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authorCyrille Bagard <nocbos@gmail.com>2023-10-18 06:34:20 (GMT)
committerCyrille Bagard <nocbos@gmail.com>2023-10-18 06:34:20 (GMT)
commit178e0de0a8962def1a4b1d612f86b0ca5f3bed3f (patch)
tree38f468596848e2bed787594d9f15dbed7da55406 /plugins/apihashing/python
parent4f2fdc0f97f49b26772c2a466d22fdf84eb0f6d5 (diff)
Add support for the DJB2 algorithm.
Diffstat (limited to 'plugins/apihashing/python')
-rw-r--r--plugins/apihashing/python/classics/Makefile.am1
-rw-r--r--plugins/apihashing/python/classics/djb2.c211
-rw-r--r--plugins/apihashing/python/classics/djb2.h45
-rw-r--r--plugins/apihashing/python/classics/module.c2
-rw-r--r--plugins/apihashing/python/classics/ror13.c8
5 files changed, 263 insertions, 4 deletions
diff --git a/plugins/apihashing/python/classics/Makefile.am b/plugins/apihashing/python/classics/Makefile.am
index 4a50df3..e3dbc7e 100644
--- a/plugins/apihashing/python/classics/Makefile.am
+++ b/plugins/apihashing/python/classics/Makefile.am
@@ -2,6 +2,7 @@
noinst_LTLIBRARIES = libapihashingpythonclassics.la
libapihashingpythonclassics_la_SOURCES = \
+ djb2.h djb2.c \
module.h module.c \
ror13.h ror13.c
diff --git a/plugins/apihashing/python/classics/djb2.c b/plugins/apihashing/python/classics/djb2.c
new file mode 100644
index 0000000..f3d0844
--- /dev/null
+++ b/plugins/apihashing/python/classics/djb2.c
@@ -0,0 +1,211 @@
+
+/* Chrysalide - Outil d'analyse de fichiers binaires
+ * djb2.c - équivalent Python du fichier "plugins/apihashing/classics/djb2.c"
+ *
+ * Copyright (C) 2023 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 "djb2.h"
+
+
+#include <pygobject.h>
+
+
+#include <i18n.h>
+#include <plugins/pychrysalide/access.h>
+#include <plugins/pychrysalide/helpers.h>
+
+
+#include "../apihash.h"
+#include "../../classics/djb2.h"
+
+
+
+CREATE_DYN_CONSTRUCTOR(scan_djb2_modifier, G_TYPE_SCAN_DJB2_MODIFIER);
+
+/* Initialise une instance sur la base du dérivé de GObject. */
+static int py_scan_djb2_modifier_init(PyObject *, PyObject *, PyObject *);
+
+
+
+/******************************************************************************
+* *
+* Paramètres : self = objet à initialiser (théoriquement). *
+* args = arguments fournis à l'appel. *
+* kwds = arguments de type key=val fournis. *
+* *
+* Description : Initialise une instance sur la base du dérivé de GObject. *
+* *
+* Retour : 0. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+static int py_scan_djb2_modifier_init(PyObject *self, PyObject *args, PyObject *kwds)
+{
+ int ret; /* Bilan de lecture des args. */
+
+#define SCAN_DJB2_MODIFIER_DOC \
+ "The *Djb2Modifier* class transforms a byte pattern into its" \
+ " djb2 encoded form.\n" \
+ "\n" \
+ "Instances can be created using the following constructor:\n" \
+ "\n" \
+ " Djb2Modifier()"
+
+ /* Initialisation d'un objet GLib */
+
+ ret = forward_pygobjet_init(self);
+ if (ret == -1) return -1;
+
+ return 0;
+
+}
+
+
+/******************************************************************************
+* *
+* Paramètres : - *
+* *
+* Description : Fournit un accès à une définition de type à diffuser. *
+* *
+* Retour : Définition d'objet pour Python. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+PyTypeObject *get_python_scan_djb2_modifier_type(void)
+{
+ static PyMethodDef py_scan_djb2_modifier_methods[] = {
+ { NULL }
+ };
+
+ static PyGetSetDef py_scan_djb2_modifier_getseters[] = {
+ { NULL }
+ };
+
+ static PyTypeObject py_scan_djb2_modifier_type = {
+
+ PyVarObject_HEAD_INIT(NULL, 0)
+
+ .tp_name = "pychrysalide.analysis.scan.patterns.modifiers.Djb2Modifier",
+ .tp_basicsize = sizeof(PyGObject),
+
+ .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
+
+ .tp_doc = SCAN_DJB2_MODIFIER_DOC,
+
+ .tp_methods = py_scan_djb2_modifier_methods,
+ .tp_getset = py_scan_djb2_modifier_getseters,
+
+ .tp_init = py_scan_djb2_modifier_init,
+ .tp_new = py_scan_djb2_modifier_new,
+
+ };
+
+ return &py_scan_djb2_modifier_type;
+
+}
+
+
+/******************************************************************************
+* *
+* Paramètres : - *
