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Luma3DS-3GX/haxloader/source/main.c

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/*
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* This file is part of Luma3DS
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* Copyright (C) 2016 Aurora Wright, TuxSH
*
* 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/>.
*
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* Additional Terms 7.b of GPLv3 applies to this file: Requiring preservation of specified
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* reasonable legal notices or author attributions in that material or in the Appropriate Legal
* Notices displayed by works containing it.
*/
#include "memory.h"
#include "cache.h"
#include "types.h"
#include "fatfs/ff.h"
#include "../../build/bundled.h"
static FATFS fs;
void main()
{
if(f_mount(&fs, "0:", 0) == FR_OK)
{
FIL pathFile,
payload;
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bool foundPayload = false;
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if(f_open(&pathFile, "/luma/path.txt", FA_READ) == FR_OK)
{
u32 pathSize = f_size(&pathFile);
if(pathSize > 5 && pathSize < 40)
{
char path[pathSize];
unsigned int read;
f_read(&pathFile, path, pathSize, &read);
if(path[pathSize - 1] == 0xA) pathSize--;
if(path[pathSize - 1] == 0xD) pathSize--;
if(pathSize > 5 && pathSize < 38 && path[0] == '/' && memcmp(&path[pathSize - 4], ".bin", 4) == 0)
{
path[pathSize] = 0;
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foundPayload = f_open(&payload, path, FA_READ) == FR_OK;
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}
}
f_close(&pathFile);
}
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if(!foundPayload) foundPayload = f_open(&payload, "arm9loaderhax.bin", FA_READ);
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if(foundPayload)
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{
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u32 *loaderAddress = (u32 *)0x24FFFF00;
void *payloadAddress = (void *)0x24F00000;
u32 payloadSize = f_size(&payload);
memcpy(loaderAddress, loader_bin, loader_bin_size);
loaderAddress[1] = payloadSize;
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unsigned int read;
f_read(&payload, payloadAddress, payloadSize, &read);
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f_close(&payload);
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flushDCacheRange(loaderAddress, loader_bin_size);
flushICacheRange(loaderAddress, loader_bin_size);
((void (*)())loaderAddress)();
}
}
while(true);
}