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mac80211_hwsim: Fix radiotap header for ACK frames
[deliverable/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;
0bb861e6 170 bool bcn_en;
fc6971d4 171 u16 aid;
8aa21e6f
JB		 172};
173
174#define HWSIM_VIF_MAGIC 0x69537748
175
176static inline void hwsim_check_magic(struct ieee80211_vif *vif)
177{
178 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
e8261171
JB		 179 WARN(vp->magic != HWSIM_VIF_MAGIC,
180 "Invalid VIF (%p) magic %#x, %pM, %d/%d\n",
181 vif, vp->magic, vif->addr, vif->type, vif->p2p);
8aa21e6f
JB		 182}
183
184static inline void hwsim_set_magic(struct ieee80211_vif *vif)
185{
186 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
187 vp->magic = HWSIM_VIF_MAGIC;
188}
189
190static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
191{
192 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
193 vp->magic = 0;
194}
acc1e7a3 195
81c06523
JB		 196struct hwsim_sta_priv {
197 u32 magic;
198};
199
e8261171 200#define HWSIM_STA_MAGIC 0x6d537749
81c06523
JB		 201
202static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
203{
204 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
5d6924ea 205 WARN_ON(sp->magic != HWSIM_STA_MAGIC);
81c06523
JB		 206}
207
208static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
209{
210 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
5d6924ea 211 sp->magic = HWSIM_STA_MAGIC;
81c06523
JB		 212}
213
214static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
215{
216 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
217 sp->magic = 0;
218}
219
e8261171
JB		 220struct hwsim_chanctx_priv {
221 u32 magic;
222};
223
224#define HWSIM_CHANCTX_MAGIC 0x6d53774a
225
226static inline void hwsim_check_chanctx_magic(struct ieee80211_chanctx_conf *c)
227{
228 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
229 WARN_ON(cp->magic != HWSIM_CHANCTX_MAGIC);
230}
231
232static inline void hwsim_set_chanctx_magic(struct ieee80211_chanctx_conf *c)
233{
234 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
235 cp->magic = HWSIM_CHANCTX_MAGIC;
236}
237
238static inline void hwsim_clear_chanctx_magic(struct ieee80211_chanctx_conf *c)
239{
240 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
241 cp->magic = 0;
242}
243
acc1e7a3
JM		 244static struct class *hwsim_class;
245
acc1e7a3
JM		 246static struct net_device *hwsim_mon; /* global monitor netdev */
247
22cad735
LR		 248#define CHAN2G(_freq) { \
249 .band = IEEE80211_BAND_2GHZ, \
250 .center_freq = (_freq), \
251 .hw_value = (_freq), \
252 .max_power = 20, \
253}
254
255#define CHAN5G(_freq) { \
256 .band = IEEE80211_BAND_5GHZ, \
257 .center_freq = (_freq), \
258 .hw_value = (_freq), \
259 .max_power = 20, \
260}
261
262static const struct ieee80211_channel hwsim_channels_2ghz[] = {
263 CHAN2G(2412), /* Channel 1 */
264 CHAN2G(2417), /* Channel 2 */
265 CHAN2G(2422), /* Channel 3 */
266 CHAN2G(2427), /* Channel 4 */
267 CHAN2G(2432), /* Channel 5 */
268 CHAN2G(2437), /* Channel 6 */
269 CHAN2G(2442), /* Channel 7 */
270 CHAN2G(2447), /* Channel 8 */
271 CHAN2G(2452), /* Channel 9 */
272 CHAN2G(2457), /* Channel 10 */
273 CHAN2G(2462), /* Channel 11 */
274 CHAN2G(2467), /* Channel 12 */
275 CHAN2G(2472), /* Channel 13 */
276 CHAN2G(2484), /* Channel 14 */
277};
acc1e7a3 278
22cad735
LR		 279static const struct ieee80211_channel hwsim_channels_5ghz[] = {
280 CHAN5G(5180), /* Channel 36 */
281 CHAN5G(5200), /* Channel 40 */
282 CHAN5G(5220), /* Channel 44 */
283 CHAN5G(5240), /* Channel 48 */
284
285 CHAN5G(5260), /* Channel 52 */
286 CHAN5G(5280), /* Channel 56 */
287 CHAN5G(5300), /* Channel 60 */
288 CHAN5G(5320), /* Channel 64 */
289
290 CHAN5G(5500), /* Channel 100 */
291 CHAN5G(5520), /* Channel 104 */
292 CHAN5G(5540), /* Channel 108 */
293 CHAN5G(5560), /* Channel 112 */
294 CHAN5G(5580), /* Channel 116 */
295 CHAN5G(5600), /* Channel 120 */
296 CHAN5G(5620), /* Channel 124 */
297 CHAN5G(5640), /* Channel 128 */
298 CHAN5G(5660), /* Channel 132 */
299 CHAN5G(5680), /* Channel 136 */
300 CHAN5G(5700), /* Channel 140 */
301
302 CHAN5G(5745), /* Channel 149 */
303 CHAN5G(5765), /* Channel 153 */
304 CHAN5G(5785), /* Channel 157 */
305 CHAN5G(5805), /* Channel 161 */
306 CHAN5G(5825), /* Channel 165 */
acc1e7a3
JM		 307};
308
309static const struct ieee80211_rate hwsim_rates[] = {
310 { .bitrate = 10 },
311 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
312 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
313 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
314 { .bitrate = 60 },
315 { .bitrate = 90 },
316 { .bitrate = 120 },
317 { .bitrate = 180 },
318 { .bitrate = 240 },
319 { .bitrate = 360 },
320 { .bitrate = 480 },
321 { .bitrate = 540 }
322};
323
0e057d73
JB		 324static spinlock_t hwsim_radio_lock;
325static struct list_head hwsim_radios;
326
acc1e7a3 327struct mac80211_hwsim_data {
0e057d73
JB		 328 struct list_head list;
329 struct ieee80211_hw *hw;
acc1e7a3 330 struct device *dev;
1b083ea4 331 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
22cad735
LR		 332 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
333 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
acc1e7a3
JM		 334 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
335
ef15aac6
JB		 336 struct mac_address addresses[2];
337
e8261171
JB		 338 struct ieee80211_channel *tmp_chan;
339 struct delayed_work roc_done;
340 struct delayed_work hw_scan;
341 struct cfg80211_scan_request *hw_scan_request;
342 struct ieee80211_vif *hw_scan_vif;
343 int scan_chan_idx;
344
acc1e7a3 345 struct ieee80211_channel *channel;
01e59e46 346 u64 beacon_int /* beacon interval in us */;
acc1e7a3 347 unsigned int rx_filter;
f74cb0f7
LR		 348 bool started, idle, scanning;
349 struct mutex mutex;
01e59e46 350 struct tasklet_hrtimer beacon_timer;
fc6971d4
JM		 351 enum ps_mode {
352 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
353 } ps;
354 bool ps_poll_pending;
355 struct dentry *debugfs;
356 struct dentry *debugfs_ps;
73606d00 357
7882513b 358 struct sk_buff_head pending; /* packets pending */
73606d00
DW		 359 /*
360 * Only radios in the same group can communicate together (the
361 * channel has to match too). Each bit represents a group. A
362 * radio can be in more then one group.
363 */
364 u64 group;
365 struct dentry *debugfs_group;
bdd7bd16
BG		 366
367 int power_level;
2f40b940
JC		 368
369 /* difference between this hw's clock and the real clock, in usecs */
45034bfb 370 s64 tsf_offset;
c51f8783 371 s64 bcn_delta;
b66851c3
TP		 372 /* absolute beacon transmission time. Used to cover up "tx" delay. */
373 u64 abs_bcn_ts;
acc1e7a3
JM		 374};
375
376
377struct hwsim_radiotap_hdr {
378 struct ieee80211_radiotap_header hdr;
2f40b940 379 __le64 rt_tsft;
acc1e7a3
JM		 380 u8 rt_flags;
381 u8 rt_rate;
382 __le16 rt_channel;
383 __le16 rt_chbitmask;
ba2d3587 384} __packed;
acc1e7a3 385
76a56eb3
JM		 386struct hwsim_radiotap_ack_hdr {
387 struct ieee80211_radiotap_header hdr;
388 u8 rt_flags;
389 u8 pad;
390 __le16 rt_channel;
391 __le16 rt_chbitmask;
392} __packed;
393
7882513b
JL		 394/* MAC80211_HWSIM netlinf family */
395static struct genl_family hwsim_genl_family = {
396 .id = GENL_ID_GENERATE,
397 .hdrsize = 0,
398 .name = "MAC80211_HWSIM",
399 .version = 1,
400 .maxattr = HWSIM_ATTR_MAX,
401};
402
403/* MAC80211_HWSIM netlink policy */
404
405static struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
406 [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC,
407 .len = 6*sizeof(u8) },
408 [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC,
409 .len = 6*sizeof(u8) },
410 [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
411 .len = IEEE80211_MAX_DATA_LEN },
412 [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
413 [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
414 [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
415 [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC,
416 .len = IEEE80211_TX_MAX_RATES*sizeof(
417 struct hwsim_tx_rate)},
418 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
419};
acc1e7a3 420
d0cf9c0d
SH		 421static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
422 struct net_device *dev)
acc1e7a3
JM		 423{
424 /* TODO: allow packet injection */
425 dev_kfree_skb(skb);
6ed10654 426 return NETDEV_TX_OK;
acc1e7a3
JM		 427}
428
b66851c3
TP		 429static inline u64 mac80211_hwsim_get_tsf_raw(void)
430{
431 return ktime_to_us(ktime_get_real());
432}
433
2f40b940
JC		 434static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
435{
b66851c3 436 u64 now = mac80211_hwsim_get_tsf_raw();
2f40b940
JC		 437 return cpu_to_le64(now + data->tsf_offset);
438}
acc1e7a3 439
12ce8ba3 440static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
b66851c3 441 struct ieee80211_vif *vif)
12ce8ba3
JC		 442{
443 struct mac80211_hwsim_data *data = hw->priv;
444 return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
445}
446
447static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
448 struct ieee80211_vif *vif, u64 tsf)
449{
450 struct mac80211_hwsim_data *data = hw->priv;
45034bfb 451 u64 now = mac80211_hwsim_get_tsf(hw, vif);
c51f8783 452 u32 bcn_int = data->beacon_int;
45034bfb
TP		 453 s64 delta = tsf - now;
454
455 data->tsf_offset += delta;
c51f8783
TP		 456 /* adjust after beaconing with new timestamp at old TBTT */
457 data->bcn_delta = do_div(delta, bcn_int);
12ce8ba3
JC		 458}
459
acc1e7a3 460static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
e8261171
JB		 461 struct sk_buff *tx_skb,
462 struct ieee80211_channel *chan)
acc1e7a3
JM		 463{
464 struct mac80211_hwsim_data *data = hw->priv;
465 struct sk_buff *skb;
466 struct hwsim_radiotap_hdr *hdr;
467 u16 flags;
468 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
469 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
470
471 if (!netif_running(hwsim_mon))
472 return;
473
474 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
475 if (skb == NULL)
476 return;
477
478 hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
479 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
480 hdr->hdr.it_pad = 0;
481 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
f248f105
JM		 482 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
483 (1 << IEEE80211_RADIOTAP_RATE) |
2f40b940 484 (1 << IEEE80211_RADIOTAP_TSFT) |
f248f105 485 (1 << IEEE80211_RADIOTAP_CHANNEL));
2f40b940 486 hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
acc1e7a3
JM		 487 hdr->rt_flags = 0;
488 hdr->rt_rate = txrate->bitrate / 5;
e8261171 489 hdr->rt_channel = cpu_to_le16(chan->center_freq);
acc1e7a3
JM		 490 flags = IEEE80211_CHAN_2GHZ;
491 if (txrate->flags & IEEE80211_RATE_ERP_G)
492 flags |= IEEE80211_CHAN_OFDM;
493 else
494 flags |= IEEE80211_CHAN_CCK;
495 hdr->rt_chbitmask = cpu_to_le16(flags);
496
497 skb->dev = hwsim_mon;
