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nxdumptool/source/nca.h
2019-06-05 18:44:18 -04:00

362 lines
11 KiB
C

#pragma once
#ifndef __NCA_H__
#define __NCA_H__
#include <switch.h>
#define NCA3_MAGIC (u32)0x4E434133 // "NCA3"
#define NCA2_MAGIC (u32)0x4E434132 // "NCA2"
#define NCA_HEADER_LENGTH 0x400
#define NCA_SECTION_HEADER_LENGTH 0x200
#define NCA_SECTION_HEADER_CNT 4
#define NCA_FULL_HEADER_LENGTH (NCA_HEADER_LENGTH + (NCA_SECTION_HEADER_LENGTH * NCA_SECTION_HEADER_CNT))
#define NCA_CONTENT_TYPE_DELTA 0x06
#define NCA_AES_XTS_SECTOR_SIZE 0x200
#define NCA_KEY_AREA_KEY_CNT 4
#define NCA_KEY_AREA_KEY_SIZE 0x10
#define NCA_KEY_AREA_SIZE (NCA_KEY_AREA_KEY_CNT * NCA_KEY_AREA_KEY_SIZE)
#define NCA_FS_HEADER_PARTITION_PFS0 0x01
#define NCA_FS_HEADER_FSTYPE_PFS0 0x02
#define NCA_FS_HEADER_PARTITION_ROMFS 0x00
#define NCA_FS_HEADER_FSTYPE_ROMFS 0x03
#define NCA_FS_HEADER_CRYPT_NONE 0x01
#define NCA_FS_HEADER_CRYPT_XTS 0x02
#define NCA_FS_HEADER_CRYPT_CTR 0x03
#define NCA_FS_HEADER_CRYPT_BKTR 0x04
#define PFS0_MAGIC (u32)0x50465330 // "PFS0"
#define IVFC_MAGIC (u32)0x49564643 // "IVFC"
#define IVFC_MAX_LEVEL 6
#define ROMFS_HEADER_SIZE 0x50
#define ROMFS_ENTRY_EMPTY (u32)0xFFFFFFFF
#define ROMFS_NONAME_DIRENTRY_SIZE 0x18
#define ROMFS_NONAME_FILEENTRY_SIZE 0x20
#define ROMFS_ENTRY_DIR 1
#define ROMFS_ENTRY_FILE 2
#define META_MAGIC (u32)0x4D455441 // "META"
#define NPDM_SIGNATURE_SIZE 0x100
#define NPDM_SIGNATURE_AREA_SIZE 0x200
#define NSP_NCA_FILENAME_LENGTH 0x25 // NCA ID + ".nca" + NULL terminator
#define NSP_CNMT_FILENAME_LENGTH 0x2A // NCA ID + ".cnmt.nca" / ".cnmt.xml" + NULL terminator
#define NSP_NACP_FILENAME_LENGTH 0x2A // NCA ID + ".nacp.xml" + NULL terminator
#define NSP_TIK_FILENAME_LENGTH 0x25 // Rights ID + ".tik" + NULL terminator
#define NSP_CERT_FILENAME_LENGTH 0x26 // Rights ID + ".cert" + NULL terminator
typedef enum {
DUMP_APP_NSP = 0,
DUMP_PATCH_NSP,
DUMP_ADDON_NSP
} nspDumpType;
typedef struct {
u32 magic;
u32 file_cnt;
u32 str_table_size;
u32 reserved;
} PACKED pfs0_header;
typedef struct {
u64 file_offset;
u64 file_size;
u32 filename_offset;
u32 reserved;
} PACKED pfs0_entry_table;
typedef struct {
u32 media_start_offset;
u32 media_end_offset;
u8 _0x8[0x8]; /* Padding. */
} PACKED nca_section_entry_t;
typedef struct {
u8 master_hash[0x20]; /* SHA-256 hash of the hash table. */
u32 block_size; /* In bytes. */
u32 always_2;
u64 hash_table_offset; /* Normally zero. */
u64 hash_table_size;
u64 pfs0_offset;
u64 pfs0_size;
u8 _0x48[0xF0];
} PACKED pfs0_superblock_t;
typedef struct {
u64 logical_offset;
u64 hash_data_size;
u32 block_size;
u32 reserved;
} PACKED ivfc_level_hdr_t;
typedef struct {
u32 magic;
u32 id;
u32 master_hash_size;
u32 num_levels;
ivfc_level_hdr_t level_headers[IVFC_MAX_LEVEL];
u8 _0xA0[0x20];
u8 master_hash[0x20];
} PACKED ivfc_hdr_t;
typedef struct {
ivfc_hdr_t ivfc_header;
u8 _0xE0[0x58];
} PACKED romfs_superblock_t;
/* NCA FS header. */
typedef struct {
u8 _0x0;
u8 _0x1;
u8 partition_type;
u8 fs_type;
u8 crypt_type;
u8 _0x5[0x3];
union { /* FS-specific superblock. Size = 0x138. */
pfs0_superblock_t pfs0_superblock;
romfs_superblock_t romfs_superblock;
};
union {
