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brcmfmac: add optional bus callback definition for tx queue cleanup
[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 /*
968 * interface may change from non-AP to AP in
969 * which case this needs to be set up again
970 */
971 vif->cab_queue = 0;
972
973 return 0;
974 }
975
976 static void mac80211_hwsim_remove_interface(
977 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
978 {
979 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
980 __func__, ieee80211_vif_type_p2p(vif),
981 vif->addr);
982 hwsim_check_magic(vif);
983 hwsim_clear_magic(vif);
984 }
985
986 static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
987 struct sk_buff *skb,
988 struct ieee80211_channel *chan)
989 {
990 u32 _pid = ACCESS_ONCE(wmediumd_portid);
991
992 mac80211_hwsim_monitor_rx(hw, skb, chan);
993
994 if (_pid)
995 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
996
997 mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
998 dev_kfree_skb(skb);
999 }
1000
1001 static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
1002 struct ieee80211_vif *vif)
1003 {
1004 struct mac80211_hwsim_data *data = arg;
1005 struct ieee80211_hw *hw = data->hw;
1006 struct ieee80211_tx_info *info;
1007 struct ieee80211_rate *txrate;
1008 struct ieee80211_mgmt *mgmt;
1009 struct sk_buff *skb;
1010
1011 hwsim_check_magic(vif);
1012
1013 if (vif->type != NL80211_IFTYPE_AP &&
1014 vif->type != NL80211_IFTYPE_MESH_POINT &&
1015 vif->type != NL80211_IFTYPE_ADHOC)
1016 return;
1017
1018 skb = ieee80211_beacon_get(hw, vif);
1019 if (skb == NULL)
1020 return;
1021 info = IEEE80211_SKB_CB(skb);
1022 txrate = ieee80211_get_tx_rate(hw, info);
1023
1024 mgmt = (struct ieee80211_mgmt *) skb->data;
1025 /* fake header transmission time */
1026 data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
1027 mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
1028 data->tsf_offset +
1029 24 * 8 * 10 / txrate->bitrate);
1030
1031 mac80211_hwsim_tx_frame(hw, skb,
1032 rcu_dereference(vif->chanctx_conf)->def.chan);
1033 }
1034
1035 static enum hrtimer_restart
1036 mac80211_hwsim_beacon(struct hrtimer *timer)
1037 {
1038 struct mac80211_hwsim_data *data =
1039 container_of(timer, struct mac80211_hwsim_data,
1040 beacon_timer.timer);
1041 struct ieee80211_hw *hw = data->hw;
1042 u64 bcn_int = data->beacon_int;
1043 ktime_t next_bcn;
1044
1045 if (!data->started)
1046 goto out;
1047
1048 ieee80211_iterate_active_interfaces_atomic(
1049 hw, IEEE80211_IFACE_ITER_NORMAL,
1050 mac80211_hwsim_beacon_tx, data);
1051
1052 /* beacon at new TBTT + beacon interval */
1053 if (data->bcn_delta) {
1054 bcn_int -= data->bcn_delta;
1055 data->bcn_delta = 0;
1056 }
1057
1058 next_bcn = ktime_add(hrtimer_get_expires(timer),
1059 ns_to_ktime(bcn_int * 1000));
1060 tasklet_hrtimer_start(&data->beacon_timer, next_bcn, HRTIMER_MODE_ABS);
1061 out:
1062 return HRTIMER_NORESTART;
1063 }
1064
1065 static const char *hwsim_chantypes[] = {
1066 [NL80211_CHAN_NO_HT] = "noht",
1067 [NL80211_CHAN_HT20] = "ht20",
1068 [NL80211_CHAN_HT40MINUS] = "ht40-",
1069 [NL80211_CHAN_HT40PLUS] = "ht40+",
1070 };
1071
1072 static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
1073 {
1074 struct mac80211_hwsim_data *data = hw->priv;
1075 struct ieee80211_conf *conf = &hw->conf;
1076 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
1077 [IEEE80211_SMPS_AUTOMATIC] = "auto",
1078 [IEEE80211_SMPS_OFF] = "off",
1079 [IEEE80211_SMPS_STATIC] = "static",
1080 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
1081 };
1082
1083 wiphy_debug(hw->wiphy,
1084 "%s (freq=%d/%s idle=%d ps=%d smps=%s)\n",
1085 __func__,
1086 conf->channel ? conf->channel->center_freq : 0,
1087 hwsim_chantypes[conf->channel_type],
1088 !!(conf->flags & IEEE80211_CONF_IDLE),
1089 !!(conf->flags & IEEE80211_CONF_PS),
1090 smps_modes[conf->smps_mode]);
1091
1092 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1093
1094 data->channel = conf->channel;
1095
1096 WARN_ON(data->channel && channels > 1);
1097
1098 data->power_level = conf->power_level;
1099 if (!data->started || !data->beacon_int)
1100 tasklet_hrtimer_cancel(&data->beacon_timer);
1101 else if (!hrtimer_is_queued(&data->beacon_timer.timer)) {
1102 u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
1103 u32 bcn_int = data->beacon_int;
1104 u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1105
1106 tasklet_hrtimer_start(&data->beacon_timer,
1107 ns_to_ktime(until_tbtt * 1000),
1108 HRTIMER_MODE_REL);
1109 }
1110
1111 return 0;
1112 }
1113
1114
1115 static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
1116 unsigned int changed_flags,
1117 unsigned int *total_flags,u64 multicast)
1118 {
1119 struct mac80211_hwsim_data *data = hw->priv;
1120
1121 wiphy_debug(hw->wiphy, "%s\n", __func__);
1122
1123 data->rx_filter = 0;
1124 if (*total_flags & FIF_PROMISC_IN_BSS)
1125 data->rx_filter |= FIF_PROMISC_IN_BSS;
