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Commit | Line | Data |
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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") | |
13 | * - IEEE 802.11a and 802.11n modes | |
14 | * - RX filtering based on filter configuration (data->rx_filter) | |
15 | */ | |
16 | ||
17 | #include <net/mac80211.h> | |
18 | #include <net/ieee80211_radiotap.h> | |
19 | #include <linux/if_arp.h> | |
20 | #include <linux/rtnetlink.h> | |
21 | #include <linux/etherdevice.h> | |
22 | ||
23 | MODULE_AUTHOR("Jouni Malinen"); | |
24 | MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211"); | |
25 | MODULE_LICENSE("GPL"); | |
26 | ||
27 | static int radios = 2; | |
28 | module_param(radios, int, 0444); | |
29 | MODULE_PARM_DESC(radios, "Number of simulated radios"); | |
30 | ||
8aa21e6f JB |
31 | struct hwsim_vif_priv { |
32 | u32 magic; | |
33 | }; | |
34 | ||
35 | #define HWSIM_VIF_MAGIC 0x69537748 | |
36 | ||
37 | static inline void hwsim_check_magic(struct ieee80211_vif *vif) | |
38 | { | |
39 | struct hwsim_vif_priv *vp = (void *)vif->drv_priv; | |
40 | WARN_ON(vp->magic != HWSIM_VIF_MAGIC); | |
41 | } | |
42 | ||
43 | static inline void hwsim_set_magic(struct ieee80211_vif *vif) | |
44 | { | |
45 | struct hwsim_vif_priv *vp = (void *)vif->drv_priv; | |
46 | vp->magic = HWSIM_VIF_MAGIC; | |
47 | } | |
48 | ||
49 | static inline void hwsim_clear_magic(struct ieee80211_vif *vif) | |
50 | { | |
51 | struct hwsim_vif_priv *vp = (void *)vif->drv_priv; | |
52 | vp->magic = 0; | |
53 | } | |
acc1e7a3 JM |
54 | |
55 | static struct class *hwsim_class; | |
56 | ||
57 | static struct ieee80211_hw **hwsim_radios; | |
58 | static int hwsim_radio_count; | |
59 | static struct net_device *hwsim_mon; /* global monitor netdev */ | |
60 | ||
61 | ||
62 | static const struct ieee80211_channel hwsim_channels[] = { | |
63 | { .center_freq = 2412 }, | |
64 | { .center_freq = 2417 }, | |
65 | { .center_freq = 2422 }, | |
66 | { .center_freq = 2427 }, | |
67 | { .center_freq = 2432 }, | |
68 | { .center_freq = 2437 }, | |
69 | { .center_freq = 2442 }, | |
70 | { .center_freq = 2447 }, | |
71 | { .center_freq = 2452 }, | |
72 | { .center_freq = 2457 }, | |
73 | { .center_freq = 2462 }, | |
74 | { .center_freq = 2467 }, | |
75 | { .center_freq = 2472 }, | |
76 | { .center_freq = 2484 }, | |
77 | }; | |
78 | ||
79 | static const struct ieee80211_rate hwsim_rates[] = { | |
80 | { .bitrate = 10 }, | |
81 | { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
82 | { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
83 | { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
84 | { .bitrate = 60 }, | |
85 | { .bitrate = 90 }, | |
86 | { .bitrate = 120 }, | |
87 | { .bitrate = 180 }, | |
88 | { .bitrate = 240 }, | |
89 | { .bitrate = 360 }, | |
90 | { .bitrate = 480 }, | |
91 | { .bitrate = 540 } | |
92 | }; | |
93 | ||
94 | struct mac80211_hwsim_data { | |
95 | struct device *dev; | |
96 | struct ieee80211_supported_band band; | |
97 | struct ieee80211_channel channels[ARRAY_SIZE(hwsim_channels)]; | |
98 | struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)]; | |
99 | ||
100 | struct ieee80211_channel *channel; | |
101 | int radio_enabled; | |
102 | unsigned long beacon_int; /* in jiffies unit */ | |
103 | unsigned int rx_filter; | |
104 | int started; | |
105 | struct timer_list beacon_timer; | |
106 | }; | |
107 | ||
108 | ||
