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wireless:rtlwifi: replaced kmalloc+memcpy with kmemdup
[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/debugfs.h>
29 #include <linux/module.h>
30 #include <linux/ktime.h>
31 #include <net/genetlink.h>
32 #include "mac80211_hwsim.h"
33
34 #define WARN_QUEUE 100
35 #define MAX_QUEUE 200
36
37 MODULE_AUTHOR("Jouni Malinen");
38 MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
39 MODULE_LICENSE("GPL");
40
41 static u32 wmediumd_portid;
42
43 static int radios = 2;
44 module_param(radios, int, 0444);
45 MODULE_PARM_DESC(radios, "Number of simulated radios");
46
47 static int channels = 1;
48 module_param(channels, int, 0444);
49 MODULE_PARM_DESC(channels, "Number of concurrent channels");
50
51 static bool paged_rx = false;
52 module_param(paged_rx, bool, 0644);
53 MODULE_PARM_DESC(paged_rx, "Use paged SKBs for RX instead of linear ones");
54
55 /**
56 * enum hwsim_regtest - the type of regulatory tests we offer
57 *
58 * These are the different values you can use for the regtest
59 * module parameter. This is useful to help test world roaming
60 * and the driver regulatory_hint() call and combinations of these.
61 * If you want to do specific alpha2 regulatory domain tests simply
62 * use the userspace regulatory request as that will be respected as
63 * well without the need of this module parameter. This is designed
64 * only for testing the driver regulatory request, world roaming
65 * and all possible combinations.
66 *
67 * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
68 * this is the default value.
69 * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
70 * hint, only one driver regulatory hint will be sent as such the
71 * secondary radios are expected to follow.
72 * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
73 * request with all radios reporting the same regulatory domain.
74 * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
75 * different regulatory domains requests. Expected behaviour is for
76 * an intersection to occur but each device will still use their
77 * respective regulatory requested domains. Subsequent radios will
78 * use the resulting intersection.
79 * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We accomplish
80 * this by using a custom beacon-capable regulatory domain for the first
81 * radio. All other device world roam.
82 * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
83 * domain requests. All radios will adhere to this custom world regulatory
84 * domain.
85 * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
86 * domain requests. The first radio will adhere to the first custom world
87 * regulatory domain, the second one to the second custom world regulatory
88 * domain. All other devices will world roam.
89 * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain
90 * settings, only the first radio will send a regulatory domain request
91 * and use strict settings. The rest of the radios are expected to follow.
92 * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
93 * settings. All radios will adhere to this.
94 * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
95 * domain settings, combined with secondary driver regulatory domain
96 * settings. The first radio will get a strict regulatory domain setting
97 * using the first driver regulatory request and the second radio will use
98 * non-strict settings using the second driver regulatory request. All
99 * other devices should follow the intersection created between the
100 * first two.
101 * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
102 * at least 6 radios for a complete test. We will test in this order:
103 * 1 - driver custom world regulatory domain
104 * 2 - second custom world regulatory domain
105 * 3 - first driver regulatory domain request
106 * 4 - second driver regulatory domain request
107 * 5 - strict regulatory domain settings using the third driver regulatory
108 * domain request
109 * 6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
110 * regulatory requests.
111 */
112 enum hwsim_regtest {
113 HWSIM_REGTEST_DISABLED = 0,
114 HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1,
115 HWSIM_REGTEST_DRIVER_REG_ALL = 2,
116 HWSIM_REGTEST_DIFF_COUNTRY = 3,
117 HWSIM_REGTEST_WORLD_ROAM = 4,
118 HWSIM_REGTEST_CUSTOM_WORLD = 5,
119 HWSIM_REGTEST_CUSTOM_WORLD_2 = 6,
120 HWSIM_REGTEST_STRICT_FOLLOW = 7,
121 HWSIM_REGTEST_STRICT_ALL = 8,
122 HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9,
123 HWSIM_REGTEST_ALL = 10,
124 };
125
126 /* Set to one of the HWSIM_REGTEST_* values above */
127 static int regtest = HWSIM_REGTEST_DISABLED;
128 module_param(regtest, int, 0444);
129 MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run");
130
131 static const char *hwsim_alpha2s[] = {
132 "FI",
133 "AL",
134 "US",
135 "DE",
136 "JP",
137 "AL",
138 };
139
140 static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = {
141 .n_reg_rules = 4,
142 .alpha2 = "99",
143 .reg_rules = {
144 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
145 REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
146 REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
147 REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
148 }
149 };
150
151 static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = {
152 .n_reg_rules = 2,
153 .alpha2 = "99",
154 .reg_rules = {
155 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
156 REG_RULE(5725-10, 5850+10, 40, 0, 30,
157 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
158 }
159 };
160
161 struct hwsim_vif_priv {
162 u32 magic;
163 u8 bssid[ETH_ALEN];
164 bool assoc;
165 u16 aid;
166 };
167
168 #define HWSIM_VIF_MAGIC 0x69537748
169
170 static inline void hwsim_check_magic(struct ieee80211_vif *vif)
171 {
172 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
173 WARN(vp->magic != HWSIM_VIF_MAGIC,
174 "Invalid VIF (%p) magic %#x, %pM, %d/%d\n",
175 vif, vp->magic, vif->addr, vif->type, vif->p2p);
176 }
177
178 static inline void hwsim_set_magic(struct ieee80211_vif *vif)
179 {
180 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
181 vp->magic = HWSIM_VIF_MAGIC;
182 }
183
184 static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
185 {
186 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
187 vp->magic = 0;
188 }
189
190 struct hwsim_sta_priv {
191 u32 magic;
192 };
193
194 #define HWSIM_STA_MAGIC 0x6d537749
195
196 static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
197 {
198 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
199 WARN_ON(sp->magic != HWSIM_STA_MAGIC);
200 }
201
202 static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
203 {
204 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
205 sp->magic = HWSIM_STA_MAGIC;
206 }
207
208 static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
209 {
210 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
211 sp->magic = 0;
212 }
213
214 struct hwsim_chanctx_priv {
215 u32 magic;
216 };
217
218 #define HWSIM_CHANCTX_MAGIC 0x6d53774a
219
220 static inline void hwsim_check_chanctx_magic(struct ieee80211_chanctx_conf *c)
221 {
222 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
223 WARN_ON(cp->magic != HWSIM_CHANCTX_MAGIC);
224 }
225
226 static inline void hwsim_set_chanctx_magic(struct ieee80211_chanctx_conf *c)
227 {
228 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
229 cp->magic = HWSIM_CHANCTX_MAGIC;
230 }
231
232 static inline void hwsim_clear_chanctx_magic(struct ieee80211_chanctx_conf *c)
233 {
234 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
235 cp->magic = 0;
236 }
237
238 static struct class *hwsim_class;
239
240 static struct net_device *hwsim_mon; /* global monitor netdev */
241
242 #define CHAN2G(_freq) { \
243 .band = IEEE80211_BAND_2GHZ, \
244 .center_freq = (_freq), \
245 .hw_value = (_freq), \
246 .max_power = 20, \
247 }
248
249 #define CHAN5G(_freq) { \
250 .band = IEEE80211_BAND_5GHZ, \
251 .center_freq = (_freq), \
252 .hw_value = (_freq), \
253 .max_power = 20, \
254 }
255
256 static const struct ieee80211_channel hwsim_channels_2ghz[] = {
257 CHAN2G(2412), /* Channel 1 */
258 CHAN2G(2417), /* Channel 2 */
259 CHAN2G(2422), /* Channel 3 */
260 CHAN2G(2427), /* Channel 4 */
261 CHAN2G(2432), /* Channel 5 */
262 CHAN2G(2437), /* Channel 6 */
263 CHAN2G(2442), /* Channel 7 */
264 CHAN2G(2447), /* Channel 8 */
265 CHAN2G(2452), /* Channel 9 */
266 CHAN2G(2457), /* Channel 10 */
267 CHAN2G(2462), /* Channel 11 */
268 CHAN2G(2467), /* Channel 12 */
269 CHAN2G(2472), /* Channel 13 */
270 CHAN2G(2484), /* Channel 14 */
271 };
272
273 static const struct ieee80211_channel hwsim_channels_5ghz[] = {
274 CHAN5G(5180), /* Channel 36 */
275 CHAN5G(5200), /* Channel 40 */
276 CHAN5G(5220), /* Channel 44 */
277 CHAN5G(5240), /* Channel 48 */
278
279 CHAN5G(5260), /* Channel 52 */
280 CHAN5G(5280), /* Channel 56 */
281 CHAN5G(5300), /* Channel 60 */
282 CHAN5G(5320), /* Channel 64 */
283
284 CHAN5G(5500), /* Channel 100 */
285 CHAN5G(5520), /* Channel 104 */
286 CHAN5G(5540), /* Channel 108 */
287 CHAN5G(5560), /* Channel 112 */
288 CHAN5G(5580), /* Channel 116 */
289 CHAN5G(5600), /* Channel 120 */
290 CHAN5G(5620), /* Channel 124 */
291 CHAN5G(5640), /* Channel 128 */
292 CHAN5G(5660), /* Channel 132 */
293 CHAN5G(5680), /* Channel 136 */
294 CHAN5G(5700), /* Channel 140 */
295
296 CHAN5G(5745), /* Channel 149 */
297 CHAN5G(5765), /* Channel 153 */
298 CHAN5G(5785), /* Channel 157 */
299 CHAN5G(5805), /* Channel 161 */
300 CHAN5G(5825), /* Channel 165 */
301 };
302
303 static const struct ieee80211_rate hwsim_rates[] = {
304 { .bitrate = 10 },
305 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
306 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
307 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
308 { .bitrate = 60 },
309 { .bitrate = 90 },
310 { .bitrate = 120 },
311 { .bitrate = 180 },
312 { .bitrate = 240 },
313 { .bitrate = 360 },
314 { .bitrate = 480 },
315 { .bitrate = 540 }
316 };
317
318 static spinlock_t hwsim_radio_lock;
319 static struct list_head hwsim_radios;
320
321 struct mac80211_hwsim_data {
322 struct list_head list;
323 struct ieee80211_hw *hw;
324 struct device *dev;
325 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
326 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
327 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
328 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
329
330 struct mac_address addresses[2];
331
332 struct ieee80211_channel *tmp_chan;
333 struct delayed_work roc_done;
334 struct delayed_work hw_scan;
335 struct cfg80211_scan_request *hw_scan_request;
336 struct ieee80211_vif *hw_scan_vif;
337 int scan_chan_idx;
338
339 struct ieee80211_channel *channel;
340 u64 beacon_int /* beacon interval in us */;
341 unsigned int rx_filter;
342 bool started, idle, scanning;
343 struct mutex mutex;
344 struct tasklet_hrtimer beacon_timer;
345 enum ps_mode {
346 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
347 } ps;
348 bool ps_poll_pending;
349 struct dentry *debugfs;
350 struct dentry *debugfs_ps;
351
352 struct sk_buff_head pending; /* packets pending */
353 /*
354 * Only radios in the same group can communicate together (the
355 * channel has to match too). Each bit represents a group. A
356 * radio can be in more then one group.
