647 lines
16 KiB
Go
647 lines
16 KiB
Go
package cli
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// Test CLI operations like "-init", "-password" etc
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import (
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"fmt"
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"io/ioutil"
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"os"
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"os/exec"
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"strconv"
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"syscall"
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"testing"
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"time"
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"github.com/rfjakob/gocryptfs/internal/configfile"
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"github.com/rfjakob/gocryptfs/internal/exitcodes"
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"github.com/rfjakob/gocryptfs/tests/test_helpers"
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)
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var testPw = []byte("test")
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func TestMain(m *testing.M) {
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test_helpers.ResetTmpDir(false)
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before := test_helpers.ListFds(0, "")
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r := m.Run()
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after := test_helpers.ListFds(0, "")
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if len(before) != len(after) {
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fmt.Printf("fd leak in test process? before, after:\n%v\n%v\n", before, after)
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os.Exit(1)
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}
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os.Exit(r)
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}
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// Test -init flag
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func TestInit(t *testing.T) {
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dir := test_helpers.InitFS(t)
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_, c, err := configfile.LoadAndDecrypt(dir+"/"+configfile.ConfDefaultName, testPw)
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if err != nil {
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t.Fatal(err)
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}
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if c.IsFeatureFlagSet(configfile.FlagAESSIV) {
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t.Error("AESSIV flag should not be set")
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}
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}
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// Test that gocryptfs.conf and gocryptfs.diriv are there with the expected
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// permissions after -init
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func TestInitFilePerms(t *testing.T) {
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dir := test_helpers.InitFS(t)
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var st syscall.Stat_t
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syscall.Stat(dir+"/gocryptfs.conf", &st)
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perms := st.Mode & 0777
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if perms != 0400 {
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t.Errorf("Wrong permissions for gocryptfs.conf: %#o", perms)
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}
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st = syscall.Stat_t{}
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syscall.Stat(dir+"/gocryptfs.diriv", &st)
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perms = st.Mode & 0777
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// From v1.7.1, these are created with 0440 permissions, see
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// https://github.com/rfjakob/gocryptfs/issues/387
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if perms != 0440 {
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t.Errorf("Wrong permissions for gocryptfs.diriv: %#o", perms)
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}
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}
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// Test -init with -devrandom flag
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func TestInitDevRandom(t *testing.T) {
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test_helpers.InitFS(t, "-devrandom")
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}
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// Test -init with -aessiv
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func TestInitAessiv(t *testing.T) {
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dir := test_helpers.InitFS(t, "-aessiv")
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_, c, err := configfile.LoadAndDecrypt(dir+"/"+configfile.ConfDefaultName, testPw)
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if err != nil {
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t.Fatal(err)
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}
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if !c.IsFeatureFlagSet(configfile.FlagAESSIV) {
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t.Error("AESSIV flag should be set but is not")
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}
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}
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// Test -init with -reverse
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func TestInitReverse(t *testing.T) {
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dir := test_helpers.InitFS(t, "-reverse")
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_, c, err := configfile.LoadAndDecrypt(dir+"/"+configfile.ConfReverseName, testPw)
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if err != nil {
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t.Fatal(err)
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}
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if !c.IsFeatureFlagSet(configfile.FlagAESSIV) {
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t.Error("AESSIV flag should be set but is not")
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}
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}
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// testPasswd changes the password from "test" to "test" using
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// the -extpass method, then from "test" to "newpasswd" using the
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// stdin method.
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func testPasswd(t *testing.T, dir string, extraArgs ...string) {
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// Change password using "-extpass"
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args := []string{"-q", "-passwd", "-extpass", "echo test"}
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args = append(args, extraArgs...)
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args = append(args, dir)
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cmd := exec.Command(test_helpers.GocryptfsBinary, args...)
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cmd.Stdout = os.Stdout
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cmd.Stderr = os.Stderr
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err := cmd.Run()
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if err != nil {
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t.Error(err)
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}
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// Change password using stdin
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args = []string{"-q", "-passwd"}
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args = append(args, extraArgs...)
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args = append(args, dir)
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cmd = exec.Command(test_helpers.GocryptfsBinary, args...)
