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moby--moby/volume/local/local_test.go
Sebastian Höffner 9a7298a3e6
volume: mask password in cifs mount error messages
In managed environment (such as Nomad clusters), users are not always
supposed to see credentials used to mount volumes.
However, if errors occur (most commonly, misspelled mount paths), the
error messages will output the full mount command -- which might contain
a username and a password in the case of CIFS mounts.

This PR detects password=... when error messages are wrapped and masks
them with ********.

Closes https://github.com/fsouza/go-dockerclient/issues/905.
Closes https://github.com/hashicorp/nomad/issues/12296.
Closes https://github.com/moby/moby/issues/43596.

Signed-off-by: Sebastian Höffner <sebastian.hoeffner@mevis.fraunhofer.de>
2022-05-14 02:45:06 +02:00

353 lines
8.1 KiB
Go

package local // import "github.com/docker/docker/volume/local"
import (
"os"
"path/filepath"
"reflect"
"runtime"
"strings"
"testing"
"github.com/docker/docker/pkg/idtools"
"github.com/moby/sys/mountinfo"
"gotest.tools/v3/skip"
)
func TestGetAddress(t *testing.T) {
cases := map[string]string{
"addr=11.11.11.1": "11.11.11.1",
" ": "",
"addr=": "",
"addr=2001:db8::68": "2001:db8::68",
}
for name, success := range cases {
v := getAddress(name)
if v != success {
t.Errorf("Test case failed for %s actual: %s expected : %s", name, v, success)
}
}
}
func TestGetPassword(t *testing.T) {
cases := map[string]string{
"password=secret": "secret",
" ": "",
"password=": "",
"password=Tr0ub4dor&3": "Tr0ub4dor&3",
"password=correcthorsebatterystaple": "correcthorsebatterystaple",
"username=moby,password=secret": "secret",
"username=moby,password=secret,addr=11": "secret",
"username=moby,addr=11": "",
}
for optsstring, success := range cases {
v := getPassword(optsstring)
if v != success {
t.Errorf("Test case failed for %s actual: %s expected : %s", optsstring, v, success)
}
}
}
func TestRemove(t *testing.T) {
skip.If(t, runtime.GOOS == "windows", "FIXME: investigate why this test fails on CI")
rootDir, err := os.MkdirTemp("", "local-volume-test")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(rootDir)
r, err := New(rootDir, idtools.Identity{UID: os.Geteuid(), GID: os.Getegid()})
if err != nil {
t.Fatal(err)
}
vol, err := r.Create("testing", nil)
if err != nil {
t.Fatal(err)
}
if err := r.Remove(vol); err != nil {
t.Fatal(err)
}
vol, err = r.Create("testing2", nil)
if err != nil {
t.Fatal(err)
}
if err := os.RemoveAll(vol.Path()); err != nil {
t.Fatal(err)
}
if err := r.Remove(vol); err != nil {
t.Fatal(err)
}
if _, err := os.Stat(vol.Path()); err != nil && !os.IsNotExist(err) {
t.Fatal("volume dir not removed")
}
if l, _ := r.List(); len(l) != 0 {
t.Fatal("expected there to be no volumes")
}
}
func TestInitializeWithVolumes(t *testing.T) {
rootDir, err := os.MkdirTemp("", "local-volume-test")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(rootDir)
r, err := New(rootDir, idtools.Identity{UID: os.Geteuid(), GID: os.Getegid()})
if err != nil {
t.Fatal(err)
}
vol, err := r.Create("testing", nil)
if err != nil {
t.Fatal(err)
}
r, err = New(rootDir, idtools.Identity{UID: os.Geteuid(), GID: os.Getegid()})
if err != nil {
t.Fatal(err)
}
v, err := r.Get(vol.Name())
if err != nil {
t.Fatal(err)
}
if v.Path() != vol.Path() {
t.Fatal("expected to re-initialize root with existing volumes")
}
}
func TestCreate(t *testing.T) {
rootDir, err := os.MkdirTemp("", "local-volume-test")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(rootDir)
r, err := New(rootDir, idtools.Identity{UID: os.Geteuid(), GID: os.Getegid()})
if err != nil {
t.Fatal(err)
}
cases := map[string]bool{
"name": true,
"name-with-dash": true,
"name_with_underscore": true,
"name/with/slash": false,
"name/with/../../slash": false,
"./name": false,
"../name": false,
"./": false,
"../": false,
"~": false,
".": false,
"..": false,
"...": false,
}
for name, success := range cases {
v, err := r.Create(name, nil)
if success {
if err != nil {
t.Fatal(err)
}
if v.Name() != name {
t.Fatalf("Expected volume with name %s, got %s", name, v.Name())
}
} else {
if err == nil {
t.Fatalf("Expected error creating volume with name %s, got nil", name)
