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linux/linux/kernel/git/dtor/input/refs/heads/test/./net/mac80211/cfg.c
blob: 3b58af59f7e4295cad37fc61a0b14d63f9f712eb [file] [edit]
// 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) 2018-2026 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);
/* don't care about endianness - just check for 0 */
memcpy(&membership, params->vht_mumimo_groups,
WLAN_MEMBERSHIP_LEN);
mu_mimo_groups = membership != 0;
/* Unset following if configured explicitly */
eth_broadcast_addr(sdata->u.mntr.mu_follow_addr);
}
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);
/* Unset current membership until a management frame is RXed */
memset(sdata->vif.bss_conf.mu_group.membership, 0,
WLAN_MEMBERSHIP_LEN);
}
sdata->vif.bss_conf.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow;
/* Notify only after setting mu_mimo_owner */
if (sdata->vif.bss_conf.mu_mimo_owner &&
sdata->flags & IEEE80211_SDATA_IN_DRIVER)
ieee80211_link_info_change_notify(sdata, &sdata->deflink,
BSS_CHANGED_MU_GROUPS);
}
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 = NULL;
/* 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;
}
/* validate whether MU-MIMO can be configured */
if (!ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF) &&
!ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR) &&
(params->vht_mumimo_groups || params->vht_mumimo_follow_addr))
return -EOPNOTSUPP;
/* Also update dependent monitor_sdata if required */
if (test_bit(SDATA_STATE_RUNNING, &sdata->state) &&
!ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR))
monitor_sdata = wiphy_dereference(local->hw.wiphy,
local->monitor_sdata);
/* apply all changes now - no failures allowed */
if (ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF) ||
ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) {
/* This is copied in when the VIF is activated */
ieee80211_set_mu_mimo_follow(sdata, params);
if (monitor_sdata)
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;
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 void ieee80211_nan_conf_free(struct cfg80211_nan_conf *conf)
{
kfree(conf->extra_nan_attrs);
kfree(conf->vendor_elems);
memset(conf, 0, sizeof(*conf));
}
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_nan_conf_free(&sdata->u.nan.conf);
ieee80211_sdata_stop(sdata);
ieee80211_recalc_idle(sdata->local);
}
static int ieee80211_nan_conf_copy(struct cfg80211_nan_conf *dst,
struct cfg80211_nan_conf *src,
u32 changes)
{
if (changes & CFG80211_NAN_CONF_CHANGED_PREF)
dst->master_pref = src->master_pref;
if (changes & CFG80211_NAN_CONF_CHANGED_BANDS)
dst->bands = src->bands;
if (changes & CFG80211_NAN_CONF_CHANGED_CONFIG) {
dst->scan_period = src->scan_period;
dst->scan_dwell_time = src->scan_dwell_time;
dst->discovery_beacon_interval =
src->discovery_beacon_interval;
dst->enable_dw_notification = src->enable_dw_notification;
memcpy(&dst->band_cfgs, &src->band_cfgs,
sizeof(dst->band_cfgs));
kfree(dst->extra_nan_attrs);
dst->extra_nan_attrs = NULL;
dst->extra_nan_attrs_len = 0;
kfree(dst->vendor_elems);
dst->vendor_elems = NULL;
dst->vendor_elems_len = 0;
if (is_zero_ether_addr(dst->cluster_id))
ether_addr_copy(dst->cluster_id, src->cluster_id);
if (src->extra_nan_attrs && src->extra_nan_attrs_len) {
dst->extra_nan_attrs = kmemdup(src->extra_nan_attrs,
src->extra_nan_attrs_len,
GFP_KERNEL);
if (!dst->extra_nan_attrs)
goto no_mem;
dst->extra_nan_attrs_len = src->extra_nan_attrs_len;
}
if (src->vendor_elems && src->vendor_elems_len) {
dst->vendor_elems = kmemdup(src->vendor_elems,
src->vendor_elems_len,
GFP_KERNEL);
if (!dst->vendor_elems)
goto no_mem;
dst->vendor_elems_len = src->vendor_elems_len;
}
}
return 0;
no_mem:
ieee80211_nan_conf_free(dst);
return -ENOMEM;
}
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);
ret = ieee80211_nan_conf_copy(&sdata->u.nan.conf, conf, 0xFFFFFFFF);
if (ret) {
ieee80211_stop_nan(wiphy, wdev);
return ret;
}
return 0;
}
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;
if (!changes)
return 0;
/* First make a full copy of the previous configuration and then apply
* the changes. This might be a little wasteful, but it is simpler.
*/
ret = ieee80211_nan_conf_copy(&new_conf, &sdata->u.nan.conf,
0xFFFFFFFF);
if (ret < 0)
return ret;
ret = ieee80211_nan_conf_copy(&new_conf, conf, changes);
if (ret < 0)
return ret;
ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes);
if (ret) {
ieee80211_nan_conf_free(&new_conf);
} else {
ieee80211_nan_conf_free(&sdata->u.nan.conf);
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;
if (WARN_ON(wiphy->nan_capa.flags & WIPHY_NAN_FLAGS_USERSPACE_DE))
return -EOPNOTSUPP;
spin_lock_bh(&sdata->u.nan.de.func_lock);
ret = idr_alloc(&sdata->u.nan.de.function_inst_ids,
nan_func, 1, sdata->local->hw.max_nan_de_entries + 1,
GFP_ATOMIC);
spin_unlock_bh(&sdata->u.nan.de.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.de.func_lock);
idr_remove(&sdata->u.nan.de.function_inst_ids,
nan_func->instance_id);
spin_unlock_bh(&sdata->u.nan.de.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.de.func_lock);
idr_for_each_entry(&sdata->u.nan.de.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;
if (WARN_ON(wiphy->nan_capa.flags & WIPHY_NAN_FLAGS_USERSPACE_DE))
return;
spin_lock_bh(&sdata->u.nan.de.func_lock);
func = ieee80211_find_nan_func_by_cookie(sdata, cookie);
if (func)
instance_id = func->instance_id;
spin_unlock_bh(&sdata->u.nan.de.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 wireless_dev *wdev,
int link_id, u8 key_idx, bool pairwise,
const u8 *mac_addr, struct key_params *params)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
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.
*
* With (re)association frame encryption enabled, cfg80211
* may deliver keys to mac80211 before the station has
* associated. In that case, accept the key if the station
* is an Enhanced Privacy Protection (EPP) peer.
* If (re)association frame encryption support is not present,
* cfg80211 will not allow key installation in non‑AP STA mode.
*
* TODO: accept the key if we have a station entry and
* add it to the device after the station associates.
*/
if (!sta || (!sta->sta.epp_peer &&
!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:
case NL80211_IFTYPE_NAN:
case NL80211_IFTYPE_NAN_DATA:
/* 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_PD:
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 wireless_dev *wdev,
int link_id, u8 key_idx, bool pairwise,
const u8 *mac_addr)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
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 wireless_dev *wdev,
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_WDEV_TO_SUB_IF(wdev);
rcu_read_lock();
key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr);
if (!key)
goto out;
memset(&params, 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, &params);
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 wireless_dev *wdev,
int link_id, u8 key_idx)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
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 wireless_dev *wdev,
int link_id, u8 key_idx)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
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 wireless_dev *wdev,
int idx, u8 *mac, struct station_info *sinfo)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
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 wireless_dev *wdev,
const u8 *mac, struct station_info *sinfo)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
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 enum ieee80211_sta_rx_bandwidth
ieee80211_calc_ap_he_and_lower(struct cfg80211_beacon_data *params)
{
const struct ieee80211_vht_operation *vht_oper = params->vht_oper;
int ccfs0, ccfs1;
if (params->he_oper) {
const struct ieee80211_he_6ghz_oper *he_6ghz_oper;
if (params->he_oper->he_oper_params &
cpu_to_le32(IEEE80211_HE_OPERATION_VHT_OPER_INFO))
vht_oper = (void *)params->he_oper->optional;
he_6ghz_oper = ieee80211_he_6ghz_oper(params->he_oper);
if (he_6ghz_oper) {
switch (u8_get_bits(he_6ghz_oper->control,
IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH)) {
case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_20MHZ:
return IEEE80211_STA_RX_BW_20;
case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_40MHZ:
return IEEE80211_STA_RX_BW_40;
case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_80MHZ:
return IEEE80211_STA_RX_BW_80;
case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_160MHZ:
return IEEE80211_STA_RX_BW_160;
}
}
}
if (vht_oper) {
switch (vht_oper->chan_width) {
case IEEE80211_VHT_CHANWIDTH_USE_HT:
/* check for HT (or fall down to 20) below */
break;
case IEEE80211_VHT_CHANWIDTH_160MHZ:
case IEEE80211_VHT_CHANWIDTH_80P80MHZ:
/* deprecated encodings */
return IEEE80211_STA_RX_BW_160;
case IEEE80211_VHT_CHANWIDTH_80MHZ:
/*
* See IEEE 802.11-2020 Table 9-352-BSS bandwidth
* when the VHT Operation Information field Channel
* Width subfield is 1
*
* (IEEE80211_VHT_CHANWIDTH_80MHZ == 1)
*/
ccfs0 = vht_oper->center_freq_seg0_idx;
ccfs1 = vht_oper->center_freq_seg1_idx;
if (!ccfs0)
return IEEE80211_STA_RX_BW_80;
if (ccfs1 && abs(ccfs1 - ccfs0) == 8)
return IEEE80211_STA_RX_BW_160;
/* 80+80 - RX BW doesn't cover that / uses 160 */
if (ccfs1 && abs(ccfs1 - ccfs0) > 16)
return IEEE80211_STA_RX_BW_160;
fallthrough;
default:
/* reserved encoding - assume 80 */
return IEEE80211_STA_RX_BW_80;
}
}
if (params->ht_oper) {
switch (u8_get_bits(params->ht_oper->ht_param,
IEEE80211_HT_PARAM_CHA_SEC_OFFSET)) {
case IEEE80211_HT_PARAM_CHA_SEC_NONE:
default: /* invalid values */
return IEEE80211_STA_RX_BW_20;
case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
return IEEE80211_STA_RX_BW_40;
}
}
/* nothing found, must be 20 MHz */
return IEEE80211_STA_RX_BW_20;
}
static enum ieee80211_sta_rx_bandwidth
ieee80211_calc_ap_eht_bw(struct cfg80211_beacon_data *params,
enum ieee80211_sta_rx_bandwidth he_and_lower)
{
const struct ieee80211_eht_operation_info *info;
if (!params->eht_oper)
return he_and_lower;
info = ieee80211_eht_oper_info(params->eht_oper);
if (!info)
return he_and_lower;
switch (u8_get_bits(info->control, IEEE80211_EHT_OPER_CHAN_WIDTH)) {
case IEEE80211_EHT_OPER_CHAN_WIDTH_20MHZ:
return IEEE80211_STA_RX_BW_20;
case IEEE80211_EHT_OPER_CHAN_WIDTH_40MHZ:
return IEEE80211_STA_RX_BW_40;
case IEEE80211_EHT_OPER_CHAN_WIDTH_80MHZ:
return IEEE80211_STA_RX_BW_80;
case IEEE80211_EHT_OPER_CHAN_WIDTH_160MHZ:
return IEEE80211_STA_RX_BW_160;
case IEEE80211_EHT_OPER_CHAN_WIDTH_320MHZ:
return IEEE80211_STA_RX_BW_320;
}
/* invalid setting, assume 20 MHz */
return IEEE80211_STA_RX_BW_20;
}
static void ieee80211_update_ap_bandwidth(struct ieee80211_link_data *link,
struct cfg80211_beacon_data *params)
{
struct ieee80211_local *local = link->sdata->local;
struct ieee80211_chanctx_conf *chanctx_conf;
struct ieee80211_chanctx *chanctx;
/*
* Updating the beacon might, without even changing the channel, cause
* the usable bandwidth for some stations to be changed, for example
* if the beacon configuration is EHT with 160 MHz, HE could change
* between 20, 40, 80 and 160 MHz, and HE (or lower) clients need to
* be handled accordingly.
* Calculate the HE and lower bandwidth and apply that to all stations.
*
* In the future, this also needs to calculate EHT bandwidth and apply
* it to all stations not using UHR DBE, since the chandef would then
* include DBE.
*/
if (link->conf->chanreq.oper.chan->band == NL80211_BAND_S1GHZ)
return;
link->bss_bw.he_and_lower = ieee80211_calc_ap_he_and_lower(params);
link->bss_bw.eht = ieee80211_calc_ap_eht_bw(params,
link->bss_bw.he_and_lower);
chanctx_conf = sdata_dereference(link->conf->chanctx_conf, link->sdata);
chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf);
/*
* Note: this relies on ieee80211_recalc_chanctx_min_def() having
* the side effect of updating all stations, if they changed; that
* was normally for when the chandef changed but is used here too.
