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treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / drivers / net / wireless / mac80211_hwsim.c
blob03738107fd10e09fc50de97d675487cdc84097ae
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 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 "mac80211_hwsim.h"
37
38 #define WARN_QUEUE 100
39 #define MAX_QUEUE 200
40
41 MODULE_AUTHOR("Jouni Malinen");
42 MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
43 MODULE_LICENSE("GPL");
44
45 static int radios = 2;
46 module_param(radios, int, 0444);
47 MODULE_PARM_DESC(radios, "Number of simulated radios");
48
49 static int channels = 1;
50 module_param(channels, int, 0444);
51 MODULE_PARM_DESC(channels, "Number of concurrent channels");
52
53 static bool paged_rx = false;
54 module_param(paged_rx, bool, 0644);
55 MODULE_PARM_DESC(paged_rx, "Use paged SKBs for RX instead of linear ones");
56
57 static bool rctbl = false;
58 module_param(rctbl, bool, 0444);
59 MODULE_PARM_DESC(rctbl, "Handle rate control table");
60
61 static bool support_p2p_device = true;
62 module_param(support_p2p_device, bool, 0444);
63 MODULE_PARM_DESC(support_p2p_device, "Support P2P-Device interface type");
64
65 /**
66 * enum hwsim_regtest - the type of regulatory tests we offer
67 *
68 * These are the different values you can use for the regtest
69 * module parameter. This is useful to help test world roaming
70 * and the driver regulatory_hint() call and combinations of these.
71 * If you want to do specific alpha2 regulatory domain tests simply
72 * use the userspace regulatory request as that will be respected as
73 * well without the need of this module parameter. This is designed
74 * only for testing the driver regulatory request, world roaming
75 * and all possible combinations.
76 *
77 * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
78 * this is the default value.
79 * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
80 * hint, only one driver regulatory hint will be sent as such the
81 * secondary radios are expected to follow.
82 * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
83 * request with all radios reporting the same regulatory domain.
84 * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
85 * different regulatory domains requests. Expected behaviour is for
86 * an intersection to occur but each device will still use their
87 * respective regulatory requested domains. Subsequent radios will
88 * use the resulting intersection.
89 * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We accomplish
90 * this by using a custom beacon-capable regulatory domain for the first
91 * radio. All other device world roam.
92 * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
93 * domain requests. All radios will adhere to this custom world regulatory
94 * domain.
95 * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
96 * domain requests. The first radio will adhere to the first custom world
97 * regulatory domain, the second one to the second custom world regulatory
98 * domain. All other devices will world roam.
99 * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain
100 * settings, only the first radio will send a regulatory domain request
101 * and use strict settings. The rest of the radios are expected to follow.
102 * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
103 * settings. All radios will adhere to this.
104 * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
105 * domain settings, combined with secondary driver regulatory domain
106 * settings. The first radio will get a strict regulatory domain setting
107 * using the first driver regulatory request and the second radio will use
108 * non-strict settings using the second driver regulatory request. All
109 * other devices should follow the intersection created between the
110 * first two.
111 * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
112 * at least 6 radios for a complete test. We will test in this order:
113 * 1 - driver custom world regulatory domain
114 * 2 - second custom world regulatory domain
115 * 3 - first driver regulatory domain request
116 * 4 - second driver regulatory domain request
117 * 5 - strict regulatory domain settings using the third driver regulatory
118 * domain request
119 * 6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
120 * regulatory requests.
121 */
122 enum hwsim_regtest {
123 HWSIM_REGTEST_DISABLED = 0,
124 HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1,
125 HWSIM_REGTEST_DRIVER_REG_ALL = 2,
126 HWSIM_REGTEST_DIFF_COUNTRY = 3,
127 HWSIM_REGTEST_WORLD_ROAM = 4,
128 HWSIM_REGTEST_CUSTOM_WORLD = 5,
129 HWSIM_REGTEST_CUSTOM_WORLD_2 = 6,
130 HWSIM_REGTEST_STRICT_FOLLOW = 7,
131 HWSIM_REGTEST_STRICT_ALL = 8,
132 HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9,
133 HWSIM_REGTEST_ALL = 10,
134 };
135
136 /* Set to one of the HWSIM_REGTEST_* values above */
137 static int regtest = HWSIM_REGTEST_DISABLED;
138 module_param(regtest, int, 0444);
139 MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run");
140
141 static const char *hwsim_alpha2s[] = {
142 "FI",
143 "AL",
144 "US",
145 "DE",
146 "JP",
147 "AL",
148 };
149
150 static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = {
151 .n_reg_rules = 5,
152 .alpha2 = "99",
153 .reg_rules = {
154 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
155 REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
156 REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
157 REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
158 REG_RULE(5855-10, 5925+10, 40, 0, 33, 0),
159 }
160 };
161
162 static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = {
163 .n_reg_rules = 3,
164 .alpha2 = "99",
165 .reg_rules = {
166 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
167 REG_RULE(5725-10, 5850+10, 40, 0, 30,
168 NL80211_RRF_NO_IR),
169 REG_RULE(5855-10, 5925+10, 40, 0, 33, 0),
170 }
171 };
172
173 static const struct ieee80211_regdomain *hwsim_world_regdom_custom[] = {
174 &hwsim_world_regdom_custom_01,
175 &hwsim_world_regdom_custom_02,
176 };
177
178 struct hwsim_vif_priv {
179 u32 magic;
180 u8 bssid[ETH_ALEN];
181 bool assoc;
182 bool bcn_en;
183 u16 aid;
184 };
185
186 #define HWSIM_VIF_MAGIC 0x69537748
187
188 static inline void hwsim_check_magic(struct ieee80211_vif *vif)
189 {
190 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
191 WARN(vp->magic != HWSIM_VIF_MAGIC,
192 "Invalid VIF (%p) magic %#x, %pM, %d/%d\n",
193 vif, vp->magic, vif->addr, vif->type, vif->p2p);
194 }
195
196 static inline void hwsim_set_magic(struct ieee80211_vif *vif)
197 {
198 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
199 vp->magic = HWSIM_VIF_MAGIC;
200 }
201
202 static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
203 {
204 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
205 vp->magic = 0;
206 }
207
208 struct hwsim_sta_priv {
209 u32 magic;
210 };
211
212 #define HWSIM_STA_MAGIC 0x6d537749
213
214 static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
215 {
216 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
217 WARN_ON(sp->magic != HWSIM_STA_MAGIC);
218 }
219
220 static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
221 {
222 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
223 sp->magic = HWSIM_STA_MAGIC;
224 }
225
226 static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
227 {
228 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
229 sp->magic = 0;
230 }
231
232 struct hwsim_chanctx_priv {
233 u32 magic;
234 };
235
236 #define HWSIM_CHANCTX_MAGIC 0x6d53774a
237
238 static inline void hwsim_check_chanctx_magic(struct ieee80211_chanctx_conf *c)
239 {
240 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
241 WARN_ON(cp->magic != HWSIM_CHANCTX_MAGIC);
242 }
243
244 static inline void hwsim_set_chanctx_magic(struct ieee80211_chanctx_conf *c)
245 {
246 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
247 cp->magic = HWSIM_CHANCTX_MAGIC;
248 }
249
250 static inline void hwsim_clear_chanctx_magic(struct ieee80211_chanctx_conf *c)
251 {
252 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
253 cp->magic = 0;
254 }
255
256 static unsigned int hwsim_net_id;
257
258 static DEFINE_IDA(hwsim_netgroup_ida);
259
260 struct hwsim_net {
261 int netgroup;
262 u32 wmediumd;
263 };
264
265 static inline int hwsim_net_get_netgroup(struct net *net)
266 {
267 struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
268
269 return hwsim_net->netgroup;
270 }
271
272 static inline int hwsim_net_set_netgroup(struct net *net)
273 {
274 struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
275
276 hwsim_net->netgroup = ida_simple_get(&hwsim_netgroup_ida,
277 0, 0, GFP_KERNEL);
278 return hwsim_net->netgroup >= 0 ? 0 : -ENOMEM;
279 }
280
281 static inline u32 hwsim_net_get_wmediumd(struct net *net)
282 {
283 struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
284
285 return hwsim_net->wmediumd;
286 }
287
288 static inline void hwsim_net_set_wmediumd(struct net *net, u32 portid)
289 {
290 struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
291
292 hwsim_net->wmediumd = portid;
293 }
294
295 static struct class *hwsim_class;
296
297 static struct net_device *hwsim_mon; /* global monitor netdev */
298
299 #define CHAN2G(_freq) { \
300 .band = NL80211_BAND_2GHZ, \
301 .center_freq = (_freq), \
302 .hw_value = (_freq), \
303 .max_power = 20, \
304 }
305
306 #define CHAN5G(_freq) { \
307 .band = NL80211_BAND_5GHZ, \
308 .center_freq = (_freq), \
309 .hw_value = (_freq), \
310 .max_power = 20, \
311 }
312
313 static const struct ieee80211_channel hwsim_channels_2ghz[] = {
314 CHAN2G(2412), /* Channel 1 */
315 CHAN2G(2417), /* Channel 2 */
316 CHAN2G(2422), /* Channel 3 */
317 CHAN2G(2427), /* Channel 4 */
318 CHAN2G(2432), /* Channel 5 */
319 CHAN2G(2437), /* Channel 6 */
320 CHAN2G(2442), /* Channel 7 */
321 CHAN2G(2447), /* Channel 8 */
322 CHAN2G(2452), /* Channel 9 */
323 CHAN2G(2457), /* Channel 10 */
324 CHAN2G(2462), /* Channel 11 */
325 CHAN2G(2467), /* Channel 12 */
326 CHAN2G(2472), /* Channel 13 */
327 CHAN2G(2484), /* Channel 14 */
328 };
329
330 static const struct ieee80211_channel hwsim_channels_5ghz[] = {
331 CHAN5G(5180), /* Channel 36 */
332 CHAN5G(5200), /* Channel 40 */
333 CHAN5G(5220), /* Channel 44 */
334 CHAN5G(5240), /* Channel 48 */
335
336 CHAN5G(5260), /* Channel 52 */
337 CHAN5G(5280), /* Channel 56 */
338 CHAN5G(5300), /* Channel 60 */
339 CHAN5G(5320), /* Channel 64 */
340
341 CHAN5G(5500), /* Channel 100 */
342 CHAN5G(5520), /* Channel 104 */
343 CHAN5G(5540), /* Channel 108 */
344 CHAN5G(5560), /* Channel 112 */
345 CHAN5G(5580), /* Channel 116 */
346 CHAN5G(5600), /* Channel 120 */
347 CHAN5G(5620), /* Channel 124 */
348 CHAN5G(5640), /* Channel 128 */
349 CHAN5G(5660), /* Channel 132 */
350 CHAN5G(5680), /* Channel 136 */
351 CHAN5G(5700), /* Channel 140 */
352
353 CHAN5G(5745), /* Channel 149 */
354 CHAN5G(5765), /* Channel 153 */
355 CHAN5G(5785), /* Channel 157 */
356 CHAN5G(5805), /* Channel 161 */
357 CHAN5G(5825), /* Channel 165 */
358 CHAN5G(5845), /* Channel 169 */
359
360 CHAN5G(5855), /* Channel 171 */
361 CHAN5G(5860), /* Channel 172 */
362 CHAN5G(5865), /* Channel 173 */
363 CHAN5G(5870), /* Channel 174 */
364
365 CHAN5G(5875), /* Channel 175 */
366 CHAN5G(5880), /* Channel 176 */
367 CHAN5G(5885), /* Channel 177 */
368 CHAN5G(5890), /* Channel 178 */
369 CHAN5G(5895), /* Channel 179 */
370 CHAN5G(5900), /* Channel 180 */
371 CHAN5G(5905), /* Channel 181 */
372
373 CHAN5G(5910), /* Channel 182 */
374 CHAN5G(5915), /* Channel 183 */
375 CHAN5G(5920), /* Channel 184 */
376 CHAN5G(5925), /* Channel 185 */
377 };
378
379 static const struct ieee80211_rate hwsim_rates[] = {
380 { .bitrate = 10 },
381 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
382 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
383 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
384 { .bitrate = 60 },
385 { .bitrate = 90 },
386 { .bitrate = 120 },
387 { .bitrate = 180 },
388 { .bitrate = 240 },
389 { .bitrate = 360 },
390 { .bitrate = 480 },
391 { .bitrate = 540 }
392 };
393
394 static const u32 hwsim_ciphers[] = {
395 WLAN_CIPHER_SUITE_WEP40,
396 WLAN_CIPHER_SUITE_WEP104,
397 WLAN_CIPHER_SUITE_TKIP,
398 WLAN_CIPHER_SUITE_CCMP,
399 WLAN_CIPHER_SUITE_CCMP_256,
400 WLAN_CIPHER_SUITE_GCMP,
401 WLAN_CIPHER_SUITE_GCMP_256,
402 WLAN_CIPHER_SUITE_AES_CMAC,
403 WLAN_CIPHER_SUITE_BIP_CMAC_256,
404 WLAN_CIPHER_SUITE_BIP_GMAC_128,
405 WLAN_CIPHER_SUITE_BIP_GMAC_256,
406 };
407
408 #define OUI_QCA 0x001374
409 #define QCA_NL80211_SUBCMD_TEST 1
410 enum qca_nl80211_vendor_subcmds {
411 QCA_WLAN_VENDOR_ATTR_TEST = 8,
412 QCA_WLAN_VENDOR_ATTR_MAX = QCA_WLAN_VENDOR_ATTR_TEST
413 };
414
415 static const struct nla_policy
416 hwsim_vendor_test_policy[QCA_WLAN_VENDOR_ATTR_MAX + 1] = {
417 [QCA_WLAN_VENDOR_ATTR_MAX] = { .type = NLA_U32 },
418 };
419
420 static int mac80211_hwsim_vendor_cmd_test(struct wiphy *wiphy,
421 struct wireless_dev *wdev,
422 const void *data, int data_len)
423 {
424 struct sk_buff *skb;
425 struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_MAX + 1];
426 int err;
427 u32 val;
428
429 err = nla_parse_deprecated(tb, QCA_WLAN_VENDOR_ATTR_MAX, data,
430 data_len, hwsim_vendor_test_policy, NULL);
431 if (err)
432 return err;
433 if (!tb[QCA_WLAN_VENDOR_ATTR_TEST])
434 return -EINVAL;
435 val = nla_get_u32(tb[QCA_WLAN_VENDOR_ATTR_TEST]);
436 wiphy_dbg(wiphy, "%s: test=%u\n", __func__, val);
437
438 /* Send a vendor event as a test. Note that this would not normally be
439 * done within a command handler, but rather, based on some other
440 * trigger. For simplicity, this command is used to trigger the event
441 * here.
442 *
443 * event_idx = 0 (index in mac80211_hwsim_vendor_commands)
444 */
445 skb = cfg80211_vendor_event_alloc(wiphy, wdev, 100, 0, GFP_KERNEL);
446 if (skb) {
447 /* skb_put() or nla_put() will fill up data within
448 * NL80211_ATTR_VENDOR_DATA.
449 */
450
451 /* Add vendor data */
452 nla_put_u32(skb, QCA_WLAN_VENDOR_ATTR_TEST, val + 1);
453
454 /* Send the event - this will call nla_nest_end() */
455 cfg80211_vendor_event(skb, GFP_KERNEL);
456 }
457
458 /* Send a response to the command */
459 skb = cfg80211_vendor_cmd_alloc_reply_skb(wiphy, 10);
460 if (!skb)
461 return -ENOMEM;
462
463 /* skb_put() or nla_put() will fill up data within
464 * NL80211_ATTR_VENDOR_DATA
465 */
466 nla_put_u32(skb, QCA_WLAN_VENDOR_ATTR_TEST, val + 2);
467
468 return cfg80211_vendor_cmd_reply(skb);
469 }
470
471 static struct wiphy_vendor_command mac80211_hwsim_vendor_commands[] = {
472 {
473 .info = { .vendor_id = OUI_QCA,
474 .subcmd = QCA_NL80211_SUBCMD_TEST },
475 .flags = WIPHY_VENDOR_CMD_NEED_NETDEV,
476 .doit = mac80211_hwsim_vendor_cmd_test,
477 .policy = hwsim_vendor_test_policy,
478 .maxattr = QCA_WLAN_VENDOR_ATTR_MAX,
479 }
480 };
481
482 /* Advertise support vendor specific events */
483 static const struct nl80211_vendor_cmd_info mac80211_hwsim_vendor_events[] = {
484 { .vendor_id = OUI_QCA, .subcmd = 1 },
485 };
486
487 static spinlock_t hwsim_radio_lock;
488 static LIST_HEAD(hwsim_radios);
489 static struct rhashtable hwsim_radios_rht;
490 static int hwsim_radio_idx;
491 static int hwsim_radios_generation = 1;
492
493 static struct platform_driver mac80211_hwsim_driver = {
494 .driver = {
495 .name = "mac80211_hwsim",
496 },
497 };
498
499 struct mac80211_hwsim_data {
500 struct list_head list;
501 struct rhash_head rht;
502 struct ieee80211_hw *hw;
503 struct device *dev;
504 struct ieee80211_supported_band bands[NUM_NL80211_BANDS];
505 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
506 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
507 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
508 struct ieee80211_iface_combination if_combination;
509 struct ieee80211_iface_limit if_limits[3];
510 int n_if_limits;
511
512 u32 ciphers[ARRAY_SIZE(hwsim_ciphers)];
513
514 struct mac_address addresses[2];
515 int channels, idx;
516 bool use_chanctx;
517 bool destroy_on_close;
518 u32 portid;
519 char alpha2[2];
520 const struct ieee80211_regdomain *regd;
521
522 struct ieee80211_channel *tmp_chan;
523 struct ieee80211_channel *roc_chan;
524 u32 roc_duration;
525 struct delayed_work roc_start;
526 struct delayed_work roc_done;
527 struct delayed_work hw_scan;
528 struct cfg80211_scan_request *hw_scan_request;
529 struct ieee80211_vif *hw_scan_vif;
530 int scan_chan_idx;
531 u8 scan_addr[ETH_ALEN];
532 struct {
533 struct ieee80211_channel *channel;
534 unsigned long next_start, start, end;
535 } survey_data[ARRAY_SIZE(hwsim_channels_2ghz) +
536 ARRAY_SIZE(hwsim_channels_5ghz)];
537
538 struct ieee80211_channel *channel;
539 u64 beacon_int /* beacon interval in us */;
540 unsigned int rx_filter;
541 bool started, idle, scanning;
542 struct mutex mutex;
543 struct hrtimer beacon_timer;
544 enum ps_mode {
545 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
546 } ps;
547 bool ps_poll_pending;
548 struct dentry *debugfs;
549
550 uintptr_t pending_cookie;
551 struct sk_buff_head pending; /* packets pending */
552 /*
553 * Only radios in the same group can communicate together (the
554 * channel has to match too). Each bit represents a group. A
555 * radio can be in more than one group.
