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	Update gcmtool.py
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							| @@ -3,73 +3,65 @@ from pathlib import Path | ||||
| import logging | ||||
|  | ||||
|  | ||||
| __version__ = "0.0.7" | ||||
| __version__ = "0.0.8" | ||||
| __author__ = "rigodron, algoflash, GGLinnk" | ||||
| __license__ = "MIT" | ||||
| __status__ = "developpement" | ||||
|  | ||||
|  | ||||
| DVD_MAGIC = b"\xC2\x33\x9F\x3D" | ||||
| FST_TYPE_FILE = 0 | ||||
| FST_TYPE_DIR = 1 | ||||
| BOOTBIN_LEN = 0x440 | ||||
| BOOTBIN_DOLOFFSET_OFFSET = 0x420 | ||||
| BOOTBIN_FSTOFFSET_OFFSET = 0x424 | ||||
| BOOTBIN_FSTLEN_OFFSET = 0x428 | ||||
| BI2BIN_LEN = 0x2000 | ||||
| DOL_HEADER_LEN = 0x100 | ||||
| APPLOADER_HEADER_LEN = 0x20 | ||||
| ISO_APPLOADER_OFFSET = 0x2440 | ||||
| ISO_APPLOADERSIZE_OFFSET = 0x2454 | ||||
|  | ||||
|  | ||||
| def align_offset(offset:int, align:int): | ||||
|     if offset % align != 0: | ||||
|         offset += align - (offset % align) | ||||
|     return offset | ||||
|  | ||||
|  | ||||
| class Fst: | ||||
|     TYPE_FILE = 0 | ||||
|     TYPE_DIR = 1 | ||||
|  | ||||
|  | ||||
| class Node: | ||||
|     __id = None | ||||
|     __type = None | ||||
|     __name = None | ||||
|     __offset_name = None | ||||
|     def __init__(self, name:str, type): | ||||
|     __name_offset = None | ||||
|     def __init__(self, name:str): | ||||
|         self.__name = name | ||||
|         self.__type = type | ||||
|     def id(self):             return self.__id | ||||
|     def name(self):           return self.__name | ||||
|     def offset_name(self):    return self.__offset_name | ||||
|     def type(self):           return self.__type | ||||
|     def set_id(self, id:int): self.id = id | ||||
|     def set_offset_name(self, offset_name:int): self.__offset_name = offset_name | ||||
|     def name_offset(self):    return self.__name_offset | ||||
|     def set_id(self, id:int): self.__id = id | ||||
|     def set_name_offset(self, name_offset:int): self.__name_offset = name_offset | ||||
|  | ||||
|  | ||||
| class File(Node): | ||||
|     __type = Fst.TYPE_FILE | ||||
|     __size = None | ||||
|     __offset = None | ||||
|     def __init__(self, name:str, size:int): | ||||
|         super().__init__(name, FST_TYPE_FILE) | ||||
|         super().__init__(name) | ||||
|         self.__size = size | ||||
|     def __str__(self): | ||||
|         return f"{self.id};{self.name()};{self.size()};{self.offset()};{self.offset_name()}" | ||||
|         return f"{self.id()};{self.name()};{self.size()};{self.offset()};{self.name_offset()}" | ||||
|     def type(self):                   return self.__type | ||||
|     def size(self):                   return self.__size | ||||
|     def offset(self):                 return self.__offset | ||||
|     def set_offset(self, offset:int): self.__offset = offset  | ||||
|     def format(self): | ||||
|         return self.type().to_bytes(1, "big") + self.offset_name().to_bytes(3, "big") + self.offset().to_bytes(4, "big") + self.size().to_bytes(4, "big") | ||||
|         return self.type().to_bytes(1, "big") + self.name_offset().to_bytes(3, "big") + self.offset().to_bytes(4, "big") + self.size().to_bytes(4, "big") | ||||
|  | ||||
|  | ||||
| class Folder(Node): | ||||
|     __type = Fst.TYPE_DIR | ||||
|     __parent = None | ||||
|     __next_dir = None | ||||
|     __childs = None | ||||
