diff options
| author | Cyrille Bagard <nocbos@gmail.com> | 2025-03-07 09:29:32 (GMT) | 
|---|---|---|
| committer | Cyrille Bagard <nocbos@gmail.com> | 2025-03-10 06:27:26 (GMT) | 
| commit | a59fb1b3fb67a348c40bc3668445d64213e9e674 (patch) | |
| tree | fcf493a6b1758c666b95a9c1c645beecc8e42a14 /plugins/pychrysalide/glibext | |
| parent | e0614e482b3ca3faf43e296bb70348be0d651394 (diff) | |
Prepare a new way to store objects.
Diffstat (limited to 'plugins/pychrysalide/glibext')
| -rw-r--r-- | plugins/pychrysalide/glibext/serialize.c | 501 | ||||
| -rw-r--r-- | plugins/pychrysalide/glibext/serialize.h | 45 | ||||
| -rw-r--r-- | plugins/pychrysalide/glibext/storage.c | 687 | ||||
| -rw-r--r-- | plugins/pychrysalide/glibext/storage.h | 48 | ||||
| -rw-r--r-- | plugins/pychrysalide/glibext/tpmem.c | 508 | ||||
| -rw-r--r-- | plugins/pychrysalide/glibext/tpmem.h | 45 | 
6 files changed, 1834 insertions, 0 deletions
| diff --git a/plugins/pychrysalide/glibext/serialize.c b/plugins/pychrysalide/glibext/serialize.c new file mode 100644 index 0000000..40fcef7 --- /dev/null +++ b/plugins/pychrysalide/glibext/serialize.c @@ -0,0 +1,501 @@ + +/* Chrysalide - Outil d'analyse de fichiers binaires + * serialize.c - équivalent Python du fichier "analysis/storage/serialize.h" + * + * 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 "serialize.h" + + +#include <pygobject.h> + + +#include <analysis/storage/serialize-int.h> + + +#include "storage.h" +#include "../../access.h" +#include "../../helpers.h" +#include "../../common/packed.h" + + + +/* ------------------------ GLUE POUR CREATION DEPUIS PYTHON ------------------------ */ + + +/* Procède à l'initialisation de l'interface de génération. */ +static void py_serializable_object_interface_init(GSerializableObjectIface *, gpointer *); + +/* Charge un objet depuis une mémoire tampon. */ +static bool py_serializable_object_load_wrapper(GSerializableObject *, GObjectStorage *, packed_buffer_t *); + +/* Sauvegarde un objet dans une mémoire tampon. */ +static bool py_serializable_object_store_wrapper(const GSerializableObject *, GObjectStorage *, packed_buffer_t *); + + + +/* ------------------------- CONNEXION AVEC L'API DE PYTHON ------------------------- */ + + +/* Charge un objet depuis une mémoire tampon. */ +static bool py_serializable_object_load(PyObject *, PyObject *); + +/* Sauvegarde un objet dans une mémoire tampon. */ +static bool py_serializable_object_store(PyObject *, PyObject *); + + + +/* ---------------------------------------------------------------------------------- */ +/*                          GLUE POUR CREATION DEPUIS PYTHON                          */ +/* ---------------------------------------------------------------------------------- */ + + +/****************************************************************************** +*                                                                             * +*  Paramètres  : iface  = interface GLib à initialiser.                       * +*                unused = adresse non utilisée ici.                           * +*                                                                             * +*  Description : Procède à l'initialisation de l'interface de génération.     * +*                                                                             * +*  Retour      : -                                                            * +*                                                                             * +*  Remarques   : -                                                            * +*                                                                             * +******************************************************************************/ + +static void py_serializable_object_interface_init(GSerializableObjectIface *iface, gpointer *unused) +{ + +#define SERIALIZABLE_OBJECT_DOC                                             \ +    "SerializableObject defines an interface used to store and load"        \ +    " objects to and from a data buffer.\n"                                 \ +    "\n"                                                                    \ +    "A typical class declaration for a new implementation looks like:\n"    \ +    "\n"                                                                    \ +    "    class NewImplem(GObject.Object, SerializableObject):\n"            \ +    "        ...\n"                                                         \ +    "\n"                                                                    \ +    "The following methods have to be defined for new implementations:\n"   \ +    "* pychrysalide.analysis.storage.SerializableObject._load();\n"         \ +    "* pychrysalide.analysis.storage.SerializableObject._store();\n" + +    iface->load = py_serializable_object_load_wrapper; +    iface->store = py_serializable_object_store_wrapper; + +} + + +/****************************************************************************** +*                                                                             * +*  Paramètres  : object  = instruction d'assemblage à consulter.              * +*                storage = conservateur de données à manipuler ou NULL.       * +*                pbuf    = zone tampon à remplir.                             * +*                                                                             * +*  Description : Charge un objet depuis une mémoire tampon.                   * +*                                                                             * +*  Retour      : Bilan de l'opération.                                        * +*                                                                             * +*  Remarques   : -                                                            * +*                                                                             * +******************************************************************************/ + +static bool py_serializable_object_load_wrapper(GSerializableObject *object, GObjectStorage *storage, packed_buffer_t *pbuf) +{ +    bool result;                            /* Bilan à retourner           */ +    PyGILState_STATE gstate;                /* Sauvegarde d'environnement  */ +    PyObject *storage_obj;                  /* Objet Python à emmployer    */ +    PyObject *args;                         /* Arguments pour l'appel      */ +    PyObject *pyobj;                        /* Objet Python concerné       */ +    PyObject *pyret;                        /* Bilan de consultation       */ + +#define SERIALIZABLE_OBJECT_LOAD_WRAPPER PYTHON_WRAPPER_DEF                     \ +(                                                                               \ +    _load, "$self, storage, pbuf, /",                                           \ +    METH_VARARGS,                                                               \ +    "Abstract method used to load an object definition from buffered data.\n"   \ +    "\n"                                                                        \ +    "The *storage* is a pychrysalide.analysis.storage.ObjectStorage instance"   \ +    " provided to store inner objects, if relevant, or None. The *pbuf*"        \ +    " argument points to a pychrysalide.common.PackedBuffer object containing"  \ +    " the data to process.\n"                                                   \ +    "\n"                                                                        \ +    "The result is a boolean indicating the status of the operation."           \ +) + +    result = false; + +    gstate = PyGILState_Ensure(); + +    pyobj = pygobject_new(G_OBJECT(object)); + +    if (has_python_method(pyobj, "_load")) +    { +        if (storage == NULL) +        { +            storage_obj = Py_None; +            Py_INCREF(storage_obj); +        } +        else +            storage_obj = pygobject_new(G_OBJECT(storage)); + +        args = PyTuple_New(2); +        PyTuple_SetItem(args, 0, storage_obj); +        PyTuple_SetItem(args, 1, build_from_internal_packed_buffer(pbuf)); + +        pyret = run_python_method(pyobj, "_load", args); + +        result = (pyret == Py_True ? true : false); + +        Py_XDECREF(pyret); + +        Py_DECREF(args); + +    } + +    Py_DECREF(pyobj); + +    PyGILState_Release(gstate); + +    return result; + +} + + +/****************************************************************************** +*                                                                             * +*  Paramètres  : object  = instruction d'assemblage à consulter.              * +*                storage = conservateur de données à manipuler ou NULL.       * +*                pbuf    = zone tampon à remplir.                             * +*                                                                             * +*  Description : Sauvegarde un objet dans une mémoire tampon.                 * +*                                                                             * +*  Retour      : Bilan de l'opération.                                        * +*                                                                             * +*  Remarques   : -                                                            * +*                                                                             * +******************************************************************************/ + +static bool py_serializable_object_store_wrapper(const GSerializableObject *object, GObjectStorage *storage, packed_buffer_t *pbuf) +{ +    bool result;                            /* Bilan à retourner           */ +    PyGILState_STATE gstate;                /* Sauvegarde d'environnement  */ +    PyObject *storage_obj;                  /* Objet Python à emmployer    */ +    PyObject *args;                         /* Arguments pour l'appel      */ +    PyObject *pyobj;                        /* Objet Python concerné       */ +    PyObject *pyret;                        /* Bilan de consultation       */ + +#define SERIALIZABLE_OBJECT_STORE_WRAPPER PYTHON_WRAPPER_DEF                    \ +(                                                                               \ +    _store, "$self, storage, pbuf, /",                                          \ +    METH_VARARGS,                                                               \ +    "Abstract method used to store an object definition into buffered data.\n"  \ +    "\n"                                                                        \ +    "The *storage* is a pychrysalide.analysis.storage.ObjectStorage instance"   \ +    " provided to store inner objects, if relevant, or None. The *pbuf*"        \ +    " argument points to a pychrysalide.common.PackedBuffer object containing"  \ +    " the data to process.\n"                                                   \ +    "\n"                                                                        \ +    "The result is a boolean indicating the status of the operation."           \ +) + +    result = false; + +    gstate = PyGILState_Ensure(); + +    pyobj = pygobject_new(G_OBJECT(object)); + +    if (has_python_method(pyobj, "_store")) +    { +        if (storage == NULL) +        { +            storage_obj = Py_None; +            Py_INCREF(storage_obj); +        } +        else +            storage_obj = pygobject_new(G_OBJECT(storage)); + +        args = PyTuple_New(2); +        PyTuple_SetItem(args, 0, storage_obj); +        PyTuple_SetItem(args, 1, build_from_internal_packed_buffer(pbuf)); + +        pyret = run_python_method(pyobj, "_store", args); + +        result = (pyret == Py_True ? true : false); + +        Py_XDECREF(pyret); + +        Py_DECREF(args); + +    } + +    Py_DECREF(pyobj); + +    PyGILState_Release(gstate); + +    return result; + +} + + + +/* ---------------------------------------------------------------------------------- */ +/*                           CONNEXION AVEC L'API DE PYTHON                           */ +/* ---------------------------------------------------------------------------------- */ + + +/****************************************************************************** +*                                                                             * +*  Paramètres  : self = classe représentant un générateur à manipuler.        * +*                args = arguments fournis à l'appel.                          * +*                                                                             * +*  Description : Charge un objet depuis une mémoire tampon.                   * +*                                                                             * +*  Retour      : Bilan de l'opération.                                        * +*                                                                             * +*  Remarques   : -                                                            * +*                                                                             * +******************************************************************************/ + +static bool py_serializable_object_load(PyObject *self, PyObject *args) +{ +    PyObject *result;                       /* Bilan à retourner           */ +    GObjectStorage *storage;                /* Conservateur à manipuler    */ +    packed_buffer_t *pbuf;                  /* Tampon de données à employer*/ +    int ret;                                /* Bilan de lecture des args.  */ +    GSerializableObject *object;            /* Version native              */ +    bool status;                            /* Bilan de l'opération        */ + +#define SERIALIZABLE_OBJECT_LOAD_METHOD PYTHON_METHOD_DEF                       \ +(                                                                               \ +    load, "$self, storage, pbuf, /",                                            \ +    METH_VARARGS, py_serializable_object,                                       \ +    "Load an object definition from buffered data.\n"                           \ +    "\n"                                                                        \ +    "The *storage* is a pychrysalide.analysis.storage.ObjectStorage instance"   \ +    " provided to store inner objects, if relevant, or None. The *pbuf*"        \ +    " argument points to a pychrysalide.common.PackedBuffer object containing"  \ +    " the data to process.\n"                                                   \ +    "\n"                                                                        \ +    "The result is a boolean indicating the status of the operation."           \ +) + +    ret = PyArg_ParseTuple(args, "O&O&", convert_to_object_storage_or_none, &storage, +                           convert_to_packed_buffer, &pbuf); +    if (!ret) return NULL; + +    object = G_SERIALIZABLE_OBJECT(pygobject_get(self)); + +    status = g_serializable_object_load(object, storage, pbuf); + +    result = status ? Py_True : Py_False; +    Py_INCREF(result); + +    return result; + +} + + +/****************************************************************************** +*                                                                             * +*  Paramètres  : self = classe représentant un générateur à manipuler.        * +*                args = arguments fournis à l'appel.                          * +*                                                                             * +*  Description : Sauvegarde un objet dans une mémoire tampon.                 * +*                                                                             * +*  Retour      : Bilan de l'opération.                                        * +*                                                                             * +*  Remarques   : -                                                            * +*                                                                             * +******************************************************************************/ + +static bool py_serializable_object_store(PyObject *self, PyObject *args) +{ +    PyObject *result;                       /* Bilan à retourner           */ +    GObjectStorage *storage;                /* Conservateur à manipuler    */ +    packed_buffer_t *pbuf;                  /* Tampon de données à employer*/ +    int ret;                                /* Bilan de lecture des args.  */ +    GSerializableObject *object;            /* Version native              */ +    bool status;                            /* Bilan de l'opération        */ + +#define SERIALIZABLE_OBJECT_STORE_METHOD PYTHON_METHOD_DEF                      \ +(                                                                               \ +    store, "$self, storage, pbuf, /",                                           \ +    METH_VARARGS, py_serializable_object,                                       \ +    "Store an object definition into buffered data.\n"                          \ +    "\n"                                                                        \ +    "The *storage* is a pychrysalide.analysis.storage.ObjectStorage instance"   \ +    " provided to store inner objects, if relevant, or None. The *pbuf*"        \ +    " argument points to a pychrysalide.common.PackedBuffer object containing"  \ +    " the data to process.\n"                                                   \ +    "\n"                                                                        \ +    "The result is a boolean indicating the status of the operation."           \ +) + +    ret = PyArg_ParseTuple(args, "O&O&", convert_to_object_storage_or_none, &storage, +                           convert_to_packed_buffer, &pbuf); +    if (!ret) return NULL; + +    object = G_SERIALIZABLE_OBJECT(pygobject_get(self)); + +    status = g_serializable_object_store(object, storage, 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_serializable_object_type(void) +{ +    static PyMethodDef py_serializable_object_methods[] = { +        SERIALIZABLE_OBJECT_LOAD_WRAPPER, +        SERIALIZABLE_OBJECT_STORE_WRAPPER, +        SERIALIZABLE_OBJECT_LOAD_METHOD, +        SERIALIZABLE_OBJECT_STORE_METHOD, +        { NULL } +    }; + +    static PyGetSetDef py_serializable_object_getseters[] = { +        { NULL } +    }; + +    static PyTypeObject py_serializable_object_type = { + +        PyVarObject_HEAD_INIT(NULL, 0) + +        .tp_name        = "pychrysalide.analysis.storage.SerializableObject", +        .tp_basicsize   = sizeof(PyObject), + +        .tp_flags       = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, + +        .tp_doc         = SERIALIZABLE_OBJECT_DOC, + +        .tp_methods     = py_serializable_object_methods, +        .tp_getset      = py_serializable_object_getseters, + +    }; + +    return &py_serializable_object_type; + +} + + +/****************************************************************************** +*                                                                             * +*  Paramètres  : module = module dont la définition est à compléter.          * +*                                                                             * +*  Description : Prend en charge l'objet 'pychrysalide....SerializableObject'.* +*                                                                             * +*  Retour      : Bilan de l'opération.                                        * +*                                                                             * +*  Remarques   : -                                                            * +*                                                                             * +******************************************************************************/ + +bool ensure_python_serializable_object_is_registered(void) +{ +    PyTypeObject *type;                     /* Type 'SerializableObject'   */ +    PyObject *module;                       /* Module à recompléter        */ +    PyObject *dict;                         /* Dictionnaire du module      */ + +    static GInterfaceInfo info = {          /* Paramètres d'inscription    */ + +        .interface_init = (GInterfaceInitFunc)py_serializable_object_interface_init, +        .interface_finalize = NULL, +        .interface_data = NULL, + +    }; + +    type = get_python_serializable_object_type(); + +    if (!PyType_HasFeature(type, Py_TPFLAGS_READY)) +    { +        module = get_access_to_python_module("pychrysalide.analysis.storage"); + +        dict = PyModule_GetDict(module); + +        if (!register_interface_for_pygobject(dict, G_TYPE_SERIALIZABLE_OBJECT, type, &info)) +            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 objet adapté à une mise en cache.      * +*                                                                             * +*  Retour      : Bilan de l'opération, voire indications supplémentaires.     * +*                                                                             * +*  Remarques   : -                                                            * +*                                                                             * +******************************************************************************/ + +int convert_to_serializable_object(PyObject *arg, void *dst) +{ +    int result;                             /* Bilan à retourner           */ + +    result = PyObject_IsInstance(arg, (PyObject *)get_python_serializable_object_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 serializable object"); +            break; + +        case 1: +            *((GSerializableObject **)dst) = G_SERIALIZABLE_OBJECT(pygobject_get(arg)); +            break; + +        default: +            assert(false); +            break; + +    } + +    return result; + +} diff --git a/plugins/pychrysalide/glibext/serialize.h b/plugins/pychrysalide/glibext/serialize.h new file mode 100644 index 0000000..7e831e5 --- /dev/null +++ b/plugins/pychrysalide/glibext/serialize.h @@ -0,0 +1,45 @@ + +/* Chrysalide - Outil d'analyse de fichiers binaires + * serialize.h - prototypes pour l'équivalent Python du fichier "analysis/storage/serialize.h" + * + * 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 + */ + + +#ifndef _PLUGINS_PYCHRYSALIDE_ANALYSIS_STORAGE_SERIALIZE_H +#define _PLUGINS_PYCHRYSALIDE_ANALYSIS_STORAGE_SERIALIZE_H + + +#include <Python.h> +#include <stdbool.h> + + + +/* Fournit un accès à une définition de type à diffuser. */ +PyTypeObject *get_python_serializable_object_type(void); + +/* Prend en charge l'objet 'pychrysalide.analysis.storage.SerializableObject'. */ +bool ensure_python_serializable_object_is_registered(void); + +/* Tente de convertir en objet adapté à une mise en cache. */ +int convert_to_serializable_object(PyObject *, void *); + + + +#endif  /* _PLUGINS_PYCHRYSALIDE_ANALYSIS_STORAGE_SERIALIZE_H */ diff --git a/plugins/pychrysalide/glibext/storage.c b/plugins/pychrysalide/glibext/storage.c new file mode 100644 index 0000000..c54fe0f --- /dev/null +++ b/plugins/pychrysalide/glibext/storage.c @@ -0,0 +1,687 @@ + +/* Chrysalide - Outil d'analyse de fichiers binaires + * storage.c - équivalent Python du fichier "analysis/storage/storage.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 "storage.h" + + +#include <pygobject.h> + + +#include <analysis/storage/storage-int.h> +#include <plugins/dt.h> + + +#include "serialize.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_object_storage_new(PyTypeObject *, PyObject *, PyObject *); + +/* Initialise une instance sur la base du dérivé de GObject. */ +static int py_object_storage_init(PyObject *, PyObject *, PyObject *); + + + +/* -------------------------- TAMPON POUR CODE DESASSEMBLE -------------------------- */ + + +/* Charge le support d'une conservation d'objets en place. */ +static PyObject *py_object_storage_load(PyObject *, PyObject *); + +/* Sauvegarde le support d'une conservation d'objets en place. */ +static PyObject *py_object_storage_store(PyObject *, PyObject *); + +/* Charge un objet à partir de données rassemblées. */ +static PyObject *py_object_storage_load_object(PyObject *, PyObject *); + +/* Charge un objet interne à partir de données rassemblées. */ +static PyObject *py_object_storage_unpack_object(PyObject *, PyObject *); + +/* Sauvegarde un object sous forme de données rassemblées. */ +static PyObject *py_object_storage_store_object(PyObject *, PyObject *); + +/* Sauvegarde un object interne sous forme de données. */ +static PyObject *py_object_storage_pack_object(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_object_storage_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_object_storage_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_OBJECT_STORAGE, 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_object_storage_init(PyObject *self, PyObject *args, PyObject *kwds) +{ +    const char *hash;                       /* Empreinte de contenu        */ +    int ret;                                /* Bilan de lecture des args.  */ +    GObjectStorage *storage;                /* Mécanismes natifs           */ + +#define OBJECT_STORAGE_DOC                                              \ +    "The ObjectStorage object manages the generic storage of GLib"      \ +    " objects through serialization.\n"                                 \ +    "\n"                                                                \ +    "Instances can be created using the following constructor:\n"       \ +    "\n"                                                                \ +    "    ObjectStorage(hash)"                                           \ +    "\n"                                                                \ +    "Where *hash* should a string built from the checksum of the"       \ +    " relative binary content linked to the storage.pychrysalide." + +    /* Récupération des paramètres */ + +    ret = PyArg_ParseTuple(args, "s", &hash); +    if (!ret) return -1; + +    /* Initialisation d'un objet GLib */ + +    ret = forward_pygobjet_init(self); +    if (ret == -1) return -1; + +    /* Eléments de base */ + +    storage = G_OBJECT_STORAGE(pygobject_get(self)); + +    storage->hash = strdup(hash); + +    return 0; + +} + + + +/* ---------------------------------------------------------------------------------- */ +/*                            TAMPON POUR CODE DESASSEMBLE                            */ +/* ---------------------------------------------------------------------------------- */ + + +/****************************************************************************** +*                                                                             * +*  Paramètres  : self = classe représentant une mémorisation de types.        * +*                args = arguments fournis à l'appel.                          * +*                                                                             * +*  Description : Charge le support d'une conservation d'objets en place.      * +*                                                                             * +*  Retour      : Gestionnaire de conservations construit ou None si erreur.   * +*                                                                             * +*  Remarques   : -                                                            * +*                                                                             * +******************************************************************************/ + +static PyObject *py_object_storage_load(PyObject *self, PyObject *args) +{ +    PyObject *result;                       /* Emplacement à retourner     */ +    packed_buffer_t *pbuf;                  /* Tampon de données à employer*/ +    int ret;                                /* Bilan de lecture des args.  */ +    GObjectStorage *storage;                /* Mécanismes natifs           */ + +#define OBJECT_STORAGE_LOAD_METHOD PYTHON_METHOD_DEF                    \ +(                                                                       \ +    load, "pbuf, /",                                                    \ +    METH_STATIC | METH_VARARGS, py_object_storage,                      \ +    "Construct a new storage from a buffer.\n"                          \ +    "\n"                                                                \ +    "The *pbuf* has to be an instance of type"                          \ +    " pychrysalide.common.PackedBuffer.\n"                              \ +    "\n"                                                                \ +    "The result is a new pychrysalide.analysis.storage.ObjectStorage"   \ +    " object on success, *None* otherwise."                             \ +) + +    ret = PyArg_ParseTuple(args, "O&", convert_to_packed_buffer, &pbuf); +    if (!ret) return NULL; + +    storage = g_object_storage_load(pbuf); + +    if (storage == NULL) +    { +        result = Py_None; +        Py_INCREF(result); +    } +    else +    { +        result = pygobject_new(G_OBJECT(storage)); +        g_object_unref(G_OBJECT(storage)); +    } + +    return result; + +} + + +/****************************************************************************** +*                                                                             * +*  Paramètres  : self = classe représentant une mémorisation de types.        * +*                args = arguments fournis à l'appel.                          * +*                                                                             * +*  Description : Sauvegarde le support d'une conservation d'objets en place.  * +*                                                                             * +*  Retour      : Bilan de l'opération.                                        * +*                                                                             * +*  Remarques   : -                                                            * +*                                                                             * +******************************************************************************/ + +static PyObject *py_object_storage_store(PyObject *self, PyObject *args) +{ +    PyObject *result;                       /* Emplacement à retourner     */ +    packed_buffer_t *pbuf;                  /* Tampon de données à employer*/ +    int ret;                                /* Bilan de lecture des args.  */ +    GObjectStorage *storage;                /* Mécanismes natifs           */ +    bool status;                            /* Bilan de l'opération        */ + +#define OBJECT_STORAGE_STORE_METHOD PYTHON_METHOD_DEF       \ +(                                                           \ +    store, "$self, pbuf, /",                                \ +    METH_VARARGS, py_object_storage,                        \ +    "Save a storage into a buffer.\n"                       \ +    "\n"                                                    \ +    "The *pbuf* has to be an instance of type"              \ +    " pychrysalide.common.PackedBuffer.