Begun to clean the code by moving the disassembling process into disass/.

git-svn-id: svn://svn.gna.org/svn/chrysalide/trunk@202 abbe820e-26c8-41b2-8c08-b7b2b41f8b0a

1 files changed, 374 insertions, 0 deletions

diff --git a/src/analysis/disass/disassembler.c b/src/analysis/disass/disassembler.c
new file mode 100644
index 0000000..4004de9
--- /dev/null
+++ b/src/analysis/disass/disassembler.c
@@ -0,0 +1,374 @@
+
+/* OpenIDA - Outil d'analyse de fichiers binaires
+ * disassembler.c - encadrement des phases de désassemblage
+ *
+ * Copyright (C) 2010 Cyrille Bagard
+ *
+ *  This file is part of OpenIDA.
+ *
+ *  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 Foobar.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#include "disassembler.h"
+
+
+#include <malloc.h>
+#include <stdio.h>
+#include <string.h>
+
+
+#include <i18n.h>
+
+
+#include "fetch.h"
+#include "links.h"
+#include "output.h"
+#include "../../decomp/lang/asm.h"
+#include "../../format/format.h"
+#include "../../glibext/delayed-int.h"
+
+
+
+/* ------------------------ DESASSEMBLAGE DE BINAIRE DIFFERE ------------------------ */
+
+
+#define G_TYPE_DELAYED_DISASSEMBLY               g_delayed_disassembly_get_type()
+#define G_DELAYED_DISASSEMBLY(obj)               (G_TYPE_CHECK_INSTANCE_CAST((obj), g_delayed_disassembly_get_type(), GDelayedDisassembly))
+#define G_IS_DELAYED_DISASSEMBLY(obj)            (G_TYPE_CHECK_INSTANCE_TYPE((obj), g_delayed_disassembly_get_type()))
+#define G_DELAYED_DISASSEMBLY_CLASS(klass)       (G_TYPE_CHECK_CLASS_CAST((klass), G_TYPE_DELAYED_DISASSEMBLY, GDelayedDisassemblyClass))
+#define G_IS_DELAYED_DISASSEMBLY_CLASS(klass)    (G_TYPE_CHECK_CLASS_TYPE((klass), G_TYPE_DELAYED_DISASSEMBLY))
+#define G_DELAYED_DISASSEMBLY_GET_CLASS(obj)     (G_TYPE_INSTANCE_GET_CLASS((obj), G_TYPE_DELAYED_DISASSEMBLY, GDelayedDisassemblyClass))
+
+
+/* Ensembles binaires à désassembler (instance) */
+typedef struct _GDelayedDisassembly
+{
+    GDelayedWork parent;                    /* A laisser en premier        */
+
+    const GOpenidaBinary *binary;           /* Destinataire final          */
+    const GBinFormat *format;               /* Format du binaire représenté*/
+
+    GBinPart **parts;                       /* Parties binaires à traiter  */
+    size_t count;                           /* Nombre de ces parties       */
+
+    GArchInstruction *instrs;               /* Instructions résultantes    */
+    GCodeBuffer *buffer;                    /* Tampon pour le rendu        */
+
+} GDelayedDisassembly;
+
+/* Ensembles binaires à désassembler (classe) */
+typedef struct _GDelayedDisassemblyClass
+{
+    GDelayedWorkClass parent;               /* A laisser en premier        */
+
+} GDelayedDisassemblyClass;
+
+
+/* Indique le type défini pour les tâches de désassemblage différé. */
+static GType g_delayed_disassembly_get_type(void);
+
+/* Initialise la classe des tâches de désassemblage différé. */
+static void g_delayed_disassembly_class_init(GDelayedDisassemblyClass *);
+
+/* Initialise une tâche de désassemblage différé. */
+static void g_delayed_disassembly_init(GDelayedDisassembly *);
+
+/* Crée une tâche de désassemblage différé. */
+static GDelayedDisassembly *g_delayed_disassembly_new(const GOpenidaBinary *, GBinPart **, size_t, GCodeBuffer *);
+
+/* Assure le désassemblage en différé. */
+static void g_delayed_disassembly_process(GDelayedDisassembly *, GtkExtStatusBar *);
+
+
+
+/* -------------------------- GESTION GLOBALE DE PROCEDURE -------------------------- */
+
+/* Construit la description d'introduction du désassemblage. */
+static void build_disass_prologue(GCodeBuffer *, const char *, const uint8_t *, off_t);
+
+
+
+/* ---------------------------------------------------------------------------------- */
+/*                          DESASSEMBLAGE DE BINAIRE DIFFERE                          */
+/* ---------------------------------------------------------------------------------- */
+
+
+/* Indique le type défini pour les tâches de désassemblage différé. */
+G_DEFINE_TYPE(GDelayedDisassembly, g_delayed_disassembly, G_TYPE_DELAYED_WORK);
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : klass = classe à initialiser.                                *
+*                                                                             *
+*  Description : Initialise la classe des tâches de désassemblage différé.    *
+*                                                                             *
+*  Retour      : -                                                            *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+static void g_delayed_disassembly_class_init(GDelayedDisassemblyClass *klass)
+{
