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#!/bin/bash

# From "http://fedoraproject.org/wiki/FCNewInit/Initscripts":
#
# Status Exit Codes
#
#  0 program is running or service is OK
#  1 program is dead and /var/run pid file exists
#  2 program is dead and /var/lock lock file exists
#  3 program is not running
#  4 program or service status is unknown
#  5-99 reserved for future LSB use
#  100-149 reserved for distribution use
#  150-199 reserved for application use
#  200-254 reserved
#
# Non-Status Exit Codes
#
#  0 action was successful
#  1 generic or unspecified error (current practice)
#  2 invalid or excess argument(s)
#  3 unimplemented feature (for example, "reload")
#  4 user had insufficient privilege
#  5 program is not installed
#  6 program is not configured
#  7 program is not running
#  8-99    reserved for future LSB use
#  100-149 reserved for distribution use
#  150-199 reserved for application use
#  200-254 reserved
#

# PKI subsystem-level directory and file values for locks
lockfile="/var/lock/subsys/${SERVICE_NAME}"

default_error=0

case $command in
    start|stop|restart|condrestart|force-restart|try-restart)
        # 1 generic or unspecified error (current practice)
        default_error=1
        ;;
    reload)
        default_error=3
        ;;
    status)
        # 4 program or service status is unknown
        default_error=4
        ;;
    *)
        # 2 invalid argument(s)
        default_error=2
        ;;
esac

# Enable nullglob, if set then shell pattern globs which do not match any
# file returns the empty string rather than the unmodified glob pattern.
shopt -s nullglob

OS=`uname -s`
ARCHITECTURE=`uname -i`

# Check to insure that this script's original invocation directory
# has not been deleted!
CWD=`/bin/pwd > /dev/null 2>&1`
if [ $? -ne 0 ] ; then
    echo "Cannot invoke '$PROG_NAME' from non-existent directory!"
    exit ${default_error}
fi

# Check to insure that this script's associated PKI
# subsystem currently resides on this system.
if [ ! -d ${PKI_PATH} ] ; then
    echo "This machine is missing the '${PKI_TYPE}' subsystem!"
    if [ "${command}" != "status" ]; then
        # 5 program is not installed
        exit 5
    else
        exit ${default_error}
    fi
fi

# Check to insure that this script's associated PKI
# subsystem instance registry currently resides on this system.
if [ ! -d ${PKI_REGISTRY} ] ; then
    echo "This machine contains no registered '${PKI_TYPE}' subsystem instances!"
    if [ "${command}" != "status" ]; then
        # 5 program is not installed
        exit 5
    else
        exit ${default_error}
    fi
fi

# This script must be run as root!
RV=0
if [ `id -u` -ne 0 ] ; then
    echo "Must be 'root' to execute '$PROG_NAME'!"
    if [ "${command}" != "status" ]; then
    # 4 user had insufficient privilege
    exit 4
    else
    # 4 program or service status is unknown
    exit 4
    fi
fi

PKI_REGISTRY_ENTRIES=""
TOTAL_PKI_REGISTRY_ENTRIES=0
TOTAL_UNCONFIGURED_PKI_ENTRIES=0

# Gather ALL registered instances of this PKI subsystem type
for FILE in ${PKI_REGISTRY}/*; do
    if [ -f "$FILE" ] ; then
        PKI_REGISTRY_ENTRIES="${PKI_REGISTRY_ENTRIES} $FILE"
        TOTAL_PKI_REGISTRY_ENTRIES=`expr ${TOTAL_PKI_REGISTRY_ENTRIES} + 1`
    fi
done

if [ -n "${pki_instance}" ]; then
    for I in ${PKI_REGISTRY_ENTRIES}; do
        if [ "${PKI_REGISTRY}/${pki_instance}" = "$I" ]; then
            PKI_REGISTRY_ENTRIES="${PKI_REGISTRY}/${pki_instance}"
            TOTAL_PKI_REGISTRY_ENTRIES=1
            break
        fi
    done
fi

usage()
{
    echo -n "Usage: ${SERVICE_PROG} ${SERVICE_NAME}"
    echo -n "{start"
    echo -n "|stop"
    echo -n "|restart"
    echo -n "|condrestart"
    echo -n "|force-restart"
    echo -n "|try-restart"
    echo -n "|reload"
    echo -n "|status} "
    echo -n "[instance-name]"
    echo
    echo
}

usage_systemd()
{
    echo -n "Usage: /usr/bin/pkicontrol "
    echo -n "{start"
    echo -n "|stop"
    echo -n "|restart"
    echo -n "|condrestart"
    echo -n "|force-restart"
    echo -n "|try-restart"
    echo -n "|reload"
    echo -n "|status} "
    echo -n "subsystem-type "
    echo -n "[instance-name]"
    echo
    echo
}


list_instances()
{
    echo
    for PKI_REGISTRY_ENTRY in $PKI_REGISTRY_ENTRIES; do
	instance_name=`basename $PKI_REGISTRY_ENTRY`
        echo "    $instance_name"
    done
    echo
}

# Check arguments
if [ $SYSTEMD ]; then
    if [ $# -lt 2 ] ; then
        #     [insufficient arguments]
        echo "$PROG_NAME:  Insufficient arguments!"
        echo
        usage_systemd
        echo "where valid instance names include:"
        list_instances
        exit 3
    elif [ ${default_error} -eq 2 ] ; then
        # 2 invalid argument
        echo "$PROG_NAME:  Invalid arguments!"
        echo
        usage_systemd
        echo "where valid instance names include:"
        list_instances
        exit 2
    elif [ $# -gt 3 ] ; then
        echo "$PROG_NAME:  Excess arguments!"
        echo
        usage_systemd
        echo "where valid instance names include:"
        list_instances
        if [ "${command}" != "status" ]; then
            # 2 excess arguments
            exit 2
        else
            # 4 program or service status is unknown
            exit 4
        fi
    fi
else
    if [ $# -lt 1 ] ; then
        # 3 unimplemented feature (for example, "reload")
        #     [insufficient arguments]
        echo "$PROG_NAME:  Insufficient arguments!"
        echo
        usage
        echo "where valid instance names include:"
        list_instances
        exit 3
    elif [ ${default_error} -eq 2 ] ; then
        # 2 invalid argument
        echo "$PROG_NAME:  Invalid arguments!"
        echo
        usage
        echo "where valid instance names include:"
        list_instances
        exit 2
    elif [ $# -gt 2 ] ; then
        echo "$PROG_NAME:  Excess arguments!"
        echo
        usage
        echo "where valid instance names include:"
        list_instances
        if [ "${command}" != "status" ]; then
            # 2 excess arguments
            exit 2
        else
            # 4 program or service status is unknown
            exit 4
        fi
    fi
fi

