Don't create volumes if an incorrect size was given

backported from cinder

bug 1006875

Change-Id: I5f327dc0278413575e8c686b2db3b6000f19c4c7

2 files changed, 16 insertions, 0 deletions

diff --git a/nova/tests/api/openstack/volume/test_volumes.py b/nova/tests/api/openstack/volume/test_volumes.py
index 0d671dfde..199e1fa95 100644
--- a/nova/tests/api/openstack/volume/test_volumes.py
+++ b/nova/tests/api/openstack/volume/test_volumes.py
@@ -19,6 +19,7 @@ from lxml import etree
 import webob
 
 from nova.api.openstack.volume import volumes
+from nova import exception
 from nova import flags
 from nova.openstack.common import timeutils
 from nova import test
@@ -65,6 +66,18 @@ class VolumeApiTest(test.TestCase):
                                'size': 100}}
         self.assertEqual(res_dict, expected)
 
+    def test_volume_creation_fails_with_bad_size(self):
+        vol = {"size": '',
+               "display_name": "Volume Test Name",
+               "display_description": "Volume Test Desc",
+               "availability_zone": "zone1:host1"}
+        body = {"volume": vol}
+        req = fakes.HTTPRequest.blank('/v1/volumes')
+        self.assertRaises(exception.InvalidInput,
+                          self.controller.create,
+                          req,
+                          body)
+
     def test_volume_create_no_body(self):
         body = {}
         req = fakes.HTTPRequest.blank('/v1/volumes')
diff --git a/nova/volume/api.py b/nova/volume/api.py
index ee079021a..90eef1e9c 100644
--- a/nova/volume/api.py
+++ b/nova/volume/api.py
@@ -80,6 +80,9 @@ class API(base.Base):
         else:
             snapshot_id = None
 
+        if not isinstance(size, int) or size <= 0:
+            msg = _('Volume size must be an integer and greater than 0')
+            raise exception.InvalidInput(reason=msg)
         try:
             reservations = QUOTAS.reserve(context, volumes=1, gigabytes=size)
         except exception.OverQuota as e: