diff options
Diffstat (limited to 'vendor/github.com/google/gopacket/layers/icmp6.go')
| -rw-r--r-- | vendor/github.com/google/gopacket/layers/icmp6.go | 231 |
1 files changed, 0 insertions, 231 deletions
diff --git a/vendor/github.com/google/gopacket/layers/icmp6.go b/vendor/github.com/google/gopacket/layers/icmp6.go deleted file mode 100644 index 03a3213..0000000 --- a/vendor/github.com/google/gopacket/layers/icmp6.go +++ /dev/null @@ -1,231 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// Copyright 2009-2011 Andreas Krennmair. 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" - "reflect" - - "github.com/google/gopacket" -) - -const ( - // The following are from RFC 4443 - ICMPv6TypeDestinationUnreachable = 1 - ICMPv6TypePacketTooBig = 2 - ICMPv6TypeTimeExceeded = 3 - ICMPv6TypeParameterProblem = 4 - ICMPv6TypeEchoRequest = 128 - ICMPv6TypeEchoReply = 129 - // The following are from RFC 4861 - ICMPv6TypeRouterSolicitation = 133 - ICMPv6TypeRouterAdvertisement = 134 - ICMPv6TypeNeighborSolicitation = 135 - ICMPv6TypeNeighborAdvertisement = 136 - ICMPv6TypeRedirect = 137 -) - -const ( - // DestinationUnreachable - ICMPv6CodeNoRouteToDst = 0 - ICMPv6CodeAdminProhibited = 1 - ICMPv6CodeBeyondScopeOfSrc = 2 - ICMPv6CodeAddressUnreachable = 3 - ICMPv6CodePortUnreachable = 4 - ICMPv6CodeSrcAddressFailedPolicy = 5 - ICMPv6CodeRejectRouteToDst = 6 - - // TimeExceeded - ICMPv6CodeHopLimitExceeded = 0 - ICMPv6CodeFragmentReassemblyTimeExceeded = 1 - - // ParameterProblem - ICMPv6CodeErroneousHeaderField = 0 - ICMPv6CodeUnrecognizedNextHeader = 1 - ICMPv6CodeUnrecognizedIPv6Option = 2 -) - -type icmpv6TypeCodeInfoStruct struct { - typeStr string - codeStr *map[uint8]string -} - -var ( - icmpv6TypeCodeInfo = map[uint8]icmpv6TypeCodeInfoStruct{ - ICMPv6TypeDestinationUnreachable: icmpv6TypeCodeInfoStruct{ - "DestinationUnreachable", &map[uint8]string{ - ICMPv6CodeNoRouteToDst: "NoRouteToDst", - ICMPv6CodeAdminProhibited: "AdminProhibited", - ICMPv6CodeBeyondScopeOfSrc: "BeyondScopeOfSrc", - ICMPv6CodeAddressUnreachable: "AddressUnreachable", - ICMPv6CodePortUnreachable: "PortUnreachable", - ICMPv6CodeSrcAddressFailedPolicy: "SrcAddressFailedPolicy", - ICMPv6CodeRejectRouteToDst: "RejectRouteToDst", - }, - }, - ICMPv6TypePacketTooBig: icmpv6TypeCodeInfoStruct{ - "PacketTooBig", nil, - }, - ICMPv6TypeTimeExceeded: icmpv6TypeCodeInfoStruct{ - "TimeExceeded", &map[uint8]string{ - ICMPv6CodeHopLimitExceeded: "HopLimitExceeded", - ICMPv6CodeFragmentReassemblyTimeExceeded: "FragmentReassemblyTimeExceeded", - }, - }, - ICMPv6TypeParameterProblem: icmpv6TypeCodeInfoStruct{ - "ParameterProblem", &map[uint8]string{ - ICMPv6CodeErroneousHeaderField: "ErroneousHeaderField", - ICMPv6CodeUnrecognizedNextHeader: "UnrecognizedNextHeader", - ICMPv6CodeUnrecognizedIPv6Option: "UnrecognizedIPv6Option", - }, - }, - ICMPv6TypeEchoRequest: icmpv6TypeCodeInfoStruct{ - "EchoRequest", nil, - }, - ICMPv6TypeEchoReply: icmpv6TypeCodeInfoStruct{ - "EchoReply", nil, - }, - ICMPv6TypeRouterSolicitation: icmpv6TypeCodeInfoStruct{ - "RouterSolicitation", nil, - }, - ICMPv6TypeRouterAdvertisement: icmpv6TypeCodeInfoStruct{ - "RouterAdvertisement", nil, - }, - ICMPv6TypeNeighborSolicitation: icmpv6TypeCodeInfoStruct{ - "NeighborSolicitation", nil, - }, - ICMPv6TypeNeighborAdvertisement: icmpv6TypeCodeInfoStruct{ - "NeighborAdvertisement", nil, - }, - ICMPv6TypeRedirect: icmpv6TypeCodeInfoStruct{ - "Redirect", nil, - }, - } -) - -type