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cemu-idapython/pywraps/py_appcall.py
Arnaud Diederen f9f3ccb63b IDA Pro 6.8 support 
What's new: https://www.hex-rays.com/products/ida/6.8/index.shtml
2015-04-20 14:26:30 +02:00

1032 lines
33 KiB
Python
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try:
import pywraps
pywraps_there = True
except:
pywraps_there = False
import _idaapi
import random
import operator
import datetime
if pywraps_there:
_idaapi.appcall = pywraps.appcall
from py_idaapi import *
else:
import idaapi
from idaapi import *
# ----------------------------------------------------------------------------------------------------------------------------------------------
#<pycode(py_idd)>
import types
# -----------------------------------------------------------------------
class Appcall_array__(object):
"""This class is used with Appcall.array() method"""
def __init__(self, tp):
self.__type = tp
def pack(self, L):
"""Packs a list or tuple into a byref buffer"""
t = type(L)
if not (t == types.ListType or t == types.TupleType):
raise ValueError, "Either a list or a tuple must be passed"
self.__size = len(L)
if self.__size == 1:
self.__typedobj = Appcall__.typedobj(self.__type + ";")
else:
self.__typedobj = Appcall__.typedobj("%s x[%d];" % (self.__type, self.__size))
# Now store the object in a string buffer
ok, buf = self.__typedobj.store(L)
if ok:
return Appcall__.byref(buf)
else:
return None
def try_to_convert_to_list(self, obj):
"""Is this object a list? We check for the existance of attribute zero and attribute self.size-1"""
if not (hasattr(obj, "0") and hasattr(obj, str(self.__size-1))):
return obj
# at this point, we are sure we have an "idc list"
# let us convert to a Python list
return [getattr(obj, str(x)) for x in xrange(0, self.__size)]
def unpack(self, buf, as_list=True):
"""Unpacks an array back into a list or an object"""
# take the value from the special ref object
if isinstance(buf, PyIdc_cvt_refclass__):
buf = buf.value
# we can only unpack from strings
if type(buf) != types.StringType:
raise ValueError, "Cannot unpack this type!"
# now unpack
ok, obj = self.__typedobj.retrieve(buf)
if not ok:
raise ValueError, "Failed while unpacking!"
if not as_list:
return obj
return self.try_to_convert_to_list(obj)
# -----------------------------------------------------------------------
# Wrapper class for the appcall()
class Appcall_callable__(object):
"""
Helper class to issue appcalls using a natural syntax:
appcall.FunctionNameInTheDatabase(arguments, ....)
or
appcall["Function@8"](arguments, ...)
or
f8 = appcall["Function@8"]
f8(arg1, arg2, ...)
or
o = appcall.obj()
i = byref(5)
appcall.funcname(arg1, i, "hello", o)
"""
def __init__(self, ea, tp = None, fld = None):
"""Initializes an appcall with a given function ea"""
self.__ea = ea
self.__type = tp
self.__fields = fld
self.__options = None # Appcall options
self.__timeout = None # Appcall timeout
def __get_timeout(self):
return self.__timeout
def __set_timeout(self, v):
self.__timeout = v
timeout = property(__get_timeout, __set_timeout)
"""An Appcall instance can change its timeout value with this attribute"""
def __get_options(self):
return self.__options if self.__options != None else Appcall__.get_appcall_options()
def __set_options(self, v):
if self.timeout:
# If timeout value is set, then put the timeout flag and encode the timeout value
v |= Appcall__.APPCALL_TIMEOUT | (self.timeout << 16)
else:
# Timeout is not set, then clear the timeout flag
v &= ~Appcall__.APPCALL_TIMEOUT
self.__options = v
options = property(__get_options, __set_options)
"""Sets the Appcall options locally to this Appcall instance"""
def __call__(self, *args):
"""Make object callable. We redirect execution to idaapi.appcall()"""
if self.ea is None:
raise ValueError, "Object not callable!"
