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pkg.py
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pkg.py
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#!/usr/bin/env python
from __future__ import with_statement
from Struct import Struct
from fself import SelfHeader, AppInfo
import struct
import sys
import hashlib
import os
import getopt
import ConfigParser
import io
import glob
TYPE_NPDRMSELF = 0x1
TYPE_RAW = 0x3
TYPE_DIRECTORY = 0x4
TYPE_OVERWRITE_ALLOWED = 0x80000000
debug = False
class EbootMeta(Struct):
__endian__ = Struct.BE
def __format__(self):
self.magic = Struct.uint32
self.unk1 = Struct.uint32
self.drmType = Struct.uint32
self.unk2 = Struct.uint32
self.contentID = Struct.uint8[0x30]
self.fileSHA1 = Struct.uint8[0x10]
self.notSHA1 = Struct.uint8[0x10]
self.notXORKLSHA1 = Struct.uint8[0x10]
self.nulls = Struct.uint8[0x10]
class MetaHeader(Struct):
__endian__ = Struct.BE
def __format__(self):
self.unk1 = Struct.uint32
self.unk2 = Struct.uint32
self.drmType = Struct.uint32
self.unk4 = Struct.uint32
self.unk21 = Struct.uint32
self.unk22 = Struct.uint32
self.unk23 = Struct.uint32
self.unk24 = Struct.uint32
self.unk31 = Struct.uint32
self.unk32 = Struct.uint32
self.unk33 = Struct.uint32
self.secondaryVersion = Struct.uint16
self.unk34 = Struct.uint16
self.dataSize = Struct.uint32
self.unk42 = Struct.uint32
self.unk43 = Struct.uint32
self.packagedBy = Struct.uint16
self.packageVersion = Struct.uint16
class DigestBlock(Struct):
__endian__ = Struct.BE
def __format__(self):
self.type = Struct.uint32
self.size = Struct.uint32
self.isNext = Struct.uint64
class FileHeader(Struct):
__endian__ = Struct.BE
def __format__(self):
self.fileNameOff = Struct.uint32
self.fileNameLength = Struct.uint32
self.fileOff = Struct.uint64
self.fileSize = Struct.uint64
self.flags = Struct.uint32
self.padding = Struct.uint32
def __str__(self):
out = ""
out += "[X] File Name: %s [" % self.fileName
if self.flags & 0xFF == TYPE_NPDRMSELF:
out += "NPDRM Self]"
elif self.flags & 0xFF == TYPE_DIRECTORY:
out += "Directory]"
elif self.flags & 0xFF == TYPE_RAW:
out += "Raw Data]"
else:
out += "Unknown]"
if (self.flags & TYPE_OVERWRITE_ALLOWED ) != 0:
out += " Overwrite allowed.\n"
else:
out += " Overwrite NOT allowed.\n"
out += "\n"
out += "[X] File Name offset: %08x\n" % self.fileNameOff
out += "[X] File Name Length: %08x\n" % self.fileNameLength
out += "[X] Offset To File Data: %016x\n" % self.fileOff
out += "[X] File Size: %016x\n" % self.fileSize
out += "[X] Flags: %08x\n" % self.flags
out += "[X] Padding: %08x\n\n" % self.padding
assert self.padding == 0, "I guess I was wrong, this is not padding."