*/
ieee80211_recalc_chanctx_min_def(local, chanctx);
}
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;
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);
}
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);
ieee80211_update_ap_bandwidth(link, params);
*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,
.require_npca = true,
};
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->beacon.he_oper) {
link_conf->he_support = true;
link_conf->htc_trig_based_pkt_ext =
le32_get_bits(params->beacon.he_oper->he_oper_params,
IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK);
link_conf->frame_time_rts_th =
le32_get_bits(params->beacon.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->beacon.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 (params->beacon.uhr_oper) {
const struct ieee80211_uhr_npca_info *npca;
struct ieee80211_bss_npca_params npca_params = {};
if (!link_conf->eht_support)
return -EOPNOTSUPP;
link_conf->uhr_support = true;
npca = ieee80211_uhr_npca_info(params->beacon.uhr_oper);
if (!npca) {
chanreq.oper.npca_chan = NULL;
chanreq.oper.npca_punctured = 0;
} else {
npca_params.min_dur_thresh =
le32_get_bits(npca->params,
IEEE80211_UHR_NPCA_PARAMS_MIN_DUR_THRESH);
npca_params.switch_delay =
le32_get_bits(npca->params,
IEEE80211_UHR_NPCA_PARAMS_SWITCH_DELAY);
npca_params.switch_back_delay =
le32_get_bits(npca->params,
IEEE80211_UHR_NPCA_PARAMS_SWITCH_BACK_DELAY);
npca_params.init_qsrc =
le32_get_bits(npca->params,
IEEE80211_UHR_NPCA_PARAMS_INIT_QSRC);
npca_params.moplen =
le32_get_bits(npca->params,
IEEE80211_UHR_NPCA_PARAMS_MOPLEN);
npca_params.enabled = true;
}
if (memcmp(&npca_params, &link->conf->npca,
sizeof(npca_params))) {
link->conf->npca = npca_params;
changed |= BSS_CHANGED_NPCA;
}
}
if (sdata->vif.type == NL80211_IFTYPE_AP &&
params->mbssid_config.tx_wdev) {
err = ieee80211_set_ap_mbssid_options(sdata,
&params->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, &params->beacon, NULL, NULL,
&changed);
if (err < 0)
goto error;
err = ieee80211_set_fils_discovery(sdata, &params->fils_discovery,
link, link_conf, &changed);
if (err < 0)
goto error;
err = ieee80211_set_unsol_bcast_probe_resp(sdata,
&params->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,
&params->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 = &params->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, &params->fils_discovery,
link, link_conf, &changed);
if (err < 0)
return err;
err = ieee80211_set_unsol_bcast_probe_resp(sdata,
&params->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,
&params->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;
u64 changes = BSS_CHANGED_BEACON_ENABLED;
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);
if (link_conf->ftm_responder) {
link_conf->ftm_responder = false;
changes |= BSS_CHANGED_FTM_RESPONDER;
}
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_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, changes);
ieee80211_remove_link_keys(link, &keys);
if (!list_empty(&keys)) {
synchronize_net();
ieee80211_free_key_list(local, &keys);
}
if (sdata->wdev.links[link_id].cac_started) {
chandef = link_conf->chanreq.oper;
wiphy_hrtimer_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 = NULL;
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));
const struct ieee80211_sta_ht_cap *own_ht_cap;
const struct ieee80211_sta_vht_cap *own_vht_cap;
const struct ieee80211_sta_he_cap *own_he_cap;
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->uhr_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;
/*
* We should not have any changes in NDI station, its capabilities are
* copied from the NMI sta
*/
if (WARN_ON(sdata->vif.type == NL80211_IFTYPE_NAN_DATA))
return -EINVAL;
if (sdata->vif.type == NL80211_IFTYPE_NAN) {
own_ht_cap = &local->hw.wiphy->nan_capa.phy.ht;
own_vht_cap = &local->hw.wiphy->nan_capa.phy.vht;
own_he_cap = &local->hw.wiphy->nan_capa.phy.he;
} else {
sband = ieee80211_get_link_sband(link);
if (!sband)
return -EINVAL;
own_ht_cap = &sband->ht_cap;
own_vht_cap = &sband->vht_cap;
own_he_cap = ieee80211_get_he_iftype_cap_vif(sband, &sdata->vif);
}
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 (sdata->vif.type == NL80211_IFTYPE_NAN) {
static const u8 all_ofdm_rates[] = {
0x0c, 0x12, 0x18, 0x24, 0x30, 0x48, 0x60, 0x6c
};
/* Set the same supported_rates for all bands */
for (int i = 0; i < NUM_NL80211_BANDS; i++) {
struct ieee80211_supported_band *tmp =
sdata->local->hw.wiphy->bands[i];
if ((i != NL80211_BAND_2GHZ && i != NL80211_BAND_5GHZ) ||
!tmp)
continue;
if (!ieee80211_parse_bitrates(tmp, all_ofdm_rates,
sizeof(all_ofdm_rates),
&link_sta->pub->supp_rates[i]))
return -EINVAL;
}
}
if (params->supported_rates &&
params->supported_rates_len &&
!ieee80211_parse_bitrates(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, own_ht_cap,
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,
own_vht_cap,
params->vht_capa, NULL,
link_sta);
if (params->he_capa)
_ieee80211_he_cap_ie_to_sta_he_cap(sdata,
own_he_cap,
(void *)params->he_capa,
params->he_capa_len,
(sband && sband->band == NL80211_BAND_6GHZ) ?
(void *)params->he_6ghz_capa : NULL,
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->uhr_capa)
ieee80211_uhr_cap_ie_to_sta_uhr_cap(sdata, sband,
params->uhr_capa,
params->uhr_capa_len,
link_sta);
if (params->s1g_capa)
ieee80211_s1g_cap_to_sta_s1g_cap(sdata, params->s1g_capa,
link_sta);
switch (sdata->vif.type) {
case NL80211_IFTYPE_NAN:
case NL80211_IFTYPE_NAN_DATA:
/* not applicable - they don't use NSS/BW as capability */
break;
default:
ieee80211_sta_init_nss_bw_capa(link_sta, &link->conf->chanreq.oper);
break;
}
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 (params->epp_peer)
sta->sta.epp_peer = true;
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;
}
if (params->ext_capab)
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. For S1G APs, the current
* implementation supports a maximum of 1600 AIDs.
*/
if (params->aid) {
if (sdata->vif.cfg.s1g &&
params->aid > IEEE80211_MAX_SUPPORTED_S1G_AID)
return -EINVAL;
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,
&params->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;
if (params->nmi_mac) {
struct ieee80211_sub_if_data *nmi =
rcu_dereference_wiphy(local->hw.wiphy,
sdata->u.nan_data.nmi);
struct sta_info *nmi_sta;
if (WARN_ON(!nmi))
return -EINVAL;
nmi_sta = sta_info_get(nmi, params->nmi_mac);
if (!nmi_sta)
return -ENOENT;
rcu_assign_pointer(sta->sta.nmi, &nmi_sta->sta);
/* For NAN_DATA stations, copy capabilities from the NMI station */
if (!nmi_sta->deflink.pub->ht_cap.ht_supported)
return -EINVAL;
sta->deflink.pub->ht_cap = nmi_sta->deflink.pub->ht_cap;
sta->deflink.pub->vht_cap = nmi_sta->deflink.pub->vht_cap;
sta->deflink.pub->he_cap = nmi_sta->deflink.pub->he_cap;
memcpy(&sta->deflink.pub->supp_rates,
&nmi_sta->deflink.pub->supp_rates,
sizeof(sta->deflink.pub->supp_rates));
}
/* 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 wireless_dev *wdev,
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_WDEV_TO_SUB_IF(wdev);
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);
err = sta_info_insert(sta);
/*
* ieee80211_nan_update_ndi_carrier was called from sta_apply_parameters,
* but then we did not have the STA in the list.
*/
if (!err && sdata->vif.type == NL80211_IFTYPE_NAN_DATA)
ieee80211_nan_update_ndi_carrier(sta->sdata);
return err;
}
static int ieee80211_del_station(struct wiphy *wiphy, struct wireless_dev *wdev,
struct station_del_parameters *params)
{
struct ieee80211_sub_if_data *sdata;
sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
if (params->mac)
return sta_info_destroy_addr_bss(sdata, params->mac);
sta_info_flush(sdata, params->link_id);
return 0;
}
static int ieee80211_set_sta_4addr(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata,
struct sta_info *sta)
{
struct ieee80211_vif *vif = &sdata->vif;
struct wiphy *wiphy = local->hw.wiphy;
struct ieee80211_sub_if_data *master;
struct ieee80211_bss_conf *link_conf;
struct wireless_dev *wdev;
unsigned long master_iter;
int link_id;
int err;
lockdep_assert_wiphy(local->hw.wiphy);
if (sdata->u.vlan.sta)
return -EBUSY;
wdev = &sdata->wdev;
master = container_of(sdata->bss,
struct ieee80211_sub_if_data,
u.ap);
if (sta->sta.valid_links) {
u16 sta_links = sta->sta.valid_links;
u16 new_links = master->vif.valid_links & sta_links;
u16 orig_links = wdev->valid_links;
wdev->valid_links = new_links;
err = ieee80211_vif_set_links(sdata, new_links, 0);
if (err) {
wdev->valid_links = orig_links;
return err;
}
master_iter = master->vif.valid_links;
for_each_set_bit(link_id, &master_iter,
IEEE80211_MLD_MAX_NUM_LINKS) {
if (!(sta_links & BIT(link_id))) {
eth_zero_addr(wdev->links[link_id].addr);
} else {
link_conf = wiphy_dereference(wiphy,
vif->link_conf[link_id]);
ether_addr_copy(wdev->links[link_id].addr,
link_conf->bssid);
}
}
}
rcu_assign_pointer(sdata->u.vlan.sta, sta);
__ieee80211_check_fast_rx_iface(sdata);
drv_sta_set_4addr(local, sta->sdata, &sta->sta, true);
return 0;
}
static int ieee80211_change_station(struct wiphy *wiphy,
struct wireless_dev *wdev, const u8 *mac,
struct station_parameters *params)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
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;
case NL80211_IFTYPE_NAN:
statype = CFG80211_STA_NAN_MGMT;
break;
case NL80211_IFTYPE_NAN_DATA:
statype = CFG80211_STA_NAN_DATA;
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) {
err = ieee80211_set_sta_4addr(local, vlansdata, sta);
if (err)
return err;
}
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);
}
}
/* NAN capabilties should not change */
if (statype == CFG80211_STA_NAN_DATA &&
sta->deflink.pub->ht_cap.ht_supported &&
(params->link_sta_params.ht_capa ||
params->link_sta_params.vht_capa ||
params->link_sta_params.he_capa))
return -EINVAL;
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);
ieee80211_recalc_ps_vif(sdata);
}
return 0;
}
#ifdef CONFIG_MAC80211_MESH
static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
const u8 *dst, const u8 *next_hop)
{
struct ieee80211_sub_if_data *sdata;
struct mesh_path *mpath;
struct sta_info *sta;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
rcu_read_lock();
sta = sta_info_get(sdata, next_hop);
if (!sta) {
rcu_read_unlock();
return -ENOENT;
}
mpath = mesh_path_add(sdata, dst);
if (IS_ERR(mpath)) {
rcu_read_unlock();
return PTR_ERR(mpath);
}
mesh_path_fix_nexthop(mpath, sta);
rcu_read_unlock();
return 0;
}
static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
const u8 *dst)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
if (dst)
return mesh_path_del(sdata, dst);
mesh_path_flush_by_iface(sdata);
return 0;
}
static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
const u8 *dst, const u8 *next_hop)
{
struct ieee80211_sub_if_data *sdata;
struct mesh_path *mpath;
struct sta_info *sta;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
rcu_read_lock();
sta = sta_info_get(sdata, next_hop);
if (!sta) {
rcu_read_unlock();
return -ENOENT;
}
mpath = mesh_path_lookup(sdata, dst);
if (!mpath) {
rcu_read_unlock();
return -ENOENT;
}
mesh_path_fix_nexthop(mpath, sta);
rcu_read_unlock();
return 0;
}
static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
struct mpath_info *pinfo)
{
struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
if (next_hop_sta)
memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
else
eth_zero_addr(next_hop);
memset(pinfo, 0, sizeof(*pinfo));
pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
pinfo->filled = MPATH_INFO_FRAME_QLEN |
MPATH_INFO_SN |
MPATH_INFO_METRIC |
MPATH_INFO_EXPTIME |
MPATH_INFO_DISCOVERY_TIMEOUT |
MPATH_INFO_DISCOVERY_RETRIES |
MPATH_INFO_FLAGS |
MPATH_INFO_HOP_COUNT |
MPATH_INFO_PATH_CHANGE;
pinfo->frame_qlen = mpath->frame_queue.qlen;
pinfo->sn = mpath->sn;
pinfo->metric = mpath->metric;
if (time_before(jiffies, mpath->exp_time))
pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
pinfo->discovery_timeout =
jiffies_to_msecs(mpath->discovery_timeout);
pinfo->discovery_retries = mpath->discovery_retries;
if (mpath->flags & MESH_PATH_ACTIVE)
pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
if (mpath->flags & MESH_PATH_RESOLVING)
pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
if (mpath->flags & MESH_PATH_SN_VALID)
pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
if (mpath->flags & MESH_PATH_FIXED)
pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
if (mpath->flags & MESH_PATH_RESOLVED)
pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
pinfo->hop_count = mpath->hop_count;
pinfo->path_change_count = mpath->path_change_count;
}
static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
{
struct ieee80211_sub_if_data *sdata;
struct mesh_path *mpath;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
rcu_read_lock();
mpath = mesh_path_lookup(sdata, dst);
if (!mpath) {
rcu_read_unlock();
return -ENOENT;
}
memcpy(dst, mpath->dst, ETH_ALEN);
mpath_set_pinfo(mpath, next_hop, pinfo);
rcu_read_unlock();
return 0;
}
static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
