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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") | |
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> | |
90e3012e JB |
18 | #include <net/dst.h> |
19 | #include <net/xfrm.h> | |
acc1e7a3 JM |
20 | #include <net/mac80211.h> |
21 | #include <net/ieee80211_radiotap.h> | |
22 | #include <linux/if_arp.h> | |
23 | #include <linux/rtnetlink.h> | |
24 | #include <linux/etherdevice.h> | |
fc6971d4 | 25 | #include <linux/debugfs.h> |
acc1e7a3 JM |
26 | |
27 | MODULE_AUTHOR("Jouni Malinen"); | |
28 | MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211"); | |
29 | MODULE_LICENSE("GPL"); | |
30 | ||
31 | static int radios = 2; | |
32 | module_param(radios, int, 0444); | |
33 | MODULE_PARM_DESC(radios, "Number of simulated radios"); | |
34 | ||
4a5af9c2 LR |
35 | /** |
36 | * enum hwsim_regtest - the type of regulatory tests we offer | |
37 | * | |
38 | * These are the different values you can use for the regtest | |
39 | * module parameter. This is useful to help test world roaming | |
40 | * and the driver regulatory_hint() call and combinations of these. | |
41 | * If you want to do specific alpha2 regulatory domain tests simply | |
42 | * use the userspace regulatory request as that will be respected as | |
43 | * well without the need of this module parameter. This is designed | |
44 | * only for testing the driver regulatory request, world roaming | |
45 | * and all possible combinations. | |
46 | * | |
47 | * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed, | |
48 | * this is the default value. | |
49 | * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory | |
50 | * hint, only one driver regulatory hint will be sent as such the | |
51 | * secondary radios are expected to follow. | |
52 | * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory | |
53 | * request with all radios reporting the same regulatory domain. | |
54 | * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling | |
55 | * different regulatory domains requests. Expected behaviour is for | |
56 | * an intersection to occur but each device will still use their | |
57 | * respective regulatory requested domains. Subsequent radios will | |
58 | * use the resulting intersection. | |
59 | * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We acomplish | |
60 | * this by using a custom beacon-capable regulatory domain for the first | |
61 | * radio. All other device world roam. | |
62 | * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory | |
63 | * domain requests. All radios will adhere to this custom world regulatory | |
64 | * domain. | |
65 | * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory | |
66 | * domain requests. The first radio will adhere to the first custom world | |
67 | * regulatory domain, the second one to the second custom world regulatory | |
68 | * domain. All other devices will world roam. | |
69 | * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain | |
70 | * settings, only the first radio will send a regulatory domain request | |
71 | * and use strict settings. The rest of the radios are expected to follow. | |
72 | * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain | |
73 | * settings. All radios will adhere to this. | |
74 | * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory | |
75 | * domain settings, combined with secondary driver regulatory domain | |
76 | * settings. The first radio will get a strict regulatory domain setting | |
77 | * using the first driver regulatory request and the second radio will use | |
78 | * non-strict settings using the second driver regulatory request. All | |
79 | * other devices should follow the intersection created between the | |
80 | * first two. | |
81 | * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need | |
82 | * at least 6 radios for a complete test. We will test in this order: | |
83 | * 1 - driver custom world regulatory domain | |
84 | * 2 - second custom world regulatory domain | |
85 | * 3 - first driver regulatory domain request | |
86 | * 4 - second driver regulatory domain request | |
87 | * 5 - strict regulatory domain settings using the third driver regulatory | |
88 | * domain request | |
89 | * 6 and on - should follow the intersection of the 3rd, 4rth and 5th radio | |
90 | * regulatory requests. | |
91 | */ | |
92 | enum hwsim_regtest { | |
93 | HWSIM_REGTEST_DISABLED = 0, | |
94 | HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1, | |
95 | HWSIM_REGTEST_DRIVER_REG_ALL = 2, | |
96 | HWSIM_REGTEST_DIFF_COUNTRY = 3, | |
97 | HWSIM_REGTEST_WORLD_ROAM = 4, | |
98 | HWSIM_REGTEST_CUSTOM_WORLD = 5, | |
99 | HWSIM_REGTEST_CUSTOM_WORLD_2 = 6, | |
100 | HWSIM_REGTEST_STRICT_FOLLOW = 7, | |
101 | HWSIM_REGTEST_STRICT_ALL = 8, | |
102 | HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9, | |
103 | HWSIM_REGTEST_ALL = 10, | |
104 | }; | |
105 | ||
106 | /* Set to one of the HWSIM_REGTEST_* values above */ | |
107 | static int regtest = HWSIM_REGTEST_DISABLED; | |
108 | module_param(regtest, int, 0444); | |
109 | MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run"); | |
110 | ||
111 | static const char *hwsim_alpha2s[] = { | |
112 | "FI", | |
113 | "AL", | |
114 | "US", | |
115 | "DE", | |
116 | "JP", | |
117 | "AL", | |
118 | }; | |
119 | ||
120 | static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = { | |
121 | .n_reg_rules = 4, | |
122 | .alpha2 = "99", | |
123 | .reg_rules = { | |
124 | REG_RULE(2412-10, 2462+10, 40, 0, 20, 0), | |
125 | REG_RULE(2484-10, 2484+10, 40, 0, 20, 0), | |
126 | REG_RULE(5150-10, 5240+10, 40, 0, 30, 0), | |
127 | REG_RULE(5745-10, 5825+10, 40, 0, 30, 0), | |
128 | } | |
129 | }; | |
130 | ||
131 | static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = { | |
132 | .n_reg_rules = 2, | |
133 | .alpha2 = "99", | |
