514 lines
22 KiB
Python
514 lines
22 KiB
Python
# osmo_gsm_tester: specifics for running an SRS UE process
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#
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# Copyright (C) 2020 by sysmocom - s.f.m.c. GmbH
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#
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# Author: Pau Espin Pedrol <pespin@sysmocom.de>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import os
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import pprint
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import re
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from ..core import log, util, config, template, process, remote
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from ..core import schema
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from .run_node import RunNode
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from .ms import MS
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from .srslte_common import srslte_common
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def rf_type_valid(rf_type_str):
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return rf_type_str in ('zmq', 'uhd', 'soapy', 'bladerf')
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def on_register_schemas():
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resource_schema = {
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'rf_dev_type': schema.STR,
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'rf_dev_args': schema.STR,
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'rf_dev_sync': schema.STR,
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'num_carriers': schema.UINT,
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'num_nr_carriers': schema.UINT,
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'additional_args[]': schema.STR,
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'airplane_t_on_ms': schema.INT,
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'airplane_t_off_ms': schema.INT,
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'tx_gain': schema.INT,
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'rx_gain': schema.INT,
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'freq_offset': schema.INT,
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'force_ul_amplitude': schema.STR,
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'dl_freq': schema.STR,
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'ul_freq': schema.STR
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}
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for key, val in RunNode.schema().items():
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resource_schema['run_node.%s' % key] = val
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schema.register_resource_schema('modem', resource_schema)
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config_schema = {
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'enable_pcap': schema.BOOL_STR,
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'log_all_level': schema.STR,
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'log_nas_level': schema.STR,
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'nr_short_sn_support': schema.BOOL_STR,
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'rrc_release': schema.INT,
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'ue_category': schema.INT,
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'ue_category_dl': schema.INT,
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'ue_category_ul': schema.INT,
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}
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schema.register_config_schema('modem', config_schema)
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#reference: srsLTE.git srslte_symbol_sz()
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def num_prb2symbol_sz(num_prb):
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if num_prb == 6:
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return 128
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if num_prb == 50:
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return 768
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if num_prb == 75:
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return 1024
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return 1536
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def num_prb2base_srate(num_prb):
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return num_prb2symbol_sz(num_prb) * 15 * 1000
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class srsUE(MS, srslte_common):
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REMOTE_DIR = '/osmo-gsm-tester-srsue'
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BINFILE = 'srsue'
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CFGFILE = 'srsue.conf'
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PCAPFILE = 'srsue.pcap'
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LOGFILE = 'srsue.log'
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METRICSFILE = 'srsue_metrics.csv'
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def __init__(self, testenv, conf):
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self._run_node = RunNode.from_conf(conf.get('run_node', {}))
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super().__init__('srsue_%s' % self.addr(), testenv, conf)
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srslte_common.__init__(self)
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self.enb = None
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self.run_dir = None
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self.config_file = None
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self.log_file = None
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self.pcap_file = None
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self.metrics_file = None
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self.have_metrics_file = False
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self.process = None
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self.rem_host = None
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self.remote_inst = None
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self.remote_run_dir = None
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self.remote_config_file = None
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self.remote_log_file = None
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self.remote_pcap_file = None
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self.remote_metrics_file = None
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self.enable_pcap = False
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self.num_carriers = 1
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self.num_nr_carriers = 0
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self._additional_args = []
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if not rf_type_valid(conf.get('rf_dev_type', None)):
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raise log.Error('Invalid rf_dev_type=%s' % conf.get('rf_dev_type', None))
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self._zmq_base_bind_port = None
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if conf.get('rf_dev_type') == 'zmq':
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# Define all 4 possible local RF ports (2x CA with 2x2 MIMO)
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self._zmq_base_bind_port = self.testenv.suite().resource_pool().next_zmq_port_range(self, 4)
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def cleanup(self):
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if self.process is None:
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return
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if self._run_node.is_local():
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return
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# Make sure we give the UE time to tear down
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self.sleep_after_stop()
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# copy back files (may not exist, for instance if there was an early error of process):
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self.scp_back_metrics(raiseException=False)
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try:
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self.rem_host.scpfrom('scp-back-log', self.remote_log_file, self.log_file)
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except Exception as e:
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self.log(repr(e))
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if self.enable_pcap:
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try:
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self.rem_host.scpfrom('scp-back-pcap', self.remote_pcap_file, self.pcap_file)
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except Exception as e:
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self.log(repr(e))
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# Collect KPIs for each TC
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self.testenv.test().set_kpis(self.get_kpi_tree())
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def features(self):
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return self._conf.get('features', [])
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def scp_back_metrics(self, raiseException=True):
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''' Copy back metrics only if they have not been copied back yet '''
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if not self.have_metrics_file:
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# file is not properly flushed until the process has stopped.
