Merge branch 'vmgrid'

1 files changed, 208 insertions, 0 deletions

diff --git a/os-plugins/plugins/xen/files/xen.examples/scripts/vtpm-impl b/os-plugins/plugins/xen/files/xen.examples/scripts/vtpm-impl
new file mode 100644
index 00000000..4f9a1fd8
--- /dev/null
+++ b/os-plugins/plugins/xen/files/xen.examples/scripts/vtpm-impl
@@ -0,0 +1,208 @@
+#!/bin/bash
+# ===================================================================
+# 
+# Copyright (c) 2005, Intel Corp.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without 
+# modification, are permitted provided that the following conditions 
+# are met:
+#
+#   * Redistributions of source code must retain the above copyright 
+#     notice, this list of conditions and the following disclaimer.
+#   * Redistributions in binary form must reproduce the above 
+#     copyright notice, this list of conditions and the following 
+#     disclaimer in the documentation and/or other materials provided 
+#     with the distribution.
+#   * Neither the name of Intel Corporation nor the names of its 
+#     contributors may be used to endorse or promote products derived
+#     from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 
+# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 
+# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+# OF THE POSSIBILITY OF SUCH DAMAGE.
+# ===================================================================
+
+#            |        SRC        |    TAG  |      CMD SIZE     |        ORD       |mtype|strt
+TPM_CMD_OPEN=\\x00\\x00\\x00\\x00\\x01\\xc1\\x00\\x00\\x00\\x11\\x01\\x00\\x00\\x01\\x01\\x01
+TPM_CMD_RESM=\\x00\\x00\\x00\\x00\\x01\\xc1\\x00\\x00\\x00\\x11\\x01\\x00\\x00\\x01\\x01\\x02
+TPM_CMD_CLOS=\\x00\\x00\\x00\\x00\\x01\\xc1\\x00\\x00\\x00\\x0e\\x01\\x00\\x00\\x02
+TPM_CMD_DELE=\\x00\\x00\\x00\\x00\\x01\\xc1\\x00\\x00\\x00\\x0e\\x01\\x00\\x00\\x03
+
+TPM_TYPE_PVM=\\x01
+TPM_TYPE_HVM=\\x02
+
+TPM_SUCCESS=00000000
+
+TX_VTPM_MANAGER=/var/vtpm/fifos/from_console.fifo
+RX_VTPM_MANAGER=/var/vtpm/fifos/to_console.fifo
+
+VTPM_MIG=/usr/bin/vtpm_migrator
+
+# -------------------- Helpers for binary streams -----------
+
+function str_to_hex32() {
+ printf "%0.8x" $1
+}
+
+function hex32_to_bin() {
+ local inst=$(str_to_hex32 $1);
+ 
+ local n1=`echo $inst | sed 's/\(..\)....../\\\\x\1/'`
+ local n2=`echo $inst | sed 's/..\(..\)..../\\\\x\1/'`
+ local n3=`echo $inst | sed 's/....\(..\)../\\\\x\1/'`
+ local n4=`echo $inst | sed 's/......\(..\)/\\\\x\1/'`
+
+ echo "$n1$n2$n3$n4"
+}
+
+function vtpm_manager_cmd() {
+ local cmd=$1;
+ local inst=$2;
+ local inst_bin=$(hex32_to_bin $inst);
+
+ claim_lock vtpm_mgr
+
+ #send cmd to vtpm_manager
+ printf "$cmd$inst_bin" > $TX_VTPM_MANAGER
+
+ #recv response
+ set +e
+ local resp_hex=`dd skip=10 bs=1 count=4 if=$RX_VTPM_MANAGER 2> /dev/null | xxd -ps`
+ set -e
+
+ release_lock vtpm_mgr
+
+ #return whether the command was successful
+ if [ $resp_hex -ne $TPM_SUCCESS ]; then
+   vtpm_fatal_error=1
+   false
+  else
+   true
+ fi
+}
+
+# Helper to get vm type to pass to vtpm_manager open/resume
+function vtpm_get_type() {
+ local inst=$(xenstore_read $XENBUS_PATH/frontend-id)
+ local vm=$(xenstore_read /local/domain/$inst/vm)
+ if [ "$vm" != "" ]; then
+  local ostype=$(xenstore-read $vm/image/ostype)
+  if [ "$ostype" == "hvm" ]; then
+   echo $TPM_TYPE_HVM;
+  else
+   echo $TPM_TYPE_PVM;
+  fi
+ fi
+}
+
+# ------------------ Command handlers -----------------
+
+# Create new vtpm instance & set it up for use
+function vtpm_create () {
+ # Creation is handled implicitly by the manager on first setup
+ # so just set it up for use
+ $(vtpm_start $1)
+}
+
+# Setup vtpm instance for use.
+function vtpm_start() {
+ local vmtype=$(vtpm_get_type);
+ $(vtpm_manager_cmd $TPM_CMD_OPEN$vmtype $1)
+}
+
+function vtpm_resume() {
+ local vmtype=$(vtpm_get_type);
+ $(vtpm_manager_cmd $TPM_CMD_RESM$vmtype $1)
+}
+
+# Reset the vtpm AKA clear PCRs
+function vtpm_reset() {
+ #not used by current implemenation
+ true
+}
+
+# Shutdown the vtpm while the vm is down
+# This could be a suspend of shutdown
+# we cannot distinquish, so save the state
+# and decide on startup if we should keep is
+function vtpm_suspend() {
+ $(vtpm_manager_cmd $TPM_CMD_CLOS $1)
+}
+
+
+function vtpm_delete() {
+ local inst=$1
+ if $(vtpm_manager_cmd $TPM_CMD_DELE $inst); then
+   rm -f /var/vtpm/vtpm_dm_$1.data
+   true
+ else 
+   vtpm_fatal_error=1
+   false
+ fi
+}
+
+# Perform a migration step. This function differentiates between migration
+# to the local host or to a remote machine.
+# Parameters:
+# 1st: destination host to migrate to
+# 2nd: name of the domain to migrate
+# 3rd: the migration step to perform
+function vtpm_migrate() {
+ local instance res
+
+ instance=$(vtpmdb_find_instance $2)
+ if [ "$instance" == "" ]; then
+  log err "VTPM Migratoin failed. Unable to translation of domain name"
+  echo "Error: VTPM Migration failed while looking up instance number"
+ fi
+
+ case "$3" in
+  0)
+   #Incicate migration supported
+   echo "0" 
+  ;;
+
+  1)
+   # Get Public Key from Destination
+   # Call vtpm_manager's migration part 1
+   claim_lock vtpm_mgr
+   $VTPM_MIG $1 $2 $instance $3
+   release_lock vtpm_mgr
+  ;;
+
+  2)
+   # Call manager's migration step 2 and send result to destination
+   # If successful remove from db
+   claim_lock vtpm_mgr
+   $VTPM_MIG $1 $2 $instance $3
+   release_lock vtpm_mgr
+  ;;
+
+  3)
+   if `ps x | grep "$VTPM_MIG $1"`; then
+    log err "VTPM Migration failed to complete."
+    echo "Error: VTPM Migration failed to complete."
+   fi
+  ;;
+ esac
+ 
+}
+
+
+function vtpm_migrate_recover() {
+ echo "Error: Recovery not supported yet" 
+}
+
+function vtpm_migrate_local() {
+ echo "Error: local vTPM migration not supported"
+}