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# osmo_gsm_tester: specifics for running an osmo-bts-trx
#
# 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
import tempfile
from . import log, config, util, template, process, event_loop
class OsmoBtsTrx(log.Origin):
suite_run = None
bsc = None
run_dir = None
inst = None
env = None
trx = None
pcu_sk_tmp_dir = None
BIN_BTS_TRX = 'osmo-bts-trx'
BIN_PCU = 'osmo-pcu'
CONF_BTS_TRX = 'osmo-bts-trx.cfg'
def __init__(self, suite_run, conf):
super().__init__(log.C_RUN, OsmoBtsTrx.BIN_BTS_TRX)
self.suite_run = suite_run
self.conf = conf
self.env = {}
self.pcu_sk_tmp_dir = tempfile.mkdtemp(None, 'ogtpcusk', None)
if len(self.pcu_socket_path().encode()) > 107:
raise log.Error('Path for pcu socket is longer than max allowed len for unix socket path (107):', self.pcu_socket_path())
def cleanup(self):
if self.pcu_sk_tmp_dir:
try:
os.remove(self.pcu_socket_path())
except OSError:
pass
os.rmdir(self.pcu_sk_tmp_dir)
def pcu_socket_path(self):
return os.path.join(self.pcu_sk_tmp_dir, 'pcu_bts')
def remote_addr(self):
return self.conf.get('addr')
def trx_remote_ip(self):
conf_ip = self.conf.get('trx_remote_ip', None)
if conf_ip is not None:
return conf_ip
# if 'trx_remote_ip' is not configured, use same IP as BTS
return self.remote_addr()
def launch_trx_enabled(self):
return util.str2bool(self.conf.get('launch_trx'))
def start(self):
if self.bsc is None:
raise RuntimeError('BTS needs to be added to a BSC or NITB before it can be started')
self.suite_run.poll()
self.log('Starting to connect to', self.bsc)
self.run_dir = util.Dir(self.suite_run.get_test_run_dir().new_dir(self.name()))
self.configure()
if self.launch_trx_enabled():
self.trx = OsmoTrx(self.suite_run, self.trx_remote_ip(), self.remote_addr())
self.trx.start()
self.log('Waiting for osmo-trx to start up...')
event_loop.wait(self, self.trx.trx_ready)
self.inst = util.Dir(os.path.abspath(self.suite_run.trial.get_inst(OsmoBtsTrx.BIN_BTS_TRX)))
lib = self.inst.child('lib')
if not os.path.isdir(lib):
raise RuntimeError('No lib/ in %r' % self.inst)
self.env = { 'LD_LIBRARY_PATH': util.prepend_library_path(lib) }
self.launch_process(OsmoBtsTrx.BIN_BTS_TRX, '-r', '1',
'-c', os.path.abspath(self.config_file),
'-i', self.bsc.addr())
#self.launch_process(OsmoBtsTrx.BIN_PCU, '-r', '1')
self.suite_run.poll()
def launch_process(self, binary_name, *args):
binary = os.path.abspath(self.inst.child('bin', binary_name))
run_dir = self.run_dir.new_dir(binary_name)
if not os.path.isfile(binary):
raise RuntimeError('Binary missing: %r' % binary)
proc = process.Process(binary_name, run_dir,
(binary,) + args,
env=self.env)
self.suite_run.remember_to_stop(proc)
proc.launch()
return proc
def configure(self):
if self.bsc is None:
raise RuntimeError('BTS needs to be added to a BSC or NITB before it can be configured')
self.config_file = self.run_dir.new_file(OsmoBtsTrx.CONF_BTS_TRX)
self.dbg(config_file=self.config_file)
values = dict(osmo_bts_trx=config.get_defaults('osmo_bts_trx'))
config.overlay(values, self.suite_run.config())
config.overlay(values, {
'osmo_bts_trx': {
'oml_remote_ip': self.bsc.addr(),
'trx_local_ip': self.remote_addr(),
'trx_remote_ip': self.trx_remote_ip(),
'pcu_socket_path': self.pcu_socket_path(),
}
})
config.overlay(values, { 'osmo_bts_trx': self.conf })
self.dbg('OSMO-BTS-TRX CONFIG:\n' + pprint.pformat(values))
with open(self.config_file, 'w') as f:
r = template.render(OsmoBtsTrx.CONF_BTS_TRX, values)
self.dbg(r)
f.write(r)
def conf_for_bsc(self):
values = config.get_defaults('bsc_bts')
config.overlay(values, config.get_defaults('osmo_bts_trx'))
config.overlay(values, self.conf)
self.dbg(conf=values)
return values
def set_bsc(self, bsc):
self.bsc = bsc
class OsmoTrx(log.Origin):
suite_run = None
run_dir = None
inst = None
env = None
proc_trx = None
BIN_TRX = 'osmo-trx'
def __init__(self, suite_run, listen_ip, bts_ip):
super().__init__(log.C_RUN, OsmoTrx.BIN_TRX)
self.suite_run = suite_run
self.env = {}
self.listen_ip = listen_ip
self.bts_ip = bts_ip
def start(self):
self.run_dir = util.Dir(self.suite_run.get_test_run_dir().new_dir(self.name()))
self.inst = util.Dir(os.path.abspath(self.suite_run.trial.get_inst(OsmoTrx.BIN_TRX)))
lib = self.inst.child('lib')
self.env = { 'LD_LIBRARY_PATH': util.prepend_library_path(lib) }
self.proc_trx = self.launch_process(OsmoTrx.BIN_TRX, '-x', '-j', self.listen_ip, '-i', self.bts_ip)
def launch_process(self, binary_name, *args):
binary = os.path.abspath(self.inst.child('bin', binary_name))
run_dir = self.run_dir.new_dir(binary_name)
if not os.path.isfile(binary):
raise RuntimeError('Binary missing: %r' % binary)
proc = process.Process(binary_name, run_dir,
(binary,) + args,
env=self.env)
self.suite_run.remember_to_stop(proc)
proc.launch()
return proc
def trx_ready(self):
if not self.proc_trx or not self.proc_trx.is_running:
return False
return '-- Transceiver active with' in (self.proc_trx.get_stdout() or '')
# vim: expandtab tabstop=4 shiftwidth=4
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