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connclass: cidr/parent/port/limit/globalmax + hashed/trusted-cert passwords, per-class recvq/sendq + fakelag, and rfc1413 ident

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This commit is contained in:
Jean Chevronnet 2026-08-10 18:46:42 +00:00
parent f5f888dbaa
commit f371ed0a18
14 changed files with 842 additions and 126 deletions
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18
src/modules/flood.rs
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@ -1,7 +1,10 @@
//! Per-user message-rate limit (`flood_messages` within `flood_seconds`); opers
//! exempt. Recent message times live in the user's typed
//! exempt. A connection class can override the limit (`penaltythreshold` /
//! `commandrate`) and, with `fakelag=no`, have flooders disconnected instead of
//! rate-limited. Recent message times live in the user's typed
//! [`crate::extensible::Extensible`] slot, so the state is freed when the user quits.
use crate::modules::connclass;
use crate::module::{ModResult, Module};
use crate::server::{now, Server};
use crate::Uid;
@ -32,8 +35,11 @@ impl Module for Flood {
_text: &str,
) -> ModResult {
let now = now();
let max = srv.conf_num("flood_messages", FLOOD_MAX);
let window = srv.conf_num("flood_seconds", FLOOD_WINDOW);
// a connection class may raise the limit and/or opt out of fake lag
let (cls_max, cls_window, fakelag) =
connclass::flood_over(srv, uid).unwrap_or((None, None, true));
let max = cls_max.unwrap_or_else(|| srv.conf_num("flood_messages", FLOOD_MAX));
let window = cls_window.unwrap_or_else(|| srv.conf_num("flood_seconds", FLOOD_WINDOW));
let (over, warn) = {
let Some(u) = srv.users.get_mut(&uid) else {
return ModResult::Passthru;
@ -50,6 +56,12 @@ impl Module for Flood {
(over, warn)
};
if over {
if !fakelag {
// fakelag disabled: disconnect the flooder instead of throttling
srv.send(uid, "ERROR :Closing link: (Excess flood)".to_string());
srv.mark_quit(uid, "Excess flood".to_string());
return ModResult::Deny;
}
if warn {
let nick = srv
.users