#include <linux/if_arp.h>
#include <linux/rtnetlink.h>
#include <linux/etherdevice.h>
+#include <linux/debugfs.h>
MODULE_AUTHOR("Jouni Malinen");
MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
struct hwsim_vif_priv {
u32 magic;
+ u8 bssid[ETH_ALEN];
+ bool assoc;
+ u16 aid;
};
#define HWSIM_VIF_MAGIC 0x69537748
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);
+ WARN_ON(sp->magic != HWSIM_STA_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;
+ sp->magic = HWSIM_STA_MAGIC;
}
static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
unsigned int rx_filter;
int started;
struct timer_list beacon_timer;
+ enum ps_mode {
+ PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
+ } ps;
+ bool ps_poll_pending;
+ struct dentry *debugfs;
+ struct dentry *debugfs_ps;
};
}
+static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
+ struct sk_buff *skb)
+{
+ switch (data->ps) {
+ case PS_DISABLED:
+ return true;
+ case PS_ENABLED:
+ return false;
+ case PS_AUTO_POLL:
+ /* TODO: accept (some) Beacons by default and other frames only
+ * if pending PS-Poll has been sent */
+ return true;
+ case PS_MANUAL_POLL:
+ /* Allow unicast frames to own address if there is a pending
+ * PS-Poll */
+ if (data->ps_poll_pending &&
+ memcmp(data->hw->wiphy->perm_addr, skb->data + 4,
+ ETH_ALEN) == 0) {
+ data->ps_poll_pending = false;
+ return true;
+ }
+ return false;
+ }
+
+ return true;
+}
+
+
static bool mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
struct sk_buff *skb)
{
/* TODO: set mactime */
rx_status.freq = data->channel->center_freq;
rx_status.band = data->channel->band;
- rx_status.rate_idx = info->tx_rate_idx;
+ rx_status.rate_idx = info->control.rates[0].idx;
/* TODO: simulate signal strength (and optional packet drop) */
+ if (data->ps != PS_DISABLED)
+ hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
+
/* Copy skb to all enabled radios that are on the current frequency */
spin_lock(&hwsim_radio_lock);
list_for_each_entry(data2, &hwsim_radios, list) {
continue;
if (!data2->started || !data2->radio_enabled ||
+ !hwsim_ps_rx_ok(data2, skb) ||
data->channel->center_freq != data2->channel->center_freq)
continue;
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)
- txi->flags |= IEEE80211_TX_STAT_ACK;
- else
- txi->status.excessive_retries = 1;
- }
+ ieee80211_tx_info_clear_status(txi);
+ if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
+ txi->flags |= IEEE80211_TX_STAT_ACK;
ieee80211_tx_status_irqsafe(hw, skb);
return NETDEV_TX_OK;
}
{
struct mac80211_hwsim_data *data = hw->priv;
data->started = 0;
+ del_timer(&data->beacon_timer);
printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
}
static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
struct ieee80211_if_init_conf *conf)
{
- DECLARE_MAC_BUF(mac);
- printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%s)\n",
+ printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%pM)\n",
wiphy_name(hw->wiphy), __func__, conf->type,
- print_mac(mac, conf->mac_addr));
+ conf->mac_addr);
hwsim_set_magic(conf->vif);
return 0;
}
static void mac80211_hwsim_remove_interface(
struct ieee80211_hw *hw, struct ieee80211_if_init_conf *conf)
{
- DECLARE_MAC_BUF(mac);
- printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%s)\n",
+ printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%pM)\n",
wiphy_name(hw->wiphy), __func__, conf->type,
- print_mac(mac, conf->mac_addr));
+ conf->mac_addr);
hwsim_check_magic(conf->vif);
hwsim_clear_magic(conf->vif);
}
hwsim_check_magic(vif);
- if (vif->type != NL80211_IFTYPE_AP)
+ if (vif->type != NL80211_IFTYPE_AP &&
+ vif->type != NL80211_IFTYPE_MESH_POINT)
return;
skb = ieee80211_beacon_get(hw, vif);
}
-static int mac80211_hwsim_config(struct ieee80211_hw *hw,
- struct ieee80211_conf *conf)
+static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
