-# 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:
"""Common IP utilities library."""
+import re
+
from ipaddress import IPv4Network, ip_address
from resources.libraries.python.ssh import SSH
class IPUtil(object):
"""Common IP utilities"""
+ @staticmethod
+ def ip_to_int(ip_str):
+ """Convert IP address from string format (e.g. 10.0.0.1) to integer
+ representation (167772161).
+
+ :param ip_str: IP address in string representation.
+ :type ip_str: str
+ :returns: Integer representation of IP address.
+ :rtype: int
+ """
+ return int(ip_address(unicode(ip_str)))
+
+ @staticmethod
+ def int_to_ip(ip_int):
+ """Convert IP address from integer representation (e.g. 167772161) to
+ string format (10.0.0.1).
+
+ :param ip_int: IP address in integer representation.
+ :type ip_int: int
+ :returns: String representation of IP address.
+ :rtype: str
+ """
+ return str(ip_address(ip_int))
+
@staticmethod
def vpp_ip_probe(node, interface, addr, if_type="key"):
"""Run ip probe on VPP node.
cmd = 'sysctl -w net.{0}.ip_forward=1'.format(ip_ver)
exec_cmd_no_error(node, cmd, sudo=True)
+ @staticmethod
+ def get_linux_interface_name(node, pci_addr):
+ """Get the interface name.
+
+ :param node: Node where to execute command.
+ :param pci_addr: PCI address
+ :type node: dict
+ :type pci_addr: str
+ :returns: Interface name
+ :rtype: str
+ :raises RuntimeError: If cannot get the information about interfaces.
+ """
+
+ regex_intf_info = r"pci@" \
+ r"([0-9a-f]{4}:[0-9a-f]{2}:[0-9a-f]{2}.[0-9a-f])\s*" \
+ r"([a-zA-Z0-9]*)\s*network"
+
+ cmd = "lshw -class network -businfo"
+ ret_code, stdout, stderr = exec_cmd(node, cmd, timeout=30, sudo=True)
+ if ret_code != 0:
+ raise RuntimeError('Could not get information about interfaces, '
+ 'reason:{0}'.format(stderr))
+
+ for line in stdout.splitlines()[2:]:
+ try:
+ if re.search(regex_intf_info, line).group(1) == pci_addr:
+ return re.search(regex_intf_info, line).group(2)
+ except AttributeError:
+ continue
+ return None
+
+ @staticmethod
+ def set_linux_interface_up(node, interface):
+ """Set the specified interface up.
+
+ :param node: Node where to execute command.
+ :param interface: Interface in namespace.
+ :type node: dict
+ :type interface: str
+ :raises RuntimeError: If the interface could not be set up.
+ """
+
+ cmd = "ip link set {0} up".format(interface)
+ ret_code, _, stderr = exec_cmd(node, cmd, timeout=30, sudo=True)
+ if ret_code != 0:
+ raise RuntimeError('Could not set the interface up, reason:{0}'.
+ format(stderr))
+
@staticmethod
def set_linux_interface_ip(node, interface, ip_addr, prefix,
namespace=None):