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self.c
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self.c
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/*
* Copyright (C) 2013, Spaceman Spiff
*
* This file is part of Open SCE Tool.
*
* Open SCE Tool 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.
*
* Open SCE Tool 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 OpenSCETool. If not, see <http://www.gnu.org/licenses/>.
*/
#include "self.h"
#include "backend.h"
#include "keys.h"
#include "util.h"
#include "npdrm.h"
#include "ids.h"
#include "mt19937.h"
#include "polarssl/sha1.h"
#include "polarssl/aes.h"
#include <zlib.h>
#include <time.h>
#include "ec.h"
static void section_info_adjust_endianness(section_info_t *si);
static void sce_header_adjust_endianness(sce_hdr_t *h) {
h->magic = ES32(h->magic);
h->version = ES32(h->version);
h->key_revision = ES16(h->key_revision);
h->type = ES16(h->type);
h->metadata_offset = ES32(h->metadata_offset);
h->header_len = ES64(h->header_len);
h->data_filesize = ES64(h->data_filesize);
};
static void metadata_header_adjust_endianness(metadata_header_t *h) {
h->signature_input_length = ES64(h->signature_input_length);
h->unknown0 = ES32(h->unknown0);
h->section_count = ES32(h->section_count);
h->key_count = ES32(h->key_count);
h->signature_info_size = ES32(h->signature_info_size);
h->unknown1 = ES32(h->unknown1);
h->unknown2 = ES32(h->unknown2);
}
static void metadata_section_header_adjust_endianness(metadata_section_header_t *h) {
h->data_offset = ES64(h->data_offset);
h->data_size = ES64(h->data_size);
h->type = ES32(h->type);
h->program_idx = ES32(h->program_idx);
h->hashed = ES32(h->hashed);
h->sha1_idx = ES32(h->sha1_idx);
h->encrypted = ES32(h->encrypted);
h->key_idx = ES32(h->key_idx);
h->iv_idx = ES32(h->iv_idx);
h->compressed = ES32(h->compressed);
}
static void sce_extended_header_adjust_endianness(self_extended_header_t *h) {
h->header_type = ES64(h->header_type);
h->appinfo_offset = ES64(h->appinfo_offset);
h->elf_offset = ES64(h->elf_offset);
h->phdr_offset = ES64(h->phdr_offset);
h->shdr_offset = ES64(h->shdr_offset);
h->section_info_offset= ES64(h->section_info_offset);
h->sceversion_offset = ES64(h->sceversion_offset);
h->controlinfo_offset = ES64(h->controlinfo_offset);
h->controlinfo_size = ES64(h->controlinfo_size);
h->padding = ES64(h->padding);
}
static void sce_sdkversion_adjust_endianness(sdkversion_t *h) {
h->type = ES32(h->type);
h->present = ES32(h->present);
h->size = ES32(h->size);
h->unknown3 = ES32(h->unknown3);
}
static void sce_info_header_adjust_endianness(info_header_t *h) {
h->authid = ES64(h->authid);
h->vendor_id = ES32(h->vendor_id);
h->self_type = ES32(h->self_type);
h->version = ES64(h->version);
h->padding = ES64(h->padding);
}
static void capability_flag_payload_adjust_endianness(capability_flag_payload_t *p) {
p->unknown3 = ES64(p->unknown3);
p->unknown4 = ES64(p->unknown4);
p->flags = ES64(p->flags);
p->unknown6 = ES32(p->unknown6);
p->unknown7 = ES32(p->unknown7);
}
static void print_sce_header(FILE *out, sce_hdr_t *h) {
fprintf(out, "[*] SCE Header:\n");
fprintf(out, " Magic 0x%08X [%s]\n", h->magic, (h->magic == SCE_MAGIC)?"OK":"ERROR");
fprintf(out, " Version 0x%08X\n", h->version);
if ( h->key_revision == 0x8000u )
fprintf(out, " Key Revision [DEBUG]\n");
else
fprintf(out, " Key Revision 0x%04X\n", h->key_revision);
const char *header_type = id2name(h->type, sce_types, NULL);
if (header_type) {
printf(" Header Type [%s]\n", header_type);
} else {
printf(" Header Type 0x%04X\n", h->type);
}
fprintf(out, " Metadata Offset 0x%08X\n", h->metadata_offset);
fprintf(out, " Header Length 0x%016" PRIX64 "\n", h->header_len);
fprintf(out, " Data Length 0x%016" PRIX64 "\n",h->data_filesize);
}
static void print_metadata_key(FILE *out, metadata_t *keys) {
fprintf(out, "[*] Metadata Info:\n");
_hexdump(out, " Key", 0, keys->key, sizeof(keys->key), 0);
_hexdump(out, " IV ", 0, keys->iv, sizeof(keys->iv), 0);
//_hexdump(out, " Raw ", 0, keys->key, 64, 0);
}
static void print_metadata_header(FILE *out, metadata_header_t *h) {
