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https://github.com/mfontanini/libtins
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744 lines
21 KiB
C++
744 lines
21 KiB
C++
/*
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* Copyright (c) 2012, Matias Fontanini
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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 are
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* met:
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*
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* * 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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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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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 FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef TINS_DOT11_DOT11_CONTROL_H
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#define TINS_DOT11_DOT11_CONTROL_H
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#include "../dot11/dot11_base.h"
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namespace Tins {
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/**
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* \brief Class that represents an 802.11 control frame.
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*/
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class Dot11Control : public Dot11 {
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public:
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/**
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* \brief This PDU's flag.
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*/
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static const PDU::PDUType pdu_flag = PDU::DOT11_CONTROL;
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/**
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* \brief Constructor for creating a 802.11 control frame PDU
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*
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* Constructs a 802.11 Control PDU taking the destination and
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* source hardware addresses.
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*
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* \param dst_addr The destination hardware address.
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*/
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Dot11Control(const address_type &dst_addr = address_type());
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/**
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* \brief Constructs a Dot11Control object from a buffer and
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* adds all identifiable PDUs found in the buffer as children
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* of this one.
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*
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* If the next PDU is not recognized, then a RawPDU is used.
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*
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* If there is not enough size for the header in the buffer
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* or the input data is malformed, a malformed_packet exception
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* is thrown.
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*
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* \param buffer The buffer from which this PDU will be constructed.
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* \param total_sz The total size of the buffer.
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*/
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Dot11Control(const uint8_t *buffer, uint32_t total_sz);
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/**
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* \brief Getter for the PDU's type.
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* \sa PDU::pdu_type
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*/
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PDUType pdu_type() const { return PDU::DOT11_CONTROL; }
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/**
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* \brief Check wether this PDU matches the specified flag.
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* \param flag The flag to match
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* \sa PDU::matches_flag
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*/
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bool matches_flag(PDUType flag) const {
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return flag == PDU::DOT11_CONTROL || Dot11::matches_flag(flag);
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}
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};
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/**
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* \brief Class that represents an abstraction of the 802.11 control frames
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* that contain a target address.
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*/
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class Dot11ControlTA : public Dot11Control {
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public:
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/**
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* \brief Getter for the target address field.
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*/
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address_type target_addr() const { return _taddr; }
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/**
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* \brief Setter for the target address field.
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* \param addr The new target address.
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*/
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void target_addr(const address_type &addr);
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protected:
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/**
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* \brief Constructor for creating a 802.11 control frame TA PDU
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*
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* Constructs a 802.11 PDU taking the destination and source
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* hardware addresses.
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*
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* \param dst_addr The destination hardware address.
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* \param target_addr The source hardware address.
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*/
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Dot11ControlTA(const address_type &dst_addr = address_type(),
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const address_type &target_addr = address_type());
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/**
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* \brief Constructs a Dot11ControlTA object from a buffer and
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* adds all identifiable PDUs found in the buffer as children
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* of this one.
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*
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* If the next PDU is not recognized, then a RawPDU is used.
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*
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* If there is not enough size for the header in the buffer
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* or the input data is malformed, a malformed_packet exception
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* is thrown.
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*
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* \param buffer The buffer from which this PDU will be constructed.
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* \param total_sz The total size of the buffer.
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*/
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Dot11ControlTA(const uint8_t *buffer, uint32_t total_sz);
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/**
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* \brief Returns the 802.11 frame's header length.
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*
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* \return An uint32_t with the header's size.
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* \sa PDU::header_size()
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*/
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uint32_t header_size() const;
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protected:
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/**
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* \brief Getter for the control ta additional fields size.
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*/
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uint32_t controlta_size() const { return _taddr.size() + sizeof(ieee80211_header); }
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uint32_t write_ext_header(uint8_t *buffer, uint32_t total_sz);
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private:
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address_type _taddr;
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};
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/**
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* \brief IEEE 802.11 RTS frame.
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*/
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class Dot11RTS : public Dot11ControlTA {
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public:
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/**
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* \brief This PDU's flag.
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*/
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static const PDU::PDUType pdu_flag = PDU::DOT11_RTS;
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/**
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* \brief Constructor for creating a 802.11 RTS frame PDU
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*
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* Constructs a 802.11 RTS PDU taking the destination and source
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* hardware addresses.
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*
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* \param dst_addr The destination hardware address.
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* \param target_addr The source hardware address.
