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 """Interface util library"""
16 from time import time, sleep
18 from robot.api import logger
20 from resources.libraries.python.ssh import SSH
21 from resources.libraries.python.IPUtil import convert_ipv4_netmask_prefix
22 from resources.libraries.python.ssh import exec_cmd_no_error
23 from resources.libraries.python.topology import NodeType, Topology
24 from resources.libraries.python.VatExecutor import VatExecutor, VatTerminal
25 from resources.libraries.python.VatJsonUtil import VatJsonUtil
26 from resources.libraries.python.parsers.JsonParser import JsonParser
29 class InterfaceUtil(object):
30 """General utilities for managing interfaces"""
32 __UDEV_IF_RULES_FILE = '/etc/udev/rules.d/10-network.rules'
35 def set_interface_state(node, interface, state, if_type="key"):
36 """Set interface state on a node.
38 Function can be used for DUTs as well as for TGs.
40 :param node: Node where the interface is.
41 :param interface: Interface key or sw_if_index or name.
42 :param state: One of 'up' or 'down'.
43 :param if_type: Interface type
45 :type interface: str or int
49 :raises ValueError: If the interface type is unknown.
50 :raises ValueError: If the state of interface is unexpected.
51 :raises ValueError: If the node has an unknown node type.
55 if isinstance(interface, basestring):
56 sw_if_index = Topology.get_interface_sw_index(node, interface)
57 iface_name = Topology.get_interface_name(node, interface)
59 sw_if_index = interface
60 elif if_type == "name":
61 iface_key = Topology.get_interface_by_name(node, interface)
62 if iface_key is not None:
63 sw_if_index = Topology.get_interface_sw_index(node, iface_key)
64 iface_name = interface
66 raise ValueError("if_type unknown: {}".format(if_type))
68 if node['type'] == NodeType.DUT:
74 raise ValueError('Unexpected interface state: {}'.format(state))
75 VatExecutor.cmd_from_template(node, 'set_if_state.vat',
76 sw_if_index=sw_if_index, state=state)
77 elif node['type'] == NodeType.TG or node['type'] == NodeType.VM:
78 cmd = 'ip link set {} {}'.format(iface_name, state)
79 exec_cmd_no_error(node, cmd, sudo=True)
81 raise ValueError('Node {} has unknown NodeType: "{}"'
82 .format(node['host'], node['type']))
85 def set_interface_ethernet_mtu(node, iface_key, mtu):
86 """Set Ethernet MTU for specified interface.
88 Function can be used only for TGs.
90 :param node: Node where the interface is.
91 :param iface_key: Interface key from topology file.
92 :param mtu: MTU to set.
97 :raises ValueError: If the node type is "DUT".
98 :raises ValueError: If the node has an unknown node type.
100 if node['type'] == NodeType.DUT:
101 raise ValueError('Node {}: Setting Ethernet MTU for interface '
102 'on DUT nodes not supported', node['host'])
103 elif node['type'] == NodeType.TG:
104 iface_name = Topology.get_interface_name(node, iface_key)
105 cmd = 'ip link set {} mtu {}'.format(iface_name, mtu)
106 exec_cmd_no_error(node, cmd, sudo=True)
108 raise ValueError('Node {} has unknown NodeType: "{}"'
109 .format(node['host'], node['type']))
112 def set_default_ethernet_mtu_on_all_interfaces_on_node(node):
113 """Set default Ethernet MTU on all interfaces on node.
115 Function can be used only for TGs.
117 :param node: Node where to set default MTU.
121 for ifc in node['interfaces']:
122 InterfaceUtil.set_interface_ethernet_mtu(node, ifc, 1500)
125 def vpp_node_interfaces_ready_wait(node, timeout=10):
126 """Wait until all interfaces with admin-up are in link-up state.
128 :param node: Node to wait on.
129 :param timeout: Waiting timeout in seconds (optional, default 10s).
133 :raises: RuntimeError if the timeout period value has elapsed.