556 */
557 u64 group;
558
559 /* group shared by radios created in the same netns */
560 int netgroup;
561 /* wmediumd portid responsible for netgroup of this radio */
562 u32 wmediumd;
563
564 /* difference between this hw's clock and the real clock, in usecs */
565 s64 tsf_offset;
566 s64 bcn_delta;
567 /* absolute beacon transmission time. Used to cover up "tx" delay. */
568 u64 abs_bcn_ts;
569
570 /* Stats */
571 u64 tx_pkts;
572 u64 rx_pkts;
573 u64 tx_bytes;
574 u64 rx_bytes;
575 u64 tx_dropped;
576 u64 tx_failed;
577 };
578
579 static const struct rhashtable_params hwsim_rht_params = {
580 .nelem_hint = 2,
581 .automatic_shrinking = true,
582 .key_len = ETH_ALEN,
583 .key_offset = offsetof(struct mac80211_hwsim_data, addresses[1]),
584 .head_offset = offsetof(struct mac80211_hwsim_data, rht),
585 };
586
587 struct hwsim_radiotap_hdr {
588 struct ieee80211_radiotap_header hdr;
589 __le64 rt_tsft;
590 u8 rt_flags;
591 u8 rt_rate;
592 __le16 rt_channel;
593 __le16 rt_chbitmask;
594 } __packed;
595
596 struct hwsim_radiotap_ack_hdr {
597 struct ieee80211_radiotap_header hdr;
598 u8 rt_flags;
599 u8 pad;
600 __le16 rt_channel;
601 __le16 rt_chbitmask;
602 } __packed;
603
604 /* MAC80211_HWSIM netlink family */
605 static struct genl_family hwsim_genl_family;
606
607 enum hwsim_multicast_groups {
608 HWSIM_MCGRP_CONFIG,
609 };
610
611 static const struct genl_multicast_group hwsim_mcgrps[] = {
612 [HWSIM_MCGRP_CONFIG] = { .name = "config", },
613 };
614
615 /* MAC80211_HWSIM netlink policy */
616
617 static const struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
618 [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
619 [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
620 [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
621 .len = IEEE80211_MAX_DATA_LEN },
622 [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
623 [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
624 [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
625 [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC,
626 .len = IEEE80211_TX_MAX_RATES *
627 sizeof(struct hwsim_tx_rate)},
628 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
629 [HWSIM_ATTR_CHANNELS] = { .type = NLA_U32 },
630 [HWSIM_ATTR_RADIO_ID] = { .type = NLA_U32 },
631 [HWSIM_ATTR_REG_HINT_ALPHA2] = { .type = NLA_STRING, .len = 2 },
632 [HWSIM_ATTR_REG_CUSTOM_REG] = { .type = NLA_U32 },
633 [HWSIM_ATTR_REG_STRICT_REG] = { .type = NLA_FLAG },
634 [HWSIM_ATTR_SUPPORT_P2P_DEVICE] = { .type = NLA_FLAG },
635 [HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE] = { .type = NLA_FLAG },
636 [HWSIM_ATTR_RADIO_NAME] = { .type = NLA_STRING },
637 [HWSIM_ATTR_NO_VIF] = { .type = NLA_FLAG },
638 [HWSIM_ATTR_FREQ] = { .type = NLA_U32 },
639 [HWSIM_ATTR_PERM_ADDR] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
640 [HWSIM_ATTR_IFTYPE_SUPPORT] = { .type = NLA_U32 },
641 [HWSIM_ATTR_CIPHER_SUPPORT] = { .type = NLA_BINARY },
642 };
643
644 static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
645 struct sk_buff *skb,
646 struct ieee80211_channel *chan);
647
648 /* sysfs attributes */
649 static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
650 {
651 struct mac80211_hwsim_data *data = dat;
652 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
653 struct sk_buff *skb;
654 struct ieee80211_pspoll *pspoll;
655
656 if (!vp->assoc)
657 return;
658
659 wiphy_dbg(data->hw->wiphy,
660 "%s: send PS-Poll to %pM for aid %d\n",
661 __func__, vp->bssid, vp->aid);
662
663 skb = dev_alloc_skb(sizeof(*pspoll));
664 if (!skb)
665 return;
666 pspoll = skb_put(skb, sizeof(*pspoll));
667 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
668 IEEE80211_STYPE_PSPOLL |
669 IEEE80211_FCTL_PM);
670 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
671 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
672 memcpy(pspoll->ta, mac, ETH_ALEN);
673
674 rcu_read_lock();
675 mac80211_hwsim_tx_frame(data->hw, skb,
676 rcu_dereference(vif->chanctx_conf)->def.chan);
677 rcu_read_unlock();
678 }
679
680 static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
681 struct ieee80211_vif *vif, int ps)
682 {
683 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
684 struct sk_buff *skb;
685 struct ieee80211_hdr *hdr;
686
687 if (!vp->assoc)
688 return;
689
690 wiphy_dbg(data->hw->wiphy,
691 "%s: send data::nullfunc to %pM ps=%d\n",
692 __func__, vp->bssid, ps);
693
694 skb = dev_alloc_skb(sizeof(*hdr));
695 if (!skb)
696 return;
697 hdr = skb_put(skb, sizeof(*hdr) - ETH_ALEN);
698 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
699 IEEE80211_STYPE_NULLFUNC |
700 IEEE80211_FCTL_TODS |
701 (ps ? IEEE80211_FCTL_PM : 0));
702 hdr->duration_id = cpu_to_le16(0);
703 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
704 memcpy(hdr->addr2, mac, ETH_ALEN);
705 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
706
707 rcu_read_lock();
708 mac80211_hwsim_tx_frame(data->hw, skb,
709 rcu_dereference(vif->chanctx_conf)->def.chan);
710 rcu_read_unlock();
711 }
712
713
714 static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
715 struct ieee80211_vif *vif)
716 {
717 struct mac80211_hwsim_data *data = dat;
718 hwsim_send_nullfunc(data, mac, vif, 1);
719 }
720
721 static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
722 struct ieee80211_vif *vif)
723 {
724 struct mac80211_hwsim_data *data = dat;
725 hwsim_send_nullfunc(data, mac, vif, 0);
726 }
727
728 static int hwsim_fops_ps_read(void *dat, u64 *val)
729 {
730 struct mac80211_hwsim_data *data = dat;
731 *val = data->ps;
732 return 0;
733 }
734
735 static int hwsim_fops_ps_write(void *dat, u64 val)
736 {
737 struct mac80211_hwsim_data *data = dat;
738 enum ps_mode old_ps;
739
740 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
741 val != PS_MANUAL_POLL)
742 return -EINVAL;
743
744 if (val == PS_MANUAL_POLL) {
745 if (data->ps != PS_ENABLED)
746 return -EINVAL;
747 local_bh_disable();
748 ieee80211_iterate_active_interfaces_atomic(
749 data->hw, IEEE80211_IFACE_ITER_NORMAL,
750 hwsim_send_ps_poll, data);
751 local_bh_enable();
752 return 0;
753 }
754 old_ps = data->ps;
755 data->ps = val;
756
757 local_bh_disable();
758 if (old_ps == PS_DISABLED && val != PS_DISABLED) {
759 ieee80211_iterate_active_interfaces_atomic(
760 data->hw, IEEE80211_IFACE_ITER_NORMAL,
761 hwsim_send_nullfunc_ps, data);
762 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
763 ieee80211_iterate_active_interfaces_atomic(
764 data->hw, IEEE80211_IFACE_ITER_NORMAL,
765 hwsim_send_nullfunc_no_ps, data);
766 }
767 local_bh_enable();
768
769 return 0;
770 }
771
772 DEFINE_DEBUGFS_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
773 "%llu\n");
774
775 static int hwsim_write_simulate_radar(void *dat, u64 val)
776 {
777 struct mac80211_hwsim_data *data = dat;
778
779 ieee80211_radar_detected(data->hw);
780
781 return 0;
782 }
783
784 DEFINE_DEBUGFS_ATTRIBUTE(hwsim_simulate_radar, NULL,
785 hwsim_write_simulate_radar, "%llu\n");
786
787 static int hwsim_fops_group_read(void *dat, u64 *val)
788 {
789 struct mac80211_hwsim_data *data = dat;
790 *val = data->group;
791 return 0;
792 }
793
794 static int hwsim_fops_group_write(void *dat, u64 val)
795 {
796 struct mac80211_hwsim_data *data = dat;
797 data->group = val;
798 return 0;
799 }
800
801 DEFINE_DEBUGFS_ATTRIBUTE(hwsim_fops_group,
802 hwsim_fops_group_read, hwsim_fops_group_write,
803 "%llx\n");
804
805 static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
806 struct net_device *dev)
807 {
808 /* TODO: allow packet injection */
809 dev_kfree_skb(skb);
810 return NETDEV_TX_OK;
811 }
812
813 static inline u64 mac80211_hwsim_get_tsf_raw(void)
814 {
815 return ktime_to_us(ktime_get_real());
816 }
817
818 static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
819 {
820 u64 now = mac80211_hwsim_get_tsf_raw();
821 return cpu_to_le64(now + data->tsf_offset);
822 }
823
824 static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
825 struct ieee80211_vif *vif)
826 {
827 struct mac80211_hwsim_data *data = hw->priv;
828 return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
829 }
830
831 static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
832 struct ieee80211_vif *vif, u64 tsf)
833 {
834 struct mac80211_hwsim_data *data = hw->priv;
835 u64 now = mac80211_hwsim_get_tsf(hw, vif);
836 u32 bcn_int = data->beacon_int;
837 u64 delta = abs(tsf - now);
838
839 /* adjust after beaconing with new timestamp at old TBTT */
840 if (tsf > now) {
841 data->tsf_offset += delta;
842 data->bcn_delta = do_div(delta, bcn_int);
843 } else {
844 data->tsf_offset -= delta;
845 data->bcn_delta = -(s64)do_div(delta, bcn_int);
846 }
847 }
848
849 static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
850 struct sk_buff *tx_skb,
851 struct ieee80211_channel *chan)
852 {
853 struct mac80211_hwsim_data *data = hw->priv;
854 struct sk_buff *skb;
855 struct hwsim_radiotap_hdr *hdr;
856 u16 flags;
857 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
858 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
859
860 if (WARN_ON(!txrate))
861 return;
862
863 if (!netif_running(hwsim_mon))
864 return;
865
866 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
867 if (skb == NULL)
868 return;
869
870 hdr = skb_push(skb, sizeof(*hdr));
871 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
872 hdr->hdr.it_pad = 0;
873 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
874 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
875 (1 << IEEE80211_RADIOTAP_RATE) |
876 (1 << IEEE80211_RADIOTAP_TSFT) |
877 (1 << IEEE80211_RADIOTAP_CHANNEL));
878 hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
879 hdr->rt_flags = 0;
880 hdr->rt_rate = txrate->bitrate / 5;
881 hdr->rt_channel = cpu_to_le16(chan->center_freq);
882 flags = IEEE80211_CHAN_2GHZ;
883 if (txrate->flags & IEEE80211_RATE_ERP_G)
884 flags |= IEEE80211_CHAN_OFDM;
885 else
886 flags |= IEEE80211_CHAN_CCK;
887 hdr->rt_chbitmask = cpu_to_le16(flags);
888
889 skb->dev = hwsim_mon;
890 skb_reset_mac_header(skb);
891 skb->ip_summed = CHECKSUM_UNNECESSARY;
892 skb->pkt_type = PACKET_OTHERHOST;
893 skb->protocol = htons(ETH_P_802_2);
894 memset(skb->cb, 0, sizeof(skb->cb));
895 netif_rx(skb);
896 }
897
898
899 static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
900 const u8 *addr)
901 {
902 struct sk_buff *skb;
903 struct hwsim_radiotap_ack_hdr *hdr;
904 u16 flags;
905 struct ieee80211_hdr *hdr11;
906
907 if (!netif_running(hwsim_mon))
908 return;
909
910 skb = dev_alloc_skb(100);
911 if (skb == NULL)
912 return;
913
914 hdr = skb_put(skb, sizeof(*hdr));
915 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
916 hdr->hdr.it_pad = 0;
917 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
918 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
919 (1 << IEEE80211_RADIOTAP_CHANNEL));
920 hdr->rt_flags = 0;
921 hdr->pad = 0;
922 hdr->rt_channel = cpu_to_le16(chan->center_freq);
923 flags = IEEE80211_CHAN_2GHZ;
924 hdr->rt_chbitmask = cpu_to_le16(flags);
925
926 hdr11 = skb_put(skb, 10);
927 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
928 IEEE80211_STYPE_ACK);
929 hdr11->duration_id = cpu_to_le16(0);
930 memcpy(hdr11->addr1, addr, ETH_ALEN);
931
932 skb->dev = hwsim_mon;
933 skb_reset_mac_header(skb);
934 skb->ip_summed = CHECKSUM_UNNECESSARY;
935 skb->pkt_type = PACKET_OTHERHOST;
936 skb->protocol = htons(ETH_P_802_2);
937 memset(skb->cb, 0, sizeof(skb->cb));
938 netif_rx(skb);
939 }
940
941 struct mac80211_hwsim_addr_match_data {
942 u8 addr[ETH_ALEN];
943 bool ret;
944 };
945
946 static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
947 struct ieee80211_vif *vif)
948 {
949 struct mac80211_hwsim_addr_match_data *md = data;
950
951 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
952 md->ret = true;
953 }
954
955 static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
956 const u8 *addr)
957 {
958 struct mac80211_hwsim_addr_match_data md = {
959 .ret = false,
960 };
961
962 if (data->scanning && memcmp(addr, data->scan_addr, ETH_ALEN) == 0)
963 return true;
964
965 memcpy(md.addr, addr, ETH_ALEN);
966
967 ieee80211_iterate_active_interfaces_atomic(data->hw,
968 IEEE80211_IFACE_ITER_NORMAL,
969 mac80211_hwsim_addr_iter,
970 &md);
971
972 return md.ret;
973 }
974
975 static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
976 struct sk_buff *skb)
977 {
978 switch (data->ps) {
979 case PS_DISABLED:
980 return true;
981 case PS_ENABLED:
982 return false;
983 case PS_AUTO_POLL:
984 /* TODO: accept (some) Beacons by default and other frames only
985 * if pending PS-Poll has been sent */
986 return true;
987 case PS_MANUAL_POLL:
988 /* Allow unicast frames to own address if there is a pending
989 * PS-Poll */
990 if (data->ps_poll_pending &&
991 mac80211_hwsim_addr_match(data, skb->data + 4)) {
992 data->ps_poll_pending = false;
993 return true;
994 }
995 return false;
996 }
997
998 return true;
999 }
1000
1001 static int hwsim_unicast_netgroup(struct mac80211_hwsim_data *data,
1002 struct sk_buff *skb, int portid)
1003 {
1004 struct net *net;
1005 bool found = false;
1006 int res = -ENOENT;
1007
1008 rcu_read_lock();
1009 for_each_net_rcu(net) {
1010 if (data->netgroup == hwsim_net_get_netgroup(net)) {
1011 res = genlmsg_unicast(net, skb, portid);
1012 found = true;
1013 break;
1014 }
1015 }
1016 rcu_read_unlock();
1017
1018 if (!found)
1019 nlmsg_free(skb);
1020
1021 return res;
1022 }
1023
1024 static inline u16 trans_tx_rate_flags_ieee2hwsim(struct ieee80211_tx_rate *rate)
1025 {
1026 u16 result = 0;
1027
1028 if (rate->flags & IEEE80211_TX_RC_USE_RTS_CTS)
1029 result |= MAC80211_HWSIM_TX_RC_USE_RTS_CTS;
1030 if (rate->flags & IEEE80211_TX_RC_USE_CTS_PROTECT)
1031 result |= MAC80211_HWSIM_TX_RC_USE_CTS_PROTECT;
1032 if (rate->flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
1033 result |= MAC80211_HWSIM_TX_RC_USE_SHORT_PREAMBLE;
1034 if (rate->flags & IEEE80211_TX_RC_MCS)
1035 result |= MAC80211_HWSIM_TX_RC_MCS;
1036 if (rate->flags & IEEE80211_TX_RC_GREEN_FIELD)
1037 result |= MAC80211_HWSIM_TX_RC_GREEN_FIELD;
1038 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
1039 result |= MAC80211_HWSIM_TX_RC_40_MHZ_WIDTH;
1040 if (rate->flags & IEEE80211_TX_RC_DUP_DATA)
1041 result |= MAC80211_HWSIM_TX_RC_DUP_DATA;
1042 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
1043 result |= MAC80211_HWSIM_TX_RC_SHORT_GI;
1044 if (rate->flags & IEEE80211_TX_RC_VHT_MCS)
1045 result |= MAC80211_HWSIM_TX_RC_VHT_MCS;
1046 if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
1047 result |= MAC80211_HWSIM_TX_RC_80_MHZ_WIDTH;
1048 if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
1049 result |= MAC80211_HWSIM_TX_RC_160_MHZ_WIDTH;
1050
1051 return result;
1052 }
1053
1054 static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
1055 struct sk_buff *my_skb,
1056 int dst_portid)
1057 {
1058 struct sk_buff *skb;
1059 struct mac80211_hwsim_data *data = hw->priv;
1060 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
1061 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
1062 void *msg_head;
1063 unsigned int hwsim_flags = 0;
1064 int i;
1065 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
1066 struct hwsim_tx_rate_flag tx_attempts_flags[IEEE80211_TX_MAX_RATES];
1067 uintptr_t cookie;
1068
1069 if (data->ps != PS_DISABLED)
1070 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1071 /* If the queue contains MAX_QUEUE skb's drop some */
1072 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
1073 /* Droping until WARN_QUEUE level */
1074 while (skb_queue_len(&data->pending) >= WARN_QUEUE) {
1075 ieee80211_free_txskb(hw, skb_dequeue(&data->pending));
1076 data->tx_dropped++;
1077 }
1078 }
1079
1080 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
1081 if (skb == NULL)
1082 goto nla_put_failure;
1083
1084 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
1085 HWSIM_CMD_FRAME);
1086 if (msg_head == NULL) {
1087 pr_debug("mac80211_hwsim: problem with msg_head\n");
1088 goto nla_put_failure;
1089 }
1090
1091 if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
1092 ETH_ALEN, data->addresses[1].addr))
1093 goto nla_put_failure;
1094
1095 /* We get the skb->data */
1096 if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
1097 goto nla_put_failure;
1098
1099 /* We get the flags for this transmission, and we translate them to
1100 wmediumd flags */
1101
1102 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
1103 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
1104
1105 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
1106 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
1107
1108 if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
1109 goto nla_put_failure;
1110
1111 if (nla_put_u32(skb, HWSIM_ATTR_FREQ, data->channel->center_freq))
1112 goto nla_put_failure;
1113
1114 /* We get the tx control (rate and retries) info*/
1115
1116 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
1117 tx_attempts[i].idx = info->status.rates[i].idx;
1118 tx_attempts_flags[i].idx = info->status.rates[i].idx;
1119 tx_attempts[i].count = info->status.rates[i].count;
1120 tx_attempts_flags[i].flags =
1121 trans_tx_rate_flags_ieee2hwsim(
1122 &info->status.rates[i]);
1123 }
1124
1125 if (nla_put(skb, HWSIM_ATTR_TX_INFO,
1126 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
1127 tx_attempts))
1128 goto nla_put_failure;
1129
1130 if (nla_put(skb, HWSIM_ATTR_TX_INFO_FLAGS,
1131 sizeof(struct hwsim_tx_rate_flag) * IEEE80211_TX_MAX_RATES,
1132 tx_attempts_flags))
1133 goto nla_put_failure;
1134
1135 /* We create a cookie to identify this skb */
1136 data->pending_cookie++;
1137 cookie = data->pending_cookie;
1138 info->rate_driver_data[0] = (void *)cookie;
1139 if (nla_put_u64_64bit(skb, HWSIM_ATTR_COOKIE, cookie, HWSIM_ATTR_PAD))
1140 goto nla_put_failure;
1141
1142 genlmsg_end(skb, msg_head);
1143 if (hwsim_unicast_netgroup(data, skb, dst_portid))
1144 goto err_free_txskb;
1145
1146 /* Enqueue the packet */
1147 skb_queue_tail(&data->pending, my_skb);
1148 data->tx_pkts++;
1149 data->tx_bytes += my_skb->len;
1150 return;
1151
1152 nla_put_failure:
1153 nlmsg_free(skb);
1154 err_free_txskb:
1155 pr_debug("mac80211_hwsim: error occurred in %s\n", __func__);
1156 ieee80211_free_txskb(hw, my_skb);
1157 data->tx_failed++;
1158 }
1159
1160 static bool hwsim_chans_compat(struct ieee80211_channel *c1,
1161 struct ieee80211_channel *c2)
1162 {
1163 if (!c1 || !c2)
1164 return false;
1165
1166 return c1->center_freq == c2->center_freq;
1167 }
1168
1169 struct tx_iter_data {
1170 struct ieee80211_channel *channel;
1171 bool receive;
1172 };
1173
1174 static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
1175 struct ieee80211_vif *vif)
1176 {
1177 struct tx_iter_data *data = _data;
1178
1179 if (!vif->chanctx_conf)
1180 return;
1181
1182 if (!hwsim_chans_compat(data->channel,
1183 rcu_dereference(vif->chanctx_conf)->def.chan))
1184 return;
1185
1186 data->receive = true;
1187 }
1188
1189 static void mac80211_hwsim_add_vendor_rtap(struct sk_buff *skb)
1190 {
1191 /*
1192 * To enable this code, #define the HWSIM_RADIOTAP_OUI,
1193 * e.g. like this:
1194 * #define HWSIM_RADIOTAP_OUI "\x02\x00\x00"
1195 * (but you should use a valid OUI, not that)
1196 *
1197 * If anyone wants to 'donate' a radiotap OUI/subns code
1198 * please send a patch removing this #ifdef and changing
1199 * the values accordingly.
