1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
|
# Copyright 2015-2016 Intel 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.
"""VSPERF Vanilla OVS implementation
"""
import logging
from conf import settings
from vswitches.vswitch import IVSwitch
from src.ovs import VSwitchd, OFBridge, DPCtl
from tools.module_manager import ModuleManager
from tools import tasks
_LOGGER = logging.getLogger(__name__)
VSWITCHD_CONST_ARGS = ['--', '--log-file']
class OvsVanilla(IVSwitch):
""" Open vSwitch
This is wrapper for functionality implemented in src.ovs.
The method docstrings document only considerations specific to this
implementation. For generic information of the nature of the methods,
see the interface definition.
"""
_logger = logging.getLogger()
_ports = settings.getValue('VSWITCH_VANILLA_PHY_PORT_NAMES')
_current_id = 0
_vport_id = 0
def __init__(self):
#vswitchd_args = VSWITCHD_CONST_ARGS
vswitchd_args = ["unix:%s" % VSwitchd.get_db_sock_path()]
vswitchd_args += settings.getValue('VSWITCHD_VANILLA_ARGS')
self._vswitchd = VSwitchd(vswitchd_args=vswitchd_args,
expected_cmd="db.sock: connected")
self._bridges = {}
self._module_manager = ModuleManager()
def start(self):
"""See IVswitch for general description
Activates kernel modules, ovsdb and vswitchd.
"""
self._module_manager.insert_modules(
settings.getValue('VSWITCH_VANILLA_KERNEL_MODULES'))
self._logger.info("Starting Vswitchd...")
self._vswitchd.start()
self._logger.info("Vswitchd...Started.")
def stop(self):
"""See IVswitch for general description
Kills ovsdb and vswitchd and removes kernel modules.
"""
# remove all tap interfaces
for i in range(self._vport_id):
tapx = 'tap' + str(i)
tasks.run_task(['sudo', 'ip', 'tuntap', 'del',
tapx, 'mode', 'tap'],
_LOGGER, 'Deleting ' + tapx, False)
self._vport_id = 0
self._vswitchd.kill()
dpctl = DPCtl()
dpctl.del_dp()
self._module_manager.remove_modules()
def add_switch(self, switch_name, params=None):
"""See IVswitch for general description
"""
bridge = OFBridge(switch_name)
bridge.create(params)
bridge.set_db_attribute('Open_vSwitch', '.',
'other_config:max-idle', '60000')
self._bridges[switch_name] = bridge
def del_switch(self, switch_name):
"""See IVswitch for general description
"""
bridge = self._bridges[switch_name]
self._bridges.pop(switch_name)
bridge.destroy()
def add_phy_port(self, switch_name):
"""
Method adds port based on configured VSWITCH_VANILLA_PHY_PORT_NAMES
stored in config file.
See IVswitch for general description
"""
if self._current_id == len(self._ports):
self._logger.error("Can't add port! There are only " +
len(self._ports) + " ports " +
"defined in config!")
raise
if not self._ports[self._current_id]:
self._logger.error("VSWITCH_VANILLA_PHY_PORT_NAMES not set")
raise ValueError("Invalid VSWITCH_VANILLA_PHY_PORT_NAMES")
bridge = self._bridges[switch_name]
port_name = self._ports[self._current_id]
params = []
# For PVP only
tasks.run_task(['sudo', 'ifconfig', port_name, '0'],
_LOGGER, 'Remove IP', False)
of_port = bridge.add_port(port_name, params)
self._current_id += 1
return (port_name, of_port)
def add_vport(self, switch_name):
"""
Method adds virtual port into OVS vanilla
See IVswitch for general description
"""
# Create tap devices for the VM
tap_name = 'tap' + str(self._vport_id)
self._vport_id += 1
tasks.run_task(['sudo', 'ip', 'tuntap', 'del',
tap_name, 'mode', 'tap'],
_LOGGER, 'Creating tap device...', False)
tasks.run_task(['sudo', 'ip', 'tuntap', 'add',
tap_name, 'mode', 'tap'],
_LOGGER, 'Creating tap device...', False)
tasks.run_task(['sudo', 'ifconfig', tap_name, '0'],
_LOGGER, 'Bring up ' + tap_name, False)
bridge = self._bridges[switch_name]
of_port = bridge.add_port(tap_name, [])
return (tap_name, of_port)
def add_tunnel_port(self, switch_name, remote_ip, tunnel_type='vxlan',
params=None):
"""Creates tunneling port
"""
bridge = self._bridges[switch_name]
pcount = str(self._get_port_count('type=' + tunnel_type))
port_name = tunnel_type + pcount
local_params = ['--', 'set', 'Interface', port_name,
'type=' + tunnel_type,
'options:remote_ip=' + remote_ip]
if params is not None:
local_params = local_params + params
of_port = bridge.add_port(port_name, local_params)
return (port_name, of_port)
def get_ports(self, switch_name):
"""See IVswitch for general description
"""
bridge = self._bridges[switch_name]
ports = list(bridge.get_ports().items())
return [(name, of_port) for (name, (of_port, _)) in ports]
def del_port(self, switch_name, port_name):
"""See IVswitch for general description
"""
bridge = self._bridges[switch_name]
bridge.del_port(port_name)
def add_flow(self, switch_name, flow, cache='off'):
"""See IVswitch for general description
"""
bridge = self._bridges[switch_name]
bridge.add_flow(flow, cache=cache)
def del_flow(self, switch_name, flow=None):
"""See IVswitch for general description
"""
flow = flow or {}
bridge = self._bridges[switch_name]
bridge.del_flow(flow)
def dump_flows(self, switch_name):
"""See IVswitch for general description
"""
bridge = self._bridges[switch_name]
bridge.dump_flows()
def add_route(self, switch_name, network, destination):
"""See IVswitch for general description
"""
bridge = self._bridges[switch_name]
bridge.add_route(network, destination)
def set_tunnel_arp(self, ip_addr, mac_addr, switch_name):
"""See IVswitch for general description
"""
bridge = self._bridges[switch_name]
bridge.set_tunnel_arp(ip_addr, mac_addr, switch_name)
def _get_port_count(self, param):
"""Returns the number of ports having a certain parameter
:param bridge: The src.ovs.ofctl.OFBridge on which to operate
:param param: The parameter to search for
:returns: Count of matches
"""
cnt = 0
for k in self._bridges:
pparams = [c for (_, (_, c)) in list(self._bridges[k].get_ports().items())]
phits = [i for i in pparams if param in i]
cnt += len(phits)
if cnt is None:
cnt = 0
return cnt
|
