac 187 ${IFCONFIG_CMD} $1 inet6 -ifdisabled 188 eval ${IFCONFIG_CMD} $1 ${ifconfig_args} 189 _cfg=0 190 fi 191 192 # $ipv6_prefix_IF will be handled in 193 # ipv6_prefix_hostid_addr_common(). 194 ifconfig_args=`get_if_var $1 ipv6_prefix_IF` 195 if [ -n "${ifconfig_args}" ]; then 196 ${IFCONFIG_CMD} $1 inet6 -ifdisabled 197 _cfg=0 198 fi 199 200 # backward compatibility: $ipv6_ifconfig_IF 201 ifconfig_args=`get_if_var $1 ipv6_ifconfig_IF` 202 if [ -n "${ifconfig_args}" ]; then 203 warn "\$ipv6_ifconfig_$1 is obsolete." \ 204 " Use ifconfig_$1_ipv6 instead." 205 ${IFCONFIG_CMD} $1 inet6 -ifdisabled 206 eval ${IFCONFIG_CMD} $1 inet6 ${ifconfig_args} 207 _cfg=0 208 fi 209 fi 210 211 ifalias $1 link alias 212 ifalias $1 ether alias 213 214 _ifconfig_descr=`get_if_var $1 ifconfig_IF_descr` 215 if [ -n "${_ifconfig_descr}" ]; then 216 ${IFCONFIG_CMD} $1 description "${_ifconfig_descr}" 217 fi 218 219 if wpaif $1; then 220 /etc/rc.d/wpa_supplicant start $1 221 _cfg=0 # XXX: not sure this should count 222 elif hostapif $1; then 223 /etc/rc.d/hostapd start $1 224 _cfg=0 225 elif [ ${_cfg} -eq 0 ]; then 226 ${IFCONFIG_CMD} $1 up 227 fi 228 229 if ! noafif $1 && afexists inet6; then 230 ipv6_accept_rtadv_up $1 && _cfg=0 231 fi 232 233 if dhcpif $1; then 234 if [ $_cfg -ne 0 ] ; then 235 ${IFCONFIG_CMD} $1 up 236 fi 237 if syncdhcpif $1; then 238 /etc/rc.d/dhclient start $1 239 fi 240 _cfg=0 241 fi 242 243 return $_cfg 244} 245 246# ifconfig_down if 247# returns 1 if wpa_supplicant or dhclient was stopped or 248# the interface exists. 249# 250ifconfig_down() 251{ 252 local _cfg 253 _cfg=1 254 255 if wpaif $1; then 256 /etc/rc.d/wpa_supplicant stop $1 257 _cfg=0 258 elif hostapif $1; then 259 /etc/rc.d/hostapd stop $1 260 _cfg=0 261 elif dhcpif $1; then 262 /etc/rc.d/dhclient stop $1 263 _cfg=0 264 fi 265 266 if ifexists $1; then 267 ${IFCONFIG_CMD} $1 down 268 _cfg=0 269 fi 270 271 return $_cfg 272} 273 274# get_if_var if var [default] 275# Return the value of the pseudo-hash corresponding to $if where 276# $var is a string containg the sub-string "IF" which will be 277# replaced with $if after the characters defined in _punct are 278# replaced with '_'. If the variable is unset, replace it with 279# $default if given. 280get_if_var() 281{ 282 local _if _punct _punct_c _var _default prefix suffix 283 284 if [ $# -ne 2 -a $# -ne 3 ]; then 285 err 3 'USAGE: get_if_var name var [default]' 286 fi 287 288 _if=$1 289 _punct=".-/+" 290 ltr ${_if} "${_punct}" '_' _if 291 _var=$2 292 _default=$3 293 294 prefix=${_var%%IF*} 295 suffix=${_var##*IF} 296 eval echo \${${prefix}${_if}${suffix}-${_default}} 297} 298 299# _ifconfig_getargs if [af] 300# Prints the arguments for the supplied interface to stdout. 301# Returns 1 if empty. In general, ifconfig_getargs should be used 302# outside this file. 303_ifconfig_getargs() 304{ 305 local _ifn _af 306 _ifn=$1 307 _af=${2+_$2} 308 309 if [ -z "$_ifn" ]; then 310 return 1 311 fi 312 313 get_if_var $_ifn ifconfig_IF$_af "$ifconfig_DEFAULT" 314} 315 316# ifconfig_getargs if [af] 317# Takes the result from _ifconfig_getargs and removes pseudo 318# args such as DHCP and WPA. 319ifconfig_getargs() 320{ 321 local _tmpargs _arg _args _vnet 322 _tmpargs=`_ifconfig_getargs $1 $2` 323 if [ $? -eq 1 ]; then 324 return 1 325 fi 326 _args= 327 _vnet=0 328 329 for _arg in $_tmpargs; do 330 case $_arg:$_vnet in 331 [Dd][Hh][Cc][Pp]:0) ;; 332 [Nn][Oo][Aa][Uu][Tt][Oo]:0) ;; 333 [Nn][Oo][Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp]:0) ;; 334 [Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp]:0) ;; 335 [Ww][Pp][Aa]:0) ;; 336 [Hh][Oo][Ss][Tt][Aa][Pp]:0) ;; 337 vnet:0) _vnet=1 ;; 338 *:1) _vnet=0 ;; 339 *:0) 340 _args="$_args $_arg" 341 ;; 342 esac 343 done 344 345 echo $_args 346} 347 348# autoif 349# Returns 0 if the interface should be automatically configured at 350# boot time and 1 otherwise. 351autoif() 352{ 353 local _tmpargs _arg 354 _tmpargs=`_ifconfig_getargs $1` 355 356 for _arg in $_tmpargs; do 357 case $_arg in 358 [Nn][Oo][Aa][Uu][Tt][Oo]) 359 return 1 360 ;; 361 esac 362 done 363 364 return 0 365} 366 367# dhcpif if 368# Returns 0 if the interface is a DHCP interface and 1 otherwise. 369dhcpif() 370{ 371 local _tmpargs _arg 372 _tmpargs=`_ifconfig_getargs $1` 373 374 case $1 in 375 lo[0-9]*|\ 376 stf[0-9]*|\ 377 lp[0-9]*|\ 378 sl[0-9]*) 379 return 1 380 ;; 381 esac 382 if noafif $1; then 383 return 1 384 fi 385 386 for _arg in $_tmpargs; do 387 case $_arg in 388 [Dd][Hh][Cc][Pp]) 389 return 0 390 ;; 391 [Nn][Oo][Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp]) 392 return 0 393 ;; 394 [Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp]) 395 return 0 396 ;; 397 esac 398 done 399 400 return 1 401} 402 403# syncdhcpif 404# Returns 0 if the interface should be configured synchronously and 405# 1 otherwise. 