// SPDX-License-Identifier: GPL-2.0-only
/*
* mac80211 configuration hooks for cfg80211
*
* Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
* Copyright 2013-2015 Intel Mobile Communications GmbH
* Copyright (C) 2015-2017 Intel Deutschland GmbH
* Copyright (C) 2018-2025 Intel Corporation
*/
#include <linux/ieee80211.h>
#include <linux/nl80211.h>
#include <linux/rtnetlink.h>
#include <linux/slab.h>
#include <net/net_namespace.h>
#include <linux/rcupdate.h>
#include <linux/fips.h>
#include <linux/if_ether.h>
#include <net/cfg80211.h>
#include "ieee80211_i.h"
#include "driver-ops.h"
#include "rate.h"
#include "mesh.h"
#include "wme.h"
static struct ieee80211_link_data *
ieee80211_link_or_deflink(struct ieee80211_sub_if_data *sdata, int link_id,
bool require_valid)
{
struct ieee80211_link_data *link;
if (link_id < 0) {
/*
* For keys, if sdata is not an MLD, we might not use
* the return value at all (if it's not a pairwise key),
* so in that case (require_valid==false) don't error.
*/
if (require_valid && ieee80211_vif_is_mld(&sdata->vif))
return ERR_PTR(-EINVAL);
return &sdata->deflink;
}
link = sdata_dereference(sdata->link[link_id], sdata);
if (!link)
return ERR_PTR(-ENOLINK);
return link;
}
static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata,
struct vif_params *params)
{
bool mu_mimo_groups = false ;
bool mu_mimo_follow = false ;
if (params->vht_mumimo_groups) {
u64 membership;
BUILD_BUG_ON(sizeof (membership) != WLAN_MEMBERSHIP_LEN);
memcpy(sdata->vif.bss_conf.mu_group.membership,
params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN);
memcpy(sdata->vif.bss_conf.mu_group.position,
params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN,
WLAN_USER_POSITION_LEN);
ieee80211_link_info_change_notify(sdata, &sdata->deflink,
BSS_CHANGED_MU_GROUPS);
/* don't care about endianness - just check for 0 */
memcpy(&membership, params->vht_mumimo_groups,
WLAN_MEMBERSHIP_LEN);
mu_mimo_groups = membership != 0;
}
if (params->vht_mumimo_follow_addr) {
mu_mimo_follow =
is_valid_ether_addr(params->vht_mumimo_follow_addr);
ether_addr_copy(sdata->u.mntr.mu_follow_addr,
params->vht_mumimo_follow_addr);
}
sdata->vif.bss_conf.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow;
}
static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata,
struct vif_params *params)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_sub_if_data *monitor_sdata;
/* check flags first */
if (params->flags && ieee80211_sdata_running(sdata)) {
u32 mask = MONITOR_FLAG_ACTIVE;
/*
* Prohibit MONITOR_FLAG_ACTIVE to be changed
* while the interface is up.
* Else we would need to add a lot of cruft
* to update everything:
* monitor and all fif_* counters
* reconfigure hardware
*/
if ((params->flags & mask) != (sdata->u.mntr.flags & mask))
return -EBUSY;
}
/* also validate MU-MIMO change */
if (ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR))
monitor_sdata = sdata;
else
monitor_sdata = wiphy_dereference(local->hw.wiphy,
local->monitor_sdata);
if (!monitor_sdata &&
(params->vht_mumimo_groups || params->vht_mumimo_follow_addr))
return -EOPNOTSUPP;
/* apply all changes now - no failures allowed */
if (monitor_sdata &&
(ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF) ||
ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)))
ieee80211_set_mu_mimo_follow(monitor_sdata, params);
if (params->flags) {
if (ieee80211_sdata_running(sdata)) {
ieee80211_adjust_monitor_flags(sdata, -1);
sdata->u.mntr.flags = params->flags;
ieee80211_adjust_monitor_flags(sdata, 1);
ieee80211_configure_filter(local);
} else {
/*
* Because the interface is down, ieee80211_do_stop
* and ieee80211_do_open take care of "everything"
* mentioned in the comment above.
*/
sdata->u.mntr.flags = params->flags;
}
}
return 0;
}
static int ieee80211_set_ap_mbssid_options(struct ieee80211_sub_if_data *sdata,
struct cfg80211_mbssid_config *params,
struct ieee80211_bss_conf *link_conf)
{
struct ieee80211_sub_if_data *tx_sdata;
struct ieee80211_bss_conf *old;
link_conf->bssid_index = 0;
link_conf->nontransmitted = false ;
link_conf->ema_ap = false ;
link_conf->bssid_indicator = 0;
if (sdata->vif.type != NL80211_IFTYPE_AP || !params->tx_wdev)
return -EINVAL;
old = sdata_dereference(link_conf->tx_bss_conf, sdata);
if (old)
return -EALREADY;
tx_sdata = IEEE80211_WDEV_TO_SUB_IF(params->tx_wdev);
if (!tx_sdata)
return -EINVAL;
if (tx_sdata == sdata) {
rcu_assign_pointer(link_conf->tx_bss_conf, link_conf);
} else {
struct ieee80211_bss_conf *tx_bss_conf;
tx_bss_conf = sdata_dereference(tx_sdata->vif.link_conf[params->tx_link_id],
sdata);
if (rcu_access_pointer(tx_bss_conf->tx_bss_conf) != tx_bss_conf)
return -EINVAL;
rcu_assign_pointer(link_conf->tx_bss_conf, tx_bss_conf);
link_conf->nontransmitted = true ;
link_conf->bssid_index = params->index;
link_conf->bssid_indicator = tx_bss_conf->bssid_indicator;
}
if (params->ema)
link_conf->ema_ap = true ;
return 0;
}
static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
const char *name,
unsigned char name_assign_type,
enum nl80211_iftype type,
struct vif_params *params)
{
struct ieee80211_local *local = wiphy_priv(wiphy);
struct wireless_dev *wdev;
struct ieee80211_sub_if_data *sdata;
int err;
err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params);
if (err)
return ERR_PTR(err);
sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
if (type == NL80211_IFTYPE_MONITOR) {
err = ieee80211_set_mon_options(sdata, params);
if (err) {
ieee80211_if_remove(sdata);
return NULL;
}
}
/* Let the driver know that an interface is going to be added.
* Indicate so only for interface types that will be added to the
* driver.
