Finish porting to ONF infrastructure
- change of imports
- Adding vendor folder
- licensing
Change-Id: If2e7ed27d603668b848ae58c135e94a8db13a9e2
diff --git a/vendor/github.com/google/gopacket/layers/prism.go b/vendor/github.com/google/gopacket/layers/prism.go
new file mode 100644
index 0000000..e1711e7
--- /dev/null
+++ b/vendor/github.com/google/gopacket/layers/prism.go
@@ -0,0 +1,146 @@
+// Copyright 2015 Google, Inc. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style license
+// that can be found in the LICENSE file in the root of the source
+// tree.
+
+// http://www.tcpdump.org/linktypes/LINKTYPE_IEEE802_11_PRISM.html
+
+package layers
+
+import (
+ "encoding/binary"
+ "errors"
+
+ "github.com/google/gopacket"
+)
+
+func decodePrismValue(data []byte, pv *PrismValue) {
+ pv.DID = PrismDID(binary.LittleEndian.Uint32(data[0:4]))
+ pv.Status = binary.LittleEndian.Uint16(data[4:6])
+ pv.Length = binary.LittleEndian.Uint16(data[6:8])
+ pv.Data = data[8 : 8+pv.Length]
+}
+
+type PrismDID uint32
+
+const (
+ PrismDIDType1HostTime PrismDID = 0x10044
+ PrismDIDType2HostTime PrismDID = 0x01041
+ PrismDIDType1MACTime PrismDID = 0x20044
+ PrismDIDType2MACTime PrismDID = 0x02041
+ PrismDIDType1Channel PrismDID = 0x30044
+ PrismDIDType2Channel PrismDID = 0x03041
+ PrismDIDType1RSSI PrismDID = 0x40044
+ PrismDIDType2RSSI PrismDID = 0x04041
+ PrismDIDType1SignalQuality PrismDID = 0x50044
+ PrismDIDType2SignalQuality PrismDID = 0x05041
+ PrismDIDType1Signal PrismDID = 0x60044
+ PrismDIDType2Signal PrismDID = 0x06041
+ PrismDIDType1Noise PrismDID = 0x70044
+ PrismDIDType2Noise PrismDID = 0x07041
+ PrismDIDType1Rate PrismDID = 0x80044
+ PrismDIDType2Rate PrismDID = 0x08041
+ PrismDIDType1TransmittedFrameIndicator PrismDID = 0x90044
+ PrismDIDType2TransmittedFrameIndicator PrismDID = 0x09041
+ PrismDIDType1FrameLength PrismDID = 0xA0044
+ PrismDIDType2FrameLength PrismDID = 0x0A041
+)
+
+const (
+ PrismType1MessageCode uint16 = 0x00000044
+ PrismType2MessageCode uint16 = 0x00000041
+)
+
+func (p PrismDID) String() string {
+ dids := map[PrismDID]string{
+ PrismDIDType1HostTime: "Host Time",
+ PrismDIDType2HostTime: "Host Time",
+ PrismDIDType1MACTime: "MAC Time",
+ PrismDIDType2MACTime: "MAC Time",
+ PrismDIDType1Channel: "Channel",
+ PrismDIDType2Channel: "Channel",
+ PrismDIDType1RSSI: "RSSI",
+ PrismDIDType2RSSI: "RSSI",
+ PrismDIDType1SignalQuality: "Signal Quality",
+ PrismDIDType2SignalQuality: "Signal Quality",
+ PrismDIDType1Signal: "Signal",
+ PrismDIDType2Signal: "Signal",
+ PrismDIDType1Noise: "Noise",
+ PrismDIDType2Noise: "Noise",
+ PrismDIDType1Rate: "Rate",
+ PrismDIDType2Rate: "Rate",
+ PrismDIDType1TransmittedFrameIndicator: "Transmitted Frame Indicator",
+ PrismDIDType2TransmittedFrameIndicator: "Transmitted Frame Indicator",
+ PrismDIDType1FrameLength: "Frame Length",
+ PrismDIDType2FrameLength: "Frame Length",
+ }
+
+ if str, ok := dids[p]; ok {
+ return str
+ }
+
+ return "Unknown DID"
+}
+
+type PrismValue struct {
+ DID PrismDID
+ Status uint16
+ Length uint16
+ Data []byte
+}
+
+func (pv *PrismValue) IsSupplied() bool {
+ return pv.Status == 1
+}
+
+var ErrPrismExpectedMoreData = errors.New("Expected more data.")
+var ErrPrismInvalidCode = errors.New("Invalid header code.")
+
+func decodePrismHeader(data []byte, p gopacket.PacketBuilder) error {
+ d := &PrismHeader{}
+ return decodingLayerDecoder(d, data, p)
+}
+
+type PrismHeader struct {
+ BaseLayer
+ Code uint16
+ Length uint16
+ DeviceName string
+ Values []PrismValue
+}
+
+func (m *PrismHeader) LayerType() gopacket.LayerType { return LayerTypePrismHeader }
+
+func (m *PrismHeader) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error {
+ m.Code = binary.LittleEndian.Uint16(data[0:4])
+ m.Length = binary.LittleEndian.Uint16(data[4:8])
+ m.DeviceName = string(data[8:24])
+ m.BaseLayer = BaseLayer{Contents: data[:m.Length], Payload: data[m.Length:len(data)]}
+
+ switch m.Code {
+ case PrismType1MessageCode:
+ fallthrough
+ case PrismType2MessageCode:
+ // valid message code
+ default:
+ return ErrPrismInvalidCode
+ }
+
+ offset := uint16(24)
+
+ m.Values = make([]PrismValue, (m.Length-offset)/12)
+ for i := 0; i < len(m.Values); i++ {
+ decodePrismValue(data[offset:offset+12], &m.Values[i])
+ offset += 12
+ }
+
+ if offset != m.Length {
+ return ErrPrismExpectedMoreData
+ }
+
+ return nil
+}
+
+func (m *PrismHeader) CanDecode() gopacket.LayerClass { return LayerTypePrismHeader }
+func (m *PrismHeader) NextLayerType() gopacket.LayerType { return LayerTypeDot11 }