diff options
Diffstat (limited to 'plugins/pychrysa/analysis/content.c')
-rw-r--r-- | plugins/pychrysa/analysis/content.c | 297 |
1 files changed, 297 insertions, 0 deletions
diff --git a/plugins/pychrysa/analysis/content.c b/plugins/pychrysa/analysis/content.c new file mode 100644 index 0000000..a37aa44 --- /dev/null +++ b/plugins/pychrysa/analysis/content.c @@ -0,0 +1,297 @@ + +/* 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 <pygobject.h> + + +#include <analysis/content.h> + + + +/* 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; + +} |