projects / linux-block.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
mac80211: Use a cfg80211_chan_def in ieee80211_hw_conf_chan
[linux-block.git] / drivers / net / wireless / mac80211_hwsim.c
CommitLineData
acc1e7a3
JM		 1/*
2 * mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211
3 * Copyright (c) 2008, Jouni Malinen <j@w1.fi>
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>
fc6971d4 28#include <linux/debugfs.h>
9d9779e7 29#include <linux/module.h>
2f40b940 30#include <linux/ktime.h>
7882513b
JL		 31#include <net/genetlink.h>
32#include "mac80211_hwsim.h"
33
34#define WARN_QUEUE 100
35#define MAX_QUEUE 200
acc1e7a3
JM		 36
37MODULE_AUTHOR("Jouni Malinen");
38MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
39MODULE_LICENSE("GPL");
40
15e47304 41static u32 wmediumd_portid;
a1910f9c 42
acc1e7a3
JM		 43static int radios = 2;
44module_param(radios, int, 0444);
45MODULE_PARM_DESC(radios, "Number of simulated radios");
46
e8261171
JB		 47static int channels = 1;
48module_param(channels, int, 0444);
49MODULE_PARM_DESC(channels, "Number of concurrent channels");
69068036 50
a357d7f9
JB		 51static bool paged_rx = false;
52module_param(paged_rx, bool, 0644);
53MODULE_PARM_DESC(paged_rx, "Use paged SKBs for RX instead of linear ones");
54
4a5af9c2
LR		 55/**
56 * enum hwsim_regtest - the type of regulatory tests we offer
57 *
58 * These are the different values you can use for the regtest
59 * module parameter. This is useful to help test world roaming
60 * and the driver regulatory_hint() call and combinations of these.
61 * If you want to do specific alpha2 regulatory domain tests simply
62 * use the userspace regulatory request as that will be respected as
63 * well without the need of this module parameter. This is designed
64 * only for testing the driver regulatory request, world roaming
65 * and all possible combinations.
66 *
67 * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
68 * this is the default value.
69 * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
70 * hint, only one driver regulatory hint will be sent as such the
71 * secondary radios are expected to follow.
72 * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
73 * request with all radios reporting the same regulatory domain.
74 * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
75 * different regulatory domains requests. Expected behaviour is for
76 * an intersection to occur but each device will still use their
77 * respective regulatory requested domains. Subsequent radios will
78 * use the resulting intersection.
25985edc 79 * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We accomplish
4a5af9c2
LR		 80 * this by using a custom beacon-capable regulatory domain for the first
81 * radio. All other device world roam.
82 * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
83 * domain requests. All radios will adhere to this custom world regulatory
84 * domain.
85 * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
86 * domain requests. The first radio will adhere to the first custom world
87 * regulatory domain, the second one to the second custom world regulatory
88 * domain. All other devices will world roam.
89 * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain
90 * settings, only the first radio will send a regulatory domain request
91 * and use strict settings. The rest of the radios are expected to follow.
92 * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
93 * settings. All radios will adhere to this.
94 * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
95 * domain settings, combined with secondary driver regulatory domain
96 * settings. The first radio will get a strict regulatory domain setting
97 * using the first driver regulatory request and the second radio will use
98 * non-strict settings using the second driver regulatory request. All
99 * other devices should follow the intersection created between the
100 * first two.
101 * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
102 * at least 6 radios for a complete test. We will test in this order:
103 * 1 - driver custom world regulatory domain
104 * 2 - second custom world regulatory domain
105 * 3 - first driver regulatory domain request
106 * 4 - second driver regulatory domain request
107 * 5 - strict regulatory domain settings using the third driver regulatory
108 * domain request
109 * 6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
110 * regulatory requests.
111 */
112enum hwsim_regtest {
113 HWSIM_REGTEST_DISABLED = 0,
114 HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1,
115 HWSIM_REGTEST_DRIVER_REG_ALL = 2,
116 HWSIM_REGTEST_DIFF_COUNTRY = 3,
117 HWSIM_REGTEST_WORLD_ROAM = 4,
118 HWSIM_REGTEST_CUSTOM_WORLD = 5,
119 HWSIM_REGTEST_CUSTOM_WORLD_2 = 6,
120 HWSIM_REGTEST_STRICT_FOLLOW = 7,
121 HWSIM_REGTEST_STRICT_ALL = 8,
122 HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9,
123 HWSIM_REGTEST_ALL = 10,
124};
125
126/* Set to one of the HWSIM_REGTEST_* values above */
127static int regtest = HWSIM_REGTEST_DISABLED;
128module_param(regtest, int, 0444);
129MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run");
130
131static const char *hwsim_alpha2s[] = {
132 "FI",
133 "AL",
134 "US",
135 "DE",
136 "JP",
137 "AL",
138};
139
140static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = {
141 .n_reg_rules = 4,
142 .alpha2 = "99",
143 .reg_rules = {
144 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
145 REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
146 REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
147 REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
148 }
149};
150
151static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = {
152 .n_reg_rules = 2,
153 .alpha2 = "99",
154 .reg_rules = {
155 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
156 REG_RULE(5725-10, 5850+10, 40, 0, 30,
157 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
158 }
159};
160
8aa21e6f
JB		 161struct hwsim_vif_priv {
162 u32 magic;
fc6971d4
JM		 163 u8 bssid[ETH_ALEN];
164 bool assoc;
165 u16 aid;
8aa21e6f
JB		 166};
167
168#define HWSIM_VIF_MAGIC 0x69537748
169
170static inline void hwsim_check_magic(struct ieee80211_vif *vif)
171{
172 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
e8261171
JB		 173 WARN(vp->magic != HWSIM_VIF_MAGIC,
174 "Invalid VIF (%p) magic %#x, %pM, %d/%d\n",
175 vif, vp->magic, vif->addr, vif->type, vif->p2p);
8aa21e6f
JB		 176}
177
178static inline void hwsim_set_magic(struct ieee80211_vif *vif)
179{
180 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
181 vp->magic = HWSIM_VIF_MAGIC;
182}
183
184static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
185{
186 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
187 vp->magic = 0;
188}
acc1e7a3 189
81c06523
JB		 190struct hwsim_sta_priv {
191 u32 magic;
192};
193
e8261171 194#define HWSIM_STA_MAGIC 0x6d537749
81c06523
JB		 195
196static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
197{
198 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
5d6924ea 199 WARN_ON(sp->magic != HWSIM_STA_MAGIC);
81c06523
JB		 200}
201
202static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
203{
204 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
5d6924ea 205 sp->magic = HWSIM_STA_MAGIC;
81c06523
JB		 206}
207
208static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
209{
210 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
211 sp->magic = 0;
212}
213
e8261171
JB		 214struct hwsim_chanctx_priv {
215 u32 magic;
216};
217
218#define HWSIM_CHANCTX_MAGIC 0x6d53774a
219
220static inline void hwsim_check_chanctx_magic(struct ieee80211_chanctx_conf *c)
221{
222 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
223 WARN_ON(cp->magic != HWSIM_CHANCTX_MAGIC);
224}
225
226static inline void hwsim_set_chanctx_magic(struct ieee80211_chanctx_conf *c)
227{
228 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
229 cp->magic = HWSIM_CHANCTX_MAGIC;
230}
231
232static inline void hwsim_clear_chanctx_magic(struct ieee80211_chanctx_conf *c)
233{
234 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
235 cp->magic = 0;
236}
237
acc1e7a3
JM		 238static struct class *hwsim_class;
239
acc1e7a3
JM		 240static struct net_device *hwsim_mon; /* global monitor netdev */
241
22cad735
LR		 242#define CHAN2G(_freq) { \
243 .band = IEEE80211_BAND_2GHZ, \
244 .center_freq = (_freq), \
245 .hw_value = (_freq), \
246 .max_power = 20, \
247}
248
249#define CHAN5G(_freq) { \
250 .band = IEEE80211_BAND_5GHZ, \
251 .center_freq = (_freq), \
252 .hw_value = (_freq), \
253 .max_power = 20, \
254}
255
256static const struct ieee80211_channel hwsim_channels_2ghz[] = {
257 CHAN2G(2412), /* Channel 1 */
258 CHAN2G(2417), /* Channel 2 */
259 CHAN2G(2422), /* Channel 3 */
260 CHAN2G(2427), /* Channel 4 */
261 CHAN2G(2432), /* Channel 5 */
262 CHAN2G(2437), /* Channel 6 */
263 CHAN2G(2442), /* Channel 7 */
264 CHAN2G(2447), /* Channel 8 */
265 CHAN2G(2452), /* Channel 9 */
266 CHAN2G(2457), /* Channel 10 */
267 CHAN2G(2462), /* Channel 11 */
268 CHAN2G(2467), /* Channel 12 */
269 CHAN2G(2472), /* Channel 13 */
270 CHAN2G(2484), /* Channel 14 */
271};
acc1e7a3 272
22cad735
LR		 273static const struct ieee80211_channel hwsim_channels_5ghz[] = {
274 CHAN5G(5180), /* Channel 36 */
275 CHAN5G(5200), /* Channel 40 */
276 CHAN5G(5220), /* Channel 44 */
277 CHAN5G(5240), /* Channel 48 */
278
279 CHAN5G(5260), /* Channel 52 */
280 CHAN5G(5280), /* Channel 56 */
281 CHAN5G(5300), /* Channel 60 */
282 CHAN5G(5320), /* Channel 64 */
283
284 CHAN5G(5500), /* Channel 100 */
285 CHAN5G(5520), /* Channel 104 */
286 CHAN5G(5540), /* Channel 108 */
287 CHAN5G(5560), /* Channel 112 */
288 CHAN5G(5580), /* Channel 116 */
289 CHAN5G(5600), /* Channel 120 */
290 CHAN5G(5620), /* Channel 124 */
291 CHAN5G(5640), /* Channel 128 */
292 CHAN5G(5660), /* Channel 132 */
293 CHAN5G(5680), /* Channel 136 */
294 CHAN5G(5700), /* Channel 140 */
295
296 CHAN5G(5745), /* Channel 149 */
297 CHAN5G(5765), /* Channel 153 */
298 CHAN5G(5785), /* Channel 157 */
299 CHAN5G(5805), /* Channel 161 */
300 CHAN5G(5825), /* Channel 165 */
acc1e7a3
JM		 301};
302
303static const struct ieee80211_rate hwsim_rates[] = {
304 { .bitrate = 10 },
305 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
306 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
307 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
308 { .bitrate = 60 },
309 { .bitrate = 90 },
310 { .bitrate = 120 },
311 { .bitrate = 180 },
312 { .bitrate = 240 },
313 { .bitrate = 360 },
314 { .bitrate = 480 },
315 { .bitrate = 540 }
316};
317
0e057d73
JB		 318static spinlock_t hwsim_radio_lock;
319static struct list_head hwsim_radios;
320
acc1e7a3 321struct mac80211_hwsim_data {
0e057d73
JB		 322 struct list_head list;
323 struct ieee80211_hw *hw;
acc1e7a3 324 struct device *dev;
1b083ea4 325 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
22cad735
LR		 326 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
327 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
acc1e7a3
JM		 328 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
329
ef15aac6
JB		 330 struct mac_address addresses[2];
331
e8261171
JB		 332 struct ieee80211_channel *tmp_chan;
333 struct delayed_work roc_done;
334 struct delayed_work hw_scan;
335 struct cfg80211_scan_request *hw_scan_request;
336 struct ieee80211_vif *hw_scan_vif;
337 int scan_chan_idx;
338
acc1e7a3 339 struct ieee80211_channel *channel;
01e59e46 340 u64 beacon_int /* beacon interval in us */;
acc1e7a3 341 unsigned int rx_filter;
f74cb0f7
LR		 342 bool started, idle, scanning;
343 struct mutex mutex;
01e59e46 344 struct tasklet_hrtimer beacon_timer;
fc6971d4
JM		 345 enum ps_mode {
346 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
347 } ps;
348 bool ps_poll_pending;
349 struct dentry *debugfs;
350 struct dentry *debugfs_ps;
73606d00 351
7882513b 352 struct sk_buff_head pending; /* packets pending */
73606d00
DW		 353 /*
354 * Only radios in the same group can communicate together (the
355 * channel has to match too). Each bit represents a group. A
356 * radio can be in more then one group.
