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# 29# This is third phase of TCP/IP startup/configuration. This script 30# runs after the NIS/NIS+ startup script. We run things here that may 31# depend on NIS/NIS+ maps. 32# 33 34. /lib/svc/share/smf_include.sh 35 36case "$1" in 37'start') 38 # 39 # In a shared-IP zone we need this service to be up, but all of the 40 # work it tries to do is irrelevant (and will actually lead to the 41 # service failing if we try to do it), so just bail out. 42 # In the global zone and exclusive-IP zones we proceed. 43 # 44 smf_configure_ip || exit 0 45 ;; # Fall through -- rest of script is the initialization code 46 47'stop') 48 exit 0 49 ;; 50 51*) 52 echo "Usage: $0 { start | stop }" 53 exit 1 54 ;; 55esac 56 57interface=$2 58 59# If boot variables are not set, set variables we use 60[ -z "$_INIT_UTS_NODENAME" ] && _INIT_UTS_NODENAME=`/usr/bin/uname -n` 61 62# 63# wait_nis 64# Wait up to 5 seconds for ypbind to obtain a binding. 65# 66wait_nis () 67{ 68 for i in 1 2 3 4 5; do 69 server=`/usr/bin/ypwhich 2>/dev/null` 70 [ $? -eq 0 -a -n "$server" ] && return 0 || sleep 1 71 done 72 return 1 73} 74 75# 76# This function takes two file names and the file mode as input. The two 77# files are compared for differences (using cmp(1)) and if different, the 78# second file is over written with the first. A chmod is done with the file 79# mode passed in. If the files are equal, the first file passed 80# in (the /tmp file) is deleted. 81# 82mv_file () 83{ 84 /usr/bin/cmp -s $1 $2 85 if [ $? -eq 1 ]; then 86 /usr/bin/mv $1 $2 87 # 88 # The umask during boot is configurable, which requires 89 # explicit setting of file permission modes when we 90 # create files. 91 # 92 /usr/bin/chmod $3 $2 93 else 94 /usr/bin/rm $1 95 fi 96} 97 98# 99# update_nss 100# This routine takes as a parameter, the name of the respective policy 101# to change in the nsswitch.conf (hosts or ipnodes) to update with dns. 102# 103update_nss () 104{ 105 policy=$1; 106 # Add dns to the nsswitch file, if it isn't already there. 107 /usr/bin/awk ' $1 ~ /^'${policy}':/ { 108 n = split($0, a); 109 newl = a[1]; 110 if ($0 !~ /dns/) { 111 printf("#%s # Commented out by DHCP\n", $0); 112 updated = 0; 113 for (i = 2; i <= n; i++) { 114 if (updated == 0 && index(a[i], "[") == 1) { 115 newl = newl" dns"; 116 updated++; 117 } 118 newl = newl" "a[i]; 119 } 120 if (updated == 0) { 121 newl = newl" dns"; 122 updated++; 123 } 124 if (updated != 0) 125 newl = newl" # Added by DHCP"; 126 else 127 newl = $0; 128 printf("%s\n", newl); 129 } else 130 printf("%s\n", $0); 131 } $1 !~ /^'${policy}':/ { printf("%s\n", $0); }' /etc/nsswitch.conf \ 132 >/tmp/nsswitch.conf.$$ 133 134 mv_file /tmp/nsswitch.conf.$$ /etc/nsswitch.conf 644 135} 136 137# 138# We now need to reset the netmask and broadcast address for our network 139# interfaces. Since this may result in a name service lookup, we want to 140# now wait for NIS to come up if we previously started it. 141# 142domain=`/usr/bin/domainname 2>/dev/null` 143 144[ -z "$domain" ] || [ ! -d /var/yp/binding/$domain ] || wait_nis || \ 145 echo "WARNING: Timed out waiting for NIS to come up" >& 2 146 147# 148# Re-set the netmask and broadcast addr for all IP interfaces. This ifconfig 149# is run here, after waiting for name services, so that "netmask +" will find 150# the netmask if it lives in a NIS map. The 'D' in -auD tells ifconfig NOT to 151# mess with the interface if it is under DHCP control 152# 153/usr/sbin/ifconfig -auD4 netmask + broadcast + 154 155# Uncomment these lines to print complete