fprintf(out, "[*] Metadata Header:\n");
fprintf(out, " Signature Input Length 0x%016" PRIX64 "\n", h->signature_input_length);
fprintf(out, " unknown_0 0x%08X\n", h->unknown0);
fprintf(out, " Section Count 0x%08X\n", h->section_count);
fprintf(out, " Key Count 0x%08X\n", h->key_count);
fprintf(out, " Optional Header Size 0x%08X\n", h->signature_info_size);
fprintf(out, " unknown_1 0x%08X\n", h->unknown1);
fprintf(out, " unknown_2 0x%08X\n", h->unknown2);
}
static void print_metadata_section_header_entry(FILE *out,
metadata_section_header_t *section_header,
int index) {
fprintf(out, " %03d %08" PRIX64 " %08" PRIX64 " %02X %02X ",
index,
section_header->data_offset,
section_header->data_size,
section_header->type,
section_header->program_idx);
if (section_header->hashed == METADATA_SECTION_HASHED_YES)
fprintf(out, "[YES] %02X ", section_header->sha1_idx);
else
fprintf(out, "[NO ] -- ");
if (section_header->encrypted == METADATA_SECTION_ENCRYPTED_YES)
fprintf(out, "[YES] %02X %02X ", section_header->key_idx, section_header->iv_idx);
else
fprintf(out, "[NO ] -- -- ");
if (section_header->compressed == METADATA_SECTION_COMPRESSED_YES)
fprintf(out, "[YES]\n");
else
fprintf(out, "[NO ]\n") ;
}
static void print_metadata_section_header(FILE *out, sce_info_t *sce_info) {
fprintf(out, "[*] Metadata Section Headers:\n");
fprintf(out, " Idx Offset Size Type Index Hashed SHA1 Encrypted Key IV Compressed\n");
if (sce_info->metadata_header->section_count) {
uint32_t i = 0;
metadata_section_header_t *section_header = sce_info->metadata_section_header;
while (i < sce_info->metadata_header->section_count) {
print_metadata_section_header_entry(out, section_header, i);
++section_header;
++i;
}
}
}
static void print_sce_file_keys(FILE *out, sce_info_t *sce_info) {
fprintf(stdout, "[*] SCE File Keys:\n");
if (sce_info->metadata_header->key_count) {
uint32_t index = 0;
uint8_t *key = (uint8_t *) sce_info->metadata_section_header +
sce_info->metadata_header->section_count * sizeof(metadata_section_header_t);
while (index < sce_info->metadata_header->key_count) {
fprintf(out, " %02X:", index++);
_hexdump(out, "", 0, key, 16, 0);
key += 16;
}
}
}
static sce_info_t *init_sce_info_and_metadata_keys() {
sce_info_t *sce_info = (sce_info_t *) malloc(sizeof(sce_info_t));
if (!sce_info)
return NULL;
memset(sce_info, 0, sizeof(sce_info_t));
sce_info->output = NULL;
sce_hdr_t *sce_header = (sce_hdr_t *) malloc(sizeof(sce_hdr_t));
memset(sce_header, 0, sizeof(sce_hdr_t));
sce_info->sce_header = sce_header;
// Create metadata AES keys
sce_info->metadata_decrypted = 1;
sce_info->metadata_aes_keys = (metadata_t *) malloc(sizeof(metadata_t));
get_rand(sce_info->metadata_aes_keys->key, 16);
memset(sce_info->metadata_aes_keys->key_pad, 0, 16);
get_rand(sce_info->metadata_aes_keys->iv, 16);
memset(sce_info->metadata_aes_keys->iv_pad, 0, 16);
#if 0
uint32_t len = 0;
uint8_t *keys= _read_buffer("keys_meta", &len);
if (len >= 64) {
memcpy(sce_info->metadata_aes_keys, keys, 64);
}
print_metadata_key(stdout, sce_info->metadata_aes_keys);
#endif
// Allocate metadata header
sce_info->metadata_header = (metadata_header_t *) malloc(sizeof(metadata_header_t));
// Allocate signture
sce_info->signature = (signature_t *) malloc(sizeof(signature_t));
// No elf data yet
sce_info->elf_data = NULL;
return sce_info;
}
sce_info_t *process_sce_file(self_header_t *scefile) {
sce_info_t *sce_info = (sce_info_t *) malloc(sizeof(sce_info_t));
if (!sce_info)
return NULL;
memset(sce_info, 0, sizeof(sce_info_t));
sce_info->output = (uint8_t *) scefile;
sce_info->sce_header = &scefile->sce_header;
sce_info->metadata_decrypted = 0;
sce_header_adjust_endianness(&scefile->sce_header);
switch (scefile->sce_header.type) {
case SCE_TYPE_SELF:
sce_info->extended_header = &scefile->ext_header;
sce_extended_header_adjust_endianness(sce_info->extended_header);
// Info header
sce_info->info_header = (void *)scefile + scefile->ext_header.appinfo_offset;
sce_info_header_adjust_endianness(sce_info->info_header);
sce_info->section_info = (void *)scefile + scefile->ext_header.section_info_offset;
// SDK Version
if (scefile->ext_header.sceversion_offset != 0) {
