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drivers/net: Add module.h to drivers who were implicitly using it
[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 <net/genetlink.h>
31 #include "mac80211_hwsim.h"
32
33 #define WARN_QUEUE 100
34 #define MAX_QUEUE 200
35
36 MODULE_AUTHOR("Jouni Malinen");
37 MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
38 MODULE_LICENSE("GPL");
39
40 int wmediumd_pid;
41 static int radios = 2;
42 module_param(radios, int, 0444);
43 MODULE_PARM_DESC(radios, "Number of simulated radios");
44
45 static bool fake_hw_scan;
46 module_param(fake_hw_scan, bool, 0444);
47 MODULE_PARM_DESC(fake_hw_scan, "Install fake (no-op) hw-scan handler");
48
49 /**
50 * enum hwsim_regtest - the type of regulatory tests we offer
51 *
52 * These are the different values you can use for the regtest
53 * module parameter. This is useful to help test world roaming
54 * and the driver regulatory_hint() call and combinations of these.
55 * If you want to do specific alpha2 regulatory domain tests simply
56 * use the userspace regulatory request as that will be respected as
57 * well without the need of this module parameter. This is designed
58 * only for testing the driver regulatory request, world roaming
59 * and all possible combinations.
60 *
61 * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
62 * this is the default value.
63 * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
64 * hint, only one driver regulatory hint will be sent as such the
65 * secondary radios are expected to follow.
66 * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
67 * request with all radios reporting the same regulatory domain.
68 * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
69 * different regulatory domains requests. Expected behaviour is for
70 * an intersection to occur but each device will still use their
71 * respective regulatory requested domains. Subsequent radios will
72 * use the resulting intersection.
73 * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We accomplish
74 * this by using a custom beacon-capable regulatory domain for the first
75 * radio. All other device world roam.
76 * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
77 * domain requests. All radios will adhere to this custom world regulatory
78 * domain.
79 * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
80 * domain requests. The first radio will adhere to the first custom world
81 * regulatory domain, the second one to the second custom world regulatory
82 * domain. All other devices will world roam.
83 * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain
84 * settings, only the first radio will send a regulatory domain request
85 * and use strict settings. The rest of the radios are expected to follow.
86 * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
87 * settings. All radios will adhere to this.
88 * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
89 * domain settings, combined with secondary driver regulatory domain
90 * settings. The first radio will get a strict regulatory domain setting
91 * using the first driver regulatory request and the second radio will use
92 * non-strict settings using the second driver regulatory request. All
93 * other devices should follow the intersection created between the
94 * first two.
95 * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
96 * at least 6 radios for a complete test. We will test in this order:
97 * 1 - driver custom world regulatory domain
98 * 2 - second custom world regulatory domain
99 * 3 - first driver regulatory domain request
100 * 4 - second driver regulatory domain request
101 * 5 - strict regulatory domain settings using the third driver regulatory
102 * domain request
103 * 6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
104 * regulatory requests.
105 */
106 enum hwsim_regtest {
107 HWSIM_REGTEST_DISABLED = 0,
108 HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1,
109 HWSIM_REGTEST_DRIVER_REG_ALL = 2,
110 HWSIM_REGTEST_DIFF_COUNTRY = 3,
111 HWSIM_REGTEST_WORLD_ROAM = 4,
112 HWSIM_REGTEST_CUSTOM_WORLD = 5,
113 HWSIM_REGTEST_CUSTOM_WORLD_2 = 6,
114 HWSIM_REGTEST_STRICT_FOLLOW = 7,
115 HWSIM_REGTEST_STRICT_ALL = 8,
116 HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9,
117 HWSIM_REGTEST_ALL = 10,
118 };
119
120 /* Set to one of the HWSIM_REGTEST_* values above */
121 static int regtest = HWSIM_REGTEST_DISABLED;
122 module_param(regtest, int, 0444);
123 MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run");
124
125 static const char *hwsim_alpha2s[] = {
126 "FI",
127 "AL",
128 "US",
129 "DE",
130 "JP",
131 "AL",
132 };
133
134 static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = {
135 .n_reg_rules = 4,
136 .alpha2 = "99",
137 .reg_rules = {
138 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
139 REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
140 REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
141 REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
142 }
143 };
144
145 static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = {
146 .n_reg_rules = 2,
147 .alpha2 = "99",
148 .reg_rules = {
149 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
150 REG_RULE(5725-10, 5850+10, 40, 0, 30,
151 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
152 }
153 };
154
155 struct hwsim_vif_priv {
156 u32 magic;
157 u8 bssid[ETH_ALEN];
158 bool assoc;
159 u16 aid;
160 };
161
162 #define HWSIM_VIF_MAGIC 0x69537748
163
164 static inline void hwsim_check_magic(struct ieee80211_vif *vif)
165 {
166 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
167 WARN_ON(vp->magic != HWSIM_VIF_MAGIC);
168 }
169
170 static inline void hwsim_set_magic(struct ieee80211_vif *vif)
171 {
172 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
173 vp->magic = HWSIM_VIF_MAGIC;
174 }
175
176 static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
177 {
178 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
179 vp->magic = 0;
180 }
181
182 struct hwsim_sta_priv {
183 u32 magic;
184 };
185
186 #define HWSIM_STA_MAGIC 0x6d537748
187
188 static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
189 {
190 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
191 WARN_ON(sp->magic != HWSIM_STA_MAGIC);
192 }
193
194 static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
195 {
196 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
197 sp->magic = HWSIM_STA_MAGIC;
198 }
199
200 static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
201 {
202 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
203 sp->magic = 0;
204 }
205
206 static struct class *hwsim_class;
207
208 static struct net_device *hwsim_mon; /* global monitor netdev */
209
210 #define CHAN2G(_freq) { \
211 .band = IEEE80211_BAND_2GHZ, \
212 .center_freq = (_freq), \
213 .hw_value = (_freq), \
214 .max_power = 20, \
215 }
216
217 #define CHAN5G(_freq) { \
218 .band = IEEE80211_BAND_5GHZ, \
219 .center_freq = (_freq), \
220 .hw_value = (_freq), \
221 .max_power = 20, \
222 }
223
224 static const struct ieee80211_channel hwsim_channels_2ghz[] = {
225 CHAN2G(2412), /* Channel 1 */
226 CHAN2G(2417), /* Channel 2 */
227 CHAN2G(2422), /* Channel 3 */
228 CHAN2G(2427), /* Channel 4 */
229 CHAN2G(2432), /* Channel 5 */
230 CHAN2G(2437), /* Channel 6 */
231 CHAN2G(2442), /* Channel 7 */
232 CHAN2G(2447), /* Channel 8 */
233 CHAN2G(2452), /* Channel 9 */
234 CHAN2G(2457), /* Channel 10 */
235 CHAN2G(2462), /* Channel 11 */
236 CHAN2G(2467), /* Channel 12 */
237 CHAN2G(2472), /* Channel 13 */
238 CHAN2G(2484), /* Channel 14 */
239 };
240
241 static const struct ieee80211_channel hwsim_channels_5ghz[] = {
242 CHAN5G(5180), /* Channel 36 */
243 CHAN5G(5200), /* Channel 40 */
244 CHAN5G(5220), /* Channel 44 */
245 CHAN5G(5240), /* Channel 48 */
246
247 CHAN5G(5260), /* Channel 52 */
248 CHAN5G(5280), /* Channel 56 */
249 CHAN5G(5300), /* Channel 60 */
250 CHAN5G(5320), /* Channel 64 */
251
252 CHAN5G(5500), /* Channel 100 */
253 CHAN5G(5520), /* Channel 104 */
254 CHAN5G(5540), /* Channel 108 */
255 CHAN5G(5560), /* Channel 112 */
256 CHAN5G(5580), /* Channel 116 */
257 CHAN5G(5600), /* Channel 120 */
258 CHAN5G(5620), /* Channel 124 */
259 CHAN5G(5640), /* Channel 128 */
260 CHAN5G(5660), /* Channel 132 */
261 CHAN5G(5680), /* Channel 136 */
262 CHAN5G(5700), /* Channel 140 */
263
264 CHAN5G(5745), /* Channel 149 */
265 CHAN5G(5765), /* Channel 153 */
266 CHAN5G(5785), /* Channel 157 */
267 CHAN5G(5805), /* Channel 161 */
268 CHAN5G(5825), /* Channel 165 */
269 };
270
271 static const struct ieee80211_rate hwsim_rates[] = {
272 { .bitrate = 10 },
273 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
274 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
275 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
276 { .bitrate = 60 },
277 { .bitrate = 90 },
278 { .bitrate = 120 },
279 { .bitrate = 180 },
280 { .bitrate = 240 },
281 { .bitrate = 360 },
282 { .bitrate = 480 },
283 { .bitrate = 540 }
284 };
285
286 static spinlock_t hwsim_radio_lock;
287 static struct list_head hwsim_radios;
288
289 struct mac80211_hwsim_data {
290 struct list_head list;
291 struct ieee80211_hw *hw;
292 struct device *dev;
293 struct ieee80211_supported_band bands[2];
294 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
295 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
296 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
297
298 struct mac_address addresses[2];
299
300 struct ieee80211_channel *channel;
301 unsigned long beacon_int; /* in jiffies unit */
302 unsigned int rx_filter;
303 bool started, idle, scanning;
304 struct mutex mutex;
305 struct timer_list beacon_timer;
306 enum ps_mode {
307 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
308 } ps;
309 bool ps_poll_pending;
310 struct dentry *debugfs;
311 struct dentry *debugfs_ps;
312
313 struct sk_buff_head pending; /* packets pending */
314 /*
315 * Only radios in the same group can communicate together (the
316 * channel has to match too). Each bit represents a group. A
317 * radio can be in more then one group.
