--- /dev/null
+# Copyright 2016 Red Hat Corporation.
+#
+# 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.
+
+
+"""
+Network namespace emulation
+"""
+
+import logging
+import os
+
+from tools import tasks
+
+_LOGGER = logging.getLogger(__name__)
+
+
+def add_ip_to_namespace_eth(port, name, ip_addr, cidr):
+ """
+ Assign port ip address in namespace
+ :param port: port to assign ip to
+ :param name: namespace where port resides
+ :param ip_addr: ip address in dot notation format
+ :param cidr: cidr as string
+ :return:
+ """
+ ip_string = '{}/{}'.format(ip_addr, cidr)
+ tasks.run_task(['sudo', 'ip', 'netns', 'exec', name,
+ 'ip', 'addr', 'add', ip_string, 'dev', port],
+ _LOGGER, 'Assigning ip to port {}...'.format(port), False)
+
+
+def assign_port_to_namespace(port, name, port_up=False):
+ """
+ Assign NIC port to namespace
+ :param port: port name as string
+ :param name: namespace name as string
+ :param port_up: Boolean if the port should be brought up on assignment
+ :return: None
+ """
+ tasks.run_task(['sudo', 'ip', 'link', 'set',
+ 'netns', name, 'dev', port],
+ _LOGGER, 'Assigning port {} to namespace {}...'.format(
+ port, name), False)
+ if port_up:
+ tasks.run_task(['sudo', 'ip', 'netns', 'exec', name,
+ 'ip', 'link', 'set', port, 'up'],
+ _LOGGER, 'Bringing up port {}...'.format(port), False)
+
+
+def create_namespace(name):
+ """
+ Create a linux namespace. Raises RuntimeError if namespace already exists
+ in the system.
+ :param name: name of the namespace to be created as string
+ :return: None
+ """
+ if name in get_system_namespace_list():
+ raise RuntimeError('Namespace already exists in system')
+
+ # touch some files in a tmp area so we can track them separately from
+ # the OS's internal namespace tracking. This allows us to track VSPerf
+ # created namespaces so they can be cleaned up if needed.
+ if not os.path.isdir('/tmp/namespaces'):
+ try:
+ os.mkdir('/tmp/namespaces')
+ except os.error:
+ # OK don't crash, but cleanup may be an issue...
+ _LOGGER.error('Unable to create namespace temp folder.')
+ _LOGGER.error(
+ 'Namespaces will not be removed on test case completion')
+ if os.path.isdir('/tmp/namespaces'):
+ with open('/tmp/namespaces/{}'.format(name), 'a'):
+ os.utime('/tmp/namespaces/{}'.format(name), None)
+
+ tasks.run_task(['sudo', 'ip', 'netns', 'add', name], _LOGGER,
+ 'Creating namespace {}...'.format(name), False)
+ tasks.run_task(['sudo', 'ip', 'netns', 'exec', name,
+ 'ip', 'link', 'set', 'lo', 'up'], _LOGGER,
+ 'Enabling loopback interface...', False)
+
+
+def delete_namespace(name):
+ """
+ Delete linux network namespace
+ :param name: namespace to delete
+ :return: None
+ """
+ # delete the file if it exists in the temp area
+ if os.path.exists('/tmp/namespaces/{}'.format(name)):
+ os.remove('/tmp/namespaces/{}'.format(name))
+ tasks.run_task(['sudo', 'ip', 'netns', 'delete', name], _LOGGER,
+ 'Deleting namespace {}...'.format(name), False)
+
+
+def get_system_namespace_list():
+ """
+ Return tuple of strings for namespaces on the system
+ :return: tuple of namespaces as string
+ """
+ return tuple(os.listdir('/var/run/netns'))
+
+
+def get_vsperf_namespace_list():
+ """
+ Return a tuple of strings for namespaces created by vsperf testcase
+ :return: tuple of namespaces as string
+ """
+ if os.path.isdir('/tmp/namespaces'):
+ return tuple(os.listdir('/tmp/namespaces'))
+ else:
+ return []
+
+
+def reset_port_to_root(port, name):
+ """
+ Return the assigned port to the root namespace
+ :param port: port to return as string
+ :param name: namespace the port currently resides
+ :return: None
+ """
+ tasks.run_task(['sudo', 'ip', 'netns', 'exec', name,
+ 'ip', 'link', 'set', port, 'netns', '1'],
+ _LOGGER, 'Assigning port {} to namespace {}...'.format(
+ port, name), False)
+
+
+# pylint: disable=unused-argument
+# pylint: disable=invalid-name
+def validate_add_ip_to_namespace_eth(result, port, name, ip_addr, cidr):
+ """
+ Validation function for integration testcases
+ """
+ ip_string = '{}/{}'.format(ip_addr, cidr)
+ return ip_string in ''.join(tasks.run_task(
+ ['sudo', 'ip', 'netns', 'exec', name, 'ip', 'addr', 'show', port],
+ _LOGGER, 'Validating ip address in namespace...', False))
+
+
+def validate_assign_port_to_namespace(result, port, name, port_up=False):
+ """
+ Validation function for integration testcases
+ """
+ # this could be improved...its not 100% accurate
+ return port in ''.join(tasks.run_task(
+ ['sudo', 'ip', 'netns', 'exec', name, 'ip', 'addr'],
+ _LOGGER, 'Validating port in namespace...'))
