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cfg80211/mac80211: allow any interface to send channel switch notifications
[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
8c66a3d9
JB		 60static bool support_p2p_device = true;
61module_param(support_p2p_device, bool, 0444);
62MODULE_PARM_DESC(support_p2p_device, "Support P2P-Device interface type");
63
4a5af9c2
LR		 64/**
65 * enum hwsim_regtest - the type of regulatory tests we offer
66 *
67 * These are the different values you can use for the regtest
68 * module parameter. This is useful to help test world roaming
69 * and the driver regulatory_hint() call and combinations of these.
70 * If you want to do specific alpha2 regulatory domain tests simply
71 * use the userspace regulatory request as that will be respected as
72 * well without the need of this module parameter. This is designed
73 * only for testing the driver regulatory request, world roaming
74 * and all possible combinations.
75 *
76 * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
77 * this is the default value.
78 * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
79 * hint, only one driver regulatory hint will be sent as such the
80 * secondary radios are expected to follow.
81 * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
82 * request with all radios reporting the same regulatory domain.
83 * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
84 * different regulatory domains requests. Expected behaviour is for
85 * an intersection to occur but each device will still use their
86 * respective regulatory requested domains. Subsequent radios will
87 * use the resulting intersection.
25985edc 88 * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We accomplish
4a5af9c2
LR		 89 * this by using a custom beacon-capable regulatory domain for the first
90 * radio. All other device world roam.
91 * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
92 * domain requests. All radios will adhere to this custom world regulatory
93 * domain.
94 * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
95 * domain requests. The first radio will adhere to the first custom world
96 * regulatory domain, the second one to the second custom world regulatory
97 * domain. All other devices will world roam.
98 * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain
99 * settings, only the first radio will send a regulatory domain request
100 * and use strict settings. The rest of the radios are expected to follow.
101 * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
102 * settings. All radios will adhere to this.
103 * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
104 * domain settings, combined with secondary driver regulatory domain
105 * settings. The first radio will get a strict regulatory domain setting
106 * using the first driver regulatory request and the second radio will use
107 * non-strict settings using the second driver regulatory request. All
108 * other devices should follow the intersection created between the
109 * first two.
110 * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
111 * at least 6 radios for a complete test. We will test in this order:
112 * 1 - driver custom world regulatory domain
113 * 2 - second custom world regulatory domain
114 * 3 - first driver regulatory domain request
115 * 4 - second driver regulatory domain request
116 * 5 - strict regulatory domain settings using the third driver regulatory
117 * domain request
118 * 6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
119 * regulatory requests.
120 */
121enum hwsim_regtest {
122 HWSIM_REGTEST_DISABLED = 0,
123 HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1,
124 HWSIM_REGTEST_DRIVER_REG_ALL = 2,
125 HWSIM_REGTEST_DIFF_COUNTRY = 3,
126 HWSIM_REGTEST_WORLD_ROAM = 4,
127 HWSIM_REGTEST_CUSTOM_WORLD = 5,
128 HWSIM_REGTEST_CUSTOM_WORLD_2 = 6,
129 HWSIM_REGTEST_STRICT_FOLLOW = 7,
130 HWSIM_REGTEST_STRICT_ALL = 8,
131 HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9,
132 HWSIM_REGTEST_ALL = 10,
133};
134
135/* Set to one of the HWSIM_REGTEST_* values above */
136static int regtest = HWSIM_REGTEST_DISABLED;
137module_param(regtest, int, 0444);
138MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run");
139
140static const char *hwsim_alpha2s[] = {
141 "FI",
142 "AL",
143 "US",
144 "DE",
145 "JP",
146 "AL",
147};
148
149static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = {
150 .n_reg_rules = 4,
151 .alpha2 = "99",
152 .reg_rules = {
153 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
154 REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
155 REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
156 REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
157 }
158};
159
160static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = {
161 .n_reg_rules = 2,
162 .alpha2 = "99",
163 .reg_rules = {
164 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
165 REG_RULE(5725-10, 5850+10, 40, 0, 30,
8fe02e16 166 NL80211_RRF_NO_IR),
4a5af9c2
LR		 167 }
168};
169
26b0e411
JB		 170static const struct ieee80211_regdomain *hwsim_world_regdom_custom[] = {
171 &hwsim_world_regdom_custom_01,
172 &hwsim_world_regdom_custom_02,
173};
174
8aa21e6f
JB		 175struct hwsim_vif_priv {
176 u32 magic;
fc6971d4
JM		 177 u8 bssid[ETH_ALEN];
178 bool assoc;
0bb861e6 179 bool bcn_en;
fc6971d4 180 u16 aid;
8aa21e6f
JB		 181};
182
183#define HWSIM_VIF_MAGIC 0x69537748
184
185static inline void hwsim_check_magic(struct ieee80211_vif *vif)
186{
187 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
e8261171
JB		 188 WARN(vp->magic != HWSIM_VIF_MAGIC,
189 "Invalid VIF (%p) magic %#x, %pM, %d/%d\n",
190 vif, vp->magic, vif->addr, vif->type, vif->p2p);
8aa21e6f
JB		 191}
192
193static inline void hwsim_set_magic(struct ieee80211_vif *vif)
194{
195 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
196 vp->magic = HWSIM_VIF_MAGIC;
197}
198
199static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
200{
201 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
202 vp->magic = 0;
203}
acc1e7a3 204
81c06523
JB		 205struct hwsim_sta_priv {
206 u32 magic;
207};
208
e8261171 209#define HWSIM_STA_MAGIC 0x6d537749
81c06523
JB		 210
211static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
212{
213 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
5d6924ea 214 WARN_ON(sp->magic != HWSIM_STA_MAGIC);
81c06523
JB		 215}
216
217static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
218{
219 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
5d6924ea 220 sp->magic = HWSIM_STA_MAGIC;
81c06523
JB		 221}
222
223static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
224{
225 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
226 sp->magic = 0;
227}
228
e8261171
JB		 229struct hwsim_chanctx_priv {
230 u32 magic;
231};
232
233#define HWSIM_CHANCTX_MAGIC 0x6d53774a
234
235static inline void hwsim_check_chanctx_magic(struct ieee80211_chanctx_conf *c)
236{
237 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
238 WARN_ON(cp->magic != HWSIM_CHANCTX_MAGIC);
239}
240
241static inline void hwsim_set_chanctx_magic(struct ieee80211_chanctx_conf *c)
242{
243 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
244 cp->magic = HWSIM_CHANCTX_MAGIC;
245}
246
247static inline void hwsim_clear_chanctx_magic(struct ieee80211_chanctx_conf *c)
248{
249 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
250 cp->magic = 0;
251}
252
acc1e7a3
JM		 253static struct class *hwsim_class;
254
acc1e7a3
JM		 255static struct net_device *hwsim_mon; /* global monitor netdev */
256
22cad735
LR		 257#define CHAN2G(_freq) { \
258 .band = IEEE80211_BAND_2GHZ, \
259 .center_freq = (_freq), \
260 .hw_value = (_freq), \
261 .max_power = 20, \
262}
263
264#define CHAN5G(_freq) { \
265 .band = IEEE80211_BAND_5GHZ, \
266 .center_freq = (_freq), \
267 .hw_value = (_freq), \
268 .max_power = 20, \
269}
270
271static const struct ieee80211_channel hwsim_channels_2ghz[] = {
272 CHAN2G(2412), /* Channel 1 */
273 CHAN2G(2417), /* Channel 2 */
274 CHAN2G(2422), /* Channel 3 */
275 CHAN2G(2427), /* Channel 4 */
276 CHAN2G(2432), /* Channel 5 */
277 CHAN2G(2437), /* Channel 6 */
278 CHAN2G(2442), /* Channel 7 */
279 CHAN2G(2447), /* Channel 8 */
280 CHAN2G(2452), /* Channel 9 */
281 CHAN2G(2457), /* Channel 10 */
282 CHAN2G(2462), /* Channel 11 */
283 CHAN2G(2467), /* Channel 12 */
284 CHAN2G(2472), /* Channel 13 */
285 CHAN2G(2484), /* Channel 14 */
286};
acc1e7a3 287
22cad735
LR		 288static const struct ieee80211_channel hwsim_channels_5ghz[] = {
289 CHAN5G(5180), /* Channel 36 */
290 CHAN5G(5200), /* Channel 40 */
291 CHAN5G(5220), /* Channel 44 */
292 CHAN5G(5240), /* Channel 48 */
293
294 CHAN5G(5260), /* Channel 52 */
295 CHAN5G(5280), /* Channel 56 */
296 CHAN5G(5300), /* Channel 60 */
297 CHAN5G(5320), /* Channel 64 */
298
299 CHAN5G(5500), /* Channel 100 */
300 CHAN5G(5520), /* Channel 104 */
301 CHAN5G(5540), /* Channel 108 */
302 CHAN5G(5560), /* Channel 112 */
303 CHAN5G(5580), /* Channel 116 */
304 CHAN5G(5600), /* Channel 120 */
305 CHAN5G(5620), /* Channel 124 */
306 CHAN5G(5640), /* Channel 128 */
307 CHAN5G(5660), /* Channel 132 */
308 CHAN5G(5680), /* Channel 136 */
309 CHAN5G(5700), /* Channel 140 */
310
311 CHAN5G(5745), /* Channel 149 */
312 CHAN5G(5765), /* Channel 153 */
313 CHAN5G(5785), /* Channel 157 */
314 CHAN5G(5805), /* Channel 161 */
315 CHAN5G(5825), /* Channel 165 */
acc1e7a3
JM		 316};
317
318static const struct ieee80211_rate hwsim_rates[] = {
319 { .bitrate = 10 },
320 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
321 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
322 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
323 { .bitrate = 60 },
324 { .bitrate = 90 },
325 { .bitrate = 120 },
326 { .bitrate = 180 },
327 { .bitrate = 240 },
328 { .bitrate = 360 },
329 { .bitrate = 480 },
330 { .bitrate = 540 }
331};
332
de0421d5
JB		 333static const struct ieee80211_iface_limit hwsim_if_limits[] = {
334 { .max = 1, .types = BIT(NL80211_IFTYPE_ADHOC) },
335 { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) |
336 BIT(NL80211_IFTYPE_P2P_CLIENT) |
337#ifdef CONFIG_MAC80211_MESH
338 BIT(NL80211_IFTYPE_MESH_POINT) |
339#endif
340 BIT(NL80211_IFTYPE_AP) |
341 BIT(NL80211_IFTYPE_P2P_GO) },
8c66a3d9
JB		 342 /* must be last, see hwsim_if_comb */
343 { .max = 1, .types = BIT(NL80211_IFTYPE_P2P_DEVICE) }
de0421d5
JB		 344};
345
346static const struct ieee80211_iface_limit hwsim_if_dfs_limits[] = {
347 { .max = 8, .types = BIT(NL80211_IFTYPE_AP) },
348};
349
350static const struct ieee80211_iface_combination hwsim_if_comb[] = {
8c66a3d9
JB		 351 {
352 .limits = hwsim_if_limits,
353 /* remove the last entry which is P2P_DEVICE */
354 .n_limits = ARRAY_SIZE(hwsim_if_limits) - 1,
355 .max_interfaces = 2048,
356 .num_different_channels = 1,
357 },
358 {
359 .limits = hwsim_if_dfs_limits,
360 .n_limits = ARRAY_SIZE(hwsim_if_dfs_limits),
361 .max_interfaces = 8,
362 .num_different_channels = 1,
363 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
364 BIT(NL80211_CHAN_WIDTH_20) |
365 BIT(NL80211_CHAN_WIDTH_40) |
366 BIT(NL80211_CHAN_WIDTH_80) |
367 BIT(NL80211_CHAN_WIDTH_160),
368 }
369};
370
371static const struct ieee80211_iface_combination hwsim_if_comb_p2p_dev[] = {
de0421d5
JB		 372 {
373 .limits = hwsim_if_limits,
374 .n_limits = ARRAY_SIZE(hwsim_if_limits),
375 .max_interfaces = 2048,
376 .num_different_channels = 1,
377 },
378 {
379 .limits = hwsim_if_dfs_limits,
380 .n_limits = ARRAY_SIZE(hwsim_if_dfs_limits),
381 .max_interfaces = 8,
382 .num_different_channels = 1,
383 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
384 BIT(NL80211_CHAN_WIDTH_20) |
385 BIT(NL80211_CHAN_WIDTH_40) |
386 BIT(NL80211_CHAN_WIDTH_80) |
387 BIT(NL80211_CHAN_WIDTH_160),
388 }
389};
390
0e057d73
JB		 391static spinlock_t hwsim_radio_lock;
392static struct list_head hwsim_radios;
2d68992b 393static int hwsim_radio_idx;
0e057d73 394
de0421d5
JB		 395static struct platform_driver mac80211_hwsim_driver = {
396 .driver = {
397 .name = "mac80211_hwsim",
398 .owner = THIS_MODULE,
399 },
400};
0e057d73 401
acc1e7a3 402struct mac80211_hwsim_data {
0e057d73
JB		 403 struct list_head list;
404 struct ieee80211_hw *hw;
acc1e7a3 405 struct device *dev;
1b083ea4 406 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
22cad735
LR		 407 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
408 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
acc1e7a3 409 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
38ed5048 410 struct ieee80211_iface_combination if_combination;
acc1e7a3 411
ef15aac6 412 struct mac_address addresses[2];
bc791098 413 int channels, idx;
361c3e04 414 bool use_chanctx;
e9ed49bf
JR		 415 bool destroy_on_close;
416 struct work_struct destroy_work;
417 u32 portid;
ef15aac6 418
e8261171
JB		 419 struct ieee80211_channel *tmp_chan;
420 struct delayed_work roc_done;
421 struct delayed_work hw_scan;
422 struct cfg80211_scan_request *hw_scan_request;
423 struct ieee80211_vif *hw_scan_vif;
424 int scan_chan_idx;
425
acc1e7a3 426 struct ieee80211_channel *channel;
01e59e46 427 u64 beacon_int /* beacon interval in us */;
acc1e7a3 428 unsigned int rx_filter;
f74cb0f7
LR		 429 bool started, idle, scanning;
430 struct mutex mutex;
01e59e46 431 struct tasklet_hrtimer beacon_timer;
fc6971d4
JM		 432 enum ps_mode {
433 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
434 } ps;
435 bool ps_poll_pending;
436 struct dentry *debugfs;
73606d00 437
7882513b 438 struct sk_buff_head pending; /* packets pending */
73606d00
DW		 439 /*
440 * Only radios in the same group can communicate together (the
441 * channel has to match too). Each bit represents a group. A
9ebac15f 442 * radio can be in more than one group.
