Created a debugging layout and introduced a heavier use of GLib.

git-svn-id: svn://svn.gna.org/svn/chrysalide/trunk@58 abbe820e-26c8-41b2-8c08-b7b2b41f8b0a

5 files changed, 673 insertions, 0 deletions

diff --git a/src/debug/ptrace/Makefile.am b/src/debug/ptrace/Makefile.am
new file mode 100644
index 0000000..0512721
--- /dev/null
+++ b/src/debug/ptrace/Makefile.am
@@ -0,0 +1,15 @@
+
+lib_LIBRARIES = libdebugptrace.a
+
+libdebugptrace_a_SOURCES =				\
+	options.h options.c					\
+	ptrace.h ptrace.c
+
+libdebugptrace_a_CFLAGS = $(AM_CFLAGS)
+
+
+INCLUDES = $(LIBGTK_CFLAGS) $(LIBXML_CFLAGS)
+
+AM_CPPFLAGS = 
+
+AM_CFLAGS = $(DEBUG_CFLAGS) $(WARNING_FLAGS) $(COMPLIANCE_FLAGS)
diff --git a/src/debug/ptrace/options.c b/src/debug/ptrace/options.c
new file mode 100644
index 0000000..6aa8a1c
--- /dev/null
+++ b/src/debug/ptrace/options.c
@@ -0,0 +1,104 @@
+
+/* OpenIDA - Outil d'analyse de fichiers binaires
+ * options.c - configuration du débogage ptrace()
+ *
+ * Copyright (C) 2008 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 "options.h"
+
+
+#include <libgen.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+
+
+/* ---------------------- OPTIONS POUR LE DEBOGAGE AVEC PTRACE ---------------------- */
+
+
+/* Description des options */
+struct _ptrace_options
+{
+    char *filename;                         /* Fichier à exécuter          */
+    char **argv;                            /* Argument à fournir          */
+
+};
+
+
+
+
+
+
+/* ---------------------------------------------------------------------------------- */
+/*                        OPTIONS POUR LE DEBOGAGE AVEC PTRACE                        */
+/* ---------------------------------------------------------------------------------- */
+
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : binary = élément binaire ciblé par le débogage.              *
+*                                                                             *
+*  Description : Etablit les options par défaut pour un binaire donné.        *
+*                                                                             *
+*  Retour      : Structure mise en place (ou NULL en cas d'échec).            *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+ptrace_options *create_ptrace_options_from_binary(const openida_binary *binary)
+{
+    ptrace_options *result;
+
+    result = (ptrace_options *)calloc(1, sizeof(ptrace_options));
+
+    result->filename = strdup(openida_binary_get_filename(binary));
+
+    result->argv = (char **)calloc(2, sizeof(char *));
+
+    result->argv[0] = basename(result->filename);
+
+    return result;
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : options = options du débogage à consulter.                   *
+*                                                                             *
+*  Description : Lance le processus à déboguer via ptrace().                  *
+*                                                                             *
+*  Retour      : false en cas d'échec.                                        *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+bool run_ptrace_options_process(const ptrace_options *options)
+{
+    execv(options->filename, options->argv);
+    perror("execlp");
+
+    return false;
+
+}
diff --git a/src/debug/ptrace/options.h b/src/debug/ptrace/options.h
new file mode 100644
index 0000000..e49f87c
--- /dev/null
+++ b/src/debug/ptrace/options.h
@@ -0,0 +1,50 @@
+
+/* OpenIDA - Outil d'analyse de fichiers binaires
+ * options.h - prototypes pour la configuration du débogage ptrace()
+ *
+ * Copyright (C) 2008 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/>.
