# # 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. # # $FreeBSD$ # # # 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 afexists inet && ipv4_up ${ifn} && cfg=0 afexists inet6 && ipv6_up ${ifn} && cfg=0 afexists ipx && ipx_up ${ifn} && cfg=0 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" afexists ipx && ipx_down ${ifn} && cfg=0 afexists inet6 && ipv6_down ${ifn} && cfg=0 afexists inet && ipv4_down ${ifn} && cfg=0 ifconfig_down ${ifn} && cfg=0 ifscript_down ${ifn} && cfg=0 childif_destroy ${ifn} && cfg=0 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 _ipv6_opts ifconfig_args _cfg=1 # Make sure lo0 always comes up. if [ "$1" = "lo0" ]; then _cfg=0 fi # ifconfig_IF ifconfig_args=`ifconfig_getargs $1` if [ -n "${ifconfig_args}" ]; then eval ifconfig $1 ${ifconfig_args} _cfg=0 fi # inet6 specific if afexists inet6; then if checkyesno ipv6_activate_all_interfaces; then _ipv6_opts="-ifdisabled" elif [ "$1" != "lo0" ]; then _ipv6_opts="ifdisabled" fi # backward compatibility: $ipv6_enable case $ipv6_enable in [Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1) _ipv6_opts="${_ipv6_opts} accept_rtadv" ;; esac if [ -n "${_ipv6_opts}" ]; then ifconfig $1 inet6 ${_ipv6_opts} fi # ifconfig_IF_ipv6 ifconfig_args=`ifconfig_getargs $1 ipv6` if [ -n "${ifconfig_args}" ]; then ifconfig $1 inet6 -ifdisabled ifconfig $1 ${ifconfig_args} _cfg=0 fi # backward compatiblity: $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 $1 inet6 -ifdisabled ifconfig $1 inet6 ${ifconfig_args} _cfg=0 fi fi if [ ${_cfg} -eq 0 ]; then ifconfig $1 up fi if wpaif $1; then /etc/rc.d/wpa_supplicant start $1 _cfg=0 # XXX: not sure this should count fi if dhcpif $1; then if [ $_cfg -ne 0 ] ; then ifconfig $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 fi if dhcpif $1; then /etc/rc.d/dhclient stop $1 _cfg=0 fi if ifexists $1; then ifconfig $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=". - / +" for _punct_c in $_punct; do _if=`ltr ${_if} ${_punct_c} '_'` done _var=$2 _default=$3 prefix=${_var%%IF*} suffix=${_var##*IF} eval echo \${${prefix}${_if}${suffix}-${_default}} } # _ifconfig_getargs if [af] # Echos 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 _tmpargs=`_ifconfig_getargs $1 $2` if [ $? -eq 1 ]; then return 1 fi _args= for _arg in $_tmpargs; do case $_arg in [Dd][Hh][Cc][Pp]) ;; [Nn][Oo][Aa][Uu][Tt][Oo]) ;; [Nn][Oo][Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp]) ;; [Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp]) ;; [Ww][Pp][Aa]) ;; *) _args="$_args $_arg" ;; esac done echo $_args } # autoif # Returns 0 if the interface should be automaticly 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` 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` 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 } # 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} ;; ipx) ${SYSCTL_N} net.ipx > /dev/null 2>&1 ;; atm) if [ -x /sbin/atmconfig ]; then /sbin/atmconfig diag list > /dev/null 2>&1 else return 1 fi ;; *) 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]*|\ 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 # 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 lo0|\ stf[0-9]*|\ faith[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) return 0 ;; 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 -n $1 > /dev/null 2>&1 } # 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=`ifconfig_getargs ${_if}` if [ -z "${ifconfig_args}" ]; then ifconfig ${_if} inet 127.0.0.1/8 alias fi fi ifalias_up ${_if} inet && _ret=0 ipv4_addrs_common ${_if} 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_up ${_if} inet6 && _ret=0 ipv6_prefix_hostid_addr_up ${_if} && _ret=0 ipv6_accept_rtadv_up ${_if} && _ret=0 # wait for DAD sleep `${SYSCTL_N} net.inet6.ip6.dad_count` sleep 1 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 inetList="`ifconfig ${_if} | grep 'inet ' | tr "\n" "$_ifs"`" oldifs="$IFS" IFS="$_ifs" for _inet in $inetList ; do # get rid of extraneous line [ -z "$_inet" ] && break _inet=`expr "$_inet" : '.