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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 | 54 | |
81c06523 JB |
55 | struct hwsim_sta_priv { |
56 | u32 magic; | |
57 | }; | |
58 | ||
59 | #define HWSIM_STA_MAGIC 0x6d537748 | |
60 | ||
61 | static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta) | |
62 | { | |
63 | struct hwsim_sta_priv *sp = (void *)sta->drv_priv; | |
64 | WARN_ON(sp->magic != HWSIM_VIF_MAGIC); | |
65 | } | |
66 | ||
67 | static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta) | |
68 | { | |
69 | struct hwsim_sta_priv *sp = (void *)sta->drv_priv; | |
70 | sp->magic = HWSIM_VIF_MAGIC; | |
71 | } | |
72 | ||
73 | static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta) | |
74 | { | |
75 | struct hwsim_sta_priv *sp = (void *)sta->drv_priv; | |
76 | sp->magic = 0; | |
77 | } | |
78 | ||
acc1e7a3 JM |
79 | static struct class *hwsim_class; |
80 | ||
81 | static struct ieee80211_hw **hwsim_radios; | |
82 | static int hwsim_radio_count; | |
83 | static struct net_device *hwsim_mon; /* global monitor netdev */ | |
84 | ||
85 | ||
86 | static const struct ieee80211_channel hwsim_channels[] = { | |
87 | { .center_freq = 2412 }, | |
88 | { .center_freq = 2417 }, | |
89 | { .center_freq = 2422 }, | |
90 | { .center_freq = 2427 }, | |
91 | { .center_freq = 2432 }, | |
92 | { .center_freq = 2437 }, | |
93 | { .center_freq = 2442 }, | |
94 | { .center_freq = 2447 }, | |
95 | { .center_freq = 2452 }, | |
96 | { .center_freq = 2457 }, | |
97 | { .center_freq = 2462 }, | |
98 | { .center_freq = 2467 }, | |
99 | { .center_freq = 2472 }, | |
100 | { .center_freq = 2484 }, | |
101 | }; | |
102 | ||
103 | static const struct ieee80211_rate hwsim_rates[] = { | |
104 | { .bitrate = 10 }, | |
105 | { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
106 | { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
107 | { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
108 | { .bitrate = 60 }, | |
109 | { .bitrate = 90 }, | |
110 | { .bitrate = 120 }, | |
111 | { .bitrate = 180 }, | |
112 | { .bitrate = 240 }, | |
113 | { .bitrate = 360 }, | |
114 | { .bitrate = 480 }, | |
115 | { .bitrate = 540 } | |
116 | }; | |
117 | ||
118 | struct mac80211_hwsim_data { | |
119 | struct device *dev; | |
120 | struct ieee80211_supported_band band; | |
121 | struct ieee80211_channel channels[ARRAY_SIZE(hwsim_channels)]; | |
122 | struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)]; | |
123 | ||
124 | struct ieee80211_channel *channel; | |
125 | int radio_enabled; | |
126 | unsigned long beacon_int; /* in jiffies unit */ | |
127 | unsigned int rx_filter; | |
128 | int started; | |
129 | struct timer_list beacon_timer; | |
130 | }; | |
131 | ||
132 | ||
133 | struct hwsim_radiotap_hdr { | |
134 | struct ieee80211_radiotap_header hdr; | |
135 | u8 rt_flags; | |
136 | u8 rt_rate; | |
137 | __le16 rt_channel; | |
138 | __le16 rt_chbitmask; | |
139 | } __attribute__ ((packed)); | |
140 | ||
141 | ||
142 | static int hwsim_mon_xmit(struct sk_buff *skb, struct net_device *dev) | |
143 | { | |
144 | /* TODO: allow packet injection */ | |
145 | dev_kfree_skb(skb); | |
146 | return 0; | |
147 | } | |
148 | ||
149 | ||
150 | static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw, | |
151 | struct sk_buff *tx_skb) | |
152 | { | |
153 | struct mac80211_hwsim_data *data = hw->priv; | |
154 | struct sk_buff *skb; | |
155 | struct hwsim_radiotap_hdr *hdr; | |
