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cip.go
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cip.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"
"github.com/prometheus/client_golang/prometheus"
)
var fieldsCIP = []string{
"Timestamp",
"Response", // bool
"ServiceID", // int32
"ClassID", // uint32
"InstanceID", // uint32
"Status", // int32
"AdditionalStatus", // []uint32
"Data", // []byte
"SrcIP",
"DstIP",
"SrcPort",
"DstPort",
}
func (a CIP) CSVHeader() []string {
return filter(fieldsCIP)
}
func (a CIP) CSVRecord() []string {
var additional = make([]string, len(a.AdditionalStatus))
if a.Response {
for _, v := range a.AdditionalStatus {
additional = append(additional, formatUint32(v))
}
}
// prevent accessing nil pointer
if a.Context == nil {
a.Context = &PacketContext{}
}
return filter([]string{
formatTimestamp(a.Timestamp),
strconv.FormatBool(a.Response), // bool
formatInt32(a.ServiceID), // int32
formatUint32(a.ClassID), // uint32
formatUint32(a.InstanceID), // uint32
formatInt32(a.Status), // int32
strings.Join(additional, ""), // []uint32
hex.EncodeToString(a.Data), // []byte
a.Context.SrcIP,
a.Context.DstIP,
a.Context.SrcPort,
a.Context.DstPort,
})
}
func (a CIP) Time() string {
return a.Timestamp
}
func (a CIP) JSON() (string, error) {
return jsonMarshaler.MarshalToString(&a)
}
var cipMetric = prometheus.NewCounterVec(
prometheus.CounterOpts{
Name: strings.ToLower(Type_NC_CIP.String()),
Help: Type_NC_CIP.String() + " audit records",
},
fieldsCIP[1:],
)
func init() {
prometheus.MustRegister(cipMetric)
}
func (a CIP) Inc() {
cipMetric.WithLabelValues(a.CSVRecord()[1:]...).Inc()
}
func (a *CIP) SetPacketContext(ctx *PacketContext) {
a.Context = ctx
}
func (a CIP) Src() string {
if a.Context != nil {
return a.Context.SrcIP
}
return ""
}
func (a CIP) Dst() string {
if a.Context != nil {
return a.Context.DstIP
}
return ""
}