2 * mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211
3 * Copyright (c) 2008, Jouni Malinen <j@w1.fi>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
12 * - IBSS mode simulation (Beacon transmission with competition for "air time")
13 * - RX filtering based on filter configuration (data->rx_filter)
16 #include <linux/list.h>
17 #include <linux/slab.h>
18 #include <linux/spinlock.h>
21 #include <net/mac80211.h>
22 #include <net/ieee80211_radiotap.h>
23 #include <linux/if_arp.h>
24 #include <linux/rtnetlink.h>
25 #include <linux/etherdevice.h>
26 #include <linux/debugfs.h>
28 MODULE_AUTHOR("Jouni Malinen");
29 MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
30 MODULE_LICENSE("GPL");
32 static int radios = 2;
33 module_param(radios, int, 0444);
34 MODULE_PARM_DESC(radios, "Number of simulated radios");
36 static bool fake_hw_scan;
37 module_param(fake_hw_scan, bool, 0444);
38 MODULE_PARM_DESC(fake_hw_scan, "Install fake (no-op) hw-scan handler");
41 * enum hwsim_regtest - the type of regulatory tests we offer
43 * These are the different values you can use for the regtest
44 * module parameter. This is useful to help test world roaming
45 * and the driver regulatory_hint() call and combinations of these.
46 * If you want to do specific alpha2 regulatory domain tests simply
47 * use the userspace regulatory request as that will be respected as
48 * well without the need of this module parameter. This is designed
49 * only for testing the driver regulatory request, world roaming
50 * and all possible combinations.
52 * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
53 * this is the default value.
54 * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
55 * hint, only one driver regulatory hint will be sent as such the
56 * secondary radios are expected to follow.
57 * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
58 * request with all radios reporting the same regulatory domain.
59 * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
60 * different regulatory domains requests. Expected behaviour is for
61 * an intersection to occur but each device will still use their
62 * respective regulatory requested domains. Subsequent radios will
63 * use the resulting intersection.
64 * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We acomplish
65 * this by using a custom beacon-capable regulatory domain for the first
66 * radio. All other device world roam.
67 * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
68 * domain requests. All radios will adhere to this custom world regulatory
70 * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
71 * domain requests. The first radio will adhere to the first custom world
72 * regulatory domain, the second one to the second custom world regulatory
73 * domain. All other devices will world roam.
74 * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain
75 * settings, only the first radio will send a regulatory domain request
76 * and use strict settings. The rest of the radios are expected to follow.
77 * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
78 * settings. All radios will adhere to this.
79 * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
80 * domain settings, combined with secondary driver regulatory domain
81 * settings. The first radio will get a strict regulatory domain setting
82 * using the first driver regulatory request and the second radio will use
83 * non-strict settings using the second driver regulatory request. All
84 * other devices should follow the intersection created between the
86 * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
87 * at least 6 radios for a complete test. We will test in this order:
88 * 1 - driver custom world regulatory domain
89 * 2 - second custom world regulatory domain
90 * 3 - first driver regulatory domain request
91 * 4 - second driver regulatory domain request
92 * 5 - strict regulatory domain settings using the third driver regulatory
94 * 6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
95 * regulatory requests.
98 HWSIM_REGTEST_DISABLED = 0,
99 HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1,
100 HWSIM_REGTEST_DRIVER_REG_ALL = 2,
101 HWSIM_REGTEST_DIFF_COUNTRY = 3,
102 HWSIM_REGTEST_WORLD_ROAM = 4,
103 HWSIM_REGTEST_CUSTOM_WORLD = 5,
104 HWSIM_REGTEST_CUSTOM_WORLD_2 = 6,
105 HWSIM_REGTEST_STRICT_FOLLOW = 7,
106 HWSIM_REGTEST_STRICT_ALL = 8,
107 HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9,
108 HWSIM_REGTEST_ALL = 10,
111 /* Set to one of the HWSIM_REGTEST_* values above */
112 static int regtest = HWSIM_REGTEST_DISABLED;
113 module_param(regtest, int, 0444);
