1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211
4 * Copyright (c) 2008, Jouni Malinen <j@w1.fi>
5 * Copyright (c) 2011, Javier Lopez <jlopex@gmail.com>
6 * Copyright (c) 2016 - 2017 Intel Deutschland GmbH
7 * Copyright (C) 2018 - 2022 Intel Corporation
8 */
9
10 /*
11 * TODO:
12 * - Add TSF sync and fix IBSS beacon transmission by adding
13 * competition for "air time" at TBTT
14 * - RX filtering based on filter configuration (data->rx_filter)
15 */
16
17 #include <linux/list.h>
18 #include <linux/slab.h>
19 #include <linux/spinlock.h>
20 #include <net/dst.h>
21 #include <net/xfrm.h>
22 #include <net/mac80211.h>
23 #include <net/ieee80211_radiotap.h>
24 #include <linux/if_arp.h>
25 #include <linux/rtnetlink.h>
26 #include <linux/etherdevice.h>
27 #include <linux/platform_device.h>
28 #include <linux/debugfs.h>
29 #include <linux/module.h>
30 #include <linux/ktime.h>
31 #include <net/genetlink.h>
32 #include <net/net_namespace.h>
33 #include <net/netns/generic.h>
34 #include <linux/rhashtable.h>
35 #include <linux/nospec.h>
36 #include <linux/virtio.h>
37 #include <linux/virtio_ids.h>
38 #include <linux/virtio_config.h>
39 #include "mac80211_hwsim.h"
40
41 #define WARN_QUEUE 100
42 #define MAX_QUEUE 200
43
44 MODULE_AUTHOR("Jouni Malinen");
45 MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
46 MODULE_LICENSE("GPL");
47
48 static int radios = 2;
49 module_param(radios, int, 0444);
50 MODULE_PARM_DESC(radios, "Number of simulated radios");
51
52 static int channels = 1;
53 module_param(channels, int, 0444);
54 MODULE_PARM_DESC(channels, "Number of concurrent channels");
55
56 static bool paged_rx = false;
57 module_param(paged_rx, bool, 0644);
58 MODULE_PARM_DESC(paged_rx, "Use paged SKBs for RX instead of linear ones");
59
60 static bool rctbl = false;
61 module_param(rctbl, bool, 0444);
62 MODULE_PARM_DESC(rctbl, "Handle rate control table");
63
64 static bool support_p2p_device = true;
65 module_param(support_p2p_device, bool, 0444);
66 MODULE_PARM_DESC(support_p2p_device, "Support P2P-Device interface type");
67
68 static bool mlo;
69 module_param(mlo, bool, 0444);
70 MODULE_PARM_DESC(mlo, "Support MLO");
71
72 /**
73 * enum hwsim_regtest - the type of regulatory tests we offer
74 *
75 * These are the different values you can use for the regtest
76 * module parameter. This is useful to help test world roaming
77 * and the driver regulatory_hint() call and combinations of these.
78 * If you want to do specific alpha2 regulatory domain tests simply
79 * use the userspace regulatory request as that will be respected as
80 * well without the need of this module parameter. This is designed
81 * only for testing the driver regulatory request, world roaming
82 * and all possible combinations.
83 *
84 * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
85 * this is the default value.
86 * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
87 * hint, only one driver regulatory hint will be sent as such the
88 * secondary radios are expected to follow.
89 * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
90 * request with all radios reporting the same regulatory domain.
91 * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
92 * different regulatory domains requests. Expected behaviour is for
93 * an intersection to occur but each device will still use their
94 * respective regulatory requested domains. Subsequent radios will
95 * use the resulting intersection.
96 * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We accomplish
97 * this by using a custom beacon-capable regulatory domain for the first
98 * radio. All other device world roam.
99 * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
100 * domain requests. All radios will adhere to this custom world regulatory
101 * domain.
102 * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
103 * domain requests. The first radio will adhere to the first custom world
104 * regulatory domain, the second one to the second custom world regulatory
105 * domain. All other devices will world roam.
106 * @HWSIM_REGTEST_STRICT_FOLLOW: Used for testing strict regulatory domain
107 * settings, only the first radio will send a regulatory domain request
108 * and use strict settings. The rest of the radios are expected to follow.
109 * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
110 * settings. All radios will adhere to this.
111 * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
112 * domain settings, combined with secondary driver regulatory domain
113 * settings. The first radio will get a strict regulatory domain setting
114 * using the first driver regulatory request and the second radio will use
115 * non-strict settings using the second driver regulatory request. All
116 * other devices should follow the intersection created between the
117 * first two.
118 * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
119 * at least 6 radios for a complete test. We will test in this order:
120 * 1 - driver custom world regulatory domain
121 * 2 - second custom world regulatory domain
122 * 3 - first driver regulatory domain request
123 * 4 - second driver regulatory domain request
124 * 5 - strict regulatory domain settings using the third driver regulatory
125 * domain request
126 * 6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
127 * regulatory requests.
128 */
129 enum hwsim_regtest {
130 HWSIM_REGTEST_DISABLED = 0,
131 HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1,
132 HWSIM_REGTEST_DRIVER_REG_ALL = 2,
133 HWSIM_REGTEST_DIFF_COUNTRY = 3,
134 HWSIM_REGTEST_WORLD_ROAM = 4,
135 HWSIM_REGTEST_CUSTOM_WORLD = 5,
136 HWSIM_REGTEST_CUSTOM_WORLD_2 = 6,
137 HWSIM_REGTEST_STRICT_FOLLOW = 7,
138 HWSIM_REGTEST_STRICT_ALL = 8,
139 HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9,
140 HWSIM_REGTEST_ALL = 10,
141 };
142
143 /* Set to one of the HWSIM_REGTEST_* values above */
144 static int regtest = HWSIM_REGTEST_DISABLED;
145 module_param(regtest, int, 0444);
146 MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run");
147
148 static const char *hwsim_alpha2s[] = {
149 "FI",
150 "AL",
151 "US",
152 "DE",
153 "JP",
154 "AL",
155 };
156
157 static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = {
158 .n_reg_rules = 5,
159 .alpha2 = "99",
160 .reg_rules = {
161 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
162 REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
163 REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
164 REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
165 REG_RULE(5855-10, 5925+10, 40, 0, 33, 0),
166 }
167 };
168
169 static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = {
170 .n_reg_rules = 3,
171 .alpha2 = "99",
172 .reg_rules = {
173 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
174 REG_RULE(5725-10, 5850+10, 40, 0, 30,
175 NL80211_RRF_NO_IR),
176 REG_RULE(5855-10, 5925+10, 40, 0, 33, 0),
177 }
178 };
179
180 static const struct ieee80211_regdomain hwsim_world_regdom_custom_03 = {
181 .n_reg_rules = 6,
182 .alpha2 = "99",
183 .reg_rules = {
184 REG_RULE(2412 - 10, 2462 + 10, 40, 0, 20, 0),
185 REG_RULE(2484 - 10, 2484 + 10, 40, 0, 20, 0),
186 REG_RULE(5150 - 10, 5240 + 10, 40, 0, 30, 0),
187 REG_RULE(5745 - 10, 5825 + 10, 40, 0, 30, 0),
188 REG_RULE(5855 - 10, 5925 + 10, 40, 0, 33, 0),
189 REG_RULE(5955 - 10, 7125 + 10, 320, 0, 33, 0),
190 }
191 };
192
193 static const struct ieee80211_regdomain *hwsim_world_regdom_custom[] = {
194 &hwsim_world_regdom_custom_01,
195 &hwsim_world_regdom_custom_02,
196 &hwsim_world_regdom_custom_03,
197 };
198
199 struct hwsim_vif_priv {
200 u32 magic;
201 u8 bssid[ETH_ALEN];
202 bool assoc;
203 bool bcn_en;
204 u16 aid;
205 };
206
207 #define HWSIM_VIF_MAGIC 0x69537748
208
hwsim_check_magic(struct ieee80211_vif * vif)209 static inline void hwsim_check_magic(struct ieee80211_vif *vif)
210 {
211 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
212 WARN(vp->magic != HWSIM_VIF_MAGIC,
213 "Invalid VIF (%p) magic %#x, %pM, %d/%d\n",
214 vif, vp->magic, vif->addr, vif->type, vif->p2p);
215 }
216
hwsim_set_magic(struct ieee80211_vif * vif)217 static inline void hwsim_set_magic(struct ieee80211_vif *vif)
218 {
219 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
220 vp->magic = HWSIM_VIF_MAGIC;
221 }
222
hwsim_clear_magic(struct ieee80211_vif * vif)223 static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
224 {
225 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
226 vp->magic = 0;
227 }
228
229 struct hwsim_sta_priv {
230 u32 magic;
231 unsigned int last_link;
232 u16 active_links_rx;
233 };
234
235 #define HWSIM_STA_MAGIC 0x6d537749
236
hwsim_check_sta_magic(struct ieee80211_sta * sta)237 static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
238 {
239 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
240 WARN_ON(sp->magic != HWSIM_STA_MAGIC);
241 }
242
hwsim_set_sta_magic(struct ieee80211_sta * sta)243 static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
244 {
245 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
246 sp->magic = HWSIM_STA_MAGIC;
247 }
248
hwsim_clear_sta_magic(struct ieee80211_sta * sta)249 static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
250 {
251 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
252 sp->magic = 0;
253 }
254
255 struct hwsim_chanctx_priv {
256 u32 magic;
257 };
258
259 #define HWSIM_CHANCTX_MAGIC 0x6d53774a
260
hwsim_check_chanctx_magic(struct ieee80211_chanctx_conf * c)261 static inline void hwsim_check_chanctx_magic(struct ieee80211_chanctx_conf *c)
262 {
263 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
264 WARN_ON(cp->magic != HWSIM_CHANCTX_MAGIC);
265 }
266
hwsim_set_chanctx_magic(struct ieee80211_chanctx_conf * c)267 static inline void hwsim_set_chanctx_magic(struct ieee80211_chanctx_conf *c)
268 {
269 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
270 cp->magic = HWSIM_CHANCTX_MAGIC;
271 }
272
hwsim_clear_chanctx_magic(struct ieee80211_chanctx_conf * c)273 static inline void hwsim_clear_chanctx_magic(struct ieee80211_chanctx_conf *c)
274 {
275 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
276 cp->magic = 0;
277 }
278
279 static unsigned int hwsim_net_id;
280
281 static DEFINE_IDA(hwsim_netgroup_ida);
282
283 struct hwsim_net {
284 int netgroup;
285 u32 wmediumd;
286 };
287
hwsim_net_get_netgroup(struct net * net)288 static inline int hwsim_net_get_netgroup(struct net *net)
289 {
290 struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
291
292 return hwsim_net->netgroup;
293 }
294
hwsim_net_set_netgroup(struct net * net)295 static inline int hwsim_net_set_netgroup(struct net *net)
296 {
297 struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
298
299 hwsim_net->netgroup = ida_alloc(&hwsim_netgroup_ida, GFP_KERNEL);
300 return hwsim_net->netgroup >= 0 ? 0 : -ENOMEM;
301 }
302
hwsim_net_get_wmediumd(struct net * net)303 static inline u32 hwsim_net_get_wmediumd(struct net *net)
304 {
305 struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
306
307 return hwsim_net->wmediumd;
308 }
309
hwsim_net_set_wmediumd(struct net * net,u32 portid)310 static inline void hwsim_net_set_wmediumd(struct net *net, u32 portid)
311 {
312 struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
313
314 hwsim_net->wmediumd = portid;
315 }
316
317 static struct class *hwsim_class;
318
319 static struct net_device *hwsim_mon; /* global monitor netdev */
320
321 #define CHAN2G(_freq) { \
322 .band = NL80211_BAND_2GHZ, \
323 .center_freq = (_freq), \
324 .hw_value = (_freq), \
325 }
326
327 #define CHAN5G(_freq) { \
328 .band = NL80211_BAND_5GHZ, \
329 .center_freq = (_freq), \
330 .hw_value = (_freq), \
331 }
332
333 #define CHAN6G(_freq) { \
334 .band = NL80211_BAND_6GHZ, \
335 .center_freq = (_freq), \
336 .hw_value = (_freq), \
337 }
338
339 static const struct ieee80211_channel hwsim_channels_2ghz[] = {
340 CHAN2G(2412), /* Channel 1 */
341 CHAN2G(2417), /* Channel 2 */
342 CHAN2G(2422), /* Channel 3 */
343 CHAN2G(2427), /* Channel 4 */
344 CHAN2G(2432), /* Channel 5 */
345 CHAN2G(2437), /* Channel 6 */
346 CHAN2G(2442), /* Channel 7 */
347 CHAN2G(2447), /* Channel 8 */
348 CHAN2G(2452), /* Channel 9 */
349 CHAN2G(2457), /* Channel 10 */
350 CHAN2G(2462), /* Channel 11 */
351 CHAN2G(2467), /* Channel 12 */
352 CHAN2G(2472), /* Channel 13 */
353 CHAN2G(2484), /* Channel 14 */
354 };
355
356 static const struct ieee80211_channel hwsim_channels_5ghz[] = {
357 CHAN5G(5180), /* Channel 36 */
358 CHAN5G(5200), /* Channel 40 */
359 CHAN5G(5220), /* Channel 44 */
360 CHAN5G(5240), /* Channel 48 */
361
362 CHAN5G(5260), /* Channel 52 */
363 CHAN5G(5280), /* Channel 56 */
364 CHAN5G(5300), /* Channel 60 */
365 CHAN5G(5320), /* Channel 64 */
366
367 CHAN5G(5500), /* Channel 100 */
368 CHAN5G(5520), /* Channel 104 */
369 CHAN5G(5540), /* Channel 108 */
370 CHAN5G(5560), /* Channel 112 */
371 CHAN5G(5580), /* Channel 116 */
372 CHAN5G(5600), /* Channel 120 */
373 CHAN5G(5620), /* Channel 124 */
374 CHAN5G(5640), /* Channel 128 */
375 CHAN5G(5660), /* Channel 132 */
376 CHAN5G(5680), /* Channel 136 */
377 CHAN5G(5700), /* Channel 140 */
378
379 CHAN5G(5745), /* Channel 149 */
380 CHAN5G(5765), /* Channel 153 */
381 CHAN5G(5785), /* Channel 157 */
382 CHAN5G(5805), /* Channel 161 */
383 CHAN5G(5825), /* Channel 165 */
384 CHAN5G(5845), /* Channel 169 */
385
386 CHAN5G(5855), /* Channel 171 */
387 CHAN5G(5860), /* Channel 172 */
388 CHAN5G(5865), /* Channel 173 */
389 CHAN5G(5870), /* Channel 174 */
390
391 CHAN5G(5875), /* Channel 175 */
392 CHAN5G(5880), /* Channel 176 */
393 CHAN5G(5885), /* Channel 177 */
394 CHAN5G(5890), /* Channel 178 */
395 CHAN5G(5895), /* Channel 179 */
396 CHAN5G(5900), /* Channel 180 */
397 CHAN5G(5905), /* Channel 181 */
398
399 CHAN5G(5910), /* Channel 182 */
400 CHAN5G(5915), /* Channel 183 */
401 CHAN5G(5920), /* Channel 184 */
402 CHAN5G(5925), /* Channel 185 */
403 };
404
405 static const struct ieee80211_channel hwsim_channels_6ghz[] = {
406 CHAN6G(5955), /* Channel 1 */
407 CHAN6G(5975), /* Channel 5 */
408 CHAN6G(5995), /* Channel 9 */
409 CHAN6G(6015), /* Channel 13 */
410 CHAN6G(6035), /* Channel 17 */
411 CHAN6G(6055), /* Channel 21 */
412 CHAN6G(6075), /* Channel 25 */
413 CHAN6G(6095), /* Channel 29 */
414 CHAN6G(6115), /* Channel 33 */
415 CHAN6G(6135), /* Channel 37 */
416 CHAN6G(6155), /* Channel 41 */
417 CHAN6G(6175), /* Channel 45 */
418 CHAN6G(6195), /* Channel 49 */
419 CHAN6G(6215), /* Channel 53 */
420 CHAN6G(6235), /* Channel 57 */
421 CHAN6G(6255), /* Channel 61 */
422 CHAN6G(6275), /* Channel 65 */
423 CHAN6G(6295), /* Channel 69 */
424 CHAN6G(6315), /* Channel 73 */
425 CHAN6G(6335), /* Channel 77 */
426 CHAN6G(6355), /* Channel 81 */
427 CHAN6G(6375), /* Channel 85 */
428 CHAN6G(6395), /* Channel 89 */
429 CHAN6G(6415), /* Channel 93 */
430 CHAN6G(6435), /* Channel 97 */
431 CHAN6G(6455), /* Channel 181 */
432 CHAN6G(6475), /* Channel 105 */
433 CHAN6G(6495), /* Channel 109 */
434 CHAN6G(6515), /* Channel 113 */
435 CHAN6G(6535), /* Channel 117 */
436 CHAN6G(6555), /* Channel 121 */
437 CHAN6G(6575), /* Channel 125 */
438 CHAN6G(6595), /* Channel 129 */
439 CHAN6G(6615), /* Channel 133 */
440 CHAN6G(6635), /* Channel 137 */
441 CHAN6G(6655), /* Channel 141 */
442 CHAN6G(6675), /* Channel 145 */
443 CHAN6G(6695), /* Channel 149 */
444 CHAN6G(6715), /* Channel 153 */
445 CHAN6G(6735), /* Channel 157 */
446 CHAN6G(6755), /* Channel 161 */
447 CHAN6G(6775), /* Channel 165 */
448 CHAN6G(6795), /* Channel 169 */
449 CHAN6G(6815), /* Channel 173 */
450 CHAN6G(6835), /* Channel 177 */
451 CHAN6G(6855), /* Channel 181 */
452 CHAN6G(6875), /* Channel 185 */
453 CHAN6G(6895), /* Channel 189 */
454 CHAN6G(6915), /* Channel 193 */
455 CHAN6G(6935), /* Channel 197 */
456 CHAN6G(6955), /* Channel 201 */
457 CHAN6G(6975), /* Channel 205 */
458 CHAN6G(6995), /* Channel 209 */
459 CHAN6G(7015), /* Channel 213 */
460 CHAN6G(7035), /* Channel 217 */
461 CHAN6G(7055), /* Channel 221 */
462 CHAN6G(7075), /* Channel 225 */
463 CHAN6G(7095), /* Channel 229 */
464 CHAN6G(7115), /* Channel 233 */
465 };
466
467 #define NUM_S1G_CHANS_US 51
468 static struct ieee80211_channel hwsim_channels_s1g[NUM_S1G_CHANS_US];
469
470 static const struct ieee80211_sta_s1g_cap hwsim_s1g_cap = {
471 .s1g = true,
472 .cap = { S1G_CAP0_SGI_1MHZ | S1G_CAP0_SGI_2MHZ,
473 0,
474 0,
475 S1G_CAP3_MAX_MPDU_LEN,
476 0,
477 S1G_CAP5_AMPDU,
478 0,
479 S1G_CAP7_DUP_1MHZ,
480 S1G_CAP8_TWT_RESPOND | S1G_CAP8_TWT_REQUEST,
481 0},
482 .nss_mcs = { 0xfc | 1, /* MCS 7 for 1 SS */
483 /* RX Highest Supported Long GI Data Rate 0:7 */
484 0,
485 /* RX Highest Supported Long GI Data Rate 0:7 */
486 /* TX S1G MCS Map 0:6 */
487 0xfa,
488 /* TX S1G MCS Map :7 */
489 /* TX Highest Supported Long GI Data Rate 0:6 */
490 0x80,
491 /* TX Highest Supported Long GI Data Rate 7:8 */
492 /* Rx Single spatial stream and S1G-MCS Map for 1MHz */
493 /* Tx Single spatial stream and S1G-MCS Map for 1MHz */
494 0 },
495 };
496
hwsim_init_s1g_channels(struct ieee80211_channel * chans)497 static void hwsim_init_s1g_channels(struct ieee80211_channel *chans)
498 {
499 int ch, freq;
500
501 for (ch = 0; ch < NUM_S1G_CHANS_US; ch++) {
502 freq = 902000 + (ch + 1) * 500;
503 chans[ch].band = NL80211_BAND_S1GHZ;
504 chans[ch].center_freq = KHZ_TO_MHZ(freq);
505 chans[ch].freq_offset = freq % 1000;
506 chans[ch].hw_value = ch + 1;
507 }
508 }
509
510 static const struct ieee80211_rate hwsim_rates[] = {
511 { .bitrate = 10 },
512 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
513 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
514 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
515 { .bitrate = 60 },
516 { .bitrate = 90 },
517 { .bitrate = 120 },
518 { .bitrate = 180 },
519 { .bitrate = 240 },
520 { .bitrate = 360 },
521 { .bitrate = 480 },
522 { .bitrate = 540 }
523 };
524
525 #define DEFAULT_RX_RSSI -50
526
527 static const u32 hwsim_ciphers[] = {
528 WLAN_CIPHER_SUITE_WEP40,
529 WLAN_CIPHER_SUITE_WEP104,
530 WLAN_CIPHER_SUITE_TKIP,
531 WLAN_CIPHER_SUITE_CCMP,
532 WLAN_CIPHER_SUITE_CCMP_256,
533 WLAN_CIPHER_SUITE_GCMP,
534 WLAN_CIPHER_SUITE_GCMP_256,
535 WLAN_CIPHER_SUITE_AES_CMAC,
536 WLAN_CIPHER_SUITE_BIP_CMAC_256,
537 WLAN_CIPHER_SUITE_BIP_GMAC_128,
538 WLAN_CIPHER_SUITE_BIP_GMAC_256,
539 };
540
541 #define OUI_QCA 0x001374
542 #define QCA_NL80211_SUBCMD_TEST 1
543 enum qca_nl80211_vendor_subcmds {
544 QCA_WLAN_VENDOR_ATTR_TEST = 8,
545 QCA_WLAN_VENDOR_ATTR_MAX = QCA_WLAN_VENDOR_ATTR_TEST
546 };
547
548 static const struct nla_policy
549 hwsim_vendor_test_policy[QCA_WLAN_VENDOR_ATTR_MAX + 1] = {
550 [QCA_WLAN_VENDOR_ATTR_MAX] = { .type = NLA_U32 },
551 };
552
mac80211_hwsim_vendor_cmd_test(struct wiphy * wiphy,struct wireless_dev * wdev,const void * data,int data_len)553 static int mac80211_hwsim_vendor_cmd_test(struct wiphy *wiphy,
554 struct wireless_dev *wdev,
555 const void *data, int data_len)
556 {
557 struct sk_buff *skb;
558 struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_MAX + 1];
559 int err;
560 u32 val;
561
562 err = nla_parse_deprecated(tb, QCA_WLAN_VENDOR_ATTR_MAX, data,
563 data_len, hwsim_vendor_test_policy, NULL);
564 if (err)
565 return err;
566 if (!tb[QCA_WLAN_VENDOR_ATTR_TEST])
567 return -EINVAL;
568 val = nla_get_u32(tb[QCA_WLAN_VENDOR_ATTR_TEST]);
569 wiphy_dbg(wiphy, "%s: test=%u\n", __func__, val);
570
571 /* Send a vendor event as a test. Note that this would not normally be
572 * done within a command handler, but rather, based on some other
573 * trigger. For simplicity, this command is used to trigger the event
574 * here.
575 *
576 * event_idx = 0 (index in mac80211_hwsim_vendor_commands)
577 */
578 skb = cfg80211_vendor_event_alloc(wiphy, wdev, 100, 0, GFP_KERNEL);
579 if (skb) {
580 /* skb_put() or nla_put() will fill up data within
581 * NL80211_ATTR_VENDOR_DATA.
582 */
583
584 /* Add vendor data */
585 nla_put_u32(skb, QCA_WLAN_VENDOR_ATTR_TEST, val + 1);
586
587 /* Send the event - this will call nla_nest_end() */
588 cfg80211_vendor_event(skb, GFP_KERNEL);
589 }
590
591 /* Send a response to the command */
592 skb = cfg80211_vendor_cmd_alloc_reply_skb(wiphy, 10);
593 if (!skb)
594 return -ENOMEM;
595
596 /* skb_put() or nla_put() will fill up data within
597 * NL80211_ATTR_VENDOR_DATA
598 */
599 nla_put_u32(skb, QCA_WLAN_VENDOR_ATTR_TEST, val + 2);
600
601 return cfg80211_vendor_cmd_reply(skb);
602 }
603
604 static struct wiphy_vendor_command mac80211_hwsim_vendor_commands[] = {
605 {
606 .info = { .vendor_id = OUI_QCA,
607 .subcmd = QCA_NL80211_SUBCMD_TEST },
608 .flags = WIPHY_VENDOR_CMD_NEED_NETDEV,
609 .doit = mac80211_hwsim_vendor_cmd_test,
610 .policy = hwsim_vendor_test_policy,
611 .maxattr = QCA_WLAN_VENDOR_ATTR_MAX,
612 }
613 };
614
615 /* Advertise support vendor specific events */
616 static const struct nl80211_vendor_cmd_info mac80211_hwsim_vendor_events[] = {
617 { .vendor_id = OUI_QCA, .subcmd = 1 },
618 };
619
620 static DEFINE_SPINLOCK(hwsim_radio_lock);
621 static LIST_HEAD(hwsim_radios);
622 static struct rhashtable hwsim_radios_rht;
623 static int hwsim_radio_idx;
624 static int hwsim_radios_generation = 1;
625
626 static struct platform_driver mac80211_hwsim_driver = {
627 .driver = {
628 .name = "mac80211_hwsim",
629 },
630 };
631
632 struct mac80211_hwsim_link_data {
633 u32 link_id;
634 u64 beacon_int /* beacon interval in us */;
635 struct hrtimer beacon_timer;
636 };
637
638 struct mac80211_hwsim_data {
639 struct list_head list;
640 struct rhash_head rht;
641 struct ieee80211_hw *hw;
642 struct device *dev;
643 struct ieee80211_supported_band bands[NUM_NL80211_BANDS];
644 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
645 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
646 struct ieee80211_channel channels_6ghz[ARRAY_SIZE(hwsim_channels_6ghz)];
647 struct ieee80211_channel channels_s1g[ARRAY_SIZE(hwsim_channels_s1g)];
648 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
649 struct ieee80211_iface_combination if_combination;
650 struct ieee80211_iface_limit if_limits[3];
651 int n_if_limits;
652
653 u32 ciphers[ARRAY_SIZE(hwsim_ciphers)];
654
655 struct mac_address addresses[2];
656 int channels, idx;
657 bool use_chanctx;
658 bool destroy_on_close;
659 u32 portid;
660 char alpha2[2];
661 const struct ieee80211_regdomain *regd;
662
663 struct ieee80211_channel *tmp_chan;
664 struct ieee80211_channel *roc_chan;
665 u32 roc_duration;
666 struct delayed_work roc_start;
667 struct delayed_work roc_done;
668 struct delayed_work hw_scan;
669 struct cfg80211_scan_request *hw_scan_request;
670 struct ieee80211_vif *hw_scan_vif;
671 int scan_chan_idx;
672 u8 scan_addr[ETH_ALEN];
673 struct {
674 struct ieee80211_channel *channel;
675 unsigned long next_start, start, end;
676 } survey_data[ARRAY_SIZE(hwsim_channels_2ghz) +
677 ARRAY_SIZE(hwsim_channels_5ghz) +
678 ARRAY_SIZE(hwsim_channels_6ghz)];
679
680 struct ieee80211_channel *channel;
681 enum nl80211_chan_width bw;
682 unsigned int rx_filter;
683 bool started, idle, scanning;
684 struct mutex mutex;
685 enum ps_mode {
686 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
687 } ps;
688 bool ps_poll_pending;
689 struct dentry *debugfs;
690
691 atomic_t pending_cookie;
692 struct sk_buff_head pending; /* packets pending */
693 /*
694 * Only radios in the same group can communicate together (the
695 * channel has to match too). Each bit represents a group. A
696 * radio can be in more than one group.
