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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
[linux-btrfs-devel.git] / drivers / net / wireless / mac80211_hwsim.c
blob68455a2307cb54ba99611cb6618ed16169b9f0df
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 <net/genetlink.h>
30 #include "mac80211_hwsim.h"
31
32 #define WARN_QUEUE 100
33 #define MAX_QUEUE 200
34
35 MODULE_AUTHOR("Jouni Malinen");
36 MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
37 MODULE_LICENSE("GPL");
38
39 int wmediumd_pid;
40 static int radios = 2;
41 module_param(radios, int, 0444);
42 MODULE_PARM_DESC(radios, "Number of simulated radios");
43
44 static bool fake_hw_scan;
45 module_param(fake_hw_scan, bool, 0444);
46 MODULE_PARM_DESC(fake_hw_scan, "Install fake (no-op) hw-scan handler");
47
48 /**
49 * enum hwsim_regtest - the type of regulatory tests we offer
50 *
51 * These are the different values you can use for the regtest
52 * module parameter. This is useful to help test world roaming
53 * and the driver regulatory_hint() call and combinations of these.
54 * If you want to do specific alpha2 regulatory domain tests simply
55 * use the userspace regulatory request as that will be respected as
56 * well without the need of this module parameter. This is designed
57 * only for testing the driver regulatory request, world roaming
58 * and all possible combinations.
59 *
60 * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
61 * this is the default value.
62 * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
63 * hint, only one driver regulatory hint will be sent as such the
64 * secondary radios are expected to follow.
65 * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
66 * request with all radios reporting the same regulatory domain.
67 * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
68 * different regulatory domains requests. Expected behaviour is for
69 * an intersection to occur but each device will still use their
70 * respective regulatory requested domains. Subsequent radios will
71 * use the resulting intersection.
72 * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We accomplish
73 * this by using a custom beacon-capable regulatory domain for the first
74 * radio. All other device world roam.
75 * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
76 * domain requests. All radios will adhere to this custom world regulatory
77 * domain.
78 * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
79 * domain requests. The first radio will adhere to the first custom world
80 * regulatory domain, the second one to the second custom world regulatory
81 * domain. All other devices will world roam.
82 * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain
83 * settings, only the first radio will send a regulatory domain request
84 * and use strict settings. The rest of the radios are expected to follow.
85 * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
86 * settings. All radios will adhere to this.
87 * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
88 * domain settings, combined with secondary driver regulatory domain
89 * settings. The first radio will get a strict regulatory domain setting
90 * using the first driver regulatory request and the second radio will use
91 * non-strict settings using the second driver regulatory request. All
92 * other devices should follow the intersection created between the
93 * first two.
94 * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
95 * at least 6 radios for a complete test. We will test in this order:
96 * 1 - driver custom world regulatory domain
97 * 2 - second custom world regulatory domain
98 * 3 - first driver regulatory domain request
99 * 4 - second driver regulatory domain request
100 * 5 - strict regulatory domain settings using the third driver regulatory
101 * domain request
102 * 6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
103 * regulatory requests.
104 */
105 enum hwsim_regtest {
106 HWSIM_REGTEST_DISABLED = 0,
107 HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1,
108 HWSIM_REGTEST_DRIVER_REG_ALL = 2,
109 HWSIM_REGTEST_DIFF_COUNTRY = 3,
110 HWSIM_REGTEST_WORLD_ROAM = 4,
111 HWSIM_REGTEST_CUSTOM_WORLD = 5,
112 HWSIM_REGTEST_CUSTOM_WORLD_2 = 6,
113 HWSIM_REGTEST_STRICT_FOLLOW = 7,
114 HWSIM_REGTEST_STRICT_ALL = 8,
115 HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9,
116 HWSIM_REGTEST_ALL = 10,
117 };
118
119 /* Set to one of the HWSIM_REGTEST_* values above */
120 static int regtest = HWSIM_REGTEST_DISABLED;
121 module_param(regtest, int, 0444);
122 MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run");
123
124 static const char *hwsim_alpha2s[] = {
125 "FI",
126 "AL",
127 "US",
128 "DE",
129 "JP",
130 "AL",
131 };
132
133 static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = {
134 .n_reg_rules = 4,
135 .alpha2 = "99",
136 .reg_rules = {
137 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
138 REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
139 REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
140 REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
141 }
142 };
143
144 static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = {
145 .n_reg_rules = 2,
146 .alpha2 = "99",
147 .reg_rules = {
148 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
149 REG_RULE(5725-10, 5850+10, 40, 0, 30,
150 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
151 }
152 };
153
154 struct hwsim_vif_priv {
155 u32 magic;
156 u8 bssid[ETH_ALEN];
157 bool assoc;
158 u16 aid;
159 };
160
161 #define HWSIM_VIF_MAGIC 0x69537748
162
163 static inline void hwsim_check_magic(struct ieee80211_vif *vif)
164 {
165 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
166 WARN_ON(vp->magic != HWSIM_VIF_MAGIC);
167 }
168
169 static inline void hwsim_set_magic(struct ieee80211_vif *vif)
170 {
171 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
172 vp->magic = HWSIM_VIF_MAGIC;
173 }
174
175 static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
176 {
177 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
178 vp->magic = 0;
179 }
180
181 struct hwsim_sta_priv {
182 u32 magic;
183 };
184
185 #define HWSIM_STA_MAGIC 0x6d537748
186
187 static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
188 {
189 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
190 WARN_ON(sp->magic != HWSIM_STA_MAGIC);
191 }
192
193 static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
194 {
195 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
196 sp->magic = HWSIM_STA_MAGIC;
197 }
198
199 static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
200 {
201 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
202 sp->magic = 0;
203 }
204
205 static struct class *hwsim_class;
206
207 static struct net_device *hwsim_mon; /* global monitor netdev */
208
209 #define CHAN2G(_freq) { \
210 .band = IEEE80211_BAND_2GHZ, \
211 .center_freq = (_freq), \
212 .hw_value = (_freq), \
213 .max_power = 20, \
214 }
215
216 #define CHAN5G(_freq) { \
217 .band = IEEE80211_BAND_5GHZ, \
218 .center_freq = (_freq), \
219 .hw_value = (_freq), \
220 .max_power = 20, \
221 }
222
223 static const struct ieee80211_channel hwsim_channels_2ghz[] = {
224 CHAN2G(2412), /* Channel 1 */
225 CHAN2G(2417), /* Channel 2 */
226 CHAN2G(2422), /* Channel 3 */
227 CHAN2G(2427), /* Channel 4 */
228 CHAN2G(2432), /* Channel 5 */
229 CHAN2G(2437), /* Channel 6 */
230 CHAN2G(2442), /* Channel 7 */
231 CHAN2G(2447), /* Channel 8 */
232 CHAN2G(2452), /* Channel 9 */
233 CHAN2G(2457), /* Channel 10 */
234 CHAN2G(2462), /* Channel 11 */
235 CHAN2G(2467), /* Channel 12 */
236 CHAN2G(2472), /* Channel 13 */
237 CHAN2G(2484), /* Channel 14 */
238 };
239
240 static const struct ieee80211_channel hwsim_channels_5ghz[] = {
241 CHAN5G(5180), /* Channel 36 */
242 CHAN5G(5200), /* Channel 40 */
243 CHAN5G(5220), /* Channel 44 */
244 CHAN5G(5240), /* Channel 48 */
245
246 CHAN5G(5260), /* Channel 52 */
247 CHAN5G(5280), /* Channel 56 */
248 CHAN5G(5300), /* Channel 60 */
249 CHAN5G(5320), /* Channel 64 */
250
251 CHAN5G(5500), /* Channel 100 */
252 CHAN5G(5520), /* Channel 104 */
253 CHAN5G(5540), /* Channel 108 */
254 CHAN5G(5560), /* Channel 112 */
255 CHAN5G(5580), /* Channel 116 */
256 CHAN5G(5600), /* Channel 120 */
257 CHAN5G(5620), /* Channel 124 */
258 CHAN5G(5640), /* Channel 128 */
259 CHAN5G(5660), /* Channel 132 */
260 CHAN5G(5680), /* Channel 136 */
261 CHAN5G(5700), /* Channel 140 */
262
263 CHAN5G(5745), /* Channel 149 */
264 CHAN5G(5765), /* Channel 153 */
265 CHAN5G(5785), /* Channel 157 */
266 CHAN5G(5805), /* Channel 161 */
267 CHAN5G(5825), /* Channel 165 */
268 };
269
270 static const struct ieee80211_rate hwsim_rates[] = {
271 { .bitrate = 10 },
272 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
273 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
274 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
275 { .bitrate = 60 },
276 { .bitrate = 90 },
277 { .bitrate = 120 },
278 { .bitrate = 180 },
279 { .bitrate = 240 },
280 { .bitrate = 360 },
281 { .bitrate = 480 },
282 { .bitrate = 540 }
283 };
284
285 static spinlock_t hwsim_radio_lock;
286 static struct list_head hwsim_radios;
287
288 struct mac80211_hwsim_data {
289 struct list_head list;
290 struct ieee80211_hw *hw;
291 struct device *dev;
292 struct ieee80211_supported_band bands[2];
293 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
294 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
295 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
296
297 struct mac_address addresses[2];
298
299 struct ieee80211_channel *channel;
300 unsigned long beacon_int; /* in jiffies unit */
301 unsigned int rx_filter;
302 bool started, idle, scanning;
303 struct mutex mutex;
304 struct timer_list beacon_timer;
305 enum ps_mode {
306 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
307 } ps;
308 bool ps_poll_pending;
309 struct dentry *debugfs;
310 struct dentry *debugfs_ps;
311
312 struct sk_buff_head pending; /* packets pending */
313 /*
314 * Only radios in the same group can communicate together (the
315 * channel has to match too). Each bit represents a group. A
316 * radio can be in more then one group.
