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gpio: pca953x: add support for MAX7315
[firewire-audio.git] / drivers / net / wireless / mac80211_hwsim.c
blob896f532182f06e27ba9ac1669ddd41364883d9a0
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 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 bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
369 struct sk_buff *skb)
370 {
371 switch (data->ps) {
372 case PS_DISABLED:
373 return true;
374 case PS_ENABLED:
375 return false;
376 case PS_AUTO_POLL:
377 /* TODO: accept (some) Beacons by default and other frames only
378 * if pending PS-Poll has been sent */
379 return true;
380 case PS_MANUAL_POLL:
381 /* Allow unicast frames to own address if there is a pending
382 * PS-Poll */
383 if (data->ps_poll_pending &&
384 memcmp(data->hw->wiphy->perm_addr, skb->data + 4,
385 ETH_ALEN) == 0) {
386 data->ps_poll_pending = false;
387 return true;
388 }
389 return false;
390 }
391
392 return true;
393 }
394
395
396 static bool mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
397 struct sk_buff *skb)
398 {
399 struct mac80211_hwsim_data *data = hw->priv, *data2;
400 bool ack = false;
401 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
402 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
403 struct ieee80211_rx_status rx_status;
404
405 memset(&rx_status, 0, sizeof(rx_status));
406 /* TODO: set mactime */
407 rx_status.freq = data->channel->center_freq;
408 rx_status.band = data->channel->band;
409 rx_status.rate_idx = info->control.rates[0].idx;
410 /* TODO: simulate real signal strength (and optional packet loss) */
411 rx_status.signal = -50;
412
413 if (data->ps != PS_DISABLED)
414 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
415
416 /* release the skb's source info */
417 skb_orphan(skb);
418 skb_dst_drop(skb);
419 skb->mark = 0;
420 secpath_reset(skb);
421 nf_reset(skb);
422
423 /* Copy skb to all enabled radios that are on the current frequency */
424 spin_lock(&hwsim_radio_lock);
425 list_for_each_entry(data2, &hwsim_radios, list) {
426 struct sk_buff *nskb;
427
428 if (data == data2)
429 continue;
430
431 if (!data2->started || !hwsim_ps_rx_ok(data2, skb) ||
432 !data->channel || !data2->channel ||
433 data->channel->center_freq != data2->channel->center_freq ||
434 !(data->group & data2->group))
435 continue;
436
437 nskb = skb_copy(skb, GFP_ATOMIC);
438 if (nskb == NULL)
439 continue;
440
441 if (memcmp(hdr->addr1, data2->hw->wiphy->perm_addr,
442 ETH_ALEN) == 0)
443 ack = true;
444 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
445 ieee80211_rx_irqsafe(data2->hw, nskb);
446 }
447 spin_unlock(&hwsim_radio_lock);
448
449 return ack;
450 }
451
452
453 static int mac80211_hwsim_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
454 {
455 bool ack;
456 struct ieee80211_tx_info *txi;
457
458 mac80211_hwsim_monitor_rx(hw, skb);
459
460 if (skb->len < 10) {
461 /* Should not happen; just a sanity check for addr1 use */
462 dev_kfree_skb(skb);
463 return NETDEV_TX_OK;
464 }
465
466 ack = mac80211_hwsim_tx_frame(hw, skb);
467
468 txi = IEEE80211_SKB_CB(skb);
469
470 if (txi->control.vif)
471 hwsim_check_magic(txi->control.vif);
472 if (txi->control.sta)
473 hwsim_check_sta_magic(txi->control.sta);
474
475 ieee80211_tx_info_clear_status(txi);
476 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
477 txi->flags |= IEEE80211_TX_STAT_ACK;
478 ieee80211_tx_status_irqsafe(hw, skb);
479 return NETDEV_TX_OK;
480 }
481
482
483 static int mac80211_hwsim_start(struct ieee80211_hw *hw)
484 {
485 struct mac80211_hwsim_data *data = hw->priv;
486 printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
