-# Copyright (c) 2016 Cisco and/or its affiliates.
+# Copyright (c) 2018 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:
"""Routing utilities library."""
-from VatExecutor import VatTerminal
-from topology import Topology
+from resources.libraries.python.VatExecutor import VatTerminal
+from resources.libraries.python.topology import Topology
+from resources.libraries.python.ssh import exec_cmd_no_error
class Routing(object):
"""Routing utilities."""
@staticmethod
- def vpp_route_add(node, network, prefix_len, gateway, interface):
+ def vpp_route_add(node, network, prefix_len, **kwargs):
"""Add route to the VPP node.
:param node: Node to add route on.
:param network: Route destination network address.
:param prefix_len: Route destination network prefix length.
- :param gateway: Route gateway address.
- :param interface: Route interface.
- :type node: str
+ :param kwargs: Optional key-value arguments:
+
+ gateway: Route gateway address. (str)
+ interface: Route interface. (str)
+ vrf: VRF table ID. (int)
+ use_sw_index: Use sw_if_index in VAT command. (bool)
+ resolve_attempts: Resolve attempts IP route add parameter. (int)
+ count: number of IP addresses to add starting from network IP (int)
+ local: The route is local with same prefix (increment is 1).
+ If None, then is not used. (bool)
+ lookup_vrf: VRF table ID for lookup. (int)
+ multipath: Enable multipath routing. (bool)
+ weight: Weight value for unequal cost multipath routing. (int)
+
+ :type node: dict
:type network: str
:type prefix_len: int
+ :type kwargs: dict
+ """
+
+ gateway = kwargs.get("gateway", '')
+ intf = kwargs.get("interface", '')
+ use_sw_index = kwargs.get("use_sw_index", True)
+ resolve_attempts = kwargs.get("resolve_attempts", 10)
+ count = kwargs.get("count", 1)
+ vrf = kwargs.get("vrf", None)
+ l_vrf = kwargs.get("lookup_vrf", None)
+ multipath = kwargs.get("multipath", False)
+ weight = kwargs.get("weight", None)
+ local = kwargs.get("local", False)
+
+ if intf:
+ if use_sw_index:
+ int_cmd = ('sw_if_index {}'.
+ format(Topology.get_interface_sw_index(node, intf)))
+ else:
+ int_cmd = intf
+ else:
+ int_cmd = ''
+
+ with VatTerminal(node, json_param=False) as vat:
+ vat.vat_terminal_exec_cmd_from_template(
+ 'add_route.vat',
+ network=network,
+ prefix_length=prefix_len,
+ via='via {}'.format(gateway) if gateway else '',
+ vrf='vrf {}'.format(vrf) if vrf else '',
+ interface=int_cmd,
+ resolve_attempts='resolve-attempts {}'.
+ format(resolve_attempts) if resolve_attempts else '',
+ count='count {}'.format(count) if count else '',
+ lookup_vrf='lookup-in-vrf {}'.format(l_vrf) if l_vrf else '',
+ multipath='multipath' if multipath else '',
+ weight='weight {}'.format(weight) if weight else '',
+ local='local' if local else '')
+
+ @staticmethod
+ def add_fib_table(node, table_id, ipv6=False):
+ """Create new FIB table according to ID.
+
+ :param node: Node to add FIB on.
+ :param table_id: FIB table ID.
+ :param ipv6: Is this an IPv6 table
+ :type node: dict
+ :type table_id: int
+ :type ipv6: bool
+ """
+ with VatTerminal(node) as vat:
+ vat.vat_terminal_exec_cmd_from_template('add_fib_table.vat',
+ table_id=table_id,
+ ipv6="ipv6" if ipv6 else "")
+
+ @staticmethod
+ def add_route(node, ip_addr, prefix, gateway, namespace=None):
+ """Add route in namespace.
+
+ :param node: Node where to execute command.
+ :param ip_addr: Route destination IP address.
+ :param prefix: IP prefix.
+ :param namespace: Execute command in namespace. Optional.
+ :param gateway: Gateway address.
+ :type node: dict
+ :type ip_addr: str
+ :type prefix: int
:type gateway: str
- :type interface: str
+ :type namespace: str
"""
- sw_if_index = Topology.get_interface_sw_index(node, interface)
- vat = VatTerminal(node)
- vat.vat_terminal_exec_cmd_from_template('add_route.vat',
- network=network,
- prefix_length=prefix_len,
- gateway=gateway,
- sw_if_index=sw_if_index)
- vat.vat_terminal_close()
+ if namespace is not None:
+ cmd = 'ip netns exec {} ip route add {}/{} via {}'.format(
+ namespace, ip_addr, prefix, gateway)
+ else:
+ cmd = 'ip route add {}/{} via {}'.format(ip_addr, prefix, gateway)
+ exec_cmd_no_error(node, cmd, sudo=True)