m2m_ssl.c File Reference

This module contains M2M Wi-Fi SSL APIs implementation.

Copyright (c) 2017-2021 Microchip Technology Inc. and its subsidiaries.

#include "driver/include/m2m_ssl.h"
#include "driver/source/m2m_hif.h"
#include "driver/source/nmasic.h"

Macros
#define	CHUNKHDRSZ   (sizeof(tstrTlsSrvChunkHdr))
#define	CHUNKSZ   (TXLIMIT - 256)
#define	TXLIMIT   (256 * 6)

Functions
static void	m2m_ssl_cb (uint8 u8OpCode, uint16 u16DataSize, uint32 u32Addr)
	Internal SSL callback function. More...
NMI_API void	m2m_ssl_ecc_process_done (void)
	Allow SSL driver to tidy up after application has finished processing ECC message. More...
NMI_API sint8	m2m_ssl_handshake_rsp (tstrEccReqInfo *strECCResp, uint8 *pu8RspDataBuff, uint16 u16RspDataSz)
	Sends ECC responses to the WINC. More...
NMI_API sint8	m2m_ssl_init (tpfAppSSLCb pfAppSSLCb)
	Initializes the SSL layer. More...
NMI_API sint8	m2m_ssl_retrieve_cert (uint16 *pu16Curve, uint8 *pu8Value, uint8 *pu8Sig, tstrECPoint *pstrKey)
	Retrieve the next set of information from the WINC for ECDSA verification. More...
NMI_API sint8	m2m_ssl_retrieve_hash (uint8 *pu8Value, uint16 u16ValueSz)
	Retrieve the value from the WINC for ECDSA signing. More...
NMI_API sint8	m2m_ssl_retrieve_next_for_verifying (tenuEcNamedCurve *penuCurve, uint8 *pu8Value, uint16 *pu16ValueSz, uint8 *pu8Sig, uint16 *pu16SigSz, tstrECPoint *pstrKey)
	Retrieve the next set of information from the WINC for ECDSA verification. More...
NMI_API sint8	m2m_ssl_send_certs_to_winc (uint8 *pu8Buffer, uint32 u32BufferSz)
	Sends certificates to the WINC. More...
NMI_API sint8	m2m_ssl_set_active_ciphersuites (uint32 u32SslCsBMP)
	Sets the active ciphersuites. More...
NMI_API void	m2m_ssl_stop_processing_certs (void)
	Allow SSL driver to tidy up in case application does not read all available certificates. More...
NMI_API void	m2m_ssl_stop_retrieving (void)
	Allow SSL driver to tidy up when the application chooses not to retrieve all available information. More...

Variables
static tenuTlsFlashStatus	genuStatus = TLS_FLASH_ERR_UNKNOWN
static tpfAppSSLCb	gpfAppSSLCb = NULL
static uint32	gu32HIFAddr = 0

#define CHUNKHDRSZ   (sizeof(tstrTlsSrvChunkHdr))

Referenced by m2m_ssl_send_certs_to_winc().

#define CHUNKSZ   (TXLIMIT - 256)

Referenced by m2m_ssl_send_certs_to_winc().

#define TXLIMIT   (256 * 6)

Referenced by m2m_ssl_send_certs_to_winc().

void m2m_ssl_cb ( uint8  u8OpCode, uint16  u16DataSize, uint32  u32Addr  )

static

Internal SSL callback function.

Parameters

[in]	u8OpCode	HIF Opcode type.
[in]	u16DataSize	HIF data length.
[in]	u32Addr	HIF address.

References genuStatus, gpfAppSSLCb, gu32HIFAddr, hif_receive(), M2M_ERR, M2M_SSL_REQ_ECC, M2M_SSL_RESP_SET_CS_LIST, M2M_SSL_RESP_WRITE_OWN_CERTS, M2M_SUCCESS, TLS_FLASH_ERR_CORRUPT, TLS_FLASH_ERR_NO_CHANGE, TLS_FLASH_ERR_UNKNOWN, TLS_FLASH_OK, TLS_FLASH_OK_NO_CHANGE, tstrTlsSrvChunkHdr::u16Offset32, tstrTlsSrvChunkHdr::u16Sig, tstrTlsSrvChunkHdr::u16Size32, and tstrTlsSrvChunkHdr::u16TotalSize32.

Referenced by m2m_ssl_init().

tenuTlsFlashStatus genuStatus = TLS_FLASH_ERR_UNKNOWN

static

Referenced by m2m_ssl_cb(), and m2m_ssl_init().

tpfAppSSLCb gpfAppSSLCb = NULL

static

Referenced by m2m_ssl_cb(), and m2m_ssl_init().

uint32 gu32HIFAddr = 0

static

Referenced by m2m_ssl_cb(), m2m_ssl_ecc_process_done(), m2m_ssl_init(), m2m_ssl_retrieve_hash(), and m2m_ssl_retrieve_next_for_verifying().