+
+
+def validate_create_namespace(result, name):
+ """
+ Validation function for integration testcases
+ """
+ return name in get_system_namespace_list()
+
+
+def validate_delete_namespace(result, name):
+ """
+ Validation function for integration testcases
+ """
+ return name not in get_system_namespace_list()
+
+
+def validate_reset_port_to_root(result, port, name):
+ """
+ Validation function for integration testcases
+ """
+ return not validate_assign_port_to_namespace(result, port, name)
--- /dev/null
+# Copyright 2016 Red Hat Corporation.
+#
+# 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.
+
+"""
+veth port emulation
+"""
+
+import logging
+import os
+
+from tools import tasks
+
+_LOGGER = logging.getLogger(__name__)
+
+
+def add_veth_port(port, peer_port):
+ """
+ Add a veth port
+ :param port:port name for the first port
+ :param peer_port: port name for the peer port
+ :return: None
+ """
+ # touch some files in a tmp area so we can track them. This allows us to
+ # track VSPerf created veth ports so they can be cleaned up if needed.
+ if not os.path.isdir('/tmp/veth'):
+ try:
+ os.mkdir('/tmp/veth')
+ except os.error:
+ # OK don't crash but cleanup may be an issue
+ _LOGGER.error('Unable to create veth temp folder.')
+ _LOGGER.error(
+ 'Veth ports may not be removed on testcase completion')
+ if os.path.isdir('/tmp/veth'):
+ with open('/tmp/veth/{}-{}'.format(port, peer_port), 'a'):
+ os.utime('/tmp/veth/{}-{}'.format(port, peer_port), None)
+ tasks.run_task(['sudo', 'ip', 'link', 'add',
+ port, 'type', 'veth', 'peer', 'name', peer_port],
+ _LOGGER, 'Adding veth port {} with peer port {}...'.format(
+ port, peer_port), False)
+
+
+def bring_up_eth_port(eth_port, namespace=None):
+ """
+ Bring up an eth port
+ :param eth_port: string of eth port to bring up
+ :param namespace: Namespace eth port it located if needed
+ :return: None
+ """
+ if namespace:
+ tasks.run_task(['sudo', 'ip', 'netns', 'exec', namespace,
+ 'ip', 'link', 'set', eth_port, 'up'],
+ _LOGGER,
+ 'Bringing up port {} in namespace {}...'.format(
+ eth_port, namespace), False)
+ else:
+ tasks.run_task(['sudo', 'ip', 'link', 'set', eth_port, 'up'],
+ _LOGGER, 'Bringing up port...', False)
+
+
+def del_veth_port(port, peer_port):
+ """
+ Delete the veth ports, the peer will automatically be deleted on deletion
+ of the first port param
+ :param port: port name to delete
+ :param port: peer port name
+ :return: None
+ """
+ # delete the file if it exists in the temp area
+ if os.path.exists('/tmp/veth/{}-{}'.format(port, peer_port)):
+ os.remove('/tmp/veth/{}-{}'.format(port, peer_port))
+ tasks.run_task(['sudo', 'ip', 'link', 'del', port],
+ _LOGGER, 'Deleting veth port {} with peer {}...'.format(
+ port, peer_port), False)
+
+
+# pylint: disable=unused-argument
+def validate_add_veth_port(result, port, peer_port):
+ """
+ Validation function for integration testcases
+ """
+ devs = os.listdir('/sys/class/net')
+ return all([port in devs, peer_port in devs])
+
+
+def validate_bring_up_eth_port(result, eth_port, namespace=None):
+ """
+ Validation function for integration testcases
+ """
+ command = list()
+ if namespace:
+ command += ['ip', 'netns', 'exec', namespace]
+ command += ['cat', '/sys/class/net/{}/operstate'.format(eth_port)]
+ out = tasks.run_task(command, _LOGGER, 'Validating port up...', False)
+
+ # since different types of ports may report different status the best way
+ # we can do this for now is to just make sure it doesn't say down
+ if 'down' in out:
+ return False
+ return True
+
+
+def validate_del_veth_port(result, port, peer_port):
+ """
+ Validation function for integration testcases
+ """
+ devs = os.listdir('/sys/class/net')
+ return not any([port in devs, peer_port in devs])
Code Review / vswitchperf.git / commitdiff