wireless: remove print_mac uses
[linux-2.6.git] / drivers / net / wireless / mac80211_hwsim.c
1 /*
2  * mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211
3  * Copyright (c) 2008, Jouni Malinen <j@w1.fi>
4  *
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.
8  */
9
10 /*
11  * TODO:
12  * - IBSS mode simulation (Beacon transmission with competition for "air time")
13  * - RX filtering based on filter configuration (data->rx_filter)
14  */
15
16 #include <linux/list.h>
17 #include <linux/spinlock.h>
18 #include <net/dst.h>
19 #include <net/xfrm.h>
20 #include <net/mac80211.h>
21 #include <net/ieee80211_radiotap.h>
22 #include <linux/if_arp.h>
23 #include <linux/rtnetlink.h>
24 #include <linux/etherdevice.h>
25 #include <linux/debugfs.h>
26
27 MODULE_AUTHOR("Jouni Malinen");
28 MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
29 MODULE_LICENSE("GPL");
30
31 static int radios = 2;
32 module_param(radios, int, 0444);
33 MODULE_PARM_DESC(radios, "Number of simulated radios");
34
35 /**
36  * enum hwsim_regtest - the type of regulatory tests we offer
37  *
38  * These are the different values you can use for the regtest
39  * module parameter. This is useful to help test world roaming
40  * and the driver regulatory_hint() call and combinations of these.
41  * If you want to do specific alpha2 regulatory domain tests simply
42  * use the userspace regulatory request as that will be respected as
43  * well without the need of this module parameter. This is designed
44  * only for testing the driver regulatory request, world roaming
45  * and all possible combinations.
46  *
47  * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
48  *      this is the default value.
49  * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
50  *      hint, only one driver regulatory hint will be sent as such the
51  *      secondary radios are expected to follow.
52  * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
53  *      request with all radios reporting the same regulatory domain.
54  * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
55  *      different regulatory domains requests. Expected behaviour is for
56  *      an intersection to occur but each device will still use their
57  *      respective regulatory requested domains. Subsequent radios will
58  *      use the resulting intersection.
59  * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We acomplish
60  *      this by using a custom beacon-capable regulatory domain for the first
61  *      radio. All other device world roam.
62  * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
63  *      domain requests. All radios will adhere to this custom world regulatory
64  *      domain.
65  * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
66  *      domain requests. The first radio will adhere to the first custom world
67  *      regulatory domain, the second one to the second custom world regulatory
68  *      domain. All other devices will world roam.
69  * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain
70  *      settings, only the first radio will send a regulatory domain request
71  *      and use strict settings. The rest of the radios are expected to follow.
72  * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
73  *      settings. All radios will adhere to this.
74  * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
75  *      domain settings, combined with secondary driver regulatory domain
76  *      settings. The first radio will get a strict regulatory domain setting
77  *      using the first driver regulatory request and the second radio will use
78  *      non-strict settings using the second driver regulatory request. All
79  *      other devices should follow the intersection created between the
80  *      first two.
81  * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
82  *      at least 6 radios for a complete test. We will test in this order:
83  *      1 - driver custom world regulatory domain
84  *      2 - second custom world regulatory domain
85  *      3 - first driver regulatory domain request
86  *      4 - second driver regulatory domain request
87  *      5 - strict regulatory domain settings using the third driver regulatory
88  *          domain request
89  *      6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
90  *                 regulatory requests.
91  */
92 enum hwsim_regtest {
93         HWSIM_REGTEST_DISABLED = 0,
94         HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1,
95         HWSIM_REGTEST_DRIVER_REG_ALL = 2,
96         HWSIM_REGTEST_DIFF_COUNTRY = 3,
97         HWSIM_REGTEST_WORLD_ROAM = 4,
98         HWSIM_REGTEST_CUSTOM_WORLD = 5,
99         HWSIM_REGTEST_CUSTOM_WORLD_2 = 6,
100         HWSIM_REGTEST_STRICT_FOLLOW = 7,
101         HWSIM_REGTEST_STRICT_ALL = 8,
102         HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9,
103         HWSIM_REGTEST_ALL = 10,
104 };
105
106 /* Set to one of the HWSIM_REGTEST_* values above */
107 static int regtest = HWSIM_REGTEST_DISABLED;
108 module_param(regtest, int, 0444);
109 MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run");
110
111 static const char *hwsim_alpha2s[] = {
112         "FI",
113         "AL",
114         "US",
115         "DE",
116         "JP",
117         "AL",
118 };
119
120 static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = {
121         .n_reg_rules = 4,
122         .alpha2 =  "99",
123         .reg_rules = {
124                 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
125                 REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
126                 REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
127                 REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
128         }
129 };
130
