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-rw-r--r--net/mac80211/mlme.c114
1 files changed, 81 insertions, 33 deletions
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 073105deb424..2022a26eb881 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -8,7 +8,7 @@
* Copyright 2007, Michael Wu <flamingice@sourmilk.net>
* Copyright 2013-2014 Intel Mobile Communications GmbH
* Copyright (C) 2015 - 2017 Intel Deutschland GmbH
- * Copyright (C) 2018 - 2023 Intel Corporation
+ * Copyright (C) 2018 - 2024 Intel Corporation
*/
#include <linux/delay.h>
@@ -2918,6 +2918,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
/* other links will be destroyed */
sdata->deflink.u.mgd.bss = NULL;
+ sdata->deflink.smps_mode = IEEE80211_SMPS_OFF;
netif_carrier_off(sdata->dev);
@@ -5045,9 +5046,6 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata,
if (!link)
return 0;
- /* will change later if needed */
- link->smps_mode = IEEE80211_SMPS_OFF;
-
/*
* If this fails (possibly due to channel context sharing
* on incompatible channels, e.g. 80+80 and 160 sharing the
@@ -7096,6 +7094,7 @@ void ieee80211_mgd_setup_link(struct ieee80211_link_data *link)
link->u.mgd.p2p_noa_index = -1;
link->u.mgd.conn_flags = 0;
link->conf->bssid = link->u.mgd.bssid;
+ link->smps_mode = IEEE80211_SMPS_OFF;
wiphy_work_init(&link->u.mgd.request_smps_work,
ieee80211_request_smps_mgd_work);
@@ -7309,6 +7308,75 @@ out_err:
return err;
}
+static bool ieee80211_mgd_csa_present(struct ieee80211_sub_if_data *sdata,
+ const struct cfg80211_bss_ies *ies,
+ u8 cur_channel, bool ignore_ecsa)
+{
+ const struct element *csa_elem, *ecsa_elem;
+ struct ieee80211_channel_sw_ie *csa = NULL;
+ struct ieee80211_ext_chansw_ie *ecsa = NULL;
+
+ if (!ies)
+ return false;
+
+ csa_elem = cfg80211_find_elem(WLAN_EID_CHANNEL_SWITCH,
+ ies->data, ies->len);
+ if (csa_elem && csa_elem->datalen == sizeof(*csa))
+ csa = (void *)csa_elem->data;
+
+ ecsa_elem = cfg80211_find_elem(WLAN_EID_EXT_CHANSWITCH_ANN,
+ ies->data, ies->len);
+ if (ecsa_elem && ecsa_elem->datalen == sizeof(*ecsa))
+ ecsa = (void *)ecsa_elem->data;
+
+ if (csa && csa->count == 0)
+ csa = NULL;
+ if (csa && !csa->mode && csa->new_ch_num == cur_channel)
+ csa = NULL;
+
+ if (ecsa && ecsa->count == 0)
+ ecsa = NULL;
+ if (ecsa && !ecsa->mode && ecsa->new_ch_num == cur_channel)
+ ecsa = NULL;
+
+ if (ignore_ecsa && ecsa) {
+ sdata_info(sdata,
+ "Ignoring ECSA in probe response - was considered stuck!\n");
+ return csa;
+ }
+
+ return csa || ecsa;
+}
+
+static bool ieee80211_mgd_csa_in_process(struct ieee80211_sub_if_data *sdata,
+ struct cfg80211_bss *bss)
+{
+ u8 cur_channel;
+ bool ret;
+
+ cur_channel = ieee80211_frequency_to_channel(bss->channel->center_freq);
+
+ rcu_read_lock();
+ if (ieee80211_mgd_csa_present(sdata,
+ rcu_dereference(bss->beacon_ies),
+ cur_channel, false)) {
+ ret = true;
+ goto out;
+ }
+
+ if (ieee80211_mgd_csa_present(sdata,
+ rcu_dereference(bss->proberesp_ies),
+ cur_channel, bss->proberesp_ecsa_stuck)) {
+ ret = true;
+ goto out;
+ }
+
+ ret = false;
+out:
+ rcu_read_unlock();
+ return ret;
+}
+
/* config hooks */
int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
struct cfg80211_auth_request *req)
