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 """Implements IPv4 RobotFramework keywords"""
16 from robot.api import logger as log
17 from robot.api.deco import keyword
19 from resources.libraries.python.topology import Topology
20 from resources.libraries.python.IPv4Setup import get_node
21 from resources.libraries.python.ssh import exec_cmd
24 class IPv4Util(object):
25 """Implements keywords for IPv4 tests."""
28 @keyword('From node "${node}" interface "${port}" ARP-ping '
29 'IPv4 address "${ip_address}"')
30 def arp_ping(node, interface, ip_address):
31 log.debug('From node {} interface {} ARP-ping IPv4 address {}'.
32 format(Topology.get_node_hostname(node),
33 interface, ip_address))
34 get_node(node).arp_ping(ip_address, interface)
37 def set_interface_address(node, interface, address, prefix_length):
38 """See IPv4Node.set_ip for more information.
40 :param node: Node where IP address should be set to.
41 :param interface: Interface name.
42 :param address: IP address.
43 :param prefix_length: Prefix length.
47 :type prefix_length: int
49 log.debug('Node {} interface {} has IPv4 address {} with prefix '
50 'length {}'.format(Topology.get_node_hostname(node),
51 interface, address, prefix_length))
52 get_node(node).set_ip(interface, address, int(prefix_length))
55 def set_route(node, network, prefix_length, interface, gateway):
56 """See IPv4Node.set_route for more information.
58 :param node: Node where IP address should be set to.
59 :param network: IP network.
60 :param prefix_length: Prefix length.
61 :param interface: Interface name.
62 :param gateway: Gateway.
65 :type prefix_length: int
69 log.debug('Node {} routes to network {} with prefix length {} '
70 'via {} interface {}'.format(Topology.get_node_hostname(node),
71 network, prefix_length,
73 get_node(node).set_route(network, int(prefix_length),
77 @keyword('Get IPv4 address prefix of node "${node}" interface "${port}" '
78 'from "${nodes_addr}"')
79 def get_ip_addr_prefix_length(node, port, nodes_addr):
80 """ Get IPv4 address prefix for specified interface.
82 :param node: Node dictionary.
83 :param port: Interface name.
84 :param nodes_addr: Available nodes IPv4 addresses.
87 :type nodes_addr: dict
88 :return: IPv4 prefix length.
91 for net in nodes_addr.values():
92 for p in net['ports'].values():
93 if p['node'] == node['host'] and p['if'] == port:
96 raise Exception('Subnet not found for node {n} port {p}'.
97 format(n=node['host'], p=port))
100 @keyword('Get IPv4 subnet of node "${node}" interface "${port}" from '
102 def get_ip_addr_subnet(node, port, nodes_addr):
103 """ Get IPv4 subnet of specified interface.
105 :param node: Node dictionary.
106 :param port: Interface name.
107 :param nodes_addr: Available nodes IPv4 addresses.
110 :type nodes_addr: dict
111 :return: IPv4 subnet.
114 for net in nodes_addr.values():
115 for p in net['ports'].values():
116 if p['node'] == node['host'] and p['if'] == port:
117 return net['net_addr']
119 raise Exception('Subnet not found for node {n} port {p}'.
120 format(n=node['host'], p=port))
123 @keyword('Flush IPv4 addresses "${port}" "${node}"')
124 def flush_ip_addresses(port, node):
125 """See IPv4Node.flush_ip_addresses for more information.
131 get_node(node).flush_ip_addresses(port)
134 def get_link_address(link, nodes_addr):
135 """Get link IPv4 address.
137 :param link: Link name.
138 :param nodes_addr: Available nodes IPv4 addresses.
140 :type nodes_addr: dict
141 :return: Link IPv4 address.
144 net = nodes_addr.get(link)
146 raise ValueError('Link "{0}" not found'.format(link))
147 return net.get('net_addr')
150 def get_link_prefix(link, nodes_addr):
151 """Get link IPv4 address prefix.
153 :param link: Link name.
154 :param nodes_addr: Available nodes IPv4 addresses.
156 :type nodes_addr: dict
157 :return: Link IPv4 address prefix.
160 net = nodes_addr.get(link)
162 raise ValueError('Link "{0}" not found'.format(link))
163 return net.get('prefix')
166 def send_ping_from_node_to_dst(node, destination, namespace=None,
167 ping_count=3, interface=None):
168 """Send a ping from node to destination. Optionally, you can define a
169 namespace and interface from where to send a ping.
171 :param node: Node to start ping on.
172 :param destination: IPv4 address where to send ping.
173 :param namespace: Namespace to send ping from. Optional
174 :param ping_count: Number of pings to send. Default 3
175 :param interface: Interface from where to send ping. Optional
177 :type destination: str
179 :type ping_count: int
181 :raises RuntimeError: If no response for ping, raise error
184 if namespace is not None:
185 cmd = 'ip netns exec {0} ping -c{1} {2}'.format(
186 namespace, ping_count, destination)
187 elif interface is not None:
188 cmd = 'ping -I {0} -c{1} {2}'.format(
189 interface, ping_count, destination)
191 cmd = 'ping -c{0} {1}'.format(ping_count, destination)
192 rc, stdout, stderr = exec_cmd(node, cmd, sudo=True)
194 raise RuntimeError("Ping Not Successful")
197 def set_linux_interface_arp(node, interface, ip, mac, namespace=None):
198 """Set arp on interface in linux.
200 :param node: Node where to execute command.
201 :param interface: Interface in namespace.
202 :param ip: IP for arp.
203 :param mac: MAC address.
204 :param namespace: Execute command in namespace. Optional
210 :raises RuntimeError: Could not set ARP properly.
212 if namespace is not None:
213 cmd = 'ip netns exec {} arp -i {} -s {} {}'.format(
214 namespace, interface, ip, mac)
216 cmd = 'arp -i {} -s {} {}'.format(interface, ip, mac)
217 rc, _, stderr = exec_cmd(node, cmd, sudo=True)
219 raise RuntimeError("Arp set not successful, reason:{}".
223 def set_linux_interface_ip(node, interface, ip, prefix, namespace=None):
224 """Set IP address to interface in linux.
226 :param node: Node where to execute command.
227 :param interface: Interface in namespace.
228 :param ip: IP to be set on interface.
229 :param prefix: IP prefix.
230 :param namespace: Execute command in namespace. Optional
236 :raises RuntimeError: IP could not be set.
238 if namespace is not None:
239 cmd = 'ip netns exec {} ip addr add {}/{} dev {}'.format(
240 namespace, ip, prefix, interface)
242 cmd = 'ip addr add {}/{} dev {}'.format(ip, prefix, interface)
243 (rc, _, stderr) = exec_cmd(node, cmd, timeout=5, sudo=True)
246 'Could not set IP for interface, reason:{}'.format(stderr))