Provided a way to register new available processors from Python.

7 files changed, 293 insertions, 3 deletions

diff --git a/plugins/pychrysalide/core/Makefile.am b/plugins/pychrysalide/core/Makefile.am
index 4018012..131e1b9 100644
--- a/plugins/pychrysalide/core/Makefile.am
+++ b/plugins/pychrysalide/core/Makefile.am
@@ -7,6 +7,7 @@ libpychrysacore_la_SOURCES =			\
 	logs.h logs.c						\
 	module.h module.c					\
 	params.h params.c					\
+	processors.h processors.c			\
 	queue.h queue.c
 
 libpychrysacore_la_LDFLAGS = 
diff --git a/plugins/pychrysalide/core/logs.c b/plugins/pychrysalide/core/logs.c
index be1f57a..afab7ab 100644
--- a/plugins/pychrysalide/core/logs.c
+++ b/plugins/pychrysalide/core/logs.c
@@ -1,6 +1,6 @@
 
 /* Chrysalide - Outil d'analyse de fichiers binaires
- * logs.c - équivalent Python du fichier "gui/panels/logs.c"
+ * logs.c - équivalent Python du fichier "core/logs.c"
  *
  * Copyright (C) 2017 Cyrille Bagard
  *
diff --git a/plugins/pychrysalide/core/module.c b/plugins/pychrysalide/core/module.c
index 3d117a5..d954821 100644
--- a/plugins/pychrysalide/core/module.c
+++ b/plugins/pychrysalide/core/module.c
@@ -32,6 +32,7 @@
 #include "global.h"
 #include "logs.h"
 #include "params.h"
+#include "processors.h"
 #include "queue.h"
 #include "../helpers.h"
 
@@ -96,6 +97,7 @@ bool populate_core_module(void)
     if (result) result = populate_core_module_with_global();
     if (result) result = populate_core_module_with_logs();
     if (result) result = populate_core_module_with_params();
+    if (result) result = populate_core_module_with_processors();
     if (result) result = populate_core_module_with_queue();
 
