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ps4-kernel.py
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ps4-kernel.py
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#!/usr/bin/env python
'''
PS4 Kernel Loader by SocraticBliss (R)
Major Thanks to...
# aerosoul
# balika011
# Znullptr
# Pablo (kozarovv)
# ChendoChap
# xyz
# CelesteBlue
# kiwidogg
# motoharu
# noname120
# flatz
# Team Reswitched
Extra Special Thanks for telling me my program sucks...
# zecoxao
ps4-kernel.py: IDA loader for reading Sony PlayStation(R) 4 Kernel files
'''
from idaapi import *
from idc import *
from pprint import pprint as pp
import idaapi
import idc
import operator
import struct
import sys
class Binary:
__slots__ = ('EI_MAGIC', 'EI_CLASS', 'EI_DATA', 'EI_VERSION',
'EI_OSABI', 'EI_PADDING', 'EI_ABIVERSION', 'EI_SIZE',
'E_TYPE', 'E_MACHINE', 'E_VERSION', 'E_START_ADDR',
'E_PHT_OFFSET', 'E_SHT_OFFSET', 'E_FLAGS', 'E_SIZE',
'E_PHT_SIZE', 'E_PHT_COUNT', 'E_SHT_SIZE', 'E_SHT_COUNT',
'E_SHT_INDEX', 'E_SEGMENTS', 'E_SECTIONS')
# Elf Types
ET_NONE = 0x0
ET_REL = 0x1
ET_EXEC = 0x2
ET_DYN = 0x3
ET_CORE = 0x4
ET_SCE_EXEC = 0xfe00
ET_SCE_REPLAY_EXEC = 0xfe01
ET_SCE_RELEXEC = 0xfe04
ET_SCE_STUBLIB = 0xfe0c
ET_SCE_DYNEXEC = 0xfe10
ET_SCE_DYNAMIC = 0xfe18
ET_LOPROC = 0xff00
ET_HIPROC = 0xffff
# Elf Architecture
EM_X86_64 = 0x3E
def __init__(self, f):
f.seek(0)
self.EI_MAGIC = struct.unpack('<4s', f.read(4))[0]
self.EI_CLASS = struct.unpack('<B', f.read(1))[0]
self.EI_DATA = struct.unpack('<B', f.read(1))[0]
self.EI_VERSION = struct.unpack('<B', f.read(1))[0]
self.EI_OSABI = struct.unpack('<B', f.read(1))[0]
self.EI_ABIVERSION = struct.unpack('<B', f.read(1))[0]
self.EI_PADDING = struct.unpack('6x', f.read(6))
self.EI_SIZE = struct.unpack('<B', f.read(1))[0]
Binary.FMT = '<I' if self.EI_CLASS == 0x1 else '<Q'
Binary.SIZE = struct.calcsize(Binary.FMT)
# Elf Properties
self.E_TYPE = struct.unpack('<H', f.read(2))[0]
self.E_MACHINE = struct.unpack('<H', f.read(2))[0]
self.E_VERSION = struct.unpack('<I', f.read(4))[0]
self.E_START_ADDR = struct.unpack(Binary.FMT, f.read(Binary.SIZE))[0]
self.E_PHT_OFFSET = struct.unpack(Binary.FMT, f.read(Binary.SIZE))[0]
self.E_SHT_OFFSET = struct.unpack(Binary.FMT, f.read(Binary.SIZE))[0]
self.E_FLAGS = struct.unpack('<I', f.read(4))[0]
self.E_SIZE = struct.unpack('<H', f.read(2))[0]
self.E_PHT_SIZE = struct.unpack('<H', f.read(2))[0]
self.E_PHT_COUNT = struct.unpack('<H', f.read(2))[0]
self.E_SHT_SIZE = struct.unpack('<H', f.read(2))[0]
self.E_SHT_COUNT = struct.unpack('<H', f.read(2))[0]
self.E_SHT_INDEX = struct.unpack('<H', f.read(2))[0]
f.seek(self.E_PHT_OFFSET)
# Elf Program Header Table
Binary.E_SEGMENTS = [Segment(f) for entry in xrange(self.E_PHT_COUNT)]
f.seek(self.E_SHT_OFFSET)
# Elf Section Header Table
Binary.E_SECTIONS = [Section(f) for entry in xrange(self.E_SHT_COUNT)]
def procomp(self, processor, pointer, til):
# Processor Type
idc.set_processor_type(processor, SETPROC_LOADER)
# Compiler Attributes
idc.set_inf_attr(INF_COMPILER, COMP_GNU)
idc.set_inf_attr(INF_MODEL, pointer)
idc.set_inf_attr(INF_SIZEOF_BOOL, 0x1)
idc.set_inf_attr(INF_SIZEOF_LONG, 0x8)
idc.set_inf_attr(INF_SIZEOF_LDBL, 0x10 if self.EI_CLASS == 0x2 else 0x8)
# Type Library
idc.add_default_til(til)
