aboutsummaryrefslogtreecommitdiff
path: root/tests/cli/cli_test.go
blob: bd22a4320e798bc24ec770cea15c62d834d1a96c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
package cli

// Test CLI operations like "-init", "-password" etc

import (
	"fmt"
	"io/ioutil"
	"os"
	"os/exec"
	"syscall"
	"testing"
	"time"

	"github.com/rfjakob/gocryptfs/internal/configfile"
	"github.com/rfjakob/gocryptfs/internal/exitcodes"

	"github.com/rfjakob/gocryptfs/tests/test_helpers"
)

var testPw = []byte("test")

func TestMain(m *testing.M) {
	test_helpers.ResetTmpDir(false)
	before := test_helpers.ListFds()
	r := m.Run()
	after := test_helpers.ListFds()
	if len(before) != len(after) {
		fmt.Printf("fd leak? before, after:\n%v\n%v\n", before, after)
		os.Exit(1)
	}
	os.Exit(r)
}

// Test -init flag
func TestInit(t *testing.T) {
	dir := test_helpers.InitFS(t)
	_, c, err := configfile.LoadAndDecrypt(dir+"/"+configfile.ConfDefaultName, testPw)
	if err != nil {
		t.Fatal(err)
	}
	if c.IsFeatureFlagSet(configfile.FlagAESSIV) {
		t.Error("AESSIV flag should not be set")
	}
}

// Test -init with -devrandom flag
func TestInitDevRandom(t *testing.T) {
	test_helpers.InitFS(t, "-devrandom")
}

// Test -init with -aessiv
func TestInitAessiv(t *testing.T) {
	dir := test_helpers.InitFS(t, "-aessiv")
	_, c, err := configfile.LoadAndDecrypt(dir+"/"+configfile.ConfDefaultName, testPw)
	if err != nil {
		t.Fatal(err)
	}
	if !c.IsFeatureFlagSet(configfile.FlagAESSIV) {
		t.Error("AESSIV flag should be set but is not")
	}
}

// Test -init with -reverse
func TestInitReverse(t *testing.T) {
	dir := test_helpers.InitFS(t, "-reverse")
	_, c, err := configfile.LoadAndDecrypt(dir+"/"+configfile.ConfReverseName, testPw)
	if err != nil {
		t.Fatal(err)
	}
	if !c.IsFeatureFlagSet(configfile.FlagAESSIV) {
		t.Error("AESSIV flag should be set but is not")
	}
}

func testPasswd(t *testing.T, dir string, extraArgs ...string) {
	// Change password using "-extpass"
	args := []string{"-q", "-passwd", "-extpass", "echo test"}
	args = append(args, extraArgs...)
	args = append(args, dir)
	cmd := exec.Command(test_helpers.GocryptfsBinary, args...)
	cmd.Stdout = os.Stdout
	cmd.Stderr = os.Stderr
	err := cmd.Run()
	if err != nil {
		t.Error(err)
	}
	// Change password using stdin
	args = []string{"-q", "-passwd"}
	args = append(args, extraArgs...)
	args = append(args, dir)
	cmd = exec.Command(test_helpers.GocryptfsBinary, args...)
	cmd.Stdout = os.Stdout
	cmd.Stderr = os.Stderr
	p, err := cmd.StdinPipe()
	if err != nil {
		t.Fatal(err)
	}
	err = cmd.Start()
	if err != nil {
		t.Error(err)
	}
	// Old password
	p.Write([]byte("test\n"))
	// New password
	p.Write([]byte("newpasswd\n"))
	p.Close()
	err = cmd.Wait()
	if err != nil {
		t.Error(err)
	}
}

// Test -passwd flag
func TestPasswd(t *testing.T) {
	// Create FS
	dir := test_helpers.InitFS(t)
	mnt := dir + ".mnt"
	// Add content
	test_helpers.MountOrFatal(t, dir, mnt, "-extpass", "echo test")
	file1 := mnt + "/file1"
	err := ioutil.WriteFile(file1, []byte("somecontent"), 0600)
	if err != nil {
		t.Fatal(err)
	}
	err = test_helpers.UnmountErr(mnt)
	if err != nil {
		t.Fatal(err)
	}
	// Change password to "newpasswd"
	testPasswd(t, dir)
	// Mount and verify
	test_helpers.MountOrFatal(t, dir, mnt, "-extpass", "echo newpasswd")
	content, err := ioutil.ReadFile(file1)
	if err != nil {
		t.Error(err)
	} else if string(content) != "somecontent" {
		t.Errorf("wrong content: %q", string(content))
	}
	err = test_helpers.UnmountErr(mnt)
	if err != nil {
		t.Fatal(err)
	}
}