318 */
319 u64 group;
320 struct dentry *debugfs_group;
321
322 int power_level;
323 };
324
325
326 struct hwsim_radiotap_hdr {
327 struct ieee80211_radiotap_header hdr;
328 u8 rt_flags;
329 u8 rt_rate;
330 __le16 rt_channel;
331 __le16 rt_chbitmask;
332 } __packed;
333
334 /* MAC80211_HWSIM netlinf family */
335 static struct genl_family hwsim_genl_family = {
336 .id = GENL_ID_GENERATE,
337 .hdrsize = 0,
338 .name = "MAC80211_HWSIM",
339 .version = 1,
340 .maxattr = HWSIM_ATTR_MAX,
341 };
342
343 /* MAC80211_HWSIM netlink policy */
344
345 static struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
346 [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC,
347 .len = 6*sizeof(u8) },
348 [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC,
349 .len = 6*sizeof(u8) },
350 [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
351 .len = IEEE80211_MAX_DATA_LEN },
352 [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
353 [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
354 [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
355 [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC,
356 .len = IEEE80211_TX_MAX_RATES*sizeof(
357 struct hwsim_tx_rate)},
358 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
359 };
360
361 static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
362 struct net_device *dev)
363 {
364 /* TODO: allow packet injection */
365 dev_kfree_skb(skb);
366 return NETDEV_TX_OK;
367 }
368
369
370 static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
371 struct sk_buff *tx_skb)
372 {
373 struct mac80211_hwsim_data *data = hw->priv;
374 struct sk_buff *skb;
375 struct hwsim_radiotap_hdr *hdr;
376 u16 flags;
377 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
378 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
379
380 if (!netif_running(hwsim_mon))
381 return;
382
383 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
384 if (skb == NULL)
385 return;
386
387 hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
388 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
389 hdr->hdr.it_pad = 0;
390 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
391 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
392 (1 << IEEE80211_RADIOTAP_RATE) |
393 (1 << IEEE80211_RADIOTAP_CHANNEL));
394 hdr->rt_flags = 0;
395 hdr->rt_rate = txrate->bitrate / 5;
396 hdr->rt_channel = cpu_to_le16(data->channel->center_freq);
397 flags = IEEE80211_CHAN_2GHZ;
398 if (txrate->flags & IEEE80211_RATE_ERP_G)
399 flags |= IEEE80211_CHAN_OFDM;
400 else
401 flags |= IEEE80211_CHAN_CCK;
402 hdr->rt_chbitmask = cpu_to_le16(flags);
403
404 skb->dev = hwsim_mon;
405 skb_set_mac_header(skb, 0);
406 skb->ip_summed = CHECKSUM_UNNECESSARY;
407 skb->pkt_type = PACKET_OTHERHOST;
408 skb->protocol = htons(ETH_P_802_2);
409 memset(skb->cb, 0, sizeof(skb->cb));
410 netif_rx(skb);
411 }
412
413
414 static void mac80211_hwsim_monitor_ack(struct ieee80211_hw *hw, const u8 *addr)
415 {
416 struct mac80211_hwsim_data *data = hw->priv;
417 struct sk_buff *skb;
418 struct hwsim_radiotap_hdr *hdr;
419 u16 flags;
420 struct ieee80211_hdr *hdr11;
421
422 if (!netif_running(hwsim_mon))
423 return;
424
425 skb = dev_alloc_skb(100);
426 if (skb == NULL)
427 return;
428
429 hdr = (struct hwsim_radiotap_hdr *) skb_put(skb, sizeof(*hdr));
430 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
431 hdr->hdr.it_pad = 0;
432 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
433 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
434 (1 << IEEE80211_RADIOTAP_CHANNEL));
435 hdr->rt_flags = 0;
436 hdr->rt_rate = 0;
437 hdr->rt_channel = cpu_to_le16(data->channel->center_freq);
438 flags = IEEE80211_CHAN_2GHZ;
439 hdr->rt_chbitmask = cpu_to_le16(flags);
440
441 hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
442 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
443 IEEE80211_STYPE_ACK);
444 hdr11->duration_id = cpu_to_le16(0);
445 memcpy(hdr11->addr1, addr, ETH_ALEN);
446
447 skb->dev = hwsim_mon;
448 skb_set_mac_header(skb, 0);
449 skb->ip_summed = CHECKSUM_UNNECESSARY;
450 skb->pkt_type = PACKET_OTHERHOST;
451 skb->protocol = htons(ETH_P_802_2);
452 memset(skb->cb, 0, sizeof(skb->cb));
453 netif_rx(skb);
454 }
455
456
457 static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
458 struct sk_buff *skb)
459 {
460 switch (data->ps) {
461 case PS_DISABLED:
462 return true;
463 case PS_ENABLED:
464 return false;
465 case PS_AUTO_POLL:
466 /* TODO: accept (some) Beacons by default and other frames only
467 * if pending PS-Poll has been sent */
468 return true;
469 case PS_MANUAL_POLL:
470 /* Allow unicast frames to own address if there is a pending
471 * PS-Poll */
472 if (data->ps_poll_pending &&
473 memcmp(data->hw->wiphy->perm_addr, skb->data + 4,
474 ETH_ALEN) == 0) {
475 data->ps_poll_pending = false;
476 return true;
477 }
478 return false;
479 }
480
481 return true;
482 }
483
484
485 struct mac80211_hwsim_addr_match_data {
486 bool ret;
487 const u8 *addr;
488 };
489
490 static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
491 struct ieee80211_vif *vif)
492 {
493 struct mac80211_hwsim_addr_match_data *md = data;
494 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
495 md->ret = true;
496 }
497
498
499 static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
500 const u8 *addr)
501 {
502 struct mac80211_hwsim_addr_match_data md;
503
504 if (memcmp(addr, data->hw->wiphy->perm_addr, ETH_ALEN) == 0)
505 return true;
506
507 md.ret = false;
508 md.addr = addr;
509 ieee80211_iterate_active_interfaces_atomic(data->hw,
510 mac80211_hwsim_addr_iter,
511 &md);
512
513 return md.ret;
514 }
515
516 static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
517 struct sk_buff *my_skb,
518 int dst_pid)
519 {
520 struct sk_buff *skb;
521 struct mac80211_hwsim_data *data = hw->priv;
522 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
523 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
524 void *msg_head;
525 unsigned int hwsim_flags = 0;
526 int i;
527 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
528
529 if (data->idle) {
530 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
531 dev_kfree_skb(my_skb);
532 return;
533 }
534
535 if (data->ps != PS_DISABLED)
536 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
537 /* If the queue contains MAX_QUEUE skb's drop some */
538 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
539 /* Droping until WARN_QUEUE level */
540 while (skb_queue_len(&data->pending) >= WARN_QUEUE)
541 skb_dequeue(&data->pending);
542 }
543
544 skb = genlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC);
545 if (skb == NULL)
