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 - 2023 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 	/* only used when pmsr capability is supplied */
723 	struct cfg80211_pmsr_capabilities pmsr_capa;
724 	struct cfg80211_pmsr_request *pmsr_request;
725 	struct wireless_dev *pmsr_request_wdev;
726 
727 	struct mac80211_hwsim_link_data link_data[IEEE80211_MLD_MAX_NUM_LINKS];
728 };
729 
730 static const struct rhashtable_params hwsim_rht_params = {
731 	.nelem_hint = 2,
732 	.automatic_shrinking = true,
733 	.key_len = ETH_ALEN,
734 	.key_offset = offsetof(struct mac80211_hwsim_data, addresses[1]),
735 	.head_offset = offsetof(struct mac80211_hwsim_data, rht),
736 };
737 
738 struct hwsim_radiotap_hdr {
739 	struct ieee80211_radiotap_header hdr;
740 	__le64 rt_tsft;
741 	u8 rt_flags;
742 	u8 rt_rate;
743 	__le16 rt_channel;
744 	__le16 rt_chbitmask;
745 } __packed;
746 
747 struct hwsim_radiotap_ack_hdr {
748 	struct ieee80211_radiotap_header hdr;
749 	u8 rt_flags;
750 	u8 pad;
751 	__le16 rt_channel;
752 	__le16 rt_chbitmask;
753 } __packed;
754 
get_hwsim_data_ref_from_addr(const u8 * addr)755 static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(const u8 *addr)
756 {
757 	return rhashtable_lookup_fast(&hwsim_radios_rht, addr, hwsim_rht_params);
758 }
759 
760 /* MAC80211_HWSIM netlink family */
761 static struct genl_family hwsim_genl_family;
762 
763 enum hwsim_multicast_groups {
764 	HWSIM_MCGRP_CONFIG,
765 };
766 
767 static const struct genl_multicast_group hwsim_mcgrps[] = {
768 	[HWSIM_MCGRP_CONFIG] = { .name = "config", },
769 };
770 
771 /* MAC80211_HWSIM netlink policy */
772 
773 static const struct nla_policy
774 hwsim_rate_info_policy[HWSIM_RATE_INFO_ATTR_MAX + 1] = {
775 	[HWSIM_RATE_INFO_ATTR_FLAGS] = { .type = NLA_U8 },
776 	[HWSIM_RATE_INFO_ATTR_MCS] = { .type = NLA_U8 },
777 	[HWSIM_RATE_INFO_ATTR_LEGACY] = { .type = NLA_U16 },
778 	[HWSIM_RATE_INFO_ATTR_NSS] = { .type = NLA_U8 },
779 	[HWSIM_RATE_INFO_ATTR_BW] = { .type = NLA_U8 },
780 	[HWSIM_RATE_INFO_ATTR_HE_GI] = { .type = NLA_U8 },
781 	[HWSIM_RATE_INFO_ATTR_HE_DCM] = { .type = NLA_U8 },
782 	[HWSIM_RATE_INFO_ATTR_HE_RU_ALLOC] = { .type = NLA_U8 },
783 	[HWSIM_RATE_INFO_ATTR_N_BOUNDED_CH] = { .type = NLA_U8 },
784 	[HWSIM_RATE_INFO_ATTR_EHT_GI] = { .type = NLA_U8 },
785 	[HWSIM_RATE_INFO_ATTR_EHT_RU_ALLOC] = { .type = NLA_U8 },
786 };
787 
788 static const struct nla_policy
789 hwsim_ftm_result_policy[NL80211_PMSR_FTM_RESP_ATTR_MAX + 1] = {
790 	[NL80211_PMSR_FTM_RESP_ATTR_FAIL_REASON] = { .type = NLA_U32 },
791 	[NL80211_PMSR_FTM_RESP_ATTR_BURST_INDEX] = { .type = NLA_U16 },
792 	[NL80211_PMSR_FTM_RESP_ATTR_NUM_FTMR_ATTEMPTS] = { .type = NLA_U32 },
793 	[NL80211_PMSR_FTM_RESP_ATTR_NUM_FTMR_SUCCESSES] = { .type = NLA_U32 },
794 	[NL80211_PMSR_FTM_RESP_ATTR_BUSY_RETRY_TIME] = { .type = NLA_U8 },
795 	[NL80211_PMSR_FTM_RESP_ATTR_NUM_BURSTS_EXP] = { .type = NLA_U8 },
796 	[NL80211_PMSR_FTM_RESP_ATTR_BURST_DURATION] = { .type = NLA_U8 },
797 	[NL80211_PMSR_FTM_RESP_ATTR_FTMS_PER_BURST] = { .type = NLA_U8 },
798 	[NL80211_PMSR_FTM_RESP_ATTR_RSSI_AVG] = { .type = NLA_U32 },
799 	[NL80211_PMSR_FTM_RESP_ATTR_RSSI_SPREAD] = { .type = NLA_U32 },
800 	[NL80211_PMSR_FTM_RESP_ATTR_TX_RATE] = NLA_POLICY_NESTED(hwsim_rate_info_policy),
801 	[NL80211_PMSR_FTM_RESP_ATTR_RX_RATE] = NLA_POLICY_NESTED(hwsim_rate_info_policy),
802 	[NL80211_PMSR_FTM_RESP_ATTR_RTT_AVG] = { .type = NLA_U64 },
803 	[NL80211_PMSR_FTM_RESP_ATTR_RTT_VARIANCE] = { .type = NLA_U64 },
804 	[NL80211_PMSR_FTM_RESP_ATTR_RTT_SPREAD] = { .type = NLA_U64 },
805 	[NL80211_PMSR_FTM_RESP_ATTR_DIST_AVG] = { .type = NLA_U64 },
806 	[NL80211_PMSR_FTM_RESP_ATTR_DIST_VARIANCE] = { .type = NLA_U64 },
807 	[NL80211_PMSR_FTM_RESP_ATTR_DIST_SPREAD] = { .type = NLA_U64 },
808 	[NL80211_PMSR_FTM_RESP_ATTR_LCI] = { .type = NLA_STRING },
809 	[NL80211_PMSR_FTM_RESP_ATTR_CIVICLOC] = { .type = NLA_STRING },
810 };
811 
812 static const struct nla_policy
813 hwsim_pmsr_resp_type_policy[NL80211_PMSR_TYPE_MAX + 1] = {
814 	[NL80211_PMSR_TYPE_FTM] = NLA_POLICY_NESTED(hwsim_ftm_result_policy),
815 };
816 
817 static const struct nla_policy
818 hwsim_pmsr_resp_policy[NL80211_PMSR_RESP_ATTR_MAX + 1] = {
819 	[NL80211_PMSR_RESP_ATTR_STATUS] = { .type = NLA_U32 },
820 	[NL80211_PMSR_RESP_ATTR_HOST_TIME] = { .type = NLA_U64 },
821 	[NL80211_PMSR_RESP_ATTR_AP_TSF] = { .type = NLA_U64 },
822 	[NL80211_PMSR_RESP_ATTR_FINAL] = { .type = NLA_FLAG },
823 	[NL80211_PMSR_RESP_ATTR_DATA] = NLA_POLICY_NESTED(hwsim_pmsr_resp_type_policy),
824 };
825 
826 static const struct nla_policy
827 hwsim_pmsr_peer_result_policy[NL80211_PMSR_PEER_ATTR_MAX + 1] = {
828 	[NL80211_PMSR_PEER_ATTR_ADDR] = NLA_POLICY_ETH_ADDR_COMPAT,
829 	[NL80211_PMSR_PEER_ATTR_CHAN] = { .type = NLA_REJECT },
830 	[NL80211_PMSR_PEER_ATTR_REQ] = { .type = NLA_REJECT },
831 	[NL80211_PMSR_PEER_ATTR_RESP] = NLA_POLICY_NESTED(hwsim_pmsr_resp_policy),
832 };
833 
834 static const struct nla_policy
835 hwsim_pmsr_peers_result_policy[NL80211_PMSR_ATTR_MAX + 1] = {
836 	[NL80211_PMSR_ATTR_MAX_PEERS] = { .type = NLA_REJECT },
837 	[NL80211_PMSR_ATTR_REPORT_AP_TSF] = { .type = NLA_REJECT },
838 	[NL80211_PMSR_ATTR_RANDOMIZE_MAC_ADDR] = { .type = NLA_REJECT },
839 	[NL80211_PMSR_ATTR_TYPE_CAPA] = { .type = NLA_REJECT },
840 	[NL80211_PMSR_ATTR_PEERS] = NLA_POLICY_NESTED_ARRAY(hwsim_pmsr_peer_result_policy),
841 };
842 
843 static const struct nla_policy
844 hwsim_ftm_capa_policy[NL80211_PMSR_FTM_CAPA_ATTR_MAX + 1] = {
845 	[NL80211_PMSR_FTM_CAPA_ATTR_ASAP] = { .type = NLA_FLAG },
846 	[NL80211_PMSR_FTM_CAPA_ATTR_NON_ASAP] = { .type = NLA_FLAG },
847 	[NL80211_PMSR_FTM_CAPA_ATTR_REQ_LCI] = { .type = NLA_FLAG },
848 	[NL80211_PMSR_FTM_CAPA_ATTR_REQ_CIVICLOC] = { .type = NLA_FLAG },
849 	[NL80211_PMSR_FTM_CAPA_ATTR_PREAMBLES] = { .type = NLA_U32 },
850 	[NL80211_PMSR_FTM_CAPA_ATTR_BANDWIDTHS] = { .type = NLA_U32 },
851 	[NL80211_PMSR_FTM_CAPA_ATTR_MAX_BURSTS_EXPONENT] = NLA_POLICY_MAX(NLA_U8, 15),
852 	[NL80211_PMSR_FTM_CAPA_ATTR_MAX_FTMS_PER_BURST] = NLA_POLICY_MAX(NLA_U8, 31),
853 	[NL80211_PMSR_FTM_CAPA_ATTR_TRIGGER_BASED] = { .type = NLA_FLAG },
854 	[NL80211_PMSR_FTM_CAPA_ATTR_NON_TRIGGER_BASED] = { .type = NLA_FLAG },
855 };
856 
857 static const struct nla_policy
858 hwsim_pmsr_capa_type_policy[NL80211_PMSR_TYPE_MAX + 1] = {
859 	[NL80211_PMSR_TYPE_FTM] = NLA_POLICY_NESTED(hwsim_ftm_capa_policy),
860 };
861 
862 static const struct nla_policy
863 hwsim_pmsr_capa_policy[NL80211_PMSR_ATTR_MAX + 1] = {
864 	[NL80211_PMSR_ATTR_MAX_PEERS] = { .type = NLA_U32 },
865 	[NL80211_PMSR_ATTR_REPORT_AP_TSF] = { .type = NLA_FLAG },
866 	[NL80211_PMSR_ATTR_RANDOMIZE_MAC_ADDR] = { .type = NLA_FLAG },
867 	[NL80211_PMSR_ATTR_TYPE_CAPA] = NLA_POLICY_NESTED(hwsim_pmsr_capa_type_policy),
868 	[NL80211_PMSR_ATTR_PEERS] = { .type = NLA_REJECT }, // only for request.
869 };
870 
871 static const struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
872 	[HWSIM_ATTR_ADDR_RECEIVER] = NLA_POLICY_ETH_ADDR_COMPAT,
873 	[HWSIM_ATTR_ADDR_TRANSMITTER] = NLA_POLICY_ETH_ADDR_COMPAT,
874 	[HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
875 			       .len = IEEE80211_MAX_DATA_LEN },
876 	[HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
877 	[HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
878 	[HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
879 	[HWSIM_ATTR_TX_INFO] = { .type = NLA_BINARY,
880 				 .len = IEEE80211_TX_MAX_RATES *
881 					sizeof(struct hwsim_tx_rate)},
882 	[HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
883 	[HWSIM_ATTR_CHANNELS] = { .type = NLA_U32 },
884 	[HWSIM_ATTR_RADIO_ID] = { .type = NLA_U32 },
885 	[HWSIM_ATTR_REG_HINT_ALPHA2] = { .type = NLA_STRING, .len = 2 },
886 	[HWSIM_ATTR_REG_CUSTOM_REG] = { .type = NLA_U32 },
887 	[HWSIM_ATTR_REG_STRICT_REG] = { .type = NLA_FLAG },
888 	[HWSIM_ATTR_SUPPORT_P2P_DEVICE] = { .type = NLA_FLAG },
889 	[HWSIM_ATTR_USE_CHANCTX] = { .type = NLA_FLAG },
890 	[HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE] = { .type = NLA_FLAG },
891 	[HWSIM_ATTR_RADIO_NAME] = { .type = NLA_STRING },
892 	[HWSIM_ATTR_NO_VIF] = { .type = NLA_FLAG },
893 	[HWSIM_ATTR_FREQ] = { .type = NLA_U32 },
894 	[HWSIM_ATTR_TX_INFO_FLAGS] = { .type = NLA_BINARY },
895 	[HWSIM_ATTR_PERM_ADDR] = NLA_POLICY_ETH_ADDR_COMPAT,
896 	[HWSIM_ATTR_IFTYPE_SUPPORT] = { .type = NLA_U32 },
897 	[HWSIM_ATTR_CIPHER_SUPPORT] = { .type = NLA_BINARY },
898 	[HWSIM_ATTR_MLO_SUPPORT] = { .type = NLA_FLAG },
899 	[HWSIM_ATTR_PMSR_SUPPORT] = NLA_POLICY_NESTED(hwsim_pmsr_capa_policy),
900 	[HWSIM_ATTR_PMSR_RESULT] = NLA_POLICY_NESTED(hwsim_pmsr_peers_result_policy),
901 };
902 
903 #if IS_REACHABLE(CONFIG_VIRTIO)
904 
905 /* MAC80211_HWSIM virtio queues */
906 static struct virtqueue *hwsim_vqs[HWSIM_NUM_VQS];
907 static bool hwsim_virtio_enabled;
908 static DEFINE_SPINLOCK(hwsim_virtio_lock);
909 
910 static void hwsim_virtio_rx_work(struct work_struct *work);
911 static DECLARE_WORK(hwsim_virtio_rx, hwsim_virtio_rx_work);
912 
hwsim_tx_virtio(struct mac80211_hwsim_data * data,struct sk_buff * skb)913 static int hwsim_tx_virtio(struct mac80211_hwsim_data *data,
914 			   struct sk_buff *skb)
915 {
916 	struct scatterlist sg[1];
917 	unsigned long flags;
918 	int err;
919 
920 	spin_lock_irqsave(&hwsim_virtio_lock, flags);
921 	if (!hwsim_virtio_enabled) {
922 		err = -ENODEV;
923 		goto out_free;
924 	}
925 
926 	sg_init_one(sg, skb->head, skb_end_offset(skb));
927 	err = virtqueue_add_outbuf(hwsim_vqs[HWSIM_VQ_TX], sg, 1, skb,
928 				   GFP_ATOMIC);
929 	if (err)
930 		goto out_free;
931 	virtqueue_kick(hwsim_vqs[HWSIM_VQ_TX]);
932 	spin_unlock_irqrestore(&hwsim_virtio_lock, flags);
933 	return 0;
934 
935 out_free:
936 	spin_unlock_irqrestore(&hwsim_virtio_lock, flags);
937 	nlmsg_free(skb);
938 	return err;
939 }
940 #else
941 /* cause a linker error if this ends up being needed */
942 extern int hwsim_tx_virtio(struct mac80211_hwsim_data *data,
943 			   struct sk_buff *skb);
944 #define hwsim_virtio_enabled false
945 #endif
946 
hwsim_get_chanwidth(enum nl80211_chan_width bw)947 static int hwsim_get_chanwidth(enum nl80211_chan_width bw)
948 {
949 	switch (bw) {
950 	case NL80211_CHAN_WIDTH_20_NOHT:
951 	case NL80211_CHAN_WIDTH_20:
952 		return 20;
953 	case NL80211_CHAN_WIDTH_40:
954 		return 40;
955 	case NL80211_CHAN_WIDTH_80:
956 		return 80;
957 	case NL80211_CHAN_WIDTH_80P80:
958 	case NL80211_CHAN_WIDTH_160:
959 		return 160;
960 	case NL80211_CHAN_WIDTH_320:
961 		return 320;
962 	case NL80211_CHAN_WIDTH_5:
963 		return 5;
964 	case NL80211_CHAN_WIDTH_10:
965 		return 10;
966 	case NL80211_CHAN_WIDTH_1:
967 		return 1;
968 	case NL80211_CHAN_WIDTH_2:
969 		return 2;
970 	case NL80211_CHAN_WIDTH_4:
971 		return 4;
972 	case NL80211_CHAN_WIDTH_8:
973 		return 8;
974 	case NL80211_CHAN_WIDTH_16:
975 		return 16;
976 	}
977 
978 	return INT_MAX;
979 }
980 
981 static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
982 				    struct sk_buff *skb,
983 				    struct ieee80211_channel *chan);
984 
985 /* sysfs attributes */
hwsim_send_ps_poll(void * dat,u8 * mac,struct ieee80211_vif * vif)986 static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
987 {
988 	struct mac80211_hwsim_data *data = dat;
989 	struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
990 	struct sk_buff *skb;
991 	struct ieee80211_pspoll *pspoll;
992 
993 	if (!vp->assoc)
994 		return;
995 
996 	wiphy_dbg(data->hw->wiphy,
997 		  "%s: send PS-Poll to %pM for aid %d\n",
998 		  __func__, vp->bssid, vp->aid);
999 
1000 	skb = dev_alloc_skb(sizeof(*pspoll));
1001 	if (!skb)
1002 		return;
1003 	pspoll = skb_put(skb, sizeof(*pspoll));
1004 	pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
1005 					    IEEE80211_STYPE_PSPOLL |
1006 					    IEEE80211_FCTL_PM);
1007 	pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
1008 	memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
1009 	memcpy(pspoll->ta, mac, ETH_ALEN);
1010 
1011 	rcu_read_lock();
1012 	mac80211_hwsim_tx_frame(data->hw, skb,
1013 				rcu_dereference(vif->bss_conf.chanctx_conf)->def.chan);
1014 	rcu_read_unlock();
1015 }
1016 
hwsim_send_nullfunc(struct mac80211_hwsim_data * data,u8 * mac,struct ieee80211_vif * vif,int ps)1017 static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
1018 				struct ieee80211_vif *vif, int ps)
1019 {
1020 	struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1021 	struct sk_buff *skb;
1022 	struct ieee80211_hdr *hdr;
1023 	struct ieee80211_tx_info *cb;
1024 
1025 	if (!vp->assoc)
1026 		return;
1027 
1028 	wiphy_dbg(data->hw->wiphy,
1029 		  "%s: send data::nullfunc to %pM ps=%d\n",
1030 		  __func__, vp->bssid, ps);
1031 
1032 	skb = dev_alloc_skb(sizeof(*hdr));
1033 	if (!skb)
1034 		return;
1035 	hdr = skb_put(skb, sizeof(*hdr) - ETH_ALEN);
1036 	hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1037 					 IEEE80211_STYPE_NULLFUNC |
1038 					 IEEE80211_FCTL_TODS |
1039 					 (ps ? IEEE80211_FCTL_PM : 0));
1040 	hdr->duration_id = cpu_to_le16(0);
1041 	memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
1042 	memcpy(hdr->addr2, mac, ETH_ALEN);
1043 	memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
1044 
1045 	cb = IEEE80211_SKB_CB(skb);
1046 	cb->control.rates[0].count = 1;
1047 	cb->control.rates[1].idx = -1;
1048 
1049 	rcu_read_lock();
1050 	mac80211_hwsim_tx_frame(data->hw, skb,
1051 				rcu_dereference(vif->bss_conf.chanctx_conf)->def.chan);
1052 	rcu_read_unlock();
1053 }
1054 
1055 
hwsim_send_nullfunc_ps(void * dat,u8 * mac,struct ieee80211_vif * vif)1056 static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
1057 				   struct ieee80211_vif *vif)
1058 {
1059 	struct mac80211_hwsim_data *data = dat;
1060 	hwsim_send_nullfunc(data, mac, vif, 1);
1061 }
1062 
hwsim_send_nullfunc_no_ps(void * dat,u8 * mac,struct ieee80211_vif * vif)1063 static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
1064 				      struct ieee80211_vif *vif)
1065 {
1066 	struct mac80211_hwsim_data *data = dat;
1067 	hwsim_send_nullfunc(data, mac, vif, 0);
1068 }
1069 
hwsim_fops_ps_read(void * dat,u64 * val)1070 static int hwsim_fops_ps_read(void *dat, u64 *val)
1071 {
1072 	struct mac80211_hwsim_data *data = dat;
1073 	*val = data->ps;
1074 	return 0;
1075 }
1076 
hwsim_fops_ps_write(void * dat,u64 val)1077 static int hwsim_fops_ps_write(void *dat, u64 val)
1078 {
1079 	struct mac80211_hwsim_data *data = dat;
1080 	enum ps_mode old_ps;
1081 
1082 	if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
1083 	    val != PS_MANUAL_POLL)
1084 		return -EINVAL;
1085 
1086 	if (val == PS_MANUAL_POLL) {
1087 		if (data->ps != PS_ENABLED)
1088 			return -EINVAL;
1089 		local_bh_disable();
1090 		ieee80211_iterate_active_interfaces_atomic(
1091 			data->hw, IEEE80211_IFACE_ITER_NORMAL,
1092 			hwsim_send_ps_poll, data);
1093 		local_bh_enable();
1094 		return 0;
1095 	}
1096 	old_ps = data->ps;
1097 	data->ps = val;
1098 
1099 	local_bh_disable();
1100 	if (old_ps == PS_DISABLED && val != PS_DISABLED) {
1101 		ieee80211_iterate_active_interfaces_atomic(
1102 			data->hw, IEEE80211_IFACE_ITER_NORMAL,
1103 			hwsim_send_nullfunc_ps, data);
1104 	} else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
1105 		ieee80211_iterate_active_interfaces_atomic(
1106 			data->hw, IEEE80211_IFACE_ITER_NORMAL,
1107 			hwsim_send_nullfunc_no_ps, data);
1108 	}
1109 	local_bh_enable();
1110 
1111 	return 0;
1112 }
1113 
1114 DEFINE_DEBUGFS_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
1115 			 "%llu\n");
1116 
hwsim_write_simulate_radar(void * dat,u64 val)1117 static int hwsim_write_simulate_radar(void *dat, u64 val)
1118 {
1119 	struct mac80211_hwsim_data *data = dat;
1120 
1121 	ieee80211_radar_detected(data->hw);
1122 
1123 	return 0;
1124 }
1125 
1126 DEFINE_DEBUGFS_ATTRIBUTE(hwsim_simulate_radar, NULL,
1127 			 hwsim_write_simulate_radar, "%llu\n");
1128 
hwsim_fops_group_read(void * dat,u64 * val)1129 static int hwsim_fops_group_read(void *dat, u64 *val)
1130 {
1131 	struct mac80211_hwsim_data *data = dat;
1132 	*val = data->group;
1133 	return 0;
1134 }
1135 
hwsim_fops_group_write(void * dat,u64 val)1136 static int hwsim_fops_group_write(void *dat, u64 val)
1137 {
1138 	struct mac80211_hwsim_data *data = dat;
1139 	data->group = val;
1140 	return 0;
1141 }
1142 
1143 DEFINE_DEBUGFS_ATTRIBUTE(hwsim_fops_group,
1144 			 hwsim_fops_group_read, hwsim_fops_group_write,
1145 			 "%llx\n");
1146 
hwsim_fops_rx_rssi_read(void * dat,u64 * val)1147 static int hwsim_fops_rx_rssi_read(void *dat, u64 *val)
1148 {
1149 	struct mac80211_hwsim_data *data = dat;
1150 	*val = data->rx_rssi;
1151 	return 0;
1152 }
1153 
hwsim_fops_rx_rssi_write(void * dat,u64 val)1154 static int hwsim_fops_rx_rssi_write(void *dat, u64 val)
1155 {
1156 	struct mac80211_hwsim_data *data = dat;
1157 	int rssi = (int)val;
1158 
1159 	if (rssi >= 0 || rssi < -100)
1160 		return -EINVAL;
1161 
1162 	data->rx_rssi = rssi;
1163 	return 0;
1164 }
1165 
1166 DEFINE_DEBUGFS_ATTRIBUTE(hwsim_fops_rx_rssi,
1167 			 hwsim_fops_rx_rssi_read, hwsim_fops_rx_rssi_write,
1168 			 "%lld\n");
1169 
hwsim_mon_xmit(struct sk_buff * skb,struct net_device * dev)1170 static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
1171 					struct net_device *dev)
1172 {
1173 	/* TODO: allow packet injection */
1174 	dev_kfree_skb(skb);
1175 	return NETDEV_TX_OK;
1176 }
1177 
mac80211_hwsim_get_tsf_raw(void)1178 static inline u64 mac80211_hwsim_get_tsf_raw(void)
1179 {
1180 	return ktime_to_us(ktime_get_real());
1181 }
1182 
__mac80211_hwsim_get_tsf(struct mac80211_hwsim_data * data)1183 static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
1184 {
1185 	u64 now = mac80211_hwsim_get_tsf_raw();
1186 	return cpu_to_le64(now + data->tsf_offset);
1187 }
1188 
mac80211_hwsim_get_tsf(struct ieee80211_hw * hw,struct ieee80211_vif * vif)1189 static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
1190 				  struct ieee80211_vif *vif)
1191 {
1192 	struct mac80211_hwsim_data *data = hw->priv;
1193 	return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
1194 }
1195 
mac80211_hwsim_set_tsf(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u64 tsf)1196 static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
1197 		struct ieee80211_vif *vif, u64 tsf)
1198 {
1199 	struct mac80211_hwsim_data *data = hw->priv;
1200 	u64 now = mac80211_hwsim_get_tsf(hw, vif);
1201 	/* MLD not supported here */
1202 	u32 bcn_int = data->link_data[0].beacon_int;
1203 	u64 delta = abs(tsf - now);
1204 
1205 	/* adjust after beaconing with new timestamp at old TBTT */
1206 	if (tsf > now) {
1207 		data->tsf_offset += delta;
1208 		data->bcn_delta = do_div(delta, bcn_int);
1209 	} else {
1210 		data->tsf_offset -= delta;
1211 		data->bcn_delta = -(s64)do_div(delta, bcn_int);
1212 	}
1213 }
1214 
mac80211_hwsim_monitor_rx(struct ieee80211_hw * hw,struct sk_buff * tx_skb,struct ieee80211_channel * chan)1215 static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
1216 				      struct sk_buff *tx_skb,
1217 				      struct ieee80211_channel *chan)
1218 {
1219 	struct mac80211_hwsim_data *data = hw->priv;
1220 	struct sk_buff *skb;
1221 	struct hwsim_radiotap_hdr *hdr;
1222 	u16 flags, bitrate;
1223 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
1224 	struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
1225 
1226 	if (!txrate)
1227 		bitrate = 0;
1228 	else
1229 		bitrate = txrate->bitrate;
1230 
1231 	if (!netif_running(hwsim_mon))
1232 		return;
1233 
1234 	skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
1235 	if (skb == NULL)
1236 		return;
1237 
1238 	hdr = skb_push(skb, sizeof(*hdr));
1239 	hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
1240 	hdr->hdr.it_pad = 0;
1241 	hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
1242 	hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
1243 					  (1 << IEEE80211_RADIOTAP_RATE) |
1244 					  (1 << IEEE80211_RADIOTAP_TSFT) |
1245 					  (1 << IEEE80211_RADIOTAP_CHANNEL));
1246 	hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
1247 	hdr->rt_flags = 0;
1248 	hdr->rt_rate = bitrate / 5;
1249 	hdr->rt_channel = cpu_to_le16(chan->center_freq);
1250 	flags = IEEE80211_CHAN_2GHZ;
1251 	if (txrate && txrate->flags & IEEE80211_RATE_ERP_G)
1252 		flags |= IEEE80211_CHAN_OFDM;
1253 	else
1254 		flags |= IEEE80211_CHAN_CCK;
1255 	hdr->rt_chbitmask = cpu_to_le16(flags);
1256 
1257 	skb->dev = hwsim_mon;
1258 	skb_reset_mac_header(skb);
1259 	skb->ip_summed = CHECKSUM_UNNECESSARY;
1260 	skb->pkt_type = PACKET_OTHERHOST;
1261 	skb->protocol = htons(ETH_P_802_2);
1262 	memset(skb->cb, 0, sizeof(skb->cb));
1263 	netif_rx(skb);
1264 }
1265 
1266 
mac80211_hwsim_monitor_ack(struct ieee80211_channel * chan,const u8 * addr)1267 static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
1268 				       const u8 *addr)
1269 {
1270 	struct sk_buff *skb;
1271 	struct hwsim_radiotap_ack_hdr *hdr;
1272 	u16 flags;
1273 	struct ieee80211_hdr *hdr11;
1274 
1275 	if (!netif_running(hwsim_mon))
1276 		return;
1277 
1278 	skb = dev_alloc_skb(100);
1279 	if (skb == NULL)
1280 		return;
1281 
1282 	hdr = skb_put(skb, sizeof(*hdr));
1283 	hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
1284 	hdr->hdr.it_pad = 0;
1285 	hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
1286 	hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
1287 					  (1 << IEEE80211_RADIOTAP_CHANNEL));
1288 	hdr->rt_flags = 0;
1289 	hdr->pad = 0;
1290 	hdr->rt_channel = cpu_to_le16(chan->center_freq);
1291 	flags = IEEE80211_CHAN_2GHZ;
1292 	hdr->rt_chbitmask = cpu_to_le16(flags);
1293 
1294 	hdr11 = skb_put(skb, 10);
1295 	hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
1296 					   IEEE80211_STYPE_ACK);
1297 	hdr11->duration_id = cpu_to_le16(0);
1298 	memcpy(hdr11->addr1, addr, ETH_ALEN);
1299 
1300 	skb->dev = hwsim_mon;
1301 	skb_reset_mac_header(skb);
1302 	skb->ip_summed = CHECKSUM_UNNECESSARY;
1303 	skb->pkt_type = PACKET_OTHERHOST;
1304 	skb->protocol = htons(ETH_P_802_2);
1305 	memset(skb->cb, 0, sizeof(skb->cb));
1306 	netif_rx(skb);
1307 }
1308 
1309 struct mac80211_hwsim_addr_match_data {
1310 	u8 addr[ETH_ALEN];
1311 	bool ret;
1312 };
1313 
mac80211_hwsim_addr_iter(void * data,u8 * mac,struct ieee80211_vif * vif)1314 static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
1315 				     struct ieee80211_vif *vif)
1316 {
1317 	int i;
1318 	struct mac80211_hwsim_addr_match_data *md = data;
1319 
1320 	if (memcmp(mac, md->addr, ETH_ALEN) == 0) {
1321 		md->ret = true;
1322 		return;
1323 	}
1324 
1325 	/* Match the link address */
1326 	for (i = 0; i < ARRAY_SIZE(vif->link_conf); i++) {
1327 		struct ieee80211_bss_conf *conf;
1328 
1329 		conf = rcu_dereference(vif->link_conf[i]);
1330 		if (!conf)
1331 			continue;
1332 
1333 		if (memcmp(conf->addr, md->addr, ETH_ALEN) == 0) {
1334 			md->ret = true;
1335 			return;
1336 		}
1337 	}
1338 }
1339 
mac80211_hwsim_addr_match(struct mac80211_hwsim_data * data,const u8 * addr)1340 static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
1341 				      const u8 *addr)
1342 {
1343 	struct mac80211_hwsim_addr_match_data md = {
1344 		.ret = false,
1345 	};
1346 
1347 	if (data->scanning && memcmp(addr, data->scan_addr, ETH_ALEN) == 0)
1348 		return true;
1349 
1350 	memcpy(md.addr, addr, ETH_ALEN);
1351 
1352 	ieee80211_iterate_active_interfaces_atomic(data->hw,
1353 						   IEEE80211_IFACE_ITER_NORMAL,
1354 						   mac80211_hwsim_addr_iter,
1355 						   &md);
1356 
1357 	return md.ret;
1358 }
1359 
hwsim_ps_rx_ok(struct mac80211_hwsim_data * data,struct sk_buff * skb)1360 static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
1361 			   struct sk_buff *skb)
1362 {
1363 	switch (data->ps) {
1364 	case PS_DISABLED:
1365 		return true;
1366 	case PS_ENABLED:
1367 		return false;
1368 	case PS_AUTO_POLL:
1369 		/* TODO: accept (some) Beacons by default and other frames only
1370 		 * if pending PS-Poll has been sent */
1371 		return true;
1372 	case PS_MANUAL_POLL:
1373 		/* Allow unicast frames to own address if there is a pending
1374 		 * PS-Poll */
1375 		if (data->ps_poll_pending &&
1376 		    mac80211_hwsim_addr_match(data, skb->data + 4)) {
1377 			data->ps_poll_pending = false;
1378 			return true;
1379 		}
1380 		return false;
1381 	}
1382 
1383 	return true;
1384 }
1385 
hwsim_unicast_netgroup(struct mac80211_hwsim_data * data,struct sk_buff * skb,int portid)1386 static int hwsim_unicast_netgroup(struct mac80211_hwsim_data *data,
1387 				  struct sk_buff *skb, int portid)
1388 {
1389 	struct net *net;
1390 	bool found = false;
1391 	int res = -ENOENT;
1392 
1393 	rcu_read_lock();
1394 	for_each_net_rcu(net) {
1395 		if (data->netgroup == hwsim_net_get_netgroup(net)) {
1396 			res = genlmsg_unicast(net, skb, portid);
1397 			found = true;
1398 			break;
1399 		}
1400 	}
1401 	rcu_read_unlock();
1402 
1403 	if (!found)
1404 		nlmsg_free(skb);
1405 
1406 	return res;
1407 }
1408 
mac80211_hwsim_config_mac_nl(struct ieee80211_hw * hw,const u8 * addr,bool add)1409 static void mac80211_hwsim_config_mac_nl(struct ieee80211_hw *hw,
1410 					 const u8 *addr, bool add)
1411 {
1412 	struct mac80211_hwsim_data *data = hw->priv;
1413 	u32 _portid = READ_ONCE(data->wmediumd);
1414 	struct sk_buff *skb;
1415 	void *msg_head;
1416 
1417 	WARN_ON(!is_valid_ether_addr(addr));
1418 
1419 	if (!_portid && !hwsim_virtio_enabled)
1420 		return;
1421 
1422 	skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
1423 	if (!skb)
1424 		return;
1425 
1426 	msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
1427 			       add ? HWSIM_CMD_ADD_MAC_ADDR :
1428 				     HWSIM_CMD_DEL_MAC_ADDR);
1429 	if (!msg_head) {
1430 		pr_debug("mac80211_hwsim: problem with msg_head\n");
1431 		goto nla_put_failure;
1432 	}
1433 
1434 	if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
1435 		    ETH_ALEN, data->addresses[1].addr))
1436 		goto nla_put_failure;
1437 
1438 	if (nla_put(skb, HWSIM_ATTR_ADDR_RECEIVER, ETH_ALEN, addr))
1439 		goto nla_put_failure;
1440 
1441 	genlmsg_end(skb, msg_head);
1442 
1443 	if (hwsim_virtio_enabled)
1444 		hwsim_tx_virtio(data, skb);
1445 	else
1446 		hwsim_unicast_netgroup(data, skb, _portid);
1447 	return;
1448 nla_put_failure:
1449 	nlmsg_free(skb);
1450 }
1451 
trans_tx_rate_flags_ieee2hwsim(struct ieee80211_tx_rate * rate)1452 static inline u16 trans_tx_rate_flags_ieee2hwsim(struct ieee80211_tx_rate *rate)
1453 {
1454 	u16 result = 0;
1455 
1456 	if (rate->flags & IEEE80211_TX_RC_USE_RTS_CTS)
1457 		result |= MAC80211_HWSIM_TX_RC_USE_RTS_CTS;
1458 	if (rate->flags & IEEE80211_TX_RC_USE_CTS_PROTECT)
1459 		result |= MAC80211_HWSIM_TX_RC_USE_CTS_PROTECT;
1460 	if (rate->flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
1461 		result |= MAC80211_HWSIM_TX_RC_USE_SHORT_PREAMBLE;
1462 	if (rate->flags & IEEE80211_TX_RC_MCS)
1463 		result |= MAC80211_HWSIM_TX_RC_MCS;
1464 	if (rate->flags & IEEE80211_TX_RC_GREEN_FIELD)
1465 		result |= MAC80211_HWSIM_TX_RC_GREEN_FIELD;
1466 	if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
1467 		result |= MAC80211_HWSIM_TX_RC_40_MHZ_WIDTH;
1468 	if (rate->flags & IEEE80211_TX_RC_DUP_DATA)
1469 		result |= MAC80211_HWSIM_TX_RC_DUP_DATA;
1470 	if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
1471 		result |= MAC80211_HWSIM_TX_RC_SHORT_GI;
1472 	if (rate->flags & IEEE80211_TX_RC_VHT_MCS)
1473 		result |= MAC80211_HWSIM_TX_RC_VHT_MCS;
1474 	if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
1475 		result |= MAC80211_HWSIM_TX_RC_80_MHZ_WIDTH;
1476 	if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
1477 		result |= MAC80211_HWSIM_TX_RC_160_MHZ_WIDTH;
1478 
1479 	return result;
1480 }
1481 
mac80211_hwsim_tx_frame_nl(struct ieee80211_hw * hw,struct sk_buff * my_skb,int dst_portid,struct ieee80211_channel * channel)1482 static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
1483 				       struct sk_buff *my_skb,
1484 				       int dst_portid,
1485 				       struct ieee80211_channel *channel)
1486 {
1487 	struct sk_buff *skb;
1488 	struct mac80211_hwsim_data *data = hw->priv;
1489 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
1490 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
1491 	void *msg_head;
1492 	unsigned int hwsim_flags = 0;
1493 	int i;
1494 	struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
1495 	struct hwsim_tx_rate_flag tx_attempts_flags[IEEE80211_TX_MAX_RATES];
1496 	uintptr_t cookie;
1497 
1498 	if (data->ps != PS_DISABLED)
1499 		hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1500 	/* If the queue contains MAX_QUEUE skb's drop some */
1501 	if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
1502 		/* Dropping until WARN_QUEUE level */
1503 		while (skb_queue_len(&data->pending) >= WARN_QUEUE) {
1504 			ieee80211_free_txskb(hw, skb_dequeue(&data->pending));
1505 			data->tx_dropped++;
1506 		}
1507 	}
1508 
1509 	skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
1510 	if (skb == NULL)
1511 		goto nla_put_failure;
1512 
1513 	msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
1514 			       HWSIM_CMD_FRAME);
1515 	if (msg_head == NULL) {
1516 		pr_debug("mac80211_hwsim: problem with msg_head\n");
1517 		goto nla_put_failure;
1518 	}
1519 
1520 	if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
1521 		    ETH_ALEN, data->addresses[1].addr))
1522 		goto nla_put_failure;
1523 
1524 	/* We get the skb->data */
1525 	if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
1526 		goto nla_put_failure;
1527 
1528 	/* We get the flags for this transmission, and we translate them to
1529 	   wmediumd flags  */
1530 
1531 	if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
1532 		hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
1533 
1534 	if (info->flags & IEEE80211_TX_CTL_NO_ACK)
1535 		hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
1536 
1537 	if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
1538 		goto nla_put_failure;
1539 
1540 	if (nla_put_u32(skb, HWSIM_ATTR_FREQ, channel->center_freq))
1541 		goto nla_put_failure;
1542 
1543 	/* We get the tx control (rate and retries) info*/
1544 
1545 	for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
1546 		tx_attempts[i].idx = info->status.rates[i].idx;
1547 		tx_attempts_flags[i].idx = info->status.rates[i].idx;
1548 		tx_attempts[i].count = info->status.rates[i].count;
1549 		tx_attempts_flags[i].flags =
1550 				trans_tx_rate_flags_ieee2hwsim(
1551 						&info->status.rates[i]);
1552 	}
1553 
1554 	if (nla_put(skb, HWSIM_ATTR_TX_INFO,
1555 		    sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
1556 		    tx_attempts))
1557 		goto nla_put_failure;
1558 
1559 	if (nla_put(skb, HWSIM_ATTR_TX_INFO_FLAGS,
1560 		    sizeof(struct hwsim_tx_rate_flag) * IEEE80211_TX_MAX_RATES,
1561 		    tx_attempts_flags))
1562 		goto nla_put_failure;
1563 
1564 	/* We create a cookie to identify this skb */
1565 	cookie = atomic_inc_return(&data->pending_cookie);
1566 	info->rate_driver_data[0] = (void *)cookie;
1567 	if (nla_put_u64_64bit(skb, HWSIM_ATTR_COOKIE, cookie, HWSIM_ATTR_PAD))
1568 		goto nla_put_failure;
1569 
1570 	genlmsg_end(skb, msg_head);
1571 
1572 	if (hwsim_virtio_enabled) {
1573 		if (hwsim_tx_virtio(data, skb))
1574 			goto err_free_txskb;
1575 	} else {
1576 		if (hwsim_unicast_netgroup(data, skb, dst_portid))
1577 			goto err_free_txskb;
1578 	}
1579 
1580 	/* Enqueue the packet */
1581 	skb_queue_tail(&data->pending, my_skb);
1582 	data->tx_pkts++;
1583 	data->tx_bytes += my_skb->len;
1584 	return;
1585 
1586 nla_put_failure:
1587 	nlmsg_free(skb);
1588 err_free_txskb:
1589 	pr_debug("mac80211_hwsim: error occurred in %s\n", __func__);
1590 	ieee80211_free_txskb(hw, my_skb);
1591 	data->tx_failed++;
1592 }
1593 
hwsim_chans_compat(struct ieee80211_channel * c1,struct ieee80211_channel * c2)1594 static bool hwsim_chans_compat(struct ieee80211_channel *c1,
1595 			       struct ieee80211_channel *c2)
1596 {
1597 	if (!c1 || !c2)
1598 		return false;
1599 
1600 	return c1->center_freq == c2->center_freq;
1601 }
1602 
1603 struct tx_iter_data {
1604 	struct ieee80211_channel *channel;
1605 	bool receive;
1606 };
1607 
mac80211_hwsim_tx_iter(void * _data,u8 * addr,struct ieee80211_vif * vif)1608 static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
1609 				   struct ieee80211_vif *vif)
1610 {
1611 	struct tx_iter_data *data = _data;
1612 	int i;
1613 
1614 	for (i = 0; i < ARRAY_SIZE(vif->link_conf); i++) {
1615 		struct ieee80211_bss_conf *conf;
1616 		struct ieee80211_chanctx_conf *chanctx;
1617 
1618 		conf = rcu_dereference(vif->link_conf[i]);
1619 		if (!conf)
1620 			continue;
1621 
1622 		chanctx = rcu_dereference(conf->chanctx_conf);
1623 		if (!chanctx)
1624 			continue;
1625 
1626 		if (!hwsim_chans_compat(data->channel, chanctx->def.chan))
1627 			continue;
1628 
1629 		data->receive = true;
1630 		return;
1631 	}
1632 }
1633 
mac80211_hwsim_add_vendor_rtap(struct sk_buff * skb)1634 static void mac80211_hwsim_add_vendor_rtap(struct sk_buff *skb)
1635 {
1636 	/*
1637 	 * To enable this code, #define the HWSIM_RADIOTAP_OUI,
1638 	 * e.g. like this:
1639 	 * #define HWSIM_RADIOTAP_OUI "\x02\x00\x00"
1640 	 * (but you should use a valid OUI, not that)
1641 	 *
1642 	 * If anyone wants to 'donate' a radiotap OUI/subns code
1643 	 * please send a patch removing this #ifdef and changing
1644 	 * the values accordingly.
