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/*
* 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
* @brief
* This file defines the top-level ip6 functions for the OpenThread library.
*/
#ifndef OPENTHREAD_IP6_H_
#define OPENTHREAD_IP6_H_
#include "openthread/message.h"
#include <platform/radio.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* @defgroup api API
* @brief
* This module includes the application programming interface to the OpenThread stack.
*
* @{
*
* @defgroup execution Execution
* @defgroup commands Commands
* @defgroup config Configuration
* @defgroup diags Diagnostics
* @defgroup messages Message Buffers
* @defgroup ip6 IPv6
* @defgroup udp UDP
* @defgroup coap CoAP
*
* @}
*
*/
/**
* @addtogroup diags Diagnostics
*
* @brief
* This module includes functions that expose internal state.
*
* @{
*
*/
/**
* This function pointer is called when an IEEE 802.15.4 frame is received.
*
* @note This callback is called after FCS processing and @p aFrame may not contain the actual FCS that was received.
*
* @note This callback is called before IEEE 802.15.4 security processing and mSecurityValid in @p aFrame will
* always be false.
*
* @param[in] aFrame A pointer to the received IEEE 802.15.4 frame.
* @param[in] aContext A pointer to application-specific context.
*
*/
typedef void (*otLinkPcapCallback)(const RadioPacket *aFrame, void *aContext);
/**
* This function registers a callback to provide received raw IEEE 802.15.4 frames.
*
* @param[in] aInstance A pointer to an OpenThread instance.
* @param[in] aPcapCallback A pointer to a function that is called when receiving an IEEE 802.15.4 link frame or
* NULL to disable the callback.
* @param[in] aCallbackContext A pointer to application-specific context.
*
*/
void otSetLinkPcapCallback(otInstance *aInstance, otLinkPcapCallback aPcapCallback, void *aCallbackContext);
/**
* This function indicates whether or not promiscuous mode is enabled at the link layer.
*
* @param[in] aInstance A pointer to an OpenThread instance.
*
* @retval true Promiscuous mode is enabled.
* @retval false Promiscuous mode is not enabled.
*
*/
bool otIsLinkPromiscuous(otInstance *aInstance);
/**
* This function enables or disables the link layer promiscuous mode.
*
* @note Promiscuous mode may only be enabled when the Thread interface is disabled.
*
* @param[in] aInstance A pointer to an OpenThread instance.
* @param[in] aPromiscuous true to enable promiscuous mode, or false otherwise.
*
* @retval kThreadError_None Successfully enabled promiscuous mode.
* @retval kThreadError_InvalidState Could not enable promiscuous mode because
* the Thread interface is enabled.
*
*/
ThreadError otSetLinkPromiscuous(otInstance *aInstance, bool aPromiscuous);
/**
* @}
*
*/
/**
* @addtogroup ip6 IPv6
*
* @brief
* This module includes functions that control IPv6 communication.
*
* @{
*
*/
/**
* Get the list of IPv6 multicast addresses subscribed to the Thread interface.
*
* @param[in] aInstance A pointer to an OpenThread instance.
*
* @returns A pointer to the first Network Interface Multicast Address.
*/
const otNetifMulticastAddress *otGetMulticastAddresses(otInstance *aInstance);
/**
* Subscribe the Thread interface to a Network Interface Multicast Address.
*
* The passed in instance @p aAddress will be copied by the Thread interface. The Thread interface only
* supports a fixed number of externally added multicast addresses. See OPENTHREAD_CONFIG_MAX_EXT_MULTICAST_IP_ADDRS.
*
* @param[in] aInstance A pointer to an OpenThread instance.
* @param[in] aAddress A pointer to an IP Address.
*
* @retval kThreadErrorNone Successfully subscribed to the Network Interface Multicast Address.
* @retval kThreadError_InvalidArgs The IP Address indicated by @p aAddress is invalid address.
