mirror of
https://github.com/espressif/openthread.git
synced 2026-10-10 09:47:35 +00:00
Yakun Xu
90224407f0
When a router-eligible Child transitions to Router (e.g. during TestCoapObserve when Leader notifies an upgraded child at its former child RLOC16), OpenThread calls otPlatRadioSetAlternateShortAddress(), which stores the previous short address in mRadioContext.mAlternateShortAddress. Fix alternate short address handling consistently across Nexus, simulation radio, and MAC frame utils: - Advertise OT_RADIO_CAPS_ALT_SHORT_ADDR in both Nexus otPlatRadioGetCaps() and simulation gRadioCaps. - Initialize mCslShortAddress, mShortAddress, and mAlternateShortAddress in otRadioContext to OT_RADIO_INVALID_SHORT_ADDR in both Nexus::Radio::Reset() and simulation platformRadioInit(). - Drop duplicate Radio::mShortAddress and Radio::mExtAddress from Nexus::Radio and use mRadioContext consistently. - Simplify Nexus::Radio::Radio(void) to call Reset(). - Guard against Mac::kShortAddrInvalid and match both short addresses in Nexus::Radio::Matches() and otMacFrameDoesAddrMatchAny().
598 lines
20 KiB
C++
598 lines
20 KiB
C++
/*
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* Copyright (c) 2024, The OpenThread Authors.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the copyright holder nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <openthread/platform/radio.h>
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#include "nexus_core.hpp"
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#include "nexus_node.hpp"
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namespace ot {
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namespace Nexus {
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//---------------------------------------------------------------------------------------------------------------------
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// otPlatRadio APIs
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extern "C" {
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otRadioCaps otPlatRadioGetCaps(otInstance *aInstance)
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{
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OT_UNUSED_VARIABLE(aInstance);
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return OT_RADIO_CAPS_TRANSMIT_SEC | OT_RADIO_CAPS_ALT_SHORT_ADDR;
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}
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int8_t otPlatRadioGetReceiveSensitivity(otInstance *aInstance)
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{
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OT_UNUSED_VARIABLE(aInstance);
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return Radio::kRadioSensitivity;
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}
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void otPlatRadioGetIeeeEui64(otInstance *aInstance, uint8_t *aIeeeEui64)
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{
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uint32_t nodeId = AsNode(aInstance).GetInstance().GetId();
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memset(aIeeeEui64, 0, sizeof(Mac::ExtAddress));
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aIeeeEui64[6] = (nodeId >> 8) & 0xff;
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aIeeeEui64[7] = nodeId & 0xff;
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}
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void otPlatRadioSetPanId(otInstance *aInstance, otPanId aPanId) { AsNode(aInstance).mRadio.mPanId = aPanId; }
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void otPlatRadioSetExtendedAddress(otInstance *aInstance, const otExtAddress *aExtAddress)
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{
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AsCoreType(&AsNode(aInstance).mRadio.mRadioContext.mExtAddress)
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.Set(aExtAddress->m8, Mac::ExtAddress::kReverseByteOrder);
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}
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void otPlatRadioSetShortAddress(otInstance *aInstance, otShortAddress aShortAddress)
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{
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AsNode(aInstance).mRadio.mRadioContext.mShortAddress = aShortAddress;
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}
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void otPlatRadioSetAlternateShortAddress(otInstance *aInstance, otShortAddress aShortAddress)
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{
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AsNode(aInstance).mRadio.mRadioContext.mAlternateShortAddress = aShortAddress;
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}
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bool otPlatRadioGetPromiscuous(otInstance *aInstance) { return AsNode(aInstance).mRadio.mPromiscuous; }
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void otPlatRadioSetPromiscuous(otInstance *aInstance, bool aEnable) { AsNode(aInstance).mRadio.mPromiscuous = aEnable; }
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otRadioState otPlatRadioGetState(otInstance *aInstance) { return AsNode(aInstance).mRadio.mState; }
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otError otPlatRadioEnable(otInstance *aInstance)
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{
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Error error = kErrorNone;
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Radio &radio = AsNode(aInstance).mRadio;
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VerifyOrExit(radio.mState == Radio::kStateDisabled, error = kErrorFailed);
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radio.mState = Radio::kStateSleep;
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exit:
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return error;
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}
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otError otPlatRadioDisable(otInstance *aInstance)
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{
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AsNode(aInstance).mRadio.mState = Radio::kStateDisabled;
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return kErrorNone;
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}
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bool otPlatRadioIsEnabled(otInstance *aInstance) { return AsNode(aInstance).mRadio.mState != Radio::kStateDisabled; }
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otError otPlatRadioSleep(otInstance *aInstance)
