cc084f7587
very specific scenarios, and now that we have had net.inet.tcp.blackhole for quite some time there is really no reason to use it any more. (second of three commits)
770 lines
17 KiB
Bash
770 lines
17 KiB
Bash
#!/bin/sh -
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#
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# Copyright (c) 1993 The FreeBSD Project
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# 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 AUTHOR 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 AUTHOR 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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# From: @(#)netstart 5.9 (Berkeley) 3/30/91
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#
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# Note that almost all of the user-configurable behavior is no longer in
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# this file, but rather in /etc/defaults/rc.conf. Please check that file
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# first before contemplating any changes here. If you do need to change
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# this file for some reason, we would like to know about it.
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# First pass startup stuff.
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#
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network_pass1() {
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echo -n 'Doing initial network setup:'
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# Convert host.conf to nsswitch.conf if necessary
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if [ -f "/etc/host.conf" ]; then
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echo ''
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echo 'Warning: /etc/host.conf is no longer used'
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if [ -f "/etc/nsswitch.conf" ]; then
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echo ' /etc/nsswitch.conf will be used instead'
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else
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echo ' /etc/nsswitch.conf will be created for you'
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convert_host_conf /etc/host.conf /etc/nsswitch.conf
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fi
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fi
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# Set the host name if it is not already set
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#
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if [ -z "`hostname -s`" ]; then
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hostname ${hostname}
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echo -n ' hostname'
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fi
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# Establish ipfilter ruleset as early as possible (best in
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# addition to IPFILTER_DEFAULT_BLOCK in the kernel config file)
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#
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case "${ipfilter_enable}" in
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[Yy][Ee][Ss])
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if [ -r "${ipfilter_rules}" ]; then
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echo -n ' ipfilter';
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${ipfilter_program:-/sbin/ipf -Fa -f} \
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"${ipfilter_rules}" ${ipfilter_flags}
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case "${ipmon_enable}" in
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[Yy][Ee][Ss])
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echo -n ' ipmon'
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${ipmon_program:-/sbin/ipmon} ${ipmon_flags}
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;;
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esac
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case "${ipnat_enable}" in
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[Yy][Ee][Ss])
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if [ -r "${ipnat_rules}" ]; then
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echo -n ' ipnat';
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eval ${ipnat_program:-/sbin/ipnat -CF -f} \
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"${ipnat_rules}" ${ipnat_flags}
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else
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echo -n ' NO IPNAT RULES'
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fi
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;;
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esac
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else
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ipfilter_enable="NO"
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echo -n ' NO IPF RULES'
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fi
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;;
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esac
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# Set the domainname if we're using NIS
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#
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case ${nisdomainname} in
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[Nn][Oo] | '')
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;;
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*)
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domainname ${nisdomainname}
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echo -n ' domain'
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;;
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esac
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echo '.'
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# Initial ATM interface configuration
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#
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case ${atm_enable} in
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[Yy][Ee][Ss])
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if [ -r /etc/rc.atm ]; then
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. /etc/rc.atm
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atm_pass1
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fi
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;;
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esac
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# Special options for sppp(4) interfaces go here. These need
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# to go _before_ the general ifconfig section, since in the case
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# of hardwired (no link1 flag) but required authentication, you
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# cannot pass auth parameters down to the already running interface.
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#
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for ifn in ${sppp_interfaces}; do
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eval spppcontrol_args=\$spppconfig_${ifn}
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if [ -n "${spppcontrol_args}" ]; then
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# The auth secrets might contain spaces; in order
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# to retain the quotation, we need to eval them
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# here.