int idx, u8 *dst, u8 *next_hop,
struct mpath_info *pinfo)
{
struct ieee80211_sub_if_data *sdata;
struct mesh_path *mpath;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
rcu_read_lock();
mpath = mesh_path_lookup_by_idx(sdata, idx);
if (!mpath) {
rcu_read_unlock();
return -ENOENT;
}
memcpy(dst, mpath->dst, ETH_ALEN);
mpath_set_pinfo(mpath, next_hop, pinfo);
rcu_read_unlock();
return 0;
}
static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
struct mpath_info *pinfo)
{
memset(pinfo, 0, sizeof(*pinfo));
memcpy(mpp, mpath->mpp, ETH_ALEN);
pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
}
static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
u8 *dst, u8 *mpp, struct mpath_info *pinfo)
{
struct ieee80211_sub_if_data *sdata;
struct mesh_path *mpath;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
rcu_read_lock();
mpath = mpp_path_lookup(sdata, dst);
if (!mpath) {
rcu_read_unlock();
return -ENOENT;
}
memcpy(dst, mpath->dst, ETH_ALEN);
mpp_set_pinfo(mpath, mpp, pinfo);
rcu_read_unlock();
return 0;
}
static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
int idx, u8 *dst, u8 *mpp,
struct mpath_info *pinfo)
{
struct ieee80211_sub_if_data *sdata;
struct mesh_path *mpath;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
rcu_read_lock();
mpath = mpp_path_lookup_by_idx(sdata, idx);
if (!mpath) {
rcu_read_unlock();
return -ENOENT;
}
memcpy(dst, mpath->dst, ETH_ALEN);
mpp_set_pinfo(mpath, mpp, pinfo);
rcu_read_unlock();
return 0;
}
static int ieee80211_get_mesh_config(struct wiphy *wiphy,
struct net_device *dev,
struct mesh_config *conf)
{
struct ieee80211_sub_if_data *sdata;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
return 0;
}
static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
{
return (mask >> (parm-1)) & 0x1;
}
static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
const struct mesh_setup *setup)
{
u8 *new_ie;
struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
struct ieee80211_sub_if_data, u.mesh);
int i;
/* allocate information elements */
new_ie = NULL;
if (setup->ie_len) {
new_ie = kmemdup(setup->ie, setup->ie_len,
GFP_KERNEL);
if (!new_ie)
return -ENOMEM;
}
ifmsh->ie_len = setup->ie_len;
ifmsh->ie = new_ie;
/* now copy the rest of the setup parameters */
ifmsh->mesh_id_len = setup->mesh_id_len;
memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
ifmsh->mesh_sp_id = setup->sync_method;
ifmsh->mesh_pp_id = setup->path_sel_proto;
ifmsh->mesh_pm_id = setup->path_metric;
ifmsh->user_mpm = setup->user_mpm;
ifmsh->mesh_auth_id = setup->auth_id;
ifmsh->security = IEEE80211_MESH_SEC_NONE;
ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs;
if (setup->is_authenticated)
ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
if (setup->is_secure)
ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
/* mcast rate setting in Mesh Node */
memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
sizeof(setup->mcast_rate));
sdata->vif.bss_conf.basic_rates = setup->basic_rates;
sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
sdata->vif.bss_conf.dtim_period = setup->dtim_period;
sdata->beacon_rate_set = false;
if (wiphy_ext_feature_isset(sdata->local->hw.wiphy,
NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
for (i = 0; i < NUM_NL80211_BANDS; i++) {
sdata->beacon_rateidx_mask[i] =
setup->beacon_rate.control[i].legacy;
if (sdata->beacon_rateidx_mask[i])
sdata->beacon_rate_set = true;
}
}
return 0;
}
static int ieee80211_update_mesh_config(struct wiphy *wiphy,
struct net_device *dev, u32 mask,
const struct mesh_config *nconf)
{
struct mesh_config *conf;
struct ieee80211_sub_if_data *sdata;
struct ieee80211_if_mesh *ifmsh;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
ifmsh = &sdata->u.mesh;
/* Set the config options which we are interested in setting */
conf = &(sdata->u.mesh.mshcfg);
if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
conf->dot11MeshTTL = nconf->dot11MeshTTL;
if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
conf->element_ttl = nconf->element_ttl;
if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
if (ifmsh->user_mpm)
return -EBUSY;
conf->auto_open_plinks = nconf->auto_open_plinks;
}
if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
conf->dot11MeshNbrOffsetMaxNeighbor =
nconf->dot11MeshNbrOffsetMaxNeighbor;
if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
conf->dot11MeshHWMPmaxPREQretries =
nconf->dot11MeshHWMPmaxPREQretries;
if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
conf->path_refresh_time = nconf->path_refresh_time;
if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
conf->min_discovery_timeout = nconf->min_discovery_timeout;
if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
conf->dot11MeshHWMPactivePathTimeout =
nconf->dot11MeshHWMPactivePathTimeout;
if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
conf->dot11MeshHWMPpreqMinInterval =
nconf->dot11MeshHWMPpreqMinInterval;
if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
conf->dot11MeshHWMPperrMinInterval =
nconf->dot11MeshHWMPperrMinInterval;
if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
mask))
conf->dot11MeshHWMPnetDiameterTraversalTime =
nconf->dot11MeshHWMPnetDiameterTraversalTime;
if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
ieee80211_mesh_root_setup(ifmsh);
}
if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
/* our current gate announcement implementation rides on root
* announcements, so require this ifmsh to also be a root node
* */
if (nconf->dot11MeshGateAnnouncementProtocol &&
!(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
ieee80211_mesh_root_setup(ifmsh);
}
conf->dot11MeshGateAnnouncementProtocol =
nconf->dot11MeshGateAnnouncementProtocol;
}
if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
conf->dot11MeshHWMPRannInterval =
nconf->dot11MeshHWMPRannInterval;
if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
/* our RSSI threshold implementation is supported only for
* devices that report signal in dBm.
*/
if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
return -EOPNOTSUPP;
conf->rssi_threshold = nconf->rssi_threshold;
}
if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
conf->ht_opmode = nconf->ht_opmode;
sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
ieee80211_link_info_change_notify(sdata, &sdata->deflink,
BSS_CHANGED_HT);
}
if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
conf->dot11MeshHWMPactivePathToRootTimeout =
nconf->dot11MeshHWMPactivePathToRootTimeout;
if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
conf->dot11MeshHWMProotInterval =
nconf->dot11MeshHWMProotInterval;
if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
conf->dot11MeshHWMPconfirmationInterval =
nconf->dot11MeshHWMPconfirmationInterval;
if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
conf->power_mode = nconf->power_mode;
ieee80211_mps_local_status_update(sdata);
}
if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
conf->dot11MeshAwakeWindowDuration =
nconf->dot11MeshAwakeWindowDuration;
if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
conf->plink_timeout = nconf->plink_timeout;
if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask))
conf->dot11MeshConnectedToMeshGate =
nconf->dot11MeshConnectedToMeshGate;
if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask))
conf->dot11MeshNolearn = nconf->dot11MeshNolearn;
if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask))
conf->dot11MeshConnectedToAuthServer =
nconf->dot11MeshConnectedToAuthServer;
ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
return 0;
}
static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
const struct mesh_config *conf,
const struct mesh_setup *setup)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_chan_req chanreq = { .oper = setup->chandef };
struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
int err;
lockdep_assert_wiphy(sdata->local->hw.wiphy);
memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
err = copy_mesh_setup(ifmsh, setup);
if (err)
return err;
sdata->control_port_over_nl80211 = setup->control_port_over_nl80211;
/* can mesh use other SMPS modes? */
sdata->deflink.smps_mode = IEEE80211_SMPS_OFF;
sdata->deflink.needed_rx_chains = sdata->local->rx_chains;
err = ieee80211_link_use_channel(&sdata->deflink, &chanreq,
IEEE80211_CHANCTX_SHARED);
if (err)
return err;
return ieee80211_start_mesh(sdata);
}
static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
lockdep_assert_wiphy(sdata->local->hw.wiphy);
ieee80211_stop_mesh(sdata);
ieee80211_link_release_channel(&sdata->deflink);
kfree(sdata->u.mesh.ie);
return 0;
}
#endif
static int ieee80211_change_bss(struct wiphy *wiphy,
struct net_device *dev,
struct bss_parameters *params)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_link_data *link;
struct ieee80211_supported_band *sband;
u64 changed = 0;
link = ieee80211_link_or_deflink(sdata, params->link_id, true);
if (IS_ERR(link))
return PTR_ERR(link);
if (!sdata_dereference(link->u.ap.beacon, sdata))
return -ENOENT;
sband = ieee80211_get_link_sband(link);
if (!sband)
return -EINVAL;
if (params->basic_rates) {
if (!ieee80211_parse_bitrates(sband,
params->basic_rates,
params->basic_rates_len,
&link->conf->basic_rates))
return -EINVAL;
changed |= BSS_CHANGED_BASIC_RATES;
ieee80211_check_rate_mask(link);
}
if (params->use_cts_prot >= 0) {
link->conf->use_cts_prot = params->use_cts_prot;
changed |= BSS_CHANGED_ERP_CTS_PROT;
}
if (params->use_short_preamble >= 0) {
link->conf->use_short_preamble = params->use_short_preamble;
changed |= BSS_CHANGED_ERP_PREAMBLE;
}
if (!link->conf->use_short_slot &&
(sband->band == NL80211_BAND_5GHZ ||
sband->band == NL80211_BAND_6GHZ)) {
link->conf->use_short_slot = true;
changed |= BSS_CHANGED_ERP_SLOT;
}
if (params->use_short_slot_time >= 0) {
link->conf->use_short_slot = params->use_short_slot_time;
changed |= BSS_CHANGED_ERP_SLOT;
}
if (params->ap_isolate >= 0) {
if (params->ap_isolate)
sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
else
sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
ieee80211_check_fast_rx_iface(sdata);
}
if (params->ht_opmode >= 0) {
link->conf->ht_operation_mode = (u16)params->ht_opmode;
changed |= BSS_CHANGED_HT;
}
if (params->p2p_ctwindow >= 0) {
link->conf->p2p_noa_attr.oppps_ctwindow &=
~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
link->conf->p2p_noa_attr.oppps_ctwindow |=
params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
changed |= BSS_CHANGED_P2P_PS;
}
if (params->p2p_opp_ps > 0) {
link->conf->p2p_noa_attr.oppps_ctwindow |=
IEEE80211_P2P_OPPPS_ENABLE_BIT;
changed |= BSS_CHANGED_P2P_PS;
} else if (params->p2p_opp_ps == 0) {
link->conf->p2p_noa_attr.oppps_ctwindow &=
~IEEE80211_P2P_OPPPS_ENABLE_BIT;
changed |= BSS_CHANGED_P2P_PS;
}
ieee80211_link_info_change_notify(sdata, link, changed);
return 0;
}
static int ieee80211_set_txq_params(struct wiphy *wiphy,
struct net_device *dev,
struct ieee80211_txq_params *params)
{
struct ieee80211_local *local = wiphy_priv(wiphy);
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_link_data *link =
ieee80211_link_or_deflink(sdata, params->link_id, true);
struct ieee80211_tx_queue_params p;
if (!local->ops->conf_tx)
return -EOPNOTSUPP;
if (local->hw.queues < IEEE80211_NUM_ACS)
return -EOPNOTSUPP;
if (IS_ERR(link))
return PTR_ERR(link);
memset(&p, 0, sizeof(p));
p.aifs = params->aifs;
p.cw_max = params->cwmax;
p.cw_min = params->cwmin;
p.txop = params->txop;
/*
* Setting tx queue params disables u-apsd because it's only
* called in master mode.
*/
p.uapsd = false;
ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac);
link->tx_conf[params->ac] = p;
if (drv_conf_tx(local, link, params->ac, &p)) {
wiphy_debug(local->hw.wiphy,
"failed to set TX queue parameters for AC %d\n",
params->ac);
return -EINVAL;
}
ieee80211_link_info_change_notify(sdata, link,
BSS_CHANGED_QOS);
return 0;
}
#ifdef CONFIG_PM
static int ieee80211_suspend(struct wiphy *wiphy,
struct cfg80211_wowlan *wowlan)
{
return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
}
static int ieee80211_resume(struct wiphy *wiphy)
{
return __ieee80211_resume(wiphy_priv(wiphy));
}
#else
#define ieee80211_suspend NULL
#define ieee80211_resume NULL
#endif
static int ieee80211_scan(struct wiphy *wiphy,
struct cfg80211_scan_request *req)
{
struct ieee80211_sub_if_data *sdata;
struct ieee80211_link_data *link;
struct ieee80211_channel *chan;
int radio_idx;
sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
switch (ieee80211_vif_type_p2p(&sdata->vif)) {
case NL80211_IFTYPE_STATION:
case NL80211_IFTYPE_ADHOC:
case NL80211_IFTYPE_MESH_POINT:
case NL80211_IFTYPE_P2P_CLIENT:
case NL80211_IFTYPE_P2P_DEVICE:
break;
case NL80211_IFTYPE_P2P_GO:
if (sdata->local->ops->hw_scan)
break;
/*
* FIXME: implement NoA while scanning in software,
* for now fall through to allow scanning only when
* beaconing hasn't been configured yet
*/
fallthrough;
case NL80211_IFTYPE_AP:
/*
* If the scan has been forced (and the driver supports
* forcing), don't care about being beaconing already.
