mirror of
https://github.com/cemu-project/idapython.git
synced 2024-11-24 18:16:55 +01:00
7eb6d04c6e
- Fixed compilation error on Linux - Minor bugfix in hexrays.i - Added two more samples: vds3.py and vds_xrefs.py
320 lines
9.6 KiB
Python
320 lines
9.6 KiB
Python
""" Xref plugin for Hexrays Decompiler
|
|
|
|
Author: EiNSTeiN_ <einstein@g3nius.org>
|
|
|
|
Show decompiler-style Xref when the X key is pressed in the Decompiler window.
|
|
|
|
- It supports any global name: functions, strings, integers, etc.
|
|
- It supports structure member.
|
|
|
|
"""
|
|
|
|
import idautils
|
|
import idaapi
|
|
import idc
|
|
|
|
import traceback
|
|
|
|
try:
|
|
from PyQt4 import QtCore, QtGui
|
|
print 'Using PyQt'
|
|
except:
|
|
print 'PyQt not available'
|
|
|
|
try:
|
|
from PySide import QtGui, QtCore
|
|
print 'Using PySide'
|
|
except:
|
|
print 'PySide not available'
|
|
|
|
XREF_EA = 0
|
|
XREF_STRUC_MEMBER = 1
|
|
|
|
class XrefsForm(idaapi.PluginForm):
|
|
|
|
def __init__(self, target):
|
|
|
|
idaapi.PluginForm.__init__(self)
|
|
|
|
self.target = target
|
|
|
|
if type(self.target) == idaapi.cfunc_t:
|
|
|
|
self.__type = XREF_EA
|
|
self.__ea = self.target.entry_ea
|
|
self.__name = 'Xrefs of %x' % (self.__ea, )
|
|
|
|
elif type(self.target) == idaapi.cexpr_t and self.target.opname == 'obj':
|
|
|
|
self.__type = XREF_EA
|
|
self.__ea = self.target.obj_ea
|
|
self.__name = 'Xrefs of %x' % (self.__ea, )
|
|
|
|
elif type(self.target) == idaapi.cexpr_t and self.target.opname in ('memptr', 'memref'):
|
|
|
|
self.__type = XREF_STRUC_MEMBER
|
|
name = self.get_struc_name()
|
|
self.__name = 'Xrefs of %s' % (name, )
|
|
|
|
else:
|
|
raise ValueError('cannot show xrefs for this kind of target')
|
|
|
|
return
|
|
|
|
def get_struc_name(self):
|
|
|
|
x = self.target.operands['x']
|
|
m = self.target.operands['m']
|
|
|
|
xtype = typestring(x.type.u_str())
|
|
xtype.remove_ptr_or_array()
|
|
typename = str(xtype)
|
|
|
|
sid = idc.GetStrucIdByName(typename)
|
|
member = idc.GetMemberName(sid, m)
|
|
|
|
return '%s::%s' % (typename, member)
|
|
|
|
def OnCreate(self, form):
|
|
|
|
# Get parent widget
|
|
try:
|
|
self.parent = self.FormToPySideWidget(form)
|
|
except:
|
|
self.parent = self.FormToPyQtWidget(form)
|
|
|
|
self.populate_form()
|
|
|
|
return
|
|
|
|
def Show(self):
|
|
idaapi.PluginForm.Show(self, self.__name)
|
|
return
|
|
|
|
def populate_form(self):
|
|
# Create layout
|
|
layout = QtGui.QVBoxLayout()
|
|
|
|
layout.addWidget(QtGui.QLabel(self.__name))
|
|
self.table = QtGui.QTableWidget()
|
|
layout.addWidget(self.table)
|
|
|
|
self.table.setColumnCount(3)
|
|
self.table.setHorizontalHeaderItem(0, QtGui.QTableWidgetItem("Address"))
|
|
