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") | |
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; | |
70541839 | 287 | bool started, idle; |
acc1e7a3 | 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 | ||
d0cf9c0d SH |
315 | static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb, |
316 | struct net_device *dev) | |
acc1e7a3 JM |
317 | { |
318 | /* TODO: allow packet injection */ | |
319 | dev_kfree_skb(skb); | |
6ed10654 | 320 | return NETDEV_TX_OK; |
acc1e7a3 JM |
321 | } |
322 | ||
323 | ||
324 | static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw, | |
325 | struct sk_buff *tx_skb) | |
326 | { | |
327 | struct mac80211_hwsim_data *data = hw->priv; | |
328 | struct sk_buff *skb; | |
329 | struct hwsim_radiotap_hdr *hdr; | |
330 | u16 flags; | |
331 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb); | |
332 | struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info); | |
333 | ||
334 | if (!netif_running(hwsim_mon)) | |
335 | return; | |
336 | ||
337 | skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC); | |
338 | if (skb == NULL) | |
339 | return; | |
340 | ||
341 | hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr)); | |
342 | hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION; | |
343 | hdr->hdr.it_pad = 0; | |
344 | hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr)); | |
f248f105 JM |
345 | hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) | |
346 | (1 << IEEE80211_RADIOTAP_RATE) | | |
347 | (1 << IEEE80211_RADIOTAP_CHANNEL)); | |
acc1e7a3 JM |
348 | hdr->rt_flags = 0; |
349 | hdr->rt_rate = txrate->bitrate / 5; | |
df70b4ac | 350 | hdr->rt_channel = cpu_to_le16(data->channel->center_freq); |
acc1e7a3 JM |
351 | flags = IEEE80211_CHAN_2GHZ; |
352 | if (txrate->flags & IEEE80211_RATE_ERP_G) | |
353 | flags |= IEEE80211_CHAN_OFDM; | |
354 | else | |
355 | flags |= IEEE80211_CHAN_CCK; | |
356 | hdr->rt_chbitmask = cpu_to_le16(flags); | |
357 | ||
358 | skb->dev = hwsim_mon; | |
359 | skb_set_mac_header(skb, 0); | |
360 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
361 | skb->pkt_type = PACKET_OTHERHOST; | |
f248f105 | 362 | skb->protocol = htons(ETH_P_802_2); |
acc1e7a3 JM |
363 | memset(skb->cb, 0, sizeof(skb->cb)); |
364 | netif_rx(skb); | |
365 | } | |
366 | ||
367 | ||
6c085227 JM |
368 | static void mac80211_hwsim_monitor_ack(struct ieee80211_hw *hw, const u8 *addr) |
369 | { | |
370 | struct mac80211_hwsim_data *data = hw->priv; | |
371 | struct sk_buff *skb; | |
372 | struct hwsim_radiotap_hdr *hdr; | |
373 | u16 flags; | |
374 | struct ieee80211_hdr *hdr11; | |
375 | ||
376 | if (!netif_running(hwsim_mon)) | |
377 | return; | |
378 | ||
379 | skb = dev_alloc_skb(100); | |
380 | if (skb == NULL) | |
381 | return; | |
382 | ||
383 | hdr = (struct hwsim_radiotap_hdr *) skb_put(skb, sizeof(*hdr)); | |
384 | hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION; | |
385 | hdr->hdr.it_pad = 0; | |
386 | hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr)); | |
387 | hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) | | |
388 | (1 << IEEE80211_RADIOTAP_CHANNEL)); | |
389 | hdr->rt_flags = 0; | |
390 | hdr->rt_rate = 0; | |
391 | hdr->rt_channel = cpu_to_le16(data->channel->center_freq); | |
392 | flags = IEEE80211_CHAN_2GHZ; | |
393 | hdr->rt_chbitmask = cpu_to_le16(flags); | |
394 | ||
395 | hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10); | |
396 | hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL | | |
397 | IEEE80211_STYPE_ACK); | |
398 | hdr11->duration_id = cpu_to_le16(0); | |
399 | memcpy(hdr11->addr1, addr, ETH_ALEN); | |
400 | ||
401 | skb->dev = hwsim_mon; | |
402 | skb_set_mac_header(skb, 0); | |
403 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
404 | skb->pkt_type = PACKET_OTHERHOST; | |
405 | skb->protocol = htons(ETH_P_802_2); | |
406 | memset(skb->cb, 0, sizeof(skb->cb)); | |
407 | netif_rx(skb); | |
408 | } | |
409 | ||
410 | ||
fc6971d4 JM |
411 | static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data, |
412 | struct sk_buff *skb) | |
413 | { | |
414 | switch (data->ps) { | |
415 | case PS_DISABLED: | |
416 | return true; | |
417 | case PS_ENABLED: | |
418 | return false; | |
419 | case PS_AUTO_POLL: | |
420 | /* TODO: accept (some) Beacons by default and other frames only | |
421 | * if pending PS-Poll has been sent */ | |
422 | return true; | |
423 | case PS_MANUAL_POLL: | |
424 | /* Allow unicast frames to own address if there is a pending | |
425 | * PS-Poll */ | |
426 | if (data->ps_poll_pending && | |
427 | memcmp(data->hw->wiphy->perm_addr, skb->data + 4, | |
428 | ETH_ALEN) == 0) { | |
429 | data->ps_poll_pending = false; | |
430 | return true; | |
431 | } | |
432 | return false; | |
433 | } | |
434 | ||
435 | return true; | |
436 | } | |
437 | ||
438 | ||
