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package rtnetlink_test
import (
"log"
"net"
"github.com/jsimonetti/rtnetlink/v2"
)
// Set the operational state an interface to Down
func Example_setLinkDown() {
// Gather the interface Index
iface, _ := net.InterfaceByName("dummy0")
// Dial a connection to the rtnetlink socket
conn, err := rtnetlink.Dial(nil)
if err != nil {
log.Fatal(err)
}
defer conn.Close()
// Request the details of the interface
msg, err := conn.Link.Get(uint32(iface.Index))
if err != nil {
log.Fatal(err)
}
state := msg.Attributes.OperationalState
// If the link is already down, return immediately
if state == rtnetlink.OperStateDown {
return
}
// Set the interface operationally Down
err = conn.Link.Set(&rtnetlink.LinkMessage{
Family: 0x0,
Type: msg.Type,
Index: uint32(iface.Index),
Flags: 0x0,
Change: 0x1,
})
log.Fatal(err)
}
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