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, Version 1.0 only 7# (the "License"). You may not use this file except in compliance 8# with the License. 9# 10# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 11# or http://www.opensolaris.org/os/licensing. 12# See the License for the specific language governing permissions 13# and limitations under the License. 14# 15# When distributing Covered Code, include this CDDL HEADER in each 16# file and include the License file at usr/src/OPENSOLARIS.LICENSE. 17# If applicable, add the following below this CDDL HEADER, with the 18# fields enclosed by brackets "[]" replaced with your own identifying 19# information: Portions Copyright [yyyy] [name of copyright owner] 20# 21# CDDL HEADER END 22# 23# 24# Copyright 2005 Sun Microsystems, Inc. All rights reserved. 25# Use is subject to license terms. 26# 27#ident "%Z%%M% %I% %E% SMI" 28 29# 30# This is third phase of TCP/IP startup/configuration. This script 31# runs after the NIS/NIS+ startup script. We run things here that may 32# depend on NIS/NIS+ maps. 33# 34 35case "$1" in 36'start') 37 # 38 # In a zone we need this service to be up, but all of the work 39 # it tries to do is irrelevant (and will actually lead to the service 40 # failing if we try to do it), so just bail out. 41 # 42 if [ `/sbin/zonename` != "global" ]; then 43 exit 0 44 fi 45 ;; # Fall through -- rest of script is the initialization code 46 47'stop') 48 exit 0 49 ;; 50 51*) 52 echo "Usage: $0 { start | stop }" 53 exit 1 54 ;; 55esac 56 57. /lib/svc/share/smf_include.sh 58 59# If boot variables are not set, set variables we use 60[ -z "$_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# update_files 139# This routine takes as a parameter, the name of the respective file 140# (hosts or ipnodes) to update with the new host name and IP address. 141# 142update_files () 143{ 144 filename=$1; 145 # Delete any old lines added by dhcp. 146 /usr/bin/sed -e '/# Added by DHCP$/d' /etc/inet/${filename} \ 147 > /tmp/${filename}_clear.$$ 148 149 shift $# # Clear $0-9 first in case grep fails 150 set -- `/usr/bin/grep "^[ ]*$ipaddr[ ]" \ 151 /tmp/${filename}_clear.$$ 2>/dev/null` 152 153 if [ $# -gt 0 ]; then 154 # 155 # IP address is already in the file. Ensure the 156 # associated hostname is the same as the Hostname 157 # property returned by the DHCP server. 158 # 159 /usr/bin/sed -e "/^[ ]*${ipaddr}[ ]/d" \ 160 /tmp/${filename}_clear.$$ >/tmp/${filename}.$$ 161 echo "${ipaddr}\t${hostname}\t# Added by DHCP" \ 162 >>/tmp/${filename}.$$ 163 else 164 # 165 # IP address is missing from the respective file. Now check 166 # to see if the hostname is present with a different IP. 167 # 168 shift $# # Clear $0-9 in case grep fails 169 set -- `/usr/bin/grep -s -v '^#' /tmp/${filename}_clear.$$ | \ 170 /usr/bin/egrep "[ ]${hostname}([ ]|$)"` 171 172 if [ $# -gt 0 ]; then 173 # 174 # Hostname is present in the file. Rewrite this line 175 # to have the new IP address and the DHCP comment. 176 # 177 /usr/bin/sed -e "/^[ ]*${1}[ ]/d" \ 178 /tmp/${filename}_clear.$$ >/tmp/${filename}.$$ 179 180 shift # Shift off $1 (the old IP) 181 182 echo "$ipaddr $*\c" | /usr/bin/tr ' ' '\t' \ 183 >>/tmp/${filename}.$$ 184 185 echo "\t# Added by DHCP" >>/tmp/${filename}.$$ 186 else 187 # 188 # Hostname is not present in the named file. 189 # Add a new line for the host at the end of 190 # the new respective file. 191 # 192 /usr/bin/mv /tmp/${filename}_clear.$$ \ 193 /tmp/${filename}.$$ 194 echo "${ipaddr}\t${hostname}\t# Added by DHCP" \ 195 >>/tmp/${filename}.$$ 196 fi 197 fi 198 199 /usr/bin/rm -f /tmp/${filename}_clear.$$ 200 mv_file /tmp/${filename}.