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bridge.go
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/
bridge.go
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package netconf
import (
"fmt"
"github.com/vishvananda/netlink"
)
type Bridge struct {
name string
}
func NewBridge(name string) (*Bridge, error) {
b := &Bridge{name: name}
return b, b.init()
}
func (b *Bridge) init() error {
link, err := netlink.LinkByName(b.name)
if err == nil {
if _, ok := link.(*netlink.Bridge); !ok {
return fmt.Errorf("%s is not a bridge device", b.name)
}
return nil
}
bridge := netlink.Bridge{}
bridge.LinkAttrs.Name = b.name
return netlink.LinkAdd(&bridge)
}
func (b *Bridge) AddLink(link netlink.Link) error {
existing, err := netlink.LinkByName(b.name)
if err != nil {
return err
}
if bridge, ok := existing.(*netlink.Bridge); ok {
if link.Attrs().MasterIndex != bridge.Index {
return netlink.LinkSetMaster(link, bridge)
}
} else {
return fmt.Errorf("%s is not a bridge", b.name)
}
return nil
}