|     def __init__(self, name:str, parent:Node): | ||||
|         super().__init__(name, FST_TYPE_DIR) | ||||
|         super().__init__(name) | ||||
|         self.__parent = parent | ||||
|         self.__childs = [] | ||||
|     def __str__(self): | ||||
|         return f"{self.id};{self.name()};{self.next_dir()};{self.offset_name()}" | ||||
|         return f"{self.id()};{self.name()};{self.next_dir()};{self.name_offset()}" | ||||
|     def type(self):                   return self.__type | ||||
|     def parent(self):                 return self.__parent | ||||
|     def next_dir(self):               return self.__next_dir | ||||
|     def childs(self):                 return self.__childs | ||||
| @@ -82,13 +74,13 @@ class Folder(Node): | ||||
|         self.__childs.append(node) | ||||
|         return node | ||||
|     def format(self): | ||||
|         return self.type().to_bytes(1, "big") + self.offset_name().to_bytes(3, "big") + self.parent().id.to_bytes(4, "big") + self.next_dir().to_bytes(4, "big") | ||||
|         return self.type().to_bytes(1, "big") + self.name_offset().to_bytes(3, "big") + self.parent().id().to_bytes(4, "big") + self.next_dir().to_bytes(4, "big") | ||||
|  | ||||
|  | ||||
| class FstTree: | ||||
| class FstTree(Fst): | ||||
|     __root_path_length = None | ||||
|     __root_node = None | ||||
|     __current_index = 0 | ||||
|     __current_id = 0 | ||||
|     __current_file_offset = None | ||||
|     __align = None | ||||
|     __fst_block = None | ||||
| @@ -106,7 +98,7 @@ class FstTree: | ||||
|         return self.__to_str(self.__root_node) | ||||
|     def __to_str(self, node:Node, depth=0): | ||||
|         result = (depth * "    ") + str(node) +"\n" | ||||
|         if node.type() == FST_TYPE_DIR: | ||||
|         if node.type() == FstTree.TYPE_DIR: | ||||
|             for child in node.childs(): | ||||
|                 result += self.__to_str(child, depth+1) | ||||
|         return result | ||||
| @@ -119,9 +111,38 @@ class FstTree: | ||||
|             node = self.__root_node | ||||
|         else: | ||||
|             self.__nameblock_length += len(node.name()) + 1 | ||||
|         if node.type() == FST_TYPE_DIR: | ||||
|         if node.type() == FstTree.TYPE_DIR: | ||||
|             for child in node.childs(): | ||||
|                 self.__generate_nameblock_length(child) | ||||
|     def __prepare(self, node:Node = None): | ||||
|         name_offset = 0 | ||||
|         if node == None: | ||||
|             node = self.__root_node | ||||
|         else: | ||||
|             name_offset = len(self.__name_block) | ||||
|             self.__name_block += node.name().encode("utf-8")+b"\x00" | ||||
|         node.set_name_offset(name_offset) | ||||
|         node.set_id(self.__current_id) | ||||
|         self.__current_id += 1 | ||||
|          | ||||
|         if node.type() == FstTree.TYPE_DIR: | ||||
|             node.set_next_dir(self.__current_id + self.__count_childs(node)) | ||||
|             if node == self.__root_node: | ||||
|                 self.__fst_block = b"\x01\x00\x00\x00\x00\x00\x00\x00" + node.next_dir().to_bytes(4, "big") | ||||
|             else: | ||||
|                 self.__fst_block += node.format() | ||||
|             for child in node.childs(): | ||||
|                 self.__prepare(child) | ||||
|         else: | ||||
|             node.set_offset(self.__current_file_offset) | ||||
