projects / deliverable / linux.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
mac80211: introduce flush operation
[deliverable/linux.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 struct mac80211_hwsim_addr_match_data {
440 bool ret;
441 const u8 *addr;
442 };
443
444 static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
445 struct ieee80211_vif *vif)
446 {
447 struct mac80211_hwsim_addr_match_data *md = data;
448 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
449 md->ret = true;
450 }
451
452
453 static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
454 const u8 *addr)
455 {
456 struct mac80211_hwsim_addr_match_data md;
457
458 if (memcmp(addr, data->hw->wiphy->perm_addr, ETH_ALEN) == 0)
459 return true;
460
461 md.ret = false;
462 md.addr = addr;
463 ieee80211_iterate_active_interfaces_atomic(data->hw,
464 mac80211_hwsim_addr_iter,
465 &md);
466
467 return md.ret;
468 }
469
470
471 static bool mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
472 struct sk_buff *skb)
473 {
474 struct mac80211_hwsim_data *data = hw->priv, *data2;
475 bool ack = false;
476 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
477 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
478 struct ieee80211_rx_status rx_status;
479
480 if (data->idle) {
481 printk(KERN_DEBUG "%s: Trying to TX when idle - reject\n",
482 wiphy_name(hw->wiphy));
483 return false;
484 }
485
486 memset(&rx_status, 0, sizeof(rx_status));
487 /* TODO: set mactime */
488 rx_status.freq = data->channel->center_freq;
489 rx_status.band = data->channel->band;
490 rx_status.rate_idx = info->control.rates[0].idx;
491 /* TODO: simulate real signal strength (and optional packet loss) */
492 rx_status.signal = -50;
493
494 if (data->ps != PS_DISABLED)
495 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
496
497 /* release the skb's source info */
498 skb_orphan(skb);
499 skb_dst_drop(skb);
500 skb->mark = 0;
501 secpath_reset(skb);
502 nf_reset(skb);
503
504 /* Copy skb to all enabled radios that are on the current frequency */
505 spin_lock(&hwsim_radio_lock);
506 list_for_each_entry(data2, &hwsim_radios, list) {
507 struct sk_buff *nskb;
508
509 if (data == data2)
510 continue;
511
512 if (data2->idle || !data2->started ||
513 !hwsim_ps_rx_ok(data2, skb) ||
514 !data->channel || !data2->channel ||
515 data->channel->center_freq != data2->channel->center_freq ||
516 !(data->group & data2->group))
517 continue;
518
519 nskb = skb_copy(skb, GFP_ATOMIC);
520 if (nskb == NULL)
521 continue;
522
523 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
524 ack = true;
525 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
526 ieee80211_rx_irqsafe(data2->hw, nskb);
527 }
528 spin_unlock(&hwsim_radio_lock);
529
530 return ack;
531 }
532
533
534 static int mac80211_hwsim_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
535 {
536 bool ack;
537 struct ieee80211_tx_info *txi;
538
539 mac80211_hwsim_monitor_rx(hw, skb);
540
541 if (skb->len < 10) {
542 /* Should not happen; just a sanity check for addr1 use */
543 dev_kfree_skb(skb);
544 return NETDEV_TX_OK;
545 }
546
547 ack = mac80211_hwsim_tx_frame(hw, skb);
548 if (ack && skb->len >= 16) {
549 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
550 mac80211_hwsim_monitor_ack(hw, hdr->addr2);
551 }
552
553 txi = IEEE80211_SKB_CB(skb);
554
555 if (txi->control.vif)
556 hwsim_check_magic(txi->control.vif);
557 if (txi->control.sta)
558 hwsim_check_sta_magic(txi->control.sta);
559
560 ieee80211_tx_info_clear_status(txi);