1645 	 */
1646 #ifdef HWSIM_RADIOTAP_OUI
1647 	struct ieee80211_radiotap_vendor_tlv *rtap;
1648 	static const char vendor_data[8] = "ABCDEFGH";
1649 
1650 	// Make sure no padding is needed
1651 	BUILD_BUG_ON(sizeof(vendor_data) % 4);
1652 	/* this is last radiotap info before the mac header, so
1653 	 * skb_reset_mac_header for mac8022 to know the end of
1654 	 * the radiotap TLV/beginning of the 802.11 header
1655 	 */
1656 	skb_reset_mac_header(skb);
1657 
1658 	/*
1659 	 * Note that this code requires the headroom in the SKB
1660 	 * that was allocated earlier.
1661 	 */
1662 	rtap = skb_push(skb, sizeof(*rtap) + sizeof(vendor_data));
1663 
1664 	rtap->len = cpu_to_le16(sizeof(*rtap) -
1665 				sizeof(struct ieee80211_radiotap_tlv) +
1666 				sizeof(vendor_data));
1667 	rtap->type = cpu_to_le16(IEEE80211_RADIOTAP_VENDOR_NAMESPACE);
1668 
1669 	rtap->content.oui[0] = HWSIM_RADIOTAP_OUI[0];
1670 	rtap->content.oui[1] = HWSIM_RADIOTAP_OUI[1];
1671 	rtap->content.oui[2] = HWSIM_RADIOTAP_OUI[2];
1672 	rtap->content.oui_subtype = 127;
1673 	/* clear reserved field */
1674 	rtap->content.reserved = 0;
1675 	rtap->content.vendor_type = 0;
1676 	memcpy(rtap->content.data, vendor_data, sizeof(vendor_data));
1677 
1678 	IEEE80211_SKB_RXCB(skb)->flag |= RX_FLAG_RADIOTAP_TLV_AT_END;
1679 #endif
1680 }
1681 
mac80211_hwsim_rx(struct mac80211_hwsim_data * data,struct ieee80211_rx_status * rx_status,struct sk_buff * skb)1682 static void mac80211_hwsim_rx(struct mac80211_hwsim_data *data,
1683 			      struct ieee80211_rx_status *rx_status,
1684 			      struct sk_buff *skb)
1685 {
1686 	struct ieee80211_hdr *hdr = (void *)skb->data;
1687 
1688 	if (!ieee80211_has_morefrags(hdr->frame_control) &&
1689 	    !is_multicast_ether_addr(hdr->addr1) &&
1690 	    (ieee80211_is_mgmt(hdr->frame_control) ||
1691 	     ieee80211_is_data(hdr->frame_control))) {
1692 		struct ieee80211_sta *sta;
1693 		unsigned int link_id;
1694 
1695 		rcu_read_lock();
1696 		sta = ieee80211_find_sta_by_link_addrs(data->hw, hdr->addr2,
1697 						       hdr->addr1, &link_id);
1698 		if (sta) {
1699 			struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
1700 
1701 			if (ieee80211_has_pm(hdr->frame_control))
1702 				sp->active_links_rx &= ~BIT(link_id);
1703 			else
1704 				sp->active_links_rx |= BIT(link_id);
1705 		}
1706 		rcu_read_unlock();
1707 	}
1708 
1709 	memcpy(IEEE80211_SKB_RXCB(skb), rx_status, sizeof(*rx_status));
1710 
1711 	mac80211_hwsim_add_vendor_rtap(skb);
1712 
1713 	data->rx_pkts++;
1714 	data->rx_bytes += skb->len;
1715 	ieee80211_rx_irqsafe(data->hw, skb);
1716 }
1717 
mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw * hw,struct sk_buff * skb,struct ieee80211_channel * chan)1718 static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
1719 					  struct sk_buff *skb,
1720 					  struct ieee80211_channel *chan)
1721 {
1722 	struct mac80211_hwsim_data *data = hw->priv, *data2;
1723 	bool ack = false;
1724 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
1725 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1726 	struct ieee80211_rx_status rx_status;
1727 	u64 now;
1728 
1729 	memset(&rx_status, 0, sizeof(rx_status));
1730 	rx_status.flag |= RX_FLAG_MACTIME_START;
1731 	rx_status.freq = chan->center_freq;
1732 	rx_status.freq_offset = chan->freq_offset ? 1 : 0;
1733 	rx_status.band = chan->band;
1734 	if (info->control.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) {
1735 		rx_status.rate_idx =
1736 			ieee80211_rate_get_vht_mcs(&info->control.rates[0]);
1737 		rx_status.nss =
1738 			ieee80211_rate_get_vht_nss(&info->control.rates[0]);
1739 		rx_status.encoding = RX_ENC_VHT;
1740 	} else {
1741 		rx_status.rate_idx = info->control.rates[0].idx;
1742 		if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
1743 			rx_status.encoding = RX_ENC_HT;
1744 	}
1745 	if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
1746 		rx_status.bw = RATE_INFO_BW_40;
1747 	else if (info->control.rates[0].flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
1748 		rx_status.bw = RATE_INFO_BW_80;
1749 	else if (info->control.rates[0].flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
1750 		rx_status.bw = RATE_INFO_BW_160;
1751 	else
1752 		rx_status.bw = RATE_INFO_BW_20;
1753 	if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
1754 		rx_status.enc_flags |= RX_ENC_FLAG_SHORT_GI;
1755 	/* TODO: simulate optional packet loss */
1756 	rx_status.signal = data->rx_rssi;
1757 	if (info->control.vif)
1758 		rx_status.signal += info->control.vif->bss_conf.txpower;
1759 
1760 	if (data->ps != PS_DISABLED)
1761 		hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1762 
1763 	/* release the skb's source info */
1764 	skb_orphan(skb);
1765 	skb_dst_drop(skb);
1766 	skb->mark = 0;
1767 	skb_ext_reset(skb);
1768 	nf_reset_ct(skb);
1769 
1770 	/*
1771 	 * Get absolute mactime here so all HWs RX at the "same time", and
1772 	 * absolute TX time for beacon mactime so the timestamp matches.
1773 	 * Giving beacons a different mactime than non-beacons looks messy, but
1774 	 * it helps the Toffset be exact and a ~10us mactime discrepancy
1775 	 * probably doesn't really matter.
1776 	 */
1777 	if (ieee80211_is_beacon(hdr->frame_control) ||
1778 	    ieee80211_is_probe_resp(hdr->frame_control)) {
1779 		rx_status.boottime_ns = ktime_get_boottime_ns();
1780 		now = data->abs_bcn_ts;
1781 	} else {
1782 		now = mac80211_hwsim_get_tsf_raw();
1783 	}
1784 
1785 	/* Copy skb to all enabled radios that are on the current frequency */
1786 	spin_lock(&hwsim_radio_lock);
1787 	list_for_each_entry(data2, &hwsim_radios, list) {
1788 		struct sk_buff *nskb;
1789 		struct tx_iter_data tx_iter_data = {
1790 			.receive = false,
1791 			.channel = chan,
1792 		};
1793 
1794 		if (data == data2)
1795 			continue;
1796 
1797 		if (!data2->started || (data2->idle && !data2->tmp_chan) ||
1798 		    !hwsim_ps_rx_ok(data2, skb))
1799 			continue;
1800 
1801 		if (!(data->group & data2->group))
1802 			continue;
1803 
1804 		if (data->netgroup != data2->netgroup)
1805 			continue;
1806 
1807 		if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
1808 		    !hwsim_chans_compat(chan, data2->channel)) {
1809 			ieee80211_iterate_active_interfaces_atomic(
1810 				data2->hw, IEEE80211_IFACE_ITER_NORMAL,
1811 				mac80211_hwsim_tx_iter, &tx_iter_data);
1812 			if (!tx_iter_data.receive)
1813 				continue;
1814 		}
1815 
1816 		/*
1817 		 * reserve some space for our vendor and the normal
1818 		 * radiotap header, since we're copying anyway
1819 		 */
1820 		if (skb->len < PAGE_SIZE && paged_rx) {
1821 			struct page *page = alloc_page(GFP_ATOMIC);
1822 
1823 			if (!page)
1824 				continue;
1825 
1826 			nskb = dev_alloc_skb(128);
1827 			if (!nskb) {
1828 				__free_page(page);
1829 				continue;
1830 			}
1831 
1832 			memcpy(page_address(page), skb->data, skb->len);
1833 			skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
1834 		} else {
1835 			nskb = skb_copy(skb, GFP_ATOMIC);
1836 			if (!nskb)
1837 				continue;
1838 		}
1839 
1840 		if (mac80211_hwsim_addr_match(data2, hdr->addr1))
1841 			ack = true;
1842 
1843 		rx_status.mactime = now + data2->tsf_offset;
1844 
1845 		mac80211_hwsim_rx(data2, &rx_status, nskb);
1846 	}
1847 	spin_unlock(&hwsim_radio_lock);
1848 
1849 	return ack;
1850 }
1851 
1852 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)1853 mac80211_hwsim_select_tx_link(struct mac80211_hwsim_data *data,
1854 			      struct ieee80211_vif *vif,
1855 			      struct ieee80211_sta *sta,
1856 			      struct ieee80211_hdr *hdr,
1857 			      struct ieee80211_link_sta **link_sta)
1858 {
1859 	struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
1860 	int i;
1861 
1862 	if (!ieee80211_vif_is_mld(vif))
1863 		return &vif->bss_conf;
1864 
1865 	WARN_ON(is_multicast_ether_addr(hdr->addr1));
1866 
1867 	if (WARN_ON_ONCE(!sta || !sta->valid_links))
1868 		return &vif->bss_conf;
1869 
1870 	for (i = 0; i < ARRAY_SIZE(vif->link_conf); i++) {
1871 		struct ieee80211_bss_conf *bss_conf;
1872 		unsigned int link_id;
1873 
1874 		/* round-robin the available link IDs */
1875 		link_id = (sp->last_link + i + 1) % ARRAY_SIZE(vif->link_conf);
1876 
1877 		if (!(vif->active_links & BIT(link_id)))
1878 			continue;
1879 
1880 		if (!(sp->active_links_rx & BIT(link_id)))
1881 			continue;
1882 
1883 		*link_sta = rcu_dereference(sta->link[link_id]);
1884 		if (!*link_sta)
1885 			continue;
1886 
1887 		bss_conf = rcu_dereference(vif->link_conf[link_id]);
1888 		if (WARN_ON_ONCE(!bss_conf))
1889 			continue;
1890 
1891 		/* can happen while switching links */
1892 		if (!rcu_access_pointer(bss_conf->chanctx_conf))
1893 			continue;
1894 
1895 		sp->last_link = link_id;
1896 		return bss_conf;
1897 	}
1898 
1899 	return NULL;
1900 }
1901 
mac80211_hwsim_tx(struct ieee80211_hw * hw,struct ieee80211_tx_control * control,struct sk_buff * skb)1902 static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
1903 			      struct ieee80211_tx_control *control,
1904 			      struct sk_buff *skb)
1905 {
1906 	struct mac80211_hwsim_data *data = hw->priv;
1907 	struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1908 	struct ieee80211_hdr *hdr = (void *)skb->data;
1909 	struct ieee80211_chanctx_conf *chanctx_conf;
1910 	struct ieee80211_channel *channel;
1911 	bool ack;
1912 	enum nl80211_chan_width confbw = NL80211_CHAN_WIDTH_20_NOHT;
1913 	u32 _portid, i;
1914 
1915 	if (WARN_ON(skb->len < 10)) {
1916 		/* Should not happen; just a sanity check for addr1 use */
1917 		ieee80211_free_txskb(hw, skb);
1918 		return;
1919 	}
1920 
1921 	if (!data->use_chanctx) {
1922 		channel = data->channel;
1923 		confbw = data->bw;
1924 	} else if (txi->hw_queue == 4) {
1925 		channel = data->tmp_chan;
1926 	} else {
1927 		u8 link = u32_get_bits(IEEE80211_SKB_CB(skb)->control.flags,
1928 				       IEEE80211_TX_CTRL_MLO_LINK);
1929 		struct ieee80211_vif *vif = txi->control.vif;
1930 		struct ieee80211_link_sta *link_sta = NULL;
1931 		struct ieee80211_sta *sta = control->sta;
1932 		struct ieee80211_bss_conf *bss_conf;
1933 
1934 		if (link != IEEE80211_LINK_UNSPECIFIED) {
1935 			bss_conf = rcu_dereference(txi->control.vif->link_conf[link]);
1936 			if (sta)
1937 				link_sta = rcu_dereference(sta->link[link]);
1938 		} else {
1939 			bss_conf = mac80211_hwsim_select_tx_link(data, vif, sta,
1940 								 hdr, &link_sta);
1941 		}
1942 
1943 		if (unlikely(!bss_conf)) {
1944 			/* if it's an MLO STA, it might have deactivated all
1945 			 * links temporarily - but we don't handle real PS in
1946 			 * this code yet, so just drop the frame in that case
1947 			 */
1948 			WARN(link != IEEE80211_LINK_UNSPECIFIED || !sta || !sta->mlo,
1949 			     "link:%d, sta:%pM, sta->mlo:%d\n",
1950 			     link, sta ? sta->addr : NULL, sta ? sta->mlo : -1);
1951 			ieee80211_free_txskb(hw, skb);
1952 			return;
1953 		}
1954 
1955 		if (sta && sta->mlo) {
1956 			if (WARN_ON(!link_sta)) {
1957 				ieee80211_free_txskb(hw, skb);
1958 				return;
1959 			}
1960 			/* address translation to link addresses on TX */
1961 			ether_addr_copy(hdr->addr1, link_sta->addr);
1962 			ether_addr_copy(hdr->addr2, bss_conf->addr);
1963 			/* translate A3 only if it's the BSSID */
1964 			if (!ieee80211_has_tods(hdr->frame_control) &&
1965 			    !ieee80211_has_fromds(hdr->frame_control)) {
1966 				if (ether_addr_equal(hdr->addr3, sta->addr))
1967 					ether_addr_copy(hdr->addr3, link_sta->addr);
1968 				else if (ether_addr_equal(hdr->addr3, vif->addr))
1969 					ether_addr_copy(hdr->addr3, bss_conf->addr);
1970 			}
1971 			/* no need to look at A4, if present it's SA */
1972 		}
1973 
1974 		chanctx_conf = rcu_dereference(bss_conf->chanctx_conf);
1975 		if (chanctx_conf) {
1976 			channel = chanctx_conf->def.chan;
1977 			confbw = chanctx_conf->def.width;
1978 		} else {
1979 			channel = NULL;
1980 		}
1981 	}
1982 
1983 	if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
1984 		ieee80211_free_txskb(hw, skb);
1985 		return;
1986 	}
1987 
1988 	if (data->idle && !data->tmp_chan) {
1989 		wiphy_dbg(hw->wiphy, "Trying to TX when idle - reject\n");
1990 		ieee80211_free_txskb(hw, skb);
1991 		return;
1992 	}
1993 
1994 	if (txi->control.vif)
1995 		hwsim_check_magic(txi->control.vif);
1996 	if (control->sta)
1997 		hwsim_check_sta_magic(control->sta);
1998 
1999 	if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE))
2000 		ieee80211_get_tx_rates(txi->control.vif, control->sta, skb,
2001 				       txi->control.rates,
2002 				       ARRAY_SIZE(txi->control.rates));
2003 
2004 	for (i = 0; i < ARRAY_SIZE(txi->control.rates); i++) {
2005 		u16 rflags = txi->control.rates[i].flags;
2006 		/* initialize to data->bw for 5/10 MHz handling */
2007 		enum nl80211_chan_width bw = data->bw;
2008 
2009 		if (txi->control.rates[i].idx == -1)
2010 			break;
2011 
2012 		if (rflags & IEEE80211_TX_RC_40_MHZ_WIDTH)
2013 			bw = NL80211_CHAN_WIDTH_40;
2014 		else if (rflags & IEEE80211_TX_RC_80_MHZ_WIDTH)
2015 			bw = NL80211_CHAN_WIDTH_80;
2016 		else if (rflags & IEEE80211_TX_RC_160_MHZ_WIDTH)
2017 			bw = NL80211_CHAN_WIDTH_160;
2018 
2019 		if (WARN_ON(hwsim_get_chanwidth(bw) > hwsim_get_chanwidth(confbw)))
2020 			return;
2021 	}
2022 
2023 	if (skb->len >= 24 + 8 &&
2024 	    ieee80211_is_probe_resp(hdr->frame_control)) {
2025 		/* fake header transmission time */
2026 		struct ieee80211_mgmt *mgmt;
2027 		struct ieee80211_rate *txrate;
2028 		/* TODO: get MCS */
2029 		int bitrate = 100;
2030 		u64 ts;
2031 
2032 		mgmt = (struct ieee80211_mgmt *)skb->data;
2033 		txrate = ieee80211_get_tx_rate(hw, txi);
2034 		if (txrate)
2035 			bitrate = txrate->bitrate;
2036 		ts = mac80211_hwsim_get_tsf_raw();
2037 		mgmt->u.probe_resp.timestamp =
2038 			cpu_to_le64(ts + data->tsf_offset +
2039 				    24 * 8 * 10 / bitrate);
2040 	}
2041 
2042 	mac80211_hwsim_monitor_rx(hw, skb, channel);
2043 
2044 	/* wmediumd mode check */
2045 	_portid = READ_ONCE(data->wmediumd);
2046 
2047 	if (_portid || hwsim_virtio_enabled)
2048 		return mac80211_hwsim_tx_frame_nl(hw, skb, _portid, channel);
2049 
2050 	/* NO wmediumd detected, perfect medium simulation */
2051 	data->tx_pkts++;
2052 	data->tx_bytes += skb->len;
2053 	ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
2054 
2055 	if (ack && skb->len >= 16)
2056 		mac80211_hwsim_monitor_ack(channel, hdr->addr2);
2057 
2058 	ieee80211_tx_info_clear_status(txi);
2059 
2060 	/* frame was transmitted at most favorable rate at first attempt */
2061 	txi->control.rates[0].count = 1;
2062 	txi->control.rates[1].idx = -1;
2063 
2064 	if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
2065 		txi->flags |= IEEE80211_TX_STAT_ACK;
2066 	ieee80211_tx_status_irqsafe(hw, skb);
2067 }
2068 
2069 
mac80211_hwsim_start(struct ieee80211_hw * hw)2070 static int mac80211_hwsim_start(struct ieee80211_hw *hw)
2071 {
2072 	struct mac80211_hwsim_data *data = hw->priv;
2073 	wiphy_dbg(hw->wiphy, "%s\n", __func__);
2074 	data->started = true;
2075 	return 0;
2076 }
2077 
2078 
mac80211_hwsim_stop(struct ieee80211_hw * hw)2079 static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
2080 {
2081 	struct mac80211_hwsim_data *data = hw->priv;
2082 	int i;
2083 
2084 	data->started = false;
2085 
2086 	for (i = 0; i < ARRAY_SIZE(data->link_data); i++)
2087 		hrtimer_cancel(&data->link_data[i].beacon_timer);
2088 
2089 	while (!skb_queue_empty(&data->pending))
2090 		ieee80211_free_txskb(hw, skb_dequeue(&data->pending));
2091 
2092 	wiphy_dbg(hw->wiphy, "%s\n", __func__);
2093 }
2094 
2095 
mac80211_hwsim_add_interface(struct ieee80211_hw * hw,struct ieee80211_vif * vif)2096 static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
2097 					struct ieee80211_vif *vif)
2098 {
2099 	wiphy_dbg(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2100 		  __func__, ieee80211_vif_type_p2p(vif),
2101 		  vif->addr);
2102 	hwsim_set_magic(vif);
2103 
2104 	if (vif->type != NL80211_IFTYPE_MONITOR)
2105 		mac80211_hwsim_config_mac_nl(hw, vif->addr, true);
2106 
2107 	vif->cab_queue = 0;
2108 	vif->hw_queue[IEEE80211_AC_VO] = 0;
2109 	vif->hw_queue[IEEE80211_AC_VI] = 1;
2110 	vif->hw_queue[IEEE80211_AC_BE] = 2;
2111 	vif->hw_queue[IEEE80211_AC_BK] = 3;
2112 
2113 	return 0;
2114 }
2115 
2116 
mac80211_hwsim_change_interface(struct ieee80211_hw * hw,struct ieee80211_vif * vif,enum nl80211_iftype newtype,bool newp2p)2117 static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
2118 					   struct ieee80211_vif *vif,
2119 					   enum nl80211_iftype newtype,
2120 					   bool newp2p)
2121 {
2122 	newtype = ieee80211_iftype_p2p(newtype, newp2p);
2123 	wiphy_dbg(hw->wiphy,
2124 		  "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
2125 		  __func__, ieee80211_vif_type_p2p(vif),
2126 		    newtype, vif->addr);
2127 	hwsim_check_magic(vif);
2128 
2129 	/*
2130 	 * interface may change from non-AP to AP in
2131 	 * which case this needs to be set up again
2132 	 */
2133 	vif->cab_queue = 0;
2134 
2135 	return 0;
2136 }
2137 
mac80211_hwsim_remove_interface(struct ieee80211_hw * hw,struct ieee80211_vif * vif)2138 static void mac80211_hwsim_remove_interface(
2139 	struct ieee80211_hw *hw, struct ieee80211_vif *vif)
2140 {
2141 	wiphy_dbg(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2142 		  __func__, ieee80211_vif_type_p2p(vif),
2143 		  vif->addr);
2144 	hwsim_check_magic(vif);
2145 	hwsim_clear_magic(vif);
2146 	if (vif->type != NL80211_IFTYPE_MONITOR)
2147 		mac80211_hwsim_config_mac_nl(hw, vif->addr, false);
2148 }
2149 
mac80211_hwsim_tx_frame(struct ieee80211_hw * hw,struct sk_buff * skb,struct ieee80211_channel * chan)2150 static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
2151 				    struct sk_buff *skb,
2152 				    struct ieee80211_channel *chan)
2153 {
2154 	struct mac80211_hwsim_data *data = hw->priv;
2155 	u32 _portid = READ_ONCE(data->wmediumd);
2156 
2157 	if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE)) {
2158 		struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
2159 		ieee80211_get_tx_rates(txi->control.vif, NULL, skb,
2160 				       txi->control.rates,
2161 				       ARRAY_SIZE(txi->control.rates));
2162 	}
2163 
2164 	mac80211_hwsim_monitor_rx(hw, skb, chan);
2165 
2166 	if (_portid || hwsim_virtio_enabled)
2167 		return mac80211_hwsim_tx_frame_nl(hw, skb, _portid, chan);
2168 
2169 	data->tx_pkts++;
2170 	data->tx_bytes += skb->len;
2171 	mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
2172 	dev_kfree_skb(skb);
2173 }
2174 
__mac80211_hwsim_beacon_tx(struct ieee80211_bss_conf * link_conf,struct mac80211_hwsim_data * data,struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct sk_buff * skb)2175 static void __mac80211_hwsim_beacon_tx(struct ieee80211_bss_conf *link_conf,
2176 				       struct mac80211_hwsim_data *data,
2177 				       struct ieee80211_hw *hw,
2178 				       struct ieee80211_vif *vif,
2179 				       struct sk_buff *skb)
2180 {
2181 	struct ieee80211_tx_info *info;
2182 	struct ieee80211_rate *txrate;
2183 	struct ieee80211_mgmt *mgmt;
2184 	/* TODO: get MCS */
2185 	int bitrate = 100;
2186 
2187 	info = IEEE80211_SKB_CB(skb);
2188 	if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE))
2189 		ieee80211_get_tx_rates(vif, NULL, skb,
2190 				       info->control.rates,
2191 				       ARRAY_SIZE(info->control.rates));
2192 
2193 	txrate = ieee80211_get_tx_rate(hw, info);
2194 	if (txrate)
2195 		bitrate = txrate->bitrate;
2196 
2197 	mgmt = (struct ieee80211_mgmt *) skb->data;
2198 	/* fake header transmission time */
2199 	data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
2200 	if (ieee80211_is_s1g_beacon(mgmt->frame_control)) {
2201 		struct ieee80211_ext *ext = (void *) mgmt;
2202 
2203 		ext->u.s1g_beacon.timestamp = cpu_to_le32(data->abs_bcn_ts +
2204 							  data->tsf_offset +
2205 							  10 * 8 * 10 /
2206 							  bitrate);
2207 	} else {
2208 		mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
2209 						       data->tsf_offset +
2210 						       24 * 8 * 10 /
2211 						       bitrate);
2212 	}
2213 
2214 	mac80211_hwsim_tx_frame(hw, skb,
2215 			rcu_dereference(link_conf->chanctx_conf)->def.chan);
2216 }
2217 
mac80211_hwsim_beacon_tx(void * arg,u8 * mac,struct ieee80211_vif * vif)2218 static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
2219 				     struct ieee80211_vif *vif)
2220 {
2221 	struct mac80211_hwsim_link_data *link_data = arg;
2222 	u32 link_id = link_data->link_id;
2223 	struct ieee80211_bss_conf *link_conf;
2224 	struct mac80211_hwsim_data *data =
2225 		container_of(link_data, struct mac80211_hwsim_data,
2226 			     link_data[link_id]);
2227 	struct ieee80211_hw *hw = data->hw;
2228 	struct sk_buff *skb;
2229 
2230 	hwsim_check_magic(vif);
2231 
2232 	link_conf = rcu_dereference(vif->link_conf[link_id]);
2233 	if (!link_conf)
2234 		return;
2235 
2236 	if (vif->type != NL80211_IFTYPE_AP &&
2237 	    vif->type != NL80211_IFTYPE_MESH_POINT &&
2238 	    vif->type != NL80211_IFTYPE_ADHOC &&
2239 	    vif->type != NL80211_IFTYPE_OCB)
2240 		return;
2241 
2242 	if (vif->mbssid_tx_vif && vif->mbssid_tx_vif != vif)
2243 		return;
2244 
2245 	if (vif->bss_conf.ema_ap) {
2246 		struct ieee80211_ema_beacons *ema;
2247 		u8 i = 0;
2248 
2249 		ema = ieee80211_beacon_get_template_ema_list(hw, vif, link_id);
2250 		if (!ema || !ema->cnt)
2251 			return;
2252 
2253 		for (i = 0; i < ema->cnt; i++) {
2254 			__mac80211_hwsim_beacon_tx(link_conf, data, hw, vif,
2255 						   ema->bcn[i].skb);
2256 			ema->bcn[i].skb = NULL; /* Already freed */
2257 		}
2258 		ieee80211_beacon_free_ema_list(ema);
2259 	} else {
2260 		skb = ieee80211_beacon_get(hw, vif, link_id);
2261 		if (!skb)
2262 			return;
2263 
2264 		__mac80211_hwsim_beacon_tx(link_conf, data, hw, vif, skb);
2265 	}
2266 
2267 	while ((skb = ieee80211_get_buffered_bc(hw, vif)) != NULL) {
2268 		mac80211_hwsim_tx_frame(hw, skb,
2269 			rcu_dereference(link_conf->chanctx_conf)->def.chan);
2270 	}
2271 
2272 	if (link_conf->csa_active && ieee80211_beacon_cntdwn_is_complete(vif))
2273 		ieee80211_csa_finish(vif);
2274 }
2275 
2276 static enum hrtimer_restart
mac80211_hwsim_beacon(struct hrtimer * timer)2277 mac80211_hwsim_beacon(struct hrtimer *timer)
2278 {
2279 	struct mac80211_hwsim_link_data *link_data =
2280 		container_of(timer, struct mac80211_hwsim_link_data, beacon_timer);
2281 	struct mac80211_hwsim_data *data =
2282 		container_of(link_data, struct mac80211_hwsim_data,
2283 			     link_data[link_data->link_id]);
2284 	struct ieee80211_hw *hw = data->hw;
2285 	u64 bcn_int = link_data->beacon_int;
2286 
2287 	if (!data->started)
2288 		return HRTIMER_NORESTART;
2289 
2290 	ieee80211_iterate_active_interfaces_atomic(
2291 		hw, IEEE80211_IFACE_ITER_NORMAL,
2292 		mac80211_hwsim_beacon_tx, link_data);
2293 
2294 	/* beacon at new TBTT + beacon interval */
2295 	if (data->bcn_delta) {
2296 		bcn_int -= data->bcn_delta;
2297 		data->bcn_delta = 0;
2298 	}
2299 	hrtimer_forward_now(&link_data->beacon_timer,
2300 			    ns_to_ktime(bcn_int * NSEC_PER_USEC));
2301 	return HRTIMER_RESTART;
2302 }
2303 
2304 static const char * const hwsim_chanwidths[] = {
2305 	[NL80211_CHAN_WIDTH_5] = "ht5",
2306 	[NL80211_CHAN_WIDTH_10] = "ht10",
2307 	[NL80211_CHAN_WIDTH_20_NOHT] = "noht",
2308 	[NL80211_CHAN_WIDTH_20] = "ht20",
2309 	[NL80211_CHAN_WIDTH_40] = "ht40",
2310 	[NL80211_CHAN_WIDTH_80] = "vht80",
2311 	[NL80211_CHAN_WIDTH_80P80] = "vht80p80",
2312 	[NL80211_CHAN_WIDTH_160] = "vht160",
2313 	[NL80211_CHAN_WIDTH_1] = "1MHz",
2314 	[NL80211_CHAN_WIDTH_2] = "2MHz",
2315 	[NL80211_CHAN_WIDTH_4] = "4MHz",
2316 	[NL80211_CHAN_WIDTH_8] = "8MHz",
2317 	[NL80211_CHAN_WIDTH_16] = "16MHz",
2318 };
2319 
mac80211_hwsim_config(struct ieee80211_hw * hw,u32 changed)2320 static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
2321 {
2322 	struct mac80211_hwsim_data *data = hw->priv;
2323 	struct ieee80211_conf *conf = &hw->conf;
2324 	static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
2325 		[IEEE80211_SMPS_AUTOMATIC] = "auto",
2326 		[IEEE80211_SMPS_OFF] = "off",
2327 		[IEEE80211_SMPS_STATIC] = "static",
2328 		[IEEE80211_SMPS_DYNAMIC] = "dynamic",
2329 	};
2330 	int idx;
2331 
2332 	if (conf->chandef.chan)
