diff --git a/codehandler.bin b/codehandler.bin new file mode 100644 index 0000000..e5cbb78 Binary files /dev/null and b/codehandler.bin differ diff --git a/main.py b/main.py new file mode 100644 index 0000000..e89232c --- /dev/null +++ b/main.py @@ -0,0 +1,314 @@ +import sys, os, time + +def resource_path(relative_path): + """ Get absolute path to resource, works for dev and for PyInstaller """ + base_path = getattr(sys, '_MEIPASS', os.path.dirname(os.path.abspath(__file__))) + return os.path.join(base_path, relative_path) + +def build(gct, dol, size): + with open(resource_path('sme-code.bin'), 'rb') as code, open(dol, 'rb+') as dol, open(gct, 'rb') as gecko, open(resource_path('codehandler.bin'), 'rb') as handler, open('tmp.bin', 'wb+') as tmp, open(os.path.join('BUILD', os.path.split(r'{}'.format(dol))[1][:-2]), 'wb+') as final: + '''Initialize the new DOL file''' + + final.write(dol.read()) + + '''Initialize the sme-code loader''' + + tmp.write(code.read()) + code.seek(0, 0) + tmp.seek(0, 0) + + '''Search for main entry of loader''' + + entryIndex = 0 + sample = tmp.read(4) + while sample: + if sample == ENTRY: + tmp.seek(-4, 1) + tmp.write(bytes.fromhex('7C0802A6')) + break + entryIndex += 4 + sample = tmp.read(4) + tmp.seek(0) + + '''Get BSS section for insert''' + + final.seek(int('D8', 16)) + BSS = int(final.read(4).hex(), 16) + BSS_length = int(final.read(4).hex(), 16) + dump_address = '{:08X}'.format(int(BSS + (BSS_length / 2)))[:-2] + '00' + _START = bytes.fromhex('{:08X}'.format(int(dump_address, 16) + entryIndex)) + cLoader = bytes.fromhex(dump_address) + + '''Get address split for later''' + + upperAddr, lowerAddr = dump_address[:int(len(dump_address)/2)], dump_address[int(len(dump_address)/2):] + + '''Get code initialize address''' + + final.seek(int('E0', 16)) + _init = final.read(4) + + '''Patch the values for the addresses and such''' + + hooked = False + heaped = False + sized = False + fsized = False + + initUpperAddr = bytes.fromhex(upperAddr) + geckoUpperAddr = bytes.fromhex(upperAddr) + gUpperAddr = bytes.fromhex(upperAddr) + + while hooked == False or heaped == False or sized == False or fsized == False: + try: + sample = tmp.read(4) + if sample == HOOK: #Found keyword "HOOK". Goes with the entry to the game + if not hooked: + tmp.seek(-4, 1) + + initInfo = tmp.tell() + if int(lowerAddr, 16) + initInfo > int('7FFF', 16): #Absolute addressing + initUpperAddr = bytes.fromhex('{:04X}'.format(int(upperAddr, 16) + 1)) + if int(lowerAddr, 16) + (initInfo + 4) > int('7FFF', 16): #Absolute addressing + geckoUpperAddr = bytes.fromhex('{:04X}'.format(int(upperAddr, 16) + 1)) + + tmp.write(_init) + hooked = True + elif sample == HEAP: #Found keyword "HEAP". Goes with the resize of the heap + if not heaped: + tmp.seek(-4, 1) + + gInfo = tmp.tell() + if int(lowerAddr, 16) + gInfo > int('7FFF', 16): #Absolute addressing + gUpperAddr = bytes.fromhex('{:04X}'.format(int(upperAddr, 16) + 1)) + + tmp.write(size) + heaped = True + elif sample == LOADERSIZE: #Found keyword "LSIZ". Goes with the size of the loader + if not sized: + tmp.seek(-4, 1) + tmp.write(get_size(code)) + sized = True + elif sample == FULLSIZE: #Found keyword "FSIZ". Goes with the size of the loader + codes + if not fsized: + tmp.seek(-4, 1) + code.seek(0, 2) + gecko.seek(0, 2) + tmp.write(get_size(code, gecko.tell())) + fsized = True + except TypeError as err: + print('Fatal error, (' + err + ') build failed to complete') + time.sleep(3) + sys.exit(1) + + '''Patch all load/store offsets to data''' + + tmp.seek(0) + sample = tmp.read(2) + while sample: + if sample == GH: + tmp.seek(-2, 1) + tmp.write(gUpperAddr) + elif sample == GL: + tmp.seek(-2, 1) + tmp.write(bytes.fromhex('{:04X}'.format(int(lowerAddr, 16) + gInfo))) + elif sample == CH: + tmp.seek(-2, 1) + tmp.write(geckoUpperAddr) + elif sample == CL: + tmp.seek(-2, 1) + tmp.write(bytes.fromhex('{:04X}'.format(int(lowerAddr, 16) + (initInfo + 4)))) + elif sample == IH: + tmp.seek(-2, 1) + tmp.write(initUpperAddr) + elif sample == IL: + tmp.seek(-2, 1) + tmp.write(bytes.fromhex('{:04X}'.format(int(lowerAddr, 16) + initInfo))) + elif sample == JH: + tmp.seek(-2, 1) + tmp.write(geckoUpperAddr) + elif sample == JL: + tmp.seek(-2, 1) + tmp.write(bytes.fromhex('{:04X}'.format(int(lowerAddr, 16) + (initInfo + 8)))) + sample = tmp.read(2) + + tmp.seek(0) + gecko.seek(0) + dol_handler_offset = get_size(final) + final.write(handler.read()) + time.sleep(0.01) + dol_sme_offset = get_size(final) + final.write(tmp.read()) + time.sleep(0.01) + final.write(gecko.read()) + final.seek(0, 0) + status = False + i = 0 + while i < 6: + size = int(final.read(4).hex(), 16) + if size == 0: + status = True + offset = i * 4 + final.seek(-4, 1) + final.write(dol_handler_offset) + final.write(dol_sme_offset) + + final.seek(int('48', 16) + offset) + final.write(bytes.fromhex('80001800')) + final.write(cLoader) + final.seek(int('E0', 16)) + final.write(_START) + handler_size = get_size(handler) + tmp.seek(0, 2) + gecko.seek(0, 2) + sme_code_size = get_size(tmp, gecko.tell()) + final.seek(int('90', 16) + offset) + final.write(handler_size) + final.write(sme_code_size) + break + else: + i += 1 + if status == False: + print('Not enough sections to patch the DOL file! Potentially due to previous mods?') + +def get_size(file, offset=0): + """ Return a file's size in bytes """ + file.seek(0, 2) + return(bytes.fromhex('{:08X}'.format(file.tell() + offset))) + + +if __name__ == "__main__": + if len(sys.argv) == 1: + while True: + gct = input('Name of the input GCT file? ') + if os.path.splitext(gct)[1] == '': + gct = gct + '.gct' + if os.path.splitext(gct)[1] != '.gct' and os.path.splitext(gct)[1] != '.GCT': + print('Invalid input!') + continue + if os.path.exists(gct): + gct = os.path.abspath(gct) + break + else: + print('File not found! Please try again.') + while True: + dol = input('Name of the input dol file? ') + if os.path.splitext(dol)[1] == '': + dol = dol + '.dol' + if os.path.splitext(dol)[1] != '.dol': + print('Invalid input!') + continue + if os.path.exists(dol): + dol = os.path.abspath(dol) + break + else: + print('File not found! Please try again.') + elif len(sys.argv) == 2: + if sys.argv[1].endswith('.gct') or sys.argv[1].endswith('.GCT'): + gct = sys.argv[1] + while True: + dol = input('Name of the input dol file? ') + if os.path.splitext(dol)[1] == '': + dol = dol + '.dol' + if os.path.splitext(dol)[1] != '.dol': + print('Invalid input!') + continue + if os.path.exists(dol): + dol = os.path.abspath(dol) + break + else: + print('File not found! Please try again.') + elif sys.argv[1].endswith('.dol'): + dol = sys.argv[1] + while True: + gct = input('Name of the input GCT file? ') + if os.path.splitext(gct)[1] == '': + gct = gct + '.gct' + if os.path.splitext(gct)[1] != '.gct' and os.path.splitext(gct)[1] != '.GCT': + print('Invalid input!') + continue + if os.path.exists(gct): + gct = os.path.abspath(gct) + break + else: + print('File not found! Please try again.') + else: + print('The given file is invalid! Please provide a valid dol file, a valid GCT file, or both.') + time.sleep(1) + sys.exit(1) + else: + if sys.argv[1].endswith('.gct') or sys.argv[1].endswith('.GCT'): + gct = sys.argv[1] + if sys.argv[2].endswith('.dol'): + dol = sys.argv[2] + else: + while True: + dol = input('Name of the input DOL file? ') + if os.path.splitext(dol)[1] == '': + dol = dol + '.dol' + if os.path.splitext(dol)[1] != '.dol': + print('Invalid input!') + continue + if os.path.exists(dol): + dol = os.path.abspath(dol) + break + else: + print('File not found! Please try again.') + elif sys.argv[1].endswith('.dol'): + dol = sys.argv[1] + if sys.argv[2].endswith('.gct') or sys.argv[2].endswith('.GCT'): + gct = sys.argv[2] + else: + while True: + gct = input('Name of the input GCT file? ') + if os.path.splitext(gct)[1] == '': + gct = gct + '.gct' + if os.path.splitext(gct)[1] != '.gct' and os.path.splitext(gct)[1] != '.GCT': + print('Invalid input!') + continue + if os.path.exists(gct): + gct = os.path.abspath(gct) + break + else: + print('File not found! Please try again.') + else: + print('The given files are invalid! Please provide a valid DOL file, a valid GCT file, or both.') + sys.exit(1) + + + while True: + size = input('Define desired code space. (Hex): ') + try: + int(size, 16) + break + except Exception: + print('Invalid input!') + time1 = time.time() + + HEAP = bytes.fromhex('48454150') + LOADERSIZE = bytes.fromhex('4C53495A') + FULLSIZE = bytes.fromhex('4653495A') + HOOK = bytes.fromhex('484F4F4B') + ENTRY = bytes.fromhex('454E5452') + GH = bytes.fromhex('4748') + GL = bytes.fromhex('474C') + CH = bytes.fromhex('4348') + CL = bytes.fromhex('434C') + IH = bytes.fromhex('4948') + IL = bytes.fromhex('494C') + JH = bytes.fromhex('4A48') + JL = bytes.fromhex('4A4C') + size = bytes.fromhex('{:08X}'.format(int(size, 16))) + + try: + if not os.path.isdir('BUILD'): + os.mkdir('BUILD') + build(gct, dol, size) + os.remove('tmp.bin') + print('Compiled in {:0.4f} seconds!'.format(time.time() - time1)) + time.sleep(4) + + except Exception as err: + print(err) + time.sleep(4) + sys.exit(1) diff --git a/sme-code.bin b/sme-code.bin new file mode 100644 index 0000000..c173910 Binary files /dev/null and b/sme-code.bin differ