561 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
562 txi->flags |= IEEE80211_TX_STAT_ACK;
563 ieee80211_tx_status_irqsafe(hw, skb);
564 return NETDEV_TX_OK;
565 }
566
567
568 static int mac80211_hwsim_start(struct ieee80211_hw *hw)
569 {
570 struct mac80211_hwsim_data *data = hw->priv;
571 printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
572 data->started = 1;
573 return 0;
574 }
575
576
577 static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
578 {
579 struct mac80211_hwsim_data *data = hw->priv;
580 data->started = 0;
581 del_timer(&data->beacon_timer);
582 printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
583 }
584
585
586 static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
587 struct ieee80211_if_init_conf *conf)
588 {
589 printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%pM)\n",
590 wiphy_name(hw->wiphy), __func__, conf->type,
591 conf->mac_addr);
592 hwsim_set_magic(conf->vif);
593 return 0;
594 }
595
596
597 static void mac80211_hwsim_remove_interface(
598 struct ieee80211_hw *hw, struct ieee80211_if_init_conf *conf)
599 {
600 printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%pM)\n",
601 wiphy_name(hw->wiphy), __func__, conf->type,
602 conf->mac_addr);
603 hwsim_check_magic(conf->vif);
604 hwsim_clear_magic(conf->vif);
605 }
606
607
608 static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
609 struct ieee80211_vif *vif)
610 {
611 struct ieee80211_hw *hw = arg;
612 struct sk_buff *skb;
613 struct ieee80211_tx_info *info;
614
615 hwsim_check_magic(vif);
616
617 if (vif->type != NL80211_IFTYPE_AP &&
618 vif->type != NL80211_IFTYPE_MESH_POINT)
619 return;
620
621 skb = ieee80211_beacon_get(hw, vif);
622 if (skb == NULL)
623 return;
624 info = IEEE80211_SKB_CB(skb);
625
626 mac80211_hwsim_monitor_rx(hw, skb);
627 mac80211_hwsim_tx_frame(hw, skb);
628 dev_kfree_skb(skb);
629 }
630
631
632 static void mac80211_hwsim_beacon(unsigned long arg)
633 {
634 struct ieee80211_hw *hw = (struct ieee80211_hw *) arg;
635 struct mac80211_hwsim_data *data = hw->priv;
636
637 if (!data->started)
638 return;
639
640 ieee80211_iterate_active_interfaces_atomic(
641 hw, mac80211_hwsim_beacon_tx, hw);
642
643 data->beacon_timer.expires = jiffies + data->beacon_int;
644 add_timer(&data->beacon_timer);
645 }
646
647
648 static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
649 {
650 struct mac80211_hwsim_data *data = hw->priv;
651 struct ieee80211_conf *conf = &hw->conf;
652 static const char *chantypes[4] = {
653 [NL80211_CHAN_NO_HT] = "noht",
654 [NL80211_CHAN_HT20] = "ht20",
655 [NL80211_CHAN_HT40MINUS] = "ht40-",
656 [NL80211_CHAN_HT40PLUS] = "ht40+",
657 };
658 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
659 [IEEE80211_SMPS_AUTOMATIC] = "auto",
660 [IEEE80211_SMPS_OFF] = "off",
661 [IEEE80211_SMPS_STATIC] = "static",
662 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
663 };
664
665 printk(KERN_DEBUG "%s:%s (freq=%d/%s idle=%d ps=%d smps=%s)\n",
666 wiphy_name(hw->wiphy), __func__,
667 conf->channel->center_freq,
668 chantypes[conf->channel_type],
669 !!(conf->flags & IEEE80211_CONF_IDLE),
670 !!(conf->flags & IEEE80211_CONF_PS),
671 smps_modes[conf->smps_mode]);
672
673 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
674
675 data->channel = conf->channel;
676 if (!data->started || !data->beacon_int)
677 del_timer(&data->beacon_timer);
678 else
679 mod_timer(&data->beacon_timer, jiffies + data->beacon_int);
680
681 return 0;
682 }
683
684
685 static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
686 unsigned int changed_flags,