317 */
318 u64 group;
319 struct dentry *debugfs_group;
320
321 int power_level;
322 };
323
324
325 struct hwsim_radiotap_hdr {
326 struct ieee80211_radiotap_header hdr;
327 u8 rt_flags;
328 u8 rt_rate;
329 __le16 rt_channel;
330 __le16 rt_chbitmask;
331 } __packed;
332
333 /* MAC80211_HWSIM netlinf family */
334 static struct genl_family hwsim_genl_family = {
335 .id = GENL_ID_GENERATE,
336 .hdrsize = 0,
337 .name = "MAC80211_HWSIM",
338 .version = 1,
339 .maxattr = HWSIM_ATTR_MAX,
340 };
341
342 /* MAC80211_HWSIM netlink policy */
343
344 static struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
345 [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC,
346 .len = 6*sizeof(u8) },
347 [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC,
348 .len = 6*sizeof(u8) },
349 [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
350 .len = IEEE80211_MAX_DATA_LEN },
351 [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
352 [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
353 [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
354 [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC,
355 .len = IEEE80211_TX_MAX_RATES*sizeof(
356 struct hwsim_tx_rate)},
357 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
358 };
359
360 static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
361 struct net_device *dev)
362 {
363 /* TODO: allow packet injection */
364 dev_kfree_skb(skb);
365 return NETDEV_TX_OK;
366 }
367
368
369 static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
370 struct sk_buff *tx_skb)
371 {
372 struct mac80211_hwsim_data *data = hw->priv;
373 struct sk_buff *skb;
374 struct hwsim_radiotap_hdr *hdr;
375 u16 flags;
376 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
377 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
378
379 if (!netif_running(hwsim_mon))
380 return;
381
382 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
383 if (skb == NULL)
384 return;
385
386 hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
387 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
388 hdr->hdr.it_pad = 0;
389 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
390 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
391 (1 << IEEE80211_RADIOTAP_RATE) |
392 (1 << IEEE80211_RADIOTAP_CHANNEL));
393 hdr->rt_flags = 0;
394 hdr->rt_rate = txrate->bitrate / 5;
395 hdr->rt_channel = cpu_to_le16(data->channel->center_freq);
396 flags = IEEE80211_CHAN_2GHZ;
397 if (txrate->flags & IEEE80211_RATE_ERP_G)
398 flags |= IEEE80211_CHAN_OFDM;
399 else
400 flags |= IEEE80211_CHAN_CCK;
401 hdr->rt_chbitmask = cpu_to_le16(flags);
402
403 skb->dev = hwsim_mon;
404 skb_set_mac_header(skb, 0);
405 skb->ip_summed = CHECKSUM_UNNECESSARY;
406 skb->pkt_type = PACKET_OTHERHOST;
407 skb->protocol = htons(ETH_P_802_2);
408 memset(skb->cb, 0, sizeof(skb->cb));
409 netif_rx(skb);
410 }
411
412
413 static void mac80211_hwsim_monitor_ack(struct ieee80211_hw *hw, const u8 *addr)
414 {
415 struct mac80211_hwsim_data *data = hw->priv;
416 struct sk_buff *skb;
417 struct hwsim_radiotap_hdr *hdr;
418 u16 flags;
419 struct ieee80211_hdr *hdr11;
420
421 if (!netif_running(hwsim_mon))
422 return;
423
424 skb = dev_alloc_skb(100);
425 if (skb == NULL)
426 return;
427
428 hdr = (struct hwsim_radiotap_hdr *) skb_put(skb, sizeof(*hdr));
429 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
430 hdr->hdr.it_pad = 0;
431 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
432 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
433 (1 << IEEE80211_RADIOTAP_CHANNEL));
434 hdr->rt_flags = 0;
435 hdr->rt_rate = 0;
436 hdr->rt_channel = cpu_to_le16(data->channel->center_freq);
437 flags = IEEE80211_CHAN_2GHZ;
438 hdr->rt_chbitmask = cpu_to_le16(flags);
439
440 hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
441 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
442 IEEE80211_STYPE_ACK);
443 hdr11->duration_id = cpu_to_le16(0);
444 memcpy(hdr11->addr1, addr, ETH_ALEN);
445
446 skb->dev = hwsim_mon;
447 skb_set_mac_header(skb, 0);
448 skb->ip_summed = CHECKSUM_UNNECESSARY;
449 skb->pkt_type = PACKET_OTHERHOST;
450 skb->protocol = htons(ETH_P_802_2);
451 memset(skb->cb, 0, sizeof(skb->cb));
452 netif_rx(skb);
453 }
454
455
456 static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
457 struct sk_buff *skb)
458 {
459 switch (data->ps) {
460 case PS_DISABLED:
461 return true;
462 case PS_ENABLED:
463 return false;
464 case PS_AUTO_POLL:
465 /* TODO: accept (some) Beacons by default and other frames only
466 * if pending PS-Poll has been sent */
467 return true;
468 case PS_MANUAL_POLL:
469 /* Allow unicast frames to own address if there is a pending
470 * PS-Poll */
471 if (data->ps_poll_pending &&
472 memcmp(data->hw->wiphy->perm_addr, skb->data + 4,
473 ETH_ALEN) == 0) {
474 data->ps_poll_pending = false;
475 return true;
476 }
477 return false;
478 }
479
480 return true;
481 }
482
483
484 struct mac80211_hwsim_addr_match_data {
485 bool ret;
486 const u8 *addr;
487 };
488
489 static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
490 struct ieee80211_vif *vif)
491 {
492 struct mac80211_hwsim_addr_match_data *md = data;
493 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
494 md->ret = true;
495 }
496
497
498 static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
499 const u8 *addr)
500 {
501 struct mac80211_hwsim_addr_match_data md;
502
503 if (memcmp(addr, data->hw->wiphy->perm_addr, ETH_ALEN) == 0)
504 return true;
505
506 md.ret = false;
507 md.addr = addr;
508 ieee80211_iterate_active_interfaces_atomic(data->hw,
509 mac80211_hwsim_addr_iter,
510 &md);
511
512 return md.ret;
513 }
514
515 static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
516 struct sk_buff *my_skb,
517 int dst_pid)
518 {
519 struct sk_buff *skb;
520 struct mac80211_hwsim_data *data = hw->priv;
521 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
522 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
523 void *msg_head;
524 unsigned int hwsim_flags = 0;
525 int i;
526 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
527
528 if (data->idle) {
529 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
530 dev_kfree_skb(my_skb);
531 return;
532 }
533
534 if (data->ps != PS_DISABLED)
535 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
536 /* If the queue contains MAX_QUEUE skb's drop some */
537 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
538 /* Droping until WARN_QUEUE level */
539 while (skb_queue_len(&data->pending) >= WARN_QUEUE)
540 skb_dequeue(&data->pending);
541 }
542
543 skb = genlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC);
544 if (skb == NULL)