156 | u16 flags; | |
157 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb); | |
158 | struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info); | |
159 | ||
160 | if (!netif_running(hwsim_mon)) | |
161 | return; | |
162 | ||
163 | skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC); | |
164 | if (skb == NULL) | |
165 | return; | |
166 | ||
167 | hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr)); | |
168 | hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION; | |
169 | hdr->hdr.it_pad = 0; | |
170 | hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr)); | |
f248f105 JM |
171 | hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) | |
172 | (1 << IEEE80211_RADIOTAP_RATE) | | |
173 | (1 << IEEE80211_RADIOTAP_CHANNEL)); | |
acc1e7a3 JM |
174 | hdr->rt_flags = 0; |
175 | hdr->rt_rate = txrate->bitrate / 5; | |
df70b4ac | 176 | hdr->rt_channel = cpu_to_le16(data->channel->center_freq); |
acc1e7a3 JM |
177 | flags = IEEE80211_CHAN_2GHZ; |
178 | if (txrate->flags & IEEE80211_RATE_ERP_G) | |
179 | flags |= IEEE80211_CHAN_OFDM; | |
180 | else | |
181 | flags |= IEEE80211_CHAN_CCK; | |
182 | hdr->rt_chbitmask = cpu_to_le16(flags); | |
183 | ||
184 | skb->dev = hwsim_mon; | |
185 | skb_set_mac_header(skb, 0); | |
186 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
187 | skb->pkt_type = PACKET_OTHERHOST; | |
f248f105 | 188 | skb->protocol = htons(ETH_P_802_2); |
acc1e7a3 JM |
189 | memset(skb->cb, 0, sizeof(skb->cb)); |
190 | netif_rx(skb); | |
191 | } | |
192 | ||
193 | ||
e36cfdc9 JM |
194 | static int mac80211_hwsim_tx_frame(struct ieee80211_hw *hw, |
195 | struct sk_buff *skb) | |
acc1e7a3 JM |
196 | { |
197 | struct mac80211_hwsim_data *data = hw->priv; | |
acc1e7a3 | 198 | int i, ack = 0; |
e36cfdc9 | 199 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; |
acc1e7a3 | 200 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
e36cfdc9 | 201 | struct ieee80211_rx_status rx_status; |
acc1e7a3 JM |
202 | |
203 | memset(&rx_status, 0, sizeof(rx_status)); | |
204 | /* TODO: set mactime */ | |
205 | rx_status.freq = data->channel->center_freq; | |
206 | rx_status.band = data->channel->band; | |
207 | rx_status.rate_idx = info->tx_rate_idx; | |
208 | /* TODO: simulate signal strength (and optional packet drop) */ | |
209 | ||
210 | /* Copy skb to all enabled radios that are on the current frequency */ | |
211 | for (i = 0; i < hwsim_radio_count; i++) { | |
212 | struct mac80211_hwsim_data *data2; | |
213 | struct sk_buff *nskb; | |
214 | ||
215 | if (hwsim_radios[i] == NULL || hwsim_radios[i] == hw) | |
216 | continue; | |
217 | data2 = hwsim_radios[i]->priv; | |
218 | if (!data2->started || !data2->radio_enabled || | |
219 | data->channel->center_freq != data2->channel->center_freq) | |
220 | continue; | |
221 | ||
222 | nskb = skb_copy(skb, GFP_ATOMIC); | |
223 | if (nskb == NULL) | |
224 | continue; | |
225 | ||
226 | if (memcmp(hdr->addr1, hwsim_radios[i]->wiphy->perm_addr, | |
227 | ETH_ALEN) == 0) | |
228 | ack = 1; | |
229 | ieee80211_rx_irqsafe(hwsim_radios[i], nskb, &rx_status); | |
230 | } | |
231 | ||
e36cfdc9 JM |
232 | return ack; |
233 | } | |
234 | ||
235 | ||
236 | static int mac80211_hwsim_tx(struct ieee80211_hw *hw, struct sk_buff *skb) | |
237 | { | |
238 | struct mac80211_hwsim_data *data = hw->priv; | |
239 | int ack; | |
240 | struct ieee80211_tx_info *txi; | |
241 | ||
242 | mac80211_hwsim_monitor_rx(hw, skb); | |
