func (of *of12Driver) handlePacketIn(in of12.PacketIn, c *ofConn) error {
m := in.Match()
if m.Type() == uint16(of12.PMT_STANDARD) {
glog.Warningf("standard matches are not supported")
return nil
}
var inPort uint32
hasInPort := false
xm, _ := of12.ToOXMatch(in.Match())
for _, f := range xm.Fields() {
if of12.IsOxmInPort(f) {
xp, _ := of12.ToOxmInPort(f)
inPort = xp.InPort()
hasInPort = true
}
}
if !hasInPort {
glog.V(2).Infof("packet in does not have an input port")
return nil
}
// Ignore packet-ins on switch specific ports.
if inPort > uint32(of12.PP_MAX) {
glog.V(2).Infof("ignoring packet-in on %v", inPort)
return nil
}
port, ok := of.ofPorts[inPort]
if !ok {
return fmt.Errorf("of12Driver: port not found %v", inPort)
}
if glog.V(2) {
glog.Infof("packet received: %v", in)
}
nomIn := nom.PacketIn{
Node: c.node.UID(),
InPort: port.UID(),
BufferID: nom.PacketBufferID(in.BufferId()),
}
nomIn.Packet = nom.Packet(in.Data())
c.ctx.Emit(nomIn)
return nil
}
func (d *of12Driver) nomMatch(m of12.Match) (nom.Match, error) {
nm := nom.Match{}
if !of12.IsOXMatch(m) {
return nm, fmt.Errorf("of12Driver: std math is not supported")
}
xm, err := of12.ToOXMatch(m)
if err != nil {
return nm, err
}
for _, f := range xm.Fields() {
if of12.IsOxmInPort(f) {
xf, err := of12.ToOxmInPort(f)
if err != nil {
return nom.Match{}, err
}
np, ok := d.ofPorts[xf.InPort()]
if !ok {
return nom.Match{}, fmt.Errorf("of12Driver-Match: cannot find port %v",
xf.InPort())
}
nm.AddField(nom.InPort(np.UID()))
}
if of12.IsOxmEthType(f) {
xf, err := of12.ToOxmEthType(f)
if err != nil {
return nom.Match{}, err
}
nm.AddField(nom.EthType(xf.Type()))
}
if of12.IsOxmEthSrc(f) {
xf, err := of12.ToOxmEthSrc(f)
if err != nil {
return nom.Match{}, err
}
nf := nom.EthSrc{}
nf.Addr = xf.MacAddr()
nf.Mask = nom.MaskNoneMAC
nm.AddField(nf)
}
switch f.OxmField() {
case uint8(of12.PXMT_ETH_SRC_MASKED):
xf, err := of12.ToOxmEthSrcMasked(f)
if err != nil {
return nom.Match{}, err
}
nf := nom.EthSrc{}
nf.Addr = xf.MacAddr()
nf.Mask = xf.Mask()
nm.AddField(nf)
case uint8(of12.PXMT_ETH_DST):
xf, err := of12.ToOxmEthDst(f)
if err != nil {
return nom.Match{}, err
}
nf := nom.EthDst{}
nf.Addr = xf.MacAddr()
nf.Mask = nom.MaskNoneMAC
nm.AddField(nf)
case uint8(of12.PXMT_ETH_DST_MASKED):
xf, err := of12.ToOxmEthDstMasked(f)
if err != nil {
return nom.Match{}, err
}
nf := nom.EthDst{}
nf.Addr = xf.MacAddr()
nf.Mask = xf.Mask()
nm.AddField(nf)
case uint8(of12.PXMT_IP_PROTO):
xf, err := of12.ToOxmIpProto(f)
if err != nil {
return nom.Match{}, err
}
nm.AddField(nom.IPProto(xf.Proto()))
case uint8(of12.PXMT_IPV4_SRC):
xf, err := of12.ToOxmIpV4Src(f)
if err != nil {
return nom.Match{}, err
}
nf := nom.IPv4Src{}
nf.Addr = nom.IPv4Addr(xf.Addr())
nf.Mask = nom.MaskNoneIPV4
nm.AddField(nf)
case uint8(of12.PXMT_IPV4_SRC_MASKED):
xf, err := of12.ToOxmIpV4SrcMasked(f)
if err != nil {
return nom.Match{}, err
}
nf := nom.IPv4Src{}
nf.Addr = nom.IPv4Addr(xf.Addr())
nf.Mask = nom.IPv4Addr(xf.Mask())
nm.AddField(nf)
case uint8(of12.PXMT_IPV4_DST):
xf, err := of12.ToOxmIpV4Dst(f)
if err != nil {
return nom.Match{}, err
}
nf := nom.IPv4Dst{}
nf.Addr = nom.IPv4Addr(xf.Addr())
nf.Mask = nom.MaskNoneIPV4
nm.AddField(nf)
case uint8(of12.PXMT_IPV4_DST_MASKED):
xf, err := of12.ToOxmIpV4DstMasked(f)
if err != nil {
return nom.Match{}, err
}
nf := nom.IPv4Dst{}
nf.Addr = nom.IPv4Addr(xf.Addr())
nf.Mask = nom.IPv4Addr(xf.Mask())
nm.AddField(nf)
case uint8(of12.PXMT_IPV6_SRC):
xf, err := of12.ToOxmIpV6Src(f)
if err != nil {
return nom.Match{}, err
}
nf := nom.IPv6Src{}
nf.Addr = nom.IPv6Addr(xf.Addr())
nf.Mask = nom.MaskNoneIPV6
nm.AddField(nf)
case uint8(of12.PXMT_IPV6_SRC_MASKED):
xf, err := of12.ToOxmIpV6SrcMasked(f)
if err != nil {
return nom.Match{}, err
}
nf := nom.IPv6Src{}
nf.Addr = nom.IPv6Addr(xf.Addr())
nf.Mask = nom.IPv6Addr(xf.Mask())
nm.AddField(nf)
case uint8(of12.PXMT_IPV6_DST):
xf, err := of12.ToOxmIpV6Dst(f)
if err != nil {
return nom.Match{}, err
}
nf := nom.IPv6Dst{}
nf.Addr = nom.IPv6Addr(xf.Addr())
nf.Mask = nom.MaskNoneIPV6
nm.AddField(nf)
case uint8(of12.PXMT_IPV6_DST_MASKED):
xf, err := of12.ToOxmIpV6DstMasked(f)
if err != nil {
return nom.Match{}, err
}
nf := nom.IPv6Dst{}
nf.Addr = nom.IPv6Addr(xf.Addr())
nf.Mask = nom.IPv6Addr(xf.Mask())
nm.AddField(nf)
case uint8(of12.PXMT_TCP_SRC):
xf, err := of12.ToOxmTcpSrc(f)
if err != nil {
return nom.Match{}, err
}
nm.AddField(nom.TransportPortSrc(xf.Port()))
case uint8(of12.PXMT_TCP_DST):
xf, err := of12.ToOxmTcpDst(f)
if err != nil {
return nom.Match{}, err
}
nm.AddField(nom.TransportPortDst(xf.Port()))
}
}
return nm, nil
}