498 skb_set_mac_header(skb, 0);
499 skb->ip_summed = CHECKSUM_UNNECESSARY;
500 skb->pkt_type = PACKET_OTHERHOST;
f248f105 501 skb->protocol = htons(ETH_P_802_2);
acc1e7a3
JM		 502 memset(skb->cb, 0, sizeof(skb->cb));
503 netif_rx(skb);
504}
505
506
e8261171
JB		 507static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
508 const u8 *addr)
6c085227 509{
6c085227 510 struct sk_buff *skb;
76a56eb3 511 struct hwsim_radiotap_ack_hdr *hdr;
6c085227
JM		 512 u16 flags;
513 struct ieee80211_hdr *hdr11;
514
515 if (!netif_running(hwsim_mon))
516 return;
517
518 skb = dev_alloc_skb(100);
519 if (skb == NULL)
520 return;
521
76a56eb3 522 hdr = (struct hwsim_radiotap_ack_hdr *) skb_put(skb, sizeof(*hdr));
6c085227
JM		 523 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
524 hdr->hdr.it_pad = 0;
525 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
526 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
527 (1 << IEEE80211_RADIOTAP_CHANNEL));
528 hdr->rt_flags = 0;
76a56eb3 529 hdr->pad = 0;
e8261171 530 hdr->rt_channel = cpu_to_le16(chan->center_freq);
6c085227
JM		 531 flags = IEEE80211_CHAN_2GHZ;
532 hdr->rt_chbitmask = cpu_to_le16(flags);
533
534 hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
535 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
536 IEEE80211_STYPE_ACK);
537 hdr11->duration_id = cpu_to_le16(0);
538 memcpy(hdr11->addr1, addr, ETH_ALEN);
539
540 skb->dev = hwsim_mon;
541 skb_set_mac_header(skb, 0);
542 skb->ip_summed = CHECKSUM_UNNECESSARY;
543 skb->pkt_type = PACKET_OTHERHOST;
544 skb->protocol = htons(ETH_P_802_2);
545 memset(skb->cb, 0, sizeof(skb->cb));
546 netif_rx(skb);
547}
548
549
fc6971d4
JM		 550static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
551 struct sk_buff *skb)
552{
553 switch (data->ps) {
554 case PS_DISABLED:
555 return true;
556 case PS_ENABLED:
557 return false;
558 case PS_AUTO_POLL:
559 /* TODO: accept (some) Beacons by default and other frames only
560 * if pending PS-Poll has been sent */
561 return true;
562 case PS_MANUAL_POLL:
563 /* Allow unicast frames to own address if there is a pending
564 * PS-Poll */
565 if (data->ps_poll_pending &&
566 memcmp(data->hw->wiphy->perm_addr, skb->data + 4,
567 ETH_ALEN) == 0) {
568 data->ps_poll_pending = false;
569 return true;
570 }
571 return false;
572 }
573
574 return true;
575}
576
577
265dc7f0
JM		 578struct mac80211_hwsim_addr_match_data {
579 bool ret;
580 const u8 *addr;
581};
582
583static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
584 struct ieee80211_vif *vif)
585{
586 struct mac80211_hwsim_addr_match_data *md = data;
587 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
588 md->ret = true;
589}
590
591
592static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
593 const u8 *addr)
594{
595 struct mac80211_hwsim_addr_match_data md;
596
597 if (memcmp(addr, data->hw->wiphy->perm_addr, ETH_ALEN) == 0)
598 return true;
599
600 md.ret = false;
601 md.addr = addr;
602 ieee80211_iterate_active_interfaces_atomic(data->hw,
8b2c9824 603 IEEE80211_IFACE_ITER_NORMAL,
265dc7f0
JM		 604 mac80211_hwsim_addr_iter,
605 &md);
606
607 return md.ret;
608}
609
7882513b
JL		 610static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
611 struct sk_buff *my_skb,
15e47304 612 int dst_portid)
7882513b
JL		 613{
614 struct sk_buff *skb;
615 struct mac80211_hwsim_data *data = hw->priv;
616 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
617 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
618 void *msg_head;
619 unsigned int hwsim_flags = 0;
620 int i;
621 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
622
7882513b
JL		 623 if (data->ps != PS_DISABLED)
624 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
625 /* If the queue contains MAX_QUEUE skb's drop some */
626 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
627 /* Droping until WARN_QUEUE level */
628 while (skb_queue_len(&data->pending) >= WARN_QUEUE)
629 skb_dequeue(&data->pending);
630 }
631
58050fce 632 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
7882513b
JL		 633 if (skb == NULL)
634 goto nla_put_failure;
635
636 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
637 HWSIM_CMD_FRAME);
638 if (msg_head == NULL) {
639 printk(KERN_DEBUG "mac80211_hwsim: problem with msg_head\n");
640 goto nla_put_failure;
641 }
642
633c9389
DM		 643 if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
644 sizeof(struct mac_address), data->addresses[1].addr))
645 goto nla_put_failure;
265dc7f0 646
7882513b 647 /* We get the skb->data */
633c9389
DM		 648 if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
649 goto nla_put_failure;
7882513b
JL		 650
651 /* We get the flags for this transmission, and we translate them to
652 wmediumd flags */
653
654 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
655 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
656
657 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
658 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
659
633c9389
DM		 660 if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
661 goto nla_put_failure;
7882513b
JL		 662
663 /* We get the tx control (rate and retries) info*/
664
665 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
666 tx_attempts[i].idx = info->status.rates[i].idx;
667 tx_attempts[i].count = info->status.rates[i].count;
668 }
669
633c9389
DM		 670 if (nla_put(skb, HWSIM_ATTR_TX_INFO,
671 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
672 tx_attempts))
673 goto nla_put_failure;
7882513b
JL		 674
675 /* We create a cookie to identify this skb */
633c9389
DM		 676 if (nla_put_u64(skb, HWSIM_ATTR_COOKIE, (unsigned long) my_skb))
677 goto nla_put_failure;
7882513b
JL		 678
679 genlmsg_end(skb, msg_head);
15e47304 680 genlmsg_unicast(&init_net, skb, dst_portid);
7882513b
JL		 681
682 /* Enqueue the packet */
683 skb_queue_tail(&data->pending, my_skb);
684 return;
685
686nla_put_failure:
c393862f 687 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 688}
689
e8261171
JB		 690static bool hwsim_chans_compat(struct ieee80211_channel *c1,
691 struct ieee80211_channel *c2)
692{
693 if (!c1 || !c2)
694 return false;
695
696 return c1->center_freq == c2->center_freq;
697}
698
699struct tx_iter_data {
700 struct ieee80211_channel *channel;
701 bool receive;
702};
703
704static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
705 struct ieee80211_vif *vif)
706{
707 struct tx_iter_data *data = _data;
708
709 if (!vif->chanctx_conf)
710 return;
711
712 if (!hwsim_chans_compat(data->channel,
4bf88530 713 rcu_dereference(vif->chanctx_conf)->def.chan))
e8261171
JB		 714 return;
715
716 data->receive = true;
717}
718
7882513b 719static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
e8261171
JB		 720 struct sk_buff *skb,
721 struct ieee80211_channel *chan)
acc1e7a3 722{
0e057d73
JB		 723 struct mac80211_hwsim_data *data = hw->priv, *data2;
724 bool ack = false;
e36cfdc9 725 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
acc1e7a3 726 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
e36cfdc9 727 struct ieee80211_rx_status rx_status;
b66851c3 728 u64 now;
acc1e7a3
JM		 729
730 memset(&rx_status, 0, sizeof(rx_status));
f4bda337 731 rx_status.flag |= RX_FLAG_MACTIME_START;
e8261171
JB		 732 rx_status.freq = chan->center_freq;
733 rx_status.band = chan->band;
dad6330d
KB		 734 if (info->control.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) {
735 rx_status.rate_idx =
736 ieee80211_rate_get_vht_mcs(&info->control.rates[0]);
737 rx_status.vht_nss =
738 ieee80211_rate_get_vht_nss(&info->control.rates[0]);
739 rx_status.flag |= RX_FLAG_VHT;
740 } else {
741 rx_status.rate_idx = info->control.rates[0].idx;
742 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
743 rx_status.flag |= RX_FLAG_HT;
744 }
281ed297
JM		 745 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
746 rx_status.flag |= RX_FLAG_40MHZ;
747 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
748 rx_status.flag |= RX_FLAG_SHORT_GI;
4b14c96d 749 /* TODO: simulate real signal strength (and optional packet loss) */
bdd7bd16 750 rx_status.signal = data->power_level - 50;
acc1e7a3 751
fc6971d4
JM		 752 if (data->ps != PS_DISABLED)
753 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
754
90e3012e
JB		 755 /* release the skb's source info */
756 skb_orphan(skb);
c0acf38e 757 skb_dst_drop(skb);
90e3012e
JB		 758 skb->mark = 0;
759 secpath_reset(skb);
760 nf_reset(skb);
761
b66851c3
TP		 762 /*
763 * Get absolute mactime here so all HWs RX at the "same time", and
764 * absolute TX time for beacon mactime so the timestamp matches.
765 * Giving beacons a different mactime than non-beacons looks messy, but
766 * it helps the Toffset be exact and a ~10us mactime discrepancy
767 * probably doesn't really matter.
768 */
769 if (ieee80211_is_beacon(hdr->frame_control) ||
770 ieee80211_is_probe_resp(hdr->frame_control))
771 now = data->abs_bcn_ts;
772 else
773 now = mac80211_hwsim_get_tsf_raw();
774
acc1e7a3 775 /* Copy skb to all enabled radios that are on the current frequency */
0e057d73
JB		 776 spin_lock(&hwsim_radio_lock);
777 list_for_each_entry(data2, &hwsim_radios, list) {
acc1e7a3 778 struct sk_buff *nskb;
e8261171
JB		 779 struct tx_iter_data tx_iter_data = {
780 .receive = false,
781 .channel = chan,
782 };
acc1e7a3 783
0e057d73 784 if (data == data2)
acc1e7a3 785 continue;
0e057d73 786
e8261171
JB		 787 if (!data2->started || (data2->idle && !data2->tmp_chan) ||
788 !hwsim_ps_rx_ok(data2, skb))
acc1e7a3
JM		 789 continue;
790
e8261171
JB		 791 if (!(data->group & data2->group))
792 continue;
793
794 if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
795 !hwsim_chans_compat(chan, data2->channel)) {
796 ieee80211_iterate_active_interfaces_atomic(
8b2c9824
JB		 797 data2->hw, IEEE80211_IFACE_ITER_NORMAL,
798 mac80211_hwsim_tx_iter, &tx_iter_data);
e8261171
JB		 799 if (!tx_iter_data.receive)
800 continue;
801 }
802
90b9e446
JB		 803 /*
804 * reserve some space for our vendor and the normal
805 * radiotap header, since we're copying anyway
806 */
a357d7f9
JB		 807 if (skb->len < PAGE_SIZE && paged_rx) {
808 struct page *page = alloc_page(GFP_ATOMIC);
809
810 if (!page)
811 continue;
812
813 nskb = dev_alloc_skb(128);
814 if (!nskb) {
815 __free_page(page);
816 continue;
817 }
818
819 memcpy(page_address(page), skb->data, skb->len);
820 skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
821 } else {
822 nskb = skb_copy(skb, GFP_ATOMIC);
823 if (!nskb)
824 continue;
825 }
acc1e7a3 826
265dc7f0 827 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
0e057d73 828 ack = true;
f483ad25 829
b66851c3 830 rx_status.mactime = now + data2->tsf_offset;
90b9e446
JB		 831#if 0
832 /*
833 * Don't enable this code by default as the OUI 00:00:00
834 * is registered to Xerox so we shouldn't use it here, it
835 * might find its way into pcap files.
