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Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
[net-next-2.6.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;
f74cb0f7
LR		 294 bool started, idle, scanning;
295 struct mutex mutex;
acc1e7a3 296 struct timer_list beacon_timer;
fc6971d4
JM		 297 enum ps_mode {
298 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
299 } ps;
300 bool ps_poll_pending;
301 struct dentry *debugfs;
302 struct dentry *debugfs_ps;
73606d00
DW		 303
304 /*
305 * Only radios in the same group can communicate together (the
306 * channel has to match too). Each bit represents a group. A
307 * radio can be in more then one group.
308 */
309 u64 group;
310 struct dentry *debugfs_group;
acc1e7a3
JM		 311};
312
313
314struct hwsim_radiotap_hdr {
315 struct ieee80211_radiotap_header hdr;
316 u8 rt_flags;
317 u8 rt_rate;
318 __le16 rt_channel;
319 __le16 rt_chbitmask;
ba2d3587 320} __packed;
acc1e7a3
JM		 321
322
d0cf9c0d
SH		 323static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
324 struct net_device *dev)
acc1e7a3
JM		 325{
326 /* TODO: allow packet injection */
327 dev_kfree_skb(skb);
6ed10654 328 return NETDEV_TX_OK;
acc1e7a3
JM		 329}
330
331
332static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
333 struct sk_buff *tx_skb)
334{
335 struct mac80211_hwsim_data *data = hw->priv;
336 struct sk_buff *skb;
337 struct hwsim_radiotap_hdr *hdr;
338 u16 flags;
339 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
340 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
341
342 if (!netif_running(hwsim_mon))
343 return;
344
345 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
346 if (skb == NULL)
347 return;
348
349 hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
350 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
351 hdr->hdr.it_pad = 0;
352 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
f248f105
JM		 353 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
354 (1 << IEEE80211_RADIOTAP_RATE) |
355 (1 << IEEE80211_RADIOTAP_CHANNEL));
acc1e7a3
JM		 356 hdr->rt_flags = 0;
357 hdr->rt_rate = txrate->bitrate / 5;
df70b4ac 358 hdr->rt_channel = cpu_to_le16(data->channel->center_freq);
acc1e7a3
JM		 359 flags = IEEE80211_CHAN_2GHZ;
360 if (txrate->flags & IEEE80211_RATE_ERP_G)
361 flags |= IEEE80211_CHAN_OFDM;
362 else
363 flags |= IEEE80211_CHAN_CCK;
364 hdr->rt_chbitmask = cpu_to_le16(flags);
365
366 skb->dev = hwsim_mon;
367 skb_set_mac_header(skb, 0);
368 skb->ip_summed = CHECKSUM_UNNECESSARY;
369 skb->pkt_type = PACKET_OTHERHOST;
f248f105 370 skb->protocol = htons(ETH_P_802_2);
acc1e7a3
JM		 371 memset(skb->cb, 0, sizeof(skb->cb));
372 netif_rx(skb);
373}
374
375
6c085227
JM		 376static void mac80211_hwsim_monitor_ack(struct ieee80211_hw *hw, const u8 *addr)
377{
378 struct mac80211_hwsim_data *data = hw->priv;
379 struct sk_buff *skb;
380 struct hwsim_radiotap_hdr *hdr;
381 u16 flags;
382 struct ieee80211_hdr *hdr11;
383
384 if (!netif_running(hwsim_mon))
385 return;
386
387 skb = dev_alloc_skb(100);
388 if (skb == NULL)
389 return;
390
391 hdr = (struct hwsim_radiotap_hdr *) skb_put(skb, sizeof(*hdr));
392 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
393 hdr->hdr.it_pad = 0;
394 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
395 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
396 (1 << IEEE80211_RADIOTAP_CHANNEL));
397 hdr->rt_flags = 0;
398 hdr->rt_rate = 0;
399 hdr->rt_channel = cpu_to_le16(data->channel->center_freq);
400 flags = IEEE80211_CHAN_2GHZ;
401 hdr->rt_chbitmask = cpu_to_le16(flags);
402
403 hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
404 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
405 IEEE80211_STYPE_ACK);
406 hdr11->duration_id = cpu_to_le16(0);
407 memcpy(hdr11->addr1, addr, ETH_ALEN);
408
409 skb->dev = hwsim_mon;
410 skb_set_mac_header(skb, 0);
411 skb->ip_summed = CHECKSUM_UNNECESSARY;
412 skb->pkt_type = PACKET_OTHERHOST;
413 skb->protocol = htons(ETH_P_802_2);
414 memset(skb->cb, 0, sizeof(skb->cb));
415 netif_rx(skb);
416}
417
418
fc6971d4
JM		 419static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
420 struct sk_buff *skb)
421{
422 switch (data->ps) {
423 case PS_DISABLED:
424 return true;
425 case PS_ENABLED:
426 return false;
427 case PS_AUTO_POLL:
428 /* TODO: accept (some) Beacons by default and other frames only
429 * if pending PS-Poll has been sent */
430 return true;
431 case PS_MANUAL_POLL:
432 /* Allow unicast frames to own address if there is a pending
433 * PS-Poll */
434 if (data->ps_poll_pending &&
435 memcmp(data->hw->wiphy->perm_addr, skb->data + 4,
436 ETH_ALEN) == 0) {
437 data->ps_poll_pending = false;
438 return true;
439 }
440 return false;
441 }
442
443 return true;
444}
445
446
265dc7f0
JM		 447struct mac80211_hwsim_addr_match_data {
448 bool ret;
449 const u8 *addr;
450};
451
452static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
453 struct ieee80211_vif *vif)
454{
455 struct mac80211_hwsim_addr_match_data *md = data;
456 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
