try to implement NNU-Patcher

src/dynamic_libs/nn_nim_functions.c

@@ -0,0 +1,38 @@
+/****************************************************************************
+ * Copyright (C) 2015
+ * by Dimok
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any
+ * damages arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any
+ * purpose, including commercial applications, and to alter it and
+ * redistribute it freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you
+ * must not claim that you wrote the original software. If you use
+ * this software in a product, an acknowledgment in the product
+ * documentation would be appreciated but is not required.
+ *
+ * 2. Altered source versions must be plainly marked as such, and
+ * must not be misrepresented as being the original software.
+ *
+ * 3. This notice may not be removed or altered from any source
+ * distribution.
+ ***************************************************************************/
+#include "os_functions.h"
+#include "nn_nim_functions.h"
+
+u32 nn_nim_handle __attribute__((section(".data"))) = 0;
+
+void InitAcquireNim(void)
+{
+    OSDynLoad_Acquire("nn_nim.rpl", &nn_nim_handle);
+}
+
+void InitNimFunctionPointers(void)
+{
+    u32 *funcPointer = 0;
+    InitAcquireNim();
+}

src/dynamic_libs/nn_nim_functions.h

@@ -0,0 +1,20 @@
+#ifndef __NN_NIM_FUNCTIONS_H_
+#define __NN_NIM_FUNCTIONS_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <gctypes.h>
+
+/* Handle for coreinit */
+extern u32 nn_nim_handle;
+
+void InitAcquireNim(void);
+void InitNimFunctionPointers(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // __NN_NIM_FUNCTIONS_H_

src/main.c

@@ -20,6 +20,7 @@
 #include "menu.h"
 #include "main.h"
 #include "ios_exploit.h"
+#include "nnu.h"
 
 static int exitToHBLOnLaunch = 0;
 
@@ -85,11 +86,13 @@ int Menu_Main(void)
             {
                 OSForceFullRelaunch();
                 SYSLaunchMenu();
+		nnupatcher();
                 returnCode = EXIT_RELAUNCH_ON_LOAD;
             }
             else if(config.launchSysMenu)
             {
                 SYSLaunchMenu();
+		nnupatcher();
                 exitToHBLOnLaunch = 1;
                 returnCode = EXIT_RELAUNCH_ON_LOAD;
             }

src/nnu.c

@@ -0,0 +1,22 @@
+#include <string.h>
+#include <stdio.h>
+#include "dynamic_libs/os_functions.h"
+#include "dynamic_libs/nn_nim_functions.h"
+#include "nnu.h"
+
+void nnupatcher(void) {
+	InitNimFunctionPointers();
+
+	u32 *targetfunction, *patchoffset;
+
+	// locate function
+	OSDynLoad_FindExport(nn_nim_handle, 0, "NeedsNetworkUpdate__Q2_2nn3nimFPb", &targetfunction);
+
+	patchoffset = OSEffectiveToPhysical(targetfunction);
+	patchoffset = (u32*)((u32)patchoffset - 0x31000000 + 0xA0000000);
+
+	// now patch
+	patchoffset[0] = 0x38600000;
+	patchoffset[1] = 0x38800000;
+	patchoffset[2] = 0x4E800020;
+}

src/nnu.h

@@ -0,0 +1,6 @@
+#ifndef _NNU_H_
+#define _NNU_H_
+
+void nnupatcher(void);
+
+#endif