blob: 631d65b73edfb90732a6cc560ea8b64c9b805662 [file] [log] [blame]
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03001/*
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
23MODULE_AUTHOR("Jouni Malinen");
24MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
25MODULE_LICENSE("GPL");
26
27static int radios = 2;
28module_param(radios, int, 0444);
29MODULE_PARM_DESC(radios, "Number of simulated radios");
30
Johannes Berg8aa21e62008-09-11 02:16:36 +020031struct hwsim_vif_priv {
32 u32 magic;
33};
34
35#define HWSIM_VIF_MAGIC 0x69537748
36
37static 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
43static 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
49static 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}
Jouni Malinenacc1e7a2008-06-11 10:42:31 +030054
Johannes Berg81c06522008-09-11 02:17:01 +020055struct hwsim_sta_priv {
56 u32 magic;
57};
58
59#define HWSIM_STA_MAGIC 0x6d537748
60
61static 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
67static 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
73static 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
Jouni Malinenacc1e7a2008-06-11 10:42:31 +030079static struct class *hwsim_class;
80
81static struct ieee80211_hw **hwsim_radios;
82static int hwsim_radio_count;
83static struct net_device *hwsim_mon; /* global monitor netdev */
84
85
86static 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
103static 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
118struct 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
133struct 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
142static 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
150static 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));
Jouni Malinenf248f102008-06-13 19:44:47 +0300171 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
172 (1 << IEEE80211_RADIOTAP_RATE) |
173 (1 << IEEE80211_RADIOTAP_CHANNEL));
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300174 hdr->rt_flags = 0;
175 hdr->rt_rate = txrate->bitrate / 5;
Johannes Bergdf70b4a2008-07-10 11:56:33 +0200176 hdr->rt_channel = cpu_to_le16(data->channel->center_freq);
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300177 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;
Jouni Malinenf248f102008-06-13 19:44:47 +0300188 skb->protocol = htons(ETH_P_802_2);
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300189 memset(skb->cb, 0, sizeof(skb->cb));
190 netif_rx(skb);
191}
192
193
Jouni Malinene36cfdc2008-06-13 19:44:48 +0300194static int mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
195 struct sk_buff *skb)
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300196{
197 struct mac80211_hwsim_data *data = hw->priv;
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300198 int i, ack = 0;
Jouni Malinene36cfdc2008-06-13 19:44:48 +0300199 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300200 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
Jouni Malinene36cfdc2008-06-13 19:44:48 +0300201 struct ieee80211_rx_status rx_status;
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300202
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
Jouni Malinene36cfdc2008-06-13 19:44:48 +0300232 return ack;
233}
234
235
236static 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
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300259 txi = IEEE80211_SKB_CB(skb);
Johannes Berg8aa21e62008-09-11 02:16:36 +0200260
Johannes Berg25d834e2008-09-12 22:52:47 +0200261 if (txi->control.vif)
262 hwsim_check_magic(txi->control.vif);
Johannes Berg81c06522008-09-11 02:17:01 +0200263 if (txi->control.sta)
264 hwsim_check_sta_magic(txi->control.sta);
Johannes Berg8aa21e62008-09-11 02:16:36 +0200265
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300266 memset(&txi->status, 0, sizeof(txi->status));
267 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK)) {
268 if (ack)
269 txi->flags |= IEEE80211_TX_STAT_ACK;
270 else
271 txi->status.excessive_retries = 1;
272 }
273 ieee80211_tx_status_irqsafe(hw, skb);
274 return NETDEV_TX_OK;
275}
276
277
278static int mac80211_hwsim_start(struct ieee80211_hw *hw)
279{
