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Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

This commit is contained in:
John W. Linville 2012-09-24 14:34:40 -04:00
parent 7a5f799bec 9385d04f28
commit 9b4e9e7565
22 changed files with 429 additions and 334 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/wireless/ath/ath5k/mac80211-ops.c
View File

@ -523,7 +523,7 @@ ath5k_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
if (key->cipher == WLAN_CIPHER_SUITE_TKIP)
key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
if (key->cipher == WLAN_CIPHER_SUITE_CCMP)
key->flags |= IEEE80211_KEY_FLAG_SW_MGMT;
key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
ret = 0;
}
break;

2
drivers/net/wireless/ath/ath9k/htc_drv_main.c
View File

@ -1445,7 +1445,7 @@ static int ath9k_htc_set_key(struct ieee80211_hw *hw,
key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
if (priv->ah->sw_mgmt_crypto &&
key->cipher == WLAN_CIPHER_SUITE_CCMP)
key->flags |= IEEE80211_KEY_FLAG_SW_MGMT;
key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
ret = 0;
}
break;

2
drivers/net/wireless/ath/ath9k/main.c
View File

@ -1406,7 +1406,7 @@ static int ath9k_set_key(struct ieee80211_hw *hw,
key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
if (sc->sc_ah->sw_mgmt_crypto &&
key->cipher == WLAN_CIPHER_SUITE_CCMP)
key->flags |= IEEE80211_KEY_FLAG_SW_MGMT;
key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
ret = 0;
}
break;

5
drivers/net/wireless/mac80211_hwsim.c
View File

@ -2056,7 +2056,7 @@ failed:
mac80211_hwsim_free();
return err;
}
module_init(init_mac80211_hwsim);
static void __exit exit_mac80211_hwsim(void)
{
@ -2067,7 +2067,4 @@ static void __exit exit_mac80211_hwsim(void)
mac80211_hwsim_free();
unregister_netdev(hwsim_mon);
}
module_init(init_mac80211_hwsim);
module_exit(exit_mac80211_hwsim);

80
include/linux/ieee80211.h
View File

@ -1934,36 +1934,6 @@ static inline bool ieee80211_is_public_action(struct ieee80211_hdr *hdr,
return mgmt->u.action.category == WLAN_CATEGORY_PUBLIC;
}
/**
* ieee80211_fhss_chan_to_freq - get channel frequency
* @channel: the FHSS channel
*
* Convert IEEE802.11 FHSS channel to frequency (MHz)
* Ref IEEE 802.11-2007 section 14.6
*/
static inline int ieee80211_fhss_chan_to_freq(int channel)
{
if ((channel > 1) && (channel < 96))
return channel + 2400;
else
return -1;
}
/**
* ieee80211_freq_to_fhss_chan - get channel
* @freq: the channels frequency
*
* Convert frequency (MHz) to IEEE802.11 FHSS channel
* Ref IEEE 802.11-2007 section 14.6
*/
static inline int ieee80211_freq_to_fhss_chan(int freq)
{
if ((freq > 2401) && (freq < 2496))
return freq - 2400;
else
return -1;
}
/**
* ieee80211_dsss_chan_to_freq - get channel center frequency
* @channel: the DSSS channel
@ -2000,56 +1970,6 @@ static inline int ieee80211_freq_to_dsss_chan(int freq)
return -1;
}
/* Convert IEEE802.11 HR DSSS channel to frequency (MHz) and back
* Ref IEEE 802.11-2007 section 18.4.6.2
*
* The channels and frequencies are the same as those defined for DSSS
*/
#define ieee80211_hr_chan_to_freq(chan) ieee80211_dsss_chan_to_freq(chan)
#define ieee80211_freq_to_hr_chan(freq) ieee80211_freq_to_dsss_chan(freq)
/* Convert IEEE802.11 ERP channel to frequency (MHz) and back
* Ref IEEE 802.11-2007 section 19.4.2
*/
#define ieee80211_erp_chan_to_freq(chan) ieee80211_hr_chan_to_freq(chan)
#define ieee80211_freq_to_erp_chan(freq) ieee80211_freq_to_hr_chan(freq)
/**
* ieee80211_ofdm_chan_to_freq - get channel center frequency
* @s_freq: starting frequency == (dotChannelStartingFactor/2) MHz
* @channel: the OFDM channel
*
* Convert IEEE802.11 OFDM channel to center frequency (MHz)
* Ref IEEE 802.11-2007 section 17.3.8.3.2
*/
static inline int ieee80211_ofdm_chan_to_freq(int s_freq, int channel)
{
if ((channel > 0) && (channel <= 200) &&
(s_freq >= 4000))
return s_freq + (channel * 5);
else
return -1;
}
/**
* ieee80211_freq_to_ofdm_channel - get channel
* @s_freq: starting frequency == (dotChannelStartingFactor/2) MHz
* @freq: the frequency
*
* Convert frequency (MHz) to IEEE802.11 OFDM channel
* Ref IEEE 802.11-2007 section 17.3.8.3.2
*
* This routine selects the channel with the closest center frequency.
*/
static inline int ieee80211_freq_to_ofdm_chan(int s_freq, int freq)
{
if ((freq > (s_freq + 2)) && (freq <= (s_freq + 1202)) &&
(s_freq >= 4000))
return (freq + 2 - s_freq) / 5;
else
return -1;
}
/**
* ieee80211_tu_to_usec - convert time units (TU) to microseconds
* @tu: the TUs