# convert arguments to a list
arg_list = list(args)
# Save appcall options and set new global options
old_opt = Appcall__.get_appcall_options()
Appcall__.set_appcall_options(self.options)
# Do the Appcall (use the wrapped version)
e_obj = None
try:
r = _idaapi.appcall(
self.ea,
_idaapi.get_current_thread(),
self.type,
self.fields,
arg_list)
except Exception as e:
e_obj = e
# Restore appcall options
Appcall__.set_appcall_options(old_opt)
# Return or re-raise exception
if e_obj:
raise Exception, e_obj
return r
def __get_ea(self):
return self.__ea
def __set_ea(self, val):
self.__ea = val
ea = property(__get_ea, __set_ea)
"""Returns or sets the EA associated with this object"""
def __get_size(self):
if self.__type == None:
return -1
r = _idaapi.calc_type_size(_idaapi.cvar.idati, self.__type)
if not r:
return -1
return r
size = property(__get_size)
"""Returns the size of the type"""
def __get_type(self):
return self.__type
type = property(__get_type)
"""Returns the typestring"""
def __get_fields(self):
return self.__fields
fields = property(__get_fields)
"""Returns the field names"""
def retrieve(self, src=None, flags=0):
"""
Unpacks a typed object from the database if an ea is given or from a string if a string was passed
@param src: the address of the object or a string
@return: Returns a tuple of boolean and object or error number (Bool, Error | Object).
"""
# Nothing passed? Take the address and unpack from the database
if src is None:
src = self.ea
if type(src) == types.StringType:
return _idaapi.unpack_object_from_bv(_idaapi.cvar.idati, self.type, self.fields, src, flags)
else:
return _idaapi.unpack_object_from_idb(_idaapi.cvar.idati, self.type, self.fields, src, flags)
def store(self, obj, dest_ea=None, base_ea=0, flags=0):
"""
Packs an object into a given ea if provided or into a string if no address was passed.
@param obj: The object to pack
@param dest_ea: If packing to idb this will be the store location
@param base_ea: If packing to a buffer, this will be the base that will be used to relocate the pointers
@return:
- If packing to a string then a Tuple(Boolean, packed_string or error code)
- If packing to the database then a return code is returned (0 is success)
"""
# no ea passed? thus pack to a string
if dest_ea is None:
return _idaapi.pack_object_to_bv(obj,
_idaapi.cvar.idati,
self.type,
self.fields,
base_ea,
flags)
else:
return _idaapi.pack_object_to_idb(obj,
_idaapi.cvar.idati,
self.type,
self.fields,
dest_ea,
flags)
# -----------------------------------------------------------------------
class Appcall_consts__(object):
"""Helper class used by Appcall.Consts attribute
It is used to retrieve constants via attribute access"""
def __init__(self, default=0):
self.__default = default
def __getattr__(self, attr):
return Appcall__.valueof(attr, self.__default)
# -----------------------------------------------------------------------
class Appcall__(object):
APPCALL_MANUAL = 0x1
"""
Only set up the appcall, do not run it.
you should call CleanupAppcall() when finished
"""
APPCALL_DEBEV = 0x2
"""
Return debug event information
If this bit is set, exceptions during appcall
will generate idc exceptions with full
information about the exception
"""
APPCALL_TIMEOUT = 0x4
"""
Appcall with timeout
The timeout value in milliseconds is specified
in the high 2 bytes of the 'options' argument:
If timed out, errbuf will contain "timeout".
"""
def __init__(self):
self.__consts = Appcall_consts__()
def __get_consts(self):
return self.__consts
Consts = property(__get_consts)
"""Use Appcall.Consts.CONST_NAME to access constants"""
@staticmethod
def __name_or_ea(name_or_ea):
"""
Function that accepts a name or an ea and checks if the address is enabled.
