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/* Chrysalide - Outil d'analyse de fichiers binaires
* annotations.c - enregistrement des annotations liées au format 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 "annotations.h"
#include <malloc.h>
#include <i18n.h>
#include <arch/raw.h>
#include <common/extstr.h>
#include "mclf-int.h"
/* Place des annotations sur un descripteur de segment MCLF. */
static bool annotate_mclf_segment_descriptor(GMCLFFormat *, const char *, vmpa2t *);
/* Place des annotations sur le début commun du binaire MCLF. */
static bool annotate_mclf_intro(GMCLFFormat *, vmpa2t *pos);
/* Place des annotations sur l'en-tête v1 du binaire MCLF. */
static bool annotate_mclf_header_v1(GMCLFFormat *, vmpa2t *pos);
/* Place des annotations sur l'en-tête du segment de code. */
static bool annotate_mclf_text_segment_header(GMCLFFormat *format, vmpa2t *);
/******************************************************************************
* *
* Paramètres : format = description de l'exécutable à compléter. *
* prefix = désignation du segment dans son ensemble. *
* pos = tête de lecture à initialiser / faire évoluer. [OUT]*
* *
* Description : Place des annotations sur un descripteur de segment MCLF. *
* *
* Retour : Bilan de l'opération. *
* *
* Remarques : - *
* *
******************************************************************************/
static bool annotate_mclf_segment_descriptor(GMCLFFormat *format, const char *prefix, vmpa2t *pos)
{
GBinContent *content; /* Contenu binaire à lire */
GArchInstruction *instr; /* Instruction décodée */
char *text; /* Texte construit par étapes */
GDbComment *comment; /* Définition de commentaire */
GBinSymbol *symbol; /* Symbole à intégrer */
content = G_BIN_FORMAT(format)->content;
/* start */
instr = g_raw_instruction_new_array(content, MDS_32_BITS, 1, pos, format->endian);
text = strdup(prefix);
text = stradd(text, _(": start address"));
ADD_RAW_AS_SYM(format, symbol, pos, instr, comment, text);
free(text);
/* len */
instr = g_raw_instruction_new_array(content, MDS_32_BITS, 1, pos, format->endian);
text = strdup(prefix);
text = stradd(text, _(": length"));
ADD_RAW_AS_SYM(format, symbol, pos, instr, comment, text);
free(text);
return true;
}
/******************************************************************************
* *
* Paramètres : format = description de l'exécutable à compléter. *
* pos = tête de lecture à initialiser / faire évoluer. [OUT]*
* *
* Description : Place des annotations sur le début commun du binaire MCLF. *
* *
* Retour : Bilan de l'opération. *
* *
* Remarques : - *
* *
******************************************************************************/
static bool annotate_mclf_intro(GMCLFFormat *format, vmpa2t *pos)
{
GBinContent *content; /* Contenu binaire à lire */
GArchInstruction *instr; /* Instruction décodée */
GArchOperand *operand; /* Opérande à venir modifier */
GDbComment *comment; /* Définition de commentaire */
GBinSymbol *symbol; /* Symbole à intégrer */
content = G_BIN_FORMAT(format)->content;
init_vmpa(pos, 0, format->header.v1.text.start);
/* magic */
instr = g_raw_instruction_new_array(content, MDS_8_BITS, 4, pos, format->endian);
SET_IMM_DISPLAY(instr, operand, 0, IOD_CHAR);
SET_IMM_DISPLAY(instr, operand, 1, IOD_CHAR);
SET_IMM_DISPLAY(instr, operand, 2, IOD_CHAR);
SET_IMM_DISPLAY(instr, operand, 3, IOD_CHAR);
ADD_RAW_AS_SYM(format, symbol, pos, instr, comment, _("MCLF magic number"));
/* version */
instr = g_raw_instruction_new_array(content, MDS_32_BITS, 1, pos, format->endian);
ADD_RAW_AS_SYM(format, symbol, pos, instr, comment, _("Version"));
return true;
}
/******************************************************************************
* *
* Paramètres : format = description de l'exécutable à compléter. *
* pos = tête de lecture à faire évoluer. [OUT] *
* *
* Description : Place des annotations sur l'en-tête v1 du binaire MCLF. *
* *
* Retour : Bilan de l'opération. *
* *
* Remarques : - *
* *
******************************************************************************/
static bool annotate_mclf_header_v1(GMCLFFormat *format, vmpa2t *pos)