1126 if (*total_flags & FIF_ALLMULTI)
1127 data->rx_filter |= FIF_ALLMULTI;
1128
1129 *total_flags = data->rx_filter;
1130 }
1131
1132 static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
1133 struct ieee80211_vif *vif,
1134 struct ieee80211_bss_conf *info,
1135 u32 changed)
1136 {
1137 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1138 struct mac80211_hwsim_data *data = hw->priv;
1139
1140 hwsim_check_magic(vif);
1141
1142 wiphy_debug(hw->wiphy, "%s(changed=0x%x)\n", __func__, changed);
1143
1144 if (changed & BSS_CHANGED_BSSID) {
1145 wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
1146 __func__, info->bssid);
1147 memcpy(vp->bssid, info->bssid, ETH_ALEN);
1148 }
1149
1150 if (changed & BSS_CHANGED_ASSOC) {
1151 wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
1152 info->assoc, info->aid);
1153 vp->assoc = info->assoc;
1154 vp->aid = info->aid;
1155 }
1156
1157 if (changed & BSS_CHANGED_BEACON_INT) {
1158 wiphy_debug(hw->wiphy, " BCNINT: %d\n", info->beacon_int);
1159 data->beacon_int = info->beacon_int * 1024;
1160 }
1161
1162 if (changed & BSS_CHANGED_BEACON_ENABLED) {
1163 wiphy_debug(hw->wiphy, " BCN EN: %d\n", info->enable_beacon);
1164 if (data->started &&
1165 !hrtimer_is_queued(&data->beacon_timer.timer) &&
1166 info->enable_beacon) {
1167 u64 tsf, until_tbtt;
1168 u32 bcn_int;
1169 if (WARN_ON(!data->beacon_int))
1170 data->beacon_int = 1000 * 1024;
1171 tsf = mac80211_hwsim_get_tsf(hw, vif);
1172 bcn_int = data->beacon_int;
1173 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1174 tasklet_hrtimer_start(&data->beacon_timer,
1175 ns_to_ktime(until_tbtt * 1000),
1176 HRTIMER_MODE_REL);
1177 } else if (!info->enable_beacon)
1178 tasklet_hrtimer_cancel(&data->beacon_timer);
1179 }
1180
1181 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
1182 wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
1183 info->use_cts_prot);
1184 }
1185
1186 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
1187 wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
1188 info->use_short_preamble);
1189 }
1190
1191 if (changed & BSS_CHANGED_ERP_SLOT) {
1192 wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
1193 }
1194
1195 if (changed & BSS_CHANGED_HT) {
1196 wiphy_debug(hw->wiphy, " HT: op_mode=0x%x\n",
1197 info->ht_operation_mode);
1198 }
1199
1200 if (changed & BSS_CHANGED_BASIC_RATES) {
1201 wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
1202 (unsigned long long) info->basic_rates);
1203 }
1204
1205 if (changed & BSS_CHANGED_TXPOWER)
1206 wiphy_debug(hw->wiphy, " TX Power: %d dBm\n", info->txpower);
1207 }
1208
1209 static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
1210 struct ieee80211_vif *vif,
1211 struct ieee80211_sta *sta)
1212 {
1213 hwsim_check_magic(vif);
1214 hwsim_set_sta_magic(sta);
1215
1216 return 0;
1217 }
1218
1219 static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
1220 struct ieee80211_vif *vif,
1221 struct ieee80211_sta *sta)
1222 {
1223 hwsim_check_magic(vif);
1224 hwsim_clear_sta_magic(sta);
1225
1226 return 0;
1227 }
1228
1229 static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
1230 struct ieee80211_vif *vif,
1231 enum sta_notify_cmd cmd,
1232 struct ieee80211_sta *sta)
1233 {
1234 hwsim_check_magic(vif);
1235
1236 switch (cmd) {
1237 case STA_NOTIFY_SLEEP:
1238 case STA_NOTIFY_AWAKE:
1239 /* TODO: make good use of these flags */
1240 break;
1241 default:
1242 WARN(1, "Invalid sta notify: %d\n", cmd);
1243 break;
1244 }
1245 }
1246
1247 static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
1248 struct ieee80211_sta *sta,
1249 bool set)
1250 {
1251 hwsim_check_sta_magic(sta);
1252 return 0;
1253 }
1254
1255 static int mac80211_hwsim_conf_tx(
1256 struct ieee80211_hw *hw,
1257 struct ieee80211_vif *vif, u16 queue,
1258 const struct ieee80211_tx_queue_params *params)
1259 {
1260 wiphy_debug(hw->wiphy,
1261 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1262 __func__, queue,
1263 params->txop, params->cw_min,
1264 params->cw_max, params->aifs);
1265 return 0;
1266 }
1267
1268 static int mac80211_hwsim_get_survey(
1269 struct ieee80211_hw *hw, int idx,
1270 struct survey_info *survey)
1271 {
1272 struct ieee80211_conf *conf = &hw->conf;
1273
1274 wiphy_debug(hw->wiphy, "%s (idx=%d)\n", __func__, idx);
1275
1276 if (idx != 0)
1277 return -ENOENT;
1278
1279 /* Current channel */
1280 survey->channel = conf->channel;
1281
1282 /*
1283 * Magically conjured noise level --- this is only ok for simulated hardware.
1284 *
1285 * A real driver which cannot determine the real channel noise MUST NOT
1286 * report any noise, especially not a magically conjured one :-)
1287 */
1288 survey->filled = SURVEY_INFO_NOISE_DBM;
1289 survey->noise = -92;
1290
1291 return 0;
1292 }
1293
1294 #ifdef CONFIG_NL80211_TESTMODE
1295 /*
1296 * This section contains example code for using netlink
1297 * attributes with the testmode command in nl80211.
