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Commit | Line | Data |
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acc1e7a3 JM |
1 | /* |
2 | * mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211 | |
3 | * Copyright (c) 2008, Jouni Malinen <j@w1.fi> | |
7882513b | 4 | * Copyright (c) 2011, Javier Lopez <jlopex@gmail.com> |
acc1e7a3 JM |
5 | * |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License version 2 as | |
8 | * published by the Free Software Foundation. | |
9 | */ | |
10 | ||
11 | /* | |
12 | * TODO: | |
2b2d7795 JB |
13 | * - Add TSF sync and fix IBSS beacon transmission by adding |
14 | * competition for "air time" at TBTT | |
acc1e7a3 JM |
15 | * - RX filtering based on filter configuration (data->rx_filter) |
16 | */ | |
17 | ||
0e057d73 | 18 | #include <linux/list.h> |
5a0e3ad6 | 19 | #include <linux/slab.h> |
0e057d73 | 20 | #include <linux/spinlock.h> |
90e3012e JB |
21 | #include <net/dst.h> |
22 | #include <net/xfrm.h> | |
acc1e7a3 JM |
23 | #include <net/mac80211.h> |
24 | #include <net/ieee80211_radiotap.h> | |
25 | #include <linux/if_arp.h> | |
26 | #include <linux/rtnetlink.h> | |
27 | #include <linux/etherdevice.h> | |
fc6971d4 | 28 | #include <linux/debugfs.h> |
9d9779e7 | 29 | #include <linux/module.h> |
2f40b940 | 30 | #include <linux/ktime.h> |
7882513b JL |
31 | #include <net/genetlink.h> |
32 | #include "mac80211_hwsim.h" | |
33 | ||
34 | #define WARN_QUEUE 100 | |
35 | #define MAX_QUEUE 200 | |
acc1e7a3 JM |
36 | |
37 | MODULE_AUTHOR("Jouni Malinen"); | |
38 | MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211"); | |
39 | MODULE_LICENSE("GPL"); | |
40 | ||
a1910f9c JB |
41 | static u32 wmediumd_pid; |
42 | ||
acc1e7a3 JM |
43 | static int radios = 2; |
44 | module_param(radios, int, 0444); | |
45 | MODULE_PARM_DESC(radios, "Number of simulated radios"); | |
46 | ||
69068036 JB |
47 | static bool fake_hw_scan; |
48 | module_param(fake_hw_scan, bool, 0444); | |
49 | MODULE_PARM_DESC(fake_hw_scan, "Install fake (no-op) hw-scan handler"); | |
50 | ||
4a5af9c2 LR |
51 | /** |
52 | * enum hwsim_regtest - the type of regulatory tests we offer | |
53 | * | |
54 | * These are the different values you can use for the regtest | |
55 | * module parameter. This is useful to help test world roaming | |
56 | * and the driver regulatory_hint() call and combinations of these. | |
57 | * If you want to do specific alpha2 regulatory domain tests simply | |
58 | * use the userspace regulatory request as that will be respected as | |
59 | * well without the need of this module parameter. This is designed | |
60 | * only for testing the driver regulatory request, world roaming | |
61 | * and all possible combinations. | |
62 | * | |
63 | * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed, | |
64 | * this is the default value. | |
65 | * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory | |
66 | * hint, only one driver regulatory hint will be sent as such the | |
67 | * secondary radios are expected to follow. | |
68 | * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory | |
69 | * request with all radios reporting the same regulatory domain. | |
70 | * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling | |
71 | * different regulatory domains requests. Expected behaviour is for | |
72 | * an intersection to occur but each device will still use their | |
73 | * respective regulatory requested domains. Subsequent radios will | |
74 | * use the resulting intersection. | |
25985edc | 75 | * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We accomplish |
4a5af9c2 LR |
76 | * this by using a custom beacon-capable regulatory domain for the first |
77 | * radio. All other device world roam. | |
78 | * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory | |
79 | * domain requests. All radios will adhere to this custom world regulatory | |
80 | * domain. | |
81 | * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory | |
82 | * domain requests. The first radio will adhere to the first custom world | |
83 | * regulatory domain, the second one to the second custom world regulatory | |
84 | * domain. All other devices will world roam. | |
85 | * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain | |
86 | * settings, only the first radio will send a regulatory domain request | |
87 | * and use strict settings. The rest of the radios are expected to follow. | |
88 | * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain | |
89 | * settings. All radios will adhere to this. | |
90 | * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory | |
91 | * domain settings, combined with secondary driver regulatory domain | |
92 | * settings. The first radio will get a strict regulatory domain setting | |
93 | * using the first driver regulatory request and the second radio will use | |
94 | * non-strict settings using the second driver regulatory request. All | |
95 | * other devices should follow the intersection created between the | |
96 | * first two. | |
97 | * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need | |
98 | * at least 6 radios for a complete test. We will test in this order: | |
99 | * 1 - driver custom world regulatory domain | |
100 | * 2 - second custom world regulatory domain | |
101 | * 3 - first driver regulatory domain request | |
102 | * 4 - second driver regulatory domain request | |
103 | * 5 - strict regulatory domain settings using the third driver regulatory | |
104 | * domain request | |
105 | * 6 and on - should follow the intersection of the 3rd, 4rth and 5th radio | |
106 | * regulatory requests. | |
107 | */ | |
108 | enum hwsim_regtest { | |
109 | HWSIM_REGTEST_DISABLED = 0, | |
110 | HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1, | |
111 | HWSIM_REGTEST_DRIVER_REG_ALL = 2, | |
112 | HWSIM_REGTEST_DIFF_COUNTRY = 3, | |
113 | HWSIM_REGTEST_WORLD_ROAM = 4, | |
114 | HWSIM_REGTEST_CUSTOM_WORLD = 5, | |
115 | HWSIM_REGTEST_CUSTOM_WORLD_2 = 6, | |
116 | HWSIM_REGTEST_STRICT_FOLLOW = 7, | |
117 | HWSIM_REGTEST_STRICT_ALL = 8, | |
118 | HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9, | |
119 | HWSIM_REGTEST_ALL = 10, | |
120 | }; | |
121 | ||
122 | /* Set to one of the HWSIM_REGTEST_* values above */ | |
123 | static int regtest = HWSIM_REGTEST_DISABLED; | |
124 | module_param(regtest, int, 0444); | |
125 | MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run"); | |
126 | ||
127 | static const char *hwsim_alpha2s[] = { | |
128 | "FI", | |
129 | "AL", | |
130 | "US", | |
131 | "DE", | |
132 | "JP", | |
133 | "AL", | |
134 | }; | |
135 | ||
136 | static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = { | |
137 | .n_reg_rules = 4, | |
138 | .alpha2 = "99", | |
139 | .reg_rules = { | |
140 | REG_RULE(2412-10, 2462+10, 40, 0, 20, 0), | |
141 | REG_RULE(2484-10, 2484+10, 40, 0, 20, 0), | |
142 | REG_RULE(5150-10, 5240+10, 40, 0, 30, 0), | |
143 | REG_RULE(5745-10, 5825+10, 40, 0, 30, 0), | |
144 | } | |
145 | }; | |
146 | ||
147 | static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = { | |
148 | .n_reg_rules = 2, | |
149 | .alpha2 = "99", | |
150 | .reg_rules = { | |
151 | REG_RULE(2412-10, 2462+10, 40, 0, 20, 0), | |
152 | REG_RULE(5725-10, 5850+10, 40, 0, 30, | |
153 | NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS), | |
154 | } | |
155 | }; | |
156 | ||
8aa21e6f JB |
157 | struct hwsim_vif_priv { |
158 | u32 magic; | |
fc6971d4 JM |
159 | u8 bssid[ETH_ALEN]; |
160 | bool assoc; | |
161 | u16 aid; | |
8aa21e6f JB |
162 | }; |
163 | ||
164 | #define HWSIM_VIF_MAGIC 0x69537748 | |
165 | ||
166 | static inline void hwsim_check_magic(struct ieee80211_vif *vif) | |
167 | { | |
168 | struct hwsim_vif_priv *vp = (void *)vif->drv_priv; | |
169 | WARN_ON(vp->magic != HWSIM_VIF_MAGIC); | |
170 | } | |
171 | ||
172 | static inline void hwsim_set_magic(struct ieee80211_vif *vif) | |
173 | { | |
174 | struct hwsim_vif_priv *vp = (void *)vif->drv_priv; | |
175 | vp->magic = HWSIM_VIF_MAGIC; | |
176 | } | |
177 | ||
178 | static inline void hwsim_clear_magic(struct ieee80211_vif *vif) | |
179 | { | |
180 | struct hwsim_vif_priv *vp = (void *)vif->drv_priv; | |
181 | vp->magic = 0; | |
182 | } | |
acc1e7a3 | 183 | |
81c06523 JB |
184 | struct hwsim_sta_priv { |
185 | u32 magic; | |
186 | }; | |
187 | ||
188 | #define HWSIM_STA_MAGIC 0x6d537748 | |
189 | ||
190 | static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta) | |
191 | { | |
192 | struct hwsim_sta_priv *sp = (void *)sta->drv_priv; | |
5d6924ea | 193 | WARN_ON(sp->magic != HWSIM_STA_MAGIC); |
81c06523 JB |
194 | } |
195 | ||
196 | static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta) | |
197 | { | |
198 | struct hwsim_sta_priv *sp = (void *)sta->drv_priv; | |
5d6924ea | 199 | sp->magic = HWSIM_STA_MAGIC; |
81c06523 JB |
200 | } |
201 | ||
202 | static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta) | |
203 | { | |
204 | struct hwsim_sta_priv *sp = (void *)sta->drv_priv; | |
205 | sp->magic = 0; | |
206 | } | |
207 | ||
acc1e7a3 JM |
208 | static struct class *hwsim_class; |
209 | ||
acc1e7a3 JM |
210 | static struct net_device *hwsim_mon; /* global monitor netdev */ |
211 | ||
22cad735 LR |
212 | #define CHAN2G(_freq) { \ |
213 | .band = IEEE80211_BAND_2GHZ, \ | |
214 | .center_freq = (_freq), \ | |
215 | .hw_value = (_freq), \ | |
216 | .max_power = 20, \ | |
217 | } | |
218 | ||
219 | #define CHAN5G(_freq) { \ | |
220 | .band = IEEE80211_BAND_5GHZ, \ | |
221 | .center_freq = (_freq), \ | |
222 | .hw_value = (_freq), \ | |
223 | .max_power = 20, \ | |
224 | } | |
225 | ||
226 | static const struct ieee80211_channel hwsim_channels_2ghz[] = { | |
227 | CHAN2G(2412), /* Channel 1 */ | |
228 | CHAN2G(2417), /* Channel 2 */ | |
229 | CHAN2G(2422), /* Channel 3 */ | |
230 | CHAN2G(2427), /* Channel 4 */ | |
231 | CHAN2G(2432), /* Channel 5 */ | |
232 | CHAN2G(2437), /* Channel 6 */ | |
233 | CHAN2G(2442), /* Channel 7 */ | |
