rtxPcapFile.h

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/*
 * Copyright (c) 2019-2022 Objective Systems, Inc.
 *
 * This software is furnished under a license and may be used and copied
 * only in accordance with the terms of such license and with the
 * inclusion of the above copyright notice. This software or any other
 * copies thereof may not be provided or otherwise made available to any
 * other person. No title to and ownership of the software is hereby
 * transferred.
 *
 * The information in this software is subject to change without notice
 * and should not be construed as a commitment by Objective Systems, Inc.
 *
 * PROPRIETARY NOTICE
 *
 * This software is an unpublished work subject to a confidentiality agreement
 * and is protected by copyright and trade secret law.  Unauthorized copying,
 * redistribution or other use of this work is prohibited.
 *
 * The above notice of copyright on this source code product does not indicate
 * any actual or intended publication of such source code.
 *
 *****************************************************************************/
#ifndef _RTXPCAPFILE_H_
#define _RTXPCAPFILE_H_

#include "rtxsrc/rtxContext.h"

typedef struct pcap_hdr_s {
   OSOCTET magic_number[4]; /* magic number */
   OSUINT16 version_major;  /* major version number */
   OSUINT16 version_minor;  /* minor version number */
   OSINT32  thiszone;       /* GMT to local correction */
   OSUINT32 sigfigs;        /* accuracy of timestamps */
   OSUINT32 snaplen;        /* max length of captured packets, in octets */
   OSUINT32 network;        /* data link type */
} pcap_hdr_t;

typedef struct pcaprec_hdr_s {
   OSUINT32 ts_sec;         /* timestamp seconds */
   OSUINT32 ts_usec;        /* timestamp microseconds */
   OSUINT32 incl_len;       /* number of octets of packet saved in file */
   OSUINT32 orig_len;       /* actual length of packet */
} pcaprec_hdr_t;

typedef struct ether_header_s {
   OSUINT8 ether_dhost[6];  /* destination host MAC address */
   OSUINT8 ether_shost[6];  /* source host MAC address */
   OSUINT16 ether_type;
} ether_header_t;

#ifdef __cplusplus
extern "C" {
#endif

EXTERNRT int rtxDecPcapHdr
(OSCTXT* pctxt, pcap_hdr_t* pPcapHdr, OSBOOL* pswapped);

EXTERNRT int rtxDecPcapRecHdr
(OSCTXT* pctxt, pcaprec_hdr_t* pPcapRecHdr, OSBOOL swapped);

EXTERNRT int rtxDecEtherHdr
(OSCTXT* pctxt, ether_header_t* pEtherHdr, OSBOOL swapped);

EXTERNRT void rtxPrintPcapHdr(const pcap_hdr_t* pPcapHdr);

EXTERNRT void rtxPrintPcapRecHdr(const pcaprec_hdr_t* pPcapRecHdr);

#ifdef __cplusplus
}
#endif

#endif