Date: Thu, 20 Jun 2013 02:29:49 +0000 (UTC) From: Hiroki Sato <hrs@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r252015 - in head: etc share/man/man5 Message-ID: <201306200229.r5K2TnfR085621@svn.freebsd.org>
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Author: hrs Date: Thu Jun 20 02:29:49 2013 New Revision: 252015 URL: http://svnweb.freebsd.org/changeset/base/252015 Log: - Add CIDR notation support like 192.168.1-2.10-16/24 to $ifconfig_IF_aliasN. This is an extended version of ipv4_addr_IF which supports both IPv4 and IPv6, and multiple range specifications. To avoid to generate too many addresses, the maximum number of the generated addresses is currently limited to 31. - Add $ifconfig_IF_aliases, which accepts multiple IP aliases in a variable. - ipv6_prefix_IF now supports !/64 prefix length. In addition to the old 64-bit format (2001:db8:1:1), a full 128-bit format like 2001:db8:1:1::/64 is supported. - Replace ifconfig command with $IFCONFIG_CMD variable to support a dry-run mode in the future. - Remove IP aliases before removing all of IPv4 addresses when doing "rc.d/netif down". - Add a DAD wait to network6_getladdr() because it is possible to fail to configure an EUI64 address when ipv6_prefix_IF is specified. A summary of the supported ifconfig_* variables is as follows: # IPv4 configuration. ifconfig_em0="inet 192.168.0.1" # IPv6 configuration. ifconfig_em0_ipv6="inet6 2001:db8::1/64" # IPv4 address range spec. Now deprecated. ipv4_addr_em0="10.2.1.1-10" # IPv6 alias. ifconfig_em0_alias0="inet6 2001:db8:5::1 prefixlen 70" # IPv4 alias. ifconfig_em0_alias1="inet 10.2.2.1/24" # IPv4 alias with range spec w/o AF keyword (backward compat). ifconfig_em0_alias2="10.3.1.1-10/32" # IPv6 alias with range spec. ifconfig_em0_alias3="inet6 2001:db8:20-2f::1/64" # ifconfig_IF_aliases is just like ifconfig_IF_aliasN. ifconfig_em0_aliases="inet 10.3.3.201-204/24 inet6 2001:db8:210-213::1/64 inet 10.1.1.1/24" # IPv6 alias (backward compat) ipv6_ifconfig_em0_alias0="inet6 2001:db8:f::1/64" # IPv6 alias w/o AF keyword (backward compat) ipv6_ifconfig_em0_alias1="2001:db8:f:1::1/64" # IPv6 prefix. ipv6_prefix_em0="2001:db8::/64" Tested by: Kimmo Paasiala Modified: head/etc/network.subr head/share/man/man5/rc.conf.5 Modified: head/etc/network.subr ============================================================================== --- head/etc/network.subr Thu Jun 20 02:26:32 2013 (r252014) +++ head/etc/network.subr Thu Jun 20 02:29:49 2013 (r252015) @@ -24,6 +24,10 @@ # # $FreeBSD$ # +IFCONFIG_CMD="/sbin/ifconfig" + +# Maximum number of addresses expanded from a address range specification. +_IPEXPANDMAX=31 # # Subroutines commonly used from network startup scripts. @@ -94,7 +98,7 @@ ifconfig_up() # ifconfig_IF ifconfig_args=`ifconfig_getargs $1` if [ -n "${ifconfig_args}" ]; then - eval ifconfig $1 ${ifconfig_args} + eval ${IFCONFIG_CMD} $1 ${ifconfig_args} _cfg=0 fi @@ -122,7 +126,7 @@ ifconfig_up() esac