diff options
author | Cyrille Bagard <nocbos@gmail.com> | 2012-10-18 00:28:06 (GMT) |
---|---|---|
committer | Cyrille Bagard <nocbos@gmail.com> | 2012-10-18 00:28:06 (GMT) |
commit | f7d126acb7718d4a13ac64c0d71c7d019cc8c18c (patch) | |
tree | b4b32237b99344beba8c03333972efb8f108a5cf /src/arch/x86/operands | |
parent | 2cfb66fcd5e8293d1dd689691bdc8c3517dd183a (diff) |
Reorganized the code for the x86 architecture support.
git-svn-id: svn://svn.gna.org/svn/chrysalide/trunk@274 abbe820e-26c8-41b2-8c08-b7b2b41f8b0a
Diffstat (limited to 'src/arch/x86/operands')
-rw-r--r-- | src/arch/x86/operands/Makefile.am | 21 | ||||
-rw-r--r-- | src/arch/x86/operands/data.c | 207 | ||||
-rw-r--r-- | src/arch/x86/operands/data.h | 60 | ||||
-rw-r--r-- | src/arch/x86/operands/modrm.c | 436 | ||||
-rw-r--r-- | src/arch/x86/operands/modrm.h | 70 | ||||
-rw-r--r-- | src/arch/x86/operands/moffs.c | 189 | ||||
-rw-r--r-- | src/arch/x86/operands/moffs.h | 59 | ||||
-rw-r--r-- | src/arch/x86/operands/register.c | 265 | ||||
-rw-r--r-- | src/arch/x86/operands/register.h | 66 | ||||
-rw-r--r-- | src/arch/x86/operands/relative.c | 221 | ||||
-rw-r--r-- | src/arch/x86/operands/relative.h | 63 |
11 files changed, 1657 insertions, 0 deletions
diff --git a/src/arch/x86/operands/Makefile.am b/src/arch/x86/operands/Makefile.am new file mode 100644 index 0000000..ac48667 --- /dev/null +++ b/src/arch/x86/operands/Makefile.am @@ -0,0 +1,21 @@ + +noinst_LTLIBRARIES = libarchx86operands.la + +libarchx86operands_la_SOURCES = \ + data.h data.c \ + modrm.h modrm.c \ + moffs.h moffs.c \ + register.h register.c \ + relative.h relative.c + +libarchx86_la_CFLAGS = $(AM_CFLAGS) + + +INCLUDES = $(LIBGTK_CFLAGS) $(LIBXML_CFLAGS) + +AM_CPPFLAGS = + +AM_CFLAGS = $(DEBUG_CFLAGS) $(WARNING_FLAGS) $(COMPLIANCE_FLAGS) + + +SUBDIRS = diff --git a/src/arch/x86/operands/data.c b/src/arch/x86/operands/data.c new file mode 100644 index 0000000..22f16b7 --- /dev/null +++ b/src/arch/x86/operands/data.c @@ -0,0 +1,207 @@ + +/* OpenIDA - Outil d'analyse de fichiers binaires + * data.c - opérandes de manipulation de données + * + * Copyright (C) 2012 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 "data.h" + + +#include "../registers.h" +#include "../../operand-int.h" + + + +/* Définition d'un opérande x86 de manipulation de données (instance) */ +struct _GX86DataOperand +{ + GArchOperand parent; /* Instance parente */ + + GX86Register *reg; /* Registre représenté */ + bool dest; /* Déduction du type de segment*/ + +}; + +/* Définition d'un opérande x86 de manipulation de données (classe) */ +struct _GX86DataOperandClass +{ + GArchOperandClass parent; /* Classe parente */ + +}; + + +/* Initialise la classe des opérandes x86 pointant des données. */ +static void g_x86_data_operand_class_init(GX86DataOperandClass *); + +/* Initialise une instance d'opérande x86 pointant des données. */ +static void g_x86_data_operand_init(GX86DataOperand *); + +/* Ajoute du texte simple à un fichier ouvert en écriture. */ +static void g_x86_data_operand_add_text(const GX86DataOperand *, GRenderingOptions *, MainRendering, FILE *); + +/* Ajoute à un tampon GLib le contenu de l'instance spécifiée. */ +static void g_x86_data_operand_to_buffer(const GX86DataOperand *, GBufferLine *, GRenderingOptions *); + + + +/* Indique le type défini par la GLib pour un opérande x86 de manipulation de données. */ +G_DEFINE_TYPE(GX86DataOperand, g_x86_data_operand, G_TYPE_ARCH_OPERAND); + + +/****************************************************************************** +* * +* Paramètres : klass = classe à initialiser. * +* * +* Description : Initialise la classe des opérandes x86 pointant des données. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_x86_data_operand_class_init(GX86DataOperandClass *klass) +{ + +} + + +/****************************************************************************** +* * +* Paramètres : operand = instance à initialiser. * +* * +* Description : Initialise une instance d'opérande pointant des données. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_x86_data_operand_init(GX86DataOperand *operand) +{ + GContentExporter *parent; /* Instance parente */ + + parent = G_CONTENT_EXPORTER(operand); + + parent->add_text = (add_text_fc)g_x86_data_operand_add_text; + parent->export_buffer = (export_buffer_fc)g_x86_data_operand_to_buffer; + +} + + +/****************************************************************************** +* * +* Paramètres : size = taille de l'opérande, et donc du registre. * +* dest = indique si la cible est une destination ou une source.* +* * +* Description : Crée un opérande x86 de manipulation de données. * +* * +* Retour : Opérande mis en place. * +* * +* Remarques : - * +* * +******************************************************************************/ + +GArchOperand *g_x86_data_operand_new(MemoryDataSize size, bool dest) +{ + GX86DataOperand *result; /* Structure à retourner */ + + result = g_object_new(G_TYPE_X86_DATA_OPERAND, NULL); + + result->reg = g_x86_register_new(MDS_32_BITS/* FIXME size*/, dest ? 0x07 : 0x06); + result->dest = dest; + + return G_ARCH_OPERAND(result); + +} + + +/****************************************************************************** +* * +* Paramètres : operand = opérande à transcrire. * +* options = options de rendu. * +* rendering = support effectif final des lignes de code. * +* stream = flux ouvert en écriture. * +* * +* Description : Ajoute du texte simple à un fichier ouvert en écriture. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_x86_data_operand_add_text(const GX86DataOperand *operand, GRenderingOptions *options, MainRendering rendering, FILE *stream) +{ + GContentExporter *exporter; /* Autre vision de l'opérande */ + + exporter = G_CONTENT_EXPORTER(operand); + + if (operand->dest) + g_content_exporter_insert_text(exporter, stream, "es:", 3, RTT_SEGMENT); + else + g_content_exporter_insert_text(exporter, stream, "ds:", 3, RTT_SEGMENT); + + g_content_exporter_insert_text(exporter, stream, "[", 1, RTT_HOOK); + + g_content_exporter_add_text(G_CONTENT_EXPORTER(operand->reg), options, rendering, stream); + + g_content_exporter_insert_text(exporter, stream, "]", 1, RTT_HOOK); + +} + + +/****************************************************************************** +* * +* Paramètres : operand = opérande à transcrire. * +* buffer = espace où placer ledit contenu. * +* options = options de rendu. * +* * +* Description : Ajoute à un tampon GLib le contenu de l'instance spécifiée. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_x86_data_operand_to_buffer(const GX86DataOperand *operand, GBufferLine *buffer, GRenderingOptions *options) +{ + GContentExporter *exporter; /* Autre vision de l'opérande */ + + exporter = G_CONTENT_EXPORTER(operand); + + if (operand->dest) + g_content_exporter_insert_into_buffer(G_CONTENT_EXPORTER(operand), buffer, BLC_ASSEMBLY, + "es:", 3, RTT_SEGMENT); + else + g_content_exporter_insert_into_buffer(G_CONTENT_EXPORTER(operand), buffer, BLC_ASSEMBLY, + "ds:", 3, RTT_SEGMENT); + + g_content_exporter_insert_into_buffer(G_CONTENT_EXPORTER(operand), buffer, BLC_ASSEMBLY, + "[", 1, RTT_HOOK); + + g_content_exporter_to_buffer(G_CONTENT_EXPORTER(operand->reg), buffer, options); + + g_content_exporter_insert_into_buffer(G_CONTENT_EXPORTER(operand), buffer, BLC_ASSEMBLY, + "]", 1, RTT_HOOK); + +} diff --git a/src/arch/x86/operands/data.h b/src/arch/x86/operands/data.h new file mode 100644 index 0000000..406698e --- /dev/null +++ b/src/arch/x86/operands/data.h @@ -0,0 +1,60 @@ + +/* OpenIDA - Outil d'analyse de fichiers binaires + * data.h - prototypes pour les opérandes de manipulation de données + * + * Copyright (C) 2012 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 _ARCH_X86_OPERANDS_DATA_H +#define _ARCH_X86_OPERANDS_DATA_H + + +#include <glib-object.h> + + +#include "../../operand.h" +#include "../../../common/endianness.h" + + + +#define G_TYPE_X86_DATA_OPERAND g_x86_data_operand_get_type() +#define G_X86_DATA_OPERAND(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), g_x86_data_operand_get_type(), GX86DataOperand)) +#define G_IS_X86_DATA_OPERAND(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), g_x86_data_operand_get_type())) +#define G_X86_DATA_OPERAND_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), G_TYPE_X86_DATA_OPERAND, GX86DataOperandClass)) +#define G_IS_X86_DATA_OPERAND_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), G_TYPE_X86_DATA_OPERAND)) +#define G_X86_DATA_OPERAND_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), G_TYPE_X86_DATA_OPERAND, GX86DataOperandClass)) + + + +/* Définition d'un opérande x86 de manipulation de données (instance) */ +typedef struct _GX86DataOperand GX86DataOperand; + +/* Définition d'un opérande x86 de manipulation de données (classe) */ +typedef struct _GX86DataOperandClass GX86DataOperandClass; + + +/* Indique le type défini par la GLib pour un opérande x86 de manipulation de données. */ +GType g_x86_data_operand_get_type(void); + +/* Crée un opérande x86 de manipulation de données. */ +GArchOperand *g_x86_data_operand_new(MemoryDataSize, bool); + + + +#endif /* _ARCH_X86_OPERANDS_DATA_H */ diff --git a/src/arch/x86/operands/modrm.c b/src/arch/x86/operands/modrm.c new file mode 100644 index 0000000..892d5dc --- /dev/null +++ b/src/arch/x86/operands/modrm.c @@ -0,0 +1,436 @@ + +/* OpenIDA - Outil d'analyse de fichiers binaires + * modrm.c - opérandes de type mod/rm + * + * Copyright (C) 2012 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 "modrm.h" + + +#include <math.h> + + +#include "register.h" +#include "../../operand-int.h" + + + +/* Définition d'un opérande x86 de type ModRM (instance) */ +struct _GX86ModRMOperand +{ + GArchOperand parent; /* Instance parente */ + + uint8_t scale; /* Puissance de deux */ + GX86Register *index; /* Registre servant d'indice */ + GX86Register *base; /* Registre de base */ + GImmOperand *displacement; /* Décallage supplémentaire */ + +}; + + +/* Définition d'un opérande x86 de type ModRM (classe) */ +struct _GX86ModRMOperandClass +{ + GArchOperandClass parent; /* Classe parente */ + +}; + + +/* Initialise la classe des opérandes x86 de type ModRM. */ +static void g_x86_mod_rm_operand_class_init(GX86ModRMOperandClass *); + +/* Initialise une instance d'opérande x86 de type ModRM. */ +static void g_x86_mod_rm_operand_init(GX86ModRMOperand *); + +/* Ajoute du texte simple à un fichier ouvert en écriture. */ +static void g_x86_mod_rm_operand_add_text(const GX86ModRMOperand *, GRenderingOptions *, MainRendering, FILE *); + +/* Ajoute à un tampon GLib le contenu de l'instance spécifiée. */ +static void g_x86_mod_rm_operand_to_buffer(const GX86ModRMOperand *, GBufferLine *, GRenderingOptions *); + + + +/* Indique le type défini par la GLib pour un opérande x86 de type ModRM. */ +G_DEFINE_TYPE(GX86ModRMOperand, g_x86_mod_rm_operand, G_TYPE_ARCH_OPERAND); + + +/****************************************************************************** +* * +* Paramètres : klass = classe à initialiser. * +* * +* Description : Initialise la classe des opérandes x86 de type ModRM. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_x86_mod_rm_operand_class_init(GX86ModRMOperandClass *klass) +{ + +} + + +/****************************************************************************** +* * +* Paramètres : operand = instance à initialiser. * +* * +* Description : Initialise une instance d'opérande x86 de type ModRM. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_x86_mod_rm_operand_init(GX86ModRMOperand *operand) +{ + GContentExporter *parent; /* Instance parente */ + + parent = G_CONTENT_EXPORTER(operand); + + parent->add_text = (add_text_fc)g_x86_mod_rm_operand_add_text; + parent->export_buffer = (export_buffer_fc)g_x86_mod_rm_operand_to_buffer; + +} + + +/****************************************************************************** +* * +* Paramètres : data = flux de données à analyser. * +* pos = position courante dans ce flux. [OUT] * +* len = taille totale des données à analyser. * +* size = taille de l'opérande, et donc du registre. * +* * +* Description : Crée un opérande x86 de type ModRM. * +* * +* Retour : Opérande mis en place. * +* * +* Remarques : - * +* * +******************************************************************************/ + +GArchOperand *g_x86_mod_rm_operand_new(const bin_t *data, off_t *pos, off_t len, MemoryDataSize size) +{ + GX86ModRMOperand *result; /* Structure à retourner */ + uint8_t mod; /* Modificateur présent */ + GX86Register *reg; /* Registre lu */ + + mod = (data[*pos] & 0xc0); + + if (mod == 0xc0) + return g_x86_register_operand_new_from_mod_rm(data, pos, len, size, true); + + reg = g_x86_register_new(size, data[*pos] & 0x07); + if (reg == NULL) return NULL; + + (*pos)++; + + /* Vieille astuce de l'emplacement mémoire fixe ? */ + if (g_x86_register_is_base_pointer(reg) && mod == 0x00) + { + /* FIXME *///free_x86_register(reg); + return g_imm_operand_new_from_data(MDS_32_BITS/* FIXME */, data, pos, len, SRE_LITTLE /*FIXME*/); + } + + result = g_object_new(G_TYPE_X86_MOD_RM_OPERAND, NULL); + + /* A la recherche d'un SIB */ + if (g_x86_register_is_stack_pointer(reg)) + { + /* FIXME *///free_x86_register(reg); + + result->base = g_x86_register_new(size, data[*pos] & 0x07); + if (result->base == NULL) goto gxmron_error; + + result->index = g_x86_register_new(size, (data[*pos] & 0x38) >> 3); + if (result->index == NULL) goto gxmron_error; + + result->scale = ((data[*pos] & 0xc0) >> 6); + + if (g_x86_register_is_stack_pointer(result->index)) + { + /* FIXME *///free_x86_register(result->index); + result->index = result->base; + result->base = NULL; + } + + (*pos)++; + + } + + else result->index = reg; + + /* Décallage supplémentaire ? */ + switch (mod) + { + case 0x00: + if (result->base != NULL && g_x86_register_is_base_pointer(result->base)) + { + /* FIXME *///free_x86_register(result->base); + result->base = NULL; + + result->displacement = g_imm_operand_new_from_data(size/* FIXME : !convert mds/aos */, data, pos, len, SRE_LITTLE /* FIXME */); + if (result->displacement == NULL) goto gxmron_error; + + } + break; + + case 0x40: + result->displacement = g_imm_operand_new_from_data(MDS_8_BITS_SIGNED, data, pos, len, SRE_LITTLE /* FIXME */); + if (result->displacement == NULL) goto gxmron_error; + break; + + case 0x80: + result->displacement = g_imm_operand_new_from_data(MDS_32_BITS_SIGNED/* FIXME ! 16/32 */, data, pos, len, SRE_LITTLE /* FIXME */); + if (result->displacement == NULL) goto gxmron_error; + break; + + } + + return G_ARCH_OPERAND(result); + + gxmron_error: + + /* FIXME free(result);*/ + return NULL; + +} + + +/****************************************************************************** +* * +* Paramètres : operand = opérande à transcrire. * +* options = options de rendu. * +* rendering = support effectif final des lignes de code. * +* stream = flux ouvert en écriture. * +* * +* Description : Ajoute du texte simple à un fichier ouvert en écriture. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_x86_mod_rm_operand_add_text(const GX86ModRMOperand *operand, GRenderingOptions *options, MainRendering rendering, FILE *stream) +{ + GContentExporter *exporter; /* Autre vision de l'opérande */ + char tmp[2]; /* Echelle en puissance de 2 */ + + exporter = G_CONTENT_EXPORTER(operand); + + switch (g_rendering_options_get_syntax(options)) + { + case ASX_INTEL: + + g_content_exporter_insert_text(exporter, stream, "[", 1, RTT_HOOK); + + if (operand->scale > 0) + { + snprintf(tmp, 2, "%d", (int)pow(2, operand->scale)); + + g_content_exporter_insert_text(exporter, stream, tmp, 1, RTT_IMMEDIATE); + + g_content_exporter_insert_text(exporter, stream, "*", 1, RTT_SIGNS); + + } + + g_content_exporter_add_text(G_CONTENT_EXPORTER(operand->index), + options, rendering, stream); + + if (operand->base != NULL) + { + g_content_exporter_insert_text(exporter, stream, "+", 1, RTT_SIGNS); + + g_content_exporter_add_text(G_CONTENT_EXPORTER(operand->base), + options, rendering, stream); + + } + + if (operand->displacement != NULL) + { + if (g_imm_operand_is_negative(operand->displacement)) + g_content_exporter_insert_text(exporter, stream, "-", 1, RTT_SIGNS); + else + g_content_exporter_insert_text(exporter, stream, "+", 1, RTT_SIGNS); + + g_content_exporter_add_text(G_CONTENT_EXPORTER(operand->displacement), + options, rendering, stream); + + } + + g_content_exporter_insert_text(exporter, stream, "]", 1, RTT_HOOK); + + break; + + case ASX_ATT: + + /* TODO */ + g_content_exporter_insert_text(exporter, stream, "[ModRM]", 7, RTT_HOOK); + + break; + + } + +} + + +/****************************************************************************** +* * +* Paramètres : operand = opérande à transcrire. * +* buffer = espace où placer ledit contenu. * +* options = options de rendu. * +* * +* Description : Ajoute à un tampon GLib le contenu de l'instance spécifiée. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_x86_mod_rm_operand_to_buffer(const GX86ModRMOperand *operand, GBufferLine *buffer, GRenderingOptions *options) +{ + GContentExporter *exporter; /* Autre vision de l'opérande */ + char tmp[2]; /* Echelle en puissance de 2 */ + + exporter = G_CONTENT_EXPORTER(operand); + + switch (g_rendering_options_get_syntax(options)) + { + case ASX_INTEL: + + g_content_exporter_insert_into_buffer(exporter, buffer, BLC_ASSEMBLY, + "[", 1, RTT_HOOK); + + if (operand->scale > 0) + { + snprintf(tmp, 2, "%d", (int)pow(2, operand->scale)); + + g_content_exporter_insert_into_buffer(exporter, buffer, BLC_ASSEMBLY, + tmp, 1, RTT_IMMEDIATE); + + g_content_exporter_insert_into_buffer(exporter, buffer, BLC_ASSEMBLY, + "*", 1, RTT_SIGNS); + + } + + g_content_exporter_to_buffer(G_CONTENT_EXPORTER(operand->index), buffer, options); + + if (operand->base != NULL) + { + g_content_exporter_insert_into_buffer(exporter, buffer, BLC_ASSEMBLY, + "+", 1, RTT_SIGNS); + + g_content_exporter_to_buffer(G_CONTENT_EXPORTER(operand->base), buffer, options); + + } + + if (operand->displacement != NULL) + { + if (g_imm_operand_is_negative(operand->displacement)) + g_content_exporter_insert_into_buffer(exporter, buffer, BLC_ASSEMBLY, + "-", 1, RTT_SIGNS); + else + g_content_exporter_insert_into_buffer(exporter, buffer, BLC_ASSEMBLY, + "+", 1, RTT_SIGNS); + + g_content_exporter_to_buffer(G_CONTENT_EXPORTER(operand->displacement), buffer, options); + + } + + g_content_exporter_insert_into_buffer(exporter, buffer, BLC_ASSEMBLY, + "]", 1, RTT_HOOK); + + break; + + case ASX_ATT: + + /* TODO */ + g_content_exporter_insert_into_buffer(exporter, buffer, BLC_ASSEMBLY, + "[ModRM]", 7, RTT_HOOK); + + break; + + } + +} + + +/****************************************************************************** +* * +* Paramètres : operand = opérande à consulter. * +* scale = facteur sous forme de puissance de deux. [OUT * +* index = register principal de l'opérande. [OUT] * +* * +* Description : Fournit l'indice et l'échelle d'un opérande x86 ModRM. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +void g_x86_mod_rm_operand_get_scale_and_index(const GX86ModRMOperand *operand, uint8_t *scale, const GX86Register **index) +{ + *scale = operand->scale; + *index = operand->index; + +} + + +/****************************************************************************** +* * +* Paramètres : operand = opérande à consulter. * +* * +* Description : Fournit le registre de base d'un opérande x86 ModRM. * +* * +* Retour : Registre de base de l'opérande. * +* * +* Remarques : - * +* * +******************************************************************************/ + +const GX86Register *g_x86_mod_rm_operand_get_base(const GX86ModRMOperand *operand) +{ + return operand->base; + +} + + +/****************************************************************************** +* * +* Paramètres : operand = opérande à consulter. * +* * +* Description : Fournit le décallage supplémentaire d'un opérande x86 ModRM. * +* * +* Retour : Décallage numérique pour l'opérande. * +* * +* Remarques : - * +* * +******************************************************************************/ + +const GImmOperand *g_x86_mod_rm_operand_get_displacement(const GX86ModRMOperand *operand) +{ + return operand->displacement; + +} diff --git a/src/arch/x86/operands/modrm.h b/src/arch/x86/operands/modrm.h new file mode 100644 index 0000000..89a274f --- /dev/null +++ b/src/arch/x86/operands/modrm.h @@ -0,0 +1,70 @@ + +/* OpenIDA - Outil d'analyse de fichiers binaires + * modrm.h - prototypes pour les opérandes de type mod/rm + * + * Copyright (C) 2012 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 _ARCH_X86_OPERANDS_MODRM_H +#define _ARCH_X86_OPERANDS_MODRM_H + + +#include <glib-object.h> + + +#include "../registers.h" +#include "../../immediate.h" +#include "../../operand.h" +#include "../../../common/endianness.h" + + + +#define G_TYPE_X86_MOD_RM_OPERAND g_x86_mod_rm_operand_get_type() +#define G_X86_MOD_RM_OPERAND(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), g_x86_mod_rm_operand_get_type(), GX86ModRMOperand)) +#define G_IS_X86_MOD_RM_OPERAND(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), g_x86_mod_rm_operand_get_type())) +#define G_X86_MOD_RM_OPERAND_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), G_TYPE_X86_MOD_RM_OPERAND, GX86ModRMOperandClass)) +#define G_IS_X86_MOD_RM_OPERAND_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), G_TYPE_X86_MOD_RM_OPERAND)) +#define G_X86_MOD_RM_OPERAND_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), G_TYPE_X86_MOD_RM_OPERAND, GX86ModRMOperandClass)) + + +/* Définition d'un opérande x86 de type ModRM (instance) */ +typedef struct _GX86ModRMOperand GX86ModRMOperand; + +/* Définition d'un opérande x86 de type ModRM (classe) */ +typedef struct _GX86ModRMOperandClass GX86ModRMOperandClass; + + +/* Indique le type défini par la GLib pour un opérande x86 de type ModRM. */ +GType g_x86_mod_rm_operand_get_type(void); + +/* Crée un opérande x86 de type ModRM. */ +GArchOperand *g_x86_mod_rm_operand_new(const bin_t *, off_t *, off_t, MemoryDataSize); + +/* Fournit l'indice et l'échelle d'un opérande x86 ModRM. */ +void g_x86_mod_rm_operand_get_scale_and_index(const GX86ModRMOperand *operand, uint8_t *, const GX86Register **); + +/* Fournit le registre de base d'un opérande x86 ModRM. */ +const GX86Register *g_x86_mod_rm_operand_get_base(const GX86ModRMOperand *); + +/* Fournit le décallage supplémentaire d'un opérande x86 ModRM. */ +const GImmOperand *g_x86_mod_rm_operand_get_displacement(const GX86ModRMOperand *); + + + +#endif /* _ARCH_X86_OPERANDS_MODRM_H */ diff --git a/src/arch/x86/operands/moffs.c b/src/arch/x86/operands/moffs.c new file mode 100644 index 0000000..3754e79 --- /dev/null +++ b/src/arch/x86/operands/moffs.c @@ -0,0 +1,189 @@ + +/* OpenIDA - Outil d'analyse de fichiers binaires + * moffs.c - opérandes d'emplacements mémoire + * + * Copyright (C) 2012 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 "moffs.h" + + +#include "../../immediate.h" +#include "../../operand-int.h" + + + +/* Définition d'un opérande visant un emplacement mémoire x86 (instance) */ +struct _GX86MOffsOperand +{ + GArchOperand parent; /* Instance