FRD Savegame

2024-03-29T23:11:07Z

TraceEntertains: Remove unknown padding field in mydata section (it overlaps with the previous field and is inaccurate)

This page describes the contents of the [[Friend_Services|friend]] sysmodule savegame. Except for the config file, all of the data is stored inside a folder that represents the local account ID of the account. For example: /1/account stores the data of the main account.

== config ==

{| class="wikitable"
|-
! Offset
! Size
! Description
|-
| 0x00
| 4
| File magic "FPCF" (Friends Preference Config)
|-
| 0x04
| 4
| File magic number (0x20101021)
|-
| 0x08
| 8
| Padding
|-
| 0x10
| 4
| Current Local Account ID
|}

== account ==

{| class="wikitable"
|-
! Offset
! Size
! Description
|-
| 0x00
| 4
| File magic "FPAC" (Friends Preference Account Config)
|-
| 0x04
| 4
| File magic number (0x20101021)
|-
| 0x08
| 8
| Padding
|-
| 0x10
| 4
| Local Account ID
|-
| 0x14
| 4
| PrincipalID
|-
| 0x18
| 8
| LocalFriendCode
|-
| 0x20
| (16 + 1) * 2
| NEX Password
|-
| 0x42
| (8 + 1) * 2
| PrincipalID HMAC (Used for logging into NASC server)
|-
| 0x54
| 1
| NASC Environment (0: Prod, 1: Test, 2: Dev)
|-
| 0x55
| 1
| [[Friend_Services#Server_Types|Server type]] letter value
|-
| 0x56
| 1
| [[Friend_Services#Server_Types|Server type]] number value
|-
| 0x57
| 1
| Padding
|}

== mydata ==

{| class="wikitable"
|-
! Offset
! Size
! Description
|-
| 0x00
| 4
| File magic "FPMD" (Friends Preference My Data/Device)
|-
| 0x04
| 4
| File magic number (0x20101021)
|-
| 0x08
| 8
| Padding
|-
| 0x10
| 4
| My NC Principal ID
|-
| 0x14
| 4
| Unknown
|-
| 0x18
| 4
| [https://github.com/kinnay/NintendoClients/wiki/Friends-Protocol-(3DS)#nintendopresence-structure Changed bit flags]
|-
| 0x1C
| 1
| Is public mode
|-
| 0x1D
| 1
| Is show game mode
|-
| 0x1E
| 1
| Is show played game
|-
| 0x1F
| 1
| Padding
|-
| 0x20
| 0x10
| GameKey of my favorite game:
u64 title_id
u32 title_version
u32 unknown
|-
| 0x30
| 16 * 2
| UTF16 string of personal message
|-
| 0x50
| 8
| Unknown
|-
| 0x58
| 8
|
u8 region
u8 country
u8 area
u8 language
u8 platform = 2
u8 padding[3]
|-
| 0x60
| 8
| LocalFriendCodeSeed u64
|-
| 0x68
| (12 + 1) * 2
| UTF16 string of MAC address of the console (only the digits)
|-
| 0x82
| (15 + 1) * 2
| UTF16 string of console serial number without the checksum digit
|-
| 0xA2
| (10 + 1) * 2
| UTF16 string of Display name
|-
| 0xBB
| 0x60
| Unaligned [[Mii#Mii_format|Mii data]]
|-
| 0x11B
| 5
| Padding (0x120)
|}

== friendlist ==

=== Header ===

{| class="wikitable"
|-
! Offset
! Size
! Description
|-
| 0x00
| 4
| File magic "FPFL" (Friends Preference Friend List)
|-
| 0x04
| 4
| File magic number (0x20101021)
|-
| 0x08
| 8
| Padding
|-
| 0x10
| ? * 0x100
| [[FRD_Savegame#Friend_entry|Friend entries]]...
|}

=== Friend entry ===

{| class="wikitable"
|-
! Offset
! Size
! Description
|-
| 0x00
| 0x10
| FriendKey:
u32 principal_id
u32 padding
u64 friend_code
|-
| 0x10
| 0x4
| Unknown
|-
| 0x14
| 1
| Friend relationship
|-
| 0x15
| 8
|
u8 region
u8 country
u8 area
u8 language
u8 platform = 2
u8 padding[3]
|-
| 0x1D
| 3
| Padding
|-

| 0x20
| 0x10
| GameKey of friend favorite game:
u64 title_id
u32 title_version
u32 unknown
|-
| 0x30
| 16 * 2
| UTF16 string of personal message
|-
| 0x50
| 0x8
| Unknown
|-
| 0x58
| 8
| Message update [https://github.com/kinnay/NintendoClients/wiki/NEX-Common-Types#datetime timestamp]
|-
| 0x60
| 8
| Mii update [https://github.com/kinnay/NintendoClients/wiki/NEX-Common-Types#datetime timestamp]
|-
| 0x68
| 8
| Last online [https://github.com/kinnay/NintendoClients/wiki/NEX-Common-Types#datetime timestamp]
|-
| 0x70
| 0x60
| [[Mii#Mii_format|Mii data]]
|-
| 0xD0
| (10 + 1) * 2
| UTF16 string of display name
|-
| 0xE8
| 8
| Friendship? [https://github.com/kinnay/NintendoClients/wiki/NEX-Common-Types#datetime timestamp]
|-
| 0xF0
| 8
| Same as 0x58?
|-
| 0xF8
| 8
| Same as 0x60?
|}

3dbrew - User contributions [en]

FRD Savegame