134 | .reg_rules = { | |
135 | REG_RULE(2412-10, 2462+10, 40, 0, 20, 0), | |
136 | REG_RULE(5725-10, 5850+10, 40, 0, 30, | |
137 | NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS), | |
138 | } | |
139 | }; | |
140 | ||
8aa21e6f JB |
141 | struct hwsim_vif_priv { |
142 | u32 magic; | |
fc6971d4 JM |
143 | u8 bssid[ETH_ALEN]; |
144 | bool assoc; | |
145 | u16 aid; | |
8aa21e6f JB |
146 | }; |
147 | ||
148 | #define HWSIM_VIF_MAGIC 0x69537748 | |
149 | ||
150 | static inline void hwsim_check_magic(struct ieee80211_vif *vif) | |
151 | { | |
152 | struct hwsim_vif_priv *vp = (void *)vif->drv_priv; | |
153 | WARN_ON(vp->magic != HWSIM_VIF_MAGIC); | |
154 | } | |
155 | ||
156 | static inline void hwsim_set_magic(struct ieee80211_vif *vif) | |
157 | { | |
158 | struct hwsim_vif_priv *vp = (void *)vif->drv_priv; | |
159 | vp->magic = HWSIM_VIF_MAGIC; | |
160 | } | |
161 | ||
162 | static inline void hwsim_clear_magic(struct ieee80211_vif *vif) | |
163 | { | |
164 | struct hwsim_vif_priv *vp = (void *)vif->drv_priv; | |
165 | vp->magic = 0; | |
166 | } | |
acc1e7a3 | 167 | |
81c06523 JB |
168 | struct hwsim_sta_priv { |
169 | u32 magic; | |
170 | }; | |
171 | ||
172 | #define HWSIM_STA_MAGIC 0x6d537748 | |
173 | ||
174 | static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta) | |
175 | { | |
176 | struct hwsim_sta_priv *sp = (void *)sta->drv_priv; | |
5d6924ea | 177 | WARN_ON(sp->magic != HWSIM_STA_MAGIC); |
81c06523 JB |
178 | } |
179 | ||
180 | static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta) | |
181 | { | |
182 | struct hwsim_sta_priv *sp = (void *)sta->drv_priv; | |
5d6924ea | 183 | sp->magic = HWSIM_STA_MAGIC; |
81c06523 JB |
184 | } |
185 | ||
186 | static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta) | |
187 | { | |
188 | struct hwsim_sta_priv *sp = (void *)sta->drv_priv; | |
189 | sp->magic = 0; | |
190 | } | |
191 | ||
acc1e7a3 JM |
192 | static struct class *hwsim_class; |
193 | ||
acc1e7a3 JM |
194 | static struct net_device *hwsim_mon; /* global monitor netdev */ |
195 | ||
22cad735 LR |
196 | #define CHAN2G(_freq) { \ |
197 | .band = IEEE80211_BAND_2GHZ, \ | |
198 | .center_freq = (_freq), \ | |
199 | .hw_value = (_freq), \ | |
200 | .max_power = 20, \ | |
201 | } | |
202 | ||
203 | #define CHAN5G(_freq) { \ | |
204 | .band = IEEE80211_BAND_5GHZ, \ | |
205 | .center_freq = (_freq), \ | |
206 | .hw_value = (_freq), \ | |
207 | .max_power = 20, \ | |
208 | } | |
209 | ||
210 | static const struct ieee80211_channel hwsim_channels_2ghz[] = { | |
211 | CHAN2G(2412), /* Channel 1 */ | |
212 | CHAN2G(2417), /* Channel 2 */ | |
213 | CHAN2G(2422), /* Channel 3 */ | |
214 | CHAN2G(2427), /* Channel 4 */ | |
215 | CHAN2G(2432), /* Channel 5 */ | |
216 | CHAN2G(2437), /* Channel 6 */ | |
217 | CHAN2G(2442), /* Channel 7 */ | |
218 | CHAN2G(2447), /* Channel 8 */ | |
219 | CHAN2G(2452), /* Channel 9 */ | |
220 | CHAN2G(2457), /* Channel 10 */ | |
221 | CHAN2G(2462), /* Channel 11 */ | |
222 | CHAN2G(2467), /* Channel 12 */ | |
223 | CHAN2G(2472), /* Channel 13 */ | |
224 | CHAN2G(2484), /* Channel 14 */ | |
225 | }; | |
acc1e7a3 | 226 | |
22cad735 LR |
227 | static const struct ieee80211_channel hwsim_channels_5ghz[] = { |
228 | CHAN5G(5180), /* Channel 36 */ | |
229 | CHAN5G(5200), /* Channel 40 */ | |
230 | CHAN5G(5220), /* Channel 44 */ | |
231 | CHAN5G(5240), /* Channel 48 */ | |
232 | ||
233 | CHAN5G(5260), /* Channel 52 */ | |
234 | CHAN5G(5280), /* Channel 56 */ | |
235 | CHAN5G(5300), /* Channel 60 */ | |
236 | CHAN5G(5320), /* Channel 64 */ | |
237 | ||
238 | CHAN5G(5500), /* Channel 100 */ | |
239 | CHAN5G(5520), /* Channel 104 */ | |
240 | CHAN5G(5540), /* Channel 108 */ | |
241 | CHAN5G(5560), /* Channel 112 */ | |
242 | CHAN5G(5580), /* Channel 116 */ | |
243 | CHAN5G(5600), /* Channel 120 */ | |
244 | CHAN5G(5620), /* Channel 124 */ | |
245 | CHAN5G(5640), /* Channel 128 */ | |
246 | CHAN5G(5660), /* Channel 132 */ | |
247 | CHAN5G(5680), /* Channel 136 */ | |
248 | CHAN5G(5700), /* Channel 140 */ | |
249 | ||
250 | CHAN5G(5745), /* Channel 149 */ | |
251 | CHAN5G(5765), /* Channel 153 */ | |
252 | CHAN5G(5785), /* Channel 157 */ | |
253 | CHAN5G(5805), /* Channel 161 */ | |
254 | CHAN5G(5825), /* Channel 165 */ | |
acc1e7a3 JM |
255 | }; |
256 | ||
257 | static const struct ieee80211_rate hwsim_rates[] = { | |
258 | { .bitrate = 10 }, | |
259 | { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
260 | { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
261 | { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
262 | { .bitrate = 60 }, | |
263 | { .bitrate = 90 }, | |
264 | { .bitrate = 120 }, | |
265 | { .bitrate = 180 }, | |
266 | { .bitrate = 240 }, | |
267 | { .bitrate = 360 }, | |
268 | { .bitrate = 480 }, | |
269 | { .bitrate = 540 } | |
270 | }; | |
271 | ||
0e057d73 JB |
272 | static spinlock_t hwsim_radio_lock; |
273 | static struct list_head hwsim_radios; | |
274 | ||
acc1e7a3 | 275 | struct mac80211_hwsim_data { |
0e057d73 JB |
276 | struct list_head list; |
277 | struct ieee80211_hw *hw; | |
acc1e7a3 | 278 | struct device *dev; |
22cad735 LR |
279 | struct ieee80211_supported_band bands[2]; |
280 | struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)]; | |
281 | struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)]; | |
acc1e7a3 JM |
282 | struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)]; |
283 | ||
284 | struct ieee80211_channel *channel; | |
acc1e7a3 JM |
285 | unsigned long beacon_int; /* in jiffies unit */ |
286 | unsigned int rx_filter; | |
287 | int started; | |
288 | struct timer_list beacon_timer; | |
fc6971d4 JM |
289 | enum ps_mode { |
290 | PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL | |
291 | } ps; | |
292 | bool ps_poll_pending; | |
293 | struct dentry *debugfs; | |
294 | struct dentry *debugfs_ps; | |
