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mac80211: allow drivers to support NL80211_SCAN_FLAG_RANDOM_ADDR
[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
1f7bba79
JB		 987static void mac80211_hwsim_add_vendor_rtap(struct sk_buff *skb)
988{
989 /*
990 * To enable this code, #define the HWSIM_RADIOTAP_OUI,
991 * e.g. like this:
992 * #define HWSIM_RADIOTAP_OUI "\x02\x00\x00"
993 * (but you should use a valid OUI, not that)
994 *
995 * If anyone wants to 'donate' a radiotap OUI/subns code
996 * please send a patch removing this #ifdef and changing
997 * the values accordingly.
998 */
999#ifdef HWSIM_RADIOTAP_OUI
1000 struct ieee80211_vendor_radiotap *rtap;
1001
1002 /*
1003 * Note that this code requires the headroom in the SKB
1004 * that was allocated earlier.
1005 */
1006 rtap = (void *)skb_push(skb, sizeof(*rtap) + 8 + 4);
1007 rtap->oui[0] = HWSIM_RADIOTAP_OUI[0];
1008 rtap->oui[1] = HWSIM_RADIOTAP_OUI[1];
1009 rtap->oui[2] = HWSIM_RADIOTAP_OUI[2];
1010 rtap->subns = 127;
1011
1012 /*
1013 * Radiotap vendor namespaces can (and should) also be
1014 * split into fields by using the standard radiotap
1015 * presence bitmap mechanism. Use just BIT(0) here for
1016 * the presence bitmap.
1017 */
1018 rtap->present = BIT(0);
1019 /* We have 8 bytes of (dummy) data */
1020 rtap->len = 8;
1021 /* For testing, also require it to be aligned */
1022 rtap->align = 8;
1023 /* And also test that padding works, 4 bytes */
1024 rtap->pad = 4;
1025 /* push the data */
1026 memcpy(rtap->data, "ABCDEFGH", 8);
1027 /* make sure to clear padding, mac80211 doesn't */
1028 memset(rtap->data + 8, 0, 4);
1029
1030 IEEE80211_SKB_RXCB(skb)->flag |= RX_FLAG_RADIOTAP_VENDOR_DATA;
1031#endif
1032}
1033
7882513b 1034static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
e8261171
JB		 1035 struct sk_buff *skb,
1036 struct ieee80211_channel *chan)
acc1e7a3 1037{
0e057d73
JB		 1038 struct mac80211_hwsim_data *data = hw->priv, *data2;
1039 bool ack = false;
e36cfdc9 1040 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
acc1e7a3 1041 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
e36cfdc9 1042 struct ieee80211_rx_status rx_status;
b66851c3 1043 u64 now;
acc1e7a3
JM		 1044
1045 memset(&rx_status, 0, sizeof(rx_status));
f4bda337 1046 rx_status.flag |= RX_FLAG_MACTIME_START;
e8261171
JB		 1047 rx_status.freq = chan->center_freq;
1048 rx_status.band = chan->band;
dad6330d
KB		 1049 if (info->control.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) {
1050 rx_status.rate_idx =
1051 ieee80211_rate_get_vht_mcs(&info->control.rates[0]);
1052 rx_status.vht_nss =
1053 ieee80211_rate_get_vht_nss(&info->control.rates[0]);
1054 rx_status.flag |= RX_FLAG_VHT;
1055 } else {
1056 rx_status.rate_idx = info->control.rates[0].idx;
1057 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
1058 rx_status.flag |= RX_FLAG_HT;
1059 }
281ed297
JM		 1060 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
1061 rx_status.flag |= RX_FLAG_40MHZ;
1062 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
1063 rx_status.flag |= RX_FLAG_SHORT_GI;
4b14c96d 1064 /* TODO: simulate real signal strength (and optional packet loss) */
bdd7bd16 1065 rx_status.signal = data->power_level - 50;
acc1e7a3 1066
fc6971d4
JM		 1067 if (data->ps != PS_DISABLED)
1068 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1069
90e3012e
JB		 1070 /* release the skb's source info */
1071 skb_orphan(skb);
c0acf38e 1072 skb_dst_drop(skb);
90e3012e
JB		 1073 skb->mark = 0;
1074 secpath_reset(skb);
1075 nf_reset(skb);
1076
b66851c3
TP		 1077 /*
1078 * Get absolute mactime here so all HWs RX at the "same time", and
1079 * absolute TX time for beacon mactime so the timestamp matches.
1080 * Giving beacons a different mactime than non-beacons looks messy, but
1081 * it helps the Toffset be exact and a ~10us mactime discrepancy
1082 * probably doesn't really matter.
1083 */
1084 if (ieee80211_is_beacon(hdr->frame_control) ||
1085 ieee80211_is_probe_resp(hdr->frame_control))
1086 now = data->abs_bcn_ts;
1087 else
1088 now = mac80211_hwsim_get_tsf_raw();
1089
acc1e7a3 1090 /* Copy skb to all enabled radios that are on the current frequency */
0e057d73
JB		 1091 spin_lock(&hwsim_radio_lock);
1092 list_for_each_entry(data2, &hwsim_radios, list) {
acc1e7a3 1093 struct sk_buff *nskb;
e8261171
JB		 1094 struct tx_iter_data tx_iter_data = {
1095 .receive = false,
1096 .channel = chan,
1097 };
acc1e7a3 1098
0e057d73 1099 if (data == data2)
acc1e7a3 1100 continue;
0e057d73 1101
e8261171
JB		 1102 if (!data2->started || (data2->idle && !data2->tmp_chan) ||
1103 !hwsim_ps_rx_ok(data2, skb))
acc1e7a3
JM		 1104 continue;
1105
e8261171
JB		 1106 if (!(data->group & data2->group))
1107 continue;
1108
1109 if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
1110 !hwsim_chans_compat(chan, data2->channel)) {
1111 ieee80211_iterate_active_interfaces_atomic(
8b2c9824
JB		 1112 data2->hw, IEEE80211_IFACE_ITER_NORMAL,
1113 mac80211_hwsim_tx_iter, &tx_iter_data);
e8261171
JB		 1114 if (!tx_iter_data.receive)
1115 continue;
1116 }
1117
90b9e446
JB		 1118 /*
1119 * reserve some space for our vendor and the normal
1120 * radiotap header, since we're copying anyway
1121 */
a357d7f9
JB		 1122 if (skb->len < PAGE_SIZE && paged_rx) {
1123 struct page *page = alloc_page(GFP_ATOMIC);
1124
1125 if (!page)
1126 continue;
1127
1128 nskb = dev_alloc_skb(128);
1129 if (!nskb) {
1130 __free_page(page);
1131 continue;
1132 }
1133
1134 memcpy(page_address(page), skb->data, skb->len);
1135 skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
1136 } else {
1137 nskb = skb_copy(skb, GFP_ATOMIC);
1138 if (!nskb)
1139 continue;
1140 }
acc1e7a3 1141
265dc7f0 1142 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
0e057d73 1143 ack = true;
f483ad25 1144
b66851c3 1145 rx_status.mactime = now + data2->tsf_offset;
90b9e446 1146
f1d58c25 1147 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
1f7bba79
JB		 1148
1149 mac80211_hwsim_add_vendor_rtap(nskb);
1150
2155c3f8
BG		 1151 data2->rx_pkts++;
1152 data2->rx_bytes += nskb->len;
f1d58c25 1153 ieee80211_rx_irqsafe(data2->hw, nskb);
acc1e7a3 1154 }
0e057d73 1155 spin_unlock(&hwsim_radio_lock);
acc1e7a3 1156
e36cfdc9
JM		 1157 return ack;
1158}
1159
36323f81
TH		 1160static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
1161 struct ieee80211_tx_control *control,
1162 struct sk_buff *skb)
e36cfdc9 1163{
e8261171
JB		 1164 struct mac80211_hwsim_data *data = hw->priv;
1165 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1166 struct ieee80211_chanctx_conf *chanctx_conf;
1167 struct ieee80211_channel *channel;
0e057d73 1168 bool ack;
15e47304 1169 u32 _portid;
e36cfdc9 1170
e8261171 1171 if (WARN_ON(skb->len < 10)) {
e36cfdc9 1172 /* Should not happen; just a sanity check for addr1 use */
fe0f3cd2 1173 ieee80211_free_txskb(hw, skb);
7bb45683 1174 return;
e36cfdc9
JM		 1175 }
1176
361c3e04 1177 if (!data->use_chanctx) {
e8261171
JB		 1178 channel = data->channel;
1179 } else if (txi->hw_queue == 4) {
1180 channel = data->tmp_chan;
1181 } else {
1182 chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf);
1183 if (chanctx_conf)
4bf88530 1184 channel = chanctx_conf->def.chan;
e8261171
JB		 1185 else
1186 channel = NULL;
1187 }
1188
1189 if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
fe0f3cd2 1190 ieee80211_free_txskb(hw, skb);
e8261171
JB		 1191 return;
1192 }
1193
1194 if (data->idle && !data->tmp_chan) {
1195 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
fe0f3cd2 1196 ieee80211_free_txskb(hw, skb);
e8261171
JB		 1197 return;
1198 }
1199
1200 if (txi->control.vif)
1201 hwsim_check_magic(txi->control.vif);
1202 if (control->sta)
1203 hwsim_check_sta_magic(control->sta);
1204
81338410 1205 if (hw->flags & IEEE80211_HW_SUPPORTS_RC_TABLE)
1eb32179
KB		 1206 ieee80211_get_tx_rates(txi->control.vif, control->sta, skb,
1207 txi->control.rates,
1208 ARRAY_SIZE(txi->control.rates));
e8261171 1209
1eb32179 1210 txi->rate_driver_data[0] = channel;
e8261171
JB		 1211 mac80211_hwsim_monitor_rx(hw, skb, channel);
1212
7882513b 1213 /* wmediumd mode check */
15e47304 1214 _portid = ACCESS_ONCE(wmediumd_portid);
7882513b 1215
15e47304
EB		 1216 if (_portid)
1217 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
7882513b
JL		 1218
1219 /* NO wmediumd detected, perfect medium simulation */
2155c3f8
BG		 1220 data->tx_pkts++;
1221 data->tx_bytes += skb->len;
e8261171 1222 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
7882513b 1223
6c085227
JM		 1224 if (ack && skb->len >= 16) {
1225 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
e8261171 1226 mac80211_hwsim_monitor_ack(channel, hdr->addr2);
6c085227 1227 }
e36cfdc9 1228
e6a9854b 1229 ieee80211_tx_info_clear_status(txi);
2a4ffa4c
JC		 1230
