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cfg80211: fix integer signedness in chandef_primary_freqs()
[mirror_ubuntu-bionic-kernel.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
JL		 32#include <net/genetlink.h>
33#include "mac80211_hwsim.h"
34
35#define WARN_QUEUE 100
36#define MAX_QUEUE 200
acc1e7a3
JM		 37
38MODULE_AUTHOR("Jouni Malinen");
39MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
40MODULE_LICENSE("GPL");
41
15e47304 42static u32 wmediumd_portid;
a1910f9c 43
acc1e7a3
JM		 44static int radios = 2;
45module_param(radios, int, 0444);
46MODULE_PARM_DESC(radios, "Number of simulated radios");
47
e8261171
JB		 48static int channels = 1;
49module_param(channels, int, 0444);
50MODULE_PARM_DESC(channels, "Number of concurrent channels");
69068036 51
a357d7f9
JB		 52static bool paged_rx = false;
53module_param(paged_rx, bool, 0644);
54MODULE_PARM_DESC(paged_rx, "Use paged SKBs for RX instead of linear ones");
55
1eb32179
KB		 56static bool rctbl = false;
57module_param(rctbl, bool, 0444);
58MODULE_PARM_DESC(rctbl, "Handle rate control table");
59
8c66a3d9
JB		 60static bool support_p2p_device = true;
61module_param(support_p2p_device, bool, 0444);
62MODULE_PARM_DESC(support_p2p_device, "Support P2P-Device interface type");
63
4a5af9c2
LR		 64/**
65 * enum hwsim_regtest - the type of regulatory tests we offer
66 *
67 * These are the different values you can use for the regtest
68 * module parameter. This is useful to help test world roaming
69 * and the driver regulatory_hint() call and combinations of these.
70 * If you want to do specific alpha2 regulatory domain tests simply
71 * use the userspace regulatory request as that will be respected as
72 * well without the need of this module parameter. This is designed
73 * only for testing the driver regulatory request, world roaming
74 * and all possible combinations.
75 *
76 * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
77 * this is the default value.
78 * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
79 * hint, only one driver regulatory hint will be sent as such the
80 * secondary radios are expected to follow.
81 * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
82 * request with all radios reporting the same regulatory domain.
83 * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
84 * different regulatory domains requests. Expected behaviour is for
85 * an intersection to occur but each device will still use their
86 * respective regulatory requested domains. Subsequent radios will
87 * use the resulting intersection.
25985edc 88 * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We accomplish
4a5af9c2
LR		 89 * this by using a custom beacon-capable regulatory domain for the first
90 * radio. All other device world roam.
91 * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
92 * domain requests. All radios will adhere to this custom world regulatory
93 * domain.
94 * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
95 * domain requests. The first radio will adhere to the first custom world
96 * regulatory domain, the second one to the second custom world regulatory
97 * domain. All other devices will world roam.
98 * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain
99 * settings, only the first radio will send a regulatory domain request
100 * and use strict settings. The rest of the radios are expected to follow.
101 * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
102 * settings. All radios will adhere to this.
103 * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
104 * domain settings, combined with secondary driver regulatory domain
105 * settings. The first radio will get a strict regulatory domain setting
106 * using the first driver regulatory request and the second radio will use
107 * non-strict settings using the second driver regulatory request. All
108 * other devices should follow the intersection created between the
109 * first two.
110 * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
111 * at least 6 radios for a complete test. We will test in this order:
112 * 1 - driver custom world regulatory domain
113 * 2 - second custom world regulatory domain
114 * 3 - first driver regulatory domain request
115 * 4 - second driver regulatory domain request
116 * 5 - strict regulatory domain settings using the third driver regulatory
117 * domain request
118 * 6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
119 * regulatory requests.
120 */
121enum hwsim_regtest {
122 HWSIM_REGTEST_DISABLED = 0,
123 HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1,
124 HWSIM_REGTEST_DRIVER_REG_ALL = 2,
125 HWSIM_REGTEST_DIFF_COUNTRY = 3,
126 HWSIM_REGTEST_WORLD_ROAM = 4,
127 HWSIM_REGTEST_CUSTOM_WORLD = 5,
128 HWSIM_REGTEST_CUSTOM_WORLD_2 = 6,
129 HWSIM_REGTEST_STRICT_FOLLOW = 7,
130 HWSIM_REGTEST_STRICT_ALL = 8,
131 HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9,
132 HWSIM_REGTEST_ALL = 10,
133};
134
135/* Set to one of the HWSIM_REGTEST_* values above */
136static int regtest = HWSIM_REGTEST_DISABLED;
137module_param(regtest, int, 0444);
138MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run");
139
140static const char *hwsim_alpha2s[] = {
141 "FI",
142 "AL",
143 "US",
144 "DE",
145 "JP",
146 "AL",
147};
148
149static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = {
150 .n_reg_rules = 4,
151 .alpha2 = "99",
152 .reg_rules = {
153 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
154 REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
155 REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
156 REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
157 }
158};
159
160static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = {
161 .n_reg_rules = 2,
162 .alpha2 = "99",
163 .reg_rules = {
164 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
165 REG_RULE(5725-10, 5850+10, 40, 0, 30,
8fe02e16 166 NL80211_RRF_NO_IR),
4a5af9c2
LR		 167 }
168};
169
26b0e411
JB		 170static const struct ieee80211_regdomain *hwsim_world_regdom_custom[] = {
171 &hwsim_world_regdom_custom_01,
172 &hwsim_world_regdom_custom_02,
173};
174
8aa21e6f
JB		 175struct hwsim_vif_priv {
176 u32 magic;
fc6971d4
JM		 177 u8 bssid[ETH_ALEN];
178 bool assoc;
0bb861e6 179 bool bcn_en;
fc6971d4 180 u16 aid;
8aa21e6f
JB		 181};
182
183#define HWSIM_VIF_MAGIC 0x69537748
184
185static inline void hwsim_check_magic(struct ieee80211_vif *vif)
186{
187 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
e8261171
JB		 188 WARN(vp->magic != HWSIM_VIF_MAGIC,
189 "Invalid VIF (%p) magic %#x, %pM, %d/%d\n",
190 vif, vp->magic, vif->addr, vif->type, vif->p2p);
8aa21e6f
JB		 191}
192
193static inline void hwsim_set_magic(struct ieee80211_vif *vif)
194{
195 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
196 vp->magic = HWSIM_VIF_MAGIC;
197}
198
199static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
200{
201 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
202 vp->magic = 0;
203}
acc1e7a3 204
81c06523
JB		 205struct hwsim_sta_priv {
206 u32 magic;
207};
208
e8261171 209#define HWSIM_STA_MAGIC 0x6d537749
81c06523
JB		 210
211static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
212{
213 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
5d6924ea 214 WARN_ON(sp->magic != HWSIM_STA_MAGIC);
81c06523
JB		 215}
216
217static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
218{
219 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
5d6924ea 220 sp->magic = HWSIM_STA_MAGIC;
81c06523
JB		 221}
222
223static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
224{
225 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
226 sp->magic = 0;
227}
228
e8261171
JB		 229struct hwsim_chanctx_priv {
230 u32 magic;
231};
232
233#define HWSIM_CHANCTX_MAGIC 0x6d53774a
234
235static inline void hwsim_check_chanctx_magic(struct ieee80211_chanctx_conf *c)
236{
237 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
238 WARN_ON(cp->magic != HWSIM_CHANCTX_MAGIC);
239}
240
241static inline void hwsim_set_chanctx_magic(struct ieee80211_chanctx_conf *c)
242{
243 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
244 cp->magic = HWSIM_CHANCTX_MAGIC;
245}
246
247static inline void hwsim_clear_chanctx_magic(struct ieee80211_chanctx_conf *c)
248{
249 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
250 cp->magic = 0;
251}
252
acc1e7a3
JM		 253static struct class *hwsim_class;
254
acc1e7a3
JM		 255static struct net_device *hwsim_mon; /* global monitor netdev */
256
22cad735
LR		 257#define CHAN2G(_freq) { \
258 .band = IEEE80211_BAND_2GHZ, \
259 .center_freq = (_freq), \
260 .hw_value = (_freq), \
261 .max_power = 20, \
262}
263
264#define CHAN5G(_freq) { \
265 .band = IEEE80211_BAND_5GHZ, \
266 .center_freq = (_freq), \
267 .hw_value = (_freq), \
268 .max_power = 20, \
269}
270
271static const struct ieee80211_channel hwsim_channels_2ghz[] = {
272 CHAN2G(2412), /* Channel 1 */
273 CHAN2G(2417), /* Channel 2 */
274 CHAN2G(2422), /* Channel 3 */
275 CHAN2G(2427), /* Channel 4 */
276 CHAN2G(2432), /* Channel 5 */
277 CHAN2G(2437), /* Channel 6 */
278 CHAN2G(2442), /* Channel 7 */
279 CHAN2G(2447), /* Channel 8 */
280 CHAN2G(2452), /* Channel 9 */
281 CHAN2G(2457), /* Channel 10 */
282 CHAN2G(2462), /* Channel 11 */
283 CHAN2G(2467), /* Channel 12 */
284 CHAN2G(2472), /* Channel 13 */
285 CHAN2G(2484), /* Channel 14 */
286};
acc1e7a3 287
22cad735
LR		 288static const struct ieee80211_channel hwsim_channels_5ghz[] = {
289 CHAN5G(5180), /* Channel 36 */
290 CHAN5G(5200), /* Channel 40 */
291 CHAN5G(5220), /* Channel 44 */
292 CHAN5G(5240), /* Channel 48 */
293
294 CHAN5G(5260), /* Channel 52 */
295 CHAN5G(5280), /* Channel 56 */
296 CHAN5G(5300), /* Channel 60 */
297 CHAN5G(5320), /* Channel 64 */
298
299 CHAN5G(5500), /* Channel 100 */
300 CHAN5G(5520), /* Channel 104 */
301 CHAN5G(5540), /* Channel 108 */
302 CHAN5G(5560), /* Channel 112 */
303 CHAN5G(5580), /* Channel 116 */
304 CHAN5G(5600), /* Channel 120 */
305 CHAN5G(5620), /* Channel 124 */
306 CHAN5G(5640), /* Channel 128 */
307 CHAN5G(5660), /* Channel 132 */
308 CHAN5G(5680), /* Channel 136 */
309 CHAN5G(5700), /* Channel 140 */
310
311 CHAN5G(5745), /* Channel 149 */
312 CHAN5G(5765), /* Channel 153 */
313 CHAN5G(5785), /* Channel 157 */
314 CHAN5G(5805), /* Channel 161 */
315 CHAN5G(5825), /* Channel 165 */
acc1e7a3
JM		 316};
317
318static const struct ieee80211_rate hwsim_rates[] = {
319 { .bitrate = 10 },
320 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
321 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
322 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
323 { .bitrate = 60 },
324 { .bitrate = 90 },
325 { .bitrate = 120 },
326 { .bitrate = 180 },
327 { .bitrate = 240 },
328 { .bitrate = 360 },
329 { .bitrate = 480 },
330 { .bitrate = 540 }
331};
332
de0421d5
JB		 333static const struct ieee80211_iface_limit hwsim_if_limits[] = {
334 { .max = 1, .types = BIT(NL80211_IFTYPE_ADHOC) },
335 { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) |
336 BIT(NL80211_IFTYPE_P2P_CLIENT) |
337#ifdef CONFIG_MAC80211_MESH
338 BIT(NL80211_IFTYPE_MESH_POINT) |
339#endif
340 BIT(NL80211_IFTYPE_AP) |
341 BIT(NL80211_IFTYPE_P2P_GO) },
8c66a3d9
JB		 342 /* must be last, see hwsim_if_comb */
343 { .max = 1, .types = BIT(NL80211_IFTYPE_P2P_DEVICE) }
de0421d5
JB		 344};
345
346static const struct ieee80211_iface_limit hwsim_if_dfs_limits[] = {
347 { .max = 8, .types = BIT(NL80211_IFTYPE_AP) },
348};
349
350static const struct ieee80211_iface_combination hwsim_if_comb[] = {
8c66a3d9
JB		 351 {
352 .limits = hwsim_if_limits,
353 /* remove the last entry which is P2P_DEVICE */
354 .n_limits = ARRAY_SIZE(hwsim_if_limits) - 1,
355 .max_interfaces = 2048,
356 .num_different_channels = 1,
357 },
358 {
359 .limits = hwsim_if_dfs_limits,
360 .n_limits = ARRAY_SIZE(hwsim_if_dfs_limits),
361 .max_interfaces = 8,
362 .num_different_channels = 1,
363 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
364 BIT(NL80211_CHAN_WIDTH_20) |
365 BIT(NL80211_CHAN_WIDTH_40) |
366 BIT(NL80211_CHAN_WIDTH_80) |
367 BIT(NL80211_CHAN_WIDTH_160),
368 }
369};
370
371static const struct ieee80211_iface_combination hwsim_if_comb_p2p_dev[] = {
de0421d5
JB		 372 {
373 .limits = hwsim_if_limits,
374 .n_limits = ARRAY_SIZE(hwsim_if_limits),
375 .max_interfaces = 2048,
376 .num_different_channels = 1,
377 },
378 {
379 .limits = hwsim_if_dfs_limits,
380 .n_limits = ARRAY_SIZE(hwsim_if_dfs_limits),
381 .max_interfaces = 8,
382 .num_different_channels = 1,
383 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
384 BIT(NL80211_CHAN_WIDTH_20) |
385 BIT(NL80211_CHAN_WIDTH_40) |
386 BIT(NL80211_CHAN_WIDTH_80) |
387 BIT(NL80211_CHAN_WIDTH_160),
388 }
389};
390
0e057d73
JB		 391static spinlock_t hwsim_radio_lock;
392static struct list_head hwsim_radios;
2d68992b 393static int hwsim_radio_idx;
0e057d73 394
de0421d5
JB		 395static struct platform_driver mac80211_hwsim_driver = {
396 .driver = {
397 .name = "mac80211_hwsim",
398 .owner = THIS_MODULE,
399 },
400};
0e057d73 401
acc1e7a3 402struct mac80211_hwsim_data {
0e057d73
JB		 403 struct list_head list;
404 struct ieee80211_hw *hw;
acc1e7a3 405 struct device *dev;
1b083ea4 406 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
22cad735
LR		 407 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
408 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
acc1e7a3 409 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
38ed5048 410 struct ieee80211_iface_combination if_combination;
acc1e7a3 411
ef15aac6 412 struct mac_address addresses[2];
bc791098 413 int channels, idx;
361c3e04 414 bool use_chanctx;
e9ed49bf
JR		 415 bool destroy_on_close;
416 struct work_struct destroy_work;
417 u32 portid;
ef15aac6 418
e8261171
JB		 419 struct ieee80211_channel *tmp_chan;
420 struct delayed_work roc_done;
421 struct delayed_work hw_scan;
422 struct cfg80211_scan_request *hw_scan_request;
423 struct ieee80211_vif *hw_scan_vif;
424 int scan_chan_idx;
425
acc1e7a3 426 struct ieee80211_channel *channel;
01e59e46 427 u64 beacon_int /* beacon interval in us */;
acc1e7a3 428 unsigned int rx_filter;
f74cb0f7
LR		 429 bool started, idle, scanning;
430 struct mutex mutex;
01e59e46 431 struct tasklet_hrtimer beacon_timer;
fc6971d4
JM		 432 enum ps_mode {
433 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
434 } ps;
435 bool ps_poll_pending;
436 struct dentry *debugfs;
73606d00 437
7882513b 438 struct sk_buff_head pending; /* packets pending */
73606d00
DW		 439 /*
440 * Only radios in the same group can communicate together (the
441 * channel has to match too). Each bit represents a group. A
9ebac15f 442 * radio can be in more than one group.