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if self.running():
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self.stop()
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# only SCP back if not running locally
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if not self._run_node.is_local():
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try:
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self.rem_host.scpfrom('scp-back-metrics', self.remote_metrics_file, self.metrics_file)
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except Exception as e:
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if raiseException:
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self.err('Failed copying back metrics file from remote host')
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raise e
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else:
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# only log error
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self.log(repr(e))
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# make sure to only call it once
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self.have_metrics_file = True
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else:
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self.dbg('Metrics have already been copied back')
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def netns(self):
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return "srsue1"
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def zmq_base_bind_port(self):
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return self._zmq_base_bind_port
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def connect(self, enb):
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self.log('Starting srsue')
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self.enb = enb
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self.run_dir = util.Dir(self.testenv.test().get_run_dir().new_dir(self.name()))
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self.configure()
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if self._run_node.is_local():
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self.start_locally()
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else:
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self.start_remotely()
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# send t+Enter to enable console trace
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self.dbg('Enabling console trace')
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self.process.stdin_write('t\n')
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def start_remotely(self):
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remote_lib = self.remote_inst.child('lib')
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remote_binary = self.remote_inst.child('bin', srsUE.BINFILE)
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# setting capabilities will later disable use of LD_LIBRARY_PATH from ELF loader -> modify RPATH instead.
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self.log('Setting RPATH for srsue')
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# srsue binary needs patchelf >= 0.9+52 to avoid failing during patch. OS#4389, patchelf-GH#192.
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self.rem_host.change_elf_rpath(remote_binary, remote_lib)
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# srsue requires CAP_SYS_ADMIN to jump to net network namespace: netns(CLONE_NEWNET):
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# srsue requires CAP_NET_ADMIN to create tunnel devices: ioctl(TUNSETIFF):
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self.log('Applying CAP_SYS_ADMIN+CAP_NET_ADMIN capability to srsue')
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self.rem_host.setcap_netsys_admin(remote_binary)
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self.log('Creating netns %s' % self.netns())
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self.rem_host.create_netns(self.netns())
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args = (remote_binary, self.remote_config_file, '--gw.netns=' + self.netns())
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args += tuple(self._additional_args)
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self.process = self.rem_host.RemoteProcessSafeExit(srsUE.BINFILE, self.remote_run_dir, args)
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self.testenv.remember_to_stop(self.process)
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self.process.launch()
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def start_locally(self):
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binary = self.inst.child('bin', srsUE.BINFILE)
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lib = self.inst.child('lib')
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env = {}
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# setting capabilities will later disable use of LD_LIBRARY_PATH from ELF loader -> modify RPATH instead.
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self.log('Setting RPATH for srsue')
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util.change_elf_rpath(binary, util.prepend_library_path(lib), self.run_dir.new_dir('patchelf'))
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# srsue requires CAP_SYS_ADMIN to jump to net network namespace: netns(CLONE_NEWNET):
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# srsue requires CAP_NET_ADMIN to create tunnel devices: ioctl(TUNSETIFF):
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self.log('Applying CAP_SYS_ADMIN+CAP_NET_ADMIN capability to srsue')
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util.setcap_netsys_admin(binary, self.run_dir.new_dir('setcap_netsys_admin'))
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self.log('Creating netns %s' % self.netns())
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util.create_netns(self.netns(), self.run_dir.new_dir('create_netns'))
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args = (binary, os.path.abspath(self.config_file), '--gw.netns=' + self.netns())
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args += tuple(self._additional_args)
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self.process = process.Process(self.name(), self.run_dir, args, env=env)
