Difference between revisions of "NPDM"
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| Line 70: | Line 70: | ||
|- | |- | ||
| 0x4 | | 0x4 | ||
| − | | | + | | 0xEC |
| ? | | ? | ||
| + | |- | ||
| + | | 0xF0 | ||
| + | | <Varies> | ||
| + | | Service Access Control | ||
|} | |} | ||
| Line 90: | Line 94: | ||
| 0xB4 | | 0xB4 | ||
| ? | | ? | ||
| + | |- | ||
| + | | 0x60 | ||
| + | | <Varies> | ||
| + | | Service Access Control | ||
|} | |} | ||
Switch version of 3DS ACI(Access Control Info)? | Switch version of 3DS ACI(Access Control Info)? | ||
| + | |||
| + | =Service Access Control= | ||
| + | This is a list of [[Services_API|service]]-name strings which the title has access to, with the following structure: +0 control_byte, +1 = {service-name without nul-terminator}. Bitmask 0xF in control_byte is the length of the service-name. Bitmask 0x80 is set for services which the title can register, while it's clear for services used with [[Services_API#GetService]]. | ||
Revision as of 18:35, 25 June 2017
This is the Switch equivalent of 3DS exheader. This is the file with extension ".npdm" in {Switch ExeFS}. The size of this file varies.
| Offset | Size | Description |
|---|---|---|
| 0x0 | 0x80 | META |
| 0x80 | 0x200 | RSA-2048 signature, followed a RSA-2048 modulus for NCA header (like 3DS) |
| 0x280 | <Varies> | ACID |
| <See META> | <See META> | ACI0 |
META
| Offset | Size | Description |
|---|---|---|
| 0x0 | 0x4 | Magicnum "META". |
| 0x20 | ? | Name string |
| 0x70 | 0x4 | Absolute offset for ACI0. |
| 0x74 | 0x4 | Size of ACI0. |
| 0x78 | 0x4 | Absolute offset of the RSA signature. |
| 0x7C | 0x4 | Size used with the above offset. Offset+size is normally ACI0_start-8. |
Switch version of 3DS "System Control Info"?
ACID
| Offset | Size | Description |
|---|---|---|
| 0x0 | 0x4 | Magicnum "ACID". |
| 0x4 | 0xEC | ? |
| 0xF0 | <Varies> | Service Access Control |
Switch version of AccessDesc?
ACI0
| Offset | Size | Description |
|---|---|---|
| 0x0 | 0x4 | Magicnum "ACI0". |
| 0x4 | 0xB4 | ? |
| 0x60 | <Varies> | Service Access Control |
Switch version of 3DS ACI(Access Control Info)?
Service Access Control
This is a list of service-name strings which the title has access to, with the following structure: +0 control_byte, +1 = {service-name without nul-terminator}. Bitmask 0xF in control_byte is the length of the service-name. Bitmask 0x80 is set for services which the title can register, while it's clear for services used with Services_API#GetService.