1 # Copyright (c) 2016 Cisco and/or its affiliates.
2 # Licensed under the Apache License, Version 2.0 (the "License");
3 # you may not use this file except in compliance with the License.
4 # You may obtain a copy of the License at:
6 # http://www.apache.org/licenses/LICENSE-2.0
8 # Unless required by applicable law or agreed to in writing, software
9 # distributed under the License is distributed on an "AS IS" BASIS,
10 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
11 # See the License for the specific language governing permissions and
12 # limitations under the License.
14 """SPAN setup library"""
16 from resources.libraries.python.topology import Topology
17 from resources.libraries.python.VatExecutor import VatTerminal
20 # pylint: disable=too-few-public-methods
22 """Class contains methods for setting up SPAN mirroring on DUTs."""
29 def set_span_mirroring(node, src_if, dst_if):
30 """Set Span mirroring on the specified node.
32 :param node: DUT node.
33 :param src_if: Interface to mirror traffic from.
34 :param dst_if: Interface to mirror traffic to.
40 src_if = Topology.get_interface_sw_index(node, src_if)
41 dst_if = Topology.get_interface_sw_index(node, dst_if)
43 with VatTerminal(node, json_param=False) as vat:
44 vat.vat_terminal_exec_cmd_from_template('span_create.vat',
45 src_sw_if_index=src_if,
46 dst_sw_if_index=dst_if,
50 def vpp_get_span_configuration(node):
51 """Get full SPAN configuration from VPP node.
53 :param node: DUT node.
55 :returns: Full SPAN configuration as list. One list entry for every
56 source/destination interface pair.
60 with VatTerminal(node, json_param=True) as vat:
61 data = vat.vat_terminal_exec_cmd_from_template('span_dump.vat')
65 def vpp_get_span_configuration_by_interface(node, dst_interface,
66 ret_format="sw_if_index"):
67 """Get a list of all interfaces currently being mirrored
68 to the specified interface.
70 :param node: DUT node.
71 :param dst_interface: Name, sw_if_index or key of interface.
72 :param ret_format: Optional. Desired format of returned interfaces.
74 :type dst_interface: str or int
75 :type ret_format: string
76 :returns: List of SPAN source interfaces for the provided destination
81 data = SPAN.vpp_get_span_configuration(node)
83 dst_interface = Topology.convert_interface_reference(
84 node, dst_interface, "sw_if_index")
87 if item["dst-if-index"] == dst_interface:
88 src_interfaces.append(item["src-if-index"])
90 if ret_format != "sw_if_index":
92 Topology.convert_interface_reference(
93 node, interface, ret_format
94 ) for interface in src_interfaces]