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self.testenv.remember_to_stop(self.process)
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self.process.launch()
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def configure(self):
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self.inst = util.Dir(os.path.abspath(self.testenv.suite().trial().get_inst('srslte', self._run_node.run_label())))
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if not os.path.isdir(self.inst.child('lib')):
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raise log.Error('No lib/ in', self.inst)
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if not self.inst.isfile('bin', srsUE.BINFILE):
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raise log.Error('No %s binary in' % srsUE.BINFILE, self.inst)
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self.config_file = self.run_dir.child(srsUE.CFGFILE)
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self.log_file = self.run_dir.child(srsUE.LOGFILE)
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self.pcap_file = self.run_dir.child(srsUE.PCAPFILE)
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self.metrics_file = self.run_dir.child(srsUE.METRICSFILE)
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if not self._run_node.is_local():
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self.rem_host = remote.RemoteHost(self.run_dir, self._run_node.ssh_user(), self._run_node.ssh_addr())
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remote_prefix_dir = util.Dir(srsUE.REMOTE_DIR)
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self.remote_inst = util.Dir(remote_prefix_dir.child(os.path.basename(str(self.inst))))
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self.remote_run_dir = util.Dir(remote_prefix_dir.child(srsUE.BINFILE))
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self.remote_config_file = self.remote_run_dir.child(srsUE.CFGFILE)
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self.remote_log_file = self.remote_run_dir.child(srsUE.LOGFILE)
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self.remote_pcap_file = self.remote_run_dir.child(srsUE.PCAPFILE)
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self.remote_metrics_file = self.remote_run_dir.child(srsUE.METRICSFILE)
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values = dict(ue=config.get_defaults('srsue'))
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config.overlay(values, dict(ue=self.testenv.suite().config().get('modem', {})))
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config.overlay(values, dict(ue=self._conf))
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config.overlay(values, dict(ue=dict(num_antennas = self.enb.num_ports(),
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opc = self.opc())))
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metricsfile = self.metrics_file if self._run_node.is_local() else self.remote_metrics_file
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logfile = self.log_file if self._run_node.is_local() else self.remote_log_file
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pcapfile = self.pcap_file if self._run_node.is_local() else self.remote_pcap_file
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config.overlay(values, dict(ue=dict(metrics_filename=metricsfile,
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log_filename=logfile,
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pcap_filename=pcapfile)))
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# Convert parsed boolean string to Python boolean:
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self.enable_pcap = util.str2bool(values['ue'].get('enable_pcap', 'false'))
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config.overlay(values, dict(ue={'enable_pcap': self.enable_pcap}))
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self._additional_args = []
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for add_args in values['ue'].get('additional_args', []):
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self._additional_args += add_args.split()
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self.num_carriers = int(values['ue'].get('num_carriers', 1))
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self.num_nr_carriers = int(values['ue'].get('num_nr_carriers', 0))
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# Simply pass-through the sync options
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config.overlay(values, dict(ue={'rf_dev_sync': values['ue'].get('rf_dev_sync', None)}))
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# We need to set some specific variables programatically here to match IP addresses:
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if self._conf.get('rf_dev_type') == 'zmq':
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base_srate = num_prb2base_srate(self.enb.num_prb())
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# Define all 8 possible RF ports (2x CA with 2x2 MIMO)
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rf_dev_args = self.enb.get_zmq_rf_dev_args_for_ue(self)
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if self.num_carriers == 1:
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# Single carrier
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if self.enb.num_ports() == 1 and self.num_nr_carriers == 0:
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# SISO
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rf_dev_args += ',rx_freq0=2630e6,tx_freq0=2510e6'
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elif self.enb.num_ports() == 2:
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# MIMO
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rf_dev_args += ',rx_freq0=2630e6,rx_freq1=2630e6,tx_freq0=2510e6,tx_freq1=2510e6'
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elif self.num_carriers == 2:
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# 2x CA
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if self.enb.num_ports() == 1:
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# SISO
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rf_dev_args += ',rx_freq0=2630e6,rx_freq1=2650e6,tx_freq0=2510e6,tx_freq1=2530e6'
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elif self.enb.num_ports() == 2:
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# MIMO
