usr/src/cmd/svc/milestone/net-netmask

   1 #!/bin/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 2010 Sun Microsystems, Inc.  All rights reserved.
  24 # Use is subject to license terms.
  25 #
  26
  27 #
  28 # Reset netmask and broadcast address whenever new information is
  29 # availabe from NIS.
  30 #
  31
  32 . /lib/svc/share/smf_include.sh
  33
  34 #
  35 # In a shared-IP zone we need this service to be up, but all of the
  36 # work it tries to do is irrelevant (and will actually lead to the
  37 # service failing if we try to do it), so just bail out.
  38 # In the global zone and exclusive-IP zones we proceed.
  39 #
  40 smf_configure_ip || exit $SMF_EXIT_OK
  41
  42 #
  43 # wait_nis
  44 # Wait up to 5 seconds for ypbind to obtain a binding.
  45 #
  46 wait_nis ()
  47 {
  48         for i in 1 2 3 4 5; do
  49                 server=`/usr/bin/ypwhich 2>/dev/null`
  50                 [ $? -eq 0 -a -n "$server" ] && return 0 || sleep 1
  51         done
  52         return 1
  53 }
  54
  55 #
  56 # Reset the netmask and broadcast address for our network interfaces.
  57 # Since this may result in a name service lookup, we want to now wait
  58 # for NIS to come up if we previously started it.
  59 #
  60 domain=`/usr/bin/domainname 2>/dev/null`
  61
  62 [ -z "$domain" ] || [ ! -d /var/yp/binding/$domain ] || wait_nis || \
  63     echo "WARNING: Timed out waiting for NIS to come up" >& 2
  64
  65 #
  66 # Re-set the netmask and broadcast addr for all IP interfaces.  This
  67 # ifconfig is run here, after waiting for name services, so that
  68 # "netmask +" will find the netmask if it lives in a NIS map. The 'D'
  69 # in -auD tells ifconfig NOT to mess with the interface if it is
  70 # under DHCP control
  71 #
  72 /usr/sbin/ifconfig -auD4 netmask + broadcast +
  73
  74 # Uncomment these lines to print complete network interface configuration
  75 # echo "network interface configuration:"
  76 # /usr/sbin/ifconfig -a