# If an "instance" was supplied, check that it is a "valid" instance
if [ -n "${pki_instance}" ]; then
    valid=0
    for PKI_REGISTRY_ENTRY in $PKI_REGISTRY_ENTRIES; do
	instance_name=`basename $PKI_REGISTRY_ENTRY`
        if [ $pki_instance == $instance_name ]; then
	    valid=1
	    break
	fi
    done
    if [ $valid -eq 0 ]; then
        echo -n "${pki_instance} is an invalid '${PKI_TYPE}' instance"
        if [ ! $SYSTEMD ]; then
            echo_failure
        fi
        echo

        if [ "${command}" != "status" ]; then
            # 5 program is not installed
            exit 5
        else
            # 4 program or service status is unknown
            exit 4
        fi
    fi
fi

check_pki_configuration_status()
{
    rv=0

    rv=`grep -c ^preop ${pki_instance_configuration_file}`

    rv=`expr ${rv} + 0`

    if [ $rv -ne 0 ] ; then
        echo "    '${PKI_INSTANCE_ID}' must still be CONFIGURED!"
        echo "    (see /var/log/${PKI_INSTANCE_ID}-install.log)"
        if [ "${command}" != "status" ]; then
            # 6 program is not configured
            rv=6
        else
            # 4 program or service status is unknown
            rv=4
        fi
        TOTAL_UNCONFIGURED_PKI_ENTRIES=`expr ${TOTAL_UNCONFIGURED_PKI_ENTRIES} + 1`
    elif [ -f ${RESTART_SERVER} ] ; then
        echo -n "    Although '${PKI_INSTANCE_ID}' has been CONFIGURED, "
        echo -n "it must still be RESTARTED!"
        echo
        if [ "${command}" != "status" ]; then
            # 1 generic or unspecified error (current practice)
            rv=1
        else
            # 4 program or service status is unknown
            rv=4
        fi
    fi

    return $rv
}

get_pki_status_definitions()
{
    case $PKI_SUBSYSTEM_TYPE in
	ca|kra|ocsp|tks)
	    get_pki_status_definitions_tomcat
	    return $?
	    ;;
	ra)
	    get_pki_status_definitions_ra
	    return $?
	    ;;
	tps)
	    get_pki_status_definitions_tps
	    return $?
	    ;;
	*)
	    echo "Unknown subsystem type ($PKI_SUBSYSTEM_TYPE)"
	    exit ${default_error}
	    ;;
    esac
}

get_pki_status_definitions_ra()
{
    # establish well-known strings
    total_ports=0
    UNSECURE_PORT=""
    CLIENTAUTH_PORT=""
    NON_CLIENTAUTH_PORT=""

    # check to see that an instance-specific "httpd.conf" file exists
    if [ ! -f ${PKI_HTTPD_CONF} ] ; then
	echo "File '${PKI_HTTPD_CONF}' does not exist!"
	exit ${default_error}
    fi

    # check to see that an instance-specific "nss.conf" file exists
    if [ ! -f ${PKI_NSS_CONF} ] ; then
	echo "File '${PKI_NSS_CONF}' does not exist!"
	exit ${default_error}
    fi

    # Iterate over Listen statements
    for port in `sed -n 's/^[ \t]*Listen[ \t][ \t]*\([^ \t][^ \t]*\)/\1/p' ${PKI_HTTPD_CONF}`; do
	UNSECURE_PORT=$port
	if [ $total_ports -eq 0 ]; then
	    echo "    Unsecure Port              = http://${PKI_SERVER_NAME}:${UNSECURE_PORT}"
        else
            echo "ERROR: extra Unsecure Port = http://${PKI_SERVER_NAME}:${UNSECURE_PORT}"
        fi
	total_ports=`expr ${total_ports} + 1`

    done

    # Iterate over Listen statements
    for port in `sed -n 's/^[ \t]*Listen[ \t][ \t]*\([^ \t][^ \t]*\)/\1/p' ${PKI_NSS_CONF}`; do
	UNSECURE_PORT=$port
	if [ $total_ports -eq 1 ]; then
	    CLIENTAUTH_PORT=$port
	    echo "    Secure Clientauth Port     = https://${PKI_SERVER_NAME}:${CLIENTAUTH_PORT}"
        fi
	if [ $total_ports -eq 2 ]; then
	    NON_CLIENTAUTH_PORT=$port
	    echo "    Secure Non-Clientauth Port = https://${PKI_SERVER_NAME}:${NON_CLIENTAUTH_PORT}"
        fi
	total_ports=`expr ${total_ports} + 1`

    done

    return 0;
}

get_pki_status_definitions_tps()
{
    # establish well-known strings
    total_ports=0
    UNSECURE_PORT=""
    CLIENTAUTH_PORT=""
    NON_CLIENTAUTH_PORT=""

    # check to see that an instance-specific "httpd.conf" file exists
    if [ ! -f ${PKI_HTTPD_CONF} ] ; then
	echo "File '${PKI_HTTPD_CONF}' does not exist!"
	exit ${default_error}
    fi

    # check to see that an instance-specific "nss.conf" file exists
    if [ ! -f ${PKI_NSS_CONF} ] ; then
	echo "File '${PKI_NSS_CONF}' does not exist!"
	exit ${default_error}
    fi

    # Iterate over Listen statements
    for port in `sed -n 's/^[ \t]*Listen[ \t][ \t]*\([^ \t][^ \t]*\)/\1/p' ${PKI_HTTPD_CONF}`; do
	UNSECURE_PORT=$port
	if [ $total_ports -eq 0 ]; then
	    echo "    Unsecure Port              = http://${PKI_SERVER_NAME}:${UNSECURE_PORT}/cgi-bin/so/enroll.cgi"
	    echo "                                 (ESC Security Officer Enrollment)"
	    echo "    Unsecure Port              = http://${PKI_SERVER_NAME}:${UNSECURE_PORT}/cgi-bin/home/index.cgi"
	    echo "                                 (ESC Phone Home)"
        else
            echo "ERROR: extra Unsecure Port = http://${PKI_SERVER_NAME}:${UNSECURE_PORT}"
        fi
	total_ports=`expr ${total_ports} + 1`

    done

    # Iterate over Listen statements
    for port in `sed -n 's/^[ \t]*Listen[ \t][ \t]*\([^ \t][^ \t]*\)/\1/p' ${PKI_NSS_CONF}`; do
	UNSECURE_PORT=$port
	if [ $total_ports -eq 1 ]; then
	    CLIENTAUTH_PORT=$port
	    echo "    Secure Clientauth Port     = https://${PKI_SERVER_NAME}:${CLIENTAUTH_PORT}/cgi-bin/sow/welcome.cgi"
	    echo "                                 (ESC Security Officer Workstation)"
	    echo "    Secure Clientauth Port     = https://${PKI_SERVER_NAME}:${CLIENTAUTH_PORT}/tus"
	    echo "                                 (TPS Roles - Operator/Administrator/Agent)"
        fi
	if [ $total_ports -eq 2 ]; then
	    NON_CLIENTAUTH_PORT=$port
	    echo "    Secure Non-Clientauth Port = https://${PKI_SERVER_NAME}:${NON_CLIENTAUTH_PORT}/cgi-bin/so/enroll.cgi"
	    echo "                                 (ESC Security Officer Enrollment)"
	    echo "    Secure Non-Clientauth Port = https://${PKI_SERVER_NAME}:${NON_CLIENTAUTH_PORT}/cgi-bin/home/index.cgi"
	    echo "                                 (ESC Phone Home)"
        fi
	total_ports=`expr ${total_ports} + 1`

    done

    return 0;
}

get_pki_status_definitions_tomcat()
{
    # establish well-known strings
    begin_pki_status_comment="<!-- DO NOT REMOVE - Begin PKI Status Definitions -->"
    end_pki_status_comment="<!-- DO NOT REMOVE - End PKI Status Definitions -->"
    total_ports=0
    unsecure_port_statement="Unsecure Port"
    secure_agent_port_statement="Secure Agent Port"
    secure_ee_port_statement="Secure EE Port"
    secure_ee_client_auth_port_statement="EE Client Auth Port"
    secure_admin_port_statement="Secure Admin Port"
    pki_console_port_statement="PKI Console Port"
    tomcat_port_statement="Tomcat Port"