357 */
358 u64 group;
359 struct dentry *debugfs_group;
360
361 int power_level;
362
363 /* difference between this hw's clock and the real clock, in usecs */
364 s64 tsf_offset;
365 s64 bcn_delta;
366 /* absolute beacon transmission time. Used to cover up "tx" delay. */
367 u64 abs_bcn_ts;
368 };
369
370
371 struct hwsim_radiotap_hdr {
372 struct ieee80211_radiotap_header hdr;
373 __le64 rt_tsft;
374 u8 rt_flags;
375 u8 rt_rate;
376 __le16 rt_channel;
377 __le16 rt_chbitmask;
378 } __packed;
379
380 /* MAC80211_HWSIM netlinf family */
381 static struct genl_family hwsim_genl_family = {
382 .id = GENL_ID_GENERATE,
383 .hdrsize = 0,
384 .name = "MAC80211_HWSIM",
385 .version = 1,
386 .maxattr = HWSIM_ATTR_MAX,
387 };
388
389 /* MAC80211_HWSIM netlink policy */
390
391 static struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
392 [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC,
393 .len = 6*sizeof(u8) },
394 [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC,
395 .len = 6*sizeof(u8) },
396 [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
397 .len = IEEE80211_MAX_DATA_LEN },
398 [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
399 [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
400 [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
401 [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC,
402 .len = IEEE80211_TX_MAX_RATES*sizeof(
403 struct hwsim_tx_rate)},
404 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
405 };
406
407 static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
408 struct net_device *dev)
409 {
410 /* TODO: allow packet injection */
411 dev_kfree_skb(skb);
412 return NETDEV_TX_OK;
413 }
414
415 static inline u64 mac80211_hwsim_get_tsf_raw(void)
416 {
417 return ktime_to_us(ktime_get_real());
418 }
419
420 static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
421 {
422 u64 now = mac80211_hwsim_get_tsf_raw();
423 return cpu_to_le64(now + data->tsf_offset);
424 }
425
426 static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
427 struct ieee80211_vif *vif)
428 {
429 struct mac80211_hwsim_data *data = hw->priv;
430 return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
431 }
432
433 static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
434 struct ieee80211_vif *vif, u64 tsf)
435 {
436 struct mac80211_hwsim_data *data = hw->priv;
437 u64 now = mac80211_hwsim_get_tsf(hw, vif);
438 u32 bcn_int = data->beacon_int;
439 s64 delta = tsf - now;
440
441 data->tsf_offset += delta;
442 /* adjust after beaconing with new timestamp at old TBTT */
443 data->bcn_delta = do_div(delta, bcn_int);
444 }
445
446 static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
447 struct sk_buff *tx_skb,
448 struct ieee80211_channel *chan)
449 {
450 struct mac80211_hwsim_data *data = hw->priv;
451 struct sk_buff *skb;
452 struct hwsim_radiotap_hdr *hdr;
453 u16 flags;
454 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
455 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
456
457 if (!netif_running(hwsim_mon))
458 return;
459
460 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
461 if (skb == NULL)
462 return;
463
464 hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
465 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
466 hdr->hdr.it_pad = 0;
467 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
468 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
469 (1 << IEEE80211_RADIOTAP_RATE) |
470 (1 << IEEE80211_RADIOTAP_TSFT) |
471 (1 << IEEE80211_RADIOTAP_CHANNEL));
472 hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
473 hdr->rt_flags = 0;
474 hdr->rt_rate = txrate->bitrate / 5;
475 hdr->rt_channel = cpu_to_le16(chan->center_freq);
476 flags = IEEE80211_CHAN_2GHZ;
477 if (txrate->flags & IEEE80211_RATE_ERP_G)
478 flags |= IEEE80211_CHAN_OFDM;
479 else
480 flags |= IEEE80211_CHAN_CCK;
481 hdr->rt_chbitmask = cpu_to_le16(flags);
482
483 skb->dev = hwsim_mon;
484 skb_set_mac_header(skb, 0);
485 skb->ip_summed = CHECKSUM_UNNECESSARY;
486 skb->pkt_type = PACKET_OTHERHOST;
487 skb->protocol = htons(ETH_P_802_2);
488 memset(skb->cb, 0, sizeof(skb->cb));
489 netif_rx(skb);
490 }
491
492
493 static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
494 const u8 *addr)
495 {
496 struct sk_buff *skb;
497 struct hwsim_radiotap_hdr *hdr;
498 u16 flags;
499 struct ieee80211_hdr *hdr11;
500
501 if (!netif_running(hwsim_mon))
502 return;
503
504 skb = dev_alloc_skb(100);
505 if (skb == NULL)
506 return;
507
508 hdr = (struct hwsim_radiotap_hdr *) skb_put(skb, sizeof(*hdr));
509 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
510 hdr->hdr.it_pad = 0;
511 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
512 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
513 (1 << IEEE80211_RADIOTAP_CHANNEL));
514 hdr->rt_flags = 0;
515 hdr->rt_rate = 0;
516 hdr->rt_channel = cpu_to_le16(chan->center_freq);
517 flags = IEEE80211_CHAN_2GHZ;
518 hdr->rt_chbitmask = cpu_to_le16(flags);
519
520 hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
521 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
522 IEEE80211_STYPE_ACK);
523 hdr11->duration_id = cpu_to_le16(0);
524 memcpy(hdr11->addr1, addr, ETH_ALEN);
525
526 skb->dev = hwsim_mon;
527 skb_set_mac_header(skb, 0);
528 skb->ip_summed = CHECKSUM_UNNECESSARY;
529 skb->pkt_type = PACKET_OTHERHOST;
530 skb->protocol = htons(ETH_P_802_2);
531 memset(skb->cb, 0, sizeof(skb->cb));
532 netif_rx(skb);
533 }
534
535
536 static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
537 struct sk_buff *skb)
538 {
539 switch (data->ps) {
540 case PS_DISABLED:
541 return true;
542 case PS_ENABLED:
543 return false;
544 case PS_AUTO_POLL:
545 /* TODO: accept (some) Beacons by default and other frames only
546 * if pending PS-Poll has been sent */
547 return true;
548 case PS_MANUAL_POLL:
549 /* Allow unicast frames to own address if there is a pending
550 * PS-Poll */
551 if (data->ps_poll_pending &&
552 memcmp(data->hw->wiphy->perm_addr, skb->data + 4,
553 ETH_ALEN) == 0) {
554 data->ps_poll_pending = false;
555 return true;
556 }
557 return false;
558 }
559
560 return true;
561 }
562
563
564 struct mac80211_hwsim_addr_match_data {
565 bool ret;
566 const u8 *addr;
567 };
568
569 static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
570 struct ieee80211_vif *vif)
571 {
572 struct mac80211_hwsim_addr_match_data *md = data;
573 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
574 md->ret = true;
575 }
576
577
578 static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
579 const u8 *addr)
580 {
581 struct mac80211_hwsim_addr_match_data md;
582
583 if (memcmp(addr, data->hw->wiphy->perm_addr, ETH_ALEN) == 0)
584 return true;
585
586 md.ret = false;
587 md.addr = addr;
588 ieee80211_iterate_active_interfaces_atomic(data->hw,
589 IEEE80211_IFACE_ITER_NORMAL,
590 mac80211_hwsim_addr_iter,
591 &md);
592
593 return md.ret;
594 }
595
596 static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
597 struct sk_buff *my_skb,
598 int dst_portid)
599 {
600 struct sk_buff *skb;
601 struct mac80211_hwsim_data *data = hw->priv;
602 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
603 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
604 void *msg_head;
605 unsigned int hwsim_flags = 0;
606 int i;
607 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
608
609 if (data->ps != PS_DISABLED)
610 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
611 /* If the queue contains MAX_QUEUE skb's drop some */
612 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
613 /* Droping until WARN_QUEUE level */
614 while (skb_queue_len(&data->pending) >= WARN_QUEUE)
615 skb_dequeue(&data->pending);
616 }
617
618 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
619 if (skb == NULL)
620 goto nla_put_failure;
621
622 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
623 HWSIM_CMD_FRAME);
624 if (msg_head == NULL) {
625 printk(KERN_DEBUG "mac80211_hwsim: problem with msg_head\n");
626 goto nla_put_failure;
627 }
628
629 if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
630 sizeof(struct mac_address), data->addresses[1].addr))
631 goto nla_put_failure;
632
633 /* We get the skb->data */
634 if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
635 goto nla_put_failure;
636
637 /* We get the flags for this transmission, and we translate them to
638 wmediumd flags */
639
640 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
641 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
642
643 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
644 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
645
646 if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
647 goto nla_put_failure;
648
649 /* We get the tx control (rate and retries) info*/
650
651 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
652 tx_attempts[i].idx = info->status.rates[i].idx;
653 tx_attempts[i].count = info->status.rates[i].count;
654 }
655
656 if (nla_put(skb, HWSIM_ATTR_TX_INFO,
657 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
658 tx_attempts))
659 goto nla_put_failure;
660
661 /* We create a cookie to identify this skb */
662 if (nla_put_u64(skb, HWSIM_ATTR_COOKIE, (unsigned long) my_skb))
663 goto nla_put_failure;
664
665 genlmsg_end(skb, msg_head);
666 genlmsg_unicast(&init_net, skb, dst_portid);
667
668 /* Enqueue the packet */
669 skb_queue_tail(&data->pending, my_skb);
670 return;
671
672 nla_put_failure:
673 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
674 }
675
676 static bool hwsim_chans_compat(struct ieee80211_channel *c1,
677 struct ieee80211_channel *c2)
678 {
679 if (!c1 || !c2)
680 return false;
681
682 return c1->center_freq == c2->center_freq;
683 }
684
685 struct tx_iter_data {
686 struct ieee80211_channel *channel;
687 bool receive;
688 };
689
690 static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
691 struct ieee80211_vif *vif)
692 {
693 struct tx_iter_data *data = _data;
694
695 if (!vif->chanctx_conf)
696 return;
697
698 if (!hwsim_chans_compat(data->channel,
699 rcu_dereference(vif->chanctx_conf)->def.chan))
700 return;
701
702 data->receive = true;
703 }
704
705 static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
706 struct sk_buff *skb,
707 struct ieee80211_channel *chan)
708 {
709 struct mac80211_hwsim_data *data = hw->priv, *data2;
710 bool ack = false;
711 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
712 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
713 struct ieee80211_rx_status rx_status;
714 u64 now;
715
716 memset(&rx_status, 0, sizeof(rx_status));
717 rx_status.flag |= RX_FLAG_MACTIME_START;
718 rx_status.freq = chan->center_freq;
719 rx_status.band = chan->band;
720 rx_status.rate_idx = info->control.rates[0].idx;
721 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
722 rx_status.flag |= RX_FLAG_HT;
723 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
724 rx_status.flag |= RX_FLAG_40MHZ;
725 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
726 rx_status.flag |= RX_FLAG_SHORT_GI;
727 /* TODO: simulate real signal strength (and optional packet loss) */
728 rx_status.signal = data->power_level - 50;
729
730 if (data->ps != PS_DISABLED)
731 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
732
733 /* release the skb's source info */
734 skb_orphan(skb);
735 skb_dst_drop(skb);
736 skb->mark = 0;
737 secpath_reset(skb);
738 nf_reset(skb);
739
740 /*
741 * Get absolute mactime here so all HWs RX at the "same time", and
742 * absolute TX time for beacon mactime so the timestamp matches.
