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mac80211_hwsim: use debugfs_remove_recursive
[mirror_ubuntu-bionic-kernel.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,
8fe02e16 162 NL80211_RRF_NO_IR),
4a5af9c2
LR		 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;
73606d00 356
7882513b 357 struct sk_buff_head pending; /* packets pending */
73606d00
DW		 358 /*
359 * Only radios in the same group can communicate together (the
360 * channel has to match too). Each bit represents a group. A
361 * radio can be in more then one group.
362 */
363 u64 group;
bdd7bd16
BG		 364
365 int power_level;
2f40b940
JC		 366
367 /* difference between this hw's clock and the real clock, in usecs */
45034bfb 368 s64 tsf_offset;
c51f8783 369 s64 bcn_delta;
b66851c3
TP		 370 /* absolute beacon transmission time. Used to cover up "tx" delay. */
371 u64 abs_bcn_ts;
acc1e7a3
JM		 372};
373
374
375struct hwsim_radiotap_hdr {
376 struct ieee80211_radiotap_header hdr;
2f40b940 377 __le64 rt_tsft;
acc1e7a3
JM		 378 u8 rt_flags;
379 u8 rt_rate;
380 __le16 rt_channel;
381 __le16 rt_chbitmask;
ba2d3587 382} __packed;
acc1e7a3 383
7882513b
JL		 384/* MAC80211_HWSIM netlinf family */
385static struct genl_family hwsim_genl_family = {
386 .id = GENL_ID_GENERATE,
387 .hdrsize = 0,
388 .name = "MAC80211_HWSIM",
389 .version = 1,
390 .maxattr = HWSIM_ATTR_MAX,
391};
392
393/* MAC80211_HWSIM netlink policy */
394
395static struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
396 [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC,
397 .len = 6*sizeof(u8) },
398 [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC,
399 .len = 6*sizeof(u8) },
400 [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
401 .len = IEEE80211_MAX_DATA_LEN },
402 [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
403 [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
404 [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
405 [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC,
406 .len = IEEE80211_TX_MAX_RATES*sizeof(
407 struct hwsim_tx_rate)},
408 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
409};
acc1e7a3 410
d0cf9c0d
SH		 411static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
412 struct net_device *dev)
acc1e7a3
JM		 413{
414 /* TODO: allow packet injection */
415 dev_kfree_skb(skb);
6ed10654 416 return NETDEV_TX_OK;
acc1e7a3
JM		 417}
418
b66851c3
TP		 419static inline u64 mac80211_hwsim_get_tsf_raw(void)
420{
421 return ktime_to_us(ktime_get_real());
422}
423
2f40b940
JC		 424static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
425{
b66851c3 426 u64 now = mac80211_hwsim_get_tsf_raw();
2f40b940
JC		 427 return cpu_to_le64(now + data->tsf_offset);
428}
acc1e7a3 429
12ce8ba3 430static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
b66851c3 431 struct ieee80211_vif *vif)
12ce8ba3
JC		 432{
433 struct mac80211_hwsim_data *data = hw->priv;
434 return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
435}
436
437static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
438 struct ieee80211_vif *vif, u64 tsf)
439{
440 struct mac80211_hwsim_data *data = hw->priv;
45034bfb 441 u64 now = mac80211_hwsim_get_tsf(hw, vif);
c51f8783 442 u32 bcn_int = data->beacon_int;
45034bfb
TP		 443 s64 delta = tsf - now;
444
445 data->tsf_offset += delta;
c51f8783
TP		 446 /* adjust after beaconing with new timestamp at old TBTT */
447 data->bcn_delta = do_div(delta, bcn_int);
12ce8ba3
JC		 448}
449
acc1e7a3 450static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
e8261171
JB		 451 struct sk_buff *tx_skb,
452 struct ieee80211_channel *chan)
acc1e7a3
JM		 453{
454 struct mac80211_hwsim_data *data = hw->priv;
455 struct sk_buff *skb;
456 struct hwsim_radiotap_hdr *hdr;
457 u16 flags;
458 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
459 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
460
461 if (!netif_running(hwsim_mon))
462 return;
463
464 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
465 if (skb == NULL)
466 return;
467
468 hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
469 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
470 hdr->hdr.it_pad = 0;
471 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
f248f105
JM		 472 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
473 (1 << IEEE80211_RADIOTAP_RATE) |
2f40b940 474 (1 << IEEE80211_RADIOTAP_TSFT) |
f248f105 475 (1 << IEEE80211_RADIOTAP_CHANNEL));
2f40b940 476 hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
acc1e7a3
JM		 477 hdr->rt_flags = 0;
478 hdr->rt_rate = txrate->bitrate / 5;
e8261171 479 hdr->rt_channel = cpu_to_le16(chan->center_freq);
acc1e7a3
JM		 480 flags = IEEE80211_CHAN_2GHZ;
481 if (txrate->flags & IEEE80211_RATE_ERP_G)
482 flags |= IEEE80211_CHAN_OFDM;
483 else
484 flags |= IEEE80211_CHAN_CCK;
485 hdr->rt_chbitmask = cpu_to_le16(flags);
486
487 skb->dev = hwsim_mon;
488 skb_set_mac_header(skb, 0);
489 skb->ip_summed = CHECKSUM_UNNECESSARY;
490 skb->pkt_type = PACKET_OTHERHOST;
f248f105 491 skb->protocol = htons(ETH_P_802_2);
acc1e7a3
JM		 492 memset(skb->cb, 0, sizeof(skb->cb));
493 netif_rx(skb);
494}
495
496
e8261171
JB		 497static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
498 const u8 *addr)
6c085227 499{
6c085227
JM		 500 struct sk_buff *skb;
501 struct hwsim_radiotap_hdr *hdr;
502 u16 flags;
503 struct ieee80211_hdr *hdr11;
504
505 if (!netif_running(hwsim_mon))
506 return;
507
508 skb = dev_alloc_skb(100);
509 if (skb == NULL)
510 return;
511
512 hdr = (struct hwsim_radiotap_hdr *) skb_put(skb, sizeof(*hdr));
513 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
514 hdr->hdr.it_pad = 0;
515 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
516 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
517 (1 << IEEE80211_RADIOTAP_CHANNEL));
518 hdr->rt_flags = 0;
519 hdr->rt_rate = 0;
e8261171 520 hdr->rt_channel = cpu_to_le16(chan->center_freq);
6c085227
JM		 521 flags = IEEE80211_CHAN_2GHZ;
522 hdr->rt_chbitmask = cpu_to_le16(flags);
523
524 hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
525 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
526 IEEE80211_STYPE_ACK);
527 hdr11->duration_id = cpu_to_le16(0);
528 memcpy(hdr11->addr1, addr, ETH_ALEN);
529
530 skb->dev = hwsim_mon;
531 skb_set_mac_header(skb, 0);
532 skb->ip_summed = CHECKSUM_UNNECESSARY;
533 skb->pkt_type = PACKET_OTHERHOST;
534 skb->protocol = htons(ETH_P_802_2);
535 memset(skb->cb, 0, sizeof(skb->cb));
536 netif_rx(skb);
537}
538
539
fc6971d4
JM		 540static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
541 struct sk_buff *skb)
542{
543 switch (data->ps) {
544 case PS_DISABLED:
545 return true;
546 case PS_ENABLED:
547 return false;
548 case PS_AUTO_POLL:
549 /* TODO: accept (some) Beacons by default and other frames only
550 * if pending PS-Poll has been sent */
551 return true;
552 case PS_MANUAL_POLL:
553 /* Allow unicast frames to own address if there is a pending
554 * PS-Poll */
555 if (data->ps_poll_pending &&
556 memcmp(data->hw->wiphy->perm_addr, skb->data + 4,
557 ETH_ALEN) == 0) {
558 data->ps_poll_pending = false;
559 return true;
560 }
561 return false;
562 }
563
564 return true;
565}
566
567
265dc7f0
JM		 568struct mac80211_hwsim_addr_match_data {
569 bool ret;
570 const u8 *addr;
571};
572
573static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
574 struct ieee80211_vif *vif)
575{
576 struct mac80211_hwsim_addr_match_data *md = data;
577 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
578 md->ret = true;
579}
580
581
582static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
583 const u8 *addr)
584{
585 struct mac80211_hwsim_addr_match_data md;
586
587 if (memcmp(addr, data->hw->wiphy->perm_addr, ETH_ALEN) == 0)
588 return true;
589
590 md.ret = false;
591 md.addr = addr;
592 ieee80211_iterate_active_interfaces_atomic(data->hw,
8b2c9824 593 IEEE80211_IFACE_ITER_NORMAL,
265dc7f0
JM		 594 mac80211_hwsim_addr_iter,
595 &md);
596
597 return md.ret;
598}
599
7882513b
JL		 600static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
601 struct sk_buff *my_skb,
15e47304 602 int dst_portid)
7882513b
JL		 603{
604 struct sk_buff *skb;
605 struct mac80211_hwsim_data *data = hw->priv;
606 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
607 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
608 void *msg_head;
609 unsigned int hwsim_flags = 0;
610 int i;
611 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
612
7882513b
JL		 613 if (data->ps != PS_DISABLED)
614 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
615 /* If the queue contains MAX_QUEUE skb's drop some */
616 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
617 /* Droping until WARN_QUEUE level */
618 while (skb_queue_len(&data->pending) >= WARN_QUEUE)
619 skb_dequeue(&data->pending);
620 }
621
58050fce 622 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
7882513b
JL		 623 if (skb == NULL)
624 goto nla_put_failure;
625
626 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
627 HWSIM_CMD_FRAME);
628 if (msg_head == NULL) {
629 printk(KERN_DEBUG "mac80211_hwsim: problem with msg_head\n");
630 goto nla_put_failure;
631 }
632
633c9389
DM		 633 if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
634 sizeof(struct mac_address), data->addresses[1].addr))
635 goto nla_put_failure;
265dc7f0 636
7882513b 637 /* We get the skb->data */
633c9389
DM		 638 if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
639 goto nla_put_failure;
7882513b
JL		 640
641 /* We get the flags for this transmission, and we translate them to
642 wmediumd flags */
643
644 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
645 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
646
647 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
648 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
649
633c9389
DM		 650 if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
651 goto nla_put_failure;
7882513b
JL		 652
653 /* We get the tx control (rate and retries) info*/
654
655 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
656 tx_attempts[i].idx = info->status.rates[i].idx;
657 tx_attempts[i].count = info->status.rates[i].count;
658 }
659
633c9389
DM		 660 if (nla_put(skb, HWSIM_ATTR_TX_INFO,
661 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
662 tx_attempts))
663 goto nla_put_failure;
7882513b
JL		 664
665 /* We create a cookie to identify this skb */
633c9389
DM		 666 if (nla_put_u64(skb, HWSIM_ATTR_COOKIE, (unsigned long) my_skb))
667 goto nla_put_failure;
7882513b
JL		 668
669 genlmsg_end(skb, msg_head);
15e47304 670 genlmsg_unicast(&init_net, skb, dst_portid);
7882513b
JL		 671
672 /* Enqueue the packet */
673 skb_queue_tail(&data->pending, my_skb);
674 return;
675
676nla_put_failure:
c393862f 677 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 678}
679
e8261171
JB		 680static bool hwsim_chans_compat(struct ieee80211_channel *c1,
681 struct ieee80211_channel *c2)
682{
683 if (!c1 || !c2)
684 return false;
685
686 return c1->center_freq == c2->center_freq;
687}
688
689struct tx_iter_data {
690 struct ieee80211_channel *channel;
691 bool receive;
692};
693
694static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
695 struct ieee80211_vif *vif)
696{
697 struct tx_iter_data *data = _data;
698
699 if (!vif->chanctx_conf)
700 return;
701
702 if (!hwsim_chans_compat(data->channel,
4bf88530 703 rcu_dereference(vif->chanctx_conf)->def.chan))
e8261171
JB		 704 return;
705
706 data->receive = true;
707}
708
7882513b 709static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
e8261171
JB		 710 struct sk_buff *skb,
711 struct ieee80211_channel *chan)
acc1e7a3 712{
0e057d73
JB		 713 struct mac80211_hwsim_data *data = hw->priv, *data2;
714 bool ack = false;
e36cfdc9 715 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
acc1e7a3 716 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
e36cfdc9 717 struct ieee80211_rx_status rx_status;
b66851c3 718 u64 now;
acc1e7a3
JM		 719
720 memset(&rx_status, 0, sizeof(rx_status));
f4bda337 721 rx_status.flag |= RX_FLAG_MACTIME_START;
e8261171
JB		 722 rx_status.freq = chan->center_freq;
723 rx_status.band = chan->band;
dad6330d
KB		 724 if (info->control.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) {
725 rx_status.rate_idx =
726 ieee80211_rate_get_vht_mcs(&info->control.rates[0]);
727 rx_status.vht_nss =
728 ieee80211_rate_get_vht_nss(&info->control.rates[0]);
729 rx_status.flag |= RX_FLAG_VHT;
730 } else {
731 rx_status.rate_idx = info->control.rates[0].idx;
732 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
733 rx_status.flag |= RX_FLAG_HT;
734 }
281ed297
JM		 735 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
736 rx_status.flag |= RX_FLAG_40MHZ;
737 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
738 rx_status.flag |= RX_FLAG_SHORT_GI;
4b14c96d 739 /* TODO: simulate real signal strength (and optional packet loss) */
bdd7bd16 740 rx_status.signal = data->power_level - 50;
acc1e7a3 741
fc6971d4
JM		 742 if (data->ps != PS_DISABLED)
743 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
744
90e3012e
JB		 745 /* release the skb's source info */
746 skb_orphan(skb);
c0acf38e 747 skb_dst_drop(skb);
90e3012e
JB		 748 skb->mark = 0;
749 secpath_reset(skb);
750 nf_reset(skb);
751
b66851c3
TP		 752 /*
753 * Get absolute mactime here so all HWs RX at the "same time", and
754 * absolute TX time for beacon mactime so the timestamp matches.
