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include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit...
[linux-2.6-block.git] / drivers / net / wireless / mac80211_hwsim.c
CommitLineData
acc1e7a3
JM		 1/*
2 * mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211
3 * Copyright (c) 2008, Jouni Malinen <j@w1.fi>
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:
12 * - IBSS mode simulation (Beacon transmission with competition for "air time")
acc1e7a3
JM		 13 * - RX filtering based on filter configuration (data->rx_filter)
14 */
15
0e057d73 16#include <linux/list.h>
5a0e3ad6 17#include <linux/slab.h>
0e057d73 18#include <linux/spinlock.h>
90e3012e
JB		 19#include <net/dst.h>
20#include <net/xfrm.h>
acc1e7a3
JM		 21#include <net/mac80211.h>
22#include <net/ieee80211_radiotap.h>
23#include <linux/if_arp.h>
24#include <linux/rtnetlink.h>
25#include <linux/etherdevice.h>
fc6971d4 26#include <linux/debugfs.h>
acc1e7a3
JM		 27
28MODULE_AUTHOR("Jouni Malinen");
29MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
30MODULE_LICENSE("GPL");
31
32static int radios = 2;
33module_param(radios, int, 0444);
34MODULE_PARM_DESC(radios, "Number of simulated radios");
35
69068036
JB		 36static bool fake_hw_scan;
37module_param(fake_hw_scan, bool, 0444);
38MODULE_PARM_DESC(fake_hw_scan, "Install fake (no-op) hw-scan handler");
39
4a5af9c2
LR		 40/**
41 * enum hwsim_regtest - the type of regulatory tests we offer
42 *
43 * These are the different values you can use for the regtest
44 * module parameter. This is useful to help test world roaming
45 * and the driver regulatory_hint() call and combinations of these.
46 * If you want to do specific alpha2 regulatory domain tests simply
47 * use the userspace regulatory request as that will be respected as
48 * well without the need of this module parameter. This is designed
49 * only for testing the driver regulatory request, world roaming
50 * and all possible combinations.
51 *
52 * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
53 * this is the default value.
54 * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
55 * hint, only one driver regulatory hint will be sent as such the
56 * secondary radios are expected to follow.
57 * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
58 * request with all radios reporting the same regulatory domain.
59 * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
60 * different regulatory domains requests. Expected behaviour is for
61 * an intersection to occur but each device will still use their
62 * respective regulatory requested domains. Subsequent radios will
63 * use the resulting intersection.
64 * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We acomplish
65 * this by using a custom beacon-capable regulatory domain for the first
66 * radio. All other device world roam.
67 * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
68 * domain requests. All radios will adhere to this custom world regulatory
69 * domain.
70 * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
71 * domain requests. The first radio will adhere to the first custom world
72 * regulatory domain, the second one to the second custom world regulatory
73 * domain. All other devices will world roam.
74 * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain
75 * settings, only the first radio will send a regulatory domain request
76 * and use strict settings. The rest of the radios are expected to follow.
77 * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
78 * settings. All radios will adhere to this.
79 * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
80 * domain settings, combined with secondary driver regulatory domain
81 * settings. The first radio will get a strict regulatory domain setting
82 * using the first driver regulatory request and the second radio will use
83 * non-strict settings using the second driver regulatory request. All
84 * other devices should follow the intersection created between the
85 * first two.
86 * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
87 * at least 6 radios for a complete test. We will test in this order:
88 * 1 - driver custom world regulatory domain
89 * 2 - second custom world regulatory domain
90 * 3 - first driver regulatory domain request
91 * 4 - second driver regulatory domain request
92 * 5 - strict regulatory domain settings using the third driver regulatory
93 * domain request
94 * 6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
95 * regulatory requests.
96 */
97enum hwsim_regtest {
98 HWSIM_REGTEST_DISABLED = 0,
99 HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1,
100 HWSIM_REGTEST_DRIVER_REG_ALL = 2,
101 HWSIM_REGTEST_DIFF_COUNTRY = 3,
102 HWSIM_REGTEST_WORLD_ROAM = 4,
103 HWSIM_REGTEST_CUSTOM_WORLD = 5,
104 HWSIM_REGTEST_CUSTOM_WORLD_2 = 6,
105 HWSIM_REGTEST_STRICT_FOLLOW = 7,
106 HWSIM_REGTEST_STRICT_ALL = 8,
107 HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9,
108 HWSIM_REGTEST_ALL = 10,
109};
110
111/* Set to one of the HWSIM_REGTEST_* values above */
112static int regtest = HWSIM_REGTEST_DISABLED;
113module_param(regtest, int, 0444);
114MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run");
115
116static const char *hwsim_alpha2s[] = {
117 "FI",
118 "AL",
119 "US",
120 "DE",
121 "JP",
122 "AL",
123};
124
125static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = {
126 .n_reg_rules = 4,
127 .alpha2 = "99",
128 .reg_rules = {
129 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
130 REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
131 REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
132 REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
133 }
134};
135
136static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = {
137 .n_reg_rules = 2,
138 .alpha2 = "99",
139 .reg_rules = {
140 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
141 REG_RULE(5725-10, 5850+10, 40, 0, 30,
142 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