2333 		wiphy_dbg(hw->wiphy,
2334 			  "%s (freq=%d(%d - %d)/%s idle=%d ps=%d smps=%s)\n",
2335 			  __func__,
2336 			  conf->chandef.chan->center_freq,
2337 			  conf->chandef.center_freq1,
2338 			  conf->chandef.center_freq2,
2339 			  hwsim_chanwidths[conf->chandef.width],
2340 			  !!(conf->flags & IEEE80211_CONF_IDLE),
2341 			  !!(conf->flags & IEEE80211_CONF_PS),
2342 			  smps_modes[conf->smps_mode]);
2343 	else
2344 		wiphy_dbg(hw->wiphy,
2345 			  "%s (freq=0 idle=%d ps=%d smps=%s)\n",
2346 			  __func__,
2347 			  !!(conf->flags & IEEE80211_CONF_IDLE),
2348 			  !!(conf->flags & IEEE80211_CONF_PS),
2349 			  smps_modes[conf->smps_mode]);
2350 
2351 	data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
2352 
2353 	WARN_ON(conf->chandef.chan && data->use_chanctx);
2354 
2355 	mutex_lock(&data->mutex);
2356 	if (data->scanning && conf->chandef.chan) {
2357 		for (idx = 0; idx < ARRAY_SIZE(data->survey_data); idx++) {
2358 			if (data->survey_data[idx].channel == data->channel) {
2359 				data->survey_data[idx].start =
2360 					data->survey_data[idx].next_start;
2361 				data->survey_data[idx].end = jiffies;
2362 				break;
2363 			}
2364 		}
2365 
2366 		data->channel = conf->chandef.chan;
2367 		data->bw = conf->chandef.width;
2368 
2369 		for (idx = 0; idx < ARRAY_SIZE(data->survey_data); idx++) {
2370 			if (data->survey_data[idx].channel &&
2371 			    data->survey_data[idx].channel != data->channel)
2372 				continue;
2373 			data->survey_data[idx].channel = data->channel;
2374 			data->survey_data[idx].next_start = jiffies;
2375 			break;
2376 		}
2377 	} else {
2378 		data->channel = conf->chandef.chan;
2379 		data->bw = conf->chandef.width;
2380 	}
2381 	mutex_unlock(&data->mutex);
2382 
2383 	for (idx = 0; idx < ARRAY_SIZE(data->link_data); idx++) {
2384 		struct mac80211_hwsim_link_data *link_data =
2385 			&data->link_data[idx];
2386 
2387 		if (!data->started || !link_data->beacon_int) {
2388 			hrtimer_cancel(&link_data->beacon_timer);
2389 		} else if (!hrtimer_is_queued(&link_data->beacon_timer)) {
2390 			u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
2391 			u32 bcn_int = link_data->beacon_int;
2392 			u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
2393 
2394 			hrtimer_start(&link_data->beacon_timer,
2395 				      ns_to_ktime(until_tbtt * NSEC_PER_USEC),
2396 				      HRTIMER_MODE_REL_SOFT);
2397 		}
2398 	}
2399 
2400 	return 0;
2401 }
2402 
2403 
mac80211_hwsim_configure_filter(struct ieee80211_hw * hw,unsigned int changed_flags,unsigned int * total_flags,u64 multicast)2404 static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
2405 					    unsigned int changed_flags,
2406 					    unsigned int *total_flags,u64 multicast)
2407 {
2408 	struct mac80211_hwsim_data *data = hw->priv;
2409 
2410 	wiphy_dbg(hw->wiphy, "%s\n", __func__);
2411 
2412 	data->rx_filter = 0;
2413 	if (*total_flags & FIF_ALLMULTI)
2414 		data->rx_filter |= FIF_ALLMULTI;
2415 	if (*total_flags & FIF_MCAST_ACTION)
2416 		data->rx_filter |= FIF_MCAST_ACTION;
2417 
2418 	*total_flags = data->rx_filter;
2419 }
2420 
mac80211_hwsim_bcn_en_iter(void * data,u8 * mac,struct ieee80211_vif * vif)2421 static void mac80211_hwsim_bcn_en_iter(void *data, u8 *mac,
2422 				       struct ieee80211_vif *vif)
2423 {
2424 	unsigned int *count = data;
2425 	struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
2426 
2427 	if (vp->bcn_en)
2428 		(*count)++;
2429 }
2430 
mac80211_hwsim_vif_info_changed(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u64 changed)2431 static void mac80211_hwsim_vif_info_changed(struct ieee80211_hw *hw,
2432 					    struct ieee80211_vif *vif,
2433 					    u64 changed)
2434 {
2435 	struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
2436 
2437 	hwsim_check_magic(vif);
2438 
2439 	wiphy_dbg(hw->wiphy, "%s(changed=0x%llx vif->addr=%pM)\n",
2440 		  __func__, changed, vif->addr);
2441 
2442 	if (changed & BSS_CHANGED_ASSOC) {
2443 		wiphy_dbg(hw->wiphy, "  ASSOC: assoc=%d aid=%d\n",
2444 			  vif->cfg.assoc, vif->cfg.aid);
2445 		vp->assoc = vif->cfg.assoc;
2446 		vp->aid = vif->cfg.aid;
2447 	}
2448 }
2449 
mac80211_hwsim_link_info_changed(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * info,u64 changed)2450 static void mac80211_hwsim_link_info_changed(struct ieee80211_hw *hw,
2451 					     struct ieee80211_vif *vif,
2452 					     struct ieee80211_bss_conf *info,
2453 					     u64 changed)
2454 {
2455 	struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
2456 	struct mac80211_hwsim_data *data = hw->priv;
2457 	unsigned int link_id = info->link_id;
2458 	struct mac80211_hwsim_link_data *link_data = &data->link_data[link_id];
2459 
2460 	hwsim_check_magic(vif);
2461 
2462 	wiphy_dbg(hw->wiphy, "%s(changed=0x%llx vif->addr=%pM, link id %u)\n",
2463 		  __func__, (unsigned long long)changed, vif->addr, link_id);
2464 
2465 	if (changed & BSS_CHANGED_BSSID) {
2466 		wiphy_dbg(hw->wiphy, "%s: BSSID changed: %pM\n",
2467 			  __func__, info->bssid);
2468 		memcpy(vp->bssid, info->bssid, ETH_ALEN);
2469 	}
2470 
2471 	if (changed & BSS_CHANGED_BEACON_ENABLED) {
2472 		wiphy_dbg(hw->wiphy, "  BCN EN: %d (BI=%u)\n",
2473 			  info->enable_beacon, info->beacon_int);
2474 		vp->bcn_en = info->enable_beacon;
2475 		if (data->started &&
2476 		    !hrtimer_is_queued(&link_data->beacon_timer) &&
2477 		    info->enable_beacon) {
2478 			u64 tsf, until_tbtt;
2479 			u32 bcn_int;
2480 			link_data->beacon_int = info->beacon_int * 1024;
2481 			tsf = mac80211_hwsim_get_tsf(hw, vif);
2482 			bcn_int = link_data->beacon_int;
2483 			until_tbtt = bcn_int - do_div(tsf, bcn_int);
2484 
2485 			hrtimer_start(&link_data->beacon_timer,
2486 				      ns_to_ktime(until_tbtt * NSEC_PER_USEC),
2487 				      HRTIMER_MODE_REL_SOFT);
2488 		} else if (!info->enable_beacon) {
2489 			unsigned int count = 0;
2490 			ieee80211_iterate_active_interfaces_atomic(
2491 				data->hw, IEEE80211_IFACE_ITER_NORMAL,
2492 				mac80211_hwsim_bcn_en_iter, &count);
2493 			wiphy_dbg(hw->wiphy, "  beaconing vifs remaining: %u",
2494 				  count);
2495 			if (count == 0) {
2496 				hrtimer_cancel(&link_data->beacon_timer);
2497 				link_data->beacon_int = 0;
2498 			}
2499 		}
2500 	}
2501 
2502 	if (changed & BSS_CHANGED_ERP_CTS_PROT) {
2503 		wiphy_dbg(hw->wiphy, "  ERP_CTS_PROT: %d\n",
2504 			  info->use_cts_prot);
2505 	}
2506 
2507 	if (changed & BSS_CHANGED_ERP_PREAMBLE) {
2508 		wiphy_dbg(hw->wiphy, "  ERP_PREAMBLE: %d\n",
2509 			  info->use_short_preamble);
2510 	}
2511 
2512 	if (changed & BSS_CHANGED_ERP_SLOT) {
2513 		wiphy_dbg(hw->wiphy, "  ERP_SLOT: %d\n", info->use_short_slot);
2514 	}
2515 
2516 	if (changed & BSS_CHANGED_HT) {
2517 		wiphy_dbg(hw->wiphy, "  HT: op_mode=0x%x\n",
2518 			  info->ht_operation_mode);
2519 	}
2520 
2521 	if (changed & BSS_CHANGED_BASIC_RATES) {
2522 		wiphy_dbg(hw->wiphy, "  BASIC_RATES: 0x%llx\n",
2523 			  (unsigned long long) info->basic_rates);
2524 	}
2525 
2526 	if (changed & BSS_CHANGED_TXPOWER)
2527 		wiphy_dbg(hw->wiphy, "  TX Power: %d dBm\n", info->txpower);
2528 }
2529 
2530 static void
mac80211_hwsim_sta_rc_update(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,u32 changed)2531 mac80211_hwsim_sta_rc_update(struct ieee80211_hw *hw,
2532 			     struct ieee80211_vif *vif,
2533 			     struct ieee80211_sta *sta,
2534 			     u32 changed)
2535 {
2536 	struct mac80211_hwsim_data *data = hw->priv;
2537 	u32 bw = U32_MAX;
2538 	int link_id;
2539 
2540 	rcu_read_lock();
2541 	for (link_id = 0;
2542 	     link_id < ARRAY_SIZE(vif->link_conf);
2543 	     link_id++) {
2544 		enum nl80211_chan_width confbw = NL80211_CHAN_WIDTH_20_NOHT;
2545 		struct ieee80211_bss_conf *vif_conf;
2546 		struct ieee80211_link_sta *link_sta;
2547 
2548 		link_sta = rcu_dereference(sta->link[link_id]);
2549 
2550 		if (!link_sta)
2551 			continue;
2552 
2553 		switch (link_sta->bandwidth) {
2554 #define C(_bw) case IEEE80211_STA_RX_BW_##_bw: bw = _bw; break
2555 		C(20);
2556 		C(40);
2557 		C(80);
2558 		C(160);
2559 		C(320);
2560 #undef C
2561 		}
2562 
2563 		if (!data->use_chanctx) {
2564 			confbw = data->bw;
2565 		} else {
2566 			struct ieee80211_chanctx_conf *chanctx_conf;
2567 
2568 			vif_conf = rcu_dereference(vif->link_conf[link_id]);
2569 			if (WARN_ON(!vif_conf))
2570 				continue;
2571 
2572 			chanctx_conf = rcu_dereference(vif_conf->chanctx_conf);
2573 
2574 			if (!WARN_ON(!chanctx_conf))
2575 				confbw = chanctx_conf->def.width;
2576 		}
2577 
2578 		WARN(bw > hwsim_get_chanwidth(confbw),
2579 		     "intf %pM [link=%d]: bad STA %pM bandwidth %d MHz (%d) > channel config %d MHz (%d)\n",
2580 		     vif->addr, link_id, sta->addr, bw, sta->deflink.bandwidth,
2581 		     hwsim_get_chanwidth(data->bw), data->bw);
2582 
2583 
2584 	}
2585 	rcu_read_unlock();
2586 
2587 
2588 }
2589 
mac80211_hwsim_sta_add(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta)2590 static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
2591 				  struct ieee80211_vif *vif,
2592 				  struct ieee80211_sta *sta)
2593 {
2594 	struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
2595 
2596 	hwsim_check_magic(vif);
2597 	hwsim_set_sta_magic(sta);
2598 	mac80211_hwsim_sta_rc_update(hw, vif, sta, 0);
2599 
2600 	if (sta->valid_links) {
2601 		WARN(hweight16(sta->valid_links) > 1,
2602 		     "expect to add STA with single link, have 0x%x\n",
2603 		     sta->valid_links);
2604 		sp->active_links_rx = sta->valid_links;
2605 	}
2606 
2607 	return 0;
2608 }
2609 
mac80211_hwsim_sta_remove(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta)2610 static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
2611 				     struct ieee80211_vif *vif,
2612 				     struct ieee80211_sta *sta)
2613 {
2614 	hwsim_check_magic(vif);
2615 	hwsim_clear_sta_magic(sta);
2616 
2617 	return 0;
2618 }
2619 
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)2620 static int mac80211_hwsim_sta_state(struct ieee80211_hw *hw,
2621 				    struct ieee80211_vif *vif,
2622 				    struct ieee80211_sta *sta,
2623 				    enum ieee80211_sta_state old_state,
2624 				    enum ieee80211_sta_state new_state)
2625 {
2626 	if (new_state == IEEE80211_STA_NOTEXIST)
2627 		return mac80211_hwsim_sta_remove(hw, vif, sta);
2628 
2629 	if (old_state == IEEE80211_STA_NOTEXIST)
2630 		return mac80211_hwsim_sta_add(hw, vif, sta);
2631 
2632 	/*
2633 	 * when client is authorized (AP station marked as such),
2634 	 * enable all links
2635 	 */
2636 	if (vif->type == NL80211_IFTYPE_STATION &&
2637 	    new_state == IEEE80211_STA_AUTHORIZED && !sta->tdls)
2638 		ieee80211_set_active_links_async(vif,
2639 						 ieee80211_vif_usable_links(vif));
2640 
2641 	return 0;
2642 }
2643 
mac80211_hwsim_sta_notify(struct ieee80211_hw * hw,struct ieee80211_vif * vif,enum sta_notify_cmd cmd,struct ieee80211_sta * sta)2644 static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
2645 				      struct ieee80211_vif *vif,
2646 				      enum sta_notify_cmd cmd,
2647 				      struct ieee80211_sta *sta)
2648 {
2649 	hwsim_check_magic(vif);
2650 
2651 	switch (cmd) {
2652 	case STA_NOTIFY_SLEEP:
2653 	case STA_NOTIFY_AWAKE:
2654 		/* TODO: make good use of these flags */
2655 		break;
2656 	default:
2657 		WARN(1, "Invalid sta notify: %d\n", cmd);
2658 		break;
2659 	}
2660 }
2661 
mac80211_hwsim_set_tim(struct ieee80211_hw * hw,struct ieee80211_sta * sta,bool set)2662 static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
2663 				  struct ieee80211_sta *sta,
2664 				  bool set)
2665 {
2666 	hwsim_check_sta_magic(sta);
2667 	return 0;
2668 }
2669 
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)2670 static int mac80211_hwsim_conf_tx(struct ieee80211_hw *hw,
2671 				  struct ieee80211_vif *vif,
2672 				  unsigned int link_id, u16 queue,
2673 				  const struct ieee80211_tx_queue_params *params)
2674 {
2675 	wiphy_dbg(hw->wiphy,
2676 		  "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
2677 		  __func__, queue,
2678 		  params->txop, params->cw_min,
2679 		  params->cw_max, params->aifs);
2680 	return 0;
2681 }
2682 
mac80211_hwsim_get_survey(struct ieee80211_hw * hw,int idx,struct survey_info * survey)2683 static int mac80211_hwsim_get_survey(struct ieee80211_hw *hw, int idx,
2684 				     struct survey_info *survey)
2685 {
2686 	struct mac80211_hwsim_data *hwsim = hw->priv;
2687 
2688 	if (idx < 0 || idx >= ARRAY_SIZE(hwsim->survey_data))
2689 		return -ENOENT;
2690 
2691 	mutex_lock(&hwsim->mutex);
2692 	survey->channel = hwsim->survey_data[idx].channel;
2693 	if (!survey->channel) {
2694 		mutex_unlock(&hwsim->mutex);
2695 		return -ENOENT;
2696 	}
2697 
2698 	/*
2699 	 * Magically conjured dummy values --- this is only ok for simulated hardware.
2700 	 *
2701 	 * A real driver which cannot determine real values noise MUST NOT
2702 	 * report any, especially not a magically conjured ones :-)
2703 	 */
2704 	survey->filled = SURVEY_INFO_NOISE_DBM |
2705 			 SURVEY_INFO_TIME |
2706 			 SURVEY_INFO_TIME_BUSY;
2707 	survey->noise = -92;
2708 	survey->time =
2709 		jiffies_to_msecs(hwsim->survey_data[idx].end -
2710 				 hwsim->survey_data[idx].start);
2711 	/* report 12.5% of channel time is used */
2712 	survey->time_busy = survey->time/8;
2713 	mutex_unlock(&hwsim->mutex);
2714 
2715 	return 0;
2716 }
2717 
2718 #ifdef CONFIG_NL80211_TESTMODE
2719 /*
2720  * This section contains example code for using netlink
2721  * attributes with the testmode command in nl80211.
2722  */
2723 
2724 /* These enums need to be kept in sync with userspace */
2725 enum hwsim_testmode_attr {
2726 	__HWSIM_TM_ATTR_INVALID	= 0,
2727 	HWSIM_TM_ATTR_CMD	= 1,
2728 	HWSIM_TM_ATTR_PS	= 2,
2729 
2730 	/* keep last */
2731 	__HWSIM_TM_ATTR_AFTER_LAST,
2732 	HWSIM_TM_ATTR_MAX	= __HWSIM_TM_ATTR_AFTER_LAST - 1
2733 };
2734 
2735 enum hwsim_testmode_cmd {
2736 	HWSIM_TM_CMD_SET_PS		= 0,
2737 	HWSIM_TM_CMD_GET_PS		= 1,
2738 	HWSIM_TM_CMD_STOP_QUEUES	= 2,
2739 	HWSIM_TM_CMD_WAKE_QUEUES	= 3,
2740 };
2741 
2742 static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
2743 	[HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
2744 	[HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
2745 };
2746 
mac80211_hwsim_testmode_cmd(struct ieee80211_hw * hw,struct ieee80211_vif * vif,void * data,int len)2747 static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
2748 				       struct ieee80211_vif *vif,
2749 				       void *data, int len)
2750 {
2751 	struct mac80211_hwsim_data *hwsim = hw->priv;
2752 	struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
2753 	struct sk_buff *skb;
2754 	int err, ps;
2755 
2756 	err = nla_parse_deprecated(tb, HWSIM_TM_ATTR_MAX, data, len,
2757 				   hwsim_testmode_policy, NULL);
2758 	if (err)
2759 		return err;
2760 
2761 	if (!tb[HWSIM_TM_ATTR_CMD])
2762 		return -EINVAL;
2763 
2764 	switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
2765 	case HWSIM_TM_CMD_SET_PS:
2766 		if (!tb[HWSIM_TM_ATTR_PS])
2767 			return -EINVAL;
2768 		ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
2769 		return hwsim_fops_ps_write(hwsim, ps);
2770 	case HWSIM_TM_CMD_GET_PS:
2771 		skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
2772 						nla_total_size(sizeof(u32)));
2773 		if (!skb)
2774 			return -ENOMEM;
2775 		if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
2776 			goto nla_put_failure;
2777 		return cfg80211_testmode_reply(skb);
2778 	case HWSIM_TM_CMD_STOP_QUEUES:
2779 		ieee80211_stop_queues(hw);
2780 		return 0;
2781 	case HWSIM_TM_CMD_WAKE_QUEUES:
2782 		ieee80211_wake_queues(hw);
2783 		return 0;
2784 	default:
2785 		return -EOPNOTSUPP;
2786 	}
2787 
2788  nla_put_failure:
2789 	kfree_skb(skb);
2790 	return -ENOBUFS;
2791 }
2792 #endif
2793 
mac80211_hwsim_ampdu_action(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_ampdu_params * params)2794 static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
2795 				       struct ieee80211_vif *vif,
2796 				       struct ieee80211_ampdu_params *params)
2797 {
2798 	struct ieee80211_sta *sta = params->sta;
2799 	enum ieee80211_ampdu_mlme_action action = params->action;
2800 	u16 tid = params->tid;
2801 
2802 	switch (action) {
2803 	case IEEE80211_AMPDU_TX_START:
2804 		return IEEE80211_AMPDU_TX_START_IMMEDIATE;
2805 	case IEEE80211_AMPDU_TX_STOP_CONT:
2806 	case IEEE80211_AMPDU_TX_STOP_FLUSH:
2807 	case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
2808 		ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
2809 		break;
2810 	case IEEE80211_AMPDU_TX_OPERATIONAL:
2811 		break;
2812 	case IEEE80211_AMPDU_RX_START:
2813 	case IEEE80211_AMPDU_RX_STOP:
2814 		break;
2815 	default:
2816 		return -EOPNOTSUPP;
2817 	}
2818 
2819 	return 0;
2820 }
2821 
mac80211_hwsim_flush(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u32 queues,bool drop)2822 static void mac80211_hwsim_flush(struct ieee80211_hw *hw,
2823 				 struct ieee80211_vif *vif,
2824 				 u32 queues, bool drop)
2825 {
2826 	/* Not implemented, queues only on kernel side */
2827 }
2828 
hw_scan_work(struct work_struct * work)2829 static void hw_scan_work(struct work_struct *work)
2830 {
2831 	struct mac80211_hwsim_data *hwsim =
2832 		container_of(work, struct mac80211_hwsim_data, hw_scan.work);
2833 	struct cfg80211_scan_request *req = hwsim->hw_scan_request;
2834 	int dwell, i;
2835 
2836 	mutex_lock(&hwsim->mutex);
2837 	if (hwsim->scan_chan_idx >= req->n_channels) {
2838 		struct cfg80211_scan_info info = {
2839 			.aborted = false,
2840 		};
2841 
2842 		wiphy_dbg(hwsim->hw->wiphy, "hw scan complete\n");
2843 		ieee80211_scan_completed(hwsim->hw, &info);
2844 		hwsim->hw_scan_request = NULL;
2845 		hwsim->hw_scan_vif = NULL;
2846 		hwsim->tmp_chan = NULL;
2847 		mutex_unlock(&hwsim->mutex);
2848 		mac80211_hwsim_config_mac_nl(hwsim->hw, hwsim->scan_addr,
2849 					     false);
2850 		return;
2851 	}
2852 
2853 	wiphy_dbg(hwsim->hw->wiphy, "hw scan %d MHz\n",
2854 		  req->channels[hwsim->scan_chan_idx]->center_freq);
2855 
2856 	hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
2857 	if (hwsim->tmp_chan->flags & (IEEE80211_CHAN_NO_IR |
2858 				      IEEE80211_CHAN_RADAR) ||
2859 	    !req->n_ssids) {
2860 		dwell = 120;
2861 	} else {
2862 		dwell = 30;
2863 		/* send probes */
2864 		for (i = 0; i < req->n_ssids; i++) {
2865 			struct sk_buff *probe;
2866 			struct ieee80211_mgmt *mgmt;
2867 
2868 			probe = ieee80211_probereq_get(hwsim->hw,
2869 						       hwsim->scan_addr,
2870 						       req->ssids[i].ssid,
2871 						       req->ssids[i].ssid_len,
2872 						       req->ie_len);
2873 			if (!probe)
2874 				continue;
2875 
2876 			mgmt = (struct ieee80211_mgmt *) probe->data;
2877 			memcpy(mgmt->da, req->bssid, ETH_ALEN);
2878 			memcpy(mgmt->bssid, req->bssid, ETH_ALEN);
2879 
2880 			if (req->ie_len)
2881 				skb_put_data(probe, req->ie, req->ie_len);
2882 
2883 			rcu_read_lock();
2884 			if (!ieee80211_tx_prepare_skb(hwsim->hw,
2885 						      hwsim->hw_scan_vif,
2886 						      probe,
2887 						      hwsim->tmp_chan->band,
2888 						      NULL)) {
2889 				rcu_read_unlock();
2890 				kfree_skb(probe);
2891 				continue;
2892 			}
2893 
2894 			local_bh_disable();
2895 			mac80211_hwsim_tx_frame(hwsim->hw, probe,
2896 						hwsim->tmp_chan);
2897 			rcu_read_unlock();
2898 			local_bh_enable();
2899 		}
2900 	}
2901 	ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
2902 				     msecs_to_jiffies(dwell));
2903 	hwsim->survey_data[hwsim->scan_chan_idx].channel = hwsim->tmp_chan;
2904 	hwsim->survey_data[hwsim->scan_chan_idx].start = jiffies;
2905 	hwsim->survey_data[hwsim->scan_chan_idx].end =
2906 		jiffies + msecs_to_jiffies(dwell);
2907 	hwsim->scan_chan_idx++;
2908 	mutex_unlock(&hwsim->mutex);
2909 }
2910 
mac80211_hwsim_hw_scan(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_scan_request * hw_req)2911 static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
2912 				  struct ieee80211_vif *vif,
2913 				  struct ieee80211_scan_request *hw_req)
2914 {
2915 	struct mac80211_hwsim_data *hwsim = hw->priv;
2916 	struct cfg80211_scan_request *req = &hw_req->req;
2917 
2918 	mutex_lock(&hwsim->mutex);
2919 	if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
2920 		mutex_unlock(&hwsim->mutex);
2921 		return -EBUSY;
2922 	}
2923 	hwsim->hw_scan_request = req;
2924 	hwsim->hw_scan_vif = vif;
2925 	hwsim->scan_chan_idx = 0;
2926 	if (req->flags & NL80211_SCAN_FLAG_RANDOM_ADDR)
2927 		get_random_mask_addr(hwsim->scan_addr,
2928 				     hw_req->req.mac_addr,
2929 				     hw_req->req.mac_addr_mask);
2930 	else
2931 		memcpy(hwsim->scan_addr, vif->addr, ETH_ALEN);
2932 	memset(hwsim->survey_data, 0, sizeof(hwsim->survey_data));
2933 	mutex_unlock(&hwsim->mutex);
2934 
2935 	mac80211_hwsim_config_mac_nl(hw, hwsim->scan_addr, true);
2936 	wiphy_dbg(hw->wiphy, "hwsim hw_scan request\n");
2937 
2938 	ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
2939 
2940 	return 0;
2941 }
2942 
mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw * hw,struct ieee80211_vif * vif)2943 static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
2944 					  struct ieee80211_vif *vif)
2945 {
2946 	struct mac80211_hwsim_data *hwsim = hw->priv;
2947 	struct cfg80211_scan_info info = {
2948 		.aborted = true,
2949 	};
2950 
2951 	wiphy_dbg(hw->wiphy, "hwsim cancel_hw_scan\n");
2952 
2953 	cancel_delayed_work_sync(&hwsim->hw_scan);
2954 
2955 	mutex_lock(&hwsim->mutex);
2956 	ieee80211_scan_completed(hwsim->hw, &info);
2957 	hwsim->tmp_chan = NULL;
2958 	hwsim->hw_scan_request = NULL;
2959 	hwsim->hw_scan_vif = NULL;
2960 	mutex_unlock(&hwsim->mutex);
2961 }
2962 
mac80211_hwsim_sw_scan(struct ieee80211_hw * hw,struct ieee80211_vif * vif,const u8 * mac_addr)2963 static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw,
2964 				   struct ieee80211_vif *vif,
2965 				   const u8 *mac_addr)
2966 {
2967 	struct mac80211_hwsim_data *hwsim = hw->priv;
2968 
2969 	mutex_lock(&hwsim->mutex);
2970 
2971 	if (hwsim->scanning) {
2972 		pr_debug("two hwsim sw_scans detected!\n");
2973 		goto out;
2974 	}
2975 
2976 	pr_debug("hwsim sw_scan request, prepping stuff\n");
2977 
2978 	memcpy(hwsim->scan_addr, mac_addr, ETH_ALEN);
2979 	mac80211_hwsim_config_mac_nl(hw, hwsim->scan_addr, true);
2980 	hwsim->scanning = true;
2981 	memset(hwsim->survey_data, 0, sizeof(hwsim->survey_data));
2982 
2983 out:
2984 	mutex_unlock(&hwsim->mutex);
2985 }
2986 
mac80211_hwsim_sw_scan_complete(struct ieee80211_hw * hw,struct ieee80211_vif * vif)2987 static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw,
2988 					    struct ieee80211_vif *vif)
2989 {
2990 	struct mac80211_hwsim_data *hwsim = hw->priv;
2991 
2992 	mutex_lock(&hwsim->mutex);
2993 
2994 	pr_debug("hwsim sw_scan_complete\n");
2995 	hwsim->scanning = false;
2996 	mac80211_hwsim_config_mac_nl(hw, hwsim->scan_addr, false);
2997 	eth_zero_addr(hwsim->scan_addr);
2998 
2999 	mutex_unlock(&hwsim->mutex);
3000 }
3001 
hw_roc_start(struct work_struct * work)3002 static void hw_roc_start(struct work_struct *work)
3003 {
3004 	struct mac80211_hwsim_data *hwsim =
3005 		container_of(work, struct mac80211_hwsim_data, roc_start.work);
3006 
3007 	mutex_lock(&hwsim->mutex);
3008 
3009 	wiphy_dbg(hwsim->hw->wiphy, "hwsim ROC begins\n");
3010 	hwsim->tmp_chan = hwsim->roc_chan;
3011 	ieee80211_ready_on_channel(hwsim->hw);
3012 
3013 	ieee80211_queue_delayed_work(hwsim->hw, &hwsim->roc_done,
3014 				     msecs_to_jiffies(hwsim->roc_duration));
3015 
3016 	mutex_unlock(&hwsim->mutex);
3017 }
3018 
hw_roc_done(struct work_struct * work)3019 static void hw_roc_done(struct work_struct *work)
3020 {
3021 	struct mac80211_hwsim_data *hwsim =
3022 		container_of(work, struct mac80211_hwsim_data, roc_done.work);
3023 
3024 	mutex_lock(&hwsim->mutex);
3025 	ieee80211_remain_on_channel_expired(hwsim->hw);
3026 	hwsim->tmp_chan = NULL;
3027 	mutex_unlock(&hwsim->mutex);
3028 
3029 	wiphy_dbg(hwsim->hw->wiphy, "hwsim ROC expired\n");
3030 }
3031 
mac80211_hwsim_roc(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_channel * chan,int duration,enum ieee80211_roc_type type)3032 static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
3033 			      struct ieee80211_vif *vif,
3034 			      struct ieee80211_channel *chan,
