def parseMsg(self, message):
# separate header and payload
head = message[:HEADERLENGTH]
payload = message[HEADERLENGTH:]
# return pair (header, data) where header is a list and data is raw
header = helpers.unpackHeader(head)
print header
return (header, payload)
def parseMsg(self, message): # separate header and payload head = message[:HEADERLENGTH] payload = message[HEADERLENGTH:] # return pair (header, data) where header is a list and data is raw header = helpers.unpackHeader(head) print header return (header, payload)
def listen(self):
synpacket, cliAddr = self.sockd.recvfrom(2048)
self.clientPort = cliAddr[1]
head = helpers.unpackHeader(synpacket)
#header = packet.Header(head)
# check that received packet has SYN flag set
print head
assert head[SYNF] == 1, "Invalid packet -- not SYN"
# set ACK number from client sequence number
self.lastack = head[SEQNUM] + 1
# connect with client
print("connect to " + str(cliAddr))
self.sockd.connect(cliAddr)
# instantiate sender/receiver
self.sender = sender.Sender(self.sockd)
self.receiver = receiver.Receiver(self)
self.SYNReceived()
def listen(self):
synpacket, cliAddr = self.sockd.recvfrom(2048)
self.clientPort = cliAddr[1]
head = helpers.unpackHeader(synpacket)
#header = packet.Header(head)
# check that received packet has SYN flag set
print head
assert head[SYNF] == 1, "Invalid packet -- not SYN"
# set ACK number from client sequence number
self.lastack = head[SEQNUM] + 1
# connect with client
print("connect to " + str(cliAddr))
self.sockd.connect(cliAddr)
# instantiate sender/receiver
self.sender = sender.Sender(self.sockd)
self.receiver = receiver.Receiver(self)
self.SYNReceived()
