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dhcp 4.1 r7

    1: #!/bin/sh
    2: #
    3: # $Id: macos,v 1.1.1.1 2012/10/09 09:06:54 misho 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 ${interface} up
  146: 
  147:   # XXX: Remove any stale addresses from aborted clients.
  148: 
  149:   exit_with_hooks 0
  150: fi
  151: 
  152: if [ x${old_ip6_prefix} != x ] || [ x${new_ip6_prefix} != x ]; then
  153:     echo Prefix $reason old=${old_ip6_prefix} new=${new_ip6_prefix}
  154: 
  155:     exit_with_hooks 0
  156: fi
  157: 
  158: if [ x$reason = xBOUND6 ]; then
  159:   if [ x${new_ip6_address} = x ] || [ x${new_ip6_prefixlen} = x ]; then
  160:     exit_with_hooks 2;
  161:   fi
  162: 
  163:   ifconfig ${interface} inet6 ${new_ip6_address}/${new_ip6_prefixlen} alias
  164: 
  165:   # Check for nameserver options.
  166:   make_resolv_conf
  167: 
  168:   exit_with_hooks 0
  169: fi
  170: 
  171: if [ x$reason = xRENEW6 ] || [ x$reason = xREBIND6 ]; then
  172:   # Make sure nothing has moved around on us.
  173: 
  174:   # Nameservers/domains/etc.
  175:   if [ "x${new_dhcp6_name_servers}" != "x${old_dhcp6_name_servers}" ] ||
  176:      [ "x${new_dhcp6_domain_search}" != "x${old_dhcp6_domain_search}" ]; then
  177:     make_resolv_conf
  178:   fi
  179: 
  180:   exit_with_hooks 0
  181: fi
  182: 
  183: if [ x$reason = xDEPREF6 ]; then
  184:   if [ x${new_ip6_address} = x ]; then
  185:     exit_with_hooks 2;
  186:   fi
  187: 
  188:   ifconfig ${interface} inet6 ${new_ip6_address} deprecated
  189: 
  190:   exit_with_hooks 0
  191: fi
  192: 
  193: if [ x$reason = xEXPIRE6 -o x$reason = xRELEASE6 -o x$reason = xSTOP6 ]; then
  194:   if [ x${old_ip6_address} = x ] || [ x${old_ip6_prefixlen} = x ]; then
  195:     exit_with_hooks 2;
  196:   fi
  197: 
  198:   ifconfig ${interface} inet6 ${old_ip6_address}/${old_ip6_prefixlen} -alias
  199: 
  200:   exit_with_hooks 0
  201: fi
  202: 
  203: if [ $to_commit = yes ]; then
  204:   commit_resolv_conf
  205: fi
  206: 
  207: exit_with_hooks 0