131 static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = {
132         .n_reg_rules = 2,
133         .alpha2 =  "99",
134         .reg_rules = {
135                 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
136                 REG_RULE(5725-10, 5850+10, 40, 0, 30,
137                         NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
138         }
139 };
140
141 struct hwsim_vif_priv {
142         u32 magic;
143         u8 bssid[ETH_ALEN];
144         bool assoc;
145         u16 aid;
146 };
147
148 #define HWSIM_VIF_MAGIC 0x69537748
149
150 static inline void hwsim_check_magic(struct ieee80211_vif *vif)
151 {
152         struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
153         WARN_ON(vp->magic != HWSIM_VIF_MAGIC);
154 }
155
156 static inline void hwsim_set_magic(struct ieee80211_vif *vif)
157 {
158         struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
159         vp->magic = HWSIM_VIF_MAGIC;
160 }
161
162 static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
163 {
164         struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
165         vp->magic = 0;
166 }
167
168 struct hwsim_sta_priv {
169         u32 magic;
170 };
171
172 #define HWSIM_STA_MAGIC 0x6d537748
173
174 static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
175 {
176         struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
177         WARN_ON(sp->magic != HWSIM_STA_MAGIC);
178 }
179
180 static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
181 {
182         struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
183         sp->magic = HWSIM_STA_MAGIC;
184 }
185
186 static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
187 {
188         struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
189         sp->magic = 0;
190 }
191
192 static struct class *hwsim_class;
193
194 static struct net_device *hwsim_mon; /* global monitor netdev */
195
196 #define CHAN2G(_freq)  { \
197         .band = IEEE80211_BAND_2GHZ, \
198         .center_freq = (_freq), \
199         .hw_value = (_freq), \
200         .max_power = 20, \
201 }
202
203 #define CHAN5G(_freq) { \
204         .band = IEEE80211_BAND_5GHZ, \
205         .center_freq = (_freq), \
206         .hw_value = (_freq), \
207         .max_power = 20, \
208 }
209
210 static const struct ieee80211_channel hwsim_channels_2ghz[] = {
211         CHAN2G(2412), /* Channel 1 */
212         CHAN2G(2417), /* Channel 2 */
213         CHAN2G(2422), /* Channel 3 */
214         CHAN2G(2427), /* Channel 4 */
215         CHAN2G(2432), /* Channel 5 */
216         CHAN2G(2437), /* Channel 6 */
217         CHAN2G(2442), /* Channel 7 */
218         CHAN2G(2447), /* Channel 8 */
219         CHAN2G(2452), /* Channel 9 */
220         CHAN2G(2457), /* Channel 10 */
221         CHAN2G(2462), /* Channel 11 */
222         CHAN2G(2467), /* Channel 12 */
223         CHAN2G(2472), /* Channel 13 */
224         CHAN2G(2484), /* Channel 14 */
225 };
226
227 static const struct ieee80211_channel hwsim_channels_5ghz[] = {
228         CHAN5G(5180), /* Channel 36 */
229         CHAN5G(5200), /* Channel 40 */
230         CHAN5G(5220), /* Channel 44 */
231         CHAN5G(5240), /* Channel 48 */
232
233         CHAN5G(5260), /* Channel 52 */
234         CHAN5G(5280), /* Channel 56 */
235         CHAN5G(5300), /* Channel 60 */
236         CHAN5G(5320), /* Channel 64 */
237
238         CHAN5G(5500), /* Channel 100 */
239         CHAN5G(5520), /* Channel 104 */
240         CHAN5G(5540), /* Channel 108 */
241         CHAN5G(5560), /* Channel 112 */
242         CHAN5G(5580), /* Channel 116 */
243         CHAN5G(5600), /* Channel 120 */
244         CHAN5G(5620), /* Channel 124 */
245         CHAN5G(5640), /* Channel 128 */
246         CHAN5G(5660), /* Channel 132 */
247         CHAN5G(5680), /* Channel 136 */
248         CHAN5G(5700), /* Channel 140 */
249
250         CHAN5G(5745), /* Channel 149 */
251         CHAN5G(5765), /* Channel 153 */
252         CHAN5G(5785), /* Channel 157 */
253         CHAN5G(5805), /* Channel 161 */
254         CHAN5G(5825), /* Channel 165 */
255 };
256
257 static const struct ieee80211_rate hwsim_rates[] = {
258         { .bitrate = 10 },
259         { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
260         { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
261         { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
262         { .bitrate = 60 },
263         { .bitrate = 90 },
264         { .bitrate = 120 },
265         { .bitrate = 180 },
266         { .bitrate = 240 },
267         { .bitrate = 360 },
268         { .bitrate = 480 },
269         { .bitrate = 540 }
270 };
271
272 static spinlock_t hwsim_radio_lock;
273 static struct list_head hwsim_radios;
274
275 struct mac80211_hwsim_data {
276         struct list_head list;
277         struct ieee80211_hw *hw;
278         struct device *dev;
279         struct ieee80211_supported_band bands[2];
280         struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
281         struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
282         struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
283
284         struct ieee80211_channel *channel;
285         unsigned long beacon_int; /* in jiffies unit */
286         unsigned int rx_filter;
287         int started;
288         struct timer_list beacon_timer;
289         enum ps_mode {
290                 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
291         } ps;
292         bool ps_poll_pending;
293         struct dentry *debugfs;
294         struct dentry *debugfs_ps;
295
296         /*
297          * Only radios in the same group can communicate together (the
298          * channel has to match too). Each bit represents a group. A
299          * radio can be in more then one group.