545 goto nla_put_failure;
546
547 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
548 HWSIM_CMD_FRAME);
549 if (msg_head == NULL) {
550 printk(KERN_DEBUG "mac80211_hwsim: problem with msg_head\n");
551 goto nla_put_failure;
552 }
553
554 NLA_PUT(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
555 sizeof(struct mac_address), data->addresses[1].addr);
556
557 /* We get the skb->data */
558 NLA_PUT(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data);
559
560 /* We get the flags for this transmission, and we translate them to
561 wmediumd flags */
562
563 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
564 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
565
566 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
567 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
568
569 NLA_PUT_U32(skb, HWSIM_ATTR_FLAGS, hwsim_flags);
570
571 /* We get the tx control (rate and retries) info*/
572
573 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
574 tx_attempts[i].idx = info->status.rates[i].idx;
575 tx_attempts[i].count = info->status.rates[i].count;
576 }
577
578 NLA_PUT(skb, HWSIM_ATTR_TX_INFO,
579 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
580 tx_attempts);
581
582 /* We create a cookie to identify this skb */
583 NLA_PUT_U64(skb, HWSIM_ATTR_COOKIE, (unsigned long) my_skb);
584
585 genlmsg_end(skb, msg_head);
586 genlmsg_unicast(&init_net, skb, dst_pid);
587
588 /* Enqueue the packet */
589 skb_queue_tail(&data->pending, my_skb);
590 return;
591
592 nla_put_failure:
593 printk(KERN_DEBUG "mac80211_hwsim: error occured in %s\n", __func__);
594 }
595
596 static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
597 struct sk_buff *skb)
598 {
599 struct mac80211_hwsim_data *data = hw->priv, *data2;
600 bool ack = false;
601 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
602 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
603 struct ieee80211_rx_status rx_status;
604
605 if (data->idle) {
606 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
607 return false;
608 }
609
610 memset(&rx_status, 0, sizeof(rx_status));
611 /* TODO: set mactime */
612 rx_status.freq = data->channel->center_freq;
613 rx_status.band = data->channel->band;
614 rx_status.rate_idx = info->control.rates[0].idx;
615 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
616 rx_status.flag |= RX_FLAG_HT;
617 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
618 rx_status.flag |= RX_FLAG_40MHZ;
619 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
620 rx_status.flag |= RX_FLAG_SHORT_GI;
621 /* TODO: simulate real signal strength (and optional packet loss) */
622 rx_status.signal = data->power_level - 50;
623
624 if (data->ps != PS_DISABLED)
625 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
626
627 /* release the skb's source info */
628 skb_orphan(skb);
629 skb_dst_drop(skb);
630 skb->mark = 0;
631 secpath_reset(skb);
632 nf_reset(skb);
633
634 /* Copy skb to all enabled radios that are on the current frequency */
635 spin_lock(&hwsim_radio_lock);
636 list_for_each_entry(data2, &hwsim_radios, list) {
637 struct sk_buff *nskb;
638
639 if (data == data2)
640 continue;
641
642 if (data2->idle || !data2->started ||
643 !hwsim_ps_rx_ok(data2, skb) ||
644 !data->channel || !data2->channel ||
645 data->channel->center_freq != data2->channel->center_freq ||
646 !(data->group & data2->group))
647 continue;
648
649 nskb = skb_copy(skb, GFP_ATOMIC);
650 if (nskb == NULL)
651 continue;
652
653 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
654 ack = true;
655 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
656 ieee80211_rx_irqsafe(data2->hw, nskb);
657 }
658 spin_unlock(&hwsim_radio_lock);
659
660 return ack;
661 }
662
663 static void mac80211_hwsim_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
664 {
665 bool ack;
666 struct ieee80211_tx_info *txi;
667 int _pid;
668
669 mac80211_hwsim_monitor_rx(hw, skb);
670
671 if (skb->len < 10) {
672 /* Should not happen; just a sanity check for addr1 use */
673 dev_kfree_skb(skb);
674 return;
675 }
676
677 /* wmediumd mode check */
678 _pid = wmediumd_pid;
679
680 if (_pid)
681 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
682
683 /* NO wmediumd detected, perfect medium simulation */
684 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb);
685
686 if (ack && skb->len >= 16) {
687 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
688 mac80211_hwsim_monitor_ack(hw, hdr->addr2);
689 }
690
691 txi = IEEE80211_SKB_CB(skb);
692
693 if (txi->control.vif)
694 hwsim_check_magic(txi->control.vif);
695 if (txi->control.sta)
696 hwsim_check_sta_magic(txi->control.sta);
697
698 ieee80211_tx_info_clear_status(txi);
699 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
700 txi->flags |= IEEE80211_TX_STAT_ACK;
701 ieee80211_tx_status_irqsafe(hw, skb);
702 }
703
704
705 static int mac80211_hwsim_start(struct ieee80211_hw *hw)
706 {
707 struct mac80211_hwsim_data *data = hw->priv;
708 wiphy_debug(hw->wiphy, "%s\n", __func__);
709 data->started = 1;
710 return 0;
711 }
712
713
714 static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
715 {
716 struct mac80211_hwsim_data *data = hw->priv;
717 data->started = 0;
718 del_timer(&data->beacon_timer);
719 wiphy_debug(hw->wiphy, "%s\n", __func__);
720 }
721
722
723 static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
724 struct ieee80211_vif *vif)
725 {
726 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
727 __func__, ieee80211_vif_type_p2p(vif),
728 vif->addr);
729 hwsim_set_magic(vif);
730 return 0;
731 }
732
733
734 static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
735 struct ieee80211_vif *vif,
736 enum nl80211_iftype newtype,
737 bool newp2p)
738 {
739 newtype = ieee80211_iftype_p2p(newtype, newp2p);
740 wiphy_debug(hw->wiphy,
741 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
742 __func__, ieee80211_vif_type_p2p(vif),
743 newtype, vif->addr);
744 hwsim_check_magic(vif);
745
746 return 0;
747 }
748
749 static void mac80211_hwsim_remove_interface(
750 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
751 {
752 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
753 __func__, ieee80211_vif_type_p2p(vif),
754 vif->addr);
755 hwsim_check_magic(vif);
756 hwsim_clear_magic(vif);
757 }
758
759
760 static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
761 struct ieee80211_vif *vif)
762 {
763 struct ieee80211_hw *hw = arg;
764 struct sk_buff *skb;
765 struct ieee80211_tx_info *info;
766 int _pid;
767
768 hwsim_check_magic(vif);
769
770 if (vif->type != NL80211_IFTYPE_AP &&
771 vif->type != NL80211_IFTYPE_MESH_POINT &&
