74     Error error = kErrorNone;  in Start()  local
77     VerifyOrExit(mVendorInfo != nullptr, error = kErrorFailed);  in Start()
86     LogWarnOnError(error, "start TCAT agent");  in Start()
87     return error;  in Start()
105     Error error = kErrorNone;  in SetTcatVendorInfo()  local
107     VerifyOrExit(aVendorInfo.IsValid(), error = kErrorInvalidArgs);  in SetTcatVendorInfo()
108     SuccessOrExit(error = mJoinerPskd.SetFrom(aVendorInfo.mPskdString));  in SetTcatVendorInfo()
112     return error;  in SetTcatVendorInfo()
118     Error  error;  in Connected()  local
120     VerifyOrExit(IsEnabled(), error = kErrorInvalidState);  in Connected()
123         error = aTls.GetThreadAttributeFromPeerCertificate(  in Connected()
125     VerifyOrExit(len == sizeof(mCommissionerAuthorizationField), error = kErrorParse);  in Connected()
126 …VerifyOrExit((mCommissionerAuthorizationField.mHeader & kCommissionerFlag) == 1, error = kErrorPar…  in Connected()
129     SuccessOrExit(error = aTls.GetThreadAttributeFromOwnCertificate(  in Connected()
131     VerifyOrExit(len == sizeof(mDeviceAuthorizationField), error = kErrorParse);  in Connected()
132     VerifyOrExit((mDeviceAuthorizationField.mHeader & kCommissionerFlag) == 0, error = kErrorParse);  in Connected()
170     return error;  in Connected()
368     Error    error = kErrorParse;  in HandleSingleTlv()  local
374     VerifyOrExit(IsConnected(), error = kErrorInvalidState);  in HandleSingleTlv()
375     SuccessOrExit(error = aIncomingMessage.Read(offset, tlv));  in HandleSingleTlv()
380         SuccessOrExit(error = aIncomingMessage.Read(offset, extTlv));  in HandleSingleTlv()
392         error = kErrorRejected;  in HandleSingleTlv()
399             error    = kErrorAbort;  in HandleSingleTlv()
404             error = HandleSetActiveOperationalDataset(aIncomingMessage, offset, length);  in HandleSingleTlv()
408             error = HandleStartThreadInterface();  in HandleSingleTlv()
412             error = otThreadSetEnabled(&GetInstance(), false);  in HandleSingleTlv()
420             error    = kErrorNone;  in HandleSingleTlv()
424             error = HandleDecomission();  in HandleSingleTlv()
428             error = HandlePing(aIncomingMessage, aOutgoingMessage, offset, length, response);  in HandleSingleTlv()
431             error = HandleGetNetworkName(aOutgoingMessage, response);  in HandleSingleTlv()
434             error = HandleGetDeviceId(aOutgoingMessage, response);  in HandleSingleTlv()
437             error = HandleGetExtPanId(aOutgoingMessage, response);  in HandleSingleTlv()
440             error = HandleGetProvisioningUrl(aOutgoingMessage, response);  in HandleSingleTlv()
443             error = HandlePresentPskdHash(aIncomingMessage, offset, length);  in HandleSingleTlv()
446             error = HandlePresentPskcHash(aIncomingMessage, offset, length);  in HandleSingleTlv()
449             error = HandlePresentInstallCodeHash(aIncomingMessage, offset, length);  in HandleSingleTlv()
452             error = HandleRequestRandomNumberChallenge(aOutgoingMessage, response);  in HandleSingleTlv()
455 …       error = HandleRequestPskdHash(aIncomingMessage, aOutgoingMessage, offset, length, response);  in HandleSingleTlv()
458             error = kErrorInvalidCommand;  in HandleSingleTlv()
465         switch (error)  in HandleSingleTlv()
500         SuccessOrExit(error = ot::Tlv::Append<ResponseWithStatusTlv>(aOutgoingMessage, statusCode));  in HandleSingleTlv()
504     return error;  in HandleSingleTlv()
511     Error       error;  in HandleSetActiveOperationalDataset()  local
514     SuccessOrExit(error = dataset.SetFrom(aIncomingMessage, offsetRange));  in HandleSetActiveOperationalDataset()
515     SuccessOrExit(error = dataset.ValidateTlvs());  in HandleSetActiveOperationalDataset()
520         error = kErrorRejected;  in HandleSetActiveOperationalDataset()
527     return error;  in HandleSetActiveOperationalDataset()
532     Error error = kErrorNone;  in HandleDecomission()  local
538     error = Get<Instance>().ErasePersistentInfo();  in HandleDecomission()
548     return error;  in HandleDecomission()
557     Error           error = kErrorNone;  in HandlePing()  local
561     VerifyOrExit(aLength <= kPingPayloadMaxLength, error = kErrorParse);  in HandlePing()
566         SuccessOrExit(error = aOutgoingMessage.Append(extTlv));  in HandlePing()
572         SuccessOrExit(error = aOutgoingMessage.Append(tlv));  in HandlePing()
575 …SuccessOrExit(error = aOutgoingMessage.AppendBytesFromMessage(aIncomingMessage, aOffset, aLength));  in HandlePing()
579     return error;  in HandlePing()
584     Error             error    = kErrorNone;  in HandleGetNetworkName()  local
587     VerifyOrExit(Get<ActiveDatasetManager>().IsCommissioned(), error = kErrorInvalidState);  in HandleGetNetworkName()
