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debugfs_sta: Remove unneeded semicolons
[linux-2.6-block.git] / drivers / net / wireless / mac80211_hwsim.c
CommitLineData
acc1e7a3
JM		 1/*
2 * mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211
3 * Copyright (c) 2008, Jouni Malinen <j@w1.fi>
7882513b 4 * Copyright (c) 2011, Javier Lopez <jlopex@gmail.com>
acc1e7a3
JM		 5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10
11/*
12 * TODO:
2b2d7795
JB		 13 * - Add TSF sync and fix IBSS beacon transmission by adding
14 * competition for "air time" at TBTT
acc1e7a3
JM		 15 * - RX filtering based on filter configuration (data->rx_filter)
16 */
17
0e057d73 18#include <linux/list.h>
5a0e3ad6 19#include <linux/slab.h>
0e057d73 20#include <linux/spinlock.h>
90e3012e
JB		 21#include <net/dst.h>
22#include <net/xfrm.h>
acc1e7a3
JM		 23#include <net/mac80211.h>
24#include <net/ieee80211_radiotap.h>
25#include <linux/if_arp.h>
26#include <linux/rtnetlink.h>
27#include <linux/etherdevice.h>
9ea92774 28#include <linux/platform_device.h>
fc6971d4 29#include <linux/debugfs.h>
9d9779e7 30#include <linux/module.h>
2f40b940 31#include <linux/ktime.h>
7882513b 32#include <net/genetlink.h>
100cb9ff
MW		 33#include <net/net_namespace.h>
34#include <net/netns/generic.h>
c6509cc3 35#include <linux/rhashtable.h>
7882513b
JL		 36#include "mac80211_hwsim.h"
37
38#define WARN_QUEUE 100
39#define MAX_QUEUE 200
acc1e7a3
JM		 40
41MODULE_AUTHOR("Jouni Malinen");
42MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
43MODULE_LICENSE("GPL");
44
45static int radios = 2;
46module_param(radios, int, 0444);
47MODULE_PARM_DESC(radios, "Number of simulated radios");
48
e8261171
JB		 49static int channels = 1;
50module_param(channels, int, 0444);
51MODULE_PARM_DESC(channels, "Number of concurrent channels");
69068036 52
a357d7f9
JB		 53static bool paged_rx = false;
54module_param(paged_rx, bool, 0644);
55MODULE_PARM_DESC(paged_rx, "Use paged SKBs for RX instead of linear ones");
56
1eb32179
KB		 57static bool rctbl = false;
58module_param(rctbl, bool, 0444);
59MODULE_PARM_DESC(rctbl, "Handle rate control table");
60
8c66a3d9
JB		 61static bool support_p2p_device = true;
62module_param(support_p2p_device, bool, 0444);
63MODULE_PARM_DESC(support_p2p_device, "Support P2P-Device interface type");
64
4a5af9c2
LR		 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.
25985edc 89 * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We accomplish
4a5af9c2
LR		 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 */
122enum 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 */
137static int regtest = HWSIM_REGTEST_DISABLED;
138module_param(regtest, int, 0444);
139MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run");
140
141static const char *hwsim_alpha2s[] = {
142 "FI",
143 "AL",
144 "US",
145 "DE",
146 "JP",
147 "AL",
148};
149
150static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = {
151 .n_reg_rules = 4,
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 }
159};
160
161static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = {
162 .n_reg_rules = 2,
163 .alpha2 = "99",
164 .reg_rules = {
165 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
166 REG_RULE(5725-10, 5850+10, 40, 0, 30,
8fe02e16 167 NL80211_RRF_NO_IR),
4a5af9c2
LR		 168 }
169};
170
26b0e411
JB		 171static const struct ieee80211_regdomain *hwsim_world_regdom_custom[] = {
172 &hwsim_world_regdom_custom_01,
173 &hwsim_world_regdom_custom_02,
174};
175
8aa21e6f
JB		 176struct hwsim_vif_priv {
177 u32 magic;
fc6971d4
JM		 178 u8 bssid[ETH_ALEN];
179 bool assoc;
0bb861e6 180 bool bcn_en;
fc6971d4 181 u16 aid;
8aa21e6f
JB		 182};
183
184#define HWSIM_VIF_MAGIC 0x69537748
185
186static inline void hwsim_check_magic(struct ieee80211_vif *vif)
187{
188 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
e8261171
JB		 189 WARN(vp->magic != HWSIM_VIF_MAGIC,
190 "Invalid VIF (%p) magic %#x, %pM, %d/%d\n",
191 vif, vp->magic, vif->addr, vif->type, vif->p2p);
8aa21e6f
JB		 192}
193
194static inline void hwsim_set_magic(struct ieee80211_vif *vif)
195{
196 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
197 vp->magic = HWSIM_VIF_MAGIC;
198}
199
200static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
201{
202 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
203 vp->magic = 0;
204}
acc1e7a3 205
81c06523
JB		 206struct hwsim_sta_priv {
207 u32 magic;
208};
209
e8261171 210#define HWSIM_STA_MAGIC 0x6d537749
81c06523
JB		 211
212static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
213{
214 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
5d6924ea 215 WARN_ON(sp->magic != HWSIM_STA_MAGIC);
81c06523
JB		 216}
217
218static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
219{
220 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
5d6924ea 221 sp->magic = HWSIM_STA_MAGIC;
81c06523
JB		 222}
223
224static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
225{
226 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
227 sp->magic = 0;
228}
229
e8261171
JB		 230struct hwsim_chanctx_priv {
231 u32 magic;
232};
233
234#define HWSIM_CHANCTX_MAGIC 0x6d53774a
235
236static inline void hwsim_check_chanctx_magic(struct ieee80211_chanctx_conf *c)
237{
238 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
239 WARN_ON(cp->magic != HWSIM_CHANCTX_MAGIC);
240}
241
242static inline void hwsim_set_chanctx_magic(struct ieee80211_chanctx_conf *c)
243{
244 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
245 cp->magic = HWSIM_CHANCTX_MAGIC;
246}
247
248static inline void hwsim_clear_chanctx_magic(struct ieee80211_chanctx_conf *c)
249{
250 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
251 cp->magic = 0;
252}
253
c7d03a00 254static unsigned int hwsim_net_id;
100cb9ff
MW		 255
256static int hwsim_netgroup;
257
258struct hwsim_net {
259 int netgroup;
f21e4d8e 260 u32 wmediumd;
100cb9ff
MW		 261};
262
263static inline int hwsim_net_get_netgroup(struct net *net)
264{
265 struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
266
267 return hwsim_net->netgroup;
268}
269
270static inline void hwsim_net_set_netgroup(struct net *net)
271{
272 struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
273
274 hwsim_net->netgroup = hwsim_netgroup++;
275}
276
f21e4d8e
MW		 277static inline u32 hwsim_net_get_wmediumd(struct net *net)
278{
279 struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
280
281 return hwsim_net->wmediumd;
282}
283
284static inline void hwsim_net_set_wmediumd(struct net *net, u32 portid)
285{
286 struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
287
288 hwsim_net->wmediumd = portid;
289}
290
acc1e7a3
JM		 291static struct class *hwsim_class;
292
acc1e7a3
JM		 293static struct net_device *hwsim_mon; /* global monitor netdev */
294
22cad735 295#define CHAN2G(_freq) { \
57fbcce3 296 .band = NL80211_BAND_2GHZ, \
22cad735
LR		 297 .center_freq = (_freq), \
298 .hw_value = (_freq), \
299 .max_power = 20, \
300}
301
302#define CHAN5G(_freq) { \
57fbcce3 303 .band = NL80211_BAND_5GHZ, \
22cad735
LR		 304 .center_freq = (_freq), \
305 .hw_value = (_freq), \
306 .max_power = 20, \
307}
308
309static const struct ieee80211_channel hwsim_channels_2ghz[] = {
310 CHAN2G(2412), /* Channel 1 */
311 CHAN2G(2417), /* Channel 2 */
312 CHAN2G(2422), /* Channel 3 */
313 CHAN2G(2427), /* Channel 4 */
314 CHAN2G(2432), /* Channel 5 */
315 CHAN2G(2437), /* Channel 6 */
316 CHAN2G(2442), /* Channel 7 */
317 CHAN2G(2447), /* Channel 8 */
318 CHAN2G(2452), /* Channel 9 */
319 CHAN2G(2457), /* Channel 10 */
320 CHAN2G(2462), /* Channel 11 */
321 CHAN2G(2467), /* Channel 12 */
322 CHAN2G(2472), /* Channel 13 */
323 CHAN2G(2484), /* Channel 14 */
324};
acc1e7a3 325
22cad735
LR		 326static const struct ieee80211_channel hwsim_channels_5ghz[] = {
327 CHAN5G(5180), /* Channel 36 */
328 CHAN5G(5200), /* Channel 40 */
329 CHAN5G(5220), /* Channel 44 */
330 CHAN5G(5240), /* Channel 48 */
331
332 CHAN5G(5260), /* Channel 52 */
333 CHAN5G(5280), /* Channel 56 */
334 CHAN5G(5300), /* Channel 60 */
335 CHAN5G(5320), /* Channel 64 */
336
337 CHAN5G(5500), /* Channel 100 */
338 CHAN5G(5520), /* Channel 104 */
339 CHAN5G(5540), /* Channel 108 */
340 CHAN5G(5560), /* Channel 112 */
341 CHAN5G(5580), /* Channel 116 */
342 CHAN5G(5600), /* Channel 120 */
343 CHAN5G(5620), /* Channel 124 */
344 CHAN5G(5640), /* Channel 128 */
345 CHAN5G(5660), /* Channel 132 */
346 CHAN5G(5680), /* Channel 136 */
347 CHAN5G(5700), /* Channel 140 */
348
349 CHAN5G(5745), /* Channel 149 */
350 CHAN5G(5765), /* Channel 153 */
351 CHAN5G(5785), /* Channel 157 */
352 CHAN5G(5805), /* Channel 161 */
353 CHAN5G(5825), /* Channel 165 */
85bbd803 354 CHAN5G(5845), /* Channel 169 */
acc1e7a3
JM		 355};
356
357static const struct ieee80211_rate hwsim_rates[] = {
358 { .bitrate = 10 },
359 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
360 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
361 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
362 { .bitrate = 60 },
363 { .bitrate = 90 },
364 { .bitrate = 120 },
365 { .bitrate = 180 },
366 { .bitrate = 240 },
367 { .bitrate = 360 },
368 { .bitrate = 480 },
369 { .bitrate = 540 }
370};
371
d5d011b4
JM		 372#define OUI_QCA 0x001374
373#define QCA_NL80211_SUBCMD_TEST 1
374enum qca_nl80211_vendor_subcmds {
375 QCA_WLAN_VENDOR_ATTR_TEST = 8,
376 QCA_WLAN_VENDOR_ATTR_MAX = QCA_WLAN_VENDOR_ATTR_TEST
377};
378
379static const struct nla_policy
380hwsim_vendor_test_policy[QCA_WLAN_VENDOR_ATTR_MAX + 1] = {
381 [QCA_WLAN_VENDOR_ATTR_MAX] = { .type = NLA_U32 },
382};
383
384static int mac80211_hwsim_vendor_cmd_test(struct wiphy *wiphy,
385 struct wireless_dev *wdev,
386 const void *data, int data_len)
387{
388 struct sk_buff *skb;
389 struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_MAX + 1];
390 int err;
391 u32 val;
392
393 err = nla_parse(tb, QCA_WLAN_VENDOR_ATTR_MAX, data, data_len,
fceb6435 394 hwsim_vendor_test_policy, NULL);
d5d011b4
JM		 395 if (err)
396 return err;
397 if (!tb[QCA_WLAN_VENDOR_ATTR_TEST])
398 return -EINVAL;
399 val = nla_get_u32(tb[QCA_WLAN_VENDOR_ATTR_TEST]);
62b093b3 400 wiphy_dbg(wiphy, "%s: test=%u\n", __func__, val);
d5d011b4
JM		 401
402 /* Send a vendor event as a test. Note that this would not normally be
403 * done within a command handler, but rather, based on some other
404 * trigger. For simplicity, this command is used to trigger the event
405 * here.
406 *
407 * event_idx = 0 (index in mac80211_hwsim_vendor_commands)
408 */
409 skb = cfg80211_vendor_event_alloc(wiphy, wdev, 100, 0, GFP_KERNEL);
410 if (skb) {
411 /* skb_put() or nla_put() will fill up data within
412 * NL80211_ATTR_VENDOR_DATA.
413 */
414
415 /* Add vendor data */
416 nla_put_u32(skb, QCA_WLAN_VENDOR_ATTR_TEST, val + 1);
417
418 /* Send the event - this will call nla_nest_end() */
419 cfg80211_vendor_event(skb, GFP_KERNEL);
420 }
421
422 /* Send a response to the command */
423 skb = cfg80211_vendor_cmd_alloc_reply_skb(wiphy, 10);
424 if (!skb)
425 return -ENOMEM;
426
427 /* skb_put() or nla_put() will fill up data within
428 * NL80211_ATTR_VENDOR_DATA
429 */
430 nla_put_u32(skb, QCA_WLAN_VENDOR_ATTR_TEST, val + 2);
431
432 return cfg80211_vendor_cmd_reply(skb);
433}
434
435static struct wiphy_vendor_command mac80211_hwsim_vendor_commands[] = {
436 {
437 .info = { .vendor_id = OUI_QCA,
438 .subcmd = QCA_NL80211_SUBCMD_TEST },
439 .flags = WIPHY_VENDOR_CMD_NEED_NETDEV,
440 .doit = mac80211_hwsim_vendor_cmd_test,
441 }
442};
443
444/* Advertise support vendor specific events */
445static const struct nl80211_vendor_cmd_info mac80211_hwsim_vendor_events[] = {
446 { .vendor_id = OUI_QCA, .subcmd = 1 },
447};
448
de0421d5
JB		 449static const struct ieee80211_iface_limit hwsim_if_limits[] = {
450 { .max = 1, .types = BIT(NL80211_IFTYPE_ADHOC) },
451 { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) |
452 BIT(NL80211_IFTYPE_P2P_CLIENT) |
453#ifdef CONFIG_MAC80211_MESH
454 BIT(NL80211_IFTYPE_MESH_POINT) |
455#endif
456 BIT(NL80211_IFTYPE_AP) |
457 BIT(NL80211_IFTYPE_P2P_GO) },
8c66a3d9
JB		 458 /* must be last, see hwsim_if_comb */
459 { .max = 1, .types = BIT(NL80211_IFTYPE_P2P_DEVICE) }
de0421d5
JB		 460};
461
de0421d5 462static const struct ieee80211_iface_combination hwsim_if_comb[] = {
8c66a3d9
JB		 463 {
464 .limits = hwsim_if_limits,
465 /* remove the last entry which is P2P_DEVICE */
466 .n_limits = ARRAY_SIZE(hwsim_if_limits) - 1,
467 .max_interfaces = 2048,
468 .num_different_channels = 1,
8c66a3d9
JB		 469 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
470 BIT(NL80211_CHAN_WIDTH_20) |
471 BIT(NL80211_CHAN_WIDTH_40) |
472 BIT(NL80211_CHAN_WIDTH_80) |
473 BIT(NL80211_CHAN_WIDTH_160),
f7736f50 474 },
8c66a3d9
JB		 475};
476
477static const struct ieee80211_iface_combination hwsim_if_comb_p2p_dev[] = {
de0421d5
JB		 478 {
479 .limits = hwsim_if_limits,
480 .n_limits = ARRAY_SIZE(hwsim_if_limits),
481 .max_interfaces = 2048,
482 .num_different_channels = 1,
de0421d5
JB		 483 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
484 BIT(NL80211_CHAN_WIDTH_20) |
485 BIT(NL80211_CHAN_WIDTH_40) |
486 BIT(NL80211_CHAN_WIDTH_80) |
487 BIT(NL80211_CHAN_WIDTH_160),
f7736f50 488 },
de0421d5
JB		 489};
490
0e057d73 491static spinlock_t hwsim_radio_lock;
b59abfbe 492static LIST_HEAD(hwsim_radios);
c6509cc3 493static struct rhashtable hwsim_radios_rht;
2d68992b 494static int hwsim_radio_idx;
0e057d73 495
de0421d5
JB		 496static struct platform_driver mac80211_hwsim_driver = {
497 .driver = {
498 .name = "mac80211_hwsim",
de0421d5
JB		 499 },
500};
0e057d73 501
acc1e7a3 502struct mac80211_hwsim_data {
0e057d73 503 struct list_head list;
c6509cc3 504 struct rhash_head rht;
0e057d73 505 struct ieee80211_hw *hw;
acc1e7a3 506 struct device *dev;
57fbcce3 507 struct ieee80211_supported_band bands[NUM_NL80211_BANDS];
22cad735
LR		 508 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
509 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
acc1e7a3 510 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
38ed5048 511 struct ieee80211_iface_combination if_combination;
acc1e7a3 512
ef15aac6 513 struct mac_address addresses[2];
bc791098 514 int channels, idx;
361c3e04 515 bool use_chanctx;
e9ed49bf
JR		 516 bool destroy_on_close;
517 struct work_struct destroy_work;
518 u32 portid;
93d638d4
PF		 519 char alpha2[2];
520 const struct ieee80211_regdomain *regd;
ef15aac6 521
e8261171 522 struct ieee80211_channel *tmp_chan;
661ef475
JB		 523 struct ieee80211_channel *roc_chan;
524 u32 roc_duration;
525 struct delayed_work roc_start;
e8261171
JB		 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;
339467b9 531 u8 scan_addr[ETH_ALEN];
7f813ce1
JB		 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)];
e8261171 537
acc1e7a3 538 struct ieee80211_channel *channel;
01e59e46 539 u64 beacon_int /* beacon interval in us */;
acc1e7a3 540 unsigned int rx_filter;
f74cb0f7
LR		 541 bool started, idle, scanning;
542 struct mutex mutex;
01e59e46 543 struct tasklet_hrtimer beacon_timer;
fc6971d4
JM		 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;
73606d00 549
959eb2fd 550 uintptr_t pending_cookie;
7882513b 551 struct sk_buff_head pending; /* packets pending */
73606d00
DW		 552 /*
553 * Only radios in the same group can communicate together (the
554 * channel has to match too). Each bit represents a group. A
9ebac15f 555 * radio can be in more than one group.