1298 */
1299
1300 /* These enums need to be kept in sync with userspace */
1301 enum hwsim_testmode_attr {
1302 __HWSIM_TM_ATTR_INVALID = 0,
1303 HWSIM_TM_ATTR_CMD = 1,
1304 HWSIM_TM_ATTR_PS = 2,
1305
1306 /* keep last */
1307 __HWSIM_TM_ATTR_AFTER_LAST,
1308 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1309 };
1310
1311 enum hwsim_testmode_cmd {
1312 HWSIM_TM_CMD_SET_PS = 0,
1313 HWSIM_TM_CMD_GET_PS = 1,
1314 HWSIM_TM_CMD_STOP_QUEUES = 2,
1315 HWSIM_TM_CMD_WAKE_QUEUES = 3,
1316 };
1317
1318 static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1319 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1320 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1321 };
1322
1323 static int hwsim_fops_ps_write(void *dat, u64 val);
1324
1325 static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
1326 void *data, int len)
1327 {
1328 struct mac80211_hwsim_data *hwsim = hw->priv;
1329 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1330 struct sk_buff *skb;
1331 int err, ps;
1332
1333 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
1334 hwsim_testmode_policy);
1335 if (err)
1336 return err;
1337
1338 if (!tb[HWSIM_TM_ATTR_CMD])
1339 return -EINVAL;
1340
1341 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1342 case HWSIM_TM_CMD_SET_PS:
1343 if (!tb[HWSIM_TM_ATTR_PS])
1344 return -EINVAL;
1345 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1346 return hwsim_fops_ps_write(hwsim, ps);
1347 case HWSIM_TM_CMD_GET_PS:
1348 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1349 nla_total_size(sizeof(u32)));
1350 if (!skb)
1351 return -ENOMEM;
1352 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
1353 goto nla_put_failure;
1354 return cfg80211_testmode_reply(skb);
1355 case HWSIM_TM_CMD_STOP_QUEUES:
1356 ieee80211_stop_queues(hw);
1357 return 0;
1358 case HWSIM_TM_CMD_WAKE_QUEUES:
1359 ieee80211_wake_queues(hw);
1360 return 0;
1361 default:
1362 return -EOPNOTSUPP;
1363 }
1364
1365 nla_put_failure:
1366 kfree_skb(skb);
1367 return -ENOBUFS;
1368 }
1369 #endif
1370
1371 static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1372 struct ieee80211_vif *vif,
1373 enum ieee80211_ampdu_mlme_action action,
1374 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
1375 u8 buf_size)
1376 {
1377 switch (action) {
1378 case IEEE80211_AMPDU_TX_START:
1379 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1380 break;
1381 case IEEE80211_AMPDU_TX_STOP_CONT:
1382 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1383 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1384 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1385 break;
1386 case IEEE80211_AMPDU_TX_OPERATIONAL:
1387 break;
1388 case IEEE80211_AMPDU_RX_START:
1389 case IEEE80211_AMPDU_RX_STOP:
1390 break;
1391 default:
1392 return -EOPNOTSUPP;
1393 }
1394
1395 return 0;
1396 }
1397
1398 static void mac80211_hwsim_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
1399 {
1400 /* Not implemented, queues only on kernel side */
1401 }
1402
1403 static void hw_scan_work(struct work_struct *work)
1404 {
1405 struct mac80211_hwsim_data *hwsim =
1406 container_of(work, struct mac80211_hwsim_data, hw_scan.work);
1407 struct cfg80211_scan_request *req = hwsim->hw_scan_request;
1408 int dwell, i;
1409
1410 mutex_lock(&hwsim->mutex);
1411 if (hwsim->scan_chan_idx >= req->n_channels) {
1412 wiphy_debug(hwsim->hw->wiphy, "hw scan complete\n");
1413 ieee80211_scan_completed(hwsim->hw, false);
1414 hwsim->hw_scan_request = NULL;
1415 hwsim->hw_scan_vif = NULL;
1416 hwsim->tmp_chan = NULL;
1417 mutex_unlock(&hwsim->mutex);
1418 return;
1419 }
1420
1421 wiphy_debug(hwsim->hw->wiphy, "hw scan %d MHz\n",
1422 req->channels[hwsim->scan_chan_idx]->center_freq);
1423
1424 hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
1425 if (hwsim->tmp_chan->flags & IEEE80211_CHAN_PASSIVE_SCAN ||
1426 !req->n_ssids) {
1427 dwell = 120;
1428 } else {
1429 dwell = 30;
1430 /* send probes */
1431 for (i = 0; i < req->n_ssids; i++) {
1432 struct sk_buff *probe;
1433
1434 probe = ieee80211_probereq_get(hwsim->hw,
1435 hwsim->hw_scan_vif,
1436 req->ssids[i].ssid,
1437 req->ssids[i].ssid_len,
1438 req->ie_len);
1439 if (!probe)
1440 continue;
1441
1442 if (req->ie_len)
1443 memcpy(skb_put(probe, req->ie_len), req->ie,
1444 req->ie_len);
1445
1446 local_bh_disable();
1447 mac80211_hwsim_tx_frame(hwsim->hw, probe,
1448 hwsim->tmp_chan);
1449 local_bh_enable();
1450 }
1451 }
1452 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
1453 msecs_to_jiffies(dwell));
1454 hwsim->scan_chan_idx++;
1455 mutex_unlock(&hwsim->mutex);
1456 }
1457
1458 static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
1459 struct ieee80211_vif *vif,
1460 struct cfg80211_scan_request *req)
1461 {
1462 struct mac80211_hwsim_data *hwsim = hw->priv;
1463
1464 mutex_lock(&hwsim->mutex);
1465 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1466 mutex_unlock(&hwsim->mutex);
1467 return -EBUSY;
1468 }
1469 hwsim->hw_scan_request = req;
1470 hwsim->hw_scan_vif = vif;
1471 hwsim->scan_chan_idx = 0;
1472 mutex_unlock(&hwsim->mutex);
1473
1474 wiphy_debug(hw->wiphy, "hwsim hw_scan request\n");
1475
1476 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
1477
1478 return 0;
1479 }
1480
1481 static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
1482 struct ieee80211_vif *vif)
1483 {
1484 struct mac80211_hwsim_data *hwsim = hw->priv;
1485
1486 wiphy_debug(hw->wiphy, "hwsim cancel_hw_scan\n");
1487
1488 cancel_delayed_work_sync(&hwsim->hw_scan);
1489
1490 mutex_lock(&hwsim->mutex);
1491 ieee80211_scan_completed(hwsim->hw, true);
1492 hwsim->tmp_chan = NULL;
1493 hwsim->hw_scan_request = NULL;
1494 hwsim->hw_scan_vif = NULL;
1495 mutex_unlock(&hwsim->mutex);
1496 }
1497
1498 static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw)
1499 {
1500 struct mac80211_hwsim_data *hwsim = hw->priv;
1501
1502 mutex_lock(&hwsim->mutex);
1503
1504 if (hwsim->scanning) {
1505 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
1506 goto out;
1507 }
1508
1509 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