243 | ||
244 | if (skb->len < 10) { | |
245 | /* Should not happen; just a sanity check for addr1 use */ | |
246 | dev_kfree_skb(skb); | |
247 | return NETDEV_TX_OK; | |
248 | } | |
249 | ||
250 | if (!data->radio_enabled) { | |
251 | printk(KERN_DEBUG "%s: dropped TX frame since radio " | |
252 | "disabled\n", wiphy_name(hw->wiphy)); | |
253 | dev_kfree_skb(skb); | |
254 | return NETDEV_TX_OK; | |
255 | } | |
256 | ||
257 | ack = mac80211_hwsim_tx_frame(hw, skb); | |
258 | ||
acc1e7a3 | 259 | txi = IEEE80211_SKB_CB(skb); |
8aa21e6f JB |
260 | |
261 | hwsim_check_magic(txi->control.vif); | |
81c06523 JB |
262 | if (txi->control.sta) |
263 | hwsim_check_sta_magic(txi->control.sta); | |
8aa21e6f | 264 | |
acc1e7a3 JM |
265 | memset(&txi->status, 0, sizeof(txi->status)); |
266 | if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK)) { | |
267 | if (ack) | |
268 | txi->flags |= IEEE80211_TX_STAT_ACK; | |
269 | else | |
270 | txi->status.excessive_retries = 1; | |
271 | } | |
272 | ieee80211_tx_status_irqsafe(hw, skb); | |
273 | return NETDEV_TX_OK; | |
274 | } | |
275 | ||
276 | ||
277 | static int mac80211_hwsim_start(struct ieee80211_hw *hw) | |
278 | { | |
279 | struct mac80211_hwsim_data *data = hw->priv; | |
280 | printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__); | |
281 | data->started = 1; | |
282 | return 0; | |
283 | } | |
284 | ||
285 | ||
286 | static void mac80211_hwsim_stop(struct ieee80211_hw *hw) | |
287 | { | |
288 | struct mac80211_hwsim_data *data = hw->priv; | |
289 | data->started = 0; | |
290 | printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__); | |
291 | } | |
292 | ||
293 | ||
294 | static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw, | |
295 | struct ieee80211_if_init_conf *conf) | |
296 | { | |
297 | DECLARE_MAC_BUF(mac); | |
298 | printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%s)\n", | |
299 | wiphy_name(hw->wiphy), __func__, conf->type, | |
300 | print_mac(mac, conf->mac_addr)); | |
8aa21e6f | 301 | hwsim_set_magic(conf->vif); |
acc1e7a3 JM |
302 | return 0; |
303 | } | |
304 | ||
305 | ||
306 | static void mac80211_hwsim_remove_interface( | |
307 | struct ieee80211_hw *hw, struct ieee80211_if_init_conf *conf) | |
308 | { | |
309 | DECLARE_MAC_BUF(mac); | |
310 | printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%s)\n", | |
311 | wiphy_name(hw->wiphy), __func__, conf->type, | |
312 | print_mac(mac, conf->mac_addr)); | |
8aa21e6f JB |
313 | hwsim_check_magic(conf->vif); |
314 | hwsim_clear_magic(conf->vif); | |
acc1e7a3 JM |
315 | } |
316 | ||
317 | ||
318 | static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac, | |
319 | struct ieee80211_vif *vif) | |
320 | { | |
321 | struct ieee80211_hw *hw = arg; | |
acc1e7a3 | 322 | struct sk_buff *skb; |
acc1e7a3 JM |
323 | struct ieee80211_tx_info *info; |
324 | ||
8aa21e6f JB |
325 | hwsim_check_magic(vif); |
326 | ||
05c914fe | 327 | if (vif->type != NL80211_IFTYPE_AP) |
acc1e7a3 JM |
328 | return; |
329 | ||
330 | skb = ieee80211_beacon_get(hw, vif); | |
331 | if (skb == NULL) | |
332 | return; | |
333 | info = IEEE80211_SKB_CB(skb); | |
334 | ||
335 | mac80211_hwsim_monitor_rx(hw, skb); | |
e36cfdc9 | 336 | mac80211_hwsim_tx_frame(hw, skb); |
acc1e7a3 JM |
337 | dev_kfree_skb(skb); |
338 | } | |
339 | ||
340 | ||
341 | static void mac80211_hwsim_beacon(unsigned long arg) | |
342 | { | |
343 | struct ieee80211_hw *hw = (struct ieee80211_hw *) arg; | |
