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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke...
[nv-tegra-linux-2.6.git] / drivers / net / wireless / mac80211_hwsim.c
blob6ea77e95277ba52d4b04fe58ef38bf76ff16bba6
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 static bool fake_hw_scan;
36 module_param(fake_hw_scan, bool, 0444);
37 MODULE_PARM_DESC(fake_hw_scan, "Install fake (no-op) hw-scan handler");
38
39 /**
40 * enum hwsim_regtest - the type of regulatory tests we offer
41 *
42 * These are the different values you can use for the regtest
43 * module parameter. This is useful to help test world roaming
44 * and the driver regulatory_hint() call and combinations of these.
45 * If you want to do specific alpha2 regulatory domain tests simply
46 * use the userspace regulatory request as that will be respected as
47 * well without the need of this module parameter. This is designed
48 * only for testing the driver regulatory request, world roaming
49 * and all possible combinations.
50 *
51 * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
52 * this is the default value.
53 * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
54 * hint, only one driver regulatory hint will be sent as such the
55 * secondary radios are expected to follow.
56 * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
57 * request with all radios reporting the same regulatory domain.
58 * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
59 * different regulatory domains requests. Expected behaviour is for
60 * an intersection to occur but each device will still use their
61 * respective regulatory requested domains. Subsequent radios will
62 * use the resulting intersection.
63 * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We acomplish
64 * this by using a custom beacon-capable regulatory domain for the first
65 * radio. All other device world roam.
66 * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
67 * domain requests. All radios will adhere to this custom world regulatory
68 * domain.
69 * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
70 * domain requests. The first radio will adhere to the first custom world
71 * regulatory domain, the second one to the second custom world regulatory
72 * domain. All other devices will world roam.
73 * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain
74 * settings, only the first radio will send a regulatory domain request
75 * and use strict settings. The rest of the radios are expected to follow.
76 * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
77 * settings. All radios will adhere to this.
78 * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
79 * domain settings, combined with secondary driver regulatory domain
80 * settings. The first radio will get a strict regulatory domain setting
81 * using the first driver regulatory request and the second radio will use
82 * non-strict settings using the second driver regulatory request. All
83 * other devices should follow the intersection created between the
84 * first two.
85 * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
86 * at least 6 radios for a complete test. We will test in this order:
87 * 1 - driver custom world regulatory domain
88 * 2 - second custom world regulatory domain
89 * 3 - first driver regulatory domain request
90 * 4 - second driver regulatory domain request
91 * 5 - strict regulatory domain settings using the third driver regulatory
92 * domain request
93 * 6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
94 * regulatory requests.
95 */
96 enum hwsim_regtest {
97 HWSIM_REGTEST_DISABLED = 0,
98 HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1,
99 HWSIM_REGTEST_DRIVER_REG_ALL = 2,
100 HWSIM_REGTEST_DIFF_COUNTRY = 3,
101 HWSIM_REGTEST_WORLD_ROAM = 4,
102 HWSIM_REGTEST_CUSTOM_WORLD = 5,
103 HWSIM_REGTEST_CUSTOM_WORLD_2 = 6,
104 HWSIM_REGTEST_STRICT_FOLLOW = 7,
105 HWSIM_REGTEST_STRICT_ALL = 8,
106 HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9,
107 HWSIM_REGTEST_ALL = 10,
108 };
109
110 /* Set to one of the HWSIM_REGTEST_* values above */
111 static int regtest = HWSIM_REGTEST_DISABLED;
112 module_param(regtest, int, 0444);
113 MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run");
114
115 static const char *hwsim_alpha2s[] = {
116 "FI",
117 "AL",
118 "US",
119 "DE",
120 "JP",
121 "AL",
122 };
123
124 static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = {
125 .n_reg_rules = 4,
126 .alpha2 = "99",
127 .reg_rules = {
128 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
129 REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
130 REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
131 REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
132 }
133 };
134
135 static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = {
136 .n_reg_rules = 2,
137 .alpha2 = "99",
138 .reg_rules = {
139 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
140 REG_RULE(5725-10, 5850+10, 40, 0, 30,
141 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
142 }
143 };
144
145 struct hwsim_vif_priv {
146 u32 magic;
147 u8 bssid[ETH_ALEN];
148 bool assoc;
149 u16 aid;
150 };
151
152 #define HWSIM_VIF_MAGIC 0x69537748
153
154 static inline void hwsim_check_magic(struct ieee80211_vif *vif)
155 {
156 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
157 WARN_ON(vp->magic != HWSIM_VIF_MAGIC);
158 }
159