    # initialize looping variables
    pki_status_comment_found=0

    # first check to see that an instance-specific "server.xml" file exists
    if [ ! -f ${PKI_SERVER_XML_CONF} ] ; then
        echo "File '${PKI_SERVER_XML_CONF}' does not exist!"
        exit ${default_error}
    fi

    # read this instance-specific "server.xml" file line-by-line
    # to obtain the current PKI Status Definitions
    exec < ${PKI_SERVER_XML_CONF}
    while read line; do
        # first look for the well-known end PKI Status comment
        # (to turn off processing)
        if [ "$line" == "$end_pki_status_comment" ] ; then
            pki_status_comment_found=0
            break;
        fi

        # then look for the well-known begin PKI Status comment
        # (to turn on processing)
        if [ "$line" == "$begin_pki_status_comment" ] ; then
            pki_status_comment_found=1
        fi

        # once the well-known begin PKI Status comment has been found,
        # begin processing to obtain all of the PKI Status Definitions
        if [ $pki_status_comment_found -eq 1 ] ; then
            # look for a PKI Status Definition and print it
            head=`echo "$line" | sed -e 's/^\([^=]*\)[ \t]*= .*$/\1/' -e 's/[ \t]*$//'`
            if  [ "$head" == "$unsecure_port_statement"     ]          ||
                [ "$head" == "$secure_agent_port_statement" ]          ||
                [ "$head" == "$secure_ee_port_statement"    ]          ||
                [ "$head" == "$secure_ee_client_auth_port_statement" ] ||
                [ "$head" == "$secure_admin_port_statement" ]          ||
                [ "$head" == "$pki_console_port_statement"  ]          ||
                [ "$head" == "$tomcat_port_statement"       ] ; then
                echo "    $line"
                total_ports=`expr ${total_ports} + 1`
            fi
        fi
    done

    return 0;
}

get_pki_configuration_definitions()
{
    # Obtain the PKI Subsystem Type
    line=`grep -e '^[ \t]*cs.type[ \t]*=' ${pki_instance_configuration_file}`
    pki_subsystem=`echo "${line}" | sed -e 's/^[^=]*=[ \t]*\(.*\)/\1/' -e 's/[ \t]*$//'`
    if [ "${line}" != "" ] ; then
        if  [ "${pki_subsystem}" != "CA"   ]  &&
            [ "${pki_subsystem}" != "KRA"  ]  &&
            [ "${pki_subsystem}" != "OCSP" ]  &&
            [ "${pki_subsystem}" != "TKS"  ]  &&
            [ "${pki_subsystem}" != "RA"   ]  &&
            [ "${pki_subsystem}" != "TPS"  ]
        then
            return ${default_error}
        fi
        if    [ "${pki_subsystem}" == "KRA"   ] ; then
            # Rename "KRA" to "DRM"
            pki_subsystem="DRM"
        fi
    else
        return ${default_error}
    fi

    # If "${pki_subsystem}" is a CA, DRM, OCSP, or TKS,
    # check to see if "${pki_subsystem}" is a "Clone"
    pki_clone=""
    if  [ "${pki_subsystem}" == "CA"   ]  ||
        [ "${pki_subsystem}" == "DRM"  ]  ||
        [ "${pki_subsystem}" == "OCSP" ]  ||
        [ "${pki_subsystem}" == "TKS"  ]
    then
        line=`grep -e '^[ \t]*subsystem.select[ \t]*=' ${pki_instance_configuration_file}`
        if [ "${line}" != "" ] ; then
            pki_clone=`echo "${line}" | sed -e 's/^[^=]*[ \t]*=[ \t]*\(.*\)/\1/' -e 's/[ \t]*$//'`
            if [ "${pki_clone}" != "Clone" ] ; then
                # Reset "${pki_clone}" to be empty
                pki_clone=""
            fi
        else
            return ${default_error}
        fi
    fi

    # If "${pki_subsystem}" is a CA, and is NOT a "Clone", check to
    # see "${pki_subsystem}" is a "Root" or a "Subordinate" CA
    pki_hierarchy=""
    if    [ "${pki_subsystem}" == "CA" ]  &&
        [ "${pki_clone}" != "Clone"  ]
    then
        line=`grep -e '^[ \t]*hierarchy.select[ \t]*=' ${pki_instance_configuration_file}`
        if [ "${line}" != "" ] ; then
            pki_hierarchy=`echo "${line}" | sed -e 's/^[^=]*[ \t]*=[ \t]*\(.*\)/\1/' -e 's/[ \t]*$//'`
        else
            return ${default_error}
        fi
    fi

    # If ${pki_subsystem} is a CA, check to
    # see if it is also a Security Domain
    pki_security_domain=""
    if    [ "${pki_subsystem}" == "CA" ] ; then
        line=`grep -e '^[ \t]*securitydomain.select[ \t]*=' ${pki_instance_configuration_file}`
        if [ "${line}" != "" ] ; then
            pki_security_domain=`echo "${line}" | sed -e 's/^[^=]*[ \t]*=[ \t]*\(.*\)/\1/' -e 's/[ \t]*$//'`
            if [ "${pki_security_domain}" == "new" ] ; then
                # Set a fixed value for "${pki_security_domain}"
                pki_security_domain="(Security Domain)"
            else
                # Reset "${pki_security_domain}" to be empty
                pki_security_domain=""
            fi
        else
            return ${default_error}
        fi
    fi

    # Always obtain this PKI instance's "registered"
    # security domain information
    pki_security_domain_name=""
    pki_security_domain_hostname=""
    pki_security_domain_https_admin_port=""

    line=`grep -e '^[ \t]*securitydomain.name[ \t]*=' ${pki_instance_configuration_file}`
    if [ "${line}" != "" ] ; then
        pki_security_domain_name=`echo "${line}" | sed -e 's/^[^=]*[ \t]*=[ \t]*\(.*\)/\1/' -e 's/[ \t]*$//'`
    else
        return ${default_error}
    fi

    line=`grep -e '^[ \t]*securitydomain.host[ \t]*=' ${pki_instance_configuration_file}`
    if [ "${line}" != "" ] ; then
        pki_security_domain_hostname=`echo "${line}" | sed -e 's/^[^=]*[ \t]*=[ \t]*\(.*\)/\1/' -e 's/[ \t]*$//'`
    else
        return ${default_error}
    fi

    line=`grep -e '^[ \t]*securitydomain.httpsadminport[ \t]*=' ${pki_instance_configuration_file}`
    if [ "${line}" != "" ] ; then
        pki_security_domain_https_admin_port=`echo "${line}" | sed -e 's/^[^=]*[ \t]*=[ \t]*\(.*\)/\1/' -e 's/[ \t]*$//'`
    else
        return ${default_error}
    fi