743 * Giving beacons a different mactime than non-beacons looks messy, but
744 * it helps the Toffset be exact and a ~10us mactime discrepancy
745 * probably doesn't really matter.
746 */
747 if (ieee80211_is_beacon(hdr->frame_control) ||
748 ieee80211_is_probe_resp(hdr->frame_control))
749 now = data->abs_bcn_ts;
750 else
751 now = mac80211_hwsim_get_tsf_raw();
752
753 /* Copy skb to all enabled radios that are on the current frequency */
754 spin_lock(&hwsim_radio_lock);
755 list_for_each_entry(data2, &hwsim_radios, list) {
756 struct sk_buff *nskb;
757 struct tx_iter_data tx_iter_data = {
758 .receive = false,
759 .channel = chan,
760 };
761
762 if (data == data2)
763 continue;
764
765 if (!data2->started || (data2->idle && !data2->tmp_chan) ||
766 !hwsim_ps_rx_ok(data2, skb))
767 continue;
768
769 if (!(data->group & data2->group))
770 continue;
771
772 if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
773 !hwsim_chans_compat(chan, data2->channel)) {
774 ieee80211_iterate_active_interfaces_atomic(
775 data2->hw, IEEE80211_IFACE_ITER_NORMAL,
776 mac80211_hwsim_tx_iter, &tx_iter_data);
777 if (!tx_iter_data.receive)
778 continue;
779 }
780
781 /*
782 * reserve some space for our vendor and the normal
783 * radiotap header, since we're copying anyway
784 */
785 if (skb->len < PAGE_SIZE && paged_rx) {
786 struct page *page = alloc_page(GFP_ATOMIC);
787
788 if (!page)
789 continue;
790
791 nskb = dev_alloc_skb(128);
792 if (!nskb) {
793 __free_page(page);
794 continue;
795 }
796
797 memcpy(page_address(page), skb->data, skb->len);
798 skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
799 } else {
800 nskb = skb_copy(skb, GFP_ATOMIC);
801 if (!nskb)
802 continue;
803 }
804
805 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
806 ack = true;
807
808 rx_status.mactime = now + data2->tsf_offset;
809 #if 0
810 /*
811 * Don't enable this code by default as the OUI 00:00:00
812 * is registered to Xerox so we shouldn't use it here, it
813 * might find its way into pcap files.
814 * Note that this code requires the headroom in the SKB
815 * that was allocated earlier.
816 */
817 rx_status.vendor_radiotap_oui[0] = 0x00;
818 rx_status.vendor_radiotap_oui[1] = 0x00;
819 rx_status.vendor_radiotap_oui[2] = 0x00;
820 rx_status.vendor_radiotap_subns = 127;
821 /*
822 * Radiotap vendor namespaces can (and should) also be
823 * split into fields by using the standard radiotap
824 * presence bitmap mechanism. Use just BIT(0) here for
825 * the presence bitmap.
826 */
827 rx_status.vendor_radiotap_bitmap = BIT(0);
828 /* We have 8 bytes of (dummy) data */
829 rx_status.vendor_radiotap_len = 8;
830 /* For testing, also require it to be aligned */
831 rx_status.vendor_radiotap_align = 8;
832 /* push the data */
833 memcpy(skb_push(nskb, 8), "ABCDEFGH", 8);
834 #endif
835
836 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
837 ieee80211_rx_irqsafe(data2->hw, nskb);
838 }
839 spin_unlock(&hwsim_radio_lock);
840
841 return ack;
842 }
843
844 static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
845 struct ieee80211_tx_control *control,
846 struct sk_buff *skb)
847 {
848 struct mac80211_hwsim_data *data = hw->priv;
849 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
850 struct ieee80211_chanctx_conf *chanctx_conf;
851 struct ieee80211_channel *channel;
852 bool ack;
853 u32 _portid;
854
855 if (WARN_ON(skb->len < 10)) {
856 /* Should not happen; just a sanity check for addr1 use */
857 dev_kfree_skb(skb);
858 return;
859 }
860
861 if (channels == 1) {
862 channel = data->channel;
863 } else if (txi->hw_queue == 4) {
864 channel = data->tmp_chan;
865 } else {
866 chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf);
867 if (chanctx_conf)
868 channel = chanctx_conf->def.chan;
869 else
870 channel = NULL;
871 }
872
873 if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
874 dev_kfree_skb(skb);
875 return;
876 }
877
878 if (data->idle && !data->tmp_chan) {
879 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
880 dev_kfree_skb(skb);
881 return;
882 }
883
884 if (txi->control.vif)
885 hwsim_check_magic(txi->control.vif);
886 if (control->sta)
887 hwsim_check_sta_magic(control->sta);
888
889 txi->rate_driver_data[0] = channel;
890
891 mac80211_hwsim_monitor_rx(hw, skb, channel);
892
893 /* wmediumd mode check */
894 _portid = ACCESS_ONCE(wmediumd_portid);
895
896 if (_portid)
897 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
898
899 /* NO wmediumd detected, perfect medium simulation */
900 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
901
902 if (ack && skb->len >= 16) {
903 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
904 mac80211_hwsim_monitor_ack(channel, hdr->addr2);
905 }
906
907 ieee80211_tx_info_clear_status(txi);
908
909 /* frame was transmitted at most favorable rate at first attempt */
910 txi->control.rates[0].count = 1;
911 txi->control.rates[1].idx = -1;
912
913 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
914 txi->flags |= IEEE80211_TX_STAT_ACK;
915 ieee80211_tx_status_irqsafe(hw, skb);
916 }
917
918
919 static int mac80211_hwsim_start(struct ieee80211_hw *hw)
920 {
921 struct mac80211_hwsim_data *data = hw->priv;
922 wiphy_debug(hw->wiphy, "%s\n", __func__);
923 data->started = true;
924 return 0;
925 }
926
927
928 static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
929 {
930 struct mac80211_hwsim_data *data = hw->priv;
931 data->started = false;
932 tasklet_hrtimer_cancel(&data->beacon_timer);
933 wiphy_debug(hw->wiphy, "%s\n", __func__);
934 }
935
936
937 static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
938 struct ieee80211_vif *vif)
939 {
940 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
941 __func__, ieee80211_vif_type_p2p(vif),
942 vif->addr);
943 hwsim_set_magic(vif);
944
945 vif->cab_queue = 0;
946 vif->hw_queue[IEEE80211_AC_VO] = 0;
947 vif->hw_queue[IEEE80211_AC_VI] = 1;
948 vif->hw_queue[IEEE80211_AC_BE] = 2;
949 vif->hw_queue[IEEE80211_AC_BK] = 3;
950
951 return 0;
952 }
953
954
955 static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
956 struct ieee80211_vif *vif,
957 enum nl80211_iftype newtype,
958 bool newp2p)
959 {
960 newtype = ieee80211_iftype_p2p(newtype, newp2p);
961 wiphy_debug(hw->wiphy,
962 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
963 __func__, ieee80211_vif_type_p2p(vif),
964 newtype, vif->addr);
965 hwsim_check_magic(vif);
966
967 return 0;
968 }
969
970 static void mac80211_hwsim_remove_interface(
971 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
972 {
973 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
974 __func__, ieee80211_vif_type_p2p(vif),
975 vif->addr);
976 hwsim_check_magic(vif);
977 hwsim_clear_magic(vif);
978 }
979
980 static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
981 struct sk_buff *skb,
982 struct ieee80211_channel *chan)
983 {
984 u32 _pid = ACCESS_ONCE(wmediumd_portid);
985
986 mac80211_hwsim_monitor_rx(hw, skb, chan);
987
988 if (_pid)
989 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
990
991 mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
992 dev_kfree_skb(skb);
993 }
994
995 static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
996 struct ieee80211_vif *vif)
997 {
998 struct mac80211_hwsim_data *data = arg;
999 struct ieee80211_hw *hw = data->hw;
1000 struct ieee80211_tx_info *info;
1001 struct ieee80211_rate *txrate;
1002 struct ieee80211_mgmt *mgmt;
1003 struct sk_buff *skb;
1004
1005 hwsim_check_magic(vif);
1006
1007 if (vif->type != NL80211_IFTYPE_AP &&
1008 vif->type != NL80211_IFTYPE_MESH_POINT &&
1009 vif->type != NL80211_IFTYPE_ADHOC)
1010 return;
1011
1012 skb = ieee80211_beacon_get(hw, vif);
1013 if (skb == NULL)
1014 return;
1015 info = IEEE80211_SKB_CB(skb);
1016 txrate = ieee80211_get_tx_rate(hw, info);
1017
1018 mgmt = (struct ieee80211_mgmt *) skb->data;
1019 /* fake header transmission time */
1020 data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