73606d00
DW		 443 */
444 u64 group;
bdd7bd16
BG		 445
446 int power_level;
2f40b940
JC		 447
448 /* difference between this hw's clock and the real clock, in usecs */
45034bfb 449 s64 tsf_offset;
c51f8783 450 s64 bcn_delta;
b66851c3
TP		 451 /* absolute beacon transmission time. Used to cover up "tx" delay. */
452 u64 abs_bcn_ts;
2155c3f8
BG		 453
454 /* Stats */
455 u64 tx_pkts;
456 u64 rx_pkts;
457 u64 tx_bytes;
458 u64 rx_bytes;
459 u64 tx_dropped;
460 u64 tx_failed;
acc1e7a3
JM		 461};
462
463
464struct hwsim_radiotap_hdr {
465 struct ieee80211_radiotap_header hdr;
2f40b940 466 __le64 rt_tsft;
acc1e7a3
JM		 467 u8 rt_flags;
468 u8 rt_rate;
469 __le16 rt_channel;
470 __le16 rt_chbitmask;
ba2d3587 471} __packed;
acc1e7a3 472
76a56eb3
JM		 473struct hwsim_radiotap_ack_hdr {
474 struct ieee80211_radiotap_header hdr;
475 u8 rt_flags;
476 u8 pad;
477 __le16 rt_channel;
478 __le16 rt_chbitmask;
479} __packed;
480
7882513b
JL		 481/* MAC80211_HWSIM netlinf family */
482static struct genl_family hwsim_genl_family = {
483 .id = GENL_ID_GENERATE,
484 .hdrsize = 0,
485 .name = "MAC80211_HWSIM",
486 .version = 1,
487 .maxattr = HWSIM_ATTR_MAX,
488};
489
490/* MAC80211_HWSIM netlink policy */
491
205d2429 492static const struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
9ddd12af
JB		 493 [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
494 [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
7882513b
JL		 495 [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
496 .len = IEEE80211_MAX_DATA_LEN },
497 [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
498 [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
499 [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
500 [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC,
9ddd12af
JB		 501 .len = IEEE80211_TX_MAX_RATES *
502 sizeof(struct hwsim_tx_rate)},
7882513b 503 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
bc791098
JB		 504 [HWSIM_ATTR_CHANNELS] = { .type = NLA_U32 },
505 [HWSIM_ATTR_RADIO_ID] = { .type = NLA_U32 },
26b0e411
JB		 506 [HWSIM_ATTR_REG_HINT_ALPHA2] = { .type = NLA_STRING, .len = 2 },
507 [HWSIM_ATTR_REG_CUSTOM_REG] = { .type = NLA_U32 },
508 [HWSIM_ATTR_REG_STRICT_REG] = { .type = NLA_FLAG },
8c66a3d9 509 [HWSIM_ATTR_SUPPORT_P2P_DEVICE] = { .type = NLA_FLAG },
e9ed49bf 510 [HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE] = { .type = NLA_FLAG },
7882513b 511};
acc1e7a3 512
de0421d5
JB		 513static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
514 struct sk_buff *skb,
515 struct ieee80211_channel *chan);
516
517/* sysfs attributes */
518static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
519{
520 struct mac80211_hwsim_data *data = dat;
521 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
522 struct sk_buff *skb;
523 struct ieee80211_pspoll *pspoll;
524
525 if (!vp->assoc)
526 return;
527
528 wiphy_debug(data->hw->wiphy,
529 "%s: send PS-Poll to %pM for aid %d\n",
530 __func__, vp->bssid, vp->aid);
531
532 skb = dev_alloc_skb(sizeof(*pspoll));
533 if (!skb)
534 return;
535 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
536 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
537 IEEE80211_STYPE_PSPOLL |
538 IEEE80211_FCTL_PM);
539 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
540 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
541 memcpy(pspoll->ta, mac, ETH_ALEN);
542
543 rcu_read_lock();
544 mac80211_hwsim_tx_frame(data->hw, skb,
545 rcu_dereference(vif->chanctx_conf)->def.chan);
546 rcu_read_unlock();
547}
548
549static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
550 struct ieee80211_vif *vif, int ps)
551{
552 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
553 struct sk_buff *skb;
554 struct ieee80211_hdr *hdr;
555
556 if (!vp->assoc)
557 return;
558
559 wiphy_debug(data->hw->wiphy,
560 "%s: send data::nullfunc to %pM ps=%d\n",
561 __func__, vp->bssid, ps);
562
563 skb = dev_alloc_skb(sizeof(*hdr));
564 if (!skb)
565 return;
566 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
567 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
568 IEEE80211_STYPE_NULLFUNC |
569 (ps ? IEEE80211_FCTL_PM : 0));
570 hdr->duration_id = cpu_to_le16(0);
571 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
572 memcpy(hdr->addr2, mac, ETH_ALEN);
573 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
574
575 rcu_read_lock();
576 mac80211_hwsim_tx_frame(data->hw, skb,
577 rcu_dereference(vif->chanctx_conf)->def.chan);
578 rcu_read_unlock();
579}
580
581
582static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
583 struct ieee80211_vif *vif)
584{
585 struct mac80211_hwsim_data *data = dat;
586 hwsim_send_nullfunc(data, mac, vif, 1);
587}
588
589static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
590 struct ieee80211_vif *vif)
591{
592 struct mac80211_hwsim_data *data = dat;
593 hwsim_send_nullfunc(data, mac, vif, 0);
594}
595
596static int hwsim_fops_ps_read(void *dat, u64 *val)
597{
598 struct mac80211_hwsim_data *data = dat;
599 *val = data->ps;
600 return 0;
601}
602
603static int hwsim_fops_ps_write(void *dat, u64 val)
604{
605 struct mac80211_hwsim_data *data = dat;
606 enum ps_mode old_ps;
607
608 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
609 val != PS_MANUAL_POLL)
610 return -EINVAL;
611
612 old_ps = data->ps;
613 data->ps = val;
614
615 if (val == PS_MANUAL_POLL) {
616 ieee80211_iterate_active_interfaces(data->hw,
617 IEEE80211_IFACE_ITER_NORMAL,
618 hwsim_send_ps_poll, data);
619 data->ps_poll_pending = true;
620 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
621 ieee80211_iterate_active_interfaces(data->hw,
622 IEEE80211_IFACE_ITER_NORMAL,
623 hwsim_send_nullfunc_ps,
624 data);
625 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
626 ieee80211_iterate_active_interfaces(data->hw,
627 IEEE80211_IFACE_ITER_NORMAL,
628 hwsim_send_nullfunc_no_ps,
629 data);
630 }
631
632 return 0;
633}
634
635DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
636 "%llu\n");
637
638static int hwsim_write_simulate_radar(void *dat, u64 val)
639{
640 struct mac80211_hwsim_data *data = dat;
641
642 ieee80211_radar_detected(data->hw);
643
644 return 0;
645}
646
647DEFINE_SIMPLE_ATTRIBUTE(hwsim_simulate_radar, NULL,
648 hwsim_write_simulate_radar, "%llu\n");
649
650static int hwsim_fops_group_read(void *dat, u64 *val)
651{
652 struct mac80211_hwsim_data *data = dat;
653 *val = data->group;
654 return 0;
655}
656
657static int hwsim_fops_group_write(void *dat, u64 val)
658{
659 struct mac80211_hwsim_data *data = dat;
660 data->group = val;
661 return 0;
662}
663
664DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
665 hwsim_fops_group_read, hwsim_fops_group_write,
666 "%llx\n");
667
d0cf9c0d
SH		 668static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
669 struct net_device *dev)
acc1e7a3
JM		 670{
671 /* TODO: allow packet injection */
672 dev_kfree_skb(skb);
6ed10654 673 return NETDEV_TX_OK;
acc1e7a3
JM		 674}
675
b66851c3
TP		 676static inline u64 mac80211_hwsim_get_tsf_raw(void)
677{
678 return ktime_to_us(ktime_get_real());
679}
680
2f40b940
JC		 681static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
682{
b66851c3 683 u64 now = mac80211_hwsim_get_tsf_raw();
2f40b940
JC		 684 return cpu_to_le64(now + data->tsf_offset);
685}
acc1e7a3 686
12ce8ba3 687static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
b66851c3 688 struct ieee80211_vif *vif)
12ce8ba3
JC		 689{
690 struct mac80211_hwsim_data *data = hw->priv;
691 return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
692}
693
694static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
695 struct ieee80211_vif *vif, u64 tsf)
696{
697 struct mac80211_hwsim_data *data = hw->priv;
45034bfb 698 u64 now = mac80211_hwsim_get_tsf(hw, vif);
c51f8783 699 u32 bcn_int = data->beacon_int;
5d26b508 700 u64 delta = abs64(tsf - now);
45034bfb 701
c51f8783 702 /* adjust after beaconing with new timestamp at old TBTT */
5d26b508
AB		 703 if (tsf > now) {
704 data->tsf_offset += delta;
705 data->bcn_delta = do_div(delta, bcn_int);
706 } else {
707 data->tsf_offset -= delta;
708 data->bcn_delta = -do_div(delta, bcn_int);
709 }
12ce8ba3
JC		 710}
711
acc1e7a3 712static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
e8261171
JB		 713 struct sk_buff *tx_skb,
714 struct ieee80211_channel *chan)
acc1e7a3
JM		 715{
716 struct mac80211_hwsim_data *data = hw->priv;
717 struct sk_buff *skb;
718 struct hwsim_radiotap_hdr *hdr;
719 u16 flags;
720 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
721 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
722
723 if (!netif_running(hwsim_mon))
724 return;
725
726 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
727 if (skb == NULL)
728 return;
729
730 hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
731 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
732 hdr->hdr.it_pad = 0;
733 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
f248f105
JM		 734 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
735 (1 << IEEE80211_RADIOTAP_RATE) |
2f40b940 736 (1 << IEEE80211_RADIOTAP_TSFT) |
f248f105 737 (1 << IEEE80211_RADIOTAP_CHANNEL));
2f40b940 738 hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
acc1e7a3
JM		 739 hdr->rt_flags = 0;
740 hdr->rt_rate = txrate->bitrate / 5;
e8261171 741 hdr->rt_channel = cpu_to_le16(chan->center_freq);
acc1e7a3
JM		 742 flags = IEEE80211_CHAN_2GHZ;
743 if (txrate->flags & IEEE80211_RATE_ERP_G)
744 flags |= IEEE80211_CHAN_OFDM;
745 else
746 flags |= IEEE80211_CHAN_CCK;
747 hdr->rt_chbitmask = cpu_to_le16(flags);
748
749 skb->dev = hwsim_mon;
750 skb_set_mac_header(skb, 0);
751 skb->ip_summed = CHECKSUM_UNNECESSARY;
752 skb->pkt_type = PACKET_OTHERHOST;
f248f105 753 skb->protocol = htons(ETH_P_802_2);
acc1e7a3
JM		 754 memset(skb->cb, 0, sizeof(skb->cb));
755 netif_rx(skb);
756}
757
758
e8261171
JB		 759static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
760 const u8 *addr)
6c085227 761{
6c085227 762 struct sk_buff *skb;
76a56eb3 763 struct hwsim_radiotap_ack_hdr *hdr;
6c085227
JM		 764 u16 flags;
765 struct ieee80211_hdr *hdr11;
766
767 if (!netif_running(hwsim_mon))
768 return;
769
770 skb = dev_alloc_skb(100);
771 if (skb == NULL)
772 return;
773
76a56eb3 774 hdr = (struct hwsim_radiotap_ack_hdr *) skb_put(skb, sizeof(*hdr));
6c085227
JM		 775 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
776 hdr->hdr.it_pad = 0;
777 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
778 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
779 (1 << IEEE80211_RADIOTAP_CHANNEL));
780 hdr->rt_flags = 0;
76a56eb3 781 hdr->pad = 0;
e8261171 782 hdr->rt_channel = cpu_to_le16(chan->center_freq);
6c085227
JM		 783 flags = IEEE80211_CHAN_2GHZ;
784 hdr->rt_chbitmask = cpu_to_le16(flags);
785
786 hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
787 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
788 IEEE80211_STYPE_ACK);
789 hdr11->duration_id = cpu_to_le16(0);
790 memcpy(hdr11->addr1, addr, ETH_ALEN);
791
792 skb->dev = hwsim_mon;
793 skb_set_mac_header(skb, 0);
794 skb->ip_summed = CHECKSUM_UNNECESSARY;
795 skb->pkt_type = PACKET_OTHERHOST;
796 skb->protocol = htons(ETH_P_802_2);
797 memset(skb->cb, 0, sizeof(skb->cb));
798 netif_rx(skb);
799}
800
3283e286
JB		 801struct mac80211_hwsim_addr_match_data {
802 u8 addr[ETH_ALEN];
803 bool ret;
804};
805
806static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
807 struct ieee80211_vif *vif)
808{
809 struct mac80211_hwsim_addr_match_data *md = data;
810
811 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
812 md->ret = true;
813}
814
815static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
816 const u8 *addr)
817{
818 struct mac80211_hwsim_addr_match_data md = {
819 .ret = false,
820 };
821
822 memcpy(md.addr, addr, ETH_ALEN);
823
824 ieee80211_iterate_active_interfaces_atomic(data->hw,
825 IEEE80211_IFACE_ITER_NORMAL,
826 mac80211_hwsim_addr_iter,
827 &md);
828
829 return md.ret;
830}
6c085227 831
fc6971d4
JM		 832static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
833 struct sk_buff *skb)
834{
835 switch (data->ps) {
836 case PS_DISABLED:
837 return true;
838 case PS_ENABLED:
839 return false;
840 case PS_AUTO_POLL:
841 /* TODO: accept (some) Beacons by default and other frames only
842 * if pending PS-Poll has been sent */
843 return true;
844 case PS_MANUAL_POLL:
845 /* Allow unicast frames to own address if there is a pending
846 * PS-Poll */
847 if (data->ps_poll_pending &&
3283e286 848 mac80211_hwsim_addr_match(data, skb->data + 4)) {
fc6971d4
JM		 849 data->ps_poll_pending = false;
850 return true;
851 }
