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 includes definitions for responding to PANID Query Requests.
32  */
33 
34 #ifndef PANID_QUERY_SERVER_HPP_
35 #define PANID_QUERY_SERVER_HPP_
36 
37 #include "openthread-core-config.h"
38 
39 #include "coap/coap.hpp"
40 #include "common/locator.hpp"
41 #include "common/non_copyable.hpp"
42 #include "common/timer.hpp"
43 #include "mac/mac.hpp"
44 #include "net/ip6_address.hpp"
45 #include "net/udp6.hpp"
46 
47 namespace ot {
48 
49 /**
50  * This class implements handling PANID Query Requests.
51  *
52  */
53 class PanIdQueryServer : public InstanceLocator, private NonCopyable
54 {
55 public:
56     /**
57      * This constructor initializes the object.
58      *
59      */
60     explicit PanIdQueryServer(Instance &aInstance);
61 
62 private:
63     static constexpr uint32_t kScanDelay = 1000; ///< SCAN_DELAY (in msec)
64 
65     static void HandleQuery(void *aContext, otMessage *aMessage, const otMessageInfo *aMessageInfo);
66     void        HandleQuery(Coap::Message &aMessage, const Ip6::MessageInfo &aMessageInfo);
67 
68     static void HandleScanResult(Mac::ActiveScanResult *aScanResult, void *aContext);
69     void        HandleScanResult(Mac::ActiveScanResult *aScanResult);
70 
71     static void HandleTimer(Timer &aTimer);
72     void        HandleTimer(void);
73 
74     static void HandleUdpReceive(void *aContext, otMessage *aMessage, const otMessageInfo *aMessageInfo);
75 
76     void SendConflict(void);
77 
78     Ip6::Address mCommissioner;
79     uint32_t     mChannelMask;
80     uint16_t     mPanId;
81 
82     TimerMilli mTimer;
83 
84     Coap::Resource mPanIdQuery;
85 };
86 
87 /**
88  * @}
89  */
90 
91 } // namespace ot
92 
93 #endif // PANID_QUERY_SERVER_HPP_
94