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d10526a03b
There are now many configurations which have a NIC on board, and pccard slots. If a dhclient is running on the internal nic, the Improve the handling dhcp handling of pccard_ether. Improve the dhcp handling of pccard_ether. There are now many configurations which have a NIC on board and Improve the dhcp handling of pccard_ether. There are now many configurations which have a NIC on board and cardbus slots too. If a dhclient was already running on the internal NIC, the user was forced to kill a running dhclient manually. If now a pccard is included at startup time, /etc/rc.d/dhclient start does include it into the startup list for dhcp devices. That means you can now do dhcp on the internal and the pccard devices at the same time. If the card is plugged in later, a running dhclient (working for the internal interface only) is killed, and restarted, but the interface name of the new pccard is added to the internal name. After removal, /etc/rc.d/dhclient is started again. This script does nothing if there are no devices in /etc/rc.conf This is only a workaround for a well known problem. After we have a dhcp client which handles device adding and removal, it will go away.
626 lines
13 KiB
Plaintext
626 lines
13 KiB
Plaintext
#
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# Copyright (c) 2003 The FreeBSD Project. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# $FreeBSD$
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#
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#
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# Subroutines commonly used from network startup scripts.
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# Requires that rc.conf be loaded first.
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#
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# ifconfig_up if
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# Evaluate ifconfig(8) arguments for interface $if and
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# run ifconfig(8) with those arguments. It returns 0 if
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# arguments were found and executed or 1 if the interface
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# had no arguments.
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#
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ifconfig_up()
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{
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eval ifconfig_args=\$ifconfig_$1
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if [ -n "${ifconfig_args}" ]; then
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ifconfig $1 ${ifconfig_args}
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return 0
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fi
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return 1
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}
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# ifconfig_down if
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# Remove all inet entries from the $if interface. It returns
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# 0 if inet entries were found and removed. It returns 1 if
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# no entries were found or they could not be removed.
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#
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ifconfig_down()
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{
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[ -z "$1" ] && return 1
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_ifs="^"
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_ret=1
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inetList="`ifconfig $1 | grep 'inet ' | tr "\n" "$_ifs"`"
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oldifs="$IFS"
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IFS="$_ifs"
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for _inet in $inetList ; do
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# get rid of extraneous line
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[ -z "$_inet" ] && break
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_inet=`expr "$_inet" : '.*\(inet \([0-9]\{1,3\}\.\)\{3\}[0-9]\{1,3\}\).*'`
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IFS="$oldifs"
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ifconfig $1 ${_inet} delete
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IFS="$_ifs"
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_ret=0
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done
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IFS="$oldifs"
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return $_ret
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}
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# ifalias_up if
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# Configure aliases for network interface $if.
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# It returns 0 if at least one alias was configured or
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# 1 if there were none.
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#
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ifalias_up()
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{
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_ret=1
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alias=0
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while : ; do
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eval ifconfig_args=\$ifconfig_$1_alias${alias}
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if [ -n "${ifconfig_args}" ]; then
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ifconfig $1 ${ifconfig_args} alias
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alias=$((${alias} + 1))
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_ret=0
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else
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break
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fi
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done
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return $_ret
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}
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#ifalias_down if
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# Remove aliases for network interface $if.
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# It returns 0 if at least one alias was removed or
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# 1 if there were none.
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#
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ifalias_down()
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{
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_ret=1
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alias=0
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while : ; do
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eval ifconfig_args=\$ifconfig_$1_alias${alias}
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if [ -n "${ifconfig_args}" ]; then
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ifconfig $1 ${ifconfig_args} -alias
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alias=$((${alias} + 1))
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_ret=0
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else
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break
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fi
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done
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return $_ret
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}
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# ifscript_up if
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# Evaluate a startup script for the $if interface.
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# It returns 0 if a script was found and processed or
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# 1 if no script was found.
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#
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ifscript_up()
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{
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if [ -r /etc/start_if.$1 ]; then
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. /etc/start_if.$1
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return 0
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fi
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return 1
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}
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# ifscript_down if
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# Evaluate a shutdown script for the $if interface.
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# It returns 0 if a script was found and processed or
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# 1 if no script was found.
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#
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ifscript_down()
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{
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if [ -r /etc/stop_if.$1 ]; then
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. /etc/stop_if.$1
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return 0
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fi
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return 1
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}
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# Create cloneable interfaces.
