diff options
Diffstat (limited to 'libexec/rc/network.subr')
| -rw-r--r-- | libexec/rc/network.subr | 1790 |
1 files changed, 1790 insertions, 0 deletions
diff --git a/libexec/rc/network.subr b/libexec/rc/network.subr new file mode 100644 index 000000000000..5e4f2c1f39a0 --- /dev/null +++ b/libexec/rc/network.subr @@ -0,0 +1,1790 @@ +# +# Copyright (c) 2003 The FreeBSD Project. All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. +# +# +IFCONFIG_CMD="/sbin/ifconfig" +: ${netif_ipexpand_max:=2048} + +# +# Subroutines commonly used from network startup scripts. +# Requires that rc.conf be loaded first. +# + +# ifn_start ifn +# Bring up and configure an interface. If some configuration is +# applied, print the interface configuration. +# +ifn_start() +{ + local ifn cfg + ifn="$1" + cfg=1 + + [ -z "$ifn" ] && err 1 "ifn_start called without an interface" + + ifscript_up ${ifn} && cfg=0 + ifconfig_up ${ifn} && cfg=0 + if ! noafif $ifn; then + afexists inet6 && ipv6_up ${ifn} && cfg=0 + afexists inet && ipv4_up ${ifn} && cfg=0 + fi + childif_create ${ifn} && cfg=0 + + return $cfg +} + +# ifn_stop ifn +# Shutdown and de-configure an interface. If action is taken, +# print the interface name. +# +ifn_stop() +{ + local ifn cfg + ifn="$1" + cfg=1 + + [ -z "$ifn" ] && err 1 "ifn_stop called without an interface" + + if ! noafif $ifn; then + afexists inet && ipv4_down ${ifn} && cfg=0 + afexists inet6 && ipv6_down ${ifn} && cfg=0 + fi + ifconfig_down ${ifn} && cfg=0 + ifscript_down ${ifn} && cfg=0 + childif_destroy ${ifn} && cfg=0 + + return $cfg +} + +# ifn_vnetup ifn +# Move ifn to the specified vnet jail. +# +ifn_vnetup() +{ + + ifn_vnet0 $1 vnet +} + +# ifn_vnetdown ifn +# Reclaim ifn from the specified vnet jail. +# +ifn_vnetdown() +{ + + ifn_vnet0 $1 -vnet +} + +# ifn_vnet0 ifn action +# Helper function for ifn_vnetup and ifn_vnetdown. +# +ifn_vnet0() +{ + local _ifn _cfg _action _vnet + _ifn="$1" + _action="$2" + _cfg=1 + + if _vnet=$(vnetif $_ifn); then + ${IFCONFIG_CMD} $_ifn $_action $_vnet && _cfg=0 + fi + + return $_cfg +} + +# ifconfig_up if +# Evaluate ifconfig(8) arguments for interface $if and +# run ifconfig(8) with those arguments. It returns 0 if +# arguments were found and executed or 1 if the interface +# had no arguments. Pseudo arguments DHCP and WPA are handled +# here. +# +ifconfig_up() +{ + local _cfg _ifconfig_descr _ipv6_opts ifconfig_args + _cfg=1 + + # Make sure lo0 always comes up. + if [ "$1" = "lo0" ]; then + _cfg=0 + fi + + # inet6 specific + if ! noafif $1 && afexists inet6; then + if checkyesno ipv6_activate_all_interfaces; then + _ipv6_opts="-ifdisabled" + fi + + # backward compatibility: $ipv6_enable + case $ipv6_enable in + [Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1) + case $1 in + bridge[0-9]*) + # No accept_rtadv by default on if_bridge(4) + # to avoid a conflict with the member + # interfaces. + ;; + *) + if ! checkyesno ipv6_gateway_enable; then + _ipv6_opts="${_ipv6_opts} accept_rtadv" + fi + ;; + esac + ;; + esac + + case $ipv6_cpe_wanif in + $1) + _ipv6_opts="${_ipv6_opts} -no_radr accept_rtadv" + ;; + esac + + if [ -n "${_ipv6_opts}" ]; then + ${IFCONFIG_CMD} $1 inet6 ${_ipv6_opts} + fi + fi + + # ifconfig_IF + ifconfig_args=`ifconfig_getargs $1` + if [ -n "${ifconfig_args}" ]; then + eval ${IFCONFIG_CMD} $1 ${ifconfig_args} + _cfg=0 + fi + + # inet6 specific + if ! noafif $1 && afexists inet6; then + # ifconfig_IF_ipv6 + ifconfig_args=`ifconfig_getargs $1 ipv6` + if [ -n "${ifconfig_args}" ]; then + # backward compatibility: inet6 keyword + case "${ifconfig_args}" in + :*|[0-9a-fA-F]*:*) + warn "\$ifconfig_$1_ipv6 needs leading" \ + "\"inet6\" keyword for an IPv6 address." + ifconfig_args="inet6 ${ifconfig_args}" + ;; + esac + ${IFCONFIG_CMD} $1 inet6 -ifdisabled + eval ${IFCONFIG_CMD} $1 ${ifconfig_args} + _cfg=0 + fi + + # $ipv6_prefix_IF will be handled in + # ipv6_prefix_hostid_addr_common(). + ifconfig_args=`get_if_var $1 ipv6_prefix_IF` + if [ -n "${ifconfig_args}" ]; then + ${IFCONFIG_CMD} $1 inet6 -ifdisabled + _cfg=0 + fi + + # backward compatibility: $ipv6_ifconfig_IF + ifconfig_args=`get_if_var $1 ipv6_ifconfig_IF` + if [ -n "${ifconfig_args}" ]; then + warn "\$ipv6_ifconfig_$1 is obsolete." \ + " Use ifconfig_$1_ipv6 instead." + ${IFCONFIG_CMD} $1 inet6 -ifdisabled + eval ${IFCONFIG_CMD} $1 inet6 ${ifconfig_args} + _cfg=0 + fi + fi + + ifalias $1 link alias + ifalias $1 ether alias + + _ifconfig_descr=`get_if_var $1 ifconfig_IF_descr` + if [ -n "${_ifconfig_descr}" ]; then + ${IFCONFIG_CMD} $1 description "${_ifconfig_descr}" + fi + + if wpaif $1; then + /etc/rc.d/wpa_supplicant start $1 + _cfg=0 # XXX: not sure this should count + elif hostapif $1; then + /etc/rc.d/hostapd start $1 + _cfg=0 + elif [ ${_cfg} -eq 0 ]; then + ${IFCONFIG_CMD} $1 up + fi + + if ! noafif $1 && afexists inet6; then + ipv6_accept_rtadv_up $1 && _cfg=0 + fi + + if dhcpif $1; then + if [ $_cfg -ne 0 ] ; then + ${IFCONFIG_CMD} $1 up + fi + if syncdhcpif $1; then + /etc/rc.d/dhclient start $1 + fi + _cfg=0 + fi + + return $_cfg +} + +# ifconfig_down if +# returns 1 if wpa_supplicant or dhclient was stopped or +# the interface exists. +# +ifconfig_down() +{ + local _cfg + _cfg=1 + + if wpaif $1; then + /etc/rc.d/wpa_supplicant stop $1 + _cfg=0 + elif hostapif $1; then + /etc/rc.d/hostapd stop $1 + _cfg=0 + elif dhcpif $1; then + /etc/rc.d/dhclient stop $1 + _cfg=0 + fi + + if ifexists $1; then + ${IFCONFIG_CMD} $1 down + _cfg=0 + fi + + return $_cfg +} + +# get_if_var if var [default] +# Return the value of the pseudo-hash corresponding to $if where +# $var is a string containg the sub-string "IF" which will be +# replaced with $if after the characters defined in _punct are +# replaced with '_'. If the variable is unset, replace it with +# $default if given. +get_if_var() +{ + local _if _punct _punct_c _var _default prefix suffix + + if [ $# -ne 2 -a $# -ne 3 ]; then + err 3 'USAGE: get_if_var name var [default]' + fi + + _if=$1 + _punct=".-/+" + ltr ${_if} "${_punct}" '_' _if + _var=$2 + _default=$3 + + prefix=${_var%%IF*} + suffix=${_var##*IF} + eval echo \${${prefix}${_if}${suffix}-${_default}} +} + +# _ifconfig_getargs if [af] +# Prints the arguments for the supplied interface to stdout. +# Returns 1 if empty. In general, ifconfig_getargs should be used +# outside this file. +_ifconfig_getargs() +{ + local _ifn _af + _ifn=$1 + _af=${2+_$2} + + if [ -z "$_ifn" ]; then + return 1 + fi + + get_if_var $_ifn ifconfig_IF$_af "$ifconfig_DEFAULT" +} + +# ifconfig_getargs if [af] +# Takes the result from _ifconfig_getargs and removes pseudo +# args such as DHCP and WPA. +ifconfig_getargs() +{ + local _tmpargs _arg _args _vnet + _tmpargs=`_ifconfig_getargs $1 $2` + if [ $? -eq 1 ]; then + return 1 + fi + _args= + _vnet=0 + + for _arg in $_tmpargs; do + case $_arg:$_vnet in + [Dd][Hh][Cc][Pp]:0) ;; + [Nn][Oo][Aa][Uu][Tt][Oo]:0) ;; + [Nn][Oo][Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp]:0) ;; + [Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp]:0) ;; + [Ww][Pp][Aa]:0) ;; + [Hh][Oo][Ss][Tt][Aa][Pp]:0) ;; + vnet:0) _vnet=1 ;; + *:1) _vnet=0 ;; + *:0) + _args="$_args $_arg" + ;; + esac + done + + echo $_args +} + +# autoif +# Returns 0 if the interface should be automatically configured at +# boot time and 1 otherwise. +autoif() +{ + local _tmpargs _arg + _tmpargs=`_ifconfig_getargs $1` + + for _arg in $_tmpargs; do + case $_arg in + [Nn][Oo][Aa][Uu][Tt][Oo]) + return 1 + ;; + esac + done + + return 0 +} + +# dhcpif if +# Returns 0 if the interface is a DHCP interface and 1 otherwise. +dhcpif() +{ + local _tmpargs _arg + _tmpargs=`_ifconfig_getargs $1` + + case $1 in + lo[0-9]*|\ + stf[0-9]*|\ + lp[0-9]*|\ + sl[0-9]*) + return 1 + ;; + esac + if noafif $1; then + return 1 + fi + + for _arg in $_tmpargs; do + case $_arg in + [Dd][Hh][Cc][Pp]) + return 0 + ;; + [Nn][Oo][Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp]) + return 0 + ;; + [Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp]) + return 0 + ;; + esac + done + + return 1 +} + +# syncdhcpif +# Returns 0 if the interface should be configured synchronously and +# 1 otherwise. +syncdhcpif() +{ + local _tmpargs _arg + _tmpargs=`_ifconfig_getargs $1` + + if noafif $1; then + return 1 + fi + + for _arg in $_tmpargs; do + case $_arg in + [Nn][Oo][Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp]) + return 1 + ;; + [Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp]) + return 0 + ;; + esac + done + + checkyesno synchronous_dhclient +} + +# wpaif if +# Returns 0 if the interface is a WPA interface and 1 otherwise. +wpaif() +{ + local _tmpargs _arg + _tmpargs=`_ifconfig_getargs $1` + + for _arg in $_tmpargs; do + case $_arg in + [Ww][Pp][Aa]) + return 0 + ;; + esac + done + + return 1 +} + +# hostapif if +# Returns 0 if the interface is a HOSTAP interface and 1 otherwise. +hostapif() +{ + local _tmpargs _arg + _tmpargs=`_ifconfig_getargs $1` + + for _arg in $_tmpargs; do + case $_arg in + [Hh][Oo][Ss][Tt][Aa][Pp]) + return 0 + ;; + esac + done + + return 1 +} + +# vnetif if +# Returns 0 and echo jail if "vnet" keyword is specified on the +# interface, and 