687 unsigned int *total_flags,u64 multicast)
688 {
689 struct mac80211_hwsim_data *data = hw->priv;
690
691 printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
692
693 data->rx_filter = 0;
694 if (*total_flags & FIF_PROMISC_IN_BSS)
695 data->rx_filter |= FIF_PROMISC_IN_BSS;
696 if (*total_flags & FIF_ALLMULTI)
697 data->rx_filter |= FIF_ALLMULTI;
698
699 *total_flags = data->rx_filter;
700 }
701
702 static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
703 struct ieee80211_vif *vif,
704 struct ieee80211_bss_conf *info,
705 u32 changed)
706 {
707 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
708 struct mac80211_hwsim_data *data = hw->priv;
709
710 hwsim_check_magic(vif);
711
712 printk(KERN_DEBUG "%s:%s(changed=0x%x)\n",
713 wiphy_name(hw->wiphy), __func__, changed);
714
715 if (changed & BSS_CHANGED_BSSID) {
716 printk(KERN_DEBUG "%s:%s: BSSID changed: %pM\n",
717 wiphy_name(hw->wiphy), __func__,
718 info->bssid);
719 memcpy(vp->bssid, info->bssid, ETH_ALEN);
720 }
721
722 if (changed & BSS_CHANGED_ASSOC) {
723 printk(KERN_DEBUG " %s: ASSOC: assoc=%d aid=%d\n",
724 wiphy_name(hw->wiphy), info->assoc, info->aid);
725 vp->assoc = info->assoc;
726 vp->aid = info->aid;
727 }
728
729 if (changed & BSS_CHANGED_BEACON_INT) {
730 printk(KERN_DEBUG " %s: BCNINT: %d\n",
731 wiphy_name(hw->wiphy), info->beacon_int);
732 data->beacon_int = 1024 * info->beacon_int / 1000 * HZ / 1000;
733 if (WARN_ON(!data->beacon_int))
734 data->beacon_int = 1;
735 if (data->started)
736 mod_timer(&data->beacon_timer,
737 jiffies + data->beacon_int);
738 }
739
740 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
741 printk(KERN_DEBUG " %s: ERP_CTS_PROT: %d\n",
742 wiphy_name(hw->wiphy), info->use_cts_prot);
743 }
744
745 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
746 printk(KERN_DEBUG " %s: ERP_PREAMBLE: %d\n",
747 wiphy_name(hw->wiphy), info->use_short_preamble);
748 }
749
750 if (changed & BSS_CHANGED_ERP_SLOT) {
751 printk(KERN_DEBUG " %s: ERP_SLOT: %d\n",
752 wiphy_name(hw->wiphy), info->use_short_slot);
753 }
754
755 if (changed & BSS_CHANGED_HT) {
756 printk(KERN_DEBUG " %s: HT: op_mode=0x%x\n",
757 wiphy_name(hw->wiphy),
758 info->ht_operation_mode);
759 }
760
761 if (changed & BSS_CHANGED_BASIC_RATES) {
762 printk(KERN_DEBUG " %s: BASIC_RATES: 0x%llx\n",
763 wiphy_name(hw->wiphy),
764 (unsigned long long) info->basic_rates);
765 }
766 }
767
768 static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
769 struct ieee80211_vif *vif,
770 enum sta_notify_cmd cmd,
771 struct ieee80211_sta *sta)
772 {
773 hwsim_check_magic(vif);
774 switch (cmd) {
775 case STA_NOTIFY_ADD:
776 hwsim_set_sta_magic(sta);
777 break;
778 case STA_NOTIFY_REMOVE:
779 hwsim_clear_sta_magic(sta);
780 break;
781 case STA_NOTIFY_SLEEP:
782 case STA_NOTIFY_AWAKE:
783 /* TODO: make good use of these flags */
784 break;
785 }
786 }
787
788 static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
789 struct ieee80211_sta *sta,
790 bool set)
791 {
792 hwsim_check_sta_magic(sta);
793 return 0;
794 }
795
796 static int mac80211_hwsim_conf_tx(
797 struct ieee80211_hw *hw, u16 queue,
798 const struct ieee80211_tx_queue_params *params)
799 {
800 printk(KERN_DEBUG "%s:%s (queue=%d txop=%d cw_min=%d cw_max=%d "
801 "aifs=%d)\n",
802 wiphy_name(hw->wiphy), __func__, queue,
803 params->txop, params->cw_min, params->cw_max, params->aifs);
804 return 0;
805 }
806
807 #ifdef CONFIG_NL80211_TESTMODE
808 /*
809 * This section contains example code for using netlink
810 * attributes with the testmode command in nl80211.