3035 			      int duration,
3036 			      enum ieee80211_roc_type type)
3037 {
3038 	struct mac80211_hwsim_data *hwsim = hw->priv;
3039 
3040 	mutex_lock(&hwsim->mutex);
3041 	if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
3042 		mutex_unlock(&hwsim->mutex);
3043 		return -EBUSY;
3044 	}
3045 
3046 	hwsim->roc_chan = chan;
3047 	hwsim->roc_duration = duration;
3048 	mutex_unlock(&hwsim->mutex);
3049 
3050 	wiphy_dbg(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
3051 		  chan->center_freq, duration);
3052 	ieee80211_queue_delayed_work(hw, &hwsim->roc_start, HZ/50);
3053 
3054 	return 0;
3055 }
3056 
mac80211_hwsim_croc(struct ieee80211_hw * hw,struct ieee80211_vif * vif)3057 static int mac80211_hwsim_croc(struct ieee80211_hw *hw,
3058 			       struct ieee80211_vif *vif)
3059 {
3060 	struct mac80211_hwsim_data *hwsim = hw->priv;
3061 
3062 	cancel_delayed_work_sync(&hwsim->roc_start);
3063 	cancel_delayed_work_sync(&hwsim->roc_done);
3064 
3065 	mutex_lock(&hwsim->mutex);
3066 	hwsim->tmp_chan = NULL;
3067 	mutex_unlock(&hwsim->mutex);
3068 
3069 	wiphy_dbg(hw->wiphy, "hwsim ROC canceled\n");
3070 
3071 	return 0;
3072 }
3073 
mac80211_hwsim_add_chanctx(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * ctx)3074 static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
3075 				      struct ieee80211_chanctx_conf *ctx)
3076 {
3077 	hwsim_set_chanctx_magic(ctx);
3078 	wiphy_dbg(hw->wiphy,
3079 		  "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
3080 		  ctx->def.chan->center_freq, ctx->def.width,
3081 		  ctx->def.center_freq1, ctx->def.center_freq2);
3082 	return 0;
3083 }
3084 
mac80211_hwsim_remove_chanctx(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * ctx)3085 static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
3086 					  struct ieee80211_chanctx_conf *ctx)
3087 {
3088 	wiphy_dbg(hw->wiphy,
3089 		  "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
3090 		  ctx->def.chan->center_freq, ctx->def.width,
3091 		  ctx->def.center_freq1, ctx->def.center_freq2);
3092 	hwsim_check_chanctx_magic(ctx);
3093 	hwsim_clear_chanctx_magic(ctx);
3094 }
3095 
mac80211_hwsim_change_chanctx(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * ctx,u32 changed)3096 static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
3097 					  struct ieee80211_chanctx_conf *ctx,
3098 					  u32 changed)
3099 {
3100 	hwsim_check_chanctx_magic(ctx);
3101 	wiphy_dbg(hw->wiphy,
3102 		  "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
3103 		  ctx->def.chan->center_freq, ctx->def.width,
3104 		  ctx->def.center_freq1, ctx->def.center_freq2);
3105 }
3106 
mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf,struct ieee80211_chanctx_conf * ctx)3107 static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
3108 					     struct ieee80211_vif *vif,
3109 					     struct ieee80211_bss_conf *link_conf,
3110 					     struct ieee80211_chanctx_conf *ctx)
3111 {
3112 	hwsim_check_magic(vif);
3113 	hwsim_check_chanctx_magic(ctx);
3114 
3115 	/* if we activate a link while already associated wake it up */
3116 	if (vif->type == NL80211_IFTYPE_STATION && vif->cfg.assoc) {
3117 		struct sk_buff *skb;
3118 
3119 		skb = ieee80211_nullfunc_get(hw, vif, link_conf->link_id, true);
3120 		if (skb) {
3121 			local_bh_disable();
3122 			mac80211_hwsim_tx_frame(hw, skb, ctx->def.chan);
3123 			local_bh_enable();
3124 		}
3125 	}
3126 
3127 	return 0;
3128 }
3129 
mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf,struct ieee80211_chanctx_conf * ctx)3130 static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
3131 						struct ieee80211_vif *vif,
3132 						struct ieee80211_bss_conf *link_conf,
3133 						struct ieee80211_chanctx_conf *ctx)
3134 {
3135 	hwsim_check_magic(vif);
3136 	hwsim_check_chanctx_magic(ctx);
3137 
3138 	/* if we deactivate a link while associated suspend it first */
3139 	if (vif->type == NL80211_IFTYPE_STATION && vif->cfg.assoc) {
3140 		struct sk_buff *skb;
3141 
3142 		skb = ieee80211_nullfunc_get(hw, vif, link_conf->link_id, true);
3143 		if (skb) {
3144 			struct ieee80211_hdr *hdr = (void *)skb->data;
3145 
3146 			hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
3147 
3148 			local_bh_disable();
3149 			mac80211_hwsim_tx_frame(hw, skb, ctx->def.chan);
3150 			local_bh_enable();
3151 		}
3152 	}
3153 }
3154 
3155 static const char mac80211_hwsim_gstrings_stats[][ETH_GSTRING_LEN] = {
3156 	"tx_pkts_nic",
3157 	"tx_bytes_nic",
3158 	"rx_pkts_nic",
3159 	"rx_bytes_nic",
3160 	"d_tx_dropped",
3161 	"d_tx_failed",
3162 	"d_ps_mode",
3163 	"d_group",
3164 };
3165 
3166 #define MAC80211_HWSIM_SSTATS_LEN ARRAY_SIZE(mac80211_hwsim_gstrings_stats)
3167 
mac80211_hwsim_get_et_strings(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u32 sset,u8 * data)3168 static void mac80211_hwsim_get_et_strings(struct ieee80211_hw *hw,
3169 					  struct ieee80211_vif *vif,
3170 					  u32 sset, u8 *data)
3171 {
3172 	if (sset == ETH_SS_STATS)
3173 		memcpy(data, mac80211_hwsim_gstrings_stats,
3174 		       sizeof(mac80211_hwsim_gstrings_stats));
3175 }
3176 
mac80211_hwsim_get_et_sset_count(struct ieee80211_hw * hw,struct ieee80211_vif * vif,int sset)3177 static int mac80211_hwsim_get_et_sset_count(struct ieee80211_hw *hw,
3178 					    struct ieee80211_vif *vif, int sset)
3179 {
3180 	if (sset == ETH_SS_STATS)
3181 		return MAC80211_HWSIM_SSTATS_LEN;
3182 	return 0;
3183 }
3184 
mac80211_hwsim_get_et_stats(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ethtool_stats * stats,u64 * data)3185 static void mac80211_hwsim_get_et_stats(struct ieee80211_hw *hw,
3186 					struct ieee80211_vif *vif,
3187 					struct ethtool_stats *stats, u64 *data)
3188 {
3189 	struct mac80211_hwsim_data *ar = hw->priv;
3190 	int i = 0;
3191 
3192 	data[i++] = ar->tx_pkts;
3193 	data[i++] = ar->tx_bytes;
3194 	data[i++] = ar->rx_pkts;
3195 	data[i++] = ar->rx_bytes;
3196 	data[i++] = ar->tx_dropped;
3197 	data[i++] = ar->tx_failed;
3198 	data[i++] = ar->ps;
3199 	data[i++] = ar->group;
3200 
3201 	WARN_ON(i != MAC80211_HWSIM_SSTATS_LEN);
3202 }
3203 
mac80211_hwsim_tx_last_beacon(struct ieee80211_hw * hw)3204 static int mac80211_hwsim_tx_last_beacon(struct ieee80211_hw *hw)
3205 {
3206 	return 1;
3207 }
3208 
mac80211_hwsim_set_rts_threshold(struct ieee80211_hw * hw,u32 value)3209 static int mac80211_hwsim_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
3210 {
3211 	return -EOPNOTSUPP;
3212 }
3213 
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])3214 static int mac80211_hwsim_change_vif_links(struct ieee80211_hw *hw,
3215 					   struct ieee80211_vif *vif,
3216 					   u16 old_links, u16 new_links,
3217 					   struct ieee80211_bss_conf *old[IEEE80211_MLD_MAX_NUM_LINKS])
3218 {
3219 	unsigned long rem = old_links & ~new_links;
3220 	unsigned long add = new_links & ~old_links;
3221 	int i;
3222 
3223 	if (!old_links)
3224 		rem |= BIT(0);
3225 	if (!new_links)
3226 		add |= BIT(0);
3227 
3228 	for_each_set_bit(i, &rem, IEEE80211_MLD_MAX_NUM_LINKS)
3229 		mac80211_hwsim_config_mac_nl(hw, old[i]->addr, false);
3230 
3231 	for_each_set_bit(i, &add, IEEE80211_MLD_MAX_NUM_LINKS) {
3232 		struct ieee80211_bss_conf *link_conf;
3233 
3234 		link_conf = link_conf_dereference_protected(vif, i);
3235 		if (WARN_ON(!link_conf))
3236 			continue;
3237 
3238 		mac80211_hwsim_config_mac_nl(hw, link_conf->addr, true);
3239 	}
3240 
3241 	return 0;
3242 }
3243 
mac80211_hwsim_change_sta_links(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,u16 old_links,u16 new_links)3244 static int mac80211_hwsim_change_sta_links(struct ieee80211_hw *hw,
3245 					   struct ieee80211_vif *vif,
3246 					   struct ieee80211_sta *sta,
3247 					   u16 old_links, u16 new_links)
3248 {
3249 	struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
3250 
3251 	hwsim_check_sta_magic(sta);
3252 
3253 	if (vif->type == NL80211_IFTYPE_STATION)
3254 		sp->active_links_rx = new_links;
3255 
3256 	return 0;
3257 }
3258 
mac80211_hwsim_send_pmsr_ftm_request_peer(struct sk_buff * msg,struct cfg80211_pmsr_ftm_request_peer * request)3259 static int mac80211_hwsim_send_pmsr_ftm_request_peer(struct sk_buff *msg,
3260 						     struct cfg80211_pmsr_ftm_request_peer *request)
3261 {
3262 	struct nlattr *ftm;
3263 
3264 	if (!request->requested)
3265 		return -EINVAL;
3266 
3267 	ftm = nla_nest_start(msg, NL80211_PMSR_TYPE_FTM);
3268 	if (!ftm)
3269 		return -ENOBUFS;
3270 
3271 	if (nla_put_u32(msg, NL80211_PMSR_FTM_REQ_ATTR_PREAMBLE, request->preamble))
3272 		return -ENOBUFS;
3273 
3274 	if (nla_put_u16(msg, NL80211_PMSR_FTM_REQ_ATTR_BURST_PERIOD, request->burst_period))
3275 		return -ENOBUFS;
3276 
3277 	if (request->asap && nla_put_flag(msg, NL80211_PMSR_FTM_REQ_ATTR_ASAP))
3278 		return -ENOBUFS;
3279 
3280 	if (request->request_lci && nla_put_flag(msg, NL80211_PMSR_FTM_REQ_ATTR_REQUEST_LCI))
3281 		return -ENOBUFS;
3282 
3283 	if (request->request_civicloc &&
3284 	    nla_put_flag(msg, NL80211_PMSR_FTM_REQ_ATTR_REQUEST_CIVICLOC))
3285 		return -ENOBUFS;
3286 
3287 	if (request->trigger_based && nla_put_flag(msg, NL80211_PMSR_FTM_REQ_ATTR_TRIGGER_BASED))
3288 		return -ENOBUFS;
3289 
3290 	if (request->non_trigger_based &&
3291 	    nla_put_flag(msg, NL80211_PMSR_FTM_REQ_ATTR_NON_TRIGGER_BASED))
3292 		return -ENOBUFS;
3293 
3294 	if (request->lmr_feedback && nla_put_flag(msg, NL80211_PMSR_FTM_REQ_ATTR_LMR_FEEDBACK))
3295 		return -ENOBUFS;
3296 
3297 	if (nla_put_u8(msg, NL80211_PMSR_FTM_REQ_ATTR_NUM_BURSTS_EXP, request->num_bursts_exp))
3298 		return -ENOBUFS;
3299 
3300 	if (nla_put_u8(msg, NL80211_PMSR_FTM_REQ_ATTR_BURST_DURATION, request->burst_duration))
3301 		return -ENOBUFS;
3302 
3303 	if (nla_put_u8(msg, NL80211_PMSR_FTM_REQ_ATTR_FTMS_PER_BURST, request->ftms_per_burst))
3304 		return -ENOBUFS;
3305 
3306 	if (nla_put_u8(msg, NL80211_PMSR_FTM_REQ_ATTR_NUM_FTMR_RETRIES, request->ftmr_retries))
3307 		return -ENOBUFS;
3308 
3309 	if (nla_put_u8(msg, NL80211_PMSR_FTM_REQ_ATTR_BURST_DURATION, request->burst_duration))
3310 		return -ENOBUFS;
3311 
3312 	if (nla_put_u8(msg, NL80211_PMSR_FTM_REQ_ATTR_BSS_COLOR, request->bss_color))
3313 		return -ENOBUFS;
3314 
3315 	nla_nest_end(msg, ftm);
3316 
3317 	return 0;
3318 }
3319 
mac80211_hwsim_send_pmsr_request_peer(struct sk_buff * msg,struct cfg80211_pmsr_request_peer * request)3320 static int mac80211_hwsim_send_pmsr_request_peer(struct sk_buff *msg,
3321 						 struct cfg80211_pmsr_request_peer *request)
3322 {
3323 	struct nlattr *peer, *chandef, *req, *data;
3324 	int err;
3325 
3326 	peer = nla_nest_start(msg, NL80211_PMSR_ATTR_PEERS);
3327 	if (!peer)
3328 		return -ENOBUFS;
3329 
3330 	if (nla_put(msg, NL80211_PMSR_PEER_ATTR_ADDR, ETH_ALEN,
3331 		    request->addr))
3332 		return -ENOBUFS;
3333 
3334 	chandef = nla_nest_start(msg, NL80211_PMSR_PEER_ATTR_CHAN);
3335 	if (!chandef)
3336 		return -ENOBUFS;
3337 
3338 	err = nl80211_send_chandef(msg, &request->chandef);
3339 	if (err)
3340 		return err;
3341 
3342 	nla_nest_end(msg, chandef);
3343 
3344 	req = nla_nest_start(msg, NL80211_PMSR_PEER_ATTR_REQ);
3345 	if (!req)
3346 		return -ENOBUFS;
3347 
3348 	if (request->report_ap_tsf && nla_put_flag(msg, NL80211_PMSR_REQ_ATTR_GET_AP_TSF))
3349 		return -ENOBUFS;
3350 
3351 	data = nla_nest_start(msg, NL80211_PMSR_REQ_ATTR_DATA);
3352 	if (!data)
3353 		return -ENOBUFS;
3354 
3355 	err = mac80211_hwsim_send_pmsr_ftm_request_peer(msg, &request->ftm);
3356 	if (err)
3357 		return err;
3358 
3359 	nla_nest_end(msg, data);
3360 	nla_nest_end(msg, req);
3361 	nla_nest_end(msg, peer);
3362 
3363 	return 0;
3364 }
3365 
mac80211_hwsim_send_pmsr_request(struct sk_buff * msg,struct cfg80211_pmsr_request * request)3366 static int mac80211_hwsim_send_pmsr_request(struct sk_buff *msg,
3367 					    struct cfg80211_pmsr_request *request)
3368 {
3369 	struct nlattr *pmsr;
3370 	int err;
3371 
3372 	pmsr = nla_nest_start(msg, NL80211_ATTR_PEER_MEASUREMENTS);
3373 	if (!pmsr)
3374 		return -ENOBUFS;
3375 
3376 	if (nla_put_u32(msg, NL80211_ATTR_TIMEOUT, request->timeout))
3377 		return -ENOBUFS;
3378 
3379 	if (!is_zero_ether_addr(request->mac_addr)) {
3380 		if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, request->mac_addr))
3381 			return -ENOBUFS;
3382 		if (nla_put(msg, NL80211_ATTR_MAC_MASK, ETH_ALEN, request->mac_addr_mask))
3383 			return -ENOBUFS;
3384 	}
3385 
3386 	for (int i = 0; i < request->n_peers; i++) {
3387 		err = mac80211_hwsim_send_pmsr_request_peer(msg, &request->peers[i]);
3388 		if (err)
3389 			return err;
3390 	}
3391 
3392 	nla_nest_end(msg, pmsr);
3393 
3394 	return 0;
3395 }
3396 
mac80211_hwsim_start_pmsr(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct cfg80211_pmsr_request * request)3397 static int mac80211_hwsim_start_pmsr(struct ieee80211_hw *hw,
3398 				     struct ieee80211_vif *vif,
3399 				     struct cfg80211_pmsr_request *request)
3400 {
3401 	struct mac80211_hwsim_data *data;
3402 	struct sk_buff *skb = NULL;
3403 	struct nlattr *pmsr;
3404 	void *msg_head;
3405 	u32 _portid;
3406 	int err = 0;
3407 
3408 	data = hw->priv;
3409 	_portid = READ_ONCE(data->wmediumd);
3410 	if (!_portid && !hwsim_virtio_enabled)
3411 		return -EOPNOTSUPP;
3412 
3413 	mutex_lock(&data->mutex);
3414 
3415 	if (data->pmsr_request) {
3416 		err = -EBUSY;
3417 		goto out_free;
3418 	}
3419 
3420 	skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
3421 
3422 	if (!skb) {
3423 		err = -ENOMEM;
3424 		goto out_free;
3425 	}
3426 
3427 	msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0, HWSIM_CMD_START_PMSR);
3428 
3429 	if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
3430 		    ETH_ALEN, data->addresses[1].addr)) {
3431 		err = -ENOMEM;
3432 		goto out_free;
3433 	}
3434 
3435 	pmsr = nla_nest_start(skb, HWSIM_ATTR_PMSR_REQUEST);
3436 	if (!pmsr) {
3437 		err = -ENOMEM;
3438 		goto out_free;
3439 	}
3440 
3441 	err = mac80211_hwsim_send_pmsr_request(skb, request);
3442 	if (err)
3443 		goto out_free;
3444 
3445 	nla_nest_end(skb, pmsr);
3446 
3447 	genlmsg_end(skb, msg_head);
3448 	if (hwsim_virtio_enabled)
3449 		hwsim_tx_virtio(data, skb);
3450 	else
3451 		hwsim_unicast_netgroup(data, skb, _portid);
3452 
3453 	data->pmsr_request = request;
3454 	data->pmsr_request_wdev = ieee80211_vif_to_wdev(vif);
3455 
3456 out_free:
3457 	if (err && skb)
3458 		nlmsg_free(skb);
3459 
3460 	mutex_unlock(&data->mutex);
3461 	return err;
3462 }
3463 
mac80211_hwsim_abort_pmsr(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct cfg80211_pmsr_request * request)3464 static void mac80211_hwsim_abort_pmsr(struct ieee80211_hw *hw,
3465 				      struct ieee80211_vif *vif,
3466 				      struct cfg80211_pmsr_request *request)
3467 {
3468 	struct mac80211_hwsim_data *data;
3469 	struct sk_buff *skb = NULL;
3470 	struct nlattr *pmsr;
3471 	void *msg_head;
3472 	u32 _portid;
3473 	int err = 0;
3474 
3475 	data = hw->priv;
3476 	_portid = READ_ONCE(data->wmediumd);
3477 	if (!_portid && !hwsim_virtio_enabled)
3478 		return;
3479 
3480 	mutex_lock(&data->mutex);
3481 
3482 	if (data->pmsr_request != request) {
3483 		err = -EINVAL;
3484 		goto out;
3485 	}
3486 
3487 	skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
3488 	if (!skb) {
3489 		err = -ENOMEM;
3490 		goto out;
3491 	}
3492 
3493 	msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0, HWSIM_CMD_ABORT_PMSR);
3494 
3495 	if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER, ETH_ALEN, data->addresses[1].addr))
3496 		goto out;
3497 
3498 	pmsr = nla_nest_start(skb, HWSIM_ATTR_PMSR_REQUEST);
3499 	if (!pmsr) {
3500 		err = -ENOMEM;
3501 		goto out;
3502 	}
3503 
3504 	err = mac80211_hwsim_send_pmsr_request(skb, request);
3505 	if (err)
3506 		goto out;
3507 
3508 	err = nla_nest_end(skb, pmsr);
3509 	if (err)
3510 		goto out;
3511 
3512 	genlmsg_end(skb, msg_head);
3513 	if (hwsim_virtio_enabled)
3514 		hwsim_tx_virtio(data, skb);
3515 	else
3516 		hwsim_unicast_netgroup(data, skb, _portid);
3517 
3518 out:
3519 	if (err && skb)
3520 		nlmsg_free(skb);
3521 
3522 	mutex_unlock(&data->mutex);
3523 }
3524 
mac80211_hwsim_parse_rate_info(struct nlattr * rateattr,struct rate_info * rate_info,struct genl_info * info)3525 static int mac80211_hwsim_parse_rate_info(struct nlattr *rateattr,
3526 					  struct rate_info *rate_info,
3527 					  struct genl_info *info)
3528 {
3529 	struct nlattr *tb[HWSIM_RATE_INFO_ATTR_MAX + 1];
3530 	int ret;
3531 
3532 	ret = nla_parse_nested(tb, HWSIM_RATE_INFO_ATTR_MAX,
3533 			       rateattr, hwsim_rate_info_policy, info->extack);
3534 	if (ret)
3535 		return ret;
3536 
3537 	if (tb[HWSIM_RATE_INFO_ATTR_FLAGS])
3538 		rate_info->flags = nla_get_u8(tb[HWSIM_RATE_INFO_ATTR_FLAGS]);
3539 
3540 	if (tb[HWSIM_RATE_INFO_ATTR_MCS])
3541 		rate_info->mcs = nla_get_u8(tb[HWSIM_RATE_INFO_ATTR_MCS]);
3542 
3543 	if (tb[HWSIM_RATE_INFO_ATTR_LEGACY])
3544 		rate_info->legacy = nla_get_u16(tb[HWSIM_RATE_INFO_ATTR_LEGACY]);
3545 
3546 	if (tb[HWSIM_RATE_INFO_ATTR_NSS])
3547 		rate_info->nss = nla_get_u8(tb[HWSIM_RATE_INFO_ATTR_NSS]);
3548 
3549 	if (tb[HWSIM_RATE_INFO_ATTR_BW])
3550 		rate_info->bw = nla_get_u8(tb[HWSIM_RATE_INFO_ATTR_BW]);
3551 
3552 	if (tb[HWSIM_RATE_INFO_ATTR_HE_GI])
3553 		rate_info->he_gi = nla_get_u8(tb[HWSIM_RATE_INFO_ATTR_HE_GI]);
3554 
3555 	if (tb[HWSIM_RATE_INFO_ATTR_HE_DCM])
3556 		rate_info->he_dcm = nla_get_u8(tb[HWSIM_RATE_INFO_ATTR_HE_DCM]);
3557 
3558 	if (tb[HWSIM_RATE_INFO_ATTR_HE_RU_ALLOC])
3559 		rate_info->he_ru_alloc =
3560 			nla_get_u8(tb[HWSIM_RATE_INFO_ATTR_HE_RU_ALLOC]);
3561 
3562 	if (tb[HWSIM_RATE_INFO_ATTR_N_BOUNDED_CH])
3563 		rate_info->n_bonded_ch = nla_get_u8(tb[HWSIM_RATE_INFO_ATTR_N_BOUNDED_CH]);
3564 
3565 	if (tb[HWSIM_RATE_INFO_ATTR_EHT_GI])
3566 		rate_info->eht_gi = nla_get_u8(tb[HWSIM_RATE_INFO_ATTR_EHT_GI]);
3567 
3568 	if (tb[HWSIM_RATE_INFO_ATTR_EHT_RU_ALLOC])
3569 		rate_info->eht_ru_alloc = nla_get_u8(tb[HWSIM_RATE_INFO_ATTR_EHT_RU_ALLOC]);
3570 
3571 	return 0;
3572 }
3573 
mac80211_hwsim_parse_ftm_result(struct nlattr * ftm,struct cfg80211_pmsr_ftm_result * result,struct genl_info * info)3574 static int mac80211_hwsim_parse_ftm_result(struct nlattr *ftm,
3575 					   struct cfg80211_pmsr_ftm_result *result,
3576 					   struct genl_info *info)
3577 {
3578 	struct nlattr *tb[NL80211_PMSR_FTM_RESP_ATTR_MAX + 1];
3579 	int ret;
3580 
3581 	ret = nla_parse_nested(tb, NL80211_PMSR_FTM_RESP_ATTR_MAX,
3582 			       ftm, hwsim_ftm_result_policy, info->extack);
3583 	if (ret)
3584 		return ret;
3585 
3586 	if (tb[NL80211_PMSR_FTM_RESP_ATTR_FAIL_REASON])
3587 		result->failure_reason = nla_get_u32(tb[NL80211_PMSR_FTM_RESP_ATTR_FAIL_REASON]);
3588 
3589 	if (tb[NL80211_PMSR_FTM_RESP_ATTR_BURST_INDEX])
3590 		result->burst_index = nla_get_u16(tb[NL80211_PMSR_FTM_RESP_ATTR_BURST_INDEX]);
3591 
3592 	if (tb[NL80211_PMSR_FTM_RESP_ATTR_NUM_FTMR_ATTEMPTS]) {
3593 		result->num_ftmr_attempts_valid = 1;
3594 		result->num_ftmr_attempts =
3595 			nla_get_u32(tb[NL80211_PMSR_FTM_RESP_ATTR_NUM_FTMR_ATTEMPTS]);
3596 	}
3597 
3598 	if (tb[NL80211_PMSR_FTM_RESP_ATTR_NUM_FTMR_SUCCESSES]) {
3599 		result->num_ftmr_successes_valid = 1;
3600 		result->num_ftmr_successes =
3601 			nla_get_u32(tb[NL80211_PMSR_FTM_RESP_ATTR_NUM_FTMR_SUCCESSES]);
3602 	}
3603 
3604 	if (tb[NL80211_PMSR_FTM_RESP_ATTR_BUSY_RETRY_TIME])
3605 		result->busy_retry_time =
3606 			nla_get_u8(tb[NL80211_PMSR_FTM_RESP_ATTR_BUSY_RETRY_TIME]);
3607 
3608 	if (tb[NL80211_PMSR_FTM_RESP_ATTR_NUM_BURSTS_EXP])
3609 		result->num_bursts_exp = nla_get_u8(tb[NL80211_PMSR_FTM_RESP_ATTR_NUM_BURSTS_EXP]);
3610 
3611 	if (tb[NL80211_PMSR_FTM_RESP_ATTR_BURST_DURATION])
3612 		result->burst_duration = nla_get_u8(tb[NL80211_PMSR_FTM_RESP_ATTR_BURST_DURATION]);
3613 
3614 	if (tb[NL80211_PMSR_FTM_RESP_ATTR_FTMS_PER_BURST])
3615 		result->ftms_per_burst = nla_get_u8(tb[NL80211_PMSR_FTM_RESP_ATTR_FTMS_PER_BURST]);
3616 
3617 	if (tb[NL80211_PMSR_FTM_RESP_ATTR_RSSI_AVG]) {
3618 		result->rssi_avg_valid = 1;
3619 		result->rssi_avg = nla_get_s32(tb[NL80211_PMSR_FTM_RESP_ATTR_RSSI_AVG]);
3620 	}
3621 	if (tb[NL80211_PMSR_FTM_RESP_ATTR_RSSI_SPREAD]) {
3622 		result->rssi_spread_valid = 1;
3623 		result->rssi_spread =
3624 			nla_get_s32(tb[NL80211_PMSR_FTM_RESP_ATTR_RSSI_SPREAD]);
3625 	}
3626 
3627 	if (tb[NL80211_PMSR_FTM_RESP_ATTR_TX_RATE]) {
3628 		result->tx_rate_valid = 1;
3629 		ret = mac80211_hwsim_parse_rate_info(tb[NL80211_PMSR_FTM_RESP_ATTR_TX_RATE],
3630 						     &result->tx_rate, info);
3631 		if (ret)
3632 			return ret;
3633 	}
3634 
3635 	if (tb[NL80211_PMSR_FTM_RESP_ATTR_RX_RATE]) {
3636 		result->rx_rate_valid = 1;
3637 		ret = mac80211_hwsim_parse_rate_info(tb[NL80211_PMSR_FTM_RESP_ATTR_RX_RATE],
3638 						     &result->rx_rate, info);
3639 		if (ret)
3640 			return ret;
3641 	}
3642 
3643 	if (tb[NL80211_PMSR_FTM_RESP_ATTR_RTT_AVG]) {
3644 		result->rtt_avg_valid = 1;
3645 		result->rtt_avg =
3646 			nla_get_u64(tb[NL80211_PMSR_FTM_RESP_ATTR_RTT_AVG]);
3647 	}
3648 	if (tb[NL80211_PMSR_FTM_RESP_ATTR_RTT_VARIANCE]) {
3649 		result->rtt_variance_valid = 1;
3650 		result->rtt_variance =
3651 			nla_get_u64(tb[NL80211_PMSR_FTM_RESP_ATTR_RTT_VARIANCE]);
3652 	}
3653 	if (tb[NL80211_PMSR_FTM_RESP_ATTR_RTT_SPREAD]) {
3654 		result->rtt_spread_valid = 1;
3655 		result->rtt_spread =
3656 			nla_get_u64(tb[NL80211_PMSR_FTM_RESP_ATTR_RTT_SPREAD]);
3657 	}
3658 	if (tb[NL80211_PMSR_FTM_RESP_ATTR_DIST_AVG]) {
3659 		result->dist_avg_valid = 1;
3660 		result->dist_avg =
3661 			nla_get_u64(tb[NL80211_PMSR_FTM_RESP_ATTR_DIST_AVG]);
3662 	}
3663 	if (tb[NL80211_PMSR_FTM_RESP_ATTR_DIST_VARIANCE]) {
3664 		result->dist_variance_valid = 1;
3665 		result->dist_variance =
3666 			nla_get_u64(tb[NL80211_PMSR_FTM_RESP_ATTR_DIST_VARIANCE]);
3667 	}
3668 	if (tb[NL80211_PMSR_FTM_RESP_ATTR_DIST_SPREAD]) {
3669 		result->dist_spread_valid = 1;
3670 		result->dist_spread =
3671 			nla_get_u64(tb[NL80211_PMSR_FTM_RESP_ATTR_DIST_SPREAD]);
3672 	}
3673 
3674 	if (tb[NL80211_PMSR_FTM_RESP_ATTR_LCI]) {
3675 		result->lci = nla_data(tb[NL80211_PMSR_FTM_RESP_ATTR_LCI]);
3676 		result->lci_len = nla_len(tb[NL80211_PMSR_FTM_RESP_ATTR_LCI]);
3677 	}
3678 
3679 	if (tb[NL80211_PMSR_FTM_RESP_ATTR_CIVICLOC]) {
3680 		result->civicloc = nla_data(tb[NL80211_PMSR_FTM_RESP_ATTR_CIVICLOC]);
3681 		result->civicloc_len = nla_len(tb[NL80211_PMSR_FTM_RESP_ATTR_CIVICLOC]);
3682 	}
3683 
3684 	return 0;
3685 }
3686 
mac80211_hwsim_parse_pmsr_resp(struct nlattr * resp,struct cfg80211_pmsr_result * result,struct genl_info * info)3687 static int mac80211_hwsim_parse_pmsr_resp(struct nlattr *resp,
3688 					  struct cfg80211_pmsr_result *result,
3689 					  struct genl_info *info)
3690 {
3691 	struct nlattr *tb[NL80211_PMSR_RESP_ATTR_MAX + 1];
3692 	struct nlattr *pmsr;
3693 	int rem;
3694 	int ret;
3695 
3696 	ret = nla_parse_nested(tb, NL80211_PMSR_RESP_ATTR_MAX, resp, hwsim_pmsr_resp_policy,
3697 			       info->extack);
3698 	if (ret)
3699 		return ret;
3700 
3701 	if (tb[NL80211_PMSR_RESP_ATTR_STATUS])
3702 		result->status = nla_get_u32(tb[NL80211_PMSR_RESP_ATTR_STATUS]);
3703 
3704 	if (tb[NL80211_PMSR_RESP_ATTR_HOST_TIME])
3705 		result->host_time = nla_get_u64(tb[NL80211_PMSR_RESP_ATTR_HOST_TIME]);
3706 
3707 	if (tb[NL80211_PMSR_RESP_ATTR_AP_TSF]) {
3708 		result->ap_tsf_valid = 1;
3709 		result->ap_tsf = nla_get_u64(tb[NL80211_PMSR_RESP_ATTR_AP_TSF]);
3710 	}
3711 
3712 	result->final = !!tb[NL80211_PMSR_RESP_ATTR_FINAL];
3713 
3714 	if (!tb[NL80211_PMSR_RESP_ATTR_DATA])
3715 		return 0;
3716 
3717 	nla_for_each_nested(pmsr, tb[NL80211_PMSR_RESP_ATTR_DATA], rem) {
3718 		switch (nla_type(pmsr)) {
3719 		case NL80211_PMSR_TYPE_FTM:
3720 			result->type = NL80211_PMSR_TYPE_FTM;
3721 			ret = mac80211_hwsim_parse_ftm_result(pmsr, &result->ftm, info);
3722 			if (ret)
3723 				return ret;
3724 			break;
3725 		default:
3726 			NL_SET_ERR_MSG_ATTR(info->extack, pmsr, "Unknown pmsr resp type");
3727 			return -EINVAL;
3728 		}
3729 	}
3730 
3731 	return 0;
3732 }
3733 
mac80211_hwsim_parse_pmsr_result(struct nlattr * peer,struct cfg80211_pmsr_result * result,struct genl_info * info)3734 static int mac80211_hwsim_parse_pmsr_result(struct nlattr *peer,
3735 					    struct cfg80211_pmsr_result *result,
