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ieee80211: add definition for SMS4 key len
[people/ms/linux.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
4a5af9c2
LR		 60/**
61 * enum hwsim_regtest - the type of regulatory tests we offer
62 *
63 * These are the different values you can use for the regtest
64 * module parameter. This is useful to help test world roaming
65 * and the driver regulatory_hint() call and combinations of these.
66 * If you want to do specific alpha2 regulatory domain tests simply
67 * use the userspace regulatory request as that will be respected as
68 * well without the need of this module parameter. This is designed
69 * only for testing the driver regulatory request, world roaming
70 * and all possible combinations.
71 *
72 * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
73 * this is the default value.
74 * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
75 * hint, only one driver regulatory hint will be sent as such the
76 * secondary radios are expected to follow.
77 * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
78 * request with all radios reporting the same regulatory domain.
79 * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
80 * different regulatory domains requests. Expected behaviour is for
81 * an intersection to occur but each device will still use their
82 * respective regulatory requested domains. Subsequent radios will
83 * use the resulting intersection.
25985edc 84 * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We accomplish
4a5af9c2
LR		 85 * this by using a custom beacon-capable regulatory domain for the first
86 * radio. All other device world roam.
87 * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
88 * domain requests. All radios will adhere to this custom world regulatory
89 * domain.
90 * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
91 * domain requests. The first radio will adhere to the first custom world
92 * regulatory domain, the second one to the second custom world regulatory
93 * domain. All other devices will world roam.
94 * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain
95 * settings, only the first radio will send a regulatory domain request
96 * and use strict settings. The rest of the radios are expected to follow.
97 * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
98 * settings. All radios will adhere to this.
99 * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
100 * domain settings, combined with secondary driver regulatory domain
101 * settings. The first radio will get a strict regulatory domain setting
102 * using the first driver regulatory request and the second radio will use
103 * non-strict settings using the second driver regulatory request. All
104 * other devices should follow the intersection created between the
105 * first two.
106 * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
107 * at least 6 radios for a complete test. We will test in this order:
108 * 1 - driver custom world regulatory domain
109 * 2 - second custom world regulatory domain
110 * 3 - first driver regulatory domain request
111 * 4 - second driver regulatory domain request
112 * 5 - strict regulatory domain settings using the third driver regulatory
113 * domain request
114 * 6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
115 * regulatory requests.
116 */
117enum hwsim_regtest {
118 HWSIM_REGTEST_DISABLED = 0,
119 HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1,
120 HWSIM_REGTEST_DRIVER_REG_ALL = 2,
121 HWSIM_REGTEST_DIFF_COUNTRY = 3,
122 HWSIM_REGTEST_WORLD_ROAM = 4,
123 HWSIM_REGTEST_CUSTOM_WORLD = 5,
124 HWSIM_REGTEST_CUSTOM_WORLD_2 = 6,
125 HWSIM_REGTEST_STRICT_FOLLOW = 7,
126 HWSIM_REGTEST_STRICT_ALL = 8,
127 HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9,
128 HWSIM_REGTEST_ALL = 10,
129};
130
131/* Set to one of the HWSIM_REGTEST_* values above */
132static int regtest = HWSIM_REGTEST_DISABLED;
133module_param(regtest, int, 0444);
134MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run");
135
136static const char *hwsim_alpha2s[] = {
137 "FI",
138 "AL",
139 "US",
140 "DE",
141 "JP",
142 "AL",
143};
144
145static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = {
146 .n_reg_rules = 4,
147 .alpha2 = "99",
148 .reg_rules = {
149 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
150 REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
151 REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
152 REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
153 }
154};
155
156static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = {
157 .n_reg_rules = 2,
158 .alpha2 = "99",
159 .reg_rules = {
160 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
161 REG_RULE(5725-10, 5850+10, 40, 0, 30,
8fe02e16 162 NL80211_RRF_NO_IR),
4a5af9c2
LR		 163 }
164};
165
8aa21e6f
JB		 166struct hwsim_vif_priv {
167 u32 magic;
fc6971d4
JM		 168 u8 bssid[ETH_ALEN];
169 bool assoc;
0bb861e6 170 bool bcn_en;
fc6971d4 171 u16 aid;
8aa21e6f
JB		 172};
173
174#define HWSIM_VIF_MAGIC 0x69537748
175
176static inline void hwsim_check_magic(struct ieee80211_vif *vif)
177{
178 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
e8261171
JB		 179 WARN(vp->magic != HWSIM_VIF_MAGIC,
180 "Invalid VIF (%p) magic %#x, %pM, %d/%d\n",
181 vif, vp->magic, vif->addr, vif->type, vif->p2p);
8aa21e6f
JB		 182}
183
184static inline void hwsim_set_magic(struct ieee80211_vif *vif)
185{
186 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
187 vp->magic = HWSIM_VIF_MAGIC;
188}
189
190static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
191{
192 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
193 vp->magic = 0;
194}
acc1e7a3 195
81c06523
JB		 196struct hwsim_sta_priv {
197 u32 magic;
198};
199
e8261171 200#define HWSIM_STA_MAGIC 0x6d537749
81c06523
JB		 201
202static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
203{
204 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
5d6924ea 205 WARN_ON(sp->magic != HWSIM_STA_MAGIC);
81c06523
JB		 206}
207
208static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
209{
210 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
5d6924ea 211 sp->magic = HWSIM_STA_MAGIC;
81c06523
JB		 212}
213
214static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
215{
216 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
217 sp->magic = 0;
218}
219
e8261171
JB		 220struct hwsim_chanctx_priv {
221 u32 magic;
222};
223
224#define HWSIM_CHANCTX_MAGIC 0x6d53774a
225
226static inline void hwsim_check_chanctx_magic(struct ieee80211_chanctx_conf *c)
227{
228 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
229 WARN_ON(cp->magic != HWSIM_CHANCTX_MAGIC);
230}
231
232static inline void hwsim_set_chanctx_magic(struct ieee80211_chanctx_conf *c)
233{
234 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
235 cp->magic = HWSIM_CHANCTX_MAGIC;
236}
237
238static inline void hwsim_clear_chanctx_magic(struct ieee80211_chanctx_conf *c)
239{
240 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
241 cp->magic = 0;
242}
243
acc1e7a3
JM		 244static struct class *hwsim_class;
245
acc1e7a3
JM		 246static struct net_device *hwsim_mon; /* global monitor netdev */
247
22cad735
LR		 248#define CHAN2G(_freq) { \
249 .band = IEEE80211_BAND_2GHZ, \
250 .center_freq = (_freq), \
251 .hw_value = (_freq), \
252 .max_power = 20, \
253}
254
255#define CHAN5G(_freq) { \
256 .band = IEEE80211_BAND_5GHZ, \
257 .center_freq = (_freq), \
258 .hw_value = (_freq), \
259 .max_power = 20, \
260}
261
262static const struct ieee80211_channel hwsim_channels_2ghz[] = {
263 CHAN2G(2412), /* Channel 1 */
264 CHAN2G(2417), /* Channel 2 */
265 CHAN2G(2422), /* Channel 3 */
266 CHAN2G(2427), /* Channel 4 */
267 CHAN2G(2432), /* Channel 5 */
268 CHAN2G(2437), /* Channel 6 */
269 CHAN2G(2442), /* Channel 7 */
270 CHAN2G(2447), /* Channel 8 */
271 CHAN2G(2452), /* Channel 9 */
272 CHAN2G(2457), /* Channel 10 */
273 CHAN2G(2462), /* Channel 11 */
274 CHAN2G(2467), /* Channel 12 */
275 CHAN2G(2472), /* Channel 13 */
276 CHAN2G(2484), /* Channel 14 */
277};
acc1e7a3 278
22cad735
LR		 279static const struct ieee80211_channel hwsim_channels_5ghz[] = {
280 CHAN5G(5180), /* Channel 36 */
281 CHAN5G(5200), /* Channel 40 */
282 CHAN5G(5220), /* Channel 44 */
283 CHAN5G(5240), /* Channel 48 */
284
285 CHAN5G(5260), /* Channel 52 */
286 CHAN5G(5280), /* Channel 56 */
287 CHAN5G(5300), /* Channel 60 */
288 CHAN5G(5320), /* Channel 64 */
289
290 CHAN5G(5500), /* Channel 100 */
291 CHAN5G(5520), /* Channel 104 */
292 CHAN5G(5540), /* Channel 108 */
293 CHAN5G(5560), /* Channel 112 */
294 CHAN5G(5580), /* Channel 116 */
295 CHAN5G(5600), /* Channel 120 */
296 CHAN5G(5620), /* Channel 124 */
297 CHAN5G(5640), /* Channel 128 */
298 CHAN5G(5660), /* Channel 132 */
299 CHAN5G(5680), /* Channel 136 */
300 CHAN5G(5700), /* Channel 140 */
301
302 CHAN5G(5745), /* Channel 149 */
303 CHAN5G(5765), /* Channel 153 */
304 CHAN5G(5785), /* Channel 157 */
305 CHAN5G(5805), /* Channel 161 */
306 CHAN5G(5825), /* Channel 165 */
acc1e7a3
JM		 307};
308
309static const struct ieee80211_rate hwsim_rates[] = {
310 { .bitrate = 10 },
311 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
312 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
313 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
314 { .bitrate = 60 },
315 { .bitrate = 90 },
316 { .bitrate = 120 },
317 { .bitrate = 180 },
318 { .bitrate = 240 },
319 { .bitrate = 360 },
320 { .bitrate = 480 },
321 { .bitrate = 540 }
322};
323
0e057d73
JB		 324static spinlock_t hwsim_radio_lock;
325static struct list_head hwsim_radios;
326
acc1e7a3 327struct mac80211_hwsim_data {
0e057d73
JB		 328 struct list_head list;
329 struct ieee80211_hw *hw;
acc1e7a3 330 struct device *dev;
1b083ea4 331 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
22cad735
LR		 332 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
333 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
acc1e7a3
JM		 334 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
335
ef15aac6
JB		 336 struct mac_address addresses[2];
337
e8261171
JB		 338 struct ieee80211_channel *tmp_chan;
339 struct delayed_work roc_done;
340 struct delayed_work hw_scan;
341 struct cfg80211_scan_request *hw_scan_request;
342 struct ieee80211_vif *hw_scan_vif;
343 int scan_chan_idx;
344
acc1e7a3 345 struct ieee80211_channel *channel;
01e59e46 346 u64 beacon_int /* beacon interval in us */;
acc1e7a3 347 unsigned int rx_filter;
f74cb0f7
LR		 348 bool started, idle, scanning;
349 struct mutex mutex;
01e59e46 350 struct tasklet_hrtimer beacon_timer;
fc6971d4
JM		 351 enum ps_mode {
352 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
353 } ps;
354 bool ps_poll_pending;
355 struct dentry *debugfs;
73606d00 356
7882513b 357 struct sk_buff_head pending; /* packets pending */
73606d00
DW		 358 /*
359 * Only radios in the same group can communicate together (the
360 * channel has to match too). Each bit represents a group. A
361 * radio can be in more then one group.