+ */
+
+
+#ifndef _DEBUG_PTRACE_OPTIONS_H
+#define _DEBUG_PTRACE_OPTIONS_H
+
+
+#include <stdbool.h>
+
+
+#include "../../binary.h"
+
+
+
+/* ---------------------- OPTIONS POUR LE DEBOGAGE AVEC PTRACE ---------------------- */
+
+
+/* Description des options */
+typedef struct _ptrace_options ptrace_options;
+
+
+/* Etablit les options par défaut pour un binaire donné. */
+ptrace_options *create_ptrace_options_from_binary(const openida_binary *);
+
+/* Lance le processus à déboguer via ptrace(). */
+bool run_ptrace_options_process(const ptrace_options *);
+
+
+
+#endif  /* _DEBUG_PTRACE_OPTIONS_H */
diff --git a/src/debug/ptrace/ptrace.c b/src/debug/ptrace/ptrace.c
new file mode 100644
index 0000000..8840ce6
--- /dev/null
+++ b/src/debug/ptrace/ptrace.c
@@ -0,0 +1,449 @@
+
+/* OpenIDA - Outil d'analyse de fichiers binaires
+ * ptrace.c - débogage à l'aide de ptrace()
+ *
+ * Copyright (C) 2008 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 "ptrace.h"
+
+
+#include <malloc.h>
+#include <unistd.h>
+#include <signal.h>
+#include <sys/types.h>
+
+
+#include "options.h"
+#include "../debugger-int.h"
+#include "../../panel/log.h"
+
+
+
+
+/** Partie ptrace() **/
+#include <sys/ptrace.h>
+#include <sys/wait.h>
+//#include <linux/user.h>
+#include <sys/syscall.h>   /* For SYS_write etc */
+#include <sys/reg.h>
+/** Partie ptrace() **/
+
+
+
+
+#define _(str) str
+
+
+
+
+/* Débogueur utilisant ptrace() (instance) */
+struct _GPtraceDebugger
+{
+    GBinaryDebugger parent;                 /* A laisser en premier        */
+
+    GCond *cond;                            /* Poursuite du déroulement    */
+    GMutex *mutex;                          /* Accès à la condition        */
+
+    ptrace_options *options;                /* Configuration du débogage   */
+
+    pid_t child;                            /* Processus suivi lancé       */
+
+    gboolean run_again;                     /* Reprise du débogage         */
+
+};
+
+/* Débogueur utilisant ptrace() (classe) */
+struct _GPtraceDebuggerClass
+{
+    GBinaryDebuggerClass parent;            /* A laisser en premier        */
+
+};
+
+
+/* Met en marche le débogueur utilisant ptrace(). */
+bool g_ptrace_debugger_run(GPtraceDebugger *);
+
+/* Remet en marche le débogueur utilisant ptrace(). */
+bool g_ptrace_debugger_resume(GPtraceDebugger *);
+
+/* Tue le débogueur utilisant ptrace(). */
+bool g_ptrace_debugger_kill(GPtraceDebugger *);
+
+/* Procède à un débogage via ptrace(). */
+void *ptrace_thread(GPtraceDebugger *);
+
+/* Fournit la valeur des registres de l'architecture. */
+register_value *get_register_values_using_ptrace_debugger(GPtraceDebugger *, size_t *);
+
+/* Initialise la classe du débogueur utilisant ptrace(). */
+static void g_ptrace_debugger_class_init(GPtraceDebuggerClass *);
+
+/* Procède à l'initialisation du débogueur utilisant ptrace(). */
+static void g_ptrace_debugger_init(GPtraceDebugger *);
+
+
+
+/* Indique le type définit par la GLib pour le débogueur ptrace(). */
+G_DEFINE_TYPE(GPtraceDebugger, g_ptrace_debugger, G_TYPE_BINARY_DEBUGGER);
+
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : klass = classe de débogueur à initialiser.                   *
+*                                                                             *
+*  Description : Initialise la classe du débogueur utilisant ptrace().        *
+*                                                                             *
+*  Retour      : -                                                            *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+static void g_ptrace_debugger_class_init(GPtraceDebuggerClass *klass)
+{
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : debugger = instance de débogueur à préparer.                 *
+*                                                                             *
+*  Description : Procède à l'initialisation du débogueur utilisant ptrace().  *
+*                                                                             *
+*  Retour      : -                                                            *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+static void g_ptrace_debugger_init(GPtraceDebugger *debugger)
+{
+    GBinaryDebugger *parent;                /* Instance parente            */
+
+    parent = G_BINARY_DEBUGGER(debugger);
+
+    parent->run = (basic_debugger_fc)g_ptrace_debugger_run;
+    parent->resume = (resume_debugger_fc)g_ptrace_debugger_resume;
+    parent->kill = (basic_debugger_fc)g_ptrace_debugger_kill;
+
+    parent->get_reg_values = (get_register_values_fc)get_register_values_using_ptrace_debugger;
+
+    debugger->cond = g_cond_new();
+    debugger->mutex = g_mutex_new();
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : debugger = débogueur à lancer.                               *
+*                                                                             *
+*  Description : Met en marche le débogueur utilisant ptrace().               *
+*                                                                             *