73606d00 DW |
295 | |
296 | /* | |
297 | * Only radios in the same group can communicate together (the | |
298 | * channel has to match too). Each bit represents a group. A | |
299 | * radio can be in more then one group. | |
300 | */ | |
301 | u64 group; | |
302 | struct dentry *debugfs_group; | |
acc1e7a3 JM |
303 | }; |
304 | ||
305 | ||
306 | struct hwsim_radiotap_hdr { | |
307 | struct ieee80211_radiotap_header hdr; | |
308 | u8 rt_flags; | |
309 | u8 rt_rate; | |
310 | __le16 rt_channel; | |
311 | __le16 rt_chbitmask; | |
312 | } __attribute__ ((packed)); | |
313 | ||
314 | ||
315 | static int hwsim_mon_xmit(struct sk_buff *skb, struct net_device *dev) | |
316 | { | |
317 | /* TODO: allow packet injection */ | |
318 | dev_kfree_skb(skb); | |
6ed10654 | 319 | return NETDEV_TX_OK; |
acc1e7a3 JM |
320 | } |
321 | ||
322 | ||
323 | static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw, | |
324 | struct sk_buff *tx_skb) | |
325 | { | |
326 | struct mac80211_hwsim_data *data = hw->priv; | |
327 | struct sk_buff *skb; | |
328 | struct hwsim_radiotap_hdr *hdr; | |
329 | u16 flags; | |
330 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb); | |
331 | struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info); | |
332 | ||
333 | if (!netif_running(hwsim_mon)) | |
334 | return; | |
335 | ||
336 | skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC); | |
337 | if (skb == NULL) | |
338 | return; | |
339 | ||
340 | hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr)); | |
341 | hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION; | |
342 | hdr->hdr.it_pad = 0; | |
343 | hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr)); | |
f248f105 JM |
344 | hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) | |
345 | (1 << IEEE80211_RADIOTAP_RATE) | | |
346 | (1 << IEEE80211_RADIOTAP_CHANNEL)); | |
acc1e7a3 JM |
347 | hdr->rt_flags = 0; |
348 | hdr->rt_rate = txrate->bitrate / 5; | |
df70b4ac | 349 | hdr->rt_channel = cpu_to_le16(data->channel->center_freq); |
acc1e7a3 JM |
350 | flags = IEEE80211_CHAN_2GHZ; |
351 | if (txrate->flags & IEEE80211_RATE_ERP_G) | |
352 | flags |= IEEE80211_CHAN_OFDM; | |
353 | else | |
354 | flags |= IEEE80211_CHAN_CCK; | |
355 | hdr->rt_chbitmask = cpu_to_le16(flags); | |
356 | ||
357 | skb->dev = hwsim_mon; | |
358 | skb_set_mac_header(skb, 0); | |
359 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
360 | skb->pkt_type = PACKET_OTHERHOST; | |
f248f105 | 361 | skb->protocol = htons(ETH_P_802_2); |
acc1e7a3 JM |
362 | memset(skb->cb, 0, sizeof(skb->cb)); |
363 | netif_rx(skb); | |
364 | } | |
365 | ||
366 | ||
fc6971d4 JM |
367 | static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data, |
368 | struct sk_buff *skb) | |
369 | { | |
370 | switch (data->ps) { | |
371 | case PS_DISABLED: | |
372 | return true; | |
373 | case PS_ENABLED: | |
374 | return false; | |
375 | case PS_AUTO_POLL: | |
376 | /* TODO: accept (some) Beacons by default and other frames only | |
377 | * if pending PS-Poll has been sent */ | |
378 | return true; | |
379 | case PS_MANUAL_POLL: | |
380 | /* Allow unicast frames to own address if there is a pending | |
381 | * PS-Poll */ | |
382 | if (data->ps_poll_pending && | |
383 | memcmp(data->hw->wiphy->perm_addr, skb->data + 4, | |
384 | ETH_ALEN) == 0) { | |
385 | data->ps_poll_pending = false; | |
386 | return true; | |
387 | } | |
388 | return false; | |
389 | } | |
390 | ||
391 | return true; | |
392 | } | |
393 | ||
394 | ||
0e057d73 JB |
395 | static bool mac80211_hwsim_tx_frame(struct ieee80211_hw *hw, |
396 | struct sk_buff *skb) | |
acc1e7a3 | 397 | { |
0e057d73 JB |
398 | struct mac80211_hwsim_data *data = hw->priv, *data2; |
399 | bool ack = false; | |
e36cfdc9 | 400 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; |
acc1e7a3 | 401 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
e36cfdc9 | 402 | struct ieee80211_rx_status rx_status; |
acc1e7a3 JM |
403 | |
404 | memset(&rx_status, 0, sizeof(rx_status)); | |
405 | /* TODO: set mactime */ | |
406 | rx_status.freq = data->channel->center_freq; | |
407 | rx_status.band = data->channel->band; | |
e6a9854b | 408 | rx_status.rate_idx = info->control.rates[0].idx; |
4b14c96d JB |
409 | /* TODO: simulate real signal strength (and optional packet loss) */ |
410 | rx_status.signal = -50; | |
acc1e7a3 | 411 | |
fc6971d4 JM |
412 | if (data->ps != PS_DISABLED) |
413 | hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM); | |
414 | ||
90e3012e JB |
415 | /* release the skb's source info */ |
416 | skb_orphan(skb); | |
c0acf38e | 417 | skb_dst_drop(skb); |
90e3012e JB |
418 | skb->mark = 0; |
419 | secpath_reset(skb); | |
420 | nf_reset(skb); | |
421 | ||
acc1e7a3 | 422 | /* Copy skb to all enabled radios that are on the current frequency */ |
0e057d73 JB |
423 | spin_lock(&hwsim_radio_lock); |
424 | list_for_each_entry(data2, &hwsim_radios, list) { | |
acc1e7a3 JM |
425 | struct sk_buff *nskb; |
426 | ||
0e057d73 | 427 | if (data == data2) |
acc1e7a3 | 428 | continue; |
0e057d73 | 429 | |
4c4c671a | 430 | if (!data2->started || !hwsim_ps_rx_ok(data2, skb) || |
4ff17667 | 431 | !data->channel || !data2->channel || |
73606d00 DW |
432 | data->channel->center_freq != data2->channel->center_freq || |
433 | !(data->group & data2->group)) | |
acc1e7a3 JM |
434 | continue; |
435 | ||
436 | nskb = skb_copy(skb, GFP_ATOMIC); | |
437 | if (nskb == NULL) | |
438 | continue; | |
439 | ||
0e057d73 | 440 | if (memcmp(hdr->addr1, data2->hw->wiphy->perm_addr, |
acc1e7a3 | 441 | ETH_ALEN) == 0) |
0e057d73 | 442 | ack = true; |
f1d58c25 JB |
443 | memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status)); |
444 | ieee80211_rx_irqsafe(data2->hw, nskb); | |
acc1e7a3 | 445 | } |
0e057d73 | 446 | spin_unlock(&hwsim_radio_lock); |
acc1e7a3 | 447 | |
e36cfdc9 JM |
448 | return ack; |
449 | } | |