*/
switch (type) {
case NL80211_IFTYPE_AP_VLAN:
break ;
case NL80211_IFTYPE_MONITOR:
if (!ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF) ||
!(params->flags & MONITOR_FLAG_ACTIVE))
break ;
fallthrough;
default :
drv_prep_add_interface(local,
ieee80211_vif_type_p2p(&sdata->vif));
break ;
}
return wdev;
}
static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
{
ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
return 0;
}
static int ieee80211_change_iface(struct wiphy *wiphy,
struct net_device *dev,
enum nl80211_iftype type,
struct vif_params *params)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_local *local = sdata->local;
struct sta_info *sta;
int ret;
lockdep_assert_wiphy(local->hw.wiphy);
ret = ieee80211_if_change_type(sdata, type);
if (ret)
return ret;
if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) {
RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
ieee80211_check_fast_rx_iface(sdata);
} else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) {
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
if (params->use_4addr == ifmgd->use_4addr)
return 0;
/* FIXME: no support for 4-addr MLO yet */
if (ieee80211_vif_is_mld(&sdata->vif))
return -EOPNOTSUPP;
sdata->u.mgd.use_4addr = params->use_4addr;
if (!ifmgd->associated)
return 0;
sta = sta_info_get(sdata, sdata->deflink.u.mgd.bssid);
if (sta)
drv_sta_set_4addr(local, sdata, &sta->sta,
params->use_4addr);
if (params->use_4addr)
ieee80211_send_4addr_nullfunc(local, sdata);
}
if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
ret = ieee80211_set_mon_options(sdata, params);
if (ret)
return ret;
}
return 0;
}
static int ieee80211_start_p2p_device(struct wiphy *wiphy,
struct wireless_dev *wdev)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
int ret;
lockdep_assert_wiphy(sdata->local->hw.wiphy);
ret = ieee80211_check_combinations(sdata, NULL, 0, 0, -1);
if (ret < 0)
return ret;
return ieee80211_do_open(wdev, true );
}
static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
struct wireless_dev *wdev)
{
ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
}
static int ieee80211_start_nan(struct wiphy *wiphy,
struct wireless_dev *wdev,
struct cfg80211_nan_conf *conf)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
int ret;
lockdep_assert_wiphy(sdata->local->hw.wiphy);
if (sdata->u.nan.started)
return -EALREADY;
ret = ieee80211_check_combinations(sdata, NULL, 0, 0, -1);
if (ret < 0)
return ret;
ret = ieee80211_do_open(wdev, true );
if (ret)
return ret;
ret = drv_start_nan(sdata->local, sdata, conf);
if (ret) {
ieee80211_sdata_stop(sdata);
return ret;
}
sdata->u.nan.started = true ;
ieee80211_recalc_idle(sdata->local);
sdata->u.nan.conf.master_pref = conf->master_pref;
sdata->u.nan.conf.bands = conf->bands;
return 0;
}
static void ieee80211_stop_nan(struct wiphy *wiphy,
struct wireless_dev *wdev)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
if (!sdata->u.nan.started)
return ;
drv_stop_nan(sdata->local, sdata);
sdata->u.nan.started = false ;
ieee80211_sdata_stop(sdata);
ieee80211_recalc_idle(sdata->local);
}
static int ieee80211_nan_change_conf(struct wiphy *wiphy,
struct wireless_dev *wdev,
struct cfg80211_nan_conf *conf,
u32 changes)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
struct cfg80211_nan_conf new_conf;
int ret = 0;
if (sdata->vif.type != NL80211_IFTYPE_NAN)
return -EOPNOTSUPP;
if (!ieee80211_sdata_running(sdata))
return -ENETDOWN;
new_conf = sdata->u.nan.conf;
if (changes & CFG80211_NAN_CONF_CHANGED_PREF)
new_conf.master_pref = conf->master_pref;
if (changes & CFG80211_NAN_CONF_CHANGED_BANDS)
new_conf.bands = conf->bands;
ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes);
if (!ret)
sdata->u.nan.conf = new_conf;
return ret;
}
static int ieee80211_add_nan_func(struct wiphy *wiphy,
struct wireless_dev *wdev,
struct cfg80211_nan_func *nan_func)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
int ret;
if (sdata->vif.type != NL80211_IFTYPE_NAN)
return -EOPNOTSUPP;
if (!ieee80211_sdata_running(sdata))
return -ENETDOWN;
spin_lock_bh(&sdata->u.nan.func_lock);
ret = idr_alloc(&sdata->u.nan.function_inst_ids,
nan_func, 1, sdata->local->hw.max_nan_de_entries + 1,
GFP_ATOMIC);
spin_unlock_bh(&sdata->u.nan.func_lock);
if (ret < 0)
return ret;
nan_func->instance_id = ret;
WARN_ON(nan_func->instance_id == 0);
ret = drv_add_nan_func(sdata->local, sdata, nan_func);
if (ret) {
spin_lock_bh(&sdata->u.nan.func_lock);
idr_remove(&sdata->u.nan.function_inst_ids,
nan_func->instance_id);
spin_unlock_bh(&sdata->u.nan.func_lock);
}
return ret;
}
static struct cfg80211_nan_func *
ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata,
u64 cookie)
{
struct cfg80211_nan_func *func;
int id;
lockdep_assert_held(&sdata->u.nan.func_lock);
idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) {
if (func->cookie == cookie)
return func;
}
return NULL;
}
static void ieee80211_del_nan_func(struct wiphy *wiphy,
struct wireless_dev *wdev, u64 cookie)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
struct cfg80211_nan_func *func;
u8 instance_id = 0;
if (sdata->vif.type != NL80211_IFTYPE_NAN ||
!ieee80211_sdata_running(sdata))
return ;
spin_lock_bh(&sdata->u.nan.func_lock);
func = ieee80211_find_nan_func_by_cookie(sdata, cookie);
if (func)
instance_id = func->instance_id;
spin_unlock_bh(&sdata->u.nan.func_lock);
if (instance_id)
drv_del_nan_func(sdata->local, sdata, instance_id);
}
static int ieee80211_set_noack_map(struct wiphy *wiphy,
struct net_device *dev,
u16 noack_map)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
sdata->noack_map = noack_map;
ieee80211_check_fast_xmit_iface(sdata);
return 0;
}
static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata,
const u8 *mac_addr, u8 key_idx)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_key *key;
struct sta_info *sta;
int ret = -EINVAL;
if (!wiphy_ext_feature_isset(local->hw.wiphy,
NL80211_EXT_FEATURE_EXT_KEY_ID))
return -EINVAL;
sta = sta_info_get_bss(sdata, mac_addr);
if (!sta)
return -EINVAL;
if (sta->ptk_idx == key_idx)
return 0;
key = wiphy_dereference(local->hw.wiphy, sta->ptk[key_idx]);
if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX)
ret = ieee80211_set_tx_key(key);
return ret;
}
static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
int link_id, u8 key_idx, bool pairwise,
const u8 *mac_addr, struct key_params *params)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_link_data *link =
ieee80211_link_or_deflink(sdata, link_id, false );
struct ieee80211_local *local = sdata->local;
struct sta_info *sta = NULL;
struct ieee80211_key *key;
int err;
lockdep_assert_wiphy(local->hw.wiphy);
if (!ieee80211_sdata_running(sdata))
return -ENETDOWN;
if (IS_ERR(link))
return PTR_ERR(link);
if (WARN_ON(pairwise && link_id >= 0))
return -EINVAL;
if (pairwise && params->mode == NL80211_KEY_SET_TX)
return ieee80211_set_tx(sdata, mac_addr, key_idx);
/* reject WEP and TKIP keys if WEP failed to initialize */
switch (params->cipher) {
case WLAN_CIPHER_SUITE_WEP40:
case WLAN_CIPHER_SUITE_TKIP:
case WLAN_CIPHER_SUITE_WEP104:
if (link_id >= 0)
return -EINVAL;
if (WARN_ON_ONCE(fips_enabled))
return -EINVAL;
break ;
default :
break ;
}
key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
params->key, params->seq_len, params->seq);
if (IS_ERR(key))
return PTR_ERR(key);
if (pairwise) {
key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
key->conf.link_id = -1;
} else {
key->conf.link_id = link->link_id;
}
if (params->mode == NL80211_KEY_NO_TX)
key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX;
if (mac_addr) {
sta = sta_info_get_bss(sdata, mac_addr);
/*
* The ASSOC test makes sure the driver is ready to
* receive the key. When wpa_supplicant has roamed
* using FT, it attempts to set the key before
* association has completed, this rejects that attempt
* so it will set the key again after association.
*
* TODO: accept the key if we have a station entry and
* add it to the device after the station.
