* - RX filtering based on filter configuration (data->rx_filter)
*/
+#include <linux/list.h>
+#include <linux/spinlock.h>
#include <net/mac80211.h>
#include <net/ieee80211_radiotap.h>
#include <linux/if_arp.h>
module_param(radios, int, 0444);
MODULE_PARM_DESC(radios, "Number of simulated radios");
+struct hwsim_vif_priv {
+ u32 magic;
+};
+
+#define HWSIM_VIF_MAGIC 0x69537748
+
+static inline void hwsim_check_magic(struct ieee80211_vif *vif)
+{
+ struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
+ WARN_ON(vp->magic != HWSIM_VIF_MAGIC);
+}
+
+static inline void hwsim_set_magic(struct ieee80211_vif *vif)
+{
+ struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
+ vp->magic = HWSIM_VIF_MAGIC;
+}
+
+static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
+{
+ struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
+ vp->magic = 0;
+}
+
+struct hwsim_sta_priv {
+ u32 magic;
+};
+
+#define HWSIM_STA_MAGIC 0x6d537748
+
+static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
+{
+ struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
+ WARN_ON(sp->magic != HWSIM_VIF_MAGIC);
+}
+
+static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
+{
+ struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
+ sp->magic = HWSIM_VIF_MAGIC;
+}
+
+static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
+{
+ struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
+ sp->magic = 0;
+}
static struct class *hwsim_class;
-static struct ieee80211_hw **hwsim_radios;
-static int hwsim_radio_count;
static struct net_device *hwsim_mon; /* global monitor netdev */
{ .bitrate = 540 }
};
+static spinlock_t hwsim_radio_lock;
+static struct list_head hwsim_radios;
+
struct mac80211_hwsim_data {
+ struct list_head list;
+ struct ieee80211_hw *hw;
struct device *dev;
struct ieee80211_supported_band band;
struct ieee80211_channel channels[ARRAY_SIZE(hwsim_channels)];
}
-static int mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
- struct sk_buff *skb)
+static bool mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
+ struct sk_buff *skb)
{
- struct mac80211_hwsim_data *data = hw->priv;
- int i, ack = 0;
+ struct mac80211_hwsim_data *data = hw->priv, *data2;
+ bool ack = false;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct ieee80211_rx_status rx_status;
/* TODO: simulate signal strength (and optional packet drop) */
/* Copy skb to all enabled radios that are on the current frequency */
- for (i = 0; i < hwsim_radio_count; i++) {
- struct mac80211_hwsim_data *data2;
+ spin_lock(&hwsim_radio_lock);
+ list_for_each_entry(data2, &hwsim_radios, list) {
struct sk_buff *nskb;
- if (hwsim_radios[i] == NULL || hwsim_radios[i] == hw)
+ if (data == data2)
continue;
- data2 = hwsim_radios[i]->priv;
+
if (!data2->started || !data2->radio_enabled ||
data->channel->center_freq != data2->channel->center_freq)
continue;
if (nskb == NULL)
continue;
- if (memcmp(hdr->addr1, hwsim_radios[i]->wiphy->perm_addr,
+ if (memcmp(hdr->addr1, data2->hw->wiphy->perm_addr,
ETH_ALEN) == 0)
- ack = 1;
- ieee80211_rx_irqsafe(hwsim_radios[i], nskb, &rx_status);
+ ack = true;
+ ieee80211_rx_irqsafe(data2->hw, nskb, &rx_status);
}
+ spin_unlock(&hwsim_radio_lock);
return ack;
}
static int mac80211_hwsim_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
{
struct mac80211_hwsim_data *data = hw->priv;
- int ack;
+ bool ack;
struct ieee80211_tx_info *txi;
mac80211_hwsim_monitor_rx(hw, skb);
ack = mac80211_hwsim_tx_frame(hw, skb);
txi = IEEE80211_SKB_CB(skb);
+
+ if (txi->control.vif)
+ hwsim_check_magic(txi->control.vif);
+ if (txi->control.sta)
+ hwsim_check_sta_magic(txi->control.sta);
+
memset(&txi->status, 0, sizeof(txi->status));
if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK)) {
if (ack)
printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%s)\n",
wiphy_name(hw->wiphy), __func__, conf->type,
print_mac(mac, conf->mac_addr));
+ hwsim_set_magic(conf->vif);
return 0;
}
printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%s)\n",
wiphy_name(hw->wiphy), __func__, conf->type,
print_mac(mac, conf->mac_addr));
+ hwsim_check_magic(conf->vif);
+ hwsim_clear_magic(conf->vif);
}
struct sk_buff *skb;
struct ieee80211_tx_info *info;
- if (vif->type != IEEE80211_IF_TYPE_AP)
+ hwsim_check_magic(vif);
+
+ if (vif->type != NL80211_IFTYPE_AP)
return;
skb = ieee80211_beacon_get(hw, vif);
*total_flags = data->rx_filter;
}
+static int mac80211_hwsim_config_interface(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_if_conf *conf)
+{
+ hwsim_check_magic(vif);
+ return 0;
+}
+
+static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_bss_conf *info,
+ u32 changed)
+{
+ hwsim_check_magic(vif);
+}
+
+static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ enum sta_notify_cmd cmd,
