diff options
Diffstat (limited to 'src/mongo/gotools/src/github.com/mongodb/mongo-tools/vendor/github.com/google/gopacket/layers/mldv1.go')
| -rw-r--r-- | src/mongo/gotools/src/github.com/mongodb/mongo-tools/vendor/github.com/google/gopacket/layers/mldv1.go | 182 |
1 files changed, 0 insertions, 182 deletions
diff --git a/src/mongo/gotools/src/github.com/mongodb/mongo-tools/vendor/github.com/google/gopacket/layers/mldv1.go b/src/mongo/gotools/src/github.com/mongodb/mongo-tools/vendor/github.com/google/gopacket/layers/mldv1.go deleted file mode 100644 index e1bb1dc00fe..00000000000 --- a/src/mongo/gotools/src/github.com/mongodb/mongo-tools/vendor/github.com/google/gopacket/layers/mldv1.go +++ /dev/null @@ -1,182 +0,0 @@ -// Copyright 2018 GoPacket Authors. 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" - "math" - "net" - "time" - - "github.com/google/gopacket" -) - -// MLDv1Message represents the common structure of all MLDv1 messages -type MLDv1Message struct { - BaseLayer - // 3.4. Maximum Response Delay - MaximumResponseDelay time.Duration - // 3.6. Multicast Address - // Zero in general query - // Specific IPv6 multicast address otherwise - MulticastAddress net.IP -} - -// DecodeFromBytes decodes the given bytes into this layer. -func (m *MLDv1Message) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 20 { - df.SetTruncated() - return errors.New("ICMP layer less than 20 bytes for Multicast Listener Query Message V1") - } - - m.MaximumResponseDelay = time.Duration(binary.BigEndian.Uint16(data[0:2])) * time.Millisecond - // data[2:4] is reserved and not used in mldv1 - m.MulticastAddress = data[4:20] - - return nil -} - -// NextLayerType returns the layer type contained by this DecodingLayer. -func (*MLDv1Message) NextLayerType() gopacket.LayerType { - return gopacket.LayerTypeZero -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (m *MLDv1Message) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - buf, err := b.PrependBytes(20) - if err != nil { - return err - } - - if m.MaximumResponseDelay < 0 { - return errors.New("maximum response delay must not be negative") - } - dms := m.MaximumResponseDelay / time.Millisecond - if dms > math.MaxUint16 { - return fmt.Errorf("maximum response delay %dms is more than the allowed 65535ms", dms) - } - binary.BigEndian.PutUint16(buf[0:2], uint16(dms)) - - copy(buf[2:4], []byte{0x0, 0x0}) - - ma16 := m.MulticastAddress.To16() - if ma16 == nil { - return fmt.Errorf("invalid multicast address '%s'", m.MulticastAddress) - } - copy(buf[4:20], ma16) - - return nil -} - -// Sums this layer up nicely formatted -func (m *MLDv1Message) String() string { - return fmt.Sprintf( - "Maximum Response Delay: %dms, Multicast Address: %s", - m.MaximumResponseDelay/time.Millisecond, - m.MulticastAddress) -} - -// MLDv1MulticastListenerQueryMessage are sent by the router to determine -// whether there are multicast listeners on the link. -// https://tools.ietf.org/html/rfc2710 Page 5 -type MLDv1MulticastListenerQueryMessage struct { - MLDv1Message -} - -// DecodeFromBytes decodes the given bytes into this layer. -func (m *MLDv1MulticastListenerQueryMessage) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - err := m.MLDv1Message.DecodeFromBytes(data, df) - if err != nil { - return err - } - - if len(data) > 20 { - m.Payload = data[20:] - } - - return nil -} - -// LayerType returns LayerTypeMLDv1MulticastListenerQuery. -func (*MLDv1MulticastListenerQueryMessage) LayerType() gopacket.LayerType { - return LayerTypeMLDv1MulticastListenerQuery -} - -// CanDecode returns the set of layer types that this DecodingLayer can decode. -func (*MLDv1MulticastListenerQueryMessage) CanDecode() gopacket.LayerClass { - return LayerTypeMLDv1MulticastListenerQuery -} - -// IsGeneralQuery is true when this is a general query. -// In a Query message, the Multicast Address field is set to zero when -// sending a General Query. -// https://tools.ietf.org/html/rfc2710#section-3.6 -func (m *MLDv1MulticastListenerQueryMessage) IsGeneralQuery() bool { - return net.IPv6zero.Equal(m.MulticastAddress) -} - -// IsSpecificQuery is true when this is not a general query. -// In a Query message, the Multicast Address field is set to a specific -// IPv6 multicast address when sending a Multicast-Address-Specific Query. -// https://tools.ietf.org/html/rfc2710#section-3.6 -func (m *MLDv1MulticastListenerQueryMessage) IsSpecificQuery() bool { - return !m.IsGeneralQuery() -} - -// MLDv1MulticastListenerReportMessage is sent by a client listening on -// a specific multicast address to indicate that it is (still) listening -// on the specific multicast address. -// https://tools.ietf.org/html/rfc2710 Page 6 -type MLDv1MulticastListenerReportMessage struct { - MLDv1Message -} - -// LayerType returns LayerTypeMLDv1MulticastListenerReport. -func (*MLDv1MulticastListenerReportMessage) LayerType() gopacket.LayerType { - return LayerTypeMLDv1MulticastListenerReport -} - -// CanDecode returns the set of layer types that this DecodingLayer can decode. -func (*MLDv1MulticastListenerReportMessage) CanDecode() gopacket.LayerClass { - return LayerTypeMLDv1MulticastListenerReport -} - -// MLDv1MulticastListenerDoneMessage should be sent by a client when it ceases -// to listen to a multicast address on an interface. -// https://tools.ietf.org/html/rfc2710 Page 7 -type MLDv1MulticastListenerDoneMessage struct { - MLDv1Message -} - -// LayerType returns LayerTypeMLDv1MulticastListenerDone. -func (*MLDv1MulticastListenerDoneMessage) LayerType() gopacket.LayerType { - return LayerTypeMLDv1MulticastListenerDone -} - -// CanDecode returns the set of layer types that this DecodingLayer can decode. -func (*MLDv1MulticastListenerDoneMessage) CanDecode() gopacket.LayerClass { - return LayerTypeMLDv1MulticastListenerDone -} - -func decodeMLDv1MulticastListenerReport(data []byte, p gopacket.PacketBuilder) error { - m := &MLDv1MulticastListenerReportMessage{} - return decodingLayerDecoder(m, data, p) -} - -func decodeMLDv1MulticastListenerQuery(data []byte, p gopacket.PacketBuilder) error { - m := &MLDv1MulticastListenerQueryMessage{} - return decodingLayerDecoder(m, data, p) -} - -func decodeMLDv1MulticastListenerDone(data []byte, p gopacket.PacketBuilder) error { - m := &MLDv1MulticastListenerDoneMessage{} - return decodingLayerDecoder(m, data, p) -} |