1 otherwise. +vnetif() +{ + local _tmpargs _arg _vnet + _tmpargs=`_ifconfig_getargs $1` + + _vnet=0 + for _arg in $_tmpargs; do + case $_arg:$_vnet in + vnet:0) _vnet=1 ;; + *:1) echo $_arg; return 0 ;; + esac + done + + return 1 +} + +# afexists af +# Returns 0 if the address family is enabled in the kernel +# 1 otherwise. +afexists() +{ + local _af + _af=$1 + + case ${_af} in + inet|inet6) + check_kern_features ${_af} + ;; + link|ether) + return 0 + ;; + *) + err 1 "afexists(): Unsupported address family: $_af" + ;; + esac +} + +# noafif if +# Returns 0 if the interface has no af configuration and 1 otherwise. +noafif() +{ + local _if + _if=$1 + + case $_if in + pflog[0-9]*|\ + pfsync[0-9]*|\ + usbus[0-9]*|\ + an[0-9]*|\ + ath[0-9]*|\ + ipw[0-9]*|\ + ipfw[0-9]*|\ + iwi[0-9]*|\ + iwn[0-9]*|\ + ral[0-9]*|\ + wi[0-9]*|\ + wl[0-9]*|\ + wpi[0-9]*) + return 0 + ;; + esac + + return 1 +} + +# ipv6if if +# Returns 0 if the interface should be configured for IPv6 and +# 1 otherwise. +ipv6if() +{ + local _if _tmpargs i + _if=$1 + + if ! afexists inet6; then + return 1 + fi + + # lo0 is always IPv6-enabled + case $_if in + lo0) + return 0 + ;; + esac + + case "${ipv6_network_interfaces}" in + $_if|"$_if "*|*" $_if"|*" $_if "*|[Aa][Uu][Tt][Oo]) + # True if $ifconfig_IF_ipv6 is defined. + _tmpargs=`_ifconfig_getargs $_if ipv6` + if [ -n "${_tmpargs}" ]; then + return 0 + fi + + # True if $ipv6_prefix_IF is defined. + _tmpargs=`get_if_var $_if ipv6_prefix_IF` + if [ -n "${_tmpargs}" ]; then + return 0 + fi + + # backward compatibility: True if $ipv6_ifconfig_IF is defined. + _tmpargs=`get_if_var $_if ipv6_ifconfig_IF` + if [ -n "${_tmpargs}" ]; then + return 0 + fi + ;; + esac + + return 1 +} + +# ipv6_autoconfif if +# Returns 0 if the interface should be configured for IPv6 with +# Stateless Address Configuration; 1 otherwise. +ipv6_autoconfif() +{ + local _if _tmpargs _arg + _if=$1 + + case $_if in + lo[0-9]*|\ + stf[0-9]*|\ + lp[0-9]*|\ + sl[0-9]*) + return 1 + ;; + esac + if noafif $_if; then + return 1 + fi + if ! ipv6if $_if; then + return 1 + fi + if checkyesno ipv6_gateway_enable; then + return 1 + fi + _tmpargs=`get_if_var $_if ipv6_prefix_IF` + if [ -n "${_tmpargs}" ]; then + return 1 + fi + # backward compatibility: $ipv6_enable + case $ipv6_enable in + [Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1) + if checkyesno ipv6_gateway_enable; then + return 1 + fi + case $1 in + bridge[0-9]*) + # No accept_rtadv by default on if_bridge(4) + # to avoid a conflict with the member + # interfaces. + return 1 + ;; + *) + return 0 + ;; + esac + ;; + esac + + _tmpargs=`_ifconfig_getargs $_if ipv6` + for _arg in $_tmpargs; do + case $_arg in + accept_rtadv) + return 0 + ;; + esac + done + + # backward compatibility: $ipv6_ifconfig_IF + _tmpargs=`get_if_var $_if ipv6_ifconfig_IF` + for _arg in $_tmpargs; do + case $_arg in + accept_rtadv) + return 0 + ;; + esac + done + + return 1 +} + +# ifexists if +# Returns 0 if the interface exists and 1 otherwise. +ifexists() +{ + [ -z "$1" ] && return 1 + ${IFCONFIG_CMD} -n $1 > /dev/null 2>&1 +} + +# ifisup if +# Returns 0 if the interface exists and UP, +# returns 1 if the interface exists and not UP, +# returns 2 otherwise. +ifisup() +{ + local _if + + [ -z "$1" ] && return 2 + _if="$1" + + set -- $(${IFCONFIG_CMD} -n ${_if} 2>/dev/null) + case "$1$2" in + ${_if}:*'<UP'[,\>]*) return 0 ;; + ${_if}:*) return 1 ;; + esac + + return 2 +} + +# ipv4_up if +# add IPv4 addresses to the interface $if +ipv4_up() +{ + local _if _ret + _if=$1 + _ret=1 + + # Add 127.0.0.1/8 to lo0 unless otherwise specified. + if [ "${_if}" = "lo0" ]; then + ifconfig_args=`get_if_var ${_if} ifconfig_IF` + if [ -z "${ifconfig_args}" ]; then + ${IFCONFIG_CMD} ${_if} inet 127.0.0.1/8 alias + fi + fi + ifalias ${_if} inet alias && _ret=0 + + return $_ret +} + +# ipv6_up if +# add IPv6 addresses to the interface $if +ipv6_up() +{ + local _if _ret + _if=$1 + _ret=1 + + if ! ipv6if $_if; then + return 0 + fi + + ifalias ${_if} inet6 alias && _ret=0 + ipv6_prefix_hostid_addr_common ${_if} alias && _ret=0 + + return $_ret +} + +# ipv4_down if +# remove IPv4 addresses from the interface $if +ipv4_down() +{ + local _if _ifs _ret inetList oldifs _inet + _if=$1 + _ifs="^" + _ret=1 + + ifalias ${_if} inet -alias && _ret=0 + + inetList="`${IFCONFIG_CMD} ${_if} | grep 'inet ' | tr "\n\t" "$_ifs"`" + + oldifs="$IFS" + IFS="$_ifs" + for _inet in $inetList ; do + # get rid of extraneous line + case $_inet in + inet[[:space:]]*) ;; + *) continue ;; + esac + + _inet=`expr "$_inet" : '.*\(inet \([0-9]\{1,3\}\.