    # Compose the "PKI Instance Name" Status Line
    pki_instance_name="PKI Instance Name:   ${PKI_INSTANCE_ID}"

    # Compose the "PKI Subsystem Type" Status Line
    header="PKI Subsystem Type: "
    if   [ "${pki_clone}" != "" ] ; then
        if [ "${pki_security_domain}" != "" ]; then
            # Possible Values:
            #
            #     "CA Clone (Security Domain)"
            #
            data="${pki_subsystem} ${pki_clone} ${pki_security_domain}"
        else
            # Possible Values:
            #
            #     "CA Clone"
            #     "DRM Clone"
            #     "OCSP Clone"
            #     "TKS Clone"
            #
            data="${pki_subsystem} ${pki_clone}"
        fi
    elif [ "${pki_hierarchy}" != "" ] ; then
        if [ "${pki_security_domain}" != "" ]; then
            # Possible Values:
            #
            #     "Root CA (Security Domain)"
            #     "Subordinate CA (Security Domain)"
            #
            data="${pki_hierarchy} ${pki_subsystem} ${pki_security_domain}"
        else
            # Possible Values:
            #
            #     "Root CA"
            #     "Subordinate CA"
            #
            data="${pki_hierarchy} ${pki_subsystem}"
        fi
    else
        # Possible Values:
        #
        #     "DRM"
        #     "OCSP"
        #     "RA"
        #     "TKS"
        #     "TPS"
        #
        data="${pki_subsystem}"
    fi
    pki_subsystem_type="${header} ${data}"

    # Compose the "Registered PKI Security Domain Information" Status Line
    header="Name: "
    registered_pki_security_domain_name="${header} ${pki_security_domain_name}"

    header="URL:  "
    if    [ "${pki_security_domain_hostname}" != ""         ] &&
        [ "${pki_security_domain_https_admin_port}" != "" ]
    then
        data="https://${pki_security_domain_hostname}:${pki_security_domain_https_admin_port}"
    else
        return ${default_error}
    fi
    registered_pki_security_domain_url="${header} ${data}"

    # Print the "PKI Subsystem Type" Status Line
    echo
    echo "    ${pki_instance_name}"

    # Print the "PKI Subsystem Type" Status Line
    echo
    echo "    ${pki_subsystem_type}"

    # Print the "Registered PKI Security Domain Information" Status Line
    echo
    echo "    Registered PKI Security Domain Information:"
    echo "    =========================================================================="
    echo "    ${registered_pki_security_domain_name}"
    echo "    ${registered_pki_security_domain_url}"
    echo "    =========================================================================="

    return 0
}

display_configuration_information()
{
    result=0
    check_pki_configuration_status
    rv=$?
    if [ $rv -eq 0 ] ; then
        get_pki_status_definitions
        rv=$?
        if [ $rv -ne 0 ] ; then
	    result=$rv
            echo
            echo "${PKI_INSTANCE_ID} Status Definitions not found"
        else
            get_pki_configuration_definitions
            rv=$?
            if [ $rv -ne 0 ] ; then
		result=$rv
                echo
                echo "${PKI_INSTANCE_ID} Configuration Definitions not found"
            fi
        fi
    fi
    return $result
}

display_instance_status_systemd()
{
    echo -n "Status for ${PKI_INSTANCE_ID}: "
    systemctl status "$PKI_SYSTEMD_TARGET@$PKI_INSTANCE_ID.service" > /dev/null 2>&1
    rv=$?

    if [ $rv -eq 0 ] ; then
        echo "$PKI_INSTANCE_ID is running .."
        display_configuration_information
    else
        echo "$PKI_INSTANCE_ID is stopped"
    fi

    return $rv
}

display_instance_status()
{
    # Verify there is an initscript for this instance
    if [ ! -f $PKI_INSTANCE_INITSCRIPT ]; then
        # 4 program or service status is unknown
	return 4
    fi

    # Invoke the initscript for this instance
    $PKI_INSTANCE_INITSCRIPT status
    rv=$?

    if [ $rv -eq 0 ] ; then
	display_configuration_information
    fi

    return $rv
}

make_symlink()
{
    symlink="${1}"
    target="${2}"
    user="${3}"
    group="${4}"

    rv=0

    echo "INFO:  Attempting to create '${symlink}' -> '${target}' . . ."
    # Check to make certain that the expected target exists.
    #
    #     NOTE:  The symbolic link does NOT exist at this point.
    #
    if [ -e ${target} ]; then
        # Check that the expected target is fully resolvable!
        if [ ! `readlink -qe ${target}` ]; then
            # Issue an ERROR that the target to which the
            # symbolic link is expected to point is NOT fully resolvable!
            echo "ERROR:  Failed making '${symlink}' -> '${target}'"\
                 "since target '${target}' is NOT fully resolvable!"
            rv=1
        else
            # Attempt to create a symbolic link and 'chown' it.
            ln -s ${target} ${symlink}
            rv=$?
            if [ $rv -eq 0 ]; then
                # NOTE:  Ignore 'chown' errors.
                chown -h ${user}:${group} ${symlink}
                echo "SUCCESS:  Created '${symlink}' -> '${target}'"
            else
                echo "ERROR:  Failed to create '${symlink}' -> '${target}'!"
                rv=1
            fi
        fi
    else
        # Issue an ERROR that the target to which the
        # symbolic link is expected to point does NOT exist.
        echo "ERROR:  Failed making '${symlink}' -> '${target}'"\
             "since target '${target}' does NOT exist!"
        rv=1
    fi

    return $rv
}

check_symlinks()
{
    # declare -p symlinks
    path="${1}"
    user="${2}"
    group="${3}"

