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#!/usr/bin/python
# Copyright (C) International Business Machines Corp., 2007
# Author: Stefan Berger <stefanb@us.ibm.com>
# VM creation test with labeled VM and labeled VDI
from XmTestLib import xapi
from XmTestLib.XenAPIDomain import XmTestAPIDomain
from XmTestLib import *
from xen.xend import XendAPIConstants
from xen.util import acmpolicy, security, xsconstants
import commands
import os
vm_label_red = xsconstants.ACM_POLICY_ID + ":xm-test:red"
vm_label_green = xsconstants.ACM_POLICY_ID + ":xm-test:green"
vdi_label_red = xsconstants.ACM_POLICY_ID + ":xm-test:red"
vdi_label_green = xsconstants.ACM_POLICY_ID + ":xm-test:green"
vdi_file = "/dev/ram0"
vdi_path = "phy:" + vdi_file
#Note:
# If during the suspend/resume operations 'red' instead of 'green' is
# used, the Chinese Wall policy goes into effect and disallows the
# suspended VM from being resumed...
try:
# XmTestAPIDomain tries to establish a connection to XenD
domain = XmTestAPIDomain(extraConfig={ 'security_label' : vm_label_red })
except Exception, e:
SKIP("Skipping test. Error: %s" % str(e))
vm_uuid = domain.get_uuid()
session = xapi.connect()
xstype = session.xenapi.XSPolicy.get_xstype()
if int(xstype) & xsconstants.XS_POLICY_ACM == 0:
SKIP("ACM not enabled/compiled in Xen")
f = open("xm-test-security_policy.xml", 'r')
if f:
newpolicyxml = f.read()
f.close()
else:
FAIL("Could not read 'xm-test' policy")
policystate = session.xenapi.XSPolicy.get_xspolicy()
if int(policystate['type']) == 0:
policystate = session.xenapi.XSPolicy.set_xspolicy(
xsconstants.XS_POLICY_ACM,
newpolicyxml,
xsconstants.XS_INST_BOOT | xsconstants.XS_INST_LOAD,
True)
if int(policystate['flags']) == -1:
FAIL("Could not set the new policy.")
policystate = session.xenapi.XSPolicy.get_xspolicy()
print "policystate = %s" % policystate
acm_ref = policystate['xs_ref']
#
# Some tests with labeling of resources
#
labels = session.xenapi.XSPolicy.get_labeled_resources()
print "labeled resources are:\n%s" % labels
oldlabel = session.xenapi.XSPolicy.get_resource_label("phy:/dev/ram0")
rc = session.xenapi.XSPolicy.set_resource_label("phy:/dev/ram0", "",
oldlabel)
rc = session.xenapi.XSPolicy.set_resource_label("phy:/dev/ram0",
vdi_label_green,
"")
res = session.xenapi.XSPolicy.get_resource_label("phy:/dev/ram0")
if res != vdi_label_green:
FAIL("(1) get_resource_label returned unexpected result %s, wanted %s" %
(res, vdi_label_green))
#
# Some test with labeling of VMs
#
res = session.xenapi.VM.get_security_label(vm_uuid)
if res != vm_label_red:
FAIL("VM.get_security_label returned wrong security label '%s'." % res)
res = session.xenapi.VM.set_security_label(vm_uuid, vm_label_green,
vm_label_red)
res = session.xenapi.VM.get_security_label(vm_uuid)
if res != vm_label_green:
FAIL("VM does not show expected label '%s' but '%s'." %
(vm_label_green, res))
res = session.xenapi.VM.set_security_label(vm_uuid, "", vm_label_green)
if int(res) != 0:
FAIL("Should be able to unlabel the domain while it's halted.")
