[ Merge of http://go/wvgerrit/64682 ]
Looks like we do not delete control_block_
Bug: 117126556
Test: WV unit/integration tests
Change-Id: If0b4db163276bbf016bb81ed7e8ef56fa66ea30e
(This is a merge of http://go/wvgerrit/62780)
The EME spec requires that it be possible to do the following flow:
1) Generate a release request for a persistent session.
2) Close the session.
3) Load the persistent session.
4) Update the session with the release response.
This flow is used by Netflix in their API as well. However, our code did
not support this flow, as it rejected attempts to reload
partially-released sessions.
This patch changes attempts to load sessions that have already had
release messages generated into release-retry reloads, allowing them to
be released.
Bug: 113167010
Test: CE CDM Unit Tests
Test: Android CDM Unit Tests
Change-Id: I75bb7c75911e0fad1584bd8dd27f83c17f73bf45
(This is a merge of http://go/wvgerrit/60620)
The license code handles keys larger than 16 bytes correctly, but it
does not properly reject keys smaller than 16 bytes.
This patch adds unit tests not only for the new error case but also
the existing success cases which were not previously being tested. As
part of this, license_unittest was changed to use a Test Peer instead
of making the test fixture a friend class.
Bug: 111069024
Test: CE CDM unit tests
Test: Android unit tests
Change-Id: Idb2deb6fbe0aeb19b530f9818bebff480541f5c8
[ Merge of http://go/wvgerrit/60240 ]
Since the method is not a general purpose check and only verifies that
the key can be used for a given security level the method
has been renamed PolicyEngine::CanUseKeyForSecurityLevel.
Bug: 115701771
Test: WV unit/integration tests
Change-Id: Icd6789538bb709d2a48c67bbd7bc810f4b000e14
Merge from Widevine repo of http://go/wvgerrit/55461
This CL allows provisioning 3.0 devices to install their OEM certs
from an initialization partition. This method is already used for
keyboxes on Android -- we are just adding the ability to use it for
OEM certs, also.
Also, for v15, we require OEMCrypto to report a valid certificate in
the unit tests.
bug: 111725154
test: unit tests
Change-Id: I142c84a1a67bdb4cee943cfd12a632421901eb24
Merge from Widevine repo of http://go/wvgerrit/56523
In OEMCrypto v14, SelectKey can also return KEY_NOT_LOADED if the key
id is not found. This was added to help with entitlement licenses.
However, SelectKey in crypto session converts this to an unknown
error.
In this CL we change that to a NO_CONTENT_KEY_3 error. This is
probably only important because the generic crypto tests expect
NO_CONTENT_KEY_3 when we try to use an undefined key.
Test: existing unit tests pass, and some future unit tests pass.
Bug: 72354901 Turn on generic crypto tests
Change-Id: I3c0b7e6306cafd3feabc8aac7e47983c89194a26
Merge from Widevine repo of http://go/wvgerrit/56520
This CL adds a test base that installs a test keybox and catches nonce
flood errors for all CDM tests.
In order to do this, a new class is added called a
CryptoSessionFactory. The default factory just creates a new
CryptoSession. All places in the code that create a new CryptoSession
now call the static method MakeCryptoSession, which uses the current
factory to create a CryptoSession. If MakeCryptoSession is called and
there is no current factory, a default factory is created.
The CryptoSession constructor is now private, so that we do not
accidentally try to create one without using the factory.
For the new test base, we first create a special test
CryptoSessionFactory that creates a TestCryptoSession. The test
factory catches the first call to MakeCryptoSession and injects an
installation of the test keybox after OEMCrypto_Initialize is called.
The TestCryptoSession injects a sleep statement and a retry whenever
it detects a nonce flood.
Test: current unit tests still pass.
bug: 72354901 Fix Generic Crypto tests.
bug: 111361440 Remove #ifdef from unit tests
Change-Id: I248e7f3c53721c04d2af412ef835e19bb4d15d9a
This CL cleans up some bad merges of client ID code, entitlement keys,
and concurrent session access. After this CL, core cdm code on
android should match that on widevine at the commit 2f916720 on branch
master.
CLs merged here are based on:
http://go/wvgerrit/50483 Protect sessions from concurrent access
http://go/wvgerrit/48860 Remove duplicate information from client identification
http://go/wvgerrit/49040 Revert revertion of Client ID Expansion
http://go/wvgerrit/46448 Test Entitlement Licenses
Test: tested as part of http://go/ag/4674759
Change-Id: I45854d6b034c247b16073a96d6ff3ea953ded3ae
Merge from Widevine repo of http://go/wvgerrit/43202
Sync the definition of WidevinePssh data with the latest in support of
entitlement keys.
bug: 73297961 Fix or remove sublicense support.