1021 mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
1022 data->tsf_offset +
1023 24 * 8 * 10 / txrate->bitrate);
1024
1025 mac80211_hwsim_tx_frame(hw, skb,
1026 rcu_dereference(vif->chanctx_conf)->def.chan);
1027 }
1028
1029 static enum hrtimer_restart
1030 mac80211_hwsim_beacon(struct hrtimer *timer)
1031 {
1032 struct mac80211_hwsim_data *data =
1033 container_of(timer, struct mac80211_hwsim_data,
1034 beacon_timer.timer);
1035 struct ieee80211_hw *hw = data->hw;
1036 u64 bcn_int = data->beacon_int;
1037 ktime_t next_bcn;
1038
1039 if (!data->started)
1040 goto out;
1041
1042 ieee80211_iterate_active_interfaces_atomic(
1043 hw, IEEE80211_IFACE_ITER_NORMAL,
1044 mac80211_hwsim_beacon_tx, data);
1045
1046 /* beacon at new TBTT + beacon interval */
1047 if (data->bcn_delta) {
1048 bcn_int -= data->bcn_delta;
1049 data->bcn_delta = 0;
1050 }
1051
1052 next_bcn = ktime_add(hrtimer_get_expires(timer),
1053 ns_to_ktime(bcn_int * 1000));
1054 tasklet_hrtimer_start(&data->beacon_timer, next_bcn, HRTIMER_MODE_ABS);
1055 out:
1056 return HRTIMER_NORESTART;
1057 }
1058
1059 static const char *hwsim_chantypes[] = {
1060 [NL80211_CHAN_NO_HT] = "noht",
1061 [NL80211_CHAN_HT20] = "ht20",
1062 [NL80211_CHAN_HT40MINUS] = "ht40-",
1063 [NL80211_CHAN_HT40PLUS] = "ht40+",
1064 };
1065
1066 static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
1067 {
1068 struct mac80211_hwsim_data *data = hw->priv;
1069 struct ieee80211_conf *conf = &hw->conf;
1070 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
1071 [IEEE80211_SMPS_AUTOMATIC] = "auto",
1072 [IEEE80211_SMPS_OFF] = "off",
1073 [IEEE80211_SMPS_STATIC] = "static",
1074 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
1075 };
1076
1077 wiphy_debug(hw->wiphy,
1078 "%s (freq=%d/%s idle=%d ps=%d smps=%s)\n",
1079 __func__,
1080 conf->channel ? conf->channel->center_freq : 0,
1081 hwsim_chantypes[conf->channel_type],
1082 !!(conf->flags & IEEE80211_CONF_IDLE),
1083 !!(conf->flags & IEEE80211_CONF_PS),
1084 smps_modes[conf->smps_mode]);
1085
1086 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1087
1088 data->channel = conf->channel;
1089
1090 WARN_ON(data->channel && channels > 1);
1091
1092 data->power_level = conf->power_level;
1093 if (!data->started || !data->beacon_int)
1094 tasklet_hrtimer_cancel(&data->beacon_timer);
1095 else if (!hrtimer_is_queued(&data->beacon_timer.timer)) {
1096 u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
1097 u32 bcn_int = data->beacon_int;
1098 u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1099
1100 tasklet_hrtimer_start(&data->beacon_timer,
1101 ns_to_ktime(until_tbtt * 1000),
1102 HRTIMER_MODE_REL);
1103 }
1104
1105 return 0;
1106 }
1107
1108
1109 static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
1110 unsigned int changed_flags,
1111 unsigned int *total_flags,u64 multicast)
1112 {
1113 struct mac80211_hwsim_data *data = hw->priv;
1114
1115 wiphy_debug(hw->wiphy, "%s\n", __func__);
1116
1117 data->rx_filter = 0;
1118 if (*total_flags & FIF_PROMISC_IN_BSS)
1119 data->rx_filter |= FIF_PROMISC_IN_BSS;
1120 if (*total_flags & FIF_ALLMULTI)
1121 data->rx_filter |= FIF_ALLMULTI;
1122
1123 *total_flags = data->rx_filter;
1124 }
1125
1126 static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
1127 struct ieee80211_vif *vif,
1128 struct ieee80211_bss_conf *info,
1129 u32 changed)
1130 {
1131 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1132 struct mac80211_hwsim_data *data = hw->priv;
1133
1134 hwsim_check_magic(vif);
1135
1136 wiphy_debug(hw->wiphy, "%s(changed=0x%x)\n", __func__, changed);
1137
1138 if (changed & BSS_CHANGED_BSSID) {
1139 wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
1140 __func__, info->bssid);
1141 memcpy(vp->bssid, info->bssid, ETH_ALEN);
1142 }
1143
1144 if (changed & BSS_CHANGED_ASSOC) {
1145 wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
1146 info->assoc, info->aid);
1147 vp->assoc = info->assoc;
1148 vp->aid = info->aid;
1149 }
1150
1151 if (changed & BSS_CHANGED_BEACON_INT) {
1152 wiphy_debug(hw->wiphy, " BCNINT: %d\n", info->beacon_int);
1153 data->beacon_int = info->beacon_int * 1024;
1154 }
1155
1156 if (changed & BSS_CHANGED_BEACON_ENABLED) {
1157 wiphy_debug(hw->wiphy, " BCN EN: %d\n", info->enable_beacon);
1158 if (data->started &&
1159 !hrtimer_is_queued(&data->beacon_timer.timer) &&
1160 info->enable_beacon) {
1161 u64 tsf, until_tbtt;
1162 u32 bcn_int;
1163 if (WARN_ON(!data->beacon_int))
1164 data->beacon_int = 1000 * 1024;
1165 tsf = mac80211_hwsim_get_tsf(hw, vif);
1166 bcn_int = data->beacon_int;
1167 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1168 tasklet_hrtimer_start(&data->beacon_timer,
1169 ns_to_ktime(until_tbtt * 1000),
1170 HRTIMER_MODE_REL);
1171 } else if (!info->enable_beacon)
1172 tasklet_hrtimer_cancel(&data->beacon_timer);
1173 }
1174
1175 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
1176 wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
1177 info->use_cts_prot);
1178 }
1179
1180 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
1181 wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
1182 info->use_short_preamble);
1183 }
1184
1185 if (changed & BSS_CHANGED_ERP_SLOT) {
1186 wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
1187 }
1188
1189 if (changed & BSS_CHANGED_HT) {
1190 wiphy_debug(hw->wiphy, " HT: op_mode=0x%x\n",
1191 info->ht_operation_mode);
1192 }
1193
1194 if (changed & BSS_CHANGED_BASIC_RATES) {
1195 wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
1196 (unsigned long long) info->basic_rates);
1197 }
1198
1199 if (changed & BSS_CHANGED_TXPOWER)
1200 wiphy_debug(hw->wiphy, " TX Power: %d dBm\n", info->txpower);
1201 }
1202
1203 static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
1204 struct ieee80211_vif *vif,
1205 struct ieee80211_sta *sta)
1206 {
1207 hwsim_check_magic(vif);
1208 hwsim_set_sta_magic(sta);
1209
1210 return 0;
1211 }
1212
1213 static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
1214 struct ieee80211_vif *vif,
1215 struct ieee80211_sta *sta)
1216 {
1217 hwsim_check_magic(vif);
1218 hwsim_clear_sta_magic(sta);
1219
1220 return 0;
1221 }
1222
1223 static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
1224 struct ieee80211_vif *vif,
1225 enum sta_notify_cmd cmd,
1226 struct ieee80211_sta *sta)
1227 {
1228 hwsim_check_magic(vif);
1229
1230 switch (cmd) {
1231 case STA_NOTIFY_SLEEP:
1232 case STA_NOTIFY_AWAKE:
1233 /* TODO: make good use of these flags */
1234 break;
1235 default:
1236 WARN(1, "Invalid sta notify: %d\n", cmd);
1237 break;
1238 }
1239 }
1240
1241 static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
1242 struct ieee80211_sta *sta,
1243 bool set)
1244 {
1245 hwsim_check_sta_magic(sta);
1246 return 0;
1247 }
1248
1249 static int mac80211_hwsim_conf_tx(
1250 struct ieee80211_hw *hw,
1251 struct ieee80211_vif *vif, u16 queue,
1252 const struct ieee80211_tx_queue_params *params)
1253 {
1254 wiphy_debug(hw->wiphy,
1255 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1256 __func__, queue,
1257 params->txop, params->cw_min,
1258 params->cw_max, params->aifs);
1259 return 0;
1260 }
1261
1262 static int mac80211_hwsim_get_survey(
1263 struct ieee80211_hw *hw, int idx,
1264 struct survey_info *survey)
1265 {
1266 struct ieee80211_conf *conf = &hw->conf;
1267
1268 wiphy_debug(hw->wiphy, "%s (idx=%d)\n", __func__, idx);
1269
1270 if (idx != 0)
1271 return -ENOENT;
1272
1273 /* Current channel */
1274 survey->channel = conf->channel;
1275
1276 /*
1277 * Magically conjured noise level --- this is only ok for simulated hardware.
1278 *
1279 * A real driver which cannot determine the real channel noise MUST NOT
1280 * report any noise, especially not a magically conjured one :-)
1281 */
1282 survey->filled = SURVEY_INFO_NOISE_DBM;
1283 survey->noise = -92;
1284
1285 return 0;
1286 }
1287
1288 #ifdef CONFIG_NL80211_TESTMODE
1289 /*
1290 * This section contains example code for using netlink
1291 * attributes with the testmode command in nl80211.
