xvm - zygaena/hammerhead

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#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License (the "License").
# You may not use this file except in compliance with the License.
#
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
# or http://www.opensolaris.org/os/licensing.
# See the License for the specific language governing permissions
# and limitations under the License.
#
# When distributing Covered Code, include this CDDL HEADER in each
# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
# If applicable, add the following below this CDDL HEADER, with the
# fields enclosed by brackets "[]" replaced with your own identifying
# information: Portions Copyright [yyyy] [name of copyright owner]
#
# CDDL HEADER END
#
# Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#

include ../Makefile.cmd

SUBDIRS=	ipagent

all	:	TARGET = all
install	:	TARGET = install
clean	:	TARGET = clean
clobber	:	TARGET = clobber
lint	:	TARGET = lint
strip	:	TARGET = strip
_msg	:	TARGET = _msg

.KEEP_STATE:

all:	$(SUBDIRS)

install strip clean clobber lint _msg:	$(SUBDIRS)

$(SUBDIRS):	FRC
	@cd $@; pwd; $(MAKE) $(TARGET)

FRC:
#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License (the "License").
# You may not use this file except in compliance with the License.
#
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
# or http://www.opensolaris.org/os/licensing.
# See the License for the specific language governing permissions
# and limitations under the License.
#
# When distributing Covered Code, include this CDDL HEADER in each
# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
# If applicable, add the following below this CDDL HEADER, with the
# fields enclosed by brackets "[]" replaced with your own identifying
# information: Portions Copyright [yyyy] [name of copyright owner]
#
# CDDL HEADER END
#
# Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#

KSHPROG=	ipagent
MANIFEST=	ipagent.xml
SVCMETHOD=	svc-ipagent

include ../../Makefile.cmd

ROOTMANIFESTDIR=	$(ROOTSVCSYSTEM)

ROOTKSHPROG=	$(ROOTLIBXEN)/$(KSHPROG)

.KEEP_STATE:

all: $(KSHPROG)

install:	all $(ROOTKSHPROG) $(ROOTMANIFEST) $(ROOTSVCMETHOD)

clean:
	$(RM) $(KSHPROG)

check:		$(CHKMANIFEST)

${ROOTLIB}/%: %
	${INS.file}

include ../../Makefile.targ

#!/bin/ksh
#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License (the "License").
# You may not use this file except in compliance with the License.
#
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
# or http://www.opensolaris.org/os/licensing.
# See the License for the specific language governing permissions
# and limitations under the License.
#
# When distributing Covered Code, include this CDDL HEADER in each
# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
# If applicable, add the following below this CDDL HEADER, with the
# fields enclosed by brackets "[]" replaced with your own identifying
# information: Portions Copyright [yyyy] [name of copyright owner]
#
# CDDL HEADER END
#

# Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.

#
# xVM PV domU IP address reporting agent. Reports IP address back to dom0.
#

interval=$1

xs_ipaddr_path="guest/ipv4/0/address"
xs_link_path="guest/ipv4/default-link"
link=""

#
# Look for a valid-seeming address for the given link. Return 0 on success.
#
link_to_addr()
{
	tmp=`netstat -I $1 -in -f inet | awk '{print $4}' | grep -v Address`;
	if [ -z "$tmp" ] || [ "$tmp" = "0.0.0.0" ];
	then
		addr="(none)";
		return 1;
	fi

	addr=$tmp;
	return 0;
}

default_link()
{
	#
	# Look in the store for a cached link name.
	#
	link=`/usr/lib/xen/bin/xenstore-read $xs_link_path 2>/dev/null`
	if [ -z "$link" ] || [ "$link" = "(none)" ]
	then
		#
		# If it's not there, try to determine what it is
		# and add it to the store.
		determine_default_link
	fi
}

