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Diffstat (limited to 'net/mac80211/main.c')
-rw-r--r--net/mac80211/main.c185
1 files changed, 126 insertions, 59 deletions
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 24b14363d6e7..a6f1d8a869bc 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -161,30 +161,67 @@ int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed)
if (WARN_ON(!netif_running(sdata->dev)))
return 0;
- if (WARN_ON(sdata->vif.type == NL80211_IFTYPE_AP_VLAN))
- return -EINVAL;
-
- if (!local->ops->config_interface)
- return 0;
-
memset(&conf, 0, sizeof(conf));
- conf.changed = changed;
- if (sdata->vif.type == NL80211_IFTYPE_STATION ||
- sdata->vif.type == NL80211_IFTYPE_ADHOC)
- conf.bssid = sdata->u.sta.bssid;
+ if (sdata->vif.type == NL80211_IFTYPE_STATION)
+ conf.bssid = sdata->u.mgd.bssid;
+ else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
+ conf.bssid = sdata->u.ibss.bssid;
else if (sdata->vif.type == NL80211_IFTYPE_AP)
conf.bssid = sdata->dev->dev_addr;
else if (ieee80211_vif_is_mesh(&sdata->vif)) {
- u8 zero[ETH_ALEN] = { 0 };
+ static const u8 zero[ETH_ALEN] = { 0 };
conf.bssid = zero;
} else {
WARN_ON(1);
return -EINVAL;
}
- if (WARN_ON(!conf.bssid && (changed & IEEE80211_IFCC_BSSID)))
- return -EINVAL;
+ if (!local->ops->config_interface)
+ return 0;
+
+ switch (sdata->vif.type) {
+ case NL80211_IFTYPE_AP:
+ case NL80211_IFTYPE_ADHOC:
+ case NL80211_IFTYPE_MESH_POINT:
+ break;
+ default:
+ /* do not warn to simplify caller in scan.c */
+ changed &= ~IEEE80211_IFCC_BEACON_ENABLED;
+ if (WARN_ON(changed & IEEE80211_IFCC_BEACON))
+ return -EINVAL;
+ changed &= ~IEEE80211_IFCC_BEACON;
+ break;
+ }
+
+ if (changed & IEEE80211_IFCC_BEACON_ENABLED) {
+ if (local->sw_scanning) {
+ conf.enable_beacon = false;
+ } else {
+ /*
+ * Beacon should be enabled, but AP mode must
+ * check whether there is a beacon configured.
+ */
+ switch (sdata->vif.type) {
+ case NL80211_IFTYPE_AP:
+ conf.enable_beacon =
+ !!rcu_dereference(sdata->u.ap.beacon);
+ break;
+ case NL80211_IFTYPE_ADHOC:
+ conf.enable_beacon = !!sdata->u.ibss.probe_resp;
+ break;
+ case NL80211_IFTYPE_MESH_POINT:
+ conf.enable_beacon = true;
+ break;
+ default:
+ /* not reached */
+ WARN_ON(1);
+ break;
+ }
+ }
+ }
+
+ conf.changed = changed;
return local->ops->config_interface(local_to_hw(local),
&sdata->vif, &conf);
@@ -208,26 +245,22 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
}
if (chan != local->hw.conf.channel ||
- channel_type != local->hw.conf.ht.channel_type) {
+ channel_type != local->hw.conf.channel_type) {
local->hw.conf.channel = chan;
- local->hw.conf.ht.channel_type = channel_type;
- switch (channel_type) {
- case NL80211_CHAN_NO_HT:
- local->hw.conf.ht.enabled = false;
- break;
- case NL80211_CHAN_HT20:
- case NL80211_CHAN_HT40MINUS:
- case NL80211_CHAN_HT40PLUS:
- local->hw.conf.ht.enabled = true;
- break;
- }
+ local->hw.conf.channel_type = channel_type;
changed |= IEEE80211_CONF_CHANGE_CHANNEL;
}
- if (!local->hw.conf.power_level)
+ if (local->sw_scanning)
power = chan->max_power;
else
- power = min(chan->max_power, local->hw.conf.power_level);
+ power = local->power_constr_level ?
