/usr/include/tins/loopback.h is in libtins-dev 3.4-2+b1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 | /*
* Copyright (c) 2016, Matias Fontanini
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
*
* 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
* OWNER 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.
*
*/
#ifndef TINS_LOOPBACK_H
#define TINS_LOOPBACK_H
#include "pdu.h"
#include "macros.h"
namespace Tins {
/**
* \brief Represents a Loopback PDU
*/
class TINS_API Loopback : public PDU {
public:
/**
* This PDU's type.
*/
static const PDU::PDUType pdu_flag = PDU::LOOPBACK;
/**
* \brief Default constructs a Loopback PDU.
*
* The family identifier is left as zero.
*/
Loopback();
/**
* \brief Construct a Loopback object from a buffer and adds
* all identifiable PDUs found in the buffer as children of
* this one.
*
* If the next PDU is not recognized, then a RawPDU is used.
*
* If there is not enough size for a Loopback header, a
* malformed_packet exception is thrown.
*
* \param buffer The buffer from which this PDU will be constructed.
* \param total_sz The total size of the buffer.
*/
Loopback(const uint8_t* buffer, uint32_t total_sz);
/**
* \brief Getter for the family identifier.
* \return The stored family identifier.
*/
uint32_t family() const {
return family_;
}
/**
* \brief Setter for the family identifier.
* \param family_id The family identifier to be set.
*/
void family(uint32_t family_id);
/**
* \sa PDU::header_size
*/
uint32_t header_size() const;
/**
* \brief Getter for the PDU's type.
* \sa PDU::pdu_type
*/
PDUType pdu_type() const {
return pdu_flag;
}
/**
* \brief Check whether ptr points to a valid response for this PDU.
*
* \sa PDU::matches_response
* \param ptr The pointer to the buffer.
* \param total_sz The size of the buffer.
*/
bool matches_response(const uint8_t* ptr, uint32_t total_sz) const;
/**
* \sa PDU::clone
*/
Loopback* clone() const {
return new Loopback(*this);
}
// Null/Loopback can only be sent in* BSD
#ifdef BSD
/**
* \sa PDU::send()
*/
void send(PacketSender& sender, const NetworkInterface& iface);
#endif // BSD
private:
void write_serialization(uint8_t* buffer, uint32_t total_sz, const PDU* parent);
uint32_t family_;
};
} // Tins
#endif // TINS_LOOPBACK_H
|