    rv=0

    # process key/value pairs (symlink/target) in the associative array
    for key in "${!symlinks[@]}"
    do
        symlink="${path}/${key}"
        target=${symlinks[${key}]}
        if [ -e ${symlink} ]; then
            if [ -h ${symlink} ]; then
                current_target=`readlink ${symlink}`
                # Verify that the current target to which the
                # symlink points is the expected target
                if [ ${current_target} == ${target} ]; then
                    # Check to make certain that the expected target exists.
                    if [ -e ${target} ]; then
                        # Check that the expected target is fully resolvable!
                        if [ ! `readlink -qe ${target}` ]; then
                            # Issue an ERROR that the target to which the
                            # symbolic link is expected to point is NOT
                            # fully resolvable!
                            echo "WARNING:  Symbolic link '${symlink}'"\
                                 "exists, but is a dangling symlink!"\
                            echo "ERROR:  Unable to create"\
                                 "'${symlink}' -> '${target}'"\
                                 "since target '${target}' is NOT fully"\
                                 "resolvable!"
                            rv=1
                        else
                            # ALWAYS run 'chown' on an existing '${symlink}'
                            # that points to a fully resolvable '${target}'
                            #
                            #     NOTE:  Ignore 'chown' errors.
                            #
                            chown -h ${user}:${group} ${symlink}
                            # echo "SUCCESS:  '${symlink}' -> '${target}'"
                        fi
                    else
                        # Issue an ERROR that the target to which the
                        # symbolic link is expected to point does NOT exist.
                        echo "WARNING:  Symbolic link '${symlink}'"\
                             "exists, but is a dangling symlink!"\
                        echo "ERROR:  Unable to create"\
                             "'${symlink}' -> '${target}'"\
                             "since target '${target}' does NOT exist!"
                        rv=1
                    fi
                else
                    # Attempt to remove this symbolic link and
                    # issue a WARNING that a new symbolic link is
                    # being created to point to the expected target
                    # rather than the current target to which it
                    # points.
                    echo "WARNING:  Attempting to change symbolic link"\
                         "'${symlink}' to point to target '${target}'"\
                         "INSTEAD of current target '${current_target}'!"
                    rm ${symlink}
                    rv=$?
                    if [ $rv -ne 0 ]; then
                        echo "ERROR:  Failed to remove"\
                             "'${symlink}' -> '${current_target}'!"
                        rv=1
                    else
                        echo "INFO:  Removed"\
                             "'${symlink}' -> '${current_target}'!"
                        # Attempt to create the symbolic link and chown it.
                        make_symlink ${symlink} ${target} ${user} ${group}
                        rv=$?
                    fi
                fi
            elif [ -f ${symlink} ]; then
                # Issue a WARNING that the administrator may have replaced
                # the symbolic link with a file for debugging purposes.
                echo "WARNING:  '${symlink}' exists but is NOT a symbolic link!"
            else
                # Issue an ERROR that the symbolic link has been replaced
                # by something unusable (such as a directory).
                echo "ERROR:  '${symlink}' exists but is NOT a symbolic link!"
                rv=1
            fi
        else
            # Issue a WARNING that this symbolic link does not exist.
            echo "WARNING:  Symbolic link '${symlink}' does NOT exist!"
            # Attempt to create the symbolic link and chown it.
            make_symlink ${symlink} ${target} ${user} ${group}
            rv=$?
        fi
    done

    return $rv
}

# Detect and correct any missing or incorrect symlinks.
#
#     Use the following command to locate PKI 'instance' symlinks:
#
#        find ${PKI_INSTANCE_PATH} -type l | sort | xargs file
#
verify_symlinks()
{
    declare -A apache_symlinks
    declare -A perl_symlinks
    declare -A base_symlinks
    declare -A root_symlinks
    declare -A common_jar_symlinks
    declare -A webapps_jar_symlinks
    declare -A systemd_symlinks

    # Dogtag 9 Conditional Variables
    if [ ${ARCHITECTURE} == "x86_64" ]; then
        jni_dir="/usr/lib64/java"
    else
        jni_dir="/usr/lib/java"
    fi
    if   [ ${PKI_SUBSYSTEM_TYPE} == "ca" ]; then
        pki_systemd_link="pki-cad@${PKI_INSTANCE_ID}.service"
        pki_systemd_service="pki-cad@.service"
    elif [ ${PKI_SUBSYSTEM_TYPE} == "kra" ]; then
        pki_systemd_link="pki-krad@${PKI_INSTANCE_ID}.service"
        pki_systemd_service="pki-krad@.service"
    elif [ ${PKI_SUBSYSTEM_TYPE} == "ocsp" ]; then
        pki_systemd_link="pki-ocspd@${PKI_INSTANCE_ID}.service"
        pki_systemd_service="pki-ocspd@.service"
    elif [ ${PKI_SUBSYSTEM_TYPE} == "ra" ]; then
        pki_systemd_link="pki-rad@${PKI_INSTANCE_ID}.service"
        pki_systemd_service="pki-rad@.service"
    elif [ ${PKI_SUBSYSTEM_TYPE} == "tks" ]; then
        pki_systemd_link="pki-tksd@${PKI_INSTANCE_ID}.service"
        pki_systemd_service="pki-tksd@.service"
    elif [ ${PKI_SUBSYSTEM_TYPE} == "tps" ]; then
        pki_systemd_link="pki-tpsd@${PKI_INSTANCE_ID}.service"
        pki_systemd_service="pki-tpsd@.service"
    fi

    # Dogtag 9 Symbolic Link Target Variables
    systemd_dir="/lib/systemd/system"

    # Dogtag 9 Symbolic Link Variables
    pki_common_jar_dir="${PKI_INSTANCE_PATH}/common/lib"
    # pki_registry_dir="/etc/sysconfig/pki/${PKI_SUBSYSTEM_TYPE}/${PKI_INSTANCE_ID}"
    pki_systemd_dir="/etc/systemd/system/pki-cad.target.wants"
    pki_webapps_jar_dir="${PKI_INSTANCE_PATH}/webapps/${PKI_SUBSYSTEM_TYPE}/WEB-INF/lib"

    # '${PKI_INSTANCE_PATH}' symlinks
    apache_symlinks=(
        [conf]=/etc/${PKI_INSTANCE_ID}
        [logs]=/var/log/${PKI_INSTANCE_ID}
        [run]=/var/run/pki/${PKI_SUBSYSTEM_TYPE})

    base_symlinks=(
        [conf]=/etc/${PKI_INSTANCE_ID}
        [logs]=/var/log/${PKI_INSTANCE_ID})

    # '${PKI_INSTANCE_PATH}' symlinks (root:root ownership)
    root_symlinks[${PKI_INSTANCE_ID}]=/usr/sbin/tomcat6-sysd

    # '${PKI_INSTANCE_PATH}/lib' symlinks
    perl_symlinks[perl]=/usr/share/pki/${PKI_SUBSYSTEM_TYPE}/lib/perl

    # '${pki_common_jar_dir}' symlinks
    common_jar_symlinks=(
        [apache-commons-logging.jar]=/usr/share/java/apache-commons-logging.jar
        [jss4.jar]=${jni_dir}/jss4.jar
        [tomcatjss.jar]=/usr/share/java/tomcatjss.jar
        # Dogtag 9 -> Dogtag 10
        [apache-commons-codec.jar]=/usr/share/java/commons-codec.jar
        [pki-tomcat.jar]=/usr/share/java/pki/pki-tomcat.jar)

