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Diffstat (limited to 'src/arch/dalvik/specins.c')
-rw-r--r-- | src/arch/dalvik/specins.c | 115 |
1 files changed, 0 insertions, 115 deletions
diff --git a/src/arch/dalvik/specins.c b/src/arch/dalvik/specins.c deleted file mode 100644 index b6a7c4e..0000000 --- a/src/arch/dalvik/specins.c +++ /dev/null @@ -1,115 +0,0 @@ - -/* OpenIDA - Outil d'analyse de fichiers binaires - * specins.c - gestion des instructions spéciales de la VM Dalvik - * - * Copyright (C) 2011 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 "specins.h" - - -#include "../../common/endianness.h" - - - -/****************************************************************************** -* * -* Paramètres : ctx = contexte lié à l'exécution du processeur. * -* data = flux de données à analyser. * -* pos = position courante dans ce flux. * -* len = taille totale des données à analyser. * -* addr = adresse virtuelle de l'instruction. * -* * -* Description : Détermine si du code doit être écarté du traitement. * -* * -* Retour : true si une nouvelle zone de données est à écarter. * -* * -* Remarques : - * -* * -******************************************************************************/ - -bool g_dalvik_guess_special_instruction(GDalvikContext *ctx, const bin_t *data, off_t pos, off_t len, vmpa_t addr) -{ - bool result; /* Bilan à retourner */ - uint16_t ident; /* Valeur lue dans le code */ - vmpa_t start; /* Début d'une zone de données */ - vmpa_t end; /* Fin d'une zone de données */ - uint16_t switch_size; /* Taille du switch considéré */ - uint16_t array_width; /* Taille des éléments */ - uint32_t array_size; /* Taille du tableau */ - - /* Vérification astucieuse et rapide...*/ - if (data[pos] != 0x00 /* DOP_NOP */) return false; - - if (!read_u16(&ident, data, &pos, len, SRE_LITTLE)) - return false; - - start = addr + sizeof(ident); - end = start; - - switch (ident) - { - case DID_PACKED_SWITCH: - - if (!read_u16(&switch_size, data, &pos, len, SRE_LITTLE)) - return false; - - end += sizeof(switch_size) + (1 + switch_size) * sizeof(uint32_t); - - g_dalvik_context_skip_new_area(ctx, start, end); - result = true; - - break; - - case DID_SPARSE_SWITCH: - - if (!read_u16(&switch_size, data, &pos, len, SRE_LITTLE)) - return false; - - end += sizeof(switch_size) + (2 * switch_size) * sizeof(uint32_t); - - g_dalvik_context_skip_new_area(ctx, start, end); - result = true; - - break; - - case DID_FILL_ARRAY_DATA: - - if (!read_u16(&array_width, data, &pos, len, SRE_LITTLE)) - return false; - if (!read_u32(&array_size, data, &pos, len, SRE_LITTLE)) - return false; - - end += sizeof(array_width) + sizeof(array_size) - + array_width * array_size; - - g_dalvik_context_skip_new_area(ctx, start, end); - result = true; - - break; - - default: - result = false; - break; - - } - - return result; - -} |