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#
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clone_up()
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{
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_prefix=
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_list=
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for ifn in ${cloned_interfaces}; do
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ifconfig ${ifn} create
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if [ $? -eq 0 ]; then
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_list="${_list}${_prefix}${ifn}"
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[ -z "$_prefix" ] && _prefix=' '
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fi
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done
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debug "Cloned: ${_list}"
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}
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# Destroy cloned interfaces. Destroyed interfaces are echoed
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# to standard output.
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#
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clone_down()
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{
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_prefix=
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_list=
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for ifn in ${cloned_interfaces}; do
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ifconfig ${ifn} destroy
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if [ $? -eq 0 ]; then
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_list="${_list}${_prefix}${ifn}"
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[ -z "$_prefix" ] && _prefix=' '
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fi
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done
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debug "Destroyed clones: ${_list}"
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}
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gif_up() {
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case ${gif_interfaces} in
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[Nn][Oo] | '')
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;;
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*)
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for i in ${gif_interfaces}; do
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eval peers=\$gifconfig_$i
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case ${peers} in
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'')
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continue
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;;
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*)
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ifconfig $i create >/dev/null 2>&1
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ifconfig $i tunnel ${peers}
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ifconfig $i up
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;;
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esac
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done
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;;
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esac
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}
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#
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# ipx_up ifn
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# Configure any IPX addresses for interface $ifn. Returns 0 if IPX
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# arguments were found and configured; returns 1 otherwise.
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#
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ipx_up()
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{
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ifn="$1"
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eval ifconfig_args=\$ifconfig_${ifn}_ipx
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if [ -n "${ifconfig_args}" ]; then
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ifconfig ${ifn} ${ifconfig_args}
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return 0
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fi
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return 1
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}
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# ipx_down ifn
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# Remove IPX addresses for interface $ifn. Returns 0 if IPX
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# addresses were found and unconfigured. It returns 1, otherwise.
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#
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ipx_down()
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{
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[ -z "$1" ] && return 1
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_ifs="^"
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_ret=1
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ipxList="`ifconfig $1 | grep 'ipx ' | tr "\n" "$_ifs"`"
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oldifs="$IFS"
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IFS="$_ifs"
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for _ipx in $ipxList ; do
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# get rid of extraneous line
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[ -z "$_ipx" ] && break
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_ipx=`expr "$_ipx" : '.*\(ipx [0-9a-h]\{1,8\}H*\.[0-9a-h]\{1,12\}\).*'`
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IFS="$oldifs"
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ifconfig $1 ${_ipx} delete
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IFS="$_ifs"
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_ret=0
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done
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IFS="$oldifs"
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return $_ret
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}
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#
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# list_net_interfaces type
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# List all network interfaces. The type of interface returned
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# can be controlled by the type argument. The type
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# argument can be any of the following:
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# nodhcp - all interfaces, excluding DHCP configured interfaces
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# dhcp - list only DHCP configured interfaces
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# If no argument is specified all network interfaces are output.
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# Note that the list always includes cloned interfaces.
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#
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list_net_interfaces()
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{
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type=$1
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# Get a list of ALL the interfaces
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#
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case ${network_interfaces} in
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[Aa][Uu][Tt][Oo])
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_tmplist="`ifconfig -l`"
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;;
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*)
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_tmplist="${network_interfaces}"
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;;
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esac
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_tmplist="${_tmplist} ${cloned_interfaces}"
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if [ -z "$type" ]; then
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echo $_tmplist
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return 0
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fi
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# Separate out dhcp and non-dhcp intefraces
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#
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_aprefix=
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_brefix=
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for _if in ${_tmplist} ; do
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eval _ifarg="\$ifconfig_${_if}"
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case "$_ifarg" in
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[Dd][Hh][Cc][Pp])
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_dhcplist="${_dhcplist}${_aprefix}${_if}"
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[ -z "$_aprefix" ] && _aprefix=' '
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;;
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''|*)
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_nodhcplist="${_nodhcplist}${_bprefix}${_if}"
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[ -z "$_bprefix" ] && _bprefix=' '
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;;
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esac
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done
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case ${pccard_ifconfig} in
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[Dd][Hh][Cc][Pp])
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for _if in ${removable_interfaces} ; do
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_test_if=`ifconfig ${_if} 2>&1`
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case "$_test_if" in
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"ifconfig: interface $_if does not exist")
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;;
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*)
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_dhcplist="${_dhcplist}${_aprefix}${_if}"
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[ -z "$_aprefix" ] && _aprefix=' '
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;;
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esac
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done
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;;
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*)
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;;
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esac
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case "$type" in
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nodhcp)
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echo $_nodhcplist
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;;
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dhcp)
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echo $_dhcplist
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;;
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esac
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return 0
