grp/Wii.py
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wtf still cant find the trick for cross-block reading

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Giuseppe (LemonBoy) 2009-06-18 22:39:18 +02:00
parent 325094486c
commit a882691a17
1 changed files with 20 additions and 17 deletions
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37
disc.py
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@ -2,6 +2,7 @@ import os, hashlib, struct, subprocess, fnmatch, shutil, urllib, array
import wx
import png
import time
from title import *
from Crypto.Cipher import AES
from Struct import Struct
@ -127,6 +128,11 @@ class WOD: #WiiOpticalDisc
self.tikData = self.fp.read(0x2A4)
self.partitionKey = Ticket(self.tikData).getTitleKey()
self.appLdr = self.Apploader().unpack(self.readPartition (0x2440, 32))
self.partitionHdr = self.discHeader().unpack(self.readPartition (0x0, 0x400))
self.fp.seek(self.partitionOffset + 0x2a4)
self.tmdSize = struct.unpack(">I", self.fp.read(4))[0]
self.tmdOffset = struct.unpack(">I", self.fp.read(4))[0] >> 2
@ -143,31 +149,28 @@ class WOD: #WiiOpticalDisc
self.fstOffset = 4 * struct.unpack(">I", self.readPartition (0x424, 4))[0]
self.fstSize = 4 * struct.unpack(">I", self.readPartition (0x428, 4))[0]
self.appLdr = self.Apploader().unpack(self.readPartition (0x2440, 32))
self.partitionHdr = self.discHeader().unpack(self.readPartition (0x0, 0x400))
def readPartition(self, offset, size):
readBlocks = 1 + align(size, 0x7C00) / 0x7C00
blockToRead = offset / 0x8000
readStart = offset / 0x7C00
readLen = (align(size, 0x7C00)) / 0x7C00
blob = ''
print 'Read at 0x%x for %i bytes' % (offset, size)
print 'Going to read %i blocks' % readBlocks
print 'Read at 0x%x (Start on %i block, ends at %i block) for %i bytes' % (offset, readStart, readStart + readLen, size)
self.fp.seek(self.partitionOffset + 0x20000 + (0x8000 * blockToRead))
if readBlocks == 0:
blob += self.decryptBlock(self.fp.read(0x8000))
self.fp.seek(self.partitionOffset + 0x20000 + (0x8000 * readStart))
if readLen == 0:
blob += self.decryptBlock(self.fp.read(0x8000))
else:
for x in range(readBlocks):
blob += self.decryptBlock(self.fp.read(0x8000))
for x in range(readLen + 1):
blob += self.decryptBlock(self.fp.read(0x8000))
print 'Read from 0x%x to 0x%x' % (offset, offset + size)
print 'Read from 0x%x to 0x%x' % (offset, offset + size)
return blob[offset:offset + size]
def getFst(self):
print 'DUMP %s' % hexdump(self.readPartition(self.fstOffset, self.fstSize))
return self.readPartition(self.fstOffset, self.fstSize)
#print 'Fst dump : %s' % hexdump(self.readPartition(self.fstOffset, self.fstSize))
return self.readPartition(0x3020, 12320)
def getIsoBootmode(self):
if self.discHdr.discId == 'R' or self.discHdr.discId == '_':