net-routing-setup revision ceb97a6a3232437e1f0b4c6b8604bc1b4245ccc5
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a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# Copyright 2006 Sun Microsystems, Inc. All rights reserved.
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# Use is subject to license terms.
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# ident "%Z%%M% %I% %E% SMI"
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# This script configures IP routing.
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# In a zone we need this service to be up, but all of the work
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# it tries to do is irrelevant (and will actually lead to the service
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# failing if we try to do it), so just bail out.
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# If routing.conf file is in place, and has not already been read in
ceb97a6a3232437e1f0b4c6b8604bc1b4245ccc5amaguire# by previous invokation of routeadm, legacy configuration is upgraded
ceb97a6a3232437e1f0b4c6b8604bc1b4245ccc5amaguire# by this call to "routeadm -u". This call is also needed when
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# a /var/svc/profile/upgrade file is found, as it may contain routeadm commands
ceb97a6a3232437e1f0b4c6b8604bc1b4245ccc5amaguire# which need to be applied. Finally, routeadm starts in.ndpd by
ceb97a6a3232437e1f0b4c6b8604bc1b4245ccc5amaguire# enabling the ndp service (in.ndpd), which is required for IPv6 address
ceb97a6a3232437e1f0b4c6b8604bc1b4245ccc5amaguire# autoconfiguration. It would be nice if we could do this in
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# network/loopback, but since the SMF backend is read-only at that
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# point in boot, we cannot.
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# Are we routing dynamically? routeadm(1M) reports this in the
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# "current" values of ipv4/6-routing - if either are true, we are running
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# routing daemons (or at least they are enabled to run).
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguirenawk '/^ipv[46]-routing [.]*/ { print $2 }' | /usr/bin/grep "current=enabled"`
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguireif [ -n "$dynamic_routing_test" ]; then
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire/usr/sbin/ifconfig -a6u >/etc/svc/volatile/ifconfig.$$
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguirenumv6ifs=`/usr/bin/grep -c inet6 /etc/svc/volatile/ifconfig.$$`
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire # Add a static route for multicast packets out of a link-local
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire # interface, although would like to specify multicast interface using
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire # an interface name!
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire /inet6 fe80:/ {
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire print substr($2, 1, index($2, "/") - 1)
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire if [ -n "$1" ]; then
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire echo "Setting default IPv6 interface for multicast:" \
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire "add net ff00::/8: gateway $1"
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire /usr/sbin/route -n add -interface -inet6 "ff00::/8" "$1" \
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# Configure default IPv4 routers using the local "/etc/defaultrouter"
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# configuration file. The file can contain the hostnames or IP
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# addresses of one or more default routers. If hostnames are used,
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# each hostname must also be listed in the local "/etc/hosts" file
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# because NIS and NIS+ are not running at the time that this script is
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# run. Each router name or address is listed on a single line by
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# itself in the file. Anything else on that line after the router's
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# name or address is ignored. Lines that begin with "#" are
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# considered comments and ignored.
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# The default routes listed in the "/etc/defaultrouter" file will
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# replace those added by the kernel during diskless booting. An
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# empty "/etc/defaultrouter" file will cause the default route
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# added by the kernel to be deleted.
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# Note that the default router file is ignored if we received routes
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# from a DHCP server. Our policy is to always trust DHCP over local
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# administration.
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire defrouters=`/usr/bin/grep -v \^\# /etc/defaultrouter | \
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire if [ -n "$defrouters" ]; then
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire # We want the default router(s) listed in
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire # /etc/defaultrouter to replace the one added from the
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire # BOOTPARAMS WHOAMI response but we must avoid flushing
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire # the last route between the running system and its
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire # /usr file system.
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire # First, remember the original route.
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire # Next, add those from /etc/defaultrouter. While doing
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire # this, if one of the routes we add is for the route
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire # previously added as a result of the BOOTPARAMS
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire # response, we will see a message of the form:
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire # "add net default: gateway a.b.c.d: entry exists"
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire # Finally, delete the original default route unless it
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire # was also listed in the defaultrouter file.
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# Use routeadm(1M) to configure forwarding and launch routing daemons
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# for IPv4 and IPv6 based on preset values. These settings only apply
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# to the global zone. For IPv4 dynamic routing, the system will default
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# to disabled if a default route was previously added via BOOTP, DHCP,
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# or the /etc/defaultrouter file. routeadm also starts in.ndpd.
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguireif [ "$dynamic_routing" != "true" ] && [ -z "$defrouters" ]; then
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire # No default routes were setup by "route" command above.
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire # Check the kernel routing table for any other default
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire /usr/bin/grep default >/dev/null 2>&1 && defrouters=yes
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# The routeadm/ipv4-routing-set property is true if the administrator
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# has run "routeadm -e/-d ipv4-routing". If not, we revert to the
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# appropriate defaults. We no longer run "routeadm -u" on every boot
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# however, as persistent daemon state is now controlled by SMF.
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguireipv4_routing_set=`/usr/bin/svcprop -p routeadm/ipv4-routing-set $SMF_FMRI`
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguireif [ -z "$defrouters" ]; then
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire # Set default value for ipv4-routing to enabled. If routeadm -e/-d
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire # has not yet been run by the administrator, we apply this default.
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire # Default router(s) have been found, so ipv4-routing default value
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire # should be disabled. If routaedm -e/d has not yet been run by
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire # the administrator, we apply this default.
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# Set 6to4 Relay Router communication support policy and, if applicable,
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# the destination Relay Router IPv4 address. See /etc/default/inetinit for
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# setting and further info on ACCEPT6TO4RELAY and RELAY6TO4ADDR.
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# If ACCEPT6TO4RELAY=NO, the default value in the kernel will
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguireACCEPT6TO4RELAY=`echo "$ACCEPT6TO4RELAY" | /usr/bin/tr '[A-Z]' '[a-z]'`
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire if [ "$RELAY6TO4ADDR" ]; then
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# Read /etc/inet/static_routes and add each route.
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire echo "Adding persistent routes:"
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire /usr/bin/egrep -v "^(#|$)" /etc/inet/static_routes | while read line; do
a192e900f6d2b0e1a822e3252c0dfd795ed49d76amaguire# Clear exit status.