234 | CHAN2G(2447), /* Channel 8 */ | |
235 | CHAN2G(2452), /* Channel 9 */ | |
236 | CHAN2G(2457), /* Channel 10 */ | |
237 | CHAN2G(2462), /* Channel 11 */ | |
238 | CHAN2G(2467), /* Channel 12 */ | |
239 | CHAN2G(2472), /* Channel 13 */ | |
240 | CHAN2G(2484), /* Channel 14 */ | |
241 | }; | |
acc1e7a3 | 242 | |
22cad735 LR |
243 | static const struct ieee80211_channel hwsim_channels_5ghz[] = { |
244 | CHAN5G(5180), /* Channel 36 */ | |
245 | CHAN5G(5200), /* Channel 40 */ | |
246 | CHAN5G(5220), /* Channel 44 */ | |
247 | CHAN5G(5240), /* Channel 48 */ | |
248 | ||
249 | CHAN5G(5260), /* Channel 52 */ | |
250 | CHAN5G(5280), /* Channel 56 */ | |
251 | CHAN5G(5300), /* Channel 60 */ | |
252 | CHAN5G(5320), /* Channel 64 */ | |
253 | ||
254 | CHAN5G(5500), /* Channel 100 */ | |
255 | CHAN5G(5520), /* Channel 104 */ | |
256 | CHAN5G(5540), /* Channel 108 */ | |
257 | CHAN5G(5560), /* Channel 112 */ | |
258 | CHAN5G(5580), /* Channel 116 */ | |
259 | CHAN5G(5600), /* Channel 120 */ | |
260 | CHAN5G(5620), /* Channel 124 */ | |
261 | CHAN5G(5640), /* Channel 128 */ | |
262 | CHAN5G(5660), /* Channel 132 */ | |
263 | CHAN5G(5680), /* Channel 136 */ | |
264 | CHAN5G(5700), /* Channel 140 */ | |
265 | ||
266 | CHAN5G(5745), /* Channel 149 */ | |
267 | CHAN5G(5765), /* Channel 153 */ | |
268 | CHAN5G(5785), /* Channel 157 */ | |
269 | CHAN5G(5805), /* Channel 161 */ | |
270 | CHAN5G(5825), /* Channel 165 */ | |
acc1e7a3 JM |
271 | }; |
272 | ||
273 | static const struct ieee80211_rate hwsim_rates[] = { | |
274 | { .bitrate = 10 }, | |
275 | { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
276 | { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
277 | { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
278 | { .bitrate = 60 }, | |
279 | { .bitrate = 90 }, | |
280 | { .bitrate = 120 }, | |
281 | { .bitrate = 180 }, | |
282 | { .bitrate = 240 }, | |
283 | { .bitrate = 360 }, | |
284 | { .bitrate = 480 }, | |
285 | { .bitrate = 540 } | |
286 | }; | |
287 | ||
0e057d73 JB |
288 | static spinlock_t hwsim_radio_lock; |
289 | static struct list_head hwsim_radios; | |
290 | ||
acc1e7a3 | 291 | struct mac80211_hwsim_data { |
0e057d73 JB |
292 | struct list_head list; |
293 | struct ieee80211_hw *hw; | |
acc1e7a3 | 294 | struct device *dev; |
22cad735 LR |
295 | struct ieee80211_supported_band bands[2]; |
296 | struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)]; | |
297 | struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)]; | |
acc1e7a3 JM |
298 | struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)]; |
299 | ||
ef15aac6 JB |
300 | struct mac_address addresses[2]; |
301 | ||
acc1e7a3 | 302 | struct ieee80211_channel *channel; |
acc1e7a3 JM |
303 | unsigned long beacon_int; /* in jiffies unit */ |
304 | unsigned int rx_filter; | |
f74cb0f7 LR |
305 | bool started, idle, scanning; |
306 | struct mutex mutex; | |
acc1e7a3 | 307 | struct timer_list beacon_timer; |
fc6971d4 JM |
308 | enum ps_mode { |
309 | PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL | |
310 | } ps; | |
311 | bool ps_poll_pending; | |
312 | struct dentry *debugfs; | |
313 | struct dentry *debugfs_ps; | |
73606d00 | 314 | |
7882513b | 315 | struct sk_buff_head pending; /* packets pending */ |
73606d00 DW |
316 | /* |
317 | * Only radios in the same group can communicate together (the | |
318 | * channel has to match too). Each bit represents a group. A | |
319 | * radio can be in more then one group. | |
320 | */ | |
321 | u64 group; | |
322 | struct dentry *debugfs_group; | |
bdd7bd16 BG |
323 | |
324 | int power_level; | |
2f40b940 JC |
325 | |
326 | /* difference between this hw's clock and the real clock, in usecs */ | |
327 | u64 tsf_offset; | |
acc1e7a3 JM |
328 | }; |
329 | ||
330 | ||
331 | struct hwsim_radiotap_hdr { | |
332 | struct ieee80211_radiotap_header hdr; | |
2f40b940 | 333 | __le64 rt_tsft; |
acc1e7a3 JM |
334 | u8 rt_flags; |
335 | u8 rt_rate; | |
336 | __le16 rt_channel; | |
337 | __le16 rt_chbitmask; | |
ba2d3587 | 338 | } __packed; |
acc1e7a3 | 339 | |
7882513b JL |
340 | /* MAC80211_HWSIM netlinf family */ |
341 | static struct genl_family hwsim_genl_family = { | |
342 | .id = GENL_ID_GENERATE, | |
343 | .hdrsize = 0, | |
344 | .name = "MAC80211_HWSIM", | |
345 | .version = 1, | |
346 | .maxattr = HWSIM_ATTR_MAX, | |
347 | }; | |
348 | ||
349 | /* MAC80211_HWSIM netlink policy */ | |
350 | ||
351 | static struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = { | |
352 | [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC, | |
353 | .len = 6*sizeof(u8) }, | |
354 | [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC, | |
355 | .len = 6*sizeof(u8) }, | |
356 | [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY, | |
357 | .len = IEEE80211_MAX_DATA_LEN }, | |
358 | [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 }, | |
359 | [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 }, | |
360 | [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 }, | |
361 | [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC, | |
362 | .len = IEEE80211_TX_MAX_RATES*sizeof( | |
363 | struct hwsim_tx_rate)}, | |
364 | [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 }, | |
365 | }; | |
acc1e7a3 | 366 | |
d0cf9c0d SH |
367 | static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb, |
368 | struct net_device *dev) | |
acc1e7a3 JM |
369 | { |
370 | /* TODO: allow packet injection */ | |
371 | dev_kfree_skb(skb); | |
6ed10654 | 372 | return NETDEV_TX_OK; |
acc1e7a3 JM |
373 | } |
374 | ||
2f40b940 JC |
375 | static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data) |
376 | { | |
377 | struct timeval tv = ktime_to_timeval(ktime_get_real()); | |
378 | u64 now = tv.tv_sec * USEC_PER_SEC + tv.tv_usec; | |
379 | return cpu_to_le64(now + data->tsf_offset); | |
380 | } | |
acc1e7a3 | 381 | |
12ce8ba3 JC |
382 | static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw, |
383 | struct ieee80211_vif *vif) | |
384 | { | |
385 | struct mac80211_hwsim_data *data = hw->priv; | |
386 | return le64_to_cpu(__mac80211_hwsim_get_tsf(data)); | |
387 | } | |
388 | ||
389 | static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw, | |
390 | struct ieee80211_vif *vif, u64 tsf) | |
391 | { | |
392 | struct mac80211_hwsim_data *data = hw->priv; | |
393 | struct timeval tv = ktime_to_timeval(ktime_get_real()); | |
394 | u64 now = tv.tv_sec * USEC_PER_SEC + tv.tv_usec; | |
395 | data->tsf_offset = tsf - now; | |
396 | } | |
397 | ||
acc1e7a3 JM |
398 | static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw, |
399 | struct sk_buff *tx_skb) | |
400 | { | |
401 | struct mac80211_hwsim_data *data = hw->priv; | |
402 | struct sk_buff *skb; | |
403 | struct hwsim_radiotap_hdr *hdr; | |
404 | u16 flags; | |
405 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb); | |
406 | struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info); | |
407 | ||
408 | if (!netif_running(hwsim_mon)) | |
409 | return; | |
410 | ||
411 | skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC); | |
412 | if (skb == NULL) | |
413 | return; | |
414 | ||
415 | hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr)); | |
416 | hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION; | |
417 | hdr->hdr.it_pad = 0; | |
418 | hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr)); | |
f248f105 JM |
419 | hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) | |
420 | (1 << IEEE80211_RADIOTAP_RATE) | | |
2f40b940 | 421 | (1 << IEEE80211_RADIOTAP_TSFT) | |
f248f105 | 422 | (1 << IEEE80211_RADIOTAP_CHANNEL)); |
2f40b940 | 423 | hdr->rt_tsft = __mac80211_hwsim_get_tsf(data); |
acc1e7a3 JM |
424 | hdr->rt_flags = 0; |
425 | hdr->rt_rate = txrate->bitrate / 5; | |
df70b4ac | 426 | hdr->rt_channel = cpu_to_le16(data->channel->center_freq); |
acc1e7a3 JM |
427 | flags = IEEE80211_CHAN_2GHZ; |
428 | if (txrate->flags & IEEE80211_RATE_ERP_G) | |
429 | flags |= IEEE80211_CHAN_OFDM; | |
430 | else | |
431 | flags |= IEEE80211_CHAN_CCK; | |
432 | hdr->rt_chbitmask = cpu_to_le16(flags); | |
433 | ||
434 | skb->dev = hwsim_mon; | |
435 | skb_set_mac_header(skb, 0); | |
436 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
437 | skb->pkt_type = PACKET_OTHERHOST; | |
f248f105 | 438 | skb->protocol = htons(ETH_P_802_2); |
acc1e7a3 JM |
439 | memset(skb->cb, 0, sizeof(skb->cb)); |
440 | netif_rx(skb); | |
441 | } | |
442 | ||
443 | ||
6c085227 JM |
444 | static void mac80211_hwsim_monitor_ack(struct ieee80211_hw *hw, const u8 *addr) |
445 | { | |
446 | struct mac80211_hwsim_data *data = hw->priv; | |
447 | struct sk_buff *skb; | |
448 | struct hwsim_radiotap_hdr *hdr; | |
449 | u16 flags; | |
450 | struct ieee80211_hdr *hdr11; | |
451 | ||
452 | if (!netif_running(hwsim_mon)) | |
453 | return; | |
454 | ||
455 | skb = dev_alloc_skb(100); | |
456 | if (skb == NULL) | |
457 | return; | |
458 | ||
459 | hdr = (struct hwsim_radiotap_hdr *) skb_put(skb, sizeof(*hdr)); | |
460 | hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION; | |
461 | hdr->hdr.it_pad = 0; | |
462 | hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr)); | |
463 | hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) | | |
464 | (1 << IEEE80211_RADIOTAP_CHANNEL)); | |
465 | hdr->rt_flags = 0; | |
466 | hdr->rt_rate = 0; | |
467 | hdr->rt_channel = cpu_to_le16(data->channel->center_freq); | |
468 | flags = IEEE80211_CHAN_2GHZ; | |
469 | hdr->rt_chbitmask = cpu_to_le16(flags); | |
470 | ||
471 | hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10); | |
472 | hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL | | |
473 | IEEE80211_STYPE_ACK); | |
474 | hdr11->duration_id = cpu_to_le16(0); | |
475 | memcpy(hdr11->addr1, addr, ETH_ALEN); | |
476 | ||
477 | skb->dev = hwsim_mon; | |
478 | skb_set_mac_header(skb, 0); | |
479 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
480 | skb->pkt_type = PACKET_OTHERHOST; | |
