-
Notifications
You must be signed in to change notification settings - Fork 6
/
ida_func_ptr.py
377 lines (294 loc) · 14.4 KB
/
ida_func_ptr.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
import os
import idc
import idaapi
import idautils
import PySide.QtGui as QtGui
import PySide.QtCore as QtCore
QtWidgets = QtGui
QtCore.pyqtSignal = QtCore.Signal
QtCore.pyqtSlot = QtCore.Slot
#------------------------------------------------------------------------------
# IDA Plugin
#------------------------------------------------------------------------------
VERSION = "v1.0"
AUTHORS = ['Matt Stevens']
def PLUGIN_ENTRY():
"""
Required plugin entry point for IDAPython Plugins.
"""
return funcref_t()
class funcref_t(idaapi.plugin_t):
flags = idaapi.PLUGIN_PROC | idaapi.PLUGIN_HIDE
help = ""
comment = "A plugin for easy function references"
wanted_name = "funcref"
wanted_hotkey = ""
#--------------------------------------------------------------------------
# Plugin Overloads
#--------------------------------------------------------------------------
def init(self):
# just go when we have hexrays
if not idaapi.init_hexrays_plugin():
return idaapi.PLUGIN_SKIP
# initialize the menu actions our plugin will inject
self._init_action_bulk()
self._init_action_copy()
# initialize plugin hooks
self._init_hooks()
# done
idaapi.msg("%s %s initialized...\n" % (self.wanted_name, VERSION))
return idaapi.PLUGIN_KEEP
def run(self, arg):
idaapi.msg("%s cannot be run as a script.\n" % self.wanted_name)
def term(self):
if not hasattr(self, '_hooks'):
return
# unhook our plugin hooks
self._hooks.unhook()
# unregister our actions & free their resources
self._del_action_bulk()
self._del_action_copy()
# done
idaapi.msg("%s terminated...\n" % self.wanted_name)
#--------------------------------------------------------------------------
# Plugin Hooks
#--------------------------------------------------------------------------
def _init_hooks(self):
self._hooks = Hooks()
self._hooks.hook()
if not idaapi.init_hexrays_plugin():
idaapi.msg("[ERROR] Failed to initialize Hex-Rays SDK")
else:
idaapi.install_hexrays_callback(self._hooks.hxe_callback)
#--------------------------------------------------------------------------
# IDA Actions
#--------------------------------------------------------------------------
ACTION_BULK = "funcref:bulk"
ACTION_COPY = "funcref:copy"
def _init_action_bulk(self):
"""
Register the bulk prefix action with IDA.
"""
icon_data = "".join([
"\x89\x50\x4E\x47\x0D\x0A\x1A\x0A\x00\x00\x00\x0D\x49\x48\x44\x52\x00\x00\x00\x10\x00\x00\x00\x10\x08\x06\x00\x00\x00\x1F\xF3\xFF\x61\x00\x00\x02\xCA\x49\x44\x41\x54\x78\x5E\x65",
"\x53\x6D\x48\x53\x6F\x14\x3F\xBA\xB5\xB7\xA0\x8D\x20\x41\xF2\xBA\x5D\xB6\x0F\x56\xF4\x41\xA2\xC0\x9C\xE9\xB4\x29\x4A\x7D\xB0\x22\x7A\x11\x02\x23\x48\x2A\xD4\x74\x53\x33\x3F\xD4",