114 MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run");
116 static const char *hwsim_alpha2s[] = {
125 static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = {
129 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
130 REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
131 REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
132 REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
136 static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = {
140 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
141 REG_RULE(5725-10, 5850+10, 40, 0, 30,
142 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
146 struct hwsim_vif_priv {
153 #define HWSIM_VIF_MAGIC 0x69537748
155 static inline void hwsim_check_magic(struct ieee80211_vif *vif)
157 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
158 WARN_ON(vp->magic != HWSIM_VIF_MAGIC);
161 static inline void hwsim_set_magic(struct ieee80211_vif *vif)
163 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
164 vp->magic = HWSIM_VIF_MAGIC;
167 static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
169 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
173 struct hwsim_sta_priv {
177 #define HWSIM_STA_MAGIC 0x6d537748
179 static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
181 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
182 WARN_ON(sp->magic != HWSIM_STA_MAGIC);
185 static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
187 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
188 sp->magic = HWSIM_STA_MAGIC;
191 static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
193 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
197 static struct class *hwsim_class;
199 static struct net_device *hwsim_mon; /* global monitor netdev */
201 #define CHAN2G(_freq) { \
202 .band = IEEE80211_BAND_2GHZ, \
203 .center_freq = (_freq), \
204 .hw_value = (_freq), \
208 #define CHAN5G(_freq) { \
209 .band = IEEE80211_BAND_5GHZ, \
210 .center_freq = (_freq), \
211 .hw_value = (_freq), \
215 static const struct ieee80211_channel hwsim_channels_2ghz[] = {
216 CHAN2G(2412), /* Channel 1 */
217 CHAN2G(2417), /* Channel 2 */
218 CHAN2G(2422), /* Channel 3 */
219 CHAN2G(2427), /* Channel 4 */
220 CHAN2G(2432), /* Channel 5 */
221 CHAN2G(2437), /* Channel 6 */
222 CHAN2G(2442), /* Channel 7 */
223 CHAN2G(2447), /* Channel 8 */
224 CHAN2G(2452), /* Channel 9 */
225 CHAN2G(2457), /* Channel 10 */
226 CHAN2G(2462), /* Channel 11 */
227 CHAN2G(2467), /* Channel 12 */
228 CHAN2G(2472), /* Channel 13 */
229 CHAN2G(2484), /* Channel 14 */
232 static const struct ieee80211_channel hwsim_channels_5ghz[] = {
233 CHAN5G(5180), /* Channel 36 */
234 CHAN5G(5200), /* Channel 40 */
235 CHAN5G(5220), /* Channel 44 */
236 CHAN5G(5240), /* Channel 48 */
238 CHAN5G(5260), /* Channel 52 */
239 CHAN5G(5280), /* Channel 56 */
240 CHAN5G(5300), /* Channel 60 */
241 CHAN5G(5320), /* Channel 64 */
243 CHAN5G(5500), /* Channel 100 */
244 CHAN5G(5520), /* Channel 104 */
245 CHAN5G(5540), /* Channel 108 */
246 CHAN5G(5560), /* Channel 112 */
247 CHAN5G(5580), /* Channel 116 */
248 CHAN5G(5600), /* Channel 120 */
249 CHAN5G(5620), /* Channel 124 */
250 CHAN5G(5640), /* Channel 128 */
251 CHAN5G(5660), /* Channel 132 */
252 CHAN5G(5680), /* Channel 136 */
253 CHAN5G(5700), /* Channel 140 */
255 CHAN5G(5745), /* Channel 149 */
256 CHAN5G(5765), /* Channel 153 */
257 CHAN5G(5785), /* Channel 157 */
258 CHAN5G(5805), /* Channel 161 */
259 CHAN5G(5825), /* Channel 165 */
262 static const struct ieee80211_rate hwsim_rates[] = {
264 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
265 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
266 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
277 static spinlock_t hwsim_radio_lock;
278 static struct list_head hwsim_radios;
280 struct mac80211_hwsim_data {
281 struct list_head list;
282 struct ieee80211_hw *hw;
284 struct ieee80211_supported_band bands[2];
285 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
286 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
287 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
289 struct mac_address addresses[2];
291 struct ieee80211_channel *channel;
292 unsigned long beacon_int; /* in jiffies unit */
293 unsigned int rx_filter;
295 struct timer_list beacon_timer;
297 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
299 bool ps_poll_pending;
300 struct dentry *debugfs;
301 struct dentry *debugfs_ps;
304 * Only radios in the same group can communicate together (the
305 * channel has to match too). Each bit represents a group. A
306 * radio can be in more then one group.