12
include/net/mac80211.h
View File

@ -973,21 +973,29 @@ static inline bool ieee80211_vif_is_mesh(struct ieee80211_vif *vif)
* generation in software.
* @IEEE80211_KEY_FLAG_PAIRWISE: Set by mac80211, this flag indicates
* that the key is pairwise rather then a shared key.
* @IEEE80211_KEY_FLAG_SW_MGMT: This flag should be set by the driver for a
* @IEEE80211_KEY_FLAG_SW_MGMT_TX: This flag should be set by the driver for a
* CCMP key if it requires CCMP encryption of management frames (MFP) to
* be done in software.
* @IEEE80211_KEY_FLAG_PUT_IV_SPACE: This flag should be set by the driver
* if space should be prepared for the IV, but the IV
* itself should not be generated. Do not set together with
* @IEEE80211_KEY_FLAG_GENERATE_IV on the same key.
* @IEEE80211_KEY_FLAG_RX_MGMT: This key will be used to decrypt received
* management frames. The flag can help drivers that have a hardware
* crypto implementation that doesn't deal with management frames
* properly by allowing them to not upload the keys to hardware and
* fall back to software crypto. Note that this flag deals only with
* RX, if your crypto engine can't deal with TX you can also set the
* %IEEE80211_KEY_FLAG_SW_MGMT_TX flag to encrypt such frames in SW.
*/
enum ieee80211_key_flags {
IEEE80211_KEY_FLAG_WMM_STA = 1<<0,
IEEE80211_KEY_FLAG_GENERATE_IV = 1<<1,
IEEE80211_KEY_FLAG_GENERATE_MMIC= 1<<2,
IEEE80211_KEY_FLAG_PAIRWISE = 1<<3,
IEEE80211_KEY_FLAG_SW_MGMT = 1<<4,
IEEE80211_KEY_FLAG_SW_MGMT_TX = 1<<4,
IEEE80211_KEY_FLAG_PUT_IV_SPACE = 1<<5,
IEEE80211_KEY_FLAG_RX_MGMT = 1<<6,
};
/**

34
net/mac80211/cfg.c
View File

@ -170,6 +170,38 @@ static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
}
}
switch (sdata->vif.type) {
case NL80211_IFTYPE_STATION:
if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
break;
case NL80211_IFTYPE_AP:
case NL80211_IFTYPE_AP_VLAN:
/* Keys without a station are used for TX only */
if (key->sta && test_sta_flag(key->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_UNSPECIFIED:
case NUM_NL80211_IFTYPES:
case NL80211_IFTYPE_P2P_CLIENT:
case NL80211_IFTYPE_P2P_GO:
/* shouldn't happen */
WARN_ON_ONCE(1);
break;
}
err = ieee80211_key_link(key, sdata, sta);
if (err)
ieee80211_key_free(sdata->local, key);
@ -2038,9 +2070,7 @@ int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
*/
if (!sdata->u.mgd.associated ||
sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) {
mutex_lock(&sdata->local->iflist_mtx);
ieee80211_recalc_smps(sdata->local);
mutex_unlock(&sdata->local->iflist_mtx);
return 0;
}

67
net/mac80211/chan.c
View File

@ -68,16 +68,14 @@ ieee80211_get_channel_mode(struct ieee80211_local *local,
return mode;
}
bool ieee80211_set_channel_type(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata,
enum nl80211_channel_type chantype)
static enum nl80211_channel_type
ieee80211_get_superchan(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_sub_if_data *tmp;
enum nl80211_channel_type superchan = NL80211_CHAN_NO_HT;
bool result;
struct ieee80211_sub_if_data *tmp;
mutex_lock(&local->iflist_mtx);
list_for_each_entry(tmp, &local->interfaces, list) {
if (tmp == sdata)
continue;
@ -103,39 +101,70 @@ bool ieee80211_set_channel_type(struct ieee80211_local *local,
break;
}
}
mutex_unlock(&local->iflist_mtx);
switch (superchan) {
return superchan;
}
static bool
ieee80211_channel_types_are_compatible(enum nl80211_channel_type chantype1,
enum nl80211_channel_type chantype2,
enum nl80211_channel_type *compat)
{
/*
* start out with chantype1 being the result,
* overwriting later if needed
*/
if (compat)
*compat = chantype1;
switch (chantype1) {
case NL80211_CHAN_NO_HT:
if (compat)
*compat = chantype2;
break;
case NL80211_CHAN_HT20:
/*
* allow any change that doesn't go to no-HT
* (if it already is no-HT no change is needed)
*/
if (chantype == NL80211_CHAN_NO_HT)
if (chantype2 == NL80211_CHAN_NO_HT)
break;
superchan = chantype;
if (compat)
*compat = chantype2;
break;
case NL80211_CHAN_HT40PLUS:
case NL80211_CHAN_HT40MINUS:
/* allow smaller bandwidth and same */
if (chantype == NL80211_CHAN_NO_HT)
if (chantype2 == NL80211_CHAN_NO_HT)
break;
if (chantype == NL80211_CHAN_HT20)
if (chantype2 == NL80211_CHAN_HT20)
break;
if (superchan == chantype)
if (chantype2 == chantype1)
break;
result = false;
goto out;
return false;
}
local->_oper_channel_type = superchan;
return true;
}
bool ieee80211_set_channel_type(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata,
enum nl80211_channel_type chantype)
{
enum nl80211_channel_type superchan;
enum nl80211_channel_type compatchan;
superchan = ieee80211_get_superchan(local, sdata);
if (!ieee80211_channel_types_are_compatible(superchan, chantype,
&compatchan))
return false;
local->_oper_channel_type = compatchan;
if (sdata)
sdata->vif.bss_conf.channel_type = chantype;
result = true;
out:
mutex_unlock(&local->iflist_mtx);
return true;
return result;
}