1231 /* frame was transmitted at most favorable rate at first attempt */
1232 txi->control.rates[0].count = 1;
1233 txi->control.rates[1].idx = -1;
1234
e6a9854b
JB		 1235 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
1236 txi->flags |= IEEE80211_TX_STAT_ACK;
acc1e7a3 1237 ieee80211_tx_status_irqsafe(hw, skb);
acc1e7a3
JM		 1238}
1239
1240
1241static int mac80211_hwsim_start(struct ieee80211_hw *hw)
1242{
1243 struct mac80211_hwsim_data *data = hw->priv;
c96c31e4 1244 wiphy_debug(hw->wiphy, "%s\n", __func__);
3db1cd5c 1245 data->started = true;
acc1e7a3
JM		 1246 return 0;
1247}
1248
1249
1250static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
1251{
1252 struct mac80211_hwsim_data *data = hw->priv;
3db1cd5c 1253 data->started = false;
01e59e46 1254 tasklet_hrtimer_cancel(&data->beacon_timer);
c96c31e4 1255 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 1256}
1257
1258
1259static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
1ed32e4f 1260 struct ieee80211_vif *vif)
acc1e7a3 1261{
c96c31e4 1262 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 1263 __func__, ieee80211_vif_type_p2p(vif),
1264 vif->addr);
1ed32e4f 1265 hwsim_set_magic(vif);
e8261171
JB		 1266
1267 vif->cab_queue = 0;
1268 vif->hw_queue[IEEE80211_AC_VO] = 0;
1269 vif->hw_queue[IEEE80211_AC_VI] = 1;
1270 vif->hw_queue[IEEE80211_AC_BE] = 2;
1271 vif->hw_queue[IEEE80211_AC_BK] = 3;
1272
acc1e7a3
JM		 1273 return 0;
1274}
1275
1276
c35d0270
JB		 1277static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
1278 struct ieee80211_vif *vif,
2ca27bcf
JB		 1279 enum nl80211_iftype newtype,
1280 bool newp2p)
c35d0270 1281{
2ca27bcf 1282 newtype = ieee80211_iftype_p2p(newtype, newp2p);
c35d0270
JB		 1283 wiphy_debug(hw->wiphy,
1284 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
2ca27bcf
JB		 1285 __func__, ieee80211_vif_type_p2p(vif),
1286 newtype, vif->addr);
c35d0270
JB		 1287 hwsim_check_magic(vif);
1288
3eb92f6a
JB		 1289 /*
1290 * interface may change from non-AP to AP in
1291 * which case this needs to be set up again
1292 */
1293 vif->cab_queue = 0;
1294
c35d0270
JB		 1295 return 0;
1296}
1297
acc1e7a3 1298static void mac80211_hwsim_remove_interface(
1ed32e4f 1299 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
acc1e7a3 1300{
c96c31e4 1301 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 1302 __func__, ieee80211_vif_type_p2p(vif),
1303 vif->addr);
1ed32e4f
JB		 1304 hwsim_check_magic(vif);
1305 hwsim_clear_magic(vif);
acc1e7a3
JM		 1306}
1307
e8261171
JB		 1308static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
1309 struct sk_buff *skb,
1310 struct ieee80211_channel *chan)
1311{
1312 u32 _pid = ACCESS_ONCE(wmediumd_portid);
1313
81338410 1314 if (hw->flags & IEEE80211_HW_SUPPORTS_RC_TABLE) {
1eb32179
KB		 1315 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1316 ieee80211_get_tx_rates(txi->control.vif, NULL, skb,
1317 txi->control.rates,
1318 ARRAY_SIZE(txi->control.rates));
1319 }
1320
e8261171
JB		 1321 mac80211_hwsim_monitor_rx(hw, skb, chan);
1322
1323 if (_pid)
1324 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
1325
1326 mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
1327 dev_kfree_skb(skb);
1328}
acc1e7a3
JM		 1329
1330static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
1331 struct ieee80211_vif *vif)
1332{
b66851c3
TP		 1333 struct mac80211_hwsim_data *data = arg;
1334 struct ieee80211_hw *hw = data->hw;
1335 struct ieee80211_tx_info *info;
1336 struct ieee80211_rate *txrate;
1337 struct ieee80211_mgmt *mgmt;
acc1e7a3 1338 struct sk_buff *skb;
acc1e7a3 1339
8aa21e6f
JB		 1340 hwsim_check_magic(vif);
1341
55b39619 1342 if (vif->type != NL80211_IFTYPE_AP &&
2b2d7795
JB		 1343 vif->type != NL80211_IFTYPE_MESH_POINT &&
1344 vif->type != NL80211_IFTYPE_ADHOC)
acc1e7a3
JM		 1345 return;
1346
1347 skb = ieee80211_beacon_get(hw, vif);
1348 if (skb == NULL)
1349 return;
b66851c3 1350 info = IEEE80211_SKB_CB(skb);
81338410 1351 if (hw->flags & IEEE80211_HW_SUPPORTS_RC_TABLE)
1eb32179
KB		 1352 ieee80211_get_tx_rates(vif, NULL, skb,
1353 info->control.rates,
1354 ARRAY_SIZE(info->control.rates));
1355
b66851c3
TP		 1356 txrate = ieee80211_get_tx_rate(hw, info);
1357
1358 mgmt = (struct ieee80211_mgmt *) skb->data;
1359 /* fake header transmission time */
1360 data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
1361 mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
1362 data->tsf_offset +
1363 24 * 8 * 10 / txrate->bitrate);
7882513b 1364
e8261171 1365 mac80211_hwsim_tx_frame(hw, skb,
4bf88530 1366 rcu_dereference(vif->chanctx_conf)->def.chan);
0037db63
AO		 1367
1368 if (vif->csa_active && ieee80211_csa_is_complete(vif))
1369 ieee80211_csa_finish(vif);
acc1e7a3
JM		 1370}
1371
01e59e46
TP		 1372static enum hrtimer_restart
1373mac80211_hwsim_beacon(struct hrtimer *timer)
acc1e7a3 1374{
01e59e46
TP		 1375 struct mac80211_hwsim_data *data =
1376 container_of(timer, struct mac80211_hwsim_data,
1377 beacon_timer.timer);
1378 struct ieee80211_hw *hw = data->hw;
1379 u64 bcn_int = data->beacon_int;
1380 ktime_t next_bcn;
acc1e7a3 1381
4c4c671a 1382 if (!data->started)
01e59e46 1383 goto out;
acc1e7a3 1384
f248f105 1385 ieee80211_iterate_active_interfaces_atomic(
8b2c9824 1386 hw, IEEE80211_IFACE_ITER_NORMAL,
b66851c3 1387 mac80211_hwsim_beacon_tx, data);
acc1e7a3 1388
c51f8783
TP		 1389 /* beacon at new TBTT + beacon interval */
1390 if (data->bcn_delta) {
1391 bcn_int -= data->bcn_delta;
1392 data->bcn_delta = 0;
1393 }
1394
01e59e46
TP		 1395 next_bcn = ktime_add(hrtimer_get_expires(timer),
1396 ns_to_ktime(bcn_int * 1000));
1397 tasklet_hrtimer_start(&data->beacon_timer, next_bcn, HRTIMER_MODE_ABS);
1398out:
1399 return HRTIMER_NORESTART;
acc1e7a3
JM		 1400}
1401
675a0b04
KB		 1402static const char * const hwsim_chanwidths[] = {
1403 [NL80211_CHAN_WIDTH_20_NOHT] = "noht",
1404 [NL80211_CHAN_WIDTH_20] = "ht20",
1405 [NL80211_CHAN_WIDTH_40] = "ht40",
1406 [NL80211_CHAN_WIDTH_80] = "vht80",
1407 [NL80211_CHAN_WIDTH_80P80] = "vht80p80",
1408 [NL80211_CHAN_WIDTH_160] = "vht160",
0aaffa9b 1409};
acc1e7a3 1410
e8975581 1411static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
acc1e7a3
JM		 1412{
1413 struct mac80211_hwsim_data *data = hw->priv;
e8975581 1414 struct ieee80211_conf *conf = &hw->conf;
0f78231b
JB		 1415 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
1416 [IEEE80211_SMPS_AUTOMATIC] = "auto",
1417 [IEEE80211_SMPS_OFF] = "off",
1418 [IEEE80211_SMPS_STATIC] = "static",
1419 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
1420 };
1421
675a0b04
KB		 1422 if (conf->chandef.chan)
1423 wiphy_debug(hw->wiphy,
1424 "%s (freq=%d(%d - %d)/%s idle=%d ps=%d smps=%s)\n",
1425 __func__,
1426 conf->chandef.chan->center_freq,
1427 conf->chandef.center_freq1,
1428 conf->chandef.center_freq2,
1429 hwsim_chanwidths[conf->chandef.width],
1430 !!(conf->flags & IEEE80211_CONF_IDLE),
1431 !!(conf->flags & IEEE80211_CONF_PS),
1432 smps_modes[conf->smps_mode]);
1433 else
1434 wiphy_debug(hw->wiphy,
1435 "%s (freq=0 idle=%d ps=%d smps=%s)\n",
1436 __func__,
1437 !!(conf->flags & IEEE80211_CONF_IDLE),
1438 !!(conf->flags & IEEE80211_CONF_PS),
1439 smps_modes[conf->smps_mode]);
acc1e7a3 1440
70541839
JM		 1441 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1442
675a0b04 1443 data->channel = conf->chandef.chan;
e8261171 1444
361c3e04 1445 WARN_ON(data->channel && data->use_chanctx);
e8261171 1446
bdd7bd16 1447 data->power_level = conf->power_level;
4c4c671a 1448 if (!data->started || !data->beacon_int)
01e59e46
TP		 1449 tasklet_hrtimer_cancel(&data->beacon_timer);
1450 else if (!hrtimer_is_queued(&data->beacon_timer.timer)) {
c51f8783
TP		 1451 u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
1452 u32 bcn_int = data->beacon_int;
1453 u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1454
01e59e46 1455 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1456 ns_to_ktime(until_tbtt * 1000),
01e59e46
TP		 1457 HRTIMER_MODE_REL);
1458 }
acc1e7a3
JM		 1459
1460 return 0;
1461}
1462
1463
1464static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
1465 unsigned int changed_flags,
3ac64bee 1466 unsigned int *total_flags,u64 multicast)
acc1e7a3
JM		 1467{
1468 struct mac80211_hwsim_data *data = hw->priv;
1469
c96c31e4 1470 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 1471
1472 data->rx_filter = 0;
1473 if (*total_flags & FIF_PROMISC_IN_BSS)
1474 data->rx_filter |= FIF_PROMISC_IN_BSS;
1475 if (*total_flags & FIF_ALLMULTI)
1476 data->rx_filter |= FIF_ALLMULTI;
1477
1478 *total_flags = data->rx_filter;
1479}
1480
0bb861e6
JM		 1481static void mac80211_hwsim_bcn_en_iter(void *data, u8 *mac,
1482 struct ieee80211_vif *vif)
1483{
1484 unsigned int *count = data;
1485 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1486
1487 if (vp->bcn_en)