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}
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hexdigit()
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{
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if [ $1 -lt 10 ]; then
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echo $1
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else
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case $1 in
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10) echo a ;;
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11) echo b ;;
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12) echo c ;;
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13) echo d ;;
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14) echo e ;;
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15) echo f ;;
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esac
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fi
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}
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hexprint()
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{
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val=$1
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str=''
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dig=`hexdigit $((${val} & 15))`
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str=${dig}${str}
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val=$((${val} >> 4))
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while [ ${val} -gt 0 ]; do
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dig=`hexdigit $((${val} & 15))`
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str=${dig}${str}
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val=$((${val} >> 4))
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done
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echo ${str}
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}
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# Setup the interfaces for IPv6
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network6_interface_setup()
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{
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interfaces=$*
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rtsol_interfaces=''
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case ${ipv6_gateway_enable} in
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[Yy][Ee][Ss])
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rtsol_available=no
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;;
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*)
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rtsol_available=yes
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;;
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esac
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for i in $interfaces; do
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rtsol_interface=yes
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eval prefix=\$ipv6_prefix_$i
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if [ -n "${prefix}" ]; then
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rtsol_available=no
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rtsol_interface=no
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laddr=`network6_getladdr $i`
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hostid=`expr "${laddr}" : 'fe80::\(.*\)%\(.*\)'`
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for j in ${prefix}; do
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address=$j\:${hostid}
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ifconfig $i inet6 ${address} prefixlen 64 alias
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case ${ipv6_gateway_enable} in
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[Yy][Ee][Ss])
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# subnet-router anycast address
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# (rfc2373)
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ifconfig $i inet6 $j:: prefixlen 64 \
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alias anycast
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;;
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esac
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done
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fi
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eval ipv6_ifconfig=\$ipv6_ifconfig_$i
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if [ -n "${ipv6_ifconfig}" ]; then
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rtsol_available=no
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rtsol_interface=no
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ifconfig $i inet6 ${ipv6_ifconfig} alias
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fi
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if [ ${rtsol_available} = yes -a ${rtsol_interface} = yes ]
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then
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case ${i} in
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lo0|gif[0-9]*|stf[0-9]*|faith[0-9]*|lp[0-9]*|sl[0-9]*|tun[0-9]*)
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;;
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*)
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rtsol_interfaces="${rtsol_interfaces} ${i}"
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;;
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esac
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else
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ifconfig $i inet6
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fi
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done
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if [ ${rtsol_available} = yes -a -n "${rtsol_interfaces}" ]; then
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# Act as endhost - automatically configured.
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# You can configure only single interface, as
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# specification assumes that autoconfigured host has
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# single interface only.
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sysctl net.inet6.ip6.accept_rtadv=1
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set ${rtsol_interfaces}
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ifconfig $1 up
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rtsol ${rtsol_flags} $1
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fi
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for i in $interfaces; do
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alias=0
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while : ; do
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eval ipv6_ifconfig=\$ipv6_ifconfig_${i}_alias${alias}
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if [ -z "${ipv6_ifconfig}" ]; then
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break;
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fi
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ifconfig $i inet6 ${ipv6_ifconfig} alias
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alias=$((${alias} + 1))
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done
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done
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}
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# Setup IPv6 to IPv4 mapping
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network6_stf_setup()
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{
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case ${stf_interface_ipv4addr} in
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[Nn][Oo] | '')
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;;
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*)
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# assign IPv6 addr and interface route for 6to4 interface
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stf_prefixlen=$((16+${stf_interface_ipv4plen:-0}))
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OIFS="$IFS"
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IFS=".$IFS"
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set ${stf_interface_ipv4addr}
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IFS="$OIFS"
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hexfrag1=`hexprint $(($1*256 + $2))`
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hexfrag2=`hexprint $(($3*256 + $4))`
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ipv4_in_hexformat="${hexfrag1}:${hexfrag2}"
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case ${stf_interface_ipv6_ifid} in
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[Aa][Uu][Tt][Oo] | '')
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for i in ${ipv6_network_interfaces}; do
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laddr=`network6_getladdr ${i}`
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case ${laddr} in
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'')
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;;
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*)
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break
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;;
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esac
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done
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stf_interface_ipv6_ifid=`expr "${laddr}" : \
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'fe80::\(.*\)%\(.*\)'`
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case ${stf_interface_ipv6_ifid} in
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'')
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stf_interface_ipv6_ifid=0:0:0:1
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;;
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esac
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;;
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esac
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ifconfig stf0 create >/dev/null 2>&1
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ifconfig stf0 inet6 2002:${ipv4_in_hexformat}:${stf_interface_ipv6_slaid:-0}:${stf_interface_ipv6_ifid} \
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prefixlen ${stf_prefixlen}
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# disallow packets to malicious 6to4 prefix
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route add -inet6 2002:e000:: -prefixlen 20 ::1 -reject
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route add -inet6 2002:7f00:: -prefixlen 24 ::1 -reject
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route add -inet6 2002:0000:: -prefixlen 24 ::1 -reject
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route add -inet6 2002:ff00:: -prefixlen 24 ::1 -reject
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;;
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esac
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}
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# Setup static routes
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network6_static_routes_setup()
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{
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# Set up any static routes.
