def flush_ip_addresses(ip_version, device, namespace):
family = _IP_VERSION_FAMILY_MAP[ip_version]
try:
with get_iproute(namespace) as ip:
idx = get_link_id(device, namespace)
ip.flush_addr(index=idx, family=family)
except OSError as e:
if e.errno == errno.ENOENT:
raise exception.NetworkNamespaceNotFound(netns_name=namespace)
raise
def _run_iproute_link(command, device, namespace=None, **kwargs):
try:
with get_iproute(namespace) as ip:
idx = get_link_id(device, namespace)
return ip.link(command, index=idx, **kwargs)
except NetlinkError as e:
_translate_ip_device_exception(e, device, namespace)
raise
except OSError as e:
if e.errno == errno.ENOENT:
raise exception.NetworkNamespaceNotFound(netns_name=namespace)
raise
def list_ip_routes(namespace, ip_version, device=None, table=None, **kwargs):
"""List IP routes"""
kwargs.update(
_make_pyroute2_route_args(namespace, ip_version, None, device, None,
table, None, None, None))
try:
with get_iproute(namespace) as ip:
return make_serializable(ip.route('show', **kwargs))
except OSError as e:
if e.errno == errno.ENOENT:
raise exception.NetworkNamespaceNotFound(netns_name=namespace)
raise
def get_ip_addresses(namespace, **kwargs):
"""List of IP addresses in a namespace
:return: (tuple) IP addresses in a namespace
"""
try:
with get_iproute(namespace) as ip:
return make_serializable(ip.get_addr(**kwargs))
except OSError as e:
if e.errno == errno.ENOENT:
raise exception.NetworkNamespaceNotFound(netns_name=namespace)
raise
def get_link_devices(namespace, **kwargs):
"""List interfaces in a namespace
:return: (list) interfaces in a namespace
"""
try:
with get_iproute(namespace) as ip:
return make_serializable(ip.get_links(**kwargs))
except OSError as e:
if e.errno == errno.ENOENT:
raise exception.NetworkNamespaceNotFound(netns_name=namespace)
raise
def create_interface(ifname, namespace, kind, **kwargs):
# ifname = ifname[:constants.DEVICE_NAME_MAX_LEN]
try:
with get_iproute(namespace) as ip:
physical_interface = kwargs.pop("physical_interface", None)
if physical_interface:
link_key = "vxlan_link" if kind == "vxlan" else "link"
kwargs[link_key] = get_link_id(physical_interface, namespace)
return ip.link("add", ifname=ifname, kind=kind, **kwargs)
except NetlinkError as e:
if e.code == errno.EEXIST:
logging.warning("Interface %(device)s already exists.", ifname)
else:
raise
except OSError as e:
if e.errno == errno.ENOENT:
raise exception.NetworkNamespaceNotFound(netns_name=namespace)
raise
def delete_ip_route(namespace,
cidr,
ip_version,
device=None,
via=None,
table=None,
scope=None,
**kwargs):
"""Delete an IP route"""
kwargs.update(
_make_pyroute2_route_args(namespace, ip_version, cidr, device, via,
table, None, scope, None))
try:
with get_iproute(namespace) as ip:
ip.route('del', **kwargs)
except OSError as e:
if e.errno == errno.ENOENT:
raise exception.NetworkNamespaceNotFound(netns_name=namespace)
raise
def add_ip_route(namespace,
cidr,
ip_version,
device=None,
via=None,
table=None,
metric=None,
scope=None,
**kwargs):
"""Add an IP route"""
kwargs.update(
_make_pyroute2_route_args(namespace, ip_version, cidr, device, via,
table, metric, scope, 'static'))
try:
with get_iproute(namespace) as ip:
ip.route('replace', **kwargs)
except OSError as e:
if e.errno == errno.ENOENT:
raise exception.NetworkNamespaceNotFound(netns_name=namespace)
raise
