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authorCyrille Bagard <nocbos@gmail.com>2023-10-02 07:14:50 (GMT)
committerCyrille Bagard <nocbos@gmail.com>2023-10-02 07:14:50 (GMT)
commit1b991b5c66cc44b6f93a14c1c265683074224004 (patch)
tree0f05b9daad87d85c9318fe28ef0d2f8a787b0b37 /plugins/encodings/python/rost
parente662be152d0b2fe0d1626a845121db5f1a51d9aa (diff)
Implement Base64 encoding for scan pattern modifications.
Diffstat (limited to 'plugins/encodings/python/rost')
-rw-r--r--plugins/encodings/python/rost/Makefile.am14
-rw-r--r--plugins/encodings/python/rost/base64.c211
-rw-r--r--plugins/encodings/python/rost/base64.h45
-rw-r--r--plugins/encodings/python/rost/module.c63
-rw-r--r--plugins/encodings/python/rost/module.h38
5 files changed, 371 insertions, 0 deletions
diff --git a/plugins/encodings/python/rost/Makefile.am b/plugins/encodings/python/rost/Makefile.am
new file mode 100644
index 0000000..a5a2969
--- /dev/null
+++ b/plugins/encodings/python/rost/Makefile.am
@@ -0,0 +1,14 @@
+
+noinst_LTLIBRARIES = libencodingspythonrost.la
+
+libencodingspythonrost_la_SOURCES = \
+ base64.h base64.c \
+ module.h module.c
+
+libencodingspythonrost_la_CFLAGS = $(TOOLKIT_CFLAGS) $(LIBXML_CFLAGS) $(LIBPYTHON_CFLAGS) $(LIBPYGOBJECT_CFLAGS) \
+ -I$(top_srcdir)/src -DNO_IMPORT_PYGOBJECT
+
+
+devdir = $(includedir)/chrysalide-$(subdir)
+
+dev_HEADERS = $(libencodingspythonrost_la_SOURCES:%c=)
diff --git a/plugins/encodings/python/rost/base64.c b/plugins/encodings/python/rost/base64.c
new file mode 100644
index 0000000..57bba76
--- /dev/null
+++ b/plugins/encodings/python/rost/base64.c
@@ -0,0 +1,211 @@
+
+/* Chrysalide - Outil d'analyse de fichiers binaires
+ * base64.c - équivalent Python du fichier "plugins/encodings/rost/base64.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 "base64.h"
+
+
+#include <pygobject.h>
+
+
+#include <i18n.h>
+#include <plugins/pychrysalide/access.h>
+#include <plugins/pychrysalide/helpers.h>
+#include <plugins/pychrysalide/analysis/scan/patterns/modifier.h>
+
+
+#include "../../rost/base64.h"
+
+
+
+CREATE_DYN_CONSTRUCTOR(scan_base64_modifier, G_TYPE_SCAN_BASE64_MODIFIER);
+
+/* Initialise une instance sur la base du dérivé de GObject. */
+static int py_scan_base64_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_base64_modifier_init(PyObject *self, PyObject *args, PyObject *kwds)
+{
+ int ret; /* Bilan de lecture des args. */
+
+#define SCAN_BASE64_MODIFIER_DOC \
+ "The *Base64Modifier* class transforms a byte pattern into its" \
+ " base64 encoded form.\n" \
+ "\n" \
+ "Instances can be created using the following constructor:\n" \
+ "\n" \
+ " Base64Modifier()"
+
+ /* 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_base64_modifier_type(void)
+{
+ static PyMethodDef py_scan_base64_modifier_methods[] = {
+ { NULL }
+ };
+
+ static PyGetSetDef py_scan_base64_modifier_getseters[] = {
+ { NULL }
+ };
+
+ static PyTypeObject py_scan_base64_modifier_type = {
+
+ PyVarObject_HEAD_INIT(NULL, 0)
+
+ .tp_name = "pychrysalide.analysis.scan.patterns.modifiers.Base64Modifier",
+ .tp_basicsize = sizeof(PyGObject),
+
+ .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
+
+ .tp_doc = SCAN_BASE64_MODIFIER_DOC,
+
+ .tp_methods = py_scan_base64_modifier_methods,
+ .tp_getset = py_scan_base64_modifier_getseters,
+
+ .tp_init = py_scan_base64_modifier_init,
+ .tp_new = py_scan_base64_modifier_new,
+
+ };
+
+ return &py_scan_base64_modifier_type;
+
+}
+
+
+/******************************************************************************
+* *
+* Paramètres : - *
+* *
+* Description : Prend en charge l'objet 'pychrysalide....Base64Modifier'. *
+* *
+* Retour : Bilan de l'opération. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+bool ensure_python_scan_base64_modifier_is_registered(void)