3736 					    struct genl_info *info)
3737 {
3738 	struct nlattr *tb[NL80211_PMSR_PEER_ATTR_MAX + 1];
3739 	int ret;
3740 
3741 	if (!peer)
3742 		return -EINVAL;
3743 
3744 	ret = nla_parse_nested(tb, NL80211_PMSR_PEER_ATTR_MAX, peer,
3745 			       hwsim_pmsr_peer_result_policy, info->extack);
3746 	if (ret)
3747 		return ret;
3748 
3749 	if (tb[NL80211_PMSR_PEER_ATTR_ADDR])
3750 		memcpy(result->addr, nla_data(tb[NL80211_PMSR_PEER_ATTR_ADDR]),
3751 		       ETH_ALEN);
3752 
3753 	if (tb[NL80211_PMSR_PEER_ATTR_RESP]) {
3754 		ret = mac80211_hwsim_parse_pmsr_resp(tb[NL80211_PMSR_PEER_ATTR_RESP], result, info);
3755 		if (ret)
3756 			return ret;
3757 	}
3758 
3759 	return 0;
3760 };
3761 
hwsim_pmsr_report_nl(struct sk_buff * msg,struct genl_info * info)3762 static int hwsim_pmsr_report_nl(struct sk_buff *msg, struct genl_info *info)
3763 {
3764 	struct mac80211_hwsim_data *data;
3765 	struct nlattr *peers, *peer;
3766 	struct nlattr *reqattr;
3767 	const u8 *src;
3768 	int err;
3769 	int rem;
3770 
3771 	if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER])
3772 		return -EINVAL;
3773 
3774 	src = nla_data(info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
3775 	data = get_hwsim_data_ref_from_addr(src);
3776 	if (!data)
3777 		return -EINVAL;
3778 
3779 	mutex_lock(&data->mutex);
3780 	if (!data->pmsr_request) {
3781 		err = -EINVAL;
3782 		goto out;
3783 	}
3784 
3785 	reqattr = info->attrs[HWSIM_ATTR_PMSR_RESULT];
3786 	if (!reqattr) {
3787 		err = -EINVAL;
3788 		goto out;
3789 	}
3790 
3791 	peers = nla_find_nested(reqattr, NL80211_PMSR_ATTR_PEERS);
3792 	if (!peers) {
3793 		err = -EINVAL;
3794 		goto out;
3795 	}
3796 
3797 	nla_for_each_nested(peer, peers, rem) {
3798 		struct cfg80211_pmsr_result result = {};
3799 
3800 		err = mac80211_hwsim_parse_pmsr_result(peer, &result, info);
3801 		if (err)
3802 			goto out;
3803 
3804 		cfg80211_pmsr_report(data->pmsr_request_wdev,
3805 				     data->pmsr_request, &result, GFP_KERNEL);
3806 	}
3807 
3808 	cfg80211_pmsr_complete(data->pmsr_request_wdev, data->pmsr_request, GFP_KERNEL);
3809 
3810 	err = 0;
3811 out:
3812 	data->pmsr_request = NULL;
3813 	data->pmsr_request_wdev = NULL;
3814 
3815 	mutex_unlock(&data->mutex);
3816 	return err;
3817 }
3818 
3819 #define HWSIM_COMMON_OPS					\
3820 	.tx = mac80211_hwsim_tx,				\
3821 	.wake_tx_queue = ieee80211_handle_wake_tx_queue,	\
3822 	.start = mac80211_hwsim_start,				\
3823 	.stop = mac80211_hwsim_stop,				\
3824 	.add_interface = mac80211_hwsim_add_interface,		\
3825 	.change_interface = mac80211_hwsim_change_interface,	\
3826 	.remove_interface = mac80211_hwsim_remove_interface,	\
3827 	.config = mac80211_hwsim_config,			\
3828 	.configure_filter = mac80211_hwsim_configure_filter,	\
3829 	.vif_cfg_changed = mac80211_hwsim_vif_info_changed,	\
3830 	.link_info_changed = mac80211_hwsim_link_info_changed,  \
3831 	.tx_last_beacon = mac80211_hwsim_tx_last_beacon,	\
3832 	.sta_notify = mac80211_hwsim_sta_notify,		\
3833 	.sta_rc_update = mac80211_hwsim_sta_rc_update,		\
3834 	.conf_tx = mac80211_hwsim_conf_tx,			\
3835 	.get_survey = mac80211_hwsim_get_survey,		\
3836 	CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)	\
3837 	.ampdu_action = mac80211_hwsim_ampdu_action,		\
3838 	.flush = mac80211_hwsim_flush,				\
3839 	.get_et_sset_count = mac80211_hwsim_get_et_sset_count,	\
3840 	.get_et_stats = mac80211_hwsim_get_et_stats,		\
3841 	.get_et_strings = mac80211_hwsim_get_et_strings,	\
3842 	.start_pmsr = mac80211_hwsim_start_pmsr,		\
3843 	.abort_pmsr = mac80211_hwsim_abort_pmsr,
3844 
3845 #define HWSIM_NON_MLO_OPS					\
3846 	.sta_add = mac80211_hwsim_sta_add,			\
3847 	.sta_remove = mac80211_hwsim_sta_remove,		\
3848 	.set_tim = mac80211_hwsim_set_tim,			\
3849 	.get_tsf = mac80211_hwsim_get_tsf,			\
3850 	.set_tsf = mac80211_hwsim_set_tsf,
3851 
3852 static const struct ieee80211_ops mac80211_hwsim_ops = {
3853 	HWSIM_COMMON_OPS
3854 	HWSIM_NON_MLO_OPS
3855 	.sw_scan_start = mac80211_hwsim_sw_scan,
3856 	.sw_scan_complete = mac80211_hwsim_sw_scan_complete,
3857 };
3858 
3859 #define HWSIM_CHANCTX_OPS					\
3860 	.hw_scan = mac80211_hwsim_hw_scan,			\
3861 	.cancel_hw_scan = mac80211_hwsim_cancel_hw_scan,	\
3862 	.remain_on_channel = mac80211_hwsim_roc,		\
3863 	.cancel_remain_on_channel = mac80211_hwsim_croc,	\
3864 	.add_chanctx = mac80211_hwsim_add_chanctx,		\
3865 	.remove_chanctx = mac80211_hwsim_remove_chanctx,	\
3866 	.change_chanctx = mac80211_hwsim_change_chanctx,	\
3867 	.assign_vif_chanctx = mac80211_hwsim_assign_vif_chanctx,\
3868 	.unassign_vif_chanctx = mac80211_hwsim_unassign_vif_chanctx,
3869 
3870 static const struct ieee80211_ops mac80211_hwsim_mchan_ops = {
3871 	HWSIM_COMMON_OPS
3872 	HWSIM_NON_MLO_OPS
3873 	HWSIM_CHANCTX_OPS
3874 };
3875 
3876 static const struct ieee80211_ops mac80211_hwsim_mlo_ops = {
3877 	HWSIM_COMMON_OPS
3878 	HWSIM_CHANCTX_OPS
3879 	.set_rts_threshold = mac80211_hwsim_set_rts_threshold,
3880 	.change_vif_links = mac80211_hwsim_change_vif_links,
3881 	.change_sta_links = mac80211_hwsim_change_sta_links,
3882 	.sta_state = mac80211_hwsim_sta_state,
3883 };
3884 
3885 struct hwsim_new_radio_params {
3886 	unsigned int channels;
3887 	const char *reg_alpha2;
3888 	const struct ieee80211_regdomain *regd;
3889 	bool reg_strict;
3890 	bool p2p_device;
3891 	bool use_chanctx;
3892 	bool destroy_on_close;
3893 	const char *hwname;
3894 	bool no_vif;
3895 	const u8 *perm_addr;
3896 	u32 iftypes;
3897 	u32 *ciphers;
3898 	u8 n_ciphers;
3899 	bool mlo;
3900 	const struct cfg80211_pmsr_capabilities *pmsr_capa;
3901 };
3902 
hwsim_mcast_config_msg(struct sk_buff * mcast_skb,struct genl_info * info)3903 static void hwsim_mcast_config_msg(struct sk_buff *mcast_skb,
3904 				   struct genl_info *info)
3905 {
3906 	if (info)
3907 		genl_notify(&hwsim_genl_family, mcast_skb, info,
3908 			    HWSIM_MCGRP_CONFIG, GFP_KERNEL);
3909 	else
3910 		genlmsg_multicast(&hwsim_genl_family, mcast_skb, 0,
3911 				  HWSIM_MCGRP_CONFIG, GFP_KERNEL);
3912 }
3913 
append_radio_msg(struct sk_buff * skb,int id,struct hwsim_new_radio_params * param)3914 static int append_radio_msg(struct sk_buff *skb, int id,
3915 			    struct hwsim_new_radio_params *param)
3916 {
3917 	int ret;
3918 
3919 	ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
3920 	if (ret < 0)
3921 		return ret;
3922 
3923 	if (param->channels) {
3924 		ret = nla_put_u32(skb, HWSIM_ATTR_CHANNELS, param->channels);
3925 		if (ret < 0)
3926 			return ret;
3927 	}
3928 
3929 	if (param->reg_alpha2) {
3930 		ret = nla_put(skb, HWSIM_ATTR_REG_HINT_ALPHA2, 2,
3931 			      param->reg_alpha2);
3932 		if (ret < 0)
3933 			return ret;
3934 	}
3935 
3936 	if (param->regd) {
3937 		int i;
3938 
3939 		for (i = 0; i < ARRAY_SIZE(hwsim_world_regdom_custom); i++) {
3940 			if (hwsim_world_regdom_custom[i] != param->regd)
3941 				continue;
3942 
3943 			ret = nla_put_u32(skb, HWSIM_ATTR_REG_CUSTOM_REG, i);
3944 			if (ret < 0)
3945 				return ret;
3946 			break;
3947 		}
3948 	}
3949 
3950 	if (param->reg_strict) {
3951 		ret = nla_put_flag(skb, HWSIM_ATTR_REG_STRICT_REG);
3952 		if (ret < 0)
3953 			return ret;
3954 	}
3955 
3956 	if (param->p2p_device) {
3957 		ret = nla_put_flag(skb, HWSIM_ATTR_SUPPORT_P2P_DEVICE);
3958 		if (ret < 0)
3959 			return ret;
3960 	}
3961 
3962 	if (param->use_chanctx) {
3963 		ret = nla_put_flag(skb, HWSIM_ATTR_USE_CHANCTX);
3964 		if (ret < 0)
3965 			return ret;
3966 	}
3967 
3968 	if (param->hwname) {
3969 		ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME,
3970 			      strlen(param->hwname), param->hwname);
3971 		if (ret < 0)
3972 			return ret;
3973 	}
3974 
3975 	return 0;
3976 }
3977 
hwsim_mcast_new_radio(int id,struct genl_info * info,struct hwsim_new_radio_params * param)3978 static void hwsim_mcast_new_radio(int id, struct genl_info *info,
3979 				  struct hwsim_new_radio_params *param)
3980 {
3981 	struct sk_buff *mcast_skb;
3982 	void *data;
3983 
3984 	mcast_skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
3985 	if (!mcast_skb)
3986 		return;
3987 
3988 	data = genlmsg_put(mcast_skb, 0, 0, &hwsim_genl_family, 0,
3989 			   HWSIM_CMD_NEW_RADIO);
3990 	if (!data)
3991 		goto out_err;
3992 
3993 	if (append_radio_msg(mcast_skb, id, param) < 0)
3994 		goto out_err;
3995 
3996 	genlmsg_end(mcast_skb, data);
3997 
3998 	hwsim_mcast_config_msg(mcast_skb, info);
3999 	return;
4000 
4001 out_err:
4002 	nlmsg_free(mcast_skb);
4003 }
4004 
4005 static const struct ieee80211_sband_iftype_data sband_capa_2ghz[] = {
4006 	{
4007 		.types_mask = BIT(NL80211_IFTYPE_STATION),
4008 		.he_cap = {
4009 			.has_he = true,
4010 			.he_cap_elem = {
4011 				.mac_cap_info[0] =
4012 					IEEE80211_HE_MAC_CAP0_HTC_HE,
4013 				.mac_cap_info[1] =
4014 					IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US |
4015 					IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
4016 				.mac_cap_info[2] =
4017 					IEEE80211_HE_MAC_CAP2_BSR |
4018 					IEEE80211_HE_MAC_CAP2_MU_CASCADING |
4019 					IEEE80211_HE_MAC_CAP2_ACK_EN,
4020 				.mac_cap_info[3] =
4021 					IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
4022 					IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3,
4023 				.mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU,
4024 				.phy_cap_info[1] =
4025 					IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
4026 					IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
4027 					IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
4028 					IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
4029 				.phy_cap_info[2] =
4030 					IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US |
4031 					IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ |
4032 					IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ |
4033 					IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO |
4034 					IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO,
4035 
4036 				/* Leave all the other PHY capability bytes
4037 				 * unset, as DCM, beam forming, RU and PPE
4038 				 * threshold information are not supported
4039 				 */
4040 			},
4041 			.he_mcs_nss_supp = {
4042 				.rx_mcs_80 = cpu_to_le16(0xfffa),
4043 				.tx_mcs_80 = cpu_to_le16(0xfffa),
4044 				.rx_mcs_160 = cpu_to_le16(0xffff),
4045 				.tx_mcs_160 = cpu_to_le16(0xffff),
4046 				.rx_mcs_80p80 = cpu_to_le16(0xffff),
4047 				.tx_mcs_80p80 = cpu_to_le16(0xffff),
4048 			},
4049 		},
4050 		.eht_cap = {
4051 			.has_eht = true,
4052 			.eht_cap_elem = {
4053 				.mac_cap_info[0] =
4054 					IEEE80211_EHT_MAC_CAP0_EPCS_PRIO_ACCESS |
4055 					IEEE80211_EHT_MAC_CAP0_OM_CONTROL |
4056 					IEEE80211_EHT_MAC_CAP0_TRIG_TXOP_SHARING_MODE1,
4057 				.phy_cap_info[0] =
4058 					IEEE80211_EHT_PHY_CAP0_242_TONE_RU_GT20MHZ |
4059 					IEEE80211_EHT_PHY_CAP0_NDP_4_EHT_LFT_32_GI |
4060 					IEEE80211_EHT_PHY_CAP0_PARTIAL_BW_UL_MU_MIMO |
4061 					IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER |
4062 					IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE,
4063 				.phy_cap_info[3] =
4064 					IEEE80211_EHT_PHY_CAP3_NG_16_SU_FEEDBACK |
4065 					IEEE80211_EHT_PHY_CAP3_NG_16_MU_FEEDBACK |
4066 					IEEE80211_EHT_PHY_CAP3_CODEBOOK_4_2_SU_FDBK |
4067 					IEEE80211_EHT_PHY_CAP3_CODEBOOK_7_5_MU_FDBK |
4068 					IEEE80211_EHT_PHY_CAP3_TRIG_SU_BF_FDBK |
4069 					IEEE80211_EHT_PHY_CAP3_TRIG_MU_BF_PART_BW_FDBK |
4070 					IEEE80211_EHT_PHY_CAP3_TRIG_CQI_FDBK,
4071 				.phy_cap_info[4] =
4072 					IEEE80211_EHT_PHY_CAP4_PART_BW_DL_MU_MIMO |
4073 					IEEE80211_EHT_PHY_CAP4_PSR_SR_SUPP |
4074 					IEEE80211_EHT_PHY_CAP4_POWER_BOOST_FACT_SUPP |
4075 					IEEE80211_EHT_PHY_CAP4_EHT_MU_PPDU_4_EHT_LTF_08_GI |
4076 					IEEE80211_EHT_PHY_CAP4_MAX_NC_MASK,
4077 				.phy_cap_info[5] =
4078 					IEEE80211_EHT_PHY_CAP5_NON_TRIG_CQI_FEEDBACK |
4079 					IEEE80211_EHT_PHY_CAP5_TX_LESS_242_TONE_RU_SUPP |
4080 					IEEE80211_EHT_PHY_CAP5_RX_LESS_242_TONE_RU_SUPP |
4081 					IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT |
4082 					IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK |
4083 					IEEE80211_EHT_PHY_CAP5_MAX_NUM_SUPP_EHT_LTF_MASK,
4084 				.phy_cap_info[6] =
4085 					IEEE80211_EHT_PHY_CAP6_MAX_NUM_SUPP_EHT_LTF_MASK |
4086 					IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_MASK,
4087 				.phy_cap_info[7] =
4088 					IEEE80211_EHT_PHY_CAP7_20MHZ_STA_RX_NDP_WIDER_BW,
4089 			},
4090 
4091 			/* For all MCS and bandwidth, set 8 NSS for both Tx and
4092 			 * Rx
4093 			 */
4094 			.eht_mcs_nss_supp = {
4095 				/*
4096 				 * Since B0, B1, B2 and B3 are not set in
4097 				 * the supported channel width set field in the
4098 				 * HE PHY capabilities information field the
4099 				 * device is a 20MHz only device on 2.4GHz band.
4100 				 */
4101 				.only_20mhz = {
4102 					.rx_tx_mcs7_max_nss = 0x88,
4103 					.rx_tx_mcs9_max_nss = 0x88,
4104 					.rx_tx_mcs11_max_nss = 0x88,
4105 					.rx_tx_mcs13_max_nss = 0x88,
4106 				},
4107 			},
4108 			/* PPE threshold information is not supported */
4109 		},
4110 	},
4111 	{
4112 		.types_mask = BIT(NL80211_IFTYPE_AP),
4113 		.he_cap = {
4114 			.has_he = true,
4115 			.he_cap_elem = {
4116 				.mac_cap_info[0] =
4117 					IEEE80211_HE_MAC_CAP0_HTC_HE,
4118 				.mac_cap_info[1] =
4119 					IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US |
4120 					IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
4121 				.mac_cap_info[2] =
4122 					IEEE80211_HE_MAC_CAP2_BSR |
4123 					IEEE80211_HE_MAC_CAP2_MU_CASCADING |
4124 					IEEE80211_HE_MAC_CAP2_ACK_EN,
4125 				.mac_cap_info[3] =
4126 					IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
4127 					IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3,
4128 				.mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU,
4129 				.phy_cap_info[1] =
4130 					IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
4131 					IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
4132 					IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
4133 					IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
4134 				.phy_cap_info[2] =
4135 					IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US |
4136 					IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ |
4137 					IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ |
4138 					IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO |
4139 					IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO,
4140 
4141 				/* Leave all the other PHY capability bytes
4142 				 * unset, as DCM, beam forming, RU and PPE
4143 				 * threshold information are not supported
4144 				 */
4145 			},
4146 			.he_mcs_nss_supp = {
4147 				.rx_mcs_80 = cpu_to_le16(0xfffa),
4148 				.tx_mcs_80 = cpu_to_le16(0xfffa),
4149 				.rx_mcs_160 = cpu_to_le16(0xffff),
4150 				.tx_mcs_160 = cpu_to_le16(0xffff),
4151 				.rx_mcs_80p80 = cpu_to_le16(0xffff),
4152 				.tx_mcs_80p80 = cpu_to_le16(0xffff),
4153 			},
4154 		},
4155 		.eht_cap = {
4156 			.has_eht = true,
4157 			.eht_cap_elem = {
4158 				.mac_cap_info[0] =
4159 					IEEE80211_EHT_MAC_CAP0_EPCS_PRIO_ACCESS |
4160 					IEEE80211_EHT_MAC_CAP0_OM_CONTROL |
4161 					IEEE80211_EHT_MAC_CAP0_TRIG_TXOP_SHARING_MODE1,
4162 				.phy_cap_info[0] =
4163 					IEEE80211_EHT_PHY_CAP0_242_TONE_RU_GT20MHZ |
4164 					IEEE80211_EHT_PHY_CAP0_NDP_4_EHT_LFT_32_GI |
4165 					IEEE80211_EHT_PHY_CAP0_PARTIAL_BW_UL_MU_MIMO |
4166 					IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER |
4167 					IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE,
4168 				.phy_cap_info[3] =
4169 					IEEE80211_EHT_PHY_CAP3_NG_16_SU_FEEDBACK |
4170 					IEEE80211_EHT_PHY_CAP3_NG_16_MU_FEEDBACK |
4171 					IEEE80211_EHT_PHY_CAP3_CODEBOOK_4_2_SU_FDBK |
4172 					IEEE80211_EHT_PHY_CAP3_CODEBOOK_7_5_MU_FDBK |
4173 					IEEE80211_EHT_PHY_CAP3_TRIG_SU_BF_FDBK |
4174 					IEEE80211_EHT_PHY_CAP3_TRIG_MU_BF_PART_BW_FDBK |
4175 					IEEE80211_EHT_PHY_CAP3_TRIG_CQI_FDBK,
4176 				.phy_cap_info[4] =
4177 					IEEE80211_EHT_PHY_CAP4_PART_BW_DL_MU_MIMO |
4178 					IEEE80211_EHT_PHY_CAP4_PSR_SR_SUPP |
4179 					IEEE80211_EHT_PHY_CAP4_POWER_BOOST_FACT_SUPP |
4180 					IEEE80211_EHT_PHY_CAP4_EHT_MU_PPDU_4_EHT_LTF_08_GI |
4181 					IEEE80211_EHT_PHY_CAP4_MAX_NC_MASK,
4182 				.phy_cap_info[5] =
4183 					IEEE80211_EHT_PHY_CAP5_NON_TRIG_CQI_FEEDBACK |
4184 					IEEE80211_EHT_PHY_CAP5_TX_LESS_242_TONE_RU_SUPP |
4185 					IEEE80211_EHT_PHY_CAP5_RX_LESS_242_TONE_RU_SUPP |
4186 					IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT |
4187 					IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK |
4188 					IEEE80211_EHT_PHY_CAP5_MAX_NUM_SUPP_EHT_LTF_MASK,
4189 				.phy_cap_info[6] =
4190 					IEEE80211_EHT_PHY_CAP6_MAX_NUM_SUPP_EHT_LTF_MASK |
4191 					IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_MASK,
4192 				.phy_cap_info[7] =
4193 					IEEE80211_EHT_PHY_CAP7_20MHZ_STA_RX_NDP_WIDER_BW,
4194 			},
4195 
4196 			/* For all MCS and bandwidth, set 8 NSS for both Tx and
4197 			 * Rx
4198 			 */
4199 			.eht_mcs_nss_supp = {
4200 				/*
4201 				 * Since B0, B1, B2 and B3 are not set in
4202 				 * the supported channel width set field in the
4203 				 * HE PHY capabilities information field the
4204 				 * device is a 20MHz only device on 2.4GHz band.
4205 				 */
4206 				.only_20mhz = {
4207 					.rx_tx_mcs7_max_nss = 0x88,
4208 					.rx_tx_mcs9_max_nss = 0x88,
4209 					.rx_tx_mcs11_max_nss = 0x88,
4210 					.rx_tx_mcs13_max_nss = 0x88,
4211 				},
4212 			},
4213 			/* PPE threshold information is not supported */
4214 		},
4215 	},
4216 #ifdef CONFIG_MAC80211_MESH
4217 	{
4218 		.types_mask = BIT(NL80211_IFTYPE_MESH_POINT),
4219 		.he_cap = {
4220 			.has_he = true,
4221 			.he_cap_elem = {
4222 				.mac_cap_info[0] =
4223 					IEEE80211_HE_MAC_CAP0_HTC_HE,
4224 				.mac_cap_info[1] =
4225 					IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
4226 				.mac_cap_info[2] =
4227 					IEEE80211_HE_MAC_CAP2_ACK_EN,
4228 				.mac_cap_info[3] =
4229 					IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
4230 					IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3,
4231 				.mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU,
4232 				.phy_cap_info[1] =
4233 					IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
4234 					IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
4235 					IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
4236 					IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
4237 				.phy_cap_info[2] = 0,
4238 
4239 				/* Leave all the other PHY capability bytes
4240 				 * unset, as DCM, beam forming, RU and PPE
4241 				 * threshold information are not supported
4242 				 */
4243 			},
4244 			.he_mcs_nss_supp = {
4245 				.rx_mcs_80 = cpu_to_le16(0xfffa),
4246 				.tx_mcs_80 = cpu_to_le16(0xfffa),
4247 				.rx_mcs_160 = cpu_to_le16(0xffff),
4248 				.tx_mcs_160 = cpu_to_le16(0xffff),
4249 				.rx_mcs_80p80 = cpu_to_le16(0xffff),
4250 				.tx_mcs_80p80 = cpu_to_le16(0xffff),
4251 			},
4252 		},
4253 	},
4254 #endif
4255 };
4256 
4257 static const struct ieee80211_sband_iftype_data sband_capa_5ghz[] = {
4258 	{
4259 		/* TODO: should we support other types, e.g., P2P? */
4260 		.types_mask = BIT(NL80211_IFTYPE_STATION),
4261 		.he_cap = {
4262 			.has_he = true,
4263 			.he_cap_elem = {
4264 				.mac_cap_info[0] =
4265 					IEEE80211_HE_MAC_CAP0_HTC_HE,
4266 				.mac_cap_info[1] =
4267 					IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US |
4268 					IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
4269 				.mac_cap_info[2] =
4270 					IEEE80211_HE_MAC_CAP2_BSR |
4271 					IEEE80211_HE_MAC_CAP2_MU_CASCADING |
4272 					IEEE80211_HE_MAC_CAP2_ACK_EN,
4273 				.mac_cap_info[3] =
4274 					IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
4275 					IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3,
4276 				.mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU,
4277 				.phy_cap_info[0] =
4278 					IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G |
4279 					IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G |
4280 					IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
4281 				.phy_cap_info[1] =
4282 					IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
4283 					IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
4284 					IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
4285 					IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
4286 				.phy_cap_info[2] =
4287 					IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US |
4288 					IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ |
4289 					IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ |
4290 					IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO |
4291 					IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO,
4292 
4293 				/* Leave all the other PHY capability bytes
4294 				 * unset, as DCM, beam forming, RU and PPE
4295 				 * threshold information are not supported
4296 				 */
4297 			},
4298 			.he_mcs_nss_supp = {
4299 				.rx_mcs_80 = cpu_to_le16(0xfffa),
4300 				.tx_mcs_80 = cpu_to_le16(0xfffa),
4301 				.rx_mcs_160 = cpu_to_le16(0xfffa),
4302 				.tx_mcs_160 = cpu_to_le16(0xfffa),
4303 				.rx_mcs_80p80 = cpu_to_le16(0xfffa),
4304 				.tx_mcs_80p80 = cpu_to_le16(0xfffa),
4305 			},
4306 		},
4307 		.eht_cap = {
4308 			.has_eht = true,
4309 			.eht_cap_elem = {
4310 				.mac_cap_info[0] =
4311 					IEEE80211_EHT_MAC_CAP0_EPCS_PRIO_ACCESS |
4312 					IEEE80211_EHT_MAC_CAP0_OM_CONTROL |
4313 					IEEE80211_EHT_MAC_CAP0_TRIG_TXOP_SHARING_MODE1,
4314 				.phy_cap_info[0] =
4315 					IEEE80211_EHT_PHY_CAP0_242_TONE_RU_GT20MHZ |
4316 					IEEE80211_EHT_PHY_CAP0_NDP_4_EHT_LFT_32_GI |
4317 					IEEE80211_EHT_PHY_CAP0_PARTIAL_BW_UL_MU_MIMO |
4318 					IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER |
4319 					IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE |
4320 					IEEE80211_EHT_PHY_CAP0_BEAMFORMEE_SS_80MHZ_MASK,
4321 				.phy_cap_info[1] =
4322 					IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_80MHZ_MASK |
4323 					IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_160MHZ_MASK,
4324 				.phy_cap_info[2] =
4325 					IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_80MHZ_MASK |
4326 					IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_160MHZ_MASK,
4327 				.phy_cap_info[3] =
4328 					IEEE80211_EHT_PHY_CAP3_NG_16_SU_FEEDBACK |
4329 					IEEE80211_EHT_PHY_CAP3_NG_16_MU_FEEDBACK |
4330 					IEEE80211_EHT_PHY_CAP3_CODEBOOK_4_2_SU_FDBK |
4331 					IEEE80211_EHT_PHY_CAP3_CODEBOOK_7_5_MU_FDBK |
4332 					IEEE80211_EHT_PHY_CAP3_TRIG_SU_BF_FDBK |
4333 					IEEE80211_EHT_PHY_CAP3_TRIG_MU_BF_PART_BW_FDBK |
4334 					IEEE80211_EHT_PHY_CAP3_TRIG_CQI_FDBK,
4335 				.phy_cap_info[4] =
4336 					IEEE80211_EHT_PHY_CAP4_PART_BW_DL_MU_MIMO |
4337 					IEEE80211_EHT_PHY_CAP4_PSR_SR_SUPP |
4338 					IEEE80211_EHT_PHY_CAP4_POWER_BOOST_FACT_SUPP |
4339 					IEEE80211_EHT_PHY_CAP4_EHT_MU_PPDU_4_EHT_LTF_08_GI |
4340 					IEEE80211_EHT_PHY_CAP4_MAX_NC_MASK,
4341 				.phy_cap_info[5] =
4342 					IEEE80211_EHT_PHY_CAP5_NON_TRIG_CQI_FEEDBACK |
4343 					IEEE80211_EHT_PHY_CAP5_TX_LESS_242_TONE_RU_SUPP |
4344 					IEEE80211_EHT_PHY_CAP5_RX_LESS_242_TONE_RU_SUPP |
4345 					IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT |
4346 					IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK |
4347 					IEEE80211_EHT_PHY_CAP5_MAX_NUM_SUPP_EHT_LTF_MASK,
4348 				.phy_cap_info[6] =
4349 					IEEE80211_EHT_PHY_CAP6_MAX_NUM_SUPP_EHT_LTF_MASK |
4350 					IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_MASK,
4351 				.phy_cap_info[7] =
4352 					IEEE80211_EHT_PHY_CAP7_20MHZ_STA_RX_NDP_WIDER_BW |
4353 					IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_80MHZ |
4354 					IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_160MHZ |
4355 					IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ |
4356 					IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ,
4357 			},
4358 
4359 			/* For all MCS and bandwidth, set 8 NSS for both Tx and
4360 			 * Rx
4361 			 */
4362 			.eht_mcs_nss_supp = {
4363 				/*
4364 				 * As B1 and B2 are set in the supported
4365 				 * channel width set field in the HE PHY
4366 				 * capabilities information field include all
4367 				 * the following MCS/NSS.
