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mac80211: Warn if the rate controller requests retries for a NO_ACK frame
[mirror_ubuntu-eoan-kernel.git] / drivers / net / wireless / mac80211_hwsim.c
CommitLineData
acc1e7a3
JM		 1/*
2 * mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211
3 * Copyright (c) 2008, Jouni Malinen <j@w1.fi>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
8 */
9
10/*
11 * TODO:
12 * - IBSS mode simulation (Beacon transmission with competition for "air time")
acc1e7a3
JM		 13 * - RX filtering based on filter configuration (data->rx_filter)
14 */
15
0e057d73
JB		 16#include <linux/list.h>
17#include <linux/spinlock.h>
acc1e7a3
JM		 18#include <net/mac80211.h>
19#include <net/ieee80211_radiotap.h>
20#include <linux/if_arp.h>
21#include <linux/rtnetlink.h>
22#include <linux/etherdevice.h>
fc6971d4 23#include <linux/debugfs.h>
acc1e7a3
JM		 24
25MODULE_AUTHOR("Jouni Malinen");
26MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
27MODULE_LICENSE("GPL");
28
29static int radios = 2;
30module_param(radios, int, 0444);
31MODULE_PARM_DESC(radios, "Number of simulated radios");
32
4a5af9c2
LR		 33/**
34 * enum hwsim_regtest - the type of regulatory tests we offer
35 *
36 * These are the different values you can use for the regtest
37 * module parameter. This is useful to help test world roaming
38 * and the driver regulatory_hint() call and combinations of these.
39 * If you want to do specific alpha2 regulatory domain tests simply
40 * use the userspace regulatory request as that will be respected as
41 * well without the need of this module parameter. This is designed
42 * only for testing the driver regulatory request, world roaming
43 * and all possible combinations.
44 *
45 * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
46 * this is the default value.
47 * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
48 * hint, only one driver regulatory hint will be sent as such the
49 * secondary radios are expected to follow.
50 * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
51 * request with all radios reporting the same regulatory domain.
52 * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
53 * different regulatory domains requests. Expected behaviour is for
54 * an intersection to occur but each device will still use their
55 * respective regulatory requested domains. Subsequent radios will
56 * use the resulting intersection.
57 * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We acomplish
58 * this by using a custom beacon-capable regulatory domain for the first
59 * radio. All other device world roam.
60 * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
61 * domain requests. All radios will adhere to this custom world regulatory
62 * domain.
63 * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
64 * domain requests. The first radio will adhere to the first custom world
65 * regulatory domain, the second one to the second custom world regulatory
66 * domain. All other devices will world roam.
67 * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain
68 * settings, only the first radio will send a regulatory domain request
69 * and use strict settings. The rest of the radios are expected to follow.
70 * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
71 * settings. All radios will adhere to this.
72 * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
73 * domain settings, combined with secondary driver regulatory domain
74 * settings. The first radio will get a strict regulatory domain setting
75 * using the first driver regulatory request and the second radio will use
76 * non-strict settings using the second driver regulatory request. All
77 * other devices should follow the intersection created between the
78 * first two.
79 * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
80 * at least 6 radios for a complete test. We will test in this order:
81 * 1 - driver custom world regulatory domain
82 * 2 - second custom world regulatory domain
83 * 3 - first driver regulatory domain request
84 * 4 - second driver regulatory domain request
85 * 5 - strict regulatory domain settings using the third driver regulatory
86 * domain request
87 * 6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
88 * regulatory requests.
89 */
90enum hwsim_regtest {
91 HWSIM_REGTEST_DISABLED = 0,
92 HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1,
93 HWSIM_REGTEST_DRIVER_REG_ALL = 2,
94 HWSIM_REGTEST_DIFF_COUNTRY = 3,
95 HWSIM_REGTEST_WORLD_ROAM = 4,
96 HWSIM_REGTEST_CUSTOM_WORLD = 5,
97 HWSIM_REGTEST_CUSTOM_WORLD_2 = 6,
98 HWSIM_REGTEST_STRICT_FOLLOW = 7,