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rf_dev_args += ',rx_freq0=2630e6,rx_freq1=2630e6,rx_freq2=2650e6,rx_freq3=2650e6,tx_freq0=2510e6,tx_freq1=2510e6,tx_freq2=2530e6,tx_freq3=2530e6'
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elif self.num_carriers == 4:
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# 4x CA
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if self.enb.num_ports() == 1:
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# SISO
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rf_dev_args += ',rx_freq0=2630e6,rx_freq1=2650e6,rx_freq2=2670e6,rx_freq3=2680e6,tx_freq0=2510e6,tx_freq1=2530e6,tx_freq2=2550e6,tx_freq3=2560e6'
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elif self.enb.num_ports() == 2:
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# MIMO
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raise log.Error("4 carriers with MIMO isn't supported")
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else:
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# flag
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raise log.Error('No rx/tx frequencies given for {} carriers' % self.num_carriers)
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rf_dev_args += ',id=ue,base_srate='+ str(base_srate)
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config.overlay(values, dict(ue=dict(rf_dev_args=rf_dev_args)))
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# Set UHD frame size as a function of the cell bandwidth on B2XX
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if self._conf.get('rf_dev_type') == 'uhd' and values['ue'].get('rf_dev_args', None) is not None:
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if 'b200' in values['ue'].get('rf_dev_args'):
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rf_dev_args = values['ue'].get('rf_dev_args', '')
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rf_dev_args += ',' if rf_dev_args != '' and not rf_dev_args.endswith(',') else ''
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if self.enb.num_prb() == 75:
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rf_dev_args += 'master_clock_rate=15.36e6,'
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if self.enb.num_ports() == 1:
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# SISO config
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if self.enb.num_prb() < 25:
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rf_dev_args += 'send_frame_size=512,recv_frame_size=512'
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elif self.enb.num_prb() == 25:
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rf_dev_args += 'send_frame_size=1024,recv_frame_size=1024'
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else:
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rf_dev_args += ''
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else:
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# MIMO config
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rf_dev_args += 'num_recv_frames=64,num_send_frames=64'
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# For the UE the otw12 format doesn't seem to work very well
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config.overlay(values, dict(ue=dict(rf_dev_args=rf_dev_args)))
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self.dbg('SRSUE CONFIG:\n' + pprint.pformat(values))
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with open(self.config_file, 'w') as f:
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r = template.render(srsUE.CFGFILE, values)
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self.dbg(r)
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f.write(r)
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if not self._run_node.is_local():
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self.rem_host.recreate_remote_dir(self.remote_inst)
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self.rem_host.scp('scp-inst-to-remote', str(self.inst), remote_prefix_dir)
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self.rem_host.recreate_remote_dir(self.remote_run_dir)
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self.rem_host.scp('scp-cfg-to-remote', self.config_file, self.remote_config_file)
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def is_rrc_connected(self):
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''' Check whether UE is RRC connected using console message '''
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pos_connected = (self.process.get_stdout() or '').rfind('RRC Connected')
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pos_released = (self.process.get_stdout() or '').rfind('RRC IDLE')
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return pos_connected > pos_released
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def is_registered(self, mcc_mnc=None):
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''' Checks if UE is EMM registered '''
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return 'Network attach successful.' in (self.process.get_stdout() or '')
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def get_assigned_addr(self, ipv6=False):
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if ipv6:
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raise log.Error('IPv6 not implemented!')
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else:
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stdout_lines = (self.process.get_stdout() or '').splitlines()
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for line in reversed(stdout_lines):
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if line.find('Network attach successful. IP: ') != -1:
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ipv4_addr = re.findall( r'[0-9]+(?:\.[0-9]+){3}', line)
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return ipv4_addr[0]
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return None
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def running(self):
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return not self.process.terminated()
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def addr(self):
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return self._run_node.run_addr()
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def run_node(self):
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return self._run_node