0e057d73 JB |
439 | static bool mac80211_hwsim_tx_frame(struct ieee80211_hw *hw, |
440 | struct sk_buff *skb) | |
acc1e7a3 | 441 | { |
0e057d73 JB |
442 | struct mac80211_hwsim_data *data = hw->priv, *data2; |
443 | bool ack = false; | |
e36cfdc9 | 444 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; |
acc1e7a3 | 445 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
e36cfdc9 | 446 | struct ieee80211_rx_status rx_status; |
acc1e7a3 | 447 | |
70541839 JM |
448 | if (data->idle) { |
449 | printk(KERN_DEBUG "%s: Trying to TX when idle - reject\n", | |
450 | wiphy_name(hw->wiphy)); | |
451 | return false; | |
452 | } | |
453 | ||
acc1e7a3 JM |
454 | memset(&rx_status, 0, sizeof(rx_status)); |
455 | /* TODO: set mactime */ | |
456 | rx_status.freq = data->channel->center_freq; | |
457 | rx_status.band = data->channel->band; | |
e6a9854b | 458 | rx_status.rate_idx = info->control.rates[0].idx; |
4b14c96d JB |
459 | /* TODO: simulate real signal strength (and optional packet loss) */ |
460 | rx_status.signal = -50; | |
acc1e7a3 | 461 | |
fc6971d4 JM |
462 | if (data->ps != PS_DISABLED) |
463 | hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM); | |
464 | ||
90e3012e JB |
465 | /* release the skb's source info */ |
466 | skb_orphan(skb); | |
c0acf38e | 467 | skb_dst_drop(skb); |
90e3012e JB |
468 | skb->mark = 0; |
469 | secpath_reset(skb); | |
470 | nf_reset(skb); | |
471 | ||
acc1e7a3 | 472 | /* Copy skb to all enabled radios that are on the current frequency */ |
0e057d73 JB |
473 | spin_lock(&hwsim_radio_lock); |
474 | list_for_each_entry(data2, &hwsim_radios, list) { | |
acc1e7a3 JM |
475 | struct sk_buff *nskb; |
476 | ||
0e057d73 | 477 | if (data == data2) |
acc1e7a3 | 478 | continue; |
0e057d73 | 479 | |
70541839 JM |
480 | if (data2->idle || !data2->started || |
481 | !hwsim_ps_rx_ok(data2, skb) || | |
4ff17667 | 482 | !data->channel || !data2->channel || |
73606d00 DW |
483 | data->channel->center_freq != data2->channel->center_freq || |
484 | !(data->group & data2->group)) | |
acc1e7a3 JM |
485 | continue; |
486 | ||
487 | nskb = skb_copy(skb, GFP_ATOMIC); | |
488 | if (nskb == NULL) | |
489 | continue; | |
490 | ||
0e057d73 | 491 | if (memcmp(hdr->addr1, data2->hw->wiphy->perm_addr, |
acc1e7a3 | 492 | ETH_ALEN) == 0) |
0e057d73 | 493 | ack = true; |
f1d58c25 JB |
494 | memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status)); |
495 | ieee80211_rx_irqsafe(data2->hw, nskb); | |
acc1e7a3 | 496 | } |
0e057d73 | 497 | spin_unlock(&hwsim_radio_lock); |
acc1e7a3 | 498 | |
e36cfdc9 JM |
499 | return ack; |
500 | } | |
501 | ||
502 | ||
503 | static int mac80211_hwsim_tx(struct ieee80211_hw *hw, struct sk_buff *skb) | |
504 | { | |
0e057d73 | 505 | bool ack; |
e36cfdc9 JM |
506 | struct ieee80211_tx_info *txi; |
507 | ||
508 | mac80211_hwsim_monitor_rx(hw, skb); | |
509 | ||
510 | if (skb->len < 10) { | |
511 | /* Should not happen; just a sanity check for addr1 use */ | |
512 | dev_kfree_skb(skb); | |
513 | return NETDEV_TX_OK; | |
514 | } | |
515 | ||
e36cfdc9 | 516 | ack = mac80211_hwsim_tx_frame(hw, skb); |
6c085227 JM |
517 | if (ack && skb->len >= 16) { |
518 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; | |
519 | mac80211_hwsim_monitor_ack(hw, hdr->addr2); | |
520 | } | |
e36cfdc9 | 521 | |
acc1e7a3 | 522 | txi = IEEE80211_SKB_CB(skb); |
8aa21e6f | 523 | |
25d834e1 JB |
524 | if (txi->control.vif) |
525 | hwsim_check_magic(txi->control.vif); | |
81c06523 JB |
526 | if (txi->control.sta) |
527 | hwsim_check_sta_magic(txi->control.sta); | |
8aa21e6f | 528 | |
e6a9854b JB |
529 | ieee80211_tx_info_clear_status(txi); |
530 | if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack) | |
531 | txi->flags |= IEEE80211_TX_STAT_ACK; | |
acc1e7a3 JM |
532 | ieee80211_tx_status_irqsafe(hw, skb); |
533 | return NETDEV_TX_OK; | |
534 | } | |
535 | ||
536 | ||
537 | static int mac80211_hwsim_start(struct ieee80211_hw *hw) | |
538 | { | |
539 | struct mac80211_hwsim_data *data = hw->priv; | |
540 | printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__); | |
541 | data->started = 1; | |
542 | return 0; | |
543 | } | |
544 | ||
545 | ||
546 | static void mac80211_hwsim_stop(struct ieee80211_hw *hw) | |
547 | { | |
548 | struct mac80211_hwsim_data *data = hw->priv; | |
549 | data->started = 0; | |
ab1ef980 | 550 | del_timer(&data->beacon_timer); |
acc1e7a3 JM |
551 | printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__); |
552 | } | |
553 | ||
554 | ||
555 | static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw, | |
556 | struct ieee80211_if_init_conf *conf) | |
557 | { | |
e174961c | 558 | printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%pM)\n", |
acc1e7a3 | 559 | wiphy_name(hw->wiphy), __func__, conf->type, |
e174961c | 560 | conf->mac_addr); |
