def discovery(self, proto):
'''
Resolve generic netlink protocol -- takes a string
as the only parameter, return protocol description
'''
msg = ctrlmsg()
msg['cmd'] = CTRL_CMD_GETFAMILY
msg['version'] = 1
msg['attrs'].append(['CTRL_ATTR_FAMILY_NAME', proto])
msg['header']['type'] = GENL_ID_CTRL
msg['header']['flags'] = NLM_F_REQUEST
msg['header']['pid'] = self.pid
msg.encode()
self.sendto(msg.data, (0, 0))
msg = self.get()[0]
err = msg['header'].get('error', None)
if err is not None:
if hasattr(err, 'code') and err.code == errno.ENOENT:
err.extra_code = errno.ENOTSUP
logger = getattr(logging, self.module_err_level)
logger('Generic netlink protocol %s not found' % proto)
logger('Please check if the protocol module is loaded')
if self.module_err_message is not None:
logger(self.module_err_message)
raise err
return msg
def discovery(self, proto):
'''
Resolve generic netlink protocol -- takes a string
as the only parameter, return protocol description
'''
msg = ctrlmsg()
msg['cmd'] = CTRL_CMD_GETFAMILY
msg['version'] = 1
msg['attrs'].append(['CTRL_ATTR_FAMILY_NAME', proto])
msg['header']['type'] = GENL_ID_CTRL
msg['header']['flags'] = NLM_F_REQUEST
msg['header']['pid'] = self.pid
msg.encode()
self.sendto(msg.data, (0, 0))
msg = self.get()[0]
err = msg['header'].get('error', None)
if err is not None:
raise err
return msg
def get_protocol_id(self, proto):
'''
Resolve generic netlink protocol -- takes a string
as the only parameter, return integer proto ID
'''
msg = ctrlmsg()
msg['cmd'] = CTRL_CMD_GETFAMILY
msg['version'] = 1
msg['attrs'].append(['CTRL_ATTR_FAMILY_NAME', proto])
msg['header']['type'] = GENL_ID_CTRL
msg['header']['flags'] = NLM_F_REQUEST
msg['header']['pid'] = self.pid
msg.encode()
self.sendto(msg.buf.getvalue(), (0, 0))
msg = self.get()[0]
err = msg['header'].get('error', None)
if err is not None:
raise err
return msg.get_attr('CTRL_ATTR_FAMILY_ID')
def discovery(self, proto):
'''
Resolve generic netlink protocol -- takes a string
as the only parameter, return protocol description
'''
msg = ctrlmsg()
msg['cmd'] = CTRL_CMD_GETFAMILY
msg['version'] = 1
msg['attrs'].append(['CTRL_ATTR_FAMILY_NAME', proto])
msg['header']['type'] = GENL_ID_CTRL
msg['header']['flags'] = NLM_F_REQUEST
msg['header']['pid'] = self.pid
msg.encode()
self.sendto(msg.data, (0, 0))
msg = self.get()[0]
err = msg['header'].get('error', None)
if err is not None:
if hasattr(err, 'code') and err.code == errno.ENOENT:
logging.error('Generic netlink protocol %s not found' % proto)
logging.error('Please check if the protocol module is loaded')
raise err
return msg
def discovery(self):
'''
Resolve gtp netlink protocol
'''
msg = ctrlmsg()
msg['cmd'] = CTRL_CMD_GETFAMILY
msg['version'] = 1
# msg['attrs'].append(['CTRL_ATTR_FAMILY_ID', GENL_ID_CTRL])
msg['attrs'].append(['CTRL_ATTR_FAMILY_NAME', "gtp"])
msg['header']['type'] = GENL_ID_CTRL
msg['header']['flags'] = NLM_F_REQUEST
msg['header']['pid'] = self.pid
msg.encode()
self.sendto(msg.data, (0, 0))
msg = self.get()[0]
err = msg['header'].get('error', None)
if err is not None:
if hasattr(err, 'code') and err.code == ENOENT:
logger.error('gtp netlink protocol not found')
logger.error(
'maybe the protocol module is loaded, (modprobe gtp)')
exit(1)
return msg