sce_info->sdkversion = (void *)scefile + scefile->ext_header.sceversion_offset;
sce_sdkversion_adjust_endianness(sce_info->sdkversion);
} else {
sce_info->sdkversion = 0;
}
// Control Flags
int left = scefile->ext_header.controlinfo_size;
if (left) {
sce_info->control_flag_list = list_alloc();
control_flag_t *cflag = (control_flag_t *)((void *)scefile + scefile->ext_header.controlinfo_offset);
while (left) {
flag_header_adjust_endianness(&cflag->header);
list_append(sce_info->control_flag_list, cflag);
left -= cflag->header.size;
cflag = (control_flag_t *) ((void *) cflag + cflag->header.size);
}
} else {
sce_info->control_flag_list = NULL;
}
case SCE_TYPE_RVK:
case SCE_TYPE_PKG:
case SCE_TYPE_SPP: {
uint32_t metadata_offset = scefile->sce_header.metadata_offset + METADATA_INFO_UNKNOWN_SIZE;
sce_info->metadata_aes_keys = (metadata_t *) ((uint8_t *)scefile + metadata_offset);
sce_info->metadata_header = (metadata_header_t *) ((uint8_t *) sce_info->metadata_aes_keys + sizeof(metadata_t));
sce_info->metadata_section_header = (metadata_section_header_t *) ((uint8_t *) sce_info->metadata_header + sizeof(metadata_header_t));
break;
}
default:
free(sce_info);
sce_info = NULL;
break;
}
return sce_info;
}
sce_info_t *create_self_info(uint8_t *elf, int size) {
sce_info_t *sce_info = init_sce_info_and_metadata_keys();
if (!sce_info)
return 0;
sce_hdr_t *sce_header = sce_info->sce_header;
sce_header->magic = SCE_MAGIC; /*0x53434500*/
sce_header->version = 2;
sce_header->type = SCE_TYPE_SELF;
sce_info->extended_header = (self_extended_header_t *) malloc(sizeof(self_extended_header_t));
memset(sce_info->extended_header, 0, sizeof(self_extended_header_t));
sce_info->extended_header->header_type = SCE_EXT_HEADER_TYPE_SELF;
sce_info->info_header = (info_header_t *) malloc(sizeof(info_header_t));
sce_info->info_header->authid = 0;
sce_info->info_header->vendor_id = 0;
sce_info->info_header->self_type = 0;
sce_info->info_header->version = 0;
sce_info->info_header->padding = 0;
// New SDK Version Structure
sce_info->sdkversion = (sdkversion_t *) malloc(sizeof(sdkversion_t));
// New control flag list
sce_info->control_flag_list = list_alloc();
// New capability flags list
sce_info->capability_list = list_alloc();
// Fill ELF data
sce_info->elf_data = (elf_data_t *) malloc(sizeof(elf_data_t));
sce_info->elf_data->header = NULL;
sce_info->elf_data->header_size = 0;
sce_info->elf_data->program_header = NULL;
sce_info->elf_data->program_header_size = 0;
sce_info->elf_data->section_header = NULL;
sce_info->elf_data->section_header_size = 0;
sce_info->elf_data->self_program_header_count = 0;
sce_info->elf_data->self_section_info_count = 0;
sce_info->elf_data->image = elf;
sce_info->elf_data->image_size = size;
// New Section List
sce_info->sections_list = list_alloc();
return sce_info;
}
static void append_section_entry_to_list(sce_info_t *sce_info,
uint8_t *ptr, uint32_t size, int compressed) {
section_entry_t *section_entry = (section_entry_t *) malloc(sizeof(section_entry_t));
section_entry->ptr = ptr;
section_entry->size = size;
section_entry->compressed = compressed;
list_append(sce_info->sections_list, section_entry);
}
void compress_sections(sce_info_t *sce_info) {
list_node_t *node = list_head(sce_info->sections_list);
uint32_t i = 0;
while (node) {
section_list_entry_t *section = (section_list_entry_t *) list_get(node);
if (section->compressed) {
if (section->size) {
uLongf compressed_size = compressBound(section->size);
uint8_t *compressed_buffer = malloc(compressed_size);
compress(compressed_buffer, &compressed_size, section->ptr, section->size);
if (compressed_size >= section->size) {
free(compressed_buffer);
if (verbose)
printf("[*] Skipped compression of section %03d (0x%08lX >= 0x%08X)\n", i, compressed_size, section->size);
} else {
section->ptr = compressed_buffer;
section->size = compressed_size;
if (sce_info->sce_header->type == SCE_TYPE_SELF) {
if ( i < sce_info->elf_data->self_section_info_count) {
section_info_t *section_info = &sce_info->section_info[i];
section_info->compressed = SECTION_INFO_COMPRESSED_YES;
