/**
 *
 * \file
 *
 * \brief WINC3400 SSL Interface.
 *
 * Copyright (c) 2017-2018 Microchip Technology Inc. and its subsidiaries.
 *
 * \asf_license_start
 *
 * \page License
 *
 * Subject to your compliance with these terms, you may use Microchip
 * software and any derivatives exclusively with Microchip products.
 * It is your responsibility to comply with third party license terms applicable
 * to your use of third party software (including open source software) that
 * may accompany Microchip software.
 *
 * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
 * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
 * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
 * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
 * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
 * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
 * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
 * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
 * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
 * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
 * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
 *
 * \asf_license_stop
 *
 */

/**@defgroup SSLAPI SSL
*/

#ifndef __M2M_SSL_H__
#define __M2M_SSL_H__

/*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*
INCLUDES
*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*/

#include "common/include/nm_common.h"
#include "driver/include/m2m_types.h"
#include "driver/source/nmdrv.h"
#include "ecc_types.h"
#include "socket/include/socket.h"

/**@defgroup  SSLEnums Enumeration/Typedefs
 * @ingroup SSLAPI
 * @{*/

/*!
@typedef \
	void (*tpfAppSSLCb) (uint8 u8MsgType, void * pvMsg);

@brief A callback to get SSL notifications.

@param[in] u8MsgType
@param[in] pvMsg A structure to provide notification payload.
*/
typedef void (*tpfAppSSLCb) (uint8 u8MsgType, void * pvMsg);

/**@}
*/

/*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*
FUNCTION PROTOTYPES
*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*/
/** \defgroup SSLFUNCTIONS Functions
*  @ingroup SSLAPI
*/

/**@{*/
/*!
	@fn	\	NMI_API sint8 m2m_ssl_init(tpfAppSslCb pfAppSslCb);
	@brief	Initializes the SSL layer.
	@param [in]		pfAppSslCb
						Application SSL callback function.
	@return		The function SHALL return 0 for success and a negative value otherwise.
*/
NMI_API sint8 m2m_ssl_init(tpfAppSSLCb pfAppSSLCb);

/*!
	@fn	\	 NMI_API sint8 m2m_ssl_handshake_rsp(tstrEccReqInfo* strECCResp, uint8* pu8RspDataBuff, uint16 u16RspDataSz)
	@brief	 Sends ECC responses to the WINC
	@param [in]		strECCResp
						ECC Response struct.
	@param [in]		pu8RspDataBuff
						Pointer of the response data to be sent.
	@param [in]		u16RspDataSz
						Response data size.
	@return		The function SHALL return 0 for success and a negative value otherwise.
*/
NMI_API sint8 m2m_ssl_handshake_rsp(tstrEccReqInfo* strECCResp, uint8* pu8RspDataBuff, uint16 u16RspDataSz);

/*!
	@fn	\	NMI_API sint8 m2m_ssl_send_certs_to_winc(uint8* pu8Buffer, uint32 u32BufferSz)
	@brief	Sends certificates to the WINC
	@param [in]		pu8Buffer
						Pointer to the certificates. The buffer format must match the format of @ref tstrTlsSrvSecHdr
	@param [in]		u32BufferSz
						Size of the certificates.
	@return		The function SHALL return 0 for success and a negative value otherwise.
*/
NMI_API sint8 m2m_ssl_send_certs_to_winc(uint8* pu8Buffer, uint32 u32BufferSz);

/*!
	@fn	\	NMI_API sint8 m2m_ssl_retrieve_cert(uint16* pu16CurveType, uint8* pu8Hash, uint8* pu8Sig, tstrECPoint* pu8Key)
	@brief	Retrieve the ECDSA certificate to be verified from the WINC
	@param [out]	pu16CurveType
						Pointer to the certificate curve type.
	@param [out]	pu8Hash
						Pointer to the certificate hash.
	@param [out]	pu8Sig
						Pointer to the certificate signature.
	@param [out]	pu8Key
						Pointer to the certificate Key.
	@return		The function SHALL return 0 for success and a negative value otherwise.
*/
NMI_API sint8 m2m_ssl_retrieve_cert(uint16* pu16CurveType, uint8* pu8Hash, uint8* pu8Sig, tstrECPoint* pu8Key);

/*!
	@fn	\	NMI_API sint8 m2m_ssl_retrieve_hash(uint8* pu8Hash, uint16 u16HashSz)
	@brief	Retrieve the certificate hash
	@param [out]	pu8Hash
						Pointer to the certificate hash.
	@param [in]		u16HashSz
						Hash size.
	@return		The function SHALL return 0 for success and a negative value otherwise.
*/
NMI_API sint8 m2m_ssl_retrieve_hash(uint8* pu8Hash, uint16 u16HashSz);

/*!
	@fn	\	NMI_API void m2m_ssl_stop_processing_certs(void)
	@brief	Allow ssl driver to tidy up in case application does not read all available certificates.
	@warning	This API must only be called if some certificates are left unread.
	@return		None.
*/
NMI_API void m2m_ssl_stop_processing_certs(void);

/*!
	@fn	\	NMI_API void m2m_ssl_ecc_process_done(void)
	@brief	Allow ssl driver to tidy up after application has finished processing ecc message.
	@warning	This API must be called after receiving a SSL callback with type @ref M2M_SSL_REQ_ECC
	@return		None.
*/
NMI_API void m2m_ssl_ecc_process_done(void);

/*!
@fn	\
	NMI_API sint8 m2m_ssl_set_active_ciphersuites(uint32 u32SslCsBMP);
	Override the default Active SSL ciphers in the SSL module with a certain combination selected by the caller in the form of
	a bitmap containing the required ciphers to be on.
	There is no need to call this function if the application will not change the default ciphersuites.

@param [in]	u32SslCsBMP
				Bitmap containing the desired ciphers to be enabled for the SSL module. The ciphersuites are defined in
				@ref SSLCipherSuiteID.
				The default ciphersuites are all ciphersuites supported by the firmware with the exception of ECC ciphersuites.
				The caller can override the default with any desired combination, except for combinations involving both RSA
				and ECC; if any RSA ciphersuite is enabled, then firmware will disable all ECC ciphersuites.
				If u32SslCsBMP does not contain any ciphersuites supported by firmware, then the current active list will not
				be changed.

@return		
	- [SOCK_ERR_NO_ERROR](@ref SOCK_ERR_NO_ERROR)
	- [SOCK_ERR_INVALID_ARG](@ref SOCK_ERR_INVALID_ARG)
*/
sint8 m2m_ssl_set_active_ciphersuites(uint32 u32SslCsBMP);

 /**@}*/
#endif /* __M2M_SSL_H__ */