280 struct mac80211_hwsim_data *data = hw->priv;
281 printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
282 data->started = 1;
283 return 0;
284}
285
286
287static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
288{
289 struct mac80211_hwsim_data *data = hw->priv;
290 data->started = 0;
291 printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
292}
293
294
295static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
296 struct ieee80211_if_init_conf *conf)
297{
298 DECLARE_MAC_BUF(mac);
299 printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%s)\n",
300 wiphy_name(hw->wiphy), __func__, conf->type,
301 print_mac(mac, conf->mac_addr));
Johannes Berg8aa21e62008-09-11 02:16:36 +0200302 hwsim_set_magic(conf->vif);
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300303 return 0;
304}
305
306
307static void mac80211_hwsim_remove_interface(
308 struct ieee80211_hw *hw, struct ieee80211_if_init_conf *conf)
309{
310 DECLARE_MAC_BUF(mac);
311 printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%s)\n",
312 wiphy_name(hw->wiphy), __func__, conf->type,
313 print_mac(mac, conf->mac_addr));
Johannes Berg8aa21e62008-09-11 02:16:36 +0200314 hwsim_check_magic(conf->vif);
315 hwsim_clear_magic(conf->vif);
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300316}
317
318
319static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
320 struct ieee80211_vif *vif)
321{
322 struct ieee80211_hw *hw = arg;
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300323 struct sk_buff *skb;
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300324 struct ieee80211_tx_info *info;
325
Johannes Berg8aa21e62008-09-11 02:16:36 +0200326 hwsim_check_magic(vif);
327
Johannes Berg05c914f2008-09-11 00:01:58 +0200328 if (vif->type != NL80211_IFTYPE_AP)
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300329 return;
330
331 skb = ieee80211_beacon_get(hw, vif);
332 if (skb == NULL)
333 return;
334 info = IEEE80211_SKB_CB(skb);
335
336 mac80211_hwsim_monitor_rx(hw, skb);
Jouni Malinene36cfdc2008-06-13 19:44:48 +0300337 mac80211_hwsim_tx_frame(hw, skb);
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300338 dev_kfree_skb(skb);
339}
340
341
342static void mac80211_hwsim_beacon(unsigned long arg)
343{
344 struct ieee80211_hw *hw = (struct ieee80211_hw *) arg;
345 struct mac80211_hwsim_data *data = hw->priv;
346
347 if (!data->started || !data->radio_enabled)
348 return;
349
Jouni Malinenf248f102008-06-13 19:44:47 +0300350 ieee80211_iterate_active_interfaces_atomic(
351 hw, mac80211_hwsim_beacon_tx, hw);
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300352
353 data->beacon_timer.expires = jiffies + data->beacon_int;
354 add_timer(&data->beacon_timer);
355}
356
357
358static int mac80211_hwsim_config(struct ieee80211_hw *hw,
359 struct ieee80211_conf *conf)
360{
361 struct mac80211_hwsim_data *data = hw->priv;
362
363 printk(KERN_DEBUG "%s:%s (freq=%d radio_enabled=%d beacon_int=%d)\n",
364 wiphy_name(hw->wiphy), __func__,
365 conf->channel->center_freq, conf->radio_enabled,
366 conf->beacon_int);
367
368 data->channel = conf->channel;
369 data->radio_enabled = conf->radio_enabled;
370 data->beacon_int = 1024 * conf->beacon_int / 1000 * HZ / 1000;
371 if (data->beacon_int < 1)
372 data->beacon_int = 1;
373
374 if (!data->started || !data->radio_enabled)
375 del_timer(&data->beacon_timer);
376 else
377 mod_timer(&data->beacon_timer, jiffies + data->beacon_int);
378
379 return 0;
380}
381
382
383static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
384 unsigned int changed_flags,
385 unsigned int *total_flags,
386 int mc_count,
387 struct dev_addr_list *mc_list)
388{
389 struct mac80211_hwsim_data *data = hw->priv;
390
391 printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
392
393 data->rx_filter = 0;
394 if (*total_flags & FIF_PROMISC_IN_BSS)
395 data->rx_filter |= FIF_PROMISC_IN_BSS;
396 if (*total_flags & FIF_ALLMULTI)
397 data->rx_filter |= FIF_ALLMULTI;
398
399 *total_flags = data->rx_filter;
400}
401
Johannes Berg8aa21e62008-09-11 02:16:36 +0200402static int mac80211_hwsim_config_interface(struct ieee80211_hw *hw,
