//--------------------------------------------------------------------------
const char *PyBBMatcher::init()
{
PYW_GIL_GET;
const char *err = call_init_file();
if (err != NULL)
return err;
py_matcher_module = PyW_TryImportModule(STR_PY_MATCH_MODULE);
if (py_matcher_module == NULL)
return "BBMatch module is not present";
//NOTE: To create an object instance, get a reference to the class
// then call PyObject_CallFunctionObjArgs(py_cls, NULL)
py_instref = PyW_TryGetAttrString(py_matcher_module, "bbMatcher");
if (py_instref == NULL)
return "BBMatcher instance not present";
py_meth_find_similar = PyW_TryGetAttrString(py_instref, "FindSimilar");
py_meth_save_state = PyW_TryGetAttrString(py_instref, "SaveState");
py_meth_load_state = PyW_TryGetAttrString(py_instref, "LoadState");
py_meth_analyze = PyW_TryGetAttrString(py_instref, "Analyze");
if ( py_meth_find_similar == NULL
|| py_meth_save_state == NULL
|| py_meth_load_state == NULL
|| py_meth_analyze == NULL)
{
return "Failed to find one or more needed methods";
}
return NULL;
}
//-------------------------------------------------------------------------
// Checks if the given py_var is a special PyIdc_cvt_helper object.
// It does that by examining the magic attribute and returns its numeric value.
// It returns -1 if the object is not a recognized helper object.
// Any Python object can be treated as an cvt object if this attribute is created.
static int get_pyidc_cvt_type(PyObject *py_var)
{
PYW_GIL_CHECK_LOCKED_SCOPE();
// Check if this our special by reference object
ref_t attr(PyW_TryGetAttrString(py_var, S_PY_IDCCVT_ID_ATTR));
if ( attr == NULL || (!PyInt_Check(attr.o) && !PyLong_Check(attr.o)) )
return -1;
return (int)PyInt_AsLong(attr.o);
}
int register_dt(PyObject *py_obj)
{
PYW_GIL_CHECK_LOCKED_SCOPE();
// Already registered?
if ( dtid >= 0 )
return dtid;
memset(&dt, 0, sizeof(dt));
dt.cbsize = sizeof(dt);
dt.ud = this;
do
{
ref_t py_attr;
// name
if ( !PyW_GetStringAttr(py_obj, S_NAME, &dt_name) )
break;
dt.name = dt_name.c_str();
// menu_name (optional)
if ( PyW_GetStringAttr(py_obj, S_MENU_NAME, &dt_menu_name) )
dt.menu_name = dt_menu_name.c_str();
// asm_keyword (optional)
if ( PyW_GetStringAttr(py_obj, S_ASM_KEYWORD, &dt_asm_keyword) )
dt.asm_keyword = dt_asm_keyword.c_str();
// hotkey (optional)
if ( PyW_GetStringAttr(py_obj, S_HOTKEY, &dt_hotkey) )
dt.hotkey = dt_hotkey.c_str();
// value_size
py_attr = PyW_TryGetAttrString(py_obj, S_VALUE_SIZE);
if ( py_attr != NULL && PyInt_Check(py_attr.o) )
dt.value_size = PyInt_AsLong(py_attr.o);
py_attr = ref_t();
// props
py_attr = PyW_TryGetAttrString(py_obj, S_PROPS);
if ( py_attr != NULL && PyInt_Check(py_attr.o) )
dt.props = PyInt_AsLong(py_attr.o);
py_attr = ref_t();
// may_create_at
py_attr = PyW_TryGetAttrString(py_obj, S_MAY_CREATE_AT);
if ( py_attr != NULL && PyCallable_Check(py_attr.o) )
dt.may_create_at = s_may_create_at;
py_attr = ref_t();
// calc_item_size
py_attr = PyW_TryGetAttrString(py_obj, S_CALC_ITEM_SIZE);
if ( py_attr != NULL && PyCallable_Check(py_attr.o) )
dt.calc_item_size = s_calc_item_size;
py_attr = ref_t();
// Now try to register
dtid = register_custom_data_type(&dt);
if ( dtid < 0 )
break;
// Hold reference to the PyObject
Py_INCREF(py_obj);
py_self = py_obj;
py_attr = newref_t(PyInt_FromLong(dtid));
PyObject_SetAttrString(py_obj, S_ID, py_attr.o);
} while ( false );
return dtid;
}
int register_df(int dtid, PyObject *py_obj)
{
// Already registered?
