92c669ebb358f8a49b87d099c3b3f4cd537aa7c1
[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         bool started, idle;
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 netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
316                                         struct net_device *dev)
317 {
318         /* TODO: allow packet injection */
319         dev_kfree_skb(skb);
320         return NETDEV_TX_OK;
321 }
322
323
324 static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
325                                       struct sk_buff *tx_skb)
326 {
327         struct mac80211_hwsim_data *data = hw->priv;
328         struct sk_buff *skb;
329         struct hwsim_radiotap_hdr *hdr;
330         u16 flags;
331         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
332         struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
333
334         if (!netif_running(hwsim_mon))
335                 return;
336
337         skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
338         if (skb == NULL)
339                 return;
340
341         hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
342         hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
343         hdr->hdr.it_pad = 0;
344         hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
345         hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
346                                           (1 << IEEE80211_RADIOTAP_RATE) |
347                                           (1 << IEEE80211_RADIOTAP_CHANNEL));
348         hdr->rt_flags = 0;
349         hdr->rt_rate = txrate->bitrate / 5;
350         hdr->rt_channel = cpu_to_le16(data->channel->center_freq);
351         flags = IEEE80211_CHAN_2GHZ;
352         if (txrate->flags & IEEE80211_RATE_ERP_G)
353                 flags |= IEEE80211_CHAN_OFDM;
354         else
355                 flags |= IEEE80211_CHAN_CCK;
356         hdr->rt_chbitmask = cpu_to_le16(flags);
357
358         skb->dev = hwsim_mon;
359         skb_set_mac_header(skb, 0);
360         skb->ip_summed = CHECKSUM_UNNECESSARY;
361         skb->pkt_type = PACKET_OTHERHOST;
362         skb->protocol = htons(ETH_P_802_2);
363         memset(skb->cb, 0, sizeof(skb->cb));
364         netif_rx(skb);
365 }
366
367
368 static void mac80211_hwsim_monitor_ack(struct ieee80211_hw *hw, const u8 *addr)
369 {
370         struct mac80211_hwsim_data *data = hw->priv;
371         struct sk_buff *skb;
372         struct hwsim_radiotap_hdr *hdr;
373         u16 flags;
374         struct ieee80211_hdr *hdr11;
375
376         if (!netif_running(hwsim_mon))
377                 return;
378
379         skb = dev_alloc_skb(100);
380         if (skb == NULL)
381                 return;
382
383         hdr = (struct hwsim_radiotap_hdr *) skb_put(skb, sizeof(*hdr));
384         hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
385         hdr->hdr.it_pad = 0;
386         hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
387         hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
388                                           (1 << IEEE80211_RADIOTAP_CHANNEL));
389         hdr->rt_flags = 0;
390         hdr->rt_rate = 0;
391         hdr->rt_channel = cpu_to_le16(data->channel->center_freq);
392         flags = IEEE80211_CHAN_2GHZ;
393         hdr->rt_chbitmask = cpu_to_le16(flags);
394
395         hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
396         hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
397                                            IEEE80211_STYPE_ACK);
398         hdr11->duration_id = cpu_to_le16(0);
399         memcpy(hdr11->addr1, addr, ETH_ALEN);
400
401         skb->dev = hwsim_mon;
402         skb_set_mac_header(skb, 0);
403         skb->ip_summed = CHECKSUM_UNNECESSARY;
404         skb->pkt_type = PACKET_OTHERHOST;
405         skb->protocol = htons(ETH_P_802_2);
406         memset(skb->cb, 0, sizeof(skb->cb));
407         netif_rx(skb);
408 }
409
410
411 static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
412                            struct sk_buff *skb)
413 {
414         switch (data->ps) {
415         case PS_DISABLED:
416                 return true;
417         case PS_ENABLED:
418                 return false;
419         case PS_AUTO_POLL:
420                 /* TODO: accept (some) Beacons by default and other frames only
421                  * if pending PS-Poll has been sent */
422                 return true;
423         case PS_MANUAL_POLL:
424                 /* Allow unicast frames to own address if there is a pending
425                  * PS-Poll */
426                 if (data->ps_poll_pending &&
427                     memcmp(data->hw->wiphy->perm_addr, skb->data + 4,
428                            ETH_ALEN) == 0) {
429                         data->ps_poll_pending = false;
430                         return true;
431                 }
432                 return false;
433         }
434
435         return true;
436 }
437
438
439 static bool mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
440                                     struct sk_buff *skb)
441 {
442         struct mac80211_hwsim_data *data = hw->priv, *data2;