33
net/mac80211/ibss.c
View File

@ -332,11 +332,27 @@ ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
return ieee80211_ibss_finish_sta(sta, auth);
}
static void ieee80211_rx_mgmt_deauth_ibss(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt,
size_t len)
{
u16 reason = le16_to_cpu(mgmt->u.deauth.reason_code);
if (len < IEEE80211_DEAUTH_FRAME_LEN)
return;
ibss_dbg(sdata, "RX DeAuth SA=%pM DA=%pM BSSID=%pM (reason: %d)\n",
mgmt->sa, mgmt->da, mgmt->bssid, reason);
sta_info_destroy_addr(sdata, mgmt->sa);
}
static void ieee80211_rx_mgmt_auth_ibss(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt,
size_t len)
{
u16 auth_alg, auth_transaction;
struct sta_info *sta;
u8 deauth_frame_buf[IEEE80211_DEAUTH_FRAME_LEN];
lockdep_assert_held(&sdata->u.ibss.mtx);
@ -352,9 +368,21 @@ static void ieee80211_rx_mgmt_auth_ibss(struct ieee80211_sub_if_data *sdata,
"RX Auth SA=%pM DA=%pM BSSID=%pM (auth_transaction=%d)\n",
mgmt->sa, mgmt->da, mgmt->bssid, auth_transaction);
sta_info_destroy_addr(sdata, mgmt->sa);
ieee80211_ibss_add_sta(sdata, mgmt->bssid, mgmt->sa, 0, false);
sta = ieee80211_ibss_add_sta(sdata, mgmt->bssid, mgmt->sa, 0, false);
rcu_read_unlock();
/*
* if we have any problem in allocating the new station, we reply with a
* DEAUTH frame to tell the other end that we had a problem
*/
if (!sta) {
ieee80211_send_deauth_disassoc(sdata, sdata->u.ibss.bssid,
IEEE80211_STYPE_DEAUTH,
WLAN_REASON_UNSPECIFIED, true,
deauth_frame_buf);
return;
}
/*
* IEEE 802.11 standard does not require authentication in IBSS
* networks and most implementations do not seem to use it.
@ -902,6 +930,9 @@ void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
case IEEE80211_STYPE_AUTH:
ieee80211_rx_mgmt_auth_ibss(sdata, mgmt, skb->len);
break;
case IEEE80211_STYPE_DEAUTH:
ieee80211_rx_mgmt_deauth_ibss(sdata, mgmt, skb->len);
break;
}
mgmt_out:

23
net/mac80211/ieee80211_i.h
View File

@ -68,6 +68,8 @@ struct ieee80211_local;
#define IEEE80211_DEFAULT_MAX_SP_LEN \
IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
#define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */)
struct ieee80211_fragment_entry {
unsigned long first_frag_time;
unsigned int seq;
@ -411,6 +413,7 @@ struct ieee80211_if_managed {
struct work_struct monitor_work;
struct work_struct chswitch_work;
struct work_struct beacon_connection_loss_work;
struct work_struct csa_connection_drop_work;
unsigned long beacon_timeout;
unsigned long probe_timeout;
@ -970,7 +973,6 @@ struct ieee80211_local {
int scan_channel_idx;
int scan_ies_len;
struct ieee80211_sched_scan_ies sched_scan_ies;
struct work_struct sched_scan_stopped_work;
struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
@ -1057,7 +1059,7 @@ struct ieee80211_local {
bool disable_dynamic_ps;
int user_power_level; /* in dBm */
int power_constr_level; /* in dBm */
int ap_power_level; /* in dBm */
enum ieee80211_smps_mode smps_mode;
@ -1165,7 +1167,6 @@ struct ieee802_11_elems {
u8 prep_len;
u8 perr_len;
u8 country_elem_len;
u8 pwr_constr_elem_len;
u8 quiet_elem_len;
u8 num_of_quiet_elem; /* can be more the one */
u8 timeout_int_len;
@ -1367,7 +1368,6 @@ void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
int ieee80211_reconfig(struct ieee80211_local *local);
void ieee80211_stop_device(struct ieee80211_local *local);
#ifdef CONFIG_PM
int __ieee80211_suspend(struct ieee80211_hw *hw,
struct cfg80211_wowlan *wowlan);
@ -1381,18 +1381,6 @@ static inline int __ieee80211_resume(struct ieee80211_hw *hw)
return ieee80211_reconfig(hw_to_local(hw));
}
#else
static inline int __ieee80211_suspend(struct ieee80211_hw *hw,
struct cfg80211_wowlan *wowlan)
{
return 0;
}
static inline int __ieee80211_resume(struct ieee80211_hw *hw)
{
return 0;
}
#endif
/* utility functions/constants */
extern void *mac80211_wiphy_privid; /* for wiphy privid */
@ -1459,6 +1447,9 @@ void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
u16 transaction, u16 auth_alg,
u8 *extra, size_t extra_len, const u8 *bssid,
const u8 *da, const u8 *key, u8 key_len, u8 key_idx);
void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
const u8 *bssid, u16 stype, u16 reason,
bool send_frame, u8 *frame_buf);
int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
const u8 *ie, size_t ie_len,
enum ieee80211_band band, u32 rate_mask,

15
net/mac80211/iface.c
View File

@ -793,11 +793,20 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
flush_work(&sdata->work);
/*
* When we get here, the interface is marked down.
* Call synchronize_rcu() to wait for the RX path
* Call rcu_barrier() to wait both for the RX path
* should it be using the interface and enqueuing
* frames at this very time on another CPU.
* frames at this very time on another CPU, and
* for the sta free call_rcu callbacks.
*/
synchronize_rcu();
rcu_barrier();
/*
* free_sta_rcu() enqueues a work for the actual
* sta cleanup, so we need to flush it while
* sdata is still valid.
*/
flush_workqueue(local->workqueue);
skb_queue_purge(&sdata->skb_queue);
/*

2
net/mac80211/key.c
View File

@ -402,7 +402,7 @@ static void __ieee80211_key_destroy(struct ieee80211_key *key)
* Synchronize so the TX path can no longer be using
* this key before we free/remove it.
*/
synchronize_rcu();
synchronize_net();
if (key->local)
ieee80211_key_disable_hw_accel(key);