73606d00
DW		 443 */
444 u64 group;
bdd7bd16
BG		 445
446 int power_level;
2f40b940
JC		 447
448 /* difference between this hw's clock and the real clock, in usecs */
45034bfb 449 s64 tsf_offset;
c51f8783 450 s64 bcn_delta;
b66851c3
TP		 451 /* absolute beacon transmission time. Used to cover up "tx" delay. */
452 u64 abs_bcn_ts;
2155c3f8
BG		 453
454 /* Stats */
455 u64 tx_pkts;
456 u64 rx_pkts;
457 u64 tx_bytes;
458 u64 rx_bytes;
459 u64 tx_dropped;
460 u64 tx_failed;
acc1e7a3
JM		 461};
462
463
464struct hwsim_radiotap_hdr {
465 struct ieee80211_radiotap_header hdr;
2f40b940 466 __le64 rt_tsft;
acc1e7a3
JM		 467 u8 rt_flags;
468 u8 rt_rate;
469 __le16 rt_channel;
470 __le16 rt_chbitmask;
ba2d3587 471} __packed;
acc1e7a3 472
76a56eb3
JM		 473struct hwsim_radiotap_ack_hdr {
474 struct ieee80211_radiotap_header hdr;
475 u8 rt_flags;
476 u8 pad;
477 __le16 rt_channel;
478 __le16 rt_chbitmask;
479} __packed;
480
7882513b
JL		 481/* MAC80211_HWSIM netlinf family */
482static struct genl_family hwsim_genl_family = {
483 .id = GENL_ID_GENERATE,
484 .hdrsize = 0,
485 .name = "MAC80211_HWSIM",
486 .version = 1,
487 .maxattr = HWSIM_ATTR_MAX,
488};
489
62759361
JR		 490enum hwsim_multicast_groups {
491 HWSIM_MCGRP_CONFIG,
492};
493
494static const struct genl_multicast_group hwsim_mcgrps[] = {
495 [HWSIM_MCGRP_CONFIG] = { .name = "config", },
496};
497
7882513b
JL		 498/* MAC80211_HWSIM netlink policy */
499
205d2429 500static const struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
9ddd12af
JB		 501 [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
502 [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
7882513b
JL		 503 [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
504 .len = IEEE80211_MAX_DATA_LEN },
505 [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
506 [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
507 [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
508 [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC,
9ddd12af
JB		 509 .len = IEEE80211_TX_MAX_RATES *
510 sizeof(struct hwsim_tx_rate)},
7882513b 511 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
bc791098
JB		 512 [HWSIM_ATTR_CHANNELS] = { .type = NLA_U32 },
513 [HWSIM_ATTR_RADIO_ID] = { .type = NLA_U32 },
26b0e411
JB		 514 [HWSIM_ATTR_REG_HINT_ALPHA2] = { .type = NLA_STRING, .len = 2 },
515 [HWSIM_ATTR_REG_CUSTOM_REG] = { .type = NLA_U32 },
516 [HWSIM_ATTR_REG_STRICT_REG] = { .type = NLA_FLAG },
8c66a3d9 517 [HWSIM_ATTR_SUPPORT_P2P_DEVICE] = { .type = NLA_FLAG },
e9ed49bf 518 [HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE] = { .type = NLA_FLAG },
de29eda8
JB		 519 [HWSIM_ATTR_RADIO_NAME] = { .type = NLA_STRING },
520 [HWSIM_ATTR_NO_VIF] = { .type = NLA_FLAG },
521 [HWSIM_ATTR_FREQ] = { .type = NLA_U32 },
7882513b 522};
acc1e7a3 523
de0421d5
JB		 524static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
525 struct sk_buff *skb,
526 struct ieee80211_channel *chan);
527
528/* sysfs attributes */
529static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
530{
531 struct mac80211_hwsim_data *data = dat;
532 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
533 struct sk_buff *skb;
534 struct ieee80211_pspoll *pspoll;
535
536 if (!vp->assoc)
537 return;
538
539 wiphy_debug(data->hw->wiphy,
540 "%s: send PS-Poll to %pM for aid %d\n",
541 __func__, vp->bssid, vp->aid);
542
543 skb = dev_alloc_skb(sizeof(*pspoll));
544 if (!skb)
545 return;
546 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
547 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
548 IEEE80211_STYPE_PSPOLL |
549 IEEE80211_FCTL_PM);
550 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
551 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
552 memcpy(pspoll->ta, mac, ETH_ALEN);
553
554 rcu_read_lock();
555 mac80211_hwsim_tx_frame(data->hw, skb,
556 rcu_dereference(vif->chanctx_conf)->def.chan);
557 rcu_read_unlock();
558}
559
560static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
561 struct ieee80211_vif *vif, int ps)
562{
563 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
564 struct sk_buff *skb;
565 struct ieee80211_hdr *hdr;
566
567 if (!vp->assoc)
568 return;
569
570 wiphy_debug(data->hw->wiphy,
571 "%s: send data::nullfunc to %pM ps=%d\n",
572 __func__, vp->bssid, ps);
573
574 skb = dev_alloc_skb(sizeof(*hdr));
575 if (!skb)
576 return;
577 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
578 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
579 IEEE80211_STYPE_NULLFUNC |
580 (ps ? IEEE80211_FCTL_PM : 0));
581 hdr->duration_id = cpu_to_le16(0);
582 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
583 memcpy(hdr->addr2, mac, ETH_ALEN);
584 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
585
586 rcu_read_lock();
587 mac80211_hwsim_tx_frame(data->hw, skb,
588 rcu_dereference(vif->chanctx_conf)->def.chan);
589 rcu_read_unlock();
590}
591
592
593static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
594 struct ieee80211_vif *vif)
595{
596 struct mac80211_hwsim_data *data = dat;
597 hwsim_send_nullfunc(data, mac, vif, 1);
598}
599
600static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
601 struct ieee80211_vif *vif)
602{
603 struct mac80211_hwsim_data *data = dat;
604 hwsim_send_nullfunc(data, mac, vif, 0);
605}
606
607static int hwsim_fops_ps_read(void *dat, u64 *val)
608{
609 struct mac80211_hwsim_data *data = dat;
610 *val = data->ps;
611 return 0;
612}
613
614static int hwsim_fops_ps_write(void *dat, u64 val)
615{
616 struct mac80211_hwsim_data *data = dat;
617 enum ps_mode old_ps;
618
619 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
620 val != PS_MANUAL_POLL)
621 return -EINVAL;
622
623 old_ps = data->ps;
624 data->ps = val;
625
626 if (val == PS_MANUAL_POLL) {
627 ieee80211_iterate_active_interfaces(data->hw,
628 IEEE80211_IFACE_ITER_NORMAL,
629 hwsim_send_ps_poll, data);
630 data->ps_poll_pending = true;
631 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
632 ieee80211_iterate_active_interfaces(data->hw,
633 IEEE80211_IFACE_ITER_NORMAL,
634 hwsim_send_nullfunc_ps,
635 data);
636 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
637 ieee80211_iterate_active_interfaces(data->hw,
638 IEEE80211_IFACE_ITER_NORMAL,
639 hwsim_send_nullfunc_no_ps,
640 data);
641 }
642
643 return 0;
644}
645
646DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
647 "%llu\n");
648
649static int hwsim_write_simulate_radar(void *dat, u64 val)
650{
651 struct mac80211_hwsim_data *data = dat;
652
653 ieee80211_radar_detected(data->hw);
654
655 return 0;
656}
657
658DEFINE_SIMPLE_ATTRIBUTE(hwsim_simulate_radar, NULL,
659 hwsim_write_simulate_radar, "%llu\n");
660
661static int hwsim_fops_group_read(void *dat, u64 *val)
662{
663 struct mac80211_hwsim_data *data = dat;
664 *val = data->group;
665 return 0;
666}
667
668static int hwsim_fops_group_write(void *dat, u64 val)
669{
670 struct mac80211_hwsim_data *data = dat;
671 data->group = val;
672 return 0;
673}
674
675DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
676 hwsim_fops_group_read, hwsim_fops_group_write,
677 "%llx\n");
678
d0cf9c0d
SH		 679static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
680 struct net_device *dev)
acc1e7a3
JM		 681{
682 /* TODO: allow packet injection */
683 dev_kfree_skb(skb);
6ed10654 684 return NETDEV_TX_OK;
acc1e7a3
JM		 685}
686
b66851c3
TP		 687static inline u64 mac80211_hwsim_get_tsf_raw(void)
688{
689 return ktime_to_us(ktime_get_real());
690}
691
2f40b940
JC		 692static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
693{
b66851c3 694 u64 now = mac80211_hwsim_get_tsf_raw();
2f40b940
JC		 695 return cpu_to_le64(now + data->tsf_offset);
696}
acc1e7a3 697
12ce8ba3 698static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
b66851c3 699 struct ieee80211_vif *vif)
12ce8ba3
JC		 700{
701 struct mac80211_hwsim_data *data = hw->priv;
702 return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
703}
704
705static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
706 struct ieee80211_vif *vif, u64 tsf)
707{
708 struct mac80211_hwsim_data *data = hw->priv;
45034bfb 709 u64 now = mac80211_hwsim_get_tsf(hw, vif);
c51f8783 710 u32 bcn_int = data->beacon_int;
5d26b508 711 u64 delta = abs64(tsf - now);
45034bfb 712
c51f8783 713 /* adjust after beaconing with new timestamp at old TBTT */
5d26b508
AB		 714 if (tsf > now) {
715 data->tsf_offset += delta;
716 data->bcn_delta = do_div(delta, bcn_int);
717 } else {
718 data->tsf_offset -= delta;
719 data->bcn_delta = -do_div(delta, bcn_int);
720 }
12ce8ba3
JC		 721}
722
acc1e7a3 723static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
e8261171
JB		 724 struct sk_buff *tx_skb,
725 struct ieee80211_channel *chan)
acc1e7a3
JM		 726{
727 struct mac80211_hwsim_data *data = hw->priv;
728 struct sk_buff *skb;
729 struct hwsim_radiotap_hdr *hdr;
730 u16 flags;
731 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
732 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
733
734 if (!netif_running(hwsim_mon))
735 return;
736
737 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
738 if (skb == NULL)
739 return;
740
741 hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
742 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
743 hdr->hdr.it_pad = 0;
744 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
f248f105
JM		 745 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
746 (1 << IEEE80211_RADIOTAP_RATE) |
2f40b940 747 (1 << IEEE80211_RADIOTAP_TSFT) |
f248f105 748 (1 << IEEE80211_RADIOTAP_CHANNEL));
2f40b940 749 hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
acc1e7a3
JM		 750 hdr->rt_flags = 0;
751 hdr->rt_rate = txrate->bitrate / 5;
e8261171 752 hdr->rt_channel = cpu_to_le16(chan->center_freq);
acc1e7a3
JM		 753 flags = IEEE80211_CHAN_2GHZ;
754 if (txrate->flags & IEEE80211_RATE_ERP_G)
755 flags |= IEEE80211_CHAN_OFDM;
756 else
757 flags |= IEEE80211_CHAN_CCK;
758 hdr->rt_chbitmask = cpu_to_le16(flags);
759
760 skb->dev = hwsim_mon;
761 skb_set_mac_header(skb, 0);
762 skb->ip_summed = CHECKSUM_UNNECESSARY;
763 skb->pkt_type = PACKET_OTHERHOST;
f248f105 764 skb->protocol = htons(ETH_P_802_2);
acc1e7a3
JM		 765 memset(skb->cb, 0, sizeof(skb->cb));
766 netif_rx(skb);
767}
768
769
e8261171
JB		 770static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
771 const u8 *addr)
6c085227 772{
6c085227 773 struct sk_buff *skb;
76a56eb3 774 struct hwsim_radiotap_ack_hdr *hdr;
6c085227
JM		 775 u16 flags;
776 struct ieee80211_hdr *hdr11;
777
778 if (!netif_running(hwsim_mon))
779 return;
780
781 skb = dev_alloc_skb(100);
782 if (skb == NULL)
783 return;
784
76a56eb3 785 hdr = (struct hwsim_radiotap_ack_hdr *) skb_put(skb, sizeof(*hdr));
6c085227
JM		 786 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
787 hdr->hdr.it_pad = 0;
788 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
789 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
790 (1 << IEEE80211_RADIOTAP_CHANNEL));
791 hdr->rt_flags = 0;
76a56eb3 792 hdr->pad = 0;
e8261171 793 hdr->rt_channel = cpu_to_le16(chan->center_freq);
6c085227
JM		 794 flags = IEEE80211_CHAN_2GHZ;
795 hdr->rt_chbitmask = cpu_to_le16(flags);
796
797 hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
798 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
799 IEEE80211_STYPE_ACK);
800 hdr11->duration_id = cpu_to_le16(0);
801 memcpy(hdr11->addr1, addr, ETH_ALEN);
802
803 skb->dev = hwsim_mon;
804 skb_set_mac_header(skb, 0);
805 skb->ip_summed = CHECKSUM_UNNECESSARY;
806 skb->pkt_type = PACKET_OTHERHOST;
807 skb->protocol = htons(ETH_P_802_2);
808 memset(skb->cb, 0, sizeof(skb->cb));
809 netif_rx(skb);
810}
811
3283e286
JB		 812struct mac80211_hwsim_addr_match_data {
813 u8 addr[ETH_ALEN];
814 bool ret;
815};
816
817static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
818 struct ieee80211_vif *vif)
819{
820 struct mac80211_hwsim_addr_match_data *md = data;
821
822 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
823 md->ret = true;
824}
825
826static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
827 const u8 *addr)
828{
829 struct mac80211_hwsim_addr_match_data md = {
830 .ret = false,
831 };
832
833 memcpy(md.addr, addr, ETH_ALEN);
834
835 ieee80211_iterate_active_interfaces_atomic(data->hw,
836 IEEE80211_IFACE_ITER_NORMAL,
837 mac80211_hwsim_addr_iter,
838 &md);
839
840 return md.ret;
841}
6c085227 842
fc6971d4
JM		 843static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
844 struct sk_buff *skb)
845{
846 switch (data->ps) {
847 case PS_DISABLED:
848 return true;
849 case PS_ENABLED:
850 return false;
851 case PS_AUTO_POLL:
852 /* TODO: accept (some) Beacons by default and other frames only
853 * if pending PS-Poll has been sent */
854 return true;
855 case PS_MANUAL_POLL:
856 /* Allow unicast frames to own address if there is a pending
857 * PS-Poll */
858 if (data->ps_poll_pending &&
3283e286 859 mac80211_hwsim_addr_match(data, skb->data + 4)) {
fc6971d4
JM		 860 data->ps_poll_pending = false;
861 return true;
862 }
863 return false;
864 }
865
866 return true;
867}
868
7882513b
JL		 869static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
870 struct sk_buff *my_skb,
15e47304 871 int dst_portid)
7882513b
JL		 872{
873 struct sk_buff *skb;
874 struct mac80211_hwsim_data *data = hw->priv;
875 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
876 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
877 void *msg_head;
878 unsigned int hwsim_flags = 0;
879 int i;
880 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
881
7882513b
JL		 882 if (data->ps != PS_DISABLED)
883 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
884 /* If the queue contains MAX_QUEUE skb's drop some */
885 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
886 /* Droping until WARN_QUEUE level */
2155c3f8 887 while (skb_queue_len(&data->pending) >= WARN_QUEUE) {
b7bc9679 888 ieee80211_free_txskb(hw, skb_dequeue(&data->pending));
2155c3f8
BG		 889 data->tx_dropped++;
890 }
7882513b
JL		 891 }
892
58050fce 893 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
7882513b
JL		 894 if (skb == NULL)
895 goto nla_put_failure;
896
897 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
898 HWSIM_CMD_FRAME);
899 if (msg_head == NULL) {
900 printk(KERN_DEBUG "mac80211_hwsim: problem with msg_head\n");
901 goto nla_put_failure;
902 }
903
633c9389 904 if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
9ddd12af 905 ETH_ALEN, data->addresses[1].addr))
633c9389 906 goto nla_put_failure;
265dc7f0 907
7882513b 908 /* We get the skb->data */
633c9389
DM		 909 if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
910 goto nla_put_failure;
7882513b
JL		 911
912 /* We get the flags for this transmission, and we translate them to
913 wmediumd flags */
914
915 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
916 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
917
918 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
919 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
920
633c9389
DM		 921 if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
922 goto nla_put_failure;
7882513b 923
4f86ed8f
BG		 924 if (nla_put_u32(skb, HWSIM_ATTR_FREQ, data->channel->center_freq))
925 goto nla_put_failure;
926
7882513b
JL		 927 /* We get the tx control (rate and retries) info*/
928
929 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
930 tx_attempts[i].idx = info->status.rates[i].idx;
931 tx_attempts[i].count = info->status.rates[i].count;
932 }
933
633c9389
DM		 934 if (nla_put(skb, HWSIM_ATTR_TX_INFO,
935 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
936 tx_attempts))
937 goto nla_put_failure;
7882513b
JL		 938
939 /* We create a cookie to identify this skb */
633c9389
DM		 940 if (nla_put_u64(skb, HWSIM_ATTR_COOKIE, (unsigned long) my_skb))
941 goto nla_put_failure;
7882513b
JL		 942
943 genlmsg_end(skb, msg_head);
15e47304 944 genlmsg_unicast(&init_net, skb, dst_portid);
7882513b
JL		 945
946 /* Enqueue the packet */
947 skb_queue_tail(&data->pending, my_skb);
2155c3f8
BG		 948 data->tx_pkts++;
949 data->tx_bytes += my_skb->len;
7882513b
JL		 950 return;
951
952nla_put_failure:
c393862f 953 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
b7bc9679 954 ieee80211_free_txskb(hw, my_skb);
2155c3f8 955 data->tx_failed++;
7882513b
JL		 956}
957
e8261171
JB		 958static bool hwsim_chans_compat(struct ieee80211_channel *c1,
959 struct ieee80211_channel *c2)
960{
961 if (!c1 || !c2)
962 return false;
963
964 return c1->center_freq == c2->center_freq;
965}
966
967struct tx_iter_data {
968 struct ieee80211_channel *channel;
969 bool receive;
970};
971
972static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
973 struct ieee80211_vif *vif)
974{
975 struct tx_iter_data *data = _data;
976
977 if (!vif->chanctx_conf)
978 return;
979
980 if (!hwsim_chans_compat(data->channel,
4bf88530 981 rcu_dereference(vif->chanctx_conf)->def.chan))
e8261171
JB		 982 return;
983
984 data->receive = true;
985}
986
7882513b 987static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
e8261171
JB		 988 struct sk_buff *skb,
989 struct ieee80211_channel *chan)
acc1e7a3 990{
0e057d73
JB		 991 struct mac80211_hwsim_data *data = hw->priv, *data2;
992 bool ack = false;
e36cfdc9 993 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
acc1e7a3 994 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
e36cfdc9 995 struct ieee80211_rx_status rx_status;
b66851c3 996 u64 now;
acc1e7a3
JM		 997
998 memset(&rx_status, 0, sizeof(rx_status));
f4bda337 999 rx_status.flag |= RX_FLAG_MACTIME_START;
e8261171
JB		 1000 rx_status.freq = chan->center_freq;
1001 rx_status.band = chan->band;
dad6330d
KB		 1002 if (info->control.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) {
1003 rx_status.rate_idx =
1004 ieee80211_rate_get_vht_mcs(&info->control.rates[0]);
1005 rx_status.vht_nss =
1006 ieee80211_rate_get_vht_nss(&info->control.rates[0]);
1007 rx_status.flag |= RX_FLAG_VHT;
1008 } else {
1009 rx_status.rate_idx = info->control.rates[0].idx;
1010 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
1011 rx_status.flag |= RX_FLAG_HT;
1012 }
281ed297
JM		 1013 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
1014 rx_status.flag |= RX_FLAG_40MHZ;
1015 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
1016 rx_status.flag |= RX_FLAG_SHORT_GI;
4b14c96d 1017 /* TODO: simulate real signal strength (and optional packet loss) */
bdd7bd16 1018 rx_status.signal = data->power_level - 50;
acc1e7a3 1019
fc6971d4
JM		 1020 if (data->ps != PS_DISABLED)
1021 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1022
90e3012e
JB		 1023 /* release the skb's source info */
1024 skb_orphan(skb);
c0acf38e 1025 skb_dst_drop(skb);
90e3012e
JB		 1026 skb->mark = 0;
1027 secpath_reset(skb);
1028 nf_reset(skb);
1029
b66851c3
TP		 1030 /*
1031 * Get absolute mactime here so all HWs RX at the "same time", and
1032 * absolute TX time for beacon mactime so the timestamp matches.
1033 * Giving beacons a different mactime than non-beacons looks messy, but
1034 * it helps the Toffset be exact and a ~10us mactime discrepancy
1035 * probably doesn't really matter.
1036 */
1037 if (ieee80211_is_beacon(hdr->frame_control) ||
1038 ieee80211_is_probe_resp(hdr->frame_control))
1039 now = data->abs_bcn_ts;
1040 else
1041 now = mac80211_hwsim_get_tsf_raw();
1042
acc1e7a3 1043 /* Copy skb to all enabled radios that are on the current frequency */
0e057d73
JB		 1044 spin_lock(&hwsim_radio_lock);
1045 list_for_each_entry(data2, &hwsim_radios, list) {
acc1e7a3 1046 struct sk_buff *nskb;
e8261171
JB		 1047 struct tx_iter_data tx_iter_data = {
1048 .receive = false,
1049 .channel = chan,
1050 };
acc1e7a3 1051
0e057d73 1052 if (data == data2)
acc1e7a3 1053 continue;
0e057d73 1054
e8261171
JB		 1055 if (!data2->started || (data2->idle && !data2->tmp_chan) ||
1056 !hwsim_ps_rx_ok(data2, skb))
acc1e7a3
JM		 1057 continue;
1058
e8261171
JB		 1059 if (!(data->group & data2->group))
1060 continue;
1061
1062 if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
1063 !hwsim_chans_compat(chan, data2->channel)) {
1064 ieee80211_iterate_active_interfaces_atomic(
8b2c9824
JB		 1065 data2->hw, IEEE80211_IFACE_ITER_NORMAL,
1066 mac80211_hwsim_tx_iter, &tx_iter_data);
e8261171
JB		 1067 if (!tx_iter_data.receive)
1068 continue;
1069 }
1070
90b9e446
JB		 1071 /*
1072 * reserve some space for our vendor and the normal
1073 * radiotap header, since we're copying anyway
1074 */
a357d7f9
JB		 1075 if (skb->len < PAGE_SIZE && paged_rx) {
1076 struct page *page = alloc_page(GFP_ATOMIC);
1077
1078 if (!page)
1079 continue;
1080
1081 nskb = dev_alloc_skb(128);
1082 if (!nskb) {
1083 __free_page(page);
1084 continue;
1085 }
1086
1087 memcpy(page_address(page), skb->data, skb->len);
1088 skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
1089 } else {
1090 nskb = skb_copy(skb, GFP_ATOMIC);
1091 if (!nskb)
1092 continue;
1093 }
acc1e7a3 1094
265dc7f0 1095 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
0e057d73 1096 ack = true;
f483ad25 1097
b66851c3 1098 rx_status.mactime = now + data2->tsf_offset;
90b9e446 1099
f1d58c25 1100 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
2155c3f8
BG		 1101 data2->rx_pkts++;
1102 data2->rx_bytes += nskb->len;
f1d58c25 1103 ieee80211_rx_irqsafe(data2->hw, nskb);
acc1e7a3 1104 }
0e057d73 1105 spin_unlock(&hwsim_radio_lock);
acc1e7a3 1106
e36cfdc9
JM		 1107 return ack;
1108}
1109
36323f81
TH		 1110static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
1111 struct ieee80211_tx_control *control,
1112 struct sk_buff *skb)
e36cfdc9 1113{
e8261171
JB		 1114 struct mac80211_hwsim_data *data = hw->priv;
1115 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1116 struct ieee80211_chanctx_conf *chanctx_conf;
1117 struct ieee80211_channel *channel;
0e057d73 1118 bool ack;
15e47304 1119 u32 _portid;
e36cfdc9 1120
e8261171 1121 if (WARN_ON(skb->len < 10)) {
e36cfdc9 1122 /* Should not happen; just a sanity check for addr1 use */
fe0f3cd2 1123 ieee80211_free_txskb(hw, skb);
7bb45683 1124 return;
e36cfdc9
JM		 1125 }
1126
361c3e04 1127 if (!data->use_chanctx) {
e8261171
JB		 1128 channel = data->channel;
1129 } else if (txi->hw_queue == 4) {
1130 channel = data->tmp_chan;
1131 } else {
1132 chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf);
1133 if (chanctx_conf)
4bf88530 1134 channel = chanctx_conf->def.chan;
e8261171
JB		 1135 else
1136 channel = NULL;
1137 }
1138
1139 if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
fe0f3cd2 1140 ieee80211_free_txskb(hw, skb);
e8261171
JB		 1141 return;
1142 }
1143
1144 if (data->idle && !data->tmp_chan) {
1145 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
fe0f3cd2 1146 ieee80211_free_txskb(hw, skb);
e8261171
JB		 1147 return;
1148 }
1149
1150 if (txi->control.vif)
1151 hwsim_check_magic(txi->control.vif);
1152 if (control->sta)
1153 hwsim_check_sta_magic(control->sta);
1154
81338410 1155 if (hw->flags & IEEE80211_HW_SUPPORTS_RC_TABLE)
1eb32179
KB		 1156 ieee80211_get_tx_rates(txi->control.vif, control->sta, skb,
1157 txi->control.rates,
1158 ARRAY_SIZE(txi->control.rates));
e8261171 1159
1eb32179 1160 txi->rate_driver_data[0] = channel;
e8261171
JB		 1161 mac80211_hwsim_monitor_rx(hw, skb, channel);
1162
7882513b 1163 /* wmediumd mode check */
15e47304 1164 _portid = ACCESS_ONCE(wmediumd_portid);
7882513b 1165
15e47304
EB		 1166 if (_portid)
1167 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
7882513b
JL		 1168
1169 /* NO wmediumd detected, perfect medium simulation */
2155c3f8
BG		 1170 data->tx_pkts++;
1171 data->tx_bytes += skb->len;
e8261171 1172 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
7882513b 1173
6c085227
JM		 1174 if (ack && skb->len >= 16) {
1175 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
e8261171 1176 mac80211_hwsim_monitor_ack(channel, hdr->addr2);
6c085227 1177 }
e36cfdc9 1178
e6a9854b 1179 ieee80211_tx_info_clear_status(txi);
2a4ffa4c
JC		 1180
1181 /* frame was transmitted at most favorable rate at first attempt */
1182 txi->control.rates[0].count = 1;
1183 txi->control.rates[1].idx = -1;
1184
e6a9854b
JB		 1185 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
1186 txi->flags |= IEEE80211_TX_STAT_ACK;
acc1e7a3 1187 ieee80211_tx_status_irqsafe(hw, skb);
acc1e7a3
JM		 1188}
1189
1190
1191static int mac80211_hwsim_start(struct ieee80211_hw *hw)
1192{
1193 struct mac80211_hwsim_data *data = hw->priv;
c96c31e4 1194 wiphy_debug(hw->wiphy, "%s\n", __func__);
3db1cd5c 1195 data->started = true;
acc1e7a3
JM		 1196 return 0;
1197}
1198
1199
1200static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
1201{
1202 struct mac80211_hwsim_data *data = hw->priv;
3db1cd5c 1203 data->started = false;
01e59e46 1204 tasklet_hrtimer_cancel(&data->beacon_timer);
c96c31e4 1205 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 1206}
1207
1208
1209static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
1ed32e4f 1210 struct ieee80211_vif *vif)
acc1e7a3 1211{
c96c31e4 1212 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 1213 __func__, ieee80211_vif_type_p2p(vif),
1214 vif->addr);
1ed32e4f 1215 hwsim_set_magic(vif);
e8261171
JB		 1216
1217 vif->cab_queue = 0;
1218 vif->hw_queue[IEEE80211_AC_VO] = 0;
1219 vif->hw_queue[IEEE80211_AC_VI] = 1;
1220 vif->hw_queue[IEEE80211_AC_BE] = 2;
1221 vif->hw_queue[IEEE80211_AC_BK] = 3;
1222
acc1e7a3
JM		 1223 return 0;
1224}
1225
1226
c35d0270
JB		 1227static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
1228 struct ieee80211_vif *vif,