1200 */
1201 #ifdef HWSIM_RADIOTAP_OUI
1202 struct ieee80211_vendor_radiotap *rtap;
1203
1204 /*
1205 * Note that this code requires the headroom in the SKB
1206 * that was allocated earlier.
1207 */
1208 rtap = skb_push(skb, sizeof(*rtap) + 8 + 4);
1209 rtap->oui[0] = HWSIM_RADIOTAP_OUI[0];
1210 rtap->oui[1] = HWSIM_RADIOTAP_OUI[1];
1211 rtap->oui[2] = HWSIM_RADIOTAP_OUI[2];
1212 rtap->subns = 127;
1213
1214 /*
1215 * Radiotap vendor namespaces can (and should) also be
1216 * split into fields by using the standard radiotap
1217 * presence bitmap mechanism. Use just BIT(0) here for
1218 * the presence bitmap.
1219 */
1220 rtap->present = BIT(0);
1221 /* We have 8 bytes of (dummy) data */
1222 rtap->len = 8;
1223 /* For testing, also require it to be aligned */
1224 rtap->align = 8;
1225 /* And also test that padding works, 4 bytes */
1226 rtap->pad = 4;
1227 /* push the data */
1228 memcpy(rtap->data, "ABCDEFGH", 8);
1229 /* make sure to clear padding, mac80211 doesn't */
1230 memset(rtap->data + 8, 0, 4);
1231
1232 IEEE80211_SKB_RXCB(skb)->flag |= RX_FLAG_RADIOTAP_VENDOR_DATA;
1233 #endif
1234 }
1235
1236 static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
1237 struct sk_buff *skb,
1238 struct ieee80211_channel *chan)
1239 {
1240 struct mac80211_hwsim_data *data = hw->priv, *data2;
1241 bool ack = false;
1242 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
1243 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1244 struct ieee80211_rx_status rx_status;
1245 u64 now;
1246
1247 memset(&rx_status, 0, sizeof(rx_status));
1248 rx_status.flag |= RX_FLAG_MACTIME_START;
1249 rx_status.freq = chan->center_freq;
1250 rx_status.band = chan->band;
1251 if (info->control.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) {
1252 rx_status.rate_idx =
1253 ieee80211_rate_get_vht_mcs(&info->control.rates[0]);
1254 rx_status.nss =
1255 ieee80211_rate_get_vht_nss(&info->control.rates[0]);
1256 rx_status.encoding = RX_ENC_VHT;
1257 } else {
1258 rx_status.rate_idx = info->control.rates[0].idx;
1259 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
1260 rx_status.encoding = RX_ENC_HT;
1261 }
1262 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
1263 rx_status.bw = RATE_INFO_BW_40;
1264 else if (info->control.rates[0].flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
1265 rx_status.bw = RATE_INFO_BW_80;
1266 else if (info->control.rates[0].flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
1267 rx_status.bw = RATE_INFO_BW_160;
1268 else
1269 rx_status.bw = RATE_INFO_BW_20;
1270 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
1271 rx_status.enc_flags |= RX_ENC_FLAG_SHORT_GI;
1272 /* TODO: simulate real signal strength (and optional packet loss) */
1273 rx_status.signal = -50;
1274 if (info->control.vif)
1275 rx_status.signal += info->control.vif->bss_conf.txpower;
1276
1277 if (data->ps != PS_DISABLED)
1278 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1279
1280 /* release the skb's source info */
1281 skb_orphan(skb);
1282 skb_dst_drop(skb);
1283 skb->mark = 0;
1284 skb_ext_reset(skb);
1285 nf_reset_ct(skb);
1286
1287 /*
1288 * Get absolute mactime here so all HWs RX at the "same time", and
1289 * absolute TX time for beacon mactime so the timestamp matches.
1290 * Giving beacons a different mactime than non-beacons looks messy, but
1291 * it helps the Toffset be exact and a ~10us mactime discrepancy
1292 * probably doesn't really matter.
1293 */
1294 if (ieee80211_is_beacon(hdr->frame_control) ||
1295 ieee80211_is_probe_resp(hdr->frame_control)) {
1296 rx_status.boottime_ns = ktime_get_boottime_ns();
1297 now = data->abs_bcn_ts;
1298 } else {
1299 now = mac80211_hwsim_get_tsf_raw();
1300 }
1301
1302 /* Copy skb to all enabled radios that are on the current frequency */
1303 spin_lock(&hwsim_radio_lock);
1304 list_for_each_entry(data2, &hwsim_radios, list) {
1305 struct sk_buff *nskb;
1306 struct tx_iter_data tx_iter_data = {
1307 .receive = false,
1308 .channel = chan,
1309 };
1310
1311 if (data == data2)
1312 continue;
1313
1314 if (!data2->started || (data2->idle && !data2->tmp_chan) ||
1315 !hwsim_ps_rx_ok(data2, skb))
1316 continue;
1317
1318 if (!(data->group & data2->group))
1319 continue;
1320
1321 if (data->netgroup != data2->netgroup)
1322 continue;
1323
1324 if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
1325 !hwsim_chans_compat(chan, data2->channel)) {
1326 ieee80211_iterate_active_interfaces_atomic(
1327 data2->hw, IEEE80211_IFACE_ITER_NORMAL,
1328 mac80211_hwsim_tx_iter, &tx_iter_data);
1329 if (!tx_iter_data.receive)
1330 continue;
1331 }
1332
1333 /*
1334 * reserve some space for our vendor and the normal
1335 * radiotap header, since we're copying anyway
1336 */
1337 if (skb->len < PAGE_SIZE && paged_rx) {
1338 struct page *page = alloc_page(GFP_ATOMIC);
1339
1340 if (!page)
1341 continue;
1342
1343 nskb = dev_alloc_skb(128);
1344 if (!nskb) {
1345 __free_page(page);
1346 continue;
1347 }
1348
1349 memcpy(page_address(page), skb->data, skb->len);
1350 skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
1351 } else {
1352 nskb = skb_copy(skb, GFP_ATOMIC);
1353 if (!nskb)
1354 continue;
1355 }
1356
1357 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
1358 ack = true;
1359
1360 rx_status.mactime = now + data2->tsf_offset;
1361
1362 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
1363
1364 mac80211_hwsim_add_vendor_rtap(nskb);
1365
1366 data2->rx_pkts++;
1367 data2->rx_bytes += nskb->len;
1368 ieee80211_rx_irqsafe(data2->hw, nskb);
1369 }
1370 spin_unlock(&hwsim_radio_lock);
1371
1372 return ack;
1373 }
1374
1375 static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
1376 struct ieee80211_tx_control *control,
1377 struct sk_buff *skb)
1378 {
1379 struct mac80211_hwsim_data *data = hw->priv;
1380 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1381 struct ieee80211_hdr *hdr = (void *)skb->data;
1382 struct ieee80211_chanctx_conf *chanctx_conf;
1383 struct ieee80211_channel *channel;
1384 bool ack;
1385 u32 _portid;
1386
1387 if (WARN_ON(skb->len < 10)) {
1388 /* Should not happen; just a sanity check for addr1 use */
1389 ieee80211_free_txskb(hw, skb);
1390 return;
1391 }
1392
1393 if (!data->use_chanctx) {
1394 channel = data->channel;
1395 } else if (txi->hw_queue == 4) {
1396 channel = data->tmp_chan;
1397 } else {
1398 chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf);
1399 if (chanctx_conf)
1400 channel = chanctx_conf->def.chan;
1401 else
1402 channel = NULL;
1403 }
1404
1405 if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
1406 ieee80211_free_txskb(hw, skb);
1407 return;
1408 }
1409
1410 if (data->idle && !data->tmp_chan) {
1411 wiphy_dbg(hw->wiphy, "Trying to TX when idle - reject\n");
1412 ieee80211_free_txskb(hw, skb);
1413 return;
1414 }
1415
1416 if (txi->control.vif)
1417 hwsim_check_magic(txi->control.vif);
1418 if (control->sta)
1419 hwsim_check_sta_magic(control->sta);
1420
1421 if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE))
1422 ieee80211_get_tx_rates(txi->control.vif, control->sta, skb,
1423 txi->control.rates,
1424 ARRAY_SIZE(txi->control.rates));
1425
1426 if (skb->len >= 24 + 8 &&
1427 ieee80211_is_probe_resp(hdr->frame_control)) {
1428 /* fake header transmission time */
1429 struct ieee80211_mgmt *mgmt;
1430 struct ieee80211_rate *txrate;
1431 u64 ts;
1432
1433 mgmt = (struct ieee80211_mgmt *)skb->data;
1434 txrate = ieee80211_get_tx_rate(hw, txi);
1435 ts = mac80211_hwsim_get_tsf_raw();
1436 mgmt->u.probe_resp.timestamp =
1437 cpu_to_le64(ts + data->tsf_offset +
1438 24 * 8 * 10 / txrate->bitrate);
1439 }
1440
1441 mac80211_hwsim_monitor_rx(hw, skb, channel);
1442
1443 /* wmediumd mode check */
1444 _portid = READ_ONCE(data->wmediumd);
1445
1446 if (_portid)
1447 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
1448
1449 /* NO wmediumd detected, perfect medium simulation */
1450 data->tx_pkts++;
1451 data->tx_bytes += skb->len;
1452 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
1453
1454 if (ack && skb->len >= 16)
1455 mac80211_hwsim_monitor_ack(channel, hdr->addr2);
1456
1457 ieee80211_tx_info_clear_status(txi);
1458
1459 /* frame was transmitted at most favorable rate at first attempt */
1460 txi->control.rates[0].count = 1;
1461 txi->control.rates[1].idx = -1;
1462
1463 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
1464 txi->flags |= IEEE80211_TX_STAT_ACK;
1465 ieee80211_tx_status_irqsafe(hw, skb);
1466 }
1467
1468
1469 static int mac80211_hwsim_start(struct ieee80211_hw *hw)
1470 {
1471 struct mac80211_hwsim_data *data = hw->priv;
1472 wiphy_dbg(hw->wiphy, "%s\n", __func__);
1473 data->started = true;
1474 return 0;
1475 }
1476
1477
1478 static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
1479 {
1480 struct mac80211_hwsim_data *data = hw->priv;
1481 data->started = false;
1482 hrtimer_cancel(&data->beacon_timer);
1483 wiphy_dbg(hw->wiphy, "%s\n", __func__);
1484 }
1485
1486
1487 static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
1488 struct ieee80211_vif *vif)
1489 {
1490 wiphy_dbg(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
1491 __func__, ieee80211_vif_type_p2p(vif),
1492 vif->addr);
1493 hwsim_set_magic(vif);
1494
1495 vif->cab_queue = 0;
1496 vif->hw_queue[IEEE80211_AC_VO] = 0;
1497 vif->hw_queue[IEEE80211_AC_VI] = 1;
1498 vif->hw_queue[IEEE80211_AC_BE] = 2;
1499 vif->hw_queue[IEEE80211_AC_BK] = 3;
1500
1501 return 0;
1502 }
1503
1504
1505 static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
1506 struct ieee80211_vif *vif,
1507 enum nl80211_iftype newtype,
1508 bool newp2p)
1509 {
1510 newtype = ieee80211_iftype_p2p(newtype, newp2p);
1511 wiphy_dbg(hw->wiphy,
1512 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
1513 __func__, ieee80211_vif_type_p2p(vif),
1514 newtype, vif->addr);
1515 hwsim_check_magic(vif);
1516
1517 /*
1518 * interface may change from non-AP to AP in
1519 * which case this needs to be set up again
1520 */
1521 vif->cab_queue = 0;
1522
1523 return 0;
1524 }
1525
1526 static void mac80211_hwsim_remove_interface(
1527 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1528 {
1529 wiphy_dbg(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
1530 __func__, ieee80211_vif_type_p2p(vif),
1531 vif->addr);
1532 hwsim_check_magic(vif);
1533 hwsim_clear_magic(vif);
1534 }
1535
1536 static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
1537 struct sk_buff *skb,
1538 struct ieee80211_channel *chan)
1539 {
1540 struct mac80211_hwsim_data *data = hw->priv;
1541 u32 _pid = READ_ONCE(data->wmediumd);
1542
1543 if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE)) {
1544 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1545 ieee80211_get_tx_rates(txi->control.vif, NULL, skb,
1546 txi->control.rates,
1547 ARRAY_SIZE(txi->control.rates));
1548 }
1549
1550 mac80211_hwsim_monitor_rx(hw, skb, chan);
1551
1552 if (_pid)
1553 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
1554
1555 mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
1556 dev_kfree_skb(skb);
1557 }
1558
1559 static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
1560 struct ieee80211_vif *vif)
1561 {
1562 struct mac80211_hwsim_data *data = arg;
1563 struct ieee80211_hw *hw = data->hw;
1564 struct ieee80211_tx_info *info;
1565 struct ieee80211_rate *txrate;
1566 struct ieee80211_mgmt *mgmt;
1567 struct sk_buff *skb;
1568
1569 hwsim_check_magic(vif);
1570
1571 if (vif->type != NL80211_IFTYPE_AP &&
1572 vif->type != NL80211_IFTYPE_MESH_POINT &&
1573 vif->type != NL80211_IFTYPE_ADHOC &&
1574 vif->type != NL80211_IFTYPE_OCB)
1575 return;
1576
1577 skb = ieee80211_beacon_get(hw, vif);
1578 if (skb == NULL)
1579 return;
1580 info = IEEE80211_SKB_CB(skb);
1581 if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE))
1582 ieee80211_get_tx_rates(vif, NULL, skb,
1583 info->control.rates,
1584 ARRAY_SIZE(info->control.rates));
1585
1586 txrate = ieee80211_get_tx_rate(hw, info);
1587
1588 mgmt = (struct ieee80211_mgmt *) skb->data;
1589 /* fake header transmission time */
1590 data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
1591 mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
1592 data->tsf_offset +
1593 24 * 8 * 10 / txrate->bitrate);
1594
1595 mac80211_hwsim_tx_frame(hw, skb,
1596 rcu_dereference(vif->chanctx_conf)->def.chan);
1597
1598 if (vif->csa_active && ieee80211_csa_is_complete(vif))
1599 ieee80211_csa_finish(vif);
1600 }
1601
1602 static enum hrtimer_restart
1603 mac80211_hwsim_beacon(struct hrtimer *timer)
1604 {
1605 struct mac80211_hwsim_data *data =
1606 container_of(timer, struct mac80211_hwsim_data, beacon_timer);
1607 struct ieee80211_hw *hw = data->hw;
1608 u64 bcn_int = data->beacon_int;
1609
1610 if (!data->started)
1611 return HRTIMER_NORESTART;
1612
1613 ieee80211_iterate_active_interfaces_atomic(
1614 hw, IEEE80211_IFACE_ITER_NORMAL,
1615 mac80211_hwsim_beacon_tx, data);
1616
1617 /* beacon at new TBTT + beacon interval */
1618 if (data->bcn_delta) {
1619 bcn_int -= data->bcn_delta;
1620 data->bcn_delta = 0;
1621 }
1622 hrtimer_forward(&data->beacon_timer, hrtimer_get_expires(timer),
1623 ns_to_ktime(bcn_int * NSEC_PER_USEC));
1624 return HRTIMER_RESTART;
1625 }
1626
1627 static const char * const hwsim_chanwidths[] = {
1628 [NL80211_CHAN_WIDTH_5] = "ht5",
1629 [NL80211_CHAN_WIDTH_10] = "ht10",
1630 [NL80211_CHAN_WIDTH_20_NOHT] = "noht",
1631 [NL80211_CHAN_WIDTH_20] = "ht20",
1632 [NL80211_CHAN_WIDTH_40] = "ht40",
1633 [NL80211_CHAN_WIDTH_80] = "vht80",
1634 [NL80211_CHAN_WIDTH_80P80] = "vht80p80",
1635 [NL80211_CHAN_WIDTH_160] = "vht160",
1636 };
1637
1638 static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
1639 {
1640 struct mac80211_hwsim_data *data = hw->priv;
1641 struct ieee80211_conf *conf = &hw->conf;
1642 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
1643 [IEEE80211_SMPS_AUTOMATIC] = "auto",
1644 [IEEE80211_SMPS_OFF] = "off",
1645 [IEEE80211_SMPS_STATIC] = "static",
1646 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
1647 };
1648 int idx;
1649