# Loader Flags
idc.set_inf_attr(INF_LFLAGS, LFLG_64BIT if self.EI_CLASS == 0x2 else LFLG_PC_FLAT)
# Assume GCC3 Names
idc.set_inf_attr(INF_DEMNAMES, DEMNAM_GCC3)
# File Type
idc.set_inf_attr(INF_FILETYPE, FT_ELF)
# Analysis Flags
idc.set_inf_attr(INF_AF, 0xC7FFFFD7)
# Return Bitsize
return self.EI_CLASS
class Segment:
__slots__ = ('TYPE', 'FLAGS', 'OFFSET', 'MEM_ADDR',
'FILE_ADDR', 'FILE_SIZE', 'MEM_SIZE', 'ALIGNMENT')
# Segment Types
PT_NULL = 0x0
PT_LOAD = 0x1
PT_DYNAMIC = 0x2
PT_INTERP = 0x3
PT_NOTE = 0x4
PT_SHLIB = 0x5
PT_PHDR = 0x6
PT_TLS = 0x7
PT_NUM = 0x8
PT_SCE_DYNLIBDATA = 0x61000000
PT_SCE_PROCPARAM = 0x61000001
PT_SCE_MODULEPARAM = 0x61000002
PT_SCE_RELRO = 0x61000010
PT_GNU_EH_FRAME = 0x6474e550
PT_GNU_STACK = 0x6474e551
PT_SCE_COMMENT = 0x6fffff00
PT_SCE_LIBVERSION = 0x6fffff01
PT_HIOS = 0x6fffffff
PT_LOPROC = 0x70000000
PT_SCE_SEGSYM = 0x700000A8
PT_HIPROC = 0x7fffffff
# Segment Alignments
AL_NONE = 0x0
AL_BYTE = 0x1
AL_WORD = 0x2
AL_DWORD = 0x4
AL_QWORD = 0x8
AL_PARA = 0x10
AL_4K = 0x4000
def __init__(self, f):
self.TYPE = struct.unpack('<I', f.read(4))[0]
if Binary.FMT == '<I':
self.OFFSET = struct.unpack(Binary.FMT, f.read(Binary.SIZE))[0]
self.MEM_ADDR = struct.unpack(Binary.FMT, f.read(Binary.SIZE))[0]
self.FILE_ADDR = struct.unpack(Binary.FMT, f.read(Binary.SIZE))[0]
self.FILE_SIZE = struct.unpack(Binary.FMT, f.read(Binary.SIZE))[0]
self.MEM_SIZE = struct.unpack(Binary.FMT, f.read(Binary.SIZE))[0]
self.FLAGS = struct.unpack(Binary.FMT, f.read(Binary.SIZE))[0]
self.ALIGNMENT = struct.unpack(Binary.FMT, f.read(Binary.SIZE))[0]
else:
self.FLAGS = struct.unpack('<I', f.read(4))[0]
self.OFFSET = struct.unpack(Binary.FMT, f.read(Binary.SIZE))[0]
self.MEM_ADDR = struct.unpack(Binary.FMT, f.read(Binary.SIZE))[0]
self.FILE_ADDR = struct.unpack(Binary.FMT, f.read(Binary.SIZE))[0]
self.FILE_SIZE = struct.unpack(Binary.FMT, f.read(Binary.SIZE))[0]
self.MEM_SIZE = struct.unpack(Binary.FMT, f.read(Binary.SIZE))[0]
self.ALIGNMENT = struct.unpack(Binary.FMT, f.read(Binary.SIZE))[0]
def alignment(self):
return {
Segment.AL_NONE : saAbs,
Segment.AL_BYTE : saRelByte,
Segment.AL_WORD : saRelWord,
Segment.AL_DWORD : saRelDble,
Segment.AL_QWORD : saRelQword,
Segment.AL_PARA : saRelPara,
Segment.AL_4K : saRel4K,
}.get(self.ALIGNMENT, saRel_MAX_ALIGN_CODE)
def flags(self):
return self.FLAGS & 0xF
def name(self):
return {
Segment.PT_NULL : 'NULL',
Segment.PT_LOAD : 'CODE' if self.flags() == (SEGPERM_EXEC | SEGPERM_READ) else 'DATA',
Segment.PT_DYNAMIC : 'DYNAMIC',
Segment.PT_INTERP : 'INTERP',
Segment.PT_NOTE : 'NOTE',
Segment.PT_SHLIB : 'SHLIB',
Segment.PT_PHDR : 'PHDR',
Segment.PT_TLS : 'TLS',
Segment.PT_NUM : 'NUM',
Segment.PT_SCE_DYNLIBDATA : 'SCE_DYNLIBDATA',
Segment.PT_SCE_PROCPARAM : 'SCE_PROCPARAM',
Segment.PT_SCE_MODULEPARAM : 'SCE_MODULEPARAM',
Segment.PT_SCE_RELRO : 'SCE_RELRO',
Segment.PT_GNU_EH_FRAME : 'GNU_EH_FRAME',
Segment.PT_GNU_STACK : 'GNU_STACK',
Segment.PT_SCE_COMMENT : 'SCE_COMMENT',
Segment.PT_SCE_LIBVERSION : 'SCE_LIBVERSION',
}.get(self.TYPE, 'UNK')
def struct(self, name, members, location = 0x0):
if self.FLAGS > 7:
return idc.get_struc_id(name)
entry = idc.add_struc(BADADDR, name, False)
for (member, comment, size) in members:
flags = idaapi.get_flags_by_size(size)
if member in ['function', 'offset', 'd_name']:
