-# Copyright (c) 2019 Cisco and/or its affiliates.
+# Copyright (c) 2020 Cisco and/or its affiliates.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at:
# limitations under the License.
"""Common IP utilities library."""
-
import re
from enum import IntEnum
from resources.libraries.python.ssh import exec_cmd_no_error, exec_cmd
from resources.libraries.python.topology import Topology
from resources.libraries.python.VatExecutor import VatTerminal
+from resources.libraries.python.Namespaces import Namespaces
# from vpp/src/vnet/vnet/mpls/mpls_types.h
raise AssertionError(f"IP addresses are not equal: {ip1} != {ip2}")
@staticmethod
- def setup_network_namespace(
- node, namespace_name, interface_name, ip_addr, prefix):
+ def setup_network_namespace(node, namespace_name, interface_name,
+ ip_addr_list, prefix_length):
"""Setup namespace on given node and attach interface and IP to
this namespace. Applicable also on TG node.
:param node: VPP node.
:param namespace_name: Namespace name.
:param interface_name: Interface name.
- :param ip_addr: IP address of namespace's interface.
- :param prefix: IP address prefix length.
+ :param ip_addr_list: List of IP addresses of namespace's interface.
+ :param prefix_length: IP address prefix length.
:type node: dict
:type namespace_name: str
:type interface_name: str
- :type ip_addr: str
- :type prefix: int
+ :type ip_addr_list: list
+ :type prefix_length: int
"""
- cmd = f"ip netns add {namespace_name}"
- exec_cmd_no_error(node, cmd, sudo=True)
+ Namespaces.create_namespace(node, namespace_name)
- cmd = f"ip link set dev {interface_name} up netns {namespace_name}"
+ cmd = f"ip netns exec {namespace_name} ip link set {interface_name} up"
exec_cmd_no_error(node, cmd, sudo=True)
- cmd = f"ip netns exec {namespace_name} ip addr add {ip_addr}/{prefix}" \
- f" dev {interface_name}"
- exec_cmd_no_error(node, cmd, sudo=True)
+ for ip_addr in ip_addr_list:
+ cmd = f"ip netns exec {namespace_name} ip addr add " \
+ f"{ip_addr}/{prefix_length} dev {interface_name}"
+ exec_cmd_no_error(node, cmd, sudo=True)
@staticmethod
def linux_enable_forwarding(node, ip_ver=u"ipv4"):
exec_cmd_no_error(node, cmd, timeout=5, sudo=True)
+ @staticmethod
+ def delete_linux_interface_ip(
+ node, interface, ip_addr, prefix_length, namespace=None):
+ """Delete IP address from interface in linux.
+
+ :param node: VPP/TG node.
+ :param interface: Interface in namespace.
+ :param ip_addr: IP to be deleted from interface.
+ :param prefix_length: IP prefix length.
+ :param namespace: Execute command in namespace. Optional
+ :type node: dict
+ :type interface: str
+ :type ip_addr: str
+ :type prefix_length: int
+ :type namespace: str
+ :raises RuntimeError: IP could not be deleted.
+ """
+ # TODO: Refactor command execution in namespaces into central
+ # methods (e.g. Namespace.exec_cmd_in_namespace)
+ if namespace is not None:
+ cmd = f"ip netns exec {namespace} ip addr del " \
+ f"{ip_addr}/{prefix_length} dev {interface}"
+ else:
+ cmd = f"ip addr del {ip_addr}/{prefix_length} dev {interface}"
+
+ exec_cmd_no_error(node, cmd, timeout=5, sudo=True)
+
+ @staticmethod
+ def linux_interface_has_ip(
+ node, interface, ip_addr, prefix_length, namespace=None):
+ """Return True if interface in linux has IP address.
+
+ :param node: VPP/TG node.
+ :param interface: Interface in namespace.
+ :param ip_addr: IP to be queried on interface.
+ :param prefix_length: IP prefix length.
+ :param namespace: Execute command in namespace. Optional
+ :type node: dict
+ :type interface: str
+ :type ip_addr: str
+ :type prefix_length: int
+ :type namespace: str
+ :rtype boolean
+ :raises RuntimeError: Request fails.
+ """
+ ip_addr_with_prefix = f"{ip_addr}/{prefix_length}"
+ if namespace is not None:
+ cmd = f"ip netns exec {namespace} ip addr show dev {interface}"
+ else:
+ cmd = f"ip addr show dev {interface}"
+
+ cmd += u" | grep 'inet ' | awk -e '{print $2}'"
+ cmd += f" | grep '{ip_addr_with_prefix}'"
+ _, stdout, _ = exec_cmd(node, cmd, timeout=5, sudo=True)
+
+ has_ip = stdout.rstrip()
+ return bool(has_ip == ip_addr_with_prefix)
+
@staticmethod
def add_linux_route(node, ip_addr, prefix, gateway, namespace=None):
"""Add linux route in namespace.
with PapiSocketExecutor(node) as papi_exec:
papi_exec.add(cmd, **args).get_reply(err_msg)
+ @staticmethod
+ def vpp_interface_set_ip_addresses(node, interface, ip_addr_list,
+ prefix_length=None):
+ """Set IP addresses to VPP interface.
+
+ :param node: VPP node.
+ :param interface: Interface name.
+ :param ip_addr_list: IP addresses.
+ :param prefix_length: Prefix length.
+ :type node: dict
+ :type interface: str
+ :type ip_addr_list: list
+ :type prefix_length: int
+ """
+ for ip_addr in ip_addr_list:
+ IPUtil.vpp_interface_set_ip_address(node, interface, ip_addr,
+ prefix_length)
+
@staticmethod
def vpp_add_ip_neighbor(node, iface_key, ip_addr, mac_address):
"""Add IP neighbor on DUT node.
Code Review / csit.git / blobdiff