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usb.go
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usb.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 fieldsUSB = []string{
"Timestamp",
"ID",
"EventType",
"TransferType",
"Direction",
"EndpointNumber",
"DeviceAddress",
"BusID",
"TimestampSec",
"TimestampUsec",
"Setup",
"Data",
"Status",
"UrbLength",
"UrbDataLength",
"UrbInterval",
"UrbStartFrame",
"UrbCopyOfTransferFlags",
"IsoNumDesc",
"Payload",
}
func (u USB) CSVHeader() []string {
return filter(fieldsUSB)
}
func (u USB) CSVRecord() []string {
return filter([]string{
formatTimestamp(u.Timestamp), // string
formatUint64(u.ID),
formatInt32(u.EventType),
formatInt32(u.TransferType),
formatInt32(u.Direction),
formatInt32(u.EndpointNumber),
formatInt32(u.DeviceAddress),
formatInt32(u.BusID),
formatInt64(u.TimestampSec),
formatInt32(u.TimestampUsec),
strconv.FormatBool(u.Setup),
strconv.FormatBool(u.Data),
formatInt32(u.Status),
formatUint32(u.UrbLength),
formatUint32(u.UrbDataLength),
formatUint32(u.UrbInterval),
formatUint32(u.UrbStartFrame),
formatUint32(u.UrbCopyOfTransferFlags),
formatUint32(u.IsoNumDesc),
hex.EncodeToString(u.Payload),
})
}
func (f USB) Time() string {
return f.Timestamp
}
func (f USB) JSON() (string, error) {
return jsonMarshaler.MarshalToString(&f)
}
var usbMetric = prometheus.NewCounterVec(
prometheus.CounterOpts{
Name: strings.ToLower(Type_NC_USB.String()),
Help: Type_NC_USB.String() + " audit records",
},
fieldsUSB[1:],
)
func init() {
prometheus.MustRegister(usbMetric)
}
func (a USB) Inc() {
usbMetric.WithLabelValues(a.CSVRecord()[1:]...).Inc()
}
func (a *USB) SetPacketContext(ctx *PacketContext) {}
// TODO return source DeviceAddress?
func (a USB) Src() string {
return ""
}
// TODO return destination DeviceAddress?
func (a USB) Dst() string {
return ""
}