* This will create problems to the attached stations (e.g. all
* the frames sent while scanning on other channel will be
* lost)
*/
for_each_link_data(sdata, link) {
/* if the link is not beaconing, ignore it */
if (!sdata_dereference(link->u.ap.beacon, sdata))
continue;
chan = link->conf->chanreq.oper.chan;
radio_idx = cfg80211_get_radio_idx_by_chan(wiphy, chan);
if (ieee80211_is_radio_idx_in_scan_req(wiphy, req,
radio_idx) &&
(!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
!(req->flags & NL80211_SCAN_FLAG_AP)))
return -EOPNOTSUPP;
}
break;
case NL80211_IFTYPE_NAN:
case NL80211_IFTYPE_PD:
default:
return -EOPNOTSUPP;
}
return ieee80211_request_scan(sdata, req);
}
static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
{
ieee80211_scan_cancel(wiphy_priv(wiphy));
}
static int
ieee80211_sched_scan_start(struct wiphy *wiphy,
struct net_device *dev,
struct cfg80211_sched_scan_request *req)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
if (!sdata->local->ops->sched_scan_start)
return -EOPNOTSUPP;
return ieee80211_request_sched_scan_start(sdata, req);
}
static int
ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev,
u64 reqid)
{
struct ieee80211_local *local = wiphy_priv(wiphy);
if (!local->ops->sched_scan_stop)
return -EOPNOTSUPP;
return ieee80211_request_sched_scan_stop(local);
}
static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_auth_request *req)
{
return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
}
static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_assoc_request *req)
{
return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
}
static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_deauth_request *req)
{
return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
}
static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_disassoc_request *req)
{
return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
}
static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_ibss_params *params)
{
return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
}
static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
{
return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
}
static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
struct ocb_setup *setup)
{
return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
}
static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
{
return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
}
static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
int rate[NUM_NL80211_BANDS])
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
memcpy(sdata->vif.bss_conf.mcast_rate, rate,
sizeof(int) * NUM_NL80211_BANDS);
if (ieee80211_sdata_running(sdata))
ieee80211_link_info_change_notify(sdata, &sdata->deflink,
BSS_CHANGED_MCAST_RATE);
return 0;
}
static int ieee80211_set_wiphy_params(struct wiphy *wiphy, int radio_idx,
u32 changed)
{
struct ieee80211_local *local = wiphy_priv(wiphy);
int err;
if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
ieee80211_check_fast_xmit_all(local);
err = drv_set_frag_threshold(local, radio_idx,
wiphy->frag_threshold);
if (err) {
ieee80211_check_fast_xmit_all(local);
return err;
}
}
if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
(changed & WIPHY_PARAM_DYN_ACK)) {
s16 coverage_class;
coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
wiphy->coverage_class : -1;
err = drv_set_coverage_class(local, radio_idx,
coverage_class);
if (err)
return err;
}
if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
u32 rts_threshold;
if ((radio_idx == -1) || (radio_idx >= wiphy->n_radio))
rts_threshold = wiphy->rts_threshold;
else
rts_threshold =
wiphy->radio_cfg[radio_idx].rts_threshold;
err = drv_set_rts_threshold(local, radio_idx, rts_threshold);
if (err)
return err;
}
if (changed & WIPHY_PARAM_RETRY_SHORT) {
if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
return -EINVAL;
local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
}
if (changed & WIPHY_PARAM_RETRY_LONG) {
if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
return -EINVAL;
local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
}
if (changed &
(WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
ieee80211_hw_config(local, radio_idx,
IEEE80211_CONF_CHANGE_RETRY_LIMITS);
if (changed & (WIPHY_PARAM_TXQ_LIMIT |
WIPHY_PARAM_TXQ_MEMORY_LIMIT |
WIPHY_PARAM_TXQ_QUANTUM))
ieee80211_txq_set_params(local, radio_idx);
return 0;
}
static int ieee80211_set_tx_power(struct wiphy *wiphy,
struct wireless_dev *wdev, int radio_idx,
enum nl80211_tx_power_setting type, int mbm)
{
struct ieee80211_local *local = wiphy_priv(wiphy);
struct ieee80211_sub_if_data *sdata;
enum nl80211_tx_power_setting txp_type = type;
bool update_txp_type = false;
bool has_monitor = false;
int user_power_level;
int old_power = local->user_power_level;
lockdep_assert_wiphy(local->hw.wiphy);
switch (type) {
case NL80211_TX_POWER_AUTOMATIC:
user_power_level = IEEE80211_UNSET_POWER_LEVEL;
txp_type = NL80211_TX_POWER_LIMITED;
break;
case NL80211_TX_POWER_LIMITED:
case NL80211_TX_POWER_FIXED:
if (mbm < 0 || (mbm % 100))
return -EOPNOTSUPP;
user_power_level = MBM_TO_DBM(mbm);
break;
default:
return -EINVAL;
}
if (wdev) {
sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
if (sdata->vif.type == NL80211_IFTYPE_MONITOR &&
!ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) {
if (!ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF))
return -EOPNOTSUPP;
sdata = wiphy_dereference(local->hw.wiphy,
local->monitor_sdata);
if (!sdata)
return -EOPNOTSUPP;
}
for (int link_id = 0;
link_id < ARRAY_SIZE(sdata->link);
link_id++) {
struct ieee80211_link_data *link =
wiphy_dereference(wiphy, sdata->link[link_id]);
if (!link)
continue;
link->user_power_level = user_power_level;
if (txp_type != link->conf->txpower_type) {
update_txp_type = true;
link->conf->txpower_type = txp_type;
}
ieee80211_recalc_txpower(link, update_txp_type);
}
return 0;
}
local->user_power_level = user_power_level;
list_for_each_entry(sdata, &local->interfaces, list) {
if (sdata->vif.type == NL80211_IFTYPE_MONITOR &&
!ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) {
has_monitor = true;
continue;
}
for (int link_id = 0;
link_id < ARRAY_SIZE(sdata->link);
link_id++) {
struct ieee80211_link_data *link =
wiphy_dereference(wiphy, sdata->link[link_id]);
if (!link)
continue;
link->user_power_level = local->user_power_level;
if (txp_type != link->conf->txpower_type)
update_txp_type = true;
link->conf->txpower_type = txp_type;
}
}
list_for_each_entry(sdata, &local->interfaces, list) {
if (sdata->vif.type == NL80211_IFTYPE_MONITOR &&
!ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR))
continue;
for (int link_id = 0;
link_id < ARRAY_SIZE(sdata->link);
link_id++) {
struct ieee80211_link_data *link =
wiphy_dereference(wiphy, sdata->link[link_id]);
if (!link)
continue;
ieee80211_recalc_txpower(link, update_txp_type);
}
}
if (has_monitor) {
sdata = wiphy_dereference(local->hw.wiphy,
local->monitor_sdata);
if (sdata && ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF)) {
sdata->deflink.user_power_level = local->user_power_level;
if (txp_type != sdata->vif.bss_conf.txpower_type)
update_txp_type = true;
sdata->vif.bss_conf.txpower_type = txp_type;
ieee80211_recalc_txpower(&sdata->deflink,
update_txp_type);
}
}
if (local->emulate_chanctx &&
(old_power != local->user_power_level))
ieee80211_hw_conf_chan(local);
return 0;
}
static int ieee80211_get_tx_power(struct wiphy *wiphy,
struct wireless_dev *wdev,
int radio_idx,
unsigned int link_id,
int *dbm)
{
struct ieee80211_local *local = wiphy_priv(wiphy);
struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
struct ieee80211_link_data *link_data;
if (local->ops->get_txpower &&
(sdata->flags & IEEE80211_SDATA_IN_DRIVER))
return drv_get_txpower(local, sdata, link_id, dbm);
if (local->emulate_chanctx) {
*dbm = local->hw.conf.power_level;
} else {
link_data = wiphy_dereference(wiphy, sdata->link[link_id]);
if (link_data)
*dbm = link_data->conf->txpower;
else
return -ENOLINK;
}
/* INT_MIN indicates no power level was set yet */
if (*dbm == INT_MIN)
return -EINVAL;
return 0;
}
static void ieee80211_rfkill_poll(struct wiphy *wiphy)
{
struct ieee80211_local *local = wiphy_priv(wiphy);
drv_rfkill_poll(local);
}
#ifdef CONFIG_NL80211_TESTMODE
static int ieee80211_testmode_cmd(struct wiphy *wiphy,
struct wireless_dev *wdev,
void *data, int len)
{
struct ieee80211_local *local = wiphy_priv(wiphy);
struct ieee80211_vif *vif = NULL;
if (!local->ops->testmode_cmd)
return -EOPNOTSUPP;
if (wdev) {
struct ieee80211_sub_if_data *sdata;
sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
vif = &sdata->vif;
}
return local->ops->testmode_cmd(&local->hw, vif, data, len);
}
static int ieee80211_testmode_dump(struct wiphy *wiphy,
struct sk_buff *skb,
struct netlink_callback *cb,
void *data, int len)
{
struct ieee80211_local *local = wiphy_priv(wiphy);
if (!local->ops->testmode_dump)
return -EOPNOTSUPP;
return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
}
#endif
int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
struct ieee80211_link_data *link,
enum ieee80211_smps_mode smps_mode)
{
const u8 *ap;
enum ieee80211_smps_mode old_req;
int err;
struct sta_info *sta;
bool tdls_peer_found = false;
lockdep_assert_wiphy(sdata->local->hw.wiphy);
if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
return -EINVAL;
if (!ieee80211_vif_link_active(&sdata->vif, link->link_id))
return 0;
old_req = link->u.mgd.req_smps;
link->u.mgd.req_smps = smps_mode;
/* The driver indicated that EML is enabled for the interface, which
* implies that SMPS flows towards the AP should be stopped.
*/
if (sdata->vif.driver_flags & IEEE80211_VIF_EML_ACTIVE)
return 0;
if (old_req == smps_mode &&
smps_mode != IEEE80211_SMPS_AUTOMATIC)
return 0;
/*
* If not associated, or current association is not an HT
* association, there's no need to do anything, just store
* the new value until we associate.
*/
if (!sdata->u.mgd.associated ||
link->conf->chanreq.oper.width == NL80211_CHAN_WIDTH_20_NOHT)
return 0;
ap = sdata->vif.cfg.ap_addr;
rcu_read_lock();
list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
continue;
tdls_peer_found = true;
break;
}
rcu_read_unlock();
if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
if (tdls_peer_found || !sdata->u.mgd.powersave)
smps_mode = IEEE80211_SMPS_OFF;
else
smps_mode = IEEE80211_SMPS_DYNAMIC;
}
/* send SM PS frame to AP */
err = ieee80211_send_smps_action(sdata, smps_mode,
ap, ap,
ieee80211_vif_is_mld(&sdata->vif) ?
link->link_id : -1);
if (err)
link->u.mgd.req_smps = old_req;
else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
ieee80211_teardown_tdls_peers(link);
return err;
}
static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
bool enabled, int timeout)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
unsigned int link_id;
if (sdata->vif.type != NL80211_IFTYPE_STATION)
return -EOPNOTSUPP;
if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
return -EOPNOTSUPP;
if (enabled == sdata->u.mgd.powersave &&
timeout == local->dynamic_ps_forced_timeout)
return 0;
sdata->u.mgd.powersave = enabled;
local->dynamic_ps_forced_timeout = timeout;
/* no change, but if automatic follow powersave */
for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) {
struct ieee80211_link_data *link;
link = sdata_dereference(sdata->link[link_id], sdata);
if (!link)
continue;
__ieee80211_request_smps_mgd(sdata, link,
link->u.mgd.req_smps);
}
if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
ieee80211_hw_config(local, -1, IEEE80211_CONF_CHANGE_PS);
ieee80211_recalc_ps(local);
ieee80211_recalc_ps_vif(sdata);
ieee80211_check_fast_rx_iface(sdata);
return 0;
}
static void ieee80211_set_cqm_rssi_link(struct ieee80211_sub_if_data *sdata,
struct ieee80211_link_data *link,
s32 rssi_thold, u32 rssi_hyst,
s32 rssi_low, s32 rssi_high)
{
struct ieee80211_bss_conf *conf;
if (!link || !link->conf)
return;
conf = link->conf;
if (rssi_thold && rssi_hyst &&
rssi_thold == conf->cqm_rssi_thold &&
rssi_hyst == conf->cqm_rssi_hyst)
return;
conf->cqm_rssi_thold = rssi_thold;
conf->cqm_rssi_hyst = rssi_hyst;
conf->cqm_rssi_low = rssi_low;
conf->cqm_rssi_high = rssi_high;
link->u.mgd.last_cqm_event_signal = 0;
if (!ieee80211_vif_link_active(&sdata->vif, link->link_id))
return;
if (sdata->u.mgd.associated &&
(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
ieee80211_link_info_change_notify(sdata, link, BSS_CHANGED_CQM);
}
static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
struct net_device *dev,
s32 rssi_thold, u32 rssi_hyst)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_vif *vif = &sdata->vif;
int link_id;
if (vif->driver_flags & IEEE80211_VIF_BEACON_FILTER &&
!(vif->driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
return -EOPNOTSUPP;
/* For MLD, handle CQM change on all the active links */
for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) {
struct ieee80211_link_data *link =
sdata_dereference(sdata->link[link_id], sdata);
ieee80211_set_cqm_rssi_link(sdata, link, rssi_thold, rssi_hyst,
0, 0);
}
return 0;
}
static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy,
struct net_device *dev,
s32 rssi_low, s32 rssi_high)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_vif *vif = &sdata->vif;
int link_id;
if (vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)
return -EOPNOTSUPP;
/* For MLD, handle CQM change on all the active links */
for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) {
struct ieee80211_link_data *link =
sdata_dereference(sdata->link[link_id], sdata);
ieee80211_set_cqm_rssi_link(sdata, link, 0, 0,
rssi_low, rssi_high);
}
return 0;
}
static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
struct net_device *dev,
unsigned int link_id,
const u8 *addr,
const struct cfg80211_bitrate_mask *mask)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
int i, ret;
if (!ieee80211_sdata_running(sdata))
return -ENETDOWN;
/*
* If active validate the setting and reject it if it doesn't leave
* at least one basic rate usable, since we really have to be able
* to send something, and if we're an AP we have to be able to do
* so at a basic rate so that all clients can receive it.
