[Xen-changelog] Update the TPM hotplug scripts to determine the reason of a

[Xen patchbot -unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User kaf24@xxxxxxxxxxxxxxxxxxxx
# Node ID bf176086255baefd27f223a9a5b88c27896fa7ce
# Parent  6f7c5439a6c49e0f74b673e8d7863365075086be
Update the TPM hotplug scripts to determine the reason of a
device creation (create/resume).

Signed-off-by: Stefan Berger <stefanb@xxxxxxxxxx>

diff -r 6f7c5439a6c4 -r bf176086255b tools/examples/vtpm
--- a/tools/examples/vtpm       Fri Feb  3 19:30:54 2006
+++ b/tools/examples/vtpm       Sat Feb  4 09:58:28 2006
@@ -5,16 +5,16 @@
 
 
 case "$command" in
-    online | offline)
-        exit 0
-        ;;
-esac
-
-case "$command" in
   add)
     vtpm_create_instance
   ;;
+  online)
+    vtpm_create_instance
+  ;;
   remove)
+    vtpm_remove_instance
+  ;;
+  offline)
     vtpm_remove_instance
   ;;
 esac
diff -r 6f7c5439a6c4 -r bf176086255b tools/examples/vtpm-common.sh
--- a/tools/examples/vtpm-common.sh     Fri Feb  3 19:30:54 2006
+++ b/tools/examples/vtpm-common.sh     Sat Feb  4 09:58:28 2006
@@ -219,6 +219,17 @@
 }
 
 
+# Find the reason for the creation of this device:
+# Set global REASON variable to 'resume' or 'create'
+function get_create_reason () {
+       local resume=$(xenstore-read $XENBUS_PATH/resume)
+       if [ "$resume" == "True" ]; then
+               REASON="resume"
+       else
+               REASON="create"
+       fi
+}
+
 #Create a vTPM instance
 # If no entry in the TPM database is found, the instance is
 # created and an entry added to the database.
@@ -226,6 +237,7 @@
        local domname=$(xenstore_read "$XENBUS_PATH"/domain)
        local res
        set +e
+       get_create_reason
        find_instance $domname
        res=$?
        if [ $res -eq 0 ]; then
@@ -243,7 +255,7 @@
                add_instance $domname $instance
                if [ "$REASON" == "create" ]; then
                        vtpm_create $instance
-               elif [ "$REASON" == "hibernate" ]; then
+               elif [ "$REASON" == "resume" ]; then
                        vtpm_resume $instance $domname
                else
                        #default case for 'now'
@@ -252,11 +264,12 @@
        fi
        if [ "$REASON" == "create" ]; then
                vtpm_reset $instance
-       elif [ "$REASON" == "hibernate" ]; then
+       elif [ "$REASON" == "resume" ]; then
                vtpm_setup $instance
        else
                #default case for 'now'
-               vtpm_reset $instance
+               #vtpm_reset $instance
+               true
        fi
        xenstore_write $XENBUS_PATH/instance $instance
        set -e
@@ -273,7 +286,7 @@
                #Something is really wrong with the DB
                log err "vTPM DB file $VTPMDB has no entry for '$domname'"
        else
-               if [ "$REASON" == "hibernate" ]; then
+               if [ "$REASON" == "suspend" ]; then
                        vtpm_suspend $instance
                fi
        fi

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