$$ /etc/inet/${filename} 444 201} 202 203# 204# We now need to reset the netmask and broadcast address for our network 205# interfaces. Since this may result in a name service lookup, we want to 206# now wait for NIS to come up if we previously started it. 207# 208domain=`/usr/bin/domainname 2>/dev/null` 209 210[ -z "$domain" ] || [ ! -d /var/yp/binding/$domain ] || wait_nis || \ 211 echo "WARNING: Timed out waiting for NIS to come up" >& 2 212 213# 214# Re-set the netmask and broadcast addr for all IP interfaces. This ifconfig 215# is run here, after waiting for name services, so that "netmask +" will find 216# the netmask if it lives in a NIS map. The 'D' in -auD tells ifconfig NOT to 217# mess with the interface if it is under DHCP control 218# 219/usr/sbin/ifconfig -auD4 netmask + broadcast + 220 221# Uncomment these lines to print complete network interface configuration 222# echo "network interface configuration:" 223# /usr/sbin/ifconfig -a 224 225smf_netstrategy 226 227if [ "$_INIT_NET_STRATEGY" = "dhcp" ]; then 228 dnsservers=`/sbin/dhcpinfo DNSserv` 229else 230 dnsservers="" 231fi 232 233if [ -n "$dnsservers" ]; then 234 # 235 # Go through /etc/resolv.conf and replace any existing 236 # domain or nameserver entries with new ones derived 237 # from DHCP. Note that it is important to preserve 238 # order of domain entries vs. search entries; the search 239 # entries are reserved for administrator customization 240 # and if placed after the domain entry will override it. 241 # See resolv.conf(4). 242 # 243 if [ ! -f /etc/resolv.conf ]; then 244 /usr/bin/touch /etc/resolv.conf 245 fi 246 dnsdomain=`/sbin/dhcpinfo DNSdmain` 247 export dnsservers dnsdomain 248 /usr/bin/nawk </etc/resolv.conf >/tmp/resolv.conf.$$ ' 249 function writedomain() { 250 if (updated == 0) { 251 # Use only first domain, not a search list 252 split(ENVIRON["dnsdomain"], d) 253 if(length(d[1]) != 0) 254 printf("domain %s\n", d[1]) 255 } 256 ++updated 257 } 258 $1 == "domain" { writedomain(); next } 259 $1 != "nameserver" { print $0 } 260 END { 261 writedomain() 262 n = split(ENVIRON["dnsservers"], s) 263 for (i = 1; i <= n; ++i) 264 printf("nameserver %s\n", s[i]) 265 }' 266 unset dnsservers dnsdomain 267 mv_file /tmp/resolv.conf.$$ /etc/resolv.conf 644 268 # 269 # Add dns to the nsswitch file, if it isn't already there. 270 # 271 update_nss hosts 272 update_nss ipnodes 273 274elif /usr/bin/grep '# Added by DHCP$' /etc/nsswitch.conf >/dev/null 2>&1; then 275 276 # If we added DNS to the hosts and ipnodes policy in the nsswitch, 277 # remove it. 278 /usr/bin/sed \ 279 -e '/# Added by DHCP$/d' \ 280 -e 's/^\(#hosts:\)\(.*[^#]\)\(#.*\)$/hosts: \2/' \ 281 -e 's/^\(#ipnodes:\)\(.*[^#]\)\(#.*\)$/ipnodes: \2/' \ 282 /etc/nsswitch.conf >/tmp/nsswitch.conf.$$ 283 284 mv_file /tmp/nsswitch.conf.$$ /etc/nsswitch.conf 644 285fi 286 287if [ "$_INIT_NET_STRATEGY" = "dhcp" ]; then 288 289 hostname=`/usr/bin/uname -n` 290 ipaddr=`/sbin/dhcpinfo Yiaddr` 291 update_files hosts 292 update_files ipnodes 293 294else 295 # We're not using a dhcp strategy, so host entries added by 296 # DHCP should be removed from /etc/inet/hosts and /etc/inet/ipnodes. 297 298 if /usr/bin/grep '# Added by DHCP$' /etc/inet/hosts >/dev/null 2>&1; 299 then 300 /usr/bin/sed -e '/# Added by DHCP$/d' \ 301 /etc/inet/hosts > /tmp/hosts.$$ 302 mv_file /tmp/hosts.$$ /etc/inet/hosts 444 303 fi 304 305 if /usr/bin/grep '# Added by DHCP$' /etc/inet/ipnodes >/dev/null 2>&1; 306 then 307 /usr/bin/sed -e '/# Added by DHCP$/d' \ 308 /etc/inet/ipnodes > /tmp/ipnodes.$$ 309 mv_file /tmp/ipnodes.$$ /etc/inet/ipnodes 444 310 fi 311fi 312 313# 314# Load the IPQoS configuration. 315# This is backgrounded so that any remote hostname lookups it performs 316# don't unduely delay startup. Any messages go via syslog. 317# 318 319if [ -f /usr/sbin/ipqosconf -a -f /etc/inet/ipqosinit.conf ]; then 320 /usr/sbin/ipqosconf -s -a /etc/inet/ipqosinit.conf & 321fi 322 323# 324# Add a static route for multicast packets out our default interface. 325# The default interface is the interface that corresponds to the node name. 326# Run in background subshell to avoid waiting for name service. 327# 328 329( 330if [ "$_INIT_NET_STRATEGY" = "dhcp" ]; then 331 mcastif=`/sbin/dhcpinfo Yiaddr` || mcastif=$_INIT_UTS_NODENAME 332else 333 mcastif=$_INIT_UTS_NODENAME 334fi 335 336echo "Setting default IPv4 interface for multicast:" \ 337 "add net 224.0/4: gateway $mcastif" 338 339/usr/sbin/route -n add -interface 224.0/4 -gateway "$mcastif" >/dev/null 340) & 341