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ARM: mm: Recreate kernel mappings in early_paging_init()
[linux/fpc-iii.git] / drivers / net / wireless / mac80211_hwsim.c
blob2cd3f54e1efa14652e83691e3353290d17e76939
1 /*
2 * mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211
3 * Copyright (c) 2008, Jouni Malinen <j@w1.fi>
4 * Copyright (c) 2011, Javier Lopez <jlopex@gmail.com>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10
11 /*
12 * TODO:
13 * - Add TSF sync and fix IBSS beacon transmission by adding
14 * competition for "air time" at TBTT
15 * - RX filtering based on filter configuration (data->rx_filter)
16 */
17
18 #include <linux/list.h>
19 #include <linux/slab.h>
20 #include <linux/spinlock.h>
21 #include <net/dst.h>
22 #include <net/xfrm.h>
23 #include <net/mac80211.h>
24 #include <net/ieee80211_radiotap.h>
25 #include <linux/if_arp.h>
26 #include <linux/rtnetlink.h>
27 #include <linux/etherdevice.h>
28 #include <linux/platform_device.h>
29 #include <linux/debugfs.h>
30 #include <linux/module.h>
31 #include <linux/ktime.h>
32 #include <net/genetlink.h>
33 #include "mac80211_hwsim.h"
34
35 #define WARN_QUEUE 100
36 #define MAX_QUEUE 200
37
38 MODULE_AUTHOR("Jouni Malinen");
39 MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
40 MODULE_LICENSE("GPL");
41
42 static u32 wmediumd_portid;
43
44 static int radios = 2;
45 module_param(radios, int, 0444);
46 MODULE_PARM_DESC(radios, "Number of simulated radios");
47
48 static int channels = 1;
49 module_param(channels, int, 0444);
50 MODULE_PARM_DESC(channels, "Number of concurrent channels");
51
52 static bool paged_rx = false;
53 module_param(paged_rx, bool, 0644);
54 MODULE_PARM_DESC(paged_rx, "Use paged SKBs for RX instead of linear ones");
55
56 static bool rctbl = false;
57 module_param(rctbl, bool, 0444);
58 MODULE_PARM_DESC(rctbl, "Handle rate control table");
59
60 /**
61 * enum hwsim_regtest - the type of regulatory tests we offer
62 *
63 * These are the different values you can use for the regtest
64 * module parameter. This is useful to help test world roaming
65 * and the driver regulatory_hint() call and combinations of these.
66 * If you want to do specific alpha2 regulatory domain tests simply
67 * use the userspace regulatory request as that will be respected as
68 * well without the need of this module parameter. This is designed
69 * only for testing the driver regulatory request, world roaming
70 * and all possible combinations.
71 *
72 * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
73 * this is the default value.
74 * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
75 * hint, only one driver regulatory hint will be sent as such the
76 * secondary radios are expected to follow.
77 * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
78 * request with all radios reporting the same regulatory domain.
79 * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
80 * different regulatory domains requests. Expected behaviour is for
81 * an intersection to occur but each device will still use their
82 * respective regulatory requested domains. Subsequent radios will
83 * use the resulting intersection.
84 * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We accomplish
85 * this by using a custom beacon-capable regulatory domain for the first
86 * radio. All other device world roam.
87 * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
88 * domain requests. All radios will adhere to this custom world regulatory
89 * domain.
90 * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
91 * domain requests. The first radio will adhere to the first custom world
92 * regulatory domain, the second one to the second custom world regulatory
93 * domain. All other devices will world roam.
94 * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain
95 * settings, only the first radio will send a regulatory domain request
96 * and use strict settings. The rest of the radios are expected to follow.
97 * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
98 * settings. All radios will adhere to this.
99 * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
100 * domain settings, combined with secondary driver regulatory domain
101 * settings. The first radio will get a strict regulatory domain setting
102 * using the first driver regulatory request and the second radio will use
103 * non-strict settings using the second driver regulatory request. All
104 * other devices should follow the intersection created between the
105 * first two.
106 * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
107 * at least 6 radios for a complete test. We will test in this order:
108 * 1 - driver custom world regulatory domain
109 * 2 - second custom world regulatory domain
110 * 3 - first driver regulatory domain request
111 * 4 - second driver regulatory domain request
112 * 5 - strict regulatory domain settings using the third driver regulatory
113 * domain request
114 * 6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
115 * regulatory requests.
116 */
117 enum hwsim_regtest {
118 HWSIM_REGTEST_DISABLED = 0,
119 HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1,
120 HWSIM_REGTEST_DRIVER_REG_ALL = 2,
121 HWSIM_REGTEST_DIFF_COUNTRY = 3,
122 HWSIM_REGTEST_WORLD_ROAM = 4,
123 HWSIM_REGTEST_CUSTOM_WORLD = 5,
124 HWSIM_REGTEST_CUSTOM_WORLD_2 = 6,
125 HWSIM_REGTEST_STRICT_FOLLOW = 7,
126 HWSIM_REGTEST_STRICT_ALL = 8,
127 HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9,
128 HWSIM_REGTEST_ALL = 10,
129 };
130
131 /* Set to one of the HWSIM_REGTEST_* values above */
132 static int regtest = HWSIM_REGTEST_DISABLED;
133 module_param(regtest, int, 0444);
134 MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run");
135
136 static const char *hwsim_alpha2s[] = {
137 "FI",
138 "AL",
139 "US",
140 "DE",
141 "JP",
142 "AL",
143 };
144
145 static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = {
146 .n_reg_rules = 4,
147 .alpha2 = "99",
148 .reg_rules = {
149 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
150 REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
151 REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
152 REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
153 }
154 };
155
156 static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = {
157 .n_reg_rules = 2,
158 .alpha2 = "99",
159 .reg_rules = {
160 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
161 REG_RULE(5725-10, 5850+10, 40, 0, 30,
162 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
163 }
164 };
165
166 struct hwsim_vif_priv {
167 u32 magic;
168 u8 bssid[ETH_ALEN];
169 bool assoc;
170 u16 aid;
171 };
172
173 #define HWSIM_VIF_MAGIC 0x69537748
174
175 static inline void hwsim_check_magic(struct ieee80211_vif *vif)
176 {
177 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
178 WARN(vp->magic != HWSIM_VIF_MAGIC,
179 "Invalid VIF (%p) magic %#x, %pM, %d/%d\n",
180 vif, vp->magic, vif->addr, vif->type, vif->p2p);
181 }
182
183 static inline void hwsim_set_magic(struct ieee80211_vif *vif)
184 {
185 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
186 vp->magic = HWSIM_VIF_MAGIC;
187 }
188
189 static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
190 {
191 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
192 vp->magic = 0;
193 }
194
195 struct hwsim_sta_priv {
196 u32 magic;
197 };
198
199 #define HWSIM_STA_MAGIC 0x6d537749
200
201 static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
202 {
203 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
204 WARN_ON(sp->magic != HWSIM_STA_MAGIC);
205 }
206
207 static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
208 {
209 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
210 sp->magic = HWSIM_STA_MAGIC;
211 }
212
213 static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
214 {
215 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
216 sp->magic = 0;
217 }
218
219 struct hwsim_chanctx_priv {
220 u32 magic;
221 };
222
223 #define HWSIM_CHANCTX_MAGIC 0x6d53774a
224
225 static inline void hwsim_check_chanctx_magic(struct ieee80211_chanctx_conf *c)
226 {
227 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
228 WARN_ON(cp->magic != HWSIM_CHANCTX_MAGIC);
229 }
230
231 static inline void hwsim_set_chanctx_magic(struct ieee80211_chanctx_conf *c)
232 {
233 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
234 cp->magic = HWSIM_CHANCTX_MAGIC;
235 }
236
237 static inline void hwsim_clear_chanctx_magic(struct ieee80211_chanctx_conf *c)
238 {
239 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
240 cp->magic = 0;
241 }
242
243 static struct class *hwsim_class;
244
245 static struct net_device *hwsim_mon; /* global monitor netdev */
246
247 #define CHAN2G(_freq) { \
248 .band = IEEE80211_BAND_2GHZ, \
249 .center_freq = (_freq), \
250 .hw_value = (_freq), \
251 .max_power = 20, \
252 }
253
254 #define CHAN5G(_freq) { \
255 .band = IEEE80211_BAND_5GHZ, \
256 .center_freq = (_freq), \
257 .hw_value = (_freq), \
258 .max_power = 20, \
259 }
260
261 static const struct ieee80211_channel hwsim_channels_2ghz[] = {
262 CHAN2G(2412), /* Channel 1 */
263 CHAN2G(2417), /* Channel 2 */
264 CHAN2G(2422), /* Channel 3 */
265 CHAN2G(2427), /* Channel 4 */
266 CHAN2G(2432), /* Channel 5 */
267 CHAN2G(2437), /* Channel 6 */
268 CHAN2G(2442), /* Channel 7 */
269 CHAN2G(2447), /* Channel 8 */
270 CHAN2G(2452), /* Channel 9 */
271 CHAN2G(2457), /* Channel 10 */
272 CHAN2G(2462), /* Channel 11 */
273 CHAN2G(2467), /* Channel 12 */
274 CHAN2G(2472), /* Channel 13 */
275 CHAN2G(2484), /* Channel 14 */
276 };
277
278 static const struct ieee80211_channel hwsim_channels_5ghz[] = {
279 CHAN5G(5180), /* Channel 36 */
280 CHAN5G(5200), /* Channel 40 */
281 CHAN5G(5220), /* Channel 44 */
282 CHAN5G(5240), /* Channel 48 */
283
284 CHAN5G(5260), /* Channel 52 */
285 CHAN5G(5280), /* Channel 56 */
286 CHAN5G(5300), /* Channel 60 */
287 CHAN5G(5320), /* Channel 64 */
288
289 CHAN5G(5500), /* Channel 100 */
290 CHAN5G(5520), /* Channel 104 */
291 CHAN5G(5540), /* Channel 108 */
292 CHAN5G(5560), /* Channel 112 */
293 CHAN5G(5580), /* Channel 116 */
294 CHAN5G(5600), /* Channel 120 */
295 CHAN5G(5620), /* Channel 124 */
296 CHAN5G(5640), /* Channel 128 */
297 CHAN5G(5660), /* Channel 132 */
298 CHAN5G(5680), /* Channel 136 */
299 CHAN5G(5700), /* Channel 140 */
300
301 CHAN5G(5745), /* Channel 149 */
302 CHAN5G(5765), /* Channel 153 */
303 CHAN5G(5785), /* Channel 157 */
304 CHAN5G(5805), /* Channel 161 */
305 CHAN5G(5825), /* Channel 165 */
306 };
307
308 static const struct ieee80211_rate hwsim_rates[] = {
309 { .bitrate = 10 },
310 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
311 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
312 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
313 { .bitrate = 60 },
314 { .bitrate = 90 },
315 { .bitrate = 120 },
316 { .bitrate = 180 },
317 { .bitrate = 240 },
318 { .bitrate = 360 },
319 { .bitrate = 480 },
320 { .bitrate = 540 }
321 };
322
323 static spinlock_t hwsim_radio_lock;
324 static struct list_head hwsim_radios;
325
326 struct mac80211_hwsim_data {
327 struct list_head list;
328 struct ieee80211_hw *hw;
329 struct device *dev;
330 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
331 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
332 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
333 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
334
335 struct mac_address addresses[2];
336
337 struct ieee80211_channel *tmp_chan;
338 struct delayed_work roc_done;
339 struct delayed_work hw_scan;
340 struct cfg80211_scan_request *hw_scan_request;
341 struct ieee80211_vif *hw_scan_vif;
342 int scan_chan_idx;
343
344 struct ieee80211_channel *channel;
345 u64 beacon_int /* beacon interval in us */;
346 unsigned int rx_filter;
347 bool started, idle, scanning;
348 struct mutex mutex;
349 struct tasklet_hrtimer beacon_timer;
350 enum ps_mode {
351 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
352 } ps;
353 bool ps_poll_pending;
354 struct dentry *debugfs;
355 struct dentry *debugfs_ps;
356
357 struct sk_buff_head pending; /* packets pending */
358 /*
359 * Only radios in the same group can communicate together (the
360 * channel has to match too). Each bit represents a group. A
361 * radio can be in more then one group.