73606d00
DW		 556 */
557 u64 group;
bdd7bd16 558
100cb9ff
MW		 559 /* group shared by radios created in the same netns */
560 int netgroup;
f21e4d8e
MW		 561 /* wmediumd portid responsible for netgroup of this radio */
562 u32 wmediumd;
100cb9ff 563
2f40b940 564 /* difference between this hw's clock and the real clock, in usecs */
45034bfb 565 s64 tsf_offset;
c51f8783 566 s64 bcn_delta;
b66851c3
TP		 567 /* absolute beacon transmission time. Used to cover up "tx" delay. */
568 u64 abs_bcn_ts;
2155c3f8
BG		 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;
acc1e7a3
JM		 577};
578
c6509cc3
BB		 579static 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};
acc1e7a3
JM		 586
587struct hwsim_radiotap_hdr {
588 struct ieee80211_radiotap_header hdr;
2f40b940 589 __le64 rt_tsft;
acc1e7a3
JM		 590 u8 rt_flags;
591 u8 rt_rate;
592 __le16 rt_channel;
593 __le16 rt_chbitmask;
ba2d3587 594} __packed;
acc1e7a3 595
76a56eb3
JM		 596struct 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
489111e5
JB		 604/* MAC80211_HWSIM netlink family */
605static struct genl_family hwsim_genl_family;
7882513b 606
62759361
JR		 607enum hwsim_multicast_groups {
608 HWSIM_MCGRP_CONFIG,
609};
610
611static const struct genl_multicast_group hwsim_mcgrps[] = {
612 [HWSIM_MCGRP_CONFIG] = { .name = "config", },
613};
614
7882513b
JL		 615/* MAC80211_HWSIM netlink policy */
616
205d2429 617static const struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
9ddd12af
JB		 618 [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
619 [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
7882513b
JL		 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,
9ddd12af
JB		 626 .len = IEEE80211_TX_MAX_RATES *
627 sizeof(struct hwsim_tx_rate)},
7882513b 628 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
bc791098
JB		 629 [HWSIM_ATTR_CHANNELS] = { .type = NLA_U32 },
630 [HWSIM_ATTR_RADIO_ID] = { .type = NLA_U32 },
26b0e411
JB		 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 },
8c66a3d9 634 [HWSIM_ATTR_SUPPORT_P2P_DEVICE] = { .type = NLA_FLAG },
e9ed49bf 635 [HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE] = { .type = NLA_FLAG },
de29eda8
JB		 636 [HWSIM_ATTR_RADIO_NAME] = { .type = NLA_STRING },
637 [HWSIM_ATTR_NO_VIF] = { .type = NLA_FLAG },
638 [HWSIM_ATTR_FREQ] = { .type = NLA_U32 },
7882513b 639};
acc1e7a3 640
de0421d5
JB		 641static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
642 struct sk_buff *skb,
643 struct ieee80211_channel *chan);
644
645/* sysfs attributes */
646static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
647{
648 struct mac80211_hwsim_data *data = dat;
649 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
650 struct sk_buff *skb;
651 struct ieee80211_pspoll *pspoll;
652
653 if (!vp->assoc)
654 return;
655
62b093b3
LR		 656 wiphy_dbg(data->hw->wiphy,
657 "%s: send PS-Poll to %pM for aid %d\n",
658 __func__, vp->bssid, vp->aid);
de0421d5
JB		 659
660 skb = dev_alloc_skb(sizeof(*pspoll));
661 if (!skb)
662 return;
4df864c1 663 pspoll = skb_put(skb, sizeof(*pspoll));
de0421d5
JB		 664 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
665 IEEE80211_STYPE_PSPOLL |
666 IEEE80211_FCTL_PM);
667 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
668 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
669 memcpy(pspoll->ta, mac, ETH_ALEN);
670
671 rcu_read_lock();
672 mac80211_hwsim_tx_frame(data->hw, skb,
673 rcu_dereference(vif->chanctx_conf)->def.chan);
674 rcu_read_unlock();
675}
676
677static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
678 struct ieee80211_vif *vif, int ps)
679{
680 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
681 struct sk_buff *skb;
682 struct ieee80211_hdr *hdr;
683
684 if (!vp->assoc)
685 return;
686
62b093b3
LR		 687 wiphy_dbg(data->hw->wiphy,
688 "%s: send data::nullfunc to %pM ps=%d\n",
689 __func__, vp->bssid, ps);
de0421d5
JB		 690
691 skb = dev_alloc_skb(sizeof(*hdr));
692 if (!skb)
693 return;
4df864c1 694 hdr = skb_put(skb, sizeof(*hdr) - ETH_ALEN);
de0421d5
JB		 695 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
696 IEEE80211_STYPE_NULLFUNC |
b65c7b8a 697 IEEE80211_FCTL_TODS |
de0421d5
JB		 698 (ps ? IEEE80211_FCTL_PM : 0));
699 hdr->duration_id = cpu_to_le16(0);
700 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
701 memcpy(hdr->addr2, mac, ETH_ALEN);
702 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
703
704 rcu_read_lock();
705 mac80211_hwsim_tx_frame(data->hw, skb,
706 rcu_dereference(vif->chanctx_conf)->def.chan);
707 rcu_read_unlock();
708}
709
710
711static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
712 struct ieee80211_vif *vif)
713{
714 struct mac80211_hwsim_data *data = dat;
715 hwsim_send_nullfunc(data, mac, vif, 1);
716}
717
718static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
719 struct ieee80211_vif *vif)
720{
721 struct mac80211_hwsim_data *data = dat;
722 hwsim_send_nullfunc(data, mac, vif, 0);
723}
724
725static int hwsim_fops_ps_read(void *dat, u64 *val)
726{
727 struct mac80211_hwsim_data *data = dat;
728 *val = data->ps;
729 return 0;
730}
731
732static int hwsim_fops_ps_write(void *dat, u64 val)
733{
734 struct mac80211_hwsim_data *data = dat;
735 enum ps_mode old_ps;
736
737 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
738 val != PS_MANUAL_POLL)
739 return -EINVAL;
740
de0421d5 741 if (val == PS_MANUAL_POLL) {
e16ea4bb
AA		 742 if (data->ps != PS_ENABLED)
743 return -EINVAL;
744 local_bh_disable();
a809ca5e
JB		 745 ieee80211_iterate_active_interfaces_atomic(
746 data->hw, IEEE80211_IFACE_ITER_NORMAL,
747 hwsim_send_ps_poll, data);
e16ea4bb
AA		 748 local_bh_enable();
749 return 0;
750 }
751 old_ps = data->ps;
752 data->ps = val;
753
754 local_bh_disable();
755 if (old_ps == PS_DISABLED && val != PS_DISABLED) {
a809ca5e
JB		 756 ieee80211_iterate_active_interfaces_atomic(
757 data->hw, IEEE80211_IFACE_ITER_NORMAL,
758 hwsim_send_nullfunc_ps, data);
de0421d5 759 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
a809ca5e
JB		 760 ieee80211_iterate_active_interfaces_atomic(
761 data->hw, IEEE80211_IFACE_ITER_NORMAL,
762 hwsim_send_nullfunc_no_ps, data);
de0421d5 763 }
a809ca5e 764 local_bh_enable();
de0421d5
JB		 765
766 return 0;
767}
768
769DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
770 "%llu\n");
771
772static int hwsim_write_simulate_radar(void *dat, u64 val)
773{
774 struct mac80211_hwsim_data *data = dat;
775
776 ieee80211_radar_detected(data->hw);
777
778 return 0;
779}
780
781DEFINE_SIMPLE_ATTRIBUTE(hwsim_simulate_radar, NULL,
782 hwsim_write_simulate_radar, "%llu\n");
783
784static int hwsim_fops_group_read(void *dat, u64 *val)
785{
786 struct mac80211_hwsim_data *data = dat;
787 *val = data->group;
788 return 0;
789}
790
791static int hwsim_fops_group_write(void *dat, u64 val)
792{
793 struct mac80211_hwsim_data *data = dat;
794 data->group = val;
795 return 0;
796}
797
798DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
799 hwsim_fops_group_read, hwsim_fops_group_write,
800 "%llx\n");
801
d0cf9c0d
SH		 802static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
803 struct net_device *dev)
acc1e7a3
JM		 804{
805 /* TODO: allow packet injection */
806 dev_kfree_skb(skb);
6ed10654 807 return NETDEV_TX_OK;
acc1e7a3
JM		 808}
809
b66851c3
TP		 810static inline u64 mac80211_hwsim_get_tsf_raw(void)
811{
812 return ktime_to_us(ktime_get_real());
813}
814
2f40b940
JC		 815static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
816{
b66851c3 817 u64 now = mac80211_hwsim_get_tsf_raw();
2f40b940
JC		 818 return cpu_to_le64(now + data->tsf_offset);
819}
acc1e7a3 820
12ce8ba3 821static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
b66851c3 822 struct ieee80211_vif *vif)
12ce8ba3
JC		 823{
824 struct mac80211_hwsim_data *data = hw->priv;
825 return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
826}
827
828static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
829 struct ieee80211_vif *vif, u64 tsf)
830{
831 struct mac80211_hwsim_data *data = hw->priv;
45034bfb 832 u64 now = mac80211_hwsim_get_tsf(hw, vif);
c51f8783 833 u32 bcn_int = data->beacon_int;
79211c8e 834 u64 delta = abs(tsf - now);
45034bfb 835
c51f8783 836 /* adjust after beaconing with new timestamp at old TBTT */
5d26b508
AB		 837 if (tsf > now) {
838 data->tsf_offset += delta;
839 data->bcn_delta = do_div(delta, bcn_int);
840 } else {
841 data->tsf_offset -= delta;
4fb7f8af 842 data->bcn_delta = -(s64)do_div(delta, bcn_int);
5d26b508 843 }
12ce8ba3
JC		 844}
845
acc1e7a3 846static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
e8261171
JB		 847 struct sk_buff *tx_skb,
848 struct ieee80211_channel *chan)
acc1e7a3
JM		 849{
850 struct mac80211_hwsim_data *data = hw->priv;
851 struct sk_buff *skb;
852 struct hwsim_radiotap_hdr *hdr;
853 u16 flags;
854 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
855 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
856
89f44d8c
AK		 857 if (WARN_ON(!txrate))
858 return;
859
acc1e7a3
JM		 860 if (!netif_running(hwsim_mon))
861 return;
862
863 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
864 if (skb == NULL)
865 return;
866
d58ff351 867 hdr = skb_push(skb, sizeof(*hdr));
acc1e7a3
JM		 868 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
869 hdr->hdr.it_pad = 0;
870 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
f248f105
JM		 871 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
872 (1 << IEEE80211_RADIOTAP_RATE) |
2f40b940 873 (1 << IEEE80211_RADIOTAP_TSFT) |
f248f105 874 (1 << IEEE80211_RADIOTAP_CHANNEL));
2f40b940 875 hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
acc1e7a3
JM		 876 hdr->rt_flags = 0;
877 hdr->rt_rate = txrate->bitrate / 5;
e8261171 878 hdr->rt_channel = cpu_to_le16(chan->center_freq);
acc1e7a3
JM		 879 flags = IEEE80211_CHAN_2GHZ;
880 if (txrate->flags & IEEE80211_RATE_ERP_G)
881 flags |= IEEE80211_CHAN_OFDM;
882 else
883 flags |= IEEE80211_CHAN_CCK;
884 hdr->rt_chbitmask = cpu_to_le16(flags);
885
886 skb->dev = hwsim_mon;
6b163a85 887 skb_reset_mac_header(skb);
acc1e7a3
JM		 888 skb->ip_summed = CHECKSUM_UNNECESSARY;
889 skb->pkt_type = PACKET_OTHERHOST;
f248f105 890 skb->protocol = htons(ETH_P_802_2);
acc1e7a3
JM		 891 memset(skb->cb, 0, sizeof(skb->cb));
892 netif_rx(skb);
893}
894
895
e8261171
JB		 896static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
897 const u8 *addr)
6c085227 898{
6c085227 899 struct sk_buff *skb;
76a56eb3 900 struct hwsim_radiotap_ack_hdr *hdr;
6c085227
JM		 901 u16 flags;
902 struct ieee80211_hdr *hdr11;
903
904 if (!netif_running(hwsim_mon))
905 return;
906
907 skb = dev_alloc_skb(100);
908 if (skb == NULL)
909 return;
910
4df864c1 911 hdr = skb_put(skb, sizeof(*hdr));
6c085227
JM		 912 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
913 hdr->hdr.it_pad = 0;
914 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
915 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
916 (1 << IEEE80211_RADIOTAP_CHANNEL));
917 hdr->rt_flags = 0;
76a56eb3 918 hdr->pad = 0;
e8261171 919 hdr->rt_channel = cpu_to_le16(chan->center_freq);
6c085227
JM		 920 flags = IEEE80211_CHAN_2GHZ;
921 hdr->rt_chbitmask = cpu_to_le16(flags);
922
4df864c1 923 hdr11 = skb_put(skb, 10);
6c085227
JM		 924 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
925 IEEE80211_STYPE_ACK);
926 hdr11->duration_id = cpu_to_le16(0);
927 memcpy(hdr11->addr1, addr, ETH_ALEN);
928
929 skb->dev = hwsim_mon;
6b163a85 930 skb_reset_mac_header(skb);
6c085227
JM		 931 skb->ip_summed = CHECKSUM_UNNECESSARY;
932 skb->pkt_type = PACKET_OTHERHOST;
933 skb->protocol = htons(ETH_P_802_2);
934 memset(skb->cb, 0, sizeof(skb->cb));
935 netif_rx(skb);
936}
937
3283e286
JB		 938struct mac80211_hwsim_addr_match_data {
939 u8 addr[ETH_ALEN];
940 bool ret;
941};
942
943static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
944 struct ieee80211_vif *vif)
945{
946 struct mac80211_hwsim_addr_match_data *md = data;
947
948 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
949 md->ret = true;
950}
951
952static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
953 const u8 *addr)
954{
955 struct mac80211_hwsim_addr_match_data md = {
956 .ret = false,
957 };
958
339467b9
JB		 959 if (data->scanning && memcmp(addr, data->scan_addr, ETH_ALEN) == 0)
960 return true;
961
3283e286
JB		 962 memcpy(md.addr, addr, ETH_ALEN);
963
964 ieee80211_iterate_active_interfaces_atomic(data->hw,
965 IEEE80211_IFACE_ITER_NORMAL,
966 mac80211_hwsim_addr_iter,
967 &md);
968
969 return md.ret;
970}
6c085227 971
fc6971d4
JM		 972static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
973 struct sk_buff *skb)
974{
975 switch (data->ps) {
976 case PS_DISABLED:
977 return true;
978 case PS_ENABLED:
979 return false;
980 case PS_AUTO_POLL:
981 /* TODO: accept (some) Beacons by default and other frames only
982 * if pending PS-Poll has been sent */
983 return true;
984 case PS_MANUAL_POLL:
985 /* Allow unicast frames to own address if there is a pending
986 * PS-Poll */
987 if (data->ps_poll_pending &&
3283e286 988 mac80211_hwsim_addr_match(data, skb->data + 4)) {
fc6971d4
JM		 989 data->ps_poll_pending = false;
990 return true;
991 }
992 return false;
993 }
994
995 return true;
996}
997
f21e4d8e
MW		 998static int hwsim_unicast_netgroup(struct mac80211_hwsim_data *data,
999 struct sk_buff *skb, int portid)
1000{
1001 struct net *net;
1002 bool found = false;
1003 int res = -ENOENT;
1004
1005 rcu_read_lock();
1006 for_each_net_rcu(net) {
1007 if (data->netgroup == hwsim_net_get_netgroup(net)) {
1008 res = genlmsg_unicast(net, skb, portid);
1009 found = true;
1010 break;
1011 }
1012 }
1013 rcu_read_unlock();
1014
1015 if (!found)
1016 nlmsg_free(skb);
1017
1018 return res;
1019}
1020
6e3d6ca1
BB		 1021static inline u16 trans_tx_rate_flags_ieee2hwsim(struct ieee80211_tx_rate *rate)
1022{
1023 u16 result = 0;
1024
1025 if (rate->flags & IEEE80211_TX_RC_USE_RTS_CTS)
1026 result |= MAC80211_HWSIM_TX_RC_USE_RTS_CTS;
1027 if (rate->flags & IEEE80211_TX_RC_USE_CTS_PROTECT)
1028 result |= MAC80211_HWSIM_TX_RC_USE_CTS_PROTECT;
1029 if (rate->flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
1030 result |= MAC80211_HWSIM_TX_RC_USE_SHORT_PREAMBLE;
1031 if (rate->flags & IEEE80211_TX_RC_MCS)
1032 result |= MAC80211_HWSIM_TX_RC_MCS;
1033 if (rate->flags & IEEE80211_TX_RC_GREEN_FIELD)
1034 result |= MAC80211_HWSIM_TX_RC_GREEN_FIELD;
1035 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
1036 result |= MAC80211_HWSIM_TX_RC_40_MHZ_WIDTH;
1037 if (rate->flags & IEEE80211_TX_RC_DUP_DATA)
1038 result |= MAC80211_HWSIM_TX_RC_DUP_DATA;
1039 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
1040 result |= MAC80211_HWSIM_TX_RC_SHORT_GI;
1041 if (rate->flags & IEEE80211_TX_RC_VHT_MCS)
1042 result |= MAC80211_HWSIM_TX_RC_VHT_MCS;
1043 if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
1044 result |= MAC80211_HWSIM_TX_RC_80_MHZ_WIDTH;
1045 if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
1046 result |= MAC80211_HWSIM_TX_RC_160_MHZ_WIDTH;
1047
1048 return result;
1049}
1050
7882513b
JL		 1051static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
1052 struct sk_buff *my_skb,
15e47304 1053 int dst_portid)
7882513b
JL		 1054{
1055 struct sk_buff *skb;
1056 struct mac80211_hwsim_data *data = hw->priv;
1057 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
1058 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
1059 void *msg_head;
1060 unsigned int hwsim_flags = 0;
1061 int i;
1062 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
6e3d6ca1 1063 struct hwsim_tx_rate_flag tx_attempts_flags[IEEE80211_TX_MAX_RATES];
959eb2fd 1064 uintptr_t cookie;
7882513b 1065
7882513b
JL		 1066 if (data->ps != PS_DISABLED)
1067 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1068 /* If the queue contains MAX_QUEUE skb's drop some */
1069 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
1070 /* Droping until WARN_QUEUE level */
2155c3f8 1071 while (skb_queue_len(&data->pending) >= WARN_QUEUE) {
b7bc9679 1072 ieee80211_free_txskb(hw, skb_dequeue(&data->pending));
2155c3f8
BG		 1073 data->tx_dropped++;
1074 }
7882513b
JL		 1075 }
1076
58050fce 1077 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
7882513b
JL		 1078 if (skb == NULL)
1079 goto nla_put_failure;
1080
1081 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
1082 HWSIM_CMD_FRAME);
1083 if (msg_head == NULL) {
62b093b3 1084 pr_debug("mac80211_hwsim: problem with msg_head\n");
7882513b
JL		 1085 goto nla_put_failure;
1086 }
1087
354210f8
BC		 1088 if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
1089 ETH_ALEN, data->addresses[1].addr))
633c9389 1090 goto nla_put_failure;
265dc7f0 1091
7882513b 1092 /* We get the skb->data */
633c9389
DM		 1093 if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
1094 goto nla_put_failure;
7882513b
JL		 1095
1096 /* We get the flags for this transmission, and we translate them to
1097 wmediumd flags */
1098
1099 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
1100 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
1101
1102 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
1103 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
1104
633c9389
DM		 1105 if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
1106 goto nla_put_failure;
7882513b 1107
4f86ed8f
BG		 1108 if (nla_put_u32(skb, HWSIM_ATTR_FREQ, data->channel->center_freq))
1109 goto nla_put_failure;
1110
7882513b
JL		 1111 /* We get the tx control (rate and retries) info*/
1112
1113 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
1114 tx_attempts[i].idx = info->status.rates[i].idx;
6e3d6ca1 1115 tx_attempts_flags[i].idx = info->status.rates[i].idx;
7882513b 1116 tx_attempts[i].count = info->status.rates[i].count;
6e3d6ca1
BB		 1117 tx_attempts_flags[i].flags =
1118 trans_tx_rate_flags_ieee2hwsim(
1119 &info->status.rates[i]);
7882513b
JL		 1120 }
1121
633c9389
DM		 1122 if (nla_put(skb, HWSIM_ATTR_TX_INFO,
1123 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
1124 tx_attempts))
1125 goto nla_put_failure;
7882513b 1126
6e3d6ca1
BB		 1127 if (nla_put(skb, HWSIM_ATTR_TX_INFO_FLAGS,
1128 sizeof(struct hwsim_tx_rate_flag) * IEEE80211_TX_MAX_RATES,
1129 tx_attempts_flags))
1130 goto nla_put_failure;
1131
7882513b 1132 /* We create a cookie to identify this skb */
959eb2fd
JB		 1133 data->pending_cookie++;
1134 cookie = data->pending_cookie;
1135 info->rate_driver_data[0] = (void *)cookie;
08f4cbb8 1136 if (nla_put_u64_64bit(skb, HWSIM_ATTR_COOKIE, cookie, HWSIM_ATTR_PAD))
633c9389 1137 goto nla_put_failure;
7882513b
JL		 1138
1139 genlmsg_end(skb, msg_head);
f21e4d8e 1140 if (hwsim_unicast_netgroup(data, skb, dst_portid))
f2831e20 1141 goto err_free_txskb;
7882513b
JL		 1142
1143 /* Enqueue the packet */
1144 skb_queue_tail(&data->pending, my_skb);
2155c3f8
BG		 1145 data->tx_pkts++;
1146 data->tx_bytes += my_skb->len;
7882513b
JL		 1147 return;
1148
1149nla_put_failure:
f2831e20
BC		 1150 nlmsg_free(skb);
1151err_free_txskb:
62b093b3 1152 pr_debug("mac80211_hwsim: error occurred in %s\n", __func__);
b7bc9679 1153 ieee80211_free_txskb(hw, my_skb);
2155c3f8 1154 data->tx_failed++;
7882513b
JL		 1155}
1156
e8261171
JB		 1157static bool hwsim_chans_compat(struct ieee80211_channel *c1,
1158 struct ieee80211_channel *c2)
1159{
1160 if (!c1 || !c2)
1161 return false;
1162
1163 return c1->center_freq == c2->center_freq;
1164}
1165
1166struct tx_iter_data {
1167 struct ieee80211_channel *channel;
1168 bool receive;
1169};
1170
1171static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
1172 struct ieee80211_vif *vif)
1173{
1174 struct tx_iter_data *data = _data;
1175
1176 if (!vif->chanctx_conf)
1177 return;
1178
1179 if (!hwsim_chans_compat(data->channel,
4bf88530 1180 rcu_dereference(vif->chanctx_conf)->def.chan))
e8261171
JB		 1181 return;
1182
1183 data->receive = true;
1184}
1185
1f7bba79
JB		 1186static void mac80211_hwsim_add_vendor_rtap(struct sk_buff *skb)
1187{
1188 /*
1189 * To enable this code, #define the HWSIM_RADIOTAP_OUI,
1190 * e.g. like this:
1191 * #define HWSIM_RADIOTAP_OUI "\x02\x00\x00"
1192 * (but you should use a valid OUI, not that)
1193 *
1194 * If anyone wants to 'donate' a radiotap OUI/subns code
1195 * please send a patch removing this #ifdef and changing
1196 * the values accordingly.
