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netlink: Rename pid to portid to avoid confusion
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / net / wireless / mac80211_hwsim.c
1 /*
2 * mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211
3 * Copyright (c) 2008, Jouni Malinen <j@w1.fi>
4 * Copyright (c) 2011, Javier Lopez <jlopex@gmail.com>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10
11 /*
12 * TODO:
13 * - Add TSF sync and fix IBSS beacon transmission by adding
14 * competition for "air time" at TBTT
15 * - RX filtering based on filter configuration (data->rx_filter)
16 */
17
18 #include <linux/list.h>
19 #include <linux/slab.h>
20 #include <linux/spinlock.h>
21 #include <net/dst.h>
22 #include <net/xfrm.h>
23 #include <net/mac80211.h>
24 #include <net/ieee80211_radiotap.h>
25 #include <linux/if_arp.h>
26 #include <linux/rtnetlink.h>
27 #include <linux/etherdevice.h>
28 #include <linux/debugfs.h>
29 #include <linux/module.h>
30 #include <linux/ktime.h>
31 #include <net/genetlink.h>
32 #include "mac80211_hwsim.h"
33
34 #define WARN_QUEUE 100
35 #define MAX_QUEUE 200
36
37 MODULE_AUTHOR("Jouni Malinen");
38 MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
39 MODULE_LICENSE("GPL");
40
41 static u32 wmediumd_portid;
42
43 static int radios = 2;
44 module_param(radios, int, 0444);
45 MODULE_PARM_DESC(radios, "Number of simulated radios");
46
47 static bool fake_hw_scan;
48 module_param(fake_hw_scan, bool, 0444);
49 MODULE_PARM_DESC(fake_hw_scan, "Install fake (no-op) hw-scan handler");
50
51 /**
52 * enum hwsim_regtest - the type of regulatory tests we offer
53 *
54 * These are the different values you can use for the regtest
55 * module parameter. This is useful to help test world roaming
56 * and the driver regulatory_hint() call and combinations of these.
57 * If you want to do specific alpha2 regulatory domain tests simply
58 * use the userspace regulatory request as that will be respected as
59 * well without the need of this module parameter. This is designed
60 * only for testing the driver regulatory request, world roaming
61 * and all possible combinations.
62 *
63 * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
64 * this is the default value.
65 * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
66 * hint, only one driver regulatory hint will be sent as such the
67 * secondary radios are expected to follow.
68 * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
69 * request with all radios reporting the same regulatory domain.
70 * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
71 * different regulatory domains requests. Expected behaviour is for
72 * an intersection to occur but each device will still use their
73 * respective regulatory requested domains. Subsequent radios will
74 * use the resulting intersection.
75 * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We accomplish
76 * this by using a custom beacon-capable regulatory domain for the first
77 * radio. All other device world roam.
78 * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
79 * domain requests. All radios will adhere to this custom world regulatory
80 * domain.
81 * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
82 * domain requests. The first radio will adhere to the first custom world
83 * regulatory domain, the second one to the second custom world regulatory
84 * domain. All other devices will world roam.
85 * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain
86 * settings, only the first radio will send a regulatory domain request
87 * and use strict settings. The rest of the radios are expected to follow.
88 * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
89 * settings. All radios will adhere to this.
90 * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
91 * domain settings, combined with secondary driver regulatory domain
92 * settings. The first radio will get a strict regulatory domain setting
93 * using the first driver regulatory request and the second radio will use
94 * non-strict settings using the second driver regulatory request. All
95 * other devices should follow the intersection created between the
96 * first two.
97 * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
98 * at least 6 radios for a complete test. We will test in this order:
99 * 1 - driver custom world regulatory domain
100 * 2 - second custom world regulatory domain
101 * 3 - first driver regulatory domain request
102 * 4 - second driver regulatory domain request
103 * 5 - strict regulatory domain settings using the third driver regulatory
104 * domain request
105 * 6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
106 * regulatory requests.
107 */
108 enum hwsim_regtest {
109 HWSIM_REGTEST_DISABLED = 0,
110 HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1,
111 HWSIM_REGTEST_DRIVER_REG_ALL = 2,
112 HWSIM_REGTEST_DIFF_COUNTRY = 3,
113 HWSIM_REGTEST_WORLD_ROAM = 4,
114 HWSIM_REGTEST_CUSTOM_WORLD = 5,
115 HWSIM_REGTEST_CUSTOM_WORLD_2 = 6,
116 HWSIM_REGTEST_STRICT_FOLLOW = 7,
117 HWSIM_REGTEST_STRICT_ALL = 8,
118 HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9,
119 HWSIM_REGTEST_ALL = 10,
120 };
121
122 /* Set to one of the HWSIM_REGTEST_* values above */
123 static int regtest = HWSIM_REGTEST_DISABLED;
124 module_param(regtest, int, 0444);
125 MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run");
126
127 static const char *hwsim_alpha2s[] = {
128 "FI",
129 "AL",
130 "US",
131 "DE",
132 "JP",
133 "AL",
134 };
135
136 static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = {
137 .n_reg_rules = 4,
138 .alpha2 = "99",
139 .reg_rules = {
140 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
141 REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
142 REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
143 REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
144 }
145 };
146
147 static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = {
148 .n_reg_rules = 2,
149 .alpha2 = "99",
150 .reg_rules = {
151 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
152 REG_RULE(5725-10, 5850+10, 40, 0, 30,
153 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
154 }
155 };
156
157 struct hwsim_vif_priv {
158 u32 magic;
159 u8 bssid[ETH_ALEN];
160 bool assoc;
161 u16 aid;
162 };
163
164 #define HWSIM_VIF_MAGIC 0x69537748
165
166 static inline void hwsim_check_magic(struct ieee80211_vif *vif)
167 {
168 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
169 WARN_ON(vp->magic != HWSIM_VIF_MAGIC);
170 }
171
172 static inline void hwsim_set_magic(struct ieee80211_vif *vif)
173 {
174 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
175 vp->magic = HWSIM_VIF_MAGIC;
176 }
177
178 static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
179 {
180 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
181 vp->magic = 0;
182 }
183
184 struct hwsim_sta_priv {
185 u32 magic;
186 };
187
188 #define HWSIM_STA_MAGIC 0x6d537748
189
190 static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
191 {
192 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
193 WARN_ON(sp->magic != HWSIM_STA_MAGIC);
194 }
195
196 static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
197 {
198 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
199 sp->magic = HWSIM_STA_MAGIC;
200 }
201
202 static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
203 {
204 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
205 sp->magic = 0;
206 }
207
208 static struct class *hwsim_class;
209
210 static struct net_device *hwsim_mon; /* global monitor netdev */
211
212 #define CHAN2G(_freq) { \
213 .band = IEEE80211_BAND_2GHZ, \
214 .center_freq = (_freq), \
215 .hw_value = (_freq), \
216 .max_power = 20, \
217 }
218
219 #define CHAN5G(_freq) { \
220 .band = IEEE80211_BAND_5GHZ, \
221 .center_freq = (_freq), \
222 .hw_value = (_freq), \
223 .max_power = 20, \
224 }
225
226 static const struct ieee80211_channel hwsim_channels_2ghz[] = {
227 CHAN2G(2412), /* Channel 1 */
228 CHAN2G(2417), /* Channel 2 */
229 CHAN2G(2422), /* Channel 3 */
230 CHAN2G(2427), /* Channel 4 */
231 CHAN2G(2432), /* Channel 5 */
232 CHAN2G(2437), /* Channel 6 */
233 CHAN2G(2442), /* Channel 7 */
234 CHAN2G(2447), /* Channel 8 */
235 CHAN2G(2452), /* Channel 9 */
236 CHAN2G(2457), /* Channel 10 */
237 CHAN2G(2462), /* Channel 11 */
238 CHAN2G(2467), /* Channel 12 */
239 CHAN2G(2472), /* Channel 13 */
240 CHAN2G(2484), /* Channel 14 */
241 };
242
243 static const struct ieee80211_channel hwsim_channels_5ghz[] = {
244 CHAN5G(5180), /* Channel 36 */
245 CHAN5G(5200), /* Channel 40 */
246 CHAN5G(5220), /* Channel 44 */
247 CHAN5G(5240), /* Channel 48 */
248
249 CHAN5G(5260), /* Channel 52 */
250 CHAN5G(5280), /* Channel 56 */
251 CHAN5G(5300), /* Channel 60 */
252 CHAN5G(5320), /* Channel 64 */
253
254 CHAN5G(5500), /* Channel 100 */
255 CHAN5G(5520), /* Channel 104 */
256 CHAN5G(5540), /* Channel 108 */
257 CHAN5G(5560), /* Channel 112 */
258 CHAN5G(5580), /* Channel 116 */
259 CHAN5G(5600), /* Channel 120 */
260 CHAN5G(5620), /* Channel 124 */
261 CHAN5G(5640), /* Channel 128 */
262 CHAN5G(5660), /* Channel 132 */
263 CHAN5G(5680), /* Channel 136 */
264 CHAN5G(5700), /* Channel 140 */
265
266 CHAN5G(5745), /* Channel 149 */
267 CHAN5G(5765), /* Channel 153 */
268 CHAN5G(5785), /* Channel 157 */
269 CHAN5G(5805), /* Channel 161 */
270 CHAN5G(5825), /* Channel 165 */
271 };
272
273 static const struct ieee80211_rate hwsim_rates[] = {
274 { .bitrate = 10 },
275 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
276 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
277 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
278 { .bitrate = 60 },
279 { .bitrate = 90 },
280 { .bitrate = 120 },
281 { .bitrate = 180 },
282 { .bitrate = 240 },
283 { .bitrate = 360 },
284 { .bitrate = 480 },
285 { .bitrate = 540 }
286 };
287
288 static spinlock_t hwsim_radio_lock;
289 static struct list_head hwsim_radios;
290
291 struct mac80211_hwsim_data {
292 struct list_head list;
293 struct ieee80211_hw *hw;
294 struct device *dev;
295 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
296 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
297 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
298 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
299
300 struct mac_address addresses[2];
301
302 struct ieee80211_channel *channel;
303 unsigned long beacon_int; /* in jiffies unit */
304 unsigned int rx_filter;
305 bool started, idle, scanning;
306 struct mutex mutex;
307 struct timer_list beacon_timer;
308 enum ps_mode {
309 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
310 } ps;
311 bool ps_poll_pending;
312 struct dentry *debugfs;
313 struct dentry *debugfs_ps;
314
315 struct sk_buff_head pending; /* packets pending */
316 /*
317 * Only radios in the same group can communicate together (the
318 * channel has to match too). Each bit represents a group. A
319 * radio can be in more then one group.