443         bool ack = false;
444         struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
445         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
446         struct ieee80211_rx_status rx_status;
447
448         if (data->idle) {
449                 printk(KERN_DEBUG "%s: Trying to TX when idle - reject\n",
450                        wiphy_name(hw->wiphy));
451                 return false;
452         }
453
454         memset(&rx_status, 0, sizeof(rx_status));
455         /* TODO: set mactime */
456         rx_status.freq = data->channel->center_freq;
457         rx_status.band = data->channel->band;
458         rx_status.rate_idx = info->control.rates[0].idx;
459         /* TODO: simulate real signal strength (and optional packet loss) */
460         rx_status.signal = -50;
461
462         if (data->ps != PS_DISABLED)
463                 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
464
465         /* release the skb's source info */
466         skb_orphan(skb);
467         skb_dst_drop(skb);
468         skb->mark = 0;
469         secpath_reset(skb);
470         nf_reset(skb);
471
472         /* Copy skb to all enabled radios that are on the current frequency */
473         spin_lock(&hwsim_radio_lock);
474         list_for_each_entry(data2, &hwsim_radios, list) {
475                 struct sk_buff *nskb;
476
477                 if (data == data2)
478                         continue;
479
480                 if (data2->idle || !data2->started ||
481                     !hwsim_ps_rx_ok(data2, skb) ||
482                     !data->channel || !data2->channel ||
483                     data->channel->center_freq != data2->channel->center_freq ||
484                     !(data->group & data2->group))
485                         continue;
486
487                 nskb = skb_copy(skb, GFP_ATOMIC);
488                 if (nskb == NULL)
489                         continue;
490
491                 if (memcmp(hdr->addr1, data2->hw->wiphy->perm_addr,
492                            ETH_ALEN) == 0)
493                         ack = true;
494                 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
495                 ieee80211_rx_irqsafe(data2->hw, nskb);
496         }
497         spin_unlock(&hwsim_radio_lock);
498
499         return ack;
500 }
501
502
503 static int mac80211_hwsim_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
504 {
505         bool ack;
506         struct ieee80211_tx_info *txi;
507
508         mac80211_hwsim_monitor_rx(hw, skb);
509
510         if (skb->len < 10) {
511                 /* Should not happen; just a sanity check for addr1 use */
512                 dev_kfree_skb(skb);
513                 return NETDEV_TX_OK;
514         }
515
516         ack = mac80211_hwsim_tx_frame(hw, skb);
517         if (ack && skb->len >= 16) {
518                 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
519                 mac80211_hwsim_monitor_ack(hw, hdr->addr2);
520         }
521
522         txi = IEEE80211_SKB_CB(skb);
523
524         if (txi->control.vif)
525                 hwsim_check_magic(txi->control.vif);
526         if (txi->control.sta)
527                 hwsim_check_sta_magic(txi->control.sta);
528
529         ieee80211_tx_info_clear_status(txi);
530         if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
531                 txi->flags |= IEEE80211_TX_STAT_ACK;
532         ieee80211_tx_status_irqsafe(hw, skb);
533         return NETDEV_TX_OK;
534 }
535
536
537 static int mac80211_hwsim_start(struct ieee80211_hw *hw)
538 {
539         struct mac80211_hwsim_data *data = hw->priv;
540         printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
541         data->started = 1;
542         return 0;
543 }
544
545
546 static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
547 {
548         struct mac80211_hwsim_data *data = hw->priv;
549         data->started = 0;
550         del_timer(&data->beacon_timer);
551         printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
552 }
553
554
555 static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
556                                         struct ieee80211_if_init_conf *conf)
557 {
558         printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%pM)\n",
559                wiphy_name(hw->wiphy), __func__, conf->type,
560                conf->mac_addr);
561         hwsim_set_magic(conf->vif);
562         return 0;
563 }
564
565
566 static void mac80211_hwsim_remove_interface(
567         struct ieee80211_hw *hw, struct ieee80211_if_init_conf *conf)
568 {
569         printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%pM)\n",
570                wiphy_name(hw->wiphy), __func__, conf->type,
571                conf->mac_addr);
572         hwsim_check_magic(conf->vif);
573         hwsim_clear_magic(conf->vif);
574 }
575
576
577 static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
578                                      struct ieee80211_vif *vif)
579 {
580         struct ieee80211_hw *hw = arg;
581         struct sk_buff *skb;
582         struct ieee80211_tx_info *info;
583
584         hwsim_check_magic(vif);
585
586         if (vif->type != NL80211_IFTYPE_AP &&