self.table.setHorizontalHeaderItem(1, QtGui.QTableWidgetItem("Function"))
|
|
self.table.setHorizontalHeaderItem(2, QtGui.QTableWidgetItem("Line"))
|
|
|
|
self.table.setColumnWidth(0, 80)
|
|
self.table.setColumnWidth(1, 150)
|
|
self.table.setColumnWidth(2, 450)
|
|
|
|
self.table.cellDoubleClicked.connect(self.double_clicked)
|
|
|
|
#~ self.table.setSelectionMode(QtGui.QAbstractItemView.NoSelection)
|
|
self.table.setSelectionBehavior(QtGui.QAbstractItemView.SelectRows )
|
|
self.parent.setLayout(layout)
|
|
|
|
self.populate_table()
|
|
|
|
return
|
|
|
|
def double_clicked(self, row, column):
|
|
|
|
ea = self.functions[row]
|
|
idaapi.open_pseudocode(ea, True)
|
|
|
|
return
|
|
|
|
def get_decompiled_line(self, cfunc, ea):
|
|
|
|
print repr(ea)
|
|
if ea not in cfunc.eamap:
|
|
print 'strange, %x is not in %x eamap' % (ea, cfunc.entry_ea)
|
|
return
|
|
|
|
insnvec = cfunc.eamap[ea]
|
|
|
|
lines = []
|
|
for stmt in insnvec:
|
|
|
|
qs = idaapi.qstring()
|
|
qp = idaapi.qstring_printer_t(cfunc.__deref__(), qs, False)
|
|
|
|
stmt._print(0, qp)
|
|
s = str(qs).split('\n')[0]
|
|
|
|
#~ s = idaapi.tag_remove(s)
|
|
lines.append(s)
|
|
|
|
return '\n'.join(lines)
|
|
|
|
def get_items_for_ea(self, ea):
|
|
|
|
frm = [x.frm for x in idautils.XrefsTo(self.__ea)]
|
|
|
|
items = []
|
|
for ea in frm:
|
|
try:
|
|
cfunc = idaapi.decompile(ea)
|
|
cfunc.refcnt += 1
|
|
|
|
self.functions.append(cfunc.entry_ea)
|
|
self.items.append((ea, idc.GetFunctionName(cfunc.entry_ea), self.get_decompiled_line(cfunc, ea)))
|
|
|
|
except Exception as e:
|
|
print 'could not decompile: %s' % (str(e), )
|
|
raise
|
|
|
|
return
|
|
|
|
def get_items_for_type(self):
|
|
|
|
x = self.target.operands['x']
|
|
m = self.target.operands['m']
|
|
|
|
xtype = typestring(x.type.u_str())
|
|
xtype.remove_ptr_or_array()
|
|
typename = str(xtype)
|
|
|
|
addresses = []
|
|
for ea in idautils.Functions():
|
|
|
|
try:
|
|
cfunc = idaapi.decompile(ea)
|
|
cfunc.refcnt += 1
|
|
except:
|
|
print 'Decompilation of %x failed' % (ea, )
|
|
continue
|
|
|
|
str(cfunc)
|
|
|
|
for citem in cfunc.treeitems:
|
|
citem = citem.to_specific_type
|
|
if not (type(citem) == idaapi.cexpr_t and citem.opname in ('memptr', 'memref')):
|
|
continue
|
|
|
|
_x = citem.operands['x']
|
|
_m = citem.operands['m']
|
|
_xtype = typestring(_x.type.u_str())
|
|
_xtype.remove_ptr_or_array()
|
|
_typename = str(_xtype)
|
|
|
|
#~ print 'in', hex(cfunc.entry_ea), _typename, _m
|
|
|
|
if not (_typename == typename and _m == m):
|
|
continue
|
|
|
|
parent = citem
|
|
while parent:
|
|
if type(parent.to_specific_type) == idaapi.cinsn_t:
|
|
break
|
|
parent = cfunc.body.find_parent_of(parent)
|
|
|
|
if not parent:
|
|
print 'cannot find parent statement (?!)'