10
net/mac80211/main.c
View File

@ -150,13 +150,11 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
if (test_bit(SCAN_SW_SCANNING, &local->scanning) ||
test_bit(SCAN_ONCHANNEL_SCANNING, &local->scanning) ||
test_bit(SCAN_HW_SCANNING, &local->scanning))
test_bit(SCAN_HW_SCANNING, &local->scanning) ||
!local->ap_power_level)
power = chan->max_power;
else
power = local->power_constr_level ?
min(chan->max_power,
(chan->max_reg_power - local->power_constr_level)) :
chan->max_power;
power = min(chan->max_power, local->ap_power_level);
if (local->user_power_level >= 0)
power = min(power, local->user_power_level);
@ -366,9 +364,7 @@ static void ieee80211_recalc_smps_work(struct work_struct *work)
struct ieee80211_local *local =
container_of(work, struct ieee80211_local, recalc_smps);
mutex_lock(&local->iflist_mtx);
ieee80211_recalc_smps(local);
mutex_unlock(&local->iflist_mtx);
}
#ifdef CONFIG_INET

3
net/mac80211/mesh_plink.c
View File

@ -537,7 +537,8 @@ int mesh_plink_open(struct sta_info *sta)
spin_lock_bh(&sta->lock);
get_random_bytes(&llid, 2);
sta->llid = llid;
if (sta->plink_state != NL80211_PLINK_LISTEN) {
if (sta->plink_state != NL80211_PLINK_LISTEN &&
sta->plink_state != NL80211_PLINK_BLOCKED) {
spin_unlock_bh(&sta->lock);
return -EBUSY;
}

