diff options
Diffstat (limited to 'openbsc/contrib/mgcp_server.py')
| -rwxr-xr-x | openbsc/contrib/mgcp_server.py | 30 |
1 files changed, 18 insertions, 12 deletions
diff --git a/openbsc/contrib/mgcp_server.py b/openbsc/contrib/mgcp_server.py index cf3ef3845..05c489db5 100755 --- a/openbsc/contrib/mgcp_server.py +++ b/openbsc/contrib/mgcp_server.py @@ -10,7 +10,7 @@ rsip_resp = """200 321321332\r\n""" audit_packet = """AUEP %d 13@mgw MGCP 1.0\r\n""" 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""" dlcx_packet = """DLCX %d 14@mgw MGCP 1.0\r\nC: 4a84ad5d25f\r\nI: %d\r\n""" -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 4400 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""" +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""" def hexdump(src, length=8): """Recipe is from http://code.activestate.com/recipes/142812/""" @@ -25,15 +25,24 @@ def hexdump(src, length=8): server_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) server_socket.bind(("127.0.0.1", MGCP_CALLAGENT_PORT)) -server_socket.setblocking(0) +server_socket.setblocking(1) - -def send_receive(packet): +last_ci = 1 +def send_and_receive(packet): + global last_ci server_socket.sendto(packet, ("127.0.0.1", MGCP_GATEWAY_PORT)) try: data, addr = server_socket.recvfrom(4096) + + # attempt to store the CI of the response + list = data.split("\n") + for item in list: + if item.startswith("I: "): + last_ci = int(item[3:]) + print hexdump(data), addr - except socket.error: + except socket.error, e: + print e pass def generate_tid(): @@ -42,13 +51,10 @@ def generate_tid(): -i = 1 while True: - send_receive(rsip_resp) - send_receive(audit_packet) - send_receive(crcx_packet % generate_tid() ) - send_receive(mdcx_packet % (generate_tid(), i)) - send_receive(dlcx_packet % (generate_tid(), i)) - i = i + 1 + send_and_receive(audit_packet % generate_tid()) + send_and_receive(crcx_packet % generate_tid() ) + send_and_receive(mdcx_packet % (generate_tid(), last_ci)) + send_and_receive(dlcx_packet % (generate_tid(), last_ci)) time.sleep(3) |