1292 */
1293
1294 /* These enums need to be kept in sync with userspace */
1295 enum hwsim_testmode_attr {
1296 __HWSIM_TM_ATTR_INVALID = 0,
1297 HWSIM_TM_ATTR_CMD = 1,
1298 HWSIM_TM_ATTR_PS = 2,
1299
1300 /* keep last */
1301 __HWSIM_TM_ATTR_AFTER_LAST,
1302 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1303 };
1304
1305 enum hwsim_testmode_cmd {
1306 HWSIM_TM_CMD_SET_PS = 0,
1307 HWSIM_TM_CMD_GET_PS = 1,
1308 HWSIM_TM_CMD_STOP_QUEUES = 2,
1309 HWSIM_TM_CMD_WAKE_QUEUES = 3,
1310 };
1311
1312 static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1313 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1314 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1315 };
1316
1317 static int hwsim_fops_ps_write(void *dat, u64 val);
1318
1319 static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
1320 void *data, int len)
1321 {
1322 struct mac80211_hwsim_data *hwsim = hw->priv;
1323 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1324 struct sk_buff *skb;
1325 int err, ps;
1326
1327 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
1328 hwsim_testmode_policy);
1329 if (err)
1330 return err;
1331
1332 if (!tb[HWSIM_TM_ATTR_CMD])
1333 return -EINVAL;
1334
1335 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1336 case HWSIM_TM_CMD_SET_PS:
1337 if (!tb[HWSIM_TM_ATTR_PS])
1338 return -EINVAL;
1339 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1340 return hwsim_fops_ps_write(hwsim, ps);
1341 case HWSIM_TM_CMD_GET_PS:
1342 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1343 nla_total_size(sizeof(u32)));
1344 if (!skb)
1345 return -ENOMEM;
1346 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
1347 goto nla_put_failure;
1348 return cfg80211_testmode_reply(skb);
1349 case HWSIM_TM_CMD_STOP_QUEUES:
1350 ieee80211_stop_queues(hw);
1351 return 0;
1352 case HWSIM_TM_CMD_WAKE_QUEUES:
1353 ieee80211_wake_queues(hw);
1354 return 0;
1355 default:
1356 return -EOPNOTSUPP;
1357 }
1358
1359 nla_put_failure:
1360 kfree_skb(skb);
1361 return -ENOBUFS;
1362 }
1363 #endif
1364
1365 static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1366 struct ieee80211_vif *vif,
1367 enum ieee80211_ampdu_mlme_action action,
1368 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
1369 u8 buf_size)
1370 {
1371 switch (action) {
1372 case IEEE80211_AMPDU_TX_START:
1373 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1374 break;
1375 case IEEE80211_AMPDU_TX_STOP_CONT:
1376 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1377 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1378 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1379 break;
1380 case IEEE80211_AMPDU_TX_OPERATIONAL:
1381 break;
1382 case IEEE80211_AMPDU_RX_START:
1383 case IEEE80211_AMPDU_RX_STOP:
1384 break;
1385 default:
1386 return -EOPNOTSUPP;
1387 }
1388
1389 return 0;
1390 }
1391
1392 static void mac80211_hwsim_flush(struct ieee80211_hw *hw, bool drop)
1393 {
1394 /* Not implemented, queues only on kernel side */
1395 }
1396
1397 static void hw_scan_work(struct work_struct *work)
1398 {
1399 struct mac80211_hwsim_data *hwsim =
1400 container_of(work, struct mac80211_hwsim_data, hw_scan.work);
1401 struct cfg80211_scan_request *req = hwsim->hw_scan_request;
1402 int dwell, i;
1403
1404 mutex_lock(&hwsim->mutex);
1405 if (hwsim->scan_chan_idx >= req->n_channels) {
1406 wiphy_debug(hwsim->hw->wiphy, "hw scan complete\n");
1407 ieee80211_scan_completed(hwsim->hw, false);
1408 hwsim->hw_scan_request = NULL;
1409 hwsim->hw_scan_vif = NULL;
1410 hwsim->tmp_chan = NULL;
1411 mutex_unlock(&hwsim->mutex);
1412 return;
1413 }
1414
1415 wiphy_debug(hwsim->hw->wiphy, "hw scan %d MHz\n",
1416 req->channels[hwsim->scan_chan_idx]->center_freq);
1417
1418 hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
1419 if (hwsim->tmp_chan->flags & IEEE80211_CHAN_PASSIVE_SCAN ||
1420 !req->n_ssids) {
1421 dwell = 120;
1422 } else {
1423 dwell = 30;
1424 /* send probes */
1425 for (i = 0; i < req->n_ssids; i++) {
1426 struct sk_buff *probe;
1427
1428 probe = ieee80211_probereq_get(hwsim->hw,
1429 hwsim->hw_scan_vif,
1430 req->ssids[i].ssid,
1431 req->ssids[i].ssid_len,
1432 req->ie_len);
1433 if (!probe)
1434 continue;
1435
1436 if (req->ie_len)
1437 memcpy(skb_put(probe, req->ie_len), req->ie,
1438 req->ie_len);
1439
1440 local_bh_disable();
1441 mac80211_hwsim_tx_frame(hwsim->hw, probe,
1442 hwsim->tmp_chan);
1443 local_bh_enable();
1444 }
1445 }
1446 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
1447 msecs_to_jiffies(dwell));
1448 hwsim->scan_chan_idx++;
1449 mutex_unlock(&hwsim->mutex);
1450 }
1451
1452 static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
1453 struct ieee80211_vif *vif,
1454 struct cfg80211_scan_request *req)
1455 {
1456 struct mac80211_hwsim_data *hwsim = hw->priv;
1457
1458 mutex_lock(&hwsim->mutex);
1459 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1460 mutex_unlock(&hwsim->mutex);
1461 return -EBUSY;
1462 }
1463 hwsim->hw_scan_request = req;
1464 hwsim->hw_scan_vif = vif;
1465 hwsim->scan_chan_idx = 0;
1466 mutex_unlock(&hwsim->mutex);
1467
1468 wiphy_debug(hw->wiphy, "hwsim hw_scan request\n");
1469
1470 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
1471
1472 return 0;
1473 }
1474
1475 static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
1476 struct ieee80211_vif *vif)
1477 {
1478 struct mac80211_hwsim_data *hwsim = hw->priv;
1479
1480 wiphy_debug(hw->wiphy, "hwsim cancel_hw_scan\n");
1481
1482 cancel_delayed_work_sync(&hwsim->hw_scan);
1483
1484 mutex_lock(&hwsim->mutex);
1485 ieee80211_scan_completed(hwsim->hw, true);
1486 hwsim->tmp_chan = NULL;
1487 hwsim->hw_scan_request = NULL;
1488 hwsim->hw_scan_vif = NULL;
1489 mutex_unlock(&hwsim->mutex);
1490 }
1491
1492 static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw)
1493 {
1494 struct mac80211_hwsim_data *hwsim = hw->priv;
1495
1496 mutex_lock(&hwsim->mutex);
1497
1498 if (hwsim->scanning) {
1499 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
1500 goto out;
1501 }
1502
1503 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
1504 hwsim->scanning = true;
1505
1506 out:
1507 mutex_unlock(&hwsim->mutex);
1508 }
1509
1510 static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw)
1511 {
1512 struct mac80211_hwsim_data *hwsim = hw->priv;
1513
1514 mutex_lock(&hwsim->mutex);
1515
1516 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
1517 hwsim->scanning = false;
1518
1519 mutex_unlock(&hwsim->mutex);
1520 }
1521
1522 static void hw_roc_done(struct work_struct *work)
1523 {
1524 struct mac80211_hwsim_data *hwsim =
1525 container_of(work, struct mac80211_hwsim_data, roc_done.work);
1526
1527 mutex_lock(&hwsim->mutex);
1528 ieee80211_remain_on_channel_expired(hwsim->hw);
1529 hwsim->tmp_chan = NULL;
1530 mutex_unlock(&hwsim->mutex);
1531
1532 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC expired\n");
1533 }
1534
1535 static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
1536 struct ieee80211_vif *vif,
1537 struct ieee80211_channel *chan,
1538 int duration,
1539 enum ieee80211_roc_type type)
1540 {
1541 struct mac80211_hwsim_data *hwsim = hw->priv;
1542
1543 mutex_lock(&hwsim->mutex);
1544 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1545 mutex_unlock(&hwsim->mutex);
1546 return -EBUSY;
1547 }
1548
1549 hwsim->tmp_chan = chan;
1550 mutex_unlock(&hwsim->mutex);
1551
1552 wiphy_debug(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
1553 chan->center_freq, duration);
1554
1555 ieee80211_ready_on_channel(hw);
1556
1557 ieee80211_queue_delayed_work(hw, &hwsim->roc_done,
1558 msecs_to_jiffies(duration));
1559 return 0;
1560 }
1561
1562 static int mac80211_hwsim_croc(struct ieee80211_hw *hw)
1563 {
1564 struct mac80211_hwsim_data *hwsim = hw->priv;
1565
1566 cancel_delayed_work_sync(&hwsim->roc_done);
1567
1568 mutex_lock(&hwsim->mutex);
1569 hwsim->tmp_chan = NULL;
1570 mutex_unlock(&hwsim->mutex);
1571
1572 wiphy_debug(hw->wiphy, "hwsim ROC canceled\n");
1573
1574 return 0;
1575 }
1576
1577 static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
1578 struct ieee80211_chanctx_conf *ctx)
1579 {
1580 hwsim_set_chanctx_magic(ctx);
1581 wiphy_debug(hw->wiphy,
1582 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1583 ctx->def.chan->center_freq, ctx->def.width,
1584 ctx->def.center_freq1, ctx->def.center_freq2);
1585 return 0;
1586 }
1587
1588 static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
1589 struct ieee80211_chanctx_conf *ctx)
1590 {
1591 wiphy_debug(hw->wiphy,
1592 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1593 ctx->def.chan->center_freq, ctx->def.width,
1594 ctx->def.center_freq1, ctx->def.center_freq2);
1595 hwsim_check_chanctx_magic(ctx);
1596 hwsim_clear_chanctx_magic(ctx);
1597 }
1598
1599 static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
1600 struct ieee80211_chanctx_conf *ctx,
1601 u32 changed)
1602 {
1603 hwsim_check_chanctx_magic(ctx);
1604 wiphy_debug(hw->wiphy,
1605 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1606 ctx->def.chan->center_freq, ctx->def.width,
1607 ctx->def.center_freq1, ctx->def.center_freq2);
1608 }
1609
