def __init__(self, numSNBits=16):
"""Initialize the packet format. By default use 16 bits for seq.nums.
Arguments:
numSNBits:Integer -- number of bits for the sequence numbers in
the packet format.
"""
PointToPointDL.__init__(self)
self._newFrame = None # We need the window size before creating PDUs.
self._sendBuffer = {} # Dictionary: SN --> Bitstream
self._retransmissionTimer = {} # Dictionary: SN --> Timer
self._transmitQueue = [] # List of frames to transmit
self._SN_MODULO = 2**numSNBits
if (2 * numSNBits) % 8 != 0:
padLen = 8 - (2 * numSNBits) % 8
self._newFrame = formatFactory(
[
('SN', 'BitField', numSNBits, 0), # Sequence number
('RN', 'BitField', numSNBits, 0), # Acknowledged SN
('pad', 'BitField', padLen,
0), # Padding to align to octets
('data', 'ByteField', None, None), # Payload
('FCS', 'Int', 32, None)
], # Checksum: CRC32.
self)
else:
self._newFrame = formatFactory(
[
('SN', 'BitField', numSNBits, 0), # Sequence number
('RN', 'BitField', numSNBits, 0), # Acknowledged SN
('data', 'ByteField', None, None), # Payload
('FCS', 'Int', 32, None)
], # Checksum: CRC32.
self)
def __init__(self, numSNBits=16):
GoBackNDL.__init__(self, numSNBits)
self._receiveBuffer = {} # Dictionary: SN --> Bitstream
self._SN_MODULO = 2**numSNBits
if (2 * numSNBits) % 8 != 0:
padLen = 8 - (2 * numSNBits) % 8
self._newFrame = formatFactory(
[
('SN', 'BitField', numSNBits, 0), # Sequence number
('RN', 'BitField', numSNBits, 0), # Acknowledged SN
('SREJ', 'Int', 8, 0), # 1 byte to signal SREJ
('pad', 'BitField', padLen,
0), # Padding to align to octets
('data', 'ByteField', None, None), # Payload
('FCS', 'Int', 32, None)
], # Checksum: CRC32.
self)
else:
self._newFrame = formatFactory(
[
('SN', 'BitField', numSNBits, 0), # Sequence number
('RN', 'BitField', numSNBits, 0), # Acknowledged SN
('SREJ', 'Int', 8, 0), # 1 byte to signal SREJ
('data', 'ByteField', None, None), # Payload
('FCS', 'Int', 32, None)
], # Checksum: CRC32.
self)
def __init__(self,numSNBits=16):
"""Initialize the packet format. By default use 16 bits for seq.nums.
Arguments:
numSNBits:Integer -- number of bits for the sequence numbers in
the packet format.
"""
PointToPointDL.__init__(self)
self._newFrame = None # We need the window size before creating PDUs.
self._sendBuffer = {} # Dictionary: SN --> Bitstream
self._retransmissionTimer = {} # Dictionary: SN --> Timer
self._transmitQueue = [] # List of frames to transmit
self._SN_MODULO = 2**numSNBits
if (2*numSNBits) % 8 != 0:
padLen = 8 - (2*numSNBits)%8
self._newFrame = formatFactory(
[('SN', 'BitField', numSNBits, 0), # Sequence number
('RN', 'BitField', numSNBits, 0), # Acknowledged SN
('pad', 'BitField', padLen, 0), # Padding to align to octets
('data', 'ByteField', None, None), # Payload
('FCS', 'Int', 32, None)], # Checksum: CRC32.
self)
else:
self._newFrame = formatFactory(
[('SN', 'BitField', numSNBits, 0), # Sequence number
('RN', 'BitField', numSNBits, 0), # Acknowledged SN
('data', 'ByteField', None, None), # Payload
('FCS', 'Int', 32, None)], # Checksum: CRC32.