Test: tested as part of http://go/ag/4674759
Change-Id: Ia9faf82732854a705b4b14430169ce4c8ecbcfcd
Merge from Widevine repo of http://go/wvgerrit/53883
Note: this CL does not modify license_key_status.cpp because the
previous CL already included those changes.
OEMCrypto v14 only supports one entitled key per entitlement key at a
time. Unfortunately, some partners have use cases that require using
old entitlement keys after the new keys have been loaded. Most
notably, when a key rotation occurs, the new PSSH will often be loaded
before the playback position catches up to the PSSH in the stream,
meaning that decryption will need to continue using the old keys for a
bit.
To fix this, EntitlementKeySession now caches the entitled keys when
they are loaded and only loads them under their matching entitlement
key when SelectKey() is called. This ensures that the right entitled
key is loaded for a given entitlement key before decryption.
The entitlement key integration tests have been updated to verify that
the old entitled keys still work even after loading new entitled keys.
Also, several places in the code that assumed loading new entitled
keys would wipe out the old keys have had to be modified.
Bug: 78652567
Test: CE CDM Unit Tests
Test: tested as part of http://go/ag/4674759
Change-Id: I6fac9dfe2b170ad68fb7cdb5bc8d6a2f35a20c2c
Merge from Widevine repo of http://go/wvgerrit/53465
It may not be clear that Properties::Init is called multiple
times. This CL adds an explanation in the header file. The function
itself is platform specific.
Test: tested as part of http://go/ag/4674759
Change-Id: I68010c594ec146e36161ae0f4f44d53caefa1896
Merge from Widevine repo of http://go/wvgerrit/50481
Original CL http://go/wvgerrit/47520
The original CL was not completely merged to master on Android, so
this CL only reverts the left-over bits.
The original fix was not sufficient to address all race conditions. A
subsequent CL will address them.
Bug: 73781703
Bug: 79158083
Bug: 79262108
Test: tested as part of http://go/ag/4674759
Change-Id: Ib6c55ab5434e08fe61e0f65623ac8c7b2dc5aaa1
Merge from Widevine repo of http://go/wvgerrit/53202
and
Merge from Widevine repo of http://go/wvgerrit/53624
This change contains a variety of small tweaks to the
ContentKeySession and EntitlementKeySession classes that were
discovered while fixing b/78652567. There should be no change in
behavior from this patch. The fixes are:
1) Added missing headers and removed unnecessary headers.
2) Removed the unused keys_ member from EntitlementKeySession.
3) Renamed ContentKeySession's protected member function so that it is
not an overload of the public LoadKeys() function. This makes it
clearer what EntitlementKeySession::LoadKeys() is doing.
4) Added missing "virtual" and "OVERRIDE" keywords.
5) Added missing copyright headers.
6) Ran clang-format with Google style.
7) Correct missing OVERRIDE keywords.
Test: tested as part of http://go/ag/4674759
Change-Id: Icb0af886d7d3eb097b5dffbb716be6ac28f0916d
Merge from Widevine repo of http://go/wvgerrit/48842
In order to work around a limitation of some versions of OEMCrypto,
the packager is going to start generating files with multiple Widevine
PSSH boxes. For backwards-compatibility, the first PSSH will be a
SINGLE-type PSSH while the ENTITLED_KEYS-type PSSH (if any) will come
later. In order to use entitlement licenses, then, the CDM needs to
change how it selects PSSHs from the init data blob.
Previously, the CDM always took the first Widevine PSSH it found. Now,
it must find all the Widevine PSSHs and select the appropriate PSSH
for the OEMCrypto implementation. ENTITLTED_KEYS will be used on OEC
v14 and later, if available, while SINGLE will be preferred on earlier
OEMCrypto versions.
As a side-effect of this, the CDM is now stricter about what PSSH
payloads it will accept. Previously, it would blindly accept the
payload of any PSSH where the wrapper was not malformed. Now, it
sometimes has to actually parse the payload, and therefore PSSHs that
have corrupted payloads will be rejected. This affected a few unit
tests which used PSSHs that were malformed. These tests have been
updated to use PSSHs that do not fail to parse.
