ieee80211: reject AP data from unassociated transmitters - #1206
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Validate the original MPDU transmitter before data service or A-MSDU address rewriting, while preserving immediate ACK behavior. Full APs discard unauthorized data; the simplified AP retains its documented all-associated abstraction. Clear authoritative station state on AP shutdown. A typed MAC-to-management indication requests the verified State-2 response: Disassociation reason 7 for an authenticated but unassociated individual transmitter. Do not infer a mandatory State-1 Deauthentication rule from historical drafts. DCF/HCF rejection and associated positive controls, lifecycle tests, and the on-air State-2 response pass. The SignalLevels showcase now rejects one cross-SSID ARP data frame at accessPointB, changing only its tplx trajectory fingerprint from 51ec-d359 to 051b-668f. The other fingerprint ingredients and the neighboring IEEE 802.11 visualizer configurations remain unchanged. Change: src.ieee80211.ap | behavior.change.fix | test | wifi-audit
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Summary
An AP could forward uplink data without checking the original MPDU transmitter. Enforce association before recipient data processing, preserve immediate ACK behavior, and route authenticated-unassociated Class-3 violations to management for reason-7 Disassociation.
Scope
DCF/HCF admission, MIB, typed Class-3 indication and full AP management.
Standards references: IEEE 802.11-2024 §§11.3.3, 11.3.5.1 and 10.3.2.11.
Dependencies and merge order
No prerequisite within this audit series; this topic was built and tested independently on the pinned base.
Validation
Pinned test base:
7287f347aaca36e557c708d6930a6f5a450b2833.The isolated topic head passed an assertions-enabled debug build (
-O0 -Wall -g0; debug symbols omitted for storage) and the focused checks below. The larger integration source tree also passed debug and release compilation; no separate release build is claimed for this topic.Executed focused test commands, from the repository root after
source setenv -q:inet_run_module_tests -m debug -f 'Ieee80211(ApClass3Response|ApSourceAdmission|ApSourceAdmissionQos|MgmtApLifecycle)_1\.test'Results: 4 module cases passed.
Limits and review status
Simplified AP retains its documented admission behavior. No unverified mandatory State-1 Deauthentication rule is asserted.
Draft pending final independent review and reconciliation with current upstream. Live PR overlap has not been reverified against the pinned test base.