836 * Note that this code requires the headroom in the SKB
837 * that was allocated earlier.
838 */
839 rx_status.vendor_radiotap_oui[0] = 0x00;
840 rx_status.vendor_radiotap_oui[1] = 0x00;
841 rx_status.vendor_radiotap_oui[2] = 0x00;
842 rx_status.vendor_radiotap_subns = 127;
843 /*
844 * Radiotap vendor namespaces can (and should) also be
845 * split into fields by using the standard radiotap
846 * presence bitmap mechanism. Use just BIT(0) here for
847 * the presence bitmap.
848 */
849 rx_status.vendor_radiotap_bitmap = BIT(0);
850 /* We have 8 bytes of (dummy) data */
851 rx_status.vendor_radiotap_len = 8;
852 /* For testing, also require it to be aligned */
853 rx_status.vendor_radiotap_align = 8;
854 /* push the data */
855 memcpy(skb_push(nskb, 8), "ABCDEFGH", 8);
856#endif
857
f1d58c25
JB		 858 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
859 ieee80211_rx_irqsafe(data2->hw, nskb);
acc1e7a3 860 }
0e057d73 861 spin_unlock(&hwsim_radio_lock);
acc1e7a3 862
e36cfdc9
JM		 863 return ack;
864}
865
36323f81
TH		 866static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
867 struct ieee80211_tx_control *control,
868 struct sk_buff *skb)
e36cfdc9 869{
e8261171
JB		 870 struct mac80211_hwsim_data *data = hw->priv;
871 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
872 struct ieee80211_chanctx_conf *chanctx_conf;
873 struct ieee80211_channel *channel;
0e057d73 874 bool ack;
15e47304 875 u32 _portid;
e36cfdc9 876
e8261171 877 if (WARN_ON(skb->len < 10)) {
e36cfdc9 878 /* Should not happen; just a sanity check for addr1 use */
fe0f3cd2 879 ieee80211_free_txskb(hw, skb);
7bb45683 880 return;
e36cfdc9
JM		 881 }
882
e8261171
JB		 883 if (channels == 1) {
884 channel = data->channel;
885 } else if (txi->hw_queue == 4) {
886 channel = data->tmp_chan;
887 } else {
888 chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf);
889 if (chanctx_conf)
4bf88530 890 channel = chanctx_conf->def.chan;
e8261171
JB		 891 else
892 channel = NULL;
893 }
894
895 if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
fe0f3cd2 896 ieee80211_free_txskb(hw, skb);
e8261171
JB		 897 return;
898 }
899
900 if (data->idle && !data->tmp_chan) {
901 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
fe0f3cd2 902 ieee80211_free_txskb(hw, skb);
e8261171
JB		 903 return;
904 }
905
906 if (txi->control.vif)
907 hwsim_check_magic(txi->control.vif);
908 if (control->sta)
909 hwsim_check_sta_magic(control->sta);
910
1eb32179
KB		 911 if (rctbl)
912 ieee80211_get_tx_rates(txi->control.vif, control->sta, skb,
913 txi->control.rates,
914 ARRAY_SIZE(txi->control.rates));
e8261171 915
1eb32179 916 txi->rate_driver_data[0] = channel;
e8261171
JB		 917 mac80211_hwsim_monitor_rx(hw, skb, channel);
918
7882513b 919 /* wmediumd mode check */
15e47304 920 _portid = ACCESS_ONCE(wmediumd_portid);
7882513b 921
15e47304
EB		 922 if (_portid)
923 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
7882513b
JL		 924
925 /* NO wmediumd detected, perfect medium simulation */
e8261171 926 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
7882513b 927
6c085227
JM		 928 if (ack && skb->len >= 16) {
929 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
e8261171 930 mac80211_hwsim_monitor_ack(channel, hdr->addr2);
6c085227 931 }
e36cfdc9 932
e6a9854b 933 ieee80211_tx_info_clear_status(txi);
2a4ffa4c
JC		 934
935 /* frame was transmitted at most favorable rate at first attempt */
936 txi->control.rates[0].count = 1;
937 txi->control.rates[1].idx = -1;
938
e6a9854b
JB		 939 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
940 txi->flags |= IEEE80211_TX_STAT_ACK;
acc1e7a3 941 ieee80211_tx_status_irqsafe(hw, skb);
acc1e7a3
JM		 942}
943
944
945static int mac80211_hwsim_start(struct ieee80211_hw *hw)
946{
947 struct mac80211_hwsim_data *data = hw->priv;
c96c31e4 948 wiphy_debug(hw->wiphy, "%s\n", __func__);
3db1cd5c 949 data->started = true;
acc1e7a3
JM		 950 return 0;
951}
952
953
954static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
955{
956 struct mac80211_hwsim_data *data = hw->priv;
3db1cd5c 957 data->started = false;
01e59e46 958 tasklet_hrtimer_cancel(&data->beacon_timer);
c96c31e4 959 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 960}
961
962
963static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
1ed32e4f 964 struct ieee80211_vif *vif)
acc1e7a3 965{
c96c31e4 966 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 967 __func__, ieee80211_vif_type_p2p(vif),
968 vif->addr);
1ed32e4f 969 hwsim_set_magic(vif);
e8261171
JB		 970
971 vif->cab_queue = 0;
972 vif->hw_queue[IEEE80211_AC_VO] = 0;
973 vif->hw_queue[IEEE80211_AC_VI] = 1;
974 vif->hw_queue[IEEE80211_AC_BE] = 2;
975 vif->hw_queue[IEEE80211_AC_BK] = 3;
976
acc1e7a3
JM		 977 return 0;
978}
979
980
c35d0270
JB		 981static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
982 struct ieee80211_vif *vif,
2ca27bcf
JB		 983 enum nl80211_iftype newtype,
984 bool newp2p)
c35d0270 985{
2ca27bcf 986 newtype = ieee80211_iftype_p2p(newtype, newp2p);
c35d0270
JB		 987 wiphy_debug(hw->wiphy,
988 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
2ca27bcf
JB		 989 __func__, ieee80211_vif_type_p2p(vif),
990 newtype, vif->addr);
c35d0270
JB		 991 hwsim_check_magic(vif);
992
3eb92f6a
JB		 993 /*
994 * interface may change from non-AP to AP in
995 * which case this needs to be set up again
996 */
997 vif->cab_queue = 0;
998
c35d0270
JB		 999 return 0;
1000}
1001
acc1e7a3 1002static void mac80211_hwsim_remove_interface(
1ed32e4f 1003 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
acc1e7a3 1004{
c96c31e4 1005 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 1006 __func__, ieee80211_vif_type_p2p(vif),
1007 vif->addr);
1ed32e4f
JB		 1008 hwsim_check_magic(vif);
1009 hwsim_clear_magic(vif);
acc1e7a3
JM		 1010}
1011
e8261171
JB		 1012static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
1013 struct sk_buff *skb,
1014 struct ieee80211_channel *chan)
1015{
1016 u32 _pid = ACCESS_ONCE(wmediumd_portid);
1017
1eb32179
KB		 1018 if (rctbl) {
1019 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1020 ieee80211_get_tx_rates(txi->control.vif, NULL, skb,
1021 txi->control.rates,
1022 ARRAY_SIZE(txi->control.rates));
1023 }
1024
e8261171
JB		 1025 mac80211_hwsim_monitor_rx(hw, skb, chan);
1026
1027 if (_pid)
1028 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
1029
1030 mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
1031 dev_kfree_skb(skb);
1032}
acc1e7a3
JM		 1033
1034static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
1035 struct ieee80211_vif *vif)
1036{
b66851c3
TP		 1037 struct mac80211_hwsim_data *data = arg;
1038 struct ieee80211_hw *hw = data->hw;
1039 struct ieee80211_tx_info *info;
1040 struct ieee80211_rate *txrate;
1041 struct ieee80211_mgmt *mgmt;
acc1e7a3 1042 struct sk_buff *skb;
acc1e7a3 1043
8aa21e6f
JB		 1044 hwsim_check_magic(vif);
1045
55b39619 1046 if (vif->type != NL80211_IFTYPE_AP &&
2b2d7795
JB		 1047 vif->type != NL80211_IFTYPE_MESH_POINT &&
1048 vif->type != NL80211_IFTYPE_ADHOC)
acc1e7a3
JM		 1049 return;
1050
1051 skb = ieee80211_beacon_get(hw, vif);
1052 if (skb == NULL)
1053 return;
b66851c3 1054 info = IEEE80211_SKB_CB(skb);
1eb32179
KB		 1055 if (rctbl)
1056 ieee80211_get_tx_rates(vif, NULL, skb,
1057 info->control.rates,
1058 ARRAY_SIZE(info->control.rates));
1059
b66851c3
TP		 1060 txrate = ieee80211_get_tx_rate(hw, info);
1061
1062 mgmt = (struct ieee80211_mgmt *) skb->data;
1063 /* fake header transmission time */
1064 data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
1065 mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
1066 data->tsf_offset +
1067 24 * 8 * 10 / txrate->bitrate);
7882513b 1068
e8261171 1069 mac80211_hwsim_tx_frame(hw, skb,
4bf88530 1070 rcu_dereference(vif->chanctx_conf)->def.chan);
acc1e7a3
JM		 1071}
1072
01e59e46
TP		 1073static enum hrtimer_restart
1074mac80211_hwsim_beacon(struct hrtimer *timer)
acc1e7a3 1075{
01e59e46
TP		 1076 struct mac80211_hwsim_data *data =
1077 container_of(timer, struct mac80211_hwsim_data,
1078 beacon_timer.timer);
1079 struct ieee80211_hw *hw = data->hw;
1080 u64 bcn_int = data->beacon_int;
1081 ktime_t next_bcn;
acc1e7a3 1082
4c4c671a 1083 if (!data->started)
01e59e46 1084 goto out;
acc1e7a3 1085
f248f105 1086 ieee80211_iterate_active_interfaces_atomic(
8b2c9824 1087 hw, IEEE80211_IFACE_ITER_NORMAL,
b66851c3 1088 mac80211_hwsim_beacon_tx, data);
acc1e7a3 1089
c51f8783
TP		 1090 /* beacon at new TBTT + beacon interval */
1091 if (data->bcn_delta) {
1092 bcn_int -= data->bcn_delta;
1093 data->bcn_delta = 0;
1094 }
1095
01e59e46
TP		 1096 next_bcn = ktime_add(hrtimer_get_expires(timer),
1097 ns_to_ktime(bcn_int * 1000));
1098 tasklet_hrtimer_start(&data->beacon_timer, next_bcn, HRTIMER_MODE_ABS);
1099out:
1100 return HRTIMER_NORESTART;
acc1e7a3
JM		 1101}
1102
675a0b04
KB		 1103static const char * const hwsim_chanwidths[] = {