587             vif->type != NL80211_IFTYPE_MESH_POINT)
588                 return;
589
590         skb = ieee80211_beacon_get(hw, vif);
591         if (skb == NULL)
592                 return;
593         info = IEEE80211_SKB_CB(skb);
594
595         mac80211_hwsim_monitor_rx(hw, skb);
596         mac80211_hwsim_tx_frame(hw, skb);
597         dev_kfree_skb(skb);
598 }
599
600
601 static void mac80211_hwsim_beacon(unsigned long arg)
602 {
603         struct ieee80211_hw *hw = (struct ieee80211_hw *) arg;
604         struct mac80211_hwsim_data *data = hw->priv;
605
606         if (!data->started)
607                 return;
608
609         ieee80211_iterate_active_interfaces_atomic(
610                 hw, mac80211_hwsim_beacon_tx, hw);
611
612         data->beacon_timer.expires = jiffies + data->beacon_int;
613         add_timer(&data->beacon_timer);
614 }
615
616
617 static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
618 {
619         struct mac80211_hwsim_data *data = hw->priv;
620         struct ieee80211_conf *conf = &hw->conf;
621         static const char *chantypes[4] = {
622                 [NL80211_CHAN_NO_HT] = "noht",
623                 [NL80211_CHAN_HT20] = "ht20",
624                 [NL80211_CHAN_HT40MINUS] = "ht40-",
625                 [NL80211_CHAN_HT40PLUS] = "ht40+",
626         };
627         static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
628                 [IEEE80211_SMPS_AUTOMATIC] = "auto",
629                 [IEEE80211_SMPS_OFF] = "off",
630                 [IEEE80211_SMPS_STATIC] = "static",
631                 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
632         };
633
634         printk(KERN_DEBUG "%s:%s (freq=%d/%s idle=%d ps=%d smps=%s)\n",
635                wiphy_name(hw->wiphy), __func__,
636                conf->channel->center_freq,
637                chantypes[conf->channel_type],
638                !!(conf->flags & IEEE80211_CONF_IDLE),
639                !!(conf->flags & IEEE80211_CONF_PS),
640                smps_modes[conf->smps_mode]);
641
642         data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
643
644         data->channel = conf->channel;
645         if (!data->started || !data->beacon_int)
646                 del_timer(&data->beacon_timer);
647         else
648                 mod_timer(&data->beacon_timer, jiffies + data->beacon_int);
649
650         return 0;
651 }
652
653
654 static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
655                                             unsigned int changed_flags,
656                                             unsigned int *total_flags,u64 multicast)
657 {
658         struct mac80211_hwsim_data *data = hw->priv;
659
660         printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
661
662         data->rx_filter = 0;
663         if (*total_flags & FIF_PROMISC_IN_BSS)
664                 data->rx_filter |= FIF_PROMISC_IN_BSS;
665         if (*total_flags & FIF_ALLMULTI)
666                 data->rx_filter |= FIF_ALLMULTI;
667
668         *total_flags = data->rx_filter;
669 }
670
671 static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
672                                             struct ieee80211_vif *vif,
673                                             struct ieee80211_bss_conf *info,
674                                             u32 changed)
675 {
676         struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
677         struct mac80211_hwsim_data *data = hw->priv;
678
679         hwsim_check_magic(vif);
680
681         printk(KERN_DEBUG "%s:%s(changed=0x%x)\n",
682                wiphy_name(hw->wiphy), __func__, changed);
683
684         if (changed & BSS_CHANGED_BSSID) {
685                 printk(KERN_DEBUG "%s:%s: BSSID changed: %pM\n",
686                        wiphy_name(hw->wiphy), __func__,
687                        info->bssid);
688                 memcpy(vp->bssid, info->bssid, ETH_ALEN);
689         }
690
691         if (changed & BSS_CHANGED_ASSOC) {
692                 printk(KERN_DEBUG "  %s: ASSOC: assoc=%d aid=%d\n",
693                        wiphy_name(hw->wiphy), info->assoc, info->aid);
694                 vp->assoc = info->assoc;
695                 vp->aid = info->aid;
696         }
697
698         if (changed & BSS_CHANGED_BEACON_INT) {
699                 printk(KERN_DEBUG "  %s: BCNINT: %d\n",
700                        wiphy_name(hw->wiphy), info->beacon_int);
701                 data->beacon_int = 1024 * info->beacon_int / 1000 * HZ / 1000;
702                 if (WARN_ON(!data->beacon_int))
703                         data->beacon_int = 1;
704                 if (data->started)
705                         mod_timer(&data->beacon_timer,
706                                   jiffies + data->beacon_int);
707         }
708
709         if (changed & BSS_CHANGED_ERP_CTS_PROT) {
710                 printk(KERN_DEBUG "  %s: ERP_CTS_PROT: %d\n",
711                        wiphy_name(hw->wiphy), info->use_cts_prot);
712         }
713
714         if (changed & BSS_CHANGED_ERP_PREAMBLE) {
715                 printk(KERN_DEBUG "  %s: ERP_PREAMBLE: %d\n",
716                        wiphy_name(hw->wiphy), info->use_short_preamble);
