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
|
# 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.
"""Vhost-user interfaces library."""
from resources.libraries.python.VatExecutor import VatExecutor, VatTerminal
from resources.libraries.python.topology import NodeType, Topology
from resources.libraries.python.InterfaceUtil import InterfaceUtil
class VhostUser(object):
"""Vhost-user interfaces"""
@staticmethod
def vpp_create_vhost_user_interface(node, socket):
"""Create Vhost-user interface on VPP node.
:param node: Node to create Vhost-user interface on.
:param socket: Vhost-user interface socket path.
:type node: dict
:type socket: str
:returns: SW interface index.
:rtype: int
:raises RuntimeError: If Vhost-user interface creation failed.
"""
out = VatExecutor.cmd_from_template(node, 'create_vhost_user_if.vat',
sock=socket)
if out[0].get('retval') == 0:
sw_if_idx = int(out[0].get('sw_if_index'))
if_key = Topology.add_new_port(node, 'vhost')
Topology.update_interface_sw_if_index(node, if_key, sw_if_idx)
ifc_name = InterfaceUtil.vpp_get_interface_name(node, sw_if_idx)
Topology.update_interface_name(node, if_key, ifc_name)
ifc_mac = InterfaceUtil.vpp_get_interface_mac(node, sw_if_idx)
Topology.update_interface_mac_address(node, if_key, ifc_mac)
Topology.update_interface_vhost_socket(node, if_key, socket)
return sw_if_idx
else:
raise RuntimeError('Create Vhost-user interface failed on node '
'"{}"'.format(node['host']))
@staticmethod
def get_vhost_user_if_name_by_sock(node, socket):
"""Get Vhost-user interface name by socket.
:param node: Node to get Vhost-user interface name on.
:param socket: Vhost-user interface socket path.
:type node: dict
:type socket: str
:returns: Interface name or None if not found.
:rtype: str
"""
for interface in node['interfaces'].values():
if interface.get('socket') == socket:
return interface.get('name')
return None
@staticmethod
def get_vhost_user_mac_by_sw_index(node, sw_if_index):
"""Get Vhost-user l2_address for the given interface from actual
interface dump.
:param node: VPP node to get interface data from.
:param sw_if_index: Idx of the specific interface.
:type node: dict
:type sw_if_index: str
:returns: l2_address of the given interface.
:rtype: str
"""
with VatTerminal(node) as vat:
if_data = vat.vat_terminal_exec_cmd_from_template(
"interface_dump.vat")
for iface in if_data[0]:
if iface["sw_if_index"] == sw_if_index:
return ':'.join("%02x" % (b) for b in iface["l2_address"][:6])
return None
@staticmethod
def vpp_show_vhost(node):
"""Get vhost-user data for the given node.
:param node: VPP node to get interface data from.
:type node: dict
:returns: nothing
"""
vat = VatExecutor()
vat.execute_script("show_vhost.vat", node, json_out=False)
@staticmethod
def show_vpp_vhost_on_all_duts(nodes):
"""Show Vhost User on all DUTs.
:param nodes: VPP nodes.
:type nodes: dict
"""
for node in nodes.values():
if node['type'] == NodeType.DUT:
VhostUser.vpp_show_vhost(node)
|