546 goto nla_put_failure;
547
548 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
549 HWSIM_CMD_FRAME);
550 if (msg_head == NULL) {
551 printk(KERN_DEBUG "mac80211_hwsim: problem with msg_head\n");
552 goto nla_put_failure;
553 }
554
555 NLA_PUT(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
556 sizeof(struct mac_address), data->addresses[1].addr);
557
558 /* We get the skb->data */
559 NLA_PUT(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data);
560
561 /* We get the flags for this transmission, and we translate them to
562 wmediumd flags */
563
564 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
565 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
566
567 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
568 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
569
570 NLA_PUT_U32(skb, HWSIM_ATTR_FLAGS, hwsim_flags);
571
572 /* We get the tx control (rate and retries) info*/
573
574 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
575 tx_attempts[i].idx = info->status.rates[i].idx;
576 tx_attempts[i].count = info->status.rates[i].count;
577 }
578
579 NLA_PUT(skb, HWSIM_ATTR_TX_INFO,
580 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
581 tx_attempts);
582
583 /* We create a cookie to identify this skb */
584 NLA_PUT_U64(skb, HWSIM_ATTR_COOKIE, (unsigned long) my_skb);
585
586 genlmsg_end(skb, msg_head);
587 genlmsg_unicast(&init_net, skb, dst_pid);
588
589 /* Enqueue the packet */
590 skb_queue_tail(&data->pending, my_skb);
591 return;
592
593 nla_put_failure:
594 printk(KERN_DEBUG "mac80211_hwsim: error occured in %s\n", __func__);
595 }
596
597 static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
598 struct sk_buff *skb)
599 {
600 struct mac80211_hwsim_data *data = hw->priv, *data2;
601 bool ack = false;
602 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
603 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
604 struct ieee80211_rx_status rx_status;
605
606 if (data->idle) {
607 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
608 return false;
609 }
610
611 memset(&rx_status, 0, sizeof(rx_status));
612 /* TODO: set mactime */
613 rx_status.freq = data->channel->center_freq;
614 rx_status.band = data->channel->band;
615 rx_status.rate_idx = info->control.rates[0].idx;
616 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
617 rx_status.flag |= RX_FLAG_HT;
618 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
619 rx_status.flag |= RX_FLAG_40MHZ;
620 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
621 rx_status.flag |= RX_FLAG_SHORT_GI;
622 /* TODO: simulate real signal strength (and optional packet loss) */
623 rx_status.signal = data->power_level - 50;
624
625 if (data->ps != PS_DISABLED)
626 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
627
628 /* release the skb's source info */
629 skb_orphan(skb);
630 skb_dst_drop(skb);
631 skb->mark = 0;
632 secpath_reset(skb);
633 nf_reset(skb);
634
635 /* Copy skb to all enabled radios that are on the current frequency */
636 spin_lock(&hwsim_radio_lock);
637 list_for_each_entry(data2, &hwsim_radios, list) {
638 struct sk_buff *nskb;
639
640 if (data == data2)
641 continue;
642
643 if (data2->idle || !data2->started ||
644 !hwsim_ps_rx_ok(data2, skb) ||
645 !data->channel || !data2->channel ||
646 data->channel->center_freq != data2->channel->center_freq ||
647 !(data->group & data2->group))
648 continue;
649
650 nskb = skb_copy(skb, GFP_ATOMIC);
651 if (nskb == NULL)
652 continue;
653
654 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
655 ack = true;
656 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
657 ieee80211_rx_irqsafe(data2->hw, nskb);
658 }
659 spin_unlock(&hwsim_radio_lock);
660
661 return ack;
662 }
663
664 static void mac80211_hwsim_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
665 {
666 bool ack;
667 struct ieee80211_tx_info *txi;
668 int _pid;
669
670 mac80211_hwsim_monitor_rx(hw, skb);
671
672 if (skb->len < 10) {
673 /* Should not happen; just a sanity check for addr1 use */
674 dev_kfree_skb(skb);
675 return;
676 }
677
678 /* wmediumd mode check */
679 _pid = wmediumd_pid;
680
681 if (_pid)
682 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
683
684 /* NO wmediumd detected, perfect medium simulation */
685 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb);
686
687 if (ack && skb->len >= 16) {
688 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
689 mac80211_hwsim_monitor_ack(hw, hdr->addr2);
690 }
691
692 txi = IEEE80211_SKB_CB(skb);
693
694 if (txi->control.vif)
695 hwsim_check_magic(txi->control.vif);
696 if (txi->control.sta)
697 hwsim_check_sta_magic(txi->control.sta);
698
699 ieee80211_tx_info_clear_status(txi);
700 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
701 txi->flags |= IEEE80211_TX_STAT_ACK;
702 ieee80211_tx_status_irqsafe(hw, skb);
703 }
704
705
706 static int mac80211_hwsim_start(struct ieee80211_hw *hw)
707 {
708 struct mac80211_hwsim_data *data = hw->priv;
709 wiphy_debug(hw->wiphy, "%s\n", __func__);
710 data->started = 1;
711 return 0;
712 }
713
714
715 static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
716 {
717 struct mac80211_hwsim_data *data = hw->priv;
718 data->started = 0;
719 del_timer(&data->beacon_timer);
720 wiphy_debug(hw->wiphy, "%s\n", __func__);
721 }
722
723
724 static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
725 struct ieee80211_vif *vif)
726 {
727 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
728 __func__, ieee80211_vif_type_p2p(vif),
729 vif->addr);
730 hwsim_set_magic(vif);
731 return 0;
732 }
733
734
735 static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
736 struct ieee80211_vif *vif,
737 enum nl80211_iftype newtype,
738 bool newp2p)
739 {
740 newtype = ieee80211_iftype_p2p(newtype, newp2p);
741 wiphy_debug(hw->wiphy,
742 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
743 __func__, ieee80211_vif_type_p2p(vif),
744 newtype, vif->addr);
745 hwsim_check_magic(vif);
746
747 return 0;
748 }
749
750 static void mac80211_hwsim_remove_interface(
751 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
752 {
753 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
754 __func__, ieee80211_vif_type_p2p(vif),
755 vif->addr);
756 hwsim_check_magic(vif);
757 hwsim_clear_magic(vif);
758 }
759
760
761 static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
762 struct ieee80211_vif *vif)
763 {
764 struct ieee80211_hw *hw = arg;
765 struct sk_buff *skb;
766 struct ieee80211_tx_info *info;
767 int _pid;
768
769 hwsim_check_magic(vif);
770
771 if (vif->type != NL80211_IFTYPE_AP &&
772 vif->type != NL80211_IFTYPE_MESH_POINT &&
