Loader: Implement ldr:ro->LoadNRR(). NOTE: No sigchecks, at the moment.

stratosphere/loader/source/ldr_nro.hpp

@@ -0,0 +1,33 @@
+#pragma once
+#include <switch.h>
+#include <cstdio>
+
+#define MAGIC_NRO0 0x304F524E
+#define MAGIC_NRR0 0x3052524E
+
+class NroUtils {
+    public:    
+        struct NrrHeader {
+            u32 magic;
+            u32 _0x4;
+            u32 _0x8;
+            u32 _0xC;
+            u64 title_id_mask;
+            u64 title_id_pattern;
+            u64 _0x20;
+            u64 _0x28;
+            u8  modulus[0x100];
+            u8  fixed_key_signature[0x100];
+            u8  nrr_signature[0x100];
+            u64 title_id_min;
+            u32 nrr_size;
+            u32 _0x33C;
+            u32 hash_offset;
+            u32 num_hashes;
+            u64 _0x348;
+        };
+        
+        
+        static_assert(sizeof(NrrHeader) == 0x350, "Incorrectly defined NrrHeader!");
+        static Result ValidateNrrHeader(NrrHeader *header, u64 size, u64 title_id_min);
+};