300          */
301         u64 group;
302         struct dentry *debugfs_group;
303 };
304
305
306 struct hwsim_radiotap_hdr {
307         struct ieee80211_radiotap_header hdr;
308         u8 rt_flags;
309         u8 rt_rate;
310         __le16 rt_channel;
311         __le16 rt_chbitmask;
312 } __attribute__ ((packed));
313
314
315 static int hwsim_mon_xmit(struct sk_buff *skb, struct net_device *dev)
316 {
317         /* TODO: allow packet injection */
318         dev_kfree_skb(skb);
319         return NETDEV_TX_OK;
320 }
321
322
323 static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
324                                       struct sk_buff *tx_skb)
325 {
326         struct mac80211_hwsim_data *data = hw->priv;
327         struct sk_buff *skb;
328         struct hwsim_radiotap_hdr *hdr;
329         u16 flags;
330         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
331         struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
332
333         if (!netif_running(hwsim_mon))
334                 return;
335
336         skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
337         if (skb == NULL)
338                 return;
339
340         hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
341         hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
342         hdr->hdr.it_pad = 0;
343         hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
344         hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
345                                           (1 << IEEE80211_RADIOTAP_RATE) |
346                                           (1 << IEEE80211_RADIOTAP_CHANNEL));
347         hdr->rt_flags = 0;
348         hdr->rt_rate = txrate->bitrate / 5;
349         hdr->rt_channel = cpu_to_le16(data->channel->center_freq);
350         flags = IEEE80211_CHAN_2GHZ;
351         if (txrate->flags & IEEE80211_RATE_ERP_G)
352                 flags |= IEEE80211_CHAN_OFDM;
353         else
354                 flags |= IEEE80211_CHAN_CCK;
355         hdr->rt_chbitmask = cpu_to_le16(flags);
356
357         skb->dev = hwsim_mon;
358         skb_set_mac_header(skb, 0);
359         skb->ip_summed = CHECKSUM_UNNECESSARY;
360         skb->pkt_type = PACKET_OTHERHOST;
361         skb->protocol = htons(ETH_P_802_2);
362         memset(skb->cb, 0, sizeof(skb->cb));
363         netif_rx(skb);
364 }
365
366
367 static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
368                            struct sk_buff *skb)
369 {
370         switch (data->ps) {
371         case PS_DISABLED:
372                 return true;
373         case PS_ENABLED:
374                 return false;
375         case PS_AUTO_POLL:
376                 /* TODO: accept (some) Beacons by default and other frames only
377                  * if pending PS-Poll has been sent */
378                 return true;
379         case PS_MANUAL_POLL:
380                 /* Allow unicast frames to own address if there is a pending
381                  * PS-Poll */
382                 if (data->ps_poll_pending &&
383                     memcmp(data->hw->wiphy->perm_addr, skb->data + 4,
384                            ETH_ALEN) == 0) {
385                         data->ps_poll_pending = false;
386                         return true;
387                 }
388                 return false;
389         }
390
391         return true;
392 }
393
394
395 static bool mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
396                                     struct sk_buff *skb)
397 {
398         struct mac80211_hwsim_data *data = hw->priv, *data2;
399         bool ack = false;
400         struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
401         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
402         struct ieee80211_rx_status rx_status;
403
404         memset(&rx_status, 0, sizeof(rx_status));
405         /* TODO: set mactime */
406         rx_status.freq = data->channel->center_freq;
407         rx_status.band = data->channel->band;
408         rx_status.rate_idx = info->control.rates[0].idx;
409         /* TODO: simulate real signal strength (and optional packet loss) */
410         rx_status.signal = -50;
411
412         if (data->ps != PS_DISABLED)
413                 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
414
415         /* release the skb's source info */
416         skb_orphan(skb);
417         skb_dst_drop(skb);
418         skb->mark = 0;
419         secpath_reset(skb);
420         nf_reset(skb);
421
422         /* Copy skb to all enabled radios that are on the current frequency */
423         spin_lock(&hwsim_radio_lock);
424         list_for_each_entry(data2, &hwsim_radios, list) {
425                 struct sk_buff *nskb;
426
427                 if (data == data2)
428                         continue;
429
430                 if (!data2->started || !hwsim_ps_rx_ok(data2, skb) ||
431                     !data->channel || !data2->channel ||
432                     data->channel->center_freq != data2->channel->center_freq ||
433                     !(data->group & data2->group))
434                         continue;
435
436                 nskb = skb_copy(skb, GFP_ATOMIC);
437                 if (nskb == NULL)
438                         continue;
439
440                 if (memcmp(hdr->addr1, data2->hw->wiphy->perm_addr,
441                            ETH_ALEN) == 0)
442                         ack = true;
443                 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
444                 ieee80211_rx_irqsafe(data2->hw, nskb);
445         }
446         spin_unlock(&hwsim_radio_lock);
447
448         return ack;
449 }
450
451
452 static int mac80211_hwsim_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
453 {
454         bool ack;
455         struct ieee80211_tx_info *txi;
456
457         mac80211_hwsim_monitor_rx(hw, skb);
458
459         if (skb->len < 10) {
460                 /* Should not happen; just a sanity check for addr1 use */
461                 dev_kfree_skb(skb);
462                 return NETDEV_TX_OK;
463         }
464
465         ack = mac80211_hwsim_tx_frame(hw, skb);
466
467         txi = IEEE80211_SKB_CB(skb);
468
469         if (txi->control.vif)
470                 hwsim_check_magic(txi->control.vif);
471         if (txi->control.sta)
472                 hwsim_check_sta_magic(txi->control.sta);