773 vif->type != NL80211_IFTYPE_ADHOC)
774 return;
775
776 skb = ieee80211_beacon_get(hw, vif);
777 if (skb == NULL)
778 return;
779 info = IEEE80211_SKB_CB(skb);
780
781 mac80211_hwsim_monitor_rx(hw, skb);
782
783 /* wmediumd mode check */
784 _pid = wmediumd_pid;
785
786 if (_pid)
787 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
788
789 mac80211_hwsim_tx_frame_no_nl(hw, skb);
790 dev_kfree_skb(skb);
791 }
792
793
794 static void mac80211_hwsim_beacon(unsigned long arg)
795 {
796 struct ieee80211_hw *hw = (struct ieee80211_hw *) arg;
797 struct mac80211_hwsim_data *data = hw->priv;
798
799 if (!data->started)
800 return;
801
802 ieee80211_iterate_active_interfaces_atomic(
803 hw, mac80211_hwsim_beacon_tx, hw);
804
805 data->beacon_timer.expires = jiffies + data->beacon_int;
806 add_timer(&data->beacon_timer);
807 }
808
809 static const char *hwsim_chantypes[] = {
810 [NL80211_CHAN_NO_HT] = "noht",
811 [NL80211_CHAN_HT20] = "ht20",
812 [NL80211_CHAN_HT40MINUS] = "ht40-",
813 [NL80211_CHAN_HT40PLUS] = "ht40+",
814 };
815
816 static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
817 {
818 struct mac80211_hwsim_data *data = hw->priv;
819 struct ieee80211_conf *conf = &hw->conf;
820 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
821 [IEEE80211_SMPS_AUTOMATIC] = "auto",
822 [IEEE80211_SMPS_OFF] = "off",
823 [IEEE80211_SMPS_STATIC] = "static",
824 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
825 };
826
827 wiphy_debug(hw->wiphy,
828 "%s (freq=%d/%s idle=%d ps=%d smps=%s)\n",
829 __func__,
830 conf->channel->center_freq,
831 hwsim_chantypes[conf->channel_type],
832 !!(conf->flags & IEEE80211_CONF_IDLE),
833 !!(conf->flags & IEEE80211_CONF_PS),
834 smps_modes[conf->smps_mode]);
835
836 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
837
838 data->channel = conf->channel;
839 data->power_level = conf->power_level;
840 if (!data->started || !data->beacon_int)
841 del_timer(&data->beacon_timer);
842 else
843 mod_timer(&data->beacon_timer, jiffies + data->beacon_int);
844
845 return 0;
846 }
847
848
849 static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
850 unsigned int changed_flags,
851 unsigned int *total_flags,u64 multicast)
852 {
853 struct mac80211_hwsim_data *data = hw->priv;
854
855 wiphy_debug(hw->wiphy, "%s\n", __func__);
856
857 data->rx_filter = 0;
858 if (*total_flags & FIF_PROMISC_IN_BSS)
859 data->rx_filter |= FIF_PROMISC_IN_BSS;
860 if (*total_flags & FIF_ALLMULTI)
861 data->rx_filter |= FIF_ALLMULTI;
862
863 *total_flags = data->rx_filter;
864 }
865
866 static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
867 struct ieee80211_vif *vif,
868 struct ieee80211_bss_conf *info,
869 u32 changed)
870 {
871 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
872 struct mac80211_hwsim_data *data = hw->priv;
873
874 hwsim_check_magic(vif);
875
876 wiphy_debug(hw->wiphy, "%s(changed=0x%x)\n", __func__, changed);
877
878 if (changed & BSS_CHANGED_BSSID) {
879 wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
880 __func__, info->bssid);
881 memcpy(vp->bssid, info->bssid, ETH_ALEN);
882 }
883
884 if (changed & BSS_CHANGED_ASSOC) {
885 wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
886 info->assoc, info->aid);
887 vp->assoc = info->assoc;
888 vp->aid = info->aid;
889 }
890
891 if (changed & BSS_CHANGED_BEACON_INT) {
892 wiphy_debug(hw->wiphy, " BCNINT: %d\n", info->beacon_int);
893 data->beacon_int = 1024 * info->beacon_int / 1000 * HZ / 1000;
894 if (WARN_ON(!data->beacon_int))
895 data->beacon_int = 1;
896 if (data->started)
897 mod_timer(&data->beacon_timer,
898 jiffies + data->beacon_int);
899 }
900
901 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
902 wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
903 info->use_cts_prot);
904 }
905
906 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
907 wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
908 info->use_short_preamble);
909 }
910
911 if (changed & BSS_CHANGED_ERP_SLOT) {
912 wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
913 }
914
915 if (changed & BSS_CHANGED_HT) {
916 wiphy_debug(hw->wiphy, " HT: op_mode=0x%x, chantype=%s\n",
917 info->ht_operation_mode,
918 hwsim_chantypes[info->channel_type]);
919 }
920
921 if (changed & BSS_CHANGED_BASIC_RATES) {
922 wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
923 (unsigned long long) info->basic_rates);
924 }
925 }
926
927 static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
928 struct ieee80211_vif *vif,
929 struct ieee80211_sta *sta)
930 {
931 hwsim_check_magic(vif);
932 hwsim_set_sta_magic(sta);
933
934 return 0;
935 }
936
937 static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
938 struct ieee80211_vif *vif,
939 struct ieee80211_sta *sta)
940 {
941 hwsim_check_magic(vif);
942 hwsim_clear_sta_magic(sta);
943
944 return 0;
945 }
946
947 static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
948 struct ieee80211_vif *vif,
949 enum sta_notify_cmd cmd,
950 struct ieee80211_sta *sta)
951 {
952 hwsim_check_magic(vif);
953
954 switch (cmd) {
955 case STA_NOTIFY_SLEEP:
956 case STA_NOTIFY_AWAKE:
957 /* TODO: make good use of these flags */
958 break;
959 default:
960 WARN(1, "Invalid sta notify: %d\n", cmd);
961 break;
962 }
963 }
964
965 static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
966 struct ieee80211_sta *sta,
967 bool set)
968 {
969 hwsim_check_sta_magic(sta);
970 return 0;
971 }
972
973 static int mac80211_hwsim_conf_tx(
974 struct ieee80211_hw *hw,
975 struct ieee80211_vif *vif, u16 queue,
976 const struct ieee80211_tx_queue_params *params)
977 {
978 wiphy_debug(hw->wiphy,
979 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
980 __func__, queue,
981 params->txop, params->cw_min,
982 params->cw_max, params->aifs);
983 return 0;
984 }
985
986 static int mac80211_hwsim_get_survey(
987 struct ieee80211_hw *hw, int idx,
988 struct survey_info *survey)
989 {
990 struct ieee80211_conf *conf = &hw->conf;
991
992 wiphy_debug(hw->wiphy, "%s (idx=%d)\n", __func__, idx);
993
994 if (idx != 0)
995 return -ENOENT;
996
997 /* Current channel */
998 survey->channel = conf->channel;
999
1000 /*
1001 * Magically conjured noise level --- this is only ok for simulated hardware.
1002 *
1003 * A real driver which cannot determine the real channel noise MUST NOT
1004 * report any noise, especially not a magically conjured one :-)
1005 */
1006 survey->filled = SURVEY_INFO_NOISE_DBM;
1007 survey->noise = -92;
1008
1009 return 0;
1010 }
1011
1012 #ifdef CONFIG_NL80211_TESTMODE
1013 /*
1014 * This section contains example code for using netlink
1015 * attributes with the testmode command in nl80211.