362 */
363 u64 group;
bdd7bd16
BG		 364
365 int power_level;
2f40b940
JC		 366
367 /* difference between this hw's clock and the real clock, in usecs */
45034bfb 368 s64 tsf_offset;
c51f8783 369 s64 bcn_delta;
b66851c3
TP		 370 /* absolute beacon transmission time. Used to cover up "tx" delay. */
371 u64 abs_bcn_ts;
acc1e7a3
JM		 372};
373
374
375struct hwsim_radiotap_hdr {
376 struct ieee80211_radiotap_header hdr;
2f40b940 377 __le64 rt_tsft;
acc1e7a3
JM		 378 u8 rt_flags;
379 u8 rt_rate;
380 __le16 rt_channel;
381 __le16 rt_chbitmask;
ba2d3587 382} __packed;
acc1e7a3 383
76a56eb3
JM		 384struct hwsim_radiotap_ack_hdr {
385 struct ieee80211_radiotap_header hdr;
386 u8 rt_flags;
387 u8 pad;
388 __le16 rt_channel;
389 __le16 rt_chbitmask;
390} __packed;
391
7882513b
JL		 392/* MAC80211_HWSIM netlinf family */
393static struct genl_family hwsim_genl_family = {
394 .id = GENL_ID_GENERATE,
395 .hdrsize = 0,
396 .name = "MAC80211_HWSIM",
397 .version = 1,
398 .maxattr = HWSIM_ATTR_MAX,
399};
400
401/* MAC80211_HWSIM netlink policy */
402
403static struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
404 [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC,
405 .len = 6*sizeof(u8) },
406 [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC,
407 .len = 6*sizeof(u8) },
408 [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
409 .len = IEEE80211_MAX_DATA_LEN },
410 [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
411 [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
412 [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
413 [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC,
414 .len = IEEE80211_TX_MAX_RATES*sizeof(
415 struct hwsim_tx_rate)},
416 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
417};
acc1e7a3 418
d0cf9c0d
SH		 419static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
420 struct net_device *dev)
acc1e7a3
JM		 421{
422 /* TODO: allow packet injection */
423 dev_kfree_skb(skb);
6ed10654 424 return NETDEV_TX_OK;
acc1e7a3
JM		 425}
426
b66851c3
TP		 427static inline u64 mac80211_hwsim_get_tsf_raw(void)
428{
429 return ktime_to_us(ktime_get_real());
430}
431
2f40b940
JC		 432static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
433{
b66851c3 434 u64 now = mac80211_hwsim_get_tsf_raw();
2f40b940
JC		 435 return cpu_to_le64(now + data->tsf_offset);
436}
acc1e7a3 437
12ce8ba3 438static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
b66851c3 439 struct ieee80211_vif *vif)
12ce8ba3
JC		 440{
441 struct mac80211_hwsim_data *data = hw->priv;
442 return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
443}
444
445static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
446 struct ieee80211_vif *vif, u64 tsf)
447{
448 struct mac80211_hwsim_data *data = hw->priv;
45034bfb 449 u64 now = mac80211_hwsim_get_tsf(hw, vif);
c51f8783 450 u32 bcn_int = data->beacon_int;
45034bfb
TP		 451 s64 delta = tsf - now;
452
453 data->tsf_offset += delta;
c51f8783
TP		 454 /* adjust after beaconing with new timestamp at old TBTT */
455 data->bcn_delta = do_div(delta, bcn_int);
12ce8ba3
JC		 456}
457
acc1e7a3 458static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
e8261171
JB		 459 struct sk_buff *tx_skb,
460 struct ieee80211_channel *chan)
acc1e7a3
JM		 461{
462 struct mac80211_hwsim_data *data = hw->priv;
463 struct sk_buff *skb;
464 struct hwsim_radiotap_hdr *hdr;
465 u16 flags;
466 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
467 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
468
469 if (!netif_running(hwsim_mon))
470 return;
471
472 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
473 if (skb == NULL)
474 return;
475
476 hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
477 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
478 hdr->hdr.it_pad = 0;
479 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
f248f105
JM		 480 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
481 (1 << IEEE80211_RADIOTAP_RATE) |
2f40b940 482 (1 << IEEE80211_RADIOTAP_TSFT) |
f248f105 483 (1 << IEEE80211_RADIOTAP_CHANNEL));
2f40b940 484 hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
acc1e7a3
JM		 485 hdr->rt_flags = 0;
486 hdr->rt_rate = txrate->bitrate / 5;
e8261171 487 hdr->rt_channel = cpu_to_le16(chan->center_freq);
acc1e7a3
JM		 488 flags = IEEE80211_CHAN_2GHZ;
489 if (txrate->flags & IEEE80211_RATE_ERP_G)
490 flags |= IEEE80211_CHAN_OFDM;
491 else
492 flags |= IEEE80211_CHAN_CCK;
493 hdr->rt_chbitmask = cpu_to_le16(flags);
494
495 skb->dev = hwsim_mon;
496 skb_set_mac_header(skb, 0);
497 skb->ip_summed = CHECKSUM_UNNECESSARY;
498 skb->pkt_type = PACKET_OTHERHOST;
f248f105 499 skb->protocol = htons(ETH_P_802_2);
acc1e7a3
JM		 500 memset(skb->cb, 0, sizeof(skb->cb));
501 netif_rx(skb);
502}
503
504
e8261171
JB		 505static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
506 const u8 *addr)
6c085227 507{
6c085227 508 struct sk_buff *skb;
76a56eb3 509 struct hwsim_radiotap_ack_hdr *hdr;
6c085227
JM		 510 u16 flags;
511 struct ieee80211_hdr *hdr11;
512
513 if (!netif_running(hwsim_mon))
514 return;
515
516 skb = dev_alloc_skb(100);
517 if (skb == NULL)
518 return;
519
76a56eb3 520 hdr = (struct hwsim_radiotap_ack_hdr *) skb_put(skb, sizeof(*hdr));
6c085227
JM		 521 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
522 hdr->hdr.it_pad = 0;
523 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
524 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
525 (1 << IEEE80211_RADIOTAP_CHANNEL));
526 hdr->rt_flags = 0;
76a56eb3 527 hdr->pad = 0;
e8261171 528 hdr->rt_channel = cpu_to_le16(chan->center_freq);
6c085227
JM		 529 flags = IEEE80211_CHAN_2GHZ;
530 hdr->rt_chbitmask = cpu_to_le16(flags);
531
532 hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
533 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
534 IEEE80211_STYPE_ACK);
535 hdr11->duration_id = cpu_to_le16(0);
536 memcpy(hdr11->addr1, addr, ETH_ALEN);
537
538 skb->dev = hwsim_mon;
539 skb_set_mac_header(skb, 0);
540 skb->ip_summed = CHECKSUM_UNNECESSARY;
541 skb->pkt_type = PACKET_OTHERHOST;
542 skb->protocol = htons(ETH_P_802_2);
543 memset(skb->cb, 0, sizeof(skb->cb));
544 netif_rx(skb);
545}
546
547
fc6971d4
JM		 548static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
549 struct sk_buff *skb)
550{
551 switch (data->ps) {
552 case PS_DISABLED:
553 return true;
554 case PS_ENABLED:
555 return false;
556 case PS_AUTO_POLL:
557 /* TODO: accept (some) Beacons by default and other frames only
558 * if pending PS-Poll has been sent */
559 return true;
560 case PS_MANUAL_POLL:
561 /* Allow unicast frames to own address if there is a pending
562 * PS-Poll */
563 if (data->ps_poll_pending &&
564 memcmp(data->hw->wiphy->perm_addr, skb->data + 4,
565 ETH_ALEN) == 0) {
566 data->ps_poll_pending = false;
567 return true;
568 }
569 return false;
570 }
571
572 return true;
573}
574
575
265dc7f0
JM		 576struct mac80211_hwsim_addr_match_data {
577 bool ret;
578 const u8 *addr;
579};
580
581static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
582 struct ieee80211_vif *vif)
583{
584 struct mac80211_hwsim_addr_match_data *md = data;
585 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
586 md->ret = true;
587}
588
589
590static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
591 const u8 *addr)
592{
593 struct mac80211_hwsim_addr_match_data md;
594
595 if (memcmp(addr, data->hw->wiphy->perm_addr, ETH_ALEN) == 0)
596 return true;
597
598 md.ret = false;
599 md.addr = addr;
600 ieee80211_iterate_active_interfaces_atomic(data->hw,
8b2c9824 601 IEEE80211_IFACE_ITER_NORMAL,
265dc7f0
JM		 602 mac80211_hwsim_addr_iter,
603 &md);
604
605 return md.ret;
606}
607
7882513b
JL		 608static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
609 struct sk_buff *my_skb,
15e47304 610 int dst_portid)
7882513b
JL		 611{
612 struct sk_buff *skb;
613 struct mac80211_hwsim_data *data = hw->priv;
614 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
615 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
616 void *msg_head;
617 unsigned int hwsim_flags = 0;
618 int i;
619 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
620
7882513b
JL		 621 if (data->ps != PS_DISABLED)
622 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
623 /* If the queue contains MAX_QUEUE skb's drop some */
624 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
625 /* Droping until WARN_QUEUE level */
626 while (skb_queue_len(&data->pending) >= WARN_QUEUE)
627 skb_dequeue(&data->pending);
628 }
629
58050fce 630 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
7882513b
JL		 631 if (skb == NULL)
632 goto nla_put_failure;
633
634 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
635 HWSIM_CMD_FRAME);
636 if (msg_head == NULL) {
637 printk(KERN_DEBUG "mac80211_hwsim: problem with msg_head\n");
638 goto nla_put_failure;
639 }
640
633c9389
DM		 641 if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
642 sizeof(struct mac_address), data->addresses[1].addr))
643 goto nla_put_failure;
265dc7f0 644
7882513b 645 /* We get the skb->data */
633c9389
DM		 646 if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
647 goto nla_put_failure;
7882513b
JL		 648
649 /* We get the flags for this transmission, and we translate them to
650 wmediumd flags */
651
652 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
653 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
654
655 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
656 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
657
633c9389
DM		 658 if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
659 goto nla_put_failure;
7882513b
JL		 660
661 /* We get the tx control (rate and retries) info*/
662
663 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
664 tx_attempts[i].idx = info->status.rates[i].idx;
665 tx_attempts[i].count = info->status.rates[i].count;
666 }
667
633c9389
DM		 668 if (nla_put(skb, HWSIM_ATTR_TX_INFO,
669 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
670 tx_attempts))
671 goto nla_put_failure;
7882513b
JL		 672
673 /* We create a cookie to identify this skb */
633c9389
DM		 674 if (nla_put_u64(skb, HWSIM_ATTR_COOKIE, (unsigned long) my_skb))
675 goto nla_put_failure;
7882513b
JL		 676
677 genlmsg_end(skb, msg_head);
15e47304 678 genlmsg_unicast(&init_net, skb, dst_portid);
7882513b
JL		 679
680 /* Enqueue the packet */
681 skb_queue_tail(&data->pending, my_skb);
682 return;
683
684nla_put_failure:
c393862f 685 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 686}
687
e8261171
JB		 688static bool hwsim_chans_compat(struct ieee80211_channel *c1,
689 struct ieee80211_channel *c2)
690{
691 if (!c1 || !c2)
692 return false;
693
694 return c1->center_freq == c2->center_freq;
695}
696
697struct tx_iter_data {
698 struct ieee80211_channel *channel;
699 bool receive;
700};
701
702static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
703 struct ieee80211_vif *vif)
704{
705 struct tx_iter_data *data = _data;
706
707 if (!vif->chanctx_conf)
708 return;
709
710 if (!hwsim_chans_compat(data->channel,
4bf88530 711 rcu_dereference(vif->chanctx_conf)->def.chan))
e8261171
JB		 712 return;
713
714 data->receive = true;
715}
716
7882513b 717static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
e8261171
JB		 718 struct sk_buff *skb,
719 struct ieee80211_channel *chan)
acc1e7a3 720{
0e057d73
JB		 721 struct mac80211_hwsim_data *data = hw->priv, *data2;
722 bool ack = false;
e36cfdc9 723 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
acc1e7a3 724 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
e36cfdc9 725 struct ieee80211_rx_status rx_status;
b66851c3 726 u64 now;
acc1e7a3
JM		 727
728 memset(&rx_status, 0, sizeof(rx_status));
f4bda337 729 rx_status.flag |= RX_FLAG_MACTIME_START;
e8261171
JB		 730 rx_status.freq = chan->center_freq;
731 rx_status.band = chan->band;
dad6330d
KB		 732 if (info->control.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) {
733 rx_status.rate_idx =
734 ieee80211_rate_get_vht_mcs(&info->control.rates[0]);
735 rx_status.vht_nss =
736 ieee80211_rate_get_vht_nss(&info->control.rates[0]);
737 rx_status.flag |= RX_FLAG_VHT;
738 } else {
739 rx_status.rate_idx = info->control.rates[0].idx;
740 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
741 rx_status.flag |= RX_FLAG_HT;
742 }
281ed297
JM		 743 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
744 rx_status.flag |= RX_FLAG_40MHZ;
745 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
746 rx_status.flag |= RX_FLAG_SHORT_GI;
4b14c96d 747 /* TODO: simulate real signal strength (and optional packet loss) */
bdd7bd16 748 rx_status.signal = data->power_level - 50;
acc1e7a3 749
fc6971d4
JM		 750 if (data->ps != PS_DISABLED)
751 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
752
90e3012e
JB		 753 /* release the skb's source info */
754 skb_orphan(skb);
c0acf38e 755 skb_dst_drop(skb);
90e3012e
JB		 756 skb->mark = 0;
757 secpath_reset(skb);
758 nf_reset(skb);
759
b66851c3
TP		 760 /*
761 * Get absolute mactime here so all HWs RX at the "same time", and
762 * absolute TX time for beacon mactime so the timestamp matches.
763 * Giving beacons a different mactime than non-beacons looks messy, but
764 * it helps the Toffset be exact and a ~10us mactime discrepancy
765 * probably doesn't really matter.
