forked from ligato/vpp-agent
-
Notifications
You must be signed in to change notification settings - Fork 0
/
netlink_api.go
92 lines (84 loc) · 3.61 KB
/
netlink_api.go
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
// Copyright (c) 2018 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.
package linuxcalls
import (
"net"
"github.com/vishvananda/netlink"
"github.com/vishvananda/netns"
)
// NetlinkAPI interface covers all methods inside linux calls package
// needed to manage linux interfaces.
type NetlinkAPI interface {
NetlinkAPIWrite
NetlinkAPIRead
}
// NetlinkAPIWrite interface covers write methods inside linux calls package
// needed to manage linux interfaces.
type NetlinkAPIWrite interface {
// AddVethInterfacePair configures two connected VETH interfaces
AddVethInterfacePair(ifName, peerIfName string) error
// DeleteInterface removes the given interface.
DeleteInterface(ifName string) error
// SetInterfaceUp sets interface state to 'up'
SetInterfaceUp(ifName string) error
// SetInterfaceDown sets interface state to 'down'
SetInterfaceDown(ifName string) error
// AddInterfaceIP adds new IP address
AddInterfaceIP(ifName string, addr *net.IPNet) error
// DelInterfaceIP removes IP address from linux interface
DelInterfaceIP(ifName string, addr *net.IPNet) error
// SetInterfaceMac sets MAC address
SetInterfaceMac(ifName string, macAddress string) error
// SetInterfaceMTU set maximum transmission unit for interface
SetInterfaceMTU(ifName string, mtu int) error
// RenameInterface changes interface host name
RenameInterface(ifName string, newName string) error
// SetInterfaceAlias sets the alias of the given interface.
// Equivalent to: `ip link set dev $ifName alias $alias`
SetInterfaceAlias(ifName, alias string) error
// SetLinkNamespace puts link into a network namespace.
SetLinkNamespace(link netlink.Link, ns netns.NsHandle) error
// SetChecksumOffloading enables/disables Rx/Tx checksum offloading
// for the given interface.
SetChecksumOffloading(ifName string, rxOn, txOn bool) error
}
// NetlinkAPIRead interface covers read methods inside linux calls package
// needed to manage linux interfaces.
type NetlinkAPIRead interface {
// GetLinkByName returns netlink interface type
GetLinkByName(ifName string) (netlink.Link, error)
// GetLinkList return all links from namespace
GetLinkList() ([]netlink.Link, error)
// LinkSubscribe takes a channel to which notifications will be sent
// when links change. Close the 'done' chan to stop subscription.
LinkSubscribe(ch chan<- netlink.LinkUpdate, done <-chan struct{}) error
// GetAddressList reads all IP addresses
GetAddressList(ifName string) ([]netlink.Addr, error)
// InterfaceExists verifies interface existence
InterfaceExists(ifName string) (bool, error)
// IsInterfaceUp checks if the interface is UP.
IsInterfaceUp(ifName string) (bool, error)
// GetInterfaceType returns linux interface type
GetInterfaceType(ifName string) (string, error)
// GetChecksumOffloading returns the state of Rx/Tx checksum offloading
// for the given interface.
GetChecksumOffloading(ifName string) (rxOn, txOn bool, err error)
}
// NetLinkHandler is accessor for Netlink methods.
type NetLinkHandler struct {
}
// NewNetLinkHandler creates new instance of Netlink handler.
func NewNetLinkHandler() *NetLinkHandler {
return &NetLinkHandler{}
}