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 (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. 24# Copyright (c) 2021 H. William Welliver 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 is 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 84# 85# See if static routes were created by install. If so, they were created 86# under /etc/svc/volatile. Copy them into their proper place. 87# 88if [ -f /etc/svc/volatile/etc/inet/static_routes ]; then 89 echo "Installing persistent routes" 90 if [ -f /etc/inet/static_routes ]; then 91 cat /etc/svc/volatile/etc/inet/static_routes | grep -v '^#' \ 92 >> /etc/inet/static_routes 93 else 94 cp /etc/svc/volatile/etc/inet/static_routes \ 95 /etc/inet/static_routes 96 fi 97 /usr/bin/rm /etc/svc/volatile/etc/inet/static_routes 98 99fi 100 101# 102# Read /etc/inet/static_routes and add each link-local route. 103# 104if [ -f /etc/inet/static_routes ]; then 105 echo "Adding persistent link-local routes:" 106 /usr/bin/egrep -v "^(#|$)" /etc/inet/static_routes \ 107 | /usr/bin/grep -E -- "-interface |-iface " | while read line; do 108 /usr/sbin/route add $line 109 done 110fi 111 112if [ "$_INIT_NET_STRATEGY" = "dhcp" ] && \ 113 [ -n "`/sbin/dhcpinfo Router`" ]; then 114 defrouters=`/sbin/dhcpinfo Router` 115elif [ -f /etc/defaultrouter ]; then 116 defrouters=`/usr/bin/grep -v \^\# /etc/defaultrouter | \ 117 /usr/bin/awk '{print $1}'` 118 if [ -n "$defrouters" ]; then 119 # 120 # We want the default router(s) listed in 121 # /etc/defaultrouter to replace the one added from the 122 # BOOTPARAMS WHOAMI response but we must avoid flushing 123 # the last route between the running system and its 124 # /usr file system. 125 # 126 127 # First, remember the original route. 128 shift $# 129 set -- `/usr/bin/netstat -rn -f inet | \ 130 /usr/bin/grep '^default'` 131 route_IP="$2" 132 133 # 134 # Next, add those from /etc/defaultrouter. While doing 135 # this, if one of the routes we add is for the route 136 # previously added as a result of the BOOTPARAMS 137 # response, we will see a message of the form: 138 # "add net default: gateway a.b.c.d: entry exists" 139 # 140 do_delete=yes 141 for router in $defrouters; do 142 route_added=`/usr/sbin/route -n add default \ 143 -gateway $router` 144 res=$? 145 set -- $route_added 146 [ $res -ne 0 -a "$5" = "$route_IP:" ] && do_delete=no 147 done 148 149 # 150 # Finally, delete the original default route unless it 151 # was also listed in the defaultrouter file. 152 # 153 if [ -n "$route_IP" -a $do_delete = yes ]; then 154 /usr/sbin/route -n delete default \ 155 -gateway $route_IP >/dev/null 156 fi 157 else 158 /usr/sbin/route -fn > /dev/null 159 fi 160else 161 defrouters= 162fi 163 164# 165# Use routeadm(1M) to configure forwarding and launch routing daemons 166# for IPv4 and IPv6 based on preset values. These settings only apply 167# to the global zone. For IPv4 dynamic routing, the system will default 168# to disabled if a default route was previously added via BOOTP, DHCP, 169# or the /etc/defaultrouter file. routeadm also starts in.ndpd. 170# 171if [ "$dynamic_routing" != "true" ] && [ -z "$defrouters" ]; then 172 # 173 # No default routes were setup by "route" command above. 174 # Check the kernel routing table for any other default 175 # routes. 176 # 177 /usr/bin/netstat -rn -f inet | \ 178 /usr/bin/grep default >/dev/null 2>&1 && defrouters=yes 179fi 180 181# 182# The routeadm/ipv4-routing-set property is true if the administrator 183# has run "routeadm -e/-d ipv4-routing". If not, we revert to the 184# appropriate defaults. We no longer run "routeadm -u" on every boot 185# however, as persistent daemon state is now controlled by SMF. 186# 187ipv4_routing_set=`/usr/bin/svcprop -p routeadm/ipv4-routing-set $SMF_FMRI` 188if [ -z "$defrouters" ]; then 189 # 190 # Set default value for ipv4-routing to enabled. If routeadm -e/-d 191 # has not yet been run by the administrator, we apply this default. 192 # The -b option is project-private and informs routeadm not 193 # to treat the enable as administrator-driven. 194 # 195 /usr/sbin/svccfg -s $SMF_FMRI \ 196 setprop routeadm/default-ipv4-routing = true 197 if [ "$ipv4_routing_set" = "false" ]; then 198 /sbin/routeadm -b -e ipv4-routing -u 199 fi 200else 201 # 202 # Default router(s) have been found, so ipv4-routing default value 203 # should be disabled. If routaedm -e/d has not yet been run by 204 # the administrator, we apply this default. The -b option is 205 # project-private and informs routeadm not to treat the disable as 206 # administrator-driven. 207 # 208 /usr/sbin/svccfg -s $SMF_FMRI \ 209 setprop routeadm/default-ipv4-routing = false 210 if [ "$ipv4_routing_set" = "false" ]; then 211 /sbin/routeadm -b -d ipv4-routing -u 212 fi 213fi 214 215# 216# Read /etc/inet/static_routes and add each non-link-local route. 217# 218if [ -f /etc/inet/static_routes ]; then 219 echo "Adding persistent routes:" 220 /usr/bin/egrep -v "^(#|$)" /etc/inet/static_routes \ 221 | /usr/bin/grep -v -E -- "-interface |-iface " | while read line; do 222 /usr/sbin/route add $line 223 done 224fi 225 226# Clear exit status. 227exit $SMF_EXIT_OK 228