357 */
358 u64 group;
359 struct dentry *debugfs_group;
bdd7bd16
BG		 360
361 int power_level;
2f40b940
JC		 362
363 /* difference between this hw's clock and the real clock, in usecs */
45034bfb 364 s64 tsf_offset;
c51f8783 365 s64 bcn_delta;
b66851c3
TP		 366 /* absolute beacon transmission time. Used to cover up "tx" delay. */
367 u64 abs_bcn_ts;
acc1e7a3
JM		 368};
369
370
371struct hwsim_radiotap_hdr {
372 struct ieee80211_radiotap_header hdr;
2f40b940 373 __le64 rt_tsft;
acc1e7a3
JM		 374 u8 rt_flags;
375 u8 rt_rate;
376 __le16 rt_channel;
377 __le16 rt_chbitmask;
ba2d3587 378} __packed;
acc1e7a3 379
7882513b
JL		 380/* MAC80211_HWSIM netlinf family */
381static struct genl_family hwsim_genl_family = {
382 .id = GENL_ID_GENERATE,
383 .hdrsize = 0,
384 .name = "MAC80211_HWSIM",
385 .version = 1,
386 .maxattr = HWSIM_ATTR_MAX,
387};
388
389/* MAC80211_HWSIM netlink policy */
390
391static struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
392 [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC,
393 .len = 6*sizeof(u8) },
394 [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC,
395 .len = 6*sizeof(u8) },
396 [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
397 .len = IEEE80211_MAX_DATA_LEN },
398 [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
399 [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
400 [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
401 [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC,
402 .len = IEEE80211_TX_MAX_RATES*sizeof(
403 struct hwsim_tx_rate)},
404 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
405};
acc1e7a3 406
d0cf9c0d
SH		 407static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
408 struct net_device *dev)
acc1e7a3
JM		 409{
410 /* TODO: allow packet injection */
411 dev_kfree_skb(skb);
6ed10654 412 return NETDEV_TX_OK;
acc1e7a3
JM		 413}
414
b66851c3
TP		 415static inline u64 mac80211_hwsim_get_tsf_raw(void)
416{
417 return ktime_to_us(ktime_get_real());
418}
419
2f40b940
JC		 420static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
421{
b66851c3 422 u64 now = mac80211_hwsim_get_tsf_raw();
2f40b940
JC		 423 return cpu_to_le64(now + data->tsf_offset);
424}
acc1e7a3 425
12ce8ba3 426static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
b66851c3 427 struct ieee80211_vif *vif)
12ce8ba3
JC		 428{
429 struct mac80211_hwsim_data *data = hw->priv;
430 return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
431}
432
433static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
434 struct ieee80211_vif *vif, u64 tsf)
435{
436 struct mac80211_hwsim_data *data = hw->priv;
45034bfb 437 u64 now = mac80211_hwsim_get_tsf(hw, vif);
c51f8783 438 u32 bcn_int = data->beacon_int;
45034bfb
TP		 439 s64 delta = tsf - now;
440
441 data->tsf_offset += delta;
c51f8783
TP		 442 /* adjust after beaconing with new timestamp at old TBTT */
443 data->bcn_delta = do_div(delta, bcn_int);
12ce8ba3
JC		 444}
445
acc1e7a3 446static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
e8261171
JB		 447 struct sk_buff *tx_skb,
448 struct ieee80211_channel *chan)
acc1e7a3
JM		 449{
450 struct mac80211_hwsim_data *data = hw->priv;
451 struct sk_buff *skb;
452 struct hwsim_radiotap_hdr *hdr;
453 u16 flags;
454 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
455 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
456
457 if (!netif_running(hwsim_mon))
458 return;
459
460 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
461 if (skb == NULL)
462 return;
463
464 hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
465 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
466 hdr->hdr.it_pad = 0;
467 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
f248f105
JM		 468 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
469 (1 << IEEE80211_RADIOTAP_RATE) |
2f40b940 470 (1 << IEEE80211_RADIOTAP_TSFT) |
f248f105 471 (1 << IEEE80211_RADIOTAP_CHANNEL));
2f40b940 472 hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
acc1e7a3
JM		 473 hdr->rt_flags = 0;
474 hdr->rt_rate = txrate->bitrate / 5;
e8261171 475 hdr->rt_channel = cpu_to_le16(chan->center_freq);
acc1e7a3
JM		 476 flags = IEEE80211_CHAN_2GHZ;
477 if (txrate->flags & IEEE80211_RATE_ERP_G)
478 flags |= IEEE80211_CHAN_OFDM;
479 else
480 flags |= IEEE80211_CHAN_CCK;
481 hdr->rt_chbitmask = cpu_to_le16(flags);
482
483 skb->dev = hwsim_mon;
484 skb_set_mac_header(skb, 0);
485 skb->ip_summed = CHECKSUM_UNNECESSARY;
486 skb->pkt_type = PACKET_OTHERHOST;
f248f105 487 skb->protocol = htons(ETH_P_802_2);
acc1e7a3
JM		 488 memset(skb->cb, 0, sizeof(skb->cb));
489 netif_rx(skb);
490}
491
492
e8261171
JB		 493static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
494 const u8 *addr)
6c085227 495{
6c085227
JM		 496 struct sk_buff *skb;
497 struct hwsim_radiotap_hdr *hdr;
498 u16 flags;
499 struct ieee80211_hdr *hdr11;
500
501 if (!netif_running(hwsim_mon))
502 return;
503
504 skb = dev_alloc_skb(100);
505 if (skb == NULL)
506 return;
507
508 hdr = (struct hwsim_radiotap_hdr *) skb_put(skb, sizeof(*hdr));
509 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
510 hdr->hdr.it_pad = 0;
511 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
512 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
513 (1 << IEEE80211_RADIOTAP_CHANNEL));
514 hdr->rt_flags = 0;
515 hdr->rt_rate = 0;
e8261171 516 hdr->rt_channel = cpu_to_le16(chan->center_freq);
6c085227
JM		 517 flags = IEEE80211_CHAN_2GHZ;
518 hdr->rt_chbitmask = cpu_to_le16(flags);
519
520 hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
521 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
522 IEEE80211_STYPE_ACK);
523 hdr11->duration_id = cpu_to_le16(0);
524 memcpy(hdr11->addr1, addr, ETH_ALEN);
525
526 skb->dev = hwsim_mon;
527 skb_set_mac_header(skb, 0);
528 skb->ip_summed = CHECKSUM_UNNECESSARY;
529 skb->pkt_type = PACKET_OTHERHOST;
530 skb->protocol = htons(ETH_P_802_2);
531 memset(skb->cb, 0, sizeof(skb->cb));
532 netif_rx(skb);
533}
534
535
fc6971d4
JM		 536static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
537 struct sk_buff *skb)
538{
539 switch (data->ps) {
540 case PS_DISABLED:
541 return true;
542 case PS_ENABLED:
543 return false;
544 case PS_AUTO_POLL:
545 /* TODO: accept (some) Beacons by default and other frames only
546 * if pending PS-Poll has been sent */
547 return true;
548 case PS_MANUAL_POLL:
549 /* Allow unicast frames to own address if there is a pending
550 * PS-Poll */
551 if (data->ps_poll_pending &&
552 memcmp(data->hw->wiphy->perm_addr, skb->data + 4,
553 ETH_ALEN) == 0) {
554 data->ps_poll_pending = false;
555 return true;
556 }
557 return false;
558 }
559
560 return true;
561}
562
563
265dc7f0
JM		 564struct mac80211_hwsim_addr_match_data {
565 bool ret;
566 const u8 *addr;
567};
568
569static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
570 struct ieee80211_vif *vif)
571{
572 struct mac80211_hwsim_addr_match_data *md = data;
573 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
574 md->ret = true;
575}
576
577
578static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
579 const u8 *addr)
580{
581 struct mac80211_hwsim_addr_match_data md;
582
583 if (memcmp(addr, data->hw->wiphy->perm_addr, ETH_ALEN) == 0)
584 return true;
585
586 md.ret = false;
587 md.addr = addr;
588 ieee80211_iterate_active_interfaces_atomic(data->hw,
8b2c9824 589 IEEE80211_IFACE_ITER_NORMAL,
265dc7f0
JM		 590 mac80211_hwsim_addr_iter,
591 &md);
592
593 return md.ret;
594}
595
7882513b
JL		 596static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
597 struct sk_buff *my_skb,
15e47304 598 int dst_portid)
7882513b
JL		 599{
600 struct sk_buff *skb;
601 struct mac80211_hwsim_data *data = hw->priv;
602 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
603 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
604 void *msg_head;
605 unsigned int hwsim_flags = 0;
606 int i;
607 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
608
7882513b
JL		 609 if (data->ps != PS_DISABLED)
610 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
611 /* If the queue contains MAX_QUEUE skb's drop some */
612 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
613 /* Droping until WARN_QUEUE level */
614 while (skb_queue_len(&data->pending) >= WARN_QUEUE)
615 skb_dequeue(&data->pending);
616 }
617
58050fce 618 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
7882513b
JL		 619 if (skb == NULL)
620 goto nla_put_failure;
621
622 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
623 HWSIM_CMD_FRAME);
624 if (msg_head == NULL) {
625 printk(KERN_DEBUG "mac80211_hwsim: problem with msg_head\n");
626 goto nla_put_failure;
627 }
628
633c9389
DM		 629 if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
630 sizeof(struct mac_address), data->addresses[1].addr))
631 goto nla_put_failure;
265dc7f0 632
7882513b 633 /* We get the skb->data */
633c9389
DM		 634 if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
635 goto nla_put_failure;
7882513b
JL		 636
637 /* We get the flags for this transmission, and we translate them to
638 wmediumd flags */
639
640 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
641 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
642
643 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
644 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
645
633c9389
DM		 646 if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
647 goto nla_put_failure;
7882513b
JL		 648
649 /* We get the tx control (rate and retries) info*/
650
651 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
652 tx_attempts[i].idx = info->status.rates[i].idx;
653 tx_attempts[i].count = info->status.rates[i].count;
654 }
655
633c9389
DM		 656 if (nla_put(skb, HWSIM_ATTR_TX_INFO,
657 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
658 tx_attempts))
659 goto nla_put_failure;
7882513b
JL		 660
661 /* We create a cookie to identify this skb */
633c9389
DM		 662 if (nla_put_u64(skb, HWSIM_ATTR_COOKIE, (unsigned long) my_skb))
663 goto nla_put_failure;
7882513b
JL		 664
665 genlmsg_end(skb, msg_head);
15e47304 666 genlmsg_unicast(&init_net, skb, dst_portid);
7882513b
JL		 667
668 /* Enqueue the packet */
669 skb_queue_tail(&data->pending, my_skb);
670 return;
671
672nla_put_failure:
c393862f 673 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 674}
675
e8261171
JB		 676static bool hwsim_chans_compat(struct ieee80211_channel *c1,
677 struct ieee80211_channel *c2)
678{
679 if (!c1 || !c2)
680 return false;
681
682 return c1->center_freq == c2->center_freq;
683}
684
685struct tx_iter_data {
686 struct ieee80211_channel *channel;
687 bool receive;
688};
689
690static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
691 struct ieee80211_vif *vif)
692{
693 struct tx_iter_data *data = _data;
694
695 if (!vif->chanctx_conf)
696 return;
697
698 if (!hwsim_chans_compat(data->channel,
4bf88530 699 rcu_dereference(vif->chanctx_conf)->def.chan))
e8261171
JB		 700 return;
701
702 data->receive = true;
703}
704
7882513b 705static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
e8261171
JB		 706 struct sk_buff *skb,
707 struct ieee80211_channel *chan)
acc1e7a3 708{
0e057d73
JB		 709 struct mac80211_hwsim_data *data = hw->priv, *data2;
710 bool ack = false;
e36cfdc9 711 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
acc1e7a3 712 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
e36cfdc9 713 struct ieee80211_rx_status rx_status;
b66851c3 714 u64 now;
acc1e7a3
JM		 715
716 memset(&rx_status, 0, sizeof(rx_status));
f4bda337 717 rx_status.flag |= RX_FLAG_MACTIME_START;
e8261171
JB		 718 rx_status.freq = chan->center_freq;
719 rx_status.band = chan->band;
e6a9854b 720 rx_status.rate_idx = info->control.rates[0].idx;
281ed297
JM		 721 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
722 rx_status.flag |= RX_FLAG_HT;
723 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
724 rx_status.flag |= RX_FLAG_40MHZ;
725 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
726 rx_status.flag |= RX_FLAG_SHORT_GI;
4b14c96d 727 /* TODO: simulate real signal strength (and optional packet loss) */
bdd7bd16 728 rx_status.signal = data->power_level - 50;
acc1e7a3 729
fc6971d4
JM		 730 if (data->ps != PS_DISABLED)
731 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
732
90e3012e
JB		 733 /* release the skb's source info */
734 skb_orphan(skb);
c0acf38e 735 skb_dst_drop(skb);
90e3012e
JB		 736 skb->mark = 0;
737 secpath_reset(skb);
738 nf_reset(skb);
739
b66851c3
TP		 740 /*
741 * Get absolute mactime here so all HWs RX at the "same time", and
742 * absolute TX time for beacon mactime so the timestamp matches.
