#pragma once #ifndef __NCA_H__ #define __NCA_H__ #include #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_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 BKTR_MAGIC (u32)0x424B5452 // "BKTR" #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_PROGRAM_XML_FILENAME_LENGTH 0x31 // NCA ID + ".programinfo.xml" + NULL terminator #define NSP_NACP_XML_FILENAME_LENGTH 0x2A // NCA ID + ".nacp.xml" + NULL terminator #define NSP_LEGAL_XML_FILENAME_LENGTH 0x2F // NCA ID + ".legalinfo.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 #define ETICKET_ENTRY_SIZE 0x400 #define ETICKET_TITLEKEY_OFFSET 0x180 #define ETICKET_RIGHTSID_OFFSET 0x2A0 #define ETICKET_UNKNOWN_FIELD_SIZE 0x140 #define ETICKET_DATA_OFFSET 0x140 #define ETICKET_CA_CERT_SIZE 0x400 #define ETICKET_XS_CERT_SIZE 0x300 #define ETICKET_TIK_FILE_SIZE (ETICKET_ENTRY_SIZE - 0x140) #define ETICKET_CERT_FILE_SIZE (ETICKET_CA_CERT_SIZE + ETICKET_XS_CERT_SIZE) #define ETICKET_TITLEKEY_COMMON 0 #define ETICKET_TITLEKEY_PERSONALIZED 1 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_file_entry; 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; typedef struct { u64 offset; u64 size; u32 magic; /* "BKTR" */ u32 _0x14; /* Version? */ u32 num_entries; u32 _0x1C; /* Reserved? */ } PACKED bktr_header_t; typedef struct { ivfc_hdr_t ivfc_header; u8 _0xE0[0x18]; bktr_header_t relocation_header; bktr_header_t subsection_header; } PACKED bktr_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; bktr_superblock_t bktr_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 fixed_key_generation; u8 _0x222[0xE]; /* 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 extended_header_size; u16 content_cnt; u16 content_meta_cnt; u8 attr; u8 unk2[0x03]; u32 required_dl_sysver; u8 unk3[0x04]; } PACKED cnmt_header; typedef struct { u64 patch_tid; /* Patch TID / Application TID */ u32 min_sysver; /* Minimum system/application version */ u32 min_appver; /* Minimum application version (only for base applications) */ } PACKED cnmt_extended_header; typedef struct { u8 hash[0x20]; u8 nca_id[0x10]; u8 size[6]; u8 type; u8 id_offset; } PACKED cnmt_content_record; typedef struct { u8 type; u64 title_id; u32 version; u32 required_dl_sysver; u32 nca_cnt; u8 digest[SHA256_HASH_SIZE]; char digest_str[(SHA256_HASH_SIZE * 2) + 1]; u8 min_keyblob; u32 min_sysver; u64 patch_tid; u32 min_appver; } cnmt_xml_program_info; typedef struct { u8 type; u8 nca_id[SHA256_HASH_SIZE / 2]; char nca_id_str[SHA256_HASH_SIZE + 1]; u64 size; u8 hash[SHA256_HASH_SIZE]; char hash_str[(SHA256_HASH_SIZE * 2) + 1]; u8 keyblob; u8 id_offset; u64 cnt_record_offset; // Relative to the start of the content records section in the CNMT u8 decrypted_nca_keys[NCA_KEY_AREA_SIZE]; u8 encrypted_header_mod[NCA_FULL_HEADER_LENGTH]; } cnmt_xml_content_info; typedef struct { u32 nca_index; 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]; } nca_program_mod_data; typedef struct { u32 nca_index; u64 xml_size; char *xml_data; u8 nacp_icon_cnt; // Only used with Control NCAs nacp_icons_ctx *nacp_icons; // Only used with Control NCAs } xml_record_info; typedef struct { u64 section_offset; // Relative to NCA start u64 section_size; u64 hash_table_offset; // Relative to NCA start u64 hash_block_size; u32 hash_block_cnt; u64 pfs0_offset; // Relative to NCA start u64 pfs0_size; u64 title_cnmt_offset; // Relative to NCA start u64 title_cnmt_size; } nca_cnmt_mod_data; typedef struct { u32 sig_type; u8 signature[0x100]; u8 padding[0x3C]; char sig_issuer[0x40]; u8 titlekey_block[0x100]; u8 unk1; u8 titlekey_type; u8 unk2[0x03]; u8 master_key_rev; u8 unk3[0x0A]; u64 ticket_id; u64 device_id; u8 rights_id[0x10]; u32 account_id; u8 unk4[0x0C]; } PACKED rsa2048_sha256_ticket; typedef struct { bool has_rights_id; u8 rights_id[0x10]; char rights_id_str[33]; char tik_filename[37]; char cert_filename[38]; u8 enc_titlekey[0x10]; u8 dec_titlekey[0x10]; u8 cert_data[ETICKET_CERT_FILE_SIZE]; rsa2048_sha256_ticket tik_data; bool retrieved_tik; bool missing_tik; } title_rights_ctx; // Used in HFS0 / ExeFS / RomFS browsers typedef struct { u64 size; char sizeStr[32]; } browser_entry_size_info; typedef struct { u8 type; // 1 = Dir, 2 = File u64 offset; // Relative to directory/file table, depending on type browser_entry_size_info sizeInfo; // Only used if type == 2 } romfs_browser_entry; 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 retrieveTitleKeyData); bool retrieveTitleKeyFromGameCardTicket(title_rights_ctx *rights_info, u8 *decrypted_nca_keys); bool processProgramNca(NcmContentStorage *ncmStorage, const NcmContentId *ncaId, nca_header_t *dec_nca_header, cnmt_xml_content_info *xml_content_info, nca_program_mod_data **output, u32 *cur_mod_cnt, u32 idx); bool retrieveCnmtNcaData(NcmStorageId curStorageId, u8 *ncaBuf, cnmt_xml_program_info *xml_program_info, cnmt_xml_content_info *xml_content_info, u32 cnmtNcaIndex, 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 generateProgramInfoXml(NcmContentStorage *ncmStorage, const NcmContentId *ncaId, nca_header_t *dec_nca_header, u8 *decrypted_nca_keys, bool useCustomAcidRsaPubKey, char **outBuf, u64 *outBufSize); #endif