473
474         ieee80211_tx_info_clear_status(txi);
475         if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
476                 txi->flags |= IEEE80211_TX_STAT_ACK;
477         ieee80211_tx_status_irqsafe(hw, skb);
478         return NETDEV_TX_OK;
479 }
480
481
482 static int mac80211_hwsim_start(struct ieee80211_hw *hw)
483 {
484         struct mac80211_hwsim_data *data = hw->priv;
485         printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
486         data->started = 1;
487         return 0;
488 }
489
490
491 static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
492 {
493         struct mac80211_hwsim_data *data = hw->priv;
494         data->started = 0;
495         del_timer(&data->beacon_timer);
496         printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
497 }
498
499
500 static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
501                                         struct ieee80211_if_init_conf *conf)
502 {
503         printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%pM)\n",
504                wiphy_name(hw->wiphy), __func__, conf->type,
505                conf->mac_addr);
506         hwsim_set_magic(conf->vif);
507         return 0;
508 }
509
510
511 static void mac80211_hwsim_remove_interface(
512         struct ieee80211_hw *hw, struct ieee80211_if_init_conf *conf)
513 {
514         printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%pM)\n",
515                wiphy_name(hw->wiphy), __func__, conf->type,
516                conf->mac_addr);
517         hwsim_check_magic(conf->vif);
518         hwsim_clear_magic(conf->vif);
519 }
520
521
522 static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
523                                      struct ieee80211_vif *vif)
524 {
525         struct ieee80211_hw *hw = arg;
526         struct sk_buff *skb;
527         struct ieee80211_tx_info *info;
528
529         hwsim_check_magic(vif);
530
531         if (vif->type != NL80211_IFTYPE_AP &&
532             vif->type != NL80211_IFTYPE_MESH_POINT)
533                 return;
534
535         skb = ieee80211_beacon_get(hw, vif);
536         if (skb == NULL)
537                 return;
538         info = IEEE80211_SKB_CB(skb);
539
540         mac80211_hwsim_monitor_rx(hw, skb);
541         mac80211_hwsim_tx_frame(hw, skb);
542         dev_kfree_skb(skb);
543 }
544
545
546 static void mac80211_hwsim_beacon(unsigned long arg)
547 {
548         struct ieee80211_hw *hw = (struct ieee80211_hw *) arg;
549         struct mac80211_hwsim_data *data = hw->priv;
550
551         if (!data->started)
552                 return;
553
554         ieee80211_iterate_active_interfaces_atomic(
555                 hw, mac80211_hwsim_beacon_tx, hw);
556
557         data->beacon_timer.expires = jiffies + data->beacon_int;
558         add_timer(&data->beacon_timer);
559 }
560
561
562 static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
563 {
564         struct mac80211_hwsim_data *data = hw->priv;
565         struct ieee80211_conf *conf = &hw->conf;
566
567         printk(KERN_DEBUG "%s:%s (freq=%d idle=%d ps=%d)\n",
568                wiphy_name(hw->wiphy), __func__,
569                conf->channel->center_freq,
570                !!(conf->flags & IEEE80211_CONF_IDLE),
571                !!(conf->flags & IEEE80211_CONF_PS));
572
573         data->channel = conf->channel;
574         if (!data->started || !data->beacon_int)
575                 del_timer(&data->beacon_timer);
576         else
577                 mod_timer(&data->beacon_timer, jiffies + data->beacon_int);
578
579         return 0;
580 }
581
582
583 static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
584                                             unsigned int changed_flags,
585                                             unsigned int *total_flags,
586                                             int mc_count,
587                                             struct dev_addr_list *mc_list)
588 {
589         struct mac80211_hwsim_data *data = hw->priv;
590
591         printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
592
593         data->rx_filter = 0;
594         if (*total_flags & FIF_PROMISC_IN_BSS)
595                 data->rx_filter |= FIF_PROMISC_IN_BSS;
596         if (*total_flags & FIF_ALLMULTI)
597                 data->rx_filter |= FIF_ALLMULTI;
598
599         *total_flags = data->rx_filter;
600 }
601
602 static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
603                                             struct ieee80211_vif *vif,
604                                             struct ieee80211_bss_conf *info,
605                                             u32 changed)
606 {
607         struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
608         struct mac80211_hwsim_data *data = hw->priv;
609
610         hwsim_check_magic(vif);
611
612         printk(KERN_DEBUG "%s:%s(changed=0x%x)\n",
613                wiphy_name(hw->wiphy), __func__, changed);
614
615         if (changed & BSS_CHANGED_BSSID) {
616                 printk(KERN_DEBUG "%s:%s: BSSID changed: %pM\n",
617                        wiphy_name(hw->wiphy), __func__,
618                        info->bssid);
619                 memcpy(vp->bssid, info->bssid, ETH_ALEN);
620         }
621
622         if (changed & BSS_CHANGED_ASSOC) {
623                 printk(KERN_DEBUG "  %s: ASSOC: assoc=%d aid=%d\n",
624                        wiphy_name(hw->wiphy), info->assoc, info->aid);
625                 vp->assoc = info->assoc;
626                 vp->aid = info->aid;
627         }
628
629         if (changed & BSS_CHANGED_BEACON_INT) {
630                 printk(KERN_DEBUG "  %s: BCNINT: %d\n",
631                        wiphy_name(hw->wiphy), info->beacon_int);
632                 data->beacon_int = 1024 * info->beacon_int / 1000 * HZ / 1000;
633                 if (WARN_ON(!data->beacon_int))
634                         data->beacon_int = 1;
635         }
636
637         if (changed & BSS_CHANGED_ERP_CTS_PROT) {
638                 printk(KERN_DEBUG "  %s: ERP_CTS_PROT: %d\n",
639                        wiphy_name(hw->wiphy), info->use_cts_prot);
640         }
641
642         if (changed & BSS_CHANGED_ERP_PREAMBLE) {
643                 printk(KERN_DEBUG "  %s: ERP_PREAMBLE: %d\n",
