Migration services: Difference between revisions
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Besides other functionality, this async task may call the same network-request func as [[#Cmd500_2|Cmd500]]. | Besides other functionality, this async task may call the same network-request func as [[#Cmd500_2|Cmd500]]. | ||
= AdvertiseData = | |||
These sections document the initial [[LDN_services|AdvertiseData]] used by migration. | |||
The global constant used with hashing below is the same regardless of the AdvertiseData. | |||
Later the server also sets the AdvertiseData to {0x10-byte data}. | |||
== user == | |||
Used by nn::migration::user::*. | |||
{| class="wikitable" border="1" | |||
|- | |||
! Offset || Size || Description | |||
|- | |||
| 0x0 || 0x8 || AccountId | |||
|- | |||
| 0x8 || 0x58 || Unused | |||
|- | |||
| 0x60 || 0x100 || | |||
|- | |||
| 0x160 || 0x20 || SHA256 hash | |||
|} | |||
The hash is calculated by using SHA256-update with each field separately, followed by global constant: | |||
* AccountId | |||
* +0x60 size 0x100-bytes | |||
* 0x100-byte global constant | |||
== savedata == | |||
Used by nn::migration::savedata::*. | |||
{| class="wikitable" border="1" | |||
|- | |||
! Offset || Size || Description | |||
|- | |||
| 0x0 || 0x10 || | |||
|- | |||
| 0x10 || 0x8 || AccountId | |||
|- | |||
| 0x18 || 0x8 || ApplicationId | |||
|- | |||
| 0x20 || 0x4 || [[Settings_services#GetProductModel|ProductModel]] | |||
|- | |||
| 0x24 || 0x4 || Padding | |||
|- | |||
| 0x28 || 0x100 || | |||
|- | |||
| 0x128 || 0x20 || SHA256 hash | |||
|} | |||
The hash is calculated by using SHA256-update with each field separately, followed by global constant: | |||
* +0x0 size 0x10 | |||
* AccountId | |||
* ApplicationId | |||
* ProductModel | |||
* +0x28 size 0x100 | |||
* 0x100-bytes global constant | |||
== device == | |||
Used by nn::migration::device::*. | |||
{| class="wikitable" border="1" | |||
|- | |||
! Offset || Size || Description | |||
|- | |||
| 0x0 || 0x10 || | |||
|- | |||
| 0x10 || 0x40 (0x8*0x8) || Array of u64s with the below count. | |||
|- | |||
| 0x50 || 0x4 || Count for the above array. | |||
|- | |||
| 0x54 || 0xC || Unused | |||
|- | |||
| 0x60 || 0x100 || | |||
|- | |||
| 0x160 || 0x20 || SHA256 hash | |||
|} | |||
The hash is calculated by using SHA256-update with each field separately, followed by global constant: | |||
* +0x0 size 0x10-bytes | |||
* +0x10 size 0x40-bytes | |||
* +0x50 size 0x4-bytes | |||
* +0x60 size 0x100-bytes | |||
* 0x100-bytes global constant | |||
= Notes = | = Notes = | ||