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Merge branch 'for-linus' of git://git.infradead.org/users/sameo/mfd-2.6
[linux-btrfs-devel.git] / drivers / net / wireless / mac80211_hwsim.c
blob031cd89b17682825177499303b94a80f3a84e97a
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 /* TODO: simulate real signal strength (and optional packet loss) */
616 rx_status.signal = data->power_level - 50;
617
618 if (data->ps != PS_DISABLED)
619 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
620
621 /* release the skb's source info */
622 skb_orphan(skb);
623 skb_dst_drop(skb);
624 skb->mark = 0;
625 secpath_reset(skb);
626 nf_reset(skb);
627
628 /* Copy skb to all enabled radios that are on the current frequency */
629 spin_lock(&hwsim_radio_lock);
630 list_for_each_entry(data2, &hwsim_radios, list) {
631 struct sk_buff *nskb;
632
633 if (data == data2)
634 continue;
635
636 if (data2->idle || !data2->started ||
637 !hwsim_ps_rx_ok(data2, skb) ||
638 !data->channel || !data2->channel ||
639 data->channel->center_freq != data2->channel->center_freq ||
640 !(data->group & data2->group))
641 continue;
642
643 nskb = skb_copy(skb, GFP_ATOMIC);
644 if (nskb == NULL)
645 continue;
646
647 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
648 ack = true;
649 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
650 ieee80211_rx_irqsafe(data2->hw, nskb);
651 }
652 spin_unlock(&hwsim_radio_lock);
653
654 return ack;
655 }
656
657 static void mac80211_hwsim_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
658 {
659 bool ack;
660 struct ieee80211_tx_info *txi;
661 int _pid;
662
663 mac80211_hwsim_monitor_rx(hw, skb);
664
665 if (skb->len < 10) {
666 /* Should not happen; just a sanity check for addr1 use */
667 dev_kfree_skb(skb);
668 return;
669 }
670
671 /* wmediumd mode check */
672 _pid = wmediumd_pid;
673
674 if (_pid)
675 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
676
677 /* NO wmediumd detected, perfect medium simulation */
678 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb);
679
680 if (ack && skb->len >= 16) {
681 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
682 mac80211_hwsim_monitor_ack(hw, hdr->addr2);
683 }
684
685 txi = IEEE80211_SKB_CB(skb);
686
687 if (txi->control.vif)
688 hwsim_check_magic(txi->control.vif);
689 if (txi->control.sta)
690 hwsim_check_sta_magic(txi->control.sta);
691
692 ieee80211_tx_info_clear_status(txi);
693 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
694 txi->flags |= IEEE80211_TX_STAT_ACK;
695 ieee80211_tx_status_irqsafe(hw, skb);
696 }
697
698
699 static int mac80211_hwsim_start(struct ieee80211_hw *hw)
700 {
701 struct mac80211_hwsim_data *data = hw->priv;
702 wiphy_debug(hw->wiphy, "%s\n", __func__);
703 data->started = 1;
704 return 0;
705 }
706
707
708 static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
709 {
710 struct mac80211_hwsim_data *data = hw->priv;
711 data->started = 0;
712 del_timer(&data->beacon_timer);
713 wiphy_debug(hw->wiphy, "%s\n", __func__);
714 }
715
716
717 static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
718 struct ieee80211_vif *vif)
719 {
720 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
721 __func__, ieee80211_vif_type_p2p(vif),
722 vif->addr);
723 hwsim_set_magic(vif);
724 return 0;
725 }
726
727
728 static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
729 struct ieee80211_vif *vif,
730 enum nl80211_iftype newtype,
731 bool newp2p)
732 {
733 newtype = ieee80211_iftype_p2p(newtype, newp2p);
734 wiphy_debug(hw->wiphy,
735 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
736 __func__, ieee80211_vif_type_p2p(vif),
737 newtype, vif->addr);
738 hwsim_check_magic(vif);
739
740 return 0;
741 }
742
743 static void mac80211_hwsim_remove_interface(
744 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
745 {
746 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
747 __func__, ieee80211_vif_type_p2p(vif),
748 vif->addr);
749 hwsim_check_magic(vif);
750 hwsim_clear_magic(vif);
751 }
752
753
754 static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
755 struct ieee80211_vif *vif)
756 {
757 struct ieee80211_hw *hw = arg;
758 struct sk_buff *skb;
759 struct ieee80211_tx_info *info;
760 int _pid;
761
762 hwsim_check_magic(vif);
763
764 if (vif->type != NL80211_IFTYPE_AP &&
765 vif->type != NL80211_IFTYPE_MESH_POINT &&
766 vif->type != NL80211_IFTYPE_ADHOC)
767 return;
768
769 skb = ieee80211_beacon_get(hw, vif);
770 if (skb == NULL)
771 return;
772 info = IEEE80211_SKB_CB(skb);
773
774 mac80211_hwsim_monitor_rx(hw, skb);
775
776 /* wmediumd mode check */
777 _pid = wmediumd_pid;
778
779 if (_pid)
780 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
781
782 mac80211_hwsim_tx_frame_no_nl(hw, skb);
783 dev_kfree_skb(skb);
784 }
785
786
787 static void mac80211_hwsim_beacon(unsigned long arg)
788 {
789 struct ieee80211_hw *hw = (struct ieee80211_hw *) arg;
790 struct mac80211_hwsim_data *data = hw->priv;
791
792 if (!data->started)
793 return;
794
795 ieee80211_iterate_active_interfaces_atomic(
796 hw, mac80211_hwsim_beacon_tx, hw);
797
798 data->beacon_timer.expires = jiffies + data->beacon_int;
799 add_timer(&data->beacon_timer);
800 }
801
802 static const char *hwsim_chantypes[] = {
803 [NL80211_CHAN_NO_HT] = "noht",