8aa21e6f | 561 | hwsim_set_magic(conf->vif); |
acc1e7a3 JM |
562 | return 0; |
563 | } | |
564 | ||
565 | ||
566 | static void mac80211_hwsim_remove_interface( | |
567 | struct ieee80211_hw *hw, struct ieee80211_if_init_conf *conf) | |
568 | { | |
e174961c | 569 | printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%pM)\n", |
acc1e7a3 | 570 | wiphy_name(hw->wiphy), __func__, conf->type, |
e174961c | 571 | conf->mac_addr); |
8aa21e6f JB |
572 | hwsim_check_magic(conf->vif); |
573 | hwsim_clear_magic(conf->vif); | |
acc1e7a3 JM |
574 | } |
575 | ||
576 | ||
577 | static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac, | |
578 | struct ieee80211_vif *vif) | |
579 | { | |
580 | struct ieee80211_hw *hw = arg; | |
acc1e7a3 | 581 | struct sk_buff *skb; |
acc1e7a3 JM |
582 | struct ieee80211_tx_info *info; |
583 | ||
8aa21e6f JB |
584 | hwsim_check_magic(vif); |
585 | ||
55b39619 AY |
586 | if (vif->type != NL80211_IFTYPE_AP && |
587 | vif->type != NL80211_IFTYPE_MESH_POINT) | |
acc1e7a3 JM |
588 | return; |
589 | ||
590 | skb = ieee80211_beacon_get(hw, vif); | |
591 | if (skb == NULL) | |
592 | return; | |
593 | info = IEEE80211_SKB_CB(skb); | |
594 | ||
595 | mac80211_hwsim_monitor_rx(hw, skb); | |
e36cfdc9 | 596 | mac80211_hwsim_tx_frame(hw, skb); |
acc1e7a3 JM |
597 | dev_kfree_skb(skb); |
598 | } | |
599 | ||
600 | ||
601 | static void mac80211_hwsim_beacon(unsigned long arg) | |
602 | { | |
603 | struct ieee80211_hw *hw = (struct ieee80211_hw *) arg; | |
604 | struct mac80211_hwsim_data *data = hw->priv; | |
605 | ||
4c4c671a | 606 | if (!data->started) |
acc1e7a3 JM |
607 | return; |
608 | ||
f248f105 JM |
609 | ieee80211_iterate_active_interfaces_atomic( |
610 | hw, mac80211_hwsim_beacon_tx, hw); | |
acc1e7a3 JM |
611 | |
612 | data->beacon_timer.expires = jiffies + data->beacon_int; | |
613 | add_timer(&data->beacon_timer); | |
614 | } | |
615 | ||
616 | ||
e8975581 | 617 | static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed) |
acc1e7a3 JM |
618 | { |
619 | struct mac80211_hwsim_data *data = hw->priv; | |
e8975581 | 620 | struct ieee80211_conf *conf = &hw->conf; |
0f78231b JB |
621 | static const char *chantypes[4] = { |
622 | [NL80211_CHAN_NO_HT] = "noht", | |
623 | [NL80211_CHAN_HT20] = "ht20", | |
624 | [NL80211_CHAN_HT40MINUS] = "ht40-", | |
625 | [NL80211_CHAN_HT40PLUS] = "ht40+", | |
626 | }; | |
627 | static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = { | |
628 | [IEEE80211_SMPS_AUTOMATIC] = "auto", | |
629 | [IEEE80211_SMPS_OFF] = "off", | |
630 | [IEEE80211_SMPS_STATIC] = "static", | |
631 | [IEEE80211_SMPS_DYNAMIC] = "dynamic", | |
632 | }; | |
633 | ||
634 | printk(KERN_DEBUG "%s:%s (freq=%d/%s idle=%d ps=%d smps=%s)\n", | |
acc1e7a3 | 635 | wiphy_name(hw->wiphy), __func__, |
4c4c671a | 636 | conf->channel->center_freq, |
0f78231b | 637 | chantypes[conf->channel_type], |
5cff20e6 | 638 | !!(conf->flags & IEEE80211_CONF_IDLE), |
0f78231b JB |
639 | !!(conf->flags & IEEE80211_CONF_PS), |
640 | smps_modes[conf->smps_mode]); | |
acc1e7a3 | 641 | |
70541839 JM |
642 | data->idle = !!(conf->flags & IEEE80211_CONF_IDLE); |
643 | ||
acc1e7a3 | 644 | data->channel = conf->channel; |
4c4c671a | 645 | if (!data->started || !data->beacon_int) |
acc1e7a3 JM |
646 | del_timer(&data->beacon_timer); |
647 | else | |
648 | mod_timer(&data->beacon_timer, jiffies + data->beacon_int); | |
649 | ||
650 | return 0; | |
651 | } | |
652 | ||
653 | ||
654 | static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw, | |
655 | unsigned int changed_flags, | |
3ac64bee | 656 | unsigned int *total_flags,u64 multicast) |
acc1e7a3 JM |
657 | { |
658 | struct mac80211_hwsim_data *data = hw->priv; | |
659 | ||
660 | printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__); | |
661 | ||
662 | data->rx_filter = 0; | |
663 | if (*total_flags & FIF_PROMISC_IN_BSS) | |
664 | data->rx_filter |= FIF_PROMISC_IN_BSS; | |
665 | if (*total_flags & FIF_ALLMULTI) | |
666 | data->rx_filter |= FIF_ALLMULTI; | |
667 | ||
668 | *total_flags = data->rx_filter; | |
669 | } | |
670 | ||
8aa21e6f JB |
671 | static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw, |
672 | struct ieee80211_vif *vif, | |
673 | struct ieee80211_bss_conf *info, | |
674 | u32 changed) | |
675 | { | |
fc6971d4 | 676 | struct hwsim_vif_priv *vp = (void *)vif->drv_priv; |
57c4d7b4 | 677 | struct mac80211_hwsim_data *data = hw->priv; |
fc6971d4 | 678 | |
8aa21e6f | 679 | hwsim_check_magic(vif); |
fe63bfa3 JM |
680 | |
681 | printk(KERN_DEBUG "%s:%s(changed=0x%x)\n", | |
682 | wiphy_name(hw->wiphy), __func__, changed); | |
683 | ||
2d0ddec5 JB |
684 | if (changed & BSS_CHANGED_BSSID) { |
685 | printk(KERN_DEBUG "%s:%s: BSSID changed: %pM\n", | |
686 | wiphy_name(hw->wiphy), __func__, | |
687 | info->bssid); | |
688 | memcpy(vp->bssid, info->bssid, ETH_ALEN); | |
