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Reuseport Checker

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This commit is contained in:
Alexey
2026-02-23 00:55:47 +03:00
parent d050c4794a
commit 07ca94ce57
5 changed files with 165 additions and 2 deletions
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31
src/main.rs
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@@ -38,7 +38,7 @@ use crate::stream::BufferPool;
use crate::transport::middle_proxy::{
MePool, fetch_proxy_config, run_me_ping, MePingFamily, MePingSample, format_sample_line,
};
use crate::transport::{ListenOptions, UpstreamManager, create_listener};
use crate::transport::{ListenOptions, UpstreamManager, create_listener, find_listener_processes};
use crate::tls_front::TlsFrontCache;
fn parse_cli() -> (String, bool, Option<String>) {
@@ -715,6 +715,7 @@ match crate::transport::middle_proxy::fetch_proxy_secret(proxy_secret_path).awai
continue;
}
let options = ListenOptions {
reuse_port: listener_conf.reuse_allow,
ipv6_only: listener_conf.ip.is_ipv6(),
..Default::default()
};
@@ -753,7 +754,33 @@ match crate::transport::middle_proxy::fetch_proxy_secret(proxy_secret_path).awai
listeners.push((listener, listener_proxy_protocol));
}
Err(e) => {
error!("Failed to bind to {}: {}", addr, e);
if e.kind() == std::io::ErrorKind::AddrInUse {
let owners = find_listener_processes(addr);
if owners.is_empty() {
error!(
%addr,
"Failed to bind: address already in use (owner process unresolved)"
);
} else {
for owner in owners {
error!(
%addr,
pid = owner.pid,
process = %owner.process,
"Failed to bind: address already in use"
);
}
}
if !listener_conf.reuse_allow {
error!(
%addr,
"reuse_allow=false; set [[server.listeners]].reuse_allow=true to allow multi-instance listening"
);
}
} else {
error!("Failed to bind to {}: {}", addr, e);
}
}
}
}