1610 static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
1611 struct ieee80211_vif *vif,
1612 struct ieee80211_chanctx_conf *ctx)
1613 {
1614 hwsim_check_magic(vif);
1615 hwsim_check_chanctx_magic(ctx);
1616
1617 return 0;
1618 }
1619
1620 static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
1621 struct ieee80211_vif *vif,
1622 struct ieee80211_chanctx_conf *ctx)
1623 {
1624 hwsim_check_magic(vif);
1625 hwsim_check_chanctx_magic(ctx);
1626 }
1627
1628 static struct ieee80211_ops mac80211_hwsim_ops =
1629 {
1630 .tx = mac80211_hwsim_tx,
1631 .start = mac80211_hwsim_start,
1632 .stop = mac80211_hwsim_stop,
1633 .add_interface = mac80211_hwsim_add_interface,
1634 .change_interface = mac80211_hwsim_change_interface,
1635 .remove_interface = mac80211_hwsim_remove_interface,
1636 .config = mac80211_hwsim_config,
1637 .configure_filter = mac80211_hwsim_configure_filter,
1638 .bss_info_changed = mac80211_hwsim_bss_info_changed,
1639 .sta_add = mac80211_hwsim_sta_add,
1640 .sta_remove = mac80211_hwsim_sta_remove,
1641 .sta_notify = mac80211_hwsim_sta_notify,
1642 .set_tim = mac80211_hwsim_set_tim,
1643 .conf_tx = mac80211_hwsim_conf_tx,
1644 .get_survey = mac80211_hwsim_get_survey,
1645 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
1646 .ampdu_action = mac80211_hwsim_ampdu_action,
1647 .sw_scan_start = mac80211_hwsim_sw_scan,
1648 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
1649 .flush = mac80211_hwsim_flush,
1650 .get_tsf = mac80211_hwsim_get_tsf,
1651 .set_tsf = mac80211_hwsim_set_tsf,
1652 };
1653
1654
1655 static void mac80211_hwsim_free(void)
1656 {
1657 struct list_head tmplist, *i, *tmp;
1658 struct mac80211_hwsim_data *data, *tmpdata;
1659
1660 INIT_LIST_HEAD(&tmplist);
1661
1662 spin_lock_bh(&hwsim_radio_lock);
1663 list_for_each_safe(i, tmp, &hwsim_radios)
1664 list_move(i, &tmplist);
1665 spin_unlock_bh(&hwsim_radio_lock);
1666
1667 list_for_each_entry_safe(data, tmpdata, &tmplist, list) {
1668 debugfs_remove(data->debugfs_group);
1669 debugfs_remove(data->debugfs_ps);
1670 debugfs_remove(data->debugfs);
1671 ieee80211_unregister_hw(data->hw);
1672 device_unregister(data->dev);
1673 ieee80211_free_hw(data->hw);
1674 }
1675 class_destroy(hwsim_class);
1676 }
1677
1678
1679 static struct device_driver mac80211_hwsim_driver = {
1680 .name = "mac80211_hwsim"
1681 };
1682
1683 static const struct net_device_ops hwsim_netdev_ops = {
1684 .ndo_start_xmit = hwsim_mon_xmit,
1685 .ndo_change_mtu = eth_change_mtu,
1686 .ndo_set_mac_address = eth_mac_addr,
1687 .ndo_validate_addr = eth_validate_addr,
1688 };
1689
1690 static void hwsim_mon_setup(struct net_device *dev)
1691 {
1692 dev->netdev_ops = &hwsim_netdev_ops;
1693 dev->destructor = free_netdev;
1694 ether_setup(dev);
1695 dev->tx_queue_len = 0;
1696 dev->type = ARPHRD_IEEE80211_RADIOTAP;
1697 memset(dev->dev_addr, 0, ETH_ALEN);
1698 dev->dev_addr[0] = 0x12;
1699 }
1700
1701
1702 static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
1703 {
1704 struct mac80211_hwsim_data *data = dat;
1705 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1706 struct sk_buff *skb;
1707 struct ieee80211_pspoll *pspoll;
1708
1709 if (!vp->assoc)
1710 return;
1711
1712 wiphy_debug(data->hw->wiphy,
1713 "%s: send PS-Poll to %pM for aid %d\n",
1714 __func__, vp->bssid, vp->aid);
1715
1716 skb = dev_alloc_skb(sizeof(*pspoll));
1717 if (!skb)
1718 return;
1719 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
1720 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
1721 IEEE80211_STYPE_PSPOLL |
1722 IEEE80211_FCTL_PM);
1723 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
1724 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
1725 memcpy(pspoll->ta, mac, ETH_ALEN);
1726
1727 rcu_read_lock();
1728 mac80211_hwsim_tx_frame(data->hw, skb,
1729 rcu_dereference(vif->chanctx_conf)->def.chan);
1730 rcu_read_unlock();
1731 }
1732
1733 static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
1734 struct ieee80211_vif *vif, int ps)
1735 {
1736 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1737 struct sk_buff *skb;
1738 struct ieee80211_hdr *hdr;
1739
1740 if (!vp->assoc)
1741 return;
1742
1743 wiphy_debug(data->hw->wiphy,
1744 "%s: send data::nullfunc to %pM ps=%d\n",
1745 __func__, vp->bssid, ps);
1746
1747 skb = dev_alloc_skb(sizeof(*hdr));
1748 if (!skb)
1749 return;
1750 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
1751 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1752 IEEE80211_STYPE_NULLFUNC |
1753 (ps ? IEEE80211_FCTL_PM : 0));
1754 hdr->duration_id = cpu_to_le16(0);
1755 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
1756 memcpy(hdr->addr2, mac, ETH_ALEN);
1757 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
1758
1759 rcu_read_lock();
1760 mac80211_hwsim_tx_frame(data->hw, skb,
1761 rcu_dereference(vif->chanctx_conf)->def.chan);
1762 rcu_read_unlock();
1763 }
1764
1765
1766 static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
1767 struct ieee80211_vif *vif)
1768 {
1769 struct mac80211_hwsim_data *data = dat;
1770 hwsim_send_nullfunc(data, mac, vif, 1);
1771 }
1772
1773
1774 static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
1775 struct ieee80211_vif *vif)
1776 {
1777 struct mac80211_hwsim_data *data = dat;
1778 hwsim_send_nullfunc(data, mac, vif, 0);
1779 }
1780
1781
1782 static int hwsim_fops_ps_read(void *dat, u64 *val)
1783 {
1784 struct mac80211_hwsim_data *data = dat;
1785 *val = data->ps;
1786 return 0;
1787 }
1788
1789 static int hwsim_fops_ps_write(void *dat, u64 val)
1790 {
1791 struct mac80211_hwsim_data *data = dat;
1792 enum ps_mode old_ps;
1793
1794 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
1795 val != PS_MANUAL_POLL)
1796 return -EINVAL;
1797
1798 old_ps = data->ps;
1799 data->ps = val;
1800
1801 if (val == PS_MANUAL_POLL) {
1802 ieee80211_iterate_active_interfaces(data->hw,
1803 IEEE80211_IFACE_ITER_NORMAL,
1804 hwsim_send_ps_poll, data);
1805 data->ps_poll_pending = true;
1806 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
1807 ieee80211_iterate_active_interfaces(data->hw,
1808 IEEE80211_IFACE_ITER_NORMAL,
1809 hwsim_send_nullfunc_ps,
1810 data);
1811 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
1812 ieee80211_iterate_active_interfaces(data->hw,
1813 IEEE80211_IFACE_ITER_NORMAL,
1814 hwsim_send_nullfunc_no_ps,
1815 data);
1816 }
1817
1818 return 0;
1819 }
1820
1821 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
1822 "%llu\n");
1823
1824
1825 static int hwsim_fops_group_read(void *dat, u64 *val)
1826 {
1827 struct mac80211_hwsim_data *data = dat;
1828 *val = data->group;
1829 return 0;
1830 }
1831
1832 static int hwsim_fops_group_write(void *dat, u64 val)
1833 {
1834 struct mac80211_hwsim_data *data = dat;
1835 data->group = val;
1836 return 0;
1837 }
1838
1839 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
1840 hwsim_fops_group_read, hwsim_fops_group_write,
1841 "%llx\n");
1842
1843 static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(
1844 struct mac_address *addr)
1845 {
1846 struct mac80211_hwsim_data *data;
1847 bool _found = false;
1848
1849 spin_lock_bh(&hwsim_radio_lock);
1850 list_for_each_entry(data, &hwsim_radios, list) {
1851 if (memcmp(data->addresses[1].addr, addr,
1852 sizeof(struct mac_address)) == 0) {
1853 _found = true;
1854 break;
1855 }
1856 }
1857 spin_unlock_bh(&hwsim_radio_lock);
1858
1859 if (!_found)
1860 return NULL;
1861
1862 return data;
1863 }
1864
1865 static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
1866 struct genl_info *info)
1867 {
1868
1869 struct ieee80211_hdr *hdr;
1870 struct mac80211_hwsim_data *data2;
1871 struct ieee80211_tx_info *txi;
1872 struct hwsim_tx_rate *tx_attempts;
1873 unsigned long ret_skb_ptr;
1874 struct sk_buff *skb, *tmp;
1875 struct mac_address *src;
1876 unsigned int hwsim_flags;
1877
1878 int i;
1879 bool found = false;
1880
1881 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
1882 !info->attrs[HWSIM_ATTR_FLAGS] ||
1883 !info->attrs[HWSIM_ATTR_COOKIE] ||
1884 !info->attrs[HWSIM_ATTR_TX_INFO])
1885 goto out;
1886
1887 src = (struct mac_address *)nla_data(
1888 info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
1889 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
1890
1891 ret_skb_ptr = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
1892
1893 data2 = get_hwsim_data_ref_from_addr(src);
1894
1895 if (data2 == NULL)
1896 goto out;
1897
1898 /* look for the skb matching the cookie passed back from user */
1899 skb_queue_walk_safe(&data2->pending, skb, tmp) {
1900 if ((unsigned long)skb == ret_skb_ptr) {
1901 skb_unlink(skb, &data2->pending);
1902 found = true;
1903 break;
1904 }
1905 }
1906
1907 /* not found */
1908 if (!found)
1909 goto out;
1910
1911 /* Tx info received because the frame was broadcasted on user space,
1912 so we get all the necessary info: tx attempts and skb control buff */
1913
1914 tx_attempts = (struct hwsim_tx_rate *)nla_data(
1915 info->attrs[HWSIM_ATTR_TX_INFO]);
1916
1917 /* now send back TX status */
1918 txi = IEEE80211_SKB_CB(skb);
1919
1920 ieee80211_tx_info_clear_status(txi);
1921
1922 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
