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mac80211-hwsim: add missing policy entries
[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
490/* MAC80211_HWSIM netlink policy */
491
205d2429 492static const struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
9ddd12af
JB		 493 [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
494 [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
7882513b
JL		 495 [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
496 .len = IEEE80211_MAX_DATA_LEN },
497 [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
498 [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
499 [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
500 [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC,
9ddd12af
JB		 501 .len = IEEE80211_TX_MAX_RATES *
502 sizeof(struct hwsim_tx_rate)},
7882513b 503 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
bc791098
JB		 504 [HWSIM_ATTR_CHANNELS] = { .type = NLA_U32 },
505 [HWSIM_ATTR_RADIO_ID] = { .type = NLA_U32 },
26b0e411
JB		 506 [HWSIM_ATTR_REG_HINT_ALPHA2] = { .type = NLA_STRING, .len = 2 },
507 [HWSIM_ATTR_REG_CUSTOM_REG] = { .type = NLA_U32 },
508 [HWSIM_ATTR_REG_STRICT_REG] = { .type = NLA_FLAG },
8c66a3d9 509 [HWSIM_ATTR_SUPPORT_P2P_DEVICE] = { .type = NLA_FLAG },
e9ed49bf 510 [HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE] = { .type = NLA_FLAG },
de29eda8
JB		 511 [HWSIM_ATTR_RADIO_NAME] = { .type = NLA_STRING },
512 [HWSIM_ATTR_NO_VIF] = { .type = NLA_FLAG },
513 [HWSIM_ATTR_FREQ] = { .type = NLA_U32 },
7882513b 514};
acc1e7a3 515
de0421d5
JB		 516static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
517 struct sk_buff *skb,
518 struct ieee80211_channel *chan);
519
520/* sysfs attributes */
521static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
522{
523 struct mac80211_hwsim_data *data = dat;
524 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
525 struct sk_buff *skb;
526 struct ieee80211_pspoll *pspoll;
527
528 if (!vp->assoc)
529 return;
530
531 wiphy_debug(data->hw->wiphy,
532 "%s: send PS-Poll to %pM for aid %d\n",
533 __func__, vp->bssid, vp->aid);
534
535 skb = dev_alloc_skb(sizeof(*pspoll));
536 if (!skb)
537 return;
538 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
539 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
540 IEEE80211_STYPE_PSPOLL |
541 IEEE80211_FCTL_PM);
542 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
543 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
544 memcpy(pspoll->ta, mac, ETH_ALEN);
545
546 rcu_read_lock();
547 mac80211_hwsim_tx_frame(data->hw, skb,
548 rcu_dereference(vif->chanctx_conf)->def.chan);
549 rcu_read_unlock();
550}
551
552static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
553 struct ieee80211_vif *vif, int ps)
554{
555 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
556 struct sk_buff *skb;
557 struct ieee80211_hdr *hdr;
558
559 if (!vp->assoc)
560 return;
561
562 wiphy_debug(data->hw->wiphy,
563 "%s: send data::nullfunc to %pM ps=%d\n",
564 __func__, vp->bssid, ps);
565
566 skb = dev_alloc_skb(sizeof(*hdr));
567 if (!skb)
568 return;
569 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
570 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
571 IEEE80211_STYPE_NULLFUNC |
572 (ps ? IEEE80211_FCTL_PM : 0));
573 hdr->duration_id = cpu_to_le16(0);
574 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
575 memcpy(hdr->addr2, mac, ETH_ALEN);
576 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
577
578 rcu_read_lock();
579 mac80211_hwsim_tx_frame(data->hw, skb,
580 rcu_dereference(vif->chanctx_conf)->def.chan);
581 rcu_read_unlock();
582}
583
584
585static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
586 struct ieee80211_vif *vif)
587{
588 struct mac80211_hwsim_data *data = dat;
589 hwsim_send_nullfunc(data, mac, vif, 1);
590}
591
592static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
593 struct ieee80211_vif *vif)
594{
595 struct mac80211_hwsim_data *data = dat;
596 hwsim_send_nullfunc(data, mac, vif, 0);
597}
598
599static int hwsim_fops_ps_read(void *dat, u64 *val)
600{
601 struct mac80211_hwsim_data *data = dat;
602 *val = data->ps;
603 return 0;
604}
605
606static int hwsim_fops_ps_write(void *dat, u64 val)
607{
608 struct mac80211_hwsim_data *data = dat;
609 enum ps_mode old_ps;
610
611 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
612 val != PS_MANUAL_POLL)
613 return -EINVAL;
614
615 old_ps = data->ps;
616 data->ps = val;
617
618 if (val == PS_MANUAL_POLL) {
619 ieee80211_iterate_active_interfaces(data->hw,
620 IEEE80211_IFACE_ITER_NORMAL,
621 hwsim_send_ps_poll, data);
622 data->ps_poll_pending = true;
623 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
624 ieee80211_iterate_active_interfaces(data->hw,
625 IEEE80211_IFACE_ITER_NORMAL,
626 hwsim_send_nullfunc_ps,
627 data);
628 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
629 ieee80211_iterate_active_interfaces(data->hw,
630 IEEE80211_IFACE_ITER_NORMAL,
631 hwsim_send_nullfunc_no_ps,
632 data);
633 }
634
635 return 0;
636}
637
638DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
639 "%llu\n");
640
641static int hwsim_write_simulate_radar(void *dat, u64 val)
642{
643 struct mac80211_hwsim_data *data = dat;
644
645 ieee80211_radar_detected(data->hw);
646
647 return 0;
648}
649
650DEFINE_SIMPLE_ATTRIBUTE(hwsim_simulate_radar, NULL,
651 hwsim_write_simulate_radar, "%llu\n");
652
653static int hwsim_fops_group_read(void *dat, u64 *val)
654{
655 struct mac80211_hwsim_data *data = dat;
656 *val = data->group;
657 return 0;
658}
659
660static int hwsim_fops_group_write(void *dat, u64 val)
661{
662 struct mac80211_hwsim_data *data = dat;
663 data->group = val;
664 return 0;
665}
666
667DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
668 hwsim_fops_group_read, hwsim_fops_group_write,
669 "%llx\n");
670
d0cf9c0d