717         }
718
719         if (changed & BSS_CHANGED_ERP_SLOT) {
720                 printk(KERN_DEBUG "  %s: ERP_SLOT: %d\n",
721                        wiphy_name(hw->wiphy), info->use_short_slot);
722         }
723
724         if (changed & BSS_CHANGED_HT) {
725                 printk(KERN_DEBUG "  %s: HT: op_mode=0x%x\n",
726                        wiphy_name(hw->wiphy),
727                        info->ht_operation_mode);
728         }
729
730         if (changed & BSS_CHANGED_BASIC_RATES) {
731                 printk(KERN_DEBUG "  %s: BASIC_RATES: 0x%llx\n",
732                        wiphy_name(hw->wiphy),
733                        (unsigned long long) info->basic_rates);
734         }
735 }
736
737 static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
738                                       struct ieee80211_vif *vif,
739                                       enum sta_notify_cmd cmd,
740                                       struct ieee80211_sta *sta)
741 {
742         hwsim_check_magic(vif);
743         switch (cmd) {
744         case STA_NOTIFY_ADD:
745                 hwsim_set_sta_magic(sta);
746                 break;
747         case STA_NOTIFY_REMOVE:
748                 hwsim_clear_sta_magic(sta);
749                 break;
750         case STA_NOTIFY_SLEEP:
751         case STA_NOTIFY_AWAKE:
752                 /* TODO: make good use of these flags */
753                 break;
754         }
755 }
756
757 static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
758                                   struct ieee80211_sta *sta,
759                                   bool set)
760 {
761         hwsim_check_sta_magic(sta);
762         return 0;
763 }
764
765 static int mac80211_hwsim_conf_tx(
766         struct ieee80211_hw *hw, u16 queue,
767         const struct ieee80211_tx_queue_params *params)
768 {
769         printk(KERN_DEBUG "%s:%s (queue=%d txop=%d cw_min=%d cw_max=%d "
770                "aifs=%d)\n",
771                wiphy_name(hw->wiphy), __func__, queue,
772                params->txop, params->cw_min, params->cw_max, params->aifs);
773         return 0;
774 }
775
776 #ifdef CONFIG_NL80211_TESTMODE
777 /*
778  * This section contains example code for using netlink
779  * attributes with the testmode command in nl80211.
780  */
781
782 /* These enums need to be kept in sync with userspace */
783 enum hwsim_testmode_attr {
784         __HWSIM_TM_ATTR_INVALID = 0,
785         HWSIM_TM_ATTR_CMD       = 1,
786         HWSIM_TM_ATTR_PS        = 2,
787
788         /* keep last */
789         __HWSIM_TM_ATTR_AFTER_LAST,
790         HWSIM_TM_ATTR_MAX       = __HWSIM_TM_ATTR_AFTER_LAST - 1
791 };
792
793 enum hwsim_testmode_cmd {
794         HWSIM_TM_CMD_SET_PS             = 0,
795         HWSIM_TM_CMD_GET_PS             = 1,
796 };
797
798 static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
799         [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
800         [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
801 };
802
803 static int hwsim_fops_ps_write(void *dat, u64 val);
804
805 static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
806                                        void *data, int len)
807 {
808         struct mac80211_hwsim_data *hwsim = hw->priv;
809         struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
810         struct sk_buff *skb;
811         int err, ps;
812
813         err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
814                         hwsim_testmode_policy);
815         if (err)
816                 return err;
817
818         if (!tb[HWSIM_TM_ATTR_CMD])
819                 return -EINVAL;
820
821         switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
822         case HWSIM_TM_CMD_SET_PS:
823                 if (!tb[HWSIM_TM_ATTR_PS])
824                         return -EINVAL;
825                 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
826                 return hwsim_fops_ps_write(hwsim, ps);
827         case HWSIM_TM_CMD_GET_PS:
828                 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
829                                                 nla_total_size(sizeof(u32)));
830                 if (!skb)
831                         return -ENOMEM;
832                 NLA_PUT_U32(skb, HWSIM_TM_ATTR_PS, hwsim->ps);
833                 return cfg80211_testmode_reply(skb);
834         default:
835                 return -EOPNOTSUPP;
836         }
837
838  nla_put_failure:
839         kfree_skb(skb);
840         return -ENOBUFS;
841 }
842 #endif
843
844 static const struct ieee80211_ops mac80211_hwsim_ops =
845 {
846         .tx = mac80211_hwsim_tx,
847         .start = mac80211_hwsim_start,
848         .stop = mac80211_hwsim_stop,
849         .add_interface = mac80211_hwsim_add_interface,
850         .remove_interface = mac80211_hwsim_remove_interface,
851         .config = mac80211_hwsim_config,
852         .configure_filter = mac80211_hwsim_configure_filter,
853         .bss_info_changed = mac80211_hwsim_bss_info_changed,
854         .sta_notify = mac80211_hwsim_sta_notify,
855         .set_tim = mac80211_hwsim_set_tim,