\)\{3\}[0-9]\{1,3\}\).*'` + + IFS="$oldifs" + ${IFCONFIG_CMD} ${_if} ${_inet} delete + IFS="$_ifs" + _ret=0 + done + IFS="$oldifs" + + return $_ret +} + +# ipv6_down if +# remove IPv6 addresses from the interface $if +ipv6_down() +{ + local _if _ifs _ret inetList oldifs _inet6 + _if=$1 + _ifs="^" + _ret=1 + + if ! ipv6if $_if; then + return 0 + fi + + ipv6_accept_rtadv_down ${_if} && _ret=0 + ipv6_prefix_hostid_addr_common ${_if} -alias && _ret=0 + ifalias ${_if} inet6 -alias && _ret=0 + + inetList="`${IFCONFIG_CMD} ${_if} | grep 'inet6 ' | tr "\n\t" "$_ifs"`" + + oldifs="$IFS" + IFS="$_ifs" + for _inet6 in $inetList ; do + # get rid of extraneous line + case $_inet6 in + inet6[[:space:]]*) ;; + *) continue ;; + esac + + _inet6=`expr "$_inet6" : '.*\(inet6 \([0-9a-f:]*\)\).*'` + + IFS="$oldifs" + ${IFCONFIG_CMD} ${_if} ${_inet6} -alias + IFS="$_ifs" + _ret=0 + done + IFS="$oldifs" + + return $_ret +} + +# ifalias if af action +# Configure or remove aliases for network interface $if. +# It returns 0 if at least one alias was configured or +# removed, or 1 if there were none. +# +ifalias() +{ + local _ret + _ret=1 + + afexists $2 || return $_ret + + case "$2" in + inet|inet6|link|ether) + ifalias_af_common $1 $2 $3 && _ret=0 + ;; + esac + + return $_ret +} + +# ifalias_expand_addr af action addr +# Expand address range ("N-M") specification in addr. +# "addr" must not include an address-family keyword. +# The results will include an address-family keyword. +# +ifalias_expand_addr() +{ + local _af _action + + _af=$1 + _action=$2 + shift 2 + + afexists $_af || return + ifalias_expand_addr_$_af $_action $* +} + +# ifalias_expand_addr_inet action addr +# Helper function for ifalias_expand_addr(). Handles IPv4. +# +ifalias_expand_addr_inet() +{ + local _action _arg _cidr _cidr_addr _exargs + local _ipaddr _plen _range _iphead _iptail _iplow _iphigh _ipcount + local _retstr _c + _action=$1 + _arg=$2 + shift 2 + _exargs=$* + _retstr= + + case $_action:$_arg:$_exargs in + *:*--*) return ;; # invalid + tmp:*[0-9]-[0-9]*:*) # to be expanded + _action="alias" + ;; + *:*[0-9]-[0-9]*:*) # to be expanded + ;; + tmp:*:*netmask*) # already expanded w/ netmask option + echo ${_arg%/[0-9]*} $_exargs && return + ;; + tmp:*:*) # already expanded w/o netmask option + echo $_arg $_exargs && return + ;; + *:*:*netmask*) # already expanded w/ netmask option + echo inet ${_arg%/[0-9]*} $_exargs && return + ;; + *:*:*) # already expanded w/o netmask option + echo inet $_arg $_exargs && return + ;; + esac + + for _cidr in $_arg; do + _ipaddr=${_cidr%%/*} + _plen=${_cidr##*/} + # When subnet prefix length is not specified, use /32. + case $_plen in + $_ipaddr) _plen=32 ;; # "/" character not found + esac + + OIFS=$IFS + IFS=. set -- $_ipaddr + _range= + _iphead= + _iptail= + for _c in $@; do + case $_range:$_c in + :[0-9]*-[0-9]*) + _range=$_c + ;; + :*) + _iphead="${_iphead}${_iphead:+.}${_c}" + ;; + *:*) + _iptail="${_iptail}${_iptail:+.}${_c}" + ;; + esac + done + IFS=$OIFS + _iplow=${_range%-*} + _iphigh=${_range#*-} + + # clear netmask when removing aliases + if [ "$_action" = "-alias" ]; then + _plen="" + fi + + _ipcount=$_iplow + while [ "$_ipcount" -le "$_iphigh" ]; do + _retstr="${_retstr} ${_iphead}${_iphead:+.}${_ipcount}${_iptail:+.}${_iptail}${_plen:+/}${_plen}" + if [ $_ipcount -gt $(($_iplow + $netif_ipexpand_max)) ]; then + warn "Range specification is too large (${_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." + break + else + _ipcount=$(($_ipcount + 1)) + fi + # Forcibly set /32 for remaining aliases. + _plen=32 + done + done + + for _c in $_retstr; do + ifalias_expand_addr_inet $_action $_c $_exargs + done +} + +# ifalias_expand_addr_inet6 action addr +# Helper function for ifalias_expand_addr(). Handles IPv6. +# +ifalias_expand_addr_inet6() +{ + local _action _arg _cidr _cidr_addr _exargs + local _ipaddr _plen _ipleft _ipright _iplow _iphigh _ipcount + local _ipv4part + local _retstr _c + _action=$1 + _arg=$2 + shift 2 + _exargs=$* + _retstr= + + case $_action:$_arg:$_exargs in + *:*--*:*) return ;; # invalid + tmp:*[0-9a-zA-Z]-[0-9a-zA-Z]*:*)# to be expanded + _action="alias" + ;; + *:*[0-9a-zA-Z]-[0-9a-zA-Z]*:*) # to be expanded + ;; + tmp:*:*prefixlen*) # already expanded w/ prefixlen option + echo ${_arg%/[0-9]*} $_exargs && return + ;; + tmp:*:*) # already expanded w/o prefixlen option + echo $_arg $_exargs && return + ;; + *:*:*prefixlen*) # already expanded w/ prefixlen option + echo inet6 ${_arg%/[0-9]*} $_exargs && return + ;; + *:*:*) # already expanded w/o prefixlen option + echo inet6 $_arg $_exargs && return + ;; + esac + + for _cidr in $_arg; do + _ipaddr="${_cidr%%/*}" + _plen="${_cidr##*/}" + + case $_action:$_ipaddr:$_cidr in + -alias:*:*) unset _plen ;; + *:$_cidr:$_ipaddr) unset _plen ;; + esac + + if [ "${_ipaddr%:*.