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*/
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Dot11RTS(const address_type &dst_addr = address_type(),
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const address_type &target_addr = address_type());
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/**
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* \brief Constructs a Dot11RTS object from a buffer and adds all
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* identifiable PDUs found in the buffer as children of this one.
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*
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* If the next PDU is not recognized, then a RawPDU is used.
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*
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* If there is not enough size for the header in the buffer
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* or the input data is malformed, a malformed_packet exception
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* is thrown.
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*
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* \param buffer The buffer from which this PDU will be constructed.
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* \param total_sz The total size of the buffer.
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*/
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Dot11RTS(const uint8_t *buffer, uint32_t total_sz);
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/**
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* \brief Clones this PDU.
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*
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* \sa PDU::clone
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*/
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Dot11RTS *clone() const {
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return new Dot11RTS(*this);
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}
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/**
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* \brief Getter for the PDU's type.
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* \sa PDU::pdu_type
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*/
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PDUType pdu_type() const { return pdu_flag; }
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/**
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* \brief Check wether this PDU matches the specified flag.
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* \param flag The flag to match
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* \sa PDU::matches_flag
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*/
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bool matches_flag(PDUType flag) const {
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return flag == pdu_flag || Dot11Control::matches_flag(flag);
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}
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};
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class Dot11PSPoll : public Dot11ControlTA {
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public:
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/**
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* \brief This PDU's flag.
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*/
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static const PDU::PDUType pdu_flag = PDU::DOT11_PS_POLL;
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/**
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* \brief Constructor for creating a 802.11 PS-Poll frame PDU
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*
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* Constructs a 802.11 PDU taking the destination and source
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* hardware addresses.
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*
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* \param dst_addr The destination hardware address.
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* \param target_addr The source hardware address.
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*/
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Dot11PSPoll(const address_type &dst_addr = address_type(),
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const address_type &target_addr = address_type());
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/**
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* \brief Constructs a Dot11PSPoll object from a buffer and
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* adds all identifiable PDUs found in the buffer as children of
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* this one.
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*
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* If the next PDU is not recognized, then a RawPDU is used.
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*
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* If there is not enough size for the header in the buffer
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* or the input data is malformed, a malformed_packet exception
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* is thrown.
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*
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* \param buffer The buffer from which this PDU will be constructed.
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* \param total_sz The total size of the buffer.
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*/
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Dot11PSPoll(const uint8_t *buffer, uint32_t total_sz);
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/**
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* \brief Clones this PDU.
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*
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* \sa PDU::clone
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*/
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Dot11PSPoll *clone() const {
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return new Dot11PSPoll(*this);
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}
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/**
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* \brief Getter for the PDU's type.
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* \sa PDU::pdu_type
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*/
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PDUType pdu_type() const { return pdu_flag; }
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/**
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* \brief Check wether this PDU matches the specified flag.
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* \param flag The flag to match
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* \sa PDU::matches_flag
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*/
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bool matches_flag(PDUType flag) const {
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return flag == pdu_flag || Dot11Control::matches_flag(flag);
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}
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};
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class Dot11CFEnd : public Dot11ControlTA {
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public:
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/**
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* \brief This PDU's flag.
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*/
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static const PDU::PDUType pdu_flag = PDU::DOT11_CF_END;
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/**
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* \brief Constructor for creating a 802.11 CF-End frame PDU
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*
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* Constructs a 802.11 PDU taking the destination and source
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* hardware addresses.
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*
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* \param dst_addr The destination hardware address.
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* \param target_addr The source hardware address.
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*/
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Dot11CFEnd(const address_type &dst_addr = address_type(),
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const address_type &target_addr = address_type());
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/**
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* \brief Constructs a Dot11CFEnd object from a buffer and adds
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* all identifiable PDUs found in the buffer as children of this
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* one.
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*
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* If the next PDU is not recognized, then a RawPDU is used.
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*
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* If there is not enough size for the header in the buffer
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* or the input data is malformed, a malformed_packet exception
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* is thrown.
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*
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* \param buffer The buffer from which this PDU will be constructed.
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* \param total_sz The total size of the buffer.
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*/
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Dot11CFEnd(const uint8_t *buffer, uint32_t total_sz);
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/**
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* \brief Clones this PDU.
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*
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* \sa PDU::clone
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*/
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Dot11CFEnd *clone() const {
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return new Dot11CFEnd(*this);
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}
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/**
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* \brief Getter for the PDU's type.
