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cfg80211: move regulatory flags to their own variable
[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_NO_IR),
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
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
365 int power_level;
366
367 /* difference between this hw's clock and the real clock, in usecs */
368 s64 tsf_offset;
369 s64 bcn_delta;
370 /* absolute beacon transmission time. Used to cover up "tx" delay. */
371 u64 abs_bcn_ts;
372 };
373
374
375 struct hwsim_radiotap_hdr {
376 struct ieee80211_radiotap_header hdr;
377 __le64 rt_tsft;
378 u8 rt_flags;
379 u8 rt_rate;
380 __le16 rt_channel;
381 __le16 rt_chbitmask;
382 } __packed;
383
384 /* MAC80211_HWSIM netlinf family */
385 static struct genl_family hwsim_genl_family = {
386 .id = GENL_ID_GENERATE,
387 .hdrsize = 0,
388 .name = "MAC80211_HWSIM",
389 .version = 1,
390 .maxattr = HWSIM_ATTR_MAX,
391 };
392
393 /* MAC80211_HWSIM netlink policy */
394
395 static struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
396 [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC,
397 .len = 6*sizeof(u8) },
398 [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC,
399 .len = 6*sizeof(u8) },
400 [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
401 .len = IEEE80211_MAX_DATA_LEN },
402 [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
403 [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
404 [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
405 [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC,
406 .len = IEEE80211_TX_MAX_RATES*sizeof(
407 struct hwsim_tx_rate)},
408 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
409 };
410
411 static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
412 struct net_device *dev)
413 {
414 /* TODO: allow packet injection */
415 dev_kfree_skb(skb);
416 return NETDEV_TX_OK;
417 }
418
419 static inline u64 mac80211_hwsim_get_tsf_raw(void)
420 {
421 return ktime_to_us(ktime_get_real());
422 }
423
424 static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
425 {
426 u64 now = mac80211_hwsim_get_tsf_raw();
427 return cpu_to_le64(now + data->tsf_offset);
428 }
429
430 static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
431 struct ieee80211_vif *vif)
432 {
433 struct mac80211_hwsim_data *data = hw->priv;
434 return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
435 }
436
437 static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
438 struct ieee80211_vif *vif, u64 tsf)
439 {
440 struct mac80211_hwsim_data *data = hw->priv;
441 u64 now = mac80211_hwsim_get_tsf(hw, vif);
442 u32 bcn_int = data->beacon_int;
443 s64 delta = tsf - now;
444
445 data->tsf_offset += delta;
446 /* adjust after beaconing with new timestamp at old TBTT */
447 data->bcn_delta = do_div(delta, bcn_int);
448 }
449
450 static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
451 struct sk_buff *tx_skb,
452 struct ieee80211_channel *chan)
453 {
454 struct mac80211_hwsim_data *data = hw->priv;
455 struct sk_buff *skb;
456 struct hwsim_radiotap_hdr *hdr;
457 u16 flags;
458 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
459 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
460
461 if (!netif_running(hwsim_mon))
462 return;
463
464 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
465 if (skb == NULL)
466 return;
467
468 hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
469 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
470 hdr->hdr.it_pad = 0;
471 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
472 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
473 (1 << IEEE80211_RADIOTAP_RATE) |
474 (1 << IEEE80211_RADIOTAP_TSFT) |
475 (1 << IEEE80211_RADIOTAP_CHANNEL));
476 hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
477 hdr->rt_flags = 0;
478 hdr->rt_rate = txrate->bitrate / 5;
479 hdr->rt_channel = cpu_to_le16(chan->center_freq);
480 flags = IEEE80211_CHAN_2GHZ;
481 if (txrate->flags & IEEE80211_RATE_ERP_G)
482 flags |= IEEE80211_CHAN_OFDM;
483 else
484 flags |= IEEE80211_CHAN_CCK;
485 hdr->rt_chbitmask = cpu_to_le16(flags);
486
487 skb->dev = hwsim_mon;
488 skb_set_mac_header(skb, 0);
489 skb->ip_summed = CHECKSUM_UNNECESSARY;
490 skb->pkt_type = PACKET_OTHERHOST;
491 skb->protocol = htons(ETH_P_802_2);
492 memset(skb->cb, 0, sizeof(skb->cb));
493 netif_rx(skb);
494 }
495
496
497 static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
498 const u8 *addr)
499 {
500 struct sk_buff *skb;
501 struct hwsim_radiotap_hdr *hdr;
502 u16 flags;
503 struct ieee80211_hdr *hdr11;
504
505 if (!netif_running(hwsim_mon))
506 return;
507
508 skb = dev_alloc_skb(100);
509 if (skb == NULL)
510 return;
511
512 hdr = (struct hwsim_radiotap_hdr *) skb_put(skb, sizeof(*hdr));
513 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
514 hdr->hdr.it_pad = 0;
515 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
516 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
517 (1 << IEEE80211_RADIOTAP_CHANNEL));
518 hdr->rt_flags = 0;
519 hdr->rt_rate = 0;
520 hdr->rt_channel = cpu_to_le16(chan->center_freq);
521 flags = IEEE80211_CHAN_2GHZ;
522 hdr->rt_chbitmask = cpu_to_le16(flags);
523
524 hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
525 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
526 IEEE80211_STYPE_ACK);
527 hdr11->duration_id = cpu_to_le16(0);
528 memcpy(hdr11->addr1, addr, ETH_ALEN);
529
530 skb->dev = hwsim_mon;
531 skb_set_mac_header(skb, 0);
532 skb->ip_summed = CHECKSUM_UNNECESSARY;
533 skb->pkt_type = PACKET_OTHERHOST;
534 skb->protocol = htons(ETH_P_802_2);
535 memset(skb->cb, 0, sizeof(skb->cb));
536 netif_rx(skb);
537 }
538
539
540 static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
541 struct sk_buff *skb)
542 {
543 switch (data->ps) {
544 case PS_DISABLED:
545 return true;
546 case PS_ENABLED:
547 return false;
548 case PS_AUTO_POLL:
549 /* TODO: accept (some) Beacons by default and other frames only
550 * if pending PS-Poll has been sent */
551 return true;
552 case PS_MANUAL_POLL:
553 /* Allow unicast frames to own address if there is a pending
554 * PS-Poll */
555 if (data->ps_poll_pending &&
556 memcmp(data->hw->wiphy->perm_addr, skb->data + 4,
557 ETH_ALEN) == 0) {
558 data->ps_poll_pending = false;
559 return true;
560 }
561 return false;
562 }
563
564 return true;
565 }
566
567
568 struct mac80211_hwsim_addr_match_data {
569 bool ret;
570 const u8 *addr;
571 };
572
573 static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
574 struct ieee80211_vif *vif)
575 {
576 struct mac80211_hwsim_addr_match_data *md = data;
577 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
578 md->ret = true;
579 }
580
581
582 static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
583 const u8 *addr)
584 {
585 struct mac80211_hwsim_addr_match_data md;
586
587 if (memcmp(addr, data->hw->wiphy->perm_addr, ETH_ALEN) == 0)
588 return true;
589
590 md.ret = false;
591 md.addr = addr;
592 ieee80211_iterate_active_interfaces_atomic(data->hw,
593 IEEE80211_IFACE_ITER_NORMAL,
594 mac80211_hwsim_addr_iter,
595 &md);
596
597 return md.ret;
598 }
599
600 static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
601 struct sk_buff *my_skb,
602 int dst_portid)
603 {
604 struct sk_buff *skb;
605 struct mac80211_hwsim_data *data = hw->priv;
606 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
607 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
608 void *msg_head;
609 unsigned int hwsim_flags = 0;
610 int i;
611 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
612
613 if (data->ps != PS_DISABLED)
614 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
615 /* If the queue contains MAX_QUEUE skb's drop some */
616 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
617 /* Droping until WARN_QUEUE level */
618 while (skb_queue_len(&data->pending) >= WARN_QUEUE)
619 skb_dequeue(&data->pending);
620 }
621
622 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
623 if (skb == NULL)
624 goto nla_put_failure;
625
626 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
627 HWSIM_CMD_FRAME);
628 if (msg_head == NULL) {
629 printk(KERN_DEBUG "mac80211_hwsim: problem with msg_head\n");
630 goto nla_put_failure;
631 }
632
633 if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
634 sizeof(struct mac_address), data->addresses[1].addr))
635 goto nla_put_failure;
636
637 /* We get the skb->data */
638 if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
639 goto nla_put_failure;
640
641 /* We get the flags for this transmission, and we translate them to
642 wmediumd flags */
643
644 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
645 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
646
647 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
648 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
649
650 if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
651 goto nla_put_failure;
652
653 /* We get the tx control (rate and retries) info*/
654
655 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
656 tx_attempts[i].idx = info->status.rates[i].idx;
657 tx_attempts[i].count = info->status.rates[i].count;
658 }
659
660 if (nla_put(skb, HWSIM_ATTR_TX_INFO,
661 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
662 tx_attempts))
663 goto nla_put_failure;
664
665 /* We create a cookie to identify this skb */
666 if (nla_put_u64(skb, HWSIM_ATTR_COOKIE, (unsigned long) my_skb))
667 goto nla_put_failure;
668
669 genlmsg_end(skb, msg_head);
670 genlmsg_unicast(&init_net, skb, dst_portid);
671
672 /* Enqueue the packet */
673 skb_queue_tail(&data->pending, my_skb);
674 return;
675
676 nla_put_failure:
677 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
678 }
679
680 static bool hwsim_chans_compat(struct ieee80211_channel *c1,
681 struct ieee80211_channel *c2)
682 {
683 if (!c1 || !c2)
684 return false;
685
686 return c1->center_freq == c2->center_freq;
687 }
688
689 struct tx_iter_data {
690 struct ieee80211_channel *channel;
691 bool receive;
692 };
693
694 static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
695 struct ieee80211_vif *vif)
696 {
697 struct tx_iter_data *data = _data;
698
699 if (!vif->chanctx_conf)
700 return;
701
702 if (!hwsim_chans_compat(data->channel,
703 rcu_dereference(vif->chanctx_conf)->def.chan))
704 return;
705
706 data->receive = true;
707 }
708
709 static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
710 struct sk_buff *skb,
711 struct ieee80211_channel *chan)
712 {
713 struct mac80211_hwsim_data *data = hw->priv, *data2;
714 bool ack = false;
715 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
716 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
717 struct ieee80211_rx_status rx_status;
718 u64 now;
719
720 memset(&rx_status, 0, sizeof(rx_status));
721 rx_status.flag |= RX_FLAG_MACTIME_START;
722 rx_status.freq = chan->center_freq;
723 rx_status.band = chan->band;
724 if (info->control.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) {
725 rx_status.rate_idx =
726 ieee80211_rate_get_vht_mcs(&info->control.rates[0]);
727 rx_status.vht_nss =
728 ieee80211_rate_get_vht_nss(&info->control.rates[0]);
729 rx_status.flag |= RX_FLAG_VHT;
730 } else {
731 rx_status.rate_idx = info->control.rates[0].idx;
732 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
733 rx_status.flag |= RX_FLAG_HT;
734 }
735 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
736 rx_status.flag |= RX_FLAG_40MHZ;
737 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
738 rx_status.flag |= RX_FLAG_SHORT_GI;
739 /* TODO: simulate real signal strength (and optional packet loss) */
740 rx_status.signal = data->power_level - 50;
741
742 if (data->ps != PS_DISABLED)
743 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
744
745 /* release the skb's source info */
746 skb_orphan(skb);
747 skb_dst_drop(skb);
748 skb->mark = 0;
749 secpath_reset(skb);
750 nf_reset(skb);
751
752 /*
753 * Get absolute mactime here so all HWs RX at the "same time", and
754 * absolute TX time for beacon mactime so the timestamp matches.
