Messages from udp publisher can have invalid signature

[Ilya Tyaptin]

Messages from udp can have invalid message signature.

Log of message which send from udp publisher:
2014-03-26 12:55:28.110 15473 DEBUG ceilometer.publisher.udp [-] Publishing sample {'counter_name': u'instance:m1.medium', 'resource_id': u'b5dea434-e6d7-4126-9016-c5a1dde7e131', 'timestamp': '2014-03-26T08:55:28Z', 'counter_volume': 1, 'user_id': u'c052abd141ea4ea09be30d6953ee0272', 'message_signature': '1b05d28af0a7dbf54f6e4b0872d96a7b62b1884a95fb00ee102801b3bbfe2b5a', 'resource_metadata': {'ephemeral_gb': 0, 'display_name': u'ai', 'name': u'instance-00000016', 'disk_gb': 40, 'kernel_id': None, 'image': {u'id': u'c2cf308a-75d3-4a72-be4d-f20cc8c3194e', u'links': [{u'href': u'http://172.18.79.141:8774/ad2bb7e566be4ef196282ae5109f060e/images/c2cf308a-75d3-4a72-be4d-f20cc8c3194e', u'rel': u'bookmark'}], 'name': u'ubuntu-12.04'}, 'ramdisk_id': None, 'vcpus': 2, 'memory_mb': 4096, 'instance_type': u'3', 'host': u'300bb0f767dd72b17d0d33eccb2cba4a864dd2ab01d8fb89c2b8ce0e', 'root_gb': 40, 'image_ref': u'c2cf308a-75d3-4a72-be4d-f20cc8c3194e', 'flavor': {'name': u'm1.medium', u'links': [{u'href': u'http://172.18.79.141:8774/ad2bb7e566be4ef196282ae5109f060e/flavors/3', u'rel': u'bookmark'}], 'ram': 4096, 'ephemeral': 0, 'vcpus': 2, 'disk': 40, u'id': u'3'}, 'OS-EXT-AZ:availability_zone': u'nova', 'image_ref_url': u'http://172.18.79.141:8774/ad2bb7e566be4ef196282ae5109f060e/images/c2cf308a-75d3-4a72-be4d-f20cc8c3194e'}, 'source': 'openstack', 'counter_unit': 'instance', 'project_id': u'6e95f8ac361d43698b8afa78f576a10e', 'message_id': '60c04c02-b4c4-11e3-b2b2-0025906b9808', 'counter_type': 'gauge'} over UDP to localhost:4952 publish_samples /opt/stack/ceilometer/ceilometer/publisher/udp.py:62

Dispatcher's log of discarding received message
2014-03-26 12:55:28.666 14587 WARNING ceilometer.dispatcher.database [-] message signature invalid, discarding message: {'counter_name': 'instance:m1.medium', 'user_id': 'c052abd141ea4ea09be30d6953ee0272', 'message_signature': '1b05d28af0a7dbf54f6e4b0872d96a7b62b1884a95fb00ee102801b3bbfe2b5a', 'timestamp': '2014-03-26T08:55:28Z', 'resource_id': 'b5dea434-e6d7-4126-9016-c5a1dde7e131', 'message_id': '60c04c02-b4c4-11e3-b2b2-0025906b9808', 'source': 'openstack', 'counter_unit': 'instance', 'counter_volume': 1, 'project_id': '6e95f8ac361d43698b8afa78f576a10e', 'resource_metadata': {'ramdisk_id': None, 'display_name': 'ai', 'name': 'instance-00000016', 'disk_gb': 40, 'kernel_id': None, 'image': {'id': 'c2cf308a-75d3-4a72-be4d-f20cc8c3194e', 'links': ({'href': 'http://172.18.79.141:8774/ad2bb7e566be4ef196282ae5109f060e/images/c2cf308a-75d3-4a72-be4d-f20cc8c3194e', 'rel': 'bookmark'},), 'name': 'ubuntu-savanna-icehouse'}, 'ephemeral_gb': 0, 'host': '300bb0f767dd72b17d0d33eccb2cba4a864dd2ab01d8fb89c2b8ce0e', 'memory_mb': 4096, 'instance_type': '3', 'vcpus': 2, 'root_gb': 40, 'image_ref': 'c2cf308a-75d3-4a72-be4d-f20cc8c3194e', 'flavor': {'name': 'm1.medium', 'links': ({'href': 'http://172.18.79.141:8774/ad2bb7e566be4ef196282ae5109f060e/flavors/3', 'rel': 'bookmark'},), 'ram': 4096, 'ephemeral': 0, 'vcpus': 2, 'disk': 40, 'id': '3'}, 'OS-EXT-AZ:availability_zone': 'nova', 'image_ref_url': 'http://172.18.79.141:8774/ad2bb7e566be4ef196282ae5109f060e/images/c2cf308a-75d3-4a72-be4d-f20cc8c3194e'}, 'counter_type': 'gauge'}

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/83722

[Openstack Gerrit (openstack-gerrit)]

Reviewed: https://review.openstack.org/83722
Committed: https://git.openstack.org/cgit/openstack/ceilometer/commit/?id=031953992be18dbc52ee13fcd6633e6d197e6fda
Submitter: Jenkins
Branch: master

commit 031953992be18dbc52ee13fcd6633e6d197e6fda
Author: Ilya Tyaptin <email address hidden>
Date: Thu Mar 27 18:00:14 2014 +0400

    Add encoding argument to deserialising udp packets in collector

    Samples from udp publisher failed signature verifying when they
    contain utf8 strs. It happened because msgpack.loads
    unpacked data without utf8 by default and in compute signature
    this strs are processed as different.
    This is fixed by adding of encoding in unpacking packets from
    udp

    Fixes: bug #1297731

    Change-Id: I3a8072eb49a61364ff1a6bff1a14ad2c9925b88e