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eval spppcontrol ${ifn} ${spppcontrol_args}
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fi
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done
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# Set up all the network interfaces, calling startup scripts if needed
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#
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case ${network_interfaces} in
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[Aa][Uu][Tt][Oo])
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network_interfaces="`ifconfig -l`"
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;;
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esac
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dhcp_interfaces=""
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for ifn in ${network_interfaces}; do
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if [ -r /etc/start_if.${ifn} ]; then
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. /etc/start_if.${ifn}
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eval showstat_$ifn=1
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fi
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# Do the primary ifconfig if specified
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#
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eval ifconfig_args=\$ifconfig_${ifn}
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case ${ifconfig_args} in
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'')
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;;
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[Dd][Hh][Cc][Pp])
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# DHCP inits are done all in one go below
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dhcp_interfaces="$dhcp_interfaces $ifn"
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eval showstat_$ifn=1
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;;
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*)
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ifconfig ${ifn} ${ifconfig_args}
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eval showstat_$ifn=1
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;;
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esac
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done
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if [ ! -z "${dhcp_interfaces}" ]; then
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${dhcp_program:-/sbin/dhclient} ${dhcp_flags} ${dhcp_interfaces}
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fi
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for ifn in ${network_interfaces}; do
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# Check to see if aliases need to be added
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#
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alias=0
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while : ; do
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eval ifconfig_args=\$ifconfig_${ifn}_alias${alias}
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if [ -n "${ifconfig_args}" ]; then
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ifconfig ${ifn} ${ifconfig_args} alias
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eval showstat_$ifn=1
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alias=`expr ${alias} + 1`
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else
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break;
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fi
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done
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# Do ipx address if specified
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#
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eval ifconfig_args=\$ifconfig_${ifn}_ipx
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if [ -n "${ifconfig_args}" ]; then
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ifconfig ${ifn} ${ifconfig_args}
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eval showstat_$ifn=1
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fi
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done
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for ifn in ${network_interfaces}; do
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eval showstat=\$showstat_${ifn}
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if [ ! -z ${showstat} ]; then
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ifconfig ${ifn}
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fi
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done
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# ISDN subsystem startup
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#
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case ${isdn_enable} in
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[Yy][Ee][Ss])
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if [ -r /etc/rc.isdn ]; then
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. /etc/rc.isdn
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fi
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;;
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esac
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# Start user ppp if required. This must happen before natd.
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#
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case ${ppp_enable} in
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[Yy][Ee][Ss])
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# Establish ppp mode.
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#
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if [ "${ppp_mode}" != "ddial" -a "${ppp_mode}" != "direct" \
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-a "${ppp_mode}" != "dedicated" \
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-a "${ppp_mode}" != "background" ]; then
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ppp_mode="auto"
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fi
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ppp_command="/usr/sbin/ppp -quiet -${ppp_mode}"
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# Switch on NAT mode?
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#
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case ${ppp_nat} in
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[Yy][Ee][Ss])
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ppp_command="${ppp_command} -nat"
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;;
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esac
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ppp_command="${ppp_command} ${ppp_profile}"
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echo -n "Starting ppp as \"${ppp_user}\""
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su -m ${ppp_user} -c "exec ${ppp_command}"
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;;
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esac
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# Initialize IP filtering using ipfw
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#
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if /sbin/ipfw -q flush > /dev/null 2>&1; then
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firewall_in_kernel=1
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else
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firewall_in_kernel=0
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fi
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case ${firewall_enable} in
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[Yy][Ee][Ss])
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if [ "${firewall_in_kernel}" -eq 0 ] && kldload ipfw; then
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firewall_in_kernel=1
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echo 'Kernel firewall module loaded'
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elif [ "${firewall_in_kernel}" -eq 0 ]; then
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echo 'Warning: firewall kernel module failed to load'
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fi
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;;
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esac
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# Load the filters if required
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#
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case ${firewall_in_kernel} in
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1)
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if [ -z "${firewall_script}" ]; then
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firewall_script=/etc/rc.firewall
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fi
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case ${firewall_enable} in
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[Yy][Ee][Ss])
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if [ -r "${firewall_script}" ]; then
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. "${firewall_script}"
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echo -n 'Firewall rules loaded, starting divert daemons:'
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# Network Address Translation daemon
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#
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case ${natd_enable} in
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[Yy][Ee][Ss])
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if [ -n "${natd_interface}" ]; then
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if echo ${natd_interface} | \
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grep -q -E '^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+$'; then
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natd_ifarg="-a ${natd_interface}"
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else
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natd_ifarg="-n ${natd_interface}"
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fi
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echo -n ' natd'; ${natd_program:-/sbin/natd} ${natd_flags} ${natd_ifarg}
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fi
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;;
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esac
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echo '.'