if ( dfid >= 0 )
return dfid;
memset(&df, 0, sizeof(df));
df.cbsize = sizeof(df);
df.ud = this;
PYW_GIL_CHECK_LOCKED_SCOPE();
do
{
ref_t py_attr;
// name
if ( !PyW_GetStringAttr(py_obj, S_NAME, &df_name) )
break;
df.name = df_name.c_str();
// menu_name (optional)
if ( PyW_GetStringAttr(py_obj, S_MENU_NAME, &df_menu_name) )
df.menu_name = df_menu_name.c_str();
// props
py_attr = PyW_TryGetAttrString(py_obj, S_PROPS);
if ( py_attr != NULL && PyInt_Check(py_attr.o) )
df.props = PyInt_AsLong(py_attr.o);
// hotkey
if ( PyW_GetStringAttr(py_obj, S_HOTKEY, &df_hotkey) )
df.hotkey = df_hotkey.c_str();
// value_size
py_attr = PyW_TryGetAttrString(py_obj, S_VALUE_SIZE);
if ( py_attr != NULL && PyInt_Check(py_attr.o) )
df.value_size = PyInt_AsLong(py_attr.o);
// text_width
py_attr = PyW_TryGetAttrString(py_obj, S_TEXT_WIDTH);
if ( py_attr != NULL && PyInt_Check(py_attr.o) )
df.text_width = PyInt_AsLong(py_attr.o);
// print cb
py_attr = PyW_TryGetAttrString(py_obj, S_PRINTF);
if ( py_attr != NULL && PyCallable_Check(py_attr.o) )
df.print = s_print;
// scan cb
py_attr = PyW_TryGetAttrString(py_obj, S_SCAN);
if ( py_attr != NULL && PyCallable_Check(py_attr.o) )
df.scan = s_scan;
// analyze cb
py_attr = PyW_TryGetAttrString(py_obj, S_ANALYZE);
if ( py_attr != NULL && PyCallable_Check(py_attr.o) )
df.analyze = s_analyze;
// Now try to register
dfid = register_custom_data_format(dtid, &df);
if ( dfid < 0 )
break;
// Hold reference to the PyObject
Py_INCREF(py_obj);
py_self = py_obj;
// Update the format ID
py_attr = newref_t(PyInt_FromLong(dfid));
PyObject_SetAttrString(py_obj, S_ID, py_attr.o);
} while ( false );
return dfid;
}
static void py_get_int(PyObject *self, T *prm, const char *name)
{
ref_t attr(PyW_TryGetAttrString(self, name));
if ( attr != NULL && attr.o != Py_None )
*prm = T(PyInt_AsLong(attr.o));
}
//-------------------------------------------------------------------------
// Converts an IDC variable to a Python variable
// If py_var points to an existing object then the object will be updated
// If py_var points to an existing immutable object then ZERO is returned
// Returns one of CIP_xxxx. Check pywraps.hpp
int idcvar_to_pyvar(
const idc_value_t &idc_var,
ref_t *py_var)
{
PYW_GIL_CHECK_LOCKED_SCOPE();
switch ( idc_var.vtype )
{
case VT_PVOID:
if ( *py_var == NULL )
{
newref_t nr(PyCObject_FromVoidPtr(idc_var.pvoid, NULL));
*py_var = nr;
}
else
{
return CIP_IMMUTABLE;
}
break;
case VT_INT64:
{
// Recycle?
if ( *py_var != NULL )
{
// Recycling an int64 object?