481 | skb->protocol = htons(ETH_P_802_2); | |
482 | memset(skb->cb, 0, sizeof(skb->cb)); | |
483 | netif_rx(skb); | |
484 | } | |
485 | ||
486 | ||
fc6971d4 JM |
487 | static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data, |
488 | struct sk_buff *skb) | |
489 | { | |
490 | switch (data->ps) { | |
491 | case PS_DISABLED: | |
492 | return true; | |
493 | case PS_ENABLED: | |
494 | return false; | |
495 | case PS_AUTO_POLL: | |
496 | /* TODO: accept (some) Beacons by default and other frames only | |
497 | * if pending PS-Poll has been sent */ | |
498 | return true; | |
499 | case PS_MANUAL_POLL: | |
500 | /* Allow unicast frames to own address if there is a pending | |
501 | * PS-Poll */ | |
502 | if (data->ps_poll_pending && | |
503 | memcmp(data->hw->wiphy->perm_addr, skb->data + 4, | |
504 | ETH_ALEN) == 0) { | |
505 | data->ps_poll_pending = false; | |
506 | return true; | |
507 | } | |
508 | return false; | |
509 | } | |
510 | ||
511 | return true; | |
512 | } | |
513 | ||
514 | ||
265dc7f0 JM |
515 | struct mac80211_hwsim_addr_match_data { |
516 | bool ret; | |
517 | const u8 *addr; | |
518 | }; | |
519 | ||
520 | static void mac80211_hwsim_addr_iter(void *data, u8 *mac, | |
521 | struct ieee80211_vif *vif) | |
522 | { | |
523 | struct mac80211_hwsim_addr_match_data *md = data; | |
524 | if (memcmp(mac, md->addr, ETH_ALEN) == 0) | |
525 | md->ret = true; | |
526 | } | |
527 | ||
528 | ||
529 | static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data, | |
530 | const u8 *addr) | |
531 | { | |
532 | struct mac80211_hwsim_addr_match_data md; | |
533 | ||
534 | if (memcmp(addr, data->hw->wiphy->perm_addr, ETH_ALEN) == 0) | |
535 | return true; | |
536 | ||
537 | md.ret = false; | |
538 | md.addr = addr; | |
539 | ieee80211_iterate_active_interfaces_atomic(data->hw, | |
540 | mac80211_hwsim_addr_iter, | |
541 | &md); | |
542 | ||
543 | return md.ret; | |
544 | } | |
545 | ||
7882513b JL |
546 | static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw, |
547 | struct sk_buff *my_skb, | |
548 | int dst_pid) | |
549 | { | |
550 | struct sk_buff *skb; | |
551 | struct mac80211_hwsim_data *data = hw->priv; | |
552 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data; | |
553 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb); | |
554 | void *msg_head; | |
555 | unsigned int hwsim_flags = 0; | |
556 | int i; | |
557 | struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES]; | |
558 | ||
559 | if (data->idle) { | |
560 | wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n"); | |
561 | dev_kfree_skb(my_skb); | |
562 | return; | |
563 | } | |
564 | ||
565 | if (data->ps != PS_DISABLED) | |
566 | hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM); | |
567 | /* If the queue contains MAX_QUEUE skb's drop some */ | |
568 | if (skb_queue_len(&data->pending) >= MAX_QUEUE) { | |
569 | /* Droping until WARN_QUEUE level */ | |
570 | while (skb_queue_len(&data->pending) >= WARN_QUEUE) | |
571 | skb_dequeue(&data->pending); | |
572 | } | |
573 | ||
574 | skb = genlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC); | |
575 | if (skb == NULL) | |
576 | goto nla_put_failure; | |
577 | ||
578 | msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0, | |
579 | HWSIM_CMD_FRAME); | |
580 | if (msg_head == NULL) { | |
581 | printk(KERN_DEBUG "mac80211_hwsim: problem with msg_head\n"); | |
582 | goto nla_put_failure; | |
583 | } | |
584 | ||
633c9389 DM |
585 | if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER, |
586 | sizeof(struct mac_address), data->addresses[1].addr)) | |
587 | goto nla_put_failure; | |
265dc7f0 | 588 | |
7882513b | 589 | /* We get the skb->data */ |
633c9389 DM |
590 | if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data)) |
591 | goto nla_put_failure; | |
7882513b JL |
592 | |
593 | /* We get the flags for this transmission, and we translate them to | |
594 | wmediumd flags */ | |
595 | ||
596 | if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS) | |
597 | hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS; | |
598 | ||
599 | if (info->flags & IEEE80211_TX_CTL_NO_ACK) | |
600 | hwsim_flags |= HWSIM_TX_CTL_NO_ACK; | |
601 | ||
633c9389 DM |
602 | if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags)) |
603 | goto nla_put_failure; | |
7882513b JL |
604 | |
605 | /* We get the tx control (rate and retries) info*/ | |
606 | ||
607 | for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) { | |
608 | tx_attempts[i].idx = info->status.rates[i].idx; | |
609 | tx_attempts[i].count = info->status.rates[i].count; | |
610 | } | |
611 | ||
633c9389 DM |
612 | if (nla_put(skb, HWSIM_ATTR_TX_INFO, |
613 | sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES, | |
614 | tx_attempts)) | |
615 | goto nla_put_failure; | |
7882513b JL |
616 | |
617 | /* We create a cookie to identify this skb */ | |
633c9389 DM |
618 | if (nla_put_u64(skb, HWSIM_ATTR_COOKIE, (unsigned long) my_skb)) |
619 | goto nla_put_failure; | |
7882513b JL |
620 | |
621 | genlmsg_end(skb, msg_head); | |
622 | genlmsg_unicast(&init_net, skb, dst_pid); | |
623 | ||
624 | /* Enqueue the packet */ | |
625 | skb_queue_tail(&data->pending, my_skb); | |
626 | return; | |
627 | ||
628 | nla_put_failure: | |
c393862f | 629 | printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__); |
7882513b JL |
630 | } |
631 | ||
632 | static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw, | |
633 | struct sk_buff *skb) | |
acc1e7a3 | 634 | { |
0e057d73 JB |
635 | struct mac80211_hwsim_data *data = hw->priv, *data2; |
636 | bool ack = false; | |
e36cfdc9 | 637 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; |
acc1e7a3 | 638 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
e36cfdc9 | 639 | struct ieee80211_rx_status rx_status; |
f483ad25 | 640 | struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info); |
acc1e7a3 | 641 | |
70541839 | 642 | if (data->idle) { |
5db55844 | 643 | wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n"); |
70541839 JM |
644 | return false; |
645 | } | |
646 | ||
acc1e7a3 | 647 | memset(&rx_status, 0, sizeof(rx_status)); |
2f40b940 | 648 | rx_status.flag |= RX_FLAG_MACTIME_MPDU; |
acc1e7a3 JM |
649 | rx_status.freq = data->channel->center_freq; |
650 | rx_status.band = data->channel->band; | |
e6a9854b | 651 | rx_status.rate_idx = info->control.rates[0].idx; |
281ed297 JM |
652 | if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS) |
653 | rx_status.flag |= RX_FLAG_HT; | |
654 | if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH) | |
655 | rx_status.flag |= RX_FLAG_40MHZ; | |
656 | if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI) | |
657 | rx_status.flag |= RX_FLAG_SHORT_GI; | |
4b14c96d | 658 | /* TODO: simulate real signal strength (and optional packet loss) */ |
bdd7bd16 | 659 | rx_status.signal = data->power_level - 50; |
acc1e7a3 | 660 | |
fc6971d4 JM |
661 | if (data->ps != PS_DISABLED) |
662 | hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM); | |
663 | ||
90e3012e JB |
664 | /* release the skb's source info */ |
665 | skb_orphan(skb); | |
c0acf38e | 666 | skb_dst_drop(skb); |
90e3012e JB |
667 | skb->mark = 0; |
668 | secpath_reset(skb); | |
669 | nf_reset(skb); | |
670 | ||
acc1e7a3 | 671 | /* Copy skb to all enabled radios that are on the current frequency */ |
0e057d73 JB |
672 | spin_lock(&hwsim_radio_lock); |
673 | list_for_each_entry(data2, &hwsim_radios, list) { | |
acc1e7a3 | 674 | struct sk_buff *nskb; |
f483ad25 | 675 | struct ieee80211_mgmt *mgmt; |
acc1e7a3 | 676 | |
0e057d73 | 677 | if (data == data2) |
acc1e7a3 | 678 | continue; |
0e057d73 | 679 | |
70541839 JM |
680 | if (data2->idle || !data2->started || |
681 | !hwsim_ps_rx_ok(data2, skb) || | |
4ff17667 | 682 | !data->channel || !data2->channel || |
73606d00 DW |
683 | data->channel->center_freq != data2->channel->center_freq || |
684 | !(data->group & data2->group)) | |
acc1e7a3 JM |
685 | continue; |
686 | ||
687 | nskb = skb_copy(skb, GFP_ATOMIC); | |
688 | if (nskb == NULL) | |
689 | continue; | |
690 | ||
265dc7f0 | 691 | if (mac80211_hwsim_addr_match(data2, hdr->addr1)) |
0e057d73 | 692 | ack = true; |
f483ad25 JC |
693 | |
694 | /* set bcn timestamp relative to receiver mactime */ | |
4e13f092 | 695 | rx_status.mactime = |
f483ad25 JC |
696 | le64_to_cpu(__mac80211_hwsim_get_tsf(data2)); |
697 | mgmt = (struct ieee80211_mgmt *) nskb->data; | |
698 | if (ieee80211_is_beacon(mgmt->frame_control) || | |
699 | ieee80211_is_probe_resp(mgmt->frame_control)) | |
700 | mgmt->u.beacon.timestamp = cpu_to_le64( | |
701 | rx_status.mactime + | |
b6ba82c8 | 702 | (data->tsf_offset - data2->tsf_offset) + |
f483ad25 JC |
703 | 24 * 8 * 10 / txrate->bitrate); |
704 | ||
f1d58c25 JB |
705 | memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status)); |
706 | ieee80211_rx_irqsafe(data2->hw, nskb); | |
acc1e7a3 | 707 | } |
0e057d73 | 708 | spin_unlock(&hwsim_radio_lock); |
acc1e7a3 | 709 | |
e36cfdc9 JM |
710 | return ack; |
711 | } | |
712 | ||
7bb45683 | 713 | static void mac80211_hwsim_tx(struct ieee80211_hw *hw, struct sk_buff *skb) |
e36cfdc9 | 714 | { |
0e057d73 | 715 | bool ack; |
e36cfdc9 | 716 | struct ieee80211_tx_info *txi; |
a1910f9c | 717 | u32 _pid; |
e36cfdc9 JM |
718 | |
719 | mac80211_hwsim_monitor_rx(hw, skb); | |
720 | ||
721 | if (skb->len < 10) { | |
722 | /* Should not happen; just a sanity check for addr1 use */ | |
723 | dev_kfree_skb(skb); | |
7bb45683 | 724 | return; |
e36cfdc9 JM |
725 | } |
726 | ||
7882513b | 727 | /* wmediumd mode check */ |
a1910f9c | 728 | _pid = ACCESS_ONCE(wmediumd_pid); |
7882513b JL |
729 | |
730 | if (_pid) | |
731 | return mac80211_hwsim_tx_frame_nl(hw, skb, _pid); | |
732 | ||
733 | /* NO wmediumd detected, perfect medium simulation */ | |
734 | ack = mac80211_hwsim_tx_frame_no_nl(hw, skb); | |
735 | ||
6c085227 JM |
736 | if (ack && skb->len >= 16) { |
737 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; | |