766 */
767 if (ieee80211_is_beacon(hdr->frame_control) ||
768 ieee80211_is_probe_resp(hdr->frame_control))
769 now = data->abs_bcn_ts;
770 else
771 now = mac80211_hwsim_get_tsf_raw();
772
acc1e7a3 773 /* Copy skb to all enabled radios that are on the current frequency */
0e057d73
JB		 774 spin_lock(&hwsim_radio_lock);
775 list_for_each_entry(data2, &hwsim_radios, list) {
acc1e7a3 776 struct sk_buff *nskb;
e8261171
JB		 777 struct tx_iter_data tx_iter_data = {
778 .receive = false,
779 .channel = chan,
780 };
acc1e7a3 781
0e057d73 782 if (data == data2)
acc1e7a3 783 continue;
0e057d73 784
e8261171
JB		 785 if (!data2->started || (data2->idle && !data2->tmp_chan) ||
786 !hwsim_ps_rx_ok(data2, skb))
acc1e7a3
JM		 787 continue;
788
e8261171
JB		 789 if (!(data->group & data2->group))
790 continue;
791
792 if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
793 !hwsim_chans_compat(chan, data2->channel)) {
794 ieee80211_iterate_active_interfaces_atomic(
8b2c9824
JB		 795 data2->hw, IEEE80211_IFACE_ITER_NORMAL,
796 mac80211_hwsim_tx_iter, &tx_iter_data);
e8261171
JB		 797 if (!tx_iter_data.receive)
798 continue;
799 }
800
90b9e446
JB		 801 /*
802 * reserve some space for our vendor and the normal
803 * radiotap header, since we're copying anyway
804 */
a357d7f9
JB		 805 if (skb->len < PAGE_SIZE && paged_rx) {
806 struct page *page = alloc_page(GFP_ATOMIC);
807
808 if (!page)
809 continue;
810
811 nskb = dev_alloc_skb(128);
812 if (!nskb) {
813 __free_page(page);
814 continue;
815 }
816
817 memcpy(page_address(page), skb->data, skb->len);
818 skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
819 } else {
820 nskb = skb_copy(skb, GFP_ATOMIC);
821 if (!nskb)
822 continue;
823 }
acc1e7a3 824
265dc7f0 825 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
0e057d73 826 ack = true;
f483ad25 827
b66851c3 828 rx_status.mactime = now + data2->tsf_offset;
90b9e446
JB		 829#if 0
830 /*
831 * Don't enable this code by default as the OUI 00:00:00
832 * is registered to Xerox so we shouldn't use it here, it
833 * might find its way into pcap files.
834 * Note that this code requires the headroom in the SKB
835 * that was allocated earlier.
836 */
837 rx_status.vendor_radiotap_oui[0] = 0x00;
838 rx_status.vendor_radiotap_oui[1] = 0x00;
839 rx_status.vendor_radiotap_oui[2] = 0x00;
840 rx_status.vendor_radiotap_subns = 127;
841 /*
842 * Radiotap vendor namespaces can (and should) also be
843 * split into fields by using the standard radiotap
844 * presence bitmap mechanism. Use just BIT(0) here for
845 * the presence bitmap.
846 */
847 rx_status.vendor_radiotap_bitmap = BIT(0);
848 /* We have 8 bytes of (dummy) data */
849 rx_status.vendor_radiotap_len = 8;
850 /* For testing, also require it to be aligned */
851 rx_status.vendor_radiotap_align = 8;
852 /* push the data */
853 memcpy(skb_push(nskb, 8), "ABCDEFGH", 8);
854#endif
855
f1d58c25
JB		 856 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
857 ieee80211_rx_irqsafe(data2->hw, nskb);
acc1e7a3 858 }
0e057d73 859 spin_unlock(&hwsim_radio_lock);
acc1e7a3 860
e36cfdc9
JM		 861 return ack;
862}
863
36323f81
TH		 864static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
865 struct ieee80211_tx_control *control,
866 struct sk_buff *skb)
e36cfdc9 867{
e8261171
JB		 868 struct mac80211_hwsim_data *data = hw->priv;
869 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
870 struct ieee80211_chanctx_conf *chanctx_conf;
871 struct ieee80211_channel *channel;
0e057d73 872 bool ack;
15e47304 873 u32 _portid;
e36cfdc9 874
e8261171 875 if (WARN_ON(skb->len < 10)) {
e36cfdc9 876 /* Should not happen; just a sanity check for addr1 use */
fe0f3cd2 877 ieee80211_free_txskb(hw, skb);
7bb45683 878 return;
e36cfdc9
JM		 879 }
880
e8261171
JB		 881 if (channels == 1) {
882 channel = data->channel;
883 } else if (txi->hw_queue == 4) {
884 channel = data->tmp_chan;
885 } else {
886 chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf);
887 if (chanctx_conf)
4bf88530 888 channel = chanctx_conf->def.chan;
e8261171
JB		 889 else
890 channel = NULL;
891 }
892
893 if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
fe0f3cd2 894 ieee80211_free_txskb(hw, skb);
e8261171
JB		 895 return;
896 }
897
898 if (data->idle && !data->tmp_chan) {
899 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
fe0f3cd2 900 ieee80211_free_txskb(hw, skb);
e8261171
JB		 901 return;
902 }
903
904 if (txi->control.vif)
905 hwsim_check_magic(txi->control.vif);
906 if (control->sta)
907 hwsim_check_sta_magic(control->sta);
908
1eb32179
KB		 909 if (rctbl)
910 ieee80211_get_tx_rates(txi->control.vif, control->sta, skb,
911 txi->control.rates,
912 ARRAY_SIZE(txi->control.rates));
e8261171 913
1eb32179 914 txi->rate_driver_data[0] = channel;
e8261171
JB		 915 mac80211_hwsim_monitor_rx(hw, skb, channel);
916
7882513b 917 /* wmediumd mode check */
15e47304 918 _portid = ACCESS_ONCE(wmediumd_portid);
7882513b 919
15e47304
EB		 920 if (_portid)
921 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
7882513b
JL		 922
923 /* NO wmediumd detected, perfect medium simulation */
e8261171 924 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
7882513b 925
6c085227
JM		 926 if (ack && skb->len >= 16) {
927 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
e8261171 928 mac80211_hwsim_monitor_ack(channel, hdr->addr2);
6c085227 929 }
e36cfdc9 930
e6a9854b 931 ieee80211_tx_info_clear_status(txi);
2a4ffa4c
JC		 932
933 /* frame was transmitted at most favorable rate at first attempt */
934 txi->control.rates[0].count = 1;
935 txi->control.rates[1].idx = -1;
936
e6a9854b
JB		 937 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
938 txi->flags |= IEEE80211_TX_STAT_ACK;
acc1e7a3 939 ieee80211_tx_status_irqsafe(hw, skb);
acc1e7a3
JM		 940}
941
942
943static int mac80211_hwsim_start(struct ieee80211_hw *hw)
944{
945 struct mac80211_hwsim_data *data = hw->priv;
c96c31e4 946 wiphy_debug(hw->wiphy, "%s\n", __func__);
3db1cd5c 947 data->started = true;
acc1e7a3
JM		 948 return 0;
949}
950
951
952static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
953{
954 struct mac80211_hwsim_data *data = hw->priv;
3db1cd5c 955 data->started = false;
01e59e46 956 tasklet_hrtimer_cancel(&data->beacon_timer);
c96c31e4 957 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 958}
959
960
961static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
1ed32e4f 962 struct ieee80211_vif *vif)
acc1e7a3 963{
c96c31e4 964 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 965 __func__, ieee80211_vif_type_p2p(vif),
966 vif->addr);
1ed32e4f 967 hwsim_set_magic(vif);
e8261171
JB		 968
969 vif->cab_queue = 0;
970 vif->hw_queue[IEEE80211_AC_VO] = 0;
971 vif->hw_queue[IEEE80211_AC_VI] = 1;
972 vif->hw_queue[IEEE80211_AC_BE] = 2;
973 vif->hw_queue[IEEE80211_AC_BK] = 3;
974
acc1e7a3
JM		 975 return 0;
976}
977
978
c35d0270
JB		 979static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
980 struct ieee80211_vif *vif,
2ca27bcf
JB		 981 enum nl80211_iftype newtype,
982 bool newp2p)
c35d0270 983{
2ca27bcf 984 newtype = ieee80211_iftype_p2p(newtype, newp2p);
c35d0270
JB		 985 wiphy_debug(hw->wiphy,
986 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
2ca27bcf
JB		 987 __func__, ieee80211_vif_type_p2p(vif),
988 newtype, vif->addr);
c35d0270
JB		 989 hwsim_check_magic(vif);
990
3eb92f6a
JB		 991 /*
992 * interface may change from non-AP to AP in
993 * which case this needs to be set up again
994 */
995 vif->cab_queue = 0;
996
c35d0270
JB		 997 return 0;
998}
999
acc1e7a3 1000static void mac80211_hwsim_remove_interface(
1ed32e4f 1001 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
acc1e7a3 1002{
c96c31e4 1003 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 1004 __func__, ieee80211_vif_type_p2p(vif),
1005 vif->addr);
1ed32e4f
JB		 1006 hwsim_check_magic(vif);
1007 hwsim_clear_magic(vif);
acc1e7a3
JM		 1008}
1009
e8261171
JB		 1010static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
1011 struct sk_buff *skb,
1012 struct ieee80211_channel *chan)
1013{
1014 u32 _pid = ACCESS_ONCE(wmediumd_portid);
1015
1eb32179
KB		 1016 if (rctbl) {
1017 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1018 ieee80211_get_tx_rates(txi->control.vif, NULL, skb,
1019 txi->control.rates,
1020 ARRAY_SIZE(txi->control.rates));
1021 }
1022
e8261171
JB		 1023 mac80211_hwsim_monitor_rx(hw, skb, chan);
1024
1025 if (_pid)
1026 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
1027
1028 mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
1029 dev_kfree_skb(skb);
1030}
acc1e7a3
JM		 1031
1032static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
1033 struct ieee80211_vif *vif)
1034{
b66851c3
TP		 1035 struct mac80211_hwsim_data *data = arg;
1036 struct ieee80211_hw *hw = data->hw;
1037 struct ieee80211_tx_info *info;
1038 struct ieee80211_rate *txrate;
1039 struct ieee80211_mgmt *mgmt;
acc1e7a3 1040 struct sk_buff *skb;
acc1e7a3 1041
8aa21e6f
JB		 1042 hwsim_check_magic(vif);
1043
55b39619 1044 if (vif->type != NL80211_IFTYPE_AP &&
2b2d7795
JB		 1045 vif->type != NL80211_IFTYPE_MESH_POINT &&
1046 vif->type != NL80211_IFTYPE_ADHOC)
acc1e7a3
JM		 1047 return;
1048
1049 skb = ieee80211_beacon_get(hw, vif);
1050 if (skb == NULL)
1051 return;
b66851c3 1052 info = IEEE80211_SKB_CB(skb);
1eb32179
KB		 1053 if (rctbl)
1054 ieee80211_get_tx_rates(vif, NULL, skb,
1055 info->control.rates,
1056 ARRAY_SIZE(info->control.rates));
1057
b66851c3
TP		 1058 txrate = ieee80211_get_tx_rate(hw, info);
1059
1060 mgmt = (struct ieee80211_mgmt *) skb->data;
1061 /* fake header transmission time */
1062 data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
1063 mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
1064 data->tsf_offset +
1065 24 * 8 * 10 / txrate->bitrate);
7882513b 1066
e8261171 1067 mac80211_hwsim_tx_frame(hw, skb,
4bf88530 1068 rcu_dereference(vif->chanctx_conf)->def.chan);
acc1e7a3
JM		 1069}
1070
01e59e46
TP		 1071static enum hrtimer_restart
