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Merge remote-tracking branch 'wireless/master' into mac80211

Browse source
This commit is contained in:
Johannes Berg 2012-10-15 17:20:54 +02:00
commit df9b42963f
9607 changed files with 613409 additions and 262054 deletions
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6
net/mac80211/aes_cmac.c
View file

@ -38,14 +38,10 @@ static void gf_mulx(u8 *pad)
static void aes_128_cmac_vector(struct crypto_cipher *tfm, size_t num_elem,
const u8 *addr[], const size_t *len, u8 *mac)
{
u8 scratch[2 * AES_BLOCK_SIZE];
u8 *cbc, *pad;
u8 cbc[AES_BLOCK_SIZE], pad[AES_BLOCK_SIZE];
const u8 *pos, *end;
size_t i, e, left, total_len;
cbc = scratch;
pad = scratch + AES_BLOCK_SIZE;
memset(cbc, 0, AES_BLOCK_SIZE);
total_len = 0;

2
net/mac80211/agg-tx.c
View file

@ -869,7 +869,7 @@ void ieee80211_process_addba_resp(struct ieee80211_local *local,
} else {
___ieee80211_stop_tx_ba_session(sta, tid, WLAN_BACK_INITIATOR,
true);
false);
}
out:

103
net/mac80211/cfg.c
View file

@ -20,7 +20,8 @@
#include "rate.h"
#include "mesh.h"
static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, char *name,
static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
const char *name,
enum nl80211_iftype type,
u32 *flags,
struct vif_params *params)
@ -102,6 +103,18 @@ static int ieee80211_change_iface(struct wiphy *wiphy,
return 0;
}
static int ieee80211_start_p2p_device(struct wiphy *wiphy,
struct wireless_dev *wdev)
{
return ieee80211_do_open(wdev, true);
}
static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
struct wireless_dev *wdev)
{
ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
}
static int ieee80211_set_noack_map(struct wiphy *wiphy,
struct net_device *dev,
u16 noack_map)
@ -158,6 +171,38 @@ 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);
@ -330,7 +375,7 @@ static void rate_idx_to_bitrate(struct rate_info *rate, struct sta_info *sta, in
if (!(rate->flags & RATE_INFO_FLAGS_MCS)) {
struct ieee80211_supported_band *sband;
sband = sta->local->hw.wiphy->bands[
sta->local->hw.conf.channel->band];
sta->local->oper_channel->band];
rate->legacy = sband->bitrates[idx].bitrate;
} else
rate->mcs = idx;
@ -725,25 +770,23 @@ static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
const u8 *resp, size_t resp_len)
{
struct sk_buff *new, *old;
struct probe_resp *new, *old;
if (!resp || !resp_len)
return 1;
old = rtnl_dereference(sdata->u.ap.probe_resp);
new = dev_alloc_skb(resp_len);
new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
if (!new)
return -ENOMEM;
memcpy(skb_put(new, resp_len), resp, resp_len);
new->len = resp_len;
memcpy(new->data, resp, resp_len);
rcu_assign_pointer(sdata->u.ap.probe_resp, new);
if (old) {
/* TODO: use call_rcu() */
synchronize_rcu();
dev_kfree_skb(old);
}
if (old)
kfree_rcu(old, rcu_head);
return 0;
}
@ -950,7 +993,7 @@ static void ieee80211_send_layer2_update(struct sta_info *sta)
/* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
* Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
memset(msg->da, 0xff, ETH_ALEN);
eth_broadcast_addr(msg->da);
memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
msg->len = htons(6);
msg->dsap = 0;
@ -1285,9 +1328,10 @@ static int ieee80211_change_station(struct wiphy *wiphy,
mutex_unlock(&local->sta_mtx);
if (sdata->vif.type == NL80211_IFTYPE_STATION &&
params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED))
params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
ieee80211_recalc_ps(local, -1);
ieee80211_recalc_ps_vif(sdata);
}
return 0;
}
@ -1660,7 +1704,7 @@ static int ieee80211_change_bss(struct wiphy *wiphy,
}
if (!sdata->vif.bss_conf.use_short_slot &&
sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
sdata->local->oper_channel->band == IEEE80211_BAND_5GHZ) {
sdata->vif.bss_conf.use_short_slot = true;
changed |= BSS_CHANGED_ERP_SLOT;
}
@ -1774,6 +1818,7 @@ static int ieee80211_scan(struct wiphy *wiphy,
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)
@ -1926,7 +1971,7 @@ static int ieee80211_set_tx_power(struct wiphy *wiphy,
enum nl80211_tx_power_setting type, int mbm)
{
struct ieee80211_local *local = wiphy_priv(wiphy);
struct ieee80211_channel *chan = local->hw.conf.channel;
struct ieee80211_channel *chan = local->oper_channel;
u32 changes = 0;
switch (type) {
@ -2026,9 +2071,7 @@ 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;
}
@ -2078,6 +2121,7 @@ static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
ieee80211_recalc_ps(local, -1);
ieee80211_recalc_ps_vif(sdata);
return 0;
}
@ -2460,6 +2504,9 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
if (!sdata->u.mgd.associated)
need_offchan = true;
break;
case NL80211_IFTYPE_P2P_DEVICE:
need_offchan = true;
break;
default:
return -EOPNOTSUPP;
}
@ -2652,6 +2699,7 @@ ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
u16 status_code, struct sk_buff *skb)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_local *local = sdata->local;
struct ieee80211_tdls_data *tf;
tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
@ -2671,8 +2719,10 @@ ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
tf->u.setup_req.capability =
cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
ieee80211_add_srates_ie(sdata, skb, false);
ieee80211_add_ext_srates_ie(sdata, skb, false);
ieee80211_add_srates_ie(sdata, skb, false,
local->oper_channel->band);
ieee80211_add_ext_srates_ie(sdata, skb, false,
local->oper_channel->band);
ieee80211_tdls_add_ext_capab(skb);
break;
case WLAN_TDLS_SETUP_RESPONSE:
@ -2685,8 +2735,10 @@ ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
tf->u.setup_resp.capability =
cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
ieee80211_add_srates_ie(sdata, skb, false);
ieee80211_add_ext_srates_ie(sdata, skb, false);
ieee80211_add_srates_ie(sdata, skb, false,
local->oper_channel->band);
ieee80211_add_ext_srates_ie(sdata, skb, false,
local->oper_channel->band);
ieee80211_tdls_add_ext_capab(skb);
break;
case WLAN_TDLS_SETUP_CONFIRM:
@ -2724,6 +2776,7 @@ ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev,
u16 status_code, struct sk_buff *skb)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_local *local = sdata->local;
struct ieee80211_mgmt *mgmt;
mgmt = (void *)skb_put(skb, 24);
@ -2746,8 +2799,10 @@ ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev,
mgmt->u.action.u.tdls_discover_resp.capability =
cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
ieee80211_add_srates_ie(sdata, skb, false);
ieee80211_add_ext_srates_ie(sdata, skb, false);
ieee80211_add_srates_ie(sdata, skb, false,
local->oper_channel->band);
ieee80211_add_ext_srates_ie(sdata, skb, false,
local->oper_channel->band);
ieee80211_tdls_add_ext_capab(skb);
break;
default:
@ -3004,6 +3059,8 @@ 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,

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;
}

36
net/mac80211/debugfs.c
View file

@ -63,8 +63,6 @@ DEBUGFS_READONLY_FILE(user_power, "%d",
local->user_power_level);
DEBUGFS_READONLY_FILE(power, "%d",
local->hw.conf.power_level);
DEBUGFS_READONLY_FILE(frequency, "%d",
local->hw.conf.channel->center_freq);
DEBUGFS_READONLY_FILE(total_ps_buffered, "%d",
local->total_ps_buffered);
DEBUGFS_READONLY_FILE(wep_iv, "%#08x",
@ -72,6 +70,7 @@ DEBUGFS_READONLY_FILE(wep_iv, "%#08x",
DEBUGFS_READONLY_FILE(rate_ctrl_alg, "%s",
local->rate_ctrl ? local->rate_ctrl->ops->name : "hw/driver");
#ifdef CONFIG_PM
static ssize_t reset_write(struct file *file, const char __user *user_buf,
size_t count, loff_t *ppos)
{
@ -90,33 +89,7 @@ static const struct file_operations reset_ops = {
.open = simple_open,
.llseek = noop_llseek,
};
static ssize_t channel_type_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ieee80211_local *local = file->private_data;
const char *buf;
switch (local->hw.conf.channel_type) {
case NL80211_CHAN_NO_HT:
buf = "no ht\n";
break;
case NL80211_CHAN_HT20:
buf = "ht20\n";
break;
case NL80211_CHAN_HT40MINUS:
buf = "ht40-\n";
break;
case NL80211_CHAN_HT40PLUS:
buf = "ht40+\n";
break;
default:
buf = "???";
break;
}
return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
}
#endif
static ssize_t hwflags_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
@ -205,7 +178,6 @@ static ssize_t queues_read(struct file *file, char __user *user_buf,
}
DEBUGFS_READONLY_FILE_OPS(hwflags);
DEBUGFS_READONLY_FILE_OPS(channel_type);
DEBUGFS_READONLY_FILE_OPS(queues);
/* statistics stuff */
@ -272,12 +244,12 @@ void debugfs_hw_add(struct ieee80211_local *local)
local->debugfs.keys = debugfs_create_dir("keys", phyd);
DEBUGFS_ADD(frequency);
DEBUGFS_ADD(total_ps_buffered);
DEBUGFS_ADD(wep_iv);
DEBUGFS_ADD(queues);
#ifdef CONFIG_PM
DEBUGFS_ADD_MODE(reset, 0200);
DEBUGFS_ADD(channel_type);
#endif
DEBUGFS_ADD(hwflags);
DEBUGFS_ADD(user_power);
DEBUGFS_ADD(power);

11
net/mac80211/driver-ops.h
View file

@ -9,7 +9,7 @@ static inline void check_sdata_in_driver(struct ieee80211_sub_if_data *sdata)
{
WARN(!(sdata->flags & IEEE80211_SDATA_IN_DRIVER),
"%s: Failed check-sdata-in-driver check, flags: 0x%x\n",
sdata->dev->name, sdata->flags);
sdata->dev ? sdata->dev->name : sdata->name, sdata->flags);
}
static inline struct ieee80211_sub_if_data *
@ -22,9 +22,11 @@ get_bss_sdata(struct ieee80211_sub_if_data *sdata)
return sdata;
}
static inline void drv_tx(struct ieee80211_local *local, struct sk_buff *skb)
static inline void drv_tx(struct ieee80211_local *local,
struct ieee80211_tx_control *control,
struct sk_buff *skb)
{
local->ops->tx(&local->hw, skb);
local->ops->tx(&local->hw, control, skb);
}
static inline void drv_get_et_strings(struct ieee80211_sub_if_data *sdata,
@ -526,6 +528,9 @@ static inline void drv_sta_rc_update(struct ieee80211_local *local,
sdata = get_bss_sdata(sdata);
check_sdata_in_driver(sdata);
WARN_ON(changed & IEEE80211_RC_SUPP_RATES_CHANGED &&
sdata->vif.type != NL80211_IFTYPE_ADHOC);
trace_drv_sta_rc_update(local, sdata, sta, changed);
if (local->ops->sta_rc_update)
local->ops->sta_rc_update(&local->hw, &sdata->vif,

50
net/mac80211/ibss.c
View file

@ -109,7 +109,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
memset(mgmt, 0, 24 + sizeof(mgmt->u.beacon));
mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
IEEE80211_STYPE_PROBE_RESP);
memset(mgmt->da, 0xff, ETH_ALEN);
eth_broadcast_addr(mgmt->da);
memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
memcpy(mgmt->bssid, ifibss->bssid, ETH_ALEN);
mgmt->u.beacon.beacon_int = cpu_to_le16(beacon_int);
@ -205,7 +205,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
mod_timer(&ifibss->timer,
round_jiffies(jiffies + IEEE80211_IBSS_MERGE_INTERVAL));
bss = cfg80211_inform_bss_frame(local->hw.wiphy, local->hw.conf.channel,
bss = cfg80211_inform_bss_frame(local->hw.wiphy, chan,
mgmt, skb->len, 0, GFP_KERNEL);
cfg80211_put_bss(bss);
netif_carrier_on(sdata->dev);
@ -278,7 +278,7 @@ static struct sta_info *ieee80211_ibss_finish_sta(struct sta_info *sta,
if (auth && !sdata->u.ibss.auth_frame_registrations) {
ibss_dbg(sdata,
"TX Auth SA=%pM DA=%pM BSSID=%pM (auth_transaction=1)\n",
sdata->vif.addr, sdata->u.ibss.bssid, addr);
sdata->vif.addr, addr, sdata->u.ibss.bssid);
ieee80211_send_auth(sdata, 1, WLAN_AUTH_OPEN, NULL, 0,
addr, sdata->u.ibss.bssid, NULL, 0, 0);
}
@ -294,7 +294,7 @@ ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
struct ieee80211_local *local = sdata->local;
struct sta_info *sta;
int band = local->hw.conf.channel->band;
int band = local->oper_channel->band;
/*
* XXX: Consider removing the least recently used entry and
@ -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.
@ -459,8 +487,11 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
}
}
if (sta && rates_updated)
if (sta && rates_updated) {
drv_sta_rc_update(local, sdata, &sta->sta,
IEEE80211_RC_SUPP_RATES_CHANGED);
rate_control_rate_init(sta);
}
rcu_read_unlock();
}
@ -561,7 +592,7 @@ void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
struct ieee80211_local *local = sdata->local;
struct sta_info *sta;
int band = local->hw.conf.channel->band;
int band = local->oper_channel->band;
/*
* XXX: Consider removing the least recently used entry and
@ -759,7 +790,7 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
return;
}
sdata_info(sdata, "IBSS not allowed on %d MHz\n",
local->hw.conf.channel->center_freq);
local->oper_channel->center_freq);
/* No IBSS found - decrease scan interval and continue
* scanning. */
@ -899,6 +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:

53
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;
@ -193,8 +195,6 @@ struct ieee80211_tx_data {
struct sta_info *sta;
struct ieee80211_key *key;
struct ieee80211_channel *channel;
unsigned int flags;
};
@ -274,9 +274,15 @@ struct beacon_data {
struct rcu_head rcu_head;
};
struct probe_resp {
struct rcu_head rcu_head;
int len;
u8 data[0];
};
struct ieee80211_if_ap {
struct beacon_data __rcu *beacon;
struct sk_buff __rcu *probe_resp;
struct probe_resp __rcu *probe_resp;
struct list_head vlans;
@ -359,6 +365,7 @@ enum ieee80211_sta_flags {
IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9),
IEEE80211_STA_DISABLE_40MHZ = BIT(10),
IEEE80211_STA_DISABLE_VHT = BIT(11),
};
struct ieee80211_mgd_auth_data {
@ -406,6 +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;
@ -965,7 +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;
@ -1052,7 +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;
@ -1075,6 +1082,8 @@ struct ieee80211_local {
struct idr ack_status_frames;
spinlock_t ack_status_lock;
struct ieee80211_sub_if_data __rcu *p2p_sdata;
/* dummy netdev for use w/ NAPI */
struct net_device napi_dev;
@ -1131,7 +1140,7 @@ struct ieee802_11_elems {
u8 *prep;
u8 *perr;
struct ieee80211_rann_ie *rann;
u8 *ch_switch_elem;
struct ieee80211_channel_sw_ie *ch_switch_ie;
u8 *country_elem;
u8 *pwr_constr_elem;
u8 *quiet_elem; /* first quite element */
@ -1157,9 +1166,7 @@ struct ieee802_11_elems {
u8 preq_len;
u8 prep_len;
u8 perr_len;
u8 ch_switch_elem_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;
@ -1202,6 +1209,7 @@ int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
void ieee80211_send_pspoll(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata);
void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
int ieee80211_max_network_latency(struct notifier_block *nb,
unsigned long data, void *dummy);
int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
@ -1291,6 +1299,8 @@ void ieee80211_remove_interfaces(struct ieee80211_local *local);
void ieee80211_recalc_idle(struct ieee80211_local *local);
void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
const int offset);
int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
{
@ -1358,7 +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);
@ -1372,18 +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 */
@ -1425,7 +1422,6 @@ void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
struct ieee80211_hdr *hdr);
void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
struct ieee80211_hdr *hdr, bool ack);
void ieee80211_beacon_connection_loss_work(struct work_struct *work);
void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
enum queue_stop_reason reason);
@ -1451,19 +1447,24 @@ 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,
u8 channel);
struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
u8 *dst, u32 ratemask,
struct ieee80211_channel *chan,
const u8 *ssid, size_t ssid_len,
const u8 *ie, size_t ie_len,
bool directed);
void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
const u8 *ssid, size_t ssid_len,
const u8 *ie, size_t ie_len,
u32 ratemask, bool directed, bool no_cck);
u32 ratemask, bool directed, bool no_cck,
struct ieee80211_channel *channel);
void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
const size_t supp_rates_len,
@ -1487,9 +1488,11 @@ u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
u32 cap);
int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
struct sk_buff *skb, bool need_basic);
struct sk_buff *skb, bool need_basic,
enum ieee80211_band band);
int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
struct sk_buff *skb, bool need_basic);
struct sk_buff *skb, bool need_basic,
enum ieee80211_band band);
/* channel management */
enum ieee80211_chan_mode {

