mirror of
https://github.com/DarkMatterCore/nxdumptool.git
synced 2024-10-31 07:51:46 +00:00
1317 lines
44 KiB
C
1317 lines
44 KiB
C
/*
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* gamecard.c
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*
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* Copyright (c) 2020-2021, DarkMatterCore <pabloacurielz@gmail.com>.
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*
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* This file is part of nxdumptool (https://github.com/DarkMatterCore/nxdumptool).
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*
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* nxdumptool is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* nxdumptool is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "nxdt_utils.h"
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#include "mem.h"
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#include "gamecard.h"
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#include "keys.h"
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#define GAMECARD_HFS0_MAGIC 0x48465330 /* "HFS0". */
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#define GAMECARD_READ_BUFFER_SIZE 0x800000 /* 8 MiB. */
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#define GAMECARD_ACCESS_WAIT_TIME 3 /* Seconds. */
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#define GAMECARD_UNUSED_AREA_BLOCK_SIZE 0x24
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#define GAMECARD_UNUSED_AREA_SIZE(x) (((x) / GAMECARD_PAGE_SIZE) * GAMECARD_UNUSED_AREA_BLOCK_SIZE)
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#define GAMECARD_STORAGE_AREA_NAME(x) ((x) == GameCardStorageArea_Normal ? "normal" : ((x) == GameCardStorageArea_Secure ? "secure" : "none"))
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#define GAMECARD_HFS_PARTITION_NAME_INDEX(x) ((x) - 1)
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#define LAFW_MAGIC 0x4C414657 /* "LAFW". */
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/* Type definitions. */
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typedef enum {
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GameCardStorageArea_None = 0,
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GameCardStorageArea_Normal = 1,
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GameCardStorageArea_Secure = 2
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} GameCardStorageArea;
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typedef enum {
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GameCardCapacity_1GiB = BIT_LONG(30),
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GameCardCapacity_2GiB = BIT_LONG(31),
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GameCardCapacity_4GiB = BIT_LONG(32),
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GameCardCapacity_8GiB = BIT_LONG(33),
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GameCardCapacity_16GiB = BIT_LONG(34),
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GameCardCapacity_32GiB = BIT_LONG(35)
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} GameCardCapacity;
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/// Only kept for documentation purposes, not really used.
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/// A copy of the gamecard header without the RSA-2048 signature and a plaintext GameCardInfo precedes this struct in FS program memory.
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typedef struct {
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u32 memory_interface_mode;
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u32 asic_status;
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u8 card_id_area[0x48];
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u8 reserved[0x1B0];
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FsGameCardCertificate certificate;
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GameCardInitialData initial_data;
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} GameCardSecurityInformation;
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NXDT_ASSERT(GameCardSecurityInformation, 0x600);
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typedef enum {
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LotusAsicFirmwareType_ReadFw = 0xFF,
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LotusAsicFirmwareType_ReadDevFw = 0xFFFF,
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LotusAsicFirmwareType_WriterFw = 0xFFFFFF,
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LotusAsicFirmwareType_RmaFw = 0xFFFFFFFF
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} LotusAsicFirmwareType;
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typedef enum {
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LotusAsicDeviceType_Test = 0,
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LotusAsicDeviceType_Dev = 1,
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LotusAsicDeviceType_Prod = 2,
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LotusAsicDeviceType_Prod2Dev = 3
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} LotusAsicDeviceType;
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typedef struct {
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u8 signature[0x100];
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u32 magic; ///< "LAFW".
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u32 fw_type; ///< LotusAsicFirmwareType.
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u8 reserved_1[0x8];
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struct {
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u64 fw_version : 62; ///< Stored using a bitmask.
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u64 device_type : 2; ///< LotusAsicDeviceType.
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};
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u32 data_size;
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u8 reserved_2[0x4];
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u8 data_iv[AES_128_KEY_SIZE];
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char placeholder_str[0x10]; ///< "IDIDIDIDIDIDIDID".
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u8 reserved_3[0x40];
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u8 data[0x7680];
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} LotusAsicFirmwareBlob;
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NXDT_ASSERT(LotusAsicFirmwareBlob, 0x7800);
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/* Global variables. */
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static Mutex g_gameCardMutex = 0;
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static bool g_gameCardInterfaceInit = false;
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static FsDeviceOperator g_deviceOperator = {0};
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static FsEventNotifier g_gameCardEventNotifier = {0};
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static Event g_gameCardKernelEvent = {0};
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static bool g_openDeviceOperator = false, g_openEventNotifier = false, g_loadKernelEvent = false;
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static u64 g_lafwVersion = 0;
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static Thread g_gameCardDetectionThread = {0};
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static UEvent g_gameCardDetectionThreadExitEvent = {0}, g_gameCardStatusChangeEvent = {0};