+ struct ieee80211_sta *sta)
+{
+ hwsim_check_magic(vif);
+ switch (cmd) {
+ case STA_NOTIFY_ADD:
+ hwsim_set_sta_magic(sta);
+ break;
+ case STA_NOTIFY_REMOVE:
+ hwsim_clear_sta_magic(sta);
+ break;
+ }
+}
+static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
+ struct ieee80211_sta *sta,
+ bool set)
+{
+ hwsim_check_sta_magic(sta);
+ return 0;
+}
static const struct ieee80211_ops mac80211_hwsim_ops =
{
.remove_interface = mac80211_hwsim_remove_interface,
.config = mac80211_hwsim_config,
.configure_filter = mac80211_hwsim_configure_filter,
+ .config_interface = mac80211_hwsim_config_interface,
+ .bss_info_changed = mac80211_hwsim_bss_info_changed,
+ .sta_notify = mac80211_hwsim_sta_notify,
+ .set_tim = mac80211_hwsim_set_tim,
};
static void mac80211_hwsim_free(void)
{
- int i;
-
- for (i = 0; i < hwsim_radio_count; i++) {
- if (hwsim_radios[i]) {
- struct mac80211_hwsim_data *data;
- data = hwsim_radios[i]->priv;
- ieee80211_unregister_hw(hwsim_radios[i]);
- device_unregister(data->dev);
- ieee80211_free_hw(hwsim_radios[i]);
- }
+ struct list_head tmplist, *i, *tmp;
+ struct mac80211_hwsim_data *data;
+
+ INIT_LIST_HEAD(&tmplist);
+
+ spin_lock_bh(&hwsim_radio_lock);
+ list_for_each_safe(i, tmp, &hwsim_radios)
+ list_move(i, &tmplist);
+ spin_unlock_bh(&hwsim_radio_lock);
+
+ list_for_each_entry(data, &tmplist, list) {
+ ieee80211_unregister_hw(data->hw);
+ device_unregister(data->dev);
+ ieee80211_free_hw(data->hw);
}
- kfree(hwsim_radios);
class_destroy(hwsim_class);
}
struct ieee80211_hw *hw;
DECLARE_MAC_BUF(mac);
- if (radios < 1 || radios > 65535)
+ if (radios < 1 || radios > 100)
return -EINVAL;
- hwsim_radio_count = radios;
- hwsim_radios = kcalloc(hwsim_radio_count,
- sizeof(struct ieee80211_hw *), GFP_KERNEL);
- if (hwsim_radios == NULL)
- return -ENOMEM;
+ spin_lock_init(&hwsim_radio_lock);
+ INIT_LIST_HEAD(&hwsim_radios);
hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
- if (IS_ERR(hwsim_class)) {
- kfree(hwsim_radios);
+ if (IS_ERR(hwsim_class))
return PTR_ERR(hwsim_class);
- }
memset(addr, 0, ETH_ALEN);
addr[0] = 0x02;
- for (i = 0; i < hwsim_radio_count; i++) {
+ for (i = 0; i < radios; i++) {
printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
i);
hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);
- if (hw == NULL) {
+ if (!hw) {
printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
"failed\n");
err = -ENOMEM;
goto failed;
}
- hwsim_radios[i] = hw;
-
data = hw->priv;
- data->dev = device_create_drvdata(hwsim_class, NULL, 0, hw,
- "hwsim%d", i);
+ data->hw = hw;
+
+ data->dev = device_create(hwsim_class, NULL, 0, hw,
+ "hwsim%d", i);
if (IS_ERR(data->dev)) {
printk(KERN_DEBUG
- "mac80211_hwsim: device_create_drvdata "
+ "mac80211_hwsim: device_create "
"failed (%ld)\n", PTR_ERR(data->dev));
err = -ENOMEM;
goto failed_drvdata;
SET_IEEE80211_PERM_ADDR(hw, addr);
hw->channel_change_time = 1;
- hw->queues = 1;
+ hw->queues = 4;
+ hw->wiphy->interface_modes =
+ BIT(NL80211_IFTYPE_STATION) |
+ BIT(NL80211_IFTYPE_AP);
+ hw->ampdu_queues = 1;
+
+ /* ask mac80211 to reserve space for magic */
+ hw->vif_data_size = sizeof(struct hwsim_vif_priv);
+ hw->sta_data_size = sizeof(struct hwsim_sta_priv);
memcpy(data->channels, hwsim_channels, sizeof(hwsim_channels));
memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
data->band.n_channels = ARRAY_SIZE(hwsim_channels);
data->band.bitrates = data->rates;
data->band.n_bitrates = ARRAY_SIZE(hwsim_rates);
+ data->band.ht_info.ht_supported = 1;
+ data->band.ht_info.cap = IEEE80211_HT_CAP_SUP_WIDTH |
+ IEEE80211_HT_CAP_GRN_FLD |
+ IEEE80211_HT_CAP_SGI_40 |
+ IEEE80211_HT_CAP_DSSSCCK40;
+ data->band.ht_info.ampdu_factor = 0x3;
+ data->band.ht_info.ampdu_density = 0x6;
+ memset(data->band.ht_info.supp_mcs_set, 0,
+ sizeof(data->band.ht_info.supp_mcs_set));
+ data->band.ht_info.supp_mcs_set[0] = 0xff;
+ data->band.ht_info.supp_mcs_set[1] = 0xff;
+ data->band.ht_info.supp_mcs_set[12] =
+ IEEE80211_HT_CAP_MCS_TX_DEFINED;
hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &data->band;
err = ieee80211_register_hw(hw);
setup_timer(&data->beacon_timer, mac80211_hwsim_beacon,
(unsigned long) hw);
+
+ list_add_tail(&data->list, &hwsim_radios);
}
hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
device_unregister(data->dev);
failed_drvdata:
ieee80211_free_hw(hw);
- hwsim_radios[i] = NULL;
failed:
mac80211_hwsim_free();
return err;
static void __exit exit_mac80211_hwsim(void)
{
- printk(KERN_DEBUG "mac80211_hwsim: unregister %d radios\n",
- hwsim_radio_count);
+ printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
unregister_netdev(hwsim_mon);
mac80211_hwsim_free();
projects / linux-2.6-omap-h63xx.git / blobdiff