308
net/mac80211/iface.c
View file

@ -100,6 +100,10 @@ static u32 __ieee80211_recalc_idle(struct ieee80211_local *local)
sdata->vif.bss_conf.idle = true;
continue;
}
if (sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE)
continue;
/* count everything else */
sdata->vif.bss_conf.idle = false;
count++;
@ -121,7 +125,8 @@ static u32 __ieee80211_recalc_idle(struct ieee80211_local *local)
list_for_each_entry(sdata, &local->interfaces, list) {
if (sdata->vif.type == NL80211_IFTYPE_MONITOR ||
sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE)
continue;
if (sdata->old_idle == sdata->vif.bss_conf.idle)
continue;
@ -204,6 +209,8 @@ static inline int identical_mac_addr_allowed(int type1, int type2)
{
return type1 == NL80211_IFTYPE_MONITOR ||
type2 == NL80211_IFTYPE_MONITOR ||
type1 == NL80211_IFTYPE_P2P_DEVICE ||
type2 == NL80211_IFTYPE_P2P_DEVICE ||
(type1 == NL80211_IFTYPE_AP && type2 == NL80211_IFTYPE_WDS) ||
(type1 == NL80211_IFTYPE_WDS &&
(type2 == NL80211_IFTYPE_WDS ||
@ -271,13 +278,15 @@ static int ieee80211_check_queues(struct ieee80211_sub_if_data *sdata)
int n_queues = sdata->local->hw.queues;
int i;
for (i = 0; i < IEEE80211_NUM_ACS; i++) {
if (WARN_ON_ONCE(sdata->vif.hw_queue[i] ==
IEEE80211_INVAL_HW_QUEUE))
return -EINVAL;
if (WARN_ON_ONCE(sdata->vif.hw_queue[i] >=
n_queues))
return -EINVAL;
if (sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE) {
for (i = 0; i < IEEE80211_NUM_ACS; i++) {
if (WARN_ON_ONCE(sdata->vif.hw_queue[i] ==
IEEE80211_INVAL_HW_QUEUE))
return -EINVAL;
if (WARN_ON_ONCE(sdata->vif.hw_queue[i] >=
n_queues))
return -EINVAL;
}
}
if ((sdata->vif.type != NL80211_IFTYPE_AP) ||
@ -406,9 +415,10 @@ static void ieee80211_del_virtual_monitor(struct ieee80211_local *local)
* an error on interface type changes that have been pre-checked, so most
* checks should be in ieee80211_check_concurrent_iface.
*/
static int ieee80211_do_open(struct net_device *dev, bool coming_up)
int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
struct net_device *dev = wdev->netdev;
struct ieee80211_local *local = sdata->local;
struct sta_info *sta;
u32 changed = 0;
@ -443,6 +453,7 @@ static int ieee80211_do_open(struct net_device *dev, bool coming_up)
case NL80211_IFTYPE_STATION:
case NL80211_IFTYPE_MONITOR:
case NL80211_IFTYPE_ADHOC:
case NL80211_IFTYPE_P2P_DEVICE:
/* no special treatment */
break;
case NL80211_IFTYPE_UNSPECIFIED:
@ -471,7 +482,7 @@ static int ieee80211_do_open(struct net_device *dev, bool coming_up)
* Copy the hopefully now-present MAC address to
* this interface, if it has the special null one.
*/
if (is_zero_ether_addr(dev->dev_addr)) {
if (dev && is_zero_ether_addr(dev->dev_addr)) {
memcpy(dev->dev_addr,
local->hw.wiphy->perm_addr,
ETH_ALEN);
@ -536,15 +547,23 @@ static int ieee80211_do_open(struct net_device *dev, bool coming_up)
local->fif_probe_req++;
}
changed |= ieee80211_reset_erp_info(sdata);
if (sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE)
changed |= ieee80211_reset_erp_info(sdata);
ieee80211_bss_info_change_notify(sdata, changed);
if (sdata->vif.type == NL80211_IFTYPE_STATION ||
sdata->vif.type == NL80211_IFTYPE_ADHOC ||
sdata->vif.type == NL80211_IFTYPE_AP)
switch (sdata->vif.type) {
case NL80211_IFTYPE_STATION:
case NL80211_IFTYPE_ADHOC:
case NL80211_IFTYPE_AP:
case NL80211_IFTYPE_MESH_POINT:
netif_carrier_off(dev);
else
break;
case NL80211_IFTYPE_WDS:
case NL80211_IFTYPE_P2P_DEVICE:
break;
default:
netif_carrier_on(dev);
}
/*
* set default queue parameters so drivers don't
@ -576,6 +595,9 @@ static int ieee80211_do_open(struct net_device *dev, bool coming_up)
}
rate_control_rate_init(sta);
netif_carrier_on(dev);
} else if (sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE) {
rcu_assign_pointer(local->p2p_sdata, sdata);
}
/*
@ -601,7 +623,8 @@ static int ieee80211_do_open(struct net_device *dev, bool coming_up)
ieee80211_recalc_ps(local, -1);
netif_tx_start_all_queues(dev);
if (dev)
netif_tx_start_all_queues(dev);
return 0;
err_del_interface:
@ -631,7 +654,7 @@ static int ieee80211_open(struct net_device *dev)
if (err)
return err;
return ieee80211_do_open(dev, true);
return ieee80211_do_open(&sdata->wdev, true);
}
static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
@ -652,7 +675,8 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
/*
* Stop TX on this interface first.
*/
netif_tx_stop_all_queues(sdata->dev);
if (sdata->dev)
netif_tx_stop_all_queues(sdata->dev);
ieee80211_roc_purge(sdata);
@ -691,14 +715,16 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
local->fif_probe_req--;
}
netif_addr_lock_bh(sdata->dev);
spin_lock_bh(&local->filter_lock);
__hw_addr_unsync(&local->mc_list, &sdata->dev->mc,
sdata->dev->addr_len);
spin_unlock_bh(&local->filter_lock);
netif_addr_unlock_bh(sdata->dev);
if (sdata->dev) {
netif_addr_lock_bh(sdata->dev);
spin_lock_bh(&local->filter_lock);
__hw_addr_unsync(&local->mc_list, &sdata->dev->mc,
sdata->dev->addr_len);
spin_unlock_bh(&local->filter_lock);
netif_addr_unlock_bh(sdata->dev);
ieee80211_configure_filter(local);
ieee80211_configure_filter(local);
}
del_timer_sync(&local->dynamic_ps_timer);
cancel_work_sync(&local->dynamic_ps_enable_work);
@ -708,7 +734,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
struct ieee80211_sub_if_data *vlan, *tmpsdata;
struct beacon_data *old_beacon =
rtnl_dereference(sdata->u.ap.beacon);
struct sk_buff *old_probe_resp =
struct probe_resp *old_probe_resp =
rtnl_dereference(sdata->u.ap.probe_resp);
/* sdata_running will return false, so this will disable */
@ -720,7 +746,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
synchronize_rcu();
kfree(old_beacon);
kfree_skb(old_probe_resp);
kfree(old_probe_resp);
/* down all dependent devices, that is VLANs */
list_for_each_entry_safe(vlan, tmpsdata, &sdata->u.ap.vlans,
@ -759,24 +785,29 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
ieee80211_adjust_monitor_flags(sdata, -1);
ieee80211_configure_filter(local);
break;
case NL80211_IFTYPE_P2P_DEVICE:
/* relies on synchronize_rcu() below */
rcu_assign_pointer(local->p2p_sdata, NULL);
/* fall through */
default:
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();
skb_queue_purge(&sdata->skb_queue);
rcu_barrier();
/*
* Disable beaconing here for mesh only, AP and IBSS
* are already taken care of.
* free_sta_rcu() enqueues a work for the actual
* sta cleanup, so we need to flush it while
* sdata is still valid.
*/
if (sdata->vif.type == NL80211_IFTYPE_MESH_POINT)
ieee80211_bss_info_change_notify(sdata,
BSS_CHANGED_BEACON_ENABLED);
flush_workqueue(local->workqueue);
skb_queue_purge(&sdata->skb_queue);
/*
* Free all remaining keys, there shouldn't be any,
@ -877,9 +908,8 @@ static void ieee80211_set_multicast_list(struct net_device *dev)
* Called when the netdev is removed or, by the code below, before
* the interface type changes.
*/
static void ieee80211_teardown_sdata(struct net_device *dev)
static void ieee80211_teardown_sdata(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_local *local = sdata->local;
int flushed;
int i;
@ -900,6 +930,11 @@ static void ieee80211_teardown_sdata(struct net_device *dev)
WARN_ON(flushed);
}
static void ieee80211_uninit(struct net_device *dev)
{
ieee80211_teardown_sdata(IEEE80211_DEV_TO_SUB_IF(dev));
}
static u16 ieee80211_netdev_select_queue(struct net_device *dev,
struct sk_buff *skb)
{
@ -909,7 +944,7 @@ static u16 ieee80211_netdev_select_queue(struct net_device *dev,
static const struct net_device_ops ieee80211_dataif_ops = {
.ndo_open = ieee80211_open,
.ndo_stop = ieee80211_stop,
.ndo_uninit = ieee80211_teardown_sdata,
.ndo_uninit = ieee80211_uninit,
.ndo_start_xmit = ieee80211_subif_start_xmit,
.ndo_set_rx_mode = ieee80211_set_multicast_list,
.ndo_change_mtu = ieee80211_change_mtu,
@ -940,7 +975,7 @@ static u16 ieee80211_monitor_select_queue(struct net_device *dev,
static const struct net_device_ops ieee80211_monitorif_ops = {
.ndo_open = ieee80211_open,
.ndo_stop = ieee80211_stop,
.ndo_uninit = ieee80211_teardown_sdata,
.ndo_uninit = ieee80211_uninit,
.ndo_start_xmit = ieee80211_monitor_start_xmit,
.ndo_set_rx_mode = ieee80211_set_multicast_list,
.ndo_change_mtu = ieee80211_change_mtu,
@ -1099,7 +1134,6 @@ static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata,
/* and set some type-dependent values */
sdata->vif.type = type;
sdata->vif.p2p = false;
sdata->dev->netdev_ops = &ieee80211_dataif_ops;
sdata->wdev.iftype = type;
sdata->control_port_protocol = cpu_to_be16(ETH_P_PAE);
@ -1107,8 +1141,11 @@ static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata,
sdata->noack_map = 0;
/* only monitor differs */
sdata->dev->type = ARPHRD_ETHER;
/* only monitor/p2p-device differ */
if (sdata->dev) {
sdata->dev->netdev_ops = &ieee80211_dataif_ops;
sdata->dev->type = ARPHRD_ETHER;
}
skb_queue_head_init(&sdata->skb_queue);
INIT_WORK(&sdata->work, ieee80211_iface_work);
@ -1146,6 +1183,7 @@ static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata,
break;
case NL80211_IFTYPE_WDS:
case NL80211_IFTYPE_AP_VLAN:
case NL80211_IFTYPE_P2P_DEVICE:
break;
case NL80211_IFTYPE_UNSPECIFIED:
case NUM_NL80211_IFTYPES:
@ -1156,18 +1194,6 @@ static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata,
ieee80211_debugfs_add_netdev(sdata);
}
static void ieee80211_clean_sdata(struct ieee80211_sub_if_data *sdata)
{
switch (sdata->vif.type) {
case NL80211_IFTYPE_MESH_POINT:
mesh_path_flush_by_iface(sdata);
break;
default:
break;
}
}
static int ieee80211_runtime_change_iftype(struct ieee80211_sub_if_data *sdata,
enum nl80211_iftype type)
{
@ -1225,7 +1251,7 @@ static int ieee80211_runtime_change_iftype(struct ieee80211_sub_if_data *sdata,
ieee80211_do_stop(sdata, false);
ieee80211_teardown_sdata(sdata->dev);
ieee80211_teardown_sdata(sdata);
ret = drv_change_interface(local, sdata, internal_type, p2p);
if (ret)
@ -1240,7 +1266,7 @@ static int ieee80211_runtime_change_iftype(struct ieee80211_sub_if_data *sdata,
ieee80211_setup_sdata(sdata, type);
err = ieee80211_do_open(sdata->dev, false);
err = ieee80211_do_open(&sdata->wdev, false);
WARN(err, "type change: do_open returned %d", err);
return ret;
@ -1267,14 +1293,14 @@ int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
return ret;
} else {
/* Purge and reset type-dependent state. */
ieee80211_teardown_sdata(sdata->dev);
ieee80211_teardown_sdata(sdata);
ieee80211_setup_sdata(sdata, type);
}
/* reset some values that shouldn't be kept across type changes */
sdata->vif.bss_conf.basic_rates =
ieee80211_mandatory_rates(sdata->local,
sdata->local->hw.conf.channel->band);
sdata->local->oper_channel->band);
sdata->drop_unencrypted = 0;
if (type == NL80211_IFTYPE_STATION)
sdata->u.mgd.use_4addr = false;
@ -1283,8 +1309,7 @@ int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
}
static void ieee80211_assign_perm_addr(struct ieee80211_local *local,
struct net_device *dev,
enum nl80211_iftype type)
u8 *perm_addr, enum nl80211_iftype type)
{
struct ieee80211_sub_if_data *sdata;
u64 mask, start, addr, val, inc;
@ -1293,13 +1318,12 @@ static void ieee80211_assign_perm_addr(struct ieee80211_local *local,
int i;
/* default ... something at least */
memcpy(dev->perm_addr, local->hw.wiphy->perm_addr, ETH_ALEN);
memcpy(perm_addr, local->hw.wiphy->perm_addr, ETH_ALEN);
if (is_zero_ether_addr(local->hw.wiphy->addr_mask) &&
local->hw.wiphy->n_addresses <= 1)
return;
mutex_lock(&local->iflist_mtx);
switch (type) {
@ -1312,11 +1336,24 @@ static void ieee80211_assign_perm_addr(struct ieee80211_local *local,
list_for_each_entry(sdata, &local->interfaces, list) {
if (sdata->vif.type != NL80211_IFTYPE_AP)
continue;
memcpy(dev->perm_addr, sdata->vif.addr, ETH_ALEN);
memcpy(perm_addr, sdata->vif.addr, ETH_ALEN);
break;
}
/* keep default if no AP interface present */
break;
case NL80211_IFTYPE_P2P_CLIENT:
case NL80211_IFTYPE_P2P_GO:
if (local->hw.flags & IEEE80211_HW_P2P_DEV_ADDR_FOR_INTF) {
list_for_each_entry(sdata, &local->interfaces, list) {
if (sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE)
continue;
if (!ieee80211_sdata_running(sdata))
continue;
memcpy(perm_addr, sdata->vif.addr, ETH_ALEN);
goto out_unlock;
}
}
/* otherwise fall through */
default:
/* assign a new address if possible -- try n_addresses first */
for (i = 0; i < local->hw.wiphy->n_addresses; i++) {
@ -1331,7 +1368,7 @@ static void ieee80211_assign_perm_addr(struct ieee80211_local *local,
}
if (!used) {
memcpy(dev->perm_addr,
memcpy(perm_addr,
local->hw.wiphy->addresses[i].addr,
ETH_ALEN);
break;
@ -1382,7 +1419,7 @@ static void ieee80211_assign_perm_addr(struct ieee80211_local *local,
}
if (!used) {
memcpy(dev->perm_addr, tmp_addr, ETH_ALEN);
memcpy(perm_addr, tmp_addr, ETH_ALEN);
break;
}
addr = (start & ~mask) | (val & mask);
@ -1391,6 +1428,7 @@ static void ieee80211_assign_perm_addr(struct ieee80211_local *local,
break;
}
out_unlock:
mutex_unlock(&local->iflist_mtx);
}
@ -1398,49 +1436,68 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name,
struct wireless_dev **new_wdev, enum nl80211_iftype type,
struct vif_params *params)
{
struct net_device *ndev;
struct net_device *ndev = NULL;
struct ieee80211_sub_if_data *sdata = NULL;
int ret, i;
int txqs = 1;
ASSERT_RTNL();
if (local->hw.queues >= IEEE80211_NUM_ACS)
txqs = IEEE80211_NUM_ACS;
if (type == NL80211_IFTYPE_P2P_DEVICE) {
struct wireless_dev *wdev;
ndev = alloc_netdev_mqs(sizeof(*sdata) + local->hw.vif_data_size,
name, ieee80211_if_setup, txqs, 1);
if (!ndev)
return -ENOMEM;
dev_net_set(ndev, wiphy_net(local->hw.wiphy));
sdata = kzalloc(sizeof(*sdata) + local->hw.vif_data_size,
GFP_KERNEL);
if (!sdata)
return -ENOMEM;
wdev = &sdata->wdev;
ndev->needed_headroom = local->tx_headroom +
4*6 /* four MAC addresses */
+ 2 + 2 + 2 + 2 /* ctl, dur, seq, qos */
+ 6 /* mesh */
+ 8 /* rfc1042/bridge tunnel */
- ETH_HLEN /* ethernet hard_header_len */
+ IEEE80211_ENCRYPT_HEADROOM;
ndev->needed_tailroom = IEEE80211_ENCRYPT_TAILROOM;
sdata->dev = NULL;
strlcpy(sdata->name, name, IFNAMSIZ);
ieee80211_assign_perm_addr(local, wdev->address, type);
memcpy(sdata->vif.addr, wdev->address, ETH_ALEN);
} else {
if (local->hw.queues >= IEEE80211_NUM_ACS)
txqs = IEEE80211_NUM_ACS;
ret = dev_alloc_name(ndev, ndev->name);
if (ret < 0)
goto fail;
ndev = alloc_netdev_mqs(sizeof(*sdata) +
local->hw.vif_data_size,
name, ieee80211_if_setup, txqs, 1);
if (!ndev)
return -ENOMEM;
dev_net_set(ndev, wiphy_net(local->hw.wiphy));
ieee80211_assign_perm_addr(local, ndev, type);
memcpy(ndev->dev_addr, ndev->perm_addr, ETH_ALEN);
SET_NETDEV_DEV(ndev, wiphy_dev(local->hw.wiphy));
ndev->needed_headroom = local->tx_headroom +
4*6 /* four MAC addresses */
+ 2 + 2 + 2 + 2 /* ctl, dur, seq, qos */
+ 6 /* mesh */
+ 8 /* rfc1042/bridge tunnel */
- ETH_HLEN /* ethernet hard_header_len */
+ IEEE80211_ENCRYPT_HEADROOM;
ndev->needed_tailroom = IEEE80211_ENCRYPT_TAILROOM;
/* don't use IEEE80211_DEV_TO_SUB_IF because it checks too much */
sdata = netdev_priv(ndev);
ndev->ieee80211_ptr = &sdata->wdev;
memcpy(sdata->vif.addr, ndev->dev_addr, ETH_ALEN);
memcpy(sdata->name, ndev->name, IFNAMSIZ);
ret = dev_alloc_name(ndev, ndev->name);
if (ret < 0) {
free_netdev(ndev);
return ret;
}
ieee80211_assign_perm_addr(local, ndev->perm_addr, type);
memcpy(ndev->dev_addr, ndev->perm_addr, ETH_ALEN);
SET_NETDEV_DEV(ndev, wiphy_dev(local->hw.wiphy));
/* don't use IEEE80211_DEV_TO_SUB_IF -- it checks too much */
sdata = netdev_priv(ndev);
ndev->ieee80211_ptr = &sdata->wdev;
memcpy(sdata->vif.addr, ndev->dev_addr, ETH_ALEN);
memcpy(sdata->name, ndev->name, IFNAMSIZ);
sdata->dev = ndev;
}
/* initialise type-independent data */
sdata->wdev.wiphy = local->hw.wiphy;
sdata->local = local;
sdata->dev = ndev;
#ifdef CONFIG_INET
sdata->arp_filter_state = true;
#endif
@ -1469,18 +1526,22 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name,
/* setup type-dependent data */
ieee80211_setup_sdata(sdata, type);
if (params) {
ndev->ieee80211_ptr->use_4addr = params->use_4addr;
if (type == NL80211_IFTYPE_STATION)
sdata->u.mgd.use_4addr = params->use_4addr;
if (ndev) {
if (params) {
ndev->ieee80211_ptr->use_4addr = params->use_4addr;
if (type == NL80211_IFTYPE_STATION)
sdata->u.mgd.use_4addr = params->use_4addr;
}
ndev->features |= local->hw.netdev_features;
ret = register_netdevice(ndev);
if (ret) {
free_netdev(ndev);
return ret;
}
}
ndev->features |= local->hw.netdev_features;
ret = register_netdevice(ndev);
if (ret)
goto fail;
mutex_lock(&local->iflist_mtx);
list_add_tail_rcu(&sdata->list, &local->interfaces);
mutex_unlock(&local->iflist_mtx);
@ -1489,10 +1550,6 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name,
*new_wdev = &sdata->wdev;
return 0;
fail:
free_netdev(ndev);
return ret;
}
void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata)
@ -1503,11 +1560,22 @@ void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata)
list_del_rcu(&sdata->list);
mutex_unlock(&sdata->local->iflist_mtx);
/* clean up type-dependent data */
ieee80211_clean_sdata(sdata);
synchronize_rcu();
unregister_netdevice(sdata->dev);
if (sdata->dev) {
unregister_netdevice(sdata->dev);
} else {
cfg80211_unregister_wdev(&sdata->wdev);
kfree(sdata);
}
}
void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata)
{
if (WARN_ON_ONCE(!test_bit(SDATA_STATE_RUNNING, &sdata->state)))
return;
ieee80211_do_stop(sdata, true);
ieee80211_teardown_sdata(sdata);
}
/*
@ -1518,6 +1586,7 @@ void ieee80211_remove_interfaces(struct ieee80211_local *local)
{
struct ieee80211_sub_if_data *sdata, *tmp;
LIST_HEAD(unreg_list);
LIST_HEAD(wdev_list);
ASSERT_RTNL();
@ -1525,13 +1594,20 @@ void ieee80211_remove_interfaces(struct ieee80211_local *local)
list_for_each_entry_safe(sdata, tmp, &local->interfaces, list) {
list_del(&sdata->list);
ieee80211_clean_sdata(sdata);
unregister_netdevice_queue(sdata->dev, &unreg_list);
if (sdata->dev)
unregister_netdevice_queue(sdata->dev, &unreg_list);
else
list_add(&sdata->list, &wdev_list);
}
mutex_unlock(&local->iflist_mtx);
unregister_netdevice_many(&unreg_list);
list_del(&unreg_list);
list_for_each_entry_safe(sdata, tmp, &wdev_list, list) {
list_del(&sdata->list);
cfg80211_unregister_wdev(&sdata->wdev);
kfree(sdata);
}
}
static int netdev_notify(struct notifier_block *nb,

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);

2
net/mac80211/led.c
View file

@ -276,7 +276,7 @@ static void ieee80211_stop_tpt_led_trig(struct ieee80211_local *local)
read_lock(&tpt_trig->trig.leddev_list_lock);
list_for_each_entry(led_cdev, &tpt_trig->trig.led_cdevs, trig_list)
led_brightness_set(led_cdev, LED_OFF);
led_set_brightness(led_cdev, LED_OFF);
read_unlock(&tpt_trig->trig.leddev_list_lock);
}

31
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);
@ -207,6 +205,10 @@ void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
sdata->vif.bss_conf.bssid = NULL;
else if (ieee80211_vif_is_mesh(&sdata->vif)) {
sdata->vif.bss_conf.bssid = zero;
} else if (sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE) {
sdata->vif.bss_conf.bssid = sdata->vif.addr;
WARN_ONCE(changed & ~(BSS_CHANGED_IDLE),
"P2P Device BSS changed %#x", changed);
} else {
WARN_ON(1);
return;
@ -362,9 +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
@ -514,6 +514,11 @@ ieee80211_default_mgmt_stypes[NUM_NL80211_IFTYPES] = {
BIT(IEEE80211_STYPE_AUTH >> 4) |
BIT(IEEE80211_STYPE_DEAUTH >> 4),
},
[NL80211_IFTYPE_P2P_DEVICE] = {
.tx = 0xffff,
.rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
},
};
static const struct ieee80211_ht_cap mac80211_ht_capa_mod_mask = {
@ -536,6 +541,11 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
int priv_size, i;
struct wiphy *wiphy;
if (WARN_ON(!ops->tx || !ops->start || !ops->stop || !ops->config ||
!ops->add_interface || !ops->remove_interface ||
!ops->configure_filter))
return NULL;
if (WARN_ON(ops->sta_state && (ops->sta_add || ops->sta_remove)))
return NULL;
@ -588,13 +598,6 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
local->hw.priv = (char *)local + ALIGN(sizeof(*local), NETDEV_ALIGN);
BUG_ON(!ops->tx);
BUG_ON(!ops->start);
BUG_ON(!ops->stop);
BUG_ON(!ops->config);
BUG_ON(!ops->add_interface);
BUG_ON(!ops->remove_interface);
BUG_ON(!ops->configure_filter);
local->ops = ops;
/* set up some defaults */