u8 section_ctr[0x8];
struct {
u32 section_ctr_low;
u32 section_ctr_high;
};
};
u8 _0x148[0xB8]; /* Padding. */
} PACKED nca_fs_header_t;
/* Nintendo content archive header. */
typedef struct {
u8 fixed_key_sig[0x100]; /* RSA-PSS signature over header with fixed key. */
u8 npdm_key_sig[0x100]; /* RSA-PSS signature over header with key in NPDM. */
u32 magic;
u8 distribution; /* System vs gamecard. */
u8 content_type;
u8 crypto_type; /* Which keyblob (field 1) */
u8 kaek_ind; /* Which kaek index? */
u64 nca_size; /* Entire archive size. */
u64 title_id;
u8 _0x218[0x4]; /* Padding. */
union {
u32 sdk_version; /* What SDK was this built with? */
struct {
u8 sdk_revision;
u8 sdk_micro;
u8 sdk_minor;
u8 sdk_major;
};
};
u8 crypto_type2; /* Which keyblob (field 2) */
u8 _0x221[0xF]; /* Padding. */
u8 rights_id[0x10]; /* Rights ID (for titlekey crypto). */
nca_section_entry_t section_entries[4]; /* Section entry metadata. */
u8 section_hashes[4][0x20]; /* SHA-256 hashes for each section header. */
u8 nca_keys[4][0x10]; /* Key area (encrypted) */
u8 _0x340[0xC0]; /* Padding. */
nca_fs_header_t fs_headers[4]; /* FS section headers. */
} PACKED nca_header_t;
typedef struct {
u32 magic;
u32 _0x4;
u32 _0x8;
u8 mmu_flags;
u8 _0xD;
u8 main_thread_prio;
u8 default_cpuid;
u64 _0x10;
u32 process_category;
u32 main_stack_size;
char title_name[0x50];
u32 aci0_offset;
u32 aci0_size;
u32 acid_offset;
u32 acid_size;
} PACKED npdm_t;
typedef struct {
u64 title_id;
u32 version;
u8 type;
u8 unk1;
u16 table_offset;
u16 content_records_cnt;
u16 meta_records_cnt;
u8 unk2[12];
} PACKED cnmt_header;
typedef struct {
u64 patch_tid; /* Patch TID / Original TID / Application TID */
u32 min_sysver; /* Minimum system/application version */
} PACKED cnmt_extended_header;
typedef struct {
u8 hash[0x20];
u8 nca_id[0x10];
u8 size[6];
u8 type;
u8 unk;
} PACKED cnmt_content_record;
typedef struct {
u8 type;
u64 title_id;
u32 version;
u32 required_dl_sysver;
u32 nca_cnt;
u8 digest[32];
char digest_str[65];
u8 min_keyblob;
u32 min_sysver;
u64 patch_tid;
} PACKED cnmt_xml_program_info;
typedef struct {
u8 type;
u8 nca_id[16];
char nca_id_str[33];
u64 size;
u8 hash[32];
char hash_str[65];
u8 keyblob;
u8 decrypted_nca_keys[NCA_KEY_AREA_SIZE];
u8 encrypted_header_mod[NCA_FULL_HEADER_LENGTH];
} PACKED cnmt_xml_content_info;
typedef struct {
u8 *hash_table;
u64 hash_table_offset; // Relative to NCA start
u64 hash_table_size;
u8 block_mod_cnt;
u8 *block_data[2];
u64 block_offset[2]; // Relative to NCA start
u64 block_size[2];
} PACKED nca_program_mod_data;
typedef struct {
u64 section_offset; // Relative to NCA start
u64 section_size;
u64 hash_table_offset; // Relative to NCA start
u64 pfs0_offset; // Relative to NCA start
u64 pfs0_size;
u64 title_cnmt_offset; // Relative to NCA start
u64 title_cnmt_size;
} PACKED nca_cnmt_mod_data;
typedef struct {
NacpLanguageEntry lang[16];
char Isbn[0x25];
u8 StartupUserAccount;
u8 UserAccountSwitchLock;
u8 AddOnContentRegistrationType;
u32 AttributeFlag;
u32 SupportedLanguageFlag;
u32 ParentalControlFlag;
u8 Screenshot;
u8 VideoCapture;
u8 DataLossConfirmation;
u8 PlayLogPolicy;
u64 PresenceGroupId;
u8 RatingAge[0x20];
char DisplayVersion[0x10];