1923 txi->status.rates[i].idx = tx_attempts[i].idx;
1924 txi->status.rates[i].count = tx_attempts[i].count;
1925 /*txi->status.rates[i].flags = 0;*/
1926 }
1927
1928 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
1929
1930 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
1931 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
1932 if (skb->len >= 16) {
1933 hdr = (struct ieee80211_hdr *) skb->data;
1934 mac80211_hwsim_monitor_ack(txi->rate_driver_data[0],
1935 hdr->addr2);
1936 }
1937 txi->flags |= IEEE80211_TX_STAT_ACK;
1938 }
1939 ieee80211_tx_status_irqsafe(data2->hw, skb);
1940 return 0;
1941 out:
1942 return -EINVAL;
1943
1944 }
1945
1946 static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
1947 struct genl_info *info)
1948 {
1949
1950 struct mac80211_hwsim_data *data2;
1951 struct ieee80211_rx_status rx_status;
1952 struct mac_address *dst;
1953 int frame_data_len;
1954 char *frame_data;
1955 struct sk_buff *skb = NULL;
1956
1957 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
1958 !info->attrs[HWSIM_ATTR_FRAME] ||
1959 !info->attrs[HWSIM_ATTR_RX_RATE] ||
1960 !info->attrs[HWSIM_ATTR_SIGNAL])
1961 goto out;
1962
1963 dst = (struct mac_address *)nla_data(
1964 info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
1965
1966 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
1967 frame_data = (char *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
1968
1969 /* Allocate new skb here */
1970 skb = alloc_skb(frame_data_len, GFP_KERNEL);
1971 if (skb == NULL)
1972 goto err;
1973
1974 if (frame_data_len <= IEEE80211_MAX_DATA_LEN) {
1975 /* Copy the data */
1976 memcpy(skb_put(skb, frame_data_len), frame_data,
1977 frame_data_len);
1978 } else
1979 goto err;
1980
1981 data2 = get_hwsim_data_ref_from_addr(dst);
1982
1983 if (data2 == NULL)
1984 goto out;
1985
1986 /* check if radio is configured properly */
1987
1988 if (data2->idle || !data2->started)
1989 goto out;
1990
1991 /*A frame is received from user space*/
1992 memset(&rx_status, 0, sizeof(rx_status));
1993 rx_status.freq = data2->channel->center_freq;
1994 rx_status.band = data2->channel->band;
1995 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
1996 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
1997
1998 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
1999 ieee80211_rx_irqsafe(data2->hw, skb);
2000
2001 return 0;
2002 err:
2003 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
2004 goto out;
2005 out:
2006 dev_kfree_skb(skb);
2007 return -EINVAL;
2008 }
2009
2010 static int hwsim_register_received_nl(struct sk_buff *skb_2,
2011 struct genl_info *info)
2012 {
2013 if (info == NULL)
2014 goto out;
2015
2016 wmediumd_portid = info->snd_portid;
2017
2018 printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
2019 "switching to wmediumd mode with pid %d\n", info->snd_portid);
2020
2021 return 0;
2022 out:
2023 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
2024 return -EINVAL;
2025 }
2026
2027 /* Generic Netlink operations array */
2028 static struct genl_ops hwsim_ops[] = {
2029 {
2030 .cmd = HWSIM_CMD_REGISTER,
2031 .policy = hwsim_genl_policy,
2032 .doit = hwsim_register_received_nl,
2033 .flags = GENL_ADMIN_PERM,
2034 },
2035 {
2036 .cmd = HWSIM_CMD_FRAME,
2037 .policy = hwsim_genl_policy,
2038 .doit = hwsim_cloned_frame_received_nl,
2039 },
2040 {
2041 .cmd = HWSIM_CMD_TX_INFO_FRAME,
2042 .policy = hwsim_genl_policy,
2043 .doit = hwsim_tx_info_frame_received_nl,
2044 },
2045 };
2046
2047 static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
2048 unsigned long state,
2049 void *_notify)
2050 {
2051 struct netlink_notify *notify = _notify;
2052
2053 if (state != NETLINK_URELEASE)
2054 return NOTIFY_DONE;
2055
2056 if (notify->portid == wmediumd_portid) {
2057 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
2058 " socket, switching to perfect channel medium\n");
2059 wmediumd_portid = 0;
2060 }
2061 return NOTIFY_DONE;
2062
2063 }
2064
2065 static struct notifier_block hwsim_netlink_notifier = {
2066 .notifier_call = mac80211_hwsim_netlink_notify,
2067 };
2068
2069 static int hwsim_init_netlink(void)
2070 {
2071 int rc;
2072
2073 /* userspace test API hasn't been adjusted for multi-channel */
2074 if (channels > 1)
2075 return 0;
2076
2077 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
2078
2079 rc = genl_register_family_with_ops(&hwsim_genl_family,
2080 hwsim_ops, ARRAY_SIZE(hwsim_ops));
2081 if (rc)
2082 goto failure;
2083
2084 rc = netlink_register_notifier(&hwsim_netlink_notifier);
2085 if (rc)
2086 goto failure;
2087
2088 return 0;
2089
2090 failure:
2091 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
2092 return -EINVAL;
2093 }
2094
2095 static void hwsim_exit_netlink(void)
2096 {
2097 int ret;
2098
2099 /* userspace test API hasn't been adjusted for multi-channel */
2100 if (channels > 1)
2101 return;
2102
2103 printk(KERN_INFO "mac80211_hwsim: closing netlink\n");
2104 /* unregister the notifier */
2105 netlink_unregister_notifier(&hwsim_netlink_notifier);
2106 /* unregister the family */
2107 ret = genl_unregister_family(&hwsim_genl_family);
2108 if (ret)
2109 printk(KERN_DEBUG "mac80211_hwsim: "
2110 "unregister family %i\n", ret);
2111 }
2112
2113 static const struct ieee80211_iface_limit hwsim_if_limits[] = {
2114 { .max = 1, .types = BIT(NL80211_IFTYPE_ADHOC) },
2115 { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) |
2116 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2117 #ifdef CONFIG_MAC80211_MESH
2118 BIT(NL80211_IFTYPE_MESH_POINT) |
2119 #endif
2120 BIT(NL80211_IFTYPE_AP) |
2121 BIT(NL80211_IFTYPE_P2P_GO) },
2122 { .max = 1, .types = BIT(NL80211_IFTYPE_P2P_DEVICE) },
2123 };
2124
2125 static struct ieee80211_iface_combination hwsim_if_comb = {
2126 .limits = hwsim_if_limits,
2127 .n_limits = ARRAY_SIZE(hwsim_if_limits),
2128 .max_interfaces = 2048,
2129 .num_different_channels = 1,
2130 };
2131
2132 static int __init init_mac80211_hwsim(void)
2133 {
2134 int i, err = 0;
2135 u8 addr[ETH_ALEN];
2136 struct mac80211_hwsim_data *data;
2137 struct ieee80211_hw *hw;
2138 enum ieee80211_band band;
2139
2140 if (radios < 1 || radios > 100)
2141 return -EINVAL;
2142
2143 if (channels < 1)
2144 return -EINVAL;
2145
2146 if (channels > 1) {
2147 hwsim_if_comb.num_different_channels = channels;
2148 mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan;
2149 mac80211_hwsim_ops.cancel_hw_scan =
2150 mac80211_hwsim_cancel_hw_scan;
2151 mac80211_hwsim_ops.sw_scan_start = NULL;
2152 mac80211_hwsim_ops.sw_scan_complete = NULL;
2153 mac80211_hwsim_ops.remain_on_channel =
2154 mac80211_hwsim_roc;
2155 mac80211_hwsim_ops.cancel_remain_on_channel =
2156 mac80211_hwsim_croc;
2157 mac80211_hwsim_ops.add_chanctx =
2158 mac80211_hwsim_add_chanctx;
2159 mac80211_hwsim_ops.remove_chanctx =
2160 mac80211_hwsim_remove_chanctx;
2161 mac80211_hwsim_ops.change_chanctx =
2162 mac80211_hwsim_change_chanctx;
2163 mac80211_hwsim_ops.assign_vif_chanctx =
2164 mac80211_hwsim_assign_vif_chanctx;
2165 mac80211_hwsim_ops.unassign_vif_chanctx =
2166 mac80211_hwsim_unassign_vif_chanctx;
2167 }
2168
2169 spin_lock_init(&hwsim_radio_lock);
2170 INIT_LIST_HEAD(&hwsim_radios);
2171
2172 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
2173 if (IS_ERR(hwsim_class))
2174 return PTR_ERR(hwsim_class);
2175
2176 memset(addr, 0, ETH_ALEN);
2177 addr[0] = 0x02;
2178
2179 for (i = 0; i < radios; i++) {
2180 printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
2181 i);
2182 hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);
2183 if (!hw) {
2184 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
2185 "failed\n");
2186 err = -ENOMEM;
2187 goto failed;
2188 }
2189 data = hw->priv;
2190 data->hw = hw;
2191
2192 data->dev = device_create(hwsim_class, NULL, 0, hw,
2193 "hwsim%d", i);
2194 if (IS_ERR(data->dev)) {
2195 printk(KERN_DEBUG
2196 "mac80211_hwsim: device_create "
2197 "failed (%ld)\n", PTR_ERR(data->dev));
2198 err = -ENOMEM;
2199 goto failed_drvdata;
2200 }
2201 data->dev->driver = &mac80211_hwsim_driver;
2202 skb_queue_head_init(&data->pending);
2203
2204 SET_IEEE80211_DEV(hw, data->dev);
2205 addr[3] = i >> 8;
2206 addr[4] = i;
2207 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
2208 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
2209 data->addresses[1].addr[0] |= 0x40;
2210 hw->wiphy->n_addresses = 2;
2211 hw->wiphy->addresses = data->addresses;
2212
2213 hw->wiphy->iface_combinations = &hwsim_if_comb;
2214 hw->wiphy->n_iface_combinations = 1;
2215
2216 if (channels > 1) {
2217 hw->wiphy->max_scan_ssids = 255;
2218 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
2219 hw->wiphy->max_remain_on_channel_duration = 1000;
2220 }
2221
2222 INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
2223 INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
2224
2225 hw->channel_change_time = 1;
2226 hw->queues = 5;
2227 hw->offchannel_tx_hw_queue = 4;
2228 hw->wiphy->interface_modes =
2229 BIT(NL80211_IFTYPE_STATION) |
2230 BIT(NL80211_IFTYPE_AP) |
2231 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2232 BIT(NL80211_IFTYPE_P2P_GO) |