return out
def __repr__(self):
return self.fileName + ("<FileHeader> Size: 0x%016x" % self.fileSize)
def __init__(self):
Struct.__init__(self)
self.fileName = ""
def doWork(self, decrypteddata, context = None):
if context == None:
self.fileName = nullterm(decrypteddata[self.fileNameOff:self.fileNameOff+self.fileNameLength])
else:
self.fileName = nullterm(crypt(context, decrypteddata[self.fileNameOff:self.fileNameOff+self.fileNameLength], self.fileNameLength))
def dump(self, directory, data, header):
if self.flags & 0xFF == 0x4:
try:
os.makedirs(directory + "/" + self.fileName)
except Exception, e:
print
else:
tFile = open(directory + "/" + self.fileName, "wb")
tFile.write(data[self.fileOff:self.fileOff+self.fileSize])
class Header(Struct):
__endian__ = Struct.BE
def __format__(self):
self.magic = Struct.uint32
self.type = Struct.uint32
self.pkgInfoOff = Struct.uint32
self.unk1 = Struct.uint32
self.headSize = Struct.uint32
self.itemCount = Struct.uint32
self.packageSize = Struct.uint64
self.dataOff = Struct.uint64
self.dataSize = Struct.uint64
self.contentID = Struct.uint8[0x30]
self.QADigest = Struct.uint8[0x10]
self.KLicensee = Struct.uint8[0x10]
def __str__(self):
context = keyToContext(self.QADigest)
setContextNum(context, 0xFFFFFFFFFFFFFFFF)
licensee = crypt(context, listToString(self.KLicensee), 0x10)
out = ""
out += "[X] Magic: %08x\n" % self.magic
out += "[X] Type: %08x\n" % self.type
out += "[X] Offset to package info: %08x\n" % self.pkgInfoOff
out += "[ ] unk1: %08x\n" % self.unk1
out += "[X] Head Size: %08x\n" % self.headSize
out += "[X] Item Count: %08x\n" % self.itemCount
out += "[X] Package Size: %016x\n" % self.packageSize
out += "[X] Data Offset: %016x\n" % self.dataOff
out += "[X] Data Size: %016x\n" % self.dataSize
out += "[X] ContentID: '%s'\n" % (nullterm(self.contentID))
out += "[X] QA_Digest: %s\n" % (nullterm(self.QADigest, True))
out += "[X] K Licensee: %s\n" % licensee.encode('hex')
return out
def listToString(inlist):
if isinstance(inlist, list):
return ''.join(["%c" % el for el in inlist])
else:
return ""
def nullterm(str_plus, printhex=False):
if isinstance(str_plus, list):
if printhex:
str_plus = ''.join(["%X" % el for el in str_plus])
else:
str_plus = listToString(str_plus)
z = str_plus.find('\0')
if z != -1:
return str_plus[:z]
else:
return str_plus
def keyToContext(key):
if isinstance(key, list):
key = listToString(key)
key = key[0:16]
largekey = []
for i in range(0, 8):
largekey.append(ord(key[i]))
for i in range(0, 8):
largekey.append(ord(key[i]))
for i in range(0, 8):
largekey.append(ord(key[i+8]))
for i in range(0, 8):
largekey.append(ord(key[i+8]))
for i in range(0, 0x20):
largekey.append(0)
