123 lines
4.0 KiB
C
123 lines
4.0 KiB
C
/**
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* Copyright (c) 2016 - 2020, Nordic Semiconductor ASA
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form, except as embedded into a Nordic
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* Semiconductor ASA integrated circuit in a product or a software update for
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* such product, must reproduce the above copyright notice, this list of
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* conditions and the following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* 4. This software, with or without modification, must only be used with a
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* Nordic Semiconductor ASA integrated circuit.
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*
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* 5. Any software provided in binary form under this license must not be reverse
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* engineered, decompiled, modified and/or disassembled.
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*
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* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include "sdk_common.h"
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#if NRF_MODULE_ENABLED(NRF_CRYPTO)
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#include "nrf_crypto_init.h"
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#include "nrf_section.h"
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// Create a named section for crypto backend data
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NRF_SECTION_DEF(crypto_data, const nrf_crypto_backend_info_t);
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#define NRF_CRYPTO_BACKEND_SECTION_ITEM_GET(i) NRF_SECTION_ITEM_GET(crypto_data, nrf_crypto_backend_info_t, (i))
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#define NRF_CRYPTO_BACKEND_SECTION_ITEM_COUNT NRF_SECTION_ITEM_COUNT(crypto_data, nrf_crypto_backend_info_t)
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typedef enum
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{
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UNINITIALIZED,
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INITIALIZING,
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INITIALIZED,
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} nrf_crypto_state_t;
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static volatile nrf_crypto_state_t m_state = UNINITIALIZED;
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ret_code_t nrf_crypto_init(void)
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{
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ret_code_t ret_val;
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size_t const num_backends = NRF_CRYPTO_BACKEND_SECTION_ITEM_COUNT;
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m_state = INITIALIZING;
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// Iterate through each backends to call the init function
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for (size_t i = 0; i < num_backends; i++)
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{
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nrf_crypto_backend_info_t const * p_backend = NRF_CRYPTO_BACKEND_SECTION_ITEM_GET(i);
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ret_val = p_backend->init_fn();
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if (ret_val != NRF_SUCCESS)
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{
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return ret_val;
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}
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}
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// Set nrf_crypto to initialized
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m_state = INITIALIZED;
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return NRF_SUCCESS;
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}
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ret_code_t nrf_crypto_uninit(void)
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{
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ret_code_t ret_val;
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size_t const num_backends = NRF_CRYPTO_BACKEND_SECTION_ITEM_COUNT;
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// Iterate through each backends to call the uninit function
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for (size_t i = 0; i < num_backends; i++)
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{
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nrf_crypto_backend_info_t const * p_backend = NRF_CRYPTO_BACKEND_SECTION_ITEM_GET(i);
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ret_val = p_backend->uninit_fn();
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if (ret_val != NRF_SUCCESS)
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{
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return ret_val;
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}
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}
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// Set nrf_crypto to uninitialized
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m_state = UNINITIALIZED;
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return NRF_SUCCESS;
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}
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bool nrf_crypto_is_initialized(void)
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{
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return (m_state == INITIALIZED);
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}
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bool nrf_crypto_is_initializing(void)
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{
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return ((m_state == INITIALIZED) || m_state == INITIALIZING);
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}
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#endif // NRF_MODULE_ENABLED(NRF_CRYPTO)
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