362 */
363 u64 group;
364 struct dentry *debugfs_group;
365
366 int power_level;
367
368 /* difference between this hw's clock and the real clock, in usecs */
369 s64 tsf_offset;
370 s64 bcn_delta;
371 /* absolute beacon transmission time. Used to cover up "tx" delay. */
372 u64 abs_bcn_ts;
373 };
374
375
376 struct hwsim_radiotap_hdr {
377 struct ieee80211_radiotap_header hdr;
378 __le64 rt_tsft;
379 u8 rt_flags;
380 u8 rt_rate;
381 __le16 rt_channel;
382 __le16 rt_chbitmask;
383 } __packed;
384
385 /* MAC80211_HWSIM netlinf family */
386 static struct genl_family hwsim_genl_family = {
387 .id = GENL_ID_GENERATE,
388 .hdrsize = 0,
389 .name = "MAC80211_HWSIM",
390 .version = 1,
391 .maxattr = HWSIM_ATTR_MAX,
392 };
393
394 /* MAC80211_HWSIM netlink policy */
395
396 static struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
397 [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC,
398 .len = 6*sizeof(u8) },
399 [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC,
400 .len = 6*sizeof(u8) },
401 [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
402 .len = IEEE80211_MAX_DATA_LEN },
403 [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
404 [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
405 [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
406 [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC,
407 .len = IEEE80211_TX_MAX_RATES*sizeof(
408 struct hwsim_tx_rate)},
409 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
410 };
411
412 static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
413 struct net_device *dev)
414 {
415 /* TODO: allow packet injection */
416 dev_kfree_skb(skb);
417 return NETDEV_TX_OK;
418 }
419
420 static inline u64 mac80211_hwsim_get_tsf_raw(void)
421 {
422 return ktime_to_us(ktime_get_real());
423 }
424
425 static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
426 {
427 u64 now = mac80211_hwsim_get_tsf_raw();
428 return cpu_to_le64(now + data->tsf_offset);
429 }
430
431 static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
432 struct ieee80211_vif *vif)
433 {
434 struct mac80211_hwsim_data *data = hw->priv;
435 return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
436 }
437
438 static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
439 struct ieee80211_vif *vif, u64 tsf)
440 {
441 struct mac80211_hwsim_data *data = hw->priv;
442 u64 now = mac80211_hwsim_get_tsf(hw, vif);
443 u32 bcn_int = data->beacon_int;
444 s64 delta = tsf - now;
445
446 data->tsf_offset += delta;
447 /* adjust after beaconing with new timestamp at old TBTT */
448 data->bcn_delta = do_div(delta, bcn_int);
449 }
450
451 static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
452 struct sk_buff *tx_skb,
453 struct ieee80211_channel *chan)
454 {
455 struct mac80211_hwsim_data *data = hw->priv;
456 struct sk_buff *skb;
457 struct hwsim_radiotap_hdr *hdr;
458 u16 flags;
459 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
460 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
461
462 if (!netif_running(hwsim_mon))
463 return;
464
465 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
466 if (skb == NULL)
467 return;
468
469 hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
470 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
471 hdr->hdr.it_pad = 0;
472 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
473 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
474 (1 << IEEE80211_RADIOTAP_RATE) |
475 (1 << IEEE80211_RADIOTAP_TSFT) |
476 (1 << IEEE80211_RADIOTAP_CHANNEL));
477 hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
478 hdr->rt_flags = 0;
479 hdr->rt_rate = txrate->bitrate / 5;
480 hdr->rt_channel = cpu_to_le16(chan->center_freq);
481 flags = IEEE80211_CHAN_2GHZ;
482 if (txrate->flags & IEEE80211_RATE_ERP_G)
483 flags |= IEEE80211_CHAN_OFDM;
484 else
485 flags |= IEEE80211_CHAN_CCK;
486 hdr->rt_chbitmask = cpu_to_le16(flags);
487
488 skb->dev = hwsim_mon;
489 skb_set_mac_header(skb, 0);
490 skb->ip_summed = CHECKSUM_UNNECESSARY;
491 skb->pkt_type = PACKET_OTHERHOST;
492 skb->protocol = htons(ETH_P_802_2);
493 memset(skb->cb, 0, sizeof(skb->cb));
494 netif_rx(skb);
495 }
496
497
498 static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
499 const u8 *addr)
500 {
501 struct sk_buff *skb;
502 struct hwsim_radiotap_hdr *hdr;
503 u16 flags;
504 struct ieee80211_hdr *hdr11;
505
506 if (!netif_running(hwsim_mon))
507 return;
508
509 skb = dev_alloc_skb(100);
510 if (skb == NULL)
511 return;
512
513 hdr = (struct hwsim_radiotap_hdr *) skb_put(skb, sizeof(*hdr));
514 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
515 hdr->hdr.it_pad = 0;
516 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
517 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
518 (1 << IEEE80211_RADIOTAP_CHANNEL));
519 hdr->rt_flags = 0;
520 hdr->rt_rate = 0;
521 hdr->rt_channel = cpu_to_le16(chan->center_freq);
522 flags = IEEE80211_CHAN_2GHZ;
523 hdr->rt_chbitmask = cpu_to_le16(flags);
524
525 hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
526 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
527 IEEE80211_STYPE_ACK);
528 hdr11->duration_id = cpu_to_le16(0);
529 memcpy(hdr11->addr1, addr, ETH_ALEN);
530
531 skb->dev = hwsim_mon;
532 skb_set_mac_header(skb, 0);
533 skb->ip_summed = CHECKSUM_UNNECESSARY;
534 skb->pkt_type = PACKET_OTHERHOST;
535 skb->protocol = htons(ETH_P_802_2);
536 memset(skb->cb, 0, sizeof(skb->cb));
537 netif_rx(skb);
538 }
539
540
541 static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
542 struct sk_buff *skb)
543 {
544 switch (data->ps) {
545 case PS_DISABLED:
546 return true;
547 case PS_ENABLED:
548 return false;
549 case PS_AUTO_POLL:
550 /* TODO: accept (some) Beacons by default and other frames only
551 * if pending PS-Poll has been sent */
552 return true;
553 case PS_MANUAL_POLL:
554 /* Allow unicast frames to own address if there is a pending
555 * PS-Poll */
556 if (data->ps_poll_pending &&
557 memcmp(data->hw->wiphy->perm_addr, skb->data + 4,
558 ETH_ALEN) == 0) {
559 data->ps_poll_pending = false;
560 return true;
561 }
562 return false;
563 }
564
565 return true;
566 }
567
568
569 struct mac80211_hwsim_addr_match_data {
570 bool ret;
571 const u8 *addr;
572 };
573
574 static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
575 struct ieee80211_vif *vif)
576 {
577 struct mac80211_hwsim_addr_match_data *md = data;
578 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
579 md->ret = true;
580 }
581
582
583 static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
584 const u8 *addr)
585 {
586 struct mac80211_hwsim_addr_match_data md;
587
588 if (memcmp(addr, data->hw->wiphy->perm_addr, ETH_ALEN) == 0)
589 return true;
590
591 md.ret = false;
592 md.addr = addr;
593 ieee80211_iterate_active_interfaces_atomic(data->hw,
594 IEEE80211_IFACE_ITER_NORMAL,
595 mac80211_hwsim_addr_iter,
596 &md);
597
598 return md.ret;
599 }
600
601 static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
602 struct sk_buff *my_skb,
603 int dst_portid)
604 {
605 struct sk_buff *skb;
606 struct mac80211_hwsim_data *data = hw->priv;
607 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
608 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
609 void *msg_head;
610 unsigned int hwsim_flags = 0;
611 int i;
612 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
613
614 if (data->ps != PS_DISABLED)
615 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
616 /* If the queue contains MAX_QUEUE skb's drop some */
617 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
618 /* Droping until WARN_QUEUE level */
619 while (skb_queue_len(&data->pending) >= WARN_QUEUE)
620 skb_dequeue(&data->pending);
621 }
622
623 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
624 if (skb == NULL)
625 goto nla_put_failure;
626
627 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
628 HWSIM_CMD_FRAME);
629 if (msg_head == NULL) {
630 printk(KERN_DEBUG "mac80211_hwsim: problem with msg_head\n");
631 goto nla_put_failure;
632 }
633
634 if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
635 sizeof(struct mac_address), data->addresses[1].addr))
636 goto nla_put_failure;
637
638 /* We get the skb->data */
639 if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
640 goto nla_put_failure;
641
642 /* We get the flags for this transmission, and we translate them to
643 wmediumd flags */
644
645 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
646 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
647
648 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
649 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
650
651 if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
652 goto nla_put_failure;
653
654 /* We get the tx control (rate and retries) info*/
655
656 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
657 tx_attempts[i].idx = info->status.rates[i].idx;
658 tx_attempts[i].count = info->status.rates[i].count;
659 }
660
661 if (nla_put(skb, HWSIM_ATTR_TX_INFO,
662 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
663 tx_attempts))
664 goto nla_put_failure;
665
666 /* We create a cookie to identify this skb */
667 if (nla_put_u64(skb, HWSIM_ATTR_COOKIE, (unsigned long) my_skb))
668 goto nla_put_failure;
669
670 genlmsg_end(skb, msg_head);
671 genlmsg_unicast(&init_net, skb, dst_portid);
672
673 /* Enqueue the packet */
674 skb_queue_tail(&data->pending, my_skb);
675 return;
676
677 nla_put_failure:
678 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
679 }
680
681 static bool hwsim_chans_compat(struct ieee80211_channel *c1,
682 struct ieee80211_channel *c2)
683 {
684 if (!c1 || !c2)
685 return false;
686
687 return c1->center_freq == c2->center_freq;
688 }
689
690 struct tx_iter_data {
691 struct ieee80211_channel *channel;
692 bool receive;
693 };
694
695 static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
696 struct ieee80211_vif *vif)
697 {
698 struct tx_iter_data *data = _data;
699
700 if (!vif->chanctx_conf)
701 return;
702
703 if (!hwsim_chans_compat(data->channel,
704 rcu_dereference(vif->chanctx_conf)->def.chan))
705 return;
706
707 data->receive = true;
708 }
709
710 static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
711 struct sk_buff *skb,
712 struct ieee80211_channel *chan)
713 {
714 struct mac80211_hwsim_data *data = hw->priv, *data2;
715 bool ack = false;
716 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
717 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
718 struct ieee80211_rx_status rx_status;
719 u64 now;
720
721 memset(&rx_status, 0, sizeof(rx_status));
722 rx_status.flag |= RX_FLAG_MACTIME_START;
723 rx_status.freq = chan->center_freq;
724 rx_status.band = chan->band;
725 if (info->control.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) {
726 rx_status.rate_idx =
727 ieee80211_rate_get_vht_mcs(&info->control.rates[0]);
728 rx_status.vht_nss =
729 ieee80211_rate_get_vht_nss(&info->control.rates[0]);
730 rx_status.flag |= RX_FLAG_VHT;
731 } else {
732 rx_status.rate_idx = info->control.rates[0].idx;
733 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
734 rx_status.flag |= RX_FLAG_HT;
735 }
736 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
737 rx_status.flag |= RX_FLAG_40MHZ;
738 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
739 rx_status.flag |= RX_FLAG_SHORT_GI;
740 /* TODO: simulate real signal strength (and optional packet loss) */
741 rx_status.signal = data->power_level - 50;
742
743 if (data->ps != PS_DISABLED)
744 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
745
746 /* release the skb's source info */
747 skb_orphan(skb);
748 skb_dst_drop(skb);
749 skb->mark = 0;
750 secpath_reset(skb);
751 nf_reset(skb);
752
753 /*
754 * Get absolute mactime here so all HWs RX at the "same time", and
755 * absolute TX time for beacon mactime so the timestamp matches.