450 | ||
451 | ||
452 | static int mac80211_hwsim_tx(struct ieee80211_hw *hw, struct sk_buff *skb) | |
453 | { | |
0e057d73 | 454 | bool ack; |
e36cfdc9 JM |
455 | struct ieee80211_tx_info *txi; |
456 | ||
457 | mac80211_hwsim_monitor_rx(hw, skb); | |
458 | ||
459 | if (skb->len < 10) { | |
460 | /* Should not happen; just a sanity check for addr1 use */ | |
461 | dev_kfree_skb(skb); | |
462 | return NETDEV_TX_OK; | |
463 | } | |
464 | ||
e36cfdc9 JM |
465 | ack = mac80211_hwsim_tx_frame(hw, skb); |
466 | ||
acc1e7a3 | 467 | txi = IEEE80211_SKB_CB(skb); |
8aa21e6f | 468 | |
25d834e1 JB |
469 | if (txi->control.vif) |
470 | hwsim_check_magic(txi->control.vif); | |
81c06523 JB |
471 | if (txi->control.sta) |
472 | hwsim_check_sta_magic(txi->control.sta); | |
8aa21e6f | 473 | |
e6a9854b JB |
474 | ieee80211_tx_info_clear_status(txi); |
475 | if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack) | |
476 | txi->flags |= IEEE80211_TX_STAT_ACK; | |
acc1e7a3 JM |
477 | ieee80211_tx_status_irqsafe(hw, skb); |
478 | return NETDEV_TX_OK; | |
479 | } | |
480 | ||
481 | ||
482 | static int mac80211_hwsim_start(struct ieee80211_hw *hw) | |
483 | { | |
484 | struct mac80211_hwsim_data *data = hw->priv; | |
485 | printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__); | |
486 | data->started = 1; | |
487 | return 0; | |
488 | } | |
489 | ||
490 | ||
491 | static void mac80211_hwsim_stop(struct ieee80211_hw *hw) | |
492 | { | |
493 | struct mac80211_hwsim_data *data = hw->priv; | |
494 | data->started = 0; | |
ab1ef980 | 495 | del_timer(&data->beacon_timer); |
acc1e7a3 JM |
496 | printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__); |
497 | } | |
498 | ||
499 | ||
500 | static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw, | |
501 | 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 | 506 | hwsim_set_magic(conf->vif); |
acc1e7a3 JM |
507 | return 0; |
508 | } | |
509 | ||
510 | ||
511 | static void mac80211_hwsim_remove_interface( | |
512 | struct ieee80211_hw *hw, struct ieee80211_if_init_conf *conf) | |
513 | { | |
e174961c | 514 | printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%pM)\n", |
acc1e7a3 | 515 | wiphy_name(hw->wiphy), __func__, conf->type, |
e174961c | 516 | conf->mac_addr); |
8aa21e6f JB |
517 | hwsim_check_magic(conf->vif); |
518 | hwsim_clear_magic(conf->vif); | |
acc1e7a3 JM |
519 | } |
520 | ||
521 | ||
522 | static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac, | |
523 | struct ieee80211_vif *vif) | |
524 | { | |
525 | struct ieee80211_hw *hw = arg; | |
acc1e7a3 | 526 | struct sk_buff *skb; |
acc1e7a3 JM |
527 | struct ieee80211_tx_info *info; |
528 | ||
8aa21e6f JB |
529 | hwsim_check_magic(vif); |
530 | ||
55b39619 AY |
531 | if (vif->type != NL80211_IFTYPE_AP && |
532 | vif->type != NL80211_IFTYPE_MESH_POINT) | |
acc1e7a3 JM |
533 | return; |
534 | ||
535 | skb = ieee80211_beacon_get(hw, vif); | |
536 | if (skb == NULL) | |
537 | return; | |
538 | info = IEEE80211_SKB_CB(skb); | |
539 | ||
540 | mac80211_hwsim_monitor_rx(hw, skb); | |
e36cfdc9 | 541 | mac80211_hwsim_tx_frame(hw, skb); |
acc1e7a3 JM |
542 | dev_kfree_skb(skb); |
543 | } | |
544 | ||
545 | ||
546 | static void mac80211_hwsim_beacon(unsigned long arg) | |
547 | { | |
548 | struct ieee80211_hw *hw = (struct ieee80211_hw *) arg; | |
549 | struct mac80211_hwsim_data *data = hw->priv; | |
550 | ||
4c4c671a | 551 | if (!data->started) |
acc1e7a3 JM |
552 | return; |
553 | ||
f248f105 JM |
554 | ieee80211_iterate_active_interfaces_atomic( |
555 | hw, mac80211_hwsim_beacon_tx, hw); | |
acc1e7a3 JM |
556 | |
557 | data->beacon_timer.expires = jiffies + data->beacon_int; | |
558 | add_timer(&data->beacon_timer); | |
559 | } | |
560 | ||
561 | ||
e8975581 | 562 | static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed) |
acc1e7a3 JM |
563 | { |
564 | struct mac80211_hwsim_data *data = hw->priv; | |
e8975581 | 565 | struct ieee80211_conf *conf = &hw->conf; |
acc1e7a3 | 566 | |
4c4c671a | 567 | printk(KERN_DEBUG "%s:%s (freq=%d idle=%d ps=%d)\n", |
acc1e7a3 | 568 | wiphy_name(hw->wiphy), __func__, |
4c4c671a | 569 | conf->channel->center_freq, |
5cff20e6 JB |
570 | !!(conf->flags & IEEE80211_CONF_IDLE), |
571 | !!(conf->flags & IEEE80211_CONF_PS)); | |
acc1e7a3 JM |
572 | |
573 | data->channel = conf->channel; | |
4c4c671a | 574 | if (!data->started || !data->beacon_int) |
acc1e7a3 JM |
575 | del_timer(&data->beacon_timer); |
576 | else | |
577 | mod_timer(&data->beacon_timer, jiffies + data->beacon_int); | |
578 | ||
579 | return 0; | |
580 | } | |
581 | ||
582 | ||
583 | static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw, | |
584 | unsigned int changed_flags, | |
585 | unsigned int *total_flags, | |
586 | int mc_count, | |
587 | struct dev_addr_list *mc_list) | |
588 | { | |
589 | struct mac80211_hwsim_data *data = hw->priv; | |
590 | ||
591 | printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__); | |
592 | ||
593 | data->rx_filter = 0; | |
594 | if (*total_flags & FIF_PROMISC_IN_BSS) | |
595 | data->rx_filter |= FIF_PROMISC_IN_BSS; | |
596 | if (*total_flags & FIF_ALLMULTI) | |
597 | data->rx_filter |= FIF_ALLMULTI; | |
598 | ||
599 | *total_flags = data->rx_filter; | |
600 | } | |
601 | ||
8aa21e6f JB |
602 | static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw, |
603 | struct ieee80211_vif *vif, | |
604 | struct ieee80211_bss_conf *info, | |
605 | u32 changed) | |
606 | { | |
fc6971d4 | 607 | struct hwsim_vif_priv *vp = (void *)vif->drv_priv; |
57c4d7b4 | 608 | struct mac80211_hwsim_data *data = hw->priv; |
fc6971d4 | 609 | |
8aa21e6f | 610 | hwsim_check_magic(vif); |
fe63bfa3 JM |
611 | |
612 | printk(KERN_DEBUG "%s:%s(changed=0x%x)\n", | |
613 | wiphy_name(hw->wiphy), __func__, changed); | |
614 | ||
2d0ddec5 JB |
615 | if (changed & BSS_CHANGED_BSSID) { |
