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brcmfmac: remove unnecessary EXPORT_SYMBOL() usage
[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 * 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 bool bcn_en;
171 u16 aid;
172 };
173
174 #define HWSIM_VIF_MAGIC 0x69537748
175
176 static inline void hwsim_check_magic(struct ieee80211_vif *vif)
177 {
178 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
179 WARN(vp->magic != HWSIM_VIF_MAGIC,
180 "Invalid VIF (%p) magic %#x, %pM, %d/%d\n",
181 vif, vp->magic, vif->addr, vif->type, vif->p2p);
182 }
183
184 static inline void hwsim_set_magic(struct ieee80211_vif *vif)
185 {
186 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
187 vp->magic = HWSIM_VIF_MAGIC;
188 }
189
190 static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
191 {
192 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
193 vp->magic = 0;
194 }
195
196 struct hwsim_sta_priv {
197 u32 magic;
198 };
199
200 #define HWSIM_STA_MAGIC 0x6d537749
201
202 static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
203 {
204 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
205 WARN_ON(sp->magic != HWSIM_STA_MAGIC);
206 }
207
208 static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
209 {
210 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
211 sp->magic = HWSIM_STA_MAGIC;
212 }
213
214 static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
215 {
216 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
217 sp->magic = 0;
218 }
219
220 struct hwsim_chanctx_priv {
221 u32 magic;
222 };
223
224 #define HWSIM_CHANCTX_MAGIC 0x6d53774a
225
226 static inline void hwsim_check_chanctx_magic(struct ieee80211_chanctx_conf *c)
227 {
228 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
229 WARN_ON(cp->magic != HWSIM_CHANCTX_MAGIC);
230 }
231
232 static inline void hwsim_set_chanctx_magic(struct ieee80211_chanctx_conf *c)
233 {
234 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
235 cp->magic = HWSIM_CHANCTX_MAGIC;
236 }
237
238 static inline void hwsim_clear_chanctx_magic(struct ieee80211_chanctx_conf *c)
239 {
240 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
241 cp->magic = 0;
242 }
243
244 static struct class *hwsim_class;
245
246 static struct net_device *hwsim_mon; /* global monitor netdev */
247
248 #define CHAN2G(_freq) { \
249 .band = IEEE80211_BAND_2GHZ, \
250 .center_freq = (_freq), \
251 .hw_value = (_freq), \
252 .max_power = 20, \
253 }
254
255 #define CHAN5G(_freq) { \
256 .band = IEEE80211_BAND_5GHZ, \
257 .center_freq = (_freq), \
258 .hw_value = (_freq), \
259 .max_power = 20, \
260 }
261
262 static const struct ieee80211_channel hwsim_channels_2ghz[] = {
263 CHAN2G(2412), /* Channel 1 */
264 CHAN2G(2417), /* Channel 2 */
265 CHAN2G(2422), /* Channel 3 */
266 CHAN2G(2427), /* Channel 4 */
267 CHAN2G(2432), /* Channel 5 */
268 CHAN2G(2437), /* Channel 6 */
269 CHAN2G(2442), /* Channel 7 */
270 CHAN2G(2447), /* Channel 8 */
271 CHAN2G(2452), /* Channel 9 */
272 CHAN2G(2457), /* Channel 10 */
273 CHAN2G(2462), /* Channel 11 */
274 CHAN2G(2467), /* Channel 12 */
275 CHAN2G(2472), /* Channel 13 */
276 CHAN2G(2484), /* Channel 14 */
277 };
278
279 static const struct ieee80211_channel hwsim_channels_5ghz[] = {
280 CHAN5G(5180), /* Channel 36 */
281 CHAN5G(5200), /* Channel 40 */
282 CHAN5G(5220), /* Channel 44 */
283 CHAN5G(5240), /* Channel 48 */
284
285 CHAN5G(5260), /* Channel 52 */
286 CHAN5G(5280), /* Channel 56 */
287 CHAN5G(5300), /* Channel 60 */
288 CHAN5G(5320), /* Channel 64 */
289
290 CHAN5G(5500), /* Channel 100 */
291 CHAN5G(5520), /* Channel 104 */
292 CHAN5G(5540), /* Channel 108 */
293 CHAN5G(5560), /* Channel 112 */
294 CHAN5G(5580), /* Channel 116 */
295 CHAN5G(5600), /* Channel 120 */
296 CHAN5G(5620), /* Channel 124 */
297 CHAN5G(5640), /* Channel 128 */
298 CHAN5G(5660), /* Channel 132 */
299 CHAN5G(5680), /* Channel 136 */
300 CHAN5G(5700), /* Channel 140 */
301
302 CHAN5G(5745), /* Channel 149 */
303 CHAN5G(5765), /* Channel 153 */
304 CHAN5G(5785), /* Channel 157 */
305 CHAN5G(5805), /* Channel 161 */
306 CHAN5G(5825), /* Channel 165 */
307 };
308
309 static const struct ieee80211_rate hwsim_rates[] = {
310 { .bitrate = 10 },
311 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
312 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
313 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
314 { .bitrate = 60 },
315 { .bitrate = 90 },
316 { .bitrate = 120 },
317 { .bitrate = 180 },
318 { .bitrate = 240 },
319 { .bitrate = 360 },
320 { .bitrate = 480 },
321 { .bitrate = 540 }
322 };
323
324 static spinlock_t hwsim_radio_lock;
325 static struct list_head hwsim_radios;
326
327 struct mac80211_hwsim_data {
328 struct list_head list;
329 struct ieee80211_hw *hw;
330 struct device *dev;
331 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
332 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
333 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
334 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
335
336 struct mac_address addresses[2];
337
338 struct ieee80211_channel *tmp_chan;
339 struct delayed_work roc_done;
340 struct delayed_work hw_scan;
341 struct cfg80211_scan_request *hw_scan_request;
342 struct ieee80211_vif *hw_scan_vif;
343 int scan_chan_idx;
344
345 struct ieee80211_channel *channel;
346 u64 beacon_int /* beacon interval in us */;
347 unsigned int rx_filter;
348 bool started, idle, scanning;
349 struct mutex mutex;
350 struct tasklet_hrtimer beacon_timer;
351 enum ps_mode {
352 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
353 } ps;
354 bool ps_poll_pending;
355 struct dentry *debugfs;
356 struct dentry *debugfs_ps;
357
358 struct sk_buff_head pending; /* packets pending */
359 /*
360 * Only radios in the same group can communicate together (the
361 * channel has to match too). Each bit represents a group. A
362 * radio can be in more then one group.
363 */
364 u64 group;
365 struct dentry *debugfs_group;
366
367 int power_level;
368
369 /* difference between this hw's clock and the real clock, in usecs */
370 s64 tsf_offset;
371 s64 bcn_delta;
372 /* absolute beacon transmission time. Used to cover up "tx" delay. */
373 u64 abs_bcn_ts;
374 };
375
376
377 struct hwsim_radiotap_hdr {
378 struct ieee80211_radiotap_header hdr;
379 __le64 rt_tsft;
380 u8 rt_flags;
381 u8 rt_rate;
382 __le16 rt_channel;
383 __le16 rt_chbitmask;
384 } __packed;
385
386 /* MAC80211_HWSIM netlinf family */
387 static struct genl_family hwsim_genl_family = {
388 .id = GENL_ID_GENERATE,
389 .hdrsize = 0,
390 .name = "MAC80211_HWSIM",
391 .version = 1,
392 .maxattr = HWSIM_ATTR_MAX,
393 };
394
395 /* MAC80211_HWSIM netlink policy */
396
397 static struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
398 [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC,
399 .len = 6*sizeof(u8) },
400 [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC,
401 .len = 6*sizeof(u8) },
402 [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
403 .len = IEEE80211_MAX_DATA_LEN },
404 [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
405 [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
406 [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
407 [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC,
408 .len = IEEE80211_TX_MAX_RATES*sizeof(
409 struct hwsim_tx_rate)},
410 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
411 };
412
413 static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
414 struct net_device *dev)
415 {
416 /* TODO: allow packet injection */
417 dev_kfree_skb(skb);
418 return NETDEV_TX_OK;
419 }
420
421 static inline u64 mac80211_hwsim_get_tsf_raw(void)
422 {
423 return ktime_to_us(ktime_get_real());
424 }
425
426 static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
427 {
428 u64 now = mac80211_hwsim_get_tsf_raw();
429 return cpu_to_le64(now + data->tsf_offset);
430 }
431
432 static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
433 struct ieee80211_vif *vif)
434 {
435 struct mac80211_hwsim_data *data = hw->priv;
436 return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
437 }
438
439 static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
440 struct ieee80211_vif *vif, u64 tsf)
441 {
442 struct mac80211_hwsim_data *data = hw->priv;
443 u64 now = mac80211_hwsim_get_tsf(hw, vif);
444 u32 bcn_int = data->beacon_int;
445 s64 delta = tsf - now;
446
447 data->tsf_offset += delta;
448 /* adjust after beaconing with new timestamp at old TBTT */
449 data->bcn_delta = do_div(delta, bcn_int);
450 }
451
452 static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
453 struct sk_buff *tx_skb,
454 struct ieee80211_channel *chan)
455 {
456 struct mac80211_hwsim_data *data = hw->priv;
457 struct sk_buff *skb;
458 struct hwsim_radiotap_hdr *hdr;
459 u16 flags;
460 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
461 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
462
463 if (!netif_running(hwsim_mon))
464 return;
465
466 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
467 if (skb == NULL)
468 return;
469
470 hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
471 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
472 hdr->hdr.it_pad = 0;
473 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
474 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
475 (1 << IEEE80211_RADIOTAP_RATE) |
476 (1 << IEEE80211_RADIOTAP_TSFT) |
477 (1 << IEEE80211_RADIOTAP_CHANNEL));
478 hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
479 hdr->rt_flags = 0;
480 hdr->rt_rate = txrate->bitrate / 5;
481 hdr->rt_channel = cpu_to_le16(chan->center_freq);
482 flags = IEEE80211_CHAN_2GHZ;
483 if (txrate->flags & IEEE80211_RATE_ERP_G)
484 flags |= IEEE80211_CHAN_OFDM;
485 else
486 flags |= IEEE80211_CHAN_CCK;
487 hdr->rt_chbitmask = cpu_to_le16(flags);
488
489 skb->dev = hwsim_mon;
490 skb_set_mac_header(skb, 0);
