def vpp_startup_conf_remove_nat(params):
filename = params['vpp_config_filename']
config = fwtool_vpp_startupconf_dict.load(filename)
if config.get('nat'):
del config['nat']
fwtool_vpp_startupconf_dict.dump(config, filename)
return (True, None) # 'True' stands for success, 'None' - for the returned object or error string.
def __exit__(self, exc_type, exc_value, traceback):
# The three arguments to `__exit__` describe the exception
# caused the `with` statement execution to fail. If the `with`
# statement finishes without an exception being raised, these
# arguments will be `None`.
if self.vpp_config_modified:
fwtool_vpp_startupconf_dict.dump(self.vpp_configuration,
self.CFG_VPP_CONF_FILE,
debug=self.debug)
def vpp_startup_conf_add_nat(params):
filename = params['vpp_config_filename']
config = fwtool_vpp_startupconf_dict.load(filename)
config['nat'] = []
config['nat'].append('endpoint-dependent')
config['nat'].append('translation hash buckets 1048576')
config['nat'].append('translation hash memory 268435456')
config['nat'].append('user hash buckets 1024')
config['nat'].append('max translations per user 10000')
fwtool_vpp_startupconf_dict.dump(config, filename)
return (True, None) # 'True' stands for success, 'None' - for the returned object or error string.
def vpp_startup_conf_add_devices(params):
filename = params['vpp_config_filename']
config = fwtool_vpp_startupconf_dict.load(filename)
if not config.get('dpdk'):
config['dpdk'] = []
for dev in params['devices']:
config_param = 'dev %s' % dev
if not config_param in config['dpdk']:
config['dpdk'].append(config_param)
fwtool_vpp_startupconf_dict.dump(config, filename)
return (True, None) # 'True' stands for success, 'None' - for the returned object or error string.
def vpp_startup_conf_remove_devices(params):
filename = params['vpp_config_filename']
config = fwtool_vpp_startupconf_dict.load(filename)
if not config.get('dpdk'):
return
for dev in params['devices']:
config_param = 'dev %s' % dev
if config_param in config['dpdk']:
config['dpdk'].remove(config_param)
if len(config['dpdk']) == 0:
config['dpdk'].append('ELEMENT_TO_BE_REMOVED') # Need this to avoid empty list section before dump(), as yaml goes crazy with empty list sections
fwtool_vpp_startupconf_dict.dump(config, filename)
return (True, None) # 'True' stands for success, 'None' - for the returned object or error string.
def vpp_startup_conf_update(filename, path, param, val, add, filename_backup=None):
"""Updates the /etc/vpp/startup.conf
:param filename: /etc/vpp/startup.conf
:param path: path to parameter in the startup.conf, e.g. 'dpdk/dev 0000:02:00.1'
:param param: name of the parameter, e.g. 'name'
:param val: value of the paremeter, e.g. 'eth0'
:param add: if True the parameter will be added or modified,
if False the parameter will be commented out
:returns: None.
"""
# Load file into dictionary
conf = fwtool_vpp_startupconf_dict.load(filename)
# Goto the leaf sub-section according the path.
# If some of sections don't exist, create them.
# Section is a list that might contains parameters (list) or sub-sections (dictionaries),
# so steps in path stands for dictionaries, when the last step is list.
section = conf
steps = path.split('/')
prev_section = section
prev_step = steps[0]
for (idx, step) in enumerate(steps):
if step not in section:
if idx < len(steps)-1:
section[step] = {}
else:
section[step] = [] # Last step which is list
prev_section = section
prev_step = step
section = section[step]
# If leaf section is empty (it is possible if path exists, but section is empty)
# initialize it with empty list of parameters.
if section is None:
prev_section[prev_step] = []
section = prev_section[prev_step]
# Update parameter.
# Firstly find it in section list of parameter
found_elements = [ el for el in section if param in el ]
if add:
# If element was found, update it. Otherwise - add new parameter
if len(found_elements) > 0:
if not val is None: # If there is a value to update ...
found_elements[0][param] = val
else:
if val is None:
section.append(param)
else:
section.append({param: val})
else:
if len(found_elements) > 0:
section.remove(found_elements[0])
section.append('ELEMENT_TO_BE_REMOVED')
if len(section) == 0:
prev_section[prev_step] = None
# Dump dictionary back into file
fwtool_vpp_startupconf_dict.dump(conf, filename)