320 */
321 u64 group;
322 struct dentry *debugfs_group;
323
324 int power_level;
325
326 /* difference between this hw's clock and the real clock, in usecs */
327 u64 tsf_offset;
328 };
329
330
331 struct hwsim_radiotap_hdr {
332 struct ieee80211_radiotap_header hdr;
333 __le64 rt_tsft;
334 u8 rt_flags;
335 u8 rt_rate;
336 __le16 rt_channel;
337 __le16 rt_chbitmask;
338 } __packed;
339
340 /* MAC80211_HWSIM netlinf family */
341 static struct genl_family hwsim_genl_family = {
342 .id = GENL_ID_GENERATE,
343 .hdrsize = 0,
344 .name = "MAC80211_HWSIM",
345 .version = 1,
346 .maxattr = HWSIM_ATTR_MAX,
347 };
348
349 /* MAC80211_HWSIM netlink policy */
350
351 static struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
352 [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC,
353 .len = 6*sizeof(u8) },
354 [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC,
355 .len = 6*sizeof(u8) },
356 [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
357 .len = IEEE80211_MAX_DATA_LEN },
358 [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
359 [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
360 [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
361 [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC,
362 .len = IEEE80211_TX_MAX_RATES*sizeof(
363 struct hwsim_tx_rate)},
364 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
365 };
366
367 static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
368 struct net_device *dev)
369 {
370 /* TODO: allow packet injection */
371 dev_kfree_skb(skb);
372 return NETDEV_TX_OK;
373 }
374
375 static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
376 {
377 struct timeval tv = ktime_to_timeval(ktime_get_real());
378 u64 now = tv.tv_sec * USEC_PER_SEC + tv.tv_usec;
379 return cpu_to_le64(now + data->tsf_offset);
380 }
381
382 static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
383 struct ieee80211_vif *vif)
384 {
385 struct mac80211_hwsim_data *data = hw->priv;
386 return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
387 }
388
389 static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
390 struct ieee80211_vif *vif, u64 tsf)
391 {
392 struct mac80211_hwsim_data *data = hw->priv;
393 struct timeval tv = ktime_to_timeval(ktime_get_real());
394 u64 now = tv.tv_sec * USEC_PER_SEC + tv.tv_usec;
395 data->tsf_offset = tsf - now;
396 }
397
398 static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
399 struct sk_buff *tx_skb)
400 {
401 struct mac80211_hwsim_data *data = hw->priv;
402 struct sk_buff *skb;
403 struct hwsim_radiotap_hdr *hdr;
404 u16 flags;
405 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
406 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
407
408 if (!netif_running(hwsim_mon))
409 return;
410
411 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
412 if (skb == NULL)
413 return;
414
415 hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
416 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
417 hdr->hdr.it_pad = 0;
418 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
419 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
420 (1 << IEEE80211_RADIOTAP_RATE) |
421 (1 << IEEE80211_RADIOTAP_TSFT) |
422 (1 << IEEE80211_RADIOTAP_CHANNEL));
423 hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
424 hdr->rt_flags = 0;
425 hdr->rt_rate = txrate->bitrate / 5;
426 hdr->rt_channel = cpu_to_le16(data->channel->center_freq);
427 flags = IEEE80211_CHAN_2GHZ;
428 if (txrate->flags & IEEE80211_RATE_ERP_G)
429 flags |= IEEE80211_CHAN_OFDM;
430 else
431 flags |= IEEE80211_CHAN_CCK;
432 hdr->rt_chbitmask = cpu_to_le16(flags);
433
434 skb->dev = hwsim_mon;
435 skb_set_mac_header(skb, 0);
436 skb->ip_summed = CHECKSUM_UNNECESSARY;
437 skb->pkt_type = PACKET_OTHERHOST;
438 skb->protocol = htons(ETH_P_802_2);
439 memset(skb->cb, 0, sizeof(skb->cb));
440 netif_rx(skb);
441 }
442
443
444 static void mac80211_hwsim_monitor_ack(struct ieee80211_hw *hw, const u8 *addr)
445 {
446 struct mac80211_hwsim_data *data = hw->priv;
447 struct sk_buff *skb;
448 struct hwsim_radiotap_hdr *hdr;
449 u16 flags;
450 struct ieee80211_hdr *hdr11;
451
452 if (!netif_running(hwsim_mon))
453 return;
454
455 skb = dev_alloc_skb(100);
456 if (skb == NULL)
457 return;
458
459 hdr = (struct hwsim_radiotap_hdr *) skb_put(skb, sizeof(*hdr));
460 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
461 hdr->hdr.it_pad = 0;
462 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
463 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
464 (1 << IEEE80211_RADIOTAP_CHANNEL));
465 hdr->rt_flags = 0;
466 hdr->rt_rate = 0;
467 hdr->rt_channel = cpu_to_le16(data->channel->center_freq);
468 flags = IEEE80211_CHAN_2GHZ;
469 hdr->rt_chbitmask = cpu_to_le16(flags);
470
471 hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
472 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
473 IEEE80211_STYPE_ACK);
474 hdr11->duration_id = cpu_to_le16(0);
475 memcpy(hdr11->addr1, addr, ETH_ALEN);
476
477 skb->dev = hwsim_mon;
478 skb_set_mac_header(skb, 0);
479 skb->ip_summed = CHECKSUM_UNNECESSARY;
480 skb->pkt_type = PACKET_OTHERHOST;
481 skb->protocol = htons(ETH_P_802_2);
482 memset(skb->cb, 0, sizeof(skb->cb));
483 netif_rx(skb);
484 }
485
486
487 static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
488 struct sk_buff *skb)
489 {
490 switch (data->ps) {
491 case PS_DISABLED:
492 return true;
493 case PS_ENABLED:
494 return false;
495 case PS_AUTO_POLL:
496 /* TODO: accept (some) Beacons by default and other frames only
497 * if pending PS-Poll has been sent */
498 return true;
499 case PS_MANUAL_POLL:
500 /* Allow unicast frames to own address if there is a pending
501 * PS-Poll */
502 if (data->ps_poll_pending &&
503 memcmp(data->hw->wiphy->perm_addr, skb->data + 4,
504 ETH_ALEN) == 0) {
505 data->ps_poll_pending = false;
506 return true;
507 }
508 return false;
509 }
510
511 return true;
512 }
513
514
515 struct mac80211_hwsim_addr_match_data {
516 bool ret;
517 const u8 *addr;
518 };
519
520 static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
521 struct ieee80211_vif *vif)
522 {
523 struct mac80211_hwsim_addr_match_data *md = data;
524 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
525 md->ret = true;
526 }
527
528
529 static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
530 const u8 *addr)
531 {
532 struct mac80211_hwsim_addr_match_data md;
533
534 if (memcmp(addr, data->hw->wiphy->perm_addr, ETH_ALEN) == 0)
535 return true;
536
537 md.ret = false;
538 md.addr = addr;
539 ieee80211_iterate_active_interfaces_atomic(data->hw,
540 mac80211_hwsim_addr_iter,
541 &md);
542
543 return md.ret;
544 }
545
546 static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
547 struct sk_buff *my_skb,
548 int dst_portid)
549 {
550 struct sk_buff *skb;
551 struct mac80211_hwsim_data *data = hw->priv;
552 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
553 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
554 void *msg_head;
555 unsigned int hwsim_flags = 0;
556 int i;
557 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
558
559 if (data->idle) {
560 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
561 dev_kfree_skb(my_skb);
562 return;
563 }
564
565 if (data->ps != PS_DISABLED)