457 md->ret = true;
458}
459
460
461static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
462 const u8 *addr)
463{
464 struct mac80211_hwsim_addr_match_data md;
465
466 if (memcmp(addr, data->hw->wiphy->perm_addr, ETH_ALEN) == 0)
467 return true;
468
469 md.ret = false;
470 md.addr = addr;
471 ieee80211_iterate_active_interfaces_atomic(data->hw,
472 mac80211_hwsim_addr_iter,
473 &md);
474
475 return md.ret;
476}
477
478
0e057d73
JB		 479static bool mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
480 struct sk_buff *skb)
acc1e7a3 481{
0e057d73
JB		 482 struct mac80211_hwsim_data *data = hw->priv, *data2;
483 bool ack = false;
e36cfdc9 484 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
acc1e7a3 485 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
e36cfdc9 486 struct ieee80211_rx_status rx_status;
acc1e7a3 487
70541839
JM		 488 if (data->idle) {
489 printk(KERN_DEBUG "%s: Trying to TX when idle - reject\n",
490 wiphy_name(hw->wiphy));
491 return false;
492 }
493
acc1e7a3
JM		 494 memset(&rx_status, 0, sizeof(rx_status));
495 /* TODO: set mactime */
496 rx_status.freq = data->channel->center_freq;
497 rx_status.band = data->channel->band;
e6a9854b 498 rx_status.rate_idx = info->control.rates[0].idx;
4b14c96d
JB		 499 /* TODO: simulate real signal strength (and optional packet loss) */
500 rx_status.signal = -50;
acc1e7a3 501
fc6971d4
JM		 502 if (data->ps != PS_DISABLED)
503 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
504
90e3012e
JB		 505 /* release the skb's source info */
506 skb_orphan(skb);
c0acf38e 507 skb_dst_drop(skb);
90e3012e
JB		 508 skb->mark = 0;
509 secpath_reset(skb);
510 nf_reset(skb);
511
acc1e7a3 512 /* Copy skb to all enabled radios that are on the current frequency */
0e057d73
JB		 513 spin_lock(&hwsim_radio_lock);
514 list_for_each_entry(data2, &hwsim_radios, list) {
acc1e7a3
JM		 515 struct sk_buff *nskb;
516
0e057d73 517 if (data == data2)
acc1e7a3 518 continue;
0e057d73 519
70541839
JM		 520 if (data2->idle || !data2->started ||
521 !hwsim_ps_rx_ok(data2, skb) ||
4ff17667 522 !data->channel || !data2->channel ||
73606d00
DW		 523 data->channel->center_freq != data2->channel->center_freq ||
524 !(data->group & data2->group))
acc1e7a3
JM		 525 continue;
526
527 nskb = skb_copy(skb, GFP_ATOMIC);
528 if (nskb == NULL)
529 continue;
530
265dc7f0 531 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
0e057d73 532 ack = true;
f1d58c25
JB		 533 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
534 ieee80211_rx_irqsafe(data2->hw, nskb);
acc1e7a3 535 }
0e057d73 536 spin_unlock(&hwsim_radio_lock);
acc1e7a3 537
e36cfdc9
JM		 538 return ack;
539}
540
541
542static int mac80211_hwsim_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
543{
0e057d73 544 bool ack;
e36cfdc9
JM		 545 struct ieee80211_tx_info *txi;
546
547 mac80211_hwsim_monitor_rx(hw, skb);
548
549 if (skb->len < 10) {
550 /* Should not happen; just a sanity check for addr1 use */
551 dev_kfree_skb(skb);
552 return NETDEV_TX_OK;
553 }
554
e36cfdc9 555 ack = mac80211_hwsim_tx_frame(hw, skb);
6c085227
JM		 556 if (ack && skb->len >= 16) {
557 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
558 mac80211_hwsim_monitor_ack(hw, hdr->addr2);
559 }
e36cfdc9 560
acc1e7a3 561 txi = IEEE80211_SKB_CB(skb);
8aa21e6f 562
25d834e1
JB		 563 if (txi->control.vif)
564 hwsim_check_magic(txi->control.vif);
81c06523
JB		 565 if (txi->control.sta)
566 hwsim_check_sta_magic(txi->control.sta);
8aa21e6f 567
e6a9854b
JB		 568 ieee80211_tx_info_clear_status(txi);
569 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
570 txi->flags |= IEEE80211_TX_STAT_ACK;
acc1e7a3
JM		 571 ieee80211_tx_status_irqsafe(hw, skb);
572 return NETDEV_TX_OK;
573}
574
575
576static int mac80211_hwsim_start(struct ieee80211_hw *hw)
577{
578 struct mac80211_hwsim_data *data = hw->priv;
579 printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
580 data->started = 1;
581 return 0;
582}
583
584
585static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
586{
587 struct mac80211_hwsim_data *data = hw->priv;
588 data->started = 0;
ab1ef980 589 del_timer(&data->beacon_timer);
acc1e7a3
JM		 590 printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
591}
592
593
594static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
1ed32e4f 595 struct ieee80211_vif *vif)
acc1e7a3 596{
e174961c 597 printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%pM)\n",
1ed32e4f
JB		 598 wiphy_name(hw->wiphy), __func__, vif->type,
599 vif->addr);
600 hwsim_set_magic(vif);
acc1e7a3
JM		 601 return 0;
602}
603
604
605static void mac80211_hwsim_remove_interface(
1ed32e4f 606 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
acc1e7a3 607{
e174961c 608 printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%pM)\n",
1ed32e4f
JB		 609 wiphy_name(hw->wiphy), __func__, vif->type,
610 vif->addr);
611 hwsim_check_magic(vif);
612 hwsim_clear_magic(vif);
acc1e7a3
JM		 613}
614
615
616static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
617 struct ieee80211_vif *vif)
618{
619 struct ieee80211_hw *hw = arg;