491 skb->ip_summed = CHECKSUM_UNNECESSARY;
492 skb->pkt_type = PACKET_OTHERHOST;
493 skb->protocol = htons(ETH_P_802_2);
494 memset(skb->cb, 0, sizeof(skb->cb));
495 netif_rx(skb);
496 }
497
498
499 static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
500 const u8 *addr)
501 {
502 struct sk_buff *skb;
503 struct hwsim_radiotap_hdr *hdr;
504 u16 flags;
505 struct ieee80211_hdr *hdr11;
506
507 if (!netif_running(hwsim_mon))
508 return;
509
510 skb = dev_alloc_skb(100);
511 if (skb == NULL)
512 return;
513
514 hdr = (struct hwsim_radiotap_hdr *) skb_put(skb, sizeof(*hdr));
515 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
516 hdr->hdr.it_pad = 0;
517 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
518 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
519 (1 << IEEE80211_RADIOTAP_CHANNEL));
520 hdr->rt_flags = 0;
521 hdr->rt_rate = 0;
522 hdr->rt_channel = cpu_to_le16(chan->center_freq);
523 flags = IEEE80211_CHAN_2GHZ;
524 hdr->rt_chbitmask = cpu_to_le16(flags);
525
526 hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
527 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
528 IEEE80211_STYPE_ACK);
529 hdr11->duration_id = cpu_to_le16(0);
530 memcpy(hdr11->addr1, addr, ETH_ALEN);
531
532 skb->dev = hwsim_mon;
533 skb_set_mac_header(skb, 0);
534 skb->ip_summed = CHECKSUM_UNNECESSARY;
535 skb->pkt_type = PACKET_OTHERHOST;
536 skb->protocol = htons(ETH_P_802_2);
537 memset(skb->cb, 0, sizeof(skb->cb));
538 netif_rx(skb);
539 }
540
541
542 static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
543 struct sk_buff *skb)
544 {
545 switch (data->ps) {
546 case PS_DISABLED:
547 return true;
548 case PS_ENABLED:
549 return false;
550 case PS_AUTO_POLL:
551 /* TODO: accept (some) Beacons by default and other frames only
552 * if pending PS-Poll has been sent */
553 return true;
554 case PS_MANUAL_POLL:
555 /* Allow unicast frames to own address if there is a pending
556 * PS-Poll */
557 if (data->ps_poll_pending &&
558 memcmp(data->hw->wiphy->perm_addr, skb->data + 4,
559 ETH_ALEN) == 0) {
560 data->ps_poll_pending = false;
561 return true;
562 }
563 return false;
564 }
565
566 return true;
567 }
568
569
570 struct mac80211_hwsim_addr_match_data {
571 bool ret;
572 const u8 *addr;
573 };
574
575 static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
576 struct ieee80211_vif *vif)
577 {
578 struct mac80211_hwsim_addr_match_data *md = data;
579 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
580 md->ret = true;
581 }
582
583
584 static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
585 const u8 *addr)
586 {
587 struct mac80211_hwsim_addr_match_data md;
588
589 if (memcmp(addr, data->hw->wiphy->perm_addr, ETH_ALEN) == 0)
590 return true;
591
592 md.ret = false;
593 md.addr = addr;
594 ieee80211_iterate_active_interfaces_atomic(data->hw,
595 IEEE80211_IFACE_ITER_NORMAL,
596 mac80211_hwsim_addr_iter,
597 &md);
598
599 return md.ret;
600 }
601
602 static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
603 struct sk_buff *my_skb,
604 int dst_portid)
605 {
606 struct sk_buff *skb;
607 struct mac80211_hwsim_data *data = hw->priv;
608 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
609 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
610 void *msg_head;
611 unsigned int hwsim_flags = 0;
612 int i;
613 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
614
615 if (data->ps != PS_DISABLED)
616 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
617 /* If the queue contains MAX_QUEUE skb's drop some */
618 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
619 /* Droping until WARN_QUEUE level */
620 while (skb_queue_len(&data->pending) >= WARN_QUEUE)
621 skb_dequeue(&data->pending);
622 }
623
624 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
625 if (skb == NULL)
626 goto nla_put_failure;
627
628 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
629 HWSIM_CMD_FRAME);
630 if (msg_head == NULL) {
631 printk(KERN_DEBUG "mac80211_hwsim: problem with msg_head\n");
632 goto nla_put_failure;
633 }
634
635 if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
636 sizeof(struct mac_address), data->addresses[1].addr))
637 goto nla_put_failure;
638
639 /* We get the skb->data */
640 if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
641 goto nla_put_failure;
642
643 /* We get the flags for this transmission, and we translate them to
644 wmediumd flags */
645
646 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
647 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
648
649 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
650 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
651
652 if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
653 goto nla_put_failure;
654
655 /* We get the tx control (rate and retries) info*/
656
657 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
658 tx_attempts[i].idx = info->status.rates[i].idx;
659 tx_attempts[i].count = info->status.rates[i].count;
660 }
661
662 if (nla_put(skb, HWSIM_ATTR_TX_INFO,
663 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
664 tx_attempts))
665 goto nla_put_failure;
666
667 /* We create a cookie to identify this skb */
668 if (nla_put_u64(skb, HWSIM_ATTR_COOKIE, (unsigned long) my_skb))
669 goto nla_put_failure;
670
671 genlmsg_end(skb, msg_head);
672 genlmsg_unicast(&init_net, skb, dst_portid);
673
674 /* Enqueue the packet */
675 skb_queue_tail(&data->pending, my_skb);
676 return;
677
678 nla_put_failure:
679 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
680 }
681
682 static bool hwsim_chans_compat(struct ieee80211_channel *c1,
683 struct ieee80211_channel *c2)
684 {
685 if (!c1 || !c2)
686 return false;
687
688 return c1->center_freq == c2->center_freq;
689 }
690
691 struct tx_iter_data {
692 struct ieee80211_channel *channel;
693 bool receive;
694 };
695
696 static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
697 struct ieee80211_vif *vif)
698 {
699 struct tx_iter_data *data = _data;
700
701 if (!vif->chanctx_conf)
702 return;
703
704 if (!hwsim_chans_compat(data->channel,
705 rcu_dereference(vif->chanctx_conf)->def.chan))
706 return;
707
708 data->receive = true;
709 }
710
711 static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
712 struct sk_buff *skb,
713 struct ieee80211_channel *chan)
714 {
715 struct mac80211_hwsim_data *data = hw->priv, *data2;
716 bool ack = false;
717 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
718 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
719 struct ieee80211_rx_status rx_status;
720 u64 now;
721
722 memset(&rx_status, 0, sizeof(rx_status));
723 rx_status.flag |= RX_FLAG_MACTIME_START;
724 rx_status.freq = chan->center_freq;
725 rx_status.band = chan->band;
726 if (info->control.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) {
727 rx_status.rate_idx =
728 ieee80211_rate_get_vht_mcs(&info->control.rates[0]);
729 rx_status.vht_nss =
730 ieee80211_rate_get_vht_nss(&info->control.rates[0]);
731 rx_status.flag |= RX_FLAG_VHT;
732 } else {
733 rx_status.rate_idx = info->control.rates[0].idx;
734 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
735 rx_status.flag |= RX_FLAG_HT;
736 }
737 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
738 rx_status.flag |= RX_FLAG_40MHZ;
739 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
740 rx_status.flag |= RX_FLAG_SHORT_GI;
741 /* TODO: simulate real signal strength (and optional packet loss) */
742 rx_status.signal = data->power_level - 50;
743
744 if (data->ps != PS_DISABLED)
745 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
746
747 /* release the skb's source info */
748 skb_orphan(skb);
749 skb_dst_drop(skb);
750 skb->mark = 0;
751 secpath_reset(skb);
752 nf_reset(skb);
753
754 /*
755 * Get absolute mactime here so all HWs RX at the "same time", and
756 * absolute TX time for beacon mactime so the timestamp matches.
757 * Giving beacons a different mactime than non-beacons looks messy, but
758 * it helps the Toffset be exact and a ~10us mactime discrepancy
759 * probably doesn't really matter.
760 */
761 if (ieee80211_is_beacon(hdr->frame_control) ||
762 ieee80211_is_probe_resp(hdr->frame_control))
763 now = data->abs_bcn_ts;
764 else
765 now = mac80211_hwsim_get_tsf_raw();
766
767 /* Copy skb to all enabled radios that are on the current frequency */
768 spin_lock(&hwsim_radio_lock);
769 list_for_each_entry(data2, &hwsim_radios, list) {
770 struct sk_buff *nskb;
771 struct tx_iter_data tx_iter_data = {
772 .receive = false,
773 .channel = chan,
774 };
775
776 if (data == data2)
777 continue;
778
779 if (!data2->started || (data2->idle && !data2->tmp_chan) ||
780 !hwsim_ps_rx_ok(data2, skb))
781 continue;
782
783 if (!(data->group & data2->group))
784 continue;
785
786 if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
787 !hwsim_chans_compat(chan, data2->channel)) {
788 ieee80211_iterate_active_interfaces_atomic(
789 data2->hw, IEEE80211_IFACE_ITER_NORMAL,
790 mac80211_hwsim_tx_iter, &tx_iter_data);
791 if (!tx_iter_data.receive)
792 continue;
793 }
794
795 /*
796 * reserve some space for our vendor and the normal
797 * radiotap header, since we're copying anyway
798 */
799 if (skb->len < PAGE_SIZE && paged_rx) {
800 struct page *page = alloc_page(GFP_ATOMIC);
801
802 if (!page)
803 continue;
804
805 nskb = dev_alloc_skb(128);
806 if (!nskb) {
807 __free_page(page);
808 continue;
809 }
810
811 memcpy(page_address(page), skb->data, skb->len);
812 skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
813 } else {
814 nskb = skb_copy(skb, GFP_ATOMIC);
815 if (!nskb)
816 continue;
817 }
818
819 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
820 ack = true;
821
822 rx_status.mactime = now + data2->tsf_offset;
823 #if 0
824 /*
825 * Don't enable this code by default as the OUI 00:00:00
826 * is registered to Xerox so we shouldn't use it here, it
827 * might find its way into pcap files.
