client/scripts/macos

   1 #!/bin/sh
   2 #
   3 # $Id: macos,v 1.4 2011/09/20 16:59:54 sar Exp $
   4 #
   5 # automous run of this script will commit the DNS setting
   6 #
   7
   8 if [ -x /usr/bin/logger ]; then
   9         LOGGER="/usr/bin/logger -s -p user.notice -t dhclient"
  10 else
  11         LOGGER=echo
  12 fi
  13
  14 to_commit="yes"
  15
  16 make_resolv_conf() {
  17   to_commit="no"
  18   if [ "x${new_dhcp6_name_servers}" != x ]; then
  19     ( cat /dev/null > /var/run/resolv.conf.dhclient6 )
  20     exit_status=$?
  21     if [ $exit_status -ne 0 ]; then
  22       $LOGGER "Unable to create /var/run/resolv.conf.dhclient6: Error $exit_status"
  23     else
  24       if [ "x${new_dhcp6_domain_search}" != x ]; then
  25         ( echo search ${new_dhcp6_domain_search} >> /var/run/resolv.conf.dhclient6 )
  26         exit_status=$?
  27       fi
  28       for nameserver in ${new_dhcp6_name_servers} ; do
  29         if [ $exit_status -ne 0 ]; then
  30           break
  31         fi
  32         # If the nameserver has a link-local address
  33         # add a <zone_id> (interface name) to it.
  34         case $nameserver in
  35             fe80:*) zone_id="%$interface";;
  36             FE80:*) zone_id="%$interface";;
  37            *)      zone_id="";;
  38         esac
  39         ( echo nameserver ${nameserver}$zone_id >> /etc/resolv.conf.dhclient6 )
  40         exit_status=$?
  41       done
  42
  43       if [ $exit_status -eq 0 ]; then
  44         to_commit="force"
  45         commit_resolv_conf
  46       fi
  47     fi
  48   fi
  49 }
  50
  51 # Try to commit /var/run/resolv.conf.dhclient6 contents to
  52 # System Configuration framework's Dynamic Store.
  53 # Note this will be cleared by the next location change
  54 # or preempted by IPv4.
  55 #
  56 # The System Configuration agent "IPMonitor" gets the DNS configuration
  57 # from the IPv4 or IPv6 primary service in the Dynamic Store
  58 # (managed by configd).
  59 commit_resolv_conf() {
  60   if [ -f /var/run/resolv.conf.dhclient6 ]; then
  61     if [ -x /usr/sbin/scutil ]; then
  62       serviceID=`echo show State:/Network/Global/IPv6 | \
  63           /usr/sbin/scutil | \
  64           awk '/PrimaryService/ { print $3 }'`
  65       echo $serviceID
  66       if [ x$serviceID = x ]; then
  67         $LOGGER "Can't find the primary IPv6 service"
  68       else
  69         tmp=`mktemp SC_dhclient6.XXXXXXXXXX`
  70         echo list | /usr/sbin/scutil > /tmp/$tmp
  71         grep -q State:/Network/Service/$serviceID/DNS /tmp/$tmp
  72         grep_status=$?
  73         if [ $grep_status -eq 0 ]; then
  74           $LOGGER "DNS service already set in primary IPv6 service"
  75           rm /tmp/$tmp
  76         else
  77           res=/var/run/resolv.conf.dhclient6
  78           cp /dev/null /tmp/$tmp
  79           grep -q '^nameserver' $res
  80           grep_status=$?
  81           if [ $grep_status -eq 0 ]; then
  82             echo d.add ServerAddresses '*' \
  83                  `awk 'BEGIN { n="" } \
  84                        /^nameserver/ { n=n " " $2 } \
  85                        END { print n}' < $res` >> /tmp/$tmp
  86           fi
  87           grep -q '^search' $res
  88           grep_status=$?
  89           if [ $grep_status -eq 0 ]; then
  90             echo d.add SearchDomains '*' \
  91                  `sed 's/^search//' < $res` >> /tmp/$tmp
  92           fi
  93           echo set State:/Network/Service/$serviceID/DNS >> /tmp/$tmp
  94           echo quit >> /tmp/$tmp
  95           cat /tmp/$tmp
  96           /usr/sbin/scutil < /tmp/$tmp
  97           rm /tmp/$tmp
  98         fi
  99       fi
 100     else
 101       $LOGGER "Can't find SystemConfiguration tools."
 102     fi
 103   else
 104     if [ $to_commit = force ]; then
 105       $LOGGER "Can't find /var/run/resolv.conf.dhclient6"
 106     fi
 107   fi
 108   to_commit="done"
 109 }
 110
 111 # Must be used on exit.   Invokes the local dhcp client exit hooks, if any.