int t = get_pyidc_cvt_type(py_var->o);
if ( t != PY_ICID_INT64 )
return CIP_IMMUTABLE; // Cannot recycle immutable object
// Update the attribute
PyObject_SetAttrString(py_var->o, S_PY_IDCCVT_VALUE_ATTR, PyLong_FromLongLong(idc_var.i64));
return CIP_OK;
}
ref_t py_cls(get_idaapi_attr_by_id(PY_CLSID_CVT_INT64));
if ( py_cls == NULL )
return CIP_FAILED;
*py_var = newref_t(PyObject_CallFunctionObjArgs(py_cls.o, PyLong_FromLongLong(idc_var.i64), NULL));
if ( PyW_GetError() || *py_var == NULL )
return CIP_FAILED;
break;
}
#if !defined(NO_OBSOLETE_FUNCS) || defined(__EXPR_SRC)
case VT_STR:
*py_var = newref_t(PyString_FromString(idc_var.str));
break;
#endif
case VT_STR2:
if ( *py_var == NULL )
{
const qstring &s = idc_var.qstr();
*py_var = newref_t(PyString_FromStringAndSize(s.begin(), s.length()));
break;
}
else
return CIP_IMMUTABLE; // Cannot recycle immutable object
case VT_LONG:
// Cannot recycle immutable objects
if ( *py_var != NULL )
return CIP_IMMUTABLE;
*py_var = newref_t(cvt_to_pylong(idc_var.num));
break;
case VT_FLOAT:
if ( *py_var == NULL )
{
double x;
if ( ph.realcvt(&x, (uint16 *)idc_var.e, (sizeof(x)/2-1)|010) != 0 )
INTERR(30160);
*py_var = newref_t(PyFloat_FromDouble(x));
break;
}
else
return CIP_IMMUTABLE;
case VT_REF:
{
if ( *py_var == NULL )
{
ref_t py_cls(get_idaapi_attr_by_id(PY_CLSID_CVT_BYREF));
if ( py_cls == NULL )
return CIP_FAILED;
// Create a byref object with None value. We populate it later
*py_var = newref_t(PyObject_CallFunctionObjArgs(py_cls.o, Py_None, NULL));
if ( PyW_GetError() || *py_var == NULL )
return CIP_FAILED;
}
int t = get_pyidc_cvt_type(py_var->o);
if ( t != PY_ICID_BYREF )
return CIP_FAILED;
// Dereference
// (Since we are not using VREF_COPY flag, we can safely const_cast)
idc_value_t *dref_v = VarDeref(const_cast<idc_value_t *>(&idc_var), VREF_LOOP);
if ( dref_v == NULL )
return CIP_FAILED;
// Can we recycle the object?
ref_t new_py_val(PyW_TryGetAttrString(py_var->o, S_PY_IDCCVT_VALUE_ATTR));
if ( new_py_val != NULL )
{
// Recycle
t = idcvar_to_pyvar(*dref_v, &new_py_val);
// Success? Nothing more to be done
if ( t == CIP_OK )
return CIP_OK;
// Clear it so we don't recycle it
new_py_val = ref_t();
}
// Try to convert (not recycle)
if ( idcvar_to_pyvar(*dref_v, &new_py_val) != CIP_OK )
return CIP_FAILED;
// Update the attribute
PyObject_SetAttrString(py_var->o, S_PY_IDCCVT_VALUE_ATTR, new_py_val.o);
break;
}
// Can convert back into a Python object or Python dictionary
// (Depending if py_var will be recycled and it was a dictionary)
case VT_OBJ:
{
// Check if this IDC object has __cvt_id__ and the __idc_cvt_value__ fields
idc_value_t idc_val;
if ( VarGetAttr(&idc_var, S_PY_IDCCVT_ID_ATTR, &idc_val) == eOk
&& VarGetAttr(&idc_var, S_PY_IDCCVT_VALUE_ATTR, &idc_val) == eOk )
{
// Extract the object
*py_var = borref_t((PyObject *) idc_val.pvoid);
return CIP_OK_OPAQUE;
}
ref_t obj;
bool is_dict = false;
// Need to create a new object?
