fs.mitm: Add HANS-style redirection for System Data Archives.

stratosphere/fs_mitm/source/fs_shim.h

@@ -0,0 +1,31 @@
+/**
+ * @file fs_shim.h
+ * @brief Filesystem Services (fs) IPC wrapper. To be merged into libnx, eventually.
+ * @author SciresM
+ * @copyright libnx Authors
+ */
+#pragma once
+#include <switch.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* TODO: Reverse this more. */
+typedef struct {
+    u32 flags[0x40/sizeof(u32)];
+} FsRangeInfo;
+
+/* Missing fsp-srv commands. */
+Result fsOpenDataStorageByDataId(Service* s, FsStorageId storage_id, u64 data_id, FsStorage* out);
+
+/* Missing FS File commands. */
+Result fsFileOperateRange(FsFile* f, u32 op_id, u64 off, u64 len, FsRangeInfo *out);
+
+/* Missing FS Storage commands. */
+Result fsStorageGetSize(FsStorage* s, u64* out);
+Result fsStorageOperateRange(FsStorage* s, u32 op_id, u64 off, u64 len, FsRangeInfo *out);
+
+#ifdef __cplusplus
+}
+#endif