    # '${pki_webapps_jar_dir}' symlinks
    webapps_jar_symlinks=(
        [apache-commons-collections.jar]=/usr/share/java/apache-commons-collections.jar
        [apache-commons-lang.jar]=/usr/share/java/apache-commons-lang.jar
        [ldapjdk.jar]=/usr/share/java/ldapjdk.jar
        # [osutil.jar]=${jni_dir}/osutil.jar
        [pki-${PKI_SUBSYSTEM_TYPE}.jar]=/usr/share/java/pki/pki-${PKI_SUBSYSTEM_TYPE}.jar
        [pki-certsrv.jar]=/usr/share/java/pki/pki-certsrv.jar
        [pki-cms.jar]=/usr/share/java/pki/pki-cms.jar
        [pki-cmsbundle.jar]=/usr/share/java/pki/pki-cmsbundle.jar
        [pki-cmscore.jar]=/usr/share/java/pki/pki-cmscore.jar
        [pki-cmsutil.jar]=/usr/share/java/pki/pki-cmsutil.jar
        [pki-nsutil.jar]=/usr/share/java/pki/pki-nsutil.jar
        [velocity.jar]=/usr/share/java/velocity.jar
        [xerces-j2.jar]=/usr/share/java/xerces-j2.jar
        [xml-commons-apis.jar]=/usr/share/java/xml-commons-apis.jar
        [xml-commons-resolver.jar]=/usr/share/java/xml-commons-resolver.jar)

    if [ "${PKI_SUBSYSTEM_TYPE}" == "tks"  ]; then
        webapps_jar_symlinks[symkey.jar]=${jni_dir}/symkey.jar
    fi

    # '${pki_systemd_dir}' symlinks
    systemd_symlinks[${pki_systemd_link}]=${systemd_dir}/${pki_systemd_service}

    # Detect and correct PKI subsystem 'instance' symbolic links
    #
    #     (1) convert the specified associative array into a string
    #     (2) create a new global 'symlinks' associative array from this
    #         specified string which will be used by the "check_symlinks()"
    #         subroutine
    #     (3) call "check_symlinks()" with the appropriate arguments to
    #         detect and correct this specified associative array;
    #         "check_symlinks()" returns 0 on success and 1 on failure
    #
    if   [ "${PKI_SUBSYSTEM_TYPE}" == "ra"   ]  ||
         [ "${PKI_SUBSYSTEM_TYPE}" == "tps"  ]
    then
        # Detect and correct 'apache_symlinks'
        apache_symlinks_string=$(declare -p apache_symlinks)
        eval "declare -A symlinks=${apache_symlinks_string#*=}"
        check_symlinks ${PKI_INSTANCE_PATH} ${PKI_USER} ${PKI_GROUP}
        rv=$?
        if [ $rv -ne 0 ]; then
            return $rv
        fi

        # Detect and correct 'perl_symlinks'
        perl_symlinks_string=$(declare -p perl_symlinks)
        eval "declare -A symlinks=${perl_symlinks_string#*=}"
        check_symlinks ${PKI_INSTANCE_PATH}/lib ${PKI_USER} ${PKI_GROUP}
        rv=$?
        if [ $rv -ne 0 ]; then
            return $rv
        fi

        if [ "${PKI_SUBSYSTEM_TYPE}" == "tps"  ]; then
            # ALWAYS recreate this "convenience" link and 'chown' it
            # NOTE:  Ignore 'chown' errors.
            cd ${PKI_INSTANCE_PATH}/docroot ;
            ln -s tokendb tus ;
            rv=$?
            if [ $rv -eq 0 ]; then
                chown -h ${PKI_USER}:${PKI_GROUP} tus
                # echo "SUCCESS:  Created 'tus' -> 'tokendb'"
            else
                echo "ERROR:  Failed to create 'tus' -> 'tokendb' convenience"
                echo "        symbolic link for '${PKI_INSTANCE_ID}'!"
                return 1
            fi
        fi
    elif [ "${PKI_SUBSYSTEM_TYPE}" == "ca"   ]  ||
         [ "${PKI_SUBSYSTEM_TYPE}" == "kra"  ]  ||
         [ "${PKI_SUBSYSTEM_TYPE}" == "ocsp" ]  ||
         [ "${PKI_SUBSYSTEM_TYPE}" == "tks"  ]
    then
        # Detect and correct 'base_symlinks'
        base_symlinks_string=$(declare -p base_symlinks)
        eval "declare -A symlinks=${base_symlinks_string#*=}"
        check_symlinks ${PKI_INSTANCE_PATH} ${PKI_USER} ${PKI_GROUP}
        rv=$?
        if [ $rv -ne 0 ]; then
            return $rv
        fi

        # Detect and correct 'root_symlinks'
        root_symlinks_string=$(declare -p root_symlinks)
        eval "declare -A symlinks=${root_symlinks_string#*=}"
        check_symlinks ${PKI_INSTANCE_PATH} "root" "root"
        rv=$?
        if [ $rv -ne 0 ]; then
            return $rv
        fi

        # Detect and correct 'common_jar_symlinks'
        common_jar_symlinks_string=$(declare -p common_jar_symlinks)
        eval "declare -A symlinks=${common_jar_symlinks_string#*=}"
        check_symlinks ${pki_common_jar_dir} ${PKI_USER} ${PKI_GROUP}
        rv=$?
        if [ $rv -ne 0 ]; then
            return $rv
        fi

        # Detect and correct 'webapps_jar_symlinks'
        webapps_jar_symlinks_string=$(declare -p webapps_jar_symlinks)
        eval "declare -A symlinks=${webapps_jar_symlinks_string#*=}"
        check_symlinks ${pki_webapps_jar_dir} ${PKI_USER} ${PKI_GROUP}
        rv=$?
        if [ $rv -ne 0 ]; then
            return $rv
        fi

        # Detect and correct 'systemd_symlinks'
        systemd_symlinks_string=$(declare -p systemd_symlinks)
        eval "declare -A symlinks=${systemd_symlinks_string#*=}"
        check_symlinks ${pki_systemd_dir} ${PKI_USER} ${PKI_GROUP}
        rv=$?
        if [ $rv -ne 0 ]; then
            return $rv
        fi
    fi

    return 0
}

# NOTE:  This code will NOT be executed if the file called
#        '${PKI_INSTANCE_PATH}/conf/DOGTAG_10_UPDATE_MARKER' exists!
update_cs_cfg_for_dogtag_10()
{
    # declare a simple array (to maintain specified parameter order)
    # and specify Dogtag 10 'CS.cfg' specific parameters (CA specific)
    declare -a dogtag_10_cs_cfg_parameters=(
        processor.caDoRevoke.authorityId=ca
        processor.caDoRevoke.authzMgr=BasicAclAuthz
        processor.caDoRevoke.authzResourceName=certServer.ee.certificates
        processor.caDoRevoke.getClientCert=false
        processor.caDoRevoke-agent.authMgr=certUserDBAuthMgr
        processor.caDoRevoke-agent.authorityId=ca
        processor.caDoRevoke-agent.authzMgr=BasicAclAuthz
        processor.caDoRevoke-agent.authzResourceName=certServer.ca.certificates
        processor.caDoRevoke-agent.getClientCert=true
        processor.caDoUnrevoke.authMgr=certUserDBAuthMgr
        processor.caDoUnrevoke.authorityId=ca
        processor.caDoUnrevoke.authzMgr=BasicAclAuthz
        processor.caDoUnrevoke.authzResourceName=certServer.ca.certificate
        processor.caDoUnrevoke.getClientCert=true
        processor.caProfileProcess.authMgr=certUserDBAuthMgr
        processor.caProfileProcess.authorityId=ca
        processor.caProfileProcess.authzMgr=BasicAclAuthz
        processor.caProfileProcess.authzResourceName=certServer.ca.request.profile
        processor.caProfileProcess.getClientCert=true
        processor.caProfileSubmit.authorityId=ca
        processor.caProfileSubmit.authzMgr=BasicAclAuthz
        processor.caProfileSubmit.authzResourceName=certServer.ee.profile
        processor.caProfileSubmit.getClientCert=false)

