summaryrefslogtreecommitdiff
path: root/plugins/pychrysalide/glibext/tpmem.c
diff options
context:
space:
mode:
Diffstat (limited to 'plugins/pychrysalide/glibext/tpmem.c')
-rw-r--r--plugins/pychrysalide/glibext/tpmem.c508
1 files changed, 508 insertions, 0 deletions
diff --git a/plugins/pychrysalide/glibext/tpmem.c b/plugins/pychrysalide/glibext/tpmem.c
new file mode 100644
index 0000000..ae07008
--- /dev/null
+++ b/plugins/pychrysalide/glibext/tpmem.c
@@ -0,0 +1,508 @@
+
+/* Chrysalide - Outil d'analyse de fichiers binaires
+ * tpmem.c - équivalent Python du fichier "analysis/storage/tpmem.c"
+ *
+ * Copyright (C) 2020 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 "tpmem.h"
+
+
+#include <pygobject.h>
+
+
+#include <analysis/storage/tpmem.h>
+#include <plugins/dt.h>
+
+
+#include "../../access.h"
+#include "../../helpers.h"
+#include "../../common/packed.h"
+
+
+
+/* ------------------------ GLUE POUR CREATION DEPUIS PYTHON ------------------------ */
+
+
+/* Accompagne la création d'une instance dérivée en Python. */
+static PyObject *py_type_memory_new(PyTypeObject *, PyObject *, PyObject *);
+
+/* Initialise une instance sur la base du dérivé de GObject. */
+static int py_type_memory_init(PyObject *, PyObject *, PyObject *);
+
+
+
+/* -------------------------- TAMPON POUR CODE DESASSEMBLE -------------------------- */
+
+
+/* Apprend tous les types mémorisés dans un tampon. */
+static PyObject *py_type_memory_load_types(PyObject *, PyObject *);
+
+/* Crée une nouvelle instance d'objet à partir de son type. */
+static PyObject *py_type_memory_create_object(PyObject *, PyObject *);
+
+/* Sauvegarde le type d'un objet instancié. */
+static PyObject *py_type_memory_store_object_gtype(PyObject *, PyObject *);
+
+/* Enregistre tous les types mémorisés dans un tampon. */
+static PyObject *py_type_memory_store_types(PyObject *, PyObject *);
+
+
+
+/* ---------------------------------------------------------------------------------- */
+/* GLUE POUR CREATION DEPUIS PYTHON */
+/* ---------------------------------------------------------------------------------- */
+
+
+/******************************************************************************
+* *
+* Paramètres : type = type du nouvel objet à mettre en place. *
+* args = éventuelle liste d'arguments. *
+* kwds = éventuel dictionnaire de valeurs mises à disposition. *
+* *
+* Description : Accompagne la création d'une instance dérivée en Python. *
+* *
+* Retour : Nouvel objet Python mis en place ou NULL en cas d'échec. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+static PyObject *py_type_memory_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
+{
+ PyObject *result; /* Objet à retourner */
+ PyTypeObject *base; /* Type de base à dériver */
+ bool first_time; /* Evite les multiples passages*/
+ GType gtype; /* Nouveau type de processeur */
+ bool status; /* Bilan d'un enregistrement */
+
+ /* Validations diverses */
+
+ base = get_python_type_memory_type();
+
+ if (type == base)
+ goto simple_way;
+
+ /* Mise en place d'un type dédié */
+
+ first_time = (g_type_from_name(type->tp_name) == 0);
+
+ gtype = build_dynamic_type(G_TYPE_TYPE_MEMORY, type->tp_name, NULL, NULL, NULL);
+
+ if (first_time)
+ {
+ status = register_class_for_dynamic_pygobject(gtype, type);
+
+ if (!status)
+ {
+ result = NULL;
+ goto exit;
+ }
+
+ }
+
+ /* On crée, et on laisse ensuite la main à PyGObject_Type.tp_init() */
+
+ simple_way:
+
+ result = PyType_GenericNew(type, args, kwds);
+
+ exit:
+
+ return result;
+
+}
+
+
+/******************************************************************************
+* *
+* 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_type_memory_init(PyObject *self, PyObject *args, PyObject *kwds)
+{
+ int ret; /* Bilan de lecture des args. */
+
+#define TYPE_MEMORY_DOC \
+ "The TypeMemory remembers all the types of objects involved in" \
+ " a serialization process.\n" \
+ "\n" \
+ "Instances can be created using the following constructor:\n" \
+ "\n" \
+ " TypeMemory()" \
+
+ /* Initialisation d'un objet GLib */
+
+ ret = forward_pygobjet_init(self);
+ if (ret == -1) return -1;
+
+ return 0;
+
+}
+
+
+
+/* ---------------------------------------------------------------------------------- */
+/* TAMPON POUR CODE DESASSEMBLE */