4368 				 */
4369 				.bw._80 = {
4370 					.rx_tx_mcs9_max_nss = 0x88,
4371 					.rx_tx_mcs11_max_nss = 0x88,
4372 					.rx_tx_mcs13_max_nss = 0x88,
4373 				},
4374 				.bw._160 = {
4375 					.rx_tx_mcs9_max_nss = 0x88,
4376 					.rx_tx_mcs11_max_nss = 0x88,
4377 					.rx_tx_mcs13_max_nss = 0x88,
4378 				},
4379 			},
4380 			/* PPE threshold information is not supported */
4381 		},
4382 	},
4383 	{
4384 		.types_mask = BIT(NL80211_IFTYPE_AP),
4385 		.he_cap = {
4386 			.has_he = true,
4387 			.he_cap_elem = {
4388 				.mac_cap_info[0] =
4389 					IEEE80211_HE_MAC_CAP0_HTC_HE,
4390 				.mac_cap_info[1] =
4391 					IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US |
4392 					IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
4393 				.mac_cap_info[2] =
4394 					IEEE80211_HE_MAC_CAP2_BSR |
4395 					IEEE80211_HE_MAC_CAP2_MU_CASCADING |
4396 					IEEE80211_HE_MAC_CAP2_ACK_EN,
4397 				.mac_cap_info[3] =
4398 					IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
4399 					IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3,
4400 				.mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU,
4401 				.phy_cap_info[0] =
4402 					IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G |
4403 					IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G |
4404 					IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
4405 				.phy_cap_info[1] =
4406 					IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
4407 					IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
4408 					IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
4409 					IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
4410 				.phy_cap_info[2] =
4411 					IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US |
4412 					IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ |
4413 					IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ |
4414 					IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO |
4415 					IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO,
4416 
4417 				/* Leave all the other PHY capability bytes
4418 				 * unset, as DCM, beam forming, RU and PPE
4419 				 * threshold information are not supported
4420 				 */
4421 			},
4422 			.he_mcs_nss_supp = {
4423 				.rx_mcs_80 = cpu_to_le16(0xfffa),
4424 				.tx_mcs_80 = cpu_to_le16(0xfffa),
4425 				.rx_mcs_160 = cpu_to_le16(0xfffa),
4426 				.tx_mcs_160 = cpu_to_le16(0xfffa),
4427 				.rx_mcs_80p80 = cpu_to_le16(0xfffa),
4428 				.tx_mcs_80p80 = cpu_to_le16(0xfffa),
4429 			},
4430 		},
4431 		.eht_cap = {
4432 			.has_eht = true,
4433 			.eht_cap_elem = {
4434 				.mac_cap_info[0] =
4435 					IEEE80211_EHT_MAC_CAP0_EPCS_PRIO_ACCESS |
4436 					IEEE80211_EHT_MAC_CAP0_OM_CONTROL |
4437 					IEEE80211_EHT_MAC_CAP0_TRIG_TXOP_SHARING_MODE1,
4438 				.phy_cap_info[0] =
4439 					IEEE80211_EHT_PHY_CAP0_242_TONE_RU_GT20MHZ |
4440 					IEEE80211_EHT_PHY_CAP0_NDP_4_EHT_LFT_32_GI |
4441 					IEEE80211_EHT_PHY_CAP0_PARTIAL_BW_UL_MU_MIMO |
4442 					IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER |
4443 					IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE |
4444 					IEEE80211_EHT_PHY_CAP0_BEAMFORMEE_SS_80MHZ_MASK,
4445 				.phy_cap_info[1] =
4446 					IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_80MHZ_MASK |
4447 					IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_160MHZ_MASK,
4448 				.phy_cap_info[2] =
4449 					IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_80MHZ_MASK |
4450 					IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_160MHZ_MASK,
4451 				.phy_cap_info[3] =
4452 					IEEE80211_EHT_PHY_CAP3_NG_16_SU_FEEDBACK |
4453 					IEEE80211_EHT_PHY_CAP3_NG_16_MU_FEEDBACK |
4454 					IEEE80211_EHT_PHY_CAP3_CODEBOOK_4_2_SU_FDBK |
4455 					IEEE80211_EHT_PHY_CAP3_CODEBOOK_7_5_MU_FDBK |
4456 					IEEE80211_EHT_PHY_CAP3_TRIG_SU_BF_FDBK |
4457 					IEEE80211_EHT_PHY_CAP3_TRIG_MU_BF_PART_BW_FDBK |
4458 					IEEE80211_EHT_PHY_CAP3_TRIG_CQI_FDBK,
4459 				.phy_cap_info[4] =
4460 					IEEE80211_EHT_PHY_CAP4_PART_BW_DL_MU_MIMO |
4461 					IEEE80211_EHT_PHY_CAP4_PSR_SR_SUPP |
4462 					IEEE80211_EHT_PHY_CAP4_POWER_BOOST_FACT_SUPP |
4463 					IEEE80211_EHT_PHY_CAP4_EHT_MU_PPDU_4_EHT_LTF_08_GI |
4464 					IEEE80211_EHT_PHY_CAP4_MAX_NC_MASK,
4465 				.phy_cap_info[5] =
4466 					IEEE80211_EHT_PHY_CAP5_NON_TRIG_CQI_FEEDBACK |
4467 					IEEE80211_EHT_PHY_CAP5_TX_LESS_242_TONE_RU_SUPP |
4468 					IEEE80211_EHT_PHY_CAP5_RX_LESS_242_TONE_RU_SUPP |
4469 					IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT |
4470 					IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK |
4471 					IEEE80211_EHT_PHY_CAP5_MAX_NUM_SUPP_EHT_LTF_MASK,
4472 				.phy_cap_info[6] =
4473 					IEEE80211_EHT_PHY_CAP6_MAX_NUM_SUPP_EHT_LTF_MASK |
4474 					IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_MASK,
4475 				.phy_cap_info[7] =
4476 					IEEE80211_EHT_PHY_CAP7_20MHZ_STA_RX_NDP_WIDER_BW |
4477 					IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_80MHZ |
4478 					IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_160MHZ |
4479 					IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ |
4480 					IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ,
4481 			},
4482 
4483 			/* For all MCS and bandwidth, set 8 NSS for both Tx and
4484 			 * Rx
4485 			 */
4486 			.eht_mcs_nss_supp = {
4487 				/*
4488 				 * As B1 and B2 are set in the supported
4489 				 * channel width set field in the HE PHY
4490 				 * capabilities information field include all
4491 				 * the following MCS/NSS.
4492 				 */
4493 				.bw._80 = {
4494 					.rx_tx_mcs9_max_nss = 0x88,
4495 					.rx_tx_mcs11_max_nss = 0x88,
4496 					.rx_tx_mcs13_max_nss = 0x88,
4497 				},
4498 				.bw._160 = {
4499 					.rx_tx_mcs9_max_nss = 0x88,
4500 					.rx_tx_mcs11_max_nss = 0x88,
4501 					.rx_tx_mcs13_max_nss = 0x88,
4502 				},
4503 			},
4504 			/* PPE threshold information is not supported */
4505 		},
4506 	},
4507 #ifdef CONFIG_MAC80211_MESH
4508 	{
4509 		/* TODO: should we support other types, e.g., IBSS?*/
4510 		.types_mask = BIT(NL80211_IFTYPE_MESH_POINT),
4511 		.he_cap = {
4512 			.has_he = true,
4513 			.he_cap_elem = {
4514 				.mac_cap_info[0] =
4515 					IEEE80211_HE_MAC_CAP0_HTC_HE,
4516 				.mac_cap_info[1] =
4517 					IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
4518 				.mac_cap_info[2] =
4519 					IEEE80211_HE_MAC_CAP2_ACK_EN,
4520 				.mac_cap_info[3] =
4521 					IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
4522 					IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3,
4523 				.mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU,
4524 				.phy_cap_info[0] =
4525 					IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G |
4526 					IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G |
4527 					IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
4528 				.phy_cap_info[1] =
4529 					IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
4530 					IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
4531 					IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
4532 					IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
4533 				.phy_cap_info[2] = 0,
4534 
4535 				/* Leave all the other PHY capability bytes
4536 				 * unset, as DCM, beam forming, RU and PPE
4537 				 * threshold information are not supported
4538 				 */
4539 			},
4540 			.he_mcs_nss_supp = {
4541 				.rx_mcs_80 = cpu_to_le16(0xfffa),
4542 				.tx_mcs_80 = cpu_to_le16(0xfffa),
4543 				.rx_mcs_160 = cpu_to_le16(0xfffa),
4544 				.tx_mcs_160 = cpu_to_le16(0xfffa),
4545 				.rx_mcs_80p80 = cpu_to_le16(0xfffa),
4546 				.tx_mcs_80p80 = cpu_to_le16(0xfffa),
4547 			},
4548 		},
4549 	},
4550 #endif
4551 };
4552 
4553 static const struct ieee80211_sband_iftype_data sband_capa_6ghz[] = {
4554 	{
4555 		/* TODO: should we support other types, e.g., P2P? */
4556 		.types_mask = BIT(NL80211_IFTYPE_STATION),
4557 		.he_6ghz_capa = {
4558 			.capa = cpu_to_le16(IEEE80211_HE_6GHZ_CAP_MIN_MPDU_START |
4559 					    IEEE80211_HE_6GHZ_CAP_MAX_AMPDU_LEN_EXP |
4560 					    IEEE80211_HE_6GHZ_CAP_MAX_MPDU_LEN |
4561 					    IEEE80211_HE_6GHZ_CAP_SM_PS |
4562 					    IEEE80211_HE_6GHZ_CAP_RD_RESPONDER |
4563 					    IEEE80211_HE_6GHZ_CAP_TX_ANTPAT_CONS |
4564 					    IEEE80211_HE_6GHZ_CAP_RX_ANTPAT_CONS),
4565 		},
4566 		.he_cap = {
4567 			.has_he = true,
4568 			.he_cap_elem = {
4569 				.mac_cap_info[0] =
4570 					IEEE80211_HE_MAC_CAP0_HTC_HE,
4571 				.mac_cap_info[1] =
4572 					IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US |
4573 					IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
4574 				.mac_cap_info[2] =
4575 					IEEE80211_HE_MAC_CAP2_BSR |
4576 					IEEE80211_HE_MAC_CAP2_MU_CASCADING |
4577 					IEEE80211_HE_MAC_CAP2_ACK_EN,
4578 				.mac_cap_info[3] =
4579 					IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
4580 					IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3,
4581 				.mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU,
4582 				.phy_cap_info[0] =
4583 					IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G |
4584 					IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G |
4585 					IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
4586 				.phy_cap_info[1] =
4587 					IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
4588 					IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
4589 					IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
4590 					IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
4591 				.phy_cap_info[2] =
4592 					IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US |
4593 					IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ |
4594 					IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ |
4595 					IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO |
4596 					IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO,
4597 
4598 				/* Leave all the other PHY capability bytes
4599 				 * unset, as DCM, beam forming, RU and PPE
4600 				 * threshold information are not supported
4601 				 */
4602 			},
4603 			.he_mcs_nss_supp = {
4604 				.rx_mcs_80 = cpu_to_le16(0xfffa),
4605 				.tx_mcs_80 = cpu_to_le16(0xfffa),
4606 				.rx_mcs_160 = cpu_to_le16(0xfffa),
4607 				.tx_mcs_160 = cpu_to_le16(0xfffa),
4608 				.rx_mcs_80p80 = cpu_to_le16(0xfffa),
4609 				.tx_mcs_80p80 = cpu_to_le16(0xfffa),
4610 			},
4611 		},
4612 		.eht_cap = {
4613 			.has_eht = true,
4614 			.eht_cap_elem = {
4615 				.mac_cap_info[0] =
4616 					IEEE80211_EHT_MAC_CAP0_EPCS_PRIO_ACCESS |
4617 					IEEE80211_EHT_MAC_CAP0_OM_CONTROL |
4618 					IEEE80211_EHT_MAC_CAP0_TRIG_TXOP_SHARING_MODE1,
4619 				.phy_cap_info[0] =
4620 					IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ |
4621 					IEEE80211_EHT_PHY_CAP0_242_TONE_RU_GT20MHZ |
4622 					IEEE80211_EHT_PHY_CAP0_NDP_4_EHT_LFT_32_GI |
4623 					IEEE80211_EHT_PHY_CAP0_PARTIAL_BW_UL_MU_MIMO |
4624 					IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER |
4625 					IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE |
4626 					IEEE80211_EHT_PHY_CAP0_BEAMFORMEE_SS_80MHZ_MASK,
4627 				.phy_cap_info[1] =
4628 					IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_80MHZ_MASK |
4629 					IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_160MHZ_MASK |
4630 					IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_320MHZ_MASK,
4631 				.phy_cap_info[2] =
4632 					IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_80MHZ_MASK |
4633 					IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_160MHZ_MASK |
4634 					IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_320MHZ_MASK,
4635 				.phy_cap_info[3] =
4636 					IEEE80211_EHT_PHY_CAP3_NG_16_SU_FEEDBACK |
4637 					IEEE80211_EHT_PHY_CAP3_NG_16_MU_FEEDBACK |
4638 					IEEE80211_EHT_PHY_CAP3_CODEBOOK_4_2_SU_FDBK |
4639 					IEEE80211_EHT_PHY_CAP3_CODEBOOK_7_5_MU_FDBK |
4640 					IEEE80211_EHT_PHY_CAP3_TRIG_SU_BF_FDBK |
4641 					IEEE80211_EHT_PHY_CAP3_TRIG_MU_BF_PART_BW_FDBK |
4642 					IEEE80211_EHT_PHY_CAP3_TRIG_CQI_FDBK,
4643 				.phy_cap_info[4] =
4644 					IEEE80211_EHT_PHY_CAP4_PART_BW_DL_MU_MIMO |
4645 					IEEE80211_EHT_PHY_CAP4_PSR_SR_SUPP |
4646 					IEEE80211_EHT_PHY_CAP4_POWER_BOOST_FACT_SUPP |
4647 					IEEE80211_EHT_PHY_CAP4_EHT_MU_PPDU_4_EHT_LTF_08_GI |
4648 					IEEE80211_EHT_PHY_CAP4_MAX_NC_MASK,
4649 				.phy_cap_info[5] =
4650 					IEEE80211_EHT_PHY_CAP5_NON_TRIG_CQI_FEEDBACK |
4651 					IEEE80211_EHT_PHY_CAP5_TX_LESS_242_TONE_RU_SUPP |
4652 					IEEE80211_EHT_PHY_CAP5_RX_LESS_242_TONE_RU_SUPP |
4653 					IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT |
4654 					IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK |
4655 					IEEE80211_EHT_PHY_CAP5_MAX_NUM_SUPP_EHT_LTF_MASK,
4656 				.phy_cap_info[6] =
4657 					IEEE80211_EHT_PHY_CAP6_MAX_NUM_SUPP_EHT_LTF_MASK |
4658 					IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_MASK |
4659 					IEEE80211_EHT_PHY_CAP6_EHT_DUP_6GHZ_SUPP,
4660 				.phy_cap_info[7] =
4661 					IEEE80211_EHT_PHY_CAP7_20MHZ_STA_RX_NDP_WIDER_BW |
4662 					IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_80MHZ |
4663 					IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_160MHZ |
4664 					IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_320MHZ |
4665 					IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ |
4666 					IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ |
4667 					IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ,
4668 			},
4669 
4670 			/* For all MCS and bandwidth, set 8 NSS for both Tx and
4671 			 * Rx
4672 			 */
4673 			.eht_mcs_nss_supp = {
4674 				/*
4675 				 * As B1 and B2 are set in the supported
4676 				 * channel width set field in the HE PHY
4677 				 * capabilities information field and 320MHz in
4678 				 * 6GHz is supported include all the following
4679 				 * MCS/NSS.
4680 				 */
4681 				.bw._80 = {
4682 					.rx_tx_mcs9_max_nss = 0x88,
4683 					.rx_tx_mcs11_max_nss = 0x88,
4684 					.rx_tx_mcs13_max_nss = 0x88,
4685 				},
4686 				.bw._160 = {
4687 					.rx_tx_mcs9_max_nss = 0x88,
4688 					.rx_tx_mcs11_max_nss = 0x88,
4689 					.rx_tx_mcs13_max_nss = 0x88,
4690 				},
4691 				.bw._320 = {
4692 					.rx_tx_mcs9_max_nss = 0x88,
4693 					.rx_tx_mcs11_max_nss = 0x88,
4694 					.rx_tx_mcs13_max_nss = 0x88,
4695 				},
4696 			},
4697 			/* PPE threshold information is not supported */
4698 		},
4699 	},
4700 	{
4701 		.types_mask = BIT(NL80211_IFTYPE_AP),
4702 		.he_6ghz_capa = {
4703 			.capa = cpu_to_le16(IEEE80211_HE_6GHZ_CAP_MIN_MPDU_START |
4704 					    IEEE80211_HE_6GHZ_CAP_MAX_AMPDU_LEN_EXP |
4705 					    IEEE80211_HE_6GHZ_CAP_MAX_MPDU_LEN |
4706 					    IEEE80211_HE_6GHZ_CAP_SM_PS |
4707 					    IEEE80211_HE_6GHZ_CAP_RD_RESPONDER |
4708 					    IEEE80211_HE_6GHZ_CAP_TX_ANTPAT_CONS |
4709 					    IEEE80211_HE_6GHZ_CAP_RX_ANTPAT_CONS),
4710 		},
4711 		.he_cap = {
4712 			.has_he = true,
4713 			.he_cap_elem = {
4714 				.mac_cap_info[0] =
4715 					IEEE80211_HE_MAC_CAP0_HTC_HE,
4716 				.mac_cap_info[1] =
4717 					IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US |
4718 					IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
4719 				.mac_cap_info[2] =
4720 					IEEE80211_HE_MAC_CAP2_BSR |
4721 					IEEE80211_HE_MAC_CAP2_MU_CASCADING |
4722 					IEEE80211_HE_MAC_CAP2_ACK_EN,
4723 				.mac_cap_info[3] =
4724 					IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
4725 					IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3,
4726 				.mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU,
4727 				.phy_cap_info[0] =
4728 					IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G |
4729 					IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G |
4730 					IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
4731 				.phy_cap_info[1] =
4732 					IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
4733 					IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
4734 					IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
4735 					IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
4736 				.phy_cap_info[2] =
4737 					IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US |
4738 					IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ |
4739 					IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ |
4740 					IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO |
4741 					IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO,
4742 
4743 				/* Leave all the other PHY capability bytes
4744 				 * unset, as DCM, beam forming, RU and PPE
4745 				 * threshold information are not supported
4746 				 */
4747 			},
4748 			.he_mcs_nss_supp = {
4749 				.rx_mcs_80 = cpu_to_le16(0xfffa),
4750 				.tx_mcs_80 = cpu_to_le16(0xfffa),
4751 				.rx_mcs_160 = cpu_to_le16(0xfffa),
4752 				.tx_mcs_160 = cpu_to_le16(0xfffa),
4753 				.rx_mcs_80p80 = cpu_to_le16(0xfffa),
4754 				.tx_mcs_80p80 = cpu_to_le16(0xfffa),
4755 			},
4756 		},
4757 		.eht_cap = {
4758 			.has_eht = true,
4759 			.eht_cap_elem = {
4760 				.mac_cap_info[0] =
4761 					IEEE80211_EHT_MAC_CAP0_EPCS_PRIO_ACCESS |
4762 					IEEE80211_EHT_MAC_CAP0_OM_CONTROL |
4763 					IEEE80211_EHT_MAC_CAP0_TRIG_TXOP_SHARING_MODE1,
4764 				.phy_cap_info[0] =
4765 					IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ |
4766 					IEEE80211_EHT_PHY_CAP0_242_TONE_RU_GT20MHZ |
4767 					IEEE80211_EHT_PHY_CAP0_NDP_4_EHT_LFT_32_GI |
4768 					IEEE80211_EHT_PHY_CAP0_PARTIAL_BW_UL_MU_MIMO |
4769 					IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER |
4770 					IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE |
4771 					IEEE80211_EHT_PHY_CAP0_BEAMFORMEE_SS_80MHZ_MASK,
4772 				.phy_cap_info[1] =
4773 					IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_80MHZ_MASK |
4774 					IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_160MHZ_MASK |
4775 					IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_320MHZ_MASK,
4776 				.phy_cap_info[2] =
4777 					IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_80MHZ_MASK |
4778 					IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_160MHZ_MASK |
4779 					IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_320MHZ_MASK,
4780 				.phy_cap_info[3] =
4781 					IEEE80211_EHT_PHY_CAP3_NG_16_SU_FEEDBACK |
4782 					IEEE80211_EHT_PHY_CAP3_NG_16_MU_FEEDBACK |
4783 					IEEE80211_EHT_PHY_CAP3_CODEBOOK_4_2_SU_FDBK |
4784 					IEEE80211_EHT_PHY_CAP3_CODEBOOK_7_5_MU_FDBK |
4785 					IEEE80211_EHT_PHY_CAP3_TRIG_SU_BF_FDBK |
4786 					IEEE80211_EHT_PHY_CAP3_TRIG_MU_BF_PART_BW_FDBK |
4787 					IEEE80211_EHT_PHY_CAP3_TRIG_CQI_FDBK,
4788 				.phy_cap_info[4] =
4789 					IEEE80211_EHT_PHY_CAP4_PART_BW_DL_MU_MIMO |
4790 					IEEE80211_EHT_PHY_CAP4_PSR_SR_SUPP |
4791 					IEEE80211_EHT_PHY_CAP4_POWER_BOOST_FACT_SUPP |
4792 					IEEE80211_EHT_PHY_CAP4_EHT_MU_PPDU_4_EHT_LTF_08_GI |
4793 					IEEE80211_EHT_PHY_CAP4_MAX_NC_MASK,
4794 				.phy_cap_info[5] =
4795 					IEEE80211_EHT_PHY_CAP5_NON_TRIG_CQI_FEEDBACK |
4796 					IEEE80211_EHT_PHY_CAP5_TX_LESS_242_TONE_RU_SUPP |
4797 					IEEE80211_EHT_PHY_CAP5_RX_LESS_242_TONE_RU_SUPP |
4798 					IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT |
4799 					IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK |
4800 					IEEE80211_EHT_PHY_CAP5_MAX_NUM_SUPP_EHT_LTF_MASK,
4801 				.phy_cap_info[6] =
4802 					IEEE80211_EHT_PHY_CAP6_MAX_NUM_SUPP_EHT_LTF_MASK |
4803 					IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_MASK |
4804 					IEEE80211_EHT_PHY_CAP6_EHT_DUP_6GHZ_SUPP,
4805 				.phy_cap_info[7] =
4806 					IEEE80211_EHT_PHY_CAP7_20MHZ_STA_RX_NDP_WIDER_BW |
4807 					IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_80MHZ |
4808 					IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_160MHZ |
4809 					IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_320MHZ |
4810 					IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ |
4811 					IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ |
4812 					IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ,
4813 			},
4814 
4815 			/* For all MCS and bandwidth, set 8 NSS for both Tx and
4816 			 * Rx
4817 			 */
4818 			.eht_mcs_nss_supp = {
4819 				/*
4820 				 * As B1 and B2 are set in the supported
4821 				 * channel width set field in the HE PHY
4822 				 * capabilities information field and 320MHz in
4823 				 * 6GHz is supported include all the following
4824 				 * MCS/NSS.
4825 				 */
4826 				.bw._80 = {
4827 					.rx_tx_mcs9_max_nss = 0x88,
4828 					.rx_tx_mcs11_max_nss = 0x88,
4829 					.rx_tx_mcs13_max_nss = 0x88,
4830 				},
4831 				.bw._160 = {
4832 					.rx_tx_mcs9_max_nss = 0x88,
4833 					.rx_tx_mcs11_max_nss = 0x88,
4834 					.rx_tx_mcs13_max_nss = 0x88,
4835 				},
4836 				.bw._320 = {
4837 					.rx_tx_mcs9_max_nss = 0x88,
4838 					.rx_tx_mcs11_max_nss = 0x88,
4839 					.rx_tx_mcs13_max_nss = 0x88,
4840 				},
4841 			},
4842 			/* PPE threshold information is not supported */
4843 		},
4844 	},
4845 #ifdef CONFIG_MAC80211_MESH
4846 	{
4847 		/* TODO: should we support other types, e.g., IBSS?*/
4848 		.types_mask = BIT(NL80211_IFTYPE_MESH_POINT),
4849 		.he_6ghz_capa = {
4850 			.capa = cpu_to_le16(IEEE80211_HE_6GHZ_CAP_MIN_MPDU_START |
4851 					    IEEE80211_HE_6GHZ_CAP_MAX_AMPDU_LEN_EXP |
4852 					    IEEE80211_HE_6GHZ_CAP_MAX_MPDU_LEN |
4853 					    IEEE80211_HE_6GHZ_CAP_SM_PS |
4854 					    IEEE80211_HE_6GHZ_CAP_RD_RESPONDER |
4855 					    IEEE80211_HE_6GHZ_CAP_TX_ANTPAT_CONS |
4856 					    IEEE80211_HE_6GHZ_CAP_RX_ANTPAT_CONS),
4857 		},
4858 		.he_cap = {
4859 			.has_he = true,
4860 			.he_cap_elem = {
4861 				.mac_cap_info[0] =
4862 					IEEE80211_HE_MAC_CAP0_HTC_HE,
4863 				.mac_cap_info[1] =
4864 					IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
4865 				.mac_cap_info[2] =
4866 					IEEE80211_HE_MAC_CAP2_ACK_EN,
4867 				.mac_cap_info[3] =
4868 					IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
4869 					IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3,
4870 				.mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU,
4871 				.phy_cap_info[0] =
4872 					IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G |
4873 					IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G |
4874 					IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
4875 				.phy_cap_info[1] =
4876 					IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
4877 					IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
4878 					IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
4879 					IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
4880 				.phy_cap_info[2] = 0,
4881 
4882 				/* Leave all the other PHY capability bytes
4883 				 * unset, as DCM, beam forming, RU and PPE
4884 				 * threshold information are not supported
4885 				 */
4886 			},
4887 			.he_mcs_nss_supp = {
4888 				.rx_mcs_80 = cpu_to_le16(0xfffa),
4889 				.tx_mcs_80 = cpu_to_le16(0xfffa),
4890 				.rx_mcs_160 = cpu_to_le16(0xfffa),
4891 				.tx_mcs_160 = cpu_to_le16(0xfffa),
4892 				.rx_mcs_80p80 = cpu_to_le16(0xfffa),
4893 				.tx_mcs_80p80 = cpu_to_le16(0xfffa),
4894 			},
4895 		},
4896 	},
4897 #endif
4898 };
4899 
mac80211_hwsim_sband_capab(struct ieee80211_supported_band * sband)4900 static void mac80211_hwsim_sband_capab(struct ieee80211_supported_band *sband)
4901 {
4902 	u16 n_iftype_data;
4903 
4904 	if (sband->band == NL80211_BAND_2GHZ) {
4905 		n_iftype_data = ARRAY_SIZE(sband_capa_2ghz);
4906 		sband->iftype_data =
4907 			(struct ieee80211_sband_iftype_data *)sband_capa_2ghz;
4908 	} else if (sband->band == NL80211_BAND_5GHZ) {
4909 		n_iftype_data = ARRAY_SIZE(sband_capa_5ghz);
4910 		sband->iftype_data =
4911 			(struct ieee80211_sband_iftype_data *)sband_capa_5ghz;
4912 	} else if (sband->band == NL80211_BAND_6GHZ) {
4913 		n_iftype_data = ARRAY_SIZE(sband_capa_6ghz);
4914 		sband->iftype_data =
4915 			(struct ieee80211_sband_iftype_data *)sband_capa_6ghz;
4916 	} else {
4917 		return;
4918 	}
4919 
4920 	sband->n_iftype_data = n_iftype_data;
4921 }
4922 
4923 #ifdef CONFIG_MAC80211_MESH
4924 #define HWSIM_MESH_BIT BIT(NL80211_IFTYPE_MESH_POINT)
4925 #else
4926 #define HWSIM_MESH_BIT 0
4927 #endif
4928 
4929 #define HWSIM_DEFAULT_IF_LIMIT \
4930 	(BIT(NL80211_IFTYPE_STATION) | \
4931 	 BIT(NL80211_IFTYPE_P2P_CLIENT) | \
4932 	 BIT(NL80211_IFTYPE_AP) | \
4933 	 BIT(NL80211_IFTYPE_P2P_GO) | \
4934 	 HWSIM_MESH_BIT)
4935 
4936 #define HWSIM_IFTYPE_SUPPORT_MASK \
4937 	(BIT(NL80211_IFTYPE_STATION) | \
4938 	 BIT(NL80211_IFTYPE_AP) | \
4939 	 BIT(NL80211_IFTYPE_P2P_CLIENT) | \
4940 	 BIT(NL80211_IFTYPE_P2P_GO) | \
4941 	 BIT(NL80211_IFTYPE_ADHOC) | \
4942 	 BIT(NL80211_IFTYPE_MESH_POINT) | \
4943 	 BIT(NL80211_IFTYPE_OCB))
4944 
mac80211_hwsim_new_radio(struct genl_info * info,struct hwsim_new_radio_params * param)4945 static int mac80211_hwsim_new_radio(struct genl_info *info,
4946 				    struct hwsim_new_radio_params *param)
4947 {
4948 	int err;
4949 	u8 addr[ETH_ALEN];
4950 	struct mac80211_hwsim_data *data;
4951 	struct ieee80211_hw *hw;
4952 	enum nl80211_band band;
4953 	const struct ieee80211_ops *ops = &mac80211_hwsim_ops;
4954 	struct net *net;
4955 	int idx, i;
4956 	int n_limits = 0;
4957 
4958 	if (WARN_ON(param->channels > 1 && !param->use_chanctx))
4959 		return -EINVAL;
4960 
4961 	spin_lock_bh(&hwsim_radio_lock);
4962 	idx = hwsim_radio_idx++;
4963 	spin_unlock_bh(&hwsim_radio_lock);
4964 
4965 	if (param->mlo)
4966 		ops = &mac80211_hwsim_mlo_ops;
4967 	else if (param->use_chanctx)
4968 		ops = &mac80211_hwsim_mchan_ops;
4969 	hw = ieee80211_alloc_hw_nm(sizeof(*data), ops, param->hwname);
4970 	if (!hw) {
4971 		pr_debug("mac80211_hwsim: ieee80211_alloc_hw failed\n");
4972 		err = -ENOMEM;
4973 		goto failed;
4974 	}
4975 
4976 	/* ieee80211_alloc_hw_nm may have used a default name */
4977 	param->hwname = wiphy_name(hw->wiphy);
4978 
4979 	if (info)
4980 		net = genl_info_net(info);
4981 	else
4982 		net = &init_net;
4983 	wiphy_net_set(hw->wiphy, net);
4984 
4985 	data = hw->priv;
4986 	data->hw = hw;
4987 
4988 	data->dev = device_create(hwsim_class, NULL, 0, hw, "hwsim%d", idx);
4989 	if (IS_ERR(data->dev)) {
4990 		printk(KERN_DEBUG
4991 		       "mac80211_hwsim: device_create failed (%ld)\n",
4992 		       PTR_ERR(data->dev));
4993 		err = -ENOMEM;
4994 		goto failed_drvdata;
4995 	}
4996 	data->dev->driver = &mac80211_hwsim_driver.driver;
4997 	err = device_bind_driver(data->dev);
4998 	if (err != 0) {
4999 		pr_debug("mac80211_hwsim: device_bind_driver failed (%d)\n",
5000 		       err);
5001 		goto failed_bind;
5002 	}
5003 
5004 	skb_queue_head_init(&data->pending);
5005 
5006 	SET_IEEE80211_DEV(hw, data->dev);
5007 	if (!param->perm_addr) {
5008 		eth_zero_addr(addr);
5009 		addr[0] = 0x02;
5010 		addr[3] = idx >> 8;
5011 		addr[4] = idx;
5012 		memcpy(data->addresses[0].addr, addr, ETH_ALEN);
5013 		/* Why need here second address ? */
5014 		memcpy(data->addresses[1].addr, addr, ETH_ALEN);
5015 		data->addresses[1].addr[0] |= 0x40;
5016 		hw->wiphy->n_addresses = 2;
5017 		hw->wiphy->addresses = data->addresses;
5018 		/* possible address clash is checked at hash table insertion */
5019 	} else {
5020 		memcpy(data->addresses[0].addr, param->perm_addr, ETH_ALEN);
5021 		/* compatibility with automatically generated mac addr */
5022 		memcpy(data->addresses[1].addr, param->perm_addr, ETH_ALEN);
5023 		hw->wiphy->n_addresses = 2;
5024 		hw->wiphy->addresses = data->addresses;
5025 	}
5026 
5027 	data->channels = param->channels;
5028 	data->use_chanctx = param->use_chanctx;
5029 	data->idx = idx;
5030 	data->destroy_on_close = param->destroy_on_close;
5031 	if (info)
5032 		data->portid = info->snd_portid;
5033 
5034 	/* setup interface limits, only on interface types we support */
5035 	if (param->iftypes & BIT(NL80211_IFTYPE_ADHOC)) {
5036 		data->if_limits[n_limits].max = 1;
5037 		data->if_limits[n_limits].types = BIT(NL80211_IFTYPE_ADHOC);
5038 		n_limits++;
5039 	}
5040 
5041 	if (param->iftypes & HWSIM_DEFAULT_IF_LIMIT) {
5042 		data->if_limits[n_limits].max = 2048;
5043 		/*
5044 		 * For this case, we may only support a subset of
5045 		 * HWSIM_DEFAULT_IF_LIMIT, therefore we only want to add the
5046 		 * bits that both param->iftype & HWSIM_DEFAULT_IF_LIMIT have.
5047 		 */
5048 		data->if_limits[n_limits].types =
5049 					HWSIM_DEFAULT_IF_LIMIT & param->iftypes;
5050 		n_limits++;
5051 	}
5052 
5053 	if (param->iftypes & BIT(NL80211_IFTYPE_P2P_DEVICE)) {
5054 		data->if_limits[n_limits].max = 1;
5055 		data->if_limits[n_limits].types =
5056 						BIT(NL80211_IFTYPE_P2P_DEVICE);
5057 		n_limits++;
5058 	}
5059 
5060 	if (data->use_chanctx) {
5061 		hw->wiphy->max_scan_ssids = 255;
5062 		hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
5063 		hw->wiphy->max_remain_on_channel_duration = 1000;
5064 		data->if_combination.radar_detect_widths = 0;
5065 		data->if_combination.num_different_channels = data->channels;
5066 	} else {
5067 		data->if_combination.num_different_channels = 1;
5068 		data->if_combination.radar_detect_widths =
5069 					BIT(NL80211_CHAN_WIDTH_5) |
5070 					BIT(NL80211_CHAN_WIDTH_10) |
5071 					BIT(NL80211_CHAN_WIDTH_20_NOHT) |
5072 					BIT(NL80211_CHAN_WIDTH_20) |
5073 					BIT(NL80211_CHAN_WIDTH_40) |
5074 					BIT(NL80211_CHAN_WIDTH_80) |
5075 					BIT(NL80211_CHAN_WIDTH_160);
5076 	}
5077 
5078 	if (!n_limits) {
5079 		err = -EINVAL;
5080 		goto failed_hw;
5081 	}
5082 
5083 	data->if_combination.max_interfaces = 0;
5084 	for (i = 0; i < n_limits; i++)
5085 		data->if_combination.max_interfaces +=
5086 			data->if_limits[i].max;
5087 
5088 	data->if_combination.n_limits = n_limits;
5089 	data->if_combination.limits = data->if_limits;
5090 
5091 	/*
5092 	 * If we actually were asked to support combinations,
5093 	 * advertise them - if there's only a single thing like
5094 	 * only IBSS then don't advertise it as combinations.