1072mac80211_hwsim_beacon(struct hrtimer *timer)
acc1e7a3 1073{
01e59e46
TP		 1074 struct mac80211_hwsim_data *data =
1075 container_of(timer, struct mac80211_hwsim_data,
1076 beacon_timer.timer);
1077 struct ieee80211_hw *hw = data->hw;
1078 u64 bcn_int = data->beacon_int;
1079 ktime_t next_bcn;
acc1e7a3 1080
4c4c671a 1081 if (!data->started)
01e59e46 1082 goto out;
acc1e7a3 1083
f248f105 1084 ieee80211_iterate_active_interfaces_atomic(
8b2c9824 1085 hw, IEEE80211_IFACE_ITER_NORMAL,
b66851c3 1086 mac80211_hwsim_beacon_tx, data);
acc1e7a3 1087
c51f8783
TP		 1088 /* beacon at new TBTT + beacon interval */
1089 if (data->bcn_delta) {
1090 bcn_int -= data->bcn_delta;
1091 data->bcn_delta = 0;
1092 }
1093
01e59e46
TP		 1094 next_bcn = ktime_add(hrtimer_get_expires(timer),
1095 ns_to_ktime(bcn_int * 1000));
1096 tasklet_hrtimer_start(&data->beacon_timer, next_bcn, HRTIMER_MODE_ABS);
1097out:
1098 return HRTIMER_NORESTART;
acc1e7a3
JM		 1099}
1100
675a0b04
KB		 1101static const char * const hwsim_chanwidths[] = {
1102 [NL80211_CHAN_WIDTH_20_NOHT] = "noht",
1103 [NL80211_CHAN_WIDTH_20] = "ht20",
1104 [NL80211_CHAN_WIDTH_40] = "ht40",
1105 [NL80211_CHAN_WIDTH_80] = "vht80",
1106 [NL80211_CHAN_WIDTH_80P80] = "vht80p80",
1107 [NL80211_CHAN_WIDTH_160] = "vht160",
0aaffa9b 1108};
acc1e7a3 1109
e8975581 1110static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
acc1e7a3
JM		 1111{
1112 struct mac80211_hwsim_data *data = hw->priv;
e8975581 1113 struct ieee80211_conf *conf = &hw->conf;
0f78231b
JB		 1114 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
1115 [IEEE80211_SMPS_AUTOMATIC] = "auto",
1116 [IEEE80211_SMPS_OFF] = "off",
1117 [IEEE80211_SMPS_STATIC] = "static",
1118 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
1119 };
1120
675a0b04
KB		 1121 if (conf->chandef.chan)
1122 wiphy_debug(hw->wiphy,
1123 "%s (freq=%d(%d - %d)/%s idle=%d ps=%d smps=%s)\n",
1124 __func__,
1125 conf->chandef.chan->center_freq,
1126 conf->chandef.center_freq1,
1127 conf->chandef.center_freq2,
1128 hwsim_chanwidths[conf->chandef.width],
1129 !!(conf->flags & IEEE80211_CONF_IDLE),
1130 !!(conf->flags & IEEE80211_CONF_PS),
1131 smps_modes[conf->smps_mode]);
1132 else
1133 wiphy_debug(hw->wiphy,
1134 "%s (freq=0 idle=%d ps=%d smps=%s)\n",
1135 __func__,
1136 !!(conf->flags & IEEE80211_CONF_IDLE),
1137 !!(conf->flags & IEEE80211_CONF_PS),
1138 smps_modes[conf->smps_mode]);
acc1e7a3 1139
70541839
JM		 1140 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1141
675a0b04 1142 data->channel = conf->chandef.chan;
e8261171
JB		 1143
1144 WARN_ON(data->channel && channels > 1);
1145
bdd7bd16 1146 data->power_level = conf->power_level;
4c4c671a 1147 if (!data->started || !data->beacon_int)
01e59e46
TP		 1148 tasklet_hrtimer_cancel(&data->beacon_timer);
1149 else if (!hrtimer_is_queued(&data->beacon_timer.timer)) {
c51f8783
TP		 1150 u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
1151 u32 bcn_int = data->beacon_int;
1152 u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1153
01e59e46 1154 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1155 ns_to_ktime(until_tbtt * 1000),
01e59e46
TP		 1156 HRTIMER_MODE_REL);
1157 }
acc1e7a3
JM		 1158
1159 return 0;
1160}
1161
1162
1163static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
1164 unsigned int changed_flags,
3ac64bee 1165 unsigned int *total_flags,u64 multicast)
acc1e7a3
JM		 1166{
1167 struct mac80211_hwsim_data *data = hw->priv;
1168
c96c31e4 1169 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 1170
1171 data->rx_filter = 0;
1172 if (*total_flags & FIF_PROMISC_IN_BSS)
1173 data->rx_filter |= FIF_PROMISC_IN_BSS;
1174 if (*total_flags & FIF_ALLMULTI)
1175 data->rx_filter |= FIF_ALLMULTI;
1176
1177 *total_flags = data->rx_filter;
1178}
1179
0bb861e6
JM		 1180static void mac80211_hwsim_bcn_en_iter(void *data, u8 *mac,
1181 struct ieee80211_vif *vif)
1182{
1183 unsigned int *count = data;
1184 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1185
1186 if (vp->bcn_en)
1187 (*count)++;
1188}
1189
8aa21e6f
JB		 1190static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
1191 struct ieee80211_vif *vif,
1192 struct ieee80211_bss_conf *info,
1193 u32 changed)
1194{
fc6971d4 1195 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
57c4d7b4 1196 struct mac80211_hwsim_data *data = hw->priv;
fc6971d4 1197
8aa21e6f 1198 hwsim_check_magic(vif);
fe63bfa3 1199
0bb861e6
JM		 1200 wiphy_debug(hw->wiphy, "%s(changed=0x%x vif->addr=%pM)\n",
1201 __func__, changed, vif->addr);
fe63bfa3 1202
2d0ddec5 1203 if (changed & BSS_CHANGED_BSSID) {
c96c31e4
JP		 1204 wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
1205 __func__, info->bssid);
2d0ddec5
JB		 1206 memcpy(vp->bssid, info->bssid, ETH_ALEN);
1207 }
1208
fe63bfa3 1209 if (changed & BSS_CHANGED_ASSOC) {
c96c31e4
JP		 1210 wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
1211 info->assoc, info->aid);
fc6971d4
JM		 1212 vp->assoc = info->assoc;
1213 vp->aid = info->aid;
fe63bfa3
JM		 1214 }
1215
57c4d7b4 1216 if (changed & BSS_CHANGED_BEACON_INT) {
c96c31e4 1217 wiphy_debug(hw->wiphy, " BCNINT: %d\n", info->beacon_int);
01e59e46
TP		 1218 data->beacon_int = info->beacon_int * 1024;
1219 }
1220
1221 if (changed & BSS_CHANGED_BEACON_ENABLED) {
1222 wiphy_debug(hw->wiphy, " BCN EN: %d\n", info->enable_beacon);
0bb861e6 1223 vp->bcn_en = info->enable_beacon;
01e59e46
TP		 1224 if (data->started &&
1225 !hrtimer_is_queued(&data->beacon_timer.timer) &&
1226 info->enable_beacon) {
c51f8783
TP		 1227 u64 tsf, until_tbtt;
1228 u32 bcn_int;
01e59e46
TP		 1229 if (WARN_ON(!data->beacon_int))
1230 data->beacon_int = 1000 * 1024;
c51f8783
TP		 1231 tsf = mac80211_hwsim_get_tsf(hw, vif);
1232 bcn_int = data->beacon_int;
1233 until_tbtt = bcn_int - do_div(tsf, bcn_int);
01e59e46 1234 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1235 ns_to_ktime(until_tbtt * 1000),
01e59e46 1236 HRTIMER_MODE_REL);
0bb861e6
JM		 1237 } else if (!info->enable_beacon) {
1238 unsigned int count = 0;
cdb1b805 1239 ieee80211_iterate_active_interfaces_atomic(
0bb861e6
JM		 1240 data->hw, IEEE80211_IFACE_ITER_NORMAL,
1241 mac80211_hwsim_bcn_en_iter, &count);
1242 wiphy_debug(hw->wiphy, " beaconing vifs remaining: %u",
1243 count);
1244 if (count == 0)
1245 tasklet_hrtimer_cancel(&data->beacon_timer);
1246 }
57c4d7b4
JB		 1247 }
1248
fe63bfa3 1249 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
c96c31e4
JP		 1250 wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
1251 info->use_cts_prot);
fe63bfa3
JM		 1252 }
1253
1254 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
c96c31e4
JP		 1255 wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
1256 info->use_short_preamble);
fe63bfa3
JM		 1257 }
1258
1259 if (changed & BSS_CHANGED_ERP_SLOT) {
c96c31e4 1260 wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
fe63bfa3
JM		 1261 }
1262
1263 if (changed & BSS_CHANGED_HT) {
4bf88530
JB		 1264 wiphy_debug(hw->wiphy, " HT: op_mode=0x%x\n",
1265 info->ht_operation_mode);
fe63bfa3
JM		 1266 }
1267
1268 if (changed & BSS_CHANGED_BASIC_RATES) {
c96c31e4
JP		 1269 wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
1270 (unsigned long long) info->basic_rates);
fe63bfa3 1271 }
cbc668a7
JB		 1272
1273 if (changed & BSS_CHANGED_TXPOWER)
1274 wiphy_debug(hw->wiphy, " TX Power: %d dBm\n", info->txpower);
8aa21e6f
JB		 1275}
1276
1d669cbf
JB		 1277static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
1278 struct ieee80211_vif *vif,
1279 struct ieee80211_sta *sta)
1280{
1281 hwsim_check_magic(vif);
1282 hwsim_set_sta_magic(sta);
1283
1284 return 0;
1285}
1286
1287static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
1288 struct ieee80211_vif *vif,
1289 struct ieee80211_sta *sta)
1290{
1291 hwsim_check_magic(vif);
1292 hwsim_clear_sta_magic(sta);
1293
1294 return 0;
1295}
1296
8aa21e6f
JB		 1297static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
1298 struct ieee80211_vif *vif,
17741cdc
JB		 1299 enum sta_notify_cmd cmd,
1300 struct ieee80211_sta *sta)
8aa21e6f
JB		 1301{
1302 hwsim_check_magic(vif);
1d669cbf 1303
81c06523 1304 switch (cmd) {
89fad578
CL		 1305 case STA_NOTIFY_SLEEP:
1306 case STA_NOTIFY_AWAKE:
1307 /* TODO: make good use of these flags */
1308 break;
1d669cbf
JB		 1309 default:
1310 WARN(1, "Invalid sta notify: %d\n", cmd);
1311 break;
81c06523
JB		 1312 }
1313}
1314
1315static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
1316 struct ieee80211_sta *sta,
1317 bool set)
1318{
1319 hwsim_check_sta_magic(sta);
1320 return 0;
8aa21e6f 1321}
acc1e7a3 1322
1e898ff8 1323static int mac80211_hwsim_conf_tx(
8a3a3c85
EP		 1324 struct ieee80211_hw *hw,
1325 struct ieee80211_vif *vif, u16 queue,
1e898ff8
JM		 1326 const struct ieee80211_tx_queue_params *params)
1327{
c96c31e4
JP		 1328 wiphy_debug(hw->wiphy,
1329 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1330 __func__, queue,
1331 params->txop, params->cw_min,
1332 params->cw_max, params->aifs);
1e898ff8
JM		 1333 return 0;
1334}
1335
1289723e
HS		 1336static int mac80211_hwsim_get_survey(
1337 struct ieee80211_hw *hw, int idx,
1338 struct survey_info *survey)
1339{
1340 struct ieee80211_conf *conf = &hw->conf;
1341
c96c31e4 1342 wiphy_debug(hw->wiphy, "%s (idx=%d)\n", __func__, idx);
1289723e
HS		 1343
1344 if (idx != 0)
1345 return -ENOENT;
1346
1347 /* Current channel */
675a0b04 1348 survey->channel = conf->chandef.chan;
1289723e
HS		 1349
1350 /*
1351 * Magically conjured noise level --- this is only ok for simulated hardware.
1352 *
1353 * A real driver which cannot determine the real channel noise MUST NOT
1354 * report any noise, especially not a magically conjured one :-)
1355 */
1356 survey->filled = SURVEY_INFO_NOISE_DBM;
1357 survey->noise = -92;
1358
1359 return 0;
1360}
1361
aff89a9b
JB		 1362#ifdef CONFIG_NL80211_TESTMODE
1363/*
1364 * This section contains example code for using netlink
1365 * attributes with the testmode command in nl80211.
