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cfg80211: fix wiphy_register error path
[people/ms/linux.git] / drivers / net / wireless / mac80211_hwsim.c
CommitLineData
acc1e7a3
JM		 1/*
2 * mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211
3 * Copyright (c) 2008, Jouni Malinen <j@w1.fi>
7882513b 4 * Copyright (c) 2011, Javier Lopez <jlopex@gmail.com>
acc1e7a3
JM		 5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10
11/*
12 * TODO:
2b2d7795
JB		 13 * - Add TSF sync and fix IBSS beacon transmission by adding
14 * competition for "air time" at TBTT
acc1e7a3
JM		 15 * - RX filtering based on filter configuration (data->rx_filter)
16 */
17
0e057d73 18#include <linux/list.h>
5a0e3ad6 19#include <linux/slab.h>
0e057d73 20#include <linux/spinlock.h>
90e3012e
JB		 21#include <net/dst.h>
22#include <net/xfrm.h>
acc1e7a3
JM		 23#include <net/mac80211.h>
24#include <net/ieee80211_radiotap.h>
25#include <linux/if_arp.h>
26#include <linux/rtnetlink.h>
27#include <linux/etherdevice.h>
9ea92774 28#include <linux/platform_device.h>
fc6971d4 29#include <linux/debugfs.h>
9d9779e7 30#include <linux/module.h>
2f40b940 31#include <linux/ktime.h>
7882513b
JL		 32#include <net/genetlink.h>
33#include "mac80211_hwsim.h"
34
35#define WARN_QUEUE 100
36#define MAX_QUEUE 200
acc1e7a3
JM		 37
38MODULE_AUTHOR("Jouni Malinen");
39MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
40MODULE_LICENSE("GPL");
41
15e47304 42static u32 wmediumd_portid;
a1910f9c 43
acc1e7a3
JM		 44static int radios = 2;
45module_param(radios, int, 0444);
46MODULE_PARM_DESC(radios, "Number of simulated radios");
47
e8261171
JB		 48static int channels = 1;
49module_param(channels, int, 0444);
50MODULE_PARM_DESC(channels, "Number of concurrent channels");
69068036 51
a357d7f9
JB		 52static bool paged_rx = false;
53module_param(paged_rx, bool, 0644);
54MODULE_PARM_DESC(paged_rx, "Use paged SKBs for RX instead of linear ones");
55
1eb32179
KB		 56static bool rctbl = false;
57module_param(rctbl, bool, 0444);
58MODULE_PARM_DESC(rctbl, "Handle rate control table");
59
4a5af9c2
LR		 60/**
61 * enum hwsim_regtest - the type of regulatory tests we offer
62 *
63 * These are the different values you can use for the regtest
64 * module parameter. This is useful to help test world roaming
65 * and the driver regulatory_hint() call and combinations of these.
66 * If you want to do specific alpha2 regulatory domain tests simply
67 * use the userspace regulatory request as that will be respected as
68 * well without the need of this module parameter. This is designed
69 * only for testing the driver regulatory request, world roaming
70 * and all possible combinations.
71 *
72 * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
73 * this is the default value.
74 * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
75 * hint, only one driver regulatory hint will be sent as such the
76 * secondary radios are expected to follow.
77 * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
78 * request with all radios reporting the same regulatory domain.
79 * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
80 * different regulatory domains requests. Expected behaviour is for
81 * an intersection to occur but each device will still use their
82 * respective regulatory requested domains. Subsequent radios will
83 * use the resulting intersection.
25985edc 84 * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We accomplish
4a5af9c2
LR		 85 * this by using a custom beacon-capable regulatory domain for the first
86 * radio. All other device world roam.
87 * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
88 * domain requests. All radios will adhere to this custom world regulatory
89 * domain.
90 * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
91 * domain requests. The first radio will adhere to the first custom world
92 * regulatory domain, the second one to the second custom world regulatory
93 * domain. All other devices will world roam.
94 * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain
95 * settings, only the first radio will send a regulatory domain request
96 * and use strict settings. The rest of the radios are expected to follow.
97 * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
98 * settings. All radios will adhere to this.
99 * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
100 * domain settings, combined with secondary driver regulatory domain
101 * settings. The first radio will get a strict regulatory domain setting
102 * using the first driver regulatory request and the second radio will use
103 * non-strict settings using the second driver regulatory request. All
104 * other devices should follow the intersection created between the
105 * first two.
106 * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
107 * at least 6 radios for a complete test. We will test in this order:
108 * 1 - driver custom world regulatory domain
109 * 2 - second custom world regulatory domain
110 * 3 - first driver regulatory domain request
111 * 4 - second driver regulatory domain request
112 * 5 - strict regulatory domain settings using the third driver regulatory
113 * domain request
114 * 6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
115 * regulatory requests.
116 */
117enum hwsim_regtest {
118 HWSIM_REGTEST_DISABLED = 0,
119 HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1,
120 HWSIM_REGTEST_DRIVER_REG_ALL = 2,
121 HWSIM_REGTEST_DIFF_COUNTRY = 3,
122 HWSIM_REGTEST_WORLD_ROAM = 4,
123 HWSIM_REGTEST_CUSTOM_WORLD = 5,
124 HWSIM_REGTEST_CUSTOM_WORLD_2 = 6,
125 HWSIM_REGTEST_STRICT_FOLLOW = 7,
126 HWSIM_REGTEST_STRICT_ALL = 8,
127 HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9,
128 HWSIM_REGTEST_ALL = 10,
129};
130
131/* Set to one of the HWSIM_REGTEST_* values above */
132static int regtest = HWSIM_REGTEST_DISABLED;
133module_param(regtest, int, 0444);
134MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run");
135
136static const char *hwsim_alpha2s[] = {
137 "FI",
138 "AL",
139 "US",
140 "DE",
141 "JP",
142 "AL",
143};
144
145static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = {
146 .n_reg_rules = 4,
147 .alpha2 = "99",
148 .reg_rules = {
149 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
150 REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
151 REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
152 REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
153 }
154};
155
156static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = {
157 .n_reg_rules = 2,
158 .alpha2 = "99",
159 .reg_rules = {
160 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
161 REG_RULE(5725-10, 5850+10, 40, 0, 30,
162 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
163 }
164};
165
8aa21e6f
JB		 166struct hwsim_vif_priv {
167 u32 magic;
fc6971d4
JM		 168 u8 bssid[ETH_ALEN];
169 bool assoc;
170 u16 aid;
8aa21e6f
JB		 171};
172
173#define HWSIM_VIF_MAGIC 0x69537748
174
175static inline void hwsim_check_magic(struct ieee80211_vif *vif)
176{
177 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
e8261171
JB		 178 WARN(vp->magic != HWSIM_VIF_MAGIC,
179 "Invalid VIF (%p) magic %#x, %pM, %d/%d\n",
180 vif, vp->magic, vif->addr, vif->type, vif->p2p);
8aa21e6f
JB		 181}
182
183static inline void hwsim_set_magic(struct ieee80211_vif *vif)
184{
185 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
186 vp->magic = HWSIM_VIF_MAGIC;
187}
188
189static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
190{
191 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
192 vp->magic = 0;
193}
acc1e7a3 194
81c06523
JB		 195struct hwsim_sta_priv {
196 u32 magic;
197};
198
e8261171 199#define HWSIM_STA_MAGIC 0x6d537749
81c06523
JB		 200
201static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
202{
203 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
5d6924ea 204 WARN_ON(sp->magic != HWSIM_STA_MAGIC);
81c06523
JB		 205}
206
207static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
208{
209 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
5d6924ea 210 sp->magic = HWSIM_STA_MAGIC;
81c06523
JB		 211}
212
213static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
214{
215 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
216 sp->magic = 0;
217}
218
e8261171
JB		 219struct hwsim_chanctx_priv {
220 u32 magic;
221};
222
223#define HWSIM_CHANCTX_MAGIC 0x6d53774a
224
225static inline void hwsim_check_chanctx_magic(struct ieee80211_chanctx_conf *c)
226{
227 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
228 WARN_ON(cp->magic != HWSIM_CHANCTX_MAGIC);
229}
230
231static inline void hwsim_set_chanctx_magic(struct ieee80211_chanctx_conf *c)
232{
233 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
234 cp->magic = HWSIM_CHANCTX_MAGIC;
235}
236
237static inline void hwsim_clear_chanctx_magic(struct ieee80211_chanctx_conf *c)
238{
239 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
240 cp->magic = 0;
241}
242
acc1e7a3
JM		 243static struct class *hwsim_class;
244
acc1e7a3
JM		 245static struct net_device *hwsim_mon; /* global monitor netdev */
246
22cad735
LR		 247#define CHAN2G(_freq) { \
248 .band = IEEE80211_BAND_2GHZ, \
249 .center_freq = (_freq), \
250 .hw_value = (_freq), \
251 .max_power = 20, \
252}
253
254#define CHAN5G(_freq) { \
255 .band = IEEE80211_BAND_5GHZ, \
256 .center_freq = (_freq), \
257 .hw_value = (_freq), \
258 .max_power = 20, \
259}
260
261static const struct ieee80211_channel hwsim_channels_2ghz[] = {
262 CHAN2G(2412), /* Channel 1 */
263 CHAN2G(2417), /* Channel 2 */
264 CHAN2G(2422), /* Channel 3 */
265 CHAN2G(2427), /* Channel 4 */
266 CHAN2G(2432), /* Channel 5 */
267 CHAN2G(2437), /* Channel 6 */
268 CHAN2G(2442), /* Channel 7 */
269 CHAN2G(2447), /* Channel 8 */
270 CHAN2G(2452), /* Channel 9 */
271 CHAN2G(2457), /* Channel 10 */
272 CHAN2G(2462), /* Channel 11 */
273 CHAN2G(2467), /* Channel 12 */
274 CHAN2G(2472), /* Channel 13 */
275 CHAN2G(2484), /* Channel 14 */
276};
acc1e7a3 277
22cad735
LR		 278static const struct ieee80211_channel hwsim_channels_5ghz[] = {
279 CHAN5G(5180), /* Channel 36 */
280 CHAN5G(5200), /* Channel 40 */
281 CHAN5G(5220), /* Channel 44 */
282 CHAN5G(5240), /* Channel 48 */
283
284 CHAN5G(5260), /* Channel 52 */
285 CHAN5G(5280), /* Channel 56 */
286 CHAN5G(5300), /* Channel 60 */
287 CHAN5G(5320), /* Channel 64 */
288
289 CHAN5G(5500), /* Channel 100 */
290 CHAN5G(5520), /* Channel 104 */
291 CHAN5G(5540), /* Channel 108 */
292 CHAN5G(5560), /* Channel 112 */
293 CHAN5G(5580), /* Channel 116 */
294 CHAN5G(5600), /* Channel 120 */
295 CHAN5G(5620), /* Channel 124 */
296 CHAN5G(5640), /* Channel 128 */
297 CHAN5G(5660), /* Channel 132 */
298 CHAN5G(5680), /* Channel 136 */
299 CHAN5G(5700), /* Channel 140 */
300
301 CHAN5G(5745), /* Channel 149 */
302 CHAN5G(5765), /* Channel 153 */
303 CHAN5G(5785), /* Channel 157 */
304 CHAN5G(5805), /* Channel 161 */
305 CHAN5G(5825), /* Channel 165 */
acc1e7a3
JM		 306};
307
308static const struct ieee80211_rate hwsim_rates[] = {
309 { .bitrate = 10 },
310 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
311 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
312 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
313 { .bitrate = 60 },
314 { .bitrate = 90 },
315 { .bitrate = 120 },
316 { .bitrate = 180 },
317 { .bitrate = 240 },
318 { .bitrate = 360 },
319 { .bitrate = 480 },
320 { .bitrate = 540 }
321};
322
0e057d73
JB		 323static spinlock_t hwsim_radio_lock;
324static struct list_head hwsim_radios;
325
acc1e7a3 326struct mac80211_hwsim_data {
0e057d73
JB		 327 struct list_head list;
328 struct ieee80211_hw *hw;
acc1e7a3 329 struct device *dev;
1b083ea4 330 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
22cad735
LR		 331 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
332 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
acc1e7a3
JM		 333 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
334
ef15aac6
JB		 335 struct mac_address addresses[2];
336
e8261171
JB		 337 struct ieee80211_channel *tmp_chan;
338 struct delayed_work roc_done;
339 struct delayed_work hw_scan;
340 struct cfg80211_scan_request *hw_scan_request;
341 struct ieee80211_vif *hw_scan_vif;
342 int scan_chan_idx;
343
acc1e7a3 344 struct ieee80211_channel *channel;
01e59e46 345 u64 beacon_int /* beacon interval in us */;
acc1e7a3 346 unsigned int rx_filter;
f74cb0f7
LR		 347 bool started, idle, scanning;
348 struct mutex mutex;
01e59e46 349 struct tasklet_hrtimer beacon_timer;
fc6971d4
JM		 350 enum ps_mode {
351 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
352 } ps;
353 bool ps_poll_pending;
354 struct dentry *debugfs;
355 struct dentry *debugfs_ps;
73606d00 356
7882513b 357 struct sk_buff_head pending; /* packets pending */
73606d00
DW		 358 /*
359 * Only radios in the same group can communicate together (the
360 * channel has to match too). Each bit represents a group. A
361 * radio can be in more then one group.
