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[mirror_ubuntu-zesty-kernel.git] / drivers / net / wireless / mac80211_hwsim.c
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acc1e7a3
JM		 1/*
2 * mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211
3 * Copyright (c) 2008, Jouni Malinen <j@w1.fi>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
8 */
9
10/*
11 * TODO:
2b2d7795
JB		 12 * - Add TSF sync and fix IBSS beacon transmission by adding
13 * competition for "air time" at TBTT
acc1e7a3
JM		 14 * - RX filtering based on filter configuration (data->rx_filter)
15 */
16
0e057d73 17#include <linux/list.h>
5a0e3ad6 18#include <linux/slab.h>
0e057d73 19#include <linux/spinlock.h>
90e3012e
JB		 20#include <net/dst.h>
21#include <net/xfrm.h>
acc1e7a3
JM		 22#include <net/mac80211.h>
23#include <net/ieee80211_radiotap.h>
24#include <linux/if_arp.h>
25#include <linux/rtnetlink.h>
26#include <linux/etherdevice.h>
fc6971d4 27#include <linux/debugfs.h>
acc1e7a3
JM		 28
29MODULE_AUTHOR("Jouni Malinen");
30MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
31MODULE_LICENSE("GPL");
32
33static int radios = 2;
34module_param(radios, int, 0444);
35MODULE_PARM_DESC(radios, "Number of simulated radios");
36
69068036
JB		 37static bool fake_hw_scan;
38module_param(fake_hw_scan, bool, 0444);
39MODULE_PARM_DESC(fake_hw_scan, "Install fake (no-op) hw-scan handler");
40
4a5af9c2
LR		 41/**
42 * enum hwsim_regtest - the type of regulatory tests we offer
43 *
44 * These are the different values you can use for the regtest
45 * module parameter. This is useful to help test world roaming
46 * and the driver regulatory_hint() call and combinations of these.
47 * If you want to do specific alpha2 regulatory domain tests simply
48 * use the userspace regulatory request as that will be respected as
49 * well without the need of this module parameter. This is designed
50 * only for testing the driver regulatory request, world roaming
51 * and all possible combinations.
52 *
53 * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
54 * this is the default value.
55 * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
56 * hint, only one driver regulatory hint will be sent as such the
57 * secondary radios are expected to follow.
58 * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
59 * request with all radios reporting the same regulatory domain.
60 * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
61 * different regulatory domains requests. Expected behaviour is for
62 * an intersection to occur but each device will still use their
63 * respective regulatory requested domains. Subsequent radios will
64 * use the resulting intersection.
25985edc 65 * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We accomplish
4a5af9c2
LR		 66 * this by using a custom beacon-capable regulatory domain for the first
67 * radio. All other device world roam.
68 * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
69 * domain requests. All radios will adhere to this custom world regulatory
70 * domain.
71 * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
72 * domain requests. The first radio will adhere to the first custom world
73 * regulatory domain, the second one to the second custom world regulatory
74 * domain. All other devices will world roam.
75 * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain
76 * settings, only the first radio will send a regulatory domain request
77 * and use strict settings. The rest of the radios are expected to follow.
78 * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
79 * settings. All radios will adhere to this.
80 * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
81 * domain settings, combined with secondary driver regulatory domain
82 * settings. The first radio will get a strict regulatory domain setting
83 * using the first driver regulatory request and the second radio will use
84 * non-strict settings using the second driver regulatory request. All
85 * other devices should follow the intersection created between the
86 * first two.
87 * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
88 * at least 6 radios for a complete test. We will test in this order:
89 * 1 - driver custom world regulatory domain
90 * 2 - second custom world regulatory domain
91 * 3 - first driver regulatory domain request
92 * 4 - second driver regulatory domain request
93 * 5 - strict regulatory domain settings using the third driver regulatory
94 * domain request
95 * 6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
96 * regulatory requests.
97 */
98enum hwsim_regtest {
99 HWSIM_REGTEST_DISABLED = 0,
100 HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1,
101 HWSIM_REGTEST_DRIVER_REG_ALL = 2,
102 HWSIM_REGTEST_DIFF_COUNTRY = 3,
103 HWSIM_REGTEST_WORLD_ROAM = 4,
104 HWSIM_REGTEST_CUSTOM_WORLD = 5,
105 HWSIM_REGTEST_CUSTOM_WORLD_2 = 6,
106 HWSIM_REGTEST_STRICT_FOLLOW = 7,
107 HWSIM_REGTEST_STRICT_ALL = 8,
108 HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9,
109 HWSIM_REGTEST_ALL = 10,
110};
111
112/* Set to one of the HWSIM_REGTEST_* values above */
113static int regtest = HWSIM_REGTEST_DISABLED;
114module_param(regtest, int, 0444);
115MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run");
116
117static const char *hwsim_alpha2s[] = {
118 "FI",
119 "AL",
120 "US",
121 "DE",
122 "JP",
123 "AL",
124};
125
126static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = {
127 .n_reg_rules = 4,
128 .alpha2 = "99",
129 .reg_rules = {
130 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
131 REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
132 REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
133 REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
134 }
135};
136
137static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = {
138 .n_reg_rules = 2,
139 .alpha2 = "99",
140 .reg_rules = {
141 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
142 REG_RULE(5725-10, 5850+10, 40, 0, 30,
143 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
144 }
145};
146
8aa21e6f
JB		 147struct hwsim_vif_priv {
148 u32 magic;
fc6971d4
JM		 149 u8 bssid[ETH_ALEN];
150 bool assoc;
151 u16 aid;
8aa21e6f
JB		 152};
153
154#define HWSIM_VIF_MAGIC 0x69537748
155