1366 */
1367
1368/* These enums need to be kept in sync with userspace */
1369enum hwsim_testmode_attr {
1370 __HWSIM_TM_ATTR_INVALID = 0,
1371 HWSIM_TM_ATTR_CMD = 1,
1372 HWSIM_TM_ATTR_PS = 2,
1373
1374 /* keep last */
1375 __HWSIM_TM_ATTR_AFTER_LAST,
1376 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1377};
1378
1379enum hwsim_testmode_cmd {
1380 HWSIM_TM_CMD_SET_PS = 0,
1381 HWSIM_TM_CMD_GET_PS = 1,
4d6d0ae2
JB		 1382 HWSIM_TM_CMD_STOP_QUEUES = 2,
1383 HWSIM_TM_CMD_WAKE_QUEUES = 3,
aff89a9b
JB		 1384};
1385
1386static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1387 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1388 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1389};
1390
1391static int hwsim_fops_ps_write(void *dat, u64 val);
1392
5bc38193 1393static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
52981cd7 1394 struct ieee80211_vif *vif,
5bc38193 1395 void *data, int len)
aff89a9b
JB		 1396{
1397 struct mac80211_hwsim_data *hwsim = hw->priv;
1398 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1399 struct sk_buff *skb;
1400 int err, ps;
1401
1402 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
1403 hwsim_testmode_policy);
1404 if (err)
1405 return err;
1406
1407 if (!tb[HWSIM_TM_ATTR_CMD])
1408 return -EINVAL;
1409
1410 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1411 case HWSIM_TM_CMD_SET_PS:
1412 if (!tb[HWSIM_TM_ATTR_PS])
1413 return -EINVAL;
1414 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1415 return hwsim_fops_ps_write(hwsim, ps);
1416 case HWSIM_TM_CMD_GET_PS:
1417 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1418 nla_total_size(sizeof(u32)));
1419 if (!skb)
1420 return -ENOMEM;
633c9389
DM		 1421 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
1422 goto nla_put_failure;
aff89a9b 1423 return cfg80211_testmode_reply(skb);
4d6d0ae2
JB		 1424 case HWSIM_TM_CMD_STOP_QUEUES:
1425 ieee80211_stop_queues(hw);
1426 return 0;
1427 case HWSIM_TM_CMD_WAKE_QUEUES:
1428 ieee80211_wake_queues(hw);
1429 return 0;
aff89a9b
JB		 1430 default:
1431 return -EOPNOTSUPP;
1432 }
1433
1434 nla_put_failure:
1435 kfree_skb(skb);
1436 return -ENOBUFS;
1437}
1438#endif
1439
8b73d13a
JB		 1440static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1441 struct ieee80211_vif *vif,
1442 enum ieee80211_ampdu_mlme_action action,
0b01f030
JB		 1443 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
1444 u8 buf_size)
8b73d13a
JB		 1445{
1446 switch (action) {
1447 case IEEE80211_AMPDU_TX_START:
1448 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1449 break;
18b559d5
JB		 1450 case IEEE80211_AMPDU_TX_STOP_CONT:
1451 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1452 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
8b73d13a
JB		 1453 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1454 break;
1455 case IEEE80211_AMPDU_TX_OPERATIONAL:
1456 break;
1457 case IEEE80211_AMPDU_RX_START:
1458 case IEEE80211_AMPDU_RX_STOP:
1459 break;
1460 default:
1461 return -EOPNOTSUPP;
1462 }
1463
1464 return 0;
1465}
1466
39ecc01d 1467static void mac80211_hwsim_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
a80f7c0b 1468{
7882513b 1469 /* Not implemented, queues only on kernel side */
a80f7c0b
JB		 1470}
1471
e8261171 1472static void hw_scan_work(struct work_struct *work)
69068036 1473{
e8261171
JB		 1474 struct mac80211_hwsim_data *hwsim =
1475 container_of(work, struct mac80211_hwsim_data, hw_scan.work);
1476 struct cfg80211_scan_request *req = hwsim->hw_scan_request;
1477 int dwell, i;
69068036 1478
e8261171
JB		 1479 mutex_lock(&hwsim->mutex);
1480 if (hwsim->scan_chan_idx >= req->n_channels) {
1481 wiphy_debug(hwsim->hw->wiphy, "hw scan complete\n");
1482 ieee80211_scan_completed(hwsim->hw, false);
1483 hwsim->hw_scan_request = NULL;
1484 hwsim->hw_scan_vif = NULL;
1485 hwsim->tmp_chan = NULL;
1486 mutex_unlock(&hwsim->mutex);
1487 return;
1488 }
1489
1490 wiphy_debug(hwsim->hw->wiphy, "hw scan %d MHz\n",
1491 req->channels[hwsim->scan_chan_idx]->center_freq);
1492
1493 hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
8fe02e16 1494 if (hwsim->tmp_chan->flags & IEEE80211_CHAN_NO_IR ||
e8261171
JB		 1495 !req->n_ssids) {
1496 dwell = 120;
1497 } else {
1498 dwell = 30;
1499 /* send probes */
1500 for (i = 0; i < req->n_ssids; i++) {
1501 struct sk_buff *probe;
1502
1503 probe = ieee80211_probereq_get(hwsim->hw,
1504 hwsim->hw_scan_vif,
1505 req->ssids[i].ssid,
1506 req->ssids[i].ssid_len,
b9a9ada1 1507 req->ie_len);
e8261171
JB		 1508 if (!probe)
1509 continue;
b9a9ada1
JB		 1510
1511 if (req->ie_len)
1512 memcpy(skb_put(probe, req->ie_len), req->ie,
1513 req->ie_len);
1514
e8261171
JB		 1515 local_bh_disable();
1516 mac80211_hwsim_tx_frame(hwsim->hw, probe,
1517 hwsim->tmp_chan);
1518 local_bh_enable();
1519 }
1520 }
1521 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
1522 msecs_to_jiffies(dwell));
1523 hwsim->scan_chan_idx++;
1524 mutex_unlock(&hwsim->mutex);
69068036
JB		 1525}
1526
1527static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
a060bbfe 1528 struct ieee80211_vif *vif,
69068036
JB		 1529 struct cfg80211_scan_request *req)
1530{
e8261171 1531 struct mac80211_hwsim_data *hwsim = hw->priv;
69068036 1532
e8261171
JB		 1533 mutex_lock(&hwsim->mutex);
1534 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1535 mutex_unlock(&hwsim->mutex);
1536 return -EBUSY;
1537 }
1538 hwsim->hw_scan_request = req;
1539 hwsim->hw_scan_vif = vif;
1540 hwsim->scan_chan_idx = 0;
1541 mutex_unlock(&hwsim->mutex);
69068036 1542
e8261171 1543 wiphy_debug(hw->wiphy, "hwsim hw_scan request\n");
69068036 1544
e8261171 1545 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
69068036
JB		 1546
1547 return 0;
1548}
1549
e8261171
JB		 1550static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
1551 struct ieee80211_vif *vif)
1552{
1553 struct mac80211_hwsim_data *hwsim = hw->priv;
1554
1555 wiphy_debug(hw->wiphy, "hwsim cancel_hw_scan\n");
1556
1557 cancel_delayed_work_sync(&hwsim->hw_scan);
1558
1559 mutex_lock(&hwsim->mutex);
1560 ieee80211_scan_completed(hwsim->hw, true);
1561 hwsim->tmp_chan = NULL;
1562 hwsim->hw_scan_request = NULL;
1563 hwsim->hw_scan_vif = NULL;
1564 mutex_unlock(&hwsim->mutex);
1565}
1566
f74cb0f7
LR		 1567static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw)
1568{
1569 struct mac80211_hwsim_data *hwsim = hw->priv;
1570
1571 mutex_lock(&hwsim->mutex);
1572
1573 if (hwsim->scanning) {
1574 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
1575 goto out;
1576 }
1577
1578 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
1579 hwsim->scanning = true;
1580
1581out:
1582 mutex_unlock(&hwsim->mutex);
1583}
1584
1585static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw)
1586{
1587 struct mac80211_hwsim_data *hwsim = hw->priv;
1588
1589 mutex_lock(&hwsim->mutex);
1590
1591 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
23ff98fc 1592 hwsim->scanning = false;
f74cb0f7
LR		 1593
1594 mutex_unlock(&hwsim->mutex);
1595}
1596
e8261171
JB		 1597static void hw_roc_done(struct work_struct *work)
1598{
1599 struct mac80211_hwsim_data *hwsim =
1600 container_of(work, struct mac80211_hwsim_data, roc_done.work);
1601
1602 mutex_lock(&hwsim->mutex);
1603 ieee80211_remain_on_channel_expired(hwsim->hw);
1604 hwsim->tmp_chan = NULL;
1605 mutex_unlock(&hwsim->mutex);
1606
1607 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC expired\n");
1608}
1609
1610static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
49884568 1611 struct ieee80211_vif *vif,
e8261171 1612 struct ieee80211_channel *chan,
d339d5ca
IP		 1613 int duration,
1614 enum ieee80211_roc_type type)
e8261171
JB		 1615{
1616 struct mac80211_hwsim_data *hwsim = hw->priv;
1617
1618 mutex_lock(&hwsim->mutex);
1619 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1620 mutex_unlock(&hwsim->mutex);
1621 return -EBUSY;
1622 }
1623
1624 hwsim->tmp_chan = chan;
1625 mutex_unlock(&hwsim->mutex);
1626
1627 wiphy_debug(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
1628 chan->center_freq, duration);
1629
1630 ieee80211_ready_on_channel(hw);
1631
1632 ieee80211_queue_delayed_work(hw, &hwsim->roc_done,
1633 msecs_to_jiffies(duration));
1634 return 0;
1635}
1636
1637static int mac80211_hwsim_croc(struct ieee80211_hw *hw)
1638{
1639 struct mac80211_hwsim_data *hwsim = hw->priv;
1640
1641 cancel_delayed_work_sync(&hwsim->roc_done);
1642
1643 mutex_lock(&hwsim->mutex);
1644 hwsim->tmp_chan = NULL;
1645 mutex_unlock(&hwsim->mutex);
1646
1647 wiphy_debug(hw->wiphy, "hwsim ROC canceled\n");
1648
1649 return 0;
1650}
1651
1652static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
1653 struct ieee80211_chanctx_conf *ctx)
1654{
1655 hwsim_set_chanctx_magic(ctx);
4bf88530
JB		 1656 wiphy_debug(hw->wiphy,
1657 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1658 ctx->def.chan->center_freq, ctx->def.width,
1659 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1660 return 0;
1661}
1662
1663static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
1664 struct ieee80211_chanctx_conf *ctx)
1665{
4bf88530
JB		 1666 wiphy_debug(hw->wiphy,
1667 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1668 ctx->def.chan->center_freq, ctx->def.width,
1669 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1670 hwsim_check_chanctx_magic(ctx);
1671 hwsim_clear_chanctx_magic(ctx);
1672}
1673
1674static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
1675 struct ieee80211_chanctx_conf *ctx,
1676 u32 changed)
1677{
1678 hwsim_check_chanctx_magic(ctx);
4bf88530
JB		 1679 wiphy_debug(hw->wiphy,
1680 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1681 ctx->def.chan->center_freq, ctx->def.width,
1682 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1683}
1684
1685static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
1686 struct ieee80211_vif *vif,
1687 struct ieee80211_chanctx_conf *ctx)
1688{
1689 hwsim_check_magic(vif);
1690 hwsim_check_chanctx_magic(ctx);
1691
1692 return 0;
1693}
1694
1695static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
1696 struct ieee80211_vif *vif,
1697 struct ieee80211_chanctx_conf *ctx)
1698{
1699 hwsim_check_magic(vif);
1700 hwsim_check_chanctx_magic(ctx);
1701}
1702
69068036 1703static struct ieee80211_ops mac80211_hwsim_ops =
acc1e7a3
JM		 1704{
1705 .tx = mac80211_hwsim_tx,
1706 .start = mac80211_hwsim_start,
1707 .stop = mac80211_hwsim_stop,
1708 .add_interface = mac80211_hwsim_add_interface,
