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. /lib/svc/share/net_include.sh 36 37case "$1" in 38'start') 39 # 40 # In a shared-IP zone we need this service to be up, but all of the 41 # work it tries to do is irrelevant (and will actually lead to the 42 # service failing if we try to do it), so just bail out. 43 # In the global zone and exclusive-IP zones we proceed. 44 # 45 smf_configure_ip || exit 0 46 ;; # Fall through -- rest of script is the initialization code 47 48'stop') 49 exit 0 50 ;; 51 52*) 53 echo "Usage: $0 { start | stop }" 54 exit 1 55 ;; 56esac 57 58interface=$2 59 60# If boot variables are not set, set variables we use 61[ -z "$_INIT_UTS_NODENAME" ] && _INIT_UTS_NODENAME=`/usr/bin/uname -n` 62 63# 64# wait_nis 65# Wait up to 5 seconds for ypbind to obtain a binding. 66# 67wait_nis () 68{ 69 for i in 1 2 3 4 5; do 70 server=`/usr/bin/ypwhich 2>/dev/null` 71 [ $? -eq 0 -a -n "$server" ] && return 0 || sleep 1 72 done 73 return 1 74} 75 76# 77# This function takes two file names and the file mode as input. The two 78# files are compared for differences (using cmp(1)) and if different, the 79# second file is over written with the first. A chmod is done with the file 80# mode passed in. If the files are equal, the first file passed 81# in (the /tmp file) is deleted. 82# 83mv_file () 84{ 85 /usr/bin/cmp -s $1 $2 86 if [ $? -eq 1 ]; then 87 /usr/bin/mv $1 $2 88 # 89 # The umask during boot is configurable, which requires 90 # explicit setting of file permission modes when we 91 # create files. 92 # 93 /usr/bin/chmod $3 $2 94 else 95 /usr/bin/rm $1 96 fi 97} 98 99# 100# update_nss 101# This routine takes as a parameter, the name of the respective policy 102# to change in the nsswitch.conf (hosts or ipnodes) to update with dns. 103# 104update_nss () 105{ 106 policy=$1; 107 # Add dns to the nsswitch file, if it isn't already there. 108 /usr/bin/awk ' $1 ~ /^'${policy}':/ { 109 n = split($0, a); 110 newl = a[1]; 111 if ($0 !~ /dns/) { 112 printf("#%s # Commented out by DHCP\n", $0); 113 updated = 0; 114 for (i = 2; i <= n; i++) { 115 if (updated == 0 && index(a[i], "[") == 1) { 116 newl = newl" dns"; 117 updated++; 118 } 119 newl = newl" "a[i]; 120 } 121 if (updated == 0) { 122 newl = newl" dns"; 123 updated++; 124 } 125 if (updated != 0) 126 newl = newl" # Added by DHCP"; 127 else 128 newl = $0; 129 printf("%s\n", newl); 130 } else 131 printf("%s\n", $0); 132 } $1 !~ /^'${policy}':/ { printf("%s\n", $0); }' /etc/nsswitch.conf \ 133 >/tmp/nsswitch.conf.$$ 134 135 mv_file /tmp/nsswitch.conf.$$ /etc/nsswitch.conf 644 136} 137 138# 139# We now need to reset the netmask and broadcast address for our network 140# interfaces. Since this may result in a name service lookup, we want to 141# now wait for NIS to come up if we previously started it. 142# 143domain=`/usr/bin/domainname 2>/dev/null` 144 145[ -z "$domain" ] || [ ! -d /var/yp/binding/$domain ] || wait_nis || \ 146 echo "WARNING: Timed out waiting for NIS to come up" >& 2 147 148# 149# Re-set the netmask and broadcast addr for all IP interfaces. This ifconfig 150# is run here, after waiting for name services, so that "netmask +" will find 151# the netmask if it lives in a NIS map. The 'D' in -auD tells ifconfig NOT to 152# mess with the interface if it is under DHCP control 153# 154/usr/sbin/ifconfig -auD4 netmask + broadcast + 155 156# Uncomment these lines to print complete network interface configuration 157# echo "network interface configuration:" 158# /usr/sbin/ifconfig -a 159 160smf_netstrategy 161 162if [ "$_INIT_NET_STRATEGY" = "dhcp" ]; then 163 if [ -n "$interface" ]; then 164 dnsservers=`/sbin/dhcpinfo -i $interface DNSserv` 165 else 166 dnsservers=`/sbin/dhcpinfo DNSserv` 167 fi 168else 169 dnsservers="" 170fi 171 172if [ -n "$dnsservers" ]; then 173 # 174 # Go through /etc/resolv.conf and replace any existing 175 # domain or nameserver entries with new ones derived 176 # from DHCP. Note that it is important to preserve 177 # order of domain entries vs. search entries; the search 178 # entries are reserved for administrator customization 179 # and if placed after the domain entry will override it. 180 # See resolv.conf(4). 181 # 182 if [ ! -f /etc/resolv.conf ]; then 183 /usr/bin/touch /etc/resolv.conf 184 fi 185 if [ -n "$interface" ]; then 186 dnsdomain=`/sbin/dhcpinfo -i $interface DNSdmain` 187 else 188 dnsdomain=`/sbin/dhcpinfo DNSdmain` 189 fi 190 export dnsservers dnsdomain 191 /usr/bin/nawk </etc/resolv.conf >/tmp/resolv.conf.$$ ' 192 function writedomain() { 193 if (updated == 0) { 194 # Use only first domain, not a search list 195 split(ENVIRON["dnsdomain"], d) 196 if(length(d[1]) != 0) 197 printf("domain %s\n", d[1]) 198 } 199 ++updated 200 } 201 $1 == "domain" { writedomain(); next } 202 $1 != "nameserver" { print $0 } 203 END { 204 writedomain() 205 n = split(ENVIRON["dnsservers"], s) 206 for (i = 1; i <= n; ++i) 207 printf("nameserver %s\n", s[i]) 208 }' 209 unset dnsservers dnsdomain 210 mv_file /tmp/resolv.conf.$$ /etc/resolv.conf 644 211 # 212 # Add dns to the nsswitch file, if it isn't already there. 213 # 214 update_nss hosts 215 update_nss ipnodes 216 217elif /usr/bin/grep '# Added by DHCP$' /etc/nsswitch.conf >/dev/null 2>&1; then 218 219 # If we added DNS to the hosts and ipnodes policy in the nsswitch, 220 # remove it. 221 /usr/bin/sed \ 222 -e '/# Added by DHCP$/d' \ 223 -e 's/^\(#hosts:\)\(.*[^#]\)\(#.*\)$/hosts: \2/' \ 224 -e 's/^\(#ipnodes:\)\(.*[^#]\)\(#.*\)$/ipnodes: \2/' \ 225 /etc/nsswitch.conf >/tmp/nsswitch.conf.$$ 226 227 mv_file /tmp/nsswitch.conf.$$ /etc/nsswitch.conf 644 228fi 229 230# Clean up any old DHCP-added entries (except loopback) in the hosts file. 231if /usr/bin/grep '# Added by DHCP$' /etc/inet/hosts >/dev/null 2>&1; then 232 /usr/bin/nawk '{ 233 if (index($0, "# Added by DHCP") == 0 || 234 $1 == "127.0.0.1" || $1 == "::1") { 235 print $0 236 } 237 }' /etc/inet/hosts > /tmp/hosts.$$ 238 mv_file /tmp/hosts.$$ /etc/inet/hosts 444 239fi 240 241# 242# Add a static route for multicast packets out our default interface. 243# The default interface is the interface that corresponds to the node name. 244# Run in background subshell to avoid waiting for name service. 245# 246 247( 248if [ "$_INIT_NET_STRATEGY" = "dhcp" ]; then 249 mcastif=`/sbin/dhcpinfo Yiaddr` || mcastif=$_INIT_UTS_NODENAME 250else 251 mcastif=$_INIT_UTS_NODENAME 252fi 253 254echo "Setting default IPv4 interface for multicast:" \ 255 "add net 224.0/4: gateway $mcastif" 256 257/usr/sbin/route -n add -interface 224.0/4 -gateway "$mcastif" >/dev/null 258) & 259 260# 261# NWAM-triggered interface changes may necessitate updating IPv6 multicast 262# route. 263# 264update_v6_multicast_route 265 266if [ -z "$SMF_FMRI" ] || [ "$SMF_FMRI" = "svc:/network/physical:nwam" ]; then 267 exit 0 268fi 269 270# 271# Load the IPQoS configuration. 272# This is backgrounded so that any remote hostname lookups it performs 273# don't unduely delay startup. Any messages go via syslog. 274# 275 276if [ -f /usr/sbin/ipqosconf -a -f /etc/inet/ipqosinit.conf ]; then 277 /usr/sbin/ipqosconf -s -a /etc/inet/ipqosinit.conf & 278fi 279