755 * Giving beacons a different mactime than non-beacons looks messy, but
756 * it helps the Toffset be exact and a ~10us mactime discrepancy
757 * probably doesn't really matter.
758 */
759 if (ieee80211_is_beacon(hdr->frame_control) ||
760 ieee80211_is_probe_resp(hdr->frame_control))
761 now = data->abs_bcn_ts;
762 else
763 now = mac80211_hwsim_get_tsf_raw();
764
765 /* Copy skb to all enabled radios that are on the current frequency */
766 spin_lock(&hwsim_radio_lock);
767 list_for_each_entry(data2, &hwsim_radios, list) {
768 struct sk_buff *nskb;
769 struct tx_iter_data tx_iter_data = {
770 .receive = false,
771 .channel = chan,
772 };
773
774 if (data == data2)
775 continue;
776
777 if (!data2->started || (data2->idle && !data2->tmp_chan) ||
778 !hwsim_ps_rx_ok(data2, skb))
779 continue;
780
781 if (!(data->group & data2->group))
782 continue;
783
784 if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
785 !hwsim_chans_compat(chan, data2->channel)) {
786 ieee80211_iterate_active_interfaces_atomic(
787 data2->hw, IEEE80211_IFACE_ITER_NORMAL,
788 mac80211_hwsim_tx_iter, &tx_iter_data);
789 if (!tx_iter_data.receive)
790 continue;
791 }
792
793 /*
794 * reserve some space for our vendor and the normal
795 * radiotap header, since we're copying anyway
796 */
797 if (skb->len < PAGE_SIZE && paged_rx) {
798 struct page *page = alloc_page(GFP_ATOMIC);
799
800 if (!page)
801 continue;
802
803 nskb = dev_alloc_skb(128);
804 if (!nskb) {
805 __free_page(page);
806 continue;
807 }
808
809 memcpy(page_address(page), skb->data, skb->len);
810 skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
811 } else {
812 nskb = skb_copy(skb, GFP_ATOMIC);
813 if (!nskb)
814 continue;
815 }
816
817 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
818 ack = true;
819
820 rx_status.mactime = now + data2->tsf_offset;
821 #if 0
822 /*
823 * Don't enable this code by default as the OUI 00:00:00
824 * is registered to Xerox so we shouldn't use it here, it
825 * might find its way into pcap files.
826 * Note that this code requires the headroom in the SKB
827 * that was allocated earlier.
828 */
829 rx_status.vendor_radiotap_oui[0] = 0x00;
830 rx_status.vendor_radiotap_oui[1] = 0x00;
831 rx_status.vendor_radiotap_oui[2] = 0x00;
832 rx_status.vendor_radiotap_subns = 127;
833 /*
834 * Radiotap vendor namespaces can (and should) also be
835 * split into fields by using the standard radiotap
836 * presence bitmap mechanism. Use just BIT(0) here for
837 * the presence bitmap.
838 */
839 rx_status.vendor_radiotap_bitmap = BIT(0);
840 /* We have 8 bytes of (dummy) data */
841 rx_status.vendor_radiotap_len = 8;
842 /* For testing, also require it to be aligned */
843 rx_status.vendor_radiotap_align = 8;
844 /* push the data */
845 memcpy(skb_push(nskb, 8), "ABCDEFGH", 8);
846 #endif
847
848 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
849 ieee80211_rx_irqsafe(data2->hw, nskb);
850 }
851 spin_unlock(&hwsim_radio_lock);
852
853 return ack;
854 }
855
856 static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
857 struct ieee80211_tx_control *control,
858 struct sk_buff *skb)
859 {
860 struct mac80211_hwsim_data *data = hw->priv;
861 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
862 struct ieee80211_chanctx_conf *chanctx_conf;
863 struct ieee80211_channel *channel;
864 bool ack;
865 u32 _portid;
866
867 if (WARN_ON(skb->len < 10)) {
868 /* Should not happen; just a sanity check for addr1 use */
869 ieee80211_free_txskb(hw, skb);
870 return;
871 }
872
873 if (channels == 1) {
874 channel = data->channel;
875 } else if (txi->hw_queue == 4) {
876 channel = data->tmp_chan;
877 } else {
878 chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf);
879 if (chanctx_conf)
880 channel = chanctx_conf->def.chan;
881 else
882 channel = NULL;
883 }
884
885 if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
886 ieee80211_free_txskb(hw, skb);
887 return;
888 }
889
890 if (data->idle && !data->tmp_chan) {
891 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
892 ieee80211_free_txskb(hw, skb);
893 return;
894 }
895
896 if (txi->control.vif)
897 hwsim_check_magic(txi->control.vif);
898 if (control->sta)
899 hwsim_check_sta_magic(control->sta);
900
901 if (rctbl)
902 ieee80211_get_tx_rates(txi->control.vif, control->sta, skb,
903 txi->control.rates,
904 ARRAY_SIZE(txi->control.rates));
905
906 txi->rate_driver_data[0] = channel;
907 mac80211_hwsim_monitor_rx(hw, skb, channel);
908
909 /* wmediumd mode check */
910 _portid = ACCESS_ONCE(wmediumd_portid);
911
912 if (_portid)
913 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
914
915 /* NO wmediumd detected, perfect medium simulation */
916 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
917
918 if (ack && skb->len >= 16) {
919 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
920 mac80211_hwsim_monitor_ack(channel, hdr->addr2);
921 }
922
923 ieee80211_tx_info_clear_status(txi);
924
925 /* frame was transmitted at most favorable rate at first attempt */
926 txi->control.rates[0].count = 1;
927 txi->control.rates[1].idx = -1;
928
929 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
930 txi->flags |= IEEE80211_TX_STAT_ACK;
931 ieee80211_tx_status_irqsafe(hw, skb);
932 }
933
934
935 static int mac80211_hwsim_start(struct ieee80211_hw *hw)
936 {
937 struct mac80211_hwsim_data *data = hw->priv;
938 wiphy_debug(hw->wiphy, "%s\n", __func__);
939 data->started = true;
940 return 0;
941 }
942
943
944 static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
945 {
946 struct mac80211_hwsim_data *data = hw->priv;
947 data->started = false;
948 tasklet_hrtimer_cancel(&data->beacon_timer);
949 wiphy_debug(hw->wiphy, "%s\n", __func__);
950 }
951
952
953 static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
954 struct ieee80211_vif *vif)
955 {
956 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
957 __func__, ieee80211_vif_type_p2p(vif),
958 vif->addr);
959 hwsim_set_magic(vif);
960
961 vif->cab_queue = 0;
962 vif->hw_queue[IEEE80211_AC_VO] = 0;
963 vif->hw_queue[IEEE80211_AC_VI] = 1;
964 vif->hw_queue[IEEE80211_AC_BE] = 2;
965 vif->hw_queue[IEEE80211_AC_BK] = 3;
966
967 return 0;
968 }
969
970
971 static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
972 struct ieee80211_vif *vif,
973 enum nl80211_iftype newtype,
974 bool newp2p)
975 {
976 newtype = ieee80211_iftype_p2p(newtype, newp2p);
977 wiphy_debug(hw->wiphy,
978 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
979 __func__, ieee80211_vif_type_p2p(vif),
980 newtype, vif->addr);
981 hwsim_check_magic(vif);
982
983 /*
984 * interface may change from non-AP to AP in
985 * which case this needs to be set up again
986 */
987 vif->cab_queue = 0;
988
989 return 0;
990 }
991
992 static void mac80211_hwsim_remove_interface(
993 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
994 {
995 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
996 __func__, ieee80211_vif_type_p2p(vif),
997 vif->addr);
998 hwsim_check_magic(vif);
999 hwsim_clear_magic(vif);
1000 }
1001
1002 static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
1003 struct sk_buff *skb,
1004 struct ieee80211_channel *chan)
1005 {
1006 u32 _pid = ACCESS_ONCE(wmediumd_portid);
1007
1008 if (rctbl) {
1009 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1010 ieee80211_get_tx_rates(txi->control.vif, NULL, skb,
1011 txi->control.rates,
1012 ARRAY_SIZE(txi->control.rates));
1013 }
1014
1015 mac80211_hwsim_monitor_rx(hw, skb, chan);
1016
1017 if (_pid)
1018 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
1019
1020 mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
1021 dev_kfree_skb(skb);
1022 }
1023
1024 static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
1025 struct ieee80211_vif *vif)
1026 {
1027 struct mac80211_hwsim_data *data = arg;
1028 struct ieee80211_hw *hw = data->hw;
1029 struct ieee80211_tx_info *info;
1030 struct ieee80211_rate *txrate;
1031 struct ieee80211_mgmt *mgmt;
1032 struct sk_buff *skb;
1033
1034 hwsim_check_magic(vif);
1035
1036 if (vif->type != NL80211_IFTYPE_AP &&
1037 vif->type != NL80211_IFTYPE_MESH_POINT &&
1038 vif->type != NL80211_IFTYPE_ADHOC)
1039 return;
1040
1041 skb = ieee80211_beacon_get(hw, vif);
1042 if (skb == NULL)
1043 return;
1044 info = IEEE80211_SKB_CB(skb);
1045 if (rctbl)
1046 ieee80211_get_tx_rates(vif, NULL, skb,
1047 info->control.rates,
1048 ARRAY_SIZE(info->control.rates));
1049
1050 txrate = ieee80211_get_tx_rate(hw, info);
1051
1052 mgmt = (struct ieee80211_mgmt *) skb->data;
1053 /* fake header transmission time */
1054 data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