99 HWSIM_REGTEST_STRICT_ALL = 8,
100 HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9,
101 HWSIM_REGTEST_ALL = 10,
102};
103
104/* Set to one of the HWSIM_REGTEST_* values above */
105static int regtest = HWSIM_REGTEST_DISABLED;
106module_param(regtest, int, 0444);
107MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run");
108
109static const char *hwsim_alpha2s[] = {
110 "FI",
111 "AL",
112 "US",
113 "DE",
114 "JP",
115 "AL",
116};
117
118static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = {
119 .n_reg_rules = 4,
120 .alpha2 = "99",
121 .reg_rules = {
122 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
123 REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
124 REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
125 REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
126 }
127};
128
129static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = {
130 .n_reg_rules = 2,
131 .alpha2 = "99",
132 .reg_rules = {
133 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
134 REG_RULE(5725-10, 5850+10, 40, 0, 30,
135 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
136 }
137};
138
8aa21e6f
JB		 139struct hwsim_vif_priv {
140 u32 magic;
fc6971d4
JM		 141 u8 bssid[ETH_ALEN];
142 bool assoc;
143 u16 aid;
8aa21e6f
JB		 144};
145
146#define HWSIM_VIF_MAGIC 0x69537748
147
148static inline void hwsim_check_magic(struct ieee80211_vif *vif)
149{
150 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
151 WARN_ON(vp->magic != HWSIM_VIF_MAGIC);
152}
153
154static inline void hwsim_set_magic(struct ieee80211_vif *vif)
155{
156 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
157 vp->magic = HWSIM_VIF_MAGIC;
158}
159
160static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
161{
162 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
163 vp->magic = 0;
164}
acc1e7a3 165
81c06523
JB		 166struct hwsim_sta_priv {
167 u32 magic;
168};
169
170#define HWSIM_STA_MAGIC 0x6d537748
171
172static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
173{
174 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
5d6924ea 175 WARN_ON(sp->magic != HWSIM_STA_MAGIC);
81c06523
JB		 176}
177
178static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
179{
180 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
5d6924ea 181 sp->magic = HWSIM_STA_MAGIC;
81c06523
JB		 182}
183
184static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
185{
186 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
187 sp->magic = 0;
188}
189
acc1e7a3
JM		 190static struct class *hwsim_class;
191
acc1e7a3
JM		 192static struct net_device *hwsim_mon; /* global monitor netdev */
193
22cad735
LR		 194#define CHAN2G(_freq) { \
195 .band = IEEE80211_BAND_2GHZ, \
196 .center_freq = (_freq), \
197 .hw_value = (_freq), \
198 .max_power = 20, \
199}
200
201#define CHAN5G(_freq) { \
202 .band = IEEE80211_BAND_5GHZ, \
203 .center_freq = (_freq), \
204 .hw_value = (_freq), \
205 .max_power = 20, \
206}
207
208static const struct ieee80211_channel hwsim_channels_2ghz[] = {
209 CHAN2G(2412), /* Channel 1 */
210 CHAN2G(2417), /* Channel 2 */
211 CHAN2G(2422), /* Channel 3 */
212 CHAN2G(2427), /* Channel 4 */
213 CHAN2G(2432), /* Channel 5 */
214 CHAN2G(2437), /* Channel 6 */
215 CHAN2G(2442), /* Channel 7 */
216 CHAN2G(2447), /* Channel 8 */
217 CHAN2G(2452), /* Channel 9 */
218 CHAN2G(2457), /* Channel 10 */
219 CHAN2G(2462), /* Channel 11 */
220 CHAN2G(2467), /* Channel 12 */
221 CHAN2G(2472), /* Channel 13 */
222 CHAN2G(2484), /* Channel 14 */
223};
acc1e7a3 224
22cad735
LR		 225static const struct ieee80211_channel hwsim_channels_5ghz[] = {
226 CHAN5G(5180), /* Channel 36 */
227 CHAN5G(5200), /* Channel 40 */
228 CHAN5G(5220), /* Channel 44 */
229 CHAN5G(5240), /* Channel 48 */
230
231 CHAN5G(5260), /* Channel 52 */
232 CHAN5G(5280), /* Channel 56 */
233 CHAN5G(5300), /* Channel 60 */
234 CHAN5G(5320), /* Channel 64 */
235
236 CHAN5G(5500), /* Channel 100 */
237 CHAN5G(5520), /* Channel 104 */
238 CHAN5G(5540), /* Channel 108 */
239 CHAN5G(5560), /* Channel 112 */
240 CHAN5G(5580), /* Channel 116 */
241 CHAN5G(5600), /* Channel 120 */
242 CHAN5G(5620), /* Channel 124 */
243 CHAN5G(5640), /* Channel 128 */
244 CHAN5G(5660), /* Channel 132 */
245 CHAN5G(5680), /* Channel 136 */
246 CHAN5G(5700), /* Channel 140 */
247
248 CHAN5G(5745), /* Channel 149 */
249 CHAN5G(5765), /* Channel 153 */
250 CHAN5G(5785), /* Channel 157 */
251 CHAN5G(5805), /* Channel 161 */
252 CHAN5G(5825), /* Channel 165 */
acc1e7a3
JM		 253};
254
255static const struct ieee80211_rate hwsim_rates[] = {
256 { .bitrate = 10 },