344 | struct mac80211_hwsim_data *data = hw->priv; | |
345 | ||
346 | if (!data->started || !data->radio_enabled) | |
347 | return; | |
348 | ||
f248f105 JM |
349 | ieee80211_iterate_active_interfaces_atomic( |
350 | hw, mac80211_hwsim_beacon_tx, hw); | |
acc1e7a3 JM |
351 | |
352 | data->beacon_timer.expires = jiffies + data->beacon_int; | |
353 | add_timer(&data->beacon_timer); | |
354 | } | |
355 | ||
356 | ||
357 | static int mac80211_hwsim_config(struct ieee80211_hw *hw, | |
358 | struct ieee80211_conf *conf) | |
359 | { | |
360 | struct mac80211_hwsim_data *data = hw->priv; | |
361 | ||
362 | printk(KERN_DEBUG "%s:%s (freq=%d radio_enabled=%d beacon_int=%d)\n", | |
363 | wiphy_name(hw->wiphy), __func__, | |
364 | conf->channel->center_freq, conf->radio_enabled, | |
365 | conf->beacon_int); | |
366 | ||
367 | data->channel = conf->channel; | |
368 | data->radio_enabled = conf->radio_enabled; | |
369 | data->beacon_int = 1024 * conf->beacon_int / 1000 * HZ / 1000; | |
370 | if (data->beacon_int < 1) | |
371 | data->beacon_int = 1; | |
372 | ||
373 | if (!data->started || !data->radio_enabled) | |
374 | del_timer(&data->beacon_timer); | |
375 | else | |
376 | mod_timer(&data->beacon_timer, jiffies + data->beacon_int); | |
377 | ||
378 | return 0; | |
379 | } | |
380 | ||
381 | ||
382 | static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw, | |
383 | unsigned int changed_flags, | |
384 | unsigned int *total_flags, | |
385 | int mc_count, | |
386 | struct dev_addr_list *mc_list) | |
387 | { | |
388 | struct mac80211_hwsim_data *data = hw->priv; | |
389 | ||
390 | printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__); | |
391 | ||
392 | data->rx_filter = 0; | |
393 | if (*total_flags & FIF_PROMISC_IN_BSS) | |
394 | data->rx_filter |= FIF_PROMISC_IN_BSS; | |
395 | if (*total_flags & FIF_ALLMULTI) | |
396 | data->rx_filter |= FIF_ALLMULTI; | |
397 | ||
398 | *total_flags = data->rx_filter; | |
399 | } | |
400 | ||
8aa21e6f JB |
401 | static int mac80211_hwsim_config_interface(struct ieee80211_hw *hw, |
402 | struct ieee80211_vif *vif, | |
403 | struct ieee80211_if_conf *conf) | |
404 | { | |
405 | hwsim_check_magic(vif); | |
406 | return 0; | |
407 | } | |
acc1e7a3 | 408 | |
8aa21e6f JB |
409 | static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw, |
410 | struct ieee80211_vif *vif, | |
411 | struct ieee80211_bss_conf *info, | |
412 | u32 changed) | |
413 | { | |
414 | hwsim_check_magic(vif); | |
415 | } | |
416 | ||
417 | static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw, | |
418 | struct ieee80211_vif *vif, | |
17741cdc JB |
419 | enum sta_notify_cmd cmd, |
420 | struct ieee80211_sta *sta) | |
8aa21e6f JB |
421 | { |
422 | hwsim_check_magic(vif); | |
81c06523 JB |
423 | switch (cmd) { |
424 | case STA_NOTIFY_ADD: | |
425 | hwsim_set_sta_magic(sta); | |
426 | break; | |
427 | case STA_NOTIFY_REMOVE: | |
428 | hwsim_clear_sta_magic(sta); | |
429 | break; | |
430 | } | |
431 | } | |
432 | ||
433 | static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw, | |
434 | struct ieee80211_sta *sta, | |
435 | bool set) | |
436 | { | |
437 | hwsim_check_sta_magic(sta); | |
438 | return 0; | |
8aa21e6f | 439 | } |
acc1e7a3 JM |
440 | |
441 | static const struct ieee80211_ops mac80211_hwsim_ops = | |
442 | { | |
443 | .tx = mac80211_hwsim_tx, | |
444 | .start = mac80211_hwsim_start, | |
445 | .stop = mac80211_hwsim_stop, | |