1488 (*count)++;
1489}
1490
8aa21e6f
JB		 1491static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
1492 struct ieee80211_vif *vif,
1493 struct ieee80211_bss_conf *info,
1494 u32 changed)
1495{
fc6971d4 1496 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
57c4d7b4 1497 struct mac80211_hwsim_data *data = hw->priv;
fc6971d4 1498
8aa21e6f 1499 hwsim_check_magic(vif);
fe63bfa3 1500
0bb861e6
JM		 1501 wiphy_debug(hw->wiphy, "%s(changed=0x%x vif->addr=%pM)\n",
1502 __func__, changed, vif->addr);
fe63bfa3 1503
2d0ddec5 1504 if (changed & BSS_CHANGED_BSSID) {
c96c31e4
JP		 1505 wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
1506 __func__, info->bssid);
2d0ddec5
JB		 1507 memcpy(vp->bssid, info->bssid, ETH_ALEN);
1508 }
1509
fe63bfa3 1510 if (changed & BSS_CHANGED_ASSOC) {
c96c31e4
JP		 1511 wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
1512 info->assoc, info->aid);
fc6971d4
JM		 1513 vp->assoc = info->assoc;
1514 vp->aid = info->aid;
fe63bfa3
JM		 1515 }
1516
57c4d7b4 1517 if (changed & BSS_CHANGED_BEACON_INT) {
c96c31e4 1518 wiphy_debug(hw->wiphy, " BCNINT: %d\n", info->beacon_int);
01e59e46
TP		 1519 data->beacon_int = info->beacon_int * 1024;
1520 }
1521
1522 if (changed & BSS_CHANGED_BEACON_ENABLED) {
1523 wiphy_debug(hw->wiphy, " BCN EN: %d\n", info->enable_beacon);
0bb861e6 1524 vp->bcn_en = info->enable_beacon;
01e59e46
TP		 1525 if (data->started &&
1526 !hrtimer_is_queued(&data->beacon_timer.timer) &&
1527 info->enable_beacon) {
c51f8783
TP		 1528 u64 tsf, until_tbtt;
1529 u32 bcn_int;
01e59e46
TP		 1530 if (WARN_ON(!data->beacon_int))
1531 data->beacon_int = 1000 * 1024;
c51f8783
TP		 1532 tsf = mac80211_hwsim_get_tsf(hw, vif);
1533 bcn_int = data->beacon_int;
1534 until_tbtt = bcn_int - do_div(tsf, bcn_int);
01e59e46 1535 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1536 ns_to_ktime(until_tbtt * 1000),
01e59e46 1537 HRTIMER_MODE_REL);
0bb861e6
JM		 1538 } else if (!info->enable_beacon) {
1539 unsigned int count = 0;
cdb1b805 1540 ieee80211_iterate_active_interfaces_atomic(
0bb861e6
JM		 1541 data->hw, IEEE80211_IFACE_ITER_NORMAL,
1542 mac80211_hwsim_bcn_en_iter, &count);
1543 wiphy_debug(hw->wiphy, " beaconing vifs remaining: %u",
1544 count);
1545 if (count == 0)
1546 tasklet_hrtimer_cancel(&data->beacon_timer);
1547 }
57c4d7b4
JB		 1548 }
1549
fe63bfa3 1550 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
c96c31e4
JP		 1551 wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
1552 info->use_cts_prot);
fe63bfa3
JM		 1553 }
1554
1555 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
c96c31e4
JP		 1556 wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
1557 info->use_short_preamble);
fe63bfa3
JM		 1558 }
1559
1560 if (changed & BSS_CHANGED_ERP_SLOT) {
c96c31e4 1561 wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
fe63bfa3
JM		 1562 }
1563
1564 if (changed & BSS_CHANGED_HT) {
4bf88530
JB		 1565 wiphy_debug(hw->wiphy, " HT: op_mode=0x%x\n",
1566 info->ht_operation_mode);
fe63bfa3
JM		 1567 }
1568
1569 if (changed & BSS_CHANGED_BASIC_RATES) {
c96c31e4
JP		 1570 wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
1571 (unsigned long long) info->basic_rates);
fe63bfa3 1572 }
cbc668a7
JB		 1573
1574 if (changed & BSS_CHANGED_TXPOWER)
1575 wiphy_debug(hw->wiphy, " TX Power: %d dBm\n", info->txpower);
8aa21e6f
JB		 1576}
1577
1d669cbf
JB		 1578static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
1579 struct ieee80211_vif *vif,
1580 struct ieee80211_sta *sta)
1581{
1582 hwsim_check_magic(vif);
1583 hwsim_set_sta_magic(sta);
1584
1585 return 0;
1586}
1587
1588static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
1589 struct ieee80211_vif *vif,
1590 struct ieee80211_sta *sta)
1591{
1592 hwsim_check_magic(vif);
1593 hwsim_clear_sta_magic(sta);
1594
1595 return 0;
1596}
1597
8aa21e6f
JB		 1598static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
1599 struct ieee80211_vif *vif,
17741cdc
JB		 1600 enum sta_notify_cmd cmd,
1601 struct ieee80211_sta *sta)
8aa21e6f
JB		 1602{
1603 hwsim_check_magic(vif);
1d669cbf 1604
81c06523 1605 switch (cmd) {
89fad578
CL		 1606 case STA_NOTIFY_SLEEP:
1607 case STA_NOTIFY_AWAKE:
1608 /* TODO: make good use of these flags */
1609 break;
1d669cbf
JB		 1610 default:
1611 WARN(1, "Invalid sta notify: %d\n", cmd);
1612 break;
81c06523
JB		 1613 }
1614}
1615
1616static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
1617 struct ieee80211_sta *sta,
1618 bool set)
1619{
1620 hwsim_check_sta_magic(sta);
1621 return 0;
8aa21e6f 1622}
acc1e7a3 1623
1e898ff8 1624static int mac80211_hwsim_conf_tx(
8a3a3c85
EP		 1625 struct ieee80211_hw *hw,
1626 struct ieee80211_vif *vif, u16 queue,
1e898ff8
JM		 1627 const struct ieee80211_tx_queue_params *params)
1628{
c96c31e4
JP		 1629 wiphy_debug(hw->wiphy,
1630 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1631 __func__, queue,
1632 params->txop, params->cw_min,
1633 params->cw_max, params->aifs);
1e898ff8
JM		 1634 return 0;
1635}
1636
1289723e
HS		 1637static int mac80211_hwsim_get_survey(
1638 struct ieee80211_hw *hw, int idx,
1639 struct survey_info *survey)
1640{
1641 struct ieee80211_conf *conf = &hw->conf;
1642
c96c31e4 1643 wiphy_debug(hw->wiphy, "%s (idx=%d)\n", __func__, idx);
1289723e
HS		 1644
1645 if (idx != 0)
1646 return -ENOENT;
1647
1648 /* Current channel */
675a0b04 1649 survey->channel = conf->chandef.chan;
1289723e
HS		 1650
1651 /*
1652 * Magically conjured noise level --- this is only ok for simulated hardware.
1653 *
1654 * A real driver which cannot determine the real channel noise MUST NOT
1655 * report any noise, especially not a magically conjured one :-)
1656 */
1657 survey->filled = SURVEY_INFO_NOISE_DBM;
1658 survey->noise = -92;
1659
1660 return 0;
1661}
1662
aff89a9b
JB		 1663#ifdef CONFIG_NL80211_TESTMODE
1664/*
1665 * This section contains example code for using netlink
1666 * attributes with the testmode command in nl80211.
1667 */
1668
1669/* These enums need to be kept in sync with userspace */
1670enum hwsim_testmode_attr {
1671 __HWSIM_TM_ATTR_INVALID = 0,
1672 HWSIM_TM_ATTR_CMD = 1,
1673 HWSIM_TM_ATTR_PS = 2,
1674
1675 /* keep last */
1676 __HWSIM_TM_ATTR_AFTER_LAST,
1677 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1678};
1679
1680enum hwsim_testmode_cmd {
1681 HWSIM_TM_CMD_SET_PS = 0,
1682 HWSIM_TM_CMD_GET_PS = 1,
4d6d0ae2
JB		 1683 HWSIM_TM_CMD_STOP_QUEUES = 2,
1684 HWSIM_TM_CMD_WAKE_QUEUES = 3,
aff89a9b
JB		 1685};
1686
1687static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1688 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1689 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1690};
1691
5bc38193 1692static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
52981cd7 1693 struct ieee80211_vif *vif,
5bc38193 1694 void *data, int len)
aff89a9b
JB		 1695{
1696 struct mac80211_hwsim_data *hwsim = hw->priv;
1697 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1698 struct sk_buff *skb;
1699 int err, ps;
1700
1701 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
1702 hwsim_testmode_policy);
1703 if (err)
1704 return err;
1705
1706 if (!tb[HWSIM_TM_ATTR_CMD])
1707 return -EINVAL;
1708
1709 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1710 case HWSIM_TM_CMD_SET_PS:
1711 if (!tb[HWSIM_TM_ATTR_PS])
1712 return -EINVAL;
1713 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1714 return hwsim_fops_ps_write(hwsim, ps);
1715 case HWSIM_TM_CMD_GET_PS:
1716 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1717 nla_total_size(sizeof(u32)));
1718 if (!skb)
1719 return -ENOMEM;
633c9389
DM		 1720 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
1721 goto nla_put_failure;
aff89a9b 1722 return cfg80211_testmode_reply(skb);
4d6d0ae2
JB		 1723 case HWSIM_TM_CMD_STOP_QUEUES:
1724 ieee80211_stop_queues(hw);
1725 return 0;
1726 case HWSIM_TM_CMD_WAKE_QUEUES:
1727 ieee80211_wake_queues(hw);
1728 return 0;
aff89a9b
JB		 1729 default:
1730 return -EOPNOTSUPP;
1731 }
1732
1733 nla_put_failure:
1734 kfree_skb(skb);
1735 return -ENOBUFS;
1736}
1737#endif
1738
8b73d13a
JB		 1739static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1740 struct ieee80211_vif *vif,
1741 enum ieee80211_ampdu_mlme_action action,
0b01f030
JB		 1742 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
1743 u8 buf_size)
8b73d13a
JB		 1744{
1745 switch (action) {
1746 case IEEE80211_AMPDU_TX_START:
1747 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1748 break;
18b559d5
JB		 1749 case IEEE80211_AMPDU_TX_STOP_CONT:
1750 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1751 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
8b73d13a
JB		 1752 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1753 break;
1754 case IEEE80211_AMPDU_TX_OPERATIONAL:
1755 break;
1756 case IEEE80211_AMPDU_RX_START:
1757 case IEEE80211_AMPDU_RX_STOP:
1758 break;
1759 default:
1760 return -EOPNOTSUPP;
1761 }
1762
1763 return 0;
1764}
1765
77be2c54
EG		 1766static void mac80211_hwsim_flush(struct ieee80211_hw *hw,
1767 struct ieee80211_vif *vif,
1768 u32 queues, bool drop)
a80f7c0b 1769{
7882513b 1770 /* Not implemented, queues only on kernel side */
a80f7c0b
JB		 1771}
1772
e8261171 1773static void hw_scan_work(struct work_struct *work)
69068036 1774{
e8261171
JB		 1775 struct mac80211_hwsim_data *hwsim =
1776 container_of(work, struct mac80211_hwsim_data, hw_scan.work);
1777 struct cfg80211_scan_request *req = hwsim->hw_scan_request;
1778 int dwell, i;
69068036 1779
e8261171
JB		 1780 mutex_lock(&hwsim->mutex);
1781 if (hwsim->scan_chan_idx >= req->n_channels) {
1782 wiphy_debug(hwsim->hw->wiphy, "hw scan complete\n");
1783 ieee80211_scan_completed(hwsim->hw, false);
1784 hwsim->hw_scan_request = NULL;
1785 hwsim->hw_scan_vif = NULL;
1786 hwsim->tmp_chan = NULL;
1787 mutex_unlock(&hwsim->mutex);
1788 return;
1789 }
1790
1791 wiphy_debug(hwsim->hw->wiphy, "hw scan %d MHz\n",
1792 req->channels[hwsim->scan_chan_idx]->center_freq);
1793
1794 hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
8fe02e16 1795 if (hwsim->tmp_chan->flags & IEEE80211_CHAN_NO_IR ||
e8261171
JB		 1796 !req->n_ssids) {
1797 dwell = 120;
1798 } else {
1799 dwell = 30;
1800 /* send probes */
1801 for (i = 0; i < req->n_ssids; i++) {
1802 struct sk_buff *probe;
1803
1804 probe = ieee80211_probereq_get(hwsim->hw,
a344d677 1805 hwsim->hw_scan_vif->addr,
e8261171
JB		 1806 req->ssids[i].ssid,
1807 req->ssids[i].ssid_len,
b9a9ada1 1808 req->ie_len);
e8261171
JB		 1809 if (!probe)
1810 continue;
b9a9ada1
JB		 1811
1812 if (req->ie_len)
1813 memcpy(skb_put(probe, req->ie_len), req->ie,
1814 req->ie_len);
1815
e8261171
JB		 1816 local_bh_disable();
1817 mac80211_hwsim_tx_frame(hwsim->hw, probe,
1818 hwsim->tmp_chan);
1819 local_bh_enable();
1820 }
1821 }
1822 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
1823 msecs_to_jiffies(dwell));
1824 hwsim->scan_chan_idx++;
1825 mutex_unlock(&hwsim->mutex);
69068036
JB		 1826}
1827
1828static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
a060bbfe 1829 struct ieee80211_vif *vif,
c56ef672 1830 struct ieee80211_scan_request *hw_req)
69068036 1831{
e8261171 1832 struct mac80211_hwsim_data *hwsim = hw->priv;
c56ef672 1833 struct cfg80211_scan_request *req = &hw_req->req;
69068036 1834
e8261171
JB		 1835 mutex_lock(&hwsim->mutex);
1836 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1837 mutex_unlock(&hwsim->mutex);
1838 return -EBUSY;
1839 }
1840 hwsim->hw_scan_request = req;
1841 hwsim->hw_scan_vif = vif;
1842 hwsim->scan_chan_idx = 0;
1843 mutex_unlock(&hwsim->mutex);
69068036 1844
e8261171 1845 wiphy_debug(hw->wiphy, "hwsim hw_scan request\n");
69068036 1846
e8261171 1847 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
69068036
JB		 1848
1849 return 0;
1850}
1851
e8261171
JB		 1852static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
1853 struct ieee80211_vif *vif)
1854{
1855 struct mac80211_hwsim_data *hwsim = hw->priv;
1856
1857 wiphy_debug(hw->wiphy, "hwsim cancel_hw_scan\n");
1858
1859 cancel_delayed_work_sync(&hwsim->hw_scan);
1860
1861 mutex_lock(&hwsim->mutex);
1862 ieee80211_scan_completed(hwsim->hw, true);
1863 hwsim->tmp_chan = NULL;
1864 hwsim->hw_scan_request = NULL;
1865 hwsim->hw_scan_vif = NULL;
1866 mutex_unlock(&hwsim->mutex);
1867}
1868
a344d677
JB		 1869static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw,
1870 struct ieee80211_vif *vif,
1871 const u8 *mac_addr)
f74cb0f7
LR		 1872{
1873 struct mac80211_hwsim_data *hwsim = hw->priv;
1874
1875 mutex_lock(&hwsim->mutex);
1876
1877 if (hwsim->scanning) {
1878 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
1879 goto out;
1880 }
1881
1882 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
1883 hwsim->scanning = true;
1884
1885out:
1886 mutex_unlock(&hwsim->mutex);
1887}
1888
a344d677
JB		 1889static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw,
1890 struct ieee80211_vif *vif)
f74cb0f7
LR		 1891{
1892 struct mac80211_hwsim_data *hwsim = hw->priv;
1893
1894 mutex_lock(&hwsim->mutex);
1895
1896 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
23ff98fc 1897 hwsim->scanning = false;
f74cb0f7
LR		 1898
1899 mutex_unlock(&hwsim->mutex);
1900}
1901
e8261171
JB		 1902static void hw_roc_done(struct work_struct *work)
1903{
1904 struct mac80211_hwsim_data *hwsim =
1905 container_of(work, struct mac80211_hwsim_data, roc_done.work);
1906
1907 mutex_lock(&hwsim->mutex);
1908 ieee80211_remain_on_channel_expired(hwsim->hw);
1909 hwsim->tmp_chan = NULL;
1910 mutex_unlock(&hwsim->mutex);
1911
1912 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC expired\n");
1913}
1914
1915static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
49884568 1916 struct ieee80211_vif *vif,
e8261171 1917 struct ieee80211_channel *chan,
d339d5ca
IP		 1918 int duration,
1919 enum ieee80211_roc_type type)
e8261171
JB		 1920{
1921 struct mac80211_hwsim_data *hwsim = hw->priv;
1922
1923 mutex_lock(&hwsim->mutex);
1924 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1925 mutex_unlock(&hwsim->mutex);
1926 return -EBUSY;
1927 }
1928
1929 hwsim->tmp_chan = chan;
1930 mutex_unlock(&hwsim->mutex);
1931
1932 wiphy_debug(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
1933 chan->center_freq, duration);
1934
1935 ieee80211_ready_on_channel(hw);
1936
1937 ieee80211_queue_delayed_work(hw, &hwsim->roc_done,
1938 msecs_to_jiffies(duration));
1939 return 0;
1940}
1941
1942static int mac80211_hwsim_croc(struct ieee80211_hw *hw)
1943{
1944 struct mac80211_hwsim_data *hwsim = hw->priv;
1945
1946 cancel_delayed_work_sync(&hwsim->roc_done);
1947
1948 mutex_lock(&hwsim->mutex);
1949 hwsim->tmp_chan = NULL;
1950 mutex_unlock(&hwsim->mutex);
1951
1952 wiphy_debug(hw->wiphy, "hwsim ROC canceled\n");
1953
1954 return 0;
1955}
1956
1957static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
1958 struct ieee80211_chanctx_conf *ctx)
1959{
1960 hwsim_set_chanctx_magic(ctx);
4bf88530
JB		 1961 wiphy_debug(hw->wiphy,
1962 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1963 ctx->def.chan->center_freq, ctx->def.width,
1964 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1965 return 0;
1966}
1967
1968static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
1969 struct ieee80211_chanctx_conf *ctx)
1970{
4bf88530
JB		 1971 wiphy_debug(hw->wiphy,
1972 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1973 ctx->def.chan->center_freq, ctx->def.width,
1974 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1975 hwsim_check_chanctx_magic(ctx);
1976 hwsim_clear_chanctx_magic(ctx);
1977}
1978
1979static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
1980 struct ieee80211_chanctx_conf *ctx,
1981 u32 changed)
1982{
1983 hwsim_check_chanctx_magic(ctx);
4bf88530
JB		 1984 wiphy_debug(hw->wiphy,
1985 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1986 ctx->def.chan->center_freq, ctx->def.width,
1987 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1988}
1989
1990static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
1991 struct ieee80211_vif *vif,
1992 struct ieee80211_chanctx_conf *ctx)
1993{
1994 hwsim_check_magic(vif);
1995 hwsim_check_chanctx_magic(ctx);
1996
1997 return 0;
1998}
1999
2000static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
2001 struct ieee80211_vif *vif,
2002 struct ieee80211_chanctx_conf *ctx)
2003{
2004 hwsim_check_magic(vif);
2005 hwsim_check_chanctx_magic(ctx);
2006}
2007
2155c3f8
BG		 2008static const char mac80211_hwsim_gstrings_stats[][ETH_GSTRING_LEN] = {
2009 "tx_pkts_nic",
2010 "tx_bytes_nic",
2011 "rx_pkts_nic",
2012 "rx_bytes_nic",
2013 "d_tx_dropped",
2014 "d_tx_failed",
2015 "d_ps_mode",
2016 "d_group",
2017 "d_tx_power",
2018};
2019
2020#define MAC80211_HWSIM_SSTATS_LEN ARRAY_SIZE(mac80211_hwsim_gstrings_stats)
2021
2022static void mac80211_hwsim_get_et_strings(struct ieee80211_hw *hw,
2023 struct ieee80211_vif *vif,
2024 u32 sset, u8 *data)
2025{
2026 if (sset == ETH_SS_STATS)
2027 memcpy(data, *mac80211_hwsim_gstrings_stats,
2028 sizeof(mac80211_hwsim_gstrings_stats));
2029}
2030
2031static int mac80211_hwsim_get_et_sset_count(struct ieee80211_hw *hw,
2032 struct ieee80211_vif *vif, int sset)
2033{
2034 if (sset == ETH_SS_STATS)
2035 return MAC80211_HWSIM_SSTATS_LEN;
2036 return 0;
2037}
2038
2039static void mac80211_hwsim_get_et_stats(struct ieee80211_hw *hw,
2040 struct ieee80211_vif *vif,
2041 struct ethtool_stats *stats, u64 *data)
2042{
2043 struct mac80211_hwsim_data *ar = hw->priv;
2044 int i = 0;
2045
2046 data[i++] = ar->tx_pkts;
2047 data[i++] = ar->tx_bytes;
2048 data[i++] = ar->rx_pkts;
2049 data[i++] = ar->rx_bytes;