689 | } | |
690 | ||
fe63bfa3 JM |
691 | if (changed & BSS_CHANGED_ASSOC) { |
692 | printk(KERN_DEBUG " %s: ASSOC: assoc=%d aid=%d\n", | |
693 | wiphy_name(hw->wiphy), info->assoc, info->aid); | |
fc6971d4 JM |
694 | vp->assoc = info->assoc; |
695 | vp->aid = info->aid; | |
fe63bfa3 JM |
696 | } |
697 | ||
57c4d7b4 JB |
698 | if (changed & BSS_CHANGED_BEACON_INT) { |
699 | printk(KERN_DEBUG " %s: BCNINT: %d\n", | |
700 | wiphy_name(hw->wiphy), info->beacon_int); | |
701 | data->beacon_int = 1024 * info->beacon_int / 1000 * HZ / 1000; | |
d91f190c | 702 | if (WARN_ON(!data->beacon_int)) |
57c4d7b4 | 703 | data->beacon_int = 1; |
ffed1307 JM |
704 | if (data->started) |
705 | mod_timer(&data->beacon_timer, | |
706 | jiffies + data->beacon_int); | |
57c4d7b4 JB |
707 | } |
708 | ||
fe63bfa3 JM |
709 | if (changed & BSS_CHANGED_ERP_CTS_PROT) { |
710 | printk(KERN_DEBUG " %s: ERP_CTS_PROT: %d\n", | |
711 | wiphy_name(hw->wiphy), info->use_cts_prot); | |
712 | } | |
713 | ||
714 | if (changed & BSS_CHANGED_ERP_PREAMBLE) { | |
715 | printk(KERN_DEBUG " %s: ERP_PREAMBLE: %d\n", | |
716 | wiphy_name(hw->wiphy), info->use_short_preamble); | |
717 | } | |
718 | ||
719 | if (changed & BSS_CHANGED_ERP_SLOT) { | |
720 | printk(KERN_DEBUG " %s: ERP_SLOT: %d\n", | |
721 | wiphy_name(hw->wiphy), info->use_short_slot); | |
722 | } | |
723 | ||
724 | if (changed & BSS_CHANGED_HT) { | |
094d05dc | 725 | printk(KERN_DEBUG " %s: HT: op_mode=0x%x\n", |
fe63bfa3 | 726 | wiphy_name(hw->wiphy), |
9ed6bcce | 727 | info->ht_operation_mode); |
fe63bfa3 JM |
728 | } |
729 | ||
730 | if (changed & BSS_CHANGED_BASIC_RATES) { | |
731 | printk(KERN_DEBUG " %s: BASIC_RATES: 0x%llx\n", | |
732 | wiphy_name(hw->wiphy), | |
733 | (unsigned long long) info->basic_rates); | |
734 | } | |
8aa21e6f JB |
735 | } |
736 | ||
737 | static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw, | |
738 | struct ieee80211_vif *vif, | |
17741cdc JB |
739 | enum sta_notify_cmd cmd, |
740 | struct ieee80211_sta *sta) | |
8aa21e6f JB |
741 | { |
742 | hwsim_check_magic(vif); | |
81c06523 JB |
743 | switch (cmd) { |
744 | case STA_NOTIFY_ADD: | |
745 | hwsim_set_sta_magic(sta); | |
746 | break; | |
747 | case STA_NOTIFY_REMOVE: | |
748 | hwsim_clear_sta_magic(sta); | |
749 | break; | |
89fad578 CL |
750 | case STA_NOTIFY_SLEEP: |
751 | case STA_NOTIFY_AWAKE: | |
752 | /* TODO: make good use of these flags */ | |
753 | break; | |
81c06523 JB |
754 | } |
755 | } | |
756 | ||
757 | static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw, | |
758 | struct ieee80211_sta *sta, | |
759 | bool set) | |
760 | { | |
761 | hwsim_check_sta_magic(sta); | |
762 | return 0; | |
8aa21e6f | 763 | } |
acc1e7a3 | 764 | |
1e898ff8 JM |
765 | static int mac80211_hwsim_conf_tx( |
766 | struct ieee80211_hw *hw, u16 queue, | |
767 | const struct ieee80211_tx_queue_params *params) | |
768 | { | |
769 | printk(KERN_DEBUG "%s:%s (queue=%d txop=%d cw_min=%d cw_max=%d " | |
770 | "aifs=%d)\n", | |
771 | wiphy_name(hw->wiphy), __func__, queue, | |
772 | params->txop, params->cw_min, params->cw_max, params->aifs); | |
773 | return 0; | |
774 | } | |
775 | ||
aff89a9b JB |
776 | #ifdef CONFIG_NL80211_TESTMODE |
777 | /* | |
778 | * This section contains example code for using netlink | |
779 | * attributes with the testmode command in nl80211. | |
780 | */ | |
781 | ||
782 | /* These enums need to be kept in sync with userspace */ | |
783 | enum hwsim_testmode_attr { | |
784 | __HWSIM_TM_ATTR_INVALID = 0, | |
785 | HWSIM_TM_ATTR_CMD = 1, | |
786 | HWSIM_TM_ATTR_PS = 2, | |
787 | ||
788 | /* keep last */ | |
789 | __HWSIM_TM_ATTR_AFTER_LAST, | |
790 | HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1 | |
791 | }; | |
792 | ||
793 | enum hwsim_testmode_cmd { | |
794 | HWSIM_TM_CMD_SET_PS = 0, | |
795 | HWSIM_TM_CMD_GET_PS = 1, | |
796 | }; | |
797 | ||
798 | static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = { | |
799 | [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 }, | |
800 | [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 }, | |
801 | }; | |
802 | ||
803 | static int hwsim_fops_ps_write(void *dat, u64 val); | |
804 | ||
5bc38193 JB |
805 | static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw, |
806 | void *data, int len) | |
aff89a9b JB |
807 | { |
808 | struct mac80211_hwsim_data *hwsim = hw->priv; | |
809 | struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1]; | |
810 | struct sk_buff *skb; | |
811 | int err, ps; | |
812 | ||
813 | err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len, | |
814 | hwsim_testmode_policy); | |
815 | if (err) | |
816 | return err; | |
817 | ||
818 | if (!tb[HWSIM_TM_ATTR_CMD]) | |
819 | return -EINVAL; | |
820 | ||
821 | switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) { | |
822 | case HWSIM_TM_CMD_SET_PS: | |