205
net/mac80211/mlme.c
View File

@ -88,8 +88,6 @@ MODULE_PARM_DESC(probe_wait_ms,
#define TMR_RUNNING_TIMER 0
#define TMR_RUNNING_CHANSW 1
#define DEAUTH_DISASSOC_LEN (24 /* hdr */ + 2 /* reason */)
/*
* All cfg80211 functions have to be called outside a locked
* section so that they can acquire a lock themselves... This
@ -574,46 +572,6 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
ieee80211_tx_skb(sdata, skb);
}
static void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
const u8 *bssid, u16 stype,
u16 reason, bool send_frame,
u8 *frame_buf)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct sk_buff *skb;
struct ieee80211_mgmt *mgmt = (void *)frame_buf;
/* build frame */
mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | stype);
mgmt->duration = 0; /* initialize only */
mgmt->seq_ctrl = 0; /* initialize only */
memcpy(mgmt->da, bssid, ETH_ALEN);
memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
memcpy(mgmt->bssid, bssid, ETH_ALEN);
/* u.deauth.reason_code == u.disassoc.reason_code */
mgmt->u.deauth.reason_code = cpu_to_le16(reason);
if (send_frame) {
skb = dev_alloc_skb(local->hw.extra_tx_headroom +
DEAUTH_DISASSOC_LEN);
if (!skb)
return;
skb_reserve(skb, local->hw.extra_tx_headroom);
/* copy in frame */
memcpy(skb_put(skb, DEAUTH_DISASSOC_LEN),
mgmt, DEAUTH_DISASSOC_LEN);
if (!(ifmgd->flags & IEEE80211_STA_MFP_ENABLED))
IEEE80211_SKB_CB(skb)->flags |=
IEEE80211_TX_INTFL_DONT_ENCRYPT;
ieee80211_tx_skb(sdata, skb);
}
}
void ieee80211_send_pspoll(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata)
{
@ -730,16 +688,13 @@ void ieee80211_chswitch_done(struct ieee80211_vif *vif, bool success)
trace_api_chswitch_done(sdata, success);
if (!success) {
/*
* If the channel switch was not successful, stay
* around on the old channel. We currently lack
* good handling of this situation, possibly we
* should just drop the association.
*/
sdata->local->csa_channel = sdata->local->oper_channel;
}
sdata_info(sdata,
"driver channel switch failed, disconnecting\n");
ieee80211_queue_work(&sdata->local->hw,
&ifmgd->csa_connection_drop_work);
} else {
ieee80211_queue_work(&sdata->local->hw, &ifmgd->chswitch_work);
}
}
EXPORT_SYMBOL(ieee80211_chswitch_done);
@ -784,8 +739,14 @@ void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
return;
new_ch = ieee80211_get_channel(sdata->local->hw.wiphy, new_freq);
if (!new_ch || new_ch->flags & IEEE80211_CHAN_DISABLED)
if (!new_ch || new_ch->flags & IEEE80211_CHAN_DISABLED) {
sdata_info(sdata,
"AP %pM switches to unsupported channel (%d MHz), disconnecting\n",
ifmgd->associated->bssid, new_freq);
ieee80211_queue_work(&sdata->local->hw,
&ifmgd->csa_connection_drop_work);
return;
}
sdata->local->csa_channel = new_ch;
@ -818,23 +779,71 @@ void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
}
static void ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata,
u16 capab_info, u8 *pwr_constr_elem,
u8 pwr_constr_elem_len)
struct ieee80211_channel *channel,
const u8 *country_ie, u8 country_ie_len,
const u8 *pwr_constr_elem)
{
struct ieee80211_conf *conf = &sdata->local->hw.conf;
struct ieee80211_country_ie_triplet *triplet;
int chan = ieee80211_frequency_to_channel(channel->center_freq);
int i, chan_pwr, chan_increment, new_ap_level;
bool have_chan_pwr = false;
if (!(capab_info & WLAN_CAPABILITY_SPECTRUM_MGMT))
/* Invalid IE */
if (country_ie_len % 2 || country_ie_len < IEEE80211_COUNTRY_IE_MIN_LEN)
return;
/* Power constraint IE length should be 1 octet */
if (pwr_constr_elem_len != 1)
return;
triplet = (void *)(country_ie + 3);
country_ie_len -= 3;
if ((*pwr_constr_elem <= conf->channel->max_reg_power) &&
(*pwr_constr_elem != sdata->local->power_constr_level)) {
sdata->local->power_constr_level = *pwr_constr_elem;
ieee80211_hw_config(sdata->local, 0);
switch (channel->band) {
default:
WARN_ON_ONCE(1);
/* fall through */
case IEEE80211_BAND_2GHZ:
case IEEE80211_BAND_60GHZ:
chan_increment = 1;
break;
case IEEE80211_BAND_5GHZ:
chan_increment = 4;
break;
}
/* find channel */
while (country_ie_len >= 3) {
u8 first_channel = triplet->chans.first_channel;
if (first_channel >= IEEE80211_COUNTRY_EXTENSION_ID)
goto next;
for (i = 0; i < triplet->chans.num_channels; i++) {
if (first_channel + i * chan_increment == chan) {
have_chan_pwr = true;
chan_pwr = triplet->chans.max_power;
break;
}
}
if (have_chan_pwr)
break;
next:
triplet++;
country_ie_len -= 3;
}
if (!have_chan_pwr)
return;
new_ap_level = max_t(int, 0, chan_pwr - *pwr_constr_elem);
if (sdata->local->ap_power_level == new_ap_level)
return;
sdata_info(sdata,
"Limiting TX power to %d (%d - %d) dBm as advertised by %pM\n",
new_ap_level, chan_pwr, *pwr_constr_elem,
sdata->u.mgd.bssid);
sdata->local->ap_power_level = new_ap_level;
ieee80211_hw_config(sdata->local, 0);
}
void ieee80211_enable_dyn_ps(struct ieee80211_vif *vif)
@ -1339,9 +1348,9 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
mutex_lock(&local->iflist_mtx);
ieee80211_recalc_ps(local, -1);
ieee80211_recalc_smps(local);
mutex_unlock(&local->iflist_mtx);
ieee80211_recalc_smps(local);
ieee80211_recalc_ps_vif(sdata);
netif_tx_start_all_queues(sdata->dev);
@ -1438,7 +1447,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
memset(&ifmgd->ht_capa, 0, sizeof(ifmgd->ht_capa));
memset(&ifmgd->ht_capa_mask, 0, sizeof(ifmgd->ht_capa_mask));
local->power_constr_level = 0;
local->ap_power_level = 0;
del_timer_sync(&local->dynamic_ps_timer);
cancel_work_sync(&local->dynamic_ps_enable_work);
@ -1692,11 +1701,12 @@ struct sk_buff *ieee80211_ap_probereq_get(struct ieee80211_hw *hw,
}
EXPORT_SYMBOL(ieee80211_ap_probereq_get);
static void __ieee80211_connection_loss(struct ieee80211_sub_if_data *sdata)
static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata,
bool transmit_frame)
{
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct ieee80211_local *local = sdata->local;
u8 frame_buf[DEAUTH_DISASSOC_LEN];
u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN];
mutex_lock(&ifmgd->mtx);
if (!ifmgd->associated) {
@ -1704,19 +1714,17 @@ static void __ieee80211_connection_loss(struct ieee80211_sub_if_data *sdata)
return;
}
sdata_info(sdata, "Connection to AP %pM lost\n",
ifmgd->associated->bssid);
ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH,
WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY,
false, frame_buf);
transmit_frame, frame_buf);
ifmgd->flags &= ~IEEE80211_STA_CSA_RECEIVED;
mutex_unlock(&ifmgd->mtx);
/*
* must be outside lock due to cfg80211,
* but that's not a problem.
*/
cfg80211_send_deauth(sdata->dev, frame_buf, DEAUTH_DISASSOC_LEN);
cfg80211_send_deauth(sdata->dev, frame_buf, IEEE80211_DEAUTH_FRAME_LEN);
mutex_lock(&local->mtx);
ieee80211_recalc_idle(local);
@ -1739,10 +1747,24 @@ static void ieee80211_beacon_connection_loss_work(struct work_struct *work)
rcu_read_unlock();
}
if (sdata->local->hw.flags & IEEE80211_HW_CONNECTION_MONITOR)
__ieee80211_connection_loss(sdata);
else
if (sdata->local->hw.flags & IEEE80211_HW_CONNECTION_MONITOR) {
sdata_info(sdata, "Connection to AP %pM lost\n",
ifmgd->bssid);
__ieee80211_disconnect(sdata, false);
} else {
ieee80211_mgd_probe_ap(sdata, true);
}
}
static void ieee80211_csa_connection_drop_work(struct work_struct *work)
{
struct ieee80211_sub_if_data *sdata =
container_of(work, struct ieee80211_sub_if_data,
u.mgd.csa_connection_drop_work);
ieee80211_wake_queues_by_reason(&sdata->local->hw,
IEEE80211_QUEUE_STOP_REASON_CSA);
__ieee80211_disconnect(sdata, true);
}
void ieee80211_beacon_loss(struct ieee80211_vif *vif)
@ -2530,15 +2552,13 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
bssid, true);
}
/* Note: country IE parsing is done for us by cfg80211 */
if (elems.country_elem) {
/* TODO: IBSS also needs this */
if (elems.pwr_constr_elem)
ieee80211_handle_pwr_constr(sdata,
le16_to_cpu(mgmt->u.probe_resp.capab_info),
elems.pwr_constr_elem,
elems.pwr_constr_elem_len);
}
if (elems.country_elem && elems.pwr_constr_elem &&
mgmt->u.probe_resp.capab_info &
cpu_to_le16(WLAN_CAPABILITY_SPECTRUM_MGMT))
ieee80211_handle_pwr_constr(sdata, local->oper_channel,
elems.country_elem,
elems.country_elem_len,
elems.pwr_constr_elem);
ieee80211_bss_info_change_notify(sdata, changed);
}
@ -2635,7 +2655,7 @@ static void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata,
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
u8 frame_buf[DEAUTH_DISASSOC_LEN];
u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN];
ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, reason,
false, frame_buf);
@ -2645,7 +2665,7 @@ static void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata,
* must be outside lock due to cfg80211,
* but that's not a problem.
*/
cfg80211_send_deauth(sdata->dev, frame_buf, DEAUTH_DISASSOC_LEN);
cfg80211_send_deauth(sdata->dev, frame_buf, IEEE80211_DEAUTH_FRAME_LEN);
mutex_lock(&local->mtx);
ieee80211_recalc_idle(local);
@ -2929,6 +2949,7 @@ void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata)
cancel_work_sync(&ifmgd->monitor_work);
cancel_work_sync(&ifmgd->beacon_connection_loss_work);
cancel_work_sync(&ifmgd->csa_connection_drop_work);
if (del_timer_sync(&ifmgd->timer))
set_bit(TMR_RUNNING_TIMER, &ifmgd->timers_running);
@ -2985,6 +3006,8 @@ void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata)
INIT_WORK(&ifmgd->chswitch_work, ieee80211_chswitch_work);
INIT_WORK(&ifmgd->beacon_connection_loss_work,
ieee80211_beacon_connection_loss_work);
INIT_WORK(&ifmgd->csa_connection_drop_work,
ieee80211_csa_connection_drop_work);
INIT_WORK(&ifmgd->request_smps_work, ieee80211_request_smps_work);
setup_timer(&ifmgd->timer, ieee80211_sta_timer,
(unsigned long) sdata);
@ -3525,7 +3548,7 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
struct cfg80211_deauth_request *req)
{
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
u8 frame_buf[DEAUTH_DISASSOC_LEN];
u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN];
mutex_lock(&ifmgd->mtx);
@ -3553,7 +3576,8 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
mutex_unlock(&ifmgd->mtx);
__cfg80211_send_deauth(sdata->dev, frame_buf, DEAUTH_DISASSOC_LEN);
__cfg80211_send_deauth(sdata->dev, frame_buf,
IEEE80211_DEAUTH_FRAME_LEN);
mutex_lock(&sdata->local->mtx);
ieee80211_recalc_idle(sdata->local);
@ -3567,7 +3591,7 @@ int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
{
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
u8 bssid[ETH_ALEN];
u8 frame_buf[DEAUTH_DISASSOC_LEN];
u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN];
mutex_lock(&ifmgd->mtx);
@ -3592,7 +3616,8 @@ int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
frame_buf);
mutex_unlock(&ifmgd->mtx);
__cfg80211_send_disassoc(sdata->dev, frame_buf, DEAUTH_DISASSOC_LEN);
__cfg80211_send_disassoc(sdata->dev, frame_buf,
IEEE80211_DEAUTH_FRAME_LEN);
mutex_lock(&sdata->local->mtx);
ieee80211_recalc_idle(sdata->local);

