1 /* 2 * Copyright (c) 2021, 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 IPv6 Neighbor Discovery Agent. 32 */ 33 34 #ifndef NEIGHBOR_DISCOVERY_AGENT_HPP_ 35 #define NEIGHBOR_DISCOVERY_AGENT_HPP_ 36 37 #include "openthread-core-config.h" 38 39 #if OPENTHREAD_CONFIG_NEIGHBOR_DISCOVERY_AGENT_ENABLE 40 41 #include "common/locator.hpp" 42 #include "common/non_copyable.hpp" 43 #include "net/netif.hpp" 44 45 namespace ot { 46 namespace NeighborDiscovery { 47 48 class Agent : public InstanceLocator, private NonCopyable 49 { 50 public: 51 /** 52 * Initializes the object. 53 * 54 * @param[in] aInstance A reference to the OpenThread instance. 55 * 56 */ Agent(Instance & aInstance)57 explicit Agent(Instance &aInstance) 58 : InstanceLocator(aInstance) 59 { 60 FreeAloc(); 61 } 62 63 /** 64 * Updates the Neighbor Discovery Agents using current Thread Network Data. 65 * 66 */ 67 void UpdateService(void); 68 69 private: FreeAloc(void)70 void FreeAloc(void) { mAloc.mNext = &mAloc; } IsAlocInUse(void) const71 bool IsAlocInUse(void) const { return mAloc.mNext != &mAloc; } 72 73 Ip6::Netif::UnicastAddress mAloc; 74 }; 75 76 } // namespace NeighborDiscovery 77 } // namespace ot 78 79 #endif // OPENTHREAD_CONFIG_NEIGHBOR_DISCOVERY_AGENT_ENABLE 80 81 #endif // NEIGHBOR_DISCOVERY_AGENT_HPP_ 82