#!/bin/sh - # # $NetBSD: netstart,v 1.65 1999/12/09 14:18:07 itojun Exp $ # from: @(#)netstart 8.1 (Berkeley) 7/23/93 if [ -f /etc/rc.subr ]; then . /etc/rc.subr else echo "Can't read /etc/rc.subr; aborting." exit 1; fi if [ -f /etc/rc.conf ]; then . /etc/rc.conf fi # If $hostname is set, use it for my Internet name, otherwise use /etc/myname if [ -z "$hostname" -a -f /etc/myname ]; then hostname=`cat /etc/myname` fi if [ -n "$hostname" ]; then echo "hostname: $hostname" hostname $hostname fi # Check $domainname first, then /etc/defaultdomain, for NIS/YP domain name if [ -z "$domainname" -a -f /etc/defaultdomain ]; then domainname=`cat /etc/defaultdomain` fi if [ -n "$domainname" ]; then echo "domainname: $domainname" domainname $domainname fi # Flush all routes just to make sure it is clean if checkyesno flushroutes; then route flush fi # Enable, flush and install packet filter rules before configuring interfaces. if checkyesno ipfilter; then if [ -f /etc/ipf.conf ]; then echo 'installing packet filter rules ... ' ipf -E -Fa -f /etc/ipf.conf else echo echo "WARNING: /etc/ipf.conf not readable " \ "ipfilter not started." # abort the boot rather than risk a security problem exit 1; fi fi # Set the address for the first loopback interface, so that the auto-route # from a newly configured interface's address to lo0 works correctly. # # NOTE: obscure networking problems may occur if lo0 isn't configured... # ifconfig lo0 inet 127.0.0.1 # Configure all of the network interfaces listed in $net_interfaces; # if $auto_ifconfig is YES, grab all interfaces from ifconfig. # In the following, "xxN" stands in for interface names, like "le0". # For any interfaces that has an $ifconfig_xxN variable associated, # we do "ifconfig xxN $ifconfig_xxN". # If there is no such variable, we take the contents of the file # /etc/ifconfig.xxN, and run "ifconfig xxN" repeatedly, using each # line of the file as the arguments for a seperate "ifconfig" invocation. # # In order to configure an interface reasonably, you at the very least # need to specify "[addr_family] [hostname]" (as in "inet my.domain.org"), # and probably a netmask (as in "netmask 0xffffffe0"). You will # frequently need to specify a media type, as in "media UTP", for # interface cards with multiple media connections that do not autoconfigure. # see the ifconfig manual page for details. if [ "$net_interfaces" != NO ]; then if checkyesno auto_ifconfig; then tmp="`ifconfig -l`" else tmp="$net_interfaces" fi echo -n 'configuring network interfaces:' for int in $tmp; do eval `echo 'args=$ifconfig_'$int` if [ -n "$args" ]; then echo -n " $int" ifconfig $int $args elif [ -f /etc/ifconfig.$int ]; then echo -n " $int" (while read args; do if [ -n "`eval echo '$args'`" ] ; then ifconfig $int $args fi done) < /etc/ifconfig.$int else if ! checkyesno auto_ifconfig; then echo echo "WARNING: /etc/ifconfig.$int missing " \ "and ifconfig_$int not set; " \ "interface $int not configured." fi continue fi configured_interfaces="$configured_interfaces $int" done echo '.' fi # Check $defaultroute, then /etc/mygate, for the name of my gateway host. # That name must be in /etc/hosts. if [ -z "$defaultroute" -a -f /etc/mygate ]; then defaultroute=`cat /etc/mygate` fi if [ -n "$defaultroute" ]; then route add default $defaultroute fi # Check if each configured interface xxN has an $ifaliases_xxN variable # associated, then configure additional IP addresses for that interface. # The variable contains a list of "address netmask" pairs, with "netmask" # set to "-" if the interface default netmask is to be used. # # Note that $ifaliases_xxN works only with IPv4 addresses and considered # not recommended. See below (/etc/ifaliases section) for alternative. # if [ -n "$configured_interfaces" ]; then echo 'adding interface aliases:'; done_aliases_message=yes fi for int in $configured_interfaces; do eval `echo 'args=$ifaliases_'$int` if [ -n "$args" ]; then set -- $args while [ $# -ge 2 ]; do addr=$1 ; net=$2 ; shift 2 if [ "$net" = "-" ]; then ifconfig $int inet alias $addr else ifconfig $int inet alias $addr netmask $net fi # Use loopback, not the wire route add $addr 127.0.0.1 done fi done # /etc/ifaliases, if it exists, contains the names of additional IP # addresses for each interface. It is formatted as a series of lines # that contain # address interface netmask # # Note that /etc/ifaliases works only with IPv4 addresses and considered # not recommended. Recommend using /etc/ifconfig.xxN like below instead # (/etc/ifconfig.xxN allows multiple lines): # inet 10.1.1.1 netmask 0xffffff00 # inet 10.1.1.2 netmask 0xffffff00 alias # inet6 fec0::1 prefixlen 64 alias # if [ -f /etc/ifaliases ]; then ( if [ "$done_aliases_message" != yes ]; then echo 'adding interface aliases:'; fi while read addr int net; do if [ -z "$net" ]; then ifconfig $int inet alias $addr else ifconfig $int inet alias $addr netmask $net fi # use loopback, not the wire route add $addr 127.0.0.1 done ) < /etc/ifaliases fi # /etc/ppp/peers and $ppp_peers contain boot configuration information # for pppd. each value in $ppp_peers that has a file in /etc/ppp/peers # of the same name, will be run as `pppd '. if [ -n "$ppp_peers" ]; then # pppd is in /usr - need to ensure it is mounted mount /usr >/dev/null 2>&1 set -- $ppp_peers echo -n "starting pppd:" while [ $# -ge 1 ]; do peer=$1; shift if [ -f /etc/ppp/peers/$peer ]; then pppd call $peer echo -n " $peer" fi done echo "." fi if checkyesno dhclient; then echo -n "starting dhcp client..."; dhclient $dhclient_flags fi # IPv6 # Note that manual configuration can be done in the above, using ifconfig. dadcount=`sysctl -n net.inet6.ip6.dad_count 2>/dev/null` if [ "x$dadcount" = "x" ]; then # IPv6 is not configured in the kernel. do not bother. else # disallow scoped unicast dest without outgoing scope identifiers. route add -inet6 fe80:: -prefixlen 10 ::1 -reject route add -inet6 fc80:: -prefixlen 10 ::1 -reject # disallow "internal" addresses to appear on the wire. # you may want to enable them for experiments. route add -inet6 ::ffff:0.0.0.0 -prefixlen 96 ::1 -reject route add -inet6 ::0.0.0.0 -prefixlen 96 ::1 -reject sysctl -w net.inet6.ip6.forwarding=0 sysctl -w net.inet6.ip6.accept_rtadv=0 if checkyesno ip6forwarding; then if checkyesno rtsol; then echo "WARNING: rtsol cannot be used on IPv6 router." else sysctl -w net.inet6.ip6.forwarding=1 fi else if checkyesno rtsol; then echo -n "sending IPv6 router solicitation..."; sysctl -w net.inet6.ip6.accept_rtadv=1 rtsol $rtsol_flags fi fi # wait till DAD is completed. # outside of the loop in case ifconfig is used sleep $dadcount sleep 1 fi if [ -s /etc/netstart.local ]; then . /etc/netstart.local fi