487 data->started = 1;
488 return 0;
489 }
490
491
492 static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
493 {
494 struct mac80211_hwsim_data *data = hw->priv;
495 data->started = 0;
496 del_timer(&data->beacon_timer);
497 printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
498 }
499
500
501 static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
502 struct ieee80211_if_init_conf *conf)
503 {
504 printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%pM)\n",
505 wiphy_name(hw->wiphy), __func__, conf->type,
506 conf->mac_addr);
507 hwsim_set_magic(conf->vif);
508 return 0;
509 }
510
511
512 static void mac80211_hwsim_remove_interface(
513 struct ieee80211_hw *hw, struct ieee80211_if_init_conf *conf)
514 {
515 printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%pM)\n",
516 wiphy_name(hw->wiphy), __func__, conf->type,
517 conf->mac_addr);
518 hwsim_check_magic(conf->vif);
519 hwsim_clear_magic(conf->vif);
520 }
521
522
523 static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
524 struct ieee80211_vif *vif)
525 {
526 struct ieee80211_hw *hw = arg;
527 struct sk_buff *skb;
528 struct ieee80211_tx_info *info;
529
530 hwsim_check_magic(vif);
531
532 if (vif->type != NL80211_IFTYPE_AP &&
533 vif->type != NL80211_IFTYPE_MESH_POINT)
534 return;
535
536 skb = ieee80211_beacon_get(hw, vif);
537 if (skb == NULL)
538 return;
539 info = IEEE80211_SKB_CB(skb);
540
541 mac80211_hwsim_monitor_rx(hw, skb);
542 mac80211_hwsim_tx_frame(hw, skb);
543 dev_kfree_skb(skb);
544 }
545
546
547 static void mac80211_hwsim_beacon(unsigned long arg)
548 {
549 struct ieee80211_hw *hw = (struct ieee80211_hw *) arg;
550 struct mac80211_hwsim_data *data = hw->priv;
551
552 if (!data->started)
553 return;
554
555 ieee80211_iterate_active_interfaces_atomic(
556 hw, mac80211_hwsim_beacon_tx, hw);
557
558 data->beacon_timer.expires = jiffies + data->beacon_int;
559 add_timer(&data->beacon_timer);
560 }
561
562
563 static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
564 {
565 struct mac80211_hwsim_data *data = hw->priv;
566 struct ieee80211_conf *conf = &hw->conf;
567
568 printk(KERN_DEBUG "%s:%s (freq=%d idle=%d ps=%d)\n",
569 wiphy_name(hw->wiphy), __func__,
570 conf->channel->center_freq,
571 !!(conf->flags & IEEE80211_CONF_IDLE),
572 !!(conf->flags & IEEE80211_CONF_PS));
573
574 data->channel = conf->channel;
575 if (!data->started || !data->beacon_int)
576 del_timer(&data->beacon_timer);
577 else
578 mod_timer(&data->beacon_timer, jiffies + data->beacon_int);
579
580 return 0;
581 }
582
583
584 static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
585 unsigned int changed_flags,
586 unsigned int *total_flags,u64 multicast)
587 {
588 struct mac80211_hwsim_data *data = hw->priv;
589
590 printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
591
592 data->rx_filter = 0;
593 if (*total_flags & FIF_PROMISC_IN_BSS)
594 data->rx_filter |= FIF_PROMISC_IN_BSS;
595 if (*total_flags & FIF_ALLMULTI)
596 data->rx_filter |= FIF_ALLMULTI;
597
598 *total_flags = data->rx_filter;
599 }
600
601 static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
602 struct ieee80211_vif *vif,
603 struct ieee80211_bss_conf *info,
604 u32 changed)
605 {
606 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
607 struct mac80211_hwsim_data *data = hw->priv;
608
609 hwsim_check_magic(vif);
610
611 printk(KERN_DEBUG "%s:%s(changed=0x%x)\n",
612 wiphy_name(hw->wiphy), __func__, changed);
613
614 if (changed & BSS_CHANGED_BSSID) {
615 printk(KERN_DEBUG "%s:%s: BSSID changed: %pM\n",
616 wiphy_name(hw->wiphy), __func__,
617 info->bssid);
618 memcpy(vp->bssid, info->bssid, ETH_ALEN);
619 }
620