804 [NL80211_CHAN_HT20] = "ht20",
805 [NL80211_CHAN_HT40MINUS] = "ht40-",
806 [NL80211_CHAN_HT40PLUS] = "ht40+",
807 };
808
809 static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
810 {
811 struct mac80211_hwsim_data *data = hw->priv;
812 struct ieee80211_conf *conf = &hw->conf;
813 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
814 [IEEE80211_SMPS_AUTOMATIC] = "auto",
815 [IEEE80211_SMPS_OFF] = "off",
816 [IEEE80211_SMPS_STATIC] = "static",
817 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
818 };
819
820 wiphy_debug(hw->wiphy,
821 "%s (freq=%d/%s idle=%d ps=%d smps=%s)\n",
822 __func__,
823 conf->channel->center_freq,
824 hwsim_chantypes[conf->channel_type],
825 !!(conf->flags & IEEE80211_CONF_IDLE),
826 !!(conf->flags & IEEE80211_CONF_PS),
827 smps_modes[conf->smps_mode]);
828
829 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
830
831 data->channel = conf->channel;
832 data->power_level = conf->power_level;
833 if (!data->started || !data->beacon_int)
834 del_timer(&data->beacon_timer);
835 else
836 mod_timer(&data->beacon_timer, jiffies + data->beacon_int);
837
838 return 0;
839 }
840
841
842 static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
843 unsigned int changed_flags,
844 unsigned int *total_flags,u64 multicast)
845 {
846 struct mac80211_hwsim_data *data = hw->priv;
847
848 wiphy_debug(hw->wiphy, "%s\n", __func__);
849
850 data->rx_filter = 0;
851 if (*total_flags & FIF_PROMISC_IN_BSS)
852 data->rx_filter |= FIF_PROMISC_IN_BSS;
853 if (*total_flags & FIF_ALLMULTI)
854 data->rx_filter |= FIF_ALLMULTI;
855
856 *total_flags = data->rx_filter;
857 }
858
859 static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
860 struct ieee80211_vif *vif,
861 struct ieee80211_bss_conf *info,
862 u32 changed)
863 {
864 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
865 struct mac80211_hwsim_data *data = hw->priv;
866
867 hwsim_check_magic(vif);
868
869 wiphy_debug(hw->wiphy, "%s(changed=0x%x)\n", __func__, changed);
870
871 if (changed & BSS_CHANGED_BSSID) {
872 wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
873 __func__, info->bssid);
874 memcpy(vp->bssid, info->bssid, ETH_ALEN);
875 }
876
877 if (changed & BSS_CHANGED_ASSOC) {
878 wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
879 info->assoc, info->aid);
880 vp->assoc = info->assoc;
881 vp->aid = info->aid;
882 }
883
884 if (changed & BSS_CHANGED_BEACON_INT) {
885 wiphy_debug(hw->wiphy, " BCNINT: %d\n", info->beacon_int);
886 data->beacon_int = 1024 * info->beacon_int / 1000 * HZ / 1000;
887 if (WARN_ON(!data->beacon_int))
888 data->beacon_int = 1;
889 if (data->started)
890 mod_timer(&data->beacon_timer,
891 jiffies + data->beacon_int);
892 }
893
894 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
895 wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
896 info->use_cts_prot);
897 }
898
899 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
900 wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
901 info->use_short_preamble);
902 }
903
904 if (changed & BSS_CHANGED_ERP_SLOT) {
905 wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
906 }
907
908 if (changed & BSS_CHANGED_HT) {
909 wiphy_debug(hw->wiphy, " HT: op_mode=0x%x, chantype=%s\n",
910 info->ht_operation_mode,
911 hwsim_chantypes[info->channel_type]);
912 }
913
914 if (changed & BSS_CHANGED_BASIC_RATES) {
915 wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
916 (unsigned long long) info->basic_rates);
917 }
918 }
919
920 static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
921 struct ieee80211_vif *vif,
922 struct ieee80211_sta *sta)
923 {
924 hwsim_check_magic(vif);
925 hwsim_set_sta_magic(sta);
926
927 return 0;
928 }
929
930 static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
931 struct ieee80211_vif *vif,
932 struct ieee80211_sta *sta)
933 {
934 hwsim_check_magic(vif);
935 hwsim_clear_sta_magic(sta);
936
937 return 0;
938 }
939
940 static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
941 struct ieee80211_vif *vif,
942 enum sta_notify_cmd cmd,
943 struct ieee80211_sta *sta)
944 {
945 hwsim_check_magic(vif);
946
947 switch (cmd) {
948 case STA_NOTIFY_SLEEP:
949 case STA_NOTIFY_AWAKE:
950 /* TODO: make good use of these flags */
951 break;
952 default:
953 WARN(1, "Invalid sta notify: %d\n", cmd);
954 break;
955 }
956 }
957
958 static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
959 struct ieee80211_sta *sta,
960 bool set)
961 {
962 hwsim_check_sta_magic(sta);
963 return 0;
964 }
965
966 static int mac80211_hwsim_conf_tx(
967 struct ieee80211_hw *hw, u16 queue,
968 const struct ieee80211_tx_queue_params *params)
969 {
970 wiphy_debug(hw->wiphy,
971 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
972 __func__, queue,
973 params->txop, params->cw_min,
974 params->cw_max, params->aifs);
975 return 0;
976 }
977
978 static int mac80211_hwsim_get_survey(
979 struct ieee80211_hw *hw, int idx,
980 struct survey_info *survey)
981 {
982 struct ieee80211_conf *conf = &hw->conf;
983
984 wiphy_debug(hw->wiphy, "%s (idx=%d)\n", __func__, idx);
985
986 if (idx != 0)
987 return -ENOENT;
988
989 /* Current channel */
990 survey->channel = conf->channel;
991
992 /*
993 * Magically conjured noise level --- this is only ok for simulated hardware.