406syncdhcpif() 407{ 408 local _tmpargs _arg 409 _tmpargs=`_ifconfig_getargs $1` 410 411 if noafif $1; then 412 return 1 413 fi 414 415 for _arg in $_tmpargs; do 416 case $_arg in 417 [Nn][Oo][Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp]) 418 return 1 419 ;; 420 [Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp]) 421 return 0 422 ;; 423 esac 424 done 425 426 checkyesno synchronous_dhclient 427} 428 429# wpaif if 430# Returns 0 if the interface is a WPA interface and 1 otherwise. 431wpaif() 432{ 433 local _tmpargs _arg 434 _tmpargs=`_ifconfig_getargs $1` 435 436 for _arg in $_tmpargs; do 437 case $_arg in 438 [Ww][Pp][Aa]) 439 return 0 440 ;; 441 esac 442 done 443 444 return 1 445} 446 447# hostapif if 448# Returns 0 if the interface is a HOSTAP interface and 1 otherwise. 449hostapif() 450{ 451 local _tmpargs _arg 452 _tmpargs=`_ifconfig_getargs $1` 453 454 for _arg in $_tmpargs; do 455 case $_arg in 456 [Hh][Oo][Ss][Tt][Aa][Pp]) 457 return 0 458 ;; 459 esac 460 done 461 462 return 1 463} 464 465# vnetif if 466# Returns 0 and echo jail if "vnet" keyword is specified on the 467# interface, and 1 otherwise. 468vnetif() 469{ 470 local _tmpargs _arg _vnet 471 _tmpargs=`_ifconfig_getargs $1` 472 473 _vnet=0 474 for _arg in $_tmpargs; do 475 case $_arg:$_vnet in 476 vnet:0) _vnet=1 ;; 477 *:1) echo $_arg; return 0 ;; 478 esac 479 done 480 481 return 1 482} 483 484# afexists af 485# Returns 0 if the address family is enabled in the kernel 486# 1 otherwise. 487afexists() 488{ 489 local _af 490 _af=$1 491 492 case ${_af} in 493 inet|inet6) 494 check_kern_features ${_af} 495 ;; 496 link|ether) 497 return 0 498 ;; 499 *) 500 err 1 "afexists(): Unsupported address family: $_af" 501 ;; 502 esac 503} 504 505# noafif if 506# Returns 0 if the interface has no af configuration and 1 otherwise. 507noafif() 508{ 509 local _if 510 _if=$1 511 512 case $_if in 513 pflog[0-9]*|\ 514 pfsync[0-9]*|\ 515 usbus[0-9]*|\ 516 an[0-9]*|\ 517 ath[0-9]*|\ 518 ipw[0-9]*|\ 519 ipfw[0-9]*|\ 520 iwi[0-9]*|\ 521 iwn[0-9]*|\ 522 ral[0-9]*|\ 523 wi[0-9]*|\ 524 wl[0-9]*|\ 525 wpi[0-9]*) 526 return 0 527 ;; 528 esac 529 530 return 1 531} 532 533# ipv6if if 534# Returns 0 if the interface should be configured for IPv6 and 535# 1 otherwise. 536ipv6if() 537{ 538 local _if _tmpargs i 539 _if=$1 540 541 if ! afexists inet6; then 542 return 1 543 fi 544 545 # lo0 is always IPv6-enabled 546 case $_if in 547 lo0) 548 return 0 549 ;; 550 esac 551 552 case "${ipv6_network_interfaces}" in 553 $_if|"$_if "*|*" $_if"|*" $_if "*|[Aa][Uu][Tt][Oo]) 554 # True if $ifconfig_IF_ipv6 is defined. 555 _tmpargs=`_ifconfig_getargs $_if ipv6` 556 if [ -n "${_tmpargs}" ]; then 557 return 0 558 fi 559 560 # True if $ipv6_prefix_IF is defined. 561 _tmpargs=`get_if_var $_if ipv6_prefix_IF` 562 if [ -n "${_tmpargs}" ]; then 563 return 0 564 fi 565 566 # backward compatibility: True if $ipv6_ifconfig_IF is defined. 567 _tmpargs=`get_if_var $_if ipv6_ifconfig_IF` 568 if [ -n "${_tmpargs}" ]; then 569 return 0 570 fi 571 ;; 572 esac 573 574 return 1 575} 576 577# ipv6_autoconfif if 578# Returns 0 if the interface should be configured for IPv6 with 579# Stateless Address Configuration; 1 otherwise. 580ipv6_autoconfif() 581{ 582 local _if _tmpargs _arg 583 _if=$1 584 585 case $_if in 586 lo[0-9]*|\ 587 stf[0-9]*|\ 588 lp[0-9]*|\ 589 sl[0-9]*) 590 return 1 591 ;; 592 esac 593 if noafif $_if; then 594 return 1 595 fi 596 if ! ipv6if $_if; then 597 return 1 598 fi 599 if checkyesno ipv6_gateway_enable; then 600 return 1 601 fi 602 _tmpargs=`get_if_var $_if ipv6_prefix_IF` 603 if [ -n "${_tmpargs}" ]; then 604 return 1 605 fi 606 # backward compatibility: $ipv6_enable 607 case $ipv6_enable in 608 [Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1) 609 if checkyesno ipv6_gateway_enable; then 610 return 1 611 fi 612 case $1 in 613 bridge[0-9]*) 614 # No accept_rtadv by default on if_bridge(4) 615 # to avoid a conflict with the member 616 # interfaces. 617 return 1 618 ;; 619 *) 620 return 0 621 ;; 622 esac 623 ;; 624 esac 625 626 _tmpargs=`_ifconfig_getargs $_if ipv6` 627 for _arg in $_tmpargs; do 628 case $_arg in 629 accept_rtadv) 630 return 0 631 ;; 632 esac 633 done 634 635 # backward compatibility: $ipv6_ifconfig_IF 636 _tmpargs=`get_if_var $_if ipv6_ifconfig_IF` 637 for _arg in $_tmpargs; do 638 case $_arg in 639 accept_rtadv) 640 return 0 641 ;; 642 esac 643 done 644 645 return 1 646} 647 648# ifexists if 649# Returns 0 if the interface exists and 1 otherwise. 