755 * Giving beacons a different mactime than non-beacons looks messy, but
756 * it helps the Toffset be exact and a ~10us mactime discrepancy
757 * probably doesn't really matter.
758 */
759 if (ieee80211_is_beacon(hdr->frame_control) ||
760 ieee80211_is_probe_resp(hdr->frame_control))
761 now = data->abs_bcn_ts;
762 else
763 now = mac80211_hwsim_get_tsf_raw();
764
acc1e7a3 765 /* Copy skb to all enabled radios that are on the current frequency */
0e057d73
JB		 766 spin_lock(&hwsim_radio_lock);
767 list_for_each_entry(data2, &hwsim_radios, list) {
acc1e7a3 768 struct sk_buff *nskb;
e8261171
JB		 769 struct tx_iter_data tx_iter_data = {
770 .receive = false,
771 .channel = chan,
772 };
acc1e7a3 773
0e057d73 774 if (data == data2)
acc1e7a3 775 continue;
0e057d73 776
e8261171
JB		 777 if (!data2->started || (data2->idle && !data2->tmp_chan) ||
778 !hwsim_ps_rx_ok(data2, skb))
acc1e7a3
JM		 779 continue;
780
e8261171
JB		 781 if (!(data->group & data2->group))
782 continue;
783
784 if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
785 !hwsim_chans_compat(chan, data2->channel)) {
786 ieee80211_iterate_active_interfaces_atomic(
8b2c9824
JB		 787 data2->hw, IEEE80211_IFACE_ITER_NORMAL,
788 mac80211_hwsim_tx_iter, &tx_iter_data);
e8261171
JB		 789 if (!tx_iter_data.receive)
790 continue;
791 }
792
90b9e446
JB		 793 /*
794 * reserve some space for our vendor and the normal
795 * radiotap header, since we're copying anyway
796 */
a357d7f9
JB		 797 if (skb->len < PAGE_SIZE && paged_rx) {
798 struct page *page = alloc_page(GFP_ATOMIC);
799
800 if (!page)
801 continue;
802
803 nskb = dev_alloc_skb(128);
804 if (!nskb) {
805 __free_page(page);
806 continue;
807 }
808
809 memcpy(page_address(page), skb->data, skb->len);
810 skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
811 } else {
812 nskb = skb_copy(skb, GFP_ATOMIC);
813 if (!nskb)
814 continue;
815 }
acc1e7a3 816
265dc7f0 817 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
0e057d73 818 ack = true;
f483ad25 819
b66851c3 820 rx_status.mactime = now + data2->tsf_offset;
90b9e446
JB		 821#if 0
822 /*
823 * Don't enable this code by default as the OUI 00:00:00
824 * is registered to Xerox so we shouldn't use it here, it
825 * might find its way into pcap files.
826 * Note that this code requires the headroom in the SKB
827 * that was allocated earlier.
828 */
829 rx_status.vendor_radiotap_oui[0] = 0x00;
830 rx_status.vendor_radiotap_oui[1] = 0x00;
831 rx_status.vendor_radiotap_oui[2] = 0x00;
832 rx_status.vendor_radiotap_subns = 127;
833 /*
834 * Radiotap vendor namespaces can (and should) also be
835 * split into fields by using the standard radiotap
836 * presence bitmap mechanism. Use just BIT(0) here for
837 * the presence bitmap.
838 */
839 rx_status.vendor_radiotap_bitmap = BIT(0);
840 /* We have 8 bytes of (dummy) data */
841 rx_status.vendor_radiotap_len = 8;
842 /* For testing, also require it to be aligned */
843 rx_status.vendor_radiotap_align = 8;
844 /* push the data */
845 memcpy(skb_push(nskb, 8), "ABCDEFGH", 8);
846#endif
847
f1d58c25
JB		 848 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
849 ieee80211_rx_irqsafe(data2->hw, nskb);
acc1e7a3 850 }
0e057d73 851 spin_unlock(&hwsim_radio_lock);
acc1e7a3 852
e36cfdc9
JM		 853 return ack;
854}
855
36323f81
TH		 856static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
857 struct ieee80211_tx_control *control,
858 struct sk_buff *skb)
e36cfdc9 859{
e8261171
JB		 860 struct mac80211_hwsim_data *data = hw->priv;
861 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
862 struct ieee80211_chanctx_conf *chanctx_conf;
863 struct ieee80211_channel *channel;
0e057d73 864 bool ack;
15e47304 865 u32 _portid;
e36cfdc9 866
e8261171 867 if (WARN_ON(skb->len < 10)) {
e36cfdc9 868 /* Should not happen; just a sanity check for addr1 use */
fe0f3cd2 869 ieee80211_free_txskb(hw, skb);
7bb45683 870 return;
e36cfdc9
JM		 871 }
872
e8261171
JB		 873 if (channels == 1) {
874 channel = data->channel;
875 } else if (txi->hw_queue == 4) {
876 channel = data->tmp_chan;
877 } else {
878 chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf);
879 if (chanctx_conf)
4bf88530 880 channel = chanctx_conf->def.chan;
e8261171
JB		 881 else
882 channel = NULL;
883 }
884
885 if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
fe0f3cd2 886 ieee80211_free_txskb(hw, skb);
e8261171
JB		 887 return;
888 }
889
890 if (data->idle && !data->tmp_chan) {
891 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
fe0f3cd2 892 ieee80211_free_txskb(hw, skb);
e8261171
JB		 893 return;
894 }
895
896 if (txi->control.vif)
897 hwsim_check_magic(txi->control.vif);
898 if (control->sta)
899 hwsim_check_sta_magic(control->sta);
900
1eb32179
KB		 901 if (rctbl)
902 ieee80211_get_tx_rates(txi->control.vif, control->sta, skb,
903 txi->control.rates,
904 ARRAY_SIZE(txi->control.rates));
e8261171 905
1eb32179 906 txi->rate_driver_data[0] = channel;
e8261171
JB		 907 mac80211_hwsim_monitor_rx(hw, skb, channel);
908
7882513b 909 /* wmediumd mode check */
15e47304 910 _portid = ACCESS_ONCE(wmediumd_portid);
7882513b 911
15e47304
EB		 912 if (_portid)
913 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
7882513b
JL		 914
915 /* NO wmediumd detected, perfect medium simulation */
e8261171 916 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
7882513b 917
6c085227
JM		 918 if (ack && skb->len >= 16) {
919 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
e8261171 920 mac80211_hwsim_monitor_ack(channel, hdr->addr2);
6c085227 921 }
e36cfdc9 922
e6a9854b 923 ieee80211_tx_info_clear_status(txi);
2a4ffa4c
JC		 924
925 /* frame was transmitted at most favorable rate at first attempt */
926 txi->control.rates[0].count = 1;
927 txi->control.rates[1].idx = -1;
928
e6a9854b
JB		 929 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
930 txi->flags |= IEEE80211_TX_STAT_ACK;
acc1e7a3 931 ieee80211_tx_status_irqsafe(hw, skb);
acc1e7a3
JM		 932}
933
934
935static int mac80211_hwsim_start(struct ieee80211_hw *hw)
936{
937 struct mac80211_hwsim_data *data = hw->priv;
c96c31e4 938 wiphy_debug(hw->wiphy, "%s\n", __func__);
3db1cd5c 939 data->started = true;
acc1e7a3
JM		 940 return 0;
941}
942
943
944static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
945{
946 struct mac80211_hwsim_data *data = hw->priv;
3db1cd5c 947 data->started = false;
01e59e46 948 tasklet_hrtimer_cancel(&data->beacon_timer);
c96c31e4 949 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 950}
951
952
953static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
1ed32e4f 954 struct ieee80211_vif *vif)
acc1e7a3 955{
c96c31e4 956 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 957 __func__, ieee80211_vif_type_p2p(vif),
958 vif->addr);
1ed32e4f 959 hwsim_set_magic(vif);
e8261171
JB		 960
961 vif->cab_queue = 0;
962 vif->hw_queue[IEEE80211_AC_VO] = 0;
963 vif->hw_queue[IEEE80211_AC_VI] = 1;
964 vif->hw_queue[IEEE80211_AC_BE] = 2;
965 vif->hw_queue[IEEE80211_AC_BK] = 3;
966
acc1e7a3
JM		 967 return 0;
968}
969
970
c35d0270
JB		 971static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
972 struct ieee80211_vif *vif,
2ca27bcf
JB		 973 enum nl80211_iftype newtype,
974 bool newp2p)
c35d0270 975{
2ca27bcf 976 newtype = ieee80211_iftype_p2p(newtype, newp2p);
c35d0270
JB		 977 wiphy_debug(hw->wiphy,
978 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
2ca27bcf
JB		 979 __func__, ieee80211_vif_type_p2p(vif),
980 newtype, vif->addr);
c35d0270
JB		 981 hwsim_check_magic(vif);
982
3eb92f6a
JB		 983 /*
984 * interface may change from non-AP to AP in
985 * which case this needs to be set up again
986 */
987 vif->cab_queue = 0;
988
c35d0270
JB		 989 return 0;
990}
991
acc1e7a3 992static void mac80211_hwsim_remove_interface(
1ed32e4f 993 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
acc1e7a3 994{
c96c31e4 995 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 996 __func__, ieee80211_vif_type_p2p(vif),
997 vif->addr);
1ed32e4f
JB		 998 hwsim_check_magic(vif);
999 hwsim_clear_magic(vif);
acc1e7a3
JM		 1000}
1001
e8261171
JB		 1002static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
1003 struct sk_buff *skb,
1004 struct ieee80211_channel *chan)
1005{
1006 u32 _pid = ACCESS_ONCE(wmediumd_portid);
1007
1eb32179
KB		 1008 if (rctbl) {
1009 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1010 ieee80211_get_tx_rates(txi->control.vif, NULL, skb,
1011 txi->control.rates,
1012 ARRAY_SIZE(txi->control.rates));
1013 }
1014
e8261171
JB		 1015 mac80211_hwsim_monitor_rx(hw, skb, chan);
1016
1017 if (_pid)
1018 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