994 *
995 * A real driver which cannot determine the real channel noise MUST NOT
996 * report any noise, especially not a magically conjured one :-)
997 */
998 survey->filled = SURVEY_INFO_NOISE_DBM;
999 survey->noise = -92;
1000
1001 return 0;
1002 }
1003
1004 #ifdef CONFIG_NL80211_TESTMODE
1005 /*
1006 * This section contains example code for using netlink
1007 * attributes with the testmode command in nl80211.
1008 */
1009
1010 /* These enums need to be kept in sync with userspace */
1011 enum hwsim_testmode_attr {
1012 __HWSIM_TM_ATTR_INVALID = 0,
1013 HWSIM_TM_ATTR_CMD = 1,
1014 HWSIM_TM_ATTR_PS = 2,
1015
1016 /* keep last */
1017 __HWSIM_TM_ATTR_AFTER_LAST,
1018 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1019 };
1020
1021 enum hwsim_testmode_cmd {
1022 HWSIM_TM_CMD_SET_PS = 0,
1023 HWSIM_TM_CMD_GET_PS = 1,
1024 };
1025
1026 static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1027 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1028 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1029 };
1030
1031 static int hwsim_fops_ps_write(void *dat, u64 val);
1032
1033 static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
1034 void *data, int len)
1035 {
1036 struct mac80211_hwsim_data *hwsim = hw->priv;
1037 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1038 struct sk_buff *skb;
1039 int err, ps;
1040
1041 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
1042 hwsim_testmode_policy);
1043 if (err)
1044 return err;
1045
1046 if (!tb[HWSIM_TM_ATTR_CMD])
1047 return -EINVAL;
1048
1049 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1050 case HWSIM_TM_CMD_SET_PS:
1051 if (!tb[HWSIM_TM_ATTR_PS])
1052 return -EINVAL;
1053 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1054 return hwsim_fops_ps_write(hwsim, ps);
1055 case HWSIM_TM_CMD_GET_PS:
1056 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1057 nla_total_size(sizeof(u32)));
1058 if (!skb)
1059 return -ENOMEM;
1060 NLA_PUT_U32(skb, HWSIM_TM_ATTR_PS, hwsim->ps);
1061 return cfg80211_testmode_reply(skb);
1062 default:
1063 return -EOPNOTSUPP;
1064 }
1065
1066 nla_put_failure:
1067 kfree_skb(skb);
1068 return -ENOBUFS;
1069 }
1070 #endif
1071
1072 static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1073 struct ieee80211_vif *vif,
1074 enum ieee80211_ampdu_mlme_action action,
1075 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
1076 u8 buf_size)
1077 {
1078 switch (action) {
1079 case IEEE80211_AMPDU_TX_START:
1080 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1081 break;
1082 case IEEE80211_AMPDU_TX_STOP:
1083 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1084 break;
1085 case IEEE80211_AMPDU_TX_OPERATIONAL:
1086 break;
1087 case IEEE80211_AMPDU_RX_START:
1088 case IEEE80211_AMPDU_RX_STOP:
1089 break;
1090 default:
1091 return -EOPNOTSUPP;
1092 }
1093
1094 return 0;
1095 }
1096
1097 static void mac80211_hwsim_flush(struct ieee80211_hw *hw, bool drop)
1098 {
1099 /* Not implemented, queues only on kernel side */
1100 }
1101
1102 struct hw_scan_done {
1103 struct delayed_work w;
1104 struct ieee80211_hw *hw;
1105 };
1106
1107 static void hw_scan_done(struct work_struct *work)
1108 {
1109 struct hw_scan_done *hsd =
1110 container_of(work, struct hw_scan_done, w.work);
1111
1112 ieee80211_scan_completed(hsd->hw, false);
1113 kfree(hsd);
1114 }
1115
1116 static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
1117 struct ieee80211_vif *vif,
1118 struct cfg80211_scan_request *req)
1119 {
1120 struct hw_scan_done *hsd = kzalloc(sizeof(*hsd), GFP_KERNEL);
1121 int i;
1122
1123 if (!hsd)
1124 return -ENOMEM;
1125
1126 hsd->hw = hw;
1127 INIT_DELAYED_WORK(&hsd->w, hw_scan_done);
1128
1129 printk(KERN_DEBUG "hwsim hw_scan request\n");
1130 for (i = 0; i < req->n_channels; i++)
1131 printk(KERN_DEBUG "hwsim hw_scan freq %d\n",
1132 req->channels[i]->center_freq);
1133 print_hex_dump(KERN_DEBUG, "scan IEs: ", DUMP_PREFIX_OFFSET,
1134 16, 1, req->ie, req->ie_len, 1);
1135
1136 ieee80211_queue_delayed_work(hw, &hsd->w, 2 * HZ);
1137
1138 return 0;
1139 }
1140
1141 static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw)
1142 {
1143 struct mac80211_hwsim_data *hwsim = hw->priv;
1144
1145 mutex_lock(&hwsim->mutex);
1146
1147 if (hwsim->scanning) {
1148 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
1149 goto out;
1150 }
1151
1152 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
1153 hwsim->scanning = true;
1154
1155 out:
1156 mutex_unlock(&hwsim->mutex);
1157 }
1158
1159 static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw)
1160 {
1161 struct mac80211_hwsim_data *hwsim = hw->priv;
1162
1163 mutex_lock(&hwsim->mutex);
1164
1165 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
1166 hwsim->scanning = false;
1167
