winc1500 TLS wrapper.

#include <stdbool.h>
#include <string.h>
#include "AWS_SDK/aws_iot_src/utils/aws_iot_error.h"
#include "AWS_SDK/aws_iot_src/utils/aws_iot_log.h"
#include "AWS_SDK/aws_iot_src/protocol/mqtt/aws_iot_embedded_client_wrapper/network_interface.h"
#include "driver/include/m2m_wifi.h"
#include "driver/source/nmasic.h"
#include "socket/include/socket.h"

Macros
#define	DNS_REQUEST 25

#define	IPV4_BYTE(val, index) ((val >> (index * 8)) & 0xFF)
	Using IP address. More...

Functions
int	iot_tls_connect (Network *pNetwork, TLSConnectParams params)
	TLS connection functionality. More...

int	iot_tls_destroy (Network *pNetwork)
	TLS interface de-init function. More...

void	iot_tls_disconnect (Network *pNetwork)
	TLS disconnect function. More...

int	iot_tls_init (Network *pNetwork)
	Intialization of network interface for TLS function. More...

int	iot_tls_is_connected (Network *pNetwork)
	TLS connection status call. More...

int	iot_tls_read (Network pNetwork, unsigned char pMsg, int len, int timeout_ms)
	Read bytes from the network socket. More...

int	iot_tls_write (Network pNetwork, unsigned char pMsg, int len, int timeout_ms)
	TLS write functionality. More...

static void	resolve_cb (uint8_t *hostName, uint32_t hostIp)
	Callback function of IP address. More...

static void	socket_cb (SOCKET sock, uint8_t u8Msg, void *pvMsg)
	Callback function of TCP client socket. More...

static void	wait_for_event (uint8_t msg)
	Event handling function for WIFI. More...

Variables
static uint8_t *	buf_ptr = &gau8SocketTestBuffer

static int8_t	err = 0

static uint8_t	gau8SocketTestBuffer [1460]

static bool	gbHostIpByName = false
	Get host IP status variable. More...

uint32_t	gu32HostIp = 0
	IP address of host. More...

volatile uint32_t	ms_ticks
	TLS read functionality. More...

uint32_t	received_bytes = 0

uint32_t	sent_bytes = 0

static int8_t	state = -1

#define DNS_REQUEST 25

Referenced by iot_tls_connect(), and resolve_cb().

#define IPV4_BYTE	(	val,
		index
	)	((val >> (index * 8)) & 0xFF)

Using IP address.

Referenced by resolve_cb().

int iot_tls_connect	(	Network *	pNetwork,
		TLSConnectParams	params
	)

TLS connection functionality.

Create a TLS socket and open the connection.

Parameters

[in]	pNetwork	Network interface.
[in]	params	connection parameters for TLS.

Returns: Status.

References _htons, AF_INET, close(), connect(), TLSConnectParams::DestinationPort, DNS_REQUEST, err, gethostbyname(), gu32HostIp, Network::my_socket, NONE_ERROR, TLSConnectParams::pDestinationURL, in_addr::s_addr, sockaddr_in::sin_addr, sockaddr_in::sin_family, sockaddr_in::sin_port, SOCK_STREAM, socket(), SOCKET_FLAGS_SSL, SOCKET_MSG_CONNECT, SSL_CONNECT_ERROR, TCP_CONNECT_ERROR, and wait_for_event().

Referenced by iot_tls_init().

int iot_tls_destroy ( Network * pNetwork )

TLS interface de-init function.

Perform any tear-down or cleanup of TLS layer.

Parameters

[in] pNetwork Network interface.

Returns: Status.

References Network::disconnect, Network::mqttread, Network::mqttwrite, Network::my_socket, NONE_ERROR, NULL, and NULL_VALUE_ERROR.

Referenced by iot_tls_init().

void iot_tls_disconnect ( Network * pNetwork )

TLS disconnect function.

Disconnect from network socket.

Parameters

[in] pNetwork Network interface.

Returns: None.

References close(), Network::my_socket, and NULL.

Referenced by iot_tls_init().

int iot_tls_init ( Network * pNetwork )

Intialization of network interface for TLS function.

Initialize the TLS implementation.

Parameters

[in] pNetwork Network interface.

Returns: Error status.

References Network::connect, Network::destroy, Network::disconnect, iot_tls_connect(), iot_tls_destroy(), iot_tls_disconnect(), iot_tls_is_connected(), iot_tls_read(), iot_tls_write(), Network::isConnected, Network::mqttread, Network::mqttwrite, Network::my_socket, NONE_ERROR, NULL, NULL_VALUE_ERROR, registerSocketCallback(), resolve_cb(), socket_cb(), and socketInit().

Referenced by aws_iot_mqtt_connect().

int iot_tls_is_connected ( Network * pNetwork )

TLS connection status call.

Check if TLS layer is still connected.

Parameters

[in] pNetwork Network interface.

Returns: Status.

Referenced by iot_tls_init().

int iot_tls_read	(	Network *	,
		unsigned char *	,
		int	,
		int
	)

Read bytes from the network socket.

Parameters

Network	- Pointer to a Network struct defining the network interface.
unsigned	char pointer - pointer to buffer where read bytes should be copied
integer	- number of bytes to read
integer	- read timeout value in milliseconds