next/1430/20260708/v1#15831
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Extend the app-layer-protocol keyword to accept a pipe-separated list of
protocol values, so a single rule can match any of several protocols:
app-layer-protocol:[!]<proto1>|<proto2>[|...][,<qualifier>]...;
A non-negated list matches when the flow's protocol equals any listed value
(OR); a negated list matches when it equals none of them (NOR). The
single-value form and the trailing mode qualifier are unchanged.
Matching keeps the historical AppProtoEquals() equivalences by default
(dns/doh2, http/http1/http2, dcerpc/smb, ...). An `exact` qualifier selects
strict identity matching with no equivalences and no http umbrella; it
combines with a direction mode in any order. Because a flow is never the
generic ALPROTO_HTTP, `http,exact` is rejected at load.
Values are expanded once at rule load into an effective match-set bitmask, so
the per-packet match is a single bitmask test. Single-value rules remain
prefilterable; multi-value rules are excluded from prefiltering and an
explicit prefilter on them is rejected. Conflicting keyword combinations
(duplicate or overlapping negations, mixed positive/negated) are rejected at
load. Engine-analysis reports the effective match set.
Ticket: 7705
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NOTE: This PR may contain new authors. |
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WARNING:
Pipeline = 32501 |
Codecov Report❌ Patch coverage is Additional details and impacted files@@ Coverage Diff @@
## main #15831 +/- ##
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+ Coverage 82.93% 82.97% +0.04%
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Files 1003 1003
Lines 275204 275506 +302
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+ Hits 228239 228606 +367
+ Misses 46965 46900 -65
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Staging:
SV_BRANCH=OISF/suricata-verify#3222