1510 hwsim->scanning = true;
1511
1512 out:
1513 mutex_unlock(&hwsim->mutex);
1514 }
1515
1516 static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw)
1517 {
1518 struct mac80211_hwsim_data *hwsim = hw->priv;
1519
1520 mutex_lock(&hwsim->mutex);
1521
1522 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
1523 hwsim->scanning = false;
1524
1525 mutex_unlock(&hwsim->mutex);
1526 }
1527
1528 static void hw_roc_done(struct work_struct *work)
1529 {
1530 struct mac80211_hwsim_data *hwsim =
1531 container_of(work, struct mac80211_hwsim_data, roc_done.work);
1532
1533 mutex_lock(&hwsim->mutex);
1534 ieee80211_remain_on_channel_expired(hwsim->hw);
1535 hwsim->tmp_chan = NULL;
1536 mutex_unlock(&hwsim->mutex);
1537
1538 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC expired\n");
1539 }
1540
1541 static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
1542 struct ieee80211_vif *vif,
1543 struct ieee80211_channel *chan,
1544 int duration,
1545 enum ieee80211_roc_type type)
1546 {
1547 struct mac80211_hwsim_data *hwsim = hw->priv;
1548
1549 mutex_lock(&hwsim->mutex);
1550 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1551 mutex_unlock(&hwsim->mutex);
1552 return -EBUSY;
1553 }
1554
1555 hwsim->tmp_chan = chan;
1556 mutex_unlock(&hwsim->mutex);
1557
1558 wiphy_debug(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
1559 chan->center_freq, duration);
1560
1561 ieee80211_ready_on_channel(hw);
1562
1563 ieee80211_queue_delayed_work(hw, &hwsim->roc_done,
1564 msecs_to_jiffies(duration));
1565 return 0;
1566 }
1567
1568 static int mac80211_hwsim_croc(struct ieee80211_hw *hw)
1569 {
1570 struct mac80211_hwsim_data *hwsim = hw->priv;
1571
1572 cancel_delayed_work_sync(&hwsim->roc_done);
1573
1574 mutex_lock(&hwsim->mutex);
1575 hwsim->tmp_chan = NULL;
1576 mutex_unlock(&hwsim->mutex);
1577
1578 wiphy_debug(hw->wiphy, "hwsim ROC canceled\n");
1579
1580 return 0;
1581 }
1582
1583 static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
1584 struct ieee80211_chanctx_conf *ctx)
1585 {
1586 hwsim_set_chanctx_magic(ctx);
1587 wiphy_debug(hw->wiphy,
1588 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1589 ctx->def.chan->center_freq, ctx->def.width,
1590 ctx->def.center_freq1, ctx->def.center_freq2);
1591 return 0;
1592 }
1593
1594 static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
1595 struct ieee80211_chanctx_conf *ctx)
1596 {
1597 wiphy_debug(hw->wiphy,
1598 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1599 ctx->def.chan->center_freq, ctx->def.width,
1600 ctx->def.center_freq1, ctx->def.center_freq2);
1601 hwsim_check_chanctx_magic(ctx);
1602 hwsim_clear_chanctx_magic(ctx);
1603 }
1604
1605 static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
1606 struct ieee80211_chanctx_conf *ctx,
1607 u32 changed)
1608 {
1609 hwsim_check_chanctx_magic(ctx);
1610 wiphy_debug(hw->wiphy,
1611 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1612 ctx->def.chan->center_freq, ctx->def.width,
1613 ctx->def.center_freq1, ctx->def.center_freq2);
1614 }
1615
1616 static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
1617 struct ieee80211_vif *vif,
1618 struct ieee80211_chanctx_conf *ctx)
1619 {
1620 hwsim_check_magic(vif);
1621 hwsim_check_chanctx_magic(ctx);
1622
1623 return 0;
1624 }
1625
1626 static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
1627 struct ieee80211_vif *vif,
1628 struct ieee80211_chanctx_conf *ctx)
1629 {
1630 hwsim_check_magic(vif);
1631 hwsim_check_chanctx_magic(ctx);
1632 }
1633
1634 static struct ieee80211_ops mac80211_hwsim_ops =
1635 {
1636 .tx = mac80211_hwsim_tx,
1637 .start = mac80211_hwsim_start,
1638 .stop = mac80211_hwsim_stop,
1639 .add_interface = mac80211_hwsim_add_interface,
1640 .change_interface = mac80211_hwsim_change_interface,
1641 .remove_interface = mac80211_hwsim_remove_interface,
1642 .config = mac80211_hwsim_config,
1643 .configure_filter = mac80211_hwsim_configure_filter,
1644 .bss_info_changed = mac80211_hwsim_bss_info_changed,
1645 .sta_add = mac80211_hwsim_sta_add,
1646 .sta_remove = mac80211_hwsim_sta_remove,
1647 .sta_notify = mac80211_hwsim_sta_notify,
1648 .set_tim = mac80211_hwsim_set_tim,
1649 .conf_tx = mac80211_hwsim_conf_tx,
1650 .get_survey = mac80211_hwsim_get_survey,
1651 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
1652 .ampdu_action = mac80211_hwsim_ampdu_action,
1653 .sw_scan_start = mac80211_hwsim_sw_scan,
1654 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
1655 .flush = mac80211_hwsim_flush,
1656 .get_tsf = mac80211_hwsim_get_tsf,
1657 .set_tsf = mac80211_hwsim_set_tsf,
1658 };
1659
1660
1661 static void mac80211_hwsim_free(void)
1662 {
1663 struct list_head tmplist, *i, *tmp;
1664 struct mac80211_hwsim_data *data, *tmpdata;
1665
1666 INIT_LIST_HEAD(&tmplist);
1667
1668 spin_lock_bh(&hwsim_radio_lock);
1669 list_for_each_safe(i, tmp, &hwsim_radios)
1670 list_move(i, &tmplist);
1671 spin_unlock_bh(&hwsim_radio_lock);
1672
1673 list_for_each_entry_safe(data, tmpdata, &tmplist, list) {
1674 debugfs_remove(data->debugfs_group);
1675 debugfs_remove(data->debugfs_ps);
1676 debugfs_remove(data->debugfs);
1677 ieee80211_unregister_hw(data->hw);
1678 device_unregister(data->dev);
1679 ieee80211_free_hw(data->hw);
1680 }
1681 class_destroy(hwsim_class);
1682 }
1683
1684
1685 static struct device_driver mac80211_hwsim_driver = {
1686 .name = "mac80211_hwsim"
1687 };
1688
1689 static const struct net_device_ops hwsim_netdev_ops = {
1690 .ndo_start_xmit = hwsim_mon_xmit,
1691 .ndo_change_mtu = eth_change_mtu,
1692 .ndo_set_mac_address = eth_mac_addr,
1693 .ndo_validate_addr = eth_validate_addr,
1694 };
1695
1696 static void hwsim_mon_setup(struct net_device *dev)
1697 {
1698 dev->netdev_ops = &hwsim_netdev_ops;
1699 dev->destructor = free_netdev;
1700 ether_setup(dev);
1701 dev->tx_queue_len = 0;
1702 dev->type = ARPHRD_IEEE80211_RADIOTAP;
1703 memset(dev->dev_addr, 0, ETH_ALEN);
1704 dev->dev_addr[0] = 0x12;
1705 }
1706
1707
1708 static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
1709 {
1710 struct mac80211_hwsim_data *data = dat;