756 * Giving beacons a different mactime than non-beacons looks messy, but
757 * it helps the Toffset be exact and a ~10us mactime discrepancy
758 * probably doesn't really matter.
759 */
760 if (ieee80211_is_beacon(hdr->frame_control) ||
761 ieee80211_is_probe_resp(hdr->frame_control))
762 now = data->abs_bcn_ts;
763 else
764 now = mac80211_hwsim_get_tsf_raw();
765
766 /* Copy skb to all enabled radios that are on the current frequency */
767 spin_lock(&hwsim_radio_lock);
768 list_for_each_entry(data2, &hwsim_radios, list) {
769 struct sk_buff *nskb;
770 struct tx_iter_data tx_iter_data = {
771 .receive = false,
772 .channel = chan,
773 };
774
775 if (data == data2)
776 continue;
777
778 if (!data2->started || (data2->idle && !data2->tmp_chan) ||
779 !hwsim_ps_rx_ok(data2, skb))
780 continue;
781
782 if (!(data->group & data2->group))
783 continue;
784
785 if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
786 !hwsim_chans_compat(chan, data2->channel)) {
787 ieee80211_iterate_active_interfaces_atomic(
788 data2->hw, IEEE80211_IFACE_ITER_NORMAL,
789 mac80211_hwsim_tx_iter, &tx_iter_data);
790 if (!tx_iter_data.receive)
791 continue;
792 }
793
794 /*
795 * reserve some space for our vendor and the normal
796 * radiotap header, since we're copying anyway
797 */
798 if (skb->len < PAGE_SIZE && paged_rx) {
799 struct page *page = alloc_page(GFP_ATOMIC);
800
801 if (!page)
802 continue;
803
804 nskb = dev_alloc_skb(128);
805 if (!nskb) {
806 __free_page(page);
807 continue;
808 }
809
810 memcpy(page_address(page), skb->data, skb->len);
811 skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
812 } else {
813 nskb = skb_copy(skb, GFP_ATOMIC);
814 if (!nskb)
815 continue;
816 }
817
818 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
819 ack = true;
820
821 rx_status.mactime = now + data2->tsf_offset;
822 #if 0
823 /*
824 * Don't enable this code by default as the OUI 00:00:00
825 * is registered to Xerox so we shouldn't use it here, it
826 * might find its way into pcap files.
827 * Note that this code requires the headroom in the SKB
828 * that was allocated earlier.
829 */
830 rx_status.vendor_radiotap_oui[0] = 0x00;
831 rx_status.vendor_radiotap_oui[1] = 0x00;
832 rx_status.vendor_radiotap_oui[2] = 0x00;
833 rx_status.vendor_radiotap_subns = 127;
834 /*
835 * Radiotap vendor namespaces can (and should) also be
836 * split into fields by using the standard radiotap
837 * presence bitmap mechanism. Use just BIT(0) here for
838 * the presence bitmap.
839 */
840 rx_status.vendor_radiotap_bitmap = BIT(0);
841 /* We have 8 bytes of (dummy) data */
842 rx_status.vendor_radiotap_len = 8;
843 /* For testing, also require it to be aligned */
844 rx_status.vendor_radiotap_align = 8;
845 /* push the data */
846 memcpy(skb_push(nskb, 8), "ABCDEFGH", 8);
847 #endif
848
849 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
850 ieee80211_rx_irqsafe(data2->hw, nskb);
851 }
852 spin_unlock(&hwsim_radio_lock);
853
854 return ack;
855 }
856
857 static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
858 struct ieee80211_tx_control *control,
859 struct sk_buff *skb)
860 {
861 struct mac80211_hwsim_data *data = hw->priv;
862 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
863 struct ieee80211_chanctx_conf *chanctx_conf;
864 struct ieee80211_channel *channel;
865 bool ack;
866 u32 _portid;
867
868 if (WARN_ON(skb->len < 10)) {
869 /* Should not happen; just a sanity check for addr1 use */
870 ieee80211_free_txskb(hw, skb);
871 return;
872 }
873
874 if (channels == 1) {
875 channel = data->channel;
876 } else if (txi->hw_queue == 4) {
877 channel = data->tmp_chan;
878 } else {
879 chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf);
880 if (chanctx_conf)
881 channel = chanctx_conf->def.chan;
882 else
883 channel = NULL;
884 }
885
886 if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
887 ieee80211_free_txskb(hw, skb);
888 return;
889 }
890
891 if (data->idle && !data->tmp_chan) {
892 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
893 ieee80211_free_txskb(hw, skb);
894 return;
895 }
896
897 if (txi->control.vif)
898 hwsim_check_magic(txi->control.vif);
899 if (control->sta)
900 hwsim_check_sta_magic(control->sta);
901
902 if (rctbl)
903 ieee80211_get_tx_rates(txi->control.vif, control->sta, skb,
904 txi->control.rates,
905 ARRAY_SIZE(txi->control.rates));
906
907 txi->rate_driver_data[0] = channel;
908 mac80211_hwsim_monitor_rx(hw, skb, channel);
909
910 /* wmediumd mode check */
911 _portid = ACCESS_ONCE(wmediumd_portid);
912
913 if (_portid)
914 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
915
916 /* NO wmediumd detected, perfect medium simulation */
917 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
918
919 if (ack && skb->len >= 16) {
920 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
921 mac80211_hwsim_monitor_ack(channel, hdr->addr2);
922 }
923
924 ieee80211_tx_info_clear_status(txi);
925
926 /* frame was transmitted at most favorable rate at first attempt */
927 txi->control.rates[0].count = 1;
928 txi->control.rates[1].idx = -1;
929
930 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
931 txi->flags |= IEEE80211_TX_STAT_ACK;
932 ieee80211_tx_status_irqsafe(hw, skb);
933 }
934
935
936 static int mac80211_hwsim_start(struct ieee80211_hw *hw)
937 {
938 struct mac80211_hwsim_data *data = hw->priv;
939 wiphy_debug(hw->wiphy, "%s\n", __func__);
940 data->started = true;
941 return 0;
942 }
943
944
945 static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
946 {
947 struct mac80211_hwsim_data *data = hw->priv;
948 data->started = false;
949 tasklet_hrtimer_cancel(&data->beacon_timer);
950 wiphy_debug(hw->wiphy, "%s\n", __func__);
951 }
952
953
954 static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
955 struct ieee80211_vif *vif)
956 {
957 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
958 __func__, ieee80211_vif_type_p2p(vif),
959 vif->addr);
960 hwsim_set_magic(vif);
961
962 vif->cab_queue = 0;
963 vif->hw_queue[IEEE80211_AC_VO] = 0;
964 vif->hw_queue[IEEE80211_AC_VI] = 1;
965 vif->hw_queue[IEEE80211_AC_BE] = 2;
966 vif->hw_queue[IEEE80211_AC_BK] = 3;
967
968 return 0;
969 }
970
971
972 static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
973 struct ieee80211_vif *vif,
974 enum nl80211_iftype newtype,
975 bool newp2p)
976 {
977 newtype = ieee80211_iftype_p2p(newtype, newp2p);
978 wiphy_debug(hw->wiphy,
979 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
980 __func__, ieee80211_vif_type_p2p(vif),
981 newtype, vif->addr);
982 hwsim_check_magic(vif);
983
984 /*
985 * interface may change from non-AP to AP in
986 * which case this needs to be set up again
987 */
988 vif->cab_queue = 0;
989
990 return 0;
991 }
992
993 static void mac80211_hwsim_remove_interface(
994 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
995 {
996 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
997 __func__, ieee80211_vif_type_p2p(vif),
998 vif->addr);
999 hwsim_check_magic(vif);
1000 hwsim_clear_magic(vif);
1001 }
1002
1003 static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
1004 struct sk_buff *skb,
1005 struct ieee80211_channel *chan)
1006 {
1007 u32 _pid = ACCESS_ONCE(wmediumd_portid);
1008
1009 if (rctbl) {
1010 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1011 ieee80211_get_tx_rates(txi->control.vif, NULL, skb,
1012 txi->control.rates,
1013 ARRAY_SIZE(txi->control.rates));
1014 }
1015
1016 mac80211_hwsim_monitor_rx(hw, skb, chan);
1017
1018 if (_pid)
1019 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
1020
1021 mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
1022 dev_kfree_skb(skb);
1023 }
1024
1025 static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
1026 struct ieee80211_vif *vif)
1027 {
1028 struct mac80211_hwsim_data *data = arg;
1029 struct ieee80211_hw *hw = data->hw;
1030 struct ieee80211_tx_info *info;
1031 struct ieee80211_rate *txrate;
1032 struct ieee80211_mgmt *mgmt;
1033 struct sk_buff *skb;
1034
1035 hwsim_check_magic(vif);
1036
1037 if (vif->type != NL80211_IFTYPE_AP &&
1038 vif->type != NL80211_IFTYPE_MESH_POINT &&
1039 vif->type != NL80211_IFTYPE_ADHOC)
1040 return;
1041
1042 skb = ieee80211_beacon_get(hw, vif);
1043 if (skb == NULL)
1044 return;
1045 info = IEEE80211_SKB_CB(skb);
1046 if (rctbl)