self)
def __init__(self):
PointToPointDL.__init__(self)
self._newFrame = formatFactory(
[('SN', 'BitField', 1, 0), # Sequence number: 1 bit, defaul: 0
('RN', 'BitField', 1, 0), # Acknowledged SN: 1 bit, default: 0
('pad', 'BitField', 6, 0), # Padding to align to octet boundaries
('data', 'ByteField', None, None), # Payload
('FCS', 'Int', 32, None)], # Checksum: CRC32.
self)
def __init__(self):
PointToPointDL.__init__(self)
self._newFrame = formatFactory(
[
('SN', 'BitField', 1, 0), # Sequence number: 1 bit, defaul: 0
('RN', 'BitField', 1, 0), # Acknowledged SN: 1 bit, default: 0
('pad', 'BitField', 6,
0), # Padding to align to octet boundaries
('data', 'ByteField', None, None), # Payload
('FCS', 'Int', 32, None)
], # Checksum: CRC32.
self)
def __init__(self,numSNBits=16):
GoBackNDL.__init__(self,numSNBits)
self._receiveBuffer = {} # Dictionary: SN --> Bitstream
self._SN_MODULO = 2**numSNBits
if (2*numSNBits) % 8 != 0:
padLen = 8 - (2*numSNBits)%8
self._newFrame = formatFactory(
[('SN', 'BitField', numSNBits, 0), # Sequence number
('RN', 'BitField', numSNBits, 0), # Acknowledged SN
('SREJ', 'Int', 8, 0), # 1 byte to signal SREJ
('pad', 'BitField', padLen, 0), # Padding to align to octets
('data', 'ByteField', None, None), # Payload
('FCS', 'Int', 32, None)], # Checksum: CRC32.
self)
else:
self._newFrame = formatFactory(
[('SN', 'BitField', numSNBits, 0), # Sequence number
('RN', 'BitField', numSNBits, 0), # Acknowledged SN
('SREJ', 'Int', 8, 0), # 1 byte to signal SREJ
('data', 'ByteField', None, None), # Payload
('FCS', 'Int', 32, None)], # Checksum: CRC32.
self)
def __init__(self):
PointToPointDL.__init__(self)
self._newFrame = formatFactory(
[('DstAddr', 'Int', 8, 0), # Destination address
('SrcAddr', 'Int', 8, 0), # Source address
('SN', 'BitField', 1, 0), # Sequence number: 1 bit, defaul: 0
('RN', 'BitField', 1, 0), # Acknowledged SN: 1 bit, default: 0
('pad', 'BitField', 6, 0), # Padding to align to octet boundaries
('data', 'ByteField', None, None), # Payload
('FCS', 'Int', 32, None)], # Checksum: CRC32.
self)
self._transmitQueue = [] # List of frames to transmit
self._computeBackoff = self._fixedBackoff
self._VR = {}
self._VS = {}
def __init__(self):
PointToPointDL.__init__(self)
self._newFrame = formatFactory(
[
('DstAddr', 'Int', 8, 0), # Destination address
('SrcAddr', 'Int', 8, 0), # Source address
('SN', 'BitField', 1, 0), # Sequence number: 1 bit, defaul: 0
('RN', 'BitField', 1, 0), # Acknowledged SN: 1 bit, default: 0
('pad', 'BitField', 6,
0), # Padding to align to octet boundaries
('data', 'ByteField', None, None), # Payload
('FCS', 'Int', 32, None)
], # Checksum: CRC32.
self)
self._transmitQueue = [] # List of frames to transmit
self._computeBackoff = self._fixedBackoff
self._VR = {}
self._VS = {}
def install(self, niu, protocolName):
"""Install the protocol entity on a NIU.
This method is called by the node or the NIU to inform the protocol
that is has been installed. It registers the NIU for later access
and chooses a random MAC address that can later by changed using the
MAC.setAddress method. It also creates a new PDU class 802.3 for its
MAC frames. The format is described in the standard, Section 3.1.1.
Arguments:
niu:NIU -- NIU on which self is installed
protocoleName:String -- Must be 'mac'.