1197 */
1198#ifdef HWSIM_RADIOTAP_OUI
1199 struct ieee80211_vendor_radiotap *rtap;
1200
1201 /*
1202 * Note that this code requires the headroom in the SKB
1203 * that was allocated earlier.
1204 */
d58ff351 1205 rtap = skb_push(skb, sizeof(*rtap) + 8 + 4);
1f7bba79
JB		 1206 rtap->oui[0] = HWSIM_RADIOTAP_OUI[0];
1207 rtap->oui[1] = HWSIM_RADIOTAP_OUI[1];
1208 rtap->oui[2] = HWSIM_RADIOTAP_OUI[2];
1209 rtap->subns = 127;
1210
1211 /*
1212 * Radiotap vendor namespaces can (and should) also be
1213 * split into fields by using the standard radiotap
1214 * presence bitmap mechanism. Use just BIT(0) here for
1215 * the presence bitmap.
1216 */
1217 rtap->present = BIT(0);
1218 /* We have 8 bytes of (dummy) data */
1219 rtap->len = 8;
1220 /* For testing, also require it to be aligned */
1221 rtap->align = 8;
1222 /* And also test that padding works, 4 bytes */
1223 rtap->pad = 4;
1224 /* push the data */
1225 memcpy(rtap->data, "ABCDEFGH", 8);
1226 /* make sure to clear padding, mac80211 doesn't */
1227 memset(rtap->data + 8, 0, 4);
1228
1229 IEEE80211_SKB_RXCB(skb)->flag |= RX_FLAG_RADIOTAP_VENDOR_DATA;
1230#endif
1231}
1232
7882513b 1233static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
e8261171
JB		 1234 struct sk_buff *skb,
1235 struct ieee80211_channel *chan)
acc1e7a3 1236{
0e057d73
JB		 1237 struct mac80211_hwsim_data *data = hw->priv, *data2;
1238 bool ack = false;
e36cfdc9 1239 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
acc1e7a3 1240 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
e36cfdc9 1241 struct ieee80211_rx_status rx_status;
b66851c3 1242 u64 now;
acc1e7a3
JM		 1243
1244 memset(&rx_status, 0, sizeof(rx_status));
f4bda337 1245 rx_status.flag |= RX_FLAG_MACTIME_START;
e8261171
JB		 1246 rx_status.freq = chan->center_freq;
1247 rx_status.band = chan->band;
dad6330d
KB		 1248 if (info->control.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) {
1249 rx_status.rate_idx =
1250 ieee80211_rate_get_vht_mcs(&info->control.rates[0]);
8613c948 1251 rx_status.nss =
dad6330d 1252 ieee80211_rate_get_vht_nss(&info->control.rates[0]);
da6a4352 1253 rx_status.encoding = RX_ENC_VHT;
dad6330d
KB		 1254 } else {
1255 rx_status.rate_idx = info->control.rates[0].idx;
1256 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
da6a4352 1257 rx_status.encoding = RX_ENC_HT;
dad6330d 1258 }
281ed297 1259 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
2f242bf4
JB		 1260 rx_status.bw = RATE_INFO_BW_40;
1261 else if (info->control.rates[0].flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
1262 rx_status.bw = RATE_INFO_BW_80;
1263 else if (info->control.rates[0].flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
1264 rx_status.bw = RATE_INFO_BW_160;
1265 else
1266 rx_status.bw = RATE_INFO_BW_20;
281ed297 1267 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
7fdd69c5 1268 rx_status.enc_flags |= RX_ENC_FLAG_SHORT_GI;
4b14c96d 1269 /* TODO: simulate real signal strength (and optional packet loss) */
1d5e9f80
JB		 1270 rx_status.signal = -50;
1271 if (info->control.vif)
1272 rx_status.signal += info->control.vif->bss_conf.txpower;
acc1e7a3 1273
fc6971d4
JM		 1274 if (data->ps != PS_DISABLED)
1275 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1276
90e3012e
JB		 1277 /* release the skb's source info */
1278 skb_orphan(skb);
c0acf38e 1279 skb_dst_drop(skb);
90e3012e
JB		 1280 skb->mark = 0;
1281 secpath_reset(skb);
1282 nf_reset(skb);
1283
b66851c3
TP		 1284 /*
1285 * Get absolute mactime here so all HWs RX at the "same time", and
1286 * absolute TX time for beacon mactime so the timestamp matches.
1287 * Giving beacons a different mactime than non-beacons looks messy, but
1288 * it helps the Toffset be exact and a ~10us mactime discrepancy
1289 * probably doesn't really matter.
1290 */
1291 if (ieee80211_is_beacon(hdr->frame_control) ||
1292 ieee80211_is_probe_resp(hdr->frame_control))
1293 now = data->abs_bcn_ts;
1294 else
1295 now = mac80211_hwsim_get_tsf_raw();
1296
acc1e7a3 1297 /* Copy skb to all enabled radios that are on the current frequency */
0e057d73
JB		 1298 spin_lock(&hwsim_radio_lock);
1299 list_for_each_entry(data2, &hwsim_radios, list) {
acc1e7a3 1300 struct sk_buff *nskb;
e8261171
JB		 1301 struct tx_iter_data tx_iter_data = {
1302 .receive = false,
1303 .channel = chan,
1304 };
acc1e7a3 1305
0e057d73 1306 if (data == data2)
acc1e7a3 1307 continue;
0e057d73 1308
e8261171
JB		 1309 if (!data2->started || (data2->idle && !data2->tmp_chan) ||
1310 !hwsim_ps_rx_ok(data2, skb))
acc1e7a3
JM		 1311 continue;
1312
e8261171
JB		 1313 if (!(data->group & data2->group))
1314 continue;
1315
100cb9ff
MW		 1316 if (data->netgroup != data2->netgroup)
1317 continue;
1318
e8261171
JB		 1319 if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
1320 !hwsim_chans_compat(chan, data2->channel)) {
1321 ieee80211_iterate_active_interfaces_atomic(
8b2c9824
JB		 1322 data2->hw, IEEE80211_IFACE_ITER_NORMAL,
1323 mac80211_hwsim_tx_iter, &tx_iter_data);
e8261171
JB		 1324 if (!tx_iter_data.receive)
1325 continue;
1326 }
1327
90b9e446
JB		 1328 /*
1329 * reserve some space for our vendor and the normal
1330 * radiotap header, since we're copying anyway
1331 */
a357d7f9
JB		 1332 if (skb->len < PAGE_SIZE && paged_rx) {
1333 struct page *page = alloc_page(GFP_ATOMIC);
1334
1335 if (!page)
1336 continue;
1337
1338 nskb = dev_alloc_skb(128);
1339 if (!nskb) {
1340 __free_page(page);
1341 continue;
1342 }
1343
1344 memcpy(page_address(page), skb->data, skb->len);
1345 skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
1346 } else {
1347 nskb = skb_copy(skb, GFP_ATOMIC);
1348 if (!nskb)
1349 continue;
1350 }
acc1e7a3 1351
265dc7f0 1352 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
0e057d73 1353 ack = true;
f483ad25 1354
b66851c3 1355 rx_status.mactime = now + data2->tsf_offset;
90b9e446 1356
f1d58c25 1357 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
1f7bba79
JB		 1358
1359 mac80211_hwsim_add_vendor_rtap(nskb);
1360
2155c3f8
BG		 1361 data2->rx_pkts++;
1362 data2->rx_bytes += nskb->len;
f1d58c25 1363 ieee80211_rx_irqsafe(data2->hw, nskb);
acc1e7a3 1364 }
0e057d73 1365 spin_unlock(&hwsim_radio_lock);
acc1e7a3 1366
e36cfdc9
JM		 1367 return ack;
1368}
1369
36323f81
TH		 1370static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
1371 struct ieee80211_tx_control *control,
1372 struct sk_buff *skb)
e36cfdc9 1373{
e8261171
JB		 1374 struct mac80211_hwsim_data *data = hw->priv;
1375 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
732b5395 1376 struct ieee80211_hdr *hdr = (void *)skb->data;
e8261171
JB		 1377 struct ieee80211_chanctx_conf *chanctx_conf;
1378 struct ieee80211_channel *channel;
0e057d73 1379 bool ack;
15e47304 1380 u32 _portid;
e36cfdc9 1381
e8261171 1382 if (WARN_ON(skb->len < 10)) {
e36cfdc9 1383 /* Should not happen; just a sanity check for addr1 use */
fe0f3cd2 1384 ieee80211_free_txskb(hw, skb);
7bb45683 1385 return;
e36cfdc9
JM		 1386 }
1387
361c3e04 1388 if (!data->use_chanctx) {
e8261171
JB		 1389 channel = data->channel;
1390 } else if (txi->hw_queue == 4) {
1391 channel = data->tmp_chan;
1392 } else {
1393 chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf);
1394 if (chanctx_conf)
4bf88530 1395 channel = chanctx_conf->def.chan;
e8261171
JB		 1396 else
1397 channel = NULL;
1398 }
1399
1400 if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
fe0f3cd2 1401 ieee80211_free_txskb(hw, skb);
e8261171
JB		 1402 return;
1403 }
1404
1405 if (data->idle && !data->tmp_chan) {
62b093b3 1406 wiphy_dbg(hw->wiphy, "Trying to TX when idle - reject\n");
fe0f3cd2 1407 ieee80211_free_txskb(hw, skb);
e8261171
JB		 1408 return;
1409 }
1410
1411 if (txi->control.vif)
1412 hwsim_check_magic(txi->control.vif);
1413 if (control->sta)
1414 hwsim_check_sta_magic(control->sta);
1415
30686bf7 1416 if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE))
1eb32179
KB		 1417 ieee80211_get_tx_rates(txi->control.vif, control->sta, skb,
1418 txi->control.rates,
1419 ARRAY_SIZE(txi->control.rates));
e8261171 1420
732b5395
JM		 1421 if (skb->len >= 24 + 8 &&
1422 ieee80211_is_probe_resp(hdr->frame_control)) {
1423 /* fake header transmission time */
1424 struct ieee80211_mgmt *mgmt;
1425 struct ieee80211_rate *txrate;
1426 u64 ts;
1427
1428 mgmt = (struct ieee80211_mgmt *)skb->data;
1429 txrate = ieee80211_get_tx_rate(hw, txi);
1430 ts = mac80211_hwsim_get_tsf_raw();
1431 mgmt->u.probe_resp.timestamp =
1432 cpu_to_le64(ts + data->tsf_offset +
1433 24 * 8 * 10 / txrate->bitrate);
1434 }
1435
e8261171
JB		 1436 mac80211_hwsim_monitor_rx(hw, skb, channel);
1437
7882513b 1438 /* wmediumd mode check */
6aa7de05 1439 _portid = READ_ONCE(data->wmediumd);
7882513b 1440
15e47304
EB		 1441 if (_portid)
1442 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
7882513b
JL		 1443
1444 /* NO wmediumd detected, perfect medium simulation */
2155c3f8
BG		 1445 data->tx_pkts++;
1446 data->tx_bytes += skb->len;
e8261171 1447 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
7882513b 1448
f06b7ab8 1449 if (ack && skb->len >= 16)
e8261171 1450 mac80211_hwsim_monitor_ack(channel, hdr->addr2);
e36cfdc9 1451
e6a9854b 1452 ieee80211_tx_info_clear_status(txi);
2a4ffa4c
JC		 1453
1454 /* frame was transmitted at most favorable rate at first attempt */
1455 txi->control.rates[0].count = 1;
1456 txi->control.rates[1].idx = -1;
1457
e6a9854b
JB		 1458 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
1459 txi->flags |= IEEE80211_TX_STAT_ACK;
acc1e7a3 1460 ieee80211_tx_status_irqsafe(hw, skb);
acc1e7a3
JM		 1461}
1462
1463
1464static int mac80211_hwsim_start(struct ieee80211_hw *hw)
1465{
1466 struct mac80211_hwsim_data *data = hw->priv;
62b093b3 1467 wiphy_dbg(hw->wiphy, "%s\n", __func__);
3db1cd5c 1468 data->started = true;
acc1e7a3
JM		 1469 return 0;
1470}
1471
1472
1473static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
1474{
1475 struct mac80211_hwsim_data *data = hw->priv;
3db1cd5c 1476 data->started = false;
01e59e46 1477 tasklet_hrtimer_cancel(&data->beacon_timer);
62b093b3 1478 wiphy_dbg(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 1479}
1480
1481
1482static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
1ed32e4f 1483 struct ieee80211_vif *vif)
acc1e7a3 1484{
62b093b3
LR		 1485 wiphy_dbg(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
1486 __func__, ieee80211_vif_type_p2p(vif),
1487 vif->addr);
1ed32e4f 1488 hwsim_set_magic(vif);
e8261171
JB		 1489
1490 vif->cab_queue = 0;
1491 vif->hw_queue[IEEE80211_AC_VO] = 0;
1492 vif->hw_queue[IEEE80211_AC_VI] = 1;
1493 vif->hw_queue[IEEE80211_AC_BE] = 2;
1494 vif->hw_queue[IEEE80211_AC_BK] = 3;
1495
acc1e7a3
JM		 1496 return 0;
1497}
1498
1499
c35d0270
JB		 1500static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
1501 struct ieee80211_vif *vif,
2ca27bcf
JB		 1502 enum nl80211_iftype newtype,
1503 bool newp2p)
c35d0270 1504{
2ca27bcf 1505 newtype = ieee80211_iftype_p2p(newtype, newp2p);
62b093b3
LR		 1506 wiphy_dbg(hw->wiphy,
1507 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
1508 __func__, ieee80211_vif_type_p2p(vif),
2ca27bcf 1509 newtype, vif->addr);
c35d0270
JB		 1510 hwsim_check_magic(vif);
1511
3eb92f6a
JB		 1512 /*
1513 * interface may change from non-AP to AP in
1514 * which case this needs to be set up again
1515 */
1516 vif->cab_queue = 0;
1517
c35d0270
JB		 1518 return 0;
1519}
1520
acc1e7a3 1521static void mac80211_hwsim_remove_interface(
1ed32e4f 1522 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
acc1e7a3 1523{
62b093b3
LR		 1524 wiphy_dbg(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
1525 __func__, ieee80211_vif_type_p2p(vif),
1526 vif->addr);
1ed32e4f
JB		 1527 hwsim_check_magic(vif);
1528 hwsim_clear_magic(vif);
acc1e7a3
JM		 1529}
1530
e8261171
JB		 1531static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
1532 struct sk_buff *skb,
1533 struct ieee80211_channel *chan)
1534{
f21e4d8e 1535 struct mac80211_hwsim_data *data = hw->priv;
6aa7de05 1536 u32 _pid = READ_ONCE(data->wmediumd);
e8261171 1537
30686bf7 1538 if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE)) {
1eb32179
KB		 1539 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1540 ieee80211_get_tx_rates(txi->control.vif, NULL, skb,
1541 txi->control.rates,
1542 ARRAY_SIZE(txi->control.rates));
1543 }
1544
e8261171
JB		 1545 mac80211_hwsim_monitor_rx(hw, skb, chan);
1546
1547 if (_pid)
1548 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
1549
1550 mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
1551 dev_kfree_skb(skb);
1552}
acc1e7a3
JM		 1553
1554static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