743 * Giving beacons a different mactime than non-beacons looks messy, but
744 * it helps the Toffset be exact and a ~10us mactime discrepancy
745 * probably doesn't really matter.
746 */
747 if (ieee80211_is_beacon(hdr->frame_control) ||
748 ieee80211_is_probe_resp(hdr->frame_control))
749 now = data->abs_bcn_ts;
750 else
751 now = mac80211_hwsim_get_tsf_raw();
752
acc1e7a3 753 /* Copy skb to all enabled radios that are on the current frequency */
0e057d73
JB		 754 spin_lock(&hwsim_radio_lock);
755 list_for_each_entry(data2, &hwsim_radios, list) {
acc1e7a3 756 struct sk_buff *nskb;
e8261171
JB		 757 struct tx_iter_data tx_iter_data = {
758 .receive = false,
759 .channel = chan,
760 };
acc1e7a3 761
0e057d73 762 if (data == data2)
acc1e7a3 763 continue;
0e057d73 764
e8261171
JB		 765 if (!data2->started || (data2->idle && !data2->tmp_chan) ||
766 !hwsim_ps_rx_ok(data2, skb))
acc1e7a3
JM		 767 continue;
768
e8261171
JB		 769 if (!(data->group & data2->group))
770 continue;
771
772 if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
773 !hwsim_chans_compat(chan, data2->channel)) {
774 ieee80211_iterate_active_interfaces_atomic(
8b2c9824
JB		 775 data2->hw, IEEE80211_IFACE_ITER_NORMAL,
776 mac80211_hwsim_tx_iter, &tx_iter_data);
e8261171
JB		 777 if (!tx_iter_data.receive)
778 continue;
779 }
780
90b9e446
JB		 781 /*
782 * reserve some space for our vendor and the normal
783 * radiotap header, since we're copying anyway
784 */
a357d7f9
JB		 785 if (skb->len < PAGE_SIZE && paged_rx) {
786 struct page *page = alloc_page(GFP_ATOMIC);
787
788 if (!page)
789 continue;
790
791 nskb = dev_alloc_skb(128);
792 if (!nskb) {
793 __free_page(page);
794 continue;
795 }
796
797 memcpy(page_address(page), skb->data, skb->len);
798 skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
799 } else {
800 nskb = skb_copy(skb, GFP_ATOMIC);
801 if (!nskb)
802 continue;
803 }
acc1e7a3 804
265dc7f0 805 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
0e057d73 806 ack = true;
f483ad25 807
b66851c3 808 rx_status.mactime = now + data2->tsf_offset;
90b9e446
JB		 809#if 0
810 /*
811 * Don't enable this code by default as the OUI 00:00:00
812 * is registered to Xerox so we shouldn't use it here, it
813 * might find its way into pcap files.
814 * Note that this code requires the headroom in the SKB
815 * that was allocated earlier.
816 */
817 rx_status.vendor_radiotap_oui[0] = 0x00;
818 rx_status.vendor_radiotap_oui[1] = 0x00;
819 rx_status.vendor_radiotap_oui[2] = 0x00;
820 rx_status.vendor_radiotap_subns = 127;
821 /*
822 * Radiotap vendor namespaces can (and should) also be
823 * split into fields by using the standard radiotap
824 * presence bitmap mechanism. Use just BIT(0) here for
825 * the presence bitmap.
826 */
827 rx_status.vendor_radiotap_bitmap = BIT(0);
828 /* We have 8 bytes of (dummy) data */
829 rx_status.vendor_radiotap_len = 8;
830 /* For testing, also require it to be aligned */
831 rx_status.vendor_radiotap_align = 8;
832 /* push the data */
833 memcpy(skb_push(nskb, 8), "ABCDEFGH", 8);
834#endif
835
f1d58c25
JB		 836 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
837 ieee80211_rx_irqsafe(data2->hw, nskb);
acc1e7a3 838 }
0e057d73 839 spin_unlock(&hwsim_radio_lock);
acc1e7a3 840
e36cfdc9
JM		 841 return ack;
842}
843
36323f81
TH		 844static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
845 struct ieee80211_tx_control *control,
846 struct sk_buff *skb)
e36cfdc9 847{
e8261171
JB		 848 struct mac80211_hwsim_data *data = hw->priv;
849 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
850 struct ieee80211_chanctx_conf *chanctx_conf;
851 struct ieee80211_channel *channel;
0e057d73 852 bool ack;
15e47304 853 u32 _portid;
e36cfdc9 854
e8261171 855 if (WARN_ON(skb->len < 10)) {
e36cfdc9
JM		 856 /* Should not happen; just a sanity check for addr1 use */
857 dev_kfree_skb(skb);
7bb45683 858 return;
e36cfdc9
JM		 859 }
860
e8261171
JB		 861 if (channels == 1) {
862 channel = data->channel;
863 } else if (txi->hw_queue == 4) {
864 channel = data->tmp_chan;
865 } else {
866 chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf);
867 if (chanctx_conf)
4bf88530 868 channel = chanctx_conf->def.chan;
e8261171
JB		 869 else
870 channel = NULL;
871 }
872
873 if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
874 dev_kfree_skb(skb);
875 return;
876 }
877
878 if (data->idle && !data->tmp_chan) {
879 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
880 dev_kfree_skb(skb);
881 return;
882 }
883
884 if (txi->control.vif)
885 hwsim_check_magic(txi->control.vif);
886 if (control->sta)
887 hwsim_check_sta_magic(control->sta);
888
889 txi->rate_driver_data[0] = channel;
890
891 mac80211_hwsim_monitor_rx(hw, skb, channel);
892
7882513b 893 /* wmediumd mode check */
15e47304 894 _portid = ACCESS_ONCE(wmediumd_portid);
7882513b 895
15e47304
EB		 896 if (_portid)
897 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
7882513b
JL		 898
899 /* NO wmediumd detected, perfect medium simulation */
e8261171 900 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
7882513b 901
6c085227
JM		 902 if (ack && skb->len >= 16) {
903 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
e8261171 904 mac80211_hwsim_monitor_ack(channel, hdr->addr2);
6c085227 905 }
e36cfdc9 906
e6a9854b 907 ieee80211_tx_info_clear_status(txi);
2a4ffa4c
JC		 908
909 /* frame was transmitted at most favorable rate at first attempt */
910 txi->control.rates[0].count = 1;
911 txi->control.rates[1].idx = -1;
912
e6a9854b
JB		 913 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
914 txi->flags |= IEEE80211_TX_STAT_ACK;
acc1e7a3 915 ieee80211_tx_status_irqsafe(hw, skb);
acc1e7a3
JM		 916}
917
918
919static int mac80211_hwsim_start(struct ieee80211_hw *hw)
920{
921 struct mac80211_hwsim_data *data = hw->priv;
c96c31e4 922 wiphy_debug(hw->wiphy, "%s\n", __func__);
3db1cd5c 923 data->started = true;
acc1e7a3
JM		 924 return 0;
925}
926
927
928static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
929{
930 struct mac80211_hwsim_data *data = hw->priv;
3db1cd5c 931 data->started = false;
01e59e46 932 tasklet_hrtimer_cancel(&data->beacon_timer);
c96c31e4 933 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 934}
935
936
937static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
1ed32e4f 938 struct ieee80211_vif *vif)
acc1e7a3 939{
c96c31e4 940 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 941 __func__, ieee80211_vif_type_p2p(vif),
942 vif->addr);
1ed32e4f 943 hwsim_set_magic(vif);
e8261171
JB		 944
945 vif->cab_queue = 0;
946 vif->hw_queue[IEEE80211_AC_VO] = 0;
947 vif->hw_queue[IEEE80211_AC_VI] = 1;
948 vif->hw_queue[IEEE80211_AC_BE] = 2;
949 vif->hw_queue[IEEE80211_AC_BK] = 3;
950
acc1e7a3
JM		 951 return 0;
952}
953
954
c35d0270
JB		 955static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
956 struct ieee80211_vif *vif,
2ca27bcf
JB		 957 enum nl80211_iftype newtype,
958 bool newp2p)
c35d0270 959{
2ca27bcf 960 newtype = ieee80211_iftype_p2p(newtype, newp2p);
c35d0270
JB		 961 wiphy_debug(hw->wiphy,
962 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
2ca27bcf
JB		 963 __func__, ieee80211_vif_type_p2p(vif),
964 newtype, vif->addr);
c35d0270
JB		 965 hwsim_check_magic(vif);
966
3eb92f6a
JB		 967 /*
968 * interface may change from non-AP to AP in
969 * which case this needs to be set up again
970 */
971 vif->cab_queue = 0;
972
c35d0270
JB		 973 return 0;
974}
975
acc1e7a3 976static void mac80211_hwsim_remove_interface(
1ed32e4f 977 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
acc1e7a3 978{
c96c31e4 979 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 980 __func__, ieee80211_vif_type_p2p(vif),
981 vif->addr);
1ed32e4f
JB		 982 hwsim_check_magic(vif);
983 hwsim_clear_magic(vif);
acc1e7a3
JM		 984}
985
e8261171
JB		 986static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
987 struct sk_buff *skb,
988 struct ieee80211_channel *chan)
989{
990 u32 _pid = ACCESS_ONCE(wmediumd_portid);
991
992 mac80211_hwsim_monitor_rx(hw, skb, chan);
993
994 if (_pid)
995 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
996
997 mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
998 dev_kfree_skb(skb);
999}
acc1e7a3
JM		 1000
1001static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
1002 struct ieee80211_vif *vif)
1003{
b66851c3
TP		 1004 struct mac80211_hwsim_data *data = arg;
1005 struct ieee80211_hw *hw = data->hw;
1006 struct ieee80211_tx_info *info;
1007 struct ieee80211_rate *txrate;
1008 struct ieee80211_mgmt *mgmt;
acc1e7a3 1009 struct sk_buff *skb;
acc1e7a3 1010
8aa21e6f
JB		 1011 hwsim_check_magic(vif);
1012
55b39619 1013 if (vif->type != NL80211_IFTYPE_AP &&
2b2d7795
JB		 1014 vif->type != NL80211_IFTYPE_MESH_POINT &&
1015 vif->type != NL80211_IFTYPE_ADHOC)
acc1e7a3
JM		 1016 return;
1017
1018 skb = ieee80211_beacon_get(hw, vif);
1019 if (skb == NULL)
1020 return;
b66851c3
TP		 1021 info = IEEE80211_SKB_CB(skb);
1022 txrate = ieee80211_get_tx_rate(hw, info);
1023
1024 mgmt = (struct ieee80211_mgmt *) skb->data;
1025 /* fake header transmission time */
1026 data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