1019
1020 mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
1021 dev_kfree_skb(skb);
1022}
acc1e7a3
JM		 1023
1024static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
1025 struct ieee80211_vif *vif)
1026{
b66851c3
TP		 1027 struct mac80211_hwsim_data *data = arg;
1028 struct ieee80211_hw *hw = data->hw;
1029 struct ieee80211_tx_info *info;
1030 struct ieee80211_rate *txrate;
1031 struct ieee80211_mgmt *mgmt;
acc1e7a3 1032 struct sk_buff *skb;
acc1e7a3 1033
8aa21e6f
JB		 1034 hwsim_check_magic(vif);
1035
55b39619 1036 if (vif->type != NL80211_IFTYPE_AP &&
2b2d7795
JB		 1037 vif->type != NL80211_IFTYPE_MESH_POINT &&
1038 vif->type != NL80211_IFTYPE_ADHOC)
acc1e7a3
JM		 1039 return;
1040
1041 skb = ieee80211_beacon_get(hw, vif);
1042 if (skb == NULL)
1043 return;
b66851c3 1044 info = IEEE80211_SKB_CB(skb);
1eb32179
KB		 1045 if (rctbl)
1046 ieee80211_get_tx_rates(vif, NULL, skb,
1047 info->control.rates,
1048 ARRAY_SIZE(info->control.rates));
1049
b66851c3
TP		 1050 txrate = ieee80211_get_tx_rate(hw, info);
1051
1052 mgmt = (struct ieee80211_mgmt *) skb->data;
1053 /* fake header transmission time */
1054 data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
1055 mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
1056 data->tsf_offset +
1057 24 * 8 * 10 / txrate->bitrate);
7882513b 1058
e8261171 1059 mac80211_hwsim_tx_frame(hw, skb,
4bf88530 1060 rcu_dereference(vif->chanctx_conf)->def.chan);
acc1e7a3
JM		 1061}
1062
01e59e46
TP		 1063static enum hrtimer_restart
1064mac80211_hwsim_beacon(struct hrtimer *timer)
acc1e7a3 1065{
01e59e46
TP		 1066 struct mac80211_hwsim_data *data =
1067 container_of(timer, struct mac80211_hwsim_data,
1068 beacon_timer.timer);
1069 struct ieee80211_hw *hw = data->hw;
1070 u64 bcn_int = data->beacon_int;
1071 ktime_t next_bcn;
acc1e7a3 1072
4c4c671a 1073 if (!data->started)
01e59e46 1074 goto out;
acc1e7a3 1075
f248f105 1076 ieee80211_iterate_active_interfaces_atomic(
8b2c9824 1077 hw, IEEE80211_IFACE_ITER_NORMAL,
b66851c3 1078 mac80211_hwsim_beacon_tx, data);
acc1e7a3 1079
c51f8783
TP		 1080 /* beacon at new TBTT + beacon interval */
1081 if (data->bcn_delta) {
1082 bcn_int -= data->bcn_delta;
1083 data->bcn_delta = 0;
1084 }
1085
01e59e46
TP		 1086 next_bcn = ktime_add(hrtimer_get_expires(timer),
1087 ns_to_ktime(bcn_int * 1000));
1088 tasklet_hrtimer_start(&data->beacon_timer, next_bcn, HRTIMER_MODE_ABS);
1089out:
1090 return HRTIMER_NORESTART;
acc1e7a3
JM		 1091}
1092
675a0b04
KB		 1093static const char * const hwsim_chanwidths[] = {
1094 [NL80211_CHAN_WIDTH_20_NOHT] = "noht",
1095 [NL80211_CHAN_WIDTH_20] = "ht20",
1096 [NL80211_CHAN_WIDTH_40] = "ht40",
1097 [NL80211_CHAN_WIDTH_80] = "vht80",
1098 [NL80211_CHAN_WIDTH_80P80] = "vht80p80",
1099 [NL80211_CHAN_WIDTH_160] = "vht160",
0aaffa9b 1100};
acc1e7a3 1101
e8975581 1102static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
acc1e7a3
JM		 1103{
1104 struct mac80211_hwsim_data *data = hw->priv;
e8975581 1105 struct ieee80211_conf *conf = &hw->conf;
0f78231b
JB		 1106 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
1107 [IEEE80211_SMPS_AUTOMATIC] = "auto",
1108 [IEEE80211_SMPS_OFF] = "off",
1109 [IEEE80211_SMPS_STATIC] = "static",
1110 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
1111 };
1112
675a0b04
KB		 1113 if (conf->chandef.chan)
1114 wiphy_debug(hw->wiphy,
1115 "%s (freq=%d(%d - %d)/%s idle=%d ps=%d smps=%s)\n",
1116 __func__,
1117 conf->chandef.chan->center_freq,
1118 conf->chandef.center_freq1,
1119 conf->chandef.center_freq2,
1120 hwsim_chanwidths[conf->chandef.width],
1121 !!(conf->flags & IEEE80211_CONF_IDLE),
1122 !!(conf->flags & IEEE80211_CONF_PS),
1123 smps_modes[conf->smps_mode]);
1124 else
1125 wiphy_debug(hw->wiphy,
1126 "%s (freq=0 idle=%d ps=%d smps=%s)\n",
1127 __func__,
1128 !!(conf->flags & IEEE80211_CONF_IDLE),
1129 !!(conf->flags & IEEE80211_CONF_PS),
1130 smps_modes[conf->smps_mode]);
acc1e7a3 1131
70541839
JM		 1132 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1133
675a0b04 1134 data->channel = conf->chandef.chan;
e8261171
JB		 1135
1136 WARN_ON(data->channel && channels > 1);
1137
bdd7bd16 1138 data->power_level = conf->power_level;
4c4c671a 1139 if (!data->started || !data->beacon_int)
01e59e46
TP		 1140 tasklet_hrtimer_cancel(&data->beacon_timer);
1141 else if (!hrtimer_is_queued(&data->beacon_timer.timer)) {
c51f8783
TP		 1142 u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
1143 u32 bcn_int = data->beacon_int;
1144 u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1145
01e59e46 1146 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1147 ns_to_ktime(until_tbtt * 1000),
01e59e46
TP		 1148 HRTIMER_MODE_REL);
1149 }
acc1e7a3
JM		 1150
1151 return 0;
1152}
1153
1154
1155static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
1156 unsigned int changed_flags,
3ac64bee 1157 unsigned int *total_flags,u64 multicast)
acc1e7a3
JM		 1158{
1159 struct mac80211_hwsim_data *data = hw->priv;
1160
c96c31e4 1161 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 1162
1163 data->rx_filter = 0;
1164 if (*total_flags & FIF_PROMISC_IN_BSS)
1165 data->rx_filter |= FIF_PROMISC_IN_BSS;
1166 if (*total_flags & FIF_ALLMULTI)
1167 data->rx_filter |= FIF_ALLMULTI;
1168
1169 *total_flags = data->rx_filter;
1170}
1171
0bb861e6
JM		 1172static void mac80211_hwsim_bcn_en_iter(void *data, u8 *mac,
1173 struct ieee80211_vif *vif)
1174{
1175 unsigned int *count = data;
1176 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1177
1178 if (vp->bcn_en)
1179 (*count)++;
1180}
1181
8aa21e6f
JB		 1182static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
1183 struct ieee80211_vif *vif,
1184 struct ieee80211_bss_conf *info,
1185 u32 changed)
1186{
fc6971d4 1187 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
57c4d7b4 1188 struct mac80211_hwsim_data *data = hw->priv;
fc6971d4 1189
8aa21e6f 1190 hwsim_check_magic(vif);
fe63bfa3 1191
0bb861e6
JM		 1192 wiphy_debug(hw->wiphy, "%s(changed=0x%x vif->addr=%pM)\n",
1193 __func__, changed, vif->addr);
fe63bfa3 1194
2d0ddec5 1195 if (changed & BSS_CHANGED_BSSID) {
c96c31e4
JP		 1196 wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
1197 __func__, info->bssid);
2d0ddec5
JB		 1198 memcpy(vp->bssid, info->bssid, ETH_ALEN);
1199 }
1200
fe63bfa3 1201 if (changed & BSS_CHANGED_ASSOC) {
c96c31e4
JP		 1202 wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
1203 info->assoc, info->aid);
fc6971d4
JM		 1204 vp->assoc = info->assoc;
1205 vp->aid = info->aid;
fe63bfa3
JM		 1206 }
1207
57c4d7b4 1208 if (changed & BSS_CHANGED_BEACON_INT) {
c96c31e4 1209 wiphy_debug(hw->wiphy, " BCNINT: %d\n", info->beacon_int);
01e59e46
TP		 1210 data->beacon_int = info->beacon_int * 1024;
1211 }
1212
1213 if (changed & BSS_CHANGED_BEACON_ENABLED) {
1214 wiphy_debug(hw->wiphy, " BCN EN: %d\n", info->enable_beacon);
0bb861e6 1215 vp->bcn_en = info->enable_beacon;
01e59e46
TP		 1216 if (data->started &&
1217 !hrtimer_is_queued(&data->beacon_timer.timer) &&
1218 info->enable_beacon) {
c51f8783
TP		 1219 u64 tsf, until_tbtt;
1220 u32 bcn_int;
01e59e46
TP		 1221 if (WARN_ON(!data->beacon_int))
1222 data->beacon_int = 1000 * 1024;
c51f8783
TP		 1223 tsf = mac80211_hwsim_get_tsf(hw, vif);
1224 bcn_int = data->beacon_int;
1225 until_tbtt = bcn_int - do_div(tsf, bcn_int);
01e59e46 1226 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1227 ns_to_ktime(until_tbtt * 1000),
01e59e46 1228 HRTIMER_MODE_REL);
0bb861e6
JM		 1229 } else if (!info->enable_beacon) {
1230 unsigned int count = 0;
1231 ieee80211_iterate_active_interfaces(
1232 data->hw, IEEE80211_IFACE_ITER_NORMAL,
1233 mac80211_hwsim_bcn_en_iter, &count);
1234 wiphy_debug(hw->wiphy, " beaconing vifs remaining: %u",
1235 count);
1236 if (count == 0)
1237 tasklet_hrtimer_cancel(&data->beacon_timer);
1238 }
57c4d7b4
JB		 1239 }
1240
fe63bfa3 1241 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
c96c31e4
JP		 1242 wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
1243 info->use_cts_prot);
fe63bfa3
JM		 1244 }
1245
1246 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
c96c31e4
JP		 1247 wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
1248 info->use_short_preamble);
fe63bfa3
JM		 1249 }
1250
1251 if (changed & BSS_CHANGED_ERP_SLOT) {
c96c31e4 1252 wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
fe63bfa3
JM		 1253 }
1254
1255 if (changed & BSS_CHANGED_HT) {
4bf88530
JB		 1256 wiphy_debug(hw->wiphy, " HT: op_mode=0x%x\n",
1257 info->ht_operation_mode);
fe63bfa3
JM		 1258 }
1259
1260 if (changed & BSS_CHANGED_BASIC_RATES) {
c96c31e4