SH		 671static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
672 struct net_device *dev)
acc1e7a3
JM		 673{
674 /* TODO: allow packet injection */
675 dev_kfree_skb(skb);
6ed10654 676 return NETDEV_TX_OK;
acc1e7a3
JM		 677}
678
b66851c3
TP		 679static inline u64 mac80211_hwsim_get_tsf_raw(void)
680{
681 return ktime_to_us(ktime_get_real());
682}
683
2f40b940
JC		 684static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
685{
b66851c3 686 u64 now = mac80211_hwsim_get_tsf_raw();
2f40b940
JC		 687 return cpu_to_le64(now + data->tsf_offset);
688}
acc1e7a3 689
12ce8ba3 690static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
b66851c3 691 struct ieee80211_vif *vif)
12ce8ba3
JC		 692{
693 struct mac80211_hwsim_data *data = hw->priv;
694 return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
695}
696
697static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
698 struct ieee80211_vif *vif, u64 tsf)
699{
700 struct mac80211_hwsim_data *data = hw->priv;
45034bfb 701 u64 now = mac80211_hwsim_get_tsf(hw, vif);
c51f8783 702 u32 bcn_int = data->beacon_int;
5d26b508 703 u64 delta = abs64(tsf - now);
45034bfb 704
c51f8783 705 /* adjust after beaconing with new timestamp at old TBTT */
5d26b508
AB		 706 if (tsf > now) {
707 data->tsf_offset += delta;
708 data->bcn_delta = do_div(delta, bcn_int);
709 } else {
710 data->tsf_offset -= delta;
711 data->bcn_delta = -do_div(delta, bcn_int);
712 }
12ce8ba3
JC		 713}
714
acc1e7a3 715static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
e8261171
JB		 716 struct sk_buff *tx_skb,
717 struct ieee80211_channel *chan)
acc1e7a3
JM		 718{
719 struct mac80211_hwsim_data *data = hw->priv;
720 struct sk_buff *skb;
721 struct hwsim_radiotap_hdr *hdr;
722 u16 flags;
723 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
724 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
725
726 if (!netif_running(hwsim_mon))
727 return;
728
729 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
730 if (skb == NULL)
731 return;
732
733 hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
734 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
735 hdr->hdr.it_pad = 0;
736 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
f248f105
JM		 737 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
738 (1 << IEEE80211_RADIOTAP_RATE) |
2f40b940 739 (1 << IEEE80211_RADIOTAP_TSFT) |
f248f105 740 (1 << IEEE80211_RADIOTAP_CHANNEL));
2f40b940 741 hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
acc1e7a3
JM		 742 hdr->rt_flags = 0;
743 hdr->rt_rate = txrate->bitrate / 5;
e8261171 744 hdr->rt_channel = cpu_to_le16(chan->center_freq);
acc1e7a3
JM		 745 flags = IEEE80211_CHAN_2GHZ;
746 if (txrate->flags & IEEE80211_RATE_ERP_G)
747 flags |= IEEE80211_CHAN_OFDM;
748 else
749 flags |= IEEE80211_CHAN_CCK;
750 hdr->rt_chbitmask = cpu_to_le16(flags);
751
752 skb->dev = hwsim_mon;
753 skb_set_mac_header(skb, 0);
754 skb->ip_summed = CHECKSUM_UNNECESSARY;
755 skb->pkt_type = PACKET_OTHERHOST;
f248f105 756 skb->protocol = htons(ETH_P_802_2);
acc1e7a3
JM		 757 memset(skb->cb, 0, sizeof(skb->cb));
758 netif_rx(skb);
759}
760
761
e8261171
JB		 762static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
763 const u8 *addr)
6c085227 764{
6c085227 765 struct sk_buff *skb;
76a56eb3 766 struct hwsim_radiotap_ack_hdr *hdr;
6c085227
JM		 767 u16 flags;
768 struct ieee80211_hdr *hdr11;
769
770 if (!netif_running(hwsim_mon))
771 return;
772
773 skb = dev_alloc_skb(100);
774 if (skb == NULL)
775 return;
776
76a56eb3 777 hdr = (struct hwsim_radiotap_ack_hdr *) skb_put(skb, sizeof(*hdr));
6c085227
JM		 778 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
779 hdr->hdr.it_pad = 0;
780 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
781 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
782 (1 << IEEE80211_RADIOTAP_CHANNEL));
783 hdr->rt_flags = 0;
76a56eb3 784 hdr->pad = 0;
e8261171 785 hdr->rt_channel = cpu_to_le16(chan->center_freq);
6c085227
JM		 786 flags = IEEE80211_CHAN_2GHZ;
787 hdr->rt_chbitmask = cpu_to_le16(flags);
788
789 hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
790 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
791 IEEE80211_STYPE_ACK);
792 hdr11->duration_id = cpu_to_le16(0);
793 memcpy(hdr11->addr1, addr, ETH_ALEN);
794
795 skb->dev = hwsim_mon;
796 skb_set_mac_header(skb, 0);
797 skb->ip_summed = CHECKSUM_UNNECESSARY;
798 skb->pkt_type = PACKET_OTHERHOST;
799 skb->protocol = htons(ETH_P_802_2);
800 memset(skb->cb, 0, sizeof(skb->cb));
801 netif_rx(skb);
802}
803
3283e286
JB		 804struct mac80211_hwsim_addr_match_data {
805 u8 addr[ETH_ALEN];
806 bool ret;
807};
808
809static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
810 struct ieee80211_vif *vif)
811{
812 struct mac80211_hwsim_addr_match_data *md = data;
813
814 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
815 md->ret = true;
816}
817
818static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
819 const u8 *addr)
820{
821 struct mac80211_hwsim_addr_match_data md = {
822 .ret = false,
823 };
824
825 memcpy(md.addr, addr, ETH_ALEN);
826
827 ieee80211_iterate_active_interfaces_atomic(data->hw,
828 IEEE80211_IFACE_ITER_NORMAL,
829 mac80211_hwsim_addr_iter,
830 &md);
831
832 return md.ret;
833}
6c085227 834
fc6971d4
JM		 835static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
836 struct sk_buff *skb)
837{
838 switch (data->ps) {
839 case PS_DISABLED:
840 return true;
841 case PS_ENABLED:
842 return false;
843 case PS_AUTO_POLL:
844 /* TODO: accept (some) Beacons by default and other frames only
845 * if pending PS-Poll has been sent */
846 return true;
847 case PS_MANUAL_POLL:
848 /* Allow unicast frames to own address if there is a pending
849 * PS-Poll */
850 if (data->ps_poll_pending &&
3283e286 851 mac80211_hwsim_addr_match(data, skb->data + 4)) {
fc6971d4
JM		 852 data->ps_poll_pending = false;
853 return true;
854 }
855 return false;
856 }
857
858 return true;