621 if (changed & BSS_CHANGED_ASSOC) {
622 printk(KERN_DEBUG " %s: ASSOC: assoc=%d aid=%d\n",
623 wiphy_name(hw->wiphy), info->assoc, info->aid);
624 vp->assoc = info->assoc;
625 vp->aid = info->aid;
626 }
627
628 if (changed & BSS_CHANGED_BEACON_INT) {
629 printk(KERN_DEBUG " %s: BCNINT: %d\n",
630 wiphy_name(hw->wiphy), info->beacon_int);
631 data->beacon_int = 1024 * info->beacon_int / 1000 * HZ / 1000;
632 if (WARN_ON(!data->beacon_int))
633 data->beacon_int = 1;
634 }
635
636 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
637 printk(KERN_DEBUG " %s: ERP_CTS_PROT: %d\n",
638 wiphy_name(hw->wiphy), info->use_cts_prot);
639 }
640
641 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
642 printk(KERN_DEBUG " %s: ERP_PREAMBLE: %d\n",
643 wiphy_name(hw->wiphy), info->use_short_preamble);
644 }
645
646 if (changed & BSS_CHANGED_ERP_SLOT) {
647 printk(KERN_DEBUG " %s: ERP_SLOT: %d\n",
648 wiphy_name(hw->wiphy), info->use_short_slot);
649 }
650
651 if (changed & BSS_CHANGED_HT) {
652 printk(KERN_DEBUG " %s: HT: op_mode=0x%x\n",
653 wiphy_name(hw->wiphy),
654 info->ht_operation_mode);
655 }
656
657 if (changed & BSS_CHANGED_BASIC_RATES) {
658 printk(KERN_DEBUG " %s: BASIC_RATES: 0x%llx\n",
659 wiphy_name(hw->wiphy),
660 (unsigned long long) info->basic_rates);
661 }
662 }
663
664 static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
665 struct ieee80211_vif *vif,
666 enum sta_notify_cmd cmd,
667 struct ieee80211_sta *sta)
668 {
669 hwsim_check_magic(vif);
670 switch (cmd) {
671 case STA_NOTIFY_ADD:
672 hwsim_set_sta_magic(sta);
673 break;
674 case STA_NOTIFY_REMOVE:
675 hwsim_clear_sta_magic(sta);
676 break;
677 case STA_NOTIFY_SLEEP:
678 case STA_NOTIFY_AWAKE:
679 /* TODO: make good use of these flags */
680 break;
681 }
682 }
683
684 static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
685 struct ieee80211_sta *sta,
686 bool set)
687 {
688 hwsim_check_sta_magic(sta);
689 return 0;
690 }
691
692 static int mac80211_hwsim_conf_tx(
693 struct ieee80211_hw *hw, u16 queue,
694 const struct ieee80211_tx_queue_params *params)
695 {
696 printk(KERN_DEBUG "%s:%s (queue=%d txop=%d cw_min=%d cw_max=%d "
697 "aifs=%d)\n",
698 wiphy_name(hw->wiphy), __func__, queue,
699 params->txop, params->cw_min, params->cw_max, params->aifs);
700 return 0;
701 }
702
703 #ifdef CONFIG_NL80211_TESTMODE
704 /*
705 * This section contains example code for using netlink
706 * attributes with the testmode command in nl80211.
707 */
708
709 /* These enums need to be kept in sync with userspace */
710 enum hwsim_testmode_attr {
711 __HWSIM_TM_ATTR_INVALID = 0,
712 HWSIM_TM_ATTR_CMD = 1,
713 HWSIM_TM_ATTR_PS = 2,
714
715 /* keep last */
716 __HWSIM_TM_ATTR_AFTER_LAST,
717 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
718 };
719
720 enum hwsim_testmode_cmd {
721 HWSIM_TM_CMD_SET_PS = 0,
722 HWSIM_TM_CMD_GET_PS = 1,
723 };
724
725 static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
726 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
727 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
728 };
729
730 static int hwsim_fops_ps_write(void *dat, u64 val);
731
732 static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
733 void *data, int len)
734 {
735 struct mac80211_hwsim_data *hwsim = hw->priv;
736 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
737 struct sk_buff *skb;
738 int err, ps;
739
740 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
741 hwsim_testmode_policy);
742 if (err)
743 return err;
744
745 if (!tb[HWSIM_TM_ATTR_CMD])
746 return -EINVAL;
747
748 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
749 case HWSIM_TM_CMD_SET_PS:
750 if (!tb[HWSIM_TM_ATTR_PS])
