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eapolkey.go
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/
eapolkey.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 fieldsEAPOLKey = []string{
"Timestamp",
"KeyDescriptorType", // int32
"KeyDescriptorVersion", // int32
"KeyType", // int32
"KeyIndex", // int32
"Install", // bool
"KeyACK", // bool
"KeyMIC", // bool
"Secure", // bool
"MICError", // bool
"Request", // bool
"HasEncryptedKeyData", // bool
"SMKMessage", // bool
"KeyLength", // int32
"ReplayCounter", // uint64
"Nonce", // []byte
"IV", // []byte
"RSC", // uint64
"ID", // uint64
"MIC", // []byte
"KeyDataLength", // int32
"EncryptedKeyData", // []byte
}
func (a EAPOLKey) CSVHeader() []string {
return filter(fieldsEAPOLKey)
}
func (a EAPOLKey) CSVRecord() []string {
return filter([]string{
formatTimestamp(a.Timestamp),
formatInt32(a.KeyDescriptorType), // int32
formatInt32(a.KeyDescriptorVersion), // int32
formatInt32(a.KeyType), // int32
formatInt32(a.KeyIndex), // int32
strconv.FormatBool(a.Install), // bool
strconv.FormatBool(a.KeyACK), // bool
strconv.FormatBool(a.KeyMIC), // bool
strconv.FormatBool(a.Secure), // bool
strconv.FormatBool(a.MICError), // bool
strconv.FormatBool(a.Request), // bool
strconv.FormatBool(a.HasEncryptedKeyData), // bool
strconv.FormatBool(a.SMKMessage), // bool
formatInt32(a.KeyLength), // int32
formatUint64(a.ReplayCounter), // uint64
hex.EncodeToString(a.Nonce), // []byte
hex.EncodeToString(a.IV), // []byte
formatUint64(a.RSC), // uint64
formatUint64(a.ID), // uint64
hex.EncodeToString(a.MIC), // []byte
formatInt32(a.KeyDataLength), // int32
hex.EncodeToString(a.EncryptedKeyData), // []byte
})
}
func (a EAPOLKey) Time() string {
return a.Timestamp
}
func (a EAPOLKey) JSON() (string, error) {
return jsonMarshaler.MarshalToString(&a)
}
var eapPolKeyMetric = prometheus.NewCounterVec(
prometheus.CounterOpts{
Name: strings.ToLower(Type_NC_EAPOLKey.String()),
Help: Type_NC_EAPOLKey.String() + " audit records",
},
fieldsEAPOLKey[1:],
)
func init() {
prometheus.MustRegister(eapPolKeyMetric)
}
func (a EAPOLKey) Inc() {
eapPolKeyMetric.WithLabelValues(a.CSVRecord()[1:]...).Inc()
}
func (a *EAPOLKey) SetPacketContext(ctx *PacketContext) {}
// TODO: return Mac addr
func (a EAPOLKey) Src() string {
return ""
}
func (a EAPOLKey) Dst() string {
return ""
}