859}
860
7882513b
JL		 861static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
862 struct sk_buff *my_skb,
15e47304 863 int dst_portid)
7882513b
JL		 864{
865 struct sk_buff *skb;
866 struct mac80211_hwsim_data *data = hw->priv;
867 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
868 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
869 void *msg_head;
870 unsigned int hwsim_flags = 0;
871 int i;
872 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
873
7882513b
JL		 874 if (data->ps != PS_DISABLED)
875 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
876 /* If the queue contains MAX_QUEUE skb's drop some */
877 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
878 /* Droping until WARN_QUEUE level */
2155c3f8 879 while (skb_queue_len(&data->pending) >= WARN_QUEUE) {
b7bc9679 880 ieee80211_free_txskb(hw, skb_dequeue(&data->pending));
2155c3f8
BG		 881 data->tx_dropped++;
882 }
7882513b
JL		 883 }
884
58050fce 885 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
7882513b
JL		 886 if (skb == NULL)
887 goto nla_put_failure;
888
889 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
890 HWSIM_CMD_FRAME);
891 if (msg_head == NULL) {
892 printk(KERN_DEBUG "mac80211_hwsim: problem with msg_head\n");
893 goto nla_put_failure;
894 }
895
633c9389 896 if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
9ddd12af 897 ETH_ALEN, data->addresses[1].addr))
633c9389 898 goto nla_put_failure;
265dc7f0 899
7882513b 900 /* We get the skb->data */
633c9389
DM		 901 if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
902 goto nla_put_failure;
7882513b
JL		 903
904 /* We get the flags for this transmission, and we translate them to
905 wmediumd flags */
906
907 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
908 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
909
910 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
911 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
912
633c9389
DM		 913 if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
914 goto nla_put_failure;
7882513b 915
4f86ed8f
BG		 916 if (nla_put_u32(skb, HWSIM_ATTR_FREQ, data->channel->center_freq))
917 goto nla_put_failure;
918
7882513b
JL		 919 /* We get the tx control (rate and retries) info*/
920
921 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
922 tx_attempts[i].idx = info->status.rates[i].idx;
923 tx_attempts[i].count = info->status.rates[i].count;
924 }
925
633c9389
DM		 926 if (nla_put(skb, HWSIM_ATTR_TX_INFO,
927 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
928 tx_attempts))
929 goto nla_put_failure;
7882513b
JL		 930
931 /* We create a cookie to identify this skb */
633c9389
DM		 932 if (nla_put_u64(skb, HWSIM_ATTR_COOKIE, (unsigned long) my_skb))
933 goto nla_put_failure;
7882513b
JL		 934
935 genlmsg_end(skb, msg_head);
15e47304 936 genlmsg_unicast(&init_net, skb, dst_portid);
7882513b
JL		 937
938 /* Enqueue the packet */
939 skb_queue_tail(&data->pending, my_skb);
2155c3f8
BG		 940 data->tx_pkts++;
941 data->tx_bytes += my_skb->len;
7882513b
JL		 942 return;
943
944nla_put_failure:
c393862f 945 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
b7bc9679 946 ieee80211_free_txskb(hw, my_skb);
2155c3f8 947 data->tx_failed++;
7882513b
JL		 948}
949
e8261171
JB		 950static bool hwsim_chans_compat(struct ieee80211_channel *c1,
951 struct ieee80211_channel *c2)
952{
953 if (!c1 || !c2)
954 return false;
955
956 return c1->center_freq == c2->center_freq;
957}
958
959struct tx_iter_data {
960 struct ieee80211_channel *channel;
961 bool receive;
962};
963
964static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
965 struct ieee80211_vif *vif)
966{
967 struct tx_iter_data *data = _data;
968
969 if (!vif->chanctx_conf)
970 return;
971
972 if (!hwsim_chans_compat(data->channel,
4bf88530 973 rcu_dereference(vif->chanctx_conf)->def.chan))
e8261171
JB		 974 return;
975
976 data->receive = true;
977}
978
7882513b 979static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
e8261171
JB		 980 struct sk_buff *skb,
981 struct ieee80211_channel *chan)
acc1e7a3 982{
0e057d73
JB		 983 struct mac80211_hwsim_data *data = hw->priv, *data2;
984 bool ack = false;
e36cfdc9 985 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
acc1e7a3 986 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
e36cfdc9 987 struct ieee80211_rx_status rx_status;
b66851c3 988 u64 now;
acc1e7a3
JM		 989
990 memset(&rx_status, 0, sizeof(rx_status));
f4bda337 991 rx_status.flag |= RX_FLAG_MACTIME_START;
e8261171
JB		 992 rx_status.freq = chan->center_freq;
993 rx_status.band = chan->band;
dad6330d
KB		 994 if (info->control.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) {
995 rx_status.rate_idx =
996 ieee80211_rate_get_vht_mcs(&info->control.rates[0]);
997 rx_status.vht_nss =
998 ieee80211_rate_get_vht_nss(&info->control.rates[0]);
999 rx_status.flag |= RX_FLAG_VHT;
1000 } else {
1001 rx_status.rate_idx = info->control.rates[0].idx;
1002 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
1003 rx_status.flag |= RX_FLAG_HT;
1004 }
281ed297
JM		 1005 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
1006 rx_status.flag |= RX_FLAG_40MHZ;
1007 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
1008 rx_status.flag |= RX_FLAG_SHORT_GI;
4b14c96d 1009 /* TODO: simulate real signal strength (and optional packet loss) */
bdd7bd16 1010 rx_status.signal = data->power_level - 50;
acc1e7a3 1011
fc6971d4
JM		 1012 if (data->ps != PS_DISABLED)
1013 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1014
90e3012e
JB		 1015 /* release the skb's source info */
1016 skb_orphan(skb);
c0acf38e 1017 skb_dst_drop(skb);
90e3012e
JB		 1018 skb->mark = 0;
1019 secpath_reset(skb);
1020 nf_reset(skb);
1021
b66851c3
TP		 1022 /*
1023 * Get absolute mactime here so all HWs RX at the "same time", and
1024 * absolute TX time for beacon mactime so the timestamp matches.
