summaryrefslogtreecommitdiffstats
path: root/src/osmo_gsm_tester/bts_osmotrx.py
blob: 39bfcae9c86b606f6c1d580f8176acd98ebd1448 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
# 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 supported_bands(self):
        return self.conf.get('bands', [])

    def set_arfcn_resource(self, band_arfcn):
        self.band_arfcn = band_arfcn

    def band(self):
        return self.band_arfcn.get('band')

    def arfcn(self):
        return int(self.band_arfcn.get('arfcn'))

    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(),
                            'band': self.band(),
                        }
        })
        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)
        config.overlay(values, {
                    'band': self.band(),
                    'trx_list': [ { 'arfcn': self.arfcn() } ]
                    })
        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