idc.add_struc_member(entry, member, location, flags + FF_0OFF, BADADDR, size, BADADDR, 0, REF_OFF64)
else:
idc.add_struc_member(entry, member, location, flags, BADADDR, size)
idc.set_member_cmt(entry, location, comment, False)
location += size
return entry
def type(self):
return {
Segment.PT_LOAD : 'CODE' if self.flags() == (SEGPERM_EXEC | SEGPERM_READ) else 'DATA',
Segment.PT_DYNAMIC : 'DATA',
Segment.PT_INTERP : 'CONST',
Segment.PT_NOTE : 'CONST',
Segment.PT_PHDR : 'CODE',
Segment.PT_TLS : 'BSS',
Segment.PT_SCE_DYNLIBDATA : 'CONST',
Segment.PT_SCE_PROCPARAM : 'CONST',
Segment.PT_SCE_MODULEPARAM : 'CONST',
Segment.PT_SCE_RELRO : 'DATA',
Segment.PT_GNU_EH_FRAME : 'CONST',
Segment.PT_GNU_STACK : 'DATA',
}.get(self.TYPE, 'UNK')
class Section:
__slots__ = ('NAME', 'TYPE', 'FLAGS', 'MEM_ADDR',
'OFFSET', 'FILE_SIZE', 'LINK', 'INFO',
'ALIGNMENT', 'FSE_SIZE')
def __init__(self, f):
self.NAME = struct.unpack('<I', f.read(4))[0]
self.TYPE = struct.unpack('<I', f.read(4))[0]
self.FLAGS = struct.unpack(Binary.FMT, f.read(Binary.SIZE))[0]
self.MEM_ADDR = struct.unpack(Binary.FMT, f.read(Binary.SIZE))[0]
self.OFFSET = struct.unpack(Binary.FMT, f.read(Binary.SIZE))[0]
self.FILE_SIZE = struct.unpack(Binary.FMT, f.read(Binary.SIZE))[0]
self.LINK = struct.unpack('<I', f.read(4))[0]
self.INFO = struct.unpack('<I', f.read(4))[0]
self.ALIGNMENT = struct.unpack(Binary.FMT, f.read(Binary.SIZE))[0]
self.FSE_SIZE = struct.unpack(Binary.FMT, f.read(Binary.SIZE))[0]
class Dynamic:
__slots__ = ('TAG', 'VALUE', 'ID', 'VERSION_MAJOR', 'VERSION_MINOR', 'INDEX')
# Dynamic Tags
(DT_NULL, DT_NEEDED, DT_PLTRELSZ, DT_PLTGOT, DT_HASH, DT_STRTAB, DT_SYMTAB,
DT_RELA, DT_RELASZ, DT_RELAENT, DT_STRSZ, DT_SYMENT, DT_INIT, DT_FINI,
DT_SONAME, DT_RPATH, DT_SYMBOLIC, DT_REL, DT_RELSZ, DT_RELENT, DT_PLTREL,
DT_DEBUG, DT_TEXTREL, DT_JMPREL, DT_BIND_NOW, DT_INIT_ARRAY, DT_FINI_ARRAY,
DT_INIT_ARRAYSZ, DT_FINI_ARRAYSZ, DT_RUNPATH, DT_FLAGS, DT_ENCODING, DT_PREINIT_ARRAY,
DT_PREINIT_ARRAYSZ) = xrange(0x22)
DT_SCE_IDTABENTSZ = 0x61000005
DT_SCE_FINGERPRINT = 0x61000007
DT_SCE_ORIGINAL_FILENAME = 0x61000009
DT_SCE_MODULE_INFO = 0x6100000d
DT_SCE_NEEDED_MODULE = 0x6100000f
DT_SCE_MODULE_ATTR = 0x61000011
DT_SCE_EXPORT_LIB = 0x61000013
DT_SCE_IMPORT_LIB = 0x61000015
DT_SCE_EXPORT_LIB_ATTR = 0x61000017
DT_SCE_IMPORT_LIB_ATTR = 0x61000019
DT_SCE_STUB_MODULE_NAME = 0x6100001d
DT_SCE_STUB_MODULE_VERSION = 0x6100001f
DT_SCE_STUB_LIBRARY_NAME = 0x61000021
DT_SCE_STUB_LIBRARY_VERSION = 0x61000023
DT_SCE_HASH = 0x61000025
DT_SCE_PLTGOT = 0x61000027
DT_SCE_JMPREL = 0x61000029
DT_SCE_PLTREL = 0x6100002b
DT_SCE_PLTRELSZ = 0x6100002d
DT_SCE_RELA = 0x6100002f
DT_SCE_RELASZ = 0x61000031
DT_SCE_RELAENT = 0x61000033
DT_SCE_STRTAB = 0x61000035
DT_SCE_STRSZ = 0x61000037
DT_SCE_SYMTAB = 0x61000039
DT_SCE_SYMENT = 0x6100003b
DT_SCE_HASHSZ = 0x6100003d
DT_SCE_SYMTABSZ = 0x6100003f
DT_SCE_HIOS = 0x6ffff000
DT_GNU_HASH = 0x6ffffef5
DT_VERSYM = 0x6ffffff0
DT_RELACOUNT = 0x6ffffff9
DT_RELCOUNT = 0x6ffffffa
DT_FLAGS_1 = 0x6ffffffb
DT_VERDEF = 0x6ffffffc
DT_VERDEFNUM = 0x6ffffffd
def __init__(self, f):
self.TAG = struct.unpack(Binary.FMT, f.read(Binary.SIZE))[0]
self.VALUE = struct.unpack(Binary.FMT, f.read(Binary.SIZE))[0]
def tag(self):
return {
Dynamic.DT_NULL : 'DT_NULL',
Dynamic.DT_NEEDED : 'DT_NEEDED',