*/
if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) &&
sdata->vif.bss_conf.chanreq.oper.chan) {
u32 basic_rates = sdata->vif.bss_conf.basic_rates;
enum nl80211_band band;
band = sdata->vif.bss_conf.chanreq.oper.chan->band;
if (!(mask->control[band].legacy & basic_rates))
return -EINVAL;
}
if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
ret = drv_set_bitrate_mask(local, sdata, mask);
if (ret)
return ret;
}
for (i = 0; i < NUM_NL80211_BANDS; i++) {
struct ieee80211_supported_band *sband = wiphy->bands[i];
int j;
sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
sizeof(mask->control[i].ht_mcs));
memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
mask->control[i].vht_mcs,
sizeof(mask->control[i].vht_mcs));
sdata->rc_has_mcs_mask[i] = false;
sdata->rc_has_vht_mcs_mask[i] = false;
if (!sband)
continue;
for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) {
sdata->rc_has_mcs_mask[i] = true;
break;
}
}
for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) {
sdata->rc_has_vht_mcs_mask[i] = true;
break;
}
}
}
return 0;
}
static bool ieee80211_is_scan_ongoing(struct wiphy *wiphy,
struct ieee80211_local *local,
struct cfg80211_chan_def *chandef)
{
struct cfg80211_scan_request *scan_req;
int chan_radio_idx, req_radio_idx;
struct ieee80211_roc_work *roc;
if (list_empty(&local->roc_list) && !local->scanning)
return false;
req_radio_idx = cfg80211_get_radio_idx_by_chan(wiphy, chandef->chan);
if (local->scanning) {
scan_req = wiphy_dereference(wiphy, local->scan_req);
/*
* Scan is going on but info is not there. Should not happen
* but if it does, let's not take risk and assume we can't use
* the hw hence return true
*/
if (WARN_ON_ONCE(!scan_req))
return true;
return ieee80211_is_radio_idx_in_scan_req(wiphy, scan_req,
req_radio_idx);
}
list_for_each_entry(roc, &local->roc_list, list) {
chan_radio_idx = cfg80211_get_radio_idx_by_chan(wiphy,
roc->chan);
if (chan_radio_idx == req_radio_idx)
return true;
}
return false;
}
static int ieee80211_start_radar_detection(struct wiphy *wiphy,
struct net_device *dev,
struct cfg80211_chan_def *chandef,
u32 cac_time_ms, int link_id)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_chan_req chanreq = { .oper = *chandef };
struct ieee80211_local *local = sdata->local;
struct ieee80211_link_data *link_data;
int err;
lockdep_assert_wiphy(local->hw.wiphy);
if (ieee80211_is_scan_ongoing(wiphy, local, chandef))
return -EBUSY;
link_data = sdata_dereference(sdata->link[link_id], sdata);
if (!link_data)
return -ENOLINK;
/* whatever, but channel contexts should not complain about that one */
link_data->smps_mode = IEEE80211_SMPS_OFF;
link_data->needed_rx_chains = local->rx_chains;
err = ieee80211_link_use_channel(link_data, &chanreq,
IEEE80211_CHANCTX_SHARED);
if (err)
return err;
wiphy_hrtimer_work_queue(wiphy, &link_data->dfs_cac_timer_work,
ms_to_ktime(cac_time_ms));
return 0;
}
static void ieee80211_end_cac(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_local *local = sdata->local;
struct ieee80211_link_data *link_data;
lockdep_assert_wiphy(local->hw.wiphy);
list_for_each_entry(sdata, &local->interfaces, list) {
link_data = sdata_dereference(sdata->link[link_id], sdata);
if (!link_data)
continue;
wiphy_hrtimer_work_cancel(wiphy,
&link_data->dfs_cac_timer_work);
if (sdata->wdev.links[link_id].cac_started) {
ieee80211_link_release_channel(link_data);
sdata->wdev.links[link_id].cac_started = false;
}
}
}
static struct cfg80211_beacon_data *
cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
{
struct cfg80211_beacon_data *new_beacon;
u8 *pos;
int len;
len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
beacon->proberesp_ies_len + beacon->assocresp_ies_len +
beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len;
if (beacon->mbssid_ies)
len += ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies,
beacon->rnr_ies,
beacon->mbssid_ies->cnt);
new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
if (!new_beacon)
return NULL;
if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) {
new_beacon->mbssid_ies =
kzalloc_flex(*new_beacon->mbssid_ies, elem,
beacon->mbssid_ies->cnt);
if (!new_beacon->mbssid_ies) {
kfree(new_beacon);
return NULL;
}
if (beacon->rnr_ies && beacon->rnr_ies->cnt) {
new_beacon->rnr_ies =
kzalloc_flex(*new_beacon->rnr_ies, elem,
beacon->rnr_ies->cnt);
if (!new_beacon->rnr_ies) {
kfree(new_beacon->mbssid_ies);
kfree(new_beacon);
return NULL;
}
}
}
pos = (u8 *)(new_beacon + 1);
if (beacon->head_len) {
new_beacon->head_len = beacon->head_len;
new_beacon->head = pos;
memcpy(pos, beacon->head, beacon->head_len);
pos += beacon->head_len;
}
if (beacon->tail_len) {
new_beacon->tail_len = beacon->tail_len;
new_beacon->tail = pos;
memcpy(pos, beacon->tail, beacon->tail_len);
pos += beacon->tail_len;
}
if (beacon->beacon_ies_len) {
new_beacon->beacon_ies_len = beacon->beacon_ies_len;
new_beacon->beacon_ies = pos;
memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
pos += beacon->beacon_ies_len;
}
if (beacon->proberesp_ies_len) {
new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
new_beacon->proberesp_ies = pos;
memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
pos += beacon->proberesp_ies_len;
}
if (beacon->assocresp_ies_len) {
new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
new_beacon->assocresp_ies = pos;
memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
pos += beacon->assocresp_ies_len;
}
if (beacon->probe_resp_len) {
new_beacon->probe_resp_len = beacon->probe_resp_len;
new_beacon->probe_resp = pos;
memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
pos += beacon->probe_resp_len;
}
if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) {
pos += ieee80211_copy_mbssid_beacon(pos,
new_beacon->mbssid_ies,
beacon->mbssid_ies);
if (beacon->rnr_ies && beacon->rnr_ies->cnt)
pos += ieee80211_copy_rnr_beacon(pos,
new_beacon->rnr_ies,
beacon->rnr_ies);
}
/* might copy -1, meaning no changes requested */
new_beacon->ftm_responder = beacon->ftm_responder;
if (beacon->lci) {
new_beacon->lci_len = beacon->lci_len;
new_beacon->lci = pos;
memcpy(pos, beacon->lci, beacon->lci_len);
pos += beacon->lci_len;
}
if (beacon->civicloc) {
new_beacon->civicloc_len = beacon->civicloc_len;
new_beacon->civicloc = pos;
memcpy(pos, beacon->civicloc, beacon->civicloc_len);
pos += beacon->civicloc_len;
}
return new_beacon;
}
void ieee80211_csa_finish(struct ieee80211_vif *vif, unsigned int link_id)
{
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
struct ieee80211_local *local = sdata->local;
struct ieee80211_bss_conf *tx_bss_conf;
struct ieee80211_link_data *link_data;
if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS))
return;
rcu_read_lock();
link_data = rcu_dereference(sdata->link[link_id]);
if (WARN_ON(!link_data)) {
rcu_read_unlock();
return;
}
tx_bss_conf = rcu_dereference(link_data->conf->tx_bss_conf);
if (tx_bss_conf == link_data->conf) {
/* Trigger ieee80211_csa_finish() on the non-transmitting
* interfaces when channel switch is received on
* transmitting interface
*/
struct ieee80211_link_data *iter;
for_each_sdata_link_rcu(local, iter) {
if (iter->sdata == sdata ||
rcu_access_pointer(iter->conf->tx_bss_conf) != tx_bss_conf)
continue;
wiphy_work_queue(iter->sdata->local->hw.wiphy,
&iter->csa.finalize_work);
}
}
wiphy_work_queue(local->hw.wiphy, &link_data->csa.finalize_work);
rcu_read_unlock();
}
EXPORT_SYMBOL(ieee80211_csa_finish);
void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif)
{
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct ieee80211_local *local = sdata->local;
sdata_info(sdata, "channel switch failed, disconnecting\n");
wiphy_work_queue(local->hw.wiphy, &ifmgd->csa_connection_drop_work);
}
EXPORT_SYMBOL(ieee80211_channel_switch_disconnect);
static int ieee80211_set_after_csa_beacon(struct ieee80211_link_data *link_data,
u64 *changed)
{
struct ieee80211_sub_if_data *sdata = link_data->sdata;
int err;
switch (sdata->vif.type) {
case NL80211_IFTYPE_AP:
if (!link_data->u.ap.next_beacon)
return -EINVAL;
err = ieee80211_assign_beacon(sdata, link_data,
link_data->u.ap.next_beacon,
NULL, NULL, changed);
ieee80211_free_next_beacon(link_data);
if (err < 0)
return err;
break;
case NL80211_IFTYPE_ADHOC:
err = ieee80211_ibss_finish_csa(sdata, changed);
if (err < 0)
return err;
break;
#ifdef CONFIG_MAC80211_MESH
case NL80211_IFTYPE_MESH_POINT:
err = ieee80211_mesh_finish_csa(sdata, changed);
if (err < 0)
return err;
break;
#endif
default:
WARN_ON(1);
return -EINVAL;
}
return 0;
}
static int __ieee80211_csa_finalize(struct ieee80211_link_data *link_data)
{
struct ieee80211_sub_if_data *sdata = link_data->sdata;
struct ieee80211_local *local = sdata->local;
struct ieee80211_bss_conf *link_conf = link_data->conf;
u64 changed = 0;
int err;
lockdep_assert_wiphy(local->hw.wiphy);
/*
* using reservation isn't immediate as it may be deferred until later
* with multi-vif. once reservation is complete it will re-schedule the
* work with no reserved_chanctx so verify chandef to check if it
* completed successfully
*/
if (link_data->reserved_chanctx) {
/*
* with multi-vif csa driver may call ieee80211_csa_finish()
* many times while waiting for other interfaces to use their
* reservations
*/
if (link_data->reserved_ready)
return 0;
return ieee80211_link_use_reserved_context(link_data);
}
if (!cfg80211_chandef_identical(&link_conf->chanreq.oper,
&link_data->csa.chanreq.oper))
return -EINVAL;
link_conf->csa_active = false;
err = ieee80211_set_after_csa_beacon(link_data, &changed);
if (err)
return err;
ieee80211_link_info_change_notify(sdata, link_data, changed);
if (sdata->vif.type == NL80211_IFTYPE_AP)
ieee80211_uhr_disable_dbe_all_stas(link_data);
ieee80211_vif_unblock_queues_csa(sdata);
err = drv_post_channel_switch(link_data);
if (err)
return err;
cfg80211_ch_switch_notify(sdata->dev, &link_data->csa.chanreq.oper,
link_data->link_id);
return 0;
}
static void ieee80211_csa_finalize(struct ieee80211_link_data *link_data)
{
struct ieee80211_sub_if_data *sdata = link_data->sdata;
int link_id = -1;
if (__ieee80211_csa_finalize(link_data)) {
sdata_info(sdata, "failed to finalize CSA on link %d, disconnecting\n",
link_data->link_id);
if (sdata->vif.type == NL80211_IFTYPE_AP ||
sdata->vif.type == NL80211_IFTYPE_P2P_GO)
/*
* link_id is expected only for AP/P2P_GO type
* currently
*/
link_id = link_data->link_id;
cfg80211_stop_link(sdata->local->hw.wiphy, &sdata->wdev,
link_id, GFP_KERNEL);
}
}
void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *work)
{
struct ieee80211_link_data *link =
container_of(work, struct ieee80211_link_data, csa.finalize_work);
struct ieee80211_sub_if_data *sdata = link->sdata;
struct ieee80211_local *local = sdata->local;
lockdep_assert_wiphy(local->hw.wiphy);
/* AP might have been stopped while waiting for the lock. */
if (!link->conf->csa_active)
return;
if (!ieee80211_sdata_running(sdata))
return;
ieee80211_csa_finalize(link);
}
static int ieee80211_set_csa_beacon(struct ieee80211_link_data *link_data,
struct cfg80211_csa_settings *params,
u64 *changed)
{
struct ieee80211_sub_if_data *sdata = link_data->sdata;
struct ieee80211_csa_settings csa = {};
int err;
switch (sdata->vif.type) {
case NL80211_IFTYPE_AP:
link_data->u.ap.next_beacon =
cfg80211_beacon_dup(&params->beacon_after);
if (!link_data->u.ap.next_beacon)
return -ENOMEM;
/*
* With a count of 0, we don't have to wait for any
* TBTT before switching, so complete the CSA
* immediately. In theory, with a count == 1 we
* should delay the switch until just before the next
* TBTT, but that would complicate things so we switch
* immediately too. If we would delay the switch
* until the next TBTT, we would have to set the probe
* response here.