*/
if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
ieee80211_key_free_unused(key);
return -ENOENT;
}
}
switch (sdata->vif.type) {
case NL80211_IFTYPE_STATION:
if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
break ;
case NL80211_IFTYPE_AP:
case NL80211_IFTYPE_AP_VLAN:
/* Keys without a station are used for TX only */
if (sta && test_sta_flag(sta, WLAN_STA_MFP))
key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
break ;
case NL80211_IFTYPE_ADHOC:
/* no MFP (yet) */
break ;
case NL80211_IFTYPE_MESH_POINT:
#ifdef CONFIG_MAC80211_MESH
if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
break ;
#endif
case NL80211_IFTYPE_WDS:
case NL80211_IFTYPE_MONITOR:
case NL80211_IFTYPE_P2P_DEVICE:
case NL80211_IFTYPE_NAN:
case NL80211_IFTYPE_UNSPECIFIED:
case NUM_NL80211_IFTYPES:
case NL80211_IFTYPE_P2P_CLIENT:
case NL80211_IFTYPE_P2P_GO:
case NL80211_IFTYPE_OCB:
/* shouldn't happen */
WARN_ON_ONCE(1);
break ;
}
err = ieee80211_key_link(key, link, sta);
/* KRACK protection, shouldn't happen but just silently accept key */
if (err == -EALREADY)
err = 0;
return err;
}
static struct ieee80211_key *
ieee80211_lookup_key(struct ieee80211_sub_if_data *sdata, int link_id,
u8 key_idx, bool pairwise, const u8 *mac_addr)
{
struct ieee80211_local *local __maybe_unused = sdata->local;
struct ieee80211_link_data *link = &sdata->deflink;
struct ieee80211_key *key;
if (link_id >= 0) {
link = sdata_dereference(sdata->link[link_id], sdata);
if (!link)
return NULL;
}
if (mac_addr) {
struct sta_info *sta;
struct link_sta_info *link_sta;
sta = sta_info_get_bss(sdata, mac_addr);
if (!sta)
return NULL;
if (link_id >= 0) {
link_sta = rcu_dereference_check(sta->link[link_id],
lockdep_is_held(&local->hw.wiphy->mtx));
if (!link_sta)
return NULL;
} else {
link_sta = &sta->deflink;
}
if (pairwise && key_idx < NUM_DEFAULT_KEYS)
return wiphy_dereference(local->hw.wiphy,
sta->ptk[key_idx]);
if (!pairwise &&
key_idx < NUM_DEFAULT_KEYS +
NUM_DEFAULT_MGMT_KEYS +
NUM_DEFAULT_BEACON_KEYS)
return wiphy_dereference(local->hw.wiphy,
link_sta->gtk[key_idx]);
return NULL;
}
if (pairwise && key_idx < NUM_DEFAULT_KEYS)
return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]);
key = wiphy_dereference(local->hw.wiphy, link->gtk[key_idx]);
if (key)
return key;
/* or maybe it was a WEP key */
if (key_idx < NUM_DEFAULT_KEYS)
return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]);
return NULL;
}
static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
int link_id, u8 key_idx, bool pairwise,
const u8 *mac_addr)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_local *local = sdata->local;
struct ieee80211_key *key;
lockdep_assert_wiphy(local->hw.wiphy);
key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr);
if (!key)
return -ENOENT;
ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION);
return 0;
}
static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
int link_id, u8 key_idx, bool pairwise,
const u8 *mac_addr, void *cookie,
void (*callback)(void *cookie,
struct key_params *params))
{
struct ieee80211_sub_if_data *sdata;
u8 seq[6] = {0};
struct key_params params;
struct ieee80211_key *key;
u64 pn64;
u32 iv32;
u16 iv16;
int err = -ENOENT;
struct ieee80211_key_seq kseq = {};
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
rcu_read_lock();
key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr);
if (!key)
goto out;
memset(¶ms, 0, sizeof (params));
params.cipher = key->conf.cipher;
switch (key->conf.cipher) {
case WLAN_CIPHER_SUITE_TKIP:
pn64 = atomic64_read(&key->conf.tx_pn);
iv32 = TKIP_PN_TO_IV32(pn64);
iv16 = TKIP_PN_TO_IV16(pn64);
if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
!(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
drv_get_key_seq(sdata->local, key, &kseq);
iv32 = kseq.tkip.iv32;
iv16 = kseq.tkip.iv16;
}
seq[0] = iv16 & 0xff;
seq[1] = (iv16 >> 8) & 0xff;
seq[2] = iv32 & 0xff;
seq[3] = (iv32 >> 8) & 0xff;
seq[4] = (iv32 >> 16) & 0xff;
seq[5] = (iv32 >> 24) & 0xff;
params.seq = seq;
params.seq_len = 6;
break ;
case WLAN_CIPHER_SUITE_CCMP:
case WLAN_CIPHER_SUITE_CCMP_256:
case WLAN_CIPHER_SUITE_AES_CMAC:
case WLAN_CIPHER_SUITE_BIP_CMAC_256:
BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
offsetof(typeof(kseq), aes_cmac));
fallthrough;
case WLAN_CIPHER_SUITE_BIP_GMAC_128:
case WLAN_CIPHER_SUITE_BIP_GMAC_256:
BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
offsetof(typeof(kseq), aes_gmac));
fallthrough;
case WLAN_CIPHER_SUITE_GCMP:
case WLAN_CIPHER_SUITE_GCMP_256:
BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
offsetof(typeof(kseq), gcmp));
if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
!(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
drv_get_key_seq(sdata->local, key, &kseq);
memcpy(seq, kseq.ccmp.pn, 6);
} else {
pn64 = atomic64_read(&key->conf.tx_pn);
seq[0] = pn64;
seq[1] = pn64 >> 8;
seq[2] = pn64 >> 16;
seq[3] = pn64 >> 24;
seq[4] = pn64 >> 32;
seq[5] = pn64 >> 40;
}
params.seq = seq;
params.seq_len = 6;
break ;
default :
if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
break ;
if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))
break ;
drv_get_key_seq(sdata->local, key, &kseq);
params.seq = kseq.hw.seq;
params.seq_len = kseq.hw.seq_len;
break ;
}
callback(cookie, ¶ms);
err = 0;
out:
rcu_read_unlock();
return err;
}
static int ieee80211_config_default_key(struct wiphy *wiphy,
struct net_device *dev,
int link_id, u8 key_idx, bool uni,
bool multi)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_link_data *link =
ieee80211_link_or_deflink(sdata, link_id, false );
if (IS_ERR(link))
return PTR_ERR(link);
ieee80211_set_default_key(link, key_idx, uni, multi);
return 0;
}
static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
struct net_device *dev,
int link_id, u8 key_idx)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_link_data *link =
ieee80211_link_or_deflink(sdata, link_id, true );
if (IS_ERR(link))
return PTR_ERR(link);
ieee80211_set_default_mgmt_key(link, key_idx);
return 0;
}
static int ieee80211_config_default_beacon_key(struct wiphy *wiphy,
struct net_device *dev,
int link_id, u8 key_idx)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_link_data *link =
ieee80211_link_or_deflink(sdata, link_id, true );
if (IS_ERR(link))
return PTR_ERR(link);
ieee80211_set_default_beacon_key(link, key_idx);
return 0;
}
void sta_set_rate_info_tx(struct sta_info *sta,
const struct ieee80211_tx_rate *rate,
struct rate_info *rinfo)
{
rinfo->flags = 0;
if (rate->flags & IEEE80211_TX_RC_MCS) {
rinfo->flags |= RATE_INFO_FLAGS_MCS;
rinfo->mcs = rate->idx;
} else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
rinfo->nss = ieee80211_rate_get_vht_nss(rate);
} else {
struct ieee80211_supported_band *sband;
sband = ieee80211_get_sband(sta->sdata);
WARN_ON_ONCE(sband && !sband->bitrates);
if (sband && sband->bitrates)
rinfo->legacy = sband->bitrates[rate->idx].bitrate;
}
if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
rinfo->bw = RATE_INFO_BW_40;
else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
rinfo->bw = RATE_INFO_BW_80;
else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
rinfo->bw = RATE_INFO_BW_160;
else
rinfo->bw = RATE_INFO_BW_20;
if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
}
static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
int idx, u8 *mac, struct station_info *sinfo)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_local *local = sdata->local;
struct sta_info *sta;
int ret = -ENOENT;
lockdep_assert_wiphy(local->hw.wiphy);
sta = sta_info_get_by_idx(sdata, idx);
if (sta) {
ret = 0;
memcpy(mac, sta->sta.addr, ETH_ALEN);
sta_set_sinfo(sta, sinfo, true );
/* Add accumulated removed link data to sinfo data for
* consistency for MLO
*/
if (sinfo->valid_links)