*\(inet \([0-9]\{1,3\}\.\)\{3\}[0-9]\{1,3\}\).*'` IFS="$oldifs" ifconfig ${_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 } # 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 ifalias_down ${_if} inet6 && _ret=0 inetList="`ifconfig ${_if} | grep 'inet6 ' | tr "\n" "$_ifs"`" oldifs="$IFS" IFS="$_ifs" for _inet6 in $inetList ; do # get rid of extraneous line [ -z "$_inet6" ] && break _inet6=`expr "$_inet6" : '.*\(inet6 \([0-9a-f:]*\)\).*'` IFS="$oldifs" ifconfig ${_if} ${_inet6} -alias IFS="$_ifs" _ret=0 done IFS="$oldifs" 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. # It returns 0 if at least one alias was configured or # 1 if there were none. # ifalias_up() { local _ret _ret=1 case "$2" in inet) _ret=`ifalias_ipv4_up "$1"` ;; inet6) _ret=`ifalias_ipv6_up "$1"` ;; esac return $_ret } # ifalias_ipv4_up if # Helper function for ifalias_up(). Handles IPv4. # ifalias_ipv4_up() { 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 ${ifconfig_args} alias && _ret=0 ;; "") break ;; esac alias=$((${alias} + 1)) done return $_ret } # ifalias_ipv6_up if # Helper function for ifalias_up(). Handles IPv6. # ifalias_ipv6_up() { local _ret alias ifconfig_args _ret=1 # 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 ${ifconfig_args} alias && _ret=0 ;; "") break ;; esac alias=$((${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 ;; *) 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 return $_ret } # 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_down() { local _ret _ret=1 case "$2" in inet) _ret=`ifalias_ipv4_down "$1"` ;; inet6) _ret=`ifalias_ipv6_down "$1"` ;; esac return $_ret } # ifalias_ipv4_down if # Helper function for ifalias_down(). Handles IPv4. # ifalias_ipv4_down() { 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 ${ifconfig_args} -alias && _ret=0 ;; "") break ;; esac alias=$((${alias} + 1)) done return $_ret } # ifalias_ipv6_down if # Helper function for ifalias_down(). Handles IPv6. # ifalias_ipv6_down() { local _ret alias ifconfig_args _ret=1 # 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 ${ifconfig_args} -alias && _ret=0 ;; "") break ;; esac alias=$((${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 ;; *) 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 return $_ret } # ipv6_prefix_hostid_addr_up if # add IPv6 prefix + hostid addr to the interface $if ipv6_prefix_hostid_addr_up() { local _if prefix laddr hostid j address _if=$1 prefix=`get_if_var ${_if} ipv6_prefix_IF` if [ -n "${prefix}" ]; then laddr=`network6_getladdr ${_if}` hostid=${laddr#fe80::} hostid=${hostid%\%*} for j in ${prefix}; do address=$j\:${hostid} ifconfig ${_if} inet6 ${address} prefixlen 64 alias # if I am a router, add subnet router # anycast address (RFC 2373). if checkyesno ipv6_gateway_enable; then ifconfig ${_if} inet6 $j:: prefixlen 64 \ alias 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 $1 inet6 accept_rtadv up if ! checkyesno rtsold_enable; then rtsol ${rtsol_flags} $1 fi fi } # ipv6_accept_rtadv_down if # Disable accepting Router Advertisement ipv6_accept_rtadv_down() { if ipv6_autoconfif $1; then ifconfig $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 } # clone_up # Create cloneable interfaces. # clone_up() { local _prefix _list ifn _prefix= _list= # create_args_IF for ifn in ${cloned_interfaces}; do ifconfig ${ifn} create `get_if_var ${ifn} create_args_IF` if [ $? -eq 0 ]; then _list="${_list}${_prefix}${ifn}" [ -z "$_prefix" ] && _prefix=' ' fi done debug "Cloned: ${_list}" } # clone_down # Destroy cloned interfaces. Destroyed interfaces are echoed to # standard output. # clone_down() { local _prefix _list ifn _prefix= _list= for ifn in ${cloned_interfaces}; do ifconfig -n ${ifn} destroy if [ $? -eq 0 ]; then _list="${_list}${_prefix}${ifn}" [ -z "$_prefix" ] && _prefix=' ' fi done 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 child_wlans create_args debug_flags ifn i cfg=1 ifn=$1 # Create wireless interfaces child_wlans=`get_if_var $ifn wlans_IF` for child in ${child_wlans}; do create_args="wlandev $ifn `get_if_var $child create_args_IF`" debug_flags="`get_if_var $child wlandebug_IF`" if expr $child : 'wlan[0-9][0-9]*$' >/dev/null 2>&1; then ifconfig $child create ${create_args} && cfg=0 if [ -n "${debug_flags}" ]; then wlandebug -i $child ${debug_flags} fi else i=`ifconfig wlan create ${create_args}` if [ -n "${debug_flags}" ]; then wlandebug -i $i ${debug_flags} fi ifconfig $i name $child && cfg=0 fi if autoif $child; then ifn_start $child fi done # 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 $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 else i=`ifconfig vlan create ${create_args}` ifconfig $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 child_wlans ifn cfg=1 child_wlans=`get_if_var $ifn wlans_IF` for child in ${child_wlans}; do if ! ifexists $child; then continue fi ifconfig -n $child destroy && cfg=0 done 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 -n $child destroy && cfg=0 done return ${cfg} } # ng_mkpeer # Create netgraph nodes. # ng_mkpeer() { ngctl -f - 2> /dev/null </dev/null 2>&1; then ifconfig $i create >/dev/null 2>&1 else gif=`ifconfig gif create` ifconfig $gif name $i fi ifconfig $i tunnel ${peers} ifconfig $i up ;; esac done } # ng_fec_create ifn # Configure Fast EtherChannel for interface $ifn. Returns 0 if # FEC arguments were found and configured; returns !0 otherwise. ng_fec_create() { local req_iface iface bogus req_iface="$1" ngctl shutdown ${req_iface}: > /dev/null 2>&1 bogus="" while true; do iface=`ng_create_one fec dummy fec` if [ -z "${iface}" ]; then exit 2 fi if [ "${iface}" = "${req_iface}" ]; then break fi bogus="${bogus} ${iface}" done for iface in ${bogus}; do ngctl shutdown ${iface}: done } # fec_up # Create Fast EtherChannel interfaces. fec_up() { local i j for i in ${fec_interfaces}; do ng_fec_create $i for j in `get_if_var $i fecconfig_IF`; do case ${j} in '') continue ;; *) ngctl msg ${i}: add_iface "\"${j}\"" ;; esac done done } # ipx_up ifn # Configure any IPX addresses for interface $ifn. Returns 0 if # IPX arguments were found and configured; returns 1 otherwise. # ipx_up() { local ifn ifn="$1" # ifconfig_IF_ipx ifconfig_args=`_ifconfig_getargs $ifn ipx` if [ -n "${ifconfig_args}" ]; then ifconfig ${ifn} ${ifconfig_args} return 0 fi return 1 } # ipx_down ifn # Remove IPX addresses for interface $ifn. Returns 0 if IPX # addresses were found and unconfigured. It returns 1, otherwise. # ipx_down() { local _if _ifs _ret ipxList oldifs _ipx _if=$1 _ifs="^" _ret=1 ipxList="`ifconfig ${_if} | grep 'ipx ' | tr "\n" "$_ifs"`" oldifs="$IFS" IFS="$_ifs" for _ipx in $ipxList ; do # get rid of extraneous line [ -z "$_ipx" ] && break _ipx=`expr "$_ipx" : '.*\(ipx [0-9a-h]\{1,8\}H*\.[0-9a-h]\{1,12\}\).*'` IFS="$oldifs" ifconfig ${_if} ${_ipx} delete IFS="$_ifs" _ret=0 done IFS="$oldifs" return $_ret } # ifnet_rename # Rename all requested interfaces. # ifnet_rename() { local _if _ifname # ifconfig_IF_name for _if in `ifconfig -l`; do _ifname=`get_if_var $_if ifconfig_IF_name` if [ ! -z "$_ifname" ]; then ifconfig $_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 -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}${_tmplist# }" ;; *) _tmplist="${network_interfaces} ${cloned_interfaces}" # lo0 is effectively mandatory, so help prevent foot-shooting # case "$_tmplist" in lo0|'lo0 '*|*' lo0'|*' lo0 '*) ;; # This is fine, do nothing *) _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 $1 2>/dev/null` in *media:?Ethernet*) media=Ethernet ;; esac test "$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 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 esac done }