First Commit of Voltha-Go-Controller from Radisys
Change-Id: I8e2e908e7ab09a4fe3d86849da18b6d69dcf4ab0
diff --git a/vendor/github.com/google/gopacket/layers/pflog.go b/vendor/github.com/google/gopacket/layers/pflog.go
new file mode 100644
index 0000000..9dbbd90
--- /dev/null
+++ b/vendor/github.com/google/gopacket/layers/pflog.go
@@ -0,0 +1,84 @@
+// Copyright 2012 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.
+
+package layers
+
+import (
+ "encoding/binary"
+ "errors"
+ "fmt"
+
+ "github.com/google/gopacket"
+)
+
+type PFDirection uint8
+
+const (
+ PFDirectionInOut PFDirection = 0
+ PFDirectionIn PFDirection = 1
+ PFDirectionOut PFDirection = 2
+)
+
+// PFLog provides the layer for 'pf' packet-filter logging, as described at
+// http://www.freebsd.org/cgi/man.cgi?query=pflog&sektion=4
+type PFLog struct {
+ BaseLayer
+ Length uint8
+ Family ProtocolFamily
+ Action, Reason uint8
+ IFName, Ruleset []byte
+ RuleNum, SubruleNum uint32
+ UID uint32
+ PID int32
+ RuleUID uint32
+ RulePID int32
+ Direction PFDirection
+ // The remainder is padding
+}
+
+func (pf *PFLog) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error {
+ if len(data) < 60 {
+ df.SetTruncated()
+ return errors.New("PFLog data less than 60 bytes")
+ }
+ pf.Length = data[0]
+ pf.Family = ProtocolFamily(data[1])
+ pf.Action = data[2]
+ pf.Reason = data[3]
+ pf.IFName = data[4:20]
+ pf.Ruleset = data[20:36]
+ pf.RuleNum = binary.BigEndian.Uint32(data[36:40])
+ pf.SubruleNum = binary.BigEndian.Uint32(data[40:44])
+ pf.UID = binary.BigEndian.Uint32(data[44:48])
+ pf.PID = int32(binary.BigEndian.Uint32(data[48:52]))
+ pf.RuleUID = binary.BigEndian.Uint32(data[52:56])
+ pf.RulePID = int32(binary.BigEndian.Uint32(data[56:60]))
+ pf.Direction = PFDirection(data[60])
+ if pf.Length%4 != 1 {
+ return errors.New("PFLog header length should be 3 less than multiple of 4")
+ }
+ actualLength := int(pf.Length) + 3
+ if len(data) < actualLength {
+ return fmt.Errorf("PFLog data size < %d", actualLength)
+ }
+ pf.Contents = data[:actualLength]
+ pf.Payload = data[actualLength:]
+ return nil
+}
+
+// LayerType returns layers.LayerTypePFLog
+func (pf *PFLog) LayerType() gopacket.LayerType { return LayerTypePFLog }
+
+func (pf *PFLog) CanDecode() gopacket.LayerClass { return LayerTypePFLog }
+
+func (pf *PFLog) NextLayerType() gopacket.LayerType {
+ return pf.Family.LayerType()
+}
+
+func decodePFLog(data []byte, p gopacket.PacketBuilder) error {
+ pf := &PFLog{}
+ return decodingLayerDecoder(pf, data, p)
+}