sta_set_accumulated_removed_links_sinfo(sta, sinfo);
}
return ret;
}
static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
int idx, struct survey_info *survey)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
return drv_get_survey(local, idx, survey);
}
static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
const u8 *mac, struct station_info *sinfo)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_local *local = sdata->local;
struct sta_info *sta;
int ret = -ENOENT;
lockdep_assert_wiphy(local->hw.wiphy);
sta = sta_info_get_bss(sdata, mac);
if (sta) {
ret = 0;
sta_set_sinfo(sta, sinfo, true );
/* Add accumulated removed link data to sinfo data for
* consistency for MLO
*/
if (sinfo->valid_links)
sta_set_accumulated_removed_links_sinfo(sta, sinfo);
}
return ret;
}
static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
struct net_device *dev,
struct cfg80211_chan_def *chandef)
{
struct ieee80211_local *local = wiphy_priv(wiphy);
struct ieee80211_sub_if_data *sdata;
struct ieee80211_chan_req chanreq = { .oper = *chandef };
int ret;
lockdep_assert_wiphy(local->hw.wiphy);
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
if (!ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) {
if (cfg80211_chandef_identical(&local->monitor_chanreq.oper,
&chanreq.oper))
return 0;
sdata = wiphy_dereference(wiphy, local->monitor_sdata);
if (!sdata)
goto done;
}
if (rcu_access_pointer(sdata->deflink.conf->chanctx_conf) &&
cfg80211_chandef_identical(&sdata->vif.bss_conf.chanreq.oper,
&chanreq.oper))
return 0;
ieee80211_link_release_channel(&sdata->deflink);
ret = ieee80211_link_use_channel(&sdata->deflink, &chanreq,
IEEE80211_CHANCTX_SHARED);
if (ret)
return ret;
done:
local->monitor_chanreq = chanreq;
return 0;
}
static int
ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
const u8 *resp, size_t resp_len,
const struct ieee80211_csa_settings *csa,
const struct ieee80211_color_change_settings *cca,
struct ieee80211_link_data *link)
{
struct probe_resp *new , *old;
if (!resp || !resp_len)
return 1;
old = sdata_dereference(link->u.ap.probe_resp, sdata);
new = kzalloc(sizeof (struct probe_resp) + resp_len, GFP_KERNEL);
if (!new )
return -ENOMEM;
new->len = resp_len;
memcpy(new->data, resp, resp_len);
if (csa)
memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp,
csa->n_counter_offsets_presp *
sizeof (new->cntdwn_counter_offsets[0]));
else if (cca)
new->cntdwn_counter_offsets[0] = cca->counter_offset_presp;
rcu_assign_pointer(link->u.ap.probe_resp, new );
if (old)
kfree_rcu(old, rcu_head);
return 0;
}
static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata,
struct cfg80211_fils_discovery *params,
struct ieee80211_link_data *link,
struct ieee80211_bss_conf *link_conf,
u64 *changed)
{
struct fils_discovery_data *new , *old = NULL;
struct ieee80211_fils_discovery *fd;
if (!params->update)
return 0;
fd = &link_conf->fils_discovery;
fd->min_interval = params->min_interval;
fd->max_interval = params->max_interval;
old = sdata_dereference(link->u.ap.fils_discovery, sdata);
if (old)
kfree_rcu(old, rcu_head);
if (params->tmpl && params->tmpl_len) {
new = kzalloc(sizeof (*new ) + params->tmpl_len, GFP_KERNEL);
if (!new )
return -ENOMEM;
new->len = params->tmpl_len;
memcpy(new->data, params->tmpl, params->tmpl_len);
rcu_assign_pointer(link->u.ap.fils_discovery, new );
} else {
RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL);
}
*changed |= BSS_CHANGED_FILS_DISCOVERY;
return 0;
}
static int
ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata,
struct cfg80211_unsol_bcast_probe_resp *params,
struct ieee80211_link_data *link,
struct ieee80211_bss_conf *link_conf,
u64 *changed)
{
struct unsol_bcast_probe_resp_data *new , *old = NULL;
if (!params->update)
return 0;
link_conf->unsol_bcast_probe_resp_interval = params->interval;
old = sdata_dereference(link->u.ap.unsol_bcast_probe_resp, sdata);
if (old)
kfree_rcu(old, rcu_head);
if (params->tmpl && params->tmpl_len) {
new = kzalloc(sizeof (*new ) + params->tmpl_len, GFP_KERNEL);
if (!new )
return -ENOMEM;
new->len = params->tmpl_len;
memcpy(new->data, params->tmpl, params->tmpl_len);
rcu_assign_pointer(link->u.ap.unsol_bcast_probe_resp, new );
} else {
RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL);
}
*changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP;
return 0;
}
static int
ieee80211_set_s1g_short_beacon(struct ieee80211_sub_if_data *sdata,
struct ieee80211_link_data *link,
struct cfg80211_s1g_short_beacon *params)
{
struct s1g_short_beacon_data *new ;
struct s1g_short_beacon_data *old =
sdata_dereference(link->u.ap.s1g_short_beacon, sdata);
size_t new_len =
sizeof (*new ) + params->short_head_len + params->short_tail_len;
if (!params->update)
return 0;
if (!params->short_head)
return -EINVAL;
new = kzalloc(new_len, GFP_KERNEL);
if (!new )
return -ENOMEM;
/* Memory layout: | struct | head | tail | */
new->short_head = (u8 *)new + sizeof (*new );
new->short_head_len = params->short_head_len;
memcpy(new->short_head, params->short_head, params->short_head_len);
if (params->short_tail) {
new->short_tail = new->short_head + params->short_head_len;
new->short_tail_len = params->short_tail_len;
memcpy(new->short_tail, params->short_tail,
params->short_tail_len);
}
rcu_assign_pointer(link->u.ap.s1g_short_beacon, new );
if (old)
kfree_rcu(old, rcu_head);
return 0;
}
static int ieee80211_set_ftm_responder_params(
struct ieee80211_sub_if_data *sdata,
const u8 *lci, size_t lci_len,
const u8 *civicloc, size_t civicloc_len,
struct ieee80211_bss_conf *link_conf)
{
struct ieee80211_ftm_responder_params *new , *old;
u8 *pos;
int len;
if (!lci_len && !civicloc_len)
return 0;
old = link_conf->ftmr_params;
len = lci_len + civicloc_len;
new = kzalloc(sizeof (*new ) + len, GFP_KERNEL);
if (!new )
return -ENOMEM;
pos = (u8 *)(new + 1);
if (lci_len) {
new->lci_len = lci_len;
new->lci = pos;
memcpy(pos, lci, lci_len);
pos += lci_len;
}
if (civicloc_len) {
new->civicloc_len = civicloc_len;
new->civicloc = pos;
memcpy(pos, civicloc, civicloc_len);
pos += civicloc_len;
}
link_conf->ftmr_params = new ;
kfree(old);
return 0;
}
static int
ieee80211_copy_mbssid_beacon(u8 *pos, struct cfg80211_mbssid_elems *dst,
struct cfg80211_mbssid_elems *src)
{
int i, offset = 0;
dst->cnt = src->cnt;
for (i = 0; i < src->cnt; i++) {
memcpy(pos + offset, src->elem[i].data, src->elem[i].len);
dst->elem[i].len = src->elem[i].len;
dst->elem[i].data = pos + offset;
offset += dst->elem[i].len;
}
return offset;
}
static int
ieee80211_copy_rnr_beacon(u8 *pos, struct cfg80211_rnr_elems *dst,
struct cfg80211_rnr_elems *src)
{
int i, offset = 0;
dst->cnt = src->cnt;
for (i = 0; i < src->cnt; i++) {
memcpy(pos + offset, src->elem[i].data, src->elem[i].len);
dst->elem[i].len = src->elem[i].len;
dst->elem[i].data = pos + offset;
offset += dst->elem[i].len;
}
return offset;
}
static int
ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
struct ieee80211_link_data *link,
struct cfg80211_beacon_data *params,
const struct ieee80211_csa_settings *csa,
const struct ieee80211_color_change_settings *cca,
u64 *changed)
{
struct cfg80211_mbssid_elems *mbssid = NULL;
struct cfg80211_rnr_elems *rnr = NULL;
struct beacon_data *new , *old;
int new_head_len, new_tail_len;
int size, err;
u64 _changed = BSS_CHANGED_BEACON;
struct ieee80211_bss_conf *link_conf = link->conf;
old = sdata_dereference(link->u.ap.beacon, sdata);
/* Need to have a beacon head if we don't have one yet */
if (!params->head && !old)
return -EINVAL;
/* new or old head? */
if (params->head)
new_head_len = params->head_len;
else
new_head_len = old->head_len;
/* new or old tail? */
if (params->tail || !old)
/* params->tail_len will be zero for !params->tail */
new_tail_len = params->tail_len;
else
new_tail_len = old->tail_len;
size = sizeof (*new ) + new_head_len + new_tail_len;