if ( *py_var == NULL )
{
// Get skeleton class reference
ref_t py_cls(get_idaapi_attr_by_id(PY_CLSID_APPCALL_SKEL_OBJ));
if ( py_cls == NULL )
return CIP_FAILED;
// Call constructor
obj = newref_t(PyObject_CallFunctionObjArgs(py_cls.o, NULL));
if ( PyW_GetError() || obj == NULL )
return CIP_FAILED;
}
else
{
// Recycle existing variable
obj = *py_var;
if ( PyDict_Check(obj.o) )
is_dict = true;
}
// Walk the IDC attributes and store into python
for (const char *attr_name = VarFirstAttr(&idc_var);
attr_name != NULL;
attr_name = VarNextAttr(&idc_var, attr_name) )
{
// Get the attribute
idc_value_t v;
VarGetAttr(&idc_var, attr_name, &v, true);
// Convert attribute to a python value (recursively)
ref_t py_attr;
int cvt = idcvar_to_pyvar(v, &py_attr);
if ( cvt <= CIP_IMMUTABLE )
return CIP_FAILED;
if ( is_dict )
PyDict_SetItemString(obj.o, attr_name, py_attr.o);
else
PyObject_SetAttrString(obj.o, attr_name, py_attr.o);
}
*py_var = obj;
break;
}
// Unhandled type
default:
*py_var = ref_t();
return CIP_FAILED;
}
return CIP_OK;
}
//-------------------------------------------------------------------------
// Converts a Python variable into an IDC variable
// This function returns on one CIP_XXXX
int pyvar_to_idcvar(
const ref_t &py_var,
idc_value_t *idc_var,
int *gvar_sn)
{
PYW_GIL_CHECK_LOCKED_SCOPE();
// None / NULL
if ( py_var == NULL || py_var.o == Py_None )
{
idc_var->set_long(0);
}
// Numbers?
else if ( PyW_GetNumberAsIDC(py_var.o, idc_var) )
{
return CIP_OK;
}
// String
else if ( PyString_Check(py_var.o) )
{
idc_var->_set_string(PyString_AsString(py_var.o), PyString_Size(py_var.o));
}
// Boolean
else if ( PyBool_Check(py_var.o) )
{
idc_var->set_long(py_var.o == Py_True ? 1 : 0);
}
// Float
else if ( PyFloat_Check(py_var.o) )
{
double dresult = PyFloat_AsDouble(py_var.o);
ieee_realcvt((void *)&dresult, idc_var->e, 3);
idc_var->vtype = VT_FLOAT;
}
// void*
else if ( PyCObject_Check(py_var.o) )
{
idc_var->set_pvoid(PyCObject_AsVoidPtr(py_var.o));
}
// Python list?
else if ( PyList_CheckExact(py_var.o) || PyW_IsSequenceType(py_var.o) )
{
// Create the object
VarObject(idc_var);
// Determine list size and type
bool is_seq = !PyList_CheckExact(py_var.o);
Py_ssize_t size = is_seq ? PySequence_Size(py_var.o) : PyList_Size(py_var.o);
bool ok = true;
qstring attr_name;
// Convert each item
for ( Py_ssize_t i=0; i<size; i++ )
{
// Get the item
ref_t py_item;
if ( is_seq )
py_item = newref_t(PySequence_GetItem(py_var.o, i));
else
py_item = borref_t(PyList_GetItem(py_var.o, i));
// Convert the item into an IDC variable
idc_value_t v;
ok = pyvar_to_idcvar(py_item, &v, gvar_sn) >= CIP_OK;
if ( ok )
{
// Form the attribute name
newref_t py_int(PyInt_FromSsize_t(i));
ok = PyW_ObjectToString(py_int.o, &attr_name);
if ( !ok )
break;
// Store the attribute
VarSetAttr(idc_var, attr_name.c_str(), &v);
}
if ( !ok )
break;
}
return ok ? CIP_OK : CIP_FAILED;
}
// Dictionary: we convert to an IDC object
else if ( PyDict_Check(py_var.o) )
{
// Create an empty IDC object
VarObject(idc_var);
// Get the dict.items() list
newref_t py_items(PyDict_Items(py_var.o));
// Get the size of the list
qstring key_name;
bool ok = true;
Py_ssize_t size = PySequence_Size(py_items.o);
for ( Py_ssize_t i=0; i<size; i++ )
{
// Get item[i] -> (key, value)
PyObject *py_item = PyList_GetItem(py_items.o, i);
// Extract key/value
newref_t key(PySequence_GetItem(py_item, 0));
newref_t val(PySequence_GetItem(py_item, 1));
// Get key's string representation
PyW_ObjectToString(key.o, &key_name);
// Convert the attribute into an IDC value
idc_value_t v;
ok = pyvar_to_idcvar(val, &v, gvar_sn) >= CIP_OK;
if ( ok )
{
// Store the attribute
VarSetAttr(idc_var, key_name.c_str(), &v);
}
if ( !ok )
break;
}
return ok ? CIP_OK : CIP_FAILED;
}
// Possible function?