697 */
698 u64 group;
699
700 /* group shared by radios created in the same netns */
701 int netgroup;
702 /* wmediumd portid responsible for netgroup of this radio */
703 u32 wmediumd;
704
705 /* difference between this hw's clock and the real clock, in usecs */
706 s64 tsf_offset;
707 s64 bcn_delta;
708 /* absolute beacon transmission time. Used to cover up "tx" delay. */
709 u64 abs_bcn_ts;
710
711 /* Stats */
712 u64 tx_pkts;
713 u64 rx_pkts;
714 u64 tx_bytes;
715 u64 rx_bytes;
716 u64 tx_dropped;
717 u64 tx_failed;
718
719 /* RSSI in rx status of the receiver */
720 int rx_rssi;
721
722 struct mac80211_hwsim_link_data link_data[IEEE80211_MLD_MAX_NUM_LINKS];
723 };
724
725 static const struct rhashtable_params hwsim_rht_params = {
726 .nelem_hint = 2,
727 .automatic_shrinking = true,
728 .key_len = ETH_ALEN,
729 .key_offset = offsetof(struct mac80211_hwsim_data, addresses[1]),
730 .head_offset = offsetof(struct mac80211_hwsim_data, rht),
731 };
732
733 struct hwsim_radiotap_hdr {
734 struct ieee80211_radiotap_header hdr;
735 __le64 rt_tsft;
736 u8 rt_flags;
737 u8 rt_rate;
738 __le16 rt_channel;
739 __le16 rt_chbitmask;
740 } __packed;
741
742 struct hwsim_radiotap_ack_hdr {
743 struct ieee80211_radiotap_header hdr;
744 u8 rt_flags;
745 u8 pad;
746 __le16 rt_channel;
747 __le16 rt_chbitmask;
748 } __packed;
749
750 /* MAC80211_HWSIM netlink family */
751 static struct genl_family hwsim_genl_family;
752
753 enum hwsim_multicast_groups {
754 HWSIM_MCGRP_CONFIG,
755 };
756
757 static const struct genl_multicast_group hwsim_mcgrps[] = {
758 [HWSIM_MCGRP_CONFIG] = { .name = "config", },
759 };
760
761 /* MAC80211_HWSIM netlink policy */
762
763 static const struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
764 [HWSIM_ATTR_ADDR_RECEIVER] = NLA_POLICY_ETH_ADDR_COMPAT,
765 [HWSIM_ATTR_ADDR_TRANSMITTER] = NLA_POLICY_ETH_ADDR_COMPAT,
766 [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
767 .len = IEEE80211_MAX_DATA_LEN },
768 [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
769 [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
770 [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
771 [HWSIM_ATTR_TX_INFO] = { .type = NLA_BINARY,
772 .len = IEEE80211_TX_MAX_RATES *
773 sizeof(struct hwsim_tx_rate)},
774 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
775 [HWSIM_ATTR_CHANNELS] = { .type = NLA_U32 },
776 [HWSIM_ATTR_RADIO_ID] = { .type = NLA_U32 },
777 [HWSIM_ATTR_REG_HINT_ALPHA2] = { .type = NLA_STRING, .len = 2 },
778 [HWSIM_ATTR_REG_CUSTOM_REG] = { .type = NLA_U32 },
779 [HWSIM_ATTR_REG_STRICT_REG] = { .type = NLA_FLAG },
780 [HWSIM_ATTR_SUPPORT_P2P_DEVICE] = { .type = NLA_FLAG },
781 [HWSIM_ATTR_USE_CHANCTX] = { .type = NLA_FLAG },
782 [HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE] = { .type = NLA_FLAG },
783 [HWSIM_ATTR_RADIO_NAME] = { .type = NLA_STRING },
784 [HWSIM_ATTR_NO_VIF] = { .type = NLA_FLAG },
785 [HWSIM_ATTR_FREQ] = { .type = NLA_U32 },
786 [HWSIM_ATTR_TX_INFO_FLAGS] = { .type = NLA_BINARY },
787 [HWSIM_ATTR_PERM_ADDR] = NLA_POLICY_ETH_ADDR_COMPAT,
788 [HWSIM_ATTR_IFTYPE_SUPPORT] = { .type = NLA_U32 },
789 [HWSIM_ATTR_CIPHER_SUPPORT] = { .type = NLA_BINARY },
790 [HWSIM_ATTR_MLO_SUPPORT] = { .type = NLA_FLAG },
791 };
792
793 #if IS_REACHABLE(CONFIG_VIRTIO)
794
795 /* MAC80211_HWSIM virtio queues */
796 static struct virtqueue *hwsim_vqs[HWSIM_NUM_VQS];
797 static bool hwsim_virtio_enabled;
798 static DEFINE_SPINLOCK(hwsim_virtio_lock);
799
800 static void hwsim_virtio_rx_work(struct work_struct *work);
801 static DECLARE_WORK(hwsim_virtio_rx, hwsim_virtio_rx_work);
802
hwsim_tx_virtio(struct mac80211_hwsim_data * data,struct sk_buff * skb)803 static int hwsim_tx_virtio(struct mac80211_hwsim_data *data,
804 struct sk_buff *skb)
805 {
806 struct scatterlist sg[1];
807 unsigned long flags;
808 int err;
809
810 spin_lock_irqsave(&hwsim_virtio_lock, flags);
811 if (!hwsim_virtio_enabled) {
812 err = -ENODEV;
813 goto out_free;
814 }
815
816 sg_init_one(sg, skb->head, skb_end_offset(skb));
817 err = virtqueue_add_outbuf(hwsim_vqs[HWSIM_VQ_TX], sg, 1, skb,
818 GFP_ATOMIC);
819 if (err)
820 goto out_free;
821 virtqueue_kick(hwsim_vqs[HWSIM_VQ_TX]);
822 spin_unlock_irqrestore(&hwsim_virtio_lock, flags);
823 return 0;
824
825 out_free:
826 spin_unlock_irqrestore(&hwsim_virtio_lock, flags);
827 nlmsg_free(skb);
828 return err;
829 }
830 #else
831 /* cause a linker error if this ends up being needed */
832 extern int hwsim_tx_virtio(struct mac80211_hwsim_data *data,
833 struct sk_buff *skb);
834 #define hwsim_virtio_enabled false
835 #endif
836
hwsim_get_chanwidth(enum nl80211_chan_width bw)837 static int hwsim_get_chanwidth(enum nl80211_chan_width bw)
838 {
839 switch (bw) {
840 case NL80211_CHAN_WIDTH_20_NOHT:
841 case NL80211_CHAN_WIDTH_20:
842 return 20;
843 case NL80211_CHAN_WIDTH_40:
844 return 40;
845 case NL80211_CHAN_WIDTH_80:
846 return 80;
847 case NL80211_CHAN_WIDTH_80P80:
848 case NL80211_CHAN_WIDTH_160:
849 return 160;
850 case NL80211_CHAN_WIDTH_320:
851 return 320;
852 case NL80211_CHAN_WIDTH_5:
853 return 5;
854 case NL80211_CHAN_WIDTH_10:
855 return 10;
856 case NL80211_CHAN_WIDTH_1:
857 return 1;
858 case NL80211_CHAN_WIDTH_2:
859 return 2;
860 case NL80211_CHAN_WIDTH_4:
861 return 4;
862 case NL80211_CHAN_WIDTH_8:
863 return 8;
864 case NL80211_CHAN_WIDTH_16:
865 return 16;
866 }
867
868 return INT_MAX;
869 }
870
871 static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
872 struct sk_buff *skb,
873 struct ieee80211_channel *chan);
874
875 /* sysfs attributes */
hwsim_send_ps_poll(void * dat,u8 * mac,struct ieee80211_vif * vif)876 static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
877 {
878 struct mac80211_hwsim_data *data = dat;
879 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
880 struct sk_buff *skb;
881 struct ieee80211_pspoll *pspoll;
882
883 if (!vp->assoc)
884 return;
885
886 wiphy_dbg(data->hw->wiphy,
887 "%s: send PS-Poll to %pM for aid %d\n",
888 __func__, vp->bssid, vp->aid);
889
890 skb = dev_alloc_skb(sizeof(*pspoll));
891 if (!skb)
892 return;
893 pspoll = skb_put(skb, sizeof(*pspoll));
894 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
895 IEEE80211_STYPE_PSPOLL |
896 IEEE80211_FCTL_PM);
897 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
898 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
899 memcpy(pspoll->ta, mac, ETH_ALEN);
900
901 rcu_read_lock();
902 mac80211_hwsim_tx_frame(data->hw, skb,
903 rcu_dereference(vif->bss_conf.chanctx_conf)->def.chan);
904 rcu_read_unlock();
905 }
906
hwsim_send_nullfunc(struct mac80211_hwsim_data * data,u8 * mac,struct ieee80211_vif * vif,int ps)907 static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
908 struct ieee80211_vif *vif, int ps)
909 {
910 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
911 struct sk_buff *skb;
912 struct ieee80211_hdr *hdr;
913 struct ieee80211_tx_info *cb;
914
915 if (!vp->assoc)
916 return;
917
918 wiphy_dbg(data->hw->wiphy,
919 "%s: send data::nullfunc to %pM ps=%d\n",
920 __func__, vp->bssid, ps);
921
922 skb = dev_alloc_skb(sizeof(*hdr));
923 if (!skb)
924 return;
925 hdr = skb_put(skb, sizeof(*hdr) - ETH_ALEN);
926 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
927 IEEE80211_STYPE_NULLFUNC |
928 IEEE80211_FCTL_TODS |
929 (ps ? IEEE80211_FCTL_PM : 0));
930 hdr->duration_id = cpu_to_le16(0);
931 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
932 memcpy(hdr->addr2, mac, ETH_ALEN);
933 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
934
935 cb = IEEE80211_SKB_CB(skb);
936 cb->control.rates[0].count = 1;
937 cb->control.rates[1].idx = -1;
938
939 rcu_read_lock();
940 mac80211_hwsim_tx_frame(data->hw, skb,
941 rcu_dereference(vif->bss_conf.chanctx_conf)->def.chan);
942 rcu_read_unlock();
943 }
944
945
hwsim_send_nullfunc_ps(void * dat,u8 * mac,struct ieee80211_vif * vif)946 static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
947 struct ieee80211_vif *vif)
948 {
949 struct mac80211_hwsim_data *data = dat;
950 hwsim_send_nullfunc(data, mac, vif, 1);
951 }
952
hwsim_send_nullfunc_no_ps(void * dat,u8 * mac,struct ieee80211_vif * vif)953 static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
954 struct ieee80211_vif *vif)
955 {
956 struct mac80211_hwsim_data *data = dat;
957 hwsim_send_nullfunc(data, mac, vif, 0);
958 }
959
hwsim_fops_ps_read(void * dat,u64 * val)960 static int hwsim_fops_ps_read(void *dat, u64 *val)
961 {
962 struct mac80211_hwsim_data *data = dat;
963 *val = data->ps;
964 return 0;
965 }
966
hwsim_fops_ps_write(void * dat,u64 val)967 static int hwsim_fops_ps_write(void *dat, u64 val)
968 {
969 struct mac80211_hwsim_data *data = dat;
970 enum ps_mode old_ps;
971
972 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
973 val != PS_MANUAL_POLL)
974 return -EINVAL;
975
976 if (val == PS_MANUAL_POLL) {
977 if (data->ps != PS_ENABLED)
978 return -EINVAL;
979 local_bh_disable();
980 ieee80211_iterate_active_interfaces_atomic(
981 data->hw, IEEE80211_IFACE_ITER_NORMAL,
982 hwsim_send_ps_poll, data);
983 local_bh_enable();
984 return 0;
985 }
986 old_ps = data->ps;
987 data->ps = val;
988
989 local_bh_disable();
990 if (old_ps == PS_DISABLED && val != PS_DISABLED) {
991 ieee80211_iterate_active_interfaces_atomic(
992 data->hw, IEEE80211_IFACE_ITER_NORMAL,
993 hwsim_send_nullfunc_ps, data);
994 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
995 ieee80211_iterate_active_interfaces_atomic(
996 data->hw, IEEE80211_IFACE_ITER_NORMAL,
997 hwsim_send_nullfunc_no_ps, data);
998 }
999 local_bh_enable();
1000
1001 return 0;
1002 }
1003
1004 DEFINE_DEBUGFS_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
1005 "%llu\n");
1006
hwsim_write_simulate_radar(void * dat,u64 val)1007 static int hwsim_write_simulate_radar(void *dat, u64 val)
1008 {
1009 struct mac80211_hwsim_data *data = dat;
1010
1011 ieee80211_radar_detected(data->hw);
1012
1013 return 0;
1014 }
1015
1016 DEFINE_DEBUGFS_ATTRIBUTE(hwsim_simulate_radar, NULL,
1017 hwsim_write_simulate_radar, "%llu\n");
1018
hwsim_fops_group_read(void * dat,u64 * val)1019 static int hwsim_fops_group_read(void *dat, u64 *val)
1020 {
1021 struct mac80211_hwsim_data *data = dat;
1022 *val = data->group;
1023 return 0;
1024 }
1025
hwsim_fops_group_write(void * dat,u64 val)1026 static int hwsim_fops_group_write(void *dat, u64 val)
1027 {
1028 struct mac80211_hwsim_data *data = dat;
1029 data->group = val;
1030 return 0;
1031 }
1032
1033 DEFINE_DEBUGFS_ATTRIBUTE(hwsim_fops_group,
1034 hwsim_fops_group_read, hwsim_fops_group_write,
1035 "%llx\n");
1036
hwsim_fops_rx_rssi_read(void * dat,u64 * val)1037 static int hwsim_fops_rx_rssi_read(void *dat, u64 *val)
1038 {
1039 struct mac80211_hwsim_data *data = dat;
1040 *val = data->rx_rssi;
1041 return 0;
1042 }
1043
hwsim_fops_rx_rssi_write(void * dat,u64 val)1044 static int hwsim_fops_rx_rssi_write(void *dat, u64 val)
1045 {
1046 struct mac80211_hwsim_data *data = dat;
1047 int rssi = (int)val;
1048
1049 if (rssi >= 0 || rssi < -100)
1050 return -EINVAL;
1051
1052 data->rx_rssi = rssi;
1053 return 0;
1054 }
1055
1056 DEFINE_DEBUGFS_ATTRIBUTE(hwsim_fops_rx_rssi,
1057 hwsim_fops_rx_rssi_read, hwsim_fops_rx_rssi_write,
1058 "%lld\n");
1059
hwsim_mon_xmit(struct sk_buff * skb,struct net_device * dev)1060 static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
1061 struct net_device *dev)
1062 {
1063 /* TODO: allow packet injection */
1064 dev_kfree_skb(skb);
1065 return NETDEV_TX_OK;
1066 }
1067
mac80211_hwsim_get_tsf_raw(void)1068 static inline u64 mac80211_hwsim_get_tsf_raw(void)
1069 {
1070 return ktime_to_us(ktime_get_real());
1071 }
1072
__mac80211_hwsim_get_tsf(struct mac80211_hwsim_data * data)1073 static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
1074 {
1075 u64 now = mac80211_hwsim_get_tsf_raw();
1076 return cpu_to_le64(now + data->tsf_offset);
1077 }
1078
mac80211_hwsim_get_tsf(struct ieee80211_hw * hw,struct ieee80211_vif * vif)1079 static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
1080 struct ieee80211_vif *vif)
1081 {
1082 struct mac80211_hwsim_data *data = hw->priv;
1083 return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
1084 }
1085
mac80211_hwsim_set_tsf(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u64 tsf)1086 static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
1087 struct ieee80211_vif *vif, u64 tsf)
1088 {
1089 struct mac80211_hwsim_data *data = hw->priv;
1090 u64 now = mac80211_hwsim_get_tsf(hw, vif);
1091 /* MLD not supported here */
1092 u32 bcn_int = data->link_data[0].beacon_int;
1093 u64 delta = abs(tsf - now);
1094
1095 /* adjust after beaconing with new timestamp at old TBTT */
1096 if (tsf > now) {
1097 data->tsf_offset += delta;
1098 data->bcn_delta = do_div(delta, bcn_int);
1099 } else {
1100 data->tsf_offset -= delta;
1101 data->bcn_delta = -(s64)do_div(delta, bcn_int);
1102 }
1103 }
1104
mac80211_hwsim_monitor_rx(struct ieee80211_hw * hw,struct sk_buff * tx_skb,struct ieee80211_channel * chan)1105 static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
1106 struct sk_buff *tx_skb,
1107 struct ieee80211_channel *chan)
1108 {
1109 struct mac80211_hwsim_data *data = hw->priv;
1110 struct sk_buff *skb;
1111 struct hwsim_radiotap_hdr *hdr;
1112 u16 flags, bitrate;
1113 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
1114 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
1115
1116 if (!txrate)
1117 bitrate = 0;
1118 else
1119 bitrate = txrate->bitrate;
1120
1121 if (!netif_running(hwsim_mon))
1122 return;
1123
1124 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
1125 if (skb == NULL)
1126 return;
1127
1128 hdr = skb_push(skb, sizeof(*hdr));
1129 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
1130 hdr->hdr.it_pad = 0;
1131 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
1132 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
1133 (1 << IEEE80211_RADIOTAP_RATE) |
1134 (1 << IEEE80211_RADIOTAP_TSFT) |
1135 (1 << IEEE80211_RADIOTAP_CHANNEL));
1136 hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
1137 hdr->rt_flags = 0;
1138 hdr->rt_rate = bitrate / 5;
1139 hdr->rt_channel = cpu_to_le16(chan->center_freq);
1140 flags = IEEE80211_CHAN_2GHZ;
1141 if (txrate && txrate->flags & IEEE80211_RATE_ERP_G)
1142 flags |= IEEE80211_CHAN_OFDM;
1143 else
1144 flags |= IEEE80211_CHAN_CCK;
1145 hdr->rt_chbitmask = cpu_to_le16(flags);
1146
1147 skb->dev = hwsim_mon;
1148 skb_reset_mac_header(skb);
1149 skb->ip_summed = CHECKSUM_UNNECESSARY;
1150 skb->pkt_type = PACKET_OTHERHOST;
1151 skb->protocol = htons(ETH_P_802_2);
1152 memset(skb->cb, 0, sizeof(skb->cb));
1153 netif_rx(skb);
1154 }
1155
1156
mac80211_hwsim_monitor_ack(struct ieee80211_channel * chan,const u8 * addr)1157 static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
1158 const u8 *addr)
1159 {
1160 struct sk_buff *skb;
1161 struct hwsim_radiotap_ack_hdr *hdr;
1162 u16 flags;
1163 struct ieee80211_hdr *hdr11;
1164
1165 if (!netif_running(hwsim_mon))
1166 return;
1167
1168 skb = dev_alloc_skb(100);
1169 if (skb == NULL)
1170 return;
1171
1172 hdr = skb_put(skb, sizeof(*hdr));
1173 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
1174 hdr->hdr.it_pad = 0;
1175 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
1176 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
1177 (1 << IEEE80211_RADIOTAP_CHANNEL));
1178 hdr->rt_flags = 0;
1179 hdr->pad = 0;
1180 hdr->rt_channel = cpu_to_le16(chan->center_freq);
1181 flags = IEEE80211_CHAN_2GHZ;
1182 hdr->rt_chbitmask = cpu_to_le16(flags);
1183
1184 hdr11 = skb_put(skb, 10);
1185 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
1186 IEEE80211_STYPE_ACK);
1187 hdr11->duration_id = cpu_to_le16(0);
1188 memcpy(hdr11->addr1, addr, ETH_ALEN);
1189
1190 skb->dev = hwsim_mon;
1191 skb_reset_mac_header(skb);
1192 skb->ip_summed = CHECKSUM_UNNECESSARY;
1193 skb->pkt_type = PACKET_OTHERHOST;
1194 skb->protocol = htons(ETH_P_802_2);
1195 memset(skb->cb, 0, sizeof(skb->cb));
1196 netif_rx(skb);
1197 }
1198
1199 struct mac80211_hwsim_addr_match_data {
1200 u8 addr[ETH_ALEN];
1201 bool ret;
1202 };
1203
mac80211_hwsim_addr_iter(void * data,u8 * mac,struct ieee80211_vif * vif)1204 static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
1205 struct ieee80211_vif *vif)
1206 {
1207 int i;
1208 struct mac80211_hwsim_addr_match_data *md = data;
1209
1210 if (memcmp(mac, md->addr, ETH_ALEN) == 0) {
1211 md->ret = true;
1212 return;
1213 }
1214
1215 /* Match the link address */
1216 for (i = 0; i < ARRAY_SIZE(vif->link_conf); i++) {
1217 struct ieee80211_bss_conf *conf;
1218
1219 conf = rcu_dereference(vif->link_conf[i]);
1220 if (!conf)
1221 continue;
1222
1223 if (memcmp(conf->addr, md->addr, ETH_ALEN) == 0) {
1224 md->ret = true;
1225 return;
1226 }
1227 }
1228 }
1229
mac80211_hwsim_addr_match(struct mac80211_hwsim_data * data,const u8 * addr)1230 static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
1231 const u8 *addr)
1232 {
1233 struct mac80211_hwsim_addr_match_data md = {
1234 .ret = false,
1235 };
1236
1237 if (data->scanning && memcmp(addr, data->scan_addr, ETH_ALEN) == 0)
1238 return true;
1239
1240 memcpy(md.addr, addr, ETH_ALEN);
1241
1242 ieee80211_iterate_active_interfaces_atomic(data->hw,
1243 IEEE80211_IFACE_ITER_NORMAL,
1244 mac80211_hwsim_addr_iter,
1245 &md);
1246
1247 return md.ret;
1248 }
1249
hwsim_ps_rx_ok(struct mac80211_hwsim_data * data,struct sk_buff * skb)1250 static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
1251 struct sk_buff *skb)
1252 {
1253 switch (data->ps) {
1254 case PS_DISABLED:
1255 return true;
1256 case PS_ENABLED:
1257 return false;
1258 case PS_AUTO_POLL:
1259 /* TODO: accept (some) Beacons by default and other frames only
1260 * if pending PS-Poll has been sent */
1261 return true;
1262 case PS_MANUAL_POLL:
1263 /* Allow unicast frames to own address if there is a pending
1264 * PS-Poll */
1265 if (data->ps_poll_pending &&
1266 mac80211_hwsim_addr_match(data, skb->data + 4)) {
1267 data->ps_poll_pending = false;
1268 return true;
1269 }
1270 return false;
1271 }
1272
1273 return true;
1274 }
1275
hwsim_unicast_netgroup(struct mac80211_hwsim_data * data,struct sk_buff * skb,int portid)1276 static int hwsim_unicast_netgroup(struct mac80211_hwsim_data *data,
1277 struct sk_buff *skb, int portid)
1278 {
1279 struct net *net;
1280 bool found = false;
1281 int res = -ENOENT;
1282
1283 rcu_read_lock();
1284 for_each_net_rcu(net) {
1285 if (data->netgroup == hwsim_net_get_netgroup(net)) {
1286 res = genlmsg_unicast(net, skb, portid);
1287 found = true;
1288 break;
1289 }
1290 }
1291 rcu_read_unlock();
1292
1293 if (!found)
1294 nlmsg_free(skb);
1295
1296 return res;
1297 }
1298
mac80211_hwsim_config_mac_nl(struct ieee80211_hw * hw,const u8 * addr,bool add)1299 static void mac80211_hwsim_config_mac_nl(struct ieee80211_hw *hw,
1300 const u8 *addr, bool add)
1301 {
1302 struct mac80211_hwsim_data *data = hw->priv;
1303 u32 _portid = READ_ONCE(data->wmediumd);
1304 struct sk_buff *skb;
1305 void *msg_head;
1306
1307 WARN_ON(!is_valid_ether_addr(addr));
1308
1309 if (!_portid && !hwsim_virtio_enabled)
1310 return;
1311
1312 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
1313 if (!skb)
1314 return;
1315
1316 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
1317 add ? HWSIM_CMD_ADD_MAC_ADDR :
1318 HWSIM_CMD_DEL_MAC_ADDR);
1319 if (!msg_head) {
1320 pr_debug("mac80211_hwsim: problem with msg_head\n");
1321 goto nla_put_failure;
1322 }
1323
1324 if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
1325 ETH_ALEN, data->addresses[1].addr))
1326 goto nla_put_failure;
1327
1328 if (nla_put(skb, HWSIM_ATTR_ADDR_RECEIVER, ETH_ALEN, addr))
1329 goto nla_put_failure;
1330
1331 genlmsg_end(skb, msg_head);
1332
1333 if (hwsim_virtio_enabled)
1334 hwsim_tx_virtio(data, skb);
1335 else
1336 hwsim_unicast_netgroup(data, skb, _portid);
1337 return;
1338 nla_put_failure:
1339 nlmsg_free(skb);
1340 }
1341
trans_tx_rate_flags_ieee2hwsim(struct ieee80211_tx_rate * rate)1342 static inline u16 trans_tx_rate_flags_ieee2hwsim(struct ieee80211_tx_rate *rate)
1343 {
1344 u16 result = 0;
1345
1346 if (rate->flags & IEEE80211_TX_RC_USE_RTS_CTS)
1347 result |= MAC80211_HWSIM_TX_RC_USE_RTS_CTS;
1348 if (rate->flags & IEEE80211_TX_RC_USE_CTS_PROTECT)
1349 result |= MAC80211_HWSIM_TX_RC_USE_CTS_PROTECT;
1350 if (rate->flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
1351 result |= MAC80211_HWSIM_TX_RC_USE_SHORT_PREAMBLE;
1352 if (rate->flags & IEEE80211_TX_RC_MCS)
1353 result |= MAC80211_HWSIM_TX_RC_MCS;
1354 if (rate->flags & IEEE80211_TX_RC_GREEN_FIELD)
1355 result |= MAC80211_HWSIM_TX_RC_GREEN_FIELD;
1356 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
1357 result |= MAC80211_HWSIM_TX_RC_40_MHZ_WIDTH;
1358 if (rate->flags & IEEE80211_TX_RC_DUP_DATA)
1359 result |= MAC80211_HWSIM_TX_RC_DUP_DATA;
1360 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
1361 result |= MAC80211_HWSIM_TX_RC_SHORT_GI;
1362 if (rate->flags & IEEE80211_TX_RC_VHT_MCS)
1363 result |= MAC80211_HWSIM_TX_RC_VHT_MCS;
1364 if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
1365 result |= MAC80211_HWSIM_TX_RC_80_MHZ_WIDTH;
1366 if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
1367 result |= MAC80211_HWSIM_TX_RC_160_MHZ_WIDTH;
1368
1369 return result;
1370 }
1371
mac80211_hwsim_tx_frame_nl(struct ieee80211_hw * hw,struct sk_buff * my_skb,int dst_portid,struct ieee80211_channel * channel)1372 static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
1373 struct sk_buff *my_skb,
1374 int dst_portid,
1375 struct ieee80211_channel *channel)
1376 {
1377 struct sk_buff *skb;
1378 struct mac80211_hwsim_data *data = hw->priv;
1379 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
1380 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
1381 void *msg_head;
1382 unsigned int hwsim_flags = 0;
1383 int i;
1384 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
1385 struct hwsim_tx_rate_flag tx_attempts_flags[IEEE80211_TX_MAX_RATES];
1386 uintptr_t cookie;
1387
1388 if (data->ps != PS_DISABLED)
1389 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1390 /* If the queue contains MAX_QUEUE skb's drop some */
1391 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
1392 /* Dropping until WARN_QUEUE level */
1393 while (skb_queue_len(&data->pending) >= WARN_QUEUE) {
1394 ieee80211_free_txskb(hw, skb_dequeue(&data->pending));
1395 data->tx_dropped++;
1396 }
1397 }
1398
1399 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
1400 if (skb == NULL)
1401 goto nla_put_failure;
1402
1403 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
1404 HWSIM_CMD_FRAME);
1405 if (msg_head == NULL) {
1406 pr_debug("mac80211_hwsim: problem with msg_head\n");
1407 goto nla_put_failure;
1408 }
1409
1410 if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
1411 ETH_ALEN, data->addresses[1].addr))
1412 goto nla_put_failure;
1413
1414 /* We get the skb->data */
1415 if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
1416 goto nla_put_failure;
1417
1418 /* We get the flags for this transmission, and we translate them to
1419 wmediumd flags */
1420
1421 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
1422 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
1423
1424 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
1425 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
1426
1427 if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
1428 goto nla_put_failure;
1429
1430 if (nla_put_u32(skb, HWSIM_ATTR_FREQ, channel->center_freq))
1431 goto nla_put_failure;
1432
1433 /* We get the tx control (rate and retries) info*/
1434
1435 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
1436 tx_attempts[i].idx = info->status.rates[i].idx;
1437 tx_attempts_flags[i].idx = info->status.rates[i].idx;
1438 tx_attempts[i].count = info->status.rates[i].count;
1439 tx_attempts_flags[i].flags =
1440 trans_tx_rate_flags_ieee2hwsim(
1441 &info->status.rates[i]);
1442 }
1443
1444 if (nla_put(skb, HWSIM_ATTR_TX_INFO,
1445 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
1446 tx_attempts))
1447 goto nla_put_failure;
1448
1449 if (nla_put(skb, HWSIM_ATTR_TX_INFO_FLAGS,
1450 sizeof(struct hwsim_tx_rate_flag) * IEEE80211_TX_MAX_RATES,
1451 tx_attempts_flags))
1452 goto nla_put_failure;
1453
1454 /* We create a cookie to identify this skb */
1455 cookie = atomic_inc_return(&data->pending_cookie);
1456 info->rate_driver_data[0] = (void *)cookie;
1457 if (nla_put_u64_64bit(skb, HWSIM_ATTR_COOKIE, cookie, HWSIM_ATTR_PAD))
1458 goto nla_put_failure;
1459
1460 genlmsg_end(skb, msg_head);
1461
1462 if (hwsim_virtio_enabled) {
1463 if (hwsim_tx_virtio(data, skb))
1464 goto err_free_txskb;
1465 } else {
1466 if (hwsim_unicast_netgroup(data, skb, dst_portid))
1467 goto err_free_txskb;
1468 }
1469
1470 /* Enqueue the packet */
1471 skb_queue_tail(&data->pending, my_skb);
1472 data->tx_pkts++;
1473 data->tx_bytes += my_skb->len;
1474 return;
1475
1476 nla_put_failure:
1477 nlmsg_free(skb);
1478 err_free_txskb:
1479 pr_debug("mac80211_hwsim: error occurred in %s\n", __func__);
1480 ieee80211_free_txskb(hw, my_skb);
1481 data->tx_failed++;
1482 }
1483
hwsim_chans_compat(struct ieee80211_channel * c1,struct ieee80211_channel * c2)1484 static bool hwsim_chans_compat(struct ieee80211_channel *c1,
1485 struct ieee80211_channel *c2)
1486 {
1487 if (!c1 || !c2)
1488 return false;
1489
1490 return c1->center_freq == c2->center_freq;
1491 }
1492
1493 struct tx_iter_data {
1494 struct ieee80211_channel *channel;
1495 bool receive;
1496 };
1497
mac80211_hwsim_tx_iter(void * _data,u8 * addr,struct ieee80211_vif * vif)1498 static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
1499 struct ieee80211_vif *vif)
1500 {
1501 struct tx_iter_data *data = _data;
1502 int i;
1503
1504 for (i = 0; i < ARRAY_SIZE(vif->link_conf); i++) {
1505 struct ieee80211_bss_conf *conf;
1506 struct ieee80211_chanctx_conf *chanctx;
1507
1508 conf = rcu_dereference(vif->link_conf[i]);
1509 if (!conf)
1510 continue;
1511
1512 chanctx = rcu_dereference(conf->chanctx_conf);
1513 if (!chanctx)
1514 continue;
1515
1516 if (!hwsim_chans_compat(data->channel, chanctx->def.chan))
1517 continue;
1518
1519 data->receive = true;
1520 return;
1521 }
1522 }
1523
mac80211_hwsim_add_vendor_rtap(struct sk_buff * skb)1524 static void mac80211_hwsim_add_vendor_rtap(struct sk_buff *skb)
1525 {
1526 /*
1527 * To enable this code, #define the HWSIM_RADIOTAP_OUI,
1528 * e.g. like this:
1529 * #define HWSIM_RADIOTAP_OUI "\x02\x00\x00"
1530 * (but you should use a valid OUI, not that)
1531 *
1532 * If anyone wants to 'donate' a radiotap OUI/subns code
1533 * please send a patch removing this #ifdef and changing
1534 * the values accordingly.
