Services API: Difference between revisions
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Services are system processes running in the background which wait for incoming requests. When a process wants to communicate with a service, it first needs to get a handle to the named service, and then it can communicate with the service via inter-process communication (each service has a name up to 8 characters). | |||
Handles for services are retrieved from the service manager port, "sm:". Services are an abstraction of ports, they operate the same way except regular ports can have their handles retrieved directly from a SVC. | Handles for services are retrieved from the service manager port, "sm:". Services are an abstraction of ports, they operate the same way except regular ports can have their handles retrieved directly from a SVC. | ||
= sm: = | |||
{| class="wikitable" border="1" | |||
|- | |||
! Cmd || Name | |||
|- | |||
| 0 || [[#Initialize]] | |||
|- | |||
| 1 || [[#GetService]] | |||
|- | |||
| 2 || [[#RegisterService]] | |||
|- | |||
| 3 || | |||
|} | |||
== Initialize == | |||
{| class="wikitable" border="1" | |||
|- | |||
! Word || Value | |||
|- | |||
| 0 || 0x00000004 | |||
|- | |||
| 1 || 0x8000000A | |||
|- | |||
| 2 || 0x00000001 | |||
|- style="border-top: double" | |||
| 0-1 || Pid | |||
|- style="border-top: double" | |||
| 0 || "SCFI" | |||
|- | |||
| 1 || 0x00000000 | |||
|- | |||
| 2 || Always 0. | |||
|} | |||
== GetService == | |||
{| class="wikitable" border="1" | |||
|- | |||
! Word || Value | |||
|- | |||
| 0 || 0x00000004 | |||
|- | |||
| 1 || 0x0000000A | |||
|- style="border-top: double" | |||
| 0 || "SCFI" | |||
|- | |||
| 1 || 0x00000001 | |||
|- | |||
| 2 || Service name, zero padded and casted to u64. | |||
|} | |||
== RegisterService == | |||
{| class="wikitable" border="1" | |||
|- | |||
! Word || Value | |||
|- | |||
| 0 || 0x00000004 | |||
|- | |||
| 1 || 0x0000000C | |||
|- style="border-top: double" | |||
| 0 || "SCFI" | |||
|- | |||
| 1 || 0x00000002 | |||
|- | |||
| 2 || Service name, zero padded and casted to u64. | |||
|- | |||
| 3 || Max sessions? 32-bit integer. | |||
|- | |||
| 4 || Unknown bool | |||
|} | |||
= List = | |||
{| class="wikitable" border="1" | {| class="wikitable" border="1" | ||
|- | |- | ||
Revision as of 05:51, 16 April 2017
Services are system processes running in the background which wait for incoming requests. When a process wants to communicate with a service, it first needs to get a handle to the named service, and then it can communicate with the service via inter-process communication (each service has a name up to 8 characters).
Handles for services are retrieved from the service manager port, "sm:". Services are an abstraction of ports, they operate the same way except regular ports can have their handles retrieved directly from a SVC.
sm:
| Cmd | Name |
|---|---|
| 0 | #Initialize |
| 1 | #GetService |
| 2 | #RegisterService |
| 3 |
Initialize
| Word | Value |
|---|---|
| 0 | 0x00000004 |
| 1 | 0x8000000A |
| 2 | 0x00000001 |
| 0-1 | Pid |
| 0 | "SCFI" |
| 1 | 0x00000000 |
| 2 | Always 0. |
GetService
| Word | Value |
|---|---|
| 0 | 0x00000004 |
| 1 | 0x0000000A |
| 0 | "SCFI" |
| 1 | 0x00000001 |
| 2 | Service name, zero padded and casted to u64. |
RegisterService
| Word | Value |
|---|---|
| 0 | 0x00000004 |
| 1 | 0x0000000C |
| 0 | "SCFI" |
| 1 | 0x00000002 |
| 2 | Service name, zero padded and casted to u64. |
| 3 | Max sessions? 32-bit integer. |
| 4 | Unknown bool |
List
| Service names | Description | Notes |
|---|---|---|
| acc:u1, acc:su | Account services | u1: for user 1? |
| appletAE | Applet Accessor services | |
| aoc:u | AddOn Content services | |
| audren:u | Audio Renderer services | |
| audout:u | Audio Out services | |
| bsd:u, bsd:s | Sockets services | |
| caps:a, caps:c, caps:ss | Capture services | a: Album, ss: Screenshot |
| fatal:u | Fatal Error services | |
| fsp-srv | Filesystem services | |
| hid, hid:dbg, hid:sys | HID services | |
| ldn:m | Local Network Monitor services | |
| ldr:ro | RO services | |
| ldr:shel | Loader services | |
| lm | Log services | |
| lr | ? | |
| erpt:c | ERPT(?) services | |
| mii:u, mii:e | Mii services | |
| mm:u | NvMM services | |
| nifm:u, nifm:a, nifm:s | Network Interface services | u: User, a: Applet, s: System |
| nim:shp | NIM services | shp: eShop |
| ns:am, ns:su, ns:dev | NS Services | am: Application Manager, su: System Update |
| nsd:u, nsd:a | NSD services | |
| nvmemp | NVIDIA Memory Profiling services | |
| nvdrv:a | NV services | |
| ovln:rcv, ovln:snd | Overlay Notification services | |
| pdm:ntfy, pdm:qry | Play Log services | |
| pl:u | Shared Font services | |
| pm:bm, pm:shell | Process Manager services | |
| prepo:u, prepo:s, prepo:m, prepo:a | Prepo(?) services | |
| set, set:sys | Settings services | sys: System settings |
| sfdnsres | DNS resolver services | |
| ssl | SSL services | |
| time:u, time:a, time:s | Time services | |
| vi:m, vi:s, vi:u | VI (Camera?) services |