160 static inline void hwsim_set_magic(struct ieee80211_vif *vif)
161 {
162 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
163 vp->magic = HWSIM_VIF_MAGIC;
164 }
165
166 static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
167 {
168 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
169 vp->magic = 0;
170 }
171
172 struct hwsim_sta_priv {
173 u32 magic;
174 };
175
176 #define HWSIM_STA_MAGIC 0x6d537748
177
178 static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
179 {
180 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
181 WARN_ON(sp->magic != HWSIM_STA_MAGIC);
182 }
183
184 static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
185 {
186 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
187 sp->magic = HWSIM_STA_MAGIC;
188 }
189
190 static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
191 {
192 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
193 sp->magic = 0;
194 }
195
196 static struct class *hwsim_class;
197
198 static struct net_device *hwsim_mon; /* global monitor netdev */
199
200 #define CHAN2G(_freq) { \
201 .band = IEEE80211_BAND_2GHZ, \
202 .center_freq = (_freq), \
203 .hw_value = (_freq), \
204 .max_power = 20, \
205 }
206
207 #define CHAN5G(_freq) { \
208 .band = IEEE80211_BAND_5GHZ, \
209 .center_freq = (_freq), \
210 .hw_value = (_freq), \
211 .max_power = 20, \
212 }
213
214 static const struct ieee80211_channel hwsim_channels_2ghz[] = {
215 CHAN2G(2412), /* Channel 1 */
216 CHAN2G(2417), /* Channel 2 */
217 CHAN2G(2422), /* Channel 3 */
218 CHAN2G(2427), /* Channel 4 */
219 CHAN2G(2432), /* Channel 5 */
220 CHAN2G(2437), /* Channel 6 */
221 CHAN2G(2442), /* Channel 7 */
222 CHAN2G(2447), /* Channel 8 */
223 CHAN2G(2452), /* Channel 9 */
224 CHAN2G(2457), /* Channel 10 */
225 CHAN2G(2462), /* Channel 11 */
226 CHAN2G(2467), /* Channel 12 */
227 CHAN2G(2472), /* Channel 13 */
228 CHAN2G(2484), /* Channel 14 */
229 };
230
231 static const struct ieee80211_channel hwsim_channels_5ghz[] = {
232 CHAN5G(5180), /* Channel 36 */
233 CHAN5G(5200), /* Channel 40 */
234 CHAN5G(5220), /* Channel 44 */
235 CHAN5G(5240), /* Channel 48 */
236
237 CHAN5G(5260), /* Channel 52 */
238 CHAN5G(5280), /* Channel 56 */
239 CHAN5G(5300), /* Channel 60 */
240 CHAN5G(5320), /* Channel 64 */
241
242 CHAN5G(5500), /* Channel 100 */
243 CHAN5G(5520), /* Channel 104 */
244 CHAN5G(5540), /* Channel 108 */
245 CHAN5G(5560), /* Channel 112 */
246 CHAN5G(5580), /* Channel 116 */
247 CHAN5G(5600), /* Channel 120 */
248 CHAN5G(5620), /* Channel 124 */
249 CHAN5G(5640), /* Channel 128 */
250 CHAN5G(5660), /* Channel 132 */
251 CHAN5G(5680), /* Channel 136 */
252 CHAN5G(5700), /* Channel 140 */
253
254 CHAN5G(5745), /* Channel 149 */
255 CHAN5G(5765), /* Channel 153 */
256 CHAN5G(5785), /* Channel 157 */
257 CHAN5G(5805), /* Channel 161 */
258 CHAN5G(5825), /* Channel 165 */
259 };
260
261 static const struct ieee80211_rate hwsim_rates[] = {
262 { .bitrate = 10 },
263 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
264 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
265 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
266 { .bitrate = 60 },
267 { .bitrate = 90 },
268 { .bitrate = 120 },
269 { .bitrate = 180 },
270 { .bitrate = 240 },
271 { .bitrate = 360 },
272 { .bitrate = 480 },
273 { .bitrate = 540 }
274 };
275
276 static spinlock_t hwsim_radio_lock;
277 static struct list_head hwsim_radios;
278
279 struct mac80211_hwsim_data {
280 struct list_head list;
281 struct ieee80211_hw *hw;
282 struct device *dev;
283 struct ieee80211_supported_band bands[2];
284 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
285 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
286 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
287
288 struct mac_address addresses[2];
289
290 struct ieee80211_channel *channel;
291 unsigned long beacon_int; /* in jiffies unit */
292 unsigned int rx_filter;
293 bool started, idle;
294 struct timer_list beacon_timer;
295 enum ps_mode {
296 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
297 } ps;
298 bool ps_poll_pending;
299 struct dentry *debugfs;
300 struct dentry *debugfs_ps;
301
302 /*
303 * Only radios in the same group can communicate together (the
304 * channel has to match too). Each bit represents a group. A
305 * radio can be in more then one group.
306 */
307 u64 group;
308 struct dentry *debugfs_group;
309 };
310
311
312 struct hwsim_radiotap_hdr {
313 struct ieee80211_radiotap_header hdr;
314 u8 rt_flags;
315 u8 rt_rate;
316 __le16 rt_channel;
317 __le16 rt_chbitmask;
318 } __attribute__ ((packed));
319
320
321 static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
322 struct net_device *dev)
323 {
324 /* TODO: allow packet injection */
325 dev_kfree_skb(skb);
326 return NETDEV_TX_OK;
327 }
328
329
330 static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
331 struct sk_buff *tx_skb)
332 {
333 struct mac80211_hwsim_data *data = hw->priv;
334 struct sk_buff *skb;
335 struct hwsim_radiotap_hdr *hdr;
336 u16 flags;
337 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
338 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
339
340 if (!netif_running(hwsim_mon))
341 return;
342
343 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
344 if (skb == NULL)
345 return;
346
347 hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
348 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
349 hdr->hdr.it_pad = 0;
