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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 includes functions for the Thread Joiner role.
*/
#ifndef OPENTHREAD_JOINER_H_
#define OPENTHREAD_JOINER_H_
#include <openthread/platform/radio.h>
#include <openthread/platform/toolchain.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* @addtogroup api-joiner
*
* @brief
* This module includes functions for the Thread Joiner role.
*
* @note
* The functions in this module require `OPENTHREAD_CONFIG_JOINER_ENABLE=1`.
*
* @{
*
*/
/**
* This enumeration defines the Joiner State.
*
*/
typedef enum otJoinerState
{
OT_JOINER_STATE_IDLE = 0,
OT_JOINER_STATE_DISCOVER = 1,
OT_JOINER_STATE_CONNECT = 2,
OT_JOINER_STATE_CONNECTED = 3,
OT_JOINER_STATE_ENTRUST = 4,
OT_JOINER_STATE_JOINED = 5,
} otJoinerState;
#define OT_JOINER_MAX_DISCERNER_LENGTH 64 ///< Maximum length of a Joiner Discerner in bits.
/**
* This structure represents a Joiner Discerner.
*
*/
typedef struct otJoinerDiscerner
{
uint64_t mValue; ///< Discerner value (the lowest `mLength` bits specify the discerner).
uint8_t mLength; ///< Length (number of bits) - must be non-zero and at most `OT_JOINER_MAX_DISCERNER_LENGTH`.
} otJoinerDiscerner;
/**
* This function pointer is called to notify the completion of a join operation.
*
* @param[in] aError OT_ERROR_NONE if the join process succeeded.
* OT_ERROR_SECURITY if the join process failed due to security credentials.
* OT_ERROR_NOT_FOUND if no joinable network was discovered.
* OT_ERROR_RESPONSE_TIMEOUT if a response timed out.
* @param[in] aContext A pointer to application-specific context.
*
*/
typedef void (*otJoinerCallback)(otError aError, void *aContext);
/**
* This function enables the Thread Joiner role.
*
* @param[in] aInstance A pointer to an OpenThread instance.
* @param[in] aPskd A pointer to the PSKd.
* @param[in] aProvisioningUrl A pointer to the Provisioning URL (may be NULL).
* @param[in] aVendorName A pointer to the Vendor Name (may be NULL).
* @param[in] aVendorModel A pointer to the Vendor Model (may be NULL).
* @param[in] aVendorSwVersion A pointer to the Vendor SW Version (may be NULL).
* @param[in] aVendorData A pointer to the Vendor Data (may be NULL).
* @param[in] aCallback A pointer to a function that is called when the join operation completes.
* @param[in] aContext A pointer to application-specific context.
*
* @retval OT_ERROR_NONE Successfully started the Joiner role.
* @retval OT_ERROR_BUSY The previous attempt is still on-going.
* @retval OT_ERROR_INVALID_ARGS @p aPskd or @p aProvisioningUrl is invalid.
* @retval OT_ERROR_INVALID_STATE The IPv6 stack is not enabled or Thread stack is fully enabled.
*
*/
otError otJoinerStart(otInstance * aInstance,
const char * aPskd,
const char * aProvisioningUrl,
const char * aVendorName,
const char * aVendorModel,
const char * aVendorSwVersion,
const char * aVendorData,
otJoinerCallback aCallback,
void * aContext);
/**
* This function disables the Thread Joiner role.
*
* @param[in] aInstance A pointer to an OpenThread instance.
*
*/
void otJoinerStop(otInstance *aInstance);
/**
* This function returns the Joiner State.
*
* @param[in] aInstance A pointer to an OpenThread instance.
*
* @retval OT_JOINER_STATE_IDLE
* @retval OT_JOINER_STATE_DISCOVER
* @retval OT_JOINER_STATE_CONNECT
* @retval OT_JOINER_STATE_CONNECTED
* @retval OT_JOINER_STATE_ENTRUST
* @retval OT_JOINER_STATE_JOINED
*
*/
otJoinerState otJoinerGetState(otInstance *aInstance);
/**
* This function gets the Joiner ID.
*
* If a Joiner Discerner is not set, Joiner ID is the first 64 bits of the result of computing SHA-256 over
* factory-assigned IEEE EUI-64. Otherwise the Joiner ID is calculated from the Joiner Discerner value.
*
* The Joiner ID is also used as the device's IEEE 802.15.4 Extended Address during commissioning process.
*
* @param[in] aInstance A pointer to the OpenThread instance.
*
* @returns A pointer to the Joiner ID.
*
*/
const otExtAddress *otJoinerGetId(otInstance *aInstance);
/**
* This function sets the Joiner Discerner.
*
* The Joiner Discerner is used to calculate the Joiner ID used during commissioning/joining process.
*
* By default (when a discerner is not provided or set to NULL), Joiner ID is derived as first 64 bits of the result
* of computing SHA-256 over factory-assigned IEEE EUI-64. Note that this is the main behavior expected by Thread
* specification.
*
* @param[in] aInstance A pointer to the OpenThread instance.
* @param[in] aDiscerner A pointer to a Joiner Discerner. If NULL clears any previously set discerner.
*
* @retval OT_ERROR_NONE The Joiner Discerner updated successfully.
* @retval OT_ERROR_INVALID_ARGS @p aDiscerner is not valid (specified length is not within valid range).
* @retval OT_ERROR_INVALID_STATE There is an ongoing Joining process so Joiner Discerner could not be changed.
*
*/
otError otJoinerSetDiscerner(otInstance *aInstance, otJoinerDiscerner *aDiscerner);
/**
* This function gets the Joiner Discerner.
*
* @param[in] aInstance A pointer to the OpenThread instance.
*
* @returns A pointer to Joiner Discerner or NULL if none is set.
*
*/
const otJoinerDiscerner *otJoinerGetDiscerner(otInstance *aInstance);
/**
* This function converts a given joiner state enumeration value to a human-readable string.
*
* @param[in] aState The joiner state.
*
* @returns A human-readable string representation of @p aState.
*
*/
const char *otJoinerStateToString(otJoinerState aState);
/**
* @}
*
*/
#ifdef __cplusplus
} // end of extern "C"
#endif
#endif // OPENTHREAD_JOINER_H_