828 * Note that this code requires the headroom in the SKB
829 * that was allocated earlier.
830 */
831 rx_status.vendor_radiotap_oui[0] = 0x00;
832 rx_status.vendor_radiotap_oui[1] = 0x00;
833 rx_status.vendor_radiotap_oui[2] = 0x00;
834 rx_status.vendor_radiotap_subns = 127;
835 /*
836 * Radiotap vendor namespaces can (and should) also be
837 * split into fields by using the standard radiotap
838 * presence bitmap mechanism. Use just BIT(0) here for
839 * the presence bitmap.
840 */
841 rx_status.vendor_radiotap_bitmap = BIT(0);
842 /* We have 8 bytes of (dummy) data */
843 rx_status.vendor_radiotap_len = 8;
844 /* For testing, also require it to be aligned */
845 rx_status.vendor_radiotap_align = 8;
846 /* push the data */
847 memcpy(skb_push(nskb, 8), "ABCDEFGH", 8);
848 #endif
849
850 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
851 ieee80211_rx_irqsafe(data2->hw, nskb);
852 }
853 spin_unlock(&hwsim_radio_lock);
854
855 return ack;
856 }
857
858 static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
859 struct ieee80211_tx_control *control,
860 struct sk_buff *skb)
861 {
862 struct mac80211_hwsim_data *data = hw->priv;
863 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
864 struct ieee80211_chanctx_conf *chanctx_conf;
865 struct ieee80211_channel *channel;
866 bool ack;
867 u32 _portid;
868
869 if (WARN_ON(skb->len < 10)) {
870 /* Should not happen; just a sanity check for addr1 use */
871 ieee80211_free_txskb(hw, skb);
872 return;
873 }
874
875 if (channels == 1) {
876 channel = data->channel;
877 } else if (txi->hw_queue == 4) {
878 channel = data->tmp_chan;
879 } else {
880 chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf);
881 if (chanctx_conf)
882 channel = chanctx_conf->def.chan;
883 else
884 channel = NULL;
885 }
886
887 if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
888 ieee80211_free_txskb(hw, skb);
889 return;
890 }
891
892 if (data->idle && !data->tmp_chan) {
893 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
894 ieee80211_free_txskb(hw, skb);
895 return;
896 }
897
898 if (txi->control.vif)
899 hwsim_check_magic(txi->control.vif);
900 if (control->sta)
901 hwsim_check_sta_magic(control->sta);
902
903 if (rctbl)
904 ieee80211_get_tx_rates(txi->control.vif, control->sta, skb,
905 txi->control.rates,
906 ARRAY_SIZE(txi->control.rates));
907
908 txi->rate_driver_data[0] = channel;
909 mac80211_hwsim_monitor_rx(hw, skb, channel);
910
911 /* wmediumd mode check */
912 _portid = ACCESS_ONCE(wmediumd_portid);
913
914 if (_portid)
915 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
916
917 /* NO wmediumd detected, perfect medium simulation */
918 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
919
920 if (ack && skb->len >= 16) {
921 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
922 mac80211_hwsim_monitor_ack(channel, hdr->addr2);
923 }
924
925 ieee80211_tx_info_clear_status(txi);
926
927 /* frame was transmitted at most favorable rate at first attempt */
928 txi->control.rates[0].count = 1;
929 txi->control.rates[1].idx = -1;
930
931 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
932 txi->flags |= IEEE80211_TX_STAT_ACK;
933 ieee80211_tx_status_irqsafe(hw, skb);
934 }
935
936
937 static int mac80211_hwsim_start(struct ieee80211_hw *hw)
938 {
939 struct mac80211_hwsim_data *data = hw->priv;
940 wiphy_debug(hw->wiphy, "%s\n", __func__);
941 data->started = true;
942 return 0;
943 }
944
945
946 static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
947 {
948 struct mac80211_hwsim_data *data = hw->priv;
949 data->started = false;
950 tasklet_hrtimer_cancel(&data->beacon_timer);
951 wiphy_debug(hw->wiphy, "%s\n", __func__);
952 }
953
954
955 static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
956 struct ieee80211_vif *vif)
957 {
958 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
959 __func__, ieee80211_vif_type_p2p(vif),
960 vif->addr);
961 hwsim_set_magic(vif);
962
963 vif->cab_queue = 0;
964 vif->hw_queue[IEEE80211_AC_VO] = 0;
965 vif->hw_queue[IEEE80211_AC_VI] = 1;
966 vif->hw_queue[IEEE80211_AC_BE] = 2;
967 vif->hw_queue[IEEE80211_AC_BK] = 3;
968
969 return 0;
970 }
971
972
973 static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
974 struct ieee80211_vif *vif,
975 enum nl80211_iftype newtype,
976 bool newp2p)
977 {
978 newtype = ieee80211_iftype_p2p(newtype, newp2p);
979 wiphy_debug(hw->wiphy,
980 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
981 __func__, ieee80211_vif_type_p2p(vif),
982 newtype, vif->addr);
983 hwsim_check_magic(vif);
984
985 /*
986 * interface may change from non-AP to AP in
987 * which case this needs to be set up again
988 */
989 vif->cab_queue = 0;
990
991 return 0;
992 }
993
994 static void mac80211_hwsim_remove_interface(
995 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
996 {
997 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
998 __func__, ieee80211_vif_type_p2p(vif),
999 vif->addr);
1000 hwsim_check_magic(vif);
1001 hwsim_clear_magic(vif);
1002 }
1003
1004 static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
1005 struct sk_buff *skb,
1006 struct ieee80211_channel *chan)
1007 {
1008 u32 _pid = ACCESS_ONCE(wmediumd_portid);
1009
1010 if (rctbl) {
1011 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1012 ieee80211_get_tx_rates(txi->control.vif, NULL, skb,
1013 txi->control.rates,
1014 ARRAY_SIZE(txi->control.rates));
1015 }
1016
1017 mac80211_hwsim_monitor_rx(hw, skb, chan);
1018
1019 if (_pid)
1020 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
1021
1022 mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
1023 dev_kfree_skb(skb);
1024 }
1025
1026 static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
1027 struct ieee80211_vif *vif)
1028 {
1029 struct mac80211_hwsim_data *data = arg;
1030 struct ieee80211_hw *hw = data->hw;
1031 struct ieee80211_tx_info *info;
1032 struct ieee80211_rate *txrate;
1033 struct ieee80211_mgmt *mgmt;
1034 struct sk_buff *skb;
1035
1036 hwsim_check_magic(vif);
1037
1038 if (vif->type != NL80211_IFTYPE_AP &&
1039 vif->type != NL80211_IFTYPE_MESH_POINT &&
1040 vif->type != NL80211_IFTYPE_ADHOC)
1041 return;
1042
1043 skb = ieee80211_beacon_get(hw, vif);
1044 if (skb == NULL)
1045 return;
1046 info = IEEE80211_SKB_CB(skb);
1047 if (rctbl)
1048 ieee80211_get_tx_rates(vif, NULL, skb,
1049 info->control.rates,
1050 ARRAY_SIZE(info->control.rates));
1051
1052 txrate = ieee80211_get_tx_rate(hw, info);
1053
1054 mgmt = (struct ieee80211_mgmt *) skb->data;
1055 /* fake header transmission time */
1056 data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
1057 mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
1058 data->tsf_offset +
1059 24 * 8 * 10 / txrate->bitrate);
1060
1061 mac80211_hwsim_tx_frame(hw, skb,
1062 rcu_dereference(vif->chanctx_conf)->def.chan);
1063 }
1064
1065 static enum hrtimer_restart
1066 mac80211_hwsim_beacon(struct hrtimer *timer)
1067 {
1068 struct mac80211_hwsim_data *data =
1069 container_of(timer, struct mac80211_hwsim_data,
1070 beacon_timer.timer);
1071 struct ieee80211_hw *hw = data->hw;
1072 u64 bcn_int = data->beacon_int;
1073 ktime_t next_bcn;
1074
1075 if (!data->started)
1076 goto out;
1077
1078 ieee80211_iterate_active_interfaces_atomic(
1079 hw, IEEE80211_IFACE_ITER_NORMAL,
1080 mac80211_hwsim_beacon_tx, data);
1081
1082 /* beacon at new TBTT + beacon interval */
1083 if (data->bcn_delta) {
1084 bcn_int -= data->bcn_delta;
1085 data->bcn_delta = 0;
1086 }
1087
1088 next_bcn = ktime_add(hrtimer_get_expires(timer),
1089 ns_to_ktime(bcn_int * 1000));
1090 tasklet_hrtimer_start(&data->beacon_timer, next_bcn, HRTIMER_MODE_ABS);
1091 out:
1092 return HRTIMER_NORESTART;
1093 }
1094
1095 static const char * const hwsim_chanwidths[] = {
1096 [NL80211_CHAN_WIDTH_20_NOHT] = "noht",
1097 [NL80211_CHAN_WIDTH_20] = "ht20",
