AliOS Things API SSL Guide

API INDEX

• 1 mbedtls_ssl_connect
• 2 mbedtls_ssl_send
• 3 mbedtls_ssl_recv
• 4 mbedtls_ssl_close

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1-mbedtls_ssl_connect

void *mbedtls_ssl_connect(void *tcp_fd, const char *ca_cert, int ca_cert_len)

• Description

  Create a ssl connect.

• Parameters

  IN/OUT	NAME	DESC
  [in]	tcp_fd	handle of the tcp socket.
  [in]	ca_cert	CA.
  [in]	ca_cert_len	length of the CA.

• Returns

  NULL: error; ssl_param: success.

2-mbedtls_ssl_send

int mbedtls_ssl_send(void *ssl, const char *buffer, int length)

• Description

  Send data through ssl.

• Parameters

  IN/OUT	NAME	DESC
  [in]	ssl	handle of the ssl.
  [in]	buffer	data to send.
  [in]	length	length of the data.

• Returns

  -1: error; others: length of the data be sended.

3-mbedtls_ssl_recv

int mbedtls_ssl_recv(void *ssl, char *buffer, int length)

• Description

  Recv data through ssl.

• Parameters

  IN/OUT	NAME	DESC
  [in]	ssl	handle of the ssl.
  [in]	buffer	buffer to recv data.
  [in]	length	the max size of the buffer.

• Returns

  -1: error; 0: EOF; others: length of the data be sended.

4-mbedtls_ssl_close

int mbedtls_ssl_close(void *ssl)

• Description

  Close the ssl.

• Parameters

  IN/OUT	NAME	DESC
  [in]	ssl	handle to be closed.

• Returns

  0: success.