362 */
363 u64 group;
364 struct dentry *debugfs_group;
bdd7bd16
BG		 365
366 int power_level;
2f40b940
JC		 367
368 /* difference between this hw's clock and the real clock, in usecs */
45034bfb 369 s64 tsf_offset;
c51f8783 370 s64 bcn_delta;
b66851c3
TP		 371 /* absolute beacon transmission time. Used to cover up "tx" delay. */
372 u64 abs_bcn_ts;
acc1e7a3
JM		 373};
374
375
376struct hwsim_radiotap_hdr {
377 struct ieee80211_radiotap_header hdr;
2f40b940 378 __le64 rt_tsft;
acc1e7a3
JM		 379 u8 rt_flags;
380 u8 rt_rate;
381 __le16 rt_channel;
382 __le16 rt_chbitmask;
ba2d3587 383} __packed;
acc1e7a3 384
7882513b
JL		 385/* MAC80211_HWSIM netlinf family */
386static struct genl_family hwsim_genl_family = {
387 .id = GENL_ID_GENERATE,
388 .hdrsize = 0,
389 .name = "MAC80211_HWSIM",
390 .version = 1,
391 .maxattr = HWSIM_ATTR_MAX,
392};
393
394/* MAC80211_HWSIM netlink policy */
395
396static struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
397 [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC,
398 .len = 6*sizeof(u8) },
399 [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC,
400 .len = 6*sizeof(u8) },
401 [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
402 .len = IEEE80211_MAX_DATA_LEN },
403 [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
404 [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
405 [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
406 [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC,
407 .len = IEEE80211_TX_MAX_RATES*sizeof(
408 struct hwsim_tx_rate)},
409 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
410};
acc1e7a3 411
d0cf9c0d
SH		 412static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
413 struct net_device *dev)
acc1e7a3
JM		 414{
415 /* TODO: allow packet injection */
416 dev_kfree_skb(skb);
6ed10654 417 return NETDEV_TX_OK;
acc1e7a3
JM		 418}
419
b66851c3
TP		 420static inline u64 mac80211_hwsim_get_tsf_raw(void)
421{
422 return ktime_to_us(ktime_get_real());
423}
424
2f40b940
JC		 425static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
426{
b66851c3 427 u64 now = mac80211_hwsim_get_tsf_raw();
2f40b940
JC		 428 return cpu_to_le64(now + data->tsf_offset);
429}
acc1e7a3 430
12ce8ba3 431static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
b66851c3 432 struct ieee80211_vif *vif)
12ce8ba3
JC		 433{
434 struct mac80211_hwsim_data *data = hw->priv;
435 return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
436}
437
438static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
439 struct ieee80211_vif *vif, u64 tsf)
440{
441 struct mac80211_hwsim_data *data = hw->priv;
45034bfb 442 u64 now = mac80211_hwsim_get_tsf(hw, vif);
c51f8783 443 u32 bcn_int = data->beacon_int;
45034bfb
TP		 444 s64 delta = tsf - now;
445
446 data->tsf_offset += delta;
c51f8783
TP		 447 /* adjust after beaconing with new timestamp at old TBTT */
448 data->bcn_delta = do_div(delta, bcn_int);
12ce8ba3
JC		 449}
450
acc1e7a3 451static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
e8261171
JB		 452 struct sk_buff *tx_skb,
453 struct ieee80211_channel *chan)
acc1e7a3
JM		 454{
455 struct mac80211_hwsim_data *data = hw->priv;
456 struct sk_buff *skb;
457 struct hwsim_radiotap_hdr *hdr;
458 u16 flags;
459 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
460 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
461
462 if (!netif_running(hwsim_mon))
463 return;
464
465 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
466 if (skb == NULL)
467 return;
468
469 hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
470 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
471 hdr->hdr.it_pad = 0;
472 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
f248f105
JM		 473 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
474 (1 << IEEE80211_RADIOTAP_RATE) |
2f40b940 475 (1 << IEEE80211_RADIOTAP_TSFT) |
f248f105 476 (1 << IEEE80211_RADIOTAP_CHANNEL));
2f40b940 477 hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
acc1e7a3
JM		 478 hdr->rt_flags = 0;
479 hdr->rt_rate = txrate->bitrate / 5;
e8261171 480 hdr->rt_channel = cpu_to_le16(chan->center_freq);
acc1e7a3
JM		 481 flags = IEEE80211_CHAN_2GHZ;
482 if (txrate->flags & IEEE80211_RATE_ERP_G)
483 flags |= IEEE80211_CHAN_OFDM;
484 else
485 flags |= IEEE80211_CHAN_CCK;
486 hdr->rt_chbitmask = cpu_to_le16(flags);
487
488 skb->dev = hwsim_mon;
489 skb_set_mac_header(skb, 0);
490 skb->ip_summed = CHECKSUM_UNNECESSARY;
491 skb->pkt_type = PACKET_OTHERHOST;
f248f105 492 skb->protocol = htons(ETH_P_802_2);
acc1e7a3
JM		 493 memset(skb->cb, 0, sizeof(skb->cb));
494 netif_rx(skb);
495}
496
497
e8261171
JB		 498static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
499 const u8 *addr)
6c085227 500{
6c085227
JM		 501 struct sk_buff *skb;
502 struct hwsim_radiotap_hdr *hdr;
503 u16 flags;
504 struct ieee80211_hdr *hdr11;
505
506 if (!netif_running(hwsim_mon))
507 return;
508
509 skb = dev_alloc_skb(100);
510 if (skb == NULL)
511 return;
512
513 hdr = (struct hwsim_radiotap_hdr *) skb_put(skb, sizeof(*hdr));
514 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
515 hdr->hdr.it_pad = 0;
516 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
517 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
518 (1 << IEEE80211_RADIOTAP_CHANNEL));
519 hdr->rt_flags = 0;
520 hdr->rt_rate = 0;
e8261171 521 hdr->rt_channel = cpu_to_le16(chan->center_freq);
6c085227
JM		 522 flags = IEEE80211_CHAN_2GHZ;
523 hdr->rt_chbitmask = cpu_to_le16(flags);
524
525 hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
526 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
527 IEEE80211_STYPE_ACK);
528 hdr11->duration_id = cpu_to_le16(0);
529 memcpy(hdr11->addr1, addr, ETH_ALEN);
530
531 skb->dev = hwsim_mon;
532 skb_set_mac_header(skb, 0);
533 skb->ip_summed = CHECKSUM_UNNECESSARY;
534 skb->pkt_type = PACKET_OTHERHOST;
535 skb->protocol = htons(ETH_P_802_2);
536 memset(skb->cb, 0, sizeof(skb->cb));
537 netif_rx(skb);
538}
539
540
fc6971d4
JM		 541static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
542 struct sk_buff *skb)
543{
544 switch (data->ps) {
545 case PS_DISABLED:
546 return true;
547 case PS_ENABLED:
548 return false;
549 case PS_AUTO_POLL:
550 /* TODO: accept (some) Beacons by default and other frames only
551 * if pending PS-Poll has been sent */
552 return true;
553 case PS_MANUAL_POLL:
554 /* Allow unicast frames to own address if there is a pending
555 * PS-Poll */
556 if (data->ps_poll_pending &&
557 memcmp(data->hw->wiphy->perm_addr, skb->data + 4,
558 ETH_ALEN) == 0) {
559 data->ps_poll_pending = false;
560 return true;
561 }
562 return false;
563 }
564
565 return true;
566}
567
568
265dc7f0
JM		 569struct mac80211_hwsim_addr_match_data {
570 bool ret;
571 const u8 *addr;
572};
573
574static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
575 struct ieee80211_vif *vif)
576{
577 struct mac80211_hwsim_addr_match_data *md = data;
578 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
579 md->ret = true;
580}
581
582
583static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
584 const u8 *addr)
585{
586 struct mac80211_hwsim_addr_match_data md;
587
588 if (memcmp(addr, data->hw->wiphy->perm_addr, ETH_ALEN) == 0)
589 return true;
590
591 md.ret = false;
592 md.addr = addr;
593 ieee80211_iterate_active_interfaces_atomic(data->hw,
8b2c9824 594 IEEE80211_IFACE_ITER_NORMAL,
265dc7f0
JM		 595 mac80211_hwsim_addr_iter,
596 &md);
597
598 return md.ret;
599}
600
7882513b
JL		 601static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
602 struct sk_buff *my_skb,
15e47304 603 int dst_portid)
7882513b
JL		 604{
605 struct sk_buff *skb;
606 struct mac80211_hwsim_data *data = hw->priv;
607 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
608 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
609 void *msg_head;
610 unsigned int hwsim_flags = 0;
611 int i;
612 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
613
7882513b
JL		 614 if (data->ps != PS_DISABLED)
615 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
616 /* If the queue contains MAX_QUEUE skb's drop some */
617 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
618 /* Droping until WARN_QUEUE level */
619 while (skb_queue_len(&data->pending) >= WARN_QUEUE)
620 skb_dequeue(&data->pending);
621 }
622
58050fce 623 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
7882513b
JL		 624 if (skb == NULL)
625 goto nla_put_failure;
626
627 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
628 HWSIM_CMD_FRAME);
629 if (msg_head == NULL) {
630 printk(KERN_DEBUG "mac80211_hwsim: problem with msg_head\n");
631 goto nla_put_failure;
632 }
633
633c9389
DM		 634 if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
635 sizeof(struct mac_address), data->addresses[1].addr))
636 goto nla_put_failure;
265dc7f0 637
7882513b 638 /* We get the skb->data */
633c9389
DM		 639 if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
640 goto nla_put_failure;
7882513b
JL		 641
642 /* We get the flags for this transmission, and we translate them to
643 wmediumd flags */
644
645 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
646 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
647
648 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
649 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
650
633c9389
DM		 651 if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
652 goto nla_put_failure;
7882513b
JL		 653
654 /* We get the tx control (rate and retries) info*/
655
656 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
657 tx_attempts[i].idx = info->status.rates[i].idx;
658 tx_attempts[i].count = info->status.rates[i].count;
659 }
660
633c9389
DM		 661 if (nla_put(skb, HWSIM_ATTR_TX_INFO,
662 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
663 tx_attempts))
664 goto nla_put_failure;
7882513b
JL		 665
666 /* We create a cookie to identify this skb */
633c9389
DM		 667 if (nla_put_u64(skb, HWSIM_ATTR_COOKIE, (unsigned long) my_skb))
668 goto nla_put_failure;
7882513b
JL		 669
670 genlmsg_end(skb, msg_head);
15e47304 671 genlmsg_unicast(&init_net, skb, dst_portid);
7882513b
JL		 672
673 /* Enqueue the packet */
674 skb_queue_tail(&data->pending, my_skb);
675 return;
676
677nla_put_failure:
c393862f 678 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 679}
680
e8261171
JB		 681static bool hwsim_chans_compat(struct ieee80211_channel *c1,
682 struct ieee80211_channel *c2)
683{
684 if (!c1 || !c2)
685 return false;
686
687 return c1->center_freq == c2->center_freq;
688}
689
690struct tx_iter_data {
691 struct ieee80211_channel *channel;
692 bool receive;
693};
694
695static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
696 struct ieee80211_vif *vif)
697{
698 struct tx_iter_data *data = _data;
699
700 if (!vif->chanctx_conf)
701 return;
702
703 if (!hwsim_chans_compat(data->channel,
4bf88530 704 rcu_dereference(vif->chanctx_conf)->def.chan))
e8261171
JB		 705 return;
706
707 data->receive = true;
708}
709
7882513b 710static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
e8261171
JB		 711 struct sk_buff *skb,
712 struct ieee80211_channel *chan)
acc1e7a3 713{
0e057d73
JB		 714 struct mac80211_hwsim_data *data = hw->priv, *data2;
715 bool ack = false;
e36cfdc9 716 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
acc1e7a3 717 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
e36cfdc9 718 struct ieee80211_rx_status rx_status;
b66851c3 719 u64 now;
acc1e7a3
JM		 720
721 memset(&rx_status, 0, sizeof(rx_status));
f4bda337 722 rx_status.flag |= RX_FLAG_MACTIME_START;
e8261171
JB		 723 rx_status.freq = chan->center_freq;
724 rx_status.band = chan->band;
dad6330d
KB		 725 if (info->control.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) {
726 rx_status.rate_idx =
727 ieee80211_rate_get_vht_mcs(&info->control.rates[0]);
728 rx_status.vht_nss =
729 ieee80211_rate_get_vht_nss(&info->control.rates[0]);
730 rx_status.flag |= RX_FLAG_VHT;
731 } else {
732 rx_status.rate_idx = info->control.rates[0].idx;
733 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
734 rx_status.flag |= RX_FLAG_HT;
735 }
281ed297
JM		 736 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
737 rx_status.flag |= RX_FLAG_40MHZ;
738 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
739 rx_status.flag |= RX_FLAG_SHORT_GI;
4b14c96d 740 /* TODO: simulate real signal strength (and optional packet loss) */
bdd7bd16 741 rx_status.signal = data->power_level - 50;
acc1e7a3 742
fc6971d4
JM		 743 if (data->ps != PS_DISABLED)
744 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
745
90e3012e
JB		 746 /* release the skb's source info */
747 skb_orphan(skb);
c0acf38e 748 skb_dst_drop(skb);
90e3012e
JB		 749 skb->mark = 0;
750 secpath_reset(skb);
751 nf_reset(skb);
752
b66851c3
TP		 753 /*
754 * Get absolute mactime here so all HWs RX at the "same time", and
755 * absolute TX time for beacon mactime so the timestamp matches.