c35d0270 1709 .change_interface = mac80211_hwsim_change_interface,
acc1e7a3
JM		 1710 .remove_interface = mac80211_hwsim_remove_interface,
1711 .config = mac80211_hwsim_config,
1712 .configure_filter = mac80211_hwsim_configure_filter,
8aa21e6f 1713 .bss_info_changed = mac80211_hwsim_bss_info_changed,
1d669cbf
JB		 1714 .sta_add = mac80211_hwsim_sta_add,
1715 .sta_remove = mac80211_hwsim_sta_remove,
8aa21e6f 1716 .sta_notify = mac80211_hwsim_sta_notify,
81c06523 1717 .set_tim = mac80211_hwsim_set_tim,
1e898ff8 1718 .conf_tx = mac80211_hwsim_conf_tx,
1289723e 1719 .get_survey = mac80211_hwsim_get_survey,
aff89a9b 1720 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
8b73d13a 1721 .ampdu_action = mac80211_hwsim_ampdu_action,
f74cb0f7
LR		 1722 .sw_scan_start = mac80211_hwsim_sw_scan,
1723 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
a80f7c0b 1724 .flush = mac80211_hwsim_flush,
12ce8ba3
JC		 1725 .get_tsf = mac80211_hwsim_get_tsf,
1726 .set_tsf = mac80211_hwsim_set_tsf,
acc1e7a3
JM		 1727};
1728
1729
1730static void mac80211_hwsim_free(void)
1731{
0e057d73 1732 struct list_head tmplist, *i, *tmp;
e603d9d8 1733 struct mac80211_hwsim_data *data, *tmpdata;
0e057d73
JB		 1734
1735 INIT_LIST_HEAD(&tmplist);
1736
1737 spin_lock_bh(&hwsim_radio_lock);
1738 list_for_each_safe(i, tmp, &hwsim_radios)
1739 list_move(i, &tmplist);
1740 spin_unlock_bh(&hwsim_radio_lock);
1741
e603d9d8 1742 list_for_each_entry_safe(data, tmpdata, &tmplist, list) {
70526e54 1743 debugfs_remove_recursive(data->debugfs);
0e057d73 1744 ieee80211_unregister_hw(data->hw);
9ea92774 1745 device_release_driver(data->dev);
0e057d73
JB		 1746 device_unregister(data->dev);
1747 ieee80211_free_hw(data->hw);
acc1e7a3 1748 }
acc1e7a3
JM		 1749 class_destroy(hwsim_class);
1750}
1751
c07fe5ae
SL		 1752static struct platform_driver mac80211_hwsim_driver = {
1753 .driver = {
1754 .name = "mac80211_hwsim",
1755 .owner = THIS_MODULE,
1756 },
acc1e7a3
JM		 1757};
1758
98d2faae
SH		 1759static const struct net_device_ops hwsim_netdev_ops = {
1760 .ndo_start_xmit = hwsim_mon_xmit,
1761 .ndo_change_mtu = eth_change_mtu,
1762 .ndo_set_mac_address = eth_mac_addr,
1763 .ndo_validate_addr = eth_validate_addr,
1764};
acc1e7a3
JM		 1765
1766static void hwsim_mon_setup(struct net_device *dev)
1767{
98d2faae 1768 dev->netdev_ops = &hwsim_netdev_ops;
acc1e7a3
JM		 1769 dev->destructor = free_netdev;
1770 ether_setup(dev);
1771 dev->tx_queue_len = 0;
1772 dev->type = ARPHRD_IEEE80211_RADIOTAP;
1773 memset(dev->dev_addr, 0, ETH_ALEN);
1774 dev->dev_addr[0] = 0x12;
1775}
1776
1777
fc6971d4
JM		 1778static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
1779{
1780 struct mac80211_hwsim_data *data = dat;
1781 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
fc6971d4
JM		 1782 struct sk_buff *skb;
1783 struct ieee80211_pspoll *pspoll;
1784
1785 if (!vp->assoc)
1786 return;
1787
c96c31e4
JP		 1788 wiphy_debug(data->hw->wiphy,
1789 "%s: send PS-Poll to %pM for aid %d\n",
1790 __func__, vp->bssid, vp->aid);
fc6971d4
JM		 1791
1792 skb = dev_alloc_skb(sizeof(*pspoll));
1793 if (!skb)
1794 return;
1795 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
1796 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
1797 IEEE80211_STYPE_PSPOLL |
1798 IEEE80211_FCTL_PM);
1799 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
1800 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
1801 memcpy(pspoll->ta, mac, ETH_ALEN);
7882513b 1802
e8261171
JB		 1803 rcu_read_lock();
1804 mac80211_hwsim_tx_frame(data->hw, skb,
4bf88530 1805 rcu_dereference(vif->chanctx_conf)->def.chan);
e8261171 1806 rcu_read_unlock();
fc6971d4
JM		 1807}
1808
fc6971d4
JM		 1809static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
1810 struct ieee80211_vif *vif, int ps)
1811{
1812 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
fc6971d4
JM		 1813 struct sk_buff *skb;
1814 struct ieee80211_hdr *hdr;
1815
1816 if (!vp->assoc)
1817 return;
1818
c96c31e4
JP		 1819 wiphy_debug(data->hw->wiphy,
1820 "%s: send data::nullfunc to %pM ps=%d\n",
1821 __func__, vp->bssid, ps);
fc6971d4
JM		 1822
1823 skb = dev_alloc_skb(sizeof(*hdr));
1824 if (!skb)
1825 return;
1826 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
1827 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1828 IEEE80211_STYPE_NULLFUNC |
1829 (ps ? IEEE80211_FCTL_PM : 0));
1830 hdr->duration_id = cpu_to_le16(0);
1831 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
1832 memcpy(hdr->addr2, mac, ETH_ALEN);
1833 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
7882513b 1834
e8261171
JB		 1835 rcu_read_lock();
1836 mac80211_hwsim_tx_frame(data->hw, skb,
4bf88530 1837 rcu_dereference(vif->chanctx_conf)->def.chan);
e8261171 1838 rcu_read_unlock();
fc6971d4
JM		 1839}
1840
1841
1842static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
1843 struct ieee80211_vif *vif)
1844{
1845 struct mac80211_hwsim_data *data = dat;
1846 hwsim_send_nullfunc(data, mac, vif, 1);
1847}
1848
1849
1850static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
1851 struct ieee80211_vif *vif)
1852{
1853 struct mac80211_hwsim_data *data = dat;
1854 hwsim_send_nullfunc(data, mac, vif, 0);
1855}
1856
1857
1858static int hwsim_fops_ps_read(void *dat, u64 *val)
1859{
1860 struct mac80211_hwsim_data *data = dat;
1861 *val = data->ps;
1862 return 0;
1863}
1864
1865static int hwsim_fops_ps_write(void *dat, u64 val)
1866{
1867 struct mac80211_hwsim_data *data = dat;
1868 enum ps_mode old_ps;
1869
1870 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
1871 val != PS_MANUAL_POLL)
1872 return -EINVAL;
1873
1874 old_ps = data->ps;
1875 data->ps = val;
1876
1877 if (val == PS_MANUAL_POLL) {
1878 ieee80211_iterate_active_interfaces(data->hw,
8b2c9824 1879 IEEE80211_IFACE_ITER_NORMAL,
fc6971d4
JM		 1880 hwsim_send_ps_poll, data);
1881 data->ps_poll_pending = true;
1882 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
1883 ieee80211_iterate_active_interfaces(data->hw,
8b2c9824 1884 IEEE80211_IFACE_ITER_NORMAL,
fc6971d4
JM		 1885 hwsim_send_nullfunc_ps,
1886 data);
1887 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
1888 ieee80211_iterate_active_interfaces(data->hw,
8b2c9824 1889 IEEE80211_IFACE_ITER_NORMAL,
fc6971d4
JM		 1890 hwsim_send_nullfunc_no_ps,
1891 data);
1892 }
1893
1894 return 0;
1895}
1896
1897DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
1898 "%llu\n");
1899
bba05e3d
JD		 1900static int hwsim_write_simulate_radar(void *dat, u64 val)
1901{
1902 struct mac80211_hwsim_data *data = dat;
1903
1904 ieee80211_radar_detected(data->hw);
1905
1906 return 0;
1907}
1908
1909DEFINE_SIMPLE_ATTRIBUTE(hwsim_simulate_radar, NULL,
1910 hwsim_write_simulate_radar, "%llu\n");
fc6971d4 1911
73606d00
DW		 1912static int hwsim_fops_group_read(void *dat, u64 *val)
1913{
1914 struct mac80211_hwsim_data *data = dat;
1915 *val = data->group;
1916 return 0;
1917}
1918
1919static int hwsim_fops_group_write(void *dat, u64 val)
1920{
1921 struct mac80211_hwsim_data *data = dat;
1922 data->group = val;
1923 return 0;
1924}
1925
1926DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
1927 hwsim_fops_group_read, hwsim_fops_group_write,
1928 "%llx\n");
1929
f483ad25 1930static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(
7882513b
JL		 1931 struct mac_address *addr)
1932{
1933 struct mac80211_hwsim_data *data;
1934 bool _found = false;
1935
1936 spin_lock_bh(&hwsim_radio_lock);
1937 list_for_each_entry(data, &hwsim_radios, list) {
1938 if (memcmp(data->addresses[1].addr, addr,
1939 sizeof(struct mac_address)) == 0) {
1940 _found = true;
1941 break;
1942 }
1943 }
1944 spin_unlock_bh(&hwsim_radio_lock);
1945
1946 if (!_found)
1947 return NULL;
1948
1949 return data;
1950}
1951
1952static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
1953 struct genl_info *info)
1954{
1955
1956 struct ieee80211_hdr *hdr;
1957 struct mac80211_hwsim_data *data2;
1958 struct ieee80211_tx_info *txi;
1959 struct hwsim_tx_rate *tx_attempts;
d0f718c1 1960 unsigned long ret_skb_ptr;
7882513b
JL		 1961 struct sk_buff *skb, *tmp;
1962 struct mac_address *src;
1963 unsigned int hwsim_flags;
1964
1965 int i;
1966 bool found = false;
1967
1968 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
1969 !info->attrs[HWSIM_ATTR_FLAGS] ||
1970 !info->attrs[HWSIM_ATTR_COOKIE] ||
1971 !info->attrs[HWSIM_ATTR_TX_INFO])
1972 goto out;
1973
1974 src = (struct mac_address *)nla_data(
1975 info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
1976 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
1977
d0f718c1 1978 ret_skb_ptr = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
7882513b
JL		 1979
1980 data2 = get_hwsim_data_ref_from_addr(src);
1981
1982 if (data2 == NULL)
1983 goto out;
1984
1985 /* look for the skb matching the cookie passed back from user */
1986 skb_queue_walk_safe(&data2->pending, skb, tmp) {
d0f718c1 1987 if ((unsigned long)skb == ret_skb_ptr) {
7882513b
JL		 1988 skb_unlink(skb, &data2->pending);
1989 found = true;
1990 break;
1991 }
1992 }
1993
1994 /* not found */
1995 if (!found)
1996 goto out;
1997
1998 /* Tx info received because the frame was broadcasted on user space,
1999 so we get all the necessary info: tx attempts and skb control buff */
2000
2001 tx_attempts = (struct hwsim_tx_rate *)nla_data(
2002 info->attrs[HWSIM_ATTR_TX_INFO]);
2003
2004 /* now send back TX status */
2005 txi = IEEE80211_SKB_CB(skb);
2006
7882513b
JL		 2007 ieee80211_tx_info_clear_status(txi);
2008
2009 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
2010 txi->status.rates[i].idx = tx_attempts[i].idx;
2011 txi->status.rates[i].count = tx_attempts[i].count;
2012 /*txi->status.rates[i].flags = 0;*/
2013 }
2014
2015 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
2016
2017 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
2018 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
2019 if (skb->len >= 16) {
2020 hdr = (struct ieee80211_hdr *) skb->data;
e8261171
JB		 2021 mac80211_hwsim_monitor_ack(txi->rate_driver_data[0],
2022 hdr->addr2);
7882513b 2023 }
06cf5c4c 2024 txi->flags |= IEEE80211_TX_STAT_ACK;
7882513b
JL		 2025 }
2026 ieee80211_tx_status_irqsafe(data2->hw, skb);
2027 return 0;
2028out:
2029 return -EINVAL;
2030
2031}
2032
2033static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
2034 struct genl_info *info)
2035{
2036
e8261171 2037 struct mac80211_hwsim_data *data2;
7882513b
JL		 2038 struct ieee80211_rx_status rx_status;