3
net/mac80211/offchannel.c
View File

@ -233,8 +233,7 @@ static void ieee80211_hw_roc_start(struct work_struct *work)
u32 dur = dep->duration;
dep->duration = dur - roc->duration;
roc->duration = dur;
list_del(&dep->list);
list_add(&dep->list, &roc->list);
list_move(&dep->list, &roc->list);
}
}
out_unlock:

35
net/mac80211/scan.c
View File

@ -407,7 +407,7 @@ static void ieee80211_scan_state_send_probe(struct ieee80211_local *local,
enum ieee80211_band band = local->hw.conf.channel->band;
sdata = rcu_dereference_protected(local->scan_sdata,
lockdep_is_held(&local->mtx));;
lockdep_is_held(&local->mtx));
for (i = 0; i < local->scan_req->n_ssids; i++)
ieee80211_send_probe_req(
@ -917,6 +917,7 @@ int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
struct cfg80211_sched_scan_request *req)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_sched_scan_ies sched_scan_ies;
int ret, i;
mutex_lock(&local->mtx);
@ -935,33 +936,28 @@ int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
if (!local->hw.wiphy->bands[i])
continue;
local->sched_scan_ies.ie[i] = kzalloc(2 +
IEEE80211_MAX_SSID_LEN +
sched_scan_ies.ie[i] = kzalloc(2 + IEEE80211_MAX_SSID_LEN +
local->scan_ies_len +
req->ie_len,
GFP_KERNEL);
if (!local->sched_scan_ies.ie[i]) {
if (!sched_scan_ies.ie[i]) {
ret = -ENOMEM;
goto out_free;
}
local->sched_scan_ies.len[i] =
ieee80211_build_preq_ies(local,
local->sched_scan_ies.ie[i],
sched_scan_ies.len[i] =
ieee80211_build_preq_ies(local, sched_scan_ies.ie[i],
req->ie, req->ie_len, i,
(u32) -1, 0);
}
ret = drv_sched_scan_start(local, sdata, req,
&local->sched_scan_ies);
if (ret == 0) {
ret = drv_sched_scan_start(local, sdata, req, &sched_scan_ies);
if (ret == 0)
rcu_assign_pointer(local->sched_scan_sdata, sdata);
goto out;
}
out_free:
while (i > 0)
kfree(local->sched_scan_ies.ie[--i]);
kfree(sched_scan_ies.ie[--i]);
out:
mutex_unlock(&local->mtx);
return ret;
@ -970,7 +966,7 @@ out:
int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_local *local = sdata->local;
int ret = 0, i;
int ret = 0;
mutex_lock(&local->mtx);
@ -979,12 +975,9 @@ int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data *sdata)
goto out;
}
if (rcu_access_pointer(local->sched_scan_sdata)) {
for (i = 0; i < IEEE80211_NUM_BANDS; i++)
kfree(local->sched_scan_ies.ie[i]);
if (rcu_access_pointer(local->sched_scan_sdata))
drv_sched_scan_stop(local, sdata);
}
out:
mutex_unlock(&local->mtx);
@ -1006,7 +999,6 @@ void ieee80211_sched_scan_stopped_work(struct work_struct *work)
struct ieee80211_local *local =
container_of(work, struct ieee80211_local,
sched_scan_stopped_work);
int i;
mutex_lock(&local->mtx);
@ -1015,9 +1007,6 @@ void ieee80211_sched_scan_stopped_work(struct work_struct *work)
return;
}
for (i = 0; i < IEEE80211_NUM_BANDS; i++)
kfree(local->sched_scan_ies.ie[i]);
rcu_assign_pointer(local->sched_scan_sdata, NULL);
mutex_unlock(&local->mtx);

