/* -*- mode: c; c-file-style: "openbsd" -*- */

/*

 * Copyright (c) 2015 Vincent Bernat <bernat@luffy.cx>

 *

 * Permission to use, copy, modify, and/or distribute this software for any

 * purpose with or without fee is hereby granted, provided that the above

 * copyright notice and this permission notice appear in all copies.

 *

 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES

 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF

 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR

 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES

 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN

 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF

 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

 */

#ifndef _COMMON_H

#define _COMMON_H

#include "check-compat.h"

#include "../src/daemon/lldpd.h"

/* See:

 * http://wiki.wireshark.org/Development/LibpcapFileFormat

 */

struct pcap_hdr {

        u_int32_t magic_number;   /* magic number */

        u_int16_t version_major;  /* major version number */

        u_int16_t version_minor;  /* minor version number */

        u_int32_t thiszone;       /* GMT to local correction */

        u_int32_t sigfigs;        /* accuracy of timestamps */

        u_int32_t snaplen;        /* max length of captured packets, in octets */

        u_int32_t network;        /* data link type */

};

struct pcaprec_hdr {

	u_int32_t ts_sec;         /* timestamp seconds */

        u_int32_t ts_usec;        /* timestamp microseconds */

        u_int32_t incl_len;       /* number of octets of packet saved in file */

        u_int32_t orig_len;       /* actual length of packet */

};

struct packet {

	TAILQ_ENTRY(packet) next;

	int size;

	char data[];

};

TAILQ_HEAD(pkts_t, packet);

extern int dump;		/* Dump file descriptor in pcap format */

extern char filenameprefix[];	/* Prefix for filename dumping */

extern char *filename;		/* Filename we are dumping to */

extern char macaddress[];	  /* MAC address we use to send */

extern struct pkts_t pkts; /* List of sent packets */

extern struct lldpd_hardware hardware;

extern struct lldpd_chassis chassis;

int pcap_send(struct lldpd *, struct lldpd_hardware *, char *, size_t);

void pcap_setup();

void pcap_teardown();

#endif