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[posix] remove sanitizer code in entropy (#12196)

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The sanitizer code won't be used on posix platform.
This commit is contained in:
Li Cao
2025-12-04 19:16:16 -08:00
committed by GitHub
parent d7fe525415
commit 10c882d27c
1 changed files with 1 additions and 66 deletions
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src/posix/platform/entropy.cpp
+1 -66
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@@ -42,58 +42,15 @@
#include "common/code_utils.hpp"
#ifndef __SANITIZE_ADDRESS__
#define __SANITIZE_ADDRESS__ 0
#endif
#if __SANITIZE_ADDRESS__ != 0
static uint32_t sState = 1;
#endif // __SANITIZE_ADDRESS__
void platformRandomInit(void)
{
#if __SANITIZE_ADDRESS__ != 0
// Multiplying gNodeId assures that no two nodes gets the same seed within an hour.
sState = (uint32_t)time(nullptr) + (3600 * gNodeId);
#endif // __SANITIZE_ADDRESS__
// Do nothing.
}
#if __SANITIZE_ADDRESS__ != 0
uint32_t randomUint32Get(void)
{
uint32_t mlcg, p, q;
uint64_t tmpstate;
tmpstate = (uint64_t)33614 * (uint64_t)sState;
q = tmpstate & 0xffffffff;
q = q >> 1;
p = tmpstate >> 32;
mlcg = p + q;
if (mlcg & 0x80000000)
{
mlcg &= 0x7fffffff;
mlcg++;
}
sState = mlcg;
return mlcg;
}
#endif // __SANITIZE_ADDRESS__
otError otPlatEntropyGet(uint8_t *aOutput, uint16_t aOutputLength)
{
otError error = OT_ERROR_NONE;
#if __SANITIZE_ADDRESS__ == 0
FILE *file = nullptr;
size_t readLength;
@@ -111,27 +68,5 @@ exit:
{
fclose(file);
}
#else // __SANITIZE_ADDRESS__
/*
* THE IMPLEMENTATION BELOW IS NOT COMPLIANT WITH THE THREAD SPECIFICATION.
*
* Address Sanitizer triggers test failures when reading random
* values from /dev/urandom. The pseudo-random number generator
* implementation below is only used to enable continuous
* integration checks with Address Sanitizer enabled.
*/
VerifyOrExit(aOutput && aOutputLength, error = OT_ERROR_INVALID_ARGS);
for (uint16_t length = 0; length < aOutputLength; length++)
{
aOutput[length] = (uint8_t)randomUint32Get();
}
exit:
#endif // __SANITIZE_ADDRESS__
return error;
}