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2024-06-12wifi: cfg80211: reject non-conformant 6 GHz center frequenciesBenjamin Berg1-11/+11
On 6 GHz (and also 5 GHz to some degree), only a specific set of center frequencies should be used depending on the channel bandwidth. Verify this is the case on 6 GHz. For 5 GHz, we are more accepting as there are APs that got it wrong historically. Signed-off-by: Benjamin Berg <benjamin.berg@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://msgid.link/20240602102200.876b10a2beda.I0d3d0daea4014e99654437ff6691378dbe452652@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-03-04wifi: cfg80211: allow cfg80211_defragment_element() without outputJohannes Berg1-5/+25
If we just want to determine the length of the fragmented data, we basically need the same logic, and really we want it to be _literally_ the same logic, so it cannot be out of sync in any way. Allow calling cfg80211_defragment_element() without an output buffer, where it then just returns the required output size. Also add this to the tests, just to exercise it, using the pre-calculated length to really do the defragmentation, which checks that this is sufficient. Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com> Reviewed-by: Benjamin Berg <benjamin.berg@intel.com> Link: https://msgid.link/20240228095718.6d6565b9e3f2.Ib441903f4b8644ba04b1c766f90580ee6f54fc66@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-08wifi: cfg80211/mac80211: move puncturing into chandefJohannes Berg1-1/+47
Aloka originally suggested that puncturing should be part of the chandef, so that it's treated correctly. At the time, I disagreed and it ended up not part of the chandef, but I've now realized that this was wrong. Even for clients, the RX, and perhaps more importantly, CCA configuration needs to take puncturing into account. Move puncturing into the chandef, and adjust all the code accordingly. Also add a few tests for puncturing in chandef compatibility checking. Link: https://lore.kernel.org/linux-wireless/20220214223051.3610-1-quic_alokad@quicinc.com/ Suggested-by: Aloka Dixit <quic_alokad@quicinc.com> Link: https://msgid.link/20240129194108.307183a5d2e5.I4d7fe2f126b2366c1312010e2900dfb2abffa0f6@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-08wifi: cfg80211: simplify cfg80211_chandef_compatible()Johannes Berg2-1/+183
Simplify cfg80211_chandef_compatible() a bit by switching c1 and c2 around so that c1 is always the narrower one (once they're not identical or narrow/S1G). Then we can just check the various primary channels and exit with the wider one (c2), or NULL. Also refactor the primary 40/80/160 function to not have all the calculations hard-coded, and use a wrapper around it to check primary 40/80/160 compatibility. While at it, add some kunit tests for this functionality. Also expose the new cfg80211_chandef_primary_freq() to drivers, mac80211 will use it. Link: https://msgid.link/20240129194108.be3e6eccaba3.I8399c2ff1435d7378e5837794cb5aa6dd2ee1416@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-02wifi: cfg80211: tests: verify BSS use flags of NSTR linksBenjamin Berg1-12/+56
Extend the test to pass an RNR appropriate for an NSTR and verify that use_for as well as cannot_use_reasons are set correctly. Signed-off-by: Benjamin Berg <benjamin.berg@intel.com> Link: https://msgid.link/20240129220918.b00aee4c4c9f.I942fddf51cabaab761de3865b4e06cce831a46ef@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-02wifi: cfg80211: add a kunit test for 6 GHz colocated AP parsingBenjamin Berg1-0/+179
Test a few things around parsing of 6 GHz colocated APs to e.g. ensure that we are not going to scan for a disabled (affiliated) AP. Signed-off-by: Benjamin Berg <benjamin.berg@intel.com> Link: https://msgid.link/20240129220918.079dc50ab43b.Ide898d9f1d4c26d7e774d6fd0ec57766967d6572@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-01-26wifi: cfg80211: add RNR with reporting AP informationBenjamin Berg1-3/+33
If the reporting AP is part of the same MLD, then an entry in the RNR is required in order to discover it again from the BSS generated from the per-STA profile in the Multi-Link Probe Response. We need this because we do not have a direct concept of an MLD AP and just do the lookup from one to the other on the fly if needed. As such, we need to ensure that this lookup will work both ways. Fixes: 2481b5da9c6b ("wifi: cfg80211: handle BSS data contained in ML probe responses") Signed-off-by: Benjamin Berg <benjamin.berg@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://msgid.link/20240102213313.4cb3dbb1d84f.I7c74edec83c5d7598cdd578929fd0876d67aef7f@changeid [roll in off-by-one fix and test updates from Benjamin] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-01-03wifi: cfg80211: tests: add some scanning related testsBenjamin Berg4-1/+748
This adds some scanning related tests, mainly exercising the ML element parsing and inheritance. Signed-off-by: Benjamin Berg <benjamin.berg@intel.com> Link: https://msgid.link/20231220151952.415232-7-benjamin@sipsolutions.net Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-09-11wifi: cfg80211: add first kunit tests, for element defragJohannes Berg3-0/+170
Add a couple of tests for element defragmentation, to see that the function works correctly. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Gregory Greenman <gregory.greenman@intel.com> Link: https://lore.kernel.org/r/20230827135854.e2a5cead1816.I09f0edc19d162b54ee330991c728c1e9aa42ebf6@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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