+/* ---------------------------------------------------------------------------------- */
+
+
+/******************************************************************************
+* *
+* Paramètres : self = classe représentant une mémorisation de types. *
+* args = arguments fournis à l'appel. *
+* *
+* Description : Apprend tous les types mémorisés dans un tampon. *
+* *
+* Retour : Bilan de l'opération. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+static PyObject *py_type_memory_load_types(PyObject *self, PyObject *args)
+{
+ PyObject *result; /* Bilan à retourner */
+ packed_buffer_t *pbuf; /* Tampon à consulter */
+ int ret; /* Bilan de lecture des args. */
+ GTypeMemory *tpmem; /* Mémorisation native */
+ bool status; /* Bilan de l'opération */
+
+#define TYPE_MEMORY_LOAD_TYPES_METHOD PYTHON_METHOD_DEF \
+( \
+ load_types, "$self, pbuf", \
+ METH_VARARGS, py_type_memory, \
+ "Read types from a buffer.\n" \
+ "\n" \
+ "This operation is usually handled internally by the" \
+ " Chrysalide's core.\n" \
+ "\n" \
+ "The *pbuf* parameter is a pychrysalide.common.PackedBuffer"\
+ " instance providing buffered data to read." \
+ "\n" \
+ "The result is a boolean value indicating the status of" \
+ " the operation: True for success, False for failure." \
+)
+
+ ret = PyArg_ParseTuple(args, "O&", convert_to_packed_buffer, &pbuf);
+ if (!ret) return NULL;
+
+ tpmem = G_TYPE_MEMORY(pygobject_get(self));
+
+ status = g_type_memory_load_types(tpmem, pbuf);
+
+ result = status ? Py_True : Py_False;
+ Py_INCREF(result);
+
+ return result;
+
+}
+
+
+/******************************************************************************
+* *
+* Paramètres : self = classe représentant une mémorisation de types. *
+* args = arguments fournis à l'appel. *
+* *
+* Description : Crée une nouvelle instance d'objet à partir de son type. *
+* *
+* Retour : Instance issue de l'opération ou NULL. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+static PyObject *py_type_memory_create_object(PyObject *self, PyObject *args)
+{
+ PyObject *result; /* Instance à retourner */
+ packed_buffer_t *pbuf; /* Tampon à consulter */
+ int ret; /* Bilan de lecture des args. */
+ GTypeMemory *tpmem; /* Mémorisation native */
+ GObject *obj; /* Instance retournée */
+
+#define TYPE_MEMORY_CREATE_OBJECT_METHOD PYTHON_METHOD_DEF \
+( \
+ create_object, "$self, pbuf", \
+ METH_VARARGS, py_type_memory, \
+ "Create a new GLib object from serialized data.\n" \
+ "\n" \
+ "The *pbuf* parameter is a pychrysalide.common.PackedBuffer" \
+ " instance providing buffered data to read." \
+ "\n" \
+ "The result is a Python object linked to a native GLib" \
+ " object instance." \
+)
+
+ ret = PyArg_ParseTuple(args, "O&", convert_to_packed_buffer, &pbuf);
+ if (!ret) return NULL;
+
+ tpmem = G_TYPE_MEMORY(pygobject_get(self));
+
+ obj = g_type_memory_create_object(tpmem, pbuf);
+
+ result = pygobject_new(obj);
+
+ return result;
+
+}
+
+
+/******************************************************************************
+* *
+* Paramètres : self = classe représentant une mémorisation de types. *
+* args = arguments fournis à l'appel. *
+* *
+* Description : Sauvegarde le type d'un objet instancié. *
+* *
+* Retour : Bilan de l'opération. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+static PyObject *py_type_memory_store_object_gtype(PyObject *self, PyObject *args)
+{
+ PyObject *result; /* Bilan à retourner */
+ GObject *obj; /* Instance à traiter */
+ packed_buffer_t *pbuf; /* Tampon à consulter */
+ int ret; /* Bilan de lecture des args. */
+ GTypeMemory *tpmem; /* Mémorisation native */
+ bool status; /* Bilan de l'opération */
+
+#define TYPE_MEMORY_STORE_OBJECT_GTYPE_METHOD PYTHON_METHOD_DEF \
+( \
+ store_object_gtype, "$self, obj, pbuf", \
+ METH_VARARGS, py_type_memory, \
+ "Create a new GLib object from serialized data.\n" \
+ "\n" \
+ "The *obj* parameter is the Python version of the GObject" \
+ " whose type is to process and the *pbuf* parameter is a" \
+ " pychrysalide.common.PackedBuffer instance providing buffered" \
+ " data to extend." \
+ "\n" \
+ "The result is a boolean value indicating the status of the" \
+ " operation: True for success, False for failure." \
+)
+
+ ret = PyArg_ParseTuple(args, "O!O&", PyGObject_Type, &obj, convert_to_packed_buffer, &pbuf);