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{
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Error error = kErrorNone;
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Radio &radio = AsNode(aInstance).mRadio;
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VerifyOrExit(radio.mState != Radio::kStateDisabled, error = kErrorInvalidState);
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VerifyOrExit(radio.mState != Radio::kStateTransmit, error = kErrorBusy);
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radio.mState = Radio::kStateSleep;
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exit:
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return error;
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}
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otError otPlatRadioReceive(otInstance *aInstance, uint8_t aChannel)
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{
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Error error = kErrorNone;
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Radio &radio = AsNode(aInstance).mRadio;
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VerifyOrExit(radio.mState != Radio::kStateDisabled, error = kErrorInvalidState);
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radio.mState = Radio::kStateReceive;
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radio.mChannel = aChannel;
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exit:
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return error;
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}
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otRadioFrame *otPlatRadioGetTransmitBuffer(otInstance *aInstance) { return &AsNode(aInstance).mRadio.mTxFrame; }
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otError otPlatRadioTransmit(otInstance *aInstance, otRadioFrame *aFrame)
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{
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OT_UNUSED_VARIABLE(aFrame);
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Error error = kErrorNone;
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Radio &radio = AsNode(aInstance).mRadio;
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VerifyOrExit(radio.mState == Radio::kStateReceive, error = kErrorInvalidState);
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OT_ASSERT(aFrame == &AsNode(aInstance).mRadio.mTxFrame);
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radio.mState = Radio::kStateTransmit;
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Core::Get().MarkPendingAction();
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exit:
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return error;
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}
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otRadioTime64 otPlatRadioGetNow(otInstance *aInstance)
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{
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OT_UNUSED_VARIABLE(aInstance);
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return Core::Get().GetNowMicro64();
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}
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int8_t otPlatRadioGetRssi(otInstance *aInstance)
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{
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OT_UNUSED_VARIABLE(aInstance);
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return Radio::kRadioSensitivity;
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}
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void otPlatRadioEnableSrcMatch(otInstance *aInstance, bool aEnable)
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{
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AsNode(aInstance).mRadio.mSrcMatchEnabled = aEnable;
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}
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otError otPlatRadioAddSrcMatchShortEntry(otInstance *aInstance, otShortAddress aShortAddress)
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{
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Error error = kErrorNone;
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Radio &radio = AsNode(aInstance).mRadio;
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VerifyOrExit(!radio.mSrcMatchShortEntries.Contains(aShortAddress));
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error = radio.mSrcMatchShortEntries.PushBack(aShortAddress);
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exit:
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return error;
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}
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otError otPlatRadioAddSrcMatchExtEntry(otInstance *aInstance, const otExtAddress *aExtAddress)
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{
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Error error = kErrorNone;
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Radio &radio = AsNode(aInstance).mRadio;
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Mac::ExtAddress extAddress;
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extAddress.Set(aExtAddress->m8, Mac::ExtAddress::kReverseByteOrder);
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VerifyOrExit(!radio.mSrcMatchExtEntries.Contains(extAddress));
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error = radio.mSrcMatchExtEntries.PushBack(extAddress);
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exit:
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return error;
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}
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otError otPlatRadioClearSrcMatchShortEntry(otInstance *aInstance, otShortAddress aShortAddress)
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{
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Error error = kErrorNone;
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Radio &radio = AsNode(aInstance).mRadio;
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uint16_t *entry;
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entry = radio.mSrcMatchShortEntries.Find(aShortAddress);
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VerifyOrExit(entry != nullptr, error = kErrorNoAddress);
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radio.mSrcMatchShortEntries.Remove(*entry);
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exit:
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return error;
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}
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otError otPlatRadioClearSrcMatchExtEntry(otInstance *aInstance, const otExtAddress *aExtAddress)
