128 lines
3.3 KiB
Go
128 lines
3.3 KiB
Go
// Copyright 2018 The gVisor Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package cmd
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import (
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"flag"
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"fmt"
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"os"
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"testing"
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specs "github.com/opencontainers/runtime-spec/specs-go"
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"github.com/syndtr/gocapability/capability"
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"gvisor.dev/gvisor/pkg/log"
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"gvisor.dev/gvisor/pkg/test/testutil"
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"gvisor.dev/gvisor/runsc/boot"
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"gvisor.dev/gvisor/runsc/container"
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"gvisor.dev/gvisor/runsc/specutils"
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)
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func init() {
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log.SetLevel(log.Debug)
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if err := testutil.ConfigureExePath(); err != nil {
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panic(err.Error())
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}
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}
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func checkProcessCaps(pid int, wantCaps *specs.LinuxCapabilities) error {
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curCaps, err := capability.NewPid2(pid)
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if err != nil {
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return fmt.Errorf("capability.NewPid2(%d) failed: %v", pid, err)
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}
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if err := curCaps.Load(); err != nil {
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return fmt.Errorf("unable to load capabilities: %v", err)
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}
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fmt.Printf("Capabilities (PID: %d): %v\n", pid, curCaps)
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for _, c := range allCapTypes {
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if err := checkCaps(c, curCaps, wantCaps); err != nil {
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return err
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}
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}
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return nil
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}
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func checkCaps(which capability.CapType, curCaps capability.Capabilities, wantCaps *specs.LinuxCapabilities) error {
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wantNames := getCaps(which, wantCaps)
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for name, c := range capFromName {
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want := specutils.ContainsStr(wantNames, name)
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got := curCaps.Get(which, c)
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if want != got {
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if want {
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return fmt.Errorf("capability %v:%s should be set", which, name)
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}
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return fmt.Errorf("capability %v:%s should NOT be set", which, name)
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}
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}
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return nil
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}
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func TestCapabilities(t *testing.T) {
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stop := testutil.StartReaper()
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defer stop()
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spec := testutil.NewSpecWithArgs("/bin/sleep", "10000")
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caps := []string{
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"CAP_CHOWN",
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"CAP_SYS_PTRACE", // ptrace is added due to the platform choice.
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}
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spec.Process.Capabilities = &specs.LinuxCapabilities{
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Permitted: caps,
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Bounding: caps,
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Effective: caps,
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Inheritable: caps,
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}
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conf := testutil.TestConfig(t)
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// Use --network=host to make sandbox use spec's capabilities.
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conf.Network = boot.NetworkHost
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_, bundleDir, cleanup, err := testutil.SetupContainer(spec, conf)
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if err != nil {
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t.Fatalf("error setting up container: %v", err)
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}
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defer cleanup()
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// Create and start the container.
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args := container.Args{
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ID: testutil.RandomContainerID(),
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Spec: spec,
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BundleDir: bundleDir,
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}
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c, err := container.New(conf, args)
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if err != nil {
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t.Fatalf("error creating container: %v", err)
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}
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defer c.Destroy()
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if err := c.Start(conf); err != nil {
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t.Fatalf("error starting container: %v", err)
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}
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// Check that sandbox and gofer have the proper capabilities.
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if err := checkProcessCaps(c.Sandbox.Pid, spec.Process.Capabilities); err != nil {
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t.Error(err)
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}
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if err := checkProcessCaps(c.GoferPid, goferCaps); err != nil {
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t.Error(err)
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}
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}
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func TestMain(m *testing.M) {
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flag.Parse()
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specutils.MaybeRunAsRoot()
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os.Exit(m.Run())
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}
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