1555 struct ieee80211_vif *vif)
1556{
b66851c3
TP		 1557 struct mac80211_hwsim_data *data = arg;
1558 struct ieee80211_hw *hw = data->hw;
1559 struct ieee80211_tx_info *info;
1560 struct ieee80211_rate *txrate;
1561 struct ieee80211_mgmt *mgmt;
acc1e7a3 1562 struct sk_buff *skb;
acc1e7a3 1563
8aa21e6f
JB		 1564 hwsim_check_magic(vif);
1565
55b39619 1566 if (vif->type != NL80211_IFTYPE_AP &&
2b2d7795
JB		 1567 vif->type != NL80211_IFTYPE_MESH_POINT &&
1568 vif->type != NL80211_IFTYPE_ADHOC)
acc1e7a3
JM		 1569 return;
1570
1571 skb = ieee80211_beacon_get(hw, vif);
1572 if (skb == NULL)
1573 return;
b66851c3 1574 info = IEEE80211_SKB_CB(skb);
30686bf7 1575 if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE))
1eb32179
KB		 1576 ieee80211_get_tx_rates(vif, NULL, skb,
1577 info->control.rates,
1578 ARRAY_SIZE(info->control.rates));
1579
b66851c3
TP		 1580 txrate = ieee80211_get_tx_rate(hw, info);
1581
1582 mgmt = (struct ieee80211_mgmt *) skb->data;
1583 /* fake header transmission time */
1584 data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
1585 mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
1586 data->tsf_offset +
1587 24 * 8 * 10 / txrate->bitrate);
7882513b 1588
e8261171 1589 mac80211_hwsim_tx_frame(hw, skb,
4bf88530 1590 rcu_dereference(vif->chanctx_conf)->def.chan);
0037db63
AO		 1591
1592 if (vif->csa_active && ieee80211_csa_is_complete(vif))
1593 ieee80211_csa_finish(vif);
acc1e7a3
JM		 1594}
1595
01e59e46
TP		 1596static enum hrtimer_restart
1597mac80211_hwsim_beacon(struct hrtimer *timer)
acc1e7a3 1598{
01e59e46
TP		 1599 struct mac80211_hwsim_data *data =
1600 container_of(timer, struct mac80211_hwsim_data,
1601 beacon_timer.timer);
1602 struct ieee80211_hw *hw = data->hw;
1603 u64 bcn_int = data->beacon_int;
1604 ktime_t next_bcn;
acc1e7a3 1605
4c4c671a 1606 if (!data->started)
01e59e46 1607 goto out;
acc1e7a3 1608
f248f105 1609 ieee80211_iterate_active_interfaces_atomic(
8b2c9824 1610 hw, IEEE80211_IFACE_ITER_NORMAL,
b66851c3 1611 mac80211_hwsim_beacon_tx, data);
acc1e7a3 1612
c51f8783
TP		 1613 /* beacon at new TBTT + beacon interval */
1614 if (data->bcn_delta) {
1615 bcn_int -= data->bcn_delta;
1616 data->bcn_delta = 0;
1617 }
1618
01e59e46
TP		 1619 next_bcn = ktime_add(hrtimer_get_expires(timer),
1620 ns_to_ktime(bcn_int * 1000));
1621 tasklet_hrtimer_start(&data->beacon_timer, next_bcn, HRTIMER_MODE_ABS);
1622out:
1623 return HRTIMER_NORESTART;
acc1e7a3
JM		 1624}
1625
675a0b04
KB		 1626static const char * const hwsim_chanwidths[] = {
1627 [NL80211_CHAN_WIDTH_20_NOHT] = "noht",
1628 [NL80211_CHAN_WIDTH_20] = "ht20",
1629 [NL80211_CHAN_WIDTH_40] = "ht40",
1630 [NL80211_CHAN_WIDTH_80] = "vht80",
1631 [NL80211_CHAN_WIDTH_80P80] = "vht80p80",
1632 [NL80211_CHAN_WIDTH_160] = "vht160",
0aaffa9b 1633};
acc1e7a3 1634
e8975581 1635static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
acc1e7a3
JM		 1636{
1637 struct mac80211_hwsim_data *data = hw->priv;
e8975581 1638 struct ieee80211_conf *conf = &hw->conf;
0f78231b
JB		 1639 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
1640 [IEEE80211_SMPS_AUTOMATIC] = "auto",
1641 [IEEE80211_SMPS_OFF] = "off",
1642 [IEEE80211_SMPS_STATIC] = "static",
1643 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
1644 };
7f813ce1 1645 int idx;
0f78231b 1646
675a0b04 1647 if (conf->chandef.chan)
62b093b3
LR		 1648 wiphy_dbg(hw->wiphy,
1649 "%s (freq=%d(%d - %d)/%s idle=%d ps=%d smps=%s)\n",
1650 __func__,
1651 conf->chandef.chan->center_freq,
1652 conf->chandef.center_freq1,
1653 conf->chandef.center_freq2,
1654 hwsim_chanwidths[conf->chandef.width],
1655 !!(conf->flags & IEEE80211_CONF_IDLE),
1656 !!(conf->flags & IEEE80211_CONF_PS),
1657 smps_modes[conf->smps_mode]);
675a0b04 1658 else
62b093b3
LR		 1659 wiphy_dbg(hw->wiphy,
1660 "%s (freq=0 idle=%d ps=%d smps=%s)\n",
1661 __func__,
1662 !!(conf->flags & IEEE80211_CONF_IDLE),
1663 !!(conf->flags & IEEE80211_CONF_PS),
1664 smps_modes[conf->smps_mode]);
acc1e7a3 1665
70541839
JM		 1666 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1667
7f813ce1 1668 WARN_ON(conf->chandef.chan && data->use_chanctx);
e8261171 1669
7f813ce1
JB		 1670 mutex_lock(&data->mutex);
1671 if (data->scanning && conf->chandef.chan) {
1672 for (idx = 0; idx < ARRAY_SIZE(data->survey_data); idx++) {
1673 if (data->survey_data[idx].channel == data->channel) {
1674 data->survey_data[idx].start =
1675 data->survey_data[idx].next_start;
1676 data->survey_data[idx].end = jiffies;
1677 break;
1678 }
1679 }
1680
1681 data->channel = conf->chandef.chan;
e8261171 1682
7f813ce1
JB		 1683 for (idx = 0; idx < ARRAY_SIZE(data->survey_data); idx++) {
1684 if (data->survey_data[idx].channel &&
1685 data->survey_data[idx].channel != data->channel)
1686 continue;
1687 data->survey_data[idx].channel = data->channel;
1688 data->survey_data[idx].next_start = jiffies;
1689 break;
1690 }
1691 } else {
1692 data->channel = conf->chandef.chan;
1693 }
1694 mutex_unlock(&data->mutex);
e8261171 1695
4c4c671a 1696 if (!data->started || !data->beacon_int)
01e59e46
TP		 1697 tasklet_hrtimer_cancel(&data->beacon_timer);
1698 else if (!hrtimer_is_queued(&data->beacon_timer.timer)) {
c51f8783
TP		 1699 u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
1700 u32 bcn_int = data->beacon_int;
1701 u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1702
01e59e46 1703 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1704 ns_to_ktime(until_tbtt * 1000),
01e59e46
TP		 1705 HRTIMER_MODE_REL);
1706 }
acc1e7a3
JM		 1707
1708 return 0;
1709}
1710
1711
1712static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
1713 unsigned int changed_flags,
3ac64bee 1714 unsigned int *total_flags,u64 multicast)
acc1e7a3
JM		 1715{
1716 struct mac80211_hwsim_data *data = hw->priv;
1717
62b093b3 1718 wiphy_dbg(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 1719
1720 data->rx_filter = 0;
acc1e7a3
JM		 1721 if (*total_flags & FIF_ALLMULTI)
1722 data->rx_filter |= FIF_ALLMULTI;
1723
1724 *total_flags = data->rx_filter;
1725}
1726
0bb861e6
JM		 1727static void mac80211_hwsim_bcn_en_iter(void *data, u8 *mac,
1728 struct ieee80211_vif *vif)
1729{
1730 unsigned int *count = data;
1731 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1732
1733 if (vp->bcn_en)
1734 (*count)++;
1735}
1736
8aa21e6f
JB		 1737static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
1738 struct ieee80211_vif *vif,
1739 struct ieee80211_bss_conf *info,
1740 u32 changed)
1741{
fc6971d4 1742 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
57c4d7b4 1743 struct mac80211_hwsim_data *data = hw->priv;
fc6971d4 1744
8aa21e6f 1745 hwsim_check_magic(vif);
fe63bfa3 1746
62b093b3
LR		 1747 wiphy_dbg(hw->wiphy, "%s(changed=0x%x vif->addr=%pM)\n",
1748 __func__, changed, vif->addr);
fe63bfa3 1749
2d0ddec5 1750 if (changed & BSS_CHANGED_BSSID) {
62b093b3
LR		 1751 wiphy_dbg(hw->wiphy, "%s: BSSID changed: %pM\n",
1752 __func__, info->bssid);
2d0ddec5
JB		 1753 memcpy(vp->bssid, info->bssid, ETH_ALEN);
1754 }
1755
fe63bfa3 1756 if (changed & BSS_CHANGED_ASSOC) {
62b093b3
LR		 1757 wiphy_dbg(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
1758 info->assoc, info->aid);
fc6971d4
JM		 1759 vp->assoc = info->assoc;
1760 vp->aid = info->aid;
fe63bfa3
JM		 1761 }
1762
01e59e46 1763 if (changed & BSS_CHANGED_BEACON_ENABLED) {
62b093b3
LR		 1764 wiphy_dbg(hw->wiphy, " BCN EN: %d (BI=%u)\n",
1765 info->enable_beacon, info->beacon_int);
0bb861e6 1766 vp->bcn_en = info->enable_beacon;
01e59e46
TP		 1767 if (data->started &&
1768 !hrtimer_is_queued(&data->beacon_timer.timer) &&
1769 info->enable_beacon) {
c51f8783
TP		 1770 u64 tsf, until_tbtt;
1771 u32 bcn_int;
56067628 1772 data->beacon_int = info->beacon_int * 1024;
c51f8783
TP		 1773 tsf = mac80211_hwsim_get_tsf(hw, vif);
1774 bcn_int = data->beacon_int;
1775 until_tbtt = bcn_int - do_div(tsf, bcn_int);
01e59e46 1776 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1777 ns_to_ktime(until_tbtt * 1000),
01e59e46 1778 HRTIMER_MODE_REL);
0bb861e6
JM		 1779 } else if (!info->enable_beacon) {
1780 unsigned int count = 0;
cdb1b805 1781 ieee80211_iterate_active_interfaces_atomic(
0bb861e6
JM		 1782 data->hw, IEEE80211_IFACE_ITER_NORMAL,
1783 mac80211_hwsim_bcn_en_iter, &count);
62b093b3
LR		 1784 wiphy_dbg(hw->wiphy, " beaconing vifs remaining: %u",
1785 count);
56067628 1786 if (count == 0) {
0bb861e6 1787 tasklet_hrtimer_cancel(&data->beacon_timer);
56067628
JB		 1788 data->beacon_int = 0;
1789 }
0bb861e6 1790 }
57c4d7b4
JB		 1791 }
1792
fe63bfa3 1793 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
62b093b3
LR		 1794 wiphy_dbg(hw->wiphy, " ERP_CTS_PROT: %d\n",
1795 info->use_cts_prot);
fe63bfa3
JM		 1796 }
1797
1798 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
62b093b3
LR		 1799 wiphy_dbg(hw->wiphy, " ERP_PREAMBLE: %d\n",
1800 info->use_short_preamble);
fe63bfa3
JM		 1801 }
1802
1803 if (changed & BSS_CHANGED_ERP_SLOT) {
62b093b3 1804 wiphy_dbg(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
fe63bfa3
JM		 1805 }
1806
1807 if (changed & BSS_CHANGED_HT) {
62b093b3
LR		 1808 wiphy_dbg(hw->wiphy, " HT: op_mode=0x%x\n",
1809 info->ht_operation_mode);
fe63bfa3
JM		 1810 }
1811
1812 if (changed & BSS_CHANGED_BASIC_RATES) {
62b093b3
LR		 1813 wiphy_dbg(hw->wiphy, " BASIC_RATES: 0x%llx\n",
1814 (unsigned long long) info->basic_rates);
fe63bfa3 1815 }
cbc668a7
JB		 1816
1817 if (changed & BSS_CHANGED_TXPOWER)
62b093b3 1818 wiphy_dbg(hw->wiphy, " TX Power: %d dBm\n", info->txpower);
8aa21e6f
JB		 1819}
1820
1d669cbf
JB		 1821static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
1822 struct ieee80211_vif *vif,
1823 struct ieee80211_sta *sta)
1824{
1825 hwsim_check_magic(vif);
1826 hwsim_set_sta_magic(sta);
1827
1828 return 0;
1829}
1830
1831static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
1832 struct ieee80211_vif *vif,
1833 struct ieee80211_sta *sta)
1834{
1835 hwsim_check_magic(vif);
1836 hwsim_clear_sta_magic(sta);
1837
1838 return 0;
1839}
1840
8aa21e6f
JB		 1841static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
1842 struct ieee80211_vif *vif,
17741cdc
JB		 1843 enum sta_notify_cmd cmd,
1844 struct ieee80211_sta *sta)
8aa21e6f
JB		 1845{
1846 hwsim_check_magic(vif);
1d669cbf 1847
81c06523 1848 switch (cmd) {
89fad578
CL		 1849 case STA_NOTIFY_SLEEP:
1850 case STA_NOTIFY_AWAKE:
1851 /* TODO: make good use of these flags */
1852 break;
1d669cbf
JB		 1853 default:
1854 WARN(1, "Invalid sta notify: %d\n", cmd);
1855 break;
81c06523
JB		 1856 }
1857}
1858
1859static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
1860 struct ieee80211_sta *sta,
1861 bool set)
1862{
1863 hwsim_check_sta_magic(sta);
1864 return 0;
8aa21e6f 1865}
acc1e7a3 1866
1e898ff8 1867static int mac80211_hwsim_conf_tx(
8a3a3c85
EP		 1868 struct ieee80211_hw *hw,
1869 struct ieee80211_vif *vif, u16 queue,
1e898ff8
JM		 1870 const struct ieee80211_tx_queue_params *params)
1871{
62b093b3
LR		 1872 wiphy_dbg(hw->wiphy,
1873 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1874 __func__, queue,
1875 params->txop, params->cw_min,
1876 params->cw_max, params->aifs);
1e898ff8
JM		 1877 return 0;
1878}
1879
7f813ce1
JB		 1880static int mac80211_hwsim_get_survey(struct ieee80211_hw *hw, int idx,
1881 struct survey_info *survey)
1289723e 1882{
7f813ce1 1883 struct mac80211_hwsim_data *hwsim = hw->priv;
1289723e 1884
7f813ce1 1885 if (idx < 0 || idx >= ARRAY_SIZE(hwsim->survey_data))
1289723e
HS		 1886 return -ENOENT;
1887
7f813ce1
JB		 1888 mutex_lock(&hwsim->mutex);
1889 survey->channel = hwsim->survey_data[idx].channel;
1890 if (!survey->channel) {
1891 mutex_unlock(&hwsim->mutex);
1892 return -ENOENT;
1893 }
1289723e
HS		 1894
1895 /*
7f813ce1 1896 * Magically conjured dummy values --- this is only ok for simulated hardware.
1289723e 1897 *
7f813ce1
JB		 1898 * A real driver which cannot determine real values noise MUST NOT
1899 * report any, especially not a magically conjured ones :-)
1289723e 1900 */
7f813ce1
JB		 1901 survey->filled = SURVEY_INFO_NOISE_DBM |
1902 SURVEY_INFO_TIME |
1903 SURVEY_INFO_TIME_BUSY;
1289723e 1904 survey->noise = -92;
7f813ce1
JB		 1905 survey->time =
1906 jiffies_to_msecs(hwsim->survey_data[idx].end -
1907 hwsim->survey_data[idx].start);
1908 /* report 12.5% of channel time is used */
1909 survey->time_busy = survey->time/8;
1910 mutex_unlock(&hwsim->mutex);
1289723e
HS		 1911
1912 return 0;
1913}
1914
aff89a9b
JB		 1915#ifdef CONFIG_NL80211_TESTMODE
1916/*
1917 * This section contains example code for using netlink
1918 * attributes with the testmode command in nl80211.