121
net/mac80211/sta_info.c
View File

@ -91,6 +91,70 @@ static int sta_info_hash_del(struct ieee80211_local *local,
return -ENOENT;
}
static void free_sta_work(struct work_struct *wk)
{
struct sta_info *sta = container_of(wk, struct sta_info, free_sta_wk);
int ac, i;
struct tid_ampdu_tx *tid_tx;
struct ieee80211_sub_if_data *sdata = sta->sdata;
struct ieee80211_local *local = sdata->local;
/*
* At this point, when being called as call_rcu callback,
* neither mac80211 nor the driver can reference this
* sta struct any more except by still existing timers
* associated with this station that we clean up below.
*/
if (test_sta_flag(sta, WLAN_STA_PS_STA)) {
BUG_ON(!sdata->bss);
clear_sta_flag(sta, WLAN_STA_PS_STA);
atomic_dec(&sdata->bss->num_sta_ps);
sta_info_recalc_tim(sta);
}
for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
local->total_ps_buffered -= skb_queue_len(&sta->ps_tx_buf[ac]);
__skb_queue_purge(&sta->ps_tx_buf[ac]);
__skb_queue_purge(&sta->tx_filtered[ac]);
}
#ifdef CONFIG_MAC80211_MESH
if (ieee80211_vif_is_mesh(&sdata->vif)) {
mesh_accept_plinks_update(sdata);
mesh_plink_deactivate(sta);
del_timer_sync(&sta->plink_timer);
}
#endif
cancel_work_sync(&sta->drv_unblock_wk);
/*
* Destroy aggregation state here. It would be nice to wait for the
* driver to finish aggregation stop and then clean up, but for now
* drivers have to handle aggregation stop being requested, followed
* directly by station destruction.
*/
for (i = 0; i < STA_TID_NUM; i++) {
tid_tx = rcu_dereference_raw(sta->ampdu_mlme.tid_tx[i]);
if (!tid_tx)
continue;
__skb_queue_purge(&tid_tx->pending);
kfree(tid_tx);
}
sta_info_free(local, sta);
}
static void free_sta_rcu(struct rcu_head *h)
{
struct sta_info *sta = container_of(h, struct sta_info, rcu_head);
ieee80211_queue_work(&sta->local->hw, &sta->free_sta_wk);
}
/* protected by RCU */
struct sta_info *sta_info_get(struct ieee80211_sub_if_data *sdata,
const u8 *addr)
@ -241,6 +305,7 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
spin_lock_init(&sta->lock);
INIT_WORK(&sta->drv_unblock_wk, sta_unblock);
INIT_WORK(&sta->free_sta_wk, free_sta_work);
INIT_WORK(&sta->ampdu_mlme.work, ieee80211_ba_session_work);
mutex_init(&sta->ampdu_mlme.mtx);
@ -654,8 +719,7 @@ int __must_check __sta_info_destroy(struct sta_info *sta)
{
struct ieee80211_local *local;
struct ieee80211_sub_if_data *sdata;
int ret, i, ac;
struct tid_ampdu_tx *tid_tx;
int ret, i;
might_sleep();
@ -711,65 +775,14 @@ int __must_check __sta_info_destroy(struct sta_info *sta)
WARN_ON_ONCE(ret != 0);
}
/*
* At this point, after we wait for an RCU grace period,
* neither mac80211 nor the driver can reference this
* sta struct any more except by still existing timers
* associated with this station that we clean up below.
*/
synchronize_rcu();
if (test_sta_flag(sta, WLAN_STA_PS_STA)) {
BUG_ON(!sdata->bss);
clear_sta_flag(sta, WLAN_STA_PS_STA);
atomic_dec(&sdata->bss->num_sta_ps);
sta_info_recalc_tim(sta);
}
for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
local->total_ps_buffered -= skb_queue_len(&sta->ps_tx_buf[ac]);
__skb_queue_purge(&sta->ps_tx_buf[ac]);
__skb_queue_purge(&sta->tx_filtered[ac]);
}
#ifdef CONFIG_MAC80211_MESH
if (ieee80211_vif_is_mesh(&sdata->vif))
mesh_accept_plinks_update(sdata);
#endif
sta_dbg(sdata, "Removed STA %pM\n", sta->sta.addr);
cancel_work_sync(&sta->drv_unblock_wk);
cfg80211_del_sta(sdata->dev, sta->sta.addr, GFP_KERNEL);
rate_control_remove_sta_debugfs(sta);
ieee80211_sta_debugfs_remove(sta);
#ifdef CONFIG_MAC80211_MESH
if (ieee80211_vif_is_mesh(&sta->sdata->vif)) {
mesh_plink_deactivate(sta);
del_timer_sync(&sta->plink_timer);
}
#endif
/*
* Destroy aggregation state here. It would be nice to wait for the
* driver to finish aggregation stop and then clean up, but for now
* drivers have to handle aggregation stop being requested, followed
* directly by station destruction.
*/
for (i = 0; i < STA_TID_NUM; i++) {
tid_tx = rcu_dereference_raw(sta->ampdu_mlme.tid_tx[i]);
if (!tid_tx)
continue;
__skb_queue_purge(&tid_tx->pending);
kfree(tid_tx);
}
sta_info_free(local, sta);
call_rcu(&sta->rcu_head, free_sta_rcu);
return 0;
}

