e75d3a6512
[ Merge of http://go/wvgerrit/23742 ] In OEMCrypto V13, usage table header and usage entries are stored in persistent non-secure storage and loaded and unloaded from the TEE. Information needs to be maintained to assist finding the associated license or usage information. This information has been revised for usage information to use key set id and usage info file name rather than provider session token and app id. The app id is stored in a hashed form (usage info file name) and was not extractable during the upgrade process to OEMCrypto V13. Due to this DeviceFiles UsageInfo routines have switched to use usage info file name rather than app id as a key. b/34327459 Test: Verified by unit/integration tests on angler Change-Id: I95aa0435d0955c61fc45b951f5b5d44de2ba5cfc
116 lines
2.9 KiB
Protocol Buffer
116 lines
2.9 KiB
Protocol Buffer
// ----------------------------------------------------------------------------
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// device_files.proto
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// ----------------------------------------------------------------------------
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// Copyright 2013 Google Inc. All Rights Reserved.
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//
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// Description:
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// Format of various files stored at the device.
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//
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syntax = "proto2";
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package video_widevine_client.sdk;
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// need this if we are using libprotobuf-cpp-2.3.0-lite
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option optimize_for = LITE_RUNTIME;
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message NameValue {
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optional string name = 1;
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optional string value = 2;
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}
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message DeviceCertificate {
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optional bytes certificate = 1;
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optional bytes wrapped_private_key = 2;
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}
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message License {
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enum LicenseState {
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ACTIVE = 1;
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RELEASING = 2;
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}
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optional LicenseState state = 1;
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optional bytes pssh_data = 2;
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optional bytes license_request = 3;
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optional bytes license = 4;
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optional bytes renewal_request = 5;
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optional bytes renewal = 6;
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optional bytes release_server_url = 7;
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optional int64 playback_start_time = 8 [default = 0];
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optional int64 last_playback_time = 9 [default = 0];
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repeated NameValue app_parameters = 10;
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// This will be 0/missing if the grace period has not expired; otherwise it
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// contains the playback_start_time we should use as an override. This is
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// ignored if there is no grace period.
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optional int64 grace_period_end_time = 11 [default = 0];
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optional bytes usage_entry = 12;
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optional int64 usage_entry_number = 13;
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}
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message UsageInfo {
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message ProviderSession {
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optional bytes token = 1;
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optional bytes license_request = 2;
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optional bytes license = 3;
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optional bytes key_set_id = 4;
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optional bytes usage_entry = 5;
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optional int64 usage_entry_number = 6;
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}
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repeated ProviderSession sessions = 1;
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}
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message HlsAttributes {
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enum Method {
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AES_128 = 1;
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SAMPLE_AES = 2;
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}
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optional Method method = 1;
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optional bytes media_segment_iv = 2;
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}
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message UsageTableInfo {
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message UsageEntryInfo {
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enum UsageEntryStorage {
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LICENSE = 1;
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USAGE_INFO = 2;
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UNKNOWN = 3;
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}
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optional UsageEntryStorage storage = 1;
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optional bytes key_set_id = 2;
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optional bytes usage_info_file_name = 3; // hash of the app_id
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}
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optional bytes usage_table_header = 1;
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repeated UsageEntryInfo usage_entry_info = 2;
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}
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message File {
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enum FileType {
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DEVICE_CERTIFICATE = 1;
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LICENSE = 2;
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USAGE_INFO = 3;
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HLS_ATTRIBUTES = 4;
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USAGE_TABLE_INFO = 5;
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}
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enum FileVersion {
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VERSION_1 = 1;
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}
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optional FileType type = 1;
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optional FileVersion version = 2 [default = VERSION_1];
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optional DeviceCertificate device_certificate = 3;
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optional License license = 4;
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optional UsageInfo usage_info = 5;
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optional HlsAttributes hls_attributes = 6;
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optional UsageTableInfo usage_table_info = 7;
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}
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message HashedFile {
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optional bytes file = 1;
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// A raw (not hex-encoded) SHA256, taken over the bytes of 'file'.
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optional bytes hash = 2;
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}
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