143 }
144};
145
8aa21e6f
JB		 146struct hwsim_vif_priv {
147 u32 magic;
fc6971d4
JM		 148 u8 bssid[ETH_ALEN];
149 bool assoc;
150 u16 aid;
8aa21e6f
JB		 151};
152
153#define HWSIM_VIF_MAGIC 0x69537748
154
155static inline void hwsim_check_magic(struct ieee80211_vif *vif)
156{
157 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
158 WARN_ON(vp->magic != HWSIM_VIF_MAGIC);
159}
160
161static inline void hwsim_set_magic(struct ieee80211_vif *vif)
162{
163 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
164 vp->magic = HWSIM_VIF_MAGIC;
165}
166
167static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
168{
169 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
170 vp->magic = 0;
171}
acc1e7a3 172
81c06523
JB		 173struct hwsim_sta_priv {
174 u32 magic;
175};
176
177#define HWSIM_STA_MAGIC 0x6d537748
178
179static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
180{
181 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
5d6924ea 182 WARN_ON(sp->magic != HWSIM_STA_MAGIC);
81c06523
JB		 183}
184
185static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
186{
187 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
5d6924ea 188 sp->magic = HWSIM_STA_MAGIC;
81c06523
JB		 189}
190
191static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
192{
193 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
194 sp->magic = 0;
195}
196
acc1e7a3
JM		 197static struct class *hwsim_class;
198
acc1e7a3
JM		 199static struct net_device *hwsim_mon; /* global monitor netdev */
200
22cad735
LR		 201#define CHAN2G(_freq) { \
202 .band = IEEE80211_BAND_2GHZ, \
203 .center_freq = (_freq), \
204 .hw_value = (_freq), \
205 .max_power = 20, \
206}
207
208#define CHAN5G(_freq) { \
209 .band = IEEE80211_BAND_5GHZ, \
210 .center_freq = (_freq), \
211 .hw_value = (_freq), \
212 .max_power = 20, \
213}
214
215static const struct ieee80211_channel hwsim_channels_2ghz[] = {
216 CHAN2G(2412), /* Channel 1 */
217 CHAN2G(2417), /* Channel 2 */
218 CHAN2G(2422), /* Channel 3 */
219 CHAN2G(2427), /* Channel 4 */
220 CHAN2G(2432), /* Channel 5 */
221 CHAN2G(2437), /* Channel 6 */
222 CHAN2G(2442), /* Channel 7 */
223 CHAN2G(2447), /* Channel 8 */
224 CHAN2G(2452), /* Channel 9 */
225 CHAN2G(2457), /* Channel 10 */
226 CHAN2G(2462), /* Channel 11 */
227 CHAN2G(2467), /* Channel 12 */
228 CHAN2G(2472), /* Channel 13 */
229 CHAN2G(2484), /* Channel 14 */
230};
acc1e7a3 231
22cad735
LR		 232static const struct ieee80211_channel hwsim_channels_5ghz[] = {
233 CHAN5G(5180), /* Channel 36 */
234 CHAN5G(5200), /* Channel 40 */
235 CHAN5G(5220), /* Channel 44 */
236 CHAN5G(5240), /* Channel 48 */
237
238 CHAN5G(5260), /* Channel 52 */
239 CHAN5G(5280), /* Channel 56 */
240 CHAN5G(5300), /* Channel 60 */
241 CHAN5G(5320), /* Channel 64 */
242
243 CHAN5G(5500), /* Channel 100 */
244 CHAN5G(5520), /* Channel 104 */
245 CHAN5G(5540), /* Channel 108 */
246 CHAN5G(5560), /* Channel 112 */
247 CHAN5G(5580), /* Channel 116 */
248 CHAN5G(5600), /* Channel 120 */
249 CHAN5G(5620), /* Channel 124 */
250 CHAN5G(5640), /* Channel 128 */
251 CHAN5G(5660), /* Channel 132 */
252 CHAN5G(5680), /* Channel 136 */
253 CHAN5G(5700), /* Channel 140 */
254
255 CHAN5G(5745), /* Channel 149 */
256 CHAN5G(5765), /* Channel 153 */
257 CHAN5G(5785), /* Channel 157 */
258 CHAN5G(5805), /* Channel 161 */
259 CHAN5G(5825), /* Channel 165 */
acc1e7a3
JM		 260};
261
262static const struct ieee80211_rate hwsim_rates[] = {
263 { .bitrate = 10 },
264 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
265 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
266 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
267 { .bitrate = 60 },
268 { .bitrate = 90 },
269 { .bitrate = 120 },
270 { .bitrate = 180 },
271 { .bitrate = 240 },
272 { .bitrate = 360 },
273 { .bitrate = 480 },
274 { .bitrate = 540 }
275};
276
0e057d73
JB		 277static spinlock_t hwsim_radio_lock;
278static struct list_head hwsim_radios;
279
acc1e7a3 280struct mac80211_hwsim_data {
0e057d73
JB		 281 struct list_head list;
282 struct ieee80211_hw *hw;
acc1e7a3 283 struct device *dev;
22cad735
LR		 284 struct ieee80211_supported_band bands[2];
285 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
286 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
acc1e7a3
JM		 287 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
288
ef15aac6
JB		 289 struct mac_address addresses[2];
290
acc1e7a3 291 struct ieee80211_channel *channel;
acc1e7a3
JM		 292 unsigned long beacon_int; /* in jiffies unit */
293 unsigned int rx_filter;
70541839 294 bool started, idle;
acc1e7a3 295 struct timer_list beacon_timer;
fc6971d4
JM		 296 enum ps_mode {
297 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
298 } ps;
299 bool ps_poll_pending;
300 struct dentry *debugfs;
301 struct dentry *debugfs_ps;
73606d00
DW		 302
303 /*
304 * Only radios in the same group can communicate together (the
305 * channel has to match too). Each bit represents a group. A
306 * radio can be in more then one group.
307 */
308 u64 group;
309 struct dentry *debugfs_group;
acc1e7a3
JM		 310};
311
312
313struct hwsim_radiotap_hdr {
314 struct ieee80211_radiotap_header hdr;
315 u8 rt_flags;
316 u8 rt_rate;
317 __le16 rt_channel;
318 __le16 rt_chbitmask;
319} __attribute__ ((packed));
320
321
d0cf9c0d
SH		 322static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
323 struct net_device *dev)
acc1e7a3
JM		 324{
325 /* TODO: allow packet injection */
326 dev_kfree_skb(skb);
6ed10654 327 return NETDEV_TX_OK;
acc1e7a3
JM		 328}
329
330
331static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
332 struct sk_buff *tx_skb)
333{
334 struct mac80211_hwsim_data *data = hw->priv;
335 struct sk_buff *skb;
336 struct hwsim_radiotap_hdr *hdr;
337 u16 flags;
338 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
339 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
340
341 if (!netif_running(hwsim_mon))
342 return;
343
344 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
