Merge branch 'master' into pr_syscall_linux

1 files changed, 45 insertions, 0 deletions

diff --git a/test/e2e/regression_test.go b/test/e2e/regression_test.go
new file mode 100644
index 000000000..2488be383
--- /dev/null
+++ b/test/e2e/regression_test.go
@@ -0,0 +1,45 @@
+// Copyright 2019 The gVisor Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package integration
+
+import (
+	"strings"
+	"testing"
+
+	"gvisor.dev/gvisor/runsc/dockerutil"
+)
+
+// Test that UDS can be created using overlay when parent directory is in lower
+// layer only (b/134090485).
+//
+// Prerequisite: the directory where the socket file is created must not have
+// been open for write before bind(2) is called.
+func TestBindOverlay(t *testing.T) {
+	if err := dockerutil.Pull("ubuntu:trusty"); err != nil {
+		t.Fatal("docker pull failed:", err)
+	}
+	d := dockerutil.MakeDocker("bind-overlay-test")
+
+	cmd := "nc -l -U /var/run/sock & p=$! && sleep 1 && echo foobar-asdf | nc -U /var/run/sock && wait $p"
+	got, err := d.RunFg("ubuntu:trusty", "bash", "-c", cmd)
+	if err != nil {
+		t.Fatal("docker run failed:", err)
+	}
+
+	if want := "foobar-asdf"; !strings.Contains(got, want) {
+		t.Fatalf("docker run output is missing %q: %s", want, got)
+	}
+	defer d.CleanUp()
+}