1168 mutex_unlock(&hwsim->mutex);
1169 }
1170
1171 static struct ieee80211_ops mac80211_hwsim_ops =
1172 {
1173 .tx = mac80211_hwsim_tx,
1174 .start = mac80211_hwsim_start,
1175 .stop = mac80211_hwsim_stop,
1176 .add_interface = mac80211_hwsim_add_interface,
1177 .change_interface = mac80211_hwsim_change_interface,
1178 .remove_interface = mac80211_hwsim_remove_interface,
1179 .config = mac80211_hwsim_config,
1180 .configure_filter = mac80211_hwsim_configure_filter,
1181 .bss_info_changed = mac80211_hwsim_bss_info_changed,
1182 .sta_add = mac80211_hwsim_sta_add,
1183 .sta_remove = mac80211_hwsim_sta_remove,
1184 .sta_notify = mac80211_hwsim_sta_notify,
1185 .set_tim = mac80211_hwsim_set_tim,
1186 .conf_tx = mac80211_hwsim_conf_tx,
1187 .get_survey = mac80211_hwsim_get_survey,
1188 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
1189 .ampdu_action = mac80211_hwsim_ampdu_action,
1190 .sw_scan_start = mac80211_hwsim_sw_scan,
1191 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
1192 .flush = mac80211_hwsim_flush,
1193 };
1194
1195
1196 static void mac80211_hwsim_free(void)
1197 {
1198 struct list_head tmplist, *i, *tmp;
1199 struct mac80211_hwsim_data *data, *tmpdata;
1200
1201 INIT_LIST_HEAD(&tmplist);
1202
1203 spin_lock_bh(&hwsim_radio_lock);
1204 list_for_each_safe(i, tmp, &hwsim_radios)
1205 list_move(i, &tmplist);
1206 spin_unlock_bh(&hwsim_radio_lock);
1207
1208 list_for_each_entry_safe(data, tmpdata, &tmplist, list) {
1209 debugfs_remove(data->debugfs_group);
1210 debugfs_remove(data->debugfs_ps);
1211 debugfs_remove(data->debugfs);
1212 ieee80211_unregister_hw(data->hw);
1213 device_unregister(data->dev);
1214 ieee80211_free_hw(data->hw);
1215 }
1216 class_destroy(hwsim_class);
1217 }
1218
1219
1220 static struct device_driver mac80211_hwsim_driver = {
1221 .name = "mac80211_hwsim"
1222 };
1223
1224 static const struct net_device_ops hwsim_netdev_ops = {
1225 .ndo_start_xmit = hwsim_mon_xmit,
1226 .ndo_change_mtu = eth_change_mtu,
1227 .ndo_set_mac_address = eth_mac_addr,
1228 .ndo_validate_addr = eth_validate_addr,
1229 };
1230
1231 static void hwsim_mon_setup(struct net_device *dev)
1232 {
1233 dev->netdev_ops = &hwsim_netdev_ops;
1234 dev->destructor = free_netdev;
1235 ether_setup(dev);
1236 dev->tx_queue_len = 0;
1237 dev->type = ARPHRD_IEEE80211_RADIOTAP;
1238 memset(dev->dev_addr, 0, ETH_ALEN);
1239 dev->dev_addr[0] = 0x12;
1240 }
1241
1242
1243 static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
1244 {
1245 struct mac80211_hwsim_data *data = dat;
1246 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1247 struct sk_buff *skb;
1248 struct ieee80211_pspoll *pspoll;
1249 int _pid;
1250
1251 if (!vp->assoc)
1252 return;
1253
1254 wiphy_debug(data->hw->wiphy,
1255 "%s: send PS-Poll to %pM for aid %d\n",
1256 __func__, vp->bssid, vp->aid);
1257
1258 skb = dev_alloc_skb(sizeof(*pspoll));
1259 if (!skb)
1260 return;
1261 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
1262 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
1263 IEEE80211_STYPE_PSPOLL |
1264 IEEE80211_FCTL_PM);
1265 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
1266 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
1267 memcpy(pspoll->ta, mac, ETH_ALEN);
1268
1269 /* wmediumd mode check */
1270 _pid = wmediumd_pid;
1271
1272 if (_pid)
1273 return mac80211_hwsim_tx_frame_nl(data->hw, skb, _pid);
1274
1275 if (!mac80211_hwsim_tx_frame_no_nl(data->hw, skb))
1276 printk(KERN_DEBUG "%s: PS-poll frame not ack'ed\n", __func__);
1277 dev_kfree_skb(skb);
1278 }
1279
1280
1281 static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
1282 struct ieee80211_vif *vif, int ps)
1283 {
1284 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1285 struct sk_buff *skb;
1286 struct ieee80211_hdr *hdr;
1287 int _pid;
1288
1289 if (!vp->assoc)
1290 return;
1291
1292 wiphy_debug(data->hw->wiphy,
1293 "%s: send data::nullfunc to %pM ps=%d\n",
1294 __func__, vp->bssid, ps);
1295
1296 skb = dev_alloc_skb(sizeof(*hdr));
1297 if (!skb)
1298 return;
1299 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
1300 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1301 IEEE80211_STYPE_NULLFUNC |
1302 (ps ? IEEE80211_FCTL_PM : 0));
1303 hdr->duration_id = cpu_to_le16(0);
1304 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
1305 memcpy(hdr->addr2, mac, ETH_ALEN);
1306 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
1307
1308 /* wmediumd mode check */
1309 _pid = wmediumd_pid;
1310
1311 if (_pid)
1312 return mac80211_hwsim_tx_frame_nl(data->hw, skb, _pid);
1313
1314 if (!mac80211_hwsim_tx_frame_no_nl(data->hw, skb))
1315 printk(KERN_DEBUG "%s: nullfunc frame not ack'ed\n", __func__);
1316 dev_kfree_skb(skb);
1317 }
1318
1319
1320 static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