616 | printk(KERN_DEBUG "%s:%s: BSSID changed: %pM\n", | |
617 | wiphy_name(hw->wiphy), __func__, | |
618 | info->bssid); | |
619 | memcpy(vp->bssid, info->bssid, ETH_ALEN); | |
620 | } | |
621 | ||
fe63bfa3 JM |
622 | if (changed & BSS_CHANGED_ASSOC) { |
623 | printk(KERN_DEBUG " %s: ASSOC: assoc=%d aid=%d\n", | |
624 | wiphy_name(hw->wiphy), info->assoc, info->aid); | |
fc6971d4 JM |
625 | vp->assoc = info->assoc; |
626 | vp->aid = info->aid; | |
fe63bfa3 JM |
627 | } |
628 | ||
57c4d7b4 JB |
629 | if (changed & BSS_CHANGED_BEACON_INT) { |
630 | printk(KERN_DEBUG " %s: BCNINT: %d\n", | |
631 | wiphy_name(hw->wiphy), info->beacon_int); | |
632 | data->beacon_int = 1024 * info->beacon_int / 1000 * HZ / 1000; | |
d91f190c | 633 | if (WARN_ON(!data->beacon_int)) |
57c4d7b4 JB |
634 | data->beacon_int = 1; |
635 | } | |
636 | ||
fe63bfa3 JM |
637 | if (changed & BSS_CHANGED_ERP_CTS_PROT) { |
638 | printk(KERN_DEBUG " %s: ERP_CTS_PROT: %d\n", | |
639 | wiphy_name(hw->wiphy), info->use_cts_prot); | |
640 | } | |
641 | ||
642 | if (changed & BSS_CHANGED_ERP_PREAMBLE) { | |
643 | printk(KERN_DEBUG " %s: ERP_PREAMBLE: %d\n", | |
644 | wiphy_name(hw->wiphy), info->use_short_preamble); | |
645 | } | |
646 | ||
647 | if (changed & BSS_CHANGED_ERP_SLOT) { | |
648 | printk(KERN_DEBUG " %s: ERP_SLOT: %d\n", | |
649 | wiphy_name(hw->wiphy), info->use_short_slot); | |
650 | } | |
651 | ||
652 | if (changed & BSS_CHANGED_HT) { | |
094d05dc | 653 | printk(KERN_DEBUG " %s: HT: op_mode=0x%x\n", |
fe63bfa3 | 654 | wiphy_name(hw->wiphy), |
9ed6bcce | 655 | info->ht_operation_mode); |
fe63bfa3 JM |
656 | } |
657 | ||
658 | if (changed & BSS_CHANGED_BASIC_RATES) { | |
659 | printk(KERN_DEBUG " %s: BASIC_RATES: 0x%llx\n", | |
660 | wiphy_name(hw->wiphy), | |
661 | (unsigned long long) info->basic_rates); | |
662 | } | |
8aa21e6f JB |
663 | } |
664 | ||
665 | static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw, | |
666 | struct ieee80211_vif *vif, | |
17741cdc JB |
667 | enum sta_notify_cmd cmd, |
668 | struct ieee80211_sta *sta) | |
8aa21e6f JB |
669 | { |
670 | hwsim_check_magic(vif); | |
81c06523 JB |
671 | switch (cmd) { |
672 | case STA_NOTIFY_ADD: | |
673 | hwsim_set_sta_magic(sta); | |
674 | break; | |
675 | case STA_NOTIFY_REMOVE: | |
676 | hwsim_clear_sta_magic(sta); | |
677 | break; | |
89fad578 CL |
678 | case STA_NOTIFY_SLEEP: |
679 | case STA_NOTIFY_AWAKE: | |
680 | /* TODO: make good use of these flags */ | |
681 | break; | |
81c06523 JB |
682 | } |
683 | } | |
684 | ||
685 | static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw, | |
686 | struct ieee80211_sta *sta, | |
687 | bool set) | |
688 | { | |
689 | hwsim_check_sta_magic(sta); | |
690 | return 0; | |
8aa21e6f | 691 | } |
acc1e7a3 | 692 | |
1e898ff8 JM |
693 | static int mac80211_hwsim_conf_tx( |
694 | struct ieee80211_hw *hw, u16 queue, | |
695 | const struct ieee80211_tx_queue_params *params) | |
696 | { | |
697 | printk(KERN_DEBUG "%s:%s (queue=%d txop=%d cw_min=%d cw_max=%d " | |
698 | "aifs=%d)\n", | |
699 | wiphy_name(hw->wiphy), __func__, queue, | |
700 | params->txop, params->cw_min, params->cw_max, params->aifs); | |
701 | return 0; | |
702 | } | |
703 | ||
aff89a9b JB |
704 | #ifdef CONFIG_NL80211_TESTMODE |
705 | /* | |
706 | * This section contains example code for using netlink | |
707 | * attributes with the testmode command in nl80211. | |
708 | */ | |
709 | ||
710 | /* These enums need to be kept in sync with userspace */ | |
711 | enum hwsim_testmode_attr { | |
712 | __HWSIM_TM_ATTR_INVALID = 0, | |
713 | HWSIM_TM_ATTR_CMD = 1, | |
714 | HWSIM_TM_ATTR_PS = 2, | |
715 | ||
716 | /* keep last */ | |
717 | __HWSIM_TM_ATTR_AFTER_LAST, | |
718 | HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1 | |
719 | }; | |
720 | ||
721 | enum hwsim_testmode_cmd { | |
722 | HWSIM_TM_CMD_SET_PS = 0, | |
723 | HWSIM_TM_CMD_GET_PS = 1, | |
724 | }; | |
725 | ||
726 | static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = { | |
727 | [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 }, | |
728 | [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 }, | |
729 | }; | |
730 | ||
731 | static int hwsim_fops_ps_write(void *dat, u64 val); | |
732 | ||
5bc38193 JB |
733 | static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw, |
734 | void *data, int len) | |
aff89a9b JB |
735 | { |
736 | struct mac80211_hwsim_data *hwsim = hw->priv; | |
737 | struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1]; | |
738 | struct sk_buff *skb; | |
739 | int err, ps; | |
740 | ||
741 | err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len, | |
742 | hwsim_testmode_policy); | |
743 | if (err) | |
744 | return err; | |
745 | ||
746 | if (!tb[HWSIM_TM_ATTR_CMD]) | |
747 | return -EINVAL; | |
748 | ||
749 | switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) { | |
750 | case HWSIM_TM_CMD_SET_PS: | |
751 | if (!tb[HWSIM_TM_ATTR_PS]) | |
752 | return -EINVAL; | |
753 | ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]); | |
754 | return hwsim_fops_ps_write(hwsim, ps); | |
755 | case HWSIM_TM_CMD_GET_PS: | |
756 | skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, | |
757 | nla_total_size(sizeof(u32))); | |
758 | if (!skb) | |
759 | return -ENOMEM; | |
760 | NLA_PUT_U32(skb, HWSIM_TM_ATTR_PS, hwsim->ps); | |
761 | return cfg80211_testmode_reply(skb); | |
762 | default: | |
763 | return -EOPNOTSUPP; | |
764 | } | |
765 | ||
766 | nla_put_failure: | |
767 | kfree_skb(skb); | |
768 | return -ENOBUFS; | |
769 | } | |
770 | #endif | |
771 | ||
acc1e7a3 JM |
772 | static const struct ieee80211_ops mac80211_hwsim_ops = |
773 | { | |
774 | .tx = mac80211_hwsim_tx, | |
775 | .start = mac80211_hwsim_start, | |
776 | .stop = mac80211_hwsim_stop, | |
777 | .add_interface = mac80211_hwsim_add_interface, | |
778 | .remove_interface = mac80211_hwsim_remove_interface, | |