403 struct ieee80211_vif *vif,
404 struct ieee80211_if_conf *conf)
405{
406 hwsim_check_magic(vif);
407 return 0;
408}
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300409
Johannes Berg8aa21e62008-09-11 02:16:36 +0200410static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
411 struct ieee80211_vif *vif,
412 struct ieee80211_bss_conf *info,
413 u32 changed)
414{
415 hwsim_check_magic(vif);
416}
417
418static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
419 struct ieee80211_vif *vif,
Johannes Berg17741cd2008-09-11 00:02:02 +0200420 enum sta_notify_cmd cmd,
421 struct ieee80211_sta *sta)
Johannes Berg8aa21e62008-09-11 02:16:36 +0200422{
423 hwsim_check_magic(vif);
Johannes Berg81c06522008-09-11 02:17:01 +0200424 switch (cmd) {
425 case STA_NOTIFY_ADD:
426 hwsim_set_sta_magic(sta);
427 break;
428 case STA_NOTIFY_REMOVE:
429 hwsim_clear_sta_magic(sta);
430 break;
431 }
432}
433
434static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
435 struct ieee80211_sta *sta,
436 bool set)
437{
438 hwsim_check_sta_magic(sta);
439 return 0;
Johannes Berg8aa21e62008-09-11 02:16:36 +0200440}
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300441
442static const struct ieee80211_ops mac80211_hwsim_ops =
443{
444 .tx = mac80211_hwsim_tx,
445 .start = mac80211_hwsim_start,
446 .stop = mac80211_hwsim_stop,
447 .add_interface = mac80211_hwsim_add_interface,
448 .remove_interface = mac80211_hwsim_remove_interface,
449 .config = mac80211_hwsim_config,
450 .configure_filter = mac80211_hwsim_configure_filter,
Johannes Berg8aa21e62008-09-11 02:16:36 +0200451 .config_interface = mac80211_hwsim_config_interface,
452 .bss_info_changed = mac80211_hwsim_bss_info_changed,
453 .sta_notify = mac80211_hwsim_sta_notify,
Johannes Berg81c06522008-09-11 02:17:01 +0200454 .set_tim = mac80211_hwsim_set_tim,
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300455};
456
457
458static void mac80211_hwsim_free(void)
459{
460 int i;
461
462 for (i = 0; i < hwsim_radio_count; i++) {
463 if (hwsim_radios[i]) {
464 struct mac80211_hwsim_data *data;
465 data = hwsim_radios[i]->priv;
466 ieee80211_unregister_hw(hwsim_radios[i]);
Ian Schram3a33cc12008-07-21 13:19:35 -0700467 device_unregister(data->dev);
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300468 ieee80211_free_hw(hwsim_radios[i]);
469 }
470 }
471 kfree(hwsim_radios);
472 class_destroy(hwsim_class);
473}
474
475
476static struct device_driver mac80211_hwsim_driver = {
477 .name = "mac80211_hwsim"
478};
479
480
481static void hwsim_mon_setup(struct net_device *dev)
482{
483 dev->hard_start_xmit = hwsim_mon_xmit;
484 dev->destructor = free_netdev;
485 ether_setup(dev);
486 dev->tx_queue_len = 0;
487 dev->type = ARPHRD_IEEE80211_RADIOTAP;
488 memset(dev->dev_addr, 0, ETH_ALEN);
489 dev->dev_addr[0] = 0x12;
490}
491
492
493static int __init init_mac80211_hwsim(void)
494{
495 int i, err = 0;
496 u8 addr[ETH_ALEN];
497 struct mac80211_hwsim_data *data;
498 struct ieee80211_hw *hw;
499 DECLARE_MAC_BUF(mac);
500
501 if (radios < 1 || radios > 65535)
502 return -EINVAL;
503
504 hwsim_radio_count = radios;
505 hwsim_radios = kcalloc(hwsim_radio_count,
506 sizeof(struct ieee80211_hw *), GFP_KERNEL);
507 if (hwsim_radios == NULL)
508 return -ENOMEM;
509
510 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
511 if (IS_ERR(hwsim_class)) {
512 kfree(hwsim_radios);
513 return PTR_ERR(hwsim_class);
514 }
515
516 memset(addr, 0, ETH_ALEN);
517 addr[0] = 0x02;
518
519 for (i = 0; i < hwsim_radio_count; i++) {
520 printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
521 i);
522 hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);
523 if (hw == NULL) {
524 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
525 "failed\n");
526 err = -ENOMEM;
527 goto failed;
528 }
529 hwsim_radios[i] = hw;
530
531 data = hw->priv;
Stephen Rothwelle800f172008-06-16 15:35:10 +1000532 data->dev = device_create_drvdata(hwsim_class, NULL, 0, hw,
533 "hwsim%d", i);
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300534 if (IS_ERR(data->dev)) {
Stephen Rothwelle800f172008-06-16 15:35:10 +1000535 printk(KERN_DEBUG
536 "mac80211_hwsim: device_create_drvdata "