1919 */
1920
1921/* These enums need to be kept in sync with userspace */
1922enum hwsim_testmode_attr {
1923 __HWSIM_TM_ATTR_INVALID = 0,
1924 HWSIM_TM_ATTR_CMD = 1,
1925 HWSIM_TM_ATTR_PS = 2,
1926
1927 /* keep last */
1928 __HWSIM_TM_ATTR_AFTER_LAST,
1929 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1930};
1931
1932enum hwsim_testmode_cmd {
1933 HWSIM_TM_CMD_SET_PS = 0,
1934 HWSIM_TM_CMD_GET_PS = 1,
4d6d0ae2
JB		 1935 HWSIM_TM_CMD_STOP_QUEUES = 2,
1936 HWSIM_TM_CMD_WAKE_QUEUES = 3,
aff89a9b
JB		 1937};
1938
1939static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1940 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1941 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1942};
1943
5bc38193 1944static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
52981cd7 1945 struct ieee80211_vif *vif,
5bc38193 1946 void *data, int len)
aff89a9b
JB		 1947{
1948 struct mac80211_hwsim_data *hwsim = hw->priv;
1949 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1950 struct sk_buff *skb;
1951 int err, ps;
1952
1953 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
fceb6435 1954 hwsim_testmode_policy, NULL);
aff89a9b
JB		 1955 if (err)
1956 return err;
1957
1958 if (!tb[HWSIM_TM_ATTR_CMD])
1959 return -EINVAL;
1960
1961 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1962 case HWSIM_TM_CMD_SET_PS:
1963 if (!tb[HWSIM_TM_ATTR_PS])
1964 return -EINVAL;
1965 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1966 return hwsim_fops_ps_write(hwsim, ps);
1967 case HWSIM_TM_CMD_GET_PS:
1968 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1969 nla_total_size(sizeof(u32)));
1970 if (!skb)
1971 return -ENOMEM;
633c9389
DM		 1972 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
1973 goto nla_put_failure;
aff89a9b 1974 return cfg80211_testmode_reply(skb);
4d6d0ae2
JB		 1975 case HWSIM_TM_CMD_STOP_QUEUES:
1976 ieee80211_stop_queues(hw);
1977 return 0;
1978 case HWSIM_TM_CMD_WAKE_QUEUES:
1979 ieee80211_wake_queues(hw);
1980 return 0;
aff89a9b
JB		 1981 default:
1982 return -EOPNOTSUPP;
1983 }
1984
1985 nla_put_failure:
1986 kfree_skb(skb);
1987 return -ENOBUFS;
1988}
1989#endif
1990
8b73d13a
JB		 1991static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1992 struct ieee80211_vif *vif,
50ea05ef 1993 struct ieee80211_ampdu_params *params)
8b73d13a 1994{
50ea05ef
SS		 1995 struct ieee80211_sta *sta = params->sta;
1996 enum ieee80211_ampdu_mlme_action action = params->action;
1997 u16 tid = params->tid;
1998
8b73d13a
JB		 1999 switch (action) {
2000 case IEEE80211_AMPDU_TX_START:
2001 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
2002 break;
18b559d5
JB		 2003 case IEEE80211_AMPDU_TX_STOP_CONT:
2004 case IEEE80211_AMPDU_TX_STOP_FLUSH:
2005 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
8b73d13a
JB		 2006 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
2007 break;
2008 case IEEE80211_AMPDU_TX_OPERATIONAL:
2009 break;
2010 case IEEE80211_AMPDU_RX_START:
2011 case IEEE80211_AMPDU_RX_STOP:
2012 break;
2013 default:
2014 return -EOPNOTSUPP;
2015 }
2016
2017 return 0;
2018}
2019
77be2c54
EG		 2020static void mac80211_hwsim_flush(struct ieee80211_hw *hw,
2021 struct ieee80211_vif *vif,
2022 u32 queues, bool drop)
a80f7c0b 2023{
7882513b 2024 /* Not implemented, queues only on kernel side */
a80f7c0b
JB		 2025}
2026
e8261171 2027static void hw_scan_work(struct work_struct *work)
69068036 2028{
e8261171
JB		 2029 struct mac80211_hwsim_data *hwsim =
2030 container_of(work, struct mac80211_hwsim_data, hw_scan.work);
2031 struct cfg80211_scan_request *req = hwsim->hw_scan_request;
2032 int dwell, i;
69068036 2033
e8261171
JB		 2034 mutex_lock(&hwsim->mutex);
2035 if (hwsim->scan_chan_idx >= req->n_channels) {
7947d3e0
AS		 2036 struct cfg80211_scan_info info = {
2037 .aborted = false,
2038 };
2039
62b093b3 2040 wiphy_dbg(hwsim->hw->wiphy, "hw scan complete\n");
7947d3e0 2041 ieee80211_scan_completed(hwsim->hw, &info);
e8261171
JB		 2042 hwsim->hw_scan_request = NULL;
2043 hwsim->hw_scan_vif = NULL;
2044 hwsim->tmp_chan = NULL;
2045 mutex_unlock(&hwsim->mutex);
2046 return;
2047 }
2048
62b093b3
LR		 2049 wiphy_dbg(hwsim->hw->wiphy, "hw scan %d MHz\n",
2050 req->channels[hwsim->scan_chan_idx]->center_freq);
e8261171
JB		 2051
2052 hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
a8e828de
JB		 2053 if (hwsim->tmp_chan->flags & (IEEE80211_CHAN_NO_IR |
2054 IEEE80211_CHAN_RADAR) ||
e8261171
JB		 2055 !req->n_ssids) {
2056 dwell = 120;
2057 } else {
2058 dwell = 30;
2059 /* send probes */
2060 for (i = 0; i < req->n_ssids; i++) {
2061 struct sk_buff *probe;
12880d16 2062 struct ieee80211_mgmt *mgmt;
e8261171
JB		 2063
2064 probe = ieee80211_probereq_get(hwsim->hw,
339467b9 2065 hwsim->scan_addr,
e8261171
JB		 2066 req->ssids[i].ssid,
2067 req->ssids[i].ssid_len,
b9a9ada1 2068 req->ie_len);
e8261171
JB		 2069 if (!probe)
2070 continue;
b9a9ada1 2071
12880d16
JM		 2072 mgmt = (struct ieee80211_mgmt *) probe->data;
2073 memcpy(mgmt->da, req->bssid, ETH_ALEN);
2074 memcpy(mgmt->bssid, req->bssid, ETH_ALEN);
2075
b9a9ada1 2076 if (req->ie_len)
59ae1d12 2077 skb_put_data(probe, req->ie, req->ie_len);
b9a9ada1 2078
e8261171
JB		 2079 local_bh_disable();
2080 mac80211_hwsim_tx_frame(hwsim->hw, probe,
2081 hwsim->tmp_chan);
2082 local_bh_enable();
2083 }
2084 }
2085 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
2086 msecs_to_jiffies(dwell));
7f813ce1
JB		 2087 hwsim->survey_data[hwsim->scan_chan_idx].channel = hwsim->tmp_chan;
2088 hwsim->survey_data[hwsim->scan_chan_idx].start = jiffies;
2089 hwsim->survey_data[hwsim->scan_chan_idx].end =
2090 jiffies + msecs_to_jiffies(dwell);
e8261171
JB		 2091 hwsim->scan_chan_idx++;
2092 mutex_unlock(&hwsim->mutex);
69068036
JB		 2093}
2094
2095static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
a060bbfe 2096 struct ieee80211_vif *vif,
c56ef672 2097 struct ieee80211_scan_request *hw_req)
69068036 2098{
e8261171 2099 struct mac80211_hwsim_data *hwsim = hw->priv;
c56ef672 2100 struct cfg80211_scan_request *req = &hw_req->req;
69068036 2101
e8261171
JB		 2102 mutex_lock(&hwsim->mutex);
2103 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
2104 mutex_unlock(&hwsim->mutex);
2105 return -EBUSY;
2106 }
2107 hwsim->hw_scan_request = req;
2108 hwsim->hw_scan_vif = vif;
2109 hwsim->scan_chan_idx = 0;
339467b9
JB		 2110 if (req->flags & NL80211_SCAN_FLAG_RANDOM_ADDR)
2111 get_random_mask_addr(hwsim->scan_addr,
2112 hw_req->req.mac_addr,
2113 hw_req->req.mac_addr_mask);
2114 else
2115 memcpy(hwsim->scan_addr, vif->addr, ETH_ALEN);
7f813ce1 2116 memset(hwsim->survey_data, 0, sizeof(hwsim->survey_data));
e8261171 2117 mutex_unlock(&hwsim->mutex);
69068036 2118
62b093b3 2119 wiphy_dbg(hw->wiphy, "hwsim hw_scan request\n");
69068036 2120
e8261171 2121 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
69068036
JB		 2122
2123 return 0;
2124}
2125
e8261171
JB		 2126static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
2127 struct ieee80211_vif *vif)
2128{
2129 struct mac80211_hwsim_data *hwsim = hw->priv;
7947d3e0
AS		 2130 struct cfg80211_scan_info info = {
2131 .aborted = true,
2132 };
e8261171 2133
62b093b3 2134 wiphy_dbg(hw->wiphy, "hwsim cancel_hw_scan\n");
e8261171
JB		 2135
2136 cancel_delayed_work_sync(&hwsim->hw_scan);
2137
2138 mutex_lock(&hwsim->mutex);
7947d3e0 2139 ieee80211_scan_completed(hwsim->hw, &info);
e8261171
JB		 2140 hwsim->tmp_chan = NULL;
2141 hwsim->hw_scan_request = NULL;
2142 hwsim->hw_scan_vif = NULL;
2143 mutex_unlock(&hwsim->mutex);
2144}
2145
a344d677
JB		 2146static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw,
2147 struct ieee80211_vif *vif,
2148 const u8 *mac_addr)
f74cb0f7
LR		 2149{
2150 struct mac80211_hwsim_data *hwsim = hw->priv;
2151
2152 mutex_lock(&hwsim->mutex);
2153
2154 if (hwsim->scanning) {
62b093b3 2155 pr_debug("two hwsim sw_scans detected!\n");
f74cb0f7
LR		 2156 goto out;
2157 }
2158
62b093b3 2159 pr_debug("hwsim sw_scan request, prepping stuff\n");
339467b9
JB		 2160
2161 memcpy(hwsim->scan_addr, mac_addr, ETH_ALEN);
f74cb0f7 2162 hwsim->scanning = true;
7f813ce1 2163 memset(hwsim->survey_data, 0, sizeof(hwsim->survey_data));
f74cb0f7
LR		 2164
2165out:
2166 mutex_unlock(&hwsim->mutex);
2167}
2168
a344d677
JB		 2169static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw,
2170 struct ieee80211_vif *vif)
f74cb0f7
LR		 2171{
2172 struct mac80211_hwsim_data *hwsim = hw->priv;
2173
2174 mutex_lock(&hwsim->mutex);
2175
62b093b3 2176 pr_debug("hwsim sw_scan_complete\n");
23ff98fc 2177 hwsim->scanning = false;
93803b33 2178 eth_zero_addr(hwsim->scan_addr);
f74cb0f7
LR		 2179
2180 mutex_unlock(&hwsim->mutex);
2181}
2182
661ef475
JB		 2183static void hw_roc_start(struct work_struct *work)
2184{
2185 struct mac80211_hwsim_data *hwsim =
2186 container_of(work, struct mac80211_hwsim_data, roc_start.work);
2187
2188 mutex_lock(&hwsim->mutex);
2189
62b093b3 2190 wiphy_dbg(hwsim->hw->wiphy, "hwsim ROC begins\n");
661ef475
JB		 2191 hwsim->tmp_chan = hwsim->roc_chan;
2192 ieee80211_ready_on_channel(hwsim->hw);
2193
2194 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->roc_done,
2195 msecs_to_jiffies(hwsim->roc_duration));
2196
2197 mutex_unlock(&hwsim->mutex);
2198}
2199
e8261171
JB		 2200static void hw_roc_done(struct work_struct *work)
2201{
2202 struct mac80211_hwsim_data *hwsim =
2203 container_of(work, struct mac80211_hwsim_data, roc_done.work);
2204
2205 mutex_lock(&hwsim->mutex);
2206 ieee80211_remain_on_channel_expired(hwsim->hw);
2207 hwsim->tmp_chan = NULL;
2208 mutex_unlock(&hwsim->mutex);
2209
62b093b3 2210 wiphy_dbg(hwsim->hw->wiphy, "hwsim ROC expired\n");
e8261171
JB		 2211}
2212
2213static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
49884568 2214 struct ieee80211_vif *vif,
e8261171 2215 struct ieee80211_channel *chan,
d339d5ca
IP		 2216 int duration,
2217 enum ieee80211_roc_type type)
e8261171
JB		 2218{
2219 struct mac80211_hwsim_data *hwsim = hw->priv;
2220
2221 mutex_lock(&hwsim->mutex);
2222 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
2223 mutex_unlock(&hwsim->mutex);
2224 return -EBUSY;
2225 }
2226
661ef475
JB		 2227 hwsim->roc_chan = chan;
2228 hwsim->roc_duration = duration;
e8261171
JB		 2229 mutex_unlock(&hwsim->mutex);
2230
62b093b3
LR		 2231 wiphy_dbg(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
2232 chan->center_freq, duration);
661ef475 2233 ieee80211_queue_delayed_work(hw, &hwsim->roc_start, HZ/50);
e8261171 2234
e8261171
JB		 2235 return 0;
2236}
2237
2238static int mac80211_hwsim_croc(struct ieee80211_hw *hw)
2239{
2240 struct mac80211_hwsim_data *hwsim = hw->priv;
2241
661ef475 2242 cancel_delayed_work_sync(&hwsim->roc_start);
e8261171
JB		 2243 cancel_delayed_work_sync(&hwsim->roc_done);
2244
2245 mutex_lock(&hwsim->mutex);
2246 hwsim->tmp_chan = NULL;
2247 mutex_unlock(&hwsim->mutex);
2248
62b093b3 2249 wiphy_dbg(hw->wiphy, "hwsim ROC canceled\n");
e8261171
JB		 2250
2251 return 0;
2252}
2253
2254static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
2255 struct ieee80211_chanctx_conf *ctx)
2256{
2257 hwsim_set_chanctx_magic(ctx);
62b093b3
LR		 2258 wiphy_dbg(hw->wiphy,
2259 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2260 ctx->def.chan->center_freq, ctx->def.width,
2261 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 2262 return 0;
2263}
2264
2265static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
2266 struct ieee80211_chanctx_conf *ctx)
2267{
62b093b3
LR		 2268 wiphy_dbg(hw->wiphy,
2269 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2270 ctx->def.chan->center_freq, ctx->def.width,
2271 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 2272 hwsim_check_chanctx_magic(ctx);
2273 hwsim_clear_chanctx_magic(ctx);
2274}
2275
2276static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
2277 struct ieee80211_chanctx_conf *ctx,
2278 u32 changed)
2279{
2280 hwsim_check_chanctx_magic(ctx);
62b093b3
LR		 2281 wiphy_dbg(hw->wiphy,
2282 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2283 ctx->def.chan->center_freq, ctx->def.width,
2284 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 2285}
2286
2287static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
2288 struct ieee80211_vif *vif,
2289 struct ieee80211_chanctx_conf *ctx)
2290{
2291 hwsim_check_magic(vif);
2292 hwsim_check_chanctx_magic(ctx);
2293
2294 return 0;
2295}
2296
2297static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
2298 struct ieee80211_vif *vif,
2299 struct ieee80211_chanctx_conf *ctx)
2300{
2301 hwsim_check_magic(vif);
2302 hwsim_check_chanctx_magic(ctx);
2303}
2304
2155c3f8
BG		 2305static const char mac80211_hwsim_gstrings_stats[][ETH_GSTRING_LEN] = {
2306 "tx_pkts_nic",
2307 "tx_bytes_nic",
2308 "rx_pkts_nic",
2309 "rx_bytes_nic",
2310 "d_tx_dropped",
2311 "d_tx_failed",
2312 "d_ps_mode",
2313 "d_group",
2155c3f8
BG		 2314};
2315
2316#define MAC80211_HWSIM_SSTATS_LEN ARRAY_SIZE(mac80211_hwsim_gstrings_stats)
2317
2318static void mac80211_hwsim_get_et_strings(struct ieee80211_hw *hw,
2319 struct ieee80211_vif *vif,
2320 u32 sset, u8 *data)
2321{
2322 if (sset == ETH_SS_STATS)
2323 memcpy(data, *mac80211_hwsim_gstrings_stats,
2324 sizeof(mac80211_hwsim_gstrings_stats));
2325}
2326
2327static int mac80211_hwsim_get_et_sset_count(struct ieee80211_hw *hw,
2328 struct ieee80211_vif *vif, int sset)
2329{
2330 if (sset == ETH_SS_STATS)
2331 return MAC80211_HWSIM_SSTATS_LEN;
2332 return 0;
2333}
2334
2335static void mac80211_hwsim_get_et_stats(struct ieee80211_hw *hw,
2336 struct ieee80211_vif *vif,
2337 struct ethtool_stats *stats, u64 *data)
2338{
2339 struct mac80211_hwsim_data *ar = hw->priv;
2340 int i = 0;
2341
2342 data[i++] = ar->tx_pkts;
2343 data[i++] = ar->tx_bytes;
2344 data[i++] = ar->rx_pkts;
2345 data[i++] = ar->rx_bytes;
2346 data[i++] = ar->tx_dropped;
2347 data[i++] = ar->tx_failed;
2348 data[i++] = ar->ps;
2349 data[i++] = ar->group;
2155c3f8
BG		 2350
2351 WARN_ON(i != MAC80211_HWSIM_SSTATS_LEN);
2352}
2353
246ad56e
JB		 2354#define HWSIM_COMMON_OPS \
2355 .tx = mac80211_hwsim_tx, \
