1#!/sbin/sh 2# 3# CDDL HEADER START 4# 5# The contents of this file are subject to the terms of the 6# Common Development and Distribution License (the "License"). 7# You may not use this file except in compliance with the License. 8# 9# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10# or http://www.opensolaris.org/os/licensing. 11# See the License for the specific language governing permissions 12# and limitations under the License. 13# 14# When distributing Covered Code, include this CDDL HEADER in each 15# file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16# If applicable, add the following below this CDDL HEADER, with the 17# fields enclosed by brackets "[]" replaced with your own identifying 18# information: Portions Copyright [yyyy] [name of copyright owner] 19# 20# CDDL HEADER END 21# 22# 23# Copyright 2007 Sun Microsystems, Inc. All rights reserved. 24# Use is subject to license terms. 25# 26# ident "%Z%%M% %I% %E% SMI" 27 28# This script configures IP routing. 29 30. /lib/svc/share/smf_include.sh 31 32# 33# In a shared-IP zone we need this service to be up, but all of the work 34# it tries to do is irrelevant (and will actually lead to the service 35# failing if we try to do it), so just bail out. 36# In the global zone and exclusive-IP zones we proceed. 37# 38smf_configure_ip || exit $SMF_EXIT_OK 39 40# 41# If routing.conf file is in place, and has not already been read in 42# by previous invokation of routeadm, legacy configuration is upgraded 43# by this call to "routeadm -u". This call is also needed when 44# a /var/svc/profile/upgrade file is found, as it may contain routeadm commands 45# which need to be applied. Finally, routeadm starts in.ndpd by 46# enabling the ndp service (in.ndpd), which is required for IPv6 address 47# autoconfiguration. It would be nice if we could do this in 48# network/loopback, but since the SMF backend is read-only at that 49# point in boot, we cannot. 50# 51/sbin/routeadm -u 52 53# 54# Are we routing dynamically? routeadm(1M) reports this in the 55# "current" values of ipv4/6-routing - if either are true, we are running 56# routing daemons (or at least they are enabled to run). 57# 58dynamic_routing_test=`/sbin/routeadm -p | \ 59nawk '/^ipv[46]-routing [.]*/ { print $2 }' | /usr/bin/grep "current=enabled"` 60if [ -n "$dynamic_routing_test" ]; then 61 dynamic_routing="true" 62fi 63 64# 65# Configure default IPv4 routers using the local "/etc/defaultrouter" 66# configuration file. The file can contain the hostnames or IP 67# addresses of one or more default routers. If hostnames are used, 68# each hostname must also be listed in the local "/etc/hosts" file 69# because NIS and NIS+ are not running at the time that this script is 70# run. Each router name or address is listed on a single line by 71# itself in the file. Anything else on that line after the router's 72# name or address is ignored. Lines that begin with "#" are 73# considered comments and ignored. 74# 75# The default routes listed in the "/etc/defaultrouter" file will 76# replace those added by the kernel during diskless booting. An 77# empty "/etc/defaultrouter" file will cause the default route 78# added by the kernel to be deleted. 79# 80# Note that the default router file is ignored if we received routes 81# from a DHCP server. Our policy is to always trust DHCP over local 82# administration. 83# 84smf_netstrategy 85 86if [ "$_INIT_NET_STRATEGY" = "dhcp" ] && \ 87 [ -n "`/sbin/dhcpinfo Router`" ]; then 88 defrouters=`/sbin/dhcpinfo Router` 89elif [ -f /etc/defaultrouter ]; then 90 defrouters=`/usr/bin/grep -v \^\# /etc/defaultrouter | \ 91 /usr/bin/awk '{print $1}'` 92 if [ -n "$defrouters" ]; then 93 # 94 # We want the default router(s) listed in 95 # /etc/defaultrouter to replace the one added from the 96 # BOOTPARAMS WHOAMI response but we must avoid flushing 97 # the last route between the running system and its 98 # /usr file system. 