738 | mac80211_hwsim_monitor_ack(hw, hdr->addr2); | |
739 | } | |
e36cfdc9 | 740 | |
acc1e7a3 | 741 | txi = IEEE80211_SKB_CB(skb); |
8aa21e6f | 742 | |
25d834e1 JB |
743 | if (txi->control.vif) |
744 | hwsim_check_magic(txi->control.vif); | |
81c06523 JB |
745 | if (txi->control.sta) |
746 | hwsim_check_sta_magic(txi->control.sta); | |
8aa21e6f | 747 | |
e6a9854b | 748 | ieee80211_tx_info_clear_status(txi); |
2a4ffa4c JC |
749 | |
750 | /* frame was transmitted at most favorable rate at first attempt */ | |
751 | txi->control.rates[0].count = 1; | |
752 | txi->control.rates[1].idx = -1; | |
753 | ||
e6a9854b JB |
754 | if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack) |
755 | txi->flags |= IEEE80211_TX_STAT_ACK; | |
acc1e7a3 | 756 | ieee80211_tx_status_irqsafe(hw, skb); |
acc1e7a3 JM |
757 | } |
758 | ||
759 | ||
760 | static int mac80211_hwsim_start(struct ieee80211_hw *hw) | |
761 | { | |
762 | struct mac80211_hwsim_data *data = hw->priv; | |
c96c31e4 | 763 | wiphy_debug(hw->wiphy, "%s\n", __func__); |
3db1cd5c | 764 | data->started = true; |
acc1e7a3 JM |
765 | return 0; |
766 | } | |
767 | ||
768 | ||
769 | static void mac80211_hwsim_stop(struct ieee80211_hw *hw) | |
770 | { | |
771 | struct mac80211_hwsim_data *data = hw->priv; | |
3db1cd5c | 772 | data->started = false; |
ab1ef980 | 773 | del_timer(&data->beacon_timer); |
c96c31e4 | 774 | wiphy_debug(hw->wiphy, "%s\n", __func__); |
acc1e7a3 JM |
775 | } |
776 | ||
777 | ||
778 | static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw, | |
1ed32e4f | 779 | struct ieee80211_vif *vif) |
acc1e7a3 | 780 | { |
c96c31e4 | 781 | wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n", |
2ca27bcf JB |
782 | __func__, ieee80211_vif_type_p2p(vif), |
783 | vif->addr); | |
1ed32e4f | 784 | hwsim_set_magic(vif); |
acc1e7a3 JM |
785 | return 0; |
786 | } | |
787 | ||
788 | ||
c35d0270 JB |
789 | static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw, |
790 | struct ieee80211_vif *vif, | |
2ca27bcf JB |
791 | enum nl80211_iftype newtype, |
792 | bool newp2p) | |
c35d0270 | 793 | { |
2ca27bcf | 794 | newtype = ieee80211_iftype_p2p(newtype, newp2p); |
c35d0270 JB |
795 | wiphy_debug(hw->wiphy, |
796 | "%s (old type=%d, new type=%d, mac_addr=%pM)\n", | |
2ca27bcf JB |
797 | __func__, ieee80211_vif_type_p2p(vif), |
798 | newtype, vif->addr); | |
c35d0270 JB |
799 | hwsim_check_magic(vif); |
800 | ||
801 | return 0; | |
802 | } | |
803 | ||
acc1e7a3 | 804 | static void mac80211_hwsim_remove_interface( |
1ed32e4f | 805 | struct ieee80211_hw *hw, struct ieee80211_vif *vif) |
acc1e7a3 | 806 | { |
c96c31e4 | 807 | wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n", |
2ca27bcf JB |
808 | __func__, ieee80211_vif_type_p2p(vif), |
809 | vif->addr); | |
1ed32e4f JB |
810 | hwsim_check_magic(vif); |
811 | hwsim_clear_magic(vif); | |
acc1e7a3 JM |
812 | } |
813 | ||
814 | ||
815 | static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac, | |
816 | struct ieee80211_vif *vif) | |
817 | { | |
818 | struct ieee80211_hw *hw = arg; | |
acc1e7a3 | 819 | struct sk_buff *skb; |
acc1e7a3 | 820 | struct ieee80211_tx_info *info; |
a1910f9c | 821 | u32 _pid; |
acc1e7a3 | 822 | |
8aa21e6f JB |
823 | hwsim_check_magic(vif); |
824 | ||
55b39619 | 825 | if (vif->type != NL80211_IFTYPE_AP && |
2b2d7795 JB |
826 | vif->type != NL80211_IFTYPE_MESH_POINT && |
827 | vif->type != NL80211_IFTYPE_ADHOC) | |
acc1e7a3 JM |
828 | return; |
829 | ||
830 | skb = ieee80211_beacon_get(hw, vif); | |
831 | if (skb == NULL) | |
832 | return; | |
833 | info = IEEE80211_SKB_CB(skb); | |
834 | ||
835 | mac80211_hwsim_monitor_rx(hw, skb); | |
7882513b JL |
836 | |
837 | /* wmediumd mode check */ | |
a1910f9c | 838 | _pid = ACCESS_ONCE(wmediumd_pid); |
7882513b JL |
839 | |
840 | if (_pid) | |
841 | return mac80211_hwsim_tx_frame_nl(hw, skb, _pid); | |
842 | ||
843 | mac80211_hwsim_tx_frame_no_nl(hw, skb); | |
acc1e7a3 JM |
844 | dev_kfree_skb(skb); |
845 | } | |
846 | ||
847 | ||
848 | static void mac80211_hwsim_beacon(unsigned long arg) | |
849 | { | |
850 | struct ieee80211_hw *hw = (struct ieee80211_hw *) arg; | |
851 | struct mac80211_hwsim_data *data = hw->priv; | |
852 | ||
4c4c671a | 853 | if (!data->started) |
acc1e7a3 JM |
854 | return; |
855 | ||
f248f105 JM |
856 | ieee80211_iterate_active_interfaces_atomic( |
857 | hw, mac80211_hwsim_beacon_tx, hw); | |
acc1e7a3 JM |
858 | |
859 | data->beacon_timer.expires = jiffies + data->beacon_int; | |
860 | add_timer(&data->beacon_timer); | |
861 | } | |
862 | ||
0aaffa9b JB |
863 | static const char *hwsim_chantypes[] = { |
864 | [NL80211_CHAN_NO_HT] = "noht", | |
865 | [NL80211_CHAN_HT20] = "ht20", | |
866 | [NL80211_CHAN_HT40MINUS] = "ht40-", | |
867 | [NL80211_CHAN_HT40PLUS] = "ht40+", | |
868 | }; | |
acc1e7a3 | 869 | |
e8975581 | 870 | static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed) |
acc1e7a3 JM |
871 | { |
872 | struct mac80211_hwsim_data *data = hw->priv; | |
e8975581 | 873 | struct ieee80211_conf *conf = &hw->conf; |
0f78231b JB |
874 | static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = { |
875 | [IEEE80211_SMPS_AUTOMATIC] = "auto", | |
876 | [IEEE80211_SMPS_OFF] = "off", | |
877 | [IEEE80211_SMPS_STATIC] = "static", | |
878 | [IEEE80211_SMPS_DYNAMIC] = "dynamic", | |
879 | }; | |
880 | ||
c96c31e4 JP |
881 | wiphy_debug(hw->wiphy, |
882 | "%s (freq=%d/%s idle=%d ps=%d smps=%s)\n", | |
883 | __func__, | |
884 | conf->channel->center_freq, | |
885 | hwsim_chantypes[conf->channel_type], | |
886 | !!(conf->flags & IEEE80211_CONF_IDLE), | |
887 | !!(conf->flags & IEEE80211_CONF_PS), | |
888 | smps_modes[conf->smps_mode]); | |
acc1e7a3 | 889 | |
70541839 JM |
890 | data->idle = !!(conf->flags & IEEE80211_CONF_IDLE); |
891 | ||
acc1e7a3 | 892 | data->channel = conf->channel; |
bdd7bd16 | 893 | data->power_level = conf->power_level; |
4c4c671a | 894 | if (!data->started || !data->beacon_int) |
acc1e7a3 JM |
895 | del_timer(&data->beacon_timer); |
896 | else | |
897 | mod_timer(&data->beacon_timer, jiffies + data->beacon_int); | |
898 | ||
899 | return 0; | |
900 | } | |
901 | ||
902 | ||
903 | static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw, | |
904 | unsigned int changed_flags, | |
3ac64bee | 905 | unsigned int *total_flags,u64 multicast) |
acc1e7a3 JM |
906 | { |
907 | struct mac80211_hwsim_data *data = hw->priv; | |
908 | ||
c96c31e4 | 909 | wiphy_debug(hw->wiphy, "%s\n", __func__); |
acc1e7a3 JM |
910 | |
911 | data->rx_filter = 0; | |
912 | if (*total_flags & FIF_PROMISC_IN_BSS) | |
913 | data->rx_filter |= FIF_PROMISC_IN_BSS; | |
914 | if (*total_flags & FIF_ALLMULTI) | |
915 | data->rx_filter |= FIF_ALLMULTI; | |
916 | ||
917 | *total_flags = data->rx_filter; | |
918 | } | |
919 | ||
8aa21e6f JB |
920 | static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw, |
921 | struct ieee80211_vif *vif, | |
922 | struct ieee80211_bss_conf *info, | |
923 | u32 changed) | |
924 | { | |
fc6971d4 | 925 | struct hwsim_vif_priv *vp = (void *)vif->drv_priv; |
57c4d7b4 | 926 | struct mac80211_hwsim_data *data = hw->priv; |
fc6971d4 | 927 | |
8aa21e6f | 928 | hwsim_check_magic(vif); |
fe63bfa3 | 929 | |
c96c31e4 | 930 | wiphy_debug(hw->wiphy, "%s(changed=0x%x)\n", __func__, changed); |
fe63bfa3 | 931 | |
2d0ddec5 | 932 | if (changed & BSS_CHANGED_BSSID) { |
c96c31e4 JP |
933 | wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n", |
934 | __func__, info->bssid); | |
2d0ddec5 JB |
935 | memcpy(vp->bssid, info->bssid, ETH_ALEN); |
936 | } | |
937 | ||
fe63bfa3 | 938 | if (changed & BSS_CHANGED_ASSOC) { |
c96c31e4 JP |
939 | wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n", |
940 | info->assoc, info->aid); | |
fc6971d4 JM |
941 | vp->assoc = info->assoc; |
942 | vp->aid = info->aid; | |
fe63bfa3 JM |
943 | } |
944 | ||
57c4d7b4 | 945 | if (changed & BSS_CHANGED_BEACON_INT) { |
c96c31e4 | 946 | wiphy_debug(hw->wiphy, " BCNINT: %d\n", info->beacon_int); |
57c4d7b4 | 947 | data->beacon_int = 1024 * info->beacon_int / 1000 * HZ / 1000; |
d91f190c | 948 | if (WARN_ON(!data->beacon_int)) |
57c4d7b4 | 949 | data->beacon_int = 1; |
ffed1307 JM |
950 | if (data->started) |
951 | mod_timer(&data->beacon_timer, | |
952 | jiffies + data->beacon_int); | |
57c4d7b4 JB |
953 | } |
954 | ||
fe63bfa3 | 955 | if (changed & BSS_CHANGED_ERP_CTS_PROT) { |
c96c31e4 JP |
956 | wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n", |
957 | info->use_cts_prot); | |
fe63bfa3 JM |
958 | } |
959 | ||
960 | if (changed & BSS_CHANGED_ERP_PREAMBLE) { | |
c96c31e4 JP |
961 | wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n", |
962 | info->use_short_preamble); | |
fe63bfa3 JM |
963 | } |
964 | ||
965 | if (changed & BSS_CHANGED_ERP_SLOT) { | |
c96c31e4 | 966 | wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot); |
fe63bfa3 JM |
967 | } |
968 | ||
969 | if (changed & BSS_CHANGED_HT) { | |
c96c31e4 JP |
970 | wiphy_debug(hw->wiphy, " HT: op_mode=0x%x, chantype=%s\n", |
971 | info->ht_operation_mode, | |
972 | hwsim_chantypes[info->channel_type]); | |
fe63bfa3 JM |
973 | } |
974 | ||
975 | if (changed & BSS_CHANGED_BASIC_RATES) { | |
c96c31e4 JP |
976 | wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n", |
977 | (unsigned long long) info->basic_rates); | |
fe63bfa3 | 978 | } |
8aa21e6f JB |
979 | } |
980 | ||
1d669cbf JB |
981 | static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw, |
982 | struct ieee80211_vif *vif, | |
983 | struct ieee80211_sta *sta) | |
984 | { | |
985 | hwsim_check_magic(vif); | |
986 | hwsim_set_sta_magic(sta); | |
987 | ||
988 | return 0; | |
989 | } | |
990 | ||
991 | static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw, | |
992 | struct ieee80211_vif *vif, | |
993 | struct ieee80211_sta *sta) | |
994 | { | |
995 | hwsim_check_magic(vif); | |
996 | hwsim_clear_sta_magic(sta); | |
997 | ||
998 | return 0; | |
999 | } | |
1000 | ||
8aa21e6f JB |