139 out = InterfaceUtil.vpp_get_interface_data(node)
140 if time() - start > timeout:
141 for interface in out:
142 if interface.get('admin_up_down') == 1:
143 if interface.get('link_up_down') != 1:
144 logger.debug('{0} link-down'.format(
145 interface.get('interface_name')))
146 raise RuntimeError('timeout, not up {0}'.format(not_ready))
148 for interface in out:
149 if interface.get('admin_up_down') == 1:
150 if interface.get('link_up_down') != 1:
151 not_ready.append(interface.get('interface_name'))
155 logger.debug('Interfaces still in link-down state: {0}, '
156 'waiting...'.format(not_ready))
160 def vpp_nodes_interfaces_ready_wait(nodes, timeout=10):
161 """Wait until all interfaces with admin-up are in link-up state for
164 :param nodes: List of nodes to wait on.
165 :param timeout: Seconds to wait per node for all interfaces to come up.
171 InterfaceUtil.vpp_node_interfaces_ready_wait(node, timeout)
174 def all_vpp_interfaces_ready_wait(nodes, timeout=10):
175 """Wait until all interfaces with admin-up are in link-up state for all
176 nodes in the topology.
178 :param nodes: Nodes in the topology.
179 :param timeout: Seconds to wait per node for all interfaces to come up.
184 for node in nodes.values():
185 if node['type'] == NodeType.DUT:
186 InterfaceUtil.vpp_node_interfaces_ready_wait(node, timeout)
189 def vpp_get_interface_data(node, interface=None):
190 """Get all interface data from a VPP node. If a name or
191 sw_interface_index is provided, return only data for the matching
194 :param node: VPP node to get interface data from.
195 :param interface: Numeric index or name string of a specific interface.
197 :type interface: int or str
198 :returns: List of dictionaries containing data for each interface, or a
199 single dictionary for the specified interface.
201 :raises TypeError: if the data type of interface is neither basestring
204 with VatTerminal(node) as vat:
205 response = vat.vat_terminal_exec_cmd_from_template(
206 "interface_dump.vat")
210 if interface is not None:
211 if isinstance(interface, basestring):
212 param = "interface_name"
213 elif isinstance(interface, int):
214 param = "sw_if_index"
218 if data_if[param] == interface:
224 def vpp_get_interface_name(node, sw_if_index):
225 """Get interface name for the given SW interface index from actual
228 :param node: VPP node to get interface data from.
229 :param sw_if_index: SW interface index of the specific interface.
231 :type sw_if_index: int
232 :returns: Name of the given interface.
236 if_data = InterfaceUtil.vpp_get_interface_data(node, sw_if_index)
237 if if_data['sup_sw_if_index'] != if_data['sw_if_index']:
238 if_data = InterfaceUtil.vpp_get_interface_data(
239 node, if_data['sup_sw_if_index'])
241 if_name = if_data["interface_name"]
247 def vpp_get_interface_mac(node, interface=None):
248 """Get MAC address for the given interface from actual interface dump.
250 :param node: VPP node to get interface data from.
251 :param interface: Numeric index or name string of a specific interface.
253 :type interface: int or str
254 :returns: MAC address.
258 if_data = InterfaceUtil.vpp_get_interface_data(node, interface)
259 if if_data['sup_sw_if_index'] != if_data['sw_if_index']:
260 if_data = InterfaceUtil.vpp_get_interface_data(
261 node, if_data['sup_sw_if_index'])
262 mac_data = [str(hex(item))[2:] for item in if_data['l2_address'][:6]]
264 for item in mac_data:
267 mac_data_nice.append(item)
268 mac = ":".join(mac_data_nice)
272 def vpp_get_interface_ip_addresses(node, interface, ip_version):
273 """Get list of IP addresses from an interface on a VPP node.
275 :param node: VPP node to get data from.
276 :param interface: Name of an interface on the VPP node.
277 :param ip_version: IP protocol version (ipv4 or ipv6).
280 :type ip_version: str
281 :returns: List of dictionaries, each containing IP address, subnet
282 prefix length and also the subnet mask for ipv4 addresses.
