(This is a merge of wvgerrit/25582)
Provisioning 3.0 devices that do not use SPOIDs have been returning
their full OEM Public Certificate as their device ID. While this is not
a security concern, (it is a PUBLIC cert) the cert is many times larger
than applications are likely expecting. (several kilobytes vs. just a
few bytes) This patch hashes the OEM Public Certificate to produce a
smaller value, but only when it is being provided out of the CDM to a
caller.
Bug: 34716264
Test: run_all_unit_tests.sh
Change-Id: Ib82cf7a174a8bf02ff606edd0394ada13842224c
[ Merge of http://go/wvgerrit/23820 ]
The UsageTableHeader class is a singleton that CDM sessions will share.
A separate object will be created for each security level. The class
synchronizes access to usage table header and associated data-structures
and controls when they are read in or written out to non-secure persistent
storage. Upgrades from a fixed size usage table (supported by previous
versions of the OEMCrypto API v9-12) are handled by this class.
b/34327459
Test: Verified by unit/integration tests on angler
Change-Id: Ifc5996985e76bc260c01e55bc12aab1248389a80
(This is a merge of go/wvgerrit/23154)
This patch updates the ClientCapabilities protobuf to match the latest
on the server side and adds plumbing to the provisioning request
process so that devices can report whether they like big certs.
Their capacity to lie remains untested.
Bug: 34076937
Test: license_unittest
Change-Id: I3bcc9f1741146953d8bc0ff3d7d2305e7ac2c118
[ Merge of http://go/wvgerrit/22980 ]
System Renewability Messages (SRM) contains a list of Key Selection
Vectors, which are HDCP Identifiers that have been revoked.
During HDCP negotiations a transmitter may authenticate a receiver
and verify that its unique identier is not present in the SRM.
This CL enables reporting of the current SRM version and whether SRM
updates are supported. It also loads SRM updates in the license
and specifies SRM version requirements when keys are loaded.
Test: All unittests other than some oemcrypto, request_license_test
passed. Those tests failed with or without this CL.
b/28955520
Change-Id: Id840078ea2deb01d9619c1cd8d367b50452f76cc
[ Merge of http://go/wvgerrit/22900 ]
Add GetClientToken(), GetProvisioningToken(), GetPreProvisionTokenType()
to CryptoSession. They return the correct token bytes and token type
for preparing the ClientIdentification message for provisioning and
license server transactions.
Also refactor service certificate handling.
OEM certs are introduced in Provisioning 3.0
b/30811184
* Address build breaks
[ Merge of http://go/wvgerrit/23162 ]
This addresses issues introduced by http://go/wvgerrit/22900
b/30811184
* When http://go/wvgerrit/18012 was merged (ag/1446934) some changes
were not merged for mapErrors-inl.h. These changes are included in this CL.
* When ag/1678104 was reverse merged to http//go/wvgerrit/21981/ a variable
was renamed and some comments were added to add clarity in cdm_engine.cpp.
These changes are included in this CL.
Test: All unittests other than some oemcrypto, request_license_test
passed. Those tests failed with or without this CL.
Change-Id: Ie0215509f2f985f2a610f5a4c865db47edec8662
[ Merge of http://go/wvgerrit/22565 ]
When using the grace period, the CDM will need to override the values
given to use by the TEE (through OEMCrypto). Normally the first (and
last) decrypt times are stored securely by the TEE. To avoid extra
complexity in OEMCrypto, we will simply ignore the values given to us
by the TEE when using this feature.
However, the TEE will still enforce the (hard) license duration. So
only the rental/playback durations will be affected by malicious
editing of files.
b/34211676
Test: Reran unittests including newly added tests. All tests other than
some oemcrypto, request_license_test passed. Those tests failed with
or without this CL.
Change-Id: I6d7b5bfb669fd8603b474b68c2f7175b0c30901d
* CDM license protocol updates
[ Merge of http://go/wvgerrit/22789 ]
No functional changes (yet) - all tests in widevine_ce_cdm_unittest
run successfully.
* Address android test build failures
[ Merge of http://go/wvgerrit/22983 ]
Updates to the license_protocol.proto in go/wvgerrit/22789
did not include the integration tests for android.
b/34202048
Test: Reran unittests. All tests other than some oemcrypto,
request_license_test passed. Those tests failed with or without this CL.
Change-Id: Ib9041d397187859b8fcbc1b1f7d275f8c4ef6aba
[ Merge of http://go/wvgerrit/19960 ]
Protections schemes are specified using a 4CC code {"cbc1", "cbcs",
"cenc", "cens"}. A host to network conversion was performed when the
PSSH was created and inserted into the license request. A reverse
conversion was performed when the code was extracted from the
license response.