if [ -n "${_ipv6_opts}" ]; then - ifconfig $1 inet6 ${_ipv6_opts} + ${IFCONFIG_CMD} $1 inet6 ${_ipv6_opts} fi # ifconfig_IF_ipv6 @@ -136,8 +140,8 @@ ifconfig_up() ifconfig_args="inet6 ${ifconfig_args}" ;; esac - ifconfig $1 inet6 -ifdisabled - eval ifconfig $1 ${ifconfig_args} + ${IFCONFIG_CMD} $1 inet6 -ifdisabled + eval ${IFCONFIG_CMD} $1 ${ifconfig_args} _cfg=0 fi @@ -145,7 +149,7 @@ ifconfig_up() # ipv6_prefix_hostid_addr_common(). ifconfig_args=`get_if_var $1 ipv6_prefix_IF` if [ -n "${ifconfig_args}" ]; then - ifconfig $1 inet6 -ifdisabled + ${IFCONFIG_CMD} $1 inet6 -ifdisabled _cfg=0 fi @@ -154,14 +158,14 @@ ifconfig_up() if [ -n "${ifconfig_args}" ]; then warn "\$ipv6_ifconfig_$1 is obsolete." \ " Use ifconfig_$1_ipv6 instead." - ifconfig $1 inet6 -ifdisabled - eval ifconfig $1 inet6 ${ifconfig_args} + ${IFCONFIG_CMD} $1 inet6 -ifdisabled + eval ${IFCONFIG_CMD} $1 inet6 ${ifconfig_args} _cfg=0 fi fi if [ ${_cfg} -eq 0 ]; then - ifconfig $1 up + ${IFCONFIG_CMD} $1 up fi if wpaif $1; then @@ -171,7 +175,7 @@ ifconfig_up() if dhcpif $1; then if [ $_cfg -ne 0 ] ; then - ifconfig $1 up + ${IFCONFIG_CMD} $1 up fi if syncdhcpif $1; then /etc/rc.d/dhclient start $1 @@ -202,7 +206,7 @@ ifconfig_down() fi if ifexists $1; then - ifconfig $1 down + ${IFCONFIG_CMD} $1 down _cfg=0 fi @@ -539,7 +543,7 @@ ipv6_autoconfif() ifexists() { [ -z "$1" ] && return 1 - ifconfig -n $1 > /dev/null 2>&1 + ${IFCONFIG_CMD} -n $1 > /dev/null 2>&1 } # ipv4_up if @@ -554,11 +558,10 @@ ipv4_up() if [ "${_if}" = "lo0" ]; then ifconfig_args=`get_if_var ${_if} ifconfig_IF` if [ -z "${ifconfig_args}" ]; then - ifconfig ${_if} inet 127.0.0.1/8 alias + ${IFCONFIG_CMD} ${_if} inet 127.0.0.1/8 alias fi fi - ifalias_up ${_if} inet && _ret=0 - ipv4_addrs_common ${_if} alias && _ret=0 + ifalias ${_if} inet alias && _ret=0 return $_ret } @@ -575,7 +578,7 @@ ipv6_up() return 0 fi - ifalias_up ${_if} inet6 && _ret=0 + ifalias ${_if} inet6 alias && _ret=0 ipv6_prefix_hostid_addr_common ${_if} alias && _ret=0 ipv6_accept_rtadv_up ${_if} && _ret=0 @@ -591,7 +594,9 @@ ipv4_down() _ifs="^" _ret=1 - inetList="`ifconfig ${_if} | grep 'inet ' | tr "\n" "$_ifs"`" + ifalias ${_if} inet -alias && _ret=0 + + inetList="`${IFCONFIG_CMD} ${_if} | grep 'inet ' | tr "\n" "$_ifs"`" oldifs="$IFS" IFS="$_ifs" @@ -602,15 +607,12 @@ ipv4_down() _inet=`expr "$_inet" : '.*\(inet \([0-9]\{1,3\}\.\)\{3\}[0-9]\{1,3\}\).*'` IFS="$oldifs" - ifconfig ${_if} ${_inet} delete + ${IFCONFIG_CMD} ${_if} ${_inet} delete IFS="$_ifs" _ret=0 done IFS="$oldifs" - ifalias_down ${_if} inet && _ret=0 - ipv4_addrs_common ${_if} -alias && _ret=0 - return $_ret } @@ -629,9 +631,9 @@ ipv6_down() ipv6_accept_rtadv_down ${_if} && _ret=0 ipv6_prefix_hostid_addr_common ${_if} -alias && _ret=0 - ifalias_down ${_if} inet6 && _ret=0 + ifalias ${_if} inet6 -alias && _ret=0 - inetList="`ifconfig ${_if} | grep 'inet6 ' | tr "\n" "$_ifs"`" + inetList="`${IFCONFIG_CMD} ${_if} | grep 'inet6 ' | tr "\n" "$_ifs"`" oldifs="$IFS" IFS="$_ifs" @@ -642,7 +644,7 @@ ipv6_down() _inet6=`expr "$_inet6" : '.