ICMPv6TypeCode uint16 - -// Type returns the ICMPv6 type field. -func (a ICMPv6TypeCode) Type() uint8 { - return uint8(a >> 8) -} - -// Code returns the ICMPv6 code field. -func (a ICMPv6TypeCode) Code() uint8 { - return uint8(a) -} - -func (a ICMPv6TypeCode) String() string { - t, c := a.Type(), a.Code() - strInfo, ok := icmpv6TypeCodeInfo[t] - if !ok { - // Unknown ICMPv6 type field - return fmt.Sprintf("%d(%d)", t, c) - } - typeStr := strInfo.typeStr - if strInfo.codeStr == nil && c == 0 { - // The ICMPv6 type does not make use of the code field - return fmt.Sprintf("%s", strInfo.typeStr) - } - if strInfo.codeStr == nil && c != 0 { - // The ICMPv6 type does not make use of the code field, but it is present anyway - return fmt.Sprintf("%s(Code: %d)", typeStr, c) - } - codeStr, ok := (*strInfo.codeStr)[c] - if !ok { - // We don't know this ICMPv6 code; print the numerical value - return fmt.Sprintf("%s(Code: %d)", typeStr, c) - } - return fmt.Sprintf("%s(%s)", typeStr, codeStr) -} - -func (a ICMPv6TypeCode) GoString() string { - t := reflect.TypeOf(a) - return fmt.Sprintf("%s(%d, %d)", t.String(), a.Type(), a.Code()) -} - -// SerializeTo writes the ICMPv6TypeCode value to the 'bytes' buffer. -func (a ICMPv6TypeCode) SerializeTo(bytes []byte) { - binary.BigEndian.PutUint16(bytes, uint16(a)) -} - -// CreateICMPv6TypeCode is a convenience function to create an ICMPv6TypeCode -// gopacket type from the ICMPv6 type and code values. -func CreateICMPv6TypeCode(typ uint8, code uint8) ICMPv6TypeCode { - return ICMPv6TypeCode(binary.BigEndian.Uint16([]byte{typ, code})) -} - -// ICMPv6 is the layer for IPv6 ICMP packet data -type ICMPv6 struct { - BaseLayer - TypeCode ICMPv6TypeCode - Checksum uint16 - TypeBytes []byte - tcpipchecksum -} - -// LayerType returns LayerTypeICMPv6. -func (i *ICMPv6) LayerType() gopacket.LayerType { return LayerTypeICMPv6 } - -// DecodeFromBytes decodes the given bytes into this layer. -func (i *ICMPv6) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 8 { - df.SetTruncated() - return errors.New("ICMP layer less then 8 bytes for ICMPv6 packet") - } - i.TypeCode = CreateICMPv6TypeCode(data[0], data[1]) - i.Checksum = binary.BigEndian.Uint16(data[2:4]) - i.TypeBytes = data[4:8] - i.BaseLayer = BaseLayer{data[:8], data[8:]} - return nil -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (i *ICMPv6) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - if i.TypeBytes == nil { - i.TypeBytes = lotsOfZeros[:4] - } else if len(i.TypeBytes) != 4 { - return fmt.Errorf("invalid type bytes for ICMPv6 packet: %v", i.TypeBytes) - } - bytes, err := b.PrependBytes(8) - if err != nil { - return err - } - i.TypeCode.SerializeTo(bytes) - copy(bytes[4:8], i.TypeBytes) - if opts.ComputeChecksums { - bytes[2] = 0 - bytes[3] = 0 - csum, err := i.computeChecksum(b.Bytes(), IPProtocolICMPv6) - if err != nil { - return err - } - i.Checksum = csum - } - binary.BigEndian.PutUint16(bytes[2:], i.Checksum) - return nil -} - -// CanDecode returns the set of layer types that this DecodingLayer can decode. -func (i *ICMPv6) CanDecode() gopacket.LayerClass { - return LayerTypeICMPv6 -} - -// NextLayerType returns the layer type contained by this DecodingLayer. -func (i *ICMPv6) NextLayerType() gopacket.LayerType { - return gopacket.LayerTypePayload -} - -func decodeICMPv6(data []byte, p gopacket.PacketBuilder) error { - i := &ICMPv6{} - return decodingLayerDecoder(i, data, p) -} |