Return value: None.
"""
if isinstance(niu, NIU):
self._niu = niu
else:
raise TypeError("Ethernet MAC entity must be installed on a NIU")
if protocolName != "mac":
raise NameError("Ethernet MAC entity must be installed under the "
"name 'mac'")
self._protocolName = "mac"
self.fullName = niu.fullName + ".mac"
ints = [int(random()*256) for i in range(6)]
if ints[0]%2 == 1:
ints[0] -= 1
self.address = "%02X:%02X:%02X:%02X:%02X:%02X"%tuple(ints)
self._PDU = formatFactory(
#@@@ Bit order of preamble, SFD, and FCS is not correct.
# See 3.3 and 3.2.8
[('preamble', 'ByteField', 56, chr(int('10101010', 2))*7),
('SFD', 'ByteField', 8, chr(int('10101011',2))),
('destAddr', 'MACAddr', 48, 'FF:FF:FF:FF:FF:FF'),
('srcAddr', 'MACAddr', 48, self.address),
('typeOrLength', 'Int', 16, 0x0800),
('data', 'ByteField', None, None),
('FCS', 'Int', 32, None)], self)
# Start accepting frames
self._niu.XOFF = False
def install(self, niu, protocolName):
"""Install the protocol entity on a NIU.
This method is called by the node or the NIU to inform the protocol
that is has been installed. It registers the NIU for later access
and chooses a random MAC address that can later by changed using the
MAC.setAddress method. It also creates a new PDU class 802.3 for its
MAC frames. The format is described in the standard, Section 3.1.1.
Arguments:
niu:NIU -- NIU on which self is installed
protocoleName:String -- Must be 'mac'.
Return value: None.
"""
if isinstance(niu, NIU):
self._niu = niu
else:
raise TypeError("Ethernet MAC entity must be installed on a NIU")
if protocolName != "mac":
raise NameError("Ethernet MAC entity must be installed under the "
"name 'mac'")
self._protocolName = "mac"
self.fullName = niu.fullName + ".mac"
ints = [int(random() * 256) for i in range(6)]
if ints[0] % 2 == 1:
ints[0] -= 1
self.address = "%02X:%02X:%02X:%02X:%02X:%02X" % tuple(ints)
self._PDU = formatFactory(
#@@@ Bit order of preamble, SFD, and FCS is not correct.
# See 3.3 and 3.2.8
[('preamble', 'ByteField', 56, chr(int('10101010', 2)) * 7),
('SFD', 'ByteField', 8, chr(int('10101011', 2))),
('destAddr', 'MACAddr', 48, 'FF:FF:FF:FF:FF:FF'),
('srcAddr', 'MACAddr', 48, self.address),
('typeOrLength', 'Int', 16, 0x0800),
('data', 'ByteField', None, None), ('FCS', 'Int', 32, None)],
self)
# Start accepting frames
self._niu.XOFF = False
def __init__(self):
#Structure of the default data frame (7.2.2)
#With QoS Control field
self.MPDUQos = formatFactory(
[('frameControl', 'ByteField', 16, None),
('durationID', 'Int', 16, 0),
('address1', 'MACAddr', 48, 'FF:FF:FF:FF:FF:FF'),
('address2', 'MACAddr', 48, 'FF:FF:FF:FF:FF:FF'),
('address3', 'MACAddr', 48, 'FF:FF:FF:FF:FF:FF'),
('sequenceControl', 'ByteField', 16, None),
('address4', 'MACAddr', 48, 'FF:FF:FF:FF:FF:FF'),
('qosControl', 'ByteField', 16, None), #QoS capabilities
('data', 'ByteField', None, None),
('FCS', 'Int', 32, None)
], self)
#Without QoS Control field
self.MPDU = formatFactory(