 112 exit_with_hooks() {
 113   exit_status=$1
 114   if [ -f /etc/dhclient-exit-hooks ]; then
 115     . /etc/dhclient-exit-hooks
 116   fi
 117 # probably should do something with exit status of the local script
 118   exit $exit_status
 119 }
 120
 121 # Invoke the local dhcp client enter hooks, if they exist.
 122 if [ -f /etc/dhclient-enter-hooks ]; then
 123   exit_status=0
 124   . /etc/dhclient-enter-hooks
 125   # allow the local script to abort processing of this state
 126   # local script must set exit_status variable to nonzero.
 127   if [ $exit_status -ne 0 ]; then
 128     exit $exit_status
 129   fi
 130 fi
 131
 132 if [ x$reason = xMEDIUM ]; then
 133   eval "ifconfig $interface $medium"
 134   eval "ifconfig $interface inet -alias 0.0.0.0 $medium" >/dev/null 2>&1
 135   sleep 1
 136   exit_with_hooks 0
 137 fi
 138
 139 ###
 140 ### DHCPv6 Handlers
 141 ###
 142
 143 if [ x$reason = xPREINIT6 ]; then
 144   # Ensure interface is up.
 145   ifconfig ${interface} up
 146
 147   # We need to give the kernel some time to active interface
 148   interface_up_wait_time=5
 149   for i in $(seq 0 ${interface_up_wait_time})
 150   do
 151       ifconfig ${interface} | grep inactive &> /dev/null
 152       if [ $? -ne 0 ]; then
 153           break;
 154       fi
 155       sleep 1
 156   done
 157
 158   # XXX: Remove any stale addresses from aborted clients.
 159
 160   # Wait for duplicate address detection for this interface if the
 161   # --dad-wait-time parameter has been specified and is greater than
 162   # zero.
 163   if [ ${dad_wait_time} -gt 0 ]; then
 164       # Check if any IPv6 address on this interface is marked as
 165       # tentative.
 166       ifconfig ${interface} | grep inet6 | grep tentative \
 167           &> /dev/null
 168       if [ $? -eq 0 ]; then
 169           # Wait for duplicate address detection to complete or for
 170           # the timeout specified as --dad-wait-time.
 171           for i in $(seq 0 $dad_wait_time)
 172           do
 173               # We're going to poll for the tentative flag every second.
 174               sleep 1
 175               ifconfig ${interface} | grep inet6 | grep tentative \
 176                   &> /dev/null
 177               if [ $? -ne 0 ]; then
 178                   break;
 179               fi
 180           done
 181       fi
 182   fi
 183
 184   exit_with_hooks 0
 185 fi
 186
 187 if [ x${old_ip6_prefix} != x ] || [ x${new_ip6_prefix} != x ]; then
 188     echo Prefix $reason old=${old_ip6_prefix} new=${new_ip6_prefix}
 189
 190     exit_with_hooks 0
 191 fi
 192
 193 if [ x$reason = xBOUND6 ]; then
 194   if [ x${new_ip6_address} = x ] || [ x${new_ip6_prefixlen} = x ]; then
 195     exit_with_hooks 2;
 196   fi
 197
 198   ifconfig ${interface} inet6 ${new_ip6_address}/${new_ip6_prefixlen} alias
 199
 200   # Check for nameserver options.
 201   make_resolv_conf
 202
 203   exit_with_hooks 0
 204 fi
 205
 206 if [ x$reason = xRENEW6 ] || [ x$reason = xREBIND6 ]; then
 207   # Make sure nothing has moved around on us.
 208
 209   # Nameservers/domains/etc.
 210   if [ "x${new_dhcp6_name_servers}" != "x${old_dhcp6_name_servers}" ] ||
 211      [ "x${new_dhcp6_domain_search}" != "x${old_dhcp6_domain_search}" ]; then
 212     make_resolv_conf
 213   fi
 214
 215   exit_with_hooks 0
 216 fi
 217
 218 if [ x$reason = xDEPREF6 ]; then
 219   if [ x${new_ip6_address} = x ]; then
 220     exit_with_hooks 2;
 221   fi
 222
 223   ifconfig ${interface} inet6 ${new_ip6_address} deprecated
 224
 225   exit_with_hooks 0
 226 fi
 227
 228 if [ x$reason = xEXPIRE6 -o x$reason = xRELEASE6 -o x$reason = xSTOP6 ]; then
 229   if [ x${old_ip6_address} = x ] || [ x${old_ip6_prefixlen} = x ]; then
 230     exit_with_hooks 2;
 231   fi
 232
 233   ifconfig ${interface} inet6 ${old_ip6_address}/${old_ip6_prefixlen} -alias
 234
 235   exit_with_hooks 0
 236 fi
 237
 238 if [ $to_commit = yes ]; then
 239   commit_resolv_conf
 240 fi
 241
 242 exit_with_hooks 0