1025 * Giving beacons a different mactime than non-beacons looks messy, but
1026 * it helps the Toffset be exact and a ~10us mactime discrepancy
1027 * probably doesn't really matter.
1028 */
1029 if (ieee80211_is_beacon(hdr->frame_control) ||
1030 ieee80211_is_probe_resp(hdr->frame_control))
1031 now = data->abs_bcn_ts;
1032 else
1033 now = mac80211_hwsim_get_tsf_raw();
1034
acc1e7a3 1035 /* Copy skb to all enabled radios that are on the current frequency */
0e057d73
JB		 1036 spin_lock(&hwsim_radio_lock);
1037 list_for_each_entry(data2, &hwsim_radios, list) {
acc1e7a3 1038 struct sk_buff *nskb;
e8261171
JB		 1039 struct tx_iter_data tx_iter_data = {
1040 .receive = false,
1041 .channel = chan,
1042 };
acc1e7a3 1043
0e057d73 1044 if (data == data2)
acc1e7a3 1045 continue;
0e057d73 1046
e8261171
JB		 1047 if (!data2->started || (data2->idle && !data2->tmp_chan) ||
1048 !hwsim_ps_rx_ok(data2, skb))
acc1e7a3
JM		 1049 continue;
1050
e8261171
JB		 1051 if (!(data->group & data2->group))
1052 continue;
1053
1054 if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
1055 !hwsim_chans_compat(chan, data2->channel)) {
1056 ieee80211_iterate_active_interfaces_atomic(
8b2c9824
JB		 1057 data2->hw, IEEE80211_IFACE_ITER_NORMAL,
1058 mac80211_hwsim_tx_iter, &tx_iter_data);
e8261171
JB		 1059 if (!tx_iter_data.receive)
1060 continue;
1061 }
1062
90b9e446
JB		 1063 /*
1064 * reserve some space for our vendor and the normal
1065 * radiotap header, since we're copying anyway
1066 */
a357d7f9
JB		 1067 if (skb->len < PAGE_SIZE && paged_rx) {
1068 struct page *page = alloc_page(GFP_ATOMIC);
1069
1070 if (!page)
1071 continue;
1072
1073 nskb = dev_alloc_skb(128);
1074 if (!nskb) {
1075 __free_page(page);
1076 continue;
1077 }
1078
1079 memcpy(page_address(page), skb->data, skb->len);
1080 skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
1081 } else {
1082 nskb = skb_copy(skb, GFP_ATOMIC);
1083 if (!nskb)
1084 continue;
1085 }
acc1e7a3 1086
265dc7f0 1087 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
0e057d73 1088 ack = true;
f483ad25 1089
b66851c3 1090 rx_status.mactime = now + data2->tsf_offset;
90b9e446 1091
f1d58c25 1092 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
2155c3f8
BG		 1093 data2->rx_pkts++;
1094 data2->rx_bytes += nskb->len;
f1d58c25 1095 ieee80211_rx_irqsafe(data2->hw, nskb);
acc1e7a3 1096 }
0e057d73 1097 spin_unlock(&hwsim_radio_lock);
acc1e7a3 1098
e36cfdc9
JM		 1099 return ack;
1100}
1101
36323f81
TH		 1102static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
1103 struct ieee80211_tx_control *control,
1104 struct sk_buff *skb)
e36cfdc9 1105{
e8261171
JB		 1106 struct mac80211_hwsim_data *data = hw->priv;
1107 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1108 struct ieee80211_chanctx_conf *chanctx_conf;
1109 struct ieee80211_channel *channel;
0e057d73 1110 bool ack;
15e47304 1111 u32 _portid;
e36cfdc9 1112
e8261171 1113 if (WARN_ON(skb->len < 10)) {
e36cfdc9 1114 /* Should not happen; just a sanity check for addr1 use */
fe0f3cd2 1115 ieee80211_free_txskb(hw, skb);
7bb45683 1116 return;
e36cfdc9
JM		 1117 }
1118
361c3e04 1119 if (!data->use_chanctx) {
e8261171
JB		 1120 channel = data->channel;
1121 } else if (txi->hw_queue == 4) {
1122 channel = data->tmp_chan;
1123 } else {
1124 chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf);
1125 if (chanctx_conf)
4bf88530 1126 channel = chanctx_conf->def.chan;
e8261171
JB		 1127 else
1128 channel = NULL;
1129 }
1130
1131 if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
fe0f3cd2 1132 ieee80211_free_txskb(hw, skb);
e8261171
JB		 1133 return;
1134 }
1135
1136 if (data->idle && !data->tmp_chan) {
1137 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
fe0f3cd2 1138 ieee80211_free_txskb(hw, skb);
e8261171
JB		 1139 return;
1140 }
1141
1142 if (txi->control.vif)
1143 hwsim_check_magic(txi->control.vif);
1144 if (control->sta)
1145 hwsim_check_sta_magic(control->sta);
1146
81338410 1147 if (hw->flags & IEEE80211_HW_SUPPORTS_RC_TABLE)
1eb32179
KB		 1148 ieee80211_get_tx_rates(txi->control.vif, control->sta, skb,
1149 txi->control.rates,
1150 ARRAY_SIZE(txi->control.rates));
e8261171 1151
1eb32179 1152 txi->rate_driver_data[0] = channel;
e8261171
JB		 1153 mac80211_hwsim_monitor_rx(hw, skb, channel);
1154
7882513b 1155 /* wmediumd mode check */
15e47304 1156 _portid = ACCESS_ONCE(wmediumd_portid);
7882513b 1157
15e47304
EB		 1158 if (_portid)
1159 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
7882513b
JL		 1160
1161 /* NO wmediumd detected, perfect medium simulation */