return largekey
#Thanks to anonymous for the help with the RE of this part,
# the x86 mess of ands and ors made my head go BOOM headshot.
def manipulate(key):
if not isinstance(key, list):
return
tmp = listToString(key[0x38:])
tmpnum = struct.unpack('>Q', tmp)[0]
tmpnum += 1
tmpnum = tmpnum & 0xFFFFFFFFFFFFFFFF
setContextNum(key, tmpnum)
def setContextNum(key, tmpnum):
tmpchrs = struct.pack('>Q', tmpnum)
key[0x38] = ord(tmpchrs[0])
key[0x39] = ord(tmpchrs[1])
key[0x3a] = ord(tmpchrs[2])
key[0x3b] = ord(tmpchrs[3])
key[0x3c] = ord(tmpchrs[4])
key[0x3d] = ord(tmpchrs[5])
key[0x3e] = ord(tmpchrs[6])
key[0x3f] = ord(tmpchrs[7])
def crypt(key, inbuf, length):
if not isinstance(key, list):
return ""
ret = ""
offset = 0
while length > 0:
bytes_to_dump = length
if length > 0x10:
bytes_to_dump = 0x10
outhash = SHA1(listToString(key)[0:0x40])
for i in range(0, bytes_to_dump):
ret += chr(ord(outhash[i]) ^ ord(inbuf[offset]))
offset += 1
manipulate(key)
length -= bytes_to_dump
return ret
def SHA1(data):
m = hashlib.sha1()
m.update(data)
return m.digest()
def listPkg(filename):
with open(filename, 'rb') as fp:
data = fp.read()
offset = 0
header = Header()
header.unpack(data[offset:offset+len(header)])
print header
print
assert header.type == 0x00000001, 'Unsupported Type'
if header.itemCount > 0:
print 'Listing: "' + filename + '"'
print "+) overwrite, -) no overwrite"
print
dataEnc = data[header.dataOff:header.dataOff+header.dataSize]
context = keyToContext(header.QADigest)
decData = crypt(context, dataEnc, len(FileHeader())*header.itemCount)
fileDescs = []
for i in range(0, header.itemCount):
fileD = FileHeader()
fileD.unpack(decData[0x20 * i:0x20 * i + 0x20])
fileDescs.append(fileD)
for fileD in fileDescs:
fileD.doWork(dataEnc, context)
out = ""
if fileD.flags & 0xFF == TYPE_NPDRMSELF:
out += " NPDRM SELF:"
elif fileD.flags & 0xFF == TYPE_DIRECTORY:
out += " directory:"
elif fileD.flags & 0xFF == TYPE_RAW:
out += " raw data:"
else:
out += " unknown:"
if (fileD.flags & TYPE_OVERWRITE_ALLOWED ) != 0:
out += "+"
else:
out += "-"
out += "%11d: " % fileD.fileSize
out += fileD.fileName
print out,
print
#print fileD
def unpack(filename):
with open(filename, 'rb') as fp:
data = fp.read()
offset = 0
header = Header()
header.unpack(data[offset:offset+len(header)])
if debug:
print header
print
assert header.type == 0x00000001, 'Unsupported Type'
if header.itemCount > 0:
dataEnc = data[header.dataOff:header.dataOff+header.dataSize]
context = keyToContext(header.QADigest)
decData = crypt(context, dataEnc, header.dataSize)
directory = nullterm(header.contentID)
try:
os.makedirs(directory)
except Exception, e:
pass
fileDescs = []
for i in range(0, header.itemCount):
fileD = FileHeader()
fileD.unpack(decData[0x20 * i:0x20 * i + 0x20])
fileD.doWork(decData)
fileDescs.append(fileD)
if debug:
print fileD
fileD.dump(directory, decData, header)
def getFiles(files, folder, original):
oldfolder = folder
foundFiles = glob.glob( os.path.join(folder, '*') )
sortedList = []
for filepath in foundFiles:
if not os.path.isdir(filepath):
sortedList.append(filepath)
for filepath in foundFiles:
if os.path.isdir(filepath):
sortedList.append(filepath)
for filepath in sortedList:
newpath = filepath.replace("\\", "/")
newpath = newpath[len(original):]
