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-rw-r--r--net/mac80211/offchannel.c88
1 files changed, 63 insertions, 25 deletions
diff --git a/net/mac80211/offchannel.c b/net/mac80211/offchannel.c
index 853c9a369d72..d78c82d6b696 100644
--- a/net/mac80211/offchannel.c
+++ b/net/mac80211/offchannel.c
@@ -8,7 +8,7 @@
* Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
* Copyright 2007, Michael Wu <flamingice@sourmilk.net>
* Copyright 2009 Johannes Berg <johannes@sipsolutions.net>
- * Copyright (C) 2019 Intel Corporation
+ * Copyright (C) 2019, 2022 Intel Corporation
*/
#include <linux/export.h>
#include <net/mac80211.h>
@@ -118,8 +118,9 @@ void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local)
set_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
&sdata->state);
sdata->vif.bss_conf.enable_beacon = false;
- ieee80211_bss_info_change_notify(
- sdata, BSS_CHANGED_BEACON_ENABLED);
+ ieee80211_link_info_change_notify(
+ sdata, &sdata->deflink,
+ BSS_CHANGED_BEACON_ENABLED);
}
if (sdata->vif.type == NL80211_IFTYPE_STATION &&
@@ -155,8 +156,9 @@ void ieee80211_offchannel_return(struct ieee80211_local *local)
if (test_and_clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
&sdata->state)) {
sdata->vif.bss_conf.enable_beacon = true;
- ieee80211_bss_info_change_notify(
- sdata, BSS_CHANGED_BEACON_ENABLED);
+ ieee80211_link_info_change_notify(
+ sdata, &sdata->deflink,
+ BSS_CHANGED_BEACON_ENABLED);
}
}
mutex_unlock(&local->iflist_mtx);
@@ -767,9 +769,11 @@ int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
struct ieee80211_local *local = sdata->local;
struct sk_buff *skb;
- struct sta_info *sta;
+ struct sta_info *sta = NULL;
const struct ieee80211_mgmt *mgmt = (void *)params->buf;
bool need_offchan = false;
+ bool mlo_sta = false;
+ int link_id = -1;
u32 flags;
int ret;
u8 *data;
@@ -785,7 +789,7 @@ int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
switch (sdata->vif.type) {
case NL80211_IFTYPE_ADHOC:
- if (!sdata->vif.bss_conf.ibss_joined)
+ if (!sdata->vif.cfg.ibss_joined)
need_offchan = true;
#ifdef CONFIG_MAC80211_MESH
fallthrough;
@@ -800,18 +804,32 @@ int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
case NL80211_IFTYPE_P2P_GO:
if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
!ieee80211_vif_is_mesh(&sdata->vif) &&
- !rcu_access_pointer(sdata->bss->beacon))
+ !sdata->bss->active)
need_offchan = true;
+
+ rcu_read_lock();
+ sta = sta_info_get_bss(sdata, mgmt->da);
+ mlo_sta = sta && sta->sta.mlo;
+
if (!ieee80211_is_action(mgmt->frame_control) ||
mgmt->u.action.category == WLAN_CATEGORY_PUBLIC ||
mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED ||
- mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT)
+ mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT) {
+ rcu_read_unlock();
break;
- rcu_read_lock();
- sta = sta_info_get_bss(sdata, mgmt->da);
- rcu_read_unlock();
- if (!sta)
+ }
+
+ if (!sta) {
+ rcu_read_unlock();
+ return -ENOLINK;
+ }
+ if (params->link_id >= 0 &&
+ !(sta->sta.valid_links & BIT(params->link_id))) {
+ rcu_read_unlock();
return -ENOLINK;
+ }
+ link_id = params->link_id;
+ rcu_read_unlock();
break;
case NL80211_IFTYPE_STATION:
case NL80211_IFTYPE_P2P_CLIENT:
@@ -819,8 +837,7 @@ int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
if (!sdata->u.mgd.associated ||
(params->offchan && params->wait &&
local->ops->remain_on_channel &&
- memcmp(sdata->u.mgd.associated->bssid,
- mgmt->bssid, ETH_ALEN)))
+ memcmp(sdata->vif.cfg.ap_addr, mgmt->bssid, ETH_ALEN)))
need_offchan = true;
sdata_unlock(sdata);
break;
@@ -841,20 +858,41 @@ int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
mutex_lock(&local->mtx);
/* Check if the operating channel is the requested channel */
- if (!need_offchan) {
- struct ieee80211_chanctx_conf *chanctx_conf;
+ if (!params->chan && mlo_sta) {
+ need_offchan = false;
+ } else if (!need_offchan) {
+ struct ieee80211_chanctx_conf *chanctx_conf = NULL;
+ int i;
rcu_read_lock();
- chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+ /* Check all the links first */
+ for (i = 0; i < ARRAY_SIZE(sdata->vif.link_conf); i++) {
+ struct ieee80211_bss_conf *conf;
+
+ conf = rcu_dereference(sdata->vif.link_conf[i]);
+ if (!conf)
+ continue;
+
+ chanctx_conf = rcu_dereference(conf->chanctx_conf);
+ if (!chanctx_conf)
+ continue;
+
+ if (mlo_sta && params->chan == chanctx_conf->def.chan &&
+ ether_addr_equal(sdata->vif.addr, mgmt->sa)) {
+ link_id = i;
+ break;
+ }
+
+ if (ether_addr_equal(conf->addr, mgmt->sa))
+ break;
+
+ chanctx_conf = NULL;
+ }
if (chanctx_conf) {
need_offchan = params->chan &&
(params->chan !=
chanctx_conf->def.chan);
- } else if (!params->chan) {
- ret = -EINVAL;
- rcu_read_unlock();
- goto out_unlock;
} else {
need_offchan = true;
}
@@ -876,7 +914,7 @@ int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
data = skb_put_data(skb, params->buf, params->len);
/* Update CSA counters */
- if (sdata->vif.csa_active &&
+ if (sdata->vif.bss_conf.csa_active &&
(sdata->vif.type == NL80211_IFTYPE_AP ||
sdata->vif.type == NL80211_IFTYPE_MESH_POINT ||
sdata->vif.type == NL80211_IFTYPE_ADHOC) &&
@@ -887,7 +925,7 @@ int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
rcu_read_lock();
if (sdata->vif.type == NL80211_IFTYPE_AP)
- beacon = rcu_dereference(sdata->u.ap.beacon);
+ beacon = rcu_dereference(sdata->deflink.u.ap.beacon);
else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
beacon = rcu_dereference(sdata->u.ibss.presp);
else if (ieee80211_vif_is_mesh(&sdata->vif))
@@ -924,7 +962,7 @@ int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
}
if (!need_offchan) {
- ieee80211_tx_skb(sdata, skb);
+ ieee80211_tx_skb_tid(sdata, skb, 7, link_id);
ret = 0;
goto out_unlock;
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.