diff options
Diffstat (limited to 'src/format/mangling/dex')
| -rw-r--r-- | src/format/mangling/dex/Makefile.am | 46 | ||||
| -rw-r--r-- | src/format/mangling/dex/context.c | 154 | ||||
| -rw-r--r-- | src/format/mangling/dex/context.h | 52 | ||||
| -rw-r--r-- | src/format/mangling/dex/shorty_gram.y | 138 | ||||
| -rw-r--r-- | src/format/mangling/dex/shorty_tok.l | 28 | ||||
| -rw-r--r-- | src/format/mangling/dex/type_gram.y | 149 | ||||
| -rw-r--r-- | src/format/mangling/dex/type_tok.l | 37 | 
7 files changed, 604 insertions, 0 deletions
| diff --git a/src/format/mangling/dex/Makefile.am b/src/format/mangling/dex/Makefile.am new file mode 100644 index 0000000..bdcbf8c --- /dev/null +++ b/src/format/mangling/dex/Makefile.am @@ -0,0 +1,46 @@ + +BUILT_SOURCES = libformatmanglingdexshorty_la-shorty_gram.h libformatmanglingdextype_la-type_gram.h + +AM_YFLAGS = -d + +noinst_LTLIBRARIES = libformatmanglingdex.la libformatmanglingdexshorty.la libformatmanglingdextype.la + +libformatmanglingdex_la_SOURCES =		\ +	context.h context.c + +libformatmanglingdex_la_LDFLAGS =  + +libformatmanglingdex_la_LIBADD =		\ +	libformatmanglingdexshorty.la		\ +	libformatmanglingdextype.la + + +libformatmanglingdexshorty_la_SOURCES =	\ +	shorty_gram.y						\ +	shorty_tok.l + +libformatmanglingdexshorty_la_YFLAGS = -d -p shorty_ -o y.tab.c + +libformatmanglingdexshorty_la_LFLAGS = -P shorty_ -o lex.yy.c + + +libformatmanglingdextype_la_SOURCES =	\ +	type_gram.y						\ +	type_tok.l + +libformatmanglingdextype_la_YFLAGS = -d -p type_ -o y.tab.c + +libformatmanglingdextype_la_LFLAGS = -P type_ -o lex.yy.c + + +AM_CPPFLAGS = $(LIBGTK_CFLAGS) $(LIBXML_CFLAGS) + +AM_CFLAGS = $(DEBUG_CFLAGS) $(WARNING_FLAGS) $(COMPLIANCE_FLAGS) + + +# Automake fait les choses à moitié +CLEANFILES = \ +	libformatmanglingdexshorty_la-shorty_gram.h libformatmanglingdexshorty_la-shorty_gram.c \ +	libformatmanglingdexshorty_la-shorty_tok.c \ +	libformatmanglingdextype_la-type_gram.h libformatmanglingdextype_la-type_gram.c \ +	libformatmanglingdextype_la-type_tok.c diff --git a/src/format/mangling/dex/context.c b/src/format/mangling/dex/context.c new file mode 100644 index 0000000..6fc12d4 --- /dev/null +++ b/src/format/mangling/dex/context.c @@ -0,0 +1,154 @@ + +/* Chrysalide - Outil d'analyse de fichiers binaires + * context.c - contextes de décodage DEX + * + * Copyright (C) 2015 Cyrille Bagard + * + *  This file is part of Chrysalide. + * + *  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 "context.h" + + +#include "../context-int.h" + + + +/* Contexte de décodage DEX (instance) */ +struct _GDexDemangler +{ +    GDemanglingContext parent;              /* A laisser en premier        */ + +}; + +/* Contexte de décodage DEX (classe) */ +struct _GDexDemanglerClass +{ +    GDemanglingContextClass parent;         /* A laisser en premier        */ + +}; + + +/* Initialise la classe des contextes de décodage DEX. */ +static void g_dex_demangler_class_init(GDexDemanglerClass *); + +/* Initialise une instance de contexte pour décodage DEX. */ +static void g_dex_demangler_init(GDexDemangler *); + +/* Supprime toutes les références externes. */ +static void g_dex_demangler_dispose(GDexDemangler *); + +/* Procède à la libération totale de la mémoire. */ +static void g_dex_demangler_finalize(GDexDemangler *); + + +/* Procède au décodage d'une chaîne de caractères. */ +extern bool demangle_dex_routine(GDexDemangler *, const char *); + +/* Procède au décodage d'une chaîne de caractères. */ +extern bool demangle_dex_type(GDexDemangler *, const char *); + + + +/* Indique le type défini pour un contexte de décodage DEX. */ +G_DEFINE_TYPE(GDexDemangler, g_dex_demangler, G_TYPE_DEMANGLING_CONTEXT); + + +/****************************************************************************** +*                                                                             * +*  Paramètres  : klass = classe à initialiser.                                * +*                                                                             * +*  Description : Initialise la classe des contextes de décodage DEX.          * +*                                                                             * +*  Retour      : -                                                            * +*                                                                             * +*  Remarques   : -                                                            * +*                                                                             * +******************************************************************************/ + +static void g_dex_demangler_class_init(GDexDemanglerClass *klass) +{ +    GObjectClass *object;                   /* Autre version de la classe  */ +    GDemanglingContextClass *context;       /* Version parente             */ + +    object = G_OBJECT_CLASS(klass); + +    object->dispose = (GObjectFinalizeFunc/* ! */)g_dex_demangler_dispose; +    object->finalize = (GObjectFinalizeFunc)g_dex_demangler_finalize; + +    context = G_DEMANGLING_CONTEXT_CLASS(klass); + +    context->demangle_type = (demangle_fc)demangle_dex_type; +    context->demangle_routine = (demangle_fc)demangle_dex_routine; + +} + + +/****************************************************************************** +*                                                                             * +*  Paramètres  : demangler = instance à initialiser.                          * +*                                                                             * +*  Description : Initialise une instance de contexte pour décodage DEX.       * +*                                                                             * +*  Retour      : -                                                            * +*                                                                             * +*  Remarques   : -                                                            * +*                                                                             * +******************************************************************************/ + +static void g_dex_demangler_init(GDexDemangler *demangler) +{ + +} + + +/****************************************************************************** +*                                                                             * +*  Paramètres  : demangler = instance d'objet GLib à traiter.                 * +*                                                                             * +*  Description : Supprime toutes les références externes.                     * +*                                                                             * +*  Retour      : -                                                            * +*                                                                             * +*  Remarques   : -                                                            * +*                                                                             * +******************************************************************************/ + +static void g_dex_demangler_dispose(GDexDemangler *demangler) +{ +    G_OBJECT_CLASS(g_dex_demangler_parent_class)->dispose(G_OBJECT(demangler)); + +} + + +/****************************************************************************** +*                                                                             * +*  Paramètres  : demangler = instance d'objet GLib à traiter.                 * +*                                                                             * +*  Description : Procède à la libération totale de la mémoire.                * +*                                                                             * +*  Retour      : -                                                            * +*                                                                             * +*  Remarques   : -                                                            * +*                                                                             * +******************************************************************************/ + +static void g_dex_demangler_finalize(GDexDemangler *demangler) +{ +    G_OBJECT_CLASS(g_dex_demangler_parent_class)->finalize(G_OBJECT(demangler)); + +} diff --git a/src/format/mangling/dex/context.h b/src/format/mangling/dex/context.h new file mode 100644 index 0000000..6242b61 --- /dev/null +++ b/src/format/mangling/dex/context.h @@ -0,0 +1,52 @@ + +/* Chrysalide - Outil d'analyse de fichiers binaires + * context.h - prototypes internes liés aux contextes de décodage DEX + * + * Copyright (C) 2015 Cyrille Bagard + * + *  This file is part of Chrysalide. + * + *  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 _FORMAT_MANGLING_DEX_CONTEXT_H +#define _FORMAT_MANGLING_DEX_CONTEXT_H + + +#include <glib-object.h> + + + +#define G_TYPE_DEX_DEMANGLER               g_dex_demangler_get_type() +#define G_DEX_DEMANGLER(obj)               (G_TYPE_CHECK_INSTANCE_CAST((obj), g_dex_demangler_get_type(), GDexDemangler)) +#define G_IS_DEX_DEMANGLER(obj)            (G_TYPE_CHECK_INSTANCE_TYPE((obj), g_dex_demangler_get_type())) +#define G_DEX_DEMANGLER_CLASS(klass)       (G_TYPE_CHECK_CLASS_CAST((klass), G_TYPE_DEX_DEMANGLER, GDexDemanglerClass)) +#define G_IS_DEX_DEMANGLER_CLASS(klass)    (G_TYPE_CHECK_CLASS_TYPE((klass), G_TYPE_DEX_DEMANGLER)) +#define G_DEX_DEMANGLER_GET_CLASS(obj)     (G_TYPE_INSTANCE_GET_CLASS((obj), G_TYPE_DEX_DEMANGLER, GDexDemanglerClass)) + + +/* Contexte de décodage DEX (instance) */ +typedef struct _GDexDemangler GDexDemangler; + +/* Contexte de décodage DEX (classe) */ +typedef struct _GDexDemanglerClass GDexDemanglerClass; + + +/* Indique le type défini pour un contexte de décodage DEX. */ +GType g_dex_demangler_get_type(void); + + + +#endif  /* _FORMAT_MANGLING_DEX_CONTEXT_H */ diff --git a/src/format/mangling/dex/shorty_gram.y b/src/format/mangling/dex/shorty_gram.y new file mode 100644 index 0000000..55d849d --- /dev/null +++ b/src/format/mangling/dex/shorty_gram.y @@ -0,0 +1,138 @@ + +%{ + +#include <stdbool.h> + + +#include "context.h" +#include "../context-int.h" + + + +/* Affiche un message d'erreur concernant l'analyse. */ +static int shorty_error(GDexDemangler *, char *); + +/* Procède au décodage d'une chaîne de caractères. */ +bool demangle_dex_routine(GDexDemangler *, const char *); + + +%} + + +%code requires { + +#include "../../../analysis/types/basic.h" +#include "../../../analysis/types/cse.h" + +} + +%union { + +    GDataType *type;                        /* Type reconstruit            */ + +} + + +%parse-param { GDexDemangler *demangler } + +%token V Z B S C I J F D L + +%type <type> shorty_return_type shorty_field_type + + +%{ + +/* Déclarations issues de l'analyseur syntaxique... */ + +typedef struct yy_buffer_state *YY_BUFFER_STATE; + +extern YY_BUFFER_STATE shorty__scan_string(const char *); +extern void shorty__delete_buffer(YY_BUFFER_STATE); +extern int shorty_lex(void); + +%} + + +%% + + +shorty_descriptor: +    shorty_return_type shorty_field_type_list { +                                                  GBinRoutine *routine; +                                                  routine = G_DEMANGLING_CONTEXT(demangler)->routine; +                                                  g_binary_routine_set_return_type(routine, $1); +                                              } + +shorty_field_type_list: +    /* empty */ +    | shorty_field_type shorty_field_type_list { +                                                   GBinRoutine *routine; +                                                   GBinVariable *var; +                                                   routine = G_DEMANGLING_CONTEXT(demangler)->routine; +                                                   var = g_binary_variable_new($1); +                                                   g_binary_routine_add_arg(routine, var); +                                               } + +shorty_return_type: +    V                                   { $$ = g_basic_type_new(BTP_VOID); } +    | shorty_field_type                 { $$ = $1; } + +shorty_field_type: +    Z                                   { $$ = g_basic_type_new(BTP_BOOL); } +	| B                                 { $$ = g_basic_type_new(BTP_UCHAR); } +	| S                                 { $$ = g_basic_type_new(BTP_SHORT); } +	| C                                 { $$ = g_basic_type_new(BTP_CHAR); } +	| I                                 { $$ = g_basic_type_new(BTP_INT); } +	| J                                 { $$ = g_basic_type_new(BTP_LONG); } +	| F                                 { $$ = g_basic_type_new(BTP_FLOAT); } +    | D                                 { $$ = g_basic_type_new(BTP_DOUBLE); } +    | L                                 { $$ = g_class_enum_type_new(CET_CLASS, ""); } + + +%% + + +/****************************************************************************** +*                                                                             * +*  Paramètres  : demangler = contexte associé à la procédure de décodage.     * +*                msg       = indications humaines sur l'événement.            * +*                                                                             * +*  Description : Affiche un message d'erreur concernant l'analyse.            * +*                                                                             * +*  Retour      : Valeur historique, ignorée.                                  * +*                                                                             * +*  Remarques   : -                                                            * +*                                                                             * +******************************************************************************/ +static int shorty_error(GDexDemangler *demangler, char *msg) +{ +	return -1; + +} + + +/****************************************************************************** +*                                                                             * +*  Paramètres  : demangler = contexte de décodage à utiliser.                 * +*                desc      = chaîne de caractères à décoder.                  * +*                                                                             * +*  Description : Procède au décodage d'une chaîne de caractères.              * +*                                                                             * +*  Retour      : Bilan de l'opération.                                        * +*                                                                             * +*  Remarques   : -                                                            * +*                                                                             * +******************************************************************************/ + +bool demangle_dex_routine(GDexDemangler *demangler, const char *desc) +{ +	YY_BUFFER_STATE buffer;                 /* Tampon pour bison           */ +	int ret;                                /* Bilan de l'appel            */ + +	buffer = shorty__scan_string(desc); +	ret = yyparse(demangler); +	shorty__delete_buffer(buffer); + +    return (ret == 0); + +} diff --git a/src/format/mangling/dex/shorty_tok.l b/src/format/mangling/dex/shorty_tok.l new file mode 100644 index 0000000..92c264a --- /dev/null +++ b/src/format/mangling/dex/shorty_tok.l @@ -0,0 +1,28 @@ + +%{ + +#include "context.h" +#include "libformatmanglingdexshorty_la-shorty_gram.h" + +%} + + +%option noyywrap +%option yylineno +%option nounput +%option noinput + +%% + +"V"                     { return V; } +"Z"                     { return Z; } +"B"                     { return B; } +"S"                     { return S; } +"C"                     { return C; } +"I"                     { return I; } +"J"                     { return J; } +"F"                     { return F; } +"D"                     { return D; } +"L"                     { return L; } + +%% diff --git a/src/format/mangling/dex/type_gram.y b/src/format/mangling/dex/type_gram.y new file mode 100644 index 0000000..1176bd2 --- /dev/null +++ b/src/format/mangling/dex/type_gram.y @@ -0,0 +1,149 @@ + +%{ + +#include <stdbool.h> + + +#include "context.h" +#include "../context-int.h" + + + +/* Affiche un message d'erreur concernant l'analyse. */ +static int type_error(GDexDemangler *, char *); + +/* Procède au décodage d'une chaîne de caractères. */ +bool demangle_dex_type(GDexDemangler *, const char *); + + +%} + + +%code requires { + +#include "../../../analysis/types/basic.h" +#include "../../../analysis/types/cse.h" + +} + +%union { + +    GDataType *type;                        /* Type reconstruit            */ +    size_t adeep;                           /* Dimension d'un tableau      */ +    char *text;                             /* Chaîne de caractères        */ + +} + + +%parse-param { GDexDemangler *demangler } + +%token V Z B S C I J F D +%token ARRAY +%token L SEMICOLON +%token SLASH DOLLAR +%token TEXT + +%type <type> type_descriptor field_type_descriptor non_array_field_type_descriptor full_class_name + +%type <text> TEXT + + +%{ + +/* Déclarations issues de l'analyseur syntaxique... */ + +typedef struct yy_buffer_state *YY_BUFFER_STATE; + +extern YY_BUFFER_STATE type__scan_string(const char *); +extern void type__delete_buffer(YY_BUFFER_STATE); +extern int type_lex(void); + +%} + + +%% + + +input: +    type_descriptor                     { G_DEMANGLING_CONTEXT(demangler)->type = $1; } + +type_descriptor: +    V                                   { $$ = g_basic_type_new(BTP_VOID); } +    | field_type_descriptor             { $$ = $1; } + +field_type_descriptor: +	non_array_field_type_descriptor             { $$ = $1; } +	| ARRAY non_array_field_type_descriptor     { $$ = $2; } + +non_array_field_type_descriptor: +	Z                                   { $$ = g_basic_type_new(BTP_BOOL); } +	| B                                 { $$ = g_basic_type_new(BTP_UCHAR); } +	| S                                 { $$ = g_basic_type_new(BTP_SHORT); } +	| C                                 { $$ = g_basic_type_new(BTP_CHAR); } +	| I                                 { $$ = g_basic_type_new(BTP_INT); } +	| J                                 { $$ = g_basic_type_new(BTP_LONG); } +	| F                                 { $$ = g_basic_type_new(BTP_FLOAT); } +	| D                                 { $$ = g_basic_type_new(BTP_DOUBLE); } +	| L full_class_name SEMICOLON       { $$ = $2; } + +full_class_name: +    TEXT                                { $$ = g_class_enum_type_new(CET_CLASS, $1); } +    | full_class_name SLASH TEXT        { +                                            $$ = g_class_enum_type_new(CET_CLASS, $3); +                                            g_data_type_set_namespace($$, $1); +                                            g_object_unref($1); +                                        } +    | full_class_name DOLLAR TEXT       { +                                            $$ = g_class_enum_type_new(CET_CLASS, $3); +                                            g_data_type_set_namespace($$, $1); +                                            g_object_unref($1); +                                        } + + +%% + + +/****************************************************************************** +*                                                                             * +*  Paramètres  : demangler = contexte associé à la procédure de décodage.     * +*                msg       = indications humaines sur l'événement.            * +*                                                                             * +*  Description : Affiche un message d'erreur concernant l'analyse.            * +*                                                                             * +*  Retour      : Valeur historique, ignorée.                                  * +*                                                                             * +*  Remarques   : -                                                            * +*                                                                             * +******************************************************************************/ +static int type_error(GDexDemangler *demangler, char *msg) +{ +	return -1; + +} + + +/****************************************************************************** +*                                                                             * +*  Paramètres  : demangler = contexte de décodage à utiliser.                 * +*                desc      = chaîne de caractères à décoder.                  * +*                                                                             * +*  Description : Procède au décodage d'une chaîne de caractères.              * +*                                                                             * +*  Retour      : Bilan de l'opération.                                        * +*                                                                             * +*  Remarques   : -                                                            * +*                                                                             * +******************************************************************************/ + +bool demangle_dex_type(GDexDemangler *demangler, const char *desc) +{ +	YY_BUFFER_STATE buffer;                 /* Tampon pour bison           */ +	int ret;                                /* Bilan de l'appel            */ + +	buffer = type__scan_string(desc); +	ret = yyparse(demangler); +	type__delete_buffer(buffer); + +    return (ret == 0); + +} diff --git a/src/format/mangling/dex/type_tok.l b/src/format/mangling/dex/type_tok.l new file mode 100644 index 0000000..7b8a8d3 --- /dev/null +++ b/src/format/mangling/dex/type_tok.l @@ -0,0 +1,37 @@ + +%{ + +#include "context.h" +#include "libformatmanglingdextype_la-type_gram.h" + +%} + + +%option noyywrap +%option yylineno +%option nounput +%option noinput + +%x string + +%% + +"V"                     { return V; } +"Z"                     { return Z; } +"B"                     { return B; } +"S"                     { return S; } +"C"                     { return C; } +"I"                     { return I; } +"J"                     { return J; } +"F"                     { return F; } +"D"                     { return D; } +"L"                     { BEGIN(string); return L; } +"["*                    { type_lval.adeep = strlen(yytext); return ARRAY; } +<string>"/"             { return SLASH; } +<string>"$"             { return DOLLAR; } +<string>";"             { BEGIN(INITIAL); return SEMICOLON; } + +<string>[A-Za-z0-9_-]*  { type_lval.text = yytext; return TEXT; } + + +%% | 