\n"                  \ +    "\n"                                                    \ +    "The result is *True* on success, *False* otherwise."   \ +) + +    ret = PyArg_ParseTuple(args, "O&", convert_to_packed_buffer, &pbuf); +    if (!ret) return NULL; + +    storage = G_OBJECT_STORAGE(pygobject_get(self)); + +    status = g_object_storage_store(storage, 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 : Charge un objet à partir de données rassemblées.             * +*                                                                             * +*  Retour      : Objet restauré en mémoire ou None en cas d'échec.            * +*                                                                             * +*  Remarques   : -                                                            * +*                                                                             * +******************************************************************************/ + +static PyObject *py_object_storage_load_object(PyObject *self, PyObject *args) +{ +    PyObject *result;                       /* Bilan à retourner           */ +    const char *name;                       /* Désignation de groupe       */ +    unsigned long long pos;                 /* Emplacement des données     */ +    int ret;                                /* Bilan de lecture des args.  */ +    GObjectStorage *storage;                /* Mécanismes natifs           */ +    GSerializableObject *object;            /* Objet reconstruit ou NULL   */ + +#define OBJECT_STORAGE_LOAD_OBJECT_METHOD PYTHON_METHOD_DEF             \ +(                                                                       \ +    load_object, "$self, name, pos, /",                                 \ +    METH_VARARGS, py_object_storage,                                    \ +    "Load an object from serialized data.\n"                            \ +    "\n"                                                                \ +    "The *name* is a string label for the group of target objects and"  \ +    " *pos* is an offset into the data stream indicating the start of"  \ +    " the data to unserialize.\n"                                       \ +    "\n"                                                                \ +    "The result is a pychrysalide.analysis.storage.SerializableObject"  \ +    " instancet in case of success, or None in case of failure."        \ +) + +    ret = PyArg_ParseTuple(args, "sK", &name, &pos); +    if (!ret) return NULL; + +    storage = G_OBJECT_STORAGE(pygobject_get(self)); + +    object = g_object_storage_load_object(storage, name, pos); + +    if (object != NULL) +        result = pygobject_new(G_OBJECT(object)); +    else +    { +        result = Py_None; +        Py_INCREF(result); +    } + +    return result; + +} + + +/****************************************************************************** +*                                                                             * +*  Paramètres  : self = classe représentant une mémorisation de types.        * +*                args = arguments fournis à l'appel.                          * +*                                                                             * +*  Description : Charge un objet interne à partir de données rassemblées.     * +*                                                                             * +*  Retour      : Objet restauré en mémoire ou None en cas d'échec.            * +*                                                                             * +*  Remarques   : -                                                            * +*                                                                             * +******************************************************************************/ + +static PyObject *py_object_storage_unpack_object(PyObject *self, PyObject *args) +{ +    PyObject *result;                       /* Bilan à retourner           */ +    const char *name;                       /* Désignation de groupe       */ +    packed_buffer_t *pbuf;                  /* Tampon de données à employer*/ +    int ret;                                /* Bilan de lecture des args.  */ +    GObjectStorage *storage;                /* Mécanismes natifs           */ +    GSerializableObject *object;            /* Objet reconstruit ou NULL   */ + +#define OBJECT_STORAGE_UNPACK_OBJECT_METHOD PYTHON_METHOD_DEF           \ +(                                                                       \ +    unpack_object, "$self, name, pbuf, /",                              \ +    METH_VARARGS, py_object_storage,                                    \ +    "Load an object from a buffer with a location pointing to data.\n"  \ +    "\n"                                                                \ +    "The *name* is a string label for the group of target objects and"  \ +    " *pbuf* has to be a pychrysalide.common.PackedBuffer instance.\n"  \ +    "\n"                                                                \ +    "The result is a pychrysalide.analysis.storage.SerializableObject"  \ +    " instancet in case of success, or None in case of failure."        \ +) + +    ret = PyArg_ParseTuple(args, "sO&", &name, convert_to_packed_buffer, &pbuf); +    if (!ret) return NULL; + +    storage = G_OBJECT_STORAGE(pygobject_get(self)); + +    object = g_object_storage_unpack_object(storage, name, pbuf); + +    if (object != NULL) +        result = pygobject_new(G_OBJECT(object)); +    else +    { +        result = Py_None; +        Py_INCREF(result); +    } + +    return result; + +} + + +/****************************************************************************** +*                                                                             * +*  Paramètres  : self = classe représentant une mémorisation de types.        * +*                args = arguments fournis à l'appel.                          * +*                                                                             * +*  Description : Sauvegarde un object sous forme de données rassemblées.      * +*                                                                             * +*  Retour      : Bilan de l'opération.                                        * +*                                                                             * +*  Remarques   : -                                                            * +*                                                                             * +******************************************************************************/ + +static PyObject *py_object_storage_store_object(PyObject *self, PyObject *args) +{ +    PyObject *result;                       /* Emplacement à retourner     */ +    const char *name;                       /* Désignation de groupe       */ +    GSerializableObject *object;            /* Objet à traiter             */ +    int ret;                                /* Bilan de lecture des args.  */ +    GObjectStorage *storage;                /* Mécanismes natifs           */ +    off64_t pos;                            /* Emplacement d'enregistrement*/ +    bool status;                            /* Bilan de l'opération        */ + +#define OBJECT_STORAGE_STORE_OBJECT_METHOD PYTHON_METHOD_DEF        \ +(                                                                   \ +    store_object, "$self, name, object, /",                         \ +    METH_VARARGS, py_object_storage,                                \ +    "Save an object as serialized data.\n"                          \ +    "\n"                                                            \ +    "The *name* is a string label for the group of target objects"  \ +    " and the processed *object* has to be a"                       \ +    " pychrysalide.analysis.storage.SerializableObject instance.\n" \ +    "\n"                                                            \ +    "The result is the position of the data for stored object,"     \ +    " provided as an integer offset, in case of success or None"    \ +    " in case of failure."                                          \ +) + +    ret = PyArg_ParseTuple(args, "sO&", &name, convert_to_serializable_object, &object); +    if (!ret) return NULL; + +    storage = G_OBJECT_STORAGE(pygobject_get(self)); + +    status = g_object_storage_store_object(storage, name, object, &pos); + +    if (status) +        result = PyLong_FromUnsignedLongLong((unsigned long long)pos); +    else +    { +        result = Py_None; +        Py_INCREF(result); +    } + +    return result; + +} + + +/****************************************************************************** +*                                                                             * +*  Paramètres  : self = classe représentant une mémorisation de types.        * +*                args = arguments fournis à l'appel.                          * +*                                                                             * +*  Description : Sauvegarde un object interne sous forme de données.          * +*                                                                             * +*  Retour      : Bilan de l'opération.                                        * +*                                                                             * +*  Remarques   : -                                                            * +*                                                                             * +******************************************************************************/ + +static PyObject *py_object_storage_pack_object(PyObject *self, PyObject *args) +{ +    PyObject *result;                       /* Emplacement à retourner     */ +    const char *name;                       /* Désignation de groupe       */ +    GSerializableObject *object;            /* Objet à traiter             */ +    packed_buffer_t *pbuf;                  /* Tampon de données à employer*/ +    int ret;                                /* Bilan de lecture des args.  */ +    GObjectStorage *storage;                /* Mécanismes natifs           */ +    bool status;                            /* Bilan de l'opération        */ + +#define OBJECT_STORAGE_PACK_OBJECT_METHOD PYTHON_METHOD_DEF         \ +(                                                                   \ +    pack_object, "$self, name, object, pbuf/",                      \ +    METH_VARARGS, py_object_storage,                                \ +    "Save an object as serialized data and store the location of"   \ +    " the data intro a buffer.\n"                                   \ +    "\n"                                                            \ +    "The *name* is a string label for the group of target objects," \ +    " the processed *object* has to be a"                           \ +    " pychrysalide.analysis.storage.SerializableObject instance"    \ +    " and *pbuf* is expected to be a"                               \ +    " pychrysalide.common.PackedBuffer instance.\n"                 \ +    "\n"                                                            \ +    "The status of the operation is returned as a boolean value:"   \ +    " *True* for success, *False* for failure."                     \ +) + +    ret = PyArg_ParseTuple(args, "sO&O&", &name, convert_to_serializable_object, &object, +                           convert_to_packed_buffer, &pbuf); +    if (!ret) return NULL; + +    storage = G_OBJECT_STORAGE(pygobject_get(self)); + +    status = g_object_storage_pack_object(storage, name, object, 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_object_storage_type(void) +{ +    static PyMethodDef py_object_storage_methods[] = { +        OBJECT_STORAGE_LOAD_METHOD, +        OBJECT_STORAGE_STORE_METHOD, +        OBJECT_STORAGE_LOAD_OBJECT_METHOD, +        OBJECT_STORAGE_UNPACK_OBJECT_METHOD, +        OBJECT_STORAGE_STORE_OBJECT_METHOD, +        OBJECT_STORAGE_PACK_OBJECT_METHOD, +        { NULL } +    }; + +    static PyGetSetDef py_object_storage_getseters[] = { +        { NULL } +    }; + +    static PyTypeObject py_object_storage_type = { + +        PyVarObject_HEAD_INIT(NULL, 0) + +        .tp_name        = "pychrysalide.analysis.storage.ObjectStorage", +        .tp_basicsize   = sizeof(PyGObject), + +        .tp_flags       = Py_TPFLAGS_DEFAULT, + +        .tp_doc         = OBJECT_STORAGE_DOC, + +        .tp_methods     = py_object_storage_methods, +        .tp_getset      = py_object_storage_getseters, + +        .tp_init        = py_object_storage_init, +        .tp_new         = py_object_storage_new + +    }; + +    return &py_object_storage_type; + +} + + +/****************************************************************************** +*                                                                             * +*  Paramètres  : module = module dont la définition est à compléter.          * +*                                                                             * +*  Description : Prend en charge l'objet 'pychrysalide....ObjectStorage'.     * +*                                                                             * +*  Retour      : Bilan de l'opération.                                        * +*                                                                             * +*  Remarques   : -                                                            * +*                                                                             * +******************************************************************************/ + +bool ensure_python_object_storage_is_registered(void) +{ +    PyTypeObject *type;                     /* Type Python 'ObjectStorage' */ +    PyObject *module;                       /* Module à recompléter        */ +    PyObject *dict;                         /* Dictionnaire du module      */ + +    type = get_python_object_storage_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_OBJECT_STORAGE, 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 conservateur d'objets.                 * +*                                                                             * +*  Retour      : Bilan de l'opération, voire indications supplémentaires.     * +*                                                                             * +*  Remarques   : -                                                            * +*                                                                             * +******************************************************************************/ + +int convert_to_object_storage(PyObject *arg, void *dst) +{ +    int result;                             /* Bilan à retourner           */ + +    result = PyObject_IsInstance(arg, (PyObject *)get_python_object_storage_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 object storage"); +            break; + +        case 1: +            *((GObjectStorage **)dst) = G_OBJECT_STORAGE(pygobject_get(arg)); +            break; + +        default: +            assert(false); +            break; + +    } + +    return result; + +} + + +/****************************************************************************** +*                                                                             * +*  Paramètres  : arg = argument quelconque à tenter de convertir.             * +*                dst = destination des valeurs récupérées en cas de succès.   * +*                                                                             * +*  Description : Tente de convertir en conservateur d'objets ou NULL.         * +*                                                                             * +*  Retour      : Bilan de l'opération, voire indications supplémentaires.     * +*                                                                             * +*  Remarques   : -                                                            * +*                                                                             * +******************************************************************************/ + +int convert_to_object_storage_or_none(PyObject *arg, void *dst) +{ +    int result;                             /* Bilan à retourner           */ + +    if (arg == Py_None) +    { +        *((GTypeMemory **)dst) = NULL; +        result = 1; +    } + +    else +        result = convert_to_object_storage(arg, dst); + +    return result; + +} diff --git a/plugins/pychrysalide/glibext/storage.h b/plugins/pychrysalide/glibext/storage.h new file mode 100644 index 0000000..a0a2c18 --- /dev/null +++ b/plugins/pychrysalide/glibext/storage.h @@ -0,0 +1,48 @@ + +/* Chrysalide - Outil d'analyse de fichiers binaires + * storage.h - prototypes pour l'équivalent Python du fichier "analysis/storage/storage.h" + * + * 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 + */ + + +#ifndef _PLUGINS_PYCHRYSALIDE_ANALYSIS_STORAGE_STORAGE_H +#define _PLUGINS_PYCHRYSALIDE_ANALYSIS_STORAGE_STORAGE_H + + +#include <Python.h> +#include <stdbool.h> + + + +/* Fournit un accès à une définition de type à diffuser. */ +PyTypeObject *get_python_object_storage_type(void); + +/* Prend en charge l'objet 'pychrysalide.analysis.storage.ObjectStorage'. */ +bool ensure_python_object_storage_is_registered(void); + +/* Tente de convertir en conservateur d'objets. */ +int convert_to_object_storage(PyObject *, void *); + +/* Tente de convertir en conservateur d'objets ou NULL. */ +int convert_to_object_storage_or_none(PyObject *, void *); + + + +#endif  /* _PLUGINS_PYCHRYSALIDE_ANALYSIS_STORAGE_STORAGE_H */ 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; + +} diff --git a/plugins/pychrysalide/glibext/tpmem.h b/plugins/pychrysalide/glibext/tpmem.h new file mode 100644 index 0000000..1085632 --- /dev/null +++ b/plugins/pychrysalide/glibext/tpmem.h @@ -0,0 +1,45 @@ + +/* Chrysalide - Outil d'analyse de fichiers binaires + * tpmem.h - prototypes pour l'équivalent Python du fichier "analysis/storage/tpmem.h" + * + * 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 + */ + + +#ifndef _PLUGINS_PYCHRYSALIDE_ANALYSIS_STORAGE_TPMEM_H +#define _PLUGINS_PYCHRYSALIDE_ANALYSIS_STORAGE_TPMEM_H + + +#include <Python.h> +#include <stdbool.h> + + + +/* Fournit un accès à une définition de type à diffuser. */ +PyTypeObject *get_python_type_memory_type(void); + +/* Prend en charge l'objet 'pychrysalide.analysis.storage.TypeMemory'. */ +bool ensure_python_type_memory_is_registered(void); + +/* Tente de convertir en mémorisation de types. */ +int convert_to_type_memory(PyObject *, void *); + + + +#endif  /* _PLUGINS_PYCHRYSALIDE_ANALYSIS_STORAGE_TPMEM_H */ | 
