problem in accessing callback_args in callback function.

[saurabhsha]

from x64dbgpy.__breakpoints import *
bp = Breakpoint()
bp.add(address,func_callback,bp_type=NORMAL,hw_type=EXECUTE,callback_args=(param1,param2,param3))

def func_callback(*callback_args):
print callback_args

getting empty tuple.callback_args = ()

[saurabhsha]

def __breakpoint_function(self, **kwargs):
print 'kwargs:',kwargs
address = kwargs['addr']
if address in self.__breakpoints:
if not (kwargs['enabled'] and kwargs['active']):
return
arg_keys = self.__breakpoints[address]['callback_args']
self.__breakpoints[address]['callback'](
**{key: value for key, value in kwargs.iteritems() if key in arg_keys}
)

kwargs does not have callback_args key -

kwargs: {'slot': 0, 'addr': 5355082858L, 'enabled': True, 'singleshoot': False, 'active': True, 'mod': 'jugsofbeer.exe', 'type': 1, 'name': ''}

__breakpoint dict has callback_args entry for added breakpoint -
{5355082858L: {'callback': <bound method ApiDump.breakPointcallbackRet of <main.ApiDump instance at 0x0000000009D98EC8>>, 'type': 1, 'callback_args': ('GetDlgItemTextW', {}, {2: [u'lpString', u'LPSTR', 0]})}

Breakpoint added at return address 5355082858.
INT3 breakpoint at jugsofbeer.000000013F30146A (000000013F30146A)!
defaultdict(<type 'dict'>, {5355082858L: {'callback': <bound method ApiDump.breakPointcallbackRet of <main.ApiDump instance at 0x0000000009D98EC8>>, 'type': 1, 'callback_args': ('GetDlgItemTextW', {}, {2: [u'lpString', u'LPSTR', 0]})}, 2001397788L: {'callback': <bound method ApiDump.breakPointcallback of <main.ApiDump instance at 0x0000000009D98EC8>>, 'type': 1, 'callback_args': ()}, 8791760783408L: {'callback': <bound method ApiDump.breakPointcallback of <main.ApiDump instance at 0x0000000009D98EC8>>, 'type': 1, 'callback_args': ()}})

[realgam3]

Please Look At the following example of implementation:
https://raw.githubusercontent.com/realgam3/ReversingAutomation/master/X64dbgPy/Ollydbg2-Playtime%20-%20Digital%20Whisper%20Example/AntiDebugging.py

Breakpoint should be used only as a global array (It's a Singleton).

Little information about Breapoint object:

filter(lambda x: '__' not in x, dir(Breakpoint)):
['BP_HARDWARE', 'BP_MEMORY', 'BP_NONE', 'BP_NORMAL', 'HW_ACCESS', 'HW_EXECUTE', 'HW_WRITE', 'add', 'disable', 'enable', 'list', 'remove']

help(Breakpoint.add):
Breakpoint.add(self, address, callback, bp_type=Breakpoint.BP_NORMAL, hw_type=Breakpoint.HW_EXECUTE, callback_args=())

[saurabhsha]

can you help me with example where callback_args = (arg1,arg2,arg3) is passed?
i am not able to access the passed callback_args in callback function set while adding breakpoint.
All i am getting is empty tuple.

[realgam3]

def is_debugger_present_callback(addr, name):
print addr, name

Breakpoint.add(
pluginsdk.RemoteGetProcAddress('kernel32', 'IsDebuggerPresent'),
is_debugger_present_callback,
callback_args=['addr', 'name']
)

• Its experimental (It's purpose is to get only the arguments that you need and not all the arguments):
  pyCallback("breakpoint", Py_BuildValue(
  "{s:i, s:N, s:N, s:N, s:N, s:s, s:s, s:i}",
  "type", breakpoint->type,
  "addr", PyInt_FromSize_t(breakpoint->addr),
  "enabled", PyBool_FromLong(breakpoint->enabled),
  "singleshoot", PyBool_FromLong(breakpoint->singleshoot),
  "active", PyBool_FromLong(breakpoint->active),
  "mod", breakpoint->mod,
  "name", breakpoint->name,
  "slot", breakpoint->slot
  ));

instead of creating a callback that get **kwargs or all those keys (type, addr, enabled, singleshoot, active, mod, name, slot), you can choose what args you will get.