|
|
continue
|
|
|
|
if parent.ea in addresses:
|
|
continue
|
|
|
|
if parent.ea == idaapi.BADADDR:
|
|
print 'parent.ea is BADADDR'
|
|
continue
|
|
|
|
addresses.append(parent.ea)
|
|
|
|
self.functions.append(cfunc.entry_ea)
|
|
self.items.append((parent.ea, idc.GetFunctionName(cfunc.entry_ea), self.get_decompiled_line(cfunc, int(parent.ea))))
|
|
|
|
|
|
return []
|
|
|
|
def populate_table(self):
|
|
|
|
self.functions = []
|
|
self.items = []
|
|
|
|
if self.__type == XREF_EA:
|
|
self.get_items_for_ea(self.__ea)
|
|
else:
|
|
self.get_items_for_type()
|
|
|
|
self.table.setRowCount(len(self.items))
|
|
|
|
i = 0
|
|
for item in self.items:
|
|
address, func, line = item
|
|
item = QtGui.QTableWidgetItem('0x%x' % (address, ))
|
|
item.setFlags(item.flags() ^ QtCore.Qt.ItemIsEditable)
|
|
self.table.setItem(i, 0, item)
|
|
item = QtGui.QTableWidgetItem(func)
|
|
item.setFlags(item.flags() ^ QtCore.Qt.ItemIsEditable)
|
|
self.table.setItem(i, 1, item)
|
|
item = QtGui.QTableWidgetItem(line)
|
|
item.setFlags(item.flags() ^ QtCore.Qt.ItemIsEditable)
|
|
self.table.setItem(i, 2, item)
|
|
|
|
i += 1
|
|
|
|
self.table.resizeRowsToContents()
|
|
|
|
return
|
|
|
|
def OnClose(self, form):
|
|
pass
|
|
|
|
class hexrays_callback_info(object):
|
|
|
|
def __init__(self):
|
|
self.vu = None
|
|
return
|
|
|
|
def show_xrefs(self, vu):
|
|
|
|
vu.get_current_item(idaapi.USE_KEYBOARD)
|
|
item = vu.item
|
|
|
|
sel = None
|
|
if item.citype == idaapi.VDI_EXPR and item.it.to_specific_type.opname in ('obj', 'memref', 'memptr'):
|
|
# if an expression is selected. verify that it's either a cot_obj, cot_memref or cot_memptr
|
|
sel = item.it.to_specific_type
|
|
|
|
elif item.citype == idaapi.VDI_FUNC:
|
|
# if the function itself is selected, show xrefs to it.
|
|
sel = item.f
|
|
else:
|
|
return False
|
|
|
|
form = XrefsForm(sel)
|
|
form.Show()
|
|
return True
|
|
|
|
def menu_callback(self):
|
|
self.show_xrefs(self.vu)
|
|
return 0
|
|
|
|
def event_callback(self, event, *args):
|
|
|
|
try:
|
|
if event == idaapi.hxe_keyboard:
|
|
vu, keycode, shift = args
|
|
|
|
if idaapi.lookup_key_code(keycode, shift, True) == idaapi.get_key_code("X") and shift == 0:
|
|
if self.show_xrefs(vu):
|
|
return 1
|
|
|
|
elif event == idaapi.hxe_right_click:
|
|
self.vu = args[0]
|
|
idaapi.add_custom_viewer_popup_item(self.vu.ct, "Xrefs", "X", self.menu_callback)
|
|
|
|
except:
|
|
traceback.print_exc()
|
|
|
|
return 0
|
|
|
|
if idaapi.init_hexrays_plugin():
|
|
i = hexrays_callback_info()
|
|
idaapi.install_hexrays_callback(i.event_callback)
|
|
else:
|
|
print 'invert-if: hexrays is not available.'
|