[('frameControl', 'ByteField', 16, None),
('durationID', 'Int', 16, 0),
('address1', 'MACAddr', 48, 'FF:FF:FF:FF:FF:FF'),
('address2', 'MACAddr', 48, 'FF:FF:FF:FF:FF:FF'),
('address3', 'MACAddr', 48, 'FF:FF:FF:FF:FF:FF'),
('sequenceControl', 'ByteField', 16, None),
('address4', 'MACAddr', 48, 'FF:FF:FF:FF:FF:FF'),
('data', 'ByteField', None, None),
('FCS', 'Int', 32, None)
], self)
#QoS Control field (7.1.3.5)
self.QosControl = formatFactory(
[('tid', 'BitField', 4, 0),
('eosp', 'BitField', 1, 0),
('ackPolicy', 'BitField', 2, 0),
('reserved', 'BitField', 1, 0),
('txopOrQueue', 'Int', 8, None)
], self)
#Frame Control field (7.1.3.1)
self.FrameControl = formatFactory(
[('protocolVersion', 'BitField', 2, 0),
('type', 'BitField', 2, None),
('subType', 'BitField', 4, None),
('toDS', 'BitField', 1, 0),
('fromDS', 'BitField', 1, 1),
('moreFrag', 'BitField', 1, 0),
('retry', 'BitField', 1, 0),
('pwrMgt', 'BitField', 1, 0),
('moreData', 'BitField', 1, 0),
('wep', 'BitField', 1, 0),
('order', 'BitField', 1, None)
], self)
#Sequence Address field (7.1.3.4)
self.SequenceControl = formatFactory(
[('fragmentNb', 'BitField', 4, None),
('sequenceNb', 'BitField', 12, None)
], self)
#Structure of the ACK frame (7.2.1.3)
self.ACK = formatFactory(
[('frameControl', 'ByteField', 16, None),
('durationID', 'Int', 16, 0),
('receiverAddress', 'MACAddr', 48, 'FF:FF:FF:FF:FF:FF'),
('FCS', 'Int', 32, None)
], self)
#Structure of the CF-END frame (7.2.1.3)
self.CF_END = formatFactory(
[('frameControl', 'ByteField', 16, None),
('durationID', 'Int', 16, 0),
('receiverAddress', 'MACAddr', 48, 'FF:FF:FF:FF:FF:FF'),
('BSSID', 'MACAddr', 48, 'FF:FF:FF:FF:FF:FF'),
('FCS', 'Int', 32, None)
], self)
#Structure of the default Management frame (7.2.3)
self.Management = formatFactory(
[('frameControl', 'ByteField', 16, None),
('durationID', 'Int', 16, 0),
('DA', 'MACAddr', 48, 'FF:FF:FF:FF:FF:FF'),
('SA', 'MACAddr', 48, 'FF:FF:FF:FF:FF:FF'),
('BSSID', 'MACAddr', 48, 'FF:FF:FF:FF:FF:FF'),
('sequenceControl', 'ByteField', 16, None),
('data', 'ByteField', None, None),
('FCS', 'Int', 32, None)
], self)
#Structure of data field for a Beacon frame (7.2.3.1)
#With QoS
self.BeaconDataQos = formatFactory(
[('timeStamp', 'ByteField', 48, None),
('beaconInterval', 'Int', 16, None),
('capabilityInfo', 'ByteField', 16, None),
('SSID', 'ByteField', 16, None), #Variable size: 16-272 (min is employed)
('supportedRates', 'ByteField', 24, None), #Variable size: 24-80 (min is employed)
#('FHParameterSet','ByteField', 56, None), #Optional (for FHSS modulation)
#('DSParameterSet','ByteField', 16, None), #Optional (for DSSS modulation)
#('CFParameterSet','ByteField', 64, None), #Optional (for PCF)
#('IBSSParameterSet','ByteField', 32, None), #Optional (for independant BSS structure)
('TIM','ByteField', None, None),
('QBSSLoad', 'ByteField', 56, None), #QoS capabilities
('EDCAParameterSet', 'ByteField', 160, None), #QoS capabilities
('QosCapability', 'ByteField', 24, None) #QoS capabilities
