ipn/ipnlocal: only send AllowsUpdate if clientupdate feature is linked in

Like the earlier RemoteConfig change, gate Hostinfo.AllowsUpdate on
feature.IsRegistered("clientupdate") in addition to the
buildfeatures.HasClientUpdate build-tag const. tsnet binaries don't
import feature/clientupdate even though ts_omit_clientupdate isn't
set, so they shouldn't tell control they can be remotely updated.

Add the previously missing feature.Register call to
feature/clientupdate, document the binary-support requirement on
tailcfg.Hostinfo.AllowsUpdate, and make tsnet's dep test verify it
doesn't depend on feature/clientupdate.

Updates #12614

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Change-Id: I526ef11f2a4141f5fce161b1f77263324014b5c4

This commit is contained in:

Brad Fitzpatrick

2026-07-09 19:08:05 -07:00

committed by

Brad Fitzpatrick

parent ac84eb4900

commit b3d0ebcca3

5 changed files with 18 additions and 5 deletions

									
										feature/clientupdate/clientupdate.go
									
		+1
		
												View File
												
				@@ -36,6 +36,7 @@ import (

				)

				func init() {

					feature.Register("clientupdate")

					ipnext.RegisterExtension("clientupdate", newExt)

					// C2N