756 * Giving beacons a different mactime than non-beacons looks messy, but
757 * it helps the Toffset be exact and a ~10us mactime discrepancy
758 * probably doesn't really matter.
759 */
760 if (ieee80211_is_beacon(hdr->frame_control) ||
761 ieee80211_is_probe_resp(hdr->frame_control))
762 now = data->abs_bcn_ts;
763 else
764 now = mac80211_hwsim_get_tsf_raw();
765
acc1e7a3 766 /* Copy skb to all enabled radios that are on the current frequency */
0e057d73
JB		 767 spin_lock(&hwsim_radio_lock);
768 list_for_each_entry(data2, &hwsim_radios, list) {
acc1e7a3 769 struct sk_buff *nskb;
e8261171
JB		 770 struct tx_iter_data tx_iter_data = {
771 .receive = false,
772 .channel = chan,
773 };
acc1e7a3 774
0e057d73 775 if (data == data2)
acc1e7a3 776 continue;
0e057d73 777
e8261171
JB		 778 if (!data2->started || (data2->idle && !data2->tmp_chan) ||
779 !hwsim_ps_rx_ok(data2, skb))
acc1e7a3
JM		 780 continue;
781
e8261171
JB		 782 if (!(data->group & data2->group))
783 continue;
784
785 if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
786 !hwsim_chans_compat(chan, data2->channel)) {
787 ieee80211_iterate_active_interfaces_atomic(
8b2c9824
JB		 788 data2->hw, IEEE80211_IFACE_ITER_NORMAL,
789 mac80211_hwsim_tx_iter, &tx_iter_data);
e8261171
JB		 790 if (!tx_iter_data.receive)
791 continue;
792 }
793
90b9e446
JB		 794 /*
795 * reserve some space for our vendor and the normal
796 * radiotap header, since we're copying anyway
797 */
a357d7f9
JB		 798 if (skb->len < PAGE_SIZE && paged_rx) {
799 struct page *page = alloc_page(GFP_ATOMIC);
800
801 if (!page)
802 continue;
803
804 nskb = dev_alloc_skb(128);
805 if (!nskb) {
806 __free_page(page);
807 continue;
808 }
809
810 memcpy(page_address(page), skb->data, skb->len);
811 skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
812 } else {
813 nskb = skb_copy(skb, GFP_ATOMIC);
814 if (!nskb)
815 continue;
816 }
acc1e7a3 817
265dc7f0 818 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
0e057d73 819 ack = true;
f483ad25 820
b66851c3 821 rx_status.mactime = now + data2->tsf_offset;
90b9e446
JB		 822#if 0
823 /*
824 * Don't enable this code by default as the OUI 00:00:00
825 * is registered to Xerox so we shouldn't use it here, it
826 * might find its way into pcap files.
827 * Note that this code requires the headroom in the SKB
828 * that was allocated earlier.
829 */
830 rx_status.vendor_radiotap_oui[0] = 0x00;
831 rx_status.vendor_radiotap_oui[1] = 0x00;
832 rx_status.vendor_radiotap_oui[2] = 0x00;
833 rx_status.vendor_radiotap_subns = 127;
834 /*
835 * Radiotap vendor namespaces can (and should) also be
836 * split into fields by using the standard radiotap
837 * presence bitmap mechanism. Use just BIT(0) here for
838 * the presence bitmap.
839 */
840 rx_status.vendor_radiotap_bitmap = BIT(0);
841 /* We have 8 bytes of (dummy) data */
842 rx_status.vendor_radiotap_len = 8;
843 /* For testing, also require it to be aligned */
844 rx_status.vendor_radiotap_align = 8;
845 /* push the data */
846 memcpy(skb_push(nskb, 8), "ABCDEFGH", 8);
847#endif
848
f1d58c25
JB		 849 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
850 ieee80211_rx_irqsafe(data2->hw, nskb);
acc1e7a3 851 }
0e057d73 852 spin_unlock(&hwsim_radio_lock);
acc1e7a3 853
e36cfdc9
JM		 854 return ack;
855}
856
36323f81
TH		 857static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
858 struct ieee80211_tx_control *control,
859 struct sk_buff *skb)
e36cfdc9 860{
e8261171
JB		 861 struct mac80211_hwsim_data *data = hw->priv;
862 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
863 struct ieee80211_chanctx_conf *chanctx_conf;
864 struct ieee80211_channel *channel;
0e057d73 865 bool ack;
15e47304 866 u32 _portid;
e36cfdc9 867
e8261171 868 if (WARN_ON(skb->len < 10)) {
e36cfdc9
JM		 869 /* Should not happen; just a sanity check for addr1 use */
870 dev_kfree_skb(skb);
7bb45683 871 return;
e36cfdc9
JM		 872 }
873
e8261171
JB		 874 if (channels == 1) {
875 channel = data->channel;
876 } else if (txi->hw_queue == 4) {
877 channel = data->tmp_chan;
878 } else {
879 chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf);
880 if (chanctx_conf)
4bf88530 881 channel = chanctx_conf->def.chan;
e8261171
JB		 882 else
883 channel = NULL;
884 }
885
886 if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
887 dev_kfree_skb(skb);
888 return;
889 }
890
891 if (data->idle && !data->tmp_chan) {
892 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
893 dev_kfree_skb(skb);
894 return;
895 }
896
897 if (txi->control.vif)
898 hwsim_check_magic(txi->control.vif);
899 if (control->sta)
900 hwsim_check_sta_magic(control->sta);
901
1eb32179
KB		 902 if (rctbl)
903 ieee80211_get_tx_rates(txi->control.vif, control->sta, skb,
904 txi->control.rates,
905 ARRAY_SIZE(txi->control.rates));
e8261171 906
1eb32179 907 txi->rate_driver_data[0] = channel;
e8261171
JB		 908 mac80211_hwsim_monitor_rx(hw, skb, channel);
909
7882513b 910 /* wmediumd mode check */
15e47304 911 _portid = ACCESS_ONCE(wmediumd_portid);
7882513b 912
15e47304
EB		 913 if (_portid)
914 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
7882513b
JL		 915
916 /* NO wmediumd detected, perfect medium simulation */
e8261171 917 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
7882513b 918
6c085227
JM		 919 if (ack && skb->len >= 16) {
920 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
e8261171 921 mac80211_hwsim_monitor_ack(channel, hdr->addr2);
6c085227 922 }
e36cfdc9 923
e6a9854b 924 ieee80211_tx_info_clear_status(txi);
2a4ffa4c
JC		 925
926 /* frame was transmitted at most favorable rate at first attempt */
927 txi->control.rates[0].count = 1;
928 txi->control.rates[1].idx = -1;
929
e6a9854b
JB		 930 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
931 txi->flags |= IEEE80211_TX_STAT_ACK;
acc1e7a3 932 ieee80211_tx_status_irqsafe(hw, skb);
acc1e7a3
JM		 933}
934
935
936static int mac80211_hwsim_start(struct ieee80211_hw *hw)
937{
938 struct mac80211_hwsim_data *data = hw->priv;
c96c31e4 939 wiphy_debug(hw->wiphy, "%s\n", __func__);
3db1cd5c 940 data->started = true;
acc1e7a3
JM		 941 return 0;
942}
943
944
945static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
946{
947 struct mac80211_hwsim_data *data = hw->priv;
3db1cd5c 948 data->started = false;
01e59e46 949 tasklet_hrtimer_cancel(&data->beacon_timer);
c96c31e4 950 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 951}
952
953
954static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
1ed32e4f 955 struct ieee80211_vif *vif)
acc1e7a3 956{
c96c31e4 957 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 958 __func__, ieee80211_vif_type_p2p(vif),
959 vif->addr);
1ed32e4f 960 hwsim_set_magic(vif);
e8261171
JB		 961
962 vif->cab_queue = 0;
963 vif->hw_queue[IEEE80211_AC_VO] = 0;
964 vif->hw_queue[IEEE80211_AC_VI] = 1;
965 vif->hw_queue[IEEE80211_AC_BE] = 2;
966 vif->hw_queue[IEEE80211_AC_BK] = 3;
967
acc1e7a3
JM		 968 return 0;
969}
970
971
c35d0270
JB		 972static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
973 struct ieee80211_vif *vif,
2ca27bcf
JB		 974 enum nl80211_iftype newtype,
975 bool newp2p)
c35d0270 976{
2ca27bcf 977 newtype = ieee80211_iftype_p2p(newtype, newp2p);
c35d0270
JB		 978 wiphy_debug(hw->wiphy,
979 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
2ca27bcf
JB		 980 __func__, ieee80211_vif_type_p2p(vif),
981 newtype, vif->addr);
c35d0270
JB		 982 hwsim_check_magic(vif);
983
3eb92f6a
JB		 984 /*
985 * interface may change from non-AP to AP in
986 * which case this needs to be set up again
987 */
988 vif->cab_queue = 0;
989
c35d0270
JB		 990 return 0;
991}
992
acc1e7a3 993static void mac80211_hwsim_remove_interface(
1ed32e4f 994 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
acc1e7a3 995{
c96c31e4 996 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 997 __func__, ieee80211_vif_type_p2p(vif),
998 vif->addr);
1ed32e4f
JB		 999 hwsim_check_magic(vif);
1000 hwsim_clear_magic(vif);
acc1e7a3
JM		 1001}
1002
e8261171
JB		 1003static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
1004 struct sk_buff *skb,
1005 struct ieee80211_channel *chan)
1006{
1007 u32 _pid = ACCESS_ONCE(wmediumd_portid);
1008
1eb32179
KB		 1009 if (rctbl) {
1010 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1011 ieee80211_get_tx_rates(txi->control.vif, NULL, skb,
1012 txi->control.rates,
1013 ARRAY_SIZE(txi->control.rates));
1014 }
1015
e8261171
JB		 1016 mac80211_hwsim_monitor_rx(hw, skb, chan);
1017
1018 if (_pid)
1019 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
1020
1021 mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
1022 dev_kfree_skb(skb);
1023}
acc1e7a3
JM		 1024
1025static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
1026 struct ieee80211_vif *vif)
1027{
b66851c3
TP		 1028 struct mac80211_hwsim_data *data = arg;
1029 struct ieee80211_hw *hw = data->hw;
1030 struct ieee80211_tx_info *info;
1031 struct ieee80211_rate *txrate;
1032 struct ieee80211_mgmt *mgmt;
acc1e7a3 1033 struct sk_buff *skb;
acc1e7a3 1034
8aa21e6f
JB		 1035 hwsim_check_magic(vif);
1036
55b39619 1037 if (vif->type != NL80211_IFTYPE_AP &&
2b2d7795
JB		 1038 vif->type != NL80211_IFTYPE_MESH_POINT &&
1039 vif->type != NL80211_IFTYPE_ADHOC)
acc1e7a3
JM		 1040 return;
1041
1042 skb = ieee80211_beacon_get(hw, vif);
1043 if (skb == NULL)
1044 return;
b66851c3 1045 info = IEEE80211_SKB_CB(skb);
1eb32179
KB		 1046 if (rctbl)
1047 ieee80211_get_tx_rates(vif, NULL, skb,