156static inline void hwsim_check_magic(struct ieee80211_vif *vif)
157{
158 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
159 WARN_ON(vp->magic != HWSIM_VIF_MAGIC);
160}
161
162static inline void hwsim_set_magic(struct ieee80211_vif *vif)
163{
164 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
165 vp->magic = HWSIM_VIF_MAGIC;
166}
167
168static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
169{
170 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
171 vp->magic = 0;
172}
acc1e7a3 173
81c06523
JB		 174struct hwsim_sta_priv {
175 u32 magic;
176};
177
178#define HWSIM_STA_MAGIC 0x6d537748
179
180static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
181{
182 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
5d6924ea 183 WARN_ON(sp->magic != HWSIM_STA_MAGIC);
81c06523
JB		 184}
185
186static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
187{
188 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
5d6924ea 189 sp->magic = HWSIM_STA_MAGIC;
81c06523
JB		 190}
191
192static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
193{
194 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
195 sp->magic = 0;
196}
197
acc1e7a3
JM		 198static struct class *hwsim_class;
199
acc1e7a3
JM		 200static struct net_device *hwsim_mon; /* global monitor netdev */
201
22cad735
LR		 202#define CHAN2G(_freq) { \
203 .band = IEEE80211_BAND_2GHZ, \
204 .center_freq = (_freq), \
205 .hw_value = (_freq), \
206 .max_power = 20, \
207}
208
209#define CHAN5G(_freq) { \
210 .band = IEEE80211_BAND_5GHZ, \
211 .center_freq = (_freq), \
212 .hw_value = (_freq), \
213 .max_power = 20, \
214}
215
216static const struct ieee80211_channel hwsim_channels_2ghz[] = {
217 CHAN2G(2412), /* Channel 1 */
218 CHAN2G(2417), /* Channel 2 */
219 CHAN2G(2422), /* Channel 3 */
220 CHAN2G(2427), /* Channel 4 */
221 CHAN2G(2432), /* Channel 5 */
222 CHAN2G(2437), /* Channel 6 */
223 CHAN2G(2442), /* Channel 7 */
224 CHAN2G(2447), /* Channel 8 */
225 CHAN2G(2452), /* Channel 9 */
226 CHAN2G(2457), /* Channel 10 */
227 CHAN2G(2462), /* Channel 11 */
228 CHAN2G(2467), /* Channel 12 */
229 CHAN2G(2472), /* Channel 13 */
230 CHAN2G(2484), /* Channel 14 */
231};
acc1e7a3 232
22cad735
LR		 233static const struct ieee80211_channel hwsim_channels_5ghz[] = {
234 CHAN5G(5180), /* Channel 36 */
235 CHAN5G(5200), /* Channel 40 */
236 CHAN5G(5220), /* Channel 44 */
237 CHAN5G(5240), /* Channel 48 */
238
239 CHAN5G(5260), /* Channel 52 */
240 CHAN5G(5280), /* Channel 56 */
241 CHAN5G(5300), /* Channel 60 */
242 CHAN5G(5320), /* Channel 64 */
243
244 CHAN5G(5500), /* Channel 100 */
245 CHAN5G(5520), /* Channel 104 */
246 CHAN5G(5540), /* Channel 108 */
247 CHAN5G(5560), /* Channel 112 */
248 CHAN5G(5580), /* Channel 116 */
249 CHAN5G(5600), /* Channel 120 */
250 CHAN5G(5620), /* Channel 124 */
251 CHAN5G(5640), /* Channel 128 */
252 CHAN5G(5660), /* Channel 132 */
253 CHAN5G(5680), /* Channel 136 */
254 CHAN5G(5700), /* Channel 140 */
255
256 CHAN5G(5745), /* Channel 149 */
257 CHAN5G(5765), /* Channel 153 */
258 CHAN5G(5785), /* Channel 157 */
259 CHAN5G(5805), /* Channel 161 */
260 CHAN5G(5825), /* Channel 165 */
acc1e7a3
JM		 261};
262
263static const struct ieee80211_rate hwsim_rates[] = {
264 { .bitrate = 10 },
265 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
266 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
267 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
268 { .bitrate = 60 },
269 { .bitrate = 90 },
270 { .bitrate = 120 },
271 { .bitrate = 180 },
272 { .bitrate = 240 },
273 { .bitrate = 360 },
274 { .bitrate = 480 },
275 { .bitrate = 540 }
276};
277
0e057d73
JB		 278static spinlock_t hwsim_radio_lock;
279static struct list_head hwsim_radios;
280
acc1e7a3 281struct mac80211_hwsim_data {
0e057d73
JB		 282 struct list_head list;
283 struct ieee80211_hw *hw;
acc1e7a3 284 struct device *dev;
22cad735
LR		 285 struct ieee80211_supported_band bands[2];
286 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
287 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
acc1e7a3
JM		 288 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
289
ef15aac6
JB		 290 struct mac_address addresses[2];
291
acc1e7a3 292 struct ieee80211_channel *channel;
acc1e7a3
JM		 293 unsigned long beacon_int; /* in jiffies unit */
294 unsigned int rx_filter;
f74cb0f7
LR		 295 bool started, idle, scanning;
296 struct mutex mutex;
acc1e7a3 297 struct timer_list beacon_timer;
fc6971d4
JM		 298 enum ps_mode {
299 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
300 } ps;
301 bool ps_poll_pending;
302 struct dentry *debugfs;
303 struct dentry *debugfs_ps;
73606d00
DW		 304
305 /*
306 * Only radios in the same group can communicate together (the
307 * channel has to match too). Each bit represents a group. A
308 * radio can be in more then one group.
309 */
310 u64 group;
311 struct dentry *debugfs_group;
bdd7bd16
BG		 312
313 int power_level;
acc1e7a3
JM		 314};
315
316
317struct hwsim_radiotap_hdr {
318 struct ieee80211_radiotap_header hdr;
319 u8 rt_flags;
320 u8 rt_rate;
321 __le16 rt_channel;
322 __le16 rt_chbitmask;
ba2d3587 323} __packed;
acc1e7a3
JM		 324
325
d0cf9c0d
SH		 326static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
327 struct net_device *dev)
acc1e7a3
JM		 328{
329 /* TODO: allow packet injection */
330 dev_kfree_skb(skb);
6ed10654 331 return NETDEV_TX_OK;
acc1e7a3
JM		 332}
333
334
335static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
336 struct sk_buff *tx_skb)
337{
338 struct mac80211_hwsim_data *data = hw->priv;
339 struct sk_buff *skb;
340 struct hwsim_radiotap_hdr *hdr;
341 u16 flags;
342 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
343 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
344
345 if (!netif_running(hwsim_mon))
346 return;
347
348 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
349 if (skb == NULL)
350 return;
351
352 hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
353 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
354 hdr->hdr.it_pad = 0;
355 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
f248f105
JM		 356 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
357 (1 << IEEE80211_RADIOTAP_RATE) |
358 (1 << IEEE80211_RADIOTAP_CHANNEL));
acc1e7a3
JM		 359 hdr->rt_flags = 0;