644                        wiphy_name(hw->wiphy), info->use_short_preamble);
645         }
646
647         if (changed & BSS_CHANGED_ERP_SLOT) {
648                 printk(KERN_DEBUG "  %s: ERP_SLOT: %d\n",
649                        wiphy_name(hw->wiphy), info->use_short_slot);
650         }
651
652         if (changed & BSS_CHANGED_HT) {
653                 printk(KERN_DEBUG "  %s: HT: op_mode=0x%x\n",
654                        wiphy_name(hw->wiphy),
655                        info->ht_operation_mode);
656         }
657
658         if (changed & BSS_CHANGED_BASIC_RATES) {
659                 printk(KERN_DEBUG "  %s: BASIC_RATES: 0x%llx\n",
660                        wiphy_name(hw->wiphy),
661                        (unsigned long long) info->basic_rates);
662         }
663 }
664
665 static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
666                                       struct ieee80211_vif *vif,
667                                       enum sta_notify_cmd cmd,
668                                       struct ieee80211_sta *sta)
669 {
670         hwsim_check_magic(vif);
671         switch (cmd) {
672         case STA_NOTIFY_ADD:
673                 hwsim_set_sta_magic(sta);
674                 break;
675         case STA_NOTIFY_REMOVE:
676                 hwsim_clear_sta_magic(sta);
677                 break;
678         case STA_NOTIFY_SLEEP:
679         case STA_NOTIFY_AWAKE:
680                 /* TODO: make good use of these flags */
681                 break;
682         }
683 }
684
685 static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
686                                   struct ieee80211_sta *sta,
687                                   bool set)
688 {
689         hwsim_check_sta_magic(sta);
690         return 0;
691 }
692
693 static int mac80211_hwsim_conf_tx(
694         struct ieee80211_hw *hw, u16 queue,
695         const struct ieee80211_tx_queue_params *params)
696 {
697         printk(KERN_DEBUG "%s:%s (queue=%d txop=%d cw_min=%d cw_max=%d "
698                "aifs=%d)\n",
699                wiphy_name(hw->wiphy), __func__, queue,
700                params->txop, params->cw_min, params->cw_max, params->aifs);
701         return 0;
702 }
703
704 #ifdef CONFIG_NL80211_TESTMODE
705 /*
706  * This section contains example code for using netlink
707  * attributes with the testmode command in nl80211.
708  */
709
710 /* These enums need to be kept in sync with userspace */
711 enum hwsim_testmode_attr {
712         __HWSIM_TM_ATTR_INVALID = 0,
713         HWSIM_TM_ATTR_CMD       = 1,
714         HWSIM_TM_ATTR_PS        = 2,
715
716         /* keep last */
717         __HWSIM_TM_ATTR_AFTER_LAST,
718         HWSIM_TM_ATTR_MAX       = __HWSIM_TM_ATTR_AFTER_LAST - 1
719 };
720
721 enum hwsim_testmode_cmd {
722         HWSIM_TM_CMD_SET_PS             = 0,
723         HWSIM_TM_CMD_GET_PS             = 1,
724 };
725
726 static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
727         [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
728         [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
729 };
730
731 static int hwsim_fops_ps_write(void *dat, u64 val);
732
733 static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
734                                        void *data, int len)
735 {
736         struct mac80211_hwsim_data *hwsim = hw->priv;
737         struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
738         struct sk_buff *skb;
739         int err, ps;
740
741         err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
742                         hwsim_testmode_policy);
743         if (err)
744                 return err;
745
746         if (!tb[HWSIM_TM_ATTR_CMD])
747                 return -EINVAL;
748
749         switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
750         case HWSIM_TM_CMD_SET_PS:
751                 if (!tb[HWSIM_TM_ATTR_PS])
752                         return -EINVAL;
753                 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
754                 return hwsim_fops_ps_write(hwsim, ps);
755         case HWSIM_TM_CMD_GET_PS:
756                 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
757                                                 nla_total_size(sizeof(u32)));
758                 if (!skb)
759                         return -ENOMEM;
760                 NLA_PUT_U32(skb, HWSIM_TM_ATTR_PS, hwsim->ps);
761                 return cfg80211_testmode_reply(skb);
762         default:
763                 return -EOPNOTSUPP;
764         }
765
766  nla_put_failure:
767         kfree_skb(skb);
768         return -ENOBUFS;
769 }
770 #endif
771
772 static const struct ieee80211_ops mac80211_hwsim_ops =
773 {
774         .tx = mac80211_hwsim_tx,
775         .start = mac80211_hwsim_start,
776         .stop = mac80211_hwsim_stop,
777         .add_interface = mac80211_hwsim_add_interface,
778         .remove_interface = mac80211_hwsim_remove_interface,
779         .config = mac80211_hwsim_config,
780         .configure_filter = mac80211_hwsim_configure_filter,
781         .bss_info_changed = mac80211_hwsim_bss_info_changed,
782         .sta_notify = mac80211_hwsim_sta_notify,
783         .set_tim = mac80211_hwsim_set_tim,
784         .conf_tx = mac80211_hwsim_conf_tx,
785         CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
786 };
787
788
789 static void mac80211_hwsim_free(void)
790 {
791         struct list_head tmplist, *i, *tmp;
792         struct mac80211_hwsim_data *data, *tmpdata;
793
794         INIT_LIST_HEAD(&tmplist);
795
796         spin_lock_bh(&hwsim_radio_lock);
797         list_for_each_safe(i, tmp, &hwsim_radios)
798                 list_move(i, &tmplist);
799         spin_unlock_bh(&hwsim_radio_lock);
800
801         list_for_each_entry_safe(data, tmpdata, &tmplist, list) {
802                 debugfs_remove(data->debugfs_group);
803                 debugfs_remove(data->debugfs_ps);
804                 debugfs_remove(data->debugfs);
805                 ieee80211_unregister_hw(data->hw);
806                 device_unregister(data->dev);
807                 ieee80211_free_hw(data->hw);
808         }
809         class_destroy(hwsim_class);
810 }
811
812
813 static struct device_driver mac80211_hwsim_driver = {
814         .name = "mac80211_hwsim"
815 };
816
817 static const struct net_device_ops hwsim_netdev_ops = {