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elif [ "`ipfw l 65535`" = "65535 deny ip from any to any" ]; then
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echo 'Warning: kernel has firewall functionality,' \
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'but firewall rules are not enabled.'
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echo ' All ip services are disabled.'
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fi
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case ${firewall_logging} in
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[Yy][Ee][Ss] | '')
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echo 'Firewall logging=YES'
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sysctl -w net.inet.ip.fw.verbose=1 >/dev/null
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;;
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*)
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;;
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esac
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;;
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esac
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;;
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esac
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# Additional ATM interface configuration
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#
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if [ -n "${atm_pass1_done}" ]; then
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atm_pass2
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fi
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# Configure routing
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#
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case ${defaultrouter} in
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[Nn][Oo] | '')
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;;
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*)
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static_routes="default ${static_routes}"
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route_default="default ${defaultrouter}"
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;;
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esac
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# Set up any static routes. This should be done before router discovery.
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#
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if [ -n "${static_routes}" ]; then
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for i in ${static_routes}; do
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eval route_args=\$route_${i}
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route add ${route_args}
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done
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fi
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echo -n 'Additional routing options:'
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case ${tcp_extensions} in
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[Yy][Ee][Ss] | '')
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;;
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*)
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echo -n ' tcp extensions=NO'
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sysctl -w net.inet.tcp.rfc1323=0 >/dev/null
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;;
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esac
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case ${icmp_bmcastecho} in
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[Yy][Ee][Ss])
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echo -n ' broadcast ping responses=YES'
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sysctl -w net.inet.icmp.bmcastecho=1 >/dev/null
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;;
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esac
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case ${icmp_drop_redirect} in
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[Yy][Ee][Ss])
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echo -n ' ignore ICMP redirect=YES'
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sysctl -w net.inet.icmp.drop_redirect=1 >/dev/null
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;;
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esac
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case ${icmp_log_redirect} in
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[Yy][Ee][Ss])
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echo -n ' log ICMP redirect=YES'
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sysctl -w net.inet.icmp.log_redirect=1 >/dev/null
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;;
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esac
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case ${gateway_enable} in
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[Yy][Ee][Ss])
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echo -n ' IP gateway=YES'
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sysctl -w net.inet.ip.forwarding=1 >/dev/null
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;;
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esac
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case ${forward_sourceroute} in
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[Yy][Ee][Ss])
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echo -n ' do source routing=YES'
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sysctl -w net.inet.ip.sourceroute=1 >/dev/null
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;;
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esac
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case ${accept_sourceroute} in
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[Yy][Ee][Ss])
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echo -n ' accept source routing=YES'
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sysctl -w net.inet.ip.accept_sourceroute=1 >/dev/null
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;;
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esac
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case ${tcp_keepalive} in
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[Yy][Ee][Ss])
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echo -n ' TCP keepalive=YES'
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sysctl -w net.inet.tcp.always_keepalive=1 >/dev/null
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;;
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esac
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case ${tcp_drop_synfin} in
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[Yy][Ee][Ss])
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echo -n ' drop SYN+FIN packets=YES'
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sysctl -w net.inet.tcp.drop_synfin=1 >/dev/null
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;;
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esac
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case ${ipxgateway_enable} in
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[Yy][Ee][Ss])
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echo -n ' IPX gateway=YES'
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sysctl -w net.ipx.ipx.ipxforwarding=1 >/dev/null
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;;
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esac
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case ${arpproxy_all} in
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[Yy][Ee][Ss])
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echo -n ' ARP proxyall=YES'
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sysctl -w net.link.ether.inet.proxyall=1 >/dev/null
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;;
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esac
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case ${ip_portrange_first} in
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[Nn][Oo] | '')
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;;
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*)
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echo -n " ip_portrange_first=$ip_portrange_first"
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sysctl -w net.inet.ip.portrange.first=$ip_portrange_first >/dev/null
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;;
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esac
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case ${ip_portrange_last} in
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[Nn][Oo] | '')
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;;
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*)
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echo -n " ip_portrange_last=$ip_portrange_last"
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sysctl -w net.inet.ip.portrange.last=$ip_portrange_last >/dev/null
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;;
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esac
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echo '.'