1027 mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
1028 data->tsf_offset +
1029 24 * 8 * 10 / txrate->bitrate);
7882513b 1030
e8261171 1031 mac80211_hwsim_tx_frame(hw, skb,
4bf88530 1032 rcu_dereference(vif->chanctx_conf)->def.chan);
acc1e7a3
JM		 1033}
1034
01e59e46
TP		 1035static enum hrtimer_restart
1036mac80211_hwsim_beacon(struct hrtimer *timer)
acc1e7a3 1037{
01e59e46
TP		 1038 struct mac80211_hwsim_data *data =
1039 container_of(timer, struct mac80211_hwsim_data,
1040 beacon_timer.timer);
1041 struct ieee80211_hw *hw = data->hw;
1042 u64 bcn_int = data->beacon_int;
1043 ktime_t next_bcn;
acc1e7a3 1044
4c4c671a 1045 if (!data->started)
01e59e46 1046 goto out;
acc1e7a3 1047
f248f105 1048 ieee80211_iterate_active_interfaces_atomic(
8b2c9824 1049 hw, IEEE80211_IFACE_ITER_NORMAL,
b66851c3 1050 mac80211_hwsim_beacon_tx, data);
acc1e7a3 1051
c51f8783
TP		 1052 /* beacon at new TBTT + beacon interval */
1053 if (data->bcn_delta) {
1054 bcn_int -= data->bcn_delta;
1055 data->bcn_delta = 0;
1056 }
1057
01e59e46
TP		 1058 next_bcn = ktime_add(hrtimer_get_expires(timer),
1059 ns_to_ktime(bcn_int * 1000));
1060 tasklet_hrtimer_start(&data->beacon_timer, next_bcn, HRTIMER_MODE_ABS);
1061out:
1062 return HRTIMER_NORESTART;
acc1e7a3
JM		 1063}
1064
675a0b04
KB		 1065static const char * const hwsim_chanwidths[] = {
1066 [NL80211_CHAN_WIDTH_20_NOHT] = "noht",
1067 [NL80211_CHAN_WIDTH_20] = "ht20",
1068 [NL80211_CHAN_WIDTH_40] = "ht40",
1069 [NL80211_CHAN_WIDTH_80] = "vht80",
1070 [NL80211_CHAN_WIDTH_80P80] = "vht80p80",
1071 [NL80211_CHAN_WIDTH_160] = "vht160",
0aaffa9b 1072};
acc1e7a3 1073
e8975581 1074static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
acc1e7a3
JM		 1075{
1076 struct mac80211_hwsim_data *data = hw->priv;
e8975581 1077 struct ieee80211_conf *conf = &hw->conf;
0f78231b
JB		 1078 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
1079 [IEEE80211_SMPS_AUTOMATIC] = "auto",
1080 [IEEE80211_SMPS_OFF] = "off",
1081 [IEEE80211_SMPS_STATIC] = "static",
1082 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
1083 };
1084
675a0b04
KB		 1085 if (conf->chandef.chan)
1086 wiphy_debug(hw->wiphy,
1087 "%s (freq=%d(%d - %d)/%s idle=%d ps=%d smps=%s)\n",
1088 __func__,
1089 conf->chandef.chan->center_freq,
1090 conf->chandef.center_freq1,
1091 conf->chandef.center_freq2,
1092 hwsim_chanwidths[conf->chandef.width],
1093 !!(conf->flags & IEEE80211_CONF_IDLE),
1094 !!(conf->flags & IEEE80211_CONF_PS),
1095 smps_modes[conf->smps_mode]);
1096 else
1097 wiphy_debug(hw->wiphy,
1098 "%s (freq=0 idle=%d ps=%d smps=%s)\n",
1099 __func__,
1100 !!(conf->flags & IEEE80211_CONF_IDLE),
1101 !!(conf->flags & IEEE80211_CONF_PS),
1102 smps_modes[conf->smps_mode]);
acc1e7a3 1103
70541839
JM		 1104 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1105
675a0b04 1106 data->channel = conf->chandef.chan;
e8261171
JB		 1107
1108 WARN_ON(data->channel && channels > 1);
1109
bdd7bd16 1110 data->power_level = conf->power_level;
4c4c671a 1111 if (!data->started || !data->beacon_int)
01e59e46
TP		 1112 tasklet_hrtimer_cancel(&data->beacon_timer);
1113 else if (!hrtimer_is_queued(&data->beacon_timer.timer)) {
c51f8783
TP		 1114 u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
1115 u32 bcn_int = data->beacon_int;
1116 u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1117
01e59e46 1118 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1119 ns_to_ktime(until_tbtt * 1000),
01e59e46
TP		 1120 HRTIMER_MODE_REL);
1121 }
acc1e7a3
JM		 1122
1123 return 0;
1124}
1125
1126
1127static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
1128 unsigned int changed_flags,
3ac64bee 1129 unsigned int *total_flags,u64 multicast)
acc1e7a3
JM		 1130{
1131 struct mac80211_hwsim_data *data = hw->priv;
1132
c96c31e4 1133 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 1134
1135 data->rx_filter = 0;
1136 if (*total_flags & FIF_PROMISC_IN_BSS)
1137 data->rx_filter |= FIF_PROMISC_IN_BSS;
1138 if (*total_flags & FIF_ALLMULTI)
1139 data->rx_filter |= FIF_ALLMULTI;
1140
1141 *total_flags = data->rx_filter;
1142}
1143
8aa21e6f
JB		 1144static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
1145 struct ieee80211_vif *vif,
1146 struct ieee80211_bss_conf *info,
1147 u32 changed)
1148{
fc6971d4 1149 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
57c4d7b4 1150 struct mac80211_hwsim_data *data = hw->priv;
fc6971d4 1151
8aa21e6f 1152 hwsim_check_magic(vif);
fe63bfa3 1153
c96c31e4 1154 wiphy_debug(hw->wiphy, "%s(changed=0x%x)\n", __func__, changed);
fe63bfa3 1155
2d0ddec5 1156 if (changed & BSS_CHANGED_BSSID) {
c96c31e4
JP		 1157 wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
1158 __func__, info->bssid);
2d0ddec5
JB		 1159 memcpy(vp->bssid, info->bssid, ETH_ALEN);
1160 }
1161
fe63bfa3 1162 if (changed & BSS_CHANGED_ASSOC) {
c96c31e4
JP		 1163 wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
1164 info->assoc, info->aid);
fc6971d4
JM		 1165 vp->assoc = info->assoc;
1166 vp->aid = info->aid;
fe63bfa3
JM		 1167 }
1168
57c4d7b4 1169 if (changed & BSS_CHANGED_BEACON_INT) {
c96c31e4 1170 wiphy_debug(hw->wiphy, " BCNINT: %d\n", info->beacon_int);
01e59e46
TP		 1171 data->beacon_int = info->beacon_int * 1024;
1172 }
1173
1174 if (changed & BSS_CHANGED_BEACON_ENABLED) {
1175 wiphy_debug(hw->wiphy, " BCN EN: %d\n", info->enable_beacon);
1176 if (data->started &&
1177 !hrtimer_is_queued(&data->beacon_timer.timer) &&
1178 info->enable_beacon) {
c51f8783
TP		 1179 u64 tsf, until_tbtt;
1180 u32 bcn_int;
01e59e46
TP		 1181 if (WARN_ON(!data->beacon_int))
1182 data->beacon_int = 1000 * 1024;
c51f8783
TP		 1183 tsf = mac80211_hwsim_get_tsf(hw, vif);
1184 bcn_int = data->beacon_int;
1185 until_tbtt = bcn_int - do_div(tsf, bcn_int);
01e59e46 1186 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1187 ns_to_ktime(until_tbtt * 1000),
01e59e46
TP		 1188 HRTIMER_MODE_REL);
1189 } else if (!info->enable_beacon)
1190 tasklet_hrtimer_cancel(&data->beacon_timer);
57c4d7b4
JB		 1191 }
1192
fe63bfa3 1193 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
c96c31e4
JP		 1194 wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
1195 info->use_cts_prot);
fe63bfa3
JM		 1196 }
1197
1198 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
c96c31e4
JP		 1199 wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
1200 info->use_short_preamble);
fe63bfa3
JM		 1201 }
1202
1203 if (changed & BSS_CHANGED_ERP_SLOT) {
c96c31e4 1204 wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
fe63bfa3
JM		 1205 }
1206
1207 if (changed & BSS_CHANGED_HT) {
4bf88530
JB		 1208 wiphy_debug(hw->wiphy, " HT: op_mode=0x%x\n",
1209 info->ht_operation_mode);
fe63bfa3
JM		 1210 }
1211
1212 if (changed & BSS_CHANGED_BASIC_RATES) {
c96c31e4
JP		 1213 wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
1214 (unsigned long long) info->basic_rates);
fe63bfa3 1215 }
cbc668a7
JB		 1216
1217 if (changed & BSS_CHANGED_TXPOWER)
1218 wiphy_debug(hw->wiphy, " TX Power: %d dBm\n", info->txpower);
8aa21e6f
JB		 1219}
1220
1d669cbf
JB		 1221static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
1222 struct ieee80211_vif *vif,
1223 struct ieee80211_sta *sta)
1224{
1225 hwsim_check_magic(vif);
1226 hwsim_set_sta_magic(sta);
1227
1228 return 0;
1229}
1230
1231static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
1232 struct ieee80211_vif *vif,
1233 struct ieee80211_sta *sta)
1234{
1235 hwsim_check_magic(vif);
1236 hwsim_clear_sta_magic(sta);
1237
1238 return 0;
1239}
1240
8aa21e6f
JB		 1241static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
1242 struct ieee80211_vif *vif,
17741cdc
JB		 1243 enum sta_notify_cmd cmd,
1244 struct ieee80211_sta *sta)
8aa21e6f
JB		 1245{
1246 hwsim_check_magic(vif);
1d669cbf 1247
81c06523 1248 switch (cmd) {
89fad578
CL		 1249 case STA_NOTIFY_SLEEP:
1250 case STA_NOTIFY_AWAKE:
1251 /* TODO: make good use of these flags */
1252 break;
1d669cbf
JB		 1253 default:
1254 WARN(1, "Invalid sta notify: %d\n", cmd);
1255 break;
81c06523
JB		 1256 }
1257}
1258
1259static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
1260 struct ieee80211_sta *sta,
1261 bool set)
1262{
1263 hwsim_check_sta_magic(sta);
1264 return 0;
8aa21e6f 1265}
acc1e7a3 1266
1e898ff8 1267static int mac80211_hwsim_conf_tx(
8a3a3c85
EP		 1268 struct ieee80211_hw *hw,
1269 struct ieee80211_vif *vif, u16 queue,
1e898ff8
JM		 1270 const struct ieee80211_tx_queue_params *params)
1271{
c96c31e4
JP		 1272 wiphy_debug(hw->wiphy,
1273 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1274 __func__, queue,
1275 params->txop, params->cw_min,
1276 params->cw_max, params->aifs);
1e898ff8
JM		 1277 return 0;
1278}
1279
1289723e
HS		 1280static int mac80211_hwsim_get_survey(
1281 struct ieee80211_hw *hw, int idx,
1282 struct survey_info *survey)
1283{
1284 struct ieee80211_conf *conf = &hw->conf;
1285
c96c31e4 1286 wiphy_debug(hw->wiphy, "%s (idx=%d)\n", __func__, idx);
1289723e
HS		 1287
1288 if (idx != 0)
1289 return -ENOENT;
1290
1291 /* Current channel */
675a0b04 1292 survey->channel = conf->chandef.chan;
1289723e
HS		 1293
1294 /*
1295 * Magically conjured noise level --- this is only ok for simulated hardware.
