110 lines
3.4 KiB
C
110 lines
3.4 KiB
C
/* example_application.c
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*
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* Copyright (C) 2006-2025 wolfSSL Inc.
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*
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* This file is part of wolfSSL.
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*
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* wolfSSL is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* wolfSSL is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <wolfssl/options.h>
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#include <wolfssl/ssl.h>
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#include <wolfssl/wolfcrypt/wc_port.h>
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#include <wolfssl/wolfcrypt/memory.h>
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/* Check if static memory is enabled */
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#ifdef WOLFSSL_STATIC_MEMORY
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#define STATIC_MEMORY_ENABLED 1
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#else
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#define STATIC_MEMORY_ENABLED 0
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#warning "This example requires wolfSSL to be built with --enable-staticmemory"
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#endif
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/* Example optimized bucket configuration for TLS 1.2 client */
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#define WOLFMEM_BUCKET_SIZES "16,22,30,40,86,133,184,256,344,512,864,1248,1812,3128,5518,8368"
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#define WOLFMEM_DIST_SIZES "2,3,7,7,7,7,7,7,7,7,7,7,8,8,8,8"
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/* Buffer size for static memory */
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#define STATIC_MEM_SIZE (1024*1024) /* 1MB */
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/* Static memory buffer */
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static unsigned char gStaticMemory[STATIC_MEM_SIZE];
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int main(void) {
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int ret = 0;
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#ifdef WOLFSSL_STATIC_MEMORY
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WOLFSSL_METHOD* method = NULL;
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WOLFSSL_CTX* ctx = NULL;
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void* heap = NULL;
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/* Initialize wolfSSL */
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wolfSSL_Init();
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/* Print memory configuration */
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printf("Static Memory Configuration:\n");
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printf("WOLFMEM_BUCKETS: %s\n", WOLFMEM_BUCKET_SIZES);
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printf("WOLFMEM_DIST: %s\n", WOLFMEM_DIST_SIZES);
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printf("Total Memory: %d bytes\n\n", STATIC_MEM_SIZE);
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/* Initialize static memory */
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ret = wolfSSL_CTX_load_static_memory(&method, NULL, gStaticMemory,
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STATIC_MEM_SIZE, 0, 1);
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if (ret != WOLFSSL_SUCCESS) {
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printf("Error: Failed to load static memory\n");
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ret = -1;
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goto cleanup;
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}
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/* Create and initialize WOLFSSL_CTX */
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if ((ctx = wolfSSL_CTX_new(method)) == NULL) {
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printf("Error: Failed to create WOLFSSL_CTX\n");
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ret = -1;
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goto cleanup;
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}
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/* Get heap statistics */
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if (wolfSSL_CTX_GetStatics(ctx, &heap) != 1) {
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printf("Error: Failed to get heap statistics\n");
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ret = -1;
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goto cleanup;
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}
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/* Print memory usage statistics */
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printf("Memory Usage Statistics:\n");
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printf("Total Memory: %d bytes\n", STATIC_MEM_SIZE);
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printf("Used Memory: %d bytes\n", wolfSSL_GetStaticMemoryUsed(heap));
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printf("Available Memory: %d bytes\n",
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STATIC_MEM_SIZE - wolfSSL_GetStaticMemoryUsed(heap));
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cleanup:
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if (ctx) wolfSSL_CTX_free(ctx);
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wolfSSL_Cleanup();
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#else
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printf("Error: This example requires wolfSSL to be built with "
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"--enable-staticmemory\n");
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printf("Please rebuild wolfSSL with static memory support:\n");
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printf(" cd ../../../wolfssl\n");
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printf(" ./configure --enable-staticmemory\n");
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printf(" make\n");
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ret = -1;
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#endif
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return ret;
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}
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