Jakob Unterwurzacher 9 months ago
parent
commit
3b881b0174
  1. 66
      tests/defaults/main_test.go

66
tests/defaults/main_test.go

@ -425,3 +425,69 @@ func TestFsync(t *testing.T) {
t.Fatal(err)
}
}
// force_owner was broken by the v2.0 rewrite:
// The owner was only forced for GETATTR, but not for CREATE or LOOKUP.
//
// https://github.com/rfjakob/gocryptfs/issues/609
// https://github.com/rfjakob/gocryptfs/pull/610
func TestForceOwner(t *testing.T) {
cDir := test_helpers.InitFS(t)
os.Chmod(cDir, 0777) // Mount needs to be accessible for us
pDir := cDir + ".mnt"
test_helpers.MountOrFatal(t, cDir, pDir, "-force_owner=1234:1234", "-extpass=echo test")
defer test_helpers.UnmountPanic(pDir)
// We need an unrestricted umask
oldmask := syscall.Umask(0)
defer syscall.Umask(oldmask)
foo := pDir + "/foo"
// In the answer to a FUSE CREATE, gocryptfs sends file information including
// the owner. This is cached by the kernel and will be used for the next
// stat() call.
fd, err := syscall.Creat(foo, 0666)
if err != nil {
t.Fatal(err)
}
syscall.Close(fd)
var st syscall.Stat_t
if err := syscall.Stat(foo, &st); err != nil {
t.Fatal(err)
}
if st.Uid != 1234 || st.Gid != 1234 {
t.Errorf("CREATE returned uid or gid != 1234: %#v", st)
}
// We can clear the kernel stat() cache by writing to the file
fd, err = syscall.Open(foo, syscall.O_WRONLY, 0)
if err != nil {
t.Fatal(err)
}
if _, err := syscall.Write(fd, []byte("hello world")); err != nil {
t.Fatal(err)
}
syscall.Close(fd)
// This stat() triggers a new GETATTR
if err := syscall.Stat(foo, &st); err != nil {
t.Fatal(err)
}
if st.Uid != 1234 || st.Gid != 1234 {
t.Errorf("GETATTR returned uid or gid != 1234: %#v", st)
}
// Remount to clear cache
test_helpers.UnmountPanic(pDir)
test_helpers.MountOrFatal(t, cDir, pDir, "-force_owner=1234:1234", "-extpass=echo test")
// This stat() triggers a new LOOKUP
if err := syscall.Stat(foo, &st); err != nil {
t.Fatal(err)
}
if st.Uid != 1234 || st.Gid != 1234 {
t.Errorf("LOOKUP returned uid or gid != 1234: %#v", st)
}
}

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