309 struct dentry *debugfs_group;
313 struct hwsim_radiotap_hdr {
314 struct ieee80211_radiotap_header hdr;
319 } __attribute__ ((packed));
322 static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
323 struct net_device *dev)
325 /* TODO: allow packet injection */
331 static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
332 struct sk_buff *tx_skb)
334 struct mac80211_hwsim_data *data = hw->priv;
336 struct hwsim_radiotap_hdr *hdr;
338 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
339 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
341 if (!netif_running(hwsim_mon))
344 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
348 hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
349 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
351 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
352 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
353 (1 << IEEE80211_RADIOTAP_RATE) |
354 (1 << IEEE80211_RADIOTAP_CHANNEL));
356 hdr->rt_rate = txrate->bitrate / 5;
357 hdr->rt_channel = cpu_to_le16(data->channel->center_freq);
358 flags = IEEE80211_CHAN_2GHZ;
359 if (txrate->flags & IEEE80211_RATE_ERP_G)
360 flags |= IEEE80211_CHAN_OFDM;
362 flags |= IEEE80211_CHAN_CCK;
363 hdr->rt_chbitmask = cpu_to_le16(flags);
365 skb->dev = hwsim_mon;
366 skb_set_mac_header(skb, 0);
367 skb->ip_summed = CHECKSUM_UNNECESSARY;
368 skb->pkt_type = PACKET_OTHERHOST;
369 skb->protocol = htons(ETH_P_802_2);
370 memset(skb->cb, 0, sizeof(skb->cb));
375 static void mac80211_hwsim_monitor_ack(struct ieee80211_hw *hw, const u8 *addr)
377 struct mac80211_hwsim_data *data = hw->priv;
379 struct hwsim_radiotap_hdr *hdr;
381 struct ieee80211_hdr *hdr11;
383 if (!netif_running(hwsim_mon))
386 skb = dev_alloc_skb(100);
390 hdr = (struct hwsim_radiotap_hdr *) skb_put(skb, sizeof(*hdr));
391 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
393 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
394 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
395 (1 << IEEE80211_RADIOTAP_CHANNEL));
398 hdr->rt_channel = cpu_to_le16(data->channel->center_freq);
399 flags = IEEE80211_CHAN_2GHZ;
400 hdr->rt_chbitmask = cpu_to_le16(flags);
402 hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
403 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
404 IEEE80211_STYPE_ACK);
405 hdr11->duration_id = cpu_to_le16(0);
406 memcpy(hdr11->addr1, addr, ETH_ALEN);
408 skb->dev = hwsim_mon;
409 skb_set_mac_header(skb, 0);
410 skb->ip_summed = CHECKSUM_UNNECESSARY;
411 skb->pkt_type = PACKET_OTHERHOST;
412 skb->protocol = htons(ETH_P_802_2);
413 memset(skb->cb, 0, sizeof(skb->cb));
418 static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
427 /* TODO: accept (some) Beacons by default and other frames only
428 * if pending PS-Poll has been sent */
431 /* Allow unicast frames to own address if there is a pending
433 if (data->ps_poll_pending &&
434 memcmp(data->hw->wiphy->perm_addr, skb->data + 4,
436 data->ps_poll_pending = false;
446 struct mac80211_hwsim_addr_match_data {
451 static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
452 struct ieee80211_vif *vif)
454 struct mac80211_hwsim_addr_match_data *md = data;
455 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
460 static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
463 struct mac80211_hwsim_addr_match_data md;
465 if (memcmp(addr, data->hw->wiphy->perm_addr, ETH_ALEN) == 0)
470 ieee80211_iterate_active_interfaces_atomic(data->hw,
471 mac80211_hwsim_addr_iter,
478 static bool mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
481 struct mac80211_hwsim_data *data = hw->priv, *data2;
483 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
484 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
485 struct ieee80211_rx_status rx_status;
488 printk(KERN_DEBUG "%s: Trying to TX when idle - reject\n",
489 wiphy_name(hw->wiphy));
493 memset(&rx_status, 0, sizeof(rx_status));
494 /* TODO: set mactime */
495 rx_status.freq = data->channel->center_freq;
496 rx_status.band = data->channel->band;
497 rx_status.rate_idx = info->control.rates[0].idx;
498 /* TODO: simulate real signal strength (and optional packet loss) */
499 rx_status.signal = -50;
501 if (data->ps != PS_DISABLED)
502 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
504 /* release the skb's source info */
511 /* Copy skb to all enabled radios that are on the current frequency */
512 spin_lock(&hwsim_radio_lock);
513 list_for_each_entry(data2, &hwsim_radios, list) {
514 struct sk_buff *nskb;
519 if (data2->idle || !data2->started ||
520 !hwsim_ps_rx_ok(data2, skb) ||
521 !data->channel || !data2->channel ||
522 data->channel->center_freq != data2->channel->center_freq ||
523 !(data->group & data2->group))