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{
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Error error = kErrorNone;
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Radio &radio = AsNode(aInstance).mRadio;
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Mac::ExtAddress extAddress;
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Mac::ExtAddress *entry;
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extAddress.Set(aExtAddress->m8, Mac::ExtAddress::kReverseByteOrder);
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entry = radio.mSrcMatchExtEntries.Find(extAddress);
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VerifyOrExit(entry != nullptr, error = kErrorNoAddress);
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radio.mSrcMatchExtEntries.Remove(*entry);
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exit:
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return error;
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}
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void otPlatRadioClearSrcMatchShortEntries(otInstance *aInstance)
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{
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AsNode(aInstance).mRadio.mSrcMatchShortEntries.Clear();
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}
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void otPlatRadioClearSrcMatchExtEntries(otInstance *aInstance) { AsNode(aInstance).mRadio.mSrcMatchExtEntries.Clear(); }
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void otPlatRadioSetMacKey(otInstance *aInstance,
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uint8_t aKeyIdMode,
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uint8_t aKeyIndex,
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const otMacKeyMaterial *aPrevKey,
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const otMacKeyMaterial *aCurrKey,
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const otMacKeyMaterial *aNextKey,
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otRadioKeyType aKeyType)
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{
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Radio &radio = AsNode(aInstance).mRadio;
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OT_UNUSED_VARIABLE(aKeyIdMode);
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radio.mRadioContext.mKeyId = aKeyIndex;
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radio.mRadioContext.mKeyType = aKeyType;
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if (!radio.mMacFrameCounterReset)
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{
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radio.mRadioContext.mPrevMacFrameCounter = radio.mRadioContext.mMacFrameCounter;
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radio.mRadioContext.mMacFrameCounter = 0;
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}
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radio.mMacFrameCounterReset = false;
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memcpy(&radio.mRadioContext.mPrevKey, aPrevKey, sizeof(otMacKeyMaterial));
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memcpy(&radio.mRadioContext.mCurrKey, aCurrKey, sizeof(otMacKeyMaterial));
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memcpy(&radio.mRadioContext.mNextKey, aNextKey, sizeof(otMacKeyMaterial));
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}
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void otPlatRadioSetMacFrameCounter(otInstance *aInstance, uint32_t aMacFrameCounter)
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{
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Radio &radio = AsNode(aInstance).mRadio;
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if (aMacFrameCounter == 0)
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{
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radio.mRadioContext.mPrevMacFrameCounter = radio.mRadioContext.mMacFrameCounter;
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radio.mMacFrameCounterReset = true;
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}
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radio.mRadioContext.mMacFrameCounter = aMacFrameCounter;
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}
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// Not supported
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otError otPlatRadioEnergyScan(otInstance *, uint8_t, uint16_t) { return kErrorNotImplemented; }
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otError otPlatRadioGetTransmitPower(otInstance *, int8_t *) { return kErrorNotImplemented; }
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otError otPlatRadioSetTransmitPower(otInstance *, int8_t) { return kErrorNotImplemented; }
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otError otPlatRadioGetCcaEnergyDetectThreshold(otInstance *, int8_t *) { return kErrorNotImplemented; }
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otError otPlatRadioSetCcaEnergyDetectThreshold(otInstance *, int8_t) { return kErrorNotImplemented; }
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otError otPlatRadioGetFemLnaGain(otInstance *, int8_t *) { return kErrorNotImplemented; }
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otError otPlatRadioSetFemLnaGain(otInstance *, int8_t) { return kErrorNotImplemented; }
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bool otPlatRadioIsCoexEnabled(otInstance *) { return false; }
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otError otPlatRadioSetCoexEnabled(otInstance *, bool) { return kErrorNotImplemented; }
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otError otPlatRadioGetCoexMetrics(otInstance *, otRadioCoexMetrics *) { return kErrorNotImplemented; }
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otError otPlatRadioEnableCsl(otInstance *aInstance,
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uint32_t aCslPeriod,
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otShortAddress aShortAddr,
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const otExtAddress *aExtAddr)
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{
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Error error = kErrorNone;
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Radio &radio = AsNode(aInstance).mRadio;
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if (aCslPeriod > 0)
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{
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VerifyOrExit((aShortAddr != OT_RADIO_BROADCAST_SHORT_ADDR) && (aShortAddr != OT_RADIO_INVALID_SHORT_ADDR),