345 if (skb == NULL)
346 return;
347
348 hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
349 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
350 hdr->hdr.it_pad = 0;
351 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
f248f105
JM		 352 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
353 (1 << IEEE80211_RADIOTAP_RATE) |
354 (1 << IEEE80211_RADIOTAP_CHANNEL));
acc1e7a3
JM		 355 hdr->rt_flags = 0;
356 hdr->rt_rate = txrate->bitrate / 5;
df70b4ac 357 hdr->rt_channel = cpu_to_le16(data->channel->center_freq);
acc1e7a3
JM		 358 flags = IEEE80211_CHAN_2GHZ;
359 if (txrate->flags & IEEE80211_RATE_ERP_G)
360 flags |= IEEE80211_CHAN_OFDM;
361 else
362 flags |= IEEE80211_CHAN_CCK;
363 hdr->rt_chbitmask = cpu_to_le16(flags);
364
365 skb->dev = hwsim_mon;
366 skb_set_mac_header(skb, 0);
367 skb->ip_summed = CHECKSUM_UNNECESSARY;
368 skb->pkt_type = PACKET_OTHERHOST;
f248f105 369 skb->protocol = htons(ETH_P_802_2);
acc1e7a3
JM		 370 memset(skb->cb, 0, sizeof(skb->cb));
371 netif_rx(skb);
372}
373
374
6c085227
JM		 375static void mac80211_hwsim_monitor_ack(struct ieee80211_hw *hw, const u8 *addr)
376{
377 struct mac80211_hwsim_data *data = hw->priv;
378 struct sk_buff *skb;
379 struct hwsim_radiotap_hdr *hdr;
380 u16 flags;
381 struct ieee80211_hdr *hdr11;
382
383 if (!netif_running(hwsim_mon))
384 return;
385
386 skb = dev_alloc_skb(100);
387 if (skb == NULL)
388 return;
389
390 hdr = (struct hwsim_radiotap_hdr *) skb_put(skb, sizeof(*hdr));
391 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
392 hdr->hdr.it_pad = 0;
393 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
394 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
395 (1 << IEEE80211_RADIOTAP_CHANNEL));
396 hdr->rt_flags = 0;
397 hdr->rt_rate = 0;
398 hdr->rt_channel = cpu_to_le16(data->channel->center_freq);
399 flags = IEEE80211_CHAN_2GHZ;
400 hdr->rt_chbitmask = cpu_to_le16(flags);
401
402 hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
403 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
404 IEEE80211_STYPE_ACK);
405 hdr11->duration_id = cpu_to_le16(0);
406 memcpy(hdr11->addr1, addr, ETH_ALEN);
407
408 skb->dev = hwsim_mon;
409 skb_set_mac_header(skb, 0);
410 skb->ip_summed = CHECKSUM_UNNECESSARY;
411 skb->pkt_type = PACKET_OTHERHOST;
412 skb->protocol = htons(ETH_P_802_2);
413 memset(skb->cb, 0, sizeof(skb->cb));
414 netif_rx(skb);
415}
416
417
fc6971d4
JM		 418static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
419 struct sk_buff *skb)
420{
421 switch (data->ps) {
422 case PS_DISABLED:
423 return true;
424 case PS_ENABLED:
425 return false;
426 case PS_AUTO_POLL:
427 /* TODO: accept (some) Beacons by default and other frames only
428 * if pending PS-Poll has been sent */
429 return true;
430 case PS_MANUAL_POLL:
431 /* Allow unicast frames to own address if there is a pending
432 * PS-Poll */
433 if (data->ps_poll_pending &&
434 memcmp(data->hw->wiphy->perm_addr, skb->data + 4,
435 ETH_ALEN) == 0) {
436 data->ps_poll_pending = false;
437 return true;
438 }
439 return false;
440 }
441
442 return true;
443}
444
445
265dc7f0
JM		 446struct mac80211_hwsim_addr_match_data {
447 bool ret;
448 const u8 *addr;
449};
450
451static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
452 struct ieee80211_vif *vif)
453{
454 struct mac80211_hwsim_addr_match_data *md = data;
455 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
456 md->ret = true;
457}
458
459
460static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
461 const u8 *addr)
462{
463 struct mac80211_hwsim_addr_match_data md;
464
465 if (memcmp(addr, data->hw->wiphy->perm_addr, ETH_ALEN) == 0)
466 return true;
467
468 md.ret = false;
469 md.addr = addr;
470 ieee80211_iterate_active_interfaces_atomic(data->hw,
471 mac80211_hwsim_addr_iter,
472 &md);
473
474 return md.ret;
475}
476
477
0e057d73
JB		 478static bool mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
479 struct sk_buff *skb)
acc1e7a3 480{
0e057d73
JB		 481 struct mac80211_hwsim_data *data = hw->priv, *data2;
482 bool ack = false;
e36cfdc9 483 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
acc1e7a3 484 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
e36cfdc9 485 struct ieee80211_rx_status rx_status;
acc1e7a3 486
70541839
JM		 487 if (data->idle) {
488 printk(KERN_DEBUG "%s: Trying to TX when idle - reject\n",
489 wiphy_name(hw->wiphy));
490 return false;
491 }
492
acc1e7a3
JM		 493 memset(&rx_status, 0, sizeof(rx_status));
494 /* TODO: set mactime */
495 rx_status.freq = data->channel->center_freq;
496 rx_status.band = data->channel->band;
e6a9854b 497 rx_status.rate_idx = info->control.rates[0].idx;
4b14c96d
JB		 498 /* TODO: simulate real signal strength (and optional packet loss) */
499 rx_status.signal = -50;
acc1e7a3 500
fc6971d4
JM		 501 if (data->ps != PS_DISABLED)
502 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
503
90e3012e
JB		 504 /* release the skb's source info */
505 skb_orphan(skb);
c0acf38e 506 skb_dst_drop(skb);
90e3012e
JB		 507 skb->mark = 0;
508 secpath_reset(skb);
509 nf_reset(skb);
510
acc1e7a3 511 /* Copy skb to all enabled radios that are on the current frequency */
0e057d73
JB		 512 spin_lock(&hwsim_radio_lock);
513 list_for_each_entry(data2, &hwsim_radios, list) {
acc1e7a3
JM		 514 struct sk_buff *nskb;
515
0e057d73 516 if (data == data2)
acc1e7a3 517 continue;
0e057d73 518
70541839
JM		 519 if (data2->idle || !data2->started ||
520 !hwsim_ps_rx_ok(data2, skb) ||
4ff17667 521 !data->channel || !data2->channel ||
73606d00
DW		 522 data->channel->center_freq != data2->channel->center_freq ||
523 !(data->group & data2->group))
acc1e7a3
JM		 524 continue;
525
526 nskb = skb_copy(skb, GFP_ATOMIC);
527 if (nskb == NULL)
528 continue;
529
265dc7f0 530 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
0e057d73 531 ack = true;
f1d58c25
JB		 532 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
533 ieee80211_rx_irqsafe(data2->hw, nskb);
acc1e7a3 534 }