acc1e7a3 620 struct sk_buff *skb;
acc1e7a3
JM		 621 struct ieee80211_tx_info *info;
622
8aa21e6f
JB		 623 hwsim_check_magic(vif);
624
55b39619
AY		 625 if (vif->type != NL80211_IFTYPE_AP &&
626 vif->type != NL80211_IFTYPE_MESH_POINT)
acc1e7a3
JM		 627 return;
628
629 skb = ieee80211_beacon_get(hw, vif);
630 if (skb == NULL)
631 return;
632 info = IEEE80211_SKB_CB(skb);
633
634 mac80211_hwsim_monitor_rx(hw, skb);
e36cfdc9 635 mac80211_hwsim_tx_frame(hw, skb);
acc1e7a3
JM		 636 dev_kfree_skb(skb);
637}
638
639
640static void mac80211_hwsim_beacon(unsigned long arg)
641{
642 struct ieee80211_hw *hw = (struct ieee80211_hw *) arg;
643 struct mac80211_hwsim_data *data = hw->priv;
644
4c4c671a 645 if (!data->started)
acc1e7a3
JM		 646 return;
647
f248f105
JM		 648 ieee80211_iterate_active_interfaces_atomic(
649 hw, mac80211_hwsim_beacon_tx, hw);
acc1e7a3
JM		 650
651 data->beacon_timer.expires = jiffies + data->beacon_int;
652 add_timer(&data->beacon_timer);
653}
654
0aaffa9b
JB		 655static const char *hwsim_chantypes[] = {
656 [NL80211_CHAN_NO_HT] = "noht",
657 [NL80211_CHAN_HT20] = "ht20",
658 [NL80211_CHAN_HT40MINUS] = "ht40-",
659 [NL80211_CHAN_HT40PLUS] = "ht40+",
660};
acc1e7a3 661
e8975581 662static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
acc1e7a3
JM		 663{
664 struct mac80211_hwsim_data *data = hw->priv;
e8975581 665 struct ieee80211_conf *conf = &hw->conf;
0f78231b
JB		 666 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
667 [IEEE80211_SMPS_AUTOMATIC] = "auto",
668 [IEEE80211_SMPS_OFF] = "off",
669 [IEEE80211_SMPS_STATIC] = "static",
670 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
671 };
672
673 printk(KERN_DEBUG "%s:%s (freq=%d/%s idle=%d ps=%d smps=%s)\n",
acc1e7a3 674 wiphy_name(hw->wiphy), __func__,
4c4c671a 675 conf->channel->center_freq,
0aaffa9b 676 hwsim_chantypes[conf->channel_type],
5cff20e6 677 !!(conf->flags & IEEE80211_CONF_IDLE),
0f78231b
JB		 678 !!(conf->flags & IEEE80211_CONF_PS),
679 smps_modes[conf->smps_mode]);
acc1e7a3 680
70541839
JM		 681 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
682
acc1e7a3 683 data->channel = conf->channel;
4c4c671a 684 if (!data->started || !data->beacon_int)
acc1e7a3
JM		 685 del_timer(&data->beacon_timer);
686 else
687 mod_timer(&data->beacon_timer, jiffies + data->beacon_int);
688
689 return 0;
690}
691
692
693static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
694 unsigned int changed_flags,
3ac64bee 695 unsigned int *total_flags,u64 multicast)
acc1e7a3
JM		 696{
697 struct mac80211_hwsim_data *data = hw->priv;
698
699 printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
700
701 data->rx_filter = 0;
702 if (*total_flags & FIF_PROMISC_IN_BSS)
703 data->rx_filter |= FIF_PROMISC_IN_BSS;
704 if (*total_flags & FIF_ALLMULTI)
705 data->rx_filter |= FIF_ALLMULTI;
706
707 *total_flags = data->rx_filter;
708}
709
8aa21e6f
JB		 710static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
711 struct ieee80211_vif *vif,
712 struct ieee80211_bss_conf *info,
713 u32 changed)
714{
fc6971d4 715 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
57c4d7b4 716 struct mac80211_hwsim_data *data = hw->priv;
fc6971d4 717
8aa21e6f 718 hwsim_check_magic(vif);
fe63bfa3
JM		 719
720 printk(KERN_DEBUG "%s:%s(changed=0x%x)\n",
721 wiphy_name(hw->wiphy), __func__, changed);
722
2d0ddec5
JB		 723 if (changed & BSS_CHANGED_BSSID) {
724 printk(KERN_DEBUG "%s:%s: BSSID changed: %pM\n",
725 wiphy_name(hw->wiphy), __func__,
726 info->bssid);
727 memcpy(vp->bssid, info->bssid, ETH_ALEN);
728 }
729
fe63bfa3
JM		 730 if (changed & BSS_CHANGED_ASSOC) {
731 printk(KERN_DEBUG " %s: ASSOC: assoc=%d aid=%d\n",
732 wiphy_name(hw->wiphy), info->assoc, info->aid);
fc6971d4
JM		 733 vp->assoc = info->assoc;
734 vp->aid = info->aid;
fe63bfa3
JM		 735 }
736
57c4d7b4
JB		 737 if (changed & BSS_CHANGED_BEACON_INT) {
738 printk(KERN_DEBUG " %s: BCNINT: %d\n",
739 wiphy_name(hw->wiphy), info->beacon_int);
740 data->beacon_int = 1024 * info->beacon_int / 1000 * HZ / 1000;
d91f190c 741 if (WARN_ON(!data->beacon_int))
57c4d7b4 742 data->beacon_int = 1;
ffed1307
JM		 743 if (data->started)
744 mod_timer(&data->beacon_timer,
745 jiffies + data->beacon_int);
57c4d7b4
JB		 746 }
747
fe63bfa3
JM		 748 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
749 printk(KERN_DEBUG " %s: ERP_CTS_PROT: %d\n",
750 wiphy_name(hw->wiphy), info->use_cts_prot);
751 }
752
753 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
754 printk(KERN_DEBUG " %s: ERP_PREAMBLE: %d\n",
755 wiphy_name(hw->wiphy), info->use_short_preamble);
756 }
757
758 if (changed & BSS_CHANGED_ERP_SLOT) {
759 printk(KERN_DEBUG " %s: ERP_SLOT: %d\n",
760 wiphy_name(hw->wiphy), info->use_short_slot);
761 }
762
763 if (changed & BSS_CHANGED_HT) {
0aaffa9b 764 printk(KERN_DEBUG " %s: HT: op_mode=0x%x, chantype=%s\n",
fe63bfa3 765 wiphy_name(hw->wiphy),
0aaffa9b
JB		 766 info->ht_operation_mode,
767 hwsim_chantypes[info->channel_type]);
fe63bfa3
JM		 768 }
769
770 if (changed & BSS_CHANGED_BASIC_RATES) {
771 printk(KERN_DEBUG " %s: BASIC_RATES: 0x%llx\n",
