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Merge "Only one function for reporting usage support." into sc-dev

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This commit is contained in:
Alex Dale
2021-04-16 19:47:10 +00:00
committed by Android (Google) Code Review
parent d59b009495 ca335b2c11
commit d4b24490f2
10 changed files with 149 additions and 169 deletions
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9
libwvdrmengine/cdm/core/include/cdm_session.h
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@@ -160,8 +160,8 @@ class CdmSession {
license_parser_->provider_session_token().size() > 0);
}
virtual CdmUsageSupportType get_usage_support_type() {
return usage_support_type_;
virtual bool supports_usage_info() const {
return usage_table_header_ != nullptr;
}
// This method will remove keys by resetting crypto resources and
@@ -298,8 +298,9 @@ class CdmSession {
// Usage related flags and data
bool is_initial_usage_update_;
bool is_usage_update_needed_;
CdmUsageSupportType usage_support_type_;
UsageTableHeader* usage_table_header_;
// Only assign |usage_table_header_| if capable of supporting usage
// information.
UsageTableHeader* usage_table_header_ = nullptr;
uint32_t usage_entry_number_;
CdmUsageEntry usage_entry_;
std::string usage_provider_session_token_;

35
libwvdrmengine/cdm/core/include/crypto_session.h
View File

@@ -238,14 +238,13 @@ class CryptoSession {
// Used to manipulate the CDM managed usage table header & entries,
// delegating calls to OEMCrypto.
// Usage support.
virtual CdmResponseType GetUsageSupportType(CdmUsageSupportType* type);
// The overloaded method with |security_level| may be called without a
// preceding call to Open. The other method must call Open first.
virtual bool UsageInformationSupport(bool* has_support);
virtual bool UsageInformationSupport(SecurityLevel security_level,
bool* has_support);
// Determines whether the OEMCrypto library supports usage info.
// As of V16, the only valid type of support is usage table header +
// usage entries.
// The first method will use a cached value if present.
virtual bool HasUsageInfoSupport(bool* has_support);
virtual bool HasUsageInfoSupport(SecurityLevel security_level,
bool* has_support);
// Usage report.
virtual CdmResponseType DeactivateUsageInformation(
@@ -329,6 +328,12 @@ class CryptoSession {
CdmResponseType SelectKey(const std::string& key_id,
CdmCipherMode cipher_mode);
// Retrieves the OEMCrypto usage info support for the specified
// |requested_security_level|.
// Caller should acquire the OEMCrypto read lock before calling.
bool HasUsageInfoSupportInternal(SecurityLevel requested_security_level,
bool* has_support);
// These methods fall back into each other in the order given, depending on
// how much data they were given and how much data OEMCrypto can accept in one
// call.
@@ -415,6 +420,15 @@ class CryptoSession {
static int session_count_;
static int termination_counter_;
enum CachedBooleanProperty {
// Property has not yet been checked/cached.
kBooleanUnset,
// Property has been cached as false.
kBooleanFalse,
// Property has been cached as true.
kBooleanTrue
};
metrics::CryptoMetrics* metrics_;
metrics::TimerMetric life_span_;
uint32_t system_id_;
@@ -430,8 +444,9 @@ class CryptoSession {
bool is_destination_buffer_type_valid_;
SecurityLevel requested_security_level_;
CdmUsageSupportType usage_support_type_;
UsageTableHeader* usage_table_header_;
// Open session-cached result of OEMCrypto_SupportsUsageTable().
CachedBooleanProperty has_usage_info_support_ = kBooleanUnset;
UsageTableHeader* usage_table_header_ = nullptr;
static UsageTableHeader* usage_table_header_l1_;
static UsageTableHeader* usage_table_header_l3_;