49
net/mac80211/mesh.c
View file

@ -109,11 +109,11 @@ bool mesh_matches_local(struct ieee80211_sub_if_data *sdata,
/* Disallow HT40+/- mismatch */
if (ie->ht_operation &&
(local->_oper_channel_type == NL80211_CHAN_HT40MINUS ||
local->_oper_channel_type == NL80211_CHAN_HT40PLUS) &&
(sdata->vif.bss_conf.channel_type == NL80211_CHAN_HT40MINUS ||
sdata->vif.bss_conf.channel_type == NL80211_CHAN_HT40PLUS) &&
(sta_channel_type == NL80211_CHAN_HT40MINUS ||
sta_channel_type == NL80211_CHAN_HT40PLUS) &&
local->_oper_channel_type != sta_channel_type)
sdata->vif.bss_conf.channel_type != sta_channel_type)
goto mismatch;
return true;
@ -136,10 +136,13 @@ bool mesh_peer_accepts_plinks(struct ieee802_11_elems *ie)
* mesh_accept_plinks_update - update accepting_plink in local mesh beacons
*
* @sdata: mesh interface in which mesh beacons are going to be updated
*
* Returns: beacon changed flag if the beacon content changed.
*/
void mesh_accept_plinks_update(struct ieee80211_sub_if_data *sdata)
u32 mesh_accept_plinks_update(struct ieee80211_sub_if_data *sdata)
{
bool free_plinks;
u32 changed = 0;
/* In case mesh_plink_free_count > 0 and mesh_plinktbl_capacity == 0,
* the mesh interface might be able to establish plinks with peers that
@ -149,8 +152,12 @@ void mesh_accept_plinks_update(struct ieee80211_sub_if_data *sdata)
*/
free_plinks = mesh_plink_availables(sdata);
if (free_plinks != sdata->u.mesh.accepting_plinks)
ieee80211_mesh_housekeeping_timer((unsigned long) sdata);
if (free_plinks != sdata->u.mesh.accepting_plinks) {
sdata->u.mesh.accepting_plinks = free_plinks;
changed = BSS_CHANGED_BEACON;
}
return changed;
}
int mesh_rmc_init(struct ieee80211_sub_if_data *sdata)
@ -262,7 +269,6 @@ mesh_add_meshconf_ie(struct sk_buff *skb, struct ieee80211_sub_if_data *sdata)
neighbors = (neighbors > 15) ? 15 : neighbors;
*pos++ = neighbors << 1;
/* Mesh capability */
ifmsh->accepting_plinks = mesh_plink_availables(sdata);
*pos = MESHCONF_CAPAB_FORWARDING;
*pos |= ifmsh->accepting_plinks ?
MESHCONF_CAPAB_ACCEPT_PLINKS : 0x00;
@ -349,17 +355,18 @@ int mesh_add_ds_params_ie(struct sk_buff *skb,
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_supported_band *sband;
struct ieee80211_channel *chan = local->oper_channel;
u8 *pos;
if (skb_tailroom(skb) < 3)
return -ENOMEM;
sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
sband = local->hw.wiphy->bands[chan->band];
if (sband->band == IEEE80211_BAND_2GHZ) {
pos = skb_put(skb, 2 + 1);
*pos++ = WLAN_EID_DS_PARAMS;
*pos++ = 1;
*pos++ = ieee80211_frequency_to_channel(local->hw.conf.channel->center_freq);
*pos++ = ieee80211_frequency_to_channel(chan->center_freq);
}
return 0;
@ -374,7 +381,7 @@ int mesh_add_ht_cap_ie(struct sk_buff *skb,
sband = local->hw.wiphy->bands[local->oper_channel->band];
if (!sband->ht_cap.ht_supported ||
local->_oper_channel_type == NL80211_CHAN_NO_HT)
sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT)
return 0;
if (skb_tailroom(skb) < 2 + sizeof(struct ieee80211_ht_cap))
@ -391,7 +398,8 @@ int mesh_add_ht_oper_ie(struct sk_buff *skb,
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_channel *channel = local->oper_channel;
enum nl80211_channel_type channel_type = local->_oper_channel_type;
enum nl80211_channel_type channel_type =
sdata->vif.bss_conf.channel_type;
struct ieee80211_supported_band *sband =
local->hw.wiphy->bands[channel->band];
struct ieee80211_sta_ht_cap *ht_cap = &sband->ht_cap;
@ -521,14 +529,13 @@ int ieee80211_new_mesh_header(struct ieee80211s_hdr *meshhdr,
static void ieee80211_mesh_housekeeping(struct ieee80211_sub_if_data *sdata,
struct ieee80211_if_mesh *ifmsh)
{
bool free_plinks;
u32 changed;
ieee80211_sta_expire(sdata, IEEE80211_MESH_PEER_INACTIVITY_LIMIT);
mesh_path_expire(sdata);
free_plinks = mesh_plink_availables(sdata);
if (free_plinks != sdata->u.mesh.accepting_plinks)
ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON);
changed = mesh_accept_plinks_update(sdata);
ieee80211_bss_info_change_notify(sdata, changed);
mod_timer(&ifmsh->housekeeping_timer,
round_jiffies(jiffies + IEEE80211_MESH_HOUSEKEEPING_INTERVAL));
@ -603,12 +610,14 @@ void ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata)
sdata->vif.bss_conf.beacon_int = MESH_DEFAULT_BEACON_INTERVAL;
sdata->vif.bss_conf.basic_rates =
ieee80211_mandatory_rates(sdata->local,
sdata->local->hw.conf.channel->band);
sdata->local->oper_channel->band);
ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON |
BSS_CHANGED_BEACON_ENABLED |
BSS_CHANGED_HT |
BSS_CHANGED_BASIC_RATES |
BSS_CHANGED_BEACON_INT);
netif_carrier_on(sdata->dev);
}
void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata)
@ -616,9 +625,15 @@ void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata)
struct ieee80211_local *local = sdata->local;
struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
netif_carrier_off(sdata->dev);
/* stop the beacon */
ifmsh->mesh_id_len = 0;
ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
sta_info_flush(local, NULL);
/* flush STAs and mpaths on this iface */
sta_info_flush(sdata->local, sdata);
mesh_path_flush_by_iface(sdata);
del_timer_sync(&sdata->u.mesh.housekeeping_timer);
del_timer_sync(&sdata->u.mesh.mesh_path_root_timer);

5
net/mac80211/mesh.h
View file

@ -215,6 +215,9 @@ struct mesh_rmc {
/* Maximum number of paths per interface */
#define MESH_MAX_MPATHS 1024
/* Number of frames buffered per destination for unresolved destinations */
#define MESH_FRAME_QUEUE_LEN 10
/* Public interfaces */
/* Various */
int ieee80211_fill_mesh_addresses(struct ieee80211_hdr *hdr, __le16 *fc,
@ -282,7 +285,7 @@ void mesh_neighbour_update(struct ieee80211_sub_if_data *sdata,
u8 *hw_addr,
struct ieee802_11_elems *ie);
bool mesh_peer_accepts_plinks(struct ieee802_11_elems *ie);
void mesh_accept_plinks_update(struct ieee80211_sub_if_data *sdata);
u32 mesh_accept_plinks_update(struct ieee80211_sub_if_data *sdata);
void mesh_plink_broken(struct sta_info *sta);
void mesh_plink_deactivate(struct sta_info *sta);
int mesh_plink_open(struct sta_info *sta);

2
net/mac80211/mesh_hwmp.c
View file

@ -17,8 +17,6 @@
#define MAX_METRIC 0xffffffff
#define ARITH_SHIFT 8
/* Number of frames buffered per destination for unresolved destinations */
#define MESH_FRAME_QUEUE_LEN 10
#define MAX_PREQ_QUEUE_LEN 64
/* Destination only */

44
net/mac80211/mesh_pathtbl.c
View file

@ -203,23 +203,17 @@ void mesh_path_assign_nexthop(struct mesh_path *mpath, struct sta_info *sta)
{
struct sk_buff *skb;
struct ieee80211_hdr *hdr;
struct sk_buff_head tmpq;
unsigned long flags;
rcu_assign_pointer(mpath->next_hop, sta);
__skb_queue_head_init(&tmpq);
spin_lock_irqsave(&mpath->frame_queue.lock, flags);
while ((skb = __skb_dequeue(&mpath->frame_queue)) != NULL) {
skb_queue_walk(&mpath->frame_queue, skb) {
hdr = (struct ieee80211_hdr *) skb->data;
memcpy(hdr->addr1, sta->sta.addr, ETH_ALEN);
memcpy(hdr->addr2, mpath->sdata->vif.addr, ETH_ALEN);
__skb_queue_tail(&tmpq, skb);
}
skb_queue_splice(&tmpq, &mpath->frame_queue);
spin_unlock_irqrestore(&mpath->frame_queue.lock, flags);
}
@ -285,40 +279,42 @@ static void mesh_path_move_to_queue(struct mesh_path *gate_mpath,
struct mesh_path *from_mpath,
bool copy)
{
struct sk_buff *skb, *cp_skb = NULL;
struct sk_buff_head gateq, failq;
struct sk_buff *skb, *fskb, *tmp;
struct sk_buff_head failq;
unsigned long flags;
int num_skbs;
BUG_ON(gate_mpath == from_mpath);
BUG_ON(!gate_mpath->next_hop);
__skb_queue_head_init(&gateq);
__skb_queue_head_init(&failq);
spin_lock_irqsave(&from_mpath->frame_queue.lock, flags);
skb_queue_splice_init(&from_mpath->frame_queue, &failq);
spin_unlock_irqrestore(&from_mpath->frame_queue.lock, flags);
num_skbs = skb_queue_len(&failq);
while (num_skbs--) {
skb = __skb_dequeue(&failq);
if (copy) {
cp_skb = skb_copy(skb, GFP_ATOMIC);
if (cp_skb)
__skb_queue_tail(&failq, cp_skb);
skb_queue_walk_safe(&failq, fskb, tmp) {
if (skb_queue_len(&gate_mpath->frame_queue) >=
MESH_FRAME_QUEUE_LEN) {
mpath_dbg(gate_mpath->sdata, "mpath queue full!\n");
break;
}
skb = skb_copy(fskb, GFP_ATOMIC);
if (WARN_ON(!skb))
break;
prepare_for_gate(skb, gate_mpath->dst, gate_mpath);
__skb_queue_tail(&gateq, skb);
skb_queue_tail(&gate_mpath->frame_queue, skb);
if (copy)
continue;
__skb_unlink(fskb, &failq);
kfree_skb(fskb);
}
spin_lock_irqsave(&gate_mpath->frame_queue.lock, flags);
skb_queue_splice(&gateq, &gate_mpath->frame_queue);
mpath_dbg(gate_mpath->sdata, "Mpath queue for gate %pM has %d frames\n",
gate_mpath->dst, skb_queue_len(&gate_mpath->frame_queue));
spin_unlock_irqrestore(&gate_mpath->frame_queue.lock, flags);
if (!copy)
return;
@ -531,7 +527,7 @@ int mesh_path_add(u8 *dst, struct ieee80211_sub_if_data *sdata)
read_lock_bh(&pathtbl_resize_lock);
memcpy(new_mpath->dst, dst, ETH_ALEN);
memset(new_mpath->rann_snd_addr, 0xff, ETH_ALEN);
eth_broadcast_addr(new_mpath->rann_snd_addr);
new_mpath->is_root = false;
new_mpath->sdata = sdata;
new_mpath->flags = 0;

