diff options
Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/nrf_crypto_init.c')
-rw-r--r-- | thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/nrf_crypto_init.c | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/nrf_crypto_init.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/nrf_crypto_init.c new file mode 100644 index 0000000..f86d5e2 --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/nrf_crypto_init.c @@ -0,0 +1,122 @@ +/** + * Copyright (c) 2016 - 2018, Nordic Semiconductor ASA + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form, except as embedded into a Nordic + * Semiconductor ASA integrated circuit in a product or a software update for + * such product, must reproduce the above copyright notice, this list of + * conditions and the following disclaimer in the documentation and/or other + * materials provided with the distribution. + * + * 3. Neither the name of Nordic Semiconductor ASA nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * 4. This software, with or without modification, must only be used with a + * Nordic Semiconductor ASA integrated circuit. + * + * 5. Any software provided in binary form under this license must not be reverse + * engineered, decompiled, modified and/or disassembled. + * + * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS + * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE + * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include "sdk_common.h" +#if NRF_MODULE_ENABLED(NRF_CRYPTO) + +#include "nrf_crypto_init.h" +#include "nrf_section.h" + + +// Create a named section for crypto backend data +NRF_SECTION_DEF(crypto_data, const nrf_crypto_backend_info_t); + + +#define NRF_CRYPTO_BACKEND_SECTION_ITEM_GET(i) NRF_SECTION_ITEM_GET(crypto_data, nrf_crypto_backend_info_t, (i)) +#define NRF_CRYPTO_BACKEND_SECTION_ITEM_COUNT NRF_SECTION_ITEM_COUNT(crypto_data, nrf_crypto_backend_info_t) + +typedef enum +{ + UNINITIALIZED, + INITIALIZING, + INITIALIZED, +} nrf_crypto_state_t; + +static volatile nrf_crypto_state_t m_state = UNINITIALIZED; + + +ret_code_t nrf_crypto_init(void) +{ + ret_code_t ret_val; + size_t const num_backends = NRF_CRYPTO_BACKEND_SECTION_ITEM_COUNT; + + m_state = INITIALIZING; + + // Iterate through each backends to call the init function + for (size_t i = 0; i < num_backends; i++) + { + nrf_crypto_backend_info_t const * p_backend = NRF_CRYPTO_BACKEND_SECTION_ITEM_GET(i); + ret_val = p_backend->init_fn(); + if (ret_val != NRF_SUCCESS) + { + return ret_val; + } + } + + // Set nrf_crypto to initialized + m_state = INITIALIZED; + return NRF_SUCCESS; +} + + +ret_code_t nrf_crypto_uninit(void) +{ + ret_code_t ret_val; + size_t const num_backends = NRF_CRYPTO_BACKEND_SECTION_ITEM_COUNT; + + // Iterate through each backends to call the uninit function + for (size_t i = 0; i < num_backends; i++) + { + nrf_crypto_backend_info_t const * p_backend = NRF_CRYPTO_BACKEND_SECTION_ITEM_GET(i); + ret_val = p_backend->uninit_fn(); + if (ret_val != NRF_SUCCESS) + { + return ret_val; + } + } + + // Set nrf_crypto to uninitialized + m_state = UNINITIALIZED; + return NRF_SUCCESS; +} + + +bool nrf_crypto_is_initialized(void) +{ + return (m_state == INITIALIZED); +} + + +bool nrf_crypto_is_initializing(void) +{ + return ((m_state == INITIALIZED) || m_state == INITIALIZING); +} + +#endif // NRF_MODULE_ENABLED(NRF_CRYPTO) |