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static bool g_gameCardDetectionThreadCreated = false;
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static GameCardStatus g_gameCardStatus = GameCardStatus_NotInserted;
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static FsGameCardHandle g_gameCardHandle = {0};
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static FsStorage g_gameCardStorage = {0};
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static u8 g_gameCardCurrentStorageArea = GameCardStorageArea_None;
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static u8 *g_gameCardReadBuf = NULL;
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static GameCardHeader g_gameCardHeader = {0};
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static GameCardInfo g_gameCardInfoArea = {0};
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static u64 g_gameCardNormalAreaSize = 0, g_gameCardSecureAreaSize = 0, g_gameCardTotalSize = 0;
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static u64 g_gameCardCapacity = 0;
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static u32 g_gameCardHfsCount = 0;
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static HashFileSystemContext **g_gameCardHfsCtx = NULL;
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static MemoryLocation g_fsProgramMemory = {
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.program_id = FS_SYSMODULE_TID,
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.mask = 0,
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.data = NULL,
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.data_size = 0
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};
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static const char *g_gameCardHfsPartitionNames[] = {
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[GAMECARD_HFS_PARTITION_NAME_INDEX(GameCardHashFileSystemPartitionType_Root)] = "root",
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[GAMECARD_HFS_PARTITION_NAME_INDEX(GameCardHashFileSystemPartitionType_Update)] = "update",
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[GAMECARD_HFS_PARTITION_NAME_INDEX(GameCardHashFileSystemPartitionType_Logo)] = "logo",
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[GAMECARD_HFS_PARTITION_NAME_INDEX(GameCardHashFileSystemPartitionType_Normal)] = "normal",
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[GAMECARD_HFS_PARTITION_NAME_INDEX(GameCardHashFileSystemPartitionType_Secure)] = "secure",
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[GAMECARD_HFS_PARTITION_NAME_INDEX(GameCardHashFileSystemPartitionType_Boot)] = "boot"
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};
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/* Function prototypes. */
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static bool gamecardGetLotusAsicFirmwareVersion(void);
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static bool gamecardCreateDetectionThread(void);
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static void gamecardDestroyDetectionThread(void);
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static void gamecardDetectionThreadFunc(void *arg);
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NX_INLINE bool gamecardIsInserted(void);
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static void gamecardLoadInfo(void);
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static void gamecardFreeInfo(bool clear_status);
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static bool gamecardReadHeader(void);
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static bool _gamecardGetDecryptedCardInfoArea(void);
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static bool gamecardReadInitialData(GameCardKeyArea *out);
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static bool gamecardGetHandleAndStorage(u32 partition);
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NX_INLINE void gamecardCloseHandle(void);
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static bool gamecardOpenStorageArea(u8 area);
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static bool gamecardReadStorageArea(void *out, u64 read_size, u64 offset);
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static void gamecardCloseStorageArea(void);
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static bool gamecardGetStorageAreasSizes(void);
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NX_INLINE u64 gamecardGetCapacityFromRomSizeValue(u8 rom_size);
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static HashFileSystemContext *gamecardInitializeHashFileSystemContext(const char *name, u64 offset, u64 size, u8 *hash, u64 hash_target_offset, u32 hash_target_size);
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static HashFileSystemContext *_gamecardGetHashFileSystemContext(u8 hfs_partition_type);
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bool gamecardInitialize(void)
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{
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Result rc = 0;
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bool ret = false;
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SCOPED_LOCK(&g_gameCardMutex)
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{
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ret = g_gameCardInterfaceInit;
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if (ret) break;
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/* Allocate memory for the gamecard read buffer. */
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g_gameCardReadBuf = malloc(GAMECARD_READ_BUFFER_SIZE);
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if (!g_gameCardReadBuf)
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{
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LOG_MSG("Unable to allocate memory for the gamecard read buffer!");
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break;
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}
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/* Open device operator. */
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rc = fsOpenDeviceOperator(&g_deviceOperator);
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if (R_FAILED(rc))
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{
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LOG_MSG("fsOpenDeviceOperator failed! (0x%08X).", rc);
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break;
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}
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g_openDeviceOperator = true;
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/* Open gamecard detection event notifier. */
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rc = fsOpenGameCardDetectionEventNotifier(&g_gameCardEventNotifier);
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if (R_FAILED(rc))
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{
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LOG_MSG("fsOpenGameCardDetectionEventNotifier failed! (0x%08X)", rc);
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break;
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}
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g_openEventNotifier = true;
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/* Retrieve gamecard detection kernel event. */
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rc = fsEventNotifierGetEventHandle(&g_gameCardEventNotifier, &g_gameCardKernelEvent, true);
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if (R_FAILED(rc))
