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-rw-r--r--net/mac80211/cfg.c20
-rw-r--r--net/mac80211/debugfs_netdev.c11
-rw-r--r--net/mac80211/ieee80211_i.h18
-rw-r--r--net/mac80211/iface.c16
-rw-r--r--net/mac80211/rx.c5
-rw-r--r--net/mac80211/sta_info.c10
-rw-r--r--net/mac80211/tx.c5
7 files changed, 58 insertions, 27 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 7de34a3fbd35..eb68add4393c 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1520,9 +1520,6 @@ static int ieee80211_change_station(struct wiphy *wiphy,
goto out_err;
if (params->vlan && params->vlan != sta->sdata->dev) {
- bool prev_4addr = false;
- bool new_4addr = false;
-
vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
if (params->vlan->ieee80211_ptr->use_4addr) {
@@ -1532,26 +1529,21 @@ static int ieee80211_change_station(struct wiphy *wiphy,
}
rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
- new_4addr = true;
__ieee80211_check_fast_rx_iface(vlansdata);
}
if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
- sta->sdata->u.vlan.sta) {
+ sta->sdata->u.vlan.sta)
RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
- prev_4addr = true;
- }
+
+ if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
+ ieee80211_vif_dec_num_mcast(sta->sdata);
sta->sdata = vlansdata;
ieee80211_check_fast_xmit(sta);
- if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
- prev_4addr != new_4addr) {
- if (new_4addr)
- atomic_dec(&sta->sdata->bss->num_mcast_sta);
- else
- atomic_inc(&sta->sdata->bss->num_mcast_sta);
- }
+ if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
+ ieee80211_vif_inc_num_mcast(sta->sdata);
ieee80211_send_layer2_update(sta);
}
diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c
index bcec1240f41d..1a05f85cb1f0 100644
--- a/net/mac80211/debugfs_netdev.c
+++ b/net/mac80211/debugfs_netdev.c
@@ -477,6 +477,7 @@ IEEE80211_IF_FILE_RW(tdls_wider_bw);
IEEE80211_IF_FILE(num_mcast_sta, u.ap.num_mcast_sta, ATOMIC);
IEEE80211_IF_FILE(num_sta_ps, u.ap.ps.num_sta_ps, ATOMIC);
IEEE80211_IF_FILE(dtim_count, u.ap.ps.dtim_count, DEC);
+IEEE80211_IF_FILE(num_mcast_sta_vlan, u.vlan.num_mcast_sta, ATOMIC);
static ssize_t ieee80211_if_fmt_num_buffered_multicast(
const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
@@ -684,6 +685,13 @@ static void add_ap_files(struct ieee80211_sub_if_data *sdata)
DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
}
+static void add_vlan_files(struct ieee80211_sub_if_data *sdata)
+{
+ /* add num_mcast_sta_vlan using name num_mcast_sta */
+ debugfs_create_file("num_mcast_sta", 0400, sdata->vif.debugfs_dir,
+ sdata, &num_mcast_sta_vlan_ops);
+}
+
static void add_ibss_files(struct ieee80211_sub_if_data *sdata)
{
DEBUGFS_ADD_MODE(tsf, 0600);
@@ -787,6 +795,9 @@ static void add_files(struct ieee80211_sub_if_data *sdata)
case NL80211_IFTYPE_AP:
add_ap_files(sdata);
break;
+ case NL80211_IFTYPE_AP_VLAN:
+ add_vlan_files(sdata);
+ break;
case NL80211_IFTYPE_WDS:
add_wds_files(sdata);
break;
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 34c2add2c455..103187ca9474 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -307,6 +307,7 @@ struct ieee80211_if_vlan {
/* used for all tx if the VLAN is configured to 4-addr mode */
struct sta_info __rcu *sta;
+ atomic_t num_mcast_sta; /* number of stations receiving multicast */
};
struct mesh_stats {
@@ -1527,6 +1528,23 @@ ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
return false;
}
+void ieee80211_vif_inc_num_mcast(struct ieee80211_sub_if_data *sdata);
+void ieee80211_vif_dec_num_mcast(struct ieee80211_sub_if_data *sdata);
+
+/* This function returns the number of multicast stations connected to this
+ * interface. It returns -1 if that number is not tracked, that is for netdevs
+ * not in AP or AP_VLAN mode or when using 4addr.