"\x3E\x4A\x50\x19\xE4\xB0\xD0\x22\xCD\x44\x45\x4A\x31\x8C\x92\xA2\x3E\x65\x0A\x4D\xCB\x96\x7E\xE8\xD5\x97\xCC\xFE\xFE\x37\xA7\x77\xDB\xBD\xA7\xE7\x3C\xBE\x05\x9E\xED\xB7\xB3\xF3",
"\x7B\x39\xF7\xEE\x19\x17\xA8\xAC\x56\xDB\x54\x82\x60\x41\xB3\x59\xBC\xFF\xAC\xF9\xCA\xB5\xAE\x86\xCA\xF9\x4E\xAF\x1B\x3B\xEA\x5D\x48\x9D\x66\xE2\x49\x27\x9F\xD5\x66\x9B\xA2\x1C",
"\x22\x02\xD0\x40\xE4\x81\x6C\x3B\x76\x37\x56\xE3\x37\x5F\x2F\x62\xE8\x0B\xD3\x66\x19\x7E\x53\xA7\x99\x78\xAE\x1F\x64\x3E\x21\x71\x69\x09\x5F\x20\x98\x2D\x58\x70\x24\x07\x07\x7B",
"\x6F\xB0\x79\x82\x61\x81\x21\xCC\xDE\x21\x54\x16\x02\xD4\x69\x26\x9E\x74\xEE\xCB\xCF\x4D\xC7\x44\xB3\x88\x7C\x81\xC5\x22\xFE\x6C\xB9\xE9\x46\x67\x46\x1A\x8A\x16\x2B\x0A\x5B\x05",
"\x74\x66\x65\xE1\x98\x6F\x00\x31\x32\x87\x9F\x59\x77\x66\x66\x61\x42\xBC\xC0\xF5\x6C\x47\x1A\x36\xD7\xB9\x51\x14\xC5\x1E\xBE\xA0\xC3\x5B\xD9\x98\x99\xE1\xC0\xCE\xBE\x57\x48\xD7",
"\x9A\x63\x68\xEA\x7C\x8A\xF6\x14\x3B\x9F\xF6\xA6\xA4\x60\xEB\xE3\x3E\x9C\x5F\xD6\x5A\x7A\xFA\x71\xBF\xC3\x81\x3D\x4D\x35\x0D\x7C\xC1\xF3\x87\x57\x43\xF9\x87\x8F\x21\x95\x5E\xAB",
"\x41\x83\x4E\x83\x54\xDB\x92\x76\x20\xCA\xBF\xD0\x99\x9D\xBB\x4E\xDB\xBD\xC7\x8E\x2F\x5A\x3D\x74\x3D\x50\x03\x80\x7E\x7A\x7A\x06\x46\x47\xFD\xA0\x33\x6C\x84\x18\x46\x0C\xBD\x1F",
"\x86\x2D\x71\x71\x00\x52\x10\x16\x17\xE6\xC1\xE7\x1B\x61\x9A\x81\x69\x31\x30\xFC\x61\x14\xB4\x3A\x3D\x20\x82\x1E\x58\xA9\x15\x05\x41\x14\x05\xB8\x58\xEE\x82\x7D\xE9\x99\x20\xCB",
"\x32\x94\x95\x95\xC3\xA5\xD2\x53\x00\x51\x09\xAA\x4B\x0B\xA1\xB8\xA4\x0C\x52\x53\x33\x40\xA5\x52\x81\xDB\x5D\x01\xA2\x45\x00\x45\x51\x80\x2A\x36\x12\x8D\x42\x49\x51\x01\x44\xE5",
"\x18\x90\x22\x0A\x98\x8C\x46\xF0\x54\x14\x42\x6D\x7D\x3B\xE4\x1C\x75\x41\xAD\xB7\x1D\x3C\x55\x85\x60\x32\x19\x41\x8A\x2A\xDC\x57\x5C\x74\x12\x28\x47\xA5\x8E\x44\xE4\xF0\x76\x5B",
"\x82\xA6\xCD\x5B\x0D\xB2\x12\xE6\xE4\x06\xB5\x1A\x66\xA7\x26\x41\x92\xC2\xA0\xD5\x6A\x60\x67\x92\x19\xAE\x7B\xCE\x70\x4D\x15\xAB\x01\xAD\xC1\x08\x3F\x46\x64\x6E\x8E\x9D\xF9\x13",
"\xE8\x1A\xFF\xE4\x63\x8A\x0E\xE6\x02\x41\xF8\x3F\x18\x82\x40\x28\x04\xFD\xDD\x75\xF0\xB6\xFF\x2E\x75\x9A\x89\x27\x9D\xFB\xC8\x4F\x39\xBE\xE0\xB4\xAB\xCE\x35\xFE\x71\x00\x16\x17",
"\x25\x76\x50\x26\x76\x6B\x61\x86\x08\xE4\x1D\xAF\x81\xBC\x13\x97\xA9\xD3\x4C\x3C\xE9\xDC\x47\x7E\xCA\xF1\x05\x0C\x5F\x7D\xFE\xEF\x35\x03\xAF\x9F\x00\xB0\x73\x30\x9A\xE2\x81\x0E",
"\xF6\xC1\xED\x52\xB8\x77\xAB\x98\x3A\xCD\xC4\x73\x9D\x7C\x6F\xDE\xF9\xCF\x53\x0E\xFE\xA9\xCD\xAE\xB3\x87\xCE\x75\x35\x54\xE1\xD0\xCB\x47\x38\x39\x36\x88\xFF\x4D\xF8\x57\x41\x33",
"\xF1\xA4\x93\x0F\x00\x36\xAD\x3E\x4C\x6B\xC5\xC9\x5D\x77\x6A\x2F\xB4\x31\xA3\xC4\x40\x4F\x21\x0F\xD1\x4C\x3C\xE9\x2B\xE1\xF5\x0B\xD6\x90\xC8\x90\x4C\xE6\x35\xD0\xCC\x79\x5E\xFF",
"\x2E\xF8\x0B\x2F\x3D\xE5\xC3\x97\x06\xCF\xCF\x00\x00\x00\x00\x49\x45\x4E\x44\xAE\x42\x60\x82"])
# load the icon for this action
self._bulk_icon_id = idaapi.load_custom_icon(data=icon_data, format="png")
# describe the action
action_desc = idaapi.action_desc_t(
self.ACTION_BULK, # The action name.
