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/* Chrysalide - Outil d'analyse de fichiers binaires
* loaded.c - prototypes pour l'équivalent Python du fichier "analysis/loaded.c"
*
* Copyright (C) 2017 Cyrille Bagard
*
* This file is part of Chrysalide.
*
* Chrysalide is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* Chrysalide is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "loaded.h"
#include <assert.h>
#include <malloc.h>
#include <pygobject.h>
#include <i18n.h>
#include <analysis/loaded.h>
#include <core/global.h>
#include "../access.h"
#include "../helpers.h"
/* Lance l'analyse propre à l'élément chargé. */
static PyObject *py_loaded_content_analyze(PyObject *, PyObject *, PyObject *);
/* Lance l'analyse de l'élément chargé et attend sa conclusion. */
static PyObject *py_loaded_content_analyze_and_wait(PyObject *, PyObject *, PyObject *);
/* Etablit une liste d'obscurcissements présents. */
static PyObject *py_loaded_content_detect_obfuscators(PyObject *, PyObject *);
/* Détermine le nombre de vues disponibles pour un contenu. */
static PyObject *py_loaded_content_count_views(PyObject *, PyObject *);
/* Fournit le contenu représenté de l'élément chargé. */
static PyObject *py_loaded_content_get_content(PyObject *, void *);
/******************************************************************************
* *
* Paramètres : self = contenu binaire à manipuler. *
* args = arguments fournis à l'appel. *
* kwds = arguments de type key=val fournis. *
* *
* Description : Lance l'analyse propre à l'élément chargé. *
* *
* Retour : Rien (None). *
* *
* Remarques : - *
* *
******************************************************************************/
static PyObject *py_loaded_content_analyze(PyObject *self, PyObject *args, PyObject *kwds)
{
int connect; /* Connexion à la base ? */
int cache; /* Préparation de rendu ? */
int ret; /* Bilan de lecture des args. */
GLoadedContent *content; /* Version GLib de l'élément */
static char *kwlist[] = { "connect", "cache", NULL };
#define LOADED_CONTENT_ANALYZE_METHOD PYTHON_METHOD_DEF \
( \
analyze, "$self, /, connect='?', cache='?'", \
METH_VARARGS | METH_KEYWORDS, py_loaded_content, \
"Start the analysis of the loaded binary and send an *analyzed* signal" \
" when done." \
"\n" \
"The *connect* parameter defines if connections to database servers" \
" (internal and/or remote) will be established. The default value" \
" depends on the running mode: if the analysis is run from the GUI," \
" the binary will get connected to servers; in batch mode, no" \
" connection will be made." \
"\n" \
"The *cache* parameter rules the build of the cache for rendering" \
" lines. The same behavior relative to the running mode applies." \
"\n" \
"All theses operations can be forced by providing True values as" \
" parameters." \
)
connect = is_batch_mode() ? 0 : 1;
cache = is_batch_mode() ? 0 : 1;
ret = PyArg_ParseTupleAndKeywords(args, kwds, "|pp", kwlist, &connect, &cache);
if (!ret) return NULL;
content = G_LOADED_CONTENT(pygobject_get(self));
g_loaded_content_analyze(content, connect, cache);
Py_RETURN_NONE;
}
/******************************************************************************
* *
* Paramètres : self = contenu binaire à manipuler. *
* args = arguments fournis à l'appel. *
* kwds = arguments de type key=val fournis. *
* *
* Description : Lance l'analyse de l'élément chargé et attend sa conclusion. *
* *
* Retour : Bilan de l'opération. *
* *
* Remarques : - *
* *
******************************************************************************/
static PyObject *py_loaded_content_analyze_and_wait(PyObject *self, PyObject *args, PyObject *kwds)
{
PyObject *result; /* Bilan à retourner */
int connect; /* Connexion à la base ? */
int cache; /* Préparation de rendu ? */
int ret; /* Bilan de lecture des args. */
PyThreadState *_save; /* Sauvegarde de contexte */
GLoadedContent *content; /* Version GLib de l'élément */
bool status; /* Bilan de l'opération */
static char *kwlist[] = { "connect", "cache", NULL };
#define LOADED_CONTENT_ANALYZE_AND_WAIT_METHOD PYTHON_METHOD_DEF \
( \
analyze_and_wait, "$self, /, connect='?', cache='?'", \
METH_VARARGS | METH_KEYWORDS, py_loaded_content, \
"Run the analysis of the loaded binary and wait for its completion." \
"\n" \
"The final analysis status is returned as boolean." \
"\n" \
"The *connect* parameter defines if connections to database servers" \
" (internal and/or remote) will be established. The default value" \
" depends on the running mode: if the analysis is run from the GUI," \
" the binary will get connected to servers; in batch mode, no" \
" connection will be made." \
"\n" \
"The *cache* parameter rules the build of the cache for rendering" \
" lines. The same behavior relative to the running mode applies." \
"\n" \
"All theses operations can be forced by providing True values as" \
" parameters." \
)
connect = is_batch_mode() ? 0 : 1;
cache = is_batch_mode() ? 0 : 1;
ret = PyArg_ParseTupleAndKeywords(args, kwds, "|pp", kwlist, &connect, &cache);
if (!ret) return NULL;
content = G_LOADED_CONTENT(pygobject_get(self));
Py_UNBLOCK_THREADS;
status = g_loaded_content_analyze_and_wait(content, connect, cache);
Py_BLOCK_THREADS;
result = status ? Py_True : Py_False;
Py_INCREF(result);
return result;
}
/******************************************************************************
* *
* Paramètres : self = contenu binaire à manipuler. *
* args = non utilisé ici. *
* *
* Description : Etablit une liste d'obscurcissements présents. *
* *
* Retour : Désignations humaines correspondantes. *
* *
* Remarques : - *
* *
