119 lines
4.4 KiB
C
119 lines
4.4 KiB
C
/*
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* Copyright 2019 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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*/
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#ifndef ODKITEE_SERIALIZATION_BASE_H_
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#define ODKITEE_SERIALIZATION_BASE_H_
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#include <stddef.h>
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#include <stdint.h>
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#include "OEMCryptoCENC.h"
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#include "message.h"
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#include "shared_memory_interface.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef char* c_str;
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/*
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* In the OEMCrypto API, the lengths of variable length buffers can be
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* of various types: base types of size_t or uint32_t and [in] values
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* or [in/out] pointers. The LengthType struct is used to pass
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* lengths in a consistent way to the primitives that take lengths as
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* arguments.
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*/
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typedef enum {
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LENGTH_TYPE_SIZE_T,
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LENGTH_TYPE_UINT32_T,
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LENGTH_TYPE_SIZE_T_POINTER,
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LENGTH_TYPE_UINT32_T_POINTER,
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LENGTH_TYPE_SIZE_T_DOUBLE_POINTER,
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LENGTH_TYPE_UINT32_T_DOUBLE_POINTER
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} LengthTypeTag;
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typedef struct {
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LengthTypeTag tag;
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union {
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size_t size_t_value;
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uint32_t uint32_t_value;
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const size_t* size_t_pointer;
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const uint32_t* uint32_t_pointer;
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size_t** size_t_double_pointer;
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uint32_t** uint32_t_double_pointer;
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} type;
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} LengthType;
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LengthType LengthFromSizeT(size_t length);
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LengthType LengthFromUint32T(uint32_t length);
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LengthType LengthFromSizeTPointer(const size_t* length);
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LengthType LengthFromUint32TPointer(const uint32_t* length);
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LengthType LengthFromSizeTDoublePointer(size_t** length);
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LengthType LengthFromUint32TDoublePointer(uint32_t** length);
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size_t LengthAsSizeT(LengthType length_type);
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bool LengthIsNull(LengthType length_type);
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void ODK_Pack_bool(Message* message, const bool* value);
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void ODK_Pack_size_t(Message* message, const size_t* value);
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void ODK_Pack_c_str(Message* message, const char* value);
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void ODK_Pack_uint8_t(Message* message, const uint8_t* value);
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void ODK_Pack_uint16_t(Message* message, const uint16_t* value);
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void ODK_Pack_uint32_t(Message* message, const uint32_t* value);
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void ODK_Pack_uint64_t(Message* message, const uint64_t* value);
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bool ODK_PackBoolValue(Message* message, bool value);
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bool ODK_PackIsNull(Message* message, const void* value);
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void ODK_PackAlloc(Message* message, const void* address);
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void ODK_PackMemory(Message* message, const uint8_t* addr,
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LengthType length);
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void ODK_PackArray(Message* message, const uint8_t* addr, size_t length);
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typedef void (*ObjPacker)(Message* message, const uint8_t* obj);
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void ODK_PackObjArray(Message* message, const uint8_t* address,
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LengthType length, size_t size, ObjPacker packer);
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void ODK_PackEOM(Message* message); /* end of message */
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void ODK_PackSharedInputBuffer(Message* message, uint16_t index,
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const uint8_t* address, const LengthType);
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void ODK_PackSharedOutputBuffer(Message* message, const uint8_t* address,
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LengthType length);
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void ODK_Unpack_bool(Message* message, bool* value);
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void ODK_Unpack_size_t(Message* message, size_t* value);
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void ODK_Unpack_c_str(Message* message, char** value);
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void ODK_Unpack_uint8_t(Message* message, uint8_t* value);
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void ODK_Unpack_uint16_t(Message* message, uint16_t* value);
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void ODK_Unpack_uint32_t(Message* message, uint32_t* value);
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void ODK_Unpack_uint64_t(Message* message, uint64_t* value);
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bool ODK_UnpackBoolValue(Message* message);
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bool ODK_UnpackIsNull(Message* message);
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uint8_t* ODK_UnpackAlloc(Message* message, size_t size);
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uint8_t* ODK_UnpackAllocBuffer(Message* message, LengthType length,
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size_t size);
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void ODK_UnpackArray(Message* message, uint8_t* addr, size_t length);
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typedef void (*ObjUnpacker)(Message* message, uint8_t* obj);
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void ODK_UnpackObjArray(Message* message, uint8_t** address,
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LengthType length, size_t size,
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ObjUnpacker unpacker);
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void ODK_UnpackPointerToMemory(Message* message, uint8_t** addr);
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uint8_t* ODK_UnpackSharedBuffer(Message* message, uint16_t index,
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LengthType length);
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void ODK_UnpackSharedInputBuffer(Message* message, uint16_t index,
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uint8_t** address, LengthType length);
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void ODK_UnpackSharedOutputBuffer(Message* message, uint16_t index,
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uint8_t** address, LengthType length);
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void ODK_UnpackEOM(Message* message);
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif // ODKITEE_SERIALIZATION_BASE_H_
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