360 hdr->rt_rate = txrate->bitrate / 5;
df70b4ac 361 hdr->rt_channel = cpu_to_le16(data->channel->center_freq);
acc1e7a3
JM		 362 flags = IEEE80211_CHAN_2GHZ;
363 if (txrate->flags & IEEE80211_RATE_ERP_G)
364 flags |= IEEE80211_CHAN_OFDM;
365 else
366 flags |= IEEE80211_CHAN_CCK;
367 hdr->rt_chbitmask = cpu_to_le16(flags);
368
369 skb->dev = hwsim_mon;
370 skb_set_mac_header(skb, 0);
371 skb->ip_summed = CHECKSUM_UNNECESSARY;
372 skb->pkt_type = PACKET_OTHERHOST;
f248f105 373 skb->protocol = htons(ETH_P_802_2);
acc1e7a3
JM		 374 memset(skb->cb, 0, sizeof(skb->cb));
375 netif_rx(skb);
376}
377
378
6c085227
JM		 379static void mac80211_hwsim_monitor_ack(struct ieee80211_hw *hw, const u8 *addr)
380{
381 struct mac80211_hwsim_data *data = hw->priv;
382 struct sk_buff *skb;
383 struct hwsim_radiotap_hdr *hdr;
384 u16 flags;
385 struct ieee80211_hdr *hdr11;
386
387 if (!netif_running(hwsim_mon))
388 return;
389
390 skb = dev_alloc_skb(100);
391 if (skb == NULL)
392 return;
393
394 hdr = (struct hwsim_radiotap_hdr *) skb_put(skb, sizeof(*hdr));
395 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
396 hdr->hdr.it_pad = 0;
397 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
398 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
399 (1 << IEEE80211_RADIOTAP_CHANNEL));
400 hdr->rt_flags = 0;
401 hdr->rt_rate = 0;
402 hdr->rt_channel = cpu_to_le16(data->channel->center_freq);
403 flags = IEEE80211_CHAN_2GHZ;
404 hdr->rt_chbitmask = cpu_to_le16(flags);
405
406 hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
407 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
408 IEEE80211_STYPE_ACK);
409 hdr11->duration_id = cpu_to_le16(0);
410 memcpy(hdr11->addr1, addr, ETH_ALEN);
411
412 skb->dev = hwsim_mon;
413 skb_set_mac_header(skb, 0);
414 skb->ip_summed = CHECKSUM_UNNECESSARY;
415 skb->pkt_type = PACKET_OTHERHOST;
416 skb->protocol = htons(ETH_P_802_2);
417 memset(skb->cb, 0, sizeof(skb->cb));
418 netif_rx(skb);
419}
420
421
fc6971d4
JM		 422static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
423 struct sk_buff *skb)
424{
425 switch (data->ps) {
426 case PS_DISABLED:
427 return true;
428 case PS_ENABLED:
429 return false;
430 case PS_AUTO_POLL:
431 /* TODO: accept (some) Beacons by default and other frames only
432 * if pending PS-Poll has been sent */
433 return true;
434 case PS_MANUAL_POLL:
435 /* Allow unicast frames to own address if there is a pending
436 * PS-Poll */
437 if (data->ps_poll_pending &&
438 memcmp(data->hw->wiphy->perm_addr, skb->data + 4,
439 ETH_ALEN) == 0) {
440 data->ps_poll_pending = false;
441 return true;
442 }
443 return false;
444 }
445
446 return true;
447}
448
449
265dc7f0
JM		 450struct mac80211_hwsim_addr_match_data {
451 bool ret;
452 const u8 *addr;
453};
454
455static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
456 struct ieee80211_vif *vif)
457{
458 struct mac80211_hwsim_addr_match_data *md = data;
459 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
460 md->ret = true;
461}
462
463
464static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
465 const u8 *addr)
466{
467 struct mac80211_hwsim_addr_match_data md;
468
469 if (memcmp(addr, data->hw->wiphy->perm_addr, ETH_ALEN) == 0)
470 return true;
471
472 md.ret = false;
473 md.addr = addr;
474 ieee80211_iterate_active_interfaces_atomic(data->hw,
475 mac80211_hwsim_addr_iter,
476 &md);
477
478 return md.ret;
479}
480
481
0e057d73
JB		 482static bool mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
483 struct sk_buff *skb)
acc1e7a3 484{
0e057d73
JB		 485 struct mac80211_hwsim_data *data = hw->priv, *data2;
486 bool ack = false;
e36cfdc9 487 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
acc1e7a3 488 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
e36cfdc9 489 struct ieee80211_rx_status rx_status;
acc1e7a3 490
70541839 491 if (data->idle) {
5db55844 492 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
70541839
JM		 493 return false;
494 }
495
acc1e7a3
JM		 496 memset(&rx_status, 0, sizeof(rx_status));
497 /* TODO: set mactime */
498 rx_status.freq = data->channel->center_freq;
499 rx_status.band = data->channel->band;
e6a9854b 500 rx_status.rate_idx = info->control.rates[0].idx;
4b14c96d 501 /* TODO: simulate real signal strength (and optional packet loss) */
bdd7bd16 502 rx_status.signal = data->power_level - 50;
acc1e7a3 503
fc6971d4
JM		 504 if (data->ps != PS_DISABLED)
505 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
506
90e3012e
JB		 507 /* release the skb's source info */
508 skb_orphan(skb);
c0acf38e 509 skb_dst_drop(skb);
90e3012e
JB		 510 skb->mark = 0;
511 secpath_reset(skb);
512 nf_reset(skb);
513
acc1e7a3 514 /* Copy skb to all enabled radios that are on the current frequency */
0e057d73
JB		 515 spin_lock(&hwsim_radio_lock);
516 list_for_each_entry(data2, &hwsim_radios, list) {
acc1e7a3
JM		 517 struct sk_buff *nskb;
518
0e057d73 519 if (data == data2)
acc1e7a3 520 continue;
0e057d73 521
70541839
JM		 522 if (data2->idle || !data2->started ||
523 !hwsim_ps_rx_ok(data2, skb) ||
4ff17667 524 !data->channel || !data2->channel ||
73606d00
DW		 525 data->channel->center_freq != data2->channel->center_freq ||
526 !(data->group & data2->group))
acc1e7a3
JM		 527 continue;
528
529 nskb = skb_copy(skb, GFP_ATOMIC);
530 if (nskb == NULL)
531 continue;
532
265dc7f0 533 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
0e057d73 534 ack = true;
f1d58c25
JB		 535 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
536 ieee80211_rx_irqsafe(data2->hw, nskb);
acc1e7a3 537 }
0e057d73 538 spin_unlock(&hwsim_radio_lock);
acc1e7a3 539
e36cfdc9
JM		 540 return ack;
541}
542
543
7bb45683 544static void mac80211_hwsim_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
e36cfdc9 545{
0e057d73 546 bool ack;
e36cfdc9
JM		 547 struct ieee80211_tx_info *txi;
548
549 mac80211_hwsim_monitor_rx(hw, skb);
550
551 if (skb->len < 10) {
552 /* Should not happen; just a sanity check for addr1 use */
553 dev_kfree_skb(skb);
7bb45683 554 return;
e36cfdc9
JM		 555 }
556
e36cfdc9 557 ack = mac80211_hwsim_tx_frame(hw, skb);
6c085227
JM		 558 if (ack && skb->len >= 16) {
559 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
560 mac80211_hwsim_monitor_ack(hw, hdr->addr2);
561 }
e36cfdc9 562
acc1e7a3 563 txi = IEEE80211_SKB_CB(skb);
