def stop_client_connection(self, identifier):
"""Cleanup Openl2tp state."""
ppp_profile_name = 'ppp-prof-%s' % identifier
tunnel_profile_name = 'tunnel-prof-%s' % identifier
session_profile_name = 'session-prof-%s' % identifier
peer_profile_name = 'peer-prof-%s' % identifier
tunnel_name = 'tunnel-%s' % identifier
session_name = 'session-%s' % identifier
# delete existing profiles just to be sure
lock = helpers.acquire_openl2tpconfig_lock()
if lock is None:
raise Exception('failed to acquire openl2tp config lock')
try:
for i in [ 'session delete tunnel_name=%s session_name=%s' % (tunnel_name, session_name),
'tunnel delete tunnel_name=%s' % tunnel_name,
'ppp profile delete profile_name=%s' % ppp_profile_name,
'tunnel profile delete profile_name=%s' % tunnel_profile_name,
'session profile delete profile_name=%s' % session_profile_name,
'peer profile delete profile_name=%s' % peer_profile_name ]:
cmd = '%s\nquit\n' % i
[rv, out, err] = run_command([constants.CMD_OPENL2TPCONFIG], stdin=str(cmd)) # ignore errors
if rv != 0:
self._log.debug('client connection cleanup command failed:\n command: %s, rv: %s, out: %s, err: %s' % (cmd, rv, out, err))
else:
self._log.debug('client connection cleanup command succeeded:\n command: %s, rv: %s, out: %s, err: %s' % (cmd, rv, out, err))
finally:
helpers.release_openl2tpconfig_lock(lock)
def determine_tunnel_remote_address_and_port(self, tunnelid):
"""Determine remote IPv4 address and port of a specific tunnel."""
config = textwrap.dedent("""\
tunnel show tunnel_id=%s
quit
""") % tunnelid
lock = helpers.acquire_openl2tpconfig_lock()
if lock is None:
raise Exception('failed to acquire openl2tp config lock')
try:
[rv, stdout, stderr] = run_command([constants.CMD_OPENL2TPCONFIG], stdin=str(config), retval=runcommand.FAIL)
finally:
helpers.release_openl2tpconfig_lock(lock)
got_tunnelid, srcaddr, srcport, dstaddr, dstport = None, None, None, None, None
for l in stdout.split('\n'):
m = _re_openl2tp_tunnel_details_header.match(l)
if m is not None:
got_tunnelid, srcaddr, dstaddr = m.group(1), m.group(2), m.group(3)
continue
m = _re_openl2tp_tunnel_details_udpports.match(l)
if m is not None:
srcport, dstport = m.group(1), m.group(2)
if dstaddr is None or dstport is None:
raise Exception('cannot determine endpoint for tunnelid %s' % tunnelid)
return dstaddr, int(dstport)
def post_start(self):
# XXX: need to sleep before configure?
# XXX: retval is zero when f.ex. config file is missing!
# check srderr for error messages?
lock = helpers.acquire_openl2tpconfig_lock()
if lock is None:
raise Exception('failed to acquire openl2tp config lock')
try:
run_command([constants.CMD_OPENL2TPCONFIG, 'config', 'restore', 'file=' + constants.OPENL2TP_CONF], retval=runcommand.FAIL)
finally:
helpers.release_openl2tpconfig_lock(lock)
def _run_config(config, failmsg, successmsg):
rv, out, err = 1, '', ''
lock = helpers.acquire_openl2tpconfig_lock()
if lock is None:
raise Exception('failed to acquire openl2tp config lock')
try:
[rv, out, err] = run_command([constants.CMD_OPENL2TPCONFIG], stdin=str(config))
except:
pass
helpers.release_openl2tpconfig_lock(lock)
if rv != 0:
self._log.error('%s: %s, %s, %s' % (str(failmsg), str(rv), str(out), str(err)))
raise Exception(str(failmsg))
else:
self._log.debug('%s: %s, %s, %s' % (str(successmsg), str(rv), str(out), str(err)))
return rv, out, err