2356 .start = mac80211_hwsim_start, \
2357 .stop = mac80211_hwsim_stop, \
2358 .add_interface = mac80211_hwsim_add_interface, \
2359 .change_interface = mac80211_hwsim_change_interface, \
2360 .remove_interface = mac80211_hwsim_remove_interface, \
2361 .config = mac80211_hwsim_config, \
2362 .configure_filter = mac80211_hwsim_configure_filter, \
2363 .bss_info_changed = mac80211_hwsim_bss_info_changed, \
2364 .sta_add = mac80211_hwsim_sta_add, \
2365 .sta_remove = mac80211_hwsim_sta_remove, \
2366 .sta_notify = mac80211_hwsim_sta_notify, \
2367 .set_tim = mac80211_hwsim_set_tim, \
2368 .conf_tx = mac80211_hwsim_conf_tx, \
2369 .get_survey = mac80211_hwsim_get_survey, \
2370 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd) \
2371 .ampdu_action = mac80211_hwsim_ampdu_action, \
2372 .flush = mac80211_hwsim_flush, \
2373 .get_tsf = mac80211_hwsim_get_tsf, \
2374 .set_tsf = mac80211_hwsim_set_tsf, \
2375 .get_et_sset_count = mac80211_hwsim_get_et_sset_count, \
2376 .get_et_stats = mac80211_hwsim_get_et_stats, \
2377 .get_et_strings = mac80211_hwsim_get_et_strings,
2378
38ed5048 2379static const struct ieee80211_ops mac80211_hwsim_ops = {
246ad56e 2380 HWSIM_COMMON_OPS
f74cb0f7
LR		 2381 .sw_scan_start = mac80211_hwsim_sw_scan,
2382 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
acc1e7a3
JM		 2383};
2384
246ad56e
JB		 2385static const struct ieee80211_ops mac80211_hwsim_mchan_ops = {
2386 HWSIM_COMMON_OPS
2387 .hw_scan = mac80211_hwsim_hw_scan,
2388 .cancel_hw_scan = mac80211_hwsim_cancel_hw_scan,
2389 .sw_scan_start = NULL,
2390 .sw_scan_complete = NULL,
2391 .remain_on_channel = mac80211_hwsim_roc,
2392 .cancel_remain_on_channel = mac80211_hwsim_croc,
2393 .add_chanctx = mac80211_hwsim_add_chanctx,
2394 .remove_chanctx = mac80211_hwsim_remove_chanctx,
2395 .change_chanctx = mac80211_hwsim_change_chanctx,
2396 .assign_vif_chanctx = mac80211_hwsim_assign_vif_chanctx,
2397 .unassign_vif_chanctx = mac80211_hwsim_unassign_vif_chanctx,
2398};
acc1e7a3 2399
62759361
JR		 2400struct hwsim_new_radio_params {
2401 unsigned int channels;
2402 const char *reg_alpha2;
2403 const struct ieee80211_regdomain *regd;
2404 bool reg_strict;
2405 bool p2p_device;
2406 bool use_chanctx;
2407 bool destroy_on_close;
2408 const char *hwname;
2409 bool no_vif;
2410};
2411
2412static void hwsim_mcast_config_msg(struct sk_buff *mcast_skb,
2413 struct genl_info *info)
2414{
2415 if (info)
92c14d9b
JB		 2416 genl_notify(&hwsim_genl_family, mcast_skb, info,
2417 HWSIM_MCGRP_CONFIG, GFP_KERNEL);
62759361
JR		 2418 else
2419 genlmsg_multicast(&hwsim_genl_family, mcast_skb, 0,
2420 HWSIM_MCGRP_CONFIG, GFP_KERNEL);
2421}
2422
c449981c
PF		 2423static int append_radio_msg(struct sk_buff *skb, int id,
2424 struct hwsim_new_radio_params *param)
62759361 2425{
62759361
JR		 2426 int ret;
2427
62759361
JR		 2428 ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
2429 if (ret < 0)
c449981c 2430 return ret;
62759361
JR		 2431
2432 if (param->channels) {
2433 ret = nla_put_u32(skb, HWSIM_ATTR_CHANNELS, param->channels);
2434 if (ret < 0)
c449981c 2435 return ret;
62759361
JR		 2436 }
2437
2438 if (param->reg_alpha2) {
2439 ret = nla_put(skb, HWSIM_ATTR_REG_HINT_ALPHA2, 2,
2440 param->reg_alpha2);
2441 if (ret < 0)
c449981c 2442 return ret;
62759361
JR		 2443 }
2444
2445 if (param->regd) {
2446 int i;
2447
5875755c
JB		 2448 for (i = 0; i < ARRAY_SIZE(hwsim_world_regdom_custom); i++) {
2449 if (hwsim_world_regdom_custom[i] != param->regd)
2450 continue;
62759361 2451
62759361
JR		 2452 ret = nla_put_u32(skb, HWSIM_ATTR_REG_CUSTOM_REG, i);
2453 if (ret < 0)
c449981c 2454 return ret;
5875755c 2455 break;
62759361
JR		 2456 }
2457 }
2458
2459 if (param->reg_strict) {
2460 ret = nla_put_flag(skb, HWSIM_ATTR_REG_STRICT_REG);
2461 if (ret < 0)
c449981c 2462 return ret;
62759361
JR		 2463 }
2464
2465 if (param->p2p_device) {
2466 ret = nla_put_flag(skb, HWSIM_ATTR_SUPPORT_P2P_DEVICE);
2467 if (ret < 0)
c449981c 2468 return ret;
62759361
JR		 2469 }
2470
2471 if (param->use_chanctx) {
2472 ret = nla_put_flag(skb, HWSIM_ATTR_USE_CHANCTX);
2473 if (ret < 0)
c449981c 2474 return ret;
62759361
JR		 2475 }
2476
2477 if (param->hwname) {
2478 ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME,
2479 strlen(param->hwname), param->hwname);
2480 if (ret < 0)
c449981c 2481 return ret;
62759361
JR		 2482 }
2483
c449981c 2484 return 0;
62759361
JR		 2485}
2486
c449981c 2487static void hwsim_mcast_new_radio(int id, struct genl_info *info,
62759361
JR		 2488 struct hwsim_new_radio_params *param)
2489{
2490 struct sk_buff *mcast_skb;
c449981c 2491 void *data;
62759361 2492
c449981c 2493 mcast_skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
62759361
JR		 2494 if (!mcast_skb)
2495 return;
2496
c449981c
PF		 2497 data = genlmsg_put(mcast_skb, 0, 0, &hwsim_genl_family, 0,
2498 HWSIM_CMD_NEW_RADIO);
2499 if (!data)
2500 goto out_err;
2501
2502 if (append_radio_msg(mcast_skb, id, param) < 0)
2503 goto out_err;
2504
2505 genlmsg_end(mcast_skb, data);
2506
62759361 2507 hwsim_mcast_config_msg(mcast_skb, info);
c449981c
PF		 2508 return;
2509
2510out_err:
2511 genlmsg_cancel(mcast_skb, data);
2512 nlmsg_free(mcast_skb);
62759361
JR		 2513}
2514
2515static int mac80211_hwsim_new_radio(struct genl_info *info,
2516 struct hwsim_new_radio_params *param)
acc1e7a3 2517{
de0421d5
JB		 2518 int err;
2519 u8 addr[ETH_ALEN];
e4afb603 2520 struct mac80211_hwsim_data *data;
de0421d5 2521 struct ieee80211_hw *hw;
57fbcce3 2522 enum nl80211_band band;
de0421d5 2523 const struct ieee80211_ops *ops = &mac80211_hwsim_ops;
100cb9ff 2524 struct net *net;
de0421d5 2525 int idx;
0e057d73 2526
62759361 2527 if (WARN_ON(param->channels > 1 && !param->use_chanctx))
361c3e04
LC		 2528 return -EINVAL;
2529
0e057d73 2530 spin_lock_bh(&hwsim_radio_lock);
de0421d5 2531 idx = hwsim_radio_idx++;
0e057d73
JB		 2532 spin_unlock_bh(&hwsim_radio_lock);
2533
62759361 2534 if (param->use_chanctx)
de0421d5 2535 ops = &mac80211_hwsim_mchan_ops;
62759361 2536 hw = ieee80211_alloc_hw_nm(sizeof(*data), ops, param->hwname);
de0421d5 2537 if (!hw) {
62b093b3 2538 pr_debug("mac80211_hwsim: ieee80211_alloc_hw failed\n");
de0421d5
JB		 2539 err = -ENOMEM;
2540 goto failed;
2541 }
100cb9ff 2542
f7d3b4f5
AZ		 2543 /* ieee80211_alloc_hw_nm may have used a default name */
2544 param->hwname = wiphy_name(hw->wiphy);
2545
100cb9ff
MW		 2546 if (info)
2547 net = genl_info_net(info);
2548 else
2549 net = &init_net;
2550 wiphy_net_set(hw->wiphy, net);
2551
de0421d5
JB		 2552 data = hw->priv;
2553 data->hw = hw;
acc1e7a3 2554
de0421d5
JB		 2555 data->dev = device_create(hwsim_class, NULL, 0, hw, "hwsim%d", idx);
2556 if (IS_ERR(data->dev)) {
2557 printk(KERN_DEBUG
2558 "mac80211_hwsim: device_create failed (%ld)\n",
2559 PTR_ERR(data->dev));
2560 err = -ENOMEM;
2561 goto failed_drvdata;
2562 }
2563 data->dev->driver = &mac80211_hwsim_driver.driver;
2564 err = device_bind_driver(data->dev);
2565 if (err != 0) {
62b093b3 2566 pr_debug("mac80211_hwsim: device_bind_driver failed (%d)\n",
de0421d5 2567 err);
805dbe17 2568 goto failed_bind;
acc1e7a3 2569 }
acc1e7a3 2570
de0421d5 2571 skb_queue_head_init(&data->pending);
acc1e7a3 2572
de0421d5 2573 SET_IEEE80211_DEV(hw, data->dev);
93803b33 2574 eth_zero_addr(addr);
de0421d5
JB		 2575 addr[0] = 0x02;
2576 addr[3] = idx >> 8;
2577 addr[4] = idx;
2578 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
2579 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
2580 data->addresses[1].addr[0] |= 0x40;
2581 hw->wiphy->n_addresses = 2;
2582 hw->wiphy->addresses = data->addresses;
fc6971d4 2583
62759361
JR		 2584 data->channels = param->channels;
2585 data->use_chanctx = param->use_chanctx;
bc791098 2586 data->idx = idx;
62759361
JR		 2587 data->destroy_on_close = param->destroy_on_close;
2588 if (info)
2589 data->portid = info->snd_portid;
fc6971d4 2590
361c3e04 2591 if (data->use_chanctx) {
de0421d5
JB		 2592 hw->wiphy->max_scan_ssids = 255;
2593 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
2594 hw->wiphy->max_remain_on_channel_duration = 1000;
de0421d5 2595 hw->wiphy->iface_combinations = &data->if_combination;
62759361 2596 if (param->p2p_device)
8c66a3d9
JB		 2597 data->if_combination = hwsim_if_comb_p2p_dev[0];
2598 else
2599 data->if_combination = hwsim_if_comb[0];
f7736f50
IP		 2600 hw->wiphy->n_iface_combinations = 1;
2601 /* For channels > 1 DFS is not allowed */
2602 data->if_combination.radar_detect_widths = 0;
b59ec8dd 2603 data->if_combination.num_different_channels = data->channels;
62759361 2604 } else if (param->p2p_device) {
8c66a3d9
JB		 2605 hw->wiphy->iface_combinations = hwsim_if_comb_p2p_dev;
2606 hw->wiphy->n_iface_combinations =
2607 ARRAY_SIZE(hwsim_if_comb_p2p_dev);
de0421d5
JB		 2608 } else {
2609 hw->wiphy->iface_combinations = hwsim_if_comb;
2610 hw->wiphy->n_iface_combinations = ARRAY_SIZE(hwsim_if_comb);
2611 }
acc1e7a3 2612
661ef475 2613 INIT_DELAYED_WORK(&data->roc_start, hw_roc_start);
de0421d5
JB		 2614 INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
2615 INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
7882513b 2616
de0421d5
JB		 2617 hw->queues = 5;
2618 hw->offchannel_tx_hw_queue = 4;
2619 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2620 BIT(NL80211_IFTYPE_AP) |
2621 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2622 BIT(NL80211_IFTYPE_P2P_GO) |
2623 BIT(NL80211_IFTYPE_ADHOC) |
8c66a3d9
JB		 2624 BIT(NL80211_IFTYPE_MESH_POINT);
2625
62759361 2626 if (param->p2p_device)
8c66a3d9 2627 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_DEVICE);
fc6971d4 2628
30686bf7
JB		 2629 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
2630 ieee80211_hw_set(hw, CHANCTX_STA_CSA);
2631 ieee80211_hw_set(hw, SUPPORTS_HT_CCK_RATES);
2632 ieee80211_hw_set(hw, QUEUE_CONTROL);
2633 ieee80211_hw_set(hw, WANT_MONITOR_VIF);
2634 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
2635 ieee80211_hw_set(hw, MFP_CAPABLE);
2636 ieee80211_hw_set(hw, SIGNAL_DBM);
33c2f538 2637 ieee80211_hw_set(hw, TDLS_WIDER_BW);
de0421d5 2638 if (rctbl)
30686bf7 2639 ieee80211_hw_set(hw, SUPPORTS_RC_TABLE);
fc6971d4 2640
de0421d5
JB		 2641 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2642 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
0037db63
AO		 2643 WIPHY_FLAG_AP_UAPSD |
2644 WIPHY_FLAG_HAS_CHANNEL_SWITCH;
0d8614b4
EP		 2645 hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR |
2646 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
2647 NL80211_FEATURE_STATIC_SMPS |
339467b9
JB		 2648 NL80211_FEATURE_DYNAMIC_SMPS |
2649 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
00eeccc4 2650 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS);
fc6971d4 2651
de0421d5
JB		 2652 /* ask mac80211 to reserve space for magic */
2653 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
2654 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
2655 hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
fc6971d4 2656
de0421d5
JB		 2657 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
2658 sizeof(hwsim_channels_2ghz));
2659 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
2660 sizeof(hwsim_channels_5ghz));
2661 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
7882513b 2662
57fbcce3 2663 for (band = NL80211_BAND_2GHZ; band < NUM_NL80211_BANDS; band++) {
de0421d5
JB		 2664 struct ieee80211_supported_band *sband = &data->bands[band];
2665 switch (band) {
57fbcce3 2666 case NL80211_BAND_2GHZ:
de0421d5
JB		 2667 sband->channels = data->channels_2ghz;
2668 sband->n_channels = ARRAY_SIZE(hwsim_channels_2ghz);
2669 sband->bitrates = data->rates;
2670 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
2671 break;
57fbcce3 2672 case NL80211_BAND_5GHZ:
de0421d5
JB		 2673 sband->channels = data->channels_5ghz;
2674 sband->n_channels = ARRAY_SIZE(hwsim_channels_5ghz);
2675 sband->bitrates = data->rates + 4;
2676 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
f33f8483
IP		 2677
2678 sband->vht_cap.vht_supported = true;
2679 sband->vht_cap.cap =
2680 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
2681 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
2682 IEEE80211_VHT_CAP_RXLDPC |
2683 IEEE80211_VHT_CAP_SHORT_GI_80 |
2684 IEEE80211_VHT_CAP_SHORT_GI_160 |
2685 IEEE80211_VHT_CAP_TXSTBC |
2686 IEEE80211_VHT_CAP_RXSTBC_1 |
2687 IEEE80211_VHT_CAP_RXSTBC_2 |
2688 IEEE80211_VHT_CAP_RXSTBC_3 |
2689 IEEE80211_VHT_CAP_RXSTBC_4 |
2690 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
2691 sband->vht_cap.vht_mcs.rx_mcs_map =
8aca9b29
IP		 2692 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
2693 IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 |
f33f8483 2694 IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
8aca9b29
IP		 2695 IEEE80211_VHT_MCS_SUPPORT_0_9 << 6 |
2696 IEEE80211_VHT_MCS_SUPPORT_0_9 << 8 |
f33f8483
IP		 2697 IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
2698 IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
8aca9b29 2699 IEEE80211_VHT_MCS_SUPPORT_0_9 << 14);
f33f8483
IP		 2700 sband->vht_cap.vht_mcs.tx_mcs_map =
2701 sband->vht_cap.vht_mcs.rx_mcs_map;
de0421d5
JB		 2702 break;
2703 default:
2704 continue;
2705 }
acc1e7a3 2706
de0421d5
JB		 2707 sband->ht_cap.ht_supported = true;
2708 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
2709 IEEE80211_HT_CAP_GRN_FLD |
e49786db 2710 IEEE80211_HT_CAP_SGI_20 |
de0421d5
JB		 2711 IEEE80211_HT_CAP_SGI_40 |
2712 IEEE80211_HT_CAP_DSSSCCK40;
2713 sband->ht_cap.ampdu_factor = 0x3;
2714 sband->ht_cap.ampdu_density = 0x6;
2715 memset(&sband->ht_cap.mcs, 0,
2716 sizeof(sband->ht_cap.mcs));
2717 sband->ht_cap.mcs.rx_mask[0] = 0xff;
2718 sband->ht_cap.mcs.rx_mask[1] = 0xff;
2719 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
fc6971d4 2720
de0421d5 2721 hw->wiphy->bands[band] = sband;
de0421d5 2722 }
acc1e7a3 2723
de0421d5
JB		 2724 /* By default all radios belong to the first group */
2725 data->group = 1;
2726 mutex_init(&data->mutex);
fc6971d4 2727
100cb9ff
MW		 2728 data->netgroup = hwsim_net_get_netgroup(net);