1535 */
1536 #ifdef HWSIM_RADIOTAP_OUI
1537 struct ieee80211_vendor_radiotap *rtap;
1538
1539 /*
1540 * Note that this code requires the headroom in the SKB
1541 * that was allocated earlier.
1542 */
1543 rtap = skb_push(skb, sizeof(*rtap) + 8 + 4);
1544 rtap->oui[0] = HWSIM_RADIOTAP_OUI[0];
1545 rtap->oui[1] = HWSIM_RADIOTAP_OUI[1];
1546 rtap->oui[2] = HWSIM_RADIOTAP_OUI[2];
1547 rtap->subns = 127;
1548
1549 /*
1550 * Radiotap vendor namespaces can (and should) also be
1551 * split into fields by using the standard radiotap
1552 * presence bitmap mechanism. Use just BIT(0) here for
1553 * the presence bitmap.
1554 */
1555 rtap->present = BIT(0);
1556 /* We have 8 bytes of (dummy) data */
1557 rtap->len = 8;
1558 /* For testing, also require it to be aligned */
1559 rtap->align = 8;
1560 /* And also test that padding works, 4 bytes */
1561 rtap->pad = 4;
1562 /* push the data */
1563 memcpy(rtap->data, "ABCDEFGH", 8);
1564 /* make sure to clear padding, mac80211 doesn't */
1565 memset(rtap->data + 8, 0, 4);
1566
1567 IEEE80211_SKB_RXCB(skb)->flag |= RX_FLAG_RADIOTAP_VENDOR_DATA;
1568 #endif
1569 }
1570
mac80211_hwsim_rx(struct mac80211_hwsim_data * data,struct ieee80211_rx_status * rx_status,struct sk_buff * skb)1571 static void mac80211_hwsim_rx(struct mac80211_hwsim_data *data,
1572 struct ieee80211_rx_status *rx_status,
1573 struct sk_buff *skb)
1574 {
1575 struct ieee80211_hdr *hdr = (void *)skb->data;
1576
1577 if (!ieee80211_has_morefrags(hdr->frame_control) &&
1578 !is_multicast_ether_addr(hdr->addr1) &&
1579 (ieee80211_is_mgmt(hdr->frame_control) ||
1580 ieee80211_is_data(hdr->frame_control))) {
1581 struct ieee80211_sta *sta;
1582 unsigned int link_id;
1583
1584 rcu_read_lock();
1585 sta = ieee80211_find_sta_by_link_addrs(data->hw, hdr->addr2,
1586 hdr->addr1, &link_id);
1587 if (sta) {
1588 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
1589
1590 if (ieee80211_has_pm(hdr->frame_control))
1591 sp->active_links_rx &= ~BIT(link_id);
1592 else
1593 sp->active_links_rx |= BIT(link_id);
1594 }
1595 rcu_read_unlock();
1596 }
1597
1598 memcpy(IEEE80211_SKB_RXCB(skb), rx_status, sizeof(*rx_status));
1599
1600 mac80211_hwsim_add_vendor_rtap(skb);
1601
1602 data->rx_pkts++;
1603 data->rx_bytes += skb->len;
1604 ieee80211_rx_irqsafe(data->hw, skb);
1605 }
1606
mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw * hw,struct sk_buff * skb,struct ieee80211_channel * chan)1607 static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
1608 struct sk_buff *skb,
1609 struct ieee80211_channel *chan)
1610 {
1611 struct mac80211_hwsim_data *data = hw->priv, *data2;
1612 bool ack = false;
1613 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
1614 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1615 struct ieee80211_rx_status rx_status;
1616 u64 now;
1617
1618 memset(&rx_status, 0, sizeof(rx_status));
1619 rx_status.flag |= RX_FLAG_MACTIME_START;
1620 rx_status.freq = chan->center_freq;
1621 rx_status.freq_offset = chan->freq_offset ? 1 : 0;
1622 rx_status.band = chan->band;
1623 if (info->control.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) {
1624 rx_status.rate_idx =
1625 ieee80211_rate_get_vht_mcs(&info->control.rates[0]);
1626 rx_status.nss =
1627 ieee80211_rate_get_vht_nss(&info->control.rates[0]);
1628 rx_status.encoding = RX_ENC_VHT;
1629 } else {
1630 rx_status.rate_idx = info->control.rates[0].idx;
1631 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
1632 rx_status.encoding = RX_ENC_HT;
1633 }
1634 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
1635 rx_status.bw = RATE_INFO_BW_40;
1636 else if (info->control.rates[0].flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
1637 rx_status.bw = RATE_INFO_BW_80;
1638 else if (info->control.rates[0].flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
1639 rx_status.bw = RATE_INFO_BW_160;
1640 else
1641 rx_status.bw = RATE_INFO_BW_20;
1642 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
1643 rx_status.enc_flags |= RX_ENC_FLAG_SHORT_GI;
1644 /* TODO: simulate optional packet loss */
1645 rx_status.signal = data->rx_rssi;
1646 if (info->control.vif)
1647 rx_status.signal += info->control.vif->bss_conf.txpower;
1648
1649 if (data->ps != PS_DISABLED)
1650 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1651
1652 /* release the skb's source info */
1653 skb_orphan(skb);
1654 skb_dst_drop(skb);
1655 skb->mark = 0;
1656 skb_ext_reset(skb);
1657 nf_reset_ct(skb);
1658
1659 /*
1660 * Get absolute mactime here so all HWs RX at the "same time", and
1661 * absolute TX time for beacon mactime so the timestamp matches.
1662 * Giving beacons a different mactime than non-beacons looks messy, but
1663 * it helps the Toffset be exact and a ~10us mactime discrepancy
1664 * probably doesn't really matter.
1665 */
1666 if (ieee80211_is_beacon(hdr->frame_control) ||
1667 ieee80211_is_probe_resp(hdr->frame_control)) {
1668 rx_status.boottime_ns = ktime_get_boottime_ns();
1669 now = data->abs_bcn_ts;
1670 } else {
1671 now = mac80211_hwsim_get_tsf_raw();
1672 }
1673
1674 /* Copy skb to all enabled radios that are on the current frequency */
1675 spin_lock(&hwsim_radio_lock);
1676 list_for_each_entry(data2, &hwsim_radios, list) {
1677 struct sk_buff *nskb;
1678 struct tx_iter_data tx_iter_data = {
1679 .receive = false,
1680 .channel = chan,
1681 };
1682
1683 if (data == data2)
1684 continue;
1685
1686 if (!data2->started || (data2->idle && !data2->tmp_chan) ||
1687 !hwsim_ps_rx_ok(data2, skb))
1688 continue;
1689
1690 if (!(data->group & data2->group))
1691 continue;
1692
1693 if (data->netgroup != data2->netgroup)
1694 continue;
1695
1696 if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
1697 !hwsim_chans_compat(chan, data2->channel)) {
1698 ieee80211_iterate_active_interfaces_atomic(
1699 data2->hw, IEEE80211_IFACE_ITER_NORMAL,
1700 mac80211_hwsim_tx_iter, &tx_iter_data);
1701 if (!tx_iter_data.receive)
1702 continue;
1703 }
1704
1705 /*
1706 * reserve some space for our vendor and the normal
1707 * radiotap header, since we're copying anyway
1708 */
1709 if (skb->len < PAGE_SIZE && paged_rx) {
1710 struct page *page = alloc_page(GFP_ATOMIC);
1711
1712 if (!page)
1713 continue;
1714
1715 nskb = dev_alloc_skb(128);
1716 if (!nskb) {
1717 __free_page(page);
1718 continue;
1719 }
1720
1721 memcpy(page_address(page), skb->data, skb->len);
1722 skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
1723 } else {
1724 nskb = skb_copy(skb, GFP_ATOMIC);
1725 if (!nskb)
1726 continue;
1727 }
1728
1729 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
1730 ack = true;
1731
1732 rx_status.mactime = now + data2->tsf_offset;
1733
1734 mac80211_hwsim_rx(data2, &rx_status, nskb);
1735 }
1736 spin_unlock(&hwsim_radio_lock);
1737
1738 return ack;
1739 }
1740
1741 static struct ieee80211_bss_conf *
mac80211_hwsim_select_tx_link(struct mac80211_hwsim_data * data,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct ieee80211_hdr * hdr,struct ieee80211_link_sta ** link_sta)1742 mac80211_hwsim_select_tx_link(struct mac80211_hwsim_data *data,
1743 struct ieee80211_vif *vif,
1744 struct ieee80211_sta *sta,
1745 struct ieee80211_hdr *hdr,
1746 struct ieee80211_link_sta **link_sta)
1747 {
1748 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
1749 int i;
1750
1751 if (!vif->valid_links)
1752 return &vif->bss_conf;
1753
1754 WARN_ON(is_multicast_ether_addr(hdr->addr1));
1755
1756 if (WARN_ON_ONCE(!sta->valid_links))
1757 return &vif->bss_conf;
1758
1759 for (i = 0; i < ARRAY_SIZE(vif->link_conf); i++) {
1760 struct ieee80211_bss_conf *bss_conf;
1761 unsigned int link_id;
1762
1763 /* round-robin the available link IDs */
1764 link_id = (sp->last_link + i + 1) % ARRAY_SIZE(vif->link_conf);
1765
1766 if (!(vif->active_links & BIT(link_id)))
1767 continue;
1768
1769 if (!(sp->active_links_rx & BIT(link_id)))
1770 continue;
1771
1772 *link_sta = rcu_dereference(sta->link[link_id]);
1773 if (!*link_sta)
1774 continue;
1775
1776 bss_conf = rcu_dereference(vif->link_conf[link_id]);
1777 if (WARN_ON_ONCE(!bss_conf))
1778 continue;
1779
1780 /* can happen while switching links */
1781 if (!rcu_access_pointer(bss_conf->chanctx_conf))
1782 continue;
1783
1784 sp->last_link = link_id;
1785 return bss_conf;
1786 }
1787
1788 return NULL;
1789 }
1790
mac80211_hwsim_tx(struct ieee80211_hw * hw,struct ieee80211_tx_control * control,struct sk_buff * skb)1791 static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
1792 struct ieee80211_tx_control *control,
1793 struct sk_buff *skb)
1794 {
1795 struct mac80211_hwsim_data *data = hw->priv;
1796 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1797 struct ieee80211_hdr *hdr = (void *)skb->data;
1798 struct ieee80211_chanctx_conf *chanctx_conf;
1799 struct ieee80211_channel *channel;
1800 bool ack;
1801 enum nl80211_chan_width confbw = NL80211_CHAN_WIDTH_20_NOHT;
1802 u32 _portid, i;
1803
1804 if (WARN_ON(skb->len < 10)) {
1805 /* Should not happen; just a sanity check for addr1 use */
1806 ieee80211_free_txskb(hw, skb);
1807 return;
1808 }
1809
1810 if (!data->use_chanctx) {
1811 channel = data->channel;
1812 confbw = data->bw;
1813 } else if (txi->hw_queue == 4) {
1814 channel = data->tmp_chan;
1815 } else {
1816 u8 link = u32_get_bits(IEEE80211_SKB_CB(skb)->control.flags,
1817 IEEE80211_TX_CTRL_MLO_LINK);
1818 struct ieee80211_vif *vif = txi->control.vif;
1819 struct ieee80211_link_sta *link_sta = NULL;
1820 struct ieee80211_sta *sta = control->sta;
1821 struct ieee80211_bss_conf *bss_conf;
1822
1823 if (link != IEEE80211_LINK_UNSPECIFIED) {
1824 bss_conf = rcu_dereference(txi->control.vif->link_conf[link]);
1825 if (sta)
1826 link_sta = rcu_dereference(sta->link[link]);
1827 } else {
1828 bss_conf = mac80211_hwsim_select_tx_link(data, vif, sta,
1829 hdr, &link_sta);
1830 }
1831
1832 if (WARN_ON(!bss_conf)) {
1833 ieee80211_free_txskb(hw, skb);
1834 return;
1835 }
1836
1837 if (sta && sta->mlo) {
1838 if (WARN_ON(!link_sta)) {
1839 ieee80211_free_txskb(hw, skb);
1840 return;
1841 }
1842 /* address translation to link addresses on TX */
1843 ether_addr_copy(hdr->addr1, link_sta->addr);
1844 ether_addr_copy(hdr->addr2, bss_conf->addr);
1845 /* translate A3 only if it's the BSSID */
1846 if (!ieee80211_has_tods(hdr->frame_control) &&
1847 !ieee80211_has_fromds(hdr->frame_control)) {
1848 if (ether_addr_equal(hdr->addr3, sta->addr))
1849 ether_addr_copy(hdr->addr3, link_sta->addr);
1850 else if (ether_addr_equal(hdr->addr3, vif->addr))
1851 ether_addr_copy(hdr->addr3, bss_conf->addr);
1852 }
1853 /* no need to look at A4, if present it's SA */
1854 }
1855
1856 chanctx_conf = rcu_dereference(bss_conf->chanctx_conf);
1857 if (chanctx_conf) {
1858 channel = chanctx_conf->def.chan;
1859 confbw = chanctx_conf->def.width;
1860 } else {
1861 channel = NULL;
1862 }
1863 }
1864
1865 if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
1866 ieee80211_free_txskb(hw, skb);
1867 return;
1868 }
1869
1870 if (data->idle && !data->tmp_chan) {
1871 wiphy_dbg(hw->wiphy, "Trying to TX when idle - reject\n");
1872 ieee80211_free_txskb(hw, skb);
1873 return;
1874 }
1875
1876 if (txi->control.vif)
1877 hwsim_check_magic(txi->control.vif);
1878 if (control->sta)
1879 hwsim_check_sta_magic(control->sta);
1880
1881 if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE))
1882 ieee80211_get_tx_rates(txi->control.vif, control->sta, skb,
1883 txi->control.rates,
1884 ARRAY_SIZE(txi->control.rates));
1885
1886 for (i = 0; i < ARRAY_SIZE(txi->control.rates); i++) {
1887 u16 rflags = txi->control.rates[i].flags;
1888 /* initialize to data->bw for 5/10 MHz handling */
1889 enum nl80211_chan_width bw = data->bw;
1890
1891 if (txi->control.rates[i].idx == -1)
1892 break;
1893
1894 if (rflags & IEEE80211_TX_RC_40_MHZ_WIDTH)
1895 bw = NL80211_CHAN_WIDTH_40;
1896 else if (rflags & IEEE80211_TX_RC_80_MHZ_WIDTH)
1897 bw = NL80211_CHAN_WIDTH_80;
1898 else if (rflags & IEEE80211_TX_RC_160_MHZ_WIDTH)
1899 bw = NL80211_CHAN_WIDTH_160;
1900
1901 if (WARN_ON(hwsim_get_chanwidth(bw) > hwsim_get_chanwidth(confbw)))
1902 return;
1903 }
1904
1905 if (skb->len >= 24 + 8 &&
1906 ieee80211_is_probe_resp(hdr->frame_control)) {
1907 /* fake header transmission time */
1908 struct ieee80211_mgmt *mgmt;
1909 struct ieee80211_rate *txrate;
1910 /* TODO: get MCS */
1911 int bitrate = 100;
1912 u64 ts;
1913
1914 mgmt = (struct ieee80211_mgmt *)skb->data;
1915 txrate = ieee80211_get_tx_rate(hw, txi);
1916 if (txrate)
1917 bitrate = txrate->bitrate;
1918 ts = mac80211_hwsim_get_tsf_raw();
1919 mgmt->u.probe_resp.timestamp =
1920 cpu_to_le64(ts + data->tsf_offset +
1921 24 * 8 * 10 / bitrate);
1922 }
1923
1924 mac80211_hwsim_monitor_rx(hw, skb, channel);
1925
1926 /* wmediumd mode check */
1927 _portid = READ_ONCE(data->wmediumd);
1928
1929 if (_portid || hwsim_virtio_enabled)
1930 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid, channel);
1931
1932 /* NO wmediumd detected, perfect medium simulation */
1933 data->tx_pkts++;
1934 data->tx_bytes += skb->len;
1935 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
1936
1937 if (ack && skb->len >= 16)
1938 mac80211_hwsim_monitor_ack(channel, hdr->addr2);
1939
1940 ieee80211_tx_info_clear_status(txi);
1941
1942 /* frame was transmitted at most favorable rate at first attempt */
1943 txi->control.rates[0].count = 1;
1944 txi->control.rates[1].idx = -1;
1945
1946 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
1947 txi->flags |= IEEE80211_TX_STAT_ACK;
1948 ieee80211_tx_status_irqsafe(hw, skb);
1949 }
1950
1951
mac80211_hwsim_start(struct ieee80211_hw * hw)1952 static int mac80211_hwsim_start(struct ieee80211_hw *hw)
1953 {
1954 struct mac80211_hwsim_data *data = hw->priv;
1955 wiphy_dbg(hw->wiphy, "%s\n", __func__);
1956 data->started = true;
1957 return 0;
1958 }
1959
1960
mac80211_hwsim_stop(struct ieee80211_hw * hw)1961 static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
1962 {
1963 struct mac80211_hwsim_data *data = hw->priv;
1964 int i;
1965
1966 data->started = false;
1967
1968 for (i = 0; i < ARRAY_SIZE(data->link_data); i++)
1969 hrtimer_cancel(&data->link_data[i].beacon_timer);
1970
1971 while (!skb_queue_empty(&data->pending))
1972 ieee80211_free_txskb(hw, skb_dequeue(&data->pending));
1973
1974 wiphy_dbg(hw->wiphy, "%s\n", __func__);
1975 }
1976
1977
mac80211_hwsim_add_interface(struct ieee80211_hw * hw,struct ieee80211_vif * vif)1978 static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
1979 struct ieee80211_vif *vif)
1980 {
1981 wiphy_dbg(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
1982 __func__, ieee80211_vif_type_p2p(vif),
1983 vif->addr);
1984 hwsim_set_magic(vif);
1985
1986 if (vif->type != NL80211_IFTYPE_MONITOR)
1987 mac80211_hwsim_config_mac_nl(hw, vif->addr, true);
1988
1989 vif->cab_queue = 0;
1990 vif->hw_queue[IEEE80211_AC_VO] = 0;
1991 vif->hw_queue[IEEE80211_AC_VI] = 1;
1992 vif->hw_queue[IEEE80211_AC_BE] = 2;
1993 vif->hw_queue[IEEE80211_AC_BK] = 3;
1994
1995 return 0;
1996 }
1997
1998
mac80211_hwsim_change_interface(struct ieee80211_hw * hw,struct ieee80211_vif * vif,enum nl80211_iftype newtype,bool newp2p)1999 static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
2000 struct ieee80211_vif *vif,
2001 enum nl80211_iftype newtype,
2002 bool newp2p)
2003 {
2004 newtype = ieee80211_iftype_p2p(newtype, newp2p);
2005 wiphy_dbg(hw->wiphy,
2006 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
2007 __func__, ieee80211_vif_type_p2p(vif),
2008 newtype, vif->addr);
2009 hwsim_check_magic(vif);
2010
2011 /*
2012 * interface may change from non-AP to AP in
2013 * which case this needs to be set up again
2014 */
2015 vif->cab_queue = 0;
2016
2017 return 0;
2018 }
2019
mac80211_hwsim_remove_interface(struct ieee80211_hw * hw,struct ieee80211_vif * vif)2020 static void mac80211_hwsim_remove_interface(
2021 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
2022 {
2023 wiphy_dbg(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2024 __func__, ieee80211_vif_type_p2p(vif),
2025 vif->addr);
2026 hwsim_check_magic(vif);
2027 hwsim_clear_magic(vif);
2028 if (vif->type != NL80211_IFTYPE_MONITOR)
2029 mac80211_hwsim_config_mac_nl(hw, vif->addr, false);
2030 }
2031
mac80211_hwsim_tx_frame(struct ieee80211_hw * hw,struct sk_buff * skb,struct ieee80211_channel * chan)2032 static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
2033 struct sk_buff *skb,
2034 struct ieee80211_channel *chan)
2035 {
2036 struct mac80211_hwsim_data *data = hw->priv;
2037 u32 _pid = READ_ONCE(data->wmediumd);
2038
2039 if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE)) {
2040 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
2041 ieee80211_get_tx_rates(txi->control.vif, NULL, skb,
2042 txi->control.rates,
2043 ARRAY_SIZE(txi->control.rates));
2044 }
2045
2046 mac80211_hwsim_monitor_rx(hw, skb, chan);
2047
2048 if (_pid || hwsim_virtio_enabled)
2049 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid, chan);
2050
2051 data->tx_pkts++;
2052 data->tx_bytes += skb->len;
2053 mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
2054 dev_kfree_skb(skb);
2055 }
2056
mac80211_hwsim_beacon_tx(void * arg,u8 * mac,struct ieee80211_vif * vif)2057 static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
2058 struct ieee80211_vif *vif)
2059 {
2060 struct mac80211_hwsim_link_data *link_data = arg;
2061 u32 link_id = link_data->link_id;
2062 struct ieee80211_bss_conf *link_conf;
2063 struct mac80211_hwsim_data *data =
2064 container_of(link_data, struct mac80211_hwsim_data,
2065 link_data[link_id]);
2066 struct ieee80211_hw *hw = data->hw;
2067 struct ieee80211_tx_info *info;
2068 struct ieee80211_rate *txrate;
2069 struct ieee80211_mgmt *mgmt;
2070 struct sk_buff *skb;
2071 /* TODO: get MCS */
2072 int bitrate = 100;
2073
2074 hwsim_check_magic(vif);
2075
2076 link_conf = rcu_dereference(vif->link_conf[link_id]);
2077 if (!link_conf)
2078 return;
2079
2080 if (vif->type != NL80211_IFTYPE_AP &&
2081 vif->type != NL80211_IFTYPE_MESH_POINT &&
2082 vif->type != NL80211_IFTYPE_ADHOC &&
2083 vif->type != NL80211_IFTYPE_OCB)
2084 return;
2085
2086 skb = ieee80211_beacon_get(hw, vif, link_data->link_id);
2087 if (skb == NULL)
2088 return;
2089 info = IEEE80211_SKB_CB(skb);
2090 if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE))
2091 ieee80211_get_tx_rates(vif, NULL, skb,
2092 info->control.rates,
2093 ARRAY_SIZE(info->control.rates));
2094
2095 txrate = ieee80211_get_tx_rate(hw, info);
2096 if (txrate)
2097 bitrate = txrate->bitrate;
2098
2099 mgmt = (struct ieee80211_mgmt *) skb->data;
2100 /* fake header transmission time */
2101 data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
2102 if (ieee80211_is_s1g_beacon(mgmt->frame_control)) {
2103 struct ieee80211_ext *ext = (void *) mgmt;
2104
2105 ext->u.s1g_beacon.timestamp = cpu_to_le32(data->abs_bcn_ts +
2106 data->tsf_offset +
2107 10 * 8 * 10 /
2108 bitrate);
2109 } else {
2110 mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
2111 data->tsf_offset +
2112 24 * 8 * 10 /
2113 bitrate);
2114 }
2115
2116 mac80211_hwsim_tx_frame(hw, skb,
2117 rcu_dereference(link_conf->chanctx_conf)->def.chan);
2118
2119 while ((skb = ieee80211_get_buffered_bc(hw, vif)) != NULL) {
2120 mac80211_hwsim_tx_frame(hw, skb,
2121 rcu_dereference(link_conf->chanctx_conf)->def.chan);
2122 }
2123
2124 if (link_conf->csa_active && ieee80211_beacon_cntdwn_is_complete(vif))
2125 ieee80211_csa_finish(vif);
2126 }
2127
2128 static enum hrtimer_restart
mac80211_hwsim_beacon(struct hrtimer * timer)2129 mac80211_hwsim_beacon(struct hrtimer *timer)
2130 {
2131 struct mac80211_hwsim_link_data *link_data =
2132 container_of(timer, struct mac80211_hwsim_link_data, beacon_timer);
2133 struct mac80211_hwsim_data *data =
2134 container_of(link_data, struct mac80211_hwsim_data,
2135 link_data[link_data->link_id]);
2136 struct ieee80211_hw *hw = data->hw;
2137 u64 bcn_int = link_data->beacon_int;
2138
2139 if (!data->started)
2140 return HRTIMER_NORESTART;
2141
2142 ieee80211_iterate_active_interfaces_atomic(
2143 hw, IEEE80211_IFACE_ITER_NORMAL,
2144 mac80211_hwsim_beacon_tx, link_data);
2145
2146 /* beacon at new TBTT + beacon interval */
2147 if (data->bcn_delta) {
2148 bcn_int -= data->bcn_delta;
2149 data->bcn_delta = 0;
2150 }
2151 hrtimer_forward_now(&link_data->beacon_timer,
2152 ns_to_ktime(bcn_int * NSEC_PER_USEC));
2153 return HRTIMER_RESTART;
2154 }
2155
2156 static const char * const hwsim_chanwidths[] = {
2157 [NL80211_CHAN_WIDTH_5] = "ht5",
2158 [NL80211_CHAN_WIDTH_10] = "ht10",
2159 [NL80211_CHAN_WIDTH_20_NOHT] = "noht",
2160 [NL80211_CHAN_WIDTH_20] = "ht20",
2161 [NL80211_CHAN_WIDTH_40] = "ht40",
2162 [NL80211_CHAN_WIDTH_80] = "vht80",
2163 [NL80211_CHAN_WIDTH_80P80] = "vht80p80",
2164 [NL80211_CHAN_WIDTH_160] = "vht160",
2165 [NL80211_CHAN_WIDTH_1] = "1MHz",
2166 [NL80211_CHAN_WIDTH_2] = "2MHz",
2167 [NL80211_CHAN_WIDTH_4] = "4MHz",
2168 [NL80211_CHAN_WIDTH_8] = "8MHz",
2169 [NL80211_CHAN_WIDTH_16] = "16MHz",
2170 };
2171
mac80211_hwsim_config(struct ieee80211_hw * hw,u32 changed)2172 static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
2173 {
2174 struct mac80211_hwsim_data *data = hw->priv;
2175 struct ieee80211_conf *conf = &hw->conf;
2176 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
2177 [IEEE80211_SMPS_AUTOMATIC] = "auto",
2178 [IEEE80211_SMPS_OFF] = "off",
2179 [IEEE80211_SMPS_STATIC] = "static",
2180 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
2181 };
2182 int idx;
2183
2184 if (conf->chandef.chan)
2185 wiphy_dbg(hw->wiphy,
2186 "%s (freq=%d(%d - %d)/%s idle=%d ps=%d smps=%s)\n",
2187 __func__,
2188 conf->chandef.chan->center_freq,
2189 conf->chandef.center_freq1,
2190 conf->chandef.center_freq2,
2191 hwsim_chanwidths[conf->chandef.width],
2192 !!(conf->flags & IEEE80211_CONF_IDLE),
2193 !!(conf->flags & IEEE80211_CONF_PS),
2194 smps_modes[conf->smps_mode]);
2195 else
2196 wiphy_dbg(hw->wiphy,
2197 "%s (freq=0 idle=%d ps=%d smps=%s)\n",
2198 __func__,
2199 !!(conf->flags & IEEE80211_CONF_IDLE),
2200 !!(conf->flags & IEEE80211_CONF_PS),
2201 smps_modes[conf->smps_mode]);
2202
2203 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
2204
2205 WARN_ON(conf->chandef.chan && data->use_chanctx);
2206
2207 mutex_lock(&data->mutex);
2208 if (data->scanning && conf->chandef.chan) {
2209 for (idx = 0; idx < ARRAY_SIZE(data->survey_data); idx++) {
2210 if (data->survey_data[idx].channel == data->channel) {
2211 data->survey_data[idx].start =
2212 data->survey_data[idx].next_start;
2213 data->survey_data[idx].end = jiffies;
2214 break;
2215 }
2216 }
2217
2218 data->channel = conf->chandef.chan;
2219 data->bw = conf->chandef.width;
2220
2221 for (idx = 0; idx < ARRAY_SIZE(data->survey_data); idx++) {
2222 if (data->survey_data[idx].channel &&
2223 data->survey_data[idx].channel != data->channel)
2224 continue;
2225 data->survey_data[idx].channel = data->channel;
2226 data->survey_data[idx].next_start = jiffies;
2227 break;
2228 }
2229 } else {
2230 data->channel = conf->chandef.chan;
2231 data->bw = conf->chandef.width;
2232 }
2233 mutex_unlock(&data->mutex);
2234
2235 for (idx = 0; idx < ARRAY_SIZE(data->link_data); idx++) {
2236 struct mac80211_hwsim_link_data *link_data =
2237 &data->link_data[idx];
2238
2239 if (!data->started || !link_data->beacon_int) {
2240 hrtimer_cancel(&link_data->beacon_timer);
2241 } else if (!hrtimer_is_queued(&link_data->beacon_timer)) {
2242 u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
2243 u32 bcn_int = link_data->beacon_int;
2244 u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
2245
2246 hrtimer_start(&link_data->beacon_timer,
2247 ns_to_ktime(until_tbtt * NSEC_PER_USEC),
2248 HRTIMER_MODE_REL_SOFT);
2249 }
2250 }
2251
2252 return 0;
2253 }
2254
2255
mac80211_hwsim_configure_filter(struct ieee80211_hw * hw,unsigned int changed_flags,unsigned int * total_flags,u64 multicast)2256 static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
2257 unsigned int changed_flags,
2258 unsigned int *total_flags,u64 multicast)