Dynamic.DT_PLTRELSZ : 'DT_PLTRELSZ',
Dynamic.DT_PLTGOT : 'DT_PLTGOT',
Dynamic.DT_HASH : 'DT_HASH',
Dynamic.DT_STRTAB : 'DT_STRTAB',
Dynamic.DT_SYMTAB : 'DT_SYMTAB',
Dynamic.DT_RELA : 'DT_RELA',
Dynamic.DT_RELASZ : 'DT_RELASZ',
Dynamic.DT_RELAENT : 'DT_RELAENT',
Dynamic.DT_STRSZ : 'DT_STRSZ',
Dynamic.DT_SYMENT : 'DT_SYMENT',
Dynamic.DT_INIT : 'DT_INIT',
Dynamic.DT_FINI : 'DT_FINI',
Dynamic.DT_SONAME : 'DT_SONAME',
Dynamic.DT_RPATH : 'DT_RPATH',
Dynamic.DT_SYMBOLIC : 'DT_SYMBOLIC',
Dynamic.DT_REL : 'DT_REL',
Dynamic.DT_RELSZ : 'DT_RELSZ',
Dynamic.DT_RELENT : 'DT_RELENT',
Dynamic.DT_PLTREL : 'DT_PLTREL',
Dynamic.DT_DEBUG : 'DT_DEBUG',
Dynamic.DT_TEXTREL : 'DT_TEXTREL',
Dynamic.DT_JMPREL : 'DT_JMPREL',
Dynamic.DT_BIND_NOW : 'DT_BIND_NOW',
Dynamic.DT_INIT_ARRAY : 'DT_INIT_ARRAY',
Dynamic.DT_FINI_ARRAY : 'DT_FINI_ARRAY',
Dynamic.DT_INIT_ARRAYSZ : 'DT_INIT_ARRAYSZ',
Dynamic.DT_FINI_ARRAYSZ : 'DT_FINI_ARRAYSZ',
Dynamic.DT_RUNPATH : 'DT_RUN_PATH',
Dynamic.DT_FLAGS : 'DT_FLAGS',
Dynamic.DT_ENCODING : 'DT_ENCODING',
Dynamic.DT_PREINIT_ARRAY : 'DT_PREINIT_ARRAY',
Dynamic.DT_PREINIT_ARRAYSZ : 'DT_PREINIT_ARRAYSZ',
Dynamic.DT_SCE_IDTABENTSZ : 'DT_SCE_IDTABENTSZ',
Dynamic.DT_SCE_FINGERPRINT : 'DT_SCE_FINGERPRINT',
Dynamic.DT_SCE_ORIGINAL_FILENAME : 'DT_SCE_ORIGINAL_FILENAME',
Dynamic.DT_SCE_MODULE_INFO : 'DT_SCE_MODULE_INFO',
Dynamic.DT_SCE_NEEDED_MODULE : 'DT_SCE_NEEDED_MODULE',
Dynamic.DT_SCE_MODULE_ATTR : 'DT_SCE_MODULE_ATTR',
Dynamic.DT_SCE_EXPORT_LIB : 'DT_SCE_EXPORT_LIB',
Dynamic.DT_SCE_IMPORT_LIB : 'DT_SCE_IMPORT_LIB',
Dynamic.DT_SCE_EXPORT_LIB_ATTR : 'DT_SCE_EXPORT_LIB_ATTR',
Dynamic.DT_SCE_IMPORT_LIB_ATTR : 'DT_SCE_IMPORT_LIB_ATTR',
Dynamic.DT_SCE_STUB_MODULE_NAME : 'DT_SCE_STUB_MODULE_NAME',
Dynamic.DT_SCE_STUB_MODULE_VERSION : 'DT_SCE_STUB_MODULE_VERSION',
Dynamic.DT_SCE_STUB_LIBRARY_NAME : 'DT_SCE_STUB_LIBRARY_NAME',
Dynamic.DT_SCE_STUB_LIBRARY_VERSION : 'DT_SCE_STUB_LIBRARY_VERSION',
Dynamic.DT_SCE_HASH : 'DT_SCE_HASH',
Dynamic.DT_SCE_PLTGOT : 'DT_SCE_PLTGOT',
Dynamic.DT_SCE_JMPREL : 'DT_SCE_JMPREL',
Dynamic.DT_SCE_PLTREL : 'DT_SCE_PLTREL',
Dynamic.DT_SCE_PLTRELSZ : 'DT_SCE_PLTRELSZ',
Dynamic.DT_SCE_RELA : 'DT_SCE_RELA',
Dynamic.DT_SCE_RELASZ : 'DT_SCE_RELASZ',
Dynamic.DT_SCE_RELAENT : 'DT_SCE_RELAENT',
Dynamic.DT_SCE_STRTAB : 'DT_SCE_STRTAB',
Dynamic.DT_SCE_STRSZ : 'DT_SCE_STRSZ',
Dynamic.DT_SCE_SYMTAB : 'DT_SCE_SYMTAB',
Dynamic.DT_SCE_SYMENT : 'DT_SCE_SYMENT',
Dynamic.DT_SCE_HASHSZ : 'DT_SCE_HASHSZ',
Dynamic.DT_SCE_SYMTABSZ : 'DT_SCE_SYMTABSZ',
Dynamic.DT_SCE_HIOS : 'DT_SCE_HIOS',
Dynamic.DT_GNU_HASH : 'DT_GNU_HASH',
Dynamic.DT_VERSYM : 'DT_VERSYM',
Dynamic.DT_RELACOUNT : 'DT_RELACOUNT',
Dynamic.DT_RELCOUNT : 'DT_RELCOUNT',
Dynamic.DT_FLAGS_1 : 'DT_FLAGS_1',
Dynamic.DT_VERDEF : 'DT_VERDEF',
Dynamic.DT_VERDEFNUM : 'DT_VERDEFNUM',
}.get(self.TAG, 'Missing Dynamic Tag!!!')
def lib_attribute(self):
return {
0x1 : 'AUTO_EXPORT',
0x2 : 'WEAK_EXPORT',
0x8 : 'LOOSE_IMPORT',
0x9 : 'AUTO_EXPORT|LOOSE_IMPORT',
0x10 : 'WEAK_EXPORT|LOOSE_IMPORT',
}.get(self.INDEX, 'Missing Import Library Attribute!!!')
def mod_attribute(self):
return {
0x0 : 'NONE',
0x1 : 'SCE_CANT_STOP',
0x2 : 'SCE_EXCLUSIVE_LOAD',
0x4 : 'SCE_EXCLUSIVE_START',
0x8 : 'SCE_CAN_RESTART',
0x10 : 'SCE_CAN_RELOCATE',
0x20 : 'SCE_CANT_SHARE',
}.get(self.INDEX, 'Missing Module Attribute!!!')