350 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
351 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
352 (1 << IEEE80211_RADIOTAP_RATE) |
353 (1 << IEEE80211_RADIOTAP_CHANNEL));
354 hdr->rt_flags = 0;
355 hdr->rt_rate = txrate->bitrate / 5;
356 hdr->rt_channel = cpu_to_le16(data->channel->center_freq);
357 flags = IEEE80211_CHAN_2GHZ;
358 if (txrate->flags & IEEE80211_RATE_ERP_G)
359 flags |= IEEE80211_CHAN_OFDM;
360 else
361 flags |= IEEE80211_CHAN_CCK;
362 hdr->rt_chbitmask = cpu_to_le16(flags);
363
364 skb->dev = hwsim_mon;
365 skb_set_mac_header(skb, 0);
366 skb->ip_summed = CHECKSUM_UNNECESSARY;
367 skb->pkt_type = PACKET_OTHERHOST;
368 skb->protocol = htons(ETH_P_802_2);
369 memset(skb->cb, 0, sizeof(skb->cb));
370 netif_rx(skb);
371 }
372
373
374 static void mac80211_hwsim_monitor_ack(struct ieee80211_hw *hw, const u8 *addr)
375 {
376 struct mac80211_hwsim_data *data = hw->priv;
377 struct sk_buff *skb;
378 struct hwsim_radiotap_hdr *hdr;
379 u16 flags;
380 struct ieee80211_hdr *hdr11;
381
382 if (!netif_running(hwsim_mon))
383 return;
384
385 skb = dev_alloc_skb(100);
386 if (skb == NULL)
387 return;
388
389 hdr = (struct hwsim_radiotap_hdr *) skb_put(skb, sizeof(*hdr));
390 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
391 hdr->hdr.it_pad = 0;
392 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
393 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
394 (1 << IEEE80211_RADIOTAP_CHANNEL));
395 hdr->rt_flags = 0;
396 hdr->rt_rate = 0;
397 hdr->rt_channel = cpu_to_le16(data->channel->center_freq);
398 flags = IEEE80211_CHAN_2GHZ;
399 hdr->rt_chbitmask = cpu_to_le16(flags);
400
401 hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
402 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
403 IEEE80211_STYPE_ACK);
404 hdr11->duration_id = cpu_to_le16(0);
405 memcpy(hdr11->addr1, addr, ETH_ALEN);
406
407 skb->dev = hwsim_mon;
408 skb_set_mac_header(skb, 0);
409 skb->ip_summed = CHECKSUM_UNNECESSARY;
410 skb->pkt_type = PACKET_OTHERHOST;
411 skb->protocol = htons(ETH_P_802_2);
412 memset(skb->cb, 0, sizeof(skb->cb));
413 netif_rx(skb);
414 }
415
416
417 static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
418 struct sk_buff *skb)
419 {
420 switch (data->ps) {
421 case PS_DISABLED:
422 return true;
423 case PS_ENABLED:
424 return false;
425 case PS_AUTO_POLL:
426 /* TODO: accept (some) Beacons by default and other frames only
427 * if pending PS-Poll has been sent */
428 return true;
429 case PS_MANUAL_POLL:
430 /* Allow unicast frames to own address if there is a pending
431 * PS-Poll */
432 if (data->ps_poll_pending &&
433 memcmp(data->hw->wiphy->perm_addr, skb->data + 4,
434 ETH_ALEN) == 0) {
435 data->ps_poll_pending = false;
436 return true;
437 }
438 return false;
439 }
440
441 return true;
442 }
443
444
445 struct mac80211_hwsim_addr_match_data {
446 bool ret;
447 const u8 *addr;
448 };
449
450 static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
451 struct ieee80211_vif *vif)
452 {
453 struct mac80211_hwsim_addr_match_data *md = data;
454 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
455 md->ret = true;
456 }
457
458
459 static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
460 const u8 *addr)
461 {
462 struct mac80211_hwsim_addr_match_data md;
463
464 if (memcmp(addr, data->hw->wiphy->perm_addr, ETH_ALEN) == 0)
465 return true;
466
467 md.ret = false;
468 md.addr = addr;
469 ieee80211_iterate_active_interfaces_atomic(data->hw,
470 mac80211_hwsim_addr_iter,
471 &md);
472
473 return md.ret;
474 }
475
476
477 static bool mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
478 struct sk_buff *skb)
479 {
480 struct mac80211_hwsim_data *data = hw->priv, *data2;
481 bool ack = false;
482 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
483 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
484 struct ieee80211_rx_status rx_status;
485
486 if (data->idle) {
487 printk(KERN_DEBUG "%s: Trying to TX when idle - reject\n",
488 wiphy_name(hw->wiphy));
489 return false;
490 }
491
492 memset(&rx_status, 0, sizeof(rx_status));
493 /* TODO: set mactime */
494 rx_status.freq = data->channel->center_freq;
495 rx_status.band = data->channel->band;
496 rx_status.rate_idx = info->control.rates[0].idx;
497 /* TODO: simulate real signal strength (and optional packet loss) */
498 rx_status.signal = -50;
499
500 if (data->ps != PS_DISABLED)
501 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
502
503 /* release the skb's source info */
504 skb_orphan(skb);
505 skb_dst_drop(skb);
506 skb->mark = 0;
507 secpath_reset(skb);
508 nf_reset(skb);
509
510 /* Copy skb to all enabled radios that are on the current frequency */
511 spin_lock(&hwsim_radio_lock);
512 list_for_each_entry(data2, &hwsim_radios, list) {
513 struct sk_buff *nskb;
514
515 if (data == data2)
516 continue;
517
518 if (data2->idle || !data2->started ||
519 !hwsim_ps_rx_ok(data2, skb) ||
520 !data->channel || !data2->channel ||
521 data->channel->center_freq != data2->channel->center_freq ||
522 !(data->group & data2->group))
523 continue;
524
525 nskb = skb_copy(skb, GFP_ATOMIC);
526 if (nskb == NULL)
527 continue;
528
529 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
530 ack = true;
531 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
532 ieee80211_rx_irqsafe(data2->hw, nskb);
533 }
534 spin_unlock(&hwsim_radio_lock);
535
536 return ack;
537 }
538
539