2259 {
2260 struct mac80211_hwsim_data *data = hw->priv;
2261
2262 wiphy_dbg(hw->wiphy, "%s\n", __func__);
2263
2264 data->rx_filter = 0;
2265 if (*total_flags & FIF_ALLMULTI)
2266 data->rx_filter |= FIF_ALLMULTI;
2267 if (*total_flags & FIF_MCAST_ACTION)
2268 data->rx_filter |= FIF_MCAST_ACTION;
2269
2270 *total_flags = data->rx_filter;
2271 }
2272
mac80211_hwsim_bcn_en_iter(void * data,u8 * mac,struct ieee80211_vif * vif)2273 static void mac80211_hwsim_bcn_en_iter(void *data, u8 *mac,
2274 struct ieee80211_vif *vif)
2275 {
2276 unsigned int *count = data;
2277 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
2278
2279 if (vp->bcn_en)
2280 (*count)++;
2281 }
2282
mac80211_hwsim_vif_info_changed(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u64 changed)2283 static void mac80211_hwsim_vif_info_changed(struct ieee80211_hw *hw,
2284 struct ieee80211_vif *vif,
2285 u64 changed)
2286 {
2287 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
2288
2289 hwsim_check_magic(vif);
2290
2291 wiphy_dbg(hw->wiphy, "%s(changed=0x%llx vif->addr=%pM)\n",
2292 __func__, changed, vif->addr);
2293
2294 if (changed & BSS_CHANGED_ASSOC) {
2295 wiphy_dbg(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
2296 vif->cfg.assoc, vif->cfg.aid);
2297 vp->assoc = vif->cfg.assoc;
2298 vp->aid = vif->cfg.aid;
2299 }
2300 }
2301
mac80211_hwsim_link_info_changed(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * info,u64 changed)2302 static void mac80211_hwsim_link_info_changed(struct ieee80211_hw *hw,
2303 struct ieee80211_vif *vif,
2304 struct ieee80211_bss_conf *info,
2305 u64 changed)
2306 {
2307 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
2308 struct mac80211_hwsim_data *data = hw->priv;
2309 unsigned int link_id = info->link_id;
2310 struct mac80211_hwsim_link_data *link_data = &data->link_data[link_id];
2311
2312 hwsim_check_magic(vif);
2313
2314 wiphy_dbg(hw->wiphy, "%s(changed=0x%llx vif->addr=%pM, link id %u)\n",
2315 __func__, (unsigned long long)changed, vif->addr, link_id);
2316
2317 if (changed & BSS_CHANGED_BSSID) {
2318 wiphy_dbg(hw->wiphy, "%s: BSSID changed: %pM\n",
2319 __func__, info->bssid);
2320 memcpy(vp->bssid, info->bssid, ETH_ALEN);
2321 }
2322
2323 if (changed & BSS_CHANGED_BEACON_ENABLED) {
2324 wiphy_dbg(hw->wiphy, " BCN EN: %d (BI=%u)\n",
2325 info->enable_beacon, info->beacon_int);
2326 vp->bcn_en = info->enable_beacon;
2327 if (data->started &&
2328 !hrtimer_is_queued(&link_data->beacon_timer) &&
2329 info->enable_beacon) {
2330 u64 tsf, until_tbtt;
2331 u32 bcn_int;
2332 link_data->beacon_int = info->beacon_int * 1024;
2333 tsf = mac80211_hwsim_get_tsf(hw, vif);
2334 bcn_int = link_data->beacon_int;
2335 until_tbtt = bcn_int - do_div(tsf, bcn_int);
2336
2337 hrtimer_start(&link_data->beacon_timer,
2338 ns_to_ktime(until_tbtt * NSEC_PER_USEC),
2339 HRTIMER_MODE_REL_SOFT);
2340 } else if (!info->enable_beacon) {
2341 unsigned int count = 0;
2342 ieee80211_iterate_active_interfaces_atomic(
2343 data->hw, IEEE80211_IFACE_ITER_NORMAL,
2344 mac80211_hwsim_bcn_en_iter, &count);
2345 wiphy_dbg(hw->wiphy, " beaconing vifs remaining: %u",
2346 count);
2347 if (count == 0) {
2348 hrtimer_cancel(&link_data->beacon_timer);
2349 link_data->beacon_int = 0;
2350 }
2351 }
2352 }
2353
2354 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
2355 wiphy_dbg(hw->wiphy, " ERP_CTS_PROT: %d\n",
2356 info->use_cts_prot);
2357 }
2358
2359 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
2360 wiphy_dbg(hw->wiphy, " ERP_PREAMBLE: %d\n",
2361 info->use_short_preamble);
2362 }
2363
2364 if (changed & BSS_CHANGED_ERP_SLOT) {
2365 wiphy_dbg(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
2366 }
2367
2368 if (changed & BSS_CHANGED_HT) {
2369 wiphy_dbg(hw->wiphy, " HT: op_mode=0x%x\n",
2370 info->ht_operation_mode);
2371 }
2372
2373 if (changed & BSS_CHANGED_BASIC_RATES) {
2374 wiphy_dbg(hw->wiphy, " BASIC_RATES: 0x%llx\n",
2375 (unsigned long long) info->basic_rates);
2376 }
2377
2378 if (changed & BSS_CHANGED_TXPOWER)
2379 wiphy_dbg(hw->wiphy, " TX Power: %d dBm\n", info->txpower);
2380 }
2381
2382 static void
mac80211_hwsim_sta_rc_update(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,u32 changed)2383 mac80211_hwsim_sta_rc_update(struct ieee80211_hw *hw,
2384 struct ieee80211_vif *vif,
2385 struct ieee80211_sta *sta,
2386 u32 changed)
2387 {
2388 struct mac80211_hwsim_data *data = hw->priv;
2389 u32 bw = U32_MAX;
2390 int link_id;
2391
2392 rcu_read_lock();
2393 for (link_id = 0;
2394 link_id < ARRAY_SIZE(vif->link_conf);
2395 link_id++) {
2396 enum nl80211_chan_width confbw = NL80211_CHAN_WIDTH_20_NOHT;
2397 struct ieee80211_bss_conf *vif_conf;
2398 struct ieee80211_link_sta *link_sta;
2399
2400 link_sta = rcu_dereference(sta->link[link_id]);
2401
2402 if (!link_sta)
2403 continue;
2404
2405 switch (link_sta->bandwidth) {
2406 #define C(_bw) case IEEE80211_STA_RX_BW_##_bw: bw = _bw; break
2407 C(20);
2408 C(40);
2409 C(80);
2410 C(160);
2411 C(320);
2412 #undef C
2413 }
2414
2415 if (!data->use_chanctx) {
2416 confbw = data->bw;
2417 } else {
2418 struct ieee80211_chanctx_conf *chanctx_conf;
2419
2420 vif_conf = rcu_dereference(vif->link_conf[link_id]);
2421 if (WARN_ON(!vif_conf))
2422 continue;
2423
2424 chanctx_conf = rcu_dereference(vif_conf->chanctx_conf);
2425
2426 if (!WARN_ON(!chanctx_conf))
2427 confbw = chanctx_conf->def.width;
2428 }
2429
2430 WARN(bw > hwsim_get_chanwidth(confbw),
2431 "intf %pM [link=%d]: bad STA %pM bandwidth %d MHz (%d) > channel config %d MHz (%d)\n",
2432 vif->addr, link_id, sta->addr, bw, sta->deflink.bandwidth,
2433 hwsim_get_chanwidth(data->bw), data->bw);
2434
2435
2436 }
2437 rcu_read_unlock();
2438
2439
2440 }
2441
mac80211_hwsim_sta_add(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta)2442 static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
2443 struct ieee80211_vif *vif,
2444 struct ieee80211_sta *sta)
2445 {
2446 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
2447
2448 hwsim_check_magic(vif);
2449 hwsim_set_sta_magic(sta);
2450 mac80211_hwsim_sta_rc_update(hw, vif, sta, 0);
2451
2452 if (sta->valid_links) {
2453 WARN(hweight16(sta->valid_links) > 1,
2454 "expect to add STA with single link, have 0x%x\n",
2455 sta->valid_links);
2456 sp->active_links_rx = sta->valid_links;
2457 }
2458
2459 return 0;
2460 }
2461
mac80211_hwsim_sta_remove(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta)2462 static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
2463 struct ieee80211_vif *vif,
2464 struct ieee80211_sta *sta)
2465 {
2466 hwsim_check_magic(vif);
2467 hwsim_clear_sta_magic(sta);
2468
2469 return 0;
2470 }
2471
mac80211_hwsim_sta_state(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,enum ieee80211_sta_state old_state,enum ieee80211_sta_state new_state)2472 static int mac80211_hwsim_sta_state(struct ieee80211_hw *hw,
2473 struct ieee80211_vif *vif,
2474 struct ieee80211_sta *sta,
2475 enum ieee80211_sta_state old_state,
2476 enum ieee80211_sta_state new_state)
2477 {
2478 if (new_state == IEEE80211_STA_NOTEXIST)
2479 return mac80211_hwsim_sta_remove(hw, vif, sta);
2480
2481 if (old_state == IEEE80211_STA_NOTEXIST)
2482 return mac80211_hwsim_sta_add(hw, vif, sta);
2483
2484 /*
2485 * when client is authorized (AP station marked as such),
2486 * enable all links
2487 */
2488 if (vif->type == NL80211_IFTYPE_STATION &&
2489 new_state == IEEE80211_STA_AUTHORIZED && !sta->tdls)
2490 ieee80211_set_active_links_async(vif, vif->valid_links);
2491
2492 return 0;
2493 }
2494
mac80211_hwsim_sta_notify(struct ieee80211_hw * hw,struct ieee80211_vif * vif,enum sta_notify_cmd cmd,struct ieee80211_sta * sta)2495 static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
2496 struct ieee80211_vif *vif,
2497 enum sta_notify_cmd cmd,
2498 struct ieee80211_sta *sta)
2499 {
2500 hwsim_check_magic(vif);
2501
2502 switch (cmd) {
2503 case STA_NOTIFY_SLEEP:
2504 case STA_NOTIFY_AWAKE:
2505 /* TODO: make good use of these flags */
2506 break;
2507 default:
2508 WARN(1, "Invalid sta notify: %d\n", cmd);
2509 break;
2510 }
2511 }
2512
mac80211_hwsim_set_tim(struct ieee80211_hw * hw,struct ieee80211_sta * sta,bool set)2513 static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
2514 struct ieee80211_sta *sta,
2515 bool set)
2516 {
2517 hwsim_check_sta_magic(sta);
2518 return 0;
2519 }
2520
mac80211_hwsim_conf_tx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,unsigned int link_id,u16 queue,const struct ieee80211_tx_queue_params * params)2521 static int mac80211_hwsim_conf_tx(struct ieee80211_hw *hw,
2522 struct ieee80211_vif *vif,
2523 unsigned int link_id, u16 queue,
2524 const struct ieee80211_tx_queue_params *params)
2525 {
2526 wiphy_dbg(hw->wiphy,
2527 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
2528 __func__, queue,
2529 params->txop, params->cw_min,
2530 params->cw_max, params->aifs);
2531 return 0;
2532 }
2533
mac80211_hwsim_get_survey(struct ieee80211_hw * hw,int idx,struct survey_info * survey)2534 static int mac80211_hwsim_get_survey(struct ieee80211_hw *hw, int idx,
2535 struct survey_info *survey)
2536 {
2537 struct mac80211_hwsim_data *hwsim = hw->priv;
2538
2539 if (idx < 0 || idx >= ARRAY_SIZE(hwsim->survey_data))
2540 return -ENOENT;
2541
2542 mutex_lock(&hwsim->mutex);
2543 survey->channel = hwsim->survey_data[idx].channel;
2544 if (!survey->channel) {
2545 mutex_unlock(&hwsim->mutex);
2546 return -ENOENT;
2547 }
2548
2549 /*
2550 * Magically conjured dummy values --- this is only ok for simulated hardware.
2551 *
2552 * A real driver which cannot determine real values noise MUST NOT
2553 * report any, especially not a magically conjured ones :-)
2554 */
2555 survey->filled = SURVEY_INFO_NOISE_DBM |
2556 SURVEY_INFO_TIME |
2557 SURVEY_INFO_TIME_BUSY;
2558 survey->noise = -92;
2559 survey->time =
2560 jiffies_to_msecs(hwsim->survey_data[idx].end -
2561 hwsim->survey_data[idx].start);
2562 /* report 12.5% of channel time is used */
2563 survey->time_busy = survey->time/8;
2564 mutex_unlock(&hwsim->mutex);
2565
2566 return 0;
2567 }
2568
2569 #ifdef CONFIG_NL80211_TESTMODE
2570 /*
2571 * This section contains example code for using netlink
2572 * attributes with the testmode command in nl80211.
2573 */
2574
2575 /* These enums need to be kept in sync with userspace */
2576 enum hwsim_testmode_attr {
2577 __HWSIM_TM_ATTR_INVALID = 0,
2578 HWSIM_TM_ATTR_CMD = 1,
2579 HWSIM_TM_ATTR_PS = 2,
2580
2581 /* keep last */
2582 __HWSIM_TM_ATTR_AFTER_LAST,
2583 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
2584 };
2585
2586 enum hwsim_testmode_cmd {
2587 HWSIM_TM_CMD_SET_PS = 0,
2588 HWSIM_TM_CMD_GET_PS = 1,
2589 HWSIM_TM_CMD_STOP_QUEUES = 2,
2590 HWSIM_TM_CMD_WAKE_QUEUES = 3,
2591 };
2592
2593 static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
2594 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
2595 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
2596 };
2597
mac80211_hwsim_testmode_cmd(struct ieee80211_hw * hw,struct ieee80211_vif * vif,void * data,int len)2598 static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
2599 struct ieee80211_vif *vif,
2600 void *data, int len)
2601 {
2602 struct mac80211_hwsim_data *hwsim = hw->priv;
2603 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
2604 struct sk_buff *skb;
2605 int err, ps;
2606
2607 err = nla_parse_deprecated(tb, HWSIM_TM_ATTR_MAX, data, len,
2608 hwsim_testmode_policy, NULL);
2609 if (err)
2610 return err;
2611
2612 if (!tb[HWSIM_TM_ATTR_CMD])
2613 return -EINVAL;
2614
2615 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
2616 case HWSIM_TM_CMD_SET_PS:
2617 if (!tb[HWSIM_TM_ATTR_PS])
2618 return -EINVAL;
2619 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
2620 return hwsim_fops_ps_write(hwsim, ps);
2621 case HWSIM_TM_CMD_GET_PS:
2622 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
2623 nla_total_size(sizeof(u32)));
2624 if (!skb)
2625 return -ENOMEM;
2626 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
2627 goto nla_put_failure;
2628 return cfg80211_testmode_reply(skb);
2629 case HWSIM_TM_CMD_STOP_QUEUES:
2630 ieee80211_stop_queues(hw);
2631 return 0;
2632 case HWSIM_TM_CMD_WAKE_QUEUES:
2633 ieee80211_wake_queues(hw);
2634 return 0;
2635 default:
2636 return -EOPNOTSUPP;
2637 }
2638
2639 nla_put_failure:
2640 kfree_skb(skb);
2641 return -ENOBUFS;
2642 }
2643 #endif
2644
mac80211_hwsim_ampdu_action(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_ampdu_params * params)2645 static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
2646 struct ieee80211_vif *vif,
2647 struct ieee80211_ampdu_params *params)
2648 {
2649 struct ieee80211_sta *sta = params->sta;
2650 enum ieee80211_ampdu_mlme_action action = params->action;
2651 u16 tid = params->tid;
2652
2653 switch (action) {
2654 case IEEE80211_AMPDU_TX_START:
2655 return IEEE80211_AMPDU_TX_START_IMMEDIATE;
2656 case IEEE80211_AMPDU_TX_STOP_CONT:
2657 case IEEE80211_AMPDU_TX_STOP_FLUSH:
2658 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
2659 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
2660 break;
2661 case IEEE80211_AMPDU_TX_OPERATIONAL:
2662 break;
2663 case IEEE80211_AMPDU_RX_START:
2664 case IEEE80211_AMPDU_RX_STOP:
2665 break;
2666 default:
2667 return -EOPNOTSUPP;
2668 }
2669
2670 return 0;
2671 }
2672
mac80211_hwsim_flush(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u32 queues,bool drop)2673 static void mac80211_hwsim_flush(struct ieee80211_hw *hw,
2674 struct ieee80211_vif *vif,
2675 u32 queues, bool drop)
2676 {
2677 /* Not implemented, queues only on kernel side */
2678 }
2679
hw_scan_work(struct work_struct * work)2680 static void hw_scan_work(struct work_struct *work)
2681 {
2682 struct mac80211_hwsim_data *hwsim =
2683 container_of(work, struct mac80211_hwsim_data, hw_scan.work);
2684 struct cfg80211_scan_request *req = hwsim->hw_scan_request;
2685 int dwell, i;
2686
2687 mutex_lock(&hwsim->mutex);
2688 if (hwsim->scan_chan_idx >= req->n_channels) {
2689 struct cfg80211_scan_info info = {
2690 .aborted = false,
2691 };
2692
2693 wiphy_dbg(hwsim->hw->wiphy, "hw scan complete\n");
2694 ieee80211_scan_completed(hwsim->hw, &info);
2695 hwsim->hw_scan_request = NULL;
2696 hwsim->hw_scan_vif = NULL;
2697 hwsim->tmp_chan = NULL;
2698 mutex_unlock(&hwsim->mutex);
2699 mac80211_hwsim_config_mac_nl(hwsim->hw, hwsim->scan_addr,
2700 false);
2701 return;
2702 }
2703
2704 wiphy_dbg(hwsim->hw->wiphy, "hw scan %d MHz\n",
2705 req->channels[hwsim->scan_chan_idx]->center_freq);
2706
2707 hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
2708 if (hwsim->tmp_chan->flags & (IEEE80211_CHAN_NO_IR |
2709 IEEE80211_CHAN_RADAR) ||
2710 !req->n_ssids) {
2711 dwell = 120;
2712 } else {
2713 dwell = 30;
2714 /* send probes */
2715 for (i = 0; i < req->n_ssids; i++) {
2716 struct sk_buff *probe;
2717 struct ieee80211_mgmt *mgmt;
2718
2719 probe = ieee80211_probereq_get(hwsim->hw,
2720 hwsim->scan_addr,
2721 req->ssids[i].ssid,
2722 req->ssids[i].ssid_len,
2723 req->ie_len);
2724 if (!probe)
2725 continue;
2726
2727 mgmt = (struct ieee80211_mgmt *) probe->data;
2728 memcpy(mgmt->da, req->bssid, ETH_ALEN);
2729 memcpy(mgmt->bssid, req->bssid, ETH_ALEN);
2730
2731 if (req->ie_len)
2732 skb_put_data(probe, req->ie, req->ie_len);
2733
2734 rcu_read_lock();
2735 if (!ieee80211_tx_prepare_skb(hwsim->hw,
2736 hwsim->hw_scan_vif,
2737 probe,
2738 hwsim->tmp_chan->band,
2739 NULL)) {
2740 rcu_read_unlock();
2741 kfree_skb(probe);
2742 continue;
2743 }
2744
2745 local_bh_disable();
2746 mac80211_hwsim_tx_frame(hwsim->hw, probe,
2747 hwsim->tmp_chan);
2748 rcu_read_unlock();
2749 local_bh_enable();
2750 }
2751 }
2752 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
2753 msecs_to_jiffies(dwell));
2754 hwsim->survey_data[hwsim->scan_chan_idx].channel = hwsim->tmp_chan;
2755 hwsim->survey_data[hwsim->scan_chan_idx].start = jiffies;
2756 hwsim->survey_data[hwsim->scan_chan_idx].end =
2757 jiffies + msecs_to_jiffies(dwell);
2758 hwsim->scan_chan_idx++;
2759 mutex_unlock(&hwsim->mutex);
2760 }
2761
mac80211_hwsim_hw_scan(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_scan_request * hw_req)2762 static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
2763 struct ieee80211_vif *vif,
2764 struct ieee80211_scan_request *hw_req)
2765 {
2766 struct mac80211_hwsim_data *hwsim = hw->priv;
2767 struct cfg80211_scan_request *req = &hw_req->req;
2768
2769 mutex_lock(&hwsim->mutex);
2770 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
2771 mutex_unlock(&hwsim->mutex);
2772 return -EBUSY;
2773 }
2774 hwsim->hw_scan_request = req;
2775 hwsim->hw_scan_vif = vif;
2776 hwsim->scan_chan_idx = 0;
2777 if (req->flags & NL80211_SCAN_FLAG_RANDOM_ADDR)
2778 get_random_mask_addr(hwsim->scan_addr,
2779 hw_req->req.mac_addr,
2780 hw_req->req.mac_addr_mask);
2781 else
2782 memcpy(hwsim->scan_addr, vif->addr, ETH_ALEN);
2783 memset(hwsim->survey_data, 0, sizeof(hwsim->survey_data));
2784 mutex_unlock(&hwsim->mutex);
2785
2786 mac80211_hwsim_config_mac_nl(hw, hwsim->scan_addr, true);
2787 wiphy_dbg(hw->wiphy, "hwsim hw_scan request\n");
2788
2789 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
2790
2791 return 0;
2792 }
2793
mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw * hw,struct ieee80211_vif * vif)2794 static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
2795 struct ieee80211_vif *vif)
2796 {
2797 struct mac80211_hwsim_data *hwsim = hw->priv;
2798 struct cfg80211_scan_info info = {
2799 .aborted = true,
2800 };
2801
2802 wiphy_dbg(hw->wiphy, "hwsim cancel_hw_scan\n");
2803
2804 cancel_delayed_work_sync(&hwsim->hw_scan);
2805
2806 mutex_lock(&hwsim->mutex);
2807 ieee80211_scan_completed(hwsim->hw, &info);
2808 hwsim->tmp_chan = NULL;
2809 hwsim->hw_scan_request = NULL;
2810 hwsim->hw_scan_vif = NULL;
2811 mutex_unlock(&hwsim->mutex);
2812 }
2813
mac80211_hwsim_sw_scan(struct ieee80211_hw * hw,struct ieee80211_vif * vif,const u8 * mac_addr)2814 static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw,
2815 struct ieee80211_vif *vif,
2816 const u8 *mac_addr)
2817 {
2818 struct mac80211_hwsim_data *hwsim = hw->priv;
2819
2820 mutex_lock(&hwsim->mutex);
2821
2822 if (hwsim->scanning) {
2823 pr_debug("two hwsim sw_scans detected!\n");
2824 goto out;
2825 }
2826
2827 pr_debug("hwsim sw_scan request, prepping stuff\n");
2828
2829 memcpy(hwsim->scan_addr, mac_addr, ETH_ALEN);
2830 mac80211_hwsim_config_mac_nl(hw, hwsim->scan_addr, true);
2831 hwsim->scanning = true;
2832 memset(hwsim->survey_data, 0, sizeof(hwsim->survey_data));
2833
2834 out:
2835 mutex_unlock(&hwsim->mutex);
2836 }
2837
mac80211_hwsim_sw_scan_complete(struct ieee80211_hw * hw,struct ieee80211_vif * vif)2838 static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw,
2839 struct ieee80211_vif *vif)
2840 {
2841 struct mac80211_hwsim_data *hwsim = hw->priv;
2842
2843 mutex_lock(&hwsim->mutex);
2844
2845 pr_debug("hwsim sw_scan_complete\n");
2846 hwsim->scanning = false;
2847 mac80211_hwsim_config_mac_nl(hw, hwsim->scan_addr, false);
2848 eth_zero_addr(hwsim->scan_addr);
2849
2850 mutex_unlock(&hwsim->mutex);
2851 }
2852
hw_roc_start(struct work_struct * work)2853 static void hw_roc_start(struct work_struct *work)
2854 {
2855 struct mac80211_hwsim_data *hwsim =
2856 container_of(work, struct mac80211_hwsim_data, roc_start.work);
2857
2858 mutex_lock(&hwsim->mutex);
2859
2860 wiphy_dbg(hwsim->hw->wiphy, "hwsim ROC begins\n");
2861 hwsim->tmp_chan = hwsim->roc_chan;
2862 ieee80211_ready_on_channel(hwsim->hw);
2863
2864 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->roc_done,
2865 msecs_to_jiffies(hwsim->roc_duration));
2866
2867 mutex_unlock(&hwsim->mutex);
2868 }
2869
hw_roc_done(struct work_struct * work)2870 static void hw_roc_done(struct work_struct *work)
2871 {
2872 struct mac80211_hwsim_data *hwsim =
2873 container_of(work, struct mac80211_hwsim_data, roc_done.work);
2874
2875 mutex_lock(&hwsim->mutex);
2876 ieee80211_remain_on_channel_expired(hwsim->hw);
2877 hwsim->tmp_chan = NULL;
2878 mutex_unlock(&hwsim->mutex);
2879
2880 wiphy_dbg(hwsim->hw->wiphy, "hwsim ROC expired\n");
2881 }
2882
mac80211_hwsim_roc(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_channel * chan,int duration,enum ieee80211_roc_type type)2883 static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
2884 struct ieee80211_vif *vif,
2885 struct ieee80211_channel *chan,
2886 int duration,
2887 enum ieee80211_roc_type type)
2888 {
2889 struct mac80211_hwsim_data *hwsim = hw->priv;
2890
2891 mutex_lock(&hwsim->mutex);
2892 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
2893 mutex_unlock(&hwsim->mutex);
2894 return -EBUSY;
2895 }
2896
2897 hwsim->roc_chan = chan;
2898 hwsim->roc_duration = duration;
2899 mutex_unlock(&hwsim->mutex);
2900
2901 wiphy_dbg(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
2902 chan->center_freq, duration);
2903 ieee80211_queue_delayed_work(hw, &hwsim->roc_start, HZ/50);
2904
2905 return 0;
2906 }
2907
mac80211_hwsim_croc(struct ieee80211_hw * hw,struct ieee80211_vif * vif)2908 static int mac80211_hwsim_croc(struct ieee80211_hw *hw,
2909 struct ieee80211_vif *vif)
2910 {
2911 struct mac80211_hwsim_data *hwsim = hw->priv;
2912
2913 cancel_delayed_work_sync(&hwsim->roc_start);
2914 cancel_delayed_work_sync(&hwsim->roc_done);
2915
2916 mutex_lock(&hwsim->mutex);
2917 hwsim->tmp_chan = NULL;
2918 mutex_unlock(&hwsim->mutex);
2919
2920 wiphy_dbg(hw->wiphy, "hwsim ROC canceled\n");
2921
2922 return 0;
2923 }
2924
mac80211_hwsim_add_chanctx(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * ctx)2925 static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
2926 struct ieee80211_chanctx_conf *ctx)
2927 {
2928 hwsim_set_chanctx_magic(ctx);
2929 wiphy_dbg(hw->wiphy,
2930 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2931 ctx->def.chan->center_freq, ctx->def.width,
2932 ctx->def.center_freq1, ctx->def.center_freq2);
2933 return 0;
2934 }
2935
mac80211_hwsim_remove_chanctx(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * ctx)2936 static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
2937 struct ieee80211_chanctx_conf *ctx)
2938 {
2939 wiphy_dbg(hw->wiphy,
2940 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2941 ctx->def.chan->center_freq, ctx->def.width,
2942 ctx->def.center_freq1, ctx->def.center_freq2);
2943 hwsim_check_chanctx_magic(ctx);
2944 hwsim_clear_chanctx_magic(ctx);
2945 }
2946
mac80211_hwsim_change_chanctx(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * ctx,u32 changed)2947 static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
2948 struct ieee80211_chanctx_conf *ctx,
2949 u32 changed)
2950 {
2951 hwsim_check_chanctx_magic(ctx);
2952 wiphy_dbg(hw->wiphy,
2953 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2954 ctx->def.chan->center_freq, ctx->def.width,
2955 ctx->def.center_freq1, ctx->def.center_freq2);
2956 }
2957
mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf,struct ieee80211_chanctx_conf * ctx)2958 static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
2959 struct ieee80211_vif *vif,
2960 struct ieee80211_bss_conf *link_conf,
2961 struct ieee80211_chanctx_conf *ctx)
2962 {
2963 hwsim_check_magic(vif);
2964 hwsim_check_chanctx_magic(ctx);
2965
2966 /* if we activate a link while already associated wake it up */
2967 if (vif->type == NL80211_IFTYPE_STATION && vif->cfg.assoc) {
2968 struct sk_buff *skb;
2969
2970 skb = ieee80211_nullfunc_get(hw, vif, link_conf->link_id, true);
2971 if (skb) {
2972 local_bh_disable();
2973 mac80211_hwsim_tx_frame(hw, skb, ctx->def.chan);
2974 local_bh_enable();
2975 }
2976 }
2977
2978 return 0;
2979 }
2980
mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf,struct ieee80211_chanctx_conf * ctx)2981 static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
2982 struct ieee80211_vif *vif,
2983 struct ieee80211_bss_conf *link_conf,
2984 struct ieee80211_chanctx_conf *ctx)
2985 {
2986 hwsim_check_magic(vif);
2987 hwsim_check_chanctx_magic(ctx);
2988
2989 /* if we deactivate a link while associated suspend it first */