def process(self, dumped, stubs, modules):
if self.TAG == Dynamic.DT_NEEDED:
stubs[self.VALUE] = 0
elif self.TAG == Dynamic.DT_PLTGOT:
self.VALUE += dumped
Dynamic.PLTGOT = self.VALUE
elif self.TAG == Dynamic.DT_HASH:
self.VALUE += dumped
Dynamic.HASH = self.VALUE
elif self.TAG == Dynamic.DT_STRTAB:
self.VALUE += dumped
Dynamic.STRTAB = self.VALUE
elif self.TAG == Dynamic.DT_SYMTAB:
self.VALUE += dumped
Dynamic.SYMTAB = self.VALUE
elif self.TAG == Dynamic.DT_STRSZ:
Dynamic.STRSZ = self.VALUE
elif self.TAG == Dynamic.DT_INIT:
self.VALUE += dumped
Dynamic.INIT = self.VALUE
elif self.TAG == Dynamic.DT_FINI:
self.VALUE += dumped
Dynamic.FINI = self.VALUE
elif self.TAG == Dynamic.DT_SONAME:
stubs[self.VALUE] = 0
elif self.TAG == Dynamic.DT_SCE_STRTAB:
self.VALUE += dumped
Dynamic.DYNSTR = self.VALUE
elif self.TAG == Dynamic.DT_SCE_STRSZ:
Dynamic.DYNSTRSZ = self.VALUE
elif self.TAG == Dynamic.DT_SCE_SYMTAB:
self.VALUE += dumped
Dynamic.DYNSYM = self.VALUE
elif self.TAG == Dynamic.DT_SCE_SYMTABSZ:
Dynamic.DYNSYMSZ = self.VALUE
elif self.TAG == Dynamic.DT_SCE_JMPREL:
self.VALUE += dumped
Dynamic.JMPTAB = self.VALUE
elif self.TAG == Dynamic.DT_SCE_PLTRELSZ:
Dynamic.JMPTABSZ = self.VALUE
elif self.TAG == Dynamic.DT_SCE_PLTREL:
if self.VALUE == 0x7:
return '%s | %#x | DT_RELA' % (self.tag(), self.VALUE)
elif self.TAG == Dynamic.DT_SCE_RELA:
self.VALUE += dumped
Dynamic.RELATAB = self.VALUE
elif self.TAG == Dynamic.DT_SCE_RELASZ:
Dynamic.RELATABSZ = self.VALUE
elif self.TAG == Dynamic.DT_SCE_HASH:
self.VALUE += dumped
Dynamic.HASHTAB = self.VALUE
elif self.TAG == Dynamic.DT_SCE_HASHSZ:
Dynamic.HASHTABSZ = self.VALUE
elif self.TAG == Dynamic.DT_SCE_PLTGOT:
self.VALUE += dumped
Dynamic.GOT = self.VALUE
elif self.TAG in [Dynamic.DT_SCE_NEEDED_MODULE, Dynamic.DT_SCE_IMPORT_LIB,
Dynamic.DT_SCE_IMPORT_LIB_ATTR, Dynamic.DT_SCE_EXPORT_LIB,
Dynamic.DT_SCE_EXPORT_LIB_ATTR, Dynamic.DT_SCE_MODULE_INFO,
Dynamic.DT_SCE_MODULE_ATTR, Dynamic.DT_SCE_ORIGINAL_FILENAME]:
self.ID = self.VALUE >> 48
self.VERSION_MINOR = (self.VALUE >> 40) & 0xF
self.VERSION_MAJOR = (self.VALUE >> 32) & 0xF
self.INDEX = self.VALUE & 0xFFF
if self.TAG in [Dynamic.DT_SCE_NEEDED_MODULE, Dynamic.DT_SCE_MODULE_INFO]:
if self.INDEX not in modules:
modules[self.INDEX] = 0
return '%s | %#x | MID:%#x Version:%i.%i | %#x' % \
(self.tag(), self.VALUE, self.ID, self.VERSION_MAJOR, self.VERSION_MINOR, self.INDEX)
elif self.TAG in [Dynamic.DT_SCE_IMPORT_LIB, Dynamic.DT_SCE_EXPORT_LIB]:
if self.INDEX not in modules:
modules[self.INDEX] = 0
return '%s | %#x | LID:%#x Version:%i | %#x' % \
(self.tag(), self.VALUE, self.ID, self.VERSION_MAJOR, self.INDEX)
elif self.TAG == Dynamic.DT_SCE_MODULE_ATTR:
return '%s | %#x | %s' % (self.tag(), self.VALUE, self.mod_attribute())
elif self.TAG in [Dynamic.DT_SCE_IMPORT_LIB_ATTR, Dynamic.DT_SCE_EXPORT_LIB_ATTR]:
return '%s | %#x | LID:%#x Attributes:%s' % \
(self.tag(), self.VALUE, self.ID, self.lib_attribute())
elif self.TAG == Dynamic.DT_SCE_ORIGINAL_FILENAME:
stubs[self.INDEX] = 0
return '%s | %#x' % (self.tag(), self.VALUE)
class Relocation:
__slots__ = ('OFFSET', 'INDEX', 'INFO', 'ADDEND', 'RELSTR')
# PS4 (X86_64) Relocation Codes (40)
(R_X86_64_NONE, R_X86_64_64, R_X86_64_PC32, R_X86_64_GOT32,
R_X86_64_PLT32, R_X86_64_COPY, R_X86_64_GLOB_DAT, R_X86_64_JUMP_SLOT,
R_X86_64_RELATIVE, R_X86_64_GOTPCREL, R_X86_64_32, R_X86_64_32S,
R_X86_64_16, R_X86_64_PC16, R_X86_64_8, R_X86_64_PC8, R_X86_64_DTPMOD64,
R_X86_64_DTPOFF64, R_X86_64_TPOFF64, R_X86_64_TLSGD, R_X86_64_TLSLD,
R_X86_64_DTPOFF32, R_X86_64_GOTTPOFF, R_X86_64_TPOFF32, R_X86_64_PC64,
R_X86_64_GOTOFF64, R_X86_64_GOTPC32, R_X86_64_GOT64, R_X86_64_GOTPCREL64,
R_X86_64_GOTPC64, R_X86_64_GOTPLT64, R_X86_64_PLTOFF64, R_X86_64_SIZE32,
R_X86_64_SIZE64, R_X86_64_GOTPC32_TLSDESC, R_X86_64_TLSDESC_CALL, R_X86_64_TLSDESC,
R_X86_64_IRELATIVE, R_X86_64_RELATIVE64) = xrange(0x27)
R_X86_64_ORBIS_GOTPCREL_LOAD = 0x28
def __init__(self, f):
self.OFFSET = struct.unpack(Binary.FMT, f.read(Binary.SIZE))[0]
self.INFO = struct.unpack(Binary.FMT, f.read(Binary.SIZE))[0]
self.ADDEND = struct.unpack(Binary.FMT, f.read(Binary.SIZE))[0]
def ps4(self):
return {
Relocation.R_X86_64_NONE : 'R_X86_64_NONE',
Relocation.R_X86_64_64 : 'R_X86_64_64',
Relocation.R_X86_64_PC32 : 'R_X86_64_PC32',
Relocation.R_X86_64_GOT32 : 'R_X86_64_GOT32',