1055 mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
1056 data->tsf_offset +
1057 24 * 8 * 10 / txrate->bitrate);
1058
1059 mac80211_hwsim_tx_frame(hw, skb,
1060 rcu_dereference(vif->chanctx_conf)->def.chan);
1061 }
1062
1063 static enum hrtimer_restart
1064 mac80211_hwsim_beacon(struct hrtimer *timer)
1065 {
1066 struct mac80211_hwsim_data *data =
1067 container_of(timer, struct mac80211_hwsim_data,
1068 beacon_timer.timer);
1069 struct ieee80211_hw *hw = data->hw;
1070 u64 bcn_int = data->beacon_int;
1071 ktime_t next_bcn;
1072
1073 if (!data->started)
1074 goto out;
1075
1076 ieee80211_iterate_active_interfaces_atomic(
1077 hw, IEEE80211_IFACE_ITER_NORMAL,
1078 mac80211_hwsim_beacon_tx, data);
1079
1080 /* beacon at new TBTT + beacon interval */
1081 if (data->bcn_delta) {
1082 bcn_int -= data->bcn_delta;
1083 data->bcn_delta = 0;
1084 }
1085
1086 next_bcn = ktime_add(hrtimer_get_expires(timer),
1087 ns_to_ktime(bcn_int * 1000));
1088 tasklet_hrtimer_start(&data->beacon_timer, next_bcn, HRTIMER_MODE_ABS);
1089 out:
1090 return HRTIMER_NORESTART;
1091 }
1092
1093 static const char * const hwsim_chanwidths[] = {
1094 [NL80211_CHAN_WIDTH_20_NOHT] = "noht",
1095 [NL80211_CHAN_WIDTH_20] = "ht20",
1096 [NL80211_CHAN_WIDTH_40] = "ht40",
1097 [NL80211_CHAN_WIDTH_80] = "vht80",
1098 [NL80211_CHAN_WIDTH_80P80] = "vht80p80",
1099 [NL80211_CHAN_WIDTH_160] = "vht160",
1100 };
1101
1102 static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
1103 {
1104 struct mac80211_hwsim_data *data = hw->priv;
1105 struct ieee80211_conf *conf = &hw->conf;
1106 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
1107 [IEEE80211_SMPS_AUTOMATIC] = "auto",
1108 [IEEE80211_SMPS_OFF] = "off",
1109 [IEEE80211_SMPS_STATIC] = "static",
1110 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
1111 };
1112
1113 if (conf->chandef.chan)
1114 wiphy_debug(hw->wiphy,
1115 "%s (freq=%d(%d - %d)/%s idle=%d ps=%d smps=%s)\n",
1116 __func__,
1117 conf->chandef.chan->center_freq,
1118 conf->chandef.center_freq1,
1119 conf->chandef.center_freq2,
1120 hwsim_chanwidths[conf->chandef.width],
1121 !!(conf->flags & IEEE80211_CONF_IDLE),
1122 !!(conf->flags & IEEE80211_CONF_PS),
1123 smps_modes[conf->smps_mode]);
1124 else
1125 wiphy_debug(hw->wiphy,
1126 "%s (freq=0 idle=%d ps=%d smps=%s)\n",
1127 __func__,
1128 !!(conf->flags & IEEE80211_CONF_IDLE),
1129 !!(conf->flags & IEEE80211_CONF_PS),
1130 smps_modes[conf->smps_mode]);
1131
1132 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1133
1134 data->channel = conf->chandef.chan;
1135
1136 WARN_ON(data->channel && channels > 1);
1137
1138 data->power_level = conf->power_level;
1139 if (!data->started || !data->beacon_int)
1140 tasklet_hrtimer_cancel(&data->beacon_timer);
1141 else if (!hrtimer_is_queued(&data->beacon_timer.timer)) {
1142 u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
1143 u32 bcn_int = data->beacon_int;
1144 u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1145
1146 tasklet_hrtimer_start(&data->beacon_timer,
1147 ns_to_ktime(until_tbtt * 1000),
1148 HRTIMER_MODE_REL);
1149 }
1150
1151 return 0;
1152 }
1153
1154
1155 static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
1156 unsigned int changed_flags,
1157 unsigned int *total_flags,u64 multicast)
1158 {
1159 struct mac80211_hwsim_data *data = hw->priv;
1160
1161 wiphy_debug(hw->wiphy, "%s\n", __func__);
1162
1163 data->rx_filter = 0;
1164 if (*total_flags & FIF_PROMISC_IN_BSS)
1165 data->rx_filter |= FIF_PROMISC_IN_BSS;
1166 if (*total_flags & FIF_ALLMULTI)
1167 data->rx_filter |= FIF_ALLMULTI;
1168
1169 *total_flags = data->rx_filter;
1170 }
1171
1172 static void mac80211_hwsim_bcn_en_iter(void *data, u8 *mac,
1173 struct ieee80211_vif *vif)
1174 {
1175 unsigned int *count = data;
1176 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1177
1178 if (vp->bcn_en)
1179 (*count)++;
1180 }
1181
1182 static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
1183 struct ieee80211_vif *vif,
1184 struct ieee80211_bss_conf *info,
1185 u32 changed)
1186 {
1187 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1188 struct mac80211_hwsim_data *data = hw->priv;
1189
1190 hwsim_check_magic(vif);
1191
1192 wiphy_debug(hw->wiphy, "%s(changed=0x%x vif->addr=%pM)\n",
1193 __func__, changed, vif->addr);
1194
1195 if (changed & BSS_CHANGED_BSSID) {
1196 wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
1197 __func__, info->bssid);
1198 memcpy(vp->bssid, info->bssid, ETH_ALEN);
1199 }
1200
1201 if (changed & BSS_CHANGED_ASSOC) {
1202 wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
1203 info->assoc, info->aid);
1204 vp->assoc = info->assoc;
1205 vp->aid = info->aid;
1206 }
1207
1208 if (changed & BSS_CHANGED_BEACON_INT) {
1209 wiphy_debug(hw->wiphy, " BCNINT: %d\n", info->beacon_int);
1210 data->beacon_int = info->beacon_int * 1024;
1211 }
1212
1213 if (changed & BSS_CHANGED_BEACON_ENABLED) {
1214 wiphy_debug(hw->wiphy, " BCN EN: %d\n", info->enable_beacon);
1215 vp->bcn_en = info->enable_beacon;
1216 if (data->started &&
1217 !hrtimer_is_queued(&data->beacon_timer.timer) &&
1218 info->enable_beacon) {
1219 u64 tsf, until_tbtt;
1220 u32 bcn_int;
1221 if (WARN_ON(!data->beacon_int))
1222 data->beacon_int = 1000 * 1024;
1223 tsf = mac80211_hwsim_get_tsf(hw, vif);
1224 bcn_int = data->beacon_int;
1225 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1226 tasklet_hrtimer_start(&data->beacon_timer,
1227 ns_to_ktime(until_tbtt * 1000),
1228 HRTIMER_MODE_REL);
1229 } else if (!info->enable_beacon) {
1230 unsigned int count = 0;
1231 ieee80211_iterate_active_interfaces(
1232 data->hw, IEEE80211_IFACE_ITER_NORMAL,
1233 mac80211_hwsim_bcn_en_iter, &count);
1234 wiphy_debug(hw->wiphy, " beaconing vifs remaining: %u",
1235 count);
1236 if (count == 0)
1237 tasklet_hrtimer_cancel(&data->beacon_timer);
1238 }
1239 }
1240
1241 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
1242 wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
1243 info->use_cts_prot);
1244 }
1245
1246 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
1247 wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
1248 info->use_short_preamble);
1249 }
1250
1251 if (changed & BSS_CHANGED_ERP_SLOT) {
1252 wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
1253 }
1254
1255 if (changed & BSS_CHANGED_HT) {
1256 wiphy_debug(hw->wiphy, " HT: op_mode=0x%x\n",
1257 info->ht_operation_mode);
1258 }
1259
1260 if (changed & BSS_CHANGED_BASIC_RATES) {
1261 wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
1262 (unsigned long long) info->basic_rates);
1263 }
1264
1265 if (changed & BSS_CHANGED_TXPOWER)
1266 wiphy_debug(hw->wiphy, " TX Power: %d dBm\n", info->txpower);
1267 }
1268
1269 static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
1270 struct ieee80211_vif *vif,
1271 struct ieee80211_sta *sta)
1272 {
1273 hwsim_check_magic(vif);
1274 hwsim_set_sta_magic(sta);
1275
1276 return 0;
1277 }
1278
1279 static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
1280 struct ieee80211_vif *vif,
1281 struct ieee80211_sta *sta)
1282 {
1283 hwsim_check_magic(vif);
1284 hwsim_clear_sta_magic(sta);
1285
1286 return 0;
1287 }
1288
1289 static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
1290 struct ieee80211_vif *vif,
1291 enum sta_notify_cmd cmd,
1292 struct ieee80211_sta *sta)
1293 {
1294 hwsim_check_magic(vif);
1295
1296 switch (cmd) {
1297 case STA_NOTIFY_SLEEP:
1298 case STA_NOTIFY_AWAKE:
1299 /* TODO: make good use of these flags */
1300 break;
1301 default:
1302 WARN(1, "Invalid sta notify: %d\n", cmd);
1303 break;
1304 }
1305 }
1306
1307 static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
1308 struct ieee80211_sta *sta,
1309 bool set)
1310 {
1311 hwsim_check_sta_magic(sta);
1312 return 0;
1313 }
1314
1315 static int mac80211_hwsim_conf_tx(
1316 struct ieee80211_hw *hw,
1317 struct ieee80211_vif *vif, u16 queue,
1318 const struct ieee80211_tx_queue_params *params)
1319 {
1320 wiphy_debug(hw->wiphy,
1321 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1322 __func__, queue,
1323 params->txop, params->cw_min,
1324 params->cw_max, params->aifs);
1325 return 0;
1326 }
1327
1328 static int mac80211_hwsim_get_survey(
1329 struct ieee80211_hw *hw, int idx,
1330 struct survey_info *survey)
1331 {
1332 struct ieee80211_conf *conf = &hw->conf;
1333
1334 wiphy_debug(hw->wiphy, "%s (idx=%d)\n", __func__, idx);
1335
1336 if (idx != 0)
1337 return -ENOENT;
1338
1339 /* Current channel */
1340 survey->channel = conf->chandef.chan;
1341
1342 /*
1343 * Magically conjured noise level --- this is only ok for simulated hardware.
