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git-svn-id: https://svn.code.sf.net/p/openv2g/code/trunk@33 d9f2db14-54d0-4bde-b00c-16405c910529

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sebastiankb 2010-12-22 14:39:48 +00:00
parent 7f2adb89ed
commit f17cd9c1b5
2 changed files with 0 additions and 185 deletions
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117
src/transport/doIP.c
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@ -1,117 +0,0 @@
/*
* Copyright (C) 2007-2010 Siemens AG
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*******************************************************************
*
* @author Sebastian.Kaebisch.EXT@siemens.com
* @version 0.3
* @contact Joerg.Heuer@siemens.com
*
********************************************************************/
/*
* This file implements the DoIP header writer and reader.
* Note: Not all functions are implemented yet.
*
*/
#include <stdint.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdio.h>
#include <math.h>
#include <string.h>
#include "doIP.h"
int write_doIPNack(uint8_t* outStream, uint32_t* outStreamLength, uint8_t nackCode)
{
/* if(outStreamLength<DOIP_HEADER_LENGTH+1)
return -1;*/
/* payload length=1 and nack payload type*/
*outStreamLength = 1;
write_doIPHeader(outStream,outStreamLength, DOIP_NEGATIVE_ACKNOWLEDGE);
outStream[8]=nackCode;
return 0;
}
int write_doIPHeader(uint8_t* outStream, uint32_t* outStreamLength, uint16_t payloadType)
{
/* write DoIP version number 1=byte */
outStream[0]=DOIP_VERSION;
/* write inverse DoIP version */
outStream[1]=DOIP_VERSION_INV;
/* write payload type */
outStream[2] = (uint8_t)(payloadType & 0xFF);
outStream[3] = (uint8_t)(payloadType >> 8 & 0xFF);
/* write payload length */
outStream[4] = (uint8_t)(*outStreamLength & 0xFF);
outStream[5] = (uint8_t)(*outStreamLength>>8 & 0xFF);
outStream[6] = (uint8_t)(*outStreamLength>>16 & 0xFF);
outStream[7] = (uint8_t)(*outStreamLength>>24 & 0xFF);
/* here, the outStream length have to be resized by the DoIP offset*/
*outStreamLength += DOIP_HEADER_LENGTH;
return 0;
}
int read_doIPHeader(uint8_t* inStream, size_t inStreamLength, uint32_t* payloadLength)
{
uint16_t payloadType=0;
/* check, if we support this DoIP version */
if(inStream[0]!=DOIP_VERSION && inStream[1]!=DOIP_VERSION_INV)
return DOIP_INCORRECT_PATTERN_FORMAT;
/* check, if we support this payload type*/
payloadType = inStream[3];
payloadType = (payloadType << 8 | inStream[2]);
if(payloadType != DOIP_EXI_TYPE && payloadType != DOIP_NEGATIVE_ACKNOWLEDGE)
return DOIP_UNKNOWN_PAYLOAD_TYPE;
/* determine payload length*/
*payloadLength = inStream[7];
*payloadLength = (*payloadLength << 8 | inStream[6]);
*payloadLength = (*payloadLength << 16 | inStream[5]);
*payloadLength = (*payloadLength << 24 | inStream[4]);
if((*payloadLength+DOIP_HEADER_LENGTH)!=inStreamLength)
return DOIP_INVALID_PAYLOAD_LENGTH;
/* if payload is a NACK read its NACK code and return it*/
/* TODO: should be handled by an extra method */
if(payloadType == DOIP_NEGATIVE_ACKNOWLEDGE)
return inStream[8];
return 0;
}

68
src/transport/doIP.h
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/*
* Copyright (C) 2007-2010 Siemens AG
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*******************************************************************
*
* @author Sebastian.Kaebisch.EXT@siemens.com
* @version 0.3
* @contact Joerg.Heuer@siemens.com
*
********************************************************************/
#ifdef __cplusplus
extern "C" {
#endif
#ifndef DOIP_H_
#define DOIP_H_
/* generic DoIP header length */
#define DOIP_HEADER_LENGTH 8
/* define DoIP Version */
#define DOIP_VERSION 0x01
#define DOIP_VERSION_INV 0xFE
/* define DoIP payload types*/
#define DOIP_NEGATIVE_ACKNOWLEDGE 0x0000
#define DOIP_EXI_TYPE 0xC350 /* == 50000 */
/* Generic DoIP Header NACK codes */
#define DOIP_INCORRECT_PATTERN_FORMAT 0x00
#define DOIP_UNKNOWN_PAYLOAD_TYPE 0x01
#define DOIP_MESSAGE_TOO_LARGE 0x02
#define DOIP_OUT_OF_MEMORY 0x03
#define DOIP_INVALID_PAYLOAD_LENGTH 0x04
/* EXI NACK code */
#define DOIP_INVALID_EXI_MESSAGE 0x05
/* DoIP methods */
int write_doIPNack(uint8_t* outStream, uint32_t* outStreamLength, uint8_t nackCode);
int write_doIPHeader(uint8_t* outStream, uint32_t* outStreamLength, uint16_t payloadType);
int read_doIPHeader(uint8_t* inStream, size_t inStreamLength, uint32_t* payloadLength);
#endif /* DOIP_H_ */
#ifdef __cplusplus
}
#endif