2ca27bcf
JB		 1229 enum nl80211_iftype newtype,
1230 bool newp2p)
c35d0270 1231{
2ca27bcf 1232 newtype = ieee80211_iftype_p2p(newtype, newp2p);
c35d0270
JB		 1233 wiphy_debug(hw->wiphy,
1234 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
2ca27bcf
JB		 1235 __func__, ieee80211_vif_type_p2p(vif),
1236 newtype, vif->addr);
c35d0270
JB		 1237 hwsim_check_magic(vif);
1238
3eb92f6a
JB		 1239 /*
1240 * interface may change from non-AP to AP in
1241 * which case this needs to be set up again
1242 */
1243 vif->cab_queue = 0;
1244
c35d0270
JB		 1245 return 0;
1246}
1247
acc1e7a3 1248static void mac80211_hwsim_remove_interface(
1ed32e4f 1249 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
acc1e7a3 1250{
c96c31e4 1251 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 1252 __func__, ieee80211_vif_type_p2p(vif),
1253 vif->addr);
1ed32e4f
JB		 1254 hwsim_check_magic(vif);
1255 hwsim_clear_magic(vif);
acc1e7a3
JM		 1256}
1257
e8261171
JB		 1258static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
1259 struct sk_buff *skb,
1260 struct ieee80211_channel *chan)
1261{
1262 u32 _pid = ACCESS_ONCE(wmediumd_portid);
1263
81338410 1264 if (hw->flags & IEEE80211_HW_SUPPORTS_RC_TABLE) {
1eb32179
KB		 1265 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1266 ieee80211_get_tx_rates(txi->control.vif, NULL, skb,
1267 txi->control.rates,
1268 ARRAY_SIZE(txi->control.rates));
1269 }
1270
e8261171
JB		 1271 mac80211_hwsim_monitor_rx(hw, skb, chan);
1272
1273 if (_pid)
1274 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
1275
1276 mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
1277 dev_kfree_skb(skb);
1278}
acc1e7a3
JM		 1279
1280static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
1281 struct ieee80211_vif *vif)
1282{
b66851c3
TP		 1283 struct mac80211_hwsim_data *data = arg;
1284 struct ieee80211_hw *hw = data->hw;
1285 struct ieee80211_tx_info *info;
1286 struct ieee80211_rate *txrate;
1287 struct ieee80211_mgmt *mgmt;
acc1e7a3 1288 struct sk_buff *skb;
acc1e7a3 1289
8aa21e6f
JB		 1290 hwsim_check_magic(vif);
1291
55b39619 1292 if (vif->type != NL80211_IFTYPE_AP &&
2b2d7795
JB		 1293 vif->type != NL80211_IFTYPE_MESH_POINT &&
1294 vif->type != NL80211_IFTYPE_ADHOC)
acc1e7a3
JM		 1295 return;
1296
1297 skb = ieee80211_beacon_get(hw, vif);
1298 if (skb == NULL)
1299 return;
b66851c3 1300 info = IEEE80211_SKB_CB(skb);
81338410 1301 if (hw->flags & IEEE80211_HW_SUPPORTS_RC_TABLE)
1eb32179
KB		 1302 ieee80211_get_tx_rates(vif, NULL, skb,
1303 info->control.rates,
1304 ARRAY_SIZE(info->control.rates));
1305
b66851c3
TP		 1306 txrate = ieee80211_get_tx_rate(hw, info);
1307
1308 mgmt = (struct ieee80211_mgmt *) skb->data;
1309 /* fake header transmission time */
1310 data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
1311 mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
1312 data->tsf_offset +
1313 24 * 8 * 10 / txrate->bitrate);
7882513b 1314
e8261171 1315 mac80211_hwsim_tx_frame(hw, skb,
4bf88530 1316 rcu_dereference(vif->chanctx_conf)->def.chan);
0037db63
AO		 1317
1318 if (vif->csa_active && ieee80211_csa_is_complete(vif))
1319 ieee80211_csa_finish(vif);
acc1e7a3
JM		 1320}
1321
01e59e46
TP		 1322static enum hrtimer_restart
1323mac80211_hwsim_beacon(struct hrtimer *timer)
acc1e7a3 1324{
01e59e46
TP		 1325 struct mac80211_hwsim_data *data =
1326 container_of(timer, struct mac80211_hwsim_data,
1327 beacon_timer.timer);
1328 struct ieee80211_hw *hw = data->hw;
1329 u64 bcn_int = data->beacon_int;
1330 ktime_t next_bcn;
acc1e7a3 1331
4c4c671a 1332 if (!data->started)
01e59e46 1333 goto out;
acc1e7a3 1334
f248f105 1335 ieee80211_iterate_active_interfaces_atomic(
8b2c9824 1336 hw, IEEE80211_IFACE_ITER_NORMAL,
b66851c3 1337 mac80211_hwsim_beacon_tx, data);
acc1e7a3 1338
c51f8783
TP		 1339 /* beacon at new TBTT + beacon interval */
1340 if (data->bcn_delta) {
1341 bcn_int -= data->bcn_delta;
1342 data->bcn_delta = 0;
1343 }
1344
01e59e46
TP		 1345 next_bcn = ktime_add(hrtimer_get_expires(timer),
1346 ns_to_ktime(bcn_int * 1000));
1347 tasklet_hrtimer_start(&data->beacon_timer, next_bcn, HRTIMER_MODE_ABS);
1348out:
1349 return HRTIMER_NORESTART;
acc1e7a3
JM		 1350}
1351
675a0b04
KB		 1352static const char * const hwsim_chanwidths[] = {
1353 [NL80211_CHAN_WIDTH_20_NOHT] = "noht",
1354 [NL80211_CHAN_WIDTH_20] = "ht20",
1355 [NL80211_CHAN_WIDTH_40] = "ht40",
1356 [NL80211_CHAN_WIDTH_80] = "vht80",
1357 [NL80211_CHAN_WIDTH_80P80] = "vht80p80",
1358 [NL80211_CHAN_WIDTH_160] = "vht160",
0aaffa9b 1359};
acc1e7a3 1360
e8975581 1361static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
acc1e7a3
JM		 1362{
1363 struct mac80211_hwsim_data *data = hw->priv;
e8975581 1364 struct ieee80211_conf *conf = &hw->conf;
0f78231b
JB		 1365 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
1366 [IEEE80211_SMPS_AUTOMATIC] = "auto",
1367 [IEEE80211_SMPS_OFF] = "off",
1368 [IEEE80211_SMPS_STATIC] = "static",
1369 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
1370 };
1371
675a0b04
KB		 1372 if (conf->chandef.chan)
1373 wiphy_debug(hw->wiphy,
1374 "%s (freq=%d(%d - %d)/%s idle=%d ps=%d smps=%s)\n",
1375 __func__,
1376 conf->chandef.chan->center_freq,
1377 conf->chandef.center_freq1,
1378 conf->chandef.center_freq2,
1379 hwsim_chanwidths[conf->chandef.width],
1380 !!(conf->flags & IEEE80211_CONF_IDLE),
1381 !!(conf->flags & IEEE80211_CONF_PS),
1382 smps_modes[conf->smps_mode]);
1383 else
1384 wiphy_debug(hw->wiphy,
1385 "%s (freq=0 idle=%d ps=%d smps=%s)\n",
1386 __func__,
1387 !!(conf->flags & IEEE80211_CONF_IDLE),
1388 !!(conf->flags & IEEE80211_CONF_PS),
1389 smps_modes[conf->smps_mode]);
acc1e7a3 1390
70541839
JM		 1391 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1392
675a0b04 1393 data->channel = conf->chandef.chan;
e8261171 1394
361c3e04 1395 WARN_ON(data->channel && data->use_chanctx);
e8261171 1396
bdd7bd16 1397 data->power_level = conf->power_level;
4c4c671a 1398 if (!data->started || !data->beacon_int)
01e59e46
TP		 1399 tasklet_hrtimer_cancel(&data->beacon_timer);
1400 else if (!hrtimer_is_queued(&data->beacon_timer.timer)) {
c51f8783
TP		 1401 u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
1402 u32 bcn_int = data->beacon_int;
1403 u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1404
01e59e46 1405 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1406 ns_to_ktime(until_tbtt * 1000),
01e59e46
TP		 1407 HRTIMER_MODE_REL);
1408 }
acc1e7a3
JM		 1409
1410 return 0;
1411}
1412
1413
1414static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
1415 unsigned int changed_flags,
3ac64bee 1416 unsigned int *total_flags,u64 multicast)
acc1e7a3
JM		 1417{
1418 struct mac80211_hwsim_data *data = hw->priv;
1419
c96c31e4 1420 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 1421
1422 data->rx_filter = 0;
1423 if (*total_flags & FIF_PROMISC_IN_BSS)
1424 data->rx_filter |= FIF_PROMISC_IN_BSS;
1425 if (*total_flags & FIF_ALLMULTI)
1426 data->rx_filter |= FIF_ALLMULTI;
1427
1428 *total_flags = data->rx_filter;
1429}
1430
0bb861e6
JM		 1431static void mac80211_hwsim_bcn_en_iter(void *data, u8 *mac,
1432 struct ieee80211_vif *vif)
1433{
1434 unsigned int *count = data;
1435 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1436
1437 if (vp->bcn_en)
1438 (*count)++;
1439}
1440
8aa21e6f
JB		 1441static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
1442 struct ieee80211_vif *vif,
1443 struct ieee80211_bss_conf *info,
1444 u32 changed)
1445{
fc6971d4 1446 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
57c4d7b4 1447 struct mac80211_hwsim_data *data = hw->priv;
fc6971d4 1448
8aa21e6f 1449 hwsim_check_magic(vif);
fe63bfa3 1450
0bb861e6
JM		 1451 wiphy_debug(hw->wiphy, "%s(changed=0x%x vif->addr=%pM)\n",
1452 __func__, changed, vif->addr);
fe63bfa3 1453
2d0ddec5 1454 if (changed & BSS_CHANGED_BSSID) {
c96c31e4
JP		 1455 wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
1456 __func__, info->bssid);
2d0ddec5
JB		 1457 memcpy(vp->bssid, info->bssid, ETH_ALEN);
1458 }
1459
fe63bfa3 1460 if (changed & BSS_CHANGED_ASSOC) {
c96c31e4
JP		 1461 wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
1462 info->assoc, info->aid);
fc6971d4
JM		 1463 vp->assoc = info->assoc;
1464 vp->aid = info->aid;
fe63bfa3
JM		 1465 }
1466
57c4d7b4 1467 if (changed & BSS_CHANGED_BEACON_INT) {
c96c31e4 1468 wiphy_debug(hw->wiphy, " BCNINT: %d\n", info->beacon_int);
01e59e46
TP		 1469 data->beacon_int = info->beacon_int * 1024;
1470 }
1471
1472 if (changed & BSS_CHANGED_BEACON_ENABLED) {
1473 wiphy_debug(hw->wiphy, " BCN EN: %d\n", info->enable_beacon);
0bb861e6 1474 vp->bcn_en = info->enable_beacon;
01e59e46
TP		 1475 if (data->started &&
1476 !hrtimer_is_queued(&data->beacon_timer.timer) &&
1477 info->enable_beacon) {
c51f8783
TP		 1478 u64 tsf, until_tbtt;
1479 u32 bcn_int;
01e59e46
TP		 1480 if (WARN_ON(!data->beacon_int))
1481 data->beacon_int = 1000 * 1024;
c51f8783
TP		 1482 tsf = mac80211_hwsim_get_tsf(hw, vif);
1483 bcn_int = data->beacon_int;
1484 until_tbtt = bcn_int - do_div(tsf, bcn_int);
01e59e46 1485 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1486 ns_to_ktime(until_tbtt * 1000),
01e59e46 1487 HRTIMER_MODE_REL);
0bb861e6
JM		 1488 } else if (!info->enable_beacon) {
1489 unsigned int count = 0;
cdb1b805 1490 ieee80211_iterate_active_interfaces_atomic(
0bb861e6
JM		 1491 data->hw, IEEE80211_IFACE_ITER_NORMAL,
1492 mac80211_hwsim_bcn_en_iter, &count);
1493 wiphy_debug(hw->wiphy, " beaconing vifs remaining: %u",
1494 count);
1495 if (count == 0)
1496 tasklet_hrtimer_cancel(&data->beacon_timer);
1497 }
57c4d7b4
JB		 1498 }
1499
fe63bfa3 1500 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
c96c31e4
JP		 1501 wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
1502 info->use_cts_prot);
fe63bfa3
JM		 1503 }
1504
1505 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
c96c31e4
JP		 1506 wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
1507 info->use_short_preamble);
fe63bfa3
JM		 1508 }
1509
1510 if (changed & BSS_CHANGED_ERP_SLOT) {
c96c31e4 1511 wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
fe63bfa3
JM		 1512 }
1513
1514 if (changed & BSS_CHANGED_HT) {
4bf88530
JB		 1515 wiphy_debug(hw->wiphy, " HT: op_mode=0x%x\n",
1516 info->ht_operation_mode);
fe63bfa3
JM		 1517 }
1518
1519 if (changed & BSS_CHANGED_BASIC_RATES) {
c96c31e4
JP		 1520 wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
1521 (unsigned long long) info->basic_rates);
fe63bfa3 1522 }
cbc668a7
JB		 1523
1524 if (changed & BSS_CHANGED_TXPOWER)
1525 wiphy_debug(hw->wiphy, " TX Power: %d dBm\n", info->txpower);
8aa21e6f
JB		 1526}
1527
1d669cbf
JB		 1528static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
1529 struct ieee80211_vif *vif,
1530 struct ieee80211_sta *sta)
1531{
1532 hwsim_check_magic(vif);
1533 hwsim_set_sta_magic(sta);
1534
1535 return 0;
1536}
1537
1538static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
1539 struct ieee80211_vif *vif,
1540 struct ieee80211_sta *sta)
1541{
1542 hwsim_check_magic(vif);
1543 hwsim_clear_sta_magic(sta);
1544
1545 return 0;
1546}
1547
8aa21e6f
JB		 1548static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
1549 struct ieee80211_vif *vif,
17741cdc
JB		 1550 enum sta_notify_cmd cmd,
1551 struct ieee80211_sta *sta)
8aa21e6f
JB		 1552{
1553 hwsim_check_magic(vif);
1d669cbf 1554
81c06523 1555 switch (cmd) {
89fad578
CL		 1556 case STA_NOTIFY_SLEEP:
1557 case STA_NOTIFY_AWAKE:
1558 /* TODO: make good use of these flags */
1559 break;
1d669cbf
JB		 1560 default:
1561 WARN(1, "Invalid sta notify: %d\n", cmd);
1562 break;
81c06523
JB		 1563 }
1564}
1565
1566static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
1567 struct ieee80211_sta *sta,
1568 bool set)
1569{
1570 hwsim_check_sta_magic(sta);
1571 return 0;
8aa21e6f 1572}
acc1e7a3 1573
1e898ff8 1574static int mac80211_hwsim_conf_tx(
8a3a3c85
EP		 1575 struct ieee80211_hw *hw,
1576 struct ieee80211_vif *vif, u16 queue,
1e898ff8
JM		 1577 const struct ieee80211_tx_queue_params *params)
1578{
c96c31e4
JP		 1579 wiphy_debug(hw->wiphy,
1580 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1581 __func__, queue,
1582 params->txop, params->cw_min,
1583 params->cw_max, params->aifs);
1e898ff8
JM		 1584 return 0;
1585}
1586
1289723e
HS		 1587static int mac80211_hwsim_get_survey(
1588 struct ieee80211_hw *hw, int idx,
1589 struct survey_info *survey)
1590{
1591 struct ieee80211_conf *conf = &hw->conf;
1592
c96c31e4 1593 wiphy_debug(hw->wiphy, "%s (idx=%d)\n", __func__, idx);
1289723e
HS		 1594
1595 if (idx != 0)
1596 return -ENOENT;
1597
1598 /* Current channel */
675a0b04 1599 survey->channel = conf->chandef.chan;
1289723e
HS		 1600
1601 /*
1602 * Magically conjured noise level --- this is only ok for simulated hardware.