772 vif->type != NL80211_IFTYPE_ADHOC)
773 return;
774
775 skb = ieee80211_beacon_get(hw, vif);
776 if (skb == NULL)
777 return;
778 info = IEEE80211_SKB_CB(skb);
779
780 mac80211_hwsim_monitor_rx(hw, skb);
781
782 /* wmediumd mode check */
783 _pid = wmediumd_pid;
784
785 if (_pid)
786 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
787
788 mac80211_hwsim_tx_frame_no_nl(hw, skb);
789 dev_kfree_skb(skb);
790 }
791
792
793 static void mac80211_hwsim_beacon(unsigned long arg)
794 {
795 struct ieee80211_hw *hw = (struct ieee80211_hw *) arg;
796 struct mac80211_hwsim_data *data = hw->priv;
797
798 if (!data->started)
799 return;
800
801 ieee80211_iterate_active_interfaces_atomic(
802 hw, mac80211_hwsim_beacon_tx, hw);
803
804 data->beacon_timer.expires = jiffies + data->beacon_int;
805 add_timer(&data->beacon_timer);
806 }
807
808 static const char *hwsim_chantypes[] = {
809 [NL80211_CHAN_NO_HT] = "noht",
810 [NL80211_CHAN_HT20] = "ht20",
811 [NL80211_CHAN_HT40MINUS] = "ht40-",
812 [NL80211_CHAN_HT40PLUS] = "ht40+",
813 };
814
815 static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
816 {
817 struct mac80211_hwsim_data *data = hw->priv;
818 struct ieee80211_conf *conf = &hw->conf;
819 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
820 [IEEE80211_SMPS_AUTOMATIC] = "auto",
821 [IEEE80211_SMPS_OFF] = "off",
822 [IEEE80211_SMPS_STATIC] = "static",
823 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
824 };
825
826 wiphy_debug(hw->wiphy,
827 "%s (freq=%d/%s idle=%d ps=%d smps=%s)\n",
828 __func__,
829 conf->channel->center_freq,
830 hwsim_chantypes[conf->channel_type],
831 !!(conf->flags & IEEE80211_CONF_IDLE),
832 !!(conf->flags & IEEE80211_CONF_PS),
833 smps_modes[conf->smps_mode]);
834
835 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
836
837 data->channel = conf->channel;
838 data->power_level = conf->power_level;
839 if (!data->started || !data->beacon_int)
840 del_timer(&data->beacon_timer);
841 else
842 mod_timer(&data->beacon_timer, jiffies + data->beacon_int);
843
844 return 0;
845 }
846
847
848 static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
849 unsigned int changed_flags,
850 unsigned int *total_flags,u64 multicast)
851 {
852 struct mac80211_hwsim_data *data = hw->priv;
853
854 wiphy_debug(hw->wiphy, "%s\n", __func__);
855
856 data->rx_filter = 0;
857 if (*total_flags & FIF_PROMISC_IN_BSS)
858 data->rx_filter |= FIF_PROMISC_IN_BSS;
859 if (*total_flags & FIF_ALLMULTI)
860 data->rx_filter |= FIF_ALLMULTI;
861
862 *total_flags = data->rx_filter;
863 }
864
865 static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
866 struct ieee80211_vif *vif,
867 struct ieee80211_bss_conf *info,
868 u32 changed)
869 {
870 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
871 struct mac80211_hwsim_data *data = hw->priv;
872
873 hwsim_check_magic(vif);
874
875 wiphy_debug(hw->wiphy, "%s(changed=0x%x)\n", __func__, changed);
876
877 if (changed & BSS_CHANGED_BSSID) {
878 wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
879 __func__, info->bssid);
880 memcpy(vp->bssid, info->bssid, ETH_ALEN);
881 }
882
883 if (changed & BSS_CHANGED_ASSOC) {
884 wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
885 info->assoc, info->aid);
886 vp->assoc = info->assoc;
887 vp->aid = info->aid;
888 }
889
890 if (changed & BSS_CHANGED_BEACON_INT) {
891 wiphy_debug(hw->wiphy, " BCNINT: %d\n", info->beacon_int);
892 data->beacon_int = 1024 * info->beacon_int / 1000 * HZ / 1000;
893 if (WARN_ON(!data->beacon_int))
894 data->beacon_int = 1;
895 if (data->started)
896 mod_timer(&data->beacon_timer,
897 jiffies + data->beacon_int);
898 }
899
900 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
901 wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
902 info->use_cts_prot);
903 }
904
905 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
906 wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
907 info->use_short_preamble);
908 }
909
910 if (changed & BSS_CHANGED_ERP_SLOT) {
911 wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
912 }
913
914 if (changed & BSS_CHANGED_HT) {
915 wiphy_debug(hw->wiphy, " HT: op_mode=0x%x, chantype=%s\n",
916 info->ht_operation_mode,
917 hwsim_chantypes[info->channel_type]);
918 }
919
920 if (changed & BSS_CHANGED_BASIC_RATES) {
921 wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
922 (unsigned long long) info->basic_rates);
923 }
924 }
925
926 static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
927 struct ieee80211_vif *vif,
928 struct ieee80211_sta *sta)
929 {
930 hwsim_check_magic(vif);
931 hwsim_set_sta_magic(sta);
932
933 return 0;
934 }
935
936 static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
937 struct ieee80211_vif *vif,
938 struct ieee80211_sta *sta)
939 {
940 hwsim_check_magic(vif);
941 hwsim_clear_sta_magic(sta);
942
943 return 0;
944 }
945
946 static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
947 struct ieee80211_vif *vif,
948 enum sta_notify_cmd cmd,
949 struct ieee80211_sta *sta)
950 {
951 hwsim_check_magic(vif);
952
953 switch (cmd) {
954 case STA_NOTIFY_SLEEP:
955 case STA_NOTIFY_AWAKE:
956 /* TODO: make good use of these flags */
957 break;
958 default:
959 WARN(1, "Invalid sta notify: %d\n", cmd);
960 break;
961 }
962 }
963
964 static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
965 struct ieee80211_sta *sta,
966 bool set)
967 {
968 hwsim_check_sta_magic(sta);
969 return 0;
970 }
971
972 static int mac80211_hwsim_conf_tx(
973 struct ieee80211_hw *hw,
974 struct ieee80211_vif *vif, u16 queue,
975 const struct ieee80211_tx_queue_params *params)
976 {
977 wiphy_debug(hw->wiphy,
978 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
979 __func__, queue,
980 params->txop, params->cw_min,
981 params->cw_max, params->aifs);
982 return 0;
983 }
984
985 static int mac80211_hwsim_get_survey(
986 struct ieee80211_hw *hw, int idx,
987 struct survey_info *survey)
988 {
989 struct ieee80211_conf *conf = &hw->conf;
990
991 wiphy_debug(hw->wiphy, "%s (idx=%d)\n", __func__, idx);
992
993 if (idx != 0)
994 return -ENOENT;
995
996 /* Current channel */
997 survey->channel = conf->channel;
998
999 /*
1000 * Magically conjured noise level --- this is only ok for simulated hardware.
1001 *
1002 * A real driver which cannot determine the real channel noise MUST NOT
1003 * report any noise, especially not a magically conjured one :-)
1004 */
1005 survey->filled = SURVEY_INFO_NOISE_DBM;
1006 survey->noise = -92;
1007
1008 return 0;
1009 }
1010
1011 #ifdef CONFIG_NL80211_TESTMODE
1012 /*
1013 * This section contains example code for using netlink
1014 * attributes with the testmode command in nl80211.
