/*
 *  Copyright (c) 2017, Peter Haag
 *  Copyright (c) 2016, Peter Haag
 *  Copyright (c) 2014, Peter Haag
 *  Copyright (c) 2009, Peter Haag
 *  Copyright (c) 2004-2008, SWITCH - Teleinformatikdienste fuer Lehre und Forschung
 *  All rights reserved.
 *  
 *  Redistribution and use in source and binary forms, with or without 
 *  modification, are permitted provided that the following conditions are met:
 *  
 *   * Redistributions of source code must retain the above copyright notice, 
 *     this list of conditions and the following disclaimer.
 *   * Redistributions in binary form must reproduce the above copyright notice, 
 *     this list of conditions and the following disclaimer in the documentation 
 *     and/or other materials provided with the distribution.
 *   * Neither the name of the author nor the names of its contributors may be 
 *     used to endorse or promote products derived from this software without 
 *     specific prior written permission.
 *  
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
 *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
 *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
 *  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
 *  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
 *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
 *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
 *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
 *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
 *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
 *  POSSIBILITY OF SUCH DAMAGE.
 *  
 */

#ifndef _NETFLOW_V1_H
#define _NETFLOW_V1_H 1

#include "config.h"

#include <sys/types.h>
#ifdef HAVE_STDINT_H
#include <stdint.h>
#endif

#include "collector.h"

#define NETFLOW_V1_HEADER_LENGTH 16
#define NETFLOW_V1_RECORD_LENGTH 48
#define NETFLOW_V1_MAX_RECORDS   24

/* v1 structures */
typedef struct netflow_v1_header {
  uint16_t  version;
  uint16_t  count;
  uint32_t  SysUptime;
  uint32_t  unix_secs;
  uint32_t  unix_nsecs;
} netflow_v1_header_t;

typedef struct netflow_v1_record {
  uint32_t  srcaddr;
  uint32_t  dstaddr;
  uint32_t  nexthop;
  uint16_t  input;
  uint16_t  output;
  uint32_t  dPkts;
  uint32_t  dOctets;
  uint32_t  First;
  uint32_t  Last;
  uint16_t  srcport;
  uint16_t  dstport;
  uint16_t  pad1;
  uint8_t   prot;
  uint8_t   tos;
  uint8_t   tcp_flags;
  uint8_t   pad2[7];
} netflow_v1_record_t;


/* prototypes */
int Init_v1(void);

void Process_v1(void *in_buff, ssize_t in_buff_cnt, FlowSource_t *fs);

/*
 * Extension map for v1
 *
 * Required extensions:
 *
 *       4 byte byte counter
 *       | 4byte packet counter
 *       | | IPv4 
 *       | | |
 * xxxx x0 0 0
 *
 * Optional extensions:
 *
 * 4	: 2 byte input/output interface id
 * 9	: IPv4 next hop
 */

#endif //_NETFLOW_V1_H