diff options
Diffstat (limited to 'plugins/pychrysalide/arch/operands/targetable.c')
| -rw-r--r-- | plugins/pychrysalide/arch/operands/targetable.c | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/plugins/pychrysalide/arch/operands/targetable.c b/plugins/pychrysalide/arch/operands/targetable.c new file mode 100644 index 0000000..a633b82 --- /dev/null +++ b/plugins/pychrysalide/arch/operands/targetable.c @@ -0,0 +1,202 @@ + +/* Chrysalide - Outil d'analyse de fichiers binaires + * targetable.c - prototypes pour l'équivalent Python du fichier "arch/operands/targetable.c" + * + * Copyright (C) 2018 Cyrille Bagard + * + * This file is part of Chrysalide. + * + * Chrysalide is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * Chrysalide is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + + +#include "targetable.h" + + +#include <pygobject.h> + + +#include <i18n.h> + + +#include <arch/operands/targetable.h> + + +#include "../processor.h" +#include "../vmpa.h" +#include "../../access.h" +#include "../../helpers.h" +#include "../../format/format.h" + + + +#define TARGETABLE_OPERAND_DOC \ + "The TargetableOperand interface depicts operands which can drive to" \ + " another location.\n" \ + "\n" \ + "By instance, an immediate value can target a given address into" \ + " some function code." + + + +/* Obtient l'adresse de la cible visée par un opérande. */ +static PyObject *py_targetable_operand_get_addr(PyObject *, PyObject *); + + + +/****************************************************************************** +* * +* Paramètres : self = contenu binaire à manipuler. * +* args = non utilisé ici. * +* * +* Description : Obtient l'adresse de la cible visée par un opérande. * +* * +* Retour : Localisation de la cible ou None. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static PyObject *py_targetable_operand_get_addr(PyObject *self, PyObject *args) +{ + PyObject *result; /* Instance à retourner */ + vmpa2t *src; /* Version native d'adresse */ + GBinFormat *format; /* Instance GLib du format */ + GArchProcessor *proc; /* Instance GLib de l'archi. */ + int ret; /* Bilan de lecture des args. */ + GTargetableOperand *operand; /* Instance à manipuler */ + vmpa2t addr; /* Localisation à cibler */ + bool defined; /* Cible définie ? */ + +#define TARGETABLE_OPERAND_GET_ADDR_METHOD PYTHON_METHOD_DEF \ +( \ + get_addr, "$self, src, format, proc", \ + METH_VARARGS, py_targetable_operand, \ + "Compute a target address from an operand." \ + "\n" \ + "The following arguments are required:\n" \ + "* src is the location of the instruction owning the operand, as a" \ + " pychrysalide.arch.vmpa instance.\n" \ + "* format is a pychrysalide.format.BinFormat instance, providing" \ + " all needed information.\n" \ + "* proc is a pychrysalide.arch.ArchProcessor instance, providing" \ + " all needed information too.\n" \ + "\n" \ + "The result is a pychrysalide.arch.vmpa address or None." \ +) + + ret = PyArg_ParseTuple(args, "O&O&O&", + convert_any_to_vmpa, &src, + convert_to_binary_format, &format, + convert_to_arch_processor, &proc); + if (!ret) return NULL; + + operand = G_TARGETABLE_OPERAND(pygobject_get(self)); + + defined = g_targetable_operand_get_addr(operand, src, format, proc, &addr); + + if (defined) + result = build_from_internal_vmpa(&addr); + else + { + result = Py_None; + Py_INCREF(result); + } + + clean_vmpa_arg(src); + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : - * +* * +* Description : Fournit un accès à une définition de type à diffuser. * +* * +* Retour : Définition d'objet pour Python. * +* * +* Remarques : - * +* * +******************************************************************************/ + +PyTypeObject *get_python_targetable_operand_type(void) +{ + static PyMethodDef py_targetable_operand_methods[] = { + TARGETABLE_OPERAND_GET_ADDR_METHOD, + { NULL } + }; + + static PyGetSetDef py_targetable_operand_getseters[] = { + { NULL } + }; + + static PyTypeObject py_targetable_operand_type = { + + PyVarObject_HEAD_INIT(NULL, 0) + + .tp_name = "pychrysalide.arch.operands.TargetableOperand", + .tp_basicsize = sizeof(PyObject), + + .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, + + .tp_doc = TARGETABLE_OPERAND_DOC, + + .tp_methods = py_targetable_operand_methods, + .tp_getset = py_targetable_operand_getseters + + }; + + return &py_targetable_operand_type; + +} + + +/****************************************************************************** +* * +* Paramètres : module = module dont la définition est à compléter. * +* * +* Description : Prend en charge l'objet 'pychrysalide.....TargetableOperand'.* +* * +* Retour : Bilan de l'opération. * +* * +* Remarques : - * +* * +******************************************************************************/ + +bool ensure_python_targetable_operand_is_registered(void) +{ + PyTypeObject *type; /* Type 'TargetableOperand' */ + PyObject *module; /* Module à recompléter */ + PyObject *dict; /* Dictionnaire du module */ + + type = get_python_targetable_operand_type(); + + if (!PyType_HasFeature(type, Py_TPFLAGS_READY)) + { + module = get_access_to_python_module("pychrysalide.arch.operands"); + + dict = PyModule_GetDict(module); + + if (!register_interface_for_pygobject(dict, G_TYPE_TARGETABLE_OPERAND, type)) + return false; + + } + + return true; + +} |