2155c3f8
BG		 1162 data->tx_pkts++;
1163 data->tx_bytes += skb->len;
e8261171 1164 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
7882513b 1165
6c085227
JM		 1166 if (ack && skb->len >= 16) {
1167 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
e8261171 1168 mac80211_hwsim_monitor_ack(channel, hdr->addr2);
6c085227 1169 }
e36cfdc9 1170
e6a9854b 1171 ieee80211_tx_info_clear_status(txi);
2a4ffa4c
JC		 1172
1173 /* frame was transmitted at most favorable rate at first attempt */
1174 txi->control.rates[0].count = 1;
1175 txi->control.rates[1].idx = -1;
1176
e6a9854b
JB		 1177 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
1178 txi->flags |= IEEE80211_TX_STAT_ACK;
acc1e7a3 1179 ieee80211_tx_status_irqsafe(hw, skb);
acc1e7a3
JM		 1180}
1181
1182
1183static int mac80211_hwsim_start(struct ieee80211_hw *hw)
1184{
1185 struct mac80211_hwsim_data *data = hw->priv;
c96c31e4 1186 wiphy_debug(hw->wiphy, "%s\n", __func__);
3db1cd5c 1187 data->started = true;
acc1e7a3
JM		 1188 return 0;
1189}
1190
1191
1192static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
1193{
1194 struct mac80211_hwsim_data *data = hw->priv;
3db1cd5c 1195 data->started = false;
01e59e46 1196 tasklet_hrtimer_cancel(&data->beacon_timer);
c96c31e4 1197 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 1198}
1199
1200
1201static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
1ed32e4f 1202 struct ieee80211_vif *vif)
acc1e7a3 1203{
c96c31e4 1204 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 1205 __func__, ieee80211_vif_type_p2p(vif),
1206 vif->addr);
1ed32e4f 1207 hwsim_set_magic(vif);
e8261171
JB		 1208
1209 vif->cab_queue = 0;
1210 vif->hw_queue[IEEE80211_AC_VO] = 0;
1211 vif->hw_queue[IEEE80211_AC_VI] = 1;
1212 vif->hw_queue[IEEE80211_AC_BE] = 2;
1213 vif->hw_queue[IEEE80211_AC_BK] = 3;
1214
acc1e7a3
JM		 1215 return 0;
1216}
1217
1218
c35d0270
JB		 1219static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
1220 struct ieee80211_vif *vif,
2ca27bcf
JB		 1221 enum nl80211_iftype newtype,
1222 bool newp2p)
c35d0270 1223{
2ca27bcf 1224 newtype = ieee80211_iftype_p2p(newtype, newp2p);
c35d0270
JB		 1225 wiphy_debug(hw->wiphy,
1226 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
2ca27bcf
JB		 1227 __func__, ieee80211_vif_type_p2p(vif),
1228 newtype, vif->addr);
c35d0270
JB		 1229 hwsim_check_magic(vif);
1230
3eb92f6a
JB		 1231 /*
1232 * interface may change from non-AP to AP in
1233 * which case this needs to be set up again
1234 */
1235 vif->cab_queue = 0;
1236
c35d0270
JB		 1237 return 0;
1238}
1239
acc1e7a3 1240static void mac80211_hwsim_remove_interface(
1ed32e4f 1241 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
acc1e7a3 1242{
c96c31e4 1243 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 1244 __func__, ieee80211_vif_type_p2p(vif),
1245 vif->addr);
1ed32e4f
JB		 1246 hwsim_check_magic(vif);
1247 hwsim_clear_magic(vif);
acc1e7a3
JM		 1248}
1249
e8261171
JB		 1250static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
1251 struct sk_buff *skb,
1252 struct ieee80211_channel *chan)
1253{
1254 u32 _pid = ACCESS_ONCE(wmediumd_portid);
1255
81338410 1256 if (hw->flags & IEEE80211_HW_SUPPORTS_RC_TABLE) {
1eb32179
KB		 1257 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1258 ieee80211_get_tx_rates(txi->control.vif, NULL, skb,
1259 txi->control.rates,
1260 ARRAY_SIZE(txi->control.rates));
1261 }
1262
e8261171
JB		 1263 mac80211_hwsim_monitor_rx(hw, skb, chan);
1264
1265 if (_pid)
1266 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
1267
1268 mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
1269 dev_kfree_skb(skb);
1270}
acc1e7a3
JM		 1271
1272static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
1273 struct ieee80211_vif *vif)
1274{
b66851c3
TP		 1275 struct mac80211_hwsim_data *data = arg;
1276 struct ieee80211_hw *hw = data->hw;
1277 struct ieee80211_tx_info *info;
1278 struct ieee80211_rate *txrate;
1279 struct ieee80211_mgmt *mgmt;
acc1e7a3 1280 struct sk_buff *skb;
acc1e7a3 1281
8aa21e6f
JB		 1282 hwsim_check_magic(vif);
1283
55b39619 1284 if (vif->type != NL80211_IFTYPE_AP &&
2b2d7795
JB		 1285 vif->type != NL80211_IFTYPE_MESH_POINT &&
1286 vif->type != NL80211_IFTYPE_ADHOC)
acc1e7a3
JM		 1287 return;
1288
1289 skb = ieee80211_beacon_get(hw, vif);
1290 if (skb == NULL)
1291 return;
b66851c3 1292 info = IEEE80211_SKB_CB(skb);
81338410 1293 if (hw->flags & IEEE80211_HW_SUPPORTS_RC_TABLE)
1eb32179
KB		 1294 ieee80211_get_tx_rates(vif, NULL, skb,
1295 info->control.rates,
1296 ARRAY_SIZE(info->control.rates));
1297
b66851c3