2039 struct mac_address *dst;
2040 int frame_data_len;
2041 char *frame_data;
2042 struct sk_buff *skb = NULL;
2043
2044 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
e8261171
JB		 2045 !info->attrs[HWSIM_ATTR_FRAME] ||
2046 !info->attrs[HWSIM_ATTR_RX_RATE] ||
2047 !info->attrs[HWSIM_ATTR_SIGNAL])
7882513b
JL		 2048 goto out;
2049
2050 dst = (struct mac_address *)nla_data(
2051 info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
2052
2053 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
2054 frame_data = (char *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
2055
2056 /* Allocate new skb here */
2057 skb = alloc_skb(frame_data_len, GFP_KERNEL);
2058 if (skb == NULL)
2059 goto err;
2060
2061 if (frame_data_len <= IEEE80211_MAX_DATA_LEN) {
2062 /* Copy the data */
2063 memcpy(skb_put(skb, frame_data_len), frame_data,
2064 frame_data_len);
2065 } else
2066 goto err;
2067
2068 data2 = get_hwsim_data_ref_from_addr(dst);
2069
2070 if (data2 == NULL)
2071 goto out;
2072
2073 /* check if radio is configured properly */
2074
e8261171 2075 if (data2->idle || !data2->started)
7882513b
JL		 2076 goto out;
2077
2078 /*A frame is received from user space*/
2079 memset(&rx_status, 0, sizeof(rx_status));
2080 rx_status.freq = data2->channel->center_freq;
2081 rx_status.band = data2->channel->band;
2082 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
2083 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
2084
2085 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
2086 ieee80211_rx_irqsafe(data2->hw, skb);
2087
2088 return 0;
2089err:
c393862f 2090 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 2091 goto out;
2092out:
2093 dev_kfree_skb(skb);
2094 return -EINVAL;
2095}
2096
2097static int hwsim_register_received_nl(struct sk_buff *skb_2,
2098 struct genl_info *info)
2099{
2100 if (info == NULL)
2101 goto out;
2102
15e47304 2103 wmediumd_portid = info->snd_portid;
7882513b
JL		 2104
2105 printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
15e47304 2106 "switching to wmediumd mode with pid %d\n", info->snd_portid);
7882513b
JL		 2107
2108 return 0;
2109out:
c393862f 2110 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 2111 return -EINVAL;
2112}
2113
2114/* Generic Netlink operations array */
4534de83 2115static const struct genl_ops hwsim_ops[] = {
7882513b
JL		 2116 {
2117 .cmd = HWSIM_CMD_REGISTER,
2118 .policy = hwsim_genl_policy,
2119 .doit = hwsim_register_received_nl,
2120 .flags = GENL_ADMIN_PERM,
2121 },
2122 {
2123 .cmd = HWSIM_CMD_FRAME,
2124 .policy = hwsim_genl_policy,
2125 .doit = hwsim_cloned_frame_received_nl,
2126 },
2127 {
2128 .cmd = HWSIM_CMD_TX_INFO_FRAME,
2129 .policy = hwsim_genl_policy,
2130 .doit = hwsim_tx_info_frame_received_nl,
2131 },
2132};
2133
2134static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
2135 unsigned long state,
2136 void *_notify)
2137{
2138 struct netlink_notify *notify = _notify;
2139
2140 if (state != NETLINK_URELEASE)
2141 return NOTIFY_DONE;
2142
15e47304 2143 if (notify->portid == wmediumd_portid) {
7882513b
JL		 2144 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
2145 " socket, switching to perfect channel medium\n");
15e47304 2146 wmediumd_portid = 0;
7882513b
JL		 2147 }
2148 return NOTIFY_DONE;
2149
2150}
2151
2152static struct notifier_block hwsim_netlink_notifier = {
2153 .notifier_call = mac80211_hwsim_netlink_notify,
2154};
2155
2156static int hwsim_init_netlink(void)
2157{
2158 int rc;
e8261171
JB		 2159
2160 /* userspace test API hasn't been adjusted for multi-channel */
2161 if (channels > 1)
2162 return 0;
2163
7882513b
JL		 2164 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
2165
c53ed742 2166 rc = genl_register_family_with_ops(&hwsim_genl_family, hwsim_ops);
7882513b
JL		 2167 if (rc)
2168 goto failure;
2169
2170 rc = netlink_register_notifier(&hwsim_netlink_notifier);
2171 if (rc)
2172 goto failure;
2173
2174 return 0;
2175
2176failure:
c393862f 2177 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 2178 return -EINVAL;
2179}
2180
2181static void hwsim_exit_netlink(void)
2182{
2183 int ret;
2184
e8261171
JB		 2185 /* userspace test API hasn't been adjusted for multi-channel */
2186 if (channels > 1)
2187 return;
2188
7882513b
JL		 2189 printk(KERN_INFO "mac80211_hwsim: closing netlink\n");
2190 /* unregister the notifier */
2191 netlink_unregister_notifier(&hwsim_netlink_notifier);
2192 /* unregister the family */
2193 ret = genl_unregister_family(&hwsim_genl_family);
2194 if (ret)
2195 printk(KERN_DEBUG "mac80211_hwsim: "
2196 "unregister family %i\n", ret);
2197}
2198
1ae2fc25
JB		 2199static const struct ieee80211_iface_limit hwsim_if_limits[] = {
2200 { .max = 1, .types = BIT(NL80211_IFTYPE_ADHOC) },
2201 { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) |
2202 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2203#ifdef CONFIG_MAC80211_MESH
2204 BIT(NL80211_IFTYPE_MESH_POINT) |
2205#endif
2206 BIT(NL80211_IFTYPE_AP) |
2207 BIT(NL80211_IFTYPE_P2P_GO) },
8b3d1cc2 2208 { .max = 1, .types = BIT(NL80211_IFTYPE_P2P_DEVICE) },
1ae2fc25
JB		 2209};
2210
bba05e3d
JD		 2211static const struct ieee80211_iface_limit hwsim_if_dfs_limits[] = {
2212 { .max = 8, .types = BIT(NL80211_IFTYPE_AP) },
2213};
2214
2215static struct ieee80211_iface_combination hwsim_if_comb[] = {
2216 {
2217 .limits = hwsim_if_limits,
2218 .n_limits = ARRAY_SIZE(hwsim_if_limits),
2219 .max_interfaces = 2048,
2220 .num_different_channels = 1,
2221 },
2222 {
2223 .limits = hwsim_if_dfs_limits,
2224 .n_limits = ARRAY_SIZE(hwsim_if_dfs_limits),
2225 .max_interfaces = 8,
2226 .num_different_channels = 1,
2227 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
2228 BIT(NL80211_CHAN_WIDTH_20) |
2229 BIT(NL80211_CHAN_WIDTH_40) |
2230 BIT(NL80211_CHAN_WIDTH_80) |
2231 BIT(NL80211_CHAN_WIDTH_160),
2232 }
1ae2fc25
JB		 2233};
2234
acc1e7a3
JM		 2235static int __init init_mac80211_hwsim(void)
2236{
2237 int i, err = 0;
2238 u8 addr[ETH_ALEN];
2239 struct mac80211_hwsim_data *data;
2240 struct ieee80211_hw *hw;
22cad735 2241 enum ieee80211_band band;
acc1e7a3 2242
0e057d73 2243 if (radios < 1 || radios > 100)
acc1e7a3
JM		 2244 return -EINVAL;
2245
e8261171
JB		 2246 if (channels < 1)
2247 return -EINVAL;
2248
2249 if (channels > 1) {
bba05e3d 2250 hwsim_if_comb[0].num_different_channels = channels;
69068036 2251 mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan;
e8261171
JB		 2252 mac80211_hwsim_ops.cancel_hw_scan =
2253 mac80211_hwsim_cancel_hw_scan;
f74cb0f7
LR		 2254 mac80211_hwsim_ops.sw_scan_start = NULL;
2255 mac80211_hwsim_ops.sw_scan_complete = NULL;
e8261171
JB		 2256 mac80211_hwsim_ops.remain_on_channel =
2257 mac80211_hwsim_roc;
2258 mac80211_hwsim_ops.cancel_remain_on_channel =
2259 mac80211_hwsim_croc;
2260 mac80211_hwsim_ops.add_chanctx =
2261 mac80211_hwsim_add_chanctx;
2262 mac80211_hwsim_ops.remove_chanctx =
2263 mac80211_hwsim_remove_chanctx;
2264 mac80211_hwsim_ops.change_chanctx =
2265 mac80211_hwsim_change_chanctx;
2266 mac80211_hwsim_ops.assign_vif_chanctx =
2267 mac80211_hwsim_assign_vif_chanctx;
2268 mac80211_hwsim_ops.unassign_vif_chanctx =
2269 mac80211_hwsim_unassign_vif_chanctx;
f74cb0f7 2270 }
69068036 2271
0e057d73
JB		 2272 spin_lock_init(&hwsim_radio_lock);
2273 INIT_LIST_HEAD(&hwsim_radios);
acc1e7a3 2274
c07fe5ae 2275 err = platform_driver_register(&mac80211_hwsim_driver);
9ea92774
MP		 2276 if (err)
2277 return err;
2278
acc1e7a3 2279 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
9ea92774
MP		 2280 if (IS_ERR(hwsim_class)) {
2281 err = PTR_ERR(hwsim_class);
2282 goto failed_unregister_driver;
2283 }
acc1e7a3
JM		 2284
2285 memset(addr, 0, ETH_ALEN);
2286 addr[0] = 0x02;
2287
0e057d73 2288 for (i = 0; i < radios; i++) {
acc1e7a3
JM		 2289 printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
2290 i);
2291 hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);
0e057d73 2292 if (!hw) {
acc1e7a3
JM		 2293 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
2294 "failed\n");
2295 err = -ENOMEM;
2296 goto failed;
2297 }
acc1e7a3 2298 data = hw->priv;
0e057d73
JB		 2299 data->hw = hw;
2300
6e05d6c4
GKH		 2301 data->dev = device_create(hwsim_class, NULL, 0, hw,
2302 "hwsim%d", i);
acc1e7a3 2303 if (IS_ERR(data->dev)) {
e800f17c 2304 printk(KERN_DEBUG
9ea92774
MP		 2305 "mac80211_hwsim: device_create failed (%ld)\n",
2306 PTR_ERR(data->dev));
acc1e7a3 2307 err = -ENOMEM;
3a33cc10 2308 goto failed_drvdata;
acc1e7a3 2309 }
c07fe5ae 2310 data->dev->driver = &mac80211_hwsim_driver.driver;
9ea92774
MP		 2311 err = device_bind_driver(data->dev);
2312 if (err != 0) {
2313 printk(KERN_DEBUG
2314 "mac80211_hwsim: device_bind_driver failed (%d)\n",
2315 err);
2316 goto failed_hw;
2317 }
2318
7882513b 2319 skb_queue_head_init(&data->pending);
acc1e7a3
JM		 2320
2321 SET_IEEE80211_DEV(hw, data->dev);
2322 addr[3] = i >> 8;
2323 addr[4] = i;
ef15aac6
JB		 2324 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
2325 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
2326 data->addresses[1].addr[0] |= 0x40;
2327 hw->wiphy->n_addresses = 2;
2328 hw->wiphy->addresses = data->addresses;
acc1e7a3 2329
bba05e3d
JD		 2330 hw->wiphy->iface_combinations = hwsim_if_comb;
2331 hw->wiphy->n_iface_combinations = ARRAY_SIZE(hwsim_if_comb);
1ae2fc25 2332
e8261171 2333 if (channels > 1) {
8223d2f5
JB		 2334 hw->wiphy->max_scan_ssids = 255;
2335 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
e8261171 2336 hw->wiphy->max_remain_on_channel_duration = 1000;
bba05e3d
JD		 2337 /* For channels > 1 DFS is not allowed */
2338 hw->wiphy->n_iface_combinations = 1;
8223d2f5
JB		 2339 }
2340
e8261171
JB		 2341 INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
2342 INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
2343
e8261171
JB		 2344 hw->queues = 5;
2345 hw->offchannel_tx_hw_queue = 4;
f59ac048
LR		 2346 hw->wiphy->interface_modes =
2347 BIT(NL80211_IFTYPE_STATION) |
55b39619 2348 BIT(NL80211_IFTYPE_AP) |
2ca27bcf
JB		 2349 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2350 BIT(NL80211_IFTYPE_P2P_GO) |
2b2d7795 2351 BIT(NL80211_IFTYPE_ADHOC) |
8b3d1cc2
JB		 2352 BIT(NL80211_IFTYPE_MESH_POINT) |
2353 BIT(NL80211_IFTYPE_P2P_DEVICE);
acc1e7a3 2354
4b14c96d 2355 hw->flags = IEEE80211_HW_MFP_CAPABLE |
0f78231b
JB		 2356 IEEE80211_HW_SIGNAL_DBM |
2357 IEEE80211_HW_SUPPORTS_STATIC_SMPS |
a75b4363 2358 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