1603 *
1604 * A real driver which cannot determine the real channel noise MUST NOT
1605 * report any noise, especially not a magically conjured one :-)
1606 */
1607 survey->filled = SURVEY_INFO_NOISE_DBM;
1608 survey->noise = -92;
1609
1610 return 0;
1611}
1612
aff89a9b
JB		 1613#ifdef CONFIG_NL80211_TESTMODE
1614/*
1615 * This section contains example code for using netlink
1616 * attributes with the testmode command in nl80211.
1617 */
1618
1619/* These enums need to be kept in sync with userspace */
1620enum hwsim_testmode_attr {
1621 __HWSIM_TM_ATTR_INVALID = 0,
1622 HWSIM_TM_ATTR_CMD = 1,
1623 HWSIM_TM_ATTR_PS = 2,
1624
1625 /* keep last */
1626 __HWSIM_TM_ATTR_AFTER_LAST,
1627 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1628};
1629
1630enum hwsim_testmode_cmd {
1631 HWSIM_TM_CMD_SET_PS = 0,
1632 HWSIM_TM_CMD_GET_PS = 1,
4d6d0ae2
JB		 1633 HWSIM_TM_CMD_STOP_QUEUES = 2,
1634 HWSIM_TM_CMD_WAKE_QUEUES = 3,
aff89a9b
JB		 1635};
1636
1637static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1638 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1639 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1640};
1641
5bc38193 1642static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
52981cd7 1643 struct ieee80211_vif *vif,
5bc38193 1644 void *data, int len)
aff89a9b
JB		 1645{
1646 struct mac80211_hwsim_data *hwsim = hw->priv;
1647 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1648 struct sk_buff *skb;
1649 int err, ps;
1650
1651 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
1652 hwsim_testmode_policy);
1653 if (err)
1654 return err;
1655
1656 if (!tb[HWSIM_TM_ATTR_CMD])
1657 return -EINVAL;
1658
1659 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1660 case HWSIM_TM_CMD_SET_PS:
1661 if (!tb[HWSIM_TM_ATTR_PS])
1662 return -EINVAL;
1663 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1664 return hwsim_fops_ps_write(hwsim, ps);
1665 case HWSIM_TM_CMD_GET_PS:
1666 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1667 nla_total_size(sizeof(u32)));
1668 if (!skb)
1669 return -ENOMEM;
633c9389
DM		 1670 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
1671 goto nla_put_failure;
aff89a9b 1672 return cfg80211_testmode_reply(skb);
4d6d0ae2
JB		 1673 case HWSIM_TM_CMD_STOP_QUEUES:
1674 ieee80211_stop_queues(hw);
1675 return 0;
1676 case HWSIM_TM_CMD_WAKE_QUEUES:
1677 ieee80211_wake_queues(hw);
1678 return 0;
aff89a9b
JB		 1679 default:
1680 return -EOPNOTSUPP;
1681 }
1682
1683 nla_put_failure:
1684 kfree_skb(skb);
1685 return -ENOBUFS;
1686}
1687#endif
1688
8b73d13a
JB		 1689static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1690 struct ieee80211_vif *vif,
1691 enum ieee80211_ampdu_mlme_action action,
0b01f030
JB		 1692 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
1693 u8 buf_size)
8b73d13a
JB		 1694{
1695 switch (action) {
1696 case IEEE80211_AMPDU_TX_START:
1697 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1698 break;
18b559d5
JB		 1699 case IEEE80211_AMPDU_TX_STOP_CONT:
1700 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1701 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
8b73d13a
JB		 1702 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1703 break;
1704 case IEEE80211_AMPDU_TX_OPERATIONAL:
1705 break;
1706 case IEEE80211_AMPDU_RX_START:
1707 case IEEE80211_AMPDU_RX_STOP:
1708 break;
1709 default:
1710 return -EOPNOTSUPP;
1711 }
1712
1713 return 0;
1714}
1715
77be2c54
EG		 1716static void mac80211_hwsim_flush(struct ieee80211_hw *hw,
1717 struct ieee80211_vif *vif,
1718 u32 queues, bool drop)
a80f7c0b 1719{
7882513b 1720 /* Not implemented, queues only on kernel side */
a80f7c0b
JB		 1721}
1722
e8261171 1723static void hw_scan_work(struct work_struct *work)
69068036 1724{
e8261171
JB		 1725 struct mac80211_hwsim_data *hwsim =
1726 container_of(work, struct mac80211_hwsim_data, hw_scan.work);
1727 struct cfg80211_scan_request *req = hwsim->hw_scan_request;
1728 int dwell, i;
69068036 1729
e8261171
JB		 1730 mutex_lock(&hwsim->mutex);
1731 if (hwsim->scan_chan_idx >= req->n_channels) {
1732 wiphy_debug(hwsim->hw->wiphy, "hw scan complete\n");
1733 ieee80211_scan_completed(hwsim->hw, false);
1734 hwsim->hw_scan_request = NULL;
1735 hwsim->hw_scan_vif = NULL;
1736 hwsim->tmp_chan = NULL;
1737 mutex_unlock(&hwsim->mutex);
1738 return;
1739 }
1740
1741 wiphy_debug(hwsim->hw->wiphy, "hw scan %d MHz\n",
1742 req->channels[hwsim->scan_chan_idx]->center_freq);
1743
1744 hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
8fe02e16 1745 if (hwsim->tmp_chan->flags & IEEE80211_CHAN_NO_IR ||
e8261171
JB		 1746 !req->n_ssids) {
1747 dwell = 120;
1748 } else {
1749 dwell = 30;
1750 /* send probes */
1751 for (i = 0; i < req->n_ssids; i++) {
1752 struct sk_buff *probe;
1753
1754 probe = ieee80211_probereq_get(hwsim->hw,
1755 hwsim->hw_scan_vif,
1756 req->ssids[i].ssid,
1757 req->ssids[i].ssid_len,
b9a9ada1 1758 req->ie_len);
e8261171
JB		 1759 if (!probe)
1760 continue;
b9a9ada1
JB		 1761
1762 if (req->ie_len)
1763 memcpy(skb_put(probe, req->ie_len), req->ie,
1764 req->ie_len);
1765
e8261171
JB		 1766 local_bh_disable();
1767 mac80211_hwsim_tx_frame(hwsim->hw, probe,
1768 hwsim->tmp_chan);
1769 local_bh_enable();
1770 }
1771 }
1772 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
1773 msecs_to_jiffies(dwell));
1774 hwsim->scan_chan_idx++;
1775 mutex_unlock(&hwsim->mutex);
69068036
JB		 1776}
1777
1778static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
a060bbfe 1779 struct ieee80211_vif *vif,
c56ef672 1780 struct ieee80211_scan_request *hw_req)
69068036 1781{
e8261171 1782 struct mac80211_hwsim_data *hwsim = hw->priv;
c56ef672 1783 struct cfg80211_scan_request *req = &hw_req->req;
69068036 1784
e8261171
JB		 1785 mutex_lock(&hwsim->mutex);
1786 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1787 mutex_unlock(&hwsim->mutex);
1788 return -EBUSY;
1789 }
1790 hwsim->hw_scan_request = req;
1791 hwsim->hw_scan_vif = vif;
1792 hwsim->scan_chan_idx = 0;
1793 mutex_unlock(&hwsim->mutex);
69068036 1794
e8261171 1795 wiphy_debug(hw->wiphy, "hwsim hw_scan request\n");
69068036 1796
e8261171 1797 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
69068036
JB		 1798
1799 return 0;
1800}
1801
e8261171
JB		 1802static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
1803 struct ieee80211_vif *vif)
1804{
1805 struct mac80211_hwsim_data *hwsim = hw->priv;
1806
1807 wiphy_debug(hw->wiphy, "hwsim cancel_hw_scan\n");
1808
1809 cancel_delayed_work_sync(&hwsim->hw_scan);
1810
1811 mutex_lock(&hwsim->mutex);
1812 ieee80211_scan_completed(hwsim->hw, true);
1813 hwsim->tmp_chan = NULL;
1814 hwsim->hw_scan_request = NULL;
1815 hwsim->hw_scan_vif = NULL;
1816 mutex_unlock(&hwsim->mutex);
1817}
1818
f74cb0f7
LR		 1819static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw)
1820{
1821 struct mac80211_hwsim_data *hwsim = hw->priv;
1822
1823 mutex_lock(&hwsim->mutex);
1824
1825 if (hwsim->scanning) {
1826 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
1827 goto out;
1828 }
1829
1830 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
1831 hwsim->scanning = true;
1832
1833out:
1834 mutex_unlock(&hwsim->mutex);
1835}
1836
1837static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw)
1838{
1839 struct mac80211_hwsim_data *hwsim = hw->priv;
1840
1841 mutex_lock(&hwsim->mutex);
1842
1843 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
23ff98fc 1844 hwsim->scanning = false;
f74cb0f7
LR		 1845
1846 mutex_unlock(&hwsim->mutex);
1847}
1848
e8261171
JB		 1849static void hw_roc_done(struct work_struct *work)
1850{
1851 struct mac80211_hwsim_data *hwsim =
1852 container_of(work, struct mac80211_hwsim_data, roc_done.work);
1853
1854 mutex_lock(&hwsim->mutex);
1855 ieee80211_remain_on_channel_expired(hwsim->hw);
1856 hwsim->tmp_chan = NULL;
1857 mutex_unlock(&hwsim->mutex);
1858
1859 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC expired\n");
1860}
1861
1862static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
49884568 1863 struct ieee80211_vif *vif,
e8261171 1864 struct ieee80211_channel *chan,
d339d5ca
IP		 1865 int duration,
1866 enum ieee80211_roc_type type)
e8261171
JB		 1867{
1868 struct mac80211_hwsim_data *hwsim = hw->priv;
1869
1870 mutex_lock(&hwsim->mutex);
1871 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1872 mutex_unlock(&hwsim->mutex);
1873 return -EBUSY;
1874 }
1875
1876 hwsim->tmp_chan = chan;
1877 mutex_unlock(&hwsim->mutex);
1878
1879 wiphy_debug(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
1880 chan->center_freq, duration);
1881
1882 ieee80211_ready_on_channel(hw);
1883
1884 ieee80211_queue_delayed_work(hw, &hwsim->roc_done,
1885 msecs_to_jiffies(duration));
1886 return 0;
1887}
1888
1889static int mac80211_hwsim_croc(struct ieee80211_hw *hw)
1890{
1891 struct mac80211_hwsim_data *hwsim = hw->priv;
1892
1893 cancel_delayed_work_sync(&hwsim->roc_done);
1894
1895 mutex_lock(&hwsim->mutex);
1896 hwsim->tmp_chan = NULL;
1897 mutex_unlock(&hwsim->mutex);
1898
1899 wiphy_debug(hw->wiphy, "hwsim ROC canceled\n");
1900
1901 return 0;
1902}
1903
1904static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
1905 struct ieee80211_chanctx_conf *ctx)
1906{
1907 hwsim_set_chanctx_magic(ctx);
4bf88530
JB		 1908 wiphy_debug(hw->wiphy,
1909 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1910 ctx->def.chan->center_freq, ctx->def.width,
1911 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1912 return 0;
1913}
1914
1915static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
1916 struct ieee80211_chanctx_conf *ctx)
1917{
4bf88530
JB		 1918 wiphy_debug(hw->wiphy,
1919 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1920 ctx->def.chan->center_freq, ctx->def.width,
1921 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1922 hwsim_check_chanctx_magic(ctx);
1923 hwsim_clear_chanctx_magic(ctx);
1924}
1925
1926static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
1927 struct ieee80211_chanctx_conf *ctx,
1928 u32 changed)
1929{
1930 hwsim_check_chanctx_magic(ctx);
4bf88530
JB		 1931 wiphy_debug(hw->wiphy,
1932 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1933 ctx->def.chan->center_freq, ctx->def.width,
1934 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1935}
1936
1937static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
1938 struct ieee80211_vif *vif,
1939 struct ieee80211_chanctx_conf *ctx)
1940{
1941 hwsim_check_magic(vif);
1942 hwsim_check_chanctx_magic(ctx);
1943
1944 return 0;
1945}
1946
1947static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
1948 struct ieee80211_vif *vif,
1949 struct ieee80211_chanctx_conf *ctx)
1950{
1951 hwsim_check_magic(vif);
1952 hwsim_check_chanctx_magic(ctx);
1953}
1954
2155c3f8
BG		 1955static const char mac80211_hwsim_gstrings_stats[][ETH_GSTRING_LEN] = {
1956 "tx_pkts_nic",
1957 "tx_bytes_nic",
1958 "rx_pkts_nic",
1959 "rx_bytes_nic",
1960 "d_tx_dropped",
1961 "d_tx_failed",
1962 "d_ps_mode",
1963 "d_group",
1964 "d_tx_power",
1965};
1966
1967#define MAC80211_HWSIM_SSTATS_LEN ARRAY_SIZE(mac80211_hwsim_gstrings_stats)
1968
1969static void mac80211_hwsim_get_et_strings(struct ieee80211_hw *hw,
1970 struct ieee80211_vif *vif,
1971 u32 sset, u8 *data)
1972{
1973 if (sset == ETH_SS_STATS)
1974 memcpy(data, *mac80211_hwsim_gstrings_stats,
1975 sizeof(mac80211_hwsim_gstrings_stats));
1976}
1977
1978static int mac80211_hwsim_get_et_sset_count(struct ieee80211_hw *hw,
1979 struct ieee80211_vif *vif, int sset)
1980{
1981 if (sset == ETH_SS_STATS)
1982 return MAC80211_HWSIM_SSTATS_LEN;
1983 return 0;
1984}
1985
1986static void mac80211_hwsim_get_et_stats(struct ieee80211_hw *hw,
1987 struct ieee80211_vif *vif,