526 nskb = skb_copy(skb, GFP_ATOMIC);
530 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
532 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
533 ieee80211_rx_irqsafe(data2->hw, nskb);
535 spin_unlock(&hwsim_radio_lock);
541 static int mac80211_hwsim_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
544 struct ieee80211_tx_info *txi;
546 mac80211_hwsim_monitor_rx(hw, skb);
549 /* Should not happen; just a sanity check for addr1 use */
554 ack = mac80211_hwsim_tx_frame(hw, skb);
555 if (ack && skb->len >= 16) {
556 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
557 mac80211_hwsim_monitor_ack(hw, hdr->addr2);
560 txi = IEEE80211_SKB_CB(skb);
562 if (txi->control.vif)
563 hwsim_check_magic(txi->control.vif);
564 if (txi->control.sta)
565 hwsim_check_sta_magic(txi->control.sta);
567 ieee80211_tx_info_clear_status(txi);
568 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
569 txi->flags |= IEEE80211_TX_STAT_ACK;
570 ieee80211_tx_status_irqsafe(hw, skb);
575 static int mac80211_hwsim_start(struct ieee80211_hw *hw)
577 struct mac80211_hwsim_data *data = hw->priv;
578 printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
584 static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
586 struct mac80211_hwsim_data *data = hw->priv;
588 del_timer(&data->beacon_timer);
589 printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
593 static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
594 struct ieee80211_vif *vif)
596 printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%pM)\n",
597 wiphy_name(hw->wiphy), __func__, vif->type,
599 hwsim_set_magic(vif);
604 static void mac80211_hwsim_remove_interface(
605 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
607 printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%pM)\n",
608 wiphy_name(hw->wiphy), __func__, vif->type,
610 hwsim_check_magic(vif);
611 hwsim_clear_magic(vif);
615 static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
616 struct ieee80211_vif *vif)
618 struct ieee80211_hw *hw = arg;
620 struct ieee80211_tx_info *info;
622 hwsim_check_magic(vif);
624 if (vif->type != NL80211_IFTYPE_AP &&
625 vif->type != NL80211_IFTYPE_MESH_POINT)
628 skb = ieee80211_beacon_get(hw, vif);
631 info = IEEE80211_SKB_CB(skb);
633 mac80211_hwsim_monitor_rx(hw, skb);
634 mac80211_hwsim_tx_frame(hw, skb);
639 static void mac80211_hwsim_beacon(unsigned long arg)
641 struct ieee80211_hw *hw = (struct ieee80211_hw *) arg;
642 struct mac80211_hwsim_data *data = hw->priv;
647 ieee80211_iterate_active_interfaces_atomic(
648 hw, mac80211_hwsim_beacon_tx, hw);
650 data->beacon_timer.expires = jiffies + data->beacon_int;
651 add_timer(&data->beacon_timer);
655 static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
657 struct mac80211_hwsim_data *data = hw->priv;
658 struct ieee80211_conf *conf = &hw->conf;
659 static const char *chantypes[4] = {
660 [NL80211_CHAN_NO_HT] = "noht",
661 [NL80211_CHAN_HT20] = "ht20",
662 [NL80211_CHAN_HT40MINUS] = "ht40-",
663 [NL80211_CHAN_HT40PLUS] = "ht40+",
665 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
666 [IEEE80211_SMPS_AUTOMATIC] = "auto",
667 [IEEE80211_SMPS_OFF] = "off",
668 [IEEE80211_SMPS_STATIC] = "static",
669 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
672 printk(KERN_DEBUG "%s:%s (freq=%d/%s idle=%d ps=%d smps=%s)\n",
673 wiphy_name(hw->wiphy), __func__,
674 conf->channel->center_freq,
675 chantypes[conf->channel_type],
676 !!(conf->flags & IEEE80211_CONF_IDLE),
677 !!(conf->flags & IEEE80211_CONF_PS),
678 smps_modes[conf->smps_mode]);
680 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
682 data->channel = conf->channel;
683 if (!data->started || !data->beacon_int)
684 del_timer(&data->beacon_timer);
686 mod_timer(&data->beacon_timer, jiffies + data->beacon_int);
692 static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
693 unsigned int changed_flags,
694 unsigned int *total_flags,u64 multicast)
696 struct mac80211_hwsim_data *data = hw->priv;
698 printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
701 if (*total_flags & FIF_PROMISC_IN_BSS)
702 data->rx_filter |= FIF_PROMISC_IN_BSS;
703 if (*total_flags & FIF_ALLMULTI)
704 data->rx_filter |= FIF_ALLMULTI;
706 *total_flags = data->rx_filter;
709 static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
710 struct ieee80211_vif *vif,
711 struct ieee80211_bss_conf *info,
714 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
715 struct mac80211_hwsim_data *data = hw->priv;
717 hwsim_check_magic(vif);
719 printk(KERN_DEBUG "%s:%s(changed=0x%x)\n",
720 wiphy_name(hw->wiphy), __func__, changed);
722 if (changed & BSS_CHANGED_BSSID) {
723 printk(KERN_DEBUG "%s:%s: BSSID changed: %pM\n",