1098 [NL80211_CHAN_WIDTH_40] = "ht40",
1099 [NL80211_CHAN_WIDTH_80] = "vht80",
1100 [NL80211_CHAN_WIDTH_80P80] = "vht80p80",
1101 [NL80211_CHAN_WIDTH_160] = "vht160",
1102 };
1103
1104 static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
1105 {
1106 struct mac80211_hwsim_data *data = hw->priv;
1107 struct ieee80211_conf *conf = &hw->conf;
1108 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
1109 [IEEE80211_SMPS_AUTOMATIC] = "auto",
1110 [IEEE80211_SMPS_OFF] = "off",
1111 [IEEE80211_SMPS_STATIC] = "static",
1112 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
1113 };
1114
1115 if (conf->chandef.chan)
1116 wiphy_debug(hw->wiphy,
1117 "%s (freq=%d(%d - %d)/%s idle=%d ps=%d smps=%s)\n",
1118 __func__,
1119 conf->chandef.chan->center_freq,
1120 conf->chandef.center_freq1,
1121 conf->chandef.center_freq2,
1122 hwsim_chanwidths[conf->chandef.width],
1123 !!(conf->flags & IEEE80211_CONF_IDLE),
1124 !!(conf->flags & IEEE80211_CONF_PS),
1125 smps_modes[conf->smps_mode]);
1126 else
1127 wiphy_debug(hw->wiphy,
1128 "%s (freq=0 idle=%d ps=%d smps=%s)\n",
1129 __func__,
1130 !!(conf->flags & IEEE80211_CONF_IDLE),
1131 !!(conf->flags & IEEE80211_CONF_PS),
1132 smps_modes[conf->smps_mode]);
1133
1134 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1135
1136 data->channel = conf->chandef.chan;
1137
1138 WARN_ON(data->channel && channels > 1);
1139
1140 data->power_level = conf->power_level;
1141 if (!data->started || !data->beacon_int)
1142 tasklet_hrtimer_cancel(&data->beacon_timer);
1143 else if (!hrtimer_is_queued(&data->beacon_timer.timer)) {
1144 u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
1145 u32 bcn_int = data->beacon_int;
1146 u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1147
1148 tasklet_hrtimer_start(&data->beacon_timer,
1149 ns_to_ktime(until_tbtt * 1000),
1150 HRTIMER_MODE_REL);
1151 }
1152
1153 return 0;
1154 }
1155
1156
1157 static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
1158 unsigned int changed_flags,
1159 unsigned int *total_flags,u64 multicast)
1160 {
1161 struct mac80211_hwsim_data *data = hw->priv;
1162
1163 wiphy_debug(hw->wiphy, "%s\n", __func__);
1164
1165 data->rx_filter = 0;
1166 if (*total_flags & FIF_PROMISC_IN_BSS)
1167 data->rx_filter |= FIF_PROMISC_IN_BSS;
1168 if (*total_flags & FIF_ALLMULTI)
1169 data->rx_filter |= FIF_ALLMULTI;
1170
1171 *total_flags = data->rx_filter;
1172 }
1173
1174 static void mac80211_hwsim_bcn_en_iter(void *data, u8 *mac,
1175 struct ieee80211_vif *vif)
1176 {
1177 unsigned int *count = data;
1178 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1179
1180 if (vp->bcn_en)
1181 (*count)++;
1182 }
1183
1184 static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
1185 struct ieee80211_vif *vif,
1186 struct ieee80211_bss_conf *info,
1187 u32 changed)
1188 {
1189 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1190 struct mac80211_hwsim_data *data = hw->priv;
1191
1192 hwsim_check_magic(vif);
1193
1194 wiphy_debug(hw->wiphy, "%s(changed=0x%x vif->addr=%pM)\n",
1195 __func__, changed, vif->addr);
1196
1197 if (changed & BSS_CHANGED_BSSID) {
1198 wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
1199 __func__, info->bssid);
1200 memcpy(vp->bssid, info->bssid, ETH_ALEN);
1201 }
1202
1203 if (changed & BSS_CHANGED_ASSOC) {
1204 wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
1205 info->assoc, info->aid);
1206 vp->assoc = info->assoc;
1207 vp->aid = info->aid;
1208 }
1209
1210 if (changed & BSS_CHANGED_BEACON_INT) {
1211 wiphy_debug(hw->wiphy, " BCNINT: %d\n", info->beacon_int);
1212 data->beacon_int = info->beacon_int * 1024;
1213 }
1214
1215 if (changed & BSS_CHANGED_BEACON_ENABLED) {
1216 wiphy_debug(hw->wiphy, " BCN EN: %d\n", info->enable_beacon);
1217 vp->bcn_en = info->enable_beacon;
1218 if (data->started &&
1219 !hrtimer_is_queued(&data->beacon_timer.timer) &&
1220 info->enable_beacon) {
1221 u64 tsf, until_tbtt;
1222 u32 bcn_int;
1223 if (WARN_ON(!data->beacon_int))
1224 data->beacon_int = 1000 * 1024;
1225 tsf = mac80211_hwsim_get_tsf(hw, vif);
1226 bcn_int = data->beacon_int;
1227 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1228 tasklet_hrtimer_start(&data->beacon_timer,
1229 ns_to_ktime(until_tbtt * 1000),
1230 HRTIMER_MODE_REL);
1231 } else if (!info->enable_beacon) {
1232 unsigned int count = 0;
1233 ieee80211_iterate_active_interfaces(
1234 data->hw, IEEE80211_IFACE_ITER_NORMAL,
1235 mac80211_hwsim_bcn_en_iter, &count);
1236 wiphy_debug(hw->wiphy, " beaconing vifs remaining: %u",
1237 count);
1238 if (count == 0)
1239 tasklet_hrtimer_cancel(&data->beacon_timer);
1240 }
1241 }
1242
1243 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
1244 wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
1245 info->use_cts_prot);
1246 }
1247
1248 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
1249 wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
1250 info->use_short_preamble);
1251 }
1252
1253 if (changed & BSS_CHANGED_ERP_SLOT) {
1254 wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
1255 }
1256
1257 if (changed & BSS_CHANGED_HT) {
1258 wiphy_debug(hw->wiphy, " HT: op_mode=0x%x\n",
1259 info->ht_operation_mode);
1260 }
1261
1262 if (changed & BSS_CHANGED_BASIC_RATES) {
1263 wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
1264 (unsigned long long) info->basic_rates);
1265 }
1266
1267 if (changed & BSS_CHANGED_TXPOWER)
1268 wiphy_debug(hw->wiphy, " TX Power: %d dBm\n", info->txpower);
1269 }
1270
1271 static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
1272 struct ieee80211_vif *vif,
1273 struct ieee80211_sta *sta)
1274 {
1275 hwsim_check_magic(vif);
1276 hwsim_set_sta_magic(sta);
1277
1278 return 0;
1279 }
1280
1281 static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
1282 struct ieee80211_vif *vif,
1283 struct ieee80211_sta *sta)
1284 {
1285 hwsim_check_magic(vif);
1286 hwsim_clear_sta_magic(sta);
1287
1288 return 0;
1289 }
1290
1291 static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
1292 struct ieee80211_vif *vif,
1293 enum sta_notify_cmd cmd,
1294 struct ieee80211_sta *sta)
1295 {
1296 hwsim_check_magic(vif);
1297
1298 switch (cmd) {
1299 case STA_NOTIFY_SLEEP:
1300 case STA_NOTIFY_AWAKE:
1301 /* TODO: make good use of these flags */
1302 break;
1303 default:
1304 WARN(1, "Invalid sta notify: %d\n", cmd);
1305 break;
1306 }
1307 }
1308
1309 static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
1310 struct ieee80211_sta *sta,
1311 bool set)
1312 {
1313 hwsim_check_sta_magic(sta);
1314 return 0;
1315 }
1316
1317 static int mac80211_hwsim_conf_tx(
1318 struct ieee80211_hw *hw,
1319 struct ieee80211_vif *vif, u16 queue,
1320 const struct ieee80211_tx_queue_params *params)
1321 {
1322 wiphy_debug(hw->wiphy,
1323 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1324 __func__, queue,
1325 params->txop, params->cw_min,
1326 params->cw_max, params->aifs);
1327 return 0;
1328 }
1329
1330 static int mac80211_hwsim_get_survey(
1331 struct ieee80211_hw *hw, int idx,
1332 struct survey_info *survey)
1333 {
1334 struct ieee80211_conf *conf = &hw->conf;
1335
1336 wiphy_debug(hw->wiphy, "%s (idx=%d)\n", __func__, idx);
1337
1338 if (idx != 0)
1339 return -ENOENT;
1340
1341 /* Current channel */
1342 survey->channel = conf->chandef.chan;
1343
1344 /*
1345 * Magically conjured noise level --- this is only ok for simulated hardware.
1346 *
1347 * A real driver which cannot determine the real channel noise MUST NOT
1348 * report any noise, especially not a magically conjured one :-)
1349 */
1350 survey->filled = SURVEY_INFO_NOISE_DBM;
1351 survey->noise = -92;
1352
1353 return 0;
1354 }
1355
1356 #ifdef CONFIG_NL80211_TESTMODE
1357 /*
1358 * This section contains example code for using netlink
1359 * attributes with the testmode command in nl80211.
