d499929ea1
to avoid error messages printed on /var/log/messages.
Recently added "stf" interface has IFF_MULTICAST bit set,
because IPv6 don't work on non IFF_MULTICAST set interfaces
in current implementation.
But "stf" interface is multi-dest IPv6 over IPv4 tunnel, so
can't treat multicast packet with no special configuration.
On the other hand, tools like "rtadvd", "pim6dd", "pim6sd"
send messages on IFF_MULTICAST set interfaces by default.
So there will be many bogus error message on /var/log/messages,
that multicast packets sent to "stf0" failed.
So,
-strip "stf0" from rtadvd sending interfaces in rc.network6
("rtadvd" is a daemon used only for local subnet, so it
will never need to send its packets over "stf0" interfaces.)
-Add default configuration files for "pim6dd" and "pim6sd",
and disable "stf0" in those files.
Approved by: jkh
267 lines
6.1 KiB
Bash
267 lines
6.1 KiB
Bash
#! /bin/sh
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# $FreeBSD$
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# Note that almost all of the user-configurable behavior is not in this
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# 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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# IPv6 startup
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network6_pass1() {
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echo -n 'Doing IPv6 network setup:'
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case ${ipv6_gateway_enable} in
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[Yy][Ee][Ss])
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#
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# list of interfaces, and prefix for interfaces
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#
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case ${ipv6_network_interfaces} in
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[Aa][Uu][Tt][Oo])
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ipv6_network_interfaces="`ifconfig -l`"
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;;
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esac
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;;
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*)
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#
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# manual configurations - in case ip6_gateway_enable=NO
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# you can configure only single interface,
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# as specification assumes that
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# autoconfigured host has single interface only.
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#
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case ${ipv6_network_interfaces} in
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[Aa][Uu][Tt][Oo])
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ipv6_network_interfaces="`ifconfig -l \
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| sed -e 's/ .*//'`"
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;;
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esac
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;;
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esac
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# just to make sure
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ifconfig lo0 up
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# disallow "internal" addresses to appear on the wire
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route add -inet6 ::ffff:0.0.0.0 -prefixlen 96 ::1 -reject
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route add -inet6 ::0.0.0.0 -prefixlen 96 ::1 -reject
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case ${ipv6_gateway_enable} in
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[Yy][Ee][Ss])
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# act as a router
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sysctl -w net.inet6.ip6.forwarding=1
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sysctl -w net.inet6.ip6.accept_rtadv=0
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# wait for DAD
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for i in $ipv6_network_interfaces; do
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ifconfig $i up
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done
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sleep `sysctl -n net.inet6.ip6.dad_count`
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sleep 1
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# setting up interfaces
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for i in $ipv6_network_interfaces; do
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eval prefix=\$ipv6_prefix_$i
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case ${prefix} in
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'')
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continue;
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;;
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esac
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for j in ${prefix}; do
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case ${prefixcmd_enable} in
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[Yy][Ee][Ss])
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prefix $i $j::
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;;
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*)
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laddr=`ifconfig $i inet6 \
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| grep 'inet6 fe80:' \
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| head -1 | awk '{print $2}'`
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hostid=`echo ${laddr} | sed \
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-e 's/fe80:[0-9a-fA-F]+::/fe80::/' \
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-e 's/fe80:://' -e 's/@.*//'`
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address=$j\:${hostid}
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eval hostid_$i=${hostid}
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eval address_$i=${address}
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ifconfig $i inet6 ${address} \
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prefixlen 64 alias
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;;
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esac
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# subnet-router anycast address (rfc2373)
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ifconfig $i inet6 $j:: prefixlen 64 \
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alias anycast
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done
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ifconfig $i inet6
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done
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# again, wait for DAD's completion (for global addrs)
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sleep `sysctl -n net.inet6.ip6.dad_count`
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sleep 1
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# Filter out interfaces on which IPv6 addr init failed.
