Files
android/libwvdrmengine/oemcrypto/ref/src/oemcrypto_session_key_table.h
Fred Gylys-Colwell e9dfca1219 The Entitlement key map was not being cleaned up.
Merge from Widevine repo of http://go/wvgerrit/100385

The map now contains unique_ptr instead of raw pointers
to ensure the memory is released.

Bug: 156780432 OEMCrypto Fuzzing: Fix OEMCrypto Memory Leak.
Test: oemcrypto reference code only
Change-Id: I78054f9207399f052d6e4bfdfa96824f6e050bac
2020-05-19 10:58:05 -07:00

74 lines
2.1 KiB
C++

// Copyright 2018 Google LLC. All Rights Reserved. This file and proprietary
// source code may only be used and distributed under the Widevine Master
// License Agreement.
//
// Reference implementation of OEMCrypto APIs
//
#ifndef REF_OEMCRYPTO_SESSION_KEY_TABLE_H_
#define REF_OEMCRYPTO_SESSION_KEY_TABLE_H_
#include <stdint.h>
#include <map>
#include <memory>
#include <vector>
#include "disallow_copy_and_assign.h"
#include "oemcrypto_key_ref.h"
#include "oemcrypto_types.h"
namespace wvoec_ref {
class SessionContext;
class CryptoEngine;
class UsageTable;
class UsageTableEntry;
typedef std::vector<uint8_t> KeyId;
typedef std::map<KeyId, std::unique_ptr<Key>> KeyMap;
typedef std::map<KeyId, std::unique_ptr<EntitlementKey>> EntitlementKeyMap;
// SessionKeyTable holds the keys for the current session
class SessionKeyTable {
public:
SessionKeyTable() {}
~SessionKeyTable() {}
bool Insert(const KeyId key_id, const Key& key_data);
Key* Find(const KeyId key_id);
Key* FirstKey() { return keys_.begin()->second.get(); }
void Remove(const KeyId key_id);
void UpdateDuration(const KeyControlBlock& control);
size_t size() const { return keys_.size(); }
private:
KeyMap keys_;
CORE_DISALLOW_COPY_AND_ASSIGN(SessionKeyTable);
};
class EntitlementKeyTable {
typedef std::map<KeyId, KeyId> ContentIdToEntitlementIdMap;
public:
EntitlementKeyTable() {}
~EntitlementKeyTable() {}
bool Insert(const KeyId key_id, const Key& key_data);
Key* Find(const KeyId key_id);
Key* FirstKey() { return keys_.begin()->second.get(); }
void Remove(const KeyId key_id);
void UpdateDuration(const KeyControlBlock& control);
size_t size() const { return contentid_to_entitlementid_.size(); }
bool SetContentKey(const KeyId& entitlement_id, const KeyId& content_key_id,
const std::vector<uint8_t> content_key);
EntitlementKey* GetEntitlementKey(const KeyId& entitlement_id);
private:
EntitlementKeyMap keys_;
ContentIdToEntitlementIdMap contentid_to_entitlementid_;
CORE_DISALLOW_COPY_AND_ASSIGN(EntitlementKeyTable);
};
} // namespace wvoec_ref
#endif // REF_OEMCRYPTO_SESSION_KEY_TABLE_H_