/*
* Copyright (c) 2017, 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.
*
*/
#include <tins/config.h>
#if !defined(TINS_DOT11_DOT11_CONTROL_H) && defined(TINS_HAVE_DOT11)
#define TINS_DOT11_DOT11_CONTROL_H
#include <tins/dot11/dot11_base.h>
#include <tins/macros.h>
namespace Tins {
/**
* \brief Represents an IEEE 802.11 control frame.
*/
class TINS_API Dot11Control : public Dot11 {
public:
/**
* \brief This PDU's flag.
*/
static const PDU::PDUType pdu_flag = PDU::DOT11_CONTROL;
/**
* \brief Constructor for creating a 802.11 control frame PDU
*
* Constructs a 802.11 Control PDU taking the destination and
* source hardware addresses.
*
* \param dst_addr The destination hardware address.
*/
Dot11Control(const address_type& dst_addr = address_type());
/**
* \brief Constructs a Dot11Control 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.
*/
Dot11Control(const uint8_t* buffer, uint32_t total_sz);
/**
* \brief Getter for the PDU's type.
* \sa PDU::pdu_type
*/
PDUType pdu_type() const {
return pdu_flag;
}
/**
* \brief Check whether 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 || Dot11::matches_flag(flag);
}
};
/**
* \brief Class that represents an abstraction of the 802.11 control frames
* that contain a target address.
*/
class TINS_API Dot11ControlTA : public Dot11Control {
public:
/**
* \brief This PDU's flag.
*/
static const PDU::PDUType pdu_flag = PDU::DOT11_CONTROL_TA;
/**
* \brief Getter for the target address field.
*/
address_type target_addr() const {
return taddr_;
}
/**
* \brief Setter for the target address field.
* \param addr The new target address.
*/
void target_addr(const address_type& addr);
/**
* \brief Check whether 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 || Dot11::matches_flag(flag);
}
protected:
/**
* \brief Constructor for creating a 802.11 control frame TA 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.
*/
Dot11ControlTA(const address_type& dst_addr = address_type(),
const address_type& target_addr = address_type());
/**
* \brief Constructs a Dot11ControlTA 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.
*/
Dot11ControlTA(const uint8_t* buffer, uint32_t total_sz);
/**
* \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;
protected:
/**
* \brief Getter for the control ta additional fields size.
*/
uint32_t controlta_size() const {
return static_cast<uint32_t>(taddr_.size() + sizeof(dot11_header));
}
void write_ext_header(Memory::OutputMemoryStream& stream);
private:
address_type taddr_;
};
/**
* \brief IEEE 802.11 RTS frame.
*/
class TINS_API Dot11RTS : public Dot11ControlTA {
public:
/**
* \brief This PDU's flag.
*/
static const PDU::PDUType pdu_flag = PDU::DOT11_RTS;
/**
* \brief Constructor for creating a 802.11 RTS frame PDU
*
* Constructs a 802.11 RTS PDU taking the destination and source
* hardware addresses.
*
* \param dst_addr The destination hardware address.
* \param target_addr The source hardware address.
*/
Dot11RTS(const address_type& dst_addr = address_type(),
const address_type& target_addr = address_type());
/**
* \brief Constructs a Dot11RTS 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.
*/
Dot11RTS(const uint8_t* buffer, uint32_t total_sz);
/**
* \brief Clones this PDU.
*
* \sa PDU::clone
*/
Dot11RTS* clone() const {
return new Dot11RTS(*this);
}
/**
* \brief Getter for the PDU's type.
* \sa PDU::pdu_type
*/
PDUType pdu_type() const {
return pdu_flag;
}
/**
* \brief Check whether 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);
}
};
class TINS_API Dot11PSPoll : public Dot11ControlTA {
public:
/**
* \brief This PDU's flag.
*/
static const PDU::PDUType pdu_flag = PDU::DOT11_PS_POLL;
/**
* \brief Constructor for creating a 802.11 PS-Poll 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.
*/
Dot11PSPoll(const address_type& dst_addr = address_type(),
const address_type& target_addr = address_type());
/**
* \brief Constructs a Dot11PSPoll 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.
*/
Dot11PSPoll(const uint8_t* buffer, uint32_t total_sz);
/**
* \brief Clones this PDU.
*
* \sa PDU::clone
*/
Dot11PSPoll* clone() const {
return new Dot11PSPoll(*this);
}
/**
* \brief Getter for the PDU's type.