772 wiphy_name(hw->wiphy),
773 (unsigned long long) info->basic_rates);
774 }
8aa21e6f
JB		 775}
776
1d669cbf
JB		 777static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
778 struct ieee80211_vif *vif,
779 struct ieee80211_sta *sta)
780{
781 hwsim_check_magic(vif);
782 hwsim_set_sta_magic(sta);
783
784 return 0;
785}
786
787static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
788 struct ieee80211_vif *vif,
789 struct ieee80211_sta *sta)
790{
791 hwsim_check_magic(vif);
792 hwsim_clear_sta_magic(sta);
793
794 return 0;
795}
796
8aa21e6f
JB		 797static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
798 struct ieee80211_vif *vif,
17741cdc
JB		 799 enum sta_notify_cmd cmd,
800 struct ieee80211_sta *sta)
8aa21e6f
JB		 801{
802 hwsim_check_magic(vif);
1d669cbf 803
81c06523 804 switch (cmd) {
89fad578
CL		 805 case STA_NOTIFY_SLEEP:
806 case STA_NOTIFY_AWAKE:
807 /* TODO: make good use of these flags */
808 break;
1d669cbf
JB		 809 default:
810 WARN(1, "Invalid sta notify: %d\n", cmd);
811 break;
81c06523
JB		 812 }
813}
814
815static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
816 struct ieee80211_sta *sta,
817 bool set)
818{
819 hwsim_check_sta_magic(sta);
820 return 0;
8aa21e6f 821}
acc1e7a3 822
1e898ff8
JM		 823static int mac80211_hwsim_conf_tx(
824 struct ieee80211_hw *hw, u16 queue,
825 const struct ieee80211_tx_queue_params *params)
826{
827 printk(KERN_DEBUG "%s:%s (queue=%d txop=%d cw_min=%d cw_max=%d "
828 "aifs=%d)\n",
829 wiphy_name(hw->wiphy), __func__, queue,
830 params->txop, params->cw_min, params->cw_max, params->aifs);
831 return 0;
832}
833
1289723e
HS		 834static int mac80211_hwsim_get_survey(
835 struct ieee80211_hw *hw, int idx,
836 struct survey_info *survey)
837{
838 struct ieee80211_conf *conf = &hw->conf;
839
840 printk(KERN_DEBUG "%s:%s (idx=%d)\n",
841 wiphy_name(hw->wiphy), __func__, idx);
842
843 if (idx != 0)
844 return -ENOENT;
845
846 /* Current channel */
847 survey->channel = conf->channel;
848
849 /*
850 * Magically conjured noise level --- this is only ok for simulated hardware.
851 *
852 * A real driver which cannot determine the real channel noise MUST NOT
853 * report any noise, especially not a magically conjured one :-)
854 */
855 survey->filled = SURVEY_INFO_NOISE_DBM;
856 survey->noise = -92;
857
858 return 0;
859}
860
aff89a9b
JB		 861#ifdef CONFIG_NL80211_TESTMODE
862/*
863 * This section contains example code for using netlink
864 * attributes with the testmode command in nl80211.
865 */
866
867/* These enums need to be kept in sync with userspace */
868enum hwsim_testmode_attr {
869 __HWSIM_TM_ATTR_INVALID = 0,
870 HWSIM_TM_ATTR_CMD = 1,
871 HWSIM_TM_ATTR_PS = 2,
872
873 /* keep last */
874 __HWSIM_TM_ATTR_AFTER_LAST,
875 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
876};
877
878enum hwsim_testmode_cmd {
879 HWSIM_TM_CMD_SET_PS = 0,
880 HWSIM_TM_CMD_GET_PS = 1,
881};
882
883static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
884 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
885 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
886};
887
888static int hwsim_fops_ps_write(void *dat, u64 val);
889
5bc38193
JB		 890static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
891 void *data, int len)
aff89a9b
JB		 892{
893 struct mac80211_hwsim_data *hwsim = hw->priv;
894 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
895 struct sk_buff *skb;
896 int err, ps;
897
898 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
899 hwsim_testmode_policy);
900 if (err)
901 return err;
902
903 if (!tb[HWSIM_TM_ATTR_CMD])
904 return -EINVAL;
905
906 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
907 case HWSIM_TM_CMD_SET_PS:
908 if (!tb[HWSIM_TM_ATTR_PS])
909 return -EINVAL;
910 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
911 return hwsim_fops_ps_write(hwsim, ps);
912 case HWSIM_TM_CMD_GET_PS:
913 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
914 nla_total_size(sizeof(u32)));
915 if (!skb)
916 return -ENOMEM;
917 NLA_PUT_U32(skb, HWSIM_TM_ATTR_PS, hwsim->ps);
918 return cfg80211_testmode_reply(skb);
919 default:
920 return -EOPNOTSUPP;
921 }
922
923 nla_put_failure:
924 kfree_skb(skb);
925 return -ENOBUFS;
926}
927#endif
928
8b73d13a
JB		 929static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
930 struct ieee80211_vif *vif,
931 enum ieee80211_ampdu_mlme_action action,
932 struct ieee80211_sta *sta, u16 tid, u16 *ssn)
933{
934 switch (action) {
935 case IEEE80211_AMPDU_TX_START:
936 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
937 break;
938 case IEEE80211_AMPDU_TX_STOP:
939 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
940 break;
941 case IEEE80211_AMPDU_TX_OPERATIONAL:
942 break;
943 case IEEE80211_AMPDU_RX_START:
944 case IEEE80211_AMPDU_RX_STOP:
945 break;
946 default:
947 return -EOPNOTSUPP;
948 }
949
950 return 0;
951}
952
a80f7c0b
JB		 953static void mac80211_hwsim_flush(struct ieee80211_hw *hw, bool drop)
954{
955 /*
956 * In this special case, there's nothing we need to
957 * do because hwsim does transmission synchronously.