1104 [NL80211_CHAN_WIDTH_20_NOHT] = "noht",
1105 [NL80211_CHAN_WIDTH_20] = "ht20",
1106 [NL80211_CHAN_WIDTH_40] = "ht40",
1107 [NL80211_CHAN_WIDTH_80] = "vht80",
1108 [NL80211_CHAN_WIDTH_80P80] = "vht80p80",
1109 [NL80211_CHAN_WIDTH_160] = "vht160",
0aaffa9b 1110};
acc1e7a3 1111
e8975581 1112static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
acc1e7a3
JM		 1113{
1114 struct mac80211_hwsim_data *data = hw->priv;
e8975581 1115 struct ieee80211_conf *conf = &hw->conf;
0f78231b
JB		 1116 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
1117 [IEEE80211_SMPS_AUTOMATIC] = "auto",
1118 [IEEE80211_SMPS_OFF] = "off",
1119 [IEEE80211_SMPS_STATIC] = "static",
1120 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
1121 };
1122
675a0b04
KB		 1123 if (conf->chandef.chan)
1124 wiphy_debug(hw->wiphy,
1125 "%s (freq=%d(%d - %d)/%s idle=%d ps=%d smps=%s)\n",
1126 __func__,
1127 conf->chandef.chan->center_freq,
1128 conf->chandef.center_freq1,
1129 conf->chandef.center_freq2,
1130 hwsim_chanwidths[conf->chandef.width],
1131 !!(conf->flags & IEEE80211_CONF_IDLE),
1132 !!(conf->flags & IEEE80211_CONF_PS),
1133 smps_modes[conf->smps_mode]);
1134 else
1135 wiphy_debug(hw->wiphy,
1136 "%s (freq=0 idle=%d ps=%d smps=%s)\n",
1137 __func__,
1138 !!(conf->flags & IEEE80211_CONF_IDLE),
1139 !!(conf->flags & IEEE80211_CONF_PS),
1140 smps_modes[conf->smps_mode]);
acc1e7a3 1141
70541839
JM		 1142 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1143
675a0b04 1144 data->channel = conf->chandef.chan;
e8261171
JB		 1145
1146 WARN_ON(data->channel && channels > 1);
1147
bdd7bd16 1148 data->power_level = conf->power_level;
4c4c671a 1149 if (!data->started || !data->beacon_int)
01e59e46
TP		 1150 tasklet_hrtimer_cancel(&data->beacon_timer);
1151 else if (!hrtimer_is_queued(&data->beacon_timer.timer)) {
c51f8783
TP		 1152 u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
1153 u32 bcn_int = data->beacon_int;
1154 u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1155
01e59e46 1156 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1157 ns_to_ktime(until_tbtt * 1000),
01e59e46
TP		 1158 HRTIMER_MODE_REL);
1159 }
acc1e7a3
JM		 1160
1161 return 0;
1162}
1163
1164
1165static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
1166 unsigned int changed_flags,
3ac64bee 1167 unsigned int *total_flags,u64 multicast)
acc1e7a3
JM		 1168{
1169 struct mac80211_hwsim_data *data = hw->priv;
1170
c96c31e4 1171 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 1172
1173 data->rx_filter = 0;
1174 if (*total_flags & FIF_PROMISC_IN_BSS)
1175 data->rx_filter |= FIF_PROMISC_IN_BSS;
1176 if (*total_flags & FIF_ALLMULTI)
1177 data->rx_filter |= FIF_ALLMULTI;
1178
1179 *total_flags = data->rx_filter;
1180}
1181
0bb861e6
JM		 1182static void mac80211_hwsim_bcn_en_iter(void *data, u8 *mac,
1183 struct ieee80211_vif *vif)
1184{
1185 unsigned int *count = data;
1186 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1187
1188 if (vp->bcn_en)
1189 (*count)++;
1190}
1191
8aa21e6f
JB		 1192static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
1193 struct ieee80211_vif *vif,
1194 struct ieee80211_bss_conf *info,
1195 u32 changed)
1196{
fc6971d4 1197 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
57c4d7b4 1198 struct mac80211_hwsim_data *data = hw->priv;
fc6971d4 1199
8aa21e6f 1200 hwsim_check_magic(vif);
fe63bfa3 1201
0bb861e6
JM		 1202 wiphy_debug(hw->wiphy, "%s(changed=0x%x vif->addr=%pM)\n",
1203 __func__, changed, vif->addr);
fe63bfa3 1204
2d0ddec5 1205 if (changed & BSS_CHANGED_BSSID) {
c96c31e4
JP		 1206 wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
1207 __func__, info->bssid);
2d0ddec5
JB		 1208 memcpy(vp->bssid, info->bssid, ETH_ALEN);
1209 }
1210
fe63bfa3 1211 if (changed & BSS_CHANGED_ASSOC) {
c96c31e4
JP		 1212 wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
1213 info->assoc, info->aid);
fc6971d4
JM		 1214 vp->assoc = info->assoc;
1215 vp->aid = info->aid;
fe63bfa3
JM		 1216 }
1217
57c4d7b4 1218 if (changed & BSS_CHANGED_BEACON_INT) {
c96c31e4 1219 wiphy_debug(hw->wiphy, " BCNINT: %d\n", info->beacon_int);
01e59e46
TP		 1220 data->beacon_int = info->beacon_int * 1024;
1221 }
1222
1223 if (changed & BSS_CHANGED_BEACON_ENABLED) {
1224 wiphy_debug(hw->wiphy, " BCN EN: %d\n", info->enable_beacon);
0bb861e6 1225 vp->bcn_en = info->enable_beacon;
01e59e46
TP		 1226 if (data->started &&
1227 !hrtimer_is_queued(&data->beacon_timer.timer) &&
1228 info->enable_beacon) {
c51f8783
TP		 1229 u64 tsf, until_tbtt;
1230 u32 bcn_int;
01e59e46
TP		 1231 if (WARN_ON(!data->beacon_int))
1232 data->beacon_int = 1000 * 1024;
c51f8783
TP		 1233 tsf = mac80211_hwsim_get_tsf(hw, vif);
1234 bcn_int = data->beacon_int;
1235 until_tbtt = bcn_int - do_div(tsf, bcn_int);
01e59e46 1236 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1237 ns_to_ktime(until_tbtt * 1000),
01e59e46 1238 HRTIMER_MODE_REL);
0bb861e6
JM		 1239 } else if (!info->enable_beacon) {
1240 unsigned int count = 0;
1241 ieee80211_iterate_active_interfaces(
1242 data->hw, IEEE80211_IFACE_ITER_NORMAL,
1243 mac80211_hwsim_bcn_en_iter, &count);
1244 wiphy_debug(hw->wiphy, " beaconing vifs remaining: %u",
1245 count);
1246 if (count == 0)
1247 tasklet_hrtimer_cancel(&data->beacon_timer);
1248 }
57c4d7b4
JB		 1249 }
1250
fe63bfa3 1251 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
c96c31e4
JP		 1252 wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
1253 info->use_cts_prot);
fe63bfa3
JM		 1254 }
1255
1256 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
c96c31e4
JP		 1257 wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
1258 info->use_short_preamble);
fe63bfa3
JM		 1259 }
1260
1261 if (changed & BSS_CHANGED_ERP_SLOT) {
c96c31e4 1262 wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
fe63bfa3
JM		 1263 }
1264
1265 if (changed & BSS_CHANGED_HT) {
4bf88530
JB		 1266 wiphy_debug(hw->wiphy, " HT: op_mode=0x%x\n",
1267 info->ht_operation_mode);
fe63bfa3
JM		 1268 }
1269
1270 if (changed & BSS_CHANGED_BASIC_RATES) {
c96c31e4
JP		 1271 wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
1272 (unsigned long long) info->basic_rates);
fe63bfa3 1273 }
cbc668a7
JB		 1274
1275 if (changed & BSS_CHANGED_TXPOWER)
1276 wiphy_debug(hw->wiphy, " TX Power: %d dBm\n", info->txpower);
8aa21e6f
JB		 1277}
1278
1d669cbf
JB		 1279static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
1280 struct ieee80211_vif *vif,
1281 struct ieee80211_sta *sta)
1282{
1283 hwsim_check_magic(vif);
1284 hwsim_set_sta_magic(sta);
1285
1286 return 0;
1287}
1288
1289static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
1290 struct ieee80211_vif *vif,
1291 struct ieee80211_sta *sta)
1292{
1293 hwsim_check_magic(vif);
1294 hwsim_clear_sta_magic(sta);
1295
1296 return 0;
1297}
1298
8aa21e6f
JB		 1299static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
1300 struct ieee80211_vif *vif,
17741cdc
JB		 1301 enum sta_notify_cmd cmd,
1302 struct ieee80211_sta *sta)
8aa21e6f
JB		 1303{
1304 hwsim_check_magic(vif);
1d669cbf 1305
81c06523 1306 switch (cmd) {
89fad578
CL		 1307 case STA_NOTIFY_SLEEP:
1308 case STA_NOTIFY_AWAKE:
1309 /* TODO: make good use of these flags */
1310 break;
1d669cbf
JB		 1311 default:
1312 WARN(1, "Invalid sta notify: %d\n", cmd);
1313 break;
81c06523
JB		 1314 }
1315}
1316
1317static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
1318 struct ieee80211_sta *sta,
1319 bool set)
1320{
1321 hwsim_check_sta_magic(sta);
1322 return 0;
8aa21e6f 1323}
acc1e7a3 1324
1e898ff8 1325static int mac80211_hwsim_conf_tx(
8a3a3c85
EP		 1326 struct ieee80211_hw *hw,
1327 struct ieee80211_vif *vif, u16 queue,
1e898ff8
JM		 1328 const struct ieee80211_tx_queue_params *params)
1329{
c96c31e4
JP		 1330 wiphy_debug(hw->wiphy,
1331 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1332 __func__, queue,
1333 params->txop, params->cw_min,
1334 params->cw_max, params->aifs);
1e898ff8
JM		 1335 return 0;
1336}
1337
1289723e
HS		 1338static int mac80211_hwsim_get_survey(
1339 struct ieee80211_hw *hw, int idx,
1340 struct survey_info *survey)
1341{
1342 struct ieee80211_conf *conf = &hw->conf;
1343
c96c31e4 1344 wiphy_debug(hw->wiphy, "%s (idx=%d)\n", __func__, idx);
1289723e
HS		 1345
1346 if (idx != 0)
1347 return -ENOENT;
1348
1349 /* Current channel */
675a0b04 1350 survey->channel = conf->chandef.chan;
1289723e
HS		 1351
1352 /*
1353 * Magically conjured noise level --- this is only ok for simulated hardware.
1354 *
1355 * A real driver which cannot determine the real channel noise MUST NOT
1356 * report any noise, especially not a magically conjured one :-)
1357 */
1358 survey->filled = SURVEY_INFO_NOISE_DBM;
1359 survey->noise = -92;
1360
1361 return 0;
1362}
1363
aff89a9b
JB		 1364#ifdef CONFIG_NL80211_TESTMODE
1365/*
1366 * This section contains example code for using netlink
1367 * attributes with the testmode command in nl80211.