751 return -EINVAL;
752 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
753 return hwsim_fops_ps_write(hwsim, ps);
754 case HWSIM_TM_CMD_GET_PS:
755 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
756 nla_total_size(sizeof(u32)));
757 if (!skb)
758 return -ENOMEM;
759 NLA_PUT_U32(skb, HWSIM_TM_ATTR_PS, hwsim->ps);
760 return cfg80211_testmode_reply(skb);
761 default:
762 return -EOPNOTSUPP;
763 }
764
765 nla_put_failure:
766 kfree_skb(skb);
767 return -ENOBUFS;
768 }
769 #endif
770
771 static const struct ieee80211_ops mac80211_hwsim_ops =
772 {
773 .tx = mac80211_hwsim_tx,
774 .start = mac80211_hwsim_start,
775 .stop = mac80211_hwsim_stop,
776 .add_interface = mac80211_hwsim_add_interface,
777 .remove_interface = mac80211_hwsim_remove_interface,
778 .config = mac80211_hwsim_config,
779 .configure_filter = mac80211_hwsim_configure_filter,
780 .bss_info_changed = mac80211_hwsim_bss_info_changed,
781 .sta_notify = mac80211_hwsim_sta_notify,
782 .set_tim = mac80211_hwsim_set_tim,
783 .conf_tx = mac80211_hwsim_conf_tx,
784 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
785 };
786
787
788 static void mac80211_hwsim_free(void)
789 {
790 struct list_head tmplist, *i, *tmp;
791 struct mac80211_hwsim_data *data, *tmpdata;
792
793 INIT_LIST_HEAD(&tmplist);
794
795 spin_lock_bh(&hwsim_radio_lock);
796 list_for_each_safe(i, tmp, &hwsim_radios)
797 list_move(i, &tmplist);
798 spin_unlock_bh(&hwsim_radio_lock);
799
800 list_for_each_entry_safe(data, tmpdata, &tmplist, list) {
801 debugfs_remove(data->debugfs_group);
802 debugfs_remove(data->debugfs_ps);
803 debugfs_remove(data->debugfs);
804 ieee80211_unregister_hw(data->hw);
805 device_unregister(data->dev);
806 ieee80211_free_hw(data->hw);
807 }
808 class_destroy(hwsim_class);
809 }
810
811
812 static struct device_driver mac80211_hwsim_driver = {
813 .name = "mac80211_hwsim"
814 };
815
816 static const struct net_device_ops hwsim_netdev_ops = {
817 .ndo_start_xmit = hwsim_mon_xmit,
818 .ndo_change_mtu = eth_change_mtu,
819 .ndo_set_mac_address = eth_mac_addr,
820 .ndo_validate_addr = eth_validate_addr,
821 };
822
823 static void hwsim_mon_setup(struct net_device *dev)
824 {
825 dev->netdev_ops = &hwsim_netdev_ops;
826 dev->destructor = free_netdev;
827 ether_setup(dev);
828 dev->tx_queue_len = 0;
829 dev->type = ARPHRD_IEEE80211_RADIOTAP;
830 memset(dev->dev_addr, 0, ETH_ALEN);
831 dev->dev_addr[0] = 0x12;
832 }
833
834
835 static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
836 {
837 struct mac80211_hwsim_data *data = dat;
838 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
839 struct sk_buff *skb;
840 struct ieee80211_pspoll *pspoll;
841
842 if (!vp->assoc)
843 return;
844
845 printk(KERN_DEBUG "%s:%s: send PS-Poll to %pM for aid %d\n",
846 wiphy_name(data->hw->wiphy), __func__, vp->bssid, vp->aid);
847
848 skb = dev_alloc_skb(sizeof(*pspoll));
849 if (!skb)
850 return;
851 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
852 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
853 IEEE80211_STYPE_PSPOLL |
854 IEEE80211_FCTL_PM);
855 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
856 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
857 memcpy(pspoll->ta, mac, ETH_ALEN);
858 if (!mac80211_hwsim_tx_frame(data->hw, skb))
859 printk(KERN_DEBUG "%s: PS-Poll frame not ack'ed\n", __func__);
860 dev_kfree_skb(skb);
861 }
862
863
864 static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
865 struct ieee80211_vif *vif, int ps)
866 {
867 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
868 struct sk_buff *skb;
869 struct ieee80211_hdr *hdr;
870
871 if (!vp->assoc)
872 return;
873