823 | if (!tb[HWSIM_TM_ATTR_PS]) | |
824 | return -EINVAL; | |
825 | ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]); | |
826 | return hwsim_fops_ps_write(hwsim, ps); | |
827 | case HWSIM_TM_CMD_GET_PS: | |
828 | skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, | |
829 | nla_total_size(sizeof(u32))); | |
830 | if (!skb) | |
831 | return -ENOMEM; | |
832 | NLA_PUT_U32(skb, HWSIM_TM_ATTR_PS, hwsim->ps); | |
833 | return cfg80211_testmode_reply(skb); | |
834 | default: | |
835 | return -EOPNOTSUPP; | |
836 | } | |
837 | ||
838 | nla_put_failure: | |
839 | kfree_skb(skb); | |
840 | return -ENOBUFS; | |
841 | } | |
842 | #endif | |
843 | ||
acc1e7a3 JM |
844 | static const struct ieee80211_ops mac80211_hwsim_ops = |
845 | { | |
846 | .tx = mac80211_hwsim_tx, | |
847 | .start = mac80211_hwsim_start, | |
848 | .stop = mac80211_hwsim_stop, | |
849 | .add_interface = mac80211_hwsim_add_interface, | |
850 | .remove_interface = mac80211_hwsim_remove_interface, | |
851 | .config = mac80211_hwsim_config, | |
852 | .configure_filter = mac80211_hwsim_configure_filter, | |
8aa21e6f JB |
853 | .bss_info_changed = mac80211_hwsim_bss_info_changed, |
854 | .sta_notify = mac80211_hwsim_sta_notify, | |
81c06523 | 855 | .set_tim = mac80211_hwsim_set_tim, |
1e898ff8 | 856 | .conf_tx = mac80211_hwsim_conf_tx, |
aff89a9b | 857 | CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd) |
acc1e7a3 JM |
858 | }; |
859 | ||
860 | ||
861 | static void mac80211_hwsim_free(void) | |
862 | { | |
0e057d73 | 863 | struct list_head tmplist, *i, *tmp; |
e603d9d8 | 864 | struct mac80211_hwsim_data *data, *tmpdata; |
0e057d73 JB |
865 | |
866 | INIT_LIST_HEAD(&tmplist); | |
867 | ||
868 | spin_lock_bh(&hwsim_radio_lock); | |
869 | list_for_each_safe(i, tmp, &hwsim_radios) | |
870 | list_move(i, &tmplist); | |
871 | spin_unlock_bh(&hwsim_radio_lock); | |
872 | ||
e603d9d8 | 873 | list_for_each_entry_safe(data, tmpdata, &tmplist, list) { |
73606d00 | 874 | debugfs_remove(data->debugfs_group); |
fc6971d4 JM |
875 | debugfs_remove(data->debugfs_ps); |
876 | debugfs_remove(data->debugfs); | |
0e057d73 JB |
877 | ieee80211_unregister_hw(data->hw); |
878 | device_unregister(data->dev); | |
879 | ieee80211_free_hw(data->hw); | |
acc1e7a3 | 880 | } |
acc1e7a3 JM |
881 | class_destroy(hwsim_class); |
882 | } | |
883 | ||
884 | ||
885 | static struct device_driver mac80211_hwsim_driver = { | |
886 | .name = "mac80211_hwsim" | |
887 | }; | |
888 | ||
98d2faae SH |
889 | static const struct net_device_ops hwsim_netdev_ops = { |
890 | .ndo_start_xmit = hwsim_mon_xmit, | |
891 | .ndo_change_mtu = eth_change_mtu, | |
892 | .ndo_set_mac_address = eth_mac_addr, | |
893 | .ndo_validate_addr = eth_validate_addr, | |
894 | }; | |
acc1e7a3 JM |
895 | |
896 | static void hwsim_mon_setup(struct net_device *dev) | |
897 | { | |
98d2faae | 898 | dev->netdev_ops = &hwsim_netdev_ops; |
acc1e7a3 JM |
899 | dev->destructor = free_netdev; |
900 | ether_setup(dev); | |
901 | dev->tx_queue_len = 0; | |
902 | dev->type = ARPHRD_IEEE80211_RADIOTAP; | |
903 | memset(dev->dev_addr, 0, ETH_ALEN); | |
904 | dev->dev_addr[0] = 0x12; | |
905 | } | |
906 | ||
907 | ||
fc6971d4 JM |
908 | static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif) |
909 | { | |
910 | struct mac80211_hwsim_data *data = dat; | |
911 | struct hwsim_vif_priv *vp = (void *)vif->drv_priv; | |
fc6971d4 JM |
912 | struct sk_buff *skb; |
913 | struct ieee80211_pspoll *pspoll; | |
914 | ||
915 | if (!vp->assoc) | |
916 | return; | |
917 | ||
b235507c JL |
918 | printk(KERN_DEBUG "%s:%s: send PS-Poll to %pM for aid %d\n", |
919 | wiphy_name(data->hw->wiphy), __func__, vp->bssid, vp->aid); | |
fc6971d4 JM |
920 | |
921 | skb = dev_alloc_skb(sizeof(*pspoll)); | |
922 | if (!skb) | |
923 | return; | |
924 | pspoll = (void *) skb_put(skb, sizeof(*pspoll)); | |
925 | pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL | | |
926 | IEEE80211_STYPE_PSPOLL | | |
927 | IEEE80211_FCTL_PM); | |
928 | pspoll->aid = cpu_to_le16(0xc000 | vp->aid); | |
929 | memcpy(pspoll->bssid, vp->bssid, ETH_ALEN); | |
930 | memcpy(pspoll->ta, mac, ETH_ALEN); | |
4c4c671a | 931 | if (!mac80211_hwsim_tx_frame(data->hw, skb)) |
fc6971d4 JM |
932 | printk(KERN_DEBUG "%s: PS-Poll frame not ack'ed\n", __func__); |
933 | dev_kfree_skb(skb); | |
934 | } | |
935 | ||
936 | ||
937 | static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac, | |
938 | struct ieee80211_vif *vif, int ps) | |
939 | { | |
940 | struct hwsim_vif_priv *vp = (void *)vif->drv_priv; | |
fc6971d4 JM |
941 | struct sk_buff *skb; |
942 | struct ieee80211_hdr *hdr; | |
943 | ||
944 | if (!vp->assoc) | |
945 | return; | |
946 | ||
b235507c JL |
947 | printk(KERN_DEBUG "%s:%s: send data::nullfunc to %pM ps=%d\n", |
948 | wiphy_name(data->hw->wiphy), __func__, vp->bssid, ps); | |