// Test -passwd with -masterkey
func TestPasswdMasterkey(t *testing.T) {
	// Create FS
	dir := test_helpers.InitFS(t)
	// Overwrite with config with known master key
	conf, err := ioutil.ReadFile("gocryptfs.conf.b9e5ba23")
	if err != nil {
		t.Fatal(err)
	}
	syscall.Unlink(dir + "/gocryptfs.conf")
	err = ioutil.WriteFile(dir+"/gocryptfs.conf", conf, 0600)
	if err != nil {
		t.Fatal(err)
	}
	// Add content
	mnt := dir + ".mnt"
	test_helpers.MountOrFatal(t, dir, mnt, "-extpass", "echo test")
	file1 := mnt + "/file1"
	err = ioutil.WriteFile(file1, []byte("somecontent"), 0600)
	if err != nil {
		t.Fatal(err)
	}
	test_helpers.UnmountPanic(mnt)
	// Change password using stdin
	args := []string{"-q", "-passwd", "-masterkey",
		"b9e5ba23-981a22b8-c8d790d8-627add29-f680513f-b7b7035f-d203fb83-21d82205"}
	args = append(args, dir)
	cmd := exec.Command(test_helpers.GocryptfsBinary, args...)
	cmd.Stdout = os.Stdout
	cmd.Stderr = os.Stderr
	p, err := cmd.StdinPipe()
	if err != nil {
		t.Fatal(err)
	}
	err = cmd.Start()
	if err != nil {
		t.Error(err)
	}
	// New password
	p.Write([]byte("newpasswd\n"))
	p.Close()
	err = cmd.Wait()
	if err != nil {
		t.Error(err)
	}
	// Mount and verify
	test_helpers.MountOrFatal(t, dir, mnt, "-extpass", "echo newpasswd")
	content, err := ioutil.ReadFile(file1)
	if err != nil {
		t.Error(err)
	} else if string(content) != "somecontent" {
		t.Errorf("wrong content: %q", string(content))
	}
	test_helpers.UnmountPanic(mnt)
}

// Test -passwd with -reverse
func TestPasswdReverse(t *testing.T) {
	// Create FS
	dir := test_helpers.InitFS(t, "-reverse")
	testPasswd(t, dir, "-reverse")
}

// Test -init & -config flag
func TestInitConfig(t *testing.T) {
	config := test_helpers.TmpDir + "/TestInitConfig.conf"
	dir := test_helpers.InitFS(t, "-config="+config)

	_, err := os.Stat(config)
	if err != nil {
		t.Fatal(err)
	}

	// Test -passwd & -config
	cmd2 := exec.Command(test_helpers.GocryptfsBinary, "-q", "-passwd", "-extpass", "echo test",
		"-config", config, dir)
	cmd2.Stdout = os.Stdout
	cmd2.Stderr = os.Stderr
	err = cmd2.Run()
	if err != nil {
		t.Error(err)
	}
}

// Test -ro
func TestRo(t *testing.T) {
	dir := test_helpers.InitFS(t)
	mnt := dir + ".mnt"
	test_helpers.MountOrFatal(t, dir, mnt, "-ro", "-extpass=echo test")
	defer test_helpers.UnmountPanic(mnt)

	file := mnt + "/file"
	err := os.Mkdir(file, 0777)
	if err == nil {
		t.Errorf("Mkdir should have failed")
	}
	_, err = os.Create(file)
	if err == nil {
		t.Errorf("Create should have failed")
	}
}

// Test "-nonempty"
func TestNonempty(t *testing.T) {
	dir := test_helpers.InitFS(t)
	mnt := dir + ".mnt"
	err := os.Mkdir(mnt, 0700)
	if err != nil {
		t.Fatal(err)
	}
	err = ioutil.WriteFile(mnt+"/somefile", []byte("xyz"), 0600)
	if err != nil {
		t.Fatal(err)
	}
	err = test_helpers.Mount(dir, mnt, false, "-extpass=echo test")
	if err == nil {
		t.Errorf("Mounting over a file should fail per default")
	}
	// Should work with "-nonempty"
	test_helpers.MountOrFatal(t, dir, mnt, "-nonempty", "-extpass=echo test")
	test_helpers.UnmountPanic(mnt)
}