1001 | static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw, |
1002 | struct ieee80211_vif *vif, | |
17741cdc JB |
1003 | enum sta_notify_cmd cmd, |
1004 | struct ieee80211_sta *sta) | |
8aa21e6f JB |
1005 | { |
1006 | hwsim_check_magic(vif); | |
1d669cbf | 1007 | |
81c06523 | 1008 | switch (cmd) { |
89fad578 CL |
1009 | case STA_NOTIFY_SLEEP: |
1010 | case STA_NOTIFY_AWAKE: | |
1011 | /* TODO: make good use of these flags */ | |
1012 | break; | |
1d669cbf JB |
1013 | default: |
1014 | WARN(1, "Invalid sta notify: %d\n", cmd); | |
1015 | break; | |
81c06523 JB |
1016 | } |
1017 | } | |
1018 | ||
1019 | static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw, | |
1020 | struct ieee80211_sta *sta, | |
1021 | bool set) | |
1022 | { | |
1023 | hwsim_check_sta_magic(sta); | |
1024 | return 0; | |
8aa21e6f | 1025 | } |
acc1e7a3 | 1026 | |
1e898ff8 | 1027 | static int mac80211_hwsim_conf_tx( |
8a3a3c85 EP |
1028 | struct ieee80211_hw *hw, |
1029 | struct ieee80211_vif *vif, u16 queue, | |
1e898ff8 JM |
1030 | const struct ieee80211_tx_queue_params *params) |
1031 | { | |
c96c31e4 JP |
1032 | wiphy_debug(hw->wiphy, |
1033 | "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n", | |
1034 | __func__, queue, | |
1035 | params->txop, params->cw_min, | |
1036 | params->cw_max, params->aifs); | |
1e898ff8 JM |
1037 | return 0; |
1038 | } | |
1039 | ||
1289723e HS |
1040 | static int mac80211_hwsim_get_survey( |
1041 | struct ieee80211_hw *hw, int idx, | |
1042 | struct survey_info *survey) | |
1043 | { | |
1044 | struct ieee80211_conf *conf = &hw->conf; | |
1045 | ||
c96c31e4 | 1046 | wiphy_debug(hw->wiphy, "%s (idx=%d)\n", __func__, idx); |
1289723e HS |
1047 | |
1048 | if (idx != 0) | |
1049 | return -ENOENT; | |
1050 | ||
1051 | /* Current channel */ | |
1052 | survey->channel = conf->channel; | |
1053 | ||
1054 | /* | |
1055 | * Magically conjured noise level --- this is only ok for simulated hardware. | |
1056 | * | |
1057 | * A real driver which cannot determine the real channel noise MUST NOT | |
1058 | * report any noise, especially not a magically conjured one :-) | |
1059 | */ | |
1060 | survey->filled = SURVEY_INFO_NOISE_DBM; | |
1061 | survey->noise = -92; | |
1062 | ||
1063 | return 0; | |
1064 | } | |
1065 | ||
aff89a9b JB |
1066 | #ifdef CONFIG_NL80211_TESTMODE |
1067 | /* | |
1068 | * This section contains example code for using netlink | |
1069 | * attributes with the testmode command in nl80211. | |
1070 | */ | |
1071 | ||
1072 | /* These enums need to be kept in sync with userspace */ | |
1073 | enum hwsim_testmode_attr { | |
1074 | __HWSIM_TM_ATTR_INVALID = 0, | |
1075 | HWSIM_TM_ATTR_CMD = 1, | |
1076 | HWSIM_TM_ATTR_PS = 2, | |
1077 | ||
1078 | /* keep last */ | |
1079 | __HWSIM_TM_ATTR_AFTER_LAST, | |
1080 | HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1 | |
1081 | }; | |
1082 | ||
1083 | enum hwsim_testmode_cmd { | |
1084 | HWSIM_TM_CMD_SET_PS = 0, | |
1085 | HWSIM_TM_CMD_GET_PS = 1, | |
1086 | }; | |
1087 | ||
1088 | static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = { | |
1089 | [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 }, | |
1090 | [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 }, | |
1091 | }; | |
1092 | ||
1093 | static int hwsim_fops_ps_write(void *dat, u64 val); | |
1094 | ||
5bc38193 JB |
1095 | static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw, |
1096 | void *data, int len) | |
aff89a9b JB |
1097 | { |
1098 | struct mac80211_hwsim_data *hwsim = hw->priv; | |
1099 | struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1]; | |
1100 | struct sk_buff *skb; | |
1101 | int err, ps; | |
1102 | ||
1103 | err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len, | |
1104 | hwsim_testmode_policy); | |
1105 | if (err) | |
1106 | return err; | |
1107 | ||
1108 | if (!tb[HWSIM_TM_ATTR_CMD]) | |
1109 | return -EINVAL; | |
1110 | ||
1111 | switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) { | |
1112 | case HWSIM_TM_CMD_SET_PS: | |
1113 | if (!tb[HWSIM_TM_ATTR_PS]) | |
1114 | return -EINVAL; | |
1115 | ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]); | |
1116 | return hwsim_fops_ps_write(hwsim, ps); | |
1117 | case HWSIM_TM_CMD_GET_PS: | |
1118 | skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, | |
1119 | nla_total_size(sizeof(u32))); | |
1120 | if (!skb) | |
1121 | return -ENOMEM; | |
633c9389 DM |
1122 | if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps)) |
1123 | goto nla_put_failure; | |
aff89a9b JB |
1124 | return cfg80211_testmode_reply(skb); |
1125 | default: | |
1126 | return -EOPNOTSUPP; | |
1127 | } | |
1128 | ||
1129 | nla_put_failure: | |
1130 | kfree_skb(skb); | |
1131 | return -ENOBUFS; | |
1132 | } | |
1133 | #endif | |
1134 | ||
8b73d13a JB |
1135 | static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw, |
1136 | struct ieee80211_vif *vif, | |
1137 | enum ieee80211_ampdu_mlme_action action, | |
0b01f030 JB |
1138 | struct ieee80211_sta *sta, u16 tid, u16 *ssn, |
1139 | u8 buf_size) | |
8b73d13a JB |
1140 | { |
1141 | switch (action) { | |
1142 | case IEEE80211_AMPDU_TX_START: | |
1143 | ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid); | |
1144 | break; | |
1145 | case IEEE80211_AMPDU_TX_STOP: | |
1146 | ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); | |
1147 | break; | |
1148 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
1149 | break; | |
1150 | case IEEE80211_AMPDU_RX_START: | |
1151 | case IEEE80211_AMPDU_RX_STOP: | |
1152 | break; | |
1153 | default: | |
1154 | return -EOPNOTSUPP; | |
1155 | } | |
1156 | ||
1157 | return 0; | |
1158 | } | |
1159 | ||
a80f7c0b JB |
1160 | static void mac80211_hwsim_flush(struct ieee80211_hw *hw, bool drop) |
1161 | { | |
7882513b | 1162 | /* Not implemented, queues only on kernel side */ |
a80f7c0b JB |
1163 | } |
1164 | ||
69068036 JB |
1165 | struct hw_scan_done { |
1166 | struct delayed_work w; | |
1167 | struct ieee80211_hw *hw; | |
1168 | }; | |
8b73d13a | 1169 | |
69068036 JB |
1170 | static void hw_scan_done(struct work_struct *work) |
1171 | { | |
1172 | struct hw_scan_done *hsd = | |
1173 | container_of(work, struct hw_scan_done, w.work); | |
1174 | ||
1175 | ieee80211_scan_completed(hsd->hw, false); | |
1176 | kfree(hsd); | |
1177 | } | |
1178 | ||
1179 | static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw, | |
a060bbfe | 1180 | struct ieee80211_vif *vif, |
69068036 JB |
1181 | struct cfg80211_scan_request *req) |
1182 | { | |
1183 | struct hw_scan_done *hsd = kzalloc(sizeof(*hsd), GFP_KERNEL); | |
1184 | int i; | |
1185 | ||
1186 | if (!hsd) | |
1187 | return -ENOMEM; | |
1188 | ||
1189 | hsd->hw = hw; | |
1190 | INIT_DELAYED_WORK(&hsd->w, hw_scan_done); | |
1191 | ||
f74cb0f7 | 1192 | printk(KERN_DEBUG "hwsim hw_scan request\n"); |
69068036 | 1193 | for (i = 0; i < req->n_channels; i++) |
f74cb0f7 | 1194 | printk(KERN_DEBUG "hwsim hw_scan freq %d\n", |
69068036 | 1195 | req->channels[i]->center_freq); |
8ee31080 JB |
1196 | print_hex_dump(KERN_DEBUG, "scan IEs: ", DUMP_PREFIX_OFFSET, |
1197 | 16, 1, req->ie, req->ie_len, 1); | |
69068036 JB |
1198 | |
1199 | ieee80211_queue_delayed_work(hw, &hsd->w, 2 * HZ); | |
1200 | ||
1201 | return 0; | |
1202 | } | |
1203 | ||
f74cb0f7 LR |
1204 | static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw) |
1205 | { | |
1206 | struct mac80211_hwsim_data *hwsim = hw->priv; | |
1207 | ||
1208 | mutex_lock(&hwsim->mutex); | |
1209 | ||
1210 | if (hwsim->scanning) { | |
1211 | printk(KERN_DEBUG "two hwsim sw_scans detected!\n"); | |
1212 | goto out; | |
1213 | } | |
1214 | ||
1215 | printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n"); | |
1216 | hwsim->scanning = true; | |
1217 | ||
1218 | out: | |
1219 | mutex_unlock(&hwsim->mutex); | |
1220 | } | |
1221 | ||
1222 | static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw) | |
1223 | { | |
1224 | struct mac80211_hwsim_data *hwsim = hw->priv; | |
1225 | ||
1226 | mutex_lock(&hwsim->mutex); | |
1227 | ||
1228 | printk(KERN_DEBUG "hwsim sw_scan_complete\n"); | |
23ff98fc | 1229 | hwsim->scanning = false; |
f74cb0f7 LR |
1230 | |
1231 | mutex_unlock(&hwsim->mutex); | |
1232 | } | |
1233 | ||
69068036 | 1234 | static struct ieee80211_ops mac80211_hwsim_ops = |
acc1e7a3 JM |
1235 | { |
1236 | .tx = mac80211_hwsim_tx, | |
1237 | .start = mac80211_hwsim_start, | |
1238 | .stop = mac80211_hwsim_stop, | |
1239 | .add_interface = mac80211_hwsim_add_interface, | |
c35d0270 | 1240 | .change_interface = mac80211_hwsim_change_interface, |
acc1e7a3 JM |
1241 | .remove_interface = mac80211_hwsim_remove_interface, |
1242 | .config = mac80211_hwsim_config, | |
1243 | .configure_filter = mac80211_hwsim_configure_filter, | |
8aa21e6f | 1244 | .bss_info_changed = mac80211_hwsim_bss_info_changed, |
1d669cbf JB |
1245 | .sta_add = mac80211_hwsim_sta_add, |
1246 | .sta_remove = mac80211_hwsim_sta_remove, | |
8aa21e6f | 1247 | .sta_notify = mac80211_hwsim_sta_notify, |
81c06523 | 1248 | .set_tim = mac80211_hwsim_set_tim, |
1e898ff8 | 1249 | .conf_tx = mac80211_hwsim_conf_tx, |
1289723e | 1250 | .get_survey = mac80211_hwsim_get_survey, |
aff89a9b | 1251 | CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd) |
8b73d13a | 1252 | .ampdu_action = mac80211_hwsim_ampdu_action, |
f74cb0f7 LR |
1253 | .sw_scan_start = mac80211_hwsim_sw_scan, |
1254 | .sw_scan_complete = mac80211_hwsim_sw_scan_complete, | |
a80f7c0b | 1255 | .flush = mac80211_hwsim_flush, |
12ce8ba3 JC |
1256 | .get_tsf = mac80211_hwsim_get_tsf, |
1257 | .set_tsf = mac80211_hwsim_set_tsf, | |
acc1e7a3 JM |
1258 | }; |
1259 | ||
1260 | ||
1261 | static void mac80211_hwsim_free(void) | |
1262 | { | |
0e057d73 | 1263 | struct list_head tmplist, *i, *tmp; |
e603d9d8 | 1264 | struct mac80211_hwsim_data *data, *tmpdata; |
0e057d73 JB |
1265 | |
1266 | INIT_LIST_HEAD(&tmplist); | |
1267 | ||
1268 | spin_lock_bh(&hwsim_radio_lock); | |
1269 | list_for_each_safe(i, tmp, &hwsim_radios) | |