Relocation.R_X86_64_PLT32 : 'R_X86_64_PLT32',
Relocation.R_X86_64_COPY : 'R_X86_64_COPY',
Relocation.R_X86_64_GLOB_DAT : 'R_X86_64_GLOB_DAT',
Relocation.R_X86_64_JUMP_SLOT : 'R_X86_64_JUMP_SLOT',
Relocation.R_X86_64_RELATIVE : 'R_X86_64_RELATIVE',
Relocation.R_X86_64_GOTPCREL : 'R_X86_64_GOTPCREL',
Relocation.R_X86_64_32 : 'R_X86_64_32',
Relocation.R_X86_64_32S : 'R_X86_64_32S',
Relocation.R_X86_64_16 : 'R_X86_64_16',
Relocation.R_X86_64_PC16 : 'R_X86_64_PC16',
Relocation.R_X86_64_8 : 'R_X86_64_8',
Relocation.R_X86_64_PC8 : 'R_X86_64_PC8',
Relocation.R_X86_64_DTPMOD64 : 'R_X86_64_DTPMOD64',
Relocation.R_X86_64_DTPOFF64 : 'R_X86_64_DTPOFF64',
Relocation.R_X86_64_TPOFF64 : 'R_X86_64_TPOFF64',
Relocation.R_X86_64_TLSGD : 'R_X86_64_TLSGD',
Relocation.R_X86_64_TLSLD : 'R_X86_64_TLSLD',
Relocation.R_X86_64_DTPOFF32 : 'R_X86_64_DTPOFF32',
Relocation.R_X86_64_GOTTPOFF : 'R_X86_64_GOTTPOFF',
Relocation.R_X86_64_TPOFF32 : 'R_X86_64_TPOFF32',
Relocation.R_X86_64_PC64 : 'R_X86_64_PC64',
Relocation.R_X86_64_GOTOFF64 : 'R_X86_64_GOTOFF64',
Relocation.R_X86_64_GOTPC32 : 'R_X86_64_GOTPC32',
Relocation.R_X86_64_GOT64 : 'R_X86_64_GOT64',
Relocation.R_X86_64_GOTPCREL64 : 'R_X86_64_GOTPCREL64',
Relocation.R_X86_64_GOTPC64 : 'R_X86_64_GOTPC64',
Relocation.R_X86_64_GOTPLT64 : 'R_X86_64_GOTPLT64',
Relocation.R_X86_64_PLTOFF64 : 'R_X86_64_PLTOFF64',
Relocation.R_X86_64_SIZE32 : 'R_X86_64_SIZE32',
Relocation.R_X86_64_SIZE64 : 'R_X86_64_SIZE64',
Relocation.R_X86_64_GOTPC32_TLSDESC : 'R_X86_64_GOTPC32_TLSDESC',
Relocation.R_X86_64_TLSDESC_CALL : 'R_X86_64_TLSDESC_CALL',
Relocation.R_X86_64_TLSDESC : 'R_X86_64_TLSDESC',
Relocation.R_X86_64_IRELATIVE : 'R_X86_64_IRELATIVE',
Relocation.R_X86_64_RELATIVE64 : 'R_X86_64_RELATIVE64',
Relocation.R_X86_64_ORBIS_GOTPCREL_LOAD : 'R_X86_64_ORBIS_GOTPCREL_LOAD',
}.get(self.INFO, 'Missing PS4 Relocation Type!!!')
def process(self, dumped, end):
# String (Offset) == Base + AddEnd (B + A)
if self.ps4() in ['R_X86_64_RELATIVE']:
if dumped:
self.OFFSET += dumped
self.ADDEND += dumped
idaapi.create_data(self.OFFSET, FF_QWORD, 0x8, BADNODE)
idaapi.put_qword(self.OFFSET, self.ADDEND)
if end < self.ADDEND:
idaapi.create_data(self.ADDEND, FF_QWORD, 0x8, BADNODE)
return '%#x | %s | %#x' % (self.OFFSET, self.ps4(), self.ADDEND)
class Symbol:
__slots__ = ('NAME', 'INFO', 'OTHER', 'INDEX', 'VALUE', 'SIZE')
# Symbol Information
ST_LOCAL_NONE = 0x0
ST_LOCAL_OBJECT = 0x1
ST_LOCAL_FUNCTION = 0x2
ST_LOCAL_SECTION = 0x3
ST_LOCAL_FILE = 0x4
ST_LOCAL_COMMON = 0x5
ST_LOCAL_TLS = 0x6
ST_GLOBAL_NONE = 0x10
ST_GLOBAL_OBJECT = 0x11
ST_GLOBAL_FUNCTION = 0x12
ST_GLOBAL_SECTION = 0x13
ST_GLOBAL_FILE = 0x14
ST_GLOBAL_COMMON = 0x15
ST_GLOBAL_TLS = 0x16
ST_WEAK_NONE = 0x20
ST_WEAK_OBJECT = 0x21
ST_WEAK_FUNCTION = 0x22
ST_WEAK_SECTION = 0x23
ST_WEAK_FILE = 0x24
ST_WEAK_COMMON = 0x25
ST_WEAK_TLS = 0x26
def __init__(self, f):
self.NAME = struct.unpack('<I', f.read(4))[0]
if Binary.FMT == '<I':
self.VALUE = struct.unpack('<I', f.read(4))[0]
self.SIZE = struct.unpack('<I', f.read(4))[0]
self.INFO = struct.unpack('<B', f.read(1))[0]
self.OTHER = struct.unpack('<B', f.read(1))[0]
self.INDEX = struct.unpack('<H', f.read(2))[0]
else:
self.INFO = struct.unpack('<B', f.read(1))[0]
self.OTHER = struct.unpack('<B', f.read(1))[0]
self.INDEX = struct.unpack('<H', f.read(2))[0]
self.VALUE = struct.unpack('<Q', f.read(8))[0]
self.SIZE = struct.unpack('<Q', f.read(8))[0]
def info(self):
return {
Symbol.ST_LOCAL_NONE : 'Local : None',
Symbol.ST_LOCAL_OBJECT : 'Local : Object',
Symbol.ST_LOCAL_FUNCTION : 'Local : Function',
Symbol.ST_LOCAL_SECTION : 'Local : Section',
Symbol.ST_LOCAL_FILE : 'Local : File',
Symbol.ST_LOCAL_COMMON : 'Local : Common',
Symbol.ST_LOCAL_TLS : 'Local : TLS',
Symbol.ST_GLOBAL_NONE : 'Global : None',
Symbol.ST_GLOBAL_OBJECT : 'Global : Object',
Symbol.ST_GLOBAL_FUNCTION : 'Global : Function',
Symbol.ST_GLOBAL_SECTION : 'Global : Section',
Symbol.ST_GLOBAL_FILE : 'Global : File',
Symbol.ST_GLOBAL_COMMON : 'Global : Common',
Symbol.ST_GLOBAL_TLS : 'Global : TLS',
Symbol.ST_WEAK_NONE : 'Weak : None',
Symbol.ST_WEAK_OBJECT : 'Weak : Object',
Symbol.ST_WEAK_FUNCTION : 'Weak : Function',
Symbol.ST_WEAK_SECTION : 'Weak : Section',
Symbol.ST_WEAK_FILE : 'Weak : File',
Symbol.ST_WEAK_COMMON : 'Weak : Common',
Symbol.ST_WEAK_TLS : 'Weak : TLS',
}.get(self.INFO, 'Missing Symbol Information!!!')