"Copy function pointers to selected function(s)", # The action text.
IDACtxEntry(bulk_function), # The action handler.
None, # Optional: action shortcut
"Copies a function pointer to the selected function(s)", # Optional: tooltip
self._bulk_icon_id # Optional: the action icon
)
# register the action with IDA
assert idaapi.register_action(action_desc), "Action registration failed"
def _init_action_copy(self):
# load the icon for this action
self._copy_icon_id = 199
# describe the action
action_desc = idaapi.action_desc_t(
self.ACTION_COPY, # The action name.
"Copy function reference", # The action text.
IDACtxEntry(copy_function_cursor), # The action handler.
None, # Optional: action shortcut
"Copy reference of this function", # Optional: tooltip
self._copy_icon_id # Optional: the action icon
)
# register the action with IDA
assert idaapi.register_action(action_desc), "Action registration failed"
def _del_action_bulk(self):
idaapi.unregister_action(self.ACTION_BULK)
idaapi.free_custom_icon(self._bulk_icon_id)
self._bulk_icon_id = idaapi.BADADDR
def _del_action_copy(self):
idaapi.unregister_action(self.ACTION_COPY)
#idaapi.free_custom_icon(self._copy_icon_id)
self._copy_icon_id = idaapi.BADADDR
#------------------------------------------------------------------------------
# Plugin Hooks
#------------------------------------------------------------------------------
class Hooks(idaapi.UI_Hooks):
def finish_populating_tform_popup(self, form, popup):
# disassembly window
if idaapi.get_tform_type(form) == idaapi.BWN_DISASMS:
if get_cursor_func_ref() == idaapi.BADADDR:
return
idaapi.attach_action_to_popup(
form,
popup,
funcref_t.ACTION_COPY
)
# functions window
elif idaapi.get_tform_type(form) == idaapi.BWN_FUNCS:
idaapi.attach_action_to_popup(form, popup, funcref_t.ACTION_BULK, "Copy All", idaapi.SETMENU_INS)
return 0
def hxe_callback(self, event, *args):
if event == idaapi.hxe_populating_popup:
form, popup, vu = args
if get_cursor_func_ref() == idaapi.BADADDR:
return 0
idaapi.attach_action_to_popup(
form,
popup,
funcref_t.ACTION_COPY,
"Rename global item",
idaapi.SETMENU_APP
)
return 0
def copy_to_clip(data):
QtGui.QApplication.clipboard().setText(data)
def copy_function_cursor():
# get the function reference under the user cursor (if there is one)
target = get_cursor_func_ref()
if target == idaapi.BADADDR:
return
# execute the recursive prefix
functionPtrDef = copy_function(target)
copy_to_clip(functionPtrDef)
idaapi.msg(functionPtrDef + "\n")
def copy_function(addr):
func_addr = idc.LocByName(idaapi.get_func_name(addr))
if func_addr == idaapi.BADADDR:
idaapi.msg("0x%08X does not belong to a defined function\n" % addr)
return
callTypes = ["__cdecl", "__fastcall", "__stdcall", "__thiscall", "__usercall"]
funcDef = str(idaapi.decompile(func_addr)).split('\n', 1)[0]
hasCallType = any(call_type in funcDef for call_type in callTypes)
parenthesesStart = funcDef.find('(')
parenthesesEnd = funcDef.rfind(')')
funcNameStart = funcDef[0 : parenthesesStart].rfind(' ')
funcNameEnd = parenthesesStart
returnTypeStart = 0
returnTypeEnd = funcNameStart
callType = ""
if hasCallType:
callTypeStart = funcDef[0 : funcNameStart].rfind(' ')
callType = funcDef[callTypeStart + 1 : funcNameStart]
returnTypeEnd = callTypeStart
if callType == "__cdecl":
callType = ""