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ipv6_working_interfaces=""
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for i in ${ipv6_network_interfaces}; do
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laddr=`ifconfig $i inet6 2>/dev/null | \
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grep 'inet6 fe80:' | \
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head -1 | grep -v tentative`
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case ${laddr} in
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'')
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;;
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*)
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ipv6_working_interfaces="$i \
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${ipv6_working_interfaces}"
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;;
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esac
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done
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ipv6_network_interfaces=${ipv6_working_interfaces}
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# gifconfig
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network6_gif_setup
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# install the "default interface" to kernel, which will be used
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# as the default route when there's no router.
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network6_default_interface_setup
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# ipv6_router
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case ${ipv6_router_enable} in
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[Yy][Ee][Ss])
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if [ -x ${ipv6_router} ]; then
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echo -n " ${ipv6_router}"
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${ipv6_router} ${ipv6_router_flags}
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fi
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;;
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esac
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# rtadvd
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# This should enabled with a great care.
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# You may want to fine-tune /etc/rtadvd.conf.
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#
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# And if you wish your rtadvd to receive and process
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# router renumbering messages, specify your Router Renumbering
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# security policy by -P option.
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#
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# See `man 3 ipsec_set_policy` for IPsec policy specification
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# details.
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# (CAUTION: This enables your routers prefix renumbering
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# from another machine, so if you enable this, do it with
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# enough care.)
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#
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case ${rtadvd_enable} in
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[Yy][Ee][Ss])
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# default
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rtadvd_interfaces=`echo ${ipv6_network_interfaces} | \
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sed -e 's/ stf0//'`
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rtadvd ${rtadvd_interfaces}
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#
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# Enable Router Renumbering, unicast case
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# (use correct src/dst addr)
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# rtadvd -P "in ipsec ah/transport/fec0:0:0:1::1-fec0:0:0:10::1/require" \
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# ${ipv6_network_interfaces}
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# Enable Router Renumbering, multicast case
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# (use correct src addr)
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# rtadvd -P "in ipsec ah/transport/ff05::2-fec0:0:0:10::1/require" \
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# ${ipv6_network_interfaces}
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;;
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esac
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# mroute6d
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case ${mroute6d_enable} in
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[Yy][Ee][Ss])
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if [ -x ${mroute6d_program} ]; then
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echo -n " ${mroute6d_program}"
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${mroute6d_program} ${mroute6d_flags}
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fi
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;;
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esac
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;;
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*)
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# act as endhost - automatically configured
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sysctl -w net.inet6.ip6.forwarding=0
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sysctl -w net.inet6.ip6.accept_rtadv=1
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ifconfig ${ipv6_network_interfaces} up
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rtsol ${ipv6_network_interfaces}
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# wait for DAD's completion (for global addrs)
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sleep `sysctl -n net.inet6.ip6.dad_count`
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sleep 1
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# gifconfig
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network6_gif_setup
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# install the "default interface" to kernel, which will be used
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# as the default route when there's no router.
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# ndp -I ${ipv6_default_interface}
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network6_default_interface_setup
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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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network6_pass1_done=YES
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}
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network6_gif_setup() {
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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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gifconfig $i ${peers}
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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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network6_default_interface_setup() {
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# Choose IPv6 default interface if it is not clearly specified.
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case ${ipv6_default_interface} in
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'')
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for i in ${ipv6_network_interfaces}; do
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laddr=`ifconfig $i inet6 2>/dev/null \
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| grep 'inet6 fe80:' | \
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head -1 | grep -v tentative`
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case ${laddr} in
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'')
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;;
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*)
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ipv6_default_interface=$i
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break
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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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# Disallow unicast packets without outgoing scope identifiers,
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# or route such packets to a "default" interface, if it is specified.
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case ${ipv6_default_interface} in
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'')
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route add -inet6 fe80:: -prefixlen 10 ::1 -reject
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route add -inet6 ff02:: -prefixlen 16 ::1 -reject
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;;
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*)
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laddr=`ifconfig ${ipv6_default_interface} inet6 \
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| grep 'inet6 fe80:' | head -1 | awk '{print $2}'`
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route add -inet6 fe80:: ${laddr} -prefixlen 10 -interface \
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-cloning
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route add -inet6 ff02:: ${laddr} -prefixlen 16 -interface \
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-cloning
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;;
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esac
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}
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