724 wiphy_name(hw->wiphy), __func__,
726 memcpy(vp->bssid, info->bssid, ETH_ALEN);
729 if (changed & BSS_CHANGED_ASSOC) {
730 printk(KERN_DEBUG " %s: ASSOC: assoc=%d aid=%d\n",
731 wiphy_name(hw->wiphy), info->assoc, info->aid);
732 vp->assoc = info->assoc;
736 if (changed & BSS_CHANGED_BEACON_INT) {
737 printk(KERN_DEBUG " %s: BCNINT: %d\n",
738 wiphy_name(hw->wiphy), info->beacon_int);
739 data->beacon_int = 1024 * info->beacon_int / 1000 * HZ / 1000;
740 if (WARN_ON(!data->beacon_int))
741 data->beacon_int = 1;
743 mod_timer(&data->beacon_timer,
744 jiffies + data->beacon_int);
747 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
748 printk(KERN_DEBUG " %s: ERP_CTS_PROT: %d\n",
749 wiphy_name(hw->wiphy), info->use_cts_prot);
752 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
753 printk(KERN_DEBUG " %s: ERP_PREAMBLE: %d\n",
754 wiphy_name(hw->wiphy), info->use_short_preamble);
757 if (changed & BSS_CHANGED_ERP_SLOT) {
758 printk(KERN_DEBUG " %s: ERP_SLOT: %d\n",
759 wiphy_name(hw->wiphy), info->use_short_slot);
762 if (changed & BSS_CHANGED_HT) {
763 printk(KERN_DEBUG " %s: HT: op_mode=0x%x\n",
764 wiphy_name(hw->wiphy),
765 info->ht_operation_mode);
768 if (changed & BSS_CHANGED_BASIC_RATES) {
769 printk(KERN_DEBUG " %s: BASIC_RATES: 0x%llx\n",
770 wiphy_name(hw->wiphy),
771 (unsigned long long) info->basic_rates);
775 static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
776 struct ieee80211_vif *vif,
777 struct ieee80211_sta *sta)
779 hwsim_check_magic(vif);
780 hwsim_set_sta_magic(sta);
785 static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
786 struct ieee80211_vif *vif,
787 struct ieee80211_sta *sta)
789 hwsim_check_magic(vif);
790 hwsim_clear_sta_magic(sta);
795 static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
796 struct ieee80211_vif *vif,
797 enum sta_notify_cmd cmd,
798 struct ieee80211_sta *sta)
800 hwsim_check_magic(vif);
803 case STA_NOTIFY_SLEEP:
804 case STA_NOTIFY_AWAKE:
805 /* TODO: make good use of these flags */
808 WARN(1, "Invalid sta notify: %d\n", cmd);
813 static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
814 struct ieee80211_sta *sta,
817 hwsim_check_sta_magic(sta);
821 static int mac80211_hwsim_conf_tx(
822 struct ieee80211_hw *hw, u16 queue,
823 const struct ieee80211_tx_queue_params *params)
825 printk(KERN_DEBUG "%s:%s (queue=%d txop=%d cw_min=%d cw_max=%d "
827 wiphy_name(hw->wiphy), __func__, queue,
828 params->txop, params->cw_min, params->cw_max, params->aifs);
832 #ifdef CONFIG_NL80211_TESTMODE
834 * This section contains example code for using netlink
835 * attributes with the testmode command in nl80211.
838 /* These enums need to be kept in sync with userspace */
839 enum hwsim_testmode_attr {
840 __HWSIM_TM_ATTR_INVALID = 0,
841 HWSIM_TM_ATTR_CMD = 1,
842 HWSIM_TM_ATTR_PS = 2,
845 __HWSIM_TM_ATTR_AFTER_LAST,
846 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
849 enum hwsim_testmode_cmd {
850 HWSIM_TM_CMD_SET_PS = 0,
851 HWSIM_TM_CMD_GET_PS = 1,
854 static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
855 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
856 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
859 static int hwsim_fops_ps_write(void *dat, u64 val);
861 static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
864 struct mac80211_hwsim_data *hwsim = hw->priv;
865 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
869 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
870 hwsim_testmode_policy);
874 if (!tb[HWSIM_TM_ATTR_CMD])
877 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
878 case HWSIM_TM_CMD_SET_PS:
879 if (!tb[HWSIM_TM_ATTR_PS])
881 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
882 return hwsim_fops_ps_write(hwsim, ps);
883 case HWSIM_TM_CMD_GET_PS:
884 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
885 nla_total_size(sizeof(u32)));
888 NLA_PUT_U32(skb, HWSIM_TM_ATTR_PS, hwsim->ps);
889 return cfg80211_testmode_reply(skb);
900 static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
901 struct ieee80211_vif *vif,
902 enum ieee80211_ampdu_mlme_action action,
903 struct ieee80211_sta *sta, u16 tid, u16 *ssn)
906 case IEEE80211_AMPDU_TX_START:
907 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
909 case IEEE80211_AMPDU_TX_STOP:
910 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
912 case IEEE80211_AMPDU_TX_OPERATIONAL:
914 case IEEE80211_AMPDU_RX_START:
915 case IEEE80211_AMPDU_RX_STOP:
924 static void mac80211_hwsim_flush(struct ieee80211_hw *hw, bool drop)
927 * In this special case, there's nothing we need to
928 * do because hwsim does transmission synchronously.
929 * In the future, when it does transmissions via
930 * userspace, we may need to do something.