if os.path.isdir(filepath):
folder = FileHeader()
folder.fileName = newpath
folder.fileNameOff = 0
folder.fileNameLength = len(folder.fileName)
folder.fileOff = 0
folder.fileSize = 0
folder.flags = TYPE_OVERWRITE_ALLOWED | TYPE_DIRECTORY
folder.padding = 0
files.append(folder)
getFiles(files, filepath, original)
else:
file = FileHeader()
file.fileName = newpath
file.fileNameOff = 0
file.fileNameLength = len(file.fileName)
file.fileOff = 0
file.fileSize = os.path.getsize(filepath)
file.flags = TYPE_OVERWRITE_ALLOWED | TYPE_RAW
if newpath == "USRDIR/EBOOT.BIN":
file.fileSize = ((file.fileSize - 0x30 + 63) & ~63) + 0x30
file.flags = TYPE_OVERWRITE_ALLOWED | TYPE_NPDRMSELF
file.padding = 0
files.append(file)
def pack(folder, contentid, outname=None):
qadigest = hashlib.sha1()
header = Header()
header.magic = 0x7F504B47
header.type = 0x01
header.pkgInfoOff = 0xC0
header.unk1 = 0x05
header.headSize = 0x80
header.itemCount = 0
header.packageSize = 0
header.dataOff = 0x140
header.dataSize = 0
for i in range(0, 0x30):
header.contentID[i] = 0
for i in range(0,0x10):
header.QADigest[i] = 0
header.KLicensee[i] = 0
metaBlock = MetaHeader()
metaBlock.unk1 = 1 #doesnt change output of --extract
metaBlock.unk2 = 4 #doesnt change output of --extract
metaBlock.drmType = 3 #1 = Network, 2 = Local, 3 = Free, anything else = unknown
metaBlock.unk4 = 2
metaBlock.unk21 = 4
metaBlock.unk22 = 5 #5 == gameexec, 4 == gamedata
metaBlock.unk23 = 3
metaBlock.unk24 = 4
metaBlock.unk31 = 0xE #packageType 0x10 == patch, 0x8 == Demo&Key, 0x0 == Demo&Key (AND UserFiles = NotOverWrite), 0xE == normal, use 0xE for gamexec, and 8 for gamedata
metaBlock.unk32 = 4 #when this is 5 secondary version gets used??
metaBlock.unk33 = 8 #doesnt change output of --extract
metaBlock.secondaryVersion = 0
metaBlock.unk34 = 0
metaBlock.dataSize = 0
metaBlock.unk42 = 5
metaBlock.unk43 = 4
metaBlock.packagedBy = 0x1061
metaBlock.packageVersion = 0
files = []
getFiles(files, folder, folder)
header.itemCount = len(files)
dataToEncrypt = ""
fileDescLength = 0
fileOff = 0x20 * len(files)
for file in files:
alignedSize = (file.fileNameLength + 0x0F) & ~0x0F
file.fileNameOff = fileOff
fileOff += alignedSize
for file in files:
file.fileOff = fileOff
fileOff += (file.fileSize + 0x0F) & ~0x0F
dataToEncrypt += file.pack()
for file in files:
alignedSize = (file.fileNameLength + 0x0F) & ~0x0F
dataToEncrypt += file.fileName
dataToEncrypt += "\0" * (alignedSize-file.fileNameLength)
fileDescLength = len(dataToEncrypt)
for file in files:
if not file.flags & 0xFF == TYPE_DIRECTORY:
path = os.path.join(folder, file.fileName)
fp = open(path, 'rb')
fileData = fp.read()
qadigest.update(fileData)
fileSHA1 = SHA1(fileData)
fp.close()
if fileData[0:9] == "SCE\0\0\0\0\x02\x80":
fselfheader = SelfHeader()
fselfheader.unpack(fileData[0:len(fselfheader)])
appheader = AppInfo()
appheader.unpack(fileData[fselfheader.AppInfo:fselfheader.AppInfo+len(appheader)])
found = False
digestOff = fselfheader.digest
while not found:
digest = DigestBlock()
digest.unpack(fileData[digestOff:digestOff+len(digest)])
if digest.type == 3:
found = True
else:
digestOff += digest.size
if digest.isNext != 1:
break
digestOff += len(digest)
if appheader.appType == 8 and found:
dataToEncrypt += fileData[0:digestOff]
meta = EbootMeta()