2990 if (vif->type == NL80211_IFTYPE_STATION && vif->cfg.assoc) {
2991 struct sk_buff *skb;
2992
2993 skb = ieee80211_nullfunc_get(hw, vif, link_conf->link_id, true);
2994 if (skb) {
2995 struct ieee80211_hdr *hdr = (void *)skb->data;
2996
2997 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
2998
2999 local_bh_disable();
3000 mac80211_hwsim_tx_frame(hw, skb, ctx->def.chan);
3001 local_bh_enable();
3002 }
3003 }
3004 }
3005
3006 static const char mac80211_hwsim_gstrings_stats[][ETH_GSTRING_LEN] = {
3007 "tx_pkts_nic",
3008 "tx_bytes_nic",
3009 "rx_pkts_nic",
3010 "rx_bytes_nic",
3011 "d_tx_dropped",
3012 "d_tx_failed",
3013 "d_ps_mode",
3014 "d_group",
3015 };
3016
3017 #define MAC80211_HWSIM_SSTATS_LEN ARRAY_SIZE(mac80211_hwsim_gstrings_stats)
3018
mac80211_hwsim_get_et_strings(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u32 sset,u8 * data)3019 static void mac80211_hwsim_get_et_strings(struct ieee80211_hw *hw,
3020 struct ieee80211_vif *vif,
3021 u32 sset, u8 *data)
3022 {
3023 if (sset == ETH_SS_STATS)
3024 memcpy(data, *mac80211_hwsim_gstrings_stats,
3025 sizeof(mac80211_hwsim_gstrings_stats));
3026 }
3027
mac80211_hwsim_get_et_sset_count(struct ieee80211_hw * hw,struct ieee80211_vif * vif,int sset)3028 static int mac80211_hwsim_get_et_sset_count(struct ieee80211_hw *hw,
3029 struct ieee80211_vif *vif, int sset)
3030 {
3031 if (sset == ETH_SS_STATS)
3032 return MAC80211_HWSIM_SSTATS_LEN;
3033 return 0;
3034 }
3035
mac80211_hwsim_get_et_stats(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ethtool_stats * stats,u64 * data)3036 static void mac80211_hwsim_get_et_stats(struct ieee80211_hw *hw,
3037 struct ieee80211_vif *vif,
3038 struct ethtool_stats *stats, u64 *data)
3039 {
3040 struct mac80211_hwsim_data *ar = hw->priv;
3041 int i = 0;
3042
3043 data[i++] = ar->tx_pkts;
3044 data[i++] = ar->tx_bytes;
3045 data[i++] = ar->rx_pkts;
3046 data[i++] = ar->rx_bytes;
3047 data[i++] = ar->tx_dropped;
3048 data[i++] = ar->tx_failed;
3049 data[i++] = ar->ps;
3050 data[i++] = ar->group;
3051
3052 WARN_ON(i != MAC80211_HWSIM_SSTATS_LEN);
3053 }
3054
mac80211_hwsim_tx_last_beacon(struct ieee80211_hw * hw)3055 static int mac80211_hwsim_tx_last_beacon(struct ieee80211_hw *hw)
3056 {
3057 return 1;
3058 }
3059
mac80211_hwsim_set_rts_threshold(struct ieee80211_hw * hw,u32 value)3060 static int mac80211_hwsim_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
3061 {
3062 return -EOPNOTSUPP;
3063 }
3064
mac80211_hwsim_change_vif_links(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u16 old_links,u16 new_links,struct ieee80211_bss_conf * old[IEEE80211_MLD_MAX_NUM_LINKS])3065 static int mac80211_hwsim_change_vif_links(struct ieee80211_hw *hw,
3066 struct ieee80211_vif *vif,
3067 u16 old_links, u16 new_links,
3068 struct ieee80211_bss_conf *old[IEEE80211_MLD_MAX_NUM_LINKS])
3069 {
3070 unsigned long rem = old_links & ~new_links;
3071 unsigned long add = new_links & ~old_links;
3072 int i;
3073
3074 if (!old_links)
3075 rem |= BIT(0);
3076 if (!new_links)
3077 add |= BIT(0);
3078
3079 for_each_set_bit(i, &rem, IEEE80211_MLD_MAX_NUM_LINKS)
3080 mac80211_hwsim_config_mac_nl(hw, old[i]->addr, false);
3081
3082 for_each_set_bit(i, &add, IEEE80211_MLD_MAX_NUM_LINKS) {
3083 struct ieee80211_bss_conf *link_conf;
3084
3085 link_conf = link_conf_dereference_protected(vif, i);
3086 if (WARN_ON(!link_conf))
3087 continue;
3088
3089 mac80211_hwsim_config_mac_nl(hw, link_conf->addr, true);
3090 }
3091
3092 return 0;
3093 }
3094
mac80211_hwsim_change_sta_links(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,u16 old_links,u16 new_links)3095 static int mac80211_hwsim_change_sta_links(struct ieee80211_hw *hw,
3096 struct ieee80211_vif *vif,
3097 struct ieee80211_sta *sta,
3098 u16 old_links, u16 new_links)
3099 {
3100 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
3101
3102 hwsim_check_sta_magic(sta);
3103
3104 if (vif->type == NL80211_IFTYPE_STATION)
3105 sp->active_links_rx = new_links;
3106
3107 return 0;
3108 }
3109
3110 #define HWSIM_COMMON_OPS \
3111 .tx = mac80211_hwsim_tx, \
3112 .start = mac80211_hwsim_start, \
3113 .stop = mac80211_hwsim_stop, \
3114 .add_interface = mac80211_hwsim_add_interface, \
3115 .change_interface = mac80211_hwsim_change_interface, \
3116 .remove_interface = mac80211_hwsim_remove_interface, \
3117 .config = mac80211_hwsim_config, \
3118 .configure_filter = mac80211_hwsim_configure_filter, \
3119 .vif_cfg_changed = mac80211_hwsim_vif_info_changed, \
3120 .link_info_changed = mac80211_hwsim_link_info_changed, \
3121 .tx_last_beacon = mac80211_hwsim_tx_last_beacon, \
3122 .sta_notify = mac80211_hwsim_sta_notify, \
3123 .sta_rc_update = mac80211_hwsim_sta_rc_update, \
3124 .conf_tx = mac80211_hwsim_conf_tx, \
3125 .get_survey = mac80211_hwsim_get_survey, \
3126 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd) \
3127 .ampdu_action = mac80211_hwsim_ampdu_action, \
3128 .flush = mac80211_hwsim_flush, \
3129 .get_et_sset_count = mac80211_hwsim_get_et_sset_count, \
3130 .get_et_stats = mac80211_hwsim_get_et_stats, \
3131 .get_et_strings = mac80211_hwsim_get_et_strings,
3132
3133 #define HWSIM_NON_MLO_OPS \
3134 .sta_add = mac80211_hwsim_sta_add, \
3135 .sta_remove = mac80211_hwsim_sta_remove, \
3136 .set_tim = mac80211_hwsim_set_tim, \
3137 .get_tsf = mac80211_hwsim_get_tsf, \
3138 .set_tsf = mac80211_hwsim_set_tsf,
3139
3140 static const struct ieee80211_ops mac80211_hwsim_ops = {
3141 HWSIM_COMMON_OPS
3142 HWSIM_NON_MLO_OPS
3143 .sw_scan_start = mac80211_hwsim_sw_scan,
3144 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
3145 };
3146
3147 #define HWSIM_CHANCTX_OPS \
3148 .hw_scan = mac80211_hwsim_hw_scan, \
3149 .cancel_hw_scan = mac80211_hwsim_cancel_hw_scan, \
3150 .remain_on_channel = mac80211_hwsim_roc, \
3151 .cancel_remain_on_channel = mac80211_hwsim_croc, \
3152 .add_chanctx = mac80211_hwsim_add_chanctx, \
3153 .remove_chanctx = mac80211_hwsim_remove_chanctx, \
3154 .change_chanctx = mac80211_hwsim_change_chanctx, \
3155 .assign_vif_chanctx = mac80211_hwsim_assign_vif_chanctx,\
3156 .unassign_vif_chanctx = mac80211_hwsim_unassign_vif_chanctx,
3157
3158 static const struct ieee80211_ops mac80211_hwsim_mchan_ops = {
3159 HWSIM_COMMON_OPS
3160 HWSIM_NON_MLO_OPS
3161 HWSIM_CHANCTX_OPS
3162 };
3163
3164 static const struct ieee80211_ops mac80211_hwsim_mlo_ops = {
3165 HWSIM_COMMON_OPS
3166 HWSIM_CHANCTX_OPS
3167 .set_rts_threshold = mac80211_hwsim_set_rts_threshold,
3168 .change_vif_links = mac80211_hwsim_change_vif_links,
3169 .change_sta_links = mac80211_hwsim_change_sta_links,
3170 .sta_state = mac80211_hwsim_sta_state,
3171 };
3172
3173 struct hwsim_new_radio_params {
3174 unsigned int channels;
3175 const char *reg_alpha2;
3176 const struct ieee80211_regdomain *regd;
3177 bool reg_strict;
3178 bool p2p_device;
3179 bool use_chanctx;
3180 bool destroy_on_close;
3181 const char *hwname;
3182 bool no_vif;
3183 const u8 *perm_addr;
3184 u32 iftypes;
3185 u32 *ciphers;
3186 u8 n_ciphers;
3187 bool mlo;
3188 };
3189
hwsim_mcast_config_msg(struct sk_buff * mcast_skb,struct genl_info * info)3190 static void hwsim_mcast_config_msg(struct sk_buff *mcast_skb,
3191 struct genl_info *info)
3192 {
3193 if (info)
3194 genl_notify(&hwsim_genl_family, mcast_skb, info,
3195 HWSIM_MCGRP_CONFIG, GFP_KERNEL);
3196 else
3197 genlmsg_multicast(&hwsim_genl_family, mcast_skb, 0,
3198 HWSIM_MCGRP_CONFIG, GFP_KERNEL);
3199 }
3200
append_radio_msg(struct sk_buff * skb,int id,struct hwsim_new_radio_params * param)3201 static int append_radio_msg(struct sk_buff *skb, int id,
3202 struct hwsim_new_radio_params *param)
3203 {
3204 int ret;
3205
3206 ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
3207 if (ret < 0)
3208 return ret;
3209
3210 if (param->channels) {
3211 ret = nla_put_u32(skb, HWSIM_ATTR_CHANNELS, param->channels);
3212 if (ret < 0)
3213 return ret;
3214 }
3215
3216 if (param->reg_alpha2) {
3217 ret = nla_put(skb, HWSIM_ATTR_REG_HINT_ALPHA2, 2,
3218 param->reg_alpha2);
3219 if (ret < 0)
3220 return ret;
3221 }
3222
3223 if (param->regd) {
3224 int i;
3225
3226 for (i = 0; i < ARRAY_SIZE(hwsim_world_regdom_custom); i++) {
3227 if (hwsim_world_regdom_custom[i] != param->regd)
3228 continue;
3229
3230 ret = nla_put_u32(skb, HWSIM_ATTR_REG_CUSTOM_REG, i);
3231 if (ret < 0)
3232 return ret;
3233 break;
3234 }
3235 }
3236
3237 if (param->reg_strict) {
3238 ret = nla_put_flag(skb, HWSIM_ATTR_REG_STRICT_REG);
3239 if (ret < 0)
3240 return ret;
3241 }
3242
3243 if (param->p2p_device) {
3244 ret = nla_put_flag(skb, HWSIM_ATTR_SUPPORT_P2P_DEVICE);
3245 if (ret < 0)
3246 return ret;
3247 }
3248
3249 if (param->use_chanctx) {
3250 ret = nla_put_flag(skb, HWSIM_ATTR_USE_CHANCTX);
3251 if (ret < 0)
3252 return ret;
3253 }
3254
3255 if (param->hwname) {
3256 ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME,
3257 strlen(param->hwname), param->hwname);
3258 if (ret < 0)
3259 return ret;
3260 }
3261
3262 return 0;
3263 }
3264
hwsim_mcast_new_radio(int id,struct genl_info * info,struct hwsim_new_radio_params * param)3265 static void hwsim_mcast_new_radio(int id, struct genl_info *info,
3266 struct hwsim_new_radio_params *param)
3267 {
3268 struct sk_buff *mcast_skb;
3269 void *data;
3270
3271 mcast_skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
3272 if (!mcast_skb)
3273 return;
3274
3275 data = genlmsg_put(mcast_skb, 0, 0, &hwsim_genl_family, 0,
3276 HWSIM_CMD_NEW_RADIO);
3277 if (!data)
3278 goto out_err;
3279
3280 if (append_radio_msg(mcast_skb, id, param) < 0)
3281 goto out_err;
3282
3283 genlmsg_end(mcast_skb, data);
3284
3285 hwsim_mcast_config_msg(mcast_skb, info);
3286 return;
3287
3288 out_err:
3289 nlmsg_free(mcast_skb);
3290 }
3291
3292 static const struct ieee80211_sband_iftype_data sband_capa_2ghz[] = {
3293 {
3294 .types_mask = BIT(NL80211_IFTYPE_STATION),
3295 .he_cap = {
3296 .has_he = true,
3297 .he_cap_elem = {
3298 .mac_cap_info[0] =
3299 IEEE80211_HE_MAC_CAP0_HTC_HE,
3300 .mac_cap_info[1] =
3301 IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US |
3302 IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
3303 .mac_cap_info[2] =
3304 IEEE80211_HE_MAC_CAP2_BSR |
3305 IEEE80211_HE_MAC_CAP2_MU_CASCADING |
3306 IEEE80211_HE_MAC_CAP2_ACK_EN,
3307 .mac_cap_info[3] =
3308 IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
3309 IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3,
3310 .mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU,
3311 .phy_cap_info[1] =
3312 IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
3313 IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
3314 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
3315 IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
3316 .phy_cap_info[2] =
3317 IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US |
3318 IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ |
3319 IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ |
3320 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO |
3321 IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO,
3322
3323 /* Leave all the other PHY capability bytes
3324 * unset, as DCM, beam forming, RU and PPE
3325 * threshold information are not supported
3326 */
3327 },
3328 .he_mcs_nss_supp = {
3329 .rx_mcs_80 = cpu_to_le16(0xfffa),
3330 .tx_mcs_80 = cpu_to_le16(0xfffa),
3331 .rx_mcs_160 = cpu_to_le16(0xffff),
3332 .tx_mcs_160 = cpu_to_le16(0xffff),
3333 .rx_mcs_80p80 = cpu_to_le16(0xffff),
3334 .tx_mcs_80p80 = cpu_to_le16(0xffff),
3335 },
3336 },
3337 .eht_cap = {
3338 .has_eht = true,
3339 .eht_cap_elem = {
3340 .mac_cap_info[0] =
3341 IEEE80211_EHT_MAC_CAP0_EPCS_PRIO_ACCESS |
3342 IEEE80211_EHT_MAC_CAP0_OM_CONTROL |
3343 IEEE80211_EHT_MAC_CAP0_TRIG_TXOP_SHARING_MODE1,
3344 .phy_cap_info[0] =
3345 IEEE80211_EHT_PHY_CAP0_242_TONE_RU_GT20MHZ |
3346 IEEE80211_EHT_PHY_CAP0_NDP_4_EHT_LFT_32_GI |
3347 IEEE80211_EHT_PHY_CAP0_PARTIAL_BW_UL_MU_MIMO |
3348 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER |
3349 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE,
3350 .phy_cap_info[3] =
3351 IEEE80211_EHT_PHY_CAP3_NG_16_SU_FEEDBACK |
3352 IEEE80211_EHT_PHY_CAP3_NG_16_MU_FEEDBACK |
3353 IEEE80211_EHT_PHY_CAP3_CODEBOOK_4_2_SU_FDBK |
3354 IEEE80211_EHT_PHY_CAP3_CODEBOOK_7_5_MU_FDBK |
3355 IEEE80211_EHT_PHY_CAP3_TRIG_SU_BF_FDBK |
3356 IEEE80211_EHT_PHY_CAP3_TRIG_MU_BF_PART_BW_FDBK |
3357 IEEE80211_EHT_PHY_CAP3_TRIG_CQI_FDBK,
3358 .phy_cap_info[4] =
3359 IEEE80211_EHT_PHY_CAP4_PART_BW_DL_MU_MIMO |
3360 IEEE80211_EHT_PHY_CAP4_PSR_SR_SUPP |
3361 IEEE80211_EHT_PHY_CAP4_POWER_BOOST_FACT_SUPP |
3362 IEEE80211_EHT_PHY_CAP4_EHT_MU_PPDU_4_EHT_LTF_08_GI |
3363 IEEE80211_EHT_PHY_CAP4_MAX_NC_MASK,
3364 .phy_cap_info[5] =
3365 IEEE80211_EHT_PHY_CAP5_NON_TRIG_CQI_FEEDBACK |
3366 IEEE80211_EHT_PHY_CAP5_TX_LESS_242_TONE_RU_SUPP |
3367 IEEE80211_EHT_PHY_CAP5_RX_LESS_242_TONE_RU_SUPP |
3368 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT |
3369 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK |
3370 IEEE80211_EHT_PHY_CAP5_MAX_NUM_SUPP_EHT_LTF_MASK,
3371 .phy_cap_info[6] =
3372 IEEE80211_EHT_PHY_CAP6_MAX_NUM_SUPP_EHT_LTF_MASK |
3373 IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_MASK,
3374 .phy_cap_info[7] =
3375 IEEE80211_EHT_PHY_CAP7_20MHZ_STA_RX_NDP_WIDER_BW,
3376 },
3377
3378 /* For all MCS and bandwidth, set 8 NSS for both Tx and
3379 * Rx
3380 */
3381 .eht_mcs_nss_supp = {
3382 /*
3383 * Since B0, B1, B2 and B3 are not set in
3384 * the supported channel width set field in the
3385 * HE PHY capabilities information field the
3386 * device is a 20MHz only device on 2.4GHz band.
3387 */
3388 .only_20mhz = {
3389 .rx_tx_mcs7_max_nss = 0x88,
3390 .rx_tx_mcs9_max_nss = 0x88,
3391 .rx_tx_mcs11_max_nss = 0x88,
3392 .rx_tx_mcs13_max_nss = 0x88,
3393 },
3394 },
3395 /* PPE threshold information is not supported */
3396 },
3397 },
3398 {
3399 .types_mask = BIT(NL80211_IFTYPE_AP),
3400 .he_cap = {
3401 .has_he = true,
3402 .he_cap_elem = {
3403 .mac_cap_info[0] =
3404 IEEE80211_HE_MAC_CAP0_HTC_HE,
3405 .mac_cap_info[1] =
3406 IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US |
3407 IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
3408 .mac_cap_info[2] =
3409 IEEE80211_HE_MAC_CAP2_BSR |
3410 IEEE80211_HE_MAC_CAP2_MU_CASCADING |
3411 IEEE80211_HE_MAC_CAP2_ACK_EN,
3412 .mac_cap_info[3] =
3413 IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
3414 IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3,
3415 .mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU,
3416 .phy_cap_info[1] =
3417 IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
3418 IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
3419 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
3420 IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
3421 .phy_cap_info[2] =
3422 IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US |
3423 IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ |
3424 IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ |
3425 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO |
3426 IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO,
3427
3428 /* Leave all the other PHY capability bytes
3429 * unset, as DCM, beam forming, RU and PPE
3430 * threshold information are not supported
3431 */
3432 },
3433 .he_mcs_nss_supp = {
3434 .rx_mcs_80 = cpu_to_le16(0xfffa),
3435 .tx_mcs_80 = cpu_to_le16(0xfffa),
3436 .rx_mcs_160 = cpu_to_le16(0xffff),
3437 .tx_mcs_160 = cpu_to_le16(0xffff),
3438 .rx_mcs_80p80 = cpu_to_le16(0xffff),
3439 .tx_mcs_80p80 = cpu_to_le16(0xffff),
3440 },
3441 },
3442 .eht_cap = {
3443 .has_eht = true,
3444 .eht_cap_elem = {
3445 .mac_cap_info[0] =
3446 IEEE80211_EHT_MAC_CAP0_EPCS_PRIO_ACCESS |
3447 IEEE80211_EHT_MAC_CAP0_OM_CONTROL |
3448 IEEE80211_EHT_MAC_CAP0_TRIG_TXOP_SHARING_MODE1,
3449 .phy_cap_info[0] =
3450 IEEE80211_EHT_PHY_CAP0_242_TONE_RU_GT20MHZ |
3451 IEEE80211_EHT_PHY_CAP0_NDP_4_EHT_LFT_32_GI |
3452 IEEE80211_EHT_PHY_CAP0_PARTIAL_BW_UL_MU_MIMO |
3453 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER |
3454 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE,
3455 .phy_cap_info[3] =
3456 IEEE80211_EHT_PHY_CAP3_NG_16_SU_FEEDBACK |
3457 IEEE80211_EHT_PHY_CAP3_NG_16_MU_FEEDBACK |
3458 IEEE80211_EHT_PHY_CAP3_CODEBOOK_4_2_SU_FDBK |
3459 IEEE80211_EHT_PHY_CAP3_CODEBOOK_7_5_MU_FDBK |
3460 IEEE80211_EHT_PHY_CAP3_TRIG_SU_BF_FDBK |
3461 IEEE80211_EHT_PHY_CAP3_TRIG_MU_BF_PART_BW_FDBK |
3462 IEEE80211_EHT_PHY_CAP3_TRIG_CQI_FDBK,
3463 .phy_cap_info[4] =
3464 IEEE80211_EHT_PHY_CAP4_PART_BW_DL_MU_MIMO |
3465 IEEE80211_EHT_PHY_CAP4_PSR_SR_SUPP |
3466 IEEE80211_EHT_PHY_CAP4_POWER_BOOST_FACT_SUPP |
3467 IEEE80211_EHT_PHY_CAP4_EHT_MU_PPDU_4_EHT_LTF_08_GI |
3468 IEEE80211_EHT_PHY_CAP4_MAX_NC_MASK,
3469 .phy_cap_info[5] =
3470 IEEE80211_EHT_PHY_CAP5_NON_TRIG_CQI_FEEDBACK |
3471 IEEE80211_EHT_PHY_CAP5_TX_LESS_242_TONE_RU_SUPP |
3472 IEEE80211_EHT_PHY_CAP5_RX_LESS_242_TONE_RU_SUPP |
3473 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT |
3474 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK |
3475 IEEE80211_EHT_PHY_CAP5_MAX_NUM_SUPP_EHT_LTF_MASK,
3476 .phy_cap_info[6] =
3477 IEEE80211_EHT_PHY_CAP6_MAX_NUM_SUPP_EHT_LTF_MASK |
3478 IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_MASK,
3479 .phy_cap_info[7] =
3480 IEEE80211_EHT_PHY_CAP7_20MHZ_STA_RX_NDP_WIDER_BW,
3481 },
3482
3483 /* For all MCS and bandwidth, set 8 NSS for both Tx and
3484 * Rx
3485 */
3486 .eht_mcs_nss_supp = {
3487 /*
3488 * Since B0, B1, B2 and B3 are not set in
3489 * the supported channel width set field in the
3490 * HE PHY capabilities information field the
3491 * device is a 20MHz only device on 2.4GHz band.
3492 */
3493 .only_20mhz = {
3494 .rx_tx_mcs7_max_nss = 0x88,
3495 .rx_tx_mcs9_max_nss = 0x88,
3496 .rx_tx_mcs11_max_nss = 0x88,
3497 .rx_tx_mcs13_max_nss = 0x88,
3498 },
3499 },
3500 /* PPE threshold information is not supported */
3501 },
3502 },
3503 #ifdef CONFIG_MAC80211_MESH
3504 {
3505 .types_mask = BIT(NL80211_IFTYPE_MESH_POINT),
3506 .he_cap = {
3507 .has_he = true,
3508 .he_cap_elem = {
3509 .mac_cap_info[0] =
3510 IEEE80211_HE_MAC_CAP0_HTC_HE,
3511 .mac_cap_info[1] =
3512 IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
3513 .mac_cap_info[2] =
3514 IEEE80211_HE_MAC_CAP2_ACK_EN,
3515 .mac_cap_info[3] =
3516 IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
3517 IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3,
3518 .mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU,
3519 .phy_cap_info[1] =
3520 IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
3521 IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
3522 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
3523 IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
3524 .phy_cap_info[2] = 0,
3525
3526 /* Leave all the other PHY capability bytes
3527 * unset, as DCM, beam forming, RU and PPE
3528 * threshold information are not supported
3529 */
3530 },
3531 .he_mcs_nss_supp = {
3532 .rx_mcs_80 = cpu_to_le16(0xfffa),
3533 .tx_mcs_80 = cpu_to_le16(0xfffa),
3534 .rx_mcs_160 = cpu_to_le16(0xffff),
3535 .tx_mcs_160 = cpu_to_le16(0xffff),
3536 .rx_mcs_80p80 = cpu_to_le16(0xffff),
3537 .tx_mcs_80p80 = cpu_to_le16(0xffff),
3538 },
3539 },
3540 },
3541 #endif
3542 };
3543
3544 static const struct ieee80211_sband_iftype_data sband_capa_5ghz[] = {
3545 {
3546 /* TODO: should we support other types, e.g., P2P? */
3547 .types_mask = BIT(NL80211_IFTYPE_STATION),
3548 .he_cap = {
3549 .has_he = true,
3550 .he_cap_elem = {
3551 .mac_cap_info[0] =
3552 IEEE80211_HE_MAC_CAP0_HTC_HE,
3553 .mac_cap_info[1] =
3554 IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US |
3555 IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
3556 .mac_cap_info[2] =
3557 IEEE80211_HE_MAC_CAP2_BSR |
3558 IEEE80211_HE_MAC_CAP2_MU_CASCADING |
3559 IEEE80211_HE_MAC_CAP2_ACK_EN,
3560 .mac_cap_info[3] =
3561 IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
3562 IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3,
3563 .mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU,
3564 .phy_cap_info[0] =
3565 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G |
3566 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G |
3567 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
3568 .phy_cap_info[1] =
3569 IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
3570 IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
3571 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
3572 IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
3573 .phy_cap_info[2] =
3574 IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US |
3575 IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ |
3576 IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ |
3577 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO |
3578 IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO,
3579
3580 /* Leave all the other PHY capability bytes
3581 * unset, as DCM, beam forming, RU and PPE
3582 * threshold information are not supported
3583 */
3584 },
3585 .he_mcs_nss_supp = {
3586 .rx_mcs_80 = cpu_to_le16(0xfffa),
3587 .tx_mcs_80 = cpu_to_le16(0xfffa),
3588 .rx_mcs_160 = cpu_to_le16(0xfffa),
3589 .tx_mcs_160 = cpu_to_le16(0xfffa),
3590 .rx_mcs_80p80 = cpu_to_le16(0xfffa),
3591 .tx_mcs_80p80 = cpu_to_le16(0xfffa),
3592 },
3593 },
3594 .eht_cap = {
3595 .has_eht = true,
3596 .eht_cap_elem = {
3597 .mac_cap_info[0] =
3598 IEEE80211_EHT_MAC_CAP0_EPCS_PRIO_ACCESS |
3599 IEEE80211_EHT_MAC_CAP0_OM_CONTROL |
3600 IEEE80211_EHT_MAC_CAP0_TRIG_TXOP_SHARING_MODE1,
3601 .phy_cap_info[0] =
3602 IEEE80211_EHT_PHY_CAP0_242_TONE_RU_GT20MHZ |
3603 IEEE80211_EHT_PHY_CAP0_NDP_4_EHT_LFT_32_GI |
3604 IEEE80211_EHT_PHY_CAP0_PARTIAL_BW_UL_MU_MIMO |
3605 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER |
3606 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE |
3607 IEEE80211_EHT_PHY_CAP0_BEAMFORMEE_SS_80MHZ_MASK,
3608 .phy_cap_info[1] =
3609 IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_80MHZ_MASK |
3610 IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_160MHZ_MASK,
3611 .phy_cap_info[2] =
3612 IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_80MHZ_MASK |
3613 IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_160MHZ_MASK,
3614 .phy_cap_info[3] =
3615 IEEE80211_EHT_PHY_CAP3_NG_16_SU_FEEDBACK |
3616 IEEE80211_EHT_PHY_CAP3_NG_16_MU_FEEDBACK |
3617 IEEE80211_EHT_PHY_CAP3_CODEBOOK_4_2_SU_FDBK |
3618 IEEE80211_EHT_PHY_CAP3_CODEBOOK_7_5_MU_FDBK |
3619 IEEE80211_EHT_PHY_CAP3_TRIG_SU_BF_FDBK |
3620 IEEE80211_EHT_PHY_CAP3_TRIG_MU_BF_PART_BW_FDBK |
3621 IEEE80211_EHT_PHY_CAP3_TRIG_CQI_FDBK,
3622 .phy_cap_info[4] =
3623 IEEE80211_EHT_PHY_CAP4_PART_BW_DL_MU_MIMO |
3624 IEEE80211_EHT_PHY_CAP4_PSR_SR_SUPP |
3625 IEEE80211_EHT_PHY_CAP4_POWER_BOOST_FACT_SUPP |
3626 IEEE80211_EHT_PHY_CAP4_EHT_MU_PPDU_4_EHT_LTF_08_GI |
3627 IEEE80211_EHT_PHY_CAP4_MAX_NC_MASK,
3628 .phy_cap_info[5] =
3629 IEEE80211_EHT_PHY_CAP5_NON_TRIG_CQI_FEEDBACK |
3630 IEEE80211_EHT_PHY_CAP5_TX_LESS_242_TONE_RU_SUPP |
3631 IEEE80211_EHT_PHY_CAP5_RX_LESS_242_TONE_RU_SUPP |
3632 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT |
3633 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK |
3634 IEEE80211_EHT_PHY_CAP5_MAX_NUM_SUPP_EHT_LTF_MASK,
3635 .phy_cap_info[6] =
3636 IEEE80211_EHT_PHY_CAP6_MAX_NUM_SUPP_EHT_LTF_MASK |
3637 IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_MASK,
3638 .phy_cap_info[7] =
3639 IEEE80211_EHT_PHY_CAP7_20MHZ_STA_RX_NDP_WIDER_BW |
3640 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_80MHZ |
3641 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_160MHZ |
3642 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ |
3643 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ,
3644 },
3645
3646 /* For all MCS and bandwidth, set 8 NSS for both Tx and
3647 * Rx
3648 */
3649 .eht_mcs_nss_supp = {
3650 /*
3651 * As B1 and B2 are set in the supported
3652 * channel width set field in the HE PHY
3653 * capabilities information field include all
3654 * the following MCS/NSS.
