v2api: -sharestorage: disable hard link tracking & add tests

Hard link tracking was not correctly disabled
since the migration to the go-fuse v2 api.

Add a test to ensure it stays off.

Fixes https://github.com/rfjakob/gocryptfs/issues/525

1 files changed, 11 insertions, 0 deletions

diff --git a/internal/inomap/inomap.go b/internal/inomap/inomap.go
index 82d50b0..0977a46 100644
--- a/internal/inomap/inomap.go
+++ b/internal/inomap/inomap.go
@@ -104,3 +104,14 @@ func (m *InoMap) TranslateStat(st *syscall.Stat_t) {
 	in := QInoFromStat(st)
 	st.Ino = m.Translate(in)
 }
+
+type TranslateStater interface {
+	TranslateStat(st *syscall.Stat_t)
+}
+
+// TranslateStatZero always sets st.Ino to zero. Used for `-sharedstorage`.
+type TranslateStatZero struct{}
+
+func (z TranslateStatZero) TranslateStat(st *syscall.Stat_t) {
+	st.Ino = 0
+}