109 | struct hwsim_radiotap_hdr { | |
110 | struct ieee80211_radiotap_header hdr; | |
111 | u8 rt_flags; | |
112 | u8 rt_rate; | |
113 | __le16 rt_channel; | |
114 | __le16 rt_chbitmask; | |
115 | } __attribute__ ((packed)); | |
116 | ||
117 | ||
118 | static int hwsim_mon_xmit(struct sk_buff *skb, struct net_device *dev) | |
119 | { | |
120 | /* TODO: allow packet injection */ | |
121 | dev_kfree_skb(skb); | |
122 | return 0; | |
123 | } | |
124 | ||
125 | ||
126 | static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw, | |
127 | struct sk_buff *tx_skb) | |
128 | { | |
129 | struct mac80211_hwsim_data *data = hw->priv; | |
130 | struct sk_buff *skb; | |
131 | struct hwsim_radiotap_hdr *hdr; | |
132 | u16 flags; | |
133 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb); | |
134 | struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info); | |
135 | ||
136 | if (!netif_running(hwsim_mon)) | |
137 | return; | |
138 | ||
139 | skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC); | |
140 | if (skb == NULL) | |
141 | return; | |
142 | ||
143 | hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr)); | |
144 | hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION; | |
145 | hdr->hdr.it_pad = 0; | |
146 | hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr)); | |
f248f105 JM |
147 | hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) | |
148 | (1 << IEEE80211_RADIOTAP_RATE) | | |
149 | (1 << IEEE80211_RADIOTAP_CHANNEL)); | |
acc1e7a3 JM |
150 | hdr->rt_flags = 0; |
151 | hdr->rt_rate = txrate->bitrate / 5; | |
df70b4ac | 152 | hdr->rt_channel = cpu_to_le16(data->channel->center_freq); |
acc1e7a3 JM |
153 | flags = IEEE80211_CHAN_2GHZ; |
154 | if (txrate->flags & IEEE80211_RATE_ERP_G) | |
155 | flags |= IEEE80211_CHAN_OFDM; | |
156 | else | |
157 | flags |= IEEE80211_CHAN_CCK; | |
158 | hdr->rt_chbitmask = cpu_to_le16(flags); | |
159 | ||
160 | skb->dev = hwsim_mon; | |
161 | skb_set_mac_header(skb, 0); | |
162 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
163 | skb->pkt_type = PACKET_OTHERHOST; | |
f248f105 | 164 | skb->protocol = htons(ETH_P_802_2); |
acc1e7a3 JM |
165 | memset(skb->cb, 0, sizeof(skb->cb)); |
166 | netif_rx(skb); | |
167 | } | |
168 | ||
169 | ||
e36cfdc9 JM |
170 | static int mac80211_hwsim_tx_frame(struct ieee80211_hw *hw, |
171 | struct sk_buff *skb) | |
acc1e7a3 JM |
172 | { |
173 | struct mac80211_hwsim_data *data = hw->priv; | |
acc1e7a3 | 174 | int i, ack = 0; |
e36cfdc9 | 175 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; |
acc1e7a3 | 176 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
e36cfdc9 | 177 | struct ieee80211_rx_status rx_status; |
acc1e7a3 JM |
178 | |
179 | memset(&rx_status, 0, sizeof(rx_status)); | |
180 | /* TODO: set mactime */ | |
181 | rx_status.freq = data->channel->center_freq; | |
182 | rx_status.band = data->channel->band; | |
183 | rx_status.rate_idx = info->tx_rate_idx; | |
184 | /* TODO: simulate signal strength (and optional packet drop) */ | |
185 | ||
186 | /* Copy skb to all enabled radios that are on the current frequency */ | |
187 | for (i = 0; i < hwsim_radio_count; i++) { | |
188 | struct mac80211_hwsim_data *data2; | |
189 | struct sk_buff *nskb; | |
190 | ||
191 | if (hwsim_radios[i] == NULL || hwsim_radios[i] == hw) | |
192 | continue; | |
193 | data2 = hwsim_radios[i]->priv; | |
194 | if (!data2->started || !data2->radio_enabled || | |