650ifexists() 651{ 652 [ -z "$1" ] && return 1 653 ${IFCONFIG_CMD} -n $1 > /dev/null 2>&1 654} 655 656# ifisup if 657# Returns 0 if the interface exists and UP, 658# returns 1 if the interface exists and not UP, 659# returns 2 otherwise. 660ifisup() 661{ 662 local _if 663 664 [ -z "$1" ] && return 2 665 _if="$1" 666 667 set -- $(${IFCONFIG_CMD} -n ${_if} 2>/dev/null) 668 case "$1$2" in 669 ${_if}:*'<UP'[,\>]*) return 0 ;; 670 ${_if}:*) return 1 ;; 671 esac 672 673 return 2 674} 675 676# ipv4_up if 677# add IPv4 addresses to the interface $if 678ipv4_up() 679{ 680 local _if _ret 681 _if=$1 682 _ret=1 683 684 # Add 127.0.0.1/8 to lo0 unless otherwise specified. 685 if [ "${_if}" = "lo0" ]; then 686 ifconfig_args=`get_if_var ${_if} ifconfig_IF` 687 if [ -z "${ifconfig_args}" ]; then 688 ${IFCONFIG_CMD} ${_if} inet 127.0.0.1/8 alias 689 fi 690 fi 691 ifalias ${_if} inet alias && _ret=0 692 693 return $_ret 694} 695 696# ipv6_up if 697# add IPv6 addresses to the interface $if 698ipv6_up() 699{ 700 local _if _ret 701 _if=$1 702 _ret=1 703 704 if ! ipv6if $_if; then 705 return 0 706 fi 707 708 ifalias ${_if} inet6 alias && _ret=0 709 ipv6_prefix_hostid_addr_common ${_if} alias && _ret=0 710 711 return $_ret 712} 713 714# ipv4_down if 715# remove IPv4 addresses from the interface $if 716ipv4_down() 717{ 718 local _if _ifs _ret inetList oldifs _inet 719 _if=$1 720 _ifs="^" 721 _ret=1 722 723 ifalias ${_if} inet -alias && _ret=0 724 725 inetList="`${IFCONFIG_CMD} ${_if} | grep 'inet ' | tr "\n\t" "$_ifs"`" 726 727 oldifs="$IFS" 728 IFS="$_ifs" 729 for _inet in $inetList ; do 730 # get rid of extraneous line 731 case $_inet in 732 inet[[:space:]]*) ;; 733 *) continue ;; 734 esac 735 736 _inet=`expr "$_inet" : '.*\(inet \([0-9]\{1,3\}\.\)\{3\}[0-9]\{1,3\}\).*'` 737 738 IFS="$oldifs" 739 ${IFCONFIG_CMD} ${_if} ${_inet} delete 740 IFS="$_ifs" 741 _ret=0 742 done 743 IFS="$oldifs" 744 745 return $_ret 746} 747 748# ipv6_down if 749# remove IPv6 addresses from the interface $if 750ipv6_down() 751{ 752 local _if _ifs _ret inetList oldifs _inet6 753 _if=$1 754 _ifs="^" 755 _ret=1 756 757 if ! ipv6if $_if; then 758 return 0 759 fi 760 761 ipv6_accept_rtadv_down ${_if} && _ret=0 762 ipv6_prefix_hostid_addr_common ${_if} -alias && _ret=0 763 ifalias ${_if} inet6 -alias && _ret=0 764 765 inetList="`${IFCONFIG_CMD} ${_if} | grep 'inet6 ' | tr "\n\t" "$_ifs"`" 766 767 oldifs="$IFS" 768 IFS="$_ifs" 769 for _inet6 in $inetList ; do 770 # get rid of extraneous line 771 case $_inet6 in 772 inet6[[:space:]]*) ;; 773 *) continue ;; 774 esac 775 776 _inet6=`expr "$_inet6" : '.*\(inet6 \([0-9a-f:]*\)\).*'` 777 778 IFS="$oldifs" 779 ${IFCONFIG_CMD} ${_if} ${_inet6} -alias 780 IFS="$_ifs" 781 _ret=0 782 done 783 IFS="$oldifs" 784 785 return $_ret 786} 787 788# ifalias if af action 789# Configure or remove aliases for network interface $if. 790# It returns 0 if at least one alias was configured or 791# removed, or 1 if there were none. 792# 793ifalias() 794{ 795 local _ret 796 _ret=1 797 798 afexists $2 || return $_ret 799 800 case "$2" in 801 inet|inet6|link|ether) 802 ifalias_af_common $1 $2 $3 && _ret=0 803 ;; 804 esac 805 806 return $_ret 807} 808 809# ifalias_expand_addr af action addr 810# Expand address range ("N-M") specification in addr. 811# "addr" must not include an address-family keyword. 812# The results will include an address-family keyword. 813# 814ifalias_expand_addr() 815{ 816 local _af _action 817 818 _af=$1 819 _action=$2 820 shift 2 821 822 afexists $_af || return 823 ifalias_expand_addr_$_af $_action $* 824} 825 826# ifalias_expand_addr_inet action addr 827# Helper function for ifalias_expand_addr(). Handles IPv4. 828# 829ifalias_expand_addr_inet() 830{ 831 local _action _arg _cidr _cidr_addr _exargs 832 local _ipaddr _plen _range _iphead _iptail _iplow _iphigh _ipcount 833 local _retstr _c 834 _action=$1 835 _arg=$2 836 shift 2 837 _exargs=$* 838 _retstr= 839 840 case $_action:$_arg:$_exargs in 841 *:*--*) return ;; # invalid 842 tmp:*[0-9]-[0-9]*:*) # to be expanded 843 _action="alias" 844 ;; 845 *:*[0-9]-[0-9]*:*) # to be expanded 846 ;; 847 tmp:*:*netmask*) # already expanded w/ netmask option 848 echo ${_arg%/[0-9]*} $_exargs && return 849 ;; 850 tmp:*:*) # already expanded w/o netmask option 851 echo $_arg $_exargs && return 852 ;; 853 *:*:*netmask*) # already expanded w/ netmask option 854 echo inet ${_arg%/[0-9]*} $_exargs && return 855 ;; 856 *:*:*) # already expanded w/o netmask option 857 echo inet $_arg $_exargs && return 858 ;; 859 esac 860 861 for _cidr in $_arg; do 862 _ipaddr=${_cidr%%/*} 863 _plen=${_cidr##*/} 864 # When subnet prefix length is not specified, use /32. 