1048 info->control.rates,
1049 ARRAY_SIZE(info->control.rates));
1050
b66851c3
TP		 1051 txrate = ieee80211_get_tx_rate(hw, info);
1052
1053 mgmt = (struct ieee80211_mgmt *) skb->data;
1054 /* fake header transmission time */
1055 data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
1056 mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
1057 data->tsf_offset +
1058 24 * 8 * 10 / txrate->bitrate);
7882513b 1059
e8261171 1060 mac80211_hwsim_tx_frame(hw, skb,
4bf88530 1061 rcu_dereference(vif->chanctx_conf)->def.chan);
acc1e7a3
JM		 1062}
1063
01e59e46
TP		 1064static enum hrtimer_restart
1065mac80211_hwsim_beacon(struct hrtimer *timer)
acc1e7a3 1066{
01e59e46
TP		 1067 struct mac80211_hwsim_data *data =
1068 container_of(timer, struct mac80211_hwsim_data,
1069 beacon_timer.timer);
1070 struct ieee80211_hw *hw = data->hw;
1071 u64 bcn_int = data->beacon_int;
1072 ktime_t next_bcn;
acc1e7a3 1073
4c4c671a 1074 if (!data->started)
01e59e46 1075 goto out;
acc1e7a3 1076
f248f105 1077 ieee80211_iterate_active_interfaces_atomic(
8b2c9824 1078 hw, IEEE80211_IFACE_ITER_NORMAL,
b66851c3 1079 mac80211_hwsim_beacon_tx, data);
acc1e7a3 1080
c51f8783
TP		 1081 /* beacon at new TBTT + beacon interval */
1082 if (data->bcn_delta) {
1083 bcn_int -= data->bcn_delta;
1084 data->bcn_delta = 0;
1085 }
1086
01e59e46
TP		 1087 next_bcn = ktime_add(hrtimer_get_expires(timer),
1088 ns_to_ktime(bcn_int * 1000));
1089 tasklet_hrtimer_start(&data->beacon_timer, next_bcn, HRTIMER_MODE_ABS);
1090out:
1091 return HRTIMER_NORESTART;
acc1e7a3
JM		 1092}
1093
675a0b04
KB		 1094static const char * const hwsim_chanwidths[] = {
1095 [NL80211_CHAN_WIDTH_20_NOHT] = "noht",
1096 [NL80211_CHAN_WIDTH_20] = "ht20",
1097 [NL80211_CHAN_WIDTH_40] = "ht40",
1098 [NL80211_CHAN_WIDTH_80] = "vht80",
1099 [NL80211_CHAN_WIDTH_80P80] = "vht80p80",
1100 [NL80211_CHAN_WIDTH_160] = "vht160",
0aaffa9b 1101};
acc1e7a3 1102
e8975581 1103static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
acc1e7a3
JM		 1104{
1105 struct mac80211_hwsim_data *data = hw->priv;
e8975581 1106 struct ieee80211_conf *conf = &hw->conf;
0f78231b
JB		 1107 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
1108 [IEEE80211_SMPS_AUTOMATIC] = "auto",
1109 [IEEE80211_SMPS_OFF] = "off",
1110 [IEEE80211_SMPS_STATIC] = "static",
1111 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
1112 };
1113
675a0b04
KB		 1114 if (conf->chandef.chan)
1115 wiphy_debug(hw->wiphy,
1116 "%s (freq=%d(%d - %d)/%s idle=%d ps=%d smps=%s)\n",
1117 __func__,
1118 conf->chandef.chan->center_freq,
1119 conf->chandef.center_freq1,
1120 conf->chandef.center_freq2,
1121 hwsim_chanwidths[conf->chandef.width],
1122 !!(conf->flags & IEEE80211_CONF_IDLE),
1123 !!(conf->flags & IEEE80211_CONF_PS),
1124 smps_modes[conf->smps_mode]);
1125 else
1126 wiphy_debug(hw->wiphy,
1127 "%s (freq=0 idle=%d ps=%d smps=%s)\n",
1128 __func__,
1129 !!(conf->flags & IEEE80211_CONF_IDLE),
1130 !!(conf->flags & IEEE80211_CONF_PS),
1131 smps_modes[conf->smps_mode]);
acc1e7a3 1132
70541839
JM		 1133 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1134
675a0b04 1135 data->channel = conf->chandef.chan;
e8261171
JB		 1136
1137 WARN_ON(data->channel && channels > 1);
1138
bdd7bd16 1139 data->power_level = conf->power_level;
4c4c671a 1140 if (!data->started || !data->beacon_int)
01e59e46
TP		 1141 tasklet_hrtimer_cancel(&data->beacon_timer);
1142 else if (!hrtimer_is_queued(&data->beacon_timer.timer)) {
c51f8783
TP		 1143 u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
1144 u32 bcn_int = data->beacon_int;
1145 u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1146
01e59e46 1147 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1148 ns_to_ktime(until_tbtt * 1000),
01e59e46
TP		 1149 HRTIMER_MODE_REL);
1150 }
acc1e7a3
JM		 1151
1152 return 0;
1153}
1154
1155
1156static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
1157 unsigned int changed_flags,
3ac64bee 1158 unsigned int *total_flags,u64 multicast)
acc1e7a3
JM		 1159{
1160 struct mac80211_hwsim_data *data = hw->priv;
1161
c96c31e4 1162 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 1163
1164 data->rx_filter = 0;
1165 if (*total_flags & FIF_PROMISC_IN_BSS)
1166 data->rx_filter |= FIF_PROMISC_IN_BSS;
1167 if (*total_flags & FIF_ALLMULTI)
1168 data->rx_filter |= FIF_ALLMULTI;
1169
1170 *total_flags = data->rx_filter;
1171}
1172
8aa21e6f
JB		 1173static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
1174 struct ieee80211_vif *vif,
1175 struct ieee80211_bss_conf *info,
1176 u32 changed)
1177{
fc6971d4 1178 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
57c4d7b4 1179 struct mac80211_hwsim_data *data = hw->priv;
fc6971d4 1180
8aa21e6f 1181 hwsim_check_magic(vif);
fe63bfa3 1182
c96c31e4 1183 wiphy_debug(hw->wiphy, "%s(changed=0x%x)\n", __func__, changed);
fe63bfa3 1184
2d0ddec5 1185 if (changed & BSS_CHANGED_BSSID) {
c96c31e4
JP		 1186 wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
1187 __func__, info->bssid);
2d0ddec5
JB		 1188 memcpy(vp->bssid, info->bssid, ETH_ALEN);
1189 }
1190
fe63bfa3 1191 if (changed & BSS_CHANGED_ASSOC) {
c96c31e4
JP		 1192 wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
1193 info->assoc, info->aid);
fc6971d4
JM		 1194 vp->assoc = info->assoc;
1195 vp->aid = info->aid;
fe63bfa3
JM		 1196 }
1197
57c4d7b4 1198 if (changed & BSS_CHANGED_BEACON_INT) {
c96c31e4 1199 wiphy_debug(hw->wiphy, " BCNINT: %d\n", info->beacon_int);
01e59e46
TP		 1200 data->beacon_int = info->beacon_int * 1024;
1201 }
1202
1203 if (changed & BSS_CHANGED_BEACON_ENABLED) {
1204 wiphy_debug(hw->wiphy, " BCN EN: %d\n", info->enable_beacon);
1205 if (data->started &&
1206 !hrtimer_is_queued(&data->beacon_timer.timer) &&
1207 info->enable_beacon) {
c51f8783
TP		 1208 u64 tsf, until_tbtt;
1209 u32 bcn_int;
01e59e46
TP		 1210 if (WARN_ON(!data->beacon_int))
1211 data->beacon_int = 1000 * 1024;
c51f8783
TP		 1212 tsf = mac80211_hwsim_get_tsf(hw, vif);
1213 bcn_int = data->beacon_int;
1214 until_tbtt = bcn_int - do_div(tsf, bcn_int);
01e59e46 1215 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1216 ns_to_ktime(until_tbtt * 1000),
01e59e46
TP		 1217 HRTIMER_MODE_REL);
1218 } else if (!info->enable_beacon)
1219 tasklet_hrtimer_cancel(&data->beacon_timer);
57c4d7b4
JB		 1220 }
1221
fe63bfa3 1222 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
c96c31e4
JP		 1223 wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
1224 info->use_cts_prot);
fe63bfa3
JM		 1225 }
1226
1227 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
c96c31e4
JP		 1228 wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
1229 info->use_short_preamble);
fe63bfa3
JM		 1230 }
1231
1232 if (changed & BSS_CHANGED_ERP_SLOT) {
c96c31e4 1233 wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
fe63bfa3
JM		 1234 }
1235
1236 if (changed & BSS_CHANGED_HT) {
4bf88530
JB		 1237 wiphy_debug(hw->wiphy, " HT: op_mode=0x%x\n",
1238 info->ht_operation_mode);
fe63bfa3
JM		 1239 }
1240
1241 if (changed & BSS_CHANGED_BASIC_RATES) {
c96c31e4
JP		 1242 wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
1243 (unsigned long long) info->basic_rates);
fe63bfa3 1244 }
cbc668a7
JB		 1245
1246 if (changed & BSS_CHANGED_TXPOWER)
1247 wiphy_debug(hw->wiphy, " TX Power: %d dBm\n", info->txpower);
8aa21e6f
JB		 1248}
1249
1d669cbf
JB		 1250static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
1251 struct ieee80211_vif *vif,
1252 struct ieee80211_sta *sta)
1253{
1254 hwsim_check_magic(vif);
1255 hwsim_set_sta_magic(sta);
1256
1257 return 0;
1258}
1259
1260static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
1261 struct ieee80211_vif *vif,
1262 struct ieee80211_sta *sta)
1263{
1264 hwsim_check_magic(vif);
1265 hwsim_clear_sta_magic(sta);
1266
1267 return 0;
1268}
1269
8aa21e6f
JB		 1270static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
1271 struct ieee80211_vif *vif,
17741cdc
JB		 1272 enum sta_notify_cmd cmd,
1273 struct ieee80211_sta *sta)
8aa21e6f
JB		 1274{
1275 hwsim_check_magic(vif);
1d669cbf 1276
81c06523 1277 switch (cmd) {
89fad578
CL		 1278 case STA_NOTIFY_SLEEP:
1279 case STA_NOTIFY_AWAKE:
1280 /* TODO: make good use of these flags */
1281 break;
1d669cbf
JB		 1282 default:
1283 WARN(1, "Invalid sta notify: %d\n", cmd);
1284 break;
81c06523
JB		 1285 }
1286}
1287
1288static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
1289 struct ieee80211_sta *sta,
1290 bool set)
1291{
1292 hwsim_check_sta_magic(sta);
1293 return 0;
8aa21e6f 1294}
acc1e7a3 1295
1e898ff8 1296static int mac80211_hwsim_conf_tx(
8a3a3c85
EP		 1297 struct ieee80211_hw *hw,
1298 struct ieee80211_vif *vif, u16 queue,
1e898ff8
JM		 1299 const struct ieee80211_tx_queue_params *params)
1300{
c96c31e4
JP		 1301 wiphy_debug(hw->wiphy,
1302 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1303 __func__, queue,
1304 params->txop, params->cw_min,
1305 params->cw_max, params->aifs);
1e898ff8
JM		 1306 return 0;
1307}
1308
1289723e
HS		 1309static int mac80211_hwsim_get_survey(
1310 struct ieee80211_hw *hw, int idx,
1311 struct survey_info *survey)
1312{
1313 struct ieee80211_conf *conf = &hw->conf;
1314
c96c31e4 1315 wiphy_debug(hw->wiphy, "%s (idx=%d)\n", __func__, idx);
1289723e
HS		 1316
1317 if (idx != 0)
1318 return -ENOENT;
1319
1320 /* Current channel */
675a0b04 1321 survey->channel = conf->chandef.chan;
1289723e
HS		 1322
1323 /*
1324 * Magically conjured noise level --- this is only ok for simulated hardware.