*.*.*}" = "$_ipaddr" ]; then + # Handle !v4mapped && !v4compat addresses. + + # The default prefix length is 64. + case $_ipaddr:$_cidr in + $_cidr:$_ipaddr) _plen="64" ;; + esac + _ipleft=${_ipaddr%-*} + _ipright=${_ipaddr#*-} + _iplow=${_ipleft##*:} + _iphigh=${_ipright%%:*} + _ipleft=${_ipleft%:*} + _ipright=${_ipright#*:} + + if [ "$_iphigh" = "$_ipright" ]; then + unset _ipright + else + _ipright=:$_ipright + fi + + if [ -n "$_iplow" -a -n "$_iphigh" ]; then + _iplow=$((0x$_iplow)) + _iphigh=$((0x$_iphigh)) + _ipcount=$_iplow + while [ $_ipcount -le $_iphigh ]; do + _r=`printf "%s:%04x%s%s" \ + $_ipleft $_ipcount $_ipright \ + ${_plen:+/}$_plen` + _retstr="$_retstr $_r" + if [ $_ipcount -gt $(($_iplow + $netif_ipexpand_max)) ] + then + 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" "$_ipright") was processed. Increase \$netif_ipexpand_max in rc.conf." + break + else + _ipcount=$(($_ipcount + 1)) + fi + done + else + _retstr="${_ipaddr}${_plen:+/}${_plen}" + fi + + for _c in $_retstr; do + ifalias_expand_addr_inet6 $_action $_c $_exargs + done + else + # v4mapped/v4compat should handle as an IPv4 alias + _ipv4part=${_ipaddr##*:} + + # Adjust prefix length if any. If not, set the + # default prefix length as 32. + case $_ipaddr:$_cidr in + $_cidr:$_ipaddr) _plen=32 ;; + *) _plen=$(($_plen - 96)) ;; + esac + + _retstr=`ifalias_expand_addr_inet \ + tmp ${_ipv4part}${_plen:+/}${_plen}` + for _c in $_retstr; do + ifalias_expand_addr_inet $_action $_c $_exargs + done + fi + done +} + +# ifalias_af_common_handler if af action args +# Helper function for ifalias_af_common(). +# +ifalias_af_common_handler() +{ + local _ret _if _af _action _args _c _tmpargs + + _ret=1 + _if=$1 + _af=$2 + _action=$3 + shift 3 + _args=$* + + case $_args in + ${_af}[[:space:]]*) ;; + *) return ;; + esac + + # link(ether) does not support address removal. + case $_af:$_action in + link:-alias|ether:-alias) return ;; + esac + + _tmpargs= + for _c in $_args; do + case $_c in + ${_af}) + case $_tmpargs in + ${_af}[[:space:]]*[0-9a-fA-F]-*) + ifalias_af_common_handler $_if $_af $_action \ + `ifalias_expand_addr $_af $_action ${_tmpargs#${_af}[[:space:]]}` + ;; + ${_af}[[:space:]]*) + ${IFCONFIG_CMD} $_if $_tmpargs $_action && _ret=0 + ;; + esac + _tmpargs=$_af + ;; + *) + _tmpargs="$_tmpargs $_c" + ;; + esac + done + # Process the last component if any. + if [ -n "${_tmpargs}" ]; then + case $_tmpargs in + ${_af}[[:space:]]pass[[:space:]]*) + ${IFCONFIG_CMD} $_if $_tmpargs $_action && _ret=0 + ;; + ${_af}[[:space:]]*[0-9a-fA-F]-*) + ifalias_af_common_handler $_if $_af $_action \ + `ifalias_expand_addr $_af $_action ${_tmpargs#${_af}[[:space:]]}` + ;; + ${_af}[[:space:]]*) + ${IFCONFIG_CMD} $_if $_tmpargs $_action && _ret=0 + ;; + esac + fi + + return $_ret +} + +# ifalias_af_common if af action +# Helper function for ifalias(). +# +ifalias_af_common() +{ + local _ret _if _af _action alias ifconfig_args _aliasn _c _tmpargs _iaf + local _vif _punct=".-/+" + + _ret=1 + _aliasn= + _if=$1 + _af=$2 + _action=$3 + + # Normalize $_if before using it in a pattern to list_vars() + ltr "$_if" "$_punct" "_" _vif + + # ifconfig_IF_aliasN which starts with $_af + for alias in `list_vars ifconfig_${_vif}_alias[0-9]\* | + sort_lite -nk1.$((9+${#_vif}+7))` + do + eval ifconfig_args=\"\$$alias\" + _iaf= + case $ifconfig_args in + inet[[:space:]]*) _iaf=inet ;; + inet6[[:space:]]*) _iaf=inet6 ;; + link[[:space:]]*) _iaf=link ;; + ether[[:space:]]*) _iaf=ether ;; + esac + + case ${_af}:${_action}:${_iaf}:"${ifconfig_args}" in + ${_af}:*:${_af}:*) + _aliasn="$_aliasn $ifconfig_args" + ;; + ${_af}:*:"":"") + break + ;; + inet:alias:"":*) + _aliasn="$_aliasn inet $ifconfig_args" + warn "\$${alias} needs leading" \ + "\"inet\" keyword for an IPv4 address." + esac + done + + # backward compatibility: ipv6_ifconfig_IF_aliasN. + case $_af in + inet6) + for alias in `list_vars ipv6_ifconfig_${_vif}_alias[0-9]\* | + sort_lite -nk1.