// Test "mountpoint shadows cipherdir" handling
func TestShadows(t *testing.T) {
	mnt := test_helpers.InitFS(t)
	cipher := mnt + ".cipher"
	err := os.Rename(mnt, cipher)
	if err != nil {
		t.Fatal(err)
	}
	// This should work
	// (note that MountOrFatal creates "mnt" again)
	test_helpers.MountOrFatal(t, cipher, mnt, "-extpass=echo test")
	test_helpers.UnmountPanic(mnt)
	cipher2 := mnt + "/cipher"
	err = os.Rename(cipher, cipher2)
	if err != nil {
		t.Fatal(err)
	}
	// This should fail
	err = test_helpers.Mount(cipher2, mnt, false, "-extpass=echo test")
	if err == nil {
		t.Errorf("Should have failed")
	}
}

// TestInitTrailingGarbage verfies that gocryptfs exits with an error if we
// pass additional data after the password.
func TestInitTrailingGarbage(t *testing.T) {
	table := []struct {
		pw            string
		closeStdin    bool
		expectSuccess bool
	}{
		{"foo\n", false, true},
		{"foo", true, true},
		{"foo\n", true, true},
		{"foo\n\n", false, false},
		{"foo\nbar", false, false},
		{"foo\n\n", true, false},
		{"foo\nbar", true, false},
	}
	for _, row := range table {
		dir, err := ioutil.TempDir(test_helpers.TmpDir, "")
		if err != nil {
			t.Fatal(err)
		}
		cmd := exec.Command(test_helpers.GocryptfsBinary, "-q", "-init", "-scryptn=10", dir)
		childStdin, err := cmd.StdinPipe()
		if err != nil {
			t.Fatal(err)
		}
		err = cmd.Start()
		if err != nil {
			t.Fatal(err)
		}
		childStdin.Write([]byte(row.pw))
		if row.closeStdin {
			childStdin.Close()
		}
		err = cmd.Wait()
		success := (err == nil)
		if success == true && row.expectSuccess == false {
			t.Errorf("pw=%q should have failed, but succeeded", row.pw)
		} else if success == false && row.expectSuccess == true {
			t.Errorf("pw=%q should have succeeded, but failed", row.pw)
		}
	}
}

// TestMountPasswordIncorrect makes sure the correct exit code is used when the password
// was incorrect while mounting
func TestMountPasswordIncorrect(t *testing.T) {
	cDir := test_helpers.InitFS(t) // Create filesystem with password "test"
	pDir := cDir + ".mnt"
	err := test_helpers.Mount(cDir, pDir, false, "-extpass", "echo WRONG", "-wpanic=false")
	exitCode := test_helpers.ExtractCmdExitCode(err)
	if exitCode != exitcodes.PasswordIncorrect {
		t.Errorf("want=%d, got=%d", exitcodes.PasswordIncorrect, exitCode)
	}
}

// TestPasswdPasswordIncorrect makes sure the correct exit code is used when the password
// was incorrect while changing the password
func TestPasswdPasswordIncorrect(t *testing.T) {
	cDir := test_helpers.InitFS(t) // Create filesystem with password "test"
	// Change password
	cmd := exec.Command(test_helpers.GocryptfsBinary, "-passwd", cDir)
	childStdin, err := cmd.StdinPipe()
	if err != nil {
		t.Fatal(err)
	}
	err = cmd.Start()
	if err != nil {
		t.Fatal(err)
	}
	_, err = childStdin.Write([]byte("WRONGPASSWORD\nNewPassword"))
	if err != nil {
		t.Fatal(err)
	}
	err = childStdin.Close()
	if err != nil {
		t.Fatal(err)
	}
	err = cmd.Wait()
	exitCode := test_helpers.ExtractCmdExitCode(err)
	if exitCode != exitcodes.PasswordIncorrect {
		t.Errorf("want=%d, got=%d", exitcodes.PasswordIncorrect, exitCode)
	}
}

