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/usr/sbin/ifconfig -a6u >/etc/svc/volatile/ifconfig.$$ 65numv6ifs=`/usr/bin/grep -c inet6 /etc/svc/volatile/ifconfig.$$` 66 67if [ $numv6ifs -gt 1 ]; then 68 # 69 # Add a static route for multicast packets out of a link-local 70 # interface, although would like to specify multicast interface using 71 # an interface name! 72 # 73 set -- `/usr/bin/awk ' 74 /inet6 fe80:/ { 75 print substr($2, 1, index($2, "/") - 1) 76 }' /etc/svc/volatile/ifconfig.$$` 77 78 if [ -n "$1" ]; then 79 echo "Setting default IPv6 interface for multicast:" \ 80 "add net ff00::/8: gateway $1" 81 /usr/sbin/route -n add -interface -inet6 "ff00::/8" "$1" \ 82 >/dev/null 83 fi 84fi 85/usr/bin/rm -f /etc/svc/volatile/ifconfig.$$ 86 87# 88# Configure default IPv4 routers using the local "/etc/defaultrouter" 89# configuration file. The file can contain the hostnames or IP 90# addresses of one or more default routers. If hostnames are used, 91# each hostname must also be listed in the local "/etc/hosts" file 92# because NIS and NIS+ are not running at the time that this script is 93# run. Each router name or address is listed on a single line by 94# itself in the file. Anything else on that line after the router's 95# name or address is ignored. Lines that begin with "#" are 96# considered comments and ignored. 97# 98# The default routes listed in the "/etc/defaultrouter" file will 99# replace those added by the kernel during diskless booting. An 100# empty "/etc/defaultrouter" file will cause the default route 101# added by the kernel to be deleted. 102# 103# Note that the default router file is ignored if we received routes 104# from a DHCP server. Our policy is to always trust DHCP over local 105# administration. 106# 107smf_netstrategy 108 109if [ "$_INIT_NET_STRATEGY" = "dhcp" ] && \ 110 [ -n "`/sbin/dhcpinfo Router`" ]; then 111 defrouters=`/sbin/dhcpinfo Router` 112elif [ -f /etc/defaultrouter ]; then 113 defrouters=`/usr/bin/grep -v \^\# /etc/defaultrouter | \ 114 /usr/bin/awk '{print $1}'` 115 if [ -n "$defrouters" ]; then 116 # 117 # We want the default router(s) listed in 118 # /etc/defaultrouter to replace the one added from the 119 # BOOTPARAMS WHOAMI response but we must avoid flushing 120 # the last route between the running system and its 121 # /usr file system. 122 # 123 124 # First, remember the original route. 125 shift $# 126 set -- `/usr/bin/netstat -rn -f inet | \ 127 /usr/bin/grep '^default'` 128 route_IP="$2" 129 130 # 131 # Next, add those from /etc/defaultrouter. While doing 132 # this, if one of the routes we add is for the route 133 # previously added as a result of the BOOTPARAMS 134 # response, we will see a message of the form: 135 # "add net default: gateway a.b.c.d: entry exists" 136 # 137 do_delete=yes 138 for router in $defrouters; do 139 set -- `/usr/sbin/route -n add default \ 140 -gateway $router` 141 [ $? -ne 0 -a "x$5" = "x$route_IP:" ] \ 142 && do_delete=no 143 done 144 145 # 146 # Finally, delete the original default route unless it 147 # was also listed in the defaultrouter file. 148 # 149 if [ -n "$route_IP" -a $do_delete = yes ]; then 150 /usr/sbin/route -n delete default \ 151 -gateway $route_IP >/dev/null 152 fi 153 else 154 /usr/sbin/route -fn > /dev/null 155 fi 156else 157 defrouters= 158fi 159 160# 161# Use routeadm(1M) to configure forwarding and launch routing daemons 162# for IPv4 and IPv6 based on preset values. These settings only apply 163# to the global zone. For IPv4 dynamic routing, the system will default 164# to disabled if a default route was previously added via BOOTP, DHCP, 165# or the /etc/defaultrouter file. routeadm also starts in.ndpd. 166# 167if [ "$dynamic_routing" != "true" ] && [ -z "$defrouters" ]; then 168 # 169 # No default routes were setup by "route" command above. 170 # Check the kernel routing table for any other default 171 # routes. 172 # 173 /usr/bin/netstat -rn -f inet | \ 174 /usr/bin/grep default >/dev/null 2>&1 && defrouters=yes 175fi 176 177# 178# The routeadm/ipv4-routing-set property is true if the administrator 179# has run "routeadm -e/-d ipv4-routing". If not, we revert to the 180# appropriate defaults. We no longer run "routeadm -u" on every boot 181# however, as persistent daemon state is now controlled by SMF. 182# 183ipv4_routing_set=`/usr/bin/svcprop -p routeadm/ipv4-routing-set $SMF_FMRI` 184if [ -z "$defrouters" ]; then 185 # 186 # Set default value for ipv4-routing to enabled. If routeadm -e/-d 187 # has not yet been run by the administrator, we apply this default. 188 # The -b option is project-private and informs routeadm not 189 # to treat the enable as administrator-driven. 190 # 191 /usr/sbin/svccfg -s $SMF_FMRI \ 192 setprop routeadm/default-ipv4-routing = true 193 if [ "$ipv4_routing_set" = "false" ]; then 194 /sbin/routeadm -b -e ipv4-routing -u 195 fi 196else 197 # 198 # Default router(s) have been found, so ipv4-routing default value 199 # should be disabled. If routaedm -e/d has not yet been run by 200 # the administrator, we apply this default. The -b option is 201 # project-private and informs routeadm not to treat the disable as 202 # administrator-driven. 203 # 204 /usr/sbin/svccfg -s $SMF_FMRI \ 205 setprop routeadm/default-ipv4-routing = false 206 if [ "$ipv4_routing_set" = "false" ]; then 207 /sbin/routeadm -b -d ipv4-routing -u 208 fi 209fi 210 211# 212# Set 6to4 Relay Router communication support policy and, if applicable, 213# the destination Relay Router IPv4 address. See /etc/default/inetinit for 214# setting and further info on ACCEPT6TO4RELAY and RELAY6TO4ADDR. 215# If ACCEPT6TO4RELAY=NO, the default value in the kernel will 216# be used. 217# 218ACCEPT6TO4RELAY=`echo "$ACCEPT6TO4RELAY" | /usr/bin/tr '[A-Z]' '[a-z]'` 219if [ "$ACCEPT6TO4RELAY" = yes ]; then 220 if [ "$RELAY6TO4ADDR" ]; then 221 /usr/sbin/6to4relay -e -a $RELAY6TO4ADDR 222 else 223 /usr/sbin/6to4relay -e 224 fi 225fi 226 227# 228# Read /etc/inet/static_routes and add each route. 229# 230if [ -f /etc/inet/static_routes ]; then 231 echo "Adding persistent routes:" 232 /usr/bin/egrep -v "^(#|$)" /etc/inet/static_routes | while read line; do 233 /usr/sbin/route add $line 234 done 235fi 236 237# Clear exit status. 238exit $SMF_EXIT_OK 239