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osmo-gsm-tester
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osmo-gsm-tester/src/osmo_gsm_tester/srs_ue.py

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# osmo_gsm_tester: specifics for running an SRS UE process
#
# Copyright (C) 2020 by sysmocom - s.f.m.c. GmbH
#
# Author: Pau Espin Pedrol <pespin@sysmocom.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, remote
from .run_node import RunNode
from .ms import MS
class srsUE(MS):
REMOTE_DIR = '/osmo-gsm-tester-srsue'
BINFILE = 'srsue'
CFGFILE = 'srsue.conf'
PCAPFILE = 'srsue.pcap'
LOGFILE = 'srsue.log'
def __init__(self, suite_run, conf):
self._addr = conf.get('addr', None)
if self._addr is None:
raise log.Error('addr not set')
super().__init__('srsue_%s' % self._addr, conf)
self.enb = None
self.run_dir = None
self.config_file = None
self.log_file = None
self.pcap_file = None
self.process = None
self.rem_host = None
self.remote_config_file = None
self.remote_log_file = None
self.remote_pcap_file = None
self.suite_run = suite_run
self.nof_prb=50
if self.nof_prb == 75:
self.base_srate=15.36e6
else:
self.base_srate=23.04e6
self.remote_user = conf.get('remote_user', None)
def cleanup(self):
if self.process is None:
return
if self.setup_runs_locally():
return
# copy back files (may not exist, for instance if there was an early error of process):
try:
self.rem_host.scpfrom('scp-back-log', self.remote_log_file, self.log_file)
except Exception as e:
self.log(repr(e))
try:
self.rem_host.scpfrom('scp-back-pcap', self.remote_pcap_file, self.pcap_file)
except Exception as e:
self.log(repr(e))
def setup_runs_locally(self):
return self.remote_user is None
def netns(self):
return "srsue1"
def connect(self, enb):
self.log('Starting srsue')
self.enb = enb
self.run_dir = util.Dir(self.suite_run.get_test_run_dir().new_dir(self.name()))
self.configure()
if self.setup_runs_locally():
self.start_locally()
else:
self.start_remotely()
def start_remotely(self):
self.inst = util.Dir(os.path.abspath(self.suite_run.trial.get_inst('srslte')))
lib = self.inst.child('lib')
if not os.path.isdir(lib):
raise log.Error('No lib/ in', self.inst)
if not self.inst.isfile('bin', srsUE.BINFILE):
raise log.Error('No %s binary in' % srsUE.BINFILE, self.inst)
self.rem_host = remote.RemoteHost(self.run_dir, self.remote_user, self._addr)
remote_prefix_dir = util.Dir(srsUE.REMOTE_DIR)
remote_inst = util.Dir(remote_prefix_dir.child(os.path.basename(str(self.inst))))
remote_run_dir = util.Dir(remote_prefix_dir.child(srsUE.BINFILE))
self.remote_config_file = remote_run_dir.child(srsUE.CFGFILE)
self.remote_log_file = remote_run_dir.child(srsUE.LOGFILE)
self.remote_pcap_file = remote_run_dir.child(srsUE.PCAPFILE)
self.rem_host.recreate_remote_dir(remote_inst)
self.rem_host.scp('scp-inst-to-remote', str(self.inst), remote_prefix_dir)
self.rem_host.create_remote_dir(remote_run_dir)
self.rem_host.scp('scp-cfg-to-remote', self.config_file, self.remote_config_file)
remote_lib = remote_inst.child('lib')
remote_binary = remote_inst.child('bin', srsUE.BINFILE)
# setting capabilities will later disable use of LD_LIBRARY_PATH from ELF loader -> modify RPATH instead.
self.log('Setting RPATH for srsue')