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case ${ipv6_defaultrouter} in
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[Nn][Oo] | '')
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;;
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*)
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ipv6_static_routes="default ${ipv6_static_routes}"
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ipv6_route_default="default ${ipv6_defaultrouter}"
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;;
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esac
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case ${ipv6_static_routes} in
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[Nn][Oo] | '')
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;;
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*)
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for i in ${ipv6_static_routes}; do
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eval ipv6_route_args=\$ipv6_route_${i}
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route add -inet6 ${ipv6_route_args}
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done
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;;
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esac
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}
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# Setup faith
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network6_faith_setup()
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{
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case ${ipv6_faith_prefix} in
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[Nn][Oo] | '')
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;;
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*)
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sysctl net.inet6.ip6.keepfaith=1
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ifconfig faith0 create >/dev/null 2>&1
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ifconfig faith0 up
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for prefix in ${ipv6_faith_prefix}; do
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prefixlen=`expr "${prefix}" : ".*/\(.*\)"`
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case ${prefixlen} in
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'')
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prefixlen=96
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;;
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*)
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prefix=`expr "${prefix}" : \
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"\(.*\)/${prefixlen}"`
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;;
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esac
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route add -inet6 ${prefix} -prefixlen ${prefixlen} ::1
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route change -inet6 ${prefix} -prefixlen ${prefixlen} \
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-ifp faith0
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done
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;;
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esac
|
|
}
|
|
|
|
# Install the "default interface" to kernel, which will be used
|
|
# as the default route when there's no router.
|
|
network6_default_interface_setup()
|
|
{
|
|
# Choose IPv6 default interface if it is not clearly specified.
|
|
case ${ipv6_default_interface} in
|
|
'')
|
|
for i in ${ipv6_network_interfaces}; do
|
|
case $i in
|
|
lo0|faith[0-9]*)
|
|
continue
|
|
;;
|
|
esac
|
|
laddr=`network6_getladdr $i exclude_tentative`
|
|
case ${laddr} in
|
|
'')
|
|
;;
|
|
*)
|
|
ipv6_default_interface=$i
|
|
break
|
|
;;
|
|
esac
|
|
done
|
|
;;
|
|
esac
|
|
|
|
# Disallow unicast packets without outgoing scope identifiers,
|
|
# or route such packets to a "default" interface, if it is specified.
|
|
route add -inet6 fe80:: -prefixlen 10 ::1 -reject
|
|
case ${ipv6_default_interface} in
|
|
[Nn][Oo] | '')
|
|
route add -inet6 ff02:: -prefixlen 16 ::1 -reject
|
|
;;
|
|
*)
|
|
laddr=`network6_getladdr ${ipv6_default_interface}`
|
|
route add -inet6 ff02:: ${laddr} -prefixlen 16 -interface \
|
|
-cloning
|
|
|
|
# Disable installing the default interface with the
|
|
# case net.inet6.ip6.forwarding=0 and
|
|
# net.inet6.ip6.accept_rtadv=0, due to avoid conflict
|
|
# between the default router list and the manual
|
|
# configured default route.
|
|
case ${ipv6_gateway_enable} in
|
|
[Yy][Ee][Ss])
|
|
;;
|
|
*)
|
|
if [ `sysctl -n net.inet6.ip6.accept_rtadv` -eq 1 ]
|
|
then
|
|
ndp -I ${ipv6_default_interface}
|
|
fi
|
|
;;
|
|
esac
|
|
;;
|
|
esac
|
|
}
|
|
|
|
network6_getladdr()
|
|
{
|
|
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
|
|
}
|