283 Note: A single interface may have multiple IP addresses assigned.
288 sw_if_index = Topology.convert_interface_reference(
289 node, interface, "sw_if_index")
291 if isinstance(interface, basestring):
292 sw_if_index = InterfaceUtil.get_sw_if_index(node, interface)
296 with VatTerminal(node) as vat:
297 response = vat.vat_terminal_exec_cmd_from_template(
298 "ip_address_dump.vat", ip_version=ip_version,
299 sw_if_index=sw_if_index)
303 if ip_version == "ipv4":
305 item["netmask"] = convert_ipv4_netmask_prefix(
306 item["prefix_length"])
310 def tg_set_interface_driver(node, pci_addr, driver):
311 """Set interface driver on the TG node.
313 :param node: Node to set interface driver on (must be TG node).
314 :param pci_addr: PCI address of the interface.
315 :param driver: Driver name.
320 :raises RuntimeError: If unbinding from the current driver fails.
321 :raises RuntimeError: If binding to the new driver fails.
323 old_driver = InterfaceUtil.tg_get_interface_driver(node, pci_addr)
324 if old_driver == driver:
330 # Unbind from current driver
331 if old_driver is not None:
332 cmd = 'sh -c "echo {0} > /sys/bus/pci/drivers/{1}/unbind"'\
333 .format(pci_addr, old_driver)
334 (ret_code, _, _) = ssh.exec_command_sudo(cmd)
335 if int(ret_code) != 0:
336 raise RuntimeError("'{0}' failed on '{1}'"
337 .format(cmd, node['host']))
339 # Bind to the new driver
340 cmd = 'sh -c "echo {0} > /sys/bus/pci/drivers/{1}/bind"'\
341 .format(pci_addr, driver)
342 (ret_code, _, _) = ssh.exec_command_sudo(cmd)
343 if int(ret_code) != 0:
344 raise RuntimeError("'{0}' failed on '{1}'"
345 .format(cmd, node['host']))
348 def tg_get_interface_driver(node, pci_addr):
349 """Get interface driver from the TG node.
351 :param node: Node to get interface driver on (must be TG node).
352 :param pci_addr: PCI address of the interface.
355 :returns: Interface driver or None if not found.
357 :raises RuntimeError: If it is not possible to get the interface driver
358 information from the node.
361 # lspci -vmmks 0000:00:05.0
363 Class: Ethernet controller
365 Device: Virtio network device
366 SVendor: Red Hat, Inc
375 logger.trace('Try {}: Get interface driver'.format(i))
376 cmd = 'sh -c "echo 1 > /sys/bus/pci/rescan"'
377 (ret_code, _, _) = ssh.exec_command_sudo(cmd)
378 if int(ret_code) != 0:
379 raise RuntimeError("'{0}' failed on '{1}'"
380 .format(cmd, node['host']))
382 cmd = 'lspci -vmmks {0}'.format(pci_addr)
383 (ret_code, stdout, _) = ssh.exec_command(cmd)
384 if int(ret_code) != 0:
385 raise RuntimeError("'{0}' failed on '{1}'"
386 .format(cmd, node['host']))
388 for line in stdout.splitlines():
392 (name, value) = line.split("\t", 1)
394 if name != "Driver:":
398 if name == 'Driver:':
399 return value if value else None
401 raise RuntimeError('Get interface driver for: {0}'
405 def tg_set_interfaces_udev_rules(node):
406 """Set udev rules for interfaces.
408 Create udev rules file in /etc/udev/rules.d where are rules for each
409 interface used by TG node, based on MAC interface has specific name.
410 So after unbind and bind again to kernel driver interface has same
411 name as before. This must be called after TG has set name for each
412 port in topology dictionary.
414 SUBSYSTEM=="net", ACTION=="add", ATTR{address}=="52:54:00:e1:8a:0f",
417 :param node: Node to set udev rules on (must be TG node).
419 :raises RuntimeError: If setting of udev rules fails.
