Load the root.rpx and men.rpx from the environment path

Dockerfile

@@ -1,3 +1,3 @@
-FROM wiiuenv/devkitppc:20220601
+FROM wiiuenv/devkitppc:20220605
 
 WORKDIR project

README.md

@@ -4,11 +4,12 @@
 This a version of the [original mocha](https://github.com/dimok789/mocha) to be used with the [EnvironmentLoader](https://github.com/wiiu-env/EnvironmentLoader).
 
 ## Usage
-Place the `00_mocha.rpx` in the `[ENVIRONMENT]/modules/setup` folder and run the [EnvironmentLoader](https://github.com/wiiu-env/EnvironmentLoader).
+([ENVIRONMENT] is a placeholder for the actual environment name.)
-- Requires [PayloadFromRPX](https://github.com/wiiu-env/PayloadFromRPX) as `sd:/wiiu/root.rpx` to support returning from the system settings.
+1. Place the `00_mocha.rpx` in the `sd:/wiiu/environments/[ENVIRONMENT]/modules/setup` folder and run the [EnvironmentLoader](https://github.com/wiiu-env/EnvironmentLoader).
+2. Requires [PayloadFromRPX](https://github.com/wiiu-env/PayloadFromRPX) as `sd:/wiiu/environments/[ENVIRONMENT]/root.rpx` to support returning from the system settings.
 
 ## Patches
-- You can also place a RPX as `men.rpx` in the `sd:/wiiu` folder which will replace the Wii U Menu.
+- You can also place a RPX as `men.rpx` in the `sd:/wiiu/environments/[ENVIRONMENT]/` folder which will replace the Wii U Menu.
 - RPX redirection
 - overall sd access
 - wupserver and own IPC which can be used with [libiosuhax](https://github.com/wiiu-env/libiosuhax).

source/common/ipc_defs.h

@@ -226,7 +226,6 @@ typedef struct {
 #define IPC_CUSTOM_START_MCP_THREAD       0xFE
 #define IPC_CUSTOM_MEN_RPX_HOOK_COMPLETED 0xFD
 #define IPC_CUSTOM_LOAD_CUSTOM_RPX        0xFC
-#define IPC_CUSTOM_META_XML_READ          0xFB
 #define IPC_CUSTOM_START_USB_LOGGING      0xFA
 #define IPC_CUSTOM_COPY_ENVIRONMENT_PATH  0xF9
 

source/ios_kernel/source/kernel_patches.c

@@ -72,10 +72,6 @@ int kernel_syscall_0x81(u32 command, u32 arg1, u32 arg2, u32 arg3) {
             kernel_memcpy((void *) arg1, (void *) arg2, arg3);
             break;
         }
-        case KERNEL_GET_CFW_CONFIG: {
-            //kernel_memcpy((void*)arg1, &cfw_config, sizeof(cfw_config));
-            break;
-        }
         case KERNEL_READ_OTP: {
             int (*read_otp_internal)(int index, void *out_buf, u32 size) = (int (*)(int, void *, u32)) 0x08120248;
             read_otp_internal(0, (void *) (arg1), 0x400);

source/ios_mcp/link.ld

@@ -1,5 +1,7 @@
 OUTPUT_ARCH(arm)
 
+PROVIDE(snprintf = 0x05059010);
+
 SECTIONS
 {
 	.text 0x05116000 : {

source/ios_mcp/source/mcp_loadfile.c

@@ -21,6 +21,7 @@
 #include "ipc_types.h"
 #include "logger.h"
 #include "svc.h"
+#include <stdio.h>
 #include <string.h>
 
 int (*const real_MCP_LoadFile)(ipcmessage *msg)                                                                                                      = (void *) 0x0501CAA8 + 1; //+1 for thumb
@@ -74,10 +75,13 @@ int _MCP_LoadFile_patch(ipcmessage *msg) {
         }
     }
     if (strncmp(request->name, "men.rpx", strlen("men.rpx")) == 0) {
-        replace_path = "wiiu/root.rpx";
+        rpxpath[0] = '\0';
         if (skipPPCSetup) {
-            replace_path = "wiiu/men.rpx";
+            snprintf(rpxpath, sizeof(rpxpath) - 1, "%s/men.rpx", &((char *) 0x05119F00)[19]); // Copy in environment path
+        } else {
+            snprintf(rpxpath, sizeof(rpxpath) - 1, "%s/root.rpx", &((char *) 0x05119F00)[19]); // Copy in environment path
         }
+
         // At startup we want to hook into the Wii U Menu by replacing the men.rpx with a file from the SD Card
         // The replacement may restart the application to execute a kernel exploit.
         // The men.rpx is hooked until the "IPC_CUSTOM_MEN_RPX_HOOK_COMPLETED" command is passed to IOCTL 0x100.