1047 ieee80211_get_tx_rates(vif, NULL, skb,
1048 info->control.rates,
1049 ARRAY_SIZE(info->control.rates));
1050
1051 txrate = ieee80211_get_tx_rate(hw, info);
1052
1053 mgmt = (struct ieee80211_mgmt *) skb->data;
1054 /* fake header transmission time */
1055 data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
1056 mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
1057 data->tsf_offset +
1058 24 * 8 * 10 / txrate->bitrate);
1059
1060 mac80211_hwsim_tx_frame(hw, skb,
1061 rcu_dereference(vif->chanctx_conf)->def.chan);
1062 }
1063
1064 static enum hrtimer_restart
1065 mac80211_hwsim_beacon(struct hrtimer *timer)
1066 {
1067 struct mac80211_hwsim_data *data =
1068 container_of(timer, struct mac80211_hwsim_data,
1069 beacon_timer.timer);
1070 struct ieee80211_hw *hw = data->hw;
1071 u64 bcn_int = data->beacon_int;
1072 ktime_t next_bcn;
1073
1074 if (!data->started)
1075 goto out;
1076
1077 ieee80211_iterate_active_interfaces_atomic(
1078 hw, IEEE80211_IFACE_ITER_NORMAL,
1079 mac80211_hwsim_beacon_tx, data);
1080
1081 /* beacon at new TBTT + beacon interval */
1082 if (data->bcn_delta) {
1083 bcn_int -= data->bcn_delta;
1084 data->bcn_delta = 0;
1085 }
1086
1087 next_bcn = ktime_add(hrtimer_get_expires(timer),
1088 ns_to_ktime(bcn_int * 1000));
1089 tasklet_hrtimer_start(&data->beacon_timer, next_bcn, HRTIMER_MODE_ABS);
1090 out:
1091 return HRTIMER_NORESTART;
1092 }
1093
1094 static const char * const hwsim_chanwidths[] = {
1095 [NL80211_CHAN_WIDTH_20_NOHT] = "noht",
1096 [NL80211_CHAN_WIDTH_20] = "ht20",
1097 [NL80211_CHAN_WIDTH_40] = "ht40",
1098 [NL80211_CHAN_WIDTH_80] = "vht80",
1099 [NL80211_CHAN_WIDTH_80P80] = "vht80p80",
1100 [NL80211_CHAN_WIDTH_160] = "vht160",
1101 };
1102
1103 static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
1104 {
1105 struct mac80211_hwsim_data *data = hw->priv;
1106 struct ieee80211_conf *conf = &hw->conf;
1107 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
1108 [IEEE80211_SMPS_AUTOMATIC] = "auto",
1109 [IEEE80211_SMPS_OFF] = "off",
1110 [IEEE80211_SMPS_STATIC] = "static",
1111 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
1112 };
1113
1114 if (conf->chandef.chan)
1115 wiphy_debug(hw->wiphy,
1116 "%s (freq=%d(%d - %d)/%s idle=%d ps=%d smps=%s)\n",
1117 __func__,
1118 conf->chandef.chan->center_freq,
1119 conf->chandef.center_freq1,
1120 conf->chandef.center_freq2,
1121 hwsim_chanwidths[conf->chandef.width],
1122 !!(conf->flags & IEEE80211_CONF_IDLE),
1123 !!(conf->flags & IEEE80211_CONF_PS),
1124 smps_modes[conf->smps_mode]);
1125 else
1126 wiphy_debug(hw->wiphy,
1127 "%s (freq=0 idle=%d ps=%d smps=%s)\n",
1128 __func__,
1129 !!(conf->flags & IEEE80211_CONF_IDLE),
1130 !!(conf->flags & IEEE80211_CONF_PS),
1131 smps_modes[conf->smps_mode]);
1132
1133 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1134
1135 data->channel = conf->chandef.chan;
1136
1137 WARN_ON(data->channel && channels > 1);
1138
1139 data->power_level = conf->power_level;
1140 if (!data->started || !data->beacon_int)
1141 tasklet_hrtimer_cancel(&data->beacon_timer);
1142 else if (!hrtimer_is_queued(&data->beacon_timer.timer)) {
1143 u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
1144 u32 bcn_int = data->beacon_int;
1145 u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1146
1147 tasklet_hrtimer_start(&data->beacon_timer,
1148 ns_to_ktime(until_tbtt * 1000),
1149 HRTIMER_MODE_REL);
1150 }
1151
1152 return 0;
1153 }
1154
1155
1156 static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
1157 unsigned int changed_flags,
1158 unsigned int *total_flags,u64 multicast)
1159 {
1160 struct mac80211_hwsim_data *data = hw->priv;
1161
1162 wiphy_debug(hw->wiphy, "%s\n", __func__);
1163
1164 data->rx_filter = 0;
1165 if (*total_flags & FIF_PROMISC_IN_BSS)
1166 data->rx_filter |= FIF_PROMISC_IN_BSS;
1167 if (*total_flags & FIF_ALLMULTI)
1168 data->rx_filter |= FIF_ALLMULTI;
1169
1170 *total_flags = data->rx_filter;
1171 }
1172
1173 static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
1174 struct ieee80211_vif *vif,
1175 struct ieee80211_bss_conf *info,
1176 u32 changed)
1177 {
1178 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1179 struct mac80211_hwsim_data *data = hw->priv;
1180
1181 hwsim_check_magic(vif);
1182
1183 wiphy_debug(hw->wiphy, "%s(changed=0x%x)\n", __func__, changed);
1184
1185 if (changed & BSS_CHANGED_BSSID) {
1186 wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
1187 __func__, info->bssid);
1188 memcpy(vp->bssid, info->bssid, ETH_ALEN);
1189 }
1190
1191 if (changed & BSS_CHANGED_ASSOC) {
1192 wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
1193 info->assoc, info->aid);
1194 vp->assoc = info->assoc;
1195 vp->aid = info->aid;
1196 }
1197
1198 if (changed & BSS_CHANGED_BEACON_INT) {
1199 wiphy_debug(hw->wiphy, " BCNINT: %d\n", info->beacon_int);
1200 data->beacon_int = info->beacon_int * 1024;
1201 }
1202
1203 if (changed & BSS_CHANGED_BEACON_ENABLED) {
1204 wiphy_debug(hw->wiphy, " BCN EN: %d\n", info->enable_beacon);
1205 if (data->started &&
1206 !hrtimer_is_queued(&data->beacon_timer.timer) &&
1207 info->enable_beacon) {
1208 u64 tsf, until_tbtt;
1209 u32 bcn_int;
1210 if (WARN_ON(!data->beacon_int))
1211 data->beacon_int = 1000 * 1024;
1212 tsf = mac80211_hwsim_get_tsf(hw, vif);
1213 bcn_int = data->beacon_int;
1214 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1215 tasklet_hrtimer_start(&data->beacon_timer,
1216 ns_to_ktime(until_tbtt * 1000),
1217 HRTIMER_MODE_REL);
1218 } else if (!info->enable_beacon)
1219 tasklet_hrtimer_cancel(&data->beacon_timer);
1220 }
1221
1222 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
1223 wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
1224 info->use_cts_prot);
1225 }
1226
1227 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
1228 wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
1229 info->use_short_preamble);
1230 }
1231
1232 if (changed & BSS_CHANGED_ERP_SLOT) {
1233 wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
1234 }
1235
1236 if (changed & BSS_CHANGED_HT) {
1237 wiphy_debug(hw->wiphy, " HT: op_mode=0x%x\n",
1238 info->ht_operation_mode);
1239 }
1240
1241 if (changed & BSS_CHANGED_BASIC_RATES) {
1242 wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
1243 (unsigned long long) info->basic_rates);
1244 }
1245
1246 if (changed & BSS_CHANGED_TXPOWER)
1247 wiphy_debug(hw->wiphy, " TX Power: %d dBm\n", info->txpower);
1248 }
1249
1250 static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
1251 struct ieee80211_vif *vif,
1252 struct ieee80211_sta *sta)
1253 {
1254 hwsim_check_magic(vif);
1255 hwsim_set_sta_magic(sta);
1256
1257 return 0;
1258 }
1259
1260 static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
1261 struct ieee80211_vif *vif,
1262 struct ieee80211_sta *sta)
1263 {
1264 hwsim_check_magic(vif);
1265 hwsim_clear_sta_magic(sta);
1266
1267 return 0;
1268 }
1269
1270 static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
1271 struct ieee80211_vif *vif,
1272 enum sta_notify_cmd cmd,
1273 struct ieee80211_sta *sta)
1274 {
1275 hwsim_check_magic(vif);
1276
1277 switch (cmd) {
1278 case STA_NOTIFY_SLEEP:
1279 case STA_NOTIFY_AWAKE:
1280 /* TODO: make good use of these flags */
1281 break;
1282 default:
1283 WARN(1, "Invalid sta notify: %d\n", cmd);
1284 break;
1285 }
1286 }
1287
1288 static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
1289 struct ieee80211_sta *sta,
1290 bool set)
1291 {
1292 hwsim_check_sta_magic(sta);
1293 return 0;
1294 }
1295
1296 static int mac80211_hwsim_conf_tx(
1297 struct ieee80211_hw *hw,
1298 struct ieee80211_vif *vif, u16 queue,
1299 const struct ieee80211_tx_queue_params *params)
1300 {
1301 wiphy_debug(hw->wiphy,
1302 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1303 __func__, queue,
1304 params->txop, params->cw_min,
1305 params->cw_max, params->aifs);
1306 return 0;
1307 }
1308
1309 static int mac80211_hwsim_get_survey(
1310 struct ieee80211_hw *hw, int idx,
1311 struct survey_info *survey)
1312 {
1313 struct ieee80211_conf *conf = &hw->conf;
1314
1315 wiphy_debug(hw->wiphy, "%s (idx=%d)\n", __func__, idx);
1316
1317 if (idx != 0)
1318 return -ENOENT;
1319
1320 /* Current channel */
1321 survey->channel = conf->chandef.chan;
1322
1323 /*
1324 * Magically conjured noise level --- this is only ok for simulated hardware.