566 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
567 /* If the queue contains MAX_QUEUE skb's drop some */
568 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
569 /* Droping until WARN_QUEUE level */
570 while (skb_queue_len(&data->pending) >= WARN_QUEUE)
571 skb_dequeue(&data->pending);
572 }
573
574 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
575 if (skb == NULL)
576 goto nla_put_failure;
577
578 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
579 HWSIM_CMD_FRAME);
580 if (msg_head == NULL) {
581 printk(KERN_DEBUG "mac80211_hwsim: problem with msg_head\n");
582 goto nla_put_failure;
583 }
584
585 if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
586 sizeof(struct mac_address), data->addresses[1].addr))
587 goto nla_put_failure;
588
589 /* We get the skb->data */
590 if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
591 goto nla_put_failure;
592
593 /* We get the flags for this transmission, and we translate them to
594 wmediumd flags */
595
596 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
597 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
598
599 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
600 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
601
602 if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
603 goto nla_put_failure;
604
605 /* We get the tx control (rate and retries) info*/
606
607 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
608 tx_attempts[i].idx = info->status.rates[i].idx;
609 tx_attempts[i].count = info->status.rates[i].count;
610 }
611
612 if (nla_put(skb, HWSIM_ATTR_TX_INFO,
613 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
614 tx_attempts))
615 goto nla_put_failure;
616
617 /* We create a cookie to identify this skb */
618 if (nla_put_u64(skb, HWSIM_ATTR_COOKIE, (unsigned long) my_skb))
619 goto nla_put_failure;
620
621 genlmsg_end(skb, msg_head);
622 genlmsg_unicast(&init_net, skb, dst_portid);
623
624 /* Enqueue the packet */
625 skb_queue_tail(&data->pending, my_skb);
626 return;
627
628 nla_put_failure:
629 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
630 }
631
632 static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
633 struct sk_buff *skb)
634 {
635 struct mac80211_hwsim_data *data = hw->priv, *data2;
636 bool ack = false;
637 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
638 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
639 struct ieee80211_rx_status rx_status;
640 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
641
642 if (data->idle) {
643 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
644 return false;
645 }
646
647 memset(&rx_status, 0, sizeof(rx_status));
648 rx_status.flag |= RX_FLAG_MACTIME_MPDU;
649 rx_status.freq = data->channel->center_freq;
650 rx_status.band = data->channel->band;
651 rx_status.rate_idx = info->control.rates[0].idx;
652 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
653 rx_status.flag |= RX_FLAG_HT;
654 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
655 rx_status.flag |= RX_FLAG_40MHZ;
656 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
657 rx_status.flag |= RX_FLAG_SHORT_GI;
658 /* TODO: simulate real signal strength (and optional packet loss) */
659 rx_status.signal = data->power_level - 50;
660
661 if (data->ps != PS_DISABLED)
662 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
663
664 /* release the skb's source info */
665 skb_orphan(skb);
666 skb_dst_drop(skb);
667 skb->mark = 0;
668 secpath_reset(skb);
669 nf_reset(skb);
670
671 /* Copy skb to all enabled radios that are on the current frequency */
672 spin_lock(&hwsim_radio_lock);
673 list_for_each_entry(data2, &hwsim_radios, list) {
674 struct sk_buff *nskb;
675 struct ieee80211_mgmt *mgmt;
676
677 if (data == data2)
678 continue;
679
680 if (data2->idle || !data2->started ||
681 !hwsim_ps_rx_ok(data2, skb) || !data2->channel ||
682 data->channel->center_freq != data2->channel->center_freq ||
683 !(data->group & data2->group))
684 continue;
685
686 nskb = skb_copy(skb, GFP_ATOMIC);
687 if (nskb == NULL)
688 continue;
689
690 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
691 ack = true;
692
693 /* set bcn timestamp relative to receiver mactime */
694 rx_status.mactime =
695 le64_to_cpu(__mac80211_hwsim_get_tsf(data2));
696 mgmt = (struct ieee80211_mgmt *) nskb->data;
697 if (ieee80211_is_beacon(mgmt->frame_control) ||
698 ieee80211_is_probe_resp(mgmt->frame_control))
699 mgmt->u.beacon.timestamp = cpu_to_le64(
700 rx_status.mactime +
701 (data->tsf_offset - data2->tsf_offset) +
702 24 * 8 * 10 / txrate->bitrate);
703
704 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
705 ieee80211_rx_irqsafe(data2->hw, nskb);
706 }
707 spin_unlock(&hwsim_radio_lock);
708
709 return ack;
710 }
711
712 static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
713 struct ieee80211_tx_control *control,
714 struct sk_buff *skb)
715 {
716 bool ack;
717 struct ieee80211_tx_info *txi;
718 u32 _portid;
719
720 mac80211_hwsim_monitor_rx(hw, skb);
721
722 if (skb->len < 10) {
723 /* Should not happen; just a sanity check for addr1 use */
724 dev_kfree_skb(skb);
725 return;
726 }
727
728 /* wmediumd mode check */
729 _portid = ACCESS_ONCE(wmediumd_portid);
730
731 if (_portid)
732 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
733
734 /* NO wmediumd detected, perfect medium simulation */
735 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb);
736
737 if (ack && skb->len >= 16) {
738 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
739 mac80211_hwsim_monitor_ack(hw, hdr->addr2);
740 }
741
742 txi = IEEE80211_SKB_CB(skb);
743
744 ieee80211_tx_info_clear_status(txi);
745
746 /* frame was transmitted at most favorable rate at first attempt */
747 txi->control.rates[0].count = 1;
748 txi->control.rates[1].idx = -1;
749
750 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
751 txi->flags |= IEEE80211_TX_STAT_ACK;
752 ieee80211_tx_status_irqsafe(hw, skb);
753 }
754
755
756 static int mac80211_hwsim_start(struct ieee80211_hw *hw)
757 {
758 struct mac80211_hwsim_data *data = hw->priv;
759 wiphy_debug(hw->wiphy, "%s\n", __func__);
760 data->started = true;
761 return 0;
762 }
763
764
765 static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
766 {
767 struct mac80211_hwsim_data *data = hw->priv;
768 data->started = false;
769 del_timer(&data->beacon_timer);
770 wiphy_debug(hw->wiphy, "%s\n", __func__);
771 }
772
773
774 static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
775 struct ieee80211_vif *vif)
776 {
777 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
778 __func__, ieee80211_vif_type_p2p(vif),
779 vif->addr);
780 hwsim_set_magic(vif);
781 return 0;
782 }
783
784
785 static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
786 struct ieee80211_vif *vif,
787 enum nl80211_iftype newtype,
788 bool newp2p)
789 {
790 newtype = ieee80211_iftype_p2p(newtype, newp2p);
791 wiphy_debug(hw->wiphy,
792 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
793 __func__, ieee80211_vif_type_p2p(vif),
794 newtype, vif->addr);
795 hwsim_check_magic(vif);
796
797 return 0;
798 }
799
800 static void mac80211_hwsim_remove_interface(
801 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
802 {