|             self.__fst_block += node.format() | ||||
|             self.__current_file_offset = align_offset(self.__current_file_offset + node.size(), self.__align) | ||||
|     def __count_childs(self, node:Folder): | ||||
|         count = 0 | ||||
|         for child in node.childs(): | ||||
|             if child.type() == FstTree.TYPE_DIR: | ||||
|                 count += self.__count_childs(child) | ||||
|         return count + len(node.childs()) | ||||
|     def add_node_by_path(self, node_path:Path): | ||||
|         parent = self.__root_node | ||||
|         node = None | ||||
| @@ -133,84 +154,93 @@ class FstTree: | ||||
|         else: | ||||
|             node = Folder(node_path.name, parent) | ||||
|         parent.add_child(node) | ||||
|     def __prepare(self, node:Node = None): | ||||
|         offset_name = 0 | ||||
|         if node == None: | ||||
|             node = self.__root_node | ||||
|         else: | ||||
|             offset_name = len(self.__name_block) | ||||
|             self.__name_block += node.name().encode("utf-8")+b"\x00" | ||||
|         node.set_offset_name(offset_name) | ||||
|         node.set_id(self.__current_index) | ||||
|         self.__current_index += 1 | ||||
|          | ||||
|         if node.type() == FST_TYPE_DIR: | ||||
|             node.set_next_dir(self.__current_index + self.__count_childs(node)) | ||||
|             if node == self.__root_node: | ||||
|                 self.__fst_block = b"\x01\x00\x00\x00\x00\x00\x00\x00" + node.next_dir().to_bytes(4, "big") | ||||
|             else: | ||||
|                 self.__fst_block += node.format() | ||||
|             for child in node.childs(): | ||||
|                 self.__prepare(child) | ||||
|         else: | ||||
|             node.set_offset(self.__current_file_offset) | ||||
|             self.__fst_block += node.format() | ||||
|             self.__current_file_offset = align_offset(self.__current_file_offset + node.size(), self.__align) | ||||
|     def get_fst(self): | ||||
|         self.__current_file_offset += self.__get_fst_length() | ||||
|         self.__prepare() | ||||
|         return self.__fst_block + self.__name_block | ||||
|     def __count_childs(self, node:Folder): | ||||
|         count = 0 | ||||
|         for child in node.childs(): | ||||
|             if child.type() == FST_TYPE_DIR: | ||||
|                 count += self.__count_childs(child) | ||||
|         return count + len(node.childs()) | ||||
|  | ||||
|  | ||||
| class BootBin: | ||||
|     LEN = 0x440 | ||||
|     DOLOFFSET_OFFSET = 0x420 | ||||
|     FSTOFFSET_OFFSET = 0x424 | ||||
|     FSTLEN_OFFSET = 0x428 | ||||
|     MAXFSTLEN_OFFSET = 0x42c | ||||
|     __data = None | ||||
|     def __init__(self, data:bytes): | ||||
|         self.__data = bytearray(data) | ||||
|     def data(self): return self.__data | ||||
|     def dvd_magic(self): | ||||
|         return self.__data[0x1c:0x20] | ||||
|     def fstbin_offset(self): | ||||
|         return int.from_bytes(self.__data[BootBin.FSTOFFSET_OFFSET:BootBin.FSTOFFSET_OFFSET+4],"big", signed=False) | ||||
|     def fstbin_len(self): | ||||
|         return int.from_bytes(self.__data[BootBin.FSTLEN_OFFSET:BootBin.FSTLEN_OFFSET+4],"big", signed=False) | ||||
|     def dol_offset(self): | ||||
|         return int.from_bytes(self.__data[BootBin.DOLOFFSET_OFFSET:BootBin.DOLOFFSET_OFFSET+4],"big", signed=False) | ||||
|     def game_code(self): | ||||
