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Added support for AP mode Beacon transmission

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This commit is contained in:
Jouni Malinen 2008-06-10 20:46:12 +03:00
parent 561c0c4c3e
commit 1ef83fae63
1 changed files with 87 additions and 5 deletions
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92
mac80211_hwsim/mac80211_hwsim.c
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@ -10,7 +10,7 @@
/*
* TODO:
* - periodic Beacon transmission in AP mode
* - IBSS mode simulation (Beacon transmission with competion for "air time")
* - IBSS mode simulation (Beacon transmission with competition for "air time")
* - IEEE 802.11a and 802.11n modes
*/
@ -79,9 +79,10 @@ struct mac80211_hwsim_data {
int channel;
enum ieee80211_phymode phymode;
int radio_enabled;
int beacon_int;
unsigned long beacon_int; /* in jiffies unit */
unsigned int rx_filter;
int started;
struct timer_list beacon_timer;
};
@ -231,7 +232,10 @@ static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
struct ieee80211_if_init_conf *conf)
{
printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
DECLARE_MAC_BUF(mac);
printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%s)\n",
wiphy_name(hw->wiphy), __func__, conf->type,
print_mac(mac, conf->mac_addr));
return 0;
}
@ -239,7 +243,75 @@ static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
static void mac80211_hwsim_remove_interface(
struct ieee80211_hw *hw, struct ieee80211_if_init_conf *conf)
{
printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
DECLARE_MAC_BUF(mac);
printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%s)\n",
wiphy_name(hw->wiphy), __func__, conf->type,
print_mac(mac, conf->mac_addr));
}
static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
struct ieee80211_vif *vif)
{
struct ieee80211_hw *hw = arg;
struct mac80211_hwsim_data *data = hw->priv;
struct ieee80211_tx_control control;
struct sk_buff *skb;
struct ieee80211_rx_status rx_status;
int i;
if (vif->type != IEEE80211_IF_TYPE_AP)
return;
skb = ieee80211_beacon_get(hw, vif, &control);
if (skb == NULL)
return;
mac80211_hwsim_monitor_rx(data, skb, &control);
memset(&rx_status, 0, sizeof(rx_status));
/* TODO: set mactime */
rx_status.freq = data->freq;
rx_status.channel = data->channel;
rx_status.phymode = data->phymode;
rx_status.rate = control.tx_rate;
/* 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;
struct sk_buff *nskb;
if (hwsim_radios[i] == NULL || hwsim_radios[i] == hw)
continue;
data2 = hwsim_radios[i]->priv;
if (!data2->started || !data2->radio_enabled ||
data->freq != data2->freq)
continue;
nskb = skb_copy(skb, GFP_ATOMIC);
if (nskb == NULL)
continue;
ieee80211_rx_irqsafe(hwsim_radios[i], nskb, &rx_status);
}
dev_kfree_skb(skb);
}
static void mac80211_hwsim_beacon(unsigned long arg)
{
struct ieee80211_hw *hw = (struct ieee80211_hw *) arg;
struct mac80211_hwsim_data *data = hw->priv;
if (!data->started || !data->radio_enabled)
return;
ieee80211_iterate_active_interfaces(hw, mac80211_hwsim_beacon_tx, hw);
data->beacon_timer.expires = jiffies + data->beacon_int;
add_timer(&data->beacon_timer);
}
@ -256,7 +328,14 @@ static int mac80211_hwsim_config(struct ieee80211_hw *hw,
data->channel = conf->channel;
data->phymode = conf->phymode;
data->radio_enabled = conf->radio_enabled;
data->beacon_int = conf->beacon_int;
data->beacon_int = 1024 * conf->beacon_int / 1000 * HZ / 1000;
if (data->beacon_int < 1)
data->beacon_int = 1;
if (!data->started || !data->radio_enabled)
del_timer(&data->beacon_timer);
else
mod_timer(&data->beacon_timer, jiffies + data->beacon_int);
return 0;
}
@ -413,6 +492,9 @@ static int __init init_mac80211_hwsim(void)
printk(KERN_DEBUG "%s: hwaddr %s registered\n",
wiphy_name(hw->wiphy),
print_mac(mac, hw->wiphy->perm_addr));
setup_timer(&data->beacon_timer, mac80211_hwsim_beacon,
(unsigned long) hw);
}
hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);