811 */
812
813 /* These enums need to be kept in sync with userspace */
814 enum hwsim_testmode_attr {
815 __HWSIM_TM_ATTR_INVALID = 0,
816 HWSIM_TM_ATTR_CMD = 1,
817 HWSIM_TM_ATTR_PS = 2,
818
819 /* keep last */
820 __HWSIM_TM_ATTR_AFTER_LAST,
821 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
822 };
823
824 enum hwsim_testmode_cmd {
825 HWSIM_TM_CMD_SET_PS = 0,
826 HWSIM_TM_CMD_GET_PS = 1,
827 };
828
829 static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
830 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
831 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
832 };
833
834 static int hwsim_fops_ps_write(void *dat, u64 val);
835
836 static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
837 void *data, int len)
838 {
839 struct mac80211_hwsim_data *hwsim = hw->priv;
840 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
841 struct sk_buff *skb;
842 int err, ps;
843
844 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
845 hwsim_testmode_policy);
846 if (err)
847 return err;
848
849 if (!tb[HWSIM_TM_ATTR_CMD])
850 return -EINVAL;
851
852 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
853 case HWSIM_TM_CMD_SET_PS:
854 if (!tb[HWSIM_TM_ATTR_PS])
855 return -EINVAL;
856 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
857 return hwsim_fops_ps_write(hwsim, ps);
858 case HWSIM_TM_CMD_GET_PS:
859 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
860 nla_total_size(sizeof(u32)));
861 if (!skb)
862 return -ENOMEM;
863 NLA_PUT_U32(skb, HWSIM_TM_ATTR_PS, hwsim->ps);
864 return cfg80211_testmode_reply(skb);
865 default:
866 return -EOPNOTSUPP;
867 }
868
869 nla_put_failure:
870 kfree_skb(skb);
871 return -ENOBUFS;
872 }
873 #endif
874
875 static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
876 struct ieee80211_vif *vif,
877 enum ieee80211_ampdu_mlme_action action,
878 struct ieee80211_sta *sta, u16 tid, u16 *ssn)
879 {
880 switch (action) {
881 case IEEE80211_AMPDU_TX_START:
882 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
883 break;
884 case IEEE80211_AMPDU_TX_STOP:
885 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
886 break;
887 case IEEE80211_AMPDU_TX_OPERATIONAL:
888 break;
889 case IEEE80211_AMPDU_RX_START:
890 case IEEE80211_AMPDU_RX_STOP:
891 break;
892 default:
893 return -EOPNOTSUPP;
894 }
895
896 return 0;
897 }
898
899 static void mac80211_hwsim_flush(struct ieee80211_hw *hw, bool drop)
900 {
901 /*
902 * In this special case, there's nothing we need to
903 * do because hwsim does transmission synchronously.
904 * In the future, when it does transmissions via
905 * userspace, we may need to do something.