1296 *
1297 * A real driver which cannot determine the real channel noise MUST NOT
1298 * report any noise, especially not a magically conjured one :-)
1299 */
1300 survey->filled = SURVEY_INFO_NOISE_DBM;
1301 survey->noise = -92;
1302
1303 return 0;
1304}
1305
aff89a9b
JB		 1306#ifdef CONFIG_NL80211_TESTMODE
1307/*
1308 * This section contains example code for using netlink
1309 * attributes with the testmode command in nl80211.
1310 */
1311
1312/* These enums need to be kept in sync with userspace */
1313enum hwsim_testmode_attr {
1314 __HWSIM_TM_ATTR_INVALID = 0,
1315 HWSIM_TM_ATTR_CMD = 1,
1316 HWSIM_TM_ATTR_PS = 2,
1317
1318 /* keep last */
1319 __HWSIM_TM_ATTR_AFTER_LAST,
1320 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1321};
1322
1323enum hwsim_testmode_cmd {
1324 HWSIM_TM_CMD_SET_PS = 0,
1325 HWSIM_TM_CMD_GET_PS = 1,
4d6d0ae2
JB		 1326 HWSIM_TM_CMD_STOP_QUEUES = 2,
1327 HWSIM_TM_CMD_WAKE_QUEUES = 3,
aff89a9b
JB		 1328};
1329
1330static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1331 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1332 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1333};
1334
1335static int hwsim_fops_ps_write(void *dat, u64 val);
1336
5bc38193
JB		 1337static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
1338 void *data, int len)
aff89a9b
JB		 1339{
1340 struct mac80211_hwsim_data *hwsim = hw->priv;
1341 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1342 struct sk_buff *skb;
1343 int err, ps;
1344
1345 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
1346 hwsim_testmode_policy);
1347 if (err)
1348 return err;
1349
1350 if (!tb[HWSIM_TM_ATTR_CMD])
1351 return -EINVAL;
1352
1353 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1354 case HWSIM_TM_CMD_SET_PS:
1355 if (!tb[HWSIM_TM_ATTR_PS])
1356 return -EINVAL;
1357 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1358 return hwsim_fops_ps_write(hwsim, ps);
1359 case HWSIM_TM_CMD_GET_PS:
1360 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1361 nla_total_size(sizeof(u32)));
1362 if (!skb)
1363 return -ENOMEM;
633c9389
DM		 1364 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
1365 goto nla_put_failure;
aff89a9b 1366 return cfg80211_testmode_reply(skb);
4d6d0ae2
JB		 1367 case HWSIM_TM_CMD_STOP_QUEUES:
1368 ieee80211_stop_queues(hw);
1369 return 0;
1370 case HWSIM_TM_CMD_WAKE_QUEUES:
1371 ieee80211_wake_queues(hw);
1372 return 0;
aff89a9b
JB		 1373 default:
1374 return -EOPNOTSUPP;
1375 }
1376
1377 nla_put_failure:
1378 kfree_skb(skb);
1379 return -ENOBUFS;
1380}
1381#endif
1382
8b73d13a
JB		 1383static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1384 struct ieee80211_vif *vif,
1385 enum ieee80211_ampdu_mlme_action action,
0b01f030
JB		 1386 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
1387 u8 buf_size)
8b73d13a
JB		 1388{
1389 switch (action) {
1390 case IEEE80211_AMPDU_TX_START:
1391 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1392 break;
18b559d5
JB		 1393 case IEEE80211_AMPDU_TX_STOP_CONT:
1394 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1395 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
8b73d13a
JB		 1396 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1397 break;
1398 case IEEE80211_AMPDU_TX_OPERATIONAL:
1399 break;
1400 case IEEE80211_AMPDU_RX_START:
1401 case IEEE80211_AMPDU_RX_STOP:
1402 break;
1403 default:
1404 return -EOPNOTSUPP;
1405 }
1406
1407 return 0;
1408}
1409
39ecc01d 1410static void mac80211_hwsim_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
a80f7c0b 1411{
7882513b 1412 /* Not implemented, queues only on kernel side */
a80f7c0b
JB		 1413}
1414
e8261171 1415static void hw_scan_work(struct work_struct *work)
69068036 1416{
e8261171
JB		 1417 struct mac80211_hwsim_data *hwsim =
1418 container_of(work, struct mac80211_hwsim_data, hw_scan.work);
1419 struct cfg80211_scan_request *req = hwsim->hw_scan_request;
1420 int dwell, i;
69068036 1421
e8261171
JB		 1422 mutex_lock(&hwsim->mutex);
1423 if (hwsim->scan_chan_idx >= req->n_channels) {
1424 wiphy_debug(hwsim->hw->wiphy, "hw scan complete\n");
1425 ieee80211_scan_completed(hwsim->hw, false);
1426 hwsim->hw_scan_request = NULL;
1427 hwsim->hw_scan_vif = NULL;
1428 hwsim->tmp_chan = NULL;
1429 mutex_unlock(&hwsim->mutex);
1430 return;
1431 }
1432
1433 wiphy_debug(hwsim->hw->wiphy, "hw scan %d MHz\n",
1434 req->channels[hwsim->scan_chan_idx]->center_freq);
1435
1436 hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
1437 if (hwsim->tmp_chan->flags & IEEE80211_CHAN_PASSIVE_SCAN ||
1438 !req->n_ssids) {
1439 dwell = 120;
1440 } else {
1441 dwell = 30;
1442 /* send probes */
1443 for (i = 0; i < req->n_ssids; i++) {
1444 struct sk_buff *probe;
1445
1446 probe = ieee80211_probereq_get(hwsim->hw,
1447 hwsim->hw_scan_vif,
1448 req->ssids[i].ssid,
1449 req->ssids[i].ssid_len,
b9a9ada1 1450 req->ie_len);
e8261171
JB		 1451 if (!probe)
1452 continue;
b9a9ada1
JB		 1453
1454 if (req->ie_len)
1455 memcpy(skb_put(probe, req->ie_len), req->ie,
1456 req->ie_len);
1457
e8261171
JB		 1458 local_bh_disable();
1459 mac80211_hwsim_tx_frame(hwsim->hw, probe,
1460 hwsim->tmp_chan);
1461 local_bh_enable();
1462 }
1463 }
1464 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
1465 msecs_to_jiffies(dwell));
1466 hwsim->scan_chan_idx++;
1467 mutex_unlock(&hwsim->mutex);
69068036
JB		 1468}
1469
1470static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
a060bbfe 1471 struct ieee80211_vif *vif,
69068036
JB		 1472 struct cfg80211_scan_request *req)
1473{
e8261171 1474 struct mac80211_hwsim_data *hwsim = hw->priv;
69068036 1475
e8261171
JB		 1476 mutex_lock(&hwsim->mutex);
1477 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1478 mutex_unlock(&hwsim->mutex);
1479 return -EBUSY;
1480 }
1481 hwsim->hw_scan_request = req;
1482 hwsim->hw_scan_vif = vif;
1483 hwsim->scan_chan_idx = 0;
1484 mutex_unlock(&hwsim->mutex);
69068036 1485
e8261171 1486 wiphy_debug(hw->wiphy, "hwsim hw_scan request\n");
69068036 1487
e8261171 1488 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
69068036
JB		 1489
1490 return 0;
1491}
1492
e8261171
JB		 1493static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
1494 struct ieee80211_vif *vif)
1495{
1496 struct mac80211_hwsim_data *hwsim = hw->priv;
1497
1498 wiphy_debug(hw->wiphy, "hwsim cancel_hw_scan\n");
1499
1500 cancel_delayed_work_sync(&hwsim->hw_scan);
1501
1502 mutex_lock(&hwsim->mutex);
1503 ieee80211_scan_completed(hwsim->hw, true);
1504 hwsim->tmp_chan = NULL;
1505 hwsim->hw_scan_request = NULL;
1506 hwsim->hw_scan_vif = NULL;
1507 mutex_unlock(&hwsim->mutex);
1508}
1509
f74cb0f7
LR		 1510static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw)
1511{
1512 struct mac80211_hwsim_data *hwsim = hw->priv;
1513
1514 mutex_lock(&hwsim->mutex);
1515
1516 if (hwsim->scanning) {
1517 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
1518 goto out;
1519 }
1520
1521 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
1522 hwsim->scanning = true;
1523
1524out:
1525 mutex_unlock(&hwsim->mutex);
1526}
1527
1528static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw)
1529{
1530 struct mac80211_hwsim_data *hwsim = hw->priv;
1531
1532 mutex_lock(&hwsim->mutex);
1533
1534 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
23ff98fc 1535 hwsim->scanning = false;
f74cb0f7
LR		 1536
1537 mutex_unlock(&hwsim->mutex);
1538}
1539
e8261171
JB		 1540static void hw_roc_done(struct work_struct *work)
1541{
1542 struct mac80211_hwsim_data *hwsim =
1543 container_of(work, struct mac80211_hwsim_data, roc_done.work);
1544
1545 mutex_lock(&hwsim->mutex);
1546 ieee80211_remain_on_channel_expired(hwsim->hw);
1547 hwsim->tmp_chan = NULL;
1548 mutex_unlock(&hwsim->mutex);
1549
1550 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC expired\n");
1551}
1552
1553static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
49884568 1554 struct ieee80211_vif *vif,
e8261171 1555 struct ieee80211_channel *chan,
d339d5ca
IP		 1556 int duration,
1557 enum ieee80211_roc_type type)
e8261171
JB		 1558{
1559 struct mac80211_hwsim_data *hwsim = hw->priv;
1560
1561 mutex_lock(&hwsim->mutex);
1562 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1563 mutex_unlock(&hwsim->mutex);
1564 return -EBUSY;
1565 }
1566
1567 hwsim->tmp_chan = chan;
1568 mutex_unlock(&hwsim->mutex);
1569
1570 wiphy_debug(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
1571 chan->center_freq, duration);
1572
1573 ieee80211_ready_on_channel(hw);
1574
1575 ieee80211_queue_delayed_work(hw, &hwsim->roc_done,
1576 msecs_to_jiffies(duration));
1577 return 0;
1578}
1579
1580static int mac80211_hwsim_croc(struct ieee80211_hw *hw)
1581{
1582 struct mac80211_hwsim_data *hwsim = hw->priv;
1583
1584 cancel_delayed_work_sync(&hwsim->roc_done);
1585
1586 mutex_lock(&hwsim->mutex);
1587 hwsim->tmp_chan = NULL;
1588 mutex_unlock(&hwsim->mutex);
1589
1590 wiphy_debug(hw->wiphy, "hwsim ROC canceled\n");
1591
1592 return 0;
1593}
1594
1595static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
1596 struct ieee80211_chanctx_conf *ctx)
1597{
1598 hwsim_set_chanctx_magic(ctx);
4bf88530
JB		 1599 wiphy_debug(hw->wiphy,
1600 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1601 ctx->def.chan->center_freq, ctx->def.width,
1602 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1603 return 0;
1604}
1605
1606static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
1607 struct ieee80211_chanctx_conf *ctx)
1608{
4bf88530
JB		 1609 wiphy_debug(hw->wiphy,
1610 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1611 ctx->def.chan->center_freq, ctx->def.width,
1612 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1613 hwsim_check_chanctx_magic(ctx);
1614 hwsim_clear_chanctx_magic(ctx);
1615}
1616
1617static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
1618 struct ieee80211_chanctx_conf *ctx,
1619 u32 changed)
1620{
1621 hwsim_check_chanctx_magic(ctx);
4bf88530
JB		 1622 wiphy_debug(hw->wiphy,