+ if (!ret) return NULL;
+
+ tpmem = G_TYPE_MEMORY(pygobject_get(self));
+
+ status = g_type_memory_store_object_gtype(tpmem, obj, pbuf);
+
+ result = status ? Py_True : Py_False;
+ Py_INCREF(result);
+
+ return result;
+
+}
+
+
+/******************************************************************************
+* *
+* Paramètres : self = classe représentant une mémorisation de types. *
+* args = arguments fournis à l'appel. *
+* *
+* Description : Enregistre tous les types mémorisés dans un tampon. *
+* *
+* Retour : Bilan de l'opération. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+static PyObject *py_type_memory_store_types(PyObject *self, PyObject *args)
+{
+ PyObject *result; /* Bilan à retourner */
+ packed_buffer_t *pbuf; /* Tampon à consulter */
+ int ret; /* Bilan de lecture des args. */
+ GTypeMemory *tpmem; /* Mémorisation native */
+ bool status; /* Bilan de l'opération */
+
+#define TYPE_MEMORY_STORE_TYPES_METHOD PYTHON_METHOD_DEF \
+( \
+ store_types, "$self, pbuf", \
+ METH_VARARGS, py_type_memory, \
+ "Write types into a buffer.\n" \
+ "\n" \
+ "This operation is usually handled internally by the" \
+ " Chrysalide's core.\n" \
+ "\n" \
+ "The *pbuf* parameter is a pychrysalide.common.PackedBuffer"\
+ " instance providing buffered data to read." \
+ "\n" \
+ "The result is a boolean value indicating the status of" \
+ " the operation: True for success, False for failure." \
+)
+
+ ret = PyArg_ParseTuple(args, "O&", convert_to_packed_buffer, &pbuf);
+ if (!ret) return NULL;
+
+ tpmem = G_TYPE_MEMORY(pygobject_get(self));
+
+ status = g_type_memory_store_types(tpmem, pbuf);
+
+ result = status ? Py_True : Py_False;
+ Py_INCREF(result);
+
+ return result;
+
+}
+
+
+/******************************************************************************
+* *
+* Paramètres : - *
+* *
+* Description : Fournit un accès à une définition de type à diffuser. *
+* *
+* Retour : Définition d'objet pour Python. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+PyTypeObject *get_python_type_memory_type(void)
+{
+ static PyMethodDef py_type_memory_methods[] = {
+ TYPE_MEMORY_LOAD_TYPES_METHOD,
+ TYPE_MEMORY_CREATE_OBJECT_METHOD,
+ TYPE_MEMORY_STORE_OBJECT_GTYPE_METHOD,
+ TYPE_MEMORY_STORE_TYPES_METHOD,
+ { NULL }
+ };
+
+ static PyGetSetDef py_type_memory_getseters[] = {
+ { NULL }
+ };
+
+ static PyTypeObject py_type_memory_type = {
+
+ PyVarObject_HEAD_INIT(NULL, 0)
+
+ .tp_name = "pychrysalide.analysis.storage.TypeMemory",
+ .tp_basicsize = sizeof(PyGObject),
+
+ .tp_flags = Py_TPFLAGS_DEFAULT,
+
+ .tp_doc = TYPE_MEMORY_DOC,
+
+ .tp_methods = py_type_memory_methods,
+ .tp_getset = py_type_memory_getseters,
+
+ .tp_init = py_type_memory_init,
+ .tp_new = py_type_memory_new
+
+ };
+
+ return &py_type_memory_type;
+
+}
+
+
+/******************************************************************************
+* *
+* Paramètres : module = module dont la définition est à compléter. *
+* *
+* Description : Prend en charge l'objet 'pychrysalide.analysis...TypeMemory'.*
+* *
+* Retour : Bilan de l'opération. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+bool ensure_python_type_memory_is_registered(void)
+{
+ PyTypeObject *type; /* Type Python 'BufferCache' */
+ PyObject *module; /* Module à recompléter */
+ PyObject *dict; /* Dictionnaire du module */
+
+ type = get_python_type_memory_type();
+
+ if (!PyType_HasFeature(type, Py_TPFLAGS_READY))
+ {
+ module = get_access_to_python_module("pychrysalide.analysis.storage");
+
+ dict = PyModule_GetDict(module);
+
+ if (!register_class_for_pygobject(dict, G_TYPE_TYPE_MEMORY, 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 mémorisation de types. *
+* *
+* Retour : Bilan de l'opération, voire indications supplémentaires. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+int convert_to_type_memory(PyObject *arg, void *dst)
+{
+ int result; /* Bilan à retourner */
+
+ result = PyObject_IsInstance(arg, (PyObject *)get_python_type_memory_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 buffer cache");
+ break;
+
+ case 1:
+ *((GTypeMemory **)dst) = G_TYPE_MEMORY(pygobject_get(arg));
+ break;
+
+ default:
+ assert(false);
+ break;
+
+ }
+
+ return result;
+
+}
generated by cgit v0.11.2-87-g4458 at 2025-03-18 22:37:05 (GMT)