TP		 1298 txrate = ieee80211_get_tx_rate(hw, info);
1299
1300 mgmt = (struct ieee80211_mgmt *) skb->data;
1301 /* fake header transmission time */
1302 data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
1303 mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
1304 data->tsf_offset +
1305 24 * 8 * 10 / txrate->bitrate);
7882513b 1306
e8261171 1307 mac80211_hwsim_tx_frame(hw, skb,
4bf88530 1308 rcu_dereference(vif->chanctx_conf)->def.chan);
0037db63
AO		 1309
1310 if (vif->csa_active && ieee80211_csa_is_complete(vif))
1311 ieee80211_csa_finish(vif);
acc1e7a3
JM		 1312}
1313
01e59e46
TP		 1314static enum hrtimer_restart
1315mac80211_hwsim_beacon(struct hrtimer *timer)
acc1e7a3 1316{
01e59e46
TP		 1317 struct mac80211_hwsim_data *data =
1318 container_of(timer, struct mac80211_hwsim_data,
1319 beacon_timer.timer);
1320 struct ieee80211_hw *hw = data->hw;
1321 u64 bcn_int = data->beacon_int;
1322 ktime_t next_bcn;
acc1e7a3 1323
4c4c671a 1324 if (!data->started)
01e59e46 1325 goto out;
acc1e7a3 1326
f248f105 1327 ieee80211_iterate_active_interfaces_atomic(
8b2c9824 1328 hw, IEEE80211_IFACE_ITER_NORMAL,
b66851c3 1329 mac80211_hwsim_beacon_tx, data);
acc1e7a3 1330
c51f8783
TP		 1331 /* beacon at new TBTT + beacon interval */
1332 if (data->bcn_delta) {
1333 bcn_int -= data->bcn_delta;
1334 data->bcn_delta = 0;
1335 }
1336
01e59e46
TP		 1337 next_bcn = ktime_add(hrtimer_get_expires(timer),
1338 ns_to_ktime(bcn_int * 1000));
1339 tasklet_hrtimer_start(&data->beacon_timer, next_bcn, HRTIMER_MODE_ABS);
1340out:
1341 return HRTIMER_NORESTART;
acc1e7a3
JM		 1342}
1343
675a0b04
KB		 1344static const char * const hwsim_chanwidths[] = {
1345 [NL80211_CHAN_WIDTH_20_NOHT] = "noht",
1346 [NL80211_CHAN_WIDTH_20] = "ht20",
1347 [NL80211_CHAN_WIDTH_40] = "ht40",
1348 [NL80211_CHAN_WIDTH_80] = "vht80",
1349 [NL80211_CHAN_WIDTH_80P80] = "vht80p80",
1350 [NL80211_CHAN_WIDTH_160] = "vht160",
0aaffa9b 1351};
acc1e7a3 1352
e8975581 1353static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
acc1e7a3
JM		 1354{
1355 struct mac80211_hwsim_data *data = hw->priv;
e8975581 1356 struct ieee80211_conf *conf = &hw->conf;
0f78231b
JB		 1357 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
1358 [IEEE80211_SMPS_AUTOMATIC] = "auto",
1359 [IEEE80211_SMPS_OFF] = "off",
1360 [IEEE80211_SMPS_STATIC] = "static",
1361 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
1362 };
1363
675a0b04
KB		 1364 if (conf->chandef.chan)
1365 wiphy_debug(hw->wiphy,
1366 "%s (freq=%d(%d - %d)/%s idle=%d ps=%d smps=%s)\n",
1367 __func__,
1368 conf->chandef.chan->center_freq,
1369 conf->chandef.center_freq1,
1370 conf->chandef.center_freq2,
1371 hwsim_chanwidths[conf->chandef.width],
1372 !!(conf->flags & IEEE80211_CONF_IDLE),
1373 !!(conf->flags & IEEE80211_CONF_PS),
1374 smps_modes[conf->smps_mode]);
1375 else
1376 wiphy_debug(hw->wiphy,
1377 "%s (freq=0 idle=%d ps=%d smps=%s)\n",
1378 __func__,
1379 !!(conf->flags & IEEE80211_CONF_IDLE),
1380 !!(conf->flags & IEEE80211_CONF_PS),
1381 smps_modes[conf->smps_mode]);
acc1e7a3 1382
70541839
JM		 1383 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1384
675a0b04 1385 data->channel = conf->chandef.chan;
e8261171 1386
361c3e04 1387 WARN_ON(data->channel && data->use_chanctx);
e8261171 1388
bdd7bd16 1389 data->power_level = conf->power_level;
4c4c671a 1390 if (!data->started || !data->beacon_int)
01e59e46
TP		 1391 tasklet_hrtimer_cancel(&data->beacon_timer);
1392 else if (!hrtimer_is_queued(&data->beacon_timer.timer)) {
c51f8783
TP		 1393 u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
1394 u32 bcn_int = data->beacon_int;
1395 u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1396
01e59e46 1397 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1398 ns_to_ktime(until_tbtt * 1000),
01e59e46
TP		 1399 HRTIMER_MODE_REL);
1400 }
acc1e7a3
JM		 1401
1402 return 0;
1403}
1404
1405
1406static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
1407 unsigned int changed_flags,
3ac64bee 1408 unsigned int *total_flags,u64 multicast)
acc1e7a3
JM		 1409{
1410 struct mac80211_hwsim_data *data = hw->priv;
1411
c96c31e4 1412 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 1413
1414 data->rx_filter = 0;
1415 if (*total_flags & FIF_PROMISC_IN_BSS)
1416 data->rx_filter |= FIF_PROMISC_IN_BSS;
1417 if (*total_flags & FIF_ALLMULTI)
1418 data->rx_filter |= FIF_ALLMULTI;
1419
1420 *total_flags = data->rx_filter;
1421}
1422
0bb861e6
JM		 1423static void mac80211_hwsim_bcn_en_iter(void *data, u8 *mac,
1424 struct ieee80211_vif *vif)
1425{
1426 unsigned int *count = data;