fc6971d4 JM |
949 | |
950 | skb = dev_alloc_skb(sizeof(*hdr)); | |
951 | if (!skb) | |
952 | return; | |
953 | hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN); | |
954 | hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA | | |
955 | IEEE80211_STYPE_NULLFUNC | | |
956 | (ps ? IEEE80211_FCTL_PM : 0)); | |
957 | hdr->duration_id = cpu_to_le16(0); | |
958 | memcpy(hdr->addr1, vp->bssid, ETH_ALEN); | |
959 | memcpy(hdr->addr2, mac, ETH_ALEN); | |
960 | memcpy(hdr->addr3, vp->bssid, ETH_ALEN); | |
4c4c671a | 961 | if (!mac80211_hwsim_tx_frame(data->hw, skb)) |
fc6971d4 JM |
962 | printk(KERN_DEBUG "%s: nullfunc frame not ack'ed\n", __func__); |
963 | dev_kfree_skb(skb); | |
964 | } | |
965 | ||
966 | ||
967 | static void hwsim_send_nullfunc_ps(void *dat, u8 *mac, | |
968 | struct ieee80211_vif *vif) | |
969 | { | |
970 | struct mac80211_hwsim_data *data = dat; | |
971 | hwsim_send_nullfunc(data, mac, vif, 1); | |
972 | } | |
973 | ||
974 | ||
975 | static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac, | |
976 | struct ieee80211_vif *vif) | |
977 | { | |
978 | struct mac80211_hwsim_data *data = dat; | |
979 | hwsim_send_nullfunc(data, mac, vif, 0); | |
980 | } | |
981 | ||
982 | ||
983 | static int hwsim_fops_ps_read(void *dat, u64 *val) | |
984 | { | |
985 | struct mac80211_hwsim_data *data = dat; | |
986 | *val = data->ps; | |
987 | return 0; | |
988 | } | |
989 | ||
990 | static int hwsim_fops_ps_write(void *dat, u64 val) | |
991 | { | |
992 | struct mac80211_hwsim_data *data = dat; | |
993 | enum ps_mode old_ps; | |
994 | ||
995 | if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL && | |
996 | val != PS_MANUAL_POLL) | |
997 | return -EINVAL; | |
998 | ||
999 | old_ps = data->ps; | |
1000 | data->ps = val; | |
1001 | ||
1002 | if (val == PS_MANUAL_POLL) { | |
1003 | ieee80211_iterate_active_interfaces(data->hw, | |
1004 | hwsim_send_ps_poll, data); | |
1005 | data->ps_poll_pending = true; | |
1006 | } else if (old_ps == PS_DISABLED && val != PS_DISABLED) { | |
1007 | ieee80211_iterate_active_interfaces(data->hw, | |
1008 | hwsim_send_nullfunc_ps, | |
1009 | data); | |
1010 | } else if (old_ps != PS_DISABLED && val == PS_DISABLED) { | |
1011 | ieee80211_iterate_active_interfaces(data->hw, | |
1012 | hwsim_send_nullfunc_no_ps, | |
1013 | data); | |
1014 | } | |
1015 | ||
1016 | return 0; | |
1017 | } | |
1018 | ||
1019 | DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write, | |
1020 | "%llu\n"); | |
1021 | ||
1022 | ||
73606d00 DW |
1023 | static int hwsim_fops_group_read(void *dat, u64 *val) |
1024 | { | |
1025 | struct mac80211_hwsim_data *data = dat; | |
1026 | *val = data->group; | |
1027 | return 0; | |
1028 | } | |
1029 | ||
1030 | static int hwsim_fops_group_write(void *dat, u64 val) | |
1031 | { | |
1032 | struct mac80211_hwsim_data *data = dat; | |
1033 | data->group = val; | |
1034 | return 0; | |
1035 | } | |
1036 | ||
1037 | DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group, | |
1038 | hwsim_fops_group_read, hwsim_fops_group_write, | |
1039 | "%llx\n"); | |
1040 | ||
acc1e7a3 JM |
1041 | static int __init init_mac80211_hwsim(void) |
1042 | { | |
1043 | int i, err = 0; | |
1044 | u8 addr[ETH_ALEN]; | |
1045 | struct mac80211_hwsim_data *data; | |
1046 | struct ieee80211_hw *hw; | |
22cad735 | 1047 | enum ieee80211_band band; |
acc1e7a3 | 1048 | |
0e057d73 | 1049 | if (radios < 1 || radios > 100) |
acc1e7a3 JM |
1050 | return -EINVAL; |
1051 | ||
0e057d73 JB |
1052 | spin_lock_init(&hwsim_radio_lock); |
1053 | INIT_LIST_HEAD(&hwsim_radios); | |
acc1e7a3 JM |
1054 | |
1055 | hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim"); | |
0e057d73 | 1056 | if (IS_ERR(hwsim_class)) |
acc1e7a3 | 1057 | return PTR_ERR(hwsim_class); |
acc1e7a3 JM |
1058 | |
1059 | memset(addr, 0, ETH_ALEN); | |
1060 | addr[0] = 0x02; | |
1061 | ||
0e057d73 | 1062 | for (i = 0; i < radios; i++) { |
acc1e7a3 JM |
1063 | printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n", |
1064 | i); | |
1065 | hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops); | |
0e057d73 | 1066 | if (!hw) { |
acc1e7a3 JM |
1067 | printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw " |
1068 | "failed\n"); | |
1069 | err = -ENOMEM; | |
1070 | goto failed; | |
1071 | } | |
acc1e7a3 | 1072 | data = hw->priv; |
0e057d73 JB |
1073 | data->hw = hw; |
1074 | ||
6e05d6c4 GKH |
1075 | data->dev = device_create(hwsim_class, NULL, 0, hw, |
1076 | "hwsim%d", i); | |
acc1e7a3 | 1077 | if (IS_ERR(data->dev)) { |
e800f17c | 1078 | printk(KERN_DEBUG |
6e05d6c4 | 1079 | "mac80211_hwsim: device_create " |
acc1e7a3 JM |
1080 | "failed (%ld)\n", PTR_ERR(data->dev)); |
1081 | err = -ENOMEM; | |
3a33cc10 | 1082 | goto failed_drvdata; |
acc1e7a3 JM |
1083 | } |
1084 | data->dev->driver = &mac80211_hwsim_driver; | |
