osmocom: Add a simple helper to query OpenBSC/NITB for some status
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# Copyright (C) 2012 Holger Hans Peter Freyther
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# VTY helper code for OpenBSC
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#
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import socket
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class _VTYSocket(object):
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def __init__(self, name, host, port):
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self.name = name
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self.host = host
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self.port = port
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def connectSendAndWait(self, request):
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sck = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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sck.setblocking(1)
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sck.connect((self.host, self.port))
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sck.recv(4096)
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end = '\r\n%s> ' % self.name
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# Now send the command
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sck.send("%s\r" % request)
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res = ""
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while True:
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data = sck.recv(4096)
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res = "%s%s" % (res, data)
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if res.endswith(end):
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break
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sck.close()
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return res[len(request) + 2: -len(end)]
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class NITBSocket(object):
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def __init__(self, host):
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self.host = host
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def _vty(self):
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return _VTYSocket('OpenBSC', self.host, 4242)
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def imsi_present(self, imsi):
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res = self._vty().connectSendAndWait('show subscriber imsi %s' % imsi)
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return not res.startswith('% No subscriber found for imsi ')
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def extension(self, imsi):
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if not self.imsi_present(imsi):
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return None
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res = self._vty().connectSendAndWait('show subscriber imsi %s' % imsi)
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return res.split('\r\n')[3].split(': ')[1]
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