1650 if (conf->chandef.chan)
1651 wiphy_dbg(hw->wiphy,
1652 "%s (freq=%d(%d - %d)/%s idle=%d ps=%d smps=%s)\n",
1653 __func__,
1654 conf->chandef.chan->center_freq,
1655 conf->chandef.center_freq1,
1656 conf->chandef.center_freq2,
1657 hwsim_chanwidths[conf->chandef.width],
1658 !!(conf->flags & IEEE80211_CONF_IDLE),
1659 !!(conf->flags & IEEE80211_CONF_PS),
1660 smps_modes[conf->smps_mode]);
1661 else
1662 wiphy_dbg(hw->wiphy,
1663 "%s (freq=0 idle=%d ps=%d smps=%s)\n",
1664 __func__,
1665 !!(conf->flags & IEEE80211_CONF_IDLE),
1666 !!(conf->flags & IEEE80211_CONF_PS),
1667 smps_modes[conf->smps_mode]);
1668
1669 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1670
1671 WARN_ON(conf->chandef.chan && data->use_chanctx);
1672
1673 mutex_lock(&data->mutex);
1674 if (data->scanning && conf->chandef.chan) {
1675 for (idx = 0; idx < ARRAY_SIZE(data->survey_data); idx++) {
1676 if (data->survey_data[idx].channel == data->channel) {
1677 data->survey_data[idx].start =
1678 data->survey_data[idx].next_start;
1679 data->survey_data[idx].end = jiffies;
1680 break;
1681 }
1682 }
1683
1684 data->channel = conf->chandef.chan;
1685
1686 for (idx = 0; idx < ARRAY_SIZE(data->survey_data); idx++) {
1687 if (data->survey_data[idx].channel &&
1688 data->survey_data[idx].channel != data->channel)
1689 continue;
1690 data->survey_data[idx].channel = data->channel;
1691 data->survey_data[idx].next_start = jiffies;
1692 break;
1693 }
1694 } else {
1695 data->channel = conf->chandef.chan;
1696 }
1697 mutex_unlock(&data->mutex);
1698
1699 if (!data->started || !data->beacon_int)
1700 hrtimer_cancel(&data->beacon_timer);
1701 else if (!hrtimer_is_queued(&data->beacon_timer)) {
1702 u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
1703 u32 bcn_int = data->beacon_int;
1704 u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1705
1706 hrtimer_start(&data->beacon_timer,
1707 ns_to_ktime(until_tbtt * NSEC_PER_USEC),
1708 HRTIMER_MODE_REL_SOFT);
1709 }
1710
1711 return 0;
1712 }
1713
1714
1715 static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
1716 unsigned int changed_flags,
1717 unsigned int *total_flags,u64 multicast)
1718 {
1719 struct mac80211_hwsim_data *data = hw->priv;
1720
1721 wiphy_dbg(hw->wiphy, "%s\n", __func__);
1722
1723 data->rx_filter = 0;
1724 if (*total_flags & FIF_ALLMULTI)
1725 data->rx_filter |= FIF_ALLMULTI;
1726
1727 *total_flags = data->rx_filter;
1728 }
1729
1730 static void mac80211_hwsim_bcn_en_iter(void *data, u8 *mac,
1731 struct ieee80211_vif *vif)
1732 {
1733 unsigned int *count = data;
1734 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1735
1736 if (vp->bcn_en)
1737 (*count)++;
1738 }
1739
1740 static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
1741 struct ieee80211_vif *vif,
1742 struct ieee80211_bss_conf *info,
1743 u32 changed)
1744 {
1745 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1746 struct mac80211_hwsim_data *data = hw->priv;
1747
1748 hwsim_check_magic(vif);
1749
1750 wiphy_dbg(hw->wiphy, "%s(changed=0x%x vif->addr=%pM)\n",
1751 __func__, changed, vif->addr);
1752
1753 if (changed & BSS_CHANGED_BSSID) {
1754 wiphy_dbg(hw->wiphy, "%s: BSSID changed: %pM\n",
1755 __func__, info->bssid);
1756 memcpy(vp->bssid, info->bssid, ETH_ALEN);
1757 }
1758
1759 if (changed & BSS_CHANGED_ASSOC) {
1760 wiphy_dbg(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
1761 info->assoc, info->aid);
1762 vp->assoc = info->assoc;
1763 vp->aid = info->aid;
1764 }
1765
1766 if (changed & BSS_CHANGED_BEACON_ENABLED) {
1767 wiphy_dbg(hw->wiphy, " BCN EN: %d (BI=%u)\n",
1768 info->enable_beacon, info->beacon_int);
1769 vp->bcn_en = info->enable_beacon;
1770 if (data->started &&
1771 !hrtimer_is_queued(&data->beacon_timer) &&
1772 info->enable_beacon) {
1773 u64 tsf, until_tbtt;
1774 u32 bcn_int;
1775 data->beacon_int = info->beacon_int * 1024;
1776 tsf = mac80211_hwsim_get_tsf(hw, vif);
1777 bcn_int = data->beacon_int;
1778 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1779
1780 hrtimer_start(&data->beacon_timer,
1781 ns_to_ktime(until_tbtt * NSEC_PER_USEC),
1782 HRTIMER_MODE_REL_SOFT);
1783 } else if (!info->enable_beacon) {
1784 unsigned int count = 0;
1785 ieee80211_iterate_active_interfaces_atomic(
1786 data->hw, IEEE80211_IFACE_ITER_NORMAL,
1787 mac80211_hwsim_bcn_en_iter, &count);
1788 wiphy_dbg(hw->wiphy, " beaconing vifs remaining: %u",
1789 count);
1790 if (count == 0) {
1791 hrtimer_cancel(&data->beacon_timer);
1792 data->beacon_int = 0;
1793 }
1794 }
1795 }
1796
1797 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
1798 wiphy_dbg(hw->wiphy, " ERP_CTS_PROT: %d\n",
1799 info->use_cts_prot);
1800 }
1801
1802 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
1803 wiphy_dbg(hw->wiphy, " ERP_PREAMBLE: %d\n",
1804 info->use_short_preamble);
1805 }
1806
1807 if (changed & BSS_CHANGED_ERP_SLOT) {
1808 wiphy_dbg(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
1809 }
1810
1811 if (changed & BSS_CHANGED_HT) {
1812 wiphy_dbg(hw->wiphy, " HT: op_mode=0x%x\n",
1813 info->ht_operation_mode);
1814 }
1815
1816 if (changed & BSS_CHANGED_BASIC_RATES) {
1817 wiphy_dbg(hw->wiphy, " BASIC_RATES: 0x%llx\n",
1818 (unsigned long long) info->basic_rates);
1819 }
1820
1821 if (changed & BSS_CHANGED_TXPOWER)
1822 wiphy_dbg(hw->wiphy, " TX Power: %d dBm\n", info->txpower);
1823 }
1824
1825 static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
1826 struct ieee80211_vif *vif,
1827 struct ieee80211_sta *sta)
1828 {
1829 hwsim_check_magic(vif);
1830 hwsim_set_sta_magic(sta);
1831
1832 return 0;
1833 }
1834
1835 static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
1836 struct ieee80211_vif *vif,
1837 struct ieee80211_sta *sta)
1838 {
1839 hwsim_check_magic(vif);
1840 hwsim_clear_sta_magic(sta);
1841
1842 return 0;
1843 }
1844
1845 static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
1846 struct ieee80211_vif *vif,
1847 enum sta_notify_cmd cmd,
1848 struct ieee80211_sta *sta)
1849 {
1850 hwsim_check_magic(vif);
1851
1852 switch (cmd) {
1853 case STA_NOTIFY_SLEEP:
1854 case STA_NOTIFY_AWAKE:
1855 /* TODO: make good use of these flags */
1856 break;
1857 default:
1858 WARN(1, "Invalid sta notify: %d\n", cmd);
1859 break;
1860 }
1861 }
1862
1863 static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
1864 struct ieee80211_sta *sta,
1865 bool set)
1866 {
1867 hwsim_check_sta_magic(sta);
1868 return 0;
1869 }
1870
1871 static int mac80211_hwsim_conf_tx(
1872 struct ieee80211_hw *hw,
1873 struct ieee80211_vif *vif, u16 queue,
1874 const struct ieee80211_tx_queue_params *params)
1875 {
1876 wiphy_dbg(hw->wiphy,
1877 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1878 __func__, queue,
1879 params->txop, params->cw_min,
1880 params->cw_max, params->aifs);
1881 return 0;
1882 }
1883
1884 static int mac80211_hwsim_get_survey(struct ieee80211_hw *hw, int idx,
1885 struct survey_info *survey)
1886 {
1887 struct mac80211_hwsim_data *hwsim = hw->priv;
1888
1889 if (idx < 0 || idx >= ARRAY_SIZE(hwsim->survey_data))
1890 return -ENOENT;
1891
1892 mutex_lock(&hwsim->mutex);
1893 survey->channel = hwsim->survey_data[idx].channel;
1894 if (!survey->channel) {
1895 mutex_unlock(&hwsim->mutex);
1896 return -ENOENT;
1897 }
1898
1899 /*
1900 * Magically conjured dummy values --- this is only ok for simulated hardware.
1901 *
1902 * A real driver which cannot determine real values noise MUST NOT
1903 * report any, especially not a magically conjured ones :-)
1904 */
1905 survey->filled = SURVEY_INFO_NOISE_DBM |
1906 SURVEY_INFO_TIME |
1907 SURVEY_INFO_TIME_BUSY;
1908 survey->noise = -92;
1909 survey->time =
1910 jiffies_to_msecs(hwsim->survey_data[idx].end -
1911 hwsim->survey_data[idx].start);
1912 /* report 12.5% of channel time is used */
1913 survey->time_busy = survey->time/8;
1914 mutex_unlock(&hwsim->mutex);
1915
1916 return 0;
1917 }
1918
1919 #ifdef CONFIG_NL80211_TESTMODE
1920 /*
1921 * This section contains example code for using netlink
1922 * attributes with the testmode command in nl80211.
1923 */
1924
1925 /* These enums need to be kept in sync with userspace */
1926 enum hwsim_testmode_attr {
1927 __HWSIM_TM_ATTR_INVALID = 0,
1928 HWSIM_TM_ATTR_CMD = 1,
1929 HWSIM_TM_ATTR_PS = 2,
1930
1931 /* keep last */
1932 __HWSIM_TM_ATTR_AFTER_LAST,
1933 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1934 };
1935
1936 enum hwsim_testmode_cmd {
1937 HWSIM_TM_CMD_SET_PS = 0,
1938 HWSIM_TM_CMD_GET_PS = 1,
1939 HWSIM_TM_CMD_STOP_QUEUES = 2,
1940 HWSIM_TM_CMD_WAKE_QUEUES = 3,
1941 };
1942
1943 static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1944 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1945 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1946 };
1947
1948 static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
1949 struct ieee80211_vif *vif,
1950 void *data, int len)
1951 {
1952 struct mac80211_hwsim_data *hwsim = hw->priv;
1953 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1954 struct sk_buff *skb;
1955 int err, ps;
1956
1957 err = nla_parse_deprecated(tb, HWSIM_TM_ATTR_MAX, data, len,
1958 hwsim_testmode_policy, NULL);
1959 if (err)
1960 return err;
1961
1962 if (!tb[HWSIM_TM_ATTR_CMD])
1963 return -EINVAL;
1964
1965 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1966 case HWSIM_TM_CMD_SET_PS:
1967 if (!tb[HWSIM_TM_ATTR_PS])
1968 return -EINVAL;
1969 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1970 return hwsim_fops_ps_write(hwsim, ps);
1971 case HWSIM_TM_CMD_GET_PS:
1972 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1973 nla_total_size(sizeof(u32)));
1974 if (!skb)
1975 return -ENOMEM;
1976 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
1977 goto nla_put_failure;
1978 return cfg80211_testmode_reply(skb);
1979 case HWSIM_TM_CMD_STOP_QUEUES:
1980 ieee80211_stop_queues(hw);
1981 return 0;
1982 case HWSIM_TM_CMD_WAKE_QUEUES:
1983 ieee80211_wake_queues(hw);
1984 return 0;
1985 default:
1986 return -EOPNOTSUPP;
1987 }
1988
1989 nla_put_failure:
1990 kfree_skb(skb);
1991 return -ENOBUFS;
1992 }
1993 #endif
1994
1995 static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1996 struct ieee80211_vif *vif,
1997 struct ieee80211_ampdu_params *params)
1998 {
1999 struct ieee80211_sta *sta = params->sta;
2000 enum ieee80211_ampdu_mlme_action action = params->action;
2001 u16 tid = params->tid;
2002
2003 switch (action) {
2004 case IEEE80211_AMPDU_TX_START:
2005 return IEEE80211_AMPDU_TX_START_IMMEDIATE;
2006 case IEEE80211_AMPDU_TX_STOP_CONT:
2007 case IEEE80211_AMPDU_TX_STOP_FLUSH:
2008 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
2009 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
2010 break;
2011 case IEEE80211_AMPDU_TX_OPERATIONAL:
2012 break;
2013 case IEEE80211_AMPDU_RX_START:
2014 case IEEE80211_AMPDU_RX_STOP:
2015 break;
2016 default:
2017 return -EOPNOTSUPP;
2018 }
2019
2020 return 0;
2021 }
2022
2023 static void mac80211_hwsim_flush(struct ieee80211_hw *hw,
2024 struct ieee80211_vif *vif,
2025 u32 queues, bool drop)
2026 {
2027 /* Not implemented, queues only on kernel side */
2028 }
2029
2030 static void hw_scan_work(struct work_struct *work)
2031 {
2032 struct mac80211_hwsim_data *hwsim =
2033 container_of(work, struct mac80211_hwsim_data, hw_scan.work);
2034 struct cfg80211_scan_request *req = hwsim->hw_scan_request;
2035 int dwell, i;
2036
2037 mutex_lock(&hwsim->mutex);
2038 if (hwsim->scan_chan_idx >= req->n_channels) {
2039 struct cfg80211_scan_info info = {
2040 .aborted = false,
2041 };
2042
2043 wiphy_dbg(hwsim->hw->wiphy, "hw scan complete\n");
2044 ieee80211_scan_completed(hwsim->hw, &info);
2045 hwsim->hw_scan_request = NULL;
2046 hwsim->hw_scan_vif = NULL;
2047 hwsim->tmp_chan = NULL;
2048 mutex_unlock(&hwsim->mutex);
2049 return;
2050 }
2051
2052 wiphy_dbg(hwsim->hw->wiphy, "hw scan %d MHz\n",
2053 req->channels[hwsim->scan_chan_idx]->center_freq);
2054
2055 hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
2056 if (hwsim->tmp_chan->flags & (IEEE80211_CHAN_NO_IR |
2057 IEEE80211_CHAN_RADAR) ||
2058 !req->n_ssids) {
2059 dwell = 120;
2060 } else {
2061 dwell = 30;
2062 /* send probes */
2063 for (i = 0; i < req->n_ssids; i++) {
2064 struct sk_buff *probe;
2065 struct ieee80211_mgmt *mgmt;
2066
2067 probe = ieee80211_probereq_get(hwsim->hw,
2068 hwsim->scan_addr,
2069 req->ssids[i].ssid,
2070 req->ssids[i].ssid_len,
2071 req->ie_len);
2072 if (!probe)
2073 continue;
2074
2075 mgmt = (struct ieee80211_mgmt *) probe->data;
2076 memcpy(mgmt->da, req->bssid, ETH_ALEN);
2077 memcpy(mgmt->bssid, req->bssid, ETH_ALEN);
2078
2079 if (req->ie_len)
2080 skb_put_data(probe, req->ie, req->ie_len);
2081
2082 local_bh_disable();
2083 mac80211_hwsim_tx_frame(hwsim->hw, probe,
2084 hwsim->tmp_chan);
2085 local_bh_enable();
2086 }
2087 }
2088 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
2089 msecs_to_jiffies(dwell));
2090 hwsim->survey_data[hwsim->scan_chan_idx].channel = hwsim->tmp_chan;
2091 hwsim->survey_data[hwsim->scan_chan_idx].start = jiffies;
2092 hwsim->survey_data[hwsim->scan_chan_idx].end =
2093 jiffies + msecs_to_jiffies(dwell);
2094 hwsim->scan_chan_idx++;
2095 mutex_unlock(&hwsim->mutex);
2096 }
2097
2098 static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
2099 struct ieee80211_vif *vif,
2100 struct ieee80211_scan_request *hw_req)
2101 {
2102 struct mac80211_hwsim_data *hwsim = hw->priv;
2103 struct cfg80211_scan_request *req = &hw_req->req;
2104
2105 mutex_lock(&hwsim->mutex);
2106 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
2107 mutex_unlock(&hwsim->mutex);
2108 return -EBUSY;
2109 }
2110 hwsim->hw_scan_request = req;
2111 hwsim->hw_scan_vif = vif;
2112 hwsim->scan_chan_idx = 0;
2113 if (req->flags & NL80211_SCAN_FLAG_RANDOM_ADDR)
2114 get_random_mask_addr(hwsim->scan_addr,
2115 hw_req->req.mac_addr,
2116 hw_req->req.mac_addr_mask);
2117 else
2118 memcpy(hwsim->scan_addr, vif->addr, ETH_ALEN);
2119 memset(hwsim->survey_data, 0, sizeof(hwsim->survey_data));
2120 mutex_unlock(&hwsim->mutex);
2121
2122 wiphy_dbg(hw->wiphy, "hwsim hw_scan request\n");