|         return self.__data[:4].decode('utf-8') | ||||
|     def disc_number(self): | ||||
|         return int.from_bytes(self.__data[6:7], 'big', signed=False) | ||||
|     def set_dol_offset(self, offset:int): | ||||
|         self.__data[BootBin.DOLOFFSET_OFFSET:BootBin.DOLOFFSET_OFFSET+4] = offset.to_bytes(4, "big") | ||||
|     def set_fst_offset(self, offset:int): | ||||
|         self.__data[BootBin.FSTOFFSET_OFFSET:BootBin.FSTOFFSET_OFFSET+4] = offset.to_bytes(4, "big") | ||||
|     def set_fst_len(self, size:int): | ||||
|         self.__data[BootBin.FSTLEN_OFFSET:BootBin.FSTLEN_OFFSET+4] = size.to_bytes(4, "big") | ||||
|     def set_max_fst_len(self, size:int): | ||||
|         self.__data[BootBin.MAXFSTLEN_OFFSET:BootBin.MAXFSTLEN_OFFSET+4] = size.to_bytes(4, "big") | ||||
|  | ||||
|  | ||||
| class Dol: | ||||
|     DOLHEADER_SECTIONLENTABLE_OFFSET = 0x90 | ||||
|     HEADER_LEN = 0x100 | ||||
|     HEADER_SECTIONLENTABLE_OFFSET = 0x90 | ||||
|     # Get total length using the sum of the 18 sections length and dol header length | ||||
|     def get_dol_len(self, dolheader_data:bytes): | ||||
|         dol_len = DOL_HEADER_LEN | ||||
|         dol_len = Dol.HEADER_LEN | ||||
|         for i in range(18): | ||||
|             dol_len += int.from_bytes(dolheader_data[Dol.DOLHEADER_SECTIONLENTABLE_OFFSET+i*4:Dol.DOLHEADER_SECTIONLENTABLE_OFFSET+(i+1)*4], "big", signed=False) | ||||
|             dol_len += int.from_bytes(dolheader_data[Dol.HEADER_SECTIONLENTABLE_OFFSET+i*4:Dol.HEADER_SECTIONLENTABLE_OFFSET+(i+1)*4], "big", signed=False) | ||||
|         return dol_len | ||||
|  | ||||
|  | ||||
| # https://sudonull.com/post/68549-Gamecube-file-system-device | ||||
| class GCM: | ||||
| class Gcm: | ||||
|     BI2BIN_LEN = 0x2000 | ||||
|     APPLOADER_HEADER_LEN = 0x20 | ||||
|     APPLOADER_OFFSET = 0x2440 | ||||
|     APPLOADERSIZE_OFFSET = 0x2454 | ||||
|     DVD_MAGIC = b"\xC2\x33\x9F\x3D" | ||||
|     def unpack(self, iso_path:Path, folder_path:Path): | ||||
|         with iso_path.open("rb") as iso_file: | ||||
|             bootbin_data = iso_file.read(BOOTBIN_LEN) | ||||
|             if bootbin_data[0x1c:0x20] != DVD_MAGIC: | ||||
|             bootbin = BootBin(iso_file.read(BootBin.LEN)) | ||||
|             if bootbin.dvd_magic() != Gcm.DVD_MAGIC: | ||||
|                 raise Exception("Invalid DVD format - this tool is for ISO/GCM files") | ||||
|             bi2bin_data = iso_file.read(BI2BIN_LEN) | ||||
|             bi2bin_data = iso_file.read(Gcm.BI2BIN_LEN) | ||||
|  | ||||
|             iso_file.seek(ISO_APPLOADERSIZE_OFFSET) | ||||
|             iso_file.seek(Gcm.APPLOADERSIZE_OFFSET) | ||||
|             size = int.from_bytes(iso_file.read(4), "big", signed=False) | ||||
|             trailerSize = int.from_bytes(iso_file.read(4), "big", signed=False) | ||||
|              | ||||
|             apploader_size = APPLOADER_HEADER_LEN + size + trailerSize | ||||
|             apploader_size = Gcm.APPLOADER_HEADER_LEN + size + trailerSize | ||||
|              | ||||
|             iso_file.seek(ISO_APPLOADER_OFFSET) | ||||
|             iso_file.seek(Gcm.APPLOADER_OFFSET) | ||||
|             apploaderimg_data = iso_file.read(apploader_size) | ||||
|  | ||||
|             fstbin_offset = int.from_bytes(bootbin_data[BOOTBIN_FSTOFFSET_OFFSET:BOOTBIN_FSTOFFSET_OFFSET+4],"big", signed=False) | ||||