parente */ + + GImmOperand *offset; /* Adresse mémoire visée */ + +}; + +/* Définition d'un opérande visant un emplacement mémoire x86 (classe) */ +struct _GX86MOffsOperandClass +{ + GArchOperandClass parent; /* Classe parente */ + +}; + + +/* Initialise la classe des opérandes d'emplacement mémoire x86. */ +static void g_x86_moffs_operand_class_init(GX86MOffsOperandClass *); + +/* Initialise une instance d'opérande d'emplacement mémoire x86. */ +static void g_x86_moffs_operand_init(GX86MOffsOperand *); + +/* Ajoute du texte simple à un fichier ouvert en écriture. */ +static void g_x86_moffs_operand_add_text(const GX86MOffsOperand *, GRenderingOptions *, MainRendering, FILE *); + +/* Ajoute à un tampon GLib le contenu de l'instance spécifiée. */ +static void g_x86_moffs_operand_to_buffer(const GX86MOffsOperand *, GBufferLine *, GRenderingOptions *); + + + +/* Indique le type défini par la GLib pour un opérande d'emplacement mémoire x86. */ +G_DEFINE_TYPE(GX86MOffsOperand, g_x86_moffs_operand, G_TYPE_ARCH_OPERAND); + + +/****************************************************************************** +* * +* Paramètres : klass = classe à initialiser. * +* * +* Description : Initialise la classe des opérandes d'emplacement mémoire x86.* +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_x86_moffs_operand_class_init(GX86MOffsOperandClass *klass) +{ + +} + + +/****************************************************************************** +* * +* Paramètres : operand = instance à initialiser. * +* * +* Description : Initialise une instance d'opérande d'emplacement mémoire x86.* +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_x86_moffs_operand_init(GX86MOffsOperand *operand) +{ + GContentExporter *parent; /* Instance parente */ + + parent = G_CONTENT_EXPORTER(operand); + + parent->add_text = (add_text_fc)g_x86_moffs_operand_add_text; + parent->export_buffer = (export_buffer_fc)g_x86_moffs_operand_to_buffer; + +} + + +/****************************************************************************** +* * +* Paramètres : data = flux de données à analyser. * +* pos = position courante dans ce flux. [OUT] * +* len = taille totale des données à analyser. * +* size = taille de l'opérande, et donc du registre. * +* * +* Description : Crée un opérande d'emplacement mémoire x86. * +* * +* Retour : Opérande mis en place. * +* * +* Remarques : - * +* * +******************************************************************************/ + +GArchOperand *g_x86_moffs_operand_new(const bin_t *data, off_t *pos, off_t len, MemoryDataSize size) +{ + GX86MOffsOperand *result; /* Structure à retourner */ + GImmOperand *offset; /* Emplacement lu */ + + result = NULL; + + offset = g_imm_operand_new_from_data(size, data, pos, len, SRE_LITTLE /* FIXME */); + + if (offset != NULL) + { + result = g_object_new(G_TYPE_X86_MOFFS_OPERAND, NULL); + result->offset = offset; + } + + return G_ARCH_OPERAND(result); + +} + + +/****************************************************************************** +* * +* Paramètres : operand = opérande à transcrire. * +* options = options de rendu. * +* rendering = support effectif final des lignes de code. * +* stream = flux ouvert en écriture. * +* * +* Description : Ajoute du texte simple à un fichier ouvert en écriture. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_x86_moffs_operand_add_text(const GX86MOffsOperand *operand, GRenderingOptions *options, MainRendering rendering, FILE *stream) +{ + g_content_exporter_insert_text(G_CONTENT_EXPORTER(operand), stream, "ds:", 3, RTT_SEGMENT); + + g_content_exporter_add_text(G_CONTENT_EXPORTER(operand->offset), options, rendering, stream); + +} + + +/****************************************************************************** +* * +* Paramètres : operand = opérande à transcrire. * +* buffer = espace où placer ledit contenu. * +* options = options de rendu. * +* * +* Description : Ajoute à un tampon GLib le contenu de l'instance spécifiée. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_x86_moffs_operand_to_buffer(const GX86MOffsOperand *operand, GBufferLine *buffer, GRenderingOptions *options) +{ + g_content_exporter_insert_into_buffer(G_CONTENT_EXPORTER(operand), buffer, BLC_ASSEMBLY, + "ds:", 3, RTT_SEGMENT); + + g_content_exporter_to_buffer(G_CONTENT_EXPORTER(operand->offset), buffer, options); + +} diff --git a/src/arch/x86/operands/moffs.h b/src/arch/x86/operands/moffs.h new file mode 100644 index 0000000..b4f8889 --- /dev/null +++ b/src/arch/x86/operands/moffs.h @@ -0,0 +1,59 @@ + +/* OpenIDA - Outil d'analyse de fichiers binaires + * moffs.h - prototypes pour les opérandes d'emplacements mémoire + * + * Copyright (C) 2012 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 _ARCH_X86_OPERANDS_MOFFS_H +#define _ARCH_X86_OPERANDS_MOFFS_H + + +#include <glib-object.h> + + +#include "../../operand.h" +#include "../../../common/endianness.h" + + + +#define G_TYPE_X86_MOFFS_OPERAND g_x86_moffs_operand_get_type() +#define G_X86_MOFFS_OPERAND(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), g_x86_moffs_operand_get_type(), GX86MoffsOperand)) +#define G_IS_X86_MOFFS_OPERAND(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), g_x86_moffs_operand_get_type())) +#define G_X86_MOFFS_OPERAND_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), G_TYPE_X86_MOFFS_OPERAND, GX86MoffsOperandClass)) +#define G_IS_X86_MOFFS_OPERAND_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), G_TYPE_X86_MOFFS_OPERAND)) +#define G_X86_MOFFS_OPERAND_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), G_TYPE_X86_MOFFS_OPERAND, GX86MoffsOperandClass)) + + +/* Définition d'un opérande visant un emplacement mémoire x86 (instance) */ +typedef struct _GX86MOffsOperand GX86MOffsOperand; + +/* Définition d'un opérande visant un