2123
2124 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
2125
2126 return 0;
2127 }
2128
2129 static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
2130 struct ieee80211_vif *vif)
2131 {
2132 struct mac80211_hwsim_data *hwsim = hw->priv;
2133 struct cfg80211_scan_info info = {
2134 .aborted = true,
2135 };
2136
2137 wiphy_dbg(hw->wiphy, "hwsim cancel_hw_scan\n");
2138
2139 cancel_delayed_work_sync(&hwsim->hw_scan);
2140
2141 mutex_lock(&hwsim->mutex);
2142 ieee80211_scan_completed(hwsim->hw, &info);
2143 hwsim->tmp_chan = NULL;
2144 hwsim->hw_scan_request = NULL;
2145 hwsim->hw_scan_vif = NULL;
2146 mutex_unlock(&hwsim->mutex);
2147 }
2148
2149 static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw,
2150 struct ieee80211_vif *vif,
2151 const u8 *mac_addr)
2152 {
2153 struct mac80211_hwsim_data *hwsim = hw->priv;
2154
2155 mutex_lock(&hwsim->mutex);
2156
2157 if (hwsim->scanning) {
2158 pr_debug("two hwsim sw_scans detected!\n");
2159 goto out;
2160 }
2161
2162 pr_debug("hwsim sw_scan request, prepping stuff\n");
2163
2164 memcpy(hwsim->scan_addr, mac_addr, ETH_ALEN);
2165 hwsim->scanning = true;
2166 memset(hwsim->survey_data, 0, sizeof(hwsim->survey_data));
2167
2168 out:
2169 mutex_unlock(&hwsim->mutex);
2170 }
2171
2172 static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw,
2173 struct ieee80211_vif *vif)
2174 {
2175 struct mac80211_hwsim_data *hwsim = hw->priv;
2176
2177 mutex_lock(&hwsim->mutex);
2178
2179 pr_debug("hwsim sw_scan_complete\n");
2180 hwsim->scanning = false;
2181 eth_zero_addr(hwsim->scan_addr);
2182
2183 mutex_unlock(&hwsim->mutex);
2184 }
2185
2186 static void hw_roc_start(struct work_struct *work)
2187 {
2188 struct mac80211_hwsim_data *hwsim =
2189 container_of(work, struct mac80211_hwsim_data, roc_start.work);
2190
2191 mutex_lock(&hwsim->mutex);
2192
2193 wiphy_dbg(hwsim->hw->wiphy, "hwsim ROC begins\n");
2194 hwsim->tmp_chan = hwsim->roc_chan;
2195 ieee80211_ready_on_channel(hwsim->hw);
2196
2197 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->roc_done,
2198 msecs_to_jiffies(hwsim->roc_duration));
2199
2200 mutex_unlock(&hwsim->mutex);
2201 }
2202
2203 static void hw_roc_done(struct work_struct *work)
2204 {
2205 struct mac80211_hwsim_data *hwsim =
2206 container_of(work, struct mac80211_hwsim_data, roc_done.work);
2207
2208 mutex_lock(&hwsim->mutex);
2209 ieee80211_remain_on_channel_expired(hwsim->hw);
2210 hwsim->tmp_chan = NULL;
2211 mutex_unlock(&hwsim->mutex);
2212
2213 wiphy_dbg(hwsim->hw->wiphy, "hwsim ROC expired\n");
2214 }
2215
2216 static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
2217 struct ieee80211_vif *vif,
2218 struct ieee80211_channel *chan,
2219 int duration,
2220 enum ieee80211_roc_type type)
2221 {
2222 struct mac80211_hwsim_data *hwsim = hw->priv;
2223
2224 mutex_lock(&hwsim->mutex);
2225 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
2226 mutex_unlock(&hwsim->mutex);
2227 return -EBUSY;
2228 }
2229
2230 hwsim->roc_chan = chan;
2231 hwsim->roc_duration = duration;
2232 mutex_unlock(&hwsim->mutex);
2233
2234 wiphy_dbg(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
2235 chan->center_freq, duration);
2236 ieee80211_queue_delayed_work(hw, &hwsim->roc_start, HZ/50);
2237
2238 return 0;
2239 }
2240
2241 static int mac80211_hwsim_croc(struct ieee80211_hw *hw,
2242 struct ieee80211_vif *vif)
2243 {
2244 struct mac80211_hwsim_data *hwsim = hw->priv;
2245
2246 cancel_delayed_work_sync(&hwsim->roc_start);
2247 cancel_delayed_work_sync(&hwsim->roc_done);
2248
2249 mutex_lock(&hwsim->mutex);
2250 hwsim->tmp_chan = NULL;
2251 mutex_unlock(&hwsim->mutex);
2252
2253 wiphy_dbg(hw->wiphy, "hwsim ROC canceled\n");
2254
2255 return 0;
2256 }
2257
2258 static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
2259 struct ieee80211_chanctx_conf *ctx)
2260 {
2261 hwsim_set_chanctx_magic(ctx);
2262 wiphy_dbg(hw->wiphy,
2263 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2264 ctx->def.chan->center_freq, ctx->def.width,
2265 ctx->def.center_freq1, ctx->def.center_freq2);
2266 return 0;
2267 }
2268
2269 static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
2270 struct ieee80211_chanctx_conf *ctx)
2271 {
2272 wiphy_dbg(hw->wiphy,
2273 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2274 ctx->def.chan->center_freq, ctx->def.width,
2275 ctx->def.center_freq1, ctx->def.center_freq2);
2276 hwsim_check_chanctx_magic(ctx);
2277 hwsim_clear_chanctx_magic(ctx);
2278 }
2279
2280 static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
2281 struct ieee80211_chanctx_conf *ctx,
2282 u32 changed)
2283 {
2284 hwsim_check_chanctx_magic(ctx);
2285 wiphy_dbg(hw->wiphy,
2286 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2287 ctx->def.chan->center_freq, ctx->def.width,
2288 ctx->def.center_freq1, ctx->def.center_freq2);
2289 }
2290
2291 static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
2292 struct ieee80211_vif *vif,
2293 struct ieee80211_chanctx_conf *ctx)
2294 {
2295 hwsim_check_magic(vif);
2296 hwsim_check_chanctx_magic(ctx);
2297
2298 return 0;
2299 }
2300
2301 static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
2302 struct ieee80211_vif *vif,
2303 struct ieee80211_chanctx_conf *ctx)
2304 {
2305 hwsim_check_magic(vif);
2306 hwsim_check_chanctx_magic(ctx);
2307 }
2308
2309 static const char mac80211_hwsim_gstrings_stats[][ETH_GSTRING_LEN] = {
2310 "tx_pkts_nic",
2311 "tx_bytes_nic",
2312 "rx_pkts_nic",
2313 "rx_bytes_nic",
2314 "d_tx_dropped",
2315 "d_tx_failed",
2316 "d_ps_mode",
2317 "d_group",
2318 };
2319
2320 #define MAC80211_HWSIM_SSTATS_LEN ARRAY_SIZE(mac80211_hwsim_gstrings_stats)
2321
2322 static void mac80211_hwsim_get_et_strings(struct ieee80211_hw *hw,
2323 struct ieee80211_vif *vif,
2324 u32 sset, u8 *data)
2325 {
2326 if (sset == ETH_SS_STATS)
2327 memcpy(data, *mac80211_hwsim_gstrings_stats,
2328 sizeof(mac80211_hwsim_gstrings_stats));
2329 }
2330
2331 static int mac80211_hwsim_get_et_sset_count(struct ieee80211_hw *hw,
2332 struct ieee80211_vif *vif, int sset)
2333 {
2334 if (sset == ETH_SS_STATS)
2335 return MAC80211_HWSIM_SSTATS_LEN;
2336 return 0;
2337 }
2338
2339 static void mac80211_hwsim_get_et_stats(struct ieee80211_hw *hw,
2340 struct ieee80211_vif *vif,
2341 struct ethtool_stats *stats, u64 *data)
2342 {
2343 struct mac80211_hwsim_data *ar = hw->priv;
2344 int i = 0;
2345
2346 data[i++] = ar->tx_pkts;
2347 data[i++] = ar->tx_bytes;
2348 data[i++] = ar->rx_pkts;
2349 data[i++] = ar->rx_bytes;
2350 data[i++] = ar->tx_dropped;
2351 data[i++] = ar->tx_failed;
2352 data[i++] = ar->ps;
2353 data[i++] = ar->group;
2354
2355 WARN_ON(i != MAC80211_HWSIM_SSTATS_LEN);
2356 }
2357
2358 #define HWSIM_COMMON_OPS \
2359 .tx = mac80211_hwsim_tx, \
2360 .start = mac80211_hwsim_start, \
2361 .stop = mac80211_hwsim_stop, \
2362 .add_interface = mac80211_hwsim_add_interface, \
2363 .change_interface = mac80211_hwsim_change_interface, \
2364 .remove_interface = mac80211_hwsim_remove_interface, \
2365 .config = mac80211_hwsim_config, \
2366 .configure_filter = mac80211_hwsim_configure_filter, \
2367 .bss_info_changed = mac80211_hwsim_bss_info_changed, \
2368 .sta_add = mac80211_hwsim_sta_add, \
2369 .sta_remove = mac80211_hwsim_sta_remove, \
2370 .sta_notify = mac80211_hwsim_sta_notify, \
2371 .set_tim = mac80211_hwsim_set_tim, \
2372 .conf_tx = mac80211_hwsim_conf_tx, \
2373 .get_survey = mac80211_hwsim_get_survey, \
2374 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd) \
2375 .ampdu_action = mac80211_hwsim_ampdu_action, \
2376 .flush = mac80211_hwsim_flush, \
2377 .get_tsf = mac80211_hwsim_get_tsf, \
2378 .set_tsf = mac80211_hwsim_set_tsf, \
2379 .get_et_sset_count = mac80211_hwsim_get_et_sset_count, \
2380 .get_et_stats = mac80211_hwsim_get_et_stats, \
2381 .get_et_strings = mac80211_hwsim_get_et_strings,
2382
2383 static const struct ieee80211_ops mac80211_hwsim_ops = {
2384 HWSIM_COMMON_OPS
2385 .sw_scan_start = mac80211_hwsim_sw_scan,
2386 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
2387 };
2388
2389 static const struct ieee80211_ops mac80211_hwsim_mchan_ops = {
2390 HWSIM_COMMON_OPS
2391 .hw_scan = mac80211_hwsim_hw_scan,
2392 .cancel_hw_scan = mac80211_hwsim_cancel_hw_scan,
2393 .sw_scan_start = NULL,
2394 .sw_scan_complete = NULL,
2395 .remain_on_channel = mac80211_hwsim_roc,
2396 .cancel_remain_on_channel = mac80211_hwsim_croc,
2397 .add_chanctx = mac80211_hwsim_add_chanctx,
2398 .remove_chanctx = mac80211_hwsim_remove_chanctx,
2399 .change_chanctx = mac80211_hwsim_change_chanctx,
2400 .assign_vif_chanctx = mac80211_hwsim_assign_vif_chanctx,
2401 .unassign_vif_chanctx = mac80211_hwsim_unassign_vif_chanctx,
2402 };
2403
2404 struct hwsim_new_radio_params {
2405 unsigned int channels;
2406 const char *reg_alpha2;
2407 const struct ieee80211_regdomain *regd;
2408 bool reg_strict;
2409 bool p2p_device;
2410 bool use_chanctx;
2411 bool destroy_on_close;
2412 const char *hwname;
2413 bool no_vif;
2414 const u8 *perm_addr;
2415 u32 iftypes;
2416 u32 *ciphers;
2417 u8 n_ciphers;
2418 };
2419
2420 static void hwsim_mcast_config_msg(struct sk_buff *mcast_skb,
2421 struct genl_info *info)
2422 {
2423 if (info)
2424 genl_notify(&hwsim_genl_family, mcast_skb, info,
2425 HWSIM_MCGRP_CONFIG, GFP_KERNEL);
2426 else
2427 genlmsg_multicast(&hwsim_genl_family, mcast_skb, 0,
2428 HWSIM_MCGRP_CONFIG, GFP_KERNEL);
2429 }
2430
2431 static int append_radio_msg(struct sk_buff *skb, int id,
2432 struct hwsim_new_radio_params *param)
2433 {
2434 int ret;
2435
2436 ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
2437 if (ret < 0)
2438 return ret;
2439
2440 if (param->channels) {
2441 ret = nla_put_u32(skb, HWSIM_ATTR_CHANNELS, param->channels);
2442 if (ret < 0)
2443 return ret;
2444 }
2445
2446 if (param->reg_alpha2) {
2447 ret = nla_put(skb, HWSIM_ATTR_REG_HINT_ALPHA2, 2,
2448 param->reg_alpha2);
2449 if (ret < 0)
2450 return ret;
2451 }
2452
2453 if (param->regd) {
2454 int i;
2455
2456 for (i = 0; i < ARRAY_SIZE(hwsim_world_regdom_custom); i++) {
2457 if (hwsim_world_regdom_custom[i] != param->regd)
2458 continue;
2459
2460 ret = nla_put_u32(skb, HWSIM_ATTR_REG_CUSTOM_REG, i);
2461 if (ret < 0)
2462 return ret;
2463 break;
2464 }
2465 }
2466
2467 if (param->reg_strict) {
2468 ret = nla_put_flag(skb, HWSIM_ATTR_REG_STRICT_REG);
2469 if (ret < 0)
2470 return ret;
2471 }
2472
2473 if (param->p2p_device) {
2474 ret = nla_put_flag(skb, HWSIM_ATTR_SUPPORT_P2P_DEVICE);
2475 if (ret < 0)
2476 return ret;
2477 }
2478
2479 if (param->use_chanctx) {
2480 ret = nla_put_flag(skb, HWSIM_ATTR_USE_CHANCTX);
2481 if (ret < 0)
2482 return ret;
2483 }
2484
2485 if (param->hwname) {
2486 ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME,
2487 strlen(param->hwname), param->hwname);
2488 if (ret < 0)
2489 return ret;
2490 }
2491
2492 return 0;
2493 }
2494
2495 static void hwsim_mcast_new_radio(int id, struct genl_info *info,
2496 struct hwsim_new_radio_params *param)
2497 {
2498 struct sk_buff *mcast_skb;
2499 void *data;
2500
2501 mcast_skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
2502 if (!mcast_skb)
2503 return;
2504
2505 data = genlmsg_put(mcast_skb, 0, 0, &hwsim_genl_family, 0,
2506 HWSIM_CMD_NEW_RADIO);
2507 if (!data)
2508 goto out_err;
2509
2510 if (append_radio_msg(mcast_skb, id, param) < 0)
2511 goto out_err;
2512
2513 genlmsg_end(mcast_skb, data);
2514
2515 hwsim_mcast_config_msg(mcast_skb, info);
2516 return;
2517
2518 out_err:
2519 nlmsg_free(mcast_skb);
2520 }
2521
2522 static const struct ieee80211_sband_iftype_data he_capa_2ghz[] = {
2523 {
2524 /* TODO: should we support other types, e.g., P2P?*/
2525 .types_mask = BIT(NL80211_IFTYPE_STATION) |
2526 BIT(NL80211_IFTYPE_AP),
2527 .he_cap = {
2528 .has_he = true,
2529 .he_cap_elem = {
2530 .mac_cap_info[0] =
2531 IEEE80211_HE_MAC_CAP0_HTC_HE,
2532 .mac_cap_info[1] =
2533 IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US |
2534 IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
2535 .mac_cap_info[2] =
2536 IEEE80211_HE_MAC_CAP2_BSR |
2537 IEEE80211_HE_MAC_CAP2_MU_CASCADING |
2538 IEEE80211_HE_MAC_CAP2_ACK_EN,
2539 .mac_cap_info[3] =
2540 IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
2541 IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_VHT_2,
2542 .mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMDSU_IN_AMPDU,
2543 .phy_cap_info[1] =
2544 IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
2545 IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
2546 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
2547 IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
2548 .phy_cap_info[2] =
2549 IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US |
2550 IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ |
2551 IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ |
2552 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO |
2553 IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO,
2554
2555 /* Leave all the other PHY capability bytes
2556 * unset, as DCM, beam forming, RU and PPE
2557 * threshold information are not supported
2558 */
2559 },
2560 .he_mcs_nss_supp = {
2561 .rx_mcs_80 = cpu_to_le16(0xfffa),
2562 .tx_mcs_80 = cpu_to_le16(0xfffa),
2563 .rx_mcs_160 = cpu_to_le16(0xffff),
2564 .tx_mcs_160 = cpu_to_le16(0xffff),
2565 .rx_mcs_80p80 = cpu_to_le16(0xffff),
2566 .tx_mcs_80p80 = cpu_to_le16(0xffff),
2567 },
2568 },
2569 },
2570 #ifdef CONFIG_MAC80211_MESH
2571 {
2572 /* TODO: should we support other types, e.g., IBSS?*/
2573 .types_mask = BIT(NL80211_IFTYPE_MESH_POINT),
2574 .he_cap = {
2575 .has_he = true,
2576 .he_cap_elem = {
2577 .mac_cap_info[0] =
2578 IEEE80211_HE_MAC_CAP0_HTC_HE,
2579 .mac_cap_info[1] =
2580 IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
2581 .mac_cap_info[2] =
2582 IEEE80211_HE_MAC_CAP2_ACK_EN,
2583 .mac_cap_info[3] =
2584 IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
2585 IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_VHT_2,
2586 .mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMDSU_IN_AMPDU,