1015 */
1016
1017 /* These enums need to be kept in sync with userspace */
1018 enum hwsim_testmode_attr {
1019 __HWSIM_TM_ATTR_INVALID = 0,
1020 HWSIM_TM_ATTR_CMD = 1,
1021 HWSIM_TM_ATTR_PS = 2,
1022
1023 /* keep last */
1024 __HWSIM_TM_ATTR_AFTER_LAST,
1025 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1026 };
1027
1028 enum hwsim_testmode_cmd {
1029 HWSIM_TM_CMD_SET_PS = 0,
1030 HWSIM_TM_CMD_GET_PS = 1,
1031 };
1032
1033 static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1034 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1035 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1036 };
1037
1038 static int hwsim_fops_ps_write(void *dat, u64 val);
1039
1040 static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
1041 void *data, int len)
1042 {
1043 struct mac80211_hwsim_data *hwsim = hw->priv;
1044 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1045 struct sk_buff *skb;
1046 int err, ps;
1047
1048 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
1049 hwsim_testmode_policy);
1050 if (err)
1051 return err;
1052
1053 if (!tb[HWSIM_TM_ATTR_CMD])
1054 return -EINVAL;
1055
1056 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1057 case HWSIM_TM_CMD_SET_PS:
1058 if (!tb[HWSIM_TM_ATTR_PS])
1059 return -EINVAL;
1060 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1061 return hwsim_fops_ps_write(hwsim, ps);
1062 case HWSIM_TM_CMD_GET_PS:
1063 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1064 nla_total_size(sizeof(u32)));
1065 if (!skb)
1066 return -ENOMEM;
1067 NLA_PUT_U32(skb, HWSIM_TM_ATTR_PS, hwsim->ps);
1068 return cfg80211_testmode_reply(skb);
1069 default:
1070 return -EOPNOTSUPP;
1071 }
1072
1073 nla_put_failure:
1074 kfree_skb(skb);
1075 return -ENOBUFS;
1076 }
1077 #endif
1078
1079 static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1080 struct ieee80211_vif *vif,
1081 enum ieee80211_ampdu_mlme_action action,
1082 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
1083 u8 buf_size)
1084 {
1085 switch (action) {
1086 case IEEE80211_AMPDU_TX_START:
1087 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1088 break;
1089 case IEEE80211_AMPDU_TX_STOP:
1090 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1091 break;
1092 case IEEE80211_AMPDU_TX_OPERATIONAL:
1093 break;
1094 case IEEE80211_AMPDU_RX_START:
1095 case IEEE80211_AMPDU_RX_STOP:
1096 break;
1097 default:
1098 return -EOPNOTSUPP;
1099 }
1100
1101 return 0;
1102 }
1103
1104 static void mac80211_hwsim_flush(struct ieee80211_hw *hw, bool drop)
1105 {
1106 /* Not implemented, queues only on kernel side */
1107 }
1108
1109 struct hw_scan_done {
1110 struct delayed_work w;
1111 struct ieee80211_hw *hw;
1112 };
1113
1114 static void hw_scan_done(struct work_struct *work)
1115 {
1116 struct hw_scan_done *hsd =
1117 container_of(work, struct hw_scan_done, w.work);
1118
1119 ieee80211_scan_completed(hsd->hw, false);
1120 kfree(hsd);
1121 }
1122
1123 static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
1124 struct ieee80211_vif *vif,
1125 struct cfg80211_scan_request *req)
1126 {
1127 struct hw_scan_done *hsd = kzalloc(sizeof(*hsd), GFP_KERNEL);
1128 int i;
1129
1130 if (!hsd)
1131 return -ENOMEM;
1132
1133 hsd->hw = hw;
1134 INIT_DELAYED_WORK(&hsd->w, hw_scan_done);
1135
1136 printk(KERN_DEBUG "hwsim hw_scan request\n");
1137 for (i = 0; i < req->n_channels; i++)
1138 printk(KERN_DEBUG "hwsim hw_scan freq %d\n",
1139 req->channels[i]->center_freq);
1140 print_hex_dump(KERN_DEBUG, "scan IEs: ", DUMP_PREFIX_OFFSET,
1141 16, 1, req->ie, req->ie_len, 1);
1142
1143 ieee80211_queue_delayed_work(hw, &hsd->w, 2 * HZ);
1144
1145 return 0;
1146 }
1147
1148 static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw)
1149 {
1150 struct mac80211_hwsim_data *hwsim = hw->priv;
1151
1152 mutex_lock(&hwsim->mutex);
1153
1154 if (hwsim->scanning) {
1155 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
1156 goto out;
1157 }
1158
1159 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
1160 hwsim->scanning = true;
1161
1162 out:
1163 mutex_unlock(&hwsim->mutex);
1164 }
1165
1166 static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw)
1167 {
1168 struct mac80211_hwsim_data *hwsim = hw->priv;
1169
1170 mutex_lock(&hwsim->mutex);
1171
1172 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
1173 hwsim->scanning = false;
1174
1175 mutex_unlock(&hwsim->mutex);
1176 }
1177
1178 static struct ieee80211_ops mac80211_hwsim_ops =
1179 {
1180 .tx = mac80211_hwsim_tx,
1181 .start = mac80211_hwsim_start,
1182 .stop = mac80211_hwsim_stop,
1183 .add_interface = mac80211_hwsim_add_interface,
1184 .change_interface = mac80211_hwsim_change_interface,
1185 .remove_interface = mac80211_hwsim_remove_interface,
1186 .config = mac80211_hwsim_config,
1187 .configure_filter = mac80211_hwsim_configure_filter,
1188 .bss_info_changed = mac80211_hwsim_bss_info_changed,
1189 .sta_add = mac80211_hwsim_sta_add,
1190 .sta_remove = mac80211_hwsim_sta_remove,
1191 .sta_notify = mac80211_hwsim_sta_notify,
1192 .set_tim = mac80211_hwsim_set_tim,
1193 .conf_tx = mac80211_hwsim_conf_tx,
1194 .get_survey = mac80211_hwsim_get_survey,
1195 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
1196 .ampdu_action = mac80211_hwsim_ampdu_action,
1197 .sw_scan_start = mac80211_hwsim_sw_scan,
1198 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
1199 .flush = mac80211_hwsim_flush,
1200 };
1201
1202
1203 static void mac80211_hwsim_free(void)
1204 {
1205 struct list_head tmplist, *i, *tmp;
1206 struct mac80211_hwsim_data *data, *tmpdata;
1207
1208 INIT_LIST_HEAD(&tmplist);
1209
1210 spin_lock_bh(&hwsim_radio_lock);
1211 list_for_each_safe(i, tmp, &hwsim_radios)
1212 list_move(i, &tmplist);
1213 spin_unlock_bh(&hwsim_radio_lock);
1214
1215 list_for_each_entry_safe(data, tmpdata, &tmplist, list) {
1216 debugfs_remove(data->debugfs_group);
1217 debugfs_remove(data->debugfs_ps);
1218 debugfs_remove(data->debugfs);
1219 ieee80211_unregister_hw(data->hw);
1220 device_unregister(data->dev);
1221 ieee80211_free_hw(data->hw);
1222 }
1223 class_destroy(hwsim_class);
1224 }
1225
1226
1227 static struct device_driver mac80211_hwsim_driver = {
1228 .name = "mac80211_hwsim"
1229 };
1230
1231 static const struct net_device_ops hwsim_netdev_ops = {
1232 .ndo_start_xmit = hwsim_mon_xmit,
1233 .ndo_change_mtu = eth_change_mtu,
1234 .ndo_set_mac_address = eth_mac_addr,
1235 .ndo_validate_addr = eth_validate_addr,
1236 };
1237
1238 static void hwsim_mon_setup(struct net_device *dev)
1239 {
1240 dev->netdev_ops = &hwsim_netdev_ops;
1241 dev->destructor = free_netdev;
1242 ether_setup(dev);
1243 dev->tx_queue_len = 0;
1244 dev->type = ARPHRD_IEEE80211_RADIOTAP;
1245 memset(dev->dev_addr, 0, ETH_ALEN);
1246 dev->dev_addr[0] = 0x12;
1247 }
1248
1249
1250 static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
1251 {
1252 struct mac80211_hwsim_data *data = dat;
1253 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1254 struct sk_buff *skb;
1255 struct ieee80211_pspoll *pspoll;
1256 int _pid;
1257
1258 if (!vp->assoc)
1259 return;
1260