def process(self, functions):
if self.NAME != 0:
functions[self.NAME] = 0
if 'Function' in self.info():
idaapi.add_func(self.VALUE, BADADDR)
return self.info()
def resolve(self, function):
if 'Function' in self.info() and self.VALUE > 0:
idc.set_name(self.VALUE, function, SN_NOCHECK | SN_NOWARN)
# PROGRAM START
# Chendo's cdevsw con-struct-or
def chendo(address, end, search, struct):
while address < end:
address = idaapi.find_binary(address, end, search, 0x10, SEARCH_DOWN)
idaapi.do_unknown_range(address, 0xB0, 0)
idaapi.create_struct(address, 0xB0, struct)
address += 0x8
# Kiwidog's __stack_chk_fail
def kiwidog(address, end, search):
magic = idaapi.find_binary(address, end, search, 0x0, SEARCH_DOWN)
function = idaapi.get_func(idaapi.get_first_dref_to(magic))
idaapi.set_name(function.start_ea, '__stack_chk_fail', SN_NOCHECK | SN_NOWARN)
function.flags |= FUNC_NORET
idaapi.update_func(function)
# Pablo's IDC
def pablo(address, end, search):
while address < end:
address = idaapi.find_binary(address, end, search, 0x10, SEARCH_DOWN)
if address > idaapi.get_segm_by_name('CODE').end_ea:
offset = address - 0x3
if idaapi.isUnknown(idaapi.getFlags(offset)):
if idaapi.get_qword(offset) <= end:
idaapi.create_data(offset, FF_QWORD, 0x8, BADNODE)
address = offset + 4
else:
idaapi.do_unknown(address, 0)
idaapi.create_insn(address)
idaapi.add_func(address, BADADDR)
address += 4
# Znullptr's Syscalls
def znullptr(address, end, search, struct):
magic = idaapi.find_binary(address, end, search, 0x10, idc.SEARCH_DOWN)
pattern = '%02X %02X %02X %02X FF FF FF FF' % (magic & 0xFF, ((magic >> 0x8) & 0xFF), ((magic >> 0x10) & 0xFF), ((magic >> 0x18) & 0xFF))
sysvec = idaapi.find_binary(address, cvar.inf.maxEA, pattern, 0x10, idc.SEARCH_UP) - 0x60
idaapi.set_name(sysvec, 'sysentvec', SN_NOCHECK | SN_NOWARN)
sysent = idaapi.get_qword(sysvec + 0x8)
idaapi.set_name(sysent, 'sv_table', SN_NOCHECK | SN_NOWARN)
sysnames = idaapi.get_qword(sysvec + 0xD0)
idaapi.set_name(sysnames, 'sv_syscallnames', SN_NOCHECK | SN_NOWARN)
# Get the list of syscalls
offset = idaapi.find_binary(address, cvar.inf.maxEA, '73 79 73 63 61 6C 6C 00 65 78 69 74 00', 0x10, SEARCH_DOWN)
numsyscalls = idaapi.get_qword(sysvec)
for entry in xrange(numsyscalls):
initial = sysnames + (entry * 0x8)
idc.create_data(initial, FF_QWORD, 0x8, BADNODE)
offset = idaapi.get_qword(initial)
length = idaapi.get_max_strlit_length(offset, STRTYPE_C)
name = idaapi.get_strlit_contents(offset, length, STRTYPE_C)
sysentoffset = sysent + 0x8 + (entry * 0x30)
idaapi.do_unknown_range(sysentoffset - 0x8, 0x30, 0)
idaapi.create_struct(sysentoffset - 0x8, 0x30, struct)
idc.set_cmt(sysentoffset - 0x8, '#%i' % entry, False)
if '{' in name:
continue
# Rename the functions
function = idaapi.get_qword(sysentoffset)
idaapi.set_name(function, name.replace('#', 'sys_'), SN_NOCHECK | SN_NOWARN)
# Open File Dialog...
def accept_file(f, n):
try:
if not isinstance(n, (int, long)) or n == 0:
return 'PS4 - Kernel' if f.read(4) == '\x7FELF' and Binary(f).E_TYPE == Binary(f).ET_EXEC else 0
except:
pass
# Load Input Binary...
def load_file(f, neflags, format):
print('# PS4 Kernel Loader')
ps = Binary(f)
# PS4 Processor, Compiler, Library
bitness = ps.procomp('metapc', CM_N64 | CM_M_NN | CM_CC_FASTCALL, 'gnulnx_x64')
# Segment Loading...
for segm in ps.E_SEGMENTS:
if segm.name() == 'PHDR':
kASLR = False if segm.FILE_SIZE == 0x118 else True
# Process Loadable Segments...
if segm.name() in ['CODE', 'DATA', 'SCE_RELRO']:
address = segm.MEM_ADDR
size = segm.MEM_SIZE
# Dumped Kernel Fix-ups
if segm.name() in ['DATA', 'SCE_RELRO'] and (idaapi.get_segm_by_name('CODE').start_ea != 0xFFFFFFFF82200000 or not kASLR):
offset = address - idaapi.get_segm_by_name('CODE').start_ea
dumped = segm.MEM_SIZE
else:
offset = segm.OFFSET
dumped = segm.FILE_SIZE
print('# Creating %s Segment...' % segm.name())
f.file2base(offset, address, address + dumped, FILEREG_PATCHABLE)
idaapi.add_segm(0, address, address + size, segm.name(), segm.type(), ADDSEG_NOTRUNC | ADDSEG_FILLGAP)
# Processor Specific Segment Details
idc.set_segm_addressing(address, bitness)
idc.set_segm_alignment(address, segm.alignment())
idc.set_segm_attr(address, SEGATTR_PERM, segm.flags())