1325 *
1326 * A real driver which cannot determine the real channel noise MUST NOT
1327 * report any noise, especially not a magically conjured one :-)
1328 */
1329 survey->filled = SURVEY_INFO_NOISE_DBM;
1330 survey->noise = -92;
1331
1332 return 0;
1333 }
1334
1335 #ifdef CONFIG_NL80211_TESTMODE
1336 /*
1337 * This section contains example code for using netlink
1338 * attributes with the testmode command in nl80211.
1339 */
1340
1341 /* These enums need to be kept in sync with userspace */
1342 enum hwsim_testmode_attr {
1343 __HWSIM_TM_ATTR_INVALID = 0,
1344 HWSIM_TM_ATTR_CMD = 1,
1345 HWSIM_TM_ATTR_PS = 2,
1346
1347 /* keep last */
1348 __HWSIM_TM_ATTR_AFTER_LAST,
1349 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1350 };
1351
1352 enum hwsim_testmode_cmd {
1353 HWSIM_TM_CMD_SET_PS = 0,
1354 HWSIM_TM_CMD_GET_PS = 1,
1355 HWSIM_TM_CMD_STOP_QUEUES = 2,
1356 HWSIM_TM_CMD_WAKE_QUEUES = 3,
1357 };
1358
1359 static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1360 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1361 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1362 };
1363
1364 static int hwsim_fops_ps_write(void *dat, u64 val);
1365
1366 static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
1367 struct ieee80211_vif *vif,
1368 void *data, int len)
1369 {
1370 struct mac80211_hwsim_data *hwsim = hw->priv;
1371 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1372 struct sk_buff *skb;
1373 int err, ps;
1374
1375 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
1376 hwsim_testmode_policy);
1377 if (err)
1378 return err;
1379
1380 if (!tb[HWSIM_TM_ATTR_CMD])
1381 return -EINVAL;
1382
1383 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1384 case HWSIM_TM_CMD_SET_PS:
1385 if (!tb[HWSIM_TM_ATTR_PS])
1386 return -EINVAL;
1387 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1388 return hwsim_fops_ps_write(hwsim, ps);
1389 case HWSIM_TM_CMD_GET_PS:
1390 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1391 nla_total_size(sizeof(u32)));
1392 if (!skb)
1393 return -ENOMEM;
1394 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
1395 goto nla_put_failure;
1396 return cfg80211_testmode_reply(skb);
1397 case HWSIM_TM_CMD_STOP_QUEUES:
1398 ieee80211_stop_queues(hw);
1399 return 0;
1400 case HWSIM_TM_CMD_WAKE_QUEUES:
1401 ieee80211_wake_queues(hw);
1402 return 0;
1403 default:
1404 return -EOPNOTSUPP;
1405 }
1406
1407 nla_put_failure:
1408 kfree_skb(skb);
1409 return -ENOBUFS;
1410 }
1411 #endif
1412
1413 static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1414 struct ieee80211_vif *vif,
1415 enum ieee80211_ampdu_mlme_action action,
1416 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
1417 u8 buf_size)
1418 {
1419 switch (action) {
1420 case IEEE80211_AMPDU_TX_START:
1421 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1422 break;
1423 case IEEE80211_AMPDU_TX_STOP_CONT:
1424 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1425 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1426 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1427 break;
1428 case IEEE80211_AMPDU_TX_OPERATIONAL:
1429 break;
1430 case IEEE80211_AMPDU_RX_START:
1431 case IEEE80211_AMPDU_RX_STOP:
1432 break;
1433 default:
1434 return -EOPNOTSUPP;
1435 }
1436
1437 return 0;
1438 }
1439
1440 static void mac80211_hwsim_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
1441 {
1442 /* Not implemented, queues only on kernel side */
1443 }
1444
1445 static void hw_scan_work(struct work_struct *work)
1446 {
1447 struct mac80211_hwsim_data *hwsim =
1448 container_of(work, struct mac80211_hwsim_data, hw_scan.work);
1449 struct cfg80211_scan_request *req = hwsim->hw_scan_request;
1450 int dwell, i;
1451
1452 mutex_lock(&hwsim->mutex);
1453 if (hwsim->scan_chan_idx >= req->n_channels) {
1454 wiphy_debug(hwsim->hw->wiphy, "hw scan complete\n");
1455 ieee80211_scan_completed(hwsim->hw, false);
1456 hwsim->hw_scan_request = NULL;
1457 hwsim->hw_scan_vif = NULL;
1458 hwsim->tmp_chan = NULL;
1459 mutex_unlock(&hwsim->mutex);
1460 return;
1461 }
1462
1463 wiphy_debug(hwsim->hw->wiphy, "hw scan %d MHz\n",
1464 req->channels[hwsim->scan_chan_idx]->center_freq);
1465
1466 hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
1467 if (hwsim->tmp_chan->flags & IEEE80211_CHAN_PASSIVE_SCAN ||
1468 !req->n_ssids) {
1469 dwell = 120;
1470 } else {
1471 dwell = 30;
1472 /* send probes */
1473 for (i = 0; i < req->n_ssids; i++) {
1474 struct sk_buff *probe;
1475
1476 probe = ieee80211_probereq_get(hwsim->hw,
1477 hwsim->hw_scan_vif,
1478 req->ssids[i].ssid,
1479 req->ssids[i].ssid_len,
1480 req->ie_len);
1481 if (!probe)
1482 continue;
1483
1484 if (req->ie_len)
1485 memcpy(skb_put(probe, req->ie_len), req->ie,
1486 req->ie_len);
1487
1488 local_bh_disable();
1489 mac80211_hwsim_tx_frame(hwsim->hw, probe,
1490 hwsim->tmp_chan);
1491 local_bh_enable();
1492 }
1493 }
1494 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
1495 msecs_to_jiffies(dwell));
1496 hwsim->scan_chan_idx++;
1497 mutex_unlock(&hwsim->mutex);
1498 }
1499
1500 static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
1501 struct ieee80211_vif *vif,
1502 struct cfg80211_scan_request *req)
1503 {
1504 struct mac80211_hwsim_data *hwsim = hw->priv;
1505
1506 mutex_lock(&hwsim->mutex);
1507 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1508 mutex_unlock(&hwsim->mutex);
1509 return -EBUSY;
1510 }
1511 hwsim->hw_scan_request = req;
1512 hwsim->hw_scan_vif = vif;
1513 hwsim->scan_chan_idx = 0;
1514 mutex_unlock(&hwsim->mutex);
1515
1516 wiphy_debug(hw->wiphy, "hwsim hw_scan request\n");
1517
1518 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
1519
1520 return 0;
1521 }
1522
1523 static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
1524 struct ieee80211_vif *vif)
1525 {
1526 struct mac80211_hwsim_data *hwsim = hw->priv;
1527
1528 wiphy_debug(hw->wiphy, "hwsim cancel_hw_scan\n");
1529
1530 cancel_delayed_work_sync(&hwsim->hw_scan);
1531
1532 mutex_lock(&hwsim->mutex);
1533 ieee80211_scan_completed(hwsim->hw, true);
1534 hwsim->tmp_chan = NULL;
1535 hwsim->hw_scan_request = NULL;
1536 hwsim->hw_scan_vif = NULL;
1537 mutex_unlock(&hwsim->mutex);
1538 }
1539
1540 static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw)
1541 {
1542 struct mac80211_hwsim_data *hwsim = hw->priv;
1543
1544 mutex_lock(&hwsim->mutex);
1545
1546 if (hwsim->scanning) {
1547 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
1548 goto out;
1549 }
1550
1551 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
1552 hwsim->scanning = true;
1553
1554 out:
1555 mutex_unlock(&hwsim->mutex);
1556 }
1557
1558 static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw)
1559 {
1560 struct mac80211_hwsim_data *hwsim = hw->priv;
1561
1562 mutex_lock(&hwsim->mutex);
1563
1564 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
1565 hwsim->scanning = false;
1566
1567 mutex_unlock(&hwsim->mutex);
1568 }
1569
1570 static void hw_roc_done(struct work_struct *work)
1571 {
1572 struct mac80211_hwsim_data *hwsim =
1573 container_of(work, struct mac80211_hwsim_data, roc_done.work);
1574
1575 mutex_lock(&hwsim->mutex);
1576 ieee80211_remain_on_channel_expired(hwsim->hw);
1577 hwsim->tmp_chan = NULL;
1578 mutex_unlock(&hwsim->mutex);
1579
1580 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC expired\n");
1581 }
1582
1583 static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
1584 struct ieee80211_vif *vif,
1585 struct ieee80211_channel *chan,
1586 int duration,
1587 enum ieee80211_roc_type type)
1588 {
1589 struct mac80211_hwsim_data *hwsim = hw->priv;
1590
1591 mutex_lock(&hwsim->mutex);
1592 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1593 mutex_unlock(&hwsim->mutex);
1594 return -EBUSY;
1595 }
1596
1597 hwsim->tmp_chan = chan;
1598 mutex_unlock(&hwsim->mutex);
1599
1600 wiphy_debug(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
1601 chan->center_freq, duration);
1602
1603 ieee80211_ready_on_channel(hw);
1604
1605 ieee80211_queue_delayed_work(hw, &hwsim->roc_done,
1606 msecs_to_jiffies(duration));
1607 return 0;
1608 }
1609
1610 static int mac80211_hwsim_croc(struct ieee80211_hw *hw)
1611 {
1612 struct mac80211_hwsim_data *hwsim = hw->priv;
1613
1614 cancel_delayed_work_sync(&hwsim->roc_done);
1615
1616 mutex_lock(&hwsim->mutex);
1617 hwsim->tmp_chan = NULL;
1618 mutex_unlock(&hwsim->mutex);
1619
1620 wiphy_debug(hw->wiphy, "hwsim ROC canceled\n");
1621
1622 return 0;
1623 }
1624
1625 static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
1626 struct ieee80211_chanctx_conf *ctx)
1627 {
1628 hwsim_set_chanctx_magic(ctx);
1629 wiphy_debug(hw->wiphy,
1630 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1631 ctx->def.chan->center_freq, ctx->def.width,
1632 ctx->def.center_freq1, ctx->def.center_freq2);
1633 return 0;
1634 }
1635
1636 static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
1637 struct ieee80211_chanctx_conf *ctx)
1638 {
1639 wiphy_debug(hw->wiphy,
1640 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1641 ctx->def.chan->center_freq, ctx->def.width,
1642 ctx->def.center_freq1, ctx->def.center_freq2);
1643 hwsim_check_chanctx_magic(ctx);
1644 hwsim_clear_chanctx_magic(ctx);
1645 }
1646
1647 static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
1648 struct ieee80211_chanctx_conf *ctx,
1649 u32 changed)
1650 {
1651 hwsim_check_chanctx_magic(ctx);
1652 wiphy_debug(hw->wiphy,
