structs.h

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/*
 * Copyright (c) 2020 Bitdefender
 * SPDX-License-Identifier: Apache-2.0
 */
#ifndef _INTSTRUCTS_H_
#define _INTSTRUCTS_H_

#include "introcore.h"

typedef _Function_class_(PFUNC_IntStructGetter)
INTSTATUS (*PFUNC_IntStructGetter)(
    _In_reads_bytes_(Size) const void *Buffer,
    _In_ size_t Size,
    _Inout_ size_t *Offset,
    _Inout_opt_ void *Context
    );


typedef struct _INT_STRUCT_INVARIANT
{
    size_t Offset;

    PFUNC_IntStructGetter Getter;
} INT_STRUCT_INVARIANT;

#define INT_OFFSET_NOT_INITIALIZED      ((size_t) -1)

#define INT_STRUCT_MAX_SEARCH_SIZE      ((size_t) PAGE_SIZE) // for now, just page size

#define INT_STRUCT_MAX_INVARIANT_CNT    ((size_t) 64)        // needed?

INTSTATUS
IntStructFill(
    _In_reads_bytes_(Size) const void *Buffer,
    _In_ size_t Size,
    _Inout_updates_(Count) INT_STRUCT_INVARIANT *Invariants,
    _In_ size_t Count,
    _In_ BOOLEAN LogErrors,
    _Inout_opt_ void *Context
    );

#endif // !_INTSTRUCTS_H_