856         .conf_tx = mac80211_hwsim_conf_tx,
857         CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
858 };
859
860
861 static void mac80211_hwsim_free(void)
862 {
863         struct list_head tmplist, *i, *tmp;
864         struct mac80211_hwsim_data *data, *tmpdata;
865
866         INIT_LIST_HEAD(&tmplist);
867
868         spin_lock_bh(&hwsim_radio_lock);
869         list_for_each_safe(i, tmp, &hwsim_radios)
870                 list_move(i, &tmplist);
871         spin_unlock_bh(&hwsim_radio_lock);
872
873         list_for_each_entry_safe(data, tmpdata, &tmplist, list) {
874                 debugfs_remove(data->debugfs_group);
875                 debugfs_remove(data->debugfs_ps);
876                 debugfs_remove(data->debugfs);
877                 ieee80211_unregister_hw(data->hw);
878                 device_unregister(data->dev);
879                 ieee80211_free_hw(data->hw);
880         }
881         class_destroy(hwsim_class);
882 }
883
884
885 static struct device_driver mac80211_hwsim_driver = {
886         .name = "mac80211_hwsim"
887 };
888
889 static const struct net_device_ops hwsim_netdev_ops = {
890         .ndo_start_xmit         = hwsim_mon_xmit,
891         .ndo_change_mtu         = eth_change_mtu,
892         .ndo_set_mac_address    = eth_mac_addr,
893         .ndo_validate_addr      = eth_validate_addr,
894 };
895
896 static void hwsim_mon_setup(struct net_device *dev)
897 {
898         dev->netdev_ops = &hwsim_netdev_ops;
899         dev->destructor = free_netdev;
900         ether_setup(dev);
901         dev->tx_queue_len = 0;
902         dev->type = ARPHRD_IEEE80211_RADIOTAP;
903         memset(dev->dev_addr, 0, ETH_ALEN);
904         dev->dev_addr[0] = 0x12;
905 }
906
907
908 static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
909 {
910         struct mac80211_hwsim_data *data = dat;
911         struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
912         struct sk_buff *skb;
913         struct ieee80211_pspoll *pspoll;
914
915         if (!vp->assoc)
916                 return;
917
918         printk(KERN_DEBUG "%s:%s: send PS-Poll to %pM for aid %d\n",
919                wiphy_name(data->hw->wiphy), __func__, vp->bssid, vp->aid);
920
921         skb = dev_alloc_skb(sizeof(*pspoll));
922         if (!skb)
923                 return;
924         pspoll = (void *) skb_put(skb, sizeof(*pspoll));
925         pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
926                                             IEEE80211_STYPE_PSPOLL |
927                                             IEEE80211_FCTL_PM);
928         pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
929         memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
930         memcpy(pspoll->ta, mac, ETH_ALEN);
931         if (!mac80211_hwsim_tx_frame(data->hw, skb))
932                 printk(KERN_DEBUG "%s: PS-Poll frame not ack'ed\n", __func__);
933         dev_kfree_skb(skb);
934 }
935
936
937 static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
938                                 struct ieee80211_vif *vif, int ps)
939 {
940         struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
941         struct sk_buff *skb;
942         struct ieee80211_hdr *hdr;
943
944         if (!vp->assoc)
945                 return;
946
947         printk(KERN_DEBUG "%s:%s: send data::nullfunc to %pM ps=%d\n",
948                wiphy_name(data->hw->wiphy), __func__, vp->bssid, ps);
949
950         skb = dev_alloc_skb(sizeof(*hdr));
951         if (!skb)
952                 return;
953         hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
954         hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
955                                          IEEE80211_STYPE_NULLFUNC |
956                                          (ps ? IEEE80211_FCTL_PM : 0));
957         hdr->duration_id = cpu_to_le16(0);
958         memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
959         memcpy(hdr->addr2, mac, ETH_ALEN);
960         memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
961         if (!mac80211_hwsim_tx_frame(data->hw, skb))
962                 printk(KERN_DEBUG "%s: nullfunc frame not ack'ed\n", __func__);
963         dev_kfree_skb(skb);
964 }
965
966
967 static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
968                                    struct ieee80211_vif *vif)
969 {
970         struct mac80211_hwsim_data *data = dat;
971         hwsim_send_nullfunc(data, mac, vif, 1);
972 }
973
974
975 static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
976                                       struct ieee80211_vif *vif)
977 {
978         struct mac80211_hwsim_data *data = dat;
979         hwsim_send_nullfunc(data, mac, vif, 0);
980 }
981
982
983 static int hwsim_fops_ps_read(void *dat, u64 *val)
984 {
985         struct mac80211_hwsim_data *data = dat;
986         *val = data->ps;
987         return 0;
988 }
989
990 static int hwsim_fops_ps_write(void *dat, u64 val)
991 {
992         struct mac80211_hwsim_data *data = dat;
993         enum ps_mode old_ps;
994
995         if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
996             val != PS_MANUAL_POLL)