589     VerifyOrExit(nameData.GetLength() > 0, error = kErrorInvalidState);  in HandleGetNetworkName()
593 …error = Tlv::AppendTlv(aOutgoingMessage, kTlvResponseWithPayload, nameData.GetBuffer(), nameData.G…  in HandleGetNetworkName()
597     return error;  in HandleGetNetworkName()
605     Error           error = kErrorNone;  in HandleGetDeviceId()  local
621 …SuccessOrExit(error = Tlv::AppendTlv(aOutgoingMessage, kTlvResponseWithPayload, deviceId, length));  in HandleGetDeviceId()
626     return error;  in HandleGetDeviceId()
631     Error error;  in HandleGetExtPanId()  local
633     VerifyOrExit(Get<ActiveDatasetManager>().IsCommissioned(), error = kErrorInvalidState);  in HandleGetExtPanId()
635     SuccessOrExit(error = Tlv::AppendTlv(aOutgoingMessage, kTlvResponseWithPayload,  in HandleGetExtPanId()
640     return error;  in HandleGetExtPanId()
645     Error    error = kErrorNone;  in HandleGetProvisioningUrl()  local
648     VerifyOrExit(mVendorInfo->mProvisioningUrl != nullptr, error = kErrorInvalidState);  in HandleGetProvisioningUrl()
651     VerifyOrExit(length > 0 && length <= Tlv::kBaseTlvMaxLength, error = kErrorInvalidState);  in HandleGetProvisioningUrl()
653     SuccessOrExit(error =  in HandleGetProvisioningUrl()
658     return error;  in HandleGetProvisioningUrl()
663     Error error = kErrorNone;  in HandlePresentPskdHash()  local
665     VerifyOrExit(mVendorInfo->mPskdString != nullptr, error = kErrorSecurity);  in HandlePresentPskdHash()
667     SuccessOrExit(error = VerifyHash(aIncomingMessage, aOffset, aLength, mVendorInfo->mPskdString,  in HandlePresentPskdHash()
672     return error;  in HandlePresentPskdHash()
677     Error         error = kErrorNone;  in HandlePresentPskcHash()  local
681 … VerifyOrExit(Get<ActiveDatasetManager>().Read(datasetInfo) == kErrorNone, error = kErrorSecurity);  in HandlePresentPskcHash()
682     VerifyOrExit(datasetInfo.IsPresent<Dataset::kPskc>(), error = kErrorSecurity);  in HandlePresentPskcHash()
685     SuccessOrExit(error = VerifyHash(aIncomingMessage, aOffset, aLength, pskc.m8, Pskc::kSize));  in HandlePresentPskcHash()
689     return error;  in HandlePresentPskcHash()
694     Error error = kErrorNone;  in HandlePresentInstallCodeHash()  local
696     VerifyOrExit(mVendorInfo->mInstallCode != nullptr, error = kErrorSecurity);  in HandlePresentInstallCodeHash()
698     SuccessOrExit(error = VerifyHash(aIncomingMessage, aOffset, aLength, mVendorInfo->mInstallCode,  in HandlePresentInstallCodeHash()
703     return error;  in HandlePresentInstallCodeHash()
708     Error error = kErrorNone;  in HandleRequestRandomNumberChallenge()  local
710     SuccessOrExit(error = Random::Crypto::Fill(mRandomChallenge));  in HandleRequestRandomNumberChallenge()
713 …error = Tlv::AppendTlv(aOutgoingMessage, kTlvResponseWithPayload, &mRandomChallenge, sizeof(mRando…  in HandleRequestRandomNumberChallenge()
716     return error;  in HandleRequestRandomNumberChallenge()
725     Error                    error             = kErrorNone;  in HandleRequestPskdHash()  local
729     VerifyOrExit(StringLength(mVendorInfo->mPskdString, kMaxPskdLength) != 0, error = kErrorFailed);  in HandleRequestPskdHash()
730     VerifyOrExit(aLength == sizeof(providedChallenge), error = kErrorParse);  in HandleRequestPskdHash()
732     SuccessOrExit(error = aIncomingMessage.Read(aOffset, &providedChallenge, aLength));  in HandleRequestPskdHash()
737     SuccessOrExit(error = Tlv::AppendTlv(aOutgoingMessage, kTlvResponseWithPayload, hash.GetBytes(),  in HandleRequestPskdHash()
742     return error;  in HandleRequestPskdHash()
751     Error                    error = kErrorNone;  in VerifyHash()  local
754     VerifyOrExit(aLength == Crypto::HmacSha256::Hash::kSize, error = kErrorSecurity);  in VerifyHash()
755     VerifyOrExit(mRandomChallenge != 0, error = kErrorSecurity);  in VerifyHash()
759     VerifyOrExit(aIncomingMessage.Compare(aOffset, hash), error = kErrorSecurity);  in VerifyHash()
762     return error;  in VerifyHash()
781     Error         error;  in HandleStartThreadInterface()  local
784 …VerifyOrExit(Get<ActiveDatasetManager>().Read(datasetInfo) == kErrorNone, error = kErrorInvalidSta…  in HandleStartThreadInterface()
785     VerifyOrExit(datasetInfo.IsPresent<Dataset::kNetworkKey>(), error = kErrorInvalidState);  in HandleStartThreadInterface()
788     VerifyOrExit(!Get<Mac::LinkRaw>().IsEnabled(), error = kErrorInvalidState);  in HandleStartThreadInterface()
792     error = Get<Mle::MleRouter>().Start();  in HandleStartThreadInterface()
795     return error;  in HandleStartThreadInterface()
811     Error                 error = kErrorNone;  in GetAdvertisementData()  local
815 …  VerifyOrExit(mVendorInfo != nullptr && aAdvertisementData != nullptr, error = kErrorInvalidArgs);  in GetAdvertisementData()
883     return error;  in GetAdvertisementData()