1623 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1624 ctx->def.chan->center_freq, ctx->def.width,
1625 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1626}
1627
1628static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
1629 struct ieee80211_vif *vif,
1630 struct ieee80211_chanctx_conf *ctx)
1631{
1632 hwsim_check_magic(vif);
1633 hwsim_check_chanctx_magic(ctx);
1634
1635 return 0;
1636}
1637
1638static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
1639 struct ieee80211_vif *vif,
1640 struct ieee80211_chanctx_conf *ctx)
1641{
1642 hwsim_check_magic(vif);
1643 hwsim_check_chanctx_magic(ctx);
1644}
1645
69068036 1646static struct ieee80211_ops mac80211_hwsim_ops =
acc1e7a3
JM		 1647{
1648 .tx = mac80211_hwsim_tx,
1649 .start = mac80211_hwsim_start,
1650 .stop = mac80211_hwsim_stop,
1651 .add_interface = mac80211_hwsim_add_interface,
c35d0270 1652 .change_interface = mac80211_hwsim_change_interface,
acc1e7a3
JM		 1653 .remove_interface = mac80211_hwsim_remove_interface,
1654 .config = mac80211_hwsim_config,
1655 .configure_filter = mac80211_hwsim_configure_filter,
8aa21e6f 1656 .bss_info_changed = mac80211_hwsim_bss_info_changed,
1d669cbf
JB		 1657 .sta_add = mac80211_hwsim_sta_add,
1658 .sta_remove = mac80211_hwsim_sta_remove,
8aa21e6f 1659 .sta_notify = mac80211_hwsim_sta_notify,
81c06523 1660 .set_tim = mac80211_hwsim_set_tim,
1e898ff8 1661 .conf_tx = mac80211_hwsim_conf_tx,
1289723e 1662 .get_survey = mac80211_hwsim_get_survey,
aff89a9b 1663 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
8b73d13a 1664 .ampdu_action = mac80211_hwsim_ampdu_action,
f74cb0f7
LR		 1665 .sw_scan_start = mac80211_hwsim_sw_scan,
1666 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
a80f7c0b 1667 .flush = mac80211_hwsim_flush,
12ce8ba3
JC		 1668 .get_tsf = mac80211_hwsim_get_tsf,
1669 .set_tsf = mac80211_hwsim_set_tsf,
acc1e7a3
JM		 1670};
1671
1672
1673static void mac80211_hwsim_free(void)
1674{
0e057d73 1675 struct list_head tmplist, *i, *tmp;
e603d9d8 1676 struct mac80211_hwsim_data *data, *tmpdata;
0e057d73
JB		 1677
1678 INIT_LIST_HEAD(&tmplist);
1679
1680 spin_lock_bh(&hwsim_radio_lock);
1681 list_for_each_safe(i, tmp, &hwsim_radios)
1682 list_move(i, &tmplist);
1683 spin_unlock_bh(&hwsim_radio_lock);
1684
e603d9d8 1685 list_for_each_entry_safe(data, tmpdata, &tmplist, list) {
73606d00 1686 debugfs_remove(data->debugfs_group);
fc6971d4
JM		 1687 debugfs_remove(data->debugfs_ps);
1688 debugfs_remove(data->debugfs);
0e057d73
JB		 1689 ieee80211_unregister_hw(data->hw);
1690 device_unregister(data->dev);
1691 ieee80211_free_hw(data->hw);
acc1e7a3 1692 }
acc1e7a3
JM		 1693 class_destroy(hwsim_class);
1694}
1695
1696
1697static struct device_driver mac80211_hwsim_driver = {
1698 .name = "mac80211_hwsim"
1699};
1700
98d2faae
SH		 1701static const struct net_device_ops hwsim_netdev_ops = {
1702 .ndo_start_xmit = hwsim_mon_xmit,
1703 .ndo_change_mtu = eth_change_mtu,
1704 .ndo_set_mac_address = eth_mac_addr,
1705 .ndo_validate_addr = eth_validate_addr,
1706};
acc1e7a3
JM		 1707
1708static void hwsim_mon_setup(struct net_device *dev)
1709{
98d2faae 1710 dev->netdev_ops = &hwsim_netdev_ops;
acc1e7a3
JM		 1711 dev->destructor = free_netdev;
1712 ether_setup(dev);
1713 dev->tx_queue_len = 0;
1714 dev->type = ARPHRD_IEEE80211_RADIOTAP;
1715 memset(dev->dev_addr, 0, ETH_ALEN);
1716 dev->dev_addr[0] = 0x12;
1717}
1718
1719
fc6971d4
JM		 1720static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
1721{
1722 struct mac80211_hwsim_data *data = dat;
1723 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
fc6971d4
JM		 1724 struct sk_buff *skb;
1725 struct ieee80211_pspoll *pspoll;
1726
1727 if (!vp->assoc)
1728 return;
1729
c96c31e4
JP		 1730 wiphy_debug(data->hw->wiphy,
1731 "%s: send PS-Poll to %pM for aid %d\n",
1732 __func__, vp->bssid, vp->aid);
fc6971d4
JM		 1733
1734 skb = dev_alloc_skb(sizeof(*pspoll));
1735 if (!skb)
1736 return;
1737 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
1738 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
1739 IEEE80211_STYPE_PSPOLL |
1740 IEEE80211_FCTL_PM);
1741 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
1742 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
1743 memcpy(pspoll->ta, mac, ETH_ALEN);
7882513b 1744
e8261171
JB		 1745 rcu_read_lock();
1746 mac80211_hwsim_tx_frame(data->hw, skb,
4bf88530 1747 rcu_dereference(vif->chanctx_conf)->def.chan);
e8261171 1748 rcu_read_unlock();
fc6971d4
JM		 1749}
1750
fc6971d4
JM		 1751static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
1752 struct ieee80211_vif *vif, int ps)
1753{
1754 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
fc6971d4
JM		 1755 struct sk_buff *skb;
1756 struct ieee80211_hdr *hdr;
1757
1758 if (!vp->assoc)
1759 return;
1760
c96c31e4
JP		 1761 wiphy_debug(data->hw->wiphy,
1762 "%s: send data::nullfunc to %pM ps=%d\n",
1763 __func__, vp->bssid, ps);
fc6971d4
JM		 1764
1765 skb = dev_alloc_skb(sizeof(*hdr));
1766 if (!skb)
1767 return;
1768 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
1769 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1770 IEEE80211_STYPE_NULLFUNC |
1771 (ps ? IEEE80211_FCTL_PM : 0));
1772 hdr->duration_id = cpu_to_le16(0);
1773 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
1774 memcpy(hdr->addr2, mac, ETH_ALEN);
1775 memcpy(hdr->addr3, vp->bssid, 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
1783
1784static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
1785 struct ieee80211_vif *vif)
1786{
1787 struct mac80211_hwsim_data *data = dat;
1788 hwsim_send_nullfunc(data, mac, vif, 1);
1789}
1790
1791
1792static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
1793 struct ieee80211_vif *vif)
1794{
1795 struct mac80211_hwsim_data *data = dat;
1796 hwsim_send_nullfunc(data, mac, vif, 0);
1797}
1798
1799
1800static int hwsim_fops_ps_read(void *dat, u64 *val)
1801{
1802 struct mac80211_hwsim_data *data = dat;
1803 *val = data->ps;
1804 return 0;
1805}
1806
1807static int hwsim_fops_ps_write(void *dat, u64 val)
1808{
1809 struct mac80211_hwsim_data *data = dat;
1810 enum ps_mode old_ps;
1811
1812 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
1813 val != PS_MANUAL_POLL)
1814 return -EINVAL;
1815
1816 old_ps = data->ps;
1817 data->ps = val;
1818
1819 if (val == PS_MANUAL_POLL) {
1820 ieee80211_iterate_active_interfaces(data->hw,
8b2c9824 1821 IEEE80211_IFACE_ITER_NORMAL,
fc6971d4
JM		 1822 hwsim_send_ps_poll, data);
1823 data->ps_poll_pending = true;
1824 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
1825 ieee80211_iterate_active_interfaces(data->hw,
8b2c9824 1826 IEEE80211_IFACE_ITER_NORMAL,
fc6971d4
JM		 1827 hwsim_send_nullfunc_ps,
1828 data);
1829 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
1830 ieee80211_iterate_active_interfaces(data->hw,
8b2c9824 1831 IEEE80211_IFACE_ITER_NORMAL,
fc6971d4
JM		 1832 hwsim_send_nullfunc_no_ps,
1833 data);
1834 }
1835
1836 return 0;
1837}
1838
1839DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
1840 "%llu\n");
1841
1842
73606d00
DW		 1843static int hwsim_fops_group_read(void *dat, u64 *val)
1844{
1845 struct mac80211_hwsim_data *data = dat;
1846 *val = data->group;
1847 return 0;
1848}
1849
1850static int hwsim_fops_group_write(void *dat, u64 val)
1851{
1852 struct mac80211_hwsim_data *data = dat;
1853 data->group = val;
1854 return 0;
1855}
1856
1857DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
1858 hwsim_fops_group_read, hwsim_fops_group_write,
1859 "%llx\n");
1860
f483ad25 1861static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(
7882513b
JL		 1862 struct mac_address *addr)
1863{
1864 struct mac80211_hwsim_data *data;
1865 bool _found = false;
1866
1867 spin_lock_bh(&hwsim_radio_lock);
1868 list_for_each_entry(data, &hwsim_radios, list) {
1869 if (memcmp(data->addresses[1].addr, addr,
1870 sizeof(struct mac_address)) == 0) {
1871 _found = true;
1872 break;
1873 }
1874 }
1875 spin_unlock_bh(&hwsim_radio_lock);
1876
1877 if (!_found)
1878 return NULL;
1879
1880 return data;
1881}
1882
1883static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
1884 struct genl_info *info)
1885{
1886
1887 struct ieee80211_hdr *hdr;
1888 struct mac80211_hwsim_data *data2;
1889 struct ieee80211_tx_info *txi;
1890 struct hwsim_tx_rate *tx_attempts;
d0f718c1 1891 unsigned long ret_skb_ptr;
7882513b
JL		 1892 struct sk_buff *skb, *tmp;
1893 struct mac_address *src;
1894 unsigned int hwsim_flags;
1895
1896 int i;
1897 bool found = false;
1898
1899 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
1900 !info->attrs[HWSIM_ATTR_FLAGS] ||
1901 !info->attrs[HWSIM_ATTR_COOKIE] ||
1902 !info->attrs[HWSIM_ATTR_TX_INFO])
1903 goto out;
1904
1905 src = (struct mac_address *)nla_data(
1906 info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
1907 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
1908
d0f718c1 1909 ret_skb_ptr = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
7882513b
JL		 1910
1911 data2 = get_hwsim_data_ref_from_addr(src);
1912
1913 if (data2 == NULL)
1914 goto out;
1915
1916 /* look for the skb matching the cookie passed back from user */
1917 skb_queue_walk_safe(&data2->pending, skb, tmp) {
d0f718c1 1918 if ((unsigned long)skb == ret_skb_ptr) {
7882513b
JL		 1919 skb_unlink(skb, &data2->pending);
1920 found = true;
1921 break;
1922 }
1923 }
1924
1925 /* not found */
1926 if (!found)
1927 goto out;
1928
1929 /* Tx info received because the frame was broadcasted on user space,
1930 so we get all the necessary info: tx attempts and skb control buff */
1931
1932 tx_attempts = (struct hwsim_tx_rate *)nla_data(
1933 info->attrs[HWSIM_ATTR_TX_INFO]);
1934
1935 /* now send back TX status */
1936 txi = IEEE80211_SKB_CB(skb);
1937
7882513b
JL		 1938 ieee80211_tx_info_clear_status(txi);
1939
1940 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
1941 txi->status.rates[i].idx = tx_attempts[i].idx;
1942 txi->status.rates[i].count = tx_attempts[i].count;