JP		 1261 wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
1262 (unsigned long long) info->basic_rates);
fe63bfa3 1263 }
cbc668a7
JB		 1264
1265 if (changed & BSS_CHANGED_TXPOWER)
1266 wiphy_debug(hw->wiphy, " TX Power: %d dBm\n", info->txpower);
8aa21e6f
JB		 1267}
1268
1d669cbf
JB		 1269static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
1270 struct ieee80211_vif *vif,
1271 struct ieee80211_sta *sta)
1272{
1273 hwsim_check_magic(vif);
1274 hwsim_set_sta_magic(sta);
1275
1276 return 0;
1277}
1278
1279static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
1280 struct ieee80211_vif *vif,
1281 struct ieee80211_sta *sta)
1282{
1283 hwsim_check_magic(vif);
1284 hwsim_clear_sta_magic(sta);
1285
1286 return 0;
1287}
1288
8aa21e6f
JB		 1289static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
1290 struct ieee80211_vif *vif,
17741cdc
JB		 1291 enum sta_notify_cmd cmd,
1292 struct ieee80211_sta *sta)
8aa21e6f
JB		 1293{
1294 hwsim_check_magic(vif);
1d669cbf 1295
81c06523 1296 switch (cmd) {
89fad578
CL		 1297 case STA_NOTIFY_SLEEP:
1298 case STA_NOTIFY_AWAKE:
1299 /* TODO: make good use of these flags */
1300 break;
1d669cbf
JB		 1301 default:
1302 WARN(1, "Invalid sta notify: %d\n", cmd);
1303 break;
81c06523
JB		 1304 }
1305}
1306
1307static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
1308 struct ieee80211_sta *sta,
1309 bool set)
1310{
1311 hwsim_check_sta_magic(sta);
1312 return 0;
8aa21e6f 1313}
acc1e7a3 1314
1e898ff8 1315static int mac80211_hwsim_conf_tx(
8a3a3c85
EP		 1316 struct ieee80211_hw *hw,
1317 struct ieee80211_vif *vif, u16 queue,
1e898ff8
JM		 1318 const struct ieee80211_tx_queue_params *params)
1319{
c96c31e4
JP		 1320 wiphy_debug(hw->wiphy,
1321 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1322 __func__, queue,
1323 params->txop, params->cw_min,
1324 params->cw_max, params->aifs);
1e898ff8
JM		 1325 return 0;
1326}
1327
1289723e
HS		 1328static int mac80211_hwsim_get_survey(
1329 struct ieee80211_hw *hw, int idx,
1330 struct survey_info *survey)
1331{
1332 struct ieee80211_conf *conf = &hw->conf;
1333
c96c31e4 1334 wiphy_debug(hw->wiphy, "%s (idx=%d)\n", __func__, idx);
1289723e
HS		 1335
1336 if (idx != 0)
1337 return -ENOENT;
1338
1339 /* Current channel */
675a0b04 1340 survey->channel = conf->chandef.chan;
1289723e
HS		 1341
1342 /*
1343 * Magically conjured noise level --- this is only ok for simulated hardware.
1344 *
1345 * A real driver which cannot determine the real channel noise MUST NOT
1346 * report any noise, especially not a magically conjured one :-)
1347 */
1348 survey->filled = SURVEY_INFO_NOISE_DBM;
1349 survey->noise = -92;
1350
1351 return 0;
1352}
1353
aff89a9b
JB		 1354#ifdef CONFIG_NL80211_TESTMODE
1355/*
1356 * This section contains example code for using netlink
1357 * attributes with the testmode command in nl80211.
1358 */
1359
1360/* These enums need to be kept in sync with userspace */
1361enum hwsim_testmode_attr {
1362 __HWSIM_TM_ATTR_INVALID = 0,
1363 HWSIM_TM_ATTR_CMD = 1,
1364 HWSIM_TM_ATTR_PS = 2,
1365
1366 /* keep last */
1367 __HWSIM_TM_ATTR_AFTER_LAST,
1368 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1369};
1370
1371enum hwsim_testmode_cmd {
1372 HWSIM_TM_CMD_SET_PS = 0,
1373 HWSIM_TM_CMD_GET_PS = 1,
4d6d0ae2
JB		 1374 HWSIM_TM_CMD_STOP_QUEUES = 2,
1375 HWSIM_TM_CMD_WAKE_QUEUES = 3,
aff89a9b
JB		 1376};
1377
1378static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1379 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1380 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1381};
1382
1383static int hwsim_fops_ps_write(void *dat, u64 val);
1384
5bc38193 1385static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
52981cd7 1386 struct ieee80211_vif *vif,
5bc38193 1387 void *data, int len)
aff89a9b
JB		 1388{
1389 struct mac80211_hwsim_data *hwsim = hw->priv;
1390 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1391 struct sk_buff *skb;
1392 int err, ps;
1393
1394 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
1395 hwsim_testmode_policy);
1396 if (err)
1397 return err;
1398
1399 if (!tb[HWSIM_TM_ATTR_CMD])
1400 return -EINVAL;
1401
1402 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1403 case HWSIM_TM_CMD_SET_PS:
1404 if (!tb[HWSIM_TM_ATTR_PS])
1405 return -EINVAL;
1406 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1407 return hwsim_fops_ps_write(hwsim, ps);
1408 case HWSIM_TM_CMD_GET_PS:
1409 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1410 nla_total_size(sizeof(u32)));
1411 if (!skb)
1412 return -ENOMEM;
633c9389
DM		 1413 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
1414 goto nla_put_failure;
aff89a9b 1415 return cfg80211_testmode_reply(skb);
4d6d0ae2
JB		 1416 case HWSIM_TM_CMD_STOP_QUEUES:
1417 ieee80211_stop_queues(hw);
1418 return 0;
1419 case HWSIM_TM_CMD_WAKE_QUEUES:
1420 ieee80211_wake_queues(hw);
1421 return 0;
aff89a9b
JB		 1422 default:
1423 return -EOPNOTSUPP;
1424 }
1425
1426 nla_put_failure:
1427 kfree_skb(skb);
1428 return -ENOBUFS;
1429}
1430#endif
1431
8b73d13a
JB		 1432static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1433 struct ieee80211_vif *vif,
1434 enum ieee80211_ampdu_mlme_action action,
0b01f030
JB		 1435 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
1436 u8 buf_size)
8b73d13a
JB		 1437{
1438 switch (action) {
1439 case IEEE80211_AMPDU_TX_START:
1440 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1441 break;
18b559d5
JB		 1442 case IEEE80211_AMPDU_TX_STOP_CONT:
1443 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1444 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
8b73d13a
JB		 1445 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1446 break;
1447 case IEEE80211_AMPDU_TX_OPERATIONAL:
1448 break;
1449 case IEEE80211_AMPDU_RX_START:
1450 case IEEE80211_AMPDU_RX_STOP:
1451 break;
1452 default:
1453 return -EOPNOTSUPP;
1454 }
1455
1456 return 0;
1457}
1458
39ecc01d 1459static void mac80211_hwsim_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
a80f7c0b 1460{
7882513b 1461 /* Not implemented, queues only on kernel side */
a80f7c0b
JB		 1462}
1463
e8261171 1464static void hw_scan_work(struct work_struct *work)
69068036 1465{
e8261171
JB		 1466 struct mac80211_hwsim_data *hwsim =
1467 container_of(work, struct mac80211_hwsim_data, hw_scan.work);
1468 struct cfg80211_scan_request *req = hwsim->hw_scan_request;
1469 int dwell, i;
69068036 1470
e8261171
JB		 1471 mutex_lock(&hwsim->mutex);
1472 if (hwsim->scan_chan_idx >= req->n_channels) {
1473 wiphy_debug(hwsim->hw->wiphy, "hw scan complete\n");
1474 ieee80211_scan_completed(hwsim->hw, false);
1475 hwsim->hw_scan_request = NULL;
1476 hwsim->hw_scan_vif = NULL;
1477 hwsim->tmp_chan = NULL;
1478 mutex_unlock(&hwsim->mutex);
1479 return;
1480 }
1481
1482 wiphy_debug(hwsim->hw->wiphy, "hw scan %d MHz\n",
1483 req->channels[hwsim->scan_chan_idx]->center_freq);
1484
1485 hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
8fe02e16 1486 if (hwsim->tmp_chan->flags & IEEE80211_CHAN_NO_IR ||
e8261171
JB		 1487 !req->n_ssids) {
1488 dwell = 120;
1489 } else {
1490 dwell = 30;
1491 /* send probes */
1492 for (i = 0; i < req->n_ssids; i++) {
1493 struct sk_buff *probe;
1494
1495 probe = ieee80211_probereq_get(hwsim->hw,
1496 hwsim->hw_scan_vif,
1497 req->ssids[i].ssid,
1498 req->ssids[i].ssid_len,
b9a9ada1 1499 req->ie_len);
e8261171
JB		 1500 if (!probe)
1501 continue;
b9a9ada1
JB		 1502
1503 if (req->ie_len)
1504 memcpy(skb_put(probe, req->ie_len), req->ie,
1505 req->ie_len);
1506
e8261171
JB		 1507 local_bh_disable();
1508 mac80211_hwsim_tx_frame(hwsim->hw, probe,
1509 hwsim->tmp_chan);
1510 local_bh_enable();
1511 }
1512 }
1513 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
1514 msecs_to_jiffies(dwell));
1515 hwsim->scan_chan_idx++;
1516 mutex_unlock(&hwsim->mutex);
69068036
JB		 1517}
1518
1519static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
a060bbfe 1520 struct ieee80211_vif *vif,
69068036
JB		 1521 struct cfg80211_scan_request *req)
1522{
e8261171 1523 struct mac80211_hwsim_data *hwsim = hw->priv;
69068036 1524
e8261171
JB		 1525 mutex_lock(&hwsim->mutex);
1526 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1527 mutex_unlock(&hwsim->mutex);
1528 return -EBUSY;
1529 }
1530 hwsim->hw_scan_request = req;
1531 hwsim->hw_scan_vif = vif;
1532 hwsim->scan_chan_idx = 0;
1533 mutex_unlock(&hwsim->mutex);
69068036 1534
e8261171 1535 wiphy_debug(hw->wiphy, "hwsim hw_scan request\n");
69068036 1536
e8261171 1537 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
69068036
JB		 1538
1539 return 0;
1540}
1541
e8261171
JB		 1542static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