returnType = funcDef[returnTypeStart : returnTypeEnd]
funcName = funcDef[funcNameStart + 1 : parenthesesStart]
args = funcDef[parenthesesStart + 1 : parenthesesEnd]
finalString = "{0} ({1}* {2})({3}) = ({0}({1}*)({3}))({4});".format(
returnType, callType, funcName, args, "0x%08X" % func_addr
)
return finalString
def bulk_function():
functionPtrs = ""
for func_name in get_selected_funcs():
functionPtrDef = copy_function(idc.LocByName(func_name))
functionPtrs = functionPtrs + functionPtrDef + "\n"
copy_to_clip(functionPtrs)
idaapi.msg(functionPtrs)
def get_all_funcs():
return set(idaapi.get_func_name(ea) for ea in idautils.Functions())
def get_cursor_func_ref():
current_tform = idaapi.get_current_tform()
tform_type = idaapi.get_tform_type(current_tform)
# get the hexrays vdui (if available)
vu = idaapi.get_tform_vdui(current_tform)
if vu:
cursor_addr = vu.item.get_ea()
elif tform_type == idaapi.BWN_DISASM:
cursor_addr = idaapi.get_screen_ea()
op_addr = idc.GetOperandValue(cursor_addr, idaapi.get_opnum())
op_func = idaapi.get_func(op_addr)
if op_func and op_func.startEA == op_addr:
return op_addr
else:
return idaapi.BADADDR
cursor_func = idaapi.get_func(cursor_addr)
if cursor_func and cursor_func.startEA == cursor_addr:
return cursor_addr
return idaapi.BADADDR
def get_selected_funcs():
tform = idaapi.find_tform("Functions window")
if not tform:
idc.Warning("Unable to find 'Functions window'")
return
widget = idaapi.PluginForm.FormToPySideWidget(tform)
table = widget.findChild(QtWidgets.QTableView)
selected_funcs = [str(s.data()) for s in table.selectionModel().selectedRows()]
return match_funcs(selected_funcs)
def match_funcs(qt_funcs):
res = set()
ida_funcs = get_all_funcs()
for f in qt_funcs:
for f2 in ida_funcs:
if len(f) == len(f2):
i = 0
while i < len(f) and (f[i] == f2[i] or f[i] == '_'):
i += 1
if i == len(f):
res.add(f2)
break
return list(res)
def graph_down(ea, path=set()):
"""
Recursively collect all function calls.
Copied with minor modifications from
http://hooked-on-mnemonics.blogspot.com/2012/07/renaming-subroutine-blocks-and.html
"""
path.add(ea)
#
# iterate through all the instructions in the target function (ea) and
# inspect all the call instructions
#
for x in [x for x in idautils.FuncItems(ea) if idaapi.is_call_insn(x)]:
# TODO
for r in idautils.XrefsFrom(x, idaapi.XREF_FAR):
#print "0x%08X" % h, "--calls-->", "0x%08X" % r.to
if not r.iscode:
continue
# get the function pointed at by this call
func = idaapi.get_func(r.to)
if not func:
continue
# ignore calls to imports / library calls / thunks
if (func.flags & (idaapi.FUNC_THUNK | idaapi.FUNC_LIB)) != 0:
continue
#
# if we have not traversed to the destination function that this
# call references, recurse down to it to continue our traversal
#
if r.to not in path:
graph_down(r.to, path)
return path
class IDACtxEntry(idaapi.action_handler_t):
"""
A basic Context Menu class to utilize IDA's action handlers.
"""
def __init__(self, action_function):
idaapi.action_handler_t.__init__(self)
self.action_function = action_function
def activate(self, ctx):
"""
Execute the embedded action_function when this context menu is invoked.
"""
self.action_function()
return 1
def update(self, ctx):
"""
Ensure the context menu is always available in IDA.
"""
return idaapi.AST_ENABLE_ALWAYS