257 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
258 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
259 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
260 { .bitrate = 60 },
261 { .bitrate = 90 },
262 { .bitrate = 120 },
263 { .bitrate = 180 },
264 { .bitrate = 240 },
265 { .bitrate = 360 },
266 { .bitrate = 480 },
267 { .bitrate = 540 }
268};
269
0e057d73
JB		 270static spinlock_t hwsim_radio_lock;
271static struct list_head hwsim_radios;
272
acc1e7a3 273struct mac80211_hwsim_data {
0e057d73
JB		 274 struct list_head list;
275 struct ieee80211_hw *hw;
acc1e7a3 276 struct device *dev;
22cad735
LR		 277 struct ieee80211_supported_band bands[2];
278 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
279 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
acc1e7a3
JM		 280 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
281
282 struct ieee80211_channel *channel;
283 int radio_enabled;
284 unsigned long beacon_int; /* in jiffies unit */
285 unsigned int rx_filter;
286 int started;
287 struct timer_list beacon_timer;
fc6971d4
JM		 288 enum ps_mode {
289 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
290 } ps;
291 bool ps_poll_pending;
292 struct dentry *debugfs;
293 struct dentry *debugfs_ps;
acc1e7a3
JM		 294};
295
296
297struct hwsim_radiotap_hdr {
298 struct ieee80211_radiotap_header hdr;
299 u8 rt_flags;
300 u8 rt_rate;
301 __le16 rt_channel;
302 __le16 rt_chbitmask;
303} __attribute__ ((packed));
304
305
306static int hwsim_mon_xmit(struct sk_buff *skb, struct net_device *dev)
307{
308 /* TODO: allow packet injection */
309 dev_kfree_skb(skb);
310 return 0;
311}
312
313
314static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
315 struct sk_buff *tx_skb)
316{
317 struct mac80211_hwsim_data *data = hw->priv;
318 struct sk_buff *skb;
319 struct hwsim_radiotap_hdr *hdr;
320 u16 flags;
321 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
322 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
323
324 if (!netif_running(hwsim_mon))
325 return;
326
327 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
328 if (skb == NULL)
329 return;
330
331 hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
332 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
333 hdr->hdr.it_pad = 0;
334 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
f248f105
JM		 335 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
336 (1 << IEEE80211_RADIOTAP_RATE) |
337 (1 << IEEE80211_RADIOTAP_CHANNEL));
acc1e7a3
JM		 338 hdr->rt_flags = 0;
339 hdr->rt_rate = txrate->bitrate / 5;
df70b4ac 340 hdr->rt_channel = cpu_to_le16(data->channel->center_freq);
acc1e7a3
JM		 341 flags = IEEE80211_CHAN_2GHZ;
342 if (txrate->flags & IEEE80211_RATE_ERP_G)
343 flags |= IEEE80211_CHAN_OFDM;
344 else
345 flags |= IEEE80211_CHAN_CCK;
346 hdr->rt_chbitmask = cpu_to_le16(flags);
347
348 skb->dev = hwsim_mon;
349 skb_set_mac_header(skb, 0);
350 skb->ip_summed = CHECKSUM_UNNECESSARY;
351 skb->pkt_type = PACKET_OTHERHOST;
f248f105 352 skb->protocol = htons(ETH_P_802_2);
acc1e7a3
JM		 353 memset(skb->cb, 0, sizeof(skb->cb));
354 netif_rx(skb);
355}
356
357
fc6971d4
JM		 358static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
359 struct sk_buff *skb)
360{
361 switch (data->ps) {
362 case PS_DISABLED:
363 return true;
364 case PS_ENABLED:
365 return false;
366 case PS_AUTO_POLL:
367 /* TODO: accept (some) Beacons by default and other frames only
368 * if pending PS-Poll has been sent */
369 return true;
370 case PS_MANUAL_POLL:
371 /* Allow unicast frames to own address if there is a pending
372 * PS-Poll */
373 if (data->ps_poll_pending &&
374 memcmp(data->hw->wiphy->perm_addr, skb->data + 4,
375 ETH_ALEN) == 0) {
376 data->ps_poll_pending = false;
377 return true;
378 }
379 return false;
380 }
381
382 return true;
383}
384
385
0e057d73
JB		 386static bool mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
387 struct sk_buff *skb)
acc1e7a3 388{
0e057d73
JB		 389 struct mac80211_hwsim_data *data = hw->priv, *data2;
390 bool ack = false;
e36cfdc9 391 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
acc1e7a3 392 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
e36cfdc9 393 struct ieee80211_rx_status rx_status;
acc1e7a3
JM		 394
395 memset(&rx_status, 0, sizeof(rx_status));
396 /* TODO: set mactime */
397 rx_status.freq = data->channel->center_freq;
398 rx_status.band = data->channel->band;
e6a9854b 399 rx_status.rate_idx = info->control.rates[0].idx;
acc1e7a3
JM		 400 /* TODO: simulate signal strength (and optional packet drop) */
401
fc6971d4
JM		 402 if (data->ps != PS_DISABLED)
403 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