958 * In the future, when it does transmissions via
959 * userspace, we may need to do something.
960 */
961}
962
69068036
JB		 963struct hw_scan_done {
964 struct delayed_work w;
965 struct ieee80211_hw *hw;
966};
8b73d13a 967
69068036
JB		 968static void hw_scan_done(struct work_struct *work)
969{
970 struct hw_scan_done *hsd =
971 container_of(work, struct hw_scan_done, w.work);
972
973 ieee80211_scan_completed(hsd->hw, false);
974 kfree(hsd);
975}
976
977static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
a060bbfe 978 struct ieee80211_vif *vif,
69068036
JB		 979 struct cfg80211_scan_request *req)
980{
981 struct hw_scan_done *hsd = kzalloc(sizeof(*hsd), GFP_KERNEL);
982 int i;
983
984 if (!hsd)
985 return -ENOMEM;
986
987 hsd->hw = hw;
988 INIT_DELAYED_WORK(&hsd->w, hw_scan_done);
989
f74cb0f7 990 printk(KERN_DEBUG "hwsim hw_scan request\n");
69068036 991 for (i = 0; i < req->n_channels; i++)
f74cb0f7 992 printk(KERN_DEBUG "hwsim hw_scan freq %d\n",
69068036
JB		 993 req->channels[i]->center_freq);
994
995 ieee80211_queue_delayed_work(hw, &hsd->w, 2 * HZ);
996
997 return 0;
998}
999
f74cb0f7
LR		 1000static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw)
1001{
1002 struct mac80211_hwsim_data *hwsim = hw->priv;
1003
1004 mutex_lock(&hwsim->mutex);
1005
1006 if (hwsim->scanning) {
1007 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
1008 goto out;
1009 }
1010
1011 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
1012 hwsim->scanning = true;
1013
1014out:
1015 mutex_unlock(&hwsim->mutex);
1016}
1017
1018static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw)
1019{
1020 struct mac80211_hwsim_data *hwsim = hw->priv;
1021
1022 mutex_lock(&hwsim->mutex);
1023
1024 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
23ff98fc 1025 hwsim->scanning = false;
f74cb0f7
LR		 1026
1027 mutex_unlock(&hwsim->mutex);
1028}
1029
69068036 1030static struct ieee80211_ops mac80211_hwsim_ops =
acc1e7a3
JM		 1031{
1032 .tx = mac80211_hwsim_tx,
1033 .start = mac80211_hwsim_start,
1034 .stop = mac80211_hwsim_stop,
1035 .add_interface = mac80211_hwsim_add_interface,
1036 .remove_interface = mac80211_hwsim_remove_interface,
1037 .config = mac80211_hwsim_config,
1038 .configure_filter = mac80211_hwsim_configure_filter,
8aa21e6f 1039 .bss_info_changed = mac80211_hwsim_bss_info_changed,
1d669cbf
JB		 1040 .sta_add = mac80211_hwsim_sta_add,
1041 .sta_remove = mac80211_hwsim_sta_remove,
8aa21e6f 1042 .sta_notify = mac80211_hwsim_sta_notify,
81c06523 1043 .set_tim = mac80211_hwsim_set_tim,
1e898ff8 1044 .conf_tx = mac80211_hwsim_conf_tx,
1289723e 1045 .get_survey = mac80211_hwsim_get_survey,
aff89a9b 1046 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
8b73d13a 1047 .ampdu_action = mac80211_hwsim_ampdu_action,
f74cb0f7
LR		 1048 .sw_scan_start = mac80211_hwsim_sw_scan,
1049 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
a80f7c0b 1050 .flush = mac80211_hwsim_flush,
acc1e7a3
JM		 1051};
1052
1053
1054static void mac80211_hwsim_free(void)
1055{
0e057d73 1056 struct list_head tmplist, *i, *tmp;
e603d9d8 1057 struct mac80211_hwsim_data *data, *tmpdata;
0e057d73
JB		 1058
1059 INIT_LIST_HEAD(&tmplist);
1060
1061 spin_lock_bh(&hwsim_radio_lock);
1062 list_for_each_safe(i, tmp, &hwsim_radios)
1063 list_move(i, &tmplist);
1064 spin_unlock_bh(&hwsim_radio_lock);
1065
e603d9d8 1066 list_for_each_entry_safe(data, tmpdata, &tmplist, list) {
73606d00 1067 debugfs_remove(data->debugfs_group);
fc6971d4
JM		 1068 debugfs_remove(data->debugfs_ps);
1069 debugfs_remove(data->debugfs);
0e057d73
JB		 1070 ieee80211_unregister_hw(data->hw);
1071 device_unregister(data->dev);
1072 ieee80211_free_hw(data->hw);
acc1e7a3 1073 }
acc1e7a3
JM		 1074 class_destroy(hwsim_class);
1075}
1076
1077
1078static struct device_driver mac80211_hwsim_driver = {
1079 .name = "mac80211_hwsim"
1080};
1081
98d2faae
SH		 1082static const struct net_device_ops hwsim_netdev_ops = {
1083 .ndo_start_xmit = hwsim_mon_xmit,
1084 .ndo_change_mtu = eth_change_mtu,
1085 .ndo_set_mac_address = eth_mac_addr,
1086 .ndo_validate_addr = eth_validate_addr,
1087};
acc1e7a3
JM		 1088
1089static void hwsim_mon_setup(struct net_device *dev)
1090{
98d2faae 1091 dev->netdev_ops = &hwsim_netdev_ops;
acc1e7a3
JM		 1092 dev->destructor = free_netdev;
1093 ether_setup(dev);
1094 dev->tx_queue_len = 0;
1095 dev->type = ARPHRD_IEEE80211_RADIOTAP;
1096 memset(dev->dev_addr, 0, ETH_ALEN);
1097 dev->dev_addr[0] = 0x12;
1098}
1099
1100
fc6971d4
JM		 1101static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
1102{
1103 struct mac80211_hwsim_data *data = dat;
1104 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
fc6971d4