1016 */
1017
1018 /* These enums need to be kept in sync with userspace */
1019 enum hwsim_testmode_attr {
1020 __HWSIM_TM_ATTR_INVALID = 0,
1021 HWSIM_TM_ATTR_CMD = 1,
1022 HWSIM_TM_ATTR_PS = 2,
1023
1024 /* keep last */
1025 __HWSIM_TM_ATTR_AFTER_LAST,
1026 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1027 };
1028
1029 enum hwsim_testmode_cmd {
1030 HWSIM_TM_CMD_SET_PS = 0,
1031 HWSIM_TM_CMD_GET_PS = 1,
1032 };
1033
1034 static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1035 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1036 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1037 };
1038
1039 static int hwsim_fops_ps_write(void *dat, u64 val);
1040
1041 static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
1042 void *data, int len)
1043 {
1044 struct mac80211_hwsim_data *hwsim = hw->priv;
1045 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1046 struct sk_buff *skb;
1047 int err, ps;
1048
1049 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
1050 hwsim_testmode_policy);
1051 if (err)
1052 return err;
1053
1054 if (!tb[HWSIM_TM_ATTR_CMD])
1055 return -EINVAL;
1056
1057 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1058 case HWSIM_TM_CMD_SET_PS:
1059 if (!tb[HWSIM_TM_ATTR_PS])
1060 return -EINVAL;
1061 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1062 return hwsim_fops_ps_write(hwsim, ps);
1063 case HWSIM_TM_CMD_GET_PS:
1064 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1065 nla_total_size(sizeof(u32)));
1066 if (!skb)
1067 return -ENOMEM;
1068 NLA_PUT_U32(skb, HWSIM_TM_ATTR_PS, hwsim->ps);
1069 return cfg80211_testmode_reply(skb);
1070 default:
1071 return -EOPNOTSUPP;
1072 }
1073
1074 nla_put_failure:
1075 kfree_skb(skb);
1076 return -ENOBUFS;
1077 }
1078 #endif
1079
1080 static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1081 struct ieee80211_vif *vif,
1082 enum ieee80211_ampdu_mlme_action action,
1083 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
1084 u8 buf_size)
1085 {
1086 switch (action) {
1087 case IEEE80211_AMPDU_TX_START:
1088 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1089 break;
1090 case IEEE80211_AMPDU_TX_STOP:
1091 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1092 break;
1093 case IEEE80211_AMPDU_TX_OPERATIONAL:
1094 break;
1095 case IEEE80211_AMPDU_RX_START:
1096 case IEEE80211_AMPDU_RX_STOP:
1097 break;
1098 default:
1099 return -EOPNOTSUPP;
1100 }
1101
1102 return 0;
1103 }
1104
1105 static void mac80211_hwsim_flush(struct ieee80211_hw *hw, bool drop)
1106 {
1107 /* Not implemented, queues only on kernel side */
1108 }
1109
1110 struct hw_scan_done {
1111 struct delayed_work w;
1112 struct ieee80211_hw *hw;
1113 };
1114
1115 static void hw_scan_done(struct work_struct *work)
1116 {
1117 struct hw_scan_done *hsd =
1118 container_of(work, struct hw_scan_done, w.work);
1119
1120 ieee80211_scan_completed(hsd->hw, false);
1121 kfree(hsd);
1122 }
1123
1124 static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
1125 struct ieee80211_vif *vif,
1126 struct cfg80211_scan_request *req)
1127 {
1128 struct hw_scan_done *hsd = kzalloc(sizeof(*hsd), GFP_KERNEL);
1129 int i;
1130
1131 if (!hsd)
1132 return -ENOMEM;
1133
1134 hsd->hw = hw;
1135 INIT_DELAYED_WORK(&hsd->w, hw_scan_done);
1136
1137 printk(KERN_DEBUG "hwsim hw_scan request\n");
1138 for (i = 0; i < req->n_channels; i++)
1139 printk(KERN_DEBUG "hwsim hw_scan freq %d\n",
1140 req->channels[i]->center_freq);
1141 print_hex_dump(KERN_DEBUG, "scan IEs: ", DUMP_PREFIX_OFFSET,
1142 16, 1, req->ie, req->ie_len, 1);
1143
1144 ieee80211_queue_delayed_work(hw, &hsd->w, 2 * HZ);
1145
1146 return 0;
1147 }
1148
1149 static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw)
1150 {
1151 struct mac80211_hwsim_data *hwsim = hw->priv;
1152
1153 mutex_lock(&hwsim->mutex);
1154
1155 if (hwsim->scanning) {
1156 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
1157 goto out;
1158 }
1159
1160 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
1161 hwsim->scanning = true;
1162
1163 out:
1164 mutex_unlock(&hwsim->mutex);
1165 }
1166
1167 static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw)
1168 {
1169 struct mac80211_hwsim_data *hwsim = hw->priv;
1170
1171 mutex_lock(&hwsim->mutex);
1172
1173 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
1174 hwsim->scanning = false;
1175
1176 mutex_unlock(&hwsim->mutex);
1177 }
1178
1179 static struct ieee80211_ops mac80211_hwsim_ops =
1180 {
1181 .tx = mac80211_hwsim_tx,
1182 .start = mac80211_hwsim_start,
1183 .stop = mac80211_hwsim_stop,
1184 .add_interface = mac80211_hwsim_add_interface,
1185 .change_interface = mac80211_hwsim_change_interface,
1186 .remove_interface = mac80211_hwsim_remove_interface,
1187 .config = mac80211_hwsim_config,
1188 .configure_filter = mac80211_hwsim_configure_filter,
1189 .bss_info_changed = mac80211_hwsim_bss_info_changed,
1190 .sta_add = mac80211_hwsim_sta_add,
1191 .sta_remove = mac80211_hwsim_sta_remove,
1192 .sta_notify = mac80211_hwsim_sta_notify,
1193 .set_tim = mac80211_hwsim_set_tim,
1194 .conf_tx = mac80211_hwsim_conf_tx,
1195 .get_survey = mac80211_hwsim_get_survey,
1196 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
1197 .ampdu_action = mac80211_hwsim_ampdu_action,
1198 .sw_scan_start = mac80211_hwsim_sw_scan,
1199 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
1200 .flush = mac80211_hwsim_flush,
1201 };
1202
1203
1204 static void mac80211_hwsim_free(void)
1205 {
1206 struct list_head tmplist, *i, *tmp;
1207 struct mac80211_hwsim_data *data, *tmpdata;
1208
1209 INIT_LIST_HEAD(&tmplist);
1210
1211 spin_lock_bh(&hwsim_radio_lock);
1212 list_for_each_safe(i, tmp, &hwsim_radios)
1213 list_move(i, &tmplist);
1214 spin_unlock_bh(&hwsim_radio_lock);
1215
1216 list_for_each_entry_safe(data, tmpdata, &tmplist, list) {
1217 debugfs_remove(data->debugfs_group);
1218 debugfs_remove(data->debugfs_ps);
1219 debugfs_remove(data->debugfs);
1220 ieee80211_unregister_hw(data->hw);
1221 device_unregister(data->dev);
1222 ieee80211_free_hw(data->hw);
1223 }
1224 class_destroy(hwsim_class);
1225 }
1226
1227
1228 static struct device_driver mac80211_hwsim_driver = {
1229 .name = "mac80211_hwsim"
1230 };
1231
1232 static const struct net_device_ops hwsim_netdev_ops = {
1233 .ndo_start_xmit = hwsim_mon_xmit,
1234 .ndo_change_mtu = eth_change_mtu,
1235 .ndo_set_mac_address = eth_mac_addr,
1236 .ndo_validate_addr = eth_validate_addr,
1237 };
1238
1239 static void hwsim_mon_setup(struct net_device *dev)
1240 {
1241 dev->netdev_ops = &hwsim_netdev_ops;
1242 dev->destructor = free_netdev;
1243 ether_setup(dev);
1244 dev->tx_queue_len = 0;
1245 dev->type = ARPHRD_IEEE80211_RADIOTAP;
1246 memset(dev->dev_addr, 0, ETH_ALEN);
1247 dev->dev_addr[0] = 0x12;
1248 }
1249
1250
1251 static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
1252 {
1253 struct mac80211_hwsim_data *data = dat;
1254 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1255 struct sk_buff *skb;
1256 struct ieee80211_pspoll *pspoll;
1257 int _pid;
1258
1259 if (!vp->assoc)
1260 return;
1261
1262 wiphy_debug(data->hw->wiphy,
