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feat: add Windows UDP broadcast relay (#2222)

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This may helps games to find rooms in virtual network.

- add opt-in Windows UDP broadcast relay config flag and CLI/env plumbing
- capture local UDP broadcasts with Windows raw sockets, normalize packets, and inject them via PeerManager
This commit is contained in:
KKRainbow
2026-05-09 09:56:31 +08:00
committed by GitHub
parent 55f15bb6f0
commit 8e1d079142
19 changed files with 1271 additions and 13 deletions
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easytier/src/launcher.rs
+6
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@@ -820,6 +820,10 @@ impl NetworkConfig {
flags.disable_relay_data = disable_relay_data;
}
if let Some(enable_udp_broadcast_relay) = self.enable_udp_broadcast_relay {
flags.enable_udp_broadcast_relay = enable_udp_broadcast_relay;
}
if let Some(disable_sym_hole_punching) = self.disable_sym_hole_punching {
flags.disable_sym_hole_punching = disable_sym_hole_punching;
}
@@ -995,6 +999,7 @@ impl NetworkConfig {
result.disable_udp_hole_punching = Some(flags.disable_udp_hole_punching);
result.disable_upnp = Some(flags.disable_upnp);
result.disable_relay_data = Some(flags.disable_relay_data);
result.enable_udp_broadcast_relay = Some(flags.enable_udp_broadcast_relay);
result.disable_sym_hole_punching = Some(flags.disable_sym_hole_punching);
result.enable_magic_dns = Some(flags.accept_dns);
result.mtu = Some(flags.mtu as i32);
@@ -1263,6 +1268,7 @@ mod tests {
flags.disable_tcp_hole_punching = rng.gen_bool(0.2);
flags.disable_udp_hole_punching = rng.gen_bool(0.2);
flags.disable_upnp = rng.gen_bool(0.2);
flags.enable_udp_broadcast_relay = rng.gen_bool(0.2);
flags.accept_dns = rng.gen_bool(0.6);
flags.mtu = rng.gen_range(1200..1500);
flags.private_mode = rng.gen_bool(0.3);