1943 /*txi->status.rates[i].flags = 0;*/
1944 }
1945
1946 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
1947
1948 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
1949 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
1950 if (skb->len >= 16) {
1951 hdr = (struct ieee80211_hdr *) skb->data;
e8261171
JB		 1952 mac80211_hwsim_monitor_ack(txi->rate_driver_data[0],
1953 hdr->addr2);
7882513b 1954 }
06cf5c4c 1955 txi->flags |= IEEE80211_TX_STAT_ACK;
7882513b
JL		 1956 }
1957 ieee80211_tx_status_irqsafe(data2->hw, skb);
1958 return 0;
1959out:
1960 return -EINVAL;
1961
1962}
1963
1964static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
1965 struct genl_info *info)
1966{
1967
e8261171 1968 struct mac80211_hwsim_data *data2;
7882513b
JL		 1969 struct ieee80211_rx_status rx_status;
1970 struct mac_address *dst;
1971 int frame_data_len;
1972 char *frame_data;
1973 struct sk_buff *skb = NULL;
1974
1975 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
e8261171
JB		 1976 !info->attrs[HWSIM_ATTR_FRAME] ||
1977 !info->attrs[HWSIM_ATTR_RX_RATE] ||
1978 !info->attrs[HWSIM_ATTR_SIGNAL])
7882513b
JL		 1979 goto out;
1980
1981 dst = (struct mac_address *)nla_data(
1982 info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
1983
1984 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
1985 frame_data = (char *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
1986
1987 /* Allocate new skb here */
1988 skb = alloc_skb(frame_data_len, GFP_KERNEL);
1989 if (skb == NULL)
1990 goto err;
1991
1992 if (frame_data_len <= IEEE80211_MAX_DATA_LEN) {
1993 /* Copy the data */
1994 memcpy(skb_put(skb, frame_data_len), frame_data,
1995 frame_data_len);
1996 } else
1997 goto err;
1998
1999 data2 = get_hwsim_data_ref_from_addr(dst);
2000
2001 if (data2 == NULL)
2002 goto out;
2003
2004 /* check if radio is configured properly */
2005
e8261171 2006 if (data2->idle || !data2->started)
7882513b
JL		 2007 goto out;
2008
2009 /*A frame is received from user space*/
2010 memset(&rx_status, 0, sizeof(rx_status));
2011 rx_status.freq = data2->channel->center_freq;
2012 rx_status.band = data2->channel->band;
2013 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
2014 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
2015
2016 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
2017 ieee80211_rx_irqsafe(data2->hw, skb);
2018
2019 return 0;
2020err:
c393862f 2021 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 2022 goto out;
2023out:
2024 dev_kfree_skb(skb);
2025 return -EINVAL;
2026}
2027
2028static int hwsim_register_received_nl(struct sk_buff *skb_2,
2029 struct genl_info *info)
2030{
2031 if (info == NULL)
2032 goto out;
2033
15e47304 2034 wmediumd_portid = info->snd_portid;
7882513b
JL		 2035
2036 printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
15e47304 2037 "switching to wmediumd mode with pid %d\n", info->snd_portid);
7882513b
JL		 2038
2039 return 0;
2040out:
c393862f 2041 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 2042 return -EINVAL;
2043}
2044
2045/* Generic Netlink operations array */
2046static struct genl_ops hwsim_ops[] = {
2047 {
2048 .cmd = HWSIM_CMD_REGISTER,
2049 .policy = hwsim_genl_policy,
2050 .doit = hwsim_register_received_nl,
2051 .flags = GENL_ADMIN_PERM,
2052 },
2053 {
2054 .cmd = HWSIM_CMD_FRAME,
2055 .policy = hwsim_genl_policy,
2056 .doit = hwsim_cloned_frame_received_nl,
2057 },
2058 {
2059 .cmd = HWSIM_CMD_TX_INFO_FRAME,
2060 .policy = hwsim_genl_policy,
2061 .doit = hwsim_tx_info_frame_received_nl,
2062 },
2063};
2064
2065static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
2066 unsigned long state,
2067 void *_notify)
2068{
2069 struct netlink_notify *notify = _notify;
2070
2071 if (state != NETLINK_URELEASE)
2072 return NOTIFY_DONE;
2073
15e47304 2074 if (notify->portid == wmediumd_portid) {
7882513b
JL		 2075 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
2076 " socket, switching to perfect channel medium\n");
15e47304 2077 wmediumd_portid = 0;
7882513b
JL		 2078 }
2079 return NOTIFY_DONE;
2080
2081}
2082
2083static struct notifier_block hwsim_netlink_notifier = {
2084 .notifier_call = mac80211_hwsim_netlink_notify,
2085};
2086
2087static int hwsim_init_netlink(void)
2088{
2089 int rc;
e8261171
JB		 2090
2091 /* userspace test API hasn't been adjusted for multi-channel */
2092 if (channels > 1)
2093 return 0;
2094
7882513b
JL		 2095 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
2096
7882513b
JL		 2097 rc = genl_register_family_with_ops(&hwsim_genl_family,
2098 hwsim_ops, ARRAY_SIZE(hwsim_ops));
2099 if (rc)
2100 goto failure;
2101
2102 rc = netlink_register_notifier(&hwsim_netlink_notifier);
2103 if (rc)
2104 goto failure;
2105
2106 return 0;
2107
2108failure:
c393862f 2109 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 2110 return -EINVAL;
2111}
2112
2113static void hwsim_exit_netlink(void)
2114{
2115 int ret;
2116
e8261171
JB		 2117 /* userspace test API hasn't been adjusted for multi-channel */
2118 if (channels > 1)
2119 return;
2120
7882513b
JL		 2121 printk(KERN_INFO "mac80211_hwsim: closing netlink\n");
2122 /* unregister the notifier */
2123 netlink_unregister_notifier(&hwsim_netlink_notifier);
2124 /* unregister the family */
2125 ret = genl_unregister_family(&hwsim_genl_family);
2126 if (ret)
2127 printk(KERN_DEBUG "mac80211_hwsim: "
2128 "unregister family %i\n", ret);
2129}
2130
1ae2fc25
JB		 2131static const struct ieee80211_iface_limit hwsim_if_limits[] = {
2132 { .max = 1, .types = BIT(NL80211_IFTYPE_ADHOC) },
2133 { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) |
2134 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2135#ifdef CONFIG_MAC80211_MESH
2136 BIT(NL80211_IFTYPE_MESH_POINT) |
2137#endif
2138 BIT(NL80211_IFTYPE_AP) |
2139 BIT(NL80211_IFTYPE_P2P_GO) },
8b3d1cc2 2140 { .max = 1, .types = BIT(NL80211_IFTYPE_P2P_DEVICE) },
1ae2fc25
JB		 2141};
2142
e8261171 2143static struct ieee80211_iface_combination hwsim_if_comb = {
1ae2fc25
JB		 2144 .limits = hwsim_if_limits,
2145 .n_limits = ARRAY_SIZE(hwsim_if_limits),
2146 .max_interfaces = 2048,
2147 .num_different_channels = 1,
2148};
2149
acc1e7a3
JM		 2150static int __init init_mac80211_hwsim(void)
2151{
2152 int i, err = 0;
2153 u8 addr[ETH_ALEN];
2154 struct mac80211_hwsim_data *data;
2155 struct ieee80211_hw *hw;
22cad735 2156 enum ieee80211_band band;
acc1e7a3 2157
0e057d73 2158 if (radios < 1 || radios > 100)
acc1e7a3
JM		 2159 return -EINVAL;
2160
e8261171
JB		 2161 if (channels < 1)
2162 return -EINVAL;
2163
2164 if (channels > 1) {
2165 hwsim_if_comb.num_different_channels = channels;
69068036 2166 mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan;
e8261171
JB		 2167 mac80211_hwsim_ops.cancel_hw_scan =
2168 mac80211_hwsim_cancel_hw_scan;
f74cb0f7
LR		 2169 mac80211_hwsim_ops.sw_scan_start = NULL;
2170 mac80211_hwsim_ops.sw_scan_complete = NULL;
e8261171
JB		 2171 mac80211_hwsim_ops.remain_on_channel =
2172 mac80211_hwsim_roc;
2173 mac80211_hwsim_ops.cancel_remain_on_channel =
2174 mac80211_hwsim_croc;
2175 mac80211_hwsim_ops.add_chanctx =
2176 mac80211_hwsim_add_chanctx;
2177 mac80211_hwsim_ops.remove_chanctx =
2178 mac80211_hwsim_remove_chanctx;
2179 mac80211_hwsim_ops.change_chanctx =
2180 mac80211_hwsim_change_chanctx;
2181 mac80211_hwsim_ops.assign_vif_chanctx =
2182 mac80211_hwsim_assign_vif_chanctx;
2183 mac80211_hwsim_ops.unassign_vif_chanctx =
2184 mac80211_hwsim_unassign_vif_chanctx;
f74cb0f7 2185 }
69068036 2186
0e057d73
JB		 2187 spin_lock_init(&hwsim_radio_lock);
2188 INIT_LIST_HEAD(&hwsim_radios);
acc1e7a3
JM		 2189
2190 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
0e057d73 2191 if (IS_ERR(hwsim_class))
acc1e7a3 2192 return PTR_ERR(hwsim_class);
acc1e7a3
JM		 2193
2194 memset(addr, 0, ETH_ALEN);
2195 addr[0] = 0x02;
2196
0e057d73 2197 for (i = 0; i < radios; i++) {
acc1e7a3
JM		 2198 printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
2199 i);
2200 hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);
0e057d73 2201 if (!hw) {
acc1e7a3
JM		 2202 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
2203 "failed\n");
2204 err = -ENOMEM;
2205 goto failed;
2206 }
acc1e7a3 2207 data = hw->priv;
0e057d73
JB		 2208 data->hw = hw;
2209
6e05d6c4
GKH		 2210 data->dev = device_create(hwsim_class, NULL, 0, hw,
2211 "hwsim%d", i);
acc1e7a3 2212 if (IS_ERR(data->dev)) {
e800f17c 2213 printk(KERN_DEBUG
6e05d6c4 2214 "mac80211_hwsim: device_create "
acc1e7a3
JM		 2215 "failed (%ld)\n", PTR_ERR(data->dev));
2216 err = -ENOMEM;
3a33cc10 2217 goto failed_drvdata;
acc1e7a3
JM		 2218 }
2219 data->dev->driver = &mac80211_hwsim_driver;
7882513b 2220 skb_queue_head_init(&data->pending);
acc1e7a3
JM		 2221
2222 SET_IEEE80211_DEV(hw, data->dev);
2223 addr[3] = i >> 8;
2224 addr[4] = i;
ef15aac6
JB		 2225 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
2226 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
2227 data->addresses[1].addr[0] |= 0x40;
2228 hw->wiphy->n_addresses = 2;
2229 hw->wiphy->addresses = data->addresses;
acc1e7a3 2230
1ae2fc25
JB		 2231 hw->wiphy->iface_combinations = &hwsim_if_comb;
2232 hw->wiphy->n_iface_combinations = 1;
2233
e8261171 2234 if (channels > 1) {
8223d2f5
JB		 2235 hw->wiphy->max_scan_ssids = 255;
2236 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
e8261171 2237 hw->wiphy->max_remain_on_channel_duration = 1000;
8223d2f5
JB		 2238 }
2239
e8261171
JB		 2240 INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
2241 INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
2242
acc1e7a3 2243 hw->channel_change_time = 1;
e8261171
JB		 2244 hw->queues = 5;
2245 hw->offchannel_tx_hw_queue = 4;
f59ac048
LR		 2246 hw->wiphy->interface_modes =
2247 BIT(NL80211_IFTYPE_STATION) |
55b39619 2248 BIT(NL80211_IFTYPE_AP) |
2ca27bcf
JB		 2249 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2250 BIT(NL80211_IFTYPE_P2P_GO) |
2b2d7795 2251 BIT(NL80211_IFTYPE_ADHOC) |
8b3d1cc2
