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Rainer Gerhards 2026-02-27 11:54:04 +01:00
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Scheduled Release 8.2604.0 (aka 2026.04) 2026-04-??
- 2026-02-27: ratelimit: wire ratelimit.name into remaining modules
Why: Commit 3ee31a8d0 added shared named ratelimit support
(ratelimit.name + ratelimitNewFromConfig) but only wired it
into imtcp, imptcp, and imudp. Seven modules with existing
ratelimit.interval/ratelimit.burst support were left without
the ability to reference shared ratelimit() objects.
Impact: Adds ratelimit.name parameter to omfwd,
omelasticsearch, omhttp, imhttp, imjournal, imklog, and
imuxsock. Existing configurations remain unchanged.
Before: These seven modules could only use inline
ratelimit.interval/ratelimit.burst parameters.
After: All modules can now reference shared ratelimit()
configuration objects via ratelimit.name.
Technical Overview:
For each module, the same pattern from the imudp reference
implementation is applied:
- Add uchar *pszRatelimitName to config struct
- Add ratelimit.name to cnfparamdescr
- Change interval/burst defaults to -1 (sentinel)
- Parse ratelimit.name in config handler
- Add mutual-exclusivity check (name vs interval/burst)
- Branch ratelimiter creation on pszRatelimitName:
if set, call ratelimitNewFromConfig(); else legacy path
- Free pszRatelimitName in destructor
imuxsock is the most complex: it supports both per-socket
ratelimit.name and syssock.ratelimit.name, with the
per-source hashtable ratelimiter path also updated.
imklog uses legacy parameter names (ratelimitinterval,
ratelimitburst) but the new parameter uses the dotted
form (ratelimit.name) for consistency.
Each module receives a parameter doc page, module doc
update, and a config-validation test.
- 2026-02-27: omusrmsg: add ratelimit support
Add ratelimit.interval, ratelimit.burst, and ratelimit.name parameters
to omusrmsg. This prevents scenarios where emergency message floods