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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