803 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
804 __func__, ieee80211_vif_type_p2p(vif),
805 vif->addr);
806 hwsim_check_magic(vif);
807 hwsim_clear_magic(vif);
808 }
809
810
811 static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
812 struct ieee80211_vif *vif)
813 {
814 struct ieee80211_hw *hw = arg;
815 struct sk_buff *skb;
816 struct ieee80211_tx_info *info;
817 u32 _portid;
818
819 hwsim_check_magic(vif);
820
821 if (vif->type != NL80211_IFTYPE_AP &&
822 vif->type != NL80211_IFTYPE_MESH_POINT &&
823 vif->type != NL80211_IFTYPE_ADHOC)
824 return;
825
826 skb = ieee80211_beacon_get(hw, vif);
827 if (skb == NULL)
828 return;
829 info = IEEE80211_SKB_CB(skb);
830
831 mac80211_hwsim_monitor_rx(hw, skb);
832
833 /* wmediumd mode check */
834 _portid = ACCESS_ONCE(wmediumd_portid);
835
836 if (_portid)
837 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
838
839 mac80211_hwsim_tx_frame_no_nl(hw, skb);
840 dev_kfree_skb(skb);
841 }
842
843
844 static void mac80211_hwsim_beacon(unsigned long arg)
845 {
846 struct ieee80211_hw *hw = (struct ieee80211_hw *) arg;
847 struct mac80211_hwsim_data *data = hw->priv;
848
849 if (!data->started)
850 return;
851
852 ieee80211_iterate_active_interfaces_atomic(
853 hw, mac80211_hwsim_beacon_tx, hw);
854
855 data->beacon_timer.expires = jiffies + data->beacon_int;
856 add_timer(&data->beacon_timer);
857 }
858
859 static const char *hwsim_chantypes[] = {
860 [NL80211_CHAN_NO_HT] = "noht",
861 [NL80211_CHAN_HT20] = "ht20",
862 [NL80211_CHAN_HT40MINUS] = "ht40-",
863 [NL80211_CHAN_HT40PLUS] = "ht40+",
864 };
865
866 static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
867 {
868 struct mac80211_hwsim_data *data = hw->priv;
869 struct ieee80211_conf *conf = &hw->conf;
870 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
871 [IEEE80211_SMPS_AUTOMATIC] = "auto",
872 [IEEE80211_SMPS_OFF] = "off",
873 [IEEE80211_SMPS_STATIC] = "static",
874 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
875 };
876
877 wiphy_debug(hw->wiphy,
878 "%s (freq=%d/%s idle=%d ps=%d smps=%s)\n",
879 __func__,
880 conf->channel->center_freq,
881 hwsim_chantypes[conf->channel_type],
882 !!(conf->flags & IEEE80211_CONF_IDLE),
883 !!(conf->flags & IEEE80211_CONF_PS),
884 smps_modes[conf->smps_mode]);
885
886 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
887
888 data->channel = conf->channel;
889 data->power_level = conf->power_level;
890 if (!data->started || !data->beacon_int)
891 del_timer(&data->beacon_timer);
892 else
893 mod_timer(&data->beacon_timer, jiffies + data->beacon_int);
894
895 return 0;
896 }
897
898
899 static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
900 unsigned int changed_flags,
901 unsigned int *total_flags,u64 multicast)
902 {
903 struct mac80211_hwsim_data *data = hw->priv;
904
905 wiphy_debug(hw->wiphy, "%s\n", __func__);
906
907 data->rx_filter = 0;
908 if (*total_flags & FIF_PROMISC_IN_BSS)
909 data->rx_filter |= FIF_PROMISC_IN_BSS;
910 if (*total_flags & FIF_ALLMULTI)
911 data->rx_filter |= FIF_ALLMULTI;
912
913 *total_flags = data->rx_filter;
914 }
915
916 static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
917 struct ieee80211_vif *vif,
918 struct ieee80211_bss_conf *info,
919 u32 changed)
920 {
921 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
922 struct mac80211_hwsim_data *data = hw->priv;
923
924 hwsim_check_magic(vif);
925
926 wiphy_debug(hw->wiphy, "%s(changed=0x%x)\n", __func__, changed);
927
928 if (changed & BSS_CHANGED_BSSID) {
929 wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
930 __func__, info->bssid);
931 memcpy(vp->bssid, info->bssid, ETH_ALEN);
932 }
933
934 if (changed & BSS_CHANGED_ASSOC) {
935 wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
936 info->assoc, info->aid);
937 vp->assoc = info->assoc;
938 vp->aid = info->aid;
939 }
940
941 if (changed & BSS_CHANGED_BEACON_INT) {
942 wiphy_debug(hw->wiphy, " BCNINT: %d\n", info->beacon_int);
943 data->beacon_int = 1024 * info->beacon_int / 1000 * HZ / 1000;
944 if (WARN_ON(!data->beacon_int))
945 data->beacon_int = 1;
946 if (data->started)
947 mod_timer(&data->beacon_timer,
948 jiffies + data->beacon_int);
949 }
950
951 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
952 wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
953 info->use_cts_prot);
954 }
955
956 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
957 wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
958 info->use_short_preamble);
959 }
960
961 if (changed & BSS_CHANGED_ERP_SLOT) {
962 wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
963 }
964
965 if (changed & BSS_CHANGED_HT) {
966 wiphy_debug(hw->wiphy, " HT: op_mode=0x%x, chantype=%s\n",
967 info->ht_operation_mode,
968 hwsim_chantypes[info->channel_type]);
969 }
970
971 if (changed & BSS_CHANGED_BASIC_RATES) {
972 wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
973 (unsigned long long) info->basic_rates);
974 }
975 }
976
977 static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
978 struct ieee80211_vif *vif,
979 struct ieee80211_sta *sta)
980 {
981 hwsim_check_magic(vif);
982 hwsim_set_sta_magic(sta);
983
984 return 0;
985 }
986
987 static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
988 struct ieee80211_vif *vif,
989 struct ieee80211_sta *sta)
990 {
991 hwsim_check_magic(vif);
992 hwsim_clear_sta_magic(sta);
993
994 return 0;
995 }
996
997 static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
998 struct ieee80211_vif *vif,
999 enum sta_notify_cmd cmd,
1000 struct ieee80211_sta *sta)
1001 {
1002 hwsim_check_magic(vif);
1003
1004 switch (cmd) {
1005 case STA_NOTIFY_SLEEP:
1006 case STA_NOTIFY_AWAKE:
1007 /* TODO: make good use of these flags */
1008 break;
1009 default:
1010 WARN(1, "Invalid sta notify: %d\n", cmd);
1011 break;
1012 }
1013 }
1014
1015 static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
1016 struct ieee80211_sta *sta,
1017 bool set)
1018 {
1019 hwsim_check_sta_magic(sta);
1020 return 0;
1021 }
1022
1023 static int mac80211_hwsim_conf_tx(
1024 struct ieee80211_hw *hw,
1025 struct ieee80211_vif *vif, u16 queue,
1026 const struct ieee80211_tx_queue_params *params)
1027 {
1028 wiphy_debug(hw->wiphy,
1029 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1030 __func__, queue,
1031 params->txop, params->cw_min,
1032 params->cw_max, params->aifs);
1033 return 0;
1034 }
1035
1036 static int mac80211_hwsim_get_survey(
1037 struct ieee80211_hw *hw, int idx,
1038 struct survey_info *survey)
1039 {
1040 struct ieee80211_conf *conf = &hw->conf;
1041
1042 wiphy_debug(hw->wiphy, "%s (idx=%d)\n", __func__, idx);
1043
1044 if (idx != 0)
1045 return -ENOENT;
1046
1047 /* Current channel */
1048 survey->channel = conf->channel;
1049
1050 /*
1051 * Magically conjured noise level --- this is only ok for simulated hardware.
1052 *
1053 * A real driver which cannot determine the real channel noise MUST NOT
1054 * report any noise, especially not a magically conjured one :-)
1055 */
1056 survey->filled = SURVEY_INFO_NOISE_DBM;
1057 survey->noise = -92;
1058
1059 return 0;
1060 }
1061
1062 #ifdef CONFIG_NL80211_TESTMODE
1063 /*
1064 * This section contains example code for using netlink
1065 * attributes with the testmode command in nl80211.