     assert(result);
diff --git a/plugins/pychrysalide/core/processors.c b/plugins/pychrysalide/core/processors.c
new file mode 100644
index 0000000..341c816
--- /dev/null
+++ b/plugins/pychrysalide/core/processors.c
@@ -0,0 +1,248 @@
+
+/* Chrysalide - Outil d'analyse de fichiers binaires
+ * processors.c - équivalent Python du fichier "core/processors.c"
+ *
+ * Copyright (C) 2018 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 "processors.h"
+
+
+#include <pygobject.h>
+
+
+#include <i18n.h>
+#include <arch/processor.h>
+#include <core/processors.h>
+
+
+#include "../access.h"
+#include "../helpers.h"
+#include "../pychrysa.h"
+#include "../arch/processor.h"
+
+
+
+/* Enregistre un processeur pour une architecture donnée. */
+static PyObject *py_processors_register_type(PyObject *, PyObject *);
+
+/* Fournit le nom humain de l'architecture visée. */
+static PyObject *py_processors_get_description(PyObject *, PyObject *);
+
+/* Fournit le processeur d'architecture correspondant à un nom. */
+static PyObject *py_processors_get_for_name(PyObject *, PyObject *);
+
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : self = objet Python concerné par l'appel.                    *
+*                args = arguments fournis à l'appel.                          *
+*                                                                             *
+*  Description : Enregistre un processeur pour une architecture donnée.       *
+*                                                                             *
+*  Retour      : Bilan de l'opération.                                        *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+static PyObject *py_processors_register_type(PyObject *self, PyObject *args)
+{
+    PyObject *result;                       /* Bilan à retourner           */
+    const char *name;                       /* Nom technique de processeur */
+    const char *desc;                       /* description humaine liée    */
+    PyObject *type;                         /* Type d'une instance future  */
+    int ret;                                /* Bilan de lecture des args.  */
+    PyObject *new_args;                     /* Nouveaux arguments épurés   */
+    PyObject *new_kwds;                     /* Nouveau dictionnaire épuré  */
+    PyObject *dummy;                        /* Coquille vide pour analyse  */
+    GType instance;                         /* Type pour futures instances */
+    bool status;                            /* Bilan d'un enregistrement   */
+
+    ret = PyArg_ParseTuple(args, "ssO!", &name, &desc, &PyType_Type, &type);
+    if (!ret) return NULL;
+
+    ret = PyObject_IsSubclass(type, (PyObject *)get_python_arch_processor_type());;
+    if (ret == -1) return NULL;
+
+    if (ret != 1)
+    {
+        PyErr_SetString(PyExc_TypeError, _("The new processor should be a subclass of the ArchProcessor type."));
+        return NULL;
+    }
+
+    /**
+     * Comme le type GLib n'est initié et enregistré qu'à la création d'une première instance,
+     * on force sa mise en place ici, afin de ne pas contraidre l'utilisateur à le faire
+     * lui même via un appel du style :
+     *
+     *    register_processor('aaa', 'BBB CCC', type(AaaProcessor()))
+     */
+
+    new_args = PyTuple_New(0);
+    new_kwds = PyDict_New();
+
+    dummy = PyObject_Call(type, new_args, new_kwds);
+
+    Py_DECREF(new_kwds);
+    Py_DECREF(new_args);
+
+    if (dummy == NULL) return NULL;
+
+    instance = pyg_type_from_object_strict((PyObject *)Py_TYPE(dummy), TRUE);
+    assert(instance != 0 && instance != G_TYPE_ARCH_PROCESSOR);
+
+    Py_DECREF(dummy);
+
+    status = register_processor_type(name, desc, instance);
+
+    result = status ? Py_True : Py_False;
+    Py_INCREF(result);
+
+    return result;
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : self = objet Python concerné par l'appel.                    *
+*                args = arguments fournis à l'appel.                          *
+*                                                                             *
+*  Description : Fournit le nom humain de l'architecture visée.               *
+*                                                                             *
+*  Retour      : Désignation humaine trouvée ou NULL.                         *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+static PyObject *py_processors_get_description(PyObject *self, PyObject *args)
+{
+    PyObject *result;                       /* Bilan à retourner           */
+    const char *name;                       /* Nom technique de processeur */
+    int ret;                                /* Bilan de lecture des args.  */
+    const char *desc;                       /* Description humaine obtenue */
+
+    ret = PyArg_ParseTuple(args, "s", &name);
+    if (!ret) return NULL;
+
+    desc = get_arch_processor_description(name);
+
+    if (desc != NULL)
+        result = PyUnicode_FromString(desc);
+
+    else
+    {
+        result = Py_None;
+        Py_INCREF(result);
+    }
+
+    return result;
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : self = objet Python concerné par l'appel.                    *
+*                args = arguments fournis à l'appel.                          *
+*                                                                             *
+*  Description : Fournit le processeur d'architecture correspondant à un nom. *
+*                                                                             *
+*  Retour      : Processeur d'architecture trouvé.                            *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+static PyObject *py_processors_get_for_name(PyObject *self, PyObject *args)
+{
+    PyObject *result;                       /* Bilan à retourner           */
+    const char *name;                       /* Nom technique de processeur */
+    int ret;                                /* Bilan de lecture des args.  */
+    GArchProcessor *proc;                   /* Instance mise en place      */
+
+    ret = PyArg_ParseTuple(args, "s", &name);
+    if (!ret) return NULL;
+
+    proc = get_arch_processor_for_name(name);
+
+    if (proc != NULL)
+    {
+        result = pygobject_new(G_OBJECT(proc));
+        g_object_unref(G_OBJECT(proc));
+    }
+    else
+    {
+        result = Py_None;
+        Py_INCREF(result);
+    }
+
+    return result;
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : -                                                            *
+*                                                                             *
+*  Description : Définit une extension du module 'core' à compléter.          *
+*                                                                             *
+*  Retour      : Bilan de l'opération.                                        *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+bool populate_core_module_with_processors(void)
+{
+    bool result;                            /* Bilan à retourner           */
+    PyObject *module;                       /* Module à recompléter        */
+
+    static PyMethodDef py_processors_methods[] = {
+        {
+            "register_processor", py_processors_register_type,
+            METH_VARARGS,
+            "register_type(name, desc, cls, /)\n--\n\nRegister an an architecture processor by its name, description and class type."
+        },
+        {
+            "get_processor_description", py_processors_get_description,
+            METH_VARARGS,
+            "get_processor_description(name, /)\n--\n\nProvide the description of a given architecture processor."
+        },
+        {
+            "get_processor_for_name", py_processors_get_for_name,
+            METH_VARARGS,
+            "get_processor_for_name(name, /)\n--\n\nProvide an instance of an architecture processor for a given name."
+        },
+        { NULL }
+
+    };
+
+    module = get_access_to_python_module("pychrysalide.core");
+
+    result = register_python_module_methods(module, py_processors_methods);
+
+    return result;
+
+}
diff --git a/plugins/pychrysalide/core/processors.h b/plugins/pychrysalide/core/processors.h
new file mode 100644
index 0000000..956c9e5
--- /dev/null
+++ b/plugins/pychrysalide/core/processors.h
@@ -0,0 +1,39 @@
+
+/* Chrysalide - Outil d'analyse de fichiers binaires
+ * processors.h - prototypes pour l'équivalent Python du fichier "core/processors.h"
+ *
+ * Copyright (C) 2018 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_PYCHRYSALIDE_CORE_PROCESSORS_H
+#define _PLUGINS_PYCHRYSALIDE_CORE_PROCESSORS_H
+
+
+#include <Python.h>
+#include <stdbool.h>
+
+
+
+/* Définit une extension du module 'core' à compléter. */
+bool populate_core_module_with_processors(void);
+
+
+
+#endif  /* _PLUGINS_PYCHRYSALIDE_CORE_PROCESSORS_H */
diff --git a/plugins/pychrysalide/format/executable.c b/plugins/pychrysalide/format/executable.c
index cc0dd33..906fae5 100644
--- a/plugins/pychrysalide/format/executable.c
+++ b/plugins/pychrysalide/format/executable.c
@@ -320,7 +320,7 @@ int convert_to_vmpa_using_executable(PyObject *obj, exe_cv_info_t *info)
     {
         arch = g_exe_format_get_target_machine(info->format);
 
-        conv.proc = get_arch_processor_for_type(arch);
+        conv.proc = get_arch_processor_for_name(arch);
 
         if (conv.proc != NULL)
         {
diff --git a/plugins/ropgadgets/finder.c b/plugins/ropgadgets/finder.c
index 3e7ed1a..b9a4500 100644
--- a/plugins/ropgadgets/finder.c
+++ b/plugins/ropgadgets/finder.c
@@ -387,7 +387,7 @@ found_rop_list *list_all_gadgets(GExeFormat *format, unsigned int max_depth, upd
     domain.content = g_binary_format_get_content(G_BIN_FORMAT(format));
 
     target = g_exe_format_get_target_machine(format);
-    domain.proc = get_arch_processor_for_type(target);
+    domain.proc = get_arch_processor_for_name(target);
 
     bool collect_x_ranges(GBinPortion *portion, GBinPortion *parent, BinaryPortionVisit visit, void *unused)
     {