1368 */
1369
1370/* These enums need to be kept in sync with userspace */
1371enum hwsim_testmode_attr {
1372 __HWSIM_TM_ATTR_INVALID = 0,
1373 HWSIM_TM_ATTR_CMD = 1,
1374 HWSIM_TM_ATTR_PS = 2,
1375
1376 /* keep last */
1377 __HWSIM_TM_ATTR_AFTER_LAST,
1378 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1379};
1380
1381enum hwsim_testmode_cmd {
1382 HWSIM_TM_CMD_SET_PS = 0,
1383 HWSIM_TM_CMD_GET_PS = 1,
4d6d0ae2
JB		 1384 HWSIM_TM_CMD_STOP_QUEUES = 2,
1385 HWSIM_TM_CMD_WAKE_QUEUES = 3,
aff89a9b
JB		 1386};
1387
1388static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1389 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1390 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1391};
1392
1393static int hwsim_fops_ps_write(void *dat, u64 val);
1394
5bc38193 1395static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
52981cd7 1396 struct ieee80211_vif *vif,
5bc38193 1397 void *data, int len)
aff89a9b
JB		 1398{
1399 struct mac80211_hwsim_data *hwsim = hw->priv;
1400 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1401 struct sk_buff *skb;
1402 int err, ps;
1403
1404 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
1405 hwsim_testmode_policy);
1406 if (err)
1407 return err;
1408
1409 if (!tb[HWSIM_TM_ATTR_CMD])
1410 return -EINVAL;
1411
1412 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1413 case HWSIM_TM_CMD_SET_PS:
1414 if (!tb[HWSIM_TM_ATTR_PS])
1415 return -EINVAL;
1416 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1417 return hwsim_fops_ps_write(hwsim, ps);
1418 case HWSIM_TM_CMD_GET_PS:
1419 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1420 nla_total_size(sizeof(u32)));
1421 if (!skb)
1422 return -ENOMEM;
633c9389
DM		 1423 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
1424 goto nla_put_failure;
aff89a9b 1425 return cfg80211_testmode_reply(skb);
4d6d0ae2
JB		 1426 case HWSIM_TM_CMD_STOP_QUEUES:
1427 ieee80211_stop_queues(hw);
1428 return 0;
1429 case HWSIM_TM_CMD_WAKE_QUEUES:
1430 ieee80211_wake_queues(hw);
1431 return 0;
aff89a9b
JB		 1432 default:
1433 return -EOPNOTSUPP;
1434 }
1435
1436 nla_put_failure:
1437 kfree_skb(skb);
1438 return -ENOBUFS;
1439}
1440#endif
1441
8b73d13a
JB		 1442static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1443 struct ieee80211_vif *vif,
1444 enum ieee80211_ampdu_mlme_action action,
0b01f030
JB		 1445 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
1446 u8 buf_size)
8b73d13a
JB		 1447{
1448 switch (action) {
1449 case IEEE80211_AMPDU_TX_START:
1450 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1451 break;
18b559d5
JB		 1452 case IEEE80211_AMPDU_TX_STOP_CONT:
1453 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1454 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
8b73d13a
JB		 1455 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1456 break;
1457 case IEEE80211_AMPDU_TX_OPERATIONAL:
1458 break;
1459 case IEEE80211_AMPDU_RX_START:
1460 case IEEE80211_AMPDU_RX_STOP:
1461 break;
1462 default:
1463 return -EOPNOTSUPP;
1464 }
1465
1466 return 0;
1467}
1468
39ecc01d 1469static void mac80211_hwsim_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
a80f7c0b 1470{
7882513b 1471 /* Not implemented, queues only on kernel side */
a80f7c0b
JB		 1472}
1473
e8261171 1474static void hw_scan_work(struct work_struct *work)
69068036 1475{
e8261171
JB		 1476 struct mac80211_hwsim_data *hwsim =
1477 container_of(work, struct mac80211_hwsim_data, hw_scan.work);
1478 struct cfg80211_scan_request *req = hwsim->hw_scan_request;
1479 int dwell, i;
69068036 1480
e8261171
JB		 1481 mutex_lock(&hwsim->mutex);
1482 if (hwsim->scan_chan_idx >= req->n_channels) {
1483 wiphy_debug(hwsim->hw->wiphy, "hw scan complete\n");
1484 ieee80211_scan_completed(hwsim->hw, false);
1485 hwsim->hw_scan_request = NULL;
1486 hwsim->hw_scan_vif = NULL;
1487 hwsim->tmp_chan = NULL;
1488 mutex_unlock(&hwsim->mutex);
1489 return;
1490 }
1491
1492 wiphy_debug(hwsim->hw->wiphy, "hw scan %d MHz\n",
1493 req->channels[hwsim->scan_chan_idx]->center_freq);
1494
1495 hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
1496 if (hwsim->tmp_chan->flags & IEEE80211_CHAN_PASSIVE_SCAN ||
1497 !req->n_ssids) {
1498 dwell = 120;
1499 } else {
1500 dwell = 30;
1501 /* send probes */
1502 for (i = 0; i < req->n_ssids; i++) {
1503 struct sk_buff *probe;
1504
1505 probe = ieee80211_probereq_get(hwsim->hw,
1506 hwsim->hw_scan_vif,
1507 req->ssids[i].ssid,
1508 req->ssids[i].ssid_len,
b9a9ada1 1509 req->ie_len);
e8261171
JB		 1510 if (!probe)
1511 continue;
b9a9ada1
JB		 1512
1513 if (req->ie_len)
1514 memcpy(skb_put(probe, req->ie_len), req->ie,
1515 req->ie_len);
1516
e8261171
JB		 1517 local_bh_disable();
1518 mac80211_hwsim_tx_frame(hwsim->hw, probe,
1519 hwsim->tmp_chan);
1520 local_bh_enable();
1521 }
1522 }
1523 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
1524 msecs_to_jiffies(dwell));
1525 hwsim->scan_chan_idx++;
1526 mutex_unlock(&hwsim->mutex);
69068036
JB		 1527}
1528
1529static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
a060bbfe 1530 struct ieee80211_vif *vif,
69068036
JB		 1531 struct cfg80211_scan_request *req)
1532{
e8261171 1533 struct mac80211_hwsim_data *hwsim = hw->priv;
69068036 1534
e8261171
JB		 1535 mutex_lock(&hwsim->mutex);
1536 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1537 mutex_unlock(&hwsim->mutex);
1538 return -EBUSY;
1539 }
1540 hwsim->hw_scan_request = req;
1541 hwsim->hw_scan_vif = vif;
1542 hwsim->scan_chan_idx = 0;
1543 mutex_unlock(&hwsim->mutex);
69068036 1544
e8261171 1545 wiphy_debug(hw->wiphy, "hwsim hw_scan request\n");
69068036 1546
e8261171 1547 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
69068036
JB		 1548
1549 return 0;
1550}
1551
e8261171
JB		 1552static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
1553 struct ieee80211_vif *vif)
1554{
1555 struct mac80211_hwsim_data *hwsim = hw->priv;
1556
1557 wiphy_debug(hw->wiphy, "hwsim cancel_hw_scan\n");
1558
1559 cancel_delayed_work_sync(&hwsim->hw_scan);
1560
1561 mutex_lock(&hwsim->mutex);
1562 ieee80211_scan_completed(hwsim->hw, true);
1563 hwsim->tmp_chan = NULL;
1564 hwsim->hw_scan_request = NULL;
1565 hwsim->hw_scan_vif = NULL;
1566 mutex_unlock(&hwsim->mutex);
1567}
1568
f74cb0f7
LR		 1569static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw)
1570{
1571 struct mac80211_hwsim_data *hwsim = hw->priv;
1572
1573 mutex_lock(&hwsim->mutex);
1574
1575 if (hwsim->scanning) {
1576 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
1577 goto out;
1578 }
1579
1580 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
1581 hwsim->scanning = true;
1582
1583out:
1584 mutex_unlock(&hwsim->mutex);
1585}
1586
1587static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw)
1588{
1589 struct mac80211_hwsim_data *hwsim = hw->priv;
1590
1591 mutex_lock(&hwsim->mutex);
1592
1593 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
23ff98fc 1594 hwsim->scanning = false;
f74cb0f7
LR		 1595
1596 mutex_unlock(&hwsim->mutex);
1597}
1598
e8261171
JB		 1599static void hw_roc_done(struct work_struct *work)
1600{
1601 struct mac80211_hwsim_data *hwsim =
1602 container_of(work, struct mac80211_hwsim_data, roc_done.work);
1603
1604 mutex_lock(&hwsim->mutex);
1605 ieee80211_remain_on_channel_expired(hwsim->hw);
1606 hwsim->tmp_chan = NULL;
1607 mutex_unlock(&hwsim->mutex);
1608
1609 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC expired\n");
1610}
1611
1612static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
49884568 1613 struct ieee80211_vif *vif,
e8261171 1614 struct ieee80211_channel *chan,
d339d5ca
IP		 1615 int duration,
1616 enum ieee80211_roc_type type)
e8261171
JB		 1617{
1618 struct mac80211_hwsim_data *hwsim = hw->priv;
1619
1620 mutex_lock(&hwsim->mutex);
1621 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1622 mutex_unlock(&hwsim->mutex);
1623 return -EBUSY;
1624 }
1625
1626 hwsim->tmp_chan = chan;
1627 mutex_unlock(&hwsim->mutex);
1628
1629 wiphy_debug(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
1630 chan->center_freq, duration);
1631
1632 ieee80211_ready_on_channel(hw);
1633
1634 ieee80211_queue_delayed_work(hw, &hwsim->roc_done,
1635 msecs_to_jiffies(duration));
1636 return 0;
1637}
1638
1639static int mac80211_hwsim_croc(struct ieee80211_hw *hw)
1640{
1641 struct mac80211_hwsim_data *hwsim = hw->priv;
1642
1643 cancel_delayed_work_sync(&hwsim->roc_done);
1644
1645 mutex_lock(&hwsim->mutex);
1646 hwsim->tmp_chan = NULL;
1647 mutex_unlock(&hwsim->mutex);
1648
1649 wiphy_debug(hw->wiphy, "hwsim ROC canceled\n");
1650
1651 return 0;
1652}
1653
1654static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
1655 struct ieee80211_chanctx_conf *ctx)
1656{
1657 hwsim_set_chanctx_magic(ctx);
4bf88530
JB		 1658 wiphy_debug(hw->wiphy,
1659 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1660 ctx->def.chan->center_freq, ctx->def.width,
1661 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1662 return 0;
1663}
1664
1665static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
1666 struct ieee80211_chanctx_conf *ctx)
1667{
4bf88530
JB		 1668 wiphy_debug(hw->wiphy,
1669 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1670 ctx->def.chan->center_freq, ctx->def.width,
1671 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1672 hwsim_check_chanctx_magic(ctx);
1673 hwsim_clear_chanctx_magic(ctx);
1674}
1675
1676static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
1677 struct ieee80211_chanctx_conf *ctx,
1678 u32 changed)
1679{
1680 hwsim_check_chanctx_magic(ctx);
4bf88530
JB		 1681 wiphy_debug(hw->wiphy,
1682 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1683 ctx->def.chan->center_freq, ctx->def.width,
1684 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1685}
1686
1687static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
1688 struct ieee80211_vif *vif,
1689 struct ieee80211_chanctx_conf *ctx)
1690{
1691 hwsim_check_magic(vif);
1692 hwsim_check_chanctx_magic(ctx);
1693
1694 return 0;
1695}
1696
1697static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
1698 struct ieee80211_vif *vif,
1699 struct ieee80211_chanctx_conf *ctx)