1711 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1712 struct sk_buff *skb;
1713 struct ieee80211_pspoll *pspoll;
1714
1715 if (!vp->assoc)
1716 return;
1717
1718 wiphy_debug(data->hw->wiphy,
1719 "%s: send PS-Poll to %pM for aid %d\n",
1720 __func__, vp->bssid, vp->aid);
1721
1722 skb = dev_alloc_skb(sizeof(*pspoll));
1723 if (!skb)
1724 return;
1725 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
1726 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
1727 IEEE80211_STYPE_PSPOLL |
1728 IEEE80211_FCTL_PM);
1729 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
1730 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
1731 memcpy(pspoll->ta, mac, ETH_ALEN);
1732
1733 rcu_read_lock();
1734 mac80211_hwsim_tx_frame(data->hw, skb,
1735 rcu_dereference(vif->chanctx_conf)->def.chan);
1736 rcu_read_unlock();
1737 }
1738
1739 static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
1740 struct ieee80211_vif *vif, int ps)
1741 {
1742 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1743 struct sk_buff *skb;
1744 struct ieee80211_hdr *hdr;
1745
1746 if (!vp->assoc)
1747 return;
1748
1749 wiphy_debug(data->hw->wiphy,
1750 "%s: send data::nullfunc to %pM ps=%d\n",
1751 __func__, vp->bssid, ps);
1752
1753 skb = dev_alloc_skb(sizeof(*hdr));
1754 if (!skb)
1755 return;
1756 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
1757 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1758 IEEE80211_STYPE_NULLFUNC |
1759 (ps ? IEEE80211_FCTL_PM : 0));
1760 hdr->duration_id = cpu_to_le16(0);
1761 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
1762 memcpy(hdr->addr2, mac, ETH_ALEN);
1763 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
1764
1765 rcu_read_lock();
1766 mac80211_hwsim_tx_frame(data->hw, skb,
1767 rcu_dereference(vif->chanctx_conf)->def.chan);
1768 rcu_read_unlock();
1769 }
1770
1771
1772 static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
1773 struct ieee80211_vif *vif)
1774 {
1775 struct mac80211_hwsim_data *data = dat;
1776 hwsim_send_nullfunc(data, mac, vif, 1);
1777 }
1778
1779
1780 static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
1781 struct ieee80211_vif *vif)
1782 {
1783 struct mac80211_hwsim_data *data = dat;
1784 hwsim_send_nullfunc(data, mac, vif, 0);
1785 }
1786
1787
1788 static int hwsim_fops_ps_read(void *dat, u64 *val)
1789 {
1790 struct mac80211_hwsim_data *data = dat;
1791 *val = data->ps;
1792 return 0;
1793 }
1794
1795 static int hwsim_fops_ps_write(void *dat, u64 val)
1796 {
1797 struct mac80211_hwsim_data *data = dat;
1798 enum ps_mode old_ps;
1799
1800 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
1801 val != PS_MANUAL_POLL)
1802 return -EINVAL;
1803
1804 old_ps = data->ps;
1805 data->ps = val;
1806
1807 if (val == PS_MANUAL_POLL) {
1808 ieee80211_iterate_active_interfaces(data->hw,
1809 IEEE80211_IFACE_ITER_NORMAL,
1810 hwsim_send_ps_poll, data);
1811 data->ps_poll_pending = true;
1812 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
1813 ieee80211_iterate_active_interfaces(data->hw,
1814 IEEE80211_IFACE_ITER_NORMAL,
1815 hwsim_send_nullfunc_ps,
1816 data);
1817 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
1818 ieee80211_iterate_active_interfaces(data->hw,
1819 IEEE80211_IFACE_ITER_NORMAL,
1820 hwsim_send_nullfunc_no_ps,
1821 data);
1822 }
1823
1824 return 0;
1825 }
1826
1827 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
1828 "%llu\n");
1829
1830
1831 static int hwsim_fops_group_read(void *dat, u64 *val)
1832 {
1833 struct mac80211_hwsim_data *data = dat;
1834 *val = data->group;
1835 return 0;
1836 }
1837
1838 static int hwsim_fops_group_write(void *dat, u64 val)
1839 {
1840 struct mac80211_hwsim_data *data = dat;
1841 data->group = val;
1842 return 0;
1843 }
1844
1845 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
1846 hwsim_fops_group_read, hwsim_fops_group_write,
1847 "%llx\n");
1848
1849 static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(
1850 struct mac_address *addr)
1851 {
1852 struct mac80211_hwsim_data *data;
1853 bool _found = false;
1854
1855 spin_lock_bh(&hwsim_radio_lock);
1856 list_for_each_entry(data, &hwsim_radios, list) {
1857 if (memcmp(data->addresses[1].addr, addr,
1858 sizeof(struct mac_address)) == 0) {
1859 _found = true;
1860 break;
1861 }
1862 }
1863 spin_unlock_bh(&hwsim_radio_lock);
1864
1865 if (!_found)
1866 return NULL;
1867
1868 return data;
1869 }
1870
1871 static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
1872 struct genl_info *info)
1873 {
1874
1875 struct ieee80211_hdr *hdr;
1876 struct mac80211_hwsim_data *data2;
1877 struct ieee80211_tx_info *txi;
1878 struct hwsim_tx_rate *tx_attempts;
1879 unsigned long ret_skb_ptr;
1880 struct sk_buff *skb, *tmp;
1881 struct mac_address *src;
1882 unsigned int hwsim_flags;
1883
1884 int i;
1885 bool found = false;
1886
1887 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
1888 !info->attrs[HWSIM_ATTR_FLAGS] ||
1889 !info->attrs[HWSIM_ATTR_COOKIE] ||
1890 !info->attrs[HWSIM_ATTR_TX_INFO])
1891 goto out;
1892
1893 src = (struct mac_address *)nla_data(
1894 info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
1895 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
1896
1897 ret_skb_ptr = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
1898
1899 data2 = get_hwsim_data_ref_from_addr(src);
1900
1901 if (data2 == NULL)
1902 goto out;
1903
1904 /* look for the skb matching the cookie passed back from user */
1905 skb_queue_walk_safe(&data2->pending, skb, tmp) {
1906 if ((unsigned long)skb == ret_skb_ptr) {
1907 skb_unlink(skb, &data2->pending);
1908 found = true;
1909 break;
1910 }
1911 }
1912
1913 /* not found */
1914 if (!found)
1915 goto out;
1916
1917 /* Tx info received because the frame was broadcasted on user space,
1918 so we get all the necessary info: tx attempts and skb control buff */
1919
1920 tx_attempts = (struct hwsim_tx_rate *)nla_data(
1921 info->attrs[HWSIM_ATTR_TX_INFO]);
1922
1923 /* now send back TX status */
1924 txi = IEEE80211_SKB_CB(skb);
1925
1926 ieee80211_tx_info_clear_status(txi);
1927
1928 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