446 | .add_interface = mac80211_hwsim_add_interface, | |
447 | .remove_interface = mac80211_hwsim_remove_interface, | |
448 | .config = mac80211_hwsim_config, | |
449 | .configure_filter = mac80211_hwsim_configure_filter, | |
8aa21e6f JB |
450 | .config_interface = mac80211_hwsim_config_interface, |
451 | .bss_info_changed = mac80211_hwsim_bss_info_changed, | |
452 | .sta_notify = mac80211_hwsim_sta_notify, | |
81c06523 | 453 | .set_tim = mac80211_hwsim_set_tim, |
acc1e7a3 JM |
454 | }; |
455 | ||
456 | ||
457 | static void mac80211_hwsim_free(void) | |
458 | { | |
459 | int i; | |
460 | ||
461 | for (i = 0; i < hwsim_radio_count; i++) { | |
462 | if (hwsim_radios[i]) { | |
463 | struct mac80211_hwsim_data *data; | |
464 | data = hwsim_radios[i]->priv; | |
465 | ieee80211_unregister_hw(hwsim_radios[i]); | |
3a33cc10 | 466 | device_unregister(data->dev); |
acc1e7a3 JM |
467 | ieee80211_free_hw(hwsim_radios[i]); |
468 | } | |
469 | } | |
470 | kfree(hwsim_radios); | |
471 | class_destroy(hwsim_class); | |
472 | } | |
473 | ||
474 | ||
475 | static struct device_driver mac80211_hwsim_driver = { | |
476 | .name = "mac80211_hwsim" | |
477 | }; | |
478 | ||
479 | ||
480 | static void hwsim_mon_setup(struct net_device *dev) | |
481 | { | |
482 | dev->hard_start_xmit = hwsim_mon_xmit; | |
483 | dev->destructor = free_netdev; | |
484 | ether_setup(dev); | |
485 | dev->tx_queue_len = 0; | |
486 | dev->type = ARPHRD_IEEE80211_RADIOTAP; | |
487 | memset(dev->dev_addr, 0, ETH_ALEN); | |
488 | dev->dev_addr[0] = 0x12; | |
489 | } | |
490 | ||
491 | ||
492 | static int __init init_mac80211_hwsim(void) | |
493 | { | |
494 | int i, err = 0; | |
495 | u8 addr[ETH_ALEN]; | |
496 | struct mac80211_hwsim_data *data; | |
497 | struct ieee80211_hw *hw; | |
498 | DECLARE_MAC_BUF(mac); | |
499 | ||
500 | if (radios < 1 || radios > 65535) | |
501 | return -EINVAL; | |
502 | ||
503 | hwsim_radio_count = radios; | |
504 | hwsim_radios = kcalloc(hwsim_radio_count, | |
505 | sizeof(struct ieee80211_hw *), GFP_KERNEL); | |
506 | if (hwsim_radios == NULL) | |
507 | return -ENOMEM; | |
508 | ||
509 | hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim"); | |
510 | if (IS_ERR(hwsim_class)) { | |
511 | kfree(hwsim_radios); | |
512 | return PTR_ERR(hwsim_class); | |
513 | } | |
514 | ||
515 | memset(addr, 0, ETH_ALEN); | |
516 | addr[0] = 0x02; | |
517 | ||
518 | for (i = 0; i < hwsim_radio_count; i++) { | |
519 | printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n", | |
520 | i); | |
521 | hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops); | |
522 | if (hw == NULL) { | |
523 | printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw " | |
524 | "failed\n"); | |
525 | err = -ENOMEM; | |
526 | goto failed; | |
527 | } | |
528 | hwsim_radios[i] = hw; | |
529 | ||
530 | data = hw->priv; | |
e800f17c SR |
531 | data->dev = device_create_drvdata(hwsim_class, NULL, 0, hw, |
532 | "hwsim%d", i); | |
acc1e7a3 | 533 | if (IS_ERR(data->dev)) { |
e800f17c SR |
534 | printk(KERN_DEBUG |
535 | "mac80211_hwsim: device_create_drvdata " | |
acc1e7a3 JM |
536 | "failed (%ld)\n", PTR_ERR(data->dev)); |
537 | err = -ENOMEM; | |
3a33cc10 | 538 | goto failed_drvdata; |
acc1e7a3 JM |
539 | } |
540 | data->dev->driver = &mac80211_hwsim_driver; | |
acc1e7a3 JM |
541 | |
542 | SET_IEEE80211_DEV(hw, data->dev); | |
543 | addr[3] = i >> 8; | |
544 | addr[4] = i; | |
545 | SET_IEEE80211_PERM_ADDR(hw, addr); | |