], self)
#Without QoS
self.BeaconData = formatFactory(
[('timeStamp', 'ByteField', 48, None),
('beaconInterval', 'Int', 16, None),
('capabilityInfo', 'ByteField', 16, None),
('SSID', 'ByteField', 16, None), #Variable size: 16-272 (min is employed)
('supportedRates', 'ByteField', 24, None), #Variable size: 24-80 (min is employed)
('TIM','ByteField', None, None),
], self)
#Structure of the Capability Info field (7.3.1.4)
self.CapabilityInfo = formatFactory(
[('ESS', 'BitField', 1, None),
('IBSS', 'BitField', 1, None),
('CFPollable', 'BitField', 1, None),
('CFPollRequest', 'BitField', 1, None),
('privacy', 'BitField', 1, None),
('shortPreamble', 'BitField', 1, None),
('PBCC', 'BitField', 1, None),
('channelAgility', 'BitField', 1, None),
('spectrumManagement', 'BitField', 1, None),
('Qos', 'BitField', 1, None), #QoS capabilities
('shortSlotTime', 'BitField', 1, None),
('APSD', 'BitField', 1, None), #QoS capabilities
('reserved', 'BitField', 1, None),
('DSSS_OFDM', 'BitField', 1, None),
('delayedBlockAck', 'BitField', 1, None), #QoS capabilities
('immediateBlockAck', 'BitField', 1, None) #QoS capabilities
], self)
#Element model field (7.3.2)
self.Element = formatFactory(
[('elementID', 'Int', 8, None),
('length', 'Int', 8, None),
('information', 'ByteField', None, None)
], self)
#EDCA Parameter Set (Element) (7.3.2.14)
self.EDCAParameterSet = formatFactory(
[('QosInfo', 'ByteField', 8, None),
('reserved', 'ByteField', 8, None),
('AC_BEParameterRecord', 'ByteField', 32, None),
('AC_BKParameterRecord', 'ByteField', 32, None),
('AC_VIParameterRecord', 'ByteField', 32, None),
('AC_VOParameterRecord', 'ByteField', 32, None),
], self)
#QoS Information subfield (from AP) (7.3.1.17)
self.QosInformationAP = formatFactory(
[('EDCAParamSetUpdateCount', 'BitField', 4, None),
('Q_Ack', 'BitField', 1, None),
('queueRequest', 'BitField', 1, None),
('TXOPRequest', 'BitField', 1, None),
('reserved', 'BitField', 1, None),
], self)
#QoS Information subfield (from STA) (7.3.1.17)
self.QosInformationSTA = formatFactory(
[('AC_VOFlag', 'BitField', 1, None),
('AC_VIFlag', 'BitField', 1, None),
('AC_BKFlag', 'BitField', 1, None),
('AC_BEFlag', 'BitField', 1, None),
('Q_Ack', 'BitField', 1, None),
('maxSPLength', 'BitField', 2, None),
('moreDataAck', 'BitField', 1, None),
], self)
#AC Parameter Record subfield (from STA) (7.3.2.14)
self.ACParameterRecord = formatFactory(
[('AIFSN', 'BitField', 4, None),
('ACM', 'BitField', 1, None),
('ACI', 'BitField', 2, None),
('reserved', 'BitField', 1, None),
('ECWmin', 'BitField', 4, None),
('ECWmax', 'BitField', 4, None),
('TXOPLimit', 'BitField', 16, None),
], self)
def __init__(self):
#Structure of the default data frame (7.2.2)
#With QoS Control field
self.MPDUQos = formatFactory(
[
('frameControl', 'ByteField', 16, None),
('durationID', 'Int', 16, 0),
('address1', 'MACAddr', 48, 'FF:FF:FF:FF:FF:FF'),
('address2', 'MACAddr', 48, 'FF:FF:FF:FF:FF:FF'),