5095 	 */
5096 	if (data->if_combination.max_interfaces > 1) {
5097 		hw->wiphy->iface_combinations = &data->if_combination;
5098 		hw->wiphy->n_iface_combinations = 1;
5099 	}
5100 
5101 	if (param->ciphers) {
5102 		memcpy(data->ciphers, param->ciphers,
5103 		       param->n_ciphers * sizeof(u32));
5104 		hw->wiphy->cipher_suites = data->ciphers;
5105 		hw->wiphy->n_cipher_suites = param->n_ciphers;
5106 	}
5107 
5108 	hw->wiphy->mbssid_max_interfaces = 8;
5109 	hw->wiphy->ema_max_profile_periodicity = 3;
5110 
5111 	data->rx_rssi = DEFAULT_RX_RSSI;
5112 
5113 	INIT_DELAYED_WORK(&data->roc_start, hw_roc_start);
5114 	INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
5115 	INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
5116 
5117 	hw->queues = 5;
5118 	hw->offchannel_tx_hw_queue = 4;
5119 
5120 	ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
5121 	ieee80211_hw_set(hw, CHANCTX_STA_CSA);
5122 	ieee80211_hw_set(hw, SUPPORTS_HT_CCK_RATES);
5123 	ieee80211_hw_set(hw, QUEUE_CONTROL);
5124 	ieee80211_hw_set(hw, WANT_MONITOR_VIF);
5125 	ieee80211_hw_set(hw, AMPDU_AGGREGATION);
5126 	ieee80211_hw_set(hw, MFP_CAPABLE);
5127 	ieee80211_hw_set(hw, SIGNAL_DBM);
5128 	ieee80211_hw_set(hw, SUPPORTS_PS);
5129 	ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
5130 	ieee80211_hw_set(hw, TDLS_WIDER_BW);
5131 	ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID);
5132 
5133 	if (param->mlo) {
5134 		hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_MLO;
5135 		ieee80211_hw_set(hw, HAS_RATE_CONTROL);
5136 		ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
5137 		ieee80211_hw_set(hw, CONNECTION_MONITOR);
5138 		ieee80211_hw_set(hw, AP_LINK_PS);
5139 	} else {
5140 		ieee80211_hw_set(hw, HOST_BROADCAST_PS_BUFFERING);
5141 		ieee80211_hw_set(hw, PS_NULLFUNC_STACK);
5142 		if (rctbl)
5143 			ieee80211_hw_set(hw, SUPPORTS_RC_TABLE);
5144 	}
5145 
5146 	hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
5147 	hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
5148 			    WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
5149 			    WIPHY_FLAG_AP_UAPSD |
5150 			    WIPHY_FLAG_SUPPORTS_5_10_MHZ |
5151 			    WIPHY_FLAG_HAS_CHANNEL_SWITCH;
5152 	hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR |
5153 			       NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
5154 			       NL80211_FEATURE_STATIC_SMPS |
5155 			       NL80211_FEATURE_DYNAMIC_SMPS |
5156 			       NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
5157 	wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS);
5158 	wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_BEACON_PROTECTION);
5159 	wiphy_ext_feature_set(hw->wiphy,
5160 			      NL80211_EXT_FEATURE_MULTICAST_REGISTRATIONS);
5161 	wiphy_ext_feature_set(hw->wiphy,
5162 			      NL80211_EXT_FEATURE_BEACON_RATE_LEGACY);
5163 	wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER);
5164 
5165 	wiphy_ext_feature_set(hw->wiphy,
5166 			      NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT);
5167 
5168 	hw->wiphy->interface_modes = param->iftypes;
5169 
5170 	/* ask mac80211 to reserve space for magic */
5171 	hw->vif_data_size = sizeof(struct hwsim_vif_priv);
5172 	hw->sta_data_size = sizeof(struct hwsim_sta_priv);
5173 	hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
5174 
5175 	memcpy(data->channels_2ghz, hwsim_channels_2ghz,
5176 		sizeof(hwsim_channels_2ghz));
5177 	memcpy(data->channels_5ghz, hwsim_channels_5ghz,
5178 		sizeof(hwsim_channels_5ghz));
5179 	memcpy(data->channels_6ghz, hwsim_channels_6ghz,
5180 		sizeof(hwsim_channels_6ghz));
5181 	memcpy(data->channels_s1g, hwsim_channels_s1g,
5182 	       sizeof(hwsim_channels_s1g));
5183 	memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
5184 
5185 	for (band = NL80211_BAND_2GHZ; band < NUM_NL80211_BANDS; band++) {
5186 		struct ieee80211_supported_band *sband = &data->bands[band];
5187 
5188 		sband->band = band;
5189 
5190 		switch (band) {
5191 		case NL80211_BAND_2GHZ:
5192 			sband->channels = data->channels_2ghz;
5193 			sband->n_channels = ARRAY_SIZE(hwsim_channels_2ghz);
5194 			sband->bitrates = data->rates;
5195 			sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
5196 			break;
5197 		case NL80211_BAND_5GHZ:
5198 			sband->channels = data->channels_5ghz;
5199 			sband->n_channels = ARRAY_SIZE(hwsim_channels_5ghz);
5200 			sband->bitrates = data->rates + 4;
5201 			sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
5202 
5203 			sband->vht_cap.vht_supported = true;
5204 			sband->vht_cap.cap =
5205 				IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
5206 				IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
5207 				IEEE80211_VHT_CAP_RXLDPC |
5208 				IEEE80211_VHT_CAP_SHORT_GI_80 |
5209 				IEEE80211_VHT_CAP_SHORT_GI_160 |
5210 				IEEE80211_VHT_CAP_TXSTBC |
5211 				IEEE80211_VHT_CAP_RXSTBC_4 |
5212 				IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
5213 			sband->vht_cap.vht_mcs.rx_mcs_map =
5214 				cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
5215 					    IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 |
5216 					    IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
5217 					    IEEE80211_VHT_MCS_SUPPORT_0_9 << 6 |
5218 					    IEEE80211_VHT_MCS_SUPPORT_0_9 << 8 |
5219 					    IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
5220 					    IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
5221 					    IEEE80211_VHT_MCS_SUPPORT_0_9 << 14);
5222 			sband->vht_cap.vht_mcs.tx_mcs_map =
5223 				sband->vht_cap.vht_mcs.rx_mcs_map;
5224 			break;
5225 		case NL80211_BAND_6GHZ:
5226 			sband->channels = data->channels_6ghz;
5227 			sband->n_channels = ARRAY_SIZE(hwsim_channels_6ghz);
5228 			sband->bitrates = data->rates + 4;
5229 			sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
5230 			break;
5231 		case NL80211_BAND_S1GHZ:
5232 			memcpy(&sband->s1g_cap, &hwsim_s1g_cap,
5233 			       sizeof(sband->s1g_cap));
5234 			sband->channels = data->channels_s1g;
5235 			sband->n_channels = ARRAY_SIZE(hwsim_channels_s1g);
5236 			break;
5237 		default:
5238 			continue;
5239 		}
5240 
5241 		if (band != NL80211_BAND_6GHZ){
5242 			sband->ht_cap.ht_supported = true;
5243 			sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
5244 					    IEEE80211_HT_CAP_GRN_FLD |
5245 					    IEEE80211_HT_CAP_SGI_20 |
5246 					    IEEE80211_HT_CAP_SGI_40 |
5247 					    IEEE80211_HT_CAP_DSSSCCK40;
5248 			sband->ht_cap.ampdu_factor = 0x3;
5249 			sband->ht_cap.ampdu_density = 0x6;
5250 			memset(&sband->ht_cap.mcs, 0,
5251 			       sizeof(sband->ht_cap.mcs));
5252 			sband->ht_cap.mcs.rx_mask[0] = 0xff;
5253 			sband->ht_cap.mcs.rx_mask[1] = 0xff;
5254 			sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
5255 		}
5256 
5257 		mac80211_hwsim_sband_capab(sband);
5258 
5259 		hw->wiphy->bands[band] = sband;
5260 	}
5261 
5262 	/* By default all radios belong to the first group */
5263 	data->group = 1;
5264 	mutex_init(&data->mutex);
5265 
5266 	data->netgroup = hwsim_net_get_netgroup(net);
5267 	data->wmediumd = hwsim_net_get_wmediumd(net);
5268 
5269 	/* Enable frame retransmissions for lossy channels */
5270 	hw->max_rates = 4;
5271 	hw->max_rate_tries = 11;
5272 
5273 	hw->wiphy->vendor_commands = mac80211_hwsim_vendor_commands;
5274 	hw->wiphy->n_vendor_commands =
5275 		ARRAY_SIZE(mac80211_hwsim_vendor_commands);
5276 	hw->wiphy->vendor_events = mac80211_hwsim_vendor_events;
5277 	hw->wiphy->n_vendor_events = ARRAY_SIZE(mac80211_hwsim_vendor_events);
5278 
5279 	if (param->reg_strict)
5280 		hw->wiphy->regulatory_flags |= REGULATORY_STRICT_REG;
5281 	if (param->regd) {
5282 		data->regd = param->regd;
5283 		hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
5284 		wiphy_apply_custom_regulatory(hw->wiphy, param->regd);
5285 		/* give the regulatory workqueue a chance to run */
5286 		schedule_timeout_interruptible(1);
5287 	}
5288 
5289 	if (param->no_vif)
5290 		ieee80211_hw_set(hw, NO_AUTO_VIF);
5291 
5292 	wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);
5293 
5294 	for (i = 0; i < ARRAY_SIZE(data->link_data); i++) {
5295 		hrtimer_init(&data->link_data[i].beacon_timer, CLOCK_MONOTONIC,
5296 			     HRTIMER_MODE_ABS_SOFT);
5297 		data->link_data[i].beacon_timer.function =
5298 			mac80211_hwsim_beacon;
5299 		data->link_data[i].link_id = i;
5300 	}
5301 
5302 	err = ieee80211_register_hw(hw);
5303 	if (err < 0) {
5304 		pr_debug("mac80211_hwsim: ieee80211_register_hw failed (%d)\n",
5305 		       err);
5306 		goto failed_hw;
5307 	}
5308 
5309 	wiphy_dbg(hw->wiphy, "hwaddr %pM registered\n", hw->wiphy->perm_addr);
5310 
5311 	if (param->reg_alpha2) {
5312 		data->alpha2[0] = param->reg_alpha2[0];
5313 		data->alpha2[1] = param->reg_alpha2[1];
5314 		regulatory_hint(hw->wiphy, param->reg_alpha2);
5315 	}
5316 
5317 	data->debugfs = debugfs_create_dir("hwsim", hw->wiphy->debugfsdir);
5318 	debugfs_create_file("ps", 0666, data->debugfs, data, &hwsim_fops_ps);
5319 	debugfs_create_file("group", 0666, data->debugfs, data,
5320 			    &hwsim_fops_group);
5321 	debugfs_create_file("rx_rssi", 0666, data->debugfs, data,
5322 			    &hwsim_fops_rx_rssi);
5323 	if (!data->use_chanctx)
5324 		debugfs_create_file("dfs_simulate_radar", 0222,
5325 				    data->debugfs,
5326 				    data, &hwsim_simulate_radar);
5327 
5328 	if (param->pmsr_capa) {
5329 		data->pmsr_capa = *param->pmsr_capa;
5330 		hw->wiphy->pmsr_capa = &data->pmsr_capa;
5331 	}
5332 
5333 	spin_lock_bh(&hwsim_radio_lock);
5334 	err = rhashtable_insert_fast(&hwsim_radios_rht, &data->rht,
5335 				     hwsim_rht_params);
5336 	if (err < 0) {
5337 		if (info) {
5338 			GENL_SET_ERR_MSG(info, "perm addr already present");
5339 			NL_SET_BAD_ATTR(info->extack,
5340 					info->attrs[HWSIM_ATTR_PERM_ADDR]);
5341 		}
5342 		spin_unlock_bh(&hwsim_radio_lock);
5343 		goto failed_final_insert;
5344 	}
5345 
5346 	list_add_tail(&data->list, &hwsim_radios);
5347 	hwsim_radios_generation++;
5348 	spin_unlock_bh(&hwsim_radio_lock);
5349 
5350 	hwsim_mcast_new_radio(idx, info, param);
5351 
5352 	return idx;
5353 
5354 failed_final_insert:
5355 	debugfs_remove_recursive(data->debugfs);
5356 	ieee80211_unregister_hw(data->hw);
5357 failed_hw:
5358 	device_release_driver(data->dev);
5359 failed_bind:
5360 	device_unregister(data->dev);
5361 failed_drvdata:
5362 	ieee80211_free_hw(hw);
5363 failed:
5364 	return err;
5365 }
5366 
hwsim_mcast_del_radio(int id,const char * hwname,struct genl_info * info)5367 static void hwsim_mcast_del_radio(int id, const char *hwname,
5368 				  struct genl_info *info)
5369 {
5370 	struct sk_buff *skb;
5371 	void *data;
5372 	int ret;
5373 
5374 	skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
5375 	if (!skb)
5376 		return;
5377 
5378 	data = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
5379 			   HWSIM_CMD_DEL_RADIO);
5380 	if (!data)
5381 		goto error;
5382 
5383 	ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
5384 	if (ret < 0)
5385 		goto error;
5386 
5387 	ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME, strlen(hwname),
5388 		      hwname);
5389 	if (ret < 0)
5390 		goto error;
5391 
5392 	genlmsg_end(skb, data);
5393 
5394 	hwsim_mcast_config_msg(skb, info);
5395 
5396 	return;
5397 
5398 error:
5399 	nlmsg_free(skb);
5400 }
5401 
mac80211_hwsim_del_radio(struct mac80211_hwsim_data * data,const char * hwname,struct genl_info * info)5402 static void mac80211_hwsim_del_radio(struct mac80211_hwsim_data *data,
5403 				     const char *hwname,
5404 				     struct genl_info *info)
5405 {
5406 	hwsim_mcast_del_radio(data->idx, hwname, info);
5407 	debugfs_remove_recursive(data->debugfs);
5408 	ieee80211_unregister_hw(data->hw);
5409 	device_release_driver(data->dev);
5410 	device_unregister(data->dev);
5411 	ieee80211_free_hw(data->hw);
5412 }
5413 
mac80211_hwsim_get_radio(struct sk_buff * skb,struct mac80211_hwsim_data * data,u32 portid,u32 seq,struct netlink_callback * cb,int flags)5414 static int mac80211_hwsim_get_radio(struct sk_buff *skb,
5415 				    struct mac80211_hwsim_data *data,
5416 				    u32 portid, u32 seq,
5417 				    struct netlink_callback *cb, int flags)
5418 {
5419 	void *hdr;
5420 	struct hwsim_new_radio_params param = { };
5421 	int res = -EMSGSIZE;
5422 
5423 	hdr = genlmsg_put(skb, portid, seq, &hwsim_genl_family, flags,
5424 			  HWSIM_CMD_GET_RADIO);
5425 	if (!hdr)
5426 		return -EMSGSIZE;
5427 
5428 	if (cb)
5429 		genl_dump_check_consistent(cb, hdr);
5430 
5431 	if (data->alpha2[0] && data->alpha2[1])
5432 		param.reg_alpha2 = data->alpha2;
5433 
5434 	param.reg_strict = !!(data->hw->wiphy->regulatory_flags &
5435 					REGULATORY_STRICT_REG);
5436 	param.p2p_device = !!(data->hw->wiphy->interface_modes &
5437 					BIT(NL80211_IFTYPE_P2P_DEVICE));
5438 	param.use_chanctx = data->use_chanctx;
5439 	param.regd = data->regd;
5440 	param.channels = data->channels;
5441 	param.hwname = wiphy_name(data->hw->wiphy);
5442 	param.pmsr_capa = &data->pmsr_capa;
5443 
5444 	res = append_radio_msg(skb, data->idx, &param);
5445 	if (res < 0)
5446 		goto out_err;
5447 
5448 	genlmsg_end(skb, hdr);
5449 	return 0;
5450 
5451 out_err:
5452 	genlmsg_cancel(skb, hdr);
5453 	return res;
5454 }
5455 
mac80211_hwsim_free(void)5456 static void mac80211_hwsim_free(void)
5457 {
5458 	struct mac80211_hwsim_data *data;
5459 
5460 	spin_lock_bh(&hwsim_radio_lock);
5461 	while ((data = list_first_entry_or_null(&hwsim_radios,
5462 						struct mac80211_hwsim_data,
5463 						list))) {
5464 		list_del(&data->list);
5465 		spin_unlock_bh(&hwsim_radio_lock);
5466 		mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
5467 					 NULL);
5468 		spin_lock_bh(&hwsim_radio_lock);
5469 	}
5470 	spin_unlock_bh(&hwsim_radio_lock);
5471 	class_destroy(hwsim_class);
5472 }
5473 
5474 static const struct net_device_ops hwsim_netdev_ops = {
5475 	.ndo_start_xmit 	= hwsim_mon_xmit,
5476 	.ndo_set_mac_address 	= eth_mac_addr,
5477 	.ndo_validate_addr	= eth_validate_addr,
5478 };
5479 
hwsim_mon_setup(struct net_device * dev)5480 static void hwsim_mon_setup(struct net_device *dev)
5481 {
5482 	u8 addr[ETH_ALEN];
5483 
5484 	dev->netdev_ops = &hwsim_netdev_ops;
5485 	dev->needs_free_netdev = true;
5486 	ether_setup(dev);
5487 	dev->priv_flags |= IFF_NO_QUEUE;
5488 	dev->type = ARPHRD_IEEE80211_RADIOTAP;
5489 	eth_zero_addr(addr);
5490 	addr[0] = 0x12;
5491 	eth_hw_addr_set(dev, addr);
5492 }
5493 
hwsim_register_wmediumd(struct net * net,u32 portid)5494 static void hwsim_register_wmediumd(struct net *net, u32 portid)
5495 {
5496 	struct mac80211_hwsim_data *data;
5497 
5498 	hwsim_net_set_wmediumd(net, portid);
5499 
5500 	spin_lock_bh(&hwsim_radio_lock);
5501 	list_for_each_entry(data, &hwsim_radios, list) {
5502 		if (data->netgroup == hwsim_net_get_netgroup(net))
5503 			data->wmediumd = portid;
5504 	}
5505 	spin_unlock_bh(&hwsim_radio_lock);
5506 }
5507 
hwsim_tx_info_frame_received_nl(struct sk_buff * skb_2,struct genl_info * info)5508 static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
5509 					   struct genl_info *info)
5510 {
5511 
5512 	struct ieee80211_hdr *hdr;
5513 	struct mac80211_hwsim_data *data2;
5514 	struct ieee80211_tx_info *txi;
5515 	struct hwsim_tx_rate *tx_attempts;
5516 	u64 ret_skb_cookie;
5517 	struct sk_buff *skb, *tmp;
5518 	const u8 *src;
5519 	unsigned int hwsim_flags;
5520 	int i;
5521 	unsigned long flags;
5522 	bool found = false;
5523 
5524 	if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
5525 	    !info->attrs[HWSIM_ATTR_FLAGS] ||
5526 	    !info->attrs[HWSIM_ATTR_COOKIE] ||
5527 	    !info->attrs[HWSIM_ATTR_SIGNAL] ||
5528 	    !info->attrs[HWSIM_ATTR_TX_INFO])
5529 		goto out;
5530 
5531 	src = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
5532 	hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
5533 	ret_skb_cookie = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
5534 
5535 	data2 = get_hwsim_data_ref_from_addr(src);
5536 	if (!data2)
5537 		goto out;
5538 
5539 	if (!hwsim_virtio_enabled) {
5540 		if (hwsim_net_get_netgroup(genl_info_net(info)) !=
5541 		    data2->netgroup)
5542 			goto out;
5543 
5544 		if (info->snd_portid != data2->wmediumd)
5545 			goto out;
5546 	}
5547 
5548 	/* look for the skb matching the cookie passed back from user */
5549 	spin_lock_irqsave(&data2->pending.lock, flags);
5550 	skb_queue_walk_safe(&data2->pending, skb, tmp) {
5551 		uintptr_t skb_cookie;
5552 
5553 		txi = IEEE80211_SKB_CB(skb);
5554 		skb_cookie = (uintptr_t)txi->rate_driver_data[0];
5555 
5556 		if (skb_cookie == ret_skb_cookie) {
5557 			__skb_unlink(skb, &data2->pending);
5558 			found = true;
5559 			break;
5560 		}
5561 	}
5562 	spin_unlock_irqrestore(&data2->pending.lock, flags);
5563 
5564 	/* not found */
5565 	if (!found)
5566 		goto out;
5567 
5568 	/* Tx info received because the frame was broadcasted on user space,
5569 	 so we get all the necessary info: tx attempts and skb control buff */
5570 
5571 	tx_attempts = (struct hwsim_tx_rate *)nla_data(
5572 		       info->attrs[HWSIM_ATTR_TX_INFO]);
5573 
5574 	/* now send back TX status */
5575 	txi = IEEE80211_SKB_CB(skb);
5576 
5577 	ieee80211_tx_info_clear_status(txi);
5578 
5579 	for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
5580 		txi->status.rates[i].idx = tx_attempts[i].idx;
5581 		txi->status.rates[i].count = tx_attempts[i].count;
5582 	}
5583 
5584 	txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
5585 
5586 	if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
5587 	   (hwsim_flags & HWSIM_TX_STAT_ACK)) {
5588 		if (skb->len >= 16) {
5589 			hdr = (struct ieee80211_hdr *) skb->data;
5590 			mac80211_hwsim_monitor_ack(data2->channel,
5591 						   hdr->addr2);
5592 		}
5593 		txi->flags |= IEEE80211_TX_STAT_ACK;
5594 	}
5595 
5596 	if (hwsim_flags & HWSIM_TX_CTL_NO_ACK)
5597 		txi->flags |= IEEE80211_TX_STAT_NOACK_TRANSMITTED;
5598 
5599 	ieee80211_tx_status_irqsafe(data2->hw, skb);
5600 	return 0;
5601 out:
5602 	return -EINVAL;
5603 
5604 }
5605 
hwsim_cloned_frame_received_nl(struct sk_buff * skb_2,struct genl_info * info)5606 static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
5607 					  struct genl_info *info)
5608 {
5609 	struct mac80211_hwsim_data *data2;
5610 	struct ieee80211_rx_status rx_status;
5611 	struct ieee80211_hdr *hdr;
5612 	const u8 *dst;
5613 	int frame_data_len;
5614 	void *frame_data;
5615 	struct sk_buff *skb = NULL;
5616 	struct ieee80211_channel *channel = NULL;
5617 
5618 	if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
5619 	    !info->attrs[HWSIM_ATTR_FRAME] ||
5620 	    !info->attrs[HWSIM_ATTR_RX_RATE] ||
5621 	    !info->attrs[HWSIM_ATTR_SIGNAL])
5622 		goto out;
5623 
5624 	dst = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
5625 	frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
5626 	frame_data = (void *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
5627 
5628 	if (frame_data_len < sizeof(struct ieee80211_hdr_3addr) ||
5629 	    frame_data_len > IEEE80211_MAX_DATA_LEN)
5630 		goto err;
5631 
5632 	/* Allocate new skb here */
5633 	skb = alloc_skb(frame_data_len, GFP_KERNEL);
5634 	if (skb == NULL)
5635 		goto err;
5636 
5637 	/* Copy the data */
5638 	skb_put_data(skb, frame_data, frame_data_len);
5639 
5640 	data2 = get_hwsim_data_ref_from_addr(dst);
5641 	if (!data2)
5642 		goto out;
5643 
5644 	if (data2->use_chanctx) {
5645 		if (data2->tmp_chan)
5646 			channel = data2->tmp_chan;
5647 	} else {
5648 		channel = data2->channel;
5649 	}
5650 
5651 	if (!hwsim_virtio_enabled) {
5652 		if (hwsim_net_get_netgroup(genl_info_net(info)) !=
5653 		    data2->netgroup)
5654 			goto out;
5655 
5656 		if (info->snd_portid != data2->wmediumd)
5657 			goto out;
5658 	}
5659 
5660 	/* check if radio is configured properly */
5661 
5662 	if ((data2->idle && !data2->tmp_chan) || !data2->started)
5663 		goto out;
5664 
5665 	/* A frame is received from user space */
5666 	memset(&rx_status, 0, sizeof(rx_status));
5667 	if (info->attrs[HWSIM_ATTR_FREQ]) {
5668 		struct tx_iter_data iter_data = {};
5669 
5670 		/* throw away off-channel packets, but allow both the temporary
5671 		 * ("hw" scan/remain-on-channel), regular channels and links,
5672 		 * since the internal datapath also allows this
5673 		 */
5674 		rx_status.freq = nla_get_u32(info->attrs[HWSIM_ATTR_FREQ]);
5675 
5676 		iter_data.channel = ieee80211_get_channel(data2->hw->wiphy,
5677 							  rx_status.freq);
5678 		if (!iter_data.channel)
5679 			goto out;
5680 		rx_status.band = iter_data.channel->band;
5681 
5682 		mutex_lock(&data2->mutex);
5683 		if (!hwsim_chans_compat(iter_data.channel, channel)) {
5684 			ieee80211_iterate_active_interfaces_atomic(
5685 				data2->hw, IEEE80211_IFACE_ITER_NORMAL,
5686 				mac80211_hwsim_tx_iter, &iter_data);
5687 			if (!iter_data.receive) {
5688 				mutex_unlock(&data2->mutex);
5689 				goto out;
5690 			}
5691 		}
5692 		mutex_unlock(&data2->mutex);
5693 	} else if (!channel) {
5694 		goto out;
5695 	} else {
5696 		rx_status.freq = channel->center_freq;
5697 		rx_status.band = channel->band;
5698 	}
5699 
5700 	rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
5701 	if (rx_status.rate_idx >= data2->hw->wiphy->bands[rx_status.band]->n_bitrates)
5702 		goto out;
5703 	rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
5704 
5705 	hdr = (void *)skb->data;
5706 
5707 	if (ieee80211_is_beacon(hdr->frame_control) ||
5708 	    ieee80211_is_probe_resp(hdr->frame_control))
5709 		rx_status.boottime_ns = ktime_get_boottime_ns();
5710 
5711 	mac80211_hwsim_rx(data2, &rx_status, skb);
5712 
5713 	return 0;
5714 err:
5715 	pr_debug("mac80211_hwsim: error occurred in %s\n", __func__);
5716 out:
5717 	dev_kfree_skb(skb);
5718 	return -EINVAL;
5719 }
5720 
hwsim_register_received_nl(struct sk_buff * skb_2,struct genl_info * info)5721 static int hwsim_register_received_nl(struct sk_buff *skb_2,
5722 				      struct genl_info *info)
5723 {
5724 	struct net *net = genl_info_net(info);
5725 	struct mac80211_hwsim_data *data;
5726 	int chans = 1;
5727 
5728 	spin_lock_bh(&hwsim_radio_lock);
5729 	list_for_each_entry(data, &hwsim_radios, list)
5730 		chans = max(chans, data->channels);
5731 	spin_unlock_bh(&hwsim_radio_lock);
5732 
5733 	/* In the future we should revise the userspace API and allow it
5734 	 * to set a flag that it does support multi-channel, then we can
5735 	 * let this pass conditionally on the flag.
5736 	 * For current userspace, prohibit it since it won't work right.