1066 */
1067
1068 /* These enums need to be kept in sync with userspace */
1069 enum hwsim_testmode_attr {
1070 __HWSIM_TM_ATTR_INVALID = 0,
1071 HWSIM_TM_ATTR_CMD = 1,
1072 HWSIM_TM_ATTR_PS = 2,
1073
1074 /* keep last */
1075 __HWSIM_TM_ATTR_AFTER_LAST,
1076 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1077 };
1078
1079 enum hwsim_testmode_cmd {
1080 HWSIM_TM_CMD_SET_PS = 0,
1081 HWSIM_TM_CMD_GET_PS = 1,
1082 HWSIM_TM_CMD_STOP_QUEUES = 2,
1083 HWSIM_TM_CMD_WAKE_QUEUES = 3,
1084 };
1085
1086 static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1087 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1088 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1089 };
1090
1091 static int hwsim_fops_ps_write(void *dat, u64 val);
1092
1093 static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
1094 void *data, int len)
1095 {
1096 struct mac80211_hwsim_data *hwsim = hw->priv;
1097 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1098 struct sk_buff *skb;
1099 int err, ps;
1100
1101 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
1102 hwsim_testmode_policy);
1103 if (err)
1104 return err;
1105
1106 if (!tb[HWSIM_TM_ATTR_CMD])
1107 return -EINVAL;
1108
1109 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1110 case HWSIM_TM_CMD_SET_PS:
1111 if (!tb[HWSIM_TM_ATTR_PS])
1112 return -EINVAL;
1113 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1114 return hwsim_fops_ps_write(hwsim, ps);
1115 case HWSIM_TM_CMD_GET_PS:
1116 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1117 nla_total_size(sizeof(u32)));
1118 if (!skb)
1119 return -ENOMEM;
1120 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
1121 goto nla_put_failure;
1122 return cfg80211_testmode_reply(skb);
1123 case HWSIM_TM_CMD_STOP_QUEUES:
1124 ieee80211_stop_queues(hw);
1125 return 0;
1126 case HWSIM_TM_CMD_WAKE_QUEUES:
1127 ieee80211_wake_queues(hw);
1128 return 0;
1129 default:
1130 return -EOPNOTSUPP;
1131 }
1132
1133 nla_put_failure:
1134 kfree_skb(skb);
1135 return -ENOBUFS;
1136 }
1137 #endif
1138
1139 static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1140 struct ieee80211_vif *vif,
1141 enum ieee80211_ampdu_mlme_action action,
1142 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
1143 u8 buf_size)
1144 {
1145 switch (action) {
1146 case IEEE80211_AMPDU_TX_START:
1147 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1148 break;
1149 case IEEE80211_AMPDU_TX_STOP:
1150 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1151 break;
1152 case IEEE80211_AMPDU_TX_OPERATIONAL:
1153 break;
1154 case IEEE80211_AMPDU_RX_START:
1155 case IEEE80211_AMPDU_RX_STOP:
1156 break;
1157 default:
1158 return -EOPNOTSUPP;
1159 }
1160
1161 return 0;
1162 }
1163
1164 static void mac80211_hwsim_flush(struct ieee80211_hw *hw, bool drop)
1165 {
1166 /* Not implemented, queues only on kernel side */
1167 }
1168
1169 struct hw_scan_done {
1170 struct delayed_work w;
1171 struct ieee80211_hw *hw;
1172 };
1173
1174 static void hw_scan_done(struct work_struct *work)
1175 {
1176 struct hw_scan_done *hsd =
1177 container_of(work, struct hw_scan_done, w.work);
1178
1179 ieee80211_scan_completed(hsd->hw, false);
1180 kfree(hsd);
1181 }
1182
1183 static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
1184 struct ieee80211_vif *vif,
1185 struct cfg80211_scan_request *req)
1186 {
1187 struct hw_scan_done *hsd = kzalloc(sizeof(*hsd), GFP_KERNEL);
1188 int i;
1189
1190 if (!hsd)
1191 return -ENOMEM;
1192
1193 hsd->hw = hw;
1194 INIT_DELAYED_WORK(&hsd->w, hw_scan_done);
1195
1196 printk(KERN_DEBUG "hwsim hw_scan request\n");
1197 for (i = 0; i < req->n_channels; i++)
1198 printk(KERN_DEBUG "hwsim hw_scan freq %d\n",
1199 req->channels[i]->center_freq);
1200 print_hex_dump(KERN_DEBUG, "scan IEs: ", DUMP_PREFIX_OFFSET,
1201 16, 1, req->ie, req->ie_len, 1);
1202
1203 ieee80211_queue_delayed_work(hw, &hsd->w, 2 * HZ);
1204
1205 return 0;
1206 }
1207
1208 static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw)
1209 {
1210 struct mac80211_hwsim_data *hwsim = hw->priv;
1211
1212 mutex_lock(&hwsim->mutex);
1213
1214 if (hwsim->scanning) {
1215 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
1216 goto out;
1217 }
1218
1219 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
1220 hwsim->scanning = true;
1221
1222 out:
1223 mutex_unlock(&hwsim->mutex);
1224 }
1225
1226 static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw)
1227 {
1228 struct mac80211_hwsim_data *hwsim = hw->priv;
1229
1230 mutex_lock(&hwsim->mutex);
1231
1232 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
1233 hwsim->scanning = false;
1234
1235 mutex_unlock(&hwsim->mutex);
1236 }
1237
1238 static struct ieee80211_ops mac80211_hwsim_ops =
1239 {
1240 .tx = mac80211_hwsim_tx,
1241 .start = mac80211_hwsim_start,
1242 .stop = mac80211_hwsim_stop,
1243 .add_interface = mac80211_hwsim_add_interface,
1244 .change_interface = mac80211_hwsim_change_interface,
1245 .remove_interface = mac80211_hwsim_remove_interface,
1246 .config = mac80211_hwsim_config,
1247 .configure_filter = mac80211_hwsim_configure_filter,
1248 .bss_info_changed = mac80211_hwsim_bss_info_changed,
1249 .sta_add = mac80211_hwsim_sta_add,
1250 .sta_remove = mac80211_hwsim_sta_remove,
1251 .sta_notify = mac80211_hwsim_sta_notify,
1252 .set_tim = mac80211_hwsim_set_tim,
1253 .conf_tx = mac80211_hwsim_conf_tx,
1254 .get_survey = mac80211_hwsim_get_survey,
1255 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
1256 .ampdu_action = mac80211_hwsim_ampdu_action,
1257 .sw_scan_start = mac80211_hwsim_sw_scan,
1258 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
1259 .flush = mac80211_hwsim_flush,
1260 .get_tsf = mac80211_hwsim_get_tsf,
1261 .set_tsf = mac80211_hwsim_set_tsf,
1262 };
1263
1264
1265 static void mac80211_hwsim_free(void)
1266 {
1267 struct list_head tmplist, *i, *tmp;
1268 struct mac80211_hwsim_data *data, *tmpdata;
1269
1270 INIT_LIST_HEAD(&tmplist);
1271
1272 spin_lock_bh(&hwsim_radio_lock);
1273 list_for_each_safe(i, tmp, &hwsim_radios)
1274 list_move(i, &tmplist);
1275 spin_unlock_bh(&hwsim_radio_lock);
1276
1277 list_for_each_entry_safe(data, tmpdata, &tmplist, list) {
1278 debugfs_remove(data->debugfs_group);
1279 debugfs_remove(data->debugfs_ps);
1280 debugfs_remove(data->debugfs);
1281 ieee80211_unregister_hw(data->hw);
1282 device_unregister(data->dev);
1283 ieee80211_free_hw(data->hw);
1284 }
1285 class_destroy(hwsim_class);
1286 }
1287
1288
1289 static struct device_driver mac80211_hwsim_driver = {
1290 .name = "mac80211_hwsim"
1291 };
1292
1293 static const struct net_device_ops hwsim_netdev_ops = {
1294 .ndo_start_xmit = hwsim_mon_xmit,
1295 .ndo_change_mtu = eth_change_mtu,
1296 .ndo_set_mac_address = eth_mac_addr,
1297 .ndo_validate_addr = eth_validate_addr,
1298 };
1299
1300 static void hwsim_mon_setup(struct net_device *dev)
1301 {
1302 dev->netdev_ops = &hwsim_netdev_ops;
1303 dev->destructor = free_netdev;
1304 ether_setup(dev);
1305 dev->tx_queue_len = 0;
1306 dev->type = ARPHRD_IEEE80211_RADIOTAP;
1307 memset(dev->dev_addr, 0, ETH_ALEN);
1308 dev->dev_addr[0] = 0x12;
1309 }
1310
1311
1312 static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
1313 {
1314 struct mac80211_hwsim_data *data = dat;
1315 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1316 struct sk_buff *skb;
1317 struct ieee80211_pspoll *pspoll;
1318 u32 _portid;