1653 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1654 ctx->def.chan->center_freq, ctx->def.width,
1655 ctx->def.center_freq1, ctx->def.center_freq2);
1656 }
1657
1658 static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
1659 struct ieee80211_vif *vif,
1660 struct ieee80211_chanctx_conf *ctx)
1661 {
1662 hwsim_check_magic(vif);
1663 hwsim_check_chanctx_magic(ctx);
1664
1665 return 0;
1666 }
1667
1668 static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
1669 struct ieee80211_vif *vif,
1670 struct ieee80211_chanctx_conf *ctx)
1671 {
1672 hwsim_check_magic(vif);
1673 hwsim_check_chanctx_magic(ctx);
1674 }
1675
1676 static struct ieee80211_ops mac80211_hwsim_ops =
1677 {
1678 .tx = mac80211_hwsim_tx,
1679 .start = mac80211_hwsim_start,
1680 .stop = mac80211_hwsim_stop,
1681 .add_interface = mac80211_hwsim_add_interface,
1682 .change_interface = mac80211_hwsim_change_interface,
1683 .remove_interface = mac80211_hwsim_remove_interface,
1684 .config = mac80211_hwsim_config,
1685 .configure_filter = mac80211_hwsim_configure_filter,
1686 .bss_info_changed = mac80211_hwsim_bss_info_changed,
1687 .sta_add = mac80211_hwsim_sta_add,
1688 .sta_remove = mac80211_hwsim_sta_remove,
1689 .sta_notify = mac80211_hwsim_sta_notify,
1690 .set_tim = mac80211_hwsim_set_tim,
1691 .conf_tx = mac80211_hwsim_conf_tx,
1692 .get_survey = mac80211_hwsim_get_survey,
1693 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
1694 .ampdu_action = mac80211_hwsim_ampdu_action,
1695 .sw_scan_start = mac80211_hwsim_sw_scan,
1696 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
1697 .flush = mac80211_hwsim_flush,
1698 .get_tsf = mac80211_hwsim_get_tsf,
1699 .set_tsf = mac80211_hwsim_set_tsf,
1700 };
1701
1702
1703 static void mac80211_hwsim_free(void)
1704 {
1705 struct list_head tmplist, *i, *tmp;
1706 struct mac80211_hwsim_data *data, *tmpdata;
1707
1708 INIT_LIST_HEAD(&tmplist);
1709
1710 spin_lock_bh(&hwsim_radio_lock);
1711 list_for_each_safe(i, tmp, &hwsim_radios)
1712 list_move(i, &tmplist);
1713 spin_unlock_bh(&hwsim_radio_lock);
1714
1715 list_for_each_entry_safe(data, tmpdata, &tmplist, list) {
1716 debugfs_remove(data->debugfs_group);
1717 debugfs_remove(data->debugfs_ps);
1718 debugfs_remove(data->debugfs);
1719 ieee80211_unregister_hw(data->hw);
1720 device_release_driver(data->dev);
1721 device_unregister(data->dev);
1722 ieee80211_free_hw(data->hw);
1723 }
1724 class_destroy(hwsim_class);
1725 }
1726
1727 static struct platform_driver mac80211_hwsim_driver = {
1728 .driver = {
1729 .name = "mac80211_hwsim",
1730 .owner = THIS_MODULE,
1731 },
1732 };
1733
1734 static const struct net_device_ops hwsim_netdev_ops = {
1735 .ndo_start_xmit = hwsim_mon_xmit,
1736 .ndo_change_mtu = eth_change_mtu,
1737 .ndo_set_mac_address = eth_mac_addr,
1738 .ndo_validate_addr = eth_validate_addr,
1739 };
1740
1741 static void hwsim_mon_setup(struct net_device *dev)
1742 {
1743 dev->netdev_ops = &hwsim_netdev_ops;
1744 dev->destructor = free_netdev;
1745 ether_setup(dev);
1746 dev->tx_queue_len = 0;
1747 dev->type = ARPHRD_IEEE80211_RADIOTAP;
1748 memset(dev->dev_addr, 0, ETH_ALEN);
1749 dev->dev_addr[0] = 0x12;
1750 }
1751
1752
1753 static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
1754 {
1755 struct mac80211_hwsim_data *data = dat;
1756 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1757 struct sk_buff *skb;
1758 struct ieee80211_pspoll *pspoll;
1759
1760 if (!vp->assoc)
1761 return;
1762
1763 wiphy_debug(data->hw->wiphy,
1764 "%s: send PS-Poll to %pM for aid %d\n",
1765 __func__, vp->bssid, vp->aid);
1766
1767 skb = dev_alloc_skb(sizeof(*pspoll));
1768 if (!skb)
1769 return;
1770 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
1771 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
1772 IEEE80211_STYPE_PSPOLL |
1773 IEEE80211_FCTL_PM);
1774 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
1775 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
1776 memcpy(pspoll->ta, mac, ETH_ALEN);
1777
1778 rcu_read_lock();
1779 mac80211_hwsim_tx_frame(data->hw, skb,
1780 rcu_dereference(vif->chanctx_conf)->def.chan);
1781 rcu_read_unlock();
1782 }
1783
1784 static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
1785 struct ieee80211_vif *vif, int ps)
1786 {
1787 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1788 struct sk_buff *skb;
1789 struct ieee80211_hdr *hdr;
1790
1791 if (!vp->assoc)
1792 return;
1793
1794 wiphy_debug(data->hw->wiphy,
1795 "%s: send data::nullfunc to %pM ps=%d\n",
1796 __func__, vp->bssid, ps);
1797
1798 skb = dev_alloc_skb(sizeof(*hdr));
1799 if (!skb)
1800 return;
1801 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
1802 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1803 IEEE80211_STYPE_NULLFUNC |
1804 (ps ? IEEE80211_FCTL_PM : 0));
1805 hdr->duration_id = cpu_to_le16(0);
1806 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
1807 memcpy(hdr->addr2, mac, ETH_ALEN);
1808 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
1809
1810 rcu_read_lock();
1811 mac80211_hwsim_tx_frame(data->hw, skb,
1812 rcu_dereference(vif->chanctx_conf)->def.chan);
1813 rcu_read_unlock();
1814 }
1815
1816
1817 static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
1818 struct ieee80211_vif *vif)
1819 {
1820 struct mac80211_hwsim_data *data = dat;
1821 hwsim_send_nullfunc(data, mac, vif, 1);
1822 }
1823
1824
1825 static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
1826 struct ieee80211_vif *vif)
1827 {
1828 struct mac80211_hwsim_data *data = dat;
1829 hwsim_send_nullfunc(data, mac, vif, 0);
1830 }
1831
1832
1833 static int hwsim_fops_ps_read(void *dat, u64 *val)
1834 {
1835 struct mac80211_hwsim_data *data = dat;
1836 *val = data->ps;
1837 return 0;
1838 }
1839
1840 static int hwsim_fops_ps_write(void *dat, u64 val)
1841 {
1842 struct mac80211_hwsim_data *data = dat;
1843 enum ps_mode old_ps;
1844
1845 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
1846 val != PS_MANUAL_POLL)
1847 return -EINVAL;
1848
1849 old_ps = data->ps;
1850 data->ps = val;
1851
1852 if (val == PS_MANUAL_POLL) {
1853 ieee80211_iterate_active_interfaces(data->hw,
1854 IEEE80211_IFACE_ITER_NORMAL,
1855 hwsim_send_ps_poll, data);
1856 data->ps_poll_pending = true;
1857 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
1858 ieee80211_iterate_active_interfaces(data->hw,
1859 IEEE80211_IFACE_ITER_NORMAL,
1860 hwsim_send_nullfunc_ps,
1861 data);
1862 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
1863 ieee80211_iterate_active_interfaces(data->hw,
1864 IEEE80211_IFACE_ITER_NORMAL,
1865 hwsim_send_nullfunc_no_ps,
1866 data);
1867 }
1868
1869 return 0;
1870 }
1871
1872 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
1873 "%llu\n");
1874
1875
1876 static int hwsim_fops_group_read(void *dat, u64 *val)
1877 {
1878 struct mac80211_hwsim_data *data = dat;
1879 *val = data->group;
1880 return 0;
1881 }
1882
1883 static int hwsim_fops_group_write(void *dat, u64 val)
1884 {
1885 struct mac80211_hwsim_data *data = dat;
1886 data->group = val;
1887 return 0;
1888 }
1889
1890 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
1891 hwsim_fops_group_read, hwsim_fops_group_write,
1892 "%llx\n");
1893
1894 static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(
1895 struct mac_address *addr)
1896 {
1897 struct mac80211_hwsim_data *data;
1898 bool _found = false;
1899
1900 spin_lock_bh(&hwsim_radio_lock);
1901 list_for_each_entry(data, &hwsim_radios, list) {
1902 if (memcmp(data->addresses[1].addr, addr,
1903 sizeof(struct mac_address)) == 0) {
1904 _found = true;
1905 break;
1906 }
1907 }
1908 spin_unlock_bh(&hwsim_radio_lock);
1909
1910 if (!_found)
1911 return NULL;
1912
1913 return data;
1914 }
1915
1916 static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
1917 struct genl_info *info)
1918 {
1919
1920 struct ieee80211_hdr *hdr;
1921 struct mac80211_hwsim_data *data2;
1922 struct ieee80211_tx_info *txi;
1923 struct hwsim_tx_rate *tx_attempts;
1924 unsigned long ret_skb_ptr;
1925 struct sk_buff *skb, *tmp;
1926 struct mac_address *src;
1927 unsigned int hwsim_flags;
1928
1929 int i;
1930 bool found = false;
1931
1932 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
1933 !info->attrs[HWSIM_ATTR_FLAGS] ||
1934 !info->attrs[HWSIM_ATTR_COOKIE] ||
1935 !info->attrs[HWSIM_ATTR_TX_INFO])
1936 goto out;
1937
1938 src = (struct mac_address *)nla_data(
1939 info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
1940 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
1941
1942 ret_skb_ptr = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
1943
1944 data2 = get_hwsim_data_ref_from_addr(src);
1945
1946 if (data2 == NULL)
1947 goto out;
1948
1949 /* look for the skb matching the cookie passed back from user */
1950 skb_queue_walk_safe(&data2->pending, skb, tmp) {
1951 if ((unsigned long)skb == ret_skb_ptr) {
1952 skb_unlink(skb, &data2->pending);
1953 found = true;
1954 break;
1955 }
1956 }
1957
1958 /* not found */
1959 if (!found)
1960 goto out;
1961
1962 /* Tx info received because the frame was broadcasted on user space,
1963 so we get all the necessary info: tx attempts and skb control buff */
1964
1965 tx_attempts = (struct hwsim_tx_rate *)nla_data(
1966 info->attrs[HWSIM_ATTR_TX_INFO]);
1967
1968 /* now send back TX status */
1969 txi = IEEE80211_SKB_CB(skb);
1970
1971 ieee80211_tx_info_clear_status(txi);
1972
1973 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