1700{
1701 hwsim_check_magic(vif);
1702 hwsim_check_chanctx_magic(ctx);
1703}
1704
69068036 1705static struct ieee80211_ops mac80211_hwsim_ops =
acc1e7a3
JM		 1706{
1707 .tx = mac80211_hwsim_tx,
1708 .start = mac80211_hwsim_start,
1709 .stop = mac80211_hwsim_stop,
1710 .add_interface = mac80211_hwsim_add_interface,
c35d0270 1711 .change_interface = mac80211_hwsim_change_interface,
acc1e7a3
JM		 1712 .remove_interface = mac80211_hwsim_remove_interface,
1713 .config = mac80211_hwsim_config,
1714 .configure_filter = mac80211_hwsim_configure_filter,
8aa21e6f 1715 .bss_info_changed = mac80211_hwsim_bss_info_changed,
1d669cbf
JB		 1716 .sta_add = mac80211_hwsim_sta_add,
1717 .sta_remove = mac80211_hwsim_sta_remove,
8aa21e6f 1718 .sta_notify = mac80211_hwsim_sta_notify,
81c06523 1719 .set_tim = mac80211_hwsim_set_tim,
1e898ff8 1720 .conf_tx = mac80211_hwsim_conf_tx,
1289723e 1721 .get_survey = mac80211_hwsim_get_survey,
aff89a9b 1722 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
8b73d13a 1723 .ampdu_action = mac80211_hwsim_ampdu_action,
f74cb0f7
LR		 1724 .sw_scan_start = mac80211_hwsim_sw_scan,
1725 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
a80f7c0b 1726 .flush = mac80211_hwsim_flush,
12ce8ba3
JC		 1727 .get_tsf = mac80211_hwsim_get_tsf,
1728 .set_tsf = mac80211_hwsim_set_tsf,
acc1e7a3
JM		 1729};
1730
1731
1732static void mac80211_hwsim_free(void)
1733{
0e057d73 1734 struct list_head tmplist, *i, *tmp;
e603d9d8 1735 struct mac80211_hwsim_data *data, *tmpdata;
0e057d73
JB		 1736
1737 INIT_LIST_HEAD(&tmplist);
1738
1739 spin_lock_bh(&hwsim_radio_lock);
1740 list_for_each_safe(i, tmp, &hwsim_radios)
1741 list_move(i, &tmplist);
1742 spin_unlock_bh(&hwsim_radio_lock);
1743
e603d9d8 1744 list_for_each_entry_safe(data, tmpdata, &tmplist, list) {
73606d00 1745 debugfs_remove(data->debugfs_group);
fc6971d4
JM		 1746 debugfs_remove(data->debugfs_ps);
1747 debugfs_remove(data->debugfs);
0e057d73 1748 ieee80211_unregister_hw(data->hw);
9ea92774 1749 device_release_driver(data->dev);
0e057d73
JB		 1750 device_unregister(data->dev);
1751 ieee80211_free_hw(data->hw);
acc1e7a3 1752 }
acc1e7a3
JM		 1753 class_destroy(hwsim_class);
1754}
1755
c07fe5ae
SL		 1756static struct platform_driver mac80211_hwsim_driver = {
1757 .driver = {
1758 .name = "mac80211_hwsim",
1759 .owner = THIS_MODULE,
1760 },
acc1e7a3
JM		 1761};
1762
98d2faae
SH		 1763static const struct net_device_ops hwsim_netdev_ops = {
1764 .ndo_start_xmit = hwsim_mon_xmit,
1765 .ndo_change_mtu = eth_change_mtu,
1766 .ndo_set_mac_address = eth_mac_addr,
1767 .ndo_validate_addr = eth_validate_addr,
1768};
acc1e7a3
JM		 1769
1770static void hwsim_mon_setup(struct net_device *dev)
1771{
98d2faae 1772 dev->netdev_ops = &hwsim_netdev_ops;
acc1e7a3
JM		 1773 dev->destructor = free_netdev;
1774 ether_setup(dev);
1775 dev->tx_queue_len = 0;
1776 dev->type = ARPHRD_IEEE80211_RADIOTAP;
1777 memset(dev->dev_addr, 0, ETH_ALEN);
1778 dev->dev_addr[0] = 0x12;
1779}
1780
1781
fc6971d4
JM		 1782static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
1783{
1784 struct mac80211_hwsim_data *data = dat;
1785 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
fc6971d4
JM		 1786 struct sk_buff *skb;
1787 struct ieee80211_pspoll *pspoll;
1788
1789 if (!vp->assoc)
1790 return;
1791
c96c31e4
JP		 1792 wiphy_debug(data->hw->wiphy,
1793 "%s: send PS-Poll to %pM for aid %d\n",
1794 __func__, vp->bssid, vp->aid);
fc6971d4
JM		 1795
1796 skb = dev_alloc_skb(sizeof(*pspoll));
1797 if (!skb)
1798 return;
1799 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
1800 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
1801 IEEE80211_STYPE_PSPOLL |
1802 IEEE80211_FCTL_PM);
1803 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
1804 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
1805 memcpy(pspoll->ta, mac, ETH_ALEN);
7882513b 1806
e8261171
JB		 1807 rcu_read_lock();
1808 mac80211_hwsim_tx_frame(data->hw, skb,
4bf88530 1809 rcu_dereference(vif->chanctx_conf)->def.chan);
e8261171 1810 rcu_read_unlock();
fc6971d4
JM		 1811}
1812
fc6971d4
JM		 1813static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
1814 struct ieee80211_vif *vif, int ps)
1815{
1816 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
fc6971d4
JM		 1817 struct sk_buff *skb;
1818 struct ieee80211_hdr *hdr;
1819
1820 if (!vp->assoc)
1821 return;
1822
c96c31e4
JP		 1823 wiphy_debug(data->hw->wiphy,
1824 "%s: send data::nullfunc to %pM ps=%d\n",
1825 __func__, vp->bssid, ps);
fc6971d4
JM		 1826
1827 skb = dev_alloc_skb(sizeof(*hdr));
1828 if (!skb)
1829 return;
1830 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
1831 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1832 IEEE80211_STYPE_NULLFUNC |
1833 (ps ? IEEE80211_FCTL_PM : 0));
1834 hdr->duration_id = cpu_to_le16(0);
1835 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
1836 memcpy(hdr->addr2, mac, ETH_ALEN);
1837 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
7882513b 1838
e8261171
JB		 1839 rcu_read_lock();
1840 mac80211_hwsim_tx_frame(data->hw, skb,
4bf88530 1841 rcu_dereference(vif->chanctx_conf)->def.chan);
e8261171 1842 rcu_read_unlock();
fc6971d4
JM		 1843}
1844
1845
1846static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
1847 struct ieee80211_vif *vif)
1848{
1849 struct mac80211_hwsim_data *data = dat;
1850 hwsim_send_nullfunc(data, mac, vif, 1);
1851}
1852
1853
1854static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
1855 struct ieee80211_vif *vif)
1856{
1857 struct mac80211_hwsim_data *data = dat;
1858 hwsim_send_nullfunc(data, mac, vif, 0);
1859}
1860
1861
1862static int hwsim_fops_ps_read(void *dat, u64 *val)
1863{
1864 struct mac80211_hwsim_data *data = dat;
1865 *val = data->ps;
1866 return 0;
1867}
1868
1869static int hwsim_fops_ps_write(void *dat, u64 val)
1870{
1871 struct mac80211_hwsim_data *data = dat;
1872 enum ps_mode old_ps;
1873
1874 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
1875 val != PS_MANUAL_POLL)
1876 return -EINVAL;
1877
1878 old_ps = data->ps;
1879 data->ps = val;
1880
1881 if (val == PS_MANUAL_POLL) {
1882 ieee80211_iterate_active_interfaces(data->hw,
8b2c9824 1883 IEEE80211_IFACE_ITER_NORMAL,
fc6971d4
JM		 1884 hwsim_send_ps_poll, data);
1885 data->ps_poll_pending = true;
1886 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
1887 ieee80211_iterate_active_interfaces(data->hw,
8b2c9824 1888 IEEE80211_IFACE_ITER_NORMAL,
fc6971d4
JM		 1889 hwsim_send_nullfunc_ps,
1890 data);
1891 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
1892 ieee80211_iterate_active_interfaces(data->hw,
8b2c9824 1893 IEEE80211_IFACE_ITER_NORMAL,
fc6971d4
JM		 1894 hwsim_send_nullfunc_no_ps,
1895 data);
1896 }
1897
1898 return 0;
1899}
1900
1901DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
1902 "%llu\n");
1903
1904
73606d00
DW		 1905static int hwsim_fops_group_read(void *dat, u64 *val)
1906{
1907 struct mac80211_hwsim_data *data = dat;
1908 *val = data->group;
1909 return 0;
1910}
1911
1912static int hwsim_fops_group_write(void *dat, u64 val)
1913{
1914 struct mac80211_hwsim_data *data = dat;
1915 data->group = val;
1916 return 0;
1917}
1918
1919DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
1920 hwsim_fops_group_read, hwsim_fops_group_write,
1921 "%llx\n");
1922
f483ad25 1923static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(
7882513b
JL		 1924 struct mac_address *addr)
1925{
1926 struct mac80211_hwsim_data *data;
1927 bool _found = false;
1928
1929 spin_lock_bh(&hwsim_radio_lock);
1930 list_for_each_entry(data, &hwsim_radios, list) {
1931 if (memcmp(data->addresses[1].addr, addr,
1932 sizeof(struct mac_address)) == 0) {
1933 _found = true;
1934 break;
1935 }
1936 }
1937 spin_unlock_bh(&hwsim_radio_lock);
1938
1939 if (!_found)
1940 return NULL;
1941
1942 return data;
1943}
1944
1945static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
1946 struct genl_info *info)
1947{
1948
1949 struct ieee80211_hdr *hdr;
1950 struct mac80211_hwsim_data *data2;
1951 struct ieee80211_tx_info *txi;
1952 struct hwsim_tx_rate *tx_attempts;
d0f718c1 1953 unsigned long ret_skb_ptr;
7882513b
JL		 1954 struct sk_buff *skb, *tmp;
1955 struct mac_address *src;
1956 unsigned int hwsim_flags;
1957
1958 int i;
1959 bool found = false;
1960
1961 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
1962 !info->attrs[HWSIM_ATTR_FLAGS] ||
1963 !info->attrs[HWSIM_ATTR_COOKIE] ||
1964 !info->attrs[HWSIM_ATTR_TX_INFO])
1965 goto out;
1966
1967 src = (struct mac_address *)nla_data(
1968 info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
1969 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
1970
d0f718c1 1971 ret_skb_ptr = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
7882513b
JL		 1972
1973 data2 = get_hwsim_data_ref_from_addr(src);
1974
1975 if (data2 == NULL)
1976 goto out;
1977
1978 /* look for the skb matching the cookie passed back from user */
1979 skb_queue_walk_safe(&data2->pending, skb, tmp) {
d0f718c1 1980 if ((unsigned long)skb == ret_skb_ptr) {
7882513b
JL		 1981 skb_unlink(skb, &data2->pending);
1982 found = true;
1983 break;
1984 }
1985 }
1986
1987 /* not found */
1988 if (!found)
1989 goto out;
1990
1991 /* Tx info received because the frame was broadcasted on user space,
1992 so we get all the necessary info: tx attempts and skb control buff */
1993
1994 tx_attempts = (struct hwsim_tx_rate *)nla_data(
1995 info->attrs[HWSIM_ATTR_TX_INFO]);
1996
1997 /* now send back TX status */
1998 txi = IEEE80211_SKB_CB(skb);
1999
7882513b
JL		 2000 ieee80211_tx_info_clear_status(txi);
2001
2002 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
2003 txi->status.rates[i].idx = tx_attempts[i].idx;
2004 txi->status.rates[i].count = tx_attempts[i].count;
2005 /*txi->status.rates[i].flags = 0;*/
2006 }
2007
2008 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
2009
2010 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
2011 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
2012 if (skb->len >= 16) {
2013 hdr = (struct ieee80211_hdr *) skb->data;
e8261171
JB		 2014 mac80211_hwsim_monitor_ack(txi->rate_driver_data[0],
