5f209e6980
Note that this version does not have Widevine Provisioning 4.0 support. It is only suitable for device upgrades. A new patch with provisioning 4.0 support will be made later.
60 lines
2.1 KiB
C++
60 lines
2.1 KiB
C++
// Copyright 2018 Google LLC. All Rights Reserved. This file and proprietary
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// source code may only be used and distributed under the Widevine Master
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// License Agreement.
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#ifndef ECM_PARSER_H
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#define ECM_PARSER_H
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#include <memory>
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#include <vector>
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#include "cas_types.h"
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#include "media_cas.pb.h"
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namespace wvcas {
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enum class KeySlotId { kEvenKeySlot, kOddKeySlot };
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// EcmParser allows random access to the fields of an ECM.
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class EcmParser {
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public:
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EcmParser() = default;
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virtual ~EcmParser() {}
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// The EcmParser factory method.
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// Validates the ecm. If validations is successful returns true and constructs
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// an EcmParser in |parser| using |ecm|.
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static std::unique_ptr<EcmParser> Create(const CasEcm& ecm);
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// Accessor methods.
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virtual uint8_t version() const = 0;
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virtual CryptoMode crypto_mode() const = 0;
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virtual bool rotation_enabled() const = 0;
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virtual size_t content_iv_size() const = 0;
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virtual uint8_t age_restriction() const = 0;
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virtual std::vector<uint8_t> entitlement_key_id(KeySlotId id) const = 0;
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virtual std::vector<uint8_t> content_key_id(KeySlotId id) const = 0;
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virtual std::vector<uint8_t> wrapped_key_data(KeySlotId id) const = 0;
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virtual std::vector<uint8_t> wrapped_key_iv(KeySlotId id) const = 0;
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virtual std::vector<uint8_t> content_iv(KeySlotId id) const = 0;
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// Process group content keys instead of the normal content keys.
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virtual bool set_group_id(const std::string& group_id) = 0;
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virtual bool has_fingerprinting() const = 0;
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virtual video_widevine::Fingerprinting fingerprinting() const = 0;
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virtual bool has_service_blocking() const = 0;
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virtual video_widevine::ServiceBlocking service_blocking() const = 0;
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// The serialized payload that the signature is calculated on.
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virtual std::string ecm_serialized_payload() const = 0;
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virtual std::string signature() const = 0;
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virtual bool is_entitlement_rotation_enabled() const = 0;
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virtual uint32_t entitlement_period_index() const = 0;
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virtual uint32_t entitlement_rotation_window_left() const = 0;
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};
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} // namespace wvcas
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#endif // ECM_PARSER_H
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