852 return false;
853 }
854
855 return true;
856}
857
7882513b
JL		 858static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
859 struct sk_buff *my_skb,
15e47304 860 int dst_portid)
7882513b
JL		 861{
862 struct sk_buff *skb;
863 struct mac80211_hwsim_data *data = hw->priv;
864 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
865 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
866 void *msg_head;
867 unsigned int hwsim_flags = 0;
868 int i;
869 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
870
7882513b
JL		 871 if (data->ps != PS_DISABLED)
872 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
873 /* If the queue contains MAX_QUEUE skb's drop some */
874 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
875 /* Droping until WARN_QUEUE level */
2155c3f8 876 while (skb_queue_len(&data->pending) >= WARN_QUEUE) {
b7bc9679 877 ieee80211_free_txskb(hw, skb_dequeue(&data->pending));
2155c3f8
BG		 878 data->tx_dropped++;
879 }
7882513b
JL		 880 }
881
58050fce 882 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
7882513b
JL		 883 if (skb == NULL)
884 goto nla_put_failure;
885
886 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
887 HWSIM_CMD_FRAME);
888 if (msg_head == NULL) {
889 printk(KERN_DEBUG "mac80211_hwsim: problem with msg_head\n");
890 goto nla_put_failure;
891 }
892
633c9389 893 if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
9ddd12af 894 ETH_ALEN, data->addresses[1].addr))
633c9389 895 goto nla_put_failure;
265dc7f0 896
7882513b 897 /* We get the skb->data */
633c9389
DM		 898 if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
899 goto nla_put_failure;
7882513b
JL		 900
901 /* We get the flags for this transmission, and we translate them to
902 wmediumd flags */
903
904 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
905 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
906
907 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
908 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
909
633c9389
DM		 910 if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
911 goto nla_put_failure;
7882513b 912
4f86ed8f
BG		 913 if (nla_put_u32(skb, HWSIM_ATTR_FREQ, data->channel->center_freq))
914 goto nla_put_failure;
915
7882513b
JL		 916 /* We get the tx control (rate and retries) info*/
917
918 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
919 tx_attempts[i].idx = info->status.rates[i].idx;
920 tx_attempts[i].count = info->status.rates[i].count;
921 }
922
633c9389
DM		 923 if (nla_put(skb, HWSIM_ATTR_TX_INFO,
924 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
925 tx_attempts))
926 goto nla_put_failure;
7882513b
JL		 927
928 /* We create a cookie to identify this skb */
633c9389
DM		 929 if (nla_put_u64(skb, HWSIM_ATTR_COOKIE, (unsigned long) my_skb))
930 goto nla_put_failure;
7882513b
JL		 931
932 genlmsg_end(skb, msg_head);
15e47304 933 genlmsg_unicast(&init_net, skb, dst_portid);
7882513b
JL		 934
935 /* Enqueue the packet */
936 skb_queue_tail(&data->pending, my_skb);
2155c3f8
BG		 937 data->tx_pkts++;
938 data->tx_bytes += my_skb->len;
7882513b
JL		 939 return;
940
941nla_put_failure:
c393862f 942 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
b7bc9679 943 ieee80211_free_txskb(hw, my_skb);
2155c3f8 944 data->tx_failed++;
7882513b
JL		 945}
946
e8261171
JB		 947static bool hwsim_chans_compat(struct ieee80211_channel *c1,
948 struct ieee80211_channel *c2)
949{
950 if (!c1 || !c2)
951 return false;
952
953 return c1->center_freq == c2->center_freq;
954}
955
956struct tx_iter_data {
957 struct ieee80211_channel *channel;
958 bool receive;
959};
960
961static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
962 struct ieee80211_vif *vif)
963{
964 struct tx_iter_data *data = _data;
965
966 if (!vif->chanctx_conf)
967 return;
968
969 if (!hwsim_chans_compat(data->channel,
4bf88530 970 rcu_dereference(vif->chanctx_conf)->def.chan))
e8261171
JB		 971 return;
972
973 data->receive = true;
974}
975
7882513b 976static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
e8261171
JB		 977 struct sk_buff *skb,
978 struct ieee80211_channel *chan)
acc1e7a3 979{
0e057d73
JB		 980 struct mac80211_hwsim_data *data = hw->priv, *data2;
981 bool ack = false;
e36cfdc9 982 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
acc1e7a3 983 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
e36cfdc9 984 struct ieee80211_rx_status rx_status;
b66851c3 985 u64 now;
acc1e7a3
JM		 986
987 memset(&rx_status, 0, sizeof(rx_status));
f4bda337 988 rx_status.flag |= RX_FLAG_MACTIME_START;
e8261171
JB		 989 rx_status.freq = chan->center_freq;
990 rx_status.band = chan->band;
dad6330d
KB		 991 if (info->control.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) {
992 rx_status.rate_idx =
993 ieee80211_rate_get_vht_mcs(&info->control.rates[0]);
994 rx_status.vht_nss =
995 ieee80211_rate_get_vht_nss(&info->control.rates[0]);
996 rx_status.flag |= RX_FLAG_VHT;
997 } else {
998 rx_status.rate_idx = info->control.rates[0].idx;
999 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
1000 rx_status.flag |= RX_FLAG_HT;
1001 }
281ed297
JM		 1002 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
1003 rx_status.flag |= RX_FLAG_40MHZ;
1004 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
1005 rx_status.flag |= RX_FLAG_SHORT_GI;
4b14c96d 1006 /* TODO: simulate real signal strength (and optional packet loss) */
bdd7bd16 1007 rx_status.signal = data->power_level - 50;
acc1e7a3 1008
fc6971d4
JM		 1009 if (data->ps != PS_DISABLED)
1010 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1011
90e3012e
JB		 1012 /* release the skb's source info */
1013 skb_orphan(skb);
c0acf38e 1014 skb_dst_drop(skb);
90e3012e
JB		 1015 skb->mark = 0;
1016 secpath_reset(skb);
1017 nf_reset(skb);
1018
b66851c3
TP		 1019 /*
1020 * Get absolute mactime here so all HWs RX at the "same time", and
1021 * absolute TX time for beacon mactime so the timestamp matches.
1022 * Giving beacons a different mactime than non-beacons looks messy, but
1023 * it helps the Toffset be exact and a ~10us mactime discrepancy
1024 * probably doesn't really matter.
1025 */
1026 if (ieee80211_is_beacon(hdr->frame_control) ||
1027 ieee80211_is_probe_resp(hdr->frame_control))
1028 now = data->abs_bcn_ts;
1029 else
1030 now = mac80211_hwsim_get_tsf_raw();
1031
acc1e7a3 1032 /* Copy skb to all enabled radios that are on the current frequency */
0e057d73
JB		 1033 spin_lock(&hwsim_radio_lock);
1034 list_for_each_entry(data2, &hwsim_radios, list) {
acc1e7a3 1035 struct sk_buff *nskb;
e8261171
JB		 1036 struct tx_iter_data tx_iter_data = {
1037 .receive = false,
1038 .channel = chan,
1039 };
acc1e7a3 1040
0e057d73 1041 if (data == data2)
acc1e7a3 1042 continue;
0e057d73 1043
e8261171
JB		 1044 if (!data2->started || (data2->idle && !data2->tmp_chan) ||
1045 !hwsim_ps_rx_ok(data2, skb))
acc1e7a3
JM		 1046 continue;
1047
e8261171
JB		 1048 if (!(data->group & data2->group))
1049 continue;
1050
1051 if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
1052 !hwsim_chans_compat(chan, data2->channel)) {
1053 ieee80211_iterate_active_interfaces_atomic(
8b2c9824
JB		 1054 data2->hw, IEEE80211_IFACE_ITER_NORMAL,
1055 mac80211_hwsim_tx_iter, &tx_iter_data);
e8261171
JB		 1056 if (!tx_iter_data.receive)
1057 continue;
1058 }
1059
90b9e446
JB		 1060 /*
1061 * reserve some space for our vendor and the normal
1062 * radiotap header, since we're copying anyway
1063 */
a357d7f9
JB		 1064 if (skb->len < PAGE_SIZE && paged_rx) {
1065 struct page *page = alloc_page(GFP_ATOMIC);
1066
1067 if (!page)
1068 continue;
1069
1070 nskb = dev_alloc_skb(128);
1071 if (!nskb) {
1072 __free_page(page);
1073 continue;
1074 }
1075
1076 memcpy(page_address(page), skb->data, skb->len);
1077 skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
1078 } else {
1079 nskb = skb_copy(skb, GFP_ATOMIC);
1080 if (!nskb)
1081 continue;
1082 }
acc1e7a3 1083
265dc7f0 1084 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
0e057d73 1085 ack = true;
f483ad25 1086
b66851c3 1087 rx_status.mactime = now + data2->tsf_offset;
90b9e446 1088
f1d58c25 1089 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
2155c3f8
BG		 1090 data2->rx_pkts++;
1091 data2->rx_bytes += nskb->len;
f1d58c25 1092 ieee80211_rx_irqsafe(data2->hw, nskb);
acc1e7a3 1093 }
0e057d73 1094 spin_unlock(&hwsim_radio_lock);
acc1e7a3 1095
e36cfdc9
JM		 1096 return ack;
1097}
1098
36323f81
TH		 1099static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
1100 struct ieee80211_tx_control *control,
1101 struct sk_buff *skb)
e36cfdc9 1102{
e8261171
JB		 1103 struct mac80211_hwsim_data *data = hw->priv;
1104 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1105 struct ieee80211_chanctx_conf *chanctx_conf;
1106 struct ieee80211_channel *channel;
0e057d73 1107 bool ack;
15e47304 1108 u32 _portid;
e36cfdc9 1109
e8261171 1110 if (WARN_ON(skb->len < 10)) {
e36cfdc9 1111 /* Should not happen; just a sanity check for addr1 use */
fe0f3cd2 1112 ieee80211_free_txskb(hw, skb);
7bb45683 1113 return;
e36cfdc9
JM		 1114 }
1115
361c3e04 1116 if (!data->use_chanctx) {
e8261171
JB		 1117 channel = data->channel;
1118 } else if (txi->hw_queue == 4) {
1119 channel = data->tmp_chan;
1120 } else {
1121 chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf);
1122 if (chanctx_conf)
4bf88530 1123 channel = chanctx_conf->def.chan;
e8261171
JB		 1124 else
1125 channel = NULL;
1126 }
1127
1128 if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
fe0f3cd2 1129 ieee80211_free_txskb(hw, skb);
e8261171
JB		 1130 return;
1131 }
1132
1133 if (data->idle && !data->tmp_chan) {
1134 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
fe0f3cd2 1135 ieee80211_free_txskb(hw, skb);
e8261171
JB		 1136 return;
1137 }
1138
1139 if (txi->control.vif)
1140 hwsim_check_magic(txi->control.vif);
1141 if (control->sta)
1142 hwsim_check_sta_magic(control->sta);
1143
81338410 1144 if (hw->flags & IEEE80211_HW_SUPPORTS_RC_TABLE)
1eb32179
KB		 1145 ieee80211_get_tx_rates(txi->control.vif, control->sta, skb,
1146 txi->control.rates,
1147 ARRAY_SIZE(txi->control.rates));
e8261171 1148
1eb32179 1149 txi->rate_driver_data[0] = channel;
e8261171
JB		 1150 mac80211_hwsim_monitor_rx(hw, skb, channel);
1151
7882513b 1152 /* wmediumd mode check */
15e47304 1153 _portid = ACCESS_ONCE(wmediumd_portid);
7882513b 1154
15e47304
EB		 1155 if (_portid)
1156 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
7882513b
JL		 1157
1158 /* NO wmediumd detected, perfect medium simulation */
2155c3f8
BG		 1159 data->tx_pkts++;
1160 data->tx_bytes += skb->len;
e8261171 1161 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
7882513b 1162
6c085227
JM		 1163 if (ack && skb->len >= 16) {
1164 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
e8261171 1165 mac80211_hwsim_monitor_ack(channel, hdr->addr2);
6c085227 1166 }
e36cfdc9 1167
e6a9854b 1168 ieee80211_tx_info_clear_status(txi);
2a4ffa4c
JC		 1169
1170 /* frame was transmitted at most favorable rate at first attempt */
1171 txi->control.rates[0].count = 1;
1172 txi->control.rates[1].idx = -1;
1173
e6a9854b
JB		 1174 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
1175 txi->flags |= IEEE80211_TX_STAT_ACK;
acc1e7a3 1176 ieee80211_tx_status_irqsafe(hw, skb);
acc1e7a3
JM		 1177}
1178
1179
1180static int mac80211_hwsim_start(struct ieee80211_hw *hw)
1181{
1182 struct mac80211_hwsim_data *data = hw->priv;
c96c31e4 1183 wiphy_debug(hw->wiphy, "%s\n", __func__);
3db1cd5c 1184 data->started = true;
acc1e7a3
JM		 1185 return 0;
1186}
1187
1188
1189static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
1190{
1191 struct mac80211_hwsim_data *data = hw->priv;
3db1cd5c 1192 data->started = false;
01e59e46 1193 tasklet_hrtimer_cancel(&data->beacon_timer);
c96c31e4 1194 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 1195}
1196
1197
1198static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
1ed32e4f 1199 struct ieee80211_vif *vif)
acc1e7a3 1200{
c96c31e4 1201 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 1202 __func__, ieee80211_vif_type_p2p(vif),
1203 vif->addr);
1ed32e4f 1204 hwsim_set_magic(vif);
e8261171
JB		 1205
1206 vif->cab_queue = 0;
1207 vif->hw_queue[IEEE80211_AC_VO] = 0;
1208 vif->hw_queue[IEEE80211_AC_VI] = 1;
1209 vif->hw_queue[IEEE80211_AC_BE] = 2;
1210 vif->hw_queue[IEEE80211_AC_BK] = 3;
1211
acc1e7a3
JM		 1212 return 0;
1213}
1214
1215
c35d0270
JB		 1216static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
1217 struct ieee80211_vif *vif,
2ca27bcf
JB		 1218 enum nl80211_iftype newtype,
1219 bool newp2p)
c35d0270 1220{
2ca27bcf 1221 newtype = ieee80211_iftype_p2p(newtype, newp2p);