section_info->size = compressed_size;
}
}
sce_info->metadata_section_header[i].compressed = METADATA_SECTION_COMPRESSED_YES;
}
} else {
if (verbose)
printf("[*] Skipped compression of section %03d (size is zero)\n", i);
}
}
node = list_next(node);
++i;
}
}
static void complete_headers(sce_info_t *sce_info) {
list_node_t *node = list_head(sce_info->sections_list);
sce_hdr_t *self_header = sce_info->sce_header;
uint32_t current_pos = self_header->header_len;
uint32_t prev_offset = 0;
uint32_t section_count = 0;
if (node) {
metadata_section_header_t *msh = sce_info->metadata_section_header;
while (node) {
section_entry_t *section_entry = (section_entry_t *) list_get(node);
section_entry->offset = current_pos;
if ( self_header->type == SCE_TYPE_SELF ) {
if ( section_count < sce_info->elf_data->self_section_info_count) {
section_info_t *section_info = (section_info_t *)sce_info->section_info;
section_info[section_count].offset = current_pos;
}
}
msh->data_offset = current_pos;
msh->data_size = section_entry->size;
prev_offset = current_pos;
uint32_t next_pos = section_entry->size + current_pos;
self_header->data_filesize = next_pos - self_header->header_len;
current_pos = ALIGN(next_pos, 16);
++section_count;
++msh;
node = list_next(node);
}
}
self_header->metadata_offset = sce_info->metadata_aes_keys_offset - METADATA_INFO_UNKNOWN_SIZE;
metadata_header_t *metadata_header = sce_info->metadata_header;
metadata_header->signature_input_length = sce_info->signature_offset;
node = list_head(sce_info->capability_list);
capability_flag_t *capf = (capability_flag_t *) list_get(node);
uint32_t capability_size = 0;
if (node != NULL) {
while (node) {
capf = (capability_flag_t *) list_get(node);
capability_size += capf->header.size;
node = list_next(node);
}
}
metadata_header->signature_info_size = capability_size;
metadata_header->unknown0 = 1;
metadata_header->unknown1 = 0;
metadata_header->unknown2 = 0;
if (self_header->type == SCE_TYPE_SELF) {
self_extended_header_t *ext_header = (self_extended_header_t *) sce_info->extended_header;
ext_header->appinfo_offset = sce_info->info_header_offset;
ext_header->elf_offset =sce_info->elf_header_offset;
ext_header->phdr_offset = sce_info->elf_program_header_offset;
ext_header->section_info_offset = sce_info->section_info_offset;
ext_header->sceversion_offset = sce_info->sdk_version_offset;
ext_header->controlinfo_offset = sce_info->control_flags_offset;
list_t *controlList = sce_info->control_flag_list;
list_node_t *node = list_head(controlList);
uint32_t size = 0;
while (node != NULL) {
control_flag_t *cf = (control_flag_t *) list_get(node);
size += cf->header.size;
node = list_next(node);
}
ext_header->controlinfo_size = size;
ext_header->shdr_offset = (sce_info->elf_data->section_header)?prev_offset:0;
}
}
static void init_metadata_keys(sce_info_t *sce_info) {
metadata_header_t *metadata_header = (metadata_header_t *)sce_info->metadata_header;
sce_info->metadata_keys_size = 0;
metadata_header->key_count = 0;
uint32_t i = 0;
while (i < sce_info->metadata_header->section_count) {
metadata_section_header_t *msh = &sce_info->metadata_section_header[i];
// Is encrypted? If encrypted we need 8 keys, if not 6
if (msh->encrypted == METADATA_SECTION_ENCRYPTED_YES) {
sce_info->metadata_keys_size += 8 * 16;
sce_info->metadata_header->key_count += 8;
msh->sha1_idx = sce_info->metadata_header->key_count - 8;
msh->key_idx = sce_info->metadata_header->key_count - 2;
msh->iv_idx = sce_info->metadata_header->key_count - 1;
} else {
sce_info->metadata_keys_size += 6 * 16;
sce_info->metadata_header->key_count += 6;
msh->sha1_idx = sce_info->metadata_header->key_count - 6;
msh->key_idx = -1;
msh->iv_idx = -1;
}
++i;
}
sce_info->metadata_keys = (uint8_t *) malloc(sce_info->metadata_keys_size);
get_rand(sce_info->metadata_keys, sce_info->metadata_keys_size);
#if 0
uint32_t len;
uint8_t *keys= _read_buffer("keys", &len);
if (len >= sce_info->metadata_keys_size) {
memcpy(sce_info->metadata_keys, keys,
sce_info->metadata_keys_size);
}
print_metadata_key(stdout, sce_info->metadata_aes_keys);
return;
#endif
// Set first hmac-key -- SCETool specific?