These conversions are problematic if the PSSH is created externally and
passed into mediaDrm. To address this, the conversions have been removed
and allow protobuf to handle byte ordering. For backward compatibility
we allow codes in either ordering.
b/30713238
Change-Id: I25f01ecc621549fd3c13b443e4c8b89168463249
[ Merge of http://go/wvgerrit/17959 ]
This will allow the license server to base licensing decisions on the
devices security module revision.
b/28882058
Change-Id: I574e7686bb305397946d2bfaff504cfae242e628
[ merge of http://go/wvgerrit/17454 ]
When processing a license or renewal, calls to Set/UpdateLicense
update the policy information. A side effect was introduced whereby
updating the policy may cause (expiration, session key state)
notifications to be sent to the listener. Due to the ordering,
the notifications would be sent before the keys were loaded/refreshed,
which caused issues when the notifications were immediately acted upon.
This has now been corrected.
b/27842970
Change-Id: Id81a71ff48edfa9ca0baafc43267995d5a3e80a6
[ Merge of https://go/wvgerrit/17055 ]
There are a few bugs that need to be addressed to get HLS to work.
* Content ID in json init data is base64 encoded and needs to be decoded
before being added to the WidevineCencHeader proto.
* Protection scheme was not set in the WidevineCencHeader proto.
* HLS initialization data should be sent as a CENC content identification
in a license request.
b/20630275
Change-Id: Ie0ac33ac061931df6f26c0afbf3e62e5d01e5041
[ Merge of http://go/wvgerrit/16769 ]
Protos have been updated to match the google3 copy. This introduces
protection scheme to support HLS and MetricData to assist
in reporting. Changes have been made to set or consume data
from appropriate fields.
b/27146600
Change-Id: Ic928a406efb8fbb959b95a77dda6848e839b1948
[ Merge of http://go/wvgerrit/16364 ]
http://go/wvgerrit/16249 changed the name of the encryption pattern
structure from OEMCrypto_PatternDesc to OEMCrypto_CENCEncryptPatternDesc
to remove ambiguity. These are matching changes to CDM core.
[ Merge of http://go/wvgerrit/16340 ]
This CL passes the cipher mode in the license to OEMCrypto when
keys are loaded and specifies the pattern encryption scheme to
OEMCrypto_DecryptCENC.
b/20630275
Change-Id: I86b82bbdc891fd0100beb9fad385ca2082176271
* Update unit test make files to use BoringSSL
[ Merge of http://go/wvgerrit/14173 ]
This CL updates the android makefiles to use the libcrypto_static.
* Do Not Run Provisioning Tests On Devices Without Keyboxes
[ Merge of http://go/wvgerrit/15633 ]
The provisioning tests outside OEMCrypto were failing on devices that
use baked-in certificates because only OEMCrypto knows that the cert
is baked in and the device cannot be reprovisioned. This change
skips those two tests if the device says it does not implement
rewrapping the cert. (i.e. it does not implement provisioning)
Bug: 23554998
* Add new third-party libs (protobuf & gyp)
[ Merge of http://go/wvgerrit/14717 ]
The CE CDM used to expect these to be installed system-wide, which
creates challenges for integrators who must cross-compile the CDM.
These are now used in source form from third_party.
Change-Id: I29cca2f9415fe2fafdf948273e5a0f5d7de50285
* 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
* Add CE test for incomplete remove()
[ Merge of http://go/wvgerrit/14658 ]
This depends on I064c053dd986a432865163aed5c9c3493f14340b to get
PolicyEngine to implement the EME semantics expressed in this test.
This also excludes another error code from causing an error log in
CdmEngine::AddKey, because this is actually an expected, handled
error in the CE CDM and it causes some confusing noise during testing
and development.
* Drop CdmEngine test main
[ Merge of http://go/wvgerrit/14693 ]
The command-line arguments are no longer in use anywhere, and
dropping the CdmEngine test's main allows me to add those tests to
the CE test suite.
* Add PolicyEngine::SetLicenseForRelease()
[ Merge of http://go/wvgerrit/14651 ]
In order to implement the EME-specified behaviors for load() &
remove(), some small changes are required in PolicyEngine.
According to EME, you should be able to remove() an active session.
This means that releasing a persistent session is not a separate load
operation. EME also states that the keys should be expired when this
is done.
Remove() is implemented using GenerateKeyRequest(type=release). This
leads to CdmLicense::RestoreLicenseForRelease, which in turn calls
PolicyEngine::SetLicense. When removing an active session, the policy
engine will have keys already loaded. The old behavior would cause
these keys to be reloaded. We need them to be expired, instead.
Once a remove() has been started, the keys should never be loadable
again. If a release confirmation is not received by the CDM, the
session should still be loadable. EME states that once a session has
had remove() called, then is loaded again later, there should be no
keys. Not that they should be expired, but not present. The old
behavior would cause these keys to be reloaded as usable.
