/*
 * Copyright (c) 2016-2022, OARC, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. 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.
 *
 * 3. Neither the name of the copyright holder 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 HOLDER 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.
 */

#include "dnscap.h"

#ifndef __dnscap_network_h
#define __dnscap_network_h

tcpstate_ptr tcpstate_find(iaddr from, iaddr to, unsigned sport, unsigned dport, time_t t);
tcpstate_ptr tcpstate_new(iaddr from, iaddr to, unsigned sport, unsigned dport);
void         dl_pkt(u_char* user, const struct pcap_pkthdr* hdr, const u_char* pkt, const char* name, const int dlt);
void         discard(tcpstate_ptr tcpstate, const char* msg);
void         network_pkt(const char* descr, my_bpftimeval ts, unsigned pf, const u_char* opkt, size_t olen);
uint16_t     in_checksum(const u_char* ptr, size_t len);

void layer_pkt(u_char* user, const pcap_thread_packet_t* packet, const u_char* payload, size_t length);
void network_pkt2(const char* descr, my_bpftimeval ts, const pcap_thread_packet_t* packet, const u_char* payload, size_t length);

size_t calcdnslen(const u_char* dnspkt, size_t dnslen);

#endif /* __dnscap_network_h */