1344 *
1345 * A real driver which cannot determine the real channel noise MUST NOT
1346 * report any noise, especially not a magically conjured one :-)
1347 */
1348 survey->filled = SURVEY_INFO_NOISE_DBM;
1349 survey->noise = -92;
1350
1351 return 0;
1352 }
1353
1354 #ifdef CONFIG_NL80211_TESTMODE
1355 /*
1356 * This section contains example code for using netlink
1357 * attributes with the testmode command in nl80211.
1358 */
1359
1360 /* These enums need to be kept in sync with userspace */
1361 enum hwsim_testmode_attr {
1362 __HWSIM_TM_ATTR_INVALID = 0,
1363 HWSIM_TM_ATTR_CMD = 1,
1364 HWSIM_TM_ATTR_PS = 2,
1365
1366 /* keep last */
1367 __HWSIM_TM_ATTR_AFTER_LAST,
1368 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1369 };
1370
1371 enum hwsim_testmode_cmd {
1372 HWSIM_TM_CMD_SET_PS = 0,
1373 HWSIM_TM_CMD_GET_PS = 1,
1374 HWSIM_TM_CMD_STOP_QUEUES = 2,
1375 HWSIM_TM_CMD_WAKE_QUEUES = 3,
1376 };
1377
1378 static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1379 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1380 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1381 };
1382
1383 static int hwsim_fops_ps_write(void *dat, u64 val);
1384
1385 static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
1386 struct ieee80211_vif *vif,
1387 void *data, int len)
1388 {
1389 struct mac80211_hwsim_data *hwsim = hw->priv;
1390 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1391 struct sk_buff *skb;
1392 int err, ps;
1393
1394 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
1395 hwsim_testmode_policy);
1396 if (err)
1397 return err;
1398
1399 if (!tb[HWSIM_TM_ATTR_CMD])
1400 return -EINVAL;
1401
1402 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1403 case HWSIM_TM_CMD_SET_PS:
1404 if (!tb[HWSIM_TM_ATTR_PS])
1405 return -EINVAL;
1406 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1407 return hwsim_fops_ps_write(hwsim, ps);
1408 case HWSIM_TM_CMD_GET_PS:
1409 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1410 nla_total_size(sizeof(u32)));
1411 if (!skb)
1412 return -ENOMEM;
1413 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
1414 goto nla_put_failure;
1415 return cfg80211_testmode_reply(skb);
1416 case HWSIM_TM_CMD_STOP_QUEUES:
1417 ieee80211_stop_queues(hw);
1418 return 0;
1419 case HWSIM_TM_CMD_WAKE_QUEUES:
1420 ieee80211_wake_queues(hw);
1421 return 0;
1422 default:
1423 return -EOPNOTSUPP;
1424 }
1425
1426 nla_put_failure:
1427 kfree_skb(skb);
1428 return -ENOBUFS;
1429 }
1430 #endif
1431
1432 static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1433 struct ieee80211_vif *vif,
1434 enum ieee80211_ampdu_mlme_action action,
1435 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
1436 u8 buf_size)
1437 {
1438 switch (action) {
1439 case IEEE80211_AMPDU_TX_START:
1440 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1441 break;
1442 case IEEE80211_AMPDU_TX_STOP_CONT:
1443 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1444 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1445 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1446 break;
1447 case IEEE80211_AMPDU_TX_OPERATIONAL:
1448 break;
1449 case IEEE80211_AMPDU_RX_START:
1450 case IEEE80211_AMPDU_RX_STOP:
1451 break;
1452 default:
1453 return -EOPNOTSUPP;
1454 }
1455
1456 return 0;
1457 }
1458
1459 static void mac80211_hwsim_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
1460 {
1461 /* Not implemented, queues only on kernel side */
1462 }
1463
1464 static void hw_scan_work(struct work_struct *work)
1465 {
1466 struct mac80211_hwsim_data *hwsim =
1467 container_of(work, struct mac80211_hwsim_data, hw_scan.work);
1468 struct cfg80211_scan_request *req = hwsim->hw_scan_request;
1469 int dwell, i;
1470
1471 mutex_lock(&hwsim->mutex);
1472 if (hwsim->scan_chan_idx >= req->n_channels) {
1473 wiphy_debug(hwsim->hw->wiphy, "hw scan complete\n");
1474 ieee80211_scan_completed(hwsim->hw, false);
1475 hwsim->hw_scan_request = NULL;
1476 hwsim->hw_scan_vif = NULL;
1477 hwsim->tmp_chan = NULL;
1478 mutex_unlock(&hwsim->mutex);
1479 return;
1480 }
1481
1482 wiphy_debug(hwsim->hw->wiphy, "hw scan %d MHz\n",
1483 req->channels[hwsim->scan_chan_idx]->center_freq);
1484
1485 hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
1486 if (hwsim->tmp_chan->flags & IEEE80211_CHAN_NO_IR ||
1487 !req->n_ssids) {
1488 dwell = 120;
1489 } else {
1490 dwell = 30;
1491 /* send probes */
1492 for (i = 0; i < req->n_ssids; i++) {
1493 struct sk_buff *probe;
1494
1495 probe = ieee80211_probereq_get(hwsim->hw,
1496 hwsim->hw_scan_vif,
1497 req->ssids[i].ssid,
1498 req->ssids[i].ssid_len,
1499 req->ie_len);
1500 if (!probe)
1501 continue;
1502
1503 if (req->ie_len)
1504 memcpy(skb_put(probe, req->ie_len), req->ie,
1505 req->ie_len);
1506
1507 local_bh_disable();
1508 mac80211_hwsim_tx_frame(hwsim->hw, probe,
1509 hwsim->tmp_chan);
1510 local_bh_enable();
1511 }
1512 }
1513 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
1514 msecs_to_jiffies(dwell));
1515 hwsim->scan_chan_idx++;
1516 mutex_unlock(&hwsim->mutex);
1517 }
1518
1519 static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
1520 struct ieee80211_vif *vif,
1521 struct cfg80211_scan_request *req)
1522 {
1523 struct mac80211_hwsim_data *hwsim = hw->priv;
1524
1525 mutex_lock(&hwsim->mutex);
1526 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1527 mutex_unlock(&hwsim->mutex);
1528 return -EBUSY;
1529 }
1530 hwsim->hw_scan_request = req;
1531 hwsim->hw_scan_vif = vif;
1532 hwsim->scan_chan_idx = 0;
1533 mutex_unlock(&hwsim->mutex);
1534
1535 wiphy_debug(hw->wiphy, "hwsim hw_scan request\n");
1536
1537 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
1538
1539 return 0;
1540 }
1541
1542 static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
1543 struct ieee80211_vif *vif)
1544 {
1545 struct mac80211_hwsim_data *hwsim = hw->priv;
1546
1547 wiphy_debug(hw->wiphy, "hwsim cancel_hw_scan\n");
1548
1549 cancel_delayed_work_sync(&hwsim->hw_scan);
1550
1551 mutex_lock(&hwsim->mutex);
1552 ieee80211_scan_completed(hwsim->hw, true);
1553 hwsim->tmp_chan = NULL;
1554 hwsim->hw_scan_request = NULL;
1555 hwsim->hw_scan_vif = NULL;
1556 mutex_unlock(&hwsim->mutex);
1557 }
1558
1559 static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw)
1560 {
1561 struct mac80211_hwsim_data *hwsim = hw->priv;
1562
1563 mutex_lock(&hwsim->mutex);
1564
1565 if (hwsim->scanning) {
1566 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
1567 goto out;
1568 }
1569
1570 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
1571 hwsim->scanning = true;
1572
1573 out:
1574 mutex_unlock(&hwsim->mutex);
1575 }
1576
1577 static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw)
1578 {
1579 struct mac80211_hwsim_data *hwsim = hw->priv;
1580
1581 mutex_lock(&hwsim->mutex);
1582
1583 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
1584 hwsim->scanning = false;
1585
1586 mutex_unlock(&hwsim->mutex);
1587 }
1588
1589 static void hw_roc_done(struct work_struct *work)
1590 {
1591 struct mac80211_hwsim_data *hwsim =
1592 container_of(work, struct mac80211_hwsim_data, roc_done.work);
1593
1594 mutex_lock(&hwsim->mutex);
1595 ieee80211_remain_on_channel_expired(hwsim->hw);
1596 hwsim->tmp_chan = NULL;
1597 mutex_unlock(&hwsim->mutex);
1598
1599 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC expired\n");
1600 }
1601
1602 static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
1603 struct ieee80211_vif *vif,
1604 struct ieee80211_channel *chan,
1605 int duration,
1606 enum ieee80211_roc_type type)
1607 {
1608 struct mac80211_hwsim_data *hwsim = hw->priv;
1609
1610 mutex_lock(&hwsim->mutex);
1611 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1612 mutex_unlock(&hwsim->mutex);
1613 return -EBUSY;
1614 }
1615