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cmd.Stdout = os.Stdout
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cmd.Stderr = os.Stderr
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p, err := cmd.StdinPipe()
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if err != nil {
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t.Fatal(err)
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}
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err = cmd.Start()
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if err != nil {
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t.Error(err)
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}
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// Old password
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p.Write([]byte("test\n"))
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// New password
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p.Write([]byte("newpasswd\n"))
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p.Close()
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err = cmd.Wait()
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if err != nil {
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t.Error(err)
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}
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}
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// Test -passwd flag
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func TestPasswd(t *testing.T) {
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// Create FS
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dir := test_helpers.InitFS(t)
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mnt := dir + ".mnt"
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// Add content
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test_helpers.MountOrFatal(t, dir, mnt, "-extpass", "echo test")
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file1 := mnt + "/file1"
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err := ioutil.WriteFile(file1, []byte("somecontent"), 0600)
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if err != nil {
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t.Fatal(err)
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}
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err = test_helpers.UnmountErr(mnt)
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if err != nil {
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t.Fatal(err)
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}
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// Change password to "newpasswd"
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testPasswd(t, dir)
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// Mount and verify
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test_helpers.MountOrFatal(t, dir, mnt, "-extpass", "echo newpasswd")
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content, err := ioutil.ReadFile(file1)
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if err != nil {
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t.Error(err)
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} else if string(content) != "somecontent" {
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t.Errorf("wrong content: %q", string(content))
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}
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err = test_helpers.UnmountErr(mnt)
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if err != nil {
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t.Fatal(err)
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}
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}
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// Test -passwd with -masterkey
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func TestPasswdMasterkey(t *testing.T) {
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// Create FS
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dir := test_helpers.InitFS(t)
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// Overwrite with config with known master key
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conf, err := ioutil.ReadFile("gocryptfs.conf.b9e5ba23")
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if err != nil {
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t.Fatal(err)
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}
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syscall.Unlink(dir + "/gocryptfs.conf")
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err = ioutil.WriteFile(dir+"/gocryptfs.conf", conf, 0600)
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if err != nil {
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t.Fatal(err)
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}
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// Add content
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mnt := dir + ".mnt"
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test_helpers.MountOrFatal(t, dir, mnt, "-extpass", "echo test")
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file1 := mnt + "/file1"
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err = ioutil.WriteFile(file1, []byte("somecontent"), 0600)
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if err != nil {
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t.Fatal(err)
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}
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test_helpers.UnmountPanic(mnt)
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// Change password using stdin
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args := []string{"-q", "-passwd", "-masterkey",
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"b9e5ba23-981a22b8-c8d790d8-627add29-f680513f-b7b7035f-d203fb83-21d82205"}
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args = append(args, dir)
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cmd := exec.Command(test_helpers.GocryptfsBinary, args...)
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cmd.Stdout = os.Stdout
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cmd.Stderr = os.Stderr
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p, err := cmd.StdinPipe()
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if err != nil {
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t.Fatal(err)
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}
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err = cmd.Start()
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if err != nil {
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t.Error(err)
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}
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// New password
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p.Write([]byte("newpasswd\n"))
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p.Close()
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err = cmd.Wait()
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if err != nil {
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t.Error(err)
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}
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// Mount and verify
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test_helpers.MountOrFatal(t, dir, mnt, "-extpass", "echo newpasswd")
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content, err := ioutil.ReadFile(file1)
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if err != nil {
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t.Error(err)
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} else if string(content) != "somecontent" {
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t.Errorf("wrong content: %q", string(content))
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}
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test_helpers.UnmountPanic(mnt)
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}
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// Test -passwd with -reverse
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func TestPasswdReverse(t *testing.T) {
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// Create FS
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dir := test_helpers.InitFS(t, "-reverse")
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testPasswd(t, dir, "-reverse")
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}
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// Test -passwd with -scryptn
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func TestPasswdScryptn(t *testing.T) {
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dir := test_helpers.InitFS(t)
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cf, err := configfile.Load(dir + "/gocryptfs.conf")
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if err != nil {
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t.Fatal(err)
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}
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testPasswd(t, dir, "-scryptn", strconv.Itoa(cf.ScryptObject.LogN()+1))
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cf2, err := configfile.Load(dir + "/gocryptfs.conf")
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if err != nil {
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t.Fatal(err)
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}
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if cf2.ScryptObject.LogN() != cf.ScryptObject.LogN()+1 {
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t.Errorf("wrong logN value %d", cf2.ScryptObject.LogN())
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}
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}
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// Test -init & -config flag
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func TestInitConfig(t *testing.T) {
