TheArchive/tailscale
1
0
Fork 0
mirror of https://github.com/tailscale/tailscale.git synced 2025-12-05 04:11:59 +00:00
Code Issues Packages Projects Releases Wiki Activity

appc,ipn/ipnlocal: log DNS parsing errors in app connectors (#14607)

Browse Source 
If we fail to parse the upstream DNS response in an app connector, we
might miss new IPs for the target domain. Log parsing errors to be able
to diagnose that.

Updates #14606

Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
This commit is contained in:
Andrew Lytvynov
2025-01-23 09:03:56 -08:00
committed by GitHub
parent a00623e8c4
commit f1710f4a42
5 changed files with 78 additions and 35 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
ipn/ipnlocal/local_test.go
View File

@@ -1372,7 +1372,9 @@ func TestObserveDNSResponse(t *testing.T) {
b := newTestBackend(t)
// ensure no error when no app connector is configured
b.ObserveDNSResponse(dnsResponse("example.com.", "192.0.0.8"))
if err := b.ObserveDNSResponse(dnsResponse("example.com.", "192.0.0.8")); err != nil {
t.Errorf("ObserveDNSResponse: %v", err)
}
rc := &appctest.RouteCollector{}
if shouldStore {
@@ -1383,7 +1385,9 @@ func TestObserveDNSResponse(t *testing.T) {
b.appConnector.UpdateDomains([]string{"example.com"})
b.appConnector.Wait(context.Background())
b.ObserveDNSResponse(dnsResponse("example.com.", "192.0.0.8"))
if err := b.ObserveDNSResponse(dnsResponse("example.com.", "192.0.0.8")); err != nil {
t.Errorf("ObserveDNSResponse: %v", err)
}
b.appConnector.Wait(context.Background())
wantRoutes := []netip.Prefix{netip.MustParsePrefix("192.0.0.8/32")}
if !slices.Equal(rc.Routes(), wantRoutes) {