This new method allows EME remove() and load() behaviors to be
faithfully implemented in the CE CDM. When removing an active
session, the old keys become expired. When removing a partially-
removed, newly-loaded session, no keys will be loaded at all.
This change does not affect any existing tests in core/.
New tests have been added in PolicyEngineTest to cover the behavior
of the new method.
Change-Id: Idd61487c277c9eadb4a044cb2a563e151442a548
[ Merge of http://go/wvgerrit/14920 ]
The renew_with_client_id field was not being correctly set when licenses
were being restored for usage reporting.
b/22047007
Change-Id: Ib769431b1e49bb498f53d8153a970b6c0a2776d2
[ 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
(This is a merge of http://go/wvgerrit/14630)
To create a better flow when an application sets a service certificate
manually, we will now validate the certificate when it is given to us,
and if it is invalid, we will not allow the property to be set.
Bug: 21307186
Change-Id: If980ad075604223fc962a859fae93e98d86a7f4f
[ Merge of http://go/wvgerrit/14410 ]
When specifying a service certificate though mediaDrm, the CDM earlier expected
serialized service certificates rather than signed ones.
b/21334970
Change-Id: I39af2aa25e8dc2a651cbdce84eb32f266b5b3382
[ Merge of go/wvgerrit/14240 ]
Client information is reported in release and renewal messages based on
flag in the license. License proto has been updated to match server updates.
There are two caveats
* Client IDs will be reported unencrypted when usage reports are requested.
* Release requests that enable privacy mode (encrypted client IDs) but do not
specify a service certificate are not supported.
b/19247020
Change-Id: I95e709922122370f310936fbad3d312262128e49
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
(This is a merge of http://go/wvgerrit/13813)
Removes the OS Version property which was only ever implemented on
Android to appease Netflix and never actually used by them. Adds,
instead, a Widevine library version property. Also adds
implementations of this function for both Android and CE Devices.
For Android, the version number is starting at 3.0.0-android, to
reflect that this is the third major revision of the Widevine CDM in
Android.
For CE Devices, the version number is not changing from its current
value (2.2.0) but is gaining a "-ce" on the end in order to
differentiate it from the Android version number.
Bug: 18376638
Change-Id: Ifb3fa0d62631b45d9e91a6a53bcab3be38763d3a
This is a merge of http://go/wvgerrit/13751 from the widevine
repository.
The CryptoSession had an enumeration for HDCP levels that was copied
from OEMCryptoCENC.h by hand. Since that header is included, there is
no need to have two enumerations.
b/16303994
Change-Id: Ief16ba62163776f9ca80375f3638ef4c7770e742
(This is a merge of http://go/wvgerrit/13761 from the Widevine
repository.)
This cleans up our includes to be in Google Style Guide order and in
alphabetic order, for the parts of the code that are expected to
follow Google Style.
This also converts places in our code that were including C headers
in the C++ style (i.e. <cstring> instead of <string.h>) to use C style
instead. This is because, although it was not causing problems for us
yet, on Android these actually include different headers. (<cstring>
is provided by libcxx, while <string.h> is provided by Bionic)
Lastly, this change puts all headers that do not come from within our
project in <brackets> instead of "quotes," which was not being done
consistently.
This change is explicitly NOT trying to standardize the spacing of our
header includes. I have tried to respect, in each file, the spacing
style already present.
Change-Id: If3dc06532ab9b68010285d64518ef21dce3d6354
Change anti_rollback_hardware_present field name in ClientCapabilities
message to indicate the field is for usage table rollback prevention.
Merge from go/wvgerrit/13817.
bug: 19869828
Change-Id: I982bfe484aa39a54d0c3a9ae60dd9e46351385d9
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
OEMCrypto may report an HDCP status of "No HDCP device attached/using
local display with secure path". This is not propagated upto
the server as an appropriate HDCP value did not exist in the
license protocol. This has now been added. Netflix has requested that
this be reported.
[ Merge of https://widevine-internal-review.googlesource.com/#/c/11806/
from Widevine cdm repo ]
b/18377309
Change-Id: I3db88c7ab5e79a3c12dbc8a398c4770e14e5ee5c
Our recommendation to OEMs is that they support a table of at least 50
usage entries in OEMCrypto. If more usage entries are stored, the PSTs get
added to the CDM but are LRU'ed out of the OEMCrypto usage table. When the
CDM queries those usage entries, OEMCrypto will return a
OEMCrypto_ERROR_INVALID_CONTEXT. Rather than return an error and have
MediaDrm throw an exception, CDM should delete this PST and return the
next usage entry, when queried.