1321 struct ieee80211_vif *vif)
1322 {
1323 struct mac80211_hwsim_data *data = dat;
1324 hwsim_send_nullfunc(data, mac, vif, 1);
1325 }
1326
1327
1328 static void hwsim_send_nullfunc_no_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, 0);
1333 }
1334
1335
1336 static int hwsim_fops_ps_read(void *dat, u64 *val)
1337 {
1338 struct mac80211_hwsim_data *data = dat;
1339 *val = data->ps;
1340 return 0;
1341 }
1342
1343 static int hwsim_fops_ps_write(void *dat, u64 val)
1344 {
1345 struct mac80211_hwsim_data *data = dat;
1346 enum ps_mode old_ps;
1347
1348 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
1349 val != PS_MANUAL_POLL)
1350 return -EINVAL;
1351
1352 old_ps = data->ps;
1353 data->ps = val;
1354
1355 if (val == PS_MANUAL_POLL) {
1356 ieee80211_iterate_active_interfaces(data->hw,
1357 hwsim_send_ps_poll, data);
1358 data->ps_poll_pending = true;
1359 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
1360 ieee80211_iterate_active_interfaces(data->hw,
1361 hwsim_send_nullfunc_ps,
1362 data);
1363 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
1364 ieee80211_iterate_active_interfaces(data->hw,
1365 hwsim_send_nullfunc_no_ps,
1366 data);
1367 }
1368
1369 return 0;
1370 }
1371
1372 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
1373 "%llu\n");
1374
1375
1376 static int hwsim_fops_group_read(void *dat, u64 *val)
1377 {
1378 struct mac80211_hwsim_data *data = dat;
1379 *val = data->group;
1380 return 0;
1381 }
1382
1383 static int hwsim_fops_group_write(void *dat, u64 val)
1384 {
1385 struct mac80211_hwsim_data *data = dat;
1386 data->group = val;
1387 return 0;
1388 }
1389
1390 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
1391 hwsim_fops_group_read, hwsim_fops_group_write,
1392 "%llx\n");
1393
1394 struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(
1395 struct mac_address *addr)
1396 {
1397 struct mac80211_hwsim_data *data;
1398 bool _found = false;
1399
1400 spin_lock_bh(&hwsim_radio_lock);
1401 list_for_each_entry(data, &hwsim_radios, list) {
1402 if (memcmp(data->addresses[1].addr, addr,
1403 sizeof(struct mac_address)) == 0) {
1404 _found = true;
1405 break;
1406 }
1407 }
1408 spin_unlock_bh(&hwsim_radio_lock);
1409
1410 if (!_found)
1411 return NULL;
1412
1413 return data;
1414 }
1415
1416 static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
1417 struct genl_info *info)
1418 {
1419
1420 struct ieee80211_hdr *hdr;
1421 struct mac80211_hwsim_data *data2;
1422 struct ieee80211_tx_info *txi;
1423 struct hwsim_tx_rate *tx_attempts;
1424 struct sk_buff __user *ret_skb;
1425 struct sk_buff *skb, *tmp;
1426 struct mac_address *src;
1427 unsigned int hwsim_flags;
1428
1429 int i;
1430 bool found = false;
1431
1432 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
1433 !info->attrs[HWSIM_ATTR_FLAGS] ||
1434 !info->attrs[HWSIM_ATTR_COOKIE] ||
1435 !info->attrs[HWSIM_ATTR_TX_INFO])
1436 goto out;
1437
1438 src = (struct mac_address *)nla_data(
1439 info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
1440 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
1441
1442 ret_skb = (struct sk_buff __user *)
1443 (unsigned long) nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
1444
1445 data2 = get_hwsim_data_ref_from_addr(src);
1446
1447 if (data2 == NULL)
1448 goto out;
1449
1450 /* look for the skb matching the cookie passed back from user */
1451 skb_queue_walk_safe(&data2->pending, skb, tmp) {
1452 if (skb == ret_skb) {
1453 skb_unlink(skb, &data2->pending);
1454 found = true;
1455 break;
1456 }
1457 }
1458
1459 /* not found */
1460 if (!found)
1461 goto out;
1462
1463 /* Tx info received because the frame was broadcasted on user space,
1464 so we get all the necessary info: tx attempts and skb control buff */
1465
1466 tx_attempts = (struct hwsim_tx_rate *)nla_data(
1467 info->attrs[HWSIM_ATTR_TX_INFO]);
1468
1469 /* now send back TX status */
1470 txi = IEEE80211_SKB_CB(skb);
1471
1472 if (txi->control.vif)
1473 hwsim_check_magic(txi->control.vif);
1474 if (txi->control.sta)
1475 hwsim_check_sta_magic(txi->control.sta);
1476
1477 ieee80211_tx_info_clear_status(txi);
1478
1479 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
1480 txi->status.rates[i].idx = tx_attempts[i].idx;
1481 txi->status.rates[i].count = tx_attempts[i].count;
1482 /*txi->status.rates[i].flags = 0;*/
1483 }
1484
1485 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
1486
1487 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
1488 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
1489 if (skb->len >= 16) {
1490 hdr = (struct ieee80211_hdr *) skb->data;
1491 mac80211_hwsim_monitor_ack(data2->hw, hdr->addr2);
1492 }
1493 }
1494 ieee80211_tx_status_irqsafe(data2->hw, skb);
1495 return 0;
1496 out:
1497 return -EINVAL;
1498
1499 }
1500
1501 static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
1502 struct genl_info *info)
1503 {
1504
1505 struct mac80211_hwsim_data *data2;
1506 struct ieee80211_rx_status rx_status;
1507 struct mac_address *dst;
1508 int frame_data_len;
1509 char *frame_data;
1510 struct sk_buff *skb = NULL;
1511
1512 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
1513 !info->attrs[HWSIM_ATTR_FRAME] ||
1514 !info->attrs[HWSIM_ATTR_RX_RATE] ||
1515 !info->attrs[HWSIM_ATTR_SIGNAL])
1516 goto out;
1517
1518 dst = (struct mac_address *)nla_data(
1519 info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
1520
1521 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
1522 frame_data = (char *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
1523
1524 /* Allocate new skb here */
1525 skb = alloc_skb(frame_data_len, GFP_KERNEL);
1526 if (skb == NULL)
1527 goto err;
1528
1529 if (frame_data_len <= IEEE80211_MAX_DATA_LEN) {
1530 /* Copy the data */
1531 memcpy(skb_put(skb, frame_data_len), frame_data,
1532 frame_data_len);
1533 } else
1534 goto err;
1535
1536 data2 = get_hwsim_data_ref_from_addr(dst);
1537
1538 if (data2 == NULL)
1539 goto out;
1540
1541 /* check if radio is configured properly */
1542
1543 if (data2->idle || !data2->started || !data2->channel)
1544 goto out;
1545
1546 /*A frame is received from user space*/
1547 memset(&rx_status, 0, sizeof(rx_status));
1548 rx_status.freq = data2->channel->center_freq;
1549 rx_status.band = data2->channel->band;
1550 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
1551 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
1552
1553 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
1554 ieee80211_rx_irqsafe(data2->hw, skb);
1555
1556 return 0;
1557 err:
1558 printk(KERN_DEBUG "mac80211_hwsim: error occured in %s\n", __func__);
1559 goto out;
1560 out:
1561 dev_kfree_skb(skb);
1562 return -EINVAL;
1563 }
1564
1565 static int hwsim_register_received_nl(struct sk_buff *skb_2,
1566 struct genl_info *info)
1567 {
1568 if (info == NULL)
1569 goto out;
1570
1571 wmediumd_pid = info->snd_pid;
1572
1573 printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
1574 "switching to wmediumd mode with pid %d\n", info->snd_pid);
1575
1576 return 0;
1577 out:
1578 printk(KERN_DEBUG "mac80211_hwsim: error occured in %s\n", __func__);
1579 return -EINVAL;
1580 }
1581
1582 /* Generic Netlink operations array */
1583 static struct genl_ops hwsim_ops[] = {
1584 {
1585 .cmd = HWSIM_CMD_REGISTER,
1586 .policy = hwsim_genl_policy,
1587 .doit = hwsim_register_received_nl,
1588 .flags = GENL_ADMIN_PERM,
1589 },
1590 {
1591 .cmd = HWSIM_CMD_FRAME,
1592 .policy = hwsim_genl_policy,
1593 .doit = hwsim_cloned_frame_received_nl,
1594 },
1595 {
1596 .cmd = HWSIM_CMD_TX_INFO_FRAME,
1597 .policy = hwsim_genl_policy,
1598 .doit = hwsim_tx_info_frame_received_nl,
1599 },
1600 };
1601
1602 static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
1603 unsigned long state,
1604 void *_notify)
1605 {
1606 struct netlink_notify *notify = _notify;
1607
1608 if (state != NETLINK_URELEASE)
1609 return NOTIFY_DONE;
1610
1611 if (notify->pid == wmediumd_pid) {
1612 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
1613 " socket, switching to perfect channel medium\n");
1614 wmediumd_pid = 0;
1615 }
1616 return NOTIFY_DONE;
1617
1618 }
1619
1620 static struct notifier_block hwsim_netlink_notifier = {
1621 .notifier_call = mac80211_hwsim_netlink_notify,
1622 };
1623
1624 static int hwsim_init_netlink(void)
1625 {
1626 int rc;
1627 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
1628
1629 wmediumd_pid = 0;
1630
1631 rc = genl_register_family_with_ops(&hwsim_genl_family,
1632 hwsim_ops, ARRAY_SIZE(hwsim_ops));
1633 if (rc)
1634 goto failure;
1635
1636 rc = netlink_register_notifier(&hwsim_netlink_notifier);
1637 if (rc)
1638 goto failure;
1639
1640 return 0;
1641
1642 failure:
1643 printk(KERN_DEBUG "mac80211_hwsim: error occured in %s\n", __func__);
1644 return -EINVAL;
1645 }
1646
1647 static void hwsim_exit_netlink(void)
1648 {
1649 int ret;
1650
1651 printk(KERN_INFO "mac80211_hwsim: closing netlink\n");
1652 /* unregister the notifier */
1653 netlink_unregister_notifier(&hwsim_netlink_notifier);
1654 /* unregister the family */
1655 ret = genl_unregister_family(&hwsim_genl_family);
1656 if (ret)
1657 printk(KERN_DEBUG "mac80211_hwsim: "
1658 "unregister family %i\n", ret);
1659 }
1660
1661 static int __init init_mac80211_hwsim(void)
1662 {
1663 int i, err = 0;
1664 u8 addr[ETH_ALEN];
1665 struct mac80211_hwsim_data *data;
1666 struct ieee80211_hw *hw;
1667 enum ieee80211_band band;
1668
1669 if (radios < 1 || radios > 100)
1670 return -EINVAL;
1671
1672 if (fake_hw_scan) {