+*  Retour      : Bilan de l'opération.                                        *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+bool g_ptrace_debugger_run(GPtraceDebugger *debugger)
+{
+    GError *error;                          /* Bilan de création de thread */
+
+    if (debugger->options == NULL)
+        debugger->options = create_ptrace_options_from_binary(G_BINARY_DEBUGGER(debugger)->binary);
+
+    if (debugger->options == NULL)
+        return false;
+
+
+
+
+    if (!g_thread_create((GThreadFunc)ptrace_thread, debugger, FALSE, &error))
+    {
+        printf ("Failed to create the thread: %s\n", error->message);
+    }
+
+
+    /*
+    printf("Start Debugger with bin :: %p\n", G_BINARY_DEBUGGER_GET_IFACE(debugger)->binary);
+
+    g_signal_emit_by_name(debugger, "debugger-stopped", (uint64_t)0xdeadbeaf);
+    */
+    return true;
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : debugger = débogueur à relancer.                             *
+*                                                                             *
+*  Description : Remet en marche le débogueur utilisant ptrace().             *
+*                                                                             *
+*  Retour      : Bilan de l'opération.                                        *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+bool g_ptrace_debugger_resume(GPtraceDebugger *debugger)
+{
+    g_mutex_lock(debugger->mutex);
+    debugger->run_again = TRUE;
+    g_cond_signal(debugger->cond);
+    g_mutex_unlock(debugger->mutex);
+
+    return true;
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : debugger = débogueur à relancer.                             *
+*                                                                             *
+*  Description : Tue le débogueur utilisant ptrace().                         *
+*                                                                             *
+*  Retour      : Bilan de l'opération.                                        *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+bool g_ptrace_debugger_kill(GPtraceDebugger *debugger)
+{
+    int ret;                                /* Bilan de l'appel système    */
+
+    ret = kill(debugger->child, SIGKILL);
+    if (ret != 0) perror("kill");
+
+    debugger->child = 0;
+
+    g_mutex_lock(debugger->mutex);
+    debugger->run_again = TRUE;
+    g_cond_signal(debugger->cond);
+    g_mutex_unlock(debugger->mutex);
+
+    return true;
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : debugger = encadrement associée à l'opération.               *
+*                                                                             *
+*  Description : Procède à un débogage via ptrace().                          *
+*                                                                             *
+*  Retour      : ???                                                          *
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+void *ptrace_thread(GPtraceDebugger *debugger)
+{
+
+
+
+    long last_eip;                          /* Ancien point d'arrêt        */
+    long cur_eip;                           /* Point d'arrêt courant       */
+
+
+    long orig_eax;
+    int status;
+
+
+    pid_t pid;
+
+
+    bool first_run;                         /* Premier passage ?           */
+
+
+    debugger->child = fork();
+
+    switch (debugger->child)
+    {
+        case -1:
+            perror("fork");
+            exit(-1);
+            break;
+
+        case 0:
+            ptrace(PTRACE_TRACEME, 0, NULL, NULL);
+            run_ptrace_options_process(debugger->options);
+            _exit(-1);
+            break;
+
+        default:
+
+            gdk_threads_enter();
+
+            log_variadic_message(LMT_PROCESS, _("Starting to debug %s..."),
+                                 openida_binary_get_filename(G_BINARY_DEBUGGER(debugger)->binary));
+
+            gdk_flush ();
+            gdk_threads_leave();
+
+            first_run = true;
+
+            while(1)
+            {
+
+
+
+
+                pid = waitpid(debugger->child, &status, 0/*WNOHANG*/);
+                //wait(&status);
+
+                printf("Status :: %d\n", WIFEXITED(status));
+
+                if(WIFEXITED(status))
+                    break;
+
+                orig_eax = ptrace(PTRACE_PEEKUSER,
+                                  debugger->child, 4 * ORIG_EAX, NULL);
+                if (orig_eax == -1)
+                {
+                    //printf("errno :: %d vs %d\n", errno, ESRCH);
+                    perror("ptrace()");
+                }
+
+                /* get GTK thread lock */
+                gdk_threads_enter();
+
+
+                //gtk_text_buffer_insert_at_cursor (info->buffer, "Thread waiting for resume...\n", -1);
+
+                //gdk_flush ();
+
+                /* release GTK thread lock */
+                //gdk_threads_leave();
+
+
+                /* Notification du point d'arrêt */
+
+                cur_eip = ptrace(PTRACE_PEEKUSER, debugger->child, 4 * EIP, NULL);
+
+                if (first_run)
+                {
+                    last_eip = cur_eip;
