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ntp.go
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ntp.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 encoder
import (
"github.com/dreadl0ck/netcap/types"
"github.com/golang/protobuf/proto"
"github.com/google/gopacket"
"github.com/google/gopacket/layers"
)
var ntpEncoder = CreateLayerEncoder(types.Type_NC_NTP, layers.LayerTypeNTP, func(layer gopacket.Layer, timestamp string) proto.Message {
if ntp, ok := layer.(*layers.NTP); ok {
return &types.NTP{
Timestamp: timestamp,
LeapIndicator: int32(ntp.LeapIndicator),
Version: int32(ntp.Version),
Mode: int32(ntp.Mode),
Stratum: int32(ntp.Stratum),
Poll: int32(ntp.Poll),
Precision: int32(ntp.Precision),
RootDelay: uint32(ntp.RootDelay),
RootDispersion: uint32(ntp.RootDispersion),
ReferenceID: uint32(ntp.ReferenceID),
ReferenceTimestamp: uint64(ntp.ReferenceTimestamp),
OriginTimestamp: uint64(ntp.OriginTimestamp),
ReceiveTimestamp: uint64(ntp.ReceiveTimestamp),
TransmitTimestamp: uint64(ntp.TransmitTimestamp),
ExtensionBytes: ntp.ExtensionBytes,
}
}
return nil
})