1325 *
1326 * A real driver which cannot determine the real channel noise MUST NOT
1327 * report any noise, especially not a magically conjured one :-)
1328 */
1329 survey->filled = SURVEY_INFO_NOISE_DBM;
1330 survey->noise = -92;
1331
1332 return 0;
1333}
1334
aff89a9b
JB		 1335#ifdef CONFIG_NL80211_TESTMODE
1336/*
1337 * This section contains example code for using netlink
1338 * attributes with the testmode command in nl80211.
1339 */
1340
1341/* These enums need to be kept in sync with userspace */
1342enum hwsim_testmode_attr {
1343 __HWSIM_TM_ATTR_INVALID = 0,
1344 HWSIM_TM_ATTR_CMD = 1,
1345 HWSIM_TM_ATTR_PS = 2,
1346
1347 /* keep last */
1348 __HWSIM_TM_ATTR_AFTER_LAST,
1349 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1350};
1351
1352enum hwsim_testmode_cmd {
1353 HWSIM_TM_CMD_SET_PS = 0,
1354 HWSIM_TM_CMD_GET_PS = 1,
4d6d0ae2
JB		 1355 HWSIM_TM_CMD_STOP_QUEUES = 2,
1356 HWSIM_TM_CMD_WAKE_QUEUES = 3,
aff89a9b
JB		 1357};
1358
1359static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1360 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1361 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1362};
1363
1364static int hwsim_fops_ps_write(void *dat, u64 val);
1365
5bc38193
JB		 1366static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
1367 void *data, int len)
aff89a9b
JB		 1368{
1369 struct mac80211_hwsim_data *hwsim = hw->priv;
1370 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1371 struct sk_buff *skb;
1372 int err, ps;
1373
1374 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
1375 hwsim_testmode_policy);
1376 if (err)
1377 return err;
1378
1379 if (!tb[HWSIM_TM_ATTR_CMD])
1380 return -EINVAL;
1381
1382 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1383 case HWSIM_TM_CMD_SET_PS:
1384 if (!tb[HWSIM_TM_ATTR_PS])
1385 return -EINVAL;
1386 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1387 return hwsim_fops_ps_write(hwsim, ps);
1388 case HWSIM_TM_CMD_GET_PS:
1389 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1390 nla_total_size(sizeof(u32)));
1391 if (!skb)
1392 return -ENOMEM;
633c9389
DM		 1393 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
1394 goto nla_put_failure;
aff89a9b 1395 return cfg80211_testmode_reply(skb);
4d6d0ae2
JB		 1396 case HWSIM_TM_CMD_STOP_QUEUES:
1397 ieee80211_stop_queues(hw);
1398 return 0;
1399 case HWSIM_TM_CMD_WAKE_QUEUES:
1400 ieee80211_wake_queues(hw);
1401 return 0;
aff89a9b
JB		 1402 default:
1403 return -EOPNOTSUPP;
1404 }
1405
1406 nla_put_failure:
1407 kfree_skb(skb);
1408 return -ENOBUFS;
1409}
1410#endif
1411
8b73d13a
JB		 1412static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1413 struct ieee80211_vif *vif,
1414 enum ieee80211_ampdu_mlme_action action,
0b01f030
JB		 1415 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
1416 u8 buf_size)
8b73d13a
JB		 1417{
1418 switch (action) {
1419 case IEEE80211_AMPDU_TX_START:
1420 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1421 break;
18b559d5
JB		 1422 case IEEE80211_AMPDU_TX_STOP_CONT:
1423 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1424 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
8b73d13a
JB		 1425 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1426 break;
1427 case IEEE80211_AMPDU_TX_OPERATIONAL:
1428 break;
1429 case IEEE80211_AMPDU_RX_START:
1430 case IEEE80211_AMPDU_RX_STOP:
1431 break;
1432 default:
1433 return -EOPNOTSUPP;
1434 }
1435
1436 return 0;
1437}
1438
39ecc01d 1439static void mac80211_hwsim_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
a80f7c0b 1440{
7882513b 1441 /* Not implemented, queues only on kernel side */
a80f7c0b
JB		 1442}
1443
e8261171 1444static void hw_scan_work(struct work_struct *work)
69068036 1445{
e8261171
JB		 1446 struct mac80211_hwsim_data *hwsim =
1447 container_of(work, struct mac80211_hwsim_data, hw_scan.work);
1448 struct cfg80211_scan_request *req = hwsim->hw_scan_request;
1449 int dwell, i;
69068036 1450
e8261171
JB		 1451 mutex_lock(&hwsim->mutex);
1452 if (hwsim->scan_chan_idx >= req->n_channels) {
1453 wiphy_debug(hwsim->hw->wiphy, "hw scan complete\n");
1454 ieee80211_scan_completed(hwsim->hw, false);
1455 hwsim->hw_scan_request = NULL;
1456 hwsim->hw_scan_vif = NULL;
1457 hwsim->tmp_chan = NULL;
1458 mutex_unlock(&hwsim->mutex);
1459 return;
1460 }
1461
1462 wiphy_debug(hwsim->hw->wiphy, "hw scan %d MHz\n",
1463 req->channels[hwsim->scan_chan_idx]->center_freq);
1464
1465 hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
1466 if (hwsim->tmp_chan->flags & IEEE80211_CHAN_PASSIVE_SCAN ||
1467 !req->n_ssids) {
1468 dwell = 120;
1469 } else {
1470 dwell = 30;
1471 /* send probes */
1472 for (i = 0; i < req->n_ssids; i++) {
1473 struct sk_buff *probe;
1474
1475 probe = ieee80211_probereq_get(hwsim->hw,
1476 hwsim->hw_scan_vif,
1477 req->ssids[i].ssid,
1478 req->ssids[i].ssid_len,
b9a9ada1 1479 req->ie_len);
e8261171
JB		 1480 if (!probe)
1481 continue;
b9a9ada1
JB		 1482
1483 if (req->ie_len)
1484 memcpy(skb_put(probe, req->ie_len), req->ie,
1485 req->ie_len);
1486
e8261171
JB		 1487 local_bh_disable();
1488 mac80211_hwsim_tx_frame(hwsim->hw, probe,
1489 hwsim->tmp_chan);
1490 local_bh_enable();
1491 }
1492 }
1493 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
1494 msecs_to_jiffies(dwell));
1495 hwsim->scan_chan_idx++;
1496 mutex_unlock(&hwsim->mutex);
69068036
JB		 1497}
1498
1499static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
a060bbfe 1500 struct ieee80211_vif *vif,
69068036
JB		 1501 struct cfg80211_scan_request *req)
1502{
e8261171 1503 struct mac80211_hwsim_data *hwsim = hw->priv;
69068036 1504
e8261171
JB		 1505 mutex_lock(&hwsim->mutex);
1506 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1507 mutex_unlock(&hwsim->mutex);
1508 return -EBUSY;
1509 }
1510 hwsim->hw_scan_request = req;
1511 hwsim->hw_scan_vif = vif;
1512 hwsim->scan_chan_idx = 0;
1513 mutex_unlock(&hwsim->mutex);
69068036 1514
e8261171 1515 wiphy_debug(hw->wiphy, "hwsim hw_scan request\n");
69068036 1516
e8261171 1517 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
69068036
JB		 1518
1519 return 0;
1520}
1521
e8261171
JB		 1522static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
1523 struct ieee80211_vif *vif)
1524{
1525 struct mac80211_hwsim_data *hwsim = hw->priv;
1526
1527 wiphy_debug(hw->wiphy, "hwsim cancel_hw_scan\n");
1528
1529 cancel_delayed_work_sync(&hwsim->hw_scan);
1530
1531 mutex_lock(&hwsim->mutex);
1532 ieee80211_scan_completed(hwsim->hw, true);
1533 hwsim->tmp_chan = NULL;
1534 hwsim->hw_scan_request = NULL;
1535 hwsim->hw_scan_vif = NULL;
1536 mutex_unlock(&hwsim->mutex);
1537}
1538
f74cb0f7
LR		 1539static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw)
1540{
1541 struct mac80211_hwsim_data *hwsim = hw->priv;
1542
1543 mutex_lock(&hwsim->mutex);
1544
1545 if (hwsim->scanning) {
1546 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
1547 goto out;
1548 }
1549
1550 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
1551 hwsim->scanning = true;
1552
1553out:
1554 mutex_unlock(&hwsim->mutex);
1555}
1556
1557static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw)
1558{
1559 struct mac80211_hwsim_data *hwsim = hw->priv;
1560
1561 mutex_lock(&hwsim->mutex);
1562
1563 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
23ff98fc 1564 hwsim->scanning = false;
f74cb0f7
LR		 1565
1566 mutex_unlock(&hwsim->mutex);
1567}
1568
e8261171
JB		 1569static void hw_roc_done(struct work_struct *work)
1570{
1571 struct mac80211_hwsim_data *hwsim =
1572 container_of(work, struct mac80211_hwsim_data, roc_done.work);
1573
1574 mutex_lock(&hwsim->mutex);
1575 ieee80211_remain_on_channel_expired(hwsim->hw);
1576 hwsim->tmp_chan = NULL;
1577 mutex_unlock(&hwsim->mutex);
1578
1579 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC expired\n");
1580}
1581
1582static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
49884568 1583 struct ieee80211_vif *vif,
e8261171 1584 struct ieee80211_channel *chan,
d339d5ca
IP		 1585 int duration,
1586 enum ieee80211_roc_type type)
e8261171
JB		 1587{
1588 struct mac80211_hwsim_data *hwsim = hw->priv;
1589
1590 mutex_lock(&hwsim->mutex);
1591 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1592 mutex_unlock(&hwsim->mutex);
1593 return -EBUSY;
1594 }
1595
1596 hwsim->tmp_chan = chan;
1597 mutex_unlock(&hwsim->mutex);
1598
1599 wiphy_debug(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
1600 chan->center_freq, duration);
1601
1602 ieee80211_ready_on_channel(hw);
1603
1604 ieee80211_queue_delayed_work(hw, &hwsim->roc_done,
1605 msecs_to_jiffies(duration));
1606 return 0;
1607}
1608
1609static int mac80211_hwsim_croc(struct ieee80211_hw *hw)
1610{
1611 struct mac80211_hwsim_data *hwsim = hw->priv;
1612
1613 cancel_delayed_work_sync(&hwsim->roc_done);
1614
1615 mutex_lock(&hwsim->mutex);
1616 hwsim->tmp_chan = NULL;
1617 mutex_unlock(&hwsim->mutex);
1618
1619 wiphy_debug(hw->wiphy, "hwsim ROC canceled\n");
1620
1621 return 0;
1622}
1623
1624static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
1625 struct ieee80211_chanctx_conf *ctx)
1626{
1627 hwsim_set_chanctx_magic(ctx);
4bf88530
JB		 1628 wiphy_debug(hw->wiphy,
1629 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1630 ctx->def.chan->center_freq, ctx->def.width,
1631 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1632 return 0;
1633}
1634
1635static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
1636 struct ieee80211_chanctx_conf *ctx)
1637{
4bf88530
JB		 1638 wiphy_debug(hw->wiphy,
1639 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1640 ctx->def.chan->center_freq, ctx->def.width,
1641 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1642 hwsim_check_chanctx_magic(ctx);
1643 hwsim_clear_chanctx_magic(ctx);
1644}
1645
1646static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
1647 struct ieee80211_chanctx_conf *ctx,
1648 u32 changed)
1649{
1650 hwsim_check_chanctx_magic(ctx);
4bf88530
JB		 1651 wiphy_debug(hw->wiphy,
1652 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1653 ctx->def.chan->center_freq, ctx->def.width,
1654 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1655}
1656
1657static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