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error = kErrorFailed);
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VerifyOrExit(aExtAddr != nullptr, error = kErrorFailed);
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}
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radio.mRadioContext.mCslPeriod = static_cast<uint16_t>(aCslPeriod);
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radio.mRadioContext.mCslShortAddress = aShortAddr;
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if (aExtAddr != nullptr)
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{
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AsCoreType(&radio.mRadioContext.mCslExtAddress).Set(aExtAddr->m8, Mac::ExtAddress::kReverseByteOrder);
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}
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else
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{
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AsCoreType(&radio.mRadioContext.mCslExtAddress).Clear();
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}
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exit:
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return error;
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}
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otError otPlatRadioResetCsl(otInstance *aInstance)
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{
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AsNode(aInstance).mRadio.mRadioContext.mCslPeriod = 0;
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return kErrorNone;
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}
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void otPlatRadioUpdateCslSampleTime(otInstance *aInstance, otRadioTime32 aCslSampleTime)
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{
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AsNode(aInstance).mRadio.mRadioContext.mCslSampleTime = aCslSampleTime;
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}
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uint8_t otPlatRadioGetCslAccuracy(otInstance *aInstance)
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{
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OT_UNUSED_VARIABLE(aInstance);
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return 0;
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}
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otError otPlatRadioSetChannelTargetPower(otInstance *, uint8_t, int16_t) { return kErrorNotImplemented; }
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otError otPlatRadioClearCalibratedPowers(otInstance *) { return kErrorNotImplemented; }
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otError otPlatRadioAddCalibratedPower(otInstance *, uint8_t, int16_t, const uint8_t *, uint16_t)
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{
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return kErrorNotImplemented;
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}
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otError otPlatRadioConfigureEnhAckProbing(otInstance *aInstance,
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otLinkMetrics aLinkMetrics,
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otShortAddress aShortAddress,
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const otExtAddress *aExtAddress)
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{
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return AsNode(aInstance).mRadio.ConfigureEnhAckProbing(aShortAddress, AsCoreTypePtr(aExtAddress), aLinkMetrics);
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}
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} // extern "C"
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//---------------------------------------------------------------------------------------------------------------------
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// Radio
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Radio::Radio(void) { Reset(); }
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void Radio::Reset(void)
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{
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mState = kStateDisabled;
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mPromiscuous = false;
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mSrcMatchEnabled = false;
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mMacFrameCounterReset = false;
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mChannel = 0;
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mPanId = 0;
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mSrcMatchShortEntries.Clear();
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mSrcMatchExtEntries.Clear();
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mLinkMetricsEntries.Clear();
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ClearAllBytes(mRadioContext);
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mRadioContext.mCslShortAddress = Mac::kShortAddrInvalid;
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mRadioContext.mShortAddress = Mac::kShortAddrInvalid;
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mRadioContext.mAlternateShortAddress = Mac::kShortAddrInvalid;
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mTxFrame.mInfo.mTxInfo.mIeInfo = &mTxIeInfo;
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}
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Error Radio::ConfigureEnhAckProbing(Mac::ShortAddress aShortAddress,
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const Mac::ExtAddress *aExtAddress,
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otLinkMetrics aMetrics)
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{
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Error error = kErrorNone;
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LinkMetricsInfo *dataInfo = mLinkMetricsEntries.FindMatching(aShortAddress);
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if (!aMetrics.mPduCount && !aMetrics.mLqi && !aMetrics.mLinkMargin && !aMetrics.mRssi) // Remove entry
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{
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VerifyOrExit(dataInfo != nullptr, error = kErrorNotFound);
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mLinkMetricsEntries.Remove(*dataInfo);
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}
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else
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{
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VerifyOrExit(aExtAddress != nullptr, error = kErrorInvalidArgs);
