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/*
* Amazon FreeRTOS Secure Sockets V1.1.5
* Copyright (C) 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* http://aws.amazon.com/freertos
* http://www.FreeRTOS.org
*/
/* Define _SECURE_SOCKETS_WRAPPER_NOT_REDEFINE to prevent secure sockets functions
* from redefining in iot_secure_sockets_wrapper_metrics.h */
#define _SECURE_SOCKETS_WRAPPER_NOT_REDEFINE
/* FreeRTOS includes. */
#include "FreeRTOS.h"
#include "FreeRTOSIPConfig.h"
#include "list.h"
#include "semphr.h"
#include "FreeRTOS_IP.h"
#include "FreeRTOS_Sockets.h"
#include "iot_secure_sockets.h"
#include "task.h"
#undef _SECURE_SOCKETS_WRAPPER_NOT_REDEFINE
/* Internal context structure. */
typedef struct SSOCKETContext
{
Socket_t xSocket;
char * pcDestination;
BaseType_t xSendFlags;
BaseType_t xRecvFlags;
BaseType_t xConnectAttempted;
} SSOCKETContext_t, * SSOCKETContextPtr_t;
/*
* Helper routines.
*/
/*
* @brief Network send callback.
*/
static BaseType_t prvNetworkSend( void * pvContext,
const unsigned char * pucData,
size_t xDataLength )
{
SSOCKETContextPtr_t pxContext = ( SSOCKETContextPtr_t ) pvContext; /*lint !e9087 cast used for portability. */
return FreeRTOS_send( pxContext->xSocket, pucData, xDataLength, pxContext->xSendFlags );
}
/*-----------------------------------------------------------*/
/*
* @brief Network receive callback.
*/
static BaseType_t prvNetworkRecv( void * pvContext,
unsigned char * pucReceiveBuffer,
size_t xReceiveLength )
{
SSOCKETContextPtr_t pxContext = ( SSOCKETContextPtr_t ) pvContext; /*lint !e9087 cast used for portability. */
return FreeRTOS_recv( pxContext->xSocket, pucReceiveBuffer, xReceiveLength, pxContext->xRecvFlags );
}
/*-----------------------------------------------------------*/
/*
* Interface routines.
*/
int32_t SOCKETS_Close( Socket_t xSocket )
{
SSOCKETContextPtr_t pxContext = ( SSOCKETContextPtr_t ) xSocket; /*lint !e9087 cast used for portability. */
int32_t lReturn;
if( ( xSocket != SOCKETS_INVALID_SOCKET ) && ( NULL != pxContext ) )
{
/* Clean-up destination string. */
if( NULL != pxContext->pcDestination )
{
vPortFree( pxContext->pcDestination );
}
/* Close the underlying socket handle. */
( void ) FreeRTOS_closesocket( pxContext->xSocket );
/* Free the context. */
vPortFree( pxContext );
lReturn = SOCKETS_ERROR_NONE;
}
else
{
lReturn = SOCKETS_EINVAL;
}
return lReturn;
}
/*-----------------------------------------------------------*/
int32_t SOCKETS_Connect( Socket_t xSocket,
SocketsSockaddr_t * pxAddress,
Socklen_t xAddressLength )
{
int32_t lStatus = SOCKETS_ERROR_NONE;
SSOCKETContextPtr_t pxContext = ( SSOCKETContextPtr_t ) xSocket; /*lint !e9087 cast used for portability. */
struct freertos_sockaddr xTempAddress = { 0 };
if( ( pxContext != SOCKETS_INVALID_SOCKET ) && ( pxAddress != NULL ) )
{
/* A connection was attempted. If this function fails, then the socket is invalid and the user
* must call SOCKETS_Close(), on this socket, and SOCKETS_Socket() to get a new socket. */
pxContext->xConnectAttempted = pdTRUE;
/* Connect the wrapped socket. */
xTempAddress.sin_addr = pxAddress->ulAddress;
xTempAddress.sin_family = pxAddress->ucSocketDomain;
xTempAddress.sin_len = ( uint8_t ) sizeof( xTempAddress );
xTempAddress.sin_port = pxAddress->usPort;
lStatus = FreeRTOS_connect( pxContext->xSocket, &xTempAddress, xAddressLength );
}
else
{
lStatus = SOCKETS_SOCKET_ERROR;
}
return lStatus;
}
/*-----------------------------------------------------------*/
uint32_t SOCKETS_GetHostByName( const char * pcHostName )
{
return FreeRTOS_gethostbyname( pcHostName );
}
/*-----------------------------------------------------------*/
int32_t SOCKETS_Recv( Socket_t xSocket,
void * pvBuffer,
size_t xBufferLength,
uint32_t ulFlags )
{
int32_t lStatus = SOCKETS_SOCKET_ERROR;
SSOCKETContextPtr_t pxContext = ( SSOCKETContextPtr_t ) xSocket; /*lint !e9087 cast used for portability. */
if( ( xSocket != SOCKETS_INVALID_SOCKET ) &&
( pvBuffer != NULL ) )