195 | data->channel->center_freq != data2->channel->center_freq) | |
196 | continue; | |
197 | ||
198 | nskb = skb_copy(skb, GFP_ATOMIC); | |
199 | if (nskb == NULL) | |
200 | continue; | |
201 | ||
202 | if (memcmp(hdr->addr1, hwsim_radios[i]->wiphy->perm_addr, | |
203 | ETH_ALEN) == 0) | |
204 | ack = 1; | |
205 | ieee80211_rx_irqsafe(hwsim_radios[i], nskb, &rx_status); | |
206 | } | |
207 | ||
e36cfdc9 JM |
208 | return ack; |
209 | } | |
210 | ||
211 | ||
212 | static int mac80211_hwsim_tx(struct ieee80211_hw *hw, struct sk_buff *skb) | |
213 | { | |
214 | struct mac80211_hwsim_data *data = hw->priv; | |
215 | int ack; | |
216 | struct ieee80211_tx_info *txi; | |
217 | ||
218 | mac80211_hwsim_monitor_rx(hw, skb); | |
219 | ||
220 | if (skb->len < 10) { | |
221 | /* Should not happen; just a sanity check for addr1 use */ | |
222 | dev_kfree_skb(skb); | |
223 | return NETDEV_TX_OK; | |
224 | } | |
225 | ||
226 | if (!data->radio_enabled) { | |
227 | printk(KERN_DEBUG "%s: dropped TX frame since radio " | |
228 | "disabled\n", wiphy_name(hw->wiphy)); | |
229 | dev_kfree_skb(skb); | |
230 | return NETDEV_TX_OK; | |
231 | } | |
232 | ||
233 | ack = mac80211_hwsim_tx_frame(hw, skb); | |
234 | ||
acc1e7a3 | 235 | txi = IEEE80211_SKB_CB(skb); |
8aa21e6f JB |
236 | |
237 | hwsim_check_magic(txi->control.vif); | |
238 | ||
acc1e7a3 JM |
239 | memset(&txi->status, 0, sizeof(txi->status)); |
240 | if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK)) { | |
241 | if (ack) | |
242 | txi->flags |= IEEE80211_TX_STAT_ACK; | |
243 | else | |
244 | txi->status.excessive_retries = 1; | |
245 | } | |
246 | ieee80211_tx_status_irqsafe(hw, skb); | |
247 | return NETDEV_TX_OK; | |
248 | } | |
249 | ||
250 | ||
251 | static int mac80211_hwsim_start(struct ieee80211_hw *hw) | |
252 | { | |
253 | struct mac80211_hwsim_data *data = hw->priv; | |
254 | printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__); | |
255 | data->started = 1; | |
256 | return 0; | |
257 | } | |
258 | ||
259 | ||
260 | static void mac80211_hwsim_stop(struct ieee80211_hw *hw) | |
261 | { | |
262 | struct mac80211_hwsim_data *data = hw->priv; | |
263 | data->started = 0; | |
264 | printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__); | |
265 | } | |
266 | ||
267 | ||
268 | static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw, | |
269 | struct ieee80211_if_init_conf *conf) | |
270 | { | |
271 | DECLARE_MAC_BUF(mac); | |
272 | printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%s)\n", | |
273 | wiphy_name(hw->wiphy), __func__, conf->type, | |
274 | print_mac(mac, conf->mac_addr)); | |
8aa21e6f | 275 | hwsim_set_magic(conf->vif); |
acc1e7a3 JM |
276 | return 0; |
277 | } | |
278 | ||
279 | ||
280 | static void mac80211_hwsim_remove_interface( | |
281 | struct ieee80211_hw *hw, struct ieee80211_if_init_conf *conf) | |
282 | { | |
283 | DECLARE_MAC_BUF(mac); | |
284 | printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%s)\n", | |
285 | wiphy_name(hw->wiphy), __func__, conf->type, | |
286 | print_mac(mac, conf->mac_addr)); | |
8aa21e6f JB |
287 | hwsim_check_magic(conf->vif); |
288 | hwsim_clear_magic(conf->vif); | |
acc1e7a3 JM |
289 | } |
290 | ||
291 | ||
292 | static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac, | |
293 | struct ieee80211_vif *vif) | |
294 | { | |
295 | struct ieee80211_hw *hw = arg; | |
acc1e7a3 | 296 | struct sk_buff *skb; |
acc1e7a3 JM |
297 | struct ieee80211_tx_info *info; |