424 cmd = 'rm -f {0}'.format(InterfaceUtil.__UDEV_IF_RULES_FILE)
425 (ret_code, _, _) = ssh.exec_command_sudo(cmd)
426 if int(ret_code) != 0:
427 raise RuntimeError("'{0}' failed on '{1}'"
428 .format(cmd, node['host']))
430 for interface in node['interfaces'].values():
431 rule = 'SUBSYSTEM==\\"net\\", ACTION==\\"add\\", ATTR{address}' + \
432 '==\\"' + interface['mac_address'] + '\\", NAME=\\"' + \
433 interface['name'] + '\\"'
434 cmd = 'sh -c "echo \'{0}\' >> {1}"'.format(
435 rule, InterfaceUtil.__UDEV_IF_RULES_FILE)
436 (ret_code, _, _) = ssh.exec_command_sudo(cmd)
437 if int(ret_code) != 0:
438 raise RuntimeError("'{0}' failed on '{1}'"
439 .format(cmd, node['host']))
441 cmd = '/etc/init.d/udev restart'
442 ssh.exec_command_sudo(cmd)
445 def tg_set_interfaces_default_driver(node):
446 """Set interfaces default driver specified in topology yaml file.
448 :param node: Node to setup interfaces driver on (must be TG node).
451 for interface in node['interfaces'].values():
452 InterfaceUtil.tg_set_interface_driver(node,
453 interface['pci_address'],
457 def update_vpp_interface_data_on_node(node):
458 """Update vpp generated interface data for a given node in DICT__nodes.
460 Updates interface names, software if index numbers and any other details
461 generated specifically by vpp that are unknown before testcase run.
462 It does this by dumping interface list to JSON output from all
463 devices using vpp_api_test, and pairing known information from topology
464 (mac address/pci address of interface) to state from VPP.
466 :param node: Node selected from DICT__nodes.
469 vat_executor = VatExecutor()
470 vat_executor.execute_script_json_out("dump_interfaces.vat", node)
471 interface_dump_json = vat_executor.get_script_stdout()
472 VatJsonUtil.update_vpp_interface_data_from_json(node,
476 def update_nic_interface_names(node):
477 """Update interface names based on nic type and PCI address.
479 This method updates interface names in the same format as VPP does.
481 :param node: Node dictionary.
484 for ifc in node['interfaces'].values():
485 if_pci = ifc['pci_address'].replace('.', ':').split(':')
486 bus = '{:x}'.format(int(if_pci[1], 16))
487 dev = '{:x}'.format(int(if_pci[2], 16))
488 fun = '{:x}'.format(int(if_pci[3], 16))
489 loc = '{bus}/{dev}/{fun}'.format(bus=bus, dev=dev, fun=fun)
490 if ifc['model'] == 'Intel-XL710':
491 ifc['name'] = 'FortyGigabitEthernet{loc}'.format(loc=loc)
492 elif ifc['model'] == 'Intel-X710':
493 ifc['name'] = 'TenGigabitEthernet{loc}'.format(loc=loc)
494 elif ifc['model'] == 'Intel-X520-DA2':
495 ifc['name'] = 'TenGigabitEthernet{loc}'.format(loc=loc)
496 elif ifc['model'] == 'Cisco-VIC-1385':
497 ifc['name'] = 'FortyGigabitEthernet{loc}'.format(loc=loc)
498 elif ifc['model'] == 'Cisco-VIC-1227':
499 ifc['name'] = 'TenGigabitEthernet{loc}'.format(loc=loc)
501 ifc['name'] = 'UnknownEthernet{loc}'.format(loc=loc)
504 def update_nic_interface_names_on_all_duts(nodes):
505 """Update interface names based on nic type and PCI address on all DUTs.
507 This method updates interface names in the same format as VPP does.
509 :param nodes: Topology nodes.
512 for node in nodes.values():
513 if node['type'] == NodeType.DUT:
514 InterfaceUtil.update_nic_interface_names(node)
517 def update_tg_interface_data_on_node(node):
518 """Update interface name for TG/linux node in DICT__nodes.
520 :param node: Node selected from DICT__nodes.
522 :raises RuntimeError: If getting of interface name and MAC fails.
