Kernel/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-01-16 18:08:20 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

wifi: mac80211: accept broadcast probe responses on 6 GHz

Browse Source 
On the 6 GHz band, probe responses are sent as broadcast to
optimise medium usage. However, without OCE configuration
we weren't accepting them, which is wrong, even if wpa_s is
by default enabling OCE. Accept them without the OCE config
as well.

Link: https://msgid.link/20240129200907.5a89c2821897.I92e9dfa0f9b350bc7f37dd4bb38031d156d78d8a@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2024-01-29 20:09:07 +01:00
parent c042600c17
commit 62a6183c13
1 changed files with 18 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
net/mac80211/scan.c
View File

@ -9,7 +9,7 @@
* Copyright 2007, Michael Wu <flamingice@sourmilk.net>
* Copyright 2013-2015 Intel Mobile Communications GmbH
* Copyright 2016-2017 Intel Deutschland GmbH
* Copyright (C) 2018-2023 Intel Corporation
* Copyright (C) 2018-2024 Intel Corporation
*/
#include <linux/if_arp.h>
@ -237,14 +237,18 @@ ieee80211_bss_info_update(struct ieee80211_local *local,
}
static bool ieee80211_scan_accept_presp(struct ieee80211_sub_if_data *sdata,
struct ieee80211_channel *channel,
u32 scan_flags, const u8 *da)
{
if (!sdata)
return false;
/* accept broadcast for OCE */
if (scan_flags & NL80211_SCAN_FLAG_ACCEPT_BCAST_PROBE_RESP &&
is_broadcast_ether_addr(da))
/* accept broadcast on 6 GHz and for OCE */
if (is_broadcast_ether_addr(da) &&
(channel->band == NL80211_BAND_6GHZ ||
scan_flags & NL80211_SCAN_FLAG_ACCEPT_BCAST_PROBE_RESP))
return true;
if (scan_flags & NL80211_SCAN_FLAG_RANDOM_ADDR)
return true;
return ether_addr_equal(da, sdata->vif.addr);
@ -293,6 +297,12 @@ void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb)
wiphy_delayed_work_queue(local->hw.wiphy, &local->scan_work, 0);
}
channel = ieee80211_get_channel_khz(local->hw.wiphy,
ieee80211_rx_status_to_khz(rx_status));
if (!channel || channel->flags & IEEE80211_CHAN_DISABLED)
return;
if (ieee80211_is_probe_resp(mgmt->frame_control)) {
struct cfg80211_scan_request *scan_req;
struct cfg80211_sched_scan_request *sched_scan_req;
@ -310,19 +320,15 @@ void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb)
/* ignore ProbeResp to foreign address or non-bcast (OCE)
* unless scanning with randomised address
*/
if (!ieee80211_scan_accept_presp(sdata1, scan_req_flags,
if (!ieee80211_scan_accept_presp(sdata1, channel,
scan_req_flags,
mgmt->da) &&
!ieee80211_scan_accept_presp(sdata2, sched_scan_req_flags,
!ieee80211_scan_accept_presp(sdata2, channel,
sched_scan_req_flags,
mgmt->da))
return;
}
channel = ieee80211_get_channel_khz(local->hw.wiphy,
ieee80211_rx_status_to_khz(rx_status));
if (!channel || channel->flags & IEEE80211_CHAN_DISABLED)
return;
bss = ieee80211_bss_info_update(local, rx_status,
mgmt, skb->len,
channel);