|             fstbin_len = int.from_bytes(bootbin_data[BOOTBIN_FSTLEN_OFFSET:BOOTBIN_FSTLEN_OFFSET+4],"big", signed=False) | ||||
|             fstbin_offset = bootbin.fstbin_offset() | ||||
|             fstbin_len = bootbin.fstbin_len() | ||||
|             iso_file.seek( fstbin_offset ) | ||||
|             fstbin_data = iso_file.read( fstbin_len ) | ||||
|  | ||||
|             dol_offset = int.from_bytes(bootbin_data[BOOTBIN_DOLOFFSET_OFFSET:BOOTBIN_DOLOFFSET_OFFSET+4],"big", signed=False) | ||||
|             dol_offset = bootbin.dol_offset() | ||||
|             iso_file.seek( dol_offset ) | ||||
|             dol = Dol() | ||||
|             dolheader_data = iso_file.read(DOL_HEADER_LEN) | ||||
|             dolheader_data = iso_file.read(Dol.HEADER_LEN) | ||||
|             dol_len = dol.get_dol_len( dolheader_data ) | ||||
|             bootdol_data = dolheader_data + iso_file.read( dol_len - DOL_HEADER_LEN ) | ||||
|             bootdol_data = dolheader_data + iso_file.read( dol_len - Dol.HEADER_LEN ) | ||||
|             if folder_path != Path("."): | ||||
|                 base_path = folder_path | ||||
|             else: | ||||
|                 base_path = Path(f"{bootbin_data[:4].decode('utf-8')}-{int.from_bytes(bootbin_data[6:7], 'little', signed=False):02}") | ||||
|                 base_path = Path(f"{bootbin.game_code()}-{bootbin.disc_number():02}") | ||||
|              | ||||
|             logging.info(f"unpacking {iso_path} in {base_path}") | ||||
|             sys_path = base_path / "sys" | ||||
| @@ -221,11 +251,11 @@ class GCM: | ||||
|                  (sys_path / "fst.bin").open("wb") as fstbin_file, \ | ||||
|                  (sys_path / "apploader.img").open("wb") as apploaderimg_file,\ | ||||
|                  (sys_path / "boot.dol").open("wb") as bootdol_file: | ||||
|                 logging.debug(f"{iso_path}(0x0:0x{BOOTBIN_LEN:x}) -> {sys_path / 'boot.bin'}") | ||||
|                 bootbin_file.write(bootbin_data) | ||||
|                 logging.debug(f"{iso_path}(0x440:0x{ISO_APPLOADER_OFFSET:x}) -> {sys_path / 'bi2.bin'}") | ||||
|                 logging.debug(f"{iso_path}(0x0:0x{BootBin.LEN:x}) -> {sys_path / 'boot.bin'}") | ||||
|                 bootbin_file.write(bootbin.data()) | ||||
|                 logging.debug(f"{iso_path}(0x440:0x{Gcm.APPLOADER_OFFSET:x}) -> {sys_path / 'bi2.bin'}") | ||||
|                 bi2bin_file.write(bi2bin_data) | ||||
|                 logging.debug(f"{iso_path}(0x{ISO_APPLOADER_OFFSET:x}:0x{ISO_APPLOADER_OFFSET + apploader_size:x} -> {sys_path / 'apploader.img'}") | ||||
|                 logging.debug(f"{iso_path}(0x{Gcm.APPLOADER_OFFSET:x}:0x{Gcm.APPLOADER_OFFSET + apploader_size:x} -> {sys_path / 'apploader.img'}") | ||||
|                 apploaderimg_file.write(apploaderimg_data) | ||||
|                 logging.debug(f"{iso_path}(0x{fstbin_offset:x}:0x{fstbin_offset + fstbin_len:x}) -> {sys_path / 'fst.bin'}") | ||||
|                 fstbin_file.write(fstbin_data) | ||||
| @@ -235,32 +265,32 @@ class GCM: | ||||
|             root_path.mkdir(exist_ok=True) | ||||
|              | ||||
|             # And now we parse FST data to unpack all files in the GCM iso file | ||||
|             dir_index_path = {0: root_path} | ||||
|             dir_id_path = {0: root_path} | ||||
|             currentdir_path = root_path | ||||
|  | ||||
|             # root: index=0 so nextdir is the end | ||||
|             # root: id=0 so nextdir is the end | ||||