0e057d73 535 spin_unlock(&hwsim_radio_lock);
acc1e7a3 536
e36cfdc9
JM		 537 return ack;
538}
539
540
541static int mac80211_hwsim_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
542{
0e057d73 543 bool ack;
e36cfdc9
JM		 544 struct ieee80211_tx_info *txi;
545
546 mac80211_hwsim_monitor_rx(hw, skb);
547
548 if (skb->len < 10) {
549 /* Should not happen; just a sanity check for addr1 use */
550 dev_kfree_skb(skb);
551 return NETDEV_TX_OK;
552 }
553
e36cfdc9 554 ack = mac80211_hwsim_tx_frame(hw, skb);
6c085227
JM		 555 if (ack && skb->len >= 16) {
556 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
557 mac80211_hwsim_monitor_ack(hw, hdr->addr2);
558 }
e36cfdc9 559
acc1e7a3 560 txi = IEEE80211_SKB_CB(skb);
8aa21e6f 561
25d834e1
JB		 562 if (txi->control.vif)
563 hwsim_check_magic(txi->control.vif);
81c06523
JB		 564 if (txi->control.sta)
565 hwsim_check_sta_magic(txi->control.sta);
8aa21e6f 566
e6a9854b
JB		 567 ieee80211_tx_info_clear_status(txi);
568 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
569 txi->flags |= IEEE80211_TX_STAT_ACK;
acc1e7a3
JM		 570 ieee80211_tx_status_irqsafe(hw, skb);
571 return NETDEV_TX_OK;
572}
573
574
575static int mac80211_hwsim_start(struct ieee80211_hw *hw)
576{
577 struct mac80211_hwsim_data *data = hw->priv;
578 printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
579 data->started = 1;
580 return 0;
581}
582
583
584static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
585{
586 struct mac80211_hwsim_data *data = hw->priv;
587 data->started = 0;
ab1ef980 588 del_timer(&data->beacon_timer);
acc1e7a3
JM		 589 printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
590}
591
592
593static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
1ed32e4f 594 struct ieee80211_vif *vif)
acc1e7a3 595{
e174961c 596 printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%pM)\n",
1ed32e4f
JB		 597 wiphy_name(hw->wiphy), __func__, vif->type,
598 vif->addr);
599 hwsim_set_magic(vif);
acc1e7a3
JM		 600 return 0;
601}
602
603
604static void mac80211_hwsim_remove_interface(
1ed32e4f 605 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
acc1e7a3 606{
e174961c 607 printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%pM)\n",
1ed32e4f
JB		 608 wiphy_name(hw->wiphy), __func__, vif->type,
609 vif->addr);
610 hwsim_check_magic(vif);
611 hwsim_clear_magic(vif);
acc1e7a3
JM		 612}
613
614
615static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
616 struct ieee80211_vif *vif)
617{
618 struct ieee80211_hw *hw = arg;
acc1e7a3 619 struct sk_buff *skb;
acc1e7a3
JM		 620 struct ieee80211_tx_info *info;
621
8aa21e6f
JB		 622 hwsim_check_magic(vif);
623
55b39619
AY		 624 if (vif->type != NL80211_IFTYPE_AP &&
625 vif->type != NL80211_IFTYPE_MESH_POINT)
acc1e7a3
JM		 626 return;
627
628 skb = ieee80211_beacon_get(hw, vif);
629 if (skb == NULL)
630 return;
631 info = IEEE80211_SKB_CB(skb);
632
633 mac80211_hwsim_monitor_rx(hw, skb);
e36cfdc9 634 mac80211_hwsim_tx_frame(hw, skb);
acc1e7a3
JM		 635 dev_kfree_skb(skb);
636}
637
638
639static void mac80211_hwsim_beacon(unsigned long arg)
640{
641 struct ieee80211_hw *hw = (struct ieee80211_hw *) arg;
642 struct mac80211_hwsim_data *data = hw->priv;
643
4c4c671a 644 if (!data->started)
acc1e7a3
JM		 645 return;
646
f248f105
JM		 647 ieee80211_iterate_active_interfaces_atomic(
648 hw, mac80211_hwsim_beacon_tx, hw);
acc1e7a3
JM		 649
650 data->beacon_timer.expires = jiffies + data->beacon_int;
651 add_timer(&data->beacon_timer);
652}
653
654
e8975581 655static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
acc1e7a3
JM		 656{
657 struct mac80211_hwsim_data *data = hw->priv;
e8975581 658 struct ieee80211_conf *conf = &hw->conf;
0f78231b
JB		 659 static const char *chantypes[4] = {
660 [NL80211_CHAN_NO_HT] = "noht",
661 [NL80211_CHAN_HT20] = "ht20",
662 [NL80211_CHAN_HT40MINUS] = "ht40-",
663 [NL80211_CHAN_HT40PLUS] = "ht40+",
664 };
665 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
666 [IEEE80211_SMPS_AUTOMATIC] = "auto",
667 [IEEE80211_SMPS_OFF] = "off",
668 [IEEE80211_SMPS_STATIC] = "static",
669 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
670 };
671
672 printk(KERN_DEBUG "%s:%s (freq=%d/%s idle=%d ps=%d smps=%s)\n",
acc1e7a3 673 wiphy_name(hw->wiphy), __func__,
4c4c671a 674 conf->channel->center_freq,
0f78231b 675 chantypes[conf->channel_type],
5cff20e6 676 !!(conf->flags & IEEE80211_CONF_IDLE),
0f78231b
JB		 677 !!(conf->flags & IEEE80211_CONF_PS),
678 smps_modes[conf->smps_mode]);
acc1e7a3 679
70541839
JM		 680 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
681
acc1e7a3 682 data->channel = conf->channel;
4c4c671a 683 if (!data->started || !data->beacon_int)
acc1e7a3
JM		 684 del_timer(&data->beacon_timer);
685 else
686 mod_timer(&data->beacon_timer, jiffies + data->beacon_int);
687
688 return 0;
689}
690
691
692static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
693 unsigned int changed_flags,
3ac64bee 694 unsigned int *total_flags,u64 multicast)
acc1e7a3
JM		 695{
696 struct mac80211_hwsim_data *data = hw->priv;
697
698 printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
699
700 data->rx_filter = 0;
701 if (*total_flags & FIF_PROMISC_IN_BSS)
702 data->rx_filter |= FIF_PROMISC_IN_BSS;
703 if (*total_flags & FIF_ALLMULTI)
704 data->rx_filter |= FIF_ALLMULTI;
705
706 *total_flags = data->rx_filter;
707}
708
8aa21e6f
JB		 709static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
710 struct ieee80211_vif *vif,
711 struct ieee80211_bss_conf *info,
712 u32 changed)
713{
fc6971d4 714 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
57c4d7b4 715 struct mac80211_hwsim_data *data = hw->priv;
fc6971d4 716
8aa21e6f 717 hwsim_check_magic(vif);
fe63bfa3
JM		 718
719 printk(KERN_DEBUG "%s:%s(changed=0x%x)\n",
720 wiphy_name(hw->wiphy), __func__, changed);
721
2d0ddec5
JB		 722 if (changed & BSS_CHANGED_BSSID) {
723 printk(KERN_DEBUG "%s:%s: BSSID changed: %pM\n",
724 wiphy_name(hw->wiphy), __func__,
725 info->bssid);
