mirror of
https://github.com/tinygo-org/drivers.git
synced 2026-08-06 07:53:41 +00:00
Scott Feldman
1fd8a768ae
This adds three new L2 (intermediate) drivers for bridge/bond/vlan.
Theses drivers are incomplete but illustrate how to stack L2 drivers.
Here are some examples of how these driver would stack with the cy243439
driver:
Bridge: bridge two cyw43 devices together, connecting the two LANs:
cyw43_0 := cyw43439.NewDevice(...)
cyw43_1 := cyw43439.NewDevice(...)
bridge := NewBridge([]netlink.Netlinker{cyw43_0, cyw43_1})
stack := tcpip.NewStack(bridge)
netdev.UseNetdev(stack)
Bond: bond two cyw43 devices together, creating one logical device.
The first physical device is primary, the second is backup (fail-over)
device:
cyw43_0 := cyw43439.NewDevice(...) // primary
cyw43_1 := cyw43439.NewDevice(...) // secondary (backup)
bond := NewBond([]netlink.Netlinker{cyw43_0, cyw43_1})
stack := tcpip.NewStack(bond)
netdev.UseNetdev(stack)
Vlan: add tagged VLAN ID=100 to cyw43:
cyw43 := cyw43439.NewDevice(...)
vlan100 := NewVlan(100, cyw43)
stack := tcpip.NewStack(vlan100)
netdev.UseNetdev(stack)
42 lines
681 B
Go
42 lines
681 B
Go
package netlink
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import (
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"net"
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)
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// Vlan is a virtual LAN
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type Vlan struct {
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ip net.IP
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// Vlan ID
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id uint16
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link Netlinker
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recvEth func([]byte) error
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}
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func NewVlan(id uint16, link Netlinker) *Vlan {
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return &Vlan{id: id, link: link}
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}
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func (v *Vlan) NetConnect(params *ConnectParams) error {
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return nil
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}
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func (v *Vlan) NetDisconnect() {
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}
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func (v *Vlan) NetNotify(cb func(Event)) {
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}
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func (v *Vlan) GetHardwareAddr() (net.HardwareAddr, error) {
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return net.HardwareAddr{}, nil
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}
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func (v *Vlan) SendEth(pkt []byte) error {
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// Prepend VLAN hdr to pkt and send on link
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return nil
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}
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func (v *Vlan) RecvEthFunc(cb func(pkt []byte) error) {
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v.recvEth = cb
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}
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