1988 struct ethtool_stats *stats, u64 *data)
1989{
1990 struct mac80211_hwsim_data *ar = hw->priv;
1991 int i = 0;
1992
1993 data[i++] = ar->tx_pkts;
1994 data[i++] = ar->tx_bytes;
1995 data[i++] = ar->rx_pkts;
1996 data[i++] = ar->rx_bytes;
1997 data[i++] = ar->tx_dropped;
1998 data[i++] = ar->tx_failed;
1999 data[i++] = ar->ps;
2000 data[i++] = ar->group;
2001 data[i++] = ar->power_level;
2002
2003 WARN_ON(i != MAC80211_HWSIM_SSTATS_LEN);
2004}
2005
38ed5048 2006static const struct ieee80211_ops mac80211_hwsim_ops = {
acc1e7a3
JM		 2007 .tx = mac80211_hwsim_tx,
2008 .start = mac80211_hwsim_start,
2009 .stop = mac80211_hwsim_stop,
2010 .add_interface = mac80211_hwsim_add_interface,
c35d0270 2011 .change_interface = mac80211_hwsim_change_interface,
acc1e7a3
JM		 2012 .remove_interface = mac80211_hwsim_remove_interface,
2013 .config = mac80211_hwsim_config,
2014 .configure_filter = mac80211_hwsim_configure_filter,
8aa21e6f 2015 .bss_info_changed = mac80211_hwsim_bss_info_changed,
1d669cbf
JB		 2016 .sta_add = mac80211_hwsim_sta_add,
2017 .sta_remove = mac80211_hwsim_sta_remove,
8aa21e6f 2018 .sta_notify = mac80211_hwsim_sta_notify,
81c06523 2019 .set_tim = mac80211_hwsim_set_tim,
1e898ff8 2020 .conf_tx = mac80211_hwsim_conf_tx,
1289723e 2021 .get_survey = mac80211_hwsim_get_survey,
aff89a9b 2022 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
8b73d13a 2023 .ampdu_action = mac80211_hwsim_ampdu_action,
f74cb0f7
LR		 2024 .sw_scan_start = mac80211_hwsim_sw_scan,
2025 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
a80f7c0b 2026 .flush = mac80211_hwsim_flush,
12ce8ba3
JC		 2027 .get_tsf = mac80211_hwsim_get_tsf,
2028 .set_tsf = mac80211_hwsim_set_tsf,
2155c3f8
BG		 2029 .get_et_sset_count = mac80211_hwsim_get_et_sset_count,
2030 .get_et_stats = mac80211_hwsim_get_et_stats,
2031 .get_et_strings = mac80211_hwsim_get_et_strings,
acc1e7a3
JM		 2032};
2033
38ed5048 2034static struct ieee80211_ops mac80211_hwsim_mchan_ops;
acc1e7a3 2035
62759361
JR		 2036struct hwsim_new_radio_params {
2037 unsigned int channels;
2038 const char *reg_alpha2;
2039 const struct ieee80211_regdomain *regd;
2040 bool reg_strict;
2041 bool p2p_device;
2042 bool use_chanctx;
2043 bool destroy_on_close;
2044 const char *hwname;
2045 bool no_vif;
2046};
2047
2048static void hwsim_mcast_config_msg(struct sk_buff *mcast_skb,
2049 struct genl_info *info)
2050{
2051 if (info)
2052 genl_notify(&hwsim_genl_family, mcast_skb,
2053 genl_info_net(info), info->snd_portid,
2054 HWSIM_MCGRP_CONFIG, info->nlhdr, GFP_KERNEL);
2055 else
2056 genlmsg_multicast(&hwsim_genl_family, mcast_skb, 0,
2057 HWSIM_MCGRP_CONFIG, GFP_KERNEL);
2058}
2059
2060static struct sk_buff *build_radio_msg(int cmd, int id,
2061 struct hwsim_new_radio_params *param)
2062{
2063 struct sk_buff *skb;
2064 void *data;
2065 int ret;
2066
2067 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
2068 if (!skb)
2069 return NULL;
2070
2071 data = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0, cmd);
2072 if (!data)
2073 goto error;
2074
2075 ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
2076 if (ret < 0)
2077 goto error;
2078
2079 if (param->channels) {
2080 ret = nla_put_u32(skb, HWSIM_ATTR_CHANNELS, param->channels);
2081 if (ret < 0)
2082 goto error;
2083 }
2084
2085 if (param->reg_alpha2) {
2086 ret = nla_put(skb, HWSIM_ATTR_REG_HINT_ALPHA2, 2,
2087 param->reg_alpha2);
2088 if (ret < 0)
2089 goto error;
2090 }
2091
2092 if (param->regd) {
2093 int i;
2094
2095 for (i = 0; hwsim_world_regdom_custom[i] != param->regd &&
2096 i < ARRAY_SIZE(hwsim_world_regdom_custom); i++)
2097 ;
2098
2099 if (i < ARRAY_SIZE(hwsim_world_regdom_custom)) {
2100 ret = nla_put_u32(skb, HWSIM_ATTR_REG_CUSTOM_REG, i);
2101 if (ret < 0)
2102 goto error;
2103 }
2104 }
2105
2106 if (param->reg_strict) {
2107 ret = nla_put_flag(skb, HWSIM_ATTR_REG_STRICT_REG);
2108 if (ret < 0)
2109 goto error;
2110 }
2111
2112 if (param->p2p_device) {
2113 ret = nla_put_flag(skb, HWSIM_ATTR_SUPPORT_P2P_DEVICE);
2114 if (ret < 0)
2115 goto error;
2116 }
2117
2118 if (param->use_chanctx) {
2119 ret = nla_put_flag(skb, HWSIM_ATTR_USE_CHANCTX);
2120 if (ret < 0)
2121 goto error;
2122 }
2123
2124 if (param->hwname) {
2125 ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME,
2126 strlen(param->hwname), param->hwname);
2127 if (ret < 0)
2128 goto error;
2129 }
2130
2131 genlmsg_end(skb, data);
2132
2133 return skb;
2134
2135error:
2136 nlmsg_free(skb);
2137 return NULL;
2138}
2139
2140static void hswim_mcast_new_radio(int id, struct genl_info *info,
2141 struct hwsim_new_radio_params *param)
2142{
2143 struct sk_buff *mcast_skb;
2144
2145 mcast_skb = build_radio_msg(HWSIM_CMD_NEW_RADIO, id, param);
2146 if (!mcast_skb)
2147 return;
2148
2149 hwsim_mcast_config_msg(mcast_skb, info);
2150}
2151
2152static int mac80211_hwsim_new_radio(struct genl_info *info,
2153 struct hwsim_new_radio_params *param)
acc1e7a3 2154{
de0421d5
JB		 2155 int err;
2156 u8 addr[ETH_ALEN];
e4afb603 2157 struct mac80211_hwsim_data *data;
de0421d5
JB		 2158 struct ieee80211_hw *hw;
2159 enum ieee80211_band band;
2160 const struct ieee80211_ops *ops = &mac80211_hwsim_ops;
2161 int idx;
0e057d73 2162
62759361 2163 if (WARN_ON(param->channels > 1 && !param->use_chanctx))
361c3e04
LC		 2164 return -EINVAL;
2165
0e057d73 2166 spin_lock_bh(&hwsim_radio_lock);
de0421d5 2167 idx = hwsim_radio_idx++;
0e057d73
JB		 2168 spin_unlock_bh(&hwsim_radio_lock);
2169
62759361 2170 if (param->use_chanctx)
de0421d5 2171 ops = &mac80211_hwsim_mchan_ops;
62759361 2172 hw = ieee80211_alloc_hw_nm(sizeof(*data), ops, param->hwname);
de0421d5
JB		 2173 if (!hw) {
2174 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw failed\n");
2175 err = -ENOMEM;
2176 goto failed;
2177 }
2178 data = hw->priv;
2179 data->hw = hw;
acc1e7a3 2180
de0421d5
JB		 2181 data->dev = device_create(hwsim_class, NULL, 0, hw, "hwsim%d", idx);
2182 if (IS_ERR(data->dev)) {
2183 printk(KERN_DEBUG
2184 "mac80211_hwsim: device_create failed (%ld)\n",
2185 PTR_ERR(data->dev));
2186 err = -ENOMEM;
2187 goto failed_drvdata;
2188 }
2189 data->dev->driver = &mac80211_hwsim_driver.driver;
2190 err = device_bind_driver(data->dev);
2191 if (err != 0) {
2192 printk(KERN_DEBUG "mac80211_hwsim: device_bind_driver failed (%d)\n",
2193 err);
2194 goto failed_hw;
acc1e7a3 2195 }
acc1e7a3 2196
de0421d5 2197 skb_queue_head_init(&data->pending);
acc1e7a3 2198
de0421d5
JB		 2199 SET_IEEE80211_DEV(hw, data->dev);
2200 memset(addr, 0, ETH_ALEN);
2201 addr[0] = 0x02;
2202 addr[3] = idx >> 8;
2203 addr[4] = idx;
2204 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
2205 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
2206 data->addresses[1].addr[0] |= 0x40;
2207 hw->wiphy->n_addresses = 2;
2208 hw->wiphy->addresses = data->addresses;
fc6971d4 2209
62759361
JR		 2210 data->channels = param->channels;
2211 data->use_chanctx = param->use_chanctx;
bc791098 2212 data->idx = idx;
62759361
JR		 2213 data->destroy_on_close = param->destroy_on_close;
2214 if (info)
2215 data->portid = info->snd_portid;
fc6971d4 2216
361c3e04 2217 if (data->use_chanctx) {
de0421d5
JB		 2218 hw->wiphy->max_scan_ssids = 255;
2219 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
2220 hw->wiphy->max_remain_on_channel_duration = 1000;
2221 /* For channels > 1 DFS is not allowed */
2222 hw->wiphy->n_iface_combinations = 1;
2223 hw->wiphy->iface_combinations = &data->if_combination;
62759361 2224 if (param->p2p_device)
8c66a3d9
JB		 2225 data->if_combination = hwsim_if_comb_p2p_dev[0];
2226 else
2227 data->if_combination = hwsim_if_comb[0];
b59ec8dd 2228 data->if_combination.num_different_channels = data->channels;
62759361 2229 } else if (param->p2p_device) {
8c66a3d9
JB		 2230 hw->wiphy->iface_combinations = hwsim_if_comb_p2p_dev;
2231 hw->wiphy->n_iface_combinations =
2232 ARRAY_SIZE(hwsim_if_comb_p2p_dev);
de0421d5
JB		 2233 } else {
2234 hw->wiphy->iface_combinations = hwsim_if_comb;
2235 hw->wiphy->n_iface_combinations = ARRAY_SIZE(hwsim_if_comb);
2236 }
acc1e7a3 2237
de0421d5
JB		 2238 INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
2239 INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
7882513b 2240
de0421d5
JB		 2241 hw->queues = 5;
2242 hw->offchannel_tx_hw_queue = 4;
2243 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2244 BIT(NL80211_IFTYPE_AP) |
2245 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2246 BIT(NL80211_IFTYPE_P2P_GO) |
2247 BIT(NL80211_IFTYPE_ADHOC) |
8c66a3d9
JB		 2248 BIT(NL80211_IFTYPE_MESH_POINT);
2249
62759361 2250 if (param->p2p_device)
8c66a3d9 2251 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_DEVICE);
fc6971d4 2252
de0421d5
JB		 2253 hw->flags = IEEE80211_HW_MFP_CAPABLE |
2254 IEEE80211_HW_SIGNAL_DBM |
de0421d5
JB		 2255 IEEE80211_HW_AMPDU_AGGREGATION |
2256 IEEE80211_HW_WANT_MONITOR_VIF |
2257 IEEE80211_HW_QUEUE_CONTROL |
0037db63
AO		 2258 IEEE80211_HW_SUPPORTS_HT_CCK_RATES |
2259 IEEE80211_HW_CHANCTX_STA_CSA;
de0421d5
JB		 2260 if (rctbl)
2261 hw->flags |= IEEE80211_HW_SUPPORTS_RC_TABLE;
fc6971d4 2262
de0421d5
JB		 2263 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2264 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
0037db63
AO		 2265 WIPHY_FLAG_AP_UAPSD |
2266 WIPHY_FLAG_HAS_CHANNEL_SWITCH;
0d8614b4
EP		 2267 hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR |
2268 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
2269 NL80211_FEATURE_STATIC_SMPS |
2270 NL80211_FEATURE_DYNAMIC_SMPS;
fc6971d4 2271
de0421d5
JB		 2272 /* ask mac80211 to reserve space for magic */
2273 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
2274 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
2275 hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
fc6971d4 2276
de0421d5
JB		 2277 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
2278 sizeof(hwsim_channels_2ghz));
2279 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
2280 sizeof(hwsim_channels_5ghz));
2281 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
7882513b 2282
de0421d5
JB		 2283 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
2284 struct ieee80211_supported_band *sband = &data->bands[band];
2285 switch (band) {
2286 case IEEE80211_BAND_2GHZ:
2287 sband->channels = data->channels_2ghz;
2288 sband->n_channels = ARRAY_SIZE(hwsim_channels_2ghz);
2289 sband->bitrates = data->rates;
2290 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
2291 break;
2292 case IEEE80211_BAND_5GHZ:
2293 sband->channels = data->channels_5ghz;
2294 sband->n_channels = ARRAY_SIZE(hwsim_channels_5ghz);
2295 sband->bitrates = data->rates + 4;
2296 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
2297 break;
2298 default:
2299 continue;
2300 }
acc1e7a3 2301
de0421d5
JB		 2302 sband->ht_cap.ht_supported = true;
2303 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
2304 IEEE80211_HT_CAP_GRN_FLD |
e49786db 2305 IEEE80211_HT_CAP_SGI_20 |
de0421d5
JB		 2306 IEEE80211_HT_CAP_SGI_40 |
2307 IEEE80211_HT_CAP_DSSSCCK40;
2308 sband->ht_cap.ampdu_factor = 0x3;
2309 sband->ht_cap.ampdu_density = 0x6;
2310 memset(&sband->ht_cap.mcs, 0,
2311 sizeof(sband->ht_cap.mcs));
2312 sband->ht_cap.mcs.rx_mask[0] = 0xff;
2313 sband->ht_cap.mcs.rx_mask[1] = 0xff;
2314 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
fc6971d4 2315
de0421d5 2316 hw->wiphy->bands[band] = sband;
fc6971d4 2317
de0421d5
JB		 2318 sband->vht_cap.vht_supported = true;
2319 sband->vht_cap.cap =
2320 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
2321 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
2322 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ |
2323 IEEE80211_VHT_CAP_RXLDPC |
