libtins 4.5
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pdu_helpers.h
1/*
2 * Copyright (c) 2017, Matias Fontanini
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met:
8 *
9 * * Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * * Redistributions in binary form must reproduce the above
12 * copyright notice, this list of conditions and the following disclaimer
13 * in the documentation and/or other materials provided with the
14 * distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 */
29
30#ifndef TINS_PDU_HELPERS_H
31#define TINS_PDU_HELPERS_H
32
33#include <tins/constants.h>
34#include <tins/config.h>
35#include <tins/pdu.h>
36
41namespace Tins {
42namespace Internals {
43
44PDU* pdu_from_flag(Constants::Ethernet::e flag, const uint8_t* buffer,
45 uint32_t size, bool rawpdu_on_no_match = true);
46PDU* pdu_from_flag(Constants::IP::e flag, const uint8_t* buffer,
47 uint32_t size, bool rawpdu_on_no_match = true);
48#ifdef TINS_HAVE_PCAP
49PDU* pdu_from_dlt_flag(int flag, const uint8_t* buffer,
50 uint32_t size, bool rawpdu_on_no_match = true);
51#endif // TINS_HAVE_PCAP
52PDU* pdu_from_flag(PDU::PDUType type, const uint8_t* buffer, uint32_t size);
53
54Constants::Ethernet::e pdu_flag_to_ether_type(PDU::PDUType flag);
55PDU::PDUType ether_type_to_pdu_flag(Constants::Ethernet::e flag);
56Constants::IP::e pdu_flag_to_ip_type(PDU::PDUType flag);
57PDU::PDUType ip_type_to_pdu_flag(Constants::IP::e flag);
58
59inline bool is_dot3(const uint8_t* ptr, size_t sz) {
60 return (sz >= 13 && ptr[12] < 8);
61}
62
63} // Internals
64} // Tins
65
70#endif // TINS_PDU_HELPERS_H
PDUType
Enum which identifies each type of PDU.
Definition pdu.h:127
The Tins namespace.
Definition address_range.h:38