* @retval kThreadError_NoBufs The Network Interface is already storing the maximum allowed external multicast addresses.
*/
ThreadError otSubscribeMulticastAddress(otInstance *aInstance, const otIp6Address *aAddress);
/**
* Unsubscribe the Thread interface to a Network Interface Multicast Address.
*
* @param[in] aInstance A pointer to an OpenThread instance.
* @param[in] aAddress A pointer to an IP Address.
*
* @retval kThreadErrorNone Successfully unsubscribed to the Network Interface Multicast Address.
* @retval kThreadError_InvalidArgs The IP Address indicated by @p aAddress is an internal address.
* @retval kThreadError_NotFound The IP Address indicated by @p aAddress was not found.
*/
ThreadError otUnsubscribeMulticastAddress(otInstance *aInstance, const otIp6Address *aAddress);
/**
* Check if multicast promiscuous mode is enabled on the Thread interface.
*
* @param[in] aInstance A pointer to an OpenThread instance.
*
* @sa otEnableMulticastPromiscuousMode
* @sa otDisableMulticastPromiscuousMode
*/
bool otIsMulticastPromiscuousModeEnabled(otInstance *aInstance);
/**
* Enable multicast promiscuous mode on the Thread interface.
*
* @param[in] aInstance A pointer to an OpenThread instance.
*
* @sa otIsMulticastPromiscuousModeEnabled
* @sa otDisableMulticastPromiscuousMode
*/
void otEnableMulticastPromiscuousMode(otInstance *aInstance);
/**
* Disable multicast promiscuous mode on the Thread interface.
*
* @param[in] aInstance A pointer to an OpenThread instance.
*
* @sa otIsMulticastPromiscuousModeEnabled
* @sa otEnableMulticastPromiscuousMode
*/
void otDisableMulticastPromiscuousMode(otInstance *aInstance);
/**
* This function pointer is called to create IPv6 IID during SLAAC procedure.
*
* @param[in] aInstance A pointer to an OpenThread instance.
* @param[inout] aAddress A pointer to structure containing IPv6 address for which IID is being created.
* @param[inout] aContext A pointer to creator-specific context.
*
* @retval kThreadError_None Created valid IID for given IPv6 address.
* @retval kThreadError_Ipv6AddressCreationFailure Creation of valid IID for given IPv6 address failed.
*
*/
typedef ThreadError(*otSlaacIidCreate)(otInstance *aInstance, otNetifAddress *aAddress, void *aContext);
/**
* Update all automatically created IPv6 addresses for prefixes from current Network Data with SLAAC procedure.
*
* @param[in] aInstance A pointer to an OpenThread instance.
* @param[inout] aAddresses A pointer to an array of automatically created IPv6 addresses.
* @param[in] aNumAddresses The number of slots in aAddresses array.
* @param[in] aIidCreate A pointer to a function that is called to create IPv6 IIDs.
* @param[in] aContext A pointer to data passed to aIidCreate function.
*
*/
void otSlaacUpdate(otInstance *aInstance, otNetifAddress *aAddresses, uint32_t aNumAddresses,
otSlaacIidCreate aIidCreate, void *aContext);
/**
* Create random IID for given IPv6 address.
*
* @param[in] aInstance A pointer to an OpenThread instance.
* @param[inout] aAddress A pointer to structure containing IPv6 address for which IID is being created.
* @param[in] aContext A pointer to unused data.
*
* @retval kThreadError_None Created valid IID for given IPv6 address.
*
*/
ThreadError otCreateRandomIid(otInstance *aInstance, otNetifAddress *aAddresses, void *aContext);
/**
* Create IID for given IPv6 address using extended MAC address.
*
* @param[in] aInstance A pointer to an OpenThread instance.
* @param[inout] aAddress A pointer to structure containing IPv6 address for which IID is being created.
* @param[in] aContext A pointer to unused data.
*
* @retval kThreadError_None Created valid IID for given IPv6 address.