1616 hwsim->tmp_chan = chan;
1617 mutex_unlock(&hwsim->mutex);
1618
1619 wiphy_debug(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
1620 chan->center_freq, duration);
1621
1622 ieee80211_ready_on_channel(hw);
1623
1624 ieee80211_queue_delayed_work(hw, &hwsim->roc_done,
1625 msecs_to_jiffies(duration));
1626 return 0;
1627 }
1628
1629 static int mac80211_hwsim_croc(struct ieee80211_hw *hw)
1630 {
1631 struct mac80211_hwsim_data *hwsim = hw->priv;
1632
1633 cancel_delayed_work_sync(&hwsim->roc_done);
1634
1635 mutex_lock(&hwsim->mutex);
1636 hwsim->tmp_chan = NULL;
1637 mutex_unlock(&hwsim->mutex);
1638
1639 wiphy_debug(hw->wiphy, "hwsim ROC canceled\n");
1640
1641 return 0;
1642 }
1643
1644 static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
1645 struct ieee80211_chanctx_conf *ctx)
1646 {
1647 hwsim_set_chanctx_magic(ctx);
1648 wiphy_debug(hw->wiphy,
1649 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1650 ctx->def.chan->center_freq, ctx->def.width,
1651 ctx->def.center_freq1, ctx->def.center_freq2);
1652 return 0;
1653 }
1654
1655 static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
1656 struct ieee80211_chanctx_conf *ctx)
1657 {
1658 wiphy_debug(hw->wiphy,
1659 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1660 ctx->def.chan->center_freq, ctx->def.width,
1661 ctx->def.center_freq1, ctx->def.center_freq2);
1662 hwsim_check_chanctx_magic(ctx);
1663 hwsim_clear_chanctx_magic(ctx);
1664 }
1665
1666 static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
1667 struct ieee80211_chanctx_conf *ctx,
1668 u32 changed)
1669 {
1670 hwsim_check_chanctx_magic(ctx);
1671 wiphy_debug(hw->wiphy,
1672 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1673 ctx->def.chan->center_freq, ctx->def.width,
1674 ctx->def.center_freq1, ctx->def.center_freq2);
1675 }
1676
1677 static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
1678 struct ieee80211_vif *vif,
1679 struct ieee80211_chanctx_conf *ctx)
1680 {
1681 hwsim_check_magic(vif);
1682 hwsim_check_chanctx_magic(ctx);
1683
1684 return 0;
1685 }
1686
1687 static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
1688 struct ieee80211_vif *vif,
1689 struct ieee80211_chanctx_conf *ctx)
1690 {
1691 hwsim_check_magic(vif);
1692 hwsim_check_chanctx_magic(ctx);
1693 }
1694
1695 static struct ieee80211_ops mac80211_hwsim_ops =
1696 {
1697 .tx = mac80211_hwsim_tx,
1698 .start = mac80211_hwsim_start,
1699 .stop = mac80211_hwsim_stop,
1700 .add_interface = mac80211_hwsim_add_interface,
1701 .change_interface = mac80211_hwsim_change_interface,
1702 .remove_interface = mac80211_hwsim_remove_interface,
1703 .config = mac80211_hwsim_config,
1704 .configure_filter = mac80211_hwsim_configure_filter,
1705 .bss_info_changed = mac80211_hwsim_bss_info_changed,
1706 .sta_add = mac80211_hwsim_sta_add,
1707 .sta_remove = mac80211_hwsim_sta_remove,
1708 .sta_notify = mac80211_hwsim_sta_notify,
1709 .set_tim = mac80211_hwsim_set_tim,
1710 .conf_tx = mac80211_hwsim_conf_tx,
1711 .get_survey = mac80211_hwsim_get_survey,
1712 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
1713 .ampdu_action = mac80211_hwsim_ampdu_action,
1714 .sw_scan_start = mac80211_hwsim_sw_scan,
1715 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
1716 .flush = mac80211_hwsim_flush,
1717 .get_tsf = mac80211_hwsim_get_tsf,
1718 .set_tsf = mac80211_hwsim_set_tsf,
1719 };
1720
1721
1722 static void mac80211_hwsim_free(void)
1723 {
1724 struct list_head tmplist, *i, *tmp;
1725 struct mac80211_hwsim_data *data, *tmpdata;
1726
1727 INIT_LIST_HEAD(&tmplist);
1728
1729 spin_lock_bh(&hwsim_radio_lock);
1730 list_for_each_safe(i, tmp, &hwsim_radios)
1731 list_move(i, &tmplist);
1732 spin_unlock_bh(&hwsim_radio_lock);
1733
1734 list_for_each_entry_safe(data, tmpdata, &tmplist, list) {
1735 debugfs_remove_recursive(data->debugfs);
1736 ieee80211_unregister_hw(data->hw);
1737 device_release_driver(data->dev);
1738 device_unregister(data->dev);
1739 ieee80211_free_hw(data->hw);
1740 }
1741 class_destroy(hwsim_class);
1742 }
1743
1744 static struct platform_driver mac80211_hwsim_driver = {
1745 .driver = {
1746 .name = "mac80211_hwsim",
1747 .owner = THIS_MODULE,
1748 },
1749 };
1750
1751 static const struct net_device_ops hwsim_netdev_ops = {
1752 .ndo_start_xmit = hwsim_mon_xmit,
1753 .ndo_change_mtu = eth_change_mtu,
1754 .ndo_set_mac_address = eth_mac_addr,
1755 .ndo_validate_addr = eth_validate_addr,
1756 };
1757
1758 static void hwsim_mon_setup(struct net_device *dev)
1759 {
1760 dev->netdev_ops = &hwsim_netdev_ops;
1761 dev->destructor = free_netdev;
1762 ether_setup(dev);
1763 dev->tx_queue_len = 0;
1764 dev->type = ARPHRD_IEEE80211_RADIOTAP;
1765 memset(dev->dev_addr, 0, ETH_ALEN);
1766 dev->dev_addr[0] = 0x12;
1767 }
1768
1769
1770 static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
1771 {
1772 struct mac80211_hwsim_data *data = dat;
1773 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1774 struct sk_buff *skb;
1775 struct ieee80211_pspoll *pspoll;
1776
1777 if (!vp->assoc)
1778 return;
1779
1780 wiphy_debug(data->hw->wiphy,
1781 "%s: send PS-Poll to %pM for aid %d\n",
1782 __func__, vp->bssid, vp->aid);
1783
1784 skb = dev_alloc_skb(sizeof(*pspoll));
1785 if (!skb)
1786 return;
1787 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
1788 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
1789 IEEE80211_STYPE_PSPOLL |
1790 IEEE80211_FCTL_PM);
1791 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
1792 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
1793 memcpy(pspoll->ta, mac, ETH_ALEN);
1794
1795 rcu_read_lock();
1796 mac80211_hwsim_tx_frame(data->hw, skb,
1797 rcu_dereference(vif->chanctx_conf)->def.chan);
1798 rcu_read_unlock();
1799 }
1800
1801 static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
1802 struct ieee80211_vif *vif, int ps)
1803 {
1804 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1805 struct sk_buff *skb;
1806 struct ieee80211_hdr *hdr;
1807
1808 if (!vp->assoc)
1809 return;
1810
1811 wiphy_debug(data->hw->wiphy,
1812 "%s: send data::nullfunc to %pM ps=%d\n",
1813 __func__, vp->bssid, ps);
1814
1815 skb = dev_alloc_skb(sizeof(*hdr));
1816 if (!skb)
1817 return;
1818 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
1819 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1820 IEEE80211_STYPE_NULLFUNC |
1821 (ps ? IEEE80211_FCTL_PM : 0));
1822 hdr->duration_id = cpu_to_le16(0);
1823 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
1824 memcpy(hdr->addr2, mac, ETH_ALEN);
1825 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
1826
1827 rcu_read_lock();
1828 mac80211_hwsim_tx_frame(data->hw, skb,
1829 rcu_dereference(vif->chanctx_conf)->def.chan);
1830 rcu_read_unlock();
1831 }
1832
1833
1834 static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
1835 struct ieee80211_vif *vif)
1836 {
1837 struct mac80211_hwsim_data *data = dat;
1838 hwsim_send_nullfunc(data, mac, vif, 1);
1839 }
1840
1841
1842 static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
1843 struct ieee80211_vif *vif)
1844 {
1845 struct mac80211_hwsim_data *data = dat;
1846 hwsim_send_nullfunc(data, mac, vif, 0);
1847 }
1848
1849
1850 static int hwsim_fops_ps_read(void *dat, u64 *val)
1851 {
1852 struct mac80211_hwsim_data *data = dat;
1853 *val = data->ps;
1854 return 0;
1855 }
1856
1857 static int hwsim_fops_ps_write(void *dat, u64 val)
1858 {
1859 struct mac80211_hwsim_data *data = dat;
1860 enum ps_mode old_ps;
1861
1862 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
1863 val != PS_MANUAL_POLL)
1864 return -EINVAL;
1865
1866 old_ps = data->ps;
1867 data->ps = val;
1868
1869 if (val == PS_MANUAL_POLL) {
1870 ieee80211_iterate_active_interfaces(data->hw,
1871 IEEE80211_IFACE_ITER_NORMAL,
1872 hwsim_send_ps_poll, data);