906 */
907 }
908
909
910 static const struct ieee80211_ops mac80211_hwsim_ops =
911 {
912 .tx = mac80211_hwsim_tx,
913 .start = mac80211_hwsim_start,
914 .stop = mac80211_hwsim_stop,
915 .add_interface = mac80211_hwsim_add_interface,
916 .remove_interface = mac80211_hwsim_remove_interface,
917 .config = mac80211_hwsim_config,
918 .configure_filter = mac80211_hwsim_configure_filter,
919 .bss_info_changed = mac80211_hwsim_bss_info_changed,
920 .sta_notify = mac80211_hwsim_sta_notify,
921 .set_tim = mac80211_hwsim_set_tim,
922 .conf_tx = mac80211_hwsim_conf_tx,
923 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
924 .ampdu_action = mac80211_hwsim_ampdu_action,
925 .flush = mac80211_hwsim_flush,
926 };
927
928
929 static void mac80211_hwsim_free(void)
930 {
931 struct list_head tmplist, *i, *tmp;
932 struct mac80211_hwsim_data *data, *tmpdata;
933
934 INIT_LIST_HEAD(&tmplist);
935
936 spin_lock_bh(&hwsim_radio_lock);
937 list_for_each_safe(i, tmp, &hwsim_radios)
938 list_move(i, &tmplist);
939 spin_unlock_bh(&hwsim_radio_lock);
940
941 list_for_each_entry_safe(data, tmpdata, &tmplist, list) {
942 debugfs_remove(data->debugfs_group);
943 debugfs_remove(data->debugfs_ps);
944 debugfs_remove(data->debugfs);
945 ieee80211_unregister_hw(data->hw);
946 device_unregister(data->dev);
947 ieee80211_free_hw(data->hw);
948 }
949 class_destroy(hwsim_class);
950 }
951
952
953 static struct device_driver mac80211_hwsim_driver = {
954 .name = "mac80211_hwsim"
955 };
956
957 static const struct net_device_ops hwsim_netdev_ops = {
958 .ndo_start_xmit = hwsim_mon_xmit,
959 .ndo_change_mtu = eth_change_mtu,
960 .ndo_set_mac_address = eth_mac_addr,
961 .ndo_validate_addr = eth_validate_addr,
962 };
963
964 static void hwsim_mon_setup(struct net_device *dev)
965 {
966 dev->netdev_ops = &hwsim_netdev_ops;
967 dev->destructor = free_netdev;
968 ether_setup(dev);
969 dev->tx_queue_len = 0;
970 dev->type = ARPHRD_IEEE80211_RADIOTAP;
971 memset(dev->dev_addr, 0, ETH_ALEN);
972 dev->dev_addr[0] = 0x12;
973 }
974
975
976 static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
977 {
978 struct mac80211_hwsim_data *data = dat;
979 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
980 struct sk_buff *skb;
981 struct ieee80211_pspoll *pspoll;
982
983 if (!vp->assoc)
984 return;
985
986 printk(KERN_DEBUG "%s:%s: send PS-Poll to %pM for aid %d\n",
987 wiphy_name(data->hw->wiphy), __func__, vp->bssid, vp->aid);
988
989 skb = dev_alloc_skb(sizeof(*pspoll));
990 if (!skb)
991 return;
992 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
993 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
994 IEEE80211_STYPE_PSPOLL |
995 IEEE80211_FCTL_PM);
996 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
997 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
998 memcpy(pspoll->ta, mac, ETH_ALEN);
999 if (!mac80211_hwsim_tx_frame(data->hw, skb))
1000 printk(KERN_DEBUG "%s: PS-Poll frame not ack'ed\n", __func__);
1001 dev_kfree_skb(skb);
1002 }
1003
1004
1005 static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
1006 struct ieee80211_vif *vif, int ps)
1007 {
1008 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1009 struct sk_buff *skb;
1010 struct ieee80211_hdr *hdr;
1011
1012 if (!vp->assoc)
1013 return;
1014
1015 printk(KERN_DEBUG "%s:%s: send data::nullfunc to %pM ps=%d\n",
1016 wiphy_name(data->hw->wiphy), __func__, vp->bssid, ps);
1017
1018 skb = dev_alloc_skb(sizeof(*hdr));
1019 if (!skb)
1020 return;
1021 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
1022 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1023 IEEE80211_STYPE_NULLFUNC |
1024 (ps ? IEEE80211_FCTL_PM : 0));
1025 hdr->duration_id = cpu_to_le16(0);