1270 | list_move(i, &tmplist); | |
1271 | spin_unlock_bh(&hwsim_radio_lock); | |
1272 | ||
e603d9d8 | 1273 | list_for_each_entry_safe(data, tmpdata, &tmplist, list) { |
73606d00 | 1274 | debugfs_remove(data->debugfs_group); |
fc6971d4 JM |
1275 | debugfs_remove(data->debugfs_ps); |
1276 | debugfs_remove(data->debugfs); | |
0e057d73 JB |
1277 | ieee80211_unregister_hw(data->hw); |
1278 | device_unregister(data->dev); | |
1279 | ieee80211_free_hw(data->hw); | |
acc1e7a3 | 1280 | } |
acc1e7a3 JM |
1281 | class_destroy(hwsim_class); |
1282 | } | |
1283 | ||
1284 | ||
1285 | static struct device_driver mac80211_hwsim_driver = { | |
1286 | .name = "mac80211_hwsim" | |
1287 | }; | |
1288 | ||
98d2faae SH |
1289 | static const struct net_device_ops hwsim_netdev_ops = { |
1290 | .ndo_start_xmit = hwsim_mon_xmit, | |
1291 | .ndo_change_mtu = eth_change_mtu, | |
1292 | .ndo_set_mac_address = eth_mac_addr, | |
1293 | .ndo_validate_addr = eth_validate_addr, | |
1294 | }; | |
acc1e7a3 JM |
1295 | |
1296 | static void hwsim_mon_setup(struct net_device *dev) | |
1297 | { | |
98d2faae | 1298 | dev->netdev_ops = &hwsim_netdev_ops; |
acc1e7a3 JM |
1299 | dev->destructor = free_netdev; |
1300 | ether_setup(dev); | |
1301 | dev->tx_queue_len = 0; | |
1302 | dev->type = ARPHRD_IEEE80211_RADIOTAP; | |
1303 | memset(dev->dev_addr, 0, ETH_ALEN); | |
1304 | dev->dev_addr[0] = 0x12; | |
1305 | } | |
1306 | ||
1307 | ||
fc6971d4 JM |
1308 | static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif) |
1309 | { | |
1310 | struct mac80211_hwsim_data *data = dat; | |
1311 | struct hwsim_vif_priv *vp = (void *)vif->drv_priv; | |
fc6971d4 JM |
1312 | struct sk_buff *skb; |
1313 | struct ieee80211_pspoll *pspoll; | |
a1910f9c | 1314 | u32 _pid; |
fc6971d4 JM |
1315 | |
1316 | if (!vp->assoc) | |
1317 | return; | |
1318 | ||
c96c31e4 JP |
1319 | wiphy_debug(data->hw->wiphy, |
1320 | "%s: send PS-Poll to %pM for aid %d\n", | |
1321 | __func__, vp->bssid, vp->aid); | |
fc6971d4 JM |
1322 | |
1323 | skb = dev_alloc_skb(sizeof(*pspoll)); | |
1324 | if (!skb) | |
1325 | return; | |
1326 | pspoll = (void *) skb_put(skb, sizeof(*pspoll)); | |
1327 | pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL | | |
1328 | IEEE80211_STYPE_PSPOLL | | |
1329 | IEEE80211_FCTL_PM); | |
1330 | pspoll->aid = cpu_to_le16(0xc000 | vp->aid); | |
1331 | memcpy(pspoll->bssid, vp->bssid, ETH_ALEN); | |
1332 | memcpy(pspoll->ta, mac, ETH_ALEN); | |
7882513b JL |
1333 | |
1334 | /* wmediumd mode check */ | |
a1910f9c | 1335 | _pid = ACCESS_ONCE(wmediumd_pid); |
7882513b JL |
1336 | |
1337 | if (_pid) | |
1338 | return mac80211_hwsim_tx_frame_nl(data->hw, skb, _pid); | |
1339 | ||
1340 | if (!mac80211_hwsim_tx_frame_no_nl(data->hw, skb)) | |
1341 | printk(KERN_DEBUG "%s: PS-poll frame not ack'ed\n", __func__); | |
fc6971d4 JM |
1342 | dev_kfree_skb(skb); |
1343 | } | |
1344 | ||
1345 | ||
1346 | static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac, | |
1347 | struct ieee80211_vif *vif, int ps) | |
1348 | { | |
1349 | struct hwsim_vif_priv *vp = (void *)vif->drv_priv; | |
fc6971d4 JM |
1350 | struct sk_buff *skb; |
1351 | struct ieee80211_hdr *hdr; | |
a1910f9c | 1352 | u32 _pid; |
fc6971d4 JM |
1353 | |
1354 | if (!vp->assoc) | |
1355 | return; | |
1356 | ||
c96c31e4 JP |
1357 | wiphy_debug(data->hw->wiphy, |
1358 | "%s: send data::nullfunc to %pM ps=%d\n", | |
1359 | __func__, vp->bssid, ps); | |
fc6971d4 JM |
1360 | |
1361 | skb = dev_alloc_skb(sizeof(*hdr)); | |
1362 | if (!skb) | |
1363 | return; | |
1364 | hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN); | |
1365 | hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA | | |
1366 | IEEE80211_STYPE_NULLFUNC | | |
1367 | (ps ? IEEE80211_FCTL_PM : 0)); | |
1368 | hdr->duration_id = cpu_to_le16(0); | |
1369 | memcpy(hdr->addr1, vp->bssid, ETH_ALEN); | |
1370 | memcpy(hdr->addr2, mac, ETH_ALEN); | |
1371 | memcpy(hdr->addr3, vp->bssid, ETH_ALEN); | |
7882513b JL |
1372 | |
1373 | /* wmediumd mode check */ | |
a1910f9c | 1374 | _pid = ACCESS_ONCE(wmediumd_pid); |
7882513b JL |
1375 | |
1376 | if (_pid) | |
1377 | return mac80211_hwsim_tx_frame_nl(data->hw, skb, _pid); | |
1378 | ||
1379 | if (!mac80211_hwsim_tx_frame_no_nl(data->hw, skb)) | |
fc6971d4 JM |
1380 | printk(KERN_DEBUG "%s: nullfunc frame not ack'ed\n", __func__); |
1381 | dev_kfree_skb(skb); | |
1382 | } | |
1383 | ||
1384 | ||
1385 | static void hwsim_send_nullfunc_ps(void *dat, u8 *mac, | |
1386 | struct ieee80211_vif *vif) | |
1387 | { | |
1388 | struct mac80211_hwsim_data *data = dat; | |
1389 | hwsim_send_nullfunc(data, mac, vif, 1); | |
1390 | } | |
1391 | ||
1392 | ||
1393 | static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac, | |
1394 | struct ieee80211_vif *vif) | |
1395 | { | |
1396 | struct mac80211_hwsim_data *data = dat; | |
1397 | hwsim_send_nullfunc(data, mac, vif, 0); | |
1398 | } | |
1399 | ||
1400 | ||
1401 | static int hwsim_fops_ps_read(void *dat, u64 *val) | |
1402 | { | |
1403 | struct mac80211_hwsim_data *data = dat; | |
1404 | *val = data->ps; | |
1405 | return 0; | |
1406 | } | |
1407 | ||
1408 | static int hwsim_fops_ps_write(void *dat, u64 val) | |
1409 | { | |
1410 | struct mac80211_hwsim_data *data = dat; | |
1411 | enum ps_mode old_ps; | |
1412 | ||
1413 | if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL && | |
1414 | val != PS_MANUAL_POLL) | |
1415 | return -EINVAL; | |
1416 | ||
1417 | old_ps = data->ps; | |
1418 | data->ps = val; | |
1419 | ||
1420 | if (val == PS_MANUAL_POLL) { | |
1421 | ieee80211_iterate_active_interfaces(data->hw, | |
1422 | hwsim_send_ps_poll, data); | |
1423 | data->ps_poll_pending = true; | |
1424 | } else if (old_ps == PS_DISABLED && val != PS_DISABLED) { | |
1425 | ieee80211_iterate_active_interfaces(data->hw, | |
1426 | hwsim_send_nullfunc_ps, | |
1427 | data); | |
1428 | } else if (old_ps != PS_DISABLED && val == PS_DISABLED) { | |
1429 | ieee80211_iterate_active_interfaces(data->hw, | |
1430 | hwsim_send_nullfunc_no_ps, | |
1431 | data); | |
1432 | } | |
1433 | ||
1434 | return 0; | |
1435 | } | |
1436 | ||
1437 | DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write, | |
1438 | "%llu\n"); | |
1439 | ||
1440 | ||
73606d00 DW |
1441 | static int hwsim_fops_group_read(void *dat, u64 *val) |
1442 | { | |
1443 | struct mac80211_hwsim_data *data = dat; | |
1444 | *val = data->group; | |
1445 | return 0; | |
1446 | } | |
1447 | ||
1448 | static int hwsim_fops_group_write(void *dat, u64 val) | |
1449 | { | |
1450 | struct mac80211_hwsim_data *data = dat; | |
1451 | data->group = val; | |
1452 | return 0; | |
1453 | } | |
1454 | ||
1455 | DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group, | |
1456 | hwsim_fops_group_read, hwsim_fops_group_write, | |
1457 | "%llx\n"); | |
1458 | ||
f483ad25 | 1459 | static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr( |
7882513b JL |
1460 | struct mac_address *addr) |
1461 | { | |
1462 | struct mac80211_hwsim_data *data; | |
1463 | bool _found = false; | |
1464 | ||
1465 | spin_lock_bh(&hwsim_radio_lock); | |
1466 | list_for_each_entry(data, &hwsim_radios, list) { | |
1467 | if (memcmp(data->addresses[1].addr, addr, | |
1468 | sizeof(struct mac_address)) == 0) { | |
1469 | _found = true; | |
1470 | break; | |
1471 | } | |
1472 | } | |
1473 | spin_unlock_bh(&hwsim_radio_lock); | |
1474 | ||
1475 | if (!_found) | |
1476 | return NULL; | |
1477 | ||
1478 | return data; | |
1479 | } | |
1480 | ||
1481 | static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2, | |
1482 | struct genl_info *info) | |
1483 | { | |
1484 | ||
1485 | struct ieee80211_hdr *hdr; | |
1486 | struct mac80211_hwsim_data *data2; | |
1487 | struct ieee80211_tx_info *txi; | |
1488 | struct hwsim_tx_rate *tx_attempts; | |
1489 | struct sk_buff __user *ret_skb; | |
1490 | struct sk_buff *skb, *tmp; | |
1491 | struct mac_address *src; | |
1492 | unsigned int hwsim_flags; | |
1493 | ||
1494 | int i; | |
1495 | bool found = false; | |
1496 | ||
1497 | if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] || | |
1498 | !info->attrs[HWSIM_ATTR_FLAGS] || | |
1499 | !info->attrs[HWSIM_ATTR_COOKIE] || | |
1500 | !info->attrs[HWSIM_ATTR_TX_INFO]) | |
1501 | goto out; | |
1502 | ||
1503 | src = (struct mac_address *)nla_data( | |
1504 | info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]); | |
1505 | hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]); | |
1506 | ||
1507 | ret_skb = (struct sk_buff __user *) | |
1508 | (unsigned long) nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]); | |
1509 | ||
1510 | data2 = get_hwsim_data_ref_from_addr(src); | |
1511 | ||
1512 | if (data2 == NULL) | |
1513 | goto out; | |
1514 | ||
1515 | /* look for the skb matching the cookie passed back from user */ | |
1516 | skb_queue_walk_safe(&data2->pending, skb, tmp) { | |
1517 | if (skb == ret_skb) { | |
1518 | skb_unlink(skb, &data2->pending); | |
1519 | found = true; | |
1520 | break; | |
1521 | } | |
1522 | } | |
1523 | ||
1524 | /* not found */ | |
1525 | if (!found) | |
1526 | goto out; | |
1527 | ||
1528 | /* Tx info received because the frame was broadcasted on user space, | |
1529 | so we get all the necessary info: tx attempts and skb control buff */ | |
1530 | ||
1531 | tx_attempts = (struct hwsim_tx_rate *)nla_data( | |
1532 | info->attrs[HWSIM_ATTR_TX_INFO]); | |
1533 | ||
1534 | /* now send back TX status */ | |
1535 | txi = IEEE80211_SKB_CB(skb); | |
1536 | ||
1537 | if (txi->control.vif) | |
1538 | hwsim_check_magic(txi->control.vif); | |
1539 | if (txi->control.sta) | |
1540 | hwsim_check_sta_magic(txi->control.sta); | |
1541 | ||
1542 | ieee80211_tx_info_clear_status(txi); | |
1543 | ||
1544 | for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) { | |
1545 | txi->status.rates[i].idx = tx_attempts[i].idx; | |
1546 | txi->status.rates[i].count = tx_attempts[i].count; | |
1547 | /*txi->status.rates[i].flags = 0;*/ | |
1548 | } | |
1549 | ||
