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icmp6na.go
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icmp6na.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"
"strings"
"time"
"github.com/prometheus/client_golang/prometheus"
)
const (
fieldTargetAddress = "TargetAddress"
)
var fieldsICMPv6NeighborAdvertisement = []string{
fieldTimestamp,
fieldFlags, // int32
fieldTargetAddress, // string
fieldOptions, // []*ICMPv6Option
fieldSrcIP,
fieldDstIP,
}
// CSVHeader returns the CSV header for the audit record.
func (i *ICMPv6NeighborAdvertisement) CSVHeader() []string {
return filter(fieldsICMPv6NeighborAdvertisement)
}
// CSVRecord returns the CSV record for the audit record.
func (i *ICMPv6NeighborAdvertisement) CSVRecord() []string {
var opts []string
for _, o := range i.Options {
opts = append(opts, o.toString())
}
return filter([]string{
formatTimestamp(i.Timestamp),
formatInt32(i.Flags),
i.TargetAddress,
strings.Join(opts, ""),
i.SrcIP,
i.DstIP,
})
}
// Time returns the timestamp associated with the audit record.
func (i *ICMPv6NeighborAdvertisement) Time() int64 {
return i.Timestamp
}
// JSON returns the JSON representation of the audit record.
func (i *ICMPv6NeighborAdvertisement) JSON() (string, error) {
// convert unix timestamp from nano to millisecond precision for elastic
i.Timestamp /= int64(time.Millisecond)
return jsonMarshaler.MarshalToString(i)
}
var icmp6naMetric = prometheus.NewCounterVec(
prometheus.CounterOpts{
Name: strings.ToLower(Type_NC_ICMPv6NeighborAdvertisement.String()),
Help: Type_NC_ICMPv6NeighborAdvertisement.String() + " audit records",
},
fieldsICMPv6NeighborAdvertisement[1:],
)
// Inc increments the metrics for the audit record.
func (i *ICMPv6NeighborAdvertisement) Inc() {
icmp6naMetric.WithLabelValues(i.CSVRecord()[1:]...).Inc()
}
// SetPacketContext sets the associated packet context for the audit record.
func (i *ICMPv6NeighborAdvertisement) SetPacketContext(ctx *PacketContext) {
i.SrcIP = ctx.SrcIP
i.DstIP = ctx.DstIP
}
// Src returns the source address of the audit record.
func (i *ICMPv6NeighborAdvertisement) Src() string {
return i.SrcIP
}
// Dst returns the destination address of the audit record.
func (i *ICMPv6NeighborAdvertisement) Dst() string {
return i.DstIP
}
var icmp6naEncoder = encoder.NewValueEncoder()
// Encode will encode categorical values and normalize according to configuration
func (i *ICMPv6NeighborAdvertisement) Encode() []string {
var opts []string
for _, o := range i.Options {
opts = append(opts, o.toString())
}
return filter([]string{
icmp6naEncoder.Int64(fieldTimestamp, i.Timestamp),
icmp6naEncoder.Int32(fieldFlags, i.Flags),
icmp6naEncoder.String(fieldTargetAddress, i.TargetAddress),
icmp6naEncoder.String(fieldOptions, strings.Join(opts, "")),
icmp6naEncoder.String(fieldSrcIP, i.SrcIP),
icmp6naEncoder.String(fieldDstIP, i.DstIP),
})
}
// Analyze will invoke the configured analyzer for the audit record and return a score.
func (i *ICMPv6NeighborAdvertisement) Analyze() {}
// NetcapType returns the type of the current audit record
func (i *ICMPv6NeighborAdvertisement) NetcapType() Type {
return Type_NC_ICMPv6NeighborAdvertisement
}