If a name is passed then idaapi.get_name_ea() is applied to retrieve the name
@return:
- Returns the resolved EA or
- Raises an exception if the address is not enabled
"""
# a string? try to resolve it
if type(name_or_ea) == types.StringType:
ea = _idaapi.get_name_ea(_idaapi.BADADDR, name_or_ea)
else:
ea = name_or_ea
# could not resolve name or invalid address?
if ea == _idaapi.BADADDR or not _idaapi.isEnabled(ea):
raise ValueError, "Undefined function " + name_or_ea
return ea
@staticmethod
def proto(name_or_ea, prototype, flags = None):
"""
Allows you to instantiate an appcall (callable object) with the desired prototype
@param name_or_ea: The name of the function (will be resolved with LocByName())
@param prototype:
@return:
- On failure it raises an exception if the prototype could not be parsed
or the address is not resolvable
- Returns a callbable Appcall instance with the given prototypes and flags
"""
# resolve and raise exception on error
ea = Appcall__.__name_or_ea(name_or_ea)
# parse the type
if flags is None:
flags = 1 | 2 | 4 # PT_SIL | PT_NDC | PT_TYP
result = _idaapi.idc_parse_decl(_idaapi.cvar.idati, prototype, flags)
if result is None:
raise ValueError, "Could not parse type: " + prototype
# Return the callable method with type info
return Appcall_callable__(ea, result[1], result[2])
def __getattr__(self, name_or_ea):
"""Allows you to call functions as if they were member functions (by returning a callable object)"""
# resolve and raise exception on error
ea = self.__name_or_ea(name_or_ea)
if ea == _idaapi.BADADDR:
raise ValueError, "Undefined function " + name
# Return the callable method
return Appcall_callable__(ea)
def __getitem__(self, idx):
"""
Use self[func_name] syntax if the function name contains invalid characters for an attribute name
See __getattr___
"""
return self.__getattr__(idx)
@staticmethod
def valueof(name, default=0):
"""
Returns the numeric value of a given name string.
If the name could not be resolved then the default value will be returned
"""
t, v = _idaapi.get_name_value(_idaapi.BADADDR, name)
if t == 0: # NT_NONE
v = default
return v
@staticmethod
def int64(v):
"""Whenever a 64bit number is needed use this method to construct an object"""
return PyIdc_cvt_int64__(v)
@staticmethod
def byref(val):
"""
Method to create references to immutable objects
Currently we support references to int/strings
Objects need not be passed by reference (this will be done automatically)
"""
return PyIdc_cvt_refclass__(val)
@staticmethod
def buffer(str = None, size = 0, fill="\x00"):
"""
Creates a string buffer. The returned value (r) will be a byref object.
Use r.value to get the contents and r.size to get the buffer's size
"""
if str is None:
str = ""
left = size - len(str)
if left > 0:
str = str + (fill * left)
r = Appcall__.byref(str)
r.size = size
return r
@staticmethod
def obj(**kwds):
"""Returns an empty object or objects with attributes as passed via its keywords arguments"""
return object_t(**kwds)
@staticmethod
def cstr(val):
return as_cstr(val)
@staticmethod
def unicode(s):
return as_unicode(s)
@staticmethod
def array(type_name):
"""Defines an array type. Later you need to pack() / unpack()"""
return Appcall_array__(type_name)
@staticmethod
def typedobj(typestr, ea=None):
"""
Parses a type string and returns an appcall object.
One can then use retrieve() member method
@param ea: Optional parameter that later can be used to retrieve the type
@return: Appcall object or raises ValueError exception
"""
# parse the type
result = _idaapi.idc_parse_decl(_idaapi.cvar.idati, typestr, 1 | 2 | 4) # PT_SIL | PT_NDC | PT_TYP
if result is None:
raise ValueError, "Could not parse type: " + typestr
# Return the callable method with type info
return Appcall_callable__(ea, result[1], result[2])
@staticmethod
def set_appcall_options(opt):
"""Method to change the Appcall options globally (not per Appcall)"""
old_opt = Appcall__.get_appcall_options()
_idaapi.cvar.inf.appcall_options = opt
return old_opt
@staticmethod
def get_appcall_options():
"""Return the global Appcall options"""
return _idaapi.cvar.inf.appcall_options
@staticmethod
def cleanup_appcall(tid = 0):
"""Equivalent to IDC's CleanupAppcall()"""
return _idaapi.cleanup_appcall(tid)
Appcall = Appcall__()
#</pycode(py_idd)>
# ----------------------------------------------------------------------------------------------------------------------------------------------
