NEX-7823 ipmgmtd can't properly remove interface from the old ipadm.conf format
Reviewed by: Dan Fields <dan.fields@nexenta.com>
Reviewed by: Jean McCormack <jean.mccormack@nexenta.com>

@@ -17,17 +17,18 @@
 # fields enclosed by brackets "[]" replaced with your own identifying
 # information: Portions Copyright [yyyy] [name of copyright owner]
 #
 # CDDL HEADER END
 #
+
 #
+# Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T.
+# All rights reserved.
 # Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
 # Copyright 2012 Milan Jurik. All rights reserved.
+# Copyright 2016 Nexenta Systems, Inc.
 #
-# Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T.
-# All rights reserved.
-#
 
 . /lib/svc/share/smf_include.sh
 . /lib/svc/share/net_include.sh
 
 #

@@ -305,10 +306,25 @@
         done
         [ -n "$ipmp6_failed" ] && warn_failed_ifs "create IPv6 IPMP" \
             "$ipmp6_failed"
 fi
 
+#
+# Upgrade ipadm.conf.
+#
+if /usr/bin/grep -q _family /etc/ipadm/ipadm.conf; then
+        oldifs=$(/usr/bin/sed -En \
+            's/^_ifname=([a-z0-9]+);_family=[0-9]+;$/\1/p' \
+            /etc/ipadm/ipadm.conf | /usr/bin/sort -u)
+        /usr/bin/sed -i '/_family/d' /etc/ipadm/ipadm.conf
+        for oldif in $oldifs; do
+                /usr/bin/printf \
+                    "_ifname=%s;_ifclass=0;_families=2,26;\n" \
+                    $oldif >> /etc/ipadm/ipadm.conf
+        done
+fi
+
 #
 # Finally configure interfaces set up with ipadm. Any /etc/hostname*.intf
 # files take precedence over ipadm defined configurations except when
 # we are in a non-global zone and Layer-3 protection of IP addresses is
 # enforced on the interface by the global zone.