func main() { nlmsg, err := netlink.NewMessage(rtnetlink.RTM_GETADDR, netlink.NLM_F_DUMP|netlink.NLM_F_REQUEST, &addr.Header{}, 4) if err != nil { log.Exitf("Couldn't construct message: %v", err) } log.Printf("Dialing: %v", nlmsg) nlsock, err := netlink.Dial(netlink.NETLINK_ROUTE) if err != nil { log.Exitf("Couldn't dial netlink: %v", err) } h := netlink.NewHandler(nlsock) ec := make(chan os.Error) go logec(ec) go h.Start(ec) log.Printf("Sending query: %v", nlmsg) c, err := h.Query(*nlmsg, 1, 4) log.Printf("Sent query: %v", nlmsg.Header) if err != nil { log.Exitf("Couldn't write netlink: %v", err) } for i := range c { if i.Header.MessageType() == netlink.NLMSG_DONE { break } switch i.Header.MessageType() { case rtnetlink.RTM_NEWADDR: hdr := &addr.Header{} msg := rtnetlink.NewMessage(hdr, nil) err = msg.UnmarshalNetlink(i.Body, 4) if err == nil { log.Printf("Family: %v; Length: %d; Flags: %v; Scope: %v; IFIndex: %d", hdr.AddressFamily(), hdr.PrefixLength(), hdr.Flags(), hdr.Scope(), hdr.InterfaceIndex()) for i := range msg.Attributes { log.Printf("Attribute[%d] = %v", i, msg.Attributes[i]) } } else { log.Printf("Unmarshal error: %v", err) } default: log.Printf("Unknown type: %v", i) } if err != nil { log.Printf("Handler error: %v", err) } } }
func main() { rtmsg := route.NewHeader(0, 0, 0, 0, 0, 0, 0, 0, 0) nlmsg, err := netlink.NewMessage(rtnetlink.RTM_GETROUTE, netlink.NLM_F_DUMP|netlink.NLM_F_REQUEST, rtmsg, 2) if err != nil { log.Fatalf("Couldn't construct message: %v", err) } nlsock, err := netlink.Dial(netlink.NETLINK_ROUTE) if err != nil { log.Fatalf("Couldn't dial netlink: %v", err) } h := netlink.NewHandler(nlsock) ec := make(chan error) go h.Start(ec) c, err := h.Query(*nlmsg, 1, 4) if err != nil { log.Fatalf("Couldn't write netlink: %v", err) } for i := range c { if i.Header.MessageType() == netlink.NLMSG_DONE { break } switch i.Header.MessageType() { case rtnetlink.RTM_NEWROUTE: hdr := &route.Header{} msg := rtnetlink.NewMessage(hdr, nil) err = msg.UnmarshalNetlink(i.Body, 4) if err == nil { log.Printf("Route: %v (%d/%d) TOS: %d; (Table: %v; Origin: %v; Scope: %v; Type: %v; Flags: %v", hdr.AddressFamily(), hdr.AddressDestLength(), hdr.AddressSourceLength(), hdr.TOS(), hdr.RoutingTable(), hdr.RouteOrigin(), hdr.AddressScope(), hdr.RouteType(), hdr.Flags()) for i := range msg.Attributes { log.Printf("Attribute[%d]: %v", i, msg.Attributes[i]) } } else { log.Printf("Unmarshal error: %v", err) } default: log.Printf("Unknown type: %v", i) } } }
func main() { flag.Parse() nlsock, err := netlink.Dial(netlink.NETLINK_ROUTE) if err != nil { log.Exitf("Couldn't dial netlink: %v", err) } h := netlink.NewHandler(nlsock) ec := make(chan os.Error) go func() { for e := range ec { log.Printf("Netlink error: %v", e) } }() go h.Start(ec) lf := rtmanip.NewLinkFinder(h) l, err := lf.GetLinkByName(*ifName) if err == nil { if *doDown { err = l.SetLinkState(^link.IFF_UP, link.IFF_UP) if err != nil { log.Printf("Couldn't turn down interface: %v", err) } l.Refresh() } if *doUp { err = l.SetLinkState(link.IFF_UP, link.IFF_UP) if err != nil { log.Printf("Couldn't turn up interface: %v", err) } l.Refresh() } log.Printf("Link Index: %d", l.LinkIndex()) log.Printf("Link Name: %s", l.LinkName()) log.Printf("Link Flags: %s", l.LinkFlags()) log.Printf("Link MTU: %d", l.LinkMTU()) log.Printf("Link (l2) Address: %x", l.LinkAddress()) log.Printf("Link (l2) Broadcast: %x", l.LinkBroadcastAddress()) } else { log.Exitf("Couldn't get link: %v", err) } }
func main() { nlmsg, err := netlink.NewMessage(rtnetlink.RTM_GETLINK, netlink.NLM_F_DUMP|netlink.NLM_F_REQUEST, &link.Header{}, 4) if err != nil { log.Exitf("Couldn't construct message: %v", err) } nlsock, err := netlink.Dial(netlink.NETLINK_ROUTE) if err != nil { log.Exitf("Couldn't dial netlink: %v", err) } h := netlink.NewHandler(nlsock) ec := make(chan os.Error) go h.Start(ec) c, err := h.Query(*nlmsg, 1, 4) if err != nil { log.Exitf("Couldn't write netlink: %v", err) } for i := range c { if i.Header.MessageType() == netlink.NLMSG_DONE { break } switch i.Header.MessageType() { case rtnetlink.RTM_NEWLINK: hdr := &link.Header{} msg := rtnetlink.NewMessage(hdr, nil) err = msg.UnmarshalNetlink(i.Body, 4) if err == nil { log.Printf("Link[%d] (Family: %v; Type: %v; Flags: %v; Changes: %v)", hdr.InterfaceIndex(), hdr.InterfaceFamily(), hdr.InterfaceType(), hdr.Flags(), hdr.InterfaceChanges()) for i := range msg.Attributes { log.Printf("Attribute[%d]: %v", i, msg.Attributes[i]) } } else { log.Printf("Unmarshal error: %v", err) } default: log.Printf("Unknown type: %v", i) } } }