JM		 1105 struct sk_buff *skb;
1106 struct ieee80211_pspoll *pspoll;
1107
1108 if (!vp->assoc)
1109 return;
1110
b235507c
JL		 1111 printk(KERN_DEBUG "%s:%s: send PS-Poll to %pM for aid %d\n",
1112 wiphy_name(data->hw->wiphy), __func__, vp->bssid, vp->aid);
fc6971d4
JM		 1113
1114 skb = dev_alloc_skb(sizeof(*pspoll));
1115 if (!skb)
1116 return;
1117 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
1118 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
1119 IEEE80211_STYPE_PSPOLL |
1120 IEEE80211_FCTL_PM);
1121 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
1122 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
1123 memcpy(pspoll->ta, mac, ETH_ALEN);
4c4c671a 1124 if (!mac80211_hwsim_tx_frame(data->hw, skb))
fc6971d4
JM		 1125 printk(KERN_DEBUG "%s: PS-Poll frame not ack'ed\n", __func__);
1126 dev_kfree_skb(skb);
1127}
1128
1129
1130static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
1131 struct ieee80211_vif *vif, int ps)
1132{
1133 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
fc6971d4
JM		 1134 struct sk_buff *skb;
1135 struct ieee80211_hdr *hdr;
1136
1137 if (!vp->assoc)
1138 return;
1139
b235507c
JL		 1140 printk(KERN_DEBUG "%s:%s: send data::nullfunc to %pM ps=%d\n",
1141 wiphy_name(data->hw->wiphy), __func__, vp->bssid, ps);
fc6971d4
JM		 1142
1143 skb = dev_alloc_skb(sizeof(*hdr));
1144 if (!skb)
1145 return;
1146 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
1147 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1148 IEEE80211_STYPE_NULLFUNC |
1149 (ps ? IEEE80211_FCTL_PM : 0));
1150 hdr->duration_id = cpu_to_le16(0);
1151 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
1152 memcpy(hdr->addr2, mac, ETH_ALEN);
1153 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
4c4c671a 1154 if (!mac80211_hwsim_tx_frame(data->hw, skb))
fc6971d4
JM		 1155 printk(KERN_DEBUG "%s: nullfunc frame not ack'ed\n", __func__);
1156 dev_kfree_skb(skb);
1157}
1158
1159
1160static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
1161 struct ieee80211_vif *vif)
1162{
1163 struct mac80211_hwsim_data *data = dat;
1164 hwsim_send_nullfunc(data, mac, vif, 1);
1165}
1166
1167
1168static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
1169 struct ieee80211_vif *vif)
1170{
1171 struct mac80211_hwsim_data *data = dat;
1172 hwsim_send_nullfunc(data, mac, vif, 0);
1173}
1174
1175
1176static int hwsim_fops_ps_read(void *dat, u64 *val)
1177{
1178 struct mac80211_hwsim_data *data = dat;
1179 *val = data->ps;
1180 return 0;
1181}
1182
1183static int hwsim_fops_ps_write(void *dat, u64 val)
1184{
1185 struct mac80211_hwsim_data *data = dat;
1186 enum ps_mode old_ps;
1187
1188 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
1189 val != PS_MANUAL_POLL)
1190 return -EINVAL;
1191
1192 old_ps = data->ps;
1193 data->ps = val;
1194
1195 if (val == PS_MANUAL_POLL) {
1196 ieee80211_iterate_active_interfaces(data->hw,
1197 hwsim_send_ps_poll, data);
1198 data->ps_poll_pending = true;
1199 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
1200 ieee80211_iterate_active_interfaces(data->hw,
1201 hwsim_send_nullfunc_ps,
1202 data);
1203 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
1204 ieee80211_iterate_active_interfaces(data->hw,
1205 hwsim_send_nullfunc_no_ps,
1206 data);
1207 }
1208
1209 return 0;
1210}
1211
1212DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
1213 "%llu\n");
1214
1215
73606d00
DW		 1216static int hwsim_fops_group_read(void *dat, u64 *val)
1217{
1218 struct mac80211_hwsim_data *data = dat;
1219 *val = data->group;
1220 return 0;
1221}
1222
1223static int hwsim_fops_group_write(void *dat, u64 val)
1224{
1225 struct mac80211_hwsim_data *data = dat;
1226 data->group = val;
1227 return 0;
1228}
1229
1230DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
1231 hwsim_fops_group_read, hwsim_fops_group_write,
1232 "%llx\n");
1233
acc1e7a3
JM		 1234static int __init init_mac80211_hwsim(void)
1235{
1236 int i, err = 0;
1237 u8 addr[ETH_ALEN];
1238 struct mac80211_hwsim_data *data;
1239 struct ieee80211_hw *hw;
22cad735 1240 enum ieee80211_band band;
acc1e7a3 1241
0e057d73 1242 if (radios < 1 || radios > 100)
acc1e7a3
JM		 1243 return -EINVAL;
1244
f74cb0f7 1245 if (fake_hw_scan) {
69068036 1246 mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan;
f74cb0f7
LR		 1247 mac80211_hwsim_ops.sw_scan_start = NULL;
1248 mac80211_hwsim_ops.sw_scan_complete = NULL;
1249 }
69068036 1250
0e057d73
JB		 1251 spin_lock_init(&hwsim_radio_lock);
1252 INIT_LIST_HEAD(&hwsim_radios);
acc1e7a3
JM		 1253
1254 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
0e057d73 1255 if (IS_ERR(hwsim_class))
acc1e7a3 1256 return PTR_ERR(hwsim_class);
acc1e7a3
JM		 1257