1673 mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan;
1674 mac80211_hwsim_ops.sw_scan_start = NULL;
1675 mac80211_hwsim_ops.sw_scan_complete = NULL;
1676 }
1677
1678 spin_lock_init(&hwsim_radio_lock);
1679 INIT_LIST_HEAD(&hwsim_radios);
1680
1681 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
1682 if (IS_ERR(hwsim_class))
1683 return PTR_ERR(hwsim_class);
1684
1685 memset(addr, 0, ETH_ALEN);
1686 addr[0] = 0x02;
1687
1688 for (i = 0; i < radios; i++) {
1689 printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
1690 i);
1691 hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);
1692 if (!hw) {
1693 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
1694 "failed\n");
1695 err = -ENOMEM;
1696 goto failed;
1697 }
1698 data = hw->priv;
1699 data->hw = hw;
1700
1701 data->dev = device_create(hwsim_class, NULL, 0, hw,
1702 "hwsim%d", i);
1703 if (IS_ERR(data->dev)) {
1704 printk(KERN_DEBUG
1705 "mac80211_hwsim: device_create "
1706 "failed (%ld)\n", PTR_ERR(data->dev));
1707 err = -ENOMEM;
1708 goto failed_drvdata;
1709 }
1710 data->dev->driver = &mac80211_hwsim_driver;
1711 skb_queue_head_init(&data->pending);
1712
1713 SET_IEEE80211_DEV(hw, data->dev);
1714 addr[3] = i >> 8;
1715 addr[4] = i;
1716 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
1717 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
1718 data->addresses[1].addr[0] |= 0x40;
1719 hw->wiphy->n_addresses = 2;
1720 hw->wiphy->addresses = data->addresses;
1721
1722 if (fake_hw_scan) {
1723 hw->wiphy->max_scan_ssids = 255;
1724 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
1725 }
1726
1727 hw->channel_change_time = 1;
1728 hw->queues = 4;
1729 hw->wiphy->interface_modes =
1730 BIT(NL80211_IFTYPE_STATION) |
1731 BIT(NL80211_IFTYPE_AP) |
1732 BIT(NL80211_IFTYPE_P2P_CLIENT) |
1733 BIT(NL80211_IFTYPE_P2P_GO) |
1734 BIT(NL80211_IFTYPE_ADHOC) |
1735 BIT(NL80211_IFTYPE_MESH_POINT);
1736
1737 hw->flags = IEEE80211_HW_MFP_CAPABLE |
1738 IEEE80211_HW_SIGNAL_DBM |
1739 IEEE80211_HW_SUPPORTS_STATIC_SMPS |
1740 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
1741 IEEE80211_HW_AMPDU_AGGREGATION;
1742
1743 /* ask mac80211 to reserve space for magic */
1744 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
1745 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
1746
1747 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
1748 sizeof(hwsim_channels_2ghz));
1749 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
1750 sizeof(hwsim_channels_5ghz));
1751 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
1752
1753 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
1754 struct ieee80211_supported_band *sband = &data->bands[band];
1755 switch (band) {
1756 case IEEE80211_BAND_2GHZ:
1757 sband->channels = data->channels_2ghz;
1758 sband->n_channels =
1759 ARRAY_SIZE(hwsim_channels_2ghz);
1760 sband->bitrates = data->rates;
1761 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
1762 break;
1763 case IEEE80211_BAND_5GHZ:
1764 sband->channels = data->channels_5ghz;
1765 sband->n_channels =
1766 ARRAY_SIZE(hwsim_channels_5ghz);
1767 sband->bitrates = data->rates + 4;
1768 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
1769 break;
1770 default:
1771 break;
1772 }
1773
1774 sband->ht_cap.ht_supported = true;
1775 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
1776 IEEE80211_HT_CAP_GRN_FLD |
1777 IEEE80211_HT_CAP_SGI_40 |
1778 IEEE80211_HT_CAP_DSSSCCK40;
1779 sband->ht_cap.ampdu_factor = 0x3;
1780 sband->ht_cap.ampdu_density = 0x6;
1781 memset(&sband->ht_cap.mcs, 0,
1782 sizeof(sband->ht_cap.mcs));
1783 sband->ht_cap.mcs.rx_mask[0] = 0xff;
1784 sband->ht_cap.mcs.rx_mask[1] = 0xff;
1785 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1786
1787 hw->wiphy->bands[band] = sband;
1788 }
1789 /* By default all radios are belonging to the first group */
1790 data->group = 1;
1791 mutex_init(&data->mutex);
1792
1793 /* Enable frame retransmissions for lossy channels */
1794 hw->max_rates = 4;
1795 hw->max_rate_tries = 11;
1796
1797 /* Work to be done prior to ieee80211_register_hw() */
1798 switch (regtest) {
1799 case HWSIM_REGTEST_DISABLED:
1800 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
1801 case HWSIM_REGTEST_DRIVER_REG_ALL:
1802 case HWSIM_REGTEST_DIFF_COUNTRY:
1803 /*
1804 * Nothing to be done for driver regulatory domain
1805 * hints prior to ieee80211_register_hw()
1806 */
1807 break;
1808 case HWSIM_REGTEST_WORLD_ROAM:
1809 if (i == 0) {
1810 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1811 wiphy_apply_custom_regulatory(hw->wiphy,
1812 &hwsim_world_regdom_custom_01);
1813 }
1814 break;
1815 case HWSIM_REGTEST_CUSTOM_WORLD:
1816 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1817 wiphy_apply_custom_regulatory(hw->wiphy,
1818 &hwsim_world_regdom_custom_01);