1543 struct ieee80211_vif *vif)
1544{
1545 struct mac80211_hwsim_data *hwsim = hw->priv;
1546
1547 wiphy_debug(hw->wiphy, "hwsim cancel_hw_scan\n");
1548
1549 cancel_delayed_work_sync(&hwsim->hw_scan);
1550
1551 mutex_lock(&hwsim->mutex);
1552 ieee80211_scan_completed(hwsim->hw, true);
1553 hwsim->tmp_chan = NULL;
1554 hwsim->hw_scan_request = NULL;
1555 hwsim->hw_scan_vif = NULL;
1556 mutex_unlock(&hwsim->mutex);
1557}
1558
f74cb0f7
LR		 1559static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw)
1560{
1561 struct mac80211_hwsim_data *hwsim = hw->priv;
1562
1563 mutex_lock(&hwsim->mutex);
1564
1565 if (hwsim->scanning) {
1566 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
1567 goto out;
1568 }
1569
1570 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
1571 hwsim->scanning = true;
1572
1573out:
1574 mutex_unlock(&hwsim->mutex);
1575}
1576
1577static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw)
1578{
1579 struct mac80211_hwsim_data *hwsim = hw->priv;
1580
1581 mutex_lock(&hwsim->mutex);
1582
1583 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
23ff98fc 1584 hwsim->scanning = false;
f74cb0f7
LR		 1585
1586 mutex_unlock(&hwsim->mutex);
1587}
1588
e8261171
JB		 1589static void hw_roc_done(struct work_struct *work)
1590{
1591 struct mac80211_hwsim_data *hwsim =
1592 container_of(work, struct mac80211_hwsim_data, roc_done.work);
1593
1594 mutex_lock(&hwsim->mutex);
1595 ieee80211_remain_on_channel_expired(hwsim->hw);
1596 hwsim->tmp_chan = NULL;
1597 mutex_unlock(&hwsim->mutex);
1598
1599 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC expired\n");
1600}
1601
1602static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
49884568 1603 struct ieee80211_vif *vif,
e8261171 1604 struct ieee80211_channel *chan,
d339d5ca
IP		 1605 int duration,
1606 enum ieee80211_roc_type type)
e8261171
JB		 1607{
1608 struct mac80211_hwsim_data *hwsim = hw->priv;
1609
1610 mutex_lock(&hwsim->mutex);
1611 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1612 mutex_unlock(&hwsim->mutex);
1613 return -EBUSY;
1614 }
1615
1616 hwsim->tmp_chan = chan;
1617 mutex_unlock(&hwsim->mutex);
1618
1619 wiphy_debug(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
1620 chan->center_freq, duration);
1621
1622 ieee80211_ready_on_channel(hw);
1623
1624 ieee80211_queue_delayed_work(hw, &hwsim->roc_done,
1625 msecs_to_jiffies(duration));
1626 return 0;
1627}
1628
1629static int mac80211_hwsim_croc(struct ieee80211_hw *hw)
1630{
1631 struct mac80211_hwsim_data *hwsim = hw->priv;
1632
1633 cancel_delayed_work_sync(&hwsim->roc_done);
1634
1635 mutex_lock(&hwsim->mutex);
1636 hwsim->tmp_chan = NULL;
1637 mutex_unlock(&hwsim->mutex);
1638
1639 wiphy_debug(hw->wiphy, "hwsim ROC canceled\n");
1640
1641 return 0;
1642}
1643
1644static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
1645 struct ieee80211_chanctx_conf *ctx)
1646{
1647 hwsim_set_chanctx_magic(ctx);
4bf88530
JB		 1648 wiphy_debug(hw->wiphy,
1649 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1650 ctx->def.chan->center_freq, ctx->def.width,
1651 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1652 return 0;
1653}
1654
1655static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
1656 struct ieee80211_chanctx_conf *ctx)
1657{
4bf88530
JB		 1658 wiphy_debug(hw->wiphy,
1659 "remove 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 hwsim_check_chanctx_magic(ctx);
1663 hwsim_clear_chanctx_magic(ctx);
1664}
1665
1666static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
1667 struct ieee80211_chanctx_conf *ctx,
1668 u32 changed)
1669{
1670 hwsim_check_chanctx_magic(ctx);
4bf88530
JB		 1671 wiphy_debug(hw->wiphy,
1672 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1673 ctx->def.chan->center_freq, ctx->def.width,
1674 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1675}
1676
1677static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
1678 struct ieee80211_vif *vif,
1679 struct ieee80211_chanctx_conf *ctx)
1680{
1681 hwsim_check_magic(vif);
1682 hwsim_check_chanctx_magic(ctx);
1683
1684 return 0;
1685}
1686
1687static void mac80211_hwsim_unassign_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
69068036 1695static struct ieee80211_ops mac80211_hwsim_ops =
acc1e7a3
JM		 1696{
1697 .tx = mac80211_hwsim_tx,
1698 .start = mac80211_hwsim_start,
1699 .stop = mac80211_hwsim_stop,
1700 .add_interface = mac80211_hwsim_add_interface,
c35d0270 1701 .change_interface = mac80211_hwsim_change_interface,
acc1e7a3
JM		 1702 .remove_interface = mac80211_hwsim_remove_interface,
1703 .config = mac80211_hwsim_config,
1704 .configure_filter = mac80211_hwsim_configure_filter,
8aa21e6f 1705 .bss_info_changed = mac80211_hwsim_bss_info_changed,
1d669cbf
JB		 1706 .sta_add = mac80211_hwsim_sta_add,
1707 .sta_remove = mac80211_hwsim_sta_remove,
8aa21e6f 1708 .sta_notify = mac80211_hwsim_sta_notify,
81c06523 1709 .set_tim = mac80211_hwsim_set_tim,
1e898ff8 1710 .conf_tx = mac80211_hwsim_conf_tx,
1289723e 1711 .get_survey = mac80211_hwsim_get_survey,
aff89a9b 1712 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
8b73d13a 1713 .ampdu_action = mac80211_hwsim_ampdu_action,
f74cb0f7
LR		 1714 .sw_scan_start = mac80211_hwsim_sw_scan,
1715 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
a80f7c0b 1716 .flush = mac80211_hwsim_flush,
12ce8ba3
JC		 1717 .get_tsf = mac80211_hwsim_get_tsf,
1718 .set_tsf = mac80211_hwsim_set_tsf,
acc1e7a3
JM		 1719};
1720
1721
1722static void mac80211_hwsim_free(void)
1723{
0e057d73 1724 struct list_head tmplist, *i, *tmp;
e603d9d8 1725 struct mac80211_hwsim_data *data, *tmpdata;
0e057d73
JB		 1726
1727 INIT_LIST_HEAD(&tmplist);
1728
1729 spin_lock_bh(&hwsim_radio_lock);
1730 list_for_each_safe(i, tmp, &hwsim_radios)
1731 list_move(i, &tmplist);
1732 spin_unlock_bh(&hwsim_radio_lock);
1733
e603d9d8 1734 list_for_each_entry_safe(data, tmpdata, &tmplist, list) {
70526e54 1735 debugfs_remove_recursive(data->debugfs);
0e057d73 1736 ieee80211_unregister_hw(data->hw);
9ea92774 1737 device_release_driver(data->dev);
0e057d73
JB		 1738 device_unregister(data->dev);
1739 ieee80211_free_hw(data->hw);
acc1e7a3 1740 }
acc1e7a3
JM		 1741 class_destroy(hwsim_class);
1742}
1743
c07fe5ae
SL		 1744static struct platform_driver mac80211_hwsim_driver = {
1745 .driver = {
1746 .name = "mac80211_hwsim",
1747 .owner = THIS_MODULE,
1748 },
acc1e7a3
JM		 1749};
1750
98d2faae
SH		 1751static const struct net_device_ops hwsim_netdev_ops = {
1752 .ndo_start_xmit = hwsim_mon_xmit,
1753 .ndo_change_mtu = eth_change_mtu,
1754 .ndo_set_mac_address = eth_mac_addr,
1755 .ndo_validate_addr = eth_validate_addr,
1756};
acc1e7a3
JM		 1757
1758static void hwsim_mon_setup(struct net_device *dev)
1759{
98d2faae 1760 dev->netdev_ops = &hwsim_netdev_ops;
acc1e7a3
JM		 1761 dev->destructor = free_netdev;
1762 ether_setup(dev);
1763 dev->tx_queue_len = 0;
1764 dev->type = ARPHRD_IEEE80211_RADIOTAP;
1765 memset(dev->dev_addr, 0, ETH_ALEN);
1766 dev->dev_addr[0] = 0x12;
1767}
1768
1769
fc6971d4
JM		 1770static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
1771{
1772 struct mac80211_hwsim_data *data = dat;
1773 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
fc6971d4
JM		 1774 struct sk_buff *skb;
1775 struct ieee80211_pspoll *pspoll;
1776
1777 if (!vp->assoc)
1778 return;
1779
c96c31e4
JP		 1780 wiphy_debug(data->hw->wiphy,
1781 "%s: send PS-Poll to %pM for aid %d\n",
1782 __func__, vp->bssid, vp->aid);
fc6971d4
JM		 1783
1784 skb = dev_alloc_skb(sizeof(*pspoll));
1785 if (!skb)
1786 return;
1787 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
1788 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
1789 IEEE80211_STYPE_PSPOLL |
1790 IEEE80211_FCTL_PM);
1791 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
1792 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
1793 memcpy(pspoll->ta, mac, ETH_ALEN);
7882513b 1794
e8261171
JB		 1795 rcu_read_lock();
1796 mac80211_hwsim_tx_frame(data->hw, skb,
4bf88530 1797 rcu_dereference(vif->chanctx_conf)->def.chan);
e8261171 1798 rcu_read_unlock();
fc6971d4
JM		 1799}
1800
fc6971d4
JM		 1801static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
1802 struct ieee80211_vif *vif, int ps)
1803{
1804 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
fc6971d4
JM		 1805 struct sk_buff *skb;
1806 struct ieee80211_hdr *hdr;
1807
1808 if (!vp->assoc)
1809 return;
1810
c96c31e4
JP		 1811 wiphy_debug(data->hw->wiphy,
1812 "%s: send data::nullfunc to %pM ps=%d\n",
1813 __func__, vp->bssid, ps);
fc6971d4
JM		 1814
1815 skb = dev_alloc_skb(sizeof(*hdr));
