63 lines
1.6 KiB
Python
Executable File
63 lines
1.6 KiB
Python
Executable File
#!/usr/bin/python
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#
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# reassemby.py
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#
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# Reassemly test with PicoTCP receiving and Linux sending
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#
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# (receiver) (Sender)
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# PicoTCP ------------------------ Linux
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#
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# An udpecho is started which will receive DATASIZE bytes in one go
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# from the socket. The Linux will send DATASIZE bytes in one go to the
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# udpecho, this data will be sent fragmented. The udpecho is to reassemble
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# this data and echo it back.
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#
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from topology import *
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import socket, random, string
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SRC_ADDR = ''
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LINK_ADDR = '172.16.1.2'
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SRC_PORT = 5555
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LISTEN_PORT = 6667
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SENDTO_PORT = 5555
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DATASIZE = 3400
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UDPECHO = "udpecho:" + str(LINK_ADDR) + ":" + str(LISTEN_PORT) + ":" + str(SENDTO_PORT) + ":" + str(DATASIZE)
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print UDPECHO
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T = Topology()
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net1 = Network(T, "pyt0")
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h1 = Host(T, net1, args=UDPECHO)
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str_send = ''.join(random.choice(string.ascii_lowercase) for x in range(DATASIZE))
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#print str_send
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s_udp = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
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s_udp.bind((SRC_ADDR, SRC_PORT))
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s_udp.settimeout(5);
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raw_input("Press enter to continue ...")
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start(T)
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while True:
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s_udp.sendto(str_send, (LINK_ADDR, LISTEN_PORT))
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data = s_udp.recv(DATASIZE)
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#print len(data)
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if len(data) == DATASIZE:
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print '\n\n'
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print '+++++++++++++++++++++++++++++++++++++++++++++'
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print '+++++ reassembly test IS successful +++++'
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print '+++++++++++++++++++++++++++++++++++++++++++++'
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print '\n\n'
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cleanup()
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exit(0)
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print '\n\n'
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print '+++++++++++++++++++++++++++++++++++++++++++++'
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print '+++++ reassembly test NOT successful ++++'
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print '+++++++++++++++++++++++++++++++++++++++++++++'
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print '\n\n'
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cleanup()
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exit(1)
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