3655 */
3656 .bw._80 = {
3657 .rx_tx_mcs9_max_nss = 0x88,
3658 .rx_tx_mcs11_max_nss = 0x88,
3659 .rx_tx_mcs13_max_nss = 0x88,
3660 },
3661 .bw._160 = {
3662 .rx_tx_mcs9_max_nss = 0x88,
3663 .rx_tx_mcs11_max_nss = 0x88,
3664 .rx_tx_mcs13_max_nss = 0x88,
3665 },
3666 },
3667 /* PPE threshold information is not supported */
3668 },
3669 },
3670 {
3671 .types_mask = BIT(NL80211_IFTYPE_AP),
3672 .he_cap = {
3673 .has_he = true,
3674 .he_cap_elem = {
3675 .mac_cap_info[0] =
3676 IEEE80211_HE_MAC_CAP0_HTC_HE,
3677 .mac_cap_info[1] =
3678 IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US |
3679 IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
3680 .mac_cap_info[2] =
3681 IEEE80211_HE_MAC_CAP2_BSR |
3682 IEEE80211_HE_MAC_CAP2_MU_CASCADING |
3683 IEEE80211_HE_MAC_CAP2_ACK_EN,
3684 .mac_cap_info[3] =
3685 IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
3686 IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3,
3687 .mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU,
3688 .phy_cap_info[0] =
3689 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G |
3690 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G |
3691 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
3692 .phy_cap_info[1] =
3693 IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
3694 IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
3695 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
3696 IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
3697 .phy_cap_info[2] =
3698 IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US |
3699 IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ |
3700 IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ |
3701 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO |
3702 IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO,
3703
3704 /* Leave all the other PHY capability bytes
3705 * unset, as DCM, beam forming, RU and PPE
3706 * threshold information are not supported
3707 */
3708 },
3709 .he_mcs_nss_supp = {
3710 .rx_mcs_80 = cpu_to_le16(0xfffa),
3711 .tx_mcs_80 = cpu_to_le16(0xfffa),
3712 .rx_mcs_160 = cpu_to_le16(0xfffa),
3713 .tx_mcs_160 = cpu_to_le16(0xfffa),
3714 .rx_mcs_80p80 = cpu_to_le16(0xfffa),
3715 .tx_mcs_80p80 = cpu_to_le16(0xfffa),
3716 },
3717 },
3718 .eht_cap = {
3719 .has_eht = true,
3720 .eht_cap_elem = {
3721 .mac_cap_info[0] =
3722 IEEE80211_EHT_MAC_CAP0_EPCS_PRIO_ACCESS |
3723 IEEE80211_EHT_MAC_CAP0_OM_CONTROL |
3724 IEEE80211_EHT_MAC_CAP0_TRIG_TXOP_SHARING_MODE1,
3725 .phy_cap_info[0] =
3726 IEEE80211_EHT_PHY_CAP0_242_TONE_RU_GT20MHZ |
3727 IEEE80211_EHT_PHY_CAP0_NDP_4_EHT_LFT_32_GI |
3728 IEEE80211_EHT_PHY_CAP0_PARTIAL_BW_UL_MU_MIMO |
3729 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER |
3730 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE |
3731 IEEE80211_EHT_PHY_CAP0_BEAMFORMEE_SS_80MHZ_MASK,
3732 .phy_cap_info[1] =
3733 IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_80MHZ_MASK |
3734 IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_160MHZ_MASK,
3735 .phy_cap_info[2] =
3736 IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_80MHZ_MASK |
3737 IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_160MHZ_MASK,
3738 .phy_cap_info[3] =
3739 IEEE80211_EHT_PHY_CAP3_NG_16_SU_FEEDBACK |
3740 IEEE80211_EHT_PHY_CAP3_NG_16_MU_FEEDBACK |
3741 IEEE80211_EHT_PHY_CAP3_CODEBOOK_4_2_SU_FDBK |
3742 IEEE80211_EHT_PHY_CAP3_CODEBOOK_7_5_MU_FDBK |
3743 IEEE80211_EHT_PHY_CAP3_TRIG_SU_BF_FDBK |
3744 IEEE80211_EHT_PHY_CAP3_TRIG_MU_BF_PART_BW_FDBK |
3745 IEEE80211_EHT_PHY_CAP3_TRIG_CQI_FDBK,
3746 .phy_cap_info[4] =
3747 IEEE80211_EHT_PHY_CAP4_PART_BW_DL_MU_MIMO |
3748 IEEE80211_EHT_PHY_CAP4_PSR_SR_SUPP |
3749 IEEE80211_EHT_PHY_CAP4_POWER_BOOST_FACT_SUPP |
3750 IEEE80211_EHT_PHY_CAP4_EHT_MU_PPDU_4_EHT_LTF_08_GI |
3751 IEEE80211_EHT_PHY_CAP4_MAX_NC_MASK,
3752 .phy_cap_info[5] =
3753 IEEE80211_EHT_PHY_CAP5_NON_TRIG_CQI_FEEDBACK |
3754 IEEE80211_EHT_PHY_CAP5_TX_LESS_242_TONE_RU_SUPP |
3755 IEEE80211_EHT_PHY_CAP5_RX_LESS_242_TONE_RU_SUPP |
3756 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT |
3757 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK |
3758 IEEE80211_EHT_PHY_CAP5_MAX_NUM_SUPP_EHT_LTF_MASK,
3759 .phy_cap_info[6] =
3760 IEEE80211_EHT_PHY_CAP6_MAX_NUM_SUPP_EHT_LTF_MASK |
3761 IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_MASK,
3762 .phy_cap_info[7] =
3763 IEEE80211_EHT_PHY_CAP7_20MHZ_STA_RX_NDP_WIDER_BW |
3764 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_80MHZ |
3765 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_160MHZ |
3766 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ |
3767 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ,
3768 },
3769
3770 /* For all MCS and bandwidth, set 8 NSS for both Tx and
3771 * Rx
3772 */
3773 .eht_mcs_nss_supp = {
3774 /*
3775 * As B1 and B2 are set in the supported
3776 * channel width set field in the HE PHY
3777 * capabilities information field include all
3778 * the following MCS/NSS.
3779 */
3780 .bw._80 = {
3781 .rx_tx_mcs9_max_nss = 0x88,
3782 .rx_tx_mcs11_max_nss = 0x88,
3783 .rx_tx_mcs13_max_nss = 0x88,
3784 },
3785 .bw._160 = {
3786 .rx_tx_mcs9_max_nss = 0x88,
3787 .rx_tx_mcs11_max_nss = 0x88,
3788 .rx_tx_mcs13_max_nss = 0x88,
3789 },
3790 },
3791 /* PPE threshold information is not supported */
3792 },
3793 },
3794 #ifdef CONFIG_MAC80211_MESH
3795 {
3796 /* TODO: should we support other types, e.g., IBSS?*/
3797 .types_mask = BIT(NL80211_IFTYPE_MESH_POINT),
3798 .he_cap = {
3799 .has_he = true,
3800 .he_cap_elem = {
3801 .mac_cap_info[0] =
3802 IEEE80211_HE_MAC_CAP0_HTC_HE,
3803 .mac_cap_info[1] =
3804 IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
3805 .mac_cap_info[2] =
3806 IEEE80211_HE_MAC_CAP2_ACK_EN,
3807 .mac_cap_info[3] =
3808 IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
3809 IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3,
3810 .mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU,
3811 .phy_cap_info[0] =
3812 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G |
3813 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G |
3814 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
3815 .phy_cap_info[1] =
3816 IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
3817 IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
3818 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
3819 IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
3820 .phy_cap_info[2] = 0,
3821
3822 /* Leave all the other PHY capability bytes
3823 * unset, as DCM, beam forming, RU and PPE
3824 * threshold information are not supported
3825 */
3826 },
3827 .he_mcs_nss_supp = {
3828 .rx_mcs_80 = cpu_to_le16(0xfffa),
3829 .tx_mcs_80 = cpu_to_le16(0xfffa),
3830 .rx_mcs_160 = cpu_to_le16(0xfffa),
3831 .tx_mcs_160 = cpu_to_le16(0xfffa),
3832 .rx_mcs_80p80 = cpu_to_le16(0xfffa),
3833 .tx_mcs_80p80 = cpu_to_le16(0xfffa),
3834 },
3835 },
3836 },
3837 #endif
3838 };
3839
3840 static const struct ieee80211_sband_iftype_data sband_capa_6ghz[] = {
3841 {
3842 /* TODO: should we support other types, e.g., P2P? */
3843 .types_mask = BIT(NL80211_IFTYPE_STATION),
3844 .he_6ghz_capa = {
3845 .capa = cpu_to_le16(IEEE80211_HE_6GHZ_CAP_MIN_MPDU_START |
3846 IEEE80211_HE_6GHZ_CAP_MAX_AMPDU_LEN_EXP |
3847 IEEE80211_HE_6GHZ_CAP_MAX_MPDU_LEN |
3848 IEEE80211_HE_6GHZ_CAP_SM_PS |
3849 IEEE80211_HE_6GHZ_CAP_RD_RESPONDER |
3850 IEEE80211_HE_6GHZ_CAP_TX_ANTPAT_CONS |
3851 IEEE80211_HE_6GHZ_CAP_RX_ANTPAT_CONS),
3852 },
3853 .he_cap = {
3854 .has_he = true,
3855 .he_cap_elem = {
3856 .mac_cap_info[0] =
3857 IEEE80211_HE_MAC_CAP0_HTC_HE,
3858 .mac_cap_info[1] =
3859 IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US |
3860 IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
3861 .mac_cap_info[2] =
3862 IEEE80211_HE_MAC_CAP2_BSR |
3863 IEEE80211_HE_MAC_CAP2_MU_CASCADING |
3864 IEEE80211_HE_MAC_CAP2_ACK_EN,
3865 .mac_cap_info[3] =
3866 IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
3867 IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3,
3868 .mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU,
3869 .phy_cap_info[0] =
3870 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G |
3871 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G |
3872 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
3873 .phy_cap_info[1] =
3874 IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
3875 IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
3876 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
3877 IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
3878 .phy_cap_info[2] =
3879 IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US |
3880 IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ |
3881 IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ |
3882 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO |
3883 IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO,
3884
3885 /* Leave all the other PHY capability bytes
3886 * unset, as DCM, beam forming, RU and PPE
3887 * threshold information are not supported
3888 */
3889 },
3890 .he_mcs_nss_supp = {
3891 .rx_mcs_80 = cpu_to_le16(0xfffa),
3892 .tx_mcs_80 = cpu_to_le16(0xfffa),
3893 .rx_mcs_160 = cpu_to_le16(0xfffa),
3894 .tx_mcs_160 = cpu_to_le16(0xfffa),
3895 .rx_mcs_80p80 = cpu_to_le16(0xfffa),
3896 .tx_mcs_80p80 = cpu_to_le16(0xfffa),
3897 },
3898 },
3899 .eht_cap = {
3900 .has_eht = true,
3901 .eht_cap_elem = {
3902 .mac_cap_info[0] =
3903 IEEE80211_EHT_MAC_CAP0_EPCS_PRIO_ACCESS |
3904 IEEE80211_EHT_MAC_CAP0_OM_CONTROL |
3905 IEEE80211_EHT_MAC_CAP0_TRIG_TXOP_SHARING_MODE1,
3906 .phy_cap_info[0] =
3907 IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ |
3908 IEEE80211_EHT_PHY_CAP0_242_TONE_RU_GT20MHZ |
3909 IEEE80211_EHT_PHY_CAP0_NDP_4_EHT_LFT_32_GI |
3910 IEEE80211_EHT_PHY_CAP0_PARTIAL_BW_UL_MU_MIMO |
3911 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER |
3912 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE |
3913 IEEE80211_EHT_PHY_CAP0_BEAMFORMEE_SS_80MHZ_MASK,
3914 .phy_cap_info[1] =
3915 IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_80MHZ_MASK |
3916 IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_160MHZ_MASK |
3917 IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_320MHZ_MASK,
3918 .phy_cap_info[2] =
3919 IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_80MHZ_MASK |
3920 IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_160MHZ_MASK |
3921 IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_320MHZ_MASK,
3922 .phy_cap_info[3] =
3923 IEEE80211_EHT_PHY_CAP3_NG_16_SU_FEEDBACK |
3924 IEEE80211_EHT_PHY_CAP3_NG_16_MU_FEEDBACK |
3925 IEEE80211_EHT_PHY_CAP3_CODEBOOK_4_2_SU_FDBK |
3926 IEEE80211_EHT_PHY_CAP3_CODEBOOK_7_5_MU_FDBK |
3927 IEEE80211_EHT_PHY_CAP3_TRIG_SU_BF_FDBK |
3928 IEEE80211_EHT_PHY_CAP3_TRIG_MU_BF_PART_BW_FDBK |
3929 IEEE80211_EHT_PHY_CAP3_TRIG_CQI_FDBK,
3930 .phy_cap_info[4] =
3931 IEEE80211_EHT_PHY_CAP4_PART_BW_DL_MU_MIMO |
3932 IEEE80211_EHT_PHY_CAP4_PSR_SR_SUPP |
3933 IEEE80211_EHT_PHY_CAP4_POWER_BOOST_FACT_SUPP |
3934 IEEE80211_EHT_PHY_CAP4_EHT_MU_PPDU_4_EHT_LTF_08_GI |
3935 IEEE80211_EHT_PHY_CAP4_MAX_NC_MASK,
3936 .phy_cap_info[5] =
3937 IEEE80211_EHT_PHY_CAP5_NON_TRIG_CQI_FEEDBACK |
3938 IEEE80211_EHT_PHY_CAP5_TX_LESS_242_TONE_RU_SUPP |
3939 IEEE80211_EHT_PHY_CAP5_RX_LESS_242_TONE_RU_SUPP |
3940 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT |
3941 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK |
3942 IEEE80211_EHT_PHY_CAP5_MAX_NUM_SUPP_EHT_LTF_MASK,
3943 .phy_cap_info[6] =
3944 IEEE80211_EHT_PHY_CAP6_MAX_NUM_SUPP_EHT_LTF_MASK |
3945 IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_MASK |
3946 IEEE80211_EHT_PHY_CAP6_EHT_DUP_6GHZ_SUPP,
3947 .phy_cap_info[7] =
3948 IEEE80211_EHT_PHY_CAP7_20MHZ_STA_RX_NDP_WIDER_BW |
3949 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_80MHZ |
3950 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_160MHZ |
3951 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_320MHZ |
3952 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ |
3953 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ |
3954 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ,
3955 },
3956
3957 /* For all MCS and bandwidth, set 8 NSS for both Tx and
3958 * Rx
3959 */
3960 .eht_mcs_nss_supp = {
3961 /*
3962 * As B1 and B2 are set in the supported
3963 * channel width set field in the HE PHY
3964 * capabilities information field and 320MHz in
3965 * 6GHz is supported include all the following
3966 * MCS/NSS.
3967 */
3968 .bw._80 = {
3969 .rx_tx_mcs9_max_nss = 0x88,
3970 .rx_tx_mcs11_max_nss = 0x88,
3971 .rx_tx_mcs13_max_nss = 0x88,
3972 },
3973 .bw._160 = {
3974 .rx_tx_mcs9_max_nss = 0x88,
3975 .rx_tx_mcs11_max_nss = 0x88,
3976 .rx_tx_mcs13_max_nss = 0x88,
3977 },
3978 .bw._320 = {
3979 .rx_tx_mcs9_max_nss = 0x88,
3980 .rx_tx_mcs11_max_nss = 0x88,
3981 .rx_tx_mcs13_max_nss = 0x88,
3982 },
3983 },
3984 /* PPE threshold information is not supported */
3985 },
3986 },
3987 {
3988 .types_mask = BIT(NL80211_IFTYPE_AP),
3989 .he_6ghz_capa = {
3990 .capa = cpu_to_le16(IEEE80211_HE_6GHZ_CAP_MIN_MPDU_START |
3991 IEEE80211_HE_6GHZ_CAP_MAX_AMPDU_LEN_EXP |
3992 IEEE80211_HE_6GHZ_CAP_MAX_MPDU_LEN |
3993 IEEE80211_HE_6GHZ_CAP_SM_PS |
3994 IEEE80211_HE_6GHZ_CAP_RD_RESPONDER |
3995 IEEE80211_HE_6GHZ_CAP_TX_ANTPAT_CONS |
3996 IEEE80211_HE_6GHZ_CAP_RX_ANTPAT_CONS),
3997 },
3998 .he_cap = {
3999 .has_he = true,
4000 .he_cap_elem = {
4001 .mac_cap_info[0] =
4002 IEEE80211_HE_MAC_CAP0_HTC_HE,
4003 .mac_cap_info[1] =
4004 IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US |
4005 IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
4006 .mac_cap_info[2] =
4007 IEEE80211_HE_MAC_CAP2_BSR |
4008 IEEE80211_HE_MAC_CAP2_MU_CASCADING |
4009 IEEE80211_HE_MAC_CAP2_ACK_EN,
4010 .mac_cap_info[3] =
4011 IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
4012 IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3,
4013 .mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU,
4014 .phy_cap_info[0] =
4015 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G |
4016 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G |
4017 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
4018 .phy_cap_info[1] =
4019 IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
4020 IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
4021 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
4022 IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
4023 .phy_cap_info[2] =
4024 IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US |
4025 IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ |
4026 IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ |
4027 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO |
4028 IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO,
4029
4030 /* Leave all the other PHY capability bytes
4031 * unset, as DCM, beam forming, RU and PPE
4032 * threshold information are not supported
4033 */
4034 },
4035 .he_mcs_nss_supp = {
4036 .rx_mcs_80 = cpu_to_le16(0xfffa),
4037 .tx_mcs_80 = cpu_to_le16(0xfffa),
4038 .rx_mcs_160 = cpu_to_le16(0xfffa),
4039 .tx_mcs_160 = cpu_to_le16(0xfffa),
4040 .rx_mcs_80p80 = cpu_to_le16(0xfffa),
4041 .tx_mcs_80p80 = cpu_to_le16(0xfffa),
4042 },
4043 },
4044 .eht_cap = {
4045 .has_eht = true,
4046 .eht_cap_elem = {
4047 .mac_cap_info[0] =
4048 IEEE80211_EHT_MAC_CAP0_EPCS_PRIO_ACCESS |
4049 IEEE80211_EHT_MAC_CAP0_OM_CONTROL |
4050 IEEE80211_EHT_MAC_CAP0_TRIG_TXOP_SHARING_MODE1,
4051 .phy_cap_info[0] =
4052 IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ |
4053 IEEE80211_EHT_PHY_CAP0_242_TONE_RU_GT20MHZ |
4054 IEEE80211_EHT_PHY_CAP0_NDP_4_EHT_LFT_32_GI |
4055 IEEE80211_EHT_PHY_CAP0_PARTIAL_BW_UL_MU_MIMO |
4056 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER |
4057 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE |
4058 IEEE80211_EHT_PHY_CAP0_BEAMFORMEE_SS_80MHZ_MASK,
4059 .phy_cap_info[1] =
4060 IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_80MHZ_MASK |
4061 IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_160MHZ_MASK |
4062 IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_320MHZ_MASK,
4063 .phy_cap_info[2] =
4064 IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_80MHZ_MASK |
4065 IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_160MHZ_MASK |
4066 IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_320MHZ_MASK,
4067 .phy_cap_info[3] =
4068 IEEE80211_EHT_PHY_CAP3_NG_16_SU_FEEDBACK |
4069 IEEE80211_EHT_PHY_CAP3_NG_16_MU_FEEDBACK |
4070 IEEE80211_EHT_PHY_CAP3_CODEBOOK_4_2_SU_FDBK |
4071 IEEE80211_EHT_PHY_CAP3_CODEBOOK_7_5_MU_FDBK |
4072 IEEE80211_EHT_PHY_CAP3_TRIG_SU_BF_FDBK |
4073 IEEE80211_EHT_PHY_CAP3_TRIG_MU_BF_PART_BW_FDBK |
4074 IEEE80211_EHT_PHY_CAP3_TRIG_CQI_FDBK,
4075 .phy_cap_info[4] =
4076 IEEE80211_EHT_PHY_CAP4_PART_BW_DL_MU_MIMO |
4077 IEEE80211_EHT_PHY_CAP4_PSR_SR_SUPP |
4078 IEEE80211_EHT_PHY_CAP4_POWER_BOOST_FACT_SUPP |
4079 IEEE80211_EHT_PHY_CAP4_EHT_MU_PPDU_4_EHT_LTF_08_GI |
4080 IEEE80211_EHT_PHY_CAP4_MAX_NC_MASK,
4081 .phy_cap_info[5] =
4082 IEEE80211_EHT_PHY_CAP5_NON_TRIG_CQI_FEEDBACK |
4083 IEEE80211_EHT_PHY_CAP5_TX_LESS_242_TONE_RU_SUPP |
4084 IEEE80211_EHT_PHY_CAP5_RX_LESS_242_TONE_RU_SUPP |
4085 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT |
4086 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK |
4087 IEEE80211_EHT_PHY_CAP5_MAX_NUM_SUPP_EHT_LTF_MASK,
4088 .phy_cap_info[6] =
4089 IEEE80211_EHT_PHY_CAP6_MAX_NUM_SUPP_EHT_LTF_MASK |
4090 IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_MASK |
4091 IEEE80211_EHT_PHY_CAP6_EHT_DUP_6GHZ_SUPP,
4092 .phy_cap_info[7] =
4093 IEEE80211_EHT_PHY_CAP7_20MHZ_STA_RX_NDP_WIDER_BW |
4094 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_80MHZ |
4095 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_160MHZ |
4096 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_320MHZ |
4097 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ |
4098 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ |
4099 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ,
4100 },
4101
4102 /* For all MCS and bandwidth, set 8 NSS for both Tx and
4103 * Rx
4104 */
4105 .eht_mcs_nss_supp = {
4106 /*
4107 * As B1 and B2 are set in the supported
4108 * channel width set field in the HE PHY
4109 * capabilities information field and 320MHz in
4110 * 6GHz is supported include all the following
4111 * MCS/NSS.
4112 */
4113 .bw._80 = {
4114 .rx_tx_mcs9_max_nss = 0x88,
4115 .rx_tx_mcs11_max_nss = 0x88,
4116 .rx_tx_mcs13_max_nss = 0x88,
4117 },
4118 .bw._160 = {
4119 .rx_tx_mcs9_max_nss = 0x88,
4120 .rx_tx_mcs11_max_nss = 0x88,
4121 .rx_tx_mcs13_max_nss = 0x88,
4122 },
4123 .bw._320 = {
4124 .rx_tx_mcs9_max_nss = 0x88,
4125 .rx_tx_mcs11_max_nss = 0x88,
4126 .rx_tx_mcs13_max_nss = 0x88,
4127 },
4128 },
4129 /* PPE threshold information is not supported */
4130 },
4131 },
4132 #ifdef CONFIG_MAC80211_MESH
4133 {
4134 /* TODO: should we support other types, e.g., IBSS?*/
4135 .types_mask = BIT(NL80211_IFTYPE_MESH_POINT),
4136 .he_6ghz_capa = {
4137 .capa = cpu_to_le16(IEEE80211_HE_6GHZ_CAP_MIN_MPDU_START |
4138 IEEE80211_HE_6GHZ_CAP_MAX_AMPDU_LEN_EXP |
4139 IEEE80211_HE_6GHZ_CAP_MAX_MPDU_LEN |
4140 IEEE80211_HE_6GHZ_CAP_SM_PS |
4141 IEEE80211_HE_6GHZ_CAP_RD_RESPONDER |
4142 IEEE80211_HE_6GHZ_CAP_TX_ANTPAT_CONS |
4143 IEEE80211_HE_6GHZ_CAP_RX_ANTPAT_CONS),
4144 },
4145 .he_cap = {
4146 .has_he = true,
4147 .he_cap_elem = {
4148 .mac_cap_info[0] =
4149 IEEE80211_HE_MAC_CAP0_HTC_HE,
4150 .mac_cap_info[1] =
4151 IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
4152 .mac_cap_info[2] =
4153 IEEE80211_HE_MAC_CAP2_ACK_EN,
4154 .mac_cap_info[3] =
4155 IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
4156 IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3,
4157 .mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU,
4158 .phy_cap_info[0] =
4159 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G |
4160 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G |
4161 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
4162 .phy_cap_info[1] =
4163 IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
4164 IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
4165 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
4166 IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
4167 .phy_cap_info[2] = 0,
4168
4169 /* Leave all the other PHY capability bytes
4170 * unset, as DCM, beam forming, RU and PPE
4171 * threshold information are not supported
4172 */
4173 },
4174 .he_mcs_nss_supp = {
4175 .rx_mcs_80 = cpu_to_le16(0xfffa),
4176 .tx_mcs_80 = cpu_to_le16(0xfffa),
4177 .rx_mcs_160 = cpu_to_le16(0xfffa),
4178 .tx_mcs_160 = cpu_to_le16(0xfffa),
4179 .rx_mcs_80p80 = cpu_to_le16(0xfffa),
4180 .tx_mcs_80p80 = cpu_to_le16(0xfffa),
4181 },
4182 },
4183 },
4184 #endif
4185 };
4186
mac80211_hwsim_sband_capab(struct ieee80211_supported_band * sband)4187 static void mac80211_hwsim_sband_capab(struct ieee80211_supported_band *sband)
4188 {
4189 u16 n_iftype_data;
4190
4191 if (sband->band == NL80211_BAND_2GHZ) {
4192 n_iftype_data = ARRAY_SIZE(sband_capa_2ghz);
4193 sband->iftype_data =
4194 (struct ieee80211_sband_iftype_data *)sband_capa_2ghz;
4195 } else if (sband->band == NL80211_BAND_5GHZ) {
4196 n_iftype_data = ARRAY_SIZE(sband_capa_5ghz);
4197 sband->iftype_data =
4198 (struct ieee80211_sband_iftype_data *)sband_capa_5ghz;
4199 } else if (sband->band == NL80211_BAND_6GHZ) {
4200 n_iftype_data = ARRAY_SIZE(sband_capa_6ghz);
4201 sband->iftype_data =
4202 (struct ieee80211_sband_iftype_data *)sband_capa_6ghz;
4203 } else {
4204 return;
4205 }
4206
4207 sband->n_iftype_data = n_iftype_data;
4208 }
4209
4210 #ifdef CONFIG_MAC80211_MESH
4211 #define HWSIM_MESH_BIT BIT(NL80211_IFTYPE_MESH_POINT)
4212 #else
4213 #define HWSIM_MESH_BIT 0
4214 #endif
4215
4216 #define HWSIM_DEFAULT_IF_LIMIT \
4217 (BIT(NL80211_IFTYPE_STATION) | \
4218 BIT(NL80211_IFTYPE_P2P_CLIENT) | \
4219 BIT(NL80211_IFTYPE_AP) | \
4220 BIT(NL80211_IFTYPE_P2P_GO) | \
4221 HWSIM_MESH_BIT)
4222
4223 #define HWSIM_IFTYPE_SUPPORT_MASK \
4224 (BIT(NL80211_IFTYPE_STATION) | \
4225 BIT(NL80211_IFTYPE_AP) | \
4226 BIT(NL80211_IFTYPE_P2P_CLIENT) | \
4227 BIT(NL80211_IFTYPE_P2P_GO) | \
4228 BIT(NL80211_IFTYPE_ADHOC) | \
4229 BIT(NL80211_IFTYPE_MESH_POINT) | \
4230 BIT(NL80211_IFTYPE_OCB))
4231
mac80211_hwsim_new_radio(struct genl_info * info,struct hwsim_new_radio_params * param)4232 static int mac80211_hwsim_new_radio(struct genl_info *info,
4233 struct hwsim_new_radio_params *param)
4234 {
4235 int err;
4236 u8 addr[ETH_ALEN];
4237 struct mac80211_hwsim_data *data;
4238 struct ieee80211_hw *hw;
4239 enum nl80211_band band;
4240 const struct ieee80211_ops *ops = &mac80211_hwsim_ops;
4241 struct net *net;
4242 int idx, i;
4243 int n_limits = 0;
4244
4245 if (WARN_ON(param->channels > 1 && !param->use_chanctx))
4246 return -EINVAL;
4247
4248 spin_lock_bh(&hwsim_radio_lock);
4249 idx = hwsim_radio_idx++;
4250 spin_unlock_bh(&hwsim_radio_lock);
4251
4252 if (param->mlo)
4253 ops = &mac80211_hwsim_mlo_ops;
4254 else if (param->use_chanctx)
4255 ops = &mac80211_hwsim_mchan_ops;
4256 hw = ieee80211_alloc_hw_nm(sizeof(*data), ops, param->hwname);
4257 if (!hw) {
4258 pr_debug("mac80211_hwsim: ieee80211_alloc_hw failed\n");
4259 err = -ENOMEM;
4260 goto failed;
4261 }
4262
4263 /* ieee80211_alloc_hw_nm may have used a default name */
4264 param->hwname = wiphy_name(hw->wiphy);
4265
4266 if (info)
4267 net = genl_info_net(info);
4268 else
4269 net = &init_net;
4270 wiphy_net_set(hw->wiphy, net);
4271
4272 data = hw->priv;
4273 data->hw = hw;
4274
4275 data->dev = device_create(hwsim_class, NULL, 0, hw, "hwsim%d", idx);
4276 if (IS_ERR(data->dev)) {
4277 printk(KERN_DEBUG
4278 "mac80211_hwsim: device_create failed (%ld)\n",
4279 PTR_ERR(data->dev));
4280 err = -ENOMEM;
4281 goto failed_drvdata;
4282 }
4283 data->dev->driver = &mac80211_hwsim_driver.driver;
4284 err = device_bind_driver(data->dev);
4285 if (err != 0) {
4286 pr_debug("mac80211_hwsim: device_bind_driver failed (%d)\n",
4287 err);
4288 goto failed_bind;
4289 }
4290
4291 skb_queue_head_init(&data->pending);
4292
4293 SET_IEEE80211_DEV(hw, data->dev);
4294 if (!param->perm_addr) {
4295 eth_zero_addr(addr);
4296 addr[0] = 0x02;
4297 addr[3] = idx >> 8;
4298 addr[4] = idx;
4299 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
4300 /* Why need here second address ? */
4301 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
4302 data->addresses[1].addr[0] |= 0x40;
4303 hw->wiphy->n_addresses = 2;
4304 hw->wiphy->addresses = data->addresses;
4305 /* possible address clash is checked at hash table insertion */
4306 } else {
4307 memcpy(data->addresses[0].addr, param->perm_addr, ETH_ALEN);
4308 /* compatibility with automatically generated mac addr */
4309 memcpy(data->addresses[1].addr, param->perm_addr, ETH_ALEN);
4310 hw->wiphy->n_addresses = 2;
4311 hw->wiphy->addresses = data->addresses;
4312 }
4313
4314 data->channels = param->channels;
4315 data->use_chanctx = param->use_chanctx;
4316 data->idx = idx;
4317 data->destroy_on_close = param->destroy_on_close;
4318 if (info)
4319 data->portid = info->snd_portid;
4320
4321 /* setup interface limits, only on interface types we support */
4322 if (param->iftypes & BIT(NL80211_IFTYPE_ADHOC)) {
4323 data->if_limits[n_limits].max = 1;
4324 data->if_limits[n_limits].types = BIT(NL80211_IFTYPE_ADHOC);
4325 n_limits++;
4326 }
4327
4328 if (param->iftypes & HWSIM_DEFAULT_IF_LIMIT) {
4329 data->if_limits[n_limits].max = 2048;
4330 /*
4331 * For this case, we may only support a subset of
4332 * HWSIM_DEFAULT_IF_LIMIT, therefore we only want to add the
4333 * bits that both param->iftype & HWSIM_DEFAULT_IF_LIMIT have.
