Commit Graph

10 Commits

Author SHA1 Message Date
Rahul Frias
84a14f2561 Generate key set ID on initialization and interface clean up
This is a merge of squashed CLs.

* Cdm Session and Engine interface clean up

[ Merge of http://go/wvgerrit/16387 ]

Key Set Ids have been removed from the CdmSession interface
(GenerateKeyRequest, Addkey) as they can be queried by an accessor.

The CdmEngine interface now allows one to specify or retrieve a session ID,
since both were not being used in a single call. Key set IDs are no longer
returned though GenerateKeyRequest as they was not being used.

* Generate key set ID when session is initialized

[ Merge of http://go/wvgerrit/16370 ]

Key set IDs are currently generated at different times in the
CdmSession lifecycle. Android generates key set IDs when the license
is received, while the CE CDM generates (or overrides them)
when the session is constructed.

The key set IDs are now generated when the session is initialized.
Key set generation cannot occur earlier as it has a dependency on
security level and in turn on crypto session initialization which
occurs when the session is initialized.

Depenencies on Session ID has caused other activities, construction of
PolicyEngine, CdmLicense, setting property CDM client sets to be
deferred from CdmSession constructor to Init().

Android will still retrieve the key set IDs after the offline license is
processed. For streaming requests, the key set will be
unreserved and discarded when the session is terminated.

Change-Id: Ib802d1c043742d62efa9a2c901fcd113e836c33d
2016-01-15 17:09:09 -08:00
Rahul Frias
85da7bdb98 Refactoring to cache service certs and initialization data
* Extend CdmLicense's stored_init_data_

  [ Merge of http://go/wvgerrit/14661 ]

  CdmLicense will store init data when a server cert must be
  provisioned.  After provisioning, the original init data can be used
  to generate the originally-intended license request.

  To do this before, the caller had to call CdmSession's
  GenerateKeyRequest with an empty InitializationData object.  However,
  the init data's type still had to be set, as did the license type.

  This CL allows the caller to use a truly empty InitializationData
  without a type.  To permit this, CdmLicense now stores a full
  InitializationData object, rather than just a copy of it's data field.

  With this CL, the caller also avoid storing the original license type.
  To accomplish this, CdmSession uses the already-set is_offline_ and
  is_release_ flags from the original call to reconstruct the intended
  license type.  The caller uses the new type kLicenseTypeDeferred.

  To facilitate storing whole InitializationData objects, they are now
  copyable.

  This ultimately simplifies server cert code for the new CE CDM.

* Store service certs in Properties

  [ Merge of http://go/wvgerrit/14664 ]

  This allows CE devices to mimic the Chrome CDM's behavior of sharing
  server certs between sessions.

  This also affects Android behavior.  Previously, provisioned service
  certificates were per-session, while explicitly-set service certs
  were per-DRM-plugin.  Now, both are per-DRM-plugin.

  A DRM plugin is associated with a mediaDrm object. Content
  providers will still be able to retrieve and use different
  certificates. The change here requires an app, that wishes to use
  different provisioned service certificates will have to use
  multiple mediaDrm objects. This is an unlikely scenario.

Change-Id: If2586932784ed046ecab72b5720ff30547e84b97
2015-09-30 10:51:46 -07:00
Rahul Frias
395f68456b Prevent renewal license when can_renew is set to false
[ Merge of https://go/wvgerrit/15670 ]

b/18459002

Change-Id: Idad43a621750ff01aee61e8d972957f364a698cf
2015-09-16 15:30:38 -07:00
Rahul Frias
99a2346e3a Return more descriptive error codes on license generation failure
[ Merge from http://go/wvgerrit/14745 ]

License generation errors previously would result in code -2916 being returned
though the mediaDrm API. More descriptive error codes are now being returned
from -2850 to -2836

b/13976775

Change-Id: I613ad650ab0a072ce9d8029e2af52b72dc617236
2015-06-17 17:32:11 -07:00
Rahul Frias
b33298a742 Fix for concurrent provisioning attempts
[ Merge from http://go/wvgerrit/14670 ]