*\(inet6 \([0-9a-f:]*\)\).*'` IFS="$oldifs" - ifconfig ${_if} ${_inet6} -alias + ${IFCONFIG_CMD} ${_if} ${_inet6} -alias IFS="$_ifs" _ret=0 done @@ -651,234 +653,349 @@ ipv6_down() return $_ret } -# ipv4_addrs_common if action -# Evaluate the ifconfig_if_ipv4 arguments for interface $if and -# use $action to add or remove IPv4 addresses from $if. -ipv4_addrs_common() -{ - local _ret _if _action _cidr _cidr_addr - local _ipaddr _netmask _range _ipnet _iplow _iphigh _ipcount - _ret=1 - _if=$1 - _action=$2 - - # get ipv4-addresses - cidr_addr=`get_if_var $_if ipv4_addrs_IF` - - for _cidr in ${cidr_addr}; do - _ipaddr=${_cidr%%/*} - _netmask="/"${_cidr##*/} - _range=${_ipaddr##*.} - _ipnet=${_ipaddr%.*} - _iplow=${_range%-*} - _iphigh=${_range#*-} - - # clear netmask when removing aliases - if [ "${_action}" = "-alias" ]; then - _netmask="" - fi - - _ipcount=${_iplow} - while [ "${_ipcount}" -le "${_iphigh}" ]; do - eval "ifconfig ${_if} ${_action} ${_ipnet}.${_ipcount}${_netmask}" - _ipcount=$((${_ipcount}+1)) - _ret=0 - - # only the first ipaddr in a subnet need the real netmask - if [ "${_action}" != "-alias" ]; then - _netmask="/32" - fi - done - done - - return $_ret -} - -# ifalias_up if af -# Configure aliases for network interface $if. +# ifalias if af action +# Configure or remove aliases for network interface $if. # It returns 0 if at least one alias was configured or -# 1 if there were none. +# removed, or 1 if there were none. # -ifalias_up() +ifalias() { local _ret _ret=1 + afexists $2 || return $_ret + case "$2" in - inet) - _ret=`ifalias_ipv4_up "$1"` - ;; - inet6) - _ret=`ifalias_ipv6_up "$1"` + inet|inet6) + ifalias_af_common $1 $2 $3 && _ret=0 ;; esac return $_ret } -# ifalias_ipv4_up if -# Helper function for ifalias_up(). Handles IPv4. +# 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_ipv4_up() +ifalias_expand_addr() { - local _ret alias ifconfig_args - _ret=1 - - # ifconfig_IF_aliasN which starts with "inet" - alias=0 - while : ; do - ifconfig_args=`get_if_var $1 ifconfig_IF_alias${alias}` - case "${ifconfig_args}" in - inet\ *) - ifconfig $1 ${ifconfig_args} alias && _ret=0 - ;; - inet6\ *) - ;; - "") - break - ;; - *) - warn "\$ifconfig_$1_alias${alias} needs " \ - "\"inet\" keyword for an IPv4 address." - ifconfig $1 ${ifconfig_args} alias && _ret=0 - ;; - esac - alias=$((${alias} + 1)) - done - return $_ret + afexists $1 || return + ifalias_expand_addr_$1 $2 $3 } -# ifalias_ipv6_up if -# Helper function for ifalias_up(). Handles IPv6. +# ifalias_expand_addr_inet action addr +# Helper function for ifalias_expand_addr(). Handles IPv4. # -ifalias_ipv6_up() +ifalias_expand_addr_inet() { - local _ret alias ifconfig_args - _ret=1 + local _action _arg _cidr _cidr_addr + local _ipaddr _plen _range _iphead _iptail _iplow _iphigh _ipcount + local _retstr _c + _action=$1 + _arg=$2 + _retstr= - # ifconfig_IF_aliasN which starts with "inet6" - alias=0 - while : ; do - ifconfig_args=`get_if_var $1 ifconfig_IF_alias${alias}` - case "${ifconfig_args}" in - inet6\ *) - ifconfig $1 ${ifconfig_args} alias && _ret=0 - ;; - "") - break - ;; + case $_action:$_arg in + *:*--*) return ;; # invalid + tmp:*) echo $_arg && return ;; # already expanded + tmp:*-*) _action="alias" ;; # to be expanded + *:*-*) ;; # to be expanded + *:*) echo inet $_arg && return ;; # already expanded + esac + + for _cidr in $_arg; do + _ipaddr=${_cidr%%/*} + _plen=${_cidr##*/} + # When subnet prefix length is not specified, use /32. + case $_plen in + $_ipaddr) _plen=32 ;; # "/" character not found esac - alias=$((${alias} + 1)) - done - # backward compatibility: ipv6_ifconfig_IF_aliasN. - alias=0 - while : ; do - ifconfig_args=`get_if_var $1 ipv6_ifconfig_IF_alias${alias}` - case "${ifconfig_args}" in - "") - break + OIFS=$IFS + IFS=. set -- $_ipaddr + _range= + _iphead= + _iptail= + for _c in $@; do + case $_range:$_c in + :[0-9]*-[0-9]*) + _range=$_c ;; - *) - ifconfig $1 inet6 ${ifconfig_args} alias && _ret=0 - warn "\$ipv6_ifconfig_$1_alias${alias} is obsolete." \ - " Use ifconfig_$1_aliasN instead." + :*) + _iphead="${_iphead}${_iphead:+.}${_c}" ;; - esac - alias=$((${alias} + 1)) + *:*) + _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 + $_IPEXPANDMAX)) ]; then + warn "Range specification is too large (${_iphead}${_iphead:+.}${_iplow}${_iptail:+.}${_iptail}-${_iphead}${_iphead:+.}${_iphigh}${_iptail:+.}${_iptail}). ${_iphead}${_iphead:+.}${_iplow}${_iptail:+.}${_iptail}-${_iphead}${_iphead:+.}${_ipcount}${_iptail:+.}${_iptail} was processed." + break + else + _ipcount=$(($_ipcount + 1)) + fi + # Forcibly set /32 for remaining aliases. + _plen=32 + done done - return $_ret + for _c in $_retstr; do + ifalias_expand_addr_inet $_action $_c + done } -# ifalias_down if af -# Remove aliases for network interface $if. -# It returns 0 if at least one alias was removed or -# 1 if there were none. +# ifalias_expand_addr_inet6 action addr +# Helper function for ifalias_expand_addr(). Handles IPv6. # -ifalias_down() -{ - local _ret - _ret=1 - - case "$2" in - inet) - _ret=`ifalias_ipv4_down "$1"` - ;; - inet6) - _ret=`ifalias_ipv6_down "$1"` - ;; +ifalias_expand_addr_inet6() +{ + local _action _arg _cidr _cidr_addr + local _ipaddr _plen _ipleft _ipright _iplow _iphigh _ipcount + local _ipv4part + local _retstr _c + _action=$1 + _arg=$2 + _retstr= + + case $_action:$_arg in + *:*--*) return ;; # invalid + tmp:*) echo $_arg && return ;; + tmp:*-*) _action="alias" ;; + *:*-*) ;; + *:*) echo inet6 $_arg && return ;; esac - return $_ret + 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 + $_IPEXPANDMAX)) ] + then + warn "Range specification is too large $(printf '(%s:%04x%s-%s:%04x%s)' $_ipleft $_iplow $_ipright $_ipleft $_iphigh $_ipright). $(printf '%s:%04x%s-%s:%04x%s' $_ipleft $_iplow $_ipright $_ipleft $_ipcount $_ipright) was processed." + break + else + _ipcount=$(($_ipcount + 1)) + fi + done + else + _retstr="${_ipaddr}${_plen:+/}${_plen}" + fi + + for _c in $_retstr; do + ifalias_expand_addr_inet6 $_action $_c + done + else + # v4mapped/v4compat should handle as an IPv4 alias + _ipv4part=${_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 + done + fi + done } -# ifalias_ipv4_down if -# Helper function for ifalias_down(). Handles IPv4. +# ifalias_af_common_handler if af action args +# Helper function for ifalias_af_common(). # -ifalias_ipv4_down() +ifalias_af_common_handler() { - local _ret alias ifconfig_args + local _ret _if _af _action _args _c _tmpargs + _ret=1 + _if=$1 + _af=$2 + _action=$3 + shift 3 + _args=$* + + case $_args in + ${_af}\ *) ;; + *) return ;; + esac - # ifconfig_IF_aliasN which starts with "inet" - alias=0 - while : ; do - ifconfig_args=`get_if_var $1 ifconfig_IF_alias${alias}` - case "${ifconfig_args}" in - inet\ *) - ifconfig $1 ${ifconfig_args} -alias && _ret=0 + _tmpargs= + for _c in $_args; do + case $_c in + ${_af}) + case $_tmpargs in + ${_af}\ *-*) + ifalias_af_common_handler $_if $_af $_action \ + `ifalias_expand_addr $_af $_action ${_tmpargs#${_af}\ }` ;; - "") - break + ${_af}\ *) + ${IFCONFIG_CMD} $_if $_tmpargs $_action && _ret=0 ;; + esac + _tmpargs=$_af + ;; + *) + _tmpargs="$_tmpargs $_c" + ;; esac - alias=$((${alias} + 1)) done + # Process the last component if any. + if [ -n "$_tmpargs}" ]; then + case $_tmpargs in + ${_af}\ *-*) + ifalias_af_common_handler $_if $_af $_action \ + `ifalias_expand_addr $_af $_action ${_tmpargs#${_af}\ }` + ;; + ${_af}\ *) + ${IFCONFIG_CMD} $_if $_tmpargs $_action && _ret=0 + ;; + esac + fi return $_ret } -# ifalias_ipv6_down if -# Helper function for ifalias_down(). Handles IPv6. +# ifalias_af_common if af action +# Helper function for ifalias(). # -ifalias_ipv6_down() +ifalias_af_common() { - local _ret alias ifconfig_args + local _ret _if _af _action alias ifconfig_args _aliasn _c _tmpargs _iaf + _ret=1 + _aliasn= + _if=$1 + _af=$2 + _action=$3 - # ifconfig_IF_aliasN which starts with "inet6" + # ifconfig_IF_aliasN which starts with $_af alias=0 while : ; do - ifconfig_args=`get_if_var $1 ifconfig_IF_alias${alias}` - case "${ifconfig_args}" in - inet6\ *) - ifconfig $1 ${ifconfig_args} -alias && _ret=0 + ifconfig_args=`get_if_var $_if ifconfig_IF_alias${alias}` + _iaf= + case $ifconfig_args in + inet\ *) _iaf=inet ;; + inet6\ *) _iaf=inet6 ;; + ipx\ *) _iaf=ipx ;; + esac + + case ${_af}:${_action}:${_iaf}:"${ifconfig_args}" in + ${_af}:*:${_af}:*) + _aliasn="$_aliasn $ifconfig_args" ;; - "") + ${_af}:*:"":"") break ;; + inet:alias:"":*) + _aliasn="$_aliasn inet $ifconfig_args" + warn "\$ifconfig_${_if}_alias${alias} needs " \ + "\"inet\" keyword for an IPv4 address." esac - alias=$((${alias} + 1)) + alias=$(($alias + 1)) done # backward compatibility: ipv6_ifconfig_IF_aliasN. - alias=0 - while : ; do - ifconfig_args=`get_if_var $1 ipv6_ifconfig_IF_alias${alias}` - case "${ifconfig_args}" in - "") - break + case $_af in + inet6) + alias=0 + while : ; do + ifconfig_args=`get_if_var $_if ipv6_ifconfig_IF_alias${alias}` + case ${_action}:"${ifconfig_args}" in + *:"") + break + ;; + alias:*) + _aliasn="${_aliasn} inet6 ${ifconfig_args}" + warn "\$ipv6_ifconfig_${_if}_alias${alias} " \ + "is obsolete. Use ifconfig_$1_aliasN " \ + "instead." ;; - *) - ifconfig $1 inet6 ${ifconfig_args} -alias && _ret=0 - warn "\$ipv6_ifconfig_$1_alias${alias} is obsolete." \ - " Use ifconfig_$1_aliasN instead." + esac + alias=$(($alias + 1)) + 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|ipx) + case $_tmpargs in + ${_af}\ *) + eval ifalias_af_common_handler $_if $_af $_action $_tmpargs && _ret=0 ;; + esac + _tmpargs=$_c + ;; + *) + _tmpargs="$_tmpargs $_c" esac - alias=$((${alias} + 1)) done + # Process the last component + case $_tmpargs in + ${_af}\ *) + ifalias_af_common_handler $_if $_af $_action $_tmpargs && _ret=0 + ;; + esac return $_ret } @@ -899,14 +1016,32 @@ ipv6_prefix_hostid_addr_common() hostid=${hostid%\%*} for j in ${prefix}; do - address=$j\:${hostid} - ifconfig ${_if} inet6 ${address} prefixlen 64 ${_action} + # The default prefixlen is 64. + plen=${j#*/} + case $j:$plen in + $plen:$j) plen=64 ;; + *) j=${j%/*} ;; + esac + + # Normalize the last part by removing ":" + j=${j%:*} + j=${j%:} + OIFS=$IFS; IFS=":"; set -- $j; nj=$#; IFS=$OIFS + OIFS=$IFS; IFS=":"; set -- $hostid; nh=$#; IFS=$OIFS + if [ $(($nj + $nh)) -eq 8 ]; then + address=$j\:$hostid + else + address=$j\::$hostid + fi + + ${IFCONFIG_CMD} ${_if} inet6 ${address} \ + prefixlen $plen ${_action} # if I am a router, add subnet router # anycast address (RFC 2373). if checkyesno ipv6_gateway_enable; then - ifconfig ${_if} inet6 $j:: prefixlen 64 \ - ${_action} anycast + ${IFCONFIG_CMD} ${_if} inet6 $j:: \ + prefixlen $plen ${_action} anycast fi done fi @@ -918,7 +1053,7 @@ ipv6_prefix_hostid_addr_common() ipv6_accept_rtadv_up() { if ipv6_autoconfif $1; then - ifconfig $1 inet6 accept_rtadv up + ${IFCONFIG_CMD} $1 inet6 accept_rtadv up if ! checkyesno rtsold_enable; then rtsol ${rtsol_flags} $1 fi @@ -930,7 +1065,7 @@ ipv6_accept_rtadv_up() ipv6_accept_rtadv_down() { if ipv6_autoconfif $1; then - ifconfig $1 inet6 -accept_rtadv + ${IFCONFIG_CMD} $1 inet6 -accept_rtadv fi } @@ -975,7 +1110,7 @@ clone_up() # create_args_IF for ifn in ${cloned_interfaces}; do - ifconfig ${ifn} create `get_if_var ${ifn} create_args_IF` + ${IFCONFIG_CMD} ${ifn} create `get_if_var ${ifn} create_args_IF` if [ $? -eq 0 ]; then _list="${_list}${_prefix}${ifn}" [ -z "$_prefix" ] && _prefix=' ' @@ -995,7 +1130,7 @@ clone_down() _list= for ifn in ${cloned_interfaces}; do - ifconfig -n ${ifn} destroy + ${IFCONFIG_CMD} -n ${ifn} destroy if [ $? -eq 0 ]; then _list="${_list}${_prefix}${ifn}" [ -z "$_prefix" ] && _prefix=' ' @@ -1022,16 +1157,16 @@ childif_create() debug_flags="`get_if_var $child wlandebug_IF`" if expr $child : 'wlan[0-9][0-9]*$' >/dev/null 2>&1; then - ifconfig $child create ${create_args} && cfg=0 + ${IFCONFIG_CMD} $child create ${create_args} && cfg=0 if [ -n "${debug_flags}" ]; then wlandebug -i $child ${debug_flags} fi else - i=`ifconfig wlan create ${create_args}` + i=`${IFCONFIG_CMD} wlan create ${create_args}` if [ -n "${debug_flags}" ]; then wlandebug -i $i ${debug_flags} fi - ifconfig $i name $child && cfg=0 + ${IFCONFIG_CMD} $i name $child && cfg=0 fi if autoif $child; then ifn_start $child @@ -1049,14 +1184,14 @@ childif_create() 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 $child create ${create_args} && cfg=0 + ${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 $child create ${create_args} && cfg=0 + ${IFCONFIG_CMD} $child create ${create_args} && cfg=0 else - i=`ifconfig vlan create ${create_args}` - ifconfig $i name $child && cfg=0 + i=`${IFCONFIG_CMD} vlan create ${create_args}` + ${IFCONFIG_CMD} $i name $child && cfg=0 fi fi if autoif $child; then @@ -1080,7 +1215,7 @@ childif_destroy() if ! ifexists $child; then continue fi - ifconfig -n $child destroy && cfg=0 + ${IFCONFIG_CMD} -n $child destroy && cfg=0 done child_vlans=`get_if_var $ifn vlans_IF` @@ -1091,7 +1226,7 @@ childif_destroy() if ! ifexists $child; then continue fi - ifconfig -n $child destroy && cfg=0 + ${IFCONFIG_CMD} -n $child destroy && cfg=0 done return ${cfg} @@ -1138,13 +1273,13 @@ gif_up() ;; *) if expr $i : 'gif[0-9][0-9]*$' >/dev/null 2>&1; then - ifconfig $i create >/dev/null 2>&1 + ${IFCONFIG_CMD} $i create >/dev/null 2>&1 else - gif=`ifconfig gif create` - ifconfig $gif name $i + gif=`${IFCONFIG_CMD} gif create` + ${IFCONFIG_CMD} $gif name $i fi - ifconfig $i tunnel ${peers} - ifconfig $i up + ${IFCONFIG_CMD} $i tunnel ${peers} + ${IFCONFIG_CMD} $i up ;; esac done @@ -1210,7 +1345,7 @@ ipx_up() # ifconfig_IF_ipx ifconfig_args=`_ifconfig_getargs $ifn ipx` if [ -n "${ifconfig_args}" ]; then - ifconfig ${ifn} ${ifconfig_args} + ${IFCONFIG_CMD} ${ifn} ${ifconfig_args} return 0 fi @@ -1227,7 +1362,7 @@ ipx_down() _if=$1 _ifs="^" _ret=1 - ipxList="`ifconfig ${_if} | grep 'ipx ' | tr "\n" "$_ifs"`" + ipxList="`${IFCONFIG_CMD} ${_if} | grep 'ipx ' | tr "\n" "$_ifs"`" oldifs="$IFS" IFS="$_ifs" @@ -1238,7 +1373,7 @@ ipx_down() _ipx=`expr "$_ipx" : '.*\(ipx [0-9a-h]\{1,8\}H*\.[0-9a-h]\{1,12\}\).*'` IFS="$oldifs" - ifconfig ${_if} ${_ipx} delete + ${IFCONFIG_CMD} ${_if} ${_ipx} delete IFS="$_ifs" _ret=0 done @@ -1255,10 +1390,10 @@ ifnet_rename() local _if _ifname # ifconfig_IF_name - for _if in `ifconfig -l`; do + for _if in `${IFCONFIG_CMD} -l`; do _ifname=`get_if_var $_if ifconfig_IF_name` if [ ! -z "$_ifname" ]; then - ifconfig $_if name $_ifname + ${IFCONFIG_CMD} $_if name $_ifname fi done @@ -1290,7 +1425,7 @@ list_net_interfaces() _tmplist= case ${network_interfaces} in [Aa][Uu][Tt][Oo]) - _autolist="`ifconfig -l`" + _autolist="`${IFCONFIG_CMD} -l`" _lo= for _if