/usr/include/tins/ppi.h is in libtins-dev 3.4-2+b1.
This file is owned by root:root, with mode 0o644.
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* 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_PPI_H
#define TINS_PPI_H
#include "pdu.h"
#include "macros.h"
#include "endianness.h"
#include "small_uint.h"
namespace Tins {
/**
* \class PPI
* \brief Represents a Per-Packet Information PDU.
*
* This PDU can only be constructed from a buffer, and
* cannot be serialized. Therefore, it is only useful while
* sniffing packets.
*/
class TINS_API PPI : public PDU {
public:
/**
* This PDU's flag.
*/
static const PDU::PDUType pdu_flag = PDU::PPI;
/**
* \brief Constructs an PPI object from a buffer and adds all
* identifiable PDUs found in the buffer as children of this
* one.
*
* If there is not enough size for an PPI 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.
*/
PPI(const uint8_t* buffer, uint32_t total_sz);
// Getters
/**
* \brief Getter for the version field.
* \return The stored version field value.
*/
uint8_t version() const {
return header_.version;
}
/**
* \brief Getter for the flags field.
* \return The stored flags field value.
*/
uint8_t flags() const {
return header_.flags;
}
/**
* \brief Getter for the length field.
* \return The stored length field value.
*/
uint16_t length() const {
return Endian::le_to_host(header_.length);
}
/**
* \brief Getter for the Data Link Type field.
* \return The stored Data Link Type field value.
*/
uint32_t dlt() const {
return Endian::le_to_host(header_.dlt);
}
/**
* \brief Returns the header size.
*
* This method overrides PDU::header_size. \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 Clones this PDU.
*
* \sa PDU::clone
*/
PPI* clone() const {
return new PPI(*this);
}
private:
void write_serialization(uint8_t* buffer, uint32_t total_sz, const PDU *);
void parse_80211(const uint8_t* buffer, uint32_t total_sz);
struct ppi_header {
uint8_t version, flags;
uint16_t length;
uint32_t dlt;
};
ppi_header header_;
byte_array data_;
};
}
#endif // TINS_PPI_H
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