+ (chan->max_power - local->power_constr_level) :
+ chan->max_power;
+
+ if (local->user_power_level)
+ power = min(power, local->user_power_level);
+
if (local->hw.conf.power_level != power) {
changed |= IEEE80211_CONF_CHANGE_POWER;
local->hw.conf.power_level = power;
@@ -667,7 +700,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
const struct ieee80211_ops *ops)
{
struct ieee80211_local *local;
- int priv_size;
+ int priv_size, i;
struct wiphy *wiphy;
/* Ensure 32-byte alignment of our private data and hw private data.
@@ -695,6 +728,10 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
return NULL;
wiphy->privid = mac80211_wiphy_privid;
+ wiphy->max_scan_ssids = 4;
+ /* Yes, putting cfg80211_bss into ieee80211_bss is a hack */
+ wiphy->bss_priv_size = sizeof(struct ieee80211_bss) -
+ sizeof(struct cfg80211_bss);
local = wiphy_priv(wiphy);
local->hw.wiphy = wiphy;
@@ -722,6 +759,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
local->hw.conf.radio_enabled = true;
INIT_LIST_HEAD(&local->interfaces);
+ mutex_init(&local->iflist_mtx);
spin_lock_init(&local->key_lock);
@@ -738,6 +776,8 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
sta_info_init(local);
+ for (i = 0; i < IEEE80211_MAX_QUEUES; i++)
+ skb_queue_head_init(&local->pending[i]);
tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending,
(unsigned long)local);
tasklet_disable(&local->tx_pending_tasklet);
@@ -750,10 +790,29 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
skb_queue_head_init(&local->skb_queue);
skb_queue_head_init(&local->skb_queue_unreliable);
+ spin_lock_init(&local->ampdu_lock);
+
return local_to_hw(local);
}
EXPORT_SYMBOL(ieee80211_alloc_hw);
+static const struct net_device_ops ieee80211_master_ops = {
+ .ndo_start_xmit = ieee80211_master_start_xmit,
+ .ndo_open = ieee80211_master_open,
+ .ndo_stop = ieee80211_master_stop,
+ .ndo_set_multicast_list = ieee80211_master_set_multicast_list,
+ .ndo_select_queue = ieee80211_select_queue,
+};
+
+static void ieee80211_master_setup(struct net_device *mdev)
+{
+ mdev->type = ARPHRD_IEEE80211;
+ mdev->netdev_ops = &ieee80211_master_ops;
+ mdev->header_ops = &ieee80211_header_ops;
+ mdev->tx_queue_len = 1000;
+ mdev->addr_len = ETH_ALEN;
+}
+
int ieee80211_register_hw(struct ieee80211_hw *hw)
{
struct ieee80211_local *local = hw_to_local(hw);
@@ -761,25 +820,33 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
enum ieee80211_band band;
struct net_device *mdev;
struct ieee80211_master_priv *mpriv;
+ int channels, i, j;
/*
* generic code guarantees at least one band,
* set this very early because much code assumes
* that hw.conf.channel is assigned
*/
+ channels = 0;
for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
struct ieee80211_supported_band *sband;
sband = local->hw.wiphy->bands[band];
- if (sband) {
+ if (sband && !local->oper_channel) {
/* init channel we're on */
local->hw.conf.channel =
local->oper_channel =
local->scan_channel = &sband->channels[0];
- break;
}
+ if (sband)
+ channels += sband->n_channels;
}
+ local->int_scan_req.n_channels = channels;
+ local->int_scan_req.channels = kzalloc(sizeof(void *) * channels, GFP_KERNEL);
+ if (!local->int_scan_req.channels)
+ return -ENOMEM;
+
/* if low-level driver supports AP, we also support VLAN */
if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_AP))
local->hw.wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP_VLAN);
@@ -787,9 +854,14 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
/* mac80211 always supports monitor */
local->hw.wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR);
+ if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
+ local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
+ else if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)
+ local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
+
result = wiphy_register(local->hw.wiphy);
if (result < 0)