1360 */
1361
1362 /* These enums need to be kept in sync with userspace */
1363 enum hwsim_testmode_attr {
1364 __HWSIM_TM_ATTR_INVALID = 0,
1365 HWSIM_TM_ATTR_CMD = 1,
1366 HWSIM_TM_ATTR_PS = 2,
1367
1368 /* keep last */
1369 __HWSIM_TM_ATTR_AFTER_LAST,
1370 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1371 };
1372
1373 enum hwsim_testmode_cmd {
1374 HWSIM_TM_CMD_SET_PS = 0,
1375 HWSIM_TM_CMD_GET_PS = 1,
1376 HWSIM_TM_CMD_STOP_QUEUES = 2,
1377 HWSIM_TM_CMD_WAKE_QUEUES = 3,
1378 };
1379
1380 static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1381 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1382 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1383 };
1384
1385 static int hwsim_fops_ps_write(void *dat, u64 val);
1386
1387 static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
1388 struct ieee80211_vif *vif,
1389 void *data, int len)
1390 {
1391 struct mac80211_hwsim_data *hwsim = hw->priv;
1392 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1393 struct sk_buff *skb;
1394 int err, ps;
1395
1396 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
1397 hwsim_testmode_policy);
1398 if (err)
1399 return err;
1400
1401 if (!tb[HWSIM_TM_ATTR_CMD])
1402 return -EINVAL;
1403
1404 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1405 case HWSIM_TM_CMD_SET_PS:
1406 if (!tb[HWSIM_TM_ATTR_PS])
1407 return -EINVAL;
1408 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1409 return hwsim_fops_ps_write(hwsim, ps);
1410 case HWSIM_TM_CMD_GET_PS:
1411 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1412 nla_total_size(sizeof(u32)));
1413 if (!skb)
1414 return -ENOMEM;
1415 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
1416 goto nla_put_failure;
1417 return cfg80211_testmode_reply(skb);
1418 case HWSIM_TM_CMD_STOP_QUEUES:
1419 ieee80211_stop_queues(hw);
1420 return 0;
1421 case HWSIM_TM_CMD_WAKE_QUEUES:
1422 ieee80211_wake_queues(hw);
1423 return 0;
1424 default:
1425 return -EOPNOTSUPP;
1426 }
1427
1428 nla_put_failure:
1429 kfree_skb(skb);
1430 return -ENOBUFS;
1431 }
1432 #endif
1433
1434 static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1435 struct ieee80211_vif *vif,
1436 enum ieee80211_ampdu_mlme_action action,
1437 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
1438 u8 buf_size)
1439 {
1440 switch (action) {
1441 case IEEE80211_AMPDU_TX_START:
1442 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1443 break;
1444 case IEEE80211_AMPDU_TX_STOP_CONT:
1445 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1446 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1447 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1448 break;
1449 case IEEE80211_AMPDU_TX_OPERATIONAL:
1450 break;
1451 case IEEE80211_AMPDU_RX_START:
1452 case IEEE80211_AMPDU_RX_STOP:
1453 break;
1454 default:
1455 return -EOPNOTSUPP;
1456 }
1457
1458 return 0;
1459 }
1460
1461 static void mac80211_hwsim_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
1462 {
1463 /* Not implemented, queues only on kernel side */
1464 }
1465
1466 static void hw_scan_work(struct work_struct *work)
1467 {
1468 struct mac80211_hwsim_data *hwsim =
1469 container_of(work, struct mac80211_hwsim_data, hw_scan.work);
1470 struct cfg80211_scan_request *req = hwsim->hw_scan_request;
1471 int dwell, i;
1472
1473 mutex_lock(&hwsim->mutex);
1474 if (hwsim->scan_chan_idx >= req->n_channels) {
1475 wiphy_debug(hwsim->hw->wiphy, "hw scan complete\n");
1476 ieee80211_scan_completed(hwsim->hw, false);
1477 hwsim->hw_scan_request = NULL;
1478 hwsim->hw_scan_vif = NULL;
1479 hwsim->tmp_chan = NULL;
1480 mutex_unlock(&hwsim->mutex);
1481 return;
1482 }
1483
1484 wiphy_debug(hwsim->hw->wiphy, "hw scan %d MHz\n",
1485 req->channels[hwsim->scan_chan_idx]->center_freq);
1486
1487 hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
1488 if (hwsim->tmp_chan->flags & IEEE80211_CHAN_PASSIVE_SCAN ||
1489 !req->n_ssids) {
1490 dwell = 120;
1491 } else {
1492 dwell = 30;
1493 /* send probes */
1494 for (i = 0; i < req->n_ssids; i++) {
1495 struct sk_buff *probe;
1496
1497 probe = ieee80211_probereq_get(hwsim->hw,
1498 hwsim->hw_scan_vif,
1499 req->ssids[i].ssid,
1500 req->ssids[i].ssid_len,
1501 req->ie_len);
1502 if (!probe)
1503 continue;
1504
1505 if (req->ie_len)
1506 memcpy(skb_put(probe, req->ie_len), req->ie,
1507 req->ie_len);
1508
1509 local_bh_disable();
1510 mac80211_hwsim_tx_frame(hwsim->hw, probe,
1511 hwsim->tmp_chan);
1512 local_bh_enable();
1513 }
1514 }
1515 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
1516 msecs_to_jiffies(dwell));
1517 hwsim->scan_chan_idx++;
1518 mutex_unlock(&hwsim->mutex);
1519 }
1520
1521 static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
1522 struct ieee80211_vif *vif,
1523 struct cfg80211_scan_request *req)
1524 {
1525 struct mac80211_hwsim_data *hwsim = hw->priv;
1526
1527 mutex_lock(&hwsim->mutex);
1528 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1529 mutex_unlock(&hwsim->mutex);
1530 return -EBUSY;
1531 }
1532 hwsim->hw_scan_request = req;
1533 hwsim->hw_scan_vif = vif;
1534 hwsim->scan_chan_idx = 0;
1535 mutex_unlock(&hwsim->mutex);
1536
1537 wiphy_debug(hw->wiphy, "hwsim hw_scan request\n");
1538
1539 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
1540
1541 return 0;
1542 }
1543
1544 static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
1545 struct ieee80211_vif *vif)
1546 {
1547 struct mac80211_hwsim_data *hwsim = hw->priv;
1548
1549 wiphy_debug(hw->wiphy, "hwsim cancel_hw_scan\n");
1550
1551 cancel_delayed_work_sync(&hwsim->hw_scan);
1552
1553 mutex_lock(&hwsim->mutex);
1554 ieee80211_scan_completed(hwsim->hw, true);
1555 hwsim->tmp_chan = NULL;
1556 hwsim->hw_scan_request = NULL;
1557 hwsim->hw_scan_vif = NULL;
1558 mutex_unlock(&hwsim->mutex);
1559 }
1560
1561 static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw)
1562 {
1563 struct mac80211_hwsim_data *hwsim = hw->priv;
1564
1565 mutex_lock(&hwsim->mutex);
1566
1567 if (hwsim->scanning) {
1568 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
1569 goto out;
1570 }
1571
1572 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
1573 hwsim->scanning = true;
1574
1575 out:
1576 mutex_unlock(&hwsim->mutex);
1577 }
1578
1579 static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw)
1580 {
1581 struct mac80211_hwsim_data *hwsim = hw->priv;
1582
1583 mutex_lock(&hwsim->mutex);
1584
1585 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
1586 hwsim->scanning = false;
1587
1588 mutex_unlock(&hwsim->mutex);
1589 }
1590
1591 static void hw_roc_done(struct work_struct *work)
1592 {
1593 struct mac80211_hwsim_data *hwsim =
1594 container_of(work, struct mac80211_hwsim_data, roc_done.work);
1595
1596 mutex_lock(&hwsim->mutex);
1597 ieee80211_remain_on_channel_expired(hwsim->hw);
1598 hwsim->tmp_chan = NULL;
1599 mutex_unlock(&hwsim->mutex);
1600
1601 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC expired\n");
1602 }
1603
1604 static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
1605 struct ieee80211_vif *vif,
1606 struct ieee80211_channel *chan,
1607 int duration,
1608 enum ieee80211_roc_type type)
1609 {
1610 struct mac80211_hwsim_data *hwsim = hw->priv;
1611
1612 mutex_lock(&hwsim->mutex);
1613 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1614 mutex_unlock(&hwsim->mutex);
1615 return -EBUSY;
1616 }
1617
1618 hwsim->tmp_chan = chan;
1619 mutex_unlock(&hwsim->mutex);
1620
1621 wiphy_debug(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
1622 chan->center_freq, duration);
1623
1624 ieee80211_ready_on_channel(hw);
1625
1626 ieee80211_queue_delayed_work(hw, &hwsim->roc_done,
1627 msecs_to_jiffies(duration));
1628 return 0;
1629 }
1630
1631 static int mac80211_hwsim_croc(struct ieee80211_hw *hw)
1632 {
1633 struct mac80211_hwsim_data *hwsim = hw->priv;
1634
1635 cancel_delayed_work_sync(&hwsim->roc_done);
1636
1637 mutex_lock(&hwsim->mutex);
1638 hwsim->tmp_chan = NULL;
1639 mutex_unlock(&hwsim->mutex);
1640
1641 wiphy_debug(hw->wiphy, "hwsim ROC canceled\n");
1642
1643 return 0;
1644 }
1645
1646 static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
1647 struct ieee80211_chanctx_conf *ctx)
1648 {
1649 hwsim_set_chanctx_magic(ctx);
1650 wiphy_debug(hw->wiphy,
1651 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1652 ctx->def.chan->center_freq, ctx->def.width,
1653 ctx->def.center_freq1, ctx->def.center_freq2);
1654 return 0;
1655 }
1656
1657 static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
1658 struct ieee80211_chanctx_conf *ctx)
1659 {
1660 wiphy_debug(hw->wiphy,
1661 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1662 ctx->def.chan->center_freq, ctx->def.width,
1663 ctx->def.center_freq1, ctx->def.center_freq2);
1664 hwsim_check_chanctx_magic(ctx);
1665 hwsim_clear_chanctx_magic(ctx);
1666 }
1667
1668 static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
1669 struct ieee80211_chanctx_conf *ctx,
1670 u32 changed)
1671 {
1672 hwsim_check_chanctx_magic(ctx);
1673 wiphy_debug(hw->wiphy,
1674 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1675 ctx->def.chan->center_freq, ctx->def.width,
1676 ctx->def.center_freq1, ctx->def.center_freq2);
1677 }
1678
1679 static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
1680 struct ieee80211_vif *vif,
1681 struct ieee80211_chanctx_conf *ctx)
1682 {