726 memcpy(vp->bssid, info->bssid, ETH_ALEN);
727 }
728
fe63bfa3
JM		 729 if (changed & BSS_CHANGED_ASSOC) {
730 printk(KERN_DEBUG " %s: ASSOC: assoc=%d aid=%d\n",
731 wiphy_name(hw->wiphy), info->assoc, info->aid);
fc6971d4
JM		 732 vp->assoc = info->assoc;
733 vp->aid = info->aid;
fe63bfa3
JM		 734 }
735
57c4d7b4
JB		 736 if (changed & BSS_CHANGED_BEACON_INT) {
737 printk(KERN_DEBUG " %s: BCNINT: %d\n",
738 wiphy_name(hw->wiphy), info->beacon_int);
739 data->beacon_int = 1024 * info->beacon_int / 1000 * HZ / 1000;
d91f190c 740 if (WARN_ON(!data->beacon_int))
57c4d7b4 741 data->beacon_int = 1;
ffed1307
JM		 742 if (data->started)
743 mod_timer(&data->beacon_timer,
744 jiffies + data->beacon_int);
57c4d7b4
JB		 745 }
746
fe63bfa3
JM		 747 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
748 printk(KERN_DEBUG " %s: ERP_CTS_PROT: %d\n",
749 wiphy_name(hw->wiphy), info->use_cts_prot);
750 }
751
752 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
753 printk(KERN_DEBUG " %s: ERP_PREAMBLE: %d\n",
754 wiphy_name(hw->wiphy), info->use_short_preamble);
755 }
756
757 if (changed & BSS_CHANGED_ERP_SLOT) {
758 printk(KERN_DEBUG " %s: ERP_SLOT: %d\n",
759 wiphy_name(hw->wiphy), info->use_short_slot);
760 }
761
762 if (changed & BSS_CHANGED_HT) {
094d05dc 763 printk(KERN_DEBUG " %s: HT: op_mode=0x%x\n",
fe63bfa3 764 wiphy_name(hw->wiphy),
9ed6bcce 765 info->ht_operation_mode);
fe63bfa3
JM		 766 }
767
768 if (changed & BSS_CHANGED_BASIC_RATES) {
769 printk(KERN_DEBUG " %s: BASIC_RATES: 0x%llx\n",
770 wiphy_name(hw->wiphy),
771 (unsigned long long) info->basic_rates);
772 }
8aa21e6f
JB		 773}
774
1d669cbf
JB		 775static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
776 struct ieee80211_vif *vif,
777 struct ieee80211_sta *sta)
778{
779 hwsim_check_magic(vif);
780 hwsim_set_sta_magic(sta);
781
782 return 0;
783}
784
785static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
786 struct ieee80211_vif *vif,
787 struct ieee80211_sta *sta)
788{
789 hwsim_check_magic(vif);
790 hwsim_clear_sta_magic(sta);
791
792 return 0;
793}
794
8aa21e6f
JB		 795static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
796 struct ieee80211_vif *vif,
17741cdc
JB		 797 enum sta_notify_cmd cmd,
798 struct ieee80211_sta *sta)
8aa21e6f
JB		 799{
800 hwsim_check_magic(vif);
1d669cbf 801
81c06523 802 switch (cmd) {
89fad578
CL		 803 case STA_NOTIFY_SLEEP:
804 case STA_NOTIFY_AWAKE:
805 /* TODO: make good use of these flags */
806 break;
1d669cbf
JB		 807 default:
808 WARN(1, "Invalid sta notify: %d\n", cmd);
809 break;
81c06523
JB		 810 }
811}
812
813static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
814 struct ieee80211_sta *sta,
815 bool set)
816{
817 hwsim_check_sta_magic(sta);
818 return 0;
8aa21e6f 819}
acc1e7a3 820
1e898ff8
JM		 821static int mac80211_hwsim_conf_tx(
822 struct ieee80211_hw *hw, u16 queue,
823 const struct ieee80211_tx_queue_params *params)
824{
825 printk(KERN_DEBUG "%s:%s (queue=%d txop=%d cw_min=%d cw_max=%d "
826 "aifs=%d)\n",
827 wiphy_name(hw->wiphy), __func__, queue,
828 params->txop, params->cw_min, params->cw_max, params->aifs);
829 return 0;
830}
831
aff89a9b
JB		 832#ifdef CONFIG_NL80211_TESTMODE
833/*
834 * This section contains example code for using netlink
835 * attributes with the testmode command in nl80211.
836 */
837
838/* These enums need to be kept in sync with userspace */
839enum hwsim_testmode_attr {
840 __HWSIM_TM_ATTR_INVALID = 0,
841 HWSIM_TM_ATTR_CMD = 1,
842 HWSIM_TM_ATTR_PS = 2,
843
844 /* keep last */
845 __HWSIM_TM_ATTR_AFTER_LAST,
846 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
847};
848
849enum hwsim_testmode_cmd {
850 HWSIM_TM_CMD_SET_PS = 0,
851 HWSIM_TM_CMD_GET_PS = 1,
852};
853
854static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
855 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
856 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
857};
858
859static int hwsim_fops_ps_write(void *dat, u64 val);
860
5bc38193
JB		 861static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
862 void *data, int len)
aff89a9b
JB		 863{
864 struct mac80211_hwsim_data *hwsim = hw->priv;
865 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
866 struct sk_buff *skb;
867 int err, ps;
868
869 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
870 hwsim_testmode_policy);
871 if (err)
872 return err;
873
874 if (!tb[HWSIM_TM_ATTR_CMD])
875 return -EINVAL;
876
877 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
878 case HWSIM_TM_CMD_SET_PS:
879 if (!tb[HWSIM_TM_ATTR_PS])
880 return -EINVAL;
881 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
882 return hwsim_fops_ps_write(hwsim, ps);
883 case HWSIM_TM_CMD_GET_PS:
884 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
885 nla_total_size(sizeof(u32)));
886 if (!skb)
887 return -ENOMEM;
888 NLA_PUT_U32(skb, HWSIM_TM_ATTR_PS, hwsim->ps);
889 return cfg80211_testmode_reply(skb);
890 default:
891 return -EOPNOTSUPP;
892 }
893
894 nla_put_failure:
895 kfree_skb(skb);
896 return -ENOBUFS;
897}
898#endif
899
8b73d13a
JB		 900static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
901 struct ieee80211_vif *vif,
902 enum ieee80211_ampdu_mlme_action action,
903 struct ieee80211_sta *sta, u16 tid, u16 *ssn)
904{
905 switch (action) {
906 case IEEE80211_AMPDU_TX_START:
907 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
908 break;
909 case IEEE80211_AMPDU_TX_STOP:
910 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
911 break;
912 case IEEE80211_AMPDU_TX_OPERATIONAL:
913 break;
914 case IEEE80211_AMPDU_RX_START:
915 case IEEE80211_AMPDU_RX_STOP:
916 break;
917 default:
918 return -EOPNOTSUPP;
919 }
920
921 return 0;
922}
923
a80f7c0b
JB		 924static void mac80211_hwsim_flush(struct ieee80211_hw *hw, bool drop)
925{
926 /*
927 * In this special case, there's nothing we need to
928 * do because hwsim does transmission synchronously.
929 * In the future, when it does transmissions via
930 * userspace, we may need to do something.