{
GBinContent *content; /* Contenu binaire à lire */
GArchInstruction *instr; /* Instruction décodée */
GDbComment *comment; /* Définition de commentaire */
GBinSymbol *symbol; /* Symbole à intégrer */
const char *text; /* Commentaire variable */
content = G_BIN_FORMAT(format)->content;
/* flags */
instr = g_raw_instruction_new_array(content, MDS_32_BITS, 1, pos, format->endian);
ADD_RAW_AS_SYM(format, symbol, pos, instr, comment, _("Service flags"));
/* mem_type */
instr = g_raw_instruction_new_array(content, MDS_32_BITS, 1, pos, format->endian);
switch (format->header.v1.mem_type)
{
case MCLF_MEM_TYPE_INTERNAL_PREFERRED:
text = _("Memory to use: internal if available, otherwise external memory");
break;
case MCLF_MEM_TYPE_INTERNAL:
text = _("Internal memory must be used for executing the service");
break;
case MCLF_MEM_TYPE_EXTERNAL:
text = _("External memory must be used for executing the service");
break;
default:
text = _("Unknown memory usage");
break;
}
ADD_RAW_AS_SYM(format, symbol, pos, instr, comment, text);
/* service_type */
instr = g_raw_instruction_new_array(content, MDS_32_BITS, 1, pos, format->endian);
switch (format->header.v1.service_type)
{
case SERVICE_TYPE_ILLEGAL:
text = _("Service type is invalid");
break;
case SERVICE_TYPE_DRIVER:
text = _("Service is a driver");
break;
case SERVICE_TYPE_SP_TRUSTLET:
text = _("Service is a Trustlet");
break;
case SERVICE_TYPE_SYSTEM_TRUSTLET:
text = _("Service is a system Trustlet");
break;
}
ADD_RAW_AS_SYM(format, symbol, pos, instr, comment, text);
/* num_instances */
instr = g_raw_instruction_new_array(content, MDS_32_BITS, 1, pos, format->endian);
ADD_RAW_AS_SYM(format, symbol, pos, instr, comment, _("Number of instances which can be run simultaneously"));
/* uuid */
instr = g_raw_instruction_new_array(content, MDS_8_BITS, 16, pos, format->endian);
g_raw_instruction_mark_as_padding(G_RAW_INSTRUCTION(instr), true);
ADD_RAW_AS_SYM(format, symbol, pos, instr, comment, _("Loadable service unique identifier (UUID)"));
/* driver_id */
instr = g_raw_instruction_new_array(content, MDS_32_BITS, 1, pos, format->endian);
if (format->header.v1.service_type == SERVICE_TYPE_DRIVER)
text = _("Driver ID");
else
text = _("Unused Driver ID");
ADD_RAW_AS_SYM(format, symbol, pos, instr, comment, _("Number of threads"));
/* num_threads */
instr = g_raw_instruction_new_array(content, MDS_32_BITS, 1, pos, format->endian);
ADD_RAW_AS_SYM(format, symbol, pos, instr, comment, _("Number of threads"));
/* text.start */
instr = g_raw_instruction_new_array(content, MDS_32_BITS, 1, pos, format->endian);
ADD_RAW_AS_SYM(format, symbol, pos, instr, comment, _("Virtual text segment: start address"));
/* text.len */
instr = g_raw_instruction_new_array(content, MDS_32_BITS, 1, pos, format->endian);
ADD_RAW_AS_SYM(format, symbol, pos, instr, comment, _("Virtual text segment: length"));
/* data.start */
instr = g_raw_instruction_new_array(content, MDS_32_BITS, 1, pos, format->endian);
ADD_RAW_AS_SYM(format, symbol, pos, instr, comment, _("Virtual data segment: start address"));
/* data.len */
instr = g_raw_instruction_new_array(content, MDS_32_BITS, 1, pos, format->endian);
ADD_RAW_AS_SYM(format, symbol, pos, instr, comment, _("Virtual data segment: length"));
/* bss_len */
instr = g_raw_instruction_new_array(content, MDS_32_BITS, 1, pos, format->endian);
ADD_RAW_AS_SYM(format, symbol, pos, instr, comment, _("Length of the BSS segment in bytes"));
/* entry */
instr = g_raw_instruction_new_array(content, MDS_32_BITS, 1, pos, format->endian);
ADD_RAW_AS_SYM(format, symbol, pos, instr, comment, _("Virtual start address of service code"));
/* service_version */
instr = g_raw_instruction_new_array(content, MDS_32_BITS, 1, pos, format->endian);
ADD_RAW_AS_SYM(format, symbol, pos, instr, comment, _("Version of the interface the driver exports"));
/* sip_id */
instr = g_raw_instruction_new_array(content, MDS_32_BITS, 1, pos, format->endian);
ADD_RAW_AS_SYM(format, symbol, pos, instr, comment, _("Silicon Provider ID"));
