PayloadLoaderPayload/src/main.cpp
2023-04-17 12:24:34 +02:00

221 lines
6.8 KiB
C++

/****************************************************************************
* Copyright (C) 2018-2022 Maschell
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
****************************************************************************/
#include "dynamic.h"
#include "kernel.h"
#include "utils/DirList.h"
#include "utils/ElfUtils.h"
#include "utils/logger.h"
#include <coreinit/debug.h>
#include <coreinit/dynload.h>
#include <coreinit/filesystem.h>
#include <coreinit/memexpheap.h>
#include <coreinit/screen.h>
#include <cstdint>
#include <malloc.h>
#include <map>
#include <string>
#include <sys/stat.h>
#include <utils/StringTools.h>
#include <vector>
#include <vpad/input.h>
std::map<std::string, std::string> get_all_payloads(const char *relativefilepath);
std::string PayloadSelectionScreen(const std::map<std::string, std::string> &payloads);
extern "C" void init_wut();
extern "C" void fini_wut();
MEMExpHeapBlock *memory_start = nullptr;
extern "C" uint32_t start_wrapper(int argc, char **argv) {
doKernelSetup();
InitFunctionPointers();
// Save last entry on mem2 heap to detect leaked memory
MEMHeapHandle mem2_heap_handle = MEMGetBaseHeapHandle(MEM_BASE_HEAP_MEM2);
auto heap = (MEMExpHeap *) mem2_heap_handle;
memory_start = heap->usedList.tail;
init_wut();
initLogging();
DEBUG_FUNCTION_LINE_VERBOSE("Hello from payload.elf multiloader");
VPADReadError err;
VPADStatus vpad_data;
VPADRead(VPAD_CHAN_0, &vpad_data, 1, &err);
uint32_t btn = vpad_data.hold | vpad_data.trigger;
std::map<std::string, std::string> payloads = get_all_payloads("wiiu/payloads");
uint32_t entryPoint = 0;
std::string payload_path = "wiiu/payloads/default/payload.elf";
if ((btn & VPAD_BUTTON_B) == VPAD_BUTTON_B) {
payload_path = PayloadSelectionScreen(payloads);
DEBUG_FUNCTION_LINE_VERBOSE("Selected %s", payload_path.c_str());
}
entryPoint = load_loader_elf_from_sd(nullptr, payload_path.c_str());
if (entryPoint != 0) {
DEBUG_FUNCTION_LINE("Loaded payload entrypoint at %08X", entryPoint);
} else {
DEBUG_FUNCTION_LINE_ERR("Failed to load: %s", payload_path.c_str());
}
deinitLogging();
fini_wut();
revertKernelHook();
return entryPoint;
}
extern "C" int _start(int argc, char **argv) {
uint32_t entryPoint = start_wrapper(argc, argv);
MEMHeapHandle mem2_heap_handle = MEMGetBaseHeapHandle(MEM_BASE_HEAP_MEM2);
auto heap = (MEMExpHeap *) mem2_heap_handle;
// free leaked memory
if (memory_start) {
int leak_count = 0;
while (true) {
MEMExpHeapBlock *memory_end = heap->usedList.tail;
if (memory_end == memory_start) {
break;
}
auto mem_ptr = &memory_end[1]; // &memory_end + sizeof(MEMExpHeapBlock);
free(mem_ptr);
leak_count++;
}
DEBUG_FUNCTION_LINE_INFO("Freed %d leaked memory blocks\n", leak_count);
}
int res = -1;
if (entryPoint != 0) {
res = ((int (*)(int, char **)) entryPoint)(argc, argv);
}
return res;
}
std::map<std::string, std::string> get_all_payloads(const char *relativefilepath) {
std::map<std::string, std::string> result;
std::vector<std::string> payload_folders;
std::vector<std::string> files_inFolder;
DirList dirList(std::string("fs:/vol/external01/") + relativefilepath, nullptr, DirList::Dirs, 1);
dirList.SortList();
for (int i = 0; i < dirList.GetFilecount(); i++) {
auto curDirName = dirList.GetFilename(i);
auto curPath = dirList.GetFilepath(i);
DEBUG_FUNCTION_LINE("Reading path %s", curDirName);
auto payloadPath = std::string(curPath) + "/payload.elf";
auto fd = fopen(payloadPath.c_str(), "r");
if (fd) {
fclose(fd);
result[curDirName] = payloadPath;
}
}
return result;
}
std::string PayloadSelectionScreen(const std::map<std::string, std::string> &payloads) {
// Init screen and screen buffers
OSScreenInit();
uint32_t screen_buf0_size = OSScreenGetBufferSizeEx(SCREEN_TV);
uint32_t screen_buf1_size = OSScreenGetBufferSizeEx(SCREEN_DRC);
auto *screenBuffer = (uint8_t *) memalign(0x100, screen_buf0_size + screen_buf1_size);
OSScreenSetBufferEx(SCREEN_TV, (void *) screenBuffer);
OSScreenSetBufferEx(SCREEN_DRC, (void *) (screenBuffer + screen_buf0_size));
OSScreenEnableEx(SCREEN_TV, 1);
OSScreenEnableEx(SCREEN_DRC, 1);
// Clear screens
OSScreenClearBufferEx(SCREEN_TV, 0);
OSScreenClearBufferEx(SCREEN_DRC, 0);
OSScreenFlipBuffersEx(SCREEN_TV);
OSScreenFlipBuffersEx(SCREEN_DRC);
VPADStatus vpad_data;
VPADReadError error;
int selected = 0;
std::string header = "Please choose your payload:";
while (true) {
// Clear screens
OSScreenClearBufferEx(SCREEN_TV, 0);
OSScreenClearBufferEx(SCREEN_DRC, 0);
int pos = 0;
OSScreenPutFontEx(SCREEN_TV, 0, pos, header.c_str());
OSScreenPutFontEx(SCREEN_DRC, 0, pos, header.c_str());
pos += 2;
int i = 0;
for (auto const &[key, val] : payloads) {
std::string text = StringTools::strfmt("%s %s", i == selected ? "> " : " ", key.c_str());
OSScreenPutFontEx(SCREEN_TV, 0, pos, text.c_str());
OSScreenPutFontEx(SCREEN_DRC, 0, pos, text.c_str());
i++;
pos++;
}
VPADRead(VPAD_CHAN_0, &vpad_data, 1, &error);
if (vpad_data.trigger == VPAD_BUTTON_A) {
break;
}
if (vpad_data.trigger == VPAD_BUTTON_UP) {
selected--;
if (selected < 0) {
selected = 0;
}
} else if (vpad_data.trigger == VPAD_BUTTON_DOWN) {
selected++;
if ((uint32_t) selected >= payloads.size()) {
selected = payloads.size() - 1;
}
}
OSScreenFlipBuffersEx(SCREEN_TV);
OSScreenFlipBuffersEx(SCREEN_DRC);
OSSleepTicks(OSMillisecondsToTicks(16));
}
free(screenBuffer);
int i = 0;
for (auto const &[key, val] : payloads) {
if (i == selected) {
return val;
}
i++;
}
return "";
}