818         .ndo_start_xmit         = hwsim_mon_xmit,
819         .ndo_change_mtu         = eth_change_mtu,
820         .ndo_set_mac_address    = eth_mac_addr,
821         .ndo_validate_addr      = eth_validate_addr,
822 };
823
824 static void hwsim_mon_setup(struct net_device *dev)
825 {
826         dev->netdev_ops = &hwsim_netdev_ops;
827         dev->destructor = free_netdev;
828         ether_setup(dev);
829         dev->tx_queue_len = 0;
830         dev->type = ARPHRD_IEEE80211_RADIOTAP;
831         memset(dev->dev_addr, 0, ETH_ALEN);
832         dev->dev_addr[0] = 0x12;
833 }
834
835
836 static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
837 {
838         struct mac80211_hwsim_data *data = dat;
839         struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
840         struct sk_buff *skb;
841         struct ieee80211_pspoll *pspoll;
842
843         if (!vp->assoc)
844                 return;
845
846         printk(KERN_DEBUG "%s:%s: send PS-Poll to %pM for aid %d\n",
847                wiphy_name(data->hw->wiphy), __func__, vp->bssid, vp->aid);
848
849         skb = dev_alloc_skb(sizeof(*pspoll));
850         if (!skb)
851                 return;
852         pspoll = (void *) skb_put(skb, sizeof(*pspoll));
853         pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
854                                             IEEE80211_STYPE_PSPOLL |
855                                             IEEE80211_FCTL_PM);
856         pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
857         memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
858         memcpy(pspoll->ta, mac, ETH_ALEN);
859         if (!mac80211_hwsim_tx_frame(data->hw, skb))
860                 printk(KERN_DEBUG "%s: PS-Poll frame not ack'ed\n", __func__);
861         dev_kfree_skb(skb);
862 }
863
864
865 static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
866                                 struct ieee80211_vif *vif, int ps)
867 {
868         struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
869         struct sk_buff *skb;
870         struct ieee80211_hdr *hdr;
871
872         if (!vp->assoc)
873                 return;
874
875         printk(KERN_DEBUG "%s:%s: send data::nullfunc to %pM ps=%d\n",
876                wiphy_name(data->hw->wiphy), __func__, vp->bssid, ps);
877
878         skb = dev_alloc_skb(sizeof(*hdr));
879         if (!skb)
880                 return;
881         hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
882         hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
883                                          IEEE80211_STYPE_NULLFUNC |
884                                          (ps ? IEEE80211_FCTL_PM : 0));
885         hdr->duration_id = cpu_to_le16(0);
886         memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
887         memcpy(hdr->addr2, mac, ETH_ALEN);
888         memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
889         if (!mac80211_hwsim_tx_frame(data->hw, skb))
890                 printk(KERN_DEBUG "%s: nullfunc frame not ack'ed\n", __func__);
891         dev_kfree_skb(skb);
892 }
893
894
895 static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
896                                    struct ieee80211_vif *vif)
897 {
898         struct mac80211_hwsim_data *data = dat;
899         hwsim_send_nullfunc(data, mac, vif, 1);
900 }
901
902
903 static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
904                                       struct ieee80211_vif *vif)
905 {
906         struct mac80211_hwsim_data *data = dat;
907         hwsim_send_nullfunc(data, mac, vif, 0);
908 }
909
910
911 static int hwsim_fops_ps_read(void *dat, u64 *val)
912 {
913         struct mac80211_hwsim_data *data = dat;
914         *val = data->ps;
915         return 0;
916 }
917
918 static int hwsim_fops_ps_write(void *dat, u64 val)
919 {
920         struct mac80211_hwsim_data *data = dat;
921         enum ps_mode old_ps;
922
923         if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
924             val != PS_MANUAL_POLL)
925                 return -EINVAL;
926
927         old_ps = data->ps;
928         data->ps = val;
929
930         if (val == PS_MANUAL_POLL) {
931                 ieee80211_iterate_active_interfaces(data->hw,
932                                                     hwsim_send_ps_poll, data);
933                 data->ps_poll_pending = true;
934         } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
935                 ieee80211_iterate_active_interfaces(data->hw,
936                                                     hwsim_send_nullfunc_ps,
937                                                     data);
938         } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
939                 ieee80211_iterate_active_interfaces(data->hw,
940                                                     hwsim_send_nullfunc_no_ps,
941                                                     data);
942         }
943
944         return 0;
945 }
946
947 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
948                         "%llu\n");
949
950
951 static int hwsim_fops_group_read(void *dat, u64 *val)
952 {
953         struct mac80211_hwsim_data *data = dat;
954         *val = data->group;
955         return 0;
956 }
957
958 static int hwsim_fops_group_write(void *dat, u64 val)
959 {
960         struct mac80211_hwsim_data *data = dat;
961         data->group = val;
962         return 0;
963 }
964
965 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
966                         hwsim_fops_group_read, hwsim_fops_group_write,
967                         "%llx\n");
968
969 static int __init init_mac80211_hwsim(void)
970 {
971         int i, err = 0;
972         u8 addr[ETH_ALEN];
973         struct mac80211_hwsim_data *data;
974         struct ieee80211_hw *hw;
975         enum ieee80211_band band;
976
977         if (radios < 1 || radios > 100)
978                 return -EINVAL;
979
980         spin_lock_init(&hwsim_radio_lock);
981         INIT_LIST_HEAD(&hwsim_radios);
982
983         hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
984         if (IS_ERR(hwsim_class))
985                 return PTR_ERR(hwsim_class);
986
987         memset(addr, 0, ETH_ALEN);
988         addr[0] = 0x02;
989
990         for (i = 0; i < radios; i++) {