Bug: 78142219
Test: CE CDM Unit Tests
Test: Android Unit Tests
Test: Android Google Play & Netflix
Test: tested as part of http://go/ag/4674759
Change-Id: Ia70d627a914299bfbae84b4cb46f100dc5c7a501
Merge from Widevine repo of http://go/wvgerrit/52480
Partners have asked for a way to release offline licenses without
using a release message. This is typically used by cable partners who
are caching licenses ahead of time and do not care about usage
statistics.
As part of implementing this request, CdmSession::DeleteLicense() was
renamed to reflect that it only deletes the *files* associated with a
license, and a new CdmSession::DeleteLicense() has been written that
also cleans up other related data.
Bug: 77955334
Test: CE CDM Unit Tests
Test: tested as part of http://go/ag/4674759
Change-Id: I00d6e20935c5fecb3ac9be6757c0f191d85c6bd6
Merge from Widevine repo of http://go/wvgerrit/49820
Devices with baked-in DRM certs cannot be reprovisioned. As such, we
must protect them against being unprovisioned. Currently, our unit
tests break such devices by attempting to unprovision them. This patch
adds code to block the Unprovision() call on these devices.
Bug: 69264798
Test: CE CDM Unit Tests
Test: tested as part of http://go/ag/4674759
Change-Id: I49322dcb2d3d5c7953e870eb91a9e0b978d4dabe
Merge from Widevine repo of http://go/wvgerrit/46204
Refactor utility code - split the mock, step 1
Merge from Widevine repo of http://go/wvgerrit/46205
Move some OEMCrypto types to common header - split the mock, step 2
Merge from Widevine repo of http://go/wvgerrit/46206
Split mock into two -- step 3
Merge from Widevine repo of http://go/wvgerrit/47460
Split the mock into two -- step 3.5
The CL moves several files used by oemcrypto and cdm into a common
subdirectory, so that it may more easily be shared with partners.
The CORE_DISALLOW_COPY_AND_ASSIGN macro was moved to its own header in
the util/include directory.
This CL removes some references to the mock from other code, and puts
some constants and types, such as the definition of the keybox, into a
header in oemcrypto.
Test: tested as part of http://go/ag/4674759
bug: 76393338
Change-Id: I75b4bde7062ed8ee572c97ebc2f4da018f4be0c9
[ Merge of http://go/wvgerrit/58460 ]
If OEMCrypto runs out of space in the usage table header+entries adding
a new license or loading/using an existing one might fail. This CL makes
two modifications to handle this scenario.
* OEMCrypto_ERROR_INSUFFICIENT_RESOURCES will be returned from
OEMCrypto_CreateNewUsageEntry or OEMCrypto_LoadUsageEntry. An attempt
will be made to release a LRU entry from the usage table and retry
the operation. This may be retried 3 times unless success
occurs earlier.
* On initialization, the usage table header is loaded. If there are more than
the minimum number of usage entries (200), an attempt is made to
add a usage entry. If this fails, we are likely in an unrecoverable
state. We then delete all offline licenses, usage information and
recreate the usage table header. This will allow future playback
attempts to succeed and offline licenses to be able to be downloaded
but will lose all current offline licenses and secure stops.
Bug: 112486006
Test: WV unit/integration tests, GtsMediaDrmTest
Playback tests using Netflix and Play movies.
Change-Id: I41a18d69a329f8a96c7b607d299ce73af3d56177
Locks in earlier releases controlled access to sessions and the list
of sessions for each CdmEngine instance. This guarded against
concurrent access between session management (OpenSession,
CloseSession, etc), periodic timer calls and calls to Decrypt.
The list of sessions and locking was moved to a separate class
CdmSessionMap. This left open the possibility that a session
might be destructed, while being called to decrypt or invoked through the
timer. An attempt was made to add per-session locks in b/73781703
but this was found insufficient.
Per-session locks will be introduced in a future changelist, but for
now the coarser locks will be reintroduced.
Bug: 73781703
Bug: 79158083
Bug: 79262108
Bug: 79436509
Test: WV unit/integration tests, GTS GtsMediaTestCases tests and
24 hours of continuous Netflix playback.
Change-Id: I30a3ede340192370dfe5c92c01b1c76df16b7123
[ http://go/wvgerrit/50341 ]
The shared_ptr implementation was taken from a google3 implementation.
Updates to the reference counter needed to be atomic and were
platform dependent in the original code. These were not carried
over to this codebase. Race conditions between calls to decrypt and
the periodic timer, led to incorrect reference count values.