#<pycode(appcalltest)>
a = Appcall # Take a shortcut to Appcall
c = Appcall.Consts # take shortcut to constants
# -----------------------------------------------------------------------
# - Adds missing types
# - ...
def init():
# add neeeded types
if a.valueof("ERROR_FILE_NOT_FOUND") == 0:
add_type("MACRO_ERROR")
setattr(c, "ERROR_FILE_NOT_FOUND", 2)
if a.valueof("MEM_COMMIT") == 0:
add_type("MACRO_PAGE")
# open log file
global test_log
try:
test_log = file("python_test.log", "a")
except:
test_log = None
# -----------------------------------------------------------------------
def deinit():
global test_log
test_log.close()
test_log = None
return 1
# -----------------------------------------------------------------------
def logprint(s):
if not test_log:
print s
else:
test_log.write(s + "\n")
return 1
# -----------------------------------------------------------------------
def add_type(t):
print "adding type:", t
idaapi.import_type(idaapi.cvar.idati, 0, t)
# -----------------------------------------------------------------------
def test_init():
hmod = getmodulehandlew(a.unicode("kernel32.dll"))
print "k32hmod=%x" % hmod
if hmod == 0:
return -1
p = getprocaddr(hmod, "VirtualAlloc")
if p == 0:
return -2
print "VirtualAlloc->%x" % p
virtualalloc.ea = p
p = getprocaddr(hmod, "VirtualFree")
if p == 0:
return -3
print "VirtualFree->%x" % p
virtualfree.ea = p
m = virtualalloc(0, c.MEM_COMMIT, 0x1000, c.PAGE_EXECUTE_READWRITE)
idc.RefreshDebuggerMemory()
print "%x: allocated memory\n" % m
global WRITE_AREA
WRITE_AREA = m
return 1
# -----------------------------------------------------------------------
def test_deinit():
virtualfree(WRITE_AREA, 0, c.MEM_FREE)
# -----------------------------------------------------------------------
# Tests changedir/setdir/buffer creation (two methods) and cstr()
def test_enum_files():
# create a buffer
savedpath = a.byref("\x00" * 260)
# get current directory
n = getcurdir(250, savedpath)
out = []
out.append("curdir=%s" % savedpath.value[0:n])
# get windir
windir = a.buffer(size=260) # create a buffer using helper function
n = getwindir(windir, windir.size)
if n == 0:
return -1 # could not get current directory
windir = windir.value[:n]
out.append("windir=%s" % windir)
# change to windows folder
setcurdir(windir)
# initiate find
fd = a.obj()
h = findfirst("*.exe", fd)
if h == -1:
return -2 # no files found!
found = -6
while True:
fn = a.cstr(fd.cFileName)
if "regedit" in fn:
found = 1
out.append("fn=%s<" % fn)
fd = a.obj() # reset the FD object
ok = findnext(h, fd)
if not ok:
break
#
findclose(h)
# restore cur dir
setcurdir(savedpath.value)
# verify
t = a.buffer(size=260)
n = getcurdir(t.size, t)
if t.cstr() != savedpath.cstr():
return -4 # could not restore cur dir
out.append("curdir=%s<" % t.cstr())
# print "all done!"
# for l in out:
# print l
return found
# -----------------------------------------------------------------------
def test_gpa():
h = loadlib("user32.dll")
if h == 0:
print "failed to load library!"
return -1
p = getprocaddr(h, "FindWindowA")
if p == 0:
print "failed to gpa!"
return -2
findwin = a.proto(p, "int FindWindow(LPCTSTR lpClassName, LPCTSTR lpWindowName);")
hwnd = findwin("TIdaWindow", 0)
freelib(h)
print "%x: ok!->hwnd=%x" % (p, hwnd)
return 1
# -----------------------------------------------------------------------
def test_loaddll():
h = loadlib("twain_32.dll")
if h == 0:
print "failed to load twain32 library!"