991                 printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
992                        i);
993                 hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);
994                 if (!hw) {
995                         printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
996                                "failed\n");
997                         err = -ENOMEM;
998                         goto failed;
999                 }
1000                 data = hw->priv;
1001                 data->hw = hw;
1002
1003                 data->dev = device_create(hwsim_class, NULL, 0, hw,
1004                                           "hwsim%d", i);
1005                 if (IS_ERR(data->dev)) {
1006                         printk(KERN_DEBUG
1007                                "mac80211_hwsim: device_create "
1008                                "failed (%ld)\n", PTR_ERR(data->dev));
1009                         err = -ENOMEM;
1010                         goto failed_drvdata;
1011                 }
1012                 data->dev->driver = &mac80211_hwsim_driver;
1013
1014                 SET_IEEE80211_DEV(hw, data->dev);
1015                 addr[3] = i >> 8;
1016                 addr[4] = i;
1017                 SET_IEEE80211_PERM_ADDR(hw, addr);
1018
1019                 hw->channel_change_time = 1;
1020                 hw->queues = 4;
1021                 hw->wiphy->interface_modes =
1022                         BIT(NL80211_IFTYPE_STATION) |
1023                         BIT(NL80211_IFTYPE_AP) |
1024                         BIT(NL80211_IFTYPE_MESH_POINT);
1025
1026                 hw->flags = IEEE80211_HW_MFP_CAPABLE |
1027                             IEEE80211_HW_SIGNAL_DBM;
1028
1029                 /* ask mac80211 to reserve space for magic */
1030                 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
1031                 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
1032
1033                 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
1034                         sizeof(hwsim_channels_2ghz));
1035                 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
1036                         sizeof(hwsim_channels_5ghz));
1037                 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
1038
1039                 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
1040                         struct ieee80211_supported_band *sband = &data->bands[band];
1041                         switch (band) {
1042                         case IEEE80211_BAND_2GHZ:
1043                                 sband->channels = data->channels_2ghz;
1044                                 sband->n_channels =
1045                                         ARRAY_SIZE(hwsim_channels_2ghz);
1046                                 break;
1047                         case IEEE80211_BAND_5GHZ:
1048                                 sband->channels = data->channels_5ghz;
1049                                 sband->n_channels =
1050                                         ARRAY_SIZE(hwsim_channels_5ghz);
1051                                 break;
1052                         default:
1053                                 break;
1054                         }
1055
1056                         sband->bitrates = data->rates;
1057                         sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
1058
1059                         sband->ht_cap.ht_supported = true;
1060                         sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
1061                                 IEEE80211_HT_CAP_GRN_FLD |
1062                                 IEEE80211_HT_CAP_SGI_40 |
1063                                 IEEE80211_HT_CAP_DSSSCCK40;
1064                         sband->ht_cap.ampdu_factor = 0x3;
1065                         sband->ht_cap.ampdu_density = 0x6;
1066                         memset(&sband->ht_cap.mcs, 0,
1067                                sizeof(sband->ht_cap.mcs));
1068                         sband->ht_cap.mcs.rx_mask[0] = 0xff;
1069                         sband->ht_cap.mcs.rx_mask[1] = 0xff;
1070                         sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1071
1072                         hw->wiphy->bands[band] = sband;
1073                 }
1074                 /* By default all radios are belonging to the first group */
1075                 data->group = 1;
1076
1077                 /* Work to be done prior to ieee80211_register_hw() */
1078                 switch (regtest) {
1079                 case HWSIM_REGTEST_DISABLED:
1080                 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
1081                 case HWSIM_REGTEST_DRIVER_REG_ALL:
1082                 case HWSIM_REGTEST_DIFF_COUNTRY:
1083                         /*
1084                          * Nothing to be done for driver regulatory domain
1085                          * hints prior to ieee80211_register_hw()
1086                          */
1087                         break;
1088                 case HWSIM_REGTEST_WORLD_ROAM:
1089                         if (i == 0) {
1090                                 hw->wiphy->custom_regulatory = true;
1091                                 wiphy_apply_custom_regulatory(hw->wiphy,
1092                                         &hwsim_world_regdom_custom_01);
1093                         }
1094                         break;
1095                 case HWSIM_REGTEST_CUSTOM_WORLD:
1096                         hw->wiphy->custom_regulatory = true;
1097                         wiphy_apply_custom_regulatory(hw->wiphy,
1098                                 &hwsim_world_regdom_custom_01);
1099                         break;
1100                 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1101                         if (i == 0) {
1102                                 hw->wiphy->custom_regulatory = true;
1103                                 wiphy_apply_custom_regulatory(hw->wiphy,
1104                                         &hwsim_world_regdom_custom_01);
1105                         } else if (i == 1) {
1106                                 hw->wiphy->custom_regulatory = true;
1107                                 wiphy_apply_custom_regulatory(hw->wiphy,
1108                                         &hwsim_world_regdom_custom_02);
1109                         }
1110                         break;