1261 wiphy_debug(data->hw->wiphy,
1262 "%s: send PS-Poll to %pM for aid %d\n",
1263 __func__, vp->bssid, vp->aid);
1264
1265 skb = dev_alloc_skb(sizeof(*pspoll));
1266 if (!skb)
1267 return;
1268 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
1269 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
1270 IEEE80211_STYPE_PSPOLL |
1271 IEEE80211_FCTL_PM);
1272 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
1273 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
1274 memcpy(pspoll->ta, mac, ETH_ALEN);
1275
1276 /* wmediumd mode check */
1277 _pid = wmediumd_pid;
1278
1279 if (_pid)
1280 return mac80211_hwsim_tx_frame_nl(data->hw, skb, _pid);
1281
1282 if (!mac80211_hwsim_tx_frame_no_nl(data->hw, skb))
1283 printk(KERN_DEBUG "%s: PS-poll frame not ack'ed\n", __func__);
1284 dev_kfree_skb(skb);
1285 }
1286
1287
1288 static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
1289 struct ieee80211_vif *vif, int ps)
1290 {
1291 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1292 struct sk_buff *skb;
1293 struct ieee80211_hdr *hdr;
1294 int _pid;
1295
1296 if (!vp->assoc)
1297 return;
1298
1299 wiphy_debug(data->hw->wiphy,
1300 "%s: send data::nullfunc to %pM ps=%d\n",
1301 __func__, vp->bssid, ps);
1302
1303 skb = dev_alloc_skb(sizeof(*hdr));
1304 if (!skb)
1305 return;
1306 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
1307 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1308 IEEE80211_STYPE_NULLFUNC |
1309 (ps ? IEEE80211_FCTL_PM : 0));
1310 hdr->duration_id = cpu_to_le16(0);
1311 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
1312 memcpy(hdr->addr2, mac, ETH_ALEN);
1313 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
1314
1315 /* wmediumd mode check */
1316 _pid = wmediumd_pid;
1317
1318 if (_pid)
1319 return mac80211_hwsim_tx_frame_nl(data->hw, skb, _pid);
1320
1321 if (!mac80211_hwsim_tx_frame_no_nl(data->hw, skb))
1322 printk(KERN_DEBUG "%s: nullfunc frame not ack'ed\n", __func__);
1323 dev_kfree_skb(skb);
1324 }
1325
1326
1327 static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
1328 struct ieee80211_vif *vif)
1329 {
1330 struct mac80211_hwsim_data *data = dat;
1331 hwsim_send_nullfunc(data, mac, vif, 1);
1332 }
1333
1334
1335 static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
1336 struct ieee80211_vif *vif)
1337 {
1338 struct mac80211_hwsim_data *data = dat;
1339 hwsim_send_nullfunc(data, mac, vif, 0);
1340 }
1341
1342
1343 static int hwsim_fops_ps_read(void *dat, u64 *val)
1344 {
1345 struct mac80211_hwsim_data *data = dat;
1346 *val = data->ps;
1347 return 0;
1348 }
1349
1350 static int hwsim_fops_ps_write(void *dat, u64 val)
1351 {
1352 struct mac80211_hwsim_data *data = dat;
1353 enum ps_mode old_ps;
1354
1355 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
1356 val != PS_MANUAL_POLL)
1357 return -EINVAL;
1358
1359 old_ps = data->ps;
1360 data->ps = val;
1361
1362 if (val == PS_MANUAL_POLL) {
1363 ieee80211_iterate_active_interfaces(data->hw,
1364 hwsim_send_ps_poll, data);
1365 data->ps_poll_pending = true;
1366 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
1367 ieee80211_iterate_active_interfaces(data->hw,
1368 hwsim_send_nullfunc_ps,
1369 data);
1370 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
1371 ieee80211_iterate_active_interfaces(data->hw,
1372 hwsim_send_nullfunc_no_ps,
1373 data);
1374 }
1375
1376 return 0;
1377 }
1378
1379 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
1380 "%llu\n");
1381
1382
1383 static int hwsim_fops_group_read(void *dat, u64 *val)
1384 {
1385 struct mac80211_hwsim_data *data = dat;
1386 *val = data->group;
1387 return 0;
1388 }
1389
1390 static int hwsim_fops_group_write(void *dat, u64 val)
1391 {
1392 struct mac80211_hwsim_data *data = dat;
1393 data->group = val;
1394 return 0;
1395 }
1396
1397 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
1398 hwsim_fops_group_read, hwsim_fops_group_write,
1399 "%llx\n");
1400
1401 struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(
1402 struct mac_address *addr)
1403 {
1404 struct mac80211_hwsim_data *data;
1405 bool _found = false;
1406
1407 spin_lock_bh(&hwsim_radio_lock);
1408 list_for_each_entry(data, &hwsim_radios, list) {
1409 if (memcmp(data->addresses[1].addr, addr,
1410 sizeof(struct mac_address)) == 0) {
1411 _found = true;
1412 break;
1413 }
1414 }
1415 spin_unlock_bh(&hwsim_radio_lock);
1416
1417 if (!_found)
1418 return NULL;
1419
1420 return data;
1421 }
1422
1423 static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
1424 struct genl_info *info)
1425 {
1426
1427 struct ieee80211_hdr *hdr;
1428 struct mac80211_hwsim_data *data2;
1429 struct ieee80211_tx_info *txi;
1430 struct hwsim_tx_rate *tx_attempts;
1431 struct sk_buff __user *ret_skb;
1432 struct sk_buff *skb, *tmp;
1433 struct mac_address *src;
1434 unsigned int hwsim_flags;
1435
1436 int i;
1437 bool found = false;
1438
1439 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
1440 !info->attrs[HWSIM_ATTR_FLAGS] ||
1441 !info->attrs[HWSIM_ATTR_COOKIE] ||
1442 !info->attrs[HWSIM_ATTR_TX_INFO])
1443 goto out;
1444
1445 src = (struct mac_address *)nla_data(
1446 info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
1447 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
1448
1449 ret_skb = (struct sk_buff __user *)
1450 (unsigned long) nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
1451
1452 data2 = get_hwsim_data_ref_from_addr(src);
1453
1454 if (data2 == NULL)
1455 goto out;
1456
1457 /* look for the skb matching the cookie passed back from user */
1458 skb_queue_walk_safe(&data2->pending, skb, tmp) {
1459 if (skb == ret_skb) {
1460 skb_unlink(skb, &data2->pending);
1461 found = true;
1462 break;
1463 }
1464 }
1465
1466 /* not found */
1467 if (!found)
1468 goto out;
1469
1470 /* Tx info received because the frame was broadcasted on user space,
1471 so we get all the necessary info: tx attempts and skb control buff */
1472
1473 tx_attempts = (struct hwsim_tx_rate *)nla_data(
1474 info->attrs[HWSIM_ATTR_TX_INFO]);
1475
1476 /* now send back TX status */
1477 txi = IEEE80211_SKB_CB(skb);
1478
1479 if (txi->control.vif)
1480 hwsim_check_magic(txi->control.vif);
1481 if (txi->control.sta)
1482 hwsim_check_sta_magic(txi->control.sta);
1483
1484 ieee80211_tx_info_clear_status(txi);
1485
1486 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
1487 txi->status.rates[i].idx = tx_attempts[i].idx;
1488 txi->status.rates[i].count = tx_attempts[i].count;
1489 /*txi->status.rates[i].flags = 0;*/
1490 }
1491
1492 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
1493
1494 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
1495 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
1496 if (skb->len >= 16) {
1497 hdr = (struct ieee80211_hdr *) skb->data;
1498 mac80211_hwsim_monitor_ack(data2->hw, hdr->addr2);
1499 }
1500 }
1501 ieee80211_tx_status_irqsafe(data2->hw, skb);
1502 return 0;
1503 out:
1504 return -EINVAL;
1505
1506 }
1507
1508 static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
1509 struct genl_info *info)
1510 {
1511