5737 	 */
5738 	if (chans > 1)
5739 		return -EOPNOTSUPP;
5740 
5741 	if (hwsim_net_get_wmediumd(net))
5742 		return -EBUSY;
5743 
5744 	hwsim_register_wmediumd(net, info->snd_portid);
5745 
5746 	pr_debug("mac80211_hwsim: received a REGISTER, "
5747 	       "switching to wmediumd mode with pid %d\n", info->snd_portid);
5748 
5749 	return 0;
5750 }
5751 
5752 /* ensures ciphers only include ciphers listed in 'hwsim_ciphers' array */
hwsim_known_ciphers(const u32 * ciphers,int n_ciphers)5753 static bool hwsim_known_ciphers(const u32 *ciphers, int n_ciphers)
5754 {
5755 	int i;
5756 
5757 	for (i = 0; i < n_ciphers; i++) {
5758 		int j;
5759 		int found = 0;
5760 
5761 		for (j = 0; j < ARRAY_SIZE(hwsim_ciphers); j++) {
5762 			if (ciphers[i] == hwsim_ciphers[j]) {
5763 				found = 1;
5764 				break;
5765 			}
5766 		}
5767 
5768 		if (!found)
5769 			return false;
5770 	}
5771 
5772 	return true;
5773 }
5774 
parse_ftm_capa(const struct nlattr * ftm_capa,struct cfg80211_pmsr_capabilities * out,struct genl_info * info)5775 static int parse_ftm_capa(const struct nlattr *ftm_capa, struct cfg80211_pmsr_capabilities *out,
5776 			  struct genl_info *info)
5777 {
5778 	struct nlattr *tb[NL80211_PMSR_FTM_CAPA_ATTR_MAX + 1];
5779 	int ret;
5780 
5781 	ret = nla_parse_nested(tb, NL80211_PMSR_FTM_CAPA_ATTR_MAX, ftm_capa, hwsim_ftm_capa_policy,
5782 			       NULL);
5783 	if (ret) {
5784 		NL_SET_ERR_MSG_ATTR(info->extack, ftm_capa, "malformed FTM capability");
5785 		return -EINVAL;
5786 	}
5787 
5788 	out->ftm.supported = 1;
5789 	if (tb[NL80211_PMSR_FTM_CAPA_ATTR_PREAMBLES])
5790 		out->ftm.preambles = nla_get_u32(tb[NL80211_PMSR_FTM_CAPA_ATTR_PREAMBLES]);
5791 	if (tb[NL80211_PMSR_FTM_CAPA_ATTR_BANDWIDTHS])
5792 		out->ftm.bandwidths = nla_get_u32(tb[NL80211_PMSR_FTM_CAPA_ATTR_BANDWIDTHS]);
5793 	if (tb[NL80211_PMSR_FTM_CAPA_ATTR_MAX_BURSTS_EXPONENT])
5794 		out->ftm.max_bursts_exponent =
5795 			nla_get_u8(tb[NL80211_PMSR_FTM_CAPA_ATTR_MAX_BURSTS_EXPONENT]);
5796 	if (tb[NL80211_PMSR_FTM_CAPA_ATTR_MAX_FTMS_PER_BURST])
5797 		out->ftm.max_ftms_per_burst =
5798 			nla_get_u8(tb[NL80211_PMSR_FTM_CAPA_ATTR_MAX_FTMS_PER_BURST]);
5799 	out->ftm.asap = !!tb[NL80211_PMSR_FTM_CAPA_ATTR_ASAP];
5800 	out->ftm.non_asap = !!tb[NL80211_PMSR_FTM_CAPA_ATTR_NON_ASAP];
5801 	out->ftm.request_lci = !!tb[NL80211_PMSR_FTM_CAPA_ATTR_REQ_LCI];
5802 	out->ftm.request_civicloc = !!tb[NL80211_PMSR_FTM_CAPA_ATTR_REQ_CIVICLOC];
5803 	out->ftm.trigger_based = !!tb[NL80211_PMSR_FTM_CAPA_ATTR_TRIGGER_BASED];
5804 	out->ftm.non_trigger_based = !!tb[NL80211_PMSR_FTM_CAPA_ATTR_NON_TRIGGER_BASED];
5805 
5806 	return 0;
5807 }
5808 
parse_pmsr_capa(const struct nlattr * pmsr_capa,struct cfg80211_pmsr_capabilities * out,struct genl_info * info)5809 static int parse_pmsr_capa(const struct nlattr *pmsr_capa, struct cfg80211_pmsr_capabilities *out,
5810 			   struct genl_info *info)
5811 {
5812 	struct nlattr *tb[NL80211_PMSR_ATTR_MAX + 1];
5813 	struct nlattr *nla;
5814 	int size;
5815 	int ret;
5816 
5817 	ret = nla_parse_nested(tb, NL80211_PMSR_ATTR_MAX, pmsr_capa, hwsim_pmsr_capa_policy, NULL);
5818 	if (ret) {
5819 		NL_SET_ERR_MSG_ATTR(info->extack, pmsr_capa, "malformed PMSR capability");
5820 		return -EINVAL;
5821 	}
5822 
5823 	if (tb[NL80211_PMSR_ATTR_MAX_PEERS])
5824 		out->max_peers = nla_get_u32(tb[NL80211_PMSR_ATTR_MAX_PEERS]);
5825 	out->report_ap_tsf = !!tb[NL80211_PMSR_ATTR_REPORT_AP_TSF];
5826 	out->randomize_mac_addr = !!tb[NL80211_PMSR_ATTR_RANDOMIZE_MAC_ADDR];
5827 
5828 	if (!tb[NL80211_PMSR_ATTR_TYPE_CAPA]) {
5829 		NL_SET_ERR_MSG_ATTR(info->extack, tb[NL80211_PMSR_ATTR_TYPE_CAPA],
5830 				    "malformed PMSR type");
5831 		return -EINVAL;
5832 	}
5833 
5834 	nla_for_each_nested(nla, tb[NL80211_PMSR_ATTR_TYPE_CAPA], size) {
5835 		switch (nla_type(nla)) {
5836 		case NL80211_PMSR_TYPE_FTM:
5837 			parse_ftm_capa(nla, out, info);
5838 			break;
5839 		default:
5840 			NL_SET_ERR_MSG_ATTR(info->extack, nla, "unsupported measurement type");
5841 			return -EINVAL;
5842 		}
5843 	}
5844 
5845 	return 0;
5846 }
5847 
hwsim_new_radio_nl(struct sk_buff * msg,struct genl_info * info)5848 static int hwsim_new_radio_nl(struct sk_buff *msg, struct genl_info *info)
5849 {
5850 	struct hwsim_new_radio_params param = { 0 };
5851 	const char *hwname = NULL;
5852 	int ret;
5853 
5854 	param.reg_strict = info->attrs[HWSIM_ATTR_REG_STRICT_REG];
5855 	param.p2p_device = info->attrs[HWSIM_ATTR_SUPPORT_P2P_DEVICE];
5856 	param.channels = channels;
5857 	param.destroy_on_close =
5858 		info->attrs[HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE];
5859 
5860 	if (info->attrs[HWSIM_ATTR_CHANNELS])
5861 		param.channels = nla_get_u32(info->attrs[HWSIM_ATTR_CHANNELS]);
5862 
5863 	if (param.channels < 1) {
5864 		GENL_SET_ERR_MSG(info, "must have at least one channel");
5865 		return -EINVAL;
5866 	}
5867 
5868 	if (info->attrs[HWSIM_ATTR_NO_VIF])
5869 		param.no_vif = true;
5870 
5871 	if (info->attrs[HWSIM_ATTR_USE_CHANCTX])
5872 		param.use_chanctx = true;
5873 	else
5874 		param.use_chanctx = (param.channels > 1);
5875 
5876 	if (info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2])
5877 		param.reg_alpha2 =
5878 			nla_data(info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2]);
5879 
5880 	if (info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]) {
5881 		u32 idx = nla_get_u32(info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]);
5882 
5883 		if (idx >= ARRAY_SIZE(hwsim_world_regdom_custom))
5884 			return -EINVAL;
5885 
5886 		idx = array_index_nospec(idx,
5887 					 ARRAY_SIZE(hwsim_world_regdom_custom));
5888 		param.regd = hwsim_world_regdom_custom[idx];
5889 	}
5890 
5891 	if (info->attrs[HWSIM_ATTR_PERM_ADDR]) {
5892 		if (!is_valid_ether_addr(
5893 				nla_data(info->attrs[HWSIM_ATTR_PERM_ADDR]))) {
5894 			GENL_SET_ERR_MSG(info,"MAC is no valid source addr");
5895 			NL_SET_BAD_ATTR(info->extack,
5896 					info->attrs[HWSIM_ATTR_PERM_ADDR]);
5897 			return -EINVAL;
5898 		}
5899 
5900 		param.perm_addr = nla_data(info->attrs[HWSIM_ATTR_PERM_ADDR]);
5901 	}
5902 
5903 	if (info->attrs[HWSIM_ATTR_IFTYPE_SUPPORT]) {
5904 		param.iftypes =
5905 			nla_get_u32(info->attrs[HWSIM_ATTR_IFTYPE_SUPPORT]);
5906 
5907 		if (param.iftypes & ~HWSIM_IFTYPE_SUPPORT_MASK) {
5908 			NL_SET_ERR_MSG_ATTR(info->extack,
5909 					    info->attrs[HWSIM_ATTR_IFTYPE_SUPPORT],
5910 					    "cannot support more iftypes than kernel");
5911 			return -EINVAL;
5912 		}
5913 	} else {
5914 		param.iftypes = HWSIM_IFTYPE_SUPPORT_MASK;
5915 	}
5916 
5917 	/* ensure both flag and iftype support is honored */
5918 	if (param.p2p_device ||
5919 	    param.iftypes & BIT(NL80211_IFTYPE_P2P_DEVICE)) {
5920 		param.iftypes |= BIT(NL80211_IFTYPE_P2P_DEVICE);
5921 		param.p2p_device = true;
5922 	}
5923 
5924 	if (info->attrs[HWSIM_ATTR_CIPHER_SUPPORT]) {
5925 		u32 len = nla_len(info->attrs[HWSIM_ATTR_CIPHER_SUPPORT]);
5926 
5927 		param.ciphers =
5928 			nla_data(info->attrs[HWSIM_ATTR_CIPHER_SUPPORT]);
5929 
5930 		if (len % sizeof(u32)) {
5931 			NL_SET_ERR_MSG_ATTR(info->extack,
5932 					    info->attrs[HWSIM_ATTR_CIPHER_SUPPORT],
5933 					    "bad cipher list length");
5934 			return -EINVAL;
5935 		}
5936 
5937 		param.n_ciphers = len / sizeof(u32);
5938 
5939 		if (param.n_ciphers > ARRAY_SIZE(hwsim_ciphers)) {
5940 			NL_SET_ERR_MSG_ATTR(info->extack,
5941 					    info->attrs[HWSIM_ATTR_CIPHER_SUPPORT],
5942 					    "too many ciphers specified");
5943 			return -EINVAL;
5944 		}
5945 
5946 		if (!hwsim_known_ciphers(param.ciphers, param.n_ciphers)) {
5947 			NL_SET_ERR_MSG_ATTR(info->extack,
5948 					    info->attrs[HWSIM_ATTR_CIPHER_SUPPORT],
5949 					    "unsupported ciphers specified");
5950 			return -EINVAL;
5951 		}
5952 	}
5953 
5954 	param.mlo = info->attrs[HWSIM_ATTR_MLO_SUPPORT];
5955 
5956 	if (param.mlo)
5957 		param.use_chanctx = true;
5958 
5959 	if (info->attrs[HWSIM_ATTR_RADIO_NAME]) {
5960 		hwname = kstrndup((char *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]),
5961 				  nla_len(info->attrs[HWSIM_ATTR_RADIO_NAME]),
5962 				  GFP_KERNEL);
5963 		if (!hwname)
5964 			return -ENOMEM;
5965 		param.hwname = hwname;
5966 	}
5967 
5968 	if (info->attrs[HWSIM_ATTR_PMSR_SUPPORT]) {
5969 		struct cfg80211_pmsr_capabilities *pmsr_capa;
5970 
5971 		pmsr_capa = kmalloc(sizeof(*pmsr_capa), GFP_KERNEL);
5972 		if (!pmsr_capa) {
5973 			ret = -ENOMEM;
5974 			goto out_free;
5975 		}
5976 		param.pmsr_capa = pmsr_capa;
5977 
5978 		ret = parse_pmsr_capa(info->attrs[HWSIM_ATTR_PMSR_SUPPORT], pmsr_capa, info);
5979 		if (ret)
5980 			goto out_free;
5981 	}
5982 
5983 	ret = mac80211_hwsim_new_radio(info, &param);
5984 
5985 out_free:
5986 	kfree(hwname);
5987 	kfree(param.pmsr_capa);
5988 	return ret;
5989 }
5990 
hwsim_del_radio_nl(struct sk_buff * msg,struct genl_info * info)5991 static int hwsim_del_radio_nl(struct sk_buff *msg, struct genl_info *info)
5992 {
5993 	struct mac80211_hwsim_data *data;
5994 	s64 idx = -1;
5995 	const char *hwname = NULL;
5996 
5997 	if (info->attrs[HWSIM_ATTR_RADIO_ID]) {
5998 		idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
5999 	} else if (info->attrs[HWSIM_ATTR_RADIO_NAME]) {
6000 		hwname = kstrndup((char *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]),
6001 				  nla_len(info->attrs[HWSIM_ATTR_RADIO_NAME]),
6002 				  GFP_KERNEL);
6003 		if (!hwname)
6004 			return -ENOMEM;
6005 	} else
6006 		return -EINVAL;
6007 
6008 	spin_lock_bh(&hwsim_radio_lock);
6009 	list_for_each_entry(data, &hwsim_radios, list) {
6010 		if (idx >= 0) {
6011 			if (data->idx != idx)
6012 				continue;
6013 		} else {
6014 			if (!hwname ||
6015 			    strcmp(hwname, wiphy_name(data->hw->wiphy)))
6016 				continue;
6017 		}
6018 
6019 		if (!net_eq(wiphy_net(data->hw->wiphy), genl_info_net(info)))
6020 			continue;
6021 
6022 		list_del(&data->list);
6023 		rhashtable_remove_fast(&hwsim_radios_rht, &data->rht,
6024 				       hwsim_rht_params);
6025 		hwsim_radios_generation++;
6026 		spin_unlock_bh(&hwsim_radio_lock);
6027 		mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
6028 					 info);
6029 		kfree(hwname);
6030 		return 0;
6031 	}
6032 	spin_unlock_bh(&hwsim_radio_lock);
6033 
6034 	kfree(hwname);
6035 	return -ENODEV;
6036 }
6037 
hwsim_get_radio_nl(struct sk_buff * msg,struct genl_info * info)6038 static int hwsim_get_radio_nl(struct sk_buff *msg, struct genl_info *info)
6039 {
6040 	struct mac80211_hwsim_data *data;
6041 	struct sk_buff *skb;
6042 	int idx, res = -ENODEV;
6043 
6044 	if (!info->attrs[HWSIM_ATTR_RADIO_ID])
6045 		return -EINVAL;
6046 	idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
6047 
6048 	spin_lock_bh(&hwsim_radio_lock);
6049 	list_for_each_entry(data, &hwsim_radios, list) {
6050 		if (data->idx != idx)
6051 			continue;
6052 
6053 		if (!net_eq(wiphy_net(data->hw->wiphy), genl_info_net(info)))
6054 			continue;
6055 
6056 		skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6057 		if (!skb) {
6058 			res = -ENOMEM;
6059 			goto out_err;
6060 		}
6061 
6062 		res = mac80211_hwsim_get_radio(skb, data, info->snd_portid,
6063 					       info->snd_seq, NULL, 0);
6064 		if (res < 0) {
6065 			nlmsg_free(skb);
6066 			goto out_err;
6067 		}
6068 
6069 		res = genlmsg_reply(skb, info);
6070 		break;
6071 	}
6072 
6073 out_err:
6074 	spin_unlock_bh(&hwsim_radio_lock);
6075 
6076 	return res;
6077 }
6078 
hwsim_dump_radio_nl(struct sk_buff * skb,struct netlink_callback * cb)6079 static int hwsim_dump_radio_nl(struct sk_buff *skb,
6080 			       struct netlink_callback *cb)
6081 {
6082 	int last_idx = cb->args[0] - 1;
6083 	struct mac80211_hwsim_data *data = NULL;
6084 	int res = 0;
6085 	void *hdr;
6086 
6087 	spin_lock_bh(&hwsim_radio_lock);
6088 	cb->seq = hwsim_radios_generation;
6089 
6090 	if (last_idx >= hwsim_radio_idx-1)
6091 		goto done;
6092 
6093 	list_for_each_entry(data, &hwsim_radios, list) {
6094 		if (data->idx <= last_idx)
6095 			continue;
6096 
6097 		if (!net_eq(wiphy_net(data->hw->wiphy), sock_net(skb->sk)))
6098 			continue;
6099 
6100 		res = mac80211_hwsim_get_radio(skb, data,
6101 					       NETLINK_CB(cb->skb).portid,
6102 					       cb->nlh->nlmsg_seq, cb,
6103 					       NLM_F_MULTI);
6104 		if (res < 0)
6105 			break;
6106 
6107 		last_idx = data->idx;
6108 	}
6109 
6110 	cb->args[0] = last_idx + 1;
6111 
6112 	/* list changed, but no new element sent, set interrupted flag */
6113 	if (skb->len == 0 && cb->prev_seq && cb->seq != cb->prev_seq) {
6114 		hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid,
6115 				  cb->nlh->nlmsg_seq, &hwsim_genl_family,
6116 				  NLM_F_MULTI, HWSIM_CMD_GET_RADIO);
6117 		if (hdr) {
6118 			genl_dump_check_consistent(cb, hdr);
6119 			genlmsg_end(skb, hdr);
6120 		} else {
6121 			res = -EMSGSIZE;
6122 		}
6123 	}
6124 
6125 done:
6126 	spin_unlock_bh(&hwsim_radio_lock);
6127 	return res ?: skb->len;
6128 }
6129 
6130 /* Generic Netlink operations array */
6131 static const struct genl_small_ops hwsim_ops[] = {
6132 	{
6133 		.cmd = HWSIM_CMD_REGISTER,
6134 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
6135 		.doit = hwsim_register_received_nl,
6136 		.flags = GENL_UNS_ADMIN_PERM,
6137 	},
6138 	{
6139 		.cmd = HWSIM_CMD_FRAME,
6140 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
6141 		.doit = hwsim_cloned_frame_received_nl,
6142 	},
6143 	{
6144 		.cmd = HWSIM_CMD_TX_INFO_FRAME,
6145 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
6146 		.doit = hwsim_tx_info_frame_received_nl,
6147 	},
6148 	{
6149 		.cmd = HWSIM_CMD_NEW_RADIO,
6150 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
6151 		.doit = hwsim_new_radio_nl,
6152 		.flags = GENL_UNS_ADMIN_PERM,
6153 	},
6154 	{
6155 		.cmd = HWSIM_CMD_DEL_RADIO,
6156 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
6157 		.doit = hwsim_del_radio_nl,
6158 		.flags = GENL_UNS_ADMIN_PERM,
6159 	},
6160 	{
6161 		.cmd = HWSIM_CMD_GET_RADIO,
6162 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
6163 		.doit = hwsim_get_radio_nl,
6164 		.dumpit = hwsim_dump_radio_nl,
6165 	},
6166 	{
6167 		.cmd = HWSIM_CMD_REPORT_PMSR,
6168 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
6169 		.doit = hwsim_pmsr_report_nl,
6170 	},
6171 };
6172 
6173 static struct genl_family hwsim_genl_family __ro_after_init = {
6174 	.name = "MAC80211_HWSIM",
6175 	.version = 1,
6176 	.maxattr = HWSIM_ATTR_MAX,
6177 	.policy = hwsim_genl_policy,
6178 	.netnsok = true,
6179 	.module = THIS_MODULE,
6180 	.small_ops = hwsim_ops,
6181 	.n_small_ops = ARRAY_SIZE(hwsim_ops),
6182 	.resv_start_op = HWSIM_CMD_REPORT_PMSR + 1, // match with __HWSIM_CMD_MAX
6183 	.mcgrps = hwsim_mcgrps,
6184 	.n_mcgrps = ARRAY_SIZE(hwsim_mcgrps),
6185 };
6186 
remove_user_radios(u32 portid)6187 static void remove_user_radios(u32 portid)
6188 {
6189 	struct mac80211_hwsim_data *entry, *tmp;
6190 	LIST_HEAD(list);
6191 
6192 	spin_lock_bh(&hwsim_radio_lock);
6193 	list_for_each_entry_safe(entry, tmp, &hwsim_radios, list) {
6194 		if (entry->destroy_on_close && entry->portid == portid) {
6195 			list_move(&entry->list, &list);
6196 			rhashtable_remove_fast(&hwsim_radios_rht, &entry->rht,
6197 					       hwsim_rht_params);
6198 			hwsim_radios_generation++;
6199 		}
6200 	}
6201 	spin_unlock_bh(&hwsim_radio_lock);
6202 
6203 	list_for_each_entry_safe(entry, tmp, &list, list) {
6204 		list_del(&entry->list);
6205 		mac80211_hwsim_del_radio(entry, wiphy_name(entry->hw->wiphy),
6206 					 NULL);
6207 	}
6208 }
6209 
mac80211_hwsim_netlink_notify(struct notifier_block * nb,unsigned long state,void * _notify)6210 static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
6211 					 unsigned long state,
6212 					 void *_notify)
6213 {
6214 	struct netlink_notify *notify = _notify;
6215 
6216 	if (state != NETLINK_URELEASE)
6217 		return NOTIFY_DONE;
6218 
6219 	remove_user_radios(notify->portid);
6220 
6221 	if (notify->portid == hwsim_net_get_wmediumd(notify->net)) {
6222 		printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
6223 		       " socket, switching to perfect channel medium\n");
6224 		hwsim_register_wmediumd(notify->net, 0);
6225 	}
6226 	return NOTIFY_DONE;
6227 
6228 }
6229 
6230 static struct notifier_block hwsim_netlink_notifier = {
6231 	.notifier_call = mac80211_hwsim_netlink_notify,
6232 };
6233 
hwsim_init_netlink(void)6234 static int __init hwsim_init_netlink(void)
6235 {
6236 	int rc;
6237 
6238 	printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
6239 
6240 	rc = genl_register_family(&hwsim_genl_family);
6241 	if (rc)
6242 		goto failure;
6243 
6244 	rc = netlink_register_notifier(&hwsim_netlink_notifier);
6245 	if (rc) {
6246 		genl_unregister_family(&hwsim_genl_family);
6247 		goto failure;
6248 	}
6249 
6250 	return 0;
6251 
6252 failure:
6253 	pr_debug("mac80211_hwsim: error occurred in %s\n", __func__);
6254 	return -EINVAL;
6255 }
6256 
hwsim_init_net(struct net * net)6257 static __net_init int hwsim_init_net(struct net *net)
6258 {
6259 	return hwsim_net_set_netgroup(net);
6260 }
6261 
hwsim_exit_net(struct net * net)6262 static void __net_exit hwsim_exit_net(struct net *net)
6263 {
6264 	struct mac80211_hwsim_data *data, *tmp;
6265 	LIST_HEAD(list);
6266 
6267 	spin_lock_bh(&hwsim_radio_lock);
6268 	list_for_each_entry_safe(data, tmp, &hwsim_radios, list) {
6269 		if (!net_eq(wiphy_net(data->hw->wiphy), net))
6270 			continue;
6271 
6272 		/* Radios created in init_net are returned to init_net. */
6273 		if (data->netgroup == hwsim_net_get_netgroup(&init_net))
6274 			continue;
6275 
6276 		list_move(&data->list, &list);
6277 		rhashtable_remove_fast(&hwsim_radios_rht, &data->rht,
6278 				       hwsim_rht_params);
6279 		hwsim_radios_generation++;
6280 	}
6281 	spin_unlock_bh(&hwsim_radio_lock);
6282 
6283 	list_for_each_entry_safe(data, tmp, &list, list) {
6284 		list_del(&data->list);
6285 		mac80211_hwsim_del_radio(data,
6286 					 wiphy_name(data->hw->wiphy),
6287 					 NULL);
6288 	}
6289 
6290 	ida_free(&hwsim_netgroup_ida, hwsim_net_get_netgroup(net));
6291 }
6292 
6293 static struct pernet_operations hwsim_net_ops = {
6294 	.init = hwsim_init_net,
6295 	.exit = hwsim_exit_net,
6296 	.id   = &hwsim_net_id,
6297 	.size = sizeof(struct hwsim_net),
6298 };
6299 
hwsim_exit_netlink(void)6300 static void hwsim_exit_netlink(void)
6301 {
6302 	/* unregister the notifier */
6303 	netlink_unregister_notifier(&hwsim_netlink_notifier);
6304 	/* unregister the family */
6305 	genl_unregister_family(&hwsim_genl_family);
6306 }
6307 
6308 #if IS_REACHABLE(CONFIG_VIRTIO)
hwsim_virtio_tx_done(struct virtqueue * vq)6309 static void hwsim_virtio_tx_done(struct virtqueue *vq)
6310 {
6311 	unsigned int len;
6312 	struct sk_buff *skb;
6313 	unsigned long flags;
6314 
6315 	spin_lock_irqsave(&hwsim_virtio_lock, flags);
6316 	while ((skb = virtqueue_get_buf(vq, &len)))
6317 		dev_kfree_skb_irq(skb);
6318 	spin_unlock_irqrestore(&hwsim_virtio_lock, flags);
6319 }
6320 
hwsim_virtio_handle_cmd(struct sk_buff * skb)6321 static int hwsim_virtio_handle_cmd(struct sk_buff *skb)
6322 {
6323 	struct nlmsghdr *nlh;
6324 	struct genlmsghdr *gnlh;
6325 	struct nlattr *tb[HWSIM_ATTR_MAX + 1];
6326 	struct genl_info info = {};
6327 	int err;
6328 
6329 	nlh = nlmsg_hdr(skb);
6330 	gnlh = nlmsg_data(nlh);
6331 
6332 	if (skb->len < nlh->nlmsg_len)
6333 		return -EINVAL;
6334 
6335 	err = genlmsg_parse(nlh, &hwsim_genl_family, tb, HWSIM_ATTR_MAX,
6336 			    hwsim_genl_policy, NULL);
6337 	if (err) {
6338 		pr_err_ratelimited("hwsim: genlmsg_parse returned %d\n", err);
6339 		return err;
6340 	}
6341 
6342 	info.attrs = tb;
6343 
6344 	switch (gnlh->cmd) {
6345 	case HWSIM_CMD_FRAME:
6346 		hwsim_cloned_frame_received_nl(skb, &info);
6347 		break;
6348 	case HWSIM_CMD_TX_INFO_FRAME:
6349 		hwsim_tx_info_frame_received_nl(skb, &info);
6350 		break;
6351 	case HWSIM_CMD_REPORT_PMSR:
6352 		hwsim_pmsr_report_nl(skb, &info);
6353 		break;
6354 	default:
6355 		pr_err_ratelimited("hwsim: invalid cmd: %d\n", gnlh->cmd);
6356 		return -EPROTO;
6357 	}
6358 	return 0;
6359 }
6360 
hwsim_virtio_rx_work(struct work_struct * work)6361 static void hwsim_virtio_rx_work(struct work_struct *work)
6362 {
6363 	struct virtqueue *vq;
6364 	unsigned int len;
6365 	struct sk_buff *skb;
6366 	struct scatterlist sg[1];
6367 	int err;
6368 	unsigned long flags;
6369 
6370 	spin_lock_irqsave(&hwsim_virtio_lock, flags);
6371 	if (!hwsim_virtio_enabled)
6372 		goto out_unlock;
6373 
6374 	skb = virtqueue_get_buf(hwsim_vqs[HWSIM_VQ_RX], &len);
6375 	if (!skb)
6376 		goto out_unlock;
6377 	spin_unlock_irqrestore(&hwsim_virtio_lock, flags);
6378 
6379 	skb->data = skb->head;
6380 	skb_reset_tail_pointer(skb);
6381 	skb_put(skb, len);
6382 	hwsim_virtio_handle_cmd(skb);
6383 
6384 	spin_lock_irqsave(&hwsim_virtio_lock, flags);
6385 	if (!hwsim_virtio_enabled) {
6386 		dev_kfree_skb_irq(skb);
6387 		goto out_unlock;
6388 	}
6389 	vq = hwsim_vqs[HWSIM_VQ_RX];
6390 	sg_init_one(sg, skb->head, skb_end_offset(skb));
6391 	err = virtqueue_add_inbuf(vq, sg, 1, skb, GFP_ATOMIC);
6392 	if (WARN(err, "virtqueue_add_inbuf returned %d\n", err))
6393 		dev_kfree_skb_irq(skb);
6394 	else
6395 		virtqueue_kick(vq);
6396 	schedule_work(&hwsim_virtio_rx);
6397 
6398 out_unlock:
6399 	spin_unlock_irqrestore(&hwsim_virtio_lock, flags);
6400 }
6401 
hwsim_virtio_rx_done(struct virtqueue * vq)6402 static void hwsim_virtio_rx_done(struct virtqueue *vq)
6403 {
6404 	schedule_work(&hwsim_virtio_rx);
6405 }
6406 
init_vqs(struct virtio_device * vdev)6407 static int init_vqs(struct virtio_device *vdev)
6408 {
6409 	vq_callback_t *callbacks[HWSIM_NUM_VQS] = {
6410 		[HWSIM_VQ_TX] = hwsim_virtio_tx_done,
6411 		[HWSIM_VQ_RX] = hwsim_virtio_rx_done,
6412 	};
6413 	const char *names[HWSIM_NUM_VQS] = {
6414 		[HWSIM_VQ_TX] = "tx",
6415 		[HWSIM_VQ_RX] = "rx",
6416 	};
6417 
6418 	return virtio_find_vqs(vdev, HWSIM_NUM_VQS,
6419 			       hwsim_vqs, callbacks, names, NULL);
6420 }
6421 
fill_vq(struct virtqueue * vq)6422 static int fill_vq(struct virtqueue *vq)
6423 {
6424 	int i, err;
6425 	struct sk_buff *skb;
6426 	struct scatterlist sg[1];
6427 
6428 	for (i = 0; i < virtqueue_get_vring_size(vq); i++) {
6429 		skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
6430 		if (!skb)
6431 			return -ENOMEM;
6432 
6433 		sg_init_one(sg, skb->head, skb_end_offset(skb));
6434 		err = virtqueue_add_inbuf(vq, sg, 1, skb, GFP_KERNEL);
6435 		if (err) {
6436 			nlmsg_free(skb);
6437 			return err;
6438 		}
6439 	}
6440 	virtqueue_kick(vq);
6441 	return 0;
6442 }
6443 
remove_vqs(struct virtio_device * vdev)6444 static void remove_vqs(struct virtio_device *vdev)
6445 {
6446 	int i;
6447 
6448 	virtio_reset_device(vdev);
6449 
6450 	for (i = 0; i < ARRAY_SIZE(hwsim_vqs); i++) {
6451 		struct virtqueue *vq = hwsim_vqs[i];
6452 		struct sk_buff *skb;
6453 
6454 		while ((skb = virtqueue_detach_unused_buf(vq)))
6455 			nlmsg_free(skb);
6456 	}
6457 
6458 	vdev->config->del_vqs(vdev);
6459 }
6460 
hwsim_virtio_probe(struct virtio_device * vdev)6461 static int hwsim_virtio_probe(struct virtio_device *vdev)
6462 {
6463 	int err;
6464 	unsigned long flags;
6465 
6466 	spin_lock_irqsave(&hwsim_virtio_lock, flags);
6467 	if (hwsim_virtio_enabled) {
6468 		spin_unlock_irqrestore(&hwsim_virtio_lock, flags);
6469 		return -EEXIST;
6470 	}
6471 	spin_unlock_irqrestore(&hwsim_virtio_lock, flags);
6472 
6473 	err = init_vqs(vdev);
6474 	if (err)
6475 		return err;
6476 
6477 	virtio_device_ready(vdev);
6478 
6479 	err = fill_vq(hwsim_vqs[HWSIM_VQ_RX]);
6480 	if (err)
6481 		goto out_remove;
6482 
6483 	spin_lock_irqsave(&hwsim_virtio_lock, flags);
6484 	hwsim_virtio_enabled = true;
6485 	spin_unlock_irqrestore(&hwsim_virtio_lock, flags);
6486 
6487 	schedule_work(&hwsim_virtio_rx);
6488 	return 0;
6489 
6490 out_remove:
6491 	remove_vqs(vdev);
6492 	return err;
6493 }
6494 
hwsim_virtio_remove(struct virtio_device * vdev)6495 static void hwsim_virtio_remove(struct virtio_device *vdev)
6496 {
6497 	hwsim_virtio_enabled = false;
6498 
6499 	cancel_work_sync(&hwsim_virtio_rx);
6500 
6501 	remove_vqs(vdev);
6502 }
6503 
6504 /* MAC80211_HWSIM virtio device id table */
6505 static const struct virtio_device_id id_table[] = {
6506 	{ VIRTIO_ID_MAC80211_HWSIM, VIRTIO_DEV_ANY_ID },
6507 	{ 0 }
6508 };
6509 MODULE_DEVICE_TABLE(virtio, id_table);
6510 
6511 static struct virtio_driver virtio_hwsim = {
6512 	.driver.name = KBUILD_MODNAME,
6513 	.driver.owner = THIS_MODULE,
6514 	.id_table = id_table,
6515 	.probe = hwsim_virtio_probe,
6516 	.remove = hwsim_virtio_remove,
6517 };
6518 
hwsim_register_virtio_driver(void)6519 static int hwsim_register_virtio_driver(void)
6520 {
6521 	return register_virtio_driver(&virtio_hwsim);
6522 }
6523 
hwsim_unregister_virtio_driver(void)6524 static void hwsim_unregister_virtio_driver(void)
6525 {
6526 	unregister_virtio_driver(&virtio_hwsim);
6527 }
6528 #else
hwsim_register_virtio_driver(void)6529 static inline int hwsim_register_virtio_driver(void)
6530 {
6531 	return 0;
6532 }
6533 
hwsim_unregister_virtio_driver(void)6534 static inline void hwsim_unregister_virtio_driver(void)
6535 {
6536 }
6537 #endif
6538 
init_mac80211_hwsim(void)6539 static int __init init_mac80211_hwsim(void)
6540 {
6541 	int i, err;
6542 
6543 	if (radios < 0 || radios > 100)
6544 		return -EINVAL;
6545 
6546 	if (channels < 1)
6547 		return -EINVAL;
6548 
6549 	err = rhashtable_init(&hwsim_radios_rht, &hwsim_rht_params);
6550 	if (err)
6551 		return err;
6552 
6553 	err = register_pernet_device(&hwsim_net_ops);
6554 	if (err)
6555 		goto out_free_rht;
6556 
6557 	err = platform_driver_register(&mac80211_hwsim_driver);
6558 	if (err)
6559 		goto out_unregister_pernet;
6560 
6561 	err = hwsim_init_netlink();
6562 	if (err)
6563 		goto out_unregister_driver;
6564 
6565 	err = hwsim_register_virtio_driver();
6566 	if (err)
6567 		goto out_exit_netlink;
6568 
6569 	hwsim_class = class_create("mac80211_hwsim");
6570 	if (IS_ERR(hwsim_class)) {
6571 		err = PTR_ERR(hwsim_class);
6572 		goto out_exit_virtio;
6573 	}
6574 
6575 	hwsim_init_s1g_channels(hwsim_channels_s1g);
6576 
6577 	for (i = 0; i < radios; i++) {
6578 		struct hwsim_new_radio_params param = { 0 };
6579 
6580 		param.channels = channels;
6581 
6582 		switch (regtest) {
6583 		case HWSIM_REGTEST_DIFF_COUNTRY:
6584 			if (i < ARRAY_SIZE(hwsim_alpha2s))
6585 				param.reg_alpha2 = hwsim_alpha2s[i];
6586 			break;
6587 		case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
6588 			if (!i)
6589 				param.reg_alpha2 = hwsim_alpha2s[0];
6590 			break;
6591 		case HWSIM_REGTEST_STRICT_ALL:
6592 			param.reg_strict = true;
6593 			fallthrough;
6594 		case HWSIM_REGTEST_DRIVER_REG_ALL:
6595 			param.reg_alpha2 = hwsim_alpha2s[0];
6596 			break;
6597 		case HWSIM_REGTEST_WORLD_ROAM:
6598 			if (i == 0)
6599 				param.regd = &hwsim_world_regdom_custom_01;
6600 			break;
6601 		case HWSIM_REGTEST_CUSTOM_WORLD:
6602 			param.regd = &hwsim_world_regdom_custom_01;
6603 			break;
6604 		case HWSIM_REGTEST_CUSTOM_WORLD_2:
6605 			if (i == 0)
6606 				param.regd = &hwsim_world_regdom_custom_01;
6607 			else if (i == 1)
6608 				param.regd = &hwsim_world_regdom_custom_02;
6609 			break;
6610 		case HWSIM_REGTEST_STRICT_FOLLOW:
6611 			if (i == 0) {
6612 				param.reg_strict = true;
6613 				param.reg_alpha2 = hwsim_alpha2s[0];
6614 			}
6615 			break;
6616 		case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
6617 			if (i == 0) {
6618 				param.reg_strict = true;
6619 				param.reg_alpha2 = hwsim_alpha2s[0];
6620 			} else if (i == 1) {
6621 				param.reg_alpha2 = hwsim_alpha2s[1];
6622 			}
6623 			break;
6624 		case HWSIM_REGTEST_ALL:
6625 			switch (i) {
6626 			case 0:
6627 				param.regd = &hwsim_world_regdom_custom_01;
6628 				break;
6629 			case 1:
6630 				param.regd = &hwsim_world_regdom_custom_02;
6631 				break;
6632 			case 2:
6633 				param.reg_alpha2 = hwsim_alpha2s[0];
6634 				break;
6635 			case 3:
6636 				param.reg_alpha2 = hwsim_alpha2s[1];
6637 				break;
6638 			case 4:
6639 				param.reg_strict = true;
6640 				param.reg_alpha2 = hwsim_alpha2s[2];
6641 				break;
6642 			}
6643 			break;
6644 		default:
6645 			break;
6646 		}
6647 
6648 		param.p2p_device = support_p2p_device;
6649 		param.mlo = mlo;
6650 		param.use_chanctx = channels > 1 || mlo;
6651 		param.iftypes = HWSIM_IFTYPE_SUPPORT_MASK;
6652 		if (param.p2p_device)
6653 			param.iftypes |= BIT(NL80211_IFTYPE_P2P_DEVICE);
6654 
6655 		err = mac80211_hwsim_new_radio(NULL, &param);
6656 		if (err < 0)
6657 			goto out_free_radios;
6658 	}
6659 
6660 	hwsim_mon = alloc_netdev(0, "hwsim%d", NET_NAME_UNKNOWN,
6661 				 hwsim_mon_setup);
6662 	if (hwsim_mon == NULL) {
6663 		err = -ENOMEM;
6664 		goto out_free_radios;
6665 	}
6666 
6667 	rtnl_lock();
6668 	err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
6669 	if (err < 0) {
6670 		rtnl_unlock();
6671 		goto out_free_mon;
6672 	}
6673 
6674 	err = register_netdevice(hwsim_mon);
6675 	if (err < 0) {
6676 		rtnl_unlock();
6677 		goto out_free_mon;
6678 	}
6679 	rtnl_unlock();
6680 
6681 	return 0;
6682 
6683 out_free_mon:
6684 	free_netdev(hwsim_mon);
6685 out_free_radios:
6686 	mac80211_hwsim_free();
6687 out_exit_virtio:
6688 	hwsim_unregister_virtio_driver();
6689 out_exit_netlink:
6690 	hwsim_exit_netlink();
6691 out_unregister_driver:
6692 	platform_driver_unregister(&mac80211_hwsim_driver);
6693 out_unregister_pernet:
6694 	unregister_pernet_device(&hwsim_net_ops);
6695 out_free_rht:
6696 	rhashtable_destroy(&hwsim_radios_rht);
6697 	return err;
6698 }
6699 module_init(init_mac80211_hwsim);
6700 
exit_mac80211_hwsim(void)6701 static void __exit exit_mac80211_hwsim(void)
6702 {
6703 	pr_debug("mac80211_hwsim: unregister radios\n");
6704 
6705 	hwsim_unregister_virtio_driver();
6706 	hwsim_exit_netlink();
6707 
6708 	mac80211_hwsim_free();
6709 
6710 	rhashtable_destroy(&hwsim_radios_rht);
6711 	unregister_netdev(hwsim_mon);
6712 	platform_driver_unregister(&mac80211_hwsim_driver);
6713 	unregister_pernet_device(&hwsim_net_ops);
6714 }
6715 module_exit(exit_mac80211_hwsim);
6716