1 /*
2  *  Copyright (c) 2016, The OpenThread Authors.
3  *  All rights reserved.
4  *
5  *  Redistribution and use in source and binary forms, with or without
6  *  modification, are permitted provided that the following conditions are met:
7  *  1. Redistributions of source code must retain the above copyright
8  *     notice, this list of conditions and the following disclaimer.
9  *  2. Redistributions in binary form must reproduce the above copyright
10  *     notice, this list of conditions and the following disclaimer in the
11  *     documentation and/or other materials provided with the distribution.
12  *  3. Neither the name of the copyright holder nor the
13  *     names of its contributors may be used to endorse or promote products
14  *     derived from this software without specific prior written permission.
15  *
16  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17  *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  *  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20  *  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21  *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22  *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23  *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24  *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25  *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26  *  POSSIBILITY OF SUCH DAMAGE.
27  */
28 
29 /**
30  * @file
31  *   This file implements the Announce Begin Client.
32  */
33 
34 #include "announce_begin_client.hpp"
35 
36 #if OPENTHREAD_CONFIG_COMMISSIONER_ENABLE && OPENTHREAD_FTD
37 
38 #include "coap/coap_message.hpp"
39 #include "common/code_utils.hpp"
40 #include "common/debug.hpp"
41 #include "common/locator_getters.hpp"
42 #include "common/log.hpp"
43 #include "instance/instance.hpp"
44 #include "meshcop/meshcop.hpp"
45 #include "meshcop/meshcop_tlvs.hpp"
46 #include "thread/thread_netif.hpp"
47 #include "thread/uri_paths.hpp"
48 
49 namespace ot {
50 
51 RegisterLogModule("MeshCoP");
52 
AnnounceBeginClient(Instance & aInstance)53 AnnounceBeginClient::AnnounceBeginClient(Instance &aInstance)
54     : InstanceLocator(aInstance)
55 {
56 }
57 
SendRequest(uint32_t aChannelMask,uint8_t aCount,uint16_t aPeriod,const Ip6::Address & aAddress)58 Error AnnounceBeginClient::SendRequest(uint32_t            aChannelMask,
59                                        uint8_t             aCount,
60                                        uint16_t            aPeriod,
61                                        const Ip6::Address &aAddress)
62 {
63     Error            error = kErrorNone;
64     Tmf::MessageInfo messageInfo(GetInstance());
65     Coap::Message   *message = nullptr;
66 
67     VerifyOrExit(Get<MeshCoP::Commissioner>().IsActive(), error = kErrorInvalidState);
68     VerifyOrExit((message = Get<Tmf::Agent>().NewPriorityMessage()) != nullptr, error = kErrorNoBufs);
69 
70     SuccessOrExit(error = message->InitAsPost(aAddress, kUriAnnounceBegin));
71     SuccessOrExit(error = message->SetPayloadMarker());
72 
73     SuccessOrExit(
74         error = Tlv::Append<MeshCoP::CommissionerSessionIdTlv>(*message, Get<MeshCoP::Commissioner>().GetSessionId()));
75 
76     SuccessOrExit(error = MeshCoP::ChannelMaskTlv::AppendTo(*message, aChannelMask));
77 
78     SuccessOrExit(error = Tlv::Append<MeshCoP::CountTlv>(*message, aCount));
79     SuccessOrExit(error = Tlv::Append<MeshCoP::PeriodTlv>(*message, aPeriod));
80 
81     messageInfo.SetSockAddrToRlocPeerAddrTo(aAddress);
82 
83     SuccessOrExit(error = Get<Tmf::Agent>().SendMessage(*message, messageInfo));
84 
85     LogInfo("Sent %s", UriToString<kUriAnnounceBegin>());
86 
87 exit:
88     FreeMessageOnError(message, error);
89     return error;
90 }
91 
92 } // namespace ot
93 
94 #endif // OPENTHREAD_CONFIG_COMMISSIONER_ENABLE && OPENTHREAD_FTD
95