96893e84ce
This commit replaces direct entropy device driver class with `sys_csrand_get`, which is recommended way of getting crypto secure random buffer. Signed-off-by: Przemyslaw Bida <przemyslaw.bida@nordicsemi.no>
35 lines
748 B
C
35 lines
748 B
C
/*
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* Copyright (c) 2019 Nordic Semiconductor ASA
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/kernel.h>
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#include <zephyr/random/rand32.h>
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#include <zephyr/logging/log.h>
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#include <openthread/platform/entropy.h>
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LOG_MODULE_REGISTER(net_otPlat_entropy, CONFIG_OPENTHREAD_L2_LOG_LEVEL);
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#if !defined(CONFIG_ENTROPY_HAS_DRIVER)
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#error OpenThread requires an entropy source for a TRNG
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#endif
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otError otPlatEntropyGet(uint8_t *aOutput, uint16_t aOutputLength)
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{
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int err;
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if ((aOutput == NULL) || (aOutputLength == 0)) {
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return OT_ERROR_INVALID_ARGS;
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}
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err = sys_csrand_get(aOutput, aOutputLength);
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if (err != 0) {
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LOG_ERR("Failed to obtain entropy, err %d", err);
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return OT_ERROR_FAILED;
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}
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return OT_ERROR_NONE;
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}
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