931 */
932}
933
69068036
JB		 934struct hw_scan_done {
935 struct delayed_work w;
936 struct ieee80211_hw *hw;
937};
8b73d13a 938
69068036
JB		 939static void hw_scan_done(struct work_struct *work)
940{
941 struct hw_scan_done *hsd =
942 container_of(work, struct hw_scan_done, w.work);
943
944 ieee80211_scan_completed(hsd->hw, false);
945 kfree(hsd);
946}
947
948static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
949 struct cfg80211_scan_request *req)
950{
951 struct hw_scan_done *hsd = kzalloc(sizeof(*hsd), GFP_KERNEL);
952 int i;
953
954 if (!hsd)
955 return -ENOMEM;
956
957 hsd->hw = hw;
958 INIT_DELAYED_WORK(&hsd->w, hw_scan_done);
959
960 printk(KERN_DEBUG "hwsim scan request\n");
961 for (i = 0; i < req->n_channels; i++)
962 printk(KERN_DEBUG "hwsim scan freq %d\n",
963 req->channels[i]->center_freq);
964
965 ieee80211_queue_delayed_work(hw, &hsd->w, 2 * HZ);
966
967 return 0;
968}
969
970static struct ieee80211_ops mac80211_hwsim_ops =
acc1e7a3
JM		 971{
972 .tx = mac80211_hwsim_tx,
973 .start = mac80211_hwsim_start,
974 .stop = mac80211_hwsim_stop,
975 .add_interface = mac80211_hwsim_add_interface,
976 .remove_interface = mac80211_hwsim_remove_interface,
977 .config = mac80211_hwsim_config,
978 .configure_filter = mac80211_hwsim_configure_filter,
8aa21e6f 979 .bss_info_changed = mac80211_hwsim_bss_info_changed,
1d669cbf
JB		 980 .sta_add = mac80211_hwsim_sta_add,
981 .sta_remove = mac80211_hwsim_sta_remove,
8aa21e6f 982 .sta_notify = mac80211_hwsim_sta_notify,
81c06523 983 .set_tim = mac80211_hwsim_set_tim,
1e898ff8 984 .conf_tx = mac80211_hwsim_conf_tx,
aff89a9b 985 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
8b73d13a 986 .ampdu_action = mac80211_hwsim_ampdu_action,
a80f7c0b 987 .flush = mac80211_hwsim_flush,
acc1e7a3
JM		 988};
989
990
991static void mac80211_hwsim_free(void)
992{
0e057d73 993 struct list_head tmplist, *i, *tmp;
e603d9d8 994 struct mac80211_hwsim_data *data, *tmpdata;
0e057d73
JB		 995
996 INIT_LIST_HEAD(&tmplist);
997
998 spin_lock_bh(&hwsim_radio_lock);
999 list_for_each_safe(i, tmp, &hwsim_radios)
1000 list_move(i, &tmplist);
1001 spin_unlock_bh(&hwsim_radio_lock);
1002
e603d9d8 1003 list_for_each_entry_safe(data, tmpdata, &tmplist, list) {
73606d00 1004 debugfs_remove(data->debugfs_group);
fc6971d4
JM		 1005 debugfs_remove(data->debugfs_ps);
1006 debugfs_remove(data->debugfs);
0e057d73
JB		 1007 ieee80211_unregister_hw(data->hw);
1008 device_unregister(data->dev);
1009 ieee80211_free_hw(data->hw);
acc1e7a3 1010 }
acc1e7a3
JM		 1011 class_destroy(hwsim_class);
1012}
1013
1014
1015static struct device_driver mac80211_hwsim_driver = {
1016 .name = "mac80211_hwsim"
1017};
1018
98d2faae
SH		 1019static const struct net_device_ops hwsim_netdev_ops = {
1020 .ndo_start_xmit = hwsim_mon_xmit,
1021 .ndo_change_mtu = eth_change_mtu,
1022 .ndo_set_mac_address = eth_mac_addr,
1023 .ndo_validate_addr = eth_validate_addr,
1024};
acc1e7a3
JM		 1025
1026static void hwsim_mon_setup(struct net_device *dev)
1027{
98d2faae 1028 dev->netdev_ops = &hwsim_netdev_ops;
acc1e7a3
JM		 1029 dev->destructor = free_netdev;
1030 ether_setup(dev);
1031 dev->tx_queue_len = 0;
1032 dev->type = ARPHRD_IEEE80211_RADIOTAP;
1033 memset(dev->dev_addr, 0, ETH_ALEN);
1034 dev->dev_addr[0] = 0x12;
1035}
1036
1037
fc6971d4
JM		 1038static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
1039{
1040 struct mac80211_hwsim_data *data = dat;
1041 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
fc6971d4
JM		 1042 struct sk_buff *skb;
1043 struct ieee80211_pspoll *pspoll;
1044
1045 if (!vp->assoc)
1046 return;
1047
b235507c
JL		 1048 printk(KERN_DEBUG "%s:%s: send PS-Poll to %pM for aid %d\n",
1049 wiphy_name(data->hw->wiphy), __func__, vp->bssid, vp->aid);
fc6971d4
JM		 1050
1051 skb = dev_alloc_skb(sizeof(*pspoll));
1052 if (!skb)
1053 return;
1054 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
1055 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
1056 IEEE80211_STYPE_PSPOLL |
1057 IEEE80211_FCTL_PM);
1058 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
1059 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
1060 memcpy(pspoll->ta, mac, ETH_ALEN);
4c4c671a 1061 if (!mac80211_hwsim_tx_frame(data->hw, skb))
fc6971d4
JM		 1062 printk(KERN_DEBUG "%s: PS-Poll frame not ack'ed\n", __func__);
1063 dev_kfree_skb(skb);
1064}
1065
1066
1067static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
1068 struct ieee80211_vif *vif, int ps)
1069{
1070 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
fc6971d4
JM		 1071 struct sk_buff *skb;
1072 struct ieee80211_hdr *hdr;
1073
1074 if (!vp->assoc)
1075 return;
1076
b235507c
JL		 1077 printk(KERN_DEBUG "%s:%s: send data::nullfunc to %pM ps=%d\n",
1078 wiphy_name(data->hw->wiphy), __func__, vp->bssid, ps);
fc6971d4
JM		 1079
1080 skb = dev_alloc_skb(sizeof(*hdr));
1081 if (!skb)
1082 return;
1083 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
1084 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1085 IEEE80211_STYPE_NULLFUNC |
1086 (ps ? IEEE80211_FCTL_PM : 0));
1087 hdr->duration_id = cpu_to_le16(0);
1088 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
1089 memcpy(hdr->addr2, mac, ETH_ALEN);
1090 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
4c4c671a 1091 if (!mac80211_hwsim_tx_frame(data->hw, skb))
fc6971d4
JM		 1092 printk(KERN_DEBUG "%s: nullfunc frame not ack'ed\n", __func__);
1093 dev_kfree_skb(skb);
1094}
1095
1096
1097static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
1098 struct ieee80211_vif *vif)
1099{
1100 struct mac80211_hwsim_data *data = dat;
1101 hwsim_send_nullfunc(data, mac, vif, 1);
1102}
1103
1104
1105static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
1106 struct ieee80211_vif *vif)
1107{
1108 struct mac80211_hwsim_data *data = dat;