@@ -7317,7 +7385,6 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct ieee80211_mgd_auth_data *auth_data;
struct ieee80211_link_data *link;
- const struct element *csa_elem, *ecsa_elem;
u16 auth_alg;
int err;
bool cont_auth;
@@ -7360,21 +7427,10 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
if (ifmgd->assoc_data)
return -EBUSY;
- rcu_read_lock();
- csa_elem = ieee80211_bss_get_elem(req->bss, WLAN_EID_CHANNEL_SWITCH);
- ecsa_elem = ieee80211_bss_get_elem(req->bss,
- WLAN_EID_EXT_CHANSWITCH_ANN);
- if ((csa_elem &&
- csa_elem->datalen == sizeof(struct ieee80211_channel_sw_ie) &&
- ((struct ieee80211_channel_sw_ie *)csa_elem->data)->count != 0) ||
- (ecsa_elem &&
- ecsa_elem->datalen == sizeof(struct ieee80211_ext_chansw_ie) &&
- ((struct ieee80211_ext_chansw_ie *)ecsa_elem->data)->count != 0)) {
- rcu_read_unlock();
+ if (ieee80211_mgd_csa_in_process(sdata, req->bss)) {
sdata_info(sdata, "AP is in CSA process, reject auth\n");
return -EINVAL;
}
- rcu_read_unlock();
auth_data = kzalloc(sizeof(*auth_data) + req->auth_data_len +
req->ie_len, GFP_KERNEL);
@@ -7684,7 +7740,7 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
struct ieee80211_local *local = sdata->local;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct ieee80211_mgd_assoc_data *assoc_data;
- const struct element *ssid_elem, *csa_elem, *ecsa_elem;
+ const struct element *ssid_elem;
struct ieee80211_vif_cfg *vif_cfg = &sdata->vif.cfg;
ieee80211_conn_flags_t conn_flags = 0;
struct ieee80211_link_data *link;
@@ -7707,23 +7763,15 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
cbss = req->link_id < 0 ? req->bss : req->links[req->link_id].bss;
- rcu_read_lock();
- ssid_elem = ieee80211_bss_get_elem(cbss, WLAN_EID_SSID);
- if (!ssid_elem || ssid_elem->datalen > sizeof(assoc_data->ssid)) {
- rcu_read_unlock();
+ if (ieee80211_mgd_csa_in_process(sdata, cbss)) {
+ sdata_info(sdata, "AP is in CSA process, reject assoc\n");
kfree(assoc_data);
return -EINVAL;
}
- csa_elem = ieee80211_bss_get_elem(cbss, WLAN_EID_CHANNEL_SWITCH);
- ecsa_elem = ieee80211_bss_get_elem(cbss, WLAN_EID_EXT_CHANSWITCH_ANN);
- if ((csa_elem &&
- csa_elem->datalen == sizeof(struct ieee80211_channel_sw_ie) &&
- ((struct ieee80211_channel_sw_ie *)csa_elem->data)->count != 0) ||
- (ecsa_elem &&
- ecsa_elem->datalen == sizeof(struct ieee80211_ext_chansw_ie) &&
- ((struct ieee80211_ext_chansw_ie *)ecsa_elem->data)->count != 0)) {
- sdata_info(sdata, "AP is in CSA process, reject assoc\n");
+ rcu_read_lock();
+ ssid_elem = ieee80211_bss_get_elem(cbss, WLAN_EID_SSID);
+ if (!ssid_elem || ssid_elem->datalen > sizeof(assoc_data->ssid)) {
rcu_read_unlock();
kfree(assoc_data);
return -EINVAL;
@@ -7998,8 +8046,7 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
rcu_read_lock();
beacon_ies = rcu_dereference(req->bss->beacon_ies);
-
- if (beacon_ies) {
+ if (!beacon_ies) {
/*
* Wait up to one beacon interval ...
* should this be more if we miss one?
@@ -8080,6 +8127,7 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
ieee80211_report_disconnect(sdata, frame_buf,
sizeof(frame_buf), true,
req->reason_code, false);
+ drv_mgd_complete_tx(sdata->local, sdata, &info);
return 0;
}
generated by cgit (git 2.34.1) at 2024-05-28 08:16:38 +0000