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{
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LOG_MSG("fsEventNotifierGetEventHandle failed! (0x%08X)", rc);
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break;
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}
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g_loadKernelEvent = true;
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/* Create user-mode exit event. */
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ueventCreate(&g_gameCardDetectionThreadExitEvent, true);
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/* Create user-mode gamecard status change event. */
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ueventCreate(&g_gameCardStatusChangeEvent, true);
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/* Retrieve LAFW version. */
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if (!gamecardGetLotusAsicFirmwareVersion()) break;
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/* Create gamecard detection thread. */
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if (!(g_gameCardDetectionThreadCreated = gamecardCreateDetectionThread())) break;
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/* Update flags. */
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ret = g_gameCardInterfaceInit = true;
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}
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return ret;
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}
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void gamecardExit(void)
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{
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SCOPED_LOCK(&g_gameCardMutex)
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{
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/* Destroy gamecard detection thread. */
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if (g_gameCardDetectionThreadCreated)
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{
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gamecardDestroyDetectionThread();
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g_gameCardDetectionThreadCreated = false;
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}
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/* Close gamecard detection kernel event. */
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if (g_loadKernelEvent)
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{
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eventClose(&g_gameCardKernelEvent);
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g_loadKernelEvent = false;
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}
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/* Close gamecard detection event notifier. */
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if (g_openEventNotifier)
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{
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fsEventNotifierClose(&g_gameCardEventNotifier);
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g_openEventNotifier = false;
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}
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/* Close device operator. */
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if (g_openDeviceOperator)
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{
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fsDeviceOperatorClose(&g_deviceOperator);
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g_openDeviceOperator = false;
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}
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/* Free gamecard read buffer. */
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if (g_gameCardReadBuf)
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{
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free(g_gameCardReadBuf);
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g_gameCardReadBuf = NULL;
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}
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g_gameCardInterfaceInit = false;
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}
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}
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UEvent *gamecardGetStatusChangeUserEvent(void)
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{
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UEvent *event = NULL;
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SCOPED_LOCK(&g_gameCardMutex)
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{
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if (g_gameCardInterfaceInit) event = &g_gameCardStatusChangeEvent;
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}
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return event;
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}
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u8 gamecardGetStatus(void)
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{
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u8 status = GameCardStatus_Processing;
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SCOPED_TRY_LOCK(&g_gameCardMutex)
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{
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if (g_gameCardInterfaceInit) status = g_gameCardStatus;
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}
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return status;
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}
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bool gamecardReadStorage(void *out, u64 read_size, u64 offset)
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{
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bool ret = false;
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SCOPED_LOCK(&g_gameCardMutex) ret = gamecardReadStorageArea(out, read_size, offset);
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return ret;
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}
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/* Read full FS program memory to retrieve the GameCardInitialData block, which is part of the GameCardKeyArea block. */
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/* In FS program memory, this is stored as part of the GameCardSecurityInformation struct, which is returned by Lotus command "ChangeToSecureMode" (0xF). */
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/* This means it is only available *after* the gamecard secure area has been mounted, which is taken care of in gamecardReadInitialData(). */
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/* The GameCardSecurityInformation struct is only kept for documentation purposes. It isn't used at all to retrieve the GameCardInitialData block. */
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bool gamecardGetKeyArea(GameCardKeyArea *out)
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{
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bool ret = false;
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SCOPED_LOCK(&g_gameCardMutex) ret = gamecardReadInitialData(out);
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return ret;
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}
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bool gamecardGetHeader(GameCardHeader *out)
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{
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bool ret = false;