874 printk(KERN_DEBUG "%s:%s: send data::nullfunc to %pM ps=%d\n",
875 wiphy_name(data->hw->wiphy), __func__, vp->bssid, ps);
876
877 skb = dev_alloc_skb(sizeof(*hdr));
878 if (!skb)
879 return;
880 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
881 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
882 IEEE80211_STYPE_NULLFUNC |
883 (ps ? IEEE80211_FCTL_PM : 0));
884 hdr->duration_id = cpu_to_le16(0);
885 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
886 memcpy(hdr->addr2, mac, ETH_ALEN);
887 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
888 if (!mac80211_hwsim_tx_frame(data->hw, skb))
889 printk(KERN_DEBUG "%s: nullfunc frame not ack'ed\n", __func__);
890 dev_kfree_skb(skb);
891 }
892
893
894 static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
895 struct ieee80211_vif *vif)
896 {
897 struct mac80211_hwsim_data *data = dat;
898 hwsim_send_nullfunc(data, mac, vif, 1);
899 }
900
901
902 static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
903 struct ieee80211_vif *vif)
904 {
905 struct mac80211_hwsim_data *data = dat;
906 hwsim_send_nullfunc(data, mac, vif, 0);
907 }
908
909
910 static int hwsim_fops_ps_read(void *dat, u64 *val)
911 {
912 struct mac80211_hwsim_data *data = dat;
913 *val = data->ps;
914 return 0;
915 }
916
917 static int hwsim_fops_ps_write(void *dat, u64 val)
918 {
919 struct mac80211_hwsim_data *data = dat;
920 enum ps_mode old_ps;
921
922 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
923 val != PS_MANUAL_POLL)
924 return -EINVAL;
925
926 old_ps = data->ps;
927 data->ps = val;
928
929 if (val == PS_MANUAL_POLL) {
930 ieee80211_iterate_active_interfaces(data->hw,
931 hwsim_send_ps_poll, data);
932 data->ps_poll_pending = true;
933 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
934 ieee80211_iterate_active_interfaces(data->hw,
935 hwsim_send_nullfunc_ps,
936 data);
937 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
938 ieee80211_iterate_active_interfaces(data->hw,
939 hwsim_send_nullfunc_no_ps,
940 data);
941 }
942
943 return 0;
944 }
945
946 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
947 "%llu\n");
948
949
950 static int hwsim_fops_group_read(void *dat, u64 *val)
951 {
952 struct mac80211_hwsim_data *data = dat;
953 *val = data->group;
954 return 0;
955 }
956
957 static int hwsim_fops_group_write(void *dat, u64 val)
958 {
959 struct mac80211_hwsim_data *data = dat;
960 data->group = val;
961 return 0;
962 }
963
964 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
965 hwsim_fops_group_read, hwsim_fops_group_write,
966 "%llx\n");
967
968 static int __init init_mac80211_hwsim(void)
969 {
970 int i, err = 0;
971 u8 addr[ETH_ALEN];
972 struct mac80211_hwsim_data *data;
973 struct ieee80211_hw *hw;
974 enum ieee80211_band band;
975
976 if (radios < 1 || radios > 100)
977 return -EINVAL;
978
979 spin_lock_init(&hwsim_radio_lock);
980 INIT_LIST_HEAD(&hwsim_radios);
981
982 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
983 if (IS_ERR(hwsim_class))
984 return PTR_ERR(hwsim_class);
985
986 memset(addr, 0, ETH_ALEN);
987 addr[0] = 0x02;
988
989 for (i = 0; i < radios; i++) {
990 printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
991 i);
992 hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);
993 if (!hw) {
994 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
995 "failed\n");
996 err = -ENOMEM;
997 goto failed;
998 }
999 data = hw->priv;
1000 data->hw = hw;
1001
1002 data->dev = device_create(hwsim_class, NULL, 0, hw,
1003 "hwsim%d", i);
1004 if (IS_ERR(data->dev)) {
1005 printk(KERN_DEBUG
1006 "mac80211_hwsim: device_create "
1007 "failed (%ld)\n", PTR_ERR(data->dev));
1008 err = -ENOMEM;