meta.magic = 0x4E504400
meta.unk1 = 1
meta.drmType = metaBlock.drmType
meta.unk2 = 1
for i in range(0,min(len(contentid), 0x30)):
meta.contentID[i] = ord(contentid[i])
for i in range(0,0x10):
meta.fileSHA1[i] = ord(fileSHA1[i])
meta.notSHA1[i] = (~meta.fileSHA1[i]) & 0xFF
if i == 0xF:
meta.notXORKLSHA1[i] = (1 ^ meta.notSHA1[i] ^ 0xAA) & 0xFF
else:
meta.notXORKLSHA1[i] = (0 ^ meta.notSHA1[i] ^ 0xAA) & 0xFF
meta.nulls[i] = 0
dataToEncrypt += meta.pack()
dataToEncrypt += fileData[digestOff + 0x80:]
else:
dataToEncrypt += fileData
else:
dataToEncrypt += fileData
dataToEncrypt += '\0' * (((file.fileSize + 0x0F) & ~0x0F) - len(fileData))
header.dataSize = len(dataToEncrypt)
metaBlock.dataSize = header.dataSize
header.packageSize = header.dataSize + 0x1A0
head = header.pack()
qadigest.update(head)
qadigest.update(dataToEncrypt[0:fileDescLength])
QA_Digest = qadigest.digest()
for i in range(0, 0x10):
header.QADigest[i] = ord(QA_Digest[i])
for i in range(0, min(len(contentid), 0x30)):
header.contentID[i] = ord(contentid[i])
context = keyToContext(header.QADigest)
setContextNum(context, 0xFFFFFFFFFFFFFFFF)
licensee = crypt(context, listToString(header.KLicensee), 0x10)
for i in range(0, min(len(contentid), 0x10)):
header.KLicensee[i] = ord(licensee[i])
if outname != None:
outFile = open(outname, 'wb')
else:
outFile = open(contentid + ".pkg", 'wb')
outFile.write(header.pack())
headerSHA = SHA1(header.pack())[3:19]
outFile.write(headerSHA)
metaData = metaBlock.pack()
metaBlockSHA = SHA1(metaData)[3:19]
metaBlockSHAPad = '\0' * 0x30
context = keyToContext([ord(c) for c in metaBlockSHA])
metaBlockSHAPadEnc = crypt(context, metaBlockSHAPad, 0x30)
context = keyToContext([ord(c) for c in headerSHA])
metaBlockSHAPadEnc2 = crypt(context, metaBlockSHAPadEnc, 0x30)
outFile.write(metaBlockSHAPadEnc2)
outFile.write(metaData)
outFile.write(metaBlockSHA)
outFile.write(metaBlockSHAPadEnc)
context = keyToContext(header.QADigest)
encData = crypt(context, dataToEncrypt, header.dataSize)
outFile.write(encData)
outFile.write('\0' * 0x60)
outFile.close()
print header
def usage():
print """usage: [based on revision 1061]
python pkg.py target-directory [out-file]
python pkg.py [options] npdrm-package
-l | --list list packaged files.
-x | --extract extract package.
python pkg.py [options]
--version print revision.
--help print this message."""
def version():
print """pky.py 0.5"""
def main():
global debug
extract = False
list = False
contentid = None
try:
opts, args = getopt.getopt(sys.argv[1:], "hx:dvl:c:", ["help", "extract=", "debug","version", "list=", "contentid="])
except getopt.GetoptError:
usage()
sys.exit(2)
for opt, arg in opts:
if opt in ("-h", "--help"):
usage()
sys.exit(2)
elif opt in ("-v", "--version"):
version()
sys.exit(2)
elif opt in ("-x", "--extract"):
fileToExtract = arg
extract = True
elif opt in ("-l", "--list"):
fileToList = arg
list = True
elif opt in ("-d", "--debug"):
debug = True
elif opt in ("-c", "--contentid"):
contentid = arg
else:
usage()
sys.exit(2)
if extract:
unpack(fileToExtract)
elif list:
listPkg(fileToList)
else:
if len(args) == 1 and contentid != None:
pack(args[0], contentid)
elif len(args) == 2 and contentid != None:
pack(args[0], contentid, args[1])
else:
usage()
sys.exit(2)
if __name__ == "__main__":
main()