1319
1320 if (!vp->assoc)
1321 return;
1322
1323 wiphy_debug(data->hw->wiphy,
1324 "%s: send PS-Poll to %pM for aid %d\n",
1325 __func__, vp->bssid, vp->aid);
1326
1327 skb = dev_alloc_skb(sizeof(*pspoll));
1328 if (!skb)
1329 return;
1330 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
1331 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
1332 IEEE80211_STYPE_PSPOLL |
1333 IEEE80211_FCTL_PM);
1334 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
1335 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
1336 memcpy(pspoll->ta, mac, ETH_ALEN);
1337
1338 /* wmediumd mode check */
1339 _portid = ACCESS_ONCE(wmediumd_portid);
1340
1341 if (_portid)
1342 return mac80211_hwsim_tx_frame_nl(data->hw, skb, _portid);
1343
1344 if (!mac80211_hwsim_tx_frame_no_nl(data->hw, skb))
1345 printk(KERN_DEBUG "%s: PS-poll frame not ack'ed\n", __func__);
1346 dev_kfree_skb(skb);
1347 }
1348
1349
1350 static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
1351 struct ieee80211_vif *vif, int ps)
1352 {
1353 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1354 struct sk_buff *skb;
1355 struct ieee80211_hdr *hdr;
1356 u32 _portid;
1357
1358 if (!vp->assoc)
1359 return;
1360
1361 wiphy_debug(data->hw->wiphy,
1362 "%s: send data::nullfunc to %pM ps=%d\n",
1363 __func__, vp->bssid, ps);
1364
1365 skb = dev_alloc_skb(sizeof(*hdr));
1366 if (!skb)
1367 return;
1368 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
1369 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1370 IEEE80211_STYPE_NULLFUNC |
1371 (ps ? IEEE80211_FCTL_PM : 0));
1372 hdr->duration_id = cpu_to_le16(0);
1373 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
1374 memcpy(hdr->addr2, mac, ETH_ALEN);
1375 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
1376
1377 /* wmediumd mode check */
1378 _portid = ACCESS_ONCE(wmediumd_portid);
1379
1380 if (_portid)
1381 return mac80211_hwsim_tx_frame_nl(data->hw, skb, _portid);
1382
1383 if (!mac80211_hwsim_tx_frame_no_nl(data->hw, skb))
1384 printk(KERN_DEBUG "%s: nullfunc frame not ack'ed\n", __func__);
1385 dev_kfree_skb(skb);
1386 }
1387
1388
1389 static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
1390 struct ieee80211_vif *vif)
1391 {
1392 struct mac80211_hwsim_data *data = dat;
1393 hwsim_send_nullfunc(data, mac, vif, 1);
1394 }
1395
1396
1397 static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
1398 struct ieee80211_vif *vif)
1399 {
1400 struct mac80211_hwsim_data *data = dat;
1401 hwsim_send_nullfunc(data, mac, vif, 0);
1402 }
1403
1404
1405 static int hwsim_fops_ps_read(void *dat, u64 *val)
1406 {
1407 struct mac80211_hwsim_data *data = dat;
1408 *val = data->ps;
1409 return 0;
1410 }
1411
1412 static int hwsim_fops_ps_write(void *dat, u64 val)
1413 {
1414 struct mac80211_hwsim_data *data = dat;
1415 enum ps_mode old_ps;
1416
1417 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
1418 val != PS_MANUAL_POLL)
1419 return -EINVAL;
1420
1421 old_ps = data->ps;
1422 data->ps = val;
1423
1424 if (val == PS_MANUAL_POLL) {
1425 ieee80211_iterate_active_interfaces(data->hw,
1426 hwsim_send_ps_poll, data);
1427 data->ps_poll_pending = true;
1428 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
1429 ieee80211_iterate_active_interfaces(data->hw,
1430 hwsim_send_nullfunc_ps,
1431 data);
1432 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
1433 ieee80211_iterate_active_interfaces(data->hw,
1434 hwsim_send_nullfunc_no_ps,
1435 data);
1436 }
1437
1438 return 0;
1439 }
1440
1441 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
1442 "%llu\n");
1443
1444
1445 static int hwsim_fops_group_read(void *dat, u64 *val)
1446 {
1447 struct mac80211_hwsim_data *data = dat;
1448 *val = data->group;
1449 return 0;
1450 }
1451
1452 static int hwsim_fops_group_write(void *dat, u64 val)
1453 {
1454 struct mac80211_hwsim_data *data = dat;
1455 data->group = val;
1456 return 0;
1457 }
1458
1459 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
1460 hwsim_fops_group_read, hwsim_fops_group_write,
1461 "%llx\n");
1462
1463 static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(
1464 struct mac_address *addr)
1465 {
1466 struct mac80211_hwsim_data *data;
1467 bool _found = false;
1468
1469 spin_lock_bh(&hwsim_radio_lock);
1470 list_for_each_entry(data, &hwsim_radios, list) {
1471 if (memcmp(data->addresses[1].addr, addr,
1472 sizeof(struct mac_address)) == 0) {
1473 _found = true;
1474 break;
1475 }
1476 }
1477 spin_unlock_bh(&hwsim_radio_lock);
1478
1479 if (!_found)
1480 return NULL;
1481
1482 return data;
1483 }
1484
1485 static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
1486 struct genl_info *info)
1487 {
1488
1489 struct ieee80211_hdr *hdr;
1490 struct mac80211_hwsim_data *data2;
1491 struct ieee80211_tx_info *txi;
1492 struct hwsim_tx_rate *tx_attempts;
1493 unsigned long ret_skb_ptr;
1494 struct sk_buff *skb, *tmp;
1495 struct mac_address *src;
1496 unsigned int hwsim_flags;
1497
1498 int i;
1499 bool found = false;
1500
1501 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
1502 !info->attrs[HWSIM_ATTR_FLAGS] ||
1503 !info->attrs[HWSIM_ATTR_COOKIE] ||
1504 !info->attrs[HWSIM_ATTR_TX_INFO])
1505 goto out;
1506
1507 src = (struct mac_address *)nla_data(
1508 info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
1509 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
1510
1511 ret_skb_ptr = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
1512
1513 data2 = get_hwsim_data_ref_from_addr(src);
1514
1515 if (data2 == NULL)
1516 goto out;
1517
1518 /* look for the skb matching the cookie passed back from user */
1519 skb_queue_walk_safe(&data2->pending, skb, tmp) {
1520 if ((unsigned long)skb == ret_skb_ptr) {
1521 skb_unlink(skb, &data2->pending);
1522 found = true;
1523 break;
1524 }
1525 }
1526
1527 /* not found */
1528 if (!found)
1529 goto out;
1530
1531 /* Tx info received because the frame was broadcasted on user space,
1532 so we get all the necessary info: tx attempts and skb control buff */
1533
1534 tx_attempts = (struct hwsim_tx_rate *)nla_data(
1535 info->attrs[HWSIM_ATTR_TX_INFO]);
1536
1537 /* now send back TX status */
1538 txi = IEEE80211_SKB_CB(skb);
1539
1540 ieee80211_tx_info_clear_status(txi);
1541
1542 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
1543 txi->status.rates[i].idx = tx_attempts[i].idx;
1544 txi->status.rates[i].count = tx_attempts[i].count;
1545 /*txi->status.rates[i].flags = 0;*/
1546 }
1547
1548 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
1549
1550 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
1551 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
1552 if (skb->len >= 16) {
1553 hdr = (struct ieee80211_hdr *) skb->data;
1554 mac80211_hwsim_monitor_ack(data2->hw, hdr->addr2);
1555 }
1556 txi->flags |= IEEE80211_TX_STAT_ACK;
1557 }
1558 ieee80211_tx_status_irqsafe(data2->hw, skb);
1559 return 0;
1560 out:
1561 return -EINVAL;
1562
1563 }
1564
1565 static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
1566 struct genl_info *info)
1567 {
1568
1569 struct mac80211_hwsim_data *data2;
1570 struct ieee80211_rx_status rx_status;
1571 struct mac_address *dst;
1572 int frame_data_len;
1573 char *frame_data;
1574 struct sk_buff *skb = NULL;
1575
1576 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
1577 !info->attrs[HWSIM_ATTR_FRAME] ||
1578 !info->attrs[HWSIM_ATTR_RX_RATE] ||