1658 struct ieee80211_vif *vif,
1659 struct ieee80211_chanctx_conf *ctx)
1660{
1661 hwsim_check_magic(vif);
1662 hwsim_check_chanctx_magic(ctx);
1663
1664 return 0;
1665}
1666
1667static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
1668 struct ieee80211_vif *vif,
1669 struct ieee80211_chanctx_conf *ctx)
1670{
1671 hwsim_check_magic(vif);
1672 hwsim_check_chanctx_magic(ctx);
1673}
1674
69068036 1675static struct ieee80211_ops mac80211_hwsim_ops =
acc1e7a3
JM		 1676{
1677 .tx = mac80211_hwsim_tx,
1678 .start = mac80211_hwsim_start,
1679 .stop = mac80211_hwsim_stop,
1680 .add_interface = mac80211_hwsim_add_interface,
c35d0270 1681 .change_interface = mac80211_hwsim_change_interface,
acc1e7a3
JM		 1682 .remove_interface = mac80211_hwsim_remove_interface,
1683 .config = mac80211_hwsim_config,
1684 .configure_filter = mac80211_hwsim_configure_filter,
8aa21e6f 1685 .bss_info_changed = mac80211_hwsim_bss_info_changed,
1d669cbf
JB		 1686 .sta_add = mac80211_hwsim_sta_add,
1687 .sta_remove = mac80211_hwsim_sta_remove,
8aa21e6f 1688 .sta_notify = mac80211_hwsim_sta_notify,
81c06523 1689 .set_tim = mac80211_hwsim_set_tim,
1e898ff8 1690 .conf_tx = mac80211_hwsim_conf_tx,
1289723e 1691 .get_survey = mac80211_hwsim_get_survey,
aff89a9b 1692 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
8b73d13a 1693 .ampdu_action = mac80211_hwsim_ampdu_action,
f74cb0f7
LR		 1694 .sw_scan_start = mac80211_hwsim_sw_scan,
1695 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
a80f7c0b 1696 .flush = mac80211_hwsim_flush,
12ce8ba3
JC		 1697 .get_tsf = mac80211_hwsim_get_tsf,
1698 .set_tsf = mac80211_hwsim_set_tsf,
acc1e7a3
JM		 1699};
1700
1701
1702static void mac80211_hwsim_free(void)
1703{
0e057d73 1704 struct list_head tmplist, *i, *tmp;
e603d9d8 1705 struct mac80211_hwsim_data *data, *tmpdata;
0e057d73
JB		 1706
1707 INIT_LIST_HEAD(&tmplist);
1708
1709 spin_lock_bh(&hwsim_radio_lock);
1710 list_for_each_safe(i, tmp, &hwsim_radios)
1711 list_move(i, &tmplist);
1712 spin_unlock_bh(&hwsim_radio_lock);
1713
e603d9d8 1714 list_for_each_entry_safe(data, tmpdata, &tmplist, list) {
73606d00 1715 debugfs_remove(data->debugfs_group);
fc6971d4
JM		 1716 debugfs_remove(data->debugfs_ps);
1717 debugfs_remove(data->debugfs);
0e057d73 1718 ieee80211_unregister_hw(data->hw);
9ea92774 1719 device_release_driver(data->dev);
0e057d73
JB		 1720 device_unregister(data->dev);
1721 ieee80211_free_hw(data->hw);
acc1e7a3 1722 }
acc1e7a3
JM		 1723 class_destroy(hwsim_class);
1724}
1725
1726
1727static struct device_driver mac80211_hwsim_driver = {
9ea92774
MP		 1728 .name = "mac80211_hwsim",
1729 .bus = &platform_bus_type,
1730 .owner = THIS_MODULE,
acc1e7a3
JM		 1731};
1732
98d2faae
SH		 1733static const struct net_device_ops hwsim_netdev_ops = {
1734 .ndo_start_xmit = hwsim_mon_xmit,
1735 .ndo_change_mtu = eth_change_mtu,
1736 .ndo_set_mac_address = eth_mac_addr,
1737 .ndo_validate_addr = eth_validate_addr,
1738};
acc1e7a3
JM		 1739
1740static void hwsim_mon_setup(struct net_device *dev)
1741{
98d2faae 1742 dev->netdev_ops = &hwsim_netdev_ops;
acc1e7a3
JM		 1743 dev->destructor = free_netdev;
1744 ether_setup(dev);
1745 dev->tx_queue_len = 0;
1746 dev->type = ARPHRD_IEEE80211_RADIOTAP;
1747 memset(dev->dev_addr, 0, ETH_ALEN);
1748 dev->dev_addr[0] = 0x12;
1749}
1750
1751
fc6971d4
JM		 1752static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
1753{
1754 struct mac80211_hwsim_data *data = dat;
1755 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
fc6971d4
JM		 1756 struct sk_buff *skb;
1757 struct ieee80211_pspoll *pspoll;
1758
1759 if (!vp->assoc)
1760 return;
1761
c96c31e4
JP		 1762 wiphy_debug(data->hw->wiphy,
1763 "%s: send PS-Poll to %pM for aid %d\n",
1764 __func__, vp->bssid, vp->aid);
fc6971d4
JM		 1765
1766 skb = dev_alloc_skb(sizeof(*pspoll));
1767 if (!skb)
1768 return;
1769 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
1770 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
1771 IEEE80211_STYPE_PSPOLL |
1772 IEEE80211_FCTL_PM);
1773 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
1774 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
1775 memcpy(pspoll->ta, mac, ETH_ALEN);
7882513b 1776
e8261171
JB		 1777 rcu_read_lock();
1778 mac80211_hwsim_tx_frame(data->hw, skb,
4bf88530 1779 rcu_dereference(vif->chanctx_conf)->def.chan);
e8261171 1780 rcu_read_unlock();
fc6971d4
JM		 1781}
1782
fc6971d4
JM		 1783static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
1784 struct ieee80211_vif *vif, int ps)
1785{
1786 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
fc6971d4
JM		 1787 struct sk_buff *skb;
1788 struct ieee80211_hdr *hdr;
1789
1790 if (!vp->assoc)
1791 return;
1792
c96c31e4
JP		 1793 wiphy_debug(data->hw->wiphy,
1794 "%s: send data::nullfunc to %pM ps=%d\n",
1795 __func__, vp->bssid, ps);
fc6971d4
JM		 1796
1797 skb = dev_alloc_skb(sizeof(*hdr));
1798 if (!skb)
1799 return;
1800 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
1801 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1802 IEEE80211_STYPE_NULLFUNC |
1803 (ps ? IEEE80211_FCTL_PM : 0));
1804 hdr->duration_id = cpu_to_le16(0);
1805 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
1806 memcpy(hdr->addr2, mac, ETH_ALEN);
1807 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
7882513b 1808
e8261171
JB		 1809 rcu_read_lock();
1810 mac80211_hwsim_tx_frame(data->hw, skb,
4bf88530 1811 rcu_dereference(vif->chanctx_conf)->def.chan);
e8261171 1812 rcu_read_unlock();
fc6971d4
JM		 1813}
1814
1815
1816static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
1817 struct ieee80211_vif *vif)
1818{
1819 struct mac80211_hwsim_data *data = dat;
1820 hwsim_send_nullfunc(data, mac, vif, 1);
1821}
1822
1823
1824static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
1825 struct ieee80211_vif *vif)
1826{
1827 struct mac80211_hwsim_data *data = dat;
1828 hwsim_send_nullfunc(data, mac, vif, 0);
1829}
1830
1831
1832static int hwsim_fops_ps_read(void *dat, u64 *val)
1833{
1834 struct mac80211_hwsim_data *data = dat;
1835 *val = data->ps;
1836 return 0;
1837}
1838
1839static int hwsim_fops_ps_write(void *dat, u64 val)
1840{
1841 struct mac80211_hwsim_data *data = dat;
1842 enum ps_mode old_ps;
1843
1844 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
1845 val != PS_MANUAL_POLL)
1846 return -EINVAL;
1847
1848 old_ps = data->ps;
1849 data->ps = val;
1850
1851 if (val == PS_MANUAL_POLL) {
1852 ieee80211_iterate_active_interfaces(data->hw,
8b2c9824 1853 IEEE80211_IFACE_ITER_NORMAL,
fc6971d4
JM		 1854 hwsim_send_ps_poll, data);
1855 data->ps_poll_pending = true;
1856 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
1857 ieee80211_iterate_active_interfaces(data->hw,
8b2c9824 1858 IEEE80211_IFACE_ITER_NORMAL,
fc6971d4
JM		 1859 hwsim_send_nullfunc_ps,
1860 data);
1861 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
1862 ieee80211_iterate_active_interfaces(data->hw,
8b2c9824 1863 IEEE80211_IFACE_ITER_NORMAL,
fc6971d4
JM		 1864 hwsim_send_nullfunc_no_ps,
1865 data);
1866 }
1867
1868 return 0;
1869}
1870
1871DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
1872 "%llu\n");
1873
1874
73606d00
DW		 1875static int hwsim_fops_group_read(void *dat, u64 *val)
1876{
1877 struct mac80211_hwsim_data *data = dat;
1878 *val = data->group;
1879 return 0;
1880}
1881
1882static int hwsim_fops_group_write(void *dat, u64 val)
1883{
1884 struct mac80211_hwsim_data *data = dat;
1885 data->group = val;
1886 return 0;
1887}
1888
1889DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
1890 hwsim_fops_group_read, hwsim_fops_group_write,
1891 "%llx\n");
1892
f483ad25 1893static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(
7882513b
JL		 1894 struct mac_address *addr)
1895{
1896 struct mac80211_hwsim_data *data;
1897 bool _found = false;
1898
1899 spin_lock_bh(&hwsim_radio_lock);
1900 list_for_each_entry(data, &hwsim_radios, list) {
1901 if (memcmp(data->addresses[1].addr, addr,
1902 sizeof(struct mac_address)) == 0) {
1903 _found = true;
1904 break;
1905 }
1906 }
1907 spin_unlock_bh(&hwsim_radio_lock);
1908
1909 if (!_found)
1910 return NULL;
1911
1912 return data;
1913}
1914
1915static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
1916 struct genl_info *info)
1917{
1918
1919 struct ieee80211_hdr *hdr;
1920 struct mac80211_hwsim_data *data2;
1921 struct ieee80211_tx_info *txi;
1922 struct hwsim_tx_rate *tx_attempts;
d0f718c1 1923 unsigned long ret_skb_ptr;
7882513b
JL		 1924 struct sk_buff *skb, *tmp;
1925 struct mac_address *src;
1926 unsigned int hwsim_flags;
1927
1928 int i;
1929 bool found = false;
1930
1931 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
1932 !info->attrs[HWSIM_ATTR_FLAGS] ||
1933 !info->attrs[HWSIM_ATTR_COOKIE] ||
1934 !info->attrs[HWSIM_ATTR_TX_INFO])
1935 goto out;
1936
1937 src = (struct mac_address *)nla_data(
1938 info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
1939 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
1940
d0f718c1 1941 ret_skb_ptr = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
7882513b
JL		 1942
1943 data2 = get_hwsim_data_ref_from_addr(src);
1944
1945 if (data2 == NULL)
1946 goto out;
1947
1948 /* look for the skb matching the cookie passed back from user */
1949 skb_queue_walk_safe(&data2->pending, skb, tmp) {
d0f718c1 1950 if ((unsigned long)skb == ret_skb_ptr) {
7882513b
JL		 1951 skb_unlink(skb, &data2->pending);
1952 found = true;
1953 break;
1954 }
1955 }
1956
1957 /* not found */
1958 if (!found)
1959 goto out;
1960
1961 /* Tx info received because the frame was broadcasted on user space,
1962 so we get all the necessary info: tx attempts and skb control buff */
1963
1964 tx_attempts = (struct hwsim_tx_rate *)nla_data(
1965 info->attrs[HWSIM_ATTR_TX_INFO]);
1966
1967 /* now send back TX status */
1968 txi = IEEE80211_SKB_CB(skb);
1969
7882513b
JL		 1970 ieee80211_tx_info_clear_status(txi);
1971
1972 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
1973 txi->status.rates[i].idx = tx_attempts[i].idx;
1974 txi->status.rates[i].count = tx_attempts[i].count;
1975 /*txi->status.rates[i].flags = 0;*/
1976 }
1977
1978 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