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config := test_helpers.TmpDir + "/TestInitConfig.conf"
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dir := test_helpers.InitFS(t, "-config="+config)
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_, err := os.Stat(config)
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if err != nil {
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t.Fatal(err)
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}
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// Test -passwd & -config
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cmd2 := exec.Command(test_helpers.GocryptfsBinary, "-q", "-passwd", "-extpass", "echo test",
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"-config", config, dir)
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cmd2.Stdout = os.Stdout
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cmd2.Stderr = os.Stderr
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err = cmd2.Run()
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if err != nil {
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t.Error(err)
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}
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}
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// Test -ro
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func TestRo(t *testing.T) {
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dir := test_helpers.InitFS(t)
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mnt := dir + ".mnt"
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test_helpers.MountOrFatal(t, dir, mnt, "-ro", "-extpass=echo test")
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defer test_helpers.UnmountPanic(mnt)
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file := mnt + "/file"
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err := os.Mkdir(file, 0777)
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if err == nil {
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t.Errorf("Mkdir should have failed")
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}
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_, err = os.Create(file)
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if err == nil {
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t.Errorf("Create should have failed")
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}
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}
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// Test "-nonempty"
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func TestNonempty(t *testing.T) {
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dir := test_helpers.InitFS(t)
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mnt := dir + ".mnt"
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err := os.Mkdir(mnt, 0700)
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if err != nil {
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t.Fatal(err)
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}
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err = ioutil.WriteFile(mnt+"/somefile", []byte("xyz"), 0600)
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if err != nil {
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t.Fatal(err)
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}
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err = test_helpers.Mount(dir, mnt, false, "-extpass=echo test")
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if err == nil {
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t.Errorf("Mounting over a file should fail per default")
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}
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// Should work with "-nonempty"
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test_helpers.MountOrFatal(t, dir, mnt, "-nonempty", "-extpass=echo test")
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test_helpers.UnmountPanic(mnt)
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}
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// -nofail should be ignored and the mount should succeed
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func TestNofail(t *testing.T) {
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dir := test_helpers.InitFS(t)
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mnt := dir + ".mnt"
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test_helpers.MountOrFatal(t, dir, mnt, "-nofail", "-extpass=echo test")
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defer test_helpers.UnmountPanic(mnt)
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}
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// Test "mountpoint shadows cipherdir" handling
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func TestShadows(t *testing.T) {
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mnt := test_helpers.InitFS(t)
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cipher := mnt + ".cipher"
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err := os.Rename(mnt, cipher)
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if err != nil {
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t.Fatal(err)
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}
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// This should work
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// (note that MountOrFatal creates "mnt" again)
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test_helpers.MountOrFatal(t, cipher, mnt, "-extpass=echo test")
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test_helpers.UnmountPanic(mnt)
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cipher2 := mnt + "/cipher"
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err = os.Rename(cipher, cipher2)
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if err != nil {
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t.Fatal(err)
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}
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// This should fail
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err = test_helpers.Mount(cipher2, mnt, false, "-extpass=echo test")
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if err == nil {
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t.Errorf("Should have failed")
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}
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}
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// TestMountPasswordIncorrect makes sure the correct exit code is used when the password
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// was incorrect while mounting
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func TestMountPasswordIncorrect(t *testing.T) {
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cDir := test_helpers.InitFS(t) // Create filesystem with password "test"
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pDir := cDir + ".mnt"
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err := test_helpers.Mount(cDir, pDir, false, "-extpass", "echo WRONG", "-wpanic=false")
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exitCode := test_helpers.ExtractCmdExitCode(err)
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if exitCode != exitcodes.PasswordIncorrect {
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t.Errorf("want=%d, got=%d", exitcodes.PasswordIncorrect, exitCode)
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}
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}
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// TestPasswdPasswordIncorrect makes sure the correct exit code is used when the password
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// was incorrect while changing the password
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func TestPasswdPasswordIncorrect(t *testing.T) {
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cDir := test_helpers.InitFS(t) // Create filesystem with password "test"
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// Change password
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cmd := exec.Command(test_helpers.GocryptfsBinary, "-passwd", cDir)
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childStdin, err := cmd.StdinPipe()
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if err != nil {
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t.Fatal(err)
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}
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err = cmd.Start()
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if err != nil {
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t.Fatal(err)
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}
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_, err = childStdin.Write([]byte("WRONGPASSWORD\nNewPassword"))
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if err != nil {
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t.Fatal(err)
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}
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err = childStdin.Close()
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if err != nil {
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t.Fatal(err)
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}
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err = cmd.Wait()
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exitCode := test_helpers.ExtractCmdExitCode(err)
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if exitCode != exitcodes.PasswordIncorrect {
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t.Errorf("want=%d, got=%d", exitcodes.PasswordIncorrect, exitCode)
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}
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}
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// Check that we correctly background on mount and close stderr and stdout.