85
net/mac80211/mesh_plink.c
View file

@ -48,17 +48,17 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata,
u8 *da, __le16 llid, __le16 plid, __le16 reason);
static inline
void mesh_plink_inc_estab_count(struct ieee80211_sub_if_data *sdata)
u32 mesh_plink_inc_estab_count(struct ieee80211_sub_if_data *sdata)
{
atomic_inc(&sdata->u.mesh.mshstats.estab_plinks);
mesh_accept_plinks_update(sdata);
return mesh_accept_plinks_update(sdata);
}
static inline
void mesh_plink_dec_estab_count(struct ieee80211_sub_if_data *sdata)
u32 mesh_plink_dec_estab_count(struct ieee80211_sub_if_data *sdata)
{
atomic_dec(&sdata->u.mesh.mshstats.estab_plinks);
mesh_accept_plinks_update(sdata);
return mesh_accept_plinks_update(sdata);
}
/**
@ -117,7 +117,7 @@ static u32 mesh_set_ht_prot_mode(struct ieee80211_sub_if_data *sdata)
u16 ht_opmode;
bool non_ht_sta = false, ht20_sta = false;
if (local->_oper_channel_type == NL80211_CHAN_NO_HT)
if (sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT)
return 0;
rcu_read_lock();
@ -147,7 +147,8 @@ out:
if (non_ht_sta)
ht_opmode = IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED;
else if (ht20_sta && local->_oper_channel_type > NL80211_CHAN_HT20)
else if (ht20_sta &&
sdata->vif.bss_conf.channel_type > NL80211_CHAN_HT20)
ht_opmode = IEEE80211_HT_OP_MODE_PROTECTION_20MHZ;
else
ht_opmode = IEEE80211_HT_OP_MODE_PROTECTION_NONE;
@ -170,22 +171,21 @@ out:
* @sta: mesh peer link to deactivate
*
* All mesh paths with this peer as next hop will be flushed
* Returns beacon changed flag if the beacon content changed.
*
* Locking: the caller must hold sta->lock
*/
static bool __mesh_plink_deactivate(struct sta_info *sta)
static u32 __mesh_plink_deactivate(struct sta_info *sta)
{
struct ieee80211_sub_if_data *sdata = sta->sdata;
bool deactivated = false;
u32 changed = 0;
if (sta->plink_state == NL80211_PLINK_ESTAB) {
mesh_plink_dec_estab_count(sdata);
deactivated = true;
}
if (sta->plink_state == NL80211_PLINK_ESTAB)
changed = mesh_plink_dec_estab_count(sdata);
sta->plink_state = NL80211_PLINK_BLOCKED;
mesh_path_flush_by_nexthop(sta);
return deactivated;
return changed;
}
/**
@ -198,18 +198,17 @@ static bool __mesh_plink_deactivate(struct sta_info *sta)
void mesh_plink_deactivate(struct sta_info *sta)
{
struct ieee80211_sub_if_data *sdata = sta->sdata;
bool deactivated;
u32 changed;
spin_lock_bh(&sta->lock);
deactivated = __mesh_plink_deactivate(sta);
changed = __mesh_plink_deactivate(sta);
sta->reason = cpu_to_le16(WLAN_REASON_MESH_PEER_CANCELED);
mesh_plink_frame_tx(sdata, WLAN_SP_MESH_PEERING_CLOSE,
sta->sta.addr, sta->llid, sta->plid,
sta->reason);
spin_unlock_bh(&sta->lock);
if (deactivated)
ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON);
ieee80211_bss_info_change_notify(sdata, changed);
}
static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata,
@ -217,12 +216,14 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata,
u8 *da, __le16 llid, __le16 plid, __le16 reason) {
struct ieee80211_local *local = sdata->local;
struct sk_buff *skb;
struct ieee80211_tx_info *info;
struct ieee80211_mgmt *mgmt;
bool include_plid = false;
u16 peering_proto = 0;
u8 *pos, ie_len = 4;
int hdr_len = offsetof(struct ieee80211_mgmt, u.action.u.self_prot) +
sizeof(mgmt->u.action.u.self_prot);
int err = -ENOMEM;
skb = dev_alloc_skb(local->tx_headroom +
hdr_len +
@ -238,6 +239,7 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata,
sdata->u.mesh.ie_len);
if (!skb)
return -1;
info = IEEE80211_SKB_CB(skb);
skb_reserve(skb, local->tx_headroom);
mgmt = (struct ieee80211_mgmt *) skb_put(skb, hdr_len);
memset(mgmt, 0, hdr_len);
@ -258,15 +260,18 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata,
pos = skb_put(skb, 2);
memcpy(pos + 2, &plid, 2);
}
if (ieee80211_add_srates_ie(sdata, skb, true) ||
ieee80211_add_ext_srates_ie(sdata, skb, true) ||
if (ieee80211_add_srates_ie(sdata, skb, true,
local->oper_channel->band) ||
ieee80211_add_ext_srates_ie(sdata, skb, true,
local->oper_channel->band) ||
mesh_add_rsn_ie(skb, sdata) ||
mesh_add_meshid_ie(skb, sdata) ||
mesh_add_meshconf_ie(skb, sdata))
return -1;
goto free;
} else { /* WLAN_SP_MESH_PEERING_CLOSE */
info->flags |= IEEE80211_TX_CTL_NO_ACK;
if (mesh_add_meshid_ie(skb, sdata))
return -1;
goto free;
}
/* Add Mesh Peering Management element */
@ -285,11 +290,12 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata,
ie_len += 2; /* reason code */
break;
default:
return -EINVAL;
err = -EINVAL;
goto free;
}
if (WARN_ON(skb_tailroom(skb) < 2 + ie_len))
return -ENOMEM;
goto free;
pos = skb_put(skb, 2 + ie_len);
*pos++ = WLAN_EID_PEER_MGMT;
@ -310,14 +316,17 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata,
if (action != WLAN_SP_MESH_PEERING_CLOSE) {
if (mesh_add_ht_cap_ie(skb, sdata) ||
mesh_add_ht_oper_ie(skb, sdata))
return -1;
goto free;
}
if (mesh_add_vendor_ies(skb, sdata))
return -1;
goto free;
ieee80211_tx_skb(sdata, skb);
return 0;
free:
kfree_skb(skb);
return err;
}
/**
@ -362,9 +371,14 @@ static struct sta_info *mesh_peer_init(struct ieee80211_sub_if_data *sdata,
spin_lock_bh(&sta->lock);
sta->last_rx = jiffies;
if (sta->plink_state == NL80211_PLINK_ESTAB) {
spin_unlock_bh(&sta->lock);
return sta;
}
sta->sta.supp_rates[band] = rates;
if (elems->ht_cap_elem &&
sdata->local->_oper_channel_type != NL80211_CHAN_NO_HT)
sdata->vif.bss_conf.channel_type != NL80211_CHAN_NO_HT)
ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
elems->ht_cap_elem,
&sta->sta.ht_cap);
@ -523,7 +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;
}
@ -541,15 +556,14 @@ int mesh_plink_open(struct sta_info *sta)
void mesh_plink_block(struct sta_info *sta)
{
struct ieee80211_sub_if_data *sdata = sta->sdata;
bool deactivated;
u32 changed;
spin_lock_bh(&sta->lock);
deactivated = __mesh_plink_deactivate(sta);
changed = __mesh_plink_deactivate(sta);
sta->plink_state = NL80211_PLINK_BLOCKED;
spin_unlock_bh(&sta->lock);
if (deactivated)
ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON);
ieee80211_bss_info_change_notify(sdata, changed);
}
@ -852,9 +866,8 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
del_timer(&sta->plink_timer);
sta->plink_state = NL80211_PLINK_ESTAB;
spin_unlock_bh(&sta->lock);
mesh_plink_inc_estab_count(sdata);
changed |= mesh_plink_inc_estab_count(sdata);
changed |= mesh_set_ht_prot_mode(sdata);
changed |= BSS_CHANGED_BEACON;
mpl_dbg(sdata, "Mesh plink with %pM ESTABLISHED\n",
sta->sta.addr);
break;
@ -888,9 +901,8 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
del_timer(&sta->plink_timer);
sta->plink_state = NL80211_PLINK_ESTAB;
spin_unlock_bh(&sta->lock);
mesh_plink_inc_estab_count(sdata);
changed |= mesh_plink_inc_estab_count(sdata);
changed |= mesh_set_ht_prot_mode(sdata);
changed |= BSS_CHANGED_BEACON;
mpl_dbg(sdata, "Mesh plink with %pM ESTABLISHED\n",
sta->sta.addr);
mesh_plink_frame_tx(sdata,
@ -908,13 +920,12 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
case CLS_ACPT:
reason = cpu_to_le16(WLAN_REASON_MESH_CLOSE);
sta->reason = reason;
__mesh_plink_deactivate(sta);
changed |= __mesh_plink_deactivate(sta);
sta->plink_state = NL80211_PLINK_HOLDING;
llid = sta->llid;
mod_plink_timer(sta, dot11MeshHoldingTimeout(sdata));
spin_unlock_bh(&sta->lock);
changed |= mesh_set_ht_prot_mode(sdata);
changed |= BSS_CHANGED_BEACON;
mesh_plink_frame_tx(sdata, WLAN_SP_MESH_PEERING_CLOSE,
sta->sta.addr, llid, plid, reason);
break;

3
net/mac80211/mesh_sync.c
View file

@ -56,7 +56,6 @@ void mesh_sync_adjust_tbtt(struct ieee80211_sub_if_data *sdata)
u64 tsfdelta;
spin_lock_bh(&ifmsh->sync_offset_lock);
if (ifmsh->sync_offset_clockdrift_max < beacon_int_fraction) {
msync_dbg(sdata, "TBTT : max clockdrift=%lld; adjusting\n",
(long long) ifmsh->sync_offset_clockdrift_max);
@ -69,11 +68,11 @@ void mesh_sync_adjust_tbtt(struct ieee80211_sub_if_data *sdata)
tsfdelta = -beacon_int_fraction;
ifmsh->sync_offset_clockdrift_max -= beacon_int_fraction;
}
spin_unlock_bh(&ifmsh->sync_offset_lock);
tsf = drv_get_tsf(local, sdata);
if (tsf != -1ULL)
drv_set_tsf(local, sdata, tsf + tsfdelta);
spin_unlock_bh(&ifmsh->sync_offset_lock);
}
static void mesh_sync_offset_rx_bcn_presp(struct ieee80211_sub_if_data *sdata,