*
*/
ThreadError otCreateMacIid(otInstance *aInstance, otNetifAddress *aAddresses, void *aContext);
/**
* Create semantically opaque IID for given IPv6 address.
*
* @param[in] aInstance A pointer to an OpenThread instance.
* @param[inout] aAddress A pointer to structure containing IPv6 address for which IID is being created.
* @param[inout] aContext A pointer to a otSemanticallyOpaqueIidGeneratorData structure.
*
* @retval kThreadError_None Created valid IID for given IPv6 address.
* @retval kThreadError_Ipv6AddressCreationFailure Could not create valid IID for given IPv6 address.
*
*/
ThreadError otCreateSemanticallyOpaqueIid(otInstance *aInstance, otNetifAddress *aAddresses, void *aContext);
/**
* Allocate a new message buffer for sending an IPv6 message.
*
* @param[in] aInstance A pointer to an OpenThread instance.
* @param[in] aLinkSecurityEnabled TRUE if the message should be secured at Layer 2
*
* @returns A pointer to the message buffer or NULL if no message buffers are available.
*
* @sa otFreeMessage
*/
otMessage otNewIp6Message(otInstance *aInstance, bool aLinkSecurityEnabled);
/**
* This function pointer is called when an IPv6 datagram is received.
*
* @param[in] aMessage A pointer to the message buffer containing the received IPv6 datagram.
* @param[in] aContext A pointer to application-specific context.
*
*/
typedef void (*otReceiveIp6DatagramCallback)(otMessage aMessage, void *aContext);
/**
* This function registers a callback to provide received IPv6 datagrams.
*
* By default, this callback does not pass Thread control traffic. See otSetReceiveIp6DatagramFilterEnabled() to
* change the Thread control traffic filter setting.
*
* @param[in] aInstance A pointer to an OpenThread instance.
* @param[in] aCallback A pointer to a function that is called when an IPv6 datagram is received or
* NULL to disable the callback.
* @param[in] aCallbackContext A pointer to application-specific context.
*
* @sa otIsReceiveIp6DatagramFilterEnabled
* @sa otSetReceiveIp6DatagramFilterEnabled
*
*/
void otSetReceiveIp6DatagramCallback(otInstance *aInstance, otReceiveIp6DatagramCallback aCallback,
void *aCallbackContext);
/**
* This function indicates whether or not Thread control traffic is filtered out when delivering IPv6 datagrams
* via the callback specified in otSetReceiveIp6DatagramCallback().
*
* @param[in] aInstance A pointer to an OpenThread instance.
*
* @returns TRUE if Thread control traffic is filtered out, FALSE otherwise.
*
* @sa otSetReceiveIp6DatagramCallback
* @sa otSetReceiveIp6DatagramFilterEnabled
*
*/
bool otIsReceiveIp6DatagramFilterEnabled(otInstance *aInstance);
/**
* This function sets whether or not Thread control traffic is filtered out when delivering IPv6 datagrams
* via the callback specified in otSetReceiveIp6DatagramCallback().
*
* @param[in] aInstance A pointer to an OpenThread instance.
* @param[in] aEnabled TRUE if Thread control traffic is filtered out, FALSE otherwise.
*
* @sa otSetReceiveIp6DatagramCallback
* @sa otIsReceiveIp6DatagramFilterEnabled
*
*/
void otSetReceiveIp6DatagramFilterEnabled(otInstance *aInstance, bool aEnabled);
/**
* This function sends an IPv6 datagram via the Thread interface.
*
* @param[in] aInstance A pointer to an OpenThread instance.
* @param[in] aMessage A pointer to the message buffer containing the IPv6 datagram.
*
*/
ThreadError otSendIp6Datagram(otInstance *aInstance, otMessage aMessage);
/**
* @}
*
*/
#ifdef __cplusplus
} // extern "C"
#endif
#endif // OPENTHREAD_IP6_H_