1263 "%s: send PS-Poll to %pM for aid %d\n",
1264 __func__, vp->bssid, vp->aid);
1265
1266 skb = dev_alloc_skb(sizeof(*pspoll));
1267 if (!skb)
1268 return;
1269 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
1270 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
1271 IEEE80211_STYPE_PSPOLL |
1272 IEEE80211_FCTL_PM);
1273 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
1274 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
1275 memcpy(pspoll->ta, mac, ETH_ALEN);
1276
1277 /* wmediumd mode check */
1278 _pid = wmediumd_pid;
1279
1280 if (_pid)
1281 return mac80211_hwsim_tx_frame_nl(data->hw, skb, _pid);
1282
1283 if (!mac80211_hwsim_tx_frame_no_nl(data->hw, skb))
1284 printk(KERN_DEBUG "%s: PS-poll frame not ack'ed\n", __func__);
1285 dev_kfree_skb(skb);
1286 }
1287
1288
1289 static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
1290 struct ieee80211_vif *vif, int ps)
1291 {
1292 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1293 struct sk_buff *skb;
1294 struct ieee80211_hdr *hdr;
1295 int _pid;
1296
1297 if (!vp->assoc)
1298 return;
1299
1300 wiphy_debug(data->hw->wiphy,
1301 "%s: send data::nullfunc to %pM ps=%d\n",
1302 __func__, vp->bssid, ps);
1303
1304 skb = dev_alloc_skb(sizeof(*hdr));
1305 if (!skb)
1306 return;
1307 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
1308 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1309 IEEE80211_STYPE_NULLFUNC |
1310 (ps ? IEEE80211_FCTL_PM : 0));
1311 hdr->duration_id = cpu_to_le16(0);
1312 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
1313 memcpy(hdr->addr2, mac, ETH_ALEN);
1314 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
1315
1316 /* wmediumd mode check */
1317 _pid = wmediumd_pid;
1318
1319 if (_pid)
1320 return mac80211_hwsim_tx_frame_nl(data->hw, skb, _pid);
1321
1322 if (!mac80211_hwsim_tx_frame_no_nl(data->hw, skb))
1323 printk(KERN_DEBUG "%s: nullfunc frame not ack'ed\n", __func__);
1324 dev_kfree_skb(skb);
1325 }
1326
1327
1328 static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
1329 struct ieee80211_vif *vif)
1330 {
1331 struct mac80211_hwsim_data *data = dat;
1332 hwsim_send_nullfunc(data, mac, vif, 1);
1333 }
1334
1335
1336 static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
1337 struct ieee80211_vif *vif)
1338 {
1339 struct mac80211_hwsim_data *data = dat;
1340 hwsim_send_nullfunc(data, mac, vif, 0);
1341 }
1342
1343
1344 static int hwsim_fops_ps_read(void *dat, u64 *val)
1345 {
1346 struct mac80211_hwsim_data *data = dat;
1347 *val = data->ps;
1348 return 0;
1349 }
1350
1351 static int hwsim_fops_ps_write(void *dat, u64 val)
1352 {
1353 struct mac80211_hwsim_data *data = dat;
1354 enum ps_mode old_ps;
1355
1356 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
1357 val != PS_MANUAL_POLL)
1358 return -EINVAL;
1359
1360 old_ps = data->ps;
1361 data->ps = val;
1362
1363 if (val == PS_MANUAL_POLL) {
1364 ieee80211_iterate_active_interfaces(data->hw,
1365 hwsim_send_ps_poll, data);
1366 data->ps_poll_pending = true;
1367 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
1368 ieee80211_iterate_active_interfaces(data->hw,
1369 hwsim_send_nullfunc_ps,
1370 data);
1371 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
1372 ieee80211_iterate_active_interfaces(data->hw,
1373 hwsim_send_nullfunc_no_ps,
1374 data);
1375 }
1376
1377 return 0;
1378 }
1379
1380 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
1381 "%llu\n");
1382
1383
1384 static int hwsim_fops_group_read(void *dat, u64 *val)
1385 {
1386 struct mac80211_hwsim_data *data = dat;
1387 *val = data->group;
1388 return 0;
1389 }
1390
1391 static int hwsim_fops_group_write(void *dat, u64 val)
1392 {
1393 struct mac80211_hwsim_data *data = dat;
1394 data->group = val;
1395 return 0;
1396 }
1397
1398 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
1399 hwsim_fops_group_read, hwsim_fops_group_write,
1400 "%llx\n");
1401
1402 struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(
1403 struct mac_address *addr)
1404 {
1405 struct mac80211_hwsim_data *data;
1406 bool _found = false;
1407
1408 spin_lock_bh(&hwsim_radio_lock);
1409 list_for_each_entry(data, &hwsim_radios, list) {
1410 if (memcmp(data->addresses[1].addr, addr,
1411 sizeof(struct mac_address)) == 0) {
1412 _found = true;
1413 break;
1414 }
1415 }
1416 spin_unlock_bh(&hwsim_radio_lock);
1417
1418 if (!_found)
1419 return NULL;
1420
1421 return data;
1422 }
1423
1424 static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
1425 struct genl_info *info)
1426 {
1427
1428 struct ieee80211_hdr *hdr;
1429 struct mac80211_hwsim_data *data2;
1430 struct ieee80211_tx_info *txi;
1431 struct hwsim_tx_rate *tx_attempts;
1432 struct sk_buff __user *ret_skb;
1433 struct sk_buff *skb, *tmp;
1434 struct mac_address *src;
1435 unsigned int hwsim_flags;
1436
1437 int i;
1438 bool found = false;
1439
1440 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
1441 !info->attrs[HWSIM_ATTR_FLAGS] ||
1442 !info->attrs[HWSIM_ATTR_COOKIE] ||
1443 !info->attrs[HWSIM_ATTR_TX_INFO])
1444 goto out;
1445
1446 src = (struct mac_address *)nla_data(
1447 info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
1448 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
1449
1450 ret_skb = (struct sk_buff __user *)
1451 (unsigned long) nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
1452
1453 data2 = get_hwsim_data_ref_from_addr(src);
1454
1455 if (data2 == NULL)
1456 goto out;
1457
1458 /* look for the skb matching the cookie passed back from user */
1459 skb_queue_walk_safe(&data2->pending, skb, tmp) {
1460 if (skb == ret_skb) {
1461 skb_unlink(skb, &data2->pending);
1462 found = true;
1463 break;
1464 }
1465 }
1466
1467 /* not found */
1468 if (!found)
1469 goto out;
1470
1471 /* Tx info received because the frame was broadcasted on user space,
1472 so we get all the necessary info: tx attempts and skb control buff */
1473
1474 tx_attempts = (struct hwsim_tx_rate *)nla_data(
1475 info->attrs[HWSIM_ATTR_TX_INFO]);
1476
1477 /* now send back TX status */
1478 txi = IEEE80211_SKB_CB(skb);
1479
1480 if (txi->control.vif)
1481 hwsim_check_magic(txi->control.vif);
1482 if (txi->control.sta)
1483 hwsim_check_sta_magic(txi->control.sta);
1484
1485 ieee80211_tx_info_clear_status(txi);
1486
1487 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
1488 txi->status.rates[i].idx = tx_attempts[i].idx;
1489 txi->status.rates[i].count = tx_attempts[i].count;
1490 /*txi->status.rates[i].flags = 0;*/
1491 }
1492
1493 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
1494
1495 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
1496 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
1497 if (skb->len >= 16) {
1498 hdr = (struct ieee80211_hdr *) skb->data;
1499 mac80211_hwsim_monitor_ack(data2->hw, hdr->addr2);
1500 }
1501 }
1502 ieee80211_tx_status_irqsafe(data2->hw, skb);
1503 return 0;
1504 out:
1505 return -EINVAL;
1506
1507 }
1508
1509 static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
1510 struct genl_info *info)
1511 {
1512
1513 struct mac80211_hwsim_data *data2;