1258 memset(addr, 0, ETH_ALEN);
1259 addr[0] = 0x02;
1260
0e057d73 1261 for (i = 0; i < radios; i++) {
acc1e7a3
JM		 1262 printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
1263 i);
1264 hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);
0e057d73 1265 if (!hw) {
acc1e7a3
JM		 1266 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
1267 "failed\n");
1268 err = -ENOMEM;
1269 goto failed;
1270 }
acc1e7a3 1271 data = hw->priv;
0e057d73
JB		 1272 data->hw = hw;
1273
6e05d6c4
GKH		 1274 data->dev = device_create(hwsim_class, NULL, 0, hw,
1275 "hwsim%d", i);
acc1e7a3 1276 if (IS_ERR(data->dev)) {
e800f17c 1277 printk(KERN_DEBUG
6e05d6c4 1278 "mac80211_hwsim: device_create "
acc1e7a3
JM		 1279 "failed (%ld)\n", PTR_ERR(data->dev));
1280 err = -ENOMEM;
3a33cc10 1281 goto failed_drvdata;
acc1e7a3
JM		 1282 }
1283 data->dev->driver = &mac80211_hwsim_driver;
acc1e7a3
JM		 1284
1285 SET_IEEE80211_DEV(hw, data->dev);
1286 addr[3] = i >> 8;
1287 addr[4] = i;
ef15aac6
JB		 1288 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
1289 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
1290 data->addresses[1].addr[0] |= 0x40;
1291 hw->wiphy->n_addresses = 2;
1292 hw->wiphy->addresses = data->addresses;
acc1e7a3
JM		 1293
1294 hw->channel_change_time = 1;
87e8b64e 1295 hw->queues = 4;
f59ac048
LR		 1296 hw->wiphy->interface_modes =
1297 BIT(NL80211_IFTYPE_STATION) |
55b39619
AY		 1298 BIT(NL80211_IFTYPE_AP) |
1299 BIT(NL80211_IFTYPE_MESH_POINT);
acc1e7a3 1300
4b14c96d 1301 hw->flags = IEEE80211_HW_MFP_CAPABLE |
0f78231b
JB		 1302 IEEE80211_HW_SIGNAL_DBM |
1303 IEEE80211_HW_SUPPORTS_STATIC_SMPS |
a75b4363
JB		 1304 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
1305 IEEE80211_HW_AMPDU_AGGREGATION;
fa77533e 1306
8aa21e6f
JB		 1307 /* ask mac80211 to reserve space for magic */
1308 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
81c06523 1309 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
8aa21e6f 1310
22cad735
LR		 1311 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
1312 sizeof(hwsim_channels_2ghz));
1313 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
1314 sizeof(hwsim_channels_5ghz));
acc1e7a3 1315 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
22cad735
LR		 1316
1317 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
1318 struct ieee80211_supported_band *sband = &data->bands[band];
1319 switch (band) {
1320 case IEEE80211_BAND_2GHZ:
1321 sband->channels = data->channels_2ghz;
1322 sband->n_channels =
1323 ARRAY_SIZE(hwsim_channels_2ghz);
d130eb49
JB		 1324 sband->bitrates = data->rates;
1325 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
22cad735
LR		 1326 break;
1327 case IEEE80211_BAND_5GHZ:
1328 sband->channels = data->channels_5ghz;
1329 sband->n_channels =
1330 ARRAY_SIZE(hwsim_channels_5ghz);
d130eb49
JB		 1331 sband->bitrates = data->rates + 4;
1332 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
22cad735
LR		 1333 break;
1334 default:
1335 break;
1336 }
1337
22cad735
LR		 1338 sband->ht_cap.ht_supported = true;
1339 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
1340 IEEE80211_HT_CAP_GRN_FLD |
1341 IEEE80211_HT_CAP_SGI_40 |
1342 IEEE80211_HT_CAP_DSSSCCK40;
1343 sband->ht_cap.ampdu_factor = 0x3;
1344 sband->ht_cap.ampdu_density = 0x6;
1345 memset(&sband->ht_cap.mcs, 0,
1346 sizeof(sband->ht_cap.mcs));
1347 sband->ht_cap.mcs.rx_mask[0] = 0xff;
1348 sband->ht_cap.mcs.rx_mask[1] = 0xff;
1349 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1350
1351 hw->wiphy->bands[band] = sband;
1352 }
73606d00
DW		 1353 /* By default all radios are belonging to the first group */
1354 data->group = 1;
f74cb0f7 1355 mutex_init(&data->mutex);
acc1e7a3 1356
4a5af9c2
LR		 1357 /* Work to be done prior to ieee80211_register_hw() */
1358 switch (regtest) {
1359 case HWSIM_REGTEST_DISABLED:
1360 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
1361 case HWSIM_REGTEST_DRIVER_REG_ALL:
1362 case HWSIM_REGTEST_DIFF_COUNTRY:
1363 /*
1364 * Nothing to be done for driver regulatory domain
1365 * hints prior to ieee80211_register_hw()
1366 */
1367 break;
1368 case HWSIM_REGTEST_WORLD_ROAM:
1369 if (i == 0) {
5be83de5 1370 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 1371 wiphy_apply_custom_regulatory(hw->wiphy,
1372 &hwsim_world_regdom_custom_01);
1373 }
1374 break;
1375 case HWSIM_REGTEST_CUSTOM_WORLD:
5be83de5 1376 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 1377 wiphy_apply_custom_regulatory(hw->wiphy,
1378 &hwsim_world_regdom_custom_01);
1379 break;
1380 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1381 if (i == 0) {
5be83de5 1382 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 1383 wiphy_apply_custom_regulatory(hw->wiphy,