4334 */
4335 data->if_limits[n_limits].types =
4336 HWSIM_DEFAULT_IF_LIMIT & param->iftypes;
4337 n_limits++;
4338 }
4339
4340 if (param->iftypes & BIT(NL80211_IFTYPE_P2P_DEVICE)) {
4341 data->if_limits[n_limits].max = 1;
4342 data->if_limits[n_limits].types =
4343 BIT(NL80211_IFTYPE_P2P_DEVICE);
4344 n_limits++;
4345 }
4346
4347 if (data->use_chanctx) {
4348 hw->wiphy->max_scan_ssids = 255;
4349 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
4350 hw->wiphy->max_remain_on_channel_duration = 1000;
4351 data->if_combination.radar_detect_widths = 0;
4352 data->if_combination.num_different_channels = data->channels;
4353 } else {
4354 data->if_combination.num_different_channels = 1;
4355 data->if_combination.radar_detect_widths =
4356 BIT(NL80211_CHAN_WIDTH_5) |
4357 BIT(NL80211_CHAN_WIDTH_10) |
4358 BIT(NL80211_CHAN_WIDTH_20_NOHT) |
4359 BIT(NL80211_CHAN_WIDTH_20) |
4360 BIT(NL80211_CHAN_WIDTH_40) |
4361 BIT(NL80211_CHAN_WIDTH_80) |
4362 BIT(NL80211_CHAN_WIDTH_160);
4363 }
4364
4365 if (!n_limits) {
4366 err = -EINVAL;
4367 goto failed_hw;
4368 }
4369
4370 data->if_combination.max_interfaces = 0;
4371 for (i = 0; i < n_limits; i++)
4372 data->if_combination.max_interfaces +=
4373 data->if_limits[i].max;
4374
4375 data->if_combination.n_limits = n_limits;
4376 data->if_combination.limits = data->if_limits;
4377
4378 /*
4379 * If we actually were asked to support combinations,
4380 * advertise them - if there's only a single thing like
4381 * only IBSS then don't advertise it as combinations.
4382 */
4383 if (data->if_combination.max_interfaces > 1) {
4384 hw->wiphy->iface_combinations = &data->if_combination;
4385 hw->wiphy->n_iface_combinations = 1;
4386 }
4387
4388 if (param->ciphers) {
4389 memcpy(data->ciphers, param->ciphers,
4390 param->n_ciphers * sizeof(u32));
4391 hw->wiphy->cipher_suites = data->ciphers;
4392 hw->wiphy->n_cipher_suites = param->n_ciphers;
4393 }
4394
4395 data->rx_rssi = DEFAULT_RX_RSSI;
4396
4397 INIT_DELAYED_WORK(&data->roc_start, hw_roc_start);
4398 INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
4399 INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
4400
4401 hw->queues = 5;
4402 hw->offchannel_tx_hw_queue = 4;
4403
4404 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
4405 ieee80211_hw_set(hw, CHANCTX_STA_CSA);
4406 ieee80211_hw_set(hw, SUPPORTS_HT_CCK_RATES);
4407 ieee80211_hw_set(hw, QUEUE_CONTROL);
4408 ieee80211_hw_set(hw, WANT_MONITOR_VIF);
4409 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
4410 ieee80211_hw_set(hw, MFP_CAPABLE);
4411 ieee80211_hw_set(hw, SIGNAL_DBM);
4412 ieee80211_hw_set(hw, SUPPORTS_PS);
4413 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
4414 ieee80211_hw_set(hw, TDLS_WIDER_BW);
4415 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID);
4416
4417 if (param->mlo) {
4418 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_MLO;
4419 ieee80211_hw_set(hw, HAS_RATE_CONTROL);
4420 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
4421 ieee80211_hw_set(hw, CONNECTION_MONITOR);
4422 ieee80211_hw_set(hw, AP_LINK_PS);
4423 } else {
4424 ieee80211_hw_set(hw, HOST_BROADCAST_PS_BUFFERING);
4425 ieee80211_hw_set(hw, PS_NULLFUNC_STACK);
4426 if (rctbl)
4427 ieee80211_hw_set(hw, SUPPORTS_RC_TABLE);
4428 }
4429
4430 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
4431 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
4432 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
4433 WIPHY_FLAG_AP_UAPSD |
4434 WIPHY_FLAG_SUPPORTS_5_10_MHZ |
4435 WIPHY_FLAG_HAS_CHANNEL_SWITCH;
4436 hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR |
4437 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
4438 NL80211_FEATURE_STATIC_SMPS |
4439 NL80211_FEATURE_DYNAMIC_SMPS |
4440 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
4441 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS);
4442 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_BEACON_PROTECTION);
4443 wiphy_ext_feature_set(hw->wiphy,
4444 NL80211_EXT_FEATURE_MULTICAST_REGISTRATIONS);
4445 wiphy_ext_feature_set(hw->wiphy,
4446 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY);
4447
4448 hw->wiphy->interface_modes = param->iftypes;
4449
4450 /* ask mac80211 to reserve space for magic */
4451 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
4452 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
4453 hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
4454
4455 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
4456 sizeof(hwsim_channels_2ghz));
4457 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
4458 sizeof(hwsim_channels_5ghz));
4459 memcpy(data->channels_6ghz, hwsim_channels_6ghz,
4460 sizeof(hwsim_channels_6ghz));
4461 memcpy(data->channels_s1g, hwsim_channels_s1g,
4462 sizeof(hwsim_channels_s1g));
4463 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
4464
4465 for (band = NL80211_BAND_2GHZ; band < NUM_NL80211_BANDS; band++) {
4466 struct ieee80211_supported_band *sband = &data->bands[band];
4467
4468 sband->band = band;
4469
4470 switch (band) {
4471 case NL80211_BAND_2GHZ:
4472 sband->channels = data->channels_2ghz;
4473 sband->n_channels = ARRAY_SIZE(hwsim_channels_2ghz);
4474 sband->bitrates = data->rates;
4475 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
4476 break;
4477 case NL80211_BAND_5GHZ:
4478 sband->channels = data->channels_5ghz;
4479 sband->n_channels = ARRAY_SIZE(hwsim_channels_5ghz);
4480 sband->bitrates = data->rates + 4;
4481 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
4482
4483 sband->vht_cap.vht_supported = true;
4484 sband->vht_cap.cap =
4485 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
4486 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
4487 IEEE80211_VHT_CAP_RXLDPC |
4488 IEEE80211_VHT_CAP_SHORT_GI_80 |
4489 IEEE80211_VHT_CAP_SHORT_GI_160 |
4490 IEEE80211_VHT_CAP_TXSTBC |
4491 IEEE80211_VHT_CAP_RXSTBC_4 |
4492 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
4493 sband->vht_cap.vht_mcs.rx_mcs_map =
4494 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
4495 IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 |
4496 IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
4497 IEEE80211_VHT_MCS_SUPPORT_0_9 << 6 |
4498 IEEE80211_VHT_MCS_SUPPORT_0_9 << 8 |
4499 IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
4500 IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
4501 IEEE80211_VHT_MCS_SUPPORT_0_9 << 14);
4502 sband->vht_cap.vht_mcs.tx_mcs_map =
4503 sband->vht_cap.vht_mcs.rx_mcs_map;
4504 break;
4505 case NL80211_BAND_6GHZ:
4506 sband->channels = data->channels_6ghz;
4507 sband->n_channels = ARRAY_SIZE(hwsim_channels_6ghz);
4508 sband->bitrates = data->rates + 4;
4509 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
4510 break;
4511 case NL80211_BAND_S1GHZ:
4512 memcpy(&sband->s1g_cap, &hwsim_s1g_cap,
4513 sizeof(sband->s1g_cap));
4514 sband->channels = data->channels_s1g;
4515 sband->n_channels = ARRAY_SIZE(hwsim_channels_s1g);
4516 break;
4517 default:
4518 continue;
4519 }
4520
4521 if (band != NL80211_BAND_6GHZ){
4522 sband->ht_cap.ht_supported = true;
4523 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
4524 IEEE80211_HT_CAP_GRN_FLD |
4525 IEEE80211_HT_CAP_SGI_20 |
4526 IEEE80211_HT_CAP_SGI_40 |
4527 IEEE80211_HT_CAP_DSSSCCK40;
4528 sband->ht_cap.ampdu_factor = 0x3;
4529 sband->ht_cap.ampdu_density = 0x6;
4530 memset(&sband->ht_cap.mcs, 0,
4531 sizeof(sband->ht_cap.mcs));
4532 sband->ht_cap.mcs.rx_mask[0] = 0xff;
4533 sband->ht_cap.mcs.rx_mask[1] = 0xff;
4534 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
4535 }
4536
4537 mac80211_hwsim_sband_capab(sband);
4538
4539 hw->wiphy->bands[band] = sband;
4540 }
4541
4542 /* By default all radios belong to the first group */
4543 data->group = 1;
4544 mutex_init(&data->mutex);
4545
4546 data->netgroup = hwsim_net_get_netgroup(net);
4547 data->wmediumd = hwsim_net_get_wmediumd(net);
4548
4549 /* Enable frame retransmissions for lossy channels */
4550 hw->max_rates = 4;
4551 hw->max_rate_tries = 11;
4552
4553 hw->wiphy->vendor_commands = mac80211_hwsim_vendor_commands;
4554 hw->wiphy->n_vendor_commands =
4555 ARRAY_SIZE(mac80211_hwsim_vendor_commands);
4556 hw->wiphy->vendor_events = mac80211_hwsim_vendor_events;
4557 hw->wiphy->n_vendor_events = ARRAY_SIZE(mac80211_hwsim_vendor_events);
4558
4559 if (param->reg_strict)
4560 hw->wiphy->regulatory_flags |= REGULATORY_STRICT_REG;
4561 if (param->regd) {
4562 data->regd = param->regd;
4563 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
4564 wiphy_apply_custom_regulatory(hw->wiphy, param->regd);
4565 /* give the regulatory workqueue a chance to run */
4566 schedule_timeout_interruptible(1);
4567 }
4568
4569 if (param->no_vif)
4570 ieee80211_hw_set(hw, NO_AUTO_VIF);
4571
4572 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);
4573
4574 for (i = 0; i < ARRAY_SIZE(data->link_data); i++) {
4575 hrtimer_init(&data->link_data[i].beacon_timer, CLOCK_MONOTONIC,
4576 HRTIMER_MODE_ABS_SOFT);
4577 data->link_data[i].beacon_timer.function =
4578 mac80211_hwsim_beacon;
4579 data->link_data[i].link_id = i;
4580 }
4581
4582 err = ieee80211_register_hw(hw);
4583 if (err < 0) {
4584 pr_debug("mac80211_hwsim: ieee80211_register_hw failed (%d)\n",
4585 err);
4586 goto failed_hw;
4587 }
4588
4589 wiphy_dbg(hw->wiphy, "hwaddr %pM registered\n", hw->wiphy->perm_addr);
4590
4591 if (param->reg_alpha2) {
4592 data->alpha2[0] = param->reg_alpha2[0];
4593 data->alpha2[1] = param->reg_alpha2[1];
4594 regulatory_hint(hw->wiphy, param->reg_alpha2);
4595 }
4596
4597 data->debugfs = debugfs_create_dir("hwsim", hw->wiphy->debugfsdir);
4598 debugfs_create_file("ps", 0666, data->debugfs, data, &hwsim_fops_ps);
4599 debugfs_create_file("group", 0666, data->debugfs, data,
4600 &hwsim_fops_group);
4601 debugfs_create_file("rx_rssi", 0666, data->debugfs, data,
4602 &hwsim_fops_rx_rssi);
4603 if (!data->use_chanctx)
4604 debugfs_create_file("dfs_simulate_radar", 0222,
4605 data->debugfs,
4606 data, &hwsim_simulate_radar);
4607
4608 spin_lock_bh(&hwsim_radio_lock);
4609 err = rhashtable_insert_fast(&hwsim_radios_rht, &data->rht,
4610 hwsim_rht_params);
4611 if (err < 0) {
4612 if (info) {
4613 GENL_SET_ERR_MSG(info, "perm addr already present");
4614 NL_SET_BAD_ATTR(info->extack,
4615 info->attrs[HWSIM_ATTR_PERM_ADDR]);
4616 }
4617 spin_unlock_bh(&hwsim_radio_lock);
4618 goto failed_final_insert;
4619 }
4620
4621 list_add_tail(&data->list, &hwsim_radios);
4622 hwsim_radios_generation++;
4623 spin_unlock_bh(&hwsim_radio_lock);
4624
4625 hwsim_mcast_new_radio(idx, info, param);
4626
4627 return idx;
4628
4629 failed_final_insert:
4630 debugfs_remove_recursive(data->debugfs);
4631 ieee80211_unregister_hw(data->hw);
4632 failed_hw:
4633 device_release_driver(data->dev);
4634 failed_bind:
4635 device_unregister(data->dev);
4636 failed_drvdata:
4637 ieee80211_free_hw(hw);
4638 failed:
4639 return err;
4640 }
4641
hwsim_mcast_del_radio(int id,const char * hwname,struct genl_info * info)4642 static void hwsim_mcast_del_radio(int id, const char *hwname,
4643 struct genl_info *info)
4644 {
4645 struct sk_buff *skb;
4646 void *data;
4647 int ret;
4648
4649 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
4650 if (!skb)
4651 return;
4652
4653 data = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
4654 HWSIM_CMD_DEL_RADIO);
4655 if (!data)
4656 goto error;
4657
4658 ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
4659 if (ret < 0)
4660 goto error;
4661
4662 ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME, strlen(hwname),
4663 hwname);
4664 if (ret < 0)
4665 goto error;
4666
4667 genlmsg_end(skb, data);
4668
4669 hwsim_mcast_config_msg(skb, info);
4670
4671 return;
4672
4673 error:
4674 nlmsg_free(skb);
4675 }
4676
mac80211_hwsim_del_radio(struct mac80211_hwsim_data * data,const char * hwname,struct genl_info * info)4677 static void mac80211_hwsim_del_radio(struct mac80211_hwsim_data *data,
4678 const char *hwname,
4679 struct genl_info *info)
4680 {
4681 hwsim_mcast_del_radio(data->idx, hwname, info);
4682 debugfs_remove_recursive(data->debugfs);
4683 ieee80211_unregister_hw(data->hw);
4684 device_release_driver(data->dev);
4685 device_unregister(data->dev);
4686 ieee80211_free_hw(data->hw);
4687 }
4688
mac80211_hwsim_get_radio(struct sk_buff * skb,struct mac80211_hwsim_data * data,u32 portid,u32 seq,struct netlink_callback * cb,int flags)4689 static int mac80211_hwsim_get_radio(struct sk_buff *skb,
4690 struct mac80211_hwsim_data *data,
4691 u32 portid, u32 seq,
4692 struct netlink_callback *cb, int flags)
4693 {
4694 void *hdr;
4695 struct hwsim_new_radio_params param = { };
4696 int res = -EMSGSIZE;
4697
4698 hdr = genlmsg_put(skb, portid, seq, &hwsim_genl_family, flags,
4699 HWSIM_CMD_GET_RADIO);
4700 if (!hdr)
4701 return -EMSGSIZE;
4702
4703 if (cb)
4704 genl_dump_check_consistent(cb, hdr);
4705
4706 if (data->alpha2[0] && data->alpha2[1])
4707 param.reg_alpha2 = data->alpha2;
4708
4709 param.reg_strict = !!(data->hw->wiphy->regulatory_flags &
4710 REGULATORY_STRICT_REG);
4711 param.p2p_device = !!(data->hw->wiphy->interface_modes &
4712 BIT(NL80211_IFTYPE_P2P_DEVICE));
4713 param.use_chanctx = data->use_chanctx;
4714 param.regd = data->regd;
4715 param.channels = data->channels;
4716 param.hwname = wiphy_name(data->hw->wiphy);
4717
4718 res = append_radio_msg(skb, data->idx, ¶m);
4719 if (res < 0)
4720 goto out_err;
4721
4722 genlmsg_end(skb, hdr);
4723 return 0;
4724
4725 out_err:
4726 genlmsg_cancel(skb, hdr);
4727 return res;
4728 }
4729
mac80211_hwsim_free(void)4730 static void mac80211_hwsim_free(void)
4731 {
4732 struct mac80211_hwsim_data *data;
4733
4734 spin_lock_bh(&hwsim_radio_lock);
4735 while ((data = list_first_entry_or_null(&hwsim_radios,
4736 struct mac80211_hwsim_data,
4737 list))) {
4738 list_del(&data->list);
4739 spin_unlock_bh(&hwsim_radio_lock);
4740 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
4741 NULL);
4742 spin_lock_bh(&hwsim_radio_lock);
4743 }
4744 spin_unlock_bh(&hwsim_radio_lock);
4745 class_destroy(hwsim_class);
4746 }
4747
4748 static const struct net_device_ops hwsim_netdev_ops = {
4749 .ndo_start_xmit = hwsim_mon_xmit,
4750 .ndo_set_mac_address = eth_mac_addr,
4751 .ndo_validate_addr = eth_validate_addr,
4752 };
4753
hwsim_mon_setup(struct net_device * dev)4754 static void hwsim_mon_setup(struct net_device *dev)
4755 {
4756 u8 addr[ETH_ALEN];
4757
4758 dev->netdev_ops = &hwsim_netdev_ops;
4759 dev->needs_free_netdev = true;
4760 ether_setup(dev);
4761 dev->priv_flags |= IFF_NO_QUEUE;
4762 dev->type = ARPHRD_IEEE80211_RADIOTAP;
4763 eth_zero_addr(addr);
4764 addr[0] = 0x12;
4765 eth_hw_addr_set(dev, addr);
4766 }
4767
get_hwsim_data_ref_from_addr(const u8 * addr)4768 static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(const u8 *addr)
4769 {
4770 return rhashtable_lookup_fast(&hwsim_radios_rht,
4771 addr,
4772 hwsim_rht_params);
4773 }
4774
hwsim_register_wmediumd(struct net * net,u32 portid)4775 static void hwsim_register_wmediumd(struct net *net, u32 portid)
4776 {
4777 struct mac80211_hwsim_data *data;
4778
4779 hwsim_net_set_wmediumd(net, portid);
4780
4781 spin_lock_bh(&hwsim_radio_lock);
4782 list_for_each_entry(data, &hwsim_radios, list) {
4783 if (data->netgroup == hwsim_net_get_netgroup(net))
4784 data->wmediumd = portid;
4785 }
4786 spin_unlock_bh(&hwsim_radio_lock);
4787 }
4788
hwsim_tx_info_frame_received_nl(struct sk_buff * skb_2,struct genl_info * info)4789 static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
4790 struct genl_info *info)
4791 {
4792
4793 struct ieee80211_hdr *hdr;
4794 struct mac80211_hwsim_data *data2;
4795 struct ieee80211_tx_info *txi;
4796 struct hwsim_tx_rate *tx_attempts;
4797 u64 ret_skb_cookie;
4798 struct sk_buff *skb, *tmp;
4799 const u8 *src;
4800 unsigned int hwsim_flags;
4801 int i;
4802 unsigned long flags;
4803 bool found = false;
4804
4805 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
4806 !info->attrs[HWSIM_ATTR_FLAGS] ||
4807 !info->attrs[HWSIM_ATTR_COOKIE] ||
4808 !info->attrs[HWSIM_ATTR_SIGNAL] ||
4809 !info->attrs[HWSIM_ATTR_TX_INFO])
4810 goto out;
4811
4812 src = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
4813 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
4814 ret_skb_cookie = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
4815
4816 data2 = get_hwsim_data_ref_from_addr(src);
4817 if (!data2)
4818 goto out;
4819
4820 if (!hwsim_virtio_enabled) {
4821 if (hwsim_net_get_netgroup(genl_info_net(info)) !=
4822 data2->netgroup)
4823 goto out;
4824
4825 if (info->snd_portid != data2->wmediumd)
4826 goto out;
4827 }
4828
4829 /* look for the skb matching the cookie passed back from user */
4830 spin_lock_irqsave(&data2->pending.lock, flags);
4831 skb_queue_walk_safe(&data2->pending, skb, tmp) {
4832 uintptr_t skb_cookie;
4833
4834 txi = IEEE80211_SKB_CB(skb);
4835 skb_cookie = (uintptr_t)txi->rate_driver_data[0];
4836
4837 if (skb_cookie == ret_skb_cookie) {
4838 __skb_unlink(skb, &data2->pending);
4839 found = true;
4840 break;
4841 }
4842 }
4843 spin_unlock_irqrestore(&data2->pending.lock, flags);
4844
4845 /* not found */
4846 if (!found)
4847 goto out;
4848
4849 /* Tx info received because the frame was broadcasted on user space,
4850 so we get all the necessary info: tx attempts and skb control buff */
4851
4852 tx_attempts = (struct hwsim_tx_rate *)nla_data(
4853 info->attrs[HWSIM_ATTR_TX_INFO]);
4854
4855 /* now send back TX status */
4856 txi = IEEE80211_SKB_CB(skb);
4857
4858 ieee80211_tx_info_clear_status(txi);
4859
4860 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
4861 txi->status.rates[i].idx = tx_attempts[i].idx;
4862 txi->status.rates[i].count = tx_attempts[i].count;
4863 }
4864
4865 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
4866
4867 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
4868 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
4869 if (skb->len >= 16) {
4870 hdr = (struct ieee80211_hdr *) skb->data;
4871 mac80211_hwsim_monitor_ack(data2->channel,
4872 hdr->addr2);
4873 }
4874 txi->flags |= IEEE80211_TX_STAT_ACK;
4875 }
4876
4877 if (hwsim_flags & HWSIM_TX_CTL_NO_ACK)
4878 txi->flags |= IEEE80211_TX_STAT_NOACK_TRANSMITTED;
4879
4880 ieee80211_tx_status_irqsafe(data2->hw, skb);
4881 return 0;
4882 out:
4883 return -EINVAL;
4884
4885 }
4886
hwsim_cloned_frame_received_nl(struct sk_buff * skb_2,struct genl_info * info)4887 static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
4888 struct genl_info *info)
4889 {
4890 struct mac80211_hwsim_data *data2;
4891 struct ieee80211_rx_status rx_status;
4892 struct ieee80211_hdr *hdr;
4893 const u8 *dst;
4894 int frame_data_len;
4895 void *frame_data;
4896 struct sk_buff *skb = NULL;
4897 struct ieee80211_channel *channel = NULL;
4898
4899 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
4900 !info->attrs[HWSIM_ATTR_FRAME] ||
4901 !info->attrs[HWSIM_ATTR_RX_RATE] ||
4902 !info->attrs[HWSIM_ATTR_SIGNAL])
4903 goto out;
4904
4905 dst = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
4906 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
4907 frame_data = (void *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
4908
4909 /* Allocate new skb here */
4910 skb = alloc_skb(frame_data_len, GFP_KERNEL);
4911 if (skb == NULL)
4912 goto err;
4913
4914 if (frame_data_len > IEEE80211_MAX_DATA_LEN)
4915 goto err;
4916
4917 /* Copy the data */
4918 skb_put_data(skb, frame_data, frame_data_len);
4919
4920 data2 = get_hwsim_data_ref_from_addr(dst);
4921 if (!data2)
4922 goto out;
4923
4924 if (data2->use_chanctx) {
4925 if (data2->tmp_chan)
4926 channel = data2->tmp_chan;
4927 } else {
4928 channel = data2->channel;
4929 }
4930
4931 if (!hwsim_virtio_enabled) {
4932 if (hwsim_net_get_netgroup(genl_info_net(info)) !=
4933 data2->netgroup)
4934 goto out;
4935
4936 if (info->snd_portid != data2->wmediumd)
4937 goto out;
4938 }
4939
4940 /* check if radio is configured properly */
4941
4942 if ((data2->idle && !data2->tmp_chan) || !data2->started)
4943 goto out;
4944
4945 /* A frame is received from user space */
4946 memset(&rx_status, 0, sizeof(rx_status));
4947 if (info->attrs[HWSIM_ATTR_FREQ]) {
4948 struct tx_iter_data iter_data = {};
4949
4950 /* throw away off-channel packets, but allow both the temporary
4951 * ("hw" scan/remain-on-channel), regular channels and links,
4952 * since the internal datapath also allows this
4953 */
4954 rx_status.freq = nla_get_u32(info->attrs[HWSIM_ATTR_FREQ]);
4955
4956 iter_data.channel = ieee80211_get_channel(data2->hw->wiphy,
4957 rx_status.freq);
4958 if (!iter_data.channel)
4959 goto out;
4960 rx_status.band = iter_data.channel->band;
4961
4962 mutex_lock(&data2->mutex);
4963 if (!hwsim_chans_compat(iter_data.channel, channel)) {
4964 ieee80211_iterate_active_interfaces_atomic(
4965 data2->hw, IEEE80211_IFACE_ITER_NORMAL,
4966 mac80211_hwsim_tx_iter, &iter_data);
4967 if (!iter_data.receive) {
4968 mutex_unlock(&data2->mutex);
4969 goto out;
4970 }
4971 }
4972 mutex_unlock(&data2->mutex);
4973 } else if (!channel) {
4974 goto out;
4975 } else {
4976 rx_status.freq = channel->center_freq;
4977 rx_status.band = channel->band;
4978 }
4979
4980 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
4981 if (rx_status.rate_idx >= data2->hw->wiphy->bands[rx_status.band]->n_bitrates)
4982 goto out;
4983 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
4984
4985 hdr = (void *)skb->data;
4986
4987 if (ieee80211_is_beacon(hdr->frame_control) ||
4988 ieee80211_is_probe_resp(hdr->frame_control))
4989 rx_status.boottime_ns = ktime_get_boottime_ns();
4990
4991 mac80211_hwsim_rx(data2, &rx_status, skb);
4992
4993 return 0;
4994 err:
4995 pr_debug("mac80211_hwsim: error occurred in %s\n", __func__);
4996 out:
4997 dev_kfree_skb(skb);
4998 return -EINVAL;
4999 }
5000
hwsim_register_received_nl(struct sk_buff * skb_2,struct genl_info * info)5001 static int hwsim_register_received_nl(struct sk_buff *skb_2,
5002 struct genl_info *info)
5003 {
5004 struct net *net = genl_info_net(info);
5005 struct mac80211_hwsim_data *data;
5006 int chans = 1;
5007
5008 spin_lock_bh(&hwsim_radio_lock);
5009 list_for_each_entry(data, &hwsim_radios, list)
5010 chans = max(chans, data->channels);
5011 spin_unlock_bh(&hwsim_radio_lock);
5012
5013 /* In the future we should revise the userspace API and allow it
5014 * to set a flag that it does support multi-channel, then we can
5015 * let this pass conditionally on the flag.
5016 * For current userspace, prohibit it since it won't work right.