779 | .config = mac80211_hwsim_config, | |
780 | .configure_filter = mac80211_hwsim_configure_filter, | |
8aa21e6f JB |
781 | .bss_info_changed = mac80211_hwsim_bss_info_changed, |
782 | .sta_notify = mac80211_hwsim_sta_notify, | |
81c06523 | 783 | .set_tim = mac80211_hwsim_set_tim, |
1e898ff8 | 784 | .conf_tx = mac80211_hwsim_conf_tx, |
aff89a9b | 785 | CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd) |
acc1e7a3 JM |
786 | }; |
787 | ||
788 | ||
789 | static void mac80211_hwsim_free(void) | |
790 | { | |
0e057d73 | 791 | struct list_head tmplist, *i, *tmp; |
e603d9d8 | 792 | struct mac80211_hwsim_data *data, *tmpdata; |
0e057d73 JB |
793 | |
794 | INIT_LIST_HEAD(&tmplist); | |
795 | ||
796 | spin_lock_bh(&hwsim_radio_lock); | |
797 | list_for_each_safe(i, tmp, &hwsim_radios) | |
798 | list_move(i, &tmplist); | |
799 | spin_unlock_bh(&hwsim_radio_lock); | |
800 | ||
e603d9d8 | 801 | list_for_each_entry_safe(data, tmpdata, &tmplist, list) { |
73606d00 | 802 | debugfs_remove(data->debugfs_group); |
fc6971d4 JM |
803 | debugfs_remove(data->debugfs_ps); |
804 | debugfs_remove(data->debugfs); | |
0e057d73 JB |
805 | ieee80211_unregister_hw(data->hw); |
806 | device_unregister(data->dev); | |
807 | ieee80211_free_hw(data->hw); | |
acc1e7a3 | 808 | } |
acc1e7a3 JM |
809 | class_destroy(hwsim_class); |
810 | } | |
811 | ||
812 | ||
813 | static struct device_driver mac80211_hwsim_driver = { | |
814 | .name = "mac80211_hwsim" | |
815 | }; | |
816 | ||
98d2faae SH |
817 | static const struct net_device_ops hwsim_netdev_ops = { |
818 | .ndo_start_xmit = hwsim_mon_xmit, | |
819 | .ndo_change_mtu = eth_change_mtu, | |
820 | .ndo_set_mac_address = eth_mac_addr, | |
821 | .ndo_validate_addr = eth_validate_addr, | |
822 | }; | |
acc1e7a3 JM |
823 | |
824 | static void hwsim_mon_setup(struct net_device *dev) | |
825 | { | |
98d2faae | 826 | dev->netdev_ops = &hwsim_netdev_ops; |
acc1e7a3 JM |
827 | dev->destructor = free_netdev; |
828 | ether_setup(dev); | |
829 | dev->tx_queue_len = 0; | |
830 | dev->type = ARPHRD_IEEE80211_RADIOTAP; | |
831 | memset(dev->dev_addr, 0, ETH_ALEN); | |
832 | dev->dev_addr[0] = 0x12; | |
833 | } | |
834 | ||
835 | ||
fc6971d4 JM |
836 | static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif) |
837 | { | |
838 | struct mac80211_hwsim_data *data = dat; | |
839 | struct hwsim_vif_priv *vp = (void *)vif->drv_priv; | |
fc6971d4 JM |
840 | struct sk_buff *skb; |
841 | struct ieee80211_pspoll *pspoll; | |
842 | ||
843 | if (!vp->assoc) | |
844 | return; | |
845 | ||
b235507c JL |
846 | printk(KERN_DEBUG "%s:%s: send PS-Poll to %pM for aid %d\n", |
847 | wiphy_name(data->hw->wiphy), __func__, vp->bssid, vp->aid); | |
fc6971d4 JM |
848 | |
849 | skb = dev_alloc_skb(sizeof(*pspoll)); | |
850 | if (!skb) | |
851 | return; | |
852 | pspoll = (void *) skb_put(skb, sizeof(*pspoll)); | |
853 | pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL | | |
854 | IEEE80211_STYPE_PSPOLL | | |
855 | IEEE80211_FCTL_PM); | |
856 | pspoll->aid = cpu_to_le16(0xc000 | vp->aid); | |
857 | memcpy(pspoll->bssid, vp->bssid, ETH_ALEN); | |
858 | memcpy(pspoll->ta, mac, ETH_ALEN); | |
4c4c671a | 859 | if (!mac80211_hwsim_tx_frame(data->hw, skb)) |
fc6971d4 JM |
860 | printk(KERN_DEBUG "%s: PS-Poll frame not ack'ed\n", __func__); |
861 | dev_kfree_skb(skb); | |
862 | } | |
863 | ||
864 | ||
865 | static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac, | |
866 | struct ieee80211_vif *vif, int ps) | |
867 | { | |
868 | struct hwsim_vif_priv *vp = (void *)vif->drv_priv; | |
fc6971d4 JM |
869 | struct sk_buff *skb; |
870 | struct ieee80211_hdr *hdr; | |
871 | ||
872 | if (!vp->assoc) | |
873 | return; | |
874 | ||
b235507c JL |
875 | printk(KERN_DEBUG "%s:%s: send data::nullfunc to %pM ps=%d\n", |
876 | wiphy_name(data->hw->wiphy), __func__, vp->bssid, ps); | |
fc6971d4 JM |
877 | |
878 | skb = dev_alloc_skb(sizeof(*hdr)); | |
879 | if (!skb) | |
880 | return; | |
881 | hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN); | |
882 | hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA | | |
883 | IEEE80211_STYPE_NULLFUNC | | |
884 | (ps ? IEEE80211_FCTL_PM : 0)); | |
885 | hdr->duration_id = cpu_to_le16(0); | |
886 | memcpy(hdr->addr1, vp->bssid, ETH_ALEN); | |
887 | memcpy(hdr->addr2, mac, ETH_ALEN); | |
888 | memcpy(hdr->addr3, vp->bssid, ETH_ALEN); | |
4c4c671a | 889 | if (!mac80211_hwsim_tx_frame(data->hw, skb)) |
fc6971d4 JM |
890 | printk(KERN_DEBUG "%s: nullfunc frame not ack'ed\n", __func__); |
891 | dev_kfree_skb(skb); | |
892 | } | |
893 | ||
894 | ||
895 | static void hwsim_send_nullfunc_ps(void *dat, u8 *mac, | |
896 | struct ieee80211_vif *vif) | |
897 | { | |
898 | struct mac80211_hwsim_data *data = dat; | |
899 | hwsim_send_nullfunc(data, mac, vif, 1); | |
900 | } | |
901 | ||
902 | ||
903 | static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac, | |
904 | struct ieee80211_vif *vif) | |
905 | { | |
906 | struct mac80211_hwsim_data *data = dat; | |
907 | hwsim_send_nullfunc(data, mac, vif, 0); | |
908 | } | |
909 | ||
910 | ||
911 | static int hwsim_fops_ps_read(void *dat, u64 *val) | |
912 | { | |
913 | struct mac80211_hwsim_data *data = dat; | |
914 | *val = data->ps; | |
915 | return 0; | |
916 | } | |
917 | ||
918 | static int hwsim_fops_ps_write(void *dat, u64 val) | |
919 | { | |
920 | struct mac80211_hwsim_data *data = dat; | |
921 | enum ps_mode old_ps; | |
922 | ||
923 | if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL && | |
924 | val != PS_MANUAL_POLL) | |
925 | return -EINVAL; | |
926 | ||
927 | old_ps = data->ps; | |
928 | data->ps = val; | |
929 | ||
930 | if (val == PS_MANUAL_POLL) { | |
931 | ieee80211_iterate_active_interfaces(data->hw, | |
932 | hwsim_send_ps_poll, data); | |
933 | data->ps_poll_pending = true; | |
934 | } else if (old_ps == PS_DISABLED && val != PS_DISABLED) { | |