+* *
+* Description : Prend en charge l'objet 'pychrysalide....Djb2Modifier'. *
+* *
+* Retour : Bilan de l'opération. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+bool ensure_python_scan_djb2_modifier_is_registered(void)
+{
+ PyTypeObject *type; /* Type Python Djb2Modifier */
+ PyObject *module; /* Module à recompléter */
+ PyObject *dict; /* Dictionnaire du module */
+
+ type = get_python_scan_djb2_modifier_type();
+
+ if (!PyType_HasFeature(type, Py_TPFLAGS_READY))
+ {
+ module = get_access_to_python_module("pychrysalide.analysis.scan.patterns.modifiers");
+
+ dict = PyModule_GetDict(module);
+
+ if (!ensure_python_api_hash_modifier_is_registered())
+ return false;
+
+ if (!register_class_for_pygobject(dict, G_TYPE_SCAN_DJB2_MODIFIER, 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 transformation en empreinte djb2. *
+* *
+* Retour : Bilan de l'opération, voire indications supplémentaires. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+int convert_to_scan_djb2_modifier(PyObject *arg, void *dst)
+{
+ int result; /* Bilan à retourner */
+
+ result = PyObject_IsInstance(arg, (PyObject *)get_python_scan_djb2_modifier_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 djb2 modifier");
+ break;
+
+ case 1:
+ *((GScanDjb2Modifier **)dst) = G_SCAN_DJB2_MODIFIER(pygobject_get(arg));
+ break;
+
+ default:
+ assert(false);
+ break;
+
+ }
+
+ return result;
+
+}
diff --git a/plugins/apihashing/python/classics/djb2.h b/plugins/apihashing/python/classics/djb2.h
new file mode 100644
index 0000000..b4086f8
--- /dev/null
+++ b/plugins/apihashing/python/classics/djb2.h
@@ -0,0 +1,45 @@
+
+/* Chrysalide - Outil d'analyse de fichiers binaires
+ * djb2.h - équivalent Python du fichier "plugins/apihashing/classics/djb2.h"
+ *
+ * Copyright (C) 2023 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
+ */
+
+
+#ifndef _PLUGINS_APIHASHING_PYTHON_CLASSICS_DJB2_H
+#define _PLUGINS_APIHASHING_PYTHON_CLASSICS_DJB2_H
+
+
+#include <Python.h>
+#include <stdbool.h>
+
+
+
+/* Fournit un accès à une définition de type à diffuser. */
+PyTypeObject *get_python_scan_djb2_modifier_type(void);
+
+/* Prend en charge l'objet 'pychrysalide.analysis.scan.patterns.modifiers.Djb2Modifier'. */
+bool ensure_python_scan_djb2_modifier_is_registered(void);
+
+/* Tente de convertir en transformation en empreinte djb2. */
+int convert_to_scan_djb2_modifier(PyObject *, void *);
+
+
+
+#endif /* _PLUGINS_APIHASHING_PYTHON_CLASSICS_DJB2_H */
diff --git a/plugins/apihashing/python/classics/module.c b/plugins/apihashing/python/classics/module.c
index 70c48e0..7a2d3fa 100644
--- a/plugins/apihashing/python/classics/module.c
+++ b/plugins/apihashing/python/classics/module.c
@@ -33,6 +33,7 @@
#include <plugins/pychrysalide/helpers.h>
+#include "djb2.h"
#include "ror13.h"
@@ -55,6 +56,7 @@ bool register_apihashing_classics_modifiers(void)
result = true;
+ if (result) result = ensure_python_scan_djb2_modifier_is_registered();
if (result) result = ensure_python_scan_ror13_modifier_is_registered();
assert(result);
diff --git a/plugins/apihashing/python/classics/ror13.c b/plugins/apihashing/python/classics/ror13.c
index 0ecad1c..429f7da 100644
--- a/plugins/apihashing/python/classics/ror13.c
+++ b/plugins/apihashing/python/classics/ror13.c
@@ -63,9 +63,9 @@ static int py_scan_ror13_modifier_init(PyObject *self, PyObject *args, PyObject
{
int ret; /* Bilan de lecture des args. */
-#define SCAN_ROR13_MODIFIER_DOC \
- "The *Ror13Modifier* class transforms a byte pattern into its" \
- " ror13 encoded form.\n" \
+#define SCAN_ROR13_MODIFIER_DOC \
+ "The *Ror13Modifier* class transforms a byte pattern into its" \
+ " ror13 encoded form.\n" \
"\n" \
"Instances can be created using the following constructor:\n" \
"\n" \
@@ -141,7 +141,7 @@ PyTypeObject *get_python_scan_ror13_modifier_type(void)
bool ensure_python_scan_ror13_modifier_is_registered(void)
{
- PyTypeObject *type; /* Type Python Ror13Modifier */
+ PyTypeObject *type; /* Type Python Ror13Modifier */
PyObject *module; /* Module à recompléter */
PyObject *dict; /* Dictionnaire du module */