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# osmo_gsm_tester: specifics for running an osmo-msc
#
# Copyright (C) 2016-2017 by sysmocom - s.f.m.c. GmbH
#
# Author: Neels Hofmeyr <neels@hofmeyr.de>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import os
import pprint
from . import log, util, config, template, process, osmo_ctrl, pcap_recorder, smsc
class OsmoMsc(log.Origin):
suite_run = None
ip_address = None
run_dir = None
config_file = None
process = None
hlr = None
config = None
smsc = None
encryption = None
authentication = None
def __init__(self, suite_run, hlr, mgw, ip_address):
super().__init__(log.C_RUN, 'osmo-msc_%s' % ip_address.get('addr'))
self.suite_run = suite_run
self.ip_address = ip_address
self.hlr = hlr
self.mgw = mgw
self.smsc = smsc.Smsc((ip_address.get('addr'), 2775))
def start(self):
self.log('Starting osmo-msc')
self.run_dir = util.Dir(self.suite_run.get_test_run_dir().new_dir(self.name()))
self.configure()
inst = util.Dir(os.path.abspath(self.suite_run.trial.get_inst('osmo-msc')))
binary = inst.child('bin', 'osmo-msc')
if not os.path.isfile(binary):
raise RuntimeError('Binary missing: %r' % binary)
lib = inst.child('lib')
if not os.path.isdir(lib):
raise RuntimeError('No lib/ in %r' % inst)
iface = util.ip_to_iface(self.addr())
pcap_recorder.PcapRecorder(self.suite_run, self.run_dir.new_dir('pcap'), iface,
'host %s and port not 22' % self.addr())
env = { 'LD_LIBRARY_PATH': util.prepend_library_path(lib) }
self.dbg(run_dir=self.run_dir, binary=binary, env=env)
self.process = process.Process(self.name(), self.run_dir,
(binary, '-c',
os.path.abspath(self.config_file)),
env=env)
self.suite_run.remember_to_stop(self.process)
self.process.launch()
def configure(self):
self.config_file = self.run_dir.new_file('osmo-msc.cfg')
self.dbg(config_file=self.config_file)
values = dict(msc=config.get_defaults('msc'))
config.overlay(values, self.suite_run.config())
config.overlay(values, dict(msc=dict(ip_address=self.ip_address)))
config.overlay(values, self.mgw.conf_for_msc())
config.overlay(values, self.hlr.conf_for_msc())
config.overlay(values, self.smsc.get_config())
# runtime parameters:
if self.encryption is not None:
encryption_vty = util.encryption2osmovty(self.encryption)
else:
encryption_vty = util.encryption2osmovty(values['msc']['net']['encryption'])
config.overlay(values, dict(msc=dict(net=dict(encryption=encryption_vty))))
if self.authentication is not None:
config.overlay(values, dict(msc=dict(net=dict(authentication=self.authentication))))
self.config = values
self.dbg('MSC CONFIG:\n' + pprint.pformat(values))
with open(self.config_file, 'w') as f:
r = template.render('osmo-msc.cfg', values)
self.dbg(r)
f.write(r)
def addr(self):
return self.ip_address.get('addr')
def set_encryption(self, val):
self.encryption = val
def set_authentication(self, val):
if val is None:
self.authroziation = None
return
self.authentication = "required" if val else "optional"
def mcc(self):
return self.config['msc']['net']['mcc']
def mnc(self):
return self.config['msc']['net']['mnc']
def mcc_mnc(self):
return (self.mcc(), self.mnc())
def subscriber_attached(self, *modems):
return self.imsi_attached(*[m.imsi() for m in modems])
def imsi_attached(self, *imsis):
attached = self.imsi_list_attached()
log.dbg('attached:', attached)
return all([(imsi in attached) for imsi in imsis])
def imsi_list_attached(self):
return OsmoMscCtrl(self).subscriber_list_active()
def running(self):
return not self.process.terminated()
class OsmoMscCtrl(log.Origin):
PORT = 4255
SUBSCR_LIST_ACTIVE_VAR = 'subscriber-list-active-v1'
def __init__(self, msc):
self.msc = msc
super().__init__(log.C_BUS, 'CTRL(%s:%d)' % (self.msc.addr(), self.PORT))
def ctrl(self):
return osmo_ctrl.OsmoCtrl(self.msc.addr(), self.PORT)
def subscriber_list_active(self):
aslist_str = ""
with self.ctrl() as ctrl:
ctrl.do_get(self.SUBSCR_LIST_ACTIVE_VAR)
# This is legacy code from the old osmo-gsm-tester.
# looks like this doesn't work for long data.
data = ctrl.receive()
while (len(data) > 0):
(answer, data) = ctrl.remove_ipa_ctrl_header(data)
answer_str = answer.decode('utf-8')
answer_str = answer_str.replace('\n', ' ')
aslist_str = answer_str
return aslist_str
# vim: expandtab tabstop=4 shiftwidth=4
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