| /* |
| * Copyright (c) 2021, 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 infrastructure interface for posix. |
| */ |
| |
| #include "openthread-posix-config.h" |
| |
| #include <net/if.h> |
| |
| #include "core/common/non_copyable.hpp" |
| #include "posix/platform/mainloop.hpp" |
| |
| #if OPENTHREAD_CONFIG_BORDER_ROUTING_ENABLE |
| |
| namespace ot { |
| namespace Posix { |
| |
| /** |
| * This class manages infrastructure network interface. |
| * |
| */ |
| class InfraNetif : public Mainloop::Source, private NonCopyable |
| { |
| public: |
| /** |
| * This method updates the fd_set and timeout for mainloop. |
| * |
| * @param[in,out] aContext A reference to the mainloop context. |
| * |
| */ |
| void Update(otSysMainloopContext &aContext) override; |
| |
| /** |
| * This method performs infrastructure network interface processing. |
| * |
| * @param[in] aContext A reference to the mainloop context. |
| * |
| */ |
| void Process(const otSysMainloopContext &aContext) override; |
| |
| /** |
| * This method initializes the infrastructure network interface. |
| * |
| * @note This method is called before OpenThread instance is created. |
| * |
| * @param[in] aIfName A pointer to infrastructure network interface name. |
| * |
| */ |
| void Init(const char *aIfName); |
| |
| /** |
| * This method sets up the infrastructure network interface. |
| * |
| * @note This method is called after OpenThread instance is created. |
| * |
| */ |
| void SetUp(void); |
| |
| /** |
| * This method tears down the infrastructure network interface. |
| * |
| * @note This method is called before OpenThread instance is destructed. |
| * |
| */ |
| void TearDown(void); |
| |
| /** |
| * This method deinitializes the infrastructure network interface. |
| * |
| * @note This method is called after OpenThread instance is destructed. |
| * |
| */ |
| void Deinit(void); |
| |
| /** |
| * This method checks whether the infrastructure network interface is running. |
| * |
| */ |
| bool IsRunning(void) const; |
| |
| /** |
| * This method sends an ICMPv6 Neighbor Discovery message on given infrastructure interface. |
| * |
| * See RFC 4861: https://tools.ietf.org/html/rfc4861. |
| * |
| * @param[in] aInfraIfIndex The index of the infrastructure interface this message is sent to. |
| * @param[in] aDestAddress The destination address this message is sent to. |
| * @param[in] aBuffer The ICMPv6 message buffer. The ICMPv6 checksum is left zero and the |
| * platform should do the checksum calculate. |
| * @param[in] aBufferLength The length of the message buffer. |
| * |
| * @note Per RFC 4861, the implementation should send the message with IPv6 link-local source address |
| * of interface @p aInfraIfIndex and IP Hop Limit 255. |
| * |
| * @retval OT_ERROR_NONE Successfully sent the ICMPv6 message. |
| * @retval OT_ERROR_FAILED Failed to send the ICMPv6 message. |
| * |
| */ |
| otError SendIcmp6Nd(uint32_t aInfraIfIndex, |
| const otIp6Address &aDestAddress, |
| const uint8_t * aBuffer, |
| uint16_t aBufferLength); |
| |
| /** |
| * This method gets the infrastructure network interface name. |
| * |
| * @returns The infrastructure network interface name, or `nullptr` if not specified. |
| * |
| */ |
| const char *GetNetifName(void) const { return (mInfraIfIndex != 0) ? mInfraIfName : nullptr; } |
| |
| /** |
| * This function gets the infrastructure network interface singleton. |
| * |
| * @returns The singleton object. |
| * |
| */ |
| static InfraNetif &Get(void); |
| |
| private: |
| char mInfraIfName[IFNAMSIZ]; |
| uint32_t mInfraIfIndex = 0; |
| int mInfraIfIcmp6Socket = -1; |
| int mNetLinkSocket = -1; |
| |
| void ReceiveNetLinkMessage(void); |
| void ReceiveIcmp6Message(void); |
| bool HasLinkLocalAddress(void) const; |
| }; |
| |
| } // namespace Posix |
| } // namespace ot |
| #endif // OPENTHREAD_CONFIG_BORDER_ROUTING_ENABLE |