540 static int mac80211_hwsim_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
541 {
542 bool ack;
543 struct ieee80211_tx_info *txi;
544
545 mac80211_hwsim_monitor_rx(hw, skb);
546
547 if (skb->len < 10) {
548 /* Should not happen; just a sanity check for addr1 use */
549 dev_kfree_skb(skb);
550 return NETDEV_TX_OK;
551 }
552
553 ack = mac80211_hwsim_tx_frame(hw, skb);
554 if (ack && skb->len >= 16) {
555 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
556 mac80211_hwsim_monitor_ack(hw, hdr->addr2);
557 }
558
559 txi = IEEE80211_SKB_CB(skb);
560
561 if (txi->control.vif)
562 hwsim_check_magic(txi->control.vif);
563 if (txi->control.sta)
564 hwsim_check_sta_magic(txi->control.sta);
565
566 ieee80211_tx_info_clear_status(txi);
567 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
568 txi->flags |= IEEE80211_TX_STAT_ACK;
569 ieee80211_tx_status_irqsafe(hw, skb);
570 return NETDEV_TX_OK;
571 }
572
573
574 static int mac80211_hwsim_start(struct ieee80211_hw *hw)
575 {
576 struct mac80211_hwsim_data *data = hw->priv;
577 printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
578 data->started = 1;
579 return 0;
580 }
581
582
583 static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
584 {
585 struct mac80211_hwsim_data *data = hw->priv;
586 data->started = 0;
587 del_timer(&data->beacon_timer);
588 printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
589 }
590
591
592 static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
593 struct ieee80211_vif *vif)
594 {
595 printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%pM)\n",
596 wiphy_name(hw->wiphy), __func__, vif->type,
597 vif->addr);
598 hwsim_set_magic(vif);
599 return 0;
600 }
601
602
603 static void mac80211_hwsim_remove_interface(
604 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
605 {
606 printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%pM)\n",
607 wiphy_name(hw->wiphy), __func__, vif->type,
608 vif->addr);
609 hwsim_check_magic(vif);
610 hwsim_clear_magic(vif);
611 }
612
613
614 static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
615 struct ieee80211_vif *vif)
616 {
617 struct ieee80211_hw *hw = arg;
618 struct sk_buff *skb;
619 struct ieee80211_tx_info *info;
620
621 hwsim_check_magic(vif);
622
623 if (vif->type != NL80211_IFTYPE_AP &&
624 vif->type != NL80211_IFTYPE_MESH_POINT)
625 return;
626
627 skb = ieee80211_beacon_get(hw, vif);
628 if (skb == NULL)
629 return;
630 info = IEEE80211_SKB_CB(skb);
631
632 mac80211_hwsim_monitor_rx(hw, skb);
633 mac80211_hwsim_tx_frame(hw, skb);
634 dev_kfree_skb(skb);
635 }
636
637
638 static void mac80211_hwsim_beacon(unsigned long arg)
639 {
640 struct ieee80211_hw *hw = (struct ieee80211_hw *) arg;
641 struct mac80211_hwsim_data *data = hw->priv;
642
643 if (!data->started)
644 return;
645
646 ieee80211_iterate_active_interfaces_atomic(
647 hw, mac80211_hwsim_beacon_tx, hw);
648
649 data->beacon_timer.expires = jiffies + data->beacon_int;
650 add_timer(&data->beacon_timer);
651 }
652
653
654 static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
655 {
656 struct mac80211_hwsim_data *data = hw->priv;
657 struct ieee80211_conf *conf = &hw->conf;
658 static const char *chantypes[4] = {
659 [NL80211_CHAN_NO_HT] = "noht",
660 [NL80211_CHAN_HT20] = "ht20",
661 [NL80211_CHAN_HT40MINUS] = "ht40-",
662 [NL80211_CHAN_HT40PLUS] = "ht40+",
663 };
664 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
665 [IEEE80211_SMPS_AUTOMATIC] = "auto",
666 [IEEE80211_SMPS_OFF] = "off",
667 [IEEE80211_SMPS_STATIC] = "static",
668 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
669 };
670
671 printk(KERN_DEBUG "%s:%s (freq=%d/%s idle=%d ps=%d smps=%s)\n",
672 wiphy_name(hw->wiphy), __func__,
673 conf->channel->center_freq,
674 chantypes[conf->channel_type],
675 !!(conf->flags & IEEE80211_CONF_IDLE),
676 !!(conf->flags & IEEE80211_CONF_PS),
677 smps_modes[conf->smps_mode]);
678
679 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
680
681 data->channel = conf->channel;
682 if (!data->started || !data->beacon_int)
683 del_timer(&data->beacon_timer);
684 else
685 mod_timer(&data->beacon_timer, jiffies + data->beacon_int);
686
687 return 0;
688 }
689
690
691 static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
692 unsigned int changed_flags,
693 unsigned int *total_flags,u64 multicast)
694 {
695 struct mac80211_hwsim_data *data = hw->priv;
696
697 printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
698
699 data->rx_filter = 0;
700 if (*total_flags & FIF_PROMISC_IN_BSS)
701 data->rx_filter |= FIF_PROMISC_IN_BSS;
702 if (*total_flags & FIF_ALLMULTI)
703 data->rx_filter |= FIF_ALLMULTI;
704
705 *total_flags = data->rx_filter;
706 }
707
708 static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
709 struct ieee80211_vif *vif,
710 struct ieee80211_bss_conf *info,
711 u32 changed)
712 {
713 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
714 struct mac80211_hwsim_data *data = hw->priv;
715
716 hwsim_check_magic(vif);
717
718 printk(KERN_DEBUG "%s:%s(changed=0x%x)\n",
719 wiphy_name(hw->wiphy), __func__, changed);
720
721 if (changed & BSS_CHANGED_BSSID) {
722 printk(KERN_DEBUG "%s:%s: BSSID changed: %pM\n",
723 wiphy_name(hw->wiphy), __func__,
724 info->bssid);
725 memcpy(vp->bssid, info->bssid, ETH_ALEN);
726 }
727
728 if (changed & BSS_CHANGED_ASSOC) {
729 printk(KERN_DEBUG " %s: ASSOC: assoc=%d aid=%d\n",
730 wiphy_name(hw->wiphy), info->assoc, info->aid);
