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authorJakob Unterwurzacher2021-08-16 18:40:48 +0200
committerJakob Unterwurzacher2021-08-16 19:23:58 +0200
commitb2724070d95234a8cd281f275211e0f827a8bbe1 (patch)
tree0c4efc4714d0826ac99ec40c905a111c9f9c7015 /tests/reverse/one_file_system_test.go
parentad4b99170b9ad438909f5cba8c32109a18697a7a (diff)
reverse mode: implement -one-file-system
Fixes https://github.com/rfjakob/gocryptfs/issues/475
Diffstat (limited to 'tests/reverse/one_file_system_test.go')
-rw-r--r--tests/reverse/one_file_system_test.go77
1 files changed, 77 insertions, 0 deletions
diff --git a/tests/reverse/one_file_system_test.go b/tests/reverse/one_file_system_test.go
new file mode 100644
index 0000000..5d8b76b
--- /dev/null
+++ b/tests/reverse/one_file_system_test.go
@@ -0,0 +1,77 @@
+package reverse
+
+import (
+ "io/ioutil"
+ "net/url"
+ "os"
+ "runtime"
+ "syscall"
+ "testing"
+
+ "github.com/rfjakob/gocryptfs/tests/test_helpers"
+)
+
+func doTestOneFileSystem(t *testing.T, plaintextnames bool) {
+ // Let's not explode with "TempDir: pattern contains path separator"
+ myEscapedName := url.PathEscape(t.Name())
+ mnt, err := ioutil.TempDir(test_helpers.TmpDir, myEscapedName)
+ if err != nil {
+ t.Fatal(err)
+ }
+ cliArgs := []string{"-reverse", "-zerokey", "-one-file-system"}
+ if plaintextnames {
+ cliArgs = append(cliArgs, "-plaintextnames")
+ }
+ test_helpers.MountOrFatal(t, "/", mnt, cliArgs...)
+ defer test_helpers.UnmountErr(mnt)
+
+ // Copied from inomap
+ const maxPassthruIno = 1<<48 - 1
+
+ entries, err := os.ReadDir(mnt)
+ if err != nil {
+ t.Fatal(err)
+ }
+ mountpoints := []string{}
+ for _, e := range entries {
+ i, err := e.Info()
+ if err != nil {
+ continue
+ }
+ if !e.IsDir() {
+ // We are only interested in directories
+ continue
+ }
+ st := i.Sys().(*syscall.Stat_t)
+ // The inode numbers of files with a different device number are remapped
+ // to something above maxPassthruIno
+ if st.Ino > maxPassthruIno {
+ mountpoints = append(mountpoints, e.Name())
+ }
+ }
+ if len(mountpoints) == 0 {
+ t.Skip("no mountpoints found, nothing to test")
+ }
+ for _, m := range mountpoints {
+ e, err := os.ReadDir(mnt + "/" + m)
+ if err != nil {
+ t.Error(err)
+ }
+ expected := 1
+ if plaintextnames {
+ expected = 0
+ }
+ if len(e) != expected {
+ t.Errorf("mountpoint %q does not look empty: %v", m, e)
+ }
+ }
+ t.Logf("tested %d mountpoints: %v", len(mountpoints), mountpoints)
+}
+
+func TestOneFileSystem(t *testing.T) {
+ if runtime.GOOS != "linux" {
+ t.Skip("only works on linux")
+ }
+ t.Run("normal", func(t *testing.T) { doTestOneFileSystem(t, false) })
+ t.Run("plaintextnames", func(t *testing.T) { doTestOneFileSystem(t, true) })
+}