2324 IEEE80211_VHT_CAP_SHORT_GI_80 |
2325 IEEE80211_VHT_CAP_SHORT_GI_160 |
2326 IEEE80211_VHT_CAP_TXSTBC |
2327 IEEE80211_VHT_CAP_RXSTBC_1 |
2328 IEEE80211_VHT_CAP_RXSTBC_2 |
2329 IEEE80211_VHT_CAP_RXSTBC_3 |
2330 IEEE80211_VHT_CAP_RXSTBC_4 |
2331 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
2332 sband->vht_cap.vht_mcs.rx_mcs_map =
2333 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_8 << 0 |
2334 IEEE80211_VHT_MCS_SUPPORT_0_8 << 2 |
2335 IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
2336 IEEE80211_VHT_MCS_SUPPORT_0_8 << 6 |
2337 IEEE80211_VHT_MCS_SUPPORT_0_8 << 8 |
2338 IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
2339 IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
2340 IEEE80211_VHT_MCS_SUPPORT_0_8 << 14);
2341 sband->vht_cap.vht_mcs.tx_mcs_map =
2342 sband->vht_cap.vht_mcs.rx_mcs_map;
2343 }
acc1e7a3 2344
de0421d5
JB		 2345 /* By default all radios belong to the first group */
2346 data->group = 1;
2347 mutex_init(&data->mutex);
fc6971d4 2348
de0421d5
JB		 2349 /* Enable frame retransmissions for lossy channels */
2350 hw->max_rates = 4;
2351 hw->max_rate_tries = 11;
fc6971d4 2352
62759361 2353 if (param->reg_strict)
26b0e411 2354 hw->wiphy->regulatory_flags |= REGULATORY_STRICT_REG;
62759361 2355 if (param->regd) {
26b0e411 2356 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
62759361 2357 wiphy_apply_custom_regulatory(hw->wiphy, param->regd);
26b0e411
JB		 2358 /* give the regulatory workqueue a chance to run */
2359 schedule_timeout_interruptible(1);
2360 }
fc6971d4 2361
62759361 2362 if (param->no_vif)
9a0cb89a
BG		 2363 hw->flags |= IEEE80211_HW_NO_AUTO_VIF;
2364
de0421d5
JB		 2365 err = ieee80211_register_hw(hw);
2366 if (err < 0) {
2367 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_register_hw failed (%d)\n",
2368 err);
2369 goto failed_hw;
2370 }
fc6971d4 2371
de0421d5 2372 wiphy_debug(hw->wiphy, "hwaddr %pM registered\n", hw->wiphy->perm_addr);
fc6971d4 2373
62759361
JR		 2374 if (param->reg_alpha2)
2375 regulatory_hint(hw->wiphy, param->reg_alpha2);
7882513b 2376
de0421d5
JB		 2377 data->debugfs = debugfs_create_dir("hwsim", hw->wiphy->debugfsdir);
2378 debugfs_create_file("ps", 0666, data->debugfs, data, &hwsim_fops_ps);
2379 debugfs_create_file("group", 0666, data->debugfs, data,
2380 &hwsim_fops_group);
361c3e04 2381 if (!data->use_chanctx)
de0421d5
JB		 2382 debugfs_create_file("dfs_simulate_radar", 0222,
2383 data->debugfs,
2384 data, &hwsim_simulate_radar);
fc6971d4 2385
de0421d5
JB		 2386 tasklet_hrtimer_init(&data->beacon_timer,
2387 mac80211_hwsim_beacon,
2388 CLOCK_MONOTONIC_RAW, HRTIMER_MODE_ABS);
fc6971d4 2389
de0421d5
JB		 2390 spin_lock_bh(&hwsim_radio_lock);
2391 list_add_tail(&data->list, &hwsim_radios);
2392 spin_unlock_bh(&hwsim_radio_lock);
fc6971d4 2393
62759361
JR		 2394 if (idx > 0)
2395 hswim_mcast_new_radio(idx, info, param);
2396
bc791098 2397 return idx;
fc6971d4 2398
de0421d5
JB		 2399failed_hw:
2400 device_unregister(data->dev);
2401failed_drvdata:
2402 ieee80211_free_hw(hw);
2403failed:
2404 return err;
fc6971d4
JM		 2405}
2406
579a05f2
JR		 2407static void hwsim_mcast_del_radio(int id, const char *hwname,
2408 struct genl_info *info)
fc6971d4 2409{
579a05f2
JR		 2410 struct sk_buff *skb;
2411 void *data;
2412 int ret;
2413
2414 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
2415 if (!skb)
2416 return;
2417
2418 data = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
2419 HWSIM_CMD_DEL_RADIO);
2420 if (!data)
2421 goto error;
2422
2423 ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
2424 if (ret < 0)
2425 goto error;
2426
2427 if (hwname) {
2428 ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME, strlen(hwname),
2429 hwname);
2430 if (ret < 0)
2431 goto error;
2432 }
2433
2434 genlmsg_end(skb, data);
2435
2436 hwsim_mcast_config_msg(skb, info);
2437
2438 return;
2439
2440error:
2441 nlmsg_free(skb);
2442}
2443
2444static void mac80211_hwsim_del_radio(struct mac80211_hwsim_data *data,
2445 const char *hwname,
2446 struct genl_info *info)
2447{
2448 hwsim_mcast_del_radio(data->idx, hwname, info);
de0421d5
JB		 2449 debugfs_remove_recursive(data->debugfs);
2450 ieee80211_unregister_hw(data->hw);
2451 device_release_driver(data->dev);
2452 device_unregister(data->dev);
2453 ieee80211_free_hw(data->hw);
fc6971d4
JM		 2454}
2455
de0421d5 2456static void mac80211_hwsim_free(void)
fc6971d4 2457{
de0421d5 2458 struct mac80211_hwsim_data *data;
fc6971d4 2459
de0421d5
JB		 2460 spin_lock_bh(&hwsim_radio_lock);
2461 while ((data = list_first_entry_or_null(&hwsim_radios,
2462 struct mac80211_hwsim_data,
2463 list))) {
2464 list_del(&data->list);
2465 spin_unlock_bh(&hwsim_radio_lock);
579a05f2 2466 mac80211_hwsim_del_radio(data, NULL, NULL);
de0421d5 2467 spin_lock_bh(&hwsim_radio_lock);
fc6971d4 2468 }
de0421d5
JB		 2469 spin_unlock_bh(&hwsim_radio_lock);
2470 class_destroy(hwsim_class);
bba05e3d
JD		 2471}
2472
de0421d5
JB		 2473static const struct net_device_ops hwsim_netdev_ops = {
2474 .ndo_start_xmit = hwsim_mon_xmit,
2475 .ndo_change_mtu = eth_change_mtu,
2476 .ndo_set_mac_address = eth_mac_addr,
2477 .ndo_validate_addr = eth_validate_addr,
2478};
73606d00 2479
de0421d5 2480static void hwsim_mon_setup(struct net_device *dev)
73606d00 2481{
de0421d5
JB		 2482 dev->netdev_ops = &hwsim_netdev_ops;
2483 dev->destructor = free_netdev;
2484 ether_setup(dev);
2485 dev->tx_queue_len = 0;
2486 dev->type = ARPHRD_IEEE80211_RADIOTAP;
2487 memset(dev->dev_addr, 0, ETH_ALEN);
2488 dev->dev_addr[0] = 0x12;
73606d00
DW		 2489}
2490
9ddd12af 2491static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(const u8 *addr)
7882513b
JL		 2492{
2493 struct mac80211_hwsim_data *data;
2494 bool _found = false;
2495
2496 spin_lock_bh(&hwsim_radio_lock);
2497 list_for_each_entry(data, &hwsim_radios, list) {
9ddd12af 2498 if (memcmp(data->addresses[1].addr, addr, ETH_ALEN) == 0) {
7882513b
JL		 2499 _found = true;
2500 break;
2501 }
2502 }
2503 spin_unlock_bh(&hwsim_radio_lock);
2504
2505 if (!_found)
2506 return NULL;
2507
2508 return data;
2509}
2510
2511static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
2512 struct genl_info *info)
2513{
2514
2515 struct ieee80211_hdr *hdr;
2516 struct mac80211_hwsim_data *data2;
2517 struct ieee80211_tx_info *txi;
2518 struct hwsim_tx_rate *tx_attempts;
d0f718c1 2519 unsigned long ret_skb_ptr;
7882513b 2520 struct sk_buff *skb, *tmp;
9ddd12af 2521 const u8 *src;
7882513b 2522 unsigned int hwsim_flags;
7882513b
JL		 2523 int i;
2524 bool found = false;
2525
85ca8fc7
JB		 2526 if (info->snd_portid != wmediumd_portid)
2527 return -EINVAL;
2528
7882513b 2529 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
9ddd12af
JB		 2530 !info->attrs[HWSIM_ATTR_FLAGS] ||
2531 !info->attrs[HWSIM_ATTR_COOKIE] ||
2532 !info->attrs[HWSIM_ATTR_TX_INFO])
7882513b
JL		 2533 goto out;
2534
9ddd12af 2535 src = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
7882513b 2536 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
d0f718c1 2537 ret_skb_ptr = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
7882513b
JL		 2538
2539 data2 = get_hwsim_data_ref_from_addr(src);
9ddd12af 2540 if (!data2)
7882513b
JL		 2541 goto out;
2542
2543 /* look for the skb matching the cookie passed back from user */
2544 skb_queue_walk_safe(&data2->pending, skb, tmp) {
d0f718c1 2545 if ((unsigned long)skb == ret_skb_ptr) {
7882513b
JL		 2546 skb_unlink(skb, &data2->pending);
2547 found = true;
2548 break;
2549 }
2550 }
2551
2552 /* not found */
2553 if (!found)
2554 goto out;
2555
2556 /* Tx info received because the frame was broadcasted on user space,
2557 so we get all the necessary info: tx attempts and skb control buff */
2558
2559 tx_attempts = (struct hwsim_tx_rate *)nla_data(
2560 info->attrs[HWSIM_ATTR_TX_INFO]);
2561
2562 /* now send back TX status */
2563 txi = IEEE80211_SKB_CB(skb);
2564
7882513b
JL		 2565 ieee80211_tx_info_clear_status(txi);
2566
2567 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
2568 txi->status.rates[i].idx = tx_attempts[i].idx;
2569 txi->status.rates[i].count = tx_attempts[i].count;
2570 /*txi->status.rates[i].flags = 0;*/
2571 }
2572
2573 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
2574
2575 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
2576 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
2577 if (skb->len >= 16) {
2578 hdr = (struct ieee80211_hdr *) skb->data;
c0e30763 2579 mac80211_hwsim_monitor_ack(data2->channel,
e8261171 2580 hdr->addr2);
7882513b 2581 }
06cf5c4c 2582 txi->flags |= IEEE80211_TX_STAT_ACK;
7882513b
JL		 2583 }
2584 ieee80211_tx_status_irqsafe(data2->hw, skb);
2585 return 0;
2586out:
2587 return -EINVAL;
2588
2589}
2590
2591static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
2592 struct genl_info *info)
2593{
e8261171 2594 struct mac80211_hwsim_data *data2;
7882513b 2595 struct ieee80211_rx_status rx_status;
9ddd12af 2596 const u8 *dst;
7882513b 2597 int frame_data_len;
9ddd12af 2598 void *frame_data;
7882513b
JL		 2599 struct sk_buff *skb = NULL;
2600
85ca8fc7
JB		 2601 if (info->snd_portid != wmediumd_portid)
2602 return -EINVAL;
2603
7882513b 2604 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
e8261171
JB		 2605 !info->attrs[HWSIM_ATTR_FRAME] ||
2606 !info->attrs[HWSIM_ATTR_RX_RATE] ||
2607 !info->attrs[HWSIM_ATTR_SIGNAL])
7882513b
JL		 2608 goto out;
2609
9ddd12af 2610 dst = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
7882513b 2611 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
9ddd12af 2612 frame_data = (void *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
7882513b
JL		 2613
2614 /* Allocate new skb here */
2615 skb = alloc_skb(frame_data_len, GFP_KERNEL);
2616 if (skb == NULL)
2617 goto err;
2618
9ddd12af 2619 if (frame_data_len > IEEE80211_MAX_DATA_LEN)
7882513b
JL		 2620 goto err;
2621
9ddd12af
JB		 2622 /* Copy the data */
2623 memcpy(skb_put(skb, frame_data_len), frame_data, frame_data_len);
7882513b 2624
9ddd12af
JB		 2625 data2 = get_hwsim_data_ref_from_addr(dst);
2626 if (!data2)
7882513b
JL		 2627 goto out;
2628
2629 /* check if radio is configured properly */
2630
e8261171 2631 if (data2->idle || !data2->started)
7882513b
JL		 2632 goto out;
2633
9ddd12af 2634 /* A frame is received from user space */
7882513b 2635 memset(&rx_status, 0, sizeof(rx_status));
4f86ed8f
BG		 2636 /* TODO: Check ATTR_FREQ if it exists, and maybe throw away off-channel
2637 * packets?
2638 */
7882513b
JL		 2639 rx_status.freq = data2->channel->center_freq;
2640 rx_status.band = data2->channel->band;
2641 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
2642 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
2643
2644 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
2155c3f8
BG		 2645 data2->rx_pkts++;
2646 data2->rx_bytes += skb->len;
7882513b
JL		 2647 ieee80211_rx_irqsafe(data2->hw, skb);
2648
2649 return 0;
2650err:
c393862f 2651 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 2652out:
2653 dev_kfree_skb(skb);
2654 return -EINVAL;
2655}
2656
2657static int hwsim_register_received_nl(struct sk_buff *skb_2,
2658 struct genl_info *info)
2659{
c5ac0854
JB		 2660 struct mac80211_hwsim_data *data;
2661 int chans = 1;
2662
2663 spin_lock_bh(&hwsim_radio_lock);
2664 list_for_each_entry(data, &hwsim_radios, list)
2665 chans = max(chans, data->channels);
2666 spin_unlock_bh(&hwsim_radio_lock);
2667
2668 /* In the future we should revise the userspace API and allow it
2669 * to set a flag that it does support multi-channel, then we can
2670 * let this pass conditionally on the flag.
2671 * For current userspace, prohibit it since it won't work right.