865 case $_plen in 866 $_ipaddr) _plen=32 ;; # "/" character not found 867 esac 868 869 OIFS=$IFS 870 IFS=. set -- $_ipaddr 871 _range= 872 _iphead= 873 _iptail= 874 for _c in $@; do 875 case $_range:$_c in 876 :[0-9]*-[0-9]*) 877 _range=$_c 878 ;; 879 :*) 880 _iphead="${_iphead}${_iphead:+.}${_c}" 881 ;; 882 *:*) 883 _iptail="${_iptail}${_iptail:+.}${_c}" 884 ;; 885 esac 886 done 887 IFS=$OIFS 888 _iplow=${_range%-*} 889 _iphigh=${_range#*-} 890 891 # clear netmask when removing aliases 892 if [ "$_action" = "-alias" ]; then 893 _plen="" 894 fi 895 896 _ipcount=$_iplow 897 while [ "$_ipcount" -le "$_iphigh" ]; do 898 _retstr="${_retstr} ${_iphead}${_iphead:+.}${_ipcount}${_iptail:+.}${_iptail}${_plen:+/}${_plen}" 899 if [ $_ipcount -gt $(($_iplow + $netif_ipexpand_max)) ]; then 900 warn "Range specification is too large (${_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." 901 break 902 else 903 _ipcount=$(($_ipcount + 1)) 904 fi 905 # Forcibly set /32 for remaining aliases. 906 _plen=32 907 done 908 done 909 910 for _c in $_retstr; do 911 ifalias_expand_addr_inet $_action $_c $_exargs 912 done 913} 914 915# ifalias_expand_addr_inet6 action addr 916# Helper function for ifalias_expand_addr(). Handles IPv6. 917# 918ifalias_expand_addr_inet6() 919{ 920 local _action _arg _cidr _cidr_addr _exargs 921 local _ipaddr _plen _ipleft _ipright _iplow _iphigh _ipcount 922 local _ipv4part 923 local _retstr _c 924 _action=$1 925 _arg=$2 926 shift 2 927 _exargs=$* 928 _retstr= 929 930 case $_action:$_arg:$_exargs in 931 *:*--*:*) return ;; # invalid 932 tmp:*[0-9a-zA-Z]-[0-9a-zA-Z]*:*)# to be expanded 933 _action="alias" 934 ;; 935 *:*[0-9a-zA-Z]-[0-9a-zA-Z]*:*) # to be expanded 936 ;; 937 tmp:*:*prefixlen*) # already expanded w/ prefixlen option 938 echo ${_arg%/[0-9]*} $_exargs && return 939 ;; 940 tmp:*:*) # already expanded w/o prefixlen option 941 echo $_arg $_exargs && return 942 ;; 943 *:*:*prefixlen*) # already expanded w/ prefixlen option 944 echo inet6 ${_arg%/[0-9]*} $_exargs && return 945 ;; 946 *:*:*) # already expanded w/o prefixlen option 947 echo inet6 $_arg $_exargs && return 948 ;; 949 esac 950 951 for _cidr in $_arg; do 952 _ipaddr="${_cidr%%/*}" 953 _plen="${_cidr##*/}" 954 955 case $_action:$_ipaddr:$_cidr in 956 -alias:*:*) unset _plen ;; 957 *:$_cidr:$_ipaddr) unset _plen ;; 958 esac 959 960 if [ "${_ipaddr%:*.*.*.*}" = "$_ipaddr" ]; then 961 # Handle !v4mapped && !v4compat addresses. 962 963 # The default prefix length is 64. 964 case $_ipaddr:$_cidr in 965 $_cidr:$_ipaddr) _plen="64" ;; 966 esac 967 _ipleft=${_ipaddr%-*} 968 _ipright=${_ipaddr#*-} 969 _iplow=${_ipleft##*:} 970 _iphigh=${_ipright%%:*} 971 _ipleft=${_ipleft%:*} 972 _ipright=${_ipright#*:} 973 974 if [ "$_iphigh" = "$_ipright" ]; then 975 unset _ipright 976 else 977 _ipright=:$_ipright 978 fi 979 980 if [ -n "$_iplow" -a -n "$_iphigh" ]; then 981 _iplow=$((0x$_iplow)) 982 _iphigh=$((0x$_iphigh)) 983 _ipcount=$_iplow 984 while [ $_ipcount -le $_iphigh ]; do 985 _r=`printf "%s:%04x%s%s" \ 986 $_ipleft $_ipcount $_ipright \ 987 ${_plen:+/}$_plen` 988 _retstr="$_retstr $_r" 989 if [ $_ipcount -gt $(($_iplow + $netif_ipexpand_max)) ] 990 then 991 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" "$_ipright") was processed. Increase \$netif_ipexpand_max in rc.conf." 992 break 993 else 994 _ipcount=$(($_ipcount + 1)) 995 fi 996 done 997 else 998 _retstr="${_ipaddr}${_plen:+/}${_plen}" 999 fi 1000 1001 for _c in $_retstr; do 1002 ifalias_expand_addr_inet6 $_action $_c $_exargs 1003 done 1004 else 1005 # v4mapped/v4compat should handle as an IPv4 alias 1006 _ipv4part=${_ipaddr##*:} 1007 1008 # Adjust prefix length if any. If not, set the 1009 # default prefix length as 32. 1010 case $_ipaddr:$_cidr in 1011 $_cidr:$_ipaddr) _plen=32 ;; 1012 *) _plen=$(($_plen - 96)) ;; 1013 esac 1014 1015 _retstr=`ifalias_expand_addr_inet \ 1016 tmp ${_ipv4part}${_plen:+/}${_plen}` 1017 for _c in $_retstr; do 1018 ifalias_expand_addr_inet $_action $_c $_exargs 1019 done 1020 fi 1021 done 1022} 1023 1024# ifalias_af_common_handler if af action args 1025# Helper function for ifalias_af_common(). 1026# 1027ifalias_af_common_handler() 1028{ 1029 local _ret _if _af _action _args _c _tmpargs 1030 1031 _ret=1 1032 _if=$1 1033 _af=$2 1034 _action=$3 1035 shift 3 1036 _args=$* 1037 1038 case $_args in 1039 ${_af}[[:space:]]*) ;; 1040 *) return ;; 1041 esac 1042 1043 # link(ether) does not support address removal. 