| /* |
| * 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 includes definitions for DHCPv6 Client. |
| */ |
| |
| #ifndef DHCP6_CLIENT_HPP_ |
| #define DHCP6_CLIENT_HPP_ |
| |
| #include <openthread/dhcp6_client.h> |
| |
| #include "common/locator.hpp" |
| #include "common/message.hpp" |
| #include "common/timer.hpp" |
| #include "common/trickle_timer.hpp" |
| #include "mac/mac.hpp" |
| #include "mac/mac_frame.hpp" |
| #include "net/dhcp6.hpp" |
| #include "net/udp6.hpp" |
| |
| namespace ot { |
| |
| class ThreadNetif; |
| namespace Mle { class MleRouter; } |
| |
| namespace Dhcp6 { |
| |
| /** |
| * @addtogroup core-dhcp6 |
| * |
| * @brief |
| * This module includes definitions for DHCPv6 Client. |
| * |
| * @{ |
| * |
| */ |
| |
| |
| /** |
| * Some constants |
| * |
| */ |
| enum |
| { |
| kTrickleTimerImin = 1, |
| kTrickleTimerImax = 120, |
| }; |
| |
| /** |
| * This class implements IdentityAssociation. |
| * |
| */ |
| OT_TOOL_PACKED_BEGIN |
| class IdentityAssociation |
| { |
| public: |
| |
| /** |
| * Status of IdentityAssociation |
| * |
| */ |
| typedef enum Status |
| { |
| kStatusInvalid, |
| kStatusSolicit, |
| kStatusSoliciting, |
| kStatusSolicitReplied, |
| } Status; |
| |
| /** |
| * This method returns the status of the object. |
| * |
| * @returns Status. |
| * |
| */ |
| Status GetStatus(void) const { return static_cast<Status>(mStatus); } |
| |
| /** |
| * This method sets the status of the object. |
| * |
| * @param[in] aStatus The Status to set. |
| * |
| */ |
| void SetStatus(Status aStatus) { mStatus = static_cast<uint8_t>(aStatus); } |
| |
| /** |
| * This method returns the rloc of the DHCP Agent. |
| * |
| * @returns Status. |
| * |
| */ |
| uint16_t GetPrefixAgentRloc(void) const { return mPrefixAgentRloc; } |
| |
| /** |
| * This method sets the rloc of the DHCP Agent. |
| * |
| * @param[in] aRloc The rloc of the DHCP Agent. |
| * |
| */ |
| void SetPrefixAgentRloc(uint16_t aRloc16) { mPrefixAgentRloc = aRloc16; } |
| |
| /** |
| * This method returns the pointer to the IPv6 prefix. |
| * |
| * @returns A pointer to the IPv6 prefix. |
| * |
| */ |
| otIp6Prefix *GetPrefix(void) { return &mIp6Prefix; } |
| |
| /** |
| * This method sets the IPv6 prefix to specified location. |
| * |
| * @param[in] aIp6Prefix The reference to the IPv6 prefix to set. |
| * |
| */ |
| void SetPrefix(otIp6Prefix &aIp6Prefix) { memcpy(&mIp6Prefix, &aIp6Prefix, sizeof(otIp6Prefix)); } |
| |
| /** |
| * This method returns the pointer to the next IdentityAssociation. |
| * |
| * @returns A pointer to the next IdentityAssociation. |
| * |
| */ |
| IdentityAssociation *GetNext(void) { return mNext; } |
| |
| /** |
| * This method sets the pointer to the next IdentityAssociation. |
| * |
| */ |
| void SetNext(IdentityAssociation *aNext) { mNext = aNext; } |
| |
| private: |
| uint8_t mStatus; ///< Status of IdentityAssocation |
| uint16_t mPrefixAgentRloc; ///< Rloc of Prefix Agent |
| otIp6Prefix mIp6Prefix; ///< Prefix |
| IdentityAssociation *mNext; ///< Pointer to next IdentityAssocation |
| } OT_TOOL_PACKED_END; |
| |
| |
| /** |
| * This class implements DHCPv6 Client. |
| * |
| */ |
| class Dhcp6Client: public ThreadNetifLocator |
| { |
| public: |
| /** |
| * This constructor initializes the object. |
| * |
| * @param[in] aThreadNetif A reference to the Thread network interface. |
| * |
| */ |
| explicit Dhcp6Client(ThreadNetif &aThreadNetif); |
| |
| /** |
| * This method update addresses that shall be automatically created using DHCP. |
| * |
| * @param[in] aInstance A pointer to openThread instance. |
| * @param[inout] aAddresses A pointer to an array containing addresses created by this module. |
| * @param[in] aNumAddresses The number of elements in aAddresses array. |
| * @param[in] aContext A pointer to IID creator-specific context data. |
| * |
| */ |
| void UpdateAddresses(otInstance *aInstance, otDhcpAddress *aAddresses, uint32_t aNumAddresses, void *aContext); |
| |
| private: |
| otError Start(void); |
| otError Stop(void); |
| |
| otError Solicit(uint16_t aRloc16); |
| |
| void AddIdentityAssociation(uint16_t aRloc16, otIp6Prefix &aIp6Prefix); |
| void RemoveIdentityAssociation(uint16_t aRloc16, otIp6Prefix &aIp6Prefix); |
| |
| bool ProcessNextIdentityAssociation(void); |
| |
| otError AppendHeader(Message &aMessage); |
| otError AppendClientIdentifier(Message &aMessage); |
| otError AppendIaNa(Message &aMessage, uint16_t aRloc16); |
| otError AppendIaAddress(Message &aMessage, uint16_t aRloc16); |
| otError AppendElapsedTime(Message &aMessage); |
| otError AppendRapidCommit(Message &aMessage); |
| |
| static void HandleUdpReceive(void *aContext, otMessage *aMessage, const otMessageInfo *aMessageInfo); |
| void HandleUdpReceive(Message &aMessage, const Ip6::MessageInfo &aMessageInfo); |
| |
| void ProcessReply(Message &aMessage); |
| uint16_t FindOption(Message &aMessage, uint16_t aOffset, uint16_t aLength, Code aCode); |
| otError ProcessServerIdentifier(Message &aMessage, uint16_t aOffset); |
| otError ProcessClientIdentifier(Message &aMessage, uint16_t aOffset); |
| otError ProcessIaNa(Message &aMessage, uint16_t aOffset); |
| otError ProcessStatusCode(Message &aMessage, uint16_t aOffset); |
| otError ProcessIaAddress(Message &aMessage, uint16_t aOffset); |
| |
| static bool HandleTrickleTimer(TrickleTimer &aTrickleTimer); |
| bool HandleTrickleTimer(void); |
| |
| static Dhcp6Client &GetOwner(const Context &aContext); |
| |
| TrickleTimer mTrickleTimer; |
| |
| Ip6::UdpSocket mSocket; |
| |
| uint8_t mTransactionId[kTransactionIdSize]; |
| uint32_t mStartTime; |
| otDhcpAddress *mAddresses; |
| uint32_t mNumAddresses; |
| |
| IdentityAssociation mIdentityAssociations[OPENTHREAD_CONFIG_NUM_DHCP_PREFIXES]; |
| IdentityAssociation *mIdentityAssociationHead; |
| IdentityAssociation *mIdentityAssociationAvail; |
| }; |
| |
| } // namespace Dhcp6 |
| } // namespace ot |
| |
| # endif // DHCP6_CLIENT_HPP_ |