2233 BIT(NL80211_IFTYPE_ADHOC) |
2234 BIT(NL80211_IFTYPE_MESH_POINT) |
2235 BIT(NL80211_IFTYPE_P2P_DEVICE);
2236
2237 hw->flags = IEEE80211_HW_MFP_CAPABLE |
2238 IEEE80211_HW_SIGNAL_DBM |
2239 IEEE80211_HW_SUPPORTS_STATIC_SMPS |
2240 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
2241 IEEE80211_HW_AMPDU_AGGREGATION |
2242 IEEE80211_HW_WANT_MONITOR_VIF |
2243 IEEE80211_HW_QUEUE_CONTROL;
2244
2245 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2246 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
2247
2248 /* ask mac80211 to reserve space for magic */
2249 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
2250 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
2251 hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
2252
2253 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
2254 sizeof(hwsim_channels_2ghz));
2255 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
2256 sizeof(hwsim_channels_5ghz));
2257 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
2258
2259 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
2260 struct ieee80211_supported_band *sband = &data->bands[band];
2261 switch (band) {
2262 case IEEE80211_BAND_2GHZ:
2263 sband->channels = data->channels_2ghz;
2264 sband->n_channels =
2265 ARRAY_SIZE(hwsim_channels_2ghz);
2266 sband->bitrates = data->rates;
2267 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
2268 break;
2269 case IEEE80211_BAND_5GHZ:
2270 sband->channels = data->channels_5ghz;
2271 sband->n_channels =
2272 ARRAY_SIZE(hwsim_channels_5ghz);
2273 sband->bitrates = data->rates + 4;
2274 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
2275 break;
2276 default:
2277 continue;
2278 }
2279
2280 sband->ht_cap.ht_supported = true;
2281 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
2282 IEEE80211_HT_CAP_GRN_FLD |
2283 IEEE80211_HT_CAP_SGI_40 |
2284 IEEE80211_HT_CAP_DSSSCCK40;
2285 sband->ht_cap.ampdu_factor = 0x3;
2286 sband->ht_cap.ampdu_density = 0x6;
2287 memset(&sband->ht_cap.mcs, 0,
2288 sizeof(sband->ht_cap.mcs));
2289 sband->ht_cap.mcs.rx_mask[0] = 0xff;
2290 sband->ht_cap.mcs.rx_mask[1] = 0xff;
2291 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2292
2293 hw->wiphy->bands[band] = sband;
2294
2295 if (channels == 1)
2296 continue;
2297
2298 sband->vht_cap.vht_supported = true;
2299 sband->vht_cap.cap =
2300 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
2301 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
2302 IEEE80211_VHT_CAP_RXLDPC |
2303 IEEE80211_VHT_CAP_SHORT_GI_80 |
2304 IEEE80211_VHT_CAP_SHORT_GI_160 |
2305 IEEE80211_VHT_CAP_TXSTBC |
2306 IEEE80211_VHT_CAP_RXSTBC_1 |
2307 IEEE80211_VHT_CAP_RXSTBC_2 |
2308 IEEE80211_VHT_CAP_RXSTBC_3 |
2309 IEEE80211_VHT_CAP_RXSTBC_4 |
2310 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
2311 sband->vht_cap.vht_mcs.rx_mcs_map =
2312 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_8 << 0 |
2313 IEEE80211_VHT_MCS_SUPPORT_0_8 << 2 |
2314 IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
2315 IEEE80211_VHT_MCS_SUPPORT_0_8 << 6 |
2316 IEEE80211_VHT_MCS_SUPPORT_0_8 << 8 |
2317 IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
2318 IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
2319 IEEE80211_VHT_MCS_SUPPORT_0_8 << 14);
2320 sband->vht_cap.vht_mcs.tx_mcs_map =
2321 sband->vht_cap.vht_mcs.rx_mcs_map;
2322 }
2323 /* By default all radios are belonging to the first group */
2324 data->group = 1;
2325 mutex_init(&data->mutex);
2326
2327 /* Enable frame retransmissions for lossy channels */
2328 hw->max_rates = 4;
2329 hw->max_rate_tries = 11;
2330
2331 /* Work to be done prior to ieee80211_register_hw() */
2332 switch (regtest) {
2333 case HWSIM_REGTEST_DISABLED:
2334 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
2335 case HWSIM_REGTEST_DRIVER_REG_ALL:
2336 case HWSIM_REGTEST_DIFF_COUNTRY:
2337 /*
2338 * Nothing to be done for driver regulatory domain
2339 * hints prior to ieee80211_register_hw()
2340 */
2341 break;
2342 case HWSIM_REGTEST_WORLD_ROAM:
2343 if (i == 0) {
2344 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
2345 wiphy_apply_custom_regulatory(hw->wiphy,
2346 &hwsim_world_regdom_custom_01);
2347 }
2348 break;
2349 case HWSIM_REGTEST_CUSTOM_WORLD:
2350 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
2351 wiphy_apply_custom_regulatory(hw->wiphy,
2352 &hwsim_world_regdom_custom_01);
2353 break;
2354 case HWSIM_REGTEST_CUSTOM_WORLD_2:
2355 if (i == 0) {
2356 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
2357 wiphy_apply_custom_regulatory(hw->wiphy,
2358 &hwsim_world_regdom_custom_01);
2359 } else if (i == 1) {
2360 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
2361 wiphy_apply_custom_regulatory(hw->wiphy,
2362 &hwsim_world_regdom_custom_02);
2363 }
2364 break;
2365 case HWSIM_REGTEST_STRICT_ALL:
2366 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
2367 break;
2368 case HWSIM_REGTEST_STRICT_FOLLOW:
2369 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
2370 if (i == 0)
2371 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
2372 break;
2373 case HWSIM_REGTEST_ALL:
2374 if (i == 0) {
2375 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
2376 wiphy_apply_custom_regulatory(hw->wiphy,
2377 &hwsim_world_regdom_custom_01);
2378 } else if (i == 1) {
2379 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
2380 wiphy_apply_custom_regulatory(hw->wiphy,
2381 &hwsim_world_regdom_custom_02);
2382 } else if (i == 4)
2383 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
2384 break;
2385 default:
2386 break;
2387 }
2388
2389 /* give the regulatory workqueue a chance to run */
2390 if (regtest)
2391 schedule_timeout_interruptible(1);
2392 err = ieee80211_register_hw(hw);
2393 if (err < 0) {
2394 printk(KERN_DEBUG "mac80211_hwsim: "
2395 "ieee80211_register_hw failed (%d)\n", err);
2396 goto failed_hw;
2397 }
2398
2399 /* Work to be done after to ieee80211_register_hw() */
2400 switch (regtest) {
2401 case HWSIM_REGTEST_WORLD_ROAM:
2402 case HWSIM_REGTEST_DISABLED:
2403 break;
2404 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
2405 if (!i)
2406 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2407 break;
2408 case HWSIM_REGTEST_DRIVER_REG_ALL:
2409 case HWSIM_REGTEST_STRICT_ALL:
2410 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2411 break;
2412 case HWSIM_REGTEST_DIFF_COUNTRY:
2413 if (i < ARRAY_SIZE(hwsim_alpha2s))
2414 regulatory_hint(hw->wiphy, hwsim_alpha2s[i]);
2415 break;
2416 case HWSIM_REGTEST_CUSTOM_WORLD:
2417 case HWSIM_REGTEST_CUSTOM_WORLD_2:
2418 /*
2419 * Nothing to be done for custom world regulatory
2420 * domains after to ieee80211_register_hw
2421 */
2422 break;
2423 case HWSIM_REGTEST_STRICT_FOLLOW:
2424 if (i == 0)
2425 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2426 break;
2427 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
2428 if (i == 0)
2429 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2430 else if (i == 1)
2431 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
2432 break;
2433 case HWSIM_REGTEST_ALL:
2434 if (i == 2)
2435 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2436 else if (i == 3)
2437 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
2438 else if (i == 4)
2439 regulatory_hint(hw->wiphy, hwsim_alpha2s[2]);
2440 break;
2441 default:
2442 break;
2443 }
2444
2445 wiphy_debug(hw->wiphy, "hwaddr %pm registered\n",
2446 hw->wiphy->perm_addr);
2447
2448 data->debugfs = debugfs_create_dir("hwsim",
2449 hw->wiphy->debugfsdir);
2450 data->debugfs_ps = debugfs_create_file("ps", 0666,
2451 data->debugfs, data,
2452 &hwsim_fops_ps);
2453 data->debugfs_group = debugfs_create_file("group", 0666,
2454 data->debugfs, data,
2455 &hwsim_fops_group);
2456
2457 tasklet_hrtimer_init(&data->beacon_timer,
2458 mac80211_hwsim_beacon,
2459 CLOCK_REALTIME, HRTIMER_MODE_ABS);
2460
2461 list_add_tail(&data->list, &hwsim_radios);
2462 }
2463
2464 hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
2465 if (hwsim_mon == NULL)
2466 goto failed;
2467
2468 rtnl_lock();
2469
2470 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
2471 if (err < 0)
2472 goto failed_mon;
2473
2474
2475 err = register_netdevice(hwsim_mon);
2476 if (err < 0)
2477 goto failed_mon;
2478
2479 rtnl_unlock();
2480
2481 err = hwsim_init_netlink();
2482 if (err < 0)
2483 goto failed_nl;
2484
2485 return 0;
2486
2487 failed_nl:
2488 printk(KERN_DEBUG "mac_80211_hwsim: failed initializing netlink\n");
2489 return err;
2490
2491 failed_mon:
2492 rtnl_unlock();
2493 free_netdev(hwsim_mon);
2494 mac80211_hwsim_free();
2495 return err;
2496
2497 failed_hw:
2498 device_unregister(data->dev);
2499 failed_drvdata:
2500 ieee80211_free_hw(hw);
2501 failed:
2502 mac80211_hwsim_free();
2503 return err;
2504 }
2505 module_init(init_mac80211_hwsim);
2506
2507 static void __exit exit_mac80211_hwsim(void)
2508 {
2509 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
2510
2511 hwsim_exit_netlink();
2512
2513 mac80211_hwsim_free();
2514 unregister_netdev(hwsim_mon);
2515 }
2516 module_exit(exit_mac80211_hwsim);
Linux kernel - Deliverables
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