1044 case $_af:$_action in 1045 link:-alias|ether:-alias) return ;; 1046 esac 1047 1048 _tmpargs= 1049 for _c in $_args; do 1050 case $_c in 1051 ${_af}) 1052 case $_tmpargs in 1053 ${_af}[[:space:]]*[0-9a-fA-F]-*) 1054 ifalias_af_common_handler $_if $_af $_action \ 1055 `ifalias_expand_addr $_af $_action ${_tmpargs#${_af}[[:space:]]}` 1056 ;; 1057 ${_af}[[:space:]]*) 1058 ${IFCONFIG_CMD} $_if $_tmpargs $_action && _ret=0 1059 ;; 1060 esac 1061 _tmpargs=$_af 1062 ;; 1063 *) 1064 _tmpargs="$_tmpargs $_c" 1065 ;; 1066 esac 1067 done 1068 # Process the last component if any. 1069 if [ -n "${_tmpargs}" ]; then 1070 case $_tmpargs in 1071 ${_af}[[:space:]]pass[[:space:]]*) 1072 ${IFCONFIG_CMD} $_if $_tmpargs $_action && _ret=0 1073 ;; 1074 ${_af}[[:space:]]*[0-9a-fA-F]-*) 1075 ifalias_af_common_handler $_if $_af $_action \ 1076 `ifalias_expand_addr $_af $_action ${_tmpargs#${_af}[[:space:]]}` 1077 ;; 1078 ${_af}[[:space:]]*) 1079 ${IFCONFIG_CMD} $_if $_tmpargs $_action && _ret=0 1080 ;; 1081 esac 1082 fi 1083 1084 return $_ret 1085} 1086 1087# ifalias_af_common if af action 1088# Helper function for ifalias(). 1089# 1090ifalias_af_common() 1091{ 1092 local _ret _if _af _action alias ifconfig_args _aliasn _c _tmpargs _iaf 1093 local _vif _punct=".-/+" 1094 1095 _ret=1 1096 _aliasn= 1097 _if=$1 1098 _af=$2 1099 _action=$3 1100 1101 # Normalize $_if before using it in a pattern to list_vars() 1102 ltr "$_if" "$_punct" "_" _vif 1103 1104 # ifconfig_IF_aliasN which starts with $_af 1105 for alias in `list_vars ifconfig_${_vif}_alias[0-9]\* | 1106 sort_lite -nk1.$((9+${#_vif}+7))` 1107 do 1108 eval ifconfig_args=\"\$$alias\" 1109 _iaf= 1110 case $ifconfig_args in 1111 inet[[:space:]]*) _iaf=inet ;; 1112 inet6[[:space:]]*) _iaf=inet6 ;; 1113 link[[:space:]]*) _iaf=link ;; 1114 ether[[:space:]]*) _iaf=ether ;; 1115 esac 1116 1117 case ${_af}:${_action}:${_iaf}:"${ifconfig_args}" in 1118 ${_af}:*:${_af}:*) 1119 _aliasn="$_aliasn $ifconfig_args" 1120 ;; 1121 ${_af}:*:"":"") 1122 break 1123 ;; 1124 inet:alias:"":*) 1125 _aliasn="$_aliasn inet $ifconfig_args" 1126 warn "\$${alias} needs leading" \ 1127 "\"inet\" keyword for an IPv4 address." 1128 esac 1129 done 1130 1131 # backward compatibility: ipv6_ifconfig_IF_aliasN. 1132 case $_af in 1133 inet6) 1134 for alias in `list_vars ipv6_ifconfig_${_vif}_alias[0-9]\* | 1135 sort_lite -nk1.$((14+${#_vif}+7))` 1136 do 1137 eval ifconfig_args=\"\$$alias\" 1138 case ${_action}:"${ifconfig_args}" in 1139 *:"") 1140 break 1141 ;; 1142 alias:*) 1143 _aliasn="${_aliasn} inet6 ${ifconfig_args}" 1144 warn "\$${alias} is obsolete. " \ 1145 "Use ifconfig_${_vif}_aliasN instead." 1146 ;; 1147 esac 1148 done 1149 esac 1150 1151 # backward compatibility: ipv4_addrs_IF. 1152 for _tmpargs in `get_if_var $_if ipv4_addrs_IF`; do 1153 _aliasn="$_aliasn inet $_tmpargs" 1154 done 1155 1156 # Handle ifconfig_IF_aliases, ifconfig_IF_aliasN, and the others. 1157 _tmpargs= 1158 for _c in `get_if_var $_if ifconfig_IF_aliases` $_aliasn; do 1159 case $_c in 1160 inet|inet6|link|ether) 1161 case $_tmpargs in 1162 ${_af}[[:space:]]*) 1163 eval ifalias_af_common_handler $_if $_af $_action $_tmpargs && _ret=0 1164 ;; 1165 esac 1166 _tmpargs=$_c 1167 ;; 1168 *) 1169 _tmpargs="$_tmpargs $_c" 1170 esac 1171 done 1172 # Process the last component 1173 case $_tmpargs in 1174 ${_af}[[:space:]]*) 1175 ifalias_af_common_handler $_if $_af $_action $_tmpargs && _ret=0 1176 ;; 1177 esac 1178 1179 return $_ret 1180} 1181 1182# ipv6_prefix_hostid_addr_common if action 1183# Add or remove IPv6 prefix + hostid addr on the interface $if 1184# 1185ipv6_prefix_hostid_addr_common() 1186{ 1187 local _if _action prefix j 1188 _if=$1 1189 _action=$2 1190 prefix=`get_if_var ${_if} ipv6_prefix_IF` 1191 1192 if [ -n "${prefix}" ]; then 1193 for j in ${prefix}; do 1194 # The default prefixlen is 64. 1195 plen=${j#*/} 1196 case $j:$plen in 1197 $plen:$j) plen=64 ;; 1198 *) j=${j%/*} ;; 1199 esac 1200 1201 # Normalize the last part by removing ":" 1202 j=${j%::*} 1203 j=${j%:} 1204 ${IFCONFIG_CMD} ${_if} inet6 $j:: \ 1205 prefixlen $plen eui64 ${_action} 1206 1207 # if I am a router, add subnet router 1208 # anycast address (RFC 2373). 