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authorNeels Hofmeyr <neels@hofmeyr.de>2017-03-28 14:30:28 +0200
committerNeels Hofmeyr <nhofmeyr@sysmocom.de>2017-04-08 15:43:19 +0200
commit3531a192ae8eeb78c53342454f65327bce4fa57a (patch)
tree2791d8927038eb0e3ffc8c4371955051161a6a5d /src/osmo_gsm_tester/osmo_nitb.py
parentdae3d3c47906379061d57854fd140e8a7a12a25c (diff)
core implementation
code bomb implementing the bulk of the osmo-gsm-tester Change-Id: I53610becbf643ed51b90cfd9debc6992fe211ec9
Diffstat (limited to 'src/osmo_gsm_tester/osmo_nitb.py')
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1 files changed, 155 insertions, 0 deletions
diff --git a/src/osmo_gsm_tester/osmo_nitb.py b/src/osmo_gsm_tester/osmo_nitb.py
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+# osmo_gsm_tester: specifics for running an osmo-nitb
+#
+# 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 Affero 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 Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+import os
+import random
+import re
+import socket
+
+from . import log, util, config, template, process, osmo_ctrl
+
+class OsmoNitb(log.Origin):
+ suite_run = None
+ nitb_iface = None
+ run_dir = None
+ config_file = None
+ process = None
+ bts = None
+
+ def __init__(self, suite_run, nitb_iface):
+ self.suite_run = suite_run
+ self.nitb_iface = nitb_iface
+ self.set_log_category(log.C_RUN)
+ self.set_name('osmo-nitb_%s' % nitb_iface.get('addr'))
+ self.bts = []
+
+ def start(self):
+ self.log('Starting osmo-nitb')
+ self.run_dir = util.Dir(self.suite_run.trial.get_run_dir().new_dir(self.name()))
+ self.configure()
+ inst = util.Dir(self.suite_run.trial.get_inst('openbsc'))
+ binary = os.path.abspath(inst.child('bin', 'osmo-nitb'))
+ if not os.path.isfile(binary):
+ raise RuntimeError('Binary missing: %r' % binary)
+ env = { 'LD_LIBRARY_PATH': os.path.abspath(str(inst)) }
+ 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-nitb.cfg')
+ self.dbg(config_file=self.config_file)
+
+ values = dict(nitb=config.get_defaults('nitb'))
+ config.overlay(values, self.suite_run.config())
+ config.overlay(values, dict(nitb_iface=self.nitb_iface))
+
+ bts_list = []
+ for bts in self.bts:
+ bts_list.append(bts.conf_for_nitb())
+ config.overlay(values, dict(nitb=dict(net=dict(bts_list=bts_list))))
+
+ self.dbg(conf=values)
+
+ with open(self.config_file, 'w') as f:
+ r = template.render('osmo-nitb.cfg', values)
+ self.dbg(r)
+ f.write(r)
+
+ def addr(self):
+ return self.nitb_iface.get('addr')
+
+ def add_bts(self, bts):
+ self.bts.append(bts)
+ bts.set_nitb(self)
+
+ def add_subscriber(self, modem, msisdn=None):
+ if msisdn is None:
+ msisdn = self.suite_run.resources_pool.next_msisdn(modem)
+ modem.set_msisdn(msisdn)
+ self.log('Add subscriber', msisdn=msisdn, imsi=modem.imsi())
+ with self:
+ OsmoNitbCtrl(self).add_subscriber(modem.imsi(), msisdn, modem.ki())
+
+ def subscriber_attached(self, *modems):
+ return all([self.imsi_attached(m.imsi()) for m in modems])
+
+ def imsi_attached(self, imsi):
+ return random.choice((True, False))
+
+ def sms_received(self, sms):
+ return random.choice((True, False))
+
+ def running(self):
+ return not self.process.terminated()
+
+
+class OsmoNitbCtrl(log.Origin):
+ PORT = 4249
+ SUBSCR_MODIFY_VAR = 'subscriber-modify-v1'
+ SUBSCR_MODIFY_REPLY_RE = re.compile("SET_REPLY (\d+) %s OK" % SUBSCR_MODIFY_VAR)
+ SUBSCR_LIST_ACTIVE_VAR = 'subscriber-list-active-v1'
+
+ def __init__(self, nitb):
+ self.nitb = nitb
+ self.set_name('CTRL(%s:%d)' % (self.nitb.addr(), OsmoNitbCtrl.PORT))
+ self.set_child_of(nitb)
+
+ def ctrl(self):
+ return osmo_ctrl.OsmoCtrl(self.nitb.addr(), OsmoNitbCtrl.PORT)
+
+ def add_subscriber(self, imsi, msisdn, ki=None, algo=None):
+ created = False
+ if ki and not algo:
+ algo = 'comp128v1'
+
+ if algo:
+ value = '%s,%s,%s,%s' % (imsi,msisdn,algo,ki)
+ else:
+ value = '%s,%s' % (imsi, msisdn)
+
+ with osmo_ctrl.OsmoCtrl(self.nitb.addr(), OsmoNitbCtrl.PORT) as ctrl:
+ ctrl.do_set(OsmoNitbCtrl.SUBSCR_MODIFY_VAR, value)
+ data = ctrl.receive()
+ (answer, data) = ctrl.remove_ipa_ctrl_header(data)
+ answer_str = answer.decode('utf-8')
+ res = OsmoNitbCtrl.SUBSCR_MODIFY_REPLY_RE.match(answer_str)
+ if not res:
+ raise RuntimeError('Cannot create subscriber %r (answer=%r)' % (imsi, answer_str))
+ self.dbg('Created subscriber', imsi=imsi, msisdn=msisdn)
+ return True
+
+ def subscriber_list_active(self):
+ var = 'subscriber-list-active-v1'
+ aslist_str = ""
+ with osmo_ctrl.OsmoCtrl(self.nitb.addr(), OsmoNitbCtrl.PORT) as ctrl:
+ self.ctrl.do_get(OsmoNitbCtrl.SUBSCR_LIST_ACTIVE_VAR)
+ # this looks like it doesn't work for long data. It's legacy code from the old osmo-gsm-tester.
+ data = self.ctrl.receive()
+ while (len(data) > 0):
+ (answer, data) = self.ctrl.remove_ipa_ctrl_header(data)
+ answer = answer.replace('\n', ' ')
+ aslist_str = answer
+ return aslist_str
+
+# vim: expandtab tabstop=4 shiftwidth=4