emplacement mémoire x86 (classe) */ +typedef struct _GX86MOffsOperandClass GX86MOffsOperandClass; + + +/* Indique le type défini par la GLib pour un opérande d'emplacement mémoire x86. */ +GType g_x86_moffs_operand_get_type(void); + +/* Crée un opérande d'emplacement mémoire x86. */ +GArchOperand *g_x86_moffs_operand_new(const bin_t *, off_t *, off_t, MemoryDataSize); + + + +#endif /* _ARCH_X86_OPERANDS_MOFFS_H */ diff --git a/src/arch/x86/operands/register.c b/src/arch/x86/operands/register.c new file mode 100644 index 0000000..a70ea60 --- /dev/null +++ b/src/arch/x86/operands/register.c @@ -0,0 +1,265 @@ + +/* OpenIDA - Outil d'analyse de fichiers binaires + * register.c - opérandes visant un registre x86 + * + * Copyright (C) 2012 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 "register.h" + + +#include "../../operand-int.h" + + + +/* Définition d'un opérande visant un registre x86 (instance) */ +struct _GX86RegisterOperand +{ + GArchOperand parent; /* Instance parente */ + + GX86Register *reg; /* Registre représenté */ + +}; + + +/* Définition d'un opérande visant un registre x86 (classe) */ +struct _GX86RegisterOperandClass +{ + GArchOperandClass parent; /* Classe parente */ + +}; + + +/* Initialise la classe des opérandes de registre x86. */ +static void g_x86_register_operand_class_init(GX86RegisterOperandClass *); + +/* Initialise une instance d'opérande de registre x86. */ +static void g_x86_register_operand_init(GX86RegisterOperand *); + +/* Ajoute du texte simple à un fichier ouvert en écriture. */ +static void g_x86_register_operand_add_text(const GX86RegisterOperand *, GRenderingOptions *, MainRendering, FILE *); + +/* Ajoute à un tampon GLib le contenu de l'instance spécifiée. */ +static void g_x86_register_operand_to_buffer(const GX86RegisterOperand *, GBufferLine *, GRenderingOptions *); + + + +/* Indique le type défini par la GLib pour un opérande de registre x86. */ +G_DEFINE_TYPE(GX86RegisterOperand, g_x86_register_operand, G_TYPE_ARCH_OPERAND); + + +/****************************************************************************** +* * +* Paramètres : klass = classe à initialiser. * +* * +* Description : Initialise la classe des opérandes de registre x86. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_x86_register_operand_class_init(GX86RegisterOperandClass *klass) +{ + +} + + +/****************************************************************************** +* * +* Paramètres : operand = instance à initialiser. * +* * +* Description : Initialise une instance d'opérande de registre x86. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_x86_register_operand_init(GX86RegisterOperand *operand) +{ + GContentExporter *parent; /* Instance parente */ + + parent = G_CONTENT_EXPORTER(operand); + + parent->add_text = (add_text_fc)g_x86_register_operand_add_text; + parent->export_buffer = (export_buffer_fc)g_x86_register_operand_to_buffer; + +} + + +/****************************************************************************** +* * +* Paramètres : data = flux de données à analyser. * +* pos = position courante dans ce flux. [OUT] * +* len = taille totale des données à analyser. * +* size = taille de l'opérande, et donc du registre. * +* base = indice du premier registre. * +* * +* Description : Crée un opérande visant un registre x86. * +* * +* Retour : Opérande mis en place. * +* * +* Remarques : - * +* * +******************************************************************************/ + +GArchOperand *g_x86_register_operand_new_from_opcode(const bin_t *data, off_t *pos, off_t len, MemoryDataSize size, bin_t base) +{ + GX86RegisterOperand *result; /* Structure à retourner */ + GX86Register *reg; /* Registre lu */ + + reg = g_x86_register_new(size, data[*pos] - base); + + if (reg != NULL) + { + (*pos)++; + + result = g_object_new(G_TYPE_X86_REGISTER_OPERAND, NULL); + + result->reg = reg; + + } + else result = NULL; + + return G_ARCH_OPERAND(result); + +} + + +/****************************************************************************** +* * +* Paramètres : data = flux de données à analyser. * +* pos = position courante dans ce flux. [OUT] * +* len = taille totale des données à analyser. * +* size = taille de l'opérande, et donc du registre. * +* first = indique la partie du ModR/M à traiter. * +* * +* Description : Crée un opérande visant un registre x86. * +* * +* Retour : Opérande mis en place. * +* * +* Remarques : - * +* * +******************************************************************************/ + +GArchOperand *g_x86_register_operand_new_from_mod_rm(const bin_t *data, off_t *pos, off_t len, MemoryDataSize size, bool first) +{ + GX86RegisterOperand *result; /* Structure à retourner */ + bin_t index; /* Registre lu */ + GX86Register *reg; /* Registre créé */ + + if (first) index = data[*pos] & 0x07; + else index = (data[*pos] & 0x38) >> 3; + + reg = g_x86_register_new(size, index); + + if (reg != NULL) + { + (*pos)++; + + result = g_object_new(G_TYPE_X86_REGISTER_OPERAND, NULL); + + result->reg = reg; + + } + else result = NULL; + + return G_ARCH_OPERAND(result); + +} + + +/****************************************************************************** +* * +* Paramètres : index = indice du registre visé. * +* size = taille de l'opérande, et donc du registre. * +* * +* Description : Crée un opérande visant un registre x86 donné. * +* * +* Retour : Opérande mis en place. * +* * +* Remarques : - * +* * +******************************************************************************/ + +GArchOperand *g_x86_register_operand_new_from_index(bin_t index, MemoryDataSize size) +{ + GX86RegisterOperand *result; /* Structure à retourner */ + GX86Register *reg; /* Registre lu */ + + reg = g_x86_register_new(size, index); + + if (reg != NULL) + { + result = g_object_new(G_TYPE_X86_REGISTER_OPERAND, NULL); + + result->reg = reg; + + } + else result = NULL; + + return G_ARCH_OPERAND(result); + +} + + +/****************************************************************************** +* * +* Paramètres : operand = opérande à transcrire. * +* options = options de rendu. * +* rendering = support effectif final des lignes de code. * +* stream = flux ouvert en écriture. * +* * +* Description : Ajoute du texte simple à un fichier ouvert en écriture. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_x86_register_operand_add_text(const GX86RegisterOperand *operand, GRenderingOptions *options, MainRendering rendering, FILE *stream) +{ + g_content_exporter_add_text(G_CONTENT_EXPORTER(operand->reg), options, rendering, stream); + +} + + +/****************************************************************************** +* * +* Paramètres : operand = opérande à transcrire. * +* buffer = espace où placer ledit contenu. * +* options = options de rendu. * +* * +* Description : Ajoute à un tampon GLib le contenu de l'instance spécifiée. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_x86_register_operand_to_buffer(const GX86RegisterOperand *operand, GBufferLine *buffer, GRenderingOptions *options) +{ + g_content_exporter_to_buffer(G_CONTENT_EXPORTER(operand->reg), buffer, options); + +} diff --git a/src/arch/x86/operands/register.h b/src/arch/x86/operands/register.h new file mode 100644 index 0000000..11bc87e --- /dev/null +++ b/src/arch/x86/operands/register.h @@ -0,0 +1,66 @@ + +/* OpenIDA - Outil d'analyse de fichiers binaires + * register.h - prototypes pour les opérandes visant un registre x86 + * + * Copyright (C) 2012 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 _ARCH_X86_OPERANDS_REGISTER_H +#define _ARCH_X86_OPERANDS_REGISTER_H + + +#include <glib-object.h> + + +#include "../registers.h" +#include "../../operand.h" +#include "../../../common/endianness.h" + + + +#define G_TYPE_X86_REGISTER_OPERAND g_x86_register_operand_get_type() +#define G_X86_REGISTER_OPERAND(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), g_x86_register_operand_get_type(), GX86RegisterOperand)) +#define G_IS_X86_REGISTER_OPERAND(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), g_x86_register_operand_get_type())) +#define G_X86_REGISTER_OPERAND_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), G_TYPE_X86_REGISTER_OPERAND, GX86RegisterOperandClass)) +#define G_IS_X86_REGISTER_OPERAND_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), G_TYPE_X86_REGISTER_OPERAND)) +#define G_X86_REGISTER_OPERAND_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), G_TYPE_X86_REGISTER_OPERAND, GX86RegisterOperandClass)) + + +/* Définition d'un opérande visant un registre x86 (instance) */ +typedef struct _GX86RegisterOperand GX86RegisterOperand; + +/* Définition d'un opérande visant un registre x86 (classe) */ +typedef struct _GX86RegisterOperandClass GX86RegisterOperandClass; + + +/* Indique le type défini par la GLib pour un opérande de registre x86. */ +GType g_x86_register_operand_get_type(void); + +/* Crée un opérande visant un registre x86. */ +GArchOperand *g_x86_register_operand_new_from_opcode(const bin_t *, off_t *, off_t, MemoryDataSize, bin_t); + +/* Crée un opérande visant un registre x86. */ +GArchOperand *g_x86_register_operand_new_from_mod_rm(const bin_t *, off_t *, off_t, MemoryDataSize, bool); + +/* Crée un opérande visant un registre x86 donné. */ +GArchOperand *g_x86_register_operand_new_from_index(bin_t, MemoryDataSize); + + + +#endif /* _ARCH_X86_OPERANDS_REGISTER_H */ diff --git a/src/arch/x86/operands/relative.c b/src/arch/x86/operands/relative.c new file mode 100644 index 0000000..3235a0d --- /dev/null +++ b/src/arch/x86/operands/relative.c @@ -0,0 +1,221 @@ + +/* OpenIDA - Outil d'analyse de fichiers binaires + * relative.c - opérandes d'adresses relatives + * + * Copyright (C) 2012 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 "relative.h" + + +#include "../../operand-int.h" + + + +/* Définition d'un opérande x86 d'adresse relative (instance) */ +struct _GX86RelativeOperand +{ + GArchOperand parent; /* Instance parente */ + + GImmOperand *immediate; /* Adresse visée reconstituée */ + +}; + +/* Définition d'un opérande x86 d'adresse relative (classe) */ +struct _GX86RelativeOperandClass +{ + GArchOperandClass parent; /* Classe parente */ + +}; + + +/* Initialise la classe des opérandes x86 d'adresse relative. */ +static void g_x86_relative_operand_class_init(GX86RelativeOperandClass *); + +/* Initialise une instance d'opérande x86 d'adresse relative. */ +static void g_x86_relative_operand_init(GX86RelativeOperand *); + +/* Ajoute du texte simple à un fichier ouvert en écriture. */ +static void g_x86_relative_operand_add_text(const GX86RelativeOperand *, GRenderingOptions *, MainRendering, FILE *); + +/* Ajoute à un tampon GLib le contenu de l'instance spécifiée. */ +static void g_x86_relative_operand_to_buffer(const GX86RelativeOperand *, GBufferLine *, GRenderingOptions *); + + + +/* Indique le type défini par la GLib pour un opérande x86 d'adresse relative. */ +G_DEFINE_TYPE(GX86RelativeOperand, g_x86_relative_operand, G_TYPE_ARCH_OPERAND); + + +/****************************************************************************** +* * +* Paramètres : klass = classe à initialiser. * +* * +* Description : Initialise la classe des opérandes x86 d'adresse relative. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_x86_relative_operand_class_init(GX86RelativeOperandClass *klass) +{ + +} + + +/****************************************************************************** +* * +* Paramètres : operand = instance à initialiser. * +* * +* Description : Initialise une instance d'opérande x86 d'adresse relative. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_x86_relative_operand_init(GX86RelativeOperand *operand) +{ + GContentExporter *parent; /* Instance parente */ + + parent = G_CONTENT_EXPORTER(operand); + + parent->add_text = (add_text_fc)g_x86_relative_operand_add_text; + parent->export_buffer = (export_buffer_fc)g_x86_relative_operand_to_buffer; + +} + + +/****************************************************************************** +* * +* Paramètres : data = flux de données à analyser. * +* pos = position courante dans ce flux. [OUT] * +* len = taille totale des données à analyser. * +* size = taille de l'opérande, et donc du registre. * +* base = adresse de référence pour le calcul. * +* * +* Description : Crée un opérande X86 d'adresse relative. * +* * +* Retour : Opérande mis en place. * +* * +* Remarques : - * +* * +******************************************************************************/ + +GArchOperand *g_x86_relative_operand_new(const bin_t *data, off_t *pos, off_t len, MemoryDataSize size, vmpa_t base) +{ + GX86RelativeOperand *result; /* Structure à retourner */ + off_t init_pos; /* Position avant lecture */ + int8_t val8; /* Valeur sur 8 bits */ + int16_t val16; /* Valeur sur 16 bits */ + int32_t val32; /* Valeur sur 32 bits */ + vmpa_t address; /* Adresse finale visée */ + + init_pos = *pos; + + switch (size) + { + case MDS_8_BITS_UNSIGNED: + read_s8(&val8, data, pos, len, SRE_LITTLE /* FIXME */); + address = base + (*pos - init_pos) + val8; + break; + case MDS_16_BITS_UNSIGNED: + read_s16(&val16, data, pos, len, SRE_LITTLE /* FIXME */); + address = base + (*pos - init_pos) + val16; + break; + case MDS_32_BITS_UNSIGNED: + read_s32(&val32, data, pos, len, SRE_LITTLE /* FIXME */); + address = base + (*pos - init_pos) + val32; + break; + default: + return NULL; + break; + } + + result = g_object_new(G_TYPE_X86_RELATIVE_OPERAND, NULL); + result->immediate = g_imm_operand_new_from_value(MDS_32_BITS/*FIXME*/, (uint32_t)address/* FIXME */); + + return G_ARCH_OPERAND(result); + +} + + +/****************************************************************************** +* * +* Paramètres : operand = opérande à transcrire. * +* options = options de rendu. * +* rendering = support effectif final des lignes de code. * +* stream = flux ouvert en écriture. * +* * +* Description : Ajoute du texte simple à un fichier ouvert en écriture. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_x86_relative_operand_add_text(const GX86RelativeOperand *operand, GRenderingOptions *options, MainRendering rendering, FILE *stream) +{ + g_content_exporter_add_text(G_CONTENT_EXPORTER(operand->immediate), options, rendering, stream); + +} + + +/****************************************************************************** +* * +* Paramètres : operand = opérande à transcrire. * +* buffer = espace où placer ledit contenu. * +* options = options de rendu. * +* * +* Description : Ajoute à un tampon GLib le contenu de l'instance spécifiée. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_x86_relative_operand_to_buffer(const GX86RelativeOperand *operand, GBufferLine *buffer, GRenderingOptions *options) +{ + g_content_exporter_to_buffer(G_CONTENT_EXPORTER(operand->immediate), buffer, options); + +} + + +/****************************************************************************** +* * +* Paramètres : operand = opérande à traiter. * +* * +* Description : Fournit l'adresse représentée par une opérande X86. * +* * +* Retour : Valeur portée par l'opérande. * +* * +* Remarques : - * +* * +******************************************************************************/ + +const GImmOperand *g_x86_relative_operand_get_value(const GX86RelativeOperand *operand) +{ + return operand->immediate; + +} diff --git a/src/arch/x86/operands/relative.h b/src/arch/x86/operands/relative.h new file mode 100644 index 0000000..083444a --- /dev/null +++ b/src/arch/x86/operands/relative.h @@ -0,0 +1,63 @@ + +/* OpenIDA - Outil d'analyse de fichiers binaires + * relative.h - prototypes pour les opérandes d'adresses relatives + * + * Copyright (C) 2012 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 _ARCH_X86_OPERANDS_RELATIVE_H +#define _ARCH_X86_OPERANDS_RELATIVE_H + + +#include <glib-object.h> + + +#include "../../immediate.h" +#include "../../operand.h" +#include "../../../common/endianness.h" + + + +#define G_TYPE_X86_RELATIVE_OPERAND g_x86_relative_operand_get_type() +#define G_X86_RELATIVE_OPERAND(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), g_x86_relative_operand_get_type(), GX86RelativeOperand)) +#define G_IS_X86_RELATIVE_OPERAND(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), g_x86_relative_operand_get_type())) +#define G_X86_RELATIVE_OPERAND_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), G_TYPE_X86_RELATIVE_OPERAND, GX86RelativeOperandClass)) +#define G_IS_X86_RELATIVE_OPERAND_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), G_TYPE_X86_RELATIVE_OPERAND)) +#define G_X86_RELATIVE_OPERAND_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), G_TYPE_X86_RELATIVE_OPERAND, GX86RelativeOperandClass)) + + +/* Définition d'un opérande x86 d'adresse relative (instance) */ +typedef struct _GX86RelativeOperand GX86RelativeOperand; + +/* Définition d'un opérande x86 d'adresse relative (classe) */ +typedef struct _GX86RelativeOperandClass GX86RelativeOperandClass; + + +/* Indique le type défini par la GLib pour un opérande x86 d'adresse relative. */ +GType g_x86_relative_operand_get_type(void); + +/* Crée un opérande X86 d'adresse relative. */ +GArchOperand *g_x86_relative_operand_new(const bin_t *, off_t *, off_t, MemoryDataSize, vmpa_t); + +/* Fournit l'adresse représentée par une opérande X86. */ +const GImmOperand *g_x86_relative_operand_get_value(const GX86RelativeOperand *); + + + +#endif /* _ARCH_X86_OPERANDS_RELATIVE_H */ |