935 | ieee80211_iterate_active_interfaces(data->hw, | |
936 | hwsim_send_nullfunc_ps, | |
937 | data); | |
938 | } else if (old_ps != PS_DISABLED && val == PS_DISABLED) { | |
939 | ieee80211_iterate_active_interfaces(data->hw, | |
940 | hwsim_send_nullfunc_no_ps, | |
941 | data); | |
942 | } | |
943 | ||
944 | return 0; | |
945 | } | |
946 | ||
947 | DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write, | |
948 | "%llu\n"); | |
949 | ||
950 | ||
73606d00 DW |
951 | static int hwsim_fops_group_read(void *dat, u64 *val) |
952 | { | |
953 | struct mac80211_hwsim_data *data = dat; | |
954 | *val = data->group; | |
955 | return 0; | |
956 | } | |
957 | ||
958 | static int hwsim_fops_group_write(void *dat, u64 val) | |
959 | { | |
960 | struct mac80211_hwsim_data *data = dat; | |
961 | data->group = val; | |
962 | return 0; | |
963 | } | |
964 | ||
965 | DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group, | |
966 | hwsim_fops_group_read, hwsim_fops_group_write, | |
967 | "%llx\n"); | |
968 | ||
acc1e7a3 JM |
969 | static int __init init_mac80211_hwsim(void) |
970 | { | |
971 | int i, err = 0; | |
972 | u8 addr[ETH_ALEN]; | |
973 | struct mac80211_hwsim_data *data; | |
974 | struct ieee80211_hw *hw; | |
22cad735 | 975 | enum ieee80211_band band; |
acc1e7a3 | 976 | |
0e057d73 | 977 | if (radios < 1 || radios > 100) |
acc1e7a3 JM |
978 | return -EINVAL; |
979 | ||
0e057d73 JB |
980 | spin_lock_init(&hwsim_radio_lock); |
981 | INIT_LIST_HEAD(&hwsim_radios); | |
acc1e7a3 JM |
982 | |
983 | hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim"); | |
0e057d73 | 984 | if (IS_ERR(hwsim_class)) |
acc1e7a3 | 985 | return PTR_ERR(hwsim_class); |
acc1e7a3 JM |
986 | |
987 | memset(addr, 0, ETH_ALEN); | |
988 | addr[0] = 0x02; | |
989 | ||
0e057d73 | 990 | for (i = 0; i < radios; i++) { |
acc1e7a3 JM |
991 | printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n", |
992 | i); | |
993 | hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops); | |
0e057d73 | 994 | if (!hw) { |
acc1e7a3 JM |
995 | printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw " |
996 | "failed\n"); | |
997 | err = -ENOMEM; | |
998 | goto failed; | |
999 | } | |
acc1e7a3 | 1000 | data = hw->priv; |
0e057d73 JB |
1001 | data->hw = hw; |
1002 | ||
6e05d6c4 GKH |
1003 | data->dev = device_create(hwsim_class, NULL, 0, hw, |
1004 | "hwsim%d", i); | |
acc1e7a3 | 1005 | if (IS_ERR(data->dev)) { |
e800f17c | 1006 | printk(KERN_DEBUG |
6e05d6c4 | 1007 | "mac80211_hwsim: device_create " |
acc1e7a3 JM |
1008 | "failed (%ld)\n", PTR_ERR(data->dev)); |
1009 | err = -ENOMEM; | |
3a33cc10 | 1010 | goto failed_drvdata; |
acc1e7a3 JM |
1011 | } |
1012 | data->dev->driver = &mac80211_hwsim_driver; | |
acc1e7a3 JM |
1013 | |
1014 | SET_IEEE80211_DEV(hw, data->dev); | |
1015 | addr[3] = i >> 8; | |
1016 | addr[4] = i; | |
1017 | SET_IEEE80211_PERM_ADDR(hw, addr); | |
1018 | ||
1019 | hw->channel_change_time = 1; | |
87e8b64e | 1020 | hw->queues = 4; |
f59ac048 LR |
1021 | hw->wiphy->interface_modes = |
1022 | BIT(NL80211_IFTYPE_STATION) | | |
55b39619 AY |
1023 | BIT(NL80211_IFTYPE_AP) | |
1024 | BIT(NL80211_IFTYPE_MESH_POINT); | |
acc1e7a3 | 1025 | |
4b14c96d JB |
1026 | hw->flags = IEEE80211_HW_MFP_CAPABLE | |
1027 | IEEE80211_HW_SIGNAL_DBM; | |
fa77533e | 1028 | |
8aa21e6f JB |
1029 | /* ask mac80211 to reserve space for magic */ |
1030 | hw->vif_data_size = sizeof(struct hwsim_vif_priv); | |
81c06523 | 1031 | hw->sta_data_size = sizeof(struct hwsim_sta_priv); |
8aa21e6f | 1032 | |
22cad735 LR |
1033 | memcpy(data->channels_2ghz, hwsim_channels_2ghz, |
1034 | sizeof(hwsim_channels_2ghz)); | |
1035 | memcpy(data->channels_5ghz, hwsim_channels_5ghz, | |
1036 | sizeof(hwsim_channels_5ghz)); | |
acc1e7a3 | 1037 | memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates)); |
22cad735 LR |
1038 | |
1039 | for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) { | |
1040 | struct ieee80211_supported_band *sband = &data->bands[band]; | |
1041 | switch (band) { | |
1042 | case IEEE80211_BAND_2GHZ: | |
1043 | sband->channels = data->channels_2ghz; | |
1044 | sband->n_channels = | |
1045 | ARRAY_SIZE(hwsim_channels_2ghz); | |
1046 | break; | |
1047 | case IEEE80211_BAND_5GHZ: | |
1048 | sband->channels = data->channels_5ghz; | |
1049 | sband->n_channels = | |
1050 | ARRAY_SIZE(hwsim_channels_5ghz); | |
1051 | break; | |
1052 | default: | |
1053 | break; | |
1054 | } | |
1055 | ||
1056 | sband->bitrates = data->rates; | |
1057 | sband->n_bitrates = ARRAY_SIZE(hwsim_rates); | |
1058 | ||
1059 | sband->ht_cap.ht_supported = true; | |
1060 | sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 | | |
1061 | IEEE80211_HT_CAP_GRN_FLD | | |
1062 | IEEE80211_HT_CAP_SGI_40 | | |
1063 | IEEE80211_HT_CAP_DSSSCCK40; | |
1064 | sband->ht_cap.ampdu_factor = 0x3; | |
1065 | sband->ht_cap.ampdu_density = 0x6; | |
1066 | memset(&sband->ht_cap.mcs, 0, | |
1067 | sizeof(sband->ht_cap.mcs)); | |
1068 | sband->ht_cap.mcs.rx_mask[0] = 0xff; | |
1069 | sband->ht_cap.mcs.rx_mask[1] = 0xff; | |
1070 | sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; | |
1071 | ||
1072 | hw->wiphy->bands[band] = sband; | |
1073 | } | |
73606d00 DW |
1074 | /* By default all radios are belonging to the first group */ |
1075 | data->group = 1; | |
acc1e7a3 | 1076 | |
4a5af9c2 LR |
1077 | /* Work to be done prior to ieee80211_register_hw() */ |
1078 | switch (regtest) { | |
1079 | case HWSIM_REGTEST_DISABLED: | |
1080 | case HWSIM_REGTEST_DRIVER_REG_FOLLOW: | |
1081 | case HWSIM_REGTEST_DRIVER_REG_ALL: | |
1082 | case HWSIM_REGTEST_DIFF_COUNTRY: | |
1083 | /* | |
1084 | * Nothing to be done for driver regulatory domain | |
1085 | * hints prior to ieee80211_register_hw() | |
1086 | */ | |
1087 | break; | |
1088 | case HWSIM_REGTEST_WORLD_ROAM: | |
1089 | if (i == 0) { | |