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// Something like
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// gocryptfs a b | cat
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// must not hang ( https://github.com/rfjakob/gocryptfs/issues/130 ).
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func TestMountBackground(t *testing.T) {
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dir := test_helpers.InitFS(t)
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mnt := dir + ".mnt"
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err := os.Mkdir(mnt, 0700)
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if err != nil {
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t.Fatal(err)
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}
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// Manually create a pipe pair and connect the child's stdout and stderr
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// to it. We cannot use StdoutPipe because that will close the pipe
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// when the child forks away.
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pr, pw, err := os.Pipe()
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if err != nil {
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t.Fatal(err)
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}
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args := []string{"-extpass", "echo test", dir, mnt}
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cmd := exec.Command(test_helpers.GocryptfsBinary, args...)
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cmd.Stdout = pw
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cmd.Stderr = pw
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err = cmd.Run()
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if err != nil {
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t.Error(err)
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}
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pw.Close()
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defer test_helpers.UnmountPanic(mnt)
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// Read until we get EOF.
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c1 := make(chan struct{}, 1)
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go func() {
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buf := make([]byte, 1000)
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for {
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_, err = pr.Read(buf)
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// We should get io.EOF when the child closes stdout
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// and stderr.
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if err != nil {
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pr.Close()
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c1 <- struct{}{}
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return
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}
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}
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}()
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select {
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case <-c1:
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return
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case <-time.After(time.Second * 5):
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t.Fatal("timeout")
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}
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}
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// Test that "gocryptfs -init -info CIPHERDIR" returns an error to the
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// user. Only one operation flag is allowed.
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func TestMultipleOperationFlags(t *testing.T) {
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// Test all combinations
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opFlags := []string{"-init", "-info", "-passwd", "-fsck"}
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for _, flag1 := range opFlags {
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var flag2 string
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for _, flag2 = range opFlags {
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if flag1 == flag2 {
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continue
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}
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args := []string{flag1, flag2, "/tmp"}
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//t.Logf("testing %v", args)
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cmd := exec.Command(test_helpers.GocryptfsBinary, args...)
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err := cmd.Run()
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exitCode := test_helpers.ExtractCmdExitCode(err)
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if exitCode != exitcodes.Usage {
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t.Fatalf("this should have failed with code %d, but returned %d",
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exitcodes.Usage, exitCode)
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}
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}
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}
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}
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func TestNoexec(t *testing.T) {
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dir := test_helpers.InitFS(t)
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mnt := dir + ".mnt"
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err := os.Mkdir(mnt, 0700)
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if err != nil {
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t.Fatal(err)
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}
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test_helpers.MountOrFatal(t, dir, mnt, "-extpass=echo test", "-noexec")
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defer test_helpers.UnmountPanic(mnt)
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sh := mnt + "/x.sh"
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content := `#!/bin/bash
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echo hello
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`
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err = ioutil.WriteFile(sh, []byte(content), 0755)
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if err != nil {
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t.Fatal(err)
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}
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err = exec.Command(sh).Run()
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exitCode := test_helpers.ExtractCmdExitCode(err)
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if exitCode != int(syscall.EACCES) {
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t.Errorf("got exitcode %d instead of EPERM (%d)", exitCode, syscall.EPERM)
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}
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}
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// Test that a missing argument to "-o" triggers exit code 1.
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// See also cli_args_test.go for comprehensive tests of "-o" parsing.
