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/*******************************************************************************
* Copyright (C) ST-Ericsson SA 2011
* License terms: 3-clause BSD license
******************************************************************************/
/**
* @addtogroup ldr_communication_serv
* @{
* @addtogroup protrom_family
* @{
* @addtogroup ldr_transport_layer
* @{
*/
/*******************************************************************************
* Includes
******************************************************************************/
#include <stdlib.h>
#include <string.h>
#include "c_system.h"
#include "t_basicdefinitions.h"
#include "r_debug.h"
#include "r_debug_macro.h"
#include "r_protrom_family.h"
#include "r_protrom_header.h"
#include "r_protrom_transport.h"
#include "r_protrom_network.h"
#include "r_protrom_protocol.h"
#include "r_communication_service.h"
#include "t_security_algorithms.h"
#include "r_memmory_utils.h"
/*******************************************************************************
* Declaration of file local functions
******************************************************************************/
static void Protrom_Transport_OutHashCallback(const void *const Data_p, uint32 Length, const uint8 *const Hash_p, void *Param_p);
/*******************************************************************************
* File scope types, constants and variables
******************************************************************************/
/*******************************************************************************
* Definition of external functions
******************************************************************************/
/*
* Handles all registered TL processes for PROTROM protocol family.
*
* @param [in] Communication_p Communication module context.
*
* @retval E_SUCCESS After successful execution.
*/
ErrorCode_e Protrom_Transport_Poll(Communication_t *Communication_p)
{
ErrorCode_e ReturnValue = E_SUCCESS;
Protrom_Packet_t *Packet_p = NULL;
Protrom_Network_ReceiverHandler(Communication_p);
Packet_p = (Protrom_Packet_t *)QUEUE(Communication_p, FifoDequeue_Fn)(OBJECT_QUEUE(Communication_p), Communication_p->Inbound_p);
if (NULL == Packet_p) {
return E_ALLOCATE_FAILED;
}
ReturnValue = Protrom_Process(Communication_p, Packet_p);
return ReturnValue;
}
/*
* Function for sending packet in PROTROM protocol family.
*
* @param [in] Communication_p Communication module context.
* @param [in] InputDataIn_p Pointer to the input data.
*
* @retval E_SUCCESS After successful execution.
* @retval E_FAILED_TO_ALLOCATE_COMM_BUFFER Failed to allocate communication
* buffer.
*/
ErrorCode_e Protrom_Transport_Send(Communication_t *Communication_p, void *InputDataIn_p)
{
Protrom_Packet_t *Packet_p = NULL;
Protrom_SendData_LP_t *InputData_p = (Protrom_SendData_LP_t *)InputDataIn_p;
Packet_p = (Protrom_Packet_t *) malloc(sizeof(Protrom_Packet_t));
if (NULL == Packet_p) {
return E_ALLOCATE_FAILED;
}
Packet_p->Header = *InputData_p->Header_p;
Packet_p->Buffer_p = (uint8 *)malloc(Packet_p->Header.PayloadLength + PROTROM_HEADER_LENGTH + PROTROM_CRC_LENGTH);
if (NULL == Packet_p->Buffer_p) {
BUFFER_FREE(Packet_p);
return E_ALLOCATE_FAILED;
}
Protrom_SerializeHeader(Packet_p->Buffer_p, &Packet_p->Header);
if (NULL != InputData_p->Payload_p) {
/* setup payload for calculation */
memcpy(Packet_p->Buffer_p + PROTROM_HEADER_LENGTH, InputData_p->Payload_p, Packet_p->Header.PayloadLength);
/* Calculate Payload CRC */
Packet_p->Communication_p = Communication_p;
Communication_p->HashDevice_p->Calculate(OBJECT_HASH(Communication_p), Communication_p->CurrentFamilyHash,
Packet_p->Buffer_p, Packet_p->Header.PayloadLength + PROTROM_HEADER_LENGTH,
(uint8 *)&Packet_p->CRC, (HashCallback_t)Protrom_Transport_OutHashCallback,
(void *) Packet_p);
} else {
//@todo error no payload
}
/* The packet's buffer and the packet resources are
* freed in the send callback function */
/* coverity[leaked_storage] */
return E_SUCCESS;
}
/*******************************************************************************
* Definition of internal functions
******************************************************************************/
/*
* Callback function for handling calculated data.
*
* @param [in] Data_p Pointer to the data buffer for calculation.
* @param [in] Length Length of the data for calculation.
* @param [out] Hash_p Pointer to buffer with calculated hash.
* @param [in] Param_p Pointer to extra parameters.
*
* @return none.
*/
static void Protrom_Transport_OutHashCallback(const void *const Data_p, uint32 Length, const uint8 *const Hash_p, void *Param_p)
{
Protrom_Packet_t *Packet_p = (Protrom_Packet_t *)Param_p;
memcpy(&Packet_p->CRC, Hash_p, sizeof(uint16));
memcpy((uint8 *)((Packet_p->Buffer_p) + PROTROM_HEADER_LENGTH + (Packet_p->Header.PayloadLength)), Hash_p, sizeof(uint16));
Protrom_SerializeHeader(Packet_p->Buffer_p, &Packet_p->Header);
(void)QUEUE(Packet_p->Communication_p, FifoEnqueue_Fn)(OBJECT_QUEUE(Packet_p->Communication_p), Packet_p->Communication_p->Outbound_p, Packet_p);
}
/** @} */
/** @} */
/** @} */
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