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case ${ipsec_enable} in
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[Yy][Ee][Ss])
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if [ -f ${ipsec_file} ]; then
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echo ' ipsec: enabled'
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setkey -f ${ipsec_file}
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else
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echo ' ipsec: file not found'
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fi
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;;
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esac
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echo -n 'Routing daemons:'
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case ${router_enable} in
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[Yy][Ee][Ss])
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echo -n " ${router}"; ${router} ${router_flags}
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;;
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esac
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case ${ipxrouted_enable} in
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[Yy][Ee][Ss])
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echo -n ' IPXrouted'
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IPXrouted ${ipxrouted_flags} > /dev/null 2>&1
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;;
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esac
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case ${mrouted_enable} in
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[Yy][Ee][Ss])
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echo -n ' mrouted'; mrouted ${mrouted_flags}
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;;
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esac
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case ${rarpd_enable} in
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[Yy][Ee][Ss])
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echo -n ' rarpd'; rarpd ${rarpd_flags}
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;;
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esac
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echo '.'
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# Let future generations know we made it.
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#
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network_pass1_done=YES
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}
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network_pass2() {
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echo -n 'Doing additional network setup:'
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case ${named_enable} in
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[Yy][Ee][Ss])
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echo -n ' named'; ${named_program:-named} ${named_flags}
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;;
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esac
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case ${ntpdate_enable} in
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[Yy][Ee][Ss])
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echo -n ' ntpdate'
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${ntpdate_program:-ntpdate} ${ntpdate_flags} >/dev/null 2>&1
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;;
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esac
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case ${xntpd_enable} in
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[Yy][Ee][Ss])
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echo -n ' ntpd'; ${xntpd_program:-ntpd} ${xntpd_flags}
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;;
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esac
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case ${timed_enable} in
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[Yy][Ee][Ss])
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echo -n ' timed'; timed ${timed_flags}
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;;
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esac
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case ${portmap_enable} in
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[Yy][Ee][Ss])
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echo -n ' rpcbind'; ${portmap_program:-/usr/sbin/rpcbind} \
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${portmap_flags}
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# Start ypserv if we're an NIS server.
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# Run rpc.ypxfrd and rpc.yppasswdd only on the NIS master server.
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#
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case ${nis_server_enable} in
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[Yy][Ee][Ss])
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echo -n ' ypserv'; ypserv ${nis_server_flags}
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case ${nis_ypxfrd_enable} in
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[Yy][Ee][Ss])
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echo -n ' rpc.ypxfrd'
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rpc.ypxfrd ${nis_ypxfrd_flags}
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;;
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esac
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case ${nis_yppasswdd_enable} in
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[Yy][Ee][Ss])
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echo -n ' rpc.yppasswdd'
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rpc.yppasswdd ${nis_yppasswdd_flags}
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;;
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esac
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;;
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esac
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# Start ypbind if we're an NIS client
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#
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case ${nis_client_enable} in
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[Yy][Ee][Ss])
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echo -n ' ypbind'; ypbind ${nis_client_flags}
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case ${nis_ypset_enable} in
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[Yy][Ee][Ss])
|
|
echo -n ' ypset'; ypset ${nis_ypset_flags}
|
|
;;
|
|
esac
|
|
;;
|
|
esac
|
|
|
|
# Start keyserv if we are running Secure RPC
|
|
#
|
|
case ${keyserv_enable} in
|
|
[Yy][Ee][Ss])
|
|
echo -n ' keyserv'; keyserv ${keyserv_flags}
|
|
;;
|
|
esac
|
|
|
|
# Start ypupdated if we are running Secure RPC
|
|
# and we are NIS master
|
|
#
|
|
case ${rpc_ypupdated_enable} in
|
|
[Yy][Ee][Ss])
|
|
echo -n ' rpc.ypupdated'; rpc.ypupdated
|
|
;;
|
|
esac
|
|
;;
|
|
esac
|
|
|
|
# Start ATM daemons
|
|
if [ -n "${atm_pass2_done}" ]; then
|
|
atm_pass3
|
|
fi
|
|
|
|
echo '.'