*
* TODO: A channel switch with count <= 1 without
* sending a CSA action frame is kind of useless,
* because the clients won't know we're changing
* channels. The action frame must be implemented
* either here or in the userspace.
*/
if (params->count <= 1)
break;
if ((params->n_counter_offsets_beacon >
IEEE80211_MAX_CNTDWN_COUNTERS_NUM) ||
(params->n_counter_offsets_presp >
IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) {
ieee80211_free_next_beacon(link_data);
return -EINVAL;
}
csa.counter_offsets_beacon = params->counter_offsets_beacon;
csa.counter_offsets_presp = params->counter_offsets_presp;
csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
csa.count = params->count;
err = ieee80211_assign_beacon(sdata, link_data,
&params->beacon_csa, &csa,
NULL, changed);
if (err < 0) {
ieee80211_free_next_beacon(link_data);
return err;
}
break;
case NL80211_IFTYPE_ADHOC:
if (!sdata->vif.cfg.ibss_joined)
return -EINVAL;
if (params->chandef.width != sdata->u.ibss.chandef.width)
return -EINVAL;
switch (params->chandef.width) {
case NL80211_CHAN_WIDTH_40:
if (cfg80211_get_chandef_type(&params->chandef) !=
cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
return -EINVAL;
break;
case NL80211_CHAN_WIDTH_20_NOHT:
case NL80211_CHAN_WIDTH_20:
break;
default:
return -EINVAL;
}
/* changes into another band are not supported */
if (sdata->u.ibss.chandef.chan->band !=
params->chandef.chan->band)
return -EINVAL;
/* see comments in the NL80211_IFTYPE_AP block */
if (params->count > 1) {
err = ieee80211_ibss_csa_beacon(sdata, params, changed);
if (err < 0)
return err;
}
ieee80211_send_action_csa(sdata, params);
break;
#ifdef CONFIG_MAC80211_MESH
case NL80211_IFTYPE_MESH_POINT: {
struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
/* changes into another band are not supported */
if (sdata->vif.bss_conf.chanreq.oper.chan->band !=
params->chandef.chan->band)
return -EINVAL;
if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
if (!ifmsh->pre_value)
ifmsh->pre_value = 1;
else
ifmsh->pre_value++;
}
/* see comments in the NL80211_IFTYPE_AP block */
if (params->count > 1) {
err = ieee80211_mesh_csa_beacon(sdata, params, changed);
if (err < 0) {
ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
return err;
}
}
if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
ieee80211_send_action_csa(sdata, params);
break;
}
#endif
default:
return -EOPNOTSUPP;
}
return 0;
}
static void ieee80211_color_change_abort(struct ieee80211_link_data *link)
{
link->conf->color_change_active = false;
ieee80211_free_next_beacon(link);
cfg80211_color_change_aborted_notify(link->sdata->dev, link->link_id);
}
static int
__ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_csa_settings *params)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_chan_req chanreq = {
.oper = params->chandef,
.require_npca = true,
};
struct ieee80211_local *local = sdata->local;
struct ieee80211_channel_switch ch_switch = {
.link_id = params->link_id,
};
struct ieee80211_chanctx_conf *conf;
struct ieee80211_chanctx *chanctx;
struct ieee80211_bss_conf *link_conf;
struct ieee80211_link_data *link_data;
u64 changed = 0;
u8 link_id = params->link_id;
int err;
lockdep_assert_wiphy(local->hw.wiphy);
if (ieee80211_is_scan_ongoing(wiphy, local, &params->chandef))
return -EBUSY;
if (sdata->wdev.links[link_id].cac_started)
return -EBUSY;
if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS))
return -EINVAL;
link_data = wiphy_dereference(wiphy, sdata->link[link_id]);
if (!link_data)
return -ENOLINK;
link_conf = link_data->conf;
if (chanreq.oper.punctured && !link_conf->eht_support)
return -EINVAL;
/* don't allow another channel switch if one is already active. */
if (link_conf->csa_active)
return -EBUSY;
conf = wiphy_dereference(wiphy, link_conf->chanctx_conf);
if (!conf) {
err = -EBUSY;
goto out;
}
if (params->chandef.chan->freq_offset) {
/* this may work, but is untested */
err = -EOPNOTSUPP;
goto out;
}
err = ieee80211_set_unsol_bcast_probe_resp(sdata,
&params->unsol_bcast_probe_resp,
link_data, link_conf, &changed);
if (err)
goto out;
chanctx = container_of(conf, struct ieee80211_chanctx, conf);
ch_switch.timestamp = 0;
ch_switch.device_timestamp = 0;
ch_switch.block_tx = params->block_tx;
ch_switch.chandef = chanreq.oper;
ch_switch.count = params->count;
err = drv_pre_channel_switch(sdata, &ch_switch);
if (err)
goto out;
err = ieee80211_link_reserve_chanctx(link_data, &chanreq,
chanctx->mode,
params->radar_required);
if (err)
goto out;
/* if reservation is invalid then this will fail */
err = ieee80211_check_combinations(sdata, NULL, 0, 0, -1);
if (err) {
ieee80211_link_unreserve_chanctx(link_data);
goto out;
}
/* if there is a color change in progress, abort it */
if (link_conf->color_change_active)
ieee80211_color_change_abort(link_data);
err = ieee80211_set_csa_beacon(link_data, params, &changed);
if (err) {
ieee80211_link_unreserve_chanctx(link_data);
goto out;
}
link_data->csa.chanreq = chanreq;
link_conf->csa_active = true;
if (params->block_tx)
ieee80211_vif_block_queues_csa(sdata);
cfg80211_ch_switch_started_notify(sdata->dev,
&link_data->csa.chanreq.oper, link_id,
params->count, params->block_tx);
if (changed) {
ieee80211_link_info_change_notify(sdata, link_data, changed);
drv_channel_switch_beacon(sdata, &link_data->csa.chanreq.oper);
} else {
/* if the beacon didn't change, we can finalize immediately */
ieee80211_csa_finalize(link_data);
}
out:
return err;
}
int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_csa_settings *params)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_local *local = sdata->local;
lockdep_assert_wiphy(local->hw.wiphy);
return __ieee80211_channel_switch(wiphy, dev, params);
}
u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
{
lockdep_assert_wiphy(local->hw.wiphy);
local->roc_cookie_counter++;
/* wow, you wrapped 64 bits ... more likely a bug */
if (WARN_ON(local->roc_cookie_counter == 0))
local->roc_cookie_counter++;
return local->roc_cookie_counter;
}
int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
u64 *cookie, gfp_t gfp)
{
unsigned long spin_flags;
struct sk_buff *ack_skb;
int id;
ack_skb = skb_copy(skb, gfp);
if (!ack_skb)
return -ENOMEM;
spin_lock_irqsave(&local->ack_status_lock, spin_flags);
id = idr_alloc(&local->ack_status_frames, ack_skb,
1, 0x2000, GFP_ATOMIC);
spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
if (id < 0) {
kfree_skb(ack_skb);
return -ENOMEM;
}
IEEE80211_SKB_CB(skb)->status_data_idr = 1;
IEEE80211_SKB_CB(skb)->status_data = id;
*cookie = ieee80211_mgmt_tx_cookie(local);
IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
return 0;
}
static void
ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy,
struct wireless_dev *wdev,
struct mgmt_frame_regs *upd)
{
struct ieee80211_local *local = wiphy_priv(wiphy);
struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4);
u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4);
bool global_change, intf_change;
global_change =
(local->probe_req_reg != !!(upd->global_stypes & preq_mask)) ||
(local->rx_mcast_action_reg !=
!!(upd->global_mcast_stypes & action_mask));
local->probe_req_reg = upd->global_stypes & preq_mask;
local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask;
intf_change = (sdata->vif.probe_req_reg !=
!!(upd->interface_stypes & preq_mask)) ||
(sdata->vif.rx_mcast_action_reg !=
!!(upd->interface_mcast_stypes & action_mask));
sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask;
sdata->vif.rx_mcast_action_reg =
upd->interface_mcast_stypes & action_mask;
if (!local->open_count)
return;
if (intf_change && ieee80211_sdata_running(sdata))
drv_config_iface_filter(local, sdata,
sdata->vif.probe_req_reg ?
FIF_PROBE_REQ : 0,
FIF_PROBE_REQ);
if (global_change)
ieee80211_configure_filter(local);
}
static int ieee80211_set_antenna(struct wiphy *wiphy, int radio_idx,
u32 tx_ant, u32 rx_ant)
{
struct ieee80211_local *local = wiphy_priv(wiphy);
int ret;
if (local->started)
return -EOPNOTSUPP;
ret = drv_set_antenna(local, tx_ant, rx_ant);
if (ret)
return ret;
local->rx_chains = hweight8(rx_ant);
return 0;
}
static int ieee80211_get_antenna(struct wiphy *wiphy, int radio_idx,
u32 *tx_ant, u32 *rx_ant)
{
struct ieee80211_local *local = wiphy_priv(wiphy);
return drv_get_antenna(local, radio_idx, tx_ant, rx_ant);
}
static int ieee80211_set_rekey_data(struct wiphy *wiphy,
struct net_device *dev,
struct cfg80211_gtk_rekey_data *data)
{
struct ieee80211_local *local = wiphy_priv(wiphy);
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
if (!local->ops->set_rekey_data)
return -EOPNOTSUPP;
drv_set_rekey_data(local, sdata, data);
return 0;
}
static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
const u8 *peer, u64 *cookie)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_local *local = sdata->local;
struct ieee80211_qos_hdr *nullfunc;
struct sk_buff *skb;
int size = sizeof(*nullfunc);
__le16 fc;
bool qos;
struct ieee80211_tx_info *info;
struct sta_info *sta;
struct ieee80211_chanctx_conf *chanctx_conf;
struct ieee80211_bss_conf *conf;
enum nl80211_band band;
u8 link_id;
int ret;
/* the lock is needed to assign the cookie later */
lockdep_assert_wiphy(local->hw.wiphy);
rcu_read_lock();
sta = sta_info_get_bss(sdata, peer);
if (!sta) {
ret = -ENOLINK;
goto unlock;
}
qos = sta->sta.wme;
if (ieee80211_vif_is_mld(&sdata->vif)) {
if (sta->sta.mlo) {
link_id = IEEE80211_LINK_UNSPECIFIED;
} else {
/*
* For non-MLO clients connected to an AP MLD, band
* information is not used; instead, sta->deflink is
* used to send packets.
*/
link_id = sta->deflink.link_id;
conf = rcu_dereference(sdata->vif.link_conf[link_id]);
if (unlikely(!conf)) {
ret = -ENOLINK;
goto unlock;
}
}
/* MLD transmissions must not rely on the band */
band = 0;
} else {
chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
if (WARN_ON(!chanctx_conf)) {
ret = -EINVAL;
goto unlock;
}
band = chanctx_conf->def.chan->band;
link_id = 0;
}
if (qos) {
fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
IEEE80211_STYPE_QOS_NULLFUNC |
IEEE80211_FCTL_FROMDS);
} else {
size -= 2;
fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
IEEE80211_STYPE_NULLFUNC |
IEEE80211_FCTL_FROMDS);
}
skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
if (!skb) {
ret = -ENOMEM;
goto unlock;
}
skb->dev = dev;
skb_reserve(skb, local->hw.extra_tx_headroom);
nullfunc = skb_put(skb, size);
nullfunc->frame_control = fc;
nullfunc->duration_id = 0;
memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
if (ieee80211_vif_is_mld(&sdata->vif) && !sta->sta.mlo) {
memcpy(nullfunc->addr2, conf->addr, ETH_ALEN);
memcpy(nullfunc->addr3, conf->addr, ETH_ALEN);
} else {
memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
}
nullfunc->seq_ctrl = 0;
info = IEEE80211_SKB_CB(skb);
info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
IEEE80211_TX_INTFL_NL80211_FRAME_TX;
info->band = band;
info->control.flags |= u32_encode_bits(link_id,
IEEE80211_TX_CTRL_MLO_LINK);
skb_set_queue_mapping(skb, IEEE80211_AC_VO);
skb->priority = 7;
if (qos)
nullfunc->qos_ctrl = cpu_to_le16(7);
ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
if (ret) {
kfree_skb(skb);
goto unlock;
}
local_bh_disable();
ieee80211_xmit(sdata, sta, skb);
local_bh_enable();
ret = 0;
unlock:
rcu_read_unlock();
return ret;
}
static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
struct wireless_dev *wdev,
unsigned int link_id,
struct cfg80211_chan_def *chandef)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
struct ieee80211_local *local = wiphy_priv(wiphy);
struct ieee80211_chanctx_conf *chanctx_conf;
struct ieee80211_link_data *link;
int ret = -ENODATA;
rcu_read_lock();
link = rcu_dereference(sdata->link[link_id]);
if (!link) {
ret = -ENOLINK;
goto out;
}
chanctx_conf = rcu_dereference(link->conf->chanctx_conf);
if (chanctx_conf) {
*chandef = link->conf->chanreq.oper;
ret = 0;
} else if (local->open_count > 0 &&
local->open_count == local->virt_monitors &&
sdata->vif.type == NL80211_IFTYPE_MONITOR) {
*chandef = local->monitor_chanreq.oper;
ret = 0;
}
out:
rcu_read_unlock();
return ret;
}
#ifdef CONFIG_PM
static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
{
drv_set_wakeup(wiphy_priv(wiphy), enabled);
}
#endif
static int ieee80211_set_qos_map(struct wiphy *wiphy,
struct net_device *dev,
struct cfg80211_qos_map *qos_map)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct mac80211_qos_map *new_qos_map, *old_qos_map;
if (qos_map) {
new_qos_map = kzalloc_obj(*new_qos_map);
if (!new_qos_map)
return -ENOMEM;
memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
} else {
/* A NULL qos_map was passed to disable QoS mapping */
new_qos_map = NULL;
}
old_qos_map = sdata_dereference(sdata->qos_map, sdata);
rcu_assign_pointer(sdata->qos_map, new_qos_map);
if (old_qos_map)
kfree_rcu(old_qos_map, rcu_head);
return 0;
}
static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
struct net_device *dev,
unsigned int link_id,
struct cfg80211_chan_def *chandef)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_link_data *link;
struct ieee80211_chan_req chanreq = {
.oper = *chandef,
.require_npca = true,
};
int ret;
u64 changed = 0;
link = sdata_dereference(sdata->link[link_id], sdata);
ret = ieee80211_link_change_chanreq(link, &chanreq, &changed);
if (ret == 0)
ieee80211_link_info_change_notify(sdata, link, changed);
return ret;
}
static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
u8 tsid, const u8 *peer, u8 up,
u16 admitted_time)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
int ac = ieee802_1d_to_ac[up];
if (sdata->vif.type != NL80211_IFTYPE_STATION)
return -EOPNOTSUPP;
if (!(sdata->wmm_acm & BIT(up)))
return -EINVAL;
if (ifmgd->tx_tspec[ac].admitted_time)
return -EBUSY;
if (admitted_time) {
ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
ifmgd->tx_tspec[ac].tsid = tsid;
ifmgd->tx_tspec[ac].up = up;
}
return 0;
}
static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
u8 tsid, const u8 *peer)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct ieee80211_local *local = wiphy_priv(wiphy);
int ac;
for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
/* skip unused entries */
if (!tx_tspec->admitted_time)
continue;
if (tx_tspec->tsid != tsid)
continue;
/* due to this new packets will be reassigned to non-ACM ACs */
tx_tspec->up = -1;
/* Make sure that all packets have been sent to avoid to
* restore the QoS params on packets that are still on the
* queues.