c35d0270
JB		 1222 wiphy_debug(hw->wiphy,
1223 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
2ca27bcf
JB		 1224 __func__, ieee80211_vif_type_p2p(vif),
1225 newtype, vif->addr);
c35d0270
JB		 1226 hwsim_check_magic(vif);
1227
3eb92f6a
JB		 1228 /*
1229 * interface may change from non-AP to AP in
1230 * which case this needs to be set up again
1231 */
1232 vif->cab_queue = 0;
1233
c35d0270
JB		 1234 return 0;
1235}
1236
acc1e7a3 1237static void mac80211_hwsim_remove_interface(
1ed32e4f 1238 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
acc1e7a3 1239{
c96c31e4 1240 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 1241 __func__, ieee80211_vif_type_p2p(vif),
1242 vif->addr);
1ed32e4f
JB		 1243 hwsim_check_magic(vif);
1244 hwsim_clear_magic(vif);
acc1e7a3
JM		 1245}
1246
e8261171
JB		 1247static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
1248 struct sk_buff *skb,
1249 struct ieee80211_channel *chan)
1250{
1251 u32 _pid = ACCESS_ONCE(wmediumd_portid);
1252
81338410 1253 if (hw->flags & IEEE80211_HW_SUPPORTS_RC_TABLE) {
1eb32179
KB		 1254 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1255 ieee80211_get_tx_rates(txi->control.vif, NULL, skb,
1256 txi->control.rates,
1257 ARRAY_SIZE(txi->control.rates));
1258 }
1259
e8261171
JB		 1260 mac80211_hwsim_monitor_rx(hw, skb, chan);
1261
1262 if (_pid)
1263 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
1264
1265 mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
1266 dev_kfree_skb(skb);
1267}
acc1e7a3
JM		 1268
1269static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
1270 struct ieee80211_vif *vif)
1271{
b66851c3
TP		 1272 struct mac80211_hwsim_data *data = arg;
1273 struct ieee80211_hw *hw = data->hw;
1274 struct ieee80211_tx_info *info;
1275 struct ieee80211_rate *txrate;
1276 struct ieee80211_mgmt *mgmt;
acc1e7a3 1277 struct sk_buff *skb;
acc1e7a3 1278
8aa21e6f
JB		 1279 hwsim_check_magic(vif);
1280
55b39619 1281 if (vif->type != NL80211_IFTYPE_AP &&
2b2d7795
JB		 1282 vif->type != NL80211_IFTYPE_MESH_POINT &&
1283 vif->type != NL80211_IFTYPE_ADHOC)
acc1e7a3
JM		 1284 return;
1285
1286 skb = ieee80211_beacon_get(hw, vif);
1287 if (skb == NULL)
1288 return;
b66851c3 1289 info = IEEE80211_SKB_CB(skb);
81338410 1290 if (hw->flags & IEEE80211_HW_SUPPORTS_RC_TABLE)
1eb32179
KB		 1291 ieee80211_get_tx_rates(vif, NULL, skb,
1292 info->control.rates,
1293 ARRAY_SIZE(info->control.rates));
1294
b66851c3
TP		 1295 txrate = ieee80211_get_tx_rate(hw, info);
1296
1297 mgmt = (struct ieee80211_mgmt *) skb->data;
1298 /* fake header transmission time */
1299 data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
1300 mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
1301 data->tsf_offset +
1302 24 * 8 * 10 / txrate->bitrate);
7882513b 1303
e8261171 1304 mac80211_hwsim_tx_frame(hw, skb,
4bf88530 1305 rcu_dereference(vif->chanctx_conf)->def.chan);
0037db63
AO		 1306
1307 if (vif->csa_active && ieee80211_csa_is_complete(vif))
1308 ieee80211_csa_finish(vif);
acc1e7a3
JM		 1309}
1310
01e59e46
TP		 1311static enum hrtimer_restart
1312mac80211_hwsim_beacon(struct hrtimer *timer)
acc1e7a3 1313{
01e59e46
TP		 1314 struct mac80211_hwsim_data *data =
1315 container_of(timer, struct mac80211_hwsim_data,
1316 beacon_timer.timer);
1317 struct ieee80211_hw *hw = data->hw;
1318 u64 bcn_int = data->beacon_int;
1319 ktime_t next_bcn;
acc1e7a3 1320
4c4c671a 1321 if (!data->started)
01e59e46 1322 goto out;
acc1e7a3 1323
f248f105 1324 ieee80211_iterate_active_interfaces_atomic(
8b2c9824 1325 hw, IEEE80211_IFACE_ITER_NORMAL,
b66851c3 1326 mac80211_hwsim_beacon_tx, data);
acc1e7a3 1327
c51f8783
TP		 1328 /* beacon at new TBTT + beacon interval */
1329 if (data->bcn_delta) {
1330 bcn_int -= data->bcn_delta;
1331 data->bcn_delta = 0;
1332 }
1333
01e59e46
TP		 1334 next_bcn = ktime_add(hrtimer_get_expires(timer),
1335 ns_to_ktime(bcn_int * 1000));
1336 tasklet_hrtimer_start(&data->beacon_timer, next_bcn, HRTIMER_MODE_ABS);
1337out:
1338 return HRTIMER_NORESTART;
acc1e7a3
JM		 1339}
1340
675a0b04
KB		 1341static const char * const hwsim_chanwidths[] = {
1342 [NL80211_CHAN_WIDTH_20_NOHT] = "noht",
1343 [NL80211_CHAN_WIDTH_20] = "ht20",
1344 [NL80211_CHAN_WIDTH_40] = "ht40",
1345 [NL80211_CHAN_WIDTH_80] = "vht80",
1346 [NL80211_CHAN_WIDTH_80P80] = "vht80p80",
1347 [NL80211_CHAN_WIDTH_160] = "vht160",
0aaffa9b 1348};
acc1e7a3 1349
e8975581 1350static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
acc1e7a3
JM		 1351{
1352 struct mac80211_hwsim_data *data = hw->priv;
e8975581 1353 struct ieee80211_conf *conf = &hw->conf;
0f78231b
JB		 1354 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
1355 [IEEE80211_SMPS_AUTOMATIC] = "auto",
1356 [IEEE80211_SMPS_OFF] = "off",
1357 [IEEE80211_SMPS_STATIC] = "static",
1358 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
1359 };
1360
675a0b04
KB		 1361 if (conf->chandef.chan)
1362 wiphy_debug(hw->wiphy,
1363 "%s (freq=%d(%d - %d)/%s idle=%d ps=%d smps=%s)\n",
1364 __func__,
1365 conf->chandef.chan->center_freq,
1366 conf->chandef.center_freq1,
1367 conf->chandef.center_freq2,
1368 hwsim_chanwidths[conf->chandef.width],
1369 !!(conf->flags & IEEE80211_CONF_IDLE),
1370 !!(conf->flags & IEEE80211_CONF_PS),
1371 smps_modes[conf->smps_mode]);
1372 else
1373 wiphy_debug(hw->wiphy,
1374 "%s (freq=0 idle=%d ps=%d smps=%s)\n",
1375 __func__,
1376 !!(conf->flags & IEEE80211_CONF_IDLE),
1377 !!(conf->flags & IEEE80211_CONF_PS),
1378 smps_modes[conf->smps_mode]);
acc1e7a3 1379
70541839
JM		 1380 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1381
675a0b04 1382 data->channel = conf->chandef.chan;
e8261171 1383
361c3e04 1384 WARN_ON(data->channel && data->use_chanctx);
e8261171 1385
bdd7bd16 1386 data->power_level = conf->power_level;
4c4c671a 1387 if (!data->started || !data->beacon_int)
01e59e46
TP		 1388 tasklet_hrtimer_cancel(&data->beacon_timer);
1389 else if (!hrtimer_is_queued(&data->beacon_timer.timer)) {
c51f8783
TP		 1390 u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
1391 u32 bcn_int = data->beacon_int;
1392 u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1393
01e59e46 1394 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1395 ns_to_ktime(until_tbtt * 1000),
01e59e46
TP		 1396 HRTIMER_MODE_REL);
1397 }
acc1e7a3
JM		 1398
1399 return 0;
1400}
1401
1402
1403static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
1404 unsigned int changed_flags,
3ac64bee 1405 unsigned int *total_flags,u64 multicast)
acc1e7a3
JM		 1406{
1407 struct mac80211_hwsim_data *data = hw->priv;
1408
c96c31e4 1409 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 1410
1411 data->rx_filter = 0;
1412 if (*total_flags & FIF_PROMISC_IN_BSS)
1413 data->rx_filter |= FIF_PROMISC_IN_BSS;
1414 if (*total_flags & FIF_ALLMULTI)
1415 data->rx_filter |= FIF_ALLMULTI;
1416
1417 *total_flags = data->rx_filter;
1418}
1419
0bb861e6
JM		 1420static void mac80211_hwsim_bcn_en_iter(void *data, u8 *mac,
1421 struct ieee80211_vif *vif)
1422{
1423 unsigned int *count = data;
1424 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1425
1426 if (vp->bcn_en)
1427 (*count)++;
1428}
1429
8aa21e6f
JB		 1430static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
1431 struct ieee80211_vif *vif,
1432 struct ieee80211_bss_conf *info,
1433 u32 changed)
1434{
fc6971d4 1435 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
57c4d7b4 1436 struct mac80211_hwsim_data *data = hw->priv;
fc6971d4 1437
8aa21e6f 1438 hwsim_check_magic(vif);
fe63bfa3 1439
0bb861e6
JM		 1440 wiphy_debug(hw->wiphy, "%s(changed=0x%x vif->addr=%pM)\n",
1441 __func__, changed, vif->addr);
fe63bfa3 1442
2d0ddec5 1443 if (changed & BSS_CHANGED_BSSID) {
c96c31e4
JP		 1444 wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
1445 __func__, info->bssid);
2d0ddec5
JB		 1446 memcpy(vp->bssid, info->bssid, ETH_ALEN);
1447 }
1448
fe63bfa3 1449 if (changed & BSS_CHANGED_ASSOC) {
c96c31e4
JP		 1450 wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
1451 info->assoc, info->aid);
fc6971d4
JM		 1452 vp->assoc = info->assoc;
1453 vp->aid = info->aid;
fe63bfa3
JM		 1454 }
1455
57c4d7b4 1456 if (changed & BSS_CHANGED_BEACON_INT) {
c96c31e4 1457 wiphy_debug(hw->wiphy, " BCNINT: %d\n", info->beacon_int);
01e59e46
TP		 1458 data->beacon_int = info->beacon_int * 1024;
1459 }
1460
1461 if (changed & BSS_CHANGED_BEACON_ENABLED) {
1462 wiphy_debug(hw->wiphy, " BCN EN: %d\n", info->enable_beacon);
0bb861e6 1463 vp->bcn_en = info->enable_beacon;
01e59e46
TP		 1464 if (data->started &&
1465 !hrtimer_is_queued(&data->beacon_timer.timer) &&
1466 info->enable_beacon) {
c51f8783
TP		 1467 u64 tsf, until_tbtt;
1468 u32 bcn_int;
01e59e46
TP		 1469 if (WARN_ON(!data->beacon_int))
1470 data->beacon_int = 1000 * 1024;
c51f8783
TP		 1471 tsf = mac80211_hwsim_get_tsf(hw, vif);
1472 bcn_int = data->beacon_int;
1473 until_tbtt = bcn_int - do_div(tsf, bcn_int);
01e59e46 1474 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1475 ns_to_ktime(until_tbtt * 1000),
01e59e46 1476 HRTIMER_MODE_REL);
0bb861e6
JM		 1477 } else if (!info->enable_beacon) {
1478 unsigned int count = 0;
cdb1b805 1479 ieee80211_iterate_active_interfaces_atomic(
0bb861e6
JM		 1480 data->hw, IEEE80211_IFACE_ITER_NORMAL,
1481 mac80211_hwsim_bcn_en_iter, &count);
1482 wiphy_debug(hw->wiphy, " beaconing vifs remaining: %u",
1483 count);
1484 if (count == 0)
1485 tasklet_hrtimer_cancel(&data->beacon_timer);
1486 }
57c4d7b4
JB		 1487 }
1488
fe63bfa3 1489 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
c96c31e4
JP		 1490 wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
1491 info->use_cts_prot);
fe63bfa3
JM		 1492 }
1493
1494 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
c96c31e4
JP		 1495 wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
1496 info->use_short_preamble);
fe63bfa3
JM		 1497 }
1498
1499 if (changed & BSS_CHANGED_ERP_SLOT) {
c96c31e4 1500 wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
fe63bfa3
JM		 1501 }
1502
1503 if (changed & BSS_CHANGED_HT) {
4bf88530
JB		 1504 wiphy_debug(hw->wiphy, " HT: op_mode=0x%x\n",
1505 info->ht_operation_mode);
fe63bfa3
JM		 1506 }
1507
1508 if (changed & BSS_CHANGED_BASIC_RATES) {
c96c31e4
JP		 1509 wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
1510 (unsigned long long) info->basic_rates);
fe63bfa3 1511 }
cbc668a7
JB		 1512
1513 if (changed & BSS_CHANGED_TXPOWER)
1514 wiphy_debug(hw->wiphy, " TX Power: %d dBm\n", info->txpower);
8aa21e6f
JB		 1515}
1516
1d669cbf
JB		 1517static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
1518 struct ieee80211_vif *vif,
1519 struct ieee80211_sta *sta)
1520{
1521 hwsim_check_magic(vif);
1522 hwsim_set_sta_magic(sta);
1523
1524 return 0;
1525}
1526
1527static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
1528 struct ieee80211_vif *vif,
1529 struct ieee80211_sta *sta)
1530{
1531 hwsim_check_magic(vif);
1532 hwsim_clear_sta_magic(sta);
1533
1534 return 0;
1535}
1536
8aa21e6f
JB		 1537static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
1538 struct ieee80211_vif *vif,
17741cdc
JB		 1539 enum sta_notify_cmd cmd,
1540 struct ieee80211_sta *sta)
8aa21e6f
JB		 1541{
1542 hwsim_check_magic(vif);
1d669cbf 1543
81c06523 1544 switch (cmd) {
89fad578
CL		 1545 case STA_NOTIFY_SLEEP:
1546 case STA_NOTIFY_AWAKE:
1547 /* TODO: make good use of these flags */
1548 break;
1d669cbf
JB		 1549 default:
1550 WARN(1, "Invalid sta notify: %d\n", cmd);
1551 break;
81c06523
JB		 1552 }
1553}
1554
1555static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
1556 struct ieee80211_sta *sta,
1557 bool set)
1558{
1559 hwsim_check_sta_magic(sta);
1560 return 0;
8aa21e6f 1561}
acc1e7a3 1562
1e898ff8 1563static int mac80211_hwsim_conf_tx(
8a3a3c85
EP		 1564 struct ieee80211_hw *hw,
1565 struct ieee80211_vif *vif, u16 queue,
1e898ff8
JM		 1566 const struct ieee80211_tx_queue_params *params)
1567{
c96c31e4
JP		 1568 wiphy_debug(hw->wiphy,
1569 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1570 __func__, queue,
1571 params->txop, params->cw_min,
1572 params->cw_max, params->aifs);
1e898ff8
JM		 1573 return 0;
1574}
1575
1289723e
HS		 1576static int mac80211_hwsim_get_survey(
1577 struct ieee80211_hw *hw, int idx,
1578 struct survey_info *survey)
1579{
1580 struct ieee80211_conf *conf = &hw->conf;
1581
c96c31e4 1582 wiphy_debug(hw->wiphy, "%s (idx=%d)\n", __func__, idx);
1289723e
HS		 1583
1584 if (idx != 0)
1585 return -ENOENT;
1586
1587 /* Current channel */
675a0b04 1588 survey->channel = conf->chandef.chan;
1289723e
HS		 1589
1590 /*
1591 * Magically conjured noise level --- this is only ok for simulated hardware.