546 | ||
547 | hw->channel_change_time = 1; | |
87e8b64e | 548 | hw->queues = 4; |
f59ac048 LR |
549 | hw->wiphy->interface_modes = |
550 | BIT(NL80211_IFTYPE_STATION) | | |
551 | BIT(NL80211_IFTYPE_AP); | |
87e8b64e | 552 | hw->ampdu_queues = 1; |
acc1e7a3 | 553 | |
8aa21e6f JB |
554 | /* ask mac80211 to reserve space for magic */ |
555 | hw->vif_data_size = sizeof(struct hwsim_vif_priv); | |
81c06523 | 556 | hw->sta_data_size = sizeof(struct hwsim_sta_priv); |
8aa21e6f | 557 | |
acc1e7a3 JM |
558 | memcpy(data->channels, hwsim_channels, sizeof(hwsim_channels)); |
559 | memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates)); | |
560 | data->band.channels = data->channels; | |
561 | data->band.n_channels = ARRAY_SIZE(hwsim_channels); | |
562 | data->band.bitrates = data->rates; | |
563 | data->band.n_bitrates = ARRAY_SIZE(hwsim_rates); | |
87e8b64e JM |
564 | data->band.ht_info.ht_supported = 1; |
565 | data->band.ht_info.cap = IEEE80211_HT_CAP_SUP_WIDTH | | |
566 | IEEE80211_HT_CAP_GRN_FLD | | |
567 | IEEE80211_HT_CAP_SGI_40 | | |
568 | IEEE80211_HT_CAP_DSSSCCK40; | |
569 | data->band.ht_info.ampdu_factor = 0x3; | |
570 | data->band.ht_info.ampdu_density = 0x6; | |
571 | memset(data->band.ht_info.supp_mcs_set, 0, | |
572 | sizeof(data->band.ht_info.supp_mcs_set)); | |
573 | data->band.ht_info.supp_mcs_set[0] = 0xff; | |
574 | data->band.ht_info.supp_mcs_set[1] = 0xff; | |
575 | data->band.ht_info.supp_mcs_set[12] = | |
576 | IEEE80211_HT_CAP_MCS_TX_DEFINED; | |
acc1e7a3 JM |
577 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &data->band; |
578 | ||
579 | err = ieee80211_register_hw(hw); | |
580 | if (err < 0) { | |
581 | printk(KERN_DEBUG "mac80211_hwsim: " | |
582 | "ieee80211_register_hw failed (%d)\n", err); | |
3a33cc10 | 583 | goto failed_hw; |
acc1e7a3 JM |
584 | } |
585 | ||
586 | printk(KERN_DEBUG "%s: hwaddr %s registered\n", | |
587 | wiphy_name(hw->wiphy), | |
588 | print_mac(mac, hw->wiphy->perm_addr)); | |
589 | ||
590 | setup_timer(&data->beacon_timer, mac80211_hwsim_beacon, | |
591 | (unsigned long) hw); | |
592 | } | |
593 | ||
594 | hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup); | |
595 | if (hwsim_mon == NULL) | |
596 | goto failed; | |
597 | ||
598 | rtnl_lock(); | |
599 | ||
600 | err = dev_alloc_name(hwsim_mon, hwsim_mon->name); | |
3a33cc10 | 601 | if (err < 0) |
acc1e7a3 | 602 | goto failed_mon; |
3a33cc10 | 603 | |
acc1e7a3 JM |
604 | |
605 | err = register_netdevice(hwsim_mon); | |
606 | if (err < 0) | |
607 | goto failed_mon; | |
608 | ||
609 | rtnl_unlock(); | |
610 | ||
611 | return 0; | |
612 | ||
613 | failed_mon: | |
614 | rtnl_unlock(); | |
615 | free_netdev(hwsim_mon); | |
3a33cc10 IS |
616 | mac80211_hwsim_free(); |
617 | return err; | |
acc1e7a3 | 618 | |
3a33cc10 IS |
619 | failed_hw: |
620 | device_unregister(data->dev); | |
621 | failed_drvdata: | |
622 | ieee80211_free_hw(hw); | |
0b06b2ae | 623 | hwsim_radios[i] = NULL; |
acc1e7a3 JM |
624 | failed: |
625 | mac80211_hwsim_free(); | |
626 | return err; | |
627 | } | |
628 | ||
629 | ||
630 | static void __exit exit_mac80211_hwsim(void) | |
631 | { | |
632 | printk(KERN_DEBUG "mac80211_hwsim: unregister %d radios\n", | |
633 | hwsim_radio_count); | |
634 | ||
635 | unregister_netdev(hwsim_mon); | |
636 | mac80211_hwsim_free(); | |
637 | } | |
638 | ||
639 | ||
640 | module_init(init_mac80211_hwsim); | |
641 | module_exit(exit_mac80211_hwsim); |