1873 data->ps_poll_pending = true;
1874 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
1875 ieee80211_iterate_active_interfaces(data->hw,
1876 IEEE80211_IFACE_ITER_NORMAL,
1877 hwsim_send_nullfunc_ps,
1878 data);
1879 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
1880 ieee80211_iterate_active_interfaces(data->hw,
1881 IEEE80211_IFACE_ITER_NORMAL,
1882 hwsim_send_nullfunc_no_ps,
1883 data);
1884 }
1885
1886 return 0;
1887 }
1888
1889 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
1890 "%llu\n");
1891
1892 static int hwsim_write_simulate_radar(void *dat, u64 val)
1893 {
1894 struct mac80211_hwsim_data *data = dat;
1895
1896 ieee80211_radar_detected(data->hw);
1897
1898 return 0;
1899 }
1900
1901 DEFINE_SIMPLE_ATTRIBUTE(hwsim_simulate_radar, NULL,
1902 hwsim_write_simulate_radar, "%llu\n");
1903
1904 static int hwsim_fops_group_read(void *dat, u64 *val)
1905 {
1906 struct mac80211_hwsim_data *data = dat;
1907 *val = data->group;
1908 return 0;
1909 }
1910
1911 static int hwsim_fops_group_write(void *dat, u64 val)
1912 {
1913 struct mac80211_hwsim_data *data = dat;
1914 data->group = val;
1915 return 0;
1916 }
1917
1918 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
1919 hwsim_fops_group_read, hwsim_fops_group_write,
1920 "%llx\n");
1921
1922 static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(
1923 struct mac_address *addr)
1924 {
1925 struct mac80211_hwsim_data *data;
1926 bool _found = false;
1927
1928 spin_lock_bh(&hwsim_radio_lock);
1929 list_for_each_entry(data, &hwsim_radios, list) {
1930 if (memcmp(data->addresses[1].addr, addr,
1931 sizeof(struct mac_address)) == 0) {
1932 _found = true;
1933 break;
1934 }
1935 }
1936 spin_unlock_bh(&hwsim_radio_lock);
1937
1938 if (!_found)
1939 return NULL;
1940
1941 return data;
1942 }
1943
1944 static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
1945 struct genl_info *info)
1946 {
1947
1948 struct ieee80211_hdr *hdr;
1949 struct mac80211_hwsim_data *data2;
1950 struct ieee80211_tx_info *txi;
1951 struct hwsim_tx_rate *tx_attempts;
1952 unsigned long ret_skb_ptr;
1953 struct sk_buff *skb, *tmp;
1954 struct mac_address *src;
1955 unsigned int hwsim_flags;
1956
1957 int i;
1958 bool found = false;
1959
1960 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
1961 !info->attrs[HWSIM_ATTR_FLAGS] ||
1962 !info->attrs[HWSIM_ATTR_COOKIE] ||
1963 !info->attrs[HWSIM_ATTR_TX_INFO])
1964 goto out;
1965
1966 src = (struct mac_address *)nla_data(
1967 info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
1968 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
1969
1970 ret_skb_ptr = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
1971
1972 data2 = get_hwsim_data_ref_from_addr(src);
1973
1974 if (data2 == NULL)
1975 goto out;
1976
1977 /* look for the skb matching the cookie passed back from user */
1978 skb_queue_walk_safe(&data2->pending, skb, tmp) {
1979 if ((unsigned long)skb == ret_skb_ptr) {
1980 skb_unlink(skb, &data2->pending);
1981 found = true;
1982 break;
1983 }
1984 }
1985
1986 /* not found */
1987 if (!found)
1988 goto out;
1989
1990 /* Tx info received because the frame was broadcasted on user space,
1991 so we get all the necessary info: tx attempts and skb control buff */
1992
1993 tx_attempts = (struct hwsim_tx_rate *)nla_data(
1994 info->attrs[HWSIM_ATTR_TX_INFO]);
1995
1996 /* now send back TX status */
1997 txi = IEEE80211_SKB_CB(skb);
1998
1999 ieee80211_tx_info_clear_status(txi);
2000
2001 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
2002 txi->status.rates[i].idx = tx_attempts[i].idx;
2003 txi->status.rates[i].count = tx_attempts[i].count;
2004 /*txi->status.rates[i].flags = 0;*/
2005 }
2006
2007 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
2008
2009 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
2010 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
2011 if (skb->len >= 16) {
2012 hdr = (struct ieee80211_hdr *) skb->data;
2013 mac80211_hwsim_monitor_ack(txi->rate_driver_data[0],
2014 hdr->addr2);
2015 }
2016 txi->flags |= IEEE80211_TX_STAT_ACK;
2017 }
2018 ieee80211_tx_status_irqsafe(data2->hw, skb);
2019 return 0;
2020 out:
2021 return -EINVAL;
2022
2023 }
2024
2025 static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
2026 struct genl_info *info)
2027 {
2028
2029 struct mac80211_hwsim_data *data2;
2030 struct ieee80211_rx_status rx_status;
2031 struct mac_address *dst;
2032 int frame_data_len;
2033 char *frame_data;
2034 struct sk_buff *skb = NULL;
2035
2036 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
2037 !info->attrs[HWSIM_ATTR_FRAME] ||
2038 !info->attrs[HWSIM_ATTR_RX_RATE] ||
2039 !info->attrs[HWSIM_ATTR_SIGNAL])
2040 goto out;
2041
2042 dst = (struct mac_address *)nla_data(
2043 info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
2044
2045 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
2046 frame_data = (char *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
2047
2048 /* Allocate new skb here */
2049 skb = alloc_skb(frame_data_len, GFP_KERNEL);
2050 if (skb == NULL)
2051 goto err;
2052
2053 if (frame_data_len <= IEEE80211_MAX_DATA_LEN) {
2054 /* Copy the data */
2055 memcpy(skb_put(skb, frame_data_len), frame_data,
2056 frame_data_len);
2057 } else
2058 goto err;
2059
2060 data2 = get_hwsim_data_ref_from_addr(dst);
2061
2062 if (data2 == NULL)
2063 goto out;
2064
2065 /* check if radio is configured properly */
2066
2067 if (data2->idle || !data2->started)
2068 goto out;
2069
2070 /*A frame is received from user space*/
2071 memset(&rx_status, 0, sizeof(rx_status));
2072 rx_status.freq = data2->channel->center_freq;
2073 rx_status.band = data2->channel->band;
2074 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
2075 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
2076
2077 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
2078 ieee80211_rx_irqsafe(data2->hw, skb);
2079
2080 return 0;
2081 err:
2082 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
2083 goto out;
2084 out:
2085 dev_kfree_skb(skb);
2086 return -EINVAL;
2087 }
2088
2089 static int hwsim_register_received_nl(struct sk_buff *skb_2,
2090 struct genl_info *info)
2091 {
2092 if (info == NULL)
2093 goto out;
2094
2095 wmediumd_portid = info->snd_portid;
2096
2097 printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
2098 "switching to wmediumd mode with pid %d\n", info->snd_portid);
2099
2100 return 0;
2101 out:
2102 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
2103 return -EINVAL;
2104 }
2105
2106 /* Generic Netlink operations array */
2107 static struct genl_ops hwsim_ops[] = {
2108 {
2109 .cmd = HWSIM_CMD_REGISTER,
2110 .policy = hwsim_genl_policy,
2111 .doit = hwsim_register_received_nl,
2112 .flags = GENL_ADMIN_PERM,
2113 },
2114 {
2115 .cmd = HWSIM_CMD_FRAME,
2116 .policy = hwsim_genl_policy,
2117 .doit = hwsim_cloned_frame_received_nl,
2118 },
2119 {
2120 .cmd = HWSIM_CMD_TX_INFO_FRAME,
2121 .policy = hwsim_genl_policy,
2122 .doit = hwsim_tx_info_frame_received_nl,
2123 },
2124 };
2125
2126 static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
2127 unsigned long state,
2128 void *_notify)
2129 {
2130 struct netlink_notify *notify = _notify;
2131
2132 if (state != NETLINK_URELEASE)
2133 return NOTIFY_DONE;
2134
2135 if (notify->portid == wmediumd_portid) {
2136 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
2137 " socket, switching to perfect channel medium\n");
2138 wmediumd_portid = 0;
2139 }
2140 return NOTIFY_DONE;
2141
2142 }
2143
2144 static struct notifier_block hwsim_netlink_notifier = {
2145 .notifier_call = mac80211_hwsim_netlink_notify,
2146 };
2147
2148 static int hwsim_init_netlink(void)
2149 {
2150 int rc;
2151
2152 /* userspace test API hasn't been adjusted for multi-channel */