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SCOPED_LOCK(&g_gameCardMutex)
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{
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ret = (g_gameCardInterfaceInit && g_gameCardStatus == GameCardStatus_InsertedAndInfoLoaded && out);
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if (ret) memcpy(out, &g_gameCardHeader, sizeof(GameCardHeader));
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}
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return ret;
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}
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bool gamecardGetDecryptedCardInfoArea(GameCardInfo *out)
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{
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bool ret = false;
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SCOPED_LOCK(&g_gameCardMutex)
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{
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ret = (g_gameCardInterfaceInit && g_gameCardStatus == GameCardStatus_InsertedAndInfoLoaded && out);
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if (ret) memcpy(out, &g_gameCardInfoArea, sizeof(GameCardInfo));
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}
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return ret;
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}
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bool gamecardGetCertificate(FsGameCardCertificate *out)
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{
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bool ret = false;
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SCOPED_LOCK(&g_gameCardMutex)
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{
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if (!g_gameCardInterfaceInit || g_gameCardStatus != GameCardStatus_InsertedAndInfoLoaded || !g_gameCardHandle.value || !out) break;
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/* Read the gamecard certificate using the official IPC call. */
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Result rc = fsDeviceOperatorGetGameCardDeviceCertificate(&g_deviceOperator, &g_gameCardHandle, out);
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if (R_FAILED(rc)) LOG_MSG("fsDeviceOperatorGetGameCardDeviceCertificate failed! (0x%08X)", rc);
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ret = R_SUCCEEDED(rc);
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}
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return ret;
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}
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bool gamecardGetTotalSize(u64 *out)
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{
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bool ret = false;
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SCOPED_LOCK(&g_gameCardMutex)
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{
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ret = (g_gameCardInterfaceInit && g_gameCardStatus == GameCardStatus_InsertedAndInfoLoaded && out);
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if (ret) *out = g_gameCardTotalSize;
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}
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return ret;
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}
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bool gamecardGetTrimmedSize(u64 *out)
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{
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bool ret = false;
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SCOPED_LOCK(&g_gameCardMutex)
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{
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ret = (g_gameCardInterfaceInit && g_gameCardStatus == GameCardStatus_InsertedAndInfoLoaded && out);
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if (ret) *out = (sizeof(GameCardHeader) + GAMECARD_PAGE_OFFSET(g_gameCardHeader.valid_data_end_address));
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}
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return ret;
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}
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bool gamecardGetRomCapacity(u64 *out)
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{
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bool ret = false;
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SCOPED_LOCK(&g_gameCardMutex)
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{
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ret = (g_gameCardInterfaceInit && g_gameCardStatus == GameCardStatus_InsertedAndInfoLoaded && out);
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if (ret) *out = g_gameCardCapacity;
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}
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return ret;
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}
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bool gamecardGetBundledFirmwareUpdateVersion(VersionType1 *out)
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{
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bool ret = false;
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SCOPED_LOCK(&g_gameCardMutex)
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{
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if (!g_gameCardInterfaceInit || g_gameCardStatus != GameCardStatus_InsertedAndInfoLoaded || !g_gameCardHandle.value || !out) break;
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u64 update_id = 0;
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u32 update_version = 0;
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Result rc = fsDeviceOperatorUpdatePartitionInfo(&g_deviceOperator, &g_gameCardHandle, &update_version, &update_id);
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if (R_FAILED(rc)) LOG_MSG("fsDeviceOperatorUpdatePartitionInfo failed! (0x%08X)", rc);
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ret = (R_SUCCEEDED(rc) && update_id == GAMECARD_UPDATE_TID);
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if (ret) out->value = update_version;
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}
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return ret;
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}
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bool gamecardGetHashFileSystemContext(u8 hfs_partition_type, HashFileSystemContext *out)
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{
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if (!hfs_partition_type || hfs_partition_type >= GameCardHashFileSystemPartitionType_Count || !out)
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{
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LOG_MSG("Invalid parameters!");
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return false;
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}
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bool ret = false;
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/* Free Hash FS context. */
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hfsFreeContext(out);
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SCOPED_LOCK(&g_gameCardMutex)
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{
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/* Get pointer to the Hash FS context for the requested partition. */
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HashFileSystemContext *fs_ctx = _gamecardGetHashFileSystemContext(hfs_partition_type);