|
|
network_pass2_done=YES
|
|
}
|
|
|
|
network_pass3() {
|
|
echo -n 'Starting final network daemons:'
|
|
|
|
case ${portmap_enable} in
|
|
[Yy][Ee][Ss])
|
|
case ${nfs_server_enable} in
|
|
[Yy][Ee][Ss])
|
|
if [ -r /etc/exports ]; then
|
|
echo -n ' mountd'
|
|
|
|
case ${weak_mountd_authentication} in
|
|
[Yy][Ee][Ss])
|
|
mountd_flags="${mountd_flags} -n"
|
|
;;
|
|
esac
|
|
|
|
mountd ${mountd_flags}
|
|
|
|
case ${nfs_reserved_port_only} in
|
|
[Yy][Ee][Ss])
|
|
echo -n ' NFS on reserved port only=YES'
|
|
sysctl -w vfs.nfs.nfs_privport=1 > /dev/null
|
|
;;
|
|
esac
|
|
|
|
echo -n ' nfsd'; nfsd ${nfs_server_flags}
|
|
|
|
if [ -n "${nfs_bufpackets}" ]; then
|
|
sysctl -w vfs.nfs.bufpackets=${nfs_bufpackets} > /dev/null
|
|
fi
|
|
|
|
case ${rpc_lockd_enable} in
|
|
[Yy][Ee][Ss])
|
|
echo -n ' rpc.lockd'; rpc.lockd
|
|
;;
|
|
esac
|
|
|
|
case ${rpc_statd_enable} in
|
|
[Yy][Ee][Ss])
|
|
echo -n ' rpc.statd'; rpc.statd
|
|
;;
|
|
esac
|
|
fi
|
|
;;
|
|
*)
|
|
case ${single_mountd_enable} in
|
|
[Yy][Ee][Ss])
|
|
if [ -r /etc/exports ]; then
|
|
echo -n ' mountd'
|
|
|
|
case ${weak_mountd_authentication} in
|
|
[Yy][Ee][Ss])
|
|
mountd_flags="-n"
|
|
;;
|
|
esac
|
|
|
|
mountd ${mountd_flags}
|
|
fi
|
|
;;
|
|
esac
|
|
;;
|
|
esac
|
|
|
|
case ${nfs_client_enable} in
|
|
[Yy][Ee][Ss])
|
|
echo -n ' nfsiod'; nfsiod ${nfs_client_flags}
|
|
if [ -n "${nfs_access_cache}" ]; then
|
|
echo -n " NFS access cache time=${nfs_access_cache}"
|
|
sysctl -w vfs.nfs.access_cache_timeout=${nfs_access_cache} >/dev/null
|
|
fi
|
|
;;