}
}
}
_, err = New(rootDir, idtools.Identity{UID: os.Geteuid(), GID: os.Getegid()})
if err != nil {
t.Fatal(err)
}
}
func TestValidateName(t *testing.T) {
r := &Root{}
names := map[string]bool{
"x": false,
"/testvol": false,
"thing.d": true,
"hello-world": true,
"./hello": false,
".hello": false,
}
for vol, expected := range names {
err := r.validateName(vol)
if expected && err != nil {
t.Fatalf("expected %s to be valid got %v", vol, err)
}
if !expected && err == nil {
t.Fatalf("expected %s to be invalid", vol)
}
}
}
func TestCreateWithOpts(t *testing.T) {
skip.If(t, runtime.GOOS == "windows")
skip.If(t, os.Getuid() != 0, "requires mounts")
rootDir, err := os.MkdirTemp("", "local-volume-test")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(rootDir)
r, err := New(rootDir, idtools.Identity{UID: os.Geteuid(), GID: os.Getegid()})
if err != nil {
t.Fatal(err)
}
if _, err := r.Create("test", map[string]string{"invalidopt": "notsupported"}); err == nil {
t.Fatal("expected invalid opt to cause error")
}
vol, err := r.Create("test", map[string]string{"device": "tmpfs", "type": "tmpfs", "o": "size=1m,uid=1000"})
if err != nil {
t.Fatal(err)
}
v := vol.(*localVolume)
dir, err := v.Mount("1234")
if err != nil {
t.Fatal(err)
}
defer func() {
if err := v.Unmount("1234"); err != nil {
t.Fatal(err)
}
}()
mountInfos, err := mountinfo.GetMounts(mountinfo.SingleEntryFilter(dir))
if err != nil {
t.Fatal(err)
}
if len(mountInfos) != 1 {
t.Fatalf("expected 1 mount, found %d: %+v", len(mountInfos), mountInfos)
}
info := mountInfos[0]
t.Logf("%+v", info)
if info.FSType != "tmpfs" {
t.Fatalf("expected tmpfs mount, got %q", info.FSType)
}
if info.Source != "tmpfs" {
t.Fatalf("expected tmpfs mount, got %q", info.Source)
}
if !strings.Contains(info.VFSOptions, "uid=1000") {
t.Fatalf("expected mount info to have uid=1000: %q", info.VFSOptions)
}
if !strings.Contains(info.VFSOptions, "size=1024k") {
t.Fatalf("expected mount info to have size=1024k: %q", info.VFSOptions)
}
if v.active.count != 1 {
t.Fatalf("Expected active mount count to be 1, got %d", v.active.count)
}
// test double mount
if _, err := v.Mount("1234"); err != nil {
t.Fatal(err)
}
if v.active.count != 2 {
t.Fatalf("Expected active mount count to be 2, got %d", v.active.count)
}
if err := v.Unmount("1234"); err != nil {
t.Fatal(err)
}
if v.active.count != 1 {
t.Fatalf("Expected active mount count to be 1, got %d", v.active.count)
}
mounted, err := mountinfo.Mounted(v.path)
if err != nil {
t.Fatal(err)
}
if !mounted {
t.Fatal("expected mount to still be active")
}
r, err = New(rootDir, idtools.Identity{UID: 0, GID: 0})
if err != nil {
t.Fatal(err)
}
v2, exists := r.volumes["test"]
if !exists {
t.Fatal("missing volume on restart")
}
if !reflect.DeepEqual(v.opts, v2.opts) {
t.Fatal("missing volume options on restart")
}
}
func TestRelaodNoOpts(t *testing.T) {
rootDir, err := os.MkdirTemp("", "volume-test-reload-no-opts")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(rootDir)
r, err := New(rootDir, idtools.Identity{UID: os.Geteuid(), GID: os.Getegid()})
if err != nil {
t.Fatal(err)
}
if _, err := r.Create("test1", nil); err != nil {
t.Fatal(err)
}
if _, err := r.Create("test2", nil); err != nil {
t.Fatal(err)
}
// make sure a file with `null` (.e.g. empty opts map from older daemon) is ok
if err := os.WriteFile(filepath.Join(rootDir, "test2"), []byte("null"), 0600); err != nil {
t.Fatal(err)
}
if _, err := r.Create("test3", nil); err != nil {
t.Fatal(err)
}
// make sure an empty opts file doesn't break us too
if err := os.WriteFile(filepath.Join(rootDir, "test3"), nil, 0600); err != nil {
t.Fatal(err)
}
if _, err := r.Create("test4", map[string]string{}); err != nil {
t.Fatal(err)
}
r, err = New(rootDir, idtools.Identity{UID: os.Geteuid(), GID: os.Getegid()})
if err != nil {
t.Fatal(err)
}
for _, name := range []string{"test1", "test2", "test3", "test4"} {
v, err := r.Get(name)
if err != nil {
t.Fatal(err)
}
lv, ok := v.(*localVolume)
if !ok {
t.Fatalf("expected *localVolume got: %v", reflect.TypeOf(v))
}
if lv.opts != nil {
t.Fatalf("expected opts to be nil, got: %v", lv.opts)
}
if _, err := lv.Mount("1234"); err != nil {
t.Fatal(err)
}
}
}