kernel/linux.git/net/mac80211/ibss.c, branch v6.2

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2022-09-01T19:58:02+00:00

tools/testing/selftests/net/.gitignore sort the net-next version and use it Signed-off-by: Jakub Kicinski

wifi: mac80211: use full 'unsigned int' type

2022-08-26T07:58:54+00:00

The full 'unsigned int' is better than 'unsigned'. Signed-off-by: Xin Gao Link: https://lore.kernel.org/r/20220816181040.9044-1-gaoxin@cdjrlc.com [fix indentation] Signed-off-by: Johannes Berg

wifi: mac80211: Don't finalize CSA in IBSS mode if state is disconnected

2022-08-25T08:03:47+00:00

When we are not connected to a channel, sending channel "switch" announcement doesn't make any sense. The BSS list is empty in that case. This causes the for loop in cfg80211_get_bss() to be bypassed, so the function returns NULL (check line 1424 of net/wireless/scan.c), causing the WARN_ON() in ieee80211_ibss_csa_beacon() to get triggered (check line 500 of net/mac80211/ibss.c), which was consequently reported on the syzkaller dashboard. Thus, check if we have an existing connection before generating the CSA beacon in ieee80211_ibss_finish_csa(). Cc: stable@vger.kernel.org Fixes: cd7760e62c2a ("mac80211: add support for CSA in IBSS mode") Link: https://syzkaller.appspot.com/bug?id=05603ef4ae8926761b678d2939a3b2ad28ab9ca6 Reported-by: syzbot+b6c9fe29aefe68e4ad34@syzkaller.appspotmail.com Signed-off-by: Siddh Raman Pant Tested-by: syzbot+b6c9fe29aefe68e4ad34@syzkaller.appspotmail.com Link: https://lore.kernel.org/r/20220814151512.9985-1-code@siddh.me Signed-off-by: Johannes Berg

wifi: mac80211: fix up link station creation/insertion

2022-07-15T09:43:23+00:00

When we create a station with a non-default link, then we should have a link address, and we definitely need to insert it into the link hash table on insertion. Split the API into with and without link creation and if it has a link, insert the link into the link hash table on sta_info_insert(). Fixes: ba6ddab94fc6 ("wifi: mac80211: maintain link-sta hash table") Signed-off-by: Johannes Berg

wifi: mac80211: move IEEE80211_SDATA_OPERATING_GMODE to link

2022-07-15T09:43:21+00:00

The flag here is currently per interface, but the way we set and clear it means it should be per link, so change it. Signed-off-by: Johannes Berg

wifi: mac80211: fix multi-BSSID element parsing

2022-07-15T09:43:17+00:00

When parsing a frame containing a multi-BSSID element, we need to know both the transmitted and non-transmitted BSSID so we can parse it correctly. Unfortunately, in quite a number of cases, we got this wrong and were passing the wrong BSSID or useless information: * the mgmt->bssid from a frame is only the transmitted BSSID if the frame is a beacon * passing just one of the parameters as non-NULL isn't useful and ignored In those case where we need to parse for a specific BSS we always have a BSS structure pointer, representing the BSS we need, whether transmitted or not. Thus, pass that pointer to the parsing function instead of the two BSSIDs. Also fix two bugs: * we need to re-parse all the elements for the other BSS when iterating the non-transmitted BSSes in scan * we need to parse for the correct BSS when setting up the channel data in client code Fixes: 78ac51f81532 ("mac80211: support multi-bssid") Signed-off-by: Johannes Berg

wifi: mac80211: change QoS settings API to take link into account

2022-07-15T09:43:15+00:00

Take the link into account in the QoS settings (EDCA parameters) APIs. Signed-off-by: Johannes Berg

wifi: mac80211: separate out connection downgrade flags

2022-07-15T09:43:14+00:00

Separate out the connection downgrade flags from the ifmgd->flags and put them into the link information instead. While at it, make them a separate sparse type so we don't get confused about where they belong and have static checking on correct handling. Signed-off-by: Johannes Berg

wifi: mac80211: RCU-ify link/link_conf pointers

2022-07-15T09:43:14+00:00

Since links can be added and removed dynamically, we need to somehow protect the sdata->link[] and vif->link_conf[] array pointers from disappearing when accessing them without locks. RCU-ify the pointers to achieve this, which requires quite a bit of rework. Signed-off-by: Johannes Berg

wifi: mac80211: consistently use sdata_dereference()

2022-07-15T09:43:12+00:00

Instead of open-coding it, use sdata_dereference(). Signed-off-by: Johannes Berg