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// Copyright 2021 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 safemount_test
import (
"os"
"os/exec"
"syscall"
"testing"
"golang.org/x/sys/unix"
"gvisor.dev/gvisor/pkg/test/testutil"
)
func TestSafeMount(t *testing.T) {
// We run the actual tests in another process, as we need CAP_SYS_ADMIN to
// call mount(2). The new process runs in its own user and mount namespaces.
runner, err := testutil.FindFile("runsc/specutils/safemount_test/safemount_runner")
if err != nil {
t.Fatalf("failed to find test runner binary: %v", err)
}
cmd := exec.Command(runner, t.TempDir())
cmd.SysProcAttr = &unix.SysProcAttr{
Cloneflags: unix.CLONE_NEWNS | unix.CLONE_NEWUSER,
UidMappings: []syscall.SysProcIDMap{
{ContainerID: 0, HostID: os.Getuid(), Size: 1},
},
GidMappings: []syscall.SysProcIDMap{
{ContainerID: 0, HostID: os.Getgid(), Size: 1},
},
GidMappingsEnableSetgroups: false,
Credential: &syscall.Credential{
Uid: 0,
Gid: 0,
},
}
output, err := cmd.CombinedOutput()
if err != nil {
t.Fatalf("failed running %s with error: %v\ntest output:\n%s", cmd, err, output)
}
}
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