404
acc1e7a3 405 /* Copy skb to all enabled radios that are on the current frequency */
0e057d73
JB		 406 spin_lock(&hwsim_radio_lock);
407 list_for_each_entry(data2, &hwsim_radios, list) {
acc1e7a3
JM		 408 struct sk_buff *nskb;
409
0e057d73 410 if (data == data2)
acc1e7a3 411 continue;
0e057d73 412
acc1e7a3 413 if (!data2->started || !data2->radio_enabled ||
fc6971d4 414 !hwsim_ps_rx_ok(data2, skb) ||
acc1e7a3
JM		 415 data->channel->center_freq != data2->channel->center_freq)
416 continue;
417
418 nskb = skb_copy(skb, GFP_ATOMIC);
419 if (nskb == NULL)
420 continue;
421
0e057d73 422 if (memcmp(hdr->addr1, data2->hw->wiphy->perm_addr,
acc1e7a3 423 ETH_ALEN) == 0)
0e057d73
JB		 424 ack = true;
425 ieee80211_rx_irqsafe(data2->hw, nskb, &rx_status);
acc1e7a3 426 }
0e057d73 427 spin_unlock(&hwsim_radio_lock);
acc1e7a3 428
e36cfdc9
JM		 429 return ack;
430}
431
432
433static int mac80211_hwsim_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
434{
435 struct mac80211_hwsim_data *data = hw->priv;
0e057d73 436 bool ack;
e36cfdc9
JM		 437 struct ieee80211_tx_info *txi;
438
439 mac80211_hwsim_monitor_rx(hw, skb);
440
441 if (skb->len < 10) {
442 /* Should not happen; just a sanity check for addr1 use */
443 dev_kfree_skb(skb);
444 return NETDEV_TX_OK;
445 }
446
447 if (!data->radio_enabled) {
448 printk(KERN_DEBUG "%s: dropped TX frame since radio "
449 "disabled\n", wiphy_name(hw->wiphy));
450 dev_kfree_skb(skb);
451 return NETDEV_TX_OK;
452 }
453
454 ack = mac80211_hwsim_tx_frame(hw, skb);
455
acc1e7a3 456 txi = IEEE80211_SKB_CB(skb);
8aa21e6f 457
25d834e1
JB		 458 if (txi->control.vif)
459 hwsim_check_magic(txi->control.vif);
81c06523
JB		 460 if (txi->control.sta)
461 hwsim_check_sta_magic(txi->control.sta);
8aa21e6f 462
e6a9854b
JB		 463 ieee80211_tx_info_clear_status(txi);
464 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
465 txi->flags |= IEEE80211_TX_STAT_ACK;
acc1e7a3
JM		 466 ieee80211_tx_status_irqsafe(hw, skb);
467 return NETDEV_TX_OK;
468}
469
470
471static int mac80211_hwsim_start(struct ieee80211_hw *hw)
472{
473 struct mac80211_hwsim_data *data = hw->priv;
474 printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
475 data->started = 1;
476 return 0;
477}
478
479
480static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
481{
482 struct mac80211_hwsim_data *data = hw->priv;
483 data->started = 0;
ab1ef980 484 del_timer(&data->beacon_timer);
acc1e7a3
JM		 485 printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
486}
487
488
489static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
490 struct ieee80211_if_init_conf *conf)
491{
e174961c 492 printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%pM)\n",
acc1e7a3 493 wiphy_name(hw->wiphy), __func__, conf->type,
e174961c 494 conf->mac_addr);
8aa21e6f 495 hwsim_set_magic(conf->vif);
acc1e7a3
JM		 496 return 0;
497}
498
499
500static void mac80211_hwsim_remove_interface(
501 struct ieee80211_hw *hw, struct ieee80211_if_init_conf *conf)
502{
e174961c 503 printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%pM)\n",
acc1e7a3 504 wiphy_name(hw->wiphy), __func__, conf->type,
e174961c 505 conf->mac_addr);
8aa21e6f
JB		 506 hwsim_check_magic(conf->vif);
507 hwsim_clear_magic(conf->vif);
acc1e7a3
JM		 508}
509
510
511static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
512 struct ieee80211_vif *vif)
513{
514 struct ieee80211_hw *hw = arg;
acc1e7a3 515 struct sk_buff *skb;
acc1e7a3
JM		 516 struct ieee80211_tx_info *info;
517
8aa21e6f
JB		 518 hwsim_check_magic(vif);
519
55b39619
AY		 520 if (vif->type != NL80211_IFTYPE_AP &&
521 vif->type != NL80211_IFTYPE_MESH_POINT)
acc1e7a3
JM		 522 return;
523
524 skb = ieee80211_beacon_get(hw, vif);
525 if (skb == NULL)
526 return;
527 info = IEEE80211_SKB_CB(skb);
528
529 mac80211_hwsim_monitor_rx(hw, skb);
e36cfdc9 530 mac80211_hwsim_tx_frame(hw, skb);
acc1e7a3
JM		 531 dev_kfree_skb(skb);
532}
533
534
535static void mac80211_hwsim_beacon(unsigned long arg)
536{
537 struct ieee80211_hw *hw = (struct ieee80211_hw *) arg;
538 struct mac80211_hwsim_data *data = hw->priv;
539
540 if (!data->started || !data->radio_enabled)
541 return;
542
f248f105
JM		 543 ieee80211_iterate_active_interfaces_atomic(
544 hw, mac80211_hwsim_beacon_tx, hw);
acc1e7a3
JM		 545
546 data->beacon_timer.expires = jiffies + data->beacon_int;
547 add_timer(&data->beacon_timer);
548}
549
550
e8975581 551static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
acc1e7a3
JM		 552{
553 struct mac80211_hwsim_data *data = hw->priv;
e8975581 554 struct ieee80211_conf *conf = &hw->conf;
acc1e7a3 555