2729
de0421d5
JB		 2730 /* Enable frame retransmissions for lossy channels */
2731 hw->max_rates = 4;
2732 hw->max_rate_tries = 11;
fc6971d4 2733
d5d011b4
JM		 2734 hw->wiphy->vendor_commands = mac80211_hwsim_vendor_commands;
2735 hw->wiphy->n_vendor_commands =
2736 ARRAY_SIZE(mac80211_hwsim_vendor_commands);
2737 hw->wiphy->vendor_events = mac80211_hwsim_vendor_events;
2738 hw->wiphy->n_vendor_events = ARRAY_SIZE(mac80211_hwsim_vendor_events);
2739
62759361 2740 if (param->reg_strict)
26b0e411 2741 hw->wiphy->regulatory_flags |= REGULATORY_STRICT_REG;
62759361 2742 if (param->regd) {
93d638d4 2743 data->regd = param->regd;
26b0e411 2744 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
62759361 2745 wiphy_apply_custom_regulatory(hw->wiphy, param->regd);
26b0e411
JB		 2746 /* give the regulatory workqueue a chance to run */
2747 schedule_timeout_interruptible(1);
2748 }
fc6971d4 2749
62759361 2750 if (param->no_vif)
30686bf7 2751 ieee80211_hw_set(hw, NO_AUTO_VIF);
9a0cb89a 2752
ae44b502
AZ		 2753 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);
2754
de0421d5
JB		 2755 err = ieee80211_register_hw(hw);
2756 if (err < 0) {
62b093b3 2757 pr_debug("mac80211_hwsim: ieee80211_register_hw failed (%d)\n",
de0421d5
JB		 2758 err);
2759 goto failed_hw;
2760 }
fc6971d4 2761
62b093b3 2762 wiphy_dbg(hw->wiphy, "hwaddr %pM registered\n", hw->wiphy->perm_addr);
fc6971d4 2763
93d638d4
PF		 2764 if (param->reg_alpha2) {
2765 data->alpha2[0] = param->reg_alpha2[0];
2766 data->alpha2[1] = param->reg_alpha2[1];
62759361 2767 regulatory_hint(hw->wiphy, param->reg_alpha2);
93d638d4 2768 }
7882513b 2769
de0421d5
JB		 2770 data->debugfs = debugfs_create_dir("hwsim", hw->wiphy->debugfsdir);
2771 debugfs_create_file("ps", 0666, data->debugfs, data, &hwsim_fops_ps);
2772 debugfs_create_file("group", 0666, data->debugfs, data,
2773 &hwsim_fops_group);
361c3e04 2774 if (!data->use_chanctx)
de0421d5
JB		 2775 debugfs_create_file("dfs_simulate_radar", 0222,
2776 data->debugfs,
2777 data, &hwsim_simulate_radar);
fc6971d4 2778
de0421d5
JB		 2779 tasklet_hrtimer_init(&data->beacon_timer,
2780 mac80211_hwsim_beacon,
8fbcfeb8 2781 CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
fc6971d4 2782
de0421d5 2783 spin_lock_bh(&hwsim_radio_lock);
c6509cc3
BB		 2784 err = rhashtable_insert_fast(&hwsim_radios_rht, &data->rht,
2785 hwsim_rht_params);
2786 if (err < 0) {
2787 pr_debug("mac80211_hwsim: radio index %d already present\n",
2788 idx);
2789 spin_unlock_bh(&hwsim_radio_lock);
2790 goto failed_final_insert;
2791 }
2792
de0421d5
JB		 2793 list_add_tail(&data->list, &hwsim_radios);
2794 spin_unlock_bh(&hwsim_radio_lock);
fc6971d4 2795
62759361 2796 if (idx > 0)
c449981c 2797 hwsim_mcast_new_radio(idx, info, param);
62759361 2798
bc791098 2799 return idx;
fc6971d4 2800
c6509cc3
BB		 2801failed_final_insert:
2802 debugfs_remove_recursive(data->debugfs);
2803 ieee80211_unregister_hw(data->hw);
de0421d5 2804failed_hw:
805dbe17
JM		 2805 device_release_driver(data->dev);
2806failed_bind:
de0421d5
JB		 2807 device_unregister(data->dev);
2808failed_drvdata:
2809 ieee80211_free_hw(hw);
2810failed:
2811 return err;
fc6971d4
JM		 2812}
2813
579a05f2
JR		 2814static void hwsim_mcast_del_radio(int id, const char *hwname,
2815 struct genl_info *info)
fc6971d4 2816{
579a05f2
JR		 2817 struct sk_buff *skb;
2818 void *data;
2819 int ret;
2820
2821 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
2822 if (!skb)
2823 return;
2824
2825 data = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
2826 HWSIM_CMD_DEL_RADIO);
2827 if (!data)
2828 goto error;
2829
2830 ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
2831 if (ret < 0)
2832 goto error;
2833
b9995f83
JR		 2834 ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME, strlen(hwname),
2835 hwname);
2836 if (ret < 0)
2837 goto error;
579a05f2
JR		 2838
2839 genlmsg_end(skb, data);
2840
2841 hwsim_mcast_config_msg(skb, info);
2842
2843 return;
2844
2845error:
2846 nlmsg_free(skb);
2847}
2848
2849static void mac80211_hwsim_del_radio(struct mac80211_hwsim_data *data,
2850 const char *hwname,
2851 struct genl_info *info)
2852{
2853 hwsim_mcast_del_radio(data->idx, hwname, info);
de0421d5
JB		 2854 debugfs_remove_recursive(data->debugfs);
2855 ieee80211_unregister_hw(data->hw);
2856 device_release_driver(data->dev);
2857 device_unregister(data->dev);
2858 ieee80211_free_hw(data->hw);
fc6971d4
JM		 2859}
2860
93d638d4
PF		 2861static int mac80211_hwsim_get_radio(struct sk_buff *skb,
2862 struct mac80211_hwsim_data *data,
2863 u32 portid, u32 seq,
2864 struct netlink_callback *cb, int flags)
2865{
2866 void *hdr;
2867 struct hwsim_new_radio_params param = { };
2868 int res = -EMSGSIZE;
2869
2870 hdr = genlmsg_put(skb, portid, seq, &hwsim_genl_family, flags,
2871 HWSIM_CMD_GET_RADIO);
2872 if (!hdr)
2873 return -EMSGSIZE;
2874
2875 if (cb)
0a833c29 2876 genl_dump_check_consistent(cb, hdr);
93d638d4 2877
b0ad5e8b
PF		 2878 if (data->alpha2[0] && data->alpha2[1])
2879 param.reg_alpha2 = data->alpha2;
2880
93d638d4
PF		 2881 param.reg_strict = !!(data->hw->wiphy->regulatory_flags &
2882 REGULATORY_STRICT_REG);
2883 param.p2p_device = !!(data->hw->wiphy->interface_modes &
2884 BIT(NL80211_IFTYPE_P2P_DEVICE));
2885 param.use_chanctx = data->use_chanctx;
2886 param.regd = data->regd;
2887 param.channels = data->channels;
2888 param.hwname = wiphy_name(data->hw->wiphy);
2889
2890 res = append_radio_msg(skb, data->idx, &param);
2891 if (res < 0)
2892 goto out_err;
2893
053c095a
JB		 2894 genlmsg_end(skb, hdr);
2895 return 0;
93d638d4
PF		 2896
2897out_err:
2898 genlmsg_cancel(skb, hdr);
2899 return res;
2900}
2901
de0421d5 2902static void mac80211_hwsim_free(void)
fc6971d4 2903{
de0421d5 2904 struct mac80211_hwsim_data *data;
fc6971d4 2905
de0421d5
JB		 2906 spin_lock_bh(&hwsim_radio_lock);
2907 while ((data = list_first_entry_or_null(&hwsim_radios,
2908 struct mac80211_hwsim_data,
2909 list))) {
2910 list_del(&data->list);
2911 spin_unlock_bh(&hwsim_radio_lock);
b9995f83
JR		 2912 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
2913 NULL);
de0421d5 2914 spin_lock_bh(&hwsim_radio_lock);
fc6971d4 2915 }
de0421d5
JB		 2916 spin_unlock_bh(&hwsim_radio_lock);
2917 class_destroy(hwsim_class);
bba05e3d
JD		 2918}
2919
de0421d5
JB		 2920static const struct net_device_ops hwsim_netdev_ops = {
2921 .ndo_start_xmit = hwsim_mon_xmit,
de0421d5
JB		 2922 .ndo_set_mac_address = eth_mac_addr,
2923 .ndo_validate_addr = eth_validate_addr,
2924};
73606d00 2925
de0421d5 2926static void hwsim_mon_setup(struct net_device *dev)
73606d00 2927{
de0421d5 2928 dev->netdev_ops = &hwsim_netdev_ops;
cf124db5 2929 dev->needs_free_netdev = true;
de0421d5 2930 ether_setup(dev);
3db6da1f 2931 dev->priv_flags |= IFF_NO_QUEUE;
de0421d5 2932 dev->type = ARPHRD_IEEE80211_RADIOTAP;
93803b33 2933 eth_zero_addr(dev->dev_addr);
de0421d5 2934 dev->dev_addr[0] = 0x12;
73606d00
DW		 2935}
2936
9ddd12af 2937static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(const u8 *addr)
7882513b 2938{
c6509cc3
BB		 2939 return rhashtable_lookup_fast(&hwsim_radios_rht,
2940 addr,
2941 hwsim_rht_params);
7882513b
JL		 2942}
2943
f21e4d8e
MW		 2944static void hwsim_register_wmediumd(struct net *net, u32 portid)
2945{
2946 struct mac80211_hwsim_data *data;
2947
2948 hwsim_net_set_wmediumd(net, portid);
2949
2950 spin_lock_bh(&hwsim_radio_lock);
2951 list_for_each_entry(data, &hwsim_radios, list) {
2952 if (data->netgroup == hwsim_net_get_netgroup(net))
2953 data->wmediumd = portid;
2954 }
2955 spin_unlock_bh(&hwsim_radio_lock);
2956}
2957
7882513b
JL		 2958static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
2959 struct genl_info *info)
2960{
2961
2962 struct ieee80211_hdr *hdr;
2963 struct mac80211_hwsim_data *data2;
2964 struct ieee80211_tx_info *txi;
2965 struct hwsim_tx_rate *tx_attempts;
959eb2fd 2966 u64 ret_skb_cookie;
7882513b 2967 struct sk_buff *skb, *tmp;
9ddd12af 2968 const u8 *src;
7882513b 2969 unsigned int hwsim_flags;
7882513b
JL		 2970 int i;
2971 bool found = false;
2972
2973 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
9ddd12af
JB		 2974 !info->attrs[HWSIM_ATTR_FLAGS] ||
2975 !info->attrs[HWSIM_ATTR_COOKIE] ||
62397da5 2976 !info->attrs[HWSIM_ATTR_SIGNAL] ||
9ddd12af 2977 !info->attrs[HWSIM_ATTR_TX_INFO])
7882513b
JL		 2978 goto out;
2979
9ddd12af 2980 src = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
7882513b 2981 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
959eb2fd 2982 ret_skb_cookie = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
7882513b
JL		 2983
2984 data2 = get_hwsim_data_ref_from_addr(src);
9ddd12af 2985 if (!data2)
7882513b
JL		 2986 goto out;
2987
f21e4d8e
MW		 2988 if (hwsim_net_get_netgroup(genl_info_net(info)) != data2->netgroup)
2989 goto out;
2990
2991 if (info->snd_portid != data2->wmediumd)
2992 goto out;
2993
7882513b
JL		 2994 /* look for the skb matching the cookie passed back from user */
2995 skb_queue_walk_safe(&data2->pending, skb, tmp) {
959eb2fd
JB		 2996 u64 skb_cookie;
2997
2998 txi = IEEE80211_SKB_CB(skb);
2999 skb_cookie = (u64)(uintptr_t)txi->rate_driver_data[0];
3000
3001 if (skb_cookie == ret_skb_cookie) {
7882513b
JL		 3002 skb_unlink(skb, &data2->pending);
3003 found = true;
3004 break;
3005 }
3006 }
3007
3008 /* not found */
3009 if (!found)
3010 goto out;
3011
3012 /* Tx info received because the frame was broadcasted on user space,
3013 so we get all the necessary info: tx attempts and skb control buff */
3014
3015 tx_attempts = (struct hwsim_tx_rate *)nla_data(
3016 info->attrs[HWSIM_ATTR_TX_INFO]);
3017
3018 /* now send back TX status */
3019 txi = IEEE80211_SKB_CB(skb);
3020
7882513b
JL		 3021 ieee80211_tx_info_clear_status(txi);
3022
3023 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
3024 txi->status.rates[i].idx = tx_attempts[i].idx;
3025 txi->status.rates[i].count = tx_attempts[i].count;
7882513b
JL		 3026 }
3027
3028 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
3029
3030 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
3031 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
3032 if (skb->len >= 16) {
3033 hdr = (struct ieee80211_hdr *) skb->data;
c0e30763 3034 mac80211_hwsim_monitor_ack(data2->channel,
e8261171 3035 hdr->addr2);
7882513b 3036 }
06cf5c4c 3037 txi->flags |= IEEE80211_TX_STAT_ACK;
7882513b
JL		 3038 }
3039 ieee80211_tx_status_irqsafe(data2->hw, skb);
3040 return 0;
3041out:
3042 return -EINVAL;
3043
3044}
3045
3046static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
3047 struct genl_info *info)
3048{
e8261171 3049 struct mac80211_hwsim_data *data2;
7882513b 3050 struct ieee80211_rx_status rx_status;
9ddd12af 3051 const u8 *dst;
7882513b 3052 int frame_data_len;
9ddd12af 3053 void *frame_data;
7882513b
JL		 3054 struct sk_buff *skb = NULL;
3055
3056 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
e8261171
JB		 3057 !info->attrs[HWSIM_ATTR_FRAME] ||
3058 !info->attrs[HWSIM_ATTR_RX_RATE] ||
3059 !info->attrs[HWSIM_ATTR_SIGNAL])
7882513b
JL		 3060 goto out;
3061
9ddd12af 3062 dst = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
7882513b 3063 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
9ddd12af 3064 frame_data = (void *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
7882513b
JL		 3065
3066 /* Allocate new skb here */
3067 skb = alloc_skb(frame_data_len, GFP_KERNEL);
3068 if (skb == NULL)
3069 goto err;
3070
9ddd12af 3071 if (frame_data_len > IEEE80211_MAX_DATA_LEN)
7882513b
JL		 3072 goto err;
3073
9ddd12af 3074 /* Copy the data */
59ae1d12 3075 skb_put_data(skb, frame_data, frame_data_len);
7882513b 3076
9ddd12af
JB		 3077 data2 = get_hwsim_data_ref_from_addr(dst);
3078 if (!data2)
7882513b
JL		 3079 goto out;
3080
f21e4d8e
MW		 3081 if (hwsim_net_get_netgroup(genl_info_net(info)) != data2->netgroup)
3082 goto out;
3083
3084 if (info->snd_portid != data2->wmediumd)
3085 goto out;
3086
7882513b
JL		 3087 /* check if radio is configured properly */
3088
e8261171 3089 if (data2->idle || !data2->started)
7882513b
JL		 3090 goto out;
3091
9ddd12af 3092 /* A frame is received from user space */
7882513b 3093 memset(&rx_status, 0, sizeof(rx_status));
641cf2a5
AW		 3094 if (info->attrs[HWSIM_ATTR_FREQ]) {
3095 /* throw away off-channel packets, but allow both the temporary
3096 * ("hw" scan/remain-on-channel) and regular channel, since the
3097 * internal datapath also allows this
3098 */
3099 mutex_lock(&data2->mutex);
3100 rx_status.freq = nla_get_u32(info->attrs[HWSIM_ATTR_FREQ]);
3101
3102 if (rx_status.freq != data2->channel->center_freq &&
3103 (!data2->tmp_chan ||
3104 rx_status.freq != data2->tmp_chan->center_freq)) {
3105 mutex_unlock(&data2->mutex);
3106 goto out;
3107 }
3108 mutex_unlock(&data2->mutex);
3109 } else {
3110 rx_status.freq = data2->channel->center_freq;
3111 }
3112
7882513b
JL		 3113 rx_status.band = data2->channel->band;
3114 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
3115 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
3116
3117 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
2155c3f8
BG		 3118 data2->rx_pkts++;
3119 data2->rx_bytes += skb->len;
7882513b
JL		 3120 ieee80211_rx_irqsafe(data2->hw, skb);
3121
3122 return 0;
3123err:
62b093b3 3124 pr_debug("mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 3125out:
3126 dev_kfree_skb(skb);
3127 return -EINVAL;
3128}
3129
3130static int hwsim_register_received_nl(struct sk_buff *skb_2,
3131 struct genl_info *info)
3132{
f21e4d8e 3133 struct net *net = genl_info_net(info);
c5ac0854
JB		 3134 struct mac80211_hwsim_data *data;
3135 int chans = 1;
3136
3137 spin_lock_bh(&hwsim_radio_lock);
3138 list_for_each_entry(data, &hwsim_radios, list)
3139 chans = max(chans, data->channels);
3140 spin_unlock_bh(&hwsim_radio_lock);
3141
3142 /* In the future we should revise the userspace API and allow it
3143 * to set a flag that it does support multi-channel, then we can
3144 * let this pass conditionally on the flag.
3145 * For current userspace, prohibit it since it won't work right.