4b6f1dd6 2359 IEEE80211_HW_AMPDU_AGGREGATION |
e8261171 2360 IEEE80211_HW_WANT_MONITOR_VIF |
3751c4ed
KB		 2361 IEEE80211_HW_QUEUE_CONTROL |
2362 IEEE80211_HW_SUPPORTS_HT_CCK_RATES;
1eb32179
KB		 2363 if (rctbl)
2364 hw->flags |= IEEE80211_HW_SUPPORTS_RC_TABLE;
fa77533e 2365
81ddbb5c 2366 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2f5286e8
JB		 2367 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
2368 WIPHY_FLAG_AP_UAPSD;
5fd91aac 2369 hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR;
43bc3e89 2370
8aa21e6f
JB		 2371 /* ask mac80211 to reserve space for magic */
2372 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
81c06523 2373 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
93c78c5d 2374 hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
8aa21e6f 2375
22cad735
LR		 2376 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
2377 sizeof(hwsim_channels_2ghz));
2378 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
2379 sizeof(hwsim_channels_5ghz));
acc1e7a3 2380 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
22cad735
LR		 2381
2382 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
2383 struct ieee80211_supported_band *sband = &data->bands[band];
2384 switch (band) {
2385 case IEEE80211_BAND_2GHZ:
2386 sband->channels = data->channels_2ghz;
2387 sband->n_channels =
2388 ARRAY_SIZE(hwsim_channels_2ghz);
d130eb49
JB		 2389 sband->bitrates = data->rates;
2390 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
22cad735
LR		 2391 break;
2392 case IEEE80211_BAND_5GHZ:
2393 sband->channels = data->channels_5ghz;
2394 sband->n_channels =
2395 ARRAY_SIZE(hwsim_channels_5ghz);
d130eb49
JB		 2396 sband->bitrates = data->rates + 4;
2397 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
22cad735
LR		 2398 break;
2399 default:
1b083ea4 2400 continue;
22cad735
LR		 2401 }
2402
22cad735
LR		 2403 sband->ht_cap.ht_supported = true;
2404 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
2405 IEEE80211_HT_CAP_GRN_FLD |
2406 IEEE80211_HT_CAP_SGI_40 |
2407 IEEE80211_HT_CAP_DSSSCCK40;
2408 sband->ht_cap.ampdu_factor = 0x3;
2409 sband->ht_cap.ampdu_density = 0x6;
2410 memset(&sband->ht_cap.mcs, 0,
2411 sizeof(sband->ht_cap.mcs));
2412 sband->ht_cap.mcs.rx_mask[0] = 0xff;
2413 sband->ht_cap.mcs.rx_mask[1] = 0xff;
2414 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2415
2416 hw->wiphy->bands[band] = sband;
b296005c 2417
b296005c
JB		 2418 sband->vht_cap.vht_supported = true;
2419 sband->vht_cap.cap =
2420 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
2421 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
c17aa52c 2422 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ |
b296005c
JB		 2423 IEEE80211_VHT_CAP_RXLDPC |
2424 IEEE80211_VHT_CAP_SHORT_GI_80 |
2425 IEEE80211_VHT_CAP_SHORT_GI_160 |
2426 IEEE80211_VHT_CAP_TXSTBC |
2427 IEEE80211_VHT_CAP_RXSTBC_1 |
2428 IEEE80211_VHT_CAP_RXSTBC_2 |
2429 IEEE80211_VHT_CAP_RXSTBC_3 |
2430 IEEE80211_VHT_CAP_RXSTBC_4 |
01331040 2431 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
b296005c
JB		 2432 sband->vht_cap.vht_mcs.rx_mcs_map =
2433 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_8 << 0 |
2434 IEEE80211_VHT_MCS_SUPPORT_0_8 << 2 |
2435 IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
2436 IEEE80211_VHT_MCS_SUPPORT_0_8 << 6 |
2437 IEEE80211_VHT_MCS_SUPPORT_0_8 << 8 |
2438 IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
2439 IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
2440 IEEE80211_VHT_MCS_SUPPORT_0_8 << 14);
2441 sband->vht_cap.vht_mcs.tx_mcs_map =
2442 sband->vht_cap.vht_mcs.rx_mcs_map;
22cad735 2443 }
73606d00
DW		 2444 /* By default all radios are belonging to the first group */
2445 data->group = 1;
f74cb0f7 2446 mutex_init(&data->mutex);
acc1e7a3 2447
7882513b
JL		 2448 /* Enable frame retransmissions for lossy channels */
2449 hw->max_rates = 4;
2450 hw->max_rate_tries = 11;
2451
4a5af9c2
LR		 2452 /* Work to be done prior to ieee80211_register_hw() */
2453 switch (regtest) {
2454 case HWSIM_REGTEST_DISABLED:
2455 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
2456 case HWSIM_REGTEST_DRIVER_REG_ALL:
2457 case HWSIM_REGTEST_DIFF_COUNTRY:
2458 /*
2459 * Nothing to be done for driver regulatory domain
2460 * hints prior to ieee80211_register_hw()
2461 */
2462 break;
2463 case HWSIM_REGTEST_WORLD_ROAM:
2464 if (i == 0) {
a2f73b6c
LR		 2465 hw->wiphy->regulatory_flags |=
2466 REGULATORY_CUSTOM_REG;
4a5af9c2
LR		 2467 wiphy_apply_custom_regulatory(hw->wiphy,
2468 &hwsim_world_regdom_custom_01);
2469 }
2470 break;
2471 case HWSIM_REGTEST_CUSTOM_WORLD:
a2f73b6c 2472 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
4a5af9c2
LR		 2473 wiphy_apply_custom_regulatory(hw->wiphy,
2474 &hwsim_world_regdom_custom_01);
2475 break;
2476 case HWSIM_REGTEST_CUSTOM_WORLD_2:
2477 if (i == 0) {
a2f73b6c
LR		 2478 hw->wiphy->regulatory_flags |=
2479 REGULATORY_CUSTOM_REG;
4a5af9c2
LR		 2480 wiphy_apply_custom_regulatory(hw->wiphy,
2481 &hwsim_world_regdom_custom_01);
2482 } else if (i == 1) {
a2f73b6c
LR		 2483 hw->wiphy->regulatory_flags |=
2484 REGULATORY_CUSTOM_REG;
4a5af9c2
LR		 2485 wiphy_apply_custom_regulatory(hw->wiphy,
2486 &hwsim_world_regdom_custom_02);
2487 }
2488 break;
2489 case HWSIM_REGTEST_STRICT_ALL:
a2f73b6c 2490 hw->wiphy->regulatory_flags |= REGULATORY_STRICT_REG;
4a5af9c2
LR		 2491 break;
2492 case HWSIM_REGTEST_STRICT_FOLLOW:
2493 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
2494 if (i == 0)
a2f73b6c
LR		 2495 hw->wiphy->regulatory_flags |=
2496 REGULATORY_STRICT_REG;
4a5af9c2
LR		 2497 break;
2498 case HWSIM_REGTEST_ALL:
2499 if (i == 0) {
a2f73b6c
LR		 2500 hw->wiphy->regulatory_flags |=
2501 REGULATORY_CUSTOM_REG;
4a5af9c2
LR		 2502 wiphy_apply_custom_regulatory(hw->wiphy,
2503 &hwsim_world_regdom_custom_01);
2504 } else if (i == 1) {
a2f73b6c
LR		 2505 hw->wiphy->regulatory_flags |=
2506 REGULATORY_CUSTOM_REG;
4a5af9c2
LR		 2507 wiphy_apply_custom_regulatory(hw->wiphy,
2508 &hwsim_world_regdom_custom_02);
2509 } else if (i == 4)
a2f73b6c
LR		 2510 hw->wiphy->regulatory_flags |=
2511 REGULATORY_STRICT_REG;
4a5af9c2
LR		 2512 break;
2513 default:
2514 break;
2515 }
2516
98dfaa57
LR		 2517 /* give the regulatory workqueue a chance to run */
2518 if (regtest)
2519 schedule_timeout_interruptible(1);
acc1e7a3
JM		 2520 err = ieee80211_register_hw(hw);
2521 if (err < 0) {
2522 printk(KERN_DEBUG "mac80211_hwsim: "
2523 "ieee80211_register_hw failed (%d)\n", err);
3a33cc10 2524 goto failed_hw;
acc1e7a3
JM		 2525 }
2526
4a5af9c2
LR		 2527 /* Work to be done after to ieee80211_register_hw() */
2528 switch (regtest) {
2529 case HWSIM_REGTEST_WORLD_ROAM:
2530 case HWSIM_REGTEST_DISABLED:
2531 break;
2532 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
2533 if (!i)
2534 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2535 break;
2536 case HWSIM_REGTEST_DRIVER_REG_ALL:
2537 case HWSIM_REGTEST_STRICT_ALL:
2538 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2539 break;
2540 case HWSIM_REGTEST_DIFF_COUNTRY:
2541 if (i < ARRAY_SIZE(hwsim_alpha2s))
2542 regulatory_hint(hw->wiphy, hwsim_alpha2s[i]);
2543 break;
2544 case HWSIM_REGTEST_CUSTOM_WORLD:
2545 case HWSIM_REGTEST_CUSTOM_WORLD_2:
2546 /*
2547 * Nothing to be done for custom world regulatory
2548 * domains after to ieee80211_register_hw
2549 */
2550 break;
2551 case HWSIM_REGTEST_STRICT_FOLLOW:
2552 if (i == 0)
2553 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2554 break;
2555 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
2556 if (i == 0)
2557 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2558 else if (i == 1)
2559 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
2560 break;
2561 case HWSIM_REGTEST_ALL:
2562 if (i == 2)
2563 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2564 else if (i == 3)
2565 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
2566 else if (i == 4)
2567 regulatory_hint(hw->wiphy, hwsim_alpha2s[2]);
2568 break;
2569 default:
2570 break;
2571 }
2572
c96c31e4
JP		 2573 wiphy_debug(hw->wiphy, "hwaddr %pm registered\n",
2574 hw->wiphy->perm_addr);
acc1e7a3 2575
fc6971d4
JM		 2576 data->debugfs = debugfs_create_dir("hwsim",
2577 hw->wiphy->debugfsdir);
70526e54
JD		 2578 debugfs_create_file("ps", 0666, data->debugfs, data,
2579 &hwsim_fops_ps);
2580 debugfs_create_file("group", 0666, data->debugfs, data,
2581 &hwsim_fops_group);
bba05e3d
JD		 2582 if (channels == 1)
2583 debugfs_create_file("dfs_simulate_radar", 0222,
2584 data->debugfs,
2585 data, &hwsim_simulate_radar);
fc6971d4 2586
01e59e46
TP		 2587 tasklet_hrtimer_init(&data->beacon_timer,
2588 mac80211_hwsim_beacon,
1d940aaa 2589 CLOCK_MONOTONIC_RAW, HRTIMER_MODE_ABS);
0e057d73
JB		 2590
2591 list_add_tail(&data->list, &hwsim_radios);
acc1e7a3
JM		 2592 }
2593
2594 hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
bcdd8220
WY		 2595 if (hwsim_mon == NULL) {
2596 err = -ENOMEM;
acc1e7a3 2597 goto failed;
bcdd8220 2598 }
acc1e7a3 2599
7882513b
JL		 2600 rtnl_lock();
2601
2602 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
3a33cc10 2603 if (err < 0)
acc1e7a3 2604 goto failed_mon;
3a33cc10 2605
7882513b
JL		 2606
2607 err = register_netdevice(hwsim_mon);
2608 if (err < 0)
2609 goto failed_mon;
2610
2611 rtnl_unlock();
2612
2613 err = hwsim_init_netlink();
2614 if (err < 0)
2615 goto failed_nl;
2616
acc1e7a3
JM		 2617 return 0;
2618
7882513b 2619failed_nl:
79012f8b 2620 printk(KERN_DEBUG "mac80211_hwsim: failed initializing netlink\n");
7882513b
JL		 2621 return err;
2622
acc1e7a3
JM		 2623failed_mon:
2624 rtnl_unlock();
2625 free_netdev(hwsim_mon);
3a33cc10
IS		 2626 mac80211_hwsim_free();
2627 return err;
acc1e7a3 2628
3a33cc10
IS		 2629failed_hw:
2630 device_unregister(data->dev);
2631failed_drvdata:
2632 ieee80211_free_hw(hw);
acc1e7a3
JM		 2633failed:
2634 mac80211_hwsim_free();
9ea92774 2635failed_unregister_driver:
c07fe5ae 2636 platform_driver_unregister(&mac80211_hwsim_driver);
acc1e7a3
JM		 2637 return err;
2638}
f8fffc7e 2639module_init(init_mac80211_hwsim);
acc1e7a3
JM		 2640
2641static void __exit exit_mac80211_hwsim(void)
2642{
0e057d73 2643 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
acc1e7a3 2644
7882513b
JL		 2645 hwsim_exit_netlink();
2646
acc1e7a3 2647 mac80211_hwsim_free();
5d416351 2648 unregister_netdev(hwsim_mon);
c07fe5ae 2649 platform_driver_unregister(&mac80211_hwsim_driver);
acc1e7a3 2650}
acc1e7a3 2651module_exit(exit_mac80211_hwsim);
Michael's Linux tree.