diff options
Diffstat (limited to 'plugins/pychrysa/arch')
-rw-r--r-- | plugins/pychrysa/arch/Makefile.am | 1 | ||||
-rw-r--r-- | plugins/pychrysa/arch/instriter.c | 265 | ||||
-rw-r--r-- | plugins/pychrysa/arch/instriter.h | 42 | ||||
-rw-r--r-- | plugins/pychrysa/arch/module.c | 2 | ||||
-rw-r--r-- | plugins/pychrysa/arch/processor.c | 44 |
5 files changed, 322 insertions, 32 deletions
diff --git a/plugins/pychrysa/arch/Makefile.am b/plugins/pychrysa/arch/Makefile.am index 7607ed8..5d631bb 100644 --- a/plugins/pychrysa/arch/Makefile.am +++ b/plugins/pychrysa/arch/Makefile.am @@ -2,6 +2,7 @@ noinst_LTLIBRARIES = libpychrysaarch.la libpychrysaarch_la_SOURCES = \ + instriter.h instriter.c \ instruction.h instruction.c \ module.h module.c \ processor.h processor.c \ diff --git a/plugins/pychrysa/arch/instriter.c b/plugins/pychrysa/arch/instriter.c new file mode 100644 index 0000000..1e5346e --- /dev/null +++ b/plugins/pychrysa/arch/instriter.c @@ -0,0 +1,265 @@ + +/* Chrysalide - Outil d'analyse de fichiers binaires + * instriter.c - équivalent Python du fichier "arch/instriter.c" + * + * Copyright (C) 2016 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 "instriter.h" + + +#include <pygobject.h> + + +#include <arch/instriter.h> +#include <arch/processor.h> + + +#include "processor.h" + + + +/* Transcription d'un itérateur en Python */ +typedef struct _PyInstrIterator +{ + PyObject_HEAD; /* A laisser en premier */ + + instr_iter_t *native; /* Version native de l'objet */ + +} PyInstrIterator; + + +/* Libère de la mémoire un itérateur sur des instructions. */ +static void py_instr_iterator_dealloc(PyInstrIterator *); + +/* Fournit l'instruction qui en suit une autre. */ +static PyObject *py_instr_iterator_next(PyInstrIterator *); + +/* Initialise un nouvel itérateur. */ +static int py_instr_iterator_init(PyInstrIterator *, PyObject *, PyObject *); + +/* Construit un nouvel itérateur. */ +static PyObject *py_instr_iterator_new(PyTypeObject *, PyObject *, PyObject *); + + + +/****************************************************************************** +* * +* Paramètres : self = itérateur à supprimer. * +* * +* Description : Libère de la mémoire un itérateur sur des instructions. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void py_instr_iterator_dealloc(PyInstrIterator *self) +{ + delete_instruction_iterator(self->native); + + Py_TYPE(self)->tp_free((PyObject *)self); + +} + + +/****************************************************************************** +* * +* Paramètres : self = itérateur à manipuler. * +* * +* Description : Fournit l'instruction qui en suit une autre. * +* * +* Retour : Instruction suivante trouvée, ou NULL. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static PyObject *py_instr_iterator_next(PyInstrIterator *self) +{ + PyObject *result; /* Résultat à retourner */ + GArchInstruction *next; /* Instruction suivante */ + + next = get_instruction_iterator_next(self->native); + + if (next != NULL) + result = pygobject_new(G_OBJECT(next)); + + else + { + PyErr_SetNone(PyExc_StopIteration); + result = NULL; + } + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : self = instance d'objet à initialiser. * +* args = arguments passés pour l'appel. * +* kwds = mots clefs éventuellement fournis en complément. * +* * +* Description : Initialise un nouvel itérateur. * +* * +* Retour : Bilan de l'opération. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static int py_instr_iterator_init(PyInstrIterator *self, PyObject *args, PyObject *kwds) +{ + int result; /* Bilan à retourner */ + PyObject *proc_obj; /* Processeur version Python */ + unsigned long index; /* Indice de première instruc. */ + int ret; /* Bilan de lecture des args. */ + GArchProcessor *proc; /* Version native du processeur*/ + + result = -1; + + ret = PyArg_ParseTuple(args, "Ok", &proc_obj, &index); + if (ret == 0) goto piii_exit; + + ret = PyObject_IsInstance(proc_obj, (PyObject *)get_python_arch_processor_type()); + if (!ret) goto piii_exit; + + proc = G_ARCH_PROCESSOR(pygobject_get(proc_obj)); + + self->native = create_instruction_iterator(proc, index); + + result = 0; + + piii_exit: + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : type = type d'objet à mettre en place. * +* args = arguments passés pour l'appel. * +* kwds = mots clefs éventuellement fournis en complément. * +* * +* Description : Construit un nouvel itérateur. * +* * +* Retour : Définition d'objet pour Python. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static PyObject *py_instr_iterator_new(PyTypeObject *type, PyObject *args, PyObject *kwds) +{ + PyInstrIterator *result; /* Nouvelle instance à renvoyer*/ + int ret; /* Bilan de l'initialisation */ + + result = (PyInstrIterator *)type->tp_alloc(type, 0); + + if (result != NULL) + { + ret = py_instr_iterator_init(result, args, kwds); + + if (ret != 0) + { + Py_DECREF(result); + result = NULL; + } + + } + + return (PyObject *)result; + +} + + +/****************************************************************************** +* * +* Paramètres : - * +* * +* Description : Fournit un accès à une définition de type à diffuser. * +* * +* Retour : Définition d'objet pour Python. * +* * +* Remarques : - * +* * +******************************************************************************/ + +PyTypeObject *get_python_instr_iterator_type(void) +{ + static PyTypeObject py_instr_iterator_type = { + + PyVarObject_HEAD_INIT(NULL, 0) + + .tp_name = "pychrysalide.arch.InstrIterator", + .tp_basicsize = sizeof(PyInstrIterator), + + .tp_dealloc = (destructor)py_instr_iterator_dealloc, + + .tp_flags = Py_TPFLAGS_DEFAULT, + + .tp_doc = "Iterator for Chrysalide instructions loaded in a given processor.", + + .tp_iter = PyObject_SelfIter, + .tp_iternext = (iternextfunc)py_instr_iterator_next, + + .tp_init = (initproc)py_instr_iterator_init, + .tp_new = py_instr_iterator_new, + + }; + + return &py_instr_iterator_type; + +} + + +/****************************************************************************** +* * +* Paramètres : module = module dont la définition est à compléter. * +* * +* Description : Prend en charge l'objet 'pychrysalide.arch.InstrIterator'. * +* * +* Retour : Bilan de l'opération. * +* * +* Remarques : - * +* * +******************************************************************************/ + +bool register_python_instr_iterator(PyObject *module) +{ + PyTypeObject *py_instr_iterator_type; /* Type Python 'BinContent' */ + int ret; /* Bilan d'un appel */ + + py_instr_iterator_type = get_python_instr_iterator_type(); + + if (PyType_Ready(py_instr_iterator_type) < 0) + return false; + + Py_INCREF(py_instr_iterator_type); + ret = PyModule_AddObject(module, "InstrIterator", (PyObject *)py_instr_iterator_type); + + return (ret == 0); + +} diff --git a/plugins/pychrysa/arch/instriter.h b/plugins/pychrysa/arch/instriter.h new file mode 100644 index 0000000..be84dbc --- /dev/null +++ b/plugins/pychrysa/arch/instriter.h @@ -0,0 +1,42 @@ + +/* Chrysalide - Outil d'analyse de fichiers binaires + * instriter.h - prototypes pour l'équivalent Python du fichier "arch/instriter.h" + * + * Copyright (C) 2016 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_ARCH_INSTRITER_H +#define _PLUGINS_PYCHRYSALIDE_ARCH_INSTRITER_H + + +#include <Python.h> +#include <stdbool.h> + + + +/* Fournit un accès à une définition de type à diffuser. */ +PyTypeObject *get_python_instr_iterator_type(void); + +/* Prend en charge l'objet 'pychrysalide.arch.InstrIterator'. */ +bool register_python_instr_iterator(PyObject *); + + + +#endif /* _PLUGINS_PYCHRYSALIDE_ARCH_INSTRITER_H */ diff --git a/plugins/pychrysa/arch/module.c b/plugins/pychrysa/arch/module.c index 73f8770..ce5db70 100644 --- a/plugins/pychrysa/arch/module.c +++ b/plugins/pychrysa/arch/module.c @@ -28,6 +28,7 @@ #include <assert.h> +#include "instriter.h" #include "instruction.h" #include "processor.h" #include "vmpa.h" @@ -83,6 +84,7 @@ bool add_arch_module_to_python_module(PyObject *super) result &= register_python_arch_instruction(module); result &= register_python_arch_processor(module); + result &= register_python_instr_iterator(module); result &= register_python_vmpa(module); result &= register_python_mrange(module); diff --git a/plugins/pychrysa/arch/processor.c b/plugins/pychrysa/arch/processor.c index 291d788..3ef56e4 100644 --- a/plugins/pychrysa/arch/processor.c +++ b/plugins/pychrysa/arch/processor.c @@ -34,6 +34,7 @@ #include <arch/processor.h> +#include "instriter.h" #include "instruction.h" #include "vmpa.h" #include "../helpers.h" @@ -62,7 +63,7 @@ /* Fournit les instructions désassemblées pour une architecture. */ -static PyObject *py_arch_processor_get_disass_instrs(PyObject *, void *); +static PyObject *py_arch_processor_get_instrs(PyObject *, void *); /* Recherche une instruction d'après son adresse. */ static PyObject *py_arch_processor_find_instr_by_addr(PyObject *, PyObject *); @@ -75,8 +76,6 @@ static PyObject *py_arch_processor_get_next_instr(PyObject *, PyObject *); - - /* ---------------------------------------------------------------------------------- */ /* MANIPULATIONS DES INSTRUCTIONS DESASSEMBLEES */ /* ---------------------------------------------------------------------------------- */ @@ -95,22 +94,19 @@ static PyObject *py_arch_processor_get_next_instr(PyObject *, PyObject *); * * ******************************************************************************/ -static PyObject *py_arch_processor_get_disass_instrs(PyObject *self, void *closure) +static PyObject *py_arch_processor_get_instrs(PyObject *self, void *closure) { PyObject *result; /* Instance Python à retourner */ - GArchProcessor *proc; /* Architecture visée */ - GArchInstruction *instrs; /* Série d'instructions liées */ + PyTypeObject *iterator_type; /* Type Python de l'itérateur */ + PyObject *args; /* Liste des arguments d'appel */ - proc = G_ARCH_PROCESSOR(pygobject_get(self)); - instrs = g_arch_processor_get_disassembled_instructions(proc); + iterator_type = get_python_instr_iterator_type(); - if (instrs != NULL) - result = pygobject_new(G_OBJECT(instrs)); - else - { - result = Py_None; - Py_INCREF(result); - } + args = Py_BuildValue("On", self, 0); + + result = PyObject_CallObject((PyObject *)iterator_type, args); + + Py_DECREF(args); return result; @@ -293,22 +289,6 @@ static PyObject *py_arch_processor_get_next_instr(PyObject *self, PyObject *args } - - - - - - - - - - - - - - - - /****************************************************************************** * * * Paramètres : - * @@ -344,7 +324,7 @@ PyTypeObject *get_python_arch_processor_type(void) static PyGetSetDef py_arch_processor_getseters[] = { { - "disass_instrs", py_arch_processor_get_disass_instrs, py_arch_processor_set_disass_instrs, + "instrs", py_arch_processor_get_instrs, py_arch_processor_set_disass_instrs, "Give access to the disassembled instructions run by the current processor.", NULL }, { NULL } |