1514 struct ieee80211_rx_status rx_status;
1515 struct mac_address *dst;
1516 int frame_data_len;
1517 char *frame_data;
1518 struct sk_buff *skb = NULL;
1519
1520 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
1521 !info->attrs[HWSIM_ATTR_FRAME] ||
1522 !info->attrs[HWSIM_ATTR_RX_RATE] ||
1523 !info->attrs[HWSIM_ATTR_SIGNAL])
1524 goto out;
1525
1526 dst = (struct mac_address *)nla_data(
1527 info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
1528
1529 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
1530 frame_data = (char *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
1531
1532 /* Allocate new skb here */
1533 skb = alloc_skb(frame_data_len, GFP_KERNEL);
1534 if (skb == NULL)
1535 goto err;
1536
1537 if (frame_data_len <= IEEE80211_MAX_DATA_LEN) {
1538 /* Copy the data */
1539 memcpy(skb_put(skb, frame_data_len), frame_data,
1540 frame_data_len);
1541 } else
1542 goto err;
1543
1544 data2 = get_hwsim_data_ref_from_addr(dst);
1545
1546 if (data2 == NULL)
1547 goto out;
1548
1549 /* check if radio is configured properly */
1550
1551 if (data2->idle || !data2->started || !data2->channel)
1552 goto out;
1553
1554 /*A frame is received from user space*/
1555 memset(&rx_status, 0, sizeof(rx_status));
1556 rx_status.freq = data2->channel->center_freq;
1557 rx_status.band = data2->channel->band;
1558 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
1559 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
1560
1561 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
1562 ieee80211_rx_irqsafe(data2->hw, skb);
1563
1564 return 0;
1565 err:
1566 printk(KERN_DEBUG "mac80211_hwsim: error occured in %s\n", __func__);
1567 goto out;
1568 out:
1569 dev_kfree_skb(skb);
1570 return -EINVAL;
1571 }
1572
1573 static int hwsim_register_received_nl(struct sk_buff *skb_2,
1574 struct genl_info *info)
1575 {
1576 if (info == NULL)
1577 goto out;
1578
1579 wmediumd_pid = info->snd_pid;
1580
1581 printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
1582 "switching to wmediumd mode with pid %d\n", info->snd_pid);
1583
1584 return 0;
1585 out:
1586 printk(KERN_DEBUG "mac80211_hwsim: error occured in %s\n", __func__);
1587 return -EINVAL;
1588 }
1589
1590 /* Generic Netlink operations array */
1591 static struct genl_ops hwsim_ops[] = {
1592 {
1593 .cmd = HWSIM_CMD_REGISTER,
1594 .policy = hwsim_genl_policy,
1595 .doit = hwsim_register_received_nl,
1596 .flags = GENL_ADMIN_PERM,
1597 },
1598 {
1599 .cmd = HWSIM_CMD_FRAME,
1600 .policy = hwsim_genl_policy,
1601 .doit = hwsim_cloned_frame_received_nl,
1602 },
1603 {
1604 .cmd = HWSIM_CMD_TX_INFO_FRAME,
1605 .policy = hwsim_genl_policy,
1606 .doit = hwsim_tx_info_frame_received_nl,
1607 },
1608 };
1609
1610 static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
1611 unsigned long state,
1612 void *_notify)
1613 {
1614 struct netlink_notify *notify = _notify;
1615
1616 if (state != NETLINK_URELEASE)
1617 return NOTIFY_DONE;
1618
1619 if (notify->pid == wmediumd_pid) {
1620 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
1621 " socket, switching to perfect channel medium\n");
1622 wmediumd_pid = 0;
1623 }
1624 return NOTIFY_DONE;
1625
1626 }
1627
1628 static struct notifier_block hwsim_netlink_notifier = {
1629 .notifier_call = mac80211_hwsim_netlink_notify,
1630 };
1631
1632 static int hwsim_init_netlink(void)
1633 {
1634 int rc;
1635 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
1636
1637 wmediumd_pid = 0;
1638
1639 rc = genl_register_family_with_ops(&hwsim_genl_family,
1640 hwsim_ops, ARRAY_SIZE(hwsim_ops));
1641 if (rc)
1642 goto failure;
1643
1644 rc = netlink_register_notifier(&hwsim_netlink_notifier);
1645 if (rc)
1646 goto failure;
1647
1648 return 0;
1649
1650 failure:
1651 printk(KERN_DEBUG "mac80211_hwsim: error occured in %s\n", __func__);
1652 return -EINVAL;
1653 }
1654
1655 static void hwsim_exit_netlink(void)
1656 {
1657 int ret;
1658
1659 printk(KERN_INFO "mac80211_hwsim: closing netlink\n");
1660 /* unregister the notifier */
1661 netlink_unregister_notifier(&hwsim_netlink_notifier);
1662 /* unregister the family */
1663 ret = genl_unregister_family(&hwsim_genl_family);
1664 if (ret)
1665 printk(KERN_DEBUG "mac80211_hwsim: "
1666 "unregister family %i\n", ret);
1667 }
1668
1669 static int __init init_mac80211_hwsim(void)
1670 {
1671 int i, err = 0;
1672 u8 addr[ETH_ALEN];
1673 struct mac80211_hwsim_data *data;
1674 struct ieee80211_hw *hw;
1675 enum ieee80211_band band;
1676
1677 if (radios < 1 || radios > 100)
1678 return -EINVAL;
1679
1680 if (fake_hw_scan) {
1681 mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan;
1682 mac80211_hwsim_ops.sw_scan_start = NULL;
1683 mac80211_hwsim_ops.sw_scan_complete = NULL;
1684 }
1685
1686 spin_lock_init(&hwsim_radio_lock);
1687 INIT_LIST_HEAD(&hwsim_radios);
1688
1689 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
1690 if (IS_ERR(hwsim_class))
1691 return PTR_ERR(hwsim_class);
1692
1693 memset(addr, 0, ETH_ALEN);
1694 addr[0] = 0x02;
1695
1696 for (i = 0; i < radios; i++) {
1697 printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
1698 i);
1699 hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);
1700 if (!hw) {
1701 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
1702 "failed\n");
1703 err = -ENOMEM;
1704 goto failed;
1705 }
1706 data = hw->priv;
1707 data->hw = hw;
1708
1709 data->dev = device_create(hwsim_class, NULL, 0, hw,
1710 "hwsim%d", i);
1711 if (IS_ERR(data->dev)) {
1712 printk(KERN_DEBUG
1713 "mac80211_hwsim: device_create "
1714 "failed (%ld)\n", PTR_ERR(data->dev));
1715 err = -ENOMEM;
1716 goto failed_drvdata;
1717 }
1718 data->dev->driver = &mac80211_hwsim_driver;
1719 skb_queue_head_init(&data->pending);
1720
1721 SET_IEEE80211_DEV(hw, data->dev);
1722 addr[3] = i >> 8;
1723 addr[4] = i;
1724 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
1725 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
1726 data->addresses[1].addr[0] |= 0x40;
1727 hw->wiphy->n_addresses = 2;
1728 hw->wiphy->addresses = data->addresses;
1729
1730 if (fake_hw_scan) {
1731 hw->wiphy->max_scan_ssids = 255;
1732 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
1733 }
1734
1735 hw->channel_change_time = 1;
1736 hw->queues = 4;
1737 hw->wiphy->interface_modes =
1738 BIT(NL80211_IFTYPE_STATION) |
1739 BIT(NL80211_IFTYPE_AP) |
1740 BIT(NL80211_IFTYPE_P2P_CLIENT) |
1741 BIT(NL80211_IFTYPE_P2P_GO) |
1742 BIT(NL80211_IFTYPE_ADHOC) |
1743 BIT(NL80211_IFTYPE_MESH_POINT);
1744
1745 hw->flags = IEEE80211_HW_MFP_CAPABLE |
1746 IEEE80211_HW_SIGNAL_DBM |
1747 IEEE80211_HW_SUPPORTS_STATIC_SMPS |
1748 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
1749 IEEE80211_HW_AMPDU_AGGREGATION;
1750
1751 /* ask mac80211 to reserve space for magic */
1752 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
1753 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
1754
1755 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
1756 sizeof(hwsim_channels_2ghz));
1757 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
1758 sizeof(hwsim_channels_5ghz));