res = session.xenapi.VM.get_security_label(vm_uuid)
if res != "":
FAIL("Unexpected VM security label after removal: %s" % res)
res = session.xenapi.VM.set_security_label(vm_uuid, vm_label_red, res)
if int(res) != 0:
FAIL("Could not label the VM to '%s'" % vm_label_red)
res = session.xenapi.VM.get_security_label(vm_uuid)
if res != vm_label_red:
FAIL("VM has wrong label '%s', expected '%s'." % (res, vm_label_red))
sr_uuid = session.xenapi.SR.get_by_name_label("Local")
if len(sr_uuid) == 0:
FAIL("Could not get a handle on SR 'Local'")
vdi_rec = { 'name_label' : "My disk",
'SR' : sr_uuid[0],
'virtual_size': 0,
'sector_size' : 512,
'parent' : '',
'SR_name' : 'Local',
'type' : 'system',
'shareable' : False,
'read-only' : False,
'other_config': {'location': vdi_path}
}
vdi_ref = session.xenapi.VDI.create(vdi_rec)
res = session.xenapi.VDI.get_name_label(vdi_ref)
if res != vdi_rec['name_label']:
print "Destroying VDI now"
session.xenapi.VDI.destroy(vdi_ref)
FAIL("VDI_get_name_label return wrong information")
res = session.xenapi.VDI.get_record(vdi_ref)
print "vdi_record : %s" % res
oldlabel = session.xenapi.XSPolicy.get_resource_label(vdi_path)
#Remove label from VDI device
rc = session.xenapi.XSPolicy.set_resource_label(vdi_path,
"",
oldlabel)
# Attach a VBD to the VM
vbd_rec = { 'VM' : vm_uuid,
'VDI' : vdi_ref,
'device' : "xvda1",
'mode' : 1,
'bootable': 0,
}
vbd_ref = session.xenapi.VBD.create(vbd_rec)
res = session.xenapi.VBD.get_record(vbd_ref)
try:
domain.start(noConsole=True)
# Should not get here.
print "Destroying VDI now"
session.xenapi.VDI.destroy(vdi_ref)
FAIL("Could start VM with a VBD that it is not allowed to access.")
except:
pass
print "Could not create domain -- that's good"
#
# Label the VDI now
#
rc = session.xenapi.VDI.set_security_label(vdi_ref, vdi_label_red, "")
if int(rc) != 0:
FAIL("Could not set the VDI label to '%s'" % vdi_label_red)
label = session.xenapi.VDI.get_security_label(vdi_ref)
if label != vdi_label_red:
session.xenapi.VDI.destroy(vdi_ref)
FAIL("Unexpected label '%s' on VDI, wanted '%s'" %
(label, vdi_label_red))
rc = session.xenapi.VDI.set_security_label(vdi_ref, "", label)
if int(rc) != 0:
session.xenapi.VDI.destroy(vdi_ref)
FAIL("Should be able to unlabel VDI.")
rc = session.xenapi.VDI.set_security_label(vdi_ref, vdi_label_red, "")
if int(rc) != 0:
session.xenapi.VDI.destroy(vdi_ref)
FAIL("Should be able to label VDI with label '%s'" % vid_label_red)
res = session.xenapi.XSPolicy.get_resource_label(vdi_path)
if res != vdi_label_red:
session.xenapi.VDI.destroy(vdi_ref)
FAIL("(2) get_resource_label on %s returned unexpected result %s, wanted '%s'" %
(vdi_path, res, vdi_label_red))
res = session.xenapi.VDI.get_security_label(vdi_ref)
if res != vdi_label_red:
session.xenapi.VDI.destroy(vdi_ref)
FAIL("get_security_label returned unexpected result %s, wanted '%s'" %
(res, vdi_label_red))
domain.start(noConsole=True)
console = domain.getConsole()
domName = domain.getName()
try:
run = console.runCmd("cat /proc/interrupts")
except ConsoleError, e:
saveLog(console.getHistory())
FAIL("Could not access proc-filesystem")
# Try to relabel while VM is running
try:
res = session.xenapi.VM.set_security_label(vm_uuid, vm_label_green,
vm_label_red)
except:
pass
lab = session.xenapi.VM.get_security_label(vm_uuid)
if lab == vm_label_green:
FAIL("Should not be able to reset the security label while running."