5017 */
5018 if (chans > 1)
5019 return -EOPNOTSUPP;
5020
5021 if (hwsim_net_get_wmediumd(net))
5022 return -EBUSY;
5023
5024 hwsim_register_wmediumd(net, info->snd_portid);
5025
5026 pr_debug("mac80211_hwsim: received a REGISTER, "
5027 "switching to wmediumd mode with pid %d\n", info->snd_portid);
5028
5029 return 0;
5030 }
5031
5032 /* ensures ciphers only include ciphers listed in 'hwsim_ciphers' array */
hwsim_known_ciphers(const u32 * ciphers,int n_ciphers)5033 static bool hwsim_known_ciphers(const u32 *ciphers, int n_ciphers)
5034 {
5035 int i;
5036
5037 for (i = 0; i < n_ciphers; i++) {
5038 int j;
5039 int found = 0;
5040
5041 for (j = 0; j < ARRAY_SIZE(hwsim_ciphers); j++) {
5042 if (ciphers[i] == hwsim_ciphers[j]) {
5043 found = 1;
5044 break;
5045 }
5046 }
5047
5048 if (!found)
5049 return false;
5050 }
5051
5052 return true;
5053 }
5054
hwsim_new_radio_nl(struct sk_buff * msg,struct genl_info * info)5055 static int hwsim_new_radio_nl(struct sk_buff *msg, struct genl_info *info)
5056 {
5057 struct hwsim_new_radio_params param = { 0 };
5058 const char *hwname = NULL;
5059 int ret;
5060
5061 param.reg_strict = info->attrs[HWSIM_ATTR_REG_STRICT_REG];
5062 param.p2p_device = info->attrs[HWSIM_ATTR_SUPPORT_P2P_DEVICE];
5063 param.channels = channels;
5064 param.destroy_on_close =
5065 info->attrs[HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE];
5066
5067 if (info->attrs[HWSIM_ATTR_CHANNELS])
5068 param.channels = nla_get_u32(info->attrs[HWSIM_ATTR_CHANNELS]);
5069
5070 if (param.channels < 1) {
5071 GENL_SET_ERR_MSG(info, "must have at least one channel");
5072 return -EINVAL;
5073 }
5074
5075 if (info->attrs[HWSIM_ATTR_NO_VIF])
5076 param.no_vif = true;
5077
5078 if (info->attrs[HWSIM_ATTR_USE_CHANCTX])
5079 param.use_chanctx = true;
5080 else
5081 param.use_chanctx = (param.channels > 1);
5082
5083 if (info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2])
5084 param.reg_alpha2 =
5085 nla_data(info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2]);
5086
5087 if (info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]) {
5088 u32 idx = nla_get_u32(info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]);
5089
5090 if (idx >= ARRAY_SIZE(hwsim_world_regdom_custom))
5091 return -EINVAL;
5092
5093 idx = array_index_nospec(idx,
5094 ARRAY_SIZE(hwsim_world_regdom_custom));
5095 param.regd = hwsim_world_regdom_custom[idx];
5096 }
5097
5098 if (info->attrs[HWSIM_ATTR_PERM_ADDR]) {
5099 if (!is_valid_ether_addr(
5100 nla_data(info->attrs[HWSIM_ATTR_PERM_ADDR]))) {
5101 GENL_SET_ERR_MSG(info,"MAC is no valid source addr");
5102 NL_SET_BAD_ATTR(info->extack,
5103 info->attrs[HWSIM_ATTR_PERM_ADDR]);
5104 return -EINVAL;
5105 }
5106
5107 param.perm_addr = nla_data(info->attrs[HWSIM_ATTR_PERM_ADDR]);
5108 }
5109
5110 if (info->attrs[HWSIM_ATTR_IFTYPE_SUPPORT]) {
5111 param.iftypes =
5112 nla_get_u32(info->attrs[HWSIM_ATTR_IFTYPE_SUPPORT]);
5113
5114 if (param.iftypes & ~HWSIM_IFTYPE_SUPPORT_MASK) {
5115 NL_SET_ERR_MSG_ATTR(info->extack,
5116 info->attrs[HWSIM_ATTR_IFTYPE_SUPPORT],
5117 "cannot support more iftypes than kernel");
5118 return -EINVAL;
5119 }
5120 } else {
5121 param.iftypes = HWSIM_IFTYPE_SUPPORT_MASK;
5122 }
5123
5124 /* ensure both flag and iftype support is honored */
5125 if (param.p2p_device ||
5126 param.iftypes & BIT(NL80211_IFTYPE_P2P_DEVICE)) {
5127 param.iftypes |= BIT(NL80211_IFTYPE_P2P_DEVICE);
5128 param.p2p_device = true;
5129 }
5130
5131 if (info->attrs[HWSIM_ATTR_CIPHER_SUPPORT]) {
5132 u32 len = nla_len(info->attrs[HWSIM_ATTR_CIPHER_SUPPORT]);
5133
5134 param.ciphers =
5135 nla_data(info->attrs[HWSIM_ATTR_CIPHER_SUPPORT]);
5136
5137 if (len % sizeof(u32)) {
5138 NL_SET_ERR_MSG_ATTR(info->extack,
5139 info->attrs[HWSIM_ATTR_CIPHER_SUPPORT],
5140 "bad cipher list length");
5141 return -EINVAL;
5142 }
5143
5144 param.n_ciphers = len / sizeof(u32);
5145
5146 if (param.n_ciphers > ARRAY_SIZE(hwsim_ciphers)) {
5147 NL_SET_ERR_MSG_ATTR(info->extack,
5148 info->attrs[HWSIM_ATTR_CIPHER_SUPPORT],
5149 "too many ciphers specified");
5150 return -EINVAL;
5151 }
5152
5153 if (!hwsim_known_ciphers(param.ciphers, param.n_ciphers)) {
5154 NL_SET_ERR_MSG_ATTR(info->extack,
5155 info->attrs[HWSIM_ATTR_CIPHER_SUPPORT],
5156 "unsupported ciphers specified");
5157 return -EINVAL;
5158 }
5159 }
5160
5161 param.mlo = info->attrs[HWSIM_ATTR_MLO_SUPPORT];
5162
5163 if (param.mlo)
5164 param.use_chanctx = true;
5165
5166 if (info->attrs[HWSIM_ATTR_RADIO_NAME]) {
5167 hwname = kstrndup((char *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]),
5168 nla_len(info->attrs[HWSIM_ATTR_RADIO_NAME]),
5169 GFP_KERNEL);
5170 if (!hwname)
5171 return -ENOMEM;
5172 param.hwname = hwname;
5173 }
5174
5175 ret = mac80211_hwsim_new_radio(info, ¶m);
5176 kfree(hwname);
5177 return ret;
5178 }
5179
hwsim_del_radio_nl(struct sk_buff * msg,struct genl_info * info)5180 static int hwsim_del_radio_nl(struct sk_buff *msg, struct genl_info *info)
5181 {
5182 struct mac80211_hwsim_data *data;
5183 s64 idx = -1;
5184 const char *hwname = NULL;
5185
5186 if (info->attrs[HWSIM_ATTR_RADIO_ID]) {
5187 idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
5188 } else if (info->attrs[HWSIM_ATTR_RADIO_NAME]) {
5189 hwname = kstrndup((char *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]),
5190 nla_len(info->attrs[HWSIM_ATTR_RADIO_NAME]),
5191 GFP_KERNEL);
5192 if (!hwname)
5193 return -ENOMEM;
5194 } else
5195 return -EINVAL;
5196
5197 spin_lock_bh(&hwsim_radio_lock);
5198 list_for_each_entry(data, &hwsim_radios, list) {
5199 if (idx >= 0) {
5200 if (data->idx != idx)
5201 continue;
5202 } else {
5203 if (!hwname ||
5204 strcmp(hwname, wiphy_name(data->hw->wiphy)))
5205 continue;
5206 }
5207
5208 if (!net_eq(wiphy_net(data->hw->wiphy), genl_info_net(info)))
5209 continue;
5210
5211 list_del(&data->list);
5212 rhashtable_remove_fast(&hwsim_radios_rht, &data->rht,
5213 hwsim_rht_params);
5214 hwsim_radios_generation++;
5215 spin_unlock_bh(&hwsim_radio_lock);
5216 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
5217 info);
5218 kfree(hwname);
5219 return 0;
5220 }
5221 spin_unlock_bh(&hwsim_radio_lock);
5222
5223 kfree(hwname);
5224 return -ENODEV;
5225 }
5226
hwsim_get_radio_nl(struct sk_buff * msg,struct genl_info * info)5227 static int hwsim_get_radio_nl(struct sk_buff *msg, struct genl_info *info)
5228 {
5229 struct mac80211_hwsim_data *data;
5230 struct sk_buff *skb;
5231 int idx, res = -ENODEV;
5232
5233 if (!info->attrs[HWSIM_ATTR_RADIO_ID])
5234 return -EINVAL;
5235 idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
5236
5237 spin_lock_bh(&hwsim_radio_lock);
5238 list_for_each_entry(data, &hwsim_radios, list) {
5239 if (data->idx != idx)
5240 continue;
5241
5242 if (!net_eq(wiphy_net(data->hw->wiphy), genl_info_net(info)))
5243 continue;
5244
5245 skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
5246 if (!skb) {
5247 res = -ENOMEM;
5248 goto out_err;
5249 }
5250
5251 res = mac80211_hwsim_get_radio(skb, data, info->snd_portid,
5252 info->snd_seq, NULL, 0);
5253 if (res < 0) {
5254 nlmsg_free(skb);
5255 goto out_err;
5256 }
5257
5258 res = genlmsg_reply(skb, info);
5259 break;
5260 }
5261
5262 out_err:
5263 spin_unlock_bh(&hwsim_radio_lock);
5264
5265 return res;
5266 }
5267
hwsim_dump_radio_nl(struct sk_buff * skb,struct netlink_callback * cb)5268 static int hwsim_dump_radio_nl(struct sk_buff *skb,
5269 struct netlink_callback *cb)
5270 {
5271 int last_idx = cb->args[0] - 1;
5272 struct mac80211_hwsim_data *data = NULL;
5273 int res = 0;
5274 void *hdr;
5275
5276 spin_lock_bh(&hwsim_radio_lock);
5277 cb->seq = hwsim_radios_generation;
5278
5279 if (last_idx >= hwsim_radio_idx-1)
5280 goto done;
5281
5282 list_for_each_entry(data, &hwsim_radios, list) {
5283 if (data->idx <= last_idx)
5284 continue;
5285
5286 if (!net_eq(wiphy_net(data->hw->wiphy), sock_net(skb->sk)))
5287 continue;
5288
5289 res = mac80211_hwsim_get_radio(skb, data,
5290 NETLINK_CB(cb->skb).portid,
5291 cb->nlh->nlmsg_seq, cb,
5292 NLM_F_MULTI);
5293 if (res < 0)
5294 break;
5295
5296 last_idx = data->idx;
5297 }
5298
5299 cb->args[0] = last_idx + 1;
5300
5301 /* list changed, but no new element sent, set interrupted flag */
5302 if (skb->len == 0 && cb->prev_seq && cb->seq != cb->prev_seq) {
5303 hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid,
5304 cb->nlh->nlmsg_seq, &hwsim_genl_family,
5305 NLM_F_MULTI, HWSIM_CMD_GET_RADIO);
5306 if (hdr) {
5307 genl_dump_check_consistent(cb, hdr);
5308 genlmsg_end(skb, hdr);
5309 } else {
5310 res = -EMSGSIZE;
5311 }
5312 }
5313
5314 done:
5315 spin_unlock_bh(&hwsim_radio_lock);
5316 return res ?: skb->len;
5317 }
5318
5319 /* Generic Netlink operations array */
5320 static const struct genl_small_ops hwsim_ops[] = {
5321 {
5322 .cmd = HWSIM_CMD_REGISTER,
5323 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
5324 .doit = hwsim_register_received_nl,
5325 .flags = GENL_UNS_ADMIN_PERM,
5326 },
5327 {
5328 .cmd = HWSIM_CMD_FRAME,
5329 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
5330 .doit = hwsim_cloned_frame_received_nl,
5331 },
5332 {
5333 .cmd = HWSIM_CMD_TX_INFO_FRAME,
5334 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
5335 .doit = hwsim_tx_info_frame_received_nl,
5336 },
5337 {
5338 .cmd = HWSIM_CMD_NEW_RADIO,
5339 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
5340 .doit = hwsim_new_radio_nl,
5341 .flags = GENL_UNS_ADMIN_PERM,
5342 },
5343 {
5344 .cmd = HWSIM_CMD_DEL_RADIO,
5345 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
5346 .doit = hwsim_del_radio_nl,
5347 .flags = GENL_UNS_ADMIN_PERM,
5348 },
5349 {
5350 .cmd = HWSIM_CMD_GET_RADIO,
5351 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
5352 .doit = hwsim_get_radio_nl,
5353 .dumpit = hwsim_dump_radio_nl,
5354 },
5355 };
5356
5357 static struct genl_family hwsim_genl_family __ro_after_init = {
5358 .name = "MAC80211_HWSIM",
5359 .version = 1,
5360 .maxattr = HWSIM_ATTR_MAX,
5361 .policy = hwsim_genl_policy,
5362 .netnsok = true,
5363 .module = THIS_MODULE,
5364 .small_ops = hwsim_ops,
5365 .n_small_ops = ARRAY_SIZE(hwsim_ops),
5366 .resv_start_op = HWSIM_CMD_DEL_MAC_ADDR + 1,
5367 .mcgrps = hwsim_mcgrps,
5368 .n_mcgrps = ARRAY_SIZE(hwsim_mcgrps),
5369 };
5370
remove_user_radios(u32 portid)5371 static void remove_user_radios(u32 portid)
5372 {
5373 struct mac80211_hwsim_data *entry, *tmp;
5374 LIST_HEAD(list);
5375
5376 spin_lock_bh(&hwsim_radio_lock);
5377 list_for_each_entry_safe(entry, tmp, &hwsim_radios, list) {
5378 if (entry->destroy_on_close && entry->portid == portid) {
5379 list_move(&entry->list, &list);
5380 rhashtable_remove_fast(&hwsim_radios_rht, &entry->rht,
5381 hwsim_rht_params);
5382 hwsim_radios_generation++;
5383 }
5384 }
5385 spin_unlock_bh(&hwsim_radio_lock);
5386
5387 list_for_each_entry_safe(entry, tmp, &list, list) {
5388 list_del(&entry->list);
5389 mac80211_hwsim_del_radio(entry, wiphy_name(entry->hw->wiphy),
5390 NULL);
5391 }
5392 }
5393
mac80211_hwsim_netlink_notify(struct notifier_block * nb,unsigned long state,void * _notify)5394 static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
5395 unsigned long state,
5396 void *_notify)
5397 {
5398 struct netlink_notify *notify = _notify;
5399
5400 if (state != NETLINK_URELEASE)
5401 return NOTIFY_DONE;
5402
5403 remove_user_radios(notify->portid);
5404
5405 if (notify->portid == hwsim_net_get_wmediumd(notify->net)) {
5406 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
5407 " socket, switching to perfect channel medium\n");
5408 hwsim_register_wmediumd(notify->net, 0);
5409 }
5410 return NOTIFY_DONE;
5411
5412 }
5413
5414 static struct notifier_block hwsim_netlink_notifier = {
5415 .notifier_call = mac80211_hwsim_netlink_notify,
5416 };
5417
hwsim_init_netlink(void)5418 static int __init hwsim_init_netlink(void)
5419 {
5420 int rc;
5421
5422 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
5423
5424 rc = genl_register_family(&hwsim_genl_family);
5425 if (rc)
5426 goto failure;
5427
5428 rc = netlink_register_notifier(&hwsim_netlink_notifier);
5429 if (rc) {
5430 genl_unregister_family(&hwsim_genl_family);
5431 goto failure;
5432 }
5433
5434 return 0;
5435
5436 failure:
5437 pr_debug("mac80211_hwsim: error occurred in %s\n", __func__);
5438 return -EINVAL;
5439 }
5440
hwsim_init_net(struct net * net)5441 static __net_init int hwsim_init_net(struct net *net)
5442 {
5443 return hwsim_net_set_netgroup(net);
5444 }
5445
hwsim_exit_net(struct net * net)5446 static void __net_exit hwsim_exit_net(struct net *net)
5447 {
5448 struct mac80211_hwsim_data *data, *tmp;
5449 LIST_HEAD(list);
5450
5451 spin_lock_bh(&hwsim_radio_lock);
5452 list_for_each_entry_safe(data, tmp, &hwsim_radios, list) {
5453 if (!net_eq(wiphy_net(data->hw->wiphy), net))
5454 continue;
5455
5456 /* Radios created in init_net are returned to init_net. */
5457 if (data->netgroup == hwsim_net_get_netgroup(&init_net))
5458 continue;
5459
5460 list_move(&data->list, &list);
5461 rhashtable_remove_fast(&hwsim_radios_rht, &data->rht,
5462 hwsim_rht_params);
5463 hwsim_radios_generation++;
5464 }
5465 spin_unlock_bh(&hwsim_radio_lock);
5466
5467 list_for_each_entry_safe(data, tmp, &list, list) {
5468 list_del(&data->list);
5469 mac80211_hwsim_del_radio(data,
5470 wiphy_name(data->hw->wiphy),
5471 NULL);
5472 }
5473
5474 ida_free(&hwsim_netgroup_ida, hwsim_net_get_netgroup(net));
5475 }
5476
5477 static struct pernet_operations hwsim_net_ops = {
5478 .init = hwsim_init_net,
5479 .exit = hwsim_exit_net,
5480 .id = &hwsim_net_id,
5481 .size = sizeof(struct hwsim_net),
5482 };
5483
hwsim_exit_netlink(void)5484 static void hwsim_exit_netlink(void)
5485 {
5486 /* unregister the notifier */
5487 netlink_unregister_notifier(&hwsim_netlink_notifier);
5488 /* unregister the family */
5489 genl_unregister_family(&hwsim_genl_family);
5490 }
5491
5492 #if IS_REACHABLE(CONFIG_VIRTIO)
hwsim_virtio_tx_done(struct virtqueue * vq)5493 static void hwsim_virtio_tx_done(struct virtqueue *vq)
5494 {
5495 unsigned int len;
5496 struct sk_buff *skb;
5497 unsigned long flags;
5498
5499 spin_lock_irqsave(&hwsim_virtio_lock, flags);
5500 while ((skb = virtqueue_get_buf(vq, &len)))
5501 nlmsg_free(skb);
5502 spin_unlock_irqrestore(&hwsim_virtio_lock, flags);
5503 }
5504
hwsim_virtio_handle_cmd(struct sk_buff * skb)5505 static int hwsim_virtio_handle_cmd(struct sk_buff *skb)
5506 {
5507 struct nlmsghdr *nlh;
5508 struct genlmsghdr *gnlh;
5509 struct nlattr *tb[HWSIM_ATTR_MAX + 1];
5510 struct genl_info info = {};
5511 int err;
5512
5513 nlh = nlmsg_hdr(skb);
5514 gnlh = nlmsg_data(nlh);
5515
5516 if (skb->len < nlh->nlmsg_len)
5517 return -EINVAL;
5518
5519 err = genlmsg_parse(nlh, &hwsim_genl_family, tb, HWSIM_ATTR_MAX,
5520 hwsim_genl_policy, NULL);
5521 if (err) {
5522 pr_err_ratelimited("hwsim: genlmsg_parse returned %d\n", err);
5523 return err;
5524 }
5525
5526 info.attrs = tb;
5527
5528 switch (gnlh->cmd) {
5529 case HWSIM_CMD_FRAME:
5530 hwsim_cloned_frame_received_nl(skb, &info);
5531 break;
5532 case HWSIM_CMD_TX_INFO_FRAME:
5533 hwsim_tx_info_frame_received_nl(skb, &info);
5534 break;
5535 default:
5536 pr_err_ratelimited("hwsim: invalid cmd: %d\n", gnlh->cmd);
5537 return -EPROTO;
5538 }
5539 return 0;
5540 }
5541
hwsim_virtio_rx_work(struct work_struct * work)5542 static void hwsim_virtio_rx_work(struct work_struct *work)
5543 {
5544 struct virtqueue *vq;
5545 unsigned int len;
5546 struct sk_buff *skb;
5547 struct scatterlist sg[1];
5548 int err;
5549 unsigned long flags;
5550
5551 spin_lock_irqsave(&hwsim_virtio_lock, flags);
5552 if (!hwsim_virtio_enabled)
5553 goto out_unlock;
5554
5555 skb = virtqueue_get_buf(hwsim_vqs[HWSIM_VQ_RX], &len);
5556 if (!skb)
5557 goto out_unlock;
5558 spin_unlock_irqrestore(&hwsim_virtio_lock, flags);
5559
5560 skb->data = skb->head;
5561 skb_reset_tail_pointer(skb);
5562 skb_put(skb, len);
5563 hwsim_virtio_handle_cmd(skb);
5564
5565 spin_lock_irqsave(&hwsim_virtio_lock, flags);
5566 if (!hwsim_virtio_enabled) {
5567 nlmsg_free(skb);
5568 goto out_unlock;
5569 }
5570 vq = hwsim_vqs[HWSIM_VQ_RX];
5571 sg_init_one(sg, skb->head, skb_end_offset(skb));
5572 err = virtqueue_add_inbuf(vq, sg, 1, skb, GFP_ATOMIC);
5573 if (WARN(err, "virtqueue_add_inbuf returned %d\n", err))
5574 nlmsg_free(skb);
5575 else
5576 virtqueue_kick(vq);
5577 schedule_work(&hwsim_virtio_rx);
5578
5579 out_unlock:
5580 spin_unlock_irqrestore(&hwsim_virtio_lock, flags);
5581 }
5582
hwsim_virtio_rx_done(struct virtqueue * vq)5583 static void hwsim_virtio_rx_done(struct virtqueue *vq)
5584 {
5585 schedule_work(&hwsim_virtio_rx);
5586 }
5587
init_vqs(struct virtio_device * vdev)5588 static int init_vqs(struct virtio_device *vdev)
5589 {
5590 vq_callback_t *callbacks[HWSIM_NUM_VQS] = {
5591 [HWSIM_VQ_TX] = hwsim_virtio_tx_done,
5592 [HWSIM_VQ_RX] = hwsim_virtio_rx_done,
5593 };
5594 const char *names[HWSIM_NUM_VQS] = {
5595 [HWSIM_VQ_TX] = "tx",
5596 [HWSIM_VQ_RX] = "rx",
5597 };
5598
5599 return virtio_find_vqs(vdev, HWSIM_NUM_VQS,
5600 hwsim_vqs, callbacks, names, NULL);
5601 }
5602
fill_vq(struct virtqueue * vq)5603 static int fill_vq(struct virtqueue *vq)
5604 {
5605 int i, err;
5606 struct sk_buff *skb;
5607 struct scatterlist sg[1];
5608
5609 for (i = 0; i < virtqueue_get_vring_size(vq); i++) {
5610 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
5611 if (!skb)
5612 return -ENOMEM;
5613
5614 sg_init_one(sg, skb->head, skb_end_offset(skb));
5615 err = virtqueue_add_inbuf(vq, sg, 1, skb, GFP_KERNEL);
5616 if (err) {
5617 nlmsg_free(skb);
5618 return err;
5619 }
5620 }
5621 virtqueue_kick(vq);
5622 return 0;
5623 }
5624
remove_vqs(struct virtio_device * vdev)5625 static void remove_vqs(struct virtio_device *vdev)
5626 {
5627 int i;
5628
5629 virtio_reset_device(vdev);
5630
5631 for (i = 0; i < ARRAY_SIZE(hwsim_vqs); i++) {
5632 struct virtqueue *vq = hwsim_vqs[i];
5633 struct sk_buff *skb;
5634
5635 while ((skb = virtqueue_detach_unused_buf(vq)))
5636 nlmsg_free(skb);
5637 }
5638
5639 vdev->config->del_vqs(vdev);
5640 }
5641
hwsim_virtio_probe(struct virtio_device * vdev)5642 static int hwsim_virtio_probe(struct virtio_device *vdev)
5643 {
5644 int err;
5645 unsigned long flags;
5646
5647 spin_lock_irqsave(&hwsim_virtio_lock, flags);
5648 if (hwsim_virtio_enabled) {
5649 spin_unlock_irqrestore(&hwsim_virtio_lock, flags);
5650 return -EEXIST;
5651 }
5652 spin_unlock_irqrestore(&hwsim_virtio_lock, flags);
5653
5654 err = init_vqs(vdev);
5655 if (err)
5656 return err;
5657
5658 virtio_device_ready(vdev);
5659
5660 err = fill_vq(hwsim_vqs[HWSIM_VQ_RX]);
5661 if (err)
5662 goto out_remove;
5663
5664 spin_lock_irqsave(&hwsim_virtio_lock, flags);
5665 hwsim_virtio_enabled = true;
5666 spin_unlock_irqrestore(&hwsim_virtio_lock, flags);
5667
5668 schedule_work(&hwsim_virtio_rx);
5669 return 0;
5670
5671 out_remove:
5672 remove_vqs(vdev);
5673 return err;
5674 }
5675
hwsim_virtio_remove(struct virtio_device * vdev)5676 static void hwsim_virtio_remove(struct virtio_device *vdev)
5677 {
5678 hwsim_virtio_enabled = false;
5679
5680 cancel_work_sync(&hwsim_virtio_rx);
5681
5682 remove_vqs(vdev);
5683 }
5684
5685 /* MAC80211_HWSIM virtio device id table */
5686 static const struct virtio_device_id id_table[] = {
5687 { VIRTIO_ID_MAC80211_HWSIM, VIRTIO_DEV_ANY_ID },
5688 { 0 }
5689 };
5690 MODULE_DEVICE_TABLE(virtio, id_table);
5691
5692 static struct virtio_driver virtio_hwsim = {
5693 .driver.name = KBUILD_MODNAME,
5694 .driver.owner = THIS_MODULE,
5695 .id_table = id_table,
5696 .probe = hwsim_virtio_probe,
5697 .remove = hwsim_virtio_remove,
5698 };
5699
hwsim_register_virtio_driver(void)5700 static int hwsim_register_virtio_driver(void)
5701 {
5702 return register_virtio_driver(&virtio_hwsim);
5703 }
5704
hwsim_unregister_virtio_driver(void)5705 static void hwsim_unregister_virtio_driver(void)
5706 {
5707 unregister_virtio_driver(&virtio_hwsim);
5708 }
5709 #else
hwsim_register_virtio_driver(void)5710 static inline int hwsim_register_virtio_driver(void)
5711 {
5712 return 0;
5713 }
5714
hwsim_unregister_virtio_driver(void)5715 static inline void hwsim_unregister_virtio_driver(void)
5716 {
5717 }
5718 #endif
5719
init_mac80211_hwsim(void)5720 static int __init init_mac80211_hwsim(void)
5721 {
5722 int i, err;
5723
5724 if (radios < 0 || radios > 100)
5725 return -EINVAL;
5726
5727 if (channels < 1)
5728 return -EINVAL;
5729
5730 err = rhashtable_init(&hwsim_radios_rht, &hwsim_rht_params);
5731 if (err)
5732 return err;
5733
5734 err = register_pernet_device(&hwsim_net_ops);
5735 if (err)
5736 goto out_free_rht;
5737
5738 err = platform_driver_register(&mac80211_hwsim_driver);
5739 if (err)
5740 goto out_unregister_pernet;
5741
5742 err = hwsim_init_netlink();
5743 if (err)
5744 goto out_unregister_driver;
5745
5746 err = hwsim_register_virtio_driver();
5747 if (err)
5748 goto out_exit_netlink;
5749
5750 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
5751 if (IS_ERR(hwsim_class)) {
5752 err = PTR_ERR(hwsim_class);
5753 goto out_exit_virtio;
5754 }
5755
5756 hwsim_init_s1g_channels(hwsim_channels_s1g);
5757
5758 for (i = 0; i < radios; i++) {
5759 struct hwsim_new_radio_params param = { 0 };
5760
5761 param.channels = channels;
5762
5763 switch (regtest) {
5764 case HWSIM_REGTEST_DIFF_COUNTRY:
5765 if (i < ARRAY_SIZE(hwsim_alpha2s))
5766 param.reg_alpha2 = hwsim_alpha2s[i];
5767 break;
5768 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
5769 if (!i)
5770 param.reg_alpha2 = hwsim_alpha2s[0];
5771 break;
5772 case HWSIM_REGTEST_STRICT_ALL:
5773 param.reg_strict = true;
5774 fallthrough;
5775 case HWSIM_REGTEST_DRIVER_REG_ALL:
5776 param.reg_alpha2 = hwsim_alpha2s[0];
5777 break;
5778 case HWSIM_REGTEST_WORLD_ROAM:
5779 if (i == 0)
5780 param.regd = &hwsim_world_regdom_custom_01;
5781 break;
5782 case HWSIM_REGTEST_CUSTOM_WORLD:
5783 param.regd = &hwsim_world_regdom_custom_01;
5784 break;
5785 case HWSIM_REGTEST_CUSTOM_WORLD_2:
5786 if (i == 0)
5787 param.regd = &hwsim_world_regdom_custom_01;
5788 else if (i == 1)
5789 param.regd = &hwsim_world_regdom_custom_02;
5790 break;
5791 case HWSIM_REGTEST_STRICT_FOLLOW:
5792 if (i == 0) {
5793 param.reg_strict = true;
5794 param.reg_alpha2 = hwsim_alpha2s[0];
5795 }
5796 break;
5797 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
5798 if (i == 0) {
5799 param.reg_strict = true;
5800 param.reg_alpha2 = hwsim_alpha2s[0];
5801 } else if (i == 1) {
5802 param.reg_alpha2 = hwsim_alpha2s[1];
5803 }
5804 break;
5805 case HWSIM_REGTEST_ALL:
5806 switch (i) {
5807 case 0:
5808 param.regd = &hwsim_world_regdom_custom_01;
5809 break;
5810 case 1:
5811 param.regd = &hwsim_world_regdom_custom_02;
5812 break;
5813 case 2:
5814 param.reg_alpha2 = hwsim_alpha2s[0];
5815 break;
5816 case 3:
5817 param.reg_alpha2 = hwsim_alpha2s[1];
5818 break;
5819 case 4:
5820 param.reg_strict = true;
5821 param.reg_alpha2 = hwsim_alpha2s[2];
5822 break;
5823 }
5824 break;
5825 default:
5826 break;
5827 }
5828
5829 param.p2p_device = support_p2p_device;
5830 param.mlo = mlo;
5831 param.use_chanctx = channels > 1 || mlo;
5832 param.iftypes = HWSIM_IFTYPE_SUPPORT_MASK;
5833 if (param.p2p_device)
5834 param.iftypes |= BIT(NL80211_IFTYPE_P2P_DEVICE);
5835
5836 err = mac80211_hwsim_new_radio(NULL, ¶m);
5837 if (err < 0)
5838 goto out_free_radios;
5839 }
5840
5841 hwsim_mon = alloc_netdev(0, "hwsim%d", NET_NAME_UNKNOWN,
5842 hwsim_mon_setup);
5843 if (hwsim_mon == NULL) {
5844 err = -ENOMEM;
5845 goto out_free_radios;
5846 }
5847
5848 rtnl_lock();
5849 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
5850 if (err < 0) {
5851 rtnl_unlock();
5852 goto out_free_mon;
5853 }
5854
5855 err = register_netdevice(hwsim_mon);
5856 if (err < 0) {
5857 rtnl_unlock();
5858 goto out_free_mon;
5859 }
5860 rtnl_unlock();
5861
5862 return 0;
5863
5864 out_free_mon:
5865 free_netdev(hwsim_mon);
5866 out_free_radios:
5867 mac80211_hwsim_free();
5868 out_exit_virtio:
5869 hwsim_unregister_virtio_driver();
5870 out_exit_netlink:
5871 hwsim_exit_netlink();
5872 out_unregister_driver:
5873 platform_driver_unregister(&mac80211_hwsim_driver);
5874 out_unregister_pernet:
5875 unregister_pernet_device(&hwsim_net_ops);
5876 out_free_rht:
5877 rhashtable_destroy(&hwsim_radios_rht);
5878 return err;
5879 }
5880 module_init(init_mac80211_hwsim);
5881
exit_mac80211_hwsim(void)5882 static void __exit exit_mac80211_hwsim(void)
5883 {
5884 pr_debug("mac80211_hwsim: unregister radios\n");
5885
5886 hwsim_unregister_virtio_driver();
5887 hwsim_exit_netlink();
5888
5889 mac80211_hwsim_free();
5890
5891 rhashtable_destroy(&hwsim_radios_rht);
5892 unregister_netdev(hwsim_mon);
5893 platform_driver_unregister(&mac80211_hwsim_driver);
5894 unregister_pernet_device(&hwsim_net_ops);
5895 }
5896 module_exit(exit_mac80211_hwsim);
5897