298 | ||
8aa21e6f JB |
299 | hwsim_check_magic(vif); |
300 | ||
05c914fe | 301 | if (vif->type != NL80211_IFTYPE_AP) |
acc1e7a3 JM |
302 | return; |
303 | ||
304 | skb = ieee80211_beacon_get(hw, vif); | |
305 | if (skb == NULL) | |
306 | return; | |
307 | info = IEEE80211_SKB_CB(skb); | |
308 | ||
309 | mac80211_hwsim_monitor_rx(hw, skb); | |
e36cfdc9 | 310 | mac80211_hwsim_tx_frame(hw, skb); |
acc1e7a3 JM |
311 | dev_kfree_skb(skb); |
312 | } | |
313 | ||
314 | ||
315 | static void mac80211_hwsim_beacon(unsigned long arg) | |
316 | { | |
317 | struct ieee80211_hw *hw = (struct ieee80211_hw *) arg; | |
318 | struct mac80211_hwsim_data *data = hw->priv; | |
319 | ||
320 | if (!data->started || !data->radio_enabled) | |
321 | return; | |
322 | ||
f248f105 JM |
323 | ieee80211_iterate_active_interfaces_atomic( |
324 | hw, mac80211_hwsim_beacon_tx, hw); | |
acc1e7a3 JM |
325 | |
326 | data->beacon_timer.expires = jiffies + data->beacon_int; | |
327 | add_timer(&data->beacon_timer); | |
328 | } | |
329 | ||
330 | ||
331 | static int mac80211_hwsim_config(struct ieee80211_hw *hw, | |
332 | struct ieee80211_conf *conf) | |
333 | { | |
334 | struct mac80211_hwsim_data *data = hw->priv; | |
335 | ||
336 | printk(KERN_DEBUG "%s:%s (freq=%d radio_enabled=%d beacon_int=%d)\n", | |
337 | wiphy_name(hw->wiphy), __func__, | |
338 | conf->channel->center_freq, conf->radio_enabled, | |
339 | conf->beacon_int); | |
340 | ||
341 | data->channel = conf->channel; | |
342 | data->radio_enabled = conf->radio_enabled; | |
343 | data->beacon_int = 1024 * conf->beacon_int / 1000 * HZ / 1000; | |
344 | if (data->beacon_int < 1) | |
345 | data->beacon_int = 1; | |
346 | ||
347 | if (!data->started || !data->radio_enabled) | |
348 | del_timer(&data->beacon_timer); | |
349 | else | |
350 | mod_timer(&data->beacon_timer, jiffies + data->beacon_int); | |
351 | ||
352 | return 0; | |
353 | } | |
354 | ||
355 | ||
356 | static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw, | |
357 | unsigned int changed_flags, | |
358 | unsigned int *total_flags, | |
359 | int mc_count, | |
360 | struct dev_addr_list *mc_list) | |
361 | { | |
362 | struct mac80211_hwsim_data *data = hw->priv; | |
363 | ||
364 | printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__); | |
365 | ||
366 | data->rx_filter = 0; | |
367 | if (*total_flags & FIF_PROMISC_IN_BSS) | |
368 | data->rx_filter |= FIF_PROMISC_IN_BSS; | |
369 | if (*total_flags & FIF_ALLMULTI) | |
370 | data->rx_filter |= FIF_ALLMULTI; | |
371 | ||
372 | *total_flags = data->rx_filter; | |
373 | } | |
374 | ||
8aa21e6f JB |
375 | static int mac80211_hwsim_config_interface(struct ieee80211_hw *hw, |
376 | struct ieee80211_vif *vif, | |
377 | struct ieee80211_if_conf *conf) | |
378 | { | |
379 | hwsim_check_magic(vif); | |
380 | return 0; | |
381 | } | |
acc1e7a3 | 382 | |
8aa21e6f JB |
383 | static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw, |
384 | struct ieee80211_vif *vif, | |
385 | struct ieee80211_bss_conf *info, | |
386 | u32 changed) | |
387 | { | |
388 | hwsim_check_magic(vif); | |
389 | } | |
390 | ||
391 | static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw, | |
392 | struct ieee80211_vif *vif, | |
17741cdc JB |
393 | enum sta_notify_cmd cmd, |
394 | struct ieee80211_sta *sta) | |
8aa21e6f JB |
395 | { |
396 | hwsim_check_magic(vif); | |
397 | } | |
acc1e7a3 JM |
398 | |
399 | static const struct ieee80211_ops mac80211_hwsim_ops = | |