return -1
return 1
# -----------------------------------------------------------------------
# Packs a simple structure (into the database) and unpacks it back using the idaapi methods
def test_pck_idb_raw():
name, tp, flds = idc.ParseType("struct { int a, b; char x[5];};", 0)
o = a.obj(a=15, b=17,x="hi")
idaapi.pack_object_to_idb(o, idaapi.cvar.idati, tp, flds, WRITE_AREA, 0)
ok, obj = idaapi.unpack_object_from_idb(idaapi.cvar.idati, tp, flds, WRITE_AREA, 0)
if obj.a != 15 and obj.b != 17 and obj != "hi":
return -2
return 1
# -----------------------------------------------------------------------
# Packs a simple structure (into a string) and unpacks it back using the idaapi methods
def test_pck_bv_raw():
name, tp, flds = idc.ParseType("struct { int a; char x[5]; int b;};", 0)
va,vb,vx = 15,17,"hi"
o = a.obj(a=va, b=vb,x=vx)
ok, s = idaapi.pack_object_to_bv(o, idaapi.cvar.idati, tp, flds, WRITE_AREA, 0)
if not ok:
return -1
ok, obj = idaapi.unpack_object_from_idb(idaapi.cvar.idati, tp, flds, WRITE_AREA, 0)
if obj.a != va and obj.b != vb and obj.x != vx:
return -2
return 1
# -----------------------------------------------------------------------
# 1. Unpacks the DOS header at 0x400000 and verify the fields
# 2. Unpacks a string and see if it is unpacked correctly
def test_unpack_raw():
name, tp, flds = idc.ParseType("IMAGE_DOS_HEADER;", 0)
ok, obj = idaapi.unpack_object_from_idb(idaapi.cvar.idati, tp, flds, 0x400000, 0)
if obj.e_magic != 23117 and obj.e_cblp != 144:
return -1
name, tp, flds = idc.ParseType("struct abc_t { int a, b;};", 0)
ok, obj = idaapi.unpack_object_from_bv(idaapi.cvar.idati, tp, flds, "\x01\x00\x00\x00\x02\x00\x00\x00", 0)
if obj.a != 1 and obj.b != 2:
return -2
return 1
# -----------------------------------------------------------------------
# Packs/Unpacks a structure to the database using appcall facilities
def test_pck_idb():
print "%x: ..." % WRITE_AREA
tp = a.typedobj("struct { int a, b; char x[5];};")
o = a.obj(a=16, b=17,x="zzzhi")
if tp.store(o, WRITE_AREA) != 0:
return -1
idc.RefreshDebuggerMemory()
ok, r = tp.retrieve(WRITE_AREA)
if not ok:
return -2
if r.a != o.a and r.b != o.b and r.x != o.x:
return -3
return 1
# -----------------------------------------------------------------------
# Packs/Unpacks a structure to/from a string
def test_pck_bv():
tp = a.typedobj("struct { int a, b; char x[5];};")
o = a.obj(a=16, b=17,x="zzzhi")
ok, packed = tp.store(o)
if not ok:
return -1
print "packed->", repr(packed)
ok, r = tp.retrieve(packed)
if not ok:
return -2
if r.a != o.a and r.b != o.b and r.x != o.x:
return -3
return 1
# -----------------------------------------------------------------------
# Test work with local types
def test_local_types():
(type, fields) = GetLocalTinfo(1)
if not type:
return -1
decl = GetLocalType(1, PRTYPE_MULTI)
if decl != "enum\n"\
+ "{\n"\
+ " FEATURE_OBJECT_CACHING = 0x0,\n"\
+ " FEATURE_ZONE_ELEVATION = 0x1,\n"\
+ " FEATURE_MIME_HANDLING = 0x2,\n"\
+ " FEATURE_MIME_SNIFFING = 0x3,\n"\
+ " FEATURE_WINDOW_RESTRICTIONS = 0x4,\n"\
+ " FEATURE_WEBOC_POPUPMANAGEMENT = 0x5,\n"\
+ " FEATURE_BEHAVIORS = 0x6,\n"\
+ " FEATURE_DISABLE_MK_PROTOCOL = 0x7,\n"\
+ " FEATURE_LOCALMACHINE_LOCKDOWN = 0x8,\n"\
+ " FEATURE_SECURITYBAND = 0x9,\n"\
