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# Startup/shutdown script for services managed by xinetd.
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# Copyright (C) 2003 Charlie Brooks
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# WARNING: Tested ONLY on Red Hat 7.3 and Fedora Core 2/4 at this time.
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# Author: Charlie Brooks <ha@HBCS.Org>
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# Description: given parameters of a service name and start|stop|status,
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# will enable, disable or report on a specified xinetd service
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# Config: all services must have a descriptor file in /etc/xinetd.d
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# Support: linux-ha@lists.linux-ha.org
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# License: GNU General Public License (GPL)
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# OCF parameters are as below:
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#######################################################################
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: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/resource.d/heartbeat}
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. ${OCF_FUNCTIONS_DIR}/.ocf-shellfuncs
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#######################################################################
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<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
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<resource-agent name="Xinetd">
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<version>1.0</version>
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Resource script for Xinetd. It starts/stops services managed
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Note that the xinetd daemon itself must be running: we are not
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going to start it or stop it ourselves.
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Important: in case the services managed by the cluster are the
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only ones enabled, you should specify the -stayalive option for
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xinetd or it will exit on Heartbeat stop. Alternatively, you may
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enable some internal service such as echo.
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<shortdesc lang="en">Manages an Xinetd service</shortdesc>
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<parameter name="service" unique="0" required="1">
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The service name managed by xinetd.
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<shortdesc lang="en">service name</shortdesc>
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<content type="string" default="" />
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<action name="start" timeout="20" />
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<action name="stop" timeout="20" />
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<action name="restart" timeout="40" />
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<action name="status" depth="0" timeout="10" interval="10" />
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<action name="monitor" depth="0" timeout="10" interval="10" />
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<action name="validate-all" timeout="5" />
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<action name="meta-data" timeout="5" />
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# don't rely on the pid file, but lookup xinetd in the list of
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pid=`ps -e -o pid,command | grep '/[x]inetd' | awk '{print $1}'`
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if kill -HUP $pid; then
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ocf_log err "Could not SigHUP xinetd superdaemon!"
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ocf_log err "perhaps we are booting after a system crash"
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ocf_log err "xinetd superdaemon process not found!"
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ocf_log err "perhaps we are currently booting the system."
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if [ "running" = "`xup_status`" ]; then
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ocf_log info "Service $service already started"
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ocf_log "info" "$0: enabling in $RCFILE"
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if $AWK '!/disable/' $RCFILE > $RCFILE.xup
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if mv $RCFILE.xup $RCFILE
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ocf_log "info" "$0: Starting"
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ocf_log "err" "Could not replace $RCFILE"
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ocf_log "err" "Could not rewrite $RCFILE!"
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if [ "stopped" = "`xup_status`" ]; then
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ocf_log info "Service $service already stopped"
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ocf_log "info" "$0: disabling in $RCFILE"
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if $AWK '!/disable/;/{/{printf "\tdisable\t\t\t= yes\n"}' $RCFILE >$RCFILE.xup
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if mv $RCFILE.xup $RCFILE
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ocf_log "info" "$0: Shutting down"
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ocf_log "err" "Could not replace $RCFILE"
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ocf_log "err" "Could not rewrite $RCFILE!"
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echo "Usage: $0 {start|stop|restart|status|monitor|validate-all|meta-data}"
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if [ -f $PIDFILE ]; then
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return $OCF_NOT_RUNNING
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# Check if the arg is a valid integer
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# Examples of valid integer: "1080", "1", "0080", "0", "0000"
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# Examples of invalid integer: "1080bad", ""
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*[!0-9]*) #got invalid char
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*) #no invalid char, and has at least one digit, so is a good integer
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# Check if the arg is a valid umask
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# Examples of valid umask: "100", "1", "000", "0"
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# Examples of invalid umask: "108", "bad", "1111" ""
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# Check (part of) the attributes based on xinetd.conf(5) and xinetd source code
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check_attributes () {
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# Empty these attributes before validating them
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unset socket_type wait server user protocol port group instances \
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type flags disable nice umask
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for SECTION in $*; do
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*=*) # Check to see if we need to export the previous name=value
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if [ -n "$VAR" ]; then
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# Save the "new" name=value pair in VAR
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*) # This section does not have an equal sign, therefore it is part of
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# the *previous* name=value pair, thus we will append it to the
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# previous name=value assignment.
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# A final cleanup step.
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# Do we need to export VAR ?
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if [ -n "$VAR" ]; then
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if [ $? -ne 0 ]; then
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return $OCF_ERR_GENERIC
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"") disable=no # Default to no.
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*) ocf_log err "Invalid value for disable [$disable] in $RCFILE, yes|no please"
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exit $OCF_ERR_CONFIGURED
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"") socket_type=dgram
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# Default value for socket_type is dgram.
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stream|dgram|raw|seqpacket)
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*) ocf_log err "Invalid socket type $socket_type in $RCFILE"
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exit $OCF_ERR_CONFIGURED
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case $wait in # Wait has no default value.
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*) ocf_log err "Invalid waid [$wait] in $RCFILE, yes|no please"
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exit $OCF_ERR_CONFIGURED
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# Default value for type is RPC or INTERNAL, determined at compile time.
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# It may be a list in $RCFILE, however we only capture the first one.