1109 hwsim_send_nullfunc(data, mac, vif, 0);
1110}
1111
1112
1113static int hwsim_fops_ps_read(void *dat, u64 *val)
1114{
1115 struct mac80211_hwsim_data *data = dat;
1116 *val = data->ps;
1117 return 0;
1118}
1119
1120static int hwsim_fops_ps_write(void *dat, u64 val)
1121{
1122 struct mac80211_hwsim_data *data = dat;
1123 enum ps_mode old_ps;
1124
1125 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
1126 val != PS_MANUAL_POLL)
1127 return -EINVAL;
1128
1129 old_ps = data->ps;
1130 data->ps = val;
1131
1132 if (val == PS_MANUAL_POLL) {
1133 ieee80211_iterate_active_interfaces(data->hw,
1134 hwsim_send_ps_poll, data);
1135 data->ps_poll_pending = true;
1136 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
1137 ieee80211_iterate_active_interfaces(data->hw,
1138 hwsim_send_nullfunc_ps,
1139 data);
1140 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
1141 ieee80211_iterate_active_interfaces(data->hw,
1142 hwsim_send_nullfunc_no_ps,
1143 data);
1144 }
1145
1146 return 0;
1147}
1148
1149DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
1150 "%llu\n");
1151
1152
73606d00
DW		 1153static int hwsim_fops_group_read(void *dat, u64 *val)
1154{
1155 struct mac80211_hwsim_data *data = dat;
1156 *val = data->group;
1157 return 0;
1158}
1159
1160static int hwsim_fops_group_write(void *dat, u64 val)
1161{
1162 struct mac80211_hwsim_data *data = dat;
1163 data->group = val;
1164 return 0;
1165}
1166
1167DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
1168 hwsim_fops_group_read, hwsim_fops_group_write,
1169 "%llx\n");
1170
acc1e7a3
JM		 1171static int __init init_mac80211_hwsim(void)
1172{
1173 int i, err = 0;
1174 u8 addr[ETH_ALEN];
1175 struct mac80211_hwsim_data *data;
1176 struct ieee80211_hw *hw;
22cad735 1177 enum ieee80211_band band;
acc1e7a3 1178
0e057d73 1179 if (radios < 1 || radios > 100)
acc1e7a3
JM		 1180 return -EINVAL;
1181
69068036
JB		 1182 if (fake_hw_scan)
1183 mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan;
1184
0e057d73
JB		 1185 spin_lock_init(&hwsim_radio_lock);
1186 INIT_LIST_HEAD(&hwsim_radios);
acc1e7a3
JM		 1187
1188 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
0e057d73 1189 if (IS_ERR(hwsim_class))
acc1e7a3 1190 return PTR_ERR(hwsim_class);
acc1e7a3
JM		 1191
1192 memset(addr, 0, ETH_ALEN);
1193 addr[0] = 0x02;
1194
0e057d73 1195 for (i = 0; i < radios; i++) {
acc1e7a3
JM		 1196 printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
1197 i);
1198 hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);
0e057d73 1199 if (!hw) {
acc1e7a3
JM		 1200 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
1201 "failed\n");
1202 err = -ENOMEM;
1203 goto failed;
1204 }
acc1e7a3 1205 data = hw->priv;
0e057d73
JB		 1206 data->hw = hw;
1207
6e05d6c4
GKH		 1208 data->dev = device_create(hwsim_class, NULL, 0, hw,
1209 "hwsim%d", i);
acc1e7a3 1210 if (IS_ERR(data->dev)) {
e800f17c 1211 printk(KERN_DEBUG
6e05d6c4 1212 "mac80211_hwsim: device_create "
acc1e7a3
JM		 1213 "failed (%ld)\n", PTR_ERR(data->dev));
1214 err = -ENOMEM;
3a33cc10 1215 goto failed_drvdata;
acc1e7a3
JM		 1216 }
1217 data->dev->driver = &mac80211_hwsim_driver;
acc1e7a3
JM		 1218
1219 SET_IEEE80211_DEV(hw, data->dev);
1220 addr[3] = i >> 8;
1221 addr[4] = i;
ef15aac6
JB		 1222 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
1223 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
1224 data->addresses[1].addr[0] |= 0x40;
1225 hw->wiphy->n_addresses = 2;
1226 hw->wiphy->addresses = data->addresses;
acc1e7a3
JM		 1227
1228 hw->channel_change_time = 1;
87e8b64e 1229 hw->queues = 4;
f59ac048
LR		 1230 hw->wiphy->interface_modes =
1231 BIT(NL80211_IFTYPE_STATION) |
55b39619
AY		 1232 BIT(NL80211_IFTYPE_AP) |
1233 BIT(NL80211_IFTYPE_MESH_POINT);
acc1e7a3 1234
4b14c96d 1235 hw->flags = IEEE80211_HW_MFP_CAPABLE |
0f78231b
JB		 1236 IEEE80211_HW_SIGNAL_DBM |
1237 IEEE80211_HW_SUPPORTS_STATIC_SMPS |
1238 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS;
fa77533e 1239
8aa21e6f
JB		 1240 /* ask mac80211 to reserve space for magic */
1241 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
81c06523 1242 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
8aa21e6f 1243
22cad735
LR		 1244 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
1245 sizeof(hwsim_channels_2ghz));
1246 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
1247 sizeof(hwsim_channels_5ghz));
acc1e7a3 1248 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
22cad735
LR		 1249
1250 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
1251 struct ieee80211_supported_band *sband = &data->bands[band];
1252 switch (band) {
1253 case IEEE80211_BAND_2GHZ:
1254 sband->channels = data->channels_2ghz;
1255 sband->n_channels =
1256 ARRAY_SIZE(hwsim_channels_2ghz);
d130eb49
JB		 1257 sband->bitrates = data->rates;
1258 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
22cad735
LR		 1259 break;
1260 case IEEE80211_BAND_5GHZ:
1261 sband->channels = data->channels_5ghz;
1262 sband->n_channels =
1263 ARRAY_SIZE(hwsim_channels_5ghz);
d130eb49
JB		 1264 sband->bitrates = data->rates + 4;
1265 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
22cad735
LR		 1266 break;
1267 default:
1268 break;
1269 }
1270
22cad735
LR		 1271 sband->ht_cap.ht_supported = true;
1272 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
1273 IEEE80211_HT_CAP_GRN_FLD |
1274 IEEE80211_HT_CAP_SGI_40 |
1275 IEEE80211_HT_CAP_DSSSCCK40;
1276 sband->ht_cap.ampdu_factor = 0x3;
1277 sband->ht_cap.ampdu_density = 0x6;
1278 memset(&sband->ht_cap.mcs, 0,
1279 sizeof(sband->ht_cap.mcs));
1280 sband->ht_cap.mcs.rx_mask[0] = 0xff;
1281 sband->ht_cap.mcs.rx_mask[1] = 0xff;
1282 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1283
1284 hw->wiphy->bands[band] = sband;
1285 }
73606d00
DW		 1286 /* By default all radios are belonging to the first group */