2587 .phy_cap_info[1] =
2588 IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
2589 IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
2590 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
2591 IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
2592 .phy_cap_info[2] = 0,
2593
2594 /* Leave all the other PHY capability bytes
2595 * unset, as DCM, beam forming, RU and PPE
2596 * threshold information are not supported
2597 */
2598 },
2599 .he_mcs_nss_supp = {
2600 .rx_mcs_80 = cpu_to_le16(0xfffa),
2601 .tx_mcs_80 = cpu_to_le16(0xfffa),
2602 .rx_mcs_160 = cpu_to_le16(0xffff),
2603 .tx_mcs_160 = cpu_to_le16(0xffff),
2604 .rx_mcs_80p80 = cpu_to_le16(0xffff),
2605 .tx_mcs_80p80 = cpu_to_le16(0xffff),
2606 },
2607 },
2608 },
2609 #endif
2610 };
2611
2612 static const struct ieee80211_sband_iftype_data he_capa_5ghz[] = {
2613 {
2614 /* TODO: should we support other types, e.g., P2P?*/
2615 .types_mask = BIT(NL80211_IFTYPE_STATION) |
2616 BIT(NL80211_IFTYPE_AP),
2617 .he_cap = {
2618 .has_he = true,
2619 .he_cap_elem = {
2620 .mac_cap_info[0] =
2621 IEEE80211_HE_MAC_CAP0_HTC_HE,
2622 .mac_cap_info[1] =
2623 IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US |
2624 IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
2625 .mac_cap_info[2] =
2626 IEEE80211_HE_MAC_CAP2_BSR |
2627 IEEE80211_HE_MAC_CAP2_MU_CASCADING |
2628 IEEE80211_HE_MAC_CAP2_ACK_EN,
2629 .mac_cap_info[3] =
2630 IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
2631 IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_VHT_2,
2632 .mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMDSU_IN_AMPDU,
2633 .phy_cap_info[0] =
2634 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G |
2635 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G |
2636 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
2637 .phy_cap_info[1] =
2638 IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
2639 IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
2640 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
2641 IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
2642 .phy_cap_info[2] =
2643 IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US |
2644 IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ |
2645 IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ |
2646 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO |
2647 IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO,
2648
2649 /* Leave all the other PHY capability bytes
2650 * unset, as DCM, beam forming, RU and PPE
2651 * threshold information are not supported
2652 */
2653 },
2654 .he_mcs_nss_supp = {
2655 .rx_mcs_80 = cpu_to_le16(0xfffa),
2656 .tx_mcs_80 = cpu_to_le16(0xfffa),
2657 .rx_mcs_160 = cpu_to_le16(0xfffa),
2658 .tx_mcs_160 = cpu_to_le16(0xfffa),
2659 .rx_mcs_80p80 = cpu_to_le16(0xfffa),
2660 .tx_mcs_80p80 = cpu_to_le16(0xfffa),
2661 },
2662 },
2663 },
2664 #ifdef CONFIG_MAC80211_MESH
2665 {
2666 /* TODO: should we support other types, e.g., IBSS?*/
2667 .types_mask = BIT(NL80211_IFTYPE_MESH_POINT),
2668 .he_cap = {
2669 .has_he = true,
2670 .he_cap_elem = {
2671 .mac_cap_info[0] =
2672 IEEE80211_HE_MAC_CAP0_HTC_HE,
2673 .mac_cap_info[1] =
2674 IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
2675 .mac_cap_info[2] =
2676 IEEE80211_HE_MAC_CAP2_ACK_EN,
2677 .mac_cap_info[3] =
2678 IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
2679 IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_VHT_2,
2680 .mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMDSU_IN_AMPDU,
2681 .phy_cap_info[0] =
2682 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G |
2683 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G |
2684 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
2685 .phy_cap_info[1] =
2686 IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
2687 IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
2688 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
2689 IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
2690 .phy_cap_info[2] = 0,
2691
2692 /* Leave all the other PHY capability bytes
2693 * unset, as DCM, beam forming, RU and PPE
2694 * threshold information are not supported
2695 */
2696 },
2697 .he_mcs_nss_supp = {
2698 .rx_mcs_80 = cpu_to_le16(0xfffa),
2699 .tx_mcs_80 = cpu_to_le16(0xfffa),
2700 .rx_mcs_160 = cpu_to_le16(0xfffa),
2701 .tx_mcs_160 = cpu_to_le16(0xfffa),
2702 .rx_mcs_80p80 = cpu_to_le16(0xfffa),
2703 .tx_mcs_80p80 = cpu_to_le16(0xfffa),
2704 },
2705 },
2706 },
2707 #endif
2708 };
2709
2710 static void mac80211_hwsim_he_capab(struct ieee80211_supported_band *sband)
2711 {
2712 u16 n_iftype_data;
2713
2714 if (sband->band == NL80211_BAND_2GHZ) {
2715 n_iftype_data = ARRAY_SIZE(he_capa_2ghz);
2716 sband->iftype_data =
2717 (struct ieee80211_sband_iftype_data *)he_capa_2ghz;
2718 } else if (sband->band == NL80211_BAND_5GHZ) {
2719 n_iftype_data = ARRAY_SIZE(he_capa_5ghz);
2720 sband->iftype_data =
2721 (struct ieee80211_sband_iftype_data *)he_capa_5ghz;
2722 } else {
2723 return;
2724 }
2725
2726 sband->n_iftype_data = n_iftype_data;
2727 }
2728
2729 #ifdef CONFIG_MAC80211_MESH
2730 #define HWSIM_MESH_BIT BIT(NL80211_IFTYPE_MESH_POINT)
2731 #else
2732 #define HWSIM_MESH_BIT 0
2733 #endif
2734
2735 #define HWSIM_DEFAULT_IF_LIMIT \
2736 (BIT(NL80211_IFTYPE_STATION) | \
2737 BIT(NL80211_IFTYPE_P2P_CLIENT) | \
2738 BIT(NL80211_IFTYPE_AP) | \
2739 BIT(NL80211_IFTYPE_P2P_GO) | \
2740 HWSIM_MESH_BIT)
2741
2742 #define HWSIM_IFTYPE_SUPPORT_MASK \
2743 (BIT(NL80211_IFTYPE_STATION) | \
2744 BIT(NL80211_IFTYPE_AP) | \
2745 BIT(NL80211_IFTYPE_P2P_CLIENT) | \
2746 BIT(NL80211_IFTYPE_P2P_GO) | \
2747 BIT(NL80211_IFTYPE_ADHOC) | \
2748 BIT(NL80211_IFTYPE_MESH_POINT) | \
2749 BIT(NL80211_IFTYPE_OCB))
2750
2751 static int mac80211_hwsim_new_radio(struct genl_info *info,
2752 struct hwsim_new_radio_params *param)
2753 {
2754 int err;
2755 u8 addr[ETH_ALEN];
2756 struct mac80211_hwsim_data *data;
2757 struct ieee80211_hw *hw;
2758 enum nl80211_band band;
2759 const struct ieee80211_ops *ops = &mac80211_hwsim_ops;
2760 struct net *net;
2761 int idx, i;
2762 int n_limits = 0;
2763
2764 if (WARN_ON(param->channels > 1 && !param->use_chanctx))
2765 return -EINVAL;
2766
2767 spin_lock_bh(&hwsim_radio_lock);
2768 idx = hwsim_radio_idx++;
2769 spin_unlock_bh(&hwsim_radio_lock);
2770
2771 if (param->use_chanctx)
2772 ops = &mac80211_hwsim_mchan_ops;
2773 hw = ieee80211_alloc_hw_nm(sizeof(*data), ops, param->hwname);
2774 if (!hw) {
2775 pr_debug("mac80211_hwsim: ieee80211_alloc_hw failed\n");
2776 err = -ENOMEM;
2777 goto failed;
2778 }
2779
2780 /* ieee80211_alloc_hw_nm may have used a default name */
2781 param->hwname = wiphy_name(hw->wiphy);
2782
2783 if (info)
2784 net = genl_info_net(info);
2785 else
2786 net = &init_net;
2787 wiphy_net_set(hw->wiphy, net);
2788
2789 data = hw->priv;
2790 data->hw = hw;
2791
2792 data->dev = device_create(hwsim_class, NULL, 0, hw, "hwsim%d", idx);
2793 if (IS_ERR(data->dev)) {
2794 printk(KERN_DEBUG
2795 "mac80211_hwsim: device_create failed (%ld)\n",
2796 PTR_ERR(data->dev));
2797 err = -ENOMEM;
2798 goto failed_drvdata;
2799 }
2800 data->dev->driver = &mac80211_hwsim_driver.driver;
2801 err = device_bind_driver(data->dev);
2802 if (err != 0) {
2803 pr_debug("mac80211_hwsim: device_bind_driver failed (%d)\n",
2804 err);
2805 goto failed_bind;
2806 }
2807
2808 skb_queue_head_init(&data->pending);
2809
2810 SET_IEEE80211_DEV(hw, data->dev);
2811 if (!param->perm_addr) {
2812 eth_zero_addr(addr);
2813 addr[0] = 0x02;
2814 addr[3] = idx >> 8;
2815 addr[4] = idx;
2816 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
2817 /* Why need here second address ? */
2818 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
2819 data->addresses[1].addr[0] |= 0x40;
2820 hw->wiphy->n_addresses = 2;
2821 hw->wiphy->addresses = data->addresses;
2822 /* possible address clash is checked at hash table insertion */
2823 } else {
2824 memcpy(data->addresses[0].addr, param->perm_addr, ETH_ALEN);
2825 /* compatibility with automatically generated mac addr */
2826 memcpy(data->addresses[1].addr, param->perm_addr, ETH_ALEN);
2827 hw->wiphy->n_addresses = 2;
2828 hw->wiphy->addresses = data->addresses;
2829 }
2830
2831 data->channels = param->channels;
2832 data->use_chanctx = param->use_chanctx;
2833 data->idx = idx;
2834 data->destroy_on_close = param->destroy_on_close;
2835 if (info)
2836 data->portid = info->snd_portid;
2837
2838 /* setup interface limits, only on interface types we support */
2839 if (param->iftypes & BIT(NL80211_IFTYPE_ADHOC)) {
2840 data->if_limits[n_limits].max = 1;
2841 data->if_limits[n_limits].types = BIT(NL80211_IFTYPE_ADHOC);
2842 n_limits++;
2843 }
2844
2845 if (param->iftypes & HWSIM_DEFAULT_IF_LIMIT) {
2846 data->if_limits[n_limits].max = 2048;
2847 /*
2848 * For this case, we may only support a subset of
2849 * HWSIM_DEFAULT_IF_LIMIT, therefore we only want to add the
2850 * bits that both param->iftype & HWSIM_DEFAULT_IF_LIMIT have.
2851 */
2852 data->if_limits[n_limits].types =
2853 HWSIM_DEFAULT_IF_LIMIT & param->iftypes;
2854 n_limits++;
2855 }
2856
2857 if (param->iftypes & BIT(NL80211_IFTYPE_P2P_DEVICE)) {
2858 data->if_limits[n_limits].max = 1;
2859 data->if_limits[n_limits].types =
2860 BIT(NL80211_IFTYPE_P2P_DEVICE);
2861 n_limits++;
2862 }
2863
2864 if (data->use_chanctx) {
2865 hw->wiphy->max_scan_ssids = 255;
2866 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
2867 hw->wiphy->max_remain_on_channel_duration = 1000;
2868 data->if_combination.radar_detect_widths = 0;
2869 data->if_combination.num_different_channels = data->channels;
2870 } else {
2871 data->if_combination.num_different_channels = 1;
2872 data->if_combination.radar_detect_widths =
2873 BIT(NL80211_CHAN_WIDTH_5) |
2874 BIT(NL80211_CHAN_WIDTH_10) |
2875 BIT(NL80211_CHAN_WIDTH_20_NOHT) |
2876 BIT(NL80211_CHAN_WIDTH_20) |
2877 BIT(NL80211_CHAN_WIDTH_40) |
2878 BIT(NL80211_CHAN_WIDTH_80) |
2879 BIT(NL80211_CHAN_WIDTH_160);
2880 }
2881
2882 if (!n_limits) {
2883 err = -EINVAL;
2884 goto failed_hw;
2885 }
2886
2887 data->if_combination.max_interfaces = 0;
2888 for (i = 0; i < n_limits; i++)
2889 data->if_combination.max_interfaces +=
2890 data->if_limits[i].max;
2891
2892 data->if_combination.n_limits = n_limits;
2893 data->if_combination.limits = data->if_limits;
2894
2895 /*
2896 * If we actually were asked to support combinations,
2897 * advertise them - if there's only a single thing like
2898 * only IBSS then don't advertise it as combinations.
2899 */
2900 if (data->if_combination.max_interfaces > 1) {
2901 hw->wiphy->iface_combinations = &data->if_combination;
2902 hw->wiphy->n_iface_combinations = 1;
2903 }
2904
2905 if (param->ciphers) {
2906 memcpy(data->ciphers, param->ciphers,
2907 param->n_ciphers * sizeof(u32));
2908 hw->wiphy->cipher_suites = data->ciphers;
2909 hw->wiphy->n_cipher_suites = param->n_ciphers;
2910 }
2911
2912 INIT_DELAYED_WORK(&data->roc_start, hw_roc_start);
2913 INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
2914 INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
2915
2916 hw->queues = 5;
2917 hw->offchannel_tx_hw_queue = 4;
2918
2919 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
2920 ieee80211_hw_set(hw, CHANCTX_STA_CSA);
2921 ieee80211_hw_set(hw, SUPPORTS_HT_CCK_RATES);
2922 ieee80211_hw_set(hw, QUEUE_CONTROL);
2923 ieee80211_hw_set(hw, WANT_MONITOR_VIF);
2924 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
2925 ieee80211_hw_set(hw, MFP_CAPABLE);
2926 ieee80211_hw_set(hw, SIGNAL_DBM);
2927 ieee80211_hw_set(hw, SUPPORTS_PS);
2928 ieee80211_hw_set(hw, TDLS_WIDER_BW);
2929 if (rctbl)
2930 ieee80211_hw_set(hw, SUPPORTS_RC_TABLE);
2931 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID);
2932
2933 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2934 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
2935 WIPHY_FLAG_AP_UAPSD |
2936 WIPHY_FLAG_HAS_CHANNEL_SWITCH;
2937 hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR |
2938 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
2939 NL80211_FEATURE_STATIC_SMPS |
2940 NL80211_FEATURE_DYNAMIC_SMPS |
2941 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
2942 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS);
2943
2944 hw->wiphy->interface_modes = param->iftypes;
2945
2946 /* ask mac80211 to reserve space for magic */
2947 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
2948 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
2949 hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
2950
2951 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
2952 sizeof(hwsim_channels_2ghz));
2953 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
2954 sizeof(hwsim_channels_5ghz));
2955 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
2956
2957 for (band = NL80211_BAND_2GHZ; band < NUM_NL80211_BANDS; band++) {
2958 struct ieee80211_supported_band *sband = &data->bands[band];
2959
2960 sband->band = band;
2961
2962 switch (band) {
2963 case NL80211_BAND_2GHZ:
2964 sband->channels = data->channels_2ghz;
2965 sband->n_channels = ARRAY_SIZE(hwsim_channels_2ghz);
2966 sband->bitrates = data->rates;
2967 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
2968 break;
2969 case NL80211_BAND_5GHZ:
2970 sband->channels = data->channels_5ghz;
2971 sband->n_channels = ARRAY_SIZE(hwsim_channels_5ghz);
2972 sband->bitrates = data->rates + 4;
2973 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
2974
2975 sband->vht_cap.vht_supported = true;
2976 sband->vht_cap.cap =
2977 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
2978 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
2979 IEEE80211_VHT_CAP_RXLDPC |
2980 IEEE80211_VHT_CAP_SHORT_GI_80 |
2981 IEEE80211_VHT_CAP_SHORT_GI_160 |
2982 IEEE80211_VHT_CAP_TXSTBC |
2983 IEEE80211_VHT_CAP_RXSTBC_4 |
2984 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
2985 sband->vht_cap.vht_mcs.rx_mcs_map =
2986 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
2987 IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 |