|             nextdir = int.from_bytes(fstbin_data[8:12], "big", signed=False) | ||||
|             # offset of filenames block | ||||
|             base_names = nextdir * 12 | ||||
|             # go to parent when index reach next dir | ||||
|             # go to parent when id reach next dir | ||||
|             nextdir_arr = [ nextdir ] | ||||
|  | ||||
|             for index in range(1, base_names // 12): | ||||
|                 i = index * 12 | ||||
|             for id in range(1, base_names // 12): | ||||
|                 i = id * 12 | ||||
|                 file_type = int.from_bytes(fstbin_data[i:i+1], "big", signed=False) | ||||
|                 name = fstbin_data[base_names + int.from_bytes(fstbin_data[i+1:i+4], "big", signed=False):].split(b"\x00")[0].decode("utf-8") | ||||
|                  | ||||
|                 while index == nextdir_arr[-1]: | ||||
|                 while id == nextdir_arr[-1]: | ||||
|                     currentdir_path = currentdir_path.parent | ||||
|                     nextdir_arr.pop() | ||||
|  | ||||
|                 if file_type == FST_TYPE_DIR: | ||||
|                 if file_type == FstTree.TYPE_DIR: | ||||
|                     nextdir = int.from_bytes(fstbin_data[i+8:i+12], "big", signed=False) | ||||
|                     parentdir = int.from_bytes(fstbin_data[i+4:i+8], "big", signed=False) | ||||
|  | ||||
|                     nextdir_arr.append( nextdir ) | ||||
|                     currentdir_path = dir_index_path[parentdir] / name | ||||
|                     dir_index_path[index] = currentdir_path | ||||
|                     currentdir_path = dir_id_path[parentdir] / name | ||||
|                     dir_id_path[id] = currentdir_path | ||||
|                     currentdir_path.mkdir(exist_ok=True) | ||||
|                 else: | ||||
|                     fileoffset = int.from_bytes(fstbin_data[i+4:i+8], "big", signed=False) | ||||
| @@ -281,56 +311,56 @@ class GCM: | ||||
|              (folder_path / "sys" / "apploader.img").open("rb") as apploaderimg_file,\ | ||||
|              (folder_path / "sys" / "boot.dol").open("rb") as bootdol_file : | ||||
|  | ||||
|             logging.debug(f"{folder_path / 'sys' / 'boot.bin'}      -> {iso_path}(0x0:0x{BOOTBIN_LEN:x})") | ||||
|             logging.debug(f"{folder_path / 'sys' / 'bi2.bin'}       -> {iso_path}(0x{BOOTBIN_LEN:x}:0x{ISO_APPLOADER_OFFSET:x})") | ||||
|             logging.debug(f"{folder_path / 'sys' / 'apploader.img'} -> {iso_path}(0x{ISO_APPLOADER_OFFSET:x}:0x{ISO_APPLOADER_OFFSET + (folder_path / 'sys' / 'apploader.img').stat().st_size:x}") | ||||
|             logging.debug(f"{folder_path / 'sys' / 'boot.bin'}      -> {iso_path}(0x0:0x{BootBin.LEN:x})") | ||||
|             logging.debug(f"{folder_path / 'sys' / 'bi2.bin'}       -> {iso_path}(0x{BootBin.LEN:x}:0x{Gcm.APPLOADER_OFFSET:x})") | ||||
|             logging.debug(f"{folder_path / 'sys' / 'apploader.img'} -> {iso_path}(0x{Gcm.APPLOADER_OFFSET:x}:0x{Gcm.APPLOADER_OFFSET + (folder_path / 'sys' / 'apploader.img').stat().st_size:x}") | ||||
|              | ||||
|             bootbin_data = bootbin_file.read() | ||||
|             iso_file.write( bootbin_data ) | ||||
|             bootbin = BootBin(bootbin_file.read()) | ||||
|             iso_file.write(bootbin.data()) | ||||
|             iso_file.write(bi2bin_file.read()) | ||||
|             iso_file.write(apploaderimg_file.read()) | ||||