997                 return -EINVAL;
998
999         old_ps = data->ps;
1000         data->ps = val;
1001
1002         if (val == PS_MANUAL_POLL) {
1003                 ieee80211_iterate_active_interfaces(data->hw,
1004                                                     hwsim_send_ps_poll, data);
1005                 data->ps_poll_pending = true;
1006         } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
1007                 ieee80211_iterate_active_interfaces(data->hw,
1008                                                     hwsim_send_nullfunc_ps,
1009                                                     data);
1010         } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
1011                 ieee80211_iterate_active_interfaces(data->hw,
1012                                                     hwsim_send_nullfunc_no_ps,
1013                                                     data);
1014         }
1015
1016         return 0;
1017 }
1018
1019 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
1020                         "%llu\n");
1021
1022
1023 static int hwsim_fops_group_read(void *dat, u64 *val)
1024 {
1025         struct mac80211_hwsim_data *data = dat;
1026         *val = data->group;
1027         return 0;
1028 }
1029
1030 static int hwsim_fops_group_write(void *dat, u64 val)
1031 {
1032         struct mac80211_hwsim_data *data = dat;
1033         data->group = val;
1034         return 0;
1035 }
1036
1037 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
1038                         hwsim_fops_group_read, hwsim_fops_group_write,
1039                         "%llx\n");
1040
1041 static int __init init_mac80211_hwsim(void)
1042 {
1043         int i, err = 0;
1044         u8 addr[ETH_ALEN];
1045         struct mac80211_hwsim_data *data;
1046         struct ieee80211_hw *hw;
1047         enum ieee80211_band band;
1048
1049         if (radios < 1 || radios > 100)
1050                 return -EINVAL;
1051
1052         spin_lock_init(&hwsim_radio_lock);
1053         INIT_LIST_HEAD(&hwsim_radios);
1054
1055         hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
1056         if (IS_ERR(hwsim_class))
1057                 return PTR_ERR(hwsim_class);
1058
1059         memset(addr, 0, ETH_ALEN);
1060         addr[0] = 0x02;
1061
1062         for (i = 0; i < radios; i++) {
1063                 printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
1064                        i);
1065                 hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);
1066                 if (!hw) {
1067                         printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
1068                                "failed\n");
1069                         err = -ENOMEM;
1070                         goto failed;
1071                 }
1072                 data = hw->priv;
1073                 data->hw = hw;
1074
1075                 data->dev = device_create(hwsim_class, NULL, 0, hw,
1076                                           "hwsim%d", i);
1077                 if (IS_ERR(data->dev)) {
1078                         printk(KERN_DEBUG
1079                                "mac80211_hwsim: device_create "
1080                                "failed (%ld)\n", PTR_ERR(data->dev));
1081                         err = -ENOMEM;
1082                         goto failed_drvdata;
1083                 }
1084                 data->dev->driver = &mac80211_hwsim_driver;
1085
1086                 SET_IEEE80211_DEV(hw, data->dev);
1087                 addr[3] = i >> 8;
1088                 addr[4] = i;
1089                 SET_IEEE80211_PERM_ADDR(hw, addr);
1090
1091                 hw->channel_change_time = 1;
1092                 hw->queues = 4;
1093                 hw->wiphy->interface_modes =
1094                         BIT(NL80211_IFTYPE_STATION) |
1095                         BIT(NL80211_IFTYPE_AP) |
1096                         BIT(NL80211_IFTYPE_MESH_POINT);
1097
1098                 hw->flags = IEEE80211_HW_MFP_CAPABLE |
1099                             IEEE80211_HW_SIGNAL_DBM |
1100                             IEEE80211_HW_SUPPORTS_STATIC_SMPS |
1101                             IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS;
1102
1103                 /* ask mac80211 to reserve space for magic */
1104                 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
1105                 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
1106
1107                 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
1108                         sizeof(hwsim_channels_2ghz));
1109                 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
1110                         sizeof(hwsim_channels_5ghz));
1111                 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
1112
1113                 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
1114                         struct ieee80211_supported_band *sband = &data->bands[band];
1115                         switch (band) {
1116                         case IEEE80211_BAND_2GHZ:
1117                                 sband->channels = data->channels_2ghz;
1118                                 sband->n_channels =
