96 lines
3.6 KiB
Python
96 lines
3.6 KiB
Python
# osmo_gsm_tester: specifics for running an openggsn
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#
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# Copyright (C) 2016-2017 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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from ..core import log, util, config, template, process
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from . import pcap_recorder
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class OsmoGgsn(log.Origin):
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def __init__(self, testenv, ip_address):
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super().__init__(log.C_RUN, 'osmo-ggsn_%s' % ip_address.get('addr'))
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self.run_dir = None
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self.config_file = None
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self.process = None
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self.testenv = testenv
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self.ip_address = ip_address
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def start(self):
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self.log('Starting osmo-ggsn')
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self.run_dir = util.Dir(self.testenv.suite().get_run_dir().new_dir(self.name()))
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self.configure()
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inst = util.Dir(os.path.abspath(self.testenv.suite().trial().get_inst('osmo-ggsn')))
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binary = inst.child('bin', 'osmo-ggsn')
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if not os.path.isfile(binary):
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raise log.Error('Binary missing:', binary)
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lib = inst.child('lib')
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if not os.path.isdir(lib):
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raise log.Error('No lib/ in', inst)
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pcap_recorder.PcapRecorder(self.testenv, self.run_dir.new_dir('pcap'), None,
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'host %s' % self.addr())
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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 osmo-ggsn')
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util.change_elf_rpath(binary, util.prepend_library_path(lib), self.run_dir.new_dir('patchelf'))
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# osmo-ggsn requires CAP_NET_ADMIN to create tunnel devices: ioctl(TUNSETIFF):
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self.log('Applying CAP_NET_ADMIN capability to osmo-ggsn')
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util.setcap_net_admin(binary, self.run_dir.new_dir('setcap_net_admin'))
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self.dbg(run_dir=self.run_dir, binary=binary, env=env)
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self.process = process.Process(self.name(), self.run_dir,
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(binary,
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'-c', os.path.abspath(self.config_file)),
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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.config_file = self.run_dir.new_file('osmo-ggsn.cfg')
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self.dbg(config_file=self.config_file)
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values = dict(ggsn=config.get_defaults('ggsn'))
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config.overlay(values, self.testenv.suite().config())
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config.overlay(values, dict(ggsn=dict(ip_address=self.ip_address)))
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config.overlay(values, dict(ggsn=dict(statedir=self.run_dir.new_dir('statedir'))))
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self.dbg('GGSN CONFIG:\n' + pprint.pformat(values))
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with open(self.config_file, 'w') as f:
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r = template.render('osmo-ggsn.cfg', values)
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self.dbg(r)
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f.write(r)
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def conf_for_client(self):
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return dict(ggsn=dict(ip_address=self.ip_address))
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def addr(self):
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return self.ip_address.get('addr')
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def running(self):
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return not self.process.terminated()
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# vim: expandtab tabstop=4 shiftwidth=4
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