acc1e7a3 JM |
1085 | |
1086 | SET_IEEE80211_DEV(hw, data->dev); | |
1087 | addr[3] = i >> 8; | |
1088 | addr[4] = i; | |
1089 | SET_IEEE80211_PERM_ADDR(hw, addr); | |
1090 | ||
1091 | hw->channel_change_time = 1; | |
87e8b64e | 1092 | hw->queues = 4; |
f59ac048 LR |
1093 | hw->wiphy->interface_modes = |
1094 | BIT(NL80211_IFTYPE_STATION) | | |
55b39619 AY |
1095 | BIT(NL80211_IFTYPE_AP) | |
1096 | BIT(NL80211_IFTYPE_MESH_POINT); | |
acc1e7a3 | 1097 | |
4b14c96d | 1098 | hw->flags = IEEE80211_HW_MFP_CAPABLE | |
0f78231b JB |
1099 | IEEE80211_HW_SIGNAL_DBM | |
1100 | IEEE80211_HW_SUPPORTS_STATIC_SMPS | | |
1101 | IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS; | |
fa77533e | 1102 | |
8aa21e6f JB |
1103 | /* ask mac80211 to reserve space for magic */ |
1104 | hw->vif_data_size = sizeof(struct hwsim_vif_priv); | |
81c06523 | 1105 | hw->sta_data_size = sizeof(struct hwsim_sta_priv); |
8aa21e6f | 1106 | |
22cad735 LR |
1107 | memcpy(data->channels_2ghz, hwsim_channels_2ghz, |
1108 | sizeof(hwsim_channels_2ghz)); | |
1109 | memcpy(data->channels_5ghz, hwsim_channels_5ghz, | |
1110 | sizeof(hwsim_channels_5ghz)); | |
acc1e7a3 | 1111 | memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates)); |
22cad735 LR |
1112 | |
1113 | for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) { | |
1114 | struct ieee80211_supported_band *sband = &data->bands[band]; | |
1115 | switch (band) { | |
1116 | case IEEE80211_BAND_2GHZ: | |
1117 | sband->channels = data->channels_2ghz; | |
1118 | sband->n_channels = | |
1119 | ARRAY_SIZE(hwsim_channels_2ghz); | |
d130eb49 JB |
1120 | sband->bitrates = data->rates; |
1121 | sband->n_bitrates = ARRAY_SIZE(hwsim_rates); | |
22cad735 LR |
1122 | break; |
1123 | case IEEE80211_BAND_5GHZ: | |
1124 | sband->channels = data->channels_5ghz; | |
1125 | sband->n_channels = | |
1126 | ARRAY_SIZE(hwsim_channels_5ghz); | |
d130eb49 JB |
1127 | sband->bitrates = data->rates + 4; |
1128 | sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4; | |
22cad735 LR |
1129 | break; |
1130 | default: | |
1131 | break; | |
1132 | } | |
1133 | ||
22cad735 LR |
1134 | sband->ht_cap.ht_supported = true; |
1135 | sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 | | |
1136 | IEEE80211_HT_CAP_GRN_FLD | | |
1137 | IEEE80211_HT_CAP_SGI_40 | | |
1138 | IEEE80211_HT_CAP_DSSSCCK40; | |
1139 | sband->ht_cap.ampdu_factor = 0x3; | |
1140 | sband->ht_cap.ampdu_density = 0x6; | |
1141 | memset(&sband->ht_cap.mcs, 0, | |
1142 | sizeof(sband->ht_cap.mcs)); | |
1143 | sband->ht_cap.mcs.rx_mask[0] = 0xff; | |
1144 | sband->ht_cap.mcs.rx_mask[1] = 0xff; | |
1145 | sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; | |
1146 | ||
1147 | hw->wiphy->bands[band] = sband; | |
1148 | } | |
73606d00 DW |
1149 | /* By default all radios are belonging to the first group */ |
1150 | data->group = 1; | |
acc1e7a3 | 1151 | |
4a5af9c2 LR |
1152 | /* Work to be done prior to ieee80211_register_hw() */ |
1153 | switch (regtest) { | |
1154 | case HWSIM_REGTEST_DISABLED: | |
1155 | case HWSIM_REGTEST_DRIVER_REG_FOLLOW: | |
1156 | case HWSIM_REGTEST_DRIVER_REG_ALL: | |
1157 | case HWSIM_REGTEST_DIFF_COUNTRY: | |
1158 | /* | |
1159 | * Nothing to be done for driver regulatory domain | |
1160 | * hints prior to ieee80211_register_hw() | |
1161 | */ | |
1162 | break; | |
1163 | case HWSIM_REGTEST_WORLD_ROAM: | |
1164 | if (i == 0) { | |
5be83de5 | 1165 | hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY; |
4a5af9c2 LR |
1166 | wiphy_apply_custom_regulatory(hw->wiphy, |
1167 | &hwsim_world_regdom_custom_01); | |
1168 | } | |
1169 | break; | |
1170 | case HWSIM_REGTEST_CUSTOM_WORLD: | |
5be83de5 | 1171 | hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY; |
4a5af9c2 LR |
1172 | wiphy_apply_custom_regulatory(hw->wiphy, |
1173 | &hwsim_world_regdom_custom_01); | |
1174 | break; | |
1175 | case HWSIM_REGTEST_CUSTOM_WORLD_2: | |
1176 | if (i == 0) { | |
5be83de5 | 1177 | hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY; |
4a5af9c2 LR |
1178 | wiphy_apply_custom_regulatory(hw->wiphy, |
1179 | &hwsim_world_regdom_custom_01); | |
1180 | } else if (i == 1) { | |
5be83de5 | 1181 | hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY; |
4a5af9c2 LR |
1182 | wiphy_apply_custom_regulatory(hw->wiphy, |
1183 | &hwsim_world_regdom_custom_02); | |
1184 | } | |
1185 | break; | |
1186 | case HWSIM_REGTEST_STRICT_ALL: | |
5be83de5 | 1187 | hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY; |
4a5af9c2 LR |
1188 | break; |
1189 | case HWSIM_REGTEST_STRICT_FOLLOW: | |
1190 | case HWSIM_REGTEST_STRICT_AND_DRIVER_REG: | |
1191 | if (i == 0) | |
5be83de5 | 1192 | hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY; |
4a5af9c2 LR |
1193 | break; |
1194 | case HWSIM_REGTEST_ALL: | |
1195 | if (i == 0) { | |