99 # 100 101 # First, remember the original route. 102 shift $# 103 set -- `/usr/bin/netstat -rn -f inet | \ 104 /usr/bin/grep '^default'` 105 route_IP="$2" 106 107 # 108 # Next, add those from /etc/defaultrouter. While doing 109 # this, if one of the routes we add is for the route 110 # previously added as a result of the BOOTPARAMS 111 # response, we will see a message of the form: 112 # "add net default: gateway a.b.c.d: entry exists" 113 # 114 do_delete=yes 115 for router in $defrouters; do 116 route_added=`/usr/sbin/route -n add default \ 117 -gateway $router` 118 res=$? 119 set -- $route_added 120 [ $res -ne 0 -a "$5" = "$route_IP:" ] && do_delete=no 121 done 122 123 # 124 # Finally, delete the original default route unless it 125 # was also listed in the defaultrouter file. 126 # 127 if [ -n "$route_IP" -a $do_delete = yes ]; then 128 /usr/sbin/route -n delete default \ 129 -gateway $route_IP >/dev/null 130 fi 131 else 132 /usr/sbin/route -fn > /dev/null 133 fi 134else 135 defrouters= 136fi 137 138# 139# Use routeadm(1M) to configure forwarding and launch routing daemons 140# for IPv4 and IPv6 based on preset values. These settings only apply 141# to the global zone. For IPv4 dynamic routing, the system will default 142# to disabled if a default route was previously added via BOOTP, DHCP, 143# or the /etc/defaultrouter file. routeadm also starts in.ndpd. 144# 145if [ "$dynamic_routing" != "true" ] && [ -z "$defrouters" ]; then 146 # 147 # No default routes were setup by "route" command above. 148 # Check the kernel routing table for any other default 149 # routes. 150 # 151 /usr/bin/netstat -rn -f inet | \ 152 /usr/bin/grep default >/dev/null 2>&1 && defrouters=yes 153fi 154 155# 156# The routeadm/ipv4-routing-set property is true if the administrator 157# has run "routeadm -e/-d ipv4-routing". If not, we revert to the 158# appropriate defaults. We no longer run "routeadm -u" on every boot 159# however, as persistent daemon state is now controlled by SMF. 160# 161ipv4_routing_set=`/usr/bin/svcprop -p routeadm/ipv4-routing-set $SMF_FMRI` 162if [ -z "$defrouters" ]; then 163 # 164 # Set default value for ipv4-routing to enabled. If routeadm -e/-d 165 # has not yet been run by the administrator, we apply this default. 166 # The -b option is project-private and informs routeadm not 167 # to treat the enable as administrator-driven. 168 # 169 /usr/sbin/svccfg -s $SMF_FMRI \ 170 setprop routeadm/default-ipv4-routing = true 171 if [ "$ipv4_routing_set" = "false" ]; then 172 /sbin/routeadm -b -e ipv4-routing -u 173 fi 174else 175 # 176 # Default router(s) have been found, so ipv4-routing default value 177 # should be disabled. If routaedm -e/d has not yet been run by 178 # the administrator, we apply this default. The -b option is 179 # project-private and informs routeadm not to treat the disable as 180 # administrator-driven. 181 # 182 /usr/sbin/svccfg -s $SMF_FMRI \ 183 setprop routeadm/default-ipv4-routing = false 184 if [ "$ipv4_routing_set" = "false" ]; then 185 /sbin/routeadm -b -d ipv4-routing -u 186 fi 187fi 188 189# 190# Set 6to4 Relay Router communication support policy and, if applicable, 191# the destination Relay Router IPv4 address. See /etc/default/inetinit for 192# setting and further info on ACCEPT6TO4RELAY and RELAY6TO4ADDR. 193# If ACCEPT6TO4RELAY=NO, the default value in the kernel will 194# be used. 195# 196ACCEPT6TO4RELAY=`echo "$ACCEPT6TO4RELAY" | /usr/bin/tr '[A-Z]' '[a-z]'` 197if [ "$ACCEPT6TO4RELAY" = yes ]; then 198 if [ "$RELAY6TO4ADDR" ]; then 199 /usr/sbin/6to4relay -e -a $RELAY6TO4ADDR 200 else 201 /usr/sbin/6to4relay -e 202 fi 203fi 204 205# 206# Read /etc/inet/static_routes and add each route. 207# 208if [ -f /etc/inet/static_routes ]; then 209 echo "Adding persistent routes:" 210 /usr/bin/egrep -v "^(#|$)" /etc/inet/static_routes | while read line; do 211 /usr/sbin/route add $line 212 done 213fi 214 215# Clear exit status. 216exit $SMF_EXIT_OK 217