android: log when VPN not established (#641)

kari-ts · web-flow · commit 6e856b12421f · 2025-04-17T13:19:37.000-07:00
Updates tailscale/tailscale#15506 Signed-off-by: kari-ts <kari@tailscale.com>
diff --git a/libtailscale/net.go b/libtailscale/net.go
@@ -207,6 +207,7 @@ func (b *backend) updateTUN(rcfg *router.Config, dcfg *dns.OSConfig) error {
 	b.logger.Logf("updateTUN: established VPN")
 
 	if parcelFD == nil {
+		b.logger.Logf("updateTUN: could not establish VPN because builder.Establish returned a nil ParcelFileDescriptor")
 		return errVPNNotPrepared
 	}
 

Original file line number	Diff line number	Diff line change
`@@ -207,6 +207,7 @@ func (b backend) updateTUN(rcfg router.Config, dcfg *dns.OSConfig) error {`
`207`	`207`	`b.logger.Logf("updateTUN: established VPN")`
`208`	`208`
`209`	`209`	`if parcelFD == nil {`
	`210`	`+ b.logger.Logf("updateTUN: could not establish VPN because builder.Establish returned a nil ParcelFileDescriptor")`
`210`	`211`	`return errVPNNotPrepared`
`211`	`212`	`}`
`212`	`213`