#! /bin/sh
#
# $Id: cluster_validate.sh,v 1.3 2006/04/24 15:55:17 castrv Exp $ Copyright (c) 2003-2006, EMC Corporation.
#
# All rights reserved.
#

# Validate method for HA NetWorker Server (LGTO.serv resource type)
# This method validates the Config_dir property of the resource. The Validate
# method gets called in two scenarios. When the resource is being created and
# when a resource property is getting updated. When the resource is being
# created, this method gets called with the -c flag and all the system-defined
# and extension properties are passed as command-line arguments.
# When a resource
# property is being updated, the Validate method gets called with the -u flag,
# and only the property/value pair of the property being updated is passed as a
# command-line argument.
#
# ex: When the resource is being created command args will be
#
# networker.validate -c -R <..> -G <...> -T <..> -r <sysdef-prop=value>...
# -x <extension-prop=value>.... -g <resourcegroup-prop=value>....
#
# when the resource property is being updated
#
# networker.validate -u -R <..> -G <...> -T <..> -r <sys-prop_updated=value>
# OR
# networker.validate -u -R <..> -G <...> -T <..> -x <extn-prop_updated=value>
#
# NOTE: extension property config_dir cannot be updated since it is 
# tunable AT_CREATION only
# scrgadm will print an error message if admin tries to update it
# 

# parse program arguments.
#
parse_args()
{
    while [ $# -gt 0 ]
    do
        case $1 in
            -R )
                    RESOURCE_NAME=$2
                    shift
                    ;;
            -T )
                    RESOURCETYPE_NAME=$2
                    shift
                    ;;
            -G )
                    RESOURCEGROUP_NAME=$2
                    shift
                    ;;
            -r )
                    # The method is not accessing any system defined
                    # properties, so this is a no-op.
                    shift
                    ;;
            -g )
                    # The method is not accessing any resource group
                    # properties, so this is a no-op.
                    shift
                    ;;
            -c )
                    # Indicates the Validate method is being called while
                    # creating the resource, so this flag is a no-op.
                    ;;
            -u )
                    # Indicates the updating of a property when the
                    # resource already exists.
                    UPDATE_PROPERTY=1
                    ;;
            -x )
                    # Extension property list. Separate the property and
                    # value pairs using "=" as the separator.
                    PROPERTY=`echo $2 | awk -F= '{print $1}' | \
			tr "[A-Z]" "[a-z]"`
                    VAL=`echo $2 | awk -F= '{print $2}'`

                    # If the Confdir extension property is found on the
                    # command line, note its value.
                    if [ X${PROPERTY} = "Xconfig_dir" ]; then
                    CONFDIR=$VAL
                    CONFDIR_FOUND=1
		    fi
		    shift
		    ;;
            * )
                    # Just ignore everything else...
                    ;;
        esac
        shift
    done

}

##############################################################################
#
# MAIN
#
##############################################################################
PATH=/bin:/usr/bin:/usr/cluster/bin:/usr/sbin:/usr/proc/bin:$PATH
export PATH

if [ -f /bin/hostname ]; then
    HOSTNAME=`/bin/hostname`
elif [ -f /usr/ucb/hostname ]; then
    HOSTNAME=`/usr/ucb/hostname`
elif [ -f /usr/bsd/hostname ]; then
    HOSTNAME=`/usr/bsd/hostname`
elif [ -f /usr/local/bin/hostname ]; then
    HOSTNAME=`/usr/local/bin/hostname`
else
    HOSTNAME=
fi

if [ X${HOSTNAME} = X ]; then
    HOSTNAME=`uname -n`
fi

BASE=`basename $0`

# Obtain the syslog facility to use to log messages.
SYSLOG_FACILITY=`scha_cluster_get -O SYSLOG_FACILITY`
LOGERR="logger -t '$HOSTNAME:$BASE' -p ${SYSLOG_FACILITY}.err"
LOGINFO="logger -t '$HOSTNAME:$BASE' -p ${SYSLOG_FACILITY}.info"

# Set the Value of CONFDIR to null. Later, this method retrieves the value
# of the Confdir property from the command line
CONFDIR=""
UPDATE_PROPERTY=0
CONFDIR_FOUND=0

# Parse the arguments that have been passed to this method.
parse_args $*


# If the validate method is being called due to the updating of properties
# there are no properties for us to verify
if [ $UPDATE_PROPERTY = 1 ]; then
	# Log a message indicating that the Validate method was successful.
	$LOGINFO "Validate method for resource "$RESOURCE_NAME \
	" completed successfully"
	exit 0
fi

# Verify that the Confdir property has a value. If not there is a failure
# and exit with status 1.
if [ -z "$CONFDIR" ]; then
	$LOGERR "Validate method for resource "$RESOURCE_NAME " failed"
        $LOGERR "Config_dir extension propery doesn't have a value"
exit 1
fi

# Now validate the actual Confdir property value.
# Check if $CONFDIR is accessible.
if [ ! -d $CONFDIR ]; then
        $LOGERR "Validate method for resource "$RESOURCE_NAME " failed"
	$LOGERR "Directory $CONFDIR missing or not mounted"
exit 1
fi


# Log a message indicating that the Validate method was successful.
$LOGINFO "Validate method for resource "$RESOURCE_NAME \
" completed successfully"

exit 0