('address3', 'MACAddr', 48, 'FF:FF:FF:FF:FF:FF'),
('sequenceControl', 'ByteField', 16, None),
('address4', 'MACAddr', 48, 'FF:FF:FF:FF:FF:FF'),
('qosControl', 'ByteField', 16, None), #QoS capabilities
('data', 'ByteField', None, None),
('FCS', 'Int', 32, None)
],
self)
#Without QoS Control field
self.MPDU = formatFactory(
[('frameControl', 'ByteField', 16, None),
('durationID', 'Int', 16, 0),
('address1', 'MACAddr', 48, 'FF:FF:FF:FF:FF:FF'),
('address2', 'MACAddr', 48, 'FF:FF:FF:FF:FF:FF'),
('address3', 'MACAddr', 48, 'FF:FF:FF:FF:FF:FF'),
('sequenceControl', 'ByteField', 16, None),
('address4', 'MACAddr', 48, 'FF:FF:FF:FF:FF:FF'),
('data', 'ByteField', None, None),
('FCS', 'Int', 32, None)], self)
#QoS Control field (7.1.3.5)
self.QosControl = formatFactory([('tid', 'BitField', 4, 0),
('eosp', 'BitField', 1, 0),
('ackPolicy', 'BitField', 2, 0),
('reserved', 'BitField', 1, 0),
('txopOrQueue', 'Int', 8, None)],
self)
#Frame Control field (7.1.3.1)
self.FrameControl = formatFactory(
[('protocolVersion', 'BitField', 2, 0),
('type', 'BitField', 2, None), ('subType', 'BitField', 4, None),
('toDS', 'BitField', 1, 0), ('fromDS', 'BitField', 1, 1),
('moreFrag', 'BitField', 1, 0), ('retry', 'BitField', 1, 0),
('pwrMgt', 'BitField', 1, 0), ('moreData', 'BitField', 1, 0),
('wep', 'BitField', 1, 0), ('order', 'BitField', 1, None)], self)
#Sequence Address field (7.1.3.4)
self.SequenceControl = formatFactory(
[('fragmentNb', 'BitField', 4, None),
('sequenceNb', 'BitField', 12, None)], self)
#Structure of the ACK frame (7.2.1.3)
self.ACK = formatFactory(
[('frameControl', 'ByteField', 16, None),
('durationID', 'Int', 16, 0),
('receiverAddress', 'MACAddr', 48, 'FF:FF:FF:FF:FF:FF'),
('FCS', 'Int', 32, None)], self)
#Structure of the CF-END frame (7.2.1.3)
self.CF_END = formatFactory(
[('frameControl', 'ByteField', 16, None),
('durationID', 'Int', 16, 0),
('receiverAddress', 'MACAddr', 48, 'FF:FF:FF:FF:FF:FF'),
('BSSID', 'MACAddr', 48, 'FF:FF:FF:FF:FF:FF'),
('FCS', 'Int', 32, None)], self)
#Structure of the default Management frame (7.2.3)
self.Management = formatFactory(
[('frameControl', 'ByteField', 16, None),
('durationID', 'Int', 16, 0),
('DA', 'MACAddr', 48, 'FF:FF:FF:FF:FF:FF'),
('SA', 'MACAddr', 48, 'FF:FF:FF:FF:FF:FF'),
('BSSID', 'MACAddr', 48, 'FF:FF:FF:FF:FF:FF'),
('sequenceControl', 'ByteField', 16, None),
('data', 'ByteField', None, None),
('FCS', 'Int', 32, None)], self)
#Structure of data field for a Beacon frame (7.2.3.1)
#With QoS
self.BeaconDataQos = formatFactory(
[
('timeStamp', 'ByteField', 48, None),
('beaconInterval', 'Int', 16, None),
('capabilityInfo', 'ByteField', 16, None),
('SSID', 'ByteField', 16,
None), #Variable size: 16-272 (min is employed)
('supportedRates', 'ByteField', 24,
None), #Variable size: 24-80 (min is employed)
#('FHParameterSet','ByteField', 56, None), #Optional (for FHSS modulation)
#('DSParameterSet','ByteField', 16, None), #Optional (for DSSS modulation)
#('CFParameterSet','ByteField', 64, None), #Optional (for PCF)
