sockstats: add labels for netlog and sockstatlog packages

Signed-off-by: Will Norris <will@tailscale.com>

log/sockstatlog/logger.go

@@ -125,6 +125,7 @@ func NewLogger(logdir string, logf logger.Logf, logID logid.PublicID) (*Logger,
 
 		HTTPC: &http.Client{Transport: logger.tr},
 	}, logf)
+	logger.logger.SetSockstatsLabel(sockstats.LabelSockstatlogLogger)
 
 	return logger, nil
 }

net/sockstats/label_string.go

@@ -18,11 +18,13 @@ func _() {
 	_ = x[LabelPortmapperClient-7]
 	_ = x[LabelMagicsockConnUDP4-8]
 	_ = x[LabelMagicsockConnUDP6-9]
+	_ = x[LabelNetlogLogger-10]
+	_ = x[LabelSockstatlogLogger-11]
 }
 
-const _Label_name = "ControlClientAutoControlClientDialerDERPHTTPClientLogtailLoggerDNSForwarderDoHDNSForwarderUDPNetcheckClientPortmapperClientMagicsockConnUDP4MagicsockConnUDP6"
+const _Label_name = "ControlClientAutoControlClientDialerDERPHTTPClientLogtailLoggerDNSForwarderDoHDNSForwarderUDPNetcheckClientPortmapperClientMagicsockConnUDP4MagicsockConnUDP6NetlogLoggerSockstatlogLogger"
 
-var _Label_index = [...]uint8{0, 17, 36, 50, 63, 78, 93, 107, 123, 140, 157}
+var _Label_index = [...]uint8{0, 17, 36, 50, 63, 78, 93, 107, 123, 140, 157, 169, 186}
 
 func (i Label) String() string {
 	if i >= Label(len(_Label_index)-1) {

net/sockstats/sockstats.go

@@ -38,16 +38,18 @@ type Label uint8
 // Labels are named after the package and function/struct that uses the socket.
 // Values may be persisted and thus existing entries should not be re-numbered.
 const (
-	LabelControlClientAuto   Label = 0 // control/controlclient/auto.go
-	LabelControlClientDialer Label = 1 // control/controlhttp/client.go
-	LabelDERPHTTPClient      Label = 2 // derp/derphttp/derphttp_client.go
-	LabelLogtailLogger       Label = 3 // logtail/logtail.go
-	LabelDNSForwarderDoH     Label = 4 // net/dns/resolver/forwarder.go
-	LabelDNSForwarderUDP     Label = 5 // net/dns/resolver/forwarder.go
-	LabelNetcheckClient      Label = 6 // net/netcheck/netcheck.go
-	LabelPortmapperClient    Label = 7 // net/portmapper/portmapper.go
-	LabelMagicsockConnUDP4   Label = 8 // wgengine/magicsock/magicsock.go
-	LabelMagicsockConnUDP6   Label = 9 // wgengine/magicsock/magicsock.go
+	LabelControlClientAuto   Label = 0  // control/controlclient/auto.go
+	LabelControlClientDialer Label = 1  // control/controlhttp/client.go
+	LabelDERPHTTPClient      Label = 2  // derp/derphttp/derphttp_client.go
+	LabelLogtailLogger       Label = 3  // logtail/logtail.go
+	LabelDNSForwarderDoH     Label = 4  // net/dns/resolver/forwarder.go
+	LabelDNSForwarderUDP     Label = 5  // net/dns/resolver/forwarder.go
+	LabelNetcheckClient      Label = 6  // net/netcheck/netcheck.go
+	LabelPortmapperClient    Label = 7  // net/portmapper/portmapper.go
+	LabelMagicsockConnUDP4   Label = 8  // wgengine/magicsock/magicsock.go
+	LabelMagicsockConnUDP6   Label = 9  // wgengine/magicsock/magicsock.go
+	LabelNetlogLogger        Label = 10 // wgengine/netlog/logger.go
+	LabelSockstatlogLogger   Label = 11 // log/sockstatlog/logger.go
 )
 
 // WithSockStats instruments a context so that sockets created with it will

wgengine/netlog/logger.go

@@ -19,6 +19,7 @@ import (
 	"tailscale.com/logpolicy"
 	"tailscale.com/logtail"
 	"tailscale.com/net/connstats"
+	"tailscale.com/net/sockstats"
 	"tailscale.com/net/tsaddr"
 	"tailscale.com/smallzstd"
 	"tailscale.com/tailcfg"
@@ -121,6 +122,7 @@ func (nl *Logger) Startup(nodeID tailcfg.StableNodeID, nodeLogID, domainLogID lo
 		IncludeProcID:       true,
 		IncludeProcSequence: true,
 	}, log.Printf)
+	nl.logger.SetSockstatsLabel(sockstats.LabelNetlogLogger)
 
 	// Startup a data structure to track per-connection statistics.
 	// There is a maximum size for individual log messages that logtail