mirror of
https://github.com/DarkMatterCore/nxdumptool.git
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227 lines
8.2 KiB
C
227 lines
8.2 KiB
C
/*
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* tik.h
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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 it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* nxdumptool is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* 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 <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#ifndef __TIK_H__
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#define __TIK_H__
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#include "signature.h"
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#define SIGNED_TIK_MAX_SIZE 0x400 /* Max ticket entry size in the ES ticket system savedata file. */
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#define SIGNED_TIK_MIN_SIZE sizeof(TikSigHmac160) /* Assuming no ESV1/ESV2 records are available. */
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typedef enum {
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TikType_None = 0,
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TikType_SigRsa4096 = 1,
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TikType_SigRsa2048 = 2,
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TikType_SigEcc480 = 3,
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TikType_SigHmac160 = 4
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} TikType;
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typedef enum {
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TikTitleKeyType_Common = 0,
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TikTitleKeyType_Personalized = 1
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} TikTitleKeyType;
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typedef enum {
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TikLicenseType_Permanent = 0,
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TikLicenseType_Demo = 1,
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TikLicenseType_Trial = 2,
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TikLicenseType_Rental = 3,
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TikLicenseType_Subscription = 4,
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TikLicenseType_Service = 5
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} TikLicenseType;
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typedef enum {
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TikPropertyMask_PreInstallation = BIT(0),
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TikPropertyMask_SharedTitle = BIT(1),
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TikPropertyMask_AllContents = BIT(2),
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TikPropertyMask_DeviceLinkIndepedent = BIT(3),
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TikPropertyMask_Volatile = BIT(4), ///< Used to determine if the ticket copy inside ticket.bin should be encrypted or not.
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TikPropertyMask_ELicenseRequired = BIT(5) ///< Used to determine if the console should connect to the Internet to perform elicense verification.
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} TikPropertyMask;
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/// Placed after the ticket signature block.
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typedef struct {
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char issuer[0x40];
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u8 titlekey_block[0x100];
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u8 format_version;
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u8 titlekey_type; ///< TikTitleKeyType.
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u16 ticket_version;
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u8 license_type; ///< TikLicenseType.
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u8 key_generation;
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u16 property_mask; ///< TikPropertyMask.
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u8 reserved[0x8];
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u64 ticket_id;
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u64 device_id;
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FsRightsId rights_id;
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u32 account_id;
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u32 sect_total_size;
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u32 sect_hdr_offset;
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u16 sect_hdr_count;
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u16 sect_hdr_entry_size;
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} TikCommonBlock;
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typedef struct {
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SignatureBlockRsa4096 sig_block; ///< sig_type field is stored using little endian byte order.
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TikCommonBlock tik_common_block;
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} TikSigRsa4096;
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typedef struct {
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SignatureBlockRsa2048 sig_block; ///< sig_type field is stored using little endian byte order.
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TikCommonBlock tik_common_block;
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} TikSigRsa2048;
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typedef struct {
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SignatureBlockEcc480 sig_block; ///< sig_type field is stored using little endian byte order.
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TikCommonBlock tik_common_block;
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} TikSigEcc480;
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typedef struct {
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SignatureBlockHmac160 sig_block; ///< sig_type field is stored using little endian byte order.
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TikCommonBlock tik_common_block;
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} TikSigHmac160;
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/// ESV1/ESV2 section records are placed right after the ticket data. These aren't available in TikTitleKeyType_Common tickets.
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/// These are only used if the sect_* fields from the common block are non-zero (other than 'sect_hdr_offset').
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/// Each ESV2 section record is followed by a 'record_count' number of ESV1 records, each one of 'record_size' size.
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typedef enum {
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TikSectionType_Permanent = 1,
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TikSectionType_Subscription = 2,
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TikSectionType_Content = 3,
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TikSectionType_ContentConsumption = 4,
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TikSectionType_AccessTitle = 5,
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TikSectionType_LimitedResource = 6
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} TikSectionType;
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typedef struct {
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u32 sect_offset;
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u32 record_size;
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u32 section_size;
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u16 record_count;
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u16 section_type; ///< TikSectionType.
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} TikESV2SectionRecord;
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/// Used with TikSectionType_Permanent.
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typedef struct {
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u8 ref_id[0x10];
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u32 ref_id_attr;
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} TikESV1PermanentRecord;
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/// Used with TikSectionType_Subscription.
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typedef struct {
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u32 limit;
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u8 ref_id[0x10];
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u32 ref_id_attr;
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} TikESV1SubscriptionRecord;
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/// Used with TikSectionType_Content.
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typedef struct {
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u32 offset;
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u8 access_mask[0x80];
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} TikESV1ContentRecord;
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/// Used with TikSectionType_ContentConsumption.
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typedef struct {
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u16 index;
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u16 code;
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u32 limit;
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} TikESV1ContentConsumptionRecord;
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/// Used with TikSectionType_AccessTitle.
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typedef struct {
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u64 access_title_id;
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u64 access_title_mask;
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} TikESV1AccessTitleRecord;
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/// Used with TikSectionType_LimitedResource.
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typedef struct {
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u32 limit;
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u8 ref_id[0x10];
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u32 ref_id_attr;
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} TikESV1LimitedResourceRecord;
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/// Used to store ticket type, size and raw data, as well as titlekey data.
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typedef struct {
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u8 type; ///< TikType.
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u64 size; ///< Raw ticket size.
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u8 data[SIGNED_TIK_MAX_SIZE]; ///< Raw ticket data.
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u8 enc_titlekey[0x10]; ///< Titlekey with titlekek crypto (RSA-OAEP unwrapped if dealing with a TikTitleKeyType_Personalized ticket).
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u8 dec_titlekey[0x10]; ///< Titlekey without titlekek crypto. Ready to use for NCA FS section decryption.
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char rights_id_str[0x21]; ///< Character string representation of the rights ID from the ticket.
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} Ticket;
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/// Retrieves a ticket from either the ES ticket system savedata file (eMMC BIS System partition) or the secure hash FS partition from an inserted gamecard, using a Rights ID value.
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/// Titlekey is also RSA-OAEP unwrapped (if needed) and titlekek decrypted right away.
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bool tikRetrieveTicketByRightsId(Ticket *dst, const FsRightsId *id, bool use_gamecard);
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/// Converts a TikTitleKeyType_Personalized ticket into a TikTitleKeyType_Common ticket and generates a raw certificate chain for the new signature issuer.
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/// Bear in mind the 'size' member from the Ticket parameter will be updated by this function to remove any possible references to ESV1/ESV2 records.
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/// Raw certificate chain data will be saved to the provided pointers. certGenerateRawCertificateChainBySignatureIssuer() is used internally, so the output buffer must be freed by the user.
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bool tikConvertPersonalizedTicketToCommonTicket(Ticket *tik, u8 **out_raw_cert_chain, u64 *out_raw_cert_chain_size);
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/// Helper inline functions.
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NX_INLINE TikCommonBlock *tikGetCommonBlock(void *buf)
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{
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return (TikCommonBlock*)signatureGetPayload(buf, false);
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}
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NX_INLINE u64 tikGetTicketSectionRecordsBlockSize(TikCommonBlock *tik_common_block)
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{
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if (!tik_common_block) return 0;
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u64 offset = sizeof(TikCommonBlock), out_size = 0;
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for(u32 i = 0; i < tik_common_block->sect_hdr_count; i++)
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{
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TikESV2SectionRecord *rec = (TikESV2SectionRecord*)((u8*)tik_common_block + offset);
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offset += (sizeof(TikESV2SectionRecord) + ((u64)rec->record_count * (u64)rec->record_size));
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out_size += offset;
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}
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return out_size;
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}
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NX_INLINE bool tikIsValidTicket(void *buf)
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{
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u64 ticket_size = (signatureGetBlockSize(signatureGetSigType(buf, false)) + sizeof(TikCommonBlock));
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return (ticket_size > sizeof(TikCommonBlock) && (ticket_size + tikGetTicketSectionRecordsBlockSize(tikGetCommonBlock(buf))) <= SIGNED_TIK_MAX_SIZE);
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}
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NX_INLINE u64 tikGetSignedTicketSize(void *buf)
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{
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return (tikIsValidTicket(buf) ? (signatureGetBlockSize(signatureGetSigType(buf, false)) + sizeof(TikCommonBlock) + tikGetTicketSectionRecordsBlockSize(tikGetCommonBlock(buf))) : 0);
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}
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NX_INLINE u64 tikGetSignedTicketHashAreaSize(void *buf)
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{
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return (tikIsValidTicket(buf) ? (sizeof(TikCommonBlock) + tikGetTicketSectionRecordsBlockSize(tikGetCommonBlock(buf))) : 0);
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}
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NX_INLINE bool tikIsPersonalizedTicket(Ticket *tik)
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{
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TikCommonBlock *tik_common_block = tikGetCommonBlock(tik->data);
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return (tik_common_block != NULL && tik_common_block->titlekey_type == TikTitleKeyType_Personalized);
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}
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#endif /* __TIK_H__ */
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