mirror of
https://github.com/SciresM/hactool
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Add preliminary savefile parsing support
This commit is contained in:
shchmue
parent
b8062ab149
commit
ae795bba8b
3 changed files with 292 additions and 0 deletions
9
ivfc.h
9
ivfc.h
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@ -37,6 +37,15 @@ typedef struct {
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uint8_t master_hash[0x20];
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} ivfc_hdr_t;
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typedef struct {
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uint32_t magic;
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uint32_t id;
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uint32_t master_hash_size;
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uint32_t num_levels;
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ivfc_level_hdr_t level_headers[IVFC_MAX_LEVEL];
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uint8_t salt_source[0x20];
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} ivfc_save_hdr_t;
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/* RomFS structs. */
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#define ROMFS_HEADER_SIZE 0x00000050
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111
save.c
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111
save.c
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@ -0,0 +1,111 @@
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#include <string.h>
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#include <time.h>
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#include "save.h"
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#include "aes.h"
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void save_process(save_ctx_t *ctx) {
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/* Read *just* safe amount. */
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fseeko64(ctx->file, 0, SEEK_SET);
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if (fread(&ctx->header, 1, sizeof(ctx->header), ctx->file) != sizeof(ctx->header)) {
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fprintf(stderr, "Failed to read save header!\n");
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exit(EXIT_FAILURE);
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}
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if ((ctx->tool_ctx->action & ACTION_VERIFY)) {
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ctx->hash_validity = check_memory_hash_table(ctx->file, ctx->header.layout.hash, 0x300, 0x3D00, 0x3D00, 0);
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unsigned char cmac[0x10];
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memset(cmac, 0, 0x10);
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aes_calculate_cmac(cmac, &ctx->header.layout, sizeof(ctx->header.layout), ctx->tool_ctx->settings.keyset.save_mac_key);
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if (memcmp(cmac, &ctx->header.cmac, 0x10) == 0) {
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ctx->disf_cmac_validity = VALIDITY_VALID;
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} else {
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ctx->disf_cmac_validity = VALIDITY_INVALID;
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}
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}
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if (ctx->tool_ctx->action & ACTION_INFO) {
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save_print(ctx);
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}
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if (ctx->tool_ctx->action & ACTION_EXTRACT) {
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save_save(ctx);
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}
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}
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void save_save(save_ctx_t *ctx) {
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}
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void save_print_ivfc_section(save_ctx_t *ctx) {
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print_magic(" Magic: ", ctx->header.ivfc_header.magic);
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printf(" ID: %08"PRIx32"\n", ctx->header.ivfc_header.id);
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memdump(stdout, " Salt Seed: ", &ctx->header.ivfc_header.salt_source, 0x20);
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for (unsigned int i = 0; i < 4; i++) {
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printf(" Level %"PRId32":\n", i);
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printf(" Data Offset: 0x%016"PRIx64"\n", ctx->header.ivfc_header.level_headers[i].logical_offset);
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printf(" Data Size: 0x%016"PRIx64"\n", ctx->header.ivfc_header.level_headers[i].hash_data_size);
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if (i != 0) {
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printf(" Hash Offset: 0x%016"PRIx64"\n", ctx->header.ivfc_header.level_headers[i-1].logical_offset);
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} else {
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printf(" Hash Offset: 0x%016"PRIx64"\n", 0);
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}
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printf(" Hash Block Size: 0x%08"PRIx32"\n", 1 << ctx->header.ivfc_header.level_headers[i].block_size);
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}
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}
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static const char *save_get_save_type(save_ctx_t *ctx) {
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switch (ctx->header.extra_data.save_data_type) {
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case 0:
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return "SystemSaveData";
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case 1:
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return "SaveData";
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case 2:
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return "BcatDeliveryCacheStorage";
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case 3:
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return "DeviceSaveData";
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case 4:
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return "TemporaryStorage";
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case 5:
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return "CacheStorage";
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default:
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return "Unknown";
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}
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}
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void save_print(save_ctx_t *ctx) {
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printf("\nSave:\n");
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if (ctx->tool_ctx->action & ACTION_VERIFY) {
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if (ctx->disf_cmac_validity == VALIDITY_VALID) {
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memdump(stdout, "Header CMAC (GOOD): ", &ctx->header.cmac, 0x10);