2015 hdr->addr2);
7882513b 2016 }
06cf5c4c 2017 txi->flags |= IEEE80211_TX_STAT_ACK;
7882513b
JL		 2018 }
2019 ieee80211_tx_status_irqsafe(data2->hw, skb);
2020 return 0;
2021out:
2022 return -EINVAL;
2023
2024}
2025
2026static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
2027 struct genl_info *info)
2028{
2029
e8261171 2030 struct mac80211_hwsim_data *data2;
7882513b
JL		 2031 struct ieee80211_rx_status rx_status;
2032 struct mac_address *dst;
2033 int frame_data_len;
2034 char *frame_data;
2035 struct sk_buff *skb = NULL;
2036
2037 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
e8261171
JB		 2038 !info->attrs[HWSIM_ATTR_FRAME] ||
2039 !info->attrs[HWSIM_ATTR_RX_RATE] ||
2040 !info->attrs[HWSIM_ATTR_SIGNAL])
7882513b
JL		 2041 goto out;
2042
2043 dst = (struct mac_address *)nla_data(
2044 info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
2045
2046 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
2047 frame_data = (char *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
2048
2049 /* Allocate new skb here */
2050 skb = alloc_skb(frame_data_len, GFP_KERNEL);
2051 if (skb == NULL)
2052 goto err;
2053
2054 if (frame_data_len <= IEEE80211_MAX_DATA_LEN) {
2055 /* Copy the data */
2056 memcpy(skb_put(skb, frame_data_len), frame_data,
2057 frame_data_len);
2058 } else
2059 goto err;
2060
2061 data2 = get_hwsim_data_ref_from_addr(dst);
2062
2063 if (data2 == NULL)
2064 goto out;
2065
2066 /* check if radio is configured properly */
2067
e8261171 2068 if (data2->idle || !data2->started)
7882513b
JL		 2069 goto out;
2070
2071 /*A frame is received from user space*/
2072 memset(&rx_status, 0, sizeof(rx_status));
2073 rx_status.freq = data2->channel->center_freq;
2074 rx_status.band = data2->channel->band;
2075 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
2076 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
2077
2078 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
2079 ieee80211_rx_irqsafe(data2->hw, skb);
2080
2081 return 0;
2082err:
c393862f 2083 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 2084 goto out;
2085out:
2086 dev_kfree_skb(skb);
2087 return -EINVAL;
2088}
2089
2090static int hwsim_register_received_nl(struct sk_buff *skb_2,
2091 struct genl_info *info)
2092{
2093 if (info == NULL)
2094 goto out;
2095
15e47304 2096 wmediumd_portid = info->snd_portid;
7882513b
JL		 2097
2098 printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
15e47304 2099 "switching to wmediumd mode with pid %d\n", info->snd_portid);
7882513b
JL		 2100
2101 return 0;
2102out:
c393862f 2103 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 2104 return -EINVAL;
2105}
2106
2107/* Generic Netlink operations array */
4534de83 2108static const struct genl_ops hwsim_ops[] = {
7882513b
JL		 2109 {
2110 .cmd = HWSIM_CMD_REGISTER,
2111 .policy = hwsim_genl_policy,
2112 .doit = hwsim_register_received_nl,
2113 .flags = GENL_ADMIN_PERM,
2114 },
2115 {
2116 .cmd = HWSIM_CMD_FRAME,
2117 .policy = hwsim_genl_policy,
2118 .doit = hwsim_cloned_frame_received_nl,
2119 },
2120 {
2121 .cmd = HWSIM_CMD_TX_INFO_FRAME,
2122 .policy = hwsim_genl_policy,
2123 .doit = hwsim_tx_info_frame_received_nl,
2124 },
2125};
2126
2127static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
2128 unsigned long state,
2129 void *_notify)
2130{
2131 struct netlink_notify *notify = _notify;
2132
2133 if (state != NETLINK_URELEASE)
2134 return NOTIFY_DONE;
2135
15e47304 2136 if (notify->portid == wmediumd_portid) {
7882513b
JL		 2137 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
2138 " socket, switching to perfect channel medium\n");
15e47304 2139 wmediumd_portid = 0;
7882513b
JL		 2140 }
2141 return NOTIFY_DONE;
2142
2143}
2144
2145static struct notifier_block hwsim_netlink_notifier = {
2146 .notifier_call = mac80211_hwsim_netlink_notify,
2147};
2148
2149static int hwsim_init_netlink(void)
2150{
2151 int rc;
e8261171
JB		 2152
2153 /* userspace test API hasn't been adjusted for multi-channel */
2154 if (channels > 1)
2155 return 0;
2156
7882513b
JL		 2157 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
2158
c53ed742 2159 rc = genl_register_family_with_ops(&hwsim_genl_family, hwsim_ops);
7882513b
JL		 2160 if (rc)
2161 goto failure;
2162
2163 rc = netlink_register_notifier(&hwsim_netlink_notifier);
2164 if (rc)
2165 goto failure;
2166
2167 return 0;
2168
2169failure:
c393862f 2170 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 2171 return -EINVAL;
2172}
2173
2174static void hwsim_exit_netlink(void)
2175{
2176 int ret;
2177
e8261171
JB		 2178 /* userspace test API hasn't been adjusted for multi-channel */
2179 if (channels > 1)
2180 return;
2181
7882513b
JL		 2182 printk(KERN_INFO "mac80211_hwsim: closing netlink\n");
2183 /* unregister the notifier */
2184 netlink_unregister_notifier(&hwsim_netlink_notifier);
2185 /* unregister the family */
2186 ret = genl_unregister_family(&hwsim_genl_family);
2187 if (ret)
2188 printk(KERN_DEBUG "mac80211_hwsim: "
2189 "unregister family %i\n", ret);
2190}
2191
1ae2fc25
JB		 2192static const struct ieee80211_iface_limit hwsim_if_limits[] = {
2193 { .max = 1, .types = BIT(NL80211_IFTYPE_ADHOC) },
2194 { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) |
2195 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2196#ifdef CONFIG_MAC80211_MESH
2197 BIT(NL80211_IFTYPE_MESH_POINT) |
2198#endif
2199 BIT(NL80211_IFTYPE_AP) |
2200 BIT(NL80211_IFTYPE_P2P_GO) },
8b3d1cc2 2201 { .max = 1, .types = BIT(NL80211_IFTYPE_P2P_DEVICE) },
1ae2fc25
JB		 2202};
2203
e8261171 2204static struct ieee80211_iface_combination hwsim_if_comb = {
1ae2fc25
JB		 2205 .limits = hwsim_if_limits,
2206 .n_limits = ARRAY_SIZE(hwsim_if_limits),
2207 .max_interfaces = 2048,
2208 .num_different_channels = 1,
2209};
2210
acc1e7a3
JM		 2211static int __init init_mac80211_hwsim(void)
2212{
2213 int i, err = 0;
2214 u8 addr[ETH_ALEN];
2215 struct mac80211_hwsim_data *data;
2216 struct ieee80211_hw *hw;
22cad735 2217 enum ieee80211_band band;
acc1e7a3 2218
0e057d73 2219 if (radios < 1 || radios > 100)
acc1e7a3
JM		 2220 return -EINVAL;
2221
e8261171
JB		 2222 if (channels < 1)
2223 return -EINVAL;
2224
2225 if (channels > 1) {
2226 hwsim_if_comb.num_different_channels = channels;
69068036 2227 mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan;
e8261171
JB		 2228 mac80211_hwsim_ops.cancel_hw_scan =
2229 mac80211_hwsim_cancel_hw_scan;
f74cb0f7
LR		 2230 mac80211_hwsim_ops.sw_scan_start = NULL;
2231 mac80211_hwsim_ops.sw_scan_complete = NULL;
e8261171
JB		 2232 mac80211_hwsim_ops.remain_on_channel =
2233 mac80211_hwsim_roc;
2234 mac80211_hwsim_ops.cancel_remain_on_channel =
2235 mac80211_hwsim_croc;
2236 mac80211_hwsim_ops.add_chanctx =
2237 mac80211_hwsim_add_chanctx;
2238 mac80211_hwsim_ops.remove_chanctx =
2239 mac80211_hwsim_remove_chanctx;
2240 mac80211_hwsim_ops.change_chanctx =
2241 mac80211_hwsim_change_chanctx;
2242 mac80211_hwsim_ops.assign_vif_chanctx =
2243 mac80211_hwsim_assign_vif_chanctx;
2244 mac80211_hwsim_ops.unassign_vif_chanctx =
2245 mac80211_hwsim_unassign_vif_chanctx;
f74cb0f7 2246 }
69068036 2247
0e057d73
JB		 2248 spin_lock_init(&hwsim_radio_lock);
2249 INIT_LIST_HEAD(&hwsim_radios);
acc1e7a3 2250
c07fe5ae 2251 err = platform_driver_register(&mac80211_hwsim_driver);
9ea92774
MP		 2252 if (err)
2253 return err;
2254
acc1e7a3 2255 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
9ea92774
MP		 2256 if (IS_ERR(hwsim_class)) {
2257 err = PTR_ERR(hwsim_class);
2258 goto failed_unregister_driver;
2259 }
acc1e7a3
JM		 2260
2261 memset(addr, 0, ETH_ALEN);
2262 addr[0] = 0x02;
2263
0e057d73 2264 for (i = 0; i < radios; i++) {
acc1e7a3
JM		 2265 printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
2266 i);
2267 hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);
0e057d73 2268 if (!hw) {
acc1e7a3
JM		 2269 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
2270 "failed\n");
2271 err = -ENOMEM;
2272 goto failed;
2273 }
acc1e7a3 2274 data = hw->priv;
0e057d73
JB		 2275 data->hw = hw;
2276
6e05d6c4
GKH		 2277 data->dev = device_create(hwsim_class, NULL, 0, hw,
2278 "hwsim%d", i);
acc1e7a3 2279 if (IS_ERR(data->dev)) {
e800f17c 2280 printk(KERN_DEBUG
9ea92774
MP		 2281 "mac80211_hwsim: device_create failed (%ld)\n",
2282 PTR_ERR(data->dev));
acc1e7a3 2283 err = -ENOMEM;
3a33cc10 2284 goto failed_drvdata;
acc1e7a3 2285 }
c07fe5ae 2286 data->dev->driver = &mac80211_hwsim_driver.driver;
9ea92774
MP		 2287 err = device_bind_driver(data->dev);
2288 if (err != 0) {
2289 printk(KERN_DEBUG
2290 "mac80211_hwsim: device_bind_driver failed (%d)\n",
2291 err);
2292 goto failed_hw;
2293 }
2294
7882513b 2295 skb_queue_head_init(&data->pending);
acc1e7a3
JM		 2296
2297 SET_IEEE80211_DEV(hw, data->dev);
2298 addr[3] = i >> 8;
2299 addr[4] = i;
ef15aac6
JB		 2300 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
2301 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
2302 data->addresses[1].addr[0] |= 0x40;
2303 hw->wiphy->n_addresses = 2;
2304 hw->wiphy->addresses = data->addresses;
acc1e7a3 2305
1ae2fc25
JB		 2306 hw->wiphy->iface_combinations = &hwsim_if_comb;
2307 hw->wiphy->n_iface_combinations = 1;
2308
e8261171 2309 if (channels > 1) {
8223d2f5
JB		 2310 hw->wiphy->max_scan_ssids = 255;
2311 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
e8261171 2312 hw->wiphy->max_remain_on_channel_duration = 1000;
8223d2f5
JB		 2313 }
2314
e8261171
JB		 2315 INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
2316 INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
2317
acc1e7a3 2318 hw->channel_change_time = 1;
e8261171
JB		 2319 hw->queues = 5;
2320 hw->offchannel_tx_hw_queue = 4;
f59ac048
LR		 2321 hw->wiphy->interface_modes =
2322 BIT(NL80211_IFTYPE_STATION) |
55b39619 2323 BIT(NL80211_IFTYPE_AP) |
2ca27bcf
JB		 2324 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2325 BIT(NL80211_IFTYPE_P2P_GO) |
2b2d7795 2326 BIT(NL80211_IFTYPE_ADHOC) |
8b3d1cc2
JB		 2327 BIT(NL80211_IFTYPE_MESH_POINT) |
2328 BIT(NL80211_IFTYPE_P2P_DEVICE);
acc1e7a3 2329
4b14c96d 2330 hw->flags = IEEE80211_HW_MFP_CAPABLE |
0f78231b
JB		 2331 IEEE80211_HW_SIGNAL_DBM |