731 vp->assoc = info->assoc;
732 vp->aid = info->aid;
733 }
734
735 if (changed & BSS_CHANGED_BEACON_INT) {
736 printk(KERN_DEBUG " %s: BCNINT: %d\n",
737 wiphy_name(hw->wiphy), info->beacon_int);
738 data->beacon_int = 1024 * info->beacon_int / 1000 * HZ / 1000;
739 if (WARN_ON(!data->beacon_int))
740 data->beacon_int = 1;
741 if (data->started)
742 mod_timer(&data->beacon_timer,
743 jiffies + data->beacon_int);
744 }
745
746 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
747 printk(KERN_DEBUG " %s: ERP_CTS_PROT: %d\n",
748 wiphy_name(hw->wiphy), info->use_cts_prot);
749 }
750
751 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
752 printk(KERN_DEBUG " %s: ERP_PREAMBLE: %d\n",
753 wiphy_name(hw->wiphy), info->use_short_preamble);
754 }
755
756 if (changed & BSS_CHANGED_ERP_SLOT) {
757 printk(KERN_DEBUG " %s: ERP_SLOT: %d\n",
758 wiphy_name(hw->wiphy), info->use_short_slot);
759 }
760
761 if (changed & BSS_CHANGED_HT) {
762 printk(KERN_DEBUG " %s: HT: op_mode=0x%x\n",
763 wiphy_name(hw->wiphy),
764 info->ht_operation_mode);
765 }
766
767 if (changed & BSS_CHANGED_BASIC_RATES) {
768 printk(KERN_DEBUG " %s: BASIC_RATES: 0x%llx\n",
769 wiphy_name(hw->wiphy),
770 (unsigned long long) info->basic_rates);
771 }
772 }
773
774 static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
775 struct ieee80211_vif *vif,
776 struct ieee80211_sta *sta)
777 {
778 hwsim_check_magic(vif);
779 hwsim_set_sta_magic(sta);
780
781 return 0;
782 }
783
784 static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
785 struct ieee80211_vif *vif,
786 struct ieee80211_sta *sta)
787 {
788 hwsim_check_magic(vif);
789 hwsim_clear_sta_magic(sta);
790
791 return 0;
792 }
793
794 static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
795 struct ieee80211_vif *vif,
796 enum sta_notify_cmd cmd,
797 struct ieee80211_sta *sta)
798 {
799 hwsim_check_magic(vif);
800
801 switch (cmd) {
802 case STA_NOTIFY_SLEEP:
803 case STA_NOTIFY_AWAKE:
804 /* TODO: make good use of these flags */
805 break;
806 default:
807 WARN(1, "Invalid sta notify: %d\n", cmd);
808 break;
809 }
810 }
811
812 static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
813 struct ieee80211_sta *sta,
814 bool set)
815 {
816 hwsim_check_sta_magic(sta);
817 return 0;
818 }
819
820 static int mac80211_hwsim_conf_tx(
821 struct ieee80211_hw *hw, u16 queue,
822 const struct ieee80211_tx_queue_params *params)
823 {
824 printk(KERN_DEBUG "%s:%s (queue=%d txop=%d cw_min=%d cw_max=%d "
825 "aifs=%d)\n",
826 wiphy_name(hw->wiphy), __func__, queue,
827 params->txop, params->cw_min, params->cw_max, params->aifs);
828 return 0;
829 }
830
831 #ifdef CONFIG_NL80211_TESTMODE
832 /*
833 * This section contains example code for using netlink
834 * attributes with the testmode command in nl80211.
835 */
836
837 /* These enums need to be kept in sync with userspace */
838 enum hwsim_testmode_attr {
839 __HWSIM_TM_ATTR_INVALID = 0,
840 HWSIM_TM_ATTR_CMD = 1,
841 HWSIM_TM_ATTR_PS = 2,
842
843 /* keep last */
844 __HWSIM_TM_ATTR_AFTER_LAST,
845 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
846 };
847
848 enum hwsim_testmode_cmd {
849 HWSIM_TM_CMD_SET_PS = 0,
850 HWSIM_TM_CMD_GET_PS = 1,
851 };
852
853 static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
854 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
855 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
856 };
857
858 static int hwsim_fops_ps_write(void *dat, u64 val);
859
860 static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
861 void *data, int len)
862 {
863 struct mac80211_hwsim_data *hwsim = hw->priv;
864 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
865 struct sk_buff *skb;
866 int err, ps;
867
868 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
869 hwsim_testmode_policy);
870 if (err)
871 return err;
872
873 if (!tb[HWSIM_TM_ATTR_CMD])
874 return -EINVAL;
875
876 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
877 case HWSIM_TM_CMD_SET_PS:
878 if (!tb[HWSIM_TM_ATTR_PS])
879 return -EINVAL;
880 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
881 return hwsim_fops_ps_write(hwsim, ps);
882 case HWSIM_TM_CMD_GET_PS:
883 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
884 nla_total_size(sizeof(u32)));
885 if (!skb)
886 return -ENOMEM;
887 NLA_PUT_U32(skb, HWSIM_TM_ATTR_PS, hwsim->ps);
888 return cfg80211_testmode_reply(skb);
889 default:
890 return -EOPNOTSUPP;
891 }
892
893 nla_put_failure:
894 kfree_skb(skb);
895 return -ENOBUFS;
896 }
897 #endif
898
899 static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
900 struct ieee80211_vif *vif,
901 enum ieee80211_ampdu_mlme_action action,
902 struct ieee80211_sta *sta, u16 tid, u16 *ssn)
903 {
904 switch (action) {
905 case IEEE80211_AMPDU_TX_START:
906 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
907 break;
908 case IEEE80211_AMPDU_TX_STOP:
909 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
910 break;
911 case IEEE80211_AMPDU_TX_OPERATIONAL:
912 break;
913 case IEEE80211_AMPDU_RX_START:
914 case IEEE80211_AMPDU_RX_STOP:
915 break;
916 default:
917 return -EOPNOTSUPP;
918 }
919
920 return 0;
921 }
922
923 static void mac80211_hwsim_flush(struct ieee80211_hw *hw, bool drop)
924 {
925 /*
926 * In this special case, there's nothing we need to
927 * do because hwsim does transmission synchronously.
928 * In the future, when it does transmissions via
929 * userspace, we may need to do something.