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} else {
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memdump(stdout, "Header CMAC (FAIL): ", &ctx->header.cmac, 0x10);
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}
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} else {
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memdump(stdout, "Header CMAC: ", &ctx->header.cmac, 0x10);
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}
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printf("Title ID: %016"PRIx64"\n", ctx->header.extra_data.title_id);
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memdump(stdout, "User ID: ", &ctx->header.extra_data.user_id, 0x10);
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printf("Save ID: %016"PRIx64"\n", ctx->header.extra_data.save_id);
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printf("Save Type: %s\n", save_get_save_type(ctx));
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printf("Owner ID: %016"PRIx64"\n", ctx->header.extra_data.save_owner_id);
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char timestamp[70];
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if (strftime(timestamp, sizeof(timestamp), "%F %T UTC", gmtime((time_t *)&ctx->header.extra_data.timestamp)))
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printf("Timestamp: %s\n", timestamp);
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printf("Save Data Size: %016"PRIx64"\n", ctx->header.extra_data.data_size);
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printf("Journal Size: %016"PRIx64"\n", ctx->header.extra_data.journal_size);
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if (ctx->tool_ctx->action & ACTION_VERIFY) {
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if (ctx->hash_validity == VALIDITY_VALID) {
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memdump(stdout, "Header Hash (GOOD): ", &ctx->header.layout.hash, 0x20);
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} else {
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memdump(stdout, "Header Hash (FAIL): ", &ctx->header.layout.hash, 0x20);
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}
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} else {
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memdump(stdout, "Header Hash: ", &ctx->header.layout.hash, 0x20);
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}
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save_print_ivfc_section(ctx);
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}
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172
save.h
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172
save.h
Normal file
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@ -0,0 +1,172 @@
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#ifndef HACTOOL_SAVE_H
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#define HACTOOL_SAVE_H
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#include "types.h"
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#include "settings.h"
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#include "ivfc.h"
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#define SAVE_HEADER_SIZE 0x4000
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#define MAGIC_DISF 0x46534944
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#define MAGIC_DPFS 0x53465044
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#define MAGIC_JNGL 0x4C474E4A
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#define MAGIC_SAVE 0x45564153
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#define MAGIC_RMAP 0x50414D52
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#define MAGIC_IVFC 0x43465649
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typedef struct {
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uint32_t magic; /* DISF */
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uint32_t version;
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uint8_t hash[0x20];
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uint64_t file_map_entry_offset;
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uint64_t file_map_entry_size;
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uint64_t meta_map_entry_offset;
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uint64_t meta_map_entry_size;
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uint64_t file_map_data_offset;
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uint64_t file_map_data_size;
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uint64_t duplex_l1_offset_a;
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uint64_t duplex_l1_offset_b;
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uint64_t duplex_l1_size;
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uint64_t duplex_data_offset_a;
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uint64_t duplex_data_offset_b;
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uint64_t duplex_data_size;
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uint64_t journal_data_offset;
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uint64_t journal_data_size_a;
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uint64_t journal_data_size_b;
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uint64_t journal_size;
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uint64_t duplex_master_offset_a;
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uint64_t duplex_master_offset_b;
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uint64_t duplex_master_size;
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uint64_t ivfc_master_hash_offset_a;
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uint64_t ivfc_master_hash_offset_b;
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uint64_t ivfc_master_hash_size;
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uint64_t journal_map_table_offset;
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uint64_t journal_map_table_size;
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uint64_t journal_physical_bitmap_offset;
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uint64_t journal_physical_bitmap_size;
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uint64_t journal_virtual_bitmap_offset;
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uint64_t journal_virtual_bitmap_size;
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uint64_t journal_free_bitmap_offset;
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uint64_t journal_free_bitmap_size;
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uint64_t ivfc_l1_offset;
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uint64_t ivfc_l1_size;
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uint64_t ivfc_l2_offset;
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uint64_t ivfc_l2_size;
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uint64_t ivfc_l3_offset;
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uint64_t ivfc_l3_size;
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uint64_t fat_offset;
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uint64_t fat_size;
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uint64_t duplex_index;
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uint64_t fat_ivfc_master_hash_a;
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uint64_t fat_ivfc_master_hash_b;
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uint64_t fat_ivfc_l1_offset;