- return result;
+ goto fail_wiphy_register;
/*
* We use the number of queues for feature tests (QoS, HT) internally
@@ -797,14 +869,10 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
*/
if (hw->queues > IEEE80211_MAX_QUEUES)
hw->queues = IEEE80211_MAX_QUEUES;
- if (hw->ampdu_queues > IEEE80211_MAX_AMPDU_QUEUES)
- hw->ampdu_queues = IEEE80211_MAX_AMPDU_QUEUES;
- if (hw->queues < 4)
- hw->ampdu_queues = 0;
mdev = alloc_netdev_mq(sizeof(struct ieee80211_master_priv),
- "wmaster%d", ether_setup,
- ieee80211_num_queues(hw));
+ "wmaster%d", ieee80211_master_setup,
+ hw->queues);
if (!mdev)
goto fail_mdev_alloc;
@@ -812,17 +880,8 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
mpriv->local = local;
local->mdev = mdev;
- ieee80211_rx_bss_list_init(local);
-
- mdev->hard_start_xmit = ieee80211_master_start_xmit;
- mdev->open = ieee80211_master_open;
- mdev->stop = ieee80211_master_stop;
- mdev->type = ARPHRD_IEEE80211;
- mdev->header_ops = &ieee80211_header_ops;
- mdev->set_multicast_list = ieee80211_master_set_multicast_list;
-
local->hw.workqueue =
- create_freezeable_workqueue(wiphy_name(local->hw.wiphy));
+ create_singlethread_workqueue(wiphy_name(local->hw.wiphy));
if (!local->hw.workqueue) {
result = -ENOMEM;
goto fail_workqueue;
@@ -846,15 +905,6 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
local->hw.conf.listen_interval = local->hw.max_listen_interval;
- local->wstats_flags |= local->hw.flags & (IEEE80211_HW_SIGNAL_UNSPEC |
- IEEE80211_HW_SIGNAL_DB |
- IEEE80211_HW_SIGNAL_DBM) ?
- IW_QUAL_QUAL_UPDATED : IW_QUAL_QUAL_INVALID;
- local->wstats_flags |= local->hw.flags & IEEE80211_HW_NOISE_DBM ?
- IW_QUAL_NOISE_UPDATED : IW_QUAL_NOISE_INVALID;
- if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
- local->wstats_flags |= IW_QUAL_DBM;
-
result = sta_info_start(local);
if (result < 0)
goto fail_sta_info;
@@ -866,6 +916,7 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
memcpy(local->mdev->dev_addr, local->hw.wiphy->perm_addr, ETH_ALEN);
SET_NETDEV_DEV(local->mdev, wiphy_dev(local->hw.wiphy));
+ local->mdev->features |= NETIF_F_NETNS_LOCAL;
result = register_netdevice(local->mdev);
if (result < 0)
@@ -887,8 +938,6 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
goto fail_wep;
}
- local->mdev->select_queue = ieee80211_select_queue;
-
/* add one default STA interface if supported */
if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_STATION)) {
result = ieee80211_if_add(local, "wlan%d", NULL,
@@ -902,6 +951,20 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
ieee80211_led_init(local);
+ /* alloc internal scan request */
+ i = 0;
+ local->int_scan_req.ssids = &local->scan_ssid;
+ local->int_scan_req.n_ssids = 1;
+ for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
+ if (!hw->wiphy->bands[band])
+ continue;
+ for (j = 0; j < hw->wiphy->bands[band]->n_channels; j++) {
+ local->int_scan_req.channels[i] =
+ &hw->wiphy->bands[band]->channels[j];
+ i++;
+ }
+ }
+
return 0;
fail_wep:
@@ -920,6 +983,8 @@ fail_workqueue:
free_netdev(local->mdev);
fail_mdev_alloc:
wiphy_unregister(local->hw.wiphy);
+fail_wiphy_register:
+ kfree(local->int_scan_req.channels);
return result;
}
EXPORT_SYMBOL(ieee80211_register_hw);
@@ -947,7 +1012,6 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw)
rtnl_unlock();
- ieee80211_rx_bss_list_deinit(local);
ieee80211_clear_tx_pending(local);
sta_info_stop(local);
rate_control_deinitialize(local);
@@ -965,6 +1029,7 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw)
ieee80211_wep_free(local);
ieee80211_led_exit(local);
free_netdev(local->mdev);
+ kfree(local->int_scan_req.channels);
}
EXPORT_SYMBOL(ieee80211_unregister_hw);
@@ -972,6 +1037,8 @@ void ieee80211_free_hw(struct ieee80211_hw *hw)
{
struct ieee80211_local *local = hw_to_local(hw);
+ mutex_destroy(&local->iflist_mtx);
+
wiphy_free(local->hw.wiphy);
}
EXPORT_SYMBOL(ieee80211_free_hw);