/* new or old multiple BSSID elements? */
if (params->mbssid_ies) {
mbssid = params->mbssid_ies;
size += struct_size(new->mbssid_ies, elem, mbssid->cnt);
if (params->rnr_ies) {
rnr = params->rnr_ies;
size += struct_size(new->rnr_ies, elem, rnr->cnt);
}
size += ieee80211_get_mbssid_beacon_len(mbssid, rnr,
mbssid->cnt);
} else if (old && old->mbssid_ies) {
mbssid = old->mbssid_ies;
size += struct_size(new->mbssid_ies, elem, mbssid->cnt);
if (old && old->rnr_ies) {
rnr = old->rnr_ies;
size += struct_size(new->rnr_ies, elem, rnr->cnt);
}
size += ieee80211_get_mbssid_beacon_len(mbssid, rnr,
mbssid->cnt);
}
new = kzalloc(size, GFP_KERNEL);
if (!new )
return -ENOMEM;
/* start filling the new info now */
/*
* pointers go into the block we allocated,
* memory is | beacon_data | head | tail | mbssid_ies | rnr_ies
*/
new->head = ((u8 *) new ) + sizeof (*new );
new->tail = new->head + new_head_len;
new->head_len = new_head_len;
new->tail_len = new_tail_len;
/* copy in optional mbssid_ies */
if (mbssid) {
u8 *pos = new->tail + new->tail_len;
new->mbssid_ies = (void *)pos;
pos += struct_size(new->mbssid_ies, elem, mbssid->cnt);
pos += ieee80211_copy_mbssid_beacon(pos, new->mbssid_ies,
mbssid);
if (rnr) {
new->rnr_ies = (void *)pos;
pos += struct_size(new->rnr_ies, elem, rnr->cnt);
ieee80211_copy_rnr_beacon(pos, new->rnr_ies, rnr);
}
/* update bssid_indicator */
if (new->mbssid_ies->cnt && new->mbssid_ies->elem[0].len > 2)
link_conf->bssid_indicator =
*(new->mbssid_ies->elem[0].data + 2);
else
link_conf->bssid_indicator = 0;
}
if (csa) {
new->cntdwn_current_counter = csa->count;
memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon,
csa->n_counter_offsets_beacon *
sizeof (new->cntdwn_counter_offsets[0]));
} else if (cca) {
new->cntdwn_current_counter = cca->count;
new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon;
}
/* copy in head */
if (params->head)
memcpy(new->head, params->head, new_head_len);
else
memcpy(new->head, old->head, new_head_len);
/* copy in optional tail */
if (params->tail)
memcpy(new->tail, params->tail, new_tail_len);
else
if (old)
memcpy(new->tail, old->tail, new_tail_len);
err = ieee80211_set_probe_resp(sdata, params->probe_resp,
params->probe_resp_len, csa, cca, link);
if (err < 0) {
kfree(new );
return err;
}
if (err == 0)
_changed |= BSS_CHANGED_AP_PROBE_RESP;
if (params->ftm_responder != -1) {
link_conf->ftm_responder = params->ftm_responder;
err = ieee80211_set_ftm_responder_params(sdata,
params->lci,
params->lci_len,
params->civicloc,
params->civicloc_len,
link_conf);
if (err < 0) {
kfree(new );
return err;
}
_changed |= BSS_CHANGED_FTM_RESPONDER;
}
rcu_assign_pointer(link->u.ap.beacon, new );
sdata->u.ap.active = true ;
if (old)
kfree_rcu(old, rcu_head);
*changed |= _changed;
return 0;
}
static u8 ieee80211_num_beaconing_links(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_link_data *link;
u8 link_id, num = 0;
if (sdata->vif.type != NL80211_IFTYPE_AP &&
sdata->vif.type != NL80211_IFTYPE_P2P_GO)
return num;
/* non-MLO mode of operation also uses link_id 0 in sdata so it is
* safe to directly proceed with the below loop
*/
for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) {
link = sdata_dereference(sdata->link[link_id], sdata);
if (!link)
continue ;
if (sdata_dereference(link->u.ap.beacon, sdata))
num++;
}
return num;
}
static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_ap_settings *params)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_local *local = sdata->local;
struct beacon_data *old;
struct ieee80211_sub_if_data *vlan;
u64 changed = BSS_CHANGED_BEACON_INT |
BSS_CHANGED_BEACON_ENABLED |
BSS_CHANGED_BEACON |
BSS_CHANGED_P2P_PS |
BSS_CHANGED_TXPOWER |
BSS_CHANGED_TWT;
int i, err;
int prev_beacon_int;
unsigned int link_id = params->beacon.link_id;
struct ieee80211_link_data *link;
struct ieee80211_bss_conf *link_conf;
struct ieee80211_chan_req chanreq = { .oper = params->chandef };
u64 tsf;
lockdep_assert_wiphy(local->hw.wiphy);
link = sdata_dereference(sdata->link[link_id], sdata);
if (!link)
return -ENOLINK;
link_conf = link->conf;
old = sdata_dereference(link->u.ap.beacon, sdata);
if (old)
return -EALREADY;
link->smps_mode = IEEE80211_SMPS_OFF;
link->needed_rx_chains = sdata->local->rx_chains;
prev_beacon_int = link_conf->beacon_int;
link_conf->beacon_int = params->beacon_interval;
if (params->ht_cap)
link_conf->ht_ldpc =
params->ht_cap->cap_info &
cpu_to_le16(IEEE80211_HT_CAP_LDPC_CODING);
if (params->vht_cap) {
link_conf->vht_ldpc =
params->vht_cap->vht_cap_info &
cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC);
link_conf->vht_su_beamformer =
params->vht_cap->vht_cap_info &
cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE);
link_conf->vht_su_beamformee =
params->vht_cap->vht_cap_info &
cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE);
link_conf->vht_mu_beamformer =
params->vht_cap->vht_cap_info &
cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE);
link_conf->vht_mu_beamformee =
params->vht_cap->vht_cap_info &
cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE);
}
if (params->he_cap && params->he_oper) {
link_conf->he_support = true ;
link_conf->htc_trig_based_pkt_ext =
le32_get_bits(params->he_oper->he_oper_params,
IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK);
link_conf->frame_time_rts_th =
le32_get_bits(params->he_oper->he_oper_params,
IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK);
changed |= BSS_CHANGED_HE_OBSS_PD;
if (params->beacon.he_bss_color.enabled)
changed |= BSS_CHANGED_HE_BSS_COLOR;
}
if (params->he_cap) {
link_conf->he_ldpc =
params->he_cap->phy_cap_info[1] &
IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD;
link_conf->he_su_beamformer =
params->he_cap->phy_cap_info[3] &
IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER;
link_conf->he_su_beamformee =
params->he_cap->phy_cap_info[4] &
IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE;
link_conf->he_mu_beamformer =
params->he_cap->phy_cap_info[4] &
IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER;
link_conf->he_full_ul_mumimo =
params->he_cap->phy_cap_info[2] &
IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO;
}
if (params->eht_cap) {
if (!link_conf->he_support)
return -EOPNOTSUPP;
link_conf->eht_support = true ;
link_conf->eht_su_beamformer =
params->eht_cap->fixed.phy_cap_info[0] &
IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER;
link_conf->eht_su_beamformee =
params->eht_cap->fixed.phy_cap_info[0] &
IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE;
link_conf->eht_mu_beamformer =
params->eht_cap->fixed.phy_cap_info[7] &
(IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ |
IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ |
IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ);
link_conf->eht_80mhz_full_bw_ul_mumimo =
params->eht_cap->fixed.phy_cap_info[7] &
(IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_80MHZ |
IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_160MHZ |
IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_320MHZ);
link_conf->eht_disable_mcs15 =
u8_get_bits(params->eht_oper->params,
IEEE80211_EHT_OPER_MCS15_DISABLE);
} else {
link_conf->eht_su_beamformer = false ;
link_conf->eht_su_beamformee = false ;
link_conf->eht_mu_beamformer = false ;
}
if (sdata->vif.type == NL80211_IFTYPE_AP &&
params->mbssid_config.tx_wdev) {
err = ieee80211_set_ap_mbssid_options(sdata,
¶ms->mbssid_config,
link_conf);
if (err)
return err;
}
err = ieee80211_link_use_channel(link, &chanreq,
IEEE80211_CHANCTX_SHARED);
if (!err)
ieee80211_link_copy_chanctx_to_vlans(link, false );
if (err) {
link_conf->beacon_int = prev_beacon_int;
return err;
}
/*
* Apply control port protocol, this allows us to
* not encrypt dynamic WEP control frames.