|
|
esac
|
|
|
|
# If /var/db/mounttab exists, some nfs-server has not been
|
|
# sucessfully notified about a previous client shutdown.
|
|
# If there is no /var/db/mounttab, we do nothing.
|
|
if [ -f /var/db/mounttab ]; then
|
|
rpc.umntall -k
|
|
fi
|
|
|
|
case ${amd_enable} in
|
|
[Yy][Ee][Ss])
|
|
echo -n ' amd'
|
|
case ${amd_map_program} in
|
|
[Nn][Oo] | '')
|
|
;;
|
|
*)
|
|
amd_flags="${amd_flags} `eval\
|
|
${amd_map_program}`"
|
|
;;
|
|
esac
|
|
|
|
if [ -n "${amd_flags}" ]; then
|
|
amd -p ${amd_flags}\
|
|
> /var/run/amd.pid 2> /dev/null
|
|
else
|
|
amd 2> /dev/null
|
|
fi
|
|
;;
|
|
esac
|
|
;;
|
|
esac
|
|
|
|
case ${rwhod_enable} in
|
|
[Yy][Ee][Ss])
|
|
echo -n ' rwhod'; rwhod ${rwhod_flags}
|
|
;;
|
|
esac
|
|
|
|
# Kerberos runs ONLY on the Kerberos server machine
|
|
case ${kerberos_server_enable} in
|
|
[Yy][Ee][Ss])
|
|
case ${kerberos_stash} in
|
|
[Yy][Ee][Ss])
|
|
stash_flag=-n
|
|
;;
|
|
*)
|
|
stash_flag=
|
|
;;
|
|
esac
|
|
|
|
echo -n ' kerberos'
|
|
kerberos ${stash_flag} >> /var/log/kerberos.log &
|
|
|
|
case ${kadmind_server_enable} in
|
|
[Yy][Ee][Ss])
|
|
echo -n ' kadmind'
|
|
(sleep 20; kadmind ${stash_flag} >/dev/null 2>&1 &) &
|
|
;;
|
|
esac
|
|
unset stash_flag
|
|
;;
|
|
esac
|
|
|
|
case ${pppoed_enable} in
|
|
[Yy][Ee][Ss])
|
|
if [ -n "${pppoed_provider}" ]; then
|
|
pppoed_flags="${pppoed_flags} -p ${pppoed_provider}"
|
|
fi
|
|
echo -n ' pppoed';
|
|
/usr/libexec/pppoed ${pppoed_flags} ${pppoed_interface}
|
|
;;
|
|
esac
|
|
|
|
case ${sshd_enable} in
|
|
[Yy][Ee][Ss])
|
|
if [ ! -f /etc/ssh/ssh_host_key ]; then
|
|
echo ' creating ssh RSA host key';
|
|
/usr/bin/ssh-keygen -N "" -f /etc/ssh/ssh_host_key
|
|
fi
|
|
if [ ! -f /etc/ssh/ssh_host_dsa_key ]; then
|
|
echo ' creating ssh DSA host key';
|
|
/usr/bin/ssh-keygen -d -N "" -f /etc/ssh/ssh_host_dsa_key
|
|
fi
|
|
;;
|
|
esac
|
|
|
|
echo '.'
|
|
network_pass3_done=YES
|
|
}
|
|
|
|
network_pass4() {
|
|
echo -n 'Additional TCP options:'
|
|
case ${log_in_vain} in
|
|
[Nn][Oo] | '')
|
|
;;
|
|
*)
|
|
echo -n ' log_in_vain=YES'
|
|
sysctl -w net.inet.tcp.log_in_vain=1 >/dev/null
|
|
sysctl -w net.inet.udp.log_in_vain=1 >/dev/null
|
|
;;
|
|
esac
|
|
|
|
echo '.'
|
|
network_pass4_done=YES
|
|
}
|
|
|
|
convert_host_conf() {
|
|
host_conf=$1; shift;
|
|
nsswitch_conf=$1; shift;
|
|
awk ' \
|
|
/^[:blank:]*#/ { next } \
|
|
/(hosts|local|file)/ { nsswitch[c] = "files"; c++; next } \
|
|
/(dns|bind)/ { nsswitch[c] = "dns"; c++; next } \
|
|
/nis/ { nsswitch[c] = "nis"; c++; next } \
|
|
{ printf "Warning: unrecognized line [%s]", $0 > "/dev/stderr" } \
|
|
END { \
|
|
printf "hosts: "; \
|
|
for (i in nsswitch) printf "%s ", nsswitch[i]; \
|
|
printf "\n"; \
|
|
}' < $host_conf > $nsswitch_conf
|
|
}
|
|
|