diff options
author | Cyrille Bagard <nocbos@gmail.com> | 2015-02-16 07:07:15 (GMT) |
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committer | Cyrille Bagard <nocbos@gmail.com> | 2015-02-16 07:07:15 (GMT) |
commit | 635640a32fecbb9b8a5ddf239b819c022c4b9977 (patch) | |
tree | f8fc69a2c2db411000996146536ca5cc4f54d417 /plugins/mobicore/mclf.c | |
parent | bf879f2562545ab7de23f9d38364b7bd4b43fb2c (diff) |
Added a basic support for Mobicore truslets.
git-svn-id: svn://svn.gna.org/svn/chrysalide/trunk@472 abbe820e-26c8-41b2-8c08-b7b2b41f8b0a
Diffstat (limited to 'plugins/mobicore/mclf.c')
-rw-r--r-- | plugins/mobicore/mclf.c | 258 |
1 files changed, 258 insertions, 0 deletions
diff --git a/plugins/mobicore/mclf.c b/plugins/mobicore/mclf.c new file mode 100644 index 0000000..3fc9e21 --- /dev/null +++ b/plugins/mobicore/mclf.c @@ -0,0 +1,258 @@ + +/* Chrysalide - Outil d'analyse de fichiers binaires + * mclf.c - prise en compte du format binaire 'MCLF' + * + * 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 "mclf.h" + + +#include <i18n.h> + + +#include "annotations.h" +#include "mclf-int.h" + + + +/* Taille maximale d'une description */ +#define MAX_PORTION_DESC 256 + + + +/* Initialise la classe des formats d'exécutables MCLF. */ +static void g_mclf_format_class_init(GMCLFFormatClass *); + +/* Initialise une instance de format d'exécutable MCLF. */ +static void g_mclf_format_init(GMCLFFormat *); + +/* Indique le type d'architecture visée par le format. */ +static const char *g_mclf_format_get_target_machine(const GMCLFFormat *); + +/* Etend la définition des portions au sein d'un binaire. */ +static void g_mclf_format_refine_portions(const GMCLFFormat *, GBinPortion *); + + + +/****************************************************************************** +* * +* Paramètres : content = contenu binaire à parcourir. * +* * +* Description : Indique si le format peut être pris en charge ici. * +* * +* Retour : true si la réponse est positive, false sinon. * +* * +* Remarques : - * +* * +******************************************************************************/ + +bool mclf_is_matching(GBinContent *content) +{ + bool result; /* Bilan à faire connaître */ + vmpa2t addr; /* Tête de lecture initiale */ + char magic[4]; /* Idenfiant standard */ + + init_vmpa(&addr, 0, VMPA_NO_VIRTUAL); + + result = g_binary_content_get_raw(content, &addr, 4, (bin_t *)magic); + + result &= (memcmp(magic, MC_SERVICE_HEADER_MAGIC_STR, 4) == 0); + + return result; + +} + + +/* Indique le type défini pour un format d'exécutable MCLF. */ +G_DEFINE_TYPE(GMCLFFormat, g_mclf_format, G_TYPE_EXE_FORMAT); + + +/****************************************************************************** +* * +* Paramètres : klass = classe à initialiser. * +* * +* Description : Initialise la classe des formats d'exécutables MCLF. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_mclf_format_class_init(GMCLFFormatClass *klass) +{ + +} + + +/****************************************************************************** +* * +* Paramètres : format = instance à initialiser. * +* * +* Description : Initialise une instance de format d'exécutable MCLF. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_mclf_format_init(GMCLFFormat *format) +{ + GExeFormat *exe_format; /* Format parent à constituer */ + + exe_format = G_EXE_FORMAT(format); + + exe_format->get_machine = (get_target_machine_fc)g_mclf_format_get_target_machine; + exe_format->refine_portions = (refine_portions_fc)g_mclf_format_refine_portions; + +} + + +/****************************************************************************** +* * +* Paramètres : content = contenu binaire à parcourir. * +* * +* Description : Prend en charge un nouveau format MCLF. * +* * +* Retour : Adresse de la structure mise en place ou NULL en cas d'échec.* +* * +* Remarques : - * +* * +******************************************************************************/ + +GBinFormat *g_mclf_format_new(GBinContent *content) +{ + GMCLFFormat *result; /* Structure à retourner */ + + result = g_object_new(G_TYPE_MCLF_FORMAT, NULL); + + g_binary_format_set_content(G_BIN_FORMAT(result), content); + + + + if (!read_mclf_header(result, &result->header, result->endian)) + { + /* TODO */ + return NULL; + } + + + + if (!load_mclf_symbols(result)) + { + /* TODO */ + return NULL; + } + + + if (!annotate_mclf_binary(result)) + printf("ERRR\n"); + + return G_BIN_FORMAT(result); + +} + + +/****************************************************************************** +* * +* Paramètres : format = informations chargées à consulter. * +* * +* Description : Indique le type d'architecture visée par le format. * +* * +* Retour : Identifiant de l'architecture ciblée par le format. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static const char *g_mclf_format_get_target_machine(const GMCLFFormat *format) +{ + const char *result; /* Identifiant à retourner */ + + result = "armv7"; + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : format = informations chargées à consulter. * +* raw = portion de binaire brut à raffiner. * +* * +* Description : Etend la définition des portions au sein d'un binaire. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_mclf_format_refine_portions(const GMCLFFormat *format, GBinPortion *raw) +{ + GBinPortion *new; /* Nouvelle portion définie */ + char desc[MAX_PORTION_DESC]; /* Description d'une portion */ + vmpa2t addr; /* Emplacement dans le binaire */ + + /* Segment de code */ + + new = g_binary_portion_new(BPC_CODE); + + sprintf(desc, "%s \"%s\"", _("Segment"), "text"); + g_binary_portion_set_desc(new, desc); + + init_vmpa(&addr, 0, format->header.v1.text.start); + g_binary_portion_set_values(new, &addr, format->header.v1.text.len); + + g_binary_portion_set_rights(new, PAC_WRITE | PAC_EXEC); + + g_binary_portion_include(raw, new); + + /* Segment de données */ + + new = g_binary_portion_new(BPC_DATA); + + sprintf(desc, "%s \"%s\"", _("Segment"), "data"); + g_binary_portion_set_desc(new, desc); + + init_vmpa(&addr, format->header.v1.text.len, format->header.v1.data.start); + g_binary_portion_set_values(new, &addr, format->header.v1.data.len); + + g_binary_portion_set_rights(new, PAC_READ | PAC_WRITE); + + g_binary_portion_include(raw, new); + + /* Signature finale */ + + new = g_binary_portion_new(BPC_DATA); + + sprintf(desc, "%s \"%s\"", _("Segment"), "sig"); + g_binary_portion_set_desc(new, desc); + + init_vmpa(&addr, G_BIN_FORMAT(format)->length - 521, VMPA_NO_VIRTUAL); /* FIXME */ + g_binary_portion_set_values(new, &addr, 521); + + g_binary_portion_set_rights(new, PAC_READ | PAC_WRITE); + + g_binary_portion_include(raw, new); + +} |