1026 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
1027 memcpy(hdr->addr2, mac, ETH_ALEN);
1028 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
1029 if (!mac80211_hwsim_tx_frame(data->hw, skb))
1030 printk(KERN_DEBUG "%s: nullfunc frame not ack'ed\n", __func__);
1031 dev_kfree_skb(skb);
1032 }
1033
1034
1035 static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
1036 struct ieee80211_vif *vif)
1037 {
1038 struct mac80211_hwsim_data *data = dat;
1039 hwsim_send_nullfunc(data, mac, vif, 1);
1040 }
1041
1042
1043 static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
1044 struct ieee80211_vif *vif)
1045 {
1046 struct mac80211_hwsim_data *data = dat;
1047 hwsim_send_nullfunc(data, mac, vif, 0);
1048 }
1049
1050
1051 static int hwsim_fops_ps_read(void *dat, u64 *val)
1052 {
1053 struct mac80211_hwsim_data *data = dat;
1054 *val = data->ps;
1055 return 0;
1056 }
1057
1058 static int hwsim_fops_ps_write(void *dat, u64 val)
1059 {
1060 struct mac80211_hwsim_data *data = dat;
1061 enum ps_mode old_ps;
1062
1063 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
1064 val != PS_MANUAL_POLL)
1065 return -EINVAL;
1066
1067 old_ps = data->ps;
1068 data->ps = val;
1069
1070 if (val == PS_MANUAL_POLL) {
1071 ieee80211_iterate_active_interfaces(data->hw,
1072 hwsim_send_ps_poll, data);
1073 data->ps_poll_pending = true;
1074 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
1075 ieee80211_iterate_active_interfaces(data->hw,
1076 hwsim_send_nullfunc_ps,
1077 data);
1078 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
1079 ieee80211_iterate_active_interfaces(data->hw,
1080 hwsim_send_nullfunc_no_ps,
1081 data);
1082 }
1083
1084 return 0;
1085 }
1086
1087 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
1088 "%llu\n");
1089
1090
1091 static int hwsim_fops_group_read(void *dat, u64 *val)
1092 {
1093 struct mac80211_hwsim_data *data = dat;
1094 *val = data->group;
1095 return 0;
1096 }
1097
1098 static int hwsim_fops_group_write(void *dat, u64 val)
1099 {
1100 struct mac80211_hwsim_data *data = dat;
1101 data->group = val;
1102 return 0;
1103 }
1104
1105 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
1106 hwsim_fops_group_read, hwsim_fops_group_write,
1107 "%llx\n");
1108
1109 static int __init init_mac80211_hwsim(void)
1110 {
1111 int i, err = 0;
1112 u8 addr[ETH_ALEN];
1113 struct mac80211_hwsim_data *data;
1114 struct ieee80211_hw *hw;
1115 enum ieee80211_band band;
1116
1117 if (radios < 1 || radios > 100)
1118 return -EINVAL;
1119
1120 spin_lock_init(&hwsim_radio_lock);
1121 INIT_LIST_HEAD(&hwsim_radios);
1122
1123 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
1124 if (IS_ERR(hwsim_class))
1125 return PTR_ERR(hwsim_class);
1126
1127 memset(addr, 0, ETH_ALEN);
1128 addr[0] = 0x02;
1129
1130 for (i = 0; i < radios; i++) {
1131 printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
1132 i);
1133 hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);
1134 if (!hw) {
1135 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
1136 "failed\n");
1137 err = -ENOMEM;
1138 goto failed;
1139 }
1140 data = hw->priv;
1141 data->hw = hw;
1142
1143 data->dev = device_create(hwsim_class, NULL, 0, hw,
1144 "hwsim%d", i);
1145 if (IS_ERR(data->dev)) {
1146 printk(KERN_DEBUG
1147 "mac80211_hwsim: device_create "
1148 "failed (%ld)\n", PTR_ERR(data->dev));
1149 err = -ENOMEM;
1150 goto failed_drvdata;
1151 }
1152 data->dev->driver = &mac80211_hwsim_driver;
1153
1154 SET_IEEE80211_DEV(hw, data->dev);
1155 addr[3] = i >> 8;
1156 addr[4] = i;
1157 SET_IEEE80211_PERM_ADDR(hw, addr);
1158
1159 hw->channel_change_time = 1;
1160 hw->queues = 4;
1161 hw->wiphy->interface_modes =