/* sip_data */
instr = g_raw_instruction_new_array(content, MDS_32_BITS, 3, pos, format->endian);
ADD_RAW_AS_SYM(format, symbol, pos, instr, comment, _("Platform specific device identifier"));
/* permitted_hw_cfg */
instr = g_raw_instruction_new_array(content, MDS_32_BITS, 1, pos, format->endian);
ADD_RAW_AS_SYM(format, symbol, pos, instr, comment, _("Configuration which is allowed to execute binary"));
return true;
}
/******************************************************************************
* *
* Paramètres : format = description de l'exécutable à compléter. *
* pos = tête de lecture à initialiser / faire évoluer. [OUT]*
* *
* Description : Place des annotations sur l'en-tête du segment de code. *
* *
* Retour : Bilan de l'opération. *
* *
* Remarques : - *
* *
******************************************************************************/
static bool annotate_mclf_text_segment_header(GMCLFFormat *format, vmpa2t *pos)
{
GBinContent *content; /* Contenu binaire à lire */
vmpa2t old; /* Position précédente */
phys_t diff; /* Décallage entre positions */
GArchInstruction *instr; /* Instruction décodée */
GDbComment *comment; /* Définition de commentaire */
GBinSymbol *symbol; /* Symbole à intégrer */
content = G_BIN_FORMAT(format)->content;
copy_vmpa(&old, pos);
init_vmpa(pos, 0x80, format->header.v1.text.start + 0x80);
diff = compute_vmpa_diff(&old, pos);
printf("DIFF : %u\n", (unsigned int)diff);
instr = g_raw_instruction_new_array(content, MDS_8_BITS, diff, &old, format->endian);
g_raw_instruction_mark_as_padding(G_RAW_INSTRUCTION(instr), true);
ADD_RAW_AS_SYM(format, symbol, &old, instr, comment, _("Padding"));
/* version */
instr = g_raw_instruction_new_array(content, MDS_32_BITS, 1, pos, format->endian);
ADD_RAW_AS_SYM(format, symbol, pos, instr, comment, _("Version of the TextHeader structure"));
/* text_header_len */
instr = g_raw_instruction_new_array(content, MDS_32_BITS, 1, pos, format->endian);
ADD_RAW_AS_SYM(format, symbol, pos, instr, comment, _("Size of this structure"));
/* required_feat */
instr = g_raw_instruction_new_array(content, MDS_32_BITS, 1, pos, format->endian);
ADD_RAW_AS_SYM(format, symbol, pos, instr, comment, _("Features that Mobicore must understand when loading"));
/* mc_lib_entry */
instr = g_raw_instruction_new_array(content, MDS_32_BITS, 1, pos, format->endian);
ADD_RAW_AS_SYM(format, symbol, pos, instr, comment, _("Address for McLib entry"));
/* mc_lib_data */
if (!annotate_mclf_segment_descriptor(format, _("Segment for McLib data"), pos))
return false;
//Segment for McLib data
/* mc_lib_base */
instr = g_raw_instruction_new_array(content, MDS_32_BITS, 1, pos, format->endian);
ADD_RAW_AS_SYM(format, symbol, pos, instr, comment, _("McLib base address"));
/* tl_api_vers */
instr = g_raw_instruction_new_array(content, MDS_32_BITS, 1, pos, format->endian);
ADD_RAW_AS_SYM(format, symbol, pos, instr, comment, _("TlApi version used when building trustlet"));
/* dr_api_vers */
instr = g_raw_instruction_new_array(content, MDS_32_BITS, 1, pos, format->endian);
ADD_RAW_AS_SYM(format, symbol, pos, instr, comment, _("DrApi version used when building trustlet"));
/* ta_properties */
instr = g_raw_instruction_new_array(content, MDS_32_BITS, 1, pos, format->endian);
ADD_RAW_AS_SYM(format, symbol, pos, instr, comment, _("Address of _TA_Properties in the TA"));
return true;
}
/******************************************************************************
* *
* Paramètres : format = description de l'exécutable à compléter. *
* *
* Description : Place des annotations sur le binaire MCLF. *
* *
* Retour : Bilan de l'opération. *
* *
* Remarques : - *
* *
******************************************************************************/
bool annotate_mclf_binary(GMCLFFormat *format)
{
bool result; /* Bilan à retourner */
vmpa2t pos; /* Localisation des symboles */
result = annotate_mclf_intro(format, &pos);
result &= annotate_mclf_header_v1(format, &pos);
result &= annotate_mclf_text_segment_header(format, &pos);
return result;
}
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