17d37aa17SJuan Castillo /* 2*66b4c166Sdp-arm * Copyright (c) 2015-2017, ARM Limited and Contributors. All rights reserved. 37d37aa17SJuan Castillo * 47d37aa17SJuan Castillo * Redistribution and use in source and binary forms, with or without 57d37aa17SJuan Castillo * modification, are permitted provided that the following conditions are met: 67d37aa17SJuan Castillo * 77d37aa17SJuan Castillo * Redistributions of source code must retain the above copyright notice, this 87d37aa17SJuan Castillo * list of conditions and the following disclaimer. 97d37aa17SJuan Castillo * 107d37aa17SJuan Castillo * Redistributions in binary form must reproduce the above copyright notice, 117d37aa17SJuan Castillo * this list of conditions and the following disclaimer in the documentation 127d37aa17SJuan Castillo * and/or other materials provided with the distribution. 137d37aa17SJuan Castillo * 147d37aa17SJuan Castillo * Neither the name of ARM nor the names of its contributors may be used 157d37aa17SJuan Castillo * to endorse or promote products derived from this software without specific 167d37aa17SJuan Castillo * prior written permission. 177d37aa17SJuan Castillo * 187d37aa17SJuan Castillo * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 197d37aa17SJuan Castillo * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 207d37aa17SJuan Castillo * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 217d37aa17SJuan Castillo * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 227d37aa17SJuan Castillo * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 237d37aa17SJuan Castillo * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 247d37aa17SJuan Castillo * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 257d37aa17SJuan Castillo * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 267d37aa17SJuan Castillo * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 277d37aa17SJuan Castillo * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 287d37aa17SJuan Castillo * POSSIBILITY OF SUCH DAMAGE. 297d37aa17SJuan Castillo */ 307d37aa17SJuan Castillo 317d37aa17SJuan Castillo #include <assert.h> 327d37aa17SJuan Castillo 337d37aa17SJuan Castillo /* mbed TLS headers */ 34649dbf6fSJuan Castillo #include <mbedtls/memory_buffer_alloc.h> 357d37aa17SJuan Castillo 367d37aa17SJuan Castillo /* 377d37aa17SJuan Castillo * mbed TLS heap 387d37aa17SJuan Castillo */ 39*66b4c166Sdp-arm #if (TBBR_KEY_ALG_ID == TBBR_ECDSA) 407d37aa17SJuan Castillo #define MBEDTLS_HEAP_SIZE (14*1024) 41*66b4c166Sdp-arm #elif (TBBR_KEY_ALG_ID == TBBR_RSA) 427d37aa17SJuan Castillo #define MBEDTLS_HEAP_SIZE (8*1024) 437d37aa17SJuan Castillo #endif 447d37aa17SJuan Castillo static unsigned char heap[MBEDTLS_HEAP_SIZE]; 457d37aa17SJuan Castillo 467d37aa17SJuan Castillo /* 477d37aa17SJuan Castillo * mbed TLS initialization function 487d37aa17SJuan Castillo */ 497d37aa17SJuan Castillo void mbedtls_init(void) 507d37aa17SJuan Castillo { 517d37aa17SJuan Castillo static int ready; 527d37aa17SJuan Castillo 537d37aa17SJuan Castillo if (!ready) { 547d37aa17SJuan Castillo /* Initialize the mbed TLS heap */ 55649dbf6fSJuan Castillo mbedtls_memory_buffer_alloc_init(heap, MBEDTLS_HEAP_SIZE); 567d37aa17SJuan Castillo ready = 1; 577d37aa17SJuan Castillo } 587d37aa17SJuan Castillo } 59