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Diffstat (limited to 'resources/libraries/python/TrafficScriptExecutor.py')
-rw-r--r-- | resources/libraries/python/TrafficScriptExecutor.py | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/resources/libraries/python/TrafficScriptExecutor.py b/resources/libraries/python/TrafficScriptExecutor.py new file mode 100644 index 0000000000..2e65a520d0 --- /dev/null +++ b/resources/libraries/python/TrafficScriptExecutor.py @@ -0,0 +1,91 @@ +# Copyright (c) 2016 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. + +"""Traffic script executor library.""" + +from constants import Constants +from ssh import SSH +from robot.api import logger + +__all__ = ['TrafficScriptExecutor'] + + +class TrafficScriptExecutor(object): + """Traffic script executor utilities.""" + + @staticmethod + def _escape(string): + """Escape quotation mark and dollar mark for shell command. + + :param string: String to escape. + :type string: str + :return: Escaped string. + :rtype: str + """ + return string.replace('"', '\\"').replace("$", "\\$") + + @staticmethod + def run_traffic_script_on_node(script_file_name, node, script_args, + timeout=10): + """Run traffic script on the TG node. + + :param script_file_name: Traffic script name + :param node: Node to run traffic script on. + :param script_args: Traffic scripts arguments. + :param timeout: Timeout (optional). + :type script_file_name: str + :type node: dict + :type script_args: str + :type timeout: int + """ + logger.trace("{}".format(timeout)) + ssh = SSH() + ssh.connect(node) + cmd = ("cd {}; virtualenv env && " + + "export PYTHONPATH=${{PWD}}; " + + ". ${{PWD}}/env/bin/activate; " + + "resources/traffic_scripts/{} {}") \ + .format(Constants.REMOTE_FW_DIR, script_file_name, + script_args) + (ret_code, stdout, stderr) = ssh.exec_command_sudo( + 'sh -c "{}"'.format(TrafficScriptExecutor._escape(cmd)), + timeout=timeout) + logger.debug("stdout: {}".format(stdout)) + logger.debug("stderr: {}".format(stderr)) + logger.debug("ret_code: {}".format(ret_code)) + if ret_code != 0: + raise Exception("Traffic script execution failed") + + @staticmethod + def traffic_script_gen_arg(rx_if, tx_if, src_mac, dst_mac, src_ip, dst_ip): + """Generate traffic script basic arguments string. + + :param rx_if: Interface that sends traffic. + :param tx_if: Interface that receives traffic. + :param src_mac: Source MAC address. + :param dst_mac: Destination MAC address. + :param src_ip: Source IP address. + :param dst_ip: Destination IP address. + :type rx_if: str + :type tx_if: str + :type src_mac: str + :type dst_mac: str + :type src_ip: str + :type dst_ip: str + :return: Traffic script arguments string. + :rtype: str + """ + args = '--rx_if {0} --tx_if {1} --src_mac {2} --dst_mac {3} --src_ip' \ + ' {4} --dst_ip {5}'.format(rx_if, tx_if, src_mac, dst_mac, src_ip, + dst_ip) + return args |