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if (dataInfo == nullptr)
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{
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dataInfo = mLinkMetricsEntries.PushBack();
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VerifyOrExit(dataInfo != nullptr, error = kErrorNoBufs);
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}
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dataInfo->mShortAddress = aShortAddress;
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dataInfo->mExtAddress = *aExtAddress;
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dataInfo->mMetrics = aMetrics;
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}
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exit:
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return error;
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}
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uint8_t Radio::GenerateEnhAckProbingData(const Mac::Address &aAddress, uint8_t aLqi, int8_t aRssi, uint8_t *aData) const
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{
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uint8_t bytes = 0;
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const LinkMetricsInfo *dataInfo = nullptr;
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if (aAddress.IsShort())
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{
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dataInfo = mLinkMetricsEntries.FindMatching(aAddress.GetShort());
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}
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else if (aAddress.IsExtended())
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{
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dataInfo = mLinkMetricsEntries.FindMatching(aAddress.GetExtended());
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}
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VerifyOrExit(dataInfo != nullptr);
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if (dataInfo->mMetrics.mLqi)
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{
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aData[bytes++] = aLqi;
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}
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if (dataInfo->mMetrics.mLinkMargin)
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{
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uint8_t linkMargin = ComputeLinkMargin(kRadioSensitivity, aRssi);
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// Linear scale Link Margin from [0, 130] to [0, 255]
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if (linkMargin > kLinkMetricsScale)
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{
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linkMargin = kLinkMetricsScale;
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}
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aData[bytes++] = static_cast<uint8_t>(static_cast<uint16_t>(linkMargin) * kLinkMetricsMax / kLinkMetricsScale);
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}
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if (bytes < kEnhAckProbingDataMaxLen && dataInfo->mMetrics.mRssi)
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{
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int16_t rssi = aRssi;
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// Linear scale RSSI from [-130, 0] to [0, 255]
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if (rssi > 0)
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{
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rssi = 0;
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}
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else if (rssi < -static_cast<int16_t>(kRssiOffset))
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{
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rssi = -static_cast<int16_t>(kRssiOffset);
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}
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aData[bytes++] =
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static_cast<uint8_t>((static_cast<uint16_t>(rssi + kRssiOffset)) * kLinkMetricsMax / kLinkMetricsScale);
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}
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exit:
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return bytes;
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}
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bool Radio::CanReceiveOnChannel(uint8_t aChannel) const
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{
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bool canRx = false;
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switch (mState)
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{
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case kStateReceive:
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case kStateTransmit:
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break;
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default:
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ExitNow();
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}
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VerifyOrExit(mChannel == aChannel);
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canRx = true;
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exit:
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return canRx;
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}
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bool Radio::Matches(const Mac::Address &aAddress, Mac::PanId aPanId) const
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{
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bool matches = false;
|
|
|
|
if (aAddress.IsShort())
|
|
{
|
|
Mac::ShortAddress shortAddr = aAddress.GetShort();
|
|
|
|
VerifyOrExit(shortAddr != Mac::kShortAddrInvalid);
|
|
VerifyOrExit(aAddress.IsBroadcast() || (shortAddr == mRadioContext.mShortAddress) ||
|
|
(shortAddr == mRadioContext.mAlternateShortAddress));
|
|
}
|
|
else if (aAddress.IsExtended())
|
|
{
|
|
VerifyOrExit(aAddress.GetExtended() == AsCoreType(&mRadioContext.mExtAddress));
|
|
}
|
|
|
|
if ((aPanId != Mac::kPanIdBroadcast) && (mPanId != Mac::kPanIdBroadcast))
|
|
{
|
|
VerifyOrExit(mPanId == aPanId);
|
|
}
|
|
|
|
matches = true;
|
|
|
|
exit:
|
|
return matches;
|
|
}
|
|
|
|
bool Radio::HasFramePendingFor(const Mac::Address &aAddress) const
|
|
{
|
|
bool hasPending = false;
|
|
|
|
if (!mSrcMatchEnabled)
|
|
{
|
|
// Always mark frame pending when `SrcMatch` is disabled.