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if (!fs_ctx) break;
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/* Fill Hash FS context. */
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out->name = strdup(fs_ctx->name);
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if (!out->name)
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{
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LOG_MSG("Failed to duplicate Hash FS partition name! (%s).", fs_ctx->name);
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break;
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}
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out->type = fs_ctx->type;
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out->offset = fs_ctx->offset;
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out->size = fs_ctx->size;
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out->header_size = fs_ctx->header_size;
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out->header = calloc(fs_ctx->header_size, sizeof(u8));
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if (!out->header)
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{
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LOG_MSG("Failed to duplicate Hash FS partition header! (%s).", fs_ctx->name);
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break;
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}
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memcpy(out->header, fs_ctx->header, fs_ctx->header_size);
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/* Update flag. */
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ret = true;
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}
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if (!ret) hfsFreeContext(out);
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return ret;
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}
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bool gamecardGetHashFileSystemEntryInfoByName(u8 hfs_partition_type, const char *entry_name, u64 *out_offset, u64 *out_size)
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{
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if (!hfs_partition_type || hfs_partition_type >= GameCardHashFileSystemPartitionType_Count || !entry_name || !*entry_name || (!out_offset && !out_size))
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{
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LOG_MSG("Invalid parameters!");
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return false;
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}
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bool ret = false;
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SCOPED_LOCK(&g_gameCardMutex)
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{
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/* Get pointer to the Hash FS context for the requested partition. */
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HashFileSystemContext *fs_ctx = _gamecardGetHashFileSystemContext(hfs_partition_type);
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if (!fs_ctx) break;
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/* Get Hash FS entry by name. */
|
|
HashFileSystemEntry *fs_entry = hfsGetEntryByName(fs_ctx, entry_name);
|
|
if (!fs_entry) break;
|
|
|
|
/* Update output variables. */
|
|
if (out_offset) *out_offset = (fs_ctx->offset + fs_ctx->header_size + fs_entry->offset);
|
|
if (out_size) *out_size = fs_entry->size;
|
|
|
|
/* Update flag. */
|
|
ret = true;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static bool gamecardGetLotusAsicFirmwareVersion(void)
|
|
{
|
|
u64 fw_version = 0;
|
|
bool ret = false, found = false, dev_unit = utilsIsDevelopmentUnit();
|
|
|
|
/* Temporarily set the segment mask to .data. */
|
|
g_fsProgramMemory.mask = MemoryProgramSegmentType_Data;
|
|
|
|
/* Retrieve full FS program memory dump. */
|
|
ret = memRetrieveProgramMemorySegment(&g_fsProgramMemory);
|
|
|
|
/* Clear segment mask. */
|
|
g_fsProgramMemory.mask = 0;
|
|
|
|
if (!ret)
|
|
{
|
|
LOG_MSG("Failed to retrieve FS .data segment dump!");
|
|
goto end;
|
|
}
|
|
|
|
/* Look for the LAFW ReadFw blob in the FS .data memory dump. */
|
|
for(u64 offset = 0; offset < g_fsProgramMemory.data_size; offset++)
|
|
{
|
|
if ((g_fsProgramMemory.data_size - offset) < sizeof(LotusAsicFirmwareBlob)) break;
|
|
|
|
LotusAsicFirmwareBlob *lafw_blob = (LotusAsicFirmwareBlob*)(g_fsProgramMemory.data + offset);
|
|
u32 magic = __builtin_bswap32(lafw_blob->magic), fw_type = lafw_blob->fw_type;
|
|
|
|
if (magic == LAFW_MAGIC && ((!dev_unit && fw_type == LotusAsicFirmwareType_ReadFw) || (dev_unit && fw_type == LotusAsicFirmwareType_ReadDevFw)))
|
|
{
|
|
/* Jackpot. */
|
|
fw_version = lafw_blob->fw_version;
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!found)
|
|
{
|
|
LOG_MSG("Unable to locate Lotus %s blob in FS .data segment!", dev_unit ? "ReadDevFw" : "ReadFw");
|
|
goto end;
|
|
}
|
|
|
|
/* Convert LAFW version bitmask to an integer. */
|
|
g_lafwVersion = 0;
|
|
|
|
while(fw_version)
|
|
{
|
|
g_lafwVersion += (fw_version & 1);
|
|
fw_version >>= 1;
|
|
}
|
|
|
|
LOG_MSG("LAFW version: %lu.", g_lafwVersion);
|
|
|
|
/* Update flag. */
|
|
ret = true;
|
|
|
|
end:
|
|
memFreeMemoryLocation(&g_fsProgramMemory);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static bool gamecardCreateDetectionThread(void)
|
|
{
|
|
if (!utilsCreateThread(&g_gameCardDetectionThread, gamecardDetectionThreadFunc, NULL, 1))
|
|
{
|
|
LOG_MSG("Failed to create gamecard detection thread!");
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static void gamecardDestroyDetectionThread(void)
|
|
{
|
|
/* Signal the exit event to terminate the gamecard detection thread. */
|
|
ueventSignal(&g_gameCardDetectionThreadExitEvent);
|
|
|
|
/* Wait for the gamecard detection thread to exit. */
|
|
utilsJoinThread(&g_gameCardDetectionThread);
|
|
}
|
|
|
|
static void gamecardDetectionThreadFunc(void *arg)
|
|
{
|
|
(void)arg;
|
|
|
|
Result rc = 0;
|
|
int idx = 0;
|
|
|
|
Waiter gamecard_event_waiter = waiterForEvent(&g_gameCardKernelEvent);
|
|
Waiter exit_event_waiter = waiterForUEvent(&g_gameCardDetectionThreadExitEvent);
|
|
|
|
/* Retrieve initial gamecard insertion status. */
|
|
/* Load gamecard info right away if a gamecard is inserted, then signal the user mode gamecard status change event. */
|
|
SCOPED_LOCK(&g_gameCardMutex)
|
|
{
|
|
if (gamecardIsInserted()) gamecardLoadInfo();
|
|
ueventSignal(&g_gameCardStatusChangeEvent);
|
|
}
|
|
|
|
while(true)
|
|
{
|
|
/* Wait until an event is triggered. */
|
|
rc = waitMulti(&idx, -1, gamecard_event_waiter, exit_event_waiter);
|
|
if (R_FAILED(rc)) continue;
|
|
|
|
/* Exit event triggered. */
|
|
if (idx == 1) break;
|
|
|
|
SCOPED_LOCK(&g_gameCardMutex)
|
|
{
|
|
/* Free gamecard info before proceeding. */
|
|
gamecardFreeInfo(true);
|
|
|
|
/* Retrieve current gamecard insertion status. */
|
|
/* Only proceed if we're dealing with a status change. */
|
|
if (gamecardIsInserted())
|
|
{
|
|
/* Don't access the gamecard immediately to avoid conflicts with HOS / sysmodules. */
|
|
utilsSleep(GAMECARD_ACCESS_WAIT_TIME);
|
|
|
|
/* Load gamecard info. */
|
|
gamecardLoadInfo();
|
|
}
|
|
|
|
/* Signal user mode gamecard status change event. */
|
|
ueventSignal(&g_gameCardStatusChangeEvent);
|
|
}
|
|
}
|
|
|
|
/* Free gamecard info and close gamecard handle. */
|
|
gamecardFreeInfo(true);
|
|
|
|
threadExit();
|
|
}
|
|
|
|
NX_INLINE bool gamecardIsInserted(void)
|
|
{
|
|
bool inserted = false;
|
|