8aa21e6f 564
25d834e1
JB		 565 if (txi->control.vif)
566 hwsim_check_magic(txi->control.vif);
81c06523
JB		 567 if (txi->control.sta)
568 hwsim_check_sta_magic(txi->control.sta);
8aa21e6f 569
e6a9854b
JB		 570 ieee80211_tx_info_clear_status(txi);
571 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
572 txi->flags |= IEEE80211_TX_STAT_ACK;
acc1e7a3 573 ieee80211_tx_status_irqsafe(hw, skb);
acc1e7a3
JM		 574}
575
576
577static int mac80211_hwsim_start(struct ieee80211_hw *hw)
578{
579 struct mac80211_hwsim_data *data = hw->priv;
c96c31e4 580 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 581 data->started = 1;
582 return 0;
583}
584
585
586static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
587{
588 struct mac80211_hwsim_data *data = hw->priv;
589 data->started = 0;
ab1ef980 590 del_timer(&data->beacon_timer);
c96c31e4 591 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 592}
593
594
595static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
1ed32e4f 596 struct ieee80211_vif *vif)
acc1e7a3 597{
c96c31e4 598 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 599 __func__, ieee80211_vif_type_p2p(vif),
600 vif->addr);
1ed32e4f 601 hwsim_set_magic(vif);
acc1e7a3
JM		 602 return 0;
603}
604
605
c35d0270
JB		 606static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
607 struct ieee80211_vif *vif,
2ca27bcf
JB		 608 enum nl80211_iftype newtype,
609 bool newp2p)
c35d0270 610{
2ca27bcf 611 newtype = ieee80211_iftype_p2p(newtype, newp2p);
c35d0270
JB		 612 wiphy_debug(hw->wiphy,
613 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
2ca27bcf
JB		 614 __func__, ieee80211_vif_type_p2p(vif),
615 newtype, vif->addr);
c35d0270
JB		 616 hwsim_check_magic(vif);
617
618 return 0;
619}
620
acc1e7a3 621static void mac80211_hwsim_remove_interface(
1ed32e4f 622 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
acc1e7a3 623{
c96c31e4 624 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 625 __func__, ieee80211_vif_type_p2p(vif),
626 vif->addr);
1ed32e4f
JB		 627 hwsim_check_magic(vif);
628 hwsim_clear_magic(vif);
acc1e7a3
JM		 629}
630
631
632static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
633 struct ieee80211_vif *vif)
634{
635 struct ieee80211_hw *hw = arg;
acc1e7a3 636 struct sk_buff *skb;
acc1e7a3
JM		 637 struct ieee80211_tx_info *info;
638
8aa21e6f
JB		 639 hwsim_check_magic(vif);
640
55b39619 641 if (vif->type != NL80211_IFTYPE_AP &&
2b2d7795
JB		 642 vif->type != NL80211_IFTYPE_MESH_POINT &&
643 vif->type != NL80211_IFTYPE_ADHOC)
acc1e7a3
JM		 644 return;
645
646 skb = ieee80211_beacon_get(hw, vif);
647 if (skb == NULL)
648 return;
649 info = IEEE80211_SKB_CB(skb);
650
651 mac80211_hwsim_monitor_rx(hw, skb);
e36cfdc9 652 mac80211_hwsim_tx_frame(hw, skb);
acc1e7a3
JM		 653 dev_kfree_skb(skb);
654}
655
656
657static void mac80211_hwsim_beacon(unsigned long arg)
658{
659 struct ieee80211_hw *hw = (struct ieee80211_hw *) arg;
660 struct mac80211_hwsim_data *data = hw->priv;
661
4c4c671a 662 if (!data->started)
acc1e7a3
JM		 663 return;
664
f248f105
JM		 665 ieee80211_iterate_active_interfaces_atomic(
666 hw, mac80211_hwsim_beacon_tx, hw);
acc1e7a3
JM		 667
668 data->beacon_timer.expires = jiffies + data->beacon_int;
669 add_timer(&data->beacon_timer);
670}
671
0aaffa9b
JB		 672static const char *hwsim_chantypes[] = {
673 [NL80211_CHAN_NO_HT] = "noht",
674 [NL80211_CHAN_HT20] = "ht20",
675 [NL80211_CHAN_HT40MINUS] = "ht40-",
676 [NL80211_CHAN_HT40PLUS] = "ht40+",
677};
acc1e7a3 678
e8975581 679static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
acc1e7a3
JM		 680{
681 struct mac80211_hwsim_data *data = hw->priv;
e8975581 682 struct ieee80211_conf *conf = &hw->conf;
0f78231b
JB		 683 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
684 [IEEE80211_SMPS_AUTOMATIC] = "auto",
685 [IEEE80211_SMPS_OFF] = "off",
686 [IEEE80211_SMPS_STATIC] = "static",
687 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
688 };
689
c96c31e4
JP		 690 wiphy_debug(hw->wiphy,
691 "%s (freq=%d/%s idle=%d ps=%d smps=%s)\n",
692 __func__,
693 conf->channel->center_freq,
694 hwsim_chantypes[conf->channel_type],
695 !!(conf->flags & IEEE80211_CONF_IDLE),
696 !!(conf->flags & IEEE80211_CONF_PS),
697 smps_modes[conf->smps_mode]);
acc1e7a3 698
70541839
JM		 699 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
700
acc1e7a3 701 data->channel = conf->channel;
bdd7bd16 702 data->power_level = conf->power_level;
4c4c671a 703 if (!data->started || !data->beacon_int)
acc1e7a3
JM		 704 del_timer(&data->beacon_timer);
705 else
706 mod_timer(&data->beacon_timer, jiffies + data->beacon_int);
707
708 return 0;
709}
710
711
712static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
713 unsigned int changed_flags,
3ac64bee 714 unsigned int *total_flags,u64 multicast)
acc1e7a3
JM		 715{
716 struct mac80211_hwsim_data *data = hw->priv;
717
c96c31e4 718 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 719
720 data->rx_filter = 0;
721 if (*total_flags & FIF_PROMISC_IN_BSS)
722 data->rx_filter |= FIF_PROMISC_IN_BSS;
723 if (*total_flags & FIF_ALLMULTI)
724 data->rx_filter |= FIF_ALLMULTI;
725
726 *total_flags = data->rx_filter;
727}
728
8aa21e6f
JB		 729static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
730 struct ieee80211_vif *vif,
731 struct ieee80211_bss_conf *info,
732 u32 changed)
733{
fc6971d4 734 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
57c4d7b4 735 struct mac80211_hwsim_data *data = hw->priv;
fc6971d4 736
8aa21e6f 737 hwsim_check_magic(vif);
fe63bfa3 738
c96c31e4 739 wiphy_debug(hw->wiphy, "%s(changed=0x%x)\n", __func__, changed);
fe63bfa3 740
2d0ddec5 741 if (changed & BSS_CHANGED_BSSID) {
c96c31e4
JP		 742 wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
743 __func__, info->bssid);
2d0ddec5
JB		 744 memcpy(vp->bssid, info->bssid, ETH_ALEN);
745 }
746
fe63bfa3 747 if (changed & BSS_CHANGED_ASSOC) {
c96c31e4
JP		 748 wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
749 info->assoc, info->aid);
fc6971d4
JM		 750 vp->assoc = info->assoc;
751 vp->aid = info->aid;
fe63bfa3
JM		 752 }
753
57c4d7b4 754 if (changed & BSS_CHANGED_BEACON_INT) {
c96c31e4 755 wiphy_debug(hw->wiphy, " BCNINT: %d\n", info->beacon_int);
57c4d7b4 756 data->beacon_int = 1024 * info->beacon_int / 1000 * HZ / 1000;
