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mac80211: check whether HE connection is allowed by the reg domain

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The wireless device might be capable to connect HE
as well as the AP. However, the regulatory domain might
forbid it. Check whether the regulatory domain allows HE connection
when considering if HE IE should be added.
Also, add it when setting our peer capability.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/20200131111300.891737-8-luca@coelho.fi
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Haim Dreyfuss 2020-01-31 13:12:44 +02:00 committed by Johannes Berg
parent e4d005b80d
commit b5db1acab1
1 changed files with 16 additions and 1 deletions
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17
net/mac80211/mlme.c
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@ -313,6 +313,10 @@ out:
ret |= ieee80211_chandef_downgrade(chandef);
}
if (!cfg80211_chandef_usable(sdata->wdev.wiphy, chandef,
IEEE80211_CHAN_NO_HE))
ret |= IEEE80211_STA_DISABLE_HE;
if (chandef->width != vht_chandef.width && !tracking)
sdata_info(sdata,
"capabilities/regulatory prevented using AP HT/VHT configuration, downgraded\n");
@ -622,10 +626,21 @@ static void ieee80211_add_he_ie(struct ieee80211_sub_if_data *sdata,
{
u8 *pos;
const struct ieee80211_sta_he_cap *he_cap = NULL;
struct ieee80211_chanctx_conf *chanctx_conf;
u8 he_cap_size;
bool reg_cap = false;
rcu_read_lock();
chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
if (!WARN_ON_ONCE(!chanctx_conf))
reg_cap = cfg80211_chandef_usable(sdata->wdev.wiphy,
&chanctx_conf->def,
IEEE80211_CHAN_NO_HE);
rcu_read_unlock();
he_cap = ieee80211_get_he_sta_cap(sband);
if (!he_cap)
if (!he_cap || !reg_cap)
return;
/*