5be83de5 | 1196 | hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY; |
4a5af9c2 LR |
1197 | wiphy_apply_custom_regulatory(hw->wiphy, |
1198 | &hwsim_world_regdom_custom_01); | |
1199 | } else if (i == 1) { | |
5be83de5 | 1200 | hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY; |
4a5af9c2 LR |
1201 | wiphy_apply_custom_regulatory(hw->wiphy, |
1202 | &hwsim_world_regdom_custom_02); | |
1203 | } else if (i == 4) | |
5be83de5 | 1204 | hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY; |
4a5af9c2 LR |
1205 | break; |
1206 | default: | |
1207 | break; | |
1208 | } | |
1209 | ||
98dfaa57 LR |
1210 | /* give the regulatory workqueue a chance to run */ |
1211 | if (regtest) | |
1212 | schedule_timeout_interruptible(1); | |
acc1e7a3 JM |
1213 | err = ieee80211_register_hw(hw); |
1214 | if (err < 0) { | |
1215 | printk(KERN_DEBUG "mac80211_hwsim: " | |
1216 | "ieee80211_register_hw failed (%d)\n", err); | |
3a33cc10 | 1217 | goto failed_hw; |
acc1e7a3 JM |
1218 | } |
1219 | ||
4a5af9c2 LR |
1220 | /* Work to be done after to ieee80211_register_hw() */ |
1221 | switch (regtest) { | |
1222 | case HWSIM_REGTEST_WORLD_ROAM: | |
1223 | case HWSIM_REGTEST_DISABLED: | |
1224 | break; | |
1225 | case HWSIM_REGTEST_DRIVER_REG_FOLLOW: | |
1226 | if (!i) | |
1227 | regulatory_hint(hw->wiphy, hwsim_alpha2s[0]); | |
1228 | break; | |
1229 | case HWSIM_REGTEST_DRIVER_REG_ALL: | |
1230 | case HWSIM_REGTEST_STRICT_ALL: | |
1231 | regulatory_hint(hw->wiphy, hwsim_alpha2s[0]); | |
1232 | break; | |
1233 | case HWSIM_REGTEST_DIFF_COUNTRY: | |
1234 | if (i < ARRAY_SIZE(hwsim_alpha2s)) | |
1235 | regulatory_hint(hw->wiphy, hwsim_alpha2s[i]); | |
1236 | break; | |
1237 | case HWSIM_REGTEST_CUSTOM_WORLD: | |
1238 | case HWSIM_REGTEST_CUSTOM_WORLD_2: | |
1239 | /* | |
1240 | * Nothing to be done for custom world regulatory | |
1241 | * domains after to ieee80211_register_hw | |
1242 | */ | |
1243 | break; | |
1244 | case HWSIM_REGTEST_STRICT_FOLLOW: | |
1245 | if (i == 0) | |
1246 | regulatory_hint(hw->wiphy, hwsim_alpha2s[0]); | |
1247 | break; | |
1248 | case HWSIM_REGTEST_STRICT_AND_DRIVER_REG: | |
1249 | if (i == 0) | |
1250 | regulatory_hint(hw->wiphy, hwsim_alpha2s[0]); | |
1251 | else if (i == 1) | |
1252 | regulatory_hint(hw->wiphy, hwsim_alpha2s[1]); | |
1253 | break; | |
1254 | case HWSIM_REGTEST_ALL: | |
1255 | if (i == 2) | |
1256 | regulatory_hint(hw->wiphy, hwsim_alpha2s[0]); | |
1257 | else if (i == 3) | |
1258 | regulatory_hint(hw->wiphy, hwsim_alpha2s[1]); | |
1259 | else if (i == 4) | |
1260 | regulatory_hint(hw->wiphy, hwsim_alpha2s[2]); | |
1261 | break; | |
1262 | default: | |
1263 | break; | |
1264 | } | |
1265 | ||
e174961c | 1266 | printk(KERN_DEBUG "%s: hwaddr %pM registered\n", |
acc1e7a3 | 1267 | wiphy_name(hw->wiphy), |
e174961c | 1268 | hw->wiphy->perm_addr); |
acc1e7a3 | 1269 | |
fc6971d4 JM |
1270 | data->debugfs = debugfs_create_dir("hwsim", |
1271 | hw->wiphy->debugfsdir); | |
1272 | data->debugfs_ps = debugfs_create_file("ps", 0666, | |
1273 | data->debugfs, data, | |
1274 | &hwsim_fops_ps); | |
73606d00 DW |
1275 | data->debugfs_group = debugfs_create_file("group", 0666, |
1276 | data->debugfs, data, | |
1277 | &hwsim_fops_group); | |
fc6971d4 | 1278 | |
acc1e7a3 JM |
1279 | setup_timer(&data->beacon_timer, mac80211_hwsim_beacon, |
1280 | (unsigned long) hw); | |
0e057d73 JB |
1281 | |
1282 | list_add_tail(&data->list, &hwsim_radios); | |
acc1e7a3 JM |
1283 | } |
1284 | ||
1285 | hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup); | |
1286 | if (hwsim_mon == NULL) | |
1287 | goto failed; | |
1288 | ||
1289 | rtnl_lock(); | |
1290 | ||
1291 | err = dev_alloc_name(hwsim_mon, hwsim_mon->name); | |
3a33cc10 | 1292 | if (err < 0) |
acc1e7a3 | 1293 | goto failed_mon; |
3a33cc10 | 1294 | |
acc1e7a3 JM |
1295 | |
1296 | err = register_netdevice(hwsim_mon); | |
1297 | if (err < 0) | |
1298 | goto failed_mon; | |
1299 | ||
1300 | rtnl_unlock(); | |
1301 | ||
1302 | return 0; | |
1303 | ||
1304 | failed_mon: | |
1305 | rtnl_unlock(); | |
1306 | free_netdev(hwsim_mon); | |
3a33cc10 IS |
1307 | mac80211_hwsim_free(); |
1308 | return err; | |
acc1e7a3 | 1309 | |
3a33cc10 IS |
1310 | failed_hw: |
1311 | device_unregister(data->dev); | |
1312 | failed_drvdata: | |
1313 | ieee80211_free_hw(hw); | |
acc1e7a3 JM |
1314 | failed: |
1315 | mac80211_hwsim_free(); | |
1316 | return err; | |
1317 | } | |
1318 | ||
1319 | ||
1320 | static void __exit exit_mac80211_hwsim(void) | |
1321 | { | |
0e057d73 | 1322 | printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n"); |
acc1e7a3 | 1323 | |
acc1e7a3 | 1324 | mac80211_hwsim_free(); |
5d416351 | 1325 | unregister_netdev(hwsim_mon); |
acc1e7a3 JM |
1326 | } |
1327 | ||
1328 | ||
1329 | module_init(init_mac80211_hwsim); | |
1330 | module_exit(exit_mac80211_hwsim); |