{
struct mac80211_hwsim_data *data = hw->priv;
+ struct ieee80211_conf *conf = &hw->conf;
printk(KERN_DEBUG "%s:%s (freq=%d radio_enabled=%d beacon_int=%d)\n",
wiphy_name(hw->wiphy), __func__,
struct ieee80211_vif *vif,
struct ieee80211_if_conf *conf)
{
+ struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
+
hwsim_check_magic(vif);
+ if (conf->changed & IEEE80211_IFCC_BSSID) {
+ DECLARE_MAC_BUF(mac);
+ printk(KERN_DEBUG "%s:%s: BSSID changed: %pM\n",
+ wiphy_name(hw->wiphy), __func__,
+ conf->bssid);
+ memcpy(vp->bssid, conf->bssid, ETH_ALEN);
+ }
return 0;
}
struct ieee80211_bss_conf *info,
u32 changed)
{
+ struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
+
hwsim_check_magic(vif);
+
+ printk(KERN_DEBUG "%s:%s(changed=0x%x)\n",
+ wiphy_name(hw->wiphy), __func__, changed);
+
+ if (changed & BSS_CHANGED_ASSOC) {
+ printk(KERN_DEBUG " %s: ASSOC: assoc=%d aid=%d\n",
+ wiphy_name(hw->wiphy), info->assoc, info->aid);
+ vp->assoc = info->assoc;
+ vp->aid = info->aid;
+ }
+
+ if (changed & BSS_CHANGED_ERP_CTS_PROT) {
+ printk(KERN_DEBUG " %s: ERP_CTS_PROT: %d\n",
+ wiphy_name(hw->wiphy), info->use_cts_prot);
+ }
+
+ if (changed & BSS_CHANGED_ERP_PREAMBLE) {
+ printk(KERN_DEBUG " %s: ERP_PREAMBLE: %d\n",
+ wiphy_name(hw->wiphy), info->use_short_preamble);
+ }
+
+ if (changed & BSS_CHANGED_ERP_SLOT) {
+ printk(KERN_DEBUG " %s: ERP_SLOT: %d\n",
+ wiphy_name(hw->wiphy), info->use_short_slot);
+ }
+
+ if (changed & BSS_CHANGED_HT) {
+ printk(KERN_DEBUG " %s: HT: op_mode=0x%x\n",
+ wiphy_name(hw->wiphy),
+ info->ht.operation_mode);
+ }
+
+ if (changed & BSS_CHANGED_BASIC_RATES) {
+ printk(KERN_DEBUG " %s: BASIC_RATES: 0x%llx\n",
+ wiphy_name(hw->wiphy),
+ (unsigned long long) info->basic_rates);
+ }
}
static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
case STA_NOTIFY_REMOVE:
hwsim_clear_sta_magic(sta);
break;
+ case STA_NOTIFY_SLEEP:
+ case STA_NOTIFY_AWAKE:
+ /* TODO: make good use of these flags */
+ break;
}
}
return 0;
}
+static int mac80211_hwsim_conf_tx(
+ struct ieee80211_hw *hw, u16 queue,
+ const struct ieee80211_tx_queue_params *params)
+{
+ printk(KERN_DEBUG "%s:%s (queue=%d txop=%d cw_min=%d cw_max=%d "
+ "aifs=%d)\n",
+ wiphy_name(hw->wiphy), __func__, queue,
+ params->txop, params->cw_min, params->cw_max, params->aifs);
+ return 0;
+}
+
static const struct ieee80211_ops mac80211_hwsim_ops =
{
.tx = mac80211_hwsim_tx,
.bss_info_changed = mac80211_hwsim_bss_info_changed,
.sta_notify = mac80211_hwsim_sta_notify,
.set_tim = mac80211_hwsim_set_tim,
+ .conf_tx = mac80211_hwsim_conf_tx,
};
spin_unlock_bh(&hwsim_radio_lock);
list_for_each_entry(data, &tmplist, list) {
+ debugfs_remove(data->debugfs_ps);
+ debugfs_remove(data->debugfs);
ieee80211_unregister_hw(data->hw);
device_unregister(data->dev);
ieee80211_free_hw(data->hw);
}
+static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
+{
+ struct mac80211_hwsim_data *data = dat;
+ struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
+ DECLARE_MAC_BUF(buf);
+ struct sk_buff *skb;
+ struct ieee80211_pspoll *pspoll;
+
+ if (!vp->assoc)
+ return;
+
+ printk(KERN_DEBUG "%s:%s: send PS-Poll to %pM for aid %d\n",
+ wiphy_name(data->hw->wiphy), __func__, vp->bssid, vp->aid);
+
+ skb = dev_alloc_skb(sizeof(*pspoll));
+ if (!skb)
+ return;
+ pspoll = (void *) skb_put(skb, sizeof(*pspoll));
+ pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
+ IEEE80211_STYPE_PSPOLL |
+ IEEE80211_FCTL_PM);
+ pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
+ memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
+ memcpy(pspoll->ta, mac, ETH_ALEN);
+ if (data->radio_enabled &&
+ !mac80211_hwsim_tx_frame(data->hw, skb))
+ printk(KERN_DEBUG "%s: PS-Poll frame not ack'ed\n", __func__);
+ dev_kfree_skb(skb);
+}
+
+
+static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
+ struct ieee80211_vif *vif, int ps)
