Asb 2023 01 #37
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Asb 2023 01 #37
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From 0b7808818cb9df6680f98996b8e9a439fa7bcc2f "wifi: cfg80211: fix BSS refcounting bugs" Change-Id: I0fcb54c7bef1a236b291102245c9ecc8515aea32
commit 1833b6f46d7e2830251a063935ab464256defe22 upstream. If the tool on the other side (e.g. wmediumd) gets confused about the rate, we hit a warning in mac80211. Silence that by effectively duplicating the check here and dropping the frame silently (in mac80211 it's dropped with the warning). Reported-by: Sönke Huster <shuster@seemoo.tu-darmstadt.de> Tested-by: Sönke Huster <shuster@seemoo.tu-darmstadt.de> Change-Id: Ibdca0a0e1ba4bd559e84f115ed7e36fb4eae6d9a Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
On some practical cases, it is useful to drop new node in the distance.
Because mesh metric is calculated with hop count and without RSSI
information, a node far from local peer and near to destination node
could be used as best path.
For example, the nodes are located in linear. Distance of 0 - 1 and
1 - 2 and 2 - 3 is 20meters. 0 to 3 signal is very weak.
0 --- 1 --- 2 --- 3
Though most robust path from 0 to 3 is 0 -> 1 -> 2 -> 3,
unfortunately, node 0 could recognize node 3 as neighbor. Then node 3
could be next of node 0. This patch aims to avoid such a case.
[Johannes:]
Dropping the node entirely isn't ideal, but at least with encryption
there will be a limit on # of keys the hardware can deal with, and
there might also be a limit on the number of stations it supports.
Change-Id: If0607006c04bf2ae2e7b839490c86b238e2e41af
Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Backported: Alexander Grund
When peering is in userspace, some implementations may want to control which peers are accepted based on RSSI in addition to the information elements being sent today. Add signal level so that info is available to clients. Change-Id: Iae29de6adcb51c2dff58c0ea17e74cd988949991 Signed-off-by: Bob Copeland <bobcopeland@fb.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Backported: Alexander Grund
Previously mesh channel switch happens if beacon contains CSA IE without checking the mesh peer info. Due to that channel switch happens even if the beacon is not from its own mesh peer. Fixing that by checking if the CSA originated from the same mesh network before proceeding for channel switch. Change-Id: I29a30eef37e2633399c5b6d0c6ca3fccc0816ada Signed-off-by: Tamizh chelvam <tamizhr@codeaurora.org> Link: https://lore.kernel.org/r/1585403604-29274-1-git-send-email-tamizhr@codeaurora.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
commit a5b983c6073140b624f64e79fea6d33c3e4315a0 upstream. We currently pass the entire elements to the rx_bcn_presp() method, but only need mesh_config. Additionally, we use the length of the elements to calculate back the entire frame's length, but that's confusing - just pass the length of the frame instead. Link: https://lore.kernel.org/r/20210920154009.a18ed3d2da6c.I1824b773a0fbae4453e1433c184678ca14e8df45@changeid Change-Id: I38a67d1a25406f57f57cd747d4888d763e1d63d6 Signed-off-by: Johannes Berg <johannes.berg@intel.com> Cc: Felix Fietkau <nbd@nbd.name> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Backported: Alexander Grund
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