wolf SSL
wolfSSL 3.11.1 for TLS1.3 beta
Diff: wolfssl/wolfcrypt/memory.h
- Revision:
- 11:cee25a834751
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/wolfssl/wolfcrypt/memory.h Tue May 30 01:44:10 2017 +0000
@@ -0,0 +1,190 @@
+/* memory.h
+ *
+ * Copyright (C) 2006-2016 wolfSSL Inc.
+ *
+ * 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 */
+
+
+#ifndef WOLFSSL_MEMORY_H
+#define WOLFSSL_MEMORY_H
+
+#include <stdlib.h>
+#include <wolfssl/wolfcrypt/types.h>
+
+#ifdef __cplusplus
+ extern "C" {
+#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 */
+ #define WOLFMEM_IO_SZ 16992 /* 16 byte aligned */
+ #ifndef WOLFMEM_BUCKETS
+ /* default size of chunks of memory to seperate into
+ * having session certs enabled makes a 21k SSL struct */
+ #ifndef SESSION_CERTS
+ #define WOLFMEM_BUCKETS 64,128,256,512,1024,2432,3456,4544,16128
+ #else
+ #define WOLFMEM_BUCKETS 64,128,256,512,1024,2432,3456,4544,21056
+ #endif
+ #endif
+ #ifndef WOLFMEM_DIST
+ #define WOLFMEM_DIST 8,4,4,12,4,5,8,1,1
+ #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 */
+ word32 maxHa; /* max number of concurent handshakes allowed */
+ word32 maxIO; /* max number of concurent IO connections allowed */
+ 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 */
+ word32 maxHa; /* max concurent handshakes */
+ 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 __cplusplus
+ } /* extern "C" */
+#endif
+
+#endif /* WOLFSSL_MEMORY_H */
+
+