+ " FEATURE_RESTRICT_ACTIVEXINSTALL = 0xA,\n"\
+ " FEATURE_VALIDATE_NAVIGATE_URL = 0xB,\n"\
+ " FEATURE_RESTRICT_FILEDOWNLOAD = 0xC,\n"\
+ " FEATURE_ADDON_MANAGEMENT = 0xD,\n"\
+ " FEATURE_PROTOCOL_LOCKDOWN = 0xE,\n"\
+ " FEATURE_HTTP_USERNAME_PASSWORD_DISABLE = 0xF,\n"\
+ " FEATURE_SAFE_BINDTOOBJECT = 0x10,\n"\
+ " FEATURE_UNC_SAVEDFILECHECK = 0x11,\n"\
+ " FEATURE_GET_URL_DOM_FILEPATH_UNENCODED = 0x12,\n"\
+ " FEATURE_TABBED_BROWSING = 0x13,\n"\
+ " FEATURE_SSLUX = 0x14,\n"\
+ " FEATURE_DISABLE_NAVIGATION_SOUNDS = 0x15,\n"\
+ " FEATURE_DISABLE_LEGACY_COMPRESSION = 0x16,\n"\
+ " FEATURE_FORCE_ADDR_AND_STATUS = 0x17,\n"\
+ " FEATURE_XMLHTTP = 0x18,\n"\
+ " FEATURE_DISABLE_TELNET_PROTOCOL = 0x19,\n"\
+ " FEATURE_FEEDS = 0x1A,\n"\
+ " FEATURE_BLOCK_INPUT_PROMPTS = 0x1B,\n"\
+ " FEATURE_ENTRY_COUNT = 0x1C,\n"\
+ "} _tagINTERNETFEATURELIST\n":
print "decl = " + decl
return -2
return 1
# -----------------------------------------------------------------------
# various tests
def test1(stage):
# call a method that takes a string buffer and appends a dot to its end
if stage == st_ref2:
buf = a.buffer("test", 100)
vals = [378, 424, 470]
for i in xrange(0, 2+1):
n = a._ref2(buf)
if buf.value[4+i] != '.':
return -st_ref2
if vals[i] != n:
return -stage
# call a method that takes an integer reference
elif stage == st_ref1:
v = 5
i = a.byref(v)
a._ref1(i)
if v + 1 != i.value:
return -stage
# call a method that takes an array of integers
elif stage == st_ref3:
# create an array type
arr = a.array("int")
# create a list
L = [x for x in xrange(1, 10)]
# pack the list
p_list = arr.pack(L)
# appcall to compute the total
c_total = a._ref3(p_list, len(L))
# internally compute the total
total = reduce(operator.add, L)
if total != c_total:
return -stage
# subst()
elif stage == st_subst:
v = a._subst(5, 1)
if v != 4:
return -stage
v = subst(5, 1) # subst() / pascal
if v != -4:
return -stage*2
elif stage == st_make2:
x = a._str2_make(5)
s = a.cstr(x.next.str)
# print "len=%d;<%s>" % (len(s), s)
if s != "This is string 2":
return -stage
n = a._str2_print(x)
if n != 5:
return -st_make2*2
elif stage == st_make1:
x = a._str1_make(6)
if x.val != 1 and x.next.val != 2:
return -st_make1
n = a._str1_print(x)
if n != 6:
return -stage
# 64bit test
elif stage == st_make3:
global gr
try:
x = a._str3_make(6)
gr = x
except Exception as e:
print "Exception: ", str(e)
return -stage
print "x.val32=", x.val32
if (x.val32 != 1) and (x.val64 != (1 << 32)):
return -stage * 2
va = 0
vb = 0
r = x
i = 0
while x != 0:
i += 1
print "1"
va += x.val32
print "2"
vb += x.val64.value
print "3"
x = x.next
print "i=", i, "a=", va, "b=", vb
if va != 21 and vb != 90194313216:
return -stage*3
elif stage == st_asm:
n = asm1(5, 1)
if n != 4:
return -stage
n = asm2(5, 1, 1)
if n != 7:
return -stage*2
elif stage == st_byvalref1:
v1 = a.obj(val=5, next=0)
v2 = a.obj(str="Hello", next=0)
n = a._byvalref1(v1, 1, v2)
if n != 78:
return -stage
# v1 is passed by ref, thus it will be changed
if n + 1 != v1.val:
return -stage * 2
elif stage == st_altsum:
# 1 + 2 - 3 + 5 = 5
n = altsum(1, 2, 3, 5, 0)
if n != 5:
return -stage;
elif stage == st_op64:
# invalid opcode, should return -1
r = a._op_two64(1, 2, 6).value
print "r=", r
if r != -1:
return -stage
r = a._op_two64(6, a.int64(2), 3).value