2050 data[i++] = ar->tx_dropped;
2051 data[i++] = ar->tx_failed;
2052 data[i++] = ar->ps;
2053 data[i++] = ar->group;
2054 data[i++] = ar->power_level;
2055
2056 WARN_ON(i != MAC80211_HWSIM_SSTATS_LEN);
2057}
2058
38ed5048 2059static const struct ieee80211_ops mac80211_hwsim_ops = {
acc1e7a3
JM		 2060 .tx = mac80211_hwsim_tx,
2061 .start = mac80211_hwsim_start,
2062 .stop = mac80211_hwsim_stop,
2063 .add_interface = mac80211_hwsim_add_interface,
c35d0270 2064 .change_interface = mac80211_hwsim_change_interface,
acc1e7a3
JM		 2065 .remove_interface = mac80211_hwsim_remove_interface,
2066 .config = mac80211_hwsim_config,
2067 .configure_filter = mac80211_hwsim_configure_filter,
8aa21e6f 2068 .bss_info_changed = mac80211_hwsim_bss_info_changed,
1d669cbf
JB		 2069 .sta_add = mac80211_hwsim_sta_add,
2070 .sta_remove = mac80211_hwsim_sta_remove,
8aa21e6f 2071 .sta_notify = mac80211_hwsim_sta_notify,
81c06523 2072 .set_tim = mac80211_hwsim_set_tim,
1e898ff8 2073 .conf_tx = mac80211_hwsim_conf_tx,
1289723e 2074 .get_survey = mac80211_hwsim_get_survey,
aff89a9b 2075 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
8b73d13a 2076 .ampdu_action = mac80211_hwsim_ampdu_action,
f74cb0f7
LR		 2077 .sw_scan_start = mac80211_hwsim_sw_scan,
2078 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
a80f7c0b 2079 .flush = mac80211_hwsim_flush,
12ce8ba3
JC		 2080 .get_tsf = mac80211_hwsim_get_tsf,
2081 .set_tsf = mac80211_hwsim_set_tsf,
2155c3f8
BG		 2082 .get_et_sset_count = mac80211_hwsim_get_et_sset_count,
2083 .get_et_stats = mac80211_hwsim_get_et_stats,
2084 .get_et_strings = mac80211_hwsim_get_et_strings,
acc1e7a3
JM		 2085};
2086
38ed5048 2087static struct ieee80211_ops mac80211_hwsim_mchan_ops;
acc1e7a3 2088
62759361
JR		 2089struct hwsim_new_radio_params {
2090 unsigned int channels;
2091 const char *reg_alpha2;
2092 const struct ieee80211_regdomain *regd;
2093 bool reg_strict;
2094 bool p2p_device;
2095 bool use_chanctx;
2096 bool destroy_on_close;
2097 const char *hwname;
2098 bool no_vif;
2099};
2100
2101static void hwsim_mcast_config_msg(struct sk_buff *mcast_skb,
2102 struct genl_info *info)
2103{
2104 if (info)
2105 genl_notify(&hwsim_genl_family, mcast_skb,
2106 genl_info_net(info), info->snd_portid,
2107 HWSIM_MCGRP_CONFIG, info->nlhdr, GFP_KERNEL);
2108 else
2109 genlmsg_multicast(&hwsim_genl_family, mcast_skb, 0,
2110 HWSIM_MCGRP_CONFIG, GFP_KERNEL);
2111}
2112
2113static struct sk_buff *build_radio_msg(int cmd, int id,
2114 struct hwsim_new_radio_params *param)
2115{
2116 struct sk_buff *skb;
2117 void *data;
2118 int ret;
2119
2120 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
2121 if (!skb)
2122 return NULL;
2123
2124 data = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0, cmd);
2125 if (!data)
2126 goto error;
2127
2128 ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
2129 if (ret < 0)
2130 goto error;
2131
2132 if (param->channels) {
2133 ret = nla_put_u32(skb, HWSIM_ATTR_CHANNELS, param->channels);
2134 if (ret < 0)
2135 goto error;
2136 }
2137
2138 if (param->reg_alpha2) {
2139 ret = nla_put(skb, HWSIM_ATTR_REG_HINT_ALPHA2, 2,
2140 param->reg_alpha2);
2141 if (ret < 0)
2142 goto error;
2143 }
2144
2145 if (param->regd) {
2146 int i;
2147
2148 for (i = 0; hwsim_world_regdom_custom[i] != param->regd &&
2149 i < ARRAY_SIZE(hwsim_world_regdom_custom); i++)
2150 ;
2151
2152 if (i < ARRAY_SIZE(hwsim_world_regdom_custom)) {
2153 ret = nla_put_u32(skb, HWSIM_ATTR_REG_CUSTOM_REG, i);
2154 if (ret < 0)
2155 goto error;
2156 }
2157 }
2158
2159 if (param->reg_strict) {
2160 ret = nla_put_flag(skb, HWSIM_ATTR_REG_STRICT_REG);
2161 if (ret < 0)
2162 goto error;
2163 }
2164
2165 if (param->p2p_device) {
2166 ret = nla_put_flag(skb, HWSIM_ATTR_SUPPORT_P2P_DEVICE);
2167 if (ret < 0)
2168 goto error;
2169 }
2170
2171 if (param->use_chanctx) {
2172 ret = nla_put_flag(skb, HWSIM_ATTR_USE_CHANCTX);
2173 if (ret < 0)
2174 goto error;
2175 }
2176
2177 if (param->hwname) {
2178 ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME,
2179 strlen(param->hwname), param->hwname);
2180 if (ret < 0)
2181 goto error;
2182 }
2183
2184 genlmsg_end(skb, data);
2185
2186 return skb;
2187
2188error:
2189 nlmsg_free(skb);
2190 return NULL;
2191}
2192
2193static void hswim_mcast_new_radio(int id, struct genl_info *info,
2194 struct hwsim_new_radio_params *param)
2195{
2196 struct sk_buff *mcast_skb;
2197
2198 mcast_skb = build_radio_msg(HWSIM_CMD_NEW_RADIO, id, param);
2199 if (!mcast_skb)
2200 return;
2201
2202 hwsim_mcast_config_msg(mcast_skb, info);
2203}
2204
2205static int mac80211_hwsim_new_radio(struct genl_info *info,
2206 struct hwsim_new_radio_params *param)
acc1e7a3 2207{
de0421d5
JB		 2208 int err;
2209 u8 addr[ETH_ALEN];
e4afb603 2210 struct mac80211_hwsim_data *data;
de0421d5
JB		 2211 struct ieee80211_hw *hw;
2212 enum ieee80211_band band;
2213 const struct ieee80211_ops *ops = &mac80211_hwsim_ops;
2214 int idx;
0e057d73 2215
62759361 2216 if (WARN_ON(param->channels > 1 && !param->use_chanctx))
361c3e04
LC		 2217 return -EINVAL;
2218
0e057d73 2219 spin_lock_bh(&hwsim_radio_lock);
de0421d5 2220 idx = hwsim_radio_idx++;
0e057d73
JB		 2221 spin_unlock_bh(&hwsim_radio_lock);
2222
62759361 2223 if (param->use_chanctx)
de0421d5 2224 ops = &mac80211_hwsim_mchan_ops;
62759361 2225 hw = ieee80211_alloc_hw_nm(sizeof(*data), ops, param->hwname);
de0421d5
JB		 2226 if (!hw) {
2227 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw failed\n");
2228 err = -ENOMEM;
2229 goto failed;
2230 }
2231 data = hw->priv;
2232 data->hw = hw;
acc1e7a3 2233
de0421d5
JB		 2234 data->dev = device_create(hwsim_class, NULL, 0, hw, "hwsim%d", idx);
2235 if (IS_ERR(data->dev)) {
2236 printk(KERN_DEBUG
2237 "mac80211_hwsim: device_create failed (%ld)\n",
2238 PTR_ERR(data->dev));
2239 err = -ENOMEM;
2240 goto failed_drvdata;
2241 }
2242 data->dev->driver = &mac80211_hwsim_driver.driver;
2243 err = device_bind_driver(data->dev);
2244 if (err != 0) {
2245 printk(KERN_DEBUG "mac80211_hwsim: device_bind_driver failed (%d)\n",
2246 err);
2247 goto failed_hw;
acc1e7a3 2248 }
acc1e7a3 2249
de0421d5 2250 skb_queue_head_init(&data->pending);
acc1e7a3 2251
de0421d5
JB		 2252 SET_IEEE80211_DEV(hw, data->dev);
2253 memset(addr, 0, ETH_ALEN);
2254 addr[0] = 0x02;
2255 addr[3] = idx >> 8;
2256 addr[4] = idx;
2257 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
2258 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
2259 data->addresses[1].addr[0] |= 0x40;
2260 hw->wiphy->n_addresses = 2;
2261 hw->wiphy->addresses = data->addresses;
fc6971d4 2262
62759361
JR		 2263 data->channels = param->channels;
2264 data->use_chanctx = param->use_chanctx;
bc791098 2265 data->idx = idx;
62759361
JR		 2266 data->destroy_on_close = param->destroy_on_close;
2267 if (info)
2268 data->portid = info->snd_portid;
fc6971d4 2269
361c3e04 2270 if (data->use_chanctx) {
de0421d5
JB		 2271 hw->wiphy->max_scan_ssids = 255;
2272 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
2273 hw->wiphy->max_remain_on_channel_duration = 1000;
2274 /* For channels > 1 DFS is not allowed */
2275 hw->wiphy->n_iface_combinations = 1;
2276 hw->wiphy->iface_combinations = &data->if_combination;
62759361 2277 if (param->p2p_device)
8c66a3d9
JB		 2278 data->if_combination = hwsim_if_comb_p2p_dev[0];
2279 else
2280 data->if_combination = hwsim_if_comb[0];
b59ec8dd 2281 data->if_combination.num_different_channels = data->channels;
62759361 2282 } else if (param->p2p_device) {
8c66a3d9
JB		 2283 hw->wiphy->iface_combinations = hwsim_if_comb_p2p_dev;
2284 hw->wiphy->n_iface_combinations =
2285 ARRAY_SIZE(hwsim_if_comb_p2p_dev);
de0421d5
JB		 2286 } else {
2287 hw->wiphy->iface_combinations = hwsim_if_comb;
2288 hw->wiphy->n_iface_combinations = ARRAY_SIZE(hwsim_if_comb);
2289 }
acc1e7a3 2290
de0421d5
JB		 2291 INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
2292 INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
7882513b 2293
de0421d5
JB		 2294 hw->queues = 5;
2295 hw->offchannel_tx_hw_queue = 4;
2296 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2297 BIT(NL80211_IFTYPE_AP) |
2298 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2299 BIT(NL80211_IFTYPE_P2P_GO) |
2300 BIT(NL80211_IFTYPE_ADHOC) |
8c66a3d9
JB		 2301 BIT(NL80211_IFTYPE_MESH_POINT);
2302
62759361 2303 if (param->p2p_device)
8c66a3d9 2304 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_DEVICE);
fc6971d4 2305
de0421d5
JB		 2306 hw->flags = IEEE80211_HW_MFP_CAPABLE |
2307 IEEE80211_HW_SIGNAL_DBM |
de0421d5
JB		 2308 IEEE80211_HW_AMPDU_AGGREGATION |
2309 IEEE80211_HW_WANT_MONITOR_VIF |
2310 IEEE80211_HW_QUEUE_CONTROL |
0037db63
AO		 2311 IEEE80211_HW_SUPPORTS_HT_CCK_RATES |
2312 IEEE80211_HW_CHANCTX_STA_CSA;
de0421d5
JB		 2313 if (rctbl)
2314 hw->flags |= IEEE80211_HW_SUPPORTS_RC_TABLE;