Result rc = fsDeviceOperatorIsGameCardInserted(&g_deviceOperator, &inserted);
|
|
if (R_FAILED(rc)) LOG_MSG("fsDeviceOperatorIsGameCardInserted failed! (0x%08X)", rc);
|
|
return (R_SUCCEEDED(rc) && inserted);
|
|
}
|
|
|
|
static void gamecardLoadInfo(void)
|
|
{
|
|
if (g_gameCardStatus == GameCardStatus_InsertedAndInfoLoaded) return;
|
|
|
|
HashFileSystemContext *root_fs_ctx = NULL;
|
|
u32 root_fs_entry_count = 0, root_fs_name_table_size = 0;
|
|
char *root_fs_name_table = NULL;
|
|
|
|
/* Set initial gamecard status. */
|
|
g_gameCardStatus = GameCardStatus_InsertedAndInfoNotLoaded;
|
|
|
|
/* Read gamecard header. */
|
|
/* This step *will* fail if the running CFW enabled the "nogc" patch. */
|
|
/* gamecardGetHandleAndStorage() takes care of updating the gamecard status accordingly if this happens. */
|
|
if (!gamecardReadHeader()) goto end;
|
|
|
|
/* Get decrypted CardInfo area from header. */
|
|
if (!_gamecardGetDecryptedCardInfoArea()) goto end;
|
|
|
|
/* Check if we meet the Lotus ASIC firmware (LAFW) version requirement. */
|
|
if (g_lafwVersion < g_gameCardInfoArea.fw_version)
|
|
{
|
|
LOG_MSG("LAFW version doesn't meet gamecard requirement! (%lu < %lu).", g_lafwVersion, g_gameCardInfoArea.fw_version);
|
|
g_gameCardStatus = GameCardStatus_LotusAsicFirmwareUpdateRequired;
|
|
goto end;
|
|
}
|
|
|
|
/* Retrieve gamecard storage area sizes. */
|
|
/* gamecardReadStorageArea() actually checks if the storage area sizes are greater than zero, so we must perform this step. */
|
|
if (!gamecardGetStorageAreasSizes())
|
|
{
|
|
LOG_MSG("Failed to retrieve gamecard storage area sizes!");
|
|
goto end;
|
|
}
|
|
|
|
/* Get gamecard capacity. */
|
|
g_gameCardCapacity = gamecardGetCapacityFromRomSizeValue(g_gameCardHeader.rom_size);
|
|
if (!g_gameCardCapacity)
|
|
{
|
|
LOG_MSG("Invalid gamecard capacity value! (0x%02X).", g_gameCardHeader.rom_size);
|
|
goto end;
|
|
}
|
|
|
|
if (utilsGetCustomFirmwareType() == UtilsCustomFirmwareType_SXOS)
|
|
{
|
|
/* The total size for the secure storage area is maxed out under SX OS. */
|
|
/* Let's try to calculate it manually. */
|
|
g_gameCardSecureAreaSize = (g_gameCardCapacity - (g_gameCardNormalAreaSize + GAMECARD_UNUSED_AREA_SIZE(g_gameCardCapacity)));
|
|
}
|
|
|
|
/* Initialize Hash FS context for the root partition. */
|
|
root_fs_ctx = gamecardInitializeHashFileSystemContext(NULL, g_gameCardHeader.partition_fs_header_address, 0, g_gameCardHeader.partition_fs_header_hash, 0, g_gameCardHeader.partition_fs_header_size);
|
|
if (!root_fs_ctx) goto end;
|
|
|
|
/* Calculate total Hash FS partition count. */
|
|
root_fs_entry_count = hfsGetEntryCount(root_fs_ctx);
|
|
g_gameCardHfsCount = (root_fs_entry_count + 1);
|
|
|
|
/* Allocate Hash FS context pointer array. */
|
|
g_gameCardHfsCtx = calloc(g_gameCardHfsCount, sizeof(HashFileSystemContext*));
|
|
if (!g_gameCardHfsCtx)
|
|
{
|
|
LOG_MSG("Unable to allocate Hash FS context pointer array! (%u).", g_gameCardHfsCount);
|
|
goto end;
|
|
}
|
|
|
|
/* Set root partition context as the first pointer. */
|
|
g_gameCardHfsCtx[0] = root_fs_ctx;
|
|
|
|
/* Get root partition name table. */
|
|
root_fs_name_table_size = ((HashFileSystemHeader*)root_fs_ctx->header)->name_table_size;
|
|
root_fs_name_table = hfsGetNameTable(root_fs_ctx);
|
|
|
|
/* Initialize Hash FS contexts for the child partitions. */
|
|
for(u32 i = 0; i < root_fs_entry_count; i++)
|
|
{
|
|
HashFileSystemEntry *fs_entry = hfsGetEntryByIndex(root_fs_ctx, i);
|
|
char *fs_entry_name = (root_fs_name_table + fs_entry->name_offset);
|
|
u64 fs_entry_offset = (root_fs_ctx->offset + root_fs_ctx->header_size + fs_entry->offset);
|
|
|
|
if (fs_entry->name_offset >= root_fs_name_table_size || !*fs_entry_name)
|
|
{
|
|
LOG_MSG("Invalid name for root Hash FS partition entry #%u!", i);
|
|
goto end;
|
|
}
|
|
|
|
g_gameCardHfsCtx[i + 1] = gamecardInitializeHashFileSystemContext(fs_entry_name, fs_entry_offset, fs_entry->size, fs_entry->hash, fs_entry->hash_target_offset, fs_entry->hash_target_size);
|
|
if (!g_gameCardHfsCtx[i + 1]) goto end;
|
|
}
|
|
|
|
/* Update gamecard status. */
|
|
g_gameCardStatus = GameCardStatus_InsertedAndInfoLoaded;
|
|
|
|
end:
|
|
if (g_gameCardStatus != GameCardStatus_InsertedAndInfoLoaded)
|
|
{
|
|
if (!g_gameCardHfsCtx && root_fs_ctx)
|
|
{
|
|
hfsFreeContext(root_fs_ctx);
|
|
free(root_fs_ctx);
|
|
}
|
|
|
|
gamecardFreeInfo(false);
|
|
}
|
|
}
|
|
|
|
static void gamecardFreeInfo(bool clear_status)
|
|
{
|
|
memset(&g_gameCardHeader, 0, sizeof(GameCardHeader));
|
|
|
|
memset(&g_gameCardInfoArea, 0, sizeof(GameCardInfo));
|
|
|
|
g_gameCardNormalAreaSize = g_gameCardSecureAreaSize = g_gameCardTotalSize = 0;
|
|
|
|
g_gameCardCapacity = 0;
|
|
|
|
if (g_gameCardHfsCtx)
|
|
{
|
|
for(u32 i = 0; i < g_gameCardHfsCount; i++)
|
|
{
|
|
HashFileSystemContext *cur_fs_ctx = g_gameCardHfsCtx[i];
|
|
if (cur_fs_ctx)
|
|
{
|
|
hfsFreeContext(cur_fs_ctx);
|
|
free(cur_fs_ctx);
|
|
}
|
|
}
|
|
|
|
free(g_gameCardHfsCtx);
|
|
g_gameCardHfsCtx = NULL;
|
|
}
|
|
|
|
g_gameCardHfsCount = 0;
|
|
|
|
gamecardCloseStorageArea();
|
|
|
|
if (clear_status) g_gameCardStatus = GameCardStatus_NotInserted;
|
|
}
|
|
|
|
static bool gamecardReadHeader(void)
|
|
{
|
|
/* Open normal storage area. */
|
|
if (!gamecardOpenStorageArea(GameCardStorageArea_Normal))
|
|
{
|
|
LOG_MSG("Failed to open normal storage area!");
|
|
return false;
|
|
}
|
|
|
|
/* Read gamecard header. */
|
|
/* This step doesn't rely on gamecardReadStorageArea() because of its dependence on storage area sizes (which we haven't retrieved). */
|
|
Result rc = fsStorageRead(&g_gameCardStorage, 0, &g_gameCardHeader, sizeof(GameCardHeader));
|
|
if (R_FAILED(rc))
|
|
{
|
|
LOG_MSG("fsStorageRead failed to read gamecard header! (0x%08X).", rc);
|
|
return false;
|
|
}
|
|
|
|
//LOG_DATA(&g_gameCardHeader, sizeof(GameCardHeader), "Gamecard header dump:");
|
|
|
|
/* Check magic word from gamecard header. */
|
|
if (__builtin_bswap32(g_gameCardHeader.magic) != GAMECARD_HEAD_MAGIC)
|
|
{
|
|
LOG_MSG("Invalid gamecard header magic word! (0x%08X).", __builtin_bswap32(g_gameCardHeader.magic));
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool _gamecardGetDecryptedCardInfoArea(void)
|
|
{
|
|
const u8 *card_info_key = NULL;
|
|
u8 card_info_iv[AES_128_KEY_SIZE] = {0};
|
|
Aes128CbcContext aes_ctx = {0};
|
|
|
|
/* Retrieve CardInfo area key. */
|
|
card_info_key = keysGetGameCardInfoKey();
|
|
if (!card_info_key)
|
|
{
|
|
LOG_MSG("Failed to retrieve CardInfo area key!");
|
|
return false;
|
|
}
|
|
|
|
/* Reverse CardInfo IV. */
|
|
for(u8 i = 0; i < AES_128_KEY_SIZE; i++) card_info_iv[i] = g_gameCardHeader.card_info_iv[AES_128_KEY_SIZE - i - 1];
|
|
|
|
/* Initialize AES-128-CBC context. */
|
|
aes128CbcContextCreate(&aes_ctx, card_info_key, card_info_iv, false);
|
|
|
|
/* Decrypt CardInfo area. */
|
|
aes128CbcDecrypt(&aes_ctx, &g_gameCardInfoArea, &(g_gameCardHeader.card_info), sizeof(GameCardInfo));
|
|
|
|
//LOG_DATA(&g_gameCardInfoArea, sizeof(GameCardInfo), "Gamecard CardInfo area dump:");
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool gamecardReadInitialData(GameCardKeyArea *out)
|
|
{
|
|
if (!g_gameCardInterfaceInit || g_gameCardStatus != GameCardStatus_InsertedAndInfoLoaded || !out)
|
|
{
|
|
LOG_MSG("Invalid parameters!");
|
|
return false;
|
|
}
|
|
|
|
/* Clear output. */
|
|
memset(out, 0, sizeof(GameCardKeyArea));
|
|
|
|
/* Open secure storage area. */
|
|
if (!gamecardOpenStorageArea(GameCardStorageArea_Secure))
|
|
{
|
|
LOG_MSG("Failed to open secure storage area!");
|
|
return false;
|
|
}
|
|
|
|
bool found = false;
