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authorCyrille Bagard <nocbos@gmail.com>2018-02-16 17:58:35 (GMT)
committerCyrille Bagard <nocbos@gmail.com>2018-02-16 17:58:35 (GMT)
commitd5e94fd2895a5f9c4903bdaddf75727a54aec181 (patch)
treed2f11a1862e6df3d86c4f65aeb98e6fc04e7cf3b /plugins/elf/python
parentd93d67a2408fd5c09e73b40fdbd28d4914254a90 (diff)
Extended the ELF format support.
Diffstat (limited to 'plugins/elf/python')
-rw-r--r--plugins/elf/python/Makefile.am1
-rw-r--r--plugins/elf/python/constants.c6
-rw-r--r--plugins/elf/python/dynamic.c46
-rw-r--r--plugins/elf/python/dynamic.h3
-rw-r--r--plugins/elf/python/elf_def.c195
-rw-r--r--plugins/elf/python/elf_def.h53
-rw-r--r--plugins/elf/python/format.c30
-rw-r--r--plugins/elf/python/program.c2
-rw-r--r--plugins/elf/python/section.c2
9 files changed, 335 insertions, 3 deletions
diff --git a/plugins/elf/python/Makefile.am b/plugins/elf/python/Makefile.am
index 6080e86..ce2fe74 100644
--- a/plugins/elf/python/Makefile.am
+++ b/plugins/elf/python/Makefile.am
@@ -4,6 +4,7 @@ noinst_LTLIBRARIES = libelfpython.la
libelfpython_la_SOURCES = \
constants.h constants.c \
dynamic.h dynamic.c \
+ elf_def.h elf_def.c \
format.h format.c \
module.h module.c \
program.h program.c \
diff --git a/plugins/elf/python/constants.c b/plugins/elf/python/constants.c
index 1e92616..098443c 100644
--- a/plugins/elf/python/constants.c
+++ b/plugins/elf/python/constants.c
@@ -62,10 +62,16 @@ static bool define_python_binary_format_common_constants(PyTypeObject *obj_type)
/* Composition du champ e_ident */
+ if (result) result = PyDict_AddIntMacro(obj_type, EI_MAG0);
+ if (result) result = PyDict_AddIntMacro(obj_type, EI_MAG1);
+ if (result) result = PyDict_AddIntMacro(obj_type, EI_MAG2);
+ if (result) result = PyDict_AddIntMacro(obj_type, EI_MAG3);
if (result) result = PyDict_AddIntMacro(obj_type, EI_CLASS);
if (result) result = PyDict_AddIntMacro(obj_type, EI_DATA);
if (result) result = PyDict_AddIntMacro(obj_type, EI_VERSION);
if (result) result = PyDict_AddIntMacro(obj_type, EI_OSABI);
+ if (result) result = PyDict_AddIntMacro(obj_type, EI_ABIVERSION);
+ if (result) result = PyDict_AddIntMacro(obj_type, EI_PAD);
/* ... EI_CLASS */
diff --git a/plugins/elf/python/dynamic.c b/plugins/elf/python/dynamic.c
index 5c060c1..9fe6eb4 100644
--- a/plugins/elf/python/dynamic.c
+++ b/plugins/elf/python/dynamic.c
@@ -1,6 +1,6 @@
/* Chrysalide - Outil d'analyse de fichiers binaires
- * dynamic.c - prototypes pour l'équivalent Python du fichier "plugins/elf/dynamic.c"
+ * dynamic.c - équivalent Python du fichier "plugins/elf/dynamic.c"
*
* Copyright (C) 2017 Cyrille Bagard
*
@@ -29,12 +29,56 @@
#include <pygobject.h>
+#include "translate.h"
#include "../dynamic.h"
/******************************************************************************
* *
+* Paramètres : self = format Elf à manipuler. *
+* args = indice de la section visée. *
+* *
+* Description : Retrouve un élément dans la section dynamique par son indice.*
+* *
+* Retour : Elément trouvé ou rien (None). *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+PyObject *py_elf_format_find_dynamic_item_by_index(PyObject *self, PyObject *args)
+{
+ PyObject *result; /* Trouvaille à retourner */
+ GElfFormat *format; /* Version GLib du format */
+ unsigned long index; /* Indice de l'élément visé */
+ int ret; /* Bilan de lecture des args. */
+ elf_dyn item; /* Informations remontées */
+ bool found; /* Recherches concluantes ? */
+
+ format = G_ELF_FORMAT(pygobject_get(self));
+
+ ret = PyArg_ParseTuple(args, "k", &index);
+ if (!ret) return NULL;
+
+ found = find_elf_dynamic_item_by_index(format, index, &item);
+
+ if (found)
+ result = translate_elf_dyn_to_python(format, &item);
+
+ else
+ {
+ result = Py_None;
+ Py_INCREF(result);
+ }
+
+ return result;
+
+}
+
+
+/******************************************************************************
+* *
* Paramètres : self = classe représentant un format ELF. *
* closure = adresse non utilisée ici. *
* *
diff --git a/plugins/elf/python/dynamic.h b/plugins/elf/python/dynamic.h
index b1c4008..4ef2936 100644
--- a/plugins/elf/python/dynamic.h
+++ b/plugins/elf/python/dynamic.h
@@ -30,6 +30,9 @@
+/* Retrouve un élément dans la section dynamique par son indice. */