57c4d7b4 556 printk(KERN_DEBUG "%s:%s (freq=%d radio_enabled=%d)\n",
acc1e7a3 557 wiphy_name(hw->wiphy), __func__,
57c4d7b4 558 conf->channel->center_freq, conf->radio_enabled);
acc1e7a3
JM		 559
560 data->channel = conf->channel;
561 data->radio_enabled = conf->radio_enabled;
57c4d7b4 562 if (!data->started || !data->radio_enabled || !data->beacon_int)
acc1e7a3
JM		 563 del_timer(&data->beacon_timer);
564 else
565 mod_timer(&data->beacon_timer, jiffies + data->beacon_int);
566
567 return 0;
568}
569
570
571static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
572 unsigned int changed_flags,
573 unsigned int *total_flags,
574 int mc_count,
575 struct dev_addr_list *mc_list)
576{
577 struct mac80211_hwsim_data *data = hw->priv;
578
579 printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
580
581 data->rx_filter = 0;
582 if (*total_flags & FIF_PROMISC_IN_BSS)
583 data->rx_filter |= FIF_PROMISC_IN_BSS;
584 if (*total_flags & FIF_ALLMULTI)
585 data->rx_filter |= FIF_ALLMULTI;
586
587 *total_flags = data->rx_filter;
588}
589
8aa21e6f
JB		 590static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
591 struct ieee80211_vif *vif,
592 struct ieee80211_bss_conf *info,
593 u32 changed)
594{
fc6971d4 595 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
57c4d7b4 596 struct mac80211_hwsim_data *data = hw->priv;
fc6971d4 597
8aa21e6f 598 hwsim_check_magic(vif);
fe63bfa3
JM		 599
600 printk(KERN_DEBUG "%s:%s(changed=0x%x)\n",
601 wiphy_name(hw->wiphy), __func__, changed);
602
2d0ddec5
JB		 603 if (changed & BSS_CHANGED_BSSID) {
604 printk(KERN_DEBUG "%s:%s: BSSID changed: %pM\n",
605 wiphy_name(hw->wiphy), __func__,
606 info->bssid);
607 memcpy(vp->bssid, info->bssid, ETH_ALEN);
608 }
609
fe63bfa3
JM		 610 if (changed & BSS_CHANGED_ASSOC) {
611 printk(KERN_DEBUG " %s: ASSOC: assoc=%d aid=%d\n",
612 wiphy_name(hw->wiphy), info->assoc, info->aid);
fc6971d4
JM		 613 vp->assoc = info->assoc;
614 vp->aid = info->aid;
fe63bfa3
JM		 615 }
616
57c4d7b4
JB		 617 if (changed & BSS_CHANGED_BEACON_INT) {
618 printk(KERN_DEBUG " %s: BCNINT: %d\n",
619 wiphy_name(hw->wiphy), info->beacon_int);
620 data->beacon_int = 1024 * info->beacon_int / 1000 * HZ / 1000;
d91f190c 621 if (WARN_ON(!data->beacon_int))
57c4d7b4
JB		 622 data->beacon_int = 1;
623 }
624
fe63bfa3
JM		 625 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
626 printk(KERN_DEBUG " %s: ERP_CTS_PROT: %d\n",
627 wiphy_name(hw->wiphy), info->use_cts_prot);
628 }
629
630 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
631 printk(KERN_DEBUG " %s: ERP_PREAMBLE: %d\n",
632 wiphy_name(hw->wiphy), info->use_short_preamble);
633 }
634
635 if (changed & BSS_CHANGED_ERP_SLOT) {
636 printk(KERN_DEBUG " %s: ERP_SLOT: %d\n",
637 wiphy_name(hw->wiphy), info->use_short_slot);
638 }
639
640 if (changed & BSS_CHANGED_HT) {
094d05dc 641 printk(KERN_DEBUG " %s: HT: op_mode=0x%x\n",
fe63bfa3 642 wiphy_name(hw->wiphy),
094d05dc 643 info->ht.operation_mode);
fe63bfa3
JM		 644 }
645
646 if (changed & BSS_CHANGED_BASIC_RATES) {
647 printk(KERN_DEBUG " %s: BASIC_RATES: 0x%llx\n",
648 wiphy_name(hw->wiphy),
649 (unsigned long long) info->basic_rates);
650 }
8aa21e6f
JB		 651}
652
653static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
654 struct ieee80211_vif *vif,
17741cdc
JB		 655 enum sta_notify_cmd cmd,
656 struct ieee80211_sta *sta)
8aa21e6f
JB		 657{
658 hwsim_check_magic(vif);
81c06523
JB		 659 switch (cmd) {
660 case STA_NOTIFY_ADD:
661 hwsim_set_sta_magic(sta);
662 break;
663 case STA_NOTIFY_REMOVE:
664 hwsim_clear_sta_magic(sta);
665 break;
89fad578
CL		 666 case STA_NOTIFY_SLEEP:
667 case STA_NOTIFY_AWAKE:
668 /* TODO: make good use of these flags */
669 break;
81c06523
JB		 670 }
671}
672
673static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
674 struct ieee80211_sta *sta,
675 bool set)
676{
677 hwsim_check_sta_magic(sta);
678 return 0;
8aa21e6f 679}
acc1e7a3 680
1e898ff8
JM		 681static int mac80211_hwsim_conf_tx(
682 struct ieee80211_hw *hw, u16 queue,
683 const struct ieee80211_tx_queue_params *params)
684{
685 printk(KERN_DEBUG "%s:%s (queue=%d txop=%d cw_min=%d cw_max=%d "
686 "aifs=%d)\n",
687 wiphy_name(hw->wiphy), __func__, queue,
688 params->txop, params->cw_min, params->cw_max, params->aifs);
689 return 0;
690}
691
acc1e7a3
JM		 692static const struct ieee80211_ops mac80211_hwsim_ops =
693{
694 .tx = mac80211_hwsim_tx,
695 .start = mac80211_hwsim_start,
696 .stop = mac80211_hwsim_stop,
697 .add_interface = mac80211_hwsim_add_interface,
698 .remove_interface = mac80211_hwsim_remove_interface,
699 .config = mac80211_hwsim_config,
700 .configure_filter = mac80211_hwsim_configure_filter,