525 # for dev in `ls /sys/class/net/`;
526 > do echo "\"`cat /sys/class/net/$dev/address`\": \"$dev\""; done
527 "52:54:00:9f:82:63": "eth0"
528 "52:54:00:77:ae:a9": "eth1"
529 "52:54:00:e1:8a:0f": "eth2"
530 "00:00:00:00:00:00": "lo"
532 .. todo:: parse lshw -json instead
534 # First setup interface driver specified in yaml file
535 InterfaceUtil.tg_set_interfaces_default_driver(node)
537 # Get interface names
541 cmd = ('for dev in `ls /sys/class/net/`; do echo "\\"`cat '
542 '/sys/class/net/$dev/address`\\": \\"$dev\\""; done;')
544 (ret_code, stdout, _) = ssh.exec_command(cmd)
545 if int(ret_code) != 0:
546 raise RuntimeError('Get interface name and MAC failed')
547 tmp = "{" + stdout.rstrip().replace('\n', ',') + "}"
548 interfaces = JsonParser().parse_data(tmp)
549 for interface in node['interfaces'].values():
550 name = interfaces.get(interface['mac_address'])
553 interface['name'] = name
555 # Set udev rules for interfaces
556 InterfaceUtil.tg_set_interfaces_udev_rules(node)
559 def iface_update_numa_node(node):
560 """For all interfaces from topology file update numa node based on
561 information from the node.
563 :param node: Node from topology.
566 :raises ValueError: If numa node ia less than 0.
567 :raises RuntimeError: If update of numa node failes.
570 for if_key in Topology.get_node_interfaces(node):
571 if_pci = Topology.get_interface_pci_addr(node, if_key)
573 cmd = "cat /sys/bus/pci/devices/{}/numa_node".format(if_pci)
575 (ret, out, _) = ssh.exec_command(cmd)
582 logger.trace('Reading numa location failed for: {0}'\
585 Topology.set_interface_numa_node(node, if_key,
589 raise RuntimeError('Update numa node failed for: {0}'\
593 def update_all_numa_nodes(nodes, skip_tg=False):
594 """For all nodes and all their interfaces from topology file update numa
595 node information based on information from the node.
597 :param nodes: Nodes in the topology.
598 :param skip_tg: Skip TG node
603 for node in nodes.values():
604 if node['type'] == NodeType.DUT:
605 InterfaceUtil.iface_update_numa_node(node)
606 elif node['type'] == NodeType.TG and not skip_tg:
607 InterfaceUtil.iface_update_numa_node(node)
610 def update_all_interface_data_on_all_nodes(nodes, skip_tg=False,
612 """Update interface names on all nodes in DICT__nodes.
614 This method updates the topology dictionary by querying interface lists
615 of all nodes mentioned in the topology dictionary.
617 :param nodes: Nodes in the topology.
618 :param skip_tg: Skip TG node
619 :param numa_node: Retrieve numa_node location.
622 :type numa_node: bool
624 for node_data in nodes.values():
625 if node_data['type'] == NodeType.DUT:
626 InterfaceUtil.update_vpp_interface_data_on_node(node_data)
627 elif node_data['type'] == NodeType.TG and not skip_tg:
628 InterfaceUtil.update_tg_interface_data_on_node(node_data)
631 if node_data['type'] == NodeType.DUT:
632 InterfaceUtil.iface_update_numa_node(node_data)
633 elif node_data['type'] == NodeType.TG and not skip_tg:
634 InterfaceUtil.iface_update_numa_node(node_data)
637 def create_vlan_subinterface(node, interface, vlan):
638 """Create VLAN subinterface on node.
640 :param node: Node to add VLAN subinterface on.
641 :param interface: Interface name on which create VLAN subinterface.
642 :param vlan: VLAN ID of the subinterface to be created.
646 :returns: Name and index of created subinterface.
648 :raises RuntimeError: if it is unable to create VLAN subinterface on the
651 iface_key = Topology.get_interface_by_name(node, interface)
652 sw_if_index = Topology.get_interface_sw_index(node, iface_key)
654 output = VatExecutor.cmd_from_template(node, "create_vlan_subif.vat",
655 sw_if_index=sw_if_index,
657 if output[0]["retval"] == 0:
658 sw_subif_index = output[0]["sw_if_index"]
659 logger.trace('VLAN subinterface with sw_if_index {} and VLAN ID {} '
660 'created on node {}'.format(sw_subif_index,
663 raise RuntimeError('Unable to create VLAN subinterface on node {}'
664 .format(node['host']))
666 with VatTerminal(node, False) as vat:
667 vat.vat_terminal_exec_cmd('exec show interfaces')
669 return '{}.{}'.format(interface, vlan), sw_subif_index
672 def create_vxlan_interface(node, vni, source_ip, destination_ip):
673 """Create VXLAN interface and return sw if index of created interface.