1009 goto failed_drvdata;
1010 }
1011 data->dev->driver = &mac80211_hwsim_driver;
1012
1013 SET_IEEE80211_DEV(hw, data->dev);
1014 addr[3] = i >> 8;
1015 addr[4] = i;
1016 SET_IEEE80211_PERM_ADDR(hw, addr);
1017
1018 hw->channel_change_time = 1;
1019 hw->queues = 4;
1020 hw->wiphy->interface_modes =
1021 BIT(NL80211_IFTYPE_STATION) |
1022 BIT(NL80211_IFTYPE_AP) |
1023 BIT(NL80211_IFTYPE_MESH_POINT);
1024
1025 hw->flags = IEEE80211_HW_MFP_CAPABLE |
1026 IEEE80211_HW_SIGNAL_DBM;
1027
1028 /* ask mac80211 to reserve space for magic */
1029 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
1030 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
1031
1032 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
1033 sizeof(hwsim_channels_2ghz));
1034 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
1035 sizeof(hwsim_channels_5ghz));
1036 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
1037
1038 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
1039 struct ieee80211_supported_band *sband = &data->bands[band];
1040 switch (band) {
1041 case IEEE80211_BAND_2GHZ:
1042 sband->channels = data->channels_2ghz;
1043 sband->n_channels =
1044 ARRAY_SIZE(hwsim_channels_2ghz);
1045 break;
1046 case IEEE80211_BAND_5GHZ:
1047 sband->channels = data->channels_5ghz;
1048 sband->n_channels =
1049 ARRAY_SIZE(hwsim_channels_5ghz);
1050 break;
1051 default:
1052 break;
1053 }
1054
1055 sband->bitrates = data->rates;
1056 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
1057
1058 sband->ht_cap.ht_supported = true;
1059 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
1060 IEEE80211_HT_CAP_GRN_FLD |
1061 IEEE80211_HT_CAP_SGI_40 |
1062 IEEE80211_HT_CAP_DSSSCCK40;
1063 sband->ht_cap.ampdu_factor = 0x3;
1064 sband->ht_cap.ampdu_density = 0x6;
1065 memset(&sband->ht_cap.mcs, 0,
1066 sizeof(sband->ht_cap.mcs));
1067 sband->ht_cap.mcs.rx_mask[0] = 0xff;
1068 sband->ht_cap.mcs.rx_mask[1] = 0xff;
1069 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1070
1071 hw->wiphy->bands[band] = sband;
1072 }
1073 /* By default all radios are belonging to the first group */
1074 data->group = 1;
1075
1076 /* Work to be done prior to ieee80211_register_hw() */
1077 switch (regtest) {
1078 case HWSIM_REGTEST_DISABLED:
1079 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
1080 case HWSIM_REGTEST_DRIVER_REG_ALL:
1081 case HWSIM_REGTEST_DIFF_COUNTRY:
1082 /*
1083 * Nothing to be done for driver regulatory domain
1084 * hints prior to ieee80211_register_hw()
1085 */
1086 break;
1087 case HWSIM_REGTEST_WORLD_ROAM:
1088 if (i == 0) {
1089 hw->wiphy->custom_regulatory = true;
1090 wiphy_apply_custom_regulatory(hw->wiphy,
1091 &hwsim_world_regdom_custom_01);
1092 }
1093 break;
1094 case HWSIM_REGTEST_CUSTOM_WORLD:
1095 hw->wiphy->custom_regulatory = true;
1096 wiphy_apply_custom_regulatory(hw->wiphy,
1097 &hwsim_world_regdom_custom_01);
1098 break;
1099 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1100 if (i == 0) {
1101 hw->wiphy->custom_regulatory = true;
1102 wiphy_apply_custom_regulatory(hw->wiphy,
1103 &hwsim_world_regdom_custom_01);
1104 } else if (i == 1) {
1105 hw->wiphy->custom_regulatory = true;
1106 wiphy_apply_custom_regulatory(hw->wiphy,
1107 &hwsim_world_regdom_custom_02);
1108 }
1109 break;
1110 case HWSIM_REGTEST_STRICT_ALL:
1111 hw->wiphy->strict_regulatory = true;
1112 break;
1113 case HWSIM_REGTEST_STRICT_FOLLOW:
1114 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1115 if (i == 0)
1116 hw->wiphy->strict_regulatory = true;
1117 break;
1118 case HWSIM_REGTEST_ALL:
1119 if (i == 0) {
1120 hw->wiphy->custom_regulatory = true;
1121 wiphy_apply_custom_regulatory(hw->wiphy,
