Beispiel #1
0
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)
		}
	}
}
Beispiel #2
0
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)
		}
	}
}
Beispiel #3
0
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)
	}
}
Beispiel #4
0
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)
		}
	}
}