443
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
@ -146,6 +144,9 @@ void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata)
if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER)
return;
if (sdata->local->hw.flags & IEEE80211_HW_CONNECTION_MONITOR)
return;
mod_timer(&sdata->u.mgd.bcn_mon_timer,
round_jiffies_up(jiffies + sdata->u.mgd.beacon_timeout));
}
@ -182,15 +183,15 @@ static u32 ieee80211_config_ht_tx(struct ieee80211_sub_if_data *sdata,
u16 ht_opmode;
bool disable_40 = false;
sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
sband = local->hw.wiphy->bands[local->oper_channel->band];
switch (sdata->vif.bss_conf.channel_type) {
case NL80211_CHAN_HT40PLUS:
if (local->hw.conf.channel->flags & IEEE80211_CHAN_NO_HT40PLUS)
if (local->oper_channel->flags & IEEE80211_CHAN_NO_HT40PLUS)
disable_40 = true;
break;
case NL80211_CHAN_HT40MINUS:
if (local->hw.conf.channel->flags & IEEE80211_CHAN_NO_HT40MINUS)
if (local->oper_channel->flags & IEEE80211_CHAN_NO_HT40MINUS)
disable_40 = true;
break;
default:
@ -326,6 +327,26 @@ static void ieee80211_add_ht_ie(struct ieee80211_sub_if_data *sdata,
ieee80211_ie_build_ht_cap(pos, &ht_cap, cap);
}
static void ieee80211_add_vht_ie(struct ieee80211_sub_if_data *sdata,
struct sk_buff *skb,
struct ieee80211_supported_band *sband)
{
u8 *pos;
u32 cap;
struct ieee80211_sta_vht_cap vht_cap;
BUILD_BUG_ON(sizeof(vht_cap) != sizeof(sband->vht_cap));
memcpy(&vht_cap, &sband->vht_cap, sizeof(vht_cap));
/* determine capability flags */
cap = vht_cap.cap;
/* reserve and fill IE */
pos = skb_put(skb, sizeof(struct ieee80211_vht_capabilities) + 2);
ieee80211_ie_build_vht_cap(pos, &vht_cap, cap);
}
static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_local *local = sdata->local;
@ -371,6 +392,7 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
4 + /* power capability */
2 + 2 * sband->n_channels + /* supported channels */
2 + sizeof(struct ieee80211_ht_cap) + /* HT */
2 + sizeof(struct ieee80211_vht_capabilities) + /* VHT */
assoc_data->ie_len + /* extra IEs */
9, /* WMM */
GFP_KERNEL);
@ -503,6 +525,9 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
ieee80211_add_ht_ie(sdata, skb, assoc_data->ap_ht_param,
sband, local->oper_channel, ifmgd->ap_smps);
if (!(ifmgd->flags & IEEE80211_STA_DISABLE_VHT))
ieee80211_add_vht_ie(sdata, skb, sband);
/* if present, add any custom non-vendor IEs that go after HT */
if (assoc_data->ie_len && assoc_data->ie) {
noffset = ieee80211_ie_split_vendor(assoc_data->ie,
@ -547,48 +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;
drv_mgd_prepare_tx(local, sdata);
ieee80211_tx_skb(sdata, skb);
}
}
void ieee80211_send_pspoll(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata)
{
@ -687,6 +670,7 @@ static void ieee80211_chswitch_work(struct work_struct *work)
/* XXX: shouldn't really modify cfg80211-owned data! */
ifmgd->associated->channel = sdata->local->oper_channel;
/* XXX: wait for a beacon first? */
ieee80211_wake_queues_by_reason(&sdata->local->hw,
IEEE80211_QUEUE_STOP_REASON_CSA);
out:
@ -704,16 +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);
}
ieee80211_queue_work(&sdata->local->hw, &ifmgd->chswitch_work);
}
EXPORT_SYMBOL(ieee80211_chswitch_done);
@ -758,61 +739,111 @@ 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;
ifmgd->flags |= IEEE80211_STA_CSA_RECEIVED;
if (sw_elem->mode)
ieee80211_stop_queues_by_reason(&sdata->local->hw,
IEEE80211_QUEUE_STOP_REASON_CSA);
if (sdata->local->ops->channel_switch) {
/* use driver's channel switch callback */
struct ieee80211_channel_switch ch_switch;
memset(&ch_switch, 0, sizeof(ch_switch));
ch_switch.timestamp = timestamp;
if (sw_elem->mode) {
ch_switch.block_tx = true;
ieee80211_stop_queues_by_reason(&sdata->local->hw,
IEEE80211_QUEUE_STOP_REASON_CSA);
}
ch_switch.channel = new_ch;
ch_switch.count = sw_elem->count;
ifmgd->flags |= IEEE80211_STA_CSA_RECEIVED;
struct ieee80211_channel_switch ch_switch = {
.timestamp = timestamp,
.block_tx = sw_elem->mode,
.channel = new_ch,
.count = sw_elem->count,
};
drv_channel_switch(sdata->local, &ch_switch);
return;
}
/* channel switch handled in software */
if (sw_elem->count <= 1) {
if (sw_elem->count <= 1)
ieee80211_queue_work(&sdata->local->hw, &ifmgd->chswitch_work);
} else {
if (sw_elem->mode)
ieee80211_stop_queues_by_reason(&sdata->local->hw,
IEEE80211_QUEUE_STOP_REASON_CSA);
ifmgd->flags |= IEEE80211_STA_CSA_RECEIVED;
else
mod_timer(&ifmgd->chswitch_timer,
jiffies +
msecs_to_jiffies(sw_elem->count *
cbss->beacon_interval));
}
TU_TO_EXP_TIME(sw_elem->count *
cbss->beacon_interval));
}
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)
@ -1007,6 +1038,16 @@ void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency)
ieee80211_change_ps(local);
}
void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata)
{
bool ps_allowed = ieee80211_powersave_allowed(sdata);
if (sdata->vif.bss_conf.ps != ps_allowed) {
sdata->vif.bss_conf.ps = ps_allowed;
ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_PS);
}
}
void ieee80211_dynamic_ps_disable_work(struct work_struct *work)
{
struct ieee80211_local *local =
@ -1239,7 +1280,7 @@ static u32 ieee80211_handle_bss_capability(struct ieee80211_sub_if_data *sdata,
}
use_short_slot = !!(capab & WLAN_CAPABILITY_SHORT_SLOT_TIME);
if (sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ)
if (sdata->local->oper_channel->band == IEEE80211_BAND_5GHZ)
use_short_slot = true;
if (use_protection != bss_conf->use_cts_prot) {
@ -1307,9 +1348,11 @@ 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);
netif_carrier_on(sdata->dev);
}
@ -1356,7 +1399,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
sta = sta_info_get(sdata, ifmgd->bssid);
if (sta) {
set_sta_flag(sta, WLAN_STA_BLOCK_BA);
ieee80211_sta_tear_down_BA_sessions(sta, tx);
ieee80211_sta_tear_down_BA_sessions(sta, false);
}
mutex_unlock(&local->sta_mtx);
@ -1371,6 +1414,9 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
}
local->ps_sdata = NULL;
/* disable per-vif ps */
ieee80211_recalc_ps_vif(sdata);
/* flush out any pending frame (e.g. DELBA) before deauth/disassoc */
if (tx)
drv_flush(local, false);
@ -1401,7 +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);
@ -1542,7 +1588,8 @@ static void ieee80211_mgd_probe_ap_send(struct ieee80211_sub_if_data *sdata)
ssid_len = ssid[1];
ieee80211_send_probe_req(sdata, dst, ssid + 2, ssid_len, NULL,
0, (u32) -1, true, false);
0, (u32) -1, true, false,
ifmgd->associated->channel);
}
ifmgd->probe_timeout = jiffies + msecs_to_jiffies(probe_wait_ms);
@ -1645,19 +1692,21 @@ struct sk_buff *ieee80211_ap_probereq_get(struct ieee80211_hw *hw,
ssid_len = ssid[1];
skb = ieee80211_build_probe_req(sdata, cbss->bssid,
(u32) -1, ssid + 2, ssid_len,
(u32) -1,
sdata->local->oper_channel,
ssid + 2, ssid_len,
NULL, 0, true);
return skb;
}
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 bssid[ETH_ALEN];
u8 frame_buf[DEAUTH_DISASSOC_LEN];
u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN];
mutex_lock(&ifmgd->mtx);
if (!ifmgd->associated) {
@ -1665,27 +1714,24 @@ static void __ieee80211_connection_loss(struct ieee80211_sub_if_data *sdata)
return;
}
memcpy(bssid, ifmgd->associated->bssid, ETH_ALEN);
sdata_info(sdata, "Connection to AP %pM lost\n", 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);
mutex_unlock(&local->mtx);
}
void ieee80211_beacon_connection_loss_work(struct work_struct *work)
static void ieee80211_beacon_connection_loss_work(struct work_struct *work)
{
struct ieee80211_sub_if_data *sdata =
container_of(work, struct ieee80211_sub_if_data,
@ -1701,10 +1747,24 @@ 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)
@ -2232,14 +2292,10 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
mutex_unlock(&local->iflist_mtx);
}
if (elems->ch_switch_elem && (elems->ch_switch_elem_len == 3) &&
(memcmp(mgmt->bssid, sdata->u.mgd.associated->bssid,
ETH_ALEN) == 0)) {
struct ieee80211_channel_sw_ie *sw_elem =
(struct ieee80211_channel_sw_ie *)elems->ch_switch_elem;
ieee80211_sta_process_chanswitch(sdata, sw_elem,
if (elems->ch_switch_ie &&
memcmp(mgmt->bssid, sdata->u.mgd.associated->bssid, ETH_ALEN) == 0)
ieee80211_sta_process_chanswitch(sdata, elems->ch_switch_ie,
bss, rx_status->mactime);
}
}
@ -2326,7 +2382,7 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
if (baselen > len)
return;
if (rx_status->freq != local->hw.conf.channel->center_freq)
if (rx_status->freq != local->oper_channel->center_freq)
return;
if (ifmgd->assoc_data && !ifmgd->assoc_data->have_beacon &&
@ -2490,21 +2546,19 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
!(ifmgd->flags & IEEE80211_STA_DISABLE_11N)) {
struct ieee80211_supported_band *sband;
sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
sband = local->hw.wiphy->bands[local->oper_channel->band];
changed |= ieee80211_config_ht_tx(sdata, elems.ht_operation,
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);
}
@ -2601,7 +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);
@ -2611,7 +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);
@ -2673,7 +2727,8 @@ static int ieee80211_probe_auth(struct ieee80211_sub_if_data *sdata)
* will not answer to direct packet in unassociated state.
*/
ieee80211_send_probe_req(sdata, NULL, ssidie + 2, ssidie[1],
NULL, 0, (u32) -1, true, false);
NULL, 0, (u32) -1, true, false,
auth_data->bss->channel);
}
auth_data->timeout = jiffies + IEEE80211_AUTH_TIMEOUT;
@ -2894,6 +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);
@ -2950,6 +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);
@ -3000,41 +3058,17 @@ int ieee80211_max_network_latency(struct notifier_block *nb,
return 0;
}
static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata,
struct cfg80211_bss *cbss, bool assoc)
static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata,
struct cfg80211_bss *cbss)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct ieee80211_bss *bss = (void *)cbss->priv;
struct sta_info *sta = NULL;
bool have_sta = false;
int err;
int ht_cfreq;
enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
const u8 *ht_oper_ie;
const struct ieee80211_ht_operation *ht_oper = NULL;
struct ieee80211_supported_band *sband;
if (WARN_ON(!ifmgd->auth_data && !ifmgd->assoc_data))
return -EINVAL;
if (assoc) {
rcu_read_lock();
have_sta = sta_info_get(sdata, cbss->bssid);
rcu_read_unlock();
}
if (!have_sta) {
sta = sta_info_alloc(sdata, cbss->bssid, GFP_KERNEL);
if (!sta)
return -ENOMEM;
}
mutex_lock(&local->mtx);
ieee80211_recalc_idle(sdata->local);
mutex_unlock(&local->mtx);
/* switch to the right channel */
sband = local->hw.wiphy->bands[cbss->channel->band];
ifmgd->flags &= ~IEEE80211_STA_DISABLE_40MHZ;
@ -3097,10 +3131,51 @@ static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata,
local->oper_channel = cbss->channel;
ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
if (sta) {
return 0;
}
static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata,
struct cfg80211_bss *cbss, bool assoc)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct ieee80211_bss *bss = (void *)cbss->priv;
struct sta_info *new_sta = NULL;
bool have_sta = false;
int err;
if (WARN_ON(!ifmgd->auth_data && !ifmgd->assoc_data))
return -EINVAL;
if (assoc) {
rcu_read_lock();
have_sta = sta_info_get(sdata, cbss->bssid);
rcu_read_unlock();
}
if (!have_sta) {
new_sta = sta_info_alloc(sdata, cbss->bssid, GFP_KERNEL);
if (!new_sta)
return -ENOMEM;
}
mutex_lock(&local->mtx);
ieee80211_recalc_idle(sdata->local);
mutex_unlock(&local->mtx);
if (new_sta) {
u32 rates = 0, basic_rates = 0;
bool have_higher_than_11mbit;
int min_rate = INT_MAX, min_rate_index = -1;
struct ieee80211_supported_band *sband;
sband = local->hw.wiphy->bands[cbss->channel->band];
err = ieee80211_prep_channel(sdata, cbss);
if (err) {
sta_info_free(local, new_sta);
return err;
}
ieee80211_get_rates(sband, bss->supp_rates,
bss->supp_rates_len,
@ -3122,7 +3197,7 @@ static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata,
basic_rates = BIT(min_rate_index);
}
sta->sta.supp_rates[cbss->channel->band] = rates;
new_sta->sta.supp_rates[cbss->channel->band] = rates;
sdata->vif.bss_conf.basic_rates = basic_rates;
/* cf. IEEE 802.11 9.2.12 */
@ -3145,10 +3220,10 @@ static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata,
BSS_CHANGED_BEACON_INT);
if (assoc)
sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
sta_info_pre_move_state(new_sta, IEEE80211_STA_AUTH);
err = sta_info_insert(sta);
sta = NULL;
err = sta_info_insert(new_sta);
new_sta = NULL;
if (err) {
sdata_info(sdata,
"failed to insert STA entry for the AP (error %d)\n",
@ -3302,9 +3377,13 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
}
/* prepare assoc data */
ifmgd->flags &= ~IEEE80211_STA_DISABLE_11N;
ifmgd->flags &= ~IEEE80211_STA_NULLFUNC_ACKED;
/*
* keep only the 40 MHz disable bit set as it might have
* been set during authentication already, all other bits
* should be reset for a new connection
*/
ifmgd->flags &= IEEE80211_STA_DISABLE_40MHZ;
ifmgd->beacon_crc_valid = false;
@ -3320,21 +3399,34 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_TKIP ||
req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_WEP104) {
ifmgd->flags |= IEEE80211_STA_DISABLE_11N;
ifmgd->flags |= IEEE80211_STA_DISABLE_VHT;
netdev_info(sdata->dev,
"disabling HT due to WEP/TKIP use\n");
"disabling HT/VHT due to WEP/TKIP use\n");
}
}
if (req->flags & ASSOC_REQ_DISABLE_HT)
if (req->flags & ASSOC_REQ_DISABLE_HT) {
ifmgd->flags |= IEEE80211_STA_DISABLE_11N;
ifmgd->flags |= IEEE80211_STA_DISABLE_VHT;
}
/* Also disable HT if we don't support it or the AP doesn't use WMM */
sband = local->hw.wiphy->bands[req->bss->channel->band];
if (!sband->ht_cap.ht_supported ||
local->hw.queues < IEEE80211_NUM_ACS || !bss->wmm_used) {
ifmgd->flags |= IEEE80211_STA_DISABLE_11N;
netdev_info(sdata->dev,
"disabling HT as WMM/QoS is not supported\n");
if (!bss->wmm_used)
netdev_info(sdata->dev,
"disabling HT as WMM/QoS is not supported by the AP\n");
}
/* disable VHT if we don't support it or the AP doesn't use WMM */
if (!sband->vht_cap.vht_supported ||
local->hw.queues < IEEE80211_NUM_ACS || !bss->wmm_used) {
ifmgd->flags |= IEEE80211_STA_DISABLE_VHT;
if (!bss->wmm_used)
netdev_info(sdata->dev,
"disabling VHT as WMM/QoS is not supported by the AP\n");
}
memcpy(&ifmgd->ht_capa, &req->ht_capa, sizeof(ifmgd->ht_capa));
@ -3456,7 +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);
@ -3471,17 +3563,21 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
req->bssid, req->reason_code);
if (ifmgd->associated &&
ether_addr_equal(ifmgd->associated->bssid, req->bssid))
ether_addr_equal(ifmgd->associated->bssid, req->bssid)) {
ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH,
req->reason_code, true, frame_buf);
else
} else {
drv_mgd_prepare_tx(sdata->local, sdata);
ieee80211_send_deauth_disassoc(sdata, req->bssid,
IEEE80211_STYPE_DEAUTH,
req->reason_code, true,
frame_buf);
}
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);
@ -3495,7 +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);
@ -3520,7 +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);

9
net/mac80211/offchannel.c
View file

@ -116,6 +116,9 @@ void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local,
if (!ieee80211_sdata_running(sdata))
continue;
if (sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE)
continue;
if (sdata->vif.type != NL80211_IFTYPE_MONITOR)
set_bit(SDATA_STATE_OFFCHANNEL, &sdata->state);
@ -144,6 +147,9 @@ void ieee80211_offchannel_return(struct ieee80211_local *local,
mutex_lock(&local->iflist_mtx);
list_for_each_entry(sdata, &local->interfaces, list) {
if (sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE)
continue;
if (sdata->vif.type != NL80211_IFTYPE_MONITOR)
clear_bit(SDATA_STATE_OFFCHANNEL, &sdata->state);
@ -227,8 +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:

2
net/mac80211/rate.h
View file

@ -56,7 +56,7 @@ static inline void rate_control_rate_init(struct sta_info *sta)
if (!ref)
return;
sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
sband = local->hw.wiphy->bands[local->oper_channel->band];
ref->ops->rate_init(ref->priv, sband, ista, priv_sta);
set_sta_flag(sta, WLAN_STA_RATE_CONTROL);