+{
+ PyTypeObject *type; /* Type Python Base64Modifier */
+ PyObject *module; /* Module à recompléter */
+ PyObject *dict; /* Dictionnaire du module */
+
+ type = get_python_scan_base64_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_scan_token_modifier_is_registered())
+ return false;
+
+ if (!register_class_for_pygobject(dict, G_TYPE_SCAN_BASE64_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 par encodage en Base64. *
+* *
+* Retour : Bilan de l'opération, voire indications supplémentaires. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+int convert_to_scan_base64_modifier(PyObject *arg, void *dst)
+{
+ int result; /* Bilan à retourner */
+
+ result = PyObject_IsInstance(arg, (PyObject *)get_python_scan_base64_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 Base64 modifier");
+ break;
+
+ case 1:
+ *((GScanBase64Modifier **)dst) = G_SCAN_BASE64_MODIFIER(pygobject_get(arg));
+ break;
+
+ default:
+ assert(false);
+ break;
+
+ }
+
+ return result;
+
+}
diff --git a/plugins/encodings/python/rost/base64.h b/plugins/encodings/python/rost/base64.h
new file mode 100644
index 0000000..c4459e9
--- /dev/null
+++ b/plugins/encodings/python/rost/base64.h
@@ -0,0 +1,45 @@
+
+/* Chrysalide - Outil d'analyse de fichiers binaires
+ * base64.h - équivalent Python du fichier "plugins/encodings/rost/base64.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_ENCODINGS_PYTHON_ROST_BASE64_H
+#define _PLUGINS_ENCODINGS_PYTHON_ROST_BASE64_H
+
+
+#include <Python.h>
+#include <stdbool.h>
+
+
+
+/* Fournit un accès à une définition de type à diffuser. */
+PyTypeObject *get_python_scan_base64_modifier_type(void);
+
+/* Prend en charge l'objet 'pychrysalide....Base64Modifier'. */
+bool ensure_python_scan_base64_modifier_is_registered(void);
+
+/* Tente de convertir en transformation par encodage en Base64. */
+int convert_to_scan_base64_modifier(PyObject *, void *);
+
+
+
+#endif /* _PLUGINS_ENCODINGS_PYTHON_ROST_BASE64_H */
diff --git a/plugins/encodings/python/rost/module.c b/plugins/encodings/python/rost/module.c
new file mode 100644
index 0000000..6bd7187
--- /dev/null
+++ b/plugins/encodings/python/rost/module.c
@@ -0,0 +1,63 @@
+
+/* Chrysalide - Outil d'analyse de fichiers binaires
+ * module.c - intégration du répertoire rost en tant que module
+ *
+ * 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 "module.h"
+
+
+#include <Python.h>
+
+
+#include <plugins/pychrysalide/access.h>
+#include <plugins/pychrysalide/helpers.h>
+
+
+#include "base64.h"
+
+
+
+/******************************************************************************
+* *
+* Paramètres : - *
+* *
+* Description : Intègre les modificateurs pour ROST. *
+* *
+* Retour : Bilan de l'opération. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+bool register_encodings_rost_modifiers(void)
+{
+ bool result; /* Bilan à retourner */
+
+ result = true;
+
+ if (result) result = ensure_python_scan_base64_modifier_is_registered();
+
+ assert(result);
+
+ return result;
+
+}
diff --git a/plugins/encodings/python/rost/module.h b/plugins/encodings/python/rost/module.h
new file mode 100644
index 0000000..ba021cb
--- /dev/null
+++ b/plugins/encodings/python/rost/module.h
@@ -0,0 +1,38 @@
+
+/* Chrysalide - Outil d'analyse de fichiers binaires
+ * module.h - prototypes pour l'intégration du répertoire rost en tant que module
+ *
+ * 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_ENCODINGS_PYTHON_ROST_MODULE_H
+#define _PLUGINS_ENCODINGS_PYTHON_ROST_MODULE_H
+
+
+#include <stdbool.h>
+
+
+
+/* Intègre les modificateurs pour ROST. */
+bool register_encodings_rost_modifiers(void);
+
+
+
+#endif /* _PLUGINS_ENCODINGS_PYTHON_ROST_MODULE_H */