network interface configuration 156# echo "network interface configuration:" 157# /usr/sbin/ifconfig -a 158 159smf_netstrategy 160 161if [ "$_INIT_NET_STRATEGY" = "dhcp" ]; then 162 if [ -n "$interface" ]; then 163 dnsservers=`/sbin/dhcpinfo -i $interface DNSserv` 164 else 165 dnsservers=`/sbin/dhcpinfo DNSserv` 166 fi 167else 168 dnsservers="" 169fi 170 171if [ -n "$dnsservers" ]; then 172 # 173 # Go through /etc/resolv.conf and replace any existing 174 # domain or nameserver entries with new ones derived 175 # from DHCP. Note that it is important to preserve 176 # order of domain entries vs. search entries; the search 177 # entries are reserved for administrator customization 178 # and if placed after the domain entry will override it. 179 # See resolv.conf(4). 180 # 181 if [ ! -f /etc/resolv.conf ]; then 182 /usr/bin/touch /etc/resolv.conf 183 fi 184 if [ -n "$interface" ]; then 185 dnsdomain=`/sbin/dhcpinfo -i $interface DNSdmain` 186 else 187 dnsdomain=`/sbin/dhcpinfo DNSdmain` 188 fi 189 export dnsservers dnsdomain 190 /usr/bin/nawk </etc/resolv.conf >/tmp/resolv.conf.$$ ' 191 function writedomain() { 192 if (updated == 0) { 193 # Use only first domain, not a search list 194 split(ENVIRON["dnsdomain"], d) 195 if(length(d[1]) != 0) 196 printf("domain %s\n", d[1]) 197 } 198 ++updated 199 } 200 $1 == "domain" { writedomain(); next } 201 $1 != "nameserver" { print $0 } 202 END { 203 writedomain() 204 n = split(ENVIRON["dnsservers"], s) 205 for (i = 1; i <= n; ++i) 206 printf("nameserver %s\n", s[i]) 207 }' 208 unset dnsservers dnsdomain 209 mv_file /tmp/resolv.conf.$$ /etc/resolv.conf 644 210 # 211 # Add dns to the nsswitch file, if it isn't already there. 212 # 213 update_nss hosts 214 update_nss ipnodes 215 216elif /usr/bin/grep '# Added by DHCP$' /etc/nsswitch.conf >/dev/null 2>&1; then 217 218 # If we added DNS to the hosts and ipnodes policy in the nsswitch, 219 # remove it. 220 /usr/bin/sed \ 221 -e '/# Added by DHCP$/d' \ 222 -e 's/^\(#hosts:\)\(.*[^#]\)\(#.*\)$/hosts: \2/' \ 223 -e 's/^\(#ipnodes:\)\(.*[^#]\)\(#.*\)$/ipnodes: \2/' \ 224 /etc/nsswitch.conf >/tmp/nsswitch.conf.$$ 225 226 mv_file /tmp/nsswitch.conf.$$ /etc/nsswitch.conf 644 227fi 228 229# Clean up any old DHCP-added entries (except loopback) in the hosts file. 230if /usr/bin/grep '# Added by DHCP$' /etc/inet/hosts >/dev/null 2>&1; then 231 /usr/bin/nawk '{ 232 if (index($0, "# Added by DHCP") == 0 || 233 $1 == "127.0.0.1" || $1 == "::1") { 234 print $0 235 } 236 }' /etc/inet/hosts > /tmp/hosts.$$ 237 mv_file /tmp/hosts.$$ /etc/inet/hosts 444 238fi 239 240if [ -z "$SMF_FMRI" ] || [ "$SMF_FMRI" = "svc:/network/physical:nwam" ]; then 241 exit 0 242fi 243 244# 245# Load the IPQoS configuration. 246# This is backgrounded so that any remote hostname lookups it performs 247# don't unduely delay startup. Any messages go via syslog. 248# 249 250if [ -f /usr/sbin/ipqosconf -a -f /etc/inet/ipqosinit.conf ]; then 251 /usr/sbin/ipqosconf -s -a /etc/inet/ipqosinit.conf & 252fi 253 254# 255# Add a static route for multicast packets out our default interface. 256# The default interface is the interface that corresponds to the node name. 257# Run in background subshell to avoid waiting for name service. 258# 259 260( 261if [ "$_INIT_NET_STRATEGY" = "dhcp" ]; then 262 mcastif=`/sbin/dhcpinfo Yiaddr` || mcastif=$_INIT_UTS_NODENAME 263else 264 mcastif=$_INIT_UTS_NODENAME 265fi 266 267echo "Setting default IPv4 interface for multicast:" \ 268 "add net 224.0/4: gateway $mcastif" 269 270/usr/sbin/route -n add -interface 224.0/4 -gateway "$mcastif" >/dev/null 271) & 272