1929 txi->status.rates[i].idx = tx_attempts[i].idx;
1930 txi->status.rates[i].count = tx_attempts[i].count;
1931 /*txi->status.rates[i].flags = 0;*/
1932 }
1933
1934 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
1935
1936 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
1937 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
1938 if (skb->len >= 16) {
1939 hdr = (struct ieee80211_hdr *) skb->data;
1940 mac80211_hwsim_monitor_ack(txi->rate_driver_data[0],
1941 hdr->addr2);
1942 }
1943 txi->flags |= IEEE80211_TX_STAT_ACK;
1944 }
1945 ieee80211_tx_status_irqsafe(data2->hw, skb);
1946 return 0;
1947 out:
1948 return -EINVAL;
1949
1950 }
1951
1952 static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
1953 struct genl_info *info)
1954 {
1955
1956 struct mac80211_hwsim_data *data2;
1957 struct ieee80211_rx_status rx_status;
1958 struct mac_address *dst;
1959 int frame_data_len;
1960 char *frame_data;
1961 struct sk_buff *skb = NULL;
1962
1963 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
1964 !info->attrs[HWSIM_ATTR_FRAME] ||
1965 !info->attrs[HWSIM_ATTR_RX_RATE] ||
1966 !info->attrs[HWSIM_ATTR_SIGNAL])
1967 goto out;
1968
1969 dst = (struct mac_address *)nla_data(
1970 info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
1971
1972 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
1973 frame_data = (char *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
1974
1975 /* Allocate new skb here */
1976 skb = alloc_skb(frame_data_len, GFP_KERNEL);
1977 if (skb == NULL)
1978 goto err;
1979
1980 if (frame_data_len <= IEEE80211_MAX_DATA_LEN) {
1981 /* Copy the data */
1982 memcpy(skb_put(skb, frame_data_len), frame_data,
1983 frame_data_len);
1984 } else
1985 goto err;
1986
1987 data2 = get_hwsim_data_ref_from_addr(dst);
1988
1989 if (data2 == NULL)
1990 goto out;
1991
1992 /* check if radio is configured properly */
1993
1994 if (data2->idle || !data2->started)
1995 goto out;
1996
1997 /*A frame is received from user space*/
1998 memset(&rx_status, 0, sizeof(rx_status));
1999 rx_status.freq = data2->channel->center_freq;
2000 rx_status.band = data2->channel->band;
2001 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
2002 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
2003
2004 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
2005 ieee80211_rx_irqsafe(data2->hw, skb);
2006
2007 return 0;
2008 err:
2009 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
2010 goto out;
2011 out:
2012 dev_kfree_skb(skb);
2013 return -EINVAL;
2014 }
2015
2016 static int hwsim_register_received_nl(struct sk_buff *skb_2,
2017 struct genl_info *info)
2018 {
2019 if (info == NULL)
2020 goto out;
2021
2022 wmediumd_portid = info->snd_portid;
2023
2024 printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
2025 "switching to wmediumd mode with pid %d\n", info->snd_portid);
2026
2027 return 0;
2028 out:
2029 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
2030 return -EINVAL;
2031 }
2032
2033 /* Generic Netlink operations array */
2034 static struct genl_ops hwsim_ops[] = {
2035 {
2036 .cmd = HWSIM_CMD_REGISTER,
2037 .policy = hwsim_genl_policy,
2038 .doit = hwsim_register_received_nl,
2039 .flags = GENL_ADMIN_PERM,
2040 },
2041 {
2042 .cmd = HWSIM_CMD_FRAME,
2043 .policy = hwsim_genl_policy,
2044 .doit = hwsim_cloned_frame_received_nl,
2045 },
2046 {
2047 .cmd = HWSIM_CMD_TX_INFO_FRAME,
2048 .policy = hwsim_genl_policy,
2049 .doit = hwsim_tx_info_frame_received_nl,
2050 },
2051 };
2052
2053 static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
2054 unsigned long state,
2055 void *_notify)
2056 {
2057 struct netlink_notify *notify = _notify;
2058
2059 if (state != NETLINK_URELEASE)
2060 return NOTIFY_DONE;
2061
2062 if (notify->portid == wmediumd_portid) {
2063 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
2064 " socket, switching to perfect channel medium\n");
2065 wmediumd_portid = 0;
2066 }
2067 return NOTIFY_DONE;
2068
2069 }
2070
2071 static struct notifier_block hwsim_netlink_notifier = {
2072 .notifier_call = mac80211_hwsim_netlink_notify,
2073 };
2074
2075 static int hwsim_init_netlink(void)
2076 {
2077 int rc;
2078
2079 /* userspace test API hasn't been adjusted for multi-channel */
2080 if (channels > 1)
2081 return 0;
2082
2083 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
2084
2085 rc = genl_register_family_with_ops(&hwsim_genl_family,
2086 hwsim_ops, ARRAY_SIZE(hwsim_ops));
2087 if (rc)
2088 goto failure;
2089
2090 rc = netlink_register_notifier(&hwsim_netlink_notifier);
2091 if (rc)
2092 goto failure;
2093
2094 return 0;
2095
2096 failure:
2097 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
2098 return -EINVAL;
2099 }
2100
2101 static void hwsim_exit_netlink(void)
2102 {
2103 int ret;
2104
2105 /* userspace test API hasn't been adjusted for multi-channel */
2106 if (channels > 1)
2107 return;
2108
2109 printk(KERN_INFO "mac80211_hwsim: closing netlink\n");
2110 /* unregister the notifier */
2111 netlink_unregister_notifier(&hwsim_netlink_notifier);
2112 /* unregister the family */
2113 ret = genl_unregister_family(&hwsim_genl_family);
2114 if (ret)
2115 printk(KERN_DEBUG "mac80211_hwsim: "
2116 "unregister family %i\n", ret);
2117 }
2118
2119 static const struct ieee80211_iface_limit hwsim_if_limits[] = {
2120 { .max = 1, .types = BIT(NL80211_IFTYPE_ADHOC) },
2121 { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) |
2122 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2123 #ifdef CONFIG_MAC80211_MESH
2124 BIT(NL80211_IFTYPE_MESH_POINT) |
2125 #endif
2126 BIT(NL80211_IFTYPE_AP) |
2127 BIT(NL80211_IFTYPE_P2P_GO) },
2128 { .max = 1, .types = BIT(NL80211_IFTYPE_P2P_DEVICE) },
2129 };
2130
2131 static struct ieee80211_iface_combination hwsim_if_comb = {
2132 .limits = hwsim_if_limits,
2133 .n_limits = ARRAY_SIZE(hwsim_if_limits),
2134 .max_interfaces = 2048,
2135 .num_different_channels = 1,
2136 };
2137
2138 static int __init init_mac80211_hwsim(void)
2139 {
2140 int i, err = 0;
2141 u8 addr[ETH_ALEN];
2142 struct mac80211_hwsim_data *data;
2143 struct ieee80211_hw *hw;
