Fix PyLint errors
[csit.git] / resources / libraries / python / VPPUtil.py
index 3a0148a..63d9aac 100644 (file)
@@ -1,4 +1,4 @@
-# Copyright (c) 2018 Cisco and/or its affiliates.
+# Copyright (c) 2019 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:
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-"""VPP util library"""
-from resources.libraries.python.ssh import SSH
+"""VPP util library."""
+
+import time
+
+from robot.api import logger
+
+from resources.libraries.python.constants import Constants
+from resources.libraries.python.DUTSetup import DUTSetup
+from resources.libraries.python.PapiExecutor import PapiExecutor
+from resources.libraries.python.PapiErrors import PapiError
+from resources.libraries.python.ssh import exec_cmd, exec_cmd_no_error
+from resources.libraries.python.topology import NodeType
+from resources.libraries.python.VatExecutor import VatExecutor
 
 
 class VPPUtil(object):
@@ -42,10 +53,45 @@ class VPPUtil(object):
         if additional_cmds:
             for cmd in additional_cmds:
                 def_setting_tb_displayed['Custom Setting: {}'.format(cmd)] = cmd
-        ssh = SSH()
-        ssh.connect(node)
-        for _, value in def_setting_tb_displayed.items():
-            ssh.exec_command_sudo('vppctl sh {}'.format(value))
+
+        for _, cmd in def_setting_tb_displayed.items():
+            command = 'vppctl sh {cmd}'.format(cmd=cmd)
+            exec_cmd_no_error(node, command, timeout=30, sudo=True)
+
+    @staticmethod
+    def start_vpp_service(node, retries=60):
+        """Start VPP service on the specified node.
+
+        :param node: VPP node.
+        :param retries: Number of times (default 60) to re-try waiting.
+        :type node: dict
+        :type retries: int
+        :raises RuntimeError: If VPP service fails to start.
+        """
+        DUTSetup.start_service(node, Constants.VPP_UNIT)
+        # Sleep 1 second, up to <retry> times,
+        # and verify if VPP is running.
+        for _ in range(retries):
+            time.sleep(1)
+            command = 'vppctl show pci'
+            ret, stdout, _ = exec_cmd(node, command, timeout=30, sudo=True)
+            if not ret and 'Connection refused' not in stdout:
+                break
+        else:
+            raise RuntimeError('VPP failed to start on host {name}'.
+                               format(name=node['host']))
+        DUTSetup.get_service_logs(node, Constants.VPP_UNIT)
+
+    @staticmethod
+    def start_vpp_service_on_all_duts(nodes):
+        """Start up the VPP service on all nodes.
+
+        :param nodes: Nodes in the topology.
+        :type nodes: dict
+        """
+        for node in nodes.values():
+            if node['type'] == NodeType.DUT:
+                VPPUtil.start_vpp_service(node)
 
     @staticmethod
     def stop_vpp_service(node):
@@ -53,28 +99,221 @@ class VPPUtil(object):
 
         :param node: VPP node.
         :type node: dict
-        :raises RuntimeError: If VPP fails to stop.
+        :raises RuntimeError: If VPP service fails to stop.
         """
+        DUTSetup.stop_service(node, Constants.VPP_UNIT)
 
-        ssh = SSH()
-        ssh.connect(node)
-        cmd = "service vpp stop"
-        ret_code, _, _ = ssh.exec_command_sudo(cmd, timeout=80)
-        if int(ret_code) != 0:
-            raise RuntimeError("VPP service did not shut down gracefully.")
+    @staticmethod
+    def stop_vpp_service_on_all_duts(nodes):
+        """Stop VPP service on all nodes.
+
+        :param nodes: Nodes in the topology.
+        :type nodes: dict
+        """
+        for node in nodes.values():
+            if node['type'] == NodeType.DUT:
+                VPPUtil.stop_vpp_service(node)
 
     @staticmethod
-    def start_vpp_service(node):
-        """start VPP service on the specified node.
+    def verify_vpp_on_dut(node):
+        """Verify that VPP is installed on DUT node.
 