+ */
+static inline int
+ieee80211_vif_get_num_mcast_if(struct ieee80211_sub_if_data *sdata)
+{
+ if (sdata->vif.type == NL80211_IFTYPE_AP)
+ return atomic_read(&sdata->u.ap.num_mcast_sta);
+ if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta)
+ return atomic_read(&sdata->u.vlan.num_mcast_sta);
+ return -1;
+}
+
u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
struct ieee80211_rx_status *status,
unsigned int mpdu_len,
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 638ec0759078..a8245d9bdd2c 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -2005,3 +2005,19 @@ void ieee80211_iface_exit(void)
{
unregister_netdevice_notifier(&mac80211_netdev_notifier);
}
+
+void ieee80211_vif_inc_num_mcast(struct ieee80211_sub_if_data *sdata)
+{
+ if (sdata->vif.type == NL80211_IFTYPE_AP)
+ atomic_inc(&sdata->u.ap.num_mcast_sta);
+ else if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
+ atomic_inc(&sdata->u.vlan.num_mcast_sta);
+}
+
+void ieee80211_vif_dec_num_mcast(struct ieee80211_sub_if_data *sdata)
+{
+ if (sdata->vif.type == NL80211_IFTYPE_AP)
+ atomic_dec(&sdata->u.ap.num_mcast_sta);
+ else if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
+ atomic_dec(&sdata->u.vlan.num_mcast_sta);
+}
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 6175db385ba7..fc08a50b3ebd 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -2215,7 +2215,8 @@ ieee80211_deliver_skb(struct ieee80211_rx_data *rx)
sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
!(sdata->flags & IEEE80211_SDATA_DONT_BRIDGE_PACKETS) &&
(sdata->vif.type != NL80211_IFTYPE_AP_VLAN || !sdata->u.vlan.sta)) {
- if (is_multicast_ether_addr(ehdr->h_dest)) {
+ if (is_multicast_ether_addr(ehdr->h_dest) &&
+ ieee80211_vif_get_num_mcast_if(sdata) != 0) {
/*
* send multicast frames both to higher layers in
* local net stack and back to the wireless medium
@@ -2224,7 +2225,7 @@ ieee80211_deliver_skb(struct ieee80211_rx_data *rx)
if (!xmit_skb)
net_info_ratelimited("%s: failed to clone multicast frame\n",
dev->name);
- } else {
+ } else if (!is_multicast_ether_addr(ehdr->h_dest)) {
dsta = sta_info_get(sdata, skb->data);
if (dsta) {
/*
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 78e9ecbc96e6..ab91e1e1b8ec 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -1871,10 +1871,7 @@ int sta_info_move_state(struct sta_info *sta,
if (!sta->sta.support_p2p_ps)
ieee80211_recalc_p2p_go_ps_allowed(sta->sdata);
} else if (sta->sta_state == IEEE80211_STA_AUTHORIZED) {
- if (sta->sdata->vif.type == NL80211_IFTYPE_AP ||
- (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
- !sta->sdata->u.vlan.sta))
- atomic_dec(&sta->sdata->bss->num_mcast_sta);
+ ieee80211_vif_dec_num_mcast(sta->sdata);
clear_bit(WLAN_STA_AUTHORIZED, &sta->_flags);
ieee80211_clear_fast_xmit(sta);
ieee80211_clear_fast_rx(sta);
@@ -1882,10 +1879,7 @@ int sta_info_move_state(struct sta_info *sta,
break;
case IEEE80211_STA_AUTHORIZED:
if (sta->sta_state == IEEE80211_STA_ASSOC) {
- if (sta->sdata->vif.type == NL80211_IFTYPE_AP ||
- (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
- !sta->sdata->u.vlan.sta))
- atomic_inc(&sta->sdata->bss->num_mcast_sta);
+ ieee80211_vif_inc_num_mcast(sta->sdata);
set_bit(WLAN_STA_AUTHORIZED, &sta->_flags);
ieee80211_check_fast_xmit(sta);
ieee80211_check_fast_rx(sta);
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 1c56abc49627..f5d45e4bdccc 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -331,9 +331,8 @@ ieee80211_tx_h_check_assoc(struct ieee80211_tx_data *tx)
I802_DEBUG_INC(tx->local->tx_handlers_drop_not_assoc);
return TX_DROP;
}
- } else if (unlikely(tx->sdata->vif.type == NL80211_IFTYPE_AP &&
- ieee80211_is_data(hdr->frame_control) &&
- !atomic_read(&tx->sdata->u.ap.num_mcast_sta))) {
+ } else if (unlikely(ieee80211_is_data(hdr->frame_control) &&
+ ieee80211_vif_get_num_mcast_if(tx->sdata) == 0)) {
/*
* No associated STAs - no need to send multicast
* frames.
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-20 10:10:18 +0000