+PyObject *py_elf_format_find_dynamic_item_by_index(PyObject *, PyObject *);
+
/* Fournit la liste des objets partagés requis. */
PyObject *py_elf_format_get_needed(PyObject *, void *);
diff --git a/plugins/elf/python/elf_def.c b/plugins/elf/python/elf_def.c
new file mode 100644
index 0000000..0721020
--- /dev/null
+++ b/plugins/elf/python/elf_def.c
@@ -0,0 +1,195 @@
+
+/* Chrysalide - Outil d'analyse de fichiers binaires
+ * elf_def.c - équivalent Python du fichier "plugins/elf/elf_def.c"
+ *
+ * Copyright (C) 2017 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 "elf_def.h"
+
+
+#include <pygobject.h>
+
+
+#include "../elf_def.h"
+#include "../elf-int.h"
+
+
+
+/******************************************************************************
+* *
+* Paramètres : self = classe représentant un format ELF. *
+* closure = adresse non utilisée ici. *
+* *
+* Description : Indique la taille d'un entête ELF. *
+* *
+* Retour : Taille d'une structure ELF adaptée à l'architecture. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+PyObject *py_elf_format_get_sizeof_hdr(PyObject *self, void *closure)
+{
+ PyObject *result; /* Liste éventuelle à renvoyer */
+ GElfFormat *format; /* Version native */
+
+ format = G_ELF_FORMAT(pygobject_get(self));
+
+ result = PyLong_FromSize_t(ELF_SIZEOF_HDR(format));
+
+ return result;
+
+}
+
+
+/******************************************************************************
+* *
+* Paramètres : self = classe représentant un format ELF. *
+* closure = adresse non utilisée ici. *
+* *
+* Description : Indique la taille d'un entête de programme ELF. *
+* *
+* Retour : Taille d'une structure ELF adaptée à l'architecture. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+PyObject *py_elf_format_get_sizeof_phdr(PyObject *self, void *closure)
+{
+ PyObject *result; /* Liste éventuelle à renvoyer */
+ GElfFormat *format; /* Version native */
+
+ format = G_ELF_FORMAT(pygobject_get(self));
+
+ result = PyLong_FromSize_t(ELF_SIZEOF_PHDR(format));
+
+ return result;
+
+}
+
+
+/******************************************************************************
+* *
+* Paramètres : self = classe représentant un format ELF. *
+* closure = adresse non utilisée ici. *
+* *
+* Description : Indique la taille d'un entête de section ELF. *
+* *
+* Retour : Taille d'une structure ELF adaptée à l'architecture. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+PyObject *py_elf_format_get_sizeof_shdr(PyObject *self, void *closure)
+{
+ PyObject *result; /* Liste éventuelle à renvoyer */
+ GElfFormat *format; /* Version native */
+
+ format = G_ELF_FORMAT(pygobject_get(self));
+
+ result = PyLong_FromSize_t(ELF_SIZEOF_SHDR(format));
+
+ return result;
+
+}
+
+
+/******************************************************************************
+* *
+* Paramètres : self = classe représentant un format ELF. *
+* closure = adresse non utilisée ici. *
+* *
+* Description : Indique la taille d'une entité dynamique de format ELF. *
+* *
+* Retour : Taille d'une structure ELF adaptée à l'architecture. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+PyObject *py_elf_format_get_sizeof_dyn(PyObject *self, void *closure)
+{
+ PyObject *result; /* Liste éventuelle à renvoyer */
+ GElfFormat *format; /* Version native */
+
+ format = G_ELF_FORMAT(pygobject_get(self));
+
+ result = PyLong_FromSize_t(ELF_SIZEOF_DYN(format));
+
+ return result;
+
+}
+
+
+/******************************************************************************
+* *
+* Paramètres : self = classe représentant un format ELF. *
+* closure = adresse non utilisée ici. *
+* *
+* Description : Indique la taille d'une information sur un symbole ELF. *
+* *
+* Retour : Taille d'une structure ELF adaptée à l'architecture. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+PyObject *py_elf_format_get_sizeof_sym(PyObject *self, void *closure)
+{
+ PyObject *result; /* Liste éventuelle à renvoyer */
+ GElfFormat *format; /* Version native */
+
+ format = G_ELF_FORMAT(pygobject_get(self));
+
+ result = PyLong_FromSize_t(ELF_SIZEOF_SYM(format));
+
+ return result;
+
+}
+
+
+/******************************************************************************
+* *
+* Paramètres : self = classe représentant un format ELF. *
+* closure = adresse non utilisée ici. *
+* *