8aa21e6f
JB		 701 .bss_info_changed = mac80211_hwsim_bss_info_changed,
702 .sta_notify = mac80211_hwsim_sta_notify,
81c06523 703 .set_tim = mac80211_hwsim_set_tim,
1e898ff8 704 .conf_tx = mac80211_hwsim_conf_tx,
acc1e7a3
JM		 705};
706
707
708static void mac80211_hwsim_free(void)
709{
0e057d73
JB		 710 struct list_head tmplist, *i, *tmp;
711 struct mac80211_hwsim_data *data;
712
713 INIT_LIST_HEAD(&tmplist);
714
715 spin_lock_bh(&hwsim_radio_lock);
716 list_for_each_safe(i, tmp, &hwsim_radios)
717 list_move(i, &tmplist);
718 spin_unlock_bh(&hwsim_radio_lock);
719
720 list_for_each_entry(data, &tmplist, list) {
fc6971d4
JM		 721 debugfs_remove(data->debugfs_ps);
722 debugfs_remove(data->debugfs);
0e057d73
JB		 723 ieee80211_unregister_hw(data->hw);
724 device_unregister(data->dev);
725 ieee80211_free_hw(data->hw);
acc1e7a3 726 }
acc1e7a3
JM		 727 class_destroy(hwsim_class);
728}
729
730
731static struct device_driver mac80211_hwsim_driver = {
732 .name = "mac80211_hwsim"
733};
734
98d2faae
SH		 735static const struct net_device_ops hwsim_netdev_ops = {
736 .ndo_start_xmit = hwsim_mon_xmit,
737 .ndo_change_mtu = eth_change_mtu,
738 .ndo_set_mac_address = eth_mac_addr,
739 .ndo_validate_addr = eth_validate_addr,
740};
acc1e7a3
JM		 741
742static void hwsim_mon_setup(struct net_device *dev)
743{
98d2faae 744 dev->netdev_ops = &hwsim_netdev_ops;
acc1e7a3
JM		 745 dev->destructor = free_netdev;
746 ether_setup(dev);
747 dev->tx_queue_len = 0;
748 dev->type = ARPHRD_IEEE80211_RADIOTAP;
749 memset(dev->dev_addr, 0, ETH_ALEN);
750 dev->dev_addr[0] = 0x12;
751}
752
753
fc6971d4
JM		 754static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
755{
756 struct mac80211_hwsim_data *data = dat;
757 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
758 DECLARE_MAC_BUF(buf);
759 struct sk_buff *skb;
760 struct ieee80211_pspoll *pspoll;
761
762 if (!vp->assoc)
763 return;
764
b235507c
JL		 765 printk(KERN_DEBUG "%s:%s: send PS-Poll to %pM for aid %d\n",
766 wiphy_name(data->hw->wiphy), __func__, vp->bssid, vp->aid);
fc6971d4
JM		 767
768 skb = dev_alloc_skb(sizeof(*pspoll));
769 if (!skb)
770 return;
771 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
772 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
773 IEEE80211_STYPE_PSPOLL |
774 IEEE80211_FCTL_PM);
775 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
776 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
777 memcpy(pspoll->ta, mac, ETH_ALEN);
778 if (data->radio_enabled &&
779 !mac80211_hwsim_tx_frame(data->hw, skb))
780 printk(KERN_DEBUG "%s: PS-Poll frame not ack'ed\n", __func__);
781 dev_kfree_skb(skb);
782}
783
784
785static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
786 struct ieee80211_vif *vif, int ps)
787{
788 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
789 DECLARE_MAC_BUF(buf);
790 struct sk_buff *skb;
791 struct ieee80211_hdr *hdr;
792
793 if (!vp->assoc)
794 return;
795
b235507c
JL		 796 printk(KERN_DEBUG "%s:%s: send data::nullfunc to %pM ps=%d\n",
797 wiphy_name(data->hw->wiphy), __func__, vp->bssid, ps);
fc6971d4
JM		 798
799 skb = dev_alloc_skb(sizeof(*hdr));
800 if (!skb)
801 return;
802 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
803 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
804 IEEE80211_STYPE_NULLFUNC |
805 (ps ? IEEE80211_FCTL_PM : 0));
806 hdr->duration_id = cpu_to_le16(0);
807 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
808 memcpy(hdr->addr2, mac, ETH_ALEN);
809 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
810 if (data->radio_enabled &&
811 !mac80211_hwsim_tx_frame(data->hw, skb))
812 printk(KERN_DEBUG "%s: nullfunc frame not ack'ed\n", __func__);
813 dev_kfree_skb(skb);
814}
815
816
817static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
818 struct ieee80211_vif *vif)
819{
820 struct mac80211_hwsim_data *data = dat;
821 hwsim_send_nullfunc(data, mac, vif, 1);
822}
823
824
825static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
826 struct ieee80211_vif *vif)
827{
828 struct mac80211_hwsim_data *data = dat;
829 hwsim_send_nullfunc(data, mac, vif, 0);
830}
831
832
833static int hwsim_fops_ps_read(void *dat, u64 *val)
834{
835 struct mac80211_hwsim_data *data = dat;
836 *val = data->ps;
837 return 0;
838}
839
840static int hwsim_fops_ps_write(void *dat, u64 val)
841{
842 struct mac80211_hwsim_data *data = dat;
843 enum ps_mode old_ps;
844
845 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
846 val != PS_MANUAL_POLL)
847 return -EINVAL;
848
849 old_ps = data->ps;
850 data->ps = val;
851
852 if (val == PS_MANUAL_POLL) {
853 ieee80211_iterate_active_interfaces(data->hw,