1816 if (!skb)
1817 return;
1818 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
1819 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1820 IEEE80211_STYPE_NULLFUNC |
1821 (ps ? IEEE80211_FCTL_PM : 0));
1822 hdr->duration_id = cpu_to_le16(0);
1823 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
1824 memcpy(hdr->addr2, mac, ETH_ALEN);
1825 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
7882513b 1826
e8261171
JB		 1827 rcu_read_lock();
1828 mac80211_hwsim_tx_frame(data->hw, skb,
4bf88530 1829 rcu_dereference(vif->chanctx_conf)->def.chan);
e8261171 1830 rcu_read_unlock();
fc6971d4
JM		 1831}
1832
1833
1834static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
1835 struct ieee80211_vif *vif)
1836{
1837 struct mac80211_hwsim_data *data = dat;
1838 hwsim_send_nullfunc(data, mac, vif, 1);
1839}
1840
1841
1842static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
1843 struct ieee80211_vif *vif)
1844{
1845 struct mac80211_hwsim_data *data = dat;
1846 hwsim_send_nullfunc(data, mac, vif, 0);
1847}
1848
1849
1850static int hwsim_fops_ps_read(void *dat, u64 *val)
1851{
1852 struct mac80211_hwsim_data *data = dat;
1853 *val = data->ps;
1854 return 0;
1855}
1856
1857static int hwsim_fops_ps_write(void *dat, u64 val)
1858{
1859 struct mac80211_hwsim_data *data = dat;
1860 enum ps_mode old_ps;
1861
1862 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
1863 val != PS_MANUAL_POLL)
1864 return -EINVAL;
1865
1866 old_ps = data->ps;
1867 data->ps = val;
1868
1869 if (val == PS_MANUAL_POLL) {
1870 ieee80211_iterate_active_interfaces(data->hw,
8b2c9824 1871 IEEE80211_IFACE_ITER_NORMAL,
fc6971d4
JM		 1872 hwsim_send_ps_poll, data);
1873 data->ps_poll_pending = true;
1874 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
1875 ieee80211_iterate_active_interfaces(data->hw,
8b2c9824 1876 IEEE80211_IFACE_ITER_NORMAL,
fc6971d4
JM		 1877 hwsim_send_nullfunc_ps,
1878 data);
1879 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
1880 ieee80211_iterate_active_interfaces(data->hw,
8b2c9824 1881 IEEE80211_IFACE_ITER_NORMAL,
fc6971d4
JM		 1882 hwsim_send_nullfunc_no_ps,
1883 data);
1884 }
1885
1886 return 0;
1887}
1888
1889DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
1890 "%llu\n");
1891
1892
73606d00
DW		 1893static int hwsim_fops_group_read(void *dat, u64 *val)
1894{
1895 struct mac80211_hwsim_data *data = dat;
1896 *val = data->group;
1897 return 0;
1898}
1899
1900static int hwsim_fops_group_write(void *dat, u64 val)
1901{
1902 struct mac80211_hwsim_data *data = dat;
1903 data->group = val;
1904 return 0;
1905}
1906
1907DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
1908 hwsim_fops_group_read, hwsim_fops_group_write,
1909 "%llx\n");
1910
f483ad25 1911static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(
7882513b
JL		 1912 struct mac_address *addr)
1913{
1914 struct mac80211_hwsim_data *data;
1915 bool _found = false;
1916
1917 spin_lock_bh(&hwsim_radio_lock);
1918 list_for_each_entry(data, &hwsim_radios, list) {
1919 if (memcmp(data->addresses[1].addr, addr,
1920 sizeof(struct mac_address)) == 0) {
1921 _found = true;
1922 break;
1923 }
1924 }
1925 spin_unlock_bh(&hwsim_radio_lock);
1926
1927 if (!_found)
1928 return NULL;
1929
1930 return data;
1931}
1932
1933static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
1934 struct genl_info *info)
1935{
1936
1937 struct ieee80211_hdr *hdr;
1938 struct mac80211_hwsim_data *data2;
1939 struct ieee80211_tx_info *txi;
1940 struct hwsim_tx_rate *tx_attempts;
d0f718c1 1941 unsigned long ret_skb_ptr;
7882513b
JL		 1942 struct sk_buff *skb, *tmp;
1943 struct mac_address *src;
1944 unsigned int hwsim_flags;
1945
1946 int i;
1947 bool found = false;
1948
1949 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
1950 !info->attrs[HWSIM_ATTR_FLAGS] ||
1951 !info->attrs[HWSIM_ATTR_COOKIE] ||
1952 !info->attrs[HWSIM_ATTR_TX_INFO])
1953 goto out;
1954
1955 src = (struct mac_address *)nla_data(
1956 info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
1957 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
1958
d0f718c1 1959 ret_skb_ptr = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
7882513b
JL		 1960
1961 data2 = get_hwsim_data_ref_from_addr(src);
1962
1963 if (data2 == NULL)
1964 goto out;
1965
1966 /* look for the skb matching the cookie passed back from user */
1967 skb_queue_walk_safe(&data2->pending, skb, tmp) {
d0f718c1 1968 if ((unsigned long)skb == ret_skb_ptr) {
7882513b
JL		 1969 skb_unlink(skb, &data2->pending);
1970 found = true;
1971 break;
1972 }
1973 }
1974
1975 /* not found */
1976 if (!found)
1977 goto out;
1978
1979 /* Tx info received because the frame was broadcasted on user space,
1980 so we get all the necessary info: tx attempts and skb control buff */
1981
1982 tx_attempts = (struct hwsim_tx_rate *)nla_data(
1983 info->attrs[HWSIM_ATTR_TX_INFO]);
1984
1985 /* now send back TX status */
1986 txi = IEEE80211_SKB_CB(skb);
1987
7882513b
JL		 1988 ieee80211_tx_info_clear_status(txi);
1989
1990 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
1991 txi->status.rates[i].idx = tx_attempts[i].idx;
1992 txi->status.rates[i].count = tx_attempts[i].count;
1993 /*txi->status.rates[i].flags = 0;*/
1994 }
1995
1996 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
1997
1998 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
1999 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
2000 if (skb->len >= 16) {
2001 hdr = (struct ieee80211_hdr *) skb->data;
e8261171
JB		 2002 mac80211_hwsim_monitor_ack(txi->rate_driver_data[0],
2003 hdr->addr2);
7882513b 2004 }
06cf5c4c 2005 txi->flags |= IEEE80211_TX_STAT_ACK;
7882513b
JL		 2006 }
2007 ieee80211_tx_status_irqsafe(data2->hw, skb);
2008 return 0;
2009out:
2010 return -EINVAL;
2011
2012}
2013
2014static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
2015 struct genl_info *info)
2016{
2017
e8261171 2018 struct mac80211_hwsim_data *data2;
7882513b
JL		 2019 struct ieee80211_rx_status rx_status;
2020 struct mac_address *dst;
2021 int frame_data_len;
2022 char *frame_data;
2023 struct sk_buff *skb = NULL;
2024
2025 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
e8261171
JB		 2026 !info->attrs[HWSIM_ATTR_FRAME] ||
2027 !info->attrs[HWSIM_ATTR_RX_RATE] ||
2028 !info->attrs[HWSIM_ATTR_SIGNAL])
7882513b
JL		 2029 goto out;
2030
2031 dst = (struct mac_address *)nla_data(
2032 info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
2033
2034 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
2035 frame_data = (char *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
2036
2037 /* Allocate new skb here */
2038 skb = alloc_skb(frame_data_len, GFP_KERNEL);
2039 if (skb == NULL)
2040 goto err;
2041
2042 if (frame_data_len <= IEEE80211_MAX_DATA_LEN) {
2043 /* Copy the data */
2044 memcpy(skb_put(skb, frame_data_len), frame_data,
2045 frame_data_len);
2046 } else
2047 goto err;
2048
2049 data2 = get_hwsim_data_ref_from_addr(dst);
2050
2051 if (data2 == NULL)
2052 goto out;
2053
2054 /* check if radio is configured properly */
2055
e8261171 2056 if (data2->idle || !data2->started)
7882513b
JL		 2057 goto out;
2058
2059 /*A frame is received from user space*/
2060 memset(&rx_status, 0, sizeof(rx_status));
2061 rx_status.freq = data2->channel->center_freq;
2062 rx_status.band = data2->channel->band;
2063 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
2064 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
2065
2066 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
2067 ieee80211_rx_irqsafe(data2->hw, skb);
2068
2069 return 0;
2070err:
c393862f 2071 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 2072 goto out;
2073out:
2074 dev_kfree_skb(skb);
2075 return -EINVAL;
2076}
2077
2078static int hwsim_register_received_nl(struct sk_buff *skb_2,
2079 struct genl_info *info)
2080{
2081 if (info == NULL)
2082 goto out;
2083
15e47304 2084 wmediumd_portid = info->snd_portid;
7882513b
JL		 2085
2086 printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
15e47304 2087 "switching to wmediumd mode with pid %d\n", info->snd_portid);
7882513b
JL		 2088
2089 return 0;
2090out:
c393862f 2091 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 2092 return -EINVAL;
2093}
2094
2095/* Generic Netlink operations array */
2096static struct genl_ops hwsim_ops[] = {
2097 {
2098 .cmd = HWSIM_CMD_REGISTER,
2099 .policy = hwsim_genl_policy,
2100 .doit = hwsim_register_received_nl,
2101 .flags = GENL_ADMIN_PERM,
2102 },
2103 {
2104 .cmd = HWSIM_CMD_FRAME,
2105 .policy = hwsim_genl_policy,
2106 .doit = hwsim_cloned_frame_received_nl,
2107 },
2108 {