d91f190c 757 if (WARN_ON(!data->beacon_int))
57c4d7b4 758 data->beacon_int = 1;
ffed1307
JM		 759 if (data->started)
760 mod_timer(&data->beacon_timer,
761 jiffies + data->beacon_int);
57c4d7b4
JB		 762 }
763
fe63bfa3 764 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
c96c31e4
JP		 765 wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
766 info->use_cts_prot);
fe63bfa3
JM		 767 }
768
769 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
c96c31e4
JP		 770 wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
771 info->use_short_preamble);
fe63bfa3
JM		 772 }
773
774 if (changed & BSS_CHANGED_ERP_SLOT) {
c96c31e4 775 wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
fe63bfa3
JM		 776 }
777
778 if (changed & BSS_CHANGED_HT) {
c96c31e4
JP		 779 wiphy_debug(hw->wiphy, " HT: op_mode=0x%x, chantype=%s\n",
780 info->ht_operation_mode,
781 hwsim_chantypes[info->channel_type]);
fe63bfa3
JM		 782 }
783
784 if (changed & BSS_CHANGED_BASIC_RATES) {
c96c31e4
JP		 785 wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
786 (unsigned long long) info->basic_rates);
fe63bfa3 787 }
8aa21e6f
JB		 788}
789
1d669cbf
JB		 790static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
791 struct ieee80211_vif *vif,
792 struct ieee80211_sta *sta)
793{
794 hwsim_check_magic(vif);
795 hwsim_set_sta_magic(sta);
796
797 return 0;
798}
799
800static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
801 struct ieee80211_vif *vif,
802 struct ieee80211_sta *sta)
803{
804 hwsim_check_magic(vif);
805 hwsim_clear_sta_magic(sta);
806
807 return 0;
808}
809
8aa21e6f
JB		 810static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
811 struct ieee80211_vif *vif,
17741cdc
JB		 812 enum sta_notify_cmd cmd,
813 struct ieee80211_sta *sta)
8aa21e6f
JB		 814{
815 hwsim_check_magic(vif);
1d669cbf 816
81c06523 817 switch (cmd) {
89fad578
CL		 818 case STA_NOTIFY_SLEEP:
819 case STA_NOTIFY_AWAKE:
820 /* TODO: make good use of these flags */
821 break;
1d669cbf
JB		 822 default:
823 WARN(1, "Invalid sta notify: %d\n", cmd);
824 break;
81c06523
JB		 825 }
826}
827
828static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
829 struct ieee80211_sta *sta,
830 bool set)
831{
832 hwsim_check_sta_magic(sta);
833 return 0;
8aa21e6f 834}
acc1e7a3 835
1e898ff8
JM		 836static int mac80211_hwsim_conf_tx(
837 struct ieee80211_hw *hw, u16 queue,
838 const struct ieee80211_tx_queue_params *params)
839{
c96c31e4
JP		 840 wiphy_debug(hw->wiphy,
841 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
842 __func__, queue,
843 params->txop, params->cw_min,
844 params->cw_max, params->aifs);
1e898ff8
JM		 845 return 0;
846}
847
1289723e
HS		 848static int mac80211_hwsim_get_survey(
849 struct ieee80211_hw *hw, int idx,
850 struct survey_info *survey)
851{
852 struct ieee80211_conf *conf = &hw->conf;
853
c96c31e4 854 wiphy_debug(hw->wiphy, "%s (idx=%d)\n", __func__, idx);
1289723e
HS		 855
856 if (idx != 0)
857 return -ENOENT;
858
859 /* Current channel */
860 survey->channel = conf->channel;
861
862 /*
863 * Magically conjured noise level --- this is only ok for simulated hardware.
864 *
865 * A real driver which cannot determine the real channel noise MUST NOT
866 * report any noise, especially not a magically conjured one :-)
867 */
868 survey->filled = SURVEY_INFO_NOISE_DBM;
869 survey->noise = -92;
870
871 return 0;
872}
873
aff89a9b
JB		 874#ifdef CONFIG_NL80211_TESTMODE
875/*
876 * This section contains example code for using netlink
877 * attributes with the testmode command in nl80211.
878 */
879
880/* These enums need to be kept in sync with userspace */
881enum hwsim_testmode_attr {
882 __HWSIM_TM_ATTR_INVALID = 0,
883 HWSIM_TM_ATTR_CMD = 1,
884 HWSIM_TM_ATTR_PS = 2,
885
886 /* keep last */
887 __HWSIM_TM_ATTR_AFTER_LAST,
888 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
889};
890
891enum hwsim_testmode_cmd {
892 HWSIM_TM_CMD_SET_PS = 0,
893 HWSIM_TM_CMD_GET_PS = 1,
894};
895
896static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
897 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
898 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
899};
900
901static int hwsim_fops_ps_write(void *dat, u64 val);
902
5bc38193
JB		 903static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
904 void *data, int len)
aff89a9b
JB		 905{
906 struct mac80211_hwsim_data *hwsim = hw->priv;
907 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
908 struct sk_buff *skb;
909 int err, ps;
910
911 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
912 hwsim_testmode_policy);
913 if (err)
914 return err;
915
916 if (!tb[HWSIM_TM_ATTR_CMD])
917 return -EINVAL;
918
919 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
920 case HWSIM_TM_CMD_SET_PS:
921 if (!tb[HWSIM_TM_ATTR_PS])
922 return -EINVAL;
923 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
924 return hwsim_fops_ps_write(hwsim, ps);
925 case HWSIM_TM_CMD_GET_PS:
926 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
927 nla_total_size(sizeof(u32)));
928 if (!skb)
929 return -ENOMEM;
930 NLA_PUT_U32(skb, HWSIM_TM_ATTR_PS, hwsim->ps);
931 return cfg80211_testmode_reply(skb);
932 default:
933 return -EOPNOTSUPP;
934 }
935
936 nla_put_failure:
937 kfree_skb(skb);
938 return -ENOBUFS;
939}
940#endif
941
8b73d13a
JB		 942static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
943 struct ieee80211_vif *vif,
944 enum ieee80211_ampdu_mlme_action action,
0b01f030
JB		 945 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
946 u8 buf_size)
8b73d13a
JB		 947{
948 switch (action) {
949 case IEEE80211_AMPDU_TX_START:
950 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
951 break;
952 case IEEE80211_AMPDU_TX_STOP:
953 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
954 break;
955 case IEEE80211_AMPDU_TX_OPERATIONAL:
956 break;
957 case IEEE80211_AMPDU_RX_START:
958 case IEEE80211_AMPDU_RX_STOP:
959 break;
960 default:
961 return -EOPNOTSUPP;
962 }
963
964 return 0;
965}
966
a80f7c0b
JB		 967static void mac80211_hwsim_flush(struct ieee80211_hw *hw, bool drop)
968{
969 /*
970 * In this special case, there's nothing we need to
971 * do because hwsim does transmission synchronously.
972 * In the future, when it does transmissions via
973 * userspace, we may need to do something.