char hmac_part4[17];
time_t now = time(NULL);
struct tm *tm = localtime(&now);
sprintf(hmac_part4,"%02d%02d%02d::%02d%02d%04d",
tm->tm_hour,
tm->tm_min,
tm->tm_sec,
tm->tm_mday,
tm->tm_mon,
tm->tm_year + 1900);
section_hash_t *first_key = (section_hash_t *) sce_info->metadata_keys;
static uint8_t hmac_part1[] = "SURPRIZE :D ";
static uint8_t hmac_part2[] = "IM IN UR KEYZ !!";
//{ 0xAEBEB809, 0xA617C083, 0x50B0113B, 0xF9EDCEC4 };
static uint8_t hmac_part3[] = { 0x09, 0xb8, 0xbe, 0xae, 0x83, 0xc0, 0x17, 0xa6,
0x3b, 0x11, 0x0b, 0x05, 0xc4, 0xce, 0xed, 0xf9};
int idx = 0;
memcpy(first_key->hmac_key,hmac_part1, 12); idx += 16;
memcpy(first_key->hmac_key + idx,hmac_part2, 16); idx += 16;
memcpy(first_key->hmac_key + idx,hmac_part3, 16); idx += 16;
memcpy(first_key->hmac_key + idx,hmac_part4, 16);
}
void self_fill_header(sce_info_t *sce_info) {
sce_info->sce_header_offset = 0;
uint32_t metadata_aes_keys_offset = 32;
if (sce_info->sce_header->type == SCE_TYPE_SELF) {
elf_data_t *elf_data = sce_info->elf_data;
uint32_t elf_prog_header_size = elf_data->program_header_size;
sce_info->extended_header_offset = sizeof(sce_hdr_t);
sce_info->info_header_offset = sizeof(sce_hdr_t) + sizeof(self_extended_header_t);
sce_info->elf_header_offset = sce_info->info_header_offset + sizeof(info_header_t);
uint32_t elf_header_size = elf_data->header_size;
uint32_t elf_prog_header_count = elf_data->self_program_header_count;
uint32_t elf_program_header_offset = ALIGN(elf_header_size +
sizeof(sce_hdr_t) +
sizeof(self_extended_header_t) +
sizeof(info_header_t), 16);
sce_info->elf_program_header_offset = elf_program_header_offset;
uint32_t section_header_offset = ALIGN(elf_program_header_offset + elf_prog_header_size, 16);
sce_info->section_info_offset = section_header_offset;
int sdk_version_offset = ALIGN( section_header_offset +
sizeof(section_info_t) * elf_prog_header_count, 16);
sce_info->sdk_version_offset = sdk_version_offset;
sce_info->control_flags_offset = ALIGN(sdk_version_offset + sizeof(sdkversion_t), 16);
uint32_t len = 0;
list_t *control_flag_list = sce_info->control_flag_list;
list_node_t *node = list_head(control_flag_list);
while (node) {
control_flag_t *cf = (control_flag_t *) list_get(node);
len += cf->header.size;
node = list_next(node);
}
metadata_aes_keys_offset = ALIGN(sce_info->control_flags_offset + len, 16);
}
sce_info->metadata_aes_keys_offset = metadata_aes_keys_offset;
uint32_t metadata_header_offset = ALIGN(sce_info->metadata_aes_keys_offset + sizeof(metadata_t), 16);
sce_info->metadata_header_offset = metadata_header_offset;
uint32_t metadata_section_header_offset = ALIGN(metadata_header_offset + sizeof(metadata_header_t), 16);
sce_info->metadata_section_header_offset = metadata_section_header_offset;
uint32_t section_count = sce_info->metadata_header->section_count;
uint32_t metadata_keys_offset = ALIGN(metadata_section_header_offset +
sizeof(metadata_section_header_t) * section_count, 16);
sce_info->metadata_keys_offset = metadata_keys_offset;
init_metadata_keys(sce_info);
uint32_t signature_offset = ALIGN(sce_info->metadata_keys_size + metadata_keys_offset, 16);
if (sce_info->sce_header->type == SCE_TYPE_SELF) {
sce_info->capability_flags_offset = signature_offset;
uint32_t len = 0;
list_t *capability_list = sce_info->capability_list;
list_node_t *node = list_head(capability_list);
while (node) {
capability_flag_t *cap = (capability_flag_t *) list_get(node);
len += cap->header.size;
node = list_next(node);
}
signature_offset = ALIGN(signature_offset + len, 16);
}
sce_info->signature_offset = signature_offset;
uint32_t header_len = ALIGN(signature_offset + sizeof(signature_t), 16);
sce_info->end_of_header = header_len;
sce_info->sce_header->header_len = ALIGN(header_len, 0x80);
complete_headers(sce_info);
}
void build_self_header(sce_info_t *sce_info) {
uint32_t sce_header_len = sce_info->sce_header->header_len;
uint8_t *new_header = (uint8_t *) malloc(sce_header_len);
memset(new_header, 0, sce_header_len);
sce_info->output = new_header;
// Copy SCE Header
sce_hdr_t *sce_head = (sce_hdr_t *) (new_header + sce_info->sce_header_offset);
memcpy(sce_head, sce_info->sce_header, sizeof(sce_hdr_t));
sce_header_adjust_endianness(sce_head);
if ( (sce_info->sce_header->type) == SCE_TYPE_SELF ) {
// Copy extended header
self_extended_header_t *ext_header = (self_extended_header_t *)(new_header +