"tried to set to %s, got %s, old: %s" %(vm_label_green, lab,
vm_label_red))
#
# Suspend the domain and relabel it
#
try:
status, output = traceCommand("xm suspend %s" % domName,
timeout=30)
except TimeoutError, e:
session.xenapi.VDI.destroy(vdi_ref)
FAIL("Failure from suspending VM: %s." % str(e))
# Try to relabel while VM is suspended -- this should work
rc = session.xenapi.VM.set_security_label(vm_uuid, vm_label_green,
vm_label_red)
if int(rc) != 0:
FAIL("VM security label could not be set to %s" % vm_label_green)
res = session.xenapi.VM.get_security_label(vm_uuid)
if res != vm_label_green:
session.xenapi.VDI.destroy(vdi_ref)
FAIL("VM (suspended) has label '%s', expected '%s'." %
(res, vm_label_green))
status, output = traceCommand("xm list")
#Try to resume now -- should fail due to denied access to block device
try:
status, output = traceCommand("xm resume %s" % domName,
timeout=30)
if status == 0:
session.xenapi.VDI.destroy(vdi_ref)
FAIL("Could resume re-labeled VM: %s" % output)
except Exception, e:
session.xenapi.VDI.destroy(vdi_ref)
FAIL("1. Error resuming the VM: %s." % str(e))
# Relabel VM so it would resume
res = session.xenapi.VM.set_security_label(vm_uuid, vm_label_red,
vm_label_green)
if int(res) != 0:
session.xenapi.VDI.destroy(vdi_ref)
FAIL("Could not relabel VM to have it resume.")
res = session.xenapi.VM.get_security_label(vm_uuid)
if res != vm_label_red:
session.xenapi.VDI.destroy(vdi_ref)
FAIL("VM (suspended) has label '%s', expected '%s'." %
(res, vm_label_red))
# Relabel the resource so VM should not resume
try:
session.xenapi.XSPolicy.set_resource_label(vdi_path,
vdi_label_green,
"")
except Exception, e:
session.xenapi.VDI.destroy(vdi_ref)
FAIL("Could not label the VDI to '%s': %x" %
(vdi_label_green, int(rc)))
#Try to resume now -- should fail due to denied access to block device
try:
status, output = traceCommand("xm resume %s" % domName,
timeout=30)
if status == 0:
session.xenapi.VDI.destroy(vdi_ref)
FAIL("Could resume re-labeled VM: %s" % output)
except Exception, e:
session.xenapi.VDI.destroy(vdi_ref)
FAIL("2. Error resuming the VM: %s." % str(e))
status, output = traceCommand("xm list")
# Relabel the resource so VM can resume
try:
session.xenapi.XSPolicy.set_resource_label(vdi_path,
vdi_label_red,
vdi_label_green)
except Exception, e:
session.xenapi.VDI.destroy(vdi_ref)
FAIL("Could not label the resource to '%s'" % vid_label_red)
res = session.xenapi.XSPolicy.get_resource_label(vdi_path)
if res != vdi_label_red:
session.xenapi.VDI.destroy(vdi_ref)
FAIL("'%s' has label '%s', expected '%s'." %
(vdi_path, res, vdi_label_red))
#Try to resume now -- should work
try:
status, output = traceCommand("xm resume %s" % domName,
timeout=30)
if status != 0:
session.xenapi.VDI.destroy(vdi_ref)
FAIL("Could not resume re-labeled VM: %s" % output)
except Exception, e:
session.xenapi.VDI.destroy(vdi_ref)
FAIL("3. Error resuming the VM: %s." % str(e))
status, output = traceCommand("xm list")
console = domain.getConsole()
try:
run = console.runCmd("cat /proc/interrupts")
except ConsoleError, e:
saveLog(console.getHistory())
session.xenapi.VDI.destroy(vdi_ref)
FAIL("Could not access proc-filesystem")
domain.stop()
domain.destroy()
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