60
net/mac80211/rx.c
View file

@ -60,7 +60,9 @@ static inline int should_drop_frame(struct sk_buff *skb,
struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
if (status->flag & (RX_FLAG_FAILED_FCS_CRC | RX_FLAG_FAILED_PLCP_CRC))
if (status->flag & (RX_FLAG_FAILED_FCS_CRC |
RX_FLAG_FAILED_PLCP_CRC |
RX_FLAG_AMPDU_IS_ZEROLEN))
return 1;
if (unlikely(skb->len < 16 + present_fcs_len))
return 1;
@ -91,10 +93,17 @@ ieee80211_rx_radiotap_len(struct ieee80211_local *local,
if (status->flag & RX_FLAG_HT) /* HT info */
len += 3;
if (status->flag & RX_FLAG_AMPDU_DETAILS) {
/* padding */
while (len & 3)
len++;
len += 8;
}
return len;
}
/**
/*
* ieee80211_add_rx_radiotap_header - add radiotap header
*
* add a radiotap header containing all the fields which the hardware provided.
@ -215,6 +224,37 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
pos++;
*pos++ = status->rate_idx;
}
if (status->flag & RX_FLAG_AMPDU_DETAILS) {
u16 flags = 0;
/* ensure 4 byte alignment */
while ((pos - (u8 *)rthdr) & 3)
pos++;
rthdr->it_present |=
cpu_to_le32(1 << IEEE80211_RADIOTAP_AMPDU_STATUS);
put_unaligned_le32(status->ampdu_reference, pos);
pos += 4;
if (status->flag & RX_FLAG_AMPDU_REPORT_ZEROLEN)
flags |= IEEE80211_RADIOTAP_AMPDU_REPORT_ZEROLEN;
if (status->flag & RX_FLAG_AMPDU_IS_ZEROLEN)
flags |= IEEE80211_RADIOTAP_AMPDU_IS_ZEROLEN;
if (status->flag & RX_FLAG_AMPDU_LAST_KNOWN)
flags |= IEEE80211_RADIOTAP_AMPDU_LAST_KNOWN;
if (status->flag & RX_FLAG_AMPDU_IS_LAST)
flags |= IEEE80211_RADIOTAP_AMPDU_IS_LAST;
if (status->flag & RX_FLAG_AMPDU_DELIM_CRC_ERROR)
flags |= IEEE80211_RADIOTAP_AMPDU_DELIM_CRC_ERR;
if (status->flag & RX_FLAG_AMPDU_DELIM_CRC_KNOWN)
flags |= IEEE80211_RADIOTAP_AMPDU_DELIM_CRC_KNOWN;
put_unaligned_le16(flags, pos);
pos += 2;
if (status->flag & RX_FLAG_AMPDU_DELIM_CRC_KNOWN)
*pos++ = status->ampdu_delimiter_crc;
else
*pos++ = 0;
*pos++ = 0;
}
}
/*
@ -2268,7 +2308,7 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
goto queue;
case WLAN_CATEGORY_SPECTRUM_MGMT:
if (local->hw.conf.channel->band != IEEE80211_BAND_5GHZ)
if (status->band != IEEE80211_BAND_5GHZ)
break;
if (sdata->vif.type != NL80211_IFTYPE_STATION)
@ -2772,8 +2812,7 @@ static int prepare_for_handlers(struct ieee80211_rx_data *rx,
if (!bssid) {
if (!ether_addr_equal(sdata->vif.addr, hdr->addr1))
return 0;
} else if (!ieee80211_bssid_match(bssid,
sdata->vif.addr)) {
} else if (!ieee80211_bssid_match(bssid, sdata->vif.addr)) {
/*
* Accept public action frames even when the
* BSSID doesn't match, this is used for P2P
@ -2793,9 +2832,18 @@ static int prepare_for_handlers(struct ieee80211_rx_data *rx,
if (!ether_addr_equal(sdata->u.wds.remote_addr, hdr->addr2))
return 0;
break;
case NL80211_IFTYPE_P2P_DEVICE:
if (!ieee80211_is_public_action(hdr, skb->len) &&
!ieee80211_is_probe_req(hdr->frame_control) &&
!ieee80211_is_probe_resp(hdr->frame_control) &&
!ieee80211_is_beacon(hdr->frame_control))
return 0;
if (!ether_addr_equal(sdata->vif.addr, hdr->addr1))
status->rx_flags &= ~IEEE80211_RX_RA_MATCH;
break;
default:
/* should never get here */
WARN_ON(1);
WARN_ON_ONCE(1);
break;
}

53
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(
@ -416,7 +416,8 @@ static void ieee80211_scan_state_send_probe(struct ieee80211_local *local,
local->scan_req->ssids[i].ssid_len,
local->scan_req->ie, local->scan_req->ie_len,
local->scan_req->rates[band], false,
local->scan_req->no_cck);
local->scan_req->no_cck,
local->hw.conf.channel);
/*
* After sending probe requests, wait for probe responses
@ -479,11 +480,10 @@ static int __ieee80211_start_scan(struct ieee80211_sub_if_data *sdata,
if (local->ops->hw_scan) {
__set_bit(SCAN_HW_SCANNING, &local->scanning);
} else if ((req->n_channels == 1) &&
(req->channels[0]->center_freq ==
local->hw.conf.channel->center_freq)) {
/* If we are scanning only on the current channel, then
* we do not need to stop normal activities
(req->channels[0] == local->oper_channel)) {
/*
* If we are scanning only on the operating channel
* then we do not need to stop normal activities
*/
unsigned long next_delay;
@ -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 +
local->scan_ies_len +
req->ie_len,
GFP_KERNEL);
if (!local->sched_scan_ies.ie[i]) {
sched_scan_ies.ie[i] = kzalloc(2 + IEEE80211_MAX_SSID_LEN +
local->scan_ies_len +
req->ie_len,
GFP_KERNEL);
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);

123
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();
@ -674,7 +738,7 @@ int __must_check __sta_info_destroy(struct sta_info *sta)
* will be sufficient.
*/
set_sta_flag(sta, WLAN_STA_BLOCK_BA);
ieee80211_sta_tear_down_BA_sessions(sta, true);
ieee80211_sta_tear_down_BA_sessions(sta, false);
ret = sta_info_hash_del(local, sta);
if (ret)
@ -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;

46
net/mac80211/status.c
View file

@ -34,7 +34,7 @@ void ieee80211_tx_status_irqsafe(struct ieee80211_hw *hw,
skb_queue_len(&local->skb_queue_unreliable);
while (tmp > IEEE80211_IRQSAFE_QUEUE_LIMIT &&
(skb = skb_dequeue(&local->skb_queue_unreliable))) {
dev_kfree_skb_irq(skb);
ieee80211_free_txskb(hw, skb);
tmp--;
I802_DEBUG_INC(local->tx_status_drop);
}
@ -159,7 +159,7 @@ static void ieee80211_handle_filtered_frame(struct ieee80211_local *local,
"dropped TX filtered frame, queue_len=%d PS=%d @%lu\n",
skb_queue_len(&sta->tx_filtered[ac]),
!!test_sta_flag(sta, WLAN_STA_PS_STA), jiffies);
dev_kfree_skb(skb);
ieee80211_free_txskb(&local->hw, skb);
}
static void ieee80211_check_pending_bar(struct sta_info *sta, u8 *addr, u8 tid)
@ -517,21 +517,41 @@ 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;
bool found = false;
acked = info->flags & IEEE80211_TX_STAT_ACK;
/*
* TODO: When we have non-netdev frame TX,
* we cannot use skb->dev->ieee80211_ptr
*/
rcu_read_lock();
if (ieee80211_is_nullfunc(hdr->frame_control) ||
ieee80211_is_qos_nullfunc(hdr->frame_control))
cfg80211_probe_status(skb->dev, hdr->addr1,
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(
skb->dev->ieee80211_ptr, cookie, skb->data,
skb->len, 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)) {

11
net/mac80211/trace.h
View file

@ -24,7 +24,7 @@
__string(vif_name, sdata->dev ? sdata->dev->name : "<nodev>")
#define VIF_ASSIGN __entry->vif_type = sdata->vif.type; __entry->sdata = sdata; \
__entry->p2p = sdata->vif.p2p; \
__assign_str(vif_name, sdata->dev ? sdata->dev->name : "<nodev>")
__assign_str(vif_name, sdata->dev ? sdata->dev->name : sdata->name)
#define VIF_PR_FMT " vif:%s(%d%s)"
#define VIF_PR_ARG __get_str(vif_name), __entry->vif_type, __entry->p2p ? "/p2p" : ""
@ -274,9 +274,12 @@ TRACE_EVENT(drv_config,
__entry->dynamic_ps_timeout = local->hw.conf.dynamic_ps_timeout;
__entry->max_sleep_period = local->hw.conf.max_sleep_period;
__entry->listen_interval = local->hw.conf.listen_interval;
__entry->long_frame_max_tx_count = local->hw.conf.long_frame_max_tx_count;
__entry->short_frame_max_tx_count = local->hw.conf.short_frame_max_tx_count;
__entry->center_freq = local->hw.conf.channel->center_freq;
__entry->long_frame_max_tx_count =
local->hw.conf.long_frame_max_tx_count;
__entry->short_frame_max_tx_count =
local->hw.conf.short_frame_max_tx_count;
__entry->center_freq = local->hw.conf.channel ?
local->hw.conf.channel->center_freq : 0;
__entry->channel_type = local->hw.conf.channel_type;
__entry->smps = local->hw.conf.smps_mode;
),

