65 lines
1.8 KiB
Python
Executable File
65 lines
1.8 KiB
Python
Executable File
#!/usr/bin/python
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# multicast_recv.py
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#
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# Multicast test with PicoTCP receiving and Linux sending
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#
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# (sender) (Receiver)
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# Linux ------------------------ PicoTCP
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# mcast to 224.7.7.7
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#
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from topology import *
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import socket, random, string
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IF_ADDR = '172.16.1.1'
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LINK_ADDR = '172.16.1.2'
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MCAST_ADDR = '224.7.7.7'
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SRC_PORT = 5555
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LISTEN_PORT = 6667
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SENDTO_PORT = 6667
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MCASTRECV = "mcastreceive:" + str(LINK_ADDR) + ":" + str(MCAST_ADDR) + ":" + str(LISTEN_PORT) + ":" + str(SENDTO_PORT)
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print MCASTRECV
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T = Topology()
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net1 = Network(T, "pyt0")
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h1 = Host(T, net1, args=MCASTRECV)
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# sending socket
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s_udp = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
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s_udp.bind((IF_ADDR, SRC_PORT))
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s_udp.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
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s_udp.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, 2)
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s_udp.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_IF, socket.inet_aton(str(IF_ADDR)))
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# receiving socket
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s_udp_recv = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
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s_udp_recv.bind((IF_ADDR, LISTEN_PORT))
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s_udp_recv.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
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s_udp_recv.settimeout(5);
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raw_input("Press enter to continue ...")
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start(T)
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sleep(1)
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while True:
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s_udp.sendto("multicast test succeeded", (str(MCAST_ADDR), LISTEN_PORT))
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data = s_udp_recv.recv(4096)
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#print data
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if 'succeeded' in data:
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print '\n\n'
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print '+++++++++++++++++++++++++++++++++++++++++++++'
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print '+++++ multicast_recv 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 '+++++ multicast_recv 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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