400 | { | |
401 | .tx = mac80211_hwsim_tx, | |
402 | .start = mac80211_hwsim_start, | |
403 | .stop = mac80211_hwsim_stop, | |
404 | .add_interface = mac80211_hwsim_add_interface, | |
405 | .remove_interface = mac80211_hwsim_remove_interface, | |
406 | .config = mac80211_hwsim_config, | |
407 | .configure_filter = mac80211_hwsim_configure_filter, | |
8aa21e6f JB |
408 | .config_interface = mac80211_hwsim_config_interface, |
409 | .bss_info_changed = mac80211_hwsim_bss_info_changed, | |
410 | .sta_notify = mac80211_hwsim_sta_notify, | |
acc1e7a3 JM |
411 | }; |
412 | ||
413 | ||
414 | static void mac80211_hwsim_free(void) | |
415 | { | |
416 | int i; | |
417 | ||
418 | for (i = 0; i < hwsim_radio_count; i++) { | |
419 | if (hwsim_radios[i]) { | |
420 | struct mac80211_hwsim_data *data; | |
421 | data = hwsim_radios[i]->priv; | |
422 | ieee80211_unregister_hw(hwsim_radios[i]); | |
3a33cc10 | 423 | device_unregister(data->dev); |
acc1e7a3 JM |
424 | ieee80211_free_hw(hwsim_radios[i]); |
425 | } | |
426 | } | |
427 | kfree(hwsim_radios); | |
428 | class_destroy(hwsim_class); | |
429 | } | |
430 | ||
431 | ||
432 | static struct device_driver mac80211_hwsim_driver = { | |
433 | .name = "mac80211_hwsim" | |
434 | }; | |
435 | ||
436 | ||
437 | static void hwsim_mon_setup(struct net_device *dev) | |
438 | { | |
439 | dev->hard_start_xmit = hwsim_mon_xmit; | |
440 | dev->destructor = free_netdev; | |
441 | ether_setup(dev); | |
442 | dev->tx_queue_len = 0; | |
443 | dev->type = ARPHRD_IEEE80211_RADIOTAP; | |
444 | memset(dev->dev_addr, 0, ETH_ALEN); | |
445 | dev->dev_addr[0] = 0x12; | |
446 | } | |
447 | ||
448 | ||
449 | static int __init init_mac80211_hwsim(void) | |
450 | { | |
451 | int i, err = 0; | |
452 | u8 addr[ETH_ALEN]; | |
453 | struct mac80211_hwsim_data *data; | |
454 | struct ieee80211_hw *hw; | |
455 | DECLARE_MAC_BUF(mac); | |
456 | ||
457 | if (radios < 1 || radios > 65535) | |
458 | return -EINVAL; | |
459 | ||
460 | hwsim_radio_count = radios; | |
461 | hwsim_radios = kcalloc(hwsim_radio_count, | |
462 | sizeof(struct ieee80211_hw *), GFP_KERNEL); | |
463 | if (hwsim_radios == NULL) | |
464 | return -ENOMEM; | |
465 | ||
466 | hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim"); | |
467 | if (IS_ERR(hwsim_class)) { | |
468 | kfree(hwsim_radios); | |
469 | return PTR_ERR(hwsim_class); | |
470 | } | |
471 | ||
472 | memset(addr, 0, ETH_ALEN); | |
473 | addr[0] = 0x02; | |
474 | ||
475 | for (i = 0; i < hwsim_radio_count; i++) { | |
476 | printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n", | |
477 | i); | |
478 | hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops); | |
479 | if (hw == NULL) { | |
480 | printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw " | |
481 | "failed\n"); | |
482 | err = -ENOMEM; | |
483 | goto failed; | |
484 | } | |
485 | hwsim_radios[i] = hw; | |
486 | ||
487 | data = hw->priv; | |
e800f17c SR |
488 | data->dev = device_create_drvdata(hwsim_class, NULL, 0, hw, |
489 | "hwsim%d", i); | |
acc1e7a3 | 490 | if (IS_ERR(data->dev)) { |
e800f17c SR |
491 | printk(KERN_DEBUG |
492 | "mac80211_hwsim: device_create_drvdata " | |
acc1e7a3 JM |
493 | "failed (%ld)\n", PTR_ERR(data->dev)); |
494 | err = -ENOMEM; | |
3a33cc10 | 495 | goto failed_drvdata; |
acc1e7a3 JM |
496 | } |
497 | data->dev->driver = &mac80211_hwsim_driver; | |
acc1e7a3 JM |
498 | |
499 | SET_IEEE80211_DEV(hw, data->dev); | |