*/
synchronize_net();
ieee80211_flush_queues(local, sdata, false);
/* restore the normal QoS parameters
* (unconditionally to avoid races)
*/
tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
tx_tspec->downgraded = false;
ieee80211_sta_handle_tspec_ac_params(sdata);
/* finally clear all the data */
memset(tx_tspec, 0, sizeof(*tx_tspec));
return 0;
}
return -ENOENT;
}
void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
u8 inst_id,
enum nl80211_nan_func_term_reason reason,
gfp_t gfp)
{
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
struct cfg80211_nan_func *func;
u64 cookie;
if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
return;
if (WARN_ON(sdata->local->hw.wiphy->nan_capa.flags &
WIPHY_NAN_FLAGS_USERSPACE_DE))
return;
spin_lock_bh(&sdata->u.nan.de.func_lock);
func = idr_find(&sdata->u.nan.de.function_inst_ids, inst_id);
if (WARN_ON(!func)) {
spin_unlock_bh(&sdata->u.nan.de.func_lock);
return;
}
cookie = func->cookie;
idr_remove(&sdata->u.nan.de.function_inst_ids, inst_id);
spin_unlock_bh(&sdata->u.nan.de.func_lock);
cfg80211_free_nan_func(func);
cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id,
reason, cookie, gfp);
}
EXPORT_SYMBOL(ieee80211_nan_func_terminated);
void ieee80211_nan_func_match(struct ieee80211_vif *vif,
struct cfg80211_nan_match_params *match,
gfp_t gfp)
{
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
struct cfg80211_nan_func *func;
if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
return;
if (WARN_ON(sdata->local->hw.wiphy->nan_capa.flags &
WIPHY_NAN_FLAGS_USERSPACE_DE))
return;
spin_lock_bh(&sdata->u.nan.de.func_lock);
func = idr_find(&sdata->u.nan.de.function_inst_ids, match->inst_id);
if (WARN_ON(!func)) {
spin_unlock_bh(&sdata->u.nan.de.func_lock);
return;
}
match->cookie = func->cookie;
spin_unlock_bh(&sdata->u.nan.de.func_lock);
cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp);
}
EXPORT_SYMBOL(ieee80211_nan_func_match);
void ieee80211_nan_cluster_joined(struct ieee80211_vif *vif,
const u8 *cluster_id, bool new_cluster,
gfp_t gfp)
{
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
return;
if (WARN_ON(!sdata->u.nan.started))
return;
ether_addr_copy(sdata->u.nan.conf.cluster_id, cluster_id);
cfg80211_nan_cluster_joined(ieee80211_vif_to_wdev(vif), cluster_id,
new_cluster, gfp);
}
EXPORT_SYMBOL(ieee80211_nan_cluster_joined);
static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy,
struct net_device *dev,
const bool enabled)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
sdata->u.ap.multicast_to_unicast = enabled;
return 0;
}
void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
struct txq_info *txqi)
{
if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) {
txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES);
txqstats->backlog_bytes = txqi->tin.backlog_bytes;
}
if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) {
txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS);
txqstats->backlog_packets = txqi->tin.backlog_packets;
}
if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) {
txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS);
txqstats->flows = txqi->tin.flows;
}
if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) {
txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS);
txqstats->drops = txqi->cstats.drop_count;
}
if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) {
txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS);
txqstats->ecn_marks = txqi->cstats.ecn_mark;
}
if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) {
txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT);
txqstats->overlimit = txqi->tin.overlimit;
}
if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) {
txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS);
txqstats->collisions = txqi->tin.collisions;
}
if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) {
txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES);
txqstats->tx_bytes = txqi->tin.tx_bytes;
}
if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) {
txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS);
txqstats->tx_packets = txqi->tin.tx_packets;
}
}
static int ieee80211_get_txq_stats(struct wiphy *wiphy,
struct wireless_dev *wdev,
struct cfg80211_txq_stats *txqstats)
{
struct ieee80211_local *local = wiphy_priv(wiphy);
struct ieee80211_sub_if_data *sdata;
int ret = 0;
spin_lock_bh(&local->fq.lock);
if (wdev) {
sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
if (!sdata->vif.txq) {
ret = 1;
goto out;
}
ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq));
} else {
/* phy stats */
txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) |
BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) |
BIT(NL80211_TXQ_STATS_OVERLIMIT) |
BIT(NL80211_TXQ_STATS_OVERMEMORY) |
BIT(NL80211_TXQ_STATS_COLLISIONS) |
BIT(NL80211_TXQ_STATS_MAX_FLOWS);
txqstats->backlog_packets = local->fq.backlog;
txqstats->backlog_bytes = local->fq.memory_usage;
txqstats->overlimit = local->fq.overlimit;
txqstats->overmemory = local->fq.overmemory;
txqstats->collisions = local->fq.collisions;
txqstats->max_flows = local->fq.flows_cnt;
}
out:
spin_unlock_bh(&local->fq.lock);
return ret;
}
static int
ieee80211_get_ftm_responder_stats(struct wiphy *wiphy,
struct net_device *dev,
struct cfg80211_ftm_responder_stats *ftm_stats)
{
struct ieee80211_local *local = wiphy_priv(wiphy);
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
return drv_get_ftm_responder_stats(local, sdata, ftm_stats);
}
static int
ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
struct cfg80211_pmsr_request *request)
{
struct ieee80211_local *local = wiphy_priv(wiphy);
struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
return drv_start_pmsr(local, sdata, request);
}
static void
ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
struct cfg80211_pmsr_request *request)
{
struct ieee80211_local *local = wiphy_priv(wiphy);
struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
return drv_abort_pmsr(local, sdata, request);
}
static int ieee80211_set_tid_config(struct wiphy *wiphy,
struct net_device *dev,
struct cfg80211_tid_config *tid_conf)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct sta_info *sta;
lockdep_assert_wiphy(sdata->local->hw.wiphy);
if (!sdata->local->ops->set_tid_config)
return -EOPNOTSUPP;
if (!tid_conf->peer)
return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf);
sta = sta_info_get_bss(sdata, tid_conf->peer);
if (!sta)
return -ENOENT;
return drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf);
}
static int ieee80211_reset_tid_config(struct wiphy *wiphy,
struct net_device *dev,
const u8 *peer, u8 tids)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct sta_info *sta;
lockdep_assert_wiphy(sdata->local->hw.wiphy);
if (!sdata->local->ops->reset_tid_config)
return -EOPNOTSUPP;
if (!peer)
return drv_reset_tid_config(sdata->local, sdata, NULL, tids);
sta = sta_info_get_bss(sdata, peer);
if (!sta)
return -ENOENT;
return drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids);
}
static int ieee80211_set_sar_specs(struct wiphy *wiphy,
struct cfg80211_sar_specs *sar)
{
struct ieee80211_local *local = wiphy_priv(wiphy);
if (!local->ops->set_sar_specs)
return -EOPNOTSUPP;
return local->ops->set_sar_specs(&local->hw, sar);
}
static int
ieee80211_set_after_color_change_beacon(struct ieee80211_link_data *link,
u64 *changed)
{
struct ieee80211_sub_if_data *sdata = link->sdata;
switch (sdata->vif.type) {
case NL80211_IFTYPE_AP: {
int ret;
if (!link->u.ap.next_beacon)
return -EINVAL;
ret = ieee80211_assign_beacon(sdata, link,
link->u.ap.next_beacon,
NULL, NULL, changed);
ieee80211_free_next_beacon(link);
if (ret < 0)
return ret;
break;
}
default:
WARN_ON_ONCE(1);
return -EINVAL;
}
return 0;
}
static int
ieee80211_set_color_change_beacon(struct ieee80211_link_data *link,
struct cfg80211_color_change_settings *params,
u64 *changed)
{
struct ieee80211_sub_if_data *sdata = link->sdata;
struct ieee80211_color_change_settings color_change = {};
int err;
switch (sdata->vif.type) {
case NL80211_IFTYPE_AP:
link->u.ap.next_beacon =
cfg80211_beacon_dup(&params->beacon_next);
if (!link->u.ap.next_beacon)
return -ENOMEM;
if (params->count <= 1)
break;
color_change.counter_offset_beacon =
params->counter_offset_beacon;
color_change.counter_offset_presp =
params->counter_offset_presp;
color_change.count = params->count;
err = ieee80211_assign_beacon(sdata, link,
&params->beacon_color_change,
NULL, &color_change, changed);
if (err < 0) {
ieee80211_free_next_beacon(link);
return err;
}
break;
default:
return -EOPNOTSUPP;
}
return 0;
}
static void
ieee80211_color_change_bss_config_notify(struct ieee80211_link_data *link,
u8 color, int enable, u64 changed)
{
struct ieee80211_sub_if_data *sdata = link->sdata;
lockdep_assert_wiphy(sdata->local->hw.wiphy);
link->conf->he_bss_color.color = color;
link->conf->he_bss_color.enabled = enable;
changed |= BSS_CHANGED_HE_BSS_COLOR;
ieee80211_link_info_change_notify(sdata, link, changed);
if (!link->conf->nontransmitted &&
rcu_access_pointer(link->conf->tx_bss_conf)) {
struct ieee80211_link_data *tmp;
for_each_sdata_link(sdata->local, tmp) {
if (tmp->sdata == sdata ||
rcu_access_pointer(tmp->conf->tx_bss_conf) != link->conf)
continue;
tmp->conf->he_bss_color.color = color;
tmp->conf->he_bss_color.enabled = enable;
ieee80211_link_info_change_notify(tmp->sdata, tmp,
BSS_CHANGED_HE_BSS_COLOR);
}
}
}
static int ieee80211_color_change_finalize(struct ieee80211_link_data *link)
{
struct ieee80211_sub_if_data *sdata = link->sdata;
struct ieee80211_local *local = sdata->local;
u64 changed = 0;
int err;
lockdep_assert_wiphy(local->hw.wiphy);
link->conf->color_change_active = false;
err = ieee80211_set_after_color_change_beacon(link, &changed);
if (err) {
cfg80211_color_change_aborted_notify(sdata->dev, link->link_id);
return err;
}
ieee80211_color_change_bss_config_notify(link,
link->conf->color_change_color,
1, changed);
cfg80211_color_change_notify(sdata->dev, link->link_id);
return 0;
}
void ieee80211_color_change_finalize_work(struct wiphy *wiphy,
struct wiphy_work *work)
{
struct ieee80211_link_data *link =
container_of(work, struct ieee80211_link_data,
color_change_finalize_work);
struct ieee80211_sub_if_data *sdata = link->sdata;
struct ieee80211_bss_conf *link_conf = link->conf;
struct ieee80211_local *local = sdata->local;
lockdep_assert_wiphy(local->hw.wiphy);
/* AP might have been stopped while waiting for the lock. */
if (!link_conf->color_change_active)
return;
if (!ieee80211_sdata_running(sdata))
return;
ieee80211_color_change_finalize(link);
}
void ieee80211_color_collision_detection_work(struct wiphy *wiphy,
struct wiphy_work *work)
{
struct ieee80211_link_data *link =
container_of(work, struct ieee80211_link_data,
color_collision_detect_work.work);
struct ieee80211_sub_if_data *sdata = link->sdata;
cfg80211_obss_color_collision_notify(sdata->dev, link->color_bitmap,
link->link_id);
}
void ieee80211_color_change_finish(struct ieee80211_vif *vif, u8 link_id)
{
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
struct ieee80211_link_data *link;
if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS))
return;
rcu_read_lock();
link = rcu_dereference(sdata->link[link_id]);
if (WARN_ON(!link)) {
rcu_read_unlock();
return;
}
wiphy_work_queue(sdata->local->hw.wiphy,
&link->color_change_finalize_work);
rcu_read_unlock();
}
EXPORT_SYMBOL_GPL(ieee80211_color_change_finish);
void
ieee80211_obss_color_collision_notify(struct ieee80211_vif *vif,
u64 color_bitmap, u8 link_id)
{
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
struct ieee80211_link_data *link;
if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS))
return;
rcu_read_lock();
link = rcu_dereference(sdata->link[link_id]);
if (WARN_ON(!link)) {
rcu_read_unlock();
return;
}
if (link->conf->color_change_active || link->conf->csa_active) {
rcu_read_unlock();
return;
}
if (wiphy_delayed_work_pending(sdata->local->hw.wiphy,
&link->color_collision_detect_work)) {
rcu_read_unlock();
return;
}
link->color_bitmap = color_bitmap;
/* queue the color collision detection event every 500 ms in order to
* avoid sending too much netlink messages to userspace.
