/* Chrysalide - Outil d'analyse de fichiers binaires * content.c - prototypes pour l'équivalent Python du fichier "analysis/content.c" * * Copyright (C) 2015 Cyrille Bagard * * This file is part of Chrysalide. * * OpenIDA 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. * * OpenIDA 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 "content.h" #include #include /* Fournit une empreinte unique (SHA256) pour les données. */ static PyObject *py_binary_content_get_checksum(PyObject *, PyObject *); /* Détermine le nombre d'octets lisibles. */ static PyObject *py_binary_content_compute_size(PyObject *, PyObject *); /* Lit un nombre non signé sur un octet. */ static PyObject *py_binary_content_read_u8(PyObject *, PyObject *); /****************************************************************************** * * * Paramètres : self = contenu binaire à manipuler. * * args = non utilisé ici. * * * * Description : Fournit une empreinte unique (SHA256) pour les données. * * * * Retour : Bilan de l'opération. * * * * Remarques : - * * * ******************************************************************************/ static PyObject *py_binary_content_get_checksum(PyObject *self, PyObject *args) { PyObject *result; /* Instance à retourner */ GBinContent *content; /* Version GLib du format */ const gchar *checksum; /* Empreinte fournie */ content = G_BIN_CONTENT(pygobject_get(self)); //checksum = g_binary_content_get_cheksum(content); printf("YEAH\n"); fflush(NULL); result = PyUnicode_FromString("checksum"); return result; } /****************************************************************************** * * * Paramètres : self = contenu binaire à manipuler. * * args = non utilisé ici. * * * * Description : Détermine le nombre d'octets lisibles. * * * * Retour : Quantité représentée. * * * * Remarques : - * * * ******************************************************************************/ static PyObject *py_binary_content_compute_size(PyObject *self, PyObject *args) { PyObject *result; /* Instance à retourner */ GBinContent *content; /* Version GLib du format */ phys_t size; /* Quantité d'octets dispos. */ content = G_BIN_CONTENT(pygobject_get(self)); size = g_binary_content_compute_size(content); result = PyLong_FromUnsignedLongLong(size); return result; } /****************************************************************************** * * * Paramètres : self = contenu binaire à manipuler. * * args = non utilisé ici. * * * * Description : Lit un nombre non signé sur un octet. * * * * Retour : Bilan de l'opération. * * * * Remarques : - * * * ******************************************************************************/ static PyObject *py_binary_content_read_u8(PyObject *self, PyObject *args) { PyObject *result; /* Instance à retourner */ GBinContent *content; /* Version GLib du format */ int ret; /* Bilan de lecture des args. */ PyObject *addr_obj; /* Objet pour une position */ vmpa2t *addr; /* Position interne associée */ uint8_t val; /* Valeur lue à faire suivre */ bool status; /* Bilan de l'opération */ content = G_BIN_CONTENT(pygobject_get(self)); //printf("Passage\n"); ret = PyArg_ParseTuple(args, "O", &addr_obj); //printf("ret == %d\n", ret); if (!ret) return NULL; addr = get_internal_vmpa(addr_obj); if (addr == NULL) /* ... */; status = g_binary_content_read_u8(content, addr, &val); if (!status) return NULL; //printf("val :: 0x%02hhx\n", val); result = PyBytes_FromStringAndSize((char *)&val, 1);; //Py_INCREF(result); return result; } /****************************************************************************** * * * Paramètres : - * * * * Description : Fournit un accès à une définition de type à diffuser. * * * * Retour : Définition d'objet pour Python. * * * * Remarques : - * * * ******************************************************************************/ static PyMethodDef py_binary_content_methods[] = { { "get_checksum", py_binary_content_get_checksum, METH_NOARGS, "get_checksum($self, /)\n--\n\nCompute a SHA256 hash as chechsum of handled data." }, { "compute_size", py_binary_content_compute_size, METH_NOARGS, "compute_size($self, /)\n--\n\nCompute the quantity of readable bytes." }, { "read_u8", py_binary_content_read_u8, METH_VARARGS, "read_u8($self, addr, /)\n--\n\nRead an unsigned byte from a given position." }, { NULL } }; static PyGetSetDef py_binary_content_getseters[] = { { NULL } }; PyTypeObject py_binary_content_type = { PyVarObject_HEAD_INIT(NULL, 0) .tp_name = "pychrysalide.analysis.contents.BinContent", .tp_basicsize = sizeof(PyObject), .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, .tp_doc = "PyChrysalide binary content", .tp_methods = py_binary_content_methods, //.tp_getset = py_binary_content_getseters }; PyTypeObject *get_python_binary_content_type(void) { #if 0 static PyMethodDef py_binary_content_methods[] = { { "get_checksum", py_binary_content_get_checksum, METH_NOARGS, "get_checksum($self, /)\n--\n\nCompute a SHA256 hash as chechsum of handled data." }, { "compute_size", py_binary_content_compute_size, METH_NOARGS, "compute_size($self, /)\n--\n\nCompute the quantity of readable bytes." }, { "read_u8", py_binary_content_read_u8, METH_VARARGS, "read_u8($self, addr, /)\n--\n\nRead an unsigned byte from a given position." }, { NULL } }; static PyGetSetDef py_binary_content_getseters[] = { { NULL } }; static PyTypeObject py_binary_content_type = { PyVarObject_HEAD_INIT(NULL, 0) .tp_name = "pychrysalide.analysis.contents.BinContent", .tp_basicsize = sizeof(PyObject), .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, .tp_doc = "PyChrysalide binary content", .tp_methods = py_binary_content_methods, //.tp_getset = py_binary_content_getseters }; #endif return &py_binary_content_type; } /****************************************************************************** * * * Paramètres : module = module dont la définition est à compléter. * * * * Description : Prend en charge l'objet 'pychrysalide.glibext.BinContent'. * * * * Retour : Bilan de l'opération. * * * * Remarques : - * * * ******************************************************************************/ bool register_python_binary_content(PyObject *module) { PyTypeObject *py_binary_content_type; /* Type Python 'BinContent' */ int ret; /* Bilan d'un appel */ PyObject *dict; /* Dictionnaire du module */ py_binary_content_type = get_python_binary_content_type(); //py_binary_content_type->tp_base = &PyGObject_Type; //py_binary_content_type->tp_basicsize = py_binary_content_type->tp_base->tp_basicsize; //py_binary_content_type->tp_base = &PyObject_Type; //py_binary_content_type->tp_basicsize = py_binary_content_type->tp_base->tp_basicsize; /* if (PyType_Ready(py_binary_content_type) != 0) return false; */ /* Py_INCREF(py_binary_content_type); ret = PyModule_AddObject(module, "BinContent", (PyObject *)py_binary_content_type); if (ret != 0) return false; */ dict = PyModule_GetDict(module); pyg_register_interface(dict, "BinContent", G_TYPE_BIN_CONTENT, py_binary_content_type); return true; }