1819 break;
1820 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1821 if (i == 0) {
1822 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1823 wiphy_apply_custom_regulatory(hw->wiphy,
1824 &hwsim_world_regdom_custom_01);
1825 } else if (i == 1) {
1826 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1827 wiphy_apply_custom_regulatory(hw->wiphy,
1828 &hwsim_world_regdom_custom_02);
1829 }
1830 break;
1831 case HWSIM_REGTEST_STRICT_ALL:
1832 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
1833 break;
1834 case HWSIM_REGTEST_STRICT_FOLLOW:
1835 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1836 if (i == 0)
1837 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
1838 break;
1839 case HWSIM_REGTEST_ALL:
1840 if (i == 0) {
1841 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1842 wiphy_apply_custom_regulatory(hw->wiphy,
1843 &hwsim_world_regdom_custom_01);
1844 } else if (i == 1) {
1845 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1846 wiphy_apply_custom_regulatory(hw->wiphy,
1847 &hwsim_world_regdom_custom_02);
1848 } else if (i == 4)
1849 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
1850 break;
1851 default:
1852 break;
1853 }
1854
1855 /* give the regulatory workqueue a chance to run */
1856 if (regtest)
1857 schedule_timeout_interruptible(1);
1858 err = ieee80211_register_hw(hw);
1859 if (err < 0) {
1860 printk(KERN_DEBUG "mac80211_hwsim: "
1861 "ieee80211_register_hw failed (%d)\n", err);
1862 goto failed_hw;
1863 }
1864
1865 /* Work to be done after to ieee80211_register_hw() */
1866 switch (regtest) {
1867 case HWSIM_REGTEST_WORLD_ROAM:
1868 case HWSIM_REGTEST_DISABLED:
1869 break;
1870 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
1871 if (!i)
1872 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1873 break;
1874 case HWSIM_REGTEST_DRIVER_REG_ALL:
1875 case HWSIM_REGTEST_STRICT_ALL:
1876 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1877 break;
1878 case HWSIM_REGTEST_DIFF_COUNTRY:
1879 if (i < ARRAY_SIZE(hwsim_alpha2s))
1880 regulatory_hint(hw->wiphy, hwsim_alpha2s[i]);
1881 break;
1882 case HWSIM_REGTEST_CUSTOM_WORLD:
1883 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1884 /*
1885 * Nothing to be done for custom world regulatory
1886 * domains after to ieee80211_register_hw
1887 */
1888 break;
1889 case HWSIM_REGTEST_STRICT_FOLLOW:
1890 if (i == 0)
1891 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1892 break;
1893 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1894 if (i == 0)
1895 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1896 else if (i == 1)
1897 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1898 break;
1899 case HWSIM_REGTEST_ALL:
1900 if (i == 2)
1901 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1902 else if (i == 3)
1903 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1904 else if (i == 4)
1905 regulatory_hint(hw->wiphy, hwsim_alpha2s[2]);
1906 break;
1907 default:
1908 break;
1909 }
1910
1911 wiphy_debug(hw->wiphy, "hwaddr %pm registered\n",
1912 hw->wiphy->perm_addr);
1913
1914 data->debugfs = debugfs_create_dir("hwsim",
1915 hw->wiphy->debugfsdir);
1916 data->debugfs_ps = debugfs_create_file("ps", 0666,
1917 data->debugfs, data,
1918 &hwsim_fops_ps);
1919 data->debugfs_group = debugfs_create_file("group", 0666,
1920 data->debugfs, data,
1921 &hwsim_fops_group);
1922
1923 setup_timer(&data->beacon_timer, mac80211_hwsim_beacon,
1924 (unsigned long) hw);
1925
1926 list_add_tail(&data->list, &hwsim_radios);
1927 }
1928
1929 hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
1930 if (hwsim_mon == NULL)
1931 goto failed;
1932
1933 rtnl_lock();
1934
1935 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
1936 if (err < 0)
1937 goto failed_mon;
1938
1939
1940 err = register_netdevice(hwsim_mon);
1941 if (err < 0)
1942 goto failed_mon;
1943
1944 rtnl_unlock();
1945
1946 err = hwsim_init_netlink();
1947 if (err < 0)
1948 goto failed_nl;
1949
1950 return 0;
1951
1952 failed_nl:
1953 printk(KERN_DEBUG "mac_80211_hwsim: failed initializing netlink\n");
1954 return err;
1955
1956 failed_mon:
1957 rtnl_unlock();
1958 free_netdev(hwsim_mon);
1959 mac80211_hwsim_free();
1960 return err;
1961
1962 failed_hw:
1963 device_unregister(data->dev);
1964 failed_drvdata:
1965 ieee80211_free_hw(hw);
1966 failed:
1967 mac80211_hwsim_free();
1968 return err;
1969 }
1970
1971
1972 static void __exit exit_mac80211_hwsim(void)
1973 {
1974 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
1975
1976 hwsim_exit_netlink();
1977
1978 mac80211_hwsim_free();
1979 unregister_netdev(hwsim_mon);
1980 }
1981
1982
1983 module_init(init_mac80211_hwsim);
1984 module_exit(exit_mac80211_hwsim);
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