mirror of
https://github.com/vishvananda/netlink
synced 2024-12-24 07:32:36 +00:00
72a1f403a3
It looks little awkward, but should be enough for people who care about defaults from kernel. Fix #26 Also fixed bug with setting TxQLen for main device. It was never set before. Signed-off-by: Alexander Morozov <lk4d4@docker.com>
201 lines
3.6 KiB
Go
201 lines
3.6 KiB
Go
package netlink
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import "net"
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// Link represents a link device from netlink. Shared link attributes
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// like name may be retrieved using the Attrs() method. Unique data
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// can be retrieved by casting the object to the proper type.
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type Link interface {
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Attrs() *LinkAttrs
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Type() string
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}
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type (
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NsPid int
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NsFd int
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)
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// LinkAttrs represents data shared by most link types
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type LinkAttrs struct {
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Index int
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MTU int
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TxQLen int // Transmit Queue Length
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Name string
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HardwareAddr net.HardwareAddr
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Flags net.Flags
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ParentIndex int // index of the parent link device
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MasterIndex int // must be the index of a bridge
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Namespace interface{} // nil | NsPid | NsFd
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}
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// NewLinkAttrs returns LinkAttrs structure filled with default values
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func NewLinkAttrs() LinkAttrs {
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return LinkAttrs{
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TxQLen: -1,
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}
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}
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// Device links cannot be created via netlink. These links
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// are links created by udev like 'lo' and 'etho0'
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type Device struct {
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LinkAttrs
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}
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func (device *Device) Attrs() *LinkAttrs {
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return &device.LinkAttrs
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}
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func (device *Device) Type() string {
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return "device"
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}
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// Dummy links are dummy ethernet devices
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type Dummy struct {
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LinkAttrs
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}
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func (dummy *Dummy) Attrs() *LinkAttrs {
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return &dummy.LinkAttrs
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}
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func (dummy *Dummy) Type() string {
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return "dummy"
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}
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// Bridge links are simple linux bridges
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type Bridge struct {
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LinkAttrs
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}
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func (bridge *Bridge) Attrs() *LinkAttrs {
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return &bridge.LinkAttrs
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}
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func (bridge *Bridge) Type() string {
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return "bridge"
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}
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// Vlan links have ParentIndex set in their Attrs()
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type Vlan struct {
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LinkAttrs
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VlanId int
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}
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func (vlan *Vlan) Attrs() *LinkAttrs {
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return &vlan.LinkAttrs
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}
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func (vlan *Vlan) Type() string {
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return "vlan"
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}
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type MacvlanMode uint16
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const (
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MACVLAN_MODE_DEFAULT MacvlanMode = iota
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MACVLAN_MODE_PRIVATE
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MACVLAN_MODE_VEPA
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MACVLAN_MODE_BRIDGE
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MACVLAN_MODE_PASSTHRU
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MACVLAN_MODE_SOURCE
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)
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// Macvlan links have ParentIndex set in their Attrs()
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type Macvlan struct {
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LinkAttrs
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Mode MacvlanMode
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}
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func (macvlan *Macvlan) Attrs() *LinkAttrs {
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return &macvlan.LinkAttrs
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}
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func (macvlan *Macvlan) Type() string {
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return "macvlan"
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}
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// Veth devices must specify PeerName on create
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type Veth struct {
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LinkAttrs
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PeerName string // veth on create only
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}
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func (veth *Veth) Attrs() *LinkAttrs {
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return &veth.LinkAttrs
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}
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func (veth *Veth) Type() string {
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return "veth"
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}
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// Generic links represent types that are not currently understood
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// by this netlink library.
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type Generic struct {
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LinkAttrs
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LinkType string
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}
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func (generic *Generic) Attrs() *LinkAttrs {
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return &generic.LinkAttrs
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}
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func (generic *Generic) Type() string {
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return generic.LinkType
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}
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type Vxlan struct {
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LinkAttrs
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VxlanId int
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VtepDevIndex int
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SrcAddr net.IP
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Group net.IP
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TTL int
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TOS int
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Learning bool
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Proxy bool
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RSC bool
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L2miss bool
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L3miss bool
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NoAge bool
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Age int
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Limit int
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Port int
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PortLow int
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PortHigh int
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}
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func (vxlan *Vxlan) Attrs() *LinkAttrs {
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return &vxlan.LinkAttrs
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}
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func (vxlan *Vxlan) Type() string {
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return "vxlan"
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}
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type IPVlanMode uint16
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const (
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IPVLAN_MODE_L2 IPVlanMode = iota
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IPVLAN_MODE_L3
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IPVLAN_MODE_MAX
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)
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type IPVlan struct {
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LinkAttrs
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Mode IPVlanMode
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}
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func (ipvlan *IPVlan) Attrs() *LinkAttrs {
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return &ipvlan.LinkAttrs
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}
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func (ipvlan *IPVlan) Type() string {
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return "ipvlan"
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}
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// iproute2 supported devices;
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// vlan | veth | vcan | dummy | ifb | macvlan | macvtap |
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// bridge | bond | ipoib | ip6tnl | ipip | sit | vxlan |
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// gre | gretap | ip6gre | ip6gretap | vti | nlmon |
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// bond_slave | ipvlan
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