934 struct hw_scan_done {
935 struct delayed_work w;
936 struct ieee80211_hw *hw;
939 static void hw_scan_done(struct work_struct *work)
941 struct hw_scan_done *hsd =
942 container_of(work, struct hw_scan_done, w.work);
944 ieee80211_scan_completed(hsd->hw, false);
948 static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
949 struct cfg80211_scan_request *req)
951 struct hw_scan_done *hsd = kzalloc(sizeof(*hsd), GFP_KERNEL);
958 INIT_DELAYED_WORK(&hsd->w, hw_scan_done);
960 printk(KERN_DEBUG "hwsim scan request\n");
961 for (i = 0; i < req->n_channels; i++)
962 printk(KERN_DEBUG "hwsim scan freq %d\n",
963 req->channels[i]->center_freq);
965 ieee80211_queue_delayed_work(hw, &hsd->w, 2 * HZ);
970 static struct ieee80211_ops mac80211_hwsim_ops =
972 .tx = mac80211_hwsim_tx,
973 .start = mac80211_hwsim_start,
974 .stop = mac80211_hwsim_stop,
975 .add_interface = mac80211_hwsim_add_interface,
976 .remove_interface = mac80211_hwsim_remove_interface,
977 .config = mac80211_hwsim_config,
978 .configure_filter = mac80211_hwsim_configure_filter,
979 .bss_info_changed = mac80211_hwsim_bss_info_changed,
980 .sta_add = mac80211_hwsim_sta_add,
981 .sta_remove = mac80211_hwsim_sta_remove,
982 .sta_notify = mac80211_hwsim_sta_notify,
983 .set_tim = mac80211_hwsim_set_tim,
984 .conf_tx = mac80211_hwsim_conf_tx,
985 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
986 .ampdu_action = mac80211_hwsim_ampdu_action,
987 .flush = mac80211_hwsim_flush,
991 static void mac80211_hwsim_free(void)
993 struct list_head tmplist, *i, *tmp;
994 struct mac80211_hwsim_data *data, *tmpdata;
996 INIT_LIST_HEAD(&tmplist);
998 spin_lock_bh(&hwsim_radio_lock);
999 list_for_each_safe(i, tmp, &hwsim_radios)
1000 list_move(i, &tmplist);
1001 spin_unlock_bh(&hwsim_radio_lock);
1003 list_for_each_entry_safe(data, tmpdata, &tmplist, list) {
1004 debugfs_remove(data->debugfs_group);
1005 debugfs_remove(data->debugfs_ps);
1006 debugfs_remove(data->debugfs);
1007 ieee80211_unregister_hw(data->hw);
1008 device_unregister(data->dev);
1009 ieee80211_free_hw(data->hw);
1011 class_destroy(hwsim_class);
1015 static struct device_driver mac80211_hwsim_driver = {
1016 .name = "mac80211_hwsim"
1019 static const struct net_device_ops hwsim_netdev_ops = {
1020 .ndo_start_xmit = hwsim_mon_xmit,
1021 .ndo_change_mtu = eth_change_mtu,
1022 .ndo_set_mac_address = eth_mac_addr,
1023 .ndo_validate_addr = eth_validate_addr,
1026 static void hwsim_mon_setup(struct net_device *dev)
1028 dev->netdev_ops = &hwsim_netdev_ops;
1029 dev->destructor = free_netdev;
1031 dev->tx_queue_len = 0;
1032 dev->type = ARPHRD_IEEE80211_RADIOTAP;
1033 memset(dev->dev_addr, 0, ETH_ALEN);
1034 dev->dev_addr[0] = 0x12;
1038 static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
1040 struct mac80211_hwsim_data *data = dat;
1041 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1042 struct sk_buff *skb;
1043 struct ieee80211_pspoll *pspoll;
1048 printk(KERN_DEBUG "%s:%s: send PS-Poll to %pM for aid %d\n",
1049 wiphy_name(data->hw->wiphy), __func__, vp->bssid, vp->aid);
1051 skb = dev_alloc_skb(sizeof(*pspoll));
1054 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
1055 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
1056 IEEE80211_STYPE_PSPOLL |
1058 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
1059 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
1060 memcpy(pspoll->ta, mac, ETH_ALEN);
1061 if (!mac80211_hwsim_tx_frame(data->hw, skb))
1062 printk(KERN_DEBUG "%s: PS-Poll frame not ack'ed\n", __func__);
1067 static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
1068 struct ieee80211_vif *vif, int ps)
1070 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1071 struct sk_buff *skb;
1072 struct ieee80211_hdr *hdr;
1077 printk(KERN_DEBUG "%s:%s: send data::nullfunc to %pM ps=%d\n",
1078 wiphy_name(data->hw->wiphy), __func__, vp->bssid, ps);
1080 skb = dev_alloc_skb(sizeof(*hdr));
1083 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
1084 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1085 IEEE80211_STYPE_NULLFUNC |
1086 (ps ? IEEE80211_FCTL_PM : 0));
1087 hdr->duration_id = cpu_to_le16(0);
1088 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
1089 memcpy(hdr->addr2, mac, ETH_ALEN);
1090 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
1091 if (!mac80211_hwsim_tx_frame(data->hw, skb))
1092 printk(KERN_DEBUG "%s: nullfunc frame not ack'ed\n", __func__);