1512 struct mac80211_hwsim_data *data2;
1513 struct ieee80211_rx_status rx_status;
1514 struct mac_address *dst;
1515 int frame_data_len;
1516 char *frame_data;
1517 struct sk_buff *skb = NULL;
1518
1519 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
1520 !info->attrs[HWSIM_ATTR_FRAME] ||
1521 !info->attrs[HWSIM_ATTR_RX_RATE] ||
1522 !info->attrs[HWSIM_ATTR_SIGNAL])
1523 goto out;
1524
1525 dst = (struct mac_address *)nla_data(
1526 info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
1527
1528 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
1529 frame_data = (char *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
1530
1531 /* Allocate new skb here */
1532 skb = alloc_skb(frame_data_len, GFP_KERNEL);
1533 if (skb == NULL)
1534 goto err;
1535
1536 if (frame_data_len <= IEEE80211_MAX_DATA_LEN) {
1537 /* Copy the data */
1538 memcpy(skb_put(skb, frame_data_len), frame_data,
1539 frame_data_len);
1540 } else
1541 goto err;
1542
1543 data2 = get_hwsim_data_ref_from_addr(dst);
1544
1545 if (data2 == NULL)
1546 goto out;
1547
1548 /* check if radio is configured properly */
1549
1550 if (data2->idle || !data2->started || !data2->channel)
1551 goto out;
1552
1553 /*A frame is received from user space*/
1554 memset(&rx_status, 0, sizeof(rx_status));
1555 rx_status.freq = data2->channel->center_freq;
1556 rx_status.band = data2->channel->band;
1557 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
1558 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
1559
1560 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
1561 ieee80211_rx_irqsafe(data2->hw, skb);
1562
1563 return 0;
1564 err:
1565 printk(KERN_DEBUG "mac80211_hwsim: error occured in %s\n", __func__);
1566 goto out;
1567 out:
1568 dev_kfree_skb(skb);
1569 return -EINVAL;
1570 }
1571
1572 static int hwsim_register_received_nl(struct sk_buff *skb_2,
1573 struct genl_info *info)
1574 {
1575 if (info == NULL)
1576 goto out;
1577
1578 wmediumd_pid = info->snd_pid;
1579
1580 printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
1581 "switching to wmediumd mode with pid %d\n", info->snd_pid);
1582
1583 return 0;
1584 out:
1585 printk(KERN_DEBUG "mac80211_hwsim: error occured in %s\n", __func__);
1586 return -EINVAL;
1587 }
1588
1589 /* Generic Netlink operations array */
1590 static struct genl_ops hwsim_ops[] = {
1591 {
1592 .cmd = HWSIM_CMD_REGISTER,
1593 .policy = hwsim_genl_policy,
1594 .doit = hwsim_register_received_nl,
1595 .flags = GENL_ADMIN_PERM,
1596 },
1597 {
1598 .cmd = HWSIM_CMD_FRAME,
1599 .policy = hwsim_genl_policy,
1600 .doit = hwsim_cloned_frame_received_nl,
1601 },
1602 {
1603 .cmd = HWSIM_CMD_TX_INFO_FRAME,
1604 .policy = hwsim_genl_policy,
1605 .doit = hwsim_tx_info_frame_received_nl,
1606 },
1607 };
1608
1609 static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
1610 unsigned long state,
1611 void *_notify)
1612 {
1613 struct netlink_notify *notify = _notify;
1614
1615 if (state != NETLINK_URELEASE)
1616 return NOTIFY_DONE;
1617
1618 if (notify->pid == wmediumd_pid) {
1619 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
1620 " socket, switching to perfect channel medium\n");
1621 wmediumd_pid = 0;
1622 }
1623 return NOTIFY_DONE;
1624
1625 }
1626
1627 static struct notifier_block hwsim_netlink_notifier = {
1628 .notifier_call = mac80211_hwsim_netlink_notify,
1629 };
1630
1631 static int hwsim_init_netlink(void)
1632 {
1633 int rc;
1634 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
1635
1636 wmediumd_pid = 0;
1637
1638 rc = genl_register_family_with_ops(&hwsim_genl_family,
1639 hwsim_ops, ARRAY_SIZE(hwsim_ops));
1640 if (rc)
1641 goto failure;
1642
1643 rc = netlink_register_notifier(&hwsim_netlink_notifier);
1644 if (rc)
1645 goto failure;
1646
1647 return 0;
1648
1649 failure:
1650 printk(KERN_DEBUG "mac80211_hwsim: error occured in %s\n", __func__);
1651 return -EINVAL;
1652 }
1653
1654 static void hwsim_exit_netlink(void)
1655 {
1656 int ret;
1657
1658 printk(KERN_INFO "mac80211_hwsim: closing netlink\n");
1659 /* unregister the notifier */
1660 netlink_unregister_notifier(&hwsim_netlink_notifier);
1661 /* unregister the family */
1662 ret = genl_unregister_family(&hwsim_genl_family);
1663 if (ret)
1664 printk(KERN_DEBUG "mac80211_hwsim: "
1665 "unregister family %i\n", ret);
1666 }
1667
1668 static int __init init_mac80211_hwsim(void)
1669 {
1670 int i, err = 0;
1671 u8 addr[ETH_ALEN];
1672 struct mac80211_hwsim_data *data;
1673 struct ieee80211_hw *hw;
1674 enum ieee80211_band band;
1675
1676 if (radios < 1 || radios > 100)
1677 return -EINVAL;
1678
1679 if (fake_hw_scan) {
1680 mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan;
1681 mac80211_hwsim_ops.sw_scan_start = NULL;
1682 mac80211_hwsim_ops.sw_scan_complete = NULL;
1683 }
1684
1685 spin_lock_init(&hwsim_radio_lock);
1686 INIT_LIST_HEAD(&hwsim_radios);
1687
1688 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
1689 if (IS_ERR(hwsim_class))
1690 return PTR_ERR(hwsim_class);
1691
1692 memset(addr, 0, ETH_ALEN);
1693 addr[0] = 0x02;
1694
1695 for (i = 0; i < radios; i++) {
1696 printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
1697 i);
1698 hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);
1699 if (!hw) {
1700 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
1701 "failed\n");
1702 err = -ENOMEM;
1703 goto failed;
1704 }
1705 data = hw->priv;
1706 data->hw = hw;
1707
1708 data->dev = device_create(hwsim_class, NULL, 0, hw,
1709 "hwsim%d", i);
1710 if (IS_ERR(data->dev)) {
1711 printk(KERN_DEBUG
1712 "mac80211_hwsim: device_create "
1713 "failed (%ld)\n", PTR_ERR(data->dev));
1714 err = -ENOMEM;
1715 goto failed_drvdata;
1716 }
1717 data->dev->driver = &mac80211_hwsim_driver;
1718 skb_queue_head_init(&data->pending);
1719
1720 SET_IEEE80211_DEV(hw, data->dev);
1721 addr[3] = i >> 8;
1722 addr[4] = i;
1723 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
1724 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
1725 data->addresses[1].addr[0] |= 0x40;
1726 hw->wiphy->n_addresses = 2;
1727 hw->wiphy->addresses = data->addresses;
1728
1729 if (fake_hw_scan) {
1730 hw->wiphy->max_scan_ssids = 255;
1731 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
1732 }
1733
1734 hw->channel_change_time = 1;
1735 hw->queues = 4;
1736 hw->wiphy->interface_modes =
1737 BIT(NL80211_IFTYPE_STATION) |
1738 BIT(NL80211_IFTYPE_AP) |
1739 BIT(NL80211_IFTYPE_P2P_CLIENT) |
1740 BIT(NL80211_IFTYPE_P2P_GO) |
1741 BIT(NL80211_IFTYPE_ADHOC) |
1742 BIT(NL80211_IFTYPE_MESH_POINT);
1743
1744 hw->flags = IEEE80211_HW_MFP_CAPABLE |
1745 IEEE80211_HW_SIGNAL_DBM |
1746 IEEE80211_HW_SUPPORTS_STATIC_SMPS |
1747 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
1748 IEEE80211_HW_AMPDU_AGGREGATION;
1749
1750 /* ask mac80211 to reserve space for magic */
1751 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
1752 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
1753
1754 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
1755 sizeof(hwsim_channels_2ghz));
1756 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
1757 sizeof(hwsim_channels_5ghz));