1209 if checkyesno ipv6_gateway_enable; then 1210 ${IFCONFIG_CMD} ${_if} inet6 $j:: \ 1211 prefixlen $plen ${_action} anycast 1212 fi 1213 done 1214 fi 1215} 1216 1217# ipv6_accept_rtadv_up if 1218# Enable accepting Router Advertisement and send Router 1219# Solicitation message 1220ipv6_accept_rtadv_up() 1221{ 1222 if ipv6_autoconfif $1; then 1223 ${IFCONFIG_CMD} $1 inet6 accept_rtadv up 1224 if [ -x /sbin/rtsol ]; then 1225 /sbin/rtsol ${rtsol_flags} $1 1226 fi 1227 return 0 1228 fi 1229 return 1 1230} 1231 1232# ipv6_accept_rtadv_down if 1233# Disable accepting Router Advertisement 1234ipv6_accept_rtadv_down() 1235{ 1236 if ipv6_autoconfif $1; then 1237 ${IFCONFIG_CMD} $1 inet6 -accept_rtadv 1238 fi 1239} 1240 1241# ifscript_up if 1242# Evaluate a startup script for the $if interface. 1243# It returns 0 if a script was found and processed or 1244# 1 if no script was found. 1245# 1246ifscript_up() 1247{ 1248 if [ -r /etc/start_if.$1 ]; then 1249 . /etc/start_if.$1 1250 return 0 1251 else 1252 return 1 1253 fi 1254} 1255 1256# ifscript_down if 1257# Evaluate a shutdown script for the $if interface. 1258# It returns 0 if a script was found and processed or 1259# 1 if no script was found. 1260# 1261ifscript_down() 1262{ 1263 if [ -r /etc/stop_if.$1 ]; then 1264 . /etc/stop_if.$1 1265 return 0 1266 else 1267 return 1 1268 fi 1269} 1270 1271# wlan_up 1272# Create IEEE802.11 interfaces. 1273# 1274wlan_up() 1275{ 1276 local _list _iflist parent child_wlans child create_args debug_flags 1277 _list= 1278 _iflist=$* 1279 1280 # Parse wlans_$parent="$child ..." 1281 for parent in `set | sed -nE 's/wlans_([a-z]+[a-z0-9]+[0-9]+)=.*/\1/p'`; do 1282 child_wlans=`get_if_var $parent wlans_IF` 1283 for child in ${child_wlans}; do 1284 create_args="wlandev $parent `get_if_var $child create_args_IF`" 1285 debug_flags="`get_if_var $child wlandebug_IF`" 1286 case $_iflist in 1287 ""|$child|$child[[:space:]]*|*[[:space:]]$child[[:space:]]*|*[[:space:]]$child) ;; 1288 *) continue ;; 1289 esac 1290 # Skip if ${child} already exists. 1291 if ${IFCONFIG_CMD} $child > /dev/null 2>&1; then 1292 continue 1293 fi 1294 if expr $child : 'wlan[0-9][0-9]*$' >/dev/null 2>&1; then 1295 ${IFCONFIG_CMD} $child create ${create_args} && cfg=0 1296 else 1297 ${IFCONFIG_CMD} wlan create ${create_args} name $child && cfg=0 1298 fi 1299 if [ $? -eq 0 ]; then 1300 _list="$_list $child" 1301 fi 1302 if [ -n "${debug_flags}" ]; then 1303 wlandebug -i $child ${debug_flags} 1304 fi 1305 done 1306 done 1307 if [ -n "${_list# }" ]; then 1308 echo "Created wlan(4) interfaces: ${_list# }." 1309 fi 1310 debug "Created wlan(4)s: ${_list# }" 1311} 1312 1313# wlan_down 1314# Destroy IEEE802.11 interfaces. 1315# 1316wlan_down() 1317{ 1318 local _list _iflist parent child_wlans child 1319 _list= 1320 _iflist=$* 1321 1322 # Parse wlans_$parent="$child ..." 1323 for parent in `set | sed -nE 's/wlans_([a-z]+[a-z0-9]+[0-9]+)=.*/\1/p'`; do 1324 child_wlans=`get_if_var $parent wlans_IF` 1325 for child in ${child_wlans}; do 1326 case $_iflist in 1327 ""|$child|$child[[:space:]]*|*[[:space:]]$child[[:space:]]*|*[[:space:]]$child) ;; 1328 *) continue ;; 1329 esac 1330 # Skip if ${child} doesn't exists. 1331 if ! ${IFCONFIG_CMD} $child > /dev/null 2>&1; then 1332 continue 1333 fi 1334 ${IFCONFIG_CMD} -n ${child} destroy 1335 if [ $? -eq 0 ]; then 1336 _list="$_list $child" 1337 fi 1338 done 1339 done 1340 if [ -n "${_list# }" ]; then 1341 echo "Destroyed wlan(4) interfaces: ${_list# }." 1342 fi 1343 debug "Destroyed wlan(4)s: ${_list# }" 1344} 1345 1346# clone_up 1347# Create cloneable interfaces. 1348# 1349clone_up() 1350{ 1351 local _list ifn ifopt _iflist _inet6 _n tmpargs 1352 _list= 1353 _iflist=$* 1354 1355 # create_args_IF 1356 for ifn in ${cloned_interfaces}; do 1357 # Parse ifn:ifopt. 1358 OIFS=$IFS; IFS=:; set -- $ifn; ifn=$1; ifopt=$2; IFS=$OIFS 1359 case $_iflist in 1360 ""|$ifn|$ifn[[:space:]]*|*[[:space:]]$ifn[[:space:]]*|*[[:space:]]$ifn) ;; 1361 *) continue ;; 1362 esac 1363 case $ifn in 1364 epair[0-9]*) 1365 # epair(4) uses epair[0-9] for creation and 1366 # epair[0-9][ab] for configuration. 1367 # 1368 # Skip if ${ifn}a or ${ifn}b already exist. 1369 if ${IFCONFIG_CMD} ${ifn}a > /dev/null 2>&1; then 1370 continue 1371 elif ${IFCONFIG_CMD} ${ifn}b > /dev/null 2>&1; then 1372 continue 1373 fi 1374 ${IFCONFIG_CMD} ${ifn} create \ 1375 `get_if_var ${ifn} create_args_IF` 1376 if [ $? -eq 0 ]; then 1377 _list="$_list ${ifn}a ${ifn}b" 1378 fi 1379 ;; 1380 *) 1381 # Skip if ${ifn} already exists. 1382 if ${IFCONFIG_CMD} $ifn > /dev/null 2>&1; then 1383 continue 1384 fi 1385 ${IFCONFIG_CMD} ${ifn} create \ 1386 `get_if_var ${ifn} create_args_IF` 1387 if [ $? -eq 0 ]; then 1388 _list="$_list $ifn" 1389 fi 1390 esac 1391 done 1392 for ifn in ${gif_interfaces}; do 1393 # Parse ifn:ifopt. 1394 OIFS=$IFS; IFS=:; set -- $ifn; ifn=$1; ifopt=$2; IFS=$OIFS 1395 case $_iflist in 1396 ""|$ifn|$ifn[[:space:]]*|*[[:space:]]$ifn[[:space:]]*|*[[:space:]]$ifn) ;; 1397 *) continue ;; 1398 esac 1399 # Skip if ifn already exists. 