*/
wiphy_delayed_work_queue(sdata->local->hw.wiphy,
&link->color_collision_detect_work,
msecs_to_jiffies(500));
rcu_read_unlock();
}
EXPORT_SYMBOL_GPL(ieee80211_obss_color_collision_notify);
static int
ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_color_change_settings *params)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_local *local = sdata->local;
struct ieee80211_bss_conf *link_conf;
struct ieee80211_link_data *link;
u8 link_id = params->link_id;
u64 changed = 0;
int err;
lockdep_assert_wiphy(local->hw.wiphy);
if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS))
return -EINVAL;
link = wiphy_dereference(wiphy, sdata->link[link_id]);
if (!link)
return -ENOLINK;
link_conf = link->conf;
if (link_conf->nontransmitted)
return -EINVAL;
/* don't allow another color change if one is already active or if csa
* is active
*/
if (link_conf->color_change_active || link_conf->csa_active) {
err = -EBUSY;
goto out;
}
err = ieee80211_set_unsol_bcast_probe_resp(sdata,
&params->unsol_bcast_probe_resp,
link, link_conf, &changed);
if (err)
goto out;
err = ieee80211_set_color_change_beacon(link, params, &changed);
if (err)
goto out;
link_conf->color_change_active = true;
link_conf->color_change_color = params->color;
cfg80211_color_change_started_notify(sdata->dev, params->count, link_id);
if (changed)
ieee80211_color_change_bss_config_notify(link, 0, 0, changed);
else
/* if the beacon didn't change, we can finalize immediately */
ieee80211_color_change_finalize(link);
out:
return err;
}
static int
ieee80211_set_radar_background(struct wiphy *wiphy,
struct cfg80211_chan_def *chandef)
{
struct ieee80211_local *local = wiphy_priv(wiphy);
if (!local->ops->set_radar_background)
return -EOPNOTSUPP;
return local->ops->set_radar_background(&local->hw, chandef);
}
static int ieee80211_add_intf_link(struct wiphy *wiphy,
struct wireless_dev *wdev,
unsigned int link_id)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
lockdep_assert_wiphy(sdata->local->hw.wiphy);
return ieee80211_vif_set_links(sdata, wdev->valid_links, 0);
}
static void ieee80211_del_intf_link(struct wiphy *wiphy,
struct wireless_dev *wdev,
unsigned int link_id)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
u16 new_links = wdev->valid_links & ~BIT(link_id);
lockdep_assert_wiphy(sdata->local->hw.wiphy);
/* During the link teardown process, certain functions require the
* link_id to remain in the valid_links bitmap. Therefore, instead
* of removing the link_id from the bitmap, pass a masked value to
* simulate as if link_id does not exist anymore.
*/
ieee80211_vif_set_links(sdata, new_links, 0);
}
static int
ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev,
struct link_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;
int ret;
lockdep_assert_wiphy(local->hw.wiphy);
sta = sta_info_get_bss(sdata, params->mld_mac);
if (!sta)
return -ENOENT;
if (!sta->sta.valid_links)
return -EINVAL;
if (sta->sta.valid_links & BIT(params->link_id))
return -EALREADY;
ret = ieee80211_sta_allocate_link(sta, params->link_id);
if (ret)
return ret;
ret = sta_link_apply_parameters(local, sta, STA_LINK_MODE_NEW, params);
if (ret) {
ieee80211_sta_free_link(sta, params->link_id);
return ret;
}
if (test_sta_flag(sta, WLAN_STA_ASSOC)) {
struct link_sta_info *link_sta;
link_sta = sdata_dereference(sta->link[params->link_id], sdata);
rate_control_rate_init(link_sta);
}
/* ieee80211_sta_activate_link frees the link upon failure */
return ieee80211_sta_activate_link(sta, params->link_id);
}
static int
ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev,
struct link_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;
lockdep_assert_wiphy(local->hw.wiphy);
sta = sta_info_get_bss(sdata, params->mld_mac);
if (!sta)
return -ENOENT;
if (!(sta->sta.valid_links & BIT(params->link_id)))
return -EINVAL;
return sta_link_apply_parameters(local, sta, STA_LINK_MODE_LINK_MODIFY,
params);
}
static int
ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev,
struct link_station_del_parameters *params)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct sta_info *sta;
lockdep_assert_wiphy(sdata->local->hw.wiphy);
sta = sta_info_get_bss(sdata, params->mld_mac);
if (!sta)
return -ENOENT;
if (!(sta->sta.valid_links & BIT(params->link_id)))
return -EINVAL;
/* must not create a STA without links */
if (sta->sta.valid_links == BIT(params->link_id))
return -EINVAL;
ieee80211_sta_remove_link(sta, params->link_id);
return 0;
}
static int ieee80211_set_hw_timestamp(struct wiphy *wiphy,
struct net_device *dev,
struct cfg80211_set_hw_timestamp *hwts)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_local *local = sdata->local;
if (!local->ops->set_hw_timestamp)
return -EOPNOTSUPP;
if (!check_sdata_in_driver(sdata))
return -EIO;
return local->ops->set_hw_timestamp(&local->hw, &sdata->vif, hwts);
}
static int
ieee80211_set_ttlm(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_ttlm_params *params)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
lockdep_assert_wiphy(sdata->local->hw.wiphy);
return ieee80211_req_neg_ttlm(sdata, params);
}
static int
ieee80211_assoc_ml_reconf(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_ml_reconf_req *req)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
lockdep_assert_wiphy(sdata->local->hw.wiphy);
return ieee80211_mgd_assoc_ml_reconf(sdata, req);
}
static int
ieee80211_set_epcs(struct wiphy *wiphy, struct net_device *dev, bool enable)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
return ieee80211_mgd_set_epcs(sdata, enable);
}
static int
ieee80211_set_local_nan_sched(struct wiphy *wiphy,
struct wireless_dev *wdev,
struct cfg80211_nan_local_sched *sched)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
lockdep_assert_wiphy(wiphy);
return ieee80211_nan_set_local_sched(sdata, sched);
}
static int
ieee80211_set_peer_nan_sched(struct wiphy *wiphy,
struct wireless_dev *wdev,
struct cfg80211_nan_peer_sched *sched)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
lockdep_assert_wiphy(sdata->local->hw.wiphy);
return ieee80211_nan_set_peer_sched(sdata, sched);
}
const struct cfg80211_ops mac80211_config_ops = {
.add_virtual_intf = ieee80211_add_iface,
.del_virtual_intf = ieee80211_del_iface,
.change_virtual_intf = ieee80211_change_iface,
.start_p2p_device = ieee80211_start_p2p_device,
.stop_p2p_device = ieee80211_stop_p2p_device,
.add_key = ieee80211_add_key,
.del_key = ieee80211_del_key,
.get_key = ieee80211_get_key,
.set_default_key = ieee80211_config_default_key,
.set_default_mgmt_key = ieee80211_config_default_mgmt_key,
.set_default_beacon_key = ieee80211_config_default_beacon_key,
.start_ap = ieee80211_start_ap,
.change_beacon = ieee80211_change_beacon,
.stop_ap = ieee80211_stop_ap,
.add_station = ieee80211_add_station,
.del_station = ieee80211_del_station,
.change_station = ieee80211_change_station,
.get_station = ieee80211_get_station,
.dump_station = ieee80211_dump_station,
.dump_survey = ieee80211_dump_survey,
#ifdef CONFIG_MAC80211_MESH
.add_mpath = ieee80211_add_mpath,
.del_mpath = ieee80211_del_mpath,
.change_mpath = ieee80211_change_mpath,
.get_mpath = ieee80211_get_mpath,
.dump_mpath = ieee80211_dump_mpath,
.get_mpp = ieee80211_get_mpp,
.dump_mpp = ieee80211_dump_mpp,
.update_mesh_config = ieee80211_update_mesh_config,
.get_mesh_config = ieee80211_get_mesh_config,
.join_mesh = ieee80211_join_mesh,
.leave_mesh = ieee80211_leave_mesh,
#endif
.join_ocb = ieee80211_join_ocb,
.leave_ocb = ieee80211_leave_ocb,
.change_bss = ieee80211_change_bss,
.inform_bss = ieee80211_inform_bss,
.set_txq_params = ieee80211_set_txq_params,
.set_monitor_channel = ieee80211_set_monitor_channel,
.suspend = ieee80211_suspend,
.resume = ieee80211_resume,
.scan = ieee80211_scan,
.abort_scan = ieee80211_abort_scan,
.sched_scan_start = ieee80211_sched_scan_start,
.sched_scan_stop = ieee80211_sched_scan_stop,
.auth = ieee80211_auth,
.assoc = ieee80211_assoc,
.deauth = ieee80211_deauth,
.disassoc = ieee80211_disassoc,
.join_ibss = ieee80211_join_ibss,
.leave_ibss = ieee80211_leave_ibss,
.set_mcast_rate = ieee80211_set_mcast_rate,
.set_wiphy_params = ieee80211_set_wiphy_params,
.set_tx_power = ieee80211_set_tx_power,
.get_tx_power = ieee80211_get_tx_power,
.rfkill_poll = ieee80211_rfkill_poll,
CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
.set_power_mgmt = ieee80211_set_power_mgmt,
.set_bitrate_mask = ieee80211_set_bitrate_mask,
.remain_on_channel = ieee80211_remain_on_channel,
.cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
.mgmt_tx = ieee80211_mgmt_tx,
.mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
.set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
.set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config,
.update_mgmt_frame_registrations =
ieee80211_update_mgmt_frame_registrations,
.set_antenna = ieee80211_set_antenna,
.get_antenna = ieee80211_get_antenna,
.set_rekey_data = ieee80211_set_rekey_data,
.tdls_oper = ieee80211_tdls_oper,
.tdls_mgmt = ieee80211_tdls_mgmt,
.tdls_channel_switch = ieee80211_tdls_channel_switch,
.tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
.probe_client = ieee80211_probe_client,
.set_noack_map = ieee80211_set_noack_map,
#ifdef CONFIG_PM
.set_wakeup = ieee80211_set_wakeup,
#endif
.get_channel = ieee80211_cfg_get_channel,
.start_radar_detection = ieee80211_start_radar_detection,
.end_cac = ieee80211_end_cac,
.channel_switch = ieee80211_channel_switch,
.set_qos_map = ieee80211_set_qos_map,
.set_ap_chanwidth = ieee80211_set_ap_chanwidth,
.add_tx_ts = ieee80211_add_tx_ts,
.del_tx_ts = ieee80211_del_tx_ts,
.start_nan = ieee80211_start_nan,
.stop_nan = ieee80211_stop_nan,
.nan_change_conf = ieee80211_nan_change_conf,
.add_nan_func = ieee80211_add_nan_func,
.del_nan_func = ieee80211_del_nan_func,
.set_multicast_to_unicast = ieee80211_set_multicast_to_unicast,
.tx_control_port = ieee80211_tx_control_port,
.get_txq_stats = ieee80211_get_txq_stats,
.get_ftm_responder_stats = ieee80211_get_ftm_responder_stats,
.start_pmsr = ieee80211_start_pmsr,
.abort_pmsr = ieee80211_abort_pmsr,
.probe_mesh_link = ieee80211_probe_mesh_link,
.set_tid_config = ieee80211_set_tid_config,
.reset_tid_config = ieee80211_reset_tid_config,
.set_sar_specs = ieee80211_set_sar_specs,
.color_change = ieee80211_color_change,
.set_radar_background = ieee80211_set_radar_background,
.add_intf_link = ieee80211_add_intf_link,
.del_intf_link = ieee80211_del_intf_link,
.add_link_station = ieee80211_add_link_station,
.mod_link_station = ieee80211_mod_link_station,
.del_link_station = ieee80211_del_link_station,
.set_hw_timestamp = ieee80211_set_hw_timestamp,
.set_ttlm = ieee80211_set_ttlm,
.get_radio_mask = ieee80211_get_radio_mask,
.assoc_ml_reconf = ieee80211_assoc_ml_reconf,
.set_epcs = ieee80211_set_epcs,
.nan_set_local_sched = ieee80211_set_local_nan_sched,
.nan_set_peer_sched = ieee80211_set_peer_nan_sched,
};