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-rw-r--r--plugins/pychrysa/analysis/content.c220
1 files changed, 169 insertions, 51 deletions
diff --git a/plugins/pychrysa/analysis/content.c b/plugins/pychrysa/analysis/content.c
index a37aa44..bd25589 100644
--- a/plugins/pychrysa/analysis/content.c
+++ b/plugins/pychrysa/analysis/content.c
@@ -25,10 +25,15 @@
#include "content.h"
+#include <assert.h>
#include <pygobject.h>
#include <analysis/content.h>
+#include <common/endianness.h>
+
+
+#include "../arch/vmpa.h"
@@ -41,6 +46,16 @@ 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 *);
+/* Lit un nombre non signé sur deux octets. */
+static PyObject *py_binary_content_read_u16(PyObject *, PyObject *);
+
+/* Lit un nombre non signé sur quatre octets. */
+static PyObject *py_binary_content_read_u32(PyObject *, PyObject *);
+
+/* Lit un nombre non signé sur huit octets. */
+static PyObject *py_binary_content_read_u64(PyObject *, PyObject *);
+
+
/******************************************************************************
@@ -130,99 +145,202 @@ static PyObject *py_binary_content_read_u8(PyObject *self, PyObject *args)
bool status; /* Bilan de l'opération */
content = G_BIN_CONTENT(pygobject_get(self));
-
- //printf("Passage\n");
+ assert(content != NULL);
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) /* ... */;
+ assert(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);
+
+ return result;
+
+}
+
+
+/******************************************************************************
+* *
+* Paramètres : self = contenu binaire à manipuler. *
+* args = non utilisé ici. *
+* *
+* Description : Lit un nombre non signé sur deux octets. *
+* *
+* Retour : Bilan de l'opération. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+static PyObject *py_binary_content_read_u16(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 */
+ unsigned long endianness; /* Boutisme de la lecture */
+ vmpa2t *addr; /* Position interne associée */
+ uint16_t val; /* Valeur lue à faire suivre */
+ bool status; /* Bilan de l'opération */
+
+ content = G_BIN_CONTENT(pygobject_get(self));
+ assert(content != NULL);
+
+ ret = PyArg_ParseTuple(args, "Ok", &addr_obj, &endianness);
+ if (!ret) return NULL;
+
+ addr = get_internal_vmpa(addr_obj);
+ assert(addr != NULL);
+
+ status = g_binary_content_read_u16(content, addr, endianness, &val);
+ if (!status) return NULL;
- result = PyBytes_FromStringAndSize((char *)&val, 1);;
- //Py_INCREF(result);
+ result = PyBytes_FromStringAndSize((char *)&val, 2);
return result;
}
+/******************************************************************************
+* *
+* Paramètres : self = contenu binaire à manipuler. *
+* args = non utilisé ici. *
+* *
+* Description : Lit un nombre non signé sur quatre octets. *
+* *
+* Retour : Bilan de l'opération. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+static PyObject *py_binary_content_read_u32(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 */
+ unsigned long endianness; /* Boutisme de la lecture */
+ vmpa2t *addr; /* Position interne associée */
+ uint32_t val; /* Valeur lue à faire suivre */
+ bool status; /* Bilan de l'opération */
+
+ content = G_BIN_CONTENT(pygobject_get(self));
+ assert(content != NULL);
+
+ ret = PyArg_ParseTuple(args, "Ok", &addr_obj, &endianness);
+ if (!ret) return NULL;
+
+ addr = get_internal_vmpa(addr_obj);
+ assert(addr != NULL);
+
+ status = g_binary_content_read_u32(content, addr, endianness, &val);
+ if (!status) return NULL;
+
+ result = PyBytes_FromStringAndSize((char *)&val, 4);
+
+ return result;
+}
/******************************************************************************
* *
-* Paramètres : - *
+* Paramètres : self = contenu binaire à manipuler. *
+* args = non utilisé ici. *
* *
-* Description : Fournit un accès à une définition de type à diffuser. *
+* Description : Lit un nombre non signé sur huit octets. *
* *
-* Retour : Définition d'objet pour Python. *
+* Retour : Bilan de l'opération. *
* *
* Remarques : - *
* *
******************************************************************************/
+static PyObject *py_binary_content_read_u64(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 */
+ unsigned long endianness; /* Boutisme de la lecture */
+ vmpa2t *addr; /* Position interne associée */
+ uint64_t val; /* Valeur lue à faire suivre */
+ bool status; /* Bilan de l'opération */
+
+ content = G_BIN_CONTENT(pygobject_get(self));
+ assert(content != NULL);
+
+ ret = PyArg_ParseTuple(args, "Ok", &addr_obj, &endianness);
+ if (!ret) return NULL;
+
+ addr = get_internal_vmpa(addr_obj);
+ assert(addr != NULL);
-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($self, addr, /)\n--\n\nRead an unsigned byte from a given position."
- },
- { NULL }
-};
+ status = g_binary_content_read_u64(content, addr, endianness, &val);
+ if (!status) return NULL;
+
+ result = PyBytes_FromStringAndSize((char *)&val, 8);
-static PyGetSetDef py_binary_content_getseters[] = {
- { NULL }
-};
+ return result;
-PyTypeObject py_binary_content_type = {
+}
- PyVarObject_HEAD_INIT(NULL, 0)
- .tp_name = "pychrysalide.analysis.contents.BinContent",
- .tp_basicsize = sizeof(PyObject),
- .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
- .tp_doc = "PyChrysalide binary content",
- .tp_methods = py_binary_content_methods,
- //.tp_getset = py_binary_content_getseters
-};
+/******************************************************************************
+* *
+* Paramètres : - *
+* *
+* Description : Fournit un accès à une définition de type à diffuser. *
+* *
+* Retour : Définition d'objet pour Python. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
PyTypeObject *get_python_binary_content_type(void)
{
-#if 0
static PyMethodDef py_binary_content_methods[] = {
- { "get_checksum", py_binary_content_get_checksum,
- METH_NOARGS,
- "get_checksum($self, /)\n--\n\nCompute a SHA256 hash as chechsum of handled data."
+ {
+ "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."
},
- { "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."
},
- { "read_u8", py_binary_content_read_u8,
- METH_VARARGS,
- "read_u8($self, addr, /)\n--\n\nRead an unsigned byte from a given position."
+ {
+ "read_u16", py_binary_content_read_u16,
+ METH_VARARGS,
+ "read_u16($self, addr, endianness, /)\n--\n\nRead two unsigned bytes from a given position."
+ },
+ {
+ "read_u32", py_binary_content_read_u32,
+ METH_VARARGS,
+ "read_u32($self, addr, endianness, /)\n--\n\nRead four unsigned bytes from a given position."
+ },
+ {
+ "read_u64", py_binary_content_read_u64,
+ METH_VARARGS,
+ "read_u64($self, addr, endianness, /)\n--\n\nRead eight unsigned bytes from a given position."
},
{ NULL }
};
@@ -243,10 +361,10 @@ PyTypeObject *get_python_binary_content_type(void)
.tp_doc = "PyChrysalide binary content",
.tp_methods = py_binary_content_methods,
- //.tp_getset = py_binary_content_getseters
+ .tp_getset = py_binary_content_getseters
};
-#endif
+
return &py_binary_content_type;
}
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