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