*/
sdata->control_port_protocol = params->crypto.control_port_ethertype;
sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
sdata->control_port_over_nl80211 =
params->crypto.control_port_over_nl80211;
sdata->control_port_no_preauth =
params->crypto.control_port_no_preauth;
list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
vlan->control_port_protocol =
params->crypto.control_port_ethertype;
vlan->control_port_no_encrypt =
params->crypto.control_port_no_encrypt;
vlan->control_port_over_nl80211 =
params->crypto.control_port_over_nl80211;
vlan->control_port_no_preauth =
params->crypto.control_port_no_preauth;
}
link_conf->dtim_period = params->dtim_period;
link_conf->enable_beacon = true ;
link_conf->allow_p2p_go_ps = sdata->vif.p2p;
link_conf->twt_responder = params->twt_responder;
link_conf->he_obss_pd = params->he_obss_pd;
link_conf->he_bss_color = params->beacon.he_bss_color;
link_conf->s1g_long_beacon_period = params->s1g_long_beacon_period;
sdata->vif.cfg.s1g = params->chandef.chan->band == NL80211_BAND_S1GHZ;
sdata->vif.cfg.ssid_len = params->ssid_len;
if (params->ssid_len)
memcpy(sdata->vif.cfg.ssid, params->ssid,
params->ssid_len);
link_conf->hidden_ssid =
(params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
memset(&link_conf->p2p_noa_attr, 0,
sizeof (link_conf->p2p_noa_attr));
link_conf->p2p_noa_attr.oppps_ctwindow =
params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
if (params->p2p_opp_ps)
link_conf->p2p_noa_attr.oppps_ctwindow |=
IEEE80211_P2P_OPPPS_ENABLE_BIT;
sdata->beacon_rate_set = false ;
if (wiphy_ext_feature_isset(local->hw.wiphy,
NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
for (i = 0; i < NUM_NL80211_BANDS; i++) {
sdata->beacon_rateidx_mask[i] =
params->beacon_rate.control[i].legacy;
if (sdata->beacon_rateidx_mask[i])
sdata->beacon_rate_set = true ;
}
}
if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL))
link_conf->beacon_tx_rate = params->beacon_rate;
err = ieee80211_assign_beacon(sdata, link, ¶ms->beacon, NULL, NULL,
&changed);
if (err < 0)
goto error;
err = ieee80211_set_fils_discovery(sdata, ¶ms->fils_discovery,
link, link_conf, &changed);
if (err < 0)
goto error;
err = ieee80211_set_unsol_bcast_probe_resp(sdata,
¶ms->unsol_bcast_probe_resp,
link, link_conf, &changed);
if (err < 0)
goto error;
if (sdata->vif.cfg.s1g) {
err = ieee80211_set_s1g_short_beacon(sdata, link,
¶ms->s1g_short_beacon);
if (err < 0)
goto error;
}
err = drv_start_ap(sdata->local, sdata, link_conf);
if (err) {
old = sdata_dereference(link->u.ap.beacon, sdata);
if (old)
kfree_rcu(old, rcu_head);
RCU_INIT_POINTER(link->u.ap.beacon, NULL);
if (ieee80211_num_beaconing_links(sdata) == 0)
sdata->u.ap.active = false ;
goto error;
}
tsf = drv_get_tsf(local, sdata);
ieee80211_recalc_dtim(sdata, tsf);
if (link->u.ap.s1g_short_beacon)
ieee80211_recalc_sb_count(sdata, tsf);
ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_SSID);
ieee80211_link_info_change_notify(sdata, link, changed);
if (ieee80211_num_beaconing_links(sdata) <= 1)
netif_carrier_on(dev);
list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
netif_carrier_on(vlan->dev);
return 0;
error:
ieee80211_link_release_channel(link);
return err;
}
static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_ap_update *params)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_link_data *link;
struct cfg80211_beacon_data *beacon = ¶ms->beacon;
struct beacon_data *old;
int err;
struct ieee80211_bss_conf *link_conf;
u64 changed = 0;
lockdep_assert_wiphy(wiphy);
link = sdata_dereference(sdata->link[beacon->link_id], sdata);
if (!link)
return -ENOLINK;
link_conf = link->conf;
/* don't allow changing the beacon while a countdown is in place - offset
* of channel switch counter may change
*/
if (link_conf->csa_active || link_conf->color_change_active)
return -EBUSY;
old = sdata_dereference(link->u.ap.beacon, sdata);
if (!old)
return -ENOENT;
err = ieee80211_assign_beacon(sdata, link, beacon, NULL, NULL,
&changed);
if (err < 0)
return err;
err = ieee80211_set_fils_discovery(sdata, ¶ms->fils_discovery,
link, link_conf, &changed);
if (err < 0)
return err;
err = ieee80211_set_unsol_bcast_probe_resp(sdata,
¶ms->unsol_bcast_probe_resp,
link, link_conf, &changed);
if (err < 0)
return err;
if (link->u.ap.s1g_short_beacon) {
err = ieee80211_set_s1g_short_beacon(sdata, link,
¶ms->s1g_short_beacon);
if (err < 0)
return err;
}
if (beacon->he_bss_color_valid &&
beacon->he_bss_color.enabled != link_conf->he_bss_color.enabled) {
link_conf->he_bss_color.enabled = beacon->he_bss_color.enabled;
changed |= BSS_CHANGED_HE_BSS_COLOR;
}
ieee80211_link_info_change_notify(sdata, link, changed);
return 0;
}
static void ieee80211_free_next_beacon(struct ieee80211_link_data *link)
{
if (!link->u.ap.next_beacon)
return ;
kfree(link->u.ap.next_beacon->mbssid_ies);
kfree(link->u.ap.next_beacon->rnr_ies);
kfree(link->u.ap.next_beacon);
link->u.ap.next_beacon = NULL;
}
static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev,
unsigned int link_id)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_sub_if_data *vlan;
struct ieee80211_local *local = sdata->local;
struct beacon_data *old_beacon;
struct probe_resp *old_probe_resp;
struct fils_discovery_data *old_fils_discovery;
struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp;
struct s1g_short_beacon_data *old_s1g_short_beacon;
struct cfg80211_chan_def chandef;
struct ieee80211_link_data *link =
sdata_dereference(sdata->link[link_id], sdata);
struct ieee80211_bss_conf *link_conf = link->conf;
LIST_HEAD(keys);
lockdep_assert_wiphy(local->hw.wiphy);
old_beacon = sdata_dereference(link->u.ap.beacon, sdata);
if (!old_beacon)
return -ENOENT;
old_probe_resp = sdata_dereference(link->u.ap.probe_resp,
sdata);
old_fils_discovery = sdata_dereference(link->u.ap.fils_discovery,
sdata);
old_unsol_bcast_probe_resp =
sdata_dereference(link->u.ap.unsol_bcast_probe_resp,
sdata);
old_s1g_short_beacon =
sdata_dereference(link->u.ap.s1g_short_beacon, sdata);
/* abort any running channel switch or color change */
link_conf->csa_active = false ;
link_conf->color_change_active = false ;
ieee80211_vif_unblock_queues_csa(sdata);
ieee80211_free_next_beacon(link);
/* turn off carrier for this interface and dependent VLANs */
list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
netif_carrier_off(vlan->dev);
if (ieee80211_num_beaconing_links(sdata) <= 1) {
netif_carrier_off(dev);
sdata->u.ap.active = false ;
}
/* remove beacon and probe response */
RCU_INIT_POINTER(link->u.ap.beacon, NULL);
RCU_INIT_POINTER(link->u.ap.probe_resp, NULL);
RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL);
RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL);
RCU_INIT_POINTER(link->u.ap.s1g_short_beacon, NULL);
kfree_rcu(old_beacon, rcu_head);
if (old_probe_resp)
kfree_rcu(old_probe_resp, rcu_head);
if (old_fils_discovery)
kfree_rcu(old_fils_discovery, rcu_head);
if (old_unsol_bcast_probe_resp)
kfree_rcu(old_unsol_bcast_probe_resp, rcu_head);
if (old_s1g_short_beacon)
kfree_rcu(old_s1g_short_beacon, rcu_head);
kfree(link_conf->ftmr_params);
link_conf->ftmr_params = NULL;
link_conf->bssid_index = 0;
link_conf->nontransmitted = false ;
link_conf->ema_ap = false ;
link_conf->bssid_indicator = 0;
link_conf->fils_discovery.min_interval = 0;
link_conf->fils_discovery.max_interval = 0;
link_conf->unsol_bcast_probe_resp_interval = 0;
__sta_info_flush(sdata, true , link_id, NULL);
ieee80211_remove_link_keys(link, &keys);
if (!list_empty(&keys)) {
synchronize_net();
ieee80211_free_key_list(local, &keys);
}
ieee80211_stop_mbssid(sdata);
RCU_INIT_POINTER(link_conf->tx_bss_conf, NULL);
link_conf->enable_beacon = false ;
sdata->beacon_rate_set = false ;
sdata->vif.cfg.ssid_len = 0;
sdata->vif.cfg.s1g = false ;
clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
ieee80211_link_info_change_notify(sdata, link,
BSS_CHANGED_BEACON_ENABLED);
if (sdata->wdev.links[link_id].cac_started) {
chandef = link_conf->chanreq.oper;
wiphy_delayed_work_cancel(wiphy, &link->dfs_cac_timer_work);
cfg80211_cac_event(sdata->dev, &chandef,
NL80211_RADAR_CAC_ABORTED,
GFP_KERNEL, link_id);
}
drv_stop_ap(sdata->local, sdata, link_conf);
/* free all potentially still buffered bcast frames */
local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf);
ieee80211_link_copy_chanctx_to_vlans(link, true );
ieee80211_link_release_channel(link);
return 0;
}
static int sta_apply_auth_flags(struct ieee80211_local *local,
struct sta_info *sta,
u32 mask, u32 set)
{
int ret;
if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
!test_sta_flag(sta, WLAN_STA_AUTH)) {
ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
if (ret)
return ret;
}
if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
!test_sta_flag(sta, WLAN_STA_ASSOC)) {
/*
* When peer becomes associated, init rate control as
* well. Some drivers require rate control initialized
* before drv_sta_state() is called.