# Process Dynamic Segment...
elif segm.name() == 'DYNAMIC':
code = idaapi.get_segm_by_name('CODE')
data = idaapi.get_segm_by_name('DATA')
relro = idaapi.get_segm_by_name('SCE_RELRO')
# ------------------------------------------------------------------------------------------------------------
# Dynamic Tag Entry Structure
members = [('tag', 'Tag', 0x8),
('value', 'Value', 0x8)]
struct = segm.struct('Tag', members)
# Dynamic Tag Table
stubs = {}
modules = {}
location = segm.MEM_ADDR
# Dumps are offset by a small amount
if code.start_ea != 0xFFFFFFFF82200000:
dumped = code.start_ea - 0xFFFFFFFF82200000
else:
dumped = 0
f.seek(location - code.start_ea)
for entry in xrange(segm.MEM_SIZE / 0x10):
idaapi.create_struct(location + (entry * 0x10), 0x10, struct)
idc.set_cmt(location + (entry * 0x10), Dynamic(f).process(dumped, stubs, modules), False)
# ------------------------------------------------------------------------------------------------------------
# Hash Entry Structure
members = [('bucket', 'Bucket', 0x2),
('chain', 'Chain', 0x2),
('buckets', 'Buckets', 0x2),
('chains', 'Chains', 0x2)]
struct = segm.struct('Hash', members)
# Hash Table
try:
location = Dynamic.HASHTAB
size = Dynamic.HASHTABSZ
except:
location = Dynamic.HASH
size = Dynamic.SYMTAB - location
f.seek(location - code.start_ea)
for entry in xrange(size / 0x8):
idaapi.create_struct(location + (entry * 0x8), 0x8, struct)
if kASLR:
# --------------------------------------------------------------------------------------------------------
# Relocation Entry Structure (with specific addends)
members = [('offset', 'Offset (String Index)', 0x8),
('info', 'Info (Symbol Index : Relocation Code)', 0x8),
('addend', 'AddEnd', 0x8)]
struct = segm.struct('Relocation', members)
# Relocation Table (with specific addends)
location = Dynamic.RELATAB
f.seek(location - code.start_ea)
for entry in xrange(Dynamic.RELATABSZ / 0x18):
idaapi.create_struct(location + (entry * 0x18), 0x18, struct)
idc.set_cmt(location + (entry * 0x18), Relocation(f).process(dumped, code.end_ea), False)
# Initialization Function
idc.add_entry(Dynamic.INIT, Dynamic.INIT, '.init', True)
else:
# --------------------------------------------------------------------------------------------------------
# Symbol Entry Structure
members = [('name', 'Name (String Index)', 0x4),
('info', 'Info (Binding : Type)', 0x1),
('other', 'Other', 0x1),
('shtndx', 'Section Index', 0x2),
('offset', 'Value', 0x8),
('size', 'Size', 0x8)]
struct = segm.struct('Symbol', members)
# Symbol Table
location = Dynamic.SYMTAB
f.seek(location - code.start_ea)
functions = {}
# .symtab
idc.add_entry(location, location, '.symtab', False)
for entry in xrange((Dynamic.STRTAB - location) / 0x18):
idaapi.create_struct(location + (entry * 0x18), 0x18, struct)
idc.set_cmt(location + (entry * 0x18), Symbol(f).process(functions), False)
# --------------------------------------------------------------------------------------------------------
# Dynamic String Table
location = Dynamic.STRTAB
# .strtab
idc.add_entry(location, location, '.strtab', False)
# Functions
for key in functions:
idc.create_strlit(location + key, BADADDR)
functions[key] = idc.get_strlit_contents(location + key, BADADDR)
idc.set_cmt(location + key, 'Function', False)
functions = sorted(functions.iteritems(), key = operator.itemgetter(0))
#print('Functions: %s' % functions)
# Resolve Functions
location = Dynamic.SYMTAB
f.seek(location - code.start_ea + 0x18)
for entry in xrange((Dynamic.STRTAB - location - 0x18) / 0x18):
Symbol(f).resolve(functions[entry][1])
# Fix-up
if kASLR:
address = relro.start_ea
del_items(address, DELIT_SIMPLE, relro.end_ea - address)
while address < relro.end_ea:
create_data(address, FF_QWORD, 0x8, BADNODE)
address += 0x8
address = code.start_ea
# ELF Header Structure
members = [('File format', 0x4),
('File class', 0x1),
('Data encoding', 0x1),
('File version', 0x1),
('OS/ABI', 0x1),
('ABI version', 0x1),
('Padding', 0x7),
('File type', 0x2),
('Machine', 0x2),
('File version', 0x4),
('Entry point', 0x8),
('PHT file offset', 0x8),
('SHT file offset', 0x8),
('Processor-specific flags', 0x4),
('ELF header size', 0x2),
('PHT entry size', 0x2),
('Number of entries in PHT', 0x2),
('SHT entry size', 0x2),
('Number of entries in SHT', 0x2),
('SHT entry index for string table\n', 0x2)]
for (comment, size) in members:
flags = idaapi.get_flags_by_size(size)
idc.create_data(address, flags if flags != 0 else FF_STRLIT, size, BADNODE)
idc.set_cmt(address, comment, False)
address += size
for index, entry in enumerate(ps.E_SEGMENTS):
# ELF Program Header Structure
members = [('Type: %s' % entry.name(), 0x4),
('Flags', 0x4),
('File offset', 0x8),
('Virtual address', 0x8),
('Physical address', 0x8),
('Size in file image', 0x8),
('Size in memory image', 0x8),
('Alignment\n', 0x8)]
for (comment, size) in members:
flags = idaapi.get_flags_by_size(size)
idc.create_data(address, flags if flags != 0 else FF_STRLIT, size, BADNODE)
idc.set_cmt(address, comment, False)
address += size
# Wait for the AutoAnalyzer to Complete...
print('# Waiting for the AutoAnalyzer to Complete...')
idaapi.auto_wait()
if kASLR:
# Start Function
idc.add_entry(ps.E_START_ADDR, ps.E_START_ADDR, 'start', True)
# Xfast_syscall