1122 &hwsim_world_regdom_custom_01);
1123 } else if (i == 1) {
1124 hw->wiphy->custom_regulatory = true;
1125 wiphy_apply_custom_regulatory(hw->wiphy,
1126 &hwsim_world_regdom_custom_02);
1127 } else if (i == 4)
1128 hw->wiphy->strict_regulatory = true;
1129 break;
1130 default:
1131 break;
1132 }
1133
1134 /* give the regulatory workqueue a chance to run */
1135 if (regtest)
1136 schedule_timeout_interruptible(1);
1137 err = ieee80211_register_hw(hw);
1138 if (err < 0) {
1139 printk(KERN_DEBUG "mac80211_hwsim: "
1140 "ieee80211_register_hw failed (%d)\n", err);
1141 goto failed_hw;
1142 }
1143
1144 /* Work to be done after to ieee80211_register_hw() */
1145 switch (regtest) {
1146 case HWSIM_REGTEST_WORLD_ROAM:
1147 case HWSIM_REGTEST_DISABLED:
1148 break;
1149 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
1150 if (!i)
1151 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1152 break;
1153 case HWSIM_REGTEST_DRIVER_REG_ALL:
1154 case HWSIM_REGTEST_STRICT_ALL:
1155 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1156 break;
1157 case HWSIM_REGTEST_DIFF_COUNTRY:
1158 if (i < ARRAY_SIZE(hwsim_alpha2s))
1159 regulatory_hint(hw->wiphy, hwsim_alpha2s[i]);
1160 break;
1161 case HWSIM_REGTEST_CUSTOM_WORLD:
1162 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1163 /*
1164 * Nothing to be done for custom world regulatory
1165 * domains after to ieee80211_register_hw
1166 */
1167 break;
1168 case HWSIM_REGTEST_STRICT_FOLLOW:
1169 if (i == 0)
1170 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1171 break;
1172 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1173 if (i == 0)
1174 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1175 else if (i == 1)
1176 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1177 break;
1178 case HWSIM_REGTEST_ALL:
1179 if (i == 2)
1180 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1181 else if (i == 3)
1182 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1183 else if (i == 4)
1184 regulatory_hint(hw->wiphy, hwsim_alpha2s[2]);
1185 break;
1186 default:
1187 break;
1188 }
1189
1190 printk(KERN_DEBUG "%s: hwaddr %pM registered\n",
1191 wiphy_name(hw->wiphy),
1192 hw->wiphy->perm_addr);
1193
1194 data->debugfs = debugfs_create_dir("hwsim",
1195 hw->wiphy->debugfsdir);
1196 data->debugfs_ps = debugfs_create_file("ps", 0666,
1197 data->debugfs, data,
1198 &hwsim_fops_ps);
1199 data->debugfs_group = debugfs_create_file("group", 0666,
1200 data->debugfs, data,
1201 &hwsim_fops_group);
1202
1203 setup_timer(&data->beacon_timer, mac80211_hwsim_beacon,
1204 (unsigned long) hw);
1205
1206 list_add_tail(&data->list, &hwsim_radios);
1207 }
1208
1209 hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
1210 if (hwsim_mon == NULL)
1211 goto failed;
1212
1213 rtnl_lock();
1214
1215 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
1216 if (err < 0)
1217 goto failed_mon;
1218
1219
1220 err = register_netdevice(hwsim_mon);
1221 if (err < 0)
1222 goto failed_mon;
1223
1224 rtnl_unlock();
1225
1226 return 0;
1227
1228 failed_mon:
1229 rtnl_unlock();
1230 free_netdev(hwsim_mon);
1231 mac80211_hwsim_free();
1232 return err;
1233
1234 failed_hw:
1235 device_unregister(data->dev);
1236 failed_drvdata:
1237 ieee80211_free_hw(hw);
1238 failed:
1239 mac80211_hwsim_free();
1240 return err;
1241 }
1242
1243
1244 static void __exit exit_mac80211_hwsim(void)
1245 {
1246 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
1247
1248 mac80211_hwsim_free();
1249 unregister_netdev(hwsim_mon);
1250 }
1251
1252
1253 module_init(init_mac80211_hwsim);
1254 module_exit(exit_mac80211_hwsim);
AMDTP streaming driver for the Linux FireWire stack (Juju)