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def run_netns_wait(self, name, popen_args):
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if self._run_node.is_local():
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proc = process.NetNSProcess(name, self.run_dir.new_dir(name), self.netns(), popen_args, env={})
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else:
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proc = self.rem_host.RemoteNetNSProcess(name, self.netns(), popen_args, env={})
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proc.launch_sync()
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return proc
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def get_counter(self, counter_name):
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if counter_name == 'handover_success':
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return self.process.get_counter_stdout('HO successful')
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if counter_name == 'prach_sent':
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return self.process.get_counter_stdout('Random Access Transmission: seq=')
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if counter_name == 'prach_sent_nr':
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return self.process.get_counter_stdout('Random Access Transmission: prach_occasion=')
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if counter_name == 'paging_received':
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return self.process.get_counter_stdout('S-TMSI match in paging message')
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if counter_name == 'reestablishment_attempts':
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return self.process.get_counter_stdout('RRC Connection Reestablishment')
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if counter_name == 'reestablishment_ok':
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return self.process.get_counter_stdout('Reestablishment OK')
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if counter_name == 'rrc_connected_transitions':
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return self.process.get_counter_stdout('RRC Connected')
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if counter_name == 'rrc_idle_transitions':
|
|
return self.process.get_counter_stdout('RRC IDLE')
|
|
raise log.Error('counter %s not implemented!' % counter_name)
|
|
|
|
def verify_metric(self, value, operation='avg', metric='dl_brate', criterion='gt', window=1):
|
|
# copy back metrics if we have not already done so
|
|
self.scp_back_metrics(self)
|
|
metrics = srsUEMetrics(self.metrics_file)
|
|
return metrics.verify(value, operation, metric, criterion, window)
|
|
|
|
numpy = None
|
|
|
|
class srsUEMetrics(log.Origin):
|
|
|
|
VALID_OPERATIONS = ['avg', 'sum', 'max_rolling_avg', 'min_rolling_avg']
|
|
VALID_CRITERION = ['eq','gt','lt']
|
|
CRITERION_TO_SYM = { 'eq' : '==', 'gt' : '>', 'lt' : '<' }
|
|
CRYTERION_TO_SYM_OPPOSITE = { 'eq' : '!=', 'gt' : '<=', 'lt' : '>=' }
|
|
|
|
|
|
def __init__(self, metrics_file):
|
|
super().__init__(log.C_RUN, 'srsue_metrics')
|
|
self.raw_data = None
|
|
self.metrics_file = metrics_file
|
|
global numpy
|
|
if numpy is None:
|
|
import numpy as numpy_module
|
|
numpy = numpy_module
|
|
# read CSV, guessing data type with first row being the legend
|
|
try:
|
|
self.raw_data = numpy.genfromtxt(self.metrics_file, names=True, delimiter=';', dtype=None)
|
|
except (ValueError, IndexError, IOError) as error:
|
|
self.err("Error parsing metrics CSV file %s" % self.metrics_file)
|
|
raise error
|
|
|
|
def verify(self, value, operation='avg', metric_str='dl_brate', criterion='gt', window=1):
|
|
if operation not in self.VALID_OPERATIONS:
|
|
raise log.Error('Unknown operation %s not in %r' % (operation, self.VALID_OPERATIONS))
|
|
if criterion not in self.VALID_CRITERION:
|
|
raise log.Error('Unknown operation %s not in %r' % (operation, self.VALID_CRITERION))
|
|
# check if given metric exists in data
|
|
sel_data = numpy.array([])
|
|
metrics_list = metric_str.split('+') # allow addition operator for columns
|
|
for metric in metrics_list:
|
|
try:
|
|
vec = numpy.array(self.raw_data[metric])
|
|
except ValueError as err:
|
|
print('metric %s not available' % metric)
|
|
raise err
|
|
if sel_data.size == 0:
|
|
# Initialize with dimension of first metric vector
|
|
sel_data = vec
|
|
else:
|
|
# Sum them up assuming same array dimension
|
|
sel_data += vec
|
|
|
|
# Sum up all component carriers for rate metrics
|
|
if metric_str.find('brate'):
|
|
# Determine number of component carriers
|
|
num_cc = numpy.amax(numpy.array(self.raw_data['cc'])) + 1 # account for zero index
|
|
tmp_values = sel_data
|
|
sel_data = numpy.array(tmp_values[::num_cc]) # first carrier, every num_cc'th item in list
|
|
for cc in range(1, num_cc):
|
|
sel_data += numpy.array(tmp_values[cc::num_cc]) # all other carriers, start at cc index
|
|
|
|
if operation == 'avg':
|
|
result = numpy.average(sel_data)
|
|
elif operation == 'sum':
|
|
result = numpy.sum(sel_data)
|
|
elif operation == 'max_rolling_avg':
|
|
# calculate rolling average over window and take maximum value
|
|
result = numpy.amax(numpy.convolve(sel_data, numpy.ones((window,))/window, mode='valid'))
|
|
elif operation == 'min_rolling_avg':
|
|
# trim leading zeros to avoid false negative when UE attach takes longer
|
|
sel_data = numpy.trim_zeros(sel_data, 'f')
|
|
# calculate rolling average over window and take minimum value
|
|
result = numpy.amin(numpy.convolve(sel_data, numpy.ones((window,))/window, mode='valid'))
|
|
|
|
self.dbg(result=result, value=value)
|
|
|
|
success = False
|
|
if criterion == 'eq' and result == value or \
|
|
criterion == 'gt' and result > value or \
|
|
criterion == 'lt' and result < value:
|
|
success = True
|
|
|
|
# Convert bitrate in Mbit/s:
|
|
if metric_str.find('brate') > 0:
|
|
result /= 1e6
|
|
value /= 1e6
|
|
mbit_str = ' Mbit/s'
|
|
else:
|
|
mbit_str = ''
|
|
|
|
if not success:
|
|
result_msg = "{:.2f}{} {} {:.2f}{}".format(result, mbit_str, self.CRYTERION_TO_SYM_OPPOSITE[criterion], value, mbit_str)
|
|
raise log.Error(result_msg)
|
|
result_msg = "{:.2f}{} {} {:.2f}{}".format(result, mbit_str, self.CRITERION_TO_SYM[criterion], value, mbit_str)
|
|
# TODO: overwrite test system-out with this text.
|
|
return result_msg
|
|
|
|
# vim: expandtab tabstop=4 shiftwidth=4
|