#
# Determine the default link name and update xenstore with the details.
#
determine_default_link()
{
	link="(none)";
	#
	# Choose the first up, non-loopback interface with a valid-looking
	# IP address.
	#
	dladm show-link -p -o link,state | while IFS=: read LINKNAME STATE;
	do
		if [ "$STATE" = "up" ];
		then
			link_to_addr "$LINKNAME"
			if [ $? -eq 0 ]; then link=$LINKNAME; break; fi
		fi
	
	done

	/usr/lib/xen/bin/xenstore-write $xs_link_path $link
}

while true; do

	#
	# Determine the default link in use by this domU.
	#
	default_link;

	#
	# If the link still has a valid-looking IP address, notify dom0 of its
	# address.
	#
	link_to_addr $link
	if [ $? -ne 0 ]
	then
		#
		# An address could not be determined for the currently cached
		# default link so determine it again in case it has changed.
		# We'll still sleep this iteration to rate-limit dladm calls.
		#
		determine_default_link;
	fi

	/usr/lib/xen/bin/xenstore-write $xs_ipaddr_path $addr

	sleep $interval
done

<?xml version="1.0"?>
<!DOCTYPE service_bundle SYSTEM "/usr/share/lib/xml/dtd/service_bundle.dtd.1">
<!--
 Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
 Use is subject to license terms.

 CDDL HEADER START

 The contents of this file are subject to the terms of the
 Common Development and Distribution License (the "License").
 You may not use this file except in compliance with the License.

 You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 or http://www.opensolaris.org/os/licensing.
 See the License for the specific language governing permissions
 and limitations under the License.

 When distributing Covered Code, include this CDDL HEADER in each
 file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 If applicable, add the following below this CDDL HEADER, with the
 fields enclosed by brackets "[]" replaced with your own identifying
 information: Portions Copyright [yyyy] [name of copyright owner]

 CDDL HEADER END

    NOTE:  This service manifest is not editable; its contents will
    be overwritten by package or patch operations, including
    operating system upgrade.  Make customizations in a different
    file.
-->

<service_bundle type='manifest' name='SUNWxvmdom:ipagent'>

<service
        name='system/xvm/ipagent' type='service' version='1'>
	<create_default_instance enabled='false'/>
        <single_instance />

	<dependency
		name='local'
		type='service'
		grouping='require_all'
		restart_on='none'>
		<service_fmri value='svc:/system/filesystem/local' />
	</dependency>

        <exec_method
                type='method'
                name='start'
                exec='/lib/svc/method/svc-ipagent %m %{config/report_interval}'
                timeout_seconds='60'>
                <method_context working_directory='/'>
                        <method_credential user='root' />
                </method_context>
        </exec_method>

        <exec_method
                type='method'
                name='stop'
                exec=':kill'
                timeout_seconds='60' />

        <property_group name='config' type='application'>
		<stability value='Unstable' />
                <propval name='report_interval' type='integer' value='60' />
        </property_group>

        <stability value='Unstable' />

        <template>
                <common_name>
                        <loctext xml:lang='C'>
                        xVM PV domU IP address reporting agent
                        </loctext>
                </common_name>
                <documentation>
                        <manpage title='xVM' section='7'
                             manpath='/usr/share/man' />
                </documentation>
        </template>
</service>

</service_bundle>
#!/bin/ksh
#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License (the "License").
# You may not use this file except in compliance with the License.
#
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
# or http://www.opensolaris.org/os/licensing.
# See the License for the specific language governing permissions
# and limitations under the License.
#
# When distributing Covered Code, include this CDDL HEADER in each
# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
# If applicable, add the following below this CDDL HEADER, with the
# fields enclosed by brackets "[]" replaced with your own identifying
# information: Portions Copyright [yyyy] [name of copyright owner]
#
# CDDL HEADER END
#
# Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.

interval=$2

. /lib/svc/share/smf_include.sh


disable_self()
{
	echo "This service will only run in a PV xVM domU."
	svcadm disable svc:/system/xvm/ipagent:default
	sleep 5 &
	exit $SMF_EXIT_OK
}

check_is_domu()
{
	if [ `uname -p` != "i386" -o `uname -i` != "i86xpv" ]; then
		disable_self
	fi

	/sbin/devfsadm -i domcaps
	domcaps=`cat /dev/xen/domcaps 2>/dev/null`
	echo "$domcaps" | grep "control_d" > /dev/null
	if [ $? = 0 ]; then
		disable_self
	fi
}

case $1 in 
'start')
	check_is_domu

	/usr/lib/xen/bin/ipagent $interval &

	;;

*)
	echo "Usage: $0 start [report_interval]"
	exit 1
	;;
esac	

exit $?