1592 *
1593 * A real driver which cannot determine the real channel noise MUST NOT
1594 * report any noise, especially not a magically conjured one :-)
1595 */
1596 survey->filled = SURVEY_INFO_NOISE_DBM;
1597 survey->noise = -92;
1598
1599 return 0;
1600}
1601
aff89a9b
JB		 1602#ifdef CONFIG_NL80211_TESTMODE
1603/*
1604 * This section contains example code for using netlink
1605 * attributes with the testmode command in nl80211.
1606 */
1607
1608/* These enums need to be kept in sync with userspace */
1609enum hwsim_testmode_attr {
1610 __HWSIM_TM_ATTR_INVALID = 0,
1611 HWSIM_TM_ATTR_CMD = 1,
1612 HWSIM_TM_ATTR_PS = 2,
1613
1614 /* keep last */
1615 __HWSIM_TM_ATTR_AFTER_LAST,
1616 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1617};
1618
1619enum hwsim_testmode_cmd {
1620 HWSIM_TM_CMD_SET_PS = 0,
1621 HWSIM_TM_CMD_GET_PS = 1,
4d6d0ae2
JB		 1622 HWSIM_TM_CMD_STOP_QUEUES = 2,
1623 HWSIM_TM_CMD_WAKE_QUEUES = 3,
aff89a9b
JB		 1624};
1625
1626static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1627 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1628 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1629};
1630
5bc38193 1631static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
52981cd7 1632 struct ieee80211_vif *vif,
5bc38193 1633 void *data, int len)
aff89a9b
JB		 1634{
1635 struct mac80211_hwsim_data *hwsim = hw->priv;
1636 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1637 struct sk_buff *skb;
1638 int err, ps;
1639
1640 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
1641 hwsim_testmode_policy);
1642 if (err)
1643 return err;
1644
1645 if (!tb[HWSIM_TM_ATTR_CMD])
1646 return -EINVAL;
1647
1648 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1649 case HWSIM_TM_CMD_SET_PS:
1650 if (!tb[HWSIM_TM_ATTR_PS])
1651 return -EINVAL;
1652 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1653 return hwsim_fops_ps_write(hwsim, ps);
1654 case HWSIM_TM_CMD_GET_PS:
1655 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1656 nla_total_size(sizeof(u32)));
1657 if (!skb)
1658 return -ENOMEM;
633c9389
DM		 1659 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
1660 goto nla_put_failure;
aff89a9b 1661 return cfg80211_testmode_reply(skb);
4d6d0ae2
JB		 1662 case HWSIM_TM_CMD_STOP_QUEUES:
1663 ieee80211_stop_queues(hw);
1664 return 0;
1665 case HWSIM_TM_CMD_WAKE_QUEUES:
1666 ieee80211_wake_queues(hw);
1667 return 0;
aff89a9b
JB		 1668 default:
1669 return -EOPNOTSUPP;
1670 }
1671
1672 nla_put_failure:
1673 kfree_skb(skb);
1674 return -ENOBUFS;
1675}
1676#endif
1677
8b73d13a
JB		 1678static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1679 struct ieee80211_vif *vif,
1680 enum ieee80211_ampdu_mlme_action action,
0b01f030
JB		 1681 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
1682 u8 buf_size)
8b73d13a
JB		 1683{
1684 switch (action) {
1685 case IEEE80211_AMPDU_TX_START:
1686 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1687 break;
18b559d5
JB		 1688 case IEEE80211_AMPDU_TX_STOP_CONT:
1689 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1690 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
8b73d13a
JB		 1691 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1692 break;
1693 case IEEE80211_AMPDU_TX_OPERATIONAL:
1694 break;
1695 case IEEE80211_AMPDU_RX_START:
1696 case IEEE80211_AMPDU_RX_STOP:
1697 break;
1698 default:
1699 return -EOPNOTSUPP;
1700 }
1701
1702 return 0;
1703}
1704
77be2c54
EG		 1705static void mac80211_hwsim_flush(struct ieee80211_hw *hw,
1706 struct ieee80211_vif *vif,
1707 u32 queues, bool drop)
a80f7c0b 1708{
7882513b 1709 /* Not implemented, queues only on kernel side */
a80f7c0b
JB		 1710}
1711
e8261171 1712static void hw_scan_work(struct work_struct *work)
69068036 1713{
e8261171
JB		 1714 struct mac80211_hwsim_data *hwsim =
1715 container_of(work, struct mac80211_hwsim_data, hw_scan.work);
1716 struct cfg80211_scan_request *req = hwsim->hw_scan_request;
1717 int dwell, i;
69068036 1718
e8261171
JB		 1719 mutex_lock(&hwsim->mutex);
1720 if (hwsim->scan_chan_idx >= req->n_channels) {
1721 wiphy_debug(hwsim->hw->wiphy, "hw scan complete\n");
1722 ieee80211_scan_completed(hwsim->hw, false);
1723 hwsim->hw_scan_request = NULL;
1724 hwsim->hw_scan_vif = NULL;
1725 hwsim->tmp_chan = NULL;
1726 mutex_unlock(&hwsim->mutex);
1727 return;
1728 }
1729
1730 wiphy_debug(hwsim->hw->wiphy, "hw scan %d MHz\n",
1731 req->channels[hwsim->scan_chan_idx]->center_freq);
1732
1733 hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
8fe02e16 1734 if (hwsim->tmp_chan->flags & IEEE80211_CHAN_NO_IR ||
e8261171
JB		 1735 !req->n_ssids) {
1736 dwell = 120;
1737 } else {
1738 dwell = 30;
1739 /* send probes */
1740 for (i = 0; i < req->n_ssids; i++) {
1741 struct sk_buff *probe;
1742
1743 probe = ieee80211_probereq_get(hwsim->hw,
1744 hwsim->hw_scan_vif,
1745 req->ssids[i].ssid,
1746 req->ssids[i].ssid_len,
b9a9ada1 1747 req->ie_len);
e8261171
JB		 1748 if (!probe)
1749 continue;
b9a9ada1
JB		 1750
1751 if (req->ie_len)
1752 memcpy(skb_put(probe, req->ie_len), req->ie,
1753 req->ie_len);
1754
e8261171
JB		 1755 local_bh_disable();
1756 mac80211_hwsim_tx_frame(hwsim->hw, probe,
1757 hwsim->tmp_chan);
1758 local_bh_enable();
1759 }
1760 }
1761 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
1762 msecs_to_jiffies(dwell));
1763 hwsim->scan_chan_idx++;
1764 mutex_unlock(&hwsim->mutex);
69068036
JB		 1765}
1766
1767static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
a060bbfe 1768 struct ieee80211_vif *vif,
c56ef672 1769 struct ieee80211_scan_request *hw_req)
69068036 1770{
e8261171 1771 struct mac80211_hwsim_data *hwsim = hw->priv;
c56ef672 1772 struct cfg80211_scan_request *req = &hw_req->req;
69068036 1773
e8261171
JB		 1774 mutex_lock(&hwsim->mutex);
1775 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1776 mutex_unlock(&hwsim->mutex);
1777 return -EBUSY;
1778 }
1779 hwsim->hw_scan_request = req;
1780 hwsim->hw_scan_vif = vif;
1781 hwsim->scan_chan_idx = 0;
1782 mutex_unlock(&hwsim->mutex);
69068036 1783
e8261171 1784 wiphy_debug(hw->wiphy, "hwsim hw_scan request\n");
69068036 1785
e8261171 1786 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
69068036
JB		 1787
1788 return 0;
1789}
1790
e8261171
JB		 1791static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
1792 struct ieee80211_vif *vif)
1793{
1794 struct mac80211_hwsim_data *hwsim = hw->priv;
1795
1796 wiphy_debug(hw->wiphy, "hwsim cancel_hw_scan\n");
1797
1798 cancel_delayed_work_sync(&hwsim->hw_scan);
1799
1800 mutex_lock(&hwsim->mutex);
1801 ieee80211_scan_completed(hwsim->hw, true);
1802 hwsim->tmp_chan = NULL;
1803 hwsim->hw_scan_request = NULL;
1804 hwsim->hw_scan_vif = NULL;
1805 mutex_unlock(&hwsim->mutex);
1806}
1807
f74cb0f7
LR		 1808static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw)
1809{
1810 struct mac80211_hwsim_data *hwsim = hw->priv;
1811
1812 mutex_lock(&hwsim->mutex);
1813
1814 if (hwsim->scanning) {
1815 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
1816 goto out;
1817 }
1818
1819 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
1820 hwsim->scanning = true;
1821
1822out:
1823 mutex_unlock(&hwsim->mutex);
1824}
1825
1826static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw)
1827{
1828 struct mac80211_hwsim_data *hwsim = hw->priv;
1829
1830 mutex_lock(&hwsim->mutex);
1831
1832 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
23ff98fc 1833 hwsim->scanning = false;
f74cb0f7
LR		 1834
1835 mutex_unlock(&hwsim->mutex);
1836}
1837
e8261171
JB		 1838static void hw_roc_done(struct work_struct *work)
1839{
1840 struct mac80211_hwsim_data *hwsim =
1841 container_of(work, struct mac80211_hwsim_data, roc_done.work);
1842
1843 mutex_lock(&hwsim->mutex);
1844 ieee80211_remain_on_channel_expired(hwsim->hw);
1845 hwsim->tmp_chan = NULL;
1846 mutex_unlock(&hwsim->mutex);
1847
1848 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC expired\n");
1849}
1850
1851static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
49884568 1852 struct ieee80211_vif *vif,
e8261171 1853 struct ieee80211_channel *chan,
d339d5ca
IP		 1854 int duration,
1855 enum ieee80211_roc_type type)
e8261171
JB		 1856{
1857 struct mac80211_hwsim_data *hwsim = hw->priv;
1858
1859 mutex_lock(&hwsim->mutex);
1860 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1861 mutex_unlock(&hwsim->mutex);
1862 return -EBUSY;
1863 }
1864
1865 hwsim->tmp_chan = chan;
1866 mutex_unlock(&hwsim->mutex);
1867
1868 wiphy_debug(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
1869 chan->center_freq, duration);
1870
1871 ieee80211_ready_on_channel(hw);
1872
1873 ieee80211_queue_delayed_work(hw, &hwsim->roc_done,
1874 msecs_to_jiffies(duration));
1875 return 0;
1876}
1877
1878static int mac80211_hwsim_croc(struct ieee80211_hw *hw)
1879{
1880 struct mac80211_hwsim_data *hwsim = hw->priv;
1881
1882 cancel_delayed_work_sync(&hwsim->roc_done);
1883
1884 mutex_lock(&hwsim->mutex);
1885 hwsim->tmp_chan = NULL;
1886 mutex_unlock(&hwsim->mutex);
1887
1888 wiphy_debug(hw->wiphy, "hwsim ROC canceled\n");
1889
1890 return 0;
1891}
1892
1893static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
1894 struct ieee80211_chanctx_conf *ctx)
1895{
1896 hwsim_set_chanctx_magic(ctx);
4bf88530
JB		 1897 wiphy_debug(hw->wiphy,
1898 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1899 ctx->def.chan->center_freq, ctx->def.width,
1900 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1901 return 0;
1902}
1903
1904static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
1905 struct ieee80211_chanctx_conf *ctx)
1906{
4bf88530
JB		 1907 wiphy_debug(hw->wiphy,
1908 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1909 ctx->def.chan->center_freq, ctx->def.width,
1910 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1911 hwsim_check_chanctx_magic(ctx);
1912 hwsim_clear_chanctx_magic(ctx);
1913}
1914
1915static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
1916 struct ieee80211_chanctx_conf *ctx,
1917 u32 changed)
1918{
1919 hwsim_check_chanctx_magic(ctx);
4bf88530
JB		 1920 wiphy_debug(hw->wiphy,
1921 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1922 ctx->def.chan->center_freq, ctx->def.width,
1923 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1924}
1925
1926static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
1927 struct ieee80211_vif *vif,