1683 hwsim_check_magic(vif);
1684 hwsim_check_chanctx_magic(ctx);
1685
1686 return 0;
1687 }
1688
1689 static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
1690 struct ieee80211_vif *vif,
1691 struct ieee80211_chanctx_conf *ctx)
1692 {
1693 hwsim_check_magic(vif);
1694 hwsim_check_chanctx_magic(ctx);
1695 }
1696
1697 static struct ieee80211_ops mac80211_hwsim_ops =
1698 {
1699 .tx = mac80211_hwsim_tx,
1700 .start = mac80211_hwsim_start,
1701 .stop = mac80211_hwsim_stop,
1702 .add_interface = mac80211_hwsim_add_interface,
1703 .change_interface = mac80211_hwsim_change_interface,
1704 .remove_interface = mac80211_hwsim_remove_interface,
1705 .config = mac80211_hwsim_config,
1706 .configure_filter = mac80211_hwsim_configure_filter,
1707 .bss_info_changed = mac80211_hwsim_bss_info_changed,
1708 .sta_add = mac80211_hwsim_sta_add,
1709 .sta_remove = mac80211_hwsim_sta_remove,
1710 .sta_notify = mac80211_hwsim_sta_notify,
1711 .set_tim = mac80211_hwsim_set_tim,
1712 .conf_tx = mac80211_hwsim_conf_tx,
1713 .get_survey = mac80211_hwsim_get_survey,
1714 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
1715 .ampdu_action = mac80211_hwsim_ampdu_action,
1716 .sw_scan_start = mac80211_hwsim_sw_scan,
1717 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
1718 .flush = mac80211_hwsim_flush,
1719 .get_tsf = mac80211_hwsim_get_tsf,
1720 .set_tsf = mac80211_hwsim_set_tsf,
1721 };
1722
1723
1724 static void mac80211_hwsim_free(void)
1725 {
1726 struct list_head tmplist, *i, *tmp;
1727 struct mac80211_hwsim_data *data, *tmpdata;
1728
1729 INIT_LIST_HEAD(&tmplist);
1730
1731 spin_lock_bh(&hwsim_radio_lock);
1732 list_for_each_safe(i, tmp, &hwsim_radios)
1733 list_move(i, &tmplist);
1734 spin_unlock_bh(&hwsim_radio_lock);
1735
1736 list_for_each_entry_safe(data, tmpdata, &tmplist, list) {
1737 debugfs_remove(data->debugfs_group);
1738 debugfs_remove(data->debugfs_ps);
1739 debugfs_remove(data->debugfs);
1740 ieee80211_unregister_hw(data->hw);
1741 device_release_driver(data->dev);
1742 device_unregister(data->dev);
1743 ieee80211_free_hw(data->hw);
1744 }
1745 class_destroy(hwsim_class);
1746 }
1747
1748 static struct platform_driver mac80211_hwsim_driver = {
1749 .driver = {
1750 .name = "mac80211_hwsim",
1751 .owner = THIS_MODULE,
1752 },
1753 };
1754
1755 static const struct net_device_ops hwsim_netdev_ops = {
1756 .ndo_start_xmit = hwsim_mon_xmit,
1757 .ndo_change_mtu = eth_change_mtu,
1758 .ndo_set_mac_address = eth_mac_addr,
1759 .ndo_validate_addr = eth_validate_addr,
1760 };
1761
1762 static void hwsim_mon_setup(struct net_device *dev)
1763 {
1764 dev->netdev_ops = &hwsim_netdev_ops;
1765 dev->destructor = free_netdev;
1766 ether_setup(dev);
1767 dev->tx_queue_len = 0;
1768 dev->type = ARPHRD_IEEE80211_RADIOTAP;
1769 memset(dev->dev_addr, 0, ETH_ALEN);
1770 dev->dev_addr[0] = 0x12;
1771 }
1772
1773
1774 static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
1775 {
1776 struct mac80211_hwsim_data *data = dat;
1777 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1778 struct sk_buff *skb;
1779 struct ieee80211_pspoll *pspoll;
1780
1781 if (!vp->assoc)
1782 return;
1783
1784 wiphy_debug(data->hw->wiphy,
1785 "%s: send PS-Poll to %pM for aid %d\n",
1786 __func__, vp->bssid, vp->aid);
1787
1788 skb = dev_alloc_skb(sizeof(*pspoll));
1789 if (!skb)
1790 return;
1791 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
1792 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
1793 IEEE80211_STYPE_PSPOLL |
1794 IEEE80211_FCTL_PM);
1795 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
1796 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
1797 memcpy(pspoll->ta, mac, ETH_ALEN);
1798
1799 rcu_read_lock();
1800 mac80211_hwsim_tx_frame(data->hw, skb,
1801 rcu_dereference(vif->chanctx_conf)->def.chan);
1802 rcu_read_unlock();
1803 }
1804
1805 static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
1806 struct ieee80211_vif *vif, int ps)
1807 {
1808 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1809 struct sk_buff *skb;
1810 struct ieee80211_hdr *hdr;
1811
1812 if (!vp->assoc)
1813 return;
1814
1815 wiphy_debug(data->hw->wiphy,
1816 "%s: send data::nullfunc to %pM ps=%d\n",
1817 __func__, vp->bssid, ps);
1818
1819 skb = dev_alloc_skb(sizeof(*hdr));
1820 if (!skb)
1821 return;
1822 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
1823 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1824 IEEE80211_STYPE_NULLFUNC |
1825 (ps ? IEEE80211_FCTL_PM : 0));
1826 hdr->duration_id = cpu_to_le16(0);
1827 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
1828 memcpy(hdr->addr2, mac, ETH_ALEN);
1829 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
1830
1831 rcu_read_lock();
1832 mac80211_hwsim_tx_frame(data->hw, skb,
1833 rcu_dereference(vif->chanctx_conf)->def.chan);
1834 rcu_read_unlock();
1835 }
1836
1837
1838 static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
1839 struct ieee80211_vif *vif)
1840 {
1841 struct mac80211_hwsim_data *data = dat;
1842 hwsim_send_nullfunc(data, mac, vif, 1);
1843 }
1844
1845
1846 static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
1847 struct ieee80211_vif *vif)
1848 {
1849 struct mac80211_hwsim_data *data = dat;
1850 hwsim_send_nullfunc(data, mac, vif, 0);
1851 }
1852
1853
1854 static int hwsim_fops_ps_read(void *dat, u64 *val)
1855 {
1856 struct mac80211_hwsim_data *data = dat;
1857 *val = data->ps;
1858 return 0;
1859 }
1860
1861 static int hwsim_fops_ps_write(void *dat, u64 val)
1862 {
1863 struct mac80211_hwsim_data *data = dat;
1864 enum ps_mode old_ps;
1865
1866 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
1867 val != PS_MANUAL_POLL)
1868 return -EINVAL;
1869
1870 old_ps = data->ps;
1871 data->ps = val;
1872
1873 if (val == PS_MANUAL_POLL) {
1874 ieee80211_iterate_active_interfaces(data->hw,
1875 IEEE80211_IFACE_ITER_NORMAL,
1876 hwsim_send_ps_poll, data);
1877 data->ps_poll_pending = true;
1878 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
1879 ieee80211_iterate_active_interfaces(data->hw,
1880 IEEE80211_IFACE_ITER_NORMAL,
1881 hwsim_send_nullfunc_ps,
1882 data);
1883 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
1884 ieee80211_iterate_active_interfaces(data->hw,
1885 IEEE80211_IFACE_ITER_NORMAL,
1886 hwsim_send_nullfunc_no_ps,
1887 data);
1888 }
1889
1890 return 0;
1891 }
1892
1893 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
1894 "%llu\n");
1895
1896
1897 static int hwsim_fops_group_read(void *dat, u64 *val)
1898 {
1899 struct mac80211_hwsim_data *data = dat;
1900 *val = data->group;
1901 return 0;
1902 }
1903
1904 static int hwsim_fops_group_write(void *dat, u64 val)
1905 {
1906 struct mac80211_hwsim_data *data = dat;
1907 data->group = val;
1908 return 0;
1909 }
1910
1911 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
1912 hwsim_fops_group_read, hwsim_fops_group_write,
1913 "%llx\n");
1914
1915 static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(
1916 struct mac_address *addr)
1917 {
1918 struct mac80211_hwsim_data *data;
1919 bool _found = false;
1920
1921 spin_lock_bh(&hwsim_radio_lock);
1922 list_for_each_entry(data, &hwsim_radios, list) {
1923 if (memcmp(data->addresses[1].addr, addr,
1924 sizeof(struct mac_address)) == 0) {
1925 _found = true;
1926 break;
1927 }
1928 }
1929 spin_unlock_bh(&hwsim_radio_lock);
1930
1931 if (!_found)
1932 return NULL;
1933
1934 return data;
1935 }
1936
1937 static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
1938 struct genl_info *info)
1939 {
1940
1941 struct ieee80211_hdr *hdr;
1942 struct mac80211_hwsim_data *data2;
1943 struct ieee80211_tx_info *txi;
1944 struct hwsim_tx_rate *tx_attempts;
1945 unsigned long ret_skb_ptr;
1946 struct sk_buff *skb, *tmp;
1947 struct mac_address *src;
1948 unsigned int hwsim_flags;
1949
1950 int i;
1951 bool found = false;
1952
1953 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
1954 !info->attrs[HWSIM_ATTR_FLAGS] ||
1955 !info->attrs[HWSIM_ATTR_COOKIE] ||
1956 !info->attrs[HWSIM_ATTR_TX_INFO])
1957 goto out;
1958
1959 src = (struct mac_address *)nla_data(
1960 info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
1961 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
1962
1963 ret_skb_ptr = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
1964
1965 data2 = get_hwsim_data_ref_from_addr(src);
1966
1967 if (data2 == NULL)
1968 goto out;
1969
1970 /* look for the skb matching the cookie passed back from user */
1971 skb_queue_walk_safe(&data2->pending, skb, tmp) {
1972 if ((unsigned long)skb == ret_skb_ptr) {
1973 skb_unlink(skb, &data2->pending);
1974 found = true;
1975 break;
1976 }
1977 }
1978
1979 /* not found */
1980 if (!found)
1981 goto out;
1982
1983 /* Tx info received because the frame was broadcasted on user space,
1984 so we get all the necessary info: tx attempts and skb control buff */
1985
1986 tx_attempts = (struct hwsim_tx_rate *)nla_data(
1987 info->attrs[HWSIM_ATTR_TX_INFO]);
1988
1989 /* now send back TX status */
1990 txi = IEEE80211_SKB_CB(skb);
1991
1992 ieee80211_tx_info_clear_status(txi);
1993
1994 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
1995 txi->status.rates[i].idx = tx_attempts[i].idx;
1996 txi->status.rates[i].count = tx_attempts[i].count;
1997 /*txi->status.rates[i].flags = 0;*/
1998 }
1999
2000 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