+* Description : Indique la taille d'une information de relocalisation ELF. *
+* *
+* Retour : Taille d'une structure ELF adaptée à l'architecture. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+PyObject *py_elf_format_get_sizeof_rel(PyObject *self, void *closure)
+{
+ PyObject *result; /* Liste éventuelle à renvoyer */
+ GElfFormat *format; /* Version native */
+
+ format = G_ELF_FORMAT(pygobject_get(self));
+
+ result = PyLong_FromSize_t(ELF_SIZEOF_REL(format));
+
+ return result;
+
+}
diff --git a/plugins/elf/python/elf_def.h b/plugins/elf/python/elf_def.h
new file mode 100644
index 0000000..134dd13
--- /dev/null
+++ b/plugins/elf/python/elf_def.h
@@ -0,0 +1,53 @@
+
+/* Chrysalide - Outil d'analyse de fichiers binaires
+ * elf_def.h - prototypes pour l'équivalent Python du fichier "plugins/elf/elf_def.h"
+ *
+ * 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
+ */
+
+
+#ifndef _PLUGINS_ELF_PYTHON_ELF_DEF_H
+#define _PLUGINS_ELF_PYTHON_ELF_DEF_H
+
+
+#include <Python.h>
+
+
+
+/* Indique la taille d'un entête ELF. */
+PyObject *py_elf_format_get_sizeof_hdr(PyObject *, void *);
+
+/* Indique la taille d'un entête de programme ELF. */
+PyObject *py_elf_format_get_sizeof_phdr(PyObject *, void *);
+
+/* Indique la taille d'un entête de section ELF. */
+PyObject *py_elf_format_get_sizeof_shdr(PyObject *, void *);
+
+/* Indique la taille d'une entité dynamique de format ELF. */
+PyObject *py_elf_format_get_sizeof_dyn(PyObject *, void *);
+
+/* Indique la taille d'une information sur un symbole ELF. */
+PyObject *py_elf_format_get_sizeof_sym(PyObject *, void *);
+
+/* Indique la taille d'une information de relocalisation ELF. */
+PyObject *py_elf_format_get_sizeof_rel(PyObject *, void *);
+
+
+
+#endif /* _PLUGINS_ELF_PYTHON_ELF_DEF_H */
diff --git a/plugins/elf/python/format.c b/plugins/elf/python/format.c
index 6b44703..a3d8758 100644
--- a/plugins/elf/python/format.c
+++ b/plugins/elf/python/format.c
@@ -38,6 +38,7 @@
#include "constants.h"
#include "dynamic.h"
+#include "elf_def.h"
#include "program.h"
#include "section.h"
#include "translate.h"
@@ -219,11 +220,40 @@ PyTypeObject *get_python_elf_format_type(void)
METH_VARARGS,
"find_sections_by_type($self, type, /)\n--\n\nFind sections using a given type."
},
+ {
+ "find_dynamic_item_by_index", py_elf_format_find_dynamic_item_by_index,
+ METH_VARARGS,
+ "find_dynamic_item_by_type($self, type, /)\n--\n\nFind an item from the dynamic segment using a given index."
+ },
{ NULL }
};
static PyGetSetDef py_elf_format_getseters[] = {
{
+ "sizeof_hdr", py_elf_format_get_sizeof_hdr, NULL,
+ "Provide the size of Elf_Ehdr structures for the loaded format.", NULL
+ },
+ {
+ "sizeof_phdr", py_elf_format_get_sizeof_phdr, NULL,
+ "Provide the size of Elf_Phdr structures for the loaded format.", NULL
+ },
+ {
+ "sizeof_shdr", py_elf_format_get_sizeof_shdr, NULL,
+ "Provide the size of Elf_Shdr structures for the loaded format.", NULL
+ },
+ {
+ "sizeof_dyn", py_elf_format_get_sizeof_dyn, NULL,
+ "Provide the size of Elf_Dyn structures for the loaded format.", NULL
+ },
+ {
+ "sizeof_sym", py_elf_format_get_sizeof_sym, NULL,
+ "Provide the size of Elf_Sym structures for the loaded format.", NULL
+ },
+ {
+ "sizeof_rel", py_elf_format_get_sizeof_rel, NULL,
+ "Provide the size of Elf_Rel structures for the loaded format.", NULL
+ },
+ {
"needed", py_elf_format_get_needed, NULL,
"Provide the list of requiered shared objects.", NULL
},
diff --git a/plugins/elf/python/program.c b/plugins/elf/python/program.c
index 198a76b..401b0d0 100644
--- a/plugins/elf/python/program.c
+++ b/plugins/elf/python/program.c
@@ -1,6 +1,6 @@
/* Chrysalide - Outil d'analyse de fichiers binaires
- * program.c - prototypes pour l'équivalent Python du fichier "plugins/elf/program.c"
+ * program.c - équivalent Python du fichier "plugins/elf/program.c"
*
* Copyright (C) 2017 Cyrille Bagard
*
diff --git a/plugins/elf/python/section.c b/plugins/elf/python/section.c
index 537babc..b40681d 100644
--- a/plugins/elf/python/section.c
+++ b/plugins/elf/python/section.c
@@ -1,6 +1,6 @@
/* Chrysalide - Outil d'analyse de fichiers binaires
- * section.c - prototypes pour l'équivalent Python du fichier "plugins/elf/section.c"
+ * section.c - équivalent Python du fichier "plugins/elf/section.c"
*
* Copyright (C) 2017 Cyrille Bagard
*