fc6971d4 2315
de0421d5
JB		 2316 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2317 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
0037db63
AO		 2318 WIPHY_FLAG_AP_UAPSD |
2319 WIPHY_FLAG_HAS_CHANNEL_SWITCH;
0d8614b4
EP		 2320 hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR |
2321 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
2322 NL80211_FEATURE_STATIC_SMPS |
2323 NL80211_FEATURE_DYNAMIC_SMPS;
fc6971d4 2324
de0421d5
JB		 2325 /* ask mac80211 to reserve space for magic */
2326 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
2327 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
2328 hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
fc6971d4 2329
de0421d5
JB		 2330 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
2331 sizeof(hwsim_channels_2ghz));
2332 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
2333 sizeof(hwsim_channels_5ghz));
2334 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
7882513b 2335
de0421d5
JB		 2336 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
2337 struct ieee80211_supported_band *sband = &data->bands[band];
2338 switch (band) {
2339 case IEEE80211_BAND_2GHZ:
2340 sband->channels = data->channels_2ghz;
2341 sband->n_channels = ARRAY_SIZE(hwsim_channels_2ghz);
2342 sband->bitrates = data->rates;
2343 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
2344 break;
2345 case IEEE80211_BAND_5GHZ:
2346 sband->channels = data->channels_5ghz;
2347 sband->n_channels = ARRAY_SIZE(hwsim_channels_5ghz);
2348 sband->bitrates = data->rates + 4;
2349 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
2350 break;
2351 default:
2352 continue;
2353 }
acc1e7a3 2354
de0421d5
JB		 2355 sband->ht_cap.ht_supported = true;
2356 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
2357 IEEE80211_HT_CAP_GRN_FLD |
e49786db 2358 IEEE80211_HT_CAP_SGI_20 |
de0421d5
JB		 2359 IEEE80211_HT_CAP_SGI_40 |
2360 IEEE80211_HT_CAP_DSSSCCK40;
2361 sband->ht_cap.ampdu_factor = 0x3;
2362 sband->ht_cap.ampdu_density = 0x6;
2363 memset(&sband->ht_cap.mcs, 0,
2364 sizeof(sband->ht_cap.mcs));
2365 sband->ht_cap.mcs.rx_mask[0] = 0xff;
2366 sband->ht_cap.mcs.rx_mask[1] = 0xff;
2367 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
fc6971d4 2368
de0421d5 2369 hw->wiphy->bands[band] = sband;
fc6971d4 2370
de0421d5
JB		 2371 sband->vht_cap.vht_supported = true;
2372 sband->vht_cap.cap =
2373 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
2374 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
2375 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ |
2376 IEEE80211_VHT_CAP_RXLDPC |
2377 IEEE80211_VHT_CAP_SHORT_GI_80 |
2378 IEEE80211_VHT_CAP_SHORT_GI_160 |
2379 IEEE80211_VHT_CAP_TXSTBC |
2380 IEEE80211_VHT_CAP_RXSTBC_1 |
2381 IEEE80211_VHT_CAP_RXSTBC_2 |
2382 IEEE80211_VHT_CAP_RXSTBC_3 |
2383 IEEE80211_VHT_CAP_RXSTBC_4 |
2384 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
2385 sband->vht_cap.vht_mcs.rx_mcs_map =
2386 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_8 << 0 |
2387 IEEE80211_VHT_MCS_SUPPORT_0_8 << 2 |
2388 IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
2389 IEEE80211_VHT_MCS_SUPPORT_0_8 << 6 |
2390 IEEE80211_VHT_MCS_SUPPORT_0_8 << 8 |
2391 IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
2392 IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
2393 IEEE80211_VHT_MCS_SUPPORT_0_8 << 14);
2394 sband->vht_cap.vht_mcs.tx_mcs_map =
2395 sband->vht_cap.vht_mcs.rx_mcs_map;
2396 }
acc1e7a3 2397
de0421d5
JB		 2398 /* By default all radios belong to the first group */
2399 data->group = 1;
2400 mutex_init(&data->mutex);
fc6971d4 2401
de0421d5
JB		 2402 /* Enable frame retransmissions for lossy channels */
2403 hw->max_rates = 4;
2404 hw->max_rate_tries = 11;
fc6971d4 2405
62759361 2406 if (param->reg_strict)
26b0e411 2407 hw->wiphy->regulatory_flags |= REGULATORY_STRICT_REG;
62759361 2408 if (param->regd) {
26b0e411 2409 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
62759361 2410 wiphy_apply_custom_regulatory(hw->wiphy, param->regd);
26b0e411
JB		 2411 /* give the regulatory workqueue a chance to run */
2412 schedule_timeout_interruptible(1);
2413 }
fc6971d4 2414
62759361 2415 if (param->no_vif)
9a0cb89a
BG		 2416 hw->flags |= IEEE80211_HW_NO_AUTO_VIF;
2417
de0421d5
JB		 2418 err = ieee80211_register_hw(hw);
2419 if (err < 0) {
2420 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_register_hw failed (%d)\n",
2421 err);
2422 goto failed_hw;
2423 }
fc6971d4 2424
de0421d5 2425 wiphy_debug(hw->wiphy, "hwaddr %pM registered\n", hw->wiphy->perm_addr);
fc6971d4 2426
62759361
JR		 2427 if (param->reg_alpha2)
2428 regulatory_hint(hw->wiphy, param->reg_alpha2);
7882513b 2429
de0421d5
JB		 2430 data->debugfs = debugfs_create_dir("hwsim", hw->wiphy->debugfsdir);
2431 debugfs_create_file("ps", 0666, data->debugfs, data, &hwsim_fops_ps);
2432 debugfs_create_file("group", 0666, data->debugfs, data,
2433 &hwsim_fops_group);
361c3e04 2434 if (!data->use_chanctx)
de0421d5
JB		 2435 debugfs_create_file("dfs_simulate_radar", 0222,
2436 data->debugfs,
2437 data, &hwsim_simulate_radar);
fc6971d4 2438
de0421d5
JB		 2439 tasklet_hrtimer_init(&data->beacon_timer,
2440 mac80211_hwsim_beacon,
2441 CLOCK_MONOTONIC_RAW, HRTIMER_MODE_ABS);
fc6971d4 2442
de0421d5
JB		 2443 spin_lock_bh(&hwsim_radio_lock);
2444 list_add_tail(&data->list, &hwsim_radios);
2445 spin_unlock_bh(&hwsim_radio_lock);
fc6971d4 2446
62759361
JR		 2447 if (idx > 0)
2448 hswim_mcast_new_radio(idx, info, param);
2449
bc791098 2450 return idx;
fc6971d4 2451
de0421d5
JB		 2452failed_hw:
2453 device_unregister(data->dev);
2454failed_drvdata:
2455 ieee80211_free_hw(hw);
2456failed:
2457 return err;
fc6971d4
JM		 2458}
2459
579a05f2
JR		 2460static void hwsim_mcast_del_radio(int id, const char *hwname,
2461 struct genl_info *info)
fc6971d4 2462{
579a05f2
JR		 2463 struct sk_buff *skb;
2464 void *data;
2465 int ret;
2466
2467 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
2468 if (!skb)
2469 return;
2470
2471 data = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
2472 HWSIM_CMD_DEL_RADIO);
2473 if (!data)
2474 goto error;
2475
2476 ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
2477 if (ret < 0)
2478 goto error;
2479
2480 if (hwname) {
2481 ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME, strlen(hwname),
2482 hwname);
2483 if (ret < 0)
2484 goto error;
2485 }
2486
2487 genlmsg_end(skb, data);
2488
2489 hwsim_mcast_config_msg(skb, info);
2490
2491 return;
2492
2493error:
2494 nlmsg_free(skb);
2495}
2496
2497static void mac80211_hwsim_del_radio(struct mac80211_hwsim_data *data,
2498 const char *hwname,
2499 struct genl_info *info)
2500{
2501 hwsim_mcast_del_radio(data->idx, hwname, info);
de0421d5
JB		 2502 debugfs_remove_recursive(data->debugfs);
2503 ieee80211_unregister_hw(data->hw);
2504 device_release_driver(data->dev);
2505 device_unregister(data->dev);
2506 ieee80211_free_hw(data->hw);
fc6971d4
JM		 2507}
2508
de0421d5 2509static void mac80211_hwsim_free(void)
fc6971d4 2510{
de0421d5 2511 struct mac80211_hwsim_data *data;
fc6971d4 2512
de0421d5
JB		 2513 spin_lock_bh(&hwsim_radio_lock);
2514 while ((data = list_first_entry_or_null(&hwsim_radios,
2515 struct mac80211_hwsim_data,
2516 list))) {
2517 list_del(&data->list);
2518 spin_unlock_bh(&hwsim_radio_lock);
579a05f2 2519 mac80211_hwsim_del_radio(data, NULL, NULL);
de0421d5 2520 spin_lock_bh(&hwsim_radio_lock);
fc6971d4 2521 }
de0421d5
JB		 2522 spin_unlock_bh(&hwsim_radio_lock);
2523 class_destroy(hwsim_class);
bba05e3d
JD		 2524}
2525
de0421d5
JB		 2526static const struct net_device_ops hwsim_netdev_ops = {
2527 .ndo_start_xmit = hwsim_mon_xmit,
2528 .ndo_change_mtu = eth_change_mtu,
2529 .ndo_set_mac_address = eth_mac_addr,
2530 .ndo_validate_addr = eth_validate_addr,
2531};
73606d00 2532
de0421d5 2533static void hwsim_mon_setup(struct net_device *dev)
73606d00 2534{
de0421d5
JB		 2535 dev->netdev_ops = &hwsim_netdev_ops;
2536 dev->destructor = free_netdev;
2537 ether_setup(dev);
2538 dev->tx_queue_len = 0;
2539 dev->type = ARPHRD_IEEE80211_RADIOTAP;
2540 memset(dev->dev_addr, 0, ETH_ALEN);
2541 dev->dev_addr[0] = 0x12;
73606d00
DW		 2542}
2543
9ddd12af 2544static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(const u8 *addr)
7882513b
JL		 2545{
2546 struct mac80211_hwsim_data *data;
2547 bool _found = false;
2548
2549 spin_lock_bh(&hwsim_radio_lock);
2550 list_for_each_entry(data, &hwsim_radios, list) {
9ddd12af 2551 if (memcmp(data->addresses[1].addr, addr, ETH_ALEN) == 0) {
7882513b
JL		 2552 _found = true;
2553 break;
2554 }
2555 }
2556 spin_unlock_bh(&hwsim_radio_lock);
2557
2558 if (!_found)
2559 return NULL;
2560
2561 return data;
2562}
2563
2564static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
2565 struct genl_info *info)
2566{
2567