1928 struct ieee80211_chanctx_conf *ctx)
1929{
1930 hwsim_check_magic(vif);
1931 hwsim_check_chanctx_magic(ctx);
1932
1933 return 0;
1934}
1935
1936static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
1937 struct ieee80211_vif *vif,
1938 struct ieee80211_chanctx_conf *ctx)
1939{
1940 hwsim_check_magic(vif);
1941 hwsim_check_chanctx_magic(ctx);
1942}
1943
2155c3f8
BG		 1944static const char mac80211_hwsim_gstrings_stats[][ETH_GSTRING_LEN] = {
1945 "tx_pkts_nic",
1946 "tx_bytes_nic",
1947 "rx_pkts_nic",
1948 "rx_bytes_nic",
1949 "d_tx_dropped",
1950 "d_tx_failed",
1951 "d_ps_mode",
1952 "d_group",
1953 "d_tx_power",
1954};
1955
1956#define MAC80211_HWSIM_SSTATS_LEN ARRAY_SIZE(mac80211_hwsim_gstrings_stats)
1957
1958static void mac80211_hwsim_get_et_strings(struct ieee80211_hw *hw,
1959 struct ieee80211_vif *vif,
1960 u32 sset, u8 *data)
1961{
1962 if (sset == ETH_SS_STATS)
1963 memcpy(data, *mac80211_hwsim_gstrings_stats,
1964 sizeof(mac80211_hwsim_gstrings_stats));
1965}
1966
1967static int mac80211_hwsim_get_et_sset_count(struct ieee80211_hw *hw,
1968 struct ieee80211_vif *vif, int sset)
1969{
1970 if (sset == ETH_SS_STATS)
1971 return MAC80211_HWSIM_SSTATS_LEN;
1972 return 0;
1973}
1974
1975static void mac80211_hwsim_get_et_stats(struct ieee80211_hw *hw,
1976 struct ieee80211_vif *vif,
1977 struct ethtool_stats *stats, u64 *data)
1978{
1979 struct mac80211_hwsim_data *ar = hw->priv;
1980 int i = 0;
1981
1982 data[i++] = ar->tx_pkts;
1983 data[i++] = ar->tx_bytes;
1984 data[i++] = ar->rx_pkts;
1985 data[i++] = ar->rx_bytes;
1986 data[i++] = ar->tx_dropped;
1987 data[i++] = ar->tx_failed;
1988 data[i++] = ar->ps;
1989 data[i++] = ar->group;
1990 data[i++] = ar->power_level;
1991
1992 WARN_ON(i != MAC80211_HWSIM_SSTATS_LEN);
1993}
1994
38ed5048 1995static const struct ieee80211_ops mac80211_hwsim_ops = {
acc1e7a3
JM		 1996 .tx = mac80211_hwsim_tx,
1997 .start = mac80211_hwsim_start,
1998 .stop = mac80211_hwsim_stop,
1999 .add_interface = mac80211_hwsim_add_interface,
c35d0270 2000 .change_interface = mac80211_hwsim_change_interface,
acc1e7a3
JM		 2001 .remove_interface = mac80211_hwsim_remove_interface,
2002 .config = mac80211_hwsim_config,
2003 .configure_filter = mac80211_hwsim_configure_filter,
8aa21e6f 2004 .bss_info_changed = mac80211_hwsim_bss_info_changed,
1d669cbf
JB		 2005 .sta_add = mac80211_hwsim_sta_add,
2006 .sta_remove = mac80211_hwsim_sta_remove,
8aa21e6f 2007 .sta_notify = mac80211_hwsim_sta_notify,
81c06523 2008 .set_tim = mac80211_hwsim_set_tim,
1e898ff8 2009 .conf_tx = mac80211_hwsim_conf_tx,
1289723e 2010 .get_survey = mac80211_hwsim_get_survey,
aff89a9b 2011 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
8b73d13a 2012 .ampdu_action = mac80211_hwsim_ampdu_action,
f74cb0f7
LR		 2013 .sw_scan_start = mac80211_hwsim_sw_scan,
2014 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
a80f7c0b 2015 .flush = mac80211_hwsim_flush,
12ce8ba3
JC		 2016 .get_tsf = mac80211_hwsim_get_tsf,
2017 .set_tsf = mac80211_hwsim_set_tsf,
2155c3f8
BG		 2018 .get_et_sset_count = mac80211_hwsim_get_et_sset_count,
2019 .get_et_stats = mac80211_hwsim_get_et_stats,
2020 .get_et_strings = mac80211_hwsim_get_et_strings,
acc1e7a3
JM		 2021};
2022
38ed5048 2023static struct ieee80211_ops mac80211_hwsim_mchan_ops;
acc1e7a3 2024
26b0e411
JB		 2025static int mac80211_hwsim_create_radio(int channels, const char *reg_alpha2,
2026 const struct ieee80211_regdomain *regd,
361c3e04 2027 bool reg_strict, bool p2p_device,
e9ed49bf 2028 bool use_chanctx, bool destroy_on_close,
9a0cb89a
BG		 2029 u32 portid, const char *hwname,
2030 bool no_vif)
acc1e7a3 2031{
de0421d5
JB		 2032 int err;
2033 u8 addr[ETH_ALEN];
e4afb603 2034 struct mac80211_hwsim_data *data;
de0421d5
JB		 2035 struct ieee80211_hw *hw;
2036 enum ieee80211_band band;
2037 const struct ieee80211_ops *ops = &mac80211_hwsim_ops;
2038 int idx;
0e057d73 2039
361c3e04
LC		 2040 if (WARN_ON(channels > 1 && !use_chanctx))
2041 return -EINVAL;
2042
0e057d73 2043 spin_lock_bh(&hwsim_radio_lock);
de0421d5 2044 idx = hwsim_radio_idx++;
0e057d73
JB		 2045 spin_unlock_bh(&hwsim_radio_lock);
2046
361c3e04 2047 if (use_chanctx)
de0421d5 2048 ops = &mac80211_hwsim_mchan_ops;
5cd8926b 2049 hw = ieee80211_alloc_hw_nm(sizeof(*data), ops, hwname);
de0421d5
JB		 2050 if (!hw) {
2051 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw failed\n");
2052 err = -ENOMEM;
2053 goto failed;
2054 }
2055 data = hw->priv;
2056 data->hw = hw;
acc1e7a3 2057
de0421d5
JB		 2058 data->dev = device_create(hwsim_class, NULL, 0, hw, "hwsim%d", idx);
2059 if (IS_ERR(data->dev)) {
2060 printk(KERN_DEBUG
2061 "mac80211_hwsim: device_create failed (%ld)\n",
2062 PTR_ERR(data->dev));
2063 err = -ENOMEM;
2064 goto failed_drvdata;
2065 }
2066 data->dev->driver = &mac80211_hwsim_driver.driver;
2067 err = device_bind_driver(data->dev);
2068 if (err != 0) {
2069 printk(KERN_DEBUG "mac80211_hwsim: device_bind_driver failed (%d)\n",
2070 err);
2071 goto failed_hw;
acc1e7a3 2072 }
acc1e7a3 2073
de0421d5 2074 skb_queue_head_init(&data->pending);
acc1e7a3 2075
de0421d5
JB		 2076 SET_IEEE80211_DEV(hw, data->dev);
2077 memset(addr, 0, ETH_ALEN);
2078 addr[0] = 0x02;
2079 addr[3] = idx >> 8;
2080 addr[4] = idx;
2081 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
2082 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
2083 data->addresses[1].addr[0] |= 0x40;
2084 hw->wiphy->n_addresses = 2;
2085 hw->wiphy->addresses = data->addresses;
fc6971d4 2086
de0421d5 2087 data->channels = channels;
361c3e04 2088 data->use_chanctx = use_chanctx;
bc791098 2089 data->idx = idx;
e9ed49bf
JR		 2090 data->destroy_on_close = destroy_on_close;
2091 data->portid = portid;
fc6971d4 2092
361c3e04 2093 if (data->use_chanctx) {
de0421d5
JB		 2094 hw->wiphy->max_scan_ssids = 255;
2095 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
2096 hw->wiphy->max_remain_on_channel_duration = 1000;
2097 /* For channels > 1 DFS is not allowed */
2098 hw->wiphy->n_iface_combinations = 1;
2099 hw->wiphy->iface_combinations = &data->if_combination;
8c66a3d9
JB		 2100 if (p2p_device)
2101 data->if_combination = hwsim_if_comb_p2p_dev[0];
2102 else
2103 data->if_combination = hwsim_if_comb[0];
b59ec8dd 2104 data->if_combination.num_different_channels = data->channels;
8c66a3d9
JB		 2105 } else if (p2p_device) {
2106 hw->wiphy->iface_combinations = hwsim_if_comb_p2p_dev;
2107 hw->wiphy->n_iface_combinations =
2108 ARRAY_SIZE(hwsim_if_comb_p2p_dev);
de0421d5
JB		 2109 } else {
2110 hw->wiphy->iface_combinations = hwsim_if_comb;
2111 hw->wiphy->n_iface_combinations = ARRAY_SIZE(hwsim_if_comb);
2112 }
acc1e7a3 2113
de0421d5
JB		 2114 INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
2115 INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
7882513b 2116
de0421d5
JB		 2117 hw->queues = 5;
2118 hw->offchannel_tx_hw_queue = 4;
2119 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2120 BIT(NL80211_IFTYPE_AP) |
2121 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2122 BIT(NL80211_IFTYPE_P2P_GO) |
2123 BIT(NL80211_IFTYPE_ADHOC) |
8c66a3d9
JB		 2124 BIT(NL80211_IFTYPE_MESH_POINT);
2125
2126 if (p2p_device)
2127 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_DEVICE);
fc6971d4 2128
de0421d5
JB		 2129 hw->flags = IEEE80211_HW_MFP_CAPABLE |
2130 IEEE80211_HW_SIGNAL_DBM |
de0421d5
JB		 2131 IEEE80211_HW_AMPDU_AGGREGATION |
2132 IEEE80211_HW_WANT_MONITOR_VIF |
2133 IEEE80211_HW_QUEUE_CONTROL |
0037db63
AO		 2134 IEEE80211_HW_SUPPORTS_HT_CCK_RATES |
2135 IEEE80211_HW_CHANCTX_STA_CSA;
de0421d5
JB		 2136 if (rctbl)
2137 hw->flags |= IEEE80211_HW_SUPPORTS_RC_TABLE;
fc6971d4 2138
de0421d5
JB		 2139 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2140 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
0037db63
AO		 2141 WIPHY_FLAG_AP_UAPSD |
2142 WIPHY_FLAG_HAS_CHANNEL_SWITCH;
0d8614b4
EP		 2143 hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR |
2144 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
2145 NL80211_FEATURE_STATIC_SMPS |
2146 NL80211_FEATURE_DYNAMIC_SMPS;
fc6971d4 2147
de0421d5
JB		 2148 /* ask mac80211 to reserve space for magic */
2149 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
2150 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
2151 hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
fc6971d4 2152
de0421d5
JB		 2153 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
2154 sizeof(hwsim_channels_2ghz));
2155 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
2156 sizeof(hwsim_channels_5ghz));
2157 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
7882513b 2158
de0421d5
JB		 2159 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
2160 struct ieee80211_supported_band *sband = &data->bands[band];
2161 switch (band) {
2162 case IEEE80211_BAND_2GHZ:
2163 sband->channels = data->channels_2ghz;
2164 sband->n_channels = ARRAY_SIZE(hwsim_channels_2ghz);
2165 sband->bitrates = data->rates;
2166 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
2167 break;
2168 case IEEE80211_BAND_5GHZ:
2169 sband->channels = data->channels_5ghz;
2170 sband->n_channels = ARRAY_SIZE(hwsim_channels_5ghz);
2171 sband->bitrates = data->rates + 4;
2172 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
2173 break;
2174 default:
2175 continue;
2176 }
acc1e7a3 2177
de0421d5
JB		 2178 sband->ht_cap.ht_supported = true;
2179 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
2180 IEEE80211_HT_CAP_GRN_FLD |
2181 IEEE80211_HT_CAP_SGI_40 |
2182 IEEE80211_HT_CAP_DSSSCCK40;
2183 sband->ht_cap.ampdu_factor = 0x3;
2184 sband->ht_cap.ampdu_density = 0x6;
2185 memset(&sband->ht_cap.mcs, 0,
2186 sizeof(sband->ht_cap.mcs));
2187 sband->ht_cap.mcs.rx_mask[0] = 0xff;
2188 sband->ht_cap.mcs.rx_mask[1] = 0xff;
2189 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
fc6971d4 2190
de0421d5 2191 hw->wiphy->bands[band] = sband;
fc6971d4 2192
de0421d5
JB		 2193 sband->vht_cap.vht_supported = true;
2194 sband->vht_cap.cap =
2195 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
2196 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
2197 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ |
2198 IEEE80211_VHT_CAP_RXLDPC |
2199 IEEE80211_VHT_CAP_SHORT_GI_80 |
2200 IEEE80211_VHT_CAP_SHORT_GI_160 |
2201 IEEE80211_VHT_CAP_TXSTBC |
2202 IEEE80211_VHT_CAP_RXSTBC_1 |
2203 IEEE80211_VHT_CAP_RXSTBC_2 |