974 */
975}
976
69068036
JB		 977struct hw_scan_done {
978 struct delayed_work w;
979 struct ieee80211_hw *hw;
980};
8b73d13a 981
69068036
JB		 982static void hw_scan_done(struct work_struct *work)
983{
984 struct hw_scan_done *hsd =
985 container_of(work, struct hw_scan_done, w.work);
986
987 ieee80211_scan_completed(hsd->hw, false);
988 kfree(hsd);
989}
990
991static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
a060bbfe 992 struct ieee80211_vif *vif,
69068036
JB		 993 struct cfg80211_scan_request *req)
994{
995 struct hw_scan_done *hsd = kzalloc(sizeof(*hsd), GFP_KERNEL);
996 int i;
997
998 if (!hsd)
999 return -ENOMEM;
1000
1001 hsd->hw = hw;
1002 INIT_DELAYED_WORK(&hsd->w, hw_scan_done);
1003
f74cb0f7 1004 printk(KERN_DEBUG "hwsim hw_scan request\n");
69068036 1005 for (i = 0; i < req->n_channels; i++)
f74cb0f7 1006 printk(KERN_DEBUG "hwsim hw_scan freq %d\n",
69068036
JB		 1007 req->channels[i]->center_freq);
1008
1009 ieee80211_queue_delayed_work(hw, &hsd->w, 2 * HZ);
1010
1011 return 0;
1012}
1013
f74cb0f7
LR		 1014static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw)
1015{
1016 struct mac80211_hwsim_data *hwsim = hw->priv;
1017
1018 mutex_lock(&hwsim->mutex);
1019
1020 if (hwsim->scanning) {
1021 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
1022 goto out;
1023 }
1024
1025 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
1026 hwsim->scanning = true;
1027
1028out:
1029 mutex_unlock(&hwsim->mutex);
1030}
1031
1032static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw)
1033{
1034 struct mac80211_hwsim_data *hwsim = hw->priv;
1035
1036 mutex_lock(&hwsim->mutex);
1037
1038 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
23ff98fc 1039 hwsim->scanning = false;
f74cb0f7
LR		 1040
1041 mutex_unlock(&hwsim->mutex);
1042}
1043
69068036 1044static struct ieee80211_ops mac80211_hwsim_ops =
acc1e7a3
JM		 1045{
1046 .tx = mac80211_hwsim_tx,
1047 .start = mac80211_hwsim_start,
1048 .stop = mac80211_hwsim_stop,
1049 .add_interface = mac80211_hwsim_add_interface,
c35d0270 1050 .change_interface = mac80211_hwsim_change_interface,
acc1e7a3
JM		 1051 .remove_interface = mac80211_hwsim_remove_interface,
1052 .config = mac80211_hwsim_config,
1053 .configure_filter = mac80211_hwsim_configure_filter,
8aa21e6f 1054 .bss_info_changed = mac80211_hwsim_bss_info_changed,
1d669cbf
JB		 1055 .sta_add = mac80211_hwsim_sta_add,
1056 .sta_remove = mac80211_hwsim_sta_remove,
8aa21e6f 1057 .sta_notify = mac80211_hwsim_sta_notify,
81c06523 1058 .set_tim = mac80211_hwsim_set_tim,
1e898ff8 1059 .conf_tx = mac80211_hwsim_conf_tx,
1289723e 1060 .get_survey = mac80211_hwsim_get_survey,
aff89a9b 1061 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
8b73d13a 1062 .ampdu_action = mac80211_hwsim_ampdu_action,
f74cb0f7
LR		 1063 .sw_scan_start = mac80211_hwsim_sw_scan,
1064 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
a80f7c0b 1065 .flush = mac80211_hwsim_flush,
acc1e7a3
JM		 1066};
1067
1068
1069static void mac80211_hwsim_free(void)
1070{
0e057d73 1071 struct list_head tmplist, *i, *tmp;
e603d9d8 1072 struct mac80211_hwsim_data *data, *tmpdata;
0e057d73
JB		 1073
1074 INIT_LIST_HEAD(&tmplist);
1075
1076 spin_lock_bh(&hwsim_radio_lock);
1077 list_for_each_safe(i, tmp, &hwsim_radios)
1078 list_move(i, &tmplist);
1079 spin_unlock_bh(&hwsim_radio_lock);
1080
e603d9d8 1081 list_for_each_entry_safe(data, tmpdata, &tmplist, list) {
73606d00 1082 debugfs_remove(data->debugfs_group);
fc6971d4
JM		 1083 debugfs_remove(data->debugfs_ps);
1084 debugfs_remove(data->debugfs);
0e057d73
JB		 1085 ieee80211_unregister_hw(data->hw);
1086 device_unregister(data->dev);
1087 ieee80211_free_hw(data->hw);
acc1e7a3 1088 }
acc1e7a3
JM		 1089 class_destroy(hwsim_class);
1090}
1091
1092
1093static struct device_driver mac80211_hwsim_driver = {
1094 .name = "mac80211_hwsim"
1095};
1096
98d2faae
SH		 1097static const struct net_device_ops hwsim_netdev_ops = {
1098 .ndo_start_xmit = hwsim_mon_xmit,
1099 .ndo_change_mtu = eth_change_mtu,
1100 .ndo_set_mac_address = eth_mac_addr,
1101 .ndo_validate_addr = eth_validate_addr,
1102};
acc1e7a3
JM		 1103
1104static void hwsim_mon_setup(struct net_device *dev)
1105{
98d2faae 1106 dev->netdev_ops = &hwsim_netdev_ops;
acc1e7a3
JM		 1107 dev->destructor = free_netdev;
1108 ether_setup(dev);
1109 dev->tx_queue_len = 0;
1110 dev->type = ARPHRD_IEEE80211_RADIOTAP;
1111 memset(dev->dev_addr, 0, ETH_ALEN);
1112 dev->dev_addr[0] = 0x12;
1113}
1114
1115
fc6971d4
JM		 1116static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
1117{
1118 struct mac80211_hwsim_data *data = dat;
1119 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
fc6971d4
JM		 1120 struct sk_buff *skb;
1121 struct ieee80211_pspoll *pspoll;
1122
1123 if (!vp->assoc)
1124 return;
1125
c96c31e4
JP		 1126 wiphy_debug(data->hw->wiphy,
1127 "%s: send PS-Poll to %pM for aid %d\n",
1128 __func__, vp->bssid, vp->aid);
fc6971d4
JM		 1129
1130 skb = dev_alloc_skb(sizeof(*pspoll));
1131 if (!skb)
1132 return;
1133 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
1134 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
1135 IEEE80211_STYPE_PSPOLL |
1136 IEEE80211_FCTL_PM);
1137 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
1138 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
1139 memcpy(pspoll->ta, mac, ETH_ALEN);
4c4c671a 1140 if (!mac80211_hwsim_tx_frame(data->hw, skb))
fc6971d4
JM		 1141 printk(KERN_DEBUG "%s: PS-Poll frame not ack'ed\n", __func__);
1142 dev_kfree_skb(skb);
1143}
1144
1145
1146static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
1147 struct ieee80211_vif *vif, int ps)
1148{
1149 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
fc6971d4
JM		 1150 struct sk_buff *skb;
1151 struct ieee80211_hdr *hdr;
1152
1153 if (!vp->assoc)
1154 return;
1155
c96c31e4
JP		 1156 wiphy_debug(data->hw->wiphy,
1157 "%s: send data::nullfunc to %pM ps=%d\n",
1158 __func__, vp->bssid, ps);
fc6971d4
JM		 1159
1160 skb = dev_alloc_skb(sizeof(*hdr));
1161 if (!skb)
1162 return;
1163 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
1164 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1165 IEEE80211_STYPE_NULLFUNC |
1166 (ps ? IEEE80211_FCTL_PM : 0));
1167 hdr->duration_id = cpu_to_le16(0);
1168 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
1169 memcpy(hdr->addr2, mac, ETH_ALEN);