CdmSession objects were then destructed while references to
them still existed. Segfaults occurred when they were referenced.
Bug: 79431096
Test: WV unit/integration tests, GTS GtsMediaTestCases tests and
24 hours of continuous Netflix playback.
Change-Id: I6008ddba869efcc58972e5ea8644a204f91410ab
[ Original CL http://ag/3890635,
Merge of http://go/wvgerrit/50340 ]
The original fix was not sufficient to address all race conditions.
A subsequent CL will address them.
Bug: 73781703
Bug: 79158083
Bug: 79262108
Test: WV unit/integration tests, GTS GtsMediaTestCases tests and
24 hours of continuous Netflix playback.
Change-Id: I869c22a250e2467b3d49935815e4157dc012fff5
[ Merge of http://go/wvgerrit/48400 ]
Client identification information has recently been enabled in
provisioning messages. For privacy concerns this information
is being encrypted with a default service certificate.
Apps need to be able to override the default one to allow
for provisioning with third party provisioning services.
Bug: 78420508
Test: WV unit, integration tests
New WvCdmRequestLicenseTest.ProvisioningTestWithServiceCertificate test
GTS MediaDrmTestCases
Change-Id: Iee61ad47d33ce011efbea4eb90f7e4b1f032d15f
[ Merge of http://go/wvgerrit/46760 ]
This enables encryption of client ID for provisioning requests for
devices with keyboxes as root of trust. Client ID will not be
provided for those devices with OEM device certificates as root of
trust. That will be addressed in b/78303730.
Bug: 77607585
Test: WV unit/integration tests. Tests with L3 using OEM certs
Change-Id: Id9bd697aa049bd5659ab80714e141dbc50408f6a
Merge from Widevine repo of http://go/wvgerrit/47860
This CL updates the copyright notice to indicate that files
shared with partners are shared under the Widevine Master
License Agreement.
bug: 77926774
test: comment change only
Change-Id: I0423668111578b80fb39a932d763df2827e2dfc3
[ Merge of http://go/wvgerrit/47065 ]
RemoveKeys now resets associated crypto and policy resources,
rather than just closing the crypto session. This results in a
MediaCodec.CryptoException with error code ERROR_NO_KEY
rather than ERROR_SESSION_NOT_OPENED, if decrypt is called
afterwards.
Error SESSION_NOT_FOUND_FOR_DECRYPT is made unique. Error codes
were also synchonized between various branches in the widevine repo.
Bug: 77304819
Test: WV unit/integration tests, VtsHalDrmV1_0Target tests
Change-Id: I6cba2a3e1ce466d58c7727cde2d8f81d9503d655
[ Merge of http://go/wvgerrit/46907 ]
The WV client supports root of trusts as keyboxes or OEM certificates.
Devices with keyboxes use provisioning 2.0 protocol to provision
while those with OEM certificates use 3.0. L3 provisioning failures
occur if the L1 and L3 root of trusts differ.
The provisioning method is now retrieved and cached when the
security level is known, when the session is opened.
Earlier it was retrieved and cached at initialization time and
always set to the value of L1 OEMCrypto (if present). This led
to provisioning failures.
A case of acquiring a lock while one was held in GetProvisioningId()
has also fixed.
Bug: 77606913
Test: WV unit/integration tests
Change-Id: I2d66ee2cf64f846cec4a37fbccb554447c8a0e1d
[ Merge of http://go/wvgerrit/46623 ]
If corruption of the usage information file is detected while saving a
streaming license with a PST, usage information file is deleted, so that
a subsequent load keys may succeed.
Also when calling the MediaDrm API releaseAllSecureStops(), an error would
be returned if usage info file was corrupted. Since this file is
deleted successfully, errors have been replaced with warnings.
Bug: 73447733
Test: wv unit/integration tests
Change-Id: Ie4a63ac202fd6009609105f38ffa8a3b23ed334e
Previously, we did not have a license request latency metric. This is a
notable limitation in our metrics. This adds a metric that captures the
timing between a GenerateKeyRequest and an AddKey operation.
Bug: 72994956
Test: New unit tests. Google Play
Change-Id: If99c187399c02f9b5d4c355732af7588bbbefb11
A few metrics were missing or not properly collected in the CDM metrics.
This CL addresses them.
Bug: 64570194
Bug: 72866232
Test: Unit tests and Google Play manual test.