2988 IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
2989 IEEE80211_VHT_MCS_SUPPORT_0_9 << 6 |
2990 IEEE80211_VHT_MCS_SUPPORT_0_9 << 8 |
2991 IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
2992 IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
2993 IEEE80211_VHT_MCS_SUPPORT_0_9 << 14);
2994 sband->vht_cap.vht_mcs.tx_mcs_map =
2995 sband->vht_cap.vht_mcs.rx_mcs_map;
2996 break;
2997 default:
2998 continue;
2999 }
3000
3001 sband->ht_cap.ht_supported = true;
3002 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
3003 IEEE80211_HT_CAP_GRN_FLD |
3004 IEEE80211_HT_CAP_SGI_20 |
3005 IEEE80211_HT_CAP_SGI_40 |
3006 IEEE80211_HT_CAP_DSSSCCK40;
3007 sband->ht_cap.ampdu_factor = 0x3;
3008 sband->ht_cap.ampdu_density = 0x6;
3009 memset(&sband->ht_cap.mcs, 0,
3010 sizeof(sband->ht_cap.mcs));
3011 sband->ht_cap.mcs.rx_mask[0] = 0xff;
3012 sband->ht_cap.mcs.rx_mask[1] = 0xff;
3013 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
3014
3015 mac80211_hwsim_he_capab(sband);
3016
3017 hw->wiphy->bands[band] = sband;
3018 }
3019
3020 /* By default all radios belong to the first group */
3021 data->group = 1;
3022 mutex_init(&data->mutex);
3023
3024 data->netgroup = hwsim_net_get_netgroup(net);
3025 data->wmediumd = hwsim_net_get_wmediumd(net);
3026
3027 /* Enable frame retransmissions for lossy channels */
3028 hw->max_rates = 4;
3029 hw->max_rate_tries = 11;
3030
3031 hw->wiphy->vendor_commands = mac80211_hwsim_vendor_commands;
3032 hw->wiphy->n_vendor_commands =
3033 ARRAY_SIZE(mac80211_hwsim_vendor_commands);
3034 hw->wiphy->vendor_events = mac80211_hwsim_vendor_events;
3035 hw->wiphy->n_vendor_events = ARRAY_SIZE(mac80211_hwsim_vendor_events);
3036
3037 if (param->reg_strict)
3038 hw->wiphy->regulatory_flags |= REGULATORY_STRICT_REG;
3039 if (param->regd) {
3040 data->regd = param->regd;
3041 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
3042 wiphy_apply_custom_regulatory(hw->wiphy, param->regd);
3043 /* give the regulatory workqueue a chance to run */
3044 schedule_timeout_interruptible(1);
3045 }
3046
3047 if (param->no_vif)
3048 ieee80211_hw_set(hw, NO_AUTO_VIF);
3049
3050 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);
3051
3052 hrtimer_init(&data->beacon_timer, CLOCK_MONOTONIC,
3053 HRTIMER_MODE_ABS_SOFT);
3054 data->beacon_timer.function = mac80211_hwsim_beacon;
3055
3056 err = ieee80211_register_hw(hw);
3057 if (err < 0) {
3058 pr_debug("mac80211_hwsim: ieee80211_register_hw failed (%d)\n",
3059 err);
3060 goto failed_hw;
3061 }
3062
3063 wiphy_dbg(hw->wiphy, "hwaddr %pM registered\n", hw->wiphy->perm_addr);
3064
3065 if (param->reg_alpha2) {
3066 data->alpha2[0] = param->reg_alpha2[0];
3067 data->alpha2[1] = param->reg_alpha2[1];
3068 regulatory_hint(hw->wiphy, param->reg_alpha2);
3069 }
3070
3071 data->debugfs = debugfs_create_dir("hwsim", hw->wiphy->debugfsdir);
3072 debugfs_create_file("ps", 0666, data->debugfs, data, &hwsim_fops_ps);
3073 debugfs_create_file("group", 0666, data->debugfs, data,
3074 &hwsim_fops_group);
3075 if (!data->use_chanctx)
3076 debugfs_create_file("dfs_simulate_radar", 0222,
3077 data->debugfs,
3078 data, &hwsim_simulate_radar);
3079
3080 spin_lock_bh(&hwsim_radio_lock);
3081 err = rhashtable_insert_fast(&hwsim_radios_rht, &data->rht,
3082 hwsim_rht_params);
3083 if (err < 0) {
3084 if (info) {
3085 GENL_SET_ERR_MSG(info, "perm addr already present");
3086 NL_SET_BAD_ATTR(info->extack,
3087 info->attrs[HWSIM_ATTR_PERM_ADDR]);
3088 }
3089 spin_unlock_bh(&hwsim_radio_lock);
3090 goto failed_final_insert;
3091 }
3092
3093 list_add_tail(&data->list, &hwsim_radios);
3094 hwsim_radios_generation++;
3095 spin_unlock_bh(&hwsim_radio_lock);
3096
3097 hwsim_mcast_new_radio(idx, info, param);
3098
3099 return idx;
3100
3101 failed_final_insert:
3102 debugfs_remove_recursive(data->debugfs);
3103 ieee80211_unregister_hw(data->hw);
3104 failed_hw:
3105 device_release_driver(data->dev);
3106 failed_bind:
3107 device_unregister(data->dev);
3108 failed_drvdata:
3109 ieee80211_free_hw(hw);
3110 failed:
3111 return err;
3112 }
3113
3114 static void hwsim_mcast_del_radio(int id, const char *hwname,
3115 struct genl_info *info)
3116 {
3117 struct sk_buff *skb;
3118 void *data;
3119 int ret;
3120
3121 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
3122 if (!skb)
3123 return;
3124
3125 data = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
3126 HWSIM_CMD_DEL_RADIO);
3127 if (!data)
3128 goto error;
3129
3130 ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
3131 if (ret < 0)
3132 goto error;
3133
3134 ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME, strlen(hwname),
3135 hwname);
3136 if (ret < 0)
3137 goto error;
3138
3139 genlmsg_end(skb, data);
3140
3141 hwsim_mcast_config_msg(skb, info);
3142
3143 return;
3144
3145 error:
3146 nlmsg_free(skb);
3147 }
3148
3149 static void mac80211_hwsim_del_radio(struct mac80211_hwsim_data *data,
3150 const char *hwname,
3151 struct genl_info *info)
3152 {
3153 hwsim_mcast_del_radio(data->idx, hwname, info);
3154 debugfs_remove_recursive(data->debugfs);
3155 ieee80211_unregister_hw(data->hw);
3156 device_release_driver(data->dev);
3157 device_unregister(data->dev);
3158 ieee80211_free_hw(data->hw);
3159 }
3160
3161 static int mac80211_hwsim_get_radio(struct sk_buff *skb,
3162 struct mac80211_hwsim_data *data,
3163 u32 portid, u32 seq,
3164 struct netlink_callback *cb, int flags)
3165 {
3166 void *hdr;
3167 struct hwsim_new_radio_params param = { };
3168 int res = -EMSGSIZE;
3169
3170 hdr = genlmsg_put(skb, portid, seq, &hwsim_genl_family, flags,
3171 HWSIM_CMD_GET_RADIO);
3172 if (!hdr)
3173 return -EMSGSIZE;
3174
3175 if (cb)
3176 genl_dump_check_consistent(cb, hdr);
3177
3178 if (data->alpha2[0] && data->alpha2[1])
3179 param.reg_alpha2 = data->alpha2;
3180
3181 param.reg_strict = !!(data->hw->wiphy->regulatory_flags &
3182 REGULATORY_STRICT_REG);
3183 param.p2p_device = !!(data->hw->wiphy->interface_modes &
3184 BIT(NL80211_IFTYPE_P2P_DEVICE));
3185 param.use_chanctx = data->use_chanctx;
3186 param.regd = data->regd;
3187 param.channels = data->channels;
3188 param.hwname = wiphy_name(data->hw->wiphy);
3189
3190 res = append_radio_msg(skb, data->idx, &param);
3191 if (res < 0)
3192 goto out_err;
3193
3194 genlmsg_end(skb, hdr);
3195 return 0;
3196
3197 out_err:
3198 genlmsg_cancel(skb, hdr);
3199 return res;
3200 }
3201
3202 static void mac80211_hwsim_free(void)
3203 {
3204 struct mac80211_hwsim_data *data;
3205
3206 spin_lock_bh(&hwsim_radio_lock);
3207 while ((data = list_first_entry_or_null(&hwsim_radios,
3208 struct mac80211_hwsim_data,
3209 list))) {
3210 list_del(&data->list);
3211 spin_unlock_bh(&hwsim_radio_lock);
3212 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
3213 NULL);
3214 spin_lock_bh(&hwsim_radio_lock);
3215 }
3216 spin_unlock_bh(&hwsim_radio_lock);
3217 class_destroy(hwsim_class);
3218 }
3219
3220 static const struct net_device_ops hwsim_netdev_ops = {
3221 .ndo_start_xmit = hwsim_mon_xmit,
3222 .ndo_set_mac_address = eth_mac_addr,
3223 .ndo_validate_addr = eth_validate_addr,
3224 };
3225
3226 static void hwsim_mon_setup(struct net_device *dev)
3227 {
3228 dev->netdev_ops = &hwsim_netdev_ops;
3229 dev->needs_free_netdev = true;
3230 ether_setup(dev);
3231 dev->priv_flags |= IFF_NO_QUEUE;
3232 dev->type = ARPHRD_IEEE80211_RADIOTAP;
3233 eth_zero_addr(dev->dev_addr);
3234 dev->dev_addr[0] = 0x12;
3235 }
3236
3237 static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(const u8 *addr)
3238 {
3239 return rhashtable_lookup_fast(&hwsim_radios_rht,
3240 addr,
3241 hwsim_rht_params);
3242 }
3243
3244 static void hwsim_register_wmediumd(struct net *net, u32 portid)
3245 {
3246 struct mac80211_hwsim_data *data;
3247
3248 hwsim_net_set_wmediumd(net, portid);
3249
3250 spin_lock_bh(&hwsim_radio_lock);
3251 list_for_each_entry(data, &hwsim_radios, list) {
3252 if (data->netgroup == hwsim_net_get_netgroup(net))
3253 data->wmediumd = portid;
3254 }
3255 spin_unlock_bh(&hwsim_radio_lock);
3256 }
3257
3258 static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
3259 struct genl_info *info)
3260 {
3261
3262 struct ieee80211_hdr *hdr;
3263 struct mac80211_hwsim_data *data2;
3264 struct ieee80211_tx_info *txi;
3265 struct hwsim_tx_rate *tx_attempts;
3266 u64 ret_skb_cookie;
3267 struct sk_buff *skb, *tmp;
3268 const u8 *src;
3269 unsigned int hwsim_flags;
3270 int i;
3271 bool found = false;
3272
3273 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
3274 !info->attrs[HWSIM_ATTR_FLAGS] ||
3275 !info->attrs[HWSIM_ATTR_COOKIE] ||
3276 !info->attrs[HWSIM_ATTR_SIGNAL] ||
3277 !info->attrs[HWSIM_ATTR_TX_INFO])
3278 goto out;
3279
3280 src = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
3281 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
3282 ret_skb_cookie = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
3283
3284 data2 = get_hwsim_data_ref_from_addr(src);
3285 if (!data2)
3286 goto out;
3287
3288 if (hwsim_net_get_netgroup(genl_info_net(info)) != data2->netgroup)
3289 goto out;
3290
3291 if (info->snd_portid != data2->wmediumd)
3292 goto out;
3293
3294 /* look for the skb matching the cookie passed back from user */
3295 skb_queue_walk_safe(&data2->pending, skb, tmp) {
3296 u64 skb_cookie;
3297
3298 txi = IEEE80211_SKB_CB(skb);
3299 skb_cookie = (u64)(uintptr_t)txi->rate_driver_data[0];
3300
3301 if (skb_cookie == ret_skb_cookie) {
3302 skb_unlink(skb, &data2->pending);
3303 found = true;
3304 break;
3305 }
3306 }
3307
3308 /* not found */
3309 if (!found)
3310 goto out;
3311
3312 /* Tx info received because the frame was broadcasted on user space,
3313 so we get all the necessary info: tx attempts and skb control buff */
3314
3315 tx_attempts = (struct hwsim_tx_rate *)nla_data(
3316 info->attrs[HWSIM_ATTR_TX_INFO]);
3317
3318 /* now send back TX status */
3319 txi = IEEE80211_SKB_CB(skb);
3320
3321 ieee80211_tx_info_clear_status(txi);
3322
3323 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
3324 txi->status.rates[i].idx = tx_attempts[i].idx;
3325 txi->status.rates[i].count = tx_attempts[i].count;
3326 }
3327
3328 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
3329
3330 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
3331 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
3332 if (skb->len >= 16) {
3333 hdr = (struct ieee80211_hdr *) skb->data;
3334 mac80211_hwsim_monitor_ack(data2->channel,
3335 hdr->addr2);
3336 }
3337 txi->flags |= IEEE80211_TX_STAT_ACK;
3338 }
3339 ieee80211_tx_status_irqsafe(data2->hw, skb);
3340 return 0;
3341 out:
3342 return -EINVAL;
3343
3344 }
3345
3346 static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
3347 struct genl_info *info)
3348 {
3349 struct mac80211_hwsim_data *data2;
3350 struct ieee80211_rx_status rx_status;
3351 struct ieee80211_hdr *hdr;
3352 const u8 *dst;
3353 int frame_data_len;
3354 void *frame_data;
3355 struct sk_buff *skb = NULL;
3356
3357 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
3358 !info->attrs[HWSIM_ATTR_FRAME] ||
3359 !info->attrs[HWSIM_ATTR_RX_RATE] ||
3360 !info->attrs[HWSIM_ATTR_SIGNAL])
3361 goto out;
3362
3363 dst = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
3364 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
3365 frame_data = (void *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
3366
3367 /* Allocate new skb here */
3368 skb = alloc_skb(frame_data_len, GFP_KERNEL);
3369 if (skb == NULL)
3370 goto err;
3371
3372 if (frame_data_len > IEEE80211_MAX_DATA_LEN)
3373 goto err;
3374
3375 /* Copy the data */
3376 skb_put_data(skb, frame_data, frame_data_len);
3377
3378 data2 = get_hwsim_data_ref_from_addr(dst);
3379 if (!data2)
3380 goto out;
3381
3382 if (hwsim_net_get_netgroup(genl_info_net(info)) != data2->netgroup)
3383 goto out;
3384
3385 if (info->snd_portid != data2->wmediumd)
3386 goto out;
3387
3388 /* check if radio is configured properly */
3389
3390 if (data2->idle || !data2->started)
3391 goto out;
3392
3393 /* A frame is received from user space */
3394 memset(&rx_status, 0, sizeof(rx_status));
3395 if (info->attrs[HWSIM_ATTR_FREQ]) {
3396 /* throw away off-channel packets, but allow both the temporary
3397 * ("hw" scan/remain-on-channel) and regular channel, since the
3398 * internal datapath also allows this
3399 */
3400 mutex_lock(&data2->mutex);
3401 rx_status.freq = nla_get_u32(info->attrs[HWSIM_ATTR_FREQ]);
3402
3403 if (rx_status.freq != data2->channel->center_freq &&
3404 (!data2->tmp_chan ||
3405 rx_status.freq != data2->tmp_chan->center_freq)) {
3406 mutex_unlock(&data2->mutex);
3407 goto out;
3408 }
3409 mutex_unlock(&data2->mutex);
3410 } else {
3411 rx_status.freq = data2->channel->center_freq;
3412 }
3413
3414 rx_status.band = data2->channel->band;
3415 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
3416 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
3417
3418 hdr = (void *)skb->data;
3419
3420 if (ieee80211_is_beacon(hdr->frame_control) ||
3421 ieee80211_is_probe_resp(hdr->frame_control))
3422 rx_status.boottime_ns = ktime_get_boottime_ns();
3423
3424 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
3425 data2->rx_pkts++;
3426 data2->rx_bytes += skb->len;
3427 ieee80211_rx_irqsafe(data2->hw, skb);
3428
3429 return 0;
3430 err:
3431 pr_debug("mac80211_hwsim: error occurred in %s\n", __func__);
3432 out:
3433 dev_kfree_skb(skb);
3434 return -EINVAL;
3435 }
3436
3437 static int hwsim_register_received_nl(struct sk_buff *skb_2,
3438 struct genl_info *info)
3439 {
3440 struct net *net = genl_info_net(info);
3441 struct mac80211_hwsim_data *data;
3442 int chans = 1;
3443
3444 spin_lock_bh(&hwsim_radio_lock);
3445 list_for_each_entry(data, &hwsim_radios, list)
3446 chans = max(chans, data->channels);
3447 spin_unlock_bh(&hwsim_radio_lock);
3448
3449 /* In the future we should revise the userspace API and allow it
3450 * to set a flag that it does support multi-channel, then we can
3451 * let this pass conditionally on the flag.
3452 * For current userspace, prohibit it since it won't work right.
3453 */
3454 if (chans > 1)
3455 return -EOPNOTSUPP;
3456
3457 if (hwsim_net_get_wmediumd(net))
3458 return -EBUSY;
3459
3460 hwsim_register_wmediumd(net, info->snd_portid);
3461
3462 pr_debug("mac80211_hwsim: received a REGISTER, "
3463 "switching to wmediumd mode with pid %d\n", info->snd_portid);
3464
3465 return 0;
3466 }
3467
3468 /* ensures ciphers only include ciphers listed in 'hwsim_ciphers' array */
3469 static bool hwsim_known_ciphers(const u32 *ciphers, int n_ciphers)
3470 {
3471 int i;
3472
3473 for (i = 0; i < n_ciphers; i++) {
3474 int j;
3475 int found = 0;
3476
3477 for (j = 0; j < ARRAY_SIZE(hwsim_ciphers); j++) {
3478 if (ciphers[i] == hwsim_ciphers[j]) {
3479 found = 1;
3480 break;
3481 }
3482 }
3483
3484 if (!found)
3485 return false;
3486 }
3487
3488 return true;
3489 }
3490
3491 static int hwsim_new_radio_nl(struct sk_buff *msg, struct genl_info *info)
3492 {
3493 struct hwsim_new_radio_params param = { 0 };
3494 const char *hwname = NULL;
3495 int ret;
3496
3497 param.reg_strict = info->attrs[HWSIM_ATTR_REG_STRICT_REG];
3498 param.p2p_device = info->attrs[HWSIM_ATTR_SUPPORT_P2P_DEVICE];
3499 param.channels = channels;
3500 param.destroy_on_close =
3501 info->attrs[HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE];
3502
3503 if (info->attrs[HWSIM_ATTR_CHANNELS])
3504 param.channels = nla_get_u32(info->attrs[HWSIM_ATTR_CHANNELS]);
3505
3506 if (param.channels < 1) {
3507 GENL_SET_ERR_MSG(info, "must have at least one channel");
3508 return -EINVAL;
3509 }
3510
3511 if (param.channels > CFG80211_MAX_NUM_DIFFERENT_CHANNELS) {
3512 GENL_SET_ERR_MSG(info, "too many channels specified");
3513 return -EINVAL;
3514 }
3515
3516 if (info->attrs[HWSIM_ATTR_NO_VIF])
3517 param.no_vif = true;
3518
3519 if (info->attrs[HWSIM_ATTR_USE_CHANCTX])
3520 param.use_chanctx = true;
3521 else
3522 param.use_chanctx = (param.channels > 1);
3523
3524 if (info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2])
3525 param.reg_alpha2 =
3526 nla_data(info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2]);
3527
3528 if (info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]) {
3529 u32 idx = nla_get_u32(info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]);
3530
3531 if (idx >= ARRAY_SIZE(hwsim_world_regdom_custom))
3532 return -EINVAL;
3533
3534 idx = array_index_nospec(idx,
3535 ARRAY_SIZE(hwsim_world_regdom_custom));
3536 param.regd = hwsim_world_regdom_custom[idx];
3537 }
3538
3539 if (info->attrs[HWSIM_ATTR_PERM_ADDR]) {
3540 if (!is_valid_ether_addr(
3541 nla_data(info->attrs[HWSIM_ATTR_PERM_ADDR]))) {
3542 GENL_SET_ERR_MSG(info,"MAC is no valid source addr");
3543 NL_SET_BAD_ATTR(info->extack,
3544 info->attrs[HWSIM_ATTR_PERM_ADDR]);
3545 return -EINVAL;
3546 }
3547
3548 param.perm_addr = nla_data(info->attrs[HWSIM_ATTR_PERM_ADDR]);
3549 }
3550
3551 if (info->attrs[HWSIM_ATTR_IFTYPE_SUPPORT]) {
3552 param.iftypes =
3553 nla_get_u32(info->attrs[HWSIM_ATTR_IFTYPE_SUPPORT]);
3554
3555 if (param.iftypes & ~HWSIM_IFTYPE_SUPPORT_MASK) {
3556 NL_SET_ERR_MSG_ATTR(info->extack,
3557 info->attrs[HWSIM_ATTR_IFTYPE_SUPPORT],
3558 "cannot support more iftypes than kernel");
3559 return -EINVAL;
3560 }
3561 } else {
3562 param.iftypes = HWSIM_IFTYPE_SUPPORT_MASK;
3563 }
3564
3565 /* ensure both flag and iftype support is honored */
3566 if (param.p2p_device ||
3567 param.iftypes & BIT(NL80211_IFTYPE_P2P_DEVICE)) {
3568 param.iftypes |= BIT(NL80211_IFTYPE_P2P_DEVICE);
3569 param.p2p_device = true;
3570 }
3571
3572 if (info->attrs[HWSIM_ATTR_CIPHER_SUPPORT]) {
3573 u32 len = nla_len(info->attrs[HWSIM_ATTR_CIPHER_SUPPORT]);
3574
3575 param.ciphers =
3576 nla_data(info->attrs[HWSIM_ATTR_CIPHER_SUPPORT]);
3577
3578 if (len % sizeof(u32)) {
3579 NL_SET_ERR_MSG_ATTR(info->extack,
3580 info->attrs[HWSIM_ATTR_CIPHER_SUPPORT],
3581 "bad cipher list length");
3582 return -EINVAL;
3583 }
3584
3585 param.n_ciphers = len / sizeof(u32);
3586
3587 if (param.n_ciphers > ARRAY_SIZE(hwsim_ciphers)) {
3588 NL_SET_ERR_MSG_ATTR(info->extack,
3589 info->attrs[HWSIM_ATTR_CIPHER_SUPPORT],
3590 "too many ciphers specified");
3591 return -EINVAL;
3592 }
3593
3594 if (!hwsim_known_ciphers(param.ciphers, param.n_ciphers)) {
3595 NL_SET_ERR_MSG_ATTR(info->extack,
3596 info->attrs[HWSIM_ATTR_CIPHER_SUPPORT],
3597 "unsupported ciphers specified");
3598 return -EINVAL;
3599 }
3600 }
3601
3602 if (info->attrs[HWSIM_ATTR_RADIO_NAME]) {
3603 hwname = kasprintf(GFP_KERNEL, "%.*s",
3604 nla_len(info->attrs[HWSIM_ATTR_RADIO_NAME]),
3605 (char *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]));
3606 if (!hwname)
3607 return -ENOMEM;
3608 param.hwname = hwname;
3609 }
3610
3611 ret = mac80211_hwsim_new_radio(info, &param);
3612 kfree(hwname);
3613 return ret;
3614 }
3615
3616 static int hwsim_del_radio_nl(struct sk_buff *msg, struct genl_info *info)
3617 {
3618 struct mac80211_hwsim_data *data;
3619 s64 idx = -1;
3620 const char *hwname = NULL;
3621
3622 if (info->attrs[HWSIM_ATTR_RADIO_ID]) {
3623 idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
3624 } else if (info->attrs[HWSIM_ATTR_RADIO_NAME]) {
3625 hwname = kasprintf(GFP_KERNEL, "%.*s",
3626 nla_len(info->attrs[HWSIM_ATTR_RADIO_NAME]),
3627 (char *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]));
3628 if (!hwname)
3629 return -ENOMEM;
3630 } else
3631 return -EINVAL;
3632
3633 spin_lock_bh(&hwsim_radio_lock);
3634 list_for_each_entry(data, &hwsim_radios, list) {
3635 if (idx >= 0) {
3636 if (data->idx != idx)
3637 continue;
3638 } else {
3639 if (!hwname ||
3640 strcmp(hwname, wiphy_name(data->hw->wiphy)))
3641 continue;
3642 }
3643
3644 if (!net_eq(wiphy_net(data->hw->wiphy), genl_info_net(info)))
3645 continue;
3646
3647 list_del(&data->list);
3648 rhashtable_remove_fast(&hwsim_radios_rht, &data->rht,
3649 hwsim_rht_params);
3650 hwsim_radios_generation++;
3651 spin_unlock_bh(&hwsim_radio_lock);
3652 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
3653 info);
3654 kfree(hwname);
3655 return 0;
3656 }
3657 spin_unlock_bh(&hwsim_radio_lock);
3658
3659 kfree(hwname);
3660 return -ENODEV;
3661 }
3662
3663 static int hwsim_get_radio_nl(struct sk_buff *msg, struct genl_info *info)
3664 {
3665 struct mac80211_hwsim_data *data;
3666 struct sk_buff *skb;
3667 int idx, res = -ENODEV;
3668
3669 if (!info->attrs[HWSIM_ATTR_RADIO_ID])
3670 return -EINVAL;
3671 idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
3672
3673 spin_lock_bh(&hwsim_radio_lock);
3674 list_for_each_entry(data, &hwsim_radios, list) {
3675 if (data->idx != idx)
3676 continue;
3677
3678 if (!net_eq(wiphy_net(data->hw->wiphy), genl_info_net(info)))
3679 continue;
3680
3681 skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
3682 if (!skb) {
3683 res = -ENOMEM;
3684 goto out_err;
3685 }
3686
3687 res = mac80211_hwsim_get_radio(skb, data, info->snd_portid,
3688 info->snd_seq, NULL, 0);
3689 if (res < 0) {
3690 nlmsg_free(skb);
3691 goto out_err;
3692 }
3693
3694 res = genlmsg_reply(skb, info);
3695 break;
3696 }
3697
3698 out_err:
3699 spin_unlock_bh(&hwsim_radio_lock);
3700
3701 return res;
3702 }
3703
3704 static int hwsim_dump_radio_nl(struct sk_buff *skb,
3705 struct netlink_callback *cb)
3706 {
3707 int last_idx = cb->args[0] - 1;
3708 struct mac80211_hwsim_data *data = NULL;
3709 int res = 0;
3710 void *hdr;
3711
3712 spin_lock_bh(&hwsim_radio_lock);
3713 cb->seq = hwsim_radios_generation;
3714
3715 if (last_idx >= hwsim_radio_idx-1)
3716 goto done;
3717
3718 list_for_each_entry(data, &hwsim_radios, list) {
3719 if (data->idx <= last_idx)
3720 continue;
3721
3722 if (!net_eq(wiphy_net(data->hw->wiphy), sock_net(skb->sk)))
3723 continue;
3724
3725 res = mac80211_hwsim_get_radio(skb, data,
3726 NETLINK_CB(cb->skb).portid,
3727 cb->nlh->nlmsg_seq, cb,
3728 NLM_F_MULTI);
3729 if (res < 0)
3730 break;
3731
3732 last_idx = data->idx;
3733 }
3734
3735 cb->args[0] = last_idx + 1;
3736
3737 /* list changed, but no new element sent, set interrupted flag */
3738 if (skb->len == 0 && cb->prev_seq && cb->seq != cb->prev_seq) {
3739 hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid,
3740 cb->nlh->nlmsg_seq, &hwsim_genl_family,
3741 NLM_F_MULTI, HWSIM_CMD_GET_RADIO);
3742 if (hdr) {
3743 genl_dump_check_consistent(cb, hdr);
3744 genlmsg_end(skb, hdr);
3745 } else {
3746 res = -EMSGSIZE;
3747 }
3748 }
3749
3750 done:
3751 spin_unlock_bh(&hwsim_radio_lock);
3752 return res ?: skb->len;
3753 }
3754
3755 /* Generic Netlink operations array */
3756 static const struct genl_ops hwsim_ops[] = {
3757 {
3758 .cmd = HWSIM_CMD_REGISTER,
3759 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
3760 .doit = hwsim_register_received_nl,
3761 .flags = GENL_UNS_ADMIN_PERM,
3762 },
3763 {
3764 .cmd = HWSIM_CMD_FRAME,
3765 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
3766 .doit = hwsim_cloned_frame_received_nl,
3767 },
3768 {
3769 .cmd = HWSIM_CMD_TX_INFO_FRAME,
3770 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
3771 .doit = hwsim_tx_info_frame_received_nl,
3772 },
3773 {
3774 .cmd = HWSIM_CMD_NEW_RADIO,
3775 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
3776 .doit = hwsim_new_radio_nl,
3777 .flags = GENL_UNS_ADMIN_PERM,
3778 },
3779 {
3780 .cmd = HWSIM_CMD_DEL_RADIO,
3781 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
3782 .doit = hwsim_del_radio_nl,
3783 .flags = GENL_UNS_ADMIN_PERM,
3784 },
3785 {
3786 .cmd = HWSIM_CMD_GET_RADIO,
3787 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
3788 .doit = hwsim_get_radio_nl,
3789 .dumpit = hwsim_dump_radio_nl,
3790 },
3791 };
3792
3793 static struct genl_family hwsim_genl_family __ro_after_init = {
3794 .name = "MAC80211_HWSIM",
3795 .version = 1,
3796 .maxattr = HWSIM_ATTR_MAX,
3797 .policy = hwsim_genl_policy,
3798 .netnsok = true,
3799 .module = THIS_MODULE,
3800 .ops = hwsim_ops,
3801 .n_ops = ARRAY_SIZE(hwsim_ops),
3802 .mcgrps = hwsim_mcgrps,
3803 .n_mcgrps = ARRAY_SIZE(hwsim_mcgrps),
3804 };
3805
3806 static void remove_user_radios(u32 portid)
3807 {
3808 struct mac80211_hwsim_data *entry, *tmp;
3809 LIST_HEAD(list);
3810
3811 spin_lock_bh(&hwsim_radio_lock);
3812 list_for_each_entry_safe(entry, tmp, &hwsim_radios, list) {
3813 if (entry->destroy_on_close && entry->portid == portid) {
3814 list_move(&entry->list, &list);
3815 rhashtable_remove_fast(&hwsim_radios_rht, &entry->rht,
3816 hwsim_rht_params);
3817 hwsim_radios_generation++;
3818 }
3819 }
3820 spin_unlock_bh(&hwsim_radio_lock);
3821
3822 list_for_each_entry_safe(entry, tmp, &list, list) {
3823 list_del(&entry->list);
3824 mac80211_hwsim_del_radio(entry, wiphy_name(entry->hw->wiphy),
3825 NULL);
3826 }
3827 }
3828
3829 static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
3830 unsigned long state,
3831 void *_notify)
3832 {
3833 struct netlink_notify *notify = _notify;
3834
3835 if (state != NETLINK_URELEASE)
3836 return NOTIFY_DONE;
3837
3838 remove_user_radios(notify->portid);
3839
3840 if (notify->portid == hwsim_net_get_wmediumd(notify->net)) {
3841 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
3842 " socket, switching to perfect channel medium\n");
3843 hwsim_register_wmediumd(notify->net, 0);
3844 }
3845 return NOTIFY_DONE;
3846
3847 }
3848
3849 static struct notifier_block hwsim_netlink_notifier = {
3850 .notifier_call = mac80211_hwsim_netlink_notify,
3851 };
3852
3853 static int __init hwsim_init_netlink(void)
3854 {
3855 int rc;
3856
3857 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
3858
3859 rc = genl_register_family(&hwsim_genl_family);
3860 if (rc)
3861 goto failure;
3862
3863 rc = netlink_register_notifier(&hwsim_netlink_notifier);
3864 if (rc) {
3865 genl_unregister_family(&hwsim_genl_family);
3866 goto failure;
3867 }
3868
3869 return 0;
3870
3871 failure:
3872 pr_debug("mac80211_hwsim: error occurred in %s\n", __func__);
3873 return -EINVAL;
3874 }
3875
3876 static __net_init int hwsim_init_net(struct net *net)
3877 {
3878 return hwsim_net_set_netgroup(net);
3879 }
3880
3881 static void __net_exit hwsim_exit_net(struct net *net)
3882 {
3883 struct mac80211_hwsim_data *data, *tmp;
3884 LIST_HEAD(list);
3885
3886 spin_lock_bh(&hwsim_radio_lock);
3887 list_for_each_entry_safe(data, tmp, &hwsim_radios, list) {
3888 if (!net_eq(wiphy_net(data->hw->wiphy), net))
3889 continue;
3890
3891 /* Radios created in init_net are returned to init_net. */
3892 if (data->netgroup == hwsim_net_get_netgroup(&init_net))
3893 continue;
3894
3895 list_move(&data->list, &list);
3896 rhashtable_remove_fast(&hwsim_radios_rht, &data->rht,
3897 hwsim_rht_params);
3898 hwsim_radios_generation++;
3899 }
3900 spin_unlock_bh(&hwsim_radio_lock);
3901
3902 list_for_each_entry_safe(data, tmp, &list, list) {
3903 list_del(&data->list);
3904 mac80211_hwsim_del_radio(data,
3905 wiphy_name(data->hw->wiphy),
3906 NULL);
3907 }
3908
3909 ida_simple_remove(&hwsim_netgroup_ida, hwsim_net_get_netgroup(net));
3910 }
3911
3912 static struct pernet_operations hwsim_net_ops = {
3913 .init = hwsim_init_net,
3914 .exit = hwsim_exit_net,
3915 .id = &hwsim_net_id,
3916 .size = sizeof(struct hwsim_net),
3917 };
3918
3919 static void hwsim_exit_netlink(void)
3920 {
3921 /* unregister the notifier */
3922 netlink_unregister_notifier(&hwsim_netlink_notifier);
3923 /* unregister the family */
3924 genl_unregister_family(&hwsim_genl_family);
3925 }
3926
3927 static int __init init_mac80211_hwsim(void)
3928 {
3929 int i, err;
3930
3931 if (radios < 0 || radios > 100)
3932 return -EINVAL;
3933
3934 if (channels < 1)
3935 return -EINVAL;
3936
3937 spin_lock_init(&hwsim_radio_lock);
3938
3939 err = rhashtable_init(&hwsim_radios_rht, &hwsim_rht_params);
3940 if (err)
3941 return err;
3942
3943 err = register_pernet_device(&hwsim_net_ops);
3944 if (err)
3945 goto out_free_rht;
3946
3947 err = platform_driver_register(&mac80211_hwsim_driver);
3948 if (err)
3949 goto out_unregister_pernet;
3950
3951 err = hwsim_init_netlink();
3952 if (err)
3953 goto out_unregister_driver;
3954
3955 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
3956 if (IS_ERR(hwsim_class)) {
3957 err = PTR_ERR(hwsim_class);
3958 goto out_exit_netlink;
3959 }
3960
3961 for (i = 0; i < radios; i++) {
3962 struct hwsim_new_radio_params param = { 0 };
3963
3964 param.channels = channels;
3965
3966 switch (regtest) {
3967 case HWSIM_REGTEST_DIFF_COUNTRY:
3968 if (i < ARRAY_SIZE(hwsim_alpha2s))
3969 param.reg_alpha2 = hwsim_alpha2s[i];
3970 break;
3971 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
3972 if (!i)
3973 param.reg_alpha2 = hwsim_alpha2s[0];
3974 break;
3975 case HWSIM_REGTEST_STRICT_ALL:
3976 param.reg_strict = true;
3977 /* fall through */
3978 case HWSIM_REGTEST_DRIVER_REG_ALL:
3979 param.reg_alpha2 = hwsim_alpha2s[0];
3980 break;
3981 case HWSIM_REGTEST_WORLD_ROAM:
3982 if (i == 0)
3983 param.regd = &hwsim_world_regdom_custom_01;
3984 break;
3985 case HWSIM_REGTEST_CUSTOM_WORLD:
3986 param.regd = &hwsim_world_regdom_custom_01;
3987 break;
3988 case HWSIM_REGTEST_CUSTOM_WORLD_2:
3989 if (i == 0)
3990 param.regd = &hwsim_world_regdom_custom_01;
3991 else if (i == 1)
3992 param.regd = &hwsim_world_regdom_custom_02;
3993 break;
3994 case HWSIM_REGTEST_STRICT_FOLLOW:
3995 if (i == 0) {
3996 param.reg_strict = true;
3997 param.reg_alpha2 = hwsim_alpha2s[0];
3998 }
3999 break;
4000 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
4001 if (i == 0) {
4002 param.reg_strict = true;
4003 param.reg_alpha2 = hwsim_alpha2s[0];
4004 } else if (i == 1) {
4005 param.reg_alpha2 = hwsim_alpha2s[1];
4006 }
4007 break;
4008 case HWSIM_REGTEST_ALL:
4009 switch (i) {
4010 case 0:
4011 param.regd = &hwsim_world_regdom_custom_01;
4012 break;
4013 case 1:
4014 param.regd = &hwsim_world_regdom_custom_02;
4015 break;
4016 case 2:
4017 param.reg_alpha2 = hwsim_alpha2s[0];
4018 break;
4019 case 3:
4020 param.reg_alpha2 = hwsim_alpha2s[1];
4021 break;
4022 case 4:
4023 param.reg_strict = true;
4024 param.reg_alpha2 = hwsim_alpha2s[2];
4025 break;
4026 }
4027 break;
4028 default:
4029 break;
4030 }
4031
4032 param.p2p_device = support_p2p_device;
4033 param.use_chanctx = channels > 1;
4034 param.iftypes = HWSIM_IFTYPE_SUPPORT_MASK;
4035 if (param.p2p_device)
4036 param.iftypes |= BIT(NL80211_IFTYPE_P2P_DEVICE);
4037
4038 err = mac80211_hwsim_new_radio(NULL, &param);
4039 if (err < 0)
4040 goto out_free_radios;
4041 }
4042
4043 hwsim_mon = alloc_netdev(0, "hwsim%d", NET_NAME_UNKNOWN,
4044 hwsim_mon_setup);
4045 if (hwsim_mon == NULL) {
4046 err = -ENOMEM;
4047 goto out_free_radios;
4048 }
4049
4050 rtnl_lock();
4051 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
4052 if (err < 0) {
4053 rtnl_unlock();
4054 goto out_free_mon;
4055 }
4056
4057 err = register_netdevice(hwsim_mon);
4058 if (err < 0) {
4059 rtnl_unlock();
4060 goto out_free_mon;
4061 }
4062 rtnl_unlock();
4063
4064 return 0;
4065
4066 out_free_mon:
4067 free_netdev(hwsim_mon);
4068 out_free_radios:
4069 mac80211_hwsim_free();
4070 out_exit_netlink:
4071 hwsim_exit_netlink();
4072 out_unregister_driver:
4073 platform_driver_unregister(&mac80211_hwsim_driver);
4074 out_unregister_pernet:
4075 unregister_pernet_device(&hwsim_net_ops);
4076 out_free_rht:
4077 rhashtable_destroy(&hwsim_radios_rht);
4078 return err;
4079 }
4080 module_init(init_mac80211_hwsim);
4081
4082 static void __exit exit_mac80211_hwsim(void)
4083 {
4084 pr_debug("mac80211_hwsim: unregister radios\n");
4085
4086 hwsim_exit_netlink();
4087
4088 mac80211_hwsim_free();
4089
4090 rhashtable_destroy(&hwsim_radios_rht);
4091 unregister_netdev(hwsim_mon);
4092 platform_driver_unregister(&mac80211_hwsim_driver);
4093 unregister_pernet_device(&hwsim_net_ops);
4094 }
4095 module_exit(exit_mac80211_hwsim);
Linux with added FPC-III support