| # 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 stat |
| import pprint |
| from abc import ABCMeta, abstractmethod |
| from . import log, config, util, template, process, bts_osmo |
| from .event_loop import MainLoop |
| |
| class OsmoBtsTrx(bts_osmo.OsmoBtsMainUnit): |
| ############## |
| # PROTECTED |
| ############## |
| |
| 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__(suite_run, conf, OsmoBtsTrx.BIN_BTS_TRX, 'osmo_bts_trx') |
| self.run_dir = None |
| self.inst = None |
| self.trx = None |
| self.env = {} |
| self.gen_conf = {} |
| |
| def trx_remote_ip(self): |
| conf_ip = self.conf.get('osmo_trx', {}).get('trx_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_process(self, keepalive, 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, keepalive) |
| 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, dict(osmo_bts_trx=dict(osmo_trx=config.get_defaults('osmo_trx')))) |
| config.overlay(values, self.suite_run.config()) |
| config.overlay(values, { |
| 'osmo_bts_trx': { |
| 'oml_remote_ip': self.bsc.addr(), |
| 'pcu_socket_path': self.pcu_socket_path(), |
| 'osmo_trx': { |
| 'bts_ip': self.remote_addr(), |
| 'trx_ip': self.trx_remote_ip(), |
| 'egprs': 'enable' if self.conf_for_bsc()['gprs_mode'] == 'egprs' else 'disable', |
| 'channels': [{} for trx_i in range(self.num_trx())] |
| } |
| } |
| }) |
| config.overlay(values, { 'osmo_bts_trx': self.conf }) |
| |
| self.gen_conf = values |
| 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 launch_trx_enabled(self): |
| return util.str2bool(self.gen_conf['osmo_bts_trx'].get('osmo_trx', {}).get('launch_trx')) |
| |
| def get_osmo_trx_type(self): |
| return self.gen_conf['osmo_bts_trx'].get('osmo_trx', {}).get('type') |
| |
| ######################## |
| # PUBLIC - INTERNAL API |
| ######################## |
| def conf_for_bsc(self): |
| values = self.conf_for_bsc_prepare() |
| self.dbg(conf=values) |
| return values |
| |
| def conf_for_osmotrx(self): |
| return dict(osmo_trx=self.gen_conf['osmo_bts_trx'].get('osmo_trx', {})) |
| |
| ################### |
| # PUBLIC (test API included) |
| ################### |
| def start(self, keepalive=False): |
| 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.get_instance_by_type(self.get_osmo_trx_type(), self.suite_run, self.conf_for_osmotrx()) |
| self.trx.start(keepalive) |
| self.log('Waiting for %s to start up...' % self.trx.name()) |
| MainLoop.wait(self, self.trx.trx_ready) |
| |
| self.inst = util.Dir(os.path.abspath(self.suite_run.trial.get_inst('osmo-bts'))) |
| 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.proc_bts = self.launch_process(keepalive, OsmoBtsTrx.BIN_BTS_TRX, '-r', '1', |
| '-c', os.path.abspath(self.config_file), |
| '-i', self.bsc.addr(), |
| '-t', str(self.num_trx())) |
| self.suite_run.poll() |
| |
| class OsmoTrx(log.Origin, metaclass=ABCMeta): |
| |
| CONF_OSMO_TRX = 'osmo-trx.cfg' |
| REMOTE_DIR = '/osmo-gsm-tester-trx/last_run' |
| WRAPPER_SCRIPT = 'ssh_sigkiller.sh' |
| |
| ############## |
| # PROTECTED |
| ############## |
| def __init__(self, suite_run, conf): |
| super().__init__(log.C_RUN, self.binary_name()) |
| self.suite_run = suite_run |
| self.conf = conf |
| self.env = {} |
| self.log("OSMOTRX CONF: %r" % conf) |
| self.listen_ip = conf.get('osmo_trx', {}).get('trx_ip') |
| self.bts_ip = conf.get('osmo_trx', {}).get('bts_ip') |
| self.remote_user = conf.get('osmo_trx', {}).get('remote_user', None) |
| self.run_dir = None |
| self.inst = None |
| self.proc_trx = None |
| |
| @classmethod |
| def get_instance_by_type(cls, type, suite_run, conf): |
| KNOWN_OSMOTRX_TYPES = { |
| 'uhd': OsmoTrxUHD, |
| 'lms': OsmoTrxLMS, |
| } |
| osmo_trx_class = KNOWN_OSMOTRX_TYPES.get(type) |
| return osmo_trx_class(suite_run, conf) |
| |
| @abstractmethod |
| def binary_name(self): |
| 'Used by base class. Subclass can create different OsmoTRX implementations.' |
| pass |
| |
| def configure(self): |
| self.config_file = self.run_dir.new_file(OsmoTrx.CONF_OSMO_TRX) |