2568 struct ieee80211_hdr *hdr;
2569 struct mac80211_hwsim_data *data2;
2570 struct ieee80211_tx_info *txi;
2571 struct hwsim_tx_rate *tx_attempts;
d0f718c1 2572 unsigned long ret_skb_ptr;
7882513b 2573 struct sk_buff *skb, *tmp;
9ddd12af 2574 const u8 *src;
7882513b 2575 unsigned int hwsim_flags;
7882513b
JL		 2576 int i;
2577 bool found = false;
2578
85ca8fc7
JB		 2579 if (info->snd_portid != wmediumd_portid)
2580 return -EINVAL;
2581
7882513b 2582 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
9ddd12af
JB		 2583 !info->attrs[HWSIM_ATTR_FLAGS] ||
2584 !info->attrs[HWSIM_ATTR_COOKIE] ||
2585 !info->attrs[HWSIM_ATTR_TX_INFO])
7882513b
JL		 2586 goto out;
2587
9ddd12af 2588 src = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
7882513b 2589 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
d0f718c1 2590 ret_skb_ptr = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
7882513b
JL		 2591
2592 data2 = get_hwsim_data_ref_from_addr(src);
9ddd12af 2593 if (!data2)
7882513b
JL		 2594 goto out;
2595
2596 /* look for the skb matching the cookie passed back from user */
2597 skb_queue_walk_safe(&data2->pending, skb, tmp) {
d0f718c1 2598 if ((unsigned long)skb == ret_skb_ptr) {
7882513b
JL		 2599 skb_unlink(skb, &data2->pending);
2600 found = true;
2601 break;
2602 }
2603 }
2604
2605 /* not found */
2606 if (!found)
2607 goto out;
2608
2609 /* Tx info received because the frame was broadcasted on user space,
2610 so we get all the necessary info: tx attempts and skb control buff */
2611
2612 tx_attempts = (struct hwsim_tx_rate *)nla_data(
2613 info->attrs[HWSIM_ATTR_TX_INFO]);
2614
2615 /* now send back TX status */
2616 txi = IEEE80211_SKB_CB(skb);
2617
7882513b
JL		 2618 ieee80211_tx_info_clear_status(txi);
2619
2620 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
2621 txi->status.rates[i].idx = tx_attempts[i].idx;
2622 txi->status.rates[i].count = tx_attempts[i].count;
2623 /*txi->status.rates[i].flags = 0;*/
2624 }
2625
2626 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
2627
2628 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
2629 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
2630 if (skb->len >= 16) {
2631 hdr = (struct ieee80211_hdr *) skb->data;
c0e30763 2632 mac80211_hwsim_monitor_ack(data2->channel,
e8261171 2633 hdr->addr2);
7882513b 2634 }
06cf5c4c 2635 txi->flags |= IEEE80211_TX_STAT_ACK;
7882513b
JL		 2636 }
2637 ieee80211_tx_status_irqsafe(data2->hw, skb);
2638 return 0;
2639out:
2640 return -EINVAL;
2641
2642}
2643
2644static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
2645 struct genl_info *info)
2646{
e8261171 2647 struct mac80211_hwsim_data *data2;
7882513b 2648 struct ieee80211_rx_status rx_status;
9ddd12af 2649 const u8 *dst;
7882513b 2650 int frame_data_len;
9ddd12af 2651 void *frame_data;
7882513b
JL		 2652 struct sk_buff *skb = NULL;
2653
85ca8fc7
JB		 2654 if (info->snd_portid != wmediumd_portid)
2655 return -EINVAL;
2656
7882513b 2657 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
e8261171
JB		 2658 !info->attrs[HWSIM_ATTR_FRAME] ||
2659 !info->attrs[HWSIM_ATTR_RX_RATE] ||
2660 !info->attrs[HWSIM_ATTR_SIGNAL])
7882513b
JL		 2661 goto out;
2662
9ddd12af 2663 dst = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
7882513b 2664 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
9ddd12af 2665 frame_data = (void *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
7882513b
JL		 2666
2667 /* Allocate new skb here */
2668 skb = alloc_skb(frame_data_len, GFP_KERNEL);
2669 if (skb == NULL)
2670 goto err;
2671
9ddd12af 2672 if (frame_data_len > IEEE80211_MAX_DATA_LEN)
7882513b
JL		 2673 goto err;
2674
9ddd12af
JB		 2675 /* Copy the data */
2676 memcpy(skb_put(skb, frame_data_len), frame_data, frame_data_len);
7882513b 2677
9ddd12af
JB		 2678 data2 = get_hwsim_data_ref_from_addr(dst);
2679 if (!data2)
7882513b
JL		 2680 goto out;
2681
2682 /* check if radio is configured properly */
2683
e8261171 2684 if (data2->idle || !data2->started)
7882513b
JL		 2685 goto out;
2686
9ddd12af 2687 /* A frame is received from user space */
7882513b 2688 memset(&rx_status, 0, sizeof(rx_status));
4f86ed8f
BG		 2689 /* TODO: Check ATTR_FREQ if it exists, and maybe throw away off-channel
2690 * packets?
2691 */
7882513b
JL		 2692 rx_status.freq = data2->channel->center_freq;
2693 rx_status.band = data2->channel->band;
2694 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
2695 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
2696
2697 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
2155c3f8
BG		 2698 data2->rx_pkts++;
2699 data2->rx_bytes += skb->len;
7882513b
JL		 2700 ieee80211_rx_irqsafe(data2->hw, skb);
2701
2702 return 0;
2703err:
c393862f 2704 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 2705out:
2706 dev_kfree_skb(skb);
2707 return -EINVAL;
2708}
2709
2710static int hwsim_register_received_nl(struct sk_buff *skb_2,
2711 struct genl_info *info)
2712{
c5ac0854
JB		 2713 struct mac80211_hwsim_data *data;
2714 int chans = 1;
2715
2716 spin_lock_bh(&hwsim_radio_lock);
2717 list_for_each_entry(data, &hwsim_radios, list)
2718 chans = max(chans, data->channels);
2719 spin_unlock_bh(&hwsim_radio_lock);
2720
2721 /* In the future we should revise the userspace API and allow it
2722 * to set a flag that it does support multi-channel, then we can
2723 * let this pass conditionally on the flag.
2724 * For current userspace, prohibit it since it won't work right.
2725 */
2726 if (chans > 1)
2727 return -EOPNOTSUPP;
2728
85ca8fc7
JB		 2729 if (wmediumd_portid)
2730 return -EBUSY;
7882513b 2731
15e47304 2732 wmediumd_portid = info->snd_portid;
7882513b
JL		 2733
2734 printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
15e47304 2735 "switching to wmediumd mode with pid %d\n", info->snd_portid);
7882513b
JL		 2736
2737 return 0;
7882513b
JL		 2738}
2739
62759361 2740static int hwsim_new_radio_nl(struct sk_buff *msg, struct genl_info *info)
bc791098 2741{
62759361
JR		 2742 struct hwsim_new_radio_params param = { 0 };
2743
2744 param.reg_strict = info->attrs[HWSIM_ATTR_REG_STRICT_REG];
2745 param.p2p_device = info->attrs[HWSIM_ATTR_SUPPORT_P2P_DEVICE];
2746 param.channels = channels;
2747 param.destroy_on_close =
2748 info->attrs[HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE];
bc791098
JB		 2749
2750 if (info->attrs[HWSIM_ATTR_CHANNELS])
62759361 2751 param.channels = nla_get_u32(info->attrs[HWSIM_ATTR_CHANNELS]);
bc791098 2752
9a0cb89a 2753 if (info->attrs[HWSIM_ATTR_NO_VIF])
62759361 2754 param.no_vif = true;
9a0cb89a 2755
5cd8926b 2756 if (info->attrs[HWSIM_ATTR_RADIO_NAME])
62759361 2757 param.hwname = nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]);
5cd8926b 2758
361c3e04 2759 if (info->attrs[HWSIM_ATTR_USE_CHANCTX])
62759361 2760 param.use_chanctx = true;
361c3e04 2761 else
62759361 2762 param.use_chanctx = (param.channels > 1);
361c3e04 2763
26b0e411 2764 if (info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2])
62759361
JR		 2765 param.reg_alpha2 =
2766 nla_data(info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2]);
26b0e411
JB		 2767
2768 if (info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]) {
2769 u32 idx = nla_get_u32(info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]);
2770
2771 if (idx >= ARRAY_SIZE(hwsim_world_regdom_custom))
2772 return -EINVAL;
62759361 2773 param.regd = hwsim_world_regdom_custom[idx];
26b0e411
JB		 2774 }
2775
62759361 2776 return mac80211_hwsim_new_radio(info, &param);
bc791098
JB		 2777}
2778
579a05f2 2779static int hwsim_del_radio_nl(struct sk_buff *msg, struct genl_info *info)
bc791098
JB		 2780{
2781 struct mac80211_hwsim_data *data;
8cdd9e1c
BG		 2782 s64 idx = -1;
2783 const char *hwname = NULL;
bc791098 2784
8cdd9e1c
BG		 2785 if (info->attrs[HWSIM_ATTR_RADIO_ID])
2786 idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
2787 else if (info->attrs[HWSIM_ATTR_RADIO_NAME])
2788 hwname = (void *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]);
2789 else
bc791098 2790 return -EINVAL;
bc791098
JB		 2791
2792 spin_lock_bh(&hwsim_radio_lock);
2793 list_for_each_entry(data, &hwsim_radios, list) {
8cdd9e1c
BG		 2794 if (idx >= 0) {
2795 if (data->idx != idx)
2796 continue;
2797 } else {
2798 if (hwname &&
2799 strcmp(hwname, wiphy_name(data->hw->wiphy)))
2800 continue;
2801 }
2802
bc791098
JB		 2803 list_del(&data->list);
2804 spin_unlock_bh(&hwsim_radio_lock);
579a05f2 2805 mac80211_hwsim_del_radio(data, hwname, info);
bc791098
JB		 2806 return 0;
2807 }
2808 spin_unlock_bh(&hwsim_radio_lock);
2809
2810 return -ENODEV;
7882513b
JL		 2811}
2812
2813/* Generic Netlink operations array */
4534de83 2814static const struct genl_ops hwsim_ops[] = {
7882513b
JL		 2815 {
2816 .cmd = HWSIM_CMD_REGISTER,
2817 .policy = hwsim_genl_policy,