1579 !info->attrs[HWSIM_ATTR_SIGNAL])
1580 goto out;
1581
1582 dst = (struct mac_address *)nla_data(
1583 info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
1584
1585 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
1586 frame_data = (char *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
1587
1588 /* Allocate new skb here */
1589 skb = alloc_skb(frame_data_len, GFP_KERNEL);
1590 if (skb == NULL)
1591 goto err;
1592
1593 if (frame_data_len <= IEEE80211_MAX_DATA_LEN) {
1594 /* Copy the data */
1595 memcpy(skb_put(skb, frame_data_len), frame_data,
1596 frame_data_len);
1597 } else
1598 goto err;
1599
1600 data2 = get_hwsim_data_ref_from_addr(dst);
1601
1602 if (data2 == NULL)
1603 goto out;
1604
1605 /* check if radio is configured properly */
1606
1607 if (data2->idle || !data2->started || !data2->channel)
1608 goto out;
1609
1610 /*A frame is received from user space*/
1611 memset(&rx_status, 0, sizeof(rx_status));
1612 rx_status.freq = data2->channel->center_freq;
1613 rx_status.band = data2->channel->band;
1614 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
1615 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
1616
1617 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
1618 ieee80211_rx_irqsafe(data2->hw, skb);
1619
1620 return 0;
1621 err:
1622 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
1623 goto out;
1624 out:
1625 dev_kfree_skb(skb);
1626 return -EINVAL;
1627 }
1628
1629 static int hwsim_register_received_nl(struct sk_buff *skb_2,
1630 struct genl_info *info)
1631 {
1632 if (info == NULL)
1633 goto out;
1634
1635 wmediumd_portid = info->snd_portid;
1636
1637 printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
1638 "switching to wmediumd mode with pid %d\n", info->snd_portid);
1639
1640 return 0;
1641 out:
1642 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
1643 return -EINVAL;
1644 }
1645
1646 /* Generic Netlink operations array */
1647 static struct genl_ops hwsim_ops[] = {
1648 {
1649 .cmd = HWSIM_CMD_REGISTER,
1650 .policy = hwsim_genl_policy,
1651 .doit = hwsim_register_received_nl,
1652 .flags = GENL_ADMIN_PERM,
1653 },
1654 {
1655 .cmd = HWSIM_CMD_FRAME,
1656 .policy = hwsim_genl_policy,
1657 .doit = hwsim_cloned_frame_received_nl,
1658 },
1659 {
1660 .cmd = HWSIM_CMD_TX_INFO_FRAME,
1661 .policy = hwsim_genl_policy,
1662 .doit = hwsim_tx_info_frame_received_nl,
1663 },
1664 };
1665
1666 static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
1667 unsigned long state,
1668 void *_notify)
1669 {
1670 struct netlink_notify *notify = _notify;
1671
1672 if (state != NETLINK_URELEASE)
1673 return NOTIFY_DONE;
1674
1675 if (notify->portid == wmediumd_portid) {
1676 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
1677 " socket, switching to perfect channel medium\n");
1678 wmediumd_portid = 0;
1679 }
1680 return NOTIFY_DONE;
1681
1682 }
1683
1684 static struct notifier_block hwsim_netlink_notifier = {
1685 .notifier_call = mac80211_hwsim_netlink_notify,
1686 };
1687
1688 static int hwsim_init_netlink(void)
1689 {
1690 int rc;
1691 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
1692
1693 rc = genl_register_family_with_ops(&hwsim_genl_family,
1694 hwsim_ops, ARRAY_SIZE(hwsim_ops));
1695 if (rc)
1696 goto failure;
1697
1698 rc = netlink_register_notifier(&hwsim_netlink_notifier);
1699 if (rc)
1700 goto failure;
1701
1702 return 0;
1703
1704 failure:
1705 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
1706 return -EINVAL;
1707 }
1708
1709 static void hwsim_exit_netlink(void)
1710 {
1711 int ret;
1712
1713 printk(KERN_INFO "mac80211_hwsim: closing netlink\n");
1714 /* unregister the notifier */
1715 netlink_unregister_notifier(&hwsim_netlink_notifier);
1716 /* unregister the family */
1717 ret = genl_unregister_family(&hwsim_genl_family);
1718 if (ret)
1719 printk(KERN_DEBUG "mac80211_hwsim: "
1720 "unregister family %i\n", ret);
1721 }
1722
1723 static const struct ieee80211_iface_limit hwsim_if_limits[] = {
1724 { .max = 1, .types = BIT(NL80211_IFTYPE_ADHOC) },
1725 { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) |
1726 BIT(NL80211_IFTYPE_P2P_CLIENT) |
1727 #ifdef CONFIG_MAC80211_MESH
1728 BIT(NL80211_IFTYPE_MESH_POINT) |
1729 #endif
1730 BIT(NL80211_IFTYPE_AP) |
1731 BIT(NL80211_IFTYPE_P2P_GO) },
1732 { .max = 1, .types = BIT(NL80211_IFTYPE_P2P_DEVICE) },
1733 };
1734
1735 static const struct ieee80211_iface_combination hwsim_if_comb = {
1736 .limits = hwsim_if_limits,
1737 .n_limits = ARRAY_SIZE(hwsim_if_limits),
1738 .max_interfaces = 2048,
1739 .num_different_channels = 1,
1740 };
1741
1742 static int __init init_mac80211_hwsim(void)
1743 {
1744 int i, err = 0;
1745 u8 addr[ETH_ALEN];
1746 struct mac80211_hwsim_data *data;
1747 struct ieee80211_hw *hw;
1748 enum ieee80211_band band;
1749
1750 if (radios < 1 || radios > 100)
1751 return -EINVAL;
1752
1753 if (fake_hw_scan) {
1754 mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan;
1755 mac80211_hwsim_ops.sw_scan_start = NULL;
1756 mac80211_hwsim_ops.sw_scan_complete = NULL;
1757 }
1758
1759 spin_lock_init(&hwsim_radio_lock);
1760 INIT_LIST_HEAD(&hwsim_radios);
1761
1762 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
1763 if (IS_ERR(hwsim_class))
1764 return PTR_ERR(hwsim_class);
1765
1766 memset(addr, 0, ETH_ALEN);
1767 addr[0] = 0x02;
1768
1769 for (i = 0; i < radios; i++) {
1770 printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
1771 i);
1772 hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);
1773 if (!hw) {
1774 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
1775 "failed\n");
1776 err = -ENOMEM;
1777 goto failed;
1778 }
1779 data = hw->priv;
1780 data->hw = hw;
1781
1782 data->dev = device_create(hwsim_class, NULL, 0, hw,
1783 "hwsim%d", i);
1784 if (IS_ERR(data->dev)) {
1785 printk(KERN_DEBUG
1786 "mac80211_hwsim: device_create "
1787 "failed (%ld)\n", PTR_ERR(data->dev));
1788 err = -ENOMEM;
1789 goto failed_drvdata;
1790 }
1791 data->dev->driver = &mac80211_hwsim_driver;
1792 skb_queue_head_init(&data->pending);
1793
1794 SET_IEEE80211_DEV(hw, data->dev);
1795 addr[3] = i >> 8;
1796 addr[4] = i;
1797 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
1798 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
1799 data->addresses[1].addr[0] |= 0x40;
1800 hw->wiphy->n_addresses = 2;
1801 hw->wiphy->addresses = data->addresses;
1802
1803 hw->wiphy->iface_combinations = &hwsim_if_comb;
1804 hw->wiphy->n_iface_combinations = 1;
1805
1806 if (fake_hw_scan) {
1807 hw->wiphy->max_scan_ssids = 255;
1808 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
1809 }
1810
1811 hw->channel_change_time = 1;
1812 hw->queues = 4;
1813 hw->wiphy->interface_modes =
1814 BIT(NL80211_IFTYPE_STATION) |
1815 BIT(NL80211_IFTYPE_AP) |
1816 BIT(NL80211_IFTYPE_P2P_CLIENT) |
1817 BIT(NL80211_IFTYPE_P2P_GO) |
1818 BIT(NL80211_IFTYPE_ADHOC) |
1819 BIT(NL80211_IFTYPE_MESH_POINT) |
1820 BIT(NL80211_IFTYPE_P2P_DEVICE);
1821
1822 hw->flags = IEEE80211_HW_MFP_CAPABLE |
1823 IEEE80211_HW_SIGNAL_DBM |
1824 IEEE80211_HW_SUPPORTS_STATIC_SMPS |
1825 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
1826 IEEE80211_HW_AMPDU_AGGREGATION |
1827 IEEE80211_HW_WANT_MONITOR_VIF;
1828
1829 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
1830 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
1831
1832 /* ask mac80211 to reserve space for magic */