2204 IEEE80211_VHT_CAP_RXSTBC_3 |
2205 IEEE80211_VHT_CAP_RXSTBC_4 |
2206 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
2207 sband->vht_cap.vht_mcs.rx_mcs_map =
2208 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_8 << 0 |
2209 IEEE80211_VHT_MCS_SUPPORT_0_8 << 2 |
2210 IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
2211 IEEE80211_VHT_MCS_SUPPORT_0_8 << 6 |
2212 IEEE80211_VHT_MCS_SUPPORT_0_8 << 8 |
2213 IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
2214 IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
2215 IEEE80211_VHT_MCS_SUPPORT_0_8 << 14);
2216 sband->vht_cap.vht_mcs.tx_mcs_map =
2217 sband->vht_cap.vht_mcs.rx_mcs_map;
2218 }
acc1e7a3 2219
de0421d5
JB		 2220 /* By default all radios belong to the first group */
2221 data->group = 1;
2222 mutex_init(&data->mutex);
fc6971d4 2223
de0421d5
JB		 2224 /* Enable frame retransmissions for lossy channels */
2225 hw->max_rates = 4;
2226 hw->max_rate_tries = 11;
fc6971d4 2227
26b0e411
JB		 2228 if (reg_strict)
2229 hw->wiphy->regulatory_flags |= REGULATORY_STRICT_REG;
2230 if (regd) {
2231 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
2232 wiphy_apply_custom_regulatory(hw->wiphy, regd);
2233 /* give the regulatory workqueue a chance to run */
2234 schedule_timeout_interruptible(1);
2235 }
fc6971d4 2236
9a0cb89a
BG		 2237 if (no_vif)
2238 hw->flags |= IEEE80211_HW_NO_AUTO_VIF;
2239
de0421d5
JB		 2240 err = ieee80211_register_hw(hw);
2241 if (err < 0) {
2242 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_register_hw failed (%d)\n",
2243 err);
2244 goto failed_hw;
2245 }
fc6971d4 2246
de0421d5 2247 wiphy_debug(hw->wiphy, "hwaddr %pM registered\n", hw->wiphy->perm_addr);
fc6971d4 2248
26b0e411
JB		 2249 if (reg_alpha2)
2250 regulatory_hint(hw->wiphy, reg_alpha2);
7882513b 2251
de0421d5
JB		 2252 data->debugfs = debugfs_create_dir("hwsim", hw->wiphy->debugfsdir);
2253 debugfs_create_file("ps", 0666, data->debugfs, data, &hwsim_fops_ps);
2254 debugfs_create_file("group", 0666, data->debugfs, data,
2255 &hwsim_fops_group);
361c3e04 2256 if (!data->use_chanctx)
de0421d5
JB		 2257 debugfs_create_file("dfs_simulate_radar", 0222,
2258 data->debugfs,
2259 data, &hwsim_simulate_radar);
fc6971d4 2260
de0421d5
JB		 2261 tasklet_hrtimer_init(&data->beacon_timer,
2262 mac80211_hwsim_beacon,
2263 CLOCK_MONOTONIC_RAW, HRTIMER_MODE_ABS);
fc6971d4 2264
de0421d5
JB		 2265 spin_lock_bh(&hwsim_radio_lock);
2266 list_add_tail(&data->list, &hwsim_radios);
2267 spin_unlock_bh(&hwsim_radio_lock);
fc6971d4 2268
bc791098 2269 return idx;
fc6971d4 2270
de0421d5
JB		 2271failed_hw:
2272 device_unregister(data->dev);
2273failed_drvdata:
2274 ieee80211_free_hw(hw);
2275failed:
2276 return err;
fc6971d4
JM		 2277}
2278
de0421d5 2279static void mac80211_hwsim_destroy_radio(struct mac80211_hwsim_data *data)
fc6971d4 2280{
de0421d5
JB		 2281 debugfs_remove_recursive(data->debugfs);
2282 ieee80211_unregister_hw(data->hw);
2283 device_release_driver(data->dev);
2284 device_unregister(data->dev);
2285 ieee80211_free_hw(data->hw);
fc6971d4
JM		 2286}
2287
de0421d5 2288static void mac80211_hwsim_free(void)
fc6971d4 2289{
de0421d5 2290 struct mac80211_hwsim_data *data;
fc6971d4 2291
de0421d5
JB		 2292 spin_lock_bh(&hwsim_radio_lock);
2293 while ((data = list_first_entry_or_null(&hwsim_radios,
2294 struct mac80211_hwsim_data,
2295 list))) {
2296 list_del(&data->list);
2297 spin_unlock_bh(&hwsim_radio_lock);
2298 mac80211_hwsim_destroy_radio(data);
2299 spin_lock_bh(&hwsim_radio_lock);
fc6971d4 2300 }
de0421d5
JB		 2301 spin_unlock_bh(&hwsim_radio_lock);
2302 class_destroy(hwsim_class);
bba05e3d
JD		 2303}
2304
de0421d5
JB		 2305static const struct net_device_ops hwsim_netdev_ops = {
2306 .ndo_start_xmit = hwsim_mon_xmit,
2307 .ndo_change_mtu = eth_change_mtu,
2308 .ndo_set_mac_address = eth_mac_addr,
2309 .ndo_validate_addr = eth_validate_addr,
2310};
73606d00 2311
de0421d5 2312static void hwsim_mon_setup(struct net_device *dev)
73606d00 2313{
de0421d5
JB		 2314 dev->netdev_ops = &hwsim_netdev_ops;
2315 dev->destructor = free_netdev;
2316 ether_setup(dev);
2317 dev->tx_queue_len = 0;
2318 dev->type = ARPHRD_IEEE80211_RADIOTAP;
2319 memset(dev->dev_addr, 0, ETH_ALEN);
2320 dev->dev_addr[0] = 0x12;
73606d00
DW		 2321}
2322
9ddd12af 2323static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(const u8 *addr)
7882513b
JL		 2324{
2325 struct mac80211_hwsim_data *data;
2326 bool _found = false;
2327
2328 spin_lock_bh(&hwsim_radio_lock);
2329 list_for_each_entry(data, &hwsim_radios, list) {
9ddd12af 2330 if (memcmp(data->addresses[1].addr, addr, ETH_ALEN) == 0) {
7882513b
JL		 2331 _found = true;
2332 break;
2333 }
2334 }
2335 spin_unlock_bh(&hwsim_radio_lock);
2336
2337 if (!_found)
2338 return NULL;
2339
2340 return data;
2341}
2342
2343static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
2344 struct genl_info *info)
2345{
2346
2347 struct ieee80211_hdr *hdr;
2348 struct mac80211_hwsim_data *data2;
2349 struct ieee80211_tx_info *txi;
2350 struct hwsim_tx_rate *tx_attempts;
d0f718c1 2351 unsigned long ret_skb_ptr;
7882513b 2352 struct sk_buff *skb, *tmp;
9ddd12af 2353 const u8 *src;
7882513b 2354 unsigned int hwsim_flags;
7882513b
JL		 2355 int i;
2356 bool found = false;
2357
85ca8fc7
JB		 2358 if (info->snd_portid != wmediumd_portid)
2359 return -EINVAL;
2360
7882513b 2361 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
9ddd12af
JB		 2362 !info->attrs[HWSIM_ATTR_FLAGS] ||
2363 !info->attrs[HWSIM_ATTR_COOKIE] ||
2364 !info->attrs[HWSIM_ATTR_TX_INFO])
7882513b
JL		 2365 goto out;
2366
9ddd12af 2367 src = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
7882513b 2368 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
d0f718c1 2369 ret_skb_ptr = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
7882513b
JL		 2370
2371 data2 = get_hwsim_data_ref_from_addr(src);
9ddd12af 2372 if (!data2)
7882513b
JL		 2373 goto out;
2374
2375 /* look for the skb matching the cookie passed back from user */
2376 skb_queue_walk_safe(&data2->pending, skb, tmp) {
d0f718c1 2377 if ((unsigned long)skb == ret_skb_ptr) {
7882513b
JL		 2378 skb_unlink(skb, &data2->pending);
2379 found = true;
2380 break;
2381 }
2382 }
2383
2384 /* not found */
2385 if (!found)
2386 goto out;
2387
2388 /* Tx info received because the frame was broadcasted on user space,
2389 so we get all the necessary info: tx attempts and skb control buff */
2390
2391 tx_attempts = (struct hwsim_tx_rate *)nla_data(
2392 info->attrs[HWSIM_ATTR_TX_INFO]);
2393
2394 /* now send back TX status */
2395 txi = IEEE80211_SKB_CB(skb);
2396
7882513b
JL		 2397 ieee80211_tx_info_clear_status(txi);
2398
2399 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
2400 txi->status.rates[i].idx = tx_attempts[i].idx;
2401 txi->status.rates[i].count = tx_attempts[i].count;
2402 /*txi->status.rates[i].flags = 0;*/
2403 }
2404
2405 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
2406
2407 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
2408 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
2409 if (skb->len >= 16) {
2410 hdr = (struct ieee80211_hdr *) skb->data;
c0e30763 2411 mac80211_hwsim_monitor_ack(data2->channel,
e8261171 2412 hdr->addr2);
7882513b 2413 }
06cf5c4c 2414 txi->flags |= IEEE80211_TX_STAT_ACK;
7882513b
JL		 2415 }
2416 ieee80211_tx_status_irqsafe(data2->hw, skb);
2417 return 0;
2418out:
2419 return -EINVAL;
2420
2421}
2422
2423static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
2424 struct genl_info *info)
2425{
2426
e8261171 2427 struct mac80211_hwsim_data *data2;
7882513b 2428 struct ieee80211_rx_status rx_status;
9ddd12af 2429 const u8 *dst;
7882513b 2430 int frame_data_len;
9ddd12af 2431 void *frame_data;
7882513b
JL		 2432 struct sk_buff *skb = NULL;
2433
85ca8fc7
JB		 2434 if (info->snd_portid != wmediumd_portid)
2435 return -EINVAL;
2436
7882513b 2437 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
e8261171
JB		 2438 !info->attrs[HWSIM_ATTR_FRAME] ||
2439 !info->attrs[HWSIM_ATTR_RX_RATE] ||
2440 !info->attrs[HWSIM_ATTR_SIGNAL])
7882513b
JL		 2441 goto out;
2442
9ddd12af 2443 dst = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
7882513b 2444 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
9ddd12af 2445 frame_data = (void *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
7882513b
JL		 2446
2447 /* Allocate new skb here */
2448 skb = alloc_skb(frame_data_len, GFP_KERNEL);
2449 if (skb == NULL)
2450 goto err;
2451
9ddd12af 2452 if (frame_data_len > IEEE80211_MAX_DATA_LEN)
7882513b
JL		 2453 goto err;
2454
9ddd12af
JB		 2455 /* Copy the data */
2456 memcpy(skb_put(skb, frame_data_len), frame_data, frame_data_len);
7882513b 2457
9ddd12af
JB		 2458 data2 = get_hwsim_data_ref_from_addr(dst);
2459 if (!data2)
7882513b
JL		 2460 goto out;
2461
2462 /* check if radio is configured properly */
2463
e8261171 2464 if (data2->idle || !data2->started)
7882513b
JL		 2465 goto out;
2466
9ddd12af 2467 /* A frame is received from user space */
7882513b 2468 memset(&rx_status, 0, sizeof(rx_status));
4f86ed8f
BG		 2469 /* TODO: Check ATTR_FREQ if it exists, and maybe throw away off-channel
2470 * packets?
2471 */
7882513b
JL		 2472 rx_status.freq = data2->channel->center_freq;
2473 rx_status.band = data2->channel->band;
2474 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
2475 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
2476
2477 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
2155c3f8
BG		 2478 data2->rx_pkts++;
2479 data2->rx_bytes += skb->len;
7882513b
JL		 2480 ieee80211_rx_irqsafe(data2->hw, skb);
2481
2482 return 0;
2483err:
c393862f 2484 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 2485out:
2486 dev_kfree_skb(skb);
2487 return -EINVAL;
2488}
2489
2490static int hwsim_register_received_nl(struct sk_buff *skb_2,
2491 struct genl_info *info)
2492{
c5ac0854
JB		 2493 struct mac80211_hwsim_data *data;
2494 int chans = 1;
2495
2496 spin_lock_bh(&hwsim_radio_lock);
2497 list_for_each_entry(data, &hwsim_radios, list)
2498 chans = max(chans, data->channels);
2499 spin_unlock_bh(&hwsim_radio_lock);
2500
2501 /* In the future we should revise the userspace API and allow it
2502 * to set a flag that it does support multi-channel, then we can
2503 * let this pass conditionally on the flag.
2504 * For current userspace, prohibit it since it won't work right.