675 Executes "vxlan_add_del_tunnel src {src} dst {dst} vni {vni}" VAT
678 :param node: Node where to create VXLAN interface.
679 :param vni: VXLAN Network Identifier.
680 :param source_ip: Source IP of a VXLAN Tunnel End Point.
681 :param destination_ip: Destination IP of a VXLAN Tunnel End Point.
685 :type destination_ip: str
686 :returns: SW IF INDEX of created interface.
688 :raises RuntimeError: if it is unable to create VxLAN interface on the
691 output = VatExecutor.cmd_from_template(node, "vxlan_create.vat",
697 if output["retval"] == 0:
698 return output["sw_if_index"]
700 raise RuntimeError('Unable to create VXLAN interface on node {0}'
704 def vxlan_dump(node, interface=None):
705 """Get VxLAN data for the given interface.
707 :param node: VPP node to get interface data from.
708 :param interface: Numeric index or name string of a specific interface.
709 If None, information about all VxLAN interfaces is returned.
711 :type interface: int or str
712 :returns: Dictionary containing data for the given VxLAN interface or if
713 interface=None, the list of dictionaries with all VxLAN interfaces.
715 :raises TypeError: if the data type of interface is neither basestring
718 param = "sw_if_index"
719 if interface is None:
722 elif isinstance(interface, basestring):
723 sw_if_index = Topology.get_interface_sw_index(node, interface)
724 elif isinstance(interface, int):
725 sw_if_index = interface
727 raise TypeError("Wrong interface format {0}".format(interface))
729 with VatTerminal(node) as vat:
730 response = vat.vat_terminal_exec_cmd_from_template(
731 "vxlan_dump.vat", param=param, sw_if_index=sw_if_index)
734 for vxlan in response[0]:
735 if vxlan["sw_if_index"] == sw_if_index:
741 def vhost_user_dump(node):
742 """Get vhost-user data for the given node.
744 :param node: VPP node to get interface data from.
746 :returns: List of dictionaries with all vhost-user interfaces.
749 with VatTerminal(node) as vat:
750 response = vat.vat_terminal_exec_cmd_from_template(
751 "vhost_user_dump.vat")
756 def tap_dump(node, name=None):
757 """Get all TAP interface data from the given node, or data about
758 a specific TAP interface.
760 :param node: VPP node to get data from.
761 :param name: Optional name of a specific TAP interface.
764 :returns: Dictionary of information about a specific TAP interface, or
765 a List of dictionaries containing all TAP data for the given node.
768 with VatTerminal(node) as vat:
769 response = vat.vat_terminal_exec_cmd_from_template(
774 for item in response[0]:
775 if name == item['dev_name']:
780 def create_subinterface(node, interface, sub_id, outer_vlan_id=None,
781 inner_vlan_id=None, type_subif=None):
782 """Create sub-interface on node. It is possible to set required
783 sub-interface type and VLAN tag(s).
785 :param node: Node to add sub-interface.
786 :param interface: Interface name on which create sub-interface.
787 :param sub_id: ID of the sub-interface to be created.
788 :param outer_vlan_id: Optional outer VLAN ID.
789 :param inner_vlan_id: Optional inner VLAN ID.
790 :param type_subif: Optional type of sub-interface. Values supported by
791 VPP: [no_tags] [one_tag] [two_tags] [dot1ad] [exact_match] [default_sub]
793 :type interface: str or int
795 :type outer_vlan_id: int
796 :type inner_vlan_id: int
797 :type type_subif: str
798 :returns: Name and index of created sub-interface.
800 :raises RuntimeError: If it is not possible to create sub-interface.