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : disass = instance à initialiser.                             *
+*                                                                             *
+*  Description : Initialise une tâche de désassemblage différé.               *
+*                                                                             *
+*  Retour      : -                                                            *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+static void g_delayed_disassembly_init(GDelayedDisassembly *disass)
+{
+    G_DELAYED_WORK(disass)->run = (run_task_fc)g_delayed_disassembly_process;
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : binary = binaire chargé en attente des résultats.            *
+*                format = format du binaire représenté.                       *
+*                parts  = parties binaires à désassembler.                    *
+*                count  = nombre de parties à traiter.                        *
+*                buffer = tampon de sortie pour les instructions.             *
+*                                                                             *
+*  Description : Crée une tâche de désassemblage différé.                     *
+*                                                                             *
+*  Retour      : Tâche créée.                                                 *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+static GDelayedDisassembly *g_delayed_disassembly_new(const GOpenidaBinary *binary, GBinPart **parts, size_t count, GCodeBuffer *buffer)
+{
+    GDelayedDisassembly *result;            /* Tâche à retourner           */
+
+    result = g_object_new(G_TYPE_DELAYED_DISASSEMBLY, NULL);
+
+    result->binary = binary;
+    result->format = G_BIN_FORMAT(g_openida_binary_get_format(binary));
+
+    result->parts = parts;
+    result->count = count;
+
+    result->buffer = buffer;
+
+    return result;
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : disass    = analyse à mener.                                 *
+*                statusbar = barre de statut à tenir informée.                *
+*                                                                             *
+*  Description : Assure le désassemblage en différé.                          *
+*                                                                             *
+*  Retour      : -                                                            *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+static void g_delayed_disassembly_process(GDelayedDisassembly *disass, GtkExtStatusBar *statusbar)
+{
+    GBinRoutine **routines;                 /* Liste des routines trouvées */
+    size_t routines_count;                  /* Nombre de ces routines      */
+    guint id;                               /* Identifiant de statut       */
+
+    routines = g_binary_format_get_routines(disass->format, &routines_count);
+    qsort(routines, routines_count, sizeof(GBinRoutine *), (__compar_fn_t)g_binary_routine_rcompare);
+
+    /* Première étape */
+
+    id = gtk_extended_status_bar_push(statusbar, _("Disassembling..."), true);
+
+    disass->instrs = disassemble_binary_parts(disass->binary, disass->parts, disass->count,
+                                              statusbar, id);
+
+    gtk_extended_status_bar_remove(statusbar, id);
+
+    /* Seconde étape */
+
+    id = gtk_extended_status_bar_push(statusbar, _("Establishing links..."), true);
+
+    establish_links_between_lines(disass->instrs, routines, routines_count, statusbar, id);
+
+    gtk_extended_status_bar_remove(statusbar, id);
+#if 0
+    /* Troisième  étape */
+
+    id = gtk_extended_status_bar_push(statusbar, _("Finding remaining limits..."), true);
+
+    limit_all_routines(disass->lines, routines, routines_count, statusbar, id);
+
+    gtk_extended_status_bar_remove(statusbar, id);
+#endif
+    /* Quatrième étape */
+
+    id = gtk_extended_status_bar_push(statusbar, _("Printing disassembled code..."), true);
+
+    print_disassembled_instructions(disass->buffer, disass->instrs, routines, routines_count);
+
+    gtk_extended_status_bar_remove(statusbar, id);
+
+}
+
+
+
+/* ---------------------------------------------------------------------------------- */
+/*                            GESTION GLOBALE DE PROCEDURE                            */
+/* ---------------------------------------------------------------------------------- */
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : buffer   = tampon de destination pour le texte.              *
+*                filename = nom du fichier ciblé à décompiler.                *
+*                data     = données en mémoire pour l'empreinte.              *