u64 AddOnContentBaseId;
u64 SaveDataOwnerId;
u64 UserAccountSaveDataSize;
u64 UserAccountSaveDataJournalSize;
u64 DeviceSaveDataSize;
u64 DeviceSaveDataJournalSize;
u64 BcatDeliveryCacheStorageSize;
char ApplicationErrorCodeCategory[0x8];
u64 LocalCommunicationId[0x8];
u8 LogoType;
u8 LogoHandling;
u8 RuntimeAddOnContentInstall;
u8 _0x30F3[0x3];
u8 CrashReport;
u8 Hdcp;
u64 SeedForPseudoDeviceId;
char BcatPassphrase[0x41];
u8 StartupUserAccountOptionFlag;
u8 ReservedForUserAccountSaveDataOperation[0x6];
u64 UserAccountSaveDataSizeMax;
u64 UserAccountSaveDataJournalSizeMax;
u64 DeviceSaveDataSizeMax;
u64 DeviceSaveDataJournalSizeMax;
u64 TemporaryStorageSize;
u64 CacheStorageSize;
u64 CacheStorageJournalSize;
u64 CacheStorageDataAndJournalSizeMax;
u16 CacheStorageIndexMax;
u8 reserved_0x318a[0x6];
u64 PlayLogQueryableApplicationId[0x10];
u8 PlayLogQueryCapability;
u8 RepairFlag;
u8 ProgramIndex;
u8 RequiredNetworkServiceLicenseOnLaunchFlag;
u8 Reserved[0xDEC];
} PACKED nacp_t;
typedef struct {
bool has_rights_id;
u8 rights_id[0x10];
char rights_id_str[33];
char tik_filename[37];
char cert_filename[38];
} PACKED title_rights_ctx;
typedef struct {
NcmContentStorage ncmStorage;
NcmNcaId ncaId;
Aes128CtrContext aes_ctx;
u64 romfs_offset; // Relative to NCA start
u64 romfs_size;
u64 romfs_dirtable_offset; // Relative to NCA start
u64 romfs_dirtable_size;
romfs_dir *romfs_dir_entries;
u64 romfs_filetable_offset; // Relative to NCA start
u64 romfs_filetable_size;
romfs_file *romfs_file_entries;
u64 romfs_filedata_offset; // Relative to NCA start
} PACKED romfs_ctx_t;
typedef struct {
u8 type; // 1 = Dir, 2 = File
u64 offset; // Relative to directory/file table, depending on type
} PACKED romfs_browser_entry;
void generateCnmtXml(cnmt_xml_program_info *xml_program_info, cnmt_xml_content_info *xml_content_info, char *out);
void convertNcaSizeToU64(const u8 size[0x6], u64 *out);
void convertU64ToNcaSize(const u64 size, u8 out[0x6]);
bool processNcaCtrSectionBlock(NcmContentStorage *ncmStorage, const NcmNcaId *ncaId, u64 offset, void *outBuf, size_t bufSize, Aes128CtrContext *ctx, bool encrypt);
bool encryptNcaHeader(nca_header_t *input, u8 *outBuf, u64 outBufSize);
bool decryptNcaHeader(const u8 *ncaBuf, u64 ncaBufSize, nca_header_t *out, title_rights_ctx *rights_info, u8 *decrypted_nca_keys);
bool processProgramNca(NcmContentStorage *ncmStorage, const NcmNcaId *ncaId, nca_header_t *dec_nca_header, cnmt_xml_content_info *xml_content_info, nca_program_mod_data *output);
bool retrieveCnmtNcaData(nspDumpType selectedNspDumpType, u8 *ncaBuf, cnmt_xml_program_info *xml_program_info, cnmt_xml_content_info *xml_content_info, nca_cnmt_mod_data *output, title_rights_ctx *rights_info);
bool patchCnmtNca(u8 *ncaBuf, u64 ncaBufSize, cnmt_xml_program_info *xml_program_info, cnmt_xml_content_info *xml_content_info, nca_cnmt_mod_data *cnmt_mod);
bool readRomFsEntriesFromNca(NcmContentStorage *ncmStorage, const NcmNcaId *ncaId, nca_header_t *dec_nca_header, u8 *decrypted_nca_keys);
bool generateNacpXmlFromNca(NcmContentStorage *ncmStorage, const NcmNcaId *ncaId, nca_header_t *dec_nca_header, u8 *decrypted_nca_keys, char **outBuf);
#endif