1170 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
4c4c671a 1171 if (!mac80211_hwsim_tx_frame(data->hw, skb))
fc6971d4
JM		 1172 printk(KERN_DEBUG "%s: nullfunc frame not ack'ed\n", __func__);
1173 dev_kfree_skb(skb);
1174}
1175
1176
1177static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
1178 struct ieee80211_vif *vif)
1179{
1180 struct mac80211_hwsim_data *data = dat;
1181 hwsim_send_nullfunc(data, mac, vif, 1);
1182}
1183
1184
1185static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
1186 struct ieee80211_vif *vif)
1187{
1188 struct mac80211_hwsim_data *data = dat;
1189 hwsim_send_nullfunc(data, mac, vif, 0);
1190}
1191
1192
1193static int hwsim_fops_ps_read(void *dat, u64 *val)
1194{
1195 struct mac80211_hwsim_data *data = dat;
1196 *val = data->ps;
1197 return 0;
1198}
1199
1200static int hwsim_fops_ps_write(void *dat, u64 val)
1201{
1202 struct mac80211_hwsim_data *data = dat;
1203 enum ps_mode old_ps;
1204
1205 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
1206 val != PS_MANUAL_POLL)
1207 return -EINVAL;
1208
1209 old_ps = data->ps;
1210 data->ps = val;
1211
1212 if (val == PS_MANUAL_POLL) {
1213 ieee80211_iterate_active_interfaces(data->hw,
1214 hwsim_send_ps_poll, data);
1215 data->ps_poll_pending = true;
1216 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
1217 ieee80211_iterate_active_interfaces(data->hw,
1218 hwsim_send_nullfunc_ps,
1219 data);
1220 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
1221 ieee80211_iterate_active_interfaces(data->hw,
1222 hwsim_send_nullfunc_no_ps,
1223 data);
1224 }
1225
1226 return 0;
1227}
1228
1229DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
1230 "%llu\n");
1231
1232
73606d00
DW		 1233static int hwsim_fops_group_read(void *dat, u64 *val)
1234{
1235 struct mac80211_hwsim_data *data = dat;
1236 *val = data->group;
1237 return 0;
1238}
1239
1240static int hwsim_fops_group_write(void *dat, u64 val)
1241{
1242 struct mac80211_hwsim_data *data = dat;
1243 data->group = val;
1244 return 0;
1245}
1246
1247DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
1248 hwsim_fops_group_read, hwsim_fops_group_write,
1249 "%llx\n");
1250
acc1e7a3
JM		 1251static int __init init_mac80211_hwsim(void)
1252{
1253 int i, err = 0;
1254 u8 addr[ETH_ALEN];
1255 struct mac80211_hwsim_data *data;
1256 struct ieee80211_hw *hw;
22cad735 1257 enum ieee80211_band band;
acc1e7a3 1258
0e057d73 1259 if (radios < 1 || radios > 100)
acc1e7a3
JM		 1260 return -EINVAL;
1261
f74cb0f7 1262 if (fake_hw_scan) {
69068036 1263 mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan;
f74cb0f7
LR		 1264 mac80211_hwsim_ops.sw_scan_start = NULL;
1265 mac80211_hwsim_ops.sw_scan_complete = NULL;
1266 }
69068036 1267
0e057d73
JB		 1268 spin_lock_init(&hwsim_radio_lock);
1269 INIT_LIST_HEAD(&hwsim_radios);
acc1e7a3
JM		 1270
1271 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
0e057d73 1272 if (IS_ERR(hwsim_class))
acc1e7a3 1273 return PTR_ERR(hwsim_class);
acc1e7a3
JM		 1274
1275 memset(addr, 0, ETH_ALEN);
1276 addr[0] = 0x02;
1277
0e057d73 1278 for (i = 0; i < radios; i++) {
acc1e7a3
JM		 1279 printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
1280 i);
1281 hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);
0e057d73 1282 if (!hw) {
acc1e7a3
JM		 1283 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
1284 "failed\n");
1285 err = -ENOMEM;
1286 goto failed;
1287 }
acc1e7a3 1288 data = hw->priv;
0e057d73
JB		 1289 data->hw = hw;
1290
6e05d6c4
GKH		 1291 data->dev = device_create(hwsim_class, NULL, 0, hw,
1292 "hwsim%d", i);
acc1e7a3 1293 if (IS_ERR(data->dev)) {
e800f17c 1294 printk(KERN_DEBUG
6e05d6c4 1295 "mac80211_hwsim: device_create "
acc1e7a3
JM		 1296 "failed (%ld)\n", PTR_ERR(data->dev));
1297 err = -ENOMEM;
3a33cc10 1298 goto failed_drvdata;
acc1e7a3
JM		 1299 }
1300 data->dev->driver = &mac80211_hwsim_driver;
acc1e7a3
JM		 1301
1302 SET_IEEE80211_DEV(hw, data->dev);
1303 addr[3] = i >> 8;
1304 addr[4] = i;
ef15aac6
JB		 1305 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
1306 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
1307 data->addresses[1].addr[0] |= 0x40;
1308 hw->wiphy->n_addresses = 2;
1309 hw->wiphy->addresses = data->addresses;
acc1e7a3 1310
8223d2f5
JB		 1311 if (fake_hw_scan) {
1312 hw->wiphy->max_scan_ssids = 255;
1313 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
1314 }
1315
acc1e7a3 1316 hw->channel_change_time = 1;
87e8b64e 1317 hw->queues = 4;
f59ac048
LR		 1318 hw->wiphy->interface_modes =
1319 BIT(NL80211_IFTYPE_STATION) |
55b39619 1320 BIT(NL80211_IFTYPE_AP) |
2ca27bcf
JB		 1321 BIT(NL80211_IFTYPE_P2P_CLIENT) |
1322 BIT(NL80211_IFTYPE_P2P_GO) |
2b2d7795 1323 BIT(NL80211_IFTYPE_ADHOC) |
55b39619 1324 BIT(NL80211_IFTYPE_MESH_POINT);
acc1e7a3 1325
4b14c96d 1326 hw->flags = IEEE80211_HW_MFP_CAPABLE |
0f78231b
JB		 1327 IEEE80211_HW_SIGNAL_DBM |
1328 IEEE80211_HW_SUPPORTS_STATIC_SMPS |
a75b4363
JB		 1329 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
1330 IEEE80211_HW_AMPDU_AGGREGATION;
fa77533e 1331
8aa21e6f
JB		 1332 /* ask mac80211 to reserve space for magic */
1333 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
81c06523 1334 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
8aa21e6f 1335
22cad735
LR		 1336 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
1337 sizeof(hwsim_channels_2ghz));
1338 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
1339 sizeof(hwsim_channels_5ghz));
acc1e7a3 1340 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
22cad735
LR		 1341
1342 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
1343 struct ieee80211_supported_band *sband = &data->bands[band];
1344 switch (band) {
1345 case IEEE80211_BAND_2GHZ:
1346 sband->channels = data->channels_2ghz;
1347 sband->n_channels =
1348 ARRAY_SIZE(hwsim_channels_2ghz);
d130eb49
JB		 1349 sband->bitrates = data->rates;
1350 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
22cad735
LR		 1351 break;
1352 case IEEE80211_BAND_5GHZ:
1353 sband->channels = data->channels_5ghz;
1354 sband->n_channels =
1355 ARRAY_SIZE(hwsim_channels_5ghz);
d130eb49
JB		 1356 sband->bitrates = data->rates + 4;
1357 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
22cad735
LR		 1358 break;
1359 default:
1360 break;
1361 }
1362
22cad735
LR		 1363 sband->ht_cap.ht_supported = true;
1364 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