1119                                         ARRAY_SIZE(hwsim_channels_2ghz);
1120                                 sband->bitrates = data->rates;
1121                                 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
1122                                 break;
1123                         case IEEE80211_BAND_5GHZ:
1124                                 sband->channels = data->channels_5ghz;
1125                                 sband->n_channels =
1126                                         ARRAY_SIZE(hwsim_channels_5ghz);
1127                                 sband->bitrates = data->rates + 4;
1128                                 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
1129                                 break;
1130                         default:
1131                                 break;
1132                         }
1133
1134                         sband->ht_cap.ht_supported = true;
1135                         sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
1136                                 IEEE80211_HT_CAP_GRN_FLD |
1137                                 IEEE80211_HT_CAP_SGI_40 |
1138                                 IEEE80211_HT_CAP_DSSSCCK40;
1139                         sband->ht_cap.ampdu_factor = 0x3;
1140                         sband->ht_cap.ampdu_density = 0x6;
1141                         memset(&sband->ht_cap.mcs, 0,
1142                                sizeof(sband->ht_cap.mcs));
1143                         sband->ht_cap.mcs.rx_mask[0] = 0xff;
1144                         sband->ht_cap.mcs.rx_mask[1] = 0xff;
1145                         sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1146
1147                         hw->wiphy->bands[band] = sband;
1148                 }
1149                 /* By default all radios are belonging to the first group */
1150                 data->group = 1;
1151
1152                 /* Work to be done prior to ieee80211_register_hw() */
1153                 switch (regtest) {
1154                 case HWSIM_REGTEST_DISABLED:
1155                 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
1156                 case HWSIM_REGTEST_DRIVER_REG_ALL:
1157                 case HWSIM_REGTEST_DIFF_COUNTRY:
1158                         /*
1159                          * Nothing to be done for driver regulatory domain
1160                          * hints prior to ieee80211_register_hw()
1161                          */
1162                         break;
1163                 case HWSIM_REGTEST_WORLD_ROAM:
1164                         if (i == 0) {
1165                                 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1166                                 wiphy_apply_custom_regulatory(hw->wiphy,
1167                                         &hwsim_world_regdom_custom_01);
1168                         }
1169                         break;
1170                 case HWSIM_REGTEST_CUSTOM_WORLD:
1171                         hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1172                         wiphy_apply_custom_regulatory(hw->wiphy,
1173                                 &hwsim_world_regdom_custom_01);
1174                         break;
1175                 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1176                         if (i == 0) {
1177                                 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1178                                 wiphy_apply_custom_regulatory(hw->wiphy,
1179                                         &hwsim_world_regdom_custom_01);
1180                         } else if (i == 1) {
1181                                 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1182                                 wiphy_apply_custom_regulatory(hw->wiphy,
1183                                         &hwsim_world_regdom_custom_02);
1184                         }
1185                         break;
1186                 case HWSIM_REGTEST_STRICT_ALL:
1187                         hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
1188                         break;
1189                 case HWSIM_REGTEST_STRICT_FOLLOW:
1190                 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1191                         if (i == 0)
1192                                 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
1193                         break;
1194                 case HWSIM_REGTEST_ALL:
1195                         if (i == 0) {
1196                                 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1197                                 wiphy_apply_custom_regulatory(hw->wiphy,
1198                                         &hwsim_world_regdom_custom_01);
1199                         } else if (i == 1) {
1200                                 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1201                                 wiphy_apply_custom_regulatory(hw->wiphy,
1202                                         &hwsim_world_regdom_custom_02);
1203                         } else if (i == 4)
1204                                 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
