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import from netbsd 1.5.2

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commit 6d4775299da06e95ee6f0455909d58a0192d9e81 1 parent 76944fb
jinmei authored
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  1. +390 −0 netbsd/etc/rc.d/network
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390 netbsd/etc/rc.d/network
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+#!/bin/sh
+#
+# $NetBSD: network,v 1.11.4.7 2001/05/02 22:52:22 he Exp $
+#
+
+# PROVIDE: network
+# REQUIRE: ipfilter ipsec mountcritlocal root tty sysctl
+
+. /etc/rc.subr
+
+name="network"
+start_cmd="network_start"
+stop_cmd="network_stop"
+
+network_start()
+{
+ # set hostname, turn on network
+ #
+ echo "Starting network."
+
+ # 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
+ else
+ # Don't warn about it if we're going to run
+ # DHCP later, as we will probably get the
+ # hostname at that time.
+ #
+ if ! checkyesno dhclient && [ -z "`hostname`" ]; then
+ warn "\$hostname not set."
+ fi
+ 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 "NIS domainname: $domainname"
+ domainname $domainname
+ fi
+
+ # Flush all routes just to make sure it is clean
+ if checkyesno flushroutes; then
+ route -n flush
+ 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
+
+ # According to RFC1122, 127.0.0.0/8 should not leave the node.
+ #
+ route add -inet 127.0.0.0 -netmask 0xff000000 127.0.0.1 -reject
+
+ # IPv6 routing setups, and host/router mode selection.
+ #
+ if ifconfig lo0 inet6 >/dev/null 2>&1; then
+ # We have IPv6 support in kernel.
+
+ # disallow link-local unicast dest without outgoing scope
+ # identifiers.
+ #
+ route add -inet6 fe80:: -prefixlen 10 ::1 -reject
+
+ # disallow site-local unicast dest without outgoing scope
+ # identifiers.
+ # If you configure site-locals without scope id (it is
+ # permissible config for routers that are not on scope
+ # boundary), you may want to comment the following one out.
+ #
+ route add -inet6 fec0:: -prefixlen 10 ::1 -reject
+
+ # disallow "internal" addresses to appear on the wire.
+ #
+ route add -inet6 ::ffff:0.0.0.0 -prefixlen 96 ::1 -reject
+
+ # disallow packets to malicious IPv4 compatible prefix
+ #
+ route add -inet6 ::224.0.0.0 -prefixlen 100 ::1 -reject
+ route add -inet6 ::127.0.0.0 -prefixlen 104 ::1 -reject
+ route add -inet6 ::0.0.0.0 -prefixlen 104 ::1 -reject
+ route add -inet6 ::255.0.0.0 -prefixlen 104 ::1 -reject
+
+ # disallow packets to malicious 6to4 prefix
+ #
+ route add -inet6 2002:e000:: -prefixlen 20 ::1 -reject
+ route add -inet6 2002:7f00:: -prefixlen 24 ::1 -reject
+ route add -inet6 2002:0000:: -prefixlen 24 ::1 -reject
+ route add -inet6 2002:ff00:: -prefixlen 24 ::1 -reject
+
+ # Completely disallow packets to IPv4 compatible prefix.
+ # This may conflict with RFC1933 under following circumstances:
+ # (1) An IPv6-only KAME node tries to originate packets to IPv4
+ # comatible destination. The KAME node has no IPv4
+ # compatible support. Under RFC1933, it should transmit
+ # native IPv6 packets toward IPv4 compatible destination,
+ # hoping it would reach a router that forwards the packet
+ # toward auto-tunnel interface.
+ # (2) An IPv6-only node originates a packet to IPv4 compatible
+ # destination. A KAME node is acting as an IPv6 router, and
+ # asked to forward it.
+ # Due to rare use of IPv4 compatible address, and security
+ # issues with it, we disable it by default.
+ #
+ route add -inet6 ::0.0.0.0 -prefixlen 96 ::1 -reject
+
+ sysctl -w net.inet6.ip6.forwarding=0 >/dev/null
+ sysctl -w net.inet6.ip6.accept_rtadv=0 >/dev/null
+
+ # backward compatibility
+ #
+ if [ -z "$ip6mode" ] && [ -n "$ip6forwarding" ]; then
+ warn 'Please migrate to newer rc.conf' \
+ '(use ip6mode, not ip6forwarding)'
+ if checkyesno ip6forwarding; then
+ ip6mode=router
+ elif checkyesno rtsol; then
+ ip6mode=autohost
+ else
+ ip6mode=host
+ fi
+ fi
+
+ case $ip6mode in
+ router)
+ echo 'IPv6 mode: router'
+ sysctl -w net.inet6.ip6.forwarding=1 >/dev/null
+ ;;
+
+ autohost)
+ echo 'IPv6 mode: autoconfigured host'
+ sysctl -w net.inet6.ip6.accept_rtadv=1 >/dev/null
+ ;;
+
+ host)
+ echo 'IPv6 mode: host'
+ ;;
+
+ *) echo 'WARNING: invalid value in ip6mode'
+ ;;
+
+ esac
+ fi
+
+ # 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 $ifconfig_xxN".