1365 IEEE80211_HT_CAP_GRN_FLD |
1366 IEEE80211_HT_CAP_SGI_40 |
1367 IEEE80211_HT_CAP_DSSSCCK40;
1368 sband->ht_cap.ampdu_factor = 0x3;
1369 sband->ht_cap.ampdu_density = 0x6;
1370 memset(&sband->ht_cap.mcs, 0,
1371 sizeof(sband->ht_cap.mcs));
1372 sband->ht_cap.mcs.rx_mask[0] = 0xff;
1373 sband->ht_cap.mcs.rx_mask[1] = 0xff;
1374 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1375
1376 hw->wiphy->bands[band] = sband;
1377 }
73606d00
DW		 1378 /* By default all radios are belonging to the first group */
1379 data->group = 1;
f74cb0f7 1380 mutex_init(&data->mutex);
acc1e7a3 1381
4a5af9c2
LR		 1382 /* Work to be done prior to ieee80211_register_hw() */
1383 switch (regtest) {
1384 case HWSIM_REGTEST_DISABLED:
1385 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
1386 case HWSIM_REGTEST_DRIVER_REG_ALL:
1387 case HWSIM_REGTEST_DIFF_COUNTRY:
1388 /*
1389 * Nothing to be done for driver regulatory domain
1390 * hints prior to ieee80211_register_hw()
1391 */
1392 break;
1393 case HWSIM_REGTEST_WORLD_ROAM:
1394 if (i == 0) {
5be83de5 1395 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 1396 wiphy_apply_custom_regulatory(hw->wiphy,
1397 &hwsim_world_regdom_custom_01);
1398 }
1399 break;
1400 case HWSIM_REGTEST_CUSTOM_WORLD:
5be83de5 1401 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 1402 wiphy_apply_custom_regulatory(hw->wiphy,
1403 &hwsim_world_regdom_custom_01);
1404 break;
1405 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1406 if (i == 0) {
5be83de5 1407 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 1408 wiphy_apply_custom_regulatory(hw->wiphy,
1409 &hwsim_world_regdom_custom_01);
1410 } else if (i == 1) {
5be83de5 1411 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 1412 wiphy_apply_custom_regulatory(hw->wiphy,
1413 &hwsim_world_regdom_custom_02);
1414 }
1415 break;
1416 case HWSIM_REGTEST_STRICT_ALL:
5be83de5 1417 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
4a5af9c2
LR		 1418 break;
1419 case HWSIM_REGTEST_STRICT_FOLLOW:
1420 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1421 if (i == 0)
5be83de5 1422 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
4a5af9c2
LR		 1423 break;
1424 case HWSIM_REGTEST_ALL:
1425 if (i == 0) {
5be83de5 1426 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 1427 wiphy_apply_custom_regulatory(hw->wiphy,
1428 &hwsim_world_regdom_custom_01);
1429 } else if (i == 1) {
5be83de5 1430 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 1431 wiphy_apply_custom_regulatory(hw->wiphy,
1432 &hwsim_world_regdom_custom_02);
1433 } else if (i == 4)
5be83de5 1434 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
4a5af9c2
LR		 1435 break;
1436 default:
1437 break;
1438 }
1439
98dfaa57
LR		 1440 /* give the regulatory workqueue a chance to run */
1441 if (regtest)
1442 schedule_timeout_interruptible(1);
acc1e7a3
JM		 1443 err = ieee80211_register_hw(hw);
1444 if (err < 0) {
1445 printk(KERN_DEBUG "mac80211_hwsim: "
1446 "ieee80211_register_hw failed (%d)\n", err);
3a33cc10 1447 goto failed_hw;
acc1e7a3
JM		 1448 }
1449
4a5af9c2
LR		 1450 /* Work to be done after to ieee80211_register_hw() */
1451 switch (regtest) {
1452 case HWSIM_REGTEST_WORLD_ROAM:
1453 case HWSIM_REGTEST_DISABLED:
1454 break;
1455 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
1456 if (!i)
1457 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1458 break;
1459 case HWSIM_REGTEST_DRIVER_REG_ALL:
1460 case HWSIM_REGTEST_STRICT_ALL:
1461 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1462 break;
1463 case HWSIM_REGTEST_DIFF_COUNTRY:
1464 if (i < ARRAY_SIZE(hwsim_alpha2s))
1465 regulatory_hint(hw->wiphy, hwsim_alpha2s[i]);
1466 break;
1467 case HWSIM_REGTEST_CUSTOM_WORLD:
1468 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1469 /*
1470 * Nothing to be done for custom world regulatory
1471 * domains after to ieee80211_register_hw
1472 */
1473 break;
1474 case HWSIM_REGTEST_STRICT_FOLLOW:
1475 if (i == 0)
1476 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1477 break;
1478 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1479 if (i == 0)
1480 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1481 else if (i == 1)
1482 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1483 break;
1484 case HWSIM_REGTEST_ALL:
1485 if (i == 2)
1486 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1487 else if (i == 3)
1488 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1489 else if (i == 4)
1490 regulatory_hint(hw->wiphy, hwsim_alpha2s[2]);
1491 break;
1492 default:
1493 break;
1494 }
1495
c96c31e4
JP		 1496 wiphy_debug(hw->wiphy, "hwaddr %pm registered\n",
1497 hw->wiphy->perm_addr);
acc1e7a3 1498
fc6971d4
JM		 1499 data->debugfs = debugfs_create_dir("hwsim",
1500 hw->wiphy->debugfsdir);
1501 data->debugfs_ps = debugfs_create_file("ps", 0666,
1502 data->debugfs, data,
1503 &hwsim_fops_ps);
73606d00
DW		 1504 data->debugfs_group = debugfs_create_file("group", 0666,
1505 data->debugfs, data,
1506 &hwsim_fops_group);
fc6971d4 1507
acc1e7a3
JM		 1508 setup_timer(&data->beacon_timer, mac80211_hwsim_beacon,
1509 (unsigned long) hw);
0e057d73
JB		 1510
1511 list_add_tail(&data->list, &hwsim_radios);
acc1e7a3
JM		 1512 }
1513
1514 hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
1515 if (hwsim_mon == NULL)
1516 goto failed;
1517
1518 rtnl_lock();
1519
1520 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
3a33cc10 1521 if (err < 0)
acc1e7a3 1522 goto failed_mon;
3a33cc10 1523
acc1e7a3
JM		 1524
1525 err = register_netdevice(hwsim_mon);
1526 if (err < 0)
1527 goto failed_mon;
1528
1529 rtnl_unlock();
1530
1531 return 0;
1532
1533failed_mon:
1534 rtnl_unlock();
1535 free_netdev(hwsim_mon);
3a33cc10
IS		 1536 mac80211_hwsim_free();
1537 return err;
acc1e7a3 1538
3a33cc10
IS		 1539failed_hw:
1540 device_unregister(data->dev);
1541failed_drvdata:
1542 ieee80211_free_hw(hw);
acc1e7a3
JM		 1543failed:
1544 mac80211_hwsim_free();
1545 return err;
1546}
1547
1548
1549static void __exit exit_mac80211_hwsim(void)
1550{
0e057d73 1551 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
acc1e7a3 1552
acc1e7a3 1553 mac80211_hwsim_free();
5d416351 1554 unregister_netdev(hwsim_mon);
acc1e7a3
JM		 1555}
1556
1557
1558module_init(init_mac80211_hwsim);
1559module_exit(exit_mac80211_hwsim);
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