500 | addr[3] = i >> 8; | |
501 | addr[4] = i; | |
502 | SET_IEEE80211_PERM_ADDR(hw, addr); | |
503 | ||
504 | hw->channel_change_time = 1; | |
87e8b64e | 505 | hw->queues = 4; |
f59ac048 LR |
506 | hw->wiphy->interface_modes = |
507 | BIT(NL80211_IFTYPE_STATION) | | |
508 | BIT(NL80211_IFTYPE_AP); | |
87e8b64e | 509 | hw->ampdu_queues = 1; |
acc1e7a3 | 510 | |
8aa21e6f JB |
511 | /* ask mac80211 to reserve space for magic */ |
512 | hw->vif_data_size = sizeof(struct hwsim_vif_priv); | |
513 | ||
acc1e7a3 JM |
514 | memcpy(data->channels, hwsim_channels, sizeof(hwsim_channels)); |
515 | memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates)); | |
516 | data->band.channels = data->channels; | |
517 | data->band.n_channels = ARRAY_SIZE(hwsim_channels); | |
518 | data->band.bitrates = data->rates; | |
519 | data->band.n_bitrates = ARRAY_SIZE(hwsim_rates); | |
87e8b64e JM |
520 | data->band.ht_info.ht_supported = 1; |
521 | data->band.ht_info.cap = IEEE80211_HT_CAP_SUP_WIDTH | | |
522 | IEEE80211_HT_CAP_GRN_FLD | | |
523 | IEEE80211_HT_CAP_SGI_40 | | |
524 | IEEE80211_HT_CAP_DSSSCCK40; | |
525 | data->band.ht_info.ampdu_factor = 0x3; | |
526 | data->band.ht_info.ampdu_density = 0x6; | |
527 | memset(data->band.ht_info.supp_mcs_set, 0, | |
528 | sizeof(data->band.ht_info.supp_mcs_set)); | |
529 | data->band.ht_info.supp_mcs_set[0] = 0xff; | |
530 | data->band.ht_info.supp_mcs_set[1] = 0xff; | |
531 | data->band.ht_info.supp_mcs_set[12] = | |
532 | IEEE80211_HT_CAP_MCS_TX_DEFINED; | |
acc1e7a3 JM |
533 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &data->band; |
534 | ||
535 | err = ieee80211_register_hw(hw); | |
536 | if (err < 0) { | |
537 | printk(KERN_DEBUG "mac80211_hwsim: " | |
538 | "ieee80211_register_hw failed (%d)\n", err); | |
3a33cc10 | 539 | goto failed_hw; |
acc1e7a3 JM |
540 | } |
541 | ||
542 | printk(KERN_DEBUG "%s: hwaddr %s registered\n", | |
543 | wiphy_name(hw->wiphy), | |
544 | print_mac(mac, hw->wiphy->perm_addr)); | |
545 | ||
546 | setup_timer(&data->beacon_timer, mac80211_hwsim_beacon, | |
547 | (unsigned long) hw); | |
548 | } | |
549 | ||
550 | hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup); | |
551 | if (hwsim_mon == NULL) | |
552 | goto failed; | |
553 | ||
554 | rtnl_lock(); | |
555 | ||
556 | err = dev_alloc_name(hwsim_mon, hwsim_mon->name); | |
3a33cc10 | 557 | if (err < 0) |
acc1e7a3 | 558 | goto failed_mon; |
3a33cc10 | 559 | |
acc1e7a3 JM |
560 | |
561 | err = register_netdevice(hwsim_mon); | |
562 | if (err < 0) | |
563 | goto failed_mon; | |
564 | ||
565 | rtnl_unlock(); | |
566 | ||
567 | return 0; | |
568 | ||
569 | failed_mon: | |
570 | rtnl_unlock(); | |
571 | free_netdev(hwsim_mon); | |
3a33cc10 IS |
572 | mac80211_hwsim_free(); |
573 | return err; | |
acc1e7a3 | 574 | |
3a33cc10 IS |
575 | failed_hw: |
576 | device_unregister(data->dev); | |
577 | failed_drvdata: | |
578 | ieee80211_free_hw(hw); | |
0b06b2ae | 579 | hwsim_radios[i] = NULL; |
acc1e7a3 JM |
580 | failed: |
581 | mac80211_hwsim_free(); | |
582 | return err; | |
583 | } | |
584 | ||
585 | ||
586 | static void __exit exit_mac80211_hwsim(void) | |
587 | { | |
588 | printk(KERN_DEBUG "mac80211_hwsim: unregister %d radios\n", | |
589 | hwsim_radio_count); | |
590 | ||
591 | unregister_netdev(hwsim_mon); | |
592 | mac80211_hwsim_free(); | |
593 | } | |
594 | ||
595 | ||
596 | module_init(init_mac80211_hwsim); | |
597 | module_exit(exit_mac80211_hwsim); |