    # Append ANY missing Dogtag 10 CFG parameter to the end of the 'CS.cfg'
    for key in "${!dogtag_10_cs_cfg_parameters[@]}"
    do
        line="${dogtag_10_cs_cfg_parameters[${key}]}"
        grep -q ${line} ${pki_instance_configuration_file}
        rv=$?
        if [ ${rv} -ne 0 ] ; then
            echo "INFO:  Appending '${line}' to"\
                 "'${pki_instance_configuration_file}'"
            echo ${line} >> ${pki_instance_configuration_file}
        fi
    done

    # Create a MARKER to indicate that this update has been completed
    touch ${PKI_INSTANCE_PATH}/conf/DOGTAG_10_UPDATE_MARKER
}

start_instance()
{
    rv=0

    if [ -f ${RESTART_SERVER} ] ; then
        rm -f ${RESTART_SERVER}
    fi

    # Verify symbolic links (detecting and correcting them if possible)
    verify_symlinks
    rv=$?
    if [ $rv -ne 0 ] ; then
        return $rv
    fi

    # Invoke the initscript for this instance
    case $PKI_SUBSYSTEM_TYPE in
        ca|kra|ocsp|tks)

            # If required, update 'CS.cfg' from Dogtag 9 -> Dogtag 10
            if   [ ${PKI_SUBSYSTEM_TYPE} == "ca" ]  &&
                 [ ! -e ${PKI_INSTANCE_PATH}/conf/DOGTAG_10_UPDATE_MARKER ]
            then
                 update_cs_cfg_for_dogtag_10
            fi

            # We must export the service name so that the systemd version
            # of the tomcat6 init script knows which instance specific
            # configuration file to source.
            export SERVICE_NAME=$PKI_INSTANCE_ID

            if [ -x /usr/sbin/selinuxenabled ] && /usr/sbin/selinuxenabled; then
                /usr/bin/runcon -t pki_tomcat_script_t \
                     $PKI_INSTANCE_INITSCRIPT start
                rv=$?
            else
                $PKI_INSTANCE_INITSCRIPT start
                rv=$?
            fi
            ;;
        ra|tps)
            $PKI_INSTANCE_INITSCRIPT start
            rv=$?
            ;;
    esac

    if [ $rv -ne 0 ] ; then
        return $rv
    fi

    # On Tomcat subsystems, make certain that the service has started
    case $PKI_SUBSYSTEM_TYPE in
        ca|kra|ocsp|tks)
            count=0
            tries=30
            port=`grep '^pkicreate.unsecure_port=' ${pki_instance_configuration_file} | cut -b25- -`
            while [ $count -lt $tries ]
            do
                netstat -antl | grep ${port} > /dev/null
                netrv=$?
                if [ $netrv -eq 0 ] ; then
                    break;
                fi
                sleep 1
                let count=$count+1;
            done
            if [ $netrv -ne 0 ] ; then
                return 1
            fi
            ;;
    esac

    if [ $rv -eq 0 ] ; then
        # From the PKI point of view a returned error code of 6 implies
        # that the program is not "configured". An error code of 1 implies
        # that the program was "configured" but must still be restarted.
        #
        # If the return code is 6 return this value unchanged to the
        # calling routine so that the total number of configuration errors
        # may be counted. Other return codes are ignored.
        #
        check_pki_configuration_status
        rv=$?
        if [ $rv -eq 6 ]; then
            # 6 program is not configured
            return 6
        else
            # 0 success

            # Tomcat instances automatically place pid files under
            # '/var/run' and lock files under '/var/lock/subsys'.
            #
            # However, since PKI subsystem instances can have any name,
            # in order to identify the PKI subsystem type of a particular
            # PKI instance, we create a separate "pki subsystem identity"
            # symlink to the PKI instance pid file and place it under
            # '/var/run/pki/<pki subsystem>', and a separate
            # "pki subsystem identity" symlink to the PKI instance
            # lock file and place it under '/var/lock/pki/<pki subsystem>'.
            #
            case $PKI_SUBSYSTEM_TYPE in
                ca|kra|ocsp|tks)
                    if [ -h ${PKI_PIDFILE} ]; then
                        rm -f ${PKI_PIDFILE}
                    fi
                    if [ -f ${TOMCAT_PIDFILE} ]; then
                        ln -s ${TOMCAT_PIDFILE} ${PKI_PIDFILE}
                        chown -h ${TOMCAT_USER}:${TOMCAT_GROUP} ${PKI_PIDFILE}
                    fi
                    if [ -h ${PKI_LOCKFILE} ]; then
                        rm -f ${PKI_LOCKFILE}
                    fi
                    if [ -f ${TOMCAT_LOCKFILE} ]; then
                        ln -s ${TOMCAT_LOCKFILE} ${PKI_LOCKFILE}
                    fi
                    ;;
            esac

            return 0
        fi
    fi
    return $rv
}

stop_instance()
{
    rv=0

    export SERVICE_NAME=$PKI_INSTANCE_ID
    # Invoke the initscript for this instance
    $PKI_INSTANCE_INITSCRIPT stop
    rv=$?

    # On Tomcat subsystems, always remove the "pki subsystem identity" symlinks
    # that were previously associated with the Tomcat 'pid' and 'lock' files.
    case $PKI_SUBSYSTEM_TYPE in
        ca|kra|ocsp|tks)
            if [ -h ${PKI_PIDFILE} ]; then
                rm -f ${PKI_PIDFILE}
            fi
            if [ -h ${PKI_LOCKFILE} ]; then
                rm -f ${PKI_LOCKFILE}
            fi
            ;;
    esac

    return $rv
}

start()
{
    error_rv=0
    rv=0
    config_errors=0
    errors=0

    if [ ${TOTAL_PKI_REGISTRY_ENTRIES} -eq 0 ]; then
        echo
        echo "ERROR:  No '${PKI_TYPE}' instances installed!"
        # 5 program is not installed
        return 5
    fi

    if [ ${TOTAL_PKI_REGISTRY_ENTRIES} -gt 1 ]; then
        echo "BEGIN STARTING '${PKI_TYPE}' INSTANCES:"
    fi

    # Start every PKI instance of this type that isn't already running
    for PKI_REGISTRY_ENTRY in ${PKI_REGISTRY_ENTRIES}; do
        # Source values associated with this particular PKI instance
        [ -f ${PKI_REGISTRY_ENTRY} ] &&
        . ${PKI_REGISTRY_ENTRY}