930 */
931 }
932
933 struct hw_scan_done {
934 struct delayed_work w;
935 struct ieee80211_hw *hw;
936 };
937
938 static void hw_scan_done(struct work_struct *work)
939 {
940 struct hw_scan_done *hsd =
941 container_of(work, struct hw_scan_done, w.work);
942
943 ieee80211_scan_completed(hsd->hw, false);
944 kfree(hsd);
945 }
946
947 static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
948 struct cfg80211_scan_request *req)
949 {
950 struct hw_scan_done *hsd = kzalloc(sizeof(*hsd), GFP_KERNEL);
951 int i;
952
953 if (!hsd)
954 return -ENOMEM;
955
956 hsd->hw = hw;
957 INIT_DELAYED_WORK(&hsd->w, hw_scan_done);
958
959 printk(KERN_DEBUG "hwsim scan request\n");
960 for (i = 0; i < req->n_channels; i++)
961 printk(KERN_DEBUG "hwsim scan freq %d\n",
962 req->channels[i]->center_freq);
963
964 ieee80211_queue_delayed_work(hw, &hsd->w, 2 * HZ);
965
966 return 0;
967 }
968
969 static struct ieee80211_ops mac80211_hwsim_ops =
970 {
971 .tx = mac80211_hwsim_tx,
972 .start = mac80211_hwsim_start,
973 .stop = mac80211_hwsim_stop,
974 .add_interface = mac80211_hwsim_add_interface,
975 .remove_interface = mac80211_hwsim_remove_interface,
976 .config = mac80211_hwsim_config,
977 .configure_filter = mac80211_hwsim_configure_filter,
978 .bss_info_changed = mac80211_hwsim_bss_info_changed,
979 .sta_add = mac80211_hwsim_sta_add,
980 .sta_remove = mac80211_hwsim_sta_remove,
981 .sta_notify = mac80211_hwsim_sta_notify,
982 .set_tim = mac80211_hwsim_set_tim,
983 .conf_tx = mac80211_hwsim_conf_tx,
984 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
985 .ampdu_action = mac80211_hwsim_ampdu_action,
986 .flush = mac80211_hwsim_flush,
987 };
988
989
990 static void mac80211_hwsim_free(void)
991 {
992 struct list_head tmplist, *i, *tmp;
993 struct mac80211_hwsim_data *data, *tmpdata;
994
995 INIT_LIST_HEAD(&tmplist);
996
997 spin_lock_bh(&hwsim_radio_lock);
998 list_for_each_safe(i, tmp, &hwsim_radios)
999 list_move(i, &tmplist);
1000 spin_unlock_bh(&hwsim_radio_lock);
1001
1002 list_for_each_entry_safe(data, tmpdata, &tmplist, list) {
1003 debugfs_remove(data->debugfs_group);
1004 debugfs_remove(data->debugfs_ps);
1005 debugfs_remove(data->debugfs);
1006 ieee80211_unregister_hw(data->hw);
1007 device_unregister(data->dev);
1008 ieee80211_free_hw(data->hw);
1009 }
1010 class_destroy(hwsim_class);
1011 }
1012
1013
1014 static struct device_driver mac80211_hwsim_driver = {
1015 .name = "mac80211_hwsim"
1016 };
1017
1018 static const struct net_device_ops hwsim_netdev_ops = {
1019 .ndo_start_xmit = hwsim_mon_xmit,
1020 .ndo_change_mtu = eth_change_mtu,
1021 .ndo_set_mac_address = eth_mac_addr,
1022 .ndo_validate_addr = eth_validate_addr,
1023 };
1024
1025 static void hwsim_mon_setup(struct net_device *dev)
1026 {
1027 dev->netdev_ops = &hwsim_netdev_ops;
1028 dev->destructor = free_netdev;
1029 ether_setup(dev);
1030 dev->tx_queue_len = 0;
1031 dev->type = ARPHRD_IEEE80211_RADIOTAP;
1032 memset(dev->dev_addr, 0, ETH_ALEN);
1033 dev->dev_addr[0] = 0x12;
1034 }
1035
1036
1037 static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
1038 {
1039 struct mac80211_hwsim_data *data = dat;
1040 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1041 struct sk_buff *skb;
1042 struct ieee80211_pspoll *pspoll;
1043
1044 if (!vp->assoc)
1045 return;
1046
1047 printk(KERN_DEBUG "%s:%s: send PS-Poll to %pM for aid %d\n",
1048 wiphy_name(data->hw->wiphy), __func__, vp->bssid, vp->aid);
1049
1050 skb = dev_alloc_skb(sizeof(*pspoll));
1051 if (!skb)
1052 return;
1053 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
1054 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
1055 IEEE80211_STYPE_PSPOLL |
1056 IEEE80211_FCTL_PM);
1057 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
1058 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
1059 memcpy(pspoll->ta, mac, ETH_ALEN);
1060 if (!mac80211_hwsim_tx_frame(data->hw, skb))
1061 printk(KERN_DEBUG "%s: PS-Poll frame not ack'ed\n", __func__);
1062 dev_kfree_skb(skb);
1063 }
1064
1065
1066 static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
1067 struct ieee80211_vif *vif, int ps)
1068 {
1069 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1070 struct sk_buff *skb;
1071 struct ieee80211_hdr *hdr;
1072
1073 if (!vp->assoc)
1074 return;
1075
1076 printk(KERN_DEBUG "%s:%s: send data::nullfunc to %pM ps=%d\n",
1077 wiphy_name(data->hw->wiphy), __func__, vp->bssid, ps);
1078
1079 skb = dev_alloc_skb(sizeof(*hdr));
1080 if (!skb)
1081 return;
1082 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
1083 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1084 IEEE80211_STYPE_NULLFUNC |
1085 (ps ? IEEE80211_FCTL_PM : 0));
1086 hdr->duration_id = cpu_to_le16(0);
1087 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
1088 memcpy(hdr->addr2, mac, ETH_ALEN);
1089 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
1090 if (!mac80211_hwsim_tx_frame(data->hw, skb))
1091 printk(KERN_DEBUG "%s: nullfunc frame not ack'ed\n", __func__);
1092 dev_kfree_skb(skb);
1093 }
1094
1095
1096 static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
1097 struct ieee80211_vif *vif)
1098 {
1099 struct mac80211_hwsim_data *data = dat;
1100 hwsim_send_nullfunc(data, mac, vif, 1);
1101 }
1102
1103
1104 static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
1105 struct ieee80211_vif *vif)