|  | ||||
|             fstbin_offset = int.from_bytes(bootbin_data[BOOTBIN_FSTOFFSET_OFFSET:BOOTBIN_FSTOFFSET_OFFSET+4],"big", signed=False) | ||||
|             fstbin_len = int.from_bytes(bootbin_data[BOOTBIN_FSTLEN_OFFSET:BOOTBIN_FSTLEN_OFFSET+4],"big", signed=False) | ||||
|             fstbin_offset = bootbin.fstbin_offset() | ||||
|             fstbin_len = bootbin.fstbin_len() | ||||
|             if (folder_path / "sys" / "fst.bin").stat().st_size != fstbin_len: | ||||
|                 raise Exception("Invalid fst.bin size in boot.bin offset 0x{BOOTBIN_FSTLEN_OFFSET:x}:0x{BOOTBIN_FSTLEN_OFFSET+4:x}!") | ||||
|                 raise Exception("Invalid fst.bin size in boot.bin offset 0x{BootBin.FSTLEN_OFFSET:x}:0x{BootBin.FSTLEN_OFFSET+4:x}!") | ||||
|             logging.debug(f"{folder_path / 'sys' / 'fst.bin'}       -> {iso_path}(0x{fstbin_offset:x}:0x{fstbin_offset + fstbin_len:x})") | ||||
|             iso_file.seek( fstbin_offset ) | ||||
|             fstbin_data = fstbin_file.read() | ||||
|             iso_file.write( fstbin_data ) | ||||
|              | ||||
|             dol_offset = int.from_bytes(bootbin_data[BOOTBIN_DOLOFFSET_OFFSET:BOOTBIN_DOLOFFSET_OFFSET+4],"big", signed=False) | ||||
|             dol_offset = bootbin.dol_offset() | ||||
|             logging.debug(f"{folder_path / 'sys' / 'boot.dol'}      -> {iso_path}(0x{dol_offset:x}:0x{dol_offset + (folder_path / 'sys' / 'boot.dol').stat().st_size:x})") | ||||
|             iso_file.seek( dol_offset ) | ||||
|             iso_file.write( bootdol_file.read() ) | ||||
|  | ||||
|             # Now parse fst.bin for writing files in the iso | ||||
|             dir_index_path = {0: folder_path / "root"} | ||||
|             dir_id_path = {0: folder_path / "root"} | ||||
|             currentdir_path = folder_path / "root" | ||||
|  | ||||
|             # root: index=0 so nextdir is the end | ||||
|             # root: id=0 so nextdir is the end | ||||
|             nextdir = int.from_bytes(fstbin_data[8:12], "big", signed=False) | ||||
|             # offset of filenames block | ||||
|             base_names = nextdir * 12 | ||||
|             # go to parent when index reach next dir | ||||
|             # go to parent when id reach next dir | ||||
|             nextdir_arr = [ nextdir ] | ||||
|  | ||||
|             for index in range(1, base_names // 12): | ||||
|                 i = index * 12 | ||||
|             for id in range(1, base_names // 12): | ||||
|                 i = id * 12 | ||||
|                 file_type = int.from_bytes(fstbin_data[i:i+1], "big", signed=False) | ||||
|                 name = fstbin_data[base_names + int.from_bytes(fstbin_data[i+1:i+4], "big", signed=False):].split(b"\x00")[0].decode("utf-8") | ||||
|                  | ||||
|                 while index == nextdir_arr[-1]: | ||||
|                 while id == nextdir_arr[-1]: | ||||
|                     currentdir_path = currentdir_path.parent | ||||
|                     nextdir_arr.pop() | ||||
|  | ||||
|                 if file_type == FST_TYPE_DIR: | ||||
|                 if file_type == FstTree.TYPE_DIR: | ||||
|                     nextdir = int.from_bytes(fstbin_data[i+8:i+12], "big", signed=False) | ||||
|                     parentdir = int.from_bytes(fstbin_data[i+4:i+8], "big", signed=False) | ||||
|  | ||||
|                     nextdir_arr.append( nextdir ) | ||||