1097 static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
1098 struct ieee80211_vif *vif)
1100 struct mac80211_hwsim_data *data = dat;
1101 hwsim_send_nullfunc(data, mac, vif, 1);
1105 static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
1106 struct ieee80211_vif *vif)
1108 struct mac80211_hwsim_data *data = dat;
1109 hwsim_send_nullfunc(data, mac, vif, 0);
1113 static int hwsim_fops_ps_read(void *dat, u64 *val)
1115 struct mac80211_hwsim_data *data = dat;
1120 static int hwsim_fops_ps_write(void *dat, u64 val)
1122 struct mac80211_hwsim_data *data = dat;
1123 enum ps_mode old_ps;
1125 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
1126 val != PS_MANUAL_POLL)
1132 if (val == PS_MANUAL_POLL) {
1133 ieee80211_iterate_active_interfaces(data->hw,
1134 hwsim_send_ps_poll, data);
1135 data->ps_poll_pending = true;
1136 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
1137 ieee80211_iterate_active_interfaces(data->hw,
1138 hwsim_send_nullfunc_ps,
1140 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
1141 ieee80211_iterate_active_interfaces(data->hw,
1142 hwsim_send_nullfunc_no_ps,
1149 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
1153 static int hwsim_fops_group_read(void *dat, u64 *val)
1155 struct mac80211_hwsim_data *data = dat;
1160 static int hwsim_fops_group_write(void *dat, u64 val)
1162 struct mac80211_hwsim_data *data = dat;
1167 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
1168 hwsim_fops_group_read, hwsim_fops_group_write,
1171 static int __init init_mac80211_hwsim(void)
1175 struct mac80211_hwsim_data *data;
1176 struct ieee80211_hw *hw;
1177 enum ieee80211_band band;
1179 if (radios < 1 || radios > 100)
1183 mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan;
1185 spin_lock_init(&hwsim_radio_lock);
1186 INIT_LIST_HEAD(&hwsim_radios);
1188 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
1189 if (IS_ERR(hwsim_class))
1190 return PTR_ERR(hwsim_class);
1192 memset(addr, 0, ETH_ALEN);
1195 for (i = 0; i < radios; i++) {
1196 printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
1198 hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);
1200 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
1208 data->dev = device_create(hwsim_class, NULL, 0, hw,
1210 if (IS_ERR(data->dev)) {
1212 "mac80211_hwsim: device_create "
1213 "failed (%ld)\n", PTR_ERR(data->dev));
1215 goto failed_drvdata;
1217 data->dev->driver = &mac80211_hwsim_driver;
1219 SET_IEEE80211_DEV(hw, data->dev);
1222 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
1223 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
1224 data->addresses[1].addr[0] |= 0x40;
1225 hw->wiphy->n_addresses = 2;
1226 hw->wiphy->addresses = data->addresses;
1228 hw->channel_change_time = 1;
1230 hw->wiphy->interface_modes =
1231 BIT(NL80211_IFTYPE_STATION) |
1232 BIT(NL80211_IFTYPE_AP) |
1233 BIT(NL80211_IFTYPE_MESH_POINT);
1235 hw->flags = IEEE80211_HW_MFP_CAPABLE |
1236 IEEE80211_HW_SIGNAL_DBM |
1237 IEEE80211_HW_SUPPORTS_STATIC_SMPS |
1238 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS;
1240 /* ask mac80211 to reserve space for magic */
1241 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
1242 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
1244 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
1245 sizeof(hwsim_channels_2ghz));
1246 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
1247 sizeof(hwsim_channels_5ghz));
1248 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
1250 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
1251 struct ieee80211_supported_band *sband = &data->bands[band];
1253 case IEEE80211_BAND_2GHZ:
1254 sband->channels = data->channels_2ghz;
1256 ARRAY_SIZE(hwsim_channels_2ghz);
1257 sband->bitrates = data->rates;
1258 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
1260 case IEEE80211_BAND_5GHZ:
1261 sband->channels = data->channels_5ghz;
1263 ARRAY_SIZE(hwsim_channels_5ghz);
1264 sband->bitrates = data->rates + 4;
1265 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
1271 sband->ht_cap.ht_supported = true;
1272 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
1273 IEEE80211_HT_CAP_GRN_FLD |
1274 IEEE80211_HT_CAP_SGI_40 |
1275 IEEE80211_HT_CAP_DSSSCCK40;
1276 sband->ht_cap.ampdu_factor = 0x3;
1277 sband->ht_cap.ampdu_density = 0x6;
1278 memset(&sband->ht_cap.mcs, 0,
1279 sizeof(sband->ht_cap.mcs));
1280 sband->ht_cap.mcs.rx_mask[0] = 0xff;
