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Code Issues Releases Wiki Activity

Fail hard if no random bytes available for encryption (#3067)

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This commit is contained in:
Oxan van Leeuwen
2022-01-18 02:29:57 +01:00
committed by GitHub
parent db21731b14
commit 737188ae50
3 changed files with 11 additions and 6 deletions
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8
esphome/components/api/api_frame_helper.cpp
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@@ -1,6 +1,7 @@
#include "api_frame_helper.h"
#include "esphome/core/log.h"
#include "esphome/core/hal.h"
#include "esphome/core/helpers.h"
#include "proto.h"
#include <cstring>
@@ -721,7 +722,12 @@ APIError APINoiseFrameHelper::shutdown(int how) {
}
extern "C" {
// declare how noise generates random bytes (here with a good HWRNG based on the RF system)
void noise_rand_bytes(void *output, size_t len) { esphome::random_bytes(reinterpret_cast<uint8_t *>(output), len); }
void noise_rand_bytes(void *output, size_t len) {
if (!esphome::random_bytes(reinterpret_cast<uint8_t *>(output), len)) {
ESP_LOGE(TAG, "Failed to acquire random bytes, rebooting!");
arch_restart();
}
}
}
#endif // USE_API_NOISE