1400 if ${IFCONFIG_CMD} $ifn > /dev/null 2>&1; then 1401 continue 1402 fi 1403 case $ifn in 1404 gif[0-9]*) 1405 ${IFCONFIG_CMD} $ifn create 1406 ;; 1407 *) 1408 _n=$(${IFCONFIG_CMD} gif create) 1409 ${IFCONFIG_CMD} $_n name $ifn 1410 ;; 1411 esac 1412 if [ $? -eq 0 ]; then 1413 _list="$_list $ifn" 1414 tmpargs=$(get_if_var $ifn gifconfig_IF) 1415 _inet6='' 1416 case "$tmpargs" in 1417 '') 1418 ;; 1419 inet6[[:space:]]*) 1420 tmpargs=${tmpargs#inet6} 1421 _inet6=inet6 1422 # FALLTHROUGH 1423 ;& 1424 *) 1425 ${IFCONFIG_CMD} $ifn $_inet6 tunnel $tmpargs 1426 ;; 1427 esac 1428 fi 1429 done 1430 if [ -n "${_list# }" ]; then 1431 echo "Created clone interfaces: ${_list# }." 1432 fi 1433 debug "Cloned: ${_list# }" 1434} 1435 1436# clone_down 1437# Destroy cloned interfaces. Destroyed interfaces are echoed to 1438# standard output. 1439# 1440clone_down() 1441{ 1442 local _list ifn _difn ifopt _iflist _sticky 1443 _list= 1444 _iflist=$* 1445 1446 : ${cloned_interfaces_sticky:=NO} 1447 if checkyesno cloned_interfaces_sticky; then 1448 _sticky=1 1449 else 1450 _sticky=0 1451 fi 1452 for ifn in ${cloned_interfaces} ${gif_interfaces}; do 1453 # Parse ifn:ifopt. 1454 OIFS=$IFS; IFS=:; set -- $ifn; ifn=$1; ifopt=$2; IFS=$OIFS 1455 case $ifopt:$_sticky in 1456 sticky:*) continue ;; # :sticky => not destroy 1457 nosticky:*) ;; # :nosticky => destroy 1458 *:1) continue ;; # global sticky knob == 1 1459 esac 1460 case $_iflist in 1461 ""|$ifn|$ifn[[:space:]]*|*[[:space:]]$ifn[[:space:]]*|*[[:space:]]$ifn) ;; 1462 *) continue ;; 1463 esac 1464 case $ifn in 1465 epair[0-9]*) 1466 # Note: epair(4) uses epair[0-9] for removal and 1467 # epair[0-9][ab] for configuration. 1468 # 1469 # Skip if both of ${ifn}a and ${ifn}b do not exist. 1470 if ${IFCONFIG_CMD} ${ifn}a > /dev/null 2>&1; then 1471 _difn=${ifn}a 1472 elif ${IFCONFIG_CMD} ${ifn}b > /dev/null 2>&1; then 1473 _difn=${ifn}b 1474 else 1475 continue 1476 fi 1477 ${IFCONFIG_CMD} -n $_difn destroy 1478 if [ $? -eq 0 ]; then 1479 _list="$_list ${ifn}a ${ifn}b" 1480 fi 1481 ;; 1482 *) 1483 # Skip if ifn does not exist. 1484 if ! ${IFCONFIG_CMD} $ifn > /dev/null 2>&1; then 1485 continue 1486 fi 1487 ${IFCONFIG_CMD} -n ${ifn} destroy 1488 if [ $? -eq 0 ]; then 1489 _list="$_list $ifn" 1490 fi 1491 ;; 1492 esac 1493 done 1494 if [ -n "${_list# }" ]; then 1495 echo "Destroyed clone interfaces: ${_list# }." 1496 fi 1497 debug "Destroyed clones: ${_list# }" 1498} 1499 1500# childif_create 1501# Create and configure child interfaces. Return 0 if child 1502# interfaces are created. 1503# 1504childif_create() 1505{ 1506 local cfg child child_vlans create_args debug_flags ifn i 1507 cfg=1 1508 ifn=$1 1509 1510 # Create vlan interfaces 1511 child_vlans=`get_if_var $ifn vlans_IF` 1512 1513 if [ -n "${child_vlans}" ]; then 1514 load_kld if_vlan 1515 fi 1516 1517 for child in ${child_vlans}; do 1518 if expr $child : '[1-9][0-9]*$' >/dev/null 2>&1; then 1519 child="${ifn}.${child}" 1520 create_args=`get_if_var $child create_args_IF` 1521 ${IFCONFIG_CMD} $child create ${create_args} && cfg=0 1522 else 1523 create_args="vlandev $ifn `get_if_var $child create_args_IF`" 1524 if expr $child : 'vlan[0-9][0-9]*$' >/dev/null 2>&1; then 1525 ${IFCONFIG_CMD} $child create ${create_args} && cfg=0 1526 else 1527 i=`${IFCONFIG_CMD} vlan create ${create_args}` 1528 ${IFCONFIG_CMD} $i name $child && cfg=0 1529 fi 1530 fi 1531 if autoif $child; then 1532 ifn_start $child 1533 fi 1534 done 1535 1536 return ${cfg} 1537} 1538 1539# childif_destroy 1540# Destroy child interfaces. 1541# 1542childif_destroy() 1543{ 1544 local cfg child child_vlans ifn 1545 cfg=1 1546 1547 child_vlans=`get_if_var $ifn vlans_IF` 1548 for child in ${child_vlans}; do 1549 if expr $child : '[1-9][0-9]*$' >/dev/null 2>&1; then 1550 child="${ifn}.${child}" 1551 fi 1552 if ! ifexists $child; then 1553 continue 1554 fi 1555 ${IFCONFIG_CMD} -n $child destroy && cfg=0 1556 done 1557 1558 return ${cfg} 1559} 1560 1561# ng_mkpeer 1562# Create netgraph nodes. 1563# 1564ng_mkpeer() 1565{ 1566 ngctl -f - 2> /dev/null <<EOF 1567mkpeer $* 1568msg dummy nodeinfo 1569EOF 1570} 1571 1572# ng_create_one 1573# Create netgraph nodes. 1574# 1575ng_create_one() 1576{ 1577 local t 1578 1579 ng_mkpeer $* | while read line; do 1580 t=`expr "${line}" : '.* name="\([a-z]*[0-9]*\)" .*'` 1581 if [ -n "${t}" ]; then 1582 echo ${t} 1583 return 1584 fi 1585 done 1586} 1587 1588# ifnet_rename [ifname] 1589# Rename interfaces if ifconfig_IF_name is defined. 