1979
1980 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
1981 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
1982 if (skb->len >= 16) {
1983 hdr = (struct ieee80211_hdr *) skb->data;
e8261171
JB		 1984 mac80211_hwsim_monitor_ack(txi->rate_driver_data[0],
1985 hdr->addr2);
7882513b 1986 }
06cf5c4c 1987 txi->flags |= IEEE80211_TX_STAT_ACK;
7882513b
JL		 1988 }
1989 ieee80211_tx_status_irqsafe(data2->hw, skb);
1990 return 0;
1991out:
1992 return -EINVAL;
1993
1994}
1995
1996static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
1997 struct genl_info *info)
1998{
1999
e8261171 2000 struct mac80211_hwsim_data *data2;
7882513b
JL		 2001 struct ieee80211_rx_status rx_status;
2002 struct mac_address *dst;
2003 int frame_data_len;
2004 char *frame_data;
2005 struct sk_buff *skb = NULL;
2006
2007 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
e8261171
JB		 2008 !info->attrs[HWSIM_ATTR_FRAME] ||
2009 !info->attrs[HWSIM_ATTR_RX_RATE] ||
2010 !info->attrs[HWSIM_ATTR_SIGNAL])
7882513b
JL		 2011 goto out;
2012
2013 dst = (struct mac_address *)nla_data(
2014 info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
2015
2016 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
2017 frame_data = (char *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
2018
2019 /* Allocate new skb here */
2020 skb = alloc_skb(frame_data_len, GFP_KERNEL);
2021 if (skb == NULL)
2022 goto err;
2023
2024 if (frame_data_len <= IEEE80211_MAX_DATA_LEN) {
2025 /* Copy the data */
2026 memcpy(skb_put(skb, frame_data_len), frame_data,
2027 frame_data_len);
2028 } else
2029 goto err;
2030
2031 data2 = get_hwsim_data_ref_from_addr(dst);
2032
2033 if (data2 == NULL)
2034 goto out;
2035
2036 /* check if radio is configured properly */
2037
e8261171 2038 if (data2->idle || !data2->started)
7882513b
JL		 2039 goto out;
2040
2041 /*A frame is received from user space*/
2042 memset(&rx_status, 0, sizeof(rx_status));
2043 rx_status.freq = data2->channel->center_freq;
2044 rx_status.band = data2->channel->band;
2045 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
2046 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
2047
2048 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
2049 ieee80211_rx_irqsafe(data2->hw, skb);
2050
2051 return 0;
2052err:
c393862f 2053 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 2054 goto out;
2055out:
2056 dev_kfree_skb(skb);
2057 return -EINVAL;
2058}
2059
2060static int hwsim_register_received_nl(struct sk_buff *skb_2,
2061 struct genl_info *info)
2062{
2063 if (info == NULL)
2064 goto out;
2065
15e47304 2066 wmediumd_portid = info->snd_portid;
7882513b
JL		 2067
2068 printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
15e47304 2069 "switching to wmediumd mode with pid %d\n", info->snd_portid);
7882513b
JL		 2070
2071 return 0;
2072out:
c393862f 2073 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 2074 return -EINVAL;
2075}
2076
2077/* Generic Netlink operations array */
2078static struct genl_ops hwsim_ops[] = {
2079 {
2080 .cmd = HWSIM_CMD_REGISTER,
2081 .policy = hwsim_genl_policy,
2082 .doit = hwsim_register_received_nl,
2083 .flags = GENL_ADMIN_PERM,
2084 },
2085 {
2086 .cmd = HWSIM_CMD_FRAME,
2087 .policy = hwsim_genl_policy,
2088 .doit = hwsim_cloned_frame_received_nl,
2089 },
2090 {
2091 .cmd = HWSIM_CMD_TX_INFO_FRAME,
2092 .policy = hwsim_genl_policy,
2093 .doit = hwsim_tx_info_frame_received_nl,
2094 },
2095};
2096
2097static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
2098 unsigned long state,
2099 void *_notify)
2100{
2101 struct netlink_notify *notify = _notify;
2102
2103 if (state != NETLINK_URELEASE)
2104 return NOTIFY_DONE;
2105
15e47304 2106 if (notify->portid == wmediumd_portid) {
7882513b
JL		 2107 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
2108 " socket, switching to perfect channel medium\n");
15e47304 2109 wmediumd_portid = 0;
7882513b
JL		 2110 }
2111 return NOTIFY_DONE;
2112
2113}
2114
2115static struct notifier_block hwsim_netlink_notifier = {
2116 .notifier_call = mac80211_hwsim_netlink_notify,
2117};
2118
2119static int hwsim_init_netlink(void)
2120{
2121 int rc;
e8261171
JB		 2122
2123 /* userspace test API hasn't been adjusted for multi-channel */
2124 if (channels > 1)
2125 return 0;
2126
7882513b
JL		 2127 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
2128
7882513b
JL		 2129 rc = genl_register_family_with_ops(&hwsim_genl_family,
2130 hwsim_ops, ARRAY_SIZE(hwsim_ops));
2131 if (rc)
2132 goto failure;
2133
2134 rc = netlink_register_notifier(&hwsim_netlink_notifier);
2135 if (rc)
2136 goto failure;
2137
2138 return 0;
2139
2140failure:
c393862f 2141 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 2142 return -EINVAL;
2143}
2144
2145static void hwsim_exit_netlink(void)
2146{
2147 int ret;
2148
e8261171
JB		 2149 /* userspace test API hasn't been adjusted for multi-channel */
2150 if (channels > 1)
2151 return;
2152
7882513b
JL		 2153 printk(KERN_INFO "mac80211_hwsim: closing netlink\n");
2154 /* unregister the notifier */
2155 netlink_unregister_notifier(&hwsim_netlink_notifier);
2156 /* unregister the family */
2157 ret = genl_unregister_family(&hwsim_genl_family);
2158 if (ret)
2159 printk(KERN_DEBUG "mac80211_hwsim: "
2160 "unregister family %i\n", ret);
2161}
2162
1ae2fc25
JB		 2163static const struct ieee80211_iface_limit hwsim_if_limits[] = {
2164 { .max = 1, .types = BIT(NL80211_IFTYPE_ADHOC) },
2165 { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) |
2166 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2167#ifdef CONFIG_MAC80211_MESH
2168 BIT(NL80211_IFTYPE_MESH_POINT) |
2169#endif
2170 BIT(NL80211_IFTYPE_AP) |
2171 BIT(NL80211_IFTYPE_P2P_GO) },
8b3d1cc2 2172 { .max = 1, .types = BIT(NL80211_IFTYPE_P2P_DEVICE) },
1ae2fc25
JB		 2173};
2174
e8261171 2175static struct ieee80211_iface_combination hwsim_if_comb = {
1ae2fc25
JB		 2176 .limits = hwsim_if_limits,
2177 .n_limits = ARRAY_SIZE(hwsim_if_limits),
2178 .max_interfaces = 2048,
2179 .num_different_channels = 1,
2180};
2181
acc1e7a3
JM		 2182static int __init init_mac80211_hwsim(void)
2183{
2184 int i, err = 0;
2185 u8 addr[ETH_ALEN];
2186 struct mac80211_hwsim_data *data;
2187 struct ieee80211_hw *hw;
22cad735 2188 enum ieee80211_band band;
acc1e7a3 2189
0e057d73 2190 if (radios < 1 || radios > 100)
acc1e7a3
JM		 2191 return -EINVAL;
2192
e8261171
JB		 2193 if (channels < 1)
2194 return -EINVAL;
2195
2196 if (channels > 1) {
2197 hwsim_if_comb.num_different_channels = channels;
69068036 2198 mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan;
e8261171
JB		 2199 mac80211_hwsim_ops.cancel_hw_scan =
2200 mac80211_hwsim_cancel_hw_scan;
f74cb0f7
LR		 2201 mac80211_hwsim_ops.sw_scan_start = NULL;
2202 mac80211_hwsim_ops.sw_scan_complete = NULL;
e8261171
JB		 2203 mac80211_hwsim_ops.remain_on_channel =
2204 mac80211_hwsim_roc;
2205 mac80211_hwsim_ops.cancel_remain_on_channel =
2206 mac80211_hwsim_croc;
2207 mac80211_hwsim_ops.add_chanctx =
2208 mac80211_hwsim_add_chanctx;
2209 mac80211_hwsim_ops.remove_chanctx =
2210 mac80211_hwsim_remove_chanctx;
2211 mac80211_hwsim_ops.change_chanctx =
2212 mac80211_hwsim_change_chanctx;
2213 mac80211_hwsim_ops.assign_vif_chanctx =
2214 mac80211_hwsim_assign_vif_chanctx;
2215 mac80211_hwsim_ops.unassign_vif_chanctx =
2216 mac80211_hwsim_unassign_vif_chanctx;
f74cb0f7 2217 }
69068036 2218
0e057d73
JB		 2219 spin_lock_init(&hwsim_radio_lock);
2220 INIT_LIST_HEAD(&hwsim_radios);
acc1e7a3 2221
9ea92774
MP		 2222 err = driver_register(&mac80211_hwsim_driver);
2223 if (err)
2224 return err;
2225
acc1e7a3 2226 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
9ea92774
MP		 2227 if (IS_ERR(hwsim_class)) {
2228 err = PTR_ERR(hwsim_class);
2229 goto failed_unregister_driver;
2230 }
acc1e7a3
JM		 2231
2232 memset(addr, 0, ETH_ALEN);
2233 addr[0] = 0x02;
2234
0e057d73 2235 for (i = 0; i < radios; i++) {
acc1e7a3
JM		 2236 printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
2237 i);
2238 hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);
0e057d73 2239 if (!hw) {
acc1e7a3
JM		 2240 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
2241 "failed\n");
2242 err = -ENOMEM;
2243 goto failed;
2244 }
acc1e7a3 2245 data = hw->priv;
0e057d73
JB		 2246 data->hw = hw;
2247
6e05d6c4
GKH		 2248 data->dev = device_create(hwsim_class, NULL, 0, hw,
2249 "hwsim%d", i);
acc1e7a3 2250 if (IS_ERR(data->dev)) {
e800f17c 2251 printk(KERN_DEBUG
9ea92774
MP		 2252 "mac80211_hwsim: device_create failed (%ld)\n",
2253 PTR_ERR(data->dev));
acc1e7a3 2254 err = -ENOMEM;
3a33cc10 2255 goto failed_drvdata;
acc1e7a3
JM		 2256 }
2257 data->dev->driver = &mac80211_hwsim_driver;
9ea92774
MP		 2258 err = device_bind_driver(data->dev);
2259 if (err != 0) {
2260 printk(KERN_DEBUG
2261 "mac80211_hwsim: device_bind_driver failed (%d)\n",
2262 err);
2263 goto failed_hw;
2264 }
2265
7882513b 2266 skb_queue_head_init(&data->pending);
acc1e7a3
JM		 2267
2268 SET_IEEE80211_DEV(hw, data->dev);
2269 addr[3] = i >> 8;
2270 addr[4] = i;
ef15aac6
JB		 2271 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
2272 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
2273 data->addresses[1].addr[0] |= 0x40;
2274 hw->wiphy->n_addresses = 2;
2275 hw->wiphy->addresses = data->addresses;
acc1e7a3 2276
1ae2fc25
JB		 2277 hw->wiphy->iface_combinations = &hwsim_if_comb;
2278 hw->wiphy->n_iface_combinations = 1;
2279
e8261171 2280 if (channels > 1) {
8223d2f5
JB		 2281 hw->wiphy->max_scan_ssids = 255;
2282 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
e8261171 2283 hw->wiphy->max_remain_on_channel_duration = 1000;
8223d2f5
JB		 2284 }
2285
e8261171
JB		 2286 INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
2287 INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
2288
acc1e7a3 2289 hw->channel_change_time = 1;
e8261171
JB		 2290 hw->queues = 5;
2291 hw->offchannel_tx_hw_queue = 4;
f59ac048
LR		 2292 hw->wiphy->interface_modes =
2293 BIT(NL80211_IFTYPE_STATION) |
55b39619 2294 BIT(NL80211_IFTYPE_AP) |
2ca27bcf
JB		 2295 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2296 BIT(NL80211_IFTYPE_P2P_GO) |
2b2d7795 2297 BIT(NL80211_IFTYPE_ADHOC) |
8b3d1cc2