2505 */
2506 if (chans > 1)
2507 return -EOPNOTSUPP;
2508
85ca8fc7
JB		 2509 if (wmediumd_portid)
2510 return -EBUSY;
7882513b 2511
15e47304 2512 wmediumd_portid = info->snd_portid;
7882513b
JL		 2513
2514 printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
15e47304 2515 "switching to wmediumd mode with pid %d\n", info->snd_portid);
7882513b
JL		 2516
2517 return 0;
7882513b
JL		 2518}
2519
bc791098
JB		 2520static int hwsim_create_radio_nl(struct sk_buff *msg, struct genl_info *info)
2521{
2522 unsigned int chans = channels;
26b0e411
JB		 2523 const char *alpha2 = NULL;
2524 const struct ieee80211_regdomain *regd = NULL;
2525 bool reg_strict = info->attrs[HWSIM_ATTR_REG_STRICT_REG];
8c66a3d9 2526 bool p2p_device = info->attrs[HWSIM_ATTR_SUPPORT_P2P_DEVICE];
e9ed49bf 2527 bool destroy_on_close = info->attrs[HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE];
361c3e04 2528 bool use_chanctx;
9a0cb89a 2529 bool no_vif = false;
5cd8926b 2530 const char *hwname = NULL;
bc791098
JB		 2531
2532 if (info->attrs[HWSIM_ATTR_CHANNELS])
2533 chans = nla_get_u32(info->attrs[HWSIM_ATTR_CHANNELS]);
2534
9a0cb89a
BG		 2535 if (info->attrs[HWSIM_ATTR_NO_VIF])
2536 no_vif = true;
2537
5cd8926b
BG		 2538 if (info->attrs[HWSIM_ATTR_RADIO_NAME])
2539 hwname = nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]);
2540
361c3e04
LC		 2541 if (info->attrs[HWSIM_ATTR_USE_CHANCTX])
2542 use_chanctx = true;
2543 else
2544 use_chanctx = (chans > 1);
2545
26b0e411
JB		 2546 if (info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2])
2547 alpha2 = nla_data(info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2]);
2548
2549 if (info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]) {
2550 u32 idx = nla_get_u32(info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]);
2551
2552 if (idx >= ARRAY_SIZE(hwsim_world_regdom_custom))
2553 return -EINVAL;
2554 regd = hwsim_world_regdom_custom[idx];
2555 }
2556
8c66a3d9 2557 return mac80211_hwsim_create_radio(chans, alpha2, regd, reg_strict,
e9ed49bf 2558 p2p_device, use_chanctx,
5cd8926b 2559 destroy_on_close, info->snd_portid,
9a0cb89a 2560 hwname, no_vif);
bc791098
JB		 2561}
2562
2563static int hwsim_destroy_radio_nl(struct sk_buff *msg, struct genl_info *info)
2564{
2565 struct mac80211_hwsim_data *data;
8cdd9e1c
BG		 2566 s64 idx = -1;
2567 const char *hwname = NULL;
bc791098 2568
8cdd9e1c
BG		 2569 if (info->attrs[HWSIM_ATTR_RADIO_ID])
2570 idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
2571 else if (info->attrs[HWSIM_ATTR_RADIO_NAME])
2572 hwname = (void *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]);
2573 else
bc791098 2574 return -EINVAL;
bc791098
JB		 2575
2576 spin_lock_bh(&hwsim_radio_lock);
2577 list_for_each_entry(data, &hwsim_radios, list) {
8cdd9e1c
BG		 2578 if (idx >= 0) {
2579 if (data->idx != idx)
2580 continue;
2581 } else {
2582 if (hwname &&
2583 strcmp(hwname, wiphy_name(data->hw->wiphy)))
2584 continue;
2585 }
2586
bc791098
JB		 2587 list_del(&data->list);
2588 spin_unlock_bh(&hwsim_radio_lock);
2589 mac80211_hwsim_destroy_radio(data);
2590 return 0;
2591 }
2592 spin_unlock_bh(&hwsim_radio_lock);
2593
2594 return -ENODEV;
7882513b
JL		 2595}
2596
2597/* Generic Netlink operations array */
4534de83 2598static const struct genl_ops hwsim_ops[] = {
7882513b
JL		 2599 {
2600 .cmd = HWSIM_CMD_REGISTER,
2601 .policy = hwsim_genl_policy,
2602 .doit = hwsim_register_received_nl,
2603 .flags = GENL_ADMIN_PERM,
2604 },
2605 {
2606 .cmd = HWSIM_CMD_FRAME,
2607 .policy = hwsim_genl_policy,
2608 .doit = hwsim_cloned_frame_received_nl,
2609 },
2610 {
2611 .cmd = HWSIM_CMD_TX_INFO_FRAME,
2612 .policy = hwsim_genl_policy,
2613 .doit = hwsim_tx_info_frame_received_nl,
2614 },
bc791098
JB		 2615 {
2616 .cmd = HWSIM_CMD_CREATE_RADIO,
2617 .policy = hwsim_genl_policy,
2618 .doit = hwsim_create_radio_nl,
2619 .flags = GENL_ADMIN_PERM,
2620 },
2621 {
2622 .cmd = HWSIM_CMD_DESTROY_RADIO,
2623 .policy = hwsim_genl_policy,
2624 .doit = hwsim_destroy_radio_nl,
2625 .flags = GENL_ADMIN_PERM,
2626 },
7882513b
JL		 2627};
2628
e9ed49bf
JR		 2629static void destroy_radio(struct work_struct *work)
2630{
2631 struct mac80211_hwsim_data *data =
2632 container_of(work, struct mac80211_hwsim_data, destroy_work);
2633
2634 mac80211_hwsim_destroy_radio(data);
2635}
2636
2637static void remove_user_radios(u32 portid)
2638{
2639 struct mac80211_hwsim_data *entry, *tmp;
2640
2641 spin_lock_bh(&hwsim_radio_lock);
2642 list_for_each_entry_safe(entry, tmp, &hwsim_radios, list) {
2643 if (entry->destroy_on_close && entry->portid == portid) {
2644 list_del(&entry->list);
2645 INIT_WORK(&entry->destroy_work, destroy_radio);
2646 schedule_work(&entry->destroy_work);
2647 }
2648 }
2649 spin_unlock_bh(&hwsim_radio_lock);
2650}
2651
7882513b
JL		 2652static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
2653 unsigned long state,
2654 void *_notify)
2655{
2656 struct netlink_notify *notify = _notify;
2657
2658 if (state != NETLINK_URELEASE)
2659 return NOTIFY_DONE;
2660
e9ed49bf
JR		 2661 remove_user_radios(notify->portid);
2662
15e47304 2663 if (notify->portid == wmediumd_portid) {
7882513b
JL		 2664 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
2665 " socket, switching to perfect channel medium\n");
15e47304 2666 wmediumd_portid = 0;
7882513b
JL		 2667 }
2668 return NOTIFY_DONE;
2669
2670}
2671
2672static struct notifier_block hwsim_netlink_notifier = {
2673 .notifier_call = mac80211_hwsim_netlink_notify,
2674};
2675
2676static int hwsim_init_netlink(void)
2677{
2678 int rc;
e8261171 2679
7882513b
JL		 2680 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
2681
c53ed742 2682 rc = genl_register_family_with_ops(&hwsim_genl_family, hwsim_ops);
7882513b
JL		 2683 if (rc)
2684 goto failure;
2685
2686 rc = netlink_register_notifier(&hwsim_netlink_notifier);
2687 if (rc)
2688 goto failure;
2689
2690 return 0;
2691
2692failure:
c393862f 2693 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 2694 return -EINVAL;
2695}
2696
2697static void hwsim_exit_netlink(void)
2698{
7882513b
JL		 2699 /* unregister the notifier */
2700 netlink_unregister_notifier(&hwsim_netlink_notifier);
2701 /* unregister the family */
cf7a6b2d 2702 genl_unregister_family(&hwsim_genl_family);
7882513b
JL		 2703}
2704
acc1e7a3
JM		 2705static int __init init_mac80211_hwsim(void)
2706{
f39c2bfa 2707 int i, err;
acc1e7a3 2708
bc791098 2709 if (radios < 0 || radios > 100)
acc1e7a3
JM		 2710 return -EINVAL;
2711
e8261171
JB		 2712 if (channels < 1)
2713 return -EINVAL;
2714
38ed5048
JB		 2715 mac80211_hwsim_mchan_ops = mac80211_hwsim_ops;
2716 mac80211_hwsim_mchan_ops.hw_scan = mac80211_hwsim_hw_scan;
2717 mac80211_hwsim_mchan_ops.cancel_hw_scan = mac80211_hwsim_cancel_hw_scan;
2718 mac80211_hwsim_mchan_ops.sw_scan_start = NULL;
2719 mac80211_hwsim_mchan_ops.sw_scan_complete = NULL;
2720 mac80211_hwsim_mchan_ops.remain_on_channel = mac80211_hwsim_roc;
2721 mac80211_hwsim_mchan_ops.cancel_remain_on_channel = mac80211_hwsim_croc;
2722 mac80211_hwsim_mchan_ops.add_chanctx = mac80211_hwsim_add_chanctx;
2723 mac80211_hwsim_mchan_ops.remove_chanctx = mac80211_hwsim_remove_chanctx;
2724 mac80211_hwsim_mchan_ops.change_chanctx = mac80211_hwsim_change_chanctx;
2725 mac80211_hwsim_mchan_ops.assign_vif_chanctx =
2726 mac80211_hwsim_assign_vif_chanctx;
2727 mac80211_hwsim_mchan_ops.unassign_vif_chanctx =
2728 mac80211_hwsim_unassign_vif_chanctx;
69068036 2729
0e057d73
JB		 2730 spin_lock_init(&hwsim_radio_lock);
2731 INIT_LIST_HEAD(&hwsim_radios);
acc1e7a3 2732
c07fe5ae 2733 err = platform_driver_register(&mac80211_hwsim_driver);
9ea92774
MP		 2734 if (err)
2735 return err;
2736
acc1e7a3 2737 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
9ea92774
MP		 2738 if (IS_ERR(hwsim_class)) {
2739 err = PTR_ERR(hwsim_class);
f39c2bfa 2740 goto out_unregister_driver;
9ea92774 2741 }
acc1e7a3 2742
0e057d73 2743 for (i = 0; i < radios; i++) {
26b0e411
JB		 2744 const char *reg_alpha2 = NULL;
2745 const struct ieee80211_regdomain *regd = NULL;
2746 bool reg_strict = false;
acc1e7a3 2747
4a5af9c2 2748 switch (regtest) {
4a5af9c2 2749 case HWSIM_REGTEST_DIFF_COUNTRY:
26b0e411
JB		 2750 if (i < ARRAY_SIZE(hwsim_alpha2s))
2751 reg_alpha2 = hwsim_alpha2s[i];
4a5af9c2
LR		 2752 break;
2753 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
2754 if (!i)
26b0e411 2755 reg_alpha2 = hwsim_alpha2s[0];
4a5af9c2 2756 break;
4a5af9c2 2757 case HWSIM_REGTEST_STRICT_ALL:
26b0e411
JB		 2758 reg_strict = true;
2759 case HWSIM_REGTEST_DRIVER_REG_ALL:
2760 reg_alpha2 = hwsim_alpha2s[0];
4a5af9c2 2761 break;
26b0e411
JB		 2762 case HWSIM_REGTEST_WORLD_ROAM:
2763 if (i == 0)
2764 regd = &hwsim_world_regdom_custom_01;
4a5af9c2
LR		 2765 break;
2766 case HWSIM_REGTEST_CUSTOM_WORLD:
26b0e411
JB		 2767 regd = &hwsim_world_regdom_custom_01;
2768 break;
4a5af9c2 2769 case HWSIM_REGTEST_CUSTOM_WORLD_2:
26b0e411
JB		 2770 if (i == 0)
2771 regd = &hwsim_world_regdom_custom_01;
2772 else if (i == 1)
2773 regd = &hwsim_world_regdom_custom_02;
4a5af9c2
LR		 2774 break;
2775 case HWSIM_REGTEST_STRICT_FOLLOW:
26b0e411
JB		 2776 if (i == 0) {
2777 reg_strict = true;
2778 reg_alpha2 = hwsim_alpha2s[0];
2779 }
4a5af9c2
LR		 2780 break;
2781 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
26b0e411
JB		 2782 if (i == 0) {
2783 reg_strict = true;
2784 reg_alpha2 = hwsim_alpha2s[0];
2785 } else if (i == 1) {
2786 reg_alpha2 = hwsim_alpha2s[1];
2787 }
4a5af9c2
LR		 2788 break;
2789 case HWSIM_REGTEST_ALL:
26b0e411
JB		 2790 switch (i) {
2791 case 0:
2792 regd = &hwsim_world_regdom_custom_01;
2793 break;
2794 case 1:
2795 regd = &hwsim_world_regdom_custom_02;
2796 break;
2797 case 2:
2798 reg_alpha2 = hwsim_alpha2s[0];
2799 break;
2800 case 3:
2801 reg_alpha2 = hwsim_alpha2s[1];
2802 break;
2803 case 4:
2804 reg_strict = true;
2805 reg_alpha2 = hwsim_alpha2s[2];
2806 break;
2807 }
4a5af9c2
LR		 2808 break;
2809 default:
2810 break;
2811 }
2812
26b0e411 2813 err = mac80211_hwsim_create_radio(channels, reg_alpha2,
8c66a3d9 2814 regd, reg_strict,
361c3e04 2815 support_p2p_device,
9a0cb89a
BG		 2816 channels > 1, false, 0, NULL,
2817 false);
bc791098 2818 if (err < 0)
f39c2bfa 2819 goto out_free_radios;
acc1e7a3
JM		 2820 }
2821
c835a677
TG		 2822 hwsim_mon = alloc_netdev(0, "hwsim%d", NET_NAME_UNKNOWN,
2823 hwsim_mon_setup);
bcdd8220
WY		 2824 if (hwsim_mon == NULL) {
2825 err = -ENOMEM;
f39c2bfa 2826 goto out_free_radios;
bcdd8220 2827 }
acc1e7a3 2828
7882513b 2829 rtnl_lock();
7882513b 2830 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
f39c2bfa
JB		 2831 if (err < 0) {
2832 rtnl_unlock();
2833 goto out_free_radios;
2834 }
7882513b
JL		 2835
2836 err = register_netdevice(hwsim_mon);
f39c2bfa
JB		 2837 if (err < 0) {
2838 rtnl_unlock();
2839 goto out_free_mon;
2840 }
7882513b
JL		 2841 rtnl_unlock();
2842
2843 err = hwsim_init_netlink();
2844 if (err < 0)
f39c2bfa 2845 goto out_free_mon;
7882513b 2846
acc1e7a3
JM		 2847 return 0;
2848
f39c2bfa 2849out_free_mon:
acc1e7a3 2850 free_netdev(hwsim_mon);
f39c2bfa 2851out_free_radios:
3a33cc10 2852 mac80211_hwsim_free();
f39c2bfa 2853out_unregister_driver:
c07fe5ae 2854 platform_driver_unregister(&mac80211_hwsim_driver);
acc1e7a3
JM		 2855 return err;
2856}
f8fffc7e 2857module_init(init_mac80211_hwsim);
acc1e7a3
JM		 2858
2859static void __exit exit_mac80211_hwsim(void)
2860{
0e057d73 2861 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
acc1e7a3 2862
7882513b
JL		 2863 hwsim_exit_netlink();
2864
acc1e7a3 2865 mac80211_hwsim_free();
5d416351 2866 unregister_netdev(hwsim_mon);
c07fe5ae 2867 platform_driver_unregister(&mac80211_hwsim_driver);
acc1e7a3 2868}
acc1e7a3 2869module_exit(exit_mac80211_hwsim);
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