|
|
u8 tmp_hash[SHA256_HASH_SIZE] = {0};
|
|
|
|
/* Retrieve full FS program memory dump. */
|
|
if (!memRetrieveFullProgramMemory(&g_fsProgramMemory))
|
|
{
|
|
LOG_MSG("Failed to retrieve full FS program memory dump!");
|
|
return false;
|
|
}
|
|
|
|
/* Look for the initial data block in the FS memory dump using the package ID and the initial data hash from the gamecard header. */
|
|
for(u64 offset = 0; offset < g_fsProgramMemory.data_size; offset++)
|
|
{
|
|
if ((g_fsProgramMemory.data_size - offset) < sizeof(GameCardInitialData)) break;
|
|
|
|
if (memcmp(g_fsProgramMemory.data + offset, &(g_gameCardHeader.package_id), sizeof(g_gameCardHeader.package_id)) != 0) continue;
|
|
|
|
sha256CalculateHash(tmp_hash, g_fsProgramMemory.data + offset, sizeof(GameCardInitialData));
|
|
|
|
if (!memcmp(tmp_hash, g_gameCardHeader.initial_data_hash, SHA256_HASH_SIZE))
|
|
{
|
|
/* Jackpot. */
|
|
memcpy(&(out->initial_data), g_fsProgramMemory.data + offset, sizeof(GameCardInitialData));
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Free FS memory dump. */
|
|
memFreeMemoryLocation(&g_fsProgramMemory);
|
|
|
|
return found;
|
|
}
|
|
|
|
static bool gamecardGetHandleAndStorage(u32 partition)
|
|
{
|
|
if (g_gameCardStatus < GameCardStatus_InsertedAndInfoNotLoaded || partition > 1)
|
|
{
|
|
LOG_MSG("Invalid parameters!");
|
|
return false;
|
|
}
|
|
|
|
Result rc = 0;
|
|
|
|
/* 10 tries. */
|
|
for(u8 i = 0; i < 10; i++)
|
|
{
|
|
/* 100 ms wait in case there was an error in the previous loop. */
|
|
if (R_FAILED(rc)) svcSleepThread(100000000);
|
|
|
|
/* First, let's try to retrieve a gamecard handle. */
|
|
/* This can return an error if the "nogc" patch is enabled by the running CFW (most commonly 0x140A02). */
|
|
rc = fsDeviceOperatorGetGameCardHandle(&g_deviceOperator, &g_gameCardHandle);
|
|
if (R_FAILED(rc))
|
|
{
|
|
//LOG_MSG("fsDeviceOperatorGetGameCardHandle failed on try #%u! (0x%08X).", i + 1, rc);
|
|
continue;
|
|
}
|
|
|
|
/* If the previous call succeeded, let's try to open the desired gamecard storage area. */
|
|
rc = fsOpenGameCardStorage(&g_gameCardStorage, &g_gameCardHandle, partition);
|
|
if (R_FAILED(rc))
|
|
{
|
|
gamecardCloseHandle(); /* Close invalid gamecard handle. */
|
|
//LOG_MSG("fsOpenGameCardStorage failed to open %s storage area on try #%u! (0x%08X).", GAMECARD_STORAGE_AREA_NAME(partition + 1), i + 1, rc);
|
|
continue;
|
|
}
|
|
|
|
/* If we got up to this point, both a valid gamecard handle and a valid storage area handle are guaranteed. */
|
|
break;
|
|
}
|
|
|
|
if (R_FAILED(rc))
|
|
{
|
|
LOG_MSG("fsDeviceOperatorGetGameCardHandle / fsOpenGameCardStorage failed! (0x%08X).", rc);
|
|
if (g_gameCardStatus == GameCardStatus_InsertedAndInfoNotLoaded && partition == 0) g_gameCardStatus = GameCardStatus_NoGameCardPatchEnabled;
|
|
}
|
|
|
|
return R_SUCCEEDED(rc);
|
|
}
|
|
|
|
NX_INLINE void gamecardCloseHandle(void)
|
|
{
|
|
/* TO DO: find a way to properly close a gamecard handle. */
|
|
if (!g_gameCardHandle.value) return;
|
|
svcCloseHandle(g_gameCardHandle.value);
|
|
g_gameCardHandle.value = 0;
|
|
}
|
|
|
|
static bool gamecardOpenStorageArea(u8 area)
|
|
{
|
|
if (g_gameCardStatus < GameCardStatus_InsertedAndInfoNotLoaded || (area != GameCardStorageArea_Normal && area != GameCardStorageArea_Secure))
|
|
{
|
|
LOG_MSG("Invalid parameters!");
|
|
return false;
|
|
}
|
|
|
|
/* Return right away if a valid handle has already been retrieved and the desired gamecard storage area is currently open. */
|
|
if (g_gameCardHandle.value && serviceIsActive(&(g_gameCardStorage.s)) && g_gameCardCurrentStorageArea == area) return true;
|
|
|
|
/* Close both gamecard handle and open storage area. */
|
|
gamecardCloseStorageArea();
|
|
|
|
/* Retrieve both a new gamecard handle and a storage area handle. */
|
|
if (!gamecardGetHandleAndStorage(area - 1)) /* Zero-based index. */
|
|
{
|
|
LOG_MSG("Failed to retrieve gamecard handle and storage area handle! (%s).", GAMECARD_STORAGE_AREA_NAME(area));
|
|
return false;
|
|
}
|
|
|
|
/* Update current gamecard storage area. */
|
|
g_gameCardCurrentStorageArea = area;
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool gamecardReadStorageArea(void *out, u64 read_size, u64 offset)
|
|
{
|
|
if (g_gameCardStatus < GameCardStatus_InsertedAndInfoNotLoaded || !g_gameCardNormalAreaSize || !g_gameCardSecureAreaSize || !out || !read_size || (offset + read_size) > g_gameCardTotalSize)
|
|
{
|
|
LOG_MSG("Invalid parameters!");
|
|
return false;
|
|
}
|
|
|
|
Result rc = 0;
|
|
u8 *out_u8 = (u8*)out;
|
|
u8 area = (offset < g_gameCardNormalAreaSize ? GameCardStorageArea_Normal : GameCardStorageArea_Secure);
|
|
bool success = false;
|
|
|
|
/* Handle reads that span both the normal and secure gamecard storage areas. */
|
|
if (area == GameCardStorageArea_Normal && (offset + read_size) > g_gameCardNormalAreaSize)
|
|
{
|
|
/* Calculate normal storage area size difference. */
|
|
u64 diff_size = (g_gameCardNormalAreaSize - offset);
|
|
|
|
/* Read normal storage area data. */
|
|
if (!gamecardReadStorageArea(out_u8, diff_size, offset)) goto end;
|
|
|
|
/* Adjust variables to read right from the start of the secure storage area. */
|
|
read_size -= diff_size;
|
|
offset = g_gameCardNormalAreaSize;
|
|
out_u8 += diff_size;
|
|
area = GameCardStorageArea_Secure;
|
|
}
|
|
|
|
/* Open a storage area if needed. */
|
|
/* If the right storage area has already been opened, this will return true. */
|
|
if (!gamecardOpenStorageArea(area))
|
|
{
|
|
LOG_MSG("Failed to open %s storage area!", GAMECARD_STORAGE_AREA_NAME(area));
|
|
goto end;
|
|
}
|
|
|
|
/* Calculate proper storage area offset. */
|
|
u64 base_offset = (area == GameCardStorageArea_Normal ? offset : (offset - g_gameCardNormalAreaSize));
|
|
|
|
if (!(base_offset % GAMECARD_PAGE_SIZE) && !(read_size % GAMECARD_PAGE_SIZE))
|
|
{
|
|
/* Optimization for reads that are already aligned to a GAMECARD_PAGE_SIZE boundary. */
|
|
rc = fsStorageRead(&g_gameCardStorage, base_offset, out_u8, read_size);
|
|
if (R_FAILED(rc))
|
|
{
|
|
LOG_MSG("fsStorageRead failed to read 0x%lX bytes at offset 0x%lX from %s storage area! (0x%08X) (aligned).", read_size, base_offset, GAMECARD_STORAGE_AREA_NAME(area), rc);
|
|
goto end;
|
|
}
|
|
|
|
success = true;
|
|
} else {
|
|
/* Fix offset and/or size to avoid unaligned reads. */
|
|
u64 block_start_offset = ALIGN_DOWN(base_offset, GAMECARD_PAGE_SIZE);
|
|
u64 block_end_offset = ALIGN_UP(base_offset + read_size, GAMECARD_PAGE_SIZE);
|
|
u64 block_size = (block_end_offset - block_start_offset);
|
|
|
|
u64 data_start_offset = (base_offset - block_start_offset);
|
|
u64 chunk_size = (block_size > GAMECARD_READ_BUFFER_SIZE ? GAMECARD_READ_BUFFER_SIZE : block_size);
|
|
u64 out_chunk_size = (block_size > GAMECARD_READ_BUFFER_SIZE ? (GAMECARD_READ_BUFFER_SIZE - data_start_offset) : read_size);
|
|
|
|
rc = fsStorageRead(&g_gameCardStorage, block_start_offset, g_gameCardReadBuf, chunk_size);
|
|
if (R_FAILED(rc))
|
|
{
|
|
LOG_MSG("fsStorageRead failed to read 0x%lX bytes at offset 0x%lX from %s storage area! (0x%08X) (unaligned).", chunk_size, block_start_offset, GAMECARD_STORAGE_AREA_NAME(area), rc);
|
|
goto end;
|
|
}
|
|
|
|
memcpy(out_u8, g_gameCardReadBuf + data_start_offset, out_chunk_size);
|
|
|
|
success = (block_size > GAMECARD_READ_BUFFER_SIZE ? gamecardReadStorageArea(out_u8 + out_chunk_size, read_size - out_chunk_size, offset + out_chunk_size) : true);
|
|
}
|
|
|
|
end:
|
|
return success;
|
|
}
|
|
|
|
static void gamecardCloseStorageArea(void)
|
|
{
|
|
if (serviceIsActive(&(g_gameCardStorage.s)))
|
|
{
|
|