2
net/mac80211/sta_info.h
View File

@ -287,6 +287,7 @@ struct sta_ampdu_mlme {
struct sta_info {
/* General information, mostly static */
struct list_head list;
struct rcu_head rcu_head;
struct sta_info __rcu *hnext;
struct ieee80211_local *local;
struct ieee80211_sub_if_data *sdata;
@ -297,6 +298,7 @@ struct sta_info {
spinlock_t lock;
struct work_struct drv_unblock_wk;
struct work_struct free_sta_wk;
u16 listen_interval;

44
net/mac80211/status.c
View File

@ -517,30 +517,42 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
if (info->flags & IEEE80211_TX_INTFL_NL80211_FRAME_TX) {
u64 cookie = (unsigned long)skb;
acked = info->flags & IEEE80211_TX_STAT_ACK;
bool found = false;
if (ieee80211_is_nullfunc(hdr->frame_control) ||
ieee80211_is_qos_nullfunc(hdr->frame_control)) {
cfg80211_probe_status(skb->dev, hdr->addr1,
cookie, acked, GFP_ATOMIC);
} else if (skb->dev) {
cfg80211_mgmt_tx_status(
skb->dev->ieee80211_ptr, cookie, skb->data,
skb->len, acked, GFP_ATOMIC);
} else {
struct ieee80211_sub_if_data *p2p_sdata;
acked = info->flags & IEEE80211_TX_STAT_ACK;
rcu_read_lock();
p2p_sdata = rcu_dereference(local->p2p_sdata);
if (p2p_sdata) {
cfg80211_mgmt_tx_status(
&p2p_sdata->wdev, cookie, skb->data,
list_for_each_entry_rcu(sdata, &local->interfaces, list) {
if (!sdata->dev)
continue;
if (skb->dev != sdata->dev)
continue;
found = true;
break;
}
if (!skb->dev) {
sdata = rcu_dereference(local->p2p_sdata);
if (sdata)
found = true;
}
if (!found)
skb->dev = NULL;
else if (ieee80211_is_nullfunc(hdr->frame_control) ||
ieee80211_is_qos_nullfunc(hdr->frame_control)) {
cfg80211_probe_status(sdata->dev, hdr->addr1,
cookie, acked, GFP_ATOMIC);
} else {
cfg80211_mgmt_tx_status(&sdata->wdev, cookie, skb->data,
skb->len, acked, GFP_ATOMIC);
}
rcu_read_unlock();
}
}
if (unlikely(info->ack_frame_id)) {
struct sk_buff *ack_skb;

2
net/mac80211/tx.c
View File

@ -580,7 +580,7 @@ ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx)
tx->key = NULL;
else
skip_hw = (tx->key->conf.flags &
IEEE80211_KEY_FLAG_SW_MGMT) &&
IEEE80211_KEY_FLAG_SW_MGMT_TX) &&
ieee80211_is_mgmt(hdr->frame_control);
break;
case WLAN_CIPHER_SUITE_AES_CMAC:

51
net/mac80211/util.c
View File

@ -792,8 +792,11 @@ u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
elems->country_elem_len = elen;
break;
case WLAN_EID_PWR_CONSTRAINT:
if (elen != 1) {
elem_parse_failed = true;
break;
}
elems->pwr_constr_elem = pos;
elems->pwr_constr_elem_len = elen;
break;
case WLAN_EID_TIMEOUT_INTERVAL:
elems->timeout_int = pos;
@ -1004,6 +1007,45 @@ void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
ieee80211_tx_skb(sdata, skb);
}
void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
const u8 *bssid, u16 stype, u16 reason,
bool send_frame, u8 *frame_buf)
{
struct ieee80211_local *local = sdata->local;
struct sk_buff *skb;
struct ieee80211_mgmt *mgmt = (void *)frame_buf;
/* build frame */
mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | stype);
mgmt->duration = 0; /* initialize only */
mgmt->seq_ctrl = 0; /* initialize only */
memcpy(mgmt->da, bssid, ETH_ALEN);
memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
memcpy(mgmt->bssid, bssid, ETH_ALEN);
/* u.deauth.reason_code == u.disassoc.reason_code */
mgmt->u.deauth.reason_code = cpu_to_le16(reason);
if (send_frame) {
skb = dev_alloc_skb(local->hw.extra_tx_headroom +
IEEE80211_DEAUTH_FRAME_LEN);
if (!skb)
return;
skb_reserve(skb, local->hw.extra_tx_headroom);
/* copy in frame */
memcpy(skb_put(skb, IEEE80211_DEAUTH_FRAME_LEN),
mgmt, IEEE80211_DEAUTH_FRAME_LEN);
if (sdata->vif.type != NL80211_IFTYPE_STATION ||
!(sdata->u.mgd.flags & IEEE80211_STA_MFP_ENABLED))
IEEE80211_SKB_CB(skb)->flags |=
IEEE80211_TX_INTFL_DONT_ENCRYPT;
ieee80211_tx_skb(sdata, skb);
}
}
int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
const u8 *ie, size_t ie_len,
enum ieee80211_band band, u32 rate_mask,
@ -1564,14 +1606,13 @@ static int check_mgd_smps(struct ieee80211_if_managed *ifmgd,
return 0;
}
/* must hold iflist_mtx */
void ieee80211_recalc_smps(struct ieee80211_local *local)
{
struct ieee80211_sub_if_data *sdata;
enum ieee80211_smps_mode smps_mode = IEEE80211_SMPS_OFF;
int count = 0;
lockdep_assert_held(&local->iflist_mtx);
mutex_lock(&local->iflist_mtx);
/*
* This function could be improved to handle multiple
@ -1600,12 +1641,14 @@ void ieee80211_recalc_smps(struct ieee80211_local *local)
}
if (smps_mode == local->smps_mode)
return;
goto unlock;
set:
local->smps_mode = smps_mode;
/* changed flag is auto-detected for this */
ieee80211_hw_config(local, 0);
unlock:
mutex_unlock(&local->iflist_mtx);
}
static bool ieee80211_id_in_list(const u8 *ids, int n_ids, u8 id)