1111                 case HWSIM_REGTEST_STRICT_ALL:
1112                         hw->wiphy->strict_regulatory = true;
1113                         break;
1114                 case HWSIM_REGTEST_STRICT_FOLLOW:
1115                 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1116                         if (i == 0)
1117                                 hw->wiphy->strict_regulatory = true;
1118                         break;
1119                 case HWSIM_REGTEST_ALL:
1120                         if (i == 0) {
1121                                 hw->wiphy->custom_regulatory = true;
1122                                 wiphy_apply_custom_regulatory(hw->wiphy,
1123                                         &hwsim_world_regdom_custom_01);
1124                         } else if (i == 1) {
1125                                 hw->wiphy->custom_regulatory = true;
1126                                 wiphy_apply_custom_regulatory(hw->wiphy,
1127                                         &hwsim_world_regdom_custom_02);
1128                         } else if (i == 4)
1129                                 hw->wiphy->strict_regulatory = true;
1130                         break;
1131                 default:
1132                         break;
1133                 }
1134
1135                 /* give the regulatory workqueue a chance to run */
1136                 if (regtest)
1137                         schedule_timeout_interruptible(1);
1138                 err = ieee80211_register_hw(hw);
1139                 if (err < 0) {
1140                         printk(KERN_DEBUG "mac80211_hwsim: "
1141                                "ieee80211_register_hw failed (%d)\n", err);
1142                         goto failed_hw;
1143                 }
1144
1145                 /* Work to be done after to ieee80211_register_hw() */
1146                 switch (regtest) {
1147                 case HWSIM_REGTEST_WORLD_ROAM:
1148                 case HWSIM_REGTEST_DISABLED:
1149                         break;
1150                 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
1151                         if (!i)
1152                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1153                         break;
1154                 case HWSIM_REGTEST_DRIVER_REG_ALL:
1155                 case HWSIM_REGTEST_STRICT_ALL:
1156                         regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1157                         break;
1158                 case HWSIM_REGTEST_DIFF_COUNTRY:
1159                         if (i < ARRAY_SIZE(hwsim_alpha2s))
1160                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[i]);
1161                         break;
1162                 case HWSIM_REGTEST_CUSTOM_WORLD:
1163                 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1164                         /*
1165                          * Nothing to be done for custom world regulatory
1166                          * domains after to ieee80211_register_hw
1167                          */
1168                         break;
1169                 case HWSIM_REGTEST_STRICT_FOLLOW:
1170                         if (i == 0)
1171                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1172                         break;
1173                 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1174                         if (i == 0)
1175                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1176                         else if (i == 1)
1177                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1178                         break;
1179                 case HWSIM_REGTEST_ALL:
1180                         if (i == 2)
1181                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1182                         else if (i == 3)
1183                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1184                         else if (i == 4)
1185                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[2]);
1186                         break;
1187                 default:
1188                         break;
1189                 }
1190
1191                 printk(KERN_DEBUG "%s: hwaddr %pM registered\n",
1192                        wiphy_name(hw->wiphy),
1193                        hw->wiphy->perm_addr);
1194
1195                 data->debugfs = debugfs_create_dir("hwsim",
1196                                                    hw->wiphy->debugfsdir);
1197                 data->debugfs_ps = debugfs_create_file("ps", 0666,
1198                                                        data->debugfs, data,
1199                                                        &hwsim_fops_ps);
1200                 data->debugfs_group = debugfs_create_file("group", 0666,
1201                                                         data->debugfs, data,
1202                                                         &hwsim_fops_group);
1203
1204                 setup_timer(&data->beacon_timer, mac80211_hwsim_beacon,
1205                             (unsigned long) hw);
1206
1207                 list_add_tail(&data->list, &hwsim_radios);
1208         }
1209
1210         hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
1211         if (hwsim_mon == NULL)
1212                 goto failed;
1213
1214         rtnl_lock();
1215
1216         err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
1217         if (err < 0)
1218                 goto failed_mon;
1219
1220
1221         err = register_netdevice(hwsim_mon);
1222         if (err < 0)
1223                 goto failed_mon;
1224
1225         rtnl_unlock();
1226
1227         return 0;
1228
1229 failed_mon:
1230         rtnl_unlock();
1231         free_netdev(hwsim_mon);
1232         mac80211_hwsim_free();
1233         return err;
1234
1235 failed_hw:
1236         device_unregister(data->dev);
1237 failed_drvdata:
1238         ieee80211_free_hw(hw);
1239 failed:
1240         mac80211_hwsim_free();
1241         return err;
1242 }
1243
1244
1245 static void __exit exit_mac80211_hwsim(void)
1246 {
1247         printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
1248
1249         mac80211_hwsim_free();
1250         unregister_netdev(hwsim_mon);
1251 }
1252
1253
1254 module_init(init_mac80211_hwsim);
1255 module_exit(exit_mac80211_hwsim);