* \sa PDU::pdu_type
*/
PDUType pdu_type() const {
return pdu_flag;
}
/**
* \brief Check whether 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);
}
};
class TINS_API Dot11CFEnd : public Dot11ControlTA {
public:
/**
* \brief This PDU's flag.
*/
static const PDU::PDUType pdu_flag = PDU::DOT11_CF_END;
/**
* \brief Constructor for creating a 802.11 CF-End 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.
*/
Dot11CFEnd(const address_type& dst_addr = address_type(),
const address_type& target_addr = address_type());
/**
* \brief Constructs a Dot11CFEnd 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.
*/
Dot11CFEnd(const uint8_t* buffer, uint32_t total_sz);
/**
* \brief Clones this PDU.
*
* \sa PDU::clone
*/
Dot11CFEnd* clone() const {
return new Dot11CFEnd(*this);
}
/**
* \brief Getter for the PDU's type.
* \sa PDU::pdu_type
*/
PDUType pdu_type() const {
return pdu_flag;
}
/**
* \brief Check whether 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);
}
};
class TINS_API Dot11EndCFAck : public Dot11ControlTA {
public:
/**
* \brief This PDU's flag.
*/
static const PDU::PDUType pdu_flag = PDU::DOT11_END_CF_ACK;
/**
* \brief Constructor for creating a 802.11 End-CF-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.
*/
Dot11EndCFAck(const address_type& dst_addr = address_type(),
const address_type& target_addr = address_type());
/**
* \brief Constructs a Dot11EndCFAck 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.
*/
Dot11EndCFAck(const uint8_t* buffer, uint32_t total_sz);
/**
* \brief Clones this PDU.
*
* \sa PDU::clone
*/
Dot11EndCFAck* clone() const {
return new Dot11EndCFAck(*this);
}
/**
* \brief Getter for the PDU's type.
* \sa PDU::pdu_type
*/
PDUType pdu_type() const {
return pdu_flag;
}
/**
* \brief Check whether 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);
}
};
class TINS_API Dot11Ack : public Dot11Control {
public:
/**
* \brief This PDU's flag.
*/
static const PDU::PDUType pdu_flag = PDU::DOT11_ACK;
/**
* \brief Constructor for creating a 802.11 Ack frame PDU
*
* Constructs a 802.11 PDU taking the destination and source
* hardware addresses.
*
* \param dst_addr The destination hardware address.
*/
Dot11Ack(const address_type& dst_addr = address_type());
/**
* \brief Constructs a Dot11Ack 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.
*/
Dot11Ack(const uint8_t* buffer, uint32_t total_sz);
/**
* \brief Clones this PDU.
*
* \sa PDU::clone
*/
Dot11Ack* clone() const {
return new Dot11Ack(*this);
}
/**
* \brief Getter for the PDU's type.
* \sa PDU::pdu_type
*/
PDUType pdu_type() const {
return pdu_flag;
}
/**
* \brief Check whether 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 Class that represents an 802.11 Block Ack Request PDU.
*/
class TINS_API Dot11BlockAckRequest : public Dot11ControlTA {
public:
/**
* \brief This PDU's flag.
*/
static const PDU::PDUType pdu_flag = PDU::DOT11_BLOCK_ACK_REQ;
/**
* \brief Constructor for creating a 802.11 Block Ack request 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.
*/
Dot11BlockAckRequest(const address_type& dst_addr = address_type(),
const address_type& target_addr = address_type());
/**
* \brief Constructs a Dot11BlockAckRequest 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.
*/
Dot11BlockAckRequest(const uint8_t* buffer, uint32_t total_sz);
/* Getter */
/**
* \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 The header's size.
* \sa PDU::header_size()
*/
uint32_t header_size() const;
/* Setter */
/**
* \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 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 whether 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:
void write_ext_header(Memory::OutputMemoryStream& stream);
private:
uint16_t bar_control_;
uint16_t start_sequence_;
};
/**
* \brief Class that represents an 802.11 block ack frame.
*/
class TINS_API 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 whether 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 write_ext_header(Memory::OutputMemoryStream& stream);
uint16_t bar_control_, start_sequence_;
uint8_t bitmap_[bitmap_size];
};
} // namespace Tins
#endif // TINS_DOT11_DOT11_CONTROL_H