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Temporary: Marked with comments where to disable code for experiments

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This commit is contained in:
Nimrod Gilboa Markevich
2022-05-15 13:26:41 +03:00
parent b27a87a168
commit 8c788742f8
7 changed files with 9 additions and 0 deletions
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1
agent/main.go
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@@ -294,6 +294,7 @@ func pipeTapChannelToSocket(connection *websocket.Conn, messageDataChannel <-cha
// NOTE: This is where the `*tapApi.OutputChannelItem` leaves the code // NOTE: This is where the `*tapApi.OutputChannelItem` leaves the code
// and goes into the intermediate WebSocket. // and goes into the intermediate WebSocket.
// (DEBUG_PERF 7) Comment out to disable writing to WebSocket
err = connection.WriteMessage(websocket.TextMessage, marshaledData) err = connection.WriteMessage(websocket.TextMessage, marshaledData)
if err != nil { if err != nil {
logger.Log.Errorf("error sending message through socket server %v, err: %s, (%v,%+v)", messageData, err, err, err) logger.Log.Errorf("error sending message through socket server %v, err: %s, (%v,%+v)", messageData, err, err, err)

2
agent/pkg/app/main.go
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@@ -24,6 +24,8 @@ var (
) )
func LoadExtensions() { func LoadExtensions() {
// (DEBUG_PERF 5) Comment out paragraphs to disable extensions
// Remember to fix indices: Length of Extensions slice, index in assignment to Extensions
Extensions = make([]*tapApi.Extension, 4) Extensions = make([]*tapApi.Extension, 4)
ExtensionsMap = make(map[string]*tapApi.Extension) ExtensionsMap = make(map[string]*tapApi.Extension)

1
tap/api/api.go
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@@ -149,6 +149,7 @@ type Emitter interface {
} }
func (e *Emitting) Emit(item *OutputChannelItem) { func (e *Emitting) Emit(item *OutputChannelItem) {
// (DEBUG_PERF 6) Comment out to disable emitting from tapper to api-server
e.OutputChannel <- item e.OutputChannel <- item
e.AppStats.IncMatchedPairs() e.AppStats.IncMatchedPairs()
} }

1
tap/source/packet_source_manager.go
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@@ -44,6 +44,7 @@ func NewPacketSourceManager(procfs string, filename string, interfaceName string
behaviour: behaviour, behaviour: behaviour,
} }
// (DEBUG_PERF 1) Comment out to disable host pcap (do not pass --tls or --service-mesh)
go hostSource.readPackets(ipdefrag, packets) go hostSource.readPackets(ipdefrag, packets)
return sourceManager, nil return sourceManager, nil
} }

1
tap/tcp_assembler.go
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@@ -78,6 +78,7 @@ func (a *tcpAssembler) processPackets(dumpPacket bool, packets <-chan source.Tcp
logger.Log.Debugf("Packet content (%d/0x%x) - %s", len(data), len(data), hex.Dump(data)) logger.Log.Debugf("Packet content (%d/0x%x) - %s", len(data), len(data), hex.Dump(data))
} }
// (DEBUG_PERF 2) Comment out to disable assembler
tcp := packet.Layer(layers.LayerTypeTCP) tcp := packet.Layer(layers.LayerTypeTCP)
if tcp != nil { if tcp != nil {
diagnose.AppStats.IncTcpPacketsCount() diagnose.AppStats.IncTcpPacketsCount()

2
tap/tcp_reader.go
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@@ -55,6 +55,8 @@ func NewTcpReader(msgQueue chan api.TcpReaderDataMsg, progress *api.ReadProgress
func (reader *tcpReader) run(options *api.TrafficFilteringOptions, wg *sync.WaitGroup) { func (reader *tcpReader) run(options *api.TrafficFilteringOptions, wg *sync.WaitGroup) {
defer wg.Done() defer wg.Done()
b := bufio.NewReader(reader) b := bufio.NewReader(reader)
// (DEBUG_PERF 4) Swap with next line to disable dissectors
// _, _ = io.ReadAll(b)
err := reader.extension.Dissector.Dissect(b, reader, options) err := reader.extension.Dissector.Dissect(b, reader, options)
if err != nil { if err != nil {
_, err = io.Copy(ioutil.Discard, reader) _, err = io.Copy(ioutil.Discard, reader)

1
tap/tcp_stream.go
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@@ -132,6 +132,7 @@ func (t *tcpStream) GetReqResMatchers() []api.RequestResponseMatcher {
} }
func (t *tcpStream) GetIsTapTarget() bool { func (t *tcpStream) GetIsTapTarget() bool {
// (DEBUG_PERF 3) Return false to disable Dissecting
return t.isTapTarget return t.isTapTarget
} }