2153 if (channels > 1)
2154 return 0;
2155
2156 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
2157
2158 rc = genl_register_family_with_ops(&hwsim_genl_family,
2159 hwsim_ops, ARRAY_SIZE(hwsim_ops));
2160 if (rc)
2161 goto failure;
2162
2163 rc = netlink_register_notifier(&hwsim_netlink_notifier);
2164 if (rc)
2165 goto failure;
2166
2167 return 0;
2168
2169 failure:
2170 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
2171 return -EINVAL;
2172 }
2173
2174 static void hwsim_exit_netlink(void)
2175 {
2176 int ret;
2177
2178 /* userspace test API hasn't been adjusted for multi-channel */
2179 if (channels > 1)
2180 return;
2181
2182 printk(KERN_INFO "mac80211_hwsim: closing netlink\n");
2183 /* unregister the notifier */
2184 netlink_unregister_notifier(&hwsim_netlink_notifier);
2185 /* unregister the family */
2186 ret = genl_unregister_family(&hwsim_genl_family);
2187 if (ret)
2188 printk(KERN_DEBUG "mac80211_hwsim: "
2189 "unregister family %i\n", ret);
2190 }
2191
2192 static const struct ieee80211_iface_limit hwsim_if_limits[] = {
2193 { .max = 1, .types = BIT(NL80211_IFTYPE_ADHOC) },
2194 { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) |
2195 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2196 #ifdef CONFIG_MAC80211_MESH
2197 BIT(NL80211_IFTYPE_MESH_POINT) |
2198 #endif
2199 BIT(NL80211_IFTYPE_AP) |
2200 BIT(NL80211_IFTYPE_P2P_GO) },
2201 { .max = 1, .types = BIT(NL80211_IFTYPE_P2P_DEVICE) },
2202 };
2203
2204 static const struct ieee80211_iface_limit hwsim_if_dfs_limits[] = {
2205 { .max = 8, .types = BIT(NL80211_IFTYPE_AP) },
2206 };
2207
2208 static struct ieee80211_iface_combination hwsim_if_comb[] = {
2209 {
2210 .limits = hwsim_if_limits,
2211 .n_limits = ARRAY_SIZE(hwsim_if_limits),
2212 .max_interfaces = 2048,
2213 .num_different_channels = 1,
2214 },
2215 {
2216 .limits = hwsim_if_dfs_limits,
2217 .n_limits = ARRAY_SIZE(hwsim_if_dfs_limits),
2218 .max_interfaces = 8,
2219 .num_different_channels = 1,
2220 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
2221 BIT(NL80211_CHAN_WIDTH_20) |
2222 BIT(NL80211_CHAN_WIDTH_40) |
2223 BIT(NL80211_CHAN_WIDTH_80) |
2224 BIT(NL80211_CHAN_WIDTH_160),
2225 }
2226 };
2227
2228 static int __init init_mac80211_hwsim(void)
2229 {
2230 int i, err = 0;
2231 u8 addr[ETH_ALEN];
2232 struct mac80211_hwsim_data *data;
2233 struct ieee80211_hw *hw;
2234 enum ieee80211_band band;
2235
2236 if (radios < 1 || radios > 100)
2237 return -EINVAL;
2238
2239 if (channels < 1)
2240 return -EINVAL;
2241
2242 if (channels > 1) {
2243 hwsim_if_comb[0].num_different_channels = channels;
2244 mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan;
2245 mac80211_hwsim_ops.cancel_hw_scan =
2246 mac80211_hwsim_cancel_hw_scan;
2247 mac80211_hwsim_ops.sw_scan_start = NULL;
2248 mac80211_hwsim_ops.sw_scan_complete = NULL;
2249 mac80211_hwsim_ops.remain_on_channel =
2250 mac80211_hwsim_roc;
2251 mac80211_hwsim_ops.cancel_remain_on_channel =
2252 mac80211_hwsim_croc;
2253 mac80211_hwsim_ops.add_chanctx =
2254 mac80211_hwsim_add_chanctx;
2255 mac80211_hwsim_ops.remove_chanctx =
2256 mac80211_hwsim_remove_chanctx;
2257 mac80211_hwsim_ops.change_chanctx =
2258 mac80211_hwsim_change_chanctx;
2259 mac80211_hwsim_ops.assign_vif_chanctx =
2260 mac80211_hwsim_assign_vif_chanctx;
2261 mac80211_hwsim_ops.unassign_vif_chanctx =
2262 mac80211_hwsim_unassign_vif_chanctx;
2263 }
2264
2265 spin_lock_init(&hwsim_radio_lock);
2266 INIT_LIST_HEAD(&hwsim_radios);
2267
2268 err = platform_driver_register(&mac80211_hwsim_driver);
2269 if (err)
2270 return err;
2271
2272 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
2273 if (IS_ERR(hwsim_class)) {
2274 err = PTR_ERR(hwsim_class);
2275 goto failed_unregister_driver;
2276 }
2277
2278 memset(addr, 0, ETH_ALEN);
2279 addr[0] = 0x02;
2280
2281 for (i = 0; i < radios; i++) {
2282 printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
2283 i);
2284 hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);
2285 if (!hw) {
2286 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
2287 "failed\n");
2288 err = -ENOMEM;
2289 goto failed;
2290 }
2291 data = hw->priv;
2292 data->hw = hw;
2293
2294 data->dev = device_create(hwsim_class, NULL, 0, hw,
2295 "hwsim%d", i);
2296 if (IS_ERR(data->dev)) {
2297 printk(KERN_DEBUG
2298 "mac80211_hwsim: device_create failed (%ld)\n",
2299 PTR_ERR(data->dev));
2300 err = -ENOMEM;
2301 goto failed_drvdata;
2302 }
2303 data->dev->driver = &mac80211_hwsim_driver.driver;
2304 err = device_bind_driver(data->dev);
2305 if (err != 0) {
2306 printk(KERN_DEBUG
2307 "mac80211_hwsim: device_bind_driver failed (%d)\n",
2308 err);
2309 goto failed_hw;
2310 }
2311
2312 skb_queue_head_init(&data->pending);
2313
2314 SET_IEEE80211_DEV(hw, data->dev);
2315 addr[3] = i >> 8;
2316 addr[4] = i;
2317 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
2318 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
2319 data->addresses[1].addr[0] |= 0x40;
2320 hw->wiphy->n_addresses = 2;
2321 hw->wiphy->addresses = data->addresses;
2322
2323 hw->wiphy->iface_combinations = hwsim_if_comb;
2324 hw->wiphy->n_iface_combinations = ARRAY_SIZE(hwsim_if_comb);
2325
2326 if (channels > 1) {
2327 hw->wiphy->max_scan_ssids = 255;
2328 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
2329 hw->wiphy->max_remain_on_channel_duration = 1000;
2330 /* For channels > 1 DFS is not allowed */
2331 hw->wiphy->n_iface_combinations = 1;
2332 }
2333
2334 INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
2335 INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
2336
2337 hw->channel_change_time = 1;
2338 hw->queues = 5;
2339 hw->offchannel_tx_hw_queue = 4;
2340 hw->wiphy->interface_modes =
2341 BIT(NL80211_IFTYPE_STATION) |
2342 BIT(NL80211_IFTYPE_AP) |
2343 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2344 BIT(NL80211_IFTYPE_P2P_GO) |
2345 BIT(NL80211_IFTYPE_ADHOC) |
2346 BIT(NL80211_IFTYPE_MESH_POINT) |
2347 BIT(NL80211_IFTYPE_P2P_DEVICE);
2348
2349 hw->flags = IEEE80211_HW_MFP_CAPABLE |
2350 IEEE80211_HW_SIGNAL_DBM |
2351 IEEE80211_HW_SUPPORTS_STATIC_SMPS |
2352 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
2353 IEEE80211_HW_AMPDU_AGGREGATION |
2354 IEEE80211_HW_WANT_MONITOR_VIF |
2355 IEEE80211_HW_QUEUE_CONTROL |
2356 IEEE80211_HW_SUPPORTS_HT_CCK_RATES;
2357 if (rctbl)
2358 hw->flags |= IEEE80211_HW_SUPPORTS_RC_TABLE;
2359
2360 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2361 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
2362 WIPHY_FLAG_AP_UAPSD;
2363 hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR;
2364
2365 /* ask mac80211 to reserve space for magic */
2366 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
2367 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
2368 hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
2369
2370 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
2371 sizeof(hwsim_channels_2ghz));
2372 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
2373 sizeof(hwsim_channels_5ghz));
2374 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
2375
2376 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
2377 struct ieee80211_supported_band *sband = &data->bands[band];
2378 switch (band) {
2379 case IEEE80211_BAND_2GHZ:
2380 sband->channels = data->channels_2ghz;
2381 sband->n_channels =
2382 ARRAY_SIZE(hwsim_channels_2ghz);
2383 sband->bitrates = data->rates;
2384 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
2385 break;
2386 case IEEE80211_BAND_5GHZ:
2387 sband->channels = data->channels_5ghz;
2388 sband->n_channels =
2389 ARRAY_SIZE(hwsim_channels_5ghz);
2390 sband->bitrates = data->rates + 4;
2391 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
2392 break;
2393 default:
2394 continue;