2818 .doit = hwsim_register_received_nl,
2819 .flags = GENL_ADMIN_PERM,
2820 },
2821 {
2822 .cmd = HWSIM_CMD_FRAME,
2823 .policy = hwsim_genl_policy,
2824 .doit = hwsim_cloned_frame_received_nl,
2825 },
2826 {
2827 .cmd = HWSIM_CMD_TX_INFO_FRAME,
2828 .policy = hwsim_genl_policy,
2829 .doit = hwsim_tx_info_frame_received_nl,
2830 },
bc791098 2831 {
62759361 2832 .cmd = HWSIM_CMD_NEW_RADIO,
bc791098 2833 .policy = hwsim_genl_policy,
62759361 2834 .doit = hwsim_new_radio_nl,
bc791098
JB		 2835 .flags = GENL_ADMIN_PERM,
2836 },
2837 {
579a05f2 2838 .cmd = HWSIM_CMD_DEL_RADIO,
bc791098 2839 .policy = hwsim_genl_policy,
579a05f2 2840 .doit = hwsim_del_radio_nl,
bc791098
JB		 2841 .flags = GENL_ADMIN_PERM,
2842 },
7882513b
JL		 2843};
2844
e9ed49bf
JR		 2845static void destroy_radio(struct work_struct *work)
2846{
2847 struct mac80211_hwsim_data *data =
2848 container_of(work, struct mac80211_hwsim_data, destroy_work);
2849
579a05f2 2850 mac80211_hwsim_del_radio(data, NULL, NULL);
e9ed49bf
JR		 2851}
2852
2853static void remove_user_radios(u32 portid)
2854{
2855 struct mac80211_hwsim_data *entry, *tmp;
2856
2857 spin_lock_bh(&hwsim_radio_lock);
2858 list_for_each_entry_safe(entry, tmp, &hwsim_radios, list) {
2859 if (entry->destroy_on_close && entry->portid == portid) {
2860 list_del(&entry->list);
2861 INIT_WORK(&entry->destroy_work, destroy_radio);
2862 schedule_work(&entry->destroy_work);
2863 }
2864 }
2865 spin_unlock_bh(&hwsim_radio_lock);
2866}
2867
7882513b
JL		 2868static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
2869 unsigned long state,
2870 void *_notify)
2871{
2872 struct netlink_notify *notify = _notify;
2873
2874 if (state != NETLINK_URELEASE)
2875 return NOTIFY_DONE;
2876
e9ed49bf
JR		 2877 remove_user_radios(notify->portid);
2878
15e47304 2879 if (notify->portid == wmediumd_portid) {
7882513b
JL		 2880 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
2881 " socket, switching to perfect channel medium\n");
15e47304 2882 wmediumd_portid = 0;
7882513b
JL		 2883 }
2884 return NOTIFY_DONE;
2885
2886}
2887
2888static struct notifier_block hwsim_netlink_notifier = {
2889 .notifier_call = mac80211_hwsim_netlink_notify,
2890};
2891
2892static int hwsim_init_netlink(void)
2893{
2894 int rc;
e8261171 2895
7882513b
JL		 2896 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
2897
62759361
JR		 2898 rc = genl_register_family_with_ops_groups(&hwsim_genl_family,
2899 hwsim_ops,
2900 hwsim_mcgrps);
7882513b
JL		 2901 if (rc)
2902 goto failure;
2903
2904 rc = netlink_register_notifier(&hwsim_netlink_notifier);
2905 if (rc)
2906 goto failure;
2907
2908 return 0;
2909
2910failure:
c393862f 2911 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 2912 return -EINVAL;
2913}
2914
2915static void hwsim_exit_netlink(void)
2916{
7882513b
JL		 2917 /* unregister the notifier */
2918 netlink_unregister_notifier(&hwsim_netlink_notifier);
2919 /* unregister the family */
cf7a6b2d 2920 genl_unregister_family(&hwsim_genl_family);
7882513b
JL		 2921}
2922
acc1e7a3
JM		 2923static int __init init_mac80211_hwsim(void)
2924{
f39c2bfa 2925 int i, err;
acc1e7a3 2926
bc791098 2927 if (radios < 0 || radios > 100)
acc1e7a3
JM		 2928 return -EINVAL;
2929
e8261171
JB		 2930 if (channels < 1)
2931 return -EINVAL;
2932
38ed5048
JB		 2933 mac80211_hwsim_mchan_ops = mac80211_hwsim_ops;
2934 mac80211_hwsim_mchan_ops.hw_scan = mac80211_hwsim_hw_scan;
2935 mac80211_hwsim_mchan_ops.cancel_hw_scan = mac80211_hwsim_cancel_hw_scan;
2936 mac80211_hwsim_mchan_ops.sw_scan_start = NULL;
2937 mac80211_hwsim_mchan_ops.sw_scan_complete = NULL;
2938 mac80211_hwsim_mchan_ops.remain_on_channel = mac80211_hwsim_roc;
2939 mac80211_hwsim_mchan_ops.cancel_remain_on_channel = mac80211_hwsim_croc;
2940 mac80211_hwsim_mchan_ops.add_chanctx = mac80211_hwsim_add_chanctx;
2941 mac80211_hwsim_mchan_ops.remove_chanctx = mac80211_hwsim_remove_chanctx;
2942 mac80211_hwsim_mchan_ops.change_chanctx = mac80211_hwsim_change_chanctx;
2943 mac80211_hwsim_mchan_ops.assign_vif_chanctx =
2944 mac80211_hwsim_assign_vif_chanctx;
2945 mac80211_hwsim_mchan_ops.unassign_vif_chanctx =
2946 mac80211_hwsim_unassign_vif_chanctx;
69068036 2947
0e057d73
JB		 2948 spin_lock_init(&hwsim_radio_lock);
2949 INIT_LIST_HEAD(&hwsim_radios);
acc1e7a3 2950
c07fe5ae 2951 err = platform_driver_register(&mac80211_hwsim_driver);
9ea92774
MP		 2952 if (err)
2953 return err;
2954
acc1e7a3 2955 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
9ea92774
MP		 2956 if (IS_ERR(hwsim_class)) {
2957 err = PTR_ERR(hwsim_class);
f39c2bfa 2958 goto out_unregister_driver;
9ea92774 2959 }
acc1e7a3 2960
62759361
JR		 2961 err = hwsim_init_netlink();
2962 if (err < 0)
2963 goto out_unregister_driver;
2964
0e057d73 2965 for (i = 0; i < radios; i++) {
62759361
JR		 2966 struct hwsim_new_radio_params param = { 0 };
2967
2968 param.channels = channels;
acc1e7a3 2969
4a5af9c2 2970 switch (regtest) {
4a5af9c2 2971 case HWSIM_REGTEST_DIFF_COUNTRY:
26b0e411 2972 if (i < ARRAY_SIZE(hwsim_alpha2s))
62759361 2973 param.reg_alpha2 = hwsim_alpha2s[i];
4a5af9c2
LR		 2974 break;
2975 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
2976 if (!i)
62759361 2977 param.reg_alpha2 = hwsim_alpha2s[0];
4a5af9c2 2978 break;
4a5af9c2 2979 case HWSIM_REGTEST_STRICT_ALL:
62759361 2980 param.reg_strict = true;
26b0e411 2981 case HWSIM_REGTEST_DRIVER_REG_ALL:
62759361 2982 param.reg_alpha2 = hwsim_alpha2s[0];
4a5af9c2 2983 break;
26b0e411
JB		 2984 case HWSIM_REGTEST_WORLD_ROAM:
2985 if (i == 0)
62759361 2986 param.regd = &hwsim_world_regdom_custom_01;
4a5af9c2
LR		 2987 break;
2988 case HWSIM_REGTEST_CUSTOM_WORLD:
62759361 2989 param.regd = &hwsim_world_regdom_custom_01;
26b0e411 2990 break;
4a5af9c2 2991 case HWSIM_REGTEST_CUSTOM_WORLD_2:
26b0e411 2992 if (i == 0)
62759361 2993 param.regd = &hwsim_world_regdom_custom_01;
26b0e411 2994 else if (i == 1)
62759361 2995 param.regd = &hwsim_world_regdom_custom_02;
4a5af9c2
LR		 2996 break;
2997 case HWSIM_REGTEST_STRICT_FOLLOW:
26b0e411 2998 if (i == 0) {
62759361
JR		 2999 param.reg_strict = true;
3000 param.reg_alpha2 = hwsim_alpha2s[0];
26b0e411 3001 }
4a5af9c2
LR		 3002 break;
3003 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
26b0e411 3004 if (i == 0) {
62759361
JR		 3005 param.reg_strict = true;
3006 param.reg_alpha2 = hwsim_alpha2s[0];
26b0e411 3007 } else if (i == 1) {
62759361 3008 param.reg_alpha2 = hwsim_alpha2s[1];
26b0e411 3009 }
4a5af9c2
LR		 3010 break;
3011 case HWSIM_REGTEST_ALL:
26b0e411
JB		 3012 switch (i) {
3013 case 0:
62759361 3014 param.regd = &hwsim_world_regdom_custom_01;
26b0e411
JB		 3015 break;
3016 case 1:
62759361 3017 param.regd = &hwsim_world_regdom_custom_02;
26b0e411
JB		 3018 break;
3019 case 2:
62759361 3020 param.reg_alpha2 = hwsim_alpha2s[0];
26b0e411
JB		 3021 break;
3022 case 3:
62759361 3023 param.reg_alpha2 = hwsim_alpha2s[1];
26b0e411
JB		 3024 break;
3025 case 4:
62759361
JR		 3026 param.reg_strict = true;
3027 param.reg_alpha2 = hwsim_alpha2s[2];
26b0e411
JB		 3028 break;
3029 }
4a5af9c2
LR		 3030 break;
3031 default:
3032 break;
3033 }
3034
62759361
JR		 3035 param.p2p_device = support_p2p_device;
3036 param.use_chanctx = channels > 1;
3037
3038 err = mac80211_hwsim_new_radio(NULL, &param);
bc791098 3039 if (err < 0)
f39c2bfa 3040 goto out_free_radios;
acc1e7a3
JM		 3041 }
3042
c835a677
TG		 3043 hwsim_mon = alloc_netdev(0, "hwsim%d", NET_NAME_UNKNOWN,
3044 hwsim_mon_setup);
bcdd8220
WY		 3045 if (hwsim_mon == NULL) {
3046 err = -ENOMEM;
f39c2bfa 3047 goto out_free_radios;
bcdd8220 3048 }
acc1e7a3 3049
7882513b 3050 rtnl_lock();
7882513b 3051 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
f39c2bfa
JB		 3052 if (err < 0) {
3053 rtnl_unlock();
3054 goto out_free_radios;
3055 }
7882513b
JL		 3056
3057 err = register_netdevice(hwsim_mon);
f39c2bfa
JB		 3058 if (err < 0) {
3059 rtnl_unlock();
3060 goto out_free_mon;
3061 }
7882513b
JL		 3062 rtnl_unlock();
3063
acc1e7a3
JM		 3064 return 0;
3065
f39c2bfa 3066out_free_mon:
acc1e7a3 3067 free_netdev(hwsim_mon);
f39c2bfa 3068out_free_radios:
3a33cc10 3069 mac80211_hwsim_free();
f39c2bfa 3070out_unregister_driver:
c07fe5ae 3071 platform_driver_unregister(&mac80211_hwsim_driver);
acc1e7a3
JM		 3072 return err;
3073}
f8fffc7e 3074module_init(init_mac80211_hwsim);
acc1e7a3
JM		 3075
3076static void __exit exit_mac80211_hwsim(void)
3077{
0e057d73 3078 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
acc1e7a3 3079
7882513b
JL		 3080 hwsim_exit_netlink();
3081
acc1e7a3 3082 mac80211_hwsim_free();
5d416351 3083 unregister_netdev(hwsim_mon);
c07fe5ae 3084 platform_driver_unregister(&mac80211_hwsim_driver);
acc1e7a3 3085}
acc1e7a3 3086module_exit(exit_mac80211_hwsim);
Linux kernel - Deliverables
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