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 2009 Sun Microsystems, Inc. All rights reserved. 24# Use is subject to license terms. 25 26# This script configures IP routing. 27 28. /lib/svc/share/smf_include.sh 29 30# 31# In a shared-IP zone we need this service to be up, but all of the work 32# it tries to do is irrelevant (and will actually lead to the service 33# failing if we try to do it), so just bail out. 34# In the global zone and exclusive-IP zones we proceed. 35# 36smf_configure_ip || exit $SMF_EXIT_OK 37 38# 39# If routing.conf file is in place, and has not already been read in 40# by previous invokation of routeadm, legacy configuration is upgraded 41# by this call to "routeadm -u". This call is also needed when 42# a /var/svc/profile/upgrade file is found, as it may contain routeadm commands 43# which need to be applied. Finally, routeadm starts in.ndpd by 44# enabling the ndp service (in.ndpd), which is required for IPv6 address 45# autoconfiguration. It would be nice if we could do this in 46# network/loopback, but since the SMF backend is read-only at that 47# point in boot, we cannot. 48# 49/sbin/routeadm -u 50 51# 52# Are we routing dynamically? routeadm(1M) reports this in the 53# "current" values of ipv4/6-routing - if either are true, we are running 54# routing daemons (or at least they are enabled to run). 55# 56dynamic_routing_test=`/sbin/routeadm -p | \ 57nawk '/^ipv[46]-routing [.]*/ { print $2 }' | /usr/bin/grep "current=enabled"` 58if [ -n "$dynamic_routing_test" ]; then 59 dynamic_routing="true" 60fi 61 62# 63# Configure default IPv4 routers using the local "/etc/defaultrouter" 64# configuration file. The file can contain the hostnames or IP 65# addresses of one or more default routers. If hostnames are used, 66# each hostname must also be listed in the local "/etc/hosts" file 67# because NIS and NIS+ are not running at the time that this script is 68# run. Each router name or address is listed on a single line by 69# itself in the file. Anything else on that line after the router's 70# name or address is ignored. Lines that begin with "#" are 71# considered comments and ignored. 72# 73# The default routes listed in the "/etc/defaultrouter" file will 74# replace those added by the kernel during diskless booting. An 75# empty "/etc/defaultrouter" file will cause the default route 76# added by the kernel to be deleted. 77# 78# Note that the default router file is ignored if we received routes 79# from a DHCP server. Our policy is to always trust DHCP over local 80# administration. 81# 82smf_netstrategy 83 84if [ "$_INIT_NET_STRATEGY" = "dhcp" ] && \ 85 [ -n "`/sbin/dhcpinfo Router`" ]; then 86 defrouters=`/sbin/dhcpinfo Router` 87elif [ -f /etc/defaultrouter ]; then 88 defrouters=`/usr/bin/grep -v \^\# /etc/defaultrouter | \ 89 /usr/bin/awk '{print $1}'` 90 if [ -n "$defrouters" ]; then 91 # 92 # We want the default router(s) listed in 93 # /etc/defaultrouter to replace the one added from the 94 # BOOTPARAMS WHOAMI response but we must avoid flushing 95 # the last route between the running system and its 96 # /usr file system. 97 # 98 99 # First, remember the original route. 100 shift $# 101 set -- `/usr/bin/netstat -rn -f inet | \ 102 /usr/bin/grep '^default'` 103 route_IP="$2" 104 105 # 106 # Next, add those from /etc/defaultrouter. While doing 107 # this, if one of the routes we add is for the route 108 # previously added as a result of the BOOTPARAMS 109 # response, we will see a message of the form: 110 # "add net default: gateway a.b.c.d: entry exists" 111 # 112 do_delete=yes 113 for router in $defrouters; do 114 route_added=`/usr/sbin/route -n add default \ 115 -gateway $router` 116 res=$? 117 set -- $route_added 118 [ $res -ne 0 -a "$5" = "$route_IP:" ] && do_delete=no 119 done 120 121 # 122 # Finally, delete the original default route unless it 123 # was also listed in the defaultrouter file. 124 # 125 if [ -n "$route_IP" -a $do_delete = yes ]; then 126 /usr/sbin/route -n delete default \ 127 -gateway $route_IP >/dev/null 128 fi 129 else 130 /usr/sbin/route -fn > /dev/null 131 fi 132else 133 defrouters= 134fi 135 136# 137# Use routeadm(1M) to configure forwarding and launch routing daemons 138# for IPv4 and IPv6 based on preset values. These settings only apply 139# to the global zone. For IPv4 dynamic routing, the system will default 140# to disabled if a default route was previously added via BOOTP, DHCP, 141# or the /etc/defaultrouter file. routeadm also starts in.ndpd. 142# 143if [ "$dynamic_routing" != "true" ] && [ -z "$defrouters" ]; then 144 # 145 # No default routes were setup by "route" command above. 146 # Check the kernel routing table for any other default 147 # routes. 148 # 149 /usr/bin/netstat -rn -f inet | \ 150 /usr/bin/grep default >/dev/null 2>&1 && defrouters=yes 151fi 152 153# 154# The routeadm/ipv4-routing-set property is true if the administrator 155# has run "routeadm -e/-d ipv4-routing". If not, we revert to the 156# appropriate defaults. We no longer run "routeadm -u" on every boot 157# however, as persistent daemon state is now controlled by SMF. 158# 159ipv4_routing_set=`/usr/bin/svcprop -p routeadm/ipv4-routing-set $SMF_FMRI` 160if [ -z "$defrouters" ]; then 161 # 162 # Set default value for ipv4-routing to enabled. If routeadm -e/-d 163 # has not yet been run by the administrator, we apply this default. 164 # The -b option is project-private and informs routeadm not 165 # to treat the enable as administrator-driven. 166 # 167 /usr/sbin/svccfg -s $SMF_FMRI \ 168 setprop routeadm/default-ipv4-routing = true 169 if [ "$ipv4_routing_set" = "false" ]; then 170 /sbin/routeadm -b -e ipv4-routing -u 171 fi 172else 173 # 174 # Default router(s) have been found, so ipv4-routing default value 175 # should be disabled. If routaedm -e/d has not yet been run by 176 # the administrator, we apply this default. The -b option is 177 # project-private and informs routeadm not to treat the disable as 178 # administrator-driven. 179 # 180 /usr/sbin/svccfg -s $SMF_FMRI \ 181 setprop routeadm/default-ipv4-routing = false 182 if [ "$ipv4_routing_set" = "false" ]; then 183 /sbin/routeadm -b -d ipv4-routing -u 184 fi 185fi 186 187# 188# Read /etc/inet/static_routes and add each route. 189# 190if [ -f /etc/inet/static_routes ]; then 191 echo "Adding persistent routes:" 192 /usr/bin/egrep -v "^(#|$)" /etc/inet/static_routes | while read line; do 193 /usr/sbin/route add $line 194 done 195fi 196 197# Clear exit status. 198exit $SMF_EXIT_OK 199