Udev jiggery-pokery

Add in the udev scripts from xen-api.git. Note these are only
installed in the xen-api-libs-specs specfile, not in the
xenserver-core specfile.

Signed-off-by: Jon Ludlam <[email protected]>

Author: Jon Ludlam

scripts/block

@@ -0,0 +1,45 @@
+#!/bin/sh
+
+TYPE=`echo ${XENBUS_PATH} | cut -f 2 -d '/'`
+DOMID=`echo ${XENBUS_PATH} | cut -f 3 -d '/'`
+DEVID=`echo ${XENBUS_PATH} | cut -f 4 -d '/'`
+
+HOTPLUG=/xapi/${DOMID}/hotplug/${TYPE}/${DEVID}
+HOTPLUG_STATUS="${XENBUS_PATH}/hotplug-status"
+
+syslog ()
+{
+	logger -tscripts-block "$*"
+}
+
+case "$1" in
+add)
+        params=$(xenstore-read "${XENBUS_PATH}/params")
+        frontend="/local/domain/${DOMID}/device/${TYPE}/${DEVID}"
+        syslog "${XENBUS_PATH}: add params=\"${params}\""
+        # We don't have PV drivers for CDROM devices, so we prevent blkback
+        # from opening the physical-device
+		xenstore-exists "${XENBUS_PATH}/no-physical-device"
+        if [ $? -ne 0 ]; then
+          physical_device=$(/usr/bin/stat --format="%t:%T" "${params}")
+          syslog "${XENBUS_PATH}: physical-device=${physical_device}"
+          xenstore-exists "${XENBUS_PATH}/physical-device"
+          if [ $? -eq 1 ]; then
+			syslog "${XENBUS_PATH}: writing physical-device=${physical-device}"
+            xenstore-write "${XENBUS_PATH}/physical-device" "${physical_device}"
+          fi
+        else
+          syslog "${XENBUS_PATH}: not writing physical-device because no-physical-device is present"
+        fi
+        xenstore-write "${HOTPLUG}/hotplug" "online"
+        xenstore-write "${HOTPLUG_STATUS}" "connected"
+	;;
+change)
+	syslog "${XENBUS_PATH}: change"
+	;;
+remove)
+	syslog "${XENBUS_PATH}: remove"
+    xenstore-rm "${HOTPLUG_STATUS}"
+	xenstore-rm "${HOTPLUG}/hotplug"
+	;;
+esac

scripts/tap

@@ -0,0 +1,27 @@
+#!/bin/sh
+
+TYPE=`echo ${XENBUS_PATH} | cut -f 2 -d '/'`
+DOMID=`echo ${XENBUS_PATH} | cut -f 3 -d '/'`
+DEVID=`echo ${XENBUS_PATH} | cut -f 4 -d '/'`
+
+XAPI=/xapi/${DOMID}/hotplug/${TYPE}/${DEVID}
+
+syslog ()
+{
+	BLKTAP=daemon
+	logger -p$BLKTAP.info -tscripts-tap "$*"
+}
+
+case "$1" in
+add)
+	syslog "$XAPI: hotplug deferred to backend change"
+	;;
+change)
+	syslog "$XAPI: backend changed"
+	xenstore-write "${XAPI}/hotplug" "online"
+	;;
+remove)
+	syslog "$XAPI: backend removed"
+	xenstore-rm "${XAPI}/hotplug"
+	;;
+esac

scripts/xen-backend.rules

@@ -0,0 +1,7 @@
+SUBSYSTEM=="xen-backend", KERNEL=="tap*", RUN+="/usr/libexec/xenopsd/tap $env{ACTION}"
+SUBSYSTEM=="xen-backend", KERNEL=="vbd*", RUN+="/usr/libexec/xenopsd/block $env{ACTION}"
+
+SUBSYSTEM=="xen-backend", KERNEL=="vif*", RUN+="/usr/libexec/xenopsd/vif $env{ACTION} type_if=vif"
+SUBSYSTEM=="net",         KERNEL=="tap*", RUN+="/usr/libexec/xenopsd/vif $env{ACTION} type_if=tap"
+
+KERNEL=="evtchn", NAME="xen/%k"