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uint64_t fat_ivfc_l1_size;
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uint64_t fat_ivfc_l2_offset;
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uint64_t fat_ivfc_l2_size;
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uint8_t _0x190[0x70];
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} fs_layout_t;
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#pragma pack(push, 1)
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typedef struct {
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uint64_t offset;
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uint64_t length;
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uint32_t block_size_power;
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} duplex_info_t;
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#pragma pack(pop)
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typedef struct {
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uint32_t magic; /* DPFS */
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uint32_t version;
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duplex_info_t layers[3];
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} duplex_header_t;
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typedef struct {
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uint32_t version;
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uint32_t main_data_block_count;
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uint32_t journal_block_count;
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uint32_t _0x0C;
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} journal_map_header_t;
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typedef struct {
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uint32_t magic; /* JNGL */
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uint32_t version;
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uint64_t total_size;
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uint64_t journal_size;
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uint64_t block_size;
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} journal_header_t;
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typedef struct {
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uint32_t magic; /* SAVE */
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uint32_t version;
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uint64_t block_count;
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uint64_t block_size;
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} save_fs_header_t;
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typedef struct {
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uint64_t block_size;
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uint64_t fat_offset;
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uint32_t fat_block_count;
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uint32_t _0x14;
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uint64_t data_offset;
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uint32_t data_block_count;
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uint32_t _0x24;
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uint32_t directory_table_block;
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uint32_t file_table_block;
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} fat_header_t;
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typedef struct {
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uint32_t magic; /* RMAP */
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uint32_t version;
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uint32_t map_entry_count;
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uint32_t map_segment_count;
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uint32_t segment_bits;
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uint8_t _0x14[0x2C];
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} remap_header_t;
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typedef struct {
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uint64_t title_id;
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uint8_t user_id[0x10];
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uint64_t save_id;
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uint8_t save_data_type;
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uint8_t _0x21[0x1F];
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uint64_t save_owner_id;
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uint64_t timestamp;
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uint64_t _0x50;
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uint64_t data_size;
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uint64_t journal_size;
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uint64_t commit_id;
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} extra_data_t;
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#pragma pack(push, 1)
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typedef struct {
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uint8_t cmac[0x10];
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uint8_t _0x10[0xF0];
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fs_layout_t layout;
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duplex_header_t duplex_header;
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ivfc_save_hdr_t ivfc_header;
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uint32_t _0x404;
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journal_header_t journal_header;
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journal_map_header_t map_header;
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uint8_t _0x438[0x1D0];
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save_fs_header_t save_header;
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fat_header_t fat_header;
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remap_header_t main_remap_header, meta_remap_header;
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uint64_t _0x6D0;
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extra_data_t extra_data;
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uint8_t _0x748[0x390];
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ivfc_save_hdr_t fat_ivfc_header;
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} save_header_t;
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#pragma pack(pop)
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typedef struct {
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FILE *file;
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hactool_ctx_t *tool_ctx;
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save_header_t header;
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validity_t disf_cmac_validity;
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validity_t hash_validity;
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} save_ctx_t;
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void save_process(save_ctx_t *ctx);
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void save_save(save_ctx_t *ctx);
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void save_print(save_ctx_t *ctx);
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#endif
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