|
|
hasPending = true;
|
|
ExitNow();
|
|
}
|
|
|
|
if (aAddress.IsShort())
|
|
{
|
|
hasPending = mSrcMatchShortEntries.Contains(aAddress.GetShort());
|
|
}
|
|
else if (aAddress.IsExtended())
|
|
{
|
|
hasPending = mSrcMatchExtEntries.Contains(aAddress.GetExtended());
|
|
}
|
|
|
|
exit:
|
|
return hasPending;
|
|
}
|
|
|
|
//---------------------------------------------------------------------------------------------------------------------
|
|
// Radio::Frame
|
|
|
|
Radio::Frame::Frame(void)
|
|
{
|
|
ClearAllBytes(*this);
|
|
mPsdu = &mPsduBuffer[0];
|
|
}
|
|
|
|
Radio::Frame::Frame(const Frame &aFrame)
|
|
{
|
|
ClearAllBytes(*this);
|
|
mPsdu = &mPsduBuffer[0];
|
|
|
|
mLength = aFrame.mLength;
|
|
mChannel = aFrame.mChannel;
|
|
mRadioType = aFrame.mRadioType;
|
|
memcpy(mPsdu, aFrame.mPsdu, mLength);
|
|
}
|
|
|
|
void Radio::Frame::UpdateFcs(void)
|
|
{
|
|
static const uint16_t kFcsTable[256] = {
|
|
0x0000, 0x1189, 0x2312, 0x329b, 0x4624, 0x57ad, 0x6536, 0x74bf, 0x8c48, 0x9dc1, 0xaf5a, 0xbed3, 0xca6c, 0xdbe5,
|
|
0xe97e, 0xf8f7, 0x1081, 0x0108, 0x3393, 0x221a, 0x56a5, 0x472c, 0x75b7, 0x643e, 0x9cc9, 0x8d40, 0xbfdb, 0xae52,
|
|
0xdaed, 0xcb64, 0xf9ff, 0xe876, 0x2102, 0x308b, 0x0210, 0x1399, 0x6726, 0x76af, 0x4434, 0x55bd, 0xad4a, 0xbcc3,
|
|
0x8e58, 0x9fd1, 0xeb6e, 0xfae7, 0xc87c, 0xd9f5, 0x3183, 0x200a, 0x1291, 0x0318, 0x77a7, 0x662e, 0x54b5, 0x453c,
|
|
0xbdcb, 0xac42, 0x9ed9, 0x8f50, 0xfbef, 0xea66, 0xd8fd, 0xc974, 0x4204, 0x538d, 0x6116, 0x709f, 0x0420, 0x15a9,
|
|
0x2732, 0x36bb, 0xce4c, 0xdfc5, 0xed5e, 0xfcd7, 0x8868, 0x99e1, 0xab7a, 0xbaf3, 0x5285, 0x430c, 0x7197, 0x601e,
|
|
0x14a1, 0x0528, 0x37b3, 0x263a, 0xdecd, 0xcf44, 0xfddf, 0xec56, 0x98e9, 0x8960, 0xbbfb, 0xaa72, 0x6306, 0x728f,