in ${_autolist} ; do if autoif $_if; then @@ -1398,7 +1533,7 @@ is_wired_interface() { local media - case `ifconfig $1 2>/dev/null` in + case `${IFCONFIG_CMD} $1 2>/dev/null` in *media:?Ethernet*) media=Ethernet ;; esac @@ -1410,25 +1545,27 @@ is_wired_interface() # If flag is defined, tentative ones will be excluded. network6_getladdr() { - local proto addr rest - ifconfig $1 2>/dev/null | while read proto addr rest; do - case ${proto} in - inet6) - case ${addr} in - fe80::*) - if [ -z "$2" ]; then - echo ${addr} - return - fi - case ${rest} in - *tentative*) - continue - ;; - *) - echo ${addr} - return - esac - esac + local _if _flag proto addr rest + _if=$1 + _flag=$2 + + ${IFCONFIG_CMD} $_if 2>/dev/null | while read proto addr rest; do + case "${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 } Modified: head/share/man/man5/rc.conf.5 ============================================================================== --- head/share/man/man5/rc.conf.5 Thu Jun 20 02:26:32 2013 (r252014) +++ head/share/man/man5/rc.conf.5 Thu Jun 20 02:29:49 2013 (r252015) @@ -24,7 +24,7 @@ .\" .\" $FreeBSD$ .\" -.Dd June 9, 2013 +.Dd June 20, 2013 .Dt RC.CONF 5 .Os .Sh NAME @@ -1124,44 +1124,63 @@ Such keywords are removed before passing .Xr ifconfig 8 while the order of the other arguments is preserved. .Pp -One can configure more than one IPv4 address with the -.Va ipv4_addrs_ Ns Aq Ar interface -variable. -One or more IP addresses must be provided in Classless Inter-Domain -Routing (CIDR) address notation, whose last byte can be a range like -192.0.2.5-23/24. -In this case the address 192.0.2.5 will be configured with the +It is possible to add IP alias entries using +.Xr ifconfig 8 +syntax with the address family keyword such as +.Li inet . +Assuming that the interface in question was +.Li ed0 , +it might look something like this: +.Bd -literal +ifconfig_ed0_alias0="inet 127.0.0.253 netmask 0xffffffff" +ifconfig_ed0_alias1="inet 127.0.0.254 netmask 0xffffffff" +.Ed +.Pp +It also possible to configure multiple IP addresses in Classless +Inter-Domain Routing +.Pq CIDR +address notation, +whose each address component can be a range like +.Li inet 192.0.2.5-23/24 +or +.Li inet6 2001:db8:1-f::1/64 . +This notation allows address and prefix length part only, +not the other address modifiers. +.Pp +In the case of +.Li 192.0.2.5-23/24 , +the address 192.0.2.5 will be configured with the netmask /24 and the addresses 192.0.2.6 to 192.0.2.23 with the non-conflicting netmask /32 as explained in the .Xr ifconfig 8 alias section. +Note that this special netmask handling is only for +.Li inet , +not for the other address families such as +.Li inet6 . +.Pp With the interface in question being .Li ed0 , an example could look like: .Bd -literal -ipv4_addrs_ed0="192.0.2.129/27 192.0.2.1-5/28" +ifconfig_ed0_alias2="inet 192.0.2.129/27" *** DIFF OUTPUT TRUNCATED AT 1000 LINES ***
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