else if ( PyCallable_Check(py_var.o) )
{
idc_var->clear();
idc_var->vtype = VT_FUNC;
idc_var->funcidx = -1; // Does not apply
return CIP_OK;
}
// Objects:
// - pyidc_cvt objects: int64, byref, opaque
// - other python objects
else
{
// Get the type
int cvt_id = get_pyidc_cvt_type(py_var.o);
switch ( cvt_id )
{
//
// INT64
//
case PY_ICID_INT64:
{
// Get the value attribute
ref_t attr(PyW_TryGetAttrString(py_var.o, S_PY_IDCCVT_VALUE_ATTR));
if ( attr == NULL )
return false;
idc_var->set_int64(PyLong_AsLongLong(attr.o));
return CIP_OK;
}
//
// BYREF
//
case PY_ICID_BYREF:
{
// BYREF always require this parameter
if ( gvar_sn == NULL )
return CIP_FAILED;
// Get the value attribute
ref_t attr(PyW_TryGetAttrString(py_var.o, S_PY_IDCCVT_VALUE_ATTR));
if ( attr == NULL )
return CIP_FAILED;
// Create a global variable
char buf[MAXSTR];
qsnprintf(buf, sizeof(buf), S_PY_IDC_GLOBAL_VAR_FMT, *gvar_sn);
idc_value_t *gvar = add_idc_gvar(buf);
// Convert the python value into the IDC global variable
bool ok = pyvar_to_idcvar(attr, gvar, gvar_sn) >= CIP_OK;
if ( ok )
{
(*gvar_sn)++;
// Create a reference to this global variable
VarRef(idc_var, gvar);
}
return ok ? CIP_OK : CIP_FAILED;
}
//
// OPAQUE
//
case PY_ICID_OPAQUE:
{
if ( !wrap_PyObject_ptr(py_var, idc_var) )
return CIP_FAILED;
return CIP_OK_OPAQUE;
}
//
// Other objects
//
default:
// A normal object?
newref_t py_dir(PyObject_Dir(py_var.o));
Py_ssize_t size = PyList_Size(py_dir.o);
if ( py_dir == NULL || !PyList_Check(py_dir.o) || size == 0 )
return CIP_FAILED;
// Create the IDC object
VarObject(idc_var);
for ( Py_ssize_t i=0; i<size; i++ )
{
borref_t item(PyList_GetItem(py_dir.o, i));
const char *field_name = PyString_AsString(item.o);
if ( field_name == NULL )
continue;
size_t len = strlen(field_name);
// Skip private attributes
if ( (len > 2 )
&& (strncmp(field_name, "__", 2) == 0 )
&& (strncmp(field_name+len-2, "__", 2) == 0) )
{
continue;
}
idc_value_t v;
// Get the non-private attribute from the object
newref_t attr(PyObject_GetAttrString(py_var.o, field_name));
if (attr == NULL
// Convert the attribute into an IDC value
|| pyvar_to_idcvar(attr, &v, gvar_sn) < CIP_OK)
{
return CIP_FAILED;
}
// Store the attribute
VarSetAttr(idc_var, field_name, &v);
}
}
}
return CIP_OK;
}