2395 }
2396
2397 sband->ht_cap.ht_supported = true;
2398 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
2399 IEEE80211_HT_CAP_GRN_FLD |
2400 IEEE80211_HT_CAP_SGI_40 |
2401 IEEE80211_HT_CAP_DSSSCCK40;
2402 sband->ht_cap.ampdu_factor = 0x3;
2403 sband->ht_cap.ampdu_density = 0x6;
2404 memset(&sband->ht_cap.mcs, 0,
2405 sizeof(sband->ht_cap.mcs));
2406 sband->ht_cap.mcs.rx_mask[0] = 0xff;
2407 sband->ht_cap.mcs.rx_mask[1] = 0xff;
2408 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2409
2410 hw->wiphy->bands[band] = sband;
2411
2412 sband->vht_cap.vht_supported = true;
2413 sband->vht_cap.cap =
2414 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
2415 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
2416 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ |
2417 IEEE80211_VHT_CAP_RXLDPC |
2418 IEEE80211_VHT_CAP_SHORT_GI_80 |
2419 IEEE80211_VHT_CAP_SHORT_GI_160 |
2420 IEEE80211_VHT_CAP_TXSTBC |
2421 IEEE80211_VHT_CAP_RXSTBC_1 |
2422 IEEE80211_VHT_CAP_RXSTBC_2 |
2423 IEEE80211_VHT_CAP_RXSTBC_3 |
2424 IEEE80211_VHT_CAP_RXSTBC_4 |
2425 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
2426 sband->vht_cap.vht_mcs.rx_mcs_map =
2427 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_8 << 0 |
2428 IEEE80211_VHT_MCS_SUPPORT_0_8 << 2 |
2429 IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
2430 IEEE80211_VHT_MCS_SUPPORT_0_8 << 6 |
2431 IEEE80211_VHT_MCS_SUPPORT_0_8 << 8 |
2432 IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
2433 IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
2434 IEEE80211_VHT_MCS_SUPPORT_0_8 << 14);
2435 sband->vht_cap.vht_mcs.tx_mcs_map =
2436 sband->vht_cap.vht_mcs.rx_mcs_map;
2437 }
2438 /* By default all radios are belonging to the first group */
2439 data->group = 1;
2440 mutex_init(&data->mutex);
2441
2442 /* Enable frame retransmissions for lossy channels */
2443 hw->max_rates = 4;
2444 hw->max_rate_tries = 11;
2445
2446 /* Work to be done prior to ieee80211_register_hw() */
2447 switch (regtest) {
2448 case HWSIM_REGTEST_DISABLED:
2449 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
2450 case HWSIM_REGTEST_DRIVER_REG_ALL:
2451 case HWSIM_REGTEST_DIFF_COUNTRY:
2452 /*
2453 * Nothing to be done for driver regulatory domain
2454 * hints prior to ieee80211_register_hw()
2455 */
2456 break;
2457 case HWSIM_REGTEST_WORLD_ROAM:
2458 if (i == 0) {
2459 hw->wiphy->regulatory_flags |=
2460 REGULATORY_CUSTOM_REG;
2461 wiphy_apply_custom_regulatory(hw->wiphy,
2462 &hwsim_world_regdom_custom_01);
2463 }
2464 break;
2465 case HWSIM_REGTEST_CUSTOM_WORLD:
2466 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
2467 wiphy_apply_custom_regulatory(hw->wiphy,
2468 &hwsim_world_regdom_custom_01);
2469 break;
2470 case HWSIM_REGTEST_CUSTOM_WORLD_2:
2471 if (i == 0) {
2472 hw->wiphy->regulatory_flags |=
2473 REGULATORY_CUSTOM_REG;
2474 wiphy_apply_custom_regulatory(hw->wiphy,
2475 &hwsim_world_regdom_custom_01);
2476 } else if (i == 1) {
2477 hw->wiphy->regulatory_flags |=
2478 REGULATORY_CUSTOM_REG;
2479 wiphy_apply_custom_regulatory(hw->wiphy,
2480 &hwsim_world_regdom_custom_02);
2481 }
2482 break;
2483 case HWSIM_REGTEST_STRICT_ALL:
2484 hw->wiphy->regulatory_flags |= REGULATORY_STRICT_REG;
2485 break;
2486 case HWSIM_REGTEST_STRICT_FOLLOW:
2487 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
2488 if (i == 0)
2489 hw->wiphy->regulatory_flags |=
2490 REGULATORY_STRICT_REG;
2491 break;
2492 case HWSIM_REGTEST_ALL:
2493 if (i == 0) {
2494 hw->wiphy->regulatory_flags |=
2495 REGULATORY_CUSTOM_REG;
2496 wiphy_apply_custom_regulatory(hw->wiphy,
2497 &hwsim_world_regdom_custom_01);
2498 } else if (i == 1) {
2499 hw->wiphy->regulatory_flags |=
2500 REGULATORY_CUSTOM_REG;
2501 wiphy_apply_custom_regulatory(hw->wiphy,
2502 &hwsim_world_regdom_custom_02);
2503 } else if (i == 4)
2504 hw->wiphy->regulatory_flags |=
2505 REGULATORY_STRICT_REG;
2506 break;
2507 default:
2508 break;
2509 }
2510
2511 /* give the regulatory workqueue a chance to run */
2512 if (regtest)
2513 schedule_timeout_interruptible(1);
2514 err = ieee80211_register_hw(hw);
2515 if (err < 0) {
2516 printk(KERN_DEBUG "mac80211_hwsim: "
2517 "ieee80211_register_hw failed (%d)\n", err);
2518 goto failed_hw;
2519 }
2520
2521 /* Work to be done after to ieee80211_register_hw() */
2522 switch (regtest) {
2523 case HWSIM_REGTEST_WORLD_ROAM:
2524 case HWSIM_REGTEST_DISABLED:
2525 break;
2526 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
2527 if (!i)
2528 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2529 break;
2530 case HWSIM_REGTEST_DRIVER_REG_ALL:
2531 case HWSIM_REGTEST_STRICT_ALL:
2532 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2533 break;
2534 case HWSIM_REGTEST_DIFF_COUNTRY:
2535 if (i < ARRAY_SIZE(hwsim_alpha2s))
2536 regulatory_hint(hw->wiphy, hwsim_alpha2s[i]);
2537 break;
2538 case HWSIM_REGTEST_CUSTOM_WORLD:
2539 case HWSIM_REGTEST_CUSTOM_WORLD_2:
2540 /*
2541 * Nothing to be done for custom world regulatory
2542 * domains after to ieee80211_register_hw
2543 */
2544 break;
2545 case HWSIM_REGTEST_STRICT_FOLLOW:
2546 if (i == 0)
2547 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2548 break;
2549 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
2550 if (i == 0)
2551 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2552 else if (i == 1)
2553 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
2554 break;
2555 case HWSIM_REGTEST_ALL:
2556 if (i == 2)
2557 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2558 else if (i == 3)
2559 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
2560 else if (i == 4)
2561 regulatory_hint(hw->wiphy, hwsim_alpha2s[2]);
2562 break;
2563 default:
2564 break;
2565 }
2566
2567 wiphy_debug(hw->wiphy, "hwaddr %pm registered\n",
2568 hw->wiphy->perm_addr);
2569
2570 data->debugfs = debugfs_create_dir("hwsim",
2571 hw->wiphy->debugfsdir);
2572 debugfs_create_file("ps", 0666, data->debugfs, data,
2573 &hwsim_fops_ps);
2574 debugfs_create_file("group", 0666, data->debugfs, data,
2575 &hwsim_fops_group);
2576 if (channels == 1)
2577 debugfs_create_file("dfs_simulate_radar", 0222,
2578 data->debugfs,
2579 data, &hwsim_simulate_radar);
2580
2581 tasklet_hrtimer_init(&data->beacon_timer,
2582 mac80211_hwsim_beacon,
2583 CLOCK_REALTIME, HRTIMER_MODE_ABS);
2584
2585 list_add_tail(&data->list, &hwsim_radios);
2586 }
2587
2588 hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
2589 if (hwsim_mon == NULL) {
2590 err = -ENOMEM;
2591 goto failed;
2592 }
2593
2594 rtnl_lock();
2595
2596 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
2597 if (err < 0)
2598 goto failed_mon;
2599
2600
2601 err = register_netdevice(hwsim_mon);
2602 if (err < 0)
2603 goto failed_mon;
2604
2605 rtnl_unlock();
2606
2607 err = hwsim_init_netlink();
2608 if (err < 0)
2609 goto failed_nl;
2610
2611 return 0;
2612
2613 failed_nl:
2614 printk(KERN_DEBUG "mac_80211_hwsim: failed initializing netlink\n");
2615 return err;
2616
2617 failed_mon:
2618 rtnl_unlock();
2619 free_netdev(hwsim_mon);
2620 mac80211_hwsim_free();
2621 return err;
2622
2623 failed_hw:
2624 device_unregister(data->dev);
2625 failed_drvdata:
2626 ieee80211_free_hw(hw);
2627 failed:
2628 mac80211_hwsim_free();
2629 failed_unregister_driver:
2630 platform_driver_unregister(&mac80211_hwsim_driver);
2631 return err;
2632 }
2633 module_init(init_mac80211_hwsim);
2634
2635 static void __exit exit_mac80211_hwsim(void)
2636 {
2637 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
2638
2639 hwsim_exit_netlink();
2640
2641 mac80211_hwsim_free();
2642 unregister_netdev(hwsim_mon);
2643 platform_driver_unregister(&mac80211_hwsim_driver);
2644 }
2645 module_exit(exit_mac80211_hwsim);
Linux kernel - Deliverables
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