1162 BIT(NL80211_IFTYPE_STATION) |
1163 BIT(NL80211_IFTYPE_AP) |
1164 BIT(NL80211_IFTYPE_MESH_POINT);
1165
1166 hw->flags = IEEE80211_HW_MFP_CAPABLE |
1167 IEEE80211_HW_SIGNAL_DBM |
1168 IEEE80211_HW_SUPPORTS_STATIC_SMPS |
1169 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS;
1170
1171 /* ask mac80211 to reserve space for magic */
1172 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
1173 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
1174
1175 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
1176 sizeof(hwsim_channels_2ghz));
1177 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
1178 sizeof(hwsim_channels_5ghz));
1179 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
1180
1181 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
1182 struct ieee80211_supported_band *sband = &data->bands[band];
1183 switch (band) {
1184 case IEEE80211_BAND_2GHZ:
1185 sband->channels = data->channels_2ghz;
1186 sband->n_channels =
1187 ARRAY_SIZE(hwsim_channels_2ghz);
1188 sband->bitrates = data->rates;
1189 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
1190 break;
1191 case IEEE80211_BAND_5GHZ:
1192 sband->channels = data->channels_5ghz;
1193 sband->n_channels =
1194 ARRAY_SIZE(hwsim_channels_5ghz);
1195 sband->bitrates = data->rates + 4;
1196 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
1197 break;
1198 default:
1199 break;
1200 }
1201
1202 sband->ht_cap.ht_supported = true;
1203 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
1204 IEEE80211_HT_CAP_GRN_FLD |
1205 IEEE80211_HT_CAP_SGI_40 |
1206 IEEE80211_HT_CAP_DSSSCCK40;
1207 sband->ht_cap.ampdu_factor = 0x3;
1208 sband->ht_cap.ampdu_density = 0x6;
1209 memset(&sband->ht_cap.mcs, 0,
1210 sizeof(sband->ht_cap.mcs));
1211 sband->ht_cap.mcs.rx_mask[0] = 0xff;
1212 sband->ht_cap.mcs.rx_mask[1] = 0xff;
1213 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1214
1215 hw->wiphy->bands[band] = sband;
1216 }
1217 /* By default all radios are belonging to the first group */
1218 data->group = 1;
1219
1220 /* Work to be done prior to ieee80211_register_hw() */
1221 switch (regtest) {
1222 case HWSIM_REGTEST_DISABLED:
1223 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
1224 case HWSIM_REGTEST_DRIVER_REG_ALL:
1225 case HWSIM_REGTEST_DIFF_COUNTRY:
1226 /*
1227 * Nothing to be done for driver regulatory domain
1228 * hints prior to ieee80211_register_hw()
1229 */
1230 break;
1231 case HWSIM_REGTEST_WORLD_ROAM:
1232 if (i == 0) {
1233 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1234 wiphy_apply_custom_regulatory(hw->wiphy,
1235 &hwsim_world_regdom_custom_01);
1236 }
1237 break;
1238 case HWSIM_REGTEST_CUSTOM_WORLD:
1239 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1240 wiphy_apply_custom_regulatory(hw->wiphy,
1241 &hwsim_world_regdom_custom_01);
1242 break;
1243 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1244 if (i == 0) {
1245 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1246 wiphy_apply_custom_regulatory(hw->wiphy,
1247 &hwsim_world_regdom_custom_01);
1248 } else if (i == 1) {
1249 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1250 wiphy_apply_custom_regulatory(hw->wiphy,
1251 &hwsim_world_regdom_custom_02);
1252 }
1253 break;
1254 case HWSIM_REGTEST_STRICT_ALL:
1255 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
1256 break;
1257 case HWSIM_REGTEST_STRICT_FOLLOW:
1258 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1259 if (i == 0)
1260 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
1261 break;
1262 case HWSIM_REGTEST_ALL:
1263 if (i == 0) {
1264 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1265 wiphy_apply_custom_regulatory(hw->wiphy,
1266 &hwsim_world_regdom_custom_01);