+*                length   = quantité de données à prendre en compte.          *
+*                                                                             *
+*  Description : Construit la description d'introduction du désassemblage.    *
+*                                                                             *
+*  Retour      : -                                                            *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+static void build_disass_prologue(GCodeBuffer *buffer, const char *filename, const uint8_t *data, off_t length)
+{
+    GLangOutput *output;                    /* Modèle de sortie adéquat    */
+    GBufferLine *line;                      /* Ligne de destination        */
+    size_t len;                             /* Taille du texte             */
+    char *content;                          /* Contenu textuel d'une ligne */
+    GChecksum *checksum;                    /* Calcul de l'empreinte       */
+    const gchar *hex;                       /* Valeur hexadécimale du SHA  */
+
+    output = g_asm_output_new();
+
+    line = g_lang_output_start_comments(output, buffer);
+    if (line != NULL) g_buffer_line_start_merge_at(line, BLC_ADDRESS);
+
+    /* Introduction */
+
+    line = g_lang_output_continue_comments(output, buffer,
+                                           SL(_("Disassembly generated by OpenIDA")));
+    g_buffer_line_start_merge_at(line, BLC_ADDRESS);
+
+    line = g_lang_output_continue_comments(output, buffer,
+                                           SL(_("OpenIDA is free software - © 2008-2010 Cyrille Bagard")));
+    g_buffer_line_start_merge_at(line, BLC_ADDRESS);
+
+    line = g_lang_output_continue_comments(output, buffer, NULL, 0);
+    g_buffer_line_start_merge_at(line, BLC_ADDRESS);
+
+    /* Fichier */
+
+    len = strlen(_("File: ")) + strlen(filename) + 1;
+    content = (char *)calloc(len, sizeof(char));
+
+    snprintf(content, len, "%s%s", _("File: "), filename);
+
+    line = g_lang_output_continue_comments(output, buffer, content, len - 1);
+    g_buffer_line_start_merge_at(line, BLC_ADDRESS);
+
+    free(content);
+
+    /* Checksum SHA256 */
+
+    checksum = g_checksum_new(G_CHECKSUM_SHA256);
+
+    g_checksum_update(checksum, data, length);
+    hex = g_checksum_get_string(checksum);
+
+    len = strlen(_("Sha256: ")) + strlen(hex);
+    content = (char *)calloc(len + 1, sizeof(char));
+
+    snprintf(content, len + 1, "%s%s", _("Sha256: "), hex);
+
+    g_checksum_free(checksum);
+
+    line = g_lang_output_continue_comments(output, buffer, content, len - 1);
+    g_buffer_line_start_merge_at(line, BLC_ADDRESS);
+
+    free(content);
+
+    /* Ligne de séparation */
+
+    line = g_lang_output_continue_comments(output, buffer, NULL, 0);
+    g_buffer_line_start_merge_at(line, BLC_ADDRESS);
+
+    /* Conclusion */
+
+    line = g_lang_output_end_comments(output, buffer);
+    if (line != NULL) g_buffer_line_start_merge_at(line, BLC_ADDRESS);
+
+    g_object_unref(G_OBJECT(output));
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : binary = représentation de binaire chargé.                   *
+*                parts  = parties binaires à désassembler.                    *
+*                count  = nombre de parties à traiter.                        *
+*                                                                             *
+*  Description : Procède au désassemblage d'un contenu binaire donné.         *
+*                                                                             *
+*  Retour      : Tampon de code mis en place.                                 *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+GCodeBuffer *disassemble_binary(const GOpenidaBinary *binary, GBinPart **parts, size_t parts_count)
+{
+    GCodeBuffer *result;                    /* Tampon constitué à renvoyer */
+    const uint8_t *data;                    /* Données binaires brutes     */
+    off_t length;                           /* Quantité de ces données     */
+    GDelayedDisassembly *disass;            /* Désassemblage à mener       */
+    GWorkQueue *queue;                      /* Gestionnaire de différés    */
+
+    result = g_code_buffer_new();
+
+    data = g_openida_binary_get_data(binary, &length);
+    build_disass_prologue(result, g_openida_binary_get_filename(binary), data, length);
+
+    disass = g_delayed_disassembly_new(binary, parts, parts_count, result);
+
+    queue = get_work_queue();
+    g_work_queue_schedule_work(queue, G_DELAYED_WORK(disass));
+
+    g_delayed_work_wait_for_completion(G_DELAYED_WORK(disass));
+
+    g_object_unref(G_OBJECT(disass));
+
+    return result;
+
+}