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Merged
merged 17 commits into from
Jul 10, 2024
Merged

chore: add additional network telemetry stats & events #13800

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6ee3bfa
chore: add additional network telemetry stats & events
ethanndickson Jul 8, 2024
6e0ec17
better connectionage
ethanndickson Jul 8, 2024
ae17bb3
send update events only when home derp changes
ethanndickson Jul 8, 2024
612ae5f
better remote node id
ethanndickson Jul 8, 2024
d2d9c39
use netmap callback
ethanndickson Jul 8, 2024
af36c37
fixup
ethanndickson Jul 8, 2024
3466ba6
fixup
ethanndickson Jul 8, 2024
dbffec4
test
ethanndickson Jul 8, 2024
b240507
set p2p setup
ethanndickson Jul 9, 2024
e2e4018
fixup
ethanndickson Jul 9, 2024
0bebad4
watch for conn changes
ethanndickson Jul 9, 2024
6a19849
fixup
ethanndickson Jul 9, 2024
11f2a2b
use latest p2p setup time
ethanndickson Jul 9, 2024
fe7252a
ensure latest derpmap
ethanndickson Jul 9, 2024
4b76942
nicer ping peer
ethanndickson Jul 9, 2024
6214e2a
fix race
ethanndickson Jul 9, 2024
60e88f7
relay -> udp addr
ethanndickson Jul 10, 2024
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send update events only when home derp changes
  • Loading branch information
@ethanndickson
ethanndickson committed Jul 8, 2024
commit ae17bb3ead50a54a49e979ad52a79b422b2bc0d6
7 changes: 4 additions & 3 deletions tailnet/conn.go
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Original file line number Diff line number Diff line change
Expand Up @@ -266,8 +266,8 @@ func NewConn(options *Options) (conn *Conn, err error) {
magicConn.SetDERPForcedWebsocketCallback(nodeUp.setDERPForcedWebsocket)
if telemetryStore != nil {
wireguardEngine.SetNetInfoCallback(func(ni *tailcfg.NetInfo) {
nodeUp.setNetInfo(ni)
telemetryStore.setNetInfo(ni)
nodeUp.setNetInfo(ni)
})
} else {
wireguardEngine.SetNetInfoCallback(nodeUp.setNetInfo)
Expand Down Expand Up @@ -393,8 +393,9 @@ func (c *Conn) SetAddresses(ips []netip.Prefix) error {
func (c *Conn) SetNodeCallback(callback func(node *Node)) {
if c.telemetryStore != nil {
c.nodeUpdater.setCallback(func(node *Node) {
c.telemetryStore.updateByNode(node)
c.sendUpdatedTelemetry()
if c.telemetryStore.updateByNode(node) {
c.sendUpdatedTelemetry()
}
callback(node)
})
} else {
Expand Down
25 changes: 13 additions & 12 deletions tailnet/telemetry.go
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Original file line number Diff line number Diff line change
Expand Up @@ -34,7 +34,7 @@ type TelemetryStore struct {
nodeID uint64
homeDerp int32

connSetupTime time.Duration
connSetupTime *durationpb.Duration
}

func newTelemetryStore() (*TelemetryStore, error) {
Expand All @@ -59,7 +59,7 @@ func (b *TelemetryStore) newEvent() *proto.TelemetryEvent {
LatestNetcheck: b.cleanNetCheck,
NodeIdSelf: b.nodeID,
HomeDerp: b.homeDerp,
ConnectionSetup: durationpb.New(b.connSetupTime),
ConnectionSetup: b.connSetupTime,

// TODO(ethanndickson):
P2PSetup: &durationpb.Duration{},
Expand All @@ -70,7 +70,7 @@ func (b *TelemetryStore) markConnected(connSetupTime time.Duration) {
b.mu.Lock()
defer b.mu.Unlock()

b.connSetupTime = connSetupTime
b.connSetupTime = durationpb.New(connSetupTime)
}

// Given a DERPMap, anonymise all IPs and hostnames.
Expand All @@ -97,24 +97,26 @@ func (b *TelemetryStore) updateDerpMap(cur *tailcfg.DERPMap) {
b.cleanDerpMap = cleanMap
}

func (b *TelemetryStore) updateByNode(n *Node) {
// Update the telemetry store with the current node state.
// Returns true if the home DERP has changed.
func (b *TelemetryStore) updateByNode(n *Node) bool {
b.mu.Lock()
defer b.mu.Unlock()

b.nodeID = uint64(n.ID)
b.homeDerp = int32(n.PreferredDERP)
newHome := int32(n.PreferredDERP)
if b.homeDerp != newHome {
b.homeDerp = newHome
return true
}
return false
}

// Store an anonymized proto.Netcheck given a tailscale NetInfo.
func (b *TelemetryStore) setNetInfo(ni *tailcfg.NetInfo) bool {
func (b *TelemetryStore) setNetInfo(ni *tailcfg.NetInfo) {
b.mu.Lock()
defer b.mu.Unlock()

derpHomeChanged := false
if b.cleanNetCheck != nil {
derpHomeChanged = b.cleanNetCheck.PreferredDERP != int64(ni.PreferredDERP)
}

b.cleanNetCheck = &proto.Netcheck{
UDP: ni.UDP,
IPv6: ni.IPv6,
Expand Down Expand Up @@ -152,7 +154,6 @@ func (b *TelemetryStore) setNetInfo(ni *tailcfg.NetInfo) bool {
for rid, seconds := range ni.DERPLatencyV6 {
b.cleanNetCheck.RegionV6Latency[int64(rid)] = durationpb.New(time.Duration(seconds * float64(time.Second)))
}
return derpHomeChanged
}

func (b *TelemetryStore) toEndpoint(ipport string) *proto.TelemetryEvent_P2PEndpoint {
Expand Down