854 hwsim_send_ps_poll, data);
855 data->ps_poll_pending = true;
856 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
857 ieee80211_iterate_active_interfaces(data->hw,
858 hwsim_send_nullfunc_ps,
859 data);
860 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
861 ieee80211_iterate_active_interfaces(data->hw,
862 hwsim_send_nullfunc_no_ps,
863 data);
864 }
865
866 return 0;
867}
868
869DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
870 "%llu\n");
871
872
acc1e7a3
JM		 873static int __init init_mac80211_hwsim(void)
874{
875 int i, err = 0;
876 u8 addr[ETH_ALEN];
877 struct mac80211_hwsim_data *data;
878 struct ieee80211_hw *hw;
22cad735 879 enum ieee80211_band band;
acc1e7a3 880
0e057d73 881 if (radios < 1 || radios > 100)
acc1e7a3
JM		 882 return -EINVAL;
883
0e057d73
JB		 884 spin_lock_init(&hwsim_radio_lock);
885 INIT_LIST_HEAD(&hwsim_radios);
acc1e7a3
JM		 886
887 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
0e057d73 888 if (IS_ERR(hwsim_class))
acc1e7a3 889 return PTR_ERR(hwsim_class);
acc1e7a3
JM		 890
891 memset(addr, 0, ETH_ALEN);
892 addr[0] = 0x02;
893
0e057d73 894 for (i = 0; i < radios; i++) {
acc1e7a3
JM		 895 printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
896 i);
897 hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);
0e057d73 898 if (!hw) {
acc1e7a3
JM		 899 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
900 "failed\n");
901 err = -ENOMEM;
902 goto failed;
903 }
acc1e7a3 904 data = hw->priv;
0e057d73
JB		 905 data->hw = hw;
906
6e05d6c4
GKH		 907 data->dev = device_create(hwsim_class, NULL, 0, hw,
908 "hwsim%d", i);
acc1e7a3 909 if (IS_ERR(data->dev)) {
e800f17c 910 printk(KERN_DEBUG
6e05d6c4 911 "mac80211_hwsim: device_create "
acc1e7a3
JM		 912 "failed (%ld)\n", PTR_ERR(data->dev));
913 err = -ENOMEM;
3a33cc10 914 goto failed_drvdata;
acc1e7a3
JM		 915 }
916 data->dev->driver = &mac80211_hwsim_driver;
acc1e7a3
JM		 917
918 SET_IEEE80211_DEV(hw, data->dev);
919 addr[3] = i >> 8;
920 addr[4] = i;
921 SET_IEEE80211_PERM_ADDR(hw, addr);
922
923 hw->channel_change_time = 1;
87e8b64e 924 hw->queues = 4;
f59ac048
LR		 925 hw->wiphy->interface_modes =
926 BIT(NL80211_IFTYPE_STATION) |
55b39619
AY		 927 BIT(NL80211_IFTYPE_AP) |
928 BIT(NL80211_IFTYPE_MESH_POINT);
acc1e7a3 929
fa77533e
JM		 930 hw->flags = IEEE80211_HW_MFP_CAPABLE;
931
8aa21e6f
JB		 932 /* ask mac80211 to reserve space for magic */
933 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
81c06523 934 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
8aa21e6f 935
22cad735
LR		 936 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
937 sizeof(hwsim_channels_2ghz));
938 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
939 sizeof(hwsim_channels_5ghz));
acc1e7a3 940 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
22cad735
LR		 941
942 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
943 struct ieee80211_supported_band *sband = &data->bands[band];
944 switch (band) {
945 case IEEE80211_BAND_2GHZ:
946 sband->channels = data->channels_2ghz;
947 sband->n_channels =
948 ARRAY_SIZE(hwsim_channels_2ghz);
949 break;
950 case IEEE80211_BAND_5GHZ:
951 sband->channels = data->channels_5ghz;
952 sband->n_channels =
953 ARRAY_SIZE(hwsim_channels_5ghz);
954 break;
955 default:
956 break;
957 }
958
959 sband->bitrates = data->rates;
960 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
961
962 sband->ht_cap.ht_supported = true;
963 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
964 IEEE80211_HT_CAP_GRN_FLD |
965 IEEE80211_HT_CAP_SGI_40 |
966 IEEE80211_HT_CAP_DSSSCCK40;
967 sband->ht_cap.ampdu_factor = 0x3;
968 sband->ht_cap.ampdu_density = 0x6;
969 memset(&sband->ht_cap.mcs, 0,
970 sizeof(sband->ht_cap.mcs));
971 sband->ht_cap.mcs.rx_mask[0] = 0xff;
972 sband->ht_cap.mcs.rx_mask[1] = 0xff;
973 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
974
975 hw->wiphy->bands[band] = sband;
976 }
acc1e7a3 977
4a5af9c2
LR		 978 /* Work to be done prior to ieee80211_register_hw() */
979 switch (regtest) {
980 case HWSIM_REGTEST_DISABLED:
981 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
982 case HWSIM_REGTEST_DRIVER_REG_ALL:
983 case HWSIM_REGTEST_DIFF_COUNTRY:
984 /*
985 * Nothing to be done for driver regulatory domain
986 * hints prior to ieee80211_register_hw()
987 */
988 break;
989 case HWSIM_REGTEST_WORLD_ROAM:
990 if (i == 0) {
991 hw->wiphy->custom_regulatory = true;
992 wiphy_apply_custom_regulatory(hw->wiphy,
993 &hwsim_world_regdom_custom_01);
994 }
995 break;
996 case HWSIM_REGTEST_CUSTOM_WORLD:
997 hw->wiphy->custom_regulatory = true;
