void PlatformAlarmProcess(void) { uint32_t expires; bool fire = false; if (sIsRunning) { expires = sAlarmT0 + sAlarmDt; if (sAlarmT0 <= sCounter) { if (expires >= sAlarmT0 && expires <= sCounter) { fire = true; } } else { if (expires >= sAlarmT0 || expires <= sCounter) { fire = true; } } if (fire) { sIsRunning = false; otPlatAlarmFired(); } } }
void TestFuzz(uint32_t aSeconds) { // Set the radio capabilities to disable any Mac related timer dependencies g_testPlatRadioCaps = (otRadioCaps)(kRadioCapsAckTimeout | kRadioCapsTransmitRetries); // Set the platform function pointers g_TransmitRadioPacket.mPsdu = g_TransmitPsdu; g_testPlatRadioIsEnabled = testFuzzRadioIsEnabled; g_testPlatRadioEnable = testFuzzRadioEnable; g_testPlatRadioDisable = testFuzzRadioDisable; g_testPlatRadioReceive = testFuzzRadioReceive; g_testPlatRadioTransmit = testFuzzRadioTransmit; g_testPlatRadioGetTransmitBuffer = testFuzztRadioGetTransmitBuffer; // Initialize our timing variables uint32_t tStart = otPlatAlarmGetNow(); uint32_t tEnd = tStart + (aSeconds * 1000); otInstance *aInstance; #ifdef _WIN32 uint32_t seed = (uint32_t)time(NULL); srand(seed); Log("Initialized seed = 0x%X", seed); #endif #ifdef OPENTHREAD_MULTIPLE_INSTANCE size_t otInstanceBufferLength = 0; uint8_t *otInstanceBuffer = NULL; // Call to query the buffer size (void)otInstanceInit(NULL, &otInstanceBufferLength); // Call to allocate the buffer otInstanceBuffer = (uint8_t *)malloc(otInstanceBufferLength); VerifyOrQuit(otInstanceBuffer != NULL, "Failed to allocate otInstance"); memset(otInstanceBuffer, 0, otInstanceBufferLength); // Initialize Openthread with the buffer aInstance = otInstanceInit(otInstanceBuffer, &otInstanceBufferLength); #else aInstance = otInstanceInit(); #endif VerifyOrQuit(aInstance != NULL, "Failed to initialize otInstance"); // Start the Thread network otSetPanId(aInstance, (otPanId)0xFACE); otInterfaceUp(aInstance); otThreadStart(aInstance); uint32_t countRecv = 0; while (otPlatAlarmGetNow() < tEnd) { otProcessQueuedTasklets(aInstance); if (g_testPlatAlarmSet && otPlatAlarmGetNow() >= g_testPlatAlarmNext) { g_testPlatAlarmSet = false; otPlatAlarmFired(aInstance); } if (g_fRadioEnabled) { if (g_fTransmit) { g_fTransmit = false; otPlatRadioTransmitDone(aInstance, &g_TransmitRadioPacket, true, kThreadError_None); #ifdef DBG_FUZZ Log("<== transmit"); #endif } if (g_RecvChannel != 0) { uint8_t fuzzRecvBuff[128]; RadioPacket fuzzPacket; // Initialize the radio packet with a random length memset(&fuzzPacket, 0, sizeof(fuzzPacket)); fuzzPacket.mPsdu = fuzzRecvBuff; fuzzPacket.mChannel = g_RecvChannel; fuzzPacket.mLength = (uint8_t)(otPlatRandomGet() % 127); // Populate the length with random for (uint8_t i = 0; i < fuzzPacket.mLength; i++) { fuzzRecvBuff[i] = (uint8_t)otPlatRandomGet(); } // Clear the global flag g_RecvChannel = 0; // Indicate the receive complete otPlatRadioReceiveDone(aInstance, &fuzzPacket, kThreadError_None); countRecv++; #ifdef DBG_FUZZ Log("<== receive (%llu, %u bytes)", countRecv, fuzzPacket.mLength); #endif // Hack to get a receive poll immediately otSetChannel(aInstance, 11); } } } Log("%u packets received", countRecv); // Clean up the instance otInstanceFinalize(aInstance); #ifdef OPENTHREAD_MULTIPLE_INSTANCE free(otInstanceBuffer); #endif }