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os-ken/os_ken/tests/integrated/test_of_config.py

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# Copyright (C) 2013 Nippon Telegraph and Telephone Corporation.
# Copyright (C) 2013 Isaku Yamahata <yamahata at private email ne jp>
#
# 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.
"""
How to run this test
edit linc config file. LINC-Switch/rel/linc/releases/1.0/sys.config
You can find the sample config I used for the test below
For this following config to work, the network interface
linc-port and linc-port2 must be created before hand.
(Or edit the port name depending on your environment)
An easy way is to create them as follows
# ip link add linc-port type veth peer name linc-port-peer
# ip link set linc-port up
# ip link add linc-port2 type veth peer name linc-port-peer2
# ip link set linc-port2 up
Then run linc
# rel/linc/bin/linc console
Then run os_ken
# osken-manager --verbose \
os_ken/tests/integrated/test_of_config.py
Here is my sys.config used for this test.
-->8-->8-->8-->8-->8-->8-->8-->8-->8-->8-->8-->8-->8---
[
{linc,
[
{of_config, enabled},
{logical_switches,
[
{switch, 0,
[
{backend, linc_us4},
{controllers,
[
{"Switch0-DefaultController", "localhost", 6633, tcp}
]},
{ports,
[
{port, 1, [{interface, "linc-port"}]},
{port, 2, [{interface, "linc-port2"}]}
]},
{queues_status, disabled},
{queues,
[
]}
]}
]}
]},
{enetconf,
[
{capabilities, [{base, {1, 1}},
{startup, {1, 0}},
{'writable-running', {1, 0}}]},
{callback_module, linc_ofconfig},
{sshd_ip, any},
{sshd_port, 1830},
{sshd_user_passwords,
[
{"linc", "linc"}
]}
]},
{lager,
[
{handlers,
[
{lager_console_backend, info},
{lager_file_backend,
[
{"log/error.log", error, 10485760, "$D0", 5},
{"log/console.log", info, 10485760, "$D0", 5}
]}
]}
]},
{sasl,
[
{sasl_error_logger, {file, "log/sasl-error.log"}},
{errlog_type, error},
{error_logger_mf_dir, "log/sasl"}, % Log directory
{error_logger_mf_maxbytes, 10485760}, % 10 MB max file size
{error_logger_mf_maxfiles, 5} % 5 files max
]}
].
-->8-->8-->8-->8-->8-->8-->8-->8-->8-->8-->8-->8-->8--
"""
from __future__ import print_function
import traceback
import lxml.etree
import ncclient
from os_ken.base import app_manager
from os_ken.lib.netconf import constants as nc_consts
from os_ken.lib import hub
from os_ken.lib import of_config
from os_ken.lib.of_config import capable_switch
from os_ken.lib.of_config import constants as ofc_consts
# Change those depending on switch configuration
HOST = '127.0.0.1'
PORT = 1830
USERNAME = 'linc'
PASSWORD = 'linc'
CAPABLE_SWITCH_ID = 'CapableSwitch0'
LOGICAL_SWITCH = 'LogicalSwitch0'
PORT_ID = 'LogicalSwitch0-Port2'
CONTROLLER_ID = 'Switch0-DefaultController'
PORT_DICT = {
'capable_switch': CAPABLE_SWITCH_ID,
'port_id': PORT_ID,
'logical_switch': LOGICAL_SWITCH,
'controller_id': CONTROLLER_ID,
'ip': HOST,
}
SWITCH_PORT_DOWN = '''
<nc:config xmlns:nc="urn:ietf:params:xml:ns:netconf:base:1.0">
<capable-switch xmlns="urn:onf:of111:config:yang">
<id>%(capable_switch)s</id>
<resources>
<port>
<resource-id>%(port_id)s</resource-id>
<configuration operation="merge">
<admin-state>down</admin-state>
<no-receive>false</no-receive>
<no-forward>false</no-forward>
<no-packet-in>false</no-packet-in>
</configuration>
</port>
</resources>
</capable-switch>
</nc:config>
''' % PORT_DICT
SWITCH_ADVERTISED = '''
<nc:config xmlns:nc="urn:ietf:params:xml:ns:netconf:base:1.0">
<capable-switch xmlns="urn:onf:of111:config:yang">
<id>%(capable_switch)s</id>
<resources>
<port>
<resource-id>%(port_id)s</resource-id>
<features>
<advertised operation="merge">
<rate>10Mb-FD</rate>
<auto-negotiate>true</auto-negotiate>
<medium>copper</medium>
<pause>unsupported</pause>
</advertised>
</features>
</port>
</resources>
</capable-switch>
</nc:config>
''' % PORT_DICT
SWITCH_CONTROLLER = '''
<nc:config xmlns:nc="urn:ietf:params:xml:ns:netconf:base:1.0">
<capable-switch xmlns="urn:onf:of111:config:yang">
