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ipn/ipnlocal: pass capability set, not netmap, to two helpers

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setWebClientAtomicBoolLocked and setDebugLogsByCapabilityLocked
each only need the node capabilities to decide what to do, so
take a set.Set[tailcfg.NodeCapability] directly as part of
getting rid of netmap.NetworkMap.

Updates #12542

Change-Id: If7c30b6354fd42dfe82ed6d2e2fe3439de401315
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit is contained in:
Brad Fitzpatrick
2026-06-24 22:03:50 +00:00
committed by Brad Fitzpatrick
parent 87cb2a8d1e
commit dd1df38200
1 changed files with 13 additions and 8 deletions
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21
ipn/ipnlocal/local.go
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@@ -2046,7 +2046,7 @@ func (b *LocalBackend) setControlClientStatusLocked(c controlclient.Client, st c
// Perform all reconfiguration based on the netmap here.
if st.NetMap != nil {
b.capTailnetLock = st.NetMap.HasCap(tailcfg.CapabilityTailnetLock)
b.setWebClientAtomicBoolLocked(st.NetMap)
b.setWebClientAtomicBoolLocked(st.NetMap.AllCaps)
b.mu.Unlock() // respect locking rules for tkaSyncIfNeeded
if err := b.tkaSyncIfNeeded(st.NetMap, prefs.View()); err != nil {
@@ -7042,13 +7042,14 @@ func (b *LocalBackend) ShouldExposeRemoteWebClient() bool {
}
// setWebClientAtomicBoolLocked sets webClientAtomicBool based on whether
// tailcfg.NodeAttrDisableWebClient has been set in the netmap.NetworkMap.
// tailcfg.NodeAttrDisableWebClient is present in caps. caps may be nil
// if the caller has no netmap.
//
// b.mu must be held.
func (b *LocalBackend) setWebClientAtomicBoolLocked(nm *netmap.NetworkMap) {
func (b *LocalBackend) setWebClientAtomicBoolLocked(caps set.Set[tailcfg.NodeCapability]) {
syncs.RequiresMutex(&b.mu)
shouldRun := !nm.HasCap(tailcfg.NodeAttrDisableWebClient)
shouldRun := !caps.Contains(tailcfg.NodeAttrDisableWebClient)
wasRunning := b.webClientAtomicBool.Swap(shouldRun)
if wasRunning && !shouldRun {
b.goTracker.Go(b.webClientShutdown) // stop web client
@@ -7364,7 +7365,11 @@ func (b *LocalBackend) setNetMapLocked(nm *netmap.NetworkMap) {
}
if buildfeatures.HasDebug {
b.setDebugLogsByCapabilityLocked(nm)
var caps set.Set[tailcfg.NodeCapability]
if nm != nil {
caps = nm.AllCaps
}
b.setDebugLogsByCapabilityLocked(caps)
}
// See the netns package for documentation on what these capability do.
@@ -7500,11 +7505,11 @@ func roundTraffic(bytes int64) float64 {
}
// setDebugLogsByCapabilityLocked sets debug logging based on the self node's
// capabilities in the provided NetMap.
func (b *LocalBackend) setDebugLogsByCapabilityLocked(nm *netmap.NetworkMap) {
// capabilities. caps may be nil if the caller has no netmap.
func (b *LocalBackend) setDebugLogsByCapabilityLocked(caps set.Set[tailcfg.NodeCapability]) {
// These are sufficiently cheap (atomic bools) that we don't need to
// store state and compare.
if nm.HasCap(tailcfg.CapabilityDebugTSDNSResolution) {
if caps.Contains(tailcfg.CapabilityDebugTSDNSResolution) {
dnscache.SetDebugLoggingEnabled(true)
} else {
dnscache.SetDebugLoggingEnabled(false)