|
|
0x4014, 0x519d, 0x2522, 0x34ab, 0x0630, 0x17b9, 0xef4e, 0xfec7, 0xcc5c, 0xddd5, 0xa96a, 0xb8e3, 0x8a78, 0x9bf1,
|
|
0x7387, 0x620e, 0x5095, 0x411c, 0x35a3, 0x242a, 0x16b1, 0x0738, 0xffcf, 0xee46, 0xdcdd, 0xcd54, 0xb9eb, 0xa862,
|
|
0x9af9, 0x8b70, 0x8408, 0x9581, 0xa71a, 0xb693, 0xc22c, 0xd3a5, 0xe13e, 0xf0b7, 0x0840, 0x19c9, 0x2b52, 0x3adb,
|
|
0x4e64, 0x5fed, 0x6d76, 0x7cff, 0x9489, 0x8500, 0xb79b, 0xa612, 0xd2ad, 0xc324, 0xf1bf, 0xe036, 0x18c1, 0x0948,
|
|
0x3bd3, 0x2a5a, 0x5ee5, 0x4f6c, 0x7df7, 0x6c7e, 0xa50a, 0xb483, 0x8618, 0x9791, 0xe32e, 0xf2a7, 0xc03c, 0xd1b5,
|
|
0x2942, 0x38cb, 0x0a50, 0x1bd9, 0x6f66, 0x7eef, 0x4c74, 0x5dfd, 0xb58b, 0xa402, 0x9699, 0x8710, 0xf3af, 0xe226,
|
|
0xd0bd, 0xc134, 0x39c3, 0x284a, 0x1ad1, 0x0b58, 0x7fe7, 0x6e6e, 0x5cf5, 0x4d7c, 0xc60c, 0xd785, 0xe51e, 0xf497,
|
|
0x8028, 0x91a1, 0xa33a, 0xb2b3, 0x4a44, 0x5bcd, 0x6956, 0x78df, 0x0c60, 0x1de9, 0x2f72, 0x3efb, 0xd68d, 0xc704,
|
|
0xf59f, 0xe416, 0x90a9, 0x8120, 0xb3bb, 0xa232, 0x5ac5, 0x4b4c, 0x79d7, 0x685e, 0x1ce1, 0x0d68, 0x3ff3, 0x2e7a,
|
|
0xe70e, 0xf687, 0xc41c, 0xd595, 0xa12a, 0xb0a3, 0x8238, 0x93b1, 0x6b46, 0x7acf, 0x4854, 0x59dd, 0x2d62, 0x3ceb,
|
|
0x0e70, 0x1ff9, 0xf78f, 0xe606, 0xd49d, 0xc514, 0xb1ab, 0xa022, 0x92b9, 0x8330, 0x7bc7, 0x6a4e, 0x58d5, 0x495c,
|
|
0x3de3, 0x2c6a, 0x1ef1, 0x0f78};
|
|
uint16_t fcs = 0;
|
|
|
|
VerifyOrExit(mLength >= k154FcsSize);
|
|
|
|
for (uint16_t i = 0; i < mLength - k154FcsSize; i++)
|
|
{
|
|
fcs = (fcs >> 8) ^ kFcsTable[(fcs ^ mPsdu[i]) & 0xff];
|
|
}
|
|
|
|
LittleEndian::WriteUint16(fcs, &mPsdu[mLength - k154FcsSize]);
|
|
|
|
exit:
|
|
return;
|
|
}
|
|
|
|
} // namespace Nexus
|
|
} // namespace ot
|