-        :param node: VPP node.
+        :param node: DUT node.
+        :type node: dict
+        :raises RuntimeError: If failed to restart VPP, get VPP version
+            or get VPP interfaces.
+        """
+        VPPUtil.vpp_show_version_verbose(node)
+        VPPUtil.vpp_show_interfaces(node)
+
+    @staticmethod
+    def verify_vpp_on_all_duts(nodes):
+        """Verify that VPP is installed on all DUT nodes.
+
+        :param nodes: Nodes in the topology.
+        :type nodes: dict
+        """
+        for node in nodes.values():
+            if node['type'] == NodeType.DUT:
+                VPPUtil.start_vpp_service(node)
+                VPPUtil.verify_vpp_on_dut(node)
+
+    @staticmethod
+    def vpp_show_version(node, verbose=False):
+        """Run "show_version" API command.
+
+        :param node: Node to run command on.
+        :param verbose: Show version, compile date and compile location if True
+            otherwise show only version.
+        :type node: dict
+        :type verbose: bool
+        :raises PapiError: If no reply received for show_version API command.
+        """
+        # TODO: move composition of api data to separate method
+        api_data = list()
+        api = dict(api_name='show_version')
+        api_args = dict()
+        api['api_args'] = api_args
+        api_data.append(api)
+
+        api_reply = None
+        with PapiExecutor(node) as papi_executor:
+            papi_executor.execute_papi(api_data)
+            try:
+                papi_executor.papi_should_have_passed()
+            except AssertionError:
+                raise RuntimeError('Failed to get VPP version on host: {host}'.
+                                   format(host=node['host']))
+            api_reply = papi_executor.get_papi_reply()
+
+        if api_reply is not None:
+            version_data = api_reply[0]['api_reply']['show_version_reply']
+            ver = version_data['version'].rstrip('\0x00')
+            if verbose:
+                date = version_data['build_date'].rstrip('\0x00')
+                loc = version_data['build_directory'].rstrip('\0x00')
+                version = \
+                    'VPP Version:        {ver}\n' \
+                    'Compile date:       {date}\n' \
+                    'Compile location:   {loc}\n '\
+                    .format(ver=ver, date=date, loc=loc)
+            else:
+                version = 'VPP version:{ver}'.format(ver=ver)
+            logger.info(version)
+        else:
+            raise PapiError('No reply received for show_version API command on '
+                            'host {host}'.format(host=node['host']))
+
+    @staticmethod
+    def vpp_show_version_verbose(node):
+        """Run "show_version" API command and return verbose string of version
+        data.
+
+        :param node: Node to run command on.
+        :type node: dict
+        """
+        VPPUtil.vpp_show_version(node, verbose=True)
+
+    @staticmethod
+    def show_vpp_version_on_all_duts(nodes):
+        """Show VPP version on all DUTs.
+
+        :param nodes: VPP nodes.
+        :type nodes: dict
+        """
+        for node in nodes.values():
+            if node['type'] == NodeType.DUT:
+                VPPUtil.vpp_show_version_verbose(node)
+
+    @staticmethod
+    def vpp_show_interfaces(node):
+        """Run "show interface" CLI command.
+
+        :param node: Node to run command on.
         :type node: dict
-        :raises RuntimeError: If VPP fails to start.
         """
+        vat = VatExecutor()
+        vat.execute_script("show_interface.vat", node, json_out=False)
 
-        ssh = SSH()
-        ssh.connect(node)
-        cmd = "service vpp start"
-        ret_code, _, _ = ssh.exec_command_sudo(cmd)
-        if int(ret_code) != 0:
-            raise RuntimeError("VPP service did not start.")
+        try:
+            vat.script_should_have_passed()
+        except AssertionError:
+            raise RuntimeError('Failed to get VPP interfaces on host: {name}'.
+                               format(name=node['host']))
+
+    @staticmethod
+    def vpp_show_crypto_device_mapping(node):
+        """Run "show crypto device mapping" CLI command.
+
+        :param node: Node to run command on.
+        :type node: dict
+        """
+        vat = VatExecutor()
+        vat.execute_script("show_crypto_device_mapping.vat", node,
+                           json_out=False)
+
+    @staticmethod
+    def vpp_api_trace_dump(node):
+        """Run "api trace custom-dump" CLI command.
+
+        :param node: Node to run command on.
+        :type node: dict
+        """
+        vat = VatExecutor()
+        vat.execute_script("api_trace_dump.vat", node, json_out=False)
+
+    @staticmethod
+    def vpp_api_trace_save(node):
+        """Run "api trace save" CLI command.
+
+        :param node: Node to run command on.
+        :type node: dict
+        """
+        vat = VatExecutor()
+        vat.execute_script("api_trace_save.vat", node, json_out=False)
+
+    @staticmethod
+    def vpp_enable_traces_on_dut(node):
+        """Enable vpp packet traces on the DUT node.
+
+        :param node: DUT node to set up.
+        :type node: dict
+        """
+        vat = VatExecutor()
+        vat.execute_script("enable_dpdk_traces.vat", node, json_out=False)
+        vat.execute_script("enable_vhost_user_traces.vat", node, json_out=False)
+        vat.execute_script("enable_memif_traces.vat", node, json_out=False)
+
+    @staticmethod
+    def vpp_enable_traces_on_all_duts(nodes):
+        """Enable vpp packet traces on all DUTs in the given topology.
+
+        :param nodes: Nodes in the topology.
+        :type nodes: dict
+        """
+        for node in nodes.values():
+            if node['type'] == NodeType.DUT:
+                VPPUtil.vpp_enable_traces_on_dut(node)
+
+    @staticmethod
+    def vpp_enable_elog_traces_on_dut(node):
+        """Enable API/CLI/Barrier traces on the DUT node.
+
+        :param node: DUT node to set up.
+        :type node: dict
+        """
+        vat = VatExecutor()
+        vat.execute_script("elog_trace_api_cli_barrier.vat", node,
+                           json_out=False)
+
+    @staticmethod
+    def vpp_enable_elog_traces_on_all_duts(nodes):
+        """Enable API/CLI/Barrier traces on all DUTs in the given topology.
+
+        :param nodes: Nodes in the topology.
+        :type nodes: dict
+        """
+        for node in nodes.values():
+            if node['type'] == NodeType.DUT:
+                VPPUtil.vpp_enable_elog_traces_on_dut(node)
+
+    @staticmethod
+    def show_event_logger_on_dut(node):
+        """Show event logger on the DUT node.
+
+        :param node: DUT node to show traces on.
+        :type node: dict
+        """
+        vat = VatExecutor()
+        vat.execute_script("show_event_logger.vat", node, json_out=False)
+
+    @staticmethod
+    def show_event_logger_on_all_duts(nodes):
+        """Show event logger on all DUTs in the given topology.
+
+        :param nodes: Nodes in the topology.
+        :type nodes: dict
+        """
+        for node in nodes.values():
+            if node['type'] == NodeType.DUT:
+                VPPUtil.show_event_logger_on_dut(node)