# srsue binary needs patchelf >= 0.9+52 to avoid failing during patch. OS#4389, patchelf-GH#192.
self.rem_host.set_remote_env({'PATCHELF_BIN': '/opt/bin/patchelf-v0.10' })
self.rem_host.change_elf_rpath(remote_binary, remote_lib)
# srsue requires CAP_SYS_ADMIN to cjump to net network namespace: netns(CLONE_NEWNET):
# srsue requires CAP_NET_ADMIN to create tunnel devices: ioctl(TUNSETIFF):
self.log('Applying CAP_SYS_ADMIN+CAP_NET_ADMIN capability to srsue')
self.rem_host.setcap_netsys_admin(remote_binary)
#'strace', '-ff',
args = (remote_binary, self.remote_config_file,
'--rf.device_name=zmq',
'--rf.device_args="tx_port=tcp://'+ self.addr() +':2001,rx_port=tcp://'+ self.enb.addr() +':2000,id=ue,base_srate='+ str(self.base_srate) + '"',
'--phy.nof_phy_threads=1',
'--gw.netns=' + self.netns(),
'--log.filename=' + 'stdout', #self.remote_log_file,
'--pcap.enable=true',
'--pcap.filename=' + self.remote_pcap_file)
self.process = self.rem_host.RemoteProcessFixIgnoreSIGHUP(srsUE.BINFILE, util.Dir(srsUE.REMOTE_DIR), args)
#self.process = self.rem_host.RemoteProcessFixIgnoreSIGHUP(srsUE.BINFILE, remote_run_dir, args, remote_lib)
self.suite_run.remember_to_stop(self.process)
self.process.launch()
def start_locally(self):
inst = util.Dir(os.path.abspath(self.suite_run.trial.get_inst('srslte')))
binary = inst.child('bin', BINFILE)
if not os.path.isfile(binary):
raise log.Error('Binary missing:', binary)
lib = inst.child('lib')
if not os.path.isdir(lib):
raise log.Error('No lib/ in', inst)
env = {}
# setting capabilities will later disable use of LD_LIBRARY_PATH from ELF loader -> modify RPATH instead.
self.log('Setting RPATH for srsue')
util.change_elf_rpath(binary, util.prepend_library_path(lib), self.run_dir.new_dir('patchelf'))
# srsue requires CAP_SYS_ADMIN to cjump to net network namespace: netns(CLONE_NEWNET):
# srsue requires CAP_NET_ADMIN to create tunnel devices: ioctl(TUNSETIFF):
self.log('Applying CAP_SYS_ADMIN+CAP_NET_ADMIN capability to srsue')
util.setcap_netsys_admin(binary, self.run_dir.new_dir('setcap_netsys_admin'))
args = (binary, os.path.abspath(self.config_file),
'--rf.device_name=zmq',
'--rf.device_args="tx_port=tcp://'+ self.addr() +':2001,rx_port=tcp://'+ self.enb.addr() +':2000,id=ue,base_srate='+ str(self.base_srate) + '"',
'--phy.nof_phy_threads=1',
'--gw.netns=' + self.netns(),
'--log.filename=' + self.log_file,
'--pcap.enable=true',
'--pcap.filename=' + self.pcap_file)
self.dbg(run_dir=self.run_dir, binary=binary, env=env)
self.process = process.Process(self.name(), self.run_dir, args, env=env)
self.suite_run.remember_to_stop(self.process)
self.process.launch()
def configure(self):
self.config_file = self.run_dir.new_file(srsUE.CFGFILE)
self.log_file = self.run_dir.child(srsUE.LOGFILE)
self.pcap_file = self.run_dir.new_file(srsUE.PCAPFILE)
self.dbg(config_file=self.config_file)
values = dict(ue=config.get_defaults('srsue'))
config.overlay(values, self.suite_run.config())
config.overlay(values, dict(ue=self._conf))
self.dbg('SRSUE CONFIG:\n' + pprint.pformat(values))
with open(self.config_file, 'w') as f:
r = template.render(srsUE.CFGFILE, values)
self.dbg(r)
f.write(r)
def is_connected(self, mcc_mnc=None):
return 'Network attach successful.' in (self.process.get_stdout() or '')
def is_attached(self):
return self.is_connected()
def running(self):
return not self.process.terminated()
def addr(self):
return self._addr
def run_node(self):
# TODO: move to an object
return RunNode(RunNode.T_REM_SSH, self._addr, self.remote_user, self._addr)
def run_netns_wait(self, name, popen_args):
if self.setup_runs_locally():
proc = process.NetNSProcess(name, self.run_dir.new_dir(name), self.netns(), popen_args, env={})
else:
proc = self.rem_host.RemoteNetNSProcess(name, self.netns(), popen_args, env={})
proc.launch_sync()
# vim: expandtab tabstop=4 shiftwidth=4
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