| /* |
| * Copyright (c) 2016, The OpenThread Authors. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. Neither the name of the copyright holder nor the |
| * names of its contributors may be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
| * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| * POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| /** |
| * @file |
| * This file implements the PAN ID Query Client. |
| */ |
| |
| #include "panid_query_client.hpp" |
| |
| #if OPENTHREAD_CONFIG_COMMISSIONER_ENABLE && OPENTHREAD_FTD |
| |
| #include "coap/coap_message.hpp" |
| #include "common/as_core_type.hpp" |
| #include "common/code_utils.hpp" |
| #include "common/debug.hpp" |
| #include "common/instance.hpp" |
| #include "common/locator_getters.hpp" |
| #include "common/log.hpp" |
| #include "meshcop/meshcop.hpp" |
| #include "meshcop/meshcop_tlvs.hpp" |
| #include "thread/thread_netif.hpp" |
| #include "thread/uri_paths.hpp" |
| |
| namespace ot { |
| |
| RegisterLogModule("PanIdQueryClnt"); |
| |
| PanIdQueryClient::PanIdQueryClient(Instance &aInstance) |
| : InstanceLocator(aInstance) |
| , mCallback(nullptr) |
| , mContext(nullptr) |
| , mPanIdQuery(UriPath::kPanIdConflict, &PanIdQueryClient::HandleConflict, this) |
| { |
| Get<Tmf::Agent>().AddResource(mPanIdQuery); |
| } |
| |
| Error PanIdQueryClient::SendQuery(uint16_t aPanId, |
| uint32_t aChannelMask, |
| const Ip6::Address & aAddress, |
| otCommissionerPanIdConflictCallback aCallback, |
| void * aContext) |
| { |
| Error error = kErrorNone; |
| MeshCoP::ChannelMaskTlv channelMask; |
| Tmf::MessageInfo messageInfo(GetInstance()); |
| Coap::Message * message = nullptr; |
| |
| VerifyOrExit(Get<MeshCoP::Commissioner>().IsActive(), error = kErrorInvalidState); |
| VerifyOrExit((message = Get<Tmf::Agent>().NewPriorityMessage()) != nullptr, error = kErrorNoBufs); |
| |
| SuccessOrExit(error = message->InitAsPost(aAddress, UriPath::kPanIdQuery)); |
| SuccessOrExit(error = message->SetPayloadMarker()); |
| |
| SuccessOrExit( |
| error = Tlv::Append<MeshCoP::CommissionerSessionIdTlv>(*message, Get<MeshCoP::Commissioner>().GetSessionId())); |
| |
| channelMask.Init(); |
| channelMask.SetChannelMask(aChannelMask); |
| SuccessOrExit(error = channelMask.AppendTo(*message)); |
| |
| SuccessOrExit(error = Tlv::Append<MeshCoP::PanIdTlv>(*message, aPanId)); |
| |
| messageInfo.SetSockAddrToRlocPeerAddrTo(aAddress); |
| SuccessOrExit(error = Get<Tmf::Agent>().SendMessage(*message, messageInfo)); |
| |
| LogInfo("sent panid query"); |
| |
| mCallback = aCallback; |
| mContext = aContext; |
| |
| exit: |
| FreeMessageOnError(message, error); |
| return error; |
| } |
| |
| void PanIdQueryClient::HandleConflict(void *aContext, otMessage *aMessage, const otMessageInfo *aMessageInfo) |
| { |
| static_cast<PanIdQueryClient *>(aContext)->HandleConflict(AsCoapMessage(aMessage), AsCoreType(aMessageInfo)); |
| } |
| |
| void PanIdQueryClient::HandleConflict(Coap::Message &aMessage, const Ip6::MessageInfo &aMessageInfo) |
| { |
| uint16_t panId; |
| Ip6::MessageInfo responseInfo(aMessageInfo); |
| uint32_t mask; |
| |
| VerifyOrExit(aMessage.IsConfirmablePostRequest()); |
| |
| LogInfo("received panid conflict"); |
| |
| SuccessOrExit(Tlv::Find<MeshCoP::PanIdTlv>(aMessage, panId)); |
| |
| VerifyOrExit((mask = MeshCoP::ChannelMaskTlv::GetChannelMask(aMessage)) != 0); |
| |
| if (mCallback != nullptr) |
| { |
| mCallback(panId, mask, mContext); |
| } |
| |
| SuccessOrExit(Get<Tmf::Agent>().SendEmptyAck(aMessage, responseInfo)); |
| |
| LogInfo("sent panid query conflict response"); |
| |
| exit: |
| return; |
| } |
| |
| } // namespace ot |
| |
| #endif // OPENTHREAD_CONFIG_COMMISSIONER_ENABLE && OPENTHREAD_FTD |