1427 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1428
1429 if (vp->bcn_en)
1430 (*count)++;
1431}
1432
8aa21e6f
JB		 1433static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
1434 struct ieee80211_vif *vif,
1435 struct ieee80211_bss_conf *info,
1436 u32 changed)
1437{
fc6971d4 1438 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
57c4d7b4 1439 struct mac80211_hwsim_data *data = hw->priv;
fc6971d4 1440
8aa21e6f 1441 hwsim_check_magic(vif);
fe63bfa3 1442
0bb861e6
JM		 1443 wiphy_debug(hw->wiphy, "%s(changed=0x%x vif->addr=%pM)\n",
1444 __func__, changed, vif->addr);
fe63bfa3 1445
2d0ddec5 1446 if (changed & BSS_CHANGED_BSSID) {
c96c31e4
JP		 1447 wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
1448 __func__, info->bssid);
2d0ddec5
JB		 1449 memcpy(vp->bssid, info->bssid, ETH_ALEN);
1450 }
1451
fe63bfa3 1452 if (changed & BSS_CHANGED_ASSOC) {
c96c31e4
JP		 1453 wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
1454 info->assoc, info->aid);
fc6971d4
JM		 1455 vp->assoc = info->assoc;
1456 vp->aid = info->aid;
fe63bfa3
JM		 1457 }
1458
57c4d7b4 1459 if (changed & BSS_CHANGED_BEACON_INT) {
c96c31e4 1460 wiphy_debug(hw->wiphy, " BCNINT: %d\n", info->beacon_int);
01e59e46
TP		 1461 data->beacon_int = info->beacon_int * 1024;
1462 }
1463
1464 if (changed & BSS_CHANGED_BEACON_ENABLED) {
1465 wiphy_debug(hw->wiphy, " BCN EN: %d\n", info->enable_beacon);
0bb861e6 1466 vp->bcn_en = info->enable_beacon;
01e59e46
TP		 1467 if (data->started &&
1468 !hrtimer_is_queued(&data->beacon_timer.timer) &&
1469 info->enable_beacon) {
c51f8783
TP		 1470 u64 tsf, until_tbtt;
1471 u32 bcn_int;
01e59e46
TP		 1472 if (WARN_ON(!data->beacon_int))
1473 data->beacon_int = 1000 * 1024;
c51f8783
TP		 1474 tsf = mac80211_hwsim_get_tsf(hw, vif);
1475 bcn_int = data->beacon_int;
1476 until_tbtt = bcn_int - do_div(tsf, bcn_int);
01e59e46 1477 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1478 ns_to_ktime(until_tbtt * 1000),
01e59e46 1479 HRTIMER_MODE_REL);
0bb861e6
JM		 1480 } else if (!info->enable_beacon) {
1481 unsigned int count = 0;
cdb1b805 1482 ieee80211_iterate_active_interfaces_atomic(
0bb861e6
JM		 1483 data->hw, IEEE80211_IFACE_ITER_NORMAL,
1484 mac80211_hwsim_bcn_en_iter, &count);
1485 wiphy_debug(hw->wiphy, " beaconing vifs remaining: %u",
1486 count);
1487 if (count == 0)
1488 tasklet_hrtimer_cancel(&data->beacon_timer);
1489 }
57c4d7b4
JB		 1490 }
1491
fe63bfa3 1492 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
c96c31e4
JP		 1493 wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
1494 info->use_cts_prot);
fe63bfa3
JM		 1495 }
1496
1497 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
c96c31e4
JP		 1498 wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
1499 info->use_short_preamble);
fe63bfa3
JM		 1500 }
1501
1502 if (changed & BSS_CHANGED_ERP_SLOT) {
c96c31e4 1503 wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
fe63bfa3
JM		 1504 }
1505
1506 if (changed & BSS_CHANGED_HT) {
4bf88530
JB		 1507 wiphy_debug(hw->wiphy, " HT: op_mode=0x%x\n",
1508 info->ht_operation_mode);
fe63bfa3
JM		 1509 }
1510
1511 if (changed & BSS_CHANGED_BASIC_RATES) {
c96c31e4
JP		 1512 wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
1513 (unsigned long long) info->basic_rates);
fe63bfa3 1514 }
cbc668a7
JB		 1515
1516 if (changed & BSS_CHANGED_TXPOWER)
1517 wiphy_debug(hw->wiphy, " TX Power: %d dBm\n", info->txpower);
8aa21e6f
JB		 1518}
1519
1d669cbf
JB		 1520static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
1521 struct ieee80211_vif *vif,
1522 struct ieee80211_sta *sta)
1523{
1524 hwsim_check_magic(vif);
1525 hwsim_set_sta_magic(sta);
1526
1527 return 0;
1528}
1529
1530static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
1531 struct ieee80211_vif *vif,
1532 struct ieee80211_sta *sta)
1533{
1534 hwsim_check_magic(vif);
1535 hwsim_clear_sta_magic(sta);
1536
1537 return 0;
1538}
1539
8aa21e6f
JB		 1540static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
1541 struct ieee80211_vif *vif,
17741cdc
JB		 1542 enum sta_notify_cmd cmd,
1543 struct ieee80211_sta *sta)
8aa21e6f
JB		 1544{
1545 hwsim_check_magic(vif);
1d669cbf 1546
81c06523 1547 switch (cmd) {
89fad578
CL		 1548 case STA_NOTIFY_SLEEP:
1549 case STA_NOTIFY_AWAKE:
1550 /* TODO: make good use of these flags */
1551 break;
1d669cbf
JB		 1552 default:
1553 WARN(1, "Invalid sta notify: %d\n", cmd);
1554 break;
81c06523
JB		 1555 }
1556}
1557
1558static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
1559 struct ieee80211_sta *sta,
1560 bool set)
1561{
