94 lines
2.7 KiB
C++
94 lines
2.7 KiB
C++
/*
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* Copyright (c) 2020 Embedded Planet
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* Copyright (c) 2020 ARM Limited
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License
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*/
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#if MCUBOOT_BOOTLOADER_BUILD
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#include <stdlib.h>
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#include "bootutil/bootutil.h"
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#include "bootutil/image.h"
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#include "hal/serial_api.h"
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#include "platform/mbed_application.h"
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#if (MCUBOOT_CRYPTO_BACKEND == MBEDTLS)
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#include "mbedtls/platform.h"
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#elif (MCUBOOT_CRYPTO_BACKEND == TINYCRYPT)
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#include "tinycrypt/ecc.h"
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#endif
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#define MBED_TRACE_MAX_LEVEL TRACE_LEVEL_DEBUG
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#define TRACE_GROUP "BL"
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#include "mbed-trace/mbed_trace.h"
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#if (MCUBOOT_CRYPTO_BACKEND == TINYCRYPT)
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/* XXX add this global definition for linking only
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* TinyCrypt is used for signature verification and ECIES using secp256r1 and AES encryption;
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* RNG is not required. So here we provide a stub.
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* See https://github.com/mcu-tools/mcuboot/pull/791#discussion_r514480098
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*/
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extern "C" {
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int default_CSPRNG(uint8_t *dest, unsigned int size) { return 0; }
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}
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#endif
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int main()
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{
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int rc;
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#ifdef MCUBOOT_HAVE_LOGGING
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mbed_trace_init();
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#if MCUBOOT_LOG_BOOTLOADER_ONLY
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mbed_trace_include_filters_set("MCUb,BL");
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#endif //MCUBOOT_LOG_BOOTLOADER_ONLY
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#endif //MCUBOOT_HAVE_LOGGING
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tr_info("Starting MCUboot");
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#if (MCUBOOT_CRYPTO_BACKEND == MBEDTLS)
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// Initialize mbedtls crypto for use by MCUboot
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mbedtls_platform_context unused_ctx;
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rc = mbedtls_platform_setup(&unused_ctx);
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if(rc != 0) {
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tr_error("Failed to setup Mbed TLS, error: %d", rc);
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exit(rc);
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}
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#elif (MCUBOOT_CRYPTO_BACKEND == TINYCRYPT)
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uECC_set_rng(0);
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#endif
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struct boot_rsp rsp;
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rc = boot_go(&rsp);
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if(rc != 0) {
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tr_error("Failed to locate firmware image, error: %d", rc);
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exit(rc);
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}
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uint32_t address = rsp.br_image_off + rsp.br_hdr->ih_hdr_size;
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// Workaround: The extra \n ensures the last trace gets flushed
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// before mbed_start_application() destroys the stack and jumps
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// to the application
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tr_info("Booting firmware image at 0x%x\n", address);
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// Run the application in the primary slot
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// Add header size offset to calculate the actual start address of application
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mbed_start_application(address);
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}
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#endif // MCUBOOT_BOOTLOADER_BUILD
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