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* \sa PDU::pdu_type
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*/
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PDUType pdu_type() const { return pdu_flag; }
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/**
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* \brief Check wether this PDU matches the specified flag.
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* \param flag The flag to match
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* \sa PDU::matches_flag
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*/
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bool matches_flag(PDUType flag) const {
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return flag == pdu_flag || Dot11Control::matches_flag(flag);
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}
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};
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class Dot11EndCFAck : public Dot11ControlTA {
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public:
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/**
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* \brief This PDU's flag.
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*/
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static const PDU::PDUType pdu_flag = PDU::DOT11_END_CF_ACK;
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/**
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* \brief Constructor for creating a 802.11 End-CF-Ack frame PDU
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*
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* Constructs a 802.11 PDU taking the destination and source
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* hardware addresses.
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*
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* \param dst_addr The destination hardware address.
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* \param target_addr The source hardware address.
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*/
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Dot11EndCFAck(const address_type &dst_addr = address_type(),
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const address_type &target_addr = address_type());
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/**
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* \brief Constructs a Dot11EndCFAck frame object from a buffer
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* and adds all identifiable PDUs found in the buffer as children
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* of this one.
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*
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* If the next PDU is not recognized, then a RawPDU is used.
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*
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* If there is not enough size for the header in the buffer
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* or the input data is malformed, a malformed_packet exception
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* is thrown.
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*
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* \param buffer The buffer from which this PDU will be constructed.
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* \param total_sz The total size of the buffer.
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*/
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Dot11EndCFAck(const uint8_t *buffer, uint32_t total_sz);
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/**
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* \brief Clones this PDU.
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*
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* \sa PDU::clone
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*/
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Dot11EndCFAck *clone() const {
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return new Dot11EndCFAck(*this);
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}
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/**
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* \brief Getter for the PDU's type.
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* \sa PDU::pdu_type
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*/
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PDUType pdu_type() const { return pdu_flag; }
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/**
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* \brief Check wether this PDU matches the specified flag.
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* \param flag The flag to match
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* \sa PDU::matches_flag
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*/
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bool matches_flag(PDUType flag) const {
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return flag == pdu_flag || Dot11Control::matches_flag(flag);
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}
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};
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class Dot11Ack : public Dot11Control {
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public:
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/**
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* \brief This PDU's flag.
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*/
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static const PDU::PDUType pdu_flag = PDU::DOT11_ACK;
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/**
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* \brief Constructor for creating a 802.11 Ack frame PDU
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*
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* Constructs a 802.11 PDU taking the destination and source
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* hardware addresses.
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*
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* \param dst_addr The destination hardware address.
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*/
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Dot11Ack(const address_type &dst_addr = address_type());
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/**
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* \brief Constructs a Dot11Ack frame object from a buffer and
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* adds all identifiable PDUs found in the buffer as children of
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* this one.
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*
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* If the next PDU is not recognized, then a RawPDU is used.
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*
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* If there is not enough size for the header in the buffer
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* or the input data is malformed, a malformed_packet exception
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* is thrown.
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*
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* \param buffer The buffer from which this PDU will be constructed.
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* \param total_sz The total size of the buffer.
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*/
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Dot11Ack(const uint8_t *buffer, uint32_t total_sz);
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/**
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* \brief Clones this PDU.
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*
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* \sa PDU::clone
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*/
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Dot11Ack *clone() const {
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return new Dot11Ack(*this);
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}
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/**
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* \brief Getter for the PDU's type.
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* \sa PDU::pdu_type
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*/
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PDUType pdu_type() const { return pdu_flag; }
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/**
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* \brief Check wether this PDU matches the specified flag.
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* \param flag The flag to match
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* \sa PDU::matches_flag
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*/
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bool matches_flag(PDUType flag) const {
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return flag == pdu_flag || Dot11Control::matches_flag(flag);
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}
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};
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/**
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* \brief Class that represents an 802.11 Block Ack Request PDU.
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*/
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class Dot11BlockAckRequest : public Dot11ControlTA {
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public:
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/**
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* \brief This PDU's flag.
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*/
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static const PDU::PDUType pdu_flag = PDU::DOT11_BLOCK_ACK_REQ;
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/**
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* \brief Constructor for creating a 802.11 Block Ack request frame PDU
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*
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* Constructs a 802.11 PDU taking the destination and source
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* hardware addresses.