1758 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
1759
1760 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
1761 struct ieee80211_supported_band *sband = &data->bands[band];
1762 switch (band) {
1763 case IEEE80211_BAND_2GHZ:
1764 sband->channels = data->channels_2ghz;
1765 sband->n_channels =
1766 ARRAY_SIZE(hwsim_channels_2ghz);
1767 sband->bitrates = data->rates;
1768 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
1769 break;
1770 case IEEE80211_BAND_5GHZ:
1771 sband->channels = data->channels_5ghz;
1772 sband->n_channels =
1773 ARRAY_SIZE(hwsim_channels_5ghz);
1774 sband->bitrates = data->rates + 4;
1775 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
1776 break;
1777 default:
1778 break;
1779 }
1780
1781 sband->ht_cap.ht_supported = true;
1782 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
1783 IEEE80211_HT_CAP_GRN_FLD |
1784 IEEE80211_HT_CAP_SGI_40 |
1785 IEEE80211_HT_CAP_DSSSCCK40;
1786 sband->ht_cap.ampdu_factor = 0x3;
1787 sband->ht_cap.ampdu_density = 0x6;
1788 memset(&sband->ht_cap.mcs, 0,
1789 sizeof(sband->ht_cap.mcs));
1790 sband->ht_cap.mcs.rx_mask[0] = 0xff;
1791 sband->ht_cap.mcs.rx_mask[1] = 0xff;
1792 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1793
1794 hw->wiphy->bands[band] = sband;
1795 }
1796 /* By default all radios are belonging to the first group */
1797 data->group = 1;
1798 mutex_init(&data->mutex);
1799
1800 /* Enable frame retransmissions for lossy channels */
1801 hw->max_rates = 4;
1802 hw->max_rate_tries = 11;
1803
1804 /* Work to be done prior to ieee80211_register_hw() */
1805 switch (regtest) {
1806 case HWSIM_REGTEST_DISABLED:
1807 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
1808 case HWSIM_REGTEST_DRIVER_REG_ALL:
1809 case HWSIM_REGTEST_DIFF_COUNTRY:
1810 /*
1811 * Nothing to be done for driver regulatory domain
1812 * hints prior to ieee80211_register_hw()
1813 */
1814 break;
1815 case HWSIM_REGTEST_WORLD_ROAM:
1816 if (i == 0) {
1817 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1818 wiphy_apply_custom_regulatory(hw->wiphy,
1819 &hwsim_world_regdom_custom_01);
1820 }
1821 break;
1822 case HWSIM_REGTEST_CUSTOM_WORLD:
1823 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1824 wiphy_apply_custom_regulatory(hw->wiphy,
1825 &hwsim_world_regdom_custom_01);
1826 break;
1827 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1828 if (i == 0) {
1829 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1830 wiphy_apply_custom_regulatory(hw->wiphy,
1831 &hwsim_world_regdom_custom_01);
1832 } else if (i == 1) {
1833 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1834 wiphy_apply_custom_regulatory(hw->wiphy,
1835 &hwsim_world_regdom_custom_02);
1836 }
1837 break;
1838 case HWSIM_REGTEST_STRICT_ALL:
1839 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
1840 break;
1841 case HWSIM_REGTEST_STRICT_FOLLOW:
1842 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1843 if (i == 0)
1844 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
1845 break;
1846 case HWSIM_REGTEST_ALL:
1847 if (i == 0) {
1848 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1849 wiphy_apply_custom_regulatory(hw->wiphy,
1850 &hwsim_world_regdom_custom_01);
1851 } else if (i == 1) {
1852 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1853 wiphy_apply_custom_regulatory(hw->wiphy,
1854 &hwsim_world_regdom_custom_02);
1855 } else if (i == 4)
1856 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
1857 break;
1858 default:
1859 break;
1860 }
1861
1862 /* give the regulatory workqueue a chance to run */
1863 if (regtest)
1864 schedule_timeout_interruptible(1);
1865 err = ieee80211_register_hw(hw);
1866 if (err < 0) {
1867 printk(KERN_DEBUG "mac80211_hwsim: "
1868 "ieee80211_register_hw failed (%d)\n", err);
1869 goto failed_hw;
1870 }
1871
1872 /* Work to be done after to ieee80211_register_hw() */
1873 switch (regtest) {
1874 case HWSIM_REGTEST_WORLD_ROAM:
1875 case HWSIM_REGTEST_DISABLED:
1876 break;
1877 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
1878 if (!i)
1879 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1880 break;
1881 case HWSIM_REGTEST_DRIVER_REG_ALL:
1882 case HWSIM_REGTEST_STRICT_ALL:
1883 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1884 break;
1885 case HWSIM_REGTEST_DIFF_COUNTRY:
1886 if (i < ARRAY_SIZE(hwsim_alpha2s))
1887 regulatory_hint(hw->wiphy, hwsim_alpha2s[i]);
1888 break;
1889 case HWSIM_REGTEST_CUSTOM_WORLD:
1890 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1891 /*
1892 * Nothing to be done for custom world regulatory
1893 * domains after to ieee80211_register_hw
1894 */
1895 break;
1896 case HWSIM_REGTEST_STRICT_FOLLOW:
1897 if (i == 0)
1898 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1899 break;
1900 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1901 if (i == 0)
1902 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1903 else if (i == 1)
1904 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1905 break;
1906 case HWSIM_REGTEST_ALL:
1907 if (i == 2)
1908 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1909 else if (i == 3)
1910 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1911 else if (i == 4)
1912 regulatory_hint(hw->wiphy, hwsim_alpha2s[2]);
1913 break;
1914 default:
1915 break;
1916 }
1917
1918 wiphy_debug(hw->wiphy, "hwaddr %pm registered\n",
1919 hw->wiphy->perm_addr);
1920
1921 data->debugfs = debugfs_create_dir("hwsim",
1922 hw->wiphy->debugfsdir);
1923 data->debugfs_ps = debugfs_create_file("ps", 0666,
1924 data->debugfs, data,
1925 &hwsim_fops_ps);
1926 data->debugfs_group = debugfs_create_file("group", 0666,
1927 data->debugfs, data,
1928 &hwsim_fops_group);
1929
1930 setup_timer(&data->beacon_timer, mac80211_hwsim_beacon,
1931 (unsigned long) hw);
1932
1933 list_add_tail(&data->list, &hwsim_radios);
1934 }
1935
1936 hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
1937 if (hwsim_mon == NULL)
1938 goto failed;
1939
1940 rtnl_lock();
1941
1942 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
1943 if (err < 0)
1944 goto failed_mon;
1945
1946
1947 err = register_netdevice(hwsim_mon);
1948 if (err < 0)
1949 goto failed_mon;
1950
1951 rtnl_unlock();
1952
1953 err = hwsim_init_netlink();
1954 if (err < 0)
1955 goto failed_nl;
1956
1957 return 0;
1958
1959 failed_nl:
1960 printk(KERN_DEBUG "mac_80211_hwsim: failed initializing netlink\n");
1961 return err;
1962
1963 failed_mon:
1964 rtnl_unlock();
1965 free_netdev(hwsim_mon);
1966 mac80211_hwsim_free();
1967 return err;
1968
1969 failed_hw:
1970 device_unregister(data->dev);
1971 failed_drvdata:
1972 ieee80211_free_hw(hw);
1973 failed:
1974 mac80211_hwsim_free();
1975 return err;
1976 }
1977
1978
1979 static void __exit exit_mac80211_hwsim(void)
1980 {
1981 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
1982
1983 hwsim_exit_netlink();
1984
1985 mac80211_hwsim_free();
1986 unregister_netdev(hwsim_mon);
1987 }
1988
1989
1990 module_init(init_mac80211_hwsim);
1991 module_exit(exit_mac80211_hwsim);
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