|                     currentdir_path = dir_index_path[parentdir] / name | ||||
|                     dir_index_path[index] = currentdir_path | ||||
|                     currentdir_path = dir_id_path[parentdir] / name | ||||
|                     dir_id_path[id] = currentdir_path | ||||
|                     currentdir_path.mkdir(exist_ok=True) | ||||
|                 else: | ||||
|                     fileoffset = int.from_bytes(fstbin_data[i+4:i+8], "big", signed=False) | ||||
| @@ -346,15 +376,14 @@ class GCM: | ||||
|         root_path = folder_path / "root" | ||||
|         sys_path = folder_path / "sys" | ||||
|         with (sys_path / "boot.bin").open("rb+") as bootbin_file: | ||||
|             dol_offset = align_offset(ISO_APPLOADER_OFFSET + (sys_path / "apploader.img").stat().st_size, align) | ||||
|             logging.info(f"Patching sys/boot.bin offset 0x{BOOTBIN_DOLOFFSET_OFFSET:x} with new dol offset (0x{dol_offset:x})") | ||||
|             bootbin_file.seek(BOOTBIN_DOLOFFSET_OFFSET) | ||||
|             bootbin_file.write(dol_offset.to_bytes(4, "big")) | ||||
|             dol_offset = align_offset(Gcm.APPLOADER_OFFSET + (sys_path / "apploader.img").stat().st_size, align) | ||||
|             logging.info(f"Patching sys/boot.bin offset 0x{BootBin.DOLOFFSET_OFFSET:x} with new dol offset (0x{dol_offset:x})") | ||||
|             bootbin = BootBin(bootbin_file.read()) | ||||
|             bootbin.set_dol_offset(dol_offset) | ||||
|              | ||||
|             fst_offset = align_offset(dol_offset + (sys_path / "boot.dol").stat().st_size, align) | ||||
|             logging.info(f"Patching sys/boot.bin offset 0x{BOOTBIN_FSTOFFSET_OFFSET:x} with new fst offset (0x{fst_offset:x})") | ||||
|             bootbin_file.seek(BOOTBIN_FSTOFFSET_OFFSET) | ||||
|             bootbin_file.write(fst_offset.to_bytes(4, "big")) | ||||
|             logging.info(f"Patching sys/boot.bin offset 0x{BootBin.FSTOFFSET_OFFSET:x} with new fst offset (0x{fst_offset:x})") | ||||
|             bootbin.set_fst_offset(fst_offset) | ||||
|              | ||||
|             fst_tree = FstTree(root_path, fst_offset, align=align) | ||||
|  | ||||
| @@ -370,9 +399,12 @@ class GCM: | ||||
|                 fstbin_file.write( fst_tree.get_fst() ) | ||||
|  | ||||
|             fst_size = fst_path.stat().st_size | ||||
|             logging.info(f"Patching sys/boot.bin offset 0x{BOOTBIN_FSTLEN_OFFSET:x} with new fst size (0x{fst_size:x})") | ||||
|             bootbin_file.seek(BOOTBIN_FSTLEN_OFFSET) | ||||
|             bootbin_file.write(fst_size.to_bytes(4, "big")) | ||||
|             logging.info(f"Patching sys/boot.bin offset 0x{BootBin.FSTLEN_OFFSET:x} with new fst size (0x{fst_size:x})") | ||||
|             bootbin.set_fst_len(fst_size) | ||||
|             logging.info(f"Patching sys/boot.bin offset 0x{BootBin.MAXFSTLEN_OFFSET:x} with new max fst size (0x{fst_size:x})") | ||||
|             bootbin.set_max_fst_len(fst_size) | ||||
|  | ||||
|             bootbin_file.write(bootbin.data()) | ||||
|  | ||||
|  | ||||
| def get_argparser(): | ||||
| @@ -398,7 +430,7 @@ if __name__ == '__main__': | ||||
|     p_input = Path(args.input_path) | ||||
|     p_output = Path(args.output_path) | ||||
|  | ||||
|     gcm = GCM() | ||||
|     gcm = Gcm() | ||||
|     if args.verbose: | ||||
|         logging.getLogger().setLevel(logging.DEBUG) | ||||
|  | ||||
|   | ||||
		Reference in New Issue
	
	Block a user