sce_info->extended_header_offset);
memcpy((uint8_t *) ext_header,
(uint8_t *) sce_info->extended_header,
sizeof(self_extended_header_t));
sce_extended_header_adjust_endianness(ext_header);
// Copy info header
info_header_t *info_header = (info_header_t *) (new_header + sce_info->info_header_offset);
memcpy((uint8_t *) info_header,
(uint8_t *) sce_info->info_header, sizeof(info_header_t));
sce_info_header_adjust_endianness(info_header);
// Copy elf header
elf_data_t *elf_data = sce_info->elf_data;
memcpy(new_header + sce_info->elf_header_offset, elf_data->header, elf_data->header_size);
// Copy program header from elf
memcpy( new_header + sce_info->elf_program_header_offset,
elf_data->program_header,
elf_data->program_header_size);
// Copy Section Info
uint32_t cont = 0;
if ( elf_data->self_program_header_count ) {
section_info_t *section_info = (section_info_t *) (new_header + sce_info->section_info_offset);
while (cont < elf_data->self_program_header_count) {
memcpy(§ion_info[cont],
&sce_info->section_info[cont],
sizeof(section_info_t));
section_info_adjust_endianness(§ion_info[cont]);
++cont;
}
}
// Copy SDK Version Info
sdkversion_t *sdk_version = (sdkversion_t *) (new_header + sce_info->sdk_version_offset);
sdk_version->type = sce_info->sdkversion->type;
sdk_version->present = sce_info->sdkversion->present;
sdk_version->size = sce_info->sdkversion->size;
sdk_version->unknown3 = sce_info->sdkversion->unknown3;
sce_sdkversion_adjust_endianness(sdk_version);
// Copy control flags
list_node_t *node = list_head(sce_info->control_flag_list);
uint32_t control_flag_offset = sce_info->control_flags_offset;
while (node) {
control_flag_t *cf = (control_flag_t *) list_get(node);
control_flag_t *new = (control_flag_t *) (new_header + control_flag_offset);
new->header.type = cf->header.type;
new->header.size = cf->header.size;
new->header.next = cf->header.next;
flag_header_adjust_endianness(&new->header);
memcpy((uint8_t *) &new->control_flags, (uint8_t *) &cf->control_flags, cf->header.size - 16);
control_flag_offset += cf->header.size;
node = list_next(node);
}
}
// Copy metadata aes_keys
memcpy(new_header + sce_info->metadata_aes_keys_offset,
(const void *)sce_info->metadata_aes_keys, sizeof(metadata_t));
// Copy metadata_header
metadata_header_t *metadata_header = (metadata_header_t *)(new_header + sce_info->metadata_header_offset);
memcpy((uint8_t *) metadata_header,
(uint8_t *) sce_info->metadata_header, sizeof(metadata_header_t));
metadata_header_adjust_endianness(metadata_header);
// Copy metadata sections
if ((sce_info->metadata_header->section_count) ) {
metadata_section_header_t *msh = (metadata_section_header_t *) (new_header + sce_info->metadata_section_header_offset);
uint32_t cont = 0;
while ( cont < sce_info->metadata_header->section_count ) {
memcpy((uint8_t *)&msh[cont],
(uint8_t *)&sce_info->metadata_section_header[cont],
sizeof(metadata_section_header_t));
metadata_section_header_adjust_endianness(&msh[cont]);
++cont;
}
}
// Copy capabilites flags
if ( (sce_info->sce_header->type) == SCE_TYPE_SELF ) {
list_node_t *node = list_head(sce_info->capability_list);
uint32_t offset = sce_info->capability_flags_offset;
while (node) {
capability_flag_t *cap_flag = (capability_flag_t *) list_get(node);
capability_flag_t *new = (capability_flag_t *)(new_header + offset);
new->header.type = cap_flag->header.type;
new->header.size = cap_flag->header.size;
new->header.next = cap_flag->header.next;
flag_header_adjust_endianness(&new->header);
memcpy((uint8_t *)&new->payload,
(uint8_t *)&cap_flag->payload, cap_flag->header.size - 16);
offset += cap_flag->header.size;
node = list_next(node);
}
}
}
static int generate_signature(sce_info_t *sce_info, keyset_t *keyset) {
uint8_t hash[20];
if (!keyset->priv_key || !keyset->pub_key) {
return 0;
}
sha1(sce_info->output,
sce_info->metadata_header->signature_input_length, hash);
ecdsa_set_curve(keyset->ctype);
ecdsa_set_pub(keyset->pub_key);
ecdsa_set_priv(keyset->priv_key);
signature_t *signature = sce_info->signature;
ecdsa_sign(hash, signature->r, signature->s);
memcpy(sce_info->output + sce_info->signature_offset,
sce_info->signature,
sizeof(signature_t));
return 1;
}
static void calculate_section_hashes(sce_info_t *sce_info) {
list_node_t *node = list_head(sce_info->sections_list);
metadata_section_header_t *metadata_section_header = sce_info->metadata_section_header;