1590# 1591ifnet_rename() 1592{ 1593 local _if _ifname 1594 1595 # ifconfig_IF_name 1596 for _if in ${*:-$(${IFCONFIG_CMD} -l)}; do 1597 _ifname=`get_if_var $_if ifconfig_IF_name` 1598 if [ ! -z "$_ifname" ]; then 1599 ${IFCONFIG_CMD} $_if name $_ifname 1600 fi 1601 done 1602 1603 return 0 1604} 1605 1606# list_net_interfaces type 1607# List all network interfaces. The type of interface returned 1608# can be controlled by the type argument. The type 1609# argument can be any of the following: 1610# nodhcp - all interfaces, excluding DHCP configured interfaces 1611# dhcp - list only DHCP configured interfaces 1612# noautoconf - all interfaces, excluding IPv6 Stateless 1613# Address Autoconf configured interfaces 1614# autoconf - list only IPv6 Stateless Address Autoconf 1615# configured interfaces 1616# If no argument is specified all network interfaces are output. 1617# Note that the list will include cloned interfaces if applicable. 1618# Cloned interfaces must already exist to have a chance to appear 1619# in the list if ${network_interfaces} is set to `auto'. 1620# 1621list_net_interfaces() 1622{ 1623 local type _tmplist _list _autolist _lo _if 1624 type=$1 1625 1626 # Get a list of ALL the interfaces and make lo0 first if it's there. 1627 # 1628 _tmplist= 1629 case ${network_interfaces} in 1630 [Aa][Uu][Tt][Oo]) 1631 _autolist="`${IFCONFIG_CMD} -l`" 1632 _lo= 1633 for _if in ${_autolist} ; do 1634 if autoif $_if; then 1635 if [ "$_if" = "lo0" ]; then 1636 _lo="lo0 " 1637 else 1638 _tmplist="${_tmplist} ${_if}" 1639 fi 1640 fi 1641 done 1642 _tmplist="${_lo}${_tmplist# }" 1643 ;; 1644 *) 1645 for _if in ${network_interfaces} ${cloned_interfaces}; do 1646 # epair(4) uses epair[0-9] for creation and 1647 # epair[0-9][ab] for configuration. 1648 case $_if in 1649 epair[0-9]*) 1650 _tmplist="$_tmplist ${_if}a ${_if}b" 1651 ;; 1652 *) 1653 _tmplist="$_tmplist $_if" 1654 ;; 1655 esac 1656 done 1657 # 1658 # lo0 is effectively mandatory, so help prevent foot-shooting 1659 # 1660 case "$_tmplist" in 1661 lo0|'lo0 '*|*' lo0'|*' lo0 '*) 1662 # This is fine, do nothing 1663 _tmplist="${_tmplist# }" 1664 ;; 1665 *) 1666 _tmplist="lo0 ${_tmplist# }" 1667 ;; 1668 esac 1669 ;; 1670 esac 1671 1672 _list= 1673 case "$type" in 1674 nodhcp) 1675 for _if in ${_tmplist} ; do 1676 if ! dhcpif $_if && \ 1677 [ -n "`_ifconfig_getargs $_if`" ]; then 1678 _list="${_list# } ${_if}" 1679 fi 1680 done 1681 ;; 1682 dhcp) 1683 for _if in ${_tmplist} ; do 1684 if dhcpif $_if; then 1685 _list="${_list# } ${_if}" 1686 fi 1687 done 1688 ;; 1689 noautoconf) 1690 for _if in ${_tmplist} ; do 1691 if ! ipv6_autoconfif $_if && \ 1692 [ -n "`_ifconfig_getargs $_if ipv6`" ]; then 1693 _list="${_list# } ${_if}" 1694 fi 1695 done 1696 ;; 1697 autoconf) 1698 for _if in ${_tmplist} ; do 1699 if ipv6_autoconfif $_if; then 1700 _list="${_list# } ${_if}" 1701 fi 1702 done 1703 ;; 1704 *) 1705 _list=${_tmplist} 1706 ;; 1707 esac 1708 1709 echo $_list 1710 1711 return 0 1712} 1713 1714# get_default_if -address_family 1715# Get the interface of the default route for the given address family. 1716# The -address_family argument must be suitable passing to route(8). 1717# 1718get_default_if() 1719{ 1720 local routeget oldifs defif line 1721 defif= 1722 oldifs="$IFS" 1723 IFS=" 1724" 1725 for line in `route -n get $1 default 2>/dev/null`; do 1726 case $line in 1727 *interface:*) 1728 defif=${line##*: } 1729 ;; 1730 esac 1731 done 1732 IFS=${oldifs} 1733 1734 echo $defif 1735} 1736 1737# hexdigit arg 1738# Echo decimal number $arg (single digit) in hexadecimal format. 1739hexdigit() 1740{ 1741 printf '%x\n' "$1" 1742} 1743 1744# hexprint arg 1745# Echo decimal number $arg (multiple digits) in hexadecimal format. 1746hexprint() 1747{ 1748 printf '%x\n' "$1" 1749} 1750 1751is_wired_interface() 1752{ 1753 local media 1754 1755 case `${IFCONFIG_CMD} $1 2>/dev/null` in 1756 *media:?Ethernet*) media=Ethernet ;; 1757 esac 1758 1759 test "$media" = "Ethernet" 1760} 1761 1762# network6_getladdr if [flag] 1763# Echo link-local address from $if if any. 1764# If flag is defined, tentative ones will be excluded. 1765network6_getladdr() 1766{ 1767 local _if _flag proto addr rest 1768 _if=$1 1769 _flag=$2 1770 1771 ${IFCONFIG_CMD} $_if inet6 2>/dev/null | while read proto addr rest; do 1772 case "${proto}/${addr}/${_flag}/${rest}" in 1773 inet6/fe80::*//*) 1774 echo ${addr} 1775 ;; 1776 inet6/fe80:://*tentative*) # w/o flag 1777 sleep `${SYSCTL_N} net.inet6.ip6.dad_count` 1778 network6_getladdr $_if $_flags 1779 ;; 1780 inet6/fe80::/*/*tentative*) # w/ flag 1781 echo ${addr} 1782 ;; 1783 *) 1784 continue 1785 ;; 1786 esac 1787 1788 return 1789 done 1790} 1791