1550 | txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]); | |
1551 | ||
1552 | if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) && | |
1553 | (hwsim_flags & HWSIM_TX_STAT_ACK)) { | |
1554 | if (skb->len >= 16) { | |
1555 | hdr = (struct ieee80211_hdr *) skb->data; | |
1556 | mac80211_hwsim_monitor_ack(data2->hw, hdr->addr2); | |
1557 | } | |
06cf5c4c | 1558 | txi->flags |= IEEE80211_TX_STAT_ACK; |
7882513b JL |
1559 | } |
1560 | ieee80211_tx_status_irqsafe(data2->hw, skb); | |
1561 | return 0; | |
1562 | out: | |
1563 | return -EINVAL; | |
1564 | ||
1565 | } | |
1566 | ||
1567 | static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2, | |
1568 | struct genl_info *info) | |
1569 | { | |
1570 | ||
1571 | struct mac80211_hwsim_data *data2; | |
1572 | struct ieee80211_rx_status rx_status; | |
1573 | struct mac_address *dst; | |
1574 | int frame_data_len; | |
1575 | char *frame_data; | |
1576 | struct sk_buff *skb = NULL; | |
1577 | ||
1578 | if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] || | |
1579 | !info->attrs[HWSIM_ATTR_FRAME] || | |
1580 | !info->attrs[HWSIM_ATTR_RX_RATE] || | |
1581 | !info->attrs[HWSIM_ATTR_SIGNAL]) | |
1582 | goto out; | |
1583 | ||
1584 | dst = (struct mac_address *)nla_data( | |
1585 | info->attrs[HWSIM_ATTR_ADDR_RECEIVER]); | |
1586 | ||
1587 | frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]); | |
1588 | frame_data = (char *)nla_data(info->attrs[HWSIM_ATTR_FRAME]); | |
1589 | ||
1590 | /* Allocate new skb here */ | |
1591 | skb = alloc_skb(frame_data_len, GFP_KERNEL); | |
1592 | if (skb == NULL) | |
1593 | goto err; | |
1594 | ||
1595 | if (frame_data_len <= IEEE80211_MAX_DATA_LEN) { | |
1596 | /* Copy the data */ | |
1597 | memcpy(skb_put(skb, frame_data_len), frame_data, | |
1598 | frame_data_len); | |
1599 | } else | |
1600 | goto err; | |
1601 | ||
1602 | data2 = get_hwsim_data_ref_from_addr(dst); | |
1603 | ||
1604 | if (data2 == NULL) | |
1605 | goto out; | |
1606 | ||
1607 | /* check if radio is configured properly */ | |
1608 | ||
1609 | if (data2->idle || !data2->started || !data2->channel) | |
1610 | goto out; | |
1611 | ||
1612 | /*A frame is received from user space*/ | |
1613 | memset(&rx_status, 0, sizeof(rx_status)); | |
1614 | rx_status.freq = data2->channel->center_freq; | |
1615 | rx_status.band = data2->channel->band; | |
1616 | rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]); | |
1617 | rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]); | |
1618 | ||
1619 | memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status)); | |
1620 | ieee80211_rx_irqsafe(data2->hw, skb); | |
1621 | ||
1622 | return 0; | |
1623 | err: | |
c393862f | 1624 | printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__); |
7882513b JL |
1625 | goto out; |
1626 | out: | |
1627 | dev_kfree_skb(skb); | |
1628 | return -EINVAL; | |
1629 | } | |
1630 | ||
1631 | static int hwsim_register_received_nl(struct sk_buff *skb_2, | |
1632 | struct genl_info *info) | |
1633 | { | |
1634 | if (info == NULL) | |
1635 | goto out; | |
1636 | ||
1637 | wmediumd_pid = info->snd_pid; | |
1638 | ||
1639 | printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, " | |
c143189a | 1640 | "switching to wmediumd mode with pid %d\n", info->snd_pid); |
7882513b JL |
1641 | |
1642 | return 0; | |
1643 | out: | |
c393862f | 1644 | printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__); |
7882513b JL |
1645 | return -EINVAL; |
1646 | } | |
1647 | ||
1648 | /* Generic Netlink operations array */ | |
1649 | static struct genl_ops hwsim_ops[] = { | |
1650 | { | |
1651 | .cmd = HWSIM_CMD_REGISTER, | |
1652 | .policy = hwsim_genl_policy, | |
1653 | .doit = hwsim_register_received_nl, | |
1654 | .flags = GENL_ADMIN_PERM, | |
1655 | }, | |
1656 | { | |
1657 | .cmd = HWSIM_CMD_FRAME, | |
1658 | .policy = hwsim_genl_policy, | |
1659 | .doit = hwsim_cloned_frame_received_nl, | |
1660 | }, | |
1661 | { | |
1662 | .cmd = HWSIM_CMD_TX_INFO_FRAME, | |
1663 | .policy = hwsim_genl_policy, | |
1664 | .doit = hwsim_tx_info_frame_received_nl, | |
1665 | }, | |
1666 | }; | |
1667 | ||
1668 | static int mac80211_hwsim_netlink_notify(struct notifier_block *nb, | |
1669 | unsigned long state, | |
1670 | void *_notify) | |
1671 | { | |
1672 | struct netlink_notify *notify = _notify; | |
1673 | ||
1674 | if (state != NETLINK_URELEASE) | |
1675 | return NOTIFY_DONE; | |
1676 | ||
1677 | if (notify->pid == wmediumd_pid) { | |
1678 | printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink" | |
1679 | " socket, switching to perfect channel medium\n"); | |
1680 | wmediumd_pid = 0; | |
1681 | } | |
1682 | return NOTIFY_DONE; | |
1683 | ||
1684 | } | |
1685 | ||
1686 | static struct notifier_block hwsim_netlink_notifier = { | |
1687 | .notifier_call = mac80211_hwsim_netlink_notify, | |
1688 | }; | |
1689 | ||
1690 | static int hwsim_init_netlink(void) | |
1691 | { | |
1692 | int rc; | |
1693 | printk(KERN_INFO "mac80211_hwsim: initializing netlink\n"); | |
1694 | ||
7882513b JL |
1695 | rc = genl_register_family_with_ops(&hwsim_genl_family, |
1696 | hwsim_ops, ARRAY_SIZE(hwsim_ops)); | |
1697 | if (rc) | |
1698 | goto failure; | |
1699 | ||
1700 | rc = netlink_register_notifier(&hwsim_netlink_notifier); | |
1701 | if (rc) | |
1702 | goto failure; | |
1703 | ||
1704 | return 0; | |
1705 | ||
1706 | failure: | |
c393862f | 1707 | printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__); |
7882513b JL |
1708 | return -EINVAL; |
1709 | } | |
1710 | ||
1711 | static void hwsim_exit_netlink(void) | |
1712 | { | |
1713 | int ret; | |
1714 | ||
1715 | printk(KERN_INFO "mac80211_hwsim: closing netlink\n"); | |
1716 | /* unregister the notifier */ | |
1717 | netlink_unregister_notifier(&hwsim_netlink_notifier); | |
1718 | /* unregister the family */ | |
1719 | ret = genl_unregister_family(&hwsim_genl_family); | |
1720 | if (ret) | |
1721 | printk(KERN_DEBUG "mac80211_hwsim: " | |
1722 | "unregister family %i\n", ret); | |
1723 | } | |
1724 | ||
1ae2fc25 JB |
1725 | static const struct ieee80211_iface_limit hwsim_if_limits[] = { |
1726 | { .max = 1, .types = BIT(NL80211_IFTYPE_ADHOC) }, | |
1727 | { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) | | |
1728 | BIT(NL80211_IFTYPE_P2P_CLIENT) | | |
1729 | #ifdef CONFIG_MAC80211_MESH | |
1730 | BIT(NL80211_IFTYPE_MESH_POINT) | | |
1731 | #endif | |
1732 | BIT(NL80211_IFTYPE_AP) | | |
1733 | BIT(NL80211_IFTYPE_P2P_GO) }, | |
1734 | }; | |
1735 | ||
1736 | static const struct ieee80211_iface_combination hwsim_if_comb = { | |
1737 | .limits = hwsim_if_limits, | |
1738 | .n_limits = ARRAY_SIZE(hwsim_if_limits), | |
1739 | .max_interfaces = 2048, | |
1740 | .num_different_channels = 1, | |
1741 | }; | |
1742 | ||
acc1e7a3 JM |
1743 | static int __init init_mac80211_hwsim(void) |
1744 | { | |
1745 | int i, err = 0; | |
1746 | u8 addr[ETH_ALEN]; | |
1747 | struct mac80211_hwsim_data *data; | |
1748 | struct ieee80211_hw *hw; | |
22cad735 | 1749 | enum ieee80211_band band; |
acc1e7a3 | 1750 | |
0e057d73 | 1751 | if (radios < 1 || radios > 100) |
acc1e7a3 JM |
1752 | return -EINVAL; |
1753 | ||
f74cb0f7 | 1754 | if (fake_hw_scan) { |
69068036 | 1755 | mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan; |
f74cb0f7 LR |
1756 | mac80211_hwsim_ops.sw_scan_start = NULL; |
1757 | mac80211_hwsim_ops.sw_scan_complete = NULL; | |
1758 | } | |
69068036 | 1759 | |
0e057d73 JB |
1760 | spin_lock_init(&hwsim_radio_lock); |
1761 | INIT_LIST_HEAD(&hwsim_radios); | |
acc1e7a3 JM |
1762 | |
1763 | hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim"); | |
0e057d73 | 1764 | if (IS_ERR(hwsim_class)) |
acc1e7a3 | 1765 | return PTR_ERR(hwsim_class); |
acc1e7a3 JM |
1766 | |
1767 | memset(addr, 0, ETH_ALEN); | |
1768 | addr[0] = 0x02; | |
1769 | ||
0e057d73 | 1770 | for (i = 0; i < radios; i++) { |
acc1e7a3 JM |
1771 | printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n", |
1772 | i); | |
1773 | hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops); | |
0e057d73 | 1774 | if (!hw) { |
acc1e7a3 JM |
1775 | printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw " |
1776 | "failed\n"); | |
1777 | err = -ENOMEM; | |
1778 | goto failed; | |
1779 | } | |
acc1e7a3 | 1780 | data = hw->priv; |
0e057d73 JB |
1781 | data->hw = hw; |
1782 | ||
6e05d6c4 GKH |
1783 | data->dev = device_create(hwsim_class, NULL, 0, hw, |
1784 | "hwsim%d", i); | |
acc1e7a3 | 1785 | if (IS_ERR(data->dev)) { |
e800f17c | 1786 | printk(KERN_DEBUG |
6e05d6c4 | 1787 | "mac80211_hwsim: device_create " |
acc1e7a3 JM |
1788 | "failed (%ld)\n", PTR_ERR(data->dev)); |
1789 | err = -ENOMEM; | |
3a33cc10 | 1790 | goto failed_drvdata; |
acc1e7a3 JM |
1791 | } |
1792 | data->dev->driver = &mac80211_hwsim_driver; | |
7882513b | 1793 | skb_queue_head_init(&data->pending); |
acc1e7a3 JM |
1794 | |
1795 | SET_IEEE80211_DEV(hw, data->dev); | |
1796 | addr[3] = i >> 8; | |
1797 | addr[4] = i; | |
ef15aac6 JB |
1798 | memcpy(data->addresses[0].addr, addr, ETH_ALEN); |
1799 | memcpy(data->addresses[1].addr, addr, ETH_ALEN); | |
1800 | data->addresses[1].addr[0] |= 0x40; | |
1801 | hw->wiphy->n_addresses = 2; | |
1802 | hw->wiphy->addresses = data->addresses; | |
acc1e7a3 | 1803 | |
1ae2fc25 JB |
1804 | hw->wiphy->iface_combinations = &hwsim_if_comb; |
1805 | hw->wiphy->n_iface_combinations = 1; | |
1806 | ||
8223d2f5 JB |
1807 | if (fake_hw_scan) { |
1808 | hw->wiphy->max_scan_ssids = 255; | |
1809 | hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN; | |
1810 | } | |
1811 | ||
acc1e7a3 | 1812 | hw->channel_change_time = 1; |
87e8b64e | 1813 | hw->queues = 4; |
f59ac048 LR |
1814 | hw->wiphy->interface_modes = |
1815 | BIT(NL80211_IFTYPE_STATION) | | |
55b39619 | 1816 | BIT(NL80211_IFTYPE_AP) | |
2ca27bcf JB |
1817 | BIT(NL80211_IFTYPE_P2P_CLIENT) | |
1818 | BIT(NL80211_IFTYPE_P2P_GO) | | |
2b2d7795 | 1819 | BIT(NL80211_IFTYPE_ADHOC) | |
55b39619 | 1820 | BIT(NL80211_IFTYPE_MESH_POINT); |