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*
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* \param dst_addr The destination hardware address.
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* \param target_addr The source hardware address.
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*/
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Dot11BlockAckRequest(const address_type &dst_addr = address_type(),
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const address_type &target_addr = address_type());
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/**
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* \brief Constructs a Dot11BlockAckRequest object from a buffer
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* and adds all identifiable PDUs found in the buffer as children
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* of this one.
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*
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* If the next PDU is not recognized, then a RawPDU is used.
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*
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* If there is not enough size for the header in the buffer
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* or the input data is malformed, a malformed_packet exception
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* is thrown.
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*
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* \param buffer The buffer from which this PDU will be constructed.
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* \param total_sz The total size of the buffer.
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*/
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Dot11BlockAckRequest(const uint8_t *buffer, uint32_t total_sz);
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/* Getter */
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/**
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* \brief Getter for the bar control field.
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* \return The stored bar control field.
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*/
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small_uint<4> bar_control() const {
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#if TINS_IS_LITTLE_ENDIAN
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return _bar_control & 0xf;
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#else
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return (_bar_control >> 8) & 0xf;
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#endif
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}
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/**
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* \brief Getter for the start sequence field.
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* \return The stored start sequence.
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*/
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small_uint<12> start_sequence() const {
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#if TINS_IS_LITTLE_ENDIAN
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return (_start_sequence >> 4) & 0xfff;
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#else
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return (Endian::le_to_host<uint16_t>(_start_sequence) >> 4) & 0xfff;
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#endif
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}
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/**
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* \brief Getter for the fragment number field.
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* \return The stored fragment number field.
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*/
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small_uint<4> fragment_number() const {
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#if TINS_IS_LITTLE_ENDIAN
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return _start_sequence & 0xf;
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#else
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return (_start_sequence >> 8) & 0xf;
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#endif
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}
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/**
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* \brief Returns the 802.11 frame's header length.
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*
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* \return The header's size.
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* \sa PDU::header_size()
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*/
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uint32_t header_size() const;
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/* Setter */
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/**
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* \brief Setter for the bar control field.
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* \param bar The bar control field to be set.
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*/
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void bar_control(small_uint<4> bar);
|
|
|
|
/**
|
|
* \brief Setter for the start sequence field.
|
|
* \param bar The start sequence field to be set.
|
|
*/
|
|
void start_sequence(small_uint<12> seq);
|
|
|
|
/**
|
|
* \brief Setter for the fragment number field.
|
|
* \param frag The fragment number field to be set.
|
|
*/
|
|
void fragment_number(small_uint<4> frag);
|
|
|
|
/**
|
|
* \brief Clones this PDU.
|
|
*
|
|
* \sa PDU::clone
|
|
*/
|
|
Dot11BlockAckRequest *clone() const {
|
|
return new Dot11BlockAckRequest(*this);
|
|
}
|
|
|
|
/**
|
|
* \brief Getter for the PDU's type.
|
|
* \sa PDU::pdu_type
|
|
*/
|
|
PDUType pdu_type() const { return pdu_flag; }
|
|
|
|
/**
|
|
* \brief Check wether this PDU matches the specified flag.
|
|
* \param flag The flag to match
|
|
* \sa PDU::matches_flag
|
|
*/
|
|
bool matches_flag(PDUType flag) const {
|
|
return flag == pdu_flag || Dot11Control::matches_flag(flag);
|
|
}
|
|
protected:
|
|
uint32_t write_ext_header(uint8_t *buffer, uint32_t total_sz);
|
|
private:
|
|
void init_block_ack();
|
|
|
|
uint16_t _bar_control;
|
|
uint16_t _start_sequence;
|
|
};
|
|
|
|
/**
|
|
* \brief Class that represents an 802.11 block ack frame.
|
|
*/
|
|
class Dot11BlockAck : public Dot11ControlTA {
|
|
public:
|
|
/**
|
|
* \brief This PDU's flag.
|
|
*/
|
|
static const PDU::PDUType pdu_flag = PDU::DOT11_BLOCK_ACK;
|
|
|
|
/**
|
|
* The size of the bitmap field.
|
|
*/
|
|
static const size_t bitmap_size = 8;
|
|
|
|
/**
|
|
* \brief Constructor for creating a 802.11 Block Ack frame PDU
|
|
*
|
|
* Constructs a 802.11 PDU taking the destination and source
|
|
* hardware addresses.
|
|
*
|
|
* \param dst_addr The destination hardware address.