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func TestMissingOArg(t *testing.T) {
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cmd := exec.Command(test_helpers.GocryptfsBinary, "foo", "bar", "-o")
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err := cmd.Run()
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exitCode := test_helpers.ExtractCmdExitCode(err)
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if exitCode != exitcodes.Usage {
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t.Fatalf("this should have failed with code %d, but returned %d",
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exitcodes.Usage, exitCode)
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}
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}
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// -exclude must return an error in forward mode
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|
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)
|
|
}
|
|
|
|
// Ciphertext dir and mountpoint contains a comma
|
|
// https://github.com/rfjakob/gocryptfs/issues/262
|
|
func TestComma(t *testing.T) {
|
|
dir0 := test_helpers.InitFS(t)
|
|
dir := dir0 + ",foo,bar"
|
|
err := os.Rename(dir0, dir)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
mnt := dir + ".mnt"
|
|
err = test_helpers.Mount(dir, mnt, false, "-extpass", "echo test", "-wpanic=0")
|
|
if err != nil {
|
|
t.Fatalf("Failed to mount %q on %q: %v", dir, mnt, err)
|
|
}
|
|
test_helpers.UnmountPanic(mnt)
|
|
}
|
|
|
|
// Mount with idle timeout 10ms and check that the process exits by itself
|
|
// within 5 seconds.
|
|
func TestIdle(t *testing.T) {
|
|
dir := test_helpers.InitFS(t)
|
|
mnt := dir + ".mnt"
|
|
err := os.Mkdir(mnt, 0700)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
cmd := exec.Command(test_helpers.GocryptfsBinary,
|
|
"-q", "-nosyslog", "-fg", "-extpass", "echo test", "-i", "10ms", dir, mnt)
|
|
cmd.Stdout = os.Stdout
|
|
cmd.Stderr = os.Stderr
|
|
err = cmd.Start()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
timer := time.AfterFunc(5*time.Second, func() {
|
|
t.Error("timeout waiting for umount")
|
|
cmd.Process.Kill()
|
|
})
|
|
err = cmd.Wait()
|
|
timer.Stop()
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
}
|
|
|
|
// Mount with idle timeout of 100ms read something every 10ms. The fs should
|
|
// NOT get unmounted. Regression test for https://github.com/rfjakob/gocryptfs/issues/421
|
|
func TestNotIdle(t *testing.T) {
|
|
dir := test_helpers.InitFS(t)
|
|
mnt := dir + ".mnt"
|
|
err := os.Mkdir(mnt, 0700)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
err = test_helpers.Mount(dir, mnt, false, "-extpass", "echo test", "-i=100ms")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
err = ioutil.WriteFile(mnt+"/foo", []byte("foo"), 0600)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
// Read every 10 milliseconds for a total of 1 second
|
|
for i := 1; i < 100; i++ {
|
|
_, err = ioutil.ReadFile(mnt + "/foo")
|
|
if err != nil {
|
|
t.Fatalf("iteration %d failed: %v", i, err)
|
|
}
|
|
time.Sleep(10 * time.Millisecond)
|
|
}
|
|
// Keep a file handle open for 1 second
|
|
fd, err := os.Open(mnt + "/foo")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
time.Sleep(1 * time.Second)
|
|
buf := make([]byte, 100)
|
|
_, err = fd.Read(buf)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
fd.Close()
|
|
// All good.
|
|
test_helpers.UnmountPanic(mnt)
|
|
}
|
|
|
|
// TestSymlinkedCipherdir checks that if CIPHERDIR itself is a symlink, it is
|
|
// followed.
|
|
// https://github.com/rfjakob/gocryptfs/issues/450
|
|
func TestSymlinkedCipherdir(t *testing.T) {
|
|
dir := test_helpers.InitFS(t)
|
|
dirSymlink := dir + ".symlink"
|
|
err := os.Symlink(dir, dirSymlink)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
mnt := dir + ".mnt"
|
|
test_helpers.MountOrFatal(t, dirSymlink, mnt, "-extpass=echo test")
|
|
defer test_helpers.UnmountPanic(mnt)
|
|
|
|
file := mnt + "/file"
|
|
f, err := os.Create(file)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
f.Close()
|
|
|
|
f, err = os.Open(mnt)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer f.Close()
|
|
names, err := f.Readdirnames(0)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if len(names) != 1 || names[0] != "file" {
|
|
t.Errorf("wrong Readdirnames result: %v", names)
|
|
}
|
|
}
|