95
net/mac80211/tx.c
View file

@ -55,7 +55,7 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx,
if (WARN_ON_ONCE(info->control.rates[0].idx < 0))
return 0;
sband = local->hw.wiphy->bands[tx->channel->band];
sband = local->hw.wiphy->bands[info->band];
txrate = &sband->bitrates[info->control.rates[0].idx];
erp = txrate->flags & IEEE80211_RATE_ERP_G;
@ -354,7 +354,7 @@ static void purge_old_ps_buffers(struct ieee80211_local *local)
total += skb_queue_len(&sta->ps_tx_buf[ac]);
if (skb) {
purged++;
dev_kfree_skb(skb);
ieee80211_free_txskb(&local->hw, skb);
break;
}
}
@ -466,7 +466,7 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx)
ps_dbg(tx->sdata,
"STA %pM TX buffer for AC %d full - dropping oldest frame\n",
sta->sta.addr, ac);
dev_kfree_skb(old);
ieee80211_free_txskb(&local->hw, old);
} else
tx->local->total_ps_buffered++;
@ -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:
@ -615,7 +615,7 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)
memset(&txrc, 0, sizeof(txrc));
sband = tx->local->hw.wiphy->bands[tx->channel->band];
sband = tx->local->hw.wiphy->bands[info->band];
len = min_t(u32, tx->skb->len + FCS_LEN,
tx->local->hw.wiphy->frag_threshold);
@ -626,13 +626,13 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)
txrc.bss_conf = &tx->sdata->vif.bss_conf;
txrc.skb = tx->skb;
txrc.reported_rate.idx = -1;
txrc.rate_idx_mask = tx->sdata->rc_rateidx_mask[tx->channel->band];
txrc.rate_idx_mask = tx->sdata->rc_rateidx_mask[info->band];
if (txrc.rate_idx_mask == (1 << sband->n_bitrates) - 1)
txrc.max_rate_idx = -1;
else
txrc.max_rate_idx = fls(txrc.rate_idx_mask) - 1;
memcpy(txrc.rate_idx_mcs_mask,
tx->sdata->rc_rateidx_mcs_mask[tx->channel->band],
tx->sdata->rc_rateidx_mcs_mask[info->band],
sizeof(txrc.rate_idx_mcs_mask));
txrc.bss = (tx->sdata->vif.type == NL80211_IFTYPE_AP ||
tx->sdata->vif.type == NL80211_IFTYPE_MESH_POINT ||
@ -667,7 +667,7 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)
"scanning and associated. Target station: "
"%pM on %d GHz band\n",
tx->sdata->name, hdr->addr1,
tx->channel->band ? 5 : 2))
info->band ? 5 : 2))
return TX_DROP;
/*
@ -1103,7 +1103,7 @@ static bool ieee80211_tx_prep_agg(struct ieee80211_tx_data *tx,
spin_unlock(&tx->sta->lock);
if (purge_skb)
dev_kfree_skb(purge_skb);
ieee80211_free_txskb(&tx->local->hw, purge_skb);
}
/* reset session timer */
@ -1131,7 +1131,6 @@ ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata,
tx->skb = skb;
tx->local = local;
tx->sdata = sdata;
tx->channel = local->hw.conf.channel;
__skb_queue_head_init(&tx->skbs);
/*
@ -1204,6 +1203,7 @@ static bool ieee80211_tx_frags(struct ieee80211_local *local,
struct sk_buff_head *skbs,
bool txpending)
{
struct ieee80211_tx_control control;
struct sk_buff *skb, *tmp;
unsigned long flags;
@ -1214,7 +1214,7 @@ static bool ieee80211_tx_frags(struct ieee80211_local *local,
#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
if (WARN_ON_ONCE(q >= local->hw.queues)) {
__skb_unlink(skb, skbs);
dev_kfree_skb(skb);
ieee80211_free_txskb(&local->hw, skb);
continue;
}
#endif
@ -1240,10 +1240,10 @@ static bool ieee80211_tx_frags(struct ieee80211_local *local,
spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
info->control.vif = vif;
info->control.sta = sta;
control.sta = sta;
__skb_unlink(skb, skbs);
drv_tx(local, skb);
drv_tx(local, &control, skb);
}
return true;
@ -1356,7 +1356,7 @@ static int invoke_tx_handlers(struct ieee80211_tx_data *tx)
if (unlikely(res == TX_DROP)) {
I802_DEBUG_INC(tx->local->tx_handlers_drop);
if (tx->skb)
dev_kfree_skb(tx->skb);
ieee80211_free_txskb(&tx->local->hw, tx->skb);
else
__skb_queue_purge(&tx->skbs);
return -1;
@ -1393,14 +1393,13 @@ static bool ieee80211_tx(struct ieee80211_sub_if_data *sdata,
res_prepare = ieee80211_tx_prepare(sdata, &tx, skb);
if (unlikely(res_prepare == TX_DROP)) {
dev_kfree_skb(skb);
ieee80211_free_txskb(&local->hw, skb);
goto out;
} else if (unlikely(res_prepare == TX_QUEUED)) {
goto out;
}
tx.channel = local->hw.conf.channel;
info->band = tx.channel->band;
info->band = local->hw.conf.channel->band;
/* set up hw_queue value early */
if (!(info->flags & IEEE80211_TX_CTL_TX_OFFCHAN) ||
@ -1466,7 +1465,7 @@ void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb)
headroom = max_t(int, 0, headroom);
if (ieee80211_skb_resize(sdata, skb, headroom, may_encrypt)) {
dev_kfree_skb(skb);
ieee80211_free_txskb(&local->hw, skb);
rcu_read_unlock();
return;
}
@ -1720,7 +1719,7 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_local *local = sdata->local;
struct ieee80211_tx_info *info;
int ret = NETDEV_TX_BUSY, head_need;
int head_need;
u16 ethertype, hdrlen, meshhdrlen = 0;
__le16 fc;
struct ieee80211_hdr hdr;
@ -1736,10 +1735,8 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
u32 info_flags = 0;
u16 info_id = 0;
if (unlikely(skb->len < ETH_HLEN)) {
ret = NETDEV_TX_OK;
if (unlikely(skb->len < ETH_HLEN))
goto fail;
}
/* convert Ethernet header to proper 802.11 header (based on
* operation mode) */
@ -1787,7 +1784,6 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
if (!sdata->u.mesh.mshcfg.dot11MeshTTL) {
/* Do not send frames with mesh_ttl == 0 */
sdata->u.mesh.mshstats.dropped_frames_ttl++;
ret = NETDEV_TX_OK;
goto fail;
}
rcu_read_lock();
@ -1874,10 +1870,8 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
if (tdls_direct) {
/* link during setup - throw out frames to peer */
if (!tdls_auth) {
ret = NETDEV_TX_OK;
if (!tdls_auth)
goto fail;
}
/* DA SA BSSID */
memcpy(hdr.addr1, skb->data, ETH_ALEN);
@ -1911,7 +1905,6 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
hdrlen = 24;
break;
default:
ret = NETDEV_TX_OK;
goto fail;
}
@ -1956,7 +1949,6 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
I802_DEBUG_INC(local->tx_handlers_drop_unauth_port);
ret = NETDEV_TX_OK;
goto fail;
}
@ -2011,10 +2003,8 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
skb = skb_clone(skb, GFP_ATOMIC);
kfree_skb(tmp_skb);
if (!skb) {
ret = NETDEV_TX_OK;
if (!skb)
goto fail;
}
}
hdr.frame_control = fc;
@ -2060,8 +2050,10 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
head_need += IEEE80211_ENCRYPT_HEADROOM;
head_need += local->tx_headroom;
head_need = max_t(int, 0, head_need);
if (ieee80211_skb_resize(sdata, skb, head_need, true))
goto fail;
if (ieee80211_skb_resize(sdata, skb, head_need, true)) {
ieee80211_free_txskb(&local->hw, skb);
return NETDEV_TX_OK;
}
}
if (encaps_data) {
@ -2117,10 +2109,8 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
return NETDEV_TX_OK;
fail:
if (ret == NETDEV_TX_OK)
dev_kfree_skb(skb);
return ret;
dev_kfree_skb(skb);
return NETDEV_TX_OK;
}
@ -2196,7 +2186,7 @@ void ieee80211_tx_pending(unsigned long data)
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
if (WARN_ON(!info->control.vif)) {
kfree_skb(skb);
ieee80211_free_txskb(&local->hw, skb);
continue;
}
@ -2295,12 +2285,9 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw,
struct ieee80211_sub_if_data *sdata = NULL;
struct ieee80211_if_ap *ap = NULL;
struct beacon_data *beacon;
struct ieee80211_supported_band *sband;
enum ieee80211_band band = local->hw.conf.channel->band;
enum ieee80211_band band = local->oper_channel->band;
struct ieee80211_tx_rate_control txrc;
sband = local->hw.wiphy->bands[band];
rcu_read_lock();
sdata = vif_to_sdata(vif);
@ -2410,7 +2397,7 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw,
memset(mgmt, 0, hdr_len);
mgmt->frame_control =
cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
memset(mgmt->da, 0xff, ETH_ALEN);
eth_broadcast_addr(mgmt->da);
memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN);
mgmt->u.beacon.beacon_int =
@ -2422,9 +2409,9 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw,
*pos++ = WLAN_EID_SSID;
*pos++ = 0x0;
if (ieee80211_add_srates_ie(sdata, skb, true) ||
if (ieee80211_add_srates_ie(sdata, skb, true, band) ||
mesh_add_ds_params_ie(skb, sdata) ||
ieee80211_add_ext_srates_ie(sdata, skb, true) ||
ieee80211_add_ext_srates_ie(sdata, skb, true, band) ||
mesh_add_rsn_ie(skb, sdata) ||
mesh_add_ht_cap_ie(skb, sdata) ||
mesh_add_ht_oper_ie(skb, sdata) ||
@ -2447,12 +2434,12 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw,
memset(&txrc, 0, sizeof(txrc));
txrc.hw = hw;
txrc.sband = sband;
txrc.sband = local->hw.wiphy->bands[band];
txrc.bss_conf = &sdata->vif.bss_conf;
txrc.skb = skb;
txrc.reported_rate.idx = -1;
txrc.rate_idx_mask = sdata->rc_rateidx_mask[band];
if (txrc.rate_idx_mask == (1 << sband->n_bitrates) - 1)
if (txrc.rate_idx_mask == (1 << txrc.sband->n_bitrates) - 1)
txrc.max_rate_idx = -1;
else
txrc.max_rate_idx = fls(txrc.rate_idx_mask) - 1;
@ -2476,7 +2463,8 @@ struct sk_buff *ieee80211_proberesp_get(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct ieee80211_if_ap *ap = NULL;
struct sk_buff *presp = NULL, *skb = NULL;
struct sk_buff *skb = NULL;
struct probe_resp *presp = NULL;
struct ieee80211_hdr *hdr;
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
@ -2490,10 +2478,12 @@ struct sk_buff *ieee80211_proberesp_get(struct ieee80211_hw *hw,
if (!presp)
goto out;
skb = skb_copy(presp, GFP_ATOMIC);
skb = dev_alloc_skb(presp->len);
if (!skb)
goto out;
memcpy(skb_put(skb, presp->len), presp->data, presp->len);
hdr = (struct ieee80211_hdr *) skb->data;
memset(hdr->addr1, 0, sizeof(hdr->addr1));
@ -2604,9 +2594,9 @@ struct sk_buff *ieee80211_probereq_get(struct ieee80211_hw *hw,
memset(hdr, 0, sizeof(*hdr));
hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
IEEE80211_STYPE_PROBE_REQ);
memset(hdr->addr1, 0xff, ETH_ALEN);
eth_broadcast_addr(hdr->addr1);
memcpy(hdr->addr2, vif->addr, ETH_ALEN);
memset(hdr->addr3, 0xff, ETH_ALEN);
eth_broadcast_addr(hdr->addr3);
pos = skb_put(skb, ie_ssid_len);
*pos++ = WLAN_EID_SSID;
@ -2703,8 +2693,7 @@ ieee80211_get_buffered_bc(struct ieee80211_hw *hw,
info = IEEE80211_SKB_CB(skb);
tx.flags |= IEEE80211_TX_PS_BUFFERED;
tx.channel = local->hw.conf.channel;
info->band = tx.channel->band;
info->band = local->oper_channel->band;
if (invoke_tx_handlers(&tx))
skb = NULL;

108
net/mac80211/util.c
View file

@ -276,6 +276,9 @@ void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue)
list_for_each_entry_rcu(sdata, &local->interfaces, list) {
int ac;
if (!sdata->dev)
continue;
if (test_bit(SDATA_STATE_OFFCHANNEL, &sdata->state))
continue;
@ -364,6 +367,9 @@ static void __ieee80211_stop_queue(struct ieee80211_hw *hw, int queue,
list_for_each_entry_rcu(sdata, &local->interfaces, list) {
int ac;
if (!sdata->dev)
continue;
for (ac = 0; ac < n_acs; ac++) {
if (sdata->vif.hw_queue[ac] == queue ||
sdata->vif.cab_queue == queue)
@ -768,8 +774,11 @@ u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
elem_parse_failed = true;
break;
case WLAN_EID_CHANNEL_SWITCH:
elems->ch_switch_elem = pos;
elems->ch_switch_elem_len = elen;
if (elen != sizeof(struct ieee80211_channel_sw_ie)) {
elem_parse_failed = true;
break;
}
elems->ch_switch_ie = (void *)pos;
break;
case WLAN_EID_QUIET:
if (!elems->quiet_elem) {
@ -783,8 +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;
@ -832,7 +844,7 @@ void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
memset(&qparam, 0, sizeof(qparam));
use_11b = (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ) &&
use_11b = (local->oper_channel->band == IEEE80211_BAND_2GHZ) &&
!(sdata->flags & IEEE80211_SDATA_OPERATING_GMODE);
/*
@ -899,7 +911,8 @@ void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
drv_conf_tx(local, sdata, ac, &qparam);
}
if (sdata->vif.type != NL80211_IFTYPE_MONITOR) {
if (sdata->vif.type != NL80211_IFTYPE_MONITOR &&
sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE) {
sdata->vif.bss_conf.qos = enable_qos;
if (bss_notify)
ieee80211_bss_info_change_notify(sdata,
@ -919,7 +932,7 @@ void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
if ((supp_rates[i] & 0x7f) * 5 > 110)
have_higher_than_11mbit = 1;
if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ &&
if (local->oper_channel->band == IEEE80211_BAND_2GHZ &&
have_higher_than_11mbit)
sdata->flags |= IEEE80211_SDATA_OPERATING_GMODE;
else
@ -994,6 +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,
@ -1100,6 +1152,7 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
u8 *dst, u32 ratemask,
struct ieee80211_channel *chan,
const u8 *ssid, size_t ssid_len,
const u8 *ie, size_t ie_len,
bool directed)
@ -1109,7 +1162,7 @@ struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt;
size_t buf_len;
u8 *buf;
u8 chan;
u8 chan_no;
/* FIXME: come up with a proper value */
buf = kmalloc(200 + ie_len, GFP_KERNEL);
@ -1122,14 +1175,12 @@ struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
* badly-behaved APs don't respond when this parameter is included.
*/
if (directed)
chan = 0;
chan_no = 0;
else
chan = ieee80211_frequency_to_channel(
local->hw.conf.channel->center_freq);
chan_no = ieee80211_frequency_to_channel(chan->center_freq);
buf_len = ieee80211_build_preq_ies(local, buf, ie, ie_len,
local->hw.conf.channel->band,
ratemask, chan);
buf_len = ieee80211_build_preq_ies(local, buf, ie, ie_len, chan->band,
ratemask, chan_no);
skb = ieee80211_probereq_get(&local->hw, &sdata->vif,
ssid, ssid_len,
@ -1154,11 +1205,13 @@ struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
const u8 *ssid, size_t ssid_len,
const u8 *ie, size_t ie_len,
u32 ratemask, bool directed, bool no_cck)
u32 ratemask, bool directed, bool no_cck,
struct ieee80211_channel *channel)
{
struct sk_buff *skb;
skb = ieee80211_build_probe_req(sdata, dst, ratemask, ssid, ssid_len,
skb = ieee80211_build_probe_req(sdata, dst, ratemask, channel,
ssid, ssid_len,
ie, ie_len, directed);
if (skb) {
if (no_cck)
@ -1359,7 +1412,8 @@ int ieee80211_reconfig(struct ieee80211_local *local)
switch (sdata->vif.type) {
case NL80211_IFTYPE_STATION:
changed |= BSS_CHANGED_ASSOC |
BSS_CHANGED_ARP_FILTER;
BSS_CHANGED_ARP_FILTER |
BSS_CHANGED_PS;
mutex_lock(&sdata->u.mgd.mtx);
ieee80211_bss_info_change_notify(sdata, changed);
mutex_unlock(&sdata->u.mgd.mtx);
@ -1385,6 +1439,9 @@ int ieee80211_reconfig(struct ieee80211_local *local)
case NL80211_IFTYPE_MONITOR:
/* ignore virtual */
break;
case NL80211_IFTYPE_P2P_DEVICE:
changed = BSS_CHANGED_IDLE;
break;
case NL80211_IFTYPE_UNSPECIFIED:
case NUM_NL80211_IFTYPES:
case NL80211_IFTYPE_P2P_CLIENT:
@ -1549,14 +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
@ -1571,6 +1627,8 @@ void ieee80211_recalc_smps(struct ieee80211_local *local)
list_for_each_entry(sdata, &local->interfaces, list) {
if (!ieee80211_sdata_running(sdata))
continue;
if (sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE)
continue;
if (sdata->vif.type != NL80211_IFTYPE_STATION)
goto set;
@ -1583,12 +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)
@ -1809,7 +1869,8 @@ ieee80211_ht_oper_to_channel_type(struct ieee80211_ht_operation *ht_oper)
}
int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
struct sk_buff *skb, bool need_basic)
struct sk_buff *skb, bool need_basic,
enum ieee80211_band band)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_supported_band *sband;
@ -1817,7 +1878,7 @@ int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
u8 i, rates, *pos;
u32 basic_rates = sdata->vif.bss_conf.basic_rates;
sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
sband = local->hw.wiphy->bands[band];
rates = sband->n_bitrates;
if (rates > 8)
rates = 8;
@ -1840,7 +1901,8 @@ int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
}
int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
struct sk_buff *skb, bool need_basic)
struct sk_buff *skb, bool need_basic,
enum ieee80211_band band)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_supported_band *sband;
@ -1848,7 +1910,7 @@ int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
u8 i, exrates, *pos;
u32 basic_rates = sdata->vif.bss_conf.basic_rates;
sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
sband = local->hw.wiphy->bands[band];
exrates = sband->n_bitrates;
if (exrates > 8)
exrates -= 8;