diff options
| author | Ilan Peer <ilan.peer@intel.com> | 2022-02-14 17:30:01 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2022-02-16 15:44:00 +0100 |
| commit | 820acc810fb6ec43459ed313a361cf3a9e26cc44 (patch) | |
| tree | 2b1828f3253482bf2689ada1b97f20e9ee610e07 /net/mac80211/mlme.c | |
| parent | 5dca295dd76756c7918ad7113fc4a3cf8262ed43 (diff) | |
| download | linux-820acc810fb6ec43459ed313a361cf3a9e26cc44.tar.gz linux-820acc810fb6ec43459ed313a361cf3a9e26cc44.tar.bz2 linux-820acc810fb6ec43459ed313a361cf3a9e26cc44.zip | |
mac80211: Add EHT capabilities to association/probe request
Add the EHT capabilities element to both probe request and
association request frames, if advertised by the driver.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Link: https://lore.kernel.org/r/20220214173004.2ec94388acee.I40d2ef06099cb091e9c2c01f8ef521b993a3d559@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/mlme.c')
| -rw-r--r-- | net/mac80211/mlme.c | 48 |
1 files changed, 47 insertions, 1 deletions
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index dac0b495ae76..752aa8734af6 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -692,6 +692,48 @@ static void ieee80211_add_he_ie(struct ieee80211_sub_if_data *sdata, ieee80211_ie_build_he_6ghz_cap(sdata, skb); } +static void ieee80211_add_eht_ie(struct ieee80211_sub_if_data *sdata, + struct sk_buff *skb, + struct ieee80211_supported_band *sband) +{ + u8 *pos; + const struct ieee80211_sta_he_cap *he_cap; + const struct ieee80211_sta_eht_cap *eht_cap; + struct ieee80211_chanctx_conf *chanctx_conf; + u8 eht_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 | + IEEE80211_CHAN_NO_EHT); + rcu_read_unlock(); + + he_cap = ieee80211_get_he_iftype_cap(sband, + ieee80211_vif_type_p2p(&sdata->vif)); + eht_cap = ieee80211_get_eht_iftype_cap(sband, + ieee80211_vif_type_p2p(&sdata->vif)); + + /* + * EHT capabilities element is only added if the HE capabilities element + * was added so assume that 'he_cap' is valid and don't check it. + */ + if (WARN_ON(!he_cap || !eht_cap || !reg_cap)) + return; + + eht_cap_size = + 2 + 1 + sizeof(eht_cap->eht_cap_elem) + + ieee80211_eht_mcs_nss_size(&he_cap->he_cap_elem, + &eht_cap->eht_cap_elem) + + ieee80211_eht_ppe_size(eht_cap->eht_ppe_thres[0], + eht_cap->eht_cap_elem.phy_cap_info); + pos = skb_put(skb, eht_cap_size); + ieee80211_ie_build_eht_cap(pos, he_cap, eht_cap, pos + eht_cap_size); +} + static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) { struct ieee80211_local *local = sdata->local; @@ -1020,9 +1062,13 @@ skip_rates: ifmgd->flags |= IEEE80211_STA_DISABLE_HE | IEEE80211_STA_DISABLE_EHT; - if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HE)) + if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HE)) { ieee80211_add_he_ie(sdata, skb, sband); + if (!(ifmgd->flags & IEEE80211_STA_DISABLE_EHT)) + ieee80211_add_eht_ie(sdata, skb, sband); + } + /* if present, add any custom non-vendor IEs that go after HE */ if (assoc_data->ie_len) { noffset = ieee80211_ie_split_vendor(assoc_data->ie, |