$((14+${#_vif}+7))` + do + eval ifconfig_args=\"\$$alias\" + case ${_action}:"${ifconfig_args}" in + *:"") + break + ;; + alias:*) + _aliasn="${_aliasn} inet6 ${ifconfig_args}" + warn "\$${alias} is obsolete. " \ + "Use ifconfig_${_vif}_aliasN instead." + ;; + esac + done + esac + + # backward compatibility: ipv4_addrs_IF. + for _tmpargs in `get_if_var $_if ipv4_addrs_IF`; do + _aliasn="$_aliasn inet $_tmpargs" + done + + # Handle ifconfig_IF_aliases, ifconfig_IF_aliasN, and the others. + _tmpargs= + for _c in `get_if_var $_if ifconfig_IF_aliases` $_aliasn; do + case $_c in + inet|inet6|link|ether) + case $_tmpargs in + ${_af}[[:space:]]*) + eval ifalias_af_common_handler $_if $_af $_action $_tmpargs && _ret=0 + ;; + esac + _tmpargs=$_c + ;; + *) + _tmpargs="$_tmpargs $_c" + esac + done + # Process the last component + case $_tmpargs in + ${_af}[[:space:]]*) + ifalias_af_common_handler $_if $_af $_action $_tmpargs && _ret=0 + ;; + esac + + return $_ret +} + +# ipv6_prefix_hostid_addr_common if action +# Add or remove IPv6 prefix + hostid addr on the interface $if +# +ipv6_prefix_hostid_addr_common() +{ + local _if _action prefix j + _if=$1 + _action=$2 + prefix=`get_if_var ${_if} ipv6_prefix_IF` + + if [ -n "${prefix}" ]; then + for j in ${prefix}; do + # The default prefixlen is 64. + plen=${j#*/} + case $j:$plen in + $plen:$j) plen=64 ;; + *) j=${j%/*} ;; + esac + + # Normalize the last part by removing ":" + j=${j%::*} + j=${j%:} + ${IFCONFIG_CMD} ${_if} inet6 $j:: \ + prefixlen $plen eui64 ${_action} + + # if I am a router, add subnet router + # anycast address (RFC 2373). + if checkyesno ipv6_gateway_enable; then + ${IFCONFIG_CMD} ${_if} inet6 $j:: \ + prefixlen $plen ${_action} anycast + fi + done + fi +} + +# ipv6_accept_rtadv_up if +# Enable accepting Router Advertisement and send Router +# Solicitation message +ipv6_accept_rtadv_up() +{ + if ipv6_autoconfif $1; then + ${IFCONFIG_CMD} $1 inet6 accept_rtadv up + if [ -x /sbin/rtsol ]; then + /sbin/rtsol ${rtsol_flags} $1 + fi + return 0 + fi + return 1 +} + +# ipv6_accept_rtadv_down if +# Disable accepting Router Advertisement +ipv6_accept_rtadv_down() +{ + if ipv6_autoconfif $1; then + ${IFCONFIG_CMD} $1 inet6 -accept_rtadv + fi +} + +# ifscript_up if +# Evaluate a startup script for the $if interface. +# It returns 0 if a script was found and processed or +# 1 if no script was found. +# +ifscript_up() +{ + if [ -r /etc/start_if.$1 ]; then + . /etc/start_if.$1 + return 0 + else + return 1 + fi +} + +# ifscript_down if +# Evaluate a shutdown script for the $if interface. +# It returns 0 if a script was found and processed or +# 1 if no script was found. +# +ifscript_down() +{ + if [ -r /etc/stop_if.$1 ]; then + . /etc/stop_if.$1 + return 0 + else + return 1 + fi +} + +# wlan_up +# Create IEEE802.11 interfaces. +# +wlan_up() +{ + local _list _iflist parent child_wlans child create_args debug_flags + _list= + _iflist=$* + + # Parse wlans_$parent="$child ..." + for parent in `set | sed -nE 's/wlans_([a-z]+[a-z0-9]+[0-9]+)=.*/\1/p'`; do + child_wlans=`get_if_var $parent wlans_IF` + for child in ${child_wlans}; do + create_args="wlandev $parent `get_if_var $child create_args_IF`" + debug_flags="`get_if_var $child wlandebug_IF`" + case $_iflist in + ""|$child|$child[[:space:]]*|*[[:space:]]$child[[:space:]]*|*[[:space:]]$child) ;; + *) continue ;; + esac + # Skip if ${child} already exists. + if ${IFCONFIG_CMD} $child > /dev/null 2>&1; then + continue + fi + if expr $child : 'wlan[0-9][0-9]*$' >/dev/null 2>&1; then + ${IFCONFIG_CMD} $child create ${create_args} && cfg=0 + else + ${IFCONFIG_CMD} wlan create ${create_args} name $child && cfg=0 + fi + if [ $? -eq 0 ]; then + _list="$_list $child" + fi + if [ -n "${debug_flags}" ]; then + wlandebug -i $child ${debug_flags} + fi + done + done + if [ -n "${_list# }" ]; then + echo "Created wlan(4) interfaces: ${_list# }." + fi + debug "Created wlan(4)s: ${_list# }" +} + +# wlan_down +# Destroy IEEE802.11 interfaces. +# +wlan_down() +{ + local _list _iflist parent child_wlans child + _list= + _iflist=$* + + # Parse wlans_$parent="$child ..." + for parent in `set | sed -nE 's/wlans_([a-z]+[a-z0-9]+[0-9]+)=.*/\1/p'`; do + child_wlans=`get_if_var $parent wlans_IF` + for child in ${child_wlans}; do + case $_iflist in + ""|$child|$child[[:space:]]*|*[[:space:]]$child[[:space:]]*|*[[:space:]]$child) ;; + *) continue ;; + esac + # Skip if ${child} doesn't exists. + if ! ${IFCONFIG_CMD} $child > /dev/null 2>&1; then + continue + fi + ${IFCONFIG_CMD} -n ${child} destroy + if [ $? -eq 0 ]; then + _list="$_list $child" + fi + done + done + if [ -n "${_list# }" ]; then + echo "Destroyed wlan(4) interfaces: ${_list# }." + fi + debug "Destroyed wlan(4)s: ${_list# }" +} + +# clone_up +# Create cloneable interfaces. +# +clone_up() +{ + local _list ifn ifopt _iflist _inet6 _n tmpargs + _list= + _iflist=$* + + # create_args_IF + for ifn in ${cloned_interfaces}; do + # Parse ifn:ifopt. + OIFS=$IFS; IFS=:; set -- $ifn; ifn=$1; ifopt=$2; IFS=$OIFS + case $_iflist in + ""|$ifn|$ifn[[:space:]]*|*[[:space:]]$ifn[[:space:]]*|*[[:space:]]$ifn) ;; + *) continue ;; + esac + case $ifn in + epair[0-9]*) + # epair(4) uses epair[0-9] for creation and + # epair[0-9][ab] for configuration. + # + # Skip if ${ifn}a or ${ifn}b already exist. + if ${IFCONFIG_CMD} ${ifn}a > /dev/null 2>&1; then + continue + elif ${IFCONFIG_CMD} ${ifn}b > /dev/null 2>&1; then + continue + fi + ${IFCONFIG_CMD} ${ifn} create \ + `get_if_var ${ifn} create_args_IF` + if [ $? -eq 0 ]; then + _list="$_list ${ifn}a ${ifn}b" + fi + ;; + *) + # Skip if ${ifn} already exists. + if ${IFCONFIG_CMD} $ifn > /dev/null 2>&1; then + continue + fi + ${IFCONFIG_CMD} ${ifn} create \ + `get_if_var ${ifn} create_args_IF` + if [ $? -eq 0 ]; then + _list="$_list $ifn" + fi + esac + done + for ifn in ${gif_interfaces}; do + # Parse ifn:ifopt. + OIFS=$IFS; IFS=:; set -- $ifn; ifn=$1; ifopt=$2; IFS=$OIFS + case $_iflist in + ""|$ifn|$ifn[[:space:]]*|*[[:space:]]$ifn[[:space:]]*|*[[:space:]]$ifn) ;; + *) continue ;; + esac + # Skip if ifn already exists. + if ${IFCONFIG_CMD} $ifn > /dev/null 2>&1; then + continue + fi + case $ifn in + gif[0-9]*) + ${IFCONFIG_CMD} $ifn create + ;; + *) + _n=$(${IFCONFIG_CMD} gif create) + ${IFCONFIG_CMD} $_n name $ifn + ;; + esac + if [ $? -eq 0 ]; then + _list="$_list $ifn" + tmpargs=$(get_if_var $ifn gifconfig_IF) + _inet6='' + case "$tmpargs" in + '') + ;; + inet6[[:space:]]*) + tmpargs=${tmpargs#inet6} + _inet6=inet6 + # FALLTHROUGH + ;& + *) + ${IFCONFIG_CMD} $ifn $_inet6 tunnel $tmpargs + ;; + esac + fi + done + if [ -n "${_list# }" ]; then + echo "Created clone interfaces: ${_list# }." + fi + debug "Cloned: ${_list# }" +} + +# clone_down +# Destroy cloned interfaces. Destroyed interfaces are echoed to +# standard output. +# +clone_down() +{ + local _list ifn _difn ifopt _iflist _sticky + _list= + _iflist=$* + + : ${cloned_interfaces_sticky:=NO} + if checkyesno cloned_interfaces_sticky; then + _sticky=1 + else + _sticky=0 + fi + for ifn in ${cloned_interfaces} ${gif_interfaces}; do + # Parse ifn:ifopt. + OIFS=$IFS; IFS=:; set -- $ifn; ifn=$1; ifopt=$2; IFS=$OIFS + case $ifopt:$_sticky in + sticky:*) continue ;; # :sticky => not destroy + nosticky:*) ;; # :nosticky => destroy + *:1) continue ;; # global sticky knob == 1 + esac + case $_iflist in + ""|$ifn|$ifn[[:space:]]*|*[[:space:]]$ifn[[:space:]]*|*[[:space:]]$ifn) ;; + *) continue ;; + esac + case $ifn in + epair[0-9]*) + # Note: epair(4) uses epair[0-9] for removal and + # epair[0-9][ab] for configuration. + # + # Skip if both of ${ifn}a and ${ifn}b do not exist. + if ${IFCONFIG_CMD} ${ifn}a > /dev/null 2>&1; then + _difn=${ifn}a + elif ${IFCONFIG_CMD} ${ifn}b > /dev/null 2>&1; then + _difn=${ifn}b + else + continue + fi + ${IFCONFIG_CMD} -n $_difn destroy + if [ $? -eq 0 ]; then + _list="$_list ${ifn}a ${ifn}b" + fi + ;; + *) + # Skip if ifn does not exist. + if ! ${IFCONFIG_CMD} $ifn > /dev/null 2>&1; then + continue + fi + ${IFCONFIG_CMD} -n ${ifn} destroy + if [ $? -eq 0 ]; then + _list="$_list $ifn" + fi + ;; + esac + done + if [ -n "${_list# }" ]; then + echo "Destroyed clone interfaces: ${_list# }." + fi + debug "Destroyed clones: ${_list# }" +} + +# childif_create +# Create and configure child interfaces. Return 0 if child +# interfaces are created. +# +childif_create() +{ + local cfg child child_vlans create_args debug_flags ifn i + cfg=1 + ifn=$1 + + # Create vlan interfaces + child_vlans=`get_if_var $ifn vlans_IF` + + if [ -n "${child_vlans}" ]; then + load_kld if_vlan + fi + + for child in ${child_vlans}; do + if expr $child : '[1-9][0-9]*$' >/dev/null 2>&1; then + child="${ifn}.${child}" + create_args=`get_if_var $child create_args_IF` + ${IFCONFIG_CMD} $child create ${create_args} && cfg=0 + else + create_args="vlandev $ifn `get_if_var $child create_args_IF`" + if expr $child : 'vlan[0-9][0-9]*$' >/dev/null 2>&1; then + ${IFCONFIG_CMD} $child create ${create_args} && cfg=0 + else + i=`${IFCONFIG_CMD} vlan create ${create_args}` + ${IFCONFIG_CMD} $i name $child && cfg=0 + fi + fi + if autoif $child; then + ifn_start $child + fi + done + + return ${cfg} +} + +# childif_destroy +# Destroy child interfaces. +# +childif_destroy() +{ + local cfg child child_vlans ifn + cfg=1 + + child_vlans=`get_if_var $ifn vlans_IF` + for child in ${child_vlans}; do + if expr $child : '[1-9][0-9]*$' >/dev/null 2>&1; then + child="${ifn}.