1267 } else if (i == 1) {
1268 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1269 wiphy_apply_custom_regulatory(hw->wiphy,
1270 &hwsim_world_regdom_custom_02);
1271 } else if (i == 4)
1272 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
1273 break;
1274 default:
1275 break;
1276 }
1277
1278 /* give the regulatory workqueue a chance to run */
1279 if (regtest)
1280 schedule_timeout_interruptible(1);
1281 err = ieee80211_register_hw(hw);
1282 if (err < 0) {
1283 printk(KERN_DEBUG "mac80211_hwsim: "
1284 "ieee80211_register_hw failed (%d)\n", err);
1285 goto failed_hw;
1286 }
1287
1288 /* Work to be done after to ieee80211_register_hw() */
1289 switch (regtest) {
1290 case HWSIM_REGTEST_WORLD_ROAM:
1291 case HWSIM_REGTEST_DISABLED:
1292 break;
1293 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
1294 if (!i)
1295 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1296 break;
1297 case HWSIM_REGTEST_DRIVER_REG_ALL:
1298 case HWSIM_REGTEST_STRICT_ALL:
1299 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1300 break;
1301 case HWSIM_REGTEST_DIFF_COUNTRY:
1302 if (i < ARRAY_SIZE(hwsim_alpha2s))
1303 regulatory_hint(hw->wiphy, hwsim_alpha2s[i]);
1304 break;
1305 case HWSIM_REGTEST_CUSTOM_WORLD:
1306 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1307 /*
1308 * Nothing to be done for custom world regulatory
1309 * domains after to ieee80211_register_hw
1310 */
1311 break;
1312 case HWSIM_REGTEST_STRICT_FOLLOW:
1313 if (i == 0)
1314 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1315 break;
1316 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1317 if (i == 0)
1318 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1319 else if (i == 1)
1320 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1321 break;
1322 case HWSIM_REGTEST_ALL:
1323 if (i == 2)
1324 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1325 else if (i == 3)
1326 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1327 else if (i == 4)
1328 regulatory_hint(hw->wiphy, hwsim_alpha2s[2]);
1329 break;
1330 default:
1331 break;
1332 }
1333
1334 printk(KERN_DEBUG "%s: hwaddr %pM registered\n",
1335 wiphy_name(hw->wiphy),
1336 hw->wiphy->perm_addr);
1337
1338 data->debugfs = debugfs_create_dir("hwsim",
1339 hw->wiphy->debugfsdir);
1340 data->debugfs_ps = debugfs_create_file("ps", 0666,
1341 data->debugfs, data,
1342 &hwsim_fops_ps);
1343 data->debugfs_group = debugfs_create_file("group", 0666,
1344 data->debugfs, data,
1345 &hwsim_fops_group);
1346
1347 setup_timer(&data->beacon_timer, mac80211_hwsim_beacon,
1348 (unsigned long) hw);
1349
1350 list_add_tail(&data->list, &hwsim_radios);
1351 }
1352
1353 hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
1354 if (hwsim_mon == NULL)
1355 goto failed;
1356
1357 rtnl_lock();
1358
1359 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
1360 if (err < 0)
1361 goto failed_mon;
1362
1363
1364 err = register_netdevice(hwsim_mon);
1365 if (err < 0)
1366 goto failed_mon;
1367
1368 rtnl_unlock();
1369
1370 return 0;
1371
1372 failed_mon:
1373 rtnl_unlock();
1374 free_netdev(hwsim_mon);
1375 mac80211_hwsim_free();
1376 return err;
1377
1378 failed_hw:
1379 device_unregister(data->dev);
1380 failed_drvdata:
1381 ieee80211_free_hw(hw);
1382 failed:
1383 mac80211_hwsim_free();
1384 return err;
1385 }
1386
1387
1388 static void __exit exit_mac80211_hwsim(void)
1389 {
1390 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
1391
1392 mac80211_hwsim_free();
1393 unregister_netdev(hwsim_mon);
1394 }
1395
1396
1397 module_init(init_mac80211_hwsim);
1398 module_exit(exit_mac80211_hwsim);
Linux kernel - Deliverables
This page took 0.061622 seconds and 5 git commands to generate.