|
|
* \param target_addr The source hardware address.
|
|
*/
|
|
Dot11BlockAck(const address_type &dst_addr = address_type(),
|
|
const address_type &target_addr = address_type());
|
|
|
|
/**
|
|
* \brief Constructs a Dot11BlockAck frame 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 the header in the buffer
|
|
* or the input data is malformed, 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.
|
|
*/
|
|
Dot11BlockAck(const uint8_t *buffer, uint32_t total_sz);
|
|
|
|
/* Getters */
|
|
|
|
/**
|
|
* \brief Getter for the bar control field.
|
|
* \return The stored bar control field.
|
|
*/
|
|
small_uint<4> bar_control() const {
|
|
#if TINS_IS_LITTLE_ENDIAN
|
|
return _bar_control & 0xf;
|
|
#else
|
|
return (_bar_control >> 8) & 0xf;
|
|
#endif
|
|
}
|
|
|
|
/**
|
|
* \brief Getter for the start sequence field.
|
|
* \return The stored start sequence.
|
|
*/
|
|
small_uint<12> start_sequence() const {
|
|
#if TINS_IS_LITTLE_ENDIAN
|
|
return (_start_sequence >> 4) & 0xfff;
|
|
#else
|
|
return (Endian::le_to_host<uint16_t>(_start_sequence) >> 4) & 0xfff;
|
|
#endif
|
|
}
|
|
|
|
/**
|
|
* \brief Getter for the fragment number field.
|
|
* \return The stored fragment number field.
|
|
*/
|
|
small_uint<4> fragment_number() const {
|
|
#if TINS_IS_LITTLE_ENDIAN
|
|
return _start_sequence & 0xf;
|
|
#else
|
|
return (_start_sequence >> 8) & 0xf;
|
|
#endif
|
|
}
|
|
|
|
/**
|
|
* \brief Returns the 802.11 frame's header length.
|
|
*
|
|
* \return An uint32_t with the header's size.
|
|
* \sa PDU::header_size()
|
|
*/
|
|
uint32_t header_size() const;
|
|
|
|
/* Setters */
|
|
|
|
/**
|
|
* \brief Setter for the bar control field.
|
|
* \param bar The bar control field to be set.
|
|
*/
|
|
void bar_control(small_uint<4> bar);
|
|
|
|
/**
|
|
* \brief Setter for the start sequence field.
|
|
* \param bar The start sequence field to be set.
|
|
*/
|
|
void start_sequence(small_uint<12> seq);
|
|
|
|
/**
|
|
* \brief Setter for the fragment number field.
|
|
* \param frag The fragment number field to be set.
|
|
*/
|
|
void fragment_number(small_uint<4> frag);
|
|
|
|
/**
|
|
* \brief Getter for the bitmap field.
|
|
*
|
|
* The returned pointer <b>must not</b> be free'd.
|
|
*
|
|
* \return The bitmap field.
|
|
*/
|
|
const uint8_t *bitmap() const { return _bitmap; }
|
|
|
|
/**
|
|
* \brief Setter for the bitmap field.
|
|
* \param bit The new bitmap field to be set.
|
|
*/
|
|
void bitmap(const uint8_t *bit);
|
|
|
|
/**
|
|
* \brief Getter for the PDU's type.
|
|
* \sa PDU::pdu_type
|
|
*/
|
|
PDUType pdu_type() const { return pdu_flag; }
|
|
|
|
/**
|
|
* \brief Check wether this PDU matches the specified flag.
|
|
* \param flag The flag to match
|
|
* \sa PDU::matches_flag
|
|
*/
|
|
bool matches_flag(PDUType flag) const {
|
|
return flag == pdu_flag || Dot11Control::matches_flag(flag);
|
|
}
|
|
|
|
/**
|
|
* \brief Clones this PDU.
|
|
*
|
|
* \sa PDU::clone
|
|
*/
|
|
Dot11BlockAck *clone() const {
|
|
return new Dot11BlockAck(*this);
|
|
}
|
|
private:
|
|
void init_block_ack();
|
|
uint32_t write_ext_header(uint8_t *buffer, uint32_t total_sz);
|
|
|
|
uint16_t _bar_control, _start_sequence;
|
|
uint8_t _bitmap[bitmap_size];
|
|
};
|
|
} // namespace Tins
|
|
#endif // TINS_DOT11_DOT11_CONTROL_H
|