2144 enum ieee80211_band band;
2145
2146 if (radios < 1 || radios > 100)
2147 return -EINVAL;
2148
2149 if (channels < 1)
2150 return -EINVAL;
2151
2152 if (channels > 1) {
2153 hwsim_if_comb.num_different_channels = channels;
2154 mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan;
2155 mac80211_hwsim_ops.cancel_hw_scan =
2156 mac80211_hwsim_cancel_hw_scan;
2157 mac80211_hwsim_ops.sw_scan_start = NULL;
2158 mac80211_hwsim_ops.sw_scan_complete = NULL;
2159 mac80211_hwsim_ops.remain_on_channel =
2160 mac80211_hwsim_roc;
2161 mac80211_hwsim_ops.cancel_remain_on_channel =
2162 mac80211_hwsim_croc;
2163 mac80211_hwsim_ops.add_chanctx =
2164 mac80211_hwsim_add_chanctx;
2165 mac80211_hwsim_ops.remove_chanctx =
2166 mac80211_hwsim_remove_chanctx;
2167 mac80211_hwsim_ops.change_chanctx =
2168 mac80211_hwsim_change_chanctx;
2169 mac80211_hwsim_ops.assign_vif_chanctx =
2170 mac80211_hwsim_assign_vif_chanctx;
2171 mac80211_hwsim_ops.unassign_vif_chanctx =
2172 mac80211_hwsim_unassign_vif_chanctx;
2173 }
2174
2175 spin_lock_init(&hwsim_radio_lock);
2176 INIT_LIST_HEAD(&hwsim_radios);
2177
2178 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
2179 if (IS_ERR(hwsim_class))
2180 return PTR_ERR(hwsim_class);
2181
2182 memset(addr, 0, ETH_ALEN);
2183 addr[0] = 0x02;
2184
2185 for (i = 0; i < radios; i++) {
2186 printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
2187 i);
2188 hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);
2189 if (!hw) {
2190 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
2191 "failed\n");
2192 err = -ENOMEM;
2193 goto failed;
2194 }
2195 data = hw->priv;
2196 data->hw = hw;
2197
2198 data->dev = device_create(hwsim_class, NULL, 0, hw,
2199 "hwsim%d", i);
2200 if (IS_ERR(data->dev)) {
2201 printk(KERN_DEBUG
2202 "mac80211_hwsim: device_create "
2203 "failed (%ld)\n", PTR_ERR(data->dev));
2204 err = -ENOMEM;
2205 goto failed_drvdata;
2206 }
2207 data->dev->driver = &mac80211_hwsim_driver;
2208 skb_queue_head_init(&data->pending);
2209
2210 SET_IEEE80211_DEV(hw, data->dev);
2211 addr[3] = i >> 8;
2212 addr[4] = i;
2213 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
2214 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
2215 data->addresses[1].addr[0] |= 0x40;
2216 hw->wiphy->n_addresses = 2;
2217 hw->wiphy->addresses = data->addresses;
2218
2219 hw->wiphy->iface_combinations = &hwsim_if_comb;
2220 hw->wiphy->n_iface_combinations = 1;
2221
2222 if (channels > 1) {
2223 hw->wiphy->max_scan_ssids = 255;
2224 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
2225 hw->wiphy->max_remain_on_channel_duration = 1000;
2226 }
2227
2228 INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
2229 INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
2230
2231 hw->channel_change_time = 1;
2232 hw->queues = 5;
2233 hw->offchannel_tx_hw_queue = 4;
2234 hw->wiphy->interface_modes =
2235 BIT(NL80211_IFTYPE_STATION) |
2236 BIT(NL80211_IFTYPE_AP) |
2237 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2238 BIT(NL80211_IFTYPE_P2P_GO) |
2239 BIT(NL80211_IFTYPE_ADHOC) |
2240 BIT(NL80211_IFTYPE_MESH_POINT) |
2241 BIT(NL80211_IFTYPE_P2P_DEVICE);
2242
2243 hw->flags = IEEE80211_HW_MFP_CAPABLE |
2244 IEEE80211_HW_SIGNAL_DBM |
2245 IEEE80211_HW_SUPPORTS_STATIC_SMPS |
2246 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
2247 IEEE80211_HW_AMPDU_AGGREGATION |
2248 IEEE80211_HW_WANT_MONITOR_VIF |
2249 IEEE80211_HW_QUEUE_CONTROL;
2250
2251 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2252 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
2253
2254 /* ask mac80211 to reserve space for magic */
2255 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
2256 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
2257 hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
2258
2259 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
2260 sizeof(hwsim_channels_2ghz));
2261 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
2262 sizeof(hwsim_channels_5ghz));
2263 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
2264
2265 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
2266 struct ieee80211_supported_band *sband = &data->bands[band];
2267 switch (band) {
2268 case IEEE80211_BAND_2GHZ:
2269 sband->channels = data->channels_2ghz;
2270 sband->n_channels =
2271 ARRAY_SIZE(hwsim_channels_2ghz);
2272 sband->bitrates = data->rates;
2273 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
2274 break;
2275 case IEEE80211_BAND_5GHZ:
2276 sband->channels = data->channels_5ghz;
2277 sband->n_channels =
2278 ARRAY_SIZE(hwsim_channels_5ghz);
2279 sband->bitrates = data->rates + 4;
2280 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
2281 break;
2282 default:
2283 continue;
2284 }
2285
2286 sband->ht_cap.ht_supported = true;
2287 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
2288 IEEE80211_HT_CAP_GRN_FLD |
2289 IEEE80211_HT_CAP_SGI_40 |
2290 IEEE80211_HT_CAP_DSSSCCK40;
2291 sband->ht_cap.ampdu_factor = 0x3;
2292 sband->ht_cap.ampdu_density = 0x6;
2293 memset(&sband->ht_cap.mcs, 0,
2294 sizeof(sband->ht_cap.mcs));
2295 sband->ht_cap.mcs.rx_mask[0] = 0xff;
2296 sband->ht_cap.mcs.rx_mask[1] = 0xff;
2297 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2298
2299 hw->wiphy->bands[band] = sband;
2300
2301 if (channels == 1)
2302 continue;
2303
2304 sband->vht_cap.vht_supported = true;
2305 sband->vht_cap.cap =
2306 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
2307 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
2308 IEEE80211_VHT_CAP_RXLDPC |
2309 IEEE80211_VHT_CAP_SHORT_GI_80 |
2310 IEEE80211_VHT_CAP_SHORT_GI_160 |
2311 IEEE80211_VHT_CAP_TXSTBC |
2312 IEEE80211_VHT_CAP_RXSTBC_1 |
2313 IEEE80211_VHT_CAP_RXSTBC_2 |
2314 IEEE80211_VHT_CAP_RXSTBC_3 |
2315 IEEE80211_VHT_CAP_RXSTBC_4 |
2316 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
2317 sband->vht_cap.vht_mcs.rx_mcs_map =
2318 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_8 << 0 |
2319 IEEE80211_VHT_MCS_SUPPORT_0_8 << 2 |
2320 IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
2321 IEEE80211_VHT_MCS_SUPPORT_0_8 << 6 |