<id>%(capable_switch)s</id>
<logical-switches>
<switch>
<id>%(logical_switch)s</id>
<controllers>
<controller operation="merge">
<id>%(controller_id)s</id>
<role>master</role>
<ip-address>%(ip)s</ip-address>
<port>6633</port>
<protocol>tcp</protocol>
</controller>
</controllers>
</switch>
</logical-switches>
</capable-switch>
</nc:config>
''' % PORT_DICT
def _get_schema():
# file_name = of_config.OF_CONFIG_1_0_XSD
# file_name = of_config.OF_CONFIG_1_1_XSD
file_name = of_config.OF_CONFIG_1_1_1_XSD
return lxml.etree.XMLSchema(file=file_name)
class OFConfigClient(app_manager.OSKenApp):
def __init__(self, *args, **kwargs):
super(OFConfigClient, self).__init__(*args, **kwargs)
self.switch = capable_switch.OFCapableSwitch(
host=HOST, port=PORT, username=USERNAME, password=PASSWORD,
unknown_host_cb=lambda host, fingeprint: True)
hub.spawn(self._do_of_config)
def _validate(self, tree):
xmlschema = _get_schema()
try:
xmlschema.assertValid(tree)
except:
traceback.print_exc()
def _do_get(self):
data_xml = self.switch.raw_get()
tree = lxml.etree.fromstring(data_xml)
# print(lxml.etree.tostring(tree, pretty_print=True))
self._validate(tree)
name_spaces = set()
for e in tree.getiterator():
name_spaces.add(capable_switch.get_ns_tag(e.tag)[0])
print(name_spaces)
return tree
def _do_get_config(self, source):
print('source = %s' % source)
config_xml = self.switch.raw_get_config(source)
tree = lxml.etree.fromstring(config_xml)
# print(lxml.etree.tostring(tree, pretty_print=True))
self._validate(tree)
def _do_edit_config(self, config):
tree = lxml.etree.fromstring(config)
self._validate(tree)
self.switch.raw_edit_config(target='running', config=config)
def _print_ports(self, tree, ns):
for port in tree.findall('{%s}%s/{%s}%s' % (ns, ofc_consts.RESOURCES,
ns, ofc_consts.PORT)):
print(lxml.etree.tostring(port, pretty_print=True))
def _set_ports_down(self):
"""try to set all ports down with etree operation"""
tree = self._do_get()
print(lxml.etree.tostring(tree, pretty_print=True))
qname = lxml.etree.QName(tree.tag)
ns = qname.namespace
self._print_ports(tree, ns)
switch_id = tree.find('{%s}%s' % (ns, ofc_consts.ID))
resources = tree.find('{%s}%s' % (ns, ofc_consts.RESOURCES))
configuration = tree.find(
'{%s}%s/{%s}%s/{%s}%s' % (ns, ofc_consts.RESOURCES,
ns, ofc_consts.PORT,
ns, ofc_consts.CONFIGURATION))
admin_state = tree.find(
'{%s}%s/{%s}%s/{%s}%s/{%s}%s' % (ns, ofc_consts.RESOURCES,
ns, ofc_consts.PORT,
ns, ofc_consts.CONFIGURATION,
ns, ofc_consts.ADMIN_STATE))
config_ = lxml.etree.Element(
'{%s}%s' % (ncclient.xml_.BASE_NS_1_0, nc_consts.CONFIG))
capable_switch_ = lxml.etree.SubElement(config_, tree.tag)
switch_id_ = lxml.etree.SubElement(capable_switch_, switch_id.tag)
switch_id_.text = switch_id.text
resources_ = lxml.etree.SubElement(capable_switch_,
resources.tag)
for port in tree.findall(
'{%s}%s/{%s}%s' % (ns, ofc_consts.RESOURCES,
ns, ofc_consts.PORT)):
resource_id = port.find('{%s}%s' % (ns, ofc_consts.RESOURCE_ID))
port_ = lxml.etree.SubElement(resources_, port.tag)
resource_id_ = lxml.etree.SubElement(port_, resource_id.tag)
resource_id_.text = resource_id.text
configuration_ = lxml.etree.SubElement(port_, configuration.tag)
configuration_.set(ofc_consts.OPERATION, nc_consts.MERGE)
admin_state_ = lxml.etree.SubElement(configuration_,
admin_state.tag)
admin_state_.text = ofc_consts.DOWN
self._do_edit_config(lxml.etree.tostring(config_, pretty_print=True))
tree = self._do_get()
self._print_ports(tree, ns)
def _do_of_config(self):
self._do_get()
self._do_get_config('running')
self._do_get_config('startup')
# LINC doesn't support 'candidate' datastore
try:
self._do_get_config('candidate')
except ncclient.NCClientError:
traceback.print_exc()
# use raw XML format
self._do_edit_config(SWITCH_PORT_DOWN)
self._do_edit_config(SWITCH_ADVERTISED)
self._do_edit_config(SWITCH_CONTROLLER)
self._set_ports_down()
self.switch.close_session()
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