TlsContext *tlsInit(void)
{
TlsContext *context;
//Allocate a memory buffer to hold the TLS context
context = osAllocMem(sizeof(TlsContext));
//Failed to allocate memory
if(!context) return NULL;
//Clear TLS context
memset(context, 0, sizeof(TlsContext));
//Reference to the underlying socket
#if (TLS_BSD_SOCKET_SUPPORT == ENABLED)
context->socket = -1;
#else
context->socket = NULL;
#endif
//Default operation mode
context->entity = TLS_CONNECTION_END_CLIENT;
//Default TLS version
context->version = TLS_MIN_VERSION;
//Default client authentication mode
context->clientAuthMode = TLS_CLIENT_AUTH_NONE;
//Initialize Diffie-Hellman context
dhInit(&context->dhContext);
//Initialize ECDH context
ecdhInit(&context->ecdhContext);
//Initialize peer's RSA public key
rsaInitPublicKey(&context->peerRsaPublicKey);
//Initialize peer's DSA public key
dsaInitPublicKey(&context->peerDsaPublicKey);
//Initialize peer's EC domain parameters
ecInitDomainParameters(&context->peerEcParams);
//Initialize peer's EC public key
ecInit(&context->peerEcPublicKey);
//Allocate send and receive buffers
context->txBuffer = osAllocMem(TLS_TX_BUFFER_SIZE);
context->rxBuffer = osAllocMem(TLS_RX_BUFFER_SIZE);
//Failed to allocate memory?
if(!context->txBuffer || !context->rxBuffer)
{
//Free previously allocated memory
osFreeMem(context->txBuffer);
osFreeMem(context->rxBuffer);
osFreeMem(context);
//Report an error
return NULL;
}
//Clear send and receive buffers
memset(context->txBuffer, 0, TLS_TX_BUFFER_SIZE);
memset(context->rxBuffer, 0, TLS_RX_BUFFER_SIZE);
//Return a handle to the freshly created TLS context
return context;
}
TlsContext *tlsInit(void)
{
TlsContext *context;
//Allocate a memory buffer to hold the TLS context
context = osMemAlloc(sizeof(TlsContext));
//Failed to allocate memory
if(!context) return NULL;
//Clear TLS context
memset(context, 0, sizeof(TlsContext));
//Reference to the underlying socket
#if (TLS_BSD_SOCKET_SUPPORT == ENABLED)
context->socket = SOCKET_ERROR;
#else
context->socket = NULL;
#endif
//Default operation mode
context->entity = TLS_CONNECTION_END_CLIENT;
//Default TLS version
context->version = TLS_MIN_VERSION;
//Default client authentication mode
context->clientAuthMode = TLS_CLIENT_AUTH_NONE;
//Initialize multiple precision integers
dhInitParameters(&context->dhParameters);
rsaInitPublicKey(&context->peerRsaPublicKey);
dsaInitPublicKey(&context->peerDsaPublicKey);
//Allocate send and receive buffers
context->txBuffer = osMemAlloc(TLS_TX_BUFFER_SIZE);
context->rxBuffer = osMemAlloc(TLS_RX_BUFFER_SIZE);
//Failed to allocate memory?
if(!context->txBuffer || !context->rxBuffer)
{
//Free previously allocated memory
osMemFree(context->txBuffer);
osMemFree(context->rxBuffer);
osMemFree(context);
//Report an error
return NULL;
}
//Clear send and receive buffers
memset(context->txBuffer, 0, TLS_TX_BUFFER_SIZE);
memset(context->rxBuffer, 0, TLS_RX_BUFFER_SIZE);
//Return a handle to the freshly created TLS context
return context;
}