803 outer_vlan_id = 'outer_vlan_id {0}'.format(outer_vlan_id)\
804 if outer_vlan_id else ''
806 inner_vlan_id = 'inner_vlan_id {0}'.format(inner_vlan_id)\
807 if inner_vlan_id else ''
809 if type_subif is None:
812 if isinstance(interface, basestring):
813 iface_key = Topology.get_interface_by_name(node, interface)
814 sw_if_index = Topology.get_interface_sw_index(node, iface_key)
816 sw_if_index = interface
818 output = VatExecutor.cmd_from_template(node, "create_sub_interface.vat",
819 sw_if_index=sw_if_index,
821 outer_vlan_id=outer_vlan_id,
822 inner_vlan_id=inner_vlan_id,
823 type_subif=type_subif)
825 if output[0]["retval"] == 0:
826 sw_subif_index = output[0]["sw_if_index"]
827 logger.trace('Created subinterface with index {}'
828 .format(sw_subif_index))
830 raise RuntimeError('Unable to create sub-interface on node {}'
831 .format(node['host']))
833 with VatTerminal(node, json_param=False) as vat:
834 vat.vat_terminal_exec_cmd('exec show interfaces')
836 name = '{}.{}'.format(interface, sub_id)
837 return name, sw_subif_index
840 def create_gre_tunnel_interface(node, source_ip, destination_ip):
841 """Create GRE tunnel interface on node.
843 :param node: VPP node to add tunnel interface.
844 :param source_ip: Source of the GRE tunnel.
845 :param destination_ip: Destination of the GRE tunnel.
848 :type destination_ip: str
849 :returns: Name and index of created GRE tunnel interface.
851 :raises RuntimeError: If unable to create GRE tunnel interface.
853 output = VatExecutor.cmd_from_template(node, "create_gre.vat",
858 if output["retval"] == 0:
859 sw_if_index = output["sw_if_index"]
861 vat_executor = VatExecutor()
862 vat_executor.execute_script_json_out("dump_interfaces.vat", node)
863 interface_dump_json = vat_executor.get_script_stdout()
864 name = VatJsonUtil.get_interface_name_from_json(
865 interface_dump_json, sw_if_index)
866 return name, sw_if_index
868 raise RuntimeError('Unable to create GRE tunnel on node {}.'
872 def vpp_create_loopback(node):
873 """Create loopback interface on VPP node.
875 :param node: Node to create loopback interface on.
877 :returns: SW interface index.
879 :raises RuntimeError: If it is not possible to create loopback on the
882 out = VatExecutor.cmd_from_template(node, "create_loopback.vat")
883 if out[0].get('retval') == 0:
884 return out[0].get('sw_if_index')
886 raise RuntimeError('Create loopback failed on node "{}"'
887 .format(node['host']))
890 def vpp_enable_input_acl_interface(node, interface, ip_version,
892 """Enable input acl on interface.
894 :param node: VPP node to setup interface for input acl.
895 :param interface: Interface to setup input acl.
896 :param ip_version: Version of IP protocol.
897 :param table_index: Classify table index.
899 :type interface: str or int
900 :type ip_version: str
901 :type table_index: int
903 if isinstance(interface, basestring):
904 sw_if_index = Topology.get_interface_sw_index(node, interface)
906 sw_if_index = interface
908 with VatTerminal(node) as vat:
909 vat.vat_terminal_exec_cmd_from_template("input_acl_int.vat",
910 sw_if_index=sw_if_index,
911 ip_version=ip_version,
912 table_index=table_index)
915 def get_interface_classify_table(node, interface):
916 """Get name of classify table for the given interface.
918 :param node: VPP node to get data from.
919 :param interface: Name or sw_if_index of a specific interface.
921 :type interface: str or int
922 :returns: Classify table name.
925 if isinstance(interface, basestring):
926 sw_if_index = InterfaceUtil.get_sw_if_index(node, interface)
928 sw_if_index = interface
930 with VatTerminal(node) as vat:
931 data = vat.vat_terminal_exec_cmd_from_template(
932 "classify_interface_table.vat",
933 sw_if_index=sw_if_index)
937 def get_interface_vrf_table(node, interface):
938 """Get vrf ID for the given interface.
940 :param node: VPP node.
941 :param interface: Name or sw_if_index of a specific interface.
943 :type interface: str or int
944 :returns: vrf ID of the specified interface.
948 if isinstance(interface, basestring):
949 sw_if_index = InterfaceUtil.get_sw_if_index(node, interface)
951 sw_if_index = interface
953 with VatTerminal(node) as vat:
954 data = vat.vat_terminal_exec_cmd_from_template(
955 "interface_vrf_dump.vat",
956 sw_if_index=sw_if_index)
957 return data[0]["vrf_id"]
960 def get_sw_if_index(node, interface_name):
961 """Get sw_if_index for the given interface from actual interface dump.