while (node) {
section_entry_t *section_entry = (section_entry_t *) list_get(node);
uint32_t sha1_index = metadata_section_header->sha1_idx;
uint32_t sha1_offset = 16 * sha1_index;
uint8_t *sha1_ptr = sce_info->metadata_keys + sha1_offset;
memset(sha1_ptr, 0, 0x20);
uint32_t size = section_entry->size;
uint8_t *ptr = section_entry->ptr;
uint32_t hmac_key_offset = 16 * (sha1_index + 2);
uint8_t *hmac_key_ptr = (uint8_t *) sce_info->metadata_keys + hmac_key_offset;
uint32_t hmac_key_size = 64;
sha1_hmac(hmac_key_ptr, hmac_key_size,
ptr, size, sha1_ptr);
node = list_next(node);
++metadata_section_header;
}
}
int encrypt_metadata(sce_info_t *sce_info, keyset_raw_t *keyset_raw) {
aes_context aes_ctx;
uint8_t iv[16];
keyset_t *keyset = NULL;
if ( keyset_raw ) {
keyset = get_keyset_from_raw(keyset_raw);
} else {
keyset = find_keyset_from_header(sce_info);
if ( !keyset )
return 0;
}
calculate_section_hashes(sce_info);
memcpy((uint8_t *) sce_info->output + sce_info->metadata_keys_offset,
sce_info->metadata_keys,
sce_info->metadata_keys_size);
generate_signature(sce_info, keyset);
uint8_t *metadata_header = sce_info->output + sce_info->metadata_header_offset;
aes_setkey_enc(&aes_ctx, sce_info->metadata_aes_keys->key, 128);
memcpy(iv, sce_info->metadata_aes_keys->iv, sizeof(iv));
size_t nc_off = 0;
uint8_t stream_buff[16];
int len = sce_info->sce_header->header_len - sce_info->sce_header->metadata_offset - 0x60;
aes_crypt_ctr(&aes_ctx, len, &nc_off, iv, stream_buff, metadata_header, metadata_header);
aes_setkey_enc(&aes_ctx, keyset->erk_key, 8 * keyset->erk_len);
aes_crypt_cbc(&aes_ctx, AES_ENCRYPT, sizeof(metadata_t), keyset->riv_key,
(void *) sce_info->output + sce_info->metadata_aes_keys_offset,
(void *) sce_info->output + sce_info->metadata_aes_keys_offset);
/*
printf("despues de encriptar\n");
print_metadata_key(stdout, sce_info->metadata_aes_keys);
print_metadata_key(stdout, sce_info->output + sce_info->metadata_aes_keys_offset);
aes_setkey_dec(&aes_ctx, keyset->erk_key, 8 * keyset->erk_len);
aes_crypt_cbc(&aes_ctx, AES_DECRYPT, sizeof(metadata_t), keyset->riv_key,
(void *) sce_info->output + sce_info->metadata_aes_keys_offset,
(void *) sce_info->output + sce_info->metadata_aes_keys_offset);
printf("offset: %x\n", sce_info->metadata_aes_keys_offset);
printf("despues de encriptar - 2\n");
print_metadata_key(stdout, sce_info->metadata_aes_keys);
print_metadata_key(stdout, sce_info->output + sce_info->metadata_aes_keys_offset);
*/
if (sce_info->sce_header->type == SCE_TYPE_SELF && sce_info->info_header->self_type == SELF_TYPE_NPDRM) {
if (!npdrm_encrypt(sce_info))
return 0;
}
return 1;
}
void self_encrypt_sections(sce_info_t *sce_info) {
aes_context aes_ctx;
list_node_t * node = list_head(sce_info->sections_list);
metadata_section_header_t *msh = sce_info->metadata_section_header;
while (node) {
section_entry_t *entry = (section_entry_t *) list_get(node);
if (msh->encrypted == METADATA_SECTION_ENCRYPTED_YES) {
uint8_t iv[16];
uint32_t iv_offset = msh->iv_idx * 16;
uint32_t key_offset = msh->key_idx * 16;
uint8_t *meta_iv = sce_info->metadata_keys + iv_offset;
uint8_t *meta_key = sce_info->metadata_keys + key_offset;
memcpy(iv, meta_iv, sizeof(iv));
aes_setkey_enc(&aes_ctx, meta_key, 128);
size_t nc_off = 0;
uint8_t stream_buf[16];
aes_crypt_ctr(&aes_ctx, entry->size, &nc_off, iv, stream_buf, entry->ptr, entry->ptr);
}
node = list_next(node);
++msh;
}
}
int write_self(const char *output, sce_info_t *sce_info) {
FILE *fp = fopen(output, "wb");
if (!fp)
return 0;
// Write Self Header
fwrite(sce_info->output, 1, sce_info->sce_header->header_len, fp);
/*
printf("write_self\n");
printf("signature offset: %x\n", sce_info->signature_offset);
aes_context aes_ctx;
keyset_t *keyset = find_keyset_from_header(sce_info);
print_metadata_key(stdout, sce_info->metadata_aes_keys);
aes_setkey_dec(&aes_ctx, keyset->erk_key, 8 * keyset->erk_len);
aes_crypt_cbc(&aes_ctx, AES_DECRYPT, sizeof(metadata_t), keyset->riv_key,
(void *) sce_info->output + sce_info->metadata_aes_keys_offset,
(void *) sce_info->output + sce_info->metadata_aes_keys_offset);
print_metadata_key(stdout, sce_info->output + sce_info->metadata_aes_keys_offset);
*/
// Write all the sections
list_node_t *node = list_head(sce_info->sections_list);
while (node) {
section_list_entry_t *raw_section = (section_list_entry_t *) list_get(node);