1090 | hw->wiphy->custom_regulatory = true; | |
1091 | wiphy_apply_custom_regulatory(hw->wiphy, | |
1092 | &hwsim_world_regdom_custom_01); | |
1093 | } | |
1094 | break; | |
1095 | case HWSIM_REGTEST_CUSTOM_WORLD: | |
1096 | hw->wiphy->custom_regulatory = true; | |
1097 | wiphy_apply_custom_regulatory(hw->wiphy, | |
1098 | &hwsim_world_regdom_custom_01); | |
1099 | break; | |
1100 | case HWSIM_REGTEST_CUSTOM_WORLD_2: | |
1101 | if (i == 0) { | |
1102 | hw->wiphy->custom_regulatory = true; | |
1103 | wiphy_apply_custom_regulatory(hw->wiphy, | |
1104 | &hwsim_world_regdom_custom_01); | |
1105 | } else if (i == 1) { | |
1106 | hw->wiphy->custom_regulatory = true; | |
1107 | wiphy_apply_custom_regulatory(hw->wiphy, | |
1108 | &hwsim_world_regdom_custom_02); | |
1109 | } | |
1110 | break; | |
1111 | case HWSIM_REGTEST_STRICT_ALL: | |
1112 | hw->wiphy->strict_regulatory = true; | |
1113 | break; | |
1114 | case HWSIM_REGTEST_STRICT_FOLLOW: | |
1115 | case HWSIM_REGTEST_STRICT_AND_DRIVER_REG: | |
1116 | if (i == 0) | |
1117 | hw->wiphy->strict_regulatory = true; | |
1118 | break; | |
1119 | case HWSIM_REGTEST_ALL: | |
1120 | if (i == 0) { | |
1121 | hw->wiphy->custom_regulatory = true; | |
1122 | wiphy_apply_custom_regulatory(hw->wiphy, | |
1123 | &hwsim_world_regdom_custom_01); | |
1124 | } else if (i == 1) { | |
1125 | hw->wiphy->custom_regulatory = true; | |
1126 | wiphy_apply_custom_regulatory(hw->wiphy, | |
1127 | &hwsim_world_regdom_custom_02); | |
1128 | } else if (i == 4) | |
1129 | hw->wiphy->strict_regulatory = true; | |
1130 | break; | |
1131 | default: | |
1132 | break; | |
1133 | } | |
1134 | ||
98dfaa57 LR |
1135 | /* give the regulatory workqueue a chance to run */ |
1136 | if (regtest) | |
1137 | schedule_timeout_interruptible(1); | |
acc1e7a3 JM |
1138 | err = ieee80211_register_hw(hw); |
1139 | if (err < 0) { | |
1140 | printk(KERN_DEBUG "mac80211_hwsim: " | |
1141 | "ieee80211_register_hw failed (%d)\n", err); | |
3a33cc10 | 1142 | goto failed_hw; |
acc1e7a3 JM |
1143 | } |
1144 | ||
4a5af9c2 LR |
1145 | /* Work to be done after to ieee80211_register_hw() */ |
1146 | switch (regtest) { | |
1147 | case HWSIM_REGTEST_WORLD_ROAM: | |
1148 | case HWSIM_REGTEST_DISABLED: | |
1149 | break; | |
1150 | case HWSIM_REGTEST_DRIVER_REG_FOLLOW: | |
1151 | if (!i) | |
1152 | regulatory_hint(hw->wiphy, hwsim_alpha2s[0]); | |
1153 | break; | |
1154 | case HWSIM_REGTEST_DRIVER_REG_ALL: | |
1155 | case HWSIM_REGTEST_STRICT_ALL: | |
1156 | regulatory_hint(hw->wiphy, hwsim_alpha2s[0]); | |
1157 | break; | |
1158 | case HWSIM_REGTEST_DIFF_COUNTRY: | |
1159 | if (i < ARRAY_SIZE(hwsim_alpha2s)) | |
1160 | regulatory_hint(hw->wiphy, hwsim_alpha2s[i]); | |
1161 | break; | |
1162 | case HWSIM_REGTEST_CUSTOM_WORLD: | |
1163 | case HWSIM_REGTEST_CUSTOM_WORLD_2: | |
1164 | /* | |
1165 | * Nothing to be done for custom world regulatory | |
1166 | * domains after to ieee80211_register_hw | |
1167 | */ | |
1168 | break; | |
1169 | case HWSIM_REGTEST_STRICT_FOLLOW: | |
1170 | if (i == 0) | |
1171 | regulatory_hint(hw->wiphy, hwsim_alpha2s[0]); | |
1172 | break; | |
1173 | case HWSIM_REGTEST_STRICT_AND_DRIVER_REG: | |
1174 | if (i == 0) | |
1175 | regulatory_hint(hw->wiphy, hwsim_alpha2s[0]); | |
1176 | else if (i == 1) | |
1177 | regulatory_hint(hw->wiphy, hwsim_alpha2s[1]); | |
1178 | break; | |
1179 | case HWSIM_REGTEST_ALL: | |
1180 | if (i == 2) | |
1181 | regulatory_hint(hw->wiphy, hwsim_alpha2s[0]); | |
1182 | else if (i == 3) | |
1183 | regulatory_hint(hw->wiphy, hwsim_alpha2s[1]); | |
1184 | else if (i == 4) | |
1185 | regulatory_hint(hw->wiphy, hwsim_alpha2s[2]); | |
1186 | break; | |
1187 | default: | |
1188 | break; | |
1189 | } | |
1190 | ||
e174961c | 1191 | printk(KERN_DEBUG "%s: hwaddr %pM registered\n", |
acc1e7a3 | 1192 | wiphy_name(hw->wiphy), |
e174961c | 1193 | hw->wiphy->perm_addr); |
acc1e7a3 | 1194 | |
fc6971d4 JM |
1195 | data->debugfs = debugfs_create_dir("hwsim", |
1196 | hw->wiphy->debugfsdir); | |
1197 | data->debugfs_ps = debugfs_create_file("ps", 0666, | |
1198 | data->debugfs, data, | |
1199 | &hwsim_fops_ps); | |
73606d00 DW |
1200 | data->debugfs_group = debugfs_create_file("group", 0666, |
1201 | data->debugfs, data, | |
1202 | &hwsim_fops_group); | |
fc6971d4 | 1203 | |
acc1e7a3 JM |
1204 | setup_timer(&data->beacon_timer, mac80211_hwsim_beacon, |
1205 | (unsigned long) hw); | |
0e057d73 JB |
1206 | |
1207 | list_add_tail(&data->list, &hwsim_radios); | |
acc1e7a3 JM |
1208 | } |
1209 | ||
1210 | hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup); | |
1211 | if (hwsim_mon == NULL) | |
1212 | goto failed; | |
1213 | ||
1214 | rtnl_lock(); | |
1215 | ||
1216 | err = dev_alloc_name(hwsim_mon, hwsim_mon->name); | |
3a33cc10 | 1217 | if (err < 0) |
acc1e7a3 | 1218 | goto failed_mon; |
3a33cc10 | 1219 | |
acc1e7a3 JM |
1220 | |
1221 | err = register_netdevice(hwsim_mon); | |
1222 | if (err < 0) | |
1223 | goto failed_mon; | |
1224 | ||
1225 | rtnl_unlock(); | |
1226 | ||
1227 | return 0; | |
1228 | ||
1229 | failed_mon: | |
1230 | rtnl_unlock(); | |
1231 | free_netdev(hwsim_mon); | |
3a33cc10 IS |
1232 | mac80211_hwsim_free(); |
1233 | return err; | |
acc1e7a3 | 1234 | |
3a33cc10 IS |
1235 | failed_hw: |
1236 | device_unregister(data->dev); | |
1237 | failed_drvdata: | |
1238 | ieee80211_free_hw(hw); | |
acc1e7a3 JM |
1239 | failed: |
1240 | mac80211_hwsim_free(); | |
1241 | return err; | |
1242 | } | |
1243 | ||
1244 | ||
1245 | static void __exit exit_mac80211_hwsim(void) | |
1246 | { | |
0e057d73 | 1247 | printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n"); |
acc1e7a3 | 1248 | |
acc1e7a3 | 1249 | mac80211_hwsim_free(); |
5d416351 | 1250 | unregister_netdev(hwsim_mon); |
acc1e7a3 JM |
1251 | } |
1252 | ||
1253 | ||
1254 | module_init(init_mac80211_hwsim); | |
1255 | module_exit(exit_mac80211_hwsim); |