1974 txi->status.rates[i].idx = tx_attempts[i].idx;
1975 txi->status.rates[i].count = tx_attempts[i].count;
1976 /*txi->status.rates[i].flags = 0;*/
1977 }
1978
1979 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
1980
1981 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
1982 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
1983 if (skb->len >= 16) {
1984 hdr = (struct ieee80211_hdr *) skb->data;
1985 mac80211_hwsim_monitor_ack(txi->rate_driver_data[0],
1986 hdr->addr2);
1987 }
1988 txi->flags |= IEEE80211_TX_STAT_ACK;
1989 }
1990 ieee80211_tx_status_irqsafe(data2->hw, skb);
1991 return 0;
1992 out:
1993 return -EINVAL;
1994
1995 }
1996
1997 static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
1998 struct genl_info *info)
1999 {
2000
2001 struct mac80211_hwsim_data *data2;
2002 struct ieee80211_rx_status rx_status;
2003 struct mac_address *dst;
2004 int frame_data_len;
2005 char *frame_data;
2006 struct sk_buff *skb = NULL;
2007
2008 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
2009 !info->attrs[HWSIM_ATTR_FRAME] ||
2010 !info->attrs[HWSIM_ATTR_RX_RATE] ||
2011 !info->attrs[HWSIM_ATTR_SIGNAL])
2012 goto out;
2013
2014 dst = (struct mac_address *)nla_data(
2015 info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
2016
2017 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
2018 frame_data = (char *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
2019
2020 /* Allocate new skb here */
2021 skb = alloc_skb(frame_data_len, GFP_KERNEL);
2022 if (skb == NULL)
2023 goto err;
2024
2025 if (frame_data_len <= IEEE80211_MAX_DATA_LEN) {
2026 /* Copy the data */
2027 memcpy(skb_put(skb, frame_data_len), frame_data,
2028 frame_data_len);
2029 } else
2030 goto err;
2031
2032 data2 = get_hwsim_data_ref_from_addr(dst);
2033
2034 if (data2 == NULL)
2035 goto out;
2036
2037 /* check if radio is configured properly */
2038
2039 if (data2->idle || !data2->started)
2040 goto out;
2041
2042 /*A frame is received from user space*/
2043 memset(&rx_status, 0, sizeof(rx_status));
2044 rx_status.freq = data2->channel->center_freq;
2045 rx_status.band = data2->channel->band;
2046 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
2047 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
2048
2049 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
2050 ieee80211_rx_irqsafe(data2->hw, skb);
2051
2052 return 0;
2053 err:
2054 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
2055 goto out;
2056 out:
2057 dev_kfree_skb(skb);
2058 return -EINVAL;
2059 }
2060
2061 static int hwsim_register_received_nl(struct sk_buff *skb_2,
2062 struct genl_info *info)
2063 {
2064 if (info == NULL)
2065 goto out;
2066
2067 wmediumd_portid = info->snd_portid;
2068
2069 printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
2070 "switching to wmediumd mode with pid %d\n", info->snd_portid);
2071
2072 return 0;
2073 out:
2074 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
2075 return -EINVAL;
2076 }
2077
2078 /* Generic Netlink operations array */
2079 static struct genl_ops hwsim_ops[] = {
2080 {
2081 .cmd = HWSIM_CMD_REGISTER,
2082 .policy = hwsim_genl_policy,
2083 .doit = hwsim_register_received_nl,
2084 .flags = GENL_ADMIN_PERM,
2085 },
2086 {
2087 .cmd = HWSIM_CMD_FRAME,
2088 .policy = hwsim_genl_policy,
2089 .doit = hwsim_cloned_frame_received_nl,
2090 },
2091 {
2092 .cmd = HWSIM_CMD_TX_INFO_FRAME,
2093 .policy = hwsim_genl_policy,
2094 .doit = hwsim_tx_info_frame_received_nl,
2095 },
2096 };
2097
2098 static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
2099 unsigned long state,
2100 void *_notify)
2101 {
2102 struct netlink_notify *notify = _notify;
2103
2104 if (state != NETLINK_URELEASE)
2105 return NOTIFY_DONE;
2106
2107 if (notify->portid == wmediumd_portid) {
2108 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
2109 " socket, switching to perfect channel medium\n");
2110 wmediumd_portid = 0;
2111 }
2112 return NOTIFY_DONE;
2113
2114 }
2115
2116 static struct notifier_block hwsim_netlink_notifier = {
2117 .notifier_call = mac80211_hwsim_netlink_notify,
2118 };
2119
2120 static int hwsim_init_netlink(void)
2121 {
2122 int rc;
2123
2124 /* userspace test API hasn't been adjusted for multi-channel */
2125 if (channels > 1)
2126 return 0;
2127
2128 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
2129
2130 rc = genl_register_family_with_ops(&hwsim_genl_family,
2131 hwsim_ops, ARRAY_SIZE(hwsim_ops));
2132 if (rc)
2133 goto failure;
2134
2135 rc = netlink_register_notifier(&hwsim_netlink_notifier);
2136 if (rc)
2137 goto failure;
2138
2139 return 0;
2140
2141 failure:
2142 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
2143 return -EINVAL;
2144 }
2145
2146 static void hwsim_exit_netlink(void)
2147 {
2148 int ret;
2149
2150 /* userspace test API hasn't been adjusted for multi-channel */
2151 if (channels > 1)
2152 return;
2153
2154 printk(KERN_INFO "mac80211_hwsim: closing netlink\n");
2155 /* unregister the notifier */
2156 netlink_unregister_notifier(&hwsim_netlink_notifier);
2157 /* unregister the family */
2158 ret = genl_unregister_family(&hwsim_genl_family);
2159 if (ret)
2160 printk(KERN_DEBUG "mac80211_hwsim: "
2161 "unregister family %i\n", ret);
2162 }
2163
2164 static const struct ieee80211_iface_limit hwsim_if_limits[] = {
2165 { .max = 1, .types = BIT(NL80211_IFTYPE_ADHOC) },
2166 { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) |
2167 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2168 #ifdef CONFIG_MAC80211_MESH
2169 BIT(NL80211_IFTYPE_MESH_POINT) |
2170 #endif
2171 BIT(NL80211_IFTYPE_AP) |
2172 BIT(NL80211_IFTYPE_P2P_GO) },
2173 { .max = 1, .types = BIT(NL80211_IFTYPE_P2P_DEVICE) },
2174 };
2175
2176 static struct ieee80211_iface_combination hwsim_if_comb = {
2177 .limits = hwsim_if_limits,
2178 .n_limits = ARRAY_SIZE(hwsim_if_limits),
2179 .max_interfaces = 2048,
2180 .num_different_channels = 1,
2181 };
2182
2183 static int __init init_mac80211_hwsim(void)
2184 {
2185 int i, err = 0;
2186 u8 addr[ETH_ALEN];
2187 struct mac80211_hwsim_data *data;
2188 struct ieee80211_hw *hw;
2189 enum ieee80211_band band;
2190
2191 if (radios < 1 || radios > 100)
2192 return -EINVAL;
2193
2194 if (channels < 1)
2195 return -EINVAL;
2196
2197 if (channels > 1) {
2198 hwsim_if_comb.num_different_channels = channels;
2199 mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan;
2200 mac80211_hwsim_ops.cancel_hw_scan =
2201 mac80211_hwsim_cancel_hw_scan;
2202 mac80211_hwsim_ops.sw_scan_start = NULL;
2203 mac80211_hwsim_ops.sw_scan_complete = NULL;
2204 mac80211_hwsim_ops.remain_on_channel =
2205 mac80211_hwsim_roc;
2206 mac80211_hwsim_ops.cancel_remain_on_channel =
2207 mac80211_hwsim_croc;
2208 mac80211_hwsim_ops.add_chanctx =
2209 mac80211_hwsim_add_chanctx;
2210 mac80211_hwsim_ops.remove_chanctx =
2211 mac80211_hwsim_remove_chanctx;
2212 mac80211_hwsim_ops.change_chanctx =
2213 mac80211_hwsim_change_chanctx;
2214 mac80211_hwsim_ops.assign_vif_chanctx =
2215 mac80211_hwsim_assign_vif_chanctx;
2216 mac80211_hwsim_ops.unassign_vif_chanctx =
2217 mac80211_hwsim_unassign_vif_chanctx;
2218 }
2219
2220 spin_lock_init(&hwsim_radio_lock);
2221 INIT_LIST_HEAD(&hwsim_radios);
2222
2223 err = platform_driver_register(&mac80211_hwsim_driver);
2224 if (err)
2225 return err;
2226
2227 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
2228 if (IS_ERR(hwsim_class)) {
2229 err = PTR_ERR(hwsim_class);
2230 goto failed_unregister_driver;
2231 }
2232
2233 memset(addr, 0, ETH_ALEN);
2234 addr[0] = 0x02;
2235
2236 for (i = 0; i < radios; i++) {
2237 printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
2238 i);
2239 hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);
2240 if (!hw) {
2241 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
2242 "failed\n");
2243 err = -ENOMEM;
2244 goto failed;
2245 }
2246 data = hw->priv;
2247 data->hw = hw;
2248
2249 data->dev = device_create(hwsim_class, NULL, 0, hw,
2250 "hwsim%d", i);
2251 if (IS_ERR(data->dev)) {
2252 printk(KERN_DEBUG
2253 "mac80211_hwsim: device_create failed (%ld)\n",
2254 PTR_ERR(data->dev));
2255 err = -ENOMEM;
2256 goto failed_drvdata;
2257 }
2258 data->dev->driver = &mac80211_hwsim_driver.driver;
2259 err = device_bind_driver(data->dev);
2260 if (err != 0) {
2261 printk(KERN_DEBUG
2262 "mac80211_hwsim: device_bind_driver failed (%d)\n",
2263 err);
2264 goto failed_hw;
2265 }
2266
2267 skb_queue_head_init(&data->pending);
2268
2269 SET_IEEE80211_DEV(hw, data->dev);
2270 addr[3] = i >> 8;
2271 addr[4] = i;
2272 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
2273 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
2274 data->addresses[1].addr[0] |= 0x40;
2275 hw->wiphy->n_addresses = 2;
2276 hw->wiphy->addresses = data->addresses;
2277
2278 hw->wiphy->iface_combinations = &hwsim_if_comb;
2279 hw->wiphy->n_iface_combinations = 1;
2280
2281 if (channels > 1) {
2282 hw->wiphy->max_scan_ssids = 255;
2283 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
2284 hw->wiphy->max_remain_on_channel_duration = 1000;
2285 }
2286
2287 INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
2288 INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
2289
2290 hw->channel_change_time = 1;
2291 hw->queues = 5;
2292 hw->offchannel_tx_hw_queue = 4;
2293 hw->wiphy->interface_modes =
2294 BIT(NL80211_IFTYPE_STATION) |
2295 BIT(NL80211_IFTYPE_AP) |
2296 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2297 BIT(NL80211_IFTYPE_P2P_GO) |