*/
if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
rate_control_rate_init_all_links(sta);
ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
if (ret)
return ret;
}
if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
else
ret = 0;
if (ret)
return ret;
}
if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
!(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
test_sta_flag(sta, WLAN_STA_ASSOC)) {
ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
if (ret)
return ret;
}
if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
!(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
test_sta_flag(sta, WLAN_STA_AUTH)) {
ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
if (ret)
return ret;
}
return 0;
}
static void sta_apply_mesh_params(struct ieee80211_local *local,
struct sta_info *sta,
struct station_parameters *params)
{
#ifdef CONFIG_MAC80211_MESH
struct ieee80211_sub_if_data *sdata = sta->sdata;
u64 changed = 0;
if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
switch (params->plink_state) {
case NL80211_PLINK_ESTAB:
if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
changed = mesh_plink_inc_estab_count(sdata);
sta->mesh->plink_state = params->plink_state;
sta->mesh->aid = params->peer_aid;
ieee80211_mps_sta_status_update(sta);
changed |= ieee80211_mps_set_sta_local_pm(sta,
sdata->u.mesh.mshcfg.power_mode);
ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg);
/* init at low value */
ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10);
break ;
case NL80211_PLINK_LISTEN:
case NL80211_PLINK_BLOCKED:
case NL80211_PLINK_OPN_SNT:
case NL80211_PLINK_OPN_RCVD:
case NL80211_PLINK_CNF_RCVD:
case NL80211_PLINK_HOLDING:
if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
changed = mesh_plink_dec_estab_count(sdata);
sta->mesh->plink_state = params->plink_state;
ieee80211_mps_sta_status_update(sta);
changed |= ieee80211_mps_set_sta_local_pm(sta,
NL80211_MESH_POWER_UNKNOWN);
break ;
default :
/* nothing */
break ;
}
}
switch (params->plink_action) {
case NL80211_PLINK_ACTION_NO_ACTION:
/* nothing */
break ;
case NL80211_PLINK_ACTION_OPEN:
changed |= mesh_plink_open(sta);
break ;
case NL80211_PLINK_ACTION_BLOCK:
changed |= mesh_plink_block(sta);
break ;
}
if (params->local_pm)
changed |= ieee80211_mps_set_sta_local_pm(sta,
params->local_pm);
ieee80211_mbss_info_change_notify(sdata, changed);
#endif
}
enum sta_link_apply_mode {
STA_LINK_MODE_NEW,
STA_LINK_MODE_STA_MODIFY,
STA_LINK_MODE_LINK_MODIFY,
};
static int sta_link_apply_parameters(struct ieee80211_local *local,
struct sta_info *sta,
enum sta_link_apply_mode mode,
struct link_station_parameters *params)
{
struct ieee80211_supported_band *sband;
struct ieee80211_sub_if_data *sdata = sta->sdata;
u32 link_id = params->link_id < 0 ? 0 : params->link_id;
struct ieee80211_link_data *link =
sdata_dereference(sdata->link[link_id], sdata);
struct link_sta_info *link_sta =
rcu_dereference_protected(sta->link[link_id],
lockdep_is_held(&local->hw.wiphy->mtx));
bool changes = params->link_mac ||
params->txpwr_set ||
params->supported_rates_len ||
params->ht_capa ||
params->vht_capa ||
params->he_capa ||
params->eht_capa ||
params->s1g_capa ||
params->opmode_notif_used;
switch (mode) {
case STA_LINK_MODE_NEW:
if (!params->link_mac)
return -EINVAL;
break ;
case STA_LINK_MODE_LINK_MODIFY:
break ;
case STA_LINK_MODE_STA_MODIFY:
if (params->link_id >= 0)
break ;
if (!changes)
return 0;
break ;
}
if (!link || !link_sta)
return -EINVAL;
sband = ieee80211_get_link_sband(link);
if (!sband)
return -EINVAL;
if (params->link_mac) {
if (mode == STA_LINK_MODE_NEW) {
memcpy(link_sta->addr, params->link_mac, ETH_ALEN);
memcpy(link_sta->pub->addr, params->link_mac, ETH_ALEN);
} else if (!ether_addr_equal(link_sta->addr,
params->link_mac)) {
return -EINVAL;
}
}
if (params->txpwr_set) {
int ret;
link_sta->pub->txpwr.type = params->txpwr.type;
if (params->txpwr.type == NL80211_TX_POWER_LIMITED)
link_sta->pub->txpwr.power = params->txpwr.power;
ret = drv_sta_set_txpwr(local, sdata, sta);
if (ret)
return ret;
}
if (params->supported_rates &&
params->supported_rates_len &&
!ieee80211_parse_bitrates(link->conf->chanreq.oper.width,
sband, params->supported_rates,
params->supported_rates_len,
&link_sta->pub->supp_rates[sband->band]))
return -EINVAL;
if (params->ht_capa)
ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
params->ht_capa, link_sta);
/* VHT can override some HT caps such as the A-MSDU max length */
if (params->vht_capa)
ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
params->vht_capa, NULL,
link_sta);
if (params->he_capa)
ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband,
(void *)params->he_capa,
params->he_capa_len,
(void *)params->he_6ghz_capa,
link_sta);
if (params->he_capa && params->eht_capa)
ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband,
(u8 *)params->he_capa,
params->he_capa_len,
params->eht_capa,
params->eht_capa_len,
link_sta);
if (params->s1g_capa)
ieee80211_s1g_cap_to_sta_s1g_cap(sdata, params->s1g_capa,
link_sta);
ieee80211_sta_init_nss(link_sta);
if (params->opmode_notif_used) {
enum nl80211_chan_width width = link->conf->chanreq.oper.width;
switch (width) {
case NL80211_CHAN_WIDTH_20:
case NL80211_CHAN_WIDTH_40:
case NL80211_CHAN_WIDTH_80:
case NL80211_CHAN_WIDTH_160:
case NL80211_CHAN_WIDTH_80P80:
case NL80211_CHAN_WIDTH_320: /* not VHT, allowed for HE/EHT */
break ;
default :
return -EINVAL;
}
/* returned value is only needed for rc update, but the
* rc isn't initialized here yet, so ignore it
*/
__ieee80211_vht_handle_opmode(sdata, link_sta,
params->opmode_notif,
sband->band);
}
return 0;
}
static int sta_apply_parameters(struct ieee80211_local *local,
struct sta_info *sta,
struct station_parameters *params)
{
struct ieee80211_sub_if_data *sdata = sta->sdata;
u32 mask, set;
int ret = 0;
mask = params->sta_flags_mask;
set = params->sta_flags_set;
if (ieee80211_vif_is_mesh(&sdata->vif)) {
/*
* In mesh mode, ASSOCIATED isn't part of the nl80211
* API but must follow AUTHENTICATED for driver state.