Concurrent provisioning attempts are declared successful if any one of them
succeeds. Earlier only the successful ones were declared as such.

b/21727698

Change-Id: I67dedca44790a4ae236e14f90a8fc91775273905
2015-06-12 14:37:41 -07:00
Edwin Wong
2eb013691c Add more CdmResponseType to help with debugging in the field.
The errors in the range ERROR_DRM_VENDOR_MIN to ERROR_DRM_VENDOR_MAX are
reflected in the message that is reported to the app, which is
MediaDrmStateException.getDiagnosticInfo().

Many errors map to kErrorCDMGeneric, especially KEY_ERROR is used as a
generic error in CDM. This fix defines more specific error codes in the
CDM for places where KEY_ERROR is returned.

Merge from http://go/wvgerrit/14071

bug: 19244061
Change-Id: I688bf32828f997000fea041dd29567dde18ac677
2015-04-15 11:44:06 -07:00
KongQun Yang
85e838b957 Replace generic OnEvent with actual event callbacks
Also pass session_id and event_listener to PolicyEngine to make it easier
to dispatch events from PolicyEngine.

Bug: 19771437

Merged from Widevine CDM repo:
https://widevine-internal-review.googlesource.com/#/c/13816/

Change-Id: I5723cb371cb3c43c945051af3402b09069ba5859
2015-03-27 21:42:20 +00:00
KongQun Yang
0a564039ca Cleanup namespace ending comment
(This is a merge of http://go/wvgerrit/13400 from the Widevine CDM
repository.)

Replace "};  // namespace" with "}  // namespace":
ag -l --ignore-dir third_party "};  //" | \
while read f; do sed -r -i 's/\};  \/\//}  \/\//' $f ; done

Replace "// unnamed namespace" with "// namespace":
ag -l --ignore-dir third_party "unnamed namespace" | \
while read f; do sed -r -i 's/unnamed namespace/namespace/' $f ; done

Change-Id: I50ece9a127ce669f15cd532dfae1dd741338a075
2015-03-09 13:05:25 -07:00
John "Juce" Bruce
a3b0d83d19 Run clang-format on Core
This copies over formatting changes from the Widevine CDM repository
that resulted from running clang-format with Google style on the
shared core/ directory. It also copies over some rewordings of log
messages that were made at the same time.

Aside from the changed log messages, this should not affect behavior
or functionality.

Change-Id: I69c57c188f7a79f30fa3517afeed17365929b6b6
2015-03-05 16:46:01 -08:00
Fred Gylys-Colwell
9ff5125867 Adjust CDM engine and request license unit tests
Merge of the widevine change:
https://widevine-internal-review.googlesource.com/#/c/11632

Several unit tests in cdm_engine_test.cpp and request_license_test.cpp
were failing regularly. These were caused by either:
1) The device was not provisioned.
  This has been fixed by adding a certificate provisioning step in the
  test setup for the cdm engine tests and changing the existing
  provision steop in the request license tests to provision for both
  security levels.
2) The device was hitting a flaky server.
  This has been fixed by switching from the GooglePlayServer to the
  Widevine server.
3) A null pointer introduced when testing secure stops with an app
  id.  This has been fixed by directly injecting the app id in the unit
  tests.
4) Flaky network connections.  The unit tests were requesting data
  from the server and were timing out after 3 seconds.  I changed that
  to 12 seconds.
5) The tests were searching for an end-of-line marker to find the GLS
  header in the license response message.  The end-of-line marker was
  present in a valid DRM message for almost 1% of the test cases.  This
  code  has been replaced by searching for the string "GLS/1" at the
  begining of the HTML body.

I also added test_printers.cpp that defines functions used by GTest to
print error codes by name instead of numeric value.

This CL changes unit tests only. It does not change any production
code.

bug: 18316036

Change-Id: I3398580059a03114e782ac7ac59e6b0944012df4
2014-11-12 13:57:03 -08:00