1759 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
1760
1761 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
1762 struct ieee80211_supported_band *sband = &data->bands[band];
1763 switch (band) {
1764 case IEEE80211_BAND_2GHZ:
1765 sband->channels = data->channels_2ghz;
1766 sband->n_channels =
1767 ARRAY_SIZE(hwsim_channels_2ghz);
1768 sband->bitrates = data->rates;
1769 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
1770 break;
1771 case IEEE80211_BAND_5GHZ:
1772 sband->channels = data->channels_5ghz;
1773 sband->n_channels =
1774 ARRAY_SIZE(hwsim_channels_5ghz);
1775 sband->bitrates = data->rates + 4;
1776 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
1777 break;
1778 default:
1779 break;
1780 }
1781
1782 sband->ht_cap.ht_supported = true;
1783 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
1784 IEEE80211_HT_CAP_GRN_FLD |
1785 IEEE80211_HT_CAP_SGI_40 |
1786 IEEE80211_HT_CAP_DSSSCCK40;
1787 sband->ht_cap.ampdu_factor = 0x3;
1788 sband->ht_cap.ampdu_density = 0x6;
1789 memset(&sband->ht_cap.mcs, 0,
1790 sizeof(sband->ht_cap.mcs));
1791 sband->ht_cap.mcs.rx_mask[0] = 0xff;
1792 sband->ht_cap.mcs.rx_mask[1] = 0xff;
1793 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1794
1795 hw->wiphy->bands[band] = sband;
1796 }
1797 /* By default all radios are belonging to the first group */
1798 data->group = 1;
1799 mutex_init(&data->mutex);
1800
1801 /* Enable frame retransmissions for lossy channels */
1802 hw->max_rates = 4;
1803 hw->max_rate_tries = 11;
1804
1805 /* Work to be done prior to ieee80211_register_hw() */
1806 switch (regtest) {
1807 case HWSIM_REGTEST_DISABLED:
1808 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
1809 case HWSIM_REGTEST_DRIVER_REG_ALL:
1810 case HWSIM_REGTEST_DIFF_COUNTRY:
1811 /*
1812 * Nothing to be done for driver regulatory domain
1813 * hints prior to ieee80211_register_hw()
1814 */
1815 break;
1816 case HWSIM_REGTEST_WORLD_ROAM:
1817 if (i == 0) {
1818 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1819 wiphy_apply_custom_regulatory(hw->wiphy,
1820 &hwsim_world_regdom_custom_01);
1821 }
1822 break;
1823 case HWSIM_REGTEST_CUSTOM_WORLD:
1824 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1825 wiphy_apply_custom_regulatory(hw->wiphy,
1826 &hwsim_world_regdom_custom_01);
1827 break;
1828 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1829 if (i == 0) {
1830 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1831 wiphy_apply_custom_regulatory(hw->wiphy,
1832 &hwsim_world_regdom_custom_01);
1833 } else if (i == 1) {
1834 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1835 wiphy_apply_custom_regulatory(hw->wiphy,
1836 &hwsim_world_regdom_custom_02);
1837 }
1838 break;
1839 case HWSIM_REGTEST_STRICT_ALL:
1840 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
1841 break;
1842 case HWSIM_REGTEST_STRICT_FOLLOW:
1843 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1844 if (i == 0)
1845 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
1846 break;
1847 case HWSIM_REGTEST_ALL:
1848 if (i == 0) {
1849 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1850 wiphy_apply_custom_regulatory(hw->wiphy,
1851 &hwsim_world_regdom_custom_01);
1852 } else if (i == 1) {
1853 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1854 wiphy_apply_custom_regulatory(hw->wiphy,
1855 &hwsim_world_regdom_custom_02);
1856 } else if (i == 4)
1857 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
1858 break;
1859 default:
1860 break;
1861 }
1862
1863 /* give the regulatory workqueue a chance to run */
1864 if (regtest)
1865 schedule_timeout_interruptible(1);
1866 err = ieee80211_register_hw(hw);
1867 if (err < 0) {
1868 printk(KERN_DEBUG "mac80211_hwsim: "
1869 "ieee80211_register_hw failed (%d)\n", err);
1870 goto failed_hw;
1871 }
1872
1873 /* Work to be done after to ieee80211_register_hw() */
1874 switch (regtest) {
1875 case HWSIM_REGTEST_WORLD_ROAM:
1876 case HWSIM_REGTEST_DISABLED:
1877 break;
1878 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
1879 if (!i)
1880 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1881 break;
1882 case HWSIM_REGTEST_DRIVER_REG_ALL:
1883 case HWSIM_REGTEST_STRICT_ALL:
1884 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1885 break;
1886 case HWSIM_REGTEST_DIFF_COUNTRY:
1887 if (i < ARRAY_SIZE(hwsim_alpha2s))
1888 regulatory_hint(hw->wiphy, hwsim_alpha2s[i]);
1889 break;
1890 case HWSIM_REGTEST_CUSTOM_WORLD:
1891 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1892 /*
1893 * Nothing to be done for custom world regulatory
1894 * domains after to ieee80211_register_hw
1895 */
1896 break;
1897 case HWSIM_REGTEST_STRICT_FOLLOW:
1898 if (i == 0)
1899 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1900 break;
1901 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1902 if (i == 0)
1903 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1904 else if (i == 1)
1905 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1906 break;
1907 case HWSIM_REGTEST_ALL:
1908 if (i == 2)
1909 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1910 else if (i == 3)
1911 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1912 else if (i == 4)
1913 regulatory_hint(hw->wiphy, hwsim_alpha2s[2]);
1914 break;
1915 default:
1916 break;
1917 }
1918
1919 wiphy_debug(hw->wiphy, "hwaddr %pm registered\n",
1920 hw->wiphy->perm_addr);
1921
1922 data->debugfs = debugfs_create_dir("hwsim",
1923 hw->wiphy->debugfsdir);
1924 data->debugfs_ps = debugfs_create_file("ps", 0666,
1925 data->debugfs, data,
1926 &hwsim_fops_ps);
1927 data->debugfs_group = debugfs_create_file("group", 0666,
1928 data->debugfs, data,
1929 &hwsim_fops_group);
1930
1931 setup_timer(&data->beacon_timer, mac80211_hwsim_beacon,
1932 (unsigned long) hw);
1933
1934 list_add_tail(&data->list, &hwsim_radios);
1935 }
1936
1937 hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
1938 if (hwsim_mon == NULL)
1939 goto failed;
1940
1941 rtnl_lock();
1942
1943 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
1944 if (err < 0)
1945 goto failed_mon;
1946
1947
1948 err = register_netdevice(hwsim_mon);
1949 if (err < 0)
1950 goto failed_mon;
1951
1952 rtnl_unlock();
1953
1954 err = hwsim_init_netlink();
1955 if (err < 0)
1956 goto failed_nl;
1957
1958 return 0;
1959
1960 failed_nl:
1961 printk(KERN_DEBUG "mac_80211_hwsim: failed initializing netlink\n");
1962 return err;
1963
1964 failed_mon:
1965 rtnl_unlock();
1966 free_netdev(hwsim_mon);
1967 mac80211_hwsim_free();
1968 return err;
1969
1970 failed_hw:
1971 device_unregister(data->dev);
1972 failed_drvdata:
1973 ieee80211_free_hw(hw);
1974 failed:
1975 mac80211_hwsim_free();
1976 return err;
1977 }
1978
1979
1980 static void __exit exit_mac80211_hwsim(void)
1981 {
1982 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
1983
1984 hwsim_exit_netlink();
1985
1986 mac80211_hwsim_free();
1987 unregister_netdev(hwsim_mon);
1988 }
1989
1990
1991 module_init(init_mac80211_hwsim);
1992 module_exit(exit_mac80211_hwsim);
Linux kernel - Deliverables
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