1833 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
1834 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
1835
1836 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
1837 sizeof(hwsim_channels_2ghz));
1838 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
1839 sizeof(hwsim_channels_5ghz));
1840 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
1841
1842 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
1843 struct ieee80211_supported_band *sband = &data->bands[band];
1844 switch (band) {
1845 case IEEE80211_BAND_2GHZ:
1846 sband->channels = data->channels_2ghz;
1847 sband->n_channels =
1848 ARRAY_SIZE(hwsim_channels_2ghz);
1849 sband->bitrates = data->rates;
1850 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
1851 break;
1852 case IEEE80211_BAND_5GHZ:
1853 sband->channels = data->channels_5ghz;
1854 sband->n_channels =
1855 ARRAY_SIZE(hwsim_channels_5ghz);
1856 sband->bitrates = data->rates + 4;
1857 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
1858 break;
1859 default:
1860 continue;
1861 }
1862
1863 sband->ht_cap.ht_supported = true;
1864 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
1865 IEEE80211_HT_CAP_GRN_FLD |
1866 IEEE80211_HT_CAP_SGI_40 |
1867 IEEE80211_HT_CAP_DSSSCCK40;
1868 sband->ht_cap.ampdu_factor = 0x3;
1869 sband->ht_cap.ampdu_density = 0x6;
1870 memset(&sband->ht_cap.mcs, 0,
1871 sizeof(sband->ht_cap.mcs));
1872 sband->ht_cap.mcs.rx_mask[0] = 0xff;
1873 sband->ht_cap.mcs.rx_mask[1] = 0xff;
1874 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1875
1876 hw->wiphy->bands[band] = sband;
1877 }
1878 /* By default all radios are belonging to the first group */
1879 data->group = 1;
1880 mutex_init(&data->mutex);
1881
1882 /* Enable frame retransmissions for lossy channels */
1883 hw->max_rates = 4;
1884 hw->max_rate_tries = 11;
1885
1886 /* Work to be done prior to ieee80211_register_hw() */
1887 switch (regtest) {
1888 case HWSIM_REGTEST_DISABLED:
1889 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
1890 case HWSIM_REGTEST_DRIVER_REG_ALL:
1891 case HWSIM_REGTEST_DIFF_COUNTRY:
1892 /*
1893 * Nothing to be done for driver regulatory domain
1894 * hints prior to ieee80211_register_hw()
1895 */
1896 break;
1897 case HWSIM_REGTEST_WORLD_ROAM:
1898 if (i == 0) {
1899 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1900 wiphy_apply_custom_regulatory(hw->wiphy,
1901 &hwsim_world_regdom_custom_01);
1902 }
1903 break;
1904 case HWSIM_REGTEST_CUSTOM_WORLD:
1905 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1906 wiphy_apply_custom_regulatory(hw->wiphy,
1907 &hwsim_world_regdom_custom_01);
1908 break;
1909 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1910 if (i == 0) {
1911 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1912 wiphy_apply_custom_regulatory(hw->wiphy,
1913 &hwsim_world_regdom_custom_01);
1914 } else if (i == 1) {
1915 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1916 wiphy_apply_custom_regulatory(hw->wiphy,
1917 &hwsim_world_regdom_custom_02);
1918 }
1919 break;
1920 case HWSIM_REGTEST_STRICT_ALL:
1921 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
1922 break;
1923 case HWSIM_REGTEST_STRICT_FOLLOW:
1924 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1925 if (i == 0)
1926 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
1927 break;
1928 case HWSIM_REGTEST_ALL:
1929 if (i == 0) {
1930 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1931 wiphy_apply_custom_regulatory(hw->wiphy,
1932 &hwsim_world_regdom_custom_01);
1933 } else if (i == 1) {
1934 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1935 wiphy_apply_custom_regulatory(hw->wiphy,
1936 &hwsim_world_regdom_custom_02);
1937 } else if (i == 4)
1938 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
1939 break;
1940 default:
1941 break;
1942 }
1943
1944 /* give the regulatory workqueue a chance to run */
1945 if (regtest)
1946 schedule_timeout_interruptible(1);
1947 err = ieee80211_register_hw(hw);
1948 if (err < 0) {
1949 printk(KERN_DEBUG "mac80211_hwsim: "
1950 "ieee80211_register_hw failed (%d)\n", err);
1951 goto failed_hw;
1952 }
1953
1954 /* Work to be done after to ieee80211_register_hw() */
1955 switch (regtest) {
1956 case HWSIM_REGTEST_WORLD_ROAM:
1957 case HWSIM_REGTEST_DISABLED:
1958 break;
1959 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
1960 if (!i)
1961 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1962 break;
1963 case HWSIM_REGTEST_DRIVER_REG_ALL:
1964 case HWSIM_REGTEST_STRICT_ALL:
1965 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1966 break;
1967 case HWSIM_REGTEST_DIFF_COUNTRY:
1968 if (i < ARRAY_SIZE(hwsim_alpha2s))
1969 regulatory_hint(hw->wiphy, hwsim_alpha2s[i]);
1970 break;
1971 case HWSIM_REGTEST_CUSTOM_WORLD:
1972 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1973 /*
1974 * Nothing to be done for custom world regulatory
1975 * domains after to ieee80211_register_hw
1976 */
1977 break;
1978 case HWSIM_REGTEST_STRICT_FOLLOW:
1979 if (i == 0)
1980 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1981 break;
1982 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1983 if (i == 0)
1984 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1985 else if (i == 1)
1986 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1987 break;
1988 case HWSIM_REGTEST_ALL:
1989 if (i == 2)
1990 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1991 else if (i == 3)
1992 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1993 else if (i == 4)
1994 regulatory_hint(hw->wiphy, hwsim_alpha2s[2]);
1995 break;
1996 default:
1997 break;
1998 }
1999
2000 wiphy_debug(hw->wiphy, "hwaddr %pm registered\n",
2001 hw->wiphy->perm_addr);
2002
2003 data->debugfs = debugfs_create_dir("hwsim",
2004 hw->wiphy->debugfsdir);
2005 data->debugfs_ps = debugfs_create_file("ps", 0666,
2006 data->debugfs, data,
2007 &hwsim_fops_ps);
2008 data->debugfs_group = debugfs_create_file("group", 0666,
2009 data->debugfs, data,
2010 &hwsim_fops_group);
2011
2012 setup_timer(&data->beacon_timer, mac80211_hwsim_beacon,
2013 (unsigned long) hw);
2014
2015 list_add_tail(&data->list, &hwsim_radios);
2016 }
2017
2018 hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
2019 if (hwsim_mon == NULL)
2020 goto failed;
2021
2022 rtnl_lock();
2023
2024 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
2025 if (err < 0)
2026 goto failed_mon;
2027
2028
2029 err = register_netdevice(hwsim_mon);
2030 if (err < 0)
2031 goto failed_mon;
2032
2033 rtnl_unlock();
2034
2035 err = hwsim_init_netlink();
2036 if (err < 0)
2037 goto failed_nl;
2038
2039 return 0;
2040
2041 failed_nl:
2042 printk(KERN_DEBUG "mac_80211_hwsim: failed initializing netlink\n");
2043 return err;
2044
2045 failed_mon:
2046 rtnl_unlock();
2047 free_netdev(hwsim_mon);
2048 mac80211_hwsim_free();
2049 return err;
2050
2051 failed_hw:
2052 device_unregister(data->dev);
2053 failed_drvdata:
2054 ieee80211_free_hw(hw);
2055 failed:
2056 mac80211_hwsim_free();
2057 return err;
2058 }
2059
2060
2061 static void __exit exit_mac80211_hwsim(void)
2062 {
2063 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
2064
2065 hwsim_exit_netlink();
2066
2067 mac80211_hwsim_free();
2068 unregister_netdev(hwsim_mon);
2069 }
2070
2071
2072 module_init(init_mac80211_hwsim);
2073 module_exit(exit_mac80211_hwsim);
kernel source for telekom puls (alcatel/mediatek)