1384 &hwsim_world_regdom_custom_01);
1385 } else if (i == 1) {
5be83de5 1386 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 1387 wiphy_apply_custom_regulatory(hw->wiphy,
1388 &hwsim_world_regdom_custom_02);
1389 }
1390 break;
1391 case HWSIM_REGTEST_STRICT_ALL:
5be83de5 1392 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
4a5af9c2
LR		 1393 break;
1394 case HWSIM_REGTEST_STRICT_FOLLOW:
1395 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1396 if (i == 0)
5be83de5 1397 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
4a5af9c2
LR		 1398 break;
1399 case HWSIM_REGTEST_ALL:
1400 if (i == 0) {
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 } else if (i == 1) {
5be83de5 1405 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 1406 wiphy_apply_custom_regulatory(hw->wiphy,
1407 &hwsim_world_regdom_custom_02);
1408 } else if (i == 4)
5be83de5 1409 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
4a5af9c2
LR		 1410 break;
1411 default:
1412 break;
1413 }
1414
98dfaa57
LR		 1415 /* give the regulatory workqueue a chance to run */
1416 if (regtest)
1417 schedule_timeout_interruptible(1);
acc1e7a3
JM		 1418 err = ieee80211_register_hw(hw);
1419 if (err < 0) {
1420 printk(KERN_DEBUG "mac80211_hwsim: "
1421 "ieee80211_register_hw failed (%d)\n", err);
3a33cc10 1422 goto failed_hw;
acc1e7a3
JM		 1423 }
1424
4a5af9c2
LR		 1425 /* Work to be done after to ieee80211_register_hw() */
1426 switch (regtest) {
1427 case HWSIM_REGTEST_WORLD_ROAM:
1428 case HWSIM_REGTEST_DISABLED:
1429 break;
1430 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
1431 if (!i)
1432 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1433 break;
1434 case HWSIM_REGTEST_DRIVER_REG_ALL:
1435 case HWSIM_REGTEST_STRICT_ALL:
1436 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1437 break;
1438 case HWSIM_REGTEST_DIFF_COUNTRY:
1439 if (i < ARRAY_SIZE(hwsim_alpha2s))
1440 regulatory_hint(hw->wiphy, hwsim_alpha2s[i]);
1441 break;
1442 case HWSIM_REGTEST_CUSTOM_WORLD:
1443 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1444 /*
1445 * Nothing to be done for custom world regulatory
1446 * domains after to ieee80211_register_hw
1447 */
1448 break;
1449 case HWSIM_REGTEST_STRICT_FOLLOW:
1450 if (i == 0)
1451 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1452 break;
1453 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1454 if (i == 0)
1455 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1456 else if (i == 1)
1457 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1458 break;
1459 case HWSIM_REGTEST_ALL:
1460 if (i == 2)
1461 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1462 else if (i == 3)
1463 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1464 else if (i == 4)
1465 regulatory_hint(hw->wiphy, hwsim_alpha2s[2]);
1466 break;
1467 default:
1468 break;
1469 }
1470
e174961c 1471 printk(KERN_DEBUG "%s: hwaddr %pM registered\n",
acc1e7a3 1472 wiphy_name(hw->wiphy),
e174961c 1473 hw->wiphy->perm_addr);
acc1e7a3 1474
fc6971d4
JM		 1475 data->debugfs = debugfs_create_dir("hwsim",
1476 hw->wiphy->debugfsdir);
1477 data->debugfs_ps = debugfs_create_file("ps", 0666,
1478 data->debugfs, data,
1479 &hwsim_fops_ps);
73606d00
DW		 1480 data->debugfs_group = debugfs_create_file("group", 0666,
1481 data->debugfs, data,
1482 &hwsim_fops_group);
fc6971d4 1483
acc1e7a3
JM		 1484 setup_timer(&data->beacon_timer, mac80211_hwsim_beacon,
1485 (unsigned long) hw);
0e057d73
JB		 1486
1487 list_add_tail(&data->list, &hwsim_radios);
acc1e7a3
JM		 1488 }
1489
1490 hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
1491 if (hwsim_mon == NULL)
1492 goto failed;
1493
1494 rtnl_lock();
1495
1496 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
3a33cc10 1497 if (err < 0)
acc1e7a3 1498 goto failed_mon;
3a33cc10 1499
acc1e7a3
JM		 1500
1501 err = register_netdevice(hwsim_mon);
1502 if (err < 0)
1503 goto failed_mon;
1504
1505 rtnl_unlock();
1506
1507 return 0;
1508
1509failed_mon:
1510 rtnl_unlock();
1511 free_netdev(hwsim_mon);
3a33cc10
IS		 1512 mac80211_hwsim_free();
1513 return err;
acc1e7a3 1514
3a33cc10
IS		 1515failed_hw:
1516 device_unregister(data->dev);
1517failed_drvdata:
1518 ieee80211_free_hw(hw);
acc1e7a3
JM		 1519failed:
1520 mac80211_hwsim_free();
1521 return err;
1522}
1523
1524
1525static void __exit exit_mac80211_hwsim(void)
1526{
0e057d73 1527 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
acc1e7a3 1528
acc1e7a3 1529 mac80211_hwsim_free();
5d416351 1530 unregister_netdev(hwsim_mon);
acc1e7a3
JM		 1531}
1532
1533
1534module_init(init_mac80211_hwsim);
1535module_exit(exit_mac80211_hwsim);
Clone of davem's net-next-2.6 tree