******************************************************************************/
static PyObject *py_loaded_content_detect_obfuscators(PyObject *self, PyObject *args)
{
PyObject *result; /* Bilan à retourner */
int version; /* Avec la version si possible */
int ret; /* Bilan de lecture des args. */
GLoadedContent *content; /* Version GLib de l'élément */
size_t count; /* Nombre de détections */
char **detections; /* Liste d'obscurcissements */
size_t i; /* Boucle de parcours */
ret = PyArg_ParseTuple(args, "p", &version);
if (!ret) return NULL;
content = G_LOADED_CONTENT(pygobject_get(self));
detections = g_loaded_content_detect_obfuscators(content, version, &count);
result = PyTuple_New(count);
for (i = 0; i < count; i++)
{
PyTuple_SetItem(result, i, PyUnicode_FromString(detections[i]));
free(detections[i]);
}
if (detections != NULL)
free(detections);
return result;
}
/******************************************************************************
* *
* Paramètres : self = contenu chargé à manipuler. *
* args = non utilisé ici. *
* *
* Description : Détermine le nombre de vues disponibles pour un contenu. *
* *
* Retour : Quantité strictement positive. *
* *
* Remarques : - *
* *
******************************************************************************/
static PyObject *py_loaded_content_count_views(PyObject *self, PyObject *args)
{
PyObject *result; /* Instance à retourner */
GLoadedContent *content; /* Version GLib de l'élément */
size_t count; /* Quantité à retourner */
content = G_LOADED_CONTENT(pygobject_get(self));
count = g_loaded_content_count_views(content);
result = PyLong_FromUnsignedLongLong(count);
return result;
}
/******************************************************************************
* *
* Paramètres : self = objet Python concerné par l'appel. *
* closure = non utilisé ici. *
* *
* Description : Fournit le contenu représenté de l'élément chargé. *
* *
* Retour : Contenu représenté. *
* *
* Remarques : - *
* *
******************************************************************************/
static PyObject *py_loaded_content_get_content(PyObject *self, void *closure)
{
PyObject *result; /* Instance Python à retourner */
GLoadedContent *content; /* Version GLib de l'élément */
GBinContent *bincnt; /* Contenu binaire associé */
content = G_LOADED_CONTENT(pygobject_get(self));
bincnt = g_loaded_content_get_content(content);
result = pygobject_new(G_OBJECT(bincnt));
g_object_unref(G_OBJECT(bincnt));
return result;
}
/******************************************************************************
* *
* Paramètres : - *
* *
* Description : Fournit un accès à une définition de type à diffuser. *
* *
* Retour : Définition d'objet pour Python. *
* *
* Remarques : - *
* *
******************************************************************************/
PyTypeObject *get_python_loaded_content_type(void)
{
static PyMethodDef py_loaded_content_methods[] = {
LOADED_CONTENT_ANALYZE_METHOD,
LOADED_CONTENT_ANALYZE_AND_WAIT_METHOD,
{
"detect_obfuscators", py_loaded_content_detect_obfuscators,
METH_VARARGS,
"detect_obfuscators($self, version, /)\n--\n\nList all detected obfuscators."
},
{
"count_views", py_loaded_content_count_views,
METH_NOARGS,
"count_views($self, /)\n--\n\nCompute the quantity of available views."
},
{ NULL }
};
static PyGetSetDef py_loaded_content_getseters[] = {
{
"content", py_loaded_content_get_content, NULL,
"Binary content.", NULL
},
{ NULL }
};
static PyTypeObject py_loaded_content_type = {
PyVarObject_HEAD_INIT(NULL, 0)
.tp_name = "pychrysalide.analysis.LoadedContent",
.tp_basicsize = sizeof(PyObject),
.tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
.tp_doc = "PyChrysalide loaded content",
.tp_methods = py_loaded_content_methods,
.tp_getset = py_loaded_content_getseters
};
return &py_loaded_content_type;
}
/******************************************************************************
* *
* Paramètres : - *
* *
* Description : Prend en charge l'objet 'pychrysalide.....LoadedContent'. *
* *
* Retour : Bilan de l'opération. *
* *
* Remarques : - *
* *
******************************************************************************/
bool ensure_python_loaded_content_is_registered(void)
{
PyTypeObject *type; /* Type Python 'LoadedContent' */
PyObject *module; /* Module à recompléter */
PyObject *dict; /* Dictionnaire du module */
type = get_python_loaded_content_type();
if (!PyType_HasFeature(type, Py_TPFLAGS_READY))
{
module = get_access_to_python_module("pychrysalide.analysis");
dict = PyModule_GetDict(module);
if (!register_interface_for_pygobject(dict, G_TYPE_LOADED_CONTENT, type))
return false;
}
return true;
}
/******************************************************************************
* *
* Paramètres : arg = argument quelconque à tenter de convertir. *
* dst = destination des valeurs récupérées en cas de succès. *
* *
* Description : Tente de convertir en contenu chargé. *
* *
* Retour : Bilan de l'opération, voire indications supplémentaires. *
* *
* Remarques : - *
* *
******************************************************************************/
int convert_to_loaded_content(PyObject *arg, void *dst)
{
int result; /* Bilan à retourner */
result = PyObject_IsInstance(arg, (PyObject *)get_python_loaded_content_type());
switch (result)
{
case -1:
/* L'exception est déjà fixée par Python */
result = 0;
break;
case 0:
PyErr_SetString(PyExc_TypeError, "unable to convert the provided argument to loaded content");
break;
case 1:
*((GLoadedContent **)dst) = G_LOADED_CONTENT(pygobject_get(arg));
break;
default:
assert(false);
break;
}
return result;
}
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