2d68b06f9d
If we encounter a 128KB block of zeros, try to skip to the next data section by calling File.SeekData(). This fixes xfstests generic/285, which creates a 17TB sparse file, and runs fsck afterwards. Without this optimization, fsck would take ages.
127 lines
3.2 KiB
Go
127 lines
3.2 KiB
Go
package fsck
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import (
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"encoding/base64"
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"os"
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"os/exec"
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"runtime"
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"strings"
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"testing"
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"time"
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"github.com/pkg/xattr"
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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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func dec64(in string) (out []byte) {
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out, err := base64.RawURLEncoding.DecodeString(in)
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if err != nil {
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panic(err)
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}
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return out
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}
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func TestBrokenFsV14(t *testing.T) {
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// git does not save extended attributes, so we apply them here.
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// xattr_good
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xattr.Set("broken_fs_v1.4/6nGs4Ugr3EAHd0KzkyLZ-Q",
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"user.gocryptfs.0a5e7yWl0SGUGeWB0Sy2Kg",
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dec64("hxnZvXSkDicfwVS9w4r1yYkFF61Qou6NaL-VhObYEdu6kuM"))
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// xattr_corrupt_name
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xattr.Set("broken_fs_v1.4/CMyUifVTjW5fsgXonWBT_RDkvLkdGrLttkZ45T3Oi3A",
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"user.gocryptfs.0a5e7yWl0SGUGeWB0Sy2K0",
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dec64("QHUMDTgbnl8Sv_A2dFQic_G2vN4_gmDna3651JAhF7OZ-YI"))
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// xattr_corrupt_value
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xattr.Set("broken_fs_v1.4/b00sbnGXGToadr01GHZaYQn8tjyRhe1OXNBZoQtMlcQ",
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"user.gocryptfs.0a5e7yWl0SGUGeWB0Sy2Kg",
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dec64("A0hvCePeKpL8bCpijhDKtf7cIijXYQsPnEbNJ84M2ONW0dd"))
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cmd := exec.Command(test_helpers.GocryptfsBinary, "-fsck", "-extpass", "echo test", "broken_fs_v1.4")
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outBin, err := cmd.CombinedOutput()
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out := string(outBin)
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t.Log(out)
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code := test_helpers.ExtractCmdExitCode(err)
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if code != exitcodes.FsckErrors {
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t.Errorf("wrong exit code, have=%d want=%d", code, exitcodes.FsckErrors)
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}
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}
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func TestExampleFses(t *testing.T) {
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dirfd, err := os.Open("../example_filesystems")
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if err != nil {
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t.Fatal(err)
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}
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var fsNames []string
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entries, err := dirfd.Readdir(0)
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if err != nil {
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t.Fatal(err)
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}
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for _, e := range entries {
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if !e.IsDir() {
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continue
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}
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if strings.Contains(e.Name(), "reverse") {
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continue
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}
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if e.Name() == "content" {
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continue
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}
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fsNames = append(fsNames, e.Name())
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}
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for _, n := range fsNames {
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t.Logf("Checking %q", n)
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path := "../example_filesystems/" + n
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cmd := exec.Command(test_helpers.GocryptfsBinary, "-fsck", "-extpass", "echo test", path)
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outBin, err := cmd.CombinedOutput()
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out := string(outBin)
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code := test_helpers.ExtractCmdExitCode(err)
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if code == exitcodes.DeprecatedFS {
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continue
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}
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if code != 0 {
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t.Log(out)
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t.Errorf("fsck returned code %d but fs should be clean", code)
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}
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}
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}
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// TestTerabyteFile verifies that fsck does something intelligent when it hits
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// a 1-terabyte sparse file (trying to read the whole file is not intelligent).
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func TestTerabyteFile(t *testing.T) {
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if runtime.GOOS != "linux" {
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t.Skipf("Only linux supports SEEK_DATA")
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}
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cDir := test_helpers.InitFS(t)
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pDir := cDir + ".mnt"
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test_helpers.MountOrFatal(t, cDir, pDir, "-extpass", "echo test")
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defer test_helpers.UnmountErr(pDir)
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exabyteFile := pDir + "/exabyteFile"
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fd, err := os.Create(exabyteFile)
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if err != nil {
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t.Fatal(err)
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}
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defer fd.Close()
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var oneTiB int64 = 1024 * 1024 * 1024 * 1024
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_, err = fd.WriteAt([]byte("foobar"), oneTiB)
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if err != nil {
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t.Fatal(err)
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}
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fi, err := fd.Stat()
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if err != nil {
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t.Fatal(err)
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}
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t.Logf("size=%d, running fsck", fi.Size())
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cmd := exec.Command(test_helpers.GocryptfsBinary, "-fsck", "-extpass", "echo test", cDir)
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cmd.Stderr = os.Stderr
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cmd.Stdout = os.Stdout
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cmd.Start()
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timer := time.AfterFunc(10*time.Second, func() {
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cmd.Process.Kill()
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t.Fatalf("timeout")
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})
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cmd.Wait()
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timer.Stop()
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}
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