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usbloadergx/source/libs/libwolfssl/wolfcrypt/memory.h

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/* memory.h
*
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* Copyright (C) 2006-2021 wolfSSL Inc.
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*
* This file is part of wolfSSL.
*
* wolfSSL is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* wolfSSL is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
*/
/* submitted by eof */
/*!
\file wolfssl/wolfcrypt/memory.h
*/
#ifndef WOLFSSL_MEMORY_H
#define WOLFSSL_MEMORY_H
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#if !defined(STRING_USER) && !defined(WOLFSSL_LINUXKM)
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#include <stdlib.h>
#endif
#include <libs/libwolfssl/wolfcrypt/types.h>
#ifdef __cplusplus
extern "C" {
#endif
#ifdef WOLFSSL_FORCE_MALLOC_FAIL_TEST
WOLFSSL_API void wolfSSL_SetMemFailCount(int memFailCount);
#endif
#ifdef WOLFSSL_STATIC_MEMORY
#ifdef WOLFSSL_DEBUG_MEMORY
typedef void *(*wolfSSL_Malloc_cb)(size_t size, void* heap, int type, const char* func, unsigned int line);
typedef void (*wolfSSL_Free_cb)(void *ptr, void* heap, int type, const char* func, unsigned int line);
typedef void *(*wolfSSL_Realloc_cb)(void *ptr, size_t size, void* heap, int type, const char* func, unsigned int line);
WOLFSSL_API void* wolfSSL_Malloc(size_t size, void* heap, int type, const char* func, unsigned int line);
WOLFSSL_API void wolfSSL_Free(void *ptr, void* heap, int type, const char* func, unsigned int line);
WOLFSSL_API void* wolfSSL_Realloc(void *ptr, size_t size, void* heap, int type, const char* func, unsigned int line);
#else
typedef void *(*wolfSSL_Malloc_cb)(size_t size, void* heap, int type);
typedef void (*wolfSSL_Free_cb)(void *ptr, void* heap, int type);
typedef void *(*wolfSSL_Realloc_cb)(void *ptr, size_t size, void* heap, int type);
WOLFSSL_API void* wolfSSL_Malloc(size_t size, void* heap, int type);
WOLFSSL_API void wolfSSL_Free(void *ptr, void* heap, int type);
WOLFSSL_API void* wolfSSL_Realloc(void *ptr, size_t size, void* heap, int type);
#endif /* WOLFSSL_DEBUG_MEMORY */
#else
#ifdef WOLFSSL_DEBUG_MEMORY
typedef void *(*wolfSSL_Malloc_cb)(size_t size, const char* func, unsigned int line);
typedef void (*wolfSSL_Free_cb)(void *ptr, const char* func, unsigned int line);
typedef void *(*wolfSSL_Realloc_cb)(void *ptr, size_t size, const char* func, unsigned int line);
/* Public in case user app wants to use XMALLOC/XFREE */
WOLFSSL_API void* wolfSSL_Malloc(size_t size, const char* func, unsigned int line);
WOLFSSL_API void wolfSSL_Free(void *ptr, const char* func, unsigned int line);
WOLFSSL_API void* wolfSSL_Realloc(void *ptr, size_t size, const char* func, unsigned int line);
#else
typedef void *(*wolfSSL_Malloc_cb)(size_t size);
typedef void (*wolfSSL_Free_cb)(void *ptr);
typedef void *(*wolfSSL_Realloc_cb)(void *ptr, size_t size);
/* Public in case user app wants to use XMALLOC/XFREE */
WOLFSSL_API void* wolfSSL_Malloc(size_t size);
WOLFSSL_API void wolfSSL_Free(void *ptr);
WOLFSSL_API void* wolfSSL_Realloc(void *ptr, size_t size);
#endif /* WOLFSSL_DEBUG_MEMORY */
#endif /* WOLFSSL_STATIC_MEMORY */
/* Public get/set functions */
WOLFSSL_API int wolfSSL_SetAllocators(wolfSSL_Malloc_cb,
wolfSSL_Free_cb,
wolfSSL_Realloc_cb);
WOLFSSL_API int wolfSSL_GetAllocators(wolfSSL_Malloc_cb*,
wolfSSL_Free_cb*,
wolfSSL_Realloc_cb*);
#ifdef WOLFSSL_STATIC_MEMORY
#define WOLFSSL_STATIC_TIMEOUT 1
#ifndef WOLFSSL_STATIC_ALIGN
#define WOLFSSL_STATIC_ALIGN 16
#endif
#ifndef WOLFMEM_MAX_BUCKETS
#define WOLFMEM_MAX_BUCKETS 9
#endif
#define WOLFMEM_DEF_BUCKETS 9 /* number of default memory blocks */
#ifndef WOLFMEM_IO_SZ
#define WOLFMEM_IO_SZ 16992 /* 16 byte aligned */
#endif
#ifndef WOLFMEM_BUCKETS
#ifndef SESSION_CERTS
/* default size of chunks of memory to separate into */
#ifndef LARGEST_MEM_BUCKET
#define LARGEST_MEM_BUCKET 16128
#endif
#define WOLFMEM_BUCKETS 64,128,256,512,1024,2432,3456,4544,\
LARGEST_MEM_BUCKET
#elif defined (OPENSSL_EXTRA)
/* extra storage in structs for multiple attributes and order */
#ifndef LARGEST_MEM_BUCKET
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#ifdef WOLFSSL_TLS13
#define LARGEST_MEM_BUCKET 30400
#else
#define LARGEST_MEM_BUCKET 25600
#endif
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#endif