963 :param node: VPP node to get interface data from.
964 :param interface_name: Name of the specific interface.
966 :type interface_name: str
967 :returns: sw_if_index of the given interface.
971 with VatTerminal(node) as vat:
972 if_data = vat.vat_terminal_exec_cmd_from_template(
973 "interface_dump.vat")
974 for interface in if_data[0]:
975 if interface["interface_name"] == interface_name:
976 return interface["sw_if_index"]
981 def vxlan_gpe_dump(node, interface_name=None):
982 """Get VxLAN GPE data for the given interface.
984 :param node: VPP node to get interface data from.
985 :param interface_name: Name of the specific interface. If None,
986 information about all VxLAN GPE interfaces is returned.
988 :type interface_name: str
989 :returns: Dictionary containing data for the given VxLAN GPE interface
990 or if interface=None, the list of dictionaries with all VxLAN GPE
995 with VatTerminal(node) as vat:
996 vxlan_gpe_data = vat.vat_terminal_exec_cmd_from_template(
997 "vxlan_gpe_dump.vat")
1000 sw_if_index = InterfaceUtil.get_sw_if_index(node, interface_name)
1002 for vxlan_gpe in vxlan_gpe_data[0]:
1003 if vxlan_gpe["sw_if_index"] == sw_if_index:
1007 return vxlan_gpe_data[0]
1010 def vpp_proxy_arp_interface_enable(node, interface):
1011 """Enable proxy ARP on interface.
1013 :param node: VPP node to enable proxy ARP on interface.
1014 :param interface: Interface to enable proxy ARP.
1016 :type interface: str or int
1018 if isinstance(interface, basestring):
1019 sw_if_index = InterfaceUtil.get_sw_if_index(node, interface)
1021 sw_if_index = interface
1023 with VatTerminal(node) as vat:
1024 vat.vat_terminal_exec_cmd_from_template(
1025 "proxy_arp_intfc_enable.vat",
1026 sw_if_index=sw_if_index)
1029 def vpp_ip_source_check_setup(node, interface):
1030 """Setup Reverse Path Forwarding source check on interface.
1032 :param node: Node to setup RPF source check.
1033 :param interface: Interface name to setup RPF source check.
1035 :type interface: str
1037 with VatTerminal(node) as vat:
1038 vat.vat_terminal_exec_cmd_from_template("ip_source_check.vat",
1039 interface_name=interface)
1042 def assign_interface_to_fib_table(node, interface, table_id, ipv6=False):
1043 """Assign VPP interface to specific VRF/FIB table.
1045 :param node: VPP node where the FIB and interface are located.
1046 :param interface: Interface to be assigned to FIB.
1047 :param table_id: VRF table ID.
1048 :param ipv6: Assign to IPv6 table. Default False.
1050 :type interface: str or int
1054 if isinstance(interface, basestring):
1055 sw_if_index = Topology.get_interface_sw_index(node, interface)
1057 sw_if_index = interface
1059 ipv6 = 'ipv6' if ipv6 else ''
1061 with VatTerminal(node) as vat:
1062 ret = vat.vat_terminal_exec_cmd_from_template(
1063 "set_fib_to_interface.vat",
1064 sw_index=sw_if_index, vrf=table_id, ipv6=ipv6)
1066 if ret[0]["retval"] != 0:
1067 raise RuntimeError('Unable to assign interface to FIB node {}.'
1072 def set_linux_interface_mac(node, interface, mac, namespace=None):
1073 """Set MAC address for interface in linux.
1075 :param node: Node where to execute command.
1076 :param interface: Interface in namespace.
1077 :param mac: MAC to be assigned to interface.
1078 :param namespace: Execute command in namespace. Optional
1080 :type interface: str
1082 :type namespace: str
1084 if namespace is not None:
1085 cmd = 'ip netns exec {} ip link set {} address {}'.format(
1086 namespace, interface, mac)
1088 cmd = 'ip link set {} address {}'.format(interface, mac)
1089 exec_cmd_no_error(node, cmd, sudo=True)