1106 {
1107 struct mac80211_hwsim_data *data = dat;
1108 hwsim_send_nullfunc(data, mac, vif, 0);
1109 }
1110
1111
1112 static int hwsim_fops_ps_read(void *dat, u64 *val)
1113 {
1114 struct mac80211_hwsim_data *data = dat;
1115 *val = data->ps;
1116 return 0;
1117 }
1118
1119 static int hwsim_fops_ps_write(void *dat, u64 val)
1120 {
1121 struct mac80211_hwsim_data *data = dat;
1122 enum ps_mode old_ps;
1123
1124 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
1125 val != PS_MANUAL_POLL)
1126 return -EINVAL;
1127
1128 old_ps = data->ps;
1129 data->ps = val;
1130
1131 if (val == PS_MANUAL_POLL) {
1132 ieee80211_iterate_active_interfaces(data->hw,
1133 hwsim_send_ps_poll, data);
1134 data->ps_poll_pending = true;
1135 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
1136 ieee80211_iterate_active_interfaces(data->hw,
1137 hwsim_send_nullfunc_ps,
1138 data);
1139 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
1140 ieee80211_iterate_active_interfaces(data->hw,
1141 hwsim_send_nullfunc_no_ps,
1142 data);
1143 }
1144
1145 return 0;
1146 }
1147
1148 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
1149 "%llu\n");
1150
1151
1152 static int hwsim_fops_group_read(void *dat, u64 *val)
1153 {
1154 struct mac80211_hwsim_data *data = dat;
1155 *val = data->group;
1156 return 0;
1157 }
1158
1159 static int hwsim_fops_group_write(void *dat, u64 val)
1160 {
1161 struct mac80211_hwsim_data *data = dat;
1162 data->group = val;
1163 return 0;
1164 }
1165
1166 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
1167 hwsim_fops_group_read, hwsim_fops_group_write,
1168 "%llx\n");
1169
1170 static int __init init_mac80211_hwsim(void)
1171 {
1172 int i, err = 0;
1173 u8 addr[ETH_ALEN];
1174 struct mac80211_hwsim_data *data;
1175 struct ieee80211_hw *hw;
1176 enum ieee80211_band band;
1177
1178 if (radios < 1 || radios > 100)
1179 return -EINVAL;
1180
1181 if (fake_hw_scan)
1182 mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan;
1183
1184 spin_lock_init(&hwsim_radio_lock);
1185 INIT_LIST_HEAD(&hwsim_radios);
1186
1187 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
1188 if (IS_ERR(hwsim_class))
1189 return PTR_ERR(hwsim_class);
1190
1191 memset(addr, 0, ETH_ALEN);
1192 addr[0] = 0x02;
1193
1194 for (i = 0; i < radios; i++) {
1195 printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
1196 i);
1197 hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);
1198 if (!hw) {
1199 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
1200 "failed\n");
1201 err = -ENOMEM;
1202 goto failed;
1203 }
1204 data = hw->priv;
1205 data->hw = hw;
1206
1207 data->dev = device_create(hwsim_class, NULL, 0, hw,
1208 "hwsim%d", i);
1209 if (IS_ERR(data->dev)) {
1210 printk(KERN_DEBUG
1211 "mac80211_hwsim: device_create "
1212 "failed (%ld)\n", PTR_ERR(data->dev));
1213 err = -ENOMEM;
1214 goto failed_drvdata;
1215 }
1216 data->dev->driver = &mac80211_hwsim_driver;
1217
1218 SET_IEEE80211_DEV(hw, data->dev);
1219 addr[3] = i >> 8;
1220 addr[4] = i;
1221 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
1222 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
1223 data->addresses[1].addr[0] |= 0x40;
1224 hw->wiphy->n_addresses = 2;
1225 hw->wiphy->addresses = data->addresses;
1226
1227 hw->channel_change_time = 1;
1228 hw->queues = 4;
1229 hw->wiphy->interface_modes =
1230 BIT(NL80211_IFTYPE_STATION) |
1231 BIT(NL80211_IFTYPE_AP) |
1232 BIT(NL80211_IFTYPE_MESH_POINT);
1233
1234 hw->flags = IEEE80211_HW_MFP_CAPABLE |
1235 IEEE80211_HW_SIGNAL_DBM |
1236 IEEE80211_HW_SUPPORTS_STATIC_SMPS |
1237 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS;
1238
1239 /* ask mac80211 to reserve space for magic */
1240 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
1241 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
1242
1243 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
1244 sizeof(hwsim_channels_2ghz));
1245 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
1246 sizeof(hwsim_channels_5ghz));
1247 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
1248
1249 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
1250 struct ieee80211_supported_band *sband = &data->bands[band];
1251 switch (band) {
1252 case IEEE80211_BAND_2GHZ:
1253 sband->channels = data->channels_2ghz;
1254 sband->n_channels =
1255 ARRAY_SIZE(hwsim_channels_2ghz);
1256 sband->bitrates = data->rates;
1257 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
1258 break;
1259 case IEEE80211_BAND_5GHZ:
1260 sband->channels = data->channels_5ghz;
1261 sband->n_channels =
1262 ARRAY_SIZE(hwsim_channels_5ghz);
1263 sband->bitrates = data->rates + 4;
1264 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
1265 break;
1266 default:
1267 break;
1268 }
1269
1270 sband->ht_cap.ht_supported = true;
1271 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
1272 IEEE80211_HT_CAP_GRN_FLD |
1273 IEEE80211_HT_CAP_SGI_40 |
1274 IEEE80211_HT_CAP_DSSSCCK40;
1275 sband->ht_cap.ampdu_factor = 0x3;
1276 sband->ht_cap.ampdu_density = 0x6;
1277 memset(&sband->ht_cap.mcs, 0,
1278 sizeof(sband->ht_cap.mcs));
1279 sband->ht_cap.mcs.rx_mask[0] = 0xff;
1280 sband->ht_cap.mcs.rx_mask[1] = 0xff;
1281 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1282
1283 hw->wiphy->bands[band] = sband;
1284 }
1285 /* By default all radios are belonging to the first group */
