"""Defines nodes and topology structure."""
-from resources.libraries.python.parsers.JsonParser import JsonParser
-from resources.libraries.python.VatExecutor import VatExecutor
-from resources.libraries.python.ssh import SSH
-from resources.libraries.python.InterfaceSetup import InterfaceSetup
from robot.api import logger
from robot.libraries.BuiltIn import BuiltIn
from robot.api.deco import keyword
This method returns the interface names asociated with given links
for a given node.
- The resulting dictionary can be then used to with VatConfigGenerator
- to generate a VAT script with proper interface names.
:param link_names: list of names of the link that a interface is
connected to.
:param node: the node topology directory
return self._get_interface_by_key_value(node, "vpp_sw_index", sw_index)
- @staticmethod
- def convert_mac_to_number_list(mac_address):
- """Convert mac address string to list of decimal numbers.
-
- Converts a : separated mac address to decimal number list as used
- in json interface dump.
- :param mac_address: string mac address
- :return: list representation of mac address
- """
-
- list_mac = []
- for num in mac_address.split(":"):
- list_mac.append(int(num, 16))
- return list_mac
-
- def _extract_vpp_interface_by_mac(self, interfaces_list, mac_address):
- """Return interface dictionary from interface_list by mac address.
-
- Extracts interface dictionary from all of the interfaces in interfaces
- list parsed from json according to mac_address of the interface
- :param interfaces_list: dictionary of all interfaces parsed from json
- :param mac_address: string mac address of interface we are looking for
- :return: interface dictionary from json
- """
-
- interface_dict = {}
- list_mac_address = self.convert_mac_to_number_list(mac_address)
- logger.trace(str(list_mac_address))
- for interface in interfaces_list:
- # TODO: create vat json integrity checking and move there
- if "l2_address" not in interface:
- raise KeyError(
- "key l2_address not found in interface dict."
- "Probably input list is not parsed from correct VAT "
- "json output.")
- if "l2_address_length" not in interface:
- raise KeyError(
- "key l2_address_length not found in interface "
- "dict. Probably input list is not parsed from correct "
- "VAT json output.")
- mac_from_json = interface["l2_address"][:6]
- if mac_from_json == list_mac_address:
- if interface["l2_address_length"] != 6:
- raise ValueError("l2_address_length value is not 6.")
- interface_dict = interface
- break
- return interface_dict
-
- def vpp_interface_name_from_json_by_mac(self, json_data, mac_address):
- """Return vpp interface name string from VAT interface dump json output
-
- Extracts the name given to an interface by VPP.
- These interface names differ from what you would see if you
- used the ipconfig or similar command.
- Required json data can be obtained by calling :
- VatExecutor.execute_script_json_out("dump_interfaces.vat", node)
- :param json_data: string json data from sw_interface_dump VAT command
- :param mac_address: string containing mac address of interface
- whose vpp name we wish to discover.
- :return: string vpp interface name
- """
-
- interfaces_list = JsonParser().parse_data(json_data)
- # TODO: checking if json data is parsed correctly
- interface_dict = self._extract_vpp_interface_by_mac(interfaces_list,
- mac_address)
- interface_name = interface_dict["interface_name"]
- return interface_name
-
- def _update_node_interface_data_from_json(self, node, interface_dump_json):
- """Update node vpp data in node__DICT from json interface dump.
-
- This method updates vpp interface names and sw indexexs according to
- interface mac addresses found in interface_dump_json
- :param node: node dictionary
- :param interface_dump_json: json output from dump_interface_list VAT
- command
- """
-
- interface_list = JsonParser().parse_data(interface_dump_json)
- for ifc in node['interfaces'].values():
- if 'link' not in ifc:
- continue
- if_mac = ifc['mac_address']
- interface_dict = self._extract_vpp_interface_by_mac(interface_list,
- if_mac)
- if not interface_dict:
- raise Exception('Interface {0} not found by MAC {1}'.
- format(ifc, if_mac))
- ifc['name'] = interface_dict["interface_name"]
- ifc['vpp_sw_index'] = interface_dict["sw_if_index"]
- ifc['mtu'] = interface_dict["mtu"]
-
- def update_vpp_interface_data_on_node(self, node):
- """Update vpp generated interface data for a given node in DICT__nodes
-
- Updates interface names, software index numbers and any other details
- generated specifically by vpp that are unknown before testcase run.
- :param node: Node selected from DICT__nodes
- """
-
- vat_executor = VatExecutor()
- vat_executor.execute_script_json_out("dump_interfaces.vat", node)
- interface_dump_json = vat_executor.get_script_stdout()
- self._update_node_interface_data_from_json(node,
- interface_dump_json)
-
- @staticmethod
- def update_tg_interface_data_on_node(node):
- """Update interface name for TG/linux node in DICT__nodes
-
- :param node: Node selected from DICT__nodes.
- :type node: dict
-
- .. note::
- # for dev in `ls /sys/class/net/`;
- > do echo "\"`cat /sys/class/net/$dev/address`\": \"$dev\""; done
- "52:54:00:9f:82:63": "eth0"
- "52:54:00:77:ae:a9": "eth1"
- "52:54:00:e1:8a:0f": "eth2"
- "00:00:00:00:00:00": "lo"
-
- .. todo:: parse lshw -json instead
- """
- # First setup interface driver specified in yaml file
- InterfaceSetup.tg_set_interfaces_default_driver(node)
-
- # Get interface names
- ssh = SSH()
- ssh.connect(node)
-
- cmd = 'for dev in `ls /sys/class/net/`; do echo "\\"`cat ' \
- '/sys/class/net/$dev/address`\\": \\"$dev\\""; done;'
-
- (ret_code, stdout, _) = ssh.exec_command(cmd)
- if int(ret_code) != 0:
- raise Exception('Get interface name and MAC failed')
- tmp = "{" + stdout.rstrip().replace('\n', ',') + "}"
- interfaces = JsonParser().parse_data(tmp)
- for if_k, if_v in node['interfaces'].items():
- if if_k == 'mgmt':
- continue
- name = interfaces.get(if_v['mac_address'])
- if name is None:
- continue
- if_v['name'] = name
-
- # Set udev rules for interfaces
- InterfaceSetup.tg_set_interfaces_udev_rules(node)
-
- def update_all_interface_data_on_all_nodes(self, nodes):
- """Update interface names on all nodes in DICT__nodes
-
- :param nodes: Nodes in the topology.
- :type nodes: dict
-
- This method updates the topology dictionary by querying interface lists
- of all nodes mentioned in the topology dictionary.
- It does this by dumping interface list to json output from all devices
- using vpp_api_test, and pairing known information from topology
- (mac address/pci address of interface) to state from VPP.
- For TG/linux nodes add interface name only.
- """
-
- for node_data in nodes.values():
- if node_data['type'] == NodeType.DUT:
- self.update_vpp_interface_data_on_node(node_data)
- elif node_data['type'] == NodeType.TG:
- self.update_tg_interface_data_on_node(node_data)
-
@staticmethod
def get_interface_sw_index(node, interface):
"""Get VPP sw_index for the interface.
Code Review / csit.git / blobdiff