// Check that we correctly background on mount and close stderr and stdout.
// Something like
//   gocryptfs a b | cat
// must not hang ( https://github.com/rfjakob/gocryptfs/issues/130 ).
func TestMountBackground(t *testing.T) {
	dir := test_helpers.InitFS(t)
	mnt := dir + ".mnt"
	err := os.Mkdir(mnt, 0700)
	if err != nil {
		t.Fatal(err)
	}
	// Manually create a pipe pair and connect the child's stdout and stderr
	// to it. We cannot use StdoutPipe because that will close the pipe
	// when the child forks away.
	pr, pw, err := os.Pipe()
	if err != nil {
		t.Fatal(err)
	}
	args := []string{"-extpass", "echo test", dir, mnt}
	cmd := exec.Command(test_helpers.GocryptfsBinary, args...)
	cmd.Stdout = pw
	cmd.Stderr = pw
	err = cmd.Run()
	if err != nil {
		t.Error(err)
	}
	pw.Close()
	defer test_helpers.UnmountPanic(mnt)
	// Read until we get EOF.
	c1 := make(chan struct{}, 1)
	go func() {
		buf := make([]byte, 1000)
		for {
			_, err = pr.Read(buf)
			// We should get io.EOF when the child closes stdout
			// and stderr.
			if err != nil {
				pr.Close()
				c1 <- struct{}{}
				return
			}
		}
	}()
	select {
	case <-c1:
		return
	case <-time.After(time.Second * 5):
		t.Fatal("timeout")
	}
}

// Test that "gocryptfs -init -info CIPHERDIR" returns an error to the
// user. Only one operation flag is allowed.
func TestMultipleOperationFlags(t *testing.T) {
	// Test all combinations
	opFlags := []string{"-init", "-info", "-passwd", "-fsck"}
	for _, flag1 := range opFlags {
		var flag2 string
		for _, flag2 = range opFlags {
			if flag1 == flag2 {
				continue
			}
			args := []string{flag1, flag2, "/tmp"}
			//t.Logf("testing %v", args)
			cmd := exec.Command(test_helpers.GocryptfsBinary, args...)
			err := cmd.Run()
			exitCode := test_helpers.ExtractCmdExitCode(err)
			if exitCode != exitcodes.Usage {
				t.Fatalf("this should have failed with code %d, but returned %d",
					exitcodes.Usage, exitCode)
			}
		}
	}
}

func TestNoexec(t *testing.T) {
	dir := test_helpers.InitFS(t)
	mnt := dir + ".mnt"
	err := os.Mkdir(mnt, 0700)
	if err != nil {
		t.Fatal(err)
	}
	test_helpers.MountOrFatal(t, dir, mnt, "-extpass=echo test", "-noexec")
	defer test_helpers.UnmountPanic(mnt)
	sh := mnt + "/x.sh"
	content := `#!/bin/bash
echo hello
`
	err = ioutil.WriteFile(sh, []byte(content), 0755)
	if err != nil {
		t.Fatal(err)
	}
	err = exec.Command(sh).Run()
	exitCode := test_helpers.ExtractCmdExitCode(err)
	if exitCode != int(syscall.EACCES) {
		t.Errorf("got exitcode %d instead of EPERM (%d)", exitCode, syscall.EPERM)
	}
}

// Test that a missing argument to "-o" triggers exit code 1.
// See also cli_args_test.go for comprehensive tests of "-o" parsing.
func TestMissingOArg(t *testing.T) {
	cmd := exec.Command(test_helpers.GocryptfsBinary, "foo", "bar", "-o")
	err := cmd.Run()
	exitCode := test_helpers.ExtractCmdExitCode(err)
	if exitCode != exitcodes.Usage {
		t.Fatalf("this should have failed with code %d, but returned %d",
			exitcodes.Usage, exitCode)
	}
}

// -exclude must return an error in forward mode
func TestExcludeForward(t *testing.T) {
	dir := test_helpers.InitFS(t)
	mnt := dir + ".mnt"
	err := test_helpers.Mount(dir, mnt, false, "-extpass", "echo test", "-exclude", "foo")
	if err == nil {
		t.Errorf("-exclude in forward mode should fail")
	}
	t.Log(err)
}

// Check that the config file can be read from a named pipe.
// Make sure bug https://github.com/rfjakob/gocryptfs/issues/258 does not come
// back.
func TestConfigPipe(t *testing.T) {
	dir := test_helpers.InitFS(t)
	mnt := dir + ".mnt"
	err := os.Mkdir(mnt, 0700)
	if err != nil {
		t.Fatal(err)
	}
	bashLine := fmt.Sprintf("%s -q -extpass \"echo test\" -config <(cat %s/gocryptfs.conf) %s %s", test_helpers.GocryptfsBinary, dir, dir, mnt)
	cmd := exec.Command("bash", "-c", bashLine)
	cmd.Stdout = os.Stdout
	cmd.Stderr = os.Stdout
	err = cmd.Run()
	exitCode := test_helpers.ExtractCmdExitCode(err)
	if exitCode != 0 {
		t.Errorf("bash command\n%q\nresulted in exit code %d", bashLine, exitCode)
		return
	}
	test_helpers.UnmountPanic(mnt)
}