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authorJohannes Berg <johannes.berg@intel.com>2022-09-02 17:12:47 +0300
committerJohannes Berg <johannes.berg@intel.com>2022-09-06 11:14:24 +0300
commit0ab26380d98655f0aab720704debfa2ac522cefd (patch)
tree423b723d8aa4ca50cc75ad92dfa066c874ad50ef
parente229f978293ef83b7412189610117ee9ac18a3ab (diff)
downloadlinux-0ab26380d98655f0aab720704debfa2ac522cefd.tar.xz
wifi: mac80211: extend ieee80211_nullfunc_get() for MLO
Add a link_id parameter to ieee80211_nullfunc_get() to be able to obtain a correctly addressed frame. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
-rw-r--r--drivers/net/wireless/ath/ath9k/channel.c2
-rw-r--r--drivers/net/wireless/realtek/rtw88/fw.c4
-rw-r--r--drivers/net/wireless/st/cw1200/sta.c4
-rw-r--r--drivers/net/wireless/ti/wl1251/main.c2
-rw-r--r--drivers/net/wireless/ti/wlcore/cmd.c4
-rw-r--r--include/net/mac80211.h5
-rw-r--r--net/mac80211/mlme.c5
-rw-r--r--net/mac80211/tx.c43
8 files changed, 43 insertions, 26 deletions
diff --git a/drivers/net/wireless/ath/ath9k/channel.c b/drivers/net/wireless/ath/ath9k/channel.c
index 6cf087522157..571062f2e82a 100644
--- a/drivers/net/wireless/ath/ath9k/channel.c
+++ b/drivers/net/wireless/ath/ath9k/channel.c
@@ -1113,7 +1113,7 @@ ath_chanctx_send_vif_ps_frame(struct ath_softc *sc, struct ath_vif *avp,
if (!avp->assoc)
return false;
- skb = ieee80211_nullfunc_get(sc->hw, vif, false);
+ skb = ieee80211_nullfunc_get(sc->hw, vif, -1, false);
if (!skb)
return false;
diff --git a/drivers/net/wireless/realtek/rtw88/fw.c b/drivers/net/wireless/realtek/rtw88/fw.c
index babba68a7132..7f6fdebae203 100644
--- a/drivers/net/wireless/realtek/rtw88/fw.c
+++ b/drivers/net/wireless/realtek/rtw88/fw.c
@@ -1082,10 +1082,10 @@ static struct sk_buff *rtw_get_rsvd_page_skb(struct ieee80211_hw *hw,
skb_new = ieee80211_proberesp_get(hw, vif);
break;
case RSVD_NULL:
- skb_new = ieee80211_nullfunc_get(hw, vif, false);
+ skb_new = ieee80211_nullfunc_get(hw, vif, -1, false);
break;
case RSVD_QOS_NULL:
- skb_new = ieee80211_nullfunc_get(hw, vif, true);
+ skb_new = ieee80211_nullfunc_get(hw, vif, -1, true);
break;
case RSVD_LPS_PG_DPK:
skb_new = rtw_lps_pg_dpk_get(hw);
diff --git a/drivers/net/wireless/st/cw1200/sta.c b/drivers/net/wireless/st/cw1200/sta.c
index 26d3614519b1..8ef1d06b9bbd 100644
--- a/drivers/net/wireless/st/cw1200/sta.c
+++ b/drivers/net/wireless/st/cw1200/sta.c
@@ -195,7 +195,7 @@ void __cw1200_cqm_bssloss_sm(struct cw1200_common *priv,
priv->bss_loss_state++;
- skb = ieee80211_nullfunc_get(priv->hw, priv->vif, false);
+ skb = ieee80211_nullfunc_get(priv->hw, priv->vif, -1, false);
WARN_ON(!skb);
if (skb)
cw1200_tx(priv->hw, NULL, skb);
@@ -2263,7 +2263,7 @@ static int cw1200_upload_null(struct cw1200_common *priv)
.rate = 0xFF,
};
- frame.skb = ieee80211_nullfunc_get(priv->hw, priv->vif, false);
+ frame.skb = ieee80211_nullfunc_get(priv->hw, priv->vif,-1, false);
if (!frame.skb)
return -ENOMEM;
diff --git a/drivers/net/wireless/ti/wl1251/main.c b/drivers/net/wireless/ti/wl1251/main.c
index 9144ef5538a8..289371689a8d 100644
--- a/drivers/net/wireless/ti/wl1251/main.c
+++ b/drivers/net/wireless/ti/wl1251/main.c
@@ -546,7 +546,7 @@ static int wl1251_build_null_data(struct wl1251 *wl)
size = sizeof(struct wl12xx_null_data_template);
ptr = NULL;
} else {
- skb = ieee80211_nullfunc_get(wl->hw, wl->vif, false);
+ skb = ieee80211_nullfunc_get(wl->hw, wl->vif, -1, false);
if (!skb)
goto out;
size = skb->len;
diff --git a/drivers/net/wireless/ti/wlcore/cmd.c b/drivers/net/wireless/ti/wlcore/cmd.c
index 138edd28b0de..a939fd89a7f5 100644
--- a/drivers/net/wireless/ti/wlcore/cmd.c
+++ b/drivers/net/wireless/ti/wlcore/cmd.c
@@ -1065,7 +1065,7 @@ int wl12xx_cmd_build_null_data(struct wl1271 *wl, struct wl12xx_vif *wlvif)
} else {
skb = ieee80211_nullfunc_get(wl->hw,
wl12xx_wlvif_to_vif(wlvif),
- false);
+ -1, false);
if (!skb)
goto out;
size = skb->len;
@@ -1092,7 +1092,7 @@ int wl12xx_cmd_build_klv_null_data(struct wl1271 *wl,
struct sk_buff *skb = NULL;
int ret = -ENOMEM;
- skb = ieee80211_nullfunc_get(wl->hw, vif, false);
+ skb = ieee80211_nullfunc_get(wl->hw, vif,-1, false);
if (!skb)
goto out;
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 954cc029a9f9..bfa6a1625c5c 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -5298,6 +5298,9 @@ struct sk_buff *ieee80211_pspoll_get(struct ieee80211_hw *hw,
* ieee80211_nullfunc_get - retrieve a nullfunc template
* @hw: pointer obtained from ieee80211_alloc_hw().