998 wiphy_apply_custom_regulatory(hw->wiphy,
999 &hwsim_world_regdom_custom_01);
1000 break;
1001 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1002 if (i == 0) {
1003 hw->wiphy->custom_regulatory = true;
1004 wiphy_apply_custom_regulatory(hw->wiphy,
1005 &hwsim_world_regdom_custom_01);
1006 } else if (i == 1) {
1007 hw->wiphy->custom_regulatory = true;
1008 wiphy_apply_custom_regulatory(hw->wiphy,
1009 &hwsim_world_regdom_custom_02);
1010 }
1011 break;
1012 case HWSIM_REGTEST_STRICT_ALL:
1013 hw->wiphy->strict_regulatory = true;
1014 break;
1015 case HWSIM_REGTEST_STRICT_FOLLOW:
1016 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1017 if (i == 0)
1018 hw->wiphy->strict_regulatory = true;
1019 break;
1020 case HWSIM_REGTEST_ALL:
1021 if (i == 0) {
1022 hw->wiphy->custom_regulatory = true;
1023 wiphy_apply_custom_regulatory(hw->wiphy,
1024 &hwsim_world_regdom_custom_01);
1025 } else if (i == 1) {
1026 hw->wiphy->custom_regulatory = true;
1027 wiphy_apply_custom_regulatory(hw->wiphy,
1028 &hwsim_world_regdom_custom_02);
1029 } else if (i == 4)
1030 hw->wiphy->strict_regulatory = true;
1031 break;
1032 default:
1033 break;
1034 }
1035
98dfaa57
LR		 1036 /* give the regulatory workqueue a chance to run */
1037 if (regtest)
1038 schedule_timeout_interruptible(1);
acc1e7a3
JM		 1039 err = ieee80211_register_hw(hw);
1040 if (err < 0) {
1041 printk(KERN_DEBUG "mac80211_hwsim: "
1042 "ieee80211_register_hw failed (%d)\n", err);
3a33cc10 1043 goto failed_hw;
acc1e7a3
JM		 1044 }
1045
4a5af9c2
LR		 1046 /* Work to be done after to ieee80211_register_hw() */
1047 switch (regtest) {
1048 case HWSIM_REGTEST_WORLD_ROAM:
1049 case HWSIM_REGTEST_DISABLED:
1050 break;
1051 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
1052 if (!i)
1053 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1054 break;
1055 case HWSIM_REGTEST_DRIVER_REG_ALL:
1056 case HWSIM_REGTEST_STRICT_ALL:
1057 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1058 break;
1059 case HWSIM_REGTEST_DIFF_COUNTRY:
1060 if (i < ARRAY_SIZE(hwsim_alpha2s))
1061 regulatory_hint(hw->wiphy, hwsim_alpha2s[i]);
1062 break;
1063 case HWSIM_REGTEST_CUSTOM_WORLD:
1064 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1065 /*
1066 * Nothing to be done for custom world regulatory
1067 * domains after to ieee80211_register_hw
1068 */
1069 break;
1070 case HWSIM_REGTEST_STRICT_FOLLOW:
1071 if (i == 0)
1072 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1073 break;
1074 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1075 if (i == 0)
1076 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1077 else if (i == 1)
1078 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1079 break;
1080 case HWSIM_REGTEST_ALL:
1081 if (i == 2)
1082 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1083 else if (i == 3)
1084 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1085 else if (i == 4)
1086 regulatory_hint(hw->wiphy, hwsim_alpha2s[2]);
1087 break;
1088 default:
1089 break;
1090 }
1091
e174961c 1092 printk(KERN_DEBUG "%s: hwaddr %pM registered\n",
acc1e7a3 1093 wiphy_name(hw->wiphy),
e174961c 1094 hw->wiphy->perm_addr);
acc1e7a3 1095
fc6971d4
JM		 1096 data->debugfs = debugfs_create_dir("hwsim",
1097 hw->wiphy->debugfsdir);
1098 data->debugfs_ps = debugfs_create_file("ps", 0666,
1099 data->debugfs, data,
1100 &hwsim_fops_ps);
1101
acc1e7a3
JM		 1102 setup_timer(&data->beacon_timer, mac80211_hwsim_beacon,
1103 (unsigned long) hw);
0e057d73
JB		 1104
1105 list_add_tail(&data->list, &hwsim_radios);
acc1e7a3
JM		 1106 }
1107
1108 hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
1109 if (hwsim_mon == NULL)
1110 goto failed;
1111
1112 rtnl_lock();
1113
1114 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
3a33cc10 1115 if (err < 0)
acc1e7a3 1116 goto failed_mon;
3a33cc10 1117
acc1e7a3
JM		 1118
1119 err = register_netdevice(hwsim_mon);
1120 if (err < 0)
1121 goto failed_mon;
1122
1123 rtnl_unlock();
1124
1125 return 0;
1126
1127failed_mon:
1128 rtnl_unlock();
1129 free_netdev(hwsim_mon);
3a33cc10
IS		 1130 mac80211_hwsim_free();
1131 return err;
acc1e7a3 1132
3a33cc10
IS		 1133failed_hw:
1134 device_unregister(data->dev);
1135failed_drvdata:
1136 ieee80211_free_hw(hw);
acc1e7a3
JM		 1137failed:
1138 mac80211_hwsim_free();
1139 return err;
1140}
1141
1142
1143static void __exit exit_mac80211_hwsim(void)
1144{
0e057d73 1145 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
acc1e7a3
JM		 1146
1147 unregister_netdev(hwsim_mon);
1148 mac80211_hwsim_free();
1149}
1150
1151
1152module_init(init_mac80211_hwsim);
1153module_exit(exit_mac80211_hwsim);
Ubuntu Eoan Linux kernel mirror