Porting PicoTCP WIP

kernel/picotcp/test/python/reassembly.py

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