if r != 12:
return -stage * 2
return 1
elif stage == st_byval3:
o = a.obj(val=6,next=a.obj(val=-1, next=0))
# print "before: o.val=%d o.next.val=%d" % (o.val, o.next.val)
n = a._byval3(o)
if n != 5:
return -stage
# print "after: o.val=%d o.next.val=%d, n=%d" % (o.val, o.next.val, n)
#---------
elif stage == st_ex:
def doit():
try:
# causes a DebugBreak()
a._ex2(1)
except Exception as e:
if not "Software breakpoint" in e.message:
return -stage
try:
a._ex1(1, 2)
return -st_ex * 2
except Exception as e:
if not "referenced memory" in e.message:
return -stage
return 1
old = a.set_appcall_options(0)
r = doit()
a.set_appcall_options(old)
if r <= 0:
return r
#---------
elif stage == st_ref4:
i = a.int64(5)
v = a.byref(i)
if a._ref4(v) != 1:
return -st_ref4
# test (in case recycling failed)
if v.value.value != 6:
return -st_ref4 * 2
# test recycling
if i.value != 6:
return -st_ref4 * 3
# return success
return 1
# -----------------------------------------------------------------------
def test2():
fn = "pc_win32_appcall.pe"
# Try to open an non-existing file
h = a._file_open(fn + ".1")
if h != 0:
return -1
n = getlasterror()
print "gle=", n
if n != c.ERROR_FILE_NOT_FOUND:
return -2
# Should succeed
h = a._file_open(fn)
if h == 0:
return -3
s = a.buffer("", 10, "!")
n = a._file_read(h, s, 2)
# print "read=%d; buf=%s" % (n, repr(s.value))
if s.value[:2] != "MZ":
return -4
n = a._file_close(h)
if n != h-1:
return -5
return 1
# -----------------------------------------------------------------------
# This test changes the appcall options and sees if the appcall
# generates an exception and if we get it properly
# An appcall can throw an exception:
# - ValueError: conversion from/to idc/py failed
# - OSError: an OSError when APPCALL_DEBEV in Appcall_Options. In that case check the exc.args[0] to get the debug event
# - Exception: in all other cases
def test_exec_throw():
old = a.set_appcall_options(0)
print "old_opt=", old, "new=0"
try:
# causes a divide by zero exception (will be reported as an Exception)
print a._op_two64(2,0,4).value
return -1
except Exception as e:
print "runtime error!"
# now appcall exceptions will be reported as OSErr and other exceptions as Exception
print "old_opt=", a.set_appcall_options(a.APPCALL_DEBEV), "new=2"
try:
# causes an error: Wrong number of arguments
print a._op_two64(2).value
return -2
except OSError, e:
return -3
except Exception as e:
print "Got other exception:", e # good
try:
# causes an OS error and "e" will contain the last debug_event
# in our case exception, and the code is int_divide_zero = 0xC0000094
print a._op_two64(2, 0, 4).value
return -4
except OSError, e:
if idaapi.as_uint32(e.args[0].code) != 0xC0000094:
return -5
except Exception as e:
print "Got other exception:", e
return -6
a.set_appcall_options(old)
return 1
# -----------------------------------------------------------------------
# all the tests that take zero parameters
tests0 = (test_gpa, test_pck_idb_raw, test_pck_bv_raw,
test_unpack_raw, test_pck_idb, test_pck_bv, test_local_types,
test_enum_files, test2, test_exec_throw, test_loaddll)
test_log = None # test log file
# -----------------------------------------------------------------------
def test_all():
if test_init() <= 0:
print "test_init() failed!"