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""|RPC|INTERNAL|UNLISTED|SPECIAL|TCPMUX|TCPMUXPLUS)
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*) ocf_log err "Invalid service type [$type] in $RCFILE"
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exit $OCF_ERR_CONFIGURED
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if [ ! -z "$type" -a "INTERNAL" != "$type" ]; then
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# Type is explicitly set to EXTERNAL, hence server and user are necessary.
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"") ocf_log err "Please specify server in $RCFILE"
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exit $OCF_ERR_CONFIGURED
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/*) if [ -x $server ]; then
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ocf_log err "Server $server is not executable"
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exit $OCF_ERR_CONFIGURED
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*) ocf_log err "Server $server is not of obsolute path"
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exit $OCF_ERR_CONFIGURED
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"") ocf_log err "Please specify user in $RCFILE"
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exit $OCF_ERR_CONFIGURED
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*) getent passwd $user >/dev/null 2>&1
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if [ $? -ne 0 ]; then
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ocf_log err "User $user does not exist!"
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exit $OCF_ERR_CONFIGURED
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# Protocol is necessary when type is MUX
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if [ $type = "TCPMUX" -o $type ="TCPMUXPLUS" ]; then
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"") ocf_log err "Please specify protocol in $RCFILE"
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exit $OCF_ERR_CONFIGURED
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*) get protocols $protocol >/dev/null 2>&1
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if [ $? -ne 0 ]; then
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ocf_log err "Invalid protocol [$protocol] in $RCFILE"
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exit $OCF_ERR_CONFIGURED
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"") ;; # OK to be empty, the group for $user is used
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*) getent group $group >/dev/null 2>&1
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if [ $? -ne 0 ]; then
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ocf_log err "Group $group does not exist!"
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exit $OCF_ERR_CONFIGURED
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# Default value for flags is REUSE.
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# It may be a list in $RCFILE, however we only capture the first one.
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REUSE|INTERCEPT|NORETRY|IDONLY|NAMEINARGS|NODELAY|KEEPALIVE|NOLIBWRAP|SENSOR|IPv4|IPv6) ;;
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*) ocf_log err "Invalid flags [$flags] in $RCFILE"
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exit $OCF_ERR_CONFIGURED
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""|[Uu][Nn][Ll][Ii][Mm][Ii][Ti][Ee][Dd]) ;;
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*) if CheckInteger $instances; then
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ocf_log err "Invalid instances [$instances] in $RCFILE, non-negative integer expected"
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exit $OCF_ERR_CONFIGURED
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*) local foo=`echo $nice | sed s/^-//`
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if CheckInteger $foo; then
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ocf_log err "Invalid nice [$nice] in $RCFILE, integer expected"
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exit $OCF_ERR_CONFIGURED
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if [ ! -z $umask ]; then
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if CheckUmask $umask; then
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ocf_log err "Invalid umask [$umask] in $RCFILE"
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exit $OCF_ERR_CONFIGURED
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xup_validate_all () {
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# Parse the $RCFILE for necessary attributes, assume $RCFILE does not
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# contain "include" or "includedir" directives.
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leading_space="^$space"
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trailing_space="$space$"
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# Strip comments, delete blank lines.
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stripped=`sed -e "/^$comment/d" -e "/=$trailing_space/d" -e "/$leading_space$/d" $RCFILE`
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stripped=`echo $stripped`
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# At this stage, stripped="service <service-name> { attribute-list }".
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ocf_log err "Descriptor file $RCFILE contains extra \"#\", which is forbidden"
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exit $OCF_ERR_CONFIGURED
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ocf_log err "Attribute needs a space before operator ="
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exit $OCF_ERR_CONFIGURED
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ocf_log err "Attribute needs a space before operator [+-]="
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exit $OCF_ERR_CONFIGURED
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# Strip leading "service" keyword, remove spaces surrounding "=".
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stripped=`echo $stripped | sed -e "s/^service//" -e "s/-=/ /g" \
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-e "s/+=/=/g" -e "s/$space=$space/=/g"`
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# At this stage, stripped=" <service-name> { attribute-list }",
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# note that the leading space before <service-name> is significant.
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stripped=`echo $stripped | sed -e "s/$leading_space[^ \t]\+$space//"`
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# At this stage, stripped="{ attribute-list }"
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stripped=`echo $stripped | sed -e "s/^{//" -e "s/}$//"`
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# At this stage, stripped=<attribute-list>
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check_attributes "$stripped"
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ocf_log err "Attrbute list should be contained in {}"
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exit $OCF_ERR_CONFIGURED
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ocf_log err "Service name should follow the service key word"
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exit $OCF_ERR_CONFIGURED
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ocf_log err "Service key word is necessary in $RCFILE"
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exit $OCF_ERR_CONFIGURED
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# These operations do not require OCF instance parameters to be set
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[ -z "$OCF_RESKEY_service" ]
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ocf_log err "Please set OCF_RESKEY_service to the service managed by Xinetd"
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if [ "$1" = "start" ]; then
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exit $OCF_NOT_RUNNING
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service=$OCF_RESKEY_service
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RCFILE=/etc/xinetd.d/$service
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PIDFILE=$HA_VARRUN/xup$service
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# Make sure the OCF_RESKEY_service is a valid xinetd service name
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if [ ! -f $RCFILE ]; then
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ocf_log err "Service descriptor $RCFILE not found!"
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if [ "$1" = "start" ]; then
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exit $OCF_NOT_RUNNING
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# See how we were called.
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xup_status > /dev/null
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exit $OCF_ERR_UNIMPLEMENTED
added
removed
heartbeat/Xinetd
