[Feature Request] Add WireGuard inbound

[bsdayo]

Currently, sing-box only supports WireGuard as a outbound. Works great when it is used only for access to the server, but the server cannot access back, while the official WireGuard client can achieve this.

For example, Server A which is running sing-box (with WireGuard outbound), connect to Server B, which is running WireGuard server, A can nc to B, but B cannot nc to A.

It will be handy if sing-box also supports WireGuard as a inbound, as this will only require sing-box (1 tool) to setup the network, without the need of a dedicated WireGuard client.

[devopg]

I support the proposal.

[finch71]

Just tried the new endpoint and it's super cool!!

The only problem is that wireguard does not support QUIC/bbr and therefore performs bad in bad internet environment.

It would be nice to extend TUIC/Hysteria1 protocol to support bi-directional communication. (since they are anyways abandoned)

Mirror: apernet/hysteria#1256