2322 IEEE80211_VHT_MCS_SUPPORT_0_8 << 8 |
2323 IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
2324 IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
2325 IEEE80211_VHT_MCS_SUPPORT_0_8 << 14);
2326 sband->vht_cap.vht_mcs.tx_mcs_map =
2327 sband->vht_cap.vht_mcs.rx_mcs_map;
2328 }
2329 /* By default all radios are belonging to the first group */
2330 data->group = 1;
2331 mutex_init(&data->mutex);
2332
2333 /* Enable frame retransmissions for lossy channels */
2334 hw->max_rates = 4;
2335 hw->max_rate_tries = 11;
2336
2337 /* Work to be done prior to ieee80211_register_hw() */
2338 switch (regtest) {
2339 case HWSIM_REGTEST_DISABLED:
2340 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
2341 case HWSIM_REGTEST_DRIVER_REG_ALL:
2342 case HWSIM_REGTEST_DIFF_COUNTRY:
2343 /*
2344 * Nothing to be done for driver regulatory domain
2345 * hints prior to ieee80211_register_hw()
2346 */
2347 break;
2348 case HWSIM_REGTEST_WORLD_ROAM:
2349 if (i == 0) {
2350 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
2351 wiphy_apply_custom_regulatory(hw->wiphy,
2352 &hwsim_world_regdom_custom_01);
2353 }
2354 break;
2355 case HWSIM_REGTEST_CUSTOM_WORLD:
2356 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
2357 wiphy_apply_custom_regulatory(hw->wiphy,
2358 &hwsim_world_regdom_custom_01);
2359 break;
2360 case HWSIM_REGTEST_CUSTOM_WORLD_2:
2361 if (i == 0) {
2362 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
2363 wiphy_apply_custom_regulatory(hw->wiphy,
2364 &hwsim_world_regdom_custom_01);
2365 } else if (i == 1) {
2366 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
2367 wiphy_apply_custom_regulatory(hw->wiphy,
2368 &hwsim_world_regdom_custom_02);
2369 }
2370 break;
2371 case HWSIM_REGTEST_STRICT_ALL:
2372 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
2373 break;
2374 case HWSIM_REGTEST_STRICT_FOLLOW:
2375 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
2376 if (i == 0)
2377 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
2378 break;
2379 case HWSIM_REGTEST_ALL:
2380 if (i == 0) {
2381 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
2382 wiphy_apply_custom_regulatory(hw->wiphy,
2383 &hwsim_world_regdom_custom_01);
2384 } else if (i == 1) {
2385 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
2386 wiphy_apply_custom_regulatory(hw->wiphy,
2387 &hwsim_world_regdom_custom_02);
2388 } else if (i == 4)
2389 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
2390 break;
2391 default:
2392 break;
2393 }
2394
2395 /* give the regulatory workqueue a chance to run */
2396 if (regtest)
2397 schedule_timeout_interruptible(1);
2398 err = ieee80211_register_hw(hw);
2399 if (err < 0) {
2400 printk(KERN_DEBUG "mac80211_hwsim: "
2401 "ieee80211_register_hw failed (%d)\n", err);
2402 goto failed_hw;
2403 }
2404
2405 /* Work to be done after to ieee80211_register_hw() */
2406 switch (regtest) {
2407 case HWSIM_REGTEST_WORLD_ROAM:
2408 case HWSIM_REGTEST_DISABLED:
2409 break;
2410 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
2411 if (!i)
2412 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2413 break;
2414 case HWSIM_REGTEST_DRIVER_REG_ALL:
2415 case HWSIM_REGTEST_STRICT_ALL:
2416 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2417 break;
2418 case HWSIM_REGTEST_DIFF_COUNTRY:
2419 if (i < ARRAY_SIZE(hwsim_alpha2s))
2420 regulatory_hint(hw->wiphy, hwsim_alpha2s[i]);
2421 break;
2422 case HWSIM_REGTEST_CUSTOM_WORLD:
2423 case HWSIM_REGTEST_CUSTOM_WORLD_2:
2424 /*
2425 * Nothing to be done for custom world regulatory
2426 * domains after to ieee80211_register_hw
2427 */
2428 break;
2429 case HWSIM_REGTEST_STRICT_FOLLOW:
2430 if (i == 0)
2431 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2432 break;
2433 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
2434 if (i == 0)
2435 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2436 else if (i == 1)
2437 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
2438 break;
2439 case HWSIM_REGTEST_ALL:
2440 if (i == 2)
2441 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2442 else if (i == 3)
2443 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
2444 else if (i == 4)
2445 regulatory_hint(hw->wiphy, hwsim_alpha2s[2]);
2446 break;
2447 default:
2448 break;
2449 }
2450
2451 wiphy_debug(hw->wiphy, "hwaddr %pm registered\n",
2452 hw->wiphy->perm_addr);
2453
2454 data->debugfs = debugfs_create_dir("hwsim",
2455 hw->wiphy->debugfsdir);
2456 data->debugfs_ps = debugfs_create_file("ps", 0666,
2457 data->debugfs, data,
2458 &hwsim_fops_ps);
2459 data->debugfs_group = debugfs_create_file("group", 0666,
2460 data->debugfs, data,
2461 &hwsim_fops_group);
2462
2463 tasklet_hrtimer_init(&data->beacon_timer,
2464 mac80211_hwsim_beacon,
2465 CLOCK_REALTIME, HRTIMER_MODE_ABS);
2466
2467 list_add_tail(&data->list, &hwsim_radios);
2468 }
2469
2470 hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
2471 if (hwsim_mon == NULL)
2472 goto failed;
2473
2474 rtnl_lock();
2475
2476 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
2477 if (err < 0)
2478 goto failed_mon;
2479
2480
2481 err = register_netdevice(hwsim_mon);
2482 if (err < 0)
2483 goto failed_mon;
2484
2485 rtnl_unlock();
2486
2487 err = hwsim_init_netlink();
2488 if (err < 0)
2489 goto failed_nl;
2490
2491 return 0;
2492
2493 failed_nl:
2494 printk(KERN_DEBUG "mac_80211_hwsim: failed initializing netlink\n");
2495 return err;
2496
2497 failed_mon:
2498 rtnl_unlock();
2499 free_netdev(hwsim_mon);
2500 mac80211_hwsim_free();
2501 return err;
2502
2503 failed_hw:
2504 device_unregister(data->dev);
2505 failed_drvdata:
2506 ieee80211_free_hw(hw);
2507 failed:
2508 mac80211_hwsim_free();
2509 return err;
2510 }
2511 module_init(init_mac80211_hwsim);
2512
2513 static void __exit exit_mac80211_hwsim(void)
2514 {
2515 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
2516
2517 hwsim_exit_netlink();
2518
2519 mac80211_hwsim_free();
2520 unregister_netdev(hwsim_mon);
2521 }
2522 module_exit(exit_mac80211_hwsim);
Linux kernel - Deliverables
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