+                    first_run = false;
+                }
+
+                g_signal_emit_by_name(debugger, "debugger-stopped",
+                                      (uint64_t)last_eip, (uint64_t)cur_eip);
+
+                last_eip = cur_eip;
+
+                /* release GTK thread lock */
+                gdk_flush ();
+
+                gdk_threads_leave();
+
+                g_mutex_lock(debugger->mutex);
+                while (!debugger->run_again)
+                    g_cond_wait(debugger->cond, debugger->mutex);
+                debugger->run_again = FALSE;
+                g_mutex_unlock(debugger->mutex);
+
+
+                if (debugger->child == 0) break;
+
+
+                ptrace(PTRACE_SYSCALL, debugger->child, NULL, NULL);
+
+            }
+
+            log_variadic_message(LMT_PROCESS, _("Finished to debug %s..."),
+                                 openida_binary_get_filename(G_BINARY_DEBUGGER(debugger)->binary));
+
+            break;
+
+    }
+
+    return NULL;
+
+}
+
+
+/******************************************************************************
+*                                                                             *
+*  Paramètres  : debugger = débogueur à utiliser.                             *
+*                count    = nombre de transmissions effetuées.                *
+*                                                                             *
+*  Description : Fournit la valeur des registres de l'architecture.           *
+*                                                                             *
+*  Retour      : Tableau de valeurs transmises à libérer de la mémoire / NULL.*
+*                                                                             *
+*  Remarques   : -                                                            *
+*                                                                             *
+******************************************************************************/
+
+register_value *get_register_values_using_ptrace_debugger(GPtraceDebugger *debugger, size_t *count)
+{
+    register_value *result;                 /* Liste de valeurs renvoyées  */
+    long ret;                               /* Valeur de registre          */
+
+    *count = 9;
+    result = (register_value *)calloc(*count, sizeof(register_value));
+
+    ret = ptrace(PTRACE_PEEKUSER, debugger->child, 4 * EAX, NULL);
+    result[0].name = "eax";
+    result[0].value = ret;
+
+    ret = ptrace(PTRACE_PEEKUSER, debugger->child, 4 * EBX, NULL);
+    result[1].name = "ebx";
+    result[1].value = ret;
+
+    ret = ptrace(PTRACE_PEEKUSER, debugger->child, 4 * ECX, NULL);
+    result[2].name = "ecx";
+    result[2].value = ret;
+
+    ret = ptrace(PTRACE_PEEKUSER, debugger->child, 4 * EDX, NULL);
+    result[3].name = "edx";
+    result[3].value = ret;
+
+    ret = ptrace(PTRACE_PEEKUSER, debugger->child, 4 * ESI, NULL);
+    result[4].name = "esi";
+    result[4].value = ret;
+
+    ret = ptrace(PTRACE_PEEKUSER, debugger->child, 4 * EDI, NULL);
+    result[5].name = "edi";
+    result[5].value = ret;
+
+    ret = ptrace(PTRACE_PEEKUSER, debugger->child, 4 * EBP, NULL);
+    result[6].name = "ebp";
+    result[6].value = ret;
+
+    ret = ptrace(PTRACE_PEEKUSER, debugger->child, 4 * UESP, NULL);
+    result[7].name = "esp";
+    result[7].value = ret;
+
+    ret = ptrace(PTRACE_PEEKUSER, debugger->child, 4 * EIP, NULL);
+    result[8].name = "eip";
+    result[8].value = ret;
+
+    return result;
+
+}
diff --git a/src/debug/ptrace/ptrace.h b/src/debug/ptrace/ptrace.h
new file mode 100644
index 0000000..f0e2c2b
--- /dev/null
+++ b/src/debug/ptrace/ptrace.h
@@ -0,0 +1,55 @@
+
+/* OpenIDA - Outil d'analyse de fichiers binaires
+ * ptrace.h - prototypes pour le débogage à l'aide de ptrace()
+ *
+ * Copyright (C) 2008 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/>.
+ */
+
+
+#ifndef _DEBUG_PTRACE_PTRACE_H
+#define _DEBUG_PTRACE_PTRACE_H
+
+
+#include <glib-object.h>
+
+
+#include "../debuggers.h"
+
+
+
+#define G_TYPE_PTRACE_DEBUGGER            (g_ptrace_debugger_get_type())
+#define G_PTRACE_DEBUGGER(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj), G_TYPE_PTRACE_DEBUGGER, GPtraceDebugger))
+#define G_IS_PTRACE_DEBUGGER(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj), G_TYPE_PTRACE_DEBUGGER))
+#define G_PTRACE_DEBUGGER_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass), G_TYPE_PTRACE_DEBUGGER, GPtraceDebuggerClass))
+#define G_IS_PTRACE_DEBUGGER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), G_TYPE_PTRACE_DEBUGGER))
+#define G_PTRACE_DEBUGGER_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS((obj), G_TYPE_PTRACE_DEBUGGER, GPtraceDebuggerClass))
+
+
+/* Débogueur utilisant ptrace() (instance) */
+typedef struct _GPtraceDebugger GPtraceDebugger;
+
+/* Débogueur utilisant ptrace() (classe) */
+typedef struct _GPtraceDebuggerClass GPtraceDebuggerClass;
+
+
+/* Indique le type définit par la GLib pour le débogueur ptrace(). */
+GType g_ptrace_debugger_get_type(void);
+
+
+
+#endif  /* _DEBUG_PTRACE_PTRACE_H */