"""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
def load_topo_from_yaml():
- """Loads topology from file defined in "${TOPOLOGY_PATH}" variable
+ """Load topology from file defined in "${TOPOLOGY_PATH}" variable
:return: nodes from loaded topology
"""
DUT = 'DUT'
# Traffic Generator (this node has traffic generator on it)
TG = 'TG'
+ # Virtual Machine (this node running on DUT node)
+ VM = 'VM'
+
class NodeSubTypeTG(object):
#T-Rex traffic generator
TREX = 'TREX'
# Moongen
MOONGEN = 'MOONGEN'
- #IxNetwork
+ # IxNetwork
IXNET = 'IXNET'
DICT__nodes = load_topo_from_yaml()
the used topology.
"""
- def __init__(self):
- pass
-
@staticmethod
def get_node_by_hostname(nodes, hostname):
"""Get node from nodes of the topology by hostname.
@staticmethod
def _get_interface_by_key_value(node, key, value):
- """ Return node interface name according to key and value
+ """Return node interface name according to key and value
:param node: :param node: the node dictionary
:param key: key by which to select the interface.
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):
- """Returns 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"]
-
- 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
+ def get_interface_sw_index(node, interface):
+ """Get VPP sw_if_index for the interface.
- :param node: Node selected from DICT__nodes.
+ :param node: Node to get interface sw_if_index on.
+ :param interface: Interface identifier.
: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.
+ :type interface: str or int
+ :return: Return sw_if_index or None if not found.
"""
-
- 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)
+ try:
+ return int(interface)
+ except ValueError:
+ for port in node['interfaces'].values():
+ port_name = port.get('name')
+ if port_name == interface:
+ return port.get('vpp_sw_index')
+ return None
@staticmethod
- def get_interface_sw_index(node, interface):
- """Get VPP sw_index for the interface.
+ def get_interface_mtu(node, interface):
+ """Get interface MTU.
- :param node: Node to get interface sw_index on.
+ Returns physical layer MTU (max. size of Ethernet frame).
+ :param node: Node to get interface MTU on.
:param interface: Interface name.
:type node: dict
:type interface: str
- :return: Return sw_index or None if not found.
+ :return: MTU or None if not found.
+ :rtype: int
"""
for port in node['interfaces'].values():
port_name = port.get('name')
- if port_name is None:
- continue
if port_name == interface:
- return port.get('vpp_sw_index')
+ return port.get('mtu')
return None
"""
for port in node['interfaces'].values():
port_name = port.get('name')
- if port_name is None:
- continue
if port_name == interface:
return port.get('mac_address')
:rtype: (dict, dict)
"""
link_name = None
- # get link name where the interface belongs to
+ # get link name where the interface belongs to
for port_name, port_data in node['interfaces'].iteritems():
if port_name == 'mgmt':
continue
@staticmethod
def _get_node_active_link_names(node):
- """Returns list of link names that are other than mgmt links
+ """Return list of link names that are other than mgmt links
:param node: node topology dictionary
:return: list of strings that represent link names occupied by the node
@keyword('Get active links connecting "${node1}" and "${node2}"')
def get_active_connecting_links(self, node1, node2):
- """Returns list of link names that connect together node1 and node2
+ """Return list of link names that connect together node1 and node2
:param node1: node topology dictionary
:param node2: node topology dictionary
:param node2: Second node.
:type node1: dict
:type node2: dict
- :return: Engress interfaces.
+ :return: Egress interfaces.
:rtype: list
"""
interfaces = []
:param node2: Second node.
:type node1: dict
:type node2: dict
- :return: Engress interface.
+ :return: Egress interface.
:rtype: str
"""
interfaces = self.get_egress_interfaces_for_nodes(node1, node2)
if not interfaces:
- raise RuntimeError('No engress interface for nodes')
+ raise RuntimeError('No egress interface for nodes')
return interfaces[0]
@keyword('Get link data useful in circular topology test from tg "${tgen}"'
' dut1 "${dut1}" dut2 "${dut2}"')
def get_links_dict_from_nodes(self, tgen, dut1, dut2):
- """Returns link combinations used in tests in circular topology.
+ """Return link combinations used in tests in circular topology.
For the time being it returns links from the Node path:
TG->DUT1->DUT2->TG
- :param tg: traffic generator node data
+ :param tgen: traffic generator node data
:param dut1: DUT1 node data
:param dut2: DUT2 node data
- :type tg: dict
+ :type tgen: dict
:type dut1: dict
:type dut2: dict
:return: dictionary of possible link combinations
@staticmethod
def get_node_hostname(node):
+ """Return host (hostname/ip address) of the node.
+
+ :param node: Node created from topology.
+ :type node: dict
+ :return: host as 'str' type
"""
- :param node: node dictionary
- :return: host name as 'str' type
- """
- return node['host']
\ No newline at end of file
+ return node['host']
Code Review / csit.git / blobdiff