2298 BIT(NL80211_IFTYPE_ADHOC) |
2299 BIT(NL80211_IFTYPE_MESH_POINT) |
2300 BIT(NL80211_IFTYPE_P2P_DEVICE);
2301
2302 hw->flags = IEEE80211_HW_MFP_CAPABLE |
2303 IEEE80211_HW_SIGNAL_DBM |
2304 IEEE80211_HW_SUPPORTS_STATIC_SMPS |
2305 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
2306 IEEE80211_HW_AMPDU_AGGREGATION |
2307 IEEE80211_HW_WANT_MONITOR_VIF |
2308 IEEE80211_HW_QUEUE_CONTROL;
2309 if (rctbl)
2310 hw->flags |= IEEE80211_HW_SUPPORTS_RC_TABLE;
2311
2312 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2313 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
2314 WIPHY_FLAG_AP_UAPSD;
2315 hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR;
2316
2317 /* ask mac80211 to reserve space for magic */
2318 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
2319 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
2320 hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
2321
2322 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
2323 sizeof(hwsim_channels_2ghz));
2324 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
2325 sizeof(hwsim_channels_5ghz));
2326 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
2327
2328 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
2329 struct ieee80211_supported_band *sband = &data->bands[band];
2330 switch (band) {
2331 case IEEE80211_BAND_2GHZ:
2332 sband->channels = data->channels_2ghz;
2333 sband->n_channels =
2334 ARRAY_SIZE(hwsim_channels_2ghz);
2335 sband->bitrates = data->rates;
2336 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
2337 break;
2338 case IEEE80211_BAND_5GHZ:
2339 sband->channels = data->channels_5ghz;
2340 sband->n_channels =
2341 ARRAY_SIZE(hwsim_channels_5ghz);
2342 sband->bitrates = data->rates + 4;
2343 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
2344 break;
2345 default:
2346 continue;
2347 }
2348
2349 sband->ht_cap.ht_supported = true;
2350 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
2351 IEEE80211_HT_CAP_GRN_FLD |
2352 IEEE80211_HT_CAP_SGI_40 |
2353 IEEE80211_HT_CAP_DSSSCCK40;
2354 sband->ht_cap.ampdu_factor = 0x3;
2355 sband->ht_cap.ampdu_density = 0x6;
2356 memset(&sband->ht_cap.mcs, 0,
2357 sizeof(sband->ht_cap.mcs));
2358 sband->ht_cap.mcs.rx_mask[0] = 0xff;
2359 sband->ht_cap.mcs.rx_mask[1] = 0xff;
2360 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2361
2362 hw->wiphy->bands[band] = sband;
2363
2364 sband->vht_cap.vht_supported = true;
2365 sband->vht_cap.cap =
2366 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
2367 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
2368 IEEE80211_VHT_CAP_RXLDPC |
2369 IEEE80211_VHT_CAP_SHORT_GI_80 |
2370 IEEE80211_VHT_CAP_SHORT_GI_160 |
2371 IEEE80211_VHT_CAP_TXSTBC |
2372 IEEE80211_VHT_CAP_RXSTBC_1 |
2373 IEEE80211_VHT_CAP_RXSTBC_2 |
2374 IEEE80211_VHT_CAP_RXSTBC_3 |
2375 IEEE80211_VHT_CAP_RXSTBC_4 |
2376 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
2377 sband->vht_cap.vht_mcs.rx_mcs_map =
2378 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_8 << 0 |
2379 IEEE80211_VHT_MCS_SUPPORT_0_8 << 2 |
2380 IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
2381 IEEE80211_VHT_MCS_SUPPORT_0_8 << 6 |
2382 IEEE80211_VHT_MCS_SUPPORT_0_8 << 8 |
2383 IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
2384 IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
2385 IEEE80211_VHT_MCS_SUPPORT_0_8 << 14);
2386 sband->vht_cap.vht_mcs.tx_mcs_map =
2387 sband->vht_cap.vht_mcs.rx_mcs_map;
2388 }
2389 /* By default all radios are belonging to the first group */
2390 data->group = 1;
2391 mutex_init(&data->mutex);
2392
2393 /* Enable frame retransmissions for lossy channels */
2394 hw->max_rates = 4;
2395 hw->max_rate_tries = 11;
2396
2397 /* Work to be done prior to ieee80211_register_hw() */
2398 switch (regtest) {
2399 case HWSIM_REGTEST_DISABLED:
2400 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
2401 case HWSIM_REGTEST_DRIVER_REG_ALL:
2402 case HWSIM_REGTEST_DIFF_COUNTRY:
2403 /*
2404 * Nothing to be done for driver regulatory domain
2405 * hints prior to ieee80211_register_hw()
2406 */
2407 break;
2408 case HWSIM_REGTEST_WORLD_ROAM:
2409 if (i == 0) {
2410 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
2411 wiphy_apply_custom_regulatory(hw->wiphy,
2412 &hwsim_world_regdom_custom_01);
2413 }
2414 break;
2415 case HWSIM_REGTEST_CUSTOM_WORLD:
2416 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
2417 wiphy_apply_custom_regulatory(hw->wiphy,
2418 &hwsim_world_regdom_custom_01);
2419 break;
2420 case HWSIM_REGTEST_CUSTOM_WORLD_2:
2421 if (i == 0) {
2422 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
2423 wiphy_apply_custom_regulatory(hw->wiphy,
2424 &hwsim_world_regdom_custom_01);
2425 } else if (i == 1) {
2426 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
2427 wiphy_apply_custom_regulatory(hw->wiphy,
2428 &hwsim_world_regdom_custom_02);
2429 }
2430 break;
2431 case HWSIM_REGTEST_STRICT_ALL:
2432 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
2433 break;
2434 case HWSIM_REGTEST_STRICT_FOLLOW:
2435 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
2436 if (i == 0)
2437 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
2438 break;
2439 case HWSIM_REGTEST_ALL:
2440 if (i == 0) {
2441 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
2442 wiphy_apply_custom_regulatory(hw->wiphy,
2443 &hwsim_world_regdom_custom_01);
2444 } else if (i == 1) {
2445 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
2446 wiphy_apply_custom_regulatory(hw->wiphy,
2447 &hwsim_world_regdom_custom_02);
2448 } else if (i == 4)
2449 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
2450 break;
2451 default:
2452 break;
2453 }
2454
2455 /* give the regulatory workqueue a chance to run */
2456 if (regtest)
2457 schedule_timeout_interruptible(1);
2458 err = ieee80211_register_hw(hw);
2459 if (err < 0) {
2460 printk(KERN_DEBUG "mac80211_hwsim: "
2461 "ieee80211_register_hw failed (%d)\n", err);
2462 goto failed_hw;
2463 }
2464
2465 /* Work to be done after to ieee80211_register_hw() */
2466 switch (regtest) {
2467 case HWSIM_REGTEST_WORLD_ROAM:
2468 case HWSIM_REGTEST_DISABLED:
2469 break;
2470 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
2471 if (!i)
2472 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2473 break;
2474 case HWSIM_REGTEST_DRIVER_REG_ALL:
2475 case HWSIM_REGTEST_STRICT_ALL:
2476 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2477 break;
2478 case HWSIM_REGTEST_DIFF_COUNTRY:
2479 if (i < ARRAY_SIZE(hwsim_alpha2s))
2480 regulatory_hint(hw->wiphy, hwsim_alpha2s[i]);
2481 break;
2482 case HWSIM_REGTEST_CUSTOM_WORLD:
2483 case HWSIM_REGTEST_CUSTOM_WORLD_2:
2484 /*
2485 * Nothing to be done for custom world regulatory
2486 * domains after to ieee80211_register_hw
2487 */
2488 break;
2489 case HWSIM_REGTEST_STRICT_FOLLOW:
2490 if (i == 0)
2491 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2492 break;
2493 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
2494 if (i == 0)
2495 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2496 else if (i == 1)
2497 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
2498 break;
2499 case HWSIM_REGTEST_ALL:
2500 if (i == 2)
2501 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2502 else if (i == 3)
2503 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
2504 else if (i == 4)
2505 regulatory_hint(hw->wiphy, hwsim_alpha2s[2]);
2506 break;
2507 default:
2508 break;
2509 }
2510
2511 wiphy_debug(hw->wiphy, "hwaddr %pm registered\n",
2512 hw->wiphy->perm_addr);
2513
2514 data->debugfs = debugfs_create_dir("hwsim",
2515 hw->wiphy->debugfsdir);
2516 data->debugfs_ps = debugfs_create_file("ps", 0666,
2517 data->debugfs, data,
2518 &hwsim_fops_ps);
2519 data->debugfs_group = debugfs_create_file("group", 0666,
2520 data->debugfs, data,
2521 &hwsim_fops_group);
2522
2523 tasklet_hrtimer_init(&data->beacon_timer,
2524 mac80211_hwsim_beacon,
2525 CLOCK_REALTIME, HRTIMER_MODE_ABS);
2526
2527 list_add_tail(&data->list, &hwsim_radios);
2528 }
2529
2530 hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
2531 if (hwsim_mon == NULL) {
2532 err = -ENOMEM;
2533 goto failed;
2534 }
2535
2536 rtnl_lock();
2537
2538 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
2539 if (err < 0)
2540 goto failed_mon;
2541
2542
2543 err = register_netdevice(hwsim_mon);
2544 if (err < 0)
2545 goto failed_mon;
2546
2547 rtnl_unlock();
2548
2549 err = hwsim_init_netlink();
2550 if (err < 0)
2551 goto failed_nl;
2552
2553 return 0;
2554
2555 failed_nl:
2556 printk(KERN_DEBUG "mac_80211_hwsim: failed initializing netlink\n");
2557 return err;
2558
2559 failed_mon:
2560 rtnl_unlock();
2561 free_netdev(hwsim_mon);
2562 mac80211_hwsim_free();
2563 return err;
2564
2565 failed_hw:
2566 device_unregister(data->dev);
2567 failed_drvdata:
2568 ieee80211_free_hw(hw);
2569 failed:
2570 mac80211_hwsim_free();
2571 failed_unregister_driver:
2572 platform_driver_unregister(&mac80211_hwsim_driver);
2573 return err;
2574 }
2575 module_init(init_mac80211_hwsim);
2576
2577 static void __exit exit_mac80211_hwsim(void)
2578 {
2579 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
2580
2581 hwsim_exit_netlink();
2582
2583 mac80211_hwsim_free();
2584 unregister_netdev(hwsim_mon);
2585 platform_driver_unregister(&mac80211_hwsim_driver);
2586 }
2587 module_exit(exit_mac80211_hwsim);
Linux with added FPC-III support