2672 */
2673 if (chans > 1)
2674 return -EOPNOTSUPP;
2675
85ca8fc7
JB		 2676 if (wmediumd_portid)
2677 return -EBUSY;
7882513b 2678
15e47304 2679 wmediumd_portid = info->snd_portid;
7882513b
JL		 2680
2681 printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
15e47304 2682 "switching to wmediumd mode with pid %d\n", info->snd_portid);
7882513b
JL		 2683
2684 return 0;
7882513b
JL		 2685}
2686
62759361 2687static int hwsim_new_radio_nl(struct sk_buff *msg, struct genl_info *info)
bc791098 2688{
62759361
JR		 2689 struct hwsim_new_radio_params param = { 0 };
2690
2691 param.reg_strict = info->attrs[HWSIM_ATTR_REG_STRICT_REG];
2692 param.p2p_device = info->attrs[HWSIM_ATTR_SUPPORT_P2P_DEVICE];
2693 param.channels = channels;
2694 param.destroy_on_close =
2695 info->attrs[HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE];
bc791098
JB		 2696
2697 if (info->attrs[HWSIM_ATTR_CHANNELS])
62759361 2698 param.channels = nla_get_u32(info->attrs[HWSIM_ATTR_CHANNELS]);
bc791098 2699
9a0cb89a 2700 if (info->attrs[HWSIM_ATTR_NO_VIF])
62759361 2701 param.no_vif = true;
9a0cb89a 2702
5cd8926b 2703 if (info->attrs[HWSIM_ATTR_RADIO_NAME])
62759361 2704 param.hwname = nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]);
5cd8926b 2705
361c3e04 2706 if (info->attrs[HWSIM_ATTR_USE_CHANCTX])
62759361 2707 param.use_chanctx = true;
361c3e04 2708 else
62759361 2709 param.use_chanctx = (param.channels > 1);
361c3e04 2710
26b0e411 2711 if (info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2])
62759361
JR		 2712 param.reg_alpha2 =
2713 nla_data(info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2]);
26b0e411
JB		 2714
2715 if (info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]) {
2716 u32 idx = nla_get_u32(info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]);
2717
2718 if (idx >= ARRAY_SIZE(hwsim_world_regdom_custom))
2719 return -EINVAL;
62759361 2720 param.regd = hwsim_world_regdom_custom[idx];
26b0e411
JB		 2721 }
2722
62759361 2723 return mac80211_hwsim_new_radio(info, &param);
bc791098
JB		 2724}
2725
579a05f2 2726static int hwsim_del_radio_nl(struct sk_buff *msg, struct genl_info *info)
bc791098
JB		 2727{
2728 struct mac80211_hwsim_data *data;
8cdd9e1c
BG		 2729 s64 idx = -1;
2730 const char *hwname = NULL;
bc791098 2731
8cdd9e1c
BG		 2732 if (info->attrs[HWSIM_ATTR_RADIO_ID])
2733 idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
2734 else if (info->attrs[HWSIM_ATTR_RADIO_NAME])
2735 hwname = (void *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]);
2736 else
bc791098 2737 return -EINVAL;
bc791098
JB		 2738
2739 spin_lock_bh(&hwsim_radio_lock);
2740 list_for_each_entry(data, &hwsim_radios, list) {
8cdd9e1c
BG		 2741 if (idx >= 0) {
2742 if (data->idx != idx)
2743 continue;
2744 } else {
2745 if (hwname &&
2746 strcmp(hwname, wiphy_name(data->hw->wiphy)))
2747 continue;
2748 }
2749
bc791098
JB		 2750 list_del(&data->list);
2751 spin_unlock_bh(&hwsim_radio_lock);
579a05f2 2752 mac80211_hwsim_del_radio(data, hwname, info);
bc791098
JB		 2753 return 0;
2754 }
2755 spin_unlock_bh(&hwsim_radio_lock);
2756
2757 return -ENODEV;
7882513b
JL		 2758}
2759
2760/* Generic Netlink operations array */
4534de83 2761static const struct genl_ops hwsim_ops[] = {
7882513b
JL		 2762 {
2763 .cmd = HWSIM_CMD_REGISTER,
2764 .policy = hwsim_genl_policy,
2765 .doit = hwsim_register_received_nl,
2766 .flags = GENL_ADMIN_PERM,
2767 },
2768 {
2769 .cmd = HWSIM_CMD_FRAME,
2770 .policy = hwsim_genl_policy,
2771 .doit = hwsim_cloned_frame_received_nl,
2772 },
2773 {
2774 .cmd = HWSIM_CMD_TX_INFO_FRAME,
2775 .policy = hwsim_genl_policy,
2776 .doit = hwsim_tx_info_frame_received_nl,
2777 },
bc791098 2778 {
62759361 2779 .cmd = HWSIM_CMD_NEW_RADIO,
bc791098 2780 .policy = hwsim_genl_policy,
62759361 2781 .doit = hwsim_new_radio_nl,
bc791098
JB		 2782 .flags = GENL_ADMIN_PERM,
2783 },
2784 {
579a05f2 2785 .cmd = HWSIM_CMD_DEL_RADIO,
bc791098 2786 .policy = hwsim_genl_policy,
579a05f2 2787 .doit = hwsim_del_radio_nl,
bc791098
JB		 2788 .flags = GENL_ADMIN_PERM,
2789 },
7882513b
JL		 2790};
2791
e9ed49bf
JR		 2792static void destroy_radio(struct work_struct *work)
2793{
2794 struct mac80211_hwsim_data *data =
2795 container_of(work, struct mac80211_hwsim_data, destroy_work);
2796
579a05f2 2797 mac80211_hwsim_del_radio(data, NULL, NULL);
e9ed49bf
JR		 2798}
2799
2800static void remove_user_radios(u32 portid)
2801{
2802 struct mac80211_hwsim_data *entry, *tmp;
2803
2804 spin_lock_bh(&hwsim_radio_lock);
2805 list_for_each_entry_safe(entry, tmp, &hwsim_radios, list) {
2806 if (entry->destroy_on_close && entry->portid == portid) {
2807 list_del(&entry->list);
2808 INIT_WORK(&entry->destroy_work, destroy_radio);
2809 schedule_work(&entry->destroy_work);
2810 }
2811 }
2812 spin_unlock_bh(&hwsim_radio_lock);
2813}
2814
7882513b
JL		 2815static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
2816 unsigned long state,
2817 void *_notify)
2818{
2819 struct netlink_notify *notify = _notify;
2820
2821 if (state != NETLINK_URELEASE)
2822 return NOTIFY_DONE;
2823
e9ed49bf
JR		 2824 remove_user_radios(notify->portid);
2825
15e47304 2826 if (notify->portid == wmediumd_portid) {
7882513b
JL		 2827 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
2828 " socket, switching to perfect channel medium\n");
15e47304 2829 wmediumd_portid = 0;
7882513b
JL		 2830 }
2831 return NOTIFY_DONE;
2832
2833}
2834
2835static struct notifier_block hwsim_netlink_notifier = {
2836 .notifier_call = mac80211_hwsim_netlink_notify,
2837};
2838
2839static int hwsim_init_netlink(void)
2840{
2841 int rc;
e8261171 2842
7882513b
JL		 2843 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
2844
62759361
JR		 2845 rc = genl_register_family_with_ops_groups(&hwsim_genl_family,
2846 hwsim_ops,
2847 hwsim_mcgrps);
7882513b
JL		 2848 if (rc)
2849 goto failure;
2850
2851 rc = netlink_register_notifier(&hwsim_netlink_notifier);
2852 if (rc)
2853 goto failure;
2854
2855 return 0;
2856
2857failure:
c393862f 2858 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 2859 return -EINVAL;
2860}
2861
2862static void hwsim_exit_netlink(void)
2863{
7882513b
JL		 2864 /* unregister the notifier */
2865 netlink_unregister_notifier(&hwsim_netlink_notifier);
2866 /* unregister the family */
cf7a6b2d 2867 genl_unregister_family(&hwsim_genl_family);
7882513b
JL		 2868}
2869
acc1e7a3
JM		 2870static int __init init_mac80211_hwsim(void)
2871{
f39c2bfa 2872 int i, err;
acc1e7a3 2873
bc791098 2874 if (radios < 0 || radios > 100)
acc1e7a3
JM		 2875 return -EINVAL;
2876
e8261171
JB		 2877 if (channels < 1)
2878 return -EINVAL;
2879
38ed5048
JB		 2880 mac80211_hwsim_mchan_ops = mac80211_hwsim_ops;
2881 mac80211_hwsim_mchan_ops.hw_scan = mac80211_hwsim_hw_scan;
2882 mac80211_hwsim_mchan_ops.cancel_hw_scan = mac80211_hwsim_cancel_hw_scan;
2883 mac80211_hwsim_mchan_ops.sw_scan_start = NULL;
2884 mac80211_hwsim_mchan_ops.sw_scan_complete = NULL;
2885 mac80211_hwsim_mchan_ops.remain_on_channel = mac80211_hwsim_roc;
2886 mac80211_hwsim_mchan_ops.cancel_remain_on_channel = mac80211_hwsim_croc;
2887 mac80211_hwsim_mchan_ops.add_chanctx = mac80211_hwsim_add_chanctx;
2888 mac80211_hwsim_mchan_ops.remove_chanctx = mac80211_hwsim_remove_chanctx;
2889 mac80211_hwsim_mchan_ops.change_chanctx = mac80211_hwsim_change_chanctx;
2890 mac80211_hwsim_mchan_ops.assign_vif_chanctx =
2891 mac80211_hwsim_assign_vif_chanctx;
2892 mac80211_hwsim_mchan_ops.unassign_vif_chanctx =
2893 mac80211_hwsim_unassign_vif_chanctx;
69068036 2894
0e057d73
JB		 2895 spin_lock_init(&hwsim_radio_lock);
2896 INIT_LIST_HEAD(&hwsim_radios);
acc1e7a3 2897
c07fe5ae 2898 err = platform_driver_register(&mac80211_hwsim_driver);
9ea92774
MP		 2899 if (err)
2900 return err;
2901
acc1e7a3 2902 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
9ea92774
MP		 2903 if (IS_ERR(hwsim_class)) {
2904 err = PTR_ERR(hwsim_class);
f39c2bfa 2905 goto out_unregister_driver;
9ea92774 2906 }
acc1e7a3 2907
62759361
JR		 2908 err = hwsim_init_netlink();
2909 if (err < 0)
2910 goto out_unregister_driver;
2911
0e057d73 2912 for (i = 0; i < radios; i++) {
62759361
JR		 2913 struct hwsim_new_radio_params param = { 0 };
2914
2915 param.channels = channels;
acc1e7a3 2916
4a5af9c2 2917 switch (regtest) {
4a5af9c2 2918 case HWSIM_REGTEST_DIFF_COUNTRY:
26b0e411 2919 if (i < ARRAY_SIZE(hwsim_alpha2s))
62759361 2920 param.reg_alpha2 = hwsim_alpha2s[i];
4a5af9c2
LR		 2921 break;
2922 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
2923 if (!i)
62759361 2924 param.reg_alpha2 = hwsim_alpha2s[0];
4a5af9c2 2925 break;
4a5af9c2 2926 case HWSIM_REGTEST_STRICT_ALL:
62759361 2927 param.reg_strict = true;
26b0e411 2928 case HWSIM_REGTEST_DRIVER_REG_ALL:
62759361 2929 param.reg_alpha2 = hwsim_alpha2s[0];
4a5af9c2 2930 break;
26b0e411
JB		 2931 case HWSIM_REGTEST_WORLD_ROAM:
2932 if (i == 0)
62759361 2933 param.regd = &hwsim_world_regdom_custom_01;
4a5af9c2
LR		 2934 break;
2935 case HWSIM_REGTEST_CUSTOM_WORLD:
62759361 2936 param.regd = &hwsim_world_regdom_custom_01;
26b0e411 2937 break;
4a5af9c2 2938 case HWSIM_REGTEST_CUSTOM_WORLD_2:
26b0e411 2939 if (i == 0)
62759361 2940 param.regd = &hwsim_world_regdom_custom_01;
26b0e411 2941 else if (i == 1)
62759361 2942 param.regd = &hwsim_world_regdom_custom_02;
4a5af9c2
LR		 2943 break;
2944 case HWSIM_REGTEST_STRICT_FOLLOW:
26b0e411 2945 if (i == 0) {
62759361
JR		 2946 param.reg_strict = true;
2947 param.reg_alpha2 = hwsim_alpha2s[0];
26b0e411 2948 }
4a5af9c2
LR		 2949 break;
2950 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
26b0e411 2951 if (i == 0) {
62759361
JR		 2952 param.reg_strict = true;
2953 param.reg_alpha2 = hwsim_alpha2s[0];
26b0e411 2954 } else if (i == 1) {
62759361 2955 param.reg_alpha2 = hwsim_alpha2s[1];
26b0e411 2956 }
4a5af9c2
LR		 2957 break;
2958 case HWSIM_REGTEST_ALL:
26b0e411
JB		 2959 switch (i) {
2960 case 0:
62759361 2961 param.regd = &hwsim_world_regdom_custom_01;
26b0e411
JB		 2962 break;
2963 case 1:
62759361 2964 param.regd = &hwsim_world_regdom_custom_02;
26b0e411
JB		 2965 break;
2966 case 2:
62759361 2967 param.reg_alpha2 = hwsim_alpha2s[0];
26b0e411
JB		 2968 break;
2969 case 3:
62759361 2970 param.reg_alpha2 = hwsim_alpha2s[1];
26b0e411
JB		 2971 break;
2972 case 4:
62759361
JR		 2973 param.reg_strict = true;
2974 param.reg_alpha2 = hwsim_alpha2s[2];
26b0e411
JB		 2975 break;
2976 }
4a5af9c2
LR		 2977 break;
2978 default:
2979 break;
2980 }
2981
62759361
JR		 2982 param.p2p_device = support_p2p_device;
2983 param.use_chanctx = channels > 1;
2984
2985 err = mac80211_hwsim_new_radio(NULL, &param);
bc791098 2986 if (err < 0)
f39c2bfa 2987 goto out_free_radios;
acc1e7a3
JM		 2988 }
2989
c835a677
TG		 2990 hwsim_mon = alloc_netdev(0, "hwsim%d", NET_NAME_UNKNOWN,
2991 hwsim_mon_setup);
bcdd8220
WY		 2992 if (hwsim_mon == NULL) {
2993 err = -ENOMEM;
f39c2bfa 2994 goto out_free_radios;
bcdd8220 2995 }
acc1e7a3 2996
7882513b 2997 rtnl_lock();
7882513b 2998 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
f39c2bfa
JB		 2999 if (err < 0) {
3000 rtnl_unlock();
3001 goto out_free_radios;
3002 }
7882513b
JL		 3003
3004 err = register_netdevice(hwsim_mon);
f39c2bfa
JB		 3005 if (err < 0) {
3006 rtnl_unlock();
3007 goto out_free_mon;
3008 }
7882513b
JL		 3009 rtnl_unlock();
3010
acc1e7a3
JM		 3011 return 0;
3012
f39c2bfa 3013out_free_mon:
acc1e7a3 3014 free_netdev(hwsim_mon);
f39c2bfa 3015out_free_radios:
3a33cc10 3016 mac80211_hwsim_free();
f39c2bfa 3017out_unregister_driver:
c07fe5ae 3018 platform_driver_unregister(&mac80211_hwsim_driver);
acc1e7a3
JM		 3019 return err;
3020}
f8fffc7e 3021module_init(init_mac80211_hwsim);
acc1e7a3
JM		 3022
3023static void __exit exit_mac80211_hwsim(void)
3024{
0e057d73 3025 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
acc1e7a3 3026
7882513b
JL		 3027 hwsim_exit_netlink();
3028
acc1e7a3 3029 mac80211_hwsim_free();
5d416351 3030 unregister_netdev(hwsim_mon);
c07fe5ae 3031 platform_driver_unregister(&mac80211_hwsim_driver);
acc1e7a3 3032}
acc1e7a3 3033module_exit(exit_mac80211_hwsim);
Linux kernel - Deliverables
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