3146 */
3147 if (chans > 1)
3148 return -EOPNOTSUPP;
3149
f21e4d8e 3150 if (hwsim_net_get_wmediumd(net))
85ca8fc7 3151 return -EBUSY;
7882513b 3152
f21e4d8e 3153 hwsim_register_wmediumd(net, info->snd_portid);
7882513b 3154
62b093b3 3155 pr_debug("mac80211_hwsim: received a REGISTER, "
15e47304 3156 "switching to wmediumd mode with pid %d\n", info->snd_portid);
7882513b
JL		 3157
3158 return 0;
7882513b
JL		 3159}
3160
62759361 3161static int hwsim_new_radio_nl(struct sk_buff *msg, struct genl_info *info)
bc791098 3162{
62759361 3163 struct hwsim_new_radio_params param = { 0 };
ff4dd73d 3164 const char *hwname = NULL;
67bd5238 3165 int ret;
62759361
JR		 3166
3167 param.reg_strict = info->attrs[HWSIM_ATTR_REG_STRICT_REG];
3168 param.p2p_device = info->attrs[HWSIM_ATTR_SUPPORT_P2P_DEVICE];
3169 param.channels = channels;
3170 param.destroy_on_close =
3171 info->attrs[HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE];
bc791098
JB		 3172
3173 if (info->attrs[HWSIM_ATTR_CHANNELS])
62759361 3174 param.channels = nla_get_u32(info->attrs[HWSIM_ATTR_CHANNELS]);
bc791098 3175
9a0cb89a 3176 if (info->attrs[HWSIM_ATTR_NO_VIF])
62759361 3177 param.no_vif = true;
9a0cb89a 3178
ff4dd73d
JB		 3179 if (info->attrs[HWSIM_ATTR_RADIO_NAME]) {
3180 hwname = kasprintf(GFP_KERNEL, "%.*s",
3181 nla_len(info->attrs[HWSIM_ATTR_RADIO_NAME]),
3182 (char *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]));
3183 if (!hwname)
3184 return -ENOMEM;
3185 param.hwname = hwname;
3186 }
5cd8926b 3187
361c3e04 3188 if (info->attrs[HWSIM_ATTR_USE_CHANCTX])
62759361 3189 param.use_chanctx = true;
361c3e04 3190 else
62759361 3191 param.use_chanctx = (param.channels > 1);
361c3e04 3192
26b0e411 3193 if (info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2])
62759361
JR		 3194 param.reg_alpha2 =
3195 nla_data(info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2]);
26b0e411
JB		 3196
3197 if (info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]) {
3198 u32 idx = nla_get_u32(info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]);
3199
3200 if (idx >= ARRAY_SIZE(hwsim_world_regdom_custom))
3201 return -EINVAL;
62759361 3202 param.regd = hwsim_world_regdom_custom[idx];
26b0e411
JB		 3203 }
3204
67bd5238
BH		 3205 ret = mac80211_hwsim_new_radio(info, &param);
3206 kfree(hwname);
3207 return ret;
bc791098
JB		 3208}
3209
579a05f2 3210static int hwsim_del_radio_nl(struct sk_buff *msg, struct genl_info *info)
bc791098
JB		 3211{
3212 struct mac80211_hwsim_data *data;
8cdd9e1c
BG		 3213 s64 idx = -1;
3214 const char *hwname = NULL;
bc791098 3215
ff4dd73d 3216 if (info->attrs[HWSIM_ATTR_RADIO_ID]) {
8cdd9e1c 3217 idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
ff4dd73d
JB		 3218 } else if (info->attrs[HWSIM_ATTR_RADIO_NAME]) {
3219 hwname = kasprintf(GFP_KERNEL, "%.*s",
3220 nla_len(info->attrs[HWSIM_ATTR_RADIO_NAME]),
3221 (char *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]));
3222 if (!hwname)
3223 return -ENOMEM;
3224 } else
bc791098 3225 return -EINVAL;
bc791098
JB		 3226
3227 spin_lock_bh(&hwsim_radio_lock);
3228 list_for_each_entry(data, &hwsim_radios, list) {
8cdd9e1c
BG		 3229 if (idx >= 0) {
3230 if (data->idx != idx)
3231 continue;
3232 } else {
ff4dd73d
JB		 3233 if (!hwname ||
3234 strcmp(hwname, wiphy_name(data->hw->wiphy)))
8cdd9e1c
BG		 3235 continue;
3236 }
3237
100cb9ff
MW		 3238 if (!net_eq(wiphy_net(data->hw->wiphy), genl_info_net(info)))
3239 continue;
3240
bc791098 3241 list_del(&data->list);
c6509cc3
BB		 3242 rhashtable_remove_fast(&hwsim_radios_rht, &data->rht,
3243 hwsim_rht_params);
bc791098 3244 spin_unlock_bh(&hwsim_radio_lock);
b9995f83
JR		 3245 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
3246 info);
ff4dd73d 3247 kfree(hwname);
bc791098
JB		 3248 return 0;
3249 }
3250 spin_unlock_bh(&hwsim_radio_lock);
3251
ff4dd73d 3252 kfree(hwname);
bc791098 3253 return -ENODEV;
7882513b
JL		 3254}
3255
93d638d4
PF		 3256static int hwsim_get_radio_nl(struct sk_buff *msg, struct genl_info *info)
3257{
3258 struct mac80211_hwsim_data *data;
3259 struct sk_buff *skb;
3260 int idx, res = -ENODEV;
3261
3262 if (!info->attrs[HWSIM_ATTR_RADIO_ID])
3263 return -EINVAL;
3264 idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
3265
3266 spin_lock_bh(&hwsim_radio_lock);
3267 list_for_each_entry(data, &hwsim_radios, list) {
3268 if (data->idx != idx)
3269 continue;
3270
100cb9ff
MW		 3271 if (!net_eq(wiphy_net(data->hw->wiphy), genl_info_net(info)))
3272 continue;
3273
162bd5e5 3274 skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
93d638d4
PF		 3275 if (!skb) {
3276 res = -ENOMEM;
3277 goto out_err;
3278 }
3279
3280 res = mac80211_hwsim_get_radio(skb, data, info->snd_portid,
3281 info->snd_seq, NULL, 0);
3282 if (res < 0) {
3283 nlmsg_free(skb);
3284 goto out_err;
3285 }
3286
3287 genlmsg_reply(skb, info);
3288 break;
3289 }
3290
3291out_err:
3292 spin_unlock_bh(&hwsim_radio_lock);
3293
3294 return res;
3295}
3296
3297static int hwsim_dump_radio_nl(struct sk_buff *skb,
3298 struct netlink_callback *cb)
3299{
3300 int idx = cb->args[0];
3301 struct mac80211_hwsim_data *data = NULL;
3302 int res;
3303
3304 spin_lock_bh(&hwsim_radio_lock);
3305
3306 if (idx == hwsim_radio_idx)
3307 goto done;
3308
3309 list_for_each_entry(data, &hwsim_radios, list) {
3310 if (data->idx < idx)
3311 continue;
3312
100cb9ff
MW		 3313 if (!net_eq(wiphy_net(data->hw->wiphy), sock_net(skb->sk)))
3314 continue;
3315
93d638d4
PF		 3316 res = mac80211_hwsim_get_radio(skb, data,
3317 NETLINK_CB(cb->skb).portid,
3318 cb->nlh->nlmsg_seq, cb,
3319 NLM_F_MULTI);
3320 if (res < 0)
3321 break;
3322
3323 idx = data->idx + 1;
3324 }
3325
3326 cb->args[0] = idx;
3327
3328done:
3329 spin_unlock_bh(&hwsim_radio_lock);
3330 return skb->len;
3331}
3332
7882513b 3333/* Generic Netlink operations array */
4534de83 3334static const struct genl_ops hwsim_ops[] = {
7882513b
JL		 3335 {
3336 .cmd = HWSIM_CMD_REGISTER,
3337 .policy = hwsim_genl_policy,
3338 .doit = hwsim_register_received_nl,
f21e4d8e 3339 .flags = GENL_UNS_ADMIN_PERM,
7882513b
JL		 3340 },
3341 {
3342 .cmd = HWSIM_CMD_FRAME,
3343 .policy = hwsim_genl_policy,
3344 .doit = hwsim_cloned_frame_received_nl,
3345 },
3346 {
3347 .cmd = HWSIM_CMD_TX_INFO_FRAME,
3348 .policy = hwsim_genl_policy,
3349 .doit = hwsim_tx_info_frame_received_nl,
3350 },
bc791098 3351 {
62759361 3352 .cmd = HWSIM_CMD_NEW_RADIO,
bc791098 3353 .policy = hwsim_genl_policy,
62759361 3354 .doit = hwsim_new_radio_nl,
100cb9ff 3355 .flags = GENL_UNS_ADMIN_PERM,
bc791098
JB		 3356 },
3357 {
579a05f2 3358 .cmd = HWSIM_CMD_DEL_RADIO,
bc791098 3359 .policy = hwsim_genl_policy,
579a05f2 3360 .doit = hwsim_del_radio_nl,
100cb9ff 3361 .flags = GENL_UNS_ADMIN_PERM,
bc791098 3362 },
93d638d4
PF		 3363 {
3364 .cmd = HWSIM_CMD_GET_RADIO,
3365 .policy = hwsim_genl_policy,
3366 .doit = hwsim_get_radio_nl,
3367 .dumpit = hwsim_dump_radio_nl,
3368 },
7882513b
JL		 3369};
3370
56989f6d 3371static struct genl_family hwsim_genl_family __ro_after_init = {
489111e5
JB		 3372 .name = "MAC80211_HWSIM",
3373 .version = 1,
3374 .maxattr = HWSIM_ATTR_MAX,
3375 .netnsok = true,
3376 .module = THIS_MODULE,
3377 .ops = hwsim_ops,
3378 .n_ops = ARRAY_SIZE(hwsim_ops),
3379 .mcgrps = hwsim_mcgrps,
3380 .n_mcgrps = ARRAY_SIZE(hwsim_mcgrps),
3381};
3382
e9ed49bf
JR		 3383static void destroy_radio(struct work_struct *work)
3384{
3385 struct mac80211_hwsim_data *data =
3386 container_of(work, struct mac80211_hwsim_data, destroy_work);
3387
b9995f83 3388 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy), NULL);
e9ed49bf
JR		 3389}
3390
3391static void remove_user_radios(u32 portid)
3392{
3393 struct mac80211_hwsim_data *entry, *tmp;
3394
3395 spin_lock_bh(&hwsim_radio_lock);
3396 list_for_each_entry_safe(entry, tmp, &hwsim_radios, list) {
3397 if (entry->destroy_on_close && entry->portid == portid) {
3398 list_del(&entry->list);
c6509cc3
BB		 3399 rhashtable_remove_fast(&hwsim_radios_rht, &entry->rht,
3400 hwsim_rht_params);
e9ed49bf
JR		 3401 INIT_WORK(&entry->destroy_work, destroy_radio);
3402 schedule_work(&entry->destroy_work);
3403 }
3404 }
3405 spin_unlock_bh(&hwsim_radio_lock);
3406}
3407
7882513b
JL		 3408static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
3409 unsigned long state,
3410 void *_notify)
3411{
3412 struct netlink_notify *notify = _notify;
3413
3414 if (state != NETLINK_URELEASE)
3415 return NOTIFY_DONE;
3416
e9ed49bf
JR		 3417 remove_user_radios(notify->portid);
3418
f21e4d8e 3419 if (notify->portid == hwsim_net_get_wmediumd(notify->net)) {
7882513b
JL		 3420 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
3421 " socket, switching to perfect channel medium\n");
f21e4d8e 3422 hwsim_register_wmediumd(notify->net, 0);
7882513b
JL		 3423 }
3424 return NOTIFY_DONE;
3425
3426}
3427
3428static struct notifier_block hwsim_netlink_notifier = {
3429 .notifier_call = mac80211_hwsim_netlink_notify,
3430};
3431
56989f6d 3432static int __init hwsim_init_netlink(void)
7882513b
JL		 3433{
3434 int rc;
e8261171 3435
7882513b
JL		 3436 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
3437
489111e5 3438 rc = genl_register_family(&hwsim_genl_family);
7882513b
JL		 3439 if (rc)
3440 goto failure;
3441
3442 rc = netlink_register_notifier(&hwsim_netlink_notifier);
2459cd87
SKY		 3443 if (rc) {
3444 genl_unregister_family(&hwsim_genl_family);
7882513b 3445 goto failure;
2459cd87 3446 }
7882513b
JL		 3447
3448 return 0;
3449
3450failure:
62b093b3 3451 pr_debug("mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 3452 return -EINVAL;
3453}
3454
100cb9ff
MW		 3455static __net_init int hwsim_init_net(struct net *net)
3456{
3457 hwsim_net_set_netgroup(net);
3458
3459 return 0;
3460}
3461
3462static void __net_exit hwsim_exit_net(struct net *net)
3463{
3464 struct mac80211_hwsim_data *data, *tmp;
3465
3466 spin_lock_bh(&hwsim_radio_lock);
3467 list_for_each_entry_safe(data, tmp, &hwsim_radios, list) {
3468 if (!net_eq(wiphy_net(data->hw->wiphy), net))
3469 continue;
3470
3471 /* Radios created in init_net are returned to init_net. */
3472 if (data->netgroup == hwsim_net_get_netgroup(&init_net))
3473 continue;
3474
3475 list_del(&data->list);
c6509cc3
BB		 3476 rhashtable_remove_fast(&hwsim_radios_rht, &data->rht,
3477 hwsim_rht_params);
100cb9ff
MW		 3478 INIT_WORK(&data->destroy_work, destroy_radio);
3479 schedule_work(&data->destroy_work);
3480 }
3481 spin_unlock_bh(&hwsim_radio_lock);
3482}
3483
3484static struct pernet_operations hwsim_net_ops = {
3485 .init = hwsim_init_net,
3486 .exit = hwsim_exit_net,
3487 .id = &hwsim_net_id,
3488 .size = sizeof(struct hwsim_net),
3489};
3490
7882513b
JL		 3491static void hwsim_exit_netlink(void)
3492{
7882513b
JL		 3493 /* unregister the notifier */
3494 netlink_unregister_notifier(&hwsim_netlink_notifier);
3495 /* unregister the family */
cf7a6b2d 3496 genl_unregister_family(&hwsim_genl_family);
7882513b
JL		 3497}
3498
acc1e7a3
JM		 3499static int __init init_mac80211_hwsim(void)
3500{
f39c2bfa 3501 int i, err;
acc1e7a3 3502
bc791098 3503 if (radios < 0 || radios > 100)
acc1e7a3
JM		 3504 return -EINVAL;
3505
e8261171
JB		 3506 if (channels < 1)
3507 return -EINVAL;
3508
0e057d73 3509 spin_lock_init(&hwsim_radio_lock);
acc1e7a3 3510
c6509cc3
BB		 3511 rhashtable_init(&hwsim_radios_rht, &hwsim_rht_params);
3512
100cb9ff 3513 err = register_pernet_device(&hwsim_net_ops);
9ea92774
MP		 3514 if (err)
3515 return err;
3516
100cb9ff
MW		 3517 err = platform_driver_register(&mac80211_hwsim_driver);
3518 if (err)
3519 goto out_unregister_pernet;
3520
acc1e7a3 3521 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
9ea92774
MP		 3522 if (IS_ERR(hwsim_class)) {
3523 err = PTR_ERR(hwsim_class);
f39c2bfa 3524 goto out_unregister_driver;
9ea92774 3525 }
acc1e7a3 3526
62759361
JR		 3527 err = hwsim_init_netlink();
3528 if (err < 0)
3529 goto out_unregister_driver;
3530
0e057d73 3531 for (i = 0; i < radios; i++) {
62759361
JR		 3532 struct hwsim_new_radio_params param = { 0 };
3533
3534 param.channels = channels;
acc1e7a3 3535
4a5af9c2 3536 switch (regtest) {
4a5af9c2 3537 case HWSIM_REGTEST_DIFF_COUNTRY:
26b0e411 3538 if (i < ARRAY_SIZE(hwsim_alpha2s))
62759361 3539 param.reg_alpha2 = hwsim_alpha2s[i];
4a5af9c2
LR		 3540 break;
3541 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
3542 if (!i)
62759361 3543 param.reg_alpha2 = hwsim_alpha2s[0];
4a5af9c2 3544 break;
4a5af9c2 3545 case HWSIM_REGTEST_STRICT_ALL:
62759361 3546 param.reg_strict = true;
26b0e411 3547 case HWSIM_REGTEST_DRIVER_REG_ALL:
62759361 3548 param.reg_alpha2 = hwsim_alpha2s[0];
4a5af9c2 3549 break;
26b0e411
JB		 3550 case HWSIM_REGTEST_WORLD_ROAM:
3551 if (i == 0)
62759361 3552 param.regd = &hwsim_world_regdom_custom_01;
4a5af9c2
LR		 3553 break;
3554 case HWSIM_REGTEST_CUSTOM_WORLD:
62759361 3555 param.regd = &hwsim_world_regdom_custom_01;
26b0e411 3556 break;
4a5af9c2 3557 case HWSIM_REGTEST_CUSTOM_WORLD_2:
26b0e411 3558 if (i == 0)
62759361 3559 param.regd = &hwsim_world_regdom_custom_01;
26b0e411 3560 else if (i == 1)
62759361 3561 param.regd = &hwsim_world_regdom_custom_02;
4a5af9c2
LR		 3562 break;
3563 case HWSIM_REGTEST_STRICT_FOLLOW:
26b0e411 3564 if (i == 0) {
62759361
JR		 3565 param.reg_strict = true;
3566 param.reg_alpha2 = hwsim_alpha2s[0];
26b0e411 3567 }
4a5af9c2
LR		 3568 break;
3569 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
26b0e411 3570 if (i == 0) {
62759361
JR		 3571 param.reg_strict = true;
3572 param.reg_alpha2 = hwsim_alpha2s[0];
26b0e411 3573 } else if (i == 1) {
62759361 3574 param.reg_alpha2 = hwsim_alpha2s[1];
26b0e411 3575 }
4a5af9c2
LR		 3576 break;
3577 case HWSIM_REGTEST_ALL:
26b0e411
JB		 3578 switch (i) {
3579 case 0:
62759361 3580 param.regd = &hwsim_world_regdom_custom_01;
26b0e411
JB		 3581 break;
3582 case 1:
62759361 3583 param.regd = &hwsim_world_regdom_custom_02;
26b0e411
JB		 3584 break;
3585 case 2:
62759361 3586 param.reg_alpha2 = hwsim_alpha2s[0];
26b0e411
JB		 3587 break;
3588 case 3:
62759361 3589 param.reg_alpha2 = hwsim_alpha2s[1];
26b0e411
JB		 3590 break;
3591 case 4:
62759361
JR		 3592 param.reg_strict = true;
3593 param.reg_alpha2 = hwsim_alpha2s[2];
26b0e411
JB		 3594 break;
3595 }
4a5af9c2
LR		 3596 break;
3597 default:
3598 break;
3599 }
3600
62759361
JR		 3601 param.p2p_device = support_p2p_device;
3602 param.use_chanctx = channels > 1;
3603
3604 err = mac80211_hwsim_new_radio(NULL, &param);
bc791098 3605 if (err < 0)
f39c2bfa 3606 goto out_free_radios;
acc1e7a3
JM		 3607 }
3608
c835a677
TG		 3609 hwsim_mon = alloc_netdev(0, "hwsim%d", NET_NAME_UNKNOWN,
3610 hwsim_mon_setup);
bcdd8220
WY		 3611 if (hwsim_mon == NULL) {
3612 err = -ENOMEM;
f39c2bfa 3613 goto out_free_radios;
bcdd8220 3614 }
acc1e7a3 3615
7882513b 3616 rtnl_lock();
7882513b 3617 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
f39c2bfa
JB		 3618 if (err < 0) {
3619 rtnl_unlock();
3620 goto out_free_radios;
3621 }
7882513b
JL		 3622
3623 err = register_netdevice(hwsim_mon);
f39c2bfa
JB		 3624 if (err < 0) {
3625 rtnl_unlock();
3626 goto out_free_mon;
3627 }
7882513b
JL		 3628 rtnl_unlock();
3629
acc1e7a3
JM		 3630 return 0;
3631
f39c2bfa 3632out_free_mon:
acc1e7a3 3633 free_netdev(hwsim_mon);
f39c2bfa 3634out_free_radios:
3a33cc10 3635 mac80211_hwsim_free();
f39c2bfa 3636out_unregister_driver:
c07fe5ae 3637 platform_driver_unregister(&mac80211_hwsim_driver);
100cb9ff
MW		 3638out_unregister_pernet:
3639 unregister_pernet_device(&hwsim_net_ops);
acc1e7a3
JM		 3640 return err;
3641}
f8fffc7e 3642module_init(init_mac80211_hwsim);
acc1e7a3
JM		 3643
3644static void __exit exit_mac80211_hwsim(void)
3645{
62b093b3 3646 pr_debug("mac80211_hwsim: unregister radios\n");
acc1e7a3 3647
7882513b
JL		 3648 hwsim_exit_netlink();
3649
acc1e7a3 3650 mac80211_hwsim_free();
c6509cc3 3651 rhashtable_destroy(&hwsim_radios_rht);
5d416351 3652 unregister_netdev(hwsim_mon);
c07fe5ae 3653 platform_driver_unregister(&mac80211_hwsim_driver);
100cb9ff 3654 unregister_pernet_device(&hwsim_net_ops);
acc1e7a3 3655}
acc1e7a3 3656module_exit(exit_mac80211_hwsim);
Linux 6.x block layer and io_uring tree(s)