Change-Id: I3a3aa4fb3eb8422c9c8c398016f02409307beb33
[ Merge of http://go/wvgerrit/44921 ]
* Added the ability to remove a single usage information record.
* Added a method to retrieve all secure stop Ids.
Bug: 69674645
Test: WV unit, integration tests
Change-Id: I04ac8224b4bdda69541e61ff1103af3836138228
CdmEngine::QueryStatus was mapping all error codes
returned from crypto_session.Open to INVALID_QUERY_STATUS
which caused important failure information to be lost.
The GTS DrmSessionManagerTest test was failing as a
result, because session reclaiming no longer worked.
merge of http://go/wvgerrit/44800
bug:72705384
test:gts DrmSessionManagerTest
Change-Id: Id404a18b8f66cf6137b69f6b4e1bdd7004706a0c
(cherry picked from commit 6aad0f77cb)
Merge from Widevine repo of http://go/wvgerrit/43420
Remove or mark unused variables. Fix unsigned/signed comparisons.
bug: 73390805
test: unit tests
Change-Id: Ic523400a5decf82fae733042b260e0c39a087cd3
[ Merge of http://go/wvgerrit/43281 ]
Bug: 73164325
Test: WV unit/integration test, playback tests using Netflix and
Play Movies.
Change-Id: Ifc3dd8863da1616eb4a7df35ad010f53b6d5e3d2
[ Merge of http://go/wvgerrit/43240 ]
HDCP related changes were made in http://go/wvgerrit/42602. This
also changed the string values returned in the HDCP query command.
This CL reverts changes to the string values as were specified in
the Widevine Modular DRM Plugin vendor extensions document. Changing
them at this point will impact applications.
Bug: 70278160
Test: WV unit/integration tests, GtsMediaTestCases, playback using
Play Movies and Netflix.
Change-Id: I20171a8272aeeff5007cf90c9939b2ce1ce0fb13
[ Merged of http://go/wvgerrit/39766 ]
The security level (software/hardware, decryption/decode)
in the policy that specified how the key was to be used was
not being respected for L3. Playback would either continue or
a vendor specific error would be thrown.
If the device cannot use the key as permitted by the policy
CryptoException#ERROR_INSUFFICIENT_OUTPUT_PROTECTION will be thrown.
Bug: 31913737
Bug: 31913439
Test: WV unit/integration tests
Test: Playback using playmovies and netflix. Cast playback using
playmovies.
Change-Id: If25735ab0f789108431115623cb236687c5ef818
[ Merge of http://go/wvgerrit/42103 ]
* While deprecating keyboxes as identification, some code to
restore a license was mistakenly removed in http:://go/wvgerrit/36740,
http://ag/3442777
* Corrections to keep track of cipher mode, call SelectKeys when cipher
mode changes and to use the backward compatible LoadKeys call in case
OEMCrypto is v13.
Bug: 70160032
Test: Ran WV unit/integration tests. Request license test failures
have been addressed.
Change-Id: Id03c50874085af6d9985d10c19a74a02efb7a1f5
* changes:
Fix some unit tests
Add basic handling for entitlement keys in a license.
Refactor key sessions to move them out of crypto session.
Fix entitlement keys encryption and content key loading.
Merge from Widevine repo of http://go/wvgerrit/41834
Key rotation is not yet supported.
The key statuses are updated from a license. The
mechanism expects content keys tro come in a license.
For entitlement licenses, the content keys come in the
init_data.
This code does not yet support the key rotation event.
(A new pssh with wrapped keys is a passed to the cdm)
The policy engine/key status mechanism needs to be
updated to handle updated from the init_data.
For now, the cdm builds a license with a key container
with the content keys and used that to call
PolicyEngine::SetLicense to setup the policy engine
and key statuses.
Bug: 64003606
Bug: 70334840
Test: In child CL
Change-Id: Ibf46a18f5321cab4ff6f1778ba30527942c8021f
[ Merge of http://go/wvgerrit/41840 ]
Bug: 69867619
Test: WV unit/integration tests
Playback using netflix and play movies on Taimen
Change-Id: I49d0dd9ae12322eecc80efb8cb744419c85e8ae5
This is a merge of Widevine cl 39040.
A few of the metrics were not implemented, or implemented incorrectly in
O MR1. This cleans them up
Bug: 64001676
Test: Re-ran unit tests and added some additional tests. GPlay Movies check.
Change-Id: I1e8bcc36fecd76e72d853306075bc46d82f45161