return -1
# tests 0
for t in tests0:
print "testing->", t
r = t()
if r <= 0:
return r
# test 1
for i in xrange(1, st_last):
print "test1 #", i
r = test1(i)
if r <= 0:
return r
logprint(datetime.date.today().strftime("Python was here: %Y-%m-%d @ %I:%M:%S%p"))
test_deinit()
return 1
# -----------------------------------------------------------------------
init()
# reference to an integer. use i.value to dereference
i = a.byref(5)
# object representing the str1_t type
o = a.obj(val=5,next=a.obj(val=-2, next=0))
# dictionary representing the str1_t type
# (dictionaries will be converted into IDC objects)
d = {'val':5, 'next': {'val':-2, 'next':0} }
# initialize some pointers
findfirst = a["__imp__FindFirstFileA@8"]
findnext = a["__imp__FindNextFileA@8"]
findclose = a["__imp__FindClose@4"]
getlasterror = a["__imp__GetLastError@0"]
setcurdir = a["__imp__SetCurrentDirectoryA@4"]
beep = a["__imp__Beep@8"]
getwindir = a["__imp__GetWindowsDirectoryA@8"]
getprocaddr = a.proto("__imp__GetProcAddress@8", "int (__stdcall *GetProcAddress)(int hModule, LPCSTR lpProcName);")
getcurdir = a["__imp__GetCurrentDirectoryA@8"]
loadlib = a.proto("__imp__LoadLibraryA@4", "int (__stdcall *LoadLibraryA)(const char *lpLibFileName);")
freelib = a.proto("__imp__FreeLibrary@4", "int (__stdcall *FreeLibrary)(int hLibModule);")
setlasterror = a.typedobj("void __stdcall SetLastError(int dwErrCode);")
getmodulehandlew = a.proto("__imp__GetModuleHandleW@4", "int (__stdcall *GetModuleHandleW)(LPCWSTR lpModuleName);")
virtualalloc = a.typedobj("int __stdcall VirtualAlloc(int lpAddress, SIZE_T dwSize, DWORD flAllocationType, DWORD flProtect);")
# typed objects can become calling if an EA was provided. Thus virtualfree.ea = some_address, then we can call virtualfree(., .., ...)
virtualfree = a.typedobj("BOOL __stdcall VirtualFree(int lpAddress, SIZE_T dwSize, DWORD dwFreeType);")
asm1 = a.proto("_asm1", "int __usercall asm1<eax>(int a<esi>, int b<edi>);")
asm2 = a.proto("_asm2", "int __usercall asm2<eax>(int a, int b, int c<ecx>);")
asm3 = a.proto("_asm3", "int __usercall asm3<edx>(int f<eax>, int a, int b, int c<ecx>);")
asm4 = a.proto("_asm4", "unsigned __int16 __usercall asm4<al:ah>(unsigned __int8 a<bl>, unsigned __int8 b<cl>);")
asm5 = a.proto("_asm5", "unsigned int __usercall asm5<si:bx>(unsigned __int8 a<al>, unsigned __int8 b<cl>, unsigned __int8 c<dl>, int d<ebx>);")
altsum = a.proto("_va_altsum", "int __cdecl va_altsum(int n1, ...);")
getcommandline = a.proto("__imp__GetCommandLineA@0", "LPSTR (__stdcall *GetCommandLineA)();")
# make an appcall with a user defined prototype
subst = a.proto("_subst", "int __pascal subst(int a, int b);")
# some test identifiers
st_ref1 = 1
st_ref2 = 2
st_ref3 = 3
st_subst = 4
st_make1 = 5
st_make2 = 6
st_asm = 7
st_ex = 8
st_byval3 = 9
st_byvalref1 = 10
st_altsum = 11
st_make3 = 12
st_op64 = 13
st_ref4 = 14
st_last = 15
# some area where we can write some bytes _safely_
WRITE_AREA = 0x400020
gr = None
#</pycode(appcalltest)>
# initialize the test
#test_init()
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