| self.dbg(config_file=self.config_file) |
| |
| values = self.conf |
| |
| # we don't need to enable multi-arfcn for single channel |
| if len(values.get('osmo_trx', {}).get('channels', [])) > 1: |
| multi_arfcn_bool = util.str2bool(values.get('osmo_trx', {}).get('multi_arfcn', False)) |
| else: |
| multi_arfcn_bool = False |
| config.overlay(values, { 'osmo_trx': { 'multi_arfcn': multi_arfcn_bool } }) |
| |
| self.dbg('OSMO-TRX CONFIG:\n' + pprint.pformat(values)) |
| |
| with open(self.config_file, 'w') as f: |
| r = template.render(OsmoTrx.CONF_OSMO_TRX, values) |
| self.dbg(r) |
| f.write(r) |
| |
| def launch_process_local(self, keepalive, 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, keepalive) |
| proc.launch() |
| return proc |
| |
| def launch_process_remote(self, name, popen_args, remote_cwd=None, keepalive=False): |
| run_dir = self.run_dir.new_dir(name) |
| proc = process.RemoteProcess(name, run_dir, self.remote_user, self.listen_ip, remote_cwd, |
| popen_args) |
| self.suite_run.remember_to_stop(proc, keepalive) |
| proc.launch() |
| return proc |
| |
| def generate_wrapper_script(self): |
| wrapper_script = self.run_dir.new_file(OsmoTrx.WRAPPER_SCRIPT) |
| with open(wrapper_script, 'w') as f: |
| r = """#!/bin/bash |
| mypid=0 |
| sign_handler() { |
| sig=$1 |
| echo "received signal handler $sig, killing $mypid" |
| kill $mypid |
| } |
| trap 'sign_handler SIGINT' SIGINT |
| trap 'sign_handler SIGHUP' SIGHUP |
| "$@" & |
| mypid=$! |
| echo "waiting for $mypid" |
| wait $mypid |
| """ |
| f.write(r) |
| st = os.stat(wrapper_script) |
| os.chmod(wrapper_script, st.st_mode | stat.S_IEXEC) |
| return wrapper_script |
| |
| ############## |
| # PUBLIC (test API included) |
| ############## |
| def start(self, keepalive=False): |
| self.run_dir = util.Dir(self.suite_run.get_test_run_dir().new_dir(self.name())) |
| self.configure() |
| self.inst = util.Dir(os.path.abspath(self.suite_run.trial.get_inst('osmo-trx'))) |
| if not self.remote_user: |
| # Run locally if ssh user is not set |
| lib = self.inst.child('lib') |
| self.env = { 'LD_LIBRARY_PATH': util.prepend_library_path(lib) } |
| self.proc_trx = self.launch_process_local(keepalive, self.binary_name(), |
| '-C', os.path.abspath(self.config_file)) |
| else: |
| # Run remotely through ssh. We need to run osmo-trx under a wrapper |
| # script since osmo-trx ignores SIGHUP and will keep running after |
| # we close local ssh session. The wrapper script catches SIGHUP and |
| # sends SIGINT to it. |
| wrapper_script = self.generate_wrapper_script() |
| remote_run_dir = util.Dir(OsmoTrx.REMOTE_DIR) |
| self.remote_inst = process.copy_inst_ssh(self.run_dir, self.inst, remote_run_dir, self.remote_user, |
| self.listen_ip, self.binary_name(), self.config_file) |
| remote_wrapper_script = remote_run_dir.child(OsmoTrx.WRAPPER_SCRIPT) |
| remote_config_file = remote_run_dir.child(OsmoTrx.CONF_OSMO_TRX) |
| remote_lib = self.remote_inst.child('lib') |
| remote_binary = self.remote_inst.child('bin', self.binary_name()) |
| process.scp(self.run_dir, self.remote_user, self.listen_ip, 'scp-wrapper-to-remote', wrapper_script, remote_wrapper_script) |
| |
| args = ('LD_LIBRARY_PATH=%s' % remote_lib, remote_wrapper_script, remote_binary, '-C', remote_config_file) |
| self.proc_trx = self.launch_process_remote(self.binary_name(), args, remote_cwd=remote_run_dir, keepalive=keepalive) |
| |
| 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 '') |
| |
| class OsmoTrxUHD(OsmoTrx): |
| BIN_TRX = 'osmo-trx-uhd' |
| |
| def __init__(self, suite_run, conf): |
| super().__init__(suite_run, conf) |
| |
| def binary_name(self): |
| return OsmoTrxUHD.BIN_TRX |
| |
| class OsmoTrxLMS(OsmoTrx): |
| BIN_TRX = 'osmo-trx-lms' |
| |
| def __init__(self, suite_run, conf): |
| super().__init__(suite_run, conf) |
| self.conf['osmo_trx']['channels'][0]['rx_path'] = 'LNAW' |
| |
| def binary_name(self): |
| return OsmoTrxLMS.BIN_TRX |
| |
| # vim: expandtab tabstop=4 shiftwidth=4 |