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geneve.go
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geneve.go
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/*
* NETCAP - Traffic Analysis Framework
* Copyright (c) 2017 Philipp Mieden <dreadl0ck [at] protonmail [dot] ch>
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package types
import (
"encoding/hex"
"strconv"
"strings"
)
func (i Geneve) CSVHeader() []string {
return filter([]string{
"Timestamp",
"Version", // int32
"OptionsLength", // int32
"OAMPacket", // bool
"CriticalOption", // bool
"Protocol", // int32
"VNI", // uint32
"Options", // []*GeneveOption
})
}
func (i Geneve) CSVRecord() []string {
var opts []string
for _, o := range i.Options {
opts = append(opts, o.ToString())
}
return filter([]string{
formatTimestamp(i.Timestamp),
formatInt32(i.Version), // int32
formatInt32(i.OptionsLength), // int32
strconv.FormatBool(i.OAMPacket), // bool
strconv.FormatBool(i.CriticalOption), // bool
formatInt32(i.Protocol), // int32
formatUint32(i.VNI), // uint32
strings.Join(opts, ""), // []*GeneveOption
})
}
func (i Geneve) NetcapTimestamp() string {
return i.Timestamp
}
func (i GeneveOption) ToString() string {
var b strings.Builder
b.WriteString(Begin)
b.WriteString(formatInt32(i.Class))
b.WriteString(Separator)
b.WriteString(formatInt32(i.Type))
b.WriteString(Separator)
b.WriteString(formatInt32(i.Flags))
b.WriteString(Separator)
b.WriteString(formatInt32(i.Length))
b.WriteString(Separator)
b.WriteString(hex.EncodeToString(i.Data))
b.WriteString(End)
return b.String()
}