2109 .cmd = HWSIM_CMD_TX_INFO_FRAME,
2110 .policy = hwsim_genl_policy,
2111 .doit = hwsim_tx_info_frame_received_nl,
2112 },
2113};
2114
2115static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
2116 unsigned long state,
2117 void *_notify)
2118{
2119 struct netlink_notify *notify = _notify;
2120
2121 if (state != NETLINK_URELEASE)
2122 return NOTIFY_DONE;
2123
15e47304 2124 if (notify->portid == wmediumd_portid) {
7882513b
JL		 2125 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
2126 " socket, switching to perfect channel medium\n");
15e47304 2127 wmediumd_portid = 0;
7882513b
JL		 2128 }
2129 return NOTIFY_DONE;
2130
2131}
2132
2133static struct notifier_block hwsim_netlink_notifier = {
2134 .notifier_call = mac80211_hwsim_netlink_notify,
2135};
2136
2137static int hwsim_init_netlink(void)
2138{
2139 int rc;
e8261171
JB		 2140
2141 /* userspace test API hasn't been adjusted for multi-channel */
2142 if (channels > 1)
2143 return 0;
2144
7882513b
JL		 2145 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
2146
7882513b
JL		 2147 rc = genl_register_family_with_ops(&hwsim_genl_family,
2148 hwsim_ops, ARRAY_SIZE(hwsim_ops));
2149 if (rc)
2150 goto failure;
2151
2152 rc = netlink_register_notifier(&hwsim_netlink_notifier);
2153 if (rc)
2154 goto failure;
2155
2156 return 0;
2157
2158failure:
c393862f 2159 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 2160 return -EINVAL;
2161}
2162
2163static void hwsim_exit_netlink(void)
2164{
2165 int ret;
2166
e8261171
JB		 2167 /* userspace test API hasn't been adjusted for multi-channel */
2168 if (channels > 1)
2169 return;
2170
7882513b
JL		 2171 printk(KERN_INFO "mac80211_hwsim: closing netlink\n");
2172 /* unregister the notifier */
2173 netlink_unregister_notifier(&hwsim_netlink_notifier);
2174 /* unregister the family */
2175 ret = genl_unregister_family(&hwsim_genl_family);
2176 if (ret)
2177 printk(KERN_DEBUG "mac80211_hwsim: "
2178 "unregister family %i\n", ret);
2179}
2180
1ae2fc25
JB		 2181static const struct ieee80211_iface_limit hwsim_if_limits[] = {
2182 { .max = 1, .types = BIT(NL80211_IFTYPE_ADHOC) },
2183 { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) |
2184 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2185#ifdef CONFIG_MAC80211_MESH
2186 BIT(NL80211_IFTYPE_MESH_POINT) |
2187#endif
2188 BIT(NL80211_IFTYPE_AP) |
2189 BIT(NL80211_IFTYPE_P2P_GO) },
8b3d1cc2 2190 { .max = 1, .types = BIT(NL80211_IFTYPE_P2P_DEVICE) },
1ae2fc25
JB		 2191};
2192
e8261171 2193static struct ieee80211_iface_combination hwsim_if_comb = {
1ae2fc25
JB		 2194 .limits = hwsim_if_limits,
2195 .n_limits = ARRAY_SIZE(hwsim_if_limits),
2196 .max_interfaces = 2048,
2197 .num_different_channels = 1,
2198};
2199
acc1e7a3
JM		 2200static int __init init_mac80211_hwsim(void)
2201{
2202 int i, err = 0;
2203 u8 addr[ETH_ALEN];
2204 struct mac80211_hwsim_data *data;
2205 struct ieee80211_hw *hw;
22cad735 2206 enum ieee80211_band band;
acc1e7a3 2207
0e057d73 2208 if (radios < 1 || radios > 100)
acc1e7a3
JM		 2209 return -EINVAL;
2210
e8261171
JB		 2211 if (channels < 1)
2212 return -EINVAL;
2213
2214 if (channels > 1) {
2215 hwsim_if_comb.num_different_channels = channels;
69068036 2216 mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan;
e8261171
JB		 2217 mac80211_hwsim_ops.cancel_hw_scan =
2218 mac80211_hwsim_cancel_hw_scan;
f74cb0f7
LR		 2219 mac80211_hwsim_ops.sw_scan_start = NULL;
2220 mac80211_hwsim_ops.sw_scan_complete = NULL;
e8261171
JB		 2221 mac80211_hwsim_ops.remain_on_channel =
2222 mac80211_hwsim_roc;
2223 mac80211_hwsim_ops.cancel_remain_on_channel =
2224 mac80211_hwsim_croc;
2225 mac80211_hwsim_ops.add_chanctx =
2226 mac80211_hwsim_add_chanctx;
2227 mac80211_hwsim_ops.remove_chanctx =
2228 mac80211_hwsim_remove_chanctx;
2229 mac80211_hwsim_ops.change_chanctx =
2230 mac80211_hwsim_change_chanctx;
2231 mac80211_hwsim_ops.assign_vif_chanctx =
2232 mac80211_hwsim_assign_vif_chanctx;
2233 mac80211_hwsim_ops.unassign_vif_chanctx =
2234 mac80211_hwsim_unassign_vif_chanctx;
f74cb0f7 2235 }
69068036 2236
0e057d73
JB		 2237 spin_lock_init(&hwsim_radio_lock);
2238 INIT_LIST_HEAD(&hwsim_radios);
acc1e7a3 2239
c07fe5ae 2240 err = platform_driver_register(&mac80211_hwsim_driver);
9ea92774
MP		 2241 if (err)
2242 return err;
2243
acc1e7a3 2244 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
9ea92774
MP		 2245 if (IS_ERR(hwsim_class)) {
2246 err = PTR_ERR(hwsim_class);
2247 goto failed_unregister_driver;
2248 }
acc1e7a3
JM		 2249
2250 memset(addr, 0, ETH_ALEN);
2251 addr[0] = 0x02;
2252
0e057d73 2253 for (i = 0; i < radios; i++) {
acc1e7a3
JM		 2254 printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
2255 i);
2256 hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);
0e057d73 2257 if (!hw) {
acc1e7a3
JM		 2258 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
2259 "failed\n");
2260 err = -ENOMEM;
2261 goto failed;
2262 }
acc1e7a3 2263 data = hw->priv;
0e057d73
JB		 2264 data->hw = hw;
2265
6e05d6c4
GKH		 2266 data->dev = device_create(hwsim_class, NULL, 0, hw,
2267 "hwsim%d", i);
acc1e7a3 2268 if (IS_ERR(data->dev)) {
e800f17c 2269 printk(KERN_DEBUG
9ea92774
MP		 2270 "mac80211_hwsim: device_create failed (%ld)\n",
2271 PTR_ERR(data->dev));
acc1e7a3 2272 err = -ENOMEM;
3a33cc10 2273 goto failed_drvdata;
acc1e7a3 2274 }
c07fe5ae 2275 data->dev->driver = &mac80211_hwsim_driver.driver;
9ea92774
MP		 2276 err = device_bind_driver(data->dev);
2277 if (err != 0) {
2278 printk(KERN_DEBUG
2279 "mac80211_hwsim: device_bind_driver failed (%d)\n",
2280 err);
2281 goto failed_hw;
2282 }
2283
7882513b 2284 skb_queue_head_init(&data->pending);
acc1e7a3
JM		 2285
2286 SET_IEEE80211_DEV(hw, data->dev);
2287 addr[3] = i >> 8;
2288 addr[4] = i;
ef15aac6
JB		 2289 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
2290 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
2291 data->addresses[1].addr[0] |= 0x40;
2292 hw->wiphy->n_addresses = 2;
2293 hw->wiphy->addresses = data->addresses;
acc1e7a3 2294
1ae2fc25
JB		 2295 hw->wiphy->iface_combinations = &hwsim_if_comb;
2296 hw->wiphy->n_iface_combinations = 1;
2297
e8261171 2298 if (channels > 1) {
8223d2f5
JB		 2299 hw->wiphy->max_scan_ssids = 255;
2300 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
e8261171 2301 hw->wiphy->max_remain_on_channel_duration = 1000;
8223d2f5
JB		 2302 }
2303
e8261171
JB		 2304 INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
2305 INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
2306
acc1e7a3 2307 hw->channel_change_time = 1;
e8261171
JB		 2308 hw->queues = 5;
2309 hw->offchannel_tx_hw_queue = 4;
f59ac048
LR		 2310 hw->wiphy->interface_modes =
2311 BIT(NL80211_IFTYPE_STATION) |
55b39619 2312 BIT(NL80211_IFTYPE_AP) |
2ca27bcf
JB		 2313 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2314 BIT(NL80211_IFTYPE_P2P_GO) |
2b2d7795 2315 BIT(NL80211_IFTYPE_ADHOC) |
8b3d1cc2
JB		 2316 BIT(NL80211_IFTYPE_MESH_POINT) |
2317 BIT(NL80211_IFTYPE_P2P_DEVICE);
acc1e7a3 2318
4b14c96d 2319 hw->flags = IEEE80211_HW_MFP_CAPABLE |
0f78231b
JB		 2320 IEEE80211_HW_SIGNAL_DBM |
2321 IEEE80211_HW_SUPPORTS_STATIC_SMPS |
a75b4363 2322 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
4b6f1dd6 2323 IEEE80211_HW_AMPDU_AGGREGATION |
e8261171
JB		 2324 IEEE80211_HW_WANT_MONITOR_VIF |
2325 IEEE80211_HW_QUEUE_CONTROL;
1eb32179
KB		 2326 if (rctbl)
2327 hw->flags |= IEEE80211_HW_SUPPORTS_RC_TABLE;
fa77533e 2328
81ddbb5c 2329 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2f5286e8
JB		 2330 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
2331 WIPHY_FLAG_AP_UAPSD;
5fd91aac 2332 hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR;
43bc3e89 2333
8aa21e6f
JB		 2334 /* ask mac80211 to reserve space for magic */
2335 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
81c06523 2336 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
93c78c5d 2337 hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
8aa21e6f 2338
22cad735
LR		 2339 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
2340 sizeof(hwsim_channels_2ghz));
2341 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
2342 sizeof(hwsim_channels_5ghz));
acc1e7a3 2343 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
22cad735
LR		 2344
2345 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
2346 struct ieee80211_supported_band *sband = &data->bands[band];
2347 switch (band) {
2348 case IEEE80211_BAND_2GHZ:
2349 sband->channels = data->channels_2ghz;
2350 sband->n_channels =
2351 ARRAY_SIZE(hwsim_channels_2ghz);
d130eb49
JB		 2352 sband->bitrates = data->rates;
2353 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