*/
if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
} else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
/*
* TDLS -- everything follows authorized, but
* only becoming authorized is possible, not
* going back
*/
if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
BIT(NL80211_STA_FLAG_ASSOCIATED);
mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
BIT(NL80211_STA_FLAG_ASSOCIATED);
}
}
if (mask & BIT(NL80211_STA_FLAG_WME) &&
local->hw.queues >= IEEE80211_NUM_ACS)
sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
/* auth flags will be set later for TDLS,
* and for unassociated stations that move to associated */
if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
!((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
(set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
ret = sta_apply_auth_flags(local, sta, mask, set);
if (ret)
return ret;
}
if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
else
clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
}
if (mask & BIT(NL80211_STA_FLAG_MFP)) {
sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
if (set & BIT(NL80211_STA_FLAG_MFP))
set_sta_flag(sta, WLAN_STA_MFP);
else
clear_sta_flag(sta, WLAN_STA_MFP);
}
if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
set_sta_flag(sta, WLAN_STA_TDLS_PEER);
else
clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
}
if (mask & BIT(NL80211_STA_FLAG_SPP_AMSDU))
sta->sta.spp_amsdu = set & BIT(NL80211_STA_FLAG_SPP_AMSDU);
/* mark TDLS channel switch support, if the AP allows it */
if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
!sdata->deflink.u.mgd.tdls_chan_switch_prohibited &&
params->ext_capab_len >= 4 &&
params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
!sdata->u.mgd.tdls_wider_bw_prohibited &&
ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
params->ext_capab_len >= 8 &&
params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
sta->sta.uapsd_queues = params->uapsd_queues;
sta->sta.max_sp = params->max_sp;
}
ieee80211_sta_set_max_amsdu_subframes(sta, params->ext_capab,
params->ext_capab_len);
/*
* cfg80211 validates this (1-2007) and allows setting the AID
* only when creating a new station entry
*/
if (params->aid)
sta->sta.aid = params->aid;
/*
* Some of the following updates would be racy if called on an
* existing station, via ieee80211_change_station(). However,
* all such changes are rejected by cfg80211 except for updates
* changing the supported rates on an existing but not yet used
* TDLS peer.
*/
if (params->listen_interval >= 0)
sta->listen_interval = params->listen_interval;
if (params->eml_cap_present)
sta->sta.eml_cap = params->eml_cap;
ret = sta_link_apply_parameters(local, sta, STA_LINK_MODE_STA_MODIFY,
¶ms->link_sta_params);
if (ret)
return ret;
if (params->support_p2p_ps >= 0)
sta->sta.support_p2p_ps = params->support_p2p_ps;
if (ieee80211_vif_is_mesh(&sdata->vif))
sta_apply_mesh_params(local, sta, params);
if (params->airtime_weight)
sta->airtime_weight = params->airtime_weight;
/* set the STA state after all sta info from usermode has been set */
if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
ret = sta_apply_auth_flags(local, sta, mask, set);
if (ret)
return ret;
}
/* Mark the STA as MLO if MLD MAC address is available */
if (params->link_sta_params.mld_mac)
sta->sta.mlo = true ;
return 0;
}
static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
const u8 *mac,
struct station_parameters *params)
{
struct ieee80211_local *local = wiphy_priv(wiphy);
struct sta_info *sta;
struct ieee80211_sub_if_data *sdata;
int err;
lockdep_assert_wiphy(local->hw.wiphy);
if (params->vlan) {
sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
sdata->vif.type != NL80211_IFTYPE_AP)
return -EINVAL;
} else
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
if (ether_addr_equal(mac, sdata->vif.addr))
return -EINVAL;
if (!is_valid_ether_addr(mac))
return -EINVAL;
if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) &&
sdata->vif.type == NL80211_IFTYPE_STATION &&
!sdata->u.mgd.associated)
return -EINVAL;
/*
* If we have a link ID, it can be a non-MLO station on an AP MLD,
* but we need to have a link_mac in that case as well, so use the
* STA's MAC address in that case.
*/
if (params->link_sta_params.link_id >= 0)
sta = sta_info_alloc_with_link(sdata, mac,
params->link_sta_params.link_id,
params->link_sta_params.link_mac ?: mac,
GFP_KERNEL);
else
sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
if (!sta)
return -ENOMEM;
if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
sta->sta.tdls = true ;
/* Though the mutex is not needed here (since the station is not
* visible yet), sta_apply_parameters (and inner functions) require
* the mutex due to other paths.
*/
err = sta_apply_parameters(local, sta, params);
if (err) {
sta_info_free(local, sta);
return err;
}
/*
* for TDLS and for unassociated station, rate control should be
* initialized only when rates are known and station is marked
* authorized/associated
*/
if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
test_sta_flag(sta, WLAN_STA_ASSOC))
rate_control_rate_init_all_links(sta);
return sta_info_insert(sta);
}
static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
struct station_del_parameters *params)
{
struct ieee80211_sub_if_data *sdata;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
if (params->mac)
return sta_info_destroy_addr_bss(sdata, params->mac);
sta_info_flush(sdata, params->link_id);
return 0;
}
static int ieee80211_change_station(struct wiphy *wiphy,
struct net_device *dev, const u8 *mac,
struct station_parameters *params)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_local *local = wiphy_priv(wiphy);
struct sta_info *sta;
struct ieee80211_sub_if_data *vlansdata;
enum cfg80211_station_type statype;
int err;
lockdep_assert_wiphy(local->hw.wiphy);
sta = sta_info_get_bss(sdata, mac);
if (!sta)
return -ENOENT;
switch (sdata->vif.type) {
case NL80211_IFTYPE_MESH_POINT:
if (sdata->u.mesh.user_mpm)
statype = CFG80211_STA_MESH_PEER_USER;
else
statype = CFG80211_STA_MESH_PEER_KERNEL;
break ;
case NL80211_IFTYPE_ADHOC:
statype = CFG80211_STA_IBSS;
break ;
case NL80211_IFTYPE_STATION:
if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
statype = CFG80211_STA_AP_STA;
break ;
}
if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
statype = CFG80211_STA_TDLS_PEER_ACTIVE;
else
statype = CFG80211_STA_TDLS_PEER_SETUP;
break ;
case NL80211_IFTYPE_AP:
case NL80211_IFTYPE_AP_VLAN:
if (test_sta_flag(sta, WLAN_STA_ASSOC))
statype = CFG80211_STA_AP_CLIENT;
else
statype = CFG80211_STA_AP_CLIENT_UNASSOC;
break ;
default :
return -EOPNOTSUPP;
}
err = cfg80211_check_station_change(wiphy, params, statype);
if (err)
return err;
if (params->vlan && params->vlan != sta->sdata->dev) {
vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
if (params->vlan->ieee80211_ptr->use_4addr) {
if (vlansdata->u.vlan.sta)
return -EBUSY;
rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
__ieee80211_check_fast_rx_iface(vlansdata);
drv_sta_set_4addr(local, sta->sdata, &sta->sta, true );
}
if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
sta->sdata->u.vlan.sta)
RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
ieee80211_vif_dec_num_mcast(sta->sdata);
sta->sdata = vlansdata;
ieee80211_check_fast_rx(sta);
ieee80211_check_fast_xmit(sta);
if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) {
ieee80211_vif_inc_num_mcast(sta->sdata);
cfg80211_send_layer2_update(sta->sdata->dev,
sta->sta.addr);
}
}
err = sta_apply_parameters(local, sta, params);
if (err)
return err;
if (sdata->vif.type == NL80211_IFTYPE_STATION &&
params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
ieee80211_recalc_ps(local);
--> --------------------
--> maximum size reached
--> --------------------
Messung V0.5 C=95 H=96 G=95
¤ Dauer der Verarbeitung: 0.52 Sekunden
(vorverarbeitet)
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