1287 data->group = 1;
acc1e7a3 1288
4a5af9c2
LR		 1289 /* Work to be done prior to ieee80211_register_hw() */
1290 switch (regtest) {
1291 case HWSIM_REGTEST_DISABLED:
1292 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
1293 case HWSIM_REGTEST_DRIVER_REG_ALL:
1294 case HWSIM_REGTEST_DIFF_COUNTRY:
1295 /*
1296 * Nothing to be done for driver regulatory domain
1297 * hints prior to ieee80211_register_hw()
1298 */
1299 break;
1300 case HWSIM_REGTEST_WORLD_ROAM:
1301 if (i == 0) {
5be83de5 1302 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 1303 wiphy_apply_custom_regulatory(hw->wiphy,
1304 &hwsim_world_regdom_custom_01);
1305 }
1306 break;
1307 case HWSIM_REGTEST_CUSTOM_WORLD:
5be83de5 1308 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 1309 wiphy_apply_custom_regulatory(hw->wiphy,
1310 &hwsim_world_regdom_custom_01);
1311 break;
1312 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1313 if (i == 0) {
5be83de5 1314 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 1315 wiphy_apply_custom_regulatory(hw->wiphy,
1316 &hwsim_world_regdom_custom_01);
1317 } else if (i == 1) {
5be83de5 1318 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 1319 wiphy_apply_custom_regulatory(hw->wiphy,
1320 &hwsim_world_regdom_custom_02);
1321 }
1322 break;
1323 case HWSIM_REGTEST_STRICT_ALL:
5be83de5 1324 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
4a5af9c2
LR		 1325 break;
1326 case HWSIM_REGTEST_STRICT_FOLLOW:
1327 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1328 if (i == 0)
5be83de5 1329 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
4a5af9c2
LR		 1330 break;
1331 case HWSIM_REGTEST_ALL:
1332 if (i == 0) {
5be83de5 1333 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 1334 wiphy_apply_custom_regulatory(hw->wiphy,
1335 &hwsim_world_regdom_custom_01);
1336 } else if (i == 1) {
5be83de5 1337 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 1338 wiphy_apply_custom_regulatory(hw->wiphy,
1339 &hwsim_world_regdom_custom_02);
1340 } else if (i == 4)
5be83de5 1341 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
4a5af9c2
LR		 1342 break;
1343 default:
1344 break;
1345 }
1346
98dfaa57
LR		 1347 /* give the regulatory workqueue a chance to run */
1348 if (regtest)
1349 schedule_timeout_interruptible(1);
acc1e7a3
JM		 1350 err = ieee80211_register_hw(hw);
1351 if (err < 0) {
1352 printk(KERN_DEBUG "mac80211_hwsim: "
1353 "ieee80211_register_hw failed (%d)\n", err);
3a33cc10 1354 goto failed_hw;
acc1e7a3
JM		 1355 }
1356
4a5af9c2
LR		 1357 /* Work to be done after to ieee80211_register_hw() */
1358 switch (regtest) {
1359 case HWSIM_REGTEST_WORLD_ROAM:
1360 case HWSIM_REGTEST_DISABLED:
1361 break;
1362 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
1363 if (!i)
1364 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1365 break;
1366 case HWSIM_REGTEST_DRIVER_REG_ALL:
1367 case HWSIM_REGTEST_STRICT_ALL:
1368 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1369 break;
1370 case HWSIM_REGTEST_DIFF_COUNTRY:
1371 if (i < ARRAY_SIZE(hwsim_alpha2s))
1372 regulatory_hint(hw->wiphy, hwsim_alpha2s[i]);
1373 break;
1374 case HWSIM_REGTEST_CUSTOM_WORLD:
1375 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1376 /*
1377 * Nothing to be done for custom world regulatory
1378 * domains after to ieee80211_register_hw
1379 */
1380 break;
1381 case HWSIM_REGTEST_STRICT_FOLLOW:
1382 if (i == 0)
1383 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1384 break;
1385 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1386 if (i == 0)
1387 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1388 else if (i == 1)
1389 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1390 break;
1391 case HWSIM_REGTEST_ALL:
1392 if (i == 2)
1393 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1394 else if (i == 3)
1395 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1396 else if (i == 4)
1397 regulatory_hint(hw->wiphy, hwsim_alpha2s[2]);
1398 break;
1399 default:
1400 break;
1401 }
1402
e174961c 1403 printk(KERN_DEBUG "%s: hwaddr %pM registered\n",
acc1e7a3 1404 wiphy_name(hw->wiphy),
e174961c 1405 hw->wiphy->perm_addr);
acc1e7a3 1406
fc6971d4
JM		 1407 data->debugfs = debugfs_create_dir("hwsim",
1408 hw->wiphy->debugfsdir);
1409 data->debugfs_ps = debugfs_create_file("ps", 0666,
1410 data->debugfs, data,
1411 &hwsim_fops_ps);
73606d00
DW		 1412 data->debugfs_group = debugfs_create_file("group", 0666,
1413 data->debugfs, data,
1414 &hwsim_fops_group);
fc6971d4 1415
acc1e7a3
JM		 1416 setup_timer(&data->beacon_timer, mac80211_hwsim_beacon,
1417 (unsigned long) hw);
0e057d73
JB		 1418
1419 list_add_tail(&data->list, &hwsim_radios);
acc1e7a3
JM		 1420 }
1421
1422 hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
1423 if (hwsim_mon == NULL)
1424 goto failed;
1425
1426 rtnl_lock();
1427
1428 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
3a33cc10 1429 if (err < 0)
acc1e7a3 1430 goto failed_mon;
3a33cc10 1431
acc1e7a3
JM		 1432
1433 err = register_netdevice(hwsim_mon);
1434 if (err < 0)
1435 goto failed_mon;
1436
1437 rtnl_unlock();
1438
1439 return 0;
1440
1441failed_mon:
1442 rtnl_unlock();
1443 free_netdev(hwsim_mon);
3a33cc10
IS		 1444 mac80211_hwsim_free();
1445 return err;
acc1e7a3 1446
3a33cc10
IS		 1447failed_hw:
1448 device_unregister(data->dev);
1449failed_drvdata:
1450 ieee80211_free_hw(hw);
acc1e7a3
JM		 1451failed:
1452 mac80211_hwsim_free();
1453 return err;
1454}
1455
1456
1457static void __exit exit_mac80211_hwsim(void)
1458{
0e057d73 1459 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
acc1e7a3 1460
acc1e7a3 1461 mac80211_hwsim_free();
5d416351 1462 unregister_netdev(hwsim_mon);
acc1e7a3
JM		 1463}
1464
1465
1466module_init(init_mac80211_hwsim);
1467module_exit(exit_mac80211_hwsim);
Linux 6.x block layer and io_uring tree(s)