fseek(fp, raw_section->offset, SEEK_SET);
fwrite(raw_section->ptr, 1, raw_section->size, fp);
node = list_next(node);
}
fclose(fp);
return 1;
}
int decrypt_header(sce_info_t *sce_info, keyset_raw_t *keyset_override, metadata_t *metadata_override) {
keyset_t *keyset;
uint8_t riv[16];
aes_context aes_ctx;
if (metadata_override) {
sce_info->metadata_aes_keys = metadata_override;
} else {
if (keyset_override) {
keyset = get_keyset_from_raw(keyset_override);
} else {
keyset = find_keyset_from_header(sce_info);
if (!keyset)
return 0;
if (verbose) {
char version[6];
int version_major = (keyset->version >> 48) & 0xFFFF;
int version_minor = (keyset->version >> 32) & 0xFFFF;
sprintf(version, "%02X.%02X", version_major, version_minor);
printf("[*] Using keyset [%s 0x%04X %s]\n", keyset->name, keyset->revision, version);
}
}
if (sce_info->sce_header->type == SCE_TYPE_SELF && sce_info->info_header->self_type == SELF_TYPE_NPDRM) {
if (!decrypt_with_klic(sce_info)) {
return 0;
}
}
aes_setkey_dec(&aes_ctx, keyset->erk_key, keyset->erk_len * 8);
memcpy(riv, keyset->riv_key, sizeof(riv));
aes_crypt_cbc(&aes_ctx, AES_DECRYPT, sizeof(metadata_t), riv,
(uint8_t *) sce_info->metadata_aes_keys,
(uint8_t *) sce_info->metadata_aes_keys);
}
metadata_t *metadata_aes = sce_info->metadata_aes_keys;
if (metadata_aes->key_pad[0] != 0 || metadata_aes->iv_pad[0] != 0) {
return 0;
}
aes_setkey_enc(&aes_ctx, metadata_aes->key, 128);
size_t nc_off = 0;
int len = sce_info->sce_header->header_len - sce_info->sce_header->metadata_offset - 0x60;
aes_crypt_ctr(&aes_ctx, len, &nc_off, metadata_aes->iv, riv,
(uint8_t *) sce_info->metadata_header,
(uint8_t *) sce_info->metadata_header);
metadata_header_t *metadata_header = sce_info->metadata_header;
metadata_header_adjust_endianness(metadata_header);
if (metadata_header->section_count) {
uint32_t count = 0;
metadata_section_header_t *section = sce_info->metadata_section_header;
while (count < metadata_header->section_count) {
metadata_section_header_adjust_endianness(section);
++section;
++count;
}
}
sce_info->metadata_decrypted = 1;
sce_info->metadata_keys = (void *) sce_info->metadata_section_header + (metadata_header->section_count) * sizeof(metadata_section_header_t);
sce_info->metadata_keys_size = (metadata_header->key_count) * 16;
if (sce_info->sce_header->type == SCE_TYPE_SELF && metadata_header->signature_info_size) {
sce_info->capability_list = list_alloc();
capability_flag_t *capability = (void *) sce_info->metadata_keys + 16 * (metadata_header->key_count);
flag_header_adjust_endianness(&capability->header);
list_append(sce_info->capability_list, capability);
uint32_t size = 0;
while (capability->header.next && size < metadata_header->signature_info_size) {
capability = (void *) capability + capability->header.size;
size += capability->header.size;
list_append(sce_info->capability_list, capability);
}
// After capability flags, comes the signature
sce_info->signature = (void *) capability + capability->header.size;
} else {
sce_info->signature = (void *) sce_info->metadata_keys + (metadata_header->key_count) * 16;
}
return 1;
}
int decrypt_sections(sce_info_t *sce_info) {
aes_context aes_ctx;
metadata_header_t *metadata_header = sce_info->metadata_header;
if (metadata_header->section_count) {
metadata_section_header_t *section_header = sce_info->metadata_section_header;
uint32_t i = 0;
while (i < metadata_header->section_count) {
if (section_header->encrypted == METADATA_SECTION_ENCRYPTED_YES) {
if (section_header->key_idx > metadata_header->key_count ||
section_header->iv_idx > metadata_header->key_count ) {
printf("[*] Warning: Skipped decryption of section %03d (marked encrypted but key/iv index out of range)\n", i);
} else {
uint8_t *keys = sce_info->metadata_keys;
uint8_t iv[16];
uint8_t stream_buf[16];
memcpy(iv, keys + 16 * section_header->iv_idx, sizeof(iv));
aes_setkey_enc(&aes_ctx, keys + 16 * section_header->key_idx, 128);
size_t nc_off = 0;
aes_crypt_ctr(&aes_ctx, section_header->data_size, &nc_off, iv, stream_buf,
(uint8_t *) sce_info->output + section_header->data_offset,
(uint8_t *) sce_info->output + section_header->data_offset);
#if 0
char buffer[255];
sprintf(buffer, "section-%i.bin", i);
printf("Seccion %i\n",i);
_write_buffer(buffer, (uint8_t *) sce_info->output + section_header->data_offset, section_header->data_size);
#endif