1562 hwsim_check_sta_magic(sta);
1563 return 0;
8aa21e6f 1564}
acc1e7a3 1565
1e898ff8 1566static int mac80211_hwsim_conf_tx(
8a3a3c85
EP		 1567 struct ieee80211_hw *hw,
1568 struct ieee80211_vif *vif, u16 queue,
1e898ff8
JM		 1569 const struct ieee80211_tx_queue_params *params)
1570{
c96c31e4
JP		 1571 wiphy_debug(hw->wiphy,
1572 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1573 __func__, queue,
1574 params->txop, params->cw_min,
1575 params->cw_max, params->aifs);
1e898ff8
JM		 1576 return 0;
1577}
1578
1289723e
HS		 1579static int mac80211_hwsim_get_survey(
1580 struct ieee80211_hw *hw, int idx,
1581 struct survey_info *survey)
1582{
1583 struct ieee80211_conf *conf = &hw->conf;
1584
c96c31e4 1585 wiphy_debug(hw->wiphy, "%s (idx=%d)\n", __func__, idx);
1289723e
HS		 1586
1587 if (idx != 0)
1588 return -ENOENT;
1589
1590 /* Current channel */
675a0b04 1591 survey->channel = conf->chandef.chan;
1289723e
HS		 1592
1593 /*
1594 * Magically conjured noise level --- this is only ok for simulated hardware.
1595 *
1596 * A real driver which cannot determine the real channel noise MUST NOT
1597 * report any noise, especially not a magically conjured one :-)
1598 */
1599 survey->filled = SURVEY_INFO_NOISE_DBM;
1600 survey->noise = -92;
1601
1602 return 0;
1603}
1604
aff89a9b
JB		 1605#ifdef CONFIG_NL80211_TESTMODE
1606/*
1607 * This section contains example code for using netlink
1608 * attributes with the testmode command in nl80211.
1609 */
1610
1611/* These enums need to be kept in sync with userspace */
1612enum hwsim_testmode_attr {
1613 __HWSIM_TM_ATTR_INVALID = 0,
1614 HWSIM_TM_ATTR_CMD = 1,
1615 HWSIM_TM_ATTR_PS = 2,
1616
1617 /* keep last */
1618 __HWSIM_TM_ATTR_AFTER_LAST,
1619 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1620};
1621
1622enum hwsim_testmode_cmd {
1623 HWSIM_TM_CMD_SET_PS = 0,
1624 HWSIM_TM_CMD_GET_PS = 1,
4d6d0ae2
JB		 1625 HWSIM_TM_CMD_STOP_QUEUES = 2,
1626 HWSIM_TM_CMD_WAKE_QUEUES = 3,
aff89a9b
JB		 1627};
1628
1629static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1630 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1631 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1632};
1633
5bc38193 1634static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
52981cd7 1635 struct ieee80211_vif *vif,
5bc38193 1636 void *data, int len)
aff89a9b
JB		 1637{
1638 struct mac80211_hwsim_data *hwsim = hw->priv;
1639 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1640 struct sk_buff *skb;
1641 int err, ps;
1642
1643 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
1644 hwsim_testmode_policy);
1645 if (err)
1646 return err;
1647
1648 if (!tb[HWSIM_TM_ATTR_CMD])
1649 return -EINVAL;
1650
1651 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1652 case HWSIM_TM_CMD_SET_PS:
1653 if (!tb[HWSIM_TM_ATTR_PS])
1654 return -EINVAL;
1655 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1656 return hwsim_fops_ps_write(hwsim, ps);
1657 case HWSIM_TM_CMD_GET_PS:
1658 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1659 nla_total_size(sizeof(u32)));
1660 if (!skb)
1661 return -ENOMEM;
633c9389
DM		 1662 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
1663 goto nla_put_failure;
aff89a9b 1664 return cfg80211_testmode_reply(skb);
4d6d0ae2
JB		 1665 case HWSIM_TM_CMD_STOP_QUEUES:
1666 ieee80211_stop_queues(hw);
1667 return 0;
1668 case HWSIM_TM_CMD_WAKE_QUEUES:
1669 ieee80211_wake_queues(hw);
1670 return 0;
aff89a9b
JB		 1671 default:
1672 return -EOPNOTSUPP;
1673 }
1674
1675 nla_put_failure:
1676 kfree_skb(skb);
1677 return -ENOBUFS;
1678}
1679#endif
1680
8b73d13a
JB		 1681static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1682 struct ieee80211_vif *vif,
1683 enum ieee80211_ampdu_mlme_action action,
0b01f030
JB		 1684 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
1685 u8 buf_size)
8b73d13a
JB		 1686{
1687 switch (action) {
1688 case IEEE80211_AMPDU_TX_START:
1689 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1690 break;
18b559d5
JB		 1691 case IEEE80211_AMPDU_TX_STOP_CONT:
1692 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1693 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
8b73d13a
JB		 1694 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1695 break;
1696 case IEEE80211_AMPDU_TX_OPERATIONAL:
1697 break;
1698 case IEEE80211_AMPDU_RX_START:
1699 case IEEE80211_AMPDU_RX_STOP:
1700 break;
1701 default:
1702 return -EOPNOTSUPP;
1703 }
1704
1705 return 0;
1706}
1707
77be2c54
EG		 1708static void mac80211_hwsim_flush(struct ieee80211_hw *hw,
1709 struct ieee80211_vif *vif,
1710 u32 queues, bool