2001
2002 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
2003 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
2004 if (skb->len >= 16) {
2005 hdr = (struct ieee80211_hdr *) skb->data;
2006 mac80211_hwsim_monitor_ack(txi->rate_driver_data[0],
2007 hdr->addr2);
2008 }
2009 txi->flags |= IEEE80211_TX_STAT_ACK;
2010 }
2011 ieee80211_tx_status_irqsafe(data2->hw, skb);
2012 return 0;
2013 out:
2014 return -EINVAL;
2015
2016 }
2017
2018 static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
2019 struct genl_info *info)
2020 {
2021
2022 struct mac80211_hwsim_data *data2;
2023 struct ieee80211_rx_status rx_status;
2024 struct mac_address *dst;
2025 int frame_data_len;
2026 char *frame_data;
2027 struct sk_buff *skb = NULL;
2028
2029 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
2030 !info->attrs[HWSIM_ATTR_FRAME] ||
2031 !info->attrs[HWSIM_ATTR_RX_RATE] ||
2032 !info->attrs[HWSIM_ATTR_SIGNAL])
2033 goto out;
2034
2035 dst = (struct mac_address *)nla_data(
2036 info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
2037
2038 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
2039 frame_data = (char *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
2040
2041 /* Allocate new skb here */
2042 skb = alloc_skb(frame_data_len, GFP_KERNEL);
2043 if (skb == NULL)
2044 goto err;
2045
2046 if (frame_data_len <= IEEE80211_MAX_DATA_LEN) {
2047 /* Copy the data */
2048 memcpy(skb_put(skb, frame_data_len), frame_data,
2049 frame_data_len);
2050 } else
2051 goto err;
2052
2053 data2 = get_hwsim_data_ref_from_addr(dst);
2054
2055 if (data2 == NULL)
2056 goto out;
2057
2058 /* check if radio is configured properly */
2059
2060 if (data2->idle || !data2->started)
2061 goto out;
2062
2063 /*A frame is received from user space*/
2064 memset(&rx_status, 0, sizeof(rx_status));
2065 rx_status.freq = data2->channel->center_freq;
2066 rx_status.band = data2->channel->band;
2067 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
2068 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
2069
2070 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
2071 ieee80211_rx_irqsafe(data2->hw, skb);
2072
2073 return 0;
2074 err:
2075 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
2076 goto out;
2077 out:
2078 dev_kfree_skb(skb);
2079 return -EINVAL;
2080 }
2081
2082 static int hwsim_register_received_nl(struct sk_buff *skb_2,
2083 struct genl_info *info)
2084 {
2085 if (info == NULL)
2086 goto out;
2087
2088 wmediumd_portid = info->snd_portid;
2089
2090 printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
2091 "switching to wmediumd mode with pid %d\n", info->snd_portid);
2092
2093 return 0;
2094 out:
2095 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
2096 return -EINVAL;
2097 }
2098
2099 /* Generic Netlink operations array */
2100 static const struct genl_ops hwsim_ops[] = {
2101 {
2102 .cmd = HWSIM_CMD_REGISTER,
2103 .policy = hwsim_genl_policy,
2104 .doit = hwsim_register_received_nl,
2105 .flags = GENL_ADMIN_PERM,
2106 },
2107 {
2108 .cmd = HWSIM_CMD_FRAME,
2109 .policy = hwsim_genl_policy,
2110 .doit = hwsim_cloned_frame_received_nl,
2111 },
2112 {
2113 .cmd = HWSIM_CMD_TX_INFO_FRAME,
2114 .policy = hwsim_genl_policy,
2115 .doit = hwsim_tx_info_frame_received_nl,
2116 },
2117 };
2118
2119 static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
2120 unsigned long state,
2121 void *_notify)
2122 {
2123 struct netlink_notify *notify = _notify;
2124
2125 if (state != NETLINK_URELEASE)
2126 return NOTIFY_DONE;
2127
2128 if (notify->portid == wmediumd_portid) {
2129 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
2130 " socket, switching to perfect channel medium\n");
2131 wmediumd_portid = 0;
2132 }
2133 return NOTIFY_DONE;
2134
2135 }
2136
2137 static struct notifier_block hwsim_netlink_notifier = {
2138 .notifier_call = mac80211_hwsim_netlink_notify,
2139 };
2140
2141 static int hwsim_init_netlink(void)
2142 {
2143 int rc;
2144
2145 /* userspace test API hasn't been adjusted for multi-channel */
2146 if (channels > 1)
2147 return 0;
2148
2149 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
2150
2151 rc = genl_register_family_with_ops(&hwsim_genl_family, hwsim_ops);
2152 if (rc)
2153 goto failure;
2154
2155 rc = netlink_register_notifier(&hwsim_netlink_notifier);
2156 if (rc)
2157 goto failure;
2158
2159 return 0;
2160
2161 failure:
2162 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
2163 return -EINVAL;
2164 }
2165
2166 static void hwsim_exit_netlink(void)
2167 {
2168 int ret;
2169
2170 /* userspace test API hasn't been adjusted for multi-channel */
2171 if (channels > 1)
2172 return;
2173
2174 printk(KERN_INFO "mac80211_hwsim: closing netlink\n");
2175 /* unregister the notifier */
2176 netlink_unregister_notifier(&hwsim_netlink_notifier);
2177 /* unregister the family */
2178 ret = genl_unregister_family(&hwsim_genl_family);
2179 if (ret)
2180 printk(KERN_DEBUG "mac80211_hwsim: "
2181 "unregister family %i\n", ret);
2182 }
2183
2184 static const struct ieee80211_iface_limit hwsim_if_limits[] = {
2185 { .max = 1, .types = BIT(NL80211_IFTYPE_ADHOC) },
2186 { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) |
2187 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2188 #ifdef CONFIG_MAC80211_MESH
2189 BIT(NL80211_IFTYPE_MESH_POINT) |
2190 #endif
2191 BIT(NL80211_IFTYPE_AP) |
2192 BIT(NL80211_IFTYPE_P2P_GO) },
2193 { .max = 1, .types = BIT(NL80211_IFTYPE_P2P_DEVICE) },
2194 };
2195
2196 static struct ieee80211_iface_combination hwsim_if_comb = {
2197 .limits = hwsim_if_limits,
2198 .n_limits = ARRAY_SIZE(hwsim_if_limits),
2199 .max_interfaces = 2048,
2200 .num_different_channels = 1,
2201 };
2202
2203 static int __init init_mac80211_hwsim(void)
2204 {
2205 int i, err = 0;
2206 u8 addr[ETH_ALEN];
2207 struct mac80211_hwsim_data *data;
2208 struct ieee80211_hw *hw;
2209 enum ieee80211_band band;
2210
2211 if (radios < 1 || radios > 100)
2212 return -EINVAL;
2213
2214 if (channels < 1)
2215 return -EINVAL;
2216
2217 if (channels > 1) {
2218 hwsim_if_comb.num_different_channels = channels;
2219 mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan;
2220 mac80211_hwsim_ops.cancel_hw_scan =
2221 mac80211_hwsim_cancel_hw_scan;
2222 mac80211_hwsim_ops.sw_scan_start = NULL;
2223 mac80211_hwsim_ops.sw_scan_complete = NULL;
2224 mac80211_hwsim_ops.remain_on_channel =
2225 mac80211_hwsim_roc;
2226 mac80211_hwsim_ops.cancel_remain_on_channel =
2227 mac80211_hwsim_croc;
2228 mac80211_hwsim_ops.add_chanctx =
2229 mac80211_hwsim_add_chanctx;
2230 mac80211_hwsim_ops.remove_chanctx =
2231 mac80211_hwsim_remove_chanctx;
2232 mac80211_hwsim_ops.change_chanctx =
2233 mac80211_hwsim_change_chanctx;
2234 mac80211_hwsim_ops.assign_vif_chanctx =
2235 mac80211_hwsim_assign_vif_chanctx;
2236 mac80211_hwsim_ops.unassign_vif_chanctx =
2237 mac80211_hwsim_unassign_vif_chanctx;
2238 }
2239
2240 spin_lock_init(&hwsim_radio_lock);
2241 INIT_LIST_HEAD(&hwsim_radios);
2242
2243 err = platform_driver_register(&mac80211_hwsim_driver);
2244 if (err)
2245 return err;
2246
2247 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
2248 if (IS_ERR(hwsim_class)) {
2249 err = PTR_ERR(hwsim_class);
2250 goto failed_unregister_driver;
2251 }
2252
2253 memset(addr, 0, ETH_ALEN);
2254 addr[0] = 0x02;
2255
2256 for (i = 0; i < radios; i++) {
2257 printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
2258 i);
2259 hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);
2260 if (!hw) {
2261 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
2262 "failed\n");
2263 err = -ENOMEM;
2264 goto failed;
2265 }
2266 data = hw->priv;
2267 data->hw = hw;
2268
2269 data->dev = device_create(hwsim_class, NULL, 0, hw,
2270 "hwsim%d", i);
2271 if (IS_ERR(data->dev)) {
2272 printk(KERN_DEBUG
2273 "mac80211_hwsim: device_create failed (%ld)\n",
2274 PTR_ERR(data->dev));
2275 err = -ENOMEM;
2276 goto failed_drvdata;
2277 }
2278 data->dev->driver = &mac80211_hwsim_driver.driver;
2279 err = device_bind_driver(data->dev);
2280 if (err != 0) {
2281 printk(KERN_DEBUG
2282 "mac80211_hwsim: device_bind_driver failed (%d)\n",
2283 err);
2284 goto failed_hw;
2285 }
2286
2287 skb_queue_head_init(&data->pending);
2288
2289 SET_IEEE80211_DEV(hw, data->dev);
2290 addr[3] = i >> 8;
2291 addr[4] = i;
2292 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
2293 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
2294 data->addresses[1].addr[0] |= 0x40;
2295 hw->wiphy->n_addresses = 2;
2296 hw->wiphy->addresses = data->addresses;
2297
2298 hw->wiphy->iface_combinations = &hwsim_if_comb;
2299 hw->wiphy->n_iface_combinations = 1;
2300
2301 if (channels > 1) {
2302 hw->wiphy->max_scan_ssids = 255;
2303 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
2304 hw->wiphy->max_remain_on_channel_duration = 1000;
2305 }
2306
2307 INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
2308 INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
2309
2310 hw->channel_change_time = 1;
2311 hw->queues = 5;
2312 hw->offchannel_tx_hw_queue = 4;
2313 hw->wiphy->interface_modes =
2314 BIT(NL80211_IFTYPE_STATION) |
2315 BIT(NL80211_IFTYPE_AP) |
2316 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2317 BIT(NL80211_IFTYPE_P2P_GO) |
2318 BIT(NL80211_IFTYPE_ADHOC) |
2319 BIT(NL80211_IFTYPE_MESH_POINT) |
2320 BIT(NL80211_IFTYPE_P2P_DEVICE);