2332 IEEE80211_HW_SUPPORTS_STATIC_SMPS |
a75b4363 2333 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
4b6f1dd6 2334 IEEE80211_HW_AMPDU_AGGREGATION |
e8261171
JB		 2335 IEEE80211_HW_WANT_MONITOR_VIF |
2336 IEEE80211_HW_QUEUE_CONTROL;
1eb32179
KB		 2337 if (rctbl)
2338 hw->flags |= IEEE80211_HW_SUPPORTS_RC_TABLE;
fa77533e 2339
81ddbb5c 2340 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2f5286e8
JB		 2341 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
2342 WIPHY_FLAG_AP_UAPSD;
5fd91aac 2343 hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR;
43bc3e89 2344
8aa21e6f
JB		 2345 /* ask mac80211 to reserve space for magic */
2346 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
81c06523 2347 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
93c78c5d 2348 hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
8aa21e6f 2349
22cad735
LR		 2350 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
2351 sizeof(hwsim_channels_2ghz));
2352 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
2353 sizeof(hwsim_channels_5ghz));
acc1e7a3 2354 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
22cad735
LR		 2355
2356 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
2357 struct ieee80211_supported_band *sband = &data->bands[band];
2358 switch (band) {
2359 case IEEE80211_BAND_2GHZ:
2360 sband->channels = data->channels_2ghz;
2361 sband->n_channels =
2362 ARRAY_SIZE(hwsim_channels_2ghz);
d130eb49
JB		 2363 sband->bitrates = data->rates;
2364 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
22cad735
LR		 2365 break;
2366 case IEEE80211_BAND_5GHZ:
2367 sband->channels = data->channels_5ghz;
2368 sband->n_channels =
2369 ARRAY_SIZE(hwsim_channels_5ghz);
d130eb49
JB		 2370 sband->bitrates = data->rates + 4;
2371 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
22cad735
LR		 2372 break;
2373 default:
1b083ea4 2374 continue;
22cad735
LR		 2375 }
2376
22cad735
LR		 2377 sband->ht_cap.ht_supported = true;
2378 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
2379 IEEE80211_HT_CAP_GRN_FLD |
2380 IEEE80211_HT_CAP_SGI_40 |
2381 IEEE80211_HT_CAP_DSSSCCK40;
2382 sband->ht_cap.ampdu_factor = 0x3;
2383 sband->ht_cap.ampdu_density = 0x6;
2384 memset(&sband->ht_cap.mcs, 0,
2385 sizeof(sband->ht_cap.mcs));
2386 sband->ht_cap.mcs.rx_mask[0] = 0xff;
2387 sband->ht_cap.mcs.rx_mask[1] = 0xff;
2388 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2389
2390 hw->wiphy->bands[band] = sband;
b296005c 2391
b296005c
JB		 2392 sband->vht_cap.vht_supported = true;
2393 sband->vht_cap.cap =
2394 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
2395 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
2396 IEEE80211_VHT_CAP_RXLDPC |
2397 IEEE80211_VHT_CAP_SHORT_GI_80 |
2398 IEEE80211_VHT_CAP_SHORT_GI_160 |
2399 IEEE80211_VHT_CAP_TXSTBC |
2400 IEEE80211_VHT_CAP_RXSTBC_1 |
2401 IEEE80211_VHT_CAP_RXSTBC_2 |
2402 IEEE80211_VHT_CAP_RXSTBC_3 |
2403 IEEE80211_VHT_CAP_RXSTBC_4 |
01331040 2404 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
b296005c
JB		 2405 sband->vht_cap.vht_mcs.rx_mcs_map =
2406 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_8 << 0 |
2407 IEEE80211_VHT_MCS_SUPPORT_0_8 << 2 |
2408 IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
2409 IEEE80211_VHT_MCS_SUPPORT_0_8 << 6 |
2410 IEEE80211_VHT_MCS_SUPPORT_0_8 << 8 |
2411 IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
2412 IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
2413 IEEE80211_VHT_MCS_SUPPORT_0_8 << 14);
2414 sband->vht_cap.vht_mcs.tx_mcs_map =
2415 sband->vht_cap.vht_mcs.rx_mcs_map;
22cad735 2416 }
73606d00
DW		 2417 /* By default all radios are belonging to the first group */
2418 data->group = 1;
f74cb0f7 2419 mutex_init(&data->mutex);
acc1e7a3 2420
7882513b
JL		 2421 /* Enable frame retransmissions for lossy channels */
2422 hw->max_rates = 4;
2423 hw->max_rate_tries = 11;
2424
4a5af9c2
LR		 2425 /* Work to be done prior to ieee80211_register_hw() */
2426 switch (regtest) {
2427 case HWSIM_REGTEST_DISABLED:
2428 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
2429 case HWSIM_REGTEST_DRIVER_REG_ALL:
2430 case HWSIM_REGTEST_DIFF_COUNTRY:
2431 /*
2432 * Nothing to be done for driver regulatory domain
2433 * hints prior to ieee80211_register_hw()
2434 */
2435 break;
2436 case HWSIM_REGTEST_WORLD_ROAM:
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 }
2442 break;
2443 case HWSIM_REGTEST_CUSTOM_WORLD:
5be83de5 2444 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 2445 wiphy_apply_custom_regulatory(hw->wiphy,
2446 &hwsim_world_regdom_custom_01);
2447 break;
2448 case HWSIM_REGTEST_CUSTOM_WORLD_2:
2449 if (i == 0) {
5be83de5 2450 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 2451 wiphy_apply_custom_regulatory(hw->wiphy,
2452 &hwsim_world_regdom_custom_01);
2453 } else if (i == 1) {
5be83de5 2454 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 2455 wiphy_apply_custom_regulatory(hw->wiphy,
2456 &hwsim_world_regdom_custom_02);
2457 }
2458 break;
2459 case HWSIM_REGTEST_STRICT_ALL:
5be83de5 2460 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
4a5af9c2
LR		 2461 break;
2462 case HWSIM_REGTEST_STRICT_FOLLOW:
2463 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
2464 if (i == 0)
5be83de5 2465 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
4a5af9c2
LR		 2466 break;
2467 case HWSIM_REGTEST_ALL:
2468 if (i == 0) {
5be83de5 2469 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 2470 wiphy_apply_custom_regulatory(hw->wiphy,
2471 &hwsim_world_regdom_custom_01);
2472 } else if (i == 1) {
5be83de5 2473 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 2474 wiphy_apply_custom_regulatory(hw->wiphy,
2475 &hwsim_world_regdom_custom_02);
2476 } else if (i == 4)
5be83de5 2477 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
4a5af9c2
LR		 2478 break;
2479 default:
2480 break;
2481 }
2482
98dfaa57
LR		 2483 /* give the regulatory workqueue a chance to run */
2484 if (regtest)
2485 schedule_timeout_interruptible(1);
acc1e7a3
JM		 2486 err = ieee80211_register_hw(hw);
2487 if (err < 0) {
2488 printk(KERN_DEBUG "mac80211_hwsim: "
2489 "ieee80211_register_hw failed (%d)\n", err);
3a33cc10 2490 goto failed_hw;
acc1e7a3
JM		 2491 }
2492
4a5af9c2
LR		 2493 /* Work to be done after to ieee80211_register_hw() */
2494 switch (regtest) {
2495 case HWSIM_REGTEST_WORLD_ROAM:
2496 case HWSIM_REGTEST_DISABLED:
2497 break;
2498 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
2499 if (!i)
2500 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2501 break;
2502 case HWSIM_REGTEST_DRIVER_REG_ALL:
2503 case HWSIM_REGTEST_STRICT_ALL:
2504 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2505 break;
2506 case HWSIM_REGTEST_DIFF_COUNTRY:
2507 if (i < ARRAY_SIZE(hwsim_alpha2s))
2508 regulatory_hint(hw->wiphy, hwsim_alpha2s[i]);
2509 break;
2510 case HWSIM_REGTEST_CUSTOM_WORLD:
2511 case HWSIM_REGTEST_CUSTOM_WORLD_2:
2512 /*
2513 * Nothing to be done for custom world regulatory
2514 * domains after to ieee80211_register_hw
2515 */
2516 break;
2517 case HWSIM_REGTEST_STRICT_FOLLOW:
2518 if (i == 0)
2519 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2520 break;
2521 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
2522 if (i == 0)
2523 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2524 else if (i == 1)
2525 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
2526 break;
2527 case HWSIM_REGTEST_ALL:
2528 if (i == 2)
2529 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2530 else if (i == 3)
2531 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
2532 else if (i == 4)
2533 regulatory_hint(hw->wiphy, hwsim_alpha2s[2]);
2534 break;
2535 default:
2536 break;
2537 }
2538
c96c31e4
JP		 2539 wiphy_debug(hw->wiphy, "hwaddr %pm registered\n",
2540 hw->wiphy->perm_addr);
acc1e7a3 2541
fc6971d4
JM		 2542 data->debugfs = debugfs_create_dir("hwsim",
2543 hw->wiphy->debugfsdir);
2544 data->debugfs_ps = debugfs_create_file("ps", 0666,
2545 data->debugfs, data,
2546 &hwsim_fops_ps);
73606d00
DW		 2547 data->debugfs_group = debugfs_create_file("group", 0666,
2548 data->debugfs, data,
2549 &hwsim_fops_group);
fc6971d4 2550
01e59e46
TP		 2551 tasklet_hrtimer_init(&data->beacon_timer,
2552 mac80211_hwsim_beacon,
2553 CLOCK_REALTIME, HRTIMER_MODE_ABS);
0e057d73
JB		 2554
2555 list_add_tail(&data->list, &hwsim_radios);
acc1e7a3
JM		 2556 }
2557
2558 hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
bcdd8220
WY		 2559 if (hwsim_mon == NULL) {
2560 err = -ENOMEM;
acc1e7a3 2561 goto failed;
bcdd8220 2562 }
acc1e7a3 2563
7882513b
JL		 2564 rtnl_lock();
2565
2566 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
3a33cc10 2567 if (err < 0)
acc1e7a3 2568 goto failed_mon;
3a33cc10 2569
7882513b
JL		 2570
2571 err = register_netdevice(hwsim_mon);
2572 if (err < 0)
2573 goto failed_mon;
2574
2575 rtnl_unlock();
2576
2577 err = hwsim_init_netlink();
2578 if (err < 0)
2579 goto failed_nl;
2580
acc1e7a3
JM		 2581 return 0;
2582
7882513b
JL		 2583failed_nl:
2584 printk(KERN_DEBUG "mac_80211_hwsim: failed initializing netlink\n");
2585 return err;
2586
acc1e7a3
JM		 2587failed_mon:
2588 rtnl_unlock();
2589 free_netdev(hwsim_mon);
3a33cc10
IS		 2590 mac80211_hwsim_free();
2591 return err;
acc1e7a3 2592
3a33cc10
IS		 2593failed_hw:
2594 device_unregister(data->dev);
2595failed_drvdata:
2596 ieee80211_free_hw(hw);
acc1e7a3
JM		 2597failed:
2598 mac80211_hwsim_free();
9ea92774 2599failed_unregister_driver:
c07fe5ae 2600 platform_driver_unregister(&mac80211_hwsim_driver);
acc1e7a3
JM		 2601 return err;
2602}
f8fffc7e 2603module_init(init_mac80211_hwsim);
acc1e7a3
JM		 2604
2605static void __exit exit_mac80211_hwsim(void)
2606{
0e057d73 2607 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
acc1e7a3 2608
7882513b
JL		 2609 hwsim_exit_netlink();
2610
acc1e7a3 2611 mac80211_hwsim_free();
5d416351 2612 unregister_netdev(hwsim_mon);
c07fe5ae 2613 platform_driver_unregister(&mac80211_hwsim_driver);
acc1e7a3 2614}
acc1e7a3 2615module_exit(exit_mac80211_hwsim);
Linux kernel - Deliverables
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