        [ ${TOTAL_PKI_REGISTRY_ENTRIES} -gt 1 ] && echo

        start_instance
        rv=$?
        if [ $rv = 6 ] ; then
            # Since at least ONE configuration error exists, then there
            # is at least ONE unconfigured instance from the PKI point
            # of view.
            #
            # However, it must still be considered that the
            # instance is "running" from the point of view of other
            # OS programs such as 'chkconfig'.
            #
            # Therefore, ignore non-zero return codes resulting
            # from configuration errors.
            #

            config_errors=`expr $config_errors + 1`
            rv=0
        elif [ $rv != 0 ] ; then
            errors=`expr $errors + 1`
            error_rv=$rv
        fi
    done

    if [ ${TOTAL_PKI_REGISTRY_ENTRIES} -gt ${errors} ] ; then
        touch ${lockfile}
        chmod 00600 ${lockfile}
    fi

    # ONLY print a "WARNING" message if multiple
    # instances are being examined
    if [ ${TOTAL_PKI_REGISTRY_ENTRIES} -gt 1 ] ; then
        # NOTE:  "bad" return code(s) OVERRIDE configuration errors!
        if [ ${errors} -eq 1 ]; then
            # Since only ONE error exists, return that "bad" error code.
            rv=${error_rv}
        elif [ ${errors} -gt 1 ]; then
            # Since MORE than ONE error exists, return an OVERALL status
            # of "1 generic or unspecified error (current practice)"
            rv=1
        fi

        if [ ${errors} -ge 1 ]; then
            echo
            echo -n "WARNING:  "
            echo -n "${errors} of ${TOTAL_PKI_REGISTRY_ENTRIES} "
            echo -n "'${PKI_TYPE}' instances failed to start!"
            echo
        fi

        if [ ${TOTAL_UNCONFIGURED_PKI_ENTRIES} -ge 1 ]; then
            echo
            echo -n "WARNING:  "
            echo -n "${TOTAL_UNCONFIGURED_PKI_ENTRIES} "
            echo -n "of ${TOTAL_PKI_REGISTRY_ENTRIES} "
            echo -n "'${PKI_TYPE}' instances MUST be configured!"
            echo
        fi

        echo
        echo "FINISHED STARTING '${PKI_TYPE}' INSTANCE(S)."
    fi

    return $rv
}

stop()
{
    error_rv=0
    rv=0
    errors=0

    if [ ${TOTAL_PKI_REGISTRY_ENTRIES} -eq 0 ]; then
        echo
        echo "ERROR:  No '${PKI_TYPE}' instances installed!"
        # 5 program is not installed
        return 5
    fi

    if [ ${TOTAL_PKI_REGISTRY_ENTRIES} -gt 1 ] ; then
        echo "BEGIN SHUTTING DOWN '${PKI_TYPE}' INSTANCE(S):"
    fi

    # Shutdown every PKI instance of this type that is running
    for PKI_REGISTRY_ENTRY in ${PKI_REGISTRY_ENTRIES}; do
        # Source values associated with this particular PKI instance
        [ -f ${PKI_REGISTRY_ENTRY} ] &&
        . ${PKI_REGISTRY_ENTRY}

        [ ${TOTAL_PKI_REGISTRY_ENTRIES} -gt 1 ] && echo

        stop_instance
        rv=$?
        if [ $rv != 0 ] ; then
            errors=`expr $errors + 1`
            error_rv=$rv
        fi
    done

    if [ ${errors} -eq 0 ] ; then
        rm -f ${lockfile}
    fi

    # ONLY print a "WARNING" message if multiple
    # instances are being examined
    if [ ${TOTAL_PKI_REGISTRY_ENTRIES} -gt 1 ] ; then
        if [ ${errors} -eq 1 ]; then
            # Since only ONE error exists, return that "bad" error code.
            rv=${error_rv}
        elif [ ${errors} -gt 1 ]; then
            # Since MORE than ONE error exists, return an OVERALL status
            # of "1 generic or unspecified error (current practice)"
            rv=1
        fi

        if [ ${errors} -ge 1 ]; then
            echo
            echo -n "WARNING:  "
            echo -n "${errors} of ${TOTAL_PKI_REGISTRY_ENTRIES} "
            echo -n "'${PKI_TYPE}' instances were "
            echo -n "unsuccessfully stopped!"
            echo
        fi

        echo
        echo "FINISHED SHUTTING DOWN '${PKI_TYPE}' INSTANCE(S)."
    fi

    return $rv
}

restart()
{
    stop
    sleep 2
    start

    return $?
}

registry_status()
{
    error_rv=0
    rv=0
    errors=0

    if [ ${TOTAL_PKI_REGISTRY_ENTRIES} -eq 0 ]; then
        echo
        echo "ERROR:  No '${PKI_TYPE}' instances installed!"
        # 4 program or service status is unknown
        return 4
    fi

    if [ ${TOTAL_PKI_REGISTRY_ENTRIES} -gt 1 ] ; then
        echo "REPORT STATUS OF '${PKI_TYPE}' INSTANCE(S):"
    fi

    # Obtain status of every PKI instance of this type
    for PKI_REGISTRY_ENTRY in ${PKI_REGISTRY_ENTRIES}; do
        # Source values associated with this particular PKI instance
        [ -f ${PKI_REGISTRY_ENTRY} ] &&
        . ${PKI_REGISTRY_ENTRY}

        [ ${TOTAL_PKI_REGISTRY_ENTRIES} -gt 1 ] && echo

        case $PKI_SUBSYSTEM_TYPE in
            ca|kra|ocsp|tks)
                if [ $SYSTEMD ]; then
                    display_instance_status_systemd
                else
                    display_instance_status
                fi
                rv=$?
                ;;
            tps|ra)
                display_instance_status
                rv=$?
                ;;
        esac
        if [ $rv -ne 0 ] ; then
            errors=`expr $errors + 1`
            error_rv=$rv
        fi
    done

    # ONLY print a "WARNING" message if multiple
    # instances are being examined
    if [ ${TOTAL_PKI_REGISTRY_ENTRIES} -gt 1 ] ; then
        if [ ${errors} -eq 1 ]; then
            # Since only ONE error exists, return that "bad" error code.
            rv=${error_rv}
        elif [ ${errors} -gt 1 ]; then
            # Since MORE than ONE error exists, return an OVERALL status
            # of "4 - program or service status is unknown"
            rv=4
        fi

        if [ ${errors} -ge 1 ]; then
            echo
            echo -n "WARNING:  "
            echo -n "${errors} of ${TOTAL_PKI_REGISTRY_ENTRIES} "
            echo -n "'${PKI_TYPE}' instances reported status failures!"
            echo
        fi

        if [ ${TOTAL_UNCONFIGURED_PKI_ENTRIES} -ge 1 ]; then
            echo
            echo -n "WARNING:  "
            echo -n "${TOTAL_UNCONFIGURED_PKI_ENTRIES} "
            echo -n "of ${TOTAL_PKI_REGISTRY_ENTRIES} "
            echo -n "'${PKI_TYPE}' instances MUST be configured!"
            echo
        fi

        echo
        echo "FINISHED REPORTING STATUS OF '${PKI_TYPE}' INSTANCE(S)."
    fi

    return $rv
}