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300537 "failed (%ld)\n", PTR_ERR(data->dev));
538 err = -ENOMEM;
Ian Schram3a33cc12008-07-21 13:19:35 -0700539 goto failed_drvdata;
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300540 }
541 data->dev->driver = &mac80211_hwsim_driver;
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300542
543 SET_IEEE80211_DEV(hw, data->dev);
544 addr[3] = i >> 8;
545 addr[4] = i;
546 SET_IEEE80211_PERM_ADDR(hw, addr);
547
548 hw->channel_change_time = 1;
Jouni Malinen87e8b642008-08-21 21:45:56 +0300549 hw->queues = 4;
Luis R. Rodriguezf59ac042008-08-29 16:26:43 -0700550 hw->wiphy->interface_modes =
551 BIT(NL80211_IFTYPE_STATION) |
552 BIT(NL80211_IFTYPE_AP);
Jouni Malinen87e8b642008-08-21 21:45:56 +0300553 hw->ampdu_queues = 1;
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300554
Johannes Berg8aa21e62008-09-11 02:16:36 +0200555 /* ask mac80211 to reserve space for magic */
556 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
Johannes Berg81c06522008-09-11 02:17:01 +0200557 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
Johannes Berg8aa21e62008-09-11 02:16:36 +0200558
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300559 memcpy(data->channels, hwsim_channels, sizeof(hwsim_channels));
560 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
561 data->band.channels = data->channels;
562 data->band.n_channels = ARRAY_SIZE(hwsim_channels);
563 data->band.bitrates = data->rates;
564 data->band.n_bitrates = ARRAY_SIZE(hwsim_rates);
Jouni Malinen87e8b642008-08-21 21:45:56 +0300565 data->band.ht_info.ht_supported = 1;
566 data->band.ht_info.cap = IEEE80211_HT_CAP_SUP_WIDTH |
567 IEEE80211_HT_CAP_GRN_FLD |
568 IEEE80211_HT_CAP_SGI_40 |
569 IEEE80211_HT_CAP_DSSSCCK40;
570 data->band.ht_info.ampdu_factor = 0x3;
571 data->band.ht_info.ampdu_density = 0x6;
572 memset(data->band.ht_info.supp_mcs_set, 0,
573 sizeof(data->band.ht_info.supp_mcs_set));
574 data->band.ht_info.supp_mcs_set[0] = 0xff;
575 data->band.ht_info.supp_mcs_set[1] = 0xff;
576 data->band.ht_info.supp_mcs_set[12] =
577 IEEE80211_HT_CAP_MCS_TX_DEFINED;
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300578 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &data->band;
579
580 err = ieee80211_register_hw(hw);
581 if (err < 0) {
582 printk(KERN_DEBUG "mac80211_hwsim: "
583 "ieee80211_register_hw failed (%d)\n", err);
Ian Schram3a33cc12008-07-21 13:19:35 -0700584 goto failed_hw;
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300585 }
586
587 printk(KERN_DEBUG "%s: hwaddr %s registered\n",
588 wiphy_name(hw->wiphy),
589 print_mac(mac, hw->wiphy->perm_addr));
590
591 setup_timer(&data->beacon_timer, mac80211_hwsim_beacon,
592 (unsigned long) hw);
593 }
594
595 hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
596 if (hwsim_mon == NULL)
597 goto failed;
598
599 rtnl_lock();
600
601 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
Ian Schram3a33cc12008-07-21 13:19:35 -0700602 if (err < 0)
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300603 goto failed_mon;
Ian Schram3a33cc12008-07-21 13:19:35 -0700604
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300605
606 err = register_netdevice(hwsim_mon);
607 if (err < 0)
608 goto failed_mon;
609
610 rtnl_unlock();
611
612 return 0;
613
614failed_mon:
615 rtnl_unlock();
616 free_netdev(hwsim_mon);
Ian Schram3a33cc12008-07-21 13:19:35 -0700617 mac80211_hwsim_free();
618 return err;
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300619
Ian Schram3a33cc12008-07-21 13:19:35 -0700620failed_hw:
621 device_unregister(data->dev);
622failed_drvdata:
623 ieee80211_free_hw(hw);
Harvey Harrison0b06b2a2008-07-23 18:36:38 -0700624 hwsim_radios[i] = NULL;
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300625failed:
626 mac80211_hwsim_free();
627 return err;
628}
629
630
631static void __exit exit_mac80211_hwsim(void)
632{
633 printk(KERN_DEBUG "mac80211_hwsim: unregister %d radios\n",
634 hwsim_radio_count);
635
636 unregister_netdev(hwsim_mon);
637 mac80211_hwsim_free();
638}
639
640
641module_init(init_mac80211_hwsim);
642module_exit(exit_mac80211_hwsim);