1281 sband->ht_cap.mcs.rx_mask[1] = 0xff;
1282 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1284 hw->wiphy->bands[band] = sband;
1286 /* By default all radios are belonging to the first group */
1289 /* Work to be done prior to ieee80211_register_hw() */
1291 case HWSIM_REGTEST_DISABLED:
1292 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
1293 case HWSIM_REGTEST_DRIVER_REG_ALL:
1294 case HWSIM_REGTEST_DIFF_COUNTRY:
1296 * Nothing to be done for driver regulatory domain
1297 * hints prior to ieee80211_register_hw()
1300 case HWSIM_REGTEST_WORLD_ROAM:
1302 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1303 wiphy_apply_custom_regulatory(hw->wiphy,
1304 &hwsim_world_regdom_custom_01);
1307 case HWSIM_REGTEST_CUSTOM_WORLD:
1308 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1309 wiphy_apply_custom_regulatory(hw->wiphy,
1310 &hwsim_world_regdom_custom_01);
1312 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1314 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1315 wiphy_apply_custom_regulatory(hw->wiphy,
1316 &hwsim_world_regdom_custom_01);
1317 } else if (i == 1) {
1318 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1319 wiphy_apply_custom_regulatory(hw->wiphy,
1320 &hwsim_world_regdom_custom_02);
1323 case HWSIM_REGTEST_STRICT_ALL:
1324 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
1326 case HWSIM_REGTEST_STRICT_FOLLOW:
1327 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1329 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
1331 case HWSIM_REGTEST_ALL:
1333 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1334 wiphy_apply_custom_regulatory(hw->wiphy,
1335 &hwsim_world_regdom_custom_01);
1336 } else if (i == 1) {
1337 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1338 wiphy_apply_custom_regulatory(hw->wiphy,
1339 &hwsim_world_regdom_custom_02);
1341 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
1347 /* give the regulatory workqueue a chance to run */
1349 schedule_timeout_interruptible(1);
1350 err = ieee80211_register_hw(hw);
1352 printk(KERN_DEBUG "mac80211_hwsim: "
1353 "ieee80211_register_hw failed (%d)\n", err);
1357 /* Work to be done after to ieee80211_register_hw() */
1359 case HWSIM_REGTEST_WORLD_ROAM:
1360 case HWSIM_REGTEST_DISABLED:
1362 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
1364 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1366 case HWSIM_REGTEST_DRIVER_REG_ALL:
1367 case HWSIM_REGTEST_STRICT_ALL:
1368 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1370 case HWSIM_REGTEST_DIFF_COUNTRY:
1371 if (i < ARRAY_SIZE(hwsim_alpha2s))
1372 regulatory_hint(hw->wiphy, hwsim_alpha2s[i]);
1374 case HWSIM_REGTEST_CUSTOM_WORLD:
1375 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1377 * Nothing to be done for custom world regulatory
1378 * domains after to ieee80211_register_hw
1381 case HWSIM_REGTEST_STRICT_FOLLOW:
1383 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1385 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1387 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1389 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1391 case HWSIM_REGTEST_ALL:
1393 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1395 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1397 regulatory_hint(hw->wiphy, hwsim_alpha2s[2]);
1403 printk(KERN_DEBUG "%s: hwaddr %pM registered\n",
1404 wiphy_name(hw->wiphy),
1405 hw->wiphy->perm_addr);
1407 data->debugfs = debugfs_create_dir("hwsim",
1408 hw->wiphy->debugfsdir);
1409 data->debugfs_ps = debugfs_create_file("ps", 0666,
1410 data->debugfs, data,
1412 data->debugfs_group = debugfs_create_file("group", 0666,
1413 data->debugfs, data,
1416 setup_timer(&data->beacon_timer, mac80211_hwsim_beacon,
1417 (unsigned long) hw);
1419 list_add_tail(&data->list, &hwsim_radios);
1422 hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
1423 if (hwsim_mon == NULL)
1428 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
1433 err = register_netdevice(hwsim_mon);
1443 free_netdev(hwsim_mon);
1444 mac80211_hwsim_free();
1448 device_unregister(data->dev);
1450 ieee80211_free_hw(hw);
1452 mac80211_hwsim_free();
1457 static void __exit exit_mac80211_hwsim(void)
1459 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
1461 mac80211_hwsim_free();
1462 unregister_netdev(hwsim_mon);
1466 module_init(init_mac80211_hwsim);
1467 module_exit(exit_mac80211_hwsim);