[ Merge of https://widevine-internal-review.googlesource.com/#/c/11457/
from Widevine cdm repo ]
b/17994711
Change-Id: I00e3f93000096fb434d94333e22958de795a4bb5
(This is a merge of http://go/wvgerrit/11613 from the Widevine CDM
repo.)
Adds a property for the OS version, implements it on Android, and
adds it to the license request property bag so that Netflix may
use it to discern the supported capabilities of the CDM.
Bug: 18230738
Change-Id: If5174a108093855314f3e0102b83691e20bb247b
When falling back to L3, release requests were failing. Information
requesting falling back to L3 is passed along when the session is opened.
Licenses however are released using the key set ID and information
requesting fallback to L3(CdmClientPropertySet) at that point is
unavailable. The release was actually attempting to release a license
at the default security level which is incorrect.
In addition, the mac keys were not being setup correctly and the release
message was signed with keys derived from the license request and not the
response. Both these issues have been addressed and unit tests added
to track release of offline licenses and usage reporting scenarios.
[ Merge of https://widevine-internal-review.googlesource.com/#/c/11062
from wv cdm repo ]
b/17073910
Change-Id: I5cd95a7dfe58ebae7ae27ece6c92e67755c1d665
* The Usage APIs return usage reports from either L1 or L3 (if available).
* Correction to when usage reports are saved. In addition to other events
they are now saved when keys are loaded, usage reports are released and soon
after first decryption and periodically (60 seconds) after that,
if decryption takes place.
* Usage reports now get deleted on an unprovision request.
* Policy timer is now started when offline licenses are restored.
* Usage session is now released, when a usage response is received.
* Usage tests ahev been enabled.
* Added CDM extended duration (integration) tests to test usage reporting
and querying. These need to be run manually as they take a while (currently
half an hour).
b/15592374
[ Merge of https://widevine-internal-review.googlesource.com/#/c/10800
from the Widevine CDM repo ]
Change-Id: Ia817e03ebbe880e08ba7b4a235ecb82b3ff35fbf
[ Merge from Widevine CDM repo of
https://widevine-internal-review.googlesource.com/#/c/10171/ and
https://widevine-internal-review.googlesource.com/#/c/10172/ ]
Updated license_protocol.proto from constituent protos in google3
These changes make use of OEMCrypto v9 changes to support usage reporting.
Usage reporting may be enabled for streaming (by means of secure stops) and
offline playback by a provider session token specified in the license.
Changes include periodically updating usage information for relevant
sessions and reporting and releasing usage information as needed.
The CDM has removed all references to Secure Stops. This change
updates the Android API implementation to comply.
b/11987015
Change-Id: Ibb6f2ced4ef20ee349ca1ae6412ce686b2b5d085
This CL removes TODOs and email addresses from comments, unifies some
namespaces and cleans a few variable names. It is a copy of multiple
CLs on the widevine side.
Change-Id: I1bb649096476a5001a56d746427399de6a88ff69
The EME spec technically requires CDMs to treat audio/mp4 and
video/mp4 equivalently, as well as audio/webm and video/webm. We had
only been accepting video/mp4 and video/webm up until now.
This change also centralizes handling of init data types in the shared
CDM code instead of having it spread across multiple places in the
codebase.
(This is a merge of https://widevine-internal-review.googlesource.com/9532/
from the Widevine CDM repo.)
Bug: 13564917
Change-Id: Ib8bdfb2b003ffb00e8f0559561335abb3c5778b0
Adds support for WebM to the CDM. Decryption remains untouched,
however the initialization data is passed differently for WebM.
The previous version of this change broke playback for certain
apps that were being allowed to pass invalid MIME types before
this change was made. This version maintains backwards-compatiblity
for these apps for now by rewriting their MIME types as "video/mp4".
Merge of https://widevine-internal-review.googlesource.com/9225/
and https://widevine-internal-review.googlesource.com/9611/ from
the Widevine cdm repo.
Bug: 10638562
Change-Id: Ib37e838d08363f07b34b3a2e79a3f80a1f43e9ad
Adds support for WebM to the CDM. Decryption remains untouched,
however the initialization data is passed differently for WebM.
Merge of https://widevine-internal-review.googlesource.com/#/c/9225/
from the widevine cdm repo.
Bug: 10638562
Change-Id: I7b8cf4888fa408af77cee103f768f5a7c8ffdc7e
A staging Root CA public key was used in earlier releases to verify
service certificates. These were in turn used to encrypt the
client identification. This met our needs for an end-to-end verification.
Now that the production Root CA and service certs are available
this change replaces staging certs with production ones.
Merge of https://widevine-internal-review.googlesource.com/#/c/7560/ from
the widevine CDM repo
b/10329328
Change-Id: Id02649201d9a8ba4d08acc4166503341a5bbdd23
