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+# Copyright (c) 2017 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:
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""
+This module implements functionality which configure and start
+the NSH SFC functional test.
+"""
+
+from resources.libraries.python.ssh import SSH
+from resources.libraries.python.constants import Constants as con
+from resources.libraries.python.topology import Topology
+
+class SFCTest(object):
+ """Configure and Start the NSH SFC functional tests."""
+
+ @staticmethod
+ def config_and_start_SFC_test(dut_node, dut_port, adj_mac, testtype):
+ """
+ Start the SFC functional on the dut_node.
+
+ :param dut_node: Will execute the SFC on this node.
+ :param dut_port: The ingress interface on the DUT.
+ :param adj_mac: The adjacency interface MAC.
+ :param testtype: The SFC functional test type.
+ (Classifier, Proxy Inbound, Proxy Outbound, SFF).
+ :type dut_node: dict
+ :type dut_port: str
+ :type adj_mac: str
+ :type testtype: str
+ :returns: none
+ :raises RuntimeError: If the script execute fails.
+ """
+
+ vpp_intf_name = Topology.get_interface_name(dut_node, dut_port)
+
+ ssh = SSH()
+ ssh.connect(dut_node)
+
+ if testtype == "Classifier":
+ exec_shell = "set_sfc_classifier.sh"
+ elif testtype == "Proxy Inbound":
+ exec_shell = "set_nsh_proxy_inbound.sh"
+ elif testtype == "Proxy Outbound":
+ exec_shell = "set_nsh_proxy_outbound.sh"
+ else:
+ exec_shell = "set_sfc_sff.sh"
+
+ cmd = 'cd {0}/nsh_sfc_tests/sfc_scripts/ && sudo ./{1} {2} ' \
+ '{3} {4}'.format(con.REMOTE_FW_DIR, exec_shell, vpp_intf_name,
+ adj_mac, dut_port)
+
+ (ret_code, _, _) = ssh.exec_command(cmd, timeout=600)
+ if ret_code != 0:
+ raise RuntimeError('Failed to execute SFC setup script ' \
+ '{0} at node {1}'.format(exec_shell, dut_node['host']))
+
+ @staticmethod
+ def start_the_tcpdump_on_the_node(from_node, from_port, filter_ip):
+ """
+ Start the tcpdump on the frome_node.
+
+ :param from_node: Will execute the tcpdump on this node.
+ :param from_port: Will capture the packets on this interface.
+ :param filter_ip: filter the dest ip.
+ :type from_node: dict
+ :type from_port: str
+ :type filter_ip: str
+ :returns: none
+ :raises RuntimeError: If the script "start_tcpdump.sh" fails.
+ """
+
+ interface_name = Topology.get_interface_name(from_node, from_port)
+
+ ssh = SSH()
+ ssh.connect(from_node)
+
+ cmd = 'cd {0}/nsh_sfc_tests/sfc_scripts/ && sudo ./start_tcpdump.sh ' \
+ '{1} {2}'.format(con.REMOTE_FW_DIR, interface_name, filter_ip)
+
+ (ret_code, _, _) = ssh.exec_command(cmd, timeout=600)
+ if ret_code != 0:
+ raise RuntimeError('Failed to exec start_tcpdump.sh at node {0}'.
+ format(from_node['host']))