ipn{,/local},cmd/tailscale: add "sync" flag and pref to disable control map poll

For manual (human) testing, this lets the user disable control plane map polls with "tailscale set --sync=false" (which survives restarts) and "tailscale set --sync" to restore. A high severity health warning is shown while this is active. Updates #12639 Updates #17945 Change-Id: I83668fa5de3b5e5e25444df0815ec2a859153a6d Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2025-11-17 08:06:16 -08:00
parent 165a24744e
commit f1cddc6ecf
10 changed files with 136 additions and 6 deletions
@@ -90,6 +90,7 @@ var _PrefsCloneNeedsRegeneration = Prefs(struct {
 	Egg                    bool
 	AdvertiseRoutes        []netip.Prefix
 	AdvertiseServices      []string
+	Sync                   opt.Bool
 	NoSNAT                 bool
 	NoStatefulFiltering    opt.Bool
 	NetfilterMode          preftype.NetfilterMode