22cad735
LR		 2354 break;
2355 case IEEE80211_BAND_5GHZ:
2356 sband->channels = data->channels_5ghz;
2357 sband->n_channels =
2358 ARRAY_SIZE(hwsim_channels_5ghz);
d130eb49
JB		 2359 sband->bitrates = data->rates + 4;
2360 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
22cad735
LR		 2361 break;
2362 default:
1b083ea4 2363 continue;
22cad735
LR		 2364 }
2365
22cad735
LR		 2366 sband->ht_cap.ht_supported = true;
2367 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
2368 IEEE80211_HT_CAP_GRN_FLD |
2369 IEEE80211_HT_CAP_SGI_40 |
2370 IEEE80211_HT_CAP_DSSSCCK40;
2371 sband->ht_cap.ampdu_factor = 0x3;
2372 sband->ht_cap.ampdu_density = 0x6;
2373 memset(&sband->ht_cap.mcs, 0,
2374 sizeof(sband->ht_cap.mcs));
2375 sband->ht_cap.mcs.rx_mask[0] = 0xff;
2376 sband->ht_cap.mcs.rx_mask[1] = 0xff;
2377 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2378
2379 hw->wiphy->bands[band] = sband;
b296005c 2380
b296005c
JB		 2381 sband->vht_cap.vht_supported = true;
2382 sband->vht_cap.cap =
2383 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
2384 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
2385 IEEE80211_VHT_CAP_RXLDPC |
2386 IEEE80211_VHT_CAP_SHORT_GI_80 |
2387 IEEE80211_VHT_CAP_SHORT_GI_160 |
2388 IEEE80211_VHT_CAP_TXSTBC |
2389 IEEE80211_VHT_CAP_RXSTBC_1 |
2390 IEEE80211_VHT_CAP_RXSTBC_2 |
2391 IEEE80211_VHT_CAP_RXSTBC_3 |
2392 IEEE80211_VHT_CAP_RXSTBC_4 |
01331040 2393 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
b296005c
JB		 2394 sband->vht_cap.vht_mcs.rx_mcs_map =
2395 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_8 << 0 |
2396 IEEE80211_VHT_MCS_SUPPORT_0_8 << 2 |
2397 IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
2398 IEEE80211_VHT_MCS_SUPPORT_0_8 << 6 |
2399 IEEE80211_VHT_MCS_SUPPORT_0_8 << 8 |
2400 IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
2401 IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
2402 IEEE80211_VHT_MCS_SUPPORT_0_8 << 14);
2403 sband->vht_cap.vht_mcs.tx_mcs_map =
2404 sband->vht_cap.vht_mcs.rx_mcs_map;
22cad735 2405 }
73606d00
DW		 2406 /* By default all radios are belonging to the first group */
2407 data->group = 1;
f74cb0f7 2408 mutex_init(&data->mutex);
acc1e7a3 2409
7882513b
JL		 2410 /* Enable frame retransmissions for lossy channels */
2411 hw->max_rates = 4;
2412 hw->max_rate_tries = 11;
2413
4a5af9c2
LR		 2414 /* Work to be done prior to ieee80211_register_hw() */
2415 switch (regtest) {
2416 case HWSIM_REGTEST_DISABLED:
2417 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
2418 case HWSIM_REGTEST_DRIVER_REG_ALL:
2419 case HWSIM_REGTEST_DIFF_COUNTRY:
2420 /*
2421 * Nothing to be done for driver regulatory domain
2422 * hints prior to ieee80211_register_hw()
2423 */
2424 break;
2425 case HWSIM_REGTEST_WORLD_ROAM:
2426 if (i == 0) {
5be83de5 2427 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 2428 wiphy_apply_custom_regulatory(hw->wiphy,
2429 &hwsim_world_regdom_custom_01);
2430 }
2431 break;
2432 case HWSIM_REGTEST_CUSTOM_WORLD:
5be83de5 2433 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 2434 wiphy_apply_custom_regulatory(hw->wiphy,
2435 &hwsim_world_regdom_custom_01);
2436 break;
2437 case HWSIM_REGTEST_CUSTOM_WORLD_2:
2438 if (i == 0) {
5be83de5 2439 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 2440 wiphy_apply_custom_regulatory(hw->wiphy,
2441 &hwsim_world_regdom_custom_01);
2442 } else if (i == 1) {
5be83de5 2443 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 2444 wiphy_apply_custom_regulatory(hw->wiphy,
2445 &hwsim_world_regdom_custom_02);
2446 }
2447 break;
2448 case HWSIM_REGTEST_STRICT_ALL:
5be83de5 2449 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
4a5af9c2
LR		 2450 break;
2451 case HWSIM_REGTEST_STRICT_FOLLOW:
2452 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
2453 if (i == 0)
5be83de5 2454 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
4a5af9c2
LR		 2455 break;
2456 case HWSIM_REGTEST_ALL:
2457 if (i == 0) {
5be83de5 2458 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 2459 wiphy_apply_custom_regulatory(hw->wiphy,
2460 &hwsim_world_regdom_custom_01);
2461 } else if (i == 1) {
5be83de5 2462 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 2463 wiphy_apply_custom_regulatory(hw->wiphy,
2464 &hwsim_world_regdom_custom_02);
2465 } else if (i == 4)
5be83de5 2466 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
4a5af9c2
LR		 2467 break;
2468 default:
2469 break;
2470 }
2471
98dfaa57
LR		 2472 /* give the regulatory workqueue a chance to run */
2473 if (regtest)
2474 schedule_timeout_interruptible(1);
acc1e7a3
JM		 2475 err = ieee80211_register_hw(hw);
2476 if (err < 0) {
2477 printk(KERN_DEBUG "mac80211_hwsim: "
2478 "ieee80211_register_hw failed (%d)\n", err);
3a33cc10 2479 goto failed_hw;
acc1e7a3
JM		 2480 }
2481
4a5af9c2
LR		 2482 /* Work to be done after to ieee80211_register_hw() */
2483 switch (regtest) {
2484 case HWSIM_REGTEST_WORLD_ROAM:
2485 case HWSIM_REGTEST_DISABLED:
2486 break;
2487 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
2488 if (!i)
2489 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2490 break;
2491 case HWSIM_REGTEST_DRIVER_REG_ALL:
2492 case HWSIM_REGTEST_STRICT_ALL:
2493 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2494 break;
2495 case HWSIM_REGTEST_DIFF_COUNTRY:
2496 if (i < ARRAY_SIZE(hwsim_alpha2s))
2497 regulatory_hint(hw->wiphy, hwsim_alpha2s[i]);
2498 break;
2499 case HWSIM_REGTEST_CUSTOM_WORLD:
2500 case HWSIM_REGTEST_CUSTOM_WORLD_2:
2501 /*
2502 * Nothing to be done for custom world regulatory
2503 * domains after to ieee80211_register_hw
2504 */
2505 break;
2506 case HWSIM_REGTEST_STRICT_FOLLOW:
2507 if (i == 0)
2508 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2509 break;
2510 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
2511 if (i == 0)
2512 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2513 else if (i == 1)
2514 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
2515 break;
2516 case HWSIM_REGTEST_ALL:
2517 if (i == 2)
2518 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2519 else if (i == 3)
2520 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
2521 else if (i == 4)
2522 regulatory_hint(hw->wiphy, hwsim_alpha2s[2]);
2523 break;
2524 default:
2525 break;
2526 }
2527
c96c31e4
JP		 2528 wiphy_debug(hw->wiphy, "hwaddr %pm registered\n",
2529 hw->wiphy->perm_addr);
acc1e7a3 2530
fc6971d4
JM		 2531 data->debugfs = debugfs_create_dir("hwsim",
2532 hw->wiphy->debugfsdir);
70526e54
JD		 2533 debugfs_create_file("ps", 0666, data->debugfs, data,
2534 &hwsim_fops_ps);
2535 debugfs_create_file("group", 0666, data->debugfs, data,
2536 &hwsim_fops_group);
fc6971d4 2537
01e59e46
TP		 2538 tasklet_hrtimer_init(&data->beacon_timer,
2539 mac80211_hwsim_beacon,
2540 CLOCK_REALTIME, HRTIMER_MODE_ABS);
0e057d73
JB		 2541
2542 list_add_tail(&data->list, &hwsim_radios);
acc1e7a3
JM		 2543 }
2544
2545 hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
bcdd8220
WY		 2546 if (hwsim_mon == NULL) {
2547 err = -ENOMEM;
acc1e7a3 2548 goto failed;
bcdd8220 2549 }
acc1e7a3 2550
7882513b
JL		 2551 rtnl_lock();
2552
2553 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
3a33cc10 2554 if (err < 0)
acc1e7a3 2555 goto failed_mon;
3a33cc10 2556
7882513b
JL		 2557
2558 err = register_netdevice(hwsim_mon);
2559 if (err < 0)
2560 goto failed_mon;
2561
2562 rtnl_unlock();
2563
2564 err = hwsim_init_netlink();
2565 if (err < 0)
2566 goto failed_nl;
2567
acc1e7a3
JM		 2568 return 0;
2569
7882513b
JL		 2570failed_nl:
2571 printk(KERN_DEBUG "mac_80211_hwsim: failed initializing netlink\n");
2572 return err;
2573
acc1e7a3
JM		 2574failed_mon:
2575 rtnl_unlock();
2576 free_netdev(hwsim_mon);
3a33cc10
IS		 2577 mac80211_hwsim_free();
2578 return err;
acc1e7a3 2579
3a33cc10
IS		 2580failed_hw:
2581 device_unregister(data->dev);
2582failed_drvdata:
2583 ieee80211_free_hw(hw);
acc1e7a3
JM		 2584failed:
2585 mac80211_hwsim_free();
9ea92774 2586failed_unregister_driver:
c07fe5ae 2587 platform_driver_unregister(&mac80211_hwsim_driver);
acc1e7a3
JM		 2588 return err;
2589}
f8fffc7e 2590module_init(init_mac80211_hwsim);
acc1e7a3
JM		 2591
2592static void __exit exit_mac80211_hwsim(void)
2593{
0e057d73 2594 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
acc1e7a3 2595
7882513b
JL		 2596 hwsim_exit_netlink();
2597
acc1e7a3 2598 mac80211_hwsim_free();
5d416351 2599 unregister_netdev(hwsim_mon);
c07fe5ae 2600 platform_driver_unregister(&mac80211_hwsim_driver);
acc1e7a3 2601}
acc1e7a3 2602module_exit(exit_mac80211_hwsim);
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