* @vif: &struct ieee80211_vif pointer from the add_interface callback.
+ * @link_id: If the vif is an MLD, get a frame with the link addresses
+ * for the given link ID. For a link_id < 0 you get a frame with
+ * MLD addresses, however useful that might be.
* @qos_ok: QoS NDP is acceptable to the caller, this should be set
* if at all possible
*
@@ -5315,7 +5318,7 @@ struct sk_buff *ieee80211_pspoll_get(struct ieee80211_hw *hw,
*/
struct sk_buff *ieee80211_nullfunc_get(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
- bool qos_ok);
+ int link_id, bool qos_ok);
/**
* ieee80211_probereq_get - retrieve a Probe Request template
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 609584493ce0..8e8607bf27dc 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1546,8 +1546,9 @@ void ieee80211_send_nullfunc(struct ieee80211_local *local,
struct ieee80211_hdr_3addr *nullfunc;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
- skb = ieee80211_nullfunc_get(&local->hw, &sdata->vif,
- !ieee80211_hw_check(&local->hw, DOESNT_SUPPORT_QOS_NDP));
+ skb = ieee80211_nullfunc_get(&local->hw, &sdata->vif, -1,
+ !ieee80211_hw_check(&local->hw,
+ DOESNT_SUPPORT_QOS_NDP));
if (!skb)
return;
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 1be8c9d83d6a..a09673117565 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -5469,33 +5469,39 @@ EXPORT_SYMBOL(ieee80211_pspoll_get);
struct sk_buff *ieee80211_nullfunc_get(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
- bool qos_ok)
+ int link_id, bool qos_ok)
{
+ struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_link_data *link = NULL;
struct ieee80211_hdr_3addr *nullfunc;
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_local *local;
struct sk_buff *skb;
bool qos = false;
if (WARN_ON(vif->type != NL80211_IFTYPE_STATION))
return NULL;
- sdata = vif_to_sdata(vif);
- local = sdata->local;
+ skb = dev_alloc_skb(local->hw.extra_tx_headroom +
+ sizeof(*nullfunc) + 2);
+ if (!skb)
+ return NULL;
+ rcu_read_lock();
if (qos_ok) {
struct sta_info *sta;
- rcu_read_lock();
- sta = sta_info_get(sdata, sdata->deflink.u.mgd.bssid);
+ sta = sta_info_get(sdata, vif->cfg.ap_addr);
qos = sta && sta->sta.wme;
- rcu_read_unlock();
}
- skb = dev_alloc_skb(local->hw.extra_tx_headroom +
- sizeof(*nullfunc) + 2);
- if (!skb)
- return NULL;
+ if (link_id >= 0) {
+ link = rcu_dereference(sdata->link[link_id]);
+ if (WARN_ON_ONCE(!link)) {
+ rcu_read_unlock();
+ kfree_skb(skb);
+ return NULL;
+ }
+ }
skb_reserve(skb, local->hw.extra_tx_headroom);
@@ -5516,9 +5522,16 @@ struct sk_buff *ieee80211_nullfunc_get(struct ieee80211_hw *hw,
skb_put_data(skb, &qoshdr, sizeof(qoshdr));
}
- memcpy(nullfunc->addr1, sdata->deflink.u.mgd.bssid, ETH_ALEN);
- memcpy(nullfunc->addr2, vif->addr, ETH_ALEN);
- memcpy(nullfunc->addr3, sdata->deflink.u.mgd.bssid, ETH_ALEN);
+ if (link) {
+ memcpy(nullfunc->addr1, link->conf->bssid, ETH_ALEN);
+ memcpy(nullfunc->addr2, link->conf->addr, ETH_ALEN);
+ memcpy(nullfunc->addr3, link->conf->bssid, ETH_ALEN);
+ } else {
+ memcpy(nullfunc->addr1, vif->cfg.ap_addr, ETH_ALEN);
+ memcpy(nullfunc->addr2, vif->addr, ETH_ALEN);
+ memcpy(nullfunc->addr3, vif->cfg.ap_addr, ETH_ALEN);
+ }
+ rcu_read_unlock();
return skb;
}