2025-02-08 11:57:11 +01:00
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/*
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2025-02-08 12:06:41 +01:00
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* Copyright (c) 2016-2023, OARC, Inc.
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2025-02-08 11:57:11 +01:00
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "dnscap.h"
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#ifndef __dnscap_network_h
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#define __dnscap_network_h
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tcpstate_ptr tcpstate_find(iaddr from, iaddr to, unsigned sport, unsigned dport, time_t t);
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tcpstate_ptr tcpstate_new(iaddr from, iaddr to, unsigned sport, unsigned dport);
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void dl_pkt(u_char* user, const struct pcap_pkthdr* hdr, const u_char* pkt, const char* name, const int dlt);
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void discard(tcpstate_ptr tcpstate, const char* msg);
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void network_pkt(const char* descr, my_bpftimeval ts, unsigned pf, const u_char* opkt, size_t olen);
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uint16_t in_checksum(const u_char* ptr, size_t len);
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void layer_pkt(u_char* user, const pcap_thread_packet_t* packet, const u_char* payload, size_t length);
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void network_pkt2(const char* descr, my_bpftimeval ts, const pcap_thread_packet_t* packet, const u_char* payload, size_t length);
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size_t calcdnslen(const u_char* dnspkt, size_t dnslen);
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#endif /* __dnscap_network_h */
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