2321
2322 hw->flags = IEEE80211_HW_MFP_CAPABLE |
2323 IEEE80211_HW_SIGNAL_DBM |
2324 IEEE80211_HW_SUPPORTS_STATIC_SMPS |
2325 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
2326 IEEE80211_HW_AMPDU_AGGREGATION |
2327 IEEE80211_HW_WANT_MONITOR_VIF |
2328 IEEE80211_HW_QUEUE_CONTROL;
2329 if (rctbl)
2330 hw->flags |= IEEE80211_HW_SUPPORTS_RC_TABLE;
2331
2332 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2333 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
2334 WIPHY_FLAG_AP_UAPSD;
2335 hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR;
2336
2337 /* ask mac80211 to reserve space for magic */
2338 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
2339 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
2340 hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
2341
2342 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
2343 sizeof(hwsim_channels_2ghz));
2344 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
2345 sizeof(hwsim_channels_5ghz));
2346 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
2347
2348 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
2349 struct ieee80211_supported_band *sband = &data->bands[band];
2350 switch (band) {
2351 case IEEE80211_BAND_2GHZ:
2352 sband->channels = data->channels_2ghz;
2353 sband->n_channels =
2354 ARRAY_SIZE(hwsim_channels_2ghz);
2355 sband->bitrates = data->rates;
2356 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
2357 break;
2358 case IEEE80211_BAND_5GHZ:
2359 sband->channels = data->channels_5ghz;
2360 sband->n_channels =
2361 ARRAY_SIZE(hwsim_channels_5ghz);
2362 sband->bitrates = data->rates + 4;
2363 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
2364 break;
2365 default:
2366 continue;
2367 }
2368
2369 sband->ht_cap.ht_supported = true;
2370 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
2371 IEEE80211_HT_CAP_GRN_FLD |
2372 IEEE80211_HT_CAP_SGI_40 |
2373 IEEE80211_HT_CAP_DSSSCCK40;
2374 sband->ht_cap.ampdu_factor = 0x3;
2375 sband->ht_cap.ampdu_density = 0x6;
2376 memset(&sband->ht_cap.mcs, 0,
2377 sizeof(sband->ht_cap.mcs));
2378 sband->ht_cap.mcs.rx_mask[0] = 0xff;
2379 sband->ht_cap.mcs.rx_mask[1] = 0xff;
2380 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2381
2382 hw->wiphy->bands[band] = sband;
2383
2384 sband->vht_cap.vht_supported = true;
2385 sband->vht_cap.cap =
2386 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
2387 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
2388 IEEE80211_VHT_CAP_RXLDPC |
2389 IEEE80211_VHT_CAP_SHORT_GI_80 |
2390 IEEE80211_VHT_CAP_SHORT_GI_160 |
2391 IEEE80211_VHT_CAP_TXSTBC |
2392 IEEE80211_VHT_CAP_RXSTBC_1 |
2393 IEEE80211_VHT_CAP_RXSTBC_2 |
2394 IEEE80211_VHT_CAP_RXSTBC_3 |
2395 IEEE80211_VHT_CAP_RXSTBC_4 |
2396 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
2397 sband->vht_cap.vht_mcs.rx_mcs_map =
2398 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_8 << 0 |
2399 IEEE80211_VHT_MCS_SUPPORT_0_8 << 2 |
2400 IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
2401 IEEE80211_VHT_MCS_SUPPORT_0_8 << 6 |
2402 IEEE80211_VHT_MCS_SUPPORT_0_8 << 8 |
2403 IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
2404 IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
2405 IEEE80211_VHT_MCS_SUPPORT_0_8 << 14);
2406 sband->vht_cap.vht_mcs.tx_mcs_map =
2407 sband->vht_cap.vht_mcs.rx_mcs_map;
2408 }
2409 /* By default all radios are belonging to the first group */
2410 data->group = 1;
2411 mutex_init(&data->mutex);
2412
2413 /* Enable frame retransmissions for lossy channels */
2414 hw->max_rates = 4;
2415 hw->max_rate_tries = 11;
2416
2417 /* Work to be done prior to ieee80211_register_hw() */
2418 switch (regtest) {
2419 case HWSIM_REGTEST_DISABLED:
2420 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
2421 case HWSIM_REGTEST_DRIVER_REG_ALL:
2422 case HWSIM_REGTEST_DIFF_COUNTRY:
2423 /*
2424 * Nothing to be done for driver regulatory domain
2425 * hints prior to ieee80211_register_hw()
2426 */
2427 break;
2428 case HWSIM_REGTEST_WORLD_ROAM:
2429 if (i == 0) {
2430 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
2431 wiphy_apply_custom_regulatory(hw->wiphy,
2432 &hwsim_world_regdom_custom_01);
2433 }
2434 break;
2435 case HWSIM_REGTEST_CUSTOM_WORLD:
2436 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
2437 wiphy_apply_custom_regulatory(hw->wiphy,
2438 &hwsim_world_regdom_custom_01);
2439 break;
2440 case HWSIM_REGTEST_CUSTOM_WORLD_2:
2441 if (i == 0) {
2442 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
2443 wiphy_apply_custom_regulatory(hw->wiphy,
2444 &hwsim_world_regdom_custom_01);
2445 } else if (i == 1) {
2446 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
2447 wiphy_apply_custom_regulatory(hw->wiphy,
2448 &hwsim_world_regdom_custom_02);
2449 }
2450 break;
2451 case HWSIM_REGTEST_STRICT_ALL:
2452 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
2453 break;
2454 case HWSIM_REGTEST_STRICT_FOLLOW:
2455 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
2456 if (i == 0)
2457 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
2458 break;
2459 case HWSIM_REGTEST_ALL:
2460 if (i == 0) {
2461 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
2462 wiphy_apply_custom_regulatory(hw->wiphy,
2463 &hwsim_world_regdom_custom_01);
2464 } else if (i == 1) {
2465 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
2466 wiphy_apply_custom_regulatory(hw->wiphy,
2467 &hwsim_world_regdom_custom_02);
2468 } else if (i == 4)
2469 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
2470 break;
2471 default:
2472 break;
2473 }
2474
2475 /* give the regulatory workqueue a chance to run */
2476 if (regtest)
2477 schedule_timeout_interruptible(1);
2478 err = ieee80211_register_hw(hw);
2479 if (err < 0) {
2480 printk(KERN_DEBUG "mac80211_hwsim: "
2481 "ieee80211_register_hw failed (%d)\n", err);
2482 goto failed_hw;
2483 }
2484
2485 /* Work to be done after to ieee80211_register_hw() */
2486 switch (regtest) {
2487 case HWSIM_REGTEST_WORLD_ROAM:
2488 case HWSIM_REGTEST_DISABLED:
2489 break;
2490 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
2491 if (!i)
2492 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2493 break;
2494 case HWSIM_REGTEST_DRIVER_REG_ALL:
2495 case HWSIM_REGTEST_STRICT_ALL:
2496 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2497 break;
2498 case HWSIM_REGTEST_DIFF_COUNTRY:
2499 if (i < ARRAY_SIZE(hwsim_alpha2s))
2500 regulatory_hint(hw->wiphy, hwsim_alpha2s[i]);
2501 break;
2502 case HWSIM_REGTEST_CUSTOM_WORLD:
2503 case HWSIM_REGTEST_CUSTOM_WORLD_2:
2504 /*
2505 * Nothing to be done for custom world regulatory
2506 * domains after to ieee80211_register_hw
2507 */
2508 break;
2509 case HWSIM_REGTEST_STRICT_FOLLOW:
2510 if (i == 0)
2511 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2512 break;
2513 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
2514 if (i == 0)
2515 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2516 else if (i == 1)
2517 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
2518 break;
2519 case HWSIM_REGTEST_ALL:
2520 if (i == 2)
2521 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2522 else if (i == 3)
2523 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
2524 else if (i == 4)
2525 regulatory_hint(hw->wiphy, hwsim_alpha2s[2]);
2526 break;
2527 default:
2528 break;
2529 }
2530
2531 wiphy_debug(hw->wiphy, "hwaddr %pm registered\n",
2532 hw->wiphy->perm_addr);
2533
2534 data->debugfs = debugfs_create_dir("hwsim",
2535 hw->wiphy->debugfsdir);
2536 data->debugfs_ps = debugfs_create_file("ps", 0666,
2537 data->debugfs, data,
2538 &hwsim_fops_ps);
2539 data->debugfs_group = debugfs_create_file("group", 0666,
2540 data->debugfs, data,
2541 &hwsim_fops_group);
2542
2543 tasklet_hrtimer_init(&data->beacon_timer,
2544 mac80211_hwsim_beacon,
2545 CLOCK_REALTIME, HRTIMER_MODE_ABS);
2546
2547 list_add_tail(&data->list, &hwsim_radios);
2548 }
2549
2550 hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
2551 if (hwsim_mon == NULL) {
2552 err = -ENOMEM;
2553 goto failed;
2554 }
2555
2556 rtnl_lock();
2557
2558 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
2559 if (err < 0)
2560 goto failed_mon;
2561
2562
2563 err = register_netdevice(hwsim_mon);
2564 if (err < 0)
2565 goto failed_mon;
2566
2567 rtnl_unlock();
2568
2569 err = hwsim_init_netlink();
2570 if (err < 0)
2571 goto failed_nl;
2572
2573 return 0;
2574
2575 failed_nl:
2576 printk(KERN_DEBUG "mac_80211_hwsim: failed initializing netlink\n");
2577 return err;
2578
2579 failed_mon:
2580 rtnl_unlock();
2581 free_netdev(hwsim_mon);
2582 mac80211_hwsim_free();
2583 return err;
2584
2585 failed_hw:
2586 device_unregister(data->dev);
2587 failed_drvdata:
2588 ieee80211_free_hw(hw);
2589 failed:
2590 mac80211_hwsim_free();
2591 failed_unregister_driver:
2592 platform_driver_unregister(&mac80211_hwsim_driver);
2593 return err;
2594 }
2595 module_init(init_mac80211_hwsim);
2596
2597 static void __exit exit_mac80211_hwsim(void)
2598 {
2599 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
2600
2601 hwsim_exit_netlink();
2602
2603 mac80211_hwsim_free();
2604 unregister_netdev(hwsim_mon);
2605 platform_driver_unregister(&mac80211_hwsim_driver);
2606 }
2607 module_exit(exit_mac80211_hwsim);
Linux kernel - Deliverables
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