1205                         break;
1206                 default:
1207                         break;
1208                 }
1209
1210                 /* give the regulatory workqueue a chance to run */
1211                 if (regtest)
1212                         schedule_timeout_interruptible(1);
1213                 err = ieee80211_register_hw(hw);
1214                 if (err < 0) {
1215                         printk(KERN_DEBUG "mac80211_hwsim: "
1216                                "ieee80211_register_hw failed (%d)\n", err);
1217                         goto failed_hw;
1218                 }
1219
1220                 /* Work to be done after to ieee80211_register_hw() */
1221                 switch (regtest) {
1222                 case HWSIM_REGTEST_WORLD_ROAM:
1223                 case HWSIM_REGTEST_DISABLED:
1224                         break;
1225                 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
1226                         if (!i)
1227                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1228                         break;
1229                 case HWSIM_REGTEST_DRIVER_REG_ALL:
1230                 case HWSIM_REGTEST_STRICT_ALL:
1231                         regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1232                         break;
1233                 case HWSIM_REGTEST_DIFF_COUNTRY:
1234                         if (i < ARRAY_SIZE(hwsim_alpha2s))
1235                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[i]);
1236                         break;
1237                 case HWSIM_REGTEST_CUSTOM_WORLD:
1238                 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1239                         /*
1240                          * Nothing to be done for custom world regulatory
1241                          * domains after to ieee80211_register_hw
1242                          */
1243                         break;
1244                 case HWSIM_REGTEST_STRICT_FOLLOW:
1245                         if (i == 0)
1246                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1247                         break;
1248                 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1249                         if (i == 0)
1250                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1251                         else if (i == 1)
1252                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1253                         break;
1254                 case HWSIM_REGTEST_ALL:
1255                         if (i == 2)
1256                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1257                         else if (i == 3)
1258                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1259                         else if (i == 4)
1260                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[2]);
1261                         break;
1262                 default:
1263                         break;
1264                 }
1265
1266                 printk(KERN_DEBUG "%s: hwaddr %pM registered\n",
1267                        wiphy_name(hw->wiphy),
1268                        hw->wiphy->perm_addr);
1269
1270                 data->debugfs = debugfs_create_dir("hwsim",
1271                                                    hw->wiphy->debugfsdir);
1272                 data->debugfs_ps = debugfs_create_file("ps", 0666,
1273                                                        data->debugfs, data,
1274                                                        &hwsim_fops_ps);
1275                 data->debugfs_group = debugfs_create_file("group", 0666,
1276                                                         data->debugfs, data,
1277                                                         &hwsim_fops_group);
1278
1279                 setup_timer(&data->beacon_timer, mac80211_hwsim_beacon,
1280                             (unsigned long) hw);
1281
1282                 list_add_tail(&data->list, &hwsim_radios);
1283         }
1284
1285         hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
1286         if (hwsim_mon == NULL)
1287                 goto failed;
1288
1289         rtnl_lock();
1290
1291         err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
1292         if (err < 0)
1293                 goto failed_mon;
1294
1295
1296         err = register_netdevice(hwsim_mon);
1297         if (err < 0)
1298                 goto failed_mon;
1299
1300         rtnl_unlock();
1301
1302         return 0;
1303
1304 failed_mon:
1305         rtnl_unlock();
1306         free_netdev(hwsim_mon);
1307         mac80211_hwsim_free();
1308         return err;
1309
1310 failed_hw:
1311         device_unregister(data->dev);
1312 failed_drvdata:
1313         ieee80211_free_hw(hw);
1314 failed:
1315         mac80211_hwsim_free();
1316         return err;
1317 }
1318
1319
1320 static void __exit exit_mac80211_hwsim(void)
1321 {
1322         printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
1323
1324         mac80211_hwsim_free();
1325         unregister_netdev(hwsim_mon);
1326 }
1327
1328
1329 module_init(init_mac80211_hwsim);
1330 module_exit(exit_mac80211_hwsim);