JB		 2298 BIT(NL80211_IFTYPE_MESH_POINT) |
2299 BIT(NL80211_IFTYPE_P2P_DEVICE);
acc1e7a3 2300
4b14c96d 2301 hw->flags = IEEE80211_HW_MFP_CAPABLE |
0f78231b
JB		 2302 IEEE80211_HW_SIGNAL_DBM |
2303 IEEE80211_HW_SUPPORTS_STATIC_SMPS |
a75b4363 2304 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
4b6f1dd6 2305 IEEE80211_HW_AMPDU_AGGREGATION |
e8261171
JB		 2306 IEEE80211_HW_WANT_MONITOR_VIF |
2307 IEEE80211_HW_QUEUE_CONTROL;
1eb32179
KB		 2308 if (rctbl)
2309 hw->flags |= IEEE80211_HW_SUPPORTS_RC_TABLE;
fa77533e 2310
81ddbb5c
JB		 2311 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2312 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
43bc3e89 2313
8aa21e6f
JB		 2314 /* ask mac80211 to reserve space for magic */
2315 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
81c06523 2316 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
93c78c5d 2317 hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
8aa21e6f 2318
22cad735
LR		 2319 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
2320 sizeof(hwsim_channels_2ghz));
2321 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
2322 sizeof(hwsim_channels_5ghz));
acc1e7a3 2323 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
22cad735
LR		 2324
2325 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
2326 struct ieee80211_supported_band *sband = &data->bands[band];
2327 switch (band) {
2328 case IEEE80211_BAND_2GHZ:
2329 sband->channels = data->channels_2ghz;
2330 sband->n_channels =
2331 ARRAY_SIZE(hwsim_channels_2ghz);
d130eb49
JB		 2332 sband->bitrates = data->rates;
2333 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
22cad735
LR		 2334 break;
2335 case IEEE80211_BAND_5GHZ:
2336 sband->channels = data->channels_5ghz;
2337 sband->n_channels =
2338 ARRAY_SIZE(hwsim_channels_5ghz);
d130eb49
JB		 2339 sband->bitrates = data->rates + 4;
2340 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
22cad735
LR		 2341 break;
2342 default:
1b083ea4 2343 continue;
22cad735
LR		 2344 }
2345
22cad735
LR		 2346 sband->ht_cap.ht_supported = true;
2347 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
2348 IEEE80211_HT_CAP_GRN_FLD |
2349 IEEE80211_HT_CAP_SGI_40 |
2350 IEEE80211_HT_CAP_DSSSCCK40;
2351 sband->ht_cap.ampdu_factor = 0x3;
2352 sband->ht_cap.ampdu_density = 0x6;
2353 memset(&sband->ht_cap.mcs, 0,
2354 sizeof(sband->ht_cap.mcs));
2355 sband->ht_cap.mcs.rx_mask[0] = 0xff;
2356 sband->ht_cap.mcs.rx_mask[1] = 0xff;
2357 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2358
2359 hw->wiphy->bands[band] = sband;
b296005c 2360
b296005c
JB		 2361 sband->vht_cap.vht_supported = true;
2362 sband->vht_cap.cap =
2363 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
2364 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
2365 IEEE80211_VHT_CAP_RXLDPC |
2366 IEEE80211_VHT_CAP_SHORT_GI_80 |
2367 IEEE80211_VHT_CAP_SHORT_GI_160 |
2368 IEEE80211_VHT_CAP_TXSTBC |
2369 IEEE80211_VHT_CAP_RXSTBC_1 |
2370 IEEE80211_VHT_CAP_RXSTBC_2 |
2371 IEEE80211_VHT_CAP_RXSTBC_3 |
2372 IEEE80211_VHT_CAP_RXSTBC_4 |
01331040 2373 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
b296005c
JB		 2374 sband->vht_cap.vht_mcs.rx_mcs_map =
2375 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_8 << 0 |
2376 IEEE80211_VHT_MCS_SUPPORT_0_8 << 2 |
2377 IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
2378 IEEE80211_VHT_MCS_SUPPORT_0_8 << 6 |
2379 IEEE80211_VHT_MCS_SUPPORT_0_8 << 8 |
2380 IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
2381 IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
2382 IEEE80211_VHT_MCS_SUPPORT_0_8 << 14);
2383 sband->vht_cap.vht_mcs.tx_mcs_map =
2384 sband->vht_cap.vht_mcs.rx_mcs_map;
22cad735 2385 }
73606d00
DW		 2386 /* By default all radios are belonging to the first group */
2387 data->group = 1;
f74cb0f7 2388 mutex_init(&data->mutex);
acc1e7a3 2389
7882513b
JL		 2390 /* Enable frame retransmissions for lossy channels */
2391 hw->max_rates = 4;
2392 hw->max_rate_tries = 11;
2393
4a5af9c2
LR		 2394 /* Work to be done prior to ieee80211_register_hw() */
2395 switch (regtest) {
2396 case HWSIM_REGTEST_DISABLED:
2397 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
2398 case HWSIM_REGTEST_DRIVER_REG_ALL:
2399 case HWSIM_REGTEST_DIFF_COUNTRY:
2400 /*
2401 * Nothing to be done for driver regulatory domain
2402 * hints prior to ieee80211_register_hw()
2403 */
2404 break;
2405 case HWSIM_REGTEST_WORLD_ROAM:
2406 if (i == 0) {
5be83de5 2407 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 2408 wiphy_apply_custom_regulatory(hw->wiphy,
2409 &hwsim_world_regdom_custom_01);
2410 }
2411 break;
2412 case HWSIM_REGTEST_CUSTOM_WORLD:
5be83de5 2413 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 2414 wiphy_apply_custom_regulatory(hw->wiphy,
2415 &hwsim_world_regdom_custom_01);
2416 break;
2417 case HWSIM_REGTEST_CUSTOM_WORLD_2:
2418 if (i == 0) {
5be83de5 2419 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 2420 wiphy_apply_custom_regulatory(hw->wiphy,
2421 &hwsim_world_regdom_custom_01);
2422 } else if (i == 1) {
5be83de5 2423 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 2424 wiphy_apply_custom_regulatory(hw->wiphy,
2425 &hwsim_world_regdom_custom_02);
2426 }
2427 break;
2428 case HWSIM_REGTEST_STRICT_ALL:
5be83de5 2429 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
4a5af9c2
LR		 2430 break;
2431 case HWSIM_REGTEST_STRICT_FOLLOW:
2432 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
2433 if (i == 0)
5be83de5 2434 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
4a5af9c2
LR		 2435 break;
2436 case HWSIM_REGTEST_ALL:
2437 if (i == 0) {
5be83de5 2438 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 2439 wiphy_apply_custom_regulatory(hw->wiphy,
2440 &hwsim_world_regdom_custom_01);
2441 } else if (i == 1) {
5be83de5 2442 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 2443 wiphy_apply_custom_regulatory(hw->wiphy,
2444 &hwsim_world_regdom_custom_02);
2445 } else if (i == 4)
5be83de5 2446 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
4a5af9c2
LR		 2447 break;
2448 default:
2449 break;
2450 }
2451
98dfaa57
LR		 2452 /* give the regulatory workqueue a chance to run */
2453 if (regtest)
2454 schedule_timeout_interruptible(1);
acc1e7a3
JM		 2455 err = ieee80211_register_hw(hw);
2456 if (err < 0) {
2457 printk(KERN_DEBUG "mac80211_hwsim: "
2458 "ieee80211_register_hw failed (%d)\n", err);
3a33cc10 2459 goto failed_hw;
acc1e7a3
JM		 2460 }
2461
4a5af9c2
LR		 2462 /* Work to be done after to ieee80211_register_hw() */
2463 switch (regtest) {
2464 case HWSIM_REGTEST_WORLD_ROAM:
2465 case HWSIM_REGTEST_DISABLED:
2466 break;
2467 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
2468 if (!i)
2469 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2470 break;
2471 case HWSIM_REGTEST_DRIVER_REG_ALL:
2472 case HWSIM_REGTEST_STRICT_ALL:
2473 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2474 break;
2475 case HWSIM_REGTEST_DIFF_COUNTRY:
2476 if (i < ARRAY_SIZE(hwsim_alpha2s))
2477 regulatory_hint(hw->wiphy, hwsim_alpha2s[i]);
2478 break;
2479 case HWSIM_REGTEST_CUSTOM_WORLD:
2480 case HWSIM_REGTEST_CUSTOM_WORLD_2:
2481 /*
2482 * Nothing to be done for custom world regulatory
2483 * domains after to ieee80211_register_hw
2484 */
2485 break;
2486 case HWSIM_REGTEST_STRICT_FOLLOW:
2487 if (i == 0)
2488 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2489 break;
2490 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
2491 if (i == 0)
2492 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2493 else if (i == 1)
2494 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
2495 break;
2496 case HWSIM_REGTEST_ALL:
2497 if (i == 2)
2498 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2499 else if (i == 3)
2500 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
2501 else if (i == 4)
2502 regulatory_hint(hw->wiphy, hwsim_alpha2s[2]);
2503 break;
2504 default:
2505 break;
2506 }
2507
c96c31e4
JP		 2508 wiphy_debug(hw->wiphy, "hwaddr %pm registered\n",
2509 hw->wiphy->perm_addr);
acc1e7a3 2510
fc6971d4
JM		 2511 data->debugfs = debugfs_create_dir("hwsim",
2512 hw->wiphy->debugfsdir);
2513 data->debugfs_ps = debugfs_create_file("ps", 0666,
2514 data->debugfs, data,
2515 &hwsim_fops_ps);
73606d00
DW		 2516 data->debugfs_group = debugfs_create_file("group", 0666,
2517 data->debugfs, data,
2518 &hwsim_fops_group);
fc6971d4 2519
01e59e46
TP		 2520 tasklet_hrtimer_init(&data->beacon_timer,
2521 mac80211_hwsim_beacon,
2522 CLOCK_REALTIME, HRTIMER_MODE_ABS);
0e057d73
JB		 2523
2524 list_add_tail(&data->list, &hwsim_radios);
acc1e7a3
JM		 2525 }
2526
2527 hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
2528 if (hwsim_mon == NULL)
2529 goto failed;
2530
7882513b
JL		 2531 rtnl_lock();
2532
2533 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
3a33cc10 2534 if (err < 0)
acc1e7a3 2535 goto failed_mon;
3a33cc10 2536
7882513b
JL		 2537
2538 err = register_netdevice(hwsim_mon);
2539 if (err < 0)
2540 goto failed_mon;
2541
2542 rtnl_unlock();
2543
2544 err = hwsim_init_netlink();
2545 if (err < 0)
2546 goto failed_nl;
2547
acc1e7a3
JM		 2548 return 0;
2549
7882513b
JL		 2550failed_nl:
2551 printk(KERN_DEBUG "mac_80211_hwsim: failed initializing netlink\n");
2552 return err;
2553
acc1e7a3
JM		 2554failed_mon:
2555 rtnl_unlock();
2556 free_netdev(hwsim_mon);
3a33cc10
IS		 2557 mac80211_hwsim_free();
2558 return err;
acc1e7a3 2559
3a33cc10
IS		 2560failed_hw:
2561 device_unregister(data->dev);
2562failed_drvdata:
2563 ieee80211_free_hw(hw);
acc1e7a3
JM		 2564failed:
2565 mac80211_hwsim_free();
9ea92774
MP		 2566failed_unregister_driver:
2567 driver_unregister(&mac80211_hwsim_driver);
acc1e7a3
JM		 2568 return err;
2569}
f8fffc7e 2570module_init(init_mac80211_hwsim);
acc1e7a3
JM		 2571
2572static void __exit exit_mac80211_hwsim(void)
2573{
0e057d73 2574 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
acc1e7a3 2575
7882513b
JL		 2576 hwsim_exit_netlink();
2577
acc1e7a3 2578 mac80211_hwsim_free();
5d416351 2579 unregister_netdev(hwsim_mon);
9ea92774 2580 driver_unregister(&mac80211_hwsim_driver);
acc1e7a3 2581}
acc1e7a3 2582module_exit(exit_mac80211_hwsim);
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