#('IBSSParameterSet','ByteField', 32, None), #Optional (for independant BSS structure)
('TIM', 'ByteField', None, None),
('QBSSLoad', 'ByteField', 56, None), #QoS capabilities
('EDCAParameterSet', 'ByteField', 160,
None), #QoS capabilities
('QosCapability', 'ByteField', 24, None) #QoS capabilities
],
self)
#Without QoS
self.BeaconData = formatFactory(
[
('timeStamp', 'ByteField', 48, None),
('beaconInterval', 'Int', 16, None),
('capabilityInfo', 'ByteField', 16, None),
('SSID', 'ByteField', 16,
None), #Variable size: 16-272 (min is employed)
('supportedRates', 'ByteField', 24,
None), #Variable size: 24-80 (min is employed)
('TIM', 'ByteField', None, None),
],
self)
#Structure of the Capability Info field (7.3.1.4)
self.CapabilityInfo = formatFactory(
[
('ESS', 'BitField', 1, None),
('IBSS', 'BitField', 1, None),
('CFPollable', 'BitField', 1, None),
('CFPollRequest', 'BitField', 1, None),
('privacy', 'BitField', 1, None),
('shortPreamble', 'BitField', 1, None),
('PBCC', 'BitField', 1, None),
('channelAgility', 'BitField', 1, None),
('spectrumManagement', 'BitField', 1, None),
('Qos', 'BitField', 1, None), #QoS capabilities
('shortSlotTime', 'BitField', 1, None),
('APSD', 'BitField', 1, None), #QoS capabilities
('reserved', 'BitField', 1, None),
('DSSS_OFDM', 'BitField', 1, None),
('delayedBlockAck', 'BitField', 1, None), #QoS capabilities
('immediateBlockAck', 'BitField', 1, None
) #QoS capabilities
],
self)
#Element model field (7.3.2)
self.Element = formatFactory(
[('elementID', 'Int', 8, None), ('length', 'Int', 8, None),
('information', 'ByteField', None, None)], self)
#EDCA Parameter Set (Element) (7.3.2.14)
self.EDCAParameterSet = formatFactory([
('QosInfo', 'ByteField', 8, None),
('reserved', 'ByteField', 8, None),
('AC_BEParameterRecord', 'ByteField', 32, None),
('AC_BKParameterRecord', 'ByteField', 32, None),
('AC_VIParameterRecord', 'ByteField', 32, None),
('AC_VOParameterRecord', 'ByteField', 32, None),
], self)
#QoS Information subfield (from AP) (7.3.1.17)
self.QosInformationAP = formatFactory([
('EDCAParamSetUpdateCount', 'BitField', 4, None),
('Q_Ack', 'BitField', 1, None),
('queueRequest', 'BitField', 1, None),
('TXOPRequest', 'BitField', 1, None),
('reserved', 'BitField', 1, None),
], self)
#QoS Information subfield (from STA) (7.3.1.17)
self.QosInformationSTA = formatFactory([
('AC_VOFlag', 'BitField', 1, None),
('AC_VIFlag', 'BitField', 1, None),
('AC_BKFlag', 'BitField', 1, None),
('AC_BEFlag', 'BitField', 1, None),
('Q_Ack', 'BitField', 1, None),
('maxSPLength', 'BitField', 2, None),
('moreDataAck', 'BitField', 1, None),
], self)
#AC Parameter Record subfield (from STA) (7.3.2.14)
self.ACParameterRecord = formatFactory([
('AIFSN', 'BitField', 4, None),
('ACM', 'BitField', 1, None),
('ACI', 'BitField', 2, None),
('reserved', 'BitField', 1, None),
('ECWmin', 'BitField', 4, None),
('ECWmax', 'BitField', 4, None),
('TXOPLimit', 'BitField', 16, None),
], self)