#define WOLFMEM_BUCKETS 64,128,256,512,1024,2432,3360,4480,\
LARGEST_MEM_BUCKET
#elif defined (WOLFSSL_CERT_EXT)
/* certificate extensions requires 24k for the SSL struct */
#ifndef LARGEST_MEM_BUCKET
#define LARGEST_MEM_BUCKET 24576
#endif
#define WOLFMEM_BUCKETS 64,128,256,512,1024,2432,3456,4544,\
LARGEST_MEM_BUCKET
#else
/* increase 23k for object member of WOLFSSL_X509_NAME_ENTRY */
#ifndef LARGEST_MEM_BUCKET
#define LARGEST_MEM_BUCKET 23440
#endif
#define WOLFMEM_BUCKETS 64,128,256,512,1024,2432,3456,4544,\
LARGEST_MEM_BUCKET
#endif
#endif
#ifndef WOLFMEM_DIST
#ifndef WOLFSSL_STATIC_MEMORY_SMALL
#define WOLFMEM_DIST 49,10,6,14,5,6,9,1,1
#else
/* Low resource and not RSA */
#define WOLFMEM_DIST 29, 7,6, 9,4,4,0,0,0
#endif
#endif
/* flags for loading static memory (one hot bit) */
#define WOLFMEM_GENERAL 0x01
#define WOLFMEM_IO_POOL 0x02
#define WOLFMEM_IO_POOL_FIXED 0x04
#define WOLFMEM_TRACK_STATS 0x08
#ifndef WOLFSSL_MEM_GUARD
#define WOLFSSL_MEM_GUARD
typedef struct WOLFSSL_MEM_STATS WOLFSSL_MEM_STATS;
typedef struct WOLFSSL_MEM_CONN_STATS WOLFSSL_MEM_CONN_STATS;
#endif
struct WOLFSSL_MEM_CONN_STATS {
word32 peakMem; /* peak memory usage */
word32 curMem; /* current memory usage */
word32 peakAlloc; /* peak memory allocations */
word32 curAlloc; /* current memory allocations */
word32 totalAlloc;/* total memory allocations for lifetime */
word32 totalFr; /* total frees for lifetime */
};
struct WOLFSSL_MEM_STATS {
word32 curAlloc; /* current memory allocations */
word32 totalAlloc;/* total memory allocations for lifetime */
word32 totalFr; /* total frees for lifetime */
word32 totalUse; /* total amount of memory used in blocks */
word32 avaIO; /* available IO specific pools */
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word32 maxHa; /* max number of concurrent handshakes allowed */
word32 maxIO; /* max number of concurrent IO connections allowed */
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word32 blockSz[WOLFMEM_MAX_BUCKETS]; /* block sizes in stacks */
word32 avaBlock[WOLFMEM_MAX_BUCKETS];/* ava block sizes */
word32 usedBlock[WOLFMEM_MAX_BUCKETS];
int flag; /* flag used */
};
typedef struct wc_Memory wc_Memory; /* internal structure for mem bucket */
typedef struct WOLFSSL_HEAP {
wc_Memory* ava[WOLFMEM_MAX_BUCKETS];
wc_Memory* io; /* list of buffers to use for IO */
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word32 maxHa; /* max concurrent handshakes */
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word32 curHa;
word32 maxIO; /* max concurrent IO connections */
word32 curIO;
word32 sizeList[WOLFMEM_MAX_BUCKETS];/* memory sizes in ava list */
word32 distList[WOLFMEM_MAX_BUCKETS];/* general distribution */
word32 inUse; /* amount of memory currently in use */
word32 ioUse;
word32 alloc; /* total number of allocs */
word32 frAlc; /* total number of frees */
int flag;
wolfSSL_Mutex memory_mutex;
} WOLFSSL_HEAP;
/* structure passed into XMALLOC as heap hint
* having this abstraction allows tracking statistics of individual ssl's
*/
typedef struct WOLFSSL_HEAP_HINT {
WOLFSSL_HEAP* memory;
WOLFSSL_MEM_CONN_STATS* stats; /* hold individual connection stats */
wc_Memory* outBuf; /* set if using fixed io buffers */
wc_Memory* inBuf;
byte haFlag; /* flag used for checking handshake count */
} WOLFSSL_HEAP_HINT;
WOLFSSL_API int wc_LoadStaticMemory(WOLFSSL_HEAP_HINT** pHint,
unsigned char* buf, unsigned int sz, int flag, int max);
WOLFSSL_LOCAL int wolfSSL_init_memory_heap(WOLFSSL_HEAP* heap);
WOLFSSL_LOCAL int wolfSSL_load_static_memory(byte* buffer, word32 sz,
int flag, WOLFSSL_HEAP* heap);
WOLFSSL_LOCAL int wolfSSL_GetMemStats(WOLFSSL_HEAP* heap,
WOLFSSL_MEM_STATS* stats);
WOLFSSL_LOCAL int SetFixedIO(WOLFSSL_HEAP* heap, wc_Memory** io);
WOLFSSL_LOCAL int FreeFixedIO(WOLFSSL_HEAP* heap, wc_Memory** io);
WOLFSSL_API int wolfSSL_StaticBufferSz(byte* buffer, word32 sz, int flag);
WOLFSSL_API int wolfSSL_MemoryPaddingSz(void);
#endif /* WOLFSSL_STATIC_MEMORY */
#ifdef WOLFSSL_STACK_LOG
WOLFSSL_API void __attribute__((no_instrument_function))
__cyg_profile_func_enter(void *func, void *caller);
WOLFSSL_API void __attribute__((no_instrument_function))
__cyg_profile_func_exit(void *func, void *caller);
#endif /* WOLFSSL_STACK_LOG */
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* WOLFSSL_MEMORY_H */
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