${child}" + fi + if ! ifexists $child; then + continue + fi + ${IFCONFIG_CMD} -n $child destroy && cfg=0 + done + + return ${cfg} +} + +# ng_mkpeer +# Create netgraph nodes. +# +ng_mkpeer() +{ + ngctl -f - 2> /dev/null <<EOF +mkpeer $* +msg dummy nodeinfo +EOF +} + +# ng_create_one +# Create netgraph nodes. +# +ng_create_one() +{ + local t + + ng_mkpeer $* | while read line; do + t=`expr "${line}" : '.* name="\([a-z]*[0-9]*\)" .*'` + if [ -n "${t}" ]; then + echo ${t} + return + fi + done +} + +# ifnet_rename [ifname] +# Rename interfaces if ifconfig_IF_name is defined. +# +ifnet_rename() +{ + local _if _ifname + + # ifconfig_IF_name + for _if in ${*:-$(${IFCONFIG_CMD} -l)}; do + _ifname=`get_if_var $_if ifconfig_IF_name` + if [ ! -z "$_ifname" ]; then + ${IFCONFIG_CMD} $_if name $_ifname + fi + done + + return 0 +} + +# list_net_interfaces type +# List all network interfaces. The type of interface returned +# can be controlled by the type argument. The type +# argument can be any of the following: +# nodhcp - all interfaces, excluding DHCP configured interfaces +# dhcp - list only DHCP configured interfaces +# noautoconf - all interfaces, excluding IPv6 Stateless +# Address Autoconf configured interfaces +# autoconf - list only IPv6 Stateless Address Autoconf +# configured interfaces +# If no argument is specified all network interfaces are output. +# Note that the list will include cloned interfaces if applicable. +# Cloned interfaces must already exist to have a chance to appear +# in the list if ${network_interfaces} is set to `auto'. +# +list_net_interfaces() +{ + local type _tmplist _list _autolist _lo _if + type=$1 + + # Get a list of ALL the interfaces and make lo0 first if it's there. + # + _tmplist= + case ${network_interfaces} in + [Aa][Uu][Tt][Oo]) + _autolist="`${IFCONFIG_CMD} -l`" + _lo= + for _if in ${_autolist} ; do + if autoif $_if; then + if [ "$_if" = "lo0" ]; then + _lo="lo0 " + else + _tmplist="${_tmplist} ${_if}" + fi + fi + done + _tmplist="${_lo}${_tmplist# }" + ;; + *) + for _if in ${network_interfaces} ${cloned_interfaces}; do + # epair(4) uses epair[0-9] for creation and + # epair[0-9][ab] for configuration. + case $_if in + epair[0-9]*) + _tmplist="$_tmplist ${_if}a ${_if}b" + ;; + *) + _tmplist="$_tmplist $_if" + ;; + esac + done + # + # lo0 is effectively mandatory, so help prevent foot-shooting + # + case "$_tmplist" in + lo0|'lo0 '*|*' lo0'|*' lo0 '*) + # This is fine, do nothing + _tmplist="${_tmplist# }" + ;; + *) + _tmplist="lo0 ${_tmplist# }" + ;; + esac + ;; + esac + + _list= + case "$type" in + nodhcp) + for _if in ${_tmplist} ; do + if ! dhcpif $_if && \ + [ -n "`_ifconfig_getargs $_if`" ]; then + _list="${_list# } ${_if}" + fi + done + ;; + dhcp) + for _if in ${_tmplist} ; do + if dhcpif $_if; then + _list="${_list# } ${_if}" + fi + done + ;; + noautoconf) + for _if in ${_tmplist} ; do + if ! ipv6_autoconfif $_if && \ + [ -n "`_ifconfig_getargs $_if ipv6`" ]; then + _list="${_list# } ${_if}" + fi + done + ;; + autoconf) + for _if in ${_tmplist} ; do + if ipv6_autoconfif $_if; then + _list="${_list# } ${_if}" + fi + done + ;; + *) + _list=${_tmplist} + ;; + esac + + echo $_list + + return 0 +} + +# get_default_if -address_family +# Get the interface of the default route for the given address family. +# The -address_family argument must be suitable passing to route(8). +# +get_default_if() +{ + local routeget oldifs defif line + defif= + oldifs="$IFS" + IFS=" +" + for line in `route -n get $1 default 2>/dev/null`; do + case $line in + *interface:*) + defif=${line##*: } + ;; + esac + done + IFS=${oldifs} + + echo $defif +} + +# hexdigit arg +# Echo decimal number $arg (single digit) in hexadecimal format. +hexdigit() +{ + printf '%x\n' "$1" +} + +# hexprint arg +# Echo decimal number $arg (multiple digits) in hexadecimal format. +hexprint() +{ + printf '%x\n' "$1" +} + +is_wired_interface() +{ + local media + + case `${IFCONFIG_CMD} $1 2>/dev/null` in + *media:?Ethernet*) media=Ethernet ;; + esac + + test "$media" = "Ethernet" +} + +# network6_getladdr if [flag] +# Echo link-local address from $if if any. +# If flag is defined, tentative ones will be excluded. +network6_getladdr() +{ + local _if _flag proto addr rest + _if=$1 + _flag=$2 + + ${IFCONFIG_CMD} $_if inet6 2>/dev/null | while read proto addr rest; do + case "${proto}/${addr}/${_flag}/${rest}" in + inet6/fe80::*//*) + echo ${addr} + ;; + inet6/fe80:://*tentative*) # w/o flag + sleep `${SYSCTL_N} net.inet6.ip6.dad_count` + network6_getladdr $_if $_flags + ;; + inet6/fe80::/*/*tentative*) # w/ flag + echo ${addr} + ;; + *) + continue + ;; + esac + + return + done +} |