+{
+ struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
+ DECLARE_MAC_BUF(buf);
+ struct sk_buff *skb;
+ struct ieee80211_hdr *hdr;
+
+ if (!vp->assoc)
+ return;
+
+ printk(KERN_DEBUG "%s:%s: send data::nullfunc to %pM ps=%d\n",
+ wiphy_name(data->hw->wiphy), __func__, vp->bssid, ps);
+
+ skb = dev_alloc_skb(sizeof(*hdr));
+ if (!skb)
+ return;
+ hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
+ hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
+ IEEE80211_STYPE_NULLFUNC |
+ (ps ? IEEE80211_FCTL_PM : 0));
+ hdr->duration_id = cpu_to_le16(0);
+ memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
+ memcpy(hdr->addr2, mac, ETH_ALEN);
+ memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
+ if (data->radio_enabled &&
+ !mac80211_hwsim_tx_frame(data->hw, skb))
+ printk(KERN_DEBUG "%s: nullfunc frame not ack'ed\n", __func__);
+ dev_kfree_skb(skb);
+}
+
+
+static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
+ struct ieee80211_vif *vif)
+{
+ struct mac80211_hwsim_data *data = dat;
+ hwsim_send_nullfunc(data, mac, vif, 1);
+}
+
+
+static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
+ struct ieee80211_vif *vif)
+{
+ struct mac80211_hwsim_data *data = dat;
+ hwsim_send_nullfunc(data, mac, vif, 0);
+}
+
+
+static int hwsim_fops_ps_read(void *dat, u64 *val)
+{
+ struct mac80211_hwsim_data *data = dat;
+ *val = data->ps;
+ return 0;
+}
+
+static int hwsim_fops_ps_write(void *dat, u64 val)
+{
+ struct mac80211_hwsim_data *data = dat;
+ enum ps_mode old_ps;
+
+ if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
+ val != PS_MANUAL_POLL)
+ return -EINVAL;
+
+ old_ps = data->ps;
+ data->ps = val;
+
+ if (val == PS_MANUAL_POLL) {
+ ieee80211_iterate_active_interfaces(data->hw,
+ hwsim_send_ps_poll, data);
+ data->ps_poll_pending = true;
+ } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
+ ieee80211_iterate_active_interfaces(data->hw,
+ hwsim_send_nullfunc_ps,
+ data);
+ } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
+ ieee80211_iterate_active_interfaces(data->hw,
+ hwsim_send_nullfunc_no_ps,
+ data);
+ }
+
+ return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
+ "%llu\n");
+
+
static int __init init_mac80211_hwsim(void)
{
int i, err = 0;
u8 addr[ETH_ALEN];
struct mac80211_hwsim_data *data;
struct ieee80211_hw *hw;
- DECLARE_MAC_BUF(mac);
if (radios < 1 || radios > 100)
return -EINVAL;
data = hw->priv;
data->hw = hw;
- data->dev = device_create_drvdata(hwsim_class, NULL, 0, hw,
- "hwsim%d", i);
+ 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;
hw->queues = 4;
hw->wiphy->interface_modes =
BIT(NL80211_IFTYPE_STATION) |
- BIT(NL80211_IFTYPE_AP);
+ BIT(NL80211_IFTYPE_AP) |
+ BIT(NL80211_IFTYPE_MESH_POINT);
hw->ampdu_queues = 1;
/* ask mac80211 to reserve space for magic */
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 |
+ data->band.ht_cap.ht_supported = true;
+ data->band.ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
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;
+ data->band.ht_cap.ampdu_factor = 0x3;
+ data->band.ht_cap.ampdu_density = 0x6;
+ memset(&data->band.ht_cap.mcs, 0,
+ sizeof(data->band.ht_cap.mcs));
+ data->band.ht_cap.mcs.rx_mask[0] = 0xff;
+ data->band.ht_cap.mcs.rx_mask[1] = 0xff;
+ data->band.ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &data->band;
err = ieee80211_register_hw(hw);
goto failed_hw;
}
- printk(KERN_DEBUG "%s: hwaddr %s registered\n",
+ printk(KERN_DEBUG "%s: hwaddr %pM registered\n",
wiphy_name(hw->wiphy),
- print_mac(mac, hw->wiphy->perm_addr));
+ hw->wiphy->perm_addr);
+
+ data->debugfs = debugfs_create_dir("hwsim",
+ hw->wiphy->debugfsdir);
+ data->debugfs_ps = debugfs_create_file("ps", 0666,
+ data->debugfs, data,
+ &hwsim_fops_ps);
setup_timer(&data->beacon_timer, mac80211_hwsim_beacon,
(unsigned long) hw);
projects / linux-2.6-omap-h63xx.git / blobdiff