JB		 2252 BIT(NL80211_IFTYPE_MESH_POINT) |
2253 BIT(NL80211_IFTYPE_P2P_DEVICE);
acc1e7a3 2254
4b14c96d 2255 hw->flags = IEEE80211_HW_MFP_CAPABLE |
0f78231b
JB		 2256 IEEE80211_HW_SIGNAL_DBM |
2257 IEEE80211_HW_SUPPORTS_STATIC_SMPS |
a75b4363 2258 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
4b6f1dd6 2259 IEEE80211_HW_AMPDU_AGGREGATION |
e8261171
JB		 2260 IEEE80211_HW_WANT_MONITOR_VIF |
2261 IEEE80211_HW_QUEUE_CONTROL;
fa77533e 2262
81ddbb5c
JB		 2263 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2264 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
43bc3e89 2265
8aa21e6f
JB		 2266 /* ask mac80211 to reserve space for magic */
2267 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
81c06523 2268 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
93c78c5d 2269 hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
8aa21e6f 2270
22cad735
LR		 2271 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
2272 sizeof(hwsim_channels_2ghz));
2273 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
2274 sizeof(hwsim_channels_5ghz));
acc1e7a3 2275 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
22cad735
LR		 2276
2277 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
2278 struct ieee80211_supported_band *sband = &data->bands[band];
2279 switch (band) {
2280 case IEEE80211_BAND_2GHZ:
2281 sband->channels = data->channels_2ghz;
2282 sband->n_channels =
2283 ARRAY_SIZE(hwsim_channels_2ghz);
d130eb49
JB		 2284 sband->bitrates = data->rates;
2285 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
22cad735
LR		 2286 break;
2287 case IEEE80211_BAND_5GHZ:
2288 sband->channels = data->channels_5ghz;
2289 sband->n_channels =
2290 ARRAY_SIZE(hwsim_channels_5ghz);
d130eb49
JB		 2291 sband->bitrates = data->rates + 4;
2292 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
22cad735
LR		 2293 break;
2294 default:
1b083ea4 2295 continue;
22cad735
LR		 2296 }
2297
22cad735
LR		 2298 sband->ht_cap.ht_supported = true;
2299 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
2300 IEEE80211_HT_CAP_GRN_FLD |
2301 IEEE80211_HT_CAP_SGI_40 |
2302 IEEE80211_HT_CAP_DSSSCCK40;
2303 sband->ht_cap.ampdu_factor = 0x3;
2304 sband->ht_cap.ampdu_density = 0x6;
2305 memset(&sband->ht_cap.mcs, 0,
2306 sizeof(sband->ht_cap.mcs));
2307 sband->ht_cap.mcs.rx_mask[0] = 0xff;
2308 sband->ht_cap.mcs.rx_mask[1] = 0xff;
2309 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2310
2311 hw->wiphy->bands[band] = sband;
b296005c
JB		 2312
2313 if (channels == 1)
2314 continue;
2315
2316 sband->vht_cap.vht_supported = true;
2317 sband->vht_cap.cap =
2318 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
2319 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
2320 IEEE80211_VHT_CAP_RXLDPC |
2321 IEEE80211_VHT_CAP_SHORT_GI_80 |
2322 IEEE80211_VHT_CAP_SHORT_GI_160 |
2323 IEEE80211_VHT_CAP_TXSTBC |
2324 IEEE80211_VHT_CAP_RXSTBC_1 |
2325 IEEE80211_VHT_CAP_RXSTBC_2 |
2326 IEEE80211_VHT_CAP_RXSTBC_3 |
2327 IEEE80211_VHT_CAP_RXSTBC_4 |
01331040 2328 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
b296005c
JB		 2329 sband->vht_cap.vht_mcs.rx_mcs_map =
2330 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_8 << 0 |
2331 IEEE80211_VHT_MCS_SUPPORT_0_8 << 2 |
2332 IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
2333 IEEE80211_VHT_MCS_SUPPORT_0_8 << 6 |
2334 IEEE80211_VHT_MCS_SUPPORT_0_8 << 8 |
2335 IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
2336 IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
2337 IEEE80211_VHT_MCS_SUPPORT_0_8 << 14);
2338 sband->vht_cap.vht_mcs.tx_mcs_map =
2339 sband->vht_cap.vht_mcs.rx_mcs_map;
22cad735 2340 }
73606d00
DW		 2341 /* By default all radios are belonging to the first group */
2342 data->group = 1;
f74cb0f7 2343 mutex_init(&data->mutex);
acc1e7a3 2344
7882513b
JL		 2345 /* Enable frame retransmissions for lossy channels */
2346 hw->max_rates = 4;
2347 hw->max_rate_tries = 11;
2348
4a5af9c2
LR		 2349 /* Work to be done prior to ieee80211_register_hw() */
2350 switch (regtest) {
2351 case HWSIM_REGTEST_DISABLED:
2352 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
2353 case HWSIM_REGTEST_DRIVER_REG_ALL:
2354 case HWSIM_REGTEST_DIFF_COUNTRY:
2355 /*
2356 * Nothing to be done for driver regulatory domain
2357 * hints prior to ieee80211_register_hw()
2358 */
2359 break;
2360 case HWSIM_REGTEST_WORLD_ROAM:
2361 if (i == 0) {
5be83de5 2362 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 2363 wiphy_apply_custom_regulatory(hw->wiphy,
2364 &hwsim_world_regdom_custom_01);
2365 }
2366 break;
2367 case HWSIM_REGTEST_CUSTOM_WORLD:
5be83de5 2368 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 2369 wiphy_apply_custom_regulatory(hw->wiphy,
2370 &hwsim_world_regdom_custom_01);
2371 break;
2372 case HWSIM_REGTEST_CUSTOM_WORLD_2:
2373 if (i == 0) {
5be83de5 2374 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 2375 wiphy_apply_custom_regulatory(hw->wiphy,
2376 &hwsim_world_regdom_custom_01);
2377 } else if (i == 1) {
5be83de5 2378 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 2379 wiphy_apply_custom_regulatory(hw->wiphy,
2380 &hwsim_world_regdom_custom_02);
2381 }
2382 break;
2383 case HWSIM_REGTEST_STRICT_ALL:
5be83de5 2384 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
4a5af9c2
LR		 2385 break;
2386 case HWSIM_REGTEST_STRICT_FOLLOW:
2387 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
2388 if (i == 0)
5be83de5 2389 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
4a5af9c2
LR		 2390 break;
2391 case HWSIM_REGTEST_ALL:
2392 if (i == 0) {
5be83de5 2393 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 2394 wiphy_apply_custom_regulatory(hw->wiphy,
2395 &hwsim_world_regdom_custom_01);
2396 } else if (i == 1) {
5be83de5 2397 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 2398 wiphy_apply_custom_regulatory(hw->wiphy,
2399 &hwsim_world_regdom_custom_02);
2400 } else if (i == 4)
5be83de5 2401 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
4a5af9c2
LR		 2402 break;
2403 default:
2404 break;
2405 }
2406
98dfaa57
LR		 2407 /* give the regulatory workqueue a chance to run */
2408 if (regtest)
2409 schedule_timeout_interruptible(1);
acc1e7a3
JM		 2410 err = ieee80211_register_hw(hw);
2411 if (err < 0) {
2412 printk(KERN_DEBUG "mac80211_hwsim: "
2413 "ieee80211_register_hw failed (%d)\n", err);
3a33cc10 2414 goto failed_hw;
acc1e7a3
JM		 2415 }
2416
4a5af9c2
LR		 2417 /* Work to be done after to ieee80211_register_hw() */
2418 switch (regtest) {
2419 case HWSIM_REGTEST_WORLD_ROAM:
2420 case HWSIM_REGTEST_DISABLED:
2421 break;
2422 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
2423 if (!i)
2424 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2425 break;
2426 case HWSIM_REGTEST_DRIVER_REG_ALL:
2427 case HWSIM_REGTEST_STRICT_ALL:
2428 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2429 break;
2430 case HWSIM_REGTEST_DIFF_COUNTRY:
2431 if (i < ARRAY_SIZE(hwsim_alpha2s))
2432 regulatory_hint(hw->wiphy, hwsim_alpha2s[i]);
2433 break;
2434 case HWSIM_REGTEST_CUSTOM_WORLD:
2435 case HWSIM_REGTEST_CUSTOM_WORLD_2:
2436 /*
2437 * Nothing to be done for custom world regulatory
2438 * domains after to ieee80211_register_hw
2439 */
2440 break;
2441 case HWSIM_REGTEST_STRICT_FOLLOW:
2442 if (i == 0)
2443 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2444 break;
2445 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
2446 if (i == 0)
2447 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2448 else if (i == 1)
2449 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
2450 break;
2451 case HWSIM_REGTEST_ALL:
2452 if (i == 2)
2453 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2454 else if (i == 3)
2455 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
2456 else if (i == 4)
2457 regulatory_hint(hw->wiphy, hwsim_alpha2s[2]);
2458 break;
2459 default:
2460 break;
2461 }
2462
c96c31e4
JP		 2463 wiphy_debug(hw->wiphy, "hwaddr %pm registered\n",
2464 hw->wiphy->perm_addr);
acc1e7a3 2465
fc6971d4
JM		 2466 data->debugfs = debugfs_create_dir("hwsim",
2467 hw->wiphy->debugfsdir);
2468 data->debugfs_ps = debugfs_create_file("ps", 0666,
2469 data->debugfs, data,
2470 &hwsim_fops_ps);
73606d00
DW		 2471 data->debugfs_group = debugfs_create_file("group", 0666,
2472 data->debugfs, data,
2473 &hwsim_fops_group);
fc6971d4 2474
01e59e46
TP		 2475 tasklet_hrtimer_init(&data->beacon_timer,
2476 mac80211_hwsim_beacon,
2477 CLOCK_REALTIME, HRTIMER_MODE_ABS);
0e057d73
JB		 2478
2479 list_add_tail(&data->list, &hwsim_radios);
acc1e7a3
JM		 2480 }
2481
2482 hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
2483 if (hwsim_mon == NULL)
2484 goto failed;
2485
7882513b
JL		 2486 rtnl_lock();
2487
2488 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
3a33cc10 2489 if (err < 0)
acc1e7a3 2490 goto failed_mon;
3a33cc10 2491
7882513b
JL		 2492
2493 err = register_netdevice(hwsim_mon);
2494 if (err < 0)
2495 goto failed_mon;
2496
2497 rtnl_unlock();
2498
2499 err = hwsim_init_netlink();
2500 if (err < 0)
2501 goto failed_nl;
2502
acc1e7a3
JM		 2503 return 0;
2504
7882513b
JL		 2505failed_nl:
2506 printk(KERN_DEBUG "mac_80211_hwsim: failed initializing netlink\n");
2507 return err;
2508
acc1e7a3
JM		 2509failed_mon:
2510 rtnl_unlock();
2511 free_netdev(hwsim_mon);
3a33cc10
IS		 2512 mac80211_hwsim_free();
2513 return err;
acc1e7a3 2514
3a33cc10
IS		 2515failed_hw:
2516 device_unregister(data->dev);
2517failed_drvdata:
2518 ieee80211_free_hw(hw);
acc1e7a3
JM		 2519failed:
2520 mac80211_hwsim_free();
2521 return err;
2522}
f8fffc7e 2523module_init(init_mac80211_hwsim);
acc1e7a3
JM		 2524
2525static void __exit exit_mac80211_hwsim(void)
2526{
0e057d73 2527 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
acc1e7a3 2528
7882513b
JL		 2529 hwsim_exit_netlink();
2530
acc1e7a3 2531 mac80211_hwsim_free();
5d416351 2532 unregister_netdev(hwsim_mon);
acc1e7a3 2533}
acc1e7a3 2534module_exit(exit_mac80211_hwsim);
Linux 6.x block layer and io_uring tree(s)