1286 data->group = 1;
1287
1288 /* Work to be done prior to ieee80211_register_hw() */
1289 switch (regtest) {
1290 case HWSIM_REGTEST_DISABLED:
1291 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
1292 case HWSIM_REGTEST_DRIVER_REG_ALL:
1293 case HWSIM_REGTEST_DIFF_COUNTRY:
1294 /*
1295 * Nothing to be done for driver regulatory domain
1296 * hints prior to ieee80211_register_hw()
1297 */
1298 break;
1299 case HWSIM_REGTEST_WORLD_ROAM:
1300 if (i == 0) {
1301 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1302 wiphy_apply_custom_regulatory(hw->wiphy,
1303 &hwsim_world_regdom_custom_01);
1304 }
1305 break;
1306 case HWSIM_REGTEST_CUSTOM_WORLD:
1307 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1308 wiphy_apply_custom_regulatory(hw->wiphy,
1309 &hwsim_world_regdom_custom_01);
1310 break;
1311 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1312 if (i == 0) {
1313 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1314 wiphy_apply_custom_regulatory(hw->wiphy,
1315 &hwsim_world_regdom_custom_01);
1316 } else if (i == 1) {
1317 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1318 wiphy_apply_custom_regulatory(hw->wiphy,
1319 &hwsim_world_regdom_custom_02);
1320 }
1321 break;
1322 case HWSIM_REGTEST_STRICT_ALL:
1323 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
1324 break;
1325 case HWSIM_REGTEST_STRICT_FOLLOW:
1326 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1327 if (i == 0)
1328 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
1329 break;
1330 case HWSIM_REGTEST_ALL:
1331 if (i == 0) {
1332 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1333 wiphy_apply_custom_regulatory(hw->wiphy,
1334 &hwsim_world_regdom_custom_01);
1335 } else if (i == 1) {
1336 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1337 wiphy_apply_custom_regulatory(hw->wiphy,
1338 &hwsim_world_regdom_custom_02);
1339 } else if (i == 4)
1340 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
1341 break;
1342 default:
1343 break;
1344 }
1345
1346 /* give the regulatory workqueue a chance to run */
1347 if (regtest)
1348 schedule_timeout_interruptible(1);
1349 err = ieee80211_register_hw(hw);
1350 if (err < 0) {
1351 printk(KERN_DEBUG "mac80211_hwsim: "
1352 "ieee80211_register_hw failed (%d)\n", err);
1353 goto failed_hw;
1354 }
1355
1356 /* Work to be done after to ieee80211_register_hw() */
1357 switch (regtest) {
1358 case HWSIM_REGTEST_WORLD_ROAM:
1359 case HWSIM_REGTEST_DISABLED:
1360 break;
1361 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
1362 if (!i)
1363 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1364 break;
1365 case HWSIM_REGTEST_DRIVER_REG_ALL:
1366 case HWSIM_REGTEST_STRICT_ALL:
1367 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1368 break;
1369 case HWSIM_REGTEST_DIFF_COUNTRY:
1370 if (i < ARRAY_SIZE(hwsim_alpha2s))
1371 regulatory_hint(hw->wiphy, hwsim_alpha2s[i]);
1372 break;
1373 case HWSIM_REGTEST_CUSTOM_WORLD:
1374 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1375 /*
1376 * Nothing to be done for custom world regulatory
1377 * domains after to ieee80211_register_hw
1378 */
1379 break;
1380 case HWSIM_REGTEST_STRICT_FOLLOW:
1381 if (i == 0)
1382 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1383 break;
1384 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1385 if (i == 0)
1386 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1387 else if (i == 1)
1388 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1389 break;
1390 case HWSIM_REGTEST_ALL:
1391 if (i == 2)
1392 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1393 else if (i == 3)
1394 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1395 else if (i == 4)
1396 regulatory_hint(hw->wiphy, hwsim_alpha2s[2]);
1397 break;
1398 default:
1399 break;
1400 }
1401
1402 printk(KERN_DEBUG "%s: hwaddr %pM registered\n",
1403 wiphy_name(hw->wiphy),
1404 hw->wiphy->perm_addr);
1405
1406 data->debugfs = debugfs_create_dir("hwsim",
1407 hw->wiphy->debugfsdir);
1408 data->debugfs_ps = debugfs_create_file("ps", 0666,
1409 data->debugfs, data,
1410 &hwsim_fops_ps);
1411 data->debugfs_group = debugfs_create_file("group", 0666,
1412 data->debugfs, data,
1413 &hwsim_fops_group);
1414
1415 setup_timer(&data->beacon_timer, mac80211_hwsim_beacon,
1416 (unsigned long) hw);
1417
1418 list_add_tail(&data->list, &hwsim_radios);
1419 }
1420
1421 hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
1422 if (hwsim_mon == NULL)
1423 goto failed;
1424
1425 rtnl_lock();
1426
1427 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
1428 if (err < 0)
1429 goto failed_mon;
1430
1431
1432 err = register_netdevice(hwsim_mon);
1433 if (err < 0)
1434 goto failed_mon;
1435
1436 rtnl_unlock();
1437
1438 return 0;
1439
1440 failed_mon:
1441 rtnl_unlock();
1442 free_netdev(hwsim_mon);
1443 mac80211_hwsim_free();
1444 return err;
1445
1446 failed_hw:
1447 device_unregister(data->dev);
1448 failed_drvdata:
1449 ieee80211_free_hw(hw);
1450 failed:
1451 mac80211_hwsim_free();
1452 return err;
1453 }
1454
1455
1456 static void __exit exit_mac80211_hwsim(void)
1457 {
1458 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
1459
1460 mac80211_hwsim_free();
1461 unregister_netdev(hwsim_mon);
1462 }
1463
1464
1465 module_init(init_mac80211_hwsim);
1466 module_exit(exit_mac80211_hwsim);
Mirror of NV Tegra kernel