{
pxContext->xRecvFlags = ( BaseType_t ) ulFlags;
/* Receive unencrypted. */
lStatus = prvNetworkRecv( pxContext, pvBuffer, xBufferLength );
}
else
{
lStatus = SOCKETS_EINVAL;
}
return lStatus;
}
/*-----------------------------------------------------------*/
int32_t SOCKETS_Send( Socket_t xSocket,
const void * pvBuffer,
size_t xDataLength,
uint32_t ulFlags )
{
int32_t lStatus = SOCKETS_SOCKET_ERROR;
SSOCKETContextPtr_t pxContext = ( SSOCKETContextPtr_t ) xSocket; /*lint !e9087 cast used for portability. */
if( ( xSocket != SOCKETS_INVALID_SOCKET ) &&
( pvBuffer != NULL ) )
{
pxContext->xSendFlags = ( BaseType_t ) ulFlags;
/* Send unencrypted. */
lStatus = prvNetworkSend( pxContext, pvBuffer, xDataLength );
}
else
{
lStatus = SOCKETS_EINVAL;
}
return lStatus;
}
/*-----------------------------------------------------------*/
int32_t SOCKETS_SetSockOpt( Socket_t xSocket,
int32_t lLevel,
int32_t lOptionName,
const void * pvOptionValue,
size_t xOptionLength )
{
int32_t lStatus = SOCKETS_ERROR_NONE;
TickType_t xTimeout;
SSOCKETContextPtr_t pxContext = ( SSOCKETContextPtr_t ) xSocket; /*lint !e9087 cast used for portability. */
if( ( xSocket != SOCKETS_INVALID_SOCKET ) && ( xSocket != NULL ) )
{
switch( lOptionName )
{
case SOCKETS_SO_NONBLOCK:
xTimeout = 0;
/* Non-blocking connect is not supported. Socket may be set to nonblocking
* only after a connection is made. */
if( pdTRUE == pxContext->xConnectAttempted )
{
lStatus = FreeRTOS_setsockopt( pxContext->xSocket,
lLevel,
SOCKETS_SO_RCVTIMEO,
&xTimeout,
sizeof( xTimeout ) );
if( lStatus == SOCKETS_ERROR_NONE )
{
lStatus = FreeRTOS_setsockopt( pxContext->xSocket,
lLevel,
SOCKETS_SO_SNDTIMEO,
&xTimeout,
sizeof( xTimeout ) );
}
}
else
{
lStatus = SOCKETS_EISCONN;
}
break;
case SOCKETS_SO_RCVTIMEO:
case SOCKETS_SO_SNDTIMEO:
/* Comply with Berkeley standard - a 0 timeout is wait forever. */
xTimeout = *( ( const TickType_t * ) pvOptionValue ); /*lint !e9087 pvOptionValue passed should be of TickType_t */
if( xTimeout == 0U )
{
xTimeout = portMAX_DELAY;
}
lStatus = FreeRTOS_setsockopt( pxContext->xSocket,
lLevel,
lOptionName,
&xTimeout,
xOptionLength );
break;
default:
lStatus = FreeRTOS_setsockopt( pxContext->xSocket,
lLevel,
lOptionName,
pvOptionValue,
xOptionLength );
break;
}
}
else
{
lStatus = SOCKETS_EINVAL;
}
return lStatus;
}
/*-----------------------------------------------------------*/
int32_t SOCKETS_Shutdown( Socket_t xSocket,
uint32_t ulHow )
{
int32_t lReturn;
SSOCKETContextPtr_t pxContext = ( SSOCKETContextPtr_t ) xSocket; /*lint !e9087 cast used for portability. */
if( ( xSocket != SOCKETS_INVALID_SOCKET ) && ( xSocket != NULL ) )
{
lReturn = FreeRTOS_shutdown( pxContext->xSocket, ( BaseType_t ) ulHow );
}
else
{
lReturn = SOCKETS_EINVAL;
}
return lReturn;
}
/*-----------------------------------------------------------*/
Socket_t SOCKETS_Socket( int32_t lDomain,
int32_t lType,
int32_t lProtocol )
{
SSOCKETContextPtr_t pxContext = NULL;
Socket_t xSocket;
/* Ensure that only supported values are supplied. */
configASSERT( lDomain == SOCKETS_AF_INET );
configASSERT( lType == SOCKETS_SOCK_STREAM );
configASSERT( lProtocol == SOCKETS_IPPROTO_TCP );
/* Create the wrapped socket. */
xSocket = FreeRTOS_socket( lDomain, lType, lProtocol );
if( xSocket != FREERTOS_INVALID_SOCKET )
{
/* Allocate the internal context structure. */
if( NULL == ( pxContext = pvPortMalloc( sizeof( SSOCKETContext_t ) ) ) )
{
/* Need to close socket. */
( void ) FreeRTOS_closesocket( xSocket );
pxContext = SOCKETS_INVALID_SOCKET;
}
else
{
memset( pxContext, 0, sizeof( SSOCKETContext_t ) );
pxContext->xSocket = xSocket;
}
}
else
{
pxContext = SOCKETS_INVALID_SOCKET;
}
return pxContext;
}
/*-----------------------------------------------------------*/
BaseType_t SOCKETS_Init( void )
{
/* Empty initialization for this port. */
return pdPASS;
}
/*-----------------------------------------------------------*/
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