+ # If there is no such variable, we take the contents of the file
+ # /etc/ifconfig.xxN, and run "ifconfig xxN" repeatedly, using each
+ # line of the file as the arguments for a seperate "ifconfig"
+ # invocation.
+ #
+ # In order to configure an interface reasonably, you at the very least
+ # need to specify "[addr_family] [hostname]" (e.g "inet my.domain.org"),
+ # and probably a netmask (as in "netmask 0xffffffe0"). You will
+ # frequently need to specify a media type, as in "media UTP", for
+ # interface cards with multiple media connections that do not
+ # autoconfigure. See the ifconfig manual page for details.
+ #
+ # Note that /etc/ifconfig.xxN takes multiple lines. The following
+ # configuration is possible:
+ # inet 10.1.1.1 netmask 0xffffff00
+ # inet 10.1.1.2 netmask 0xffffff00 alias
+ # inet6 fec0::1 prefixlen 64 alias
+ #
+ # You can put shell script fragment into /etc/ifconfig.xxN by
+ # starting a line with "!". Refer to ifconfig.if(5) for details.
+ #
+ if [ "$net_interfaces" != NO ]; then
+ if checkyesno auto_ifconfig; then
+ tmp="`ifconfig -l`"
+ for cloner in `ifconfig -C 2>/dev/null`; do
+ for int \
+ in `/bin/ls /etc/ifconfig.${cloner}[0-9]* 2>/dev/null`; do
+ int=`IFS='.'; set -- $int; echo $2`
+ tmp="$tmp $int"
+ done
+ done
+ else
+ tmp="$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 " $int"
+ while read args; do
+ [ -z "$args" ] && continue
+ case "$args" in
+ "#"*)
+ ;;
+ "!"*)
+ eval ${args#*!}
+ ;;
+ *)
+ ifconfig $int $args
+ ;;
+ esac
+ done < /etc/ifconfig.$int
+ else
+ if ! checkyesno auto_ifconfig; then
+ echo
+ warn \
+ "/etc/ifconfig.$int missing and ifconfig_$int not set;"
+ warn "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 $ifaliases_xxN works only with certain configurations and
+ # considered not recommended. Use /etc/ifconfig.xxN if possible.
+ #
+ #
+ if [ -n "$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
+ # for compatibility only, obsolete
+ ifconfig $int inet alias $addr
+ else
+ ifconfig $int inet alias $addr \
+ netmask $net
+ fi
+ # Use loopback, not the wire
+ route add $addr 127.0.0.1
+ done
+ fi
+ done
+
+ # /etc/ifaliases, if it exists, contains the names of additional IP
+ # addresses for each interface. It is formatted as a series of lines
+ # that contain
+ # address interface netmask
+ #
+ # Note that /etc/ifaliases works only with certain cases only and its
+ # use is not recommended. Use /etc/ifconfig.xxN instead.
+ #
+ #
+ if [ -f /etc/ifaliases ]; then
+ (
+ if [ "$done_aliases_message" != yes ]; then
+ echo "Adding interface aliases:"
+ fi
+ while read addr int net; do
+ if [ -z "$net" ]; then
+ # for compatibility only, obsolete
+ 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
+
+ # IPv6 interface autoconfiguration.
+ #
+ if ifconfig lo0 inet6 >/dev/null 2>&1; then
+ # wait till DAD is completed. always invoke it in case
+ # if are configured manually by ifconfig
+ #
+ dadcount=`sysctl -n net.inet6.ip6.dad_count 2>/dev/null`
+ sleep $dadcount
+ sleep 1
+
+ if checkyesno rtsol; then
+ if [ "$ip6mode" = "autohost" ]; then
+ echo 'Sending router solicitation...'
+ rtsol $rtsol_flags
+ else
+ echo
+ warn \
+ "ip6mode must be set to 'autohost' to use rtsol."
+ fi
+
+ # wait till DAD is completed, for global addresses
+ # configured by router advert message.
+ #
+ sleep $dadcount
+ sleep 1
+ fi
+ fi
+
+ # XXX this must die
+ if [ -s /etc/netstart.local ]; then
+ sh /etc/netstart.local start
+ fi
+}
+
+network_stop()
+{
+ echo "Stopping network."
+
+ # XXX this must die
+ if [ -s /etc/netstart.local ]; then
+ sh /etc/netstart.local stop
+ fi
+
+ echo "Deleting aliases."
+ if [ -f /etc/ifaliases ]; then
+ (
+ while read addr int net; do
+ ifconfig $int inet delete $addr
+ done
+ ) < /etc/ifaliases
+ 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
+ ifconfig $int inet delete $addr
+ done
+ fi
+ done
+
+ # down interfaces
+ #
+ echo -n 'Downing network interfaces:'
+ if [ "$net_interfaces" != NO ]; then
+ if checkyesno auto_ifconfig; then
+ tmp="`ifconfig -l`"
+ else
+ tmp="$net_interfaces"
+ fi
+ for int in $tmp; do
+ eval `echo 'args=$ifconfig_'$int`
+ if [ -n "$args" ] || [ -f /etc/ifconfig.$int ]; then
+ echo -n " $int"
+ ifconfig $int down
+ fi
+ done
+ echo "."
+ fi
+
+ # flush routes
+ #
+ route -n flush
+
+}
+
+load_rc_config $name
+run_rc_command "$1"
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