acc1e7a3 | 1821 | |
4b14c96d | 1822 | hw->flags = IEEE80211_HW_MFP_CAPABLE | |
0f78231b JB |
1823 | IEEE80211_HW_SIGNAL_DBM | |
1824 | IEEE80211_HW_SUPPORTS_STATIC_SMPS | | |
a75b4363 | 1825 | IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS | |
4b6f1dd6 JB |
1826 | IEEE80211_HW_AMPDU_AGGREGATION | |
1827 | IEEE80211_HW_WANT_MONITOR_VIF; | |
fa77533e | 1828 | |
81ddbb5c JB |
1829 | hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS | |
1830 | WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; | |
43bc3e89 | 1831 | |
8aa21e6f JB |
1832 | /* ask mac80211 to reserve space for magic */ |
1833 | hw->vif_data_size = sizeof(struct hwsim_vif_priv); | |
81c06523 | 1834 | hw->sta_data_size = sizeof(struct hwsim_sta_priv); |
8aa21e6f | 1835 | |
22cad735 LR |
1836 | memcpy(data->channels_2ghz, hwsim_channels_2ghz, |
1837 | sizeof(hwsim_channels_2ghz)); | |
1838 | memcpy(data->channels_5ghz, hwsim_channels_5ghz, | |
1839 | sizeof(hwsim_channels_5ghz)); | |
acc1e7a3 | 1840 | memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates)); |
22cad735 LR |
1841 | |
1842 | for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) { | |
1843 | struct ieee80211_supported_band *sband = &data->bands[band]; | |
1844 | switch (band) { | |
1845 | case IEEE80211_BAND_2GHZ: | |
1846 | sband->channels = data->channels_2ghz; | |
1847 | sband->n_channels = | |
1848 | ARRAY_SIZE(hwsim_channels_2ghz); | |
d130eb49 JB |
1849 | sband->bitrates = data->rates; |
1850 | sband->n_bitrates = ARRAY_SIZE(hwsim_rates); | |
22cad735 LR |
1851 | break; |
1852 | case IEEE80211_BAND_5GHZ: | |
1853 | sband->channels = data->channels_5ghz; | |
1854 | sband->n_channels = | |
1855 | ARRAY_SIZE(hwsim_channels_5ghz); | |
d130eb49 JB |
1856 | sband->bitrates = data->rates + 4; |
1857 | sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4; | |
22cad735 LR |
1858 | break; |
1859 | default: | |
1860 | break; | |
1861 | } | |
1862 | ||
22cad735 LR |
1863 | sband->ht_cap.ht_supported = true; |
1864 | sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 | | |
1865 | IEEE80211_HT_CAP_GRN_FLD | | |
1866 | IEEE80211_HT_CAP_SGI_40 | | |
1867 | IEEE80211_HT_CAP_DSSSCCK40; | |
1868 | sband->ht_cap.ampdu_factor = 0x3; | |
1869 | sband->ht_cap.ampdu_density = 0x6; | |
1870 | memset(&sband->ht_cap.mcs, 0, | |
1871 | sizeof(sband->ht_cap.mcs)); | |
1872 | sband->ht_cap.mcs.rx_mask[0] = 0xff; | |
1873 | sband->ht_cap.mcs.rx_mask[1] = 0xff; | |
1874 | sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; | |
1875 | ||
1876 | hw->wiphy->bands[band] = sband; | |
1877 | } | |
73606d00 DW |
1878 | /* By default all radios are belonging to the first group */ |
1879 | data->group = 1; | |
f74cb0f7 | 1880 | mutex_init(&data->mutex); |
acc1e7a3 | 1881 | |
7882513b JL |
1882 | /* Enable frame retransmissions for lossy channels */ |
1883 | hw->max_rates = 4; | |
1884 | hw->max_rate_tries = 11; | |
1885 | ||
4a5af9c2 LR |
1886 | /* Work to be done prior to ieee80211_register_hw() */ |
1887 | switch (regtest) { | |
1888 | case HWSIM_REGTEST_DISABLED: | |
1889 | case HWSIM_REGTEST_DRIVER_REG_FOLLOW: | |
1890 | case HWSIM_REGTEST_DRIVER_REG_ALL: | |
1891 | case HWSIM_REGTEST_DIFF_COUNTRY: | |
1892 | /* | |
1893 | * Nothing to be done for driver regulatory domain | |
1894 | * hints prior to ieee80211_register_hw() | |
1895 | */ | |
1896 | break; | |
1897 | case HWSIM_REGTEST_WORLD_ROAM: | |
1898 | if (i == 0) { | |
5be83de5 | 1899 | hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY; |
4a5af9c2 LR |
1900 | wiphy_apply_custom_regulatory(hw->wiphy, |
1901 | &hwsim_world_regdom_custom_01); | |
1902 | } | |
1903 | break; | |
1904 | case HWSIM_REGTEST_CUSTOM_WORLD: | |
5be83de5 | 1905 | hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY; |
4a5af9c2 LR |
1906 | wiphy_apply_custom_regulatory(hw->wiphy, |
1907 | &hwsim_world_regdom_custom_01); | |
1908 | break; | |
1909 | case HWSIM_REGTEST_CUSTOM_WORLD_2: | |
1910 | if (i == 0) { | |
5be83de5 | 1911 | hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY; |
4a5af9c2 LR |
1912 | wiphy_apply_custom_regulatory(hw->wiphy, |
1913 | &hwsim_world_regdom_custom_01); | |
1914 | } else if (i == 1) { | |
5be83de5 | 1915 | hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY; |
4a5af9c2 LR |
1916 | wiphy_apply_custom_regulatory(hw->wiphy, |
1917 | &hwsim_world_regdom_custom_02); | |
1918 | } | |
1919 | break; | |
1920 | case HWSIM_REGTEST_STRICT_ALL: | |
5be83de5 | 1921 | hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY; |
4a5af9c2 LR |
1922 | break; |
1923 | case HWSIM_REGTEST_STRICT_FOLLOW: | |
1924 | case HWSIM_REGTEST_STRICT_AND_DRIVER_REG: | |
1925 | if (i == 0) | |
5be83de5 | 1926 | hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY; |
4a5af9c2 LR |
1927 | break; |
1928 | case HWSIM_REGTEST_ALL: | |
1929 | if (i == 0) { | |
5be83de5 | 1930 | hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY; |
4a5af9c2 LR |
1931 | wiphy_apply_custom_regulatory(hw->wiphy, |
1932 | &hwsim_world_regdom_custom_01); | |
1933 | } else if (i == 1) { | |
5be83de5 | 1934 | hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY; |
4a5af9c2 LR |
1935 | wiphy_apply_custom_regulatory(hw->wiphy, |
1936 | &hwsim_world_regdom_custom_02); | |
1937 | } else if (i == 4) | |
5be83de5 | 1938 | hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY; |
4a5af9c2 LR |
1939 | break; |
1940 | default: | |
1941 | break; | |
1942 | } | |
1943 | ||
98dfaa57 LR |
1944 | /* give the regulatory workqueue a chance to run */ |
1945 | if (regtest) | |
1946 | schedule_timeout_interruptible(1); | |
acc1e7a3 JM |
1947 | err = ieee80211_register_hw(hw); |
1948 | if (err < 0) { | |
1949 | printk(KERN_DEBUG "mac80211_hwsim: " | |
1950 | "ieee80211_register_hw failed (%d)\n", err); | |
3a33cc10 | 1951 | goto failed_hw; |
acc1e7a3 JM |
1952 | } |
1953 | ||
4a5af9c2 LR |
1954 | /* Work to be done after to ieee80211_register_hw() */ |
1955 | switch (regtest) { | |
1956 | case HWSIM_REGTEST_WORLD_ROAM: | |
1957 | case HWSIM_REGTEST_DISABLED: | |
1958 | break; | |
1959 | case HWSIM_REGTEST_DRIVER_REG_FOLLOW: | |
1960 | if (!i) | |
1961 | regulatory_hint(hw->wiphy, hwsim_alpha2s[0]); | |
1962 | break; | |
1963 | case HWSIM_REGTEST_DRIVER_REG_ALL: | |
1964 | case HWSIM_REGTEST_STRICT_ALL: | |
1965 | regulatory_hint(hw->wiphy, hwsim_alpha2s[0]); | |
1966 | break; | |
1967 | case HWSIM_REGTEST_DIFF_COUNTRY: | |
1968 | if (i < ARRAY_SIZE(hwsim_alpha2s)) | |
1969 | regulatory_hint(hw->wiphy, hwsim_alpha2s[i]); | |
1970 | break; | |
1971 | case HWSIM_REGTEST_CUSTOM_WORLD: | |
1972 | case HWSIM_REGTEST_CUSTOM_WORLD_2: | |
1973 | /* | |
1974 | * Nothing to be done for custom world regulatory | |
1975 | * domains after to ieee80211_register_hw | |
1976 | */ | |
1977 | break; | |
1978 | case HWSIM_REGTEST_STRICT_FOLLOW: | |
1979 | if (i == 0) | |
1980 | regulatory_hint(hw->wiphy, hwsim_alpha2s[0]); | |
1981 | break; | |
1982 | case HWSIM_REGTEST_STRICT_AND_DRIVER_REG: | |
1983 | if (i == 0) | |
1984 | regulatory_hint(hw->wiphy, hwsim_alpha2s[0]); | |
1985 | else if (i == 1) | |
1986 | regulatory_hint(hw->wiphy, hwsim_alpha2s[1]); | |
1987 | break; | |
1988 | case HWSIM_REGTEST_ALL: | |
1989 | if (i == 2) | |
1990 | regulatory_hint(hw->wiphy, hwsim_alpha2s[0]); | |
1991 | else if (i == 3) | |
1992 | regulatory_hint(hw->wiphy, hwsim_alpha2s[1]); | |
1993 | else if (i == 4) | |
1994 | regulatory_hint(hw->wiphy, hwsim_alpha2s[2]); | |
1995 | break; | |
1996 | default: | |
1997 | break; | |
1998 | } | |
1999 | ||
c96c31e4 JP |
2000 | wiphy_debug(hw->wiphy, "hwaddr %pm registered\n", |
2001 | hw->wiphy->perm_addr); | |
acc1e7a3 | 2002 | |
fc6971d4 JM |
2003 | data->debugfs = debugfs_create_dir("hwsim", |
2004 | hw->wiphy->debugfsdir); | |
2005 | data->debugfs_ps = debugfs_create_file("ps", 0666, | |
2006 | data->debugfs, data, | |
2007 | &hwsim_fops_ps); | |
73606d00 DW |
2008 | data->debugfs_group = debugfs_create_file("group", 0666, |
2009 | data->debugfs, data, | |
2010 | &hwsim_fops_group); | |
fc6971d4 | 2011 | |
acc1e7a3 JM |
2012 | setup_timer(&data->beacon_timer, mac80211_hwsim_beacon, |
2013 | (unsigned long) hw); | |
0e057d73 JB |
2014 | |
2015 | list_add_tail(&data->list, &hwsim_radios); | |
acc1e7a3 JM |
2016 | } |
2017 | ||
2018 | hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup); | |
2019 | if (hwsim_mon == NULL) | |
2020 | goto failed; | |
2021 | ||
7882513b JL |
2022 | rtnl_lock(); |
2023 | ||
2024 | err = dev_alloc_name(hwsim_mon, hwsim_mon->name); | |
3a33cc10 | 2025 | if (err < 0) |
acc1e7a3 | 2026 | goto failed_mon; |
3a33cc10 | 2027 | |
7882513b JL |
2028 | |
2029 | err = register_netdevice(hwsim_mon); | |
2030 | if (err < 0) | |
2031 | goto failed_mon; | |
2032 | ||
2033 | rtnl_unlock(); | |
2034 | ||
2035 | err = hwsim_init_netlink(); | |
2036 | if (err < 0) | |
2037 | goto failed_nl; | |
2038 | ||
acc1e7a3 JM |
2039 | return 0; |
2040 | ||
7882513b JL |
2041 | failed_nl: |
2042 | printk(KERN_DEBUG "mac_80211_hwsim: failed initializing netlink\n"); | |
2043 | return err; | |
2044 | ||
acc1e7a3 JM |
2045 | failed_mon: |
2046 | rtnl_unlock(); | |
2047 | free_netdev(hwsim_mon); | |
3a33cc10 IS |
2048 | mac80211_hwsim_free(); |
2049 | return err; | |
acc1e7a3 | 2050 | |
3a33cc10 IS |
2051 | failed_hw: |
2052 | device_unregister(data->dev); | |
2053 | failed_drvdata: | |
2054 | ieee80211_free_hw(hw); | |
acc1e7a3 JM |
2055 | failed: |
2056 | mac80211_hwsim_free(); | |
2057 | return err; | |
2058 | } | |
2059 | ||
2060 | ||
2061 | static void __exit exit_mac80211_hwsim(void) | |
2062 | { | |
0e057d73 | 2063 | printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n"); |
acc1e7a3 | 2064 | |
7882513b JL |
2065 | hwsim_exit_netlink(); |
2066 | ||
acc1e7a3 | 2067 | mac80211_hwsim_free(); |
5d416351 | 2068 | unregister_netdev(hwsim_mon); |
acc1e7a3 JM |
2069 | } |
2070 | ||
2071 | ||
2072 | module_init(init_mac80211_hwsim); | |
2073 | module_exit(exit_mac80211_hwsim); |