fsStorageClose(&g_gameCardStorage);
|
|
memset(&g_gameCardStorage, 0, sizeof(FsStorage));
|
|
}
|
|
|
|
gamecardCloseHandle();
|
|
|
|
g_gameCardCurrentStorageArea = GameCardStorageArea_None;
|
|
}
|
|
|
|
static bool gamecardGetStorageAreasSizes(void)
|
|
{
|
|
for(u8 i = 0; i < 2; i++)
|
|
{
|
|
Result rc = 0;
|
|
u64 area_size = 0;
|
|
u8 area = (i == 0 ? GameCardStorageArea_Normal : GameCardStorageArea_Secure);
|
|
|
|
if (!gamecardOpenStorageArea(area))
|
|
{
|
|
LOG_MSG("Failed to open %s storage area!", GAMECARD_STORAGE_AREA_NAME(area));
|
|
return false;
|
|
}
|
|
|
|
rc = fsStorageGetSize(&g_gameCardStorage, (s64*)&area_size);
|
|
|
|
gamecardCloseStorageArea();
|
|
|
|
if (R_FAILED(rc) || !area_size)
|
|
{
|
|
LOG_MSG("fsStorageGetSize failed to retrieve %s storage area size! (0x%08X).", GAMECARD_STORAGE_AREA_NAME(area), rc);
|
|
return false;
|
|
}
|
|
|
|
if (area == GameCardStorageArea_Normal)
|
|
{
|
|
g_gameCardNormalAreaSize = area_size;
|
|
} else {
|
|
g_gameCardSecureAreaSize = area_size;
|
|
}
|
|
}
|
|
|
|
g_gameCardTotalSize = (g_gameCardNormalAreaSize + g_gameCardSecureAreaSize);
|
|
|
|
return true;
|
|
}
|
|
|
|
NX_INLINE u64 gamecardGetCapacityFromRomSizeValue(u8 rom_size)
|
|
{
|
|
u64 capacity = 0;
|
|
|
|
switch(rom_size)
|
|
{
|
|
case GameCardRomSize_1GiB:
|
|
capacity = GameCardCapacity_1GiB;
|
|
break;
|
|
case GameCardRomSize_2GiB:
|
|
capacity = GameCardCapacity_2GiB;
|
|
break;
|
|
case GameCardRomSize_4GiB:
|
|
capacity = GameCardCapacity_4GiB;
|
|
break;
|
|
case GameCardRomSize_8GiB:
|
|
capacity = GameCardCapacity_8GiB;
|
|
break;
|
|
case GameCardRomSize_16GiB:
|
|
capacity = GameCardCapacity_16GiB;
|
|
break;
|
|
case GameCardRomSize_32GiB:
|
|
capacity = GameCardCapacity_32GiB;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return capacity;
|
|
}
|
|
|
|
static HashFileSystemContext *gamecardInitializeHashFileSystemContext(const char *name, u64 offset, u64 size, u8 *hash, u64 hash_target_offset, u32 hash_target_size)
|
|
{
|
|
u32 i = 0, magic = 0;
|
|
HashFileSystemContext *fs_ctx = NULL;
|
|
HashFileSystemHeader fs_header = {0};
|
|
u8 fs_header_hash[SHA256_HASH_SIZE] = {0};
|
|
|
|
bool success = false, dump_fs_header = false;
|
|
|
|
if ((name && !*name) || offset < (GAMECARD_CERTIFICATE_OFFSET + sizeof(FsGameCardCertificate)) || !IS_ALIGNED(offset, GAMECARD_PAGE_SIZE) || \
|
|
(size && (!IS_ALIGNED(size, GAMECARD_PAGE_SIZE) || (offset + size) > g_gameCardTotalSize)))
|
|
{
|
|
LOG_MSG("Invalid parameters!");
|
|
goto end;
|
|
}
|
|
|
|
/* Allocate memory for the output context. */
|
|
fs_ctx = calloc(1, sizeof(HashFileSystemContext));
|
|
if (!fs_ctx)
|
|
{
|
|
LOG_MSG("Unable to allocate memory for Hash FS context! (offset 0x%lX).", offset);
|
|
goto end;
|
|
}
|
|
|
|
/* Duplicate partition name. */
|
|
fs_ctx->name = (name ? strdup(name) : strdup(g_gameCardHfsPartitionNames[GAMECARD_HFS_PARTITION_NAME_INDEX(GameCardHashFileSystemPartitionType_Root)]));
|
|
if (!fs_ctx->name)
|
|
{
|
|
LOG_MSG("Failed to duplicate Hash FS partition name! (offset 0x%lX).", offset);
|
|
goto end;
|
|
}
|
|
|
|
/* Determine Hash FS partition type. */
|
|
for(i = GameCardHashFileSystemPartitionType_Root; i < GameCardHashFileSystemPartitionType_Count; i++)
|
|
{
|
|
if (!strcmp(g_gameCardHfsPartitionNames[GAMECARD_HFS_PARTITION_NAME_INDEX(i)], fs_ctx->name)) break;
|
|
}
|
|
|
|
if (i >= GameCardHashFileSystemPartitionType_Count)
|
|
{
|
|
LOG_MSG("Failed to find a matching Hash FS partition type for \"%s\"! (offset 0x%lX).", fs_ctx->name, offset);
|
|
goto end;
|
|
}
|
|
|
|
fs_ctx->type = i;
|
|
|
|
/* Read partial Hash FS header. */
|
|
if (!gamecardReadStorageArea(&fs_header, sizeof(HashFileSystemHeader), offset))
|
|
{
|
|
LOG_MSG("Failed to read partial Hash FS header! (\"%s\", offset 0x%lX).", fs_ctx->name, offset);
|
|
goto end;
|
|
}
|
|
|
|
magic = __builtin_bswap32(fs_header.magic);
|
|
if (magic != HFS0_MAGIC)
|
|
{
|
|
LOG_MSG("Invalid Hash FS magic word! (0x%08X) (\"%s\", offset 0x%lX).", magic, fs_ctx->name, offset);
|
|
dump_fs_header = true;
|
|
goto end;
|
|
}
|
|
|
|
/* Check Hash FS entry count and name table size. */
|
|
/* Only allow a zero entry count if we're not dealing with the root partition. Never allow a zero-sized name table. */
|
|
if ((!name && !fs_header.entry_count) || !fs_header.name_table_size)
|
|
{
|
|
LOG_MSG("Invalid Hash FS entry count / name table size! (\"%s\", offset 0x%lX).", fs_ctx->name, offset);
|
|
dump_fs_header = true;
|
|
goto end;
|
|
}
|
|
|
|
/* Calculate full Hash FS header size. */
|
|
fs_ctx->header_size = (sizeof(HashFileSystemHeader) + (fs_header.entry_count * sizeof(HashFileSystemEntry)) + fs_header.name_table_size);
|
|
fs_ctx->header_size = ALIGN_UP(fs_ctx->header_size, GAMECARD_PAGE_SIZE);
|
|
|
|
/* Allocate memory for the full Hash FS header. */
|
|
fs_ctx->header = calloc(fs_ctx->header_size, sizeof(u8));
|
|
if (!fs_ctx->header)
|
|
{
|
|
LOG_MSG("Unable to allocate 0x%lX bytes buffer for the full Hash FS header! (\"%s\", offset 0x%lX).", fs_ctx->header_size, fs_ctx->name, offset);
|
|
goto end;
|
|
}
|
|
|
|
/* Read full Hash FS header. */
|
|
if (!gamecardReadStorageArea(fs_ctx->header, fs_ctx->header_size, offset))
|
|
{
|
|
LOG_MSG("Failed to read full Hash FS header! (\"%s\", offset 0x%lX).", fs_ctx->name, offset);
|
|
goto end;
|
|
}
|
|
|
|
/* Verify Hash FS header (if possible). */
|
|
if (hash && hash_target_size && (hash_target_offset + hash_target_size) <= fs_ctx->header_size)
|
|
{
|
|
sha256CalculateHash(fs_header_hash, fs_ctx->header + hash_target_offset, hash_target_size);
|
|
if (memcmp(fs_header_hash, hash, SHA256_HASH_SIZE) != 0)
|
|
{
|
|
LOG_MSG("Hash FS header doesn't match expected SHA-256 hash! (\"%s\", offset 0x%lX).", fs_ctx->name, offset);
|
|
goto end;
|
|
}
|
|
}
|
|
|
|
/* Fill context. */
|
|
fs_ctx->offset = offset;
|
|
|
|
if (name)
|
|
{
|
|
/* Use provided partition size. */
|
|
fs_ctx->size = size;
|
|
} else {
|
|
/* Calculate root partition size. */
|
|
HashFileSystemEntry *fs_entry = hfsGetEntryByIndex(fs_ctx, fs_header.entry_count - 1);
|
|
fs_ctx->size = (fs_ctx->header_size + fs_entry->offset + fs_entry->size);
|
|
}
|
|
|
|
/* Update flag. */
|
|
success = true;
|
|
|
|
end:
|
|
if (!success && fs_ctx)
|
|
{
|
|
if (dump_fs_header) LOG_DATA(&fs_header, sizeof(HashFileSystemHeader), "Partial Hash FS header dump (\"%s\", offset 0x%lX):", fs_ctx->name, offset);
|
|
|
|
if (fs_ctx->header) free(fs_ctx->header);
|
|
|
|
if (fs_ctx->name) free(fs_ctx->name);
|
|
|
|
free(fs_ctx);
|
|
fs_ctx = NULL;
|
|
}
|
|
|
|
return fs_ctx;
|
|
}
|
|
|
|
static HashFileSystemContext *_gamecardGetHashFileSystemContext(u8 hfs_partition_type)
|
|
{
|
|
HashFileSystemContext *fs_ctx = NULL;
|
|
|
|
if (!g_gameCardInterfaceInit || g_gameCardStatus != GameCardStatus_InsertedAndInfoLoaded || !g_gameCardHfsCount || !g_gameCardHfsCtx || !hfs_partition_type || \
|
|
hfs_partition_type >= GameCardHashFileSystemPartitionType_Count)
|
|
{
|
|
LOG_MSG("Invalid parameters!");
|
|
goto end;
|
|
}
|
|
|
|
/* Return right away if the root partition was requested. */
|
|
if (hfs_partition_type == GameCardHashFileSystemPartitionType_Root)
|
|
{
|
|
fs_ctx = g_gameCardHfsCtx[0];
|
|
goto end;
|
|
}
|
|
|
|
/* Try to find the requested partition by looping through our Hash FS contexts. */
|
|
for(u32 i = 1; i < g_gameCardHfsCount; i++)
|
|
{
|
|
fs_ctx = g_gameCardHfsCtx[i];
|
|
if (fs_ctx->type == hfs_partition_type) break;
|
|
fs_ctx = NULL;
|
|
}
|
|
|
|
if (!fs_ctx) LOG_MSG("Failed to locate Hash FS partition with type %u!", hfs_partition_type);
|
|
|
|
end:
|
|
return fs_ctx;
|
|
}
|