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85929a7be7
This is the first step in creating this repository from the legacy openbsc.git. Like all other Osmocom repositories, keep the autoconf and automake files in the repository root. openbsc.git has been the sole exception, which ends now. Change-Id: I9c6f2a448d9cb1cc088cf1cf6918b69d7e69b4e7
61 lines
2.2 KiB
Python
Executable File
61 lines
2.2 KiB
Python
Executable File
#!/usr/bin/env python
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# Simple server for mgcp... send audit, receive response..
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import socket, time
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MGCP_GATEWAY_PORT = 2427
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MGCP_CALLAGENT_PORT = 2727
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rsip_resp = """200 321321332\r\n"""
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audit_packet = """AUEP %d 13@mgw MGCP 1.0\r\n"""
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crcx_packet = """CRCX %d 14@mgw MGCP 1.0\r\nC: 4a84ad5d25f\r\nL: p:20, a:GSM-EFR, nt:IN\r\nM: recvonly\r\n"""
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dlcx_packet = """DLCX %d 14@mgw MGCP 1.0\r\nC: 4a84ad5d25f\r\nI: %d\r\n"""
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mdcx_packet = """MDCX %d 14@mgw MGCP 1.0\r\nC: 4a84ad5d25f\r\nI: %d\r\nL: p:20, a:GSM-EFR, nt:IN\r\nM: recvonly\r\n\r\nv=0\r\no=- 258696477 0 IN IP4 172.16.1.107\r\ns=-\r\nc=IN IP4 172.16.1.107\r\nt=0 0\r\nm=audio 6666 RTP/AVP 127\r\na=rtpmap:127 GSM-EFR/8000/1\r\na=ptime:20\r\na=recvonly\r\nm=image 4402 udptl t38\r\na=T38FaxVersion:0\r\na=T38MaxBitRate:14400\r\n"""
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def hexdump(src, length=8):
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"""Recipe is from http://code.activestate.com/recipes/142812/"""
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result = []
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digits = 4 if isinstance(src, unicode) else 2
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for i in xrange(0, len(src), length):
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s = src[i:i+length]
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hexa = b' '.join(["%0*X" % (digits, ord(x)) for x in s])
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text = b''.join([x if 0x20 <= ord(x) < 0x7F else b'.' for x in s])
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result.append( b"%04X %-*s %s" % (i, length*(digits + 1), hexa, text) )
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return b'\n'.join(result)
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server_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
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server_socket.bind(("127.0.0.1", MGCP_CALLAGENT_PORT))
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server_socket.setblocking(1)
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last_ci = 1
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def send_and_receive(packet):
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global last_ci
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server_socket.sendto(packet, ("127.0.0.1", MGCP_GATEWAY_PORT))
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try:
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data, addr = server_socket.recvfrom(4096)
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# attempt to store the CI of the response
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list = data.split("\n")
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for item in list:
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if item.startswith("I: "):
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last_ci = int(item[3:])
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print hexdump(data), addr
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except socket.error, e:
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print e
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pass
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def generate_tid():
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import random
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return random.randint(0, 65123)
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while True:
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send_and_receive(audit_packet % generate_tid())
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send_and_receive(crcx_packet % generate_tid() )
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send_and_receive(mdcx_packet % (generate_tid(), last_ci))
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send_and_receive(dlcx_packet % (generate_tid(), last_ci))
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time.sleep(3)
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