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-rw-r--r--src/format/pe/pe.c274
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diff --git a/src/format/pe/pe.c b/src/format/pe/pe.c
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+
+/* Chrysalide - Outil d'analyse de fichiers binaires
+ * pe.c - support du format Portable Executable
+ *
+ * Copyright (C) 2010-2017 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 Chrysalide. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#include "pe.h"
+
+
+#include <string.h>
+
+
+#include "pe-int.h"
+#include "section.h"
+#include "symbols.h"
+
+
+
+/* Initialise la classe des formats d'exécutables PE. */
+static void g_pe_format_class_init(GPeFormatClass *);
+
+/* Initialise une instance de format d'exécutable PE. */
+static void g_pe_format_init(GPeFormat *);
+
+/* Indique le type d'architecture visée par le format. */
+static const char *g_pe_format_get_target_machine(const GPeFormat *);
+
+/* Fournit les références aux zones binaires à analyser. */
+//static GBinPart **g_pe_format_get_parts(const GPeFormat *, size_t *);
+
+
+
+/******************************************************************************
+* *
+* Paramètres : content = contenu binaire à parcourir. *
+* *
+* Description : Indique si le format peut être pris en charge ici. *
+* *
+* Retour : true si la réponse est positive, false sinon. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+bool pe_is_matching(GBinContent *content)
+{
+ bool result; /* Bilan à faire connaître */
+ image_dos_header dos_header; /* En-tête DOS */
+
+ result = false;
+#if 0
+ if (length >= 2)
+ {
+ result = (strncmp((const char *)content, "\x4d\x5a" /* MZ */, 2) == 0);
+ result &= length >= sizeof(image_dos_header);
+ }
+
+ if (result)
+ {
+ memcpy(&dos_header, content, sizeof(image_dos_header));
+
+ result = length >= (dos_header.e_lfanew + 4);
+
+ result &= (strncmp((const char *)&content[dos_header.e_lfanew],
+ "\x50\x45\x00\x00" /* PE00 */, 4) == 0);
+
+ }
+#endif
+ return result;
+
+}
+
+
+/* Indique le type défini pour un format d'exécutable PE. */
+G_DEFINE_TYPE(GPeFormat, g_pe_format, G_TYPE_EXE_FORMAT);
+
+
+/******************************************************************************
+* *
+* Paramètres : klass = classe à initialiser. *
+* *
+* Description : Initialise la classe des formats d'exécutables PE. *
+* *
+* Retour : - *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+static void g_pe_format_class_init(GPeFormatClass *klass)
+{
+
+}
+
+
+/******************************************************************************
+* *
+* Paramètres : format = instance à initialiser. *
+* *
+* Description : Initialise une instance de format d'exécutable PE. *
+* *
+* Retour : - *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+static void g_pe_format_init(GPeFormat *format)
+{
+
+}
+
+
+/******************************************************************************
+* *
+* Paramètres : content = contenu binaire à parcourir. *
+* length = taille du contenu en question. *
+* *
+* Description : Prend en charge un nouveau format PE. *
+* *
+* Retour : Adresse de la structure mise en place ou NULL en cas d'échec.*
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+GBinFormat *g_pe_format_new(const bin_t *content, off_t length)
+{
+ GPeFormat *result; /* Structure à retourner */
+ off_t offset; /* Tête de lecture */
+
+
+ int i;
+
+
+ result = g_object_new(G_TYPE_PE_FORMAT, NULL);
+
+ //g_binary_format_set_content(G_BIN_FORMAT(result), content, length);
+
+ offset = 0;
+
+ if (!read_dos_image_header(result, &offset, &result->dos_header))
+ {
+ /* TODO */
+ return NULL;
+ }
+
+ offset = result->dos_header.e_lfanew;
+
+ if (!read_pe_nt_header(result, &offset, &result->nt_headers))
+ {
+ /* TODO */
+ return NULL;
+ }
+
+ result->section_offset = offset;
+
+ printf("offset :: 0x%08x\n", offset);
+
+ printf("Format :: 0x%08x\n", result->nt_headers.signature);
+
+ printf("directories :: %d\n", result->nt_headers.optional_header.number_of_rva_and_sizes);
+
+ for (i = 0; i < result->nt_headers.optional_header.number_of_rva_and_sizes; i++)
+ printf(" [%d] addr=0x%08x size=%d\n", i,
+ result->nt_headers.optional_header.data_directory[i].virtual_address,
+ result->nt_headers.optional_header.data_directory[i].size);
+
+
+ load_pe_symbols(result);
+
+
+ return G_BIN_FORMAT(result);
+
+}
+
+
+/******************************************************************************
+* *
+* Paramètres : format = informations chargées à consulter. *
+* *
+* Description : Indique le type d'architecture visée par le format. *
+* *
+* Retour : Identifiant de l'architecture ciblée par le format. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+static const char *g_pe_format_get_target_machine(const GPeFormat *format)
+{
+ return "i386";
+
+}
+
+
+/******************************************************************************
+* *
+* Paramètres : format = informations chargées à consulter. *
+* count = quantité de zones listées. [OUT] *
+* *
+* Description : Fournit les références aux zones binaires à analyser. *
+* *
+* Retour : Zones binaires à analyser. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+#if 0
+static GBinPart **g_pe_format_get_parts(const GPeFormat *format, size_t *count)
+{
+ GBinPart **result; /* Tableau à retourner */
+ uint16_t i; /* Boucle de parcours */
+ image_section_header section; /* En-tête de section PE */
+ GBinPart *part; /* Partie à intégrer à la liste*/
+ char name[IMAGE_SIZEOF_SHORT_NAME + 1]; /* Nom de section utilisable */
+
+ result = NULL;
+ *count = 0;
+
+ for (i = 0; i < format->nt_headers.file_header.number_of_sections; i++)
+ {
+ if (!find_pe_section_by_index(format, i, &section))
+ continue;
+
+ if (section.characteristics & IMAGE_SCN_MEM_EXECUTE)
+ {
+ part = g_binary_part_new();
+
+ memset(name, 0, (IMAGE_SIZEOF_SHORT_NAME + 1) * sizeof(char));
+ memcpy(name, section.name, (IMAGE_SIZEOF_SHORT_NAME + 1) * sizeof(char));
+
+ g_binary_part_set_name(part, name);
+
+ printf("section '%s'\n", name);
+
+ g_binary_part_set_values(part,
+ section.pointer_to_raw_data,
+ section.size_of_raw_data,
+ section.virtual_address);
+
+ printf("section[%d] start=0x%08x size=%d addr=0x%08x\n", i,
+ section.pointer_to_raw_data,
+ section.size_of_raw_data,
+ section.virtual_address);
+
+ result = (GBinPart **)realloc(result, ++(*count) * sizeof(GBinPart *));
+ result[*count - 1] = part;
+
+ }
+
+ }
+
+ return result;
+
+}
+#endif
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