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https://github.com/Virtual-World-RE/NeoGF.git
synced 2024-12-25 06:41:35 +01:00
Update gcmtool.py
Added commands: * -ur: unpack & rebuild * -rp rebuild & pack Added --disable-ignore for multiple dol sharing the same space in the GCM/iso (Metroid Prime). Added stats on collisions for files that are sharing the sames places in the iso instead of a raising BadAlignError.
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tmpz23
GitHub
parent
1ad5180187
commit
d88341e0ec
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@ -3,7 +3,7 @@ from pathlib import Path
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import logging
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__version__ = "0.1.2"
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__version__ = "0.1.3"
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__author__ = "rigodron, algoflash, GGLinnk"
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__license__ = "MIT"
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__status__ = "developpement"
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@ -27,20 +27,19 @@ class InvalidFSTFileSizeError(Exception): pass
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class FSTDirNotFoundError(Exception): pass
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# raised during pack when FST file name is not found in the root folder; this happen when a file is renamed or removed
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class FSTFileNotFoundError(Exception): pass
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# raised during the stats command when align make file offsets collisions (this happen when given align > real files align); or when using an invalid align
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# raised when using an invalid align
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class BadAlignError(Exception): pass
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def align_offset(offset:int, align:int):
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def align_top(address:int, align:int):
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"""
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Give the upper rounded offset aligned using the align value.
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input: offset = int
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Give the upper rounded address aligned using the align value.
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input: address = int
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input: align = int
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return offset = int
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return address = int
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"""
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if offset % align != 0:
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offset += align - (offset % align)
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return offset
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if address % align == 0: return address
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return address + align - (address % align)
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class Fst:
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@ -185,7 +184,7 @@ class FstTree(Fst):
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return fst_length = int
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"""
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self.__generate_nameblock_length()
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return align_offset(self.__count_childs(self.__root_node)*12 + 12 + self.__nameblock_length, self.__align)
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return align_top(self.__count_childs(self.__root_node)*12 + 12 + self.__nameblock_length, self.__align)
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def __generate_nameblock_length(self, node:Node = None):
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"""
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Recursive walk into the tree to get total name_block length.
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@ -230,7 +229,7 @@ class FstTree(Fst):
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else:
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node.set_offset(self.__current_file_offset)
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self.__fst_block += node.format()
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self.__current_file_offset = align_offset(self.__current_file_offset + node.size(), self.__align)
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self.__current_file_offset = align_top(self.__current_file_offset + node.size(), self.__align)
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def __count_childs(self, node:Folder):
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"""
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Recursivly count total childs of a Node. It is usefull for getting next_dir id.
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@ -314,9 +313,7 @@ class BootBin:
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class Dol:
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"""
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Dol is used to find the dol size and group data adding meaning to hex values and allowing to get it's size.
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"""
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"Dol is used to find the dol size and group data adding meaning to hex values and allowing to get it's size."
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HEADER_LEN = 0x100
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HEADER_SECTIONLENTABLE_OFFSET = 0x90
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def get_dol_len(self, dolheader_data:bytes):
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@ -353,7 +350,7 @@ class Gcm:
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return min_offset
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def unpack(self, iso_path:Path, folder_path:Path):
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"""
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unpack takes an GCM/iso and unpack it in a folder.
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Unpack takes an GCM/iso file and unpack it in a folder.
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input: iso_path = Path
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input: folder_path = Path
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"""
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@ -444,9 +441,9 @@ class Gcm:
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(currentdir_path / name).write_bytes( iso_file.read(filesize) )
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logging.debug(f"{iso_path}(0x{fileoffset:x}:0x{fileoffset + filesize:x}) -> {currentdir_path / name}")
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def pack(self, folder_path:Path, iso_path:Path = None):
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def pack(self, folder_path:Path, iso_path:Path = None, disable_ignore:bool = False):
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"""
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pack takes a folder unpacked by the pack command and pack it in a GCM/iso file.
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Pack takes a folder unpacked by the pack command and pack it in a GCM/iso file.
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input: folder_path = Path
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input: iso_path = Path
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"""
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@ -479,7 +476,7 @@ class Gcm:
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dol_offset = bootbin.dol_offset()
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dol_end_offset = dol_offset + (sys_path / 'boot.dol').stat().st_size
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# FST can be before the dol or after
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if dol_offset < fstbin_offset < dol_end_offset or (fstbin_offset < dol_offset and dol_end_offset > self.__get_min_file_offset(fstbin_data)):
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if not disable_ignore and (dol_offset < fstbin_offset < dol_end_offset or (fstbin_offset < dol_offset and dol_end_offset > self.__get_min_file_offset(fstbin_data))):
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raise DolSizeOverflowError("Error - The dol size has been increased and overflow on next file or on FST. To solve this use --rebuild-fst.")
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logging.debug(f"{sys_path / 'boot.dol'} -> {iso_path}(0x{dol_offset:x}:0x{dol_end_offset:x})")
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iso_file.seek( dol_offset )
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@ -548,12 +545,12 @@ class Gcm:
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root_path = folder_path / "root"
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sys_path = folder_path / "sys"
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dol_offset = align_offset(Gcm.APPLOADER_OFFSET + (sys_path / "apploader.img").stat().st_size, align)
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dol_offset = align_top(Gcm.APPLOADER_OFFSET + (sys_path / "apploader.img").stat().st_size, align)
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logging.info(f"Patching {Path('sys/boot.bin')} offset 0x{BootBin.DOLOFFSET_OFFSET:x} with new dol offset (0x{dol_offset:x})")
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bootbin = BootBin((sys_path / "boot.bin").read_bytes())
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bootbin.set_dol_offset(dol_offset)
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fst_offset = align_offset(dol_offset + (sys_path / "boot.dol").stat().st_size, align)
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fst_offset = align_top(dol_offset + (sys_path / "boot.dol").stat().st_size, align)
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logging.info(f"Patching {Path('sys/boot.bin')} offset 0x{BootBin.FSTOFFSET_OFFSET:x} with new FST offset (0x{fst_offset:x})")
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bootbin.set_fst_offset(fst_offset)
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@ -619,13 +616,21 @@ class Gcm:
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"""
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(bootbin, apploader_size, dol_len, fstbin_data) = self.__get_sys_from_folder(path) if path.is_dir() else self.__get_sys_from_file(path)
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# Begin offset - end offset - length - name
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mapping_lists = [
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[0, BootBin.LEN, f"{BootBin.LEN:08x}", "boot.bin"],
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[0x440, Gcm.APPLOADER_OFFSET, f"{Gcm.BI2BIN_LEN:08x}", "bi2.bin"],
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[Gcm.APPLOADER_OFFSET, Gcm.APPLOADER_OFFSET + apploader_size, f"{apploader_size:08x}", "apploader.img"],
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[bootbin.fstbin_offset(), bootbin.fstbin_offset() + bootbin.fstbin_len(), f"{bootbin.fstbin_len():08x}", "fst.bin"],
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[bootbin.dol_offset(), bootbin.dol_offset() + dol_len, f"{dol_len:08x}", "boot.dol"]]
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class MemoryObject:
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def __init__(self, name:str, beg_offset:int, length:int):
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self.name = name
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self.beg_offset = beg_offset
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self.length = length
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self.end_offset = beg_offset + length
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def __str__(self):
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return f"| {self.beg_offset:08x} | {self.end_offset:08x} | {self.length:08x} | {self.name}"
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mem_obj_list = [
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MemoryObject("boot.bin", 0, BootBin.LEN),
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MemoryObject("bi2.bin", 0x440, Gcm.BI2BIN_LEN),
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MemoryObject("apploader.img", Gcm.APPLOADER_OFFSET, apploader_size),
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MemoryObject("fst.bin", bootbin.fstbin_offset(), bootbin.fstbin_len()),
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MemoryObject("boot.dol", bootbin.dol_offset(), dol_len)]
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dir_id_path = {0: Path(".")}
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currentdir_path = Path(".")
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@ -656,34 +661,55 @@ class Gcm:
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else:
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fileoffset = int.from_bytes(fstbin_data[i+4:i+8], "big", signed=False)
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filesize = int.from_bytes(fstbin_data[i+8:i+12], "big", signed=False)
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mapping_lists.append( [fileoffset, fileoffset + filesize, f"{filesize:08x}", str(currentdir_path / name)] )
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mem_obj_list.append( MemoryObject(str(currentdir_path / name), fileoffset, filesize) )
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mapping_lists.sort(key=lambda x: x[0])
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empty_space_tuples = []
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last_offset = 0
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for i in range(len(mapping_lists)):
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if last_offset < mapping_lists[i][0]:
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empty_space_tuples.append( (f"{last_offset:08x}", f"{mapping_lists[i][0]:08x}", f"{mapping_lists[i][0] - last_offset:08x}", "") )
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elif last_offset > mapping_lists[i][0]:
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raise BadAlignError(f"Error - Bad align ({align})! Offsets collision.")
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last_offset = align_offset(mapping_lists[i][1], align)
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mapping_lists[i][0] = f"{mapping_lists[i][0]:08x}"
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mapping_lists[i][1] = f"{mapping_lists[i][1]:08x}"
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mem_obj_list.sort(key=lambda x: x.beg_offset)
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empty_space_list = []
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collision_list = []
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last_mem_obj = mem_obj_list[2]
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for mem_obj in mem_obj_list[3:]:
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last_aligned = align_top(last_mem_obj.end_offset, align)
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if last_aligned < mem_obj.beg_offset:
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empty_space_list.append( MemoryObject("", last_aligned, mem_obj.beg_offset - last_aligned) )
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elif last_aligned > mem_obj.beg_offset:
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collision_list += [last_mem_obj, mem_obj]
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last_mem_obj = mem_obj
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print(f"# Stats for \"{path}\":")
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self.__print("Global memory mapping:", mapping_lists)
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self.__print(f"Empty spaces (align={align}):", empty_space_tuples)
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def __print(self, title:str, lines_tuples):
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self.__print("Global memory mapping:", mem_obj_list)
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if empty_space_list:
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self.__print(f"Empty spaces (align={align}):", empty_space_list)
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if collision_list:
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self.__print(f"Collisions (align={align}):", collision_list)
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def __print(self, title:str, mem_obj_list):
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"""
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Print a table with a title.
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* input: title = str
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* input: lines_tuples = [(b_offset:str, e_offset:str, length:str, Name:str), ...]
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* input: mem_obj_list = [MemoryObject, ...]
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"""
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stats_buffer = "#"*70+f"\n# {title}\n"+"#"*70+"\n| b offset | e offset | length | Name\n|"+"-"*69+"\n"
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for line in lines_tuples:
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stats_buffer += "| "+" | ".join(line)+"\n"
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print(stats_buffer, end='')
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full_title = "#"*70+f"\n# {title}\n"+"#"*70+"\n| b offset | e offset | length | Name\n|"+"-"*69+"\n"
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print(full_title + "\n".join([str(mem_obj) for mem_obj in mem_obj_list]))
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def pack(p_input:Path, p_output:Path, disable_ignore):
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logging.info("### Pack in new GCM iso")
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if(p_output == Path(".")):
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p_output = Path(p_input.with_suffix(".iso"))
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logging.info(f"packing folder \"{p_input}\" in \"{p_output}\"")
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gcm.pack(p_input, p_output, disable_ignore)
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def unpack(p_input:Path, p_output:Path):
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logging.info("### Unpack GCM iso in new folder")
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gcm.unpack(p_input, p_output)
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def rebuild_fst(p_input:Path, align):
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logging.info("### Rebuilding FST and patching boot.bin")
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if args.align < 1:
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raise BadAlignError("Error - Align must be > 0.")
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logging.info(f"Using alignment: {args.align}")
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gcm.rebuild_fst(p_input, align)
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def get_argparser():
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@ -692,14 +718,17 @@ def get_argparser():
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parser.add_argument('--version', action='version', version='%(prog)s ' + __version__)
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parser.add_argument('-v', '--verbose', action='store_true', help='verbose mode')
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parser.add_argument('-a', '--align', type=int, help='-a=10: alignment of files in the GCM ISO (default value is 4)', default=4)
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parser.add_argument('-di', '--disable-ignore', action='store_true', help='-di: disable dol collisions verification when packing files sharing the same place in the GCM.')
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parser.add_argument('input_path', metavar='INPUT', help='')
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parser.add_argument('output_path', metavar='OUTPUT', help='', nargs='?', default="")
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group = parser.add_mutually_exclusive_group(required=True)
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group.add_argument('-p', '--pack', action='store_true', help="-p source_folder (dest_file.iso): Pack source_folder in new file source_folder.iso or dest_file.iso if specified")
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group.add_argument('-u', '--unpack', action='store_true', help="-u source_iso.iso (dest_folder): Unpack the GCM/ISO in new folder source_iso or dest_folder if specified")
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group.add_argument('-p', '--pack', action='store_true', help="-p source_folder (dest_file.iso): Pack source_folder in new file source_folder.iso or dest_file.iso if specified.")
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group.add_argument('-u', '--unpack', action='store_true', help="-u source_iso.iso (dest_folder): Unpack the GCM/ISO in new folder source_iso or dest_folder if specified.")
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group.add_argument('-s', '--stats', action='store_true', help="-s source_iso.iso or source_folder: Get stats about GCM, FST, memory, lengths and offsets.")
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group.add_argument('-r', '--rebuild-fst', action='store_true', help="-r game_folder: Rebuild the game_folder/sys/fst.bin using files in game_folder/root")
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group.add_argument('-r', '--rebuild-fst', action='store_true', help="-r game_folder: Rebuild the game_folder/sys/fst.bin using files in game_folder/root.")
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group.add_argument('-ur', '--unpack-rebuild-fst', action='store_true', help="-ur source_iso.iso (dest_folder): Unpack and rebuild the FST.")
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group.add_argument('-rp', '--rebuild-fst-pack', action='store_true', help="-rp source_folder (dest_file.iso): Rebuild the FST and pack.")
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return parser
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@ -715,19 +744,16 @@ if __name__ == '__main__':
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logging.getLogger().setLevel(logging.DEBUG)
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if args.pack:
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logging.info("### Pack in new GCM iso")
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if(p_output == Path(".")):
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p_output = Path(p_input.with_suffix(".iso"))
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logging.info(f"packing folder \"{p_input}\" in \"{p_output}\"")
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gcm.pack(p_input, p_output)
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pack(p_input, p_output, args.disable_ignore)
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elif args.unpack:
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logging.info("### Unpack GCM iso in new folder")
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gcm.unpack(p_input, p_output)
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unpack(p_input, p_output)
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elif args.stats:
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gcm.stats(p_input)
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elif args.rebuild_fst:
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logging.info("### Rebuilding FST and patching boot.bin")
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if args.align < 1:
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raise BadAlignError("Error - Align must be > 0.")
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logging.info(f"Using alignment: {args.align}")
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gcm.rebuild_fst(p_input, args.align)
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rebuild_fst(p_input, args.align)
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elif args.rebuild_fst_pack:
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rebuild_fst(p_input, args.align)
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pack(p_input, p_output, args.disable_ignore)
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elif args.unpack_rebuild_fst:
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unpack(p_input, p_output)
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rebuild_fst(p_output, args.align)
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