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llc.go
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llc.go
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/*
* NETCAP - Traffic Analysis Framework
* Copyright (c) 2017-2020 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 (
"github.com/dreadl0ck/netcap/encoder"
"strconv"
"strings"
"time"
"github.com/prometheus/client_golang/prometheus"
)
const (
fieldDSAP = "DSAP"
fieldIG = "IG"
fieldSSAP = "SSAP"
fieldCR = "CR"
fieldControl = "Control"
)
var fieldsLLC = []string{
fieldTimestamp, // string
fieldDSAP, // int32
fieldIG, // bool
fieldSSAP, // int32
fieldCR, // bool
fieldControl, // int32
}
// CSVHeader returns the CSV header for the audit record.
func (l *LLC) CSVHeader() []string {
return filter(fieldsLLC)
}
// CSVRecord returns the CSV record for the audit record.
func (l *LLC) CSVRecord() []string {
return filter([]string{
formatTimestamp(l.Timestamp),
formatInt32(l.DSAP), // int32
strconv.FormatBool(l.IG), // bool
formatInt32(l.SSAP), // int32
strconv.FormatBool(l.CR), // bool
formatInt32(l.Control), // int32
})
}
// Time returns the timestamp associated with the audit record.
func (l *LLC) Time() int64 {
return l.Timestamp
}
// JSON returns the JSON representation of the audit record.
func (l *LLC) JSON() (string, error) {
// convert unix timestamp from nano to millisecond precision for elastic
l.Timestamp /= int64(time.Millisecond)
return jsonMarshaler.MarshalToString(l)
}
var llcMetric = prometheus.NewCounterVec(
prometheus.CounterOpts{
Name: strings.ToLower(Type_NC_LLC.String()),
Help: Type_NC_LLC.String() + " audit records",
},
fieldsLLC[1:],
)
// Inc increments the metrics for the audit record.
func (l *LLC) Inc() {
llcMetric.WithLabelValues(l.CSVRecord()[1:]...).Inc()
}
// SetPacketContext sets the associated packet context for the audit record.
func (l *LLC) SetPacketContext(*PacketContext) {}
// Src TODO.
// Src returns the source address of the audit record.
func (l *LLC) Src() string {
return ""
}
// Dst returns the destination address of the audit record.
func (l *LLC) Dst() string {
return ""
}
var llcEncoder = encoder.NewValueEncoder()
// Encode will encode categorical values and normalize according to configuration
func (l *LLC) Encode() []string {
return filter([]string{
ethernetEncoder.Int64(fieldTimestamp, l.Timestamp),
llcEncoder.Int32(fieldDSAP, l.DSAP), // int32
llcEncoder.Bool(l.IG), // bool
llcEncoder.Int32(fieldSSAP, l.SSAP), // int32
llcEncoder.Bool(l.CR), // bool
llcEncoder.Int32(fieldControl, l.Control), // int32
})
}
// Analyze will invoke the configured analyzer for the audit record and return a score.
func (l *LLC) Analyze() {}
// NetcapType returns the type of the current audit record
func (l *LLC) NetcapType() Type {
return Type_NC_LLC
}