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Added QoS Data frames in 802.11

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This commit is contained in:
Santiago Alessandri
2011-08-26 09:54:57 -03:00
parent 9963ef280f
commit e0d227d2fd
2 changed files with 134 additions and 9 deletions
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102
include/ieee802-11.h
View File

@@ -136,7 +136,12 @@ namespace Tins {
DATA_NULL = 4,
CF_ACK = 5,
CF_POLL = 6,
CF_ACK_POLL = 7
CF_ACK_POLL = 7,
QOS_DATA_DATA = 8,
QOS_DATA_CF_ACK = 9,
QOS_DATA_CF_POLL = 10,
QOS_DATA_CF_ACK_POLL = 11,
QOS_DATA_NULL = 12
};
/**
@@ -949,7 +954,7 @@ namespace Tins {
* \param ver The version to be set.
*/
void version(uint16_t ver);
/**
* \brief Sets the capabilities field.
* \param cap The capabilities to be set.
@@ -957,25 +962,25 @@ namespace Tins {
void capabilities(uint16_t cap);
/* Getters */
/**
* \brief Getter for the group suite field.
* \return The group suite field.
*/
inline CypherSuites group_suite() const { return _group_suite; }
/**
* \brief Getter for the version field.
* \return The version field.
*/
inline uint16_t version() const { return _version; }
/**
* \brief Getter for the pairwise cypher suite list.
* \return A list of pairwise cypher suites.
*/
inline const std::list<CypherSuites> &pairwise_cyphers() const { return _pairwise_cyphers; }
/**
* \brief Getter for the akm suite list.
* \return A list of akm suites.
@@ -1106,16 +1111,16 @@ namespace Tins {
* string if no essid has been set.
*/
std::string essid() const;
/**
* \brief Helper method to search for the RSN information of this beacon.
*
*
* This method fills the RSN information structure of this beacon.
* \param rsn A pointer in which the RSN information will be stored.
* \return True if the RSNInformation option has been set.
*/
bool rsn_information(RSNInformation *rsn);
/**
* \brief Returns the frame's header length.
*
@@ -1317,6 +1322,85 @@ namespace Tins {
AssocReqBody _body;
};
class IEEE802_11_QoS_Data : public IEEE802_11 {
public:
/**
* \brief Constructor for creating a 802.11 QoS Data PDU
*
* Constructor that builds a 802.11 QoS Data PDU taking the destination's and source's MAC.
*
* \param dst_hw_addr uint8_t array of 6 bytes containing the destination's MAC(optional).
* \param src_hw_addr uint8_t array of 6 bytes containing the source's MAC(optional).
* \param child PDU* with the PDU contained by the 802.11 PDU (optional).
*/
IEEE802_11_QoS_Data(const uint8_t* dst_hw_addr = 0, const uint8_t* src_hw_addr = 0, PDU* child = 0);
/**
* \brief Constructor for creating a 802.11 QoS Data PDU
*
* Constructor that builds a 802.11 QoS Data PDU taking the interface name,
* destination's and source's MAC.
*
* \param iface string containing the interface's name from where to send the packet.
* \param dst_hw_addr uint8_t array of 6 bytes containing the destination's MAC(optional).
* \param src_hw_addr uint8_t array of 6 bytes containing the source's MAC(optional).
* \param child PDU* with the PDU contained by the 802.11 PDU (optional).
*/
IEEE802_11_QoS_Data(const std::string& iface, const uint8_t* dst_hw_addr = 0, const uint8_t* src_hw_addr = 0, PDU* child = 0) throw (std::runtime_error);
/**
* \brief Constructor for creating an 802.11 QoS Data PDU
*
* Constructor that builds an 802.11 QoS Data PDU taking the interface index,
* destination's and source's MAC.
*
* \param iface_index const uint32_t with the interface's index from where to send the packet.
* \param dst_hw_addr uint8_t array of 6 bytes containing the destination's MAC(optional).
* \param src_hw_addr uint8_t array of 6 bytes containing the source's MAC(optional).
* \param child PDU* with the PDU contained by the 802.11 PDU (optional).
*/
IEEE802_11_QoS_Data(uint32_t iface_index, const uint8_t* dst_hw_addr = 0, const uint8_t* src_hw_addr = 0, PDU* child = 0);
/**
* \brief Constructor which creates an 802.11 QoS Data object from a buffer and adds all identifiable
* PDUs found in the buffer as children of this one.
* \param buffer The buffer from which this PDU will be constructed.
* \param total_sz The total size of the buffer.
*/
IEEE802_11_QoS_Data(const uint8_t *buffer, uint32_t total_sz);
/**
* \brief Getter for the qos_control field.
*
* \return The value of the qos_control field in an uint16_t.
*/
inline uint16_t qos_control() const { return this->_qos_control; }
/**
* \brief Setter for the qos_control field.
*
* \param new_qos_control uint16_t with the value to the the qos_control field to.
*/
void qos_control(uint16_t new_qos_control);
/**
* \brief Returns the frame's header length.
*
* \return An uint32_t with the header's size.
* \sa PDU::header_size()
*/
uint32_t header_size() const;
private:
uint16_t _qos_control;
uint32_t write_fixed_parameters(uint8_t *buffer, uint32_t total_sz);
};
}
#endif

41
src/ieee802-11.cpp
View File

@@ -564,3 +564,44 @@ uint32_t Tins::IEEE802_11_Assoc_Request::write_fixed_parameters(uint8_t *buffer,
memcpy(buffer, &this->_body, sz);
return sz;
}
Tins::IEEE802_11_QoS_Data::IEEE802_11_QoS_Data(const uint8_t* dst_hw_addr, const uint8_t* src_hw_addr, PDU* child) : IEEE802_11(dst_hw_addr, src_hw_addr, child) {
this->type(IEEE802_11::DATA);
this->subtype(IEEE802_11::QOS_DATA_DATA);
this->_qos_control = 0;
}
Tins::IEEE802_11_QoS_Data::IEEE802_11_QoS_Data(const std::string& iface, const uint8_t* dst_hw_addr, const uint8_t* src_hw_addr, PDU* child) throw (std::runtime_error) : IEEE802_11(iface, dst_hw_addr, src_hw_addr, child) {
this->type(IEEE802_11::DATA);
this->subtype(IEEE802_11::QOS_DATA_DATA);
this->_qos_control = 0;
}
Tins::IEEE802_11_QoS_Data::IEEE802_11_QoS_Data(uint32_t iface_index, const uint8_t* dst_hw_addr, const uint8_t* src_hw_addr, PDU* child) : IEEE802_11(iface_index, dst_hw_addr, src_hw_addr, child) {
this->type(IEEE802_11::DATA);
this->subtype(IEEE802_11::QOS_DATA_DATA);
this->_qos_control = 0;
}
Tins::IEEE802_11_QoS_Data::IEEE802_11_QoS_Data(const uint8_t *buffer, uint32_t total_sz) : IEEE802_11(buffer, total_sz) {
buffer += sizeof(ieee80211_header);
total_sz -= sizeof(ieee80211_header);
assert(total_sz >= sizeof(this->_qos_control));
this->_qos_control = *(uint16_t*)buffer;
}
void Tins::IEEE802_11_QoS_Data::qos_control(uint16_t new_qos_control) {
this->_qos_control = new_qos_control;
}
uint32_t Tins::IEEE802_11_QoS_Data::header_size() const {
return IEEE802_11::header_size() + sizeof(this->_qos_control);
}
uint32_t Tins::IEEE802_11_QoS_Data::write_fixed_parameters(uint8_t *buffer, uint32_t total_sz) {
uint32_t sz = sizeof(this->_qos_control);
assert(sz <= total_sz);
*(uint16_t*)buffer = this->_qos_control;
return sz;
}