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https://github.com/spacemeowx2/switch-lan-play
Enjoy games with your friends as if you were on a LAN.
https://github.com/spacemeowx2/switch-lan-play
lan-play libpcap nintendoswitch switch
Last synced: 29 days ago
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Enjoy games with your friends as if you were on a LAN.
- Host: GitHub
- URL: https://github.com/spacemeowx2/switch-lan-play
- Owner: spacemeowx2
- License: gpl-3.0
- Created: 2017-12-05T17:52:15.000Z (almost 7 years ago)
- Default Branch: master
- Last Pushed: 2024-01-10T06:26:31.000Z (10 months ago)
- Last Synced: 2024-10-02T01:22:08.092Z (about 1 month ago)
- Topics: lan-play, libpcap, nintendoswitch, switch
- Language: C
- Homepage:
- Size: 3.26 MB
- Stars: 1,813
- Watchers: 46
- Forks: 190
- Open Issues: 62
-
Metadata Files:
- Readme: README.md
- License: LICENSE.txt
Awesome Lists containing this project
README
# switch-lan-play
[](https://github.com/spacemeowx2/switch-lan-play/actions?query=workflow%3ABuild)
[](https://discord.gg/zEMCu5n)
English | [中文](README_zh.md)
Enjoy games with your friends as if you were on a LAN.
```
Internet
|
[SOCKS5 Proxy] (optional)
|
ARP,IPv4 | LAN Packets
Switch <--------> PC(lan-play) <-------------> Server
UDP
```
# Usage
To play with your friends, both you and your friends need to run the lan-play client connecting to the **same** Server on your PCs, and set static IP on your Switch.
Your PC and Switch **must** be connected to the same router.
Visit [https://www.lan-play.com/](http://lan-play.com/install-switch) for instructions on how to set this up. See below for build instructions.
## SOCKS5 Proxy
lan-play --socks5-server-addr example.com:1080
Data sent to the relay server does not pass through the proxy.
# Build
## Debug or Release
`cmake -DCMAKE_BUILD_TYPE=Debug ..`
`cmake -DCMAKE_BUILD_TYPE=Release ..`
## Ubuntu / Debian
This project depends on libpcap, you can install libpcap0.8-dev on Ubuntu or Debian:
`sudo apt install libpcap0.8-dev git gcc g++ cmake`
Prepare cmake and gcc, then run the following:
```sh
mkdir build
cd build
cmake ..
make
```
## Windows
Use [MSYS2](http://www.msys2.org/) to compile.
```sh
pacman -Sy
pacman -S make \
mingw-w64-x86_64-cmake \
mingw-w64-x86_64-gcc
```
To compile a 32-bit program:
```sh
pacman -S mingw-w64-i686-cmake \
mingw-w64-i686-gcc
```
Open `MSYS2 MinGW 64-bit` or `MSYS2 MinGW 32-bit`.
```sh
mkdir build
cd build
cmake -G "MSYS Makefiles" ..
make
```
## Mac OS
```sh
brew install cmake
```
```sh
mkdir build
cd build
cmake ..
make
```
# Server
## Docker
`docker run -d -p 11451:11451/udp -p 11451:11451/tcp spacemeowx2/switch-lan-play`
## Node
```sh
git clone https://github.com/spacemeowx2/switch-lan-play
cd switch-lan-play/server
npm install
npm run build # build ts to js. run it again when code changes.
npm start
```
Use `--port` to pass the port parameter, or it will use `11451/udp` as the default.
Use `--simpleAuth` to pass authentication via username and password, or there will be no authentication.
Use `--httpAuth` to pass authentication via HTTP URL, or there will be no authentication.
Use `--jsonAuth` to pass authentication via JSON file, or there will be no authentication.
Example:
```sh
npm run build
npm start -- --port 10086 --simpleAuth username:password
```
Meanwhile, the monitor service will start on port `11451/tcp` by default. You can get the online client count via an HTTP request:
Request: `GET http://{YOUR_SERVER_IP}:11451/info`
Response: `{ "online": 42 }`
# Protocol
The protocol is quite simple at the moment, but additional fields may be added to calculate network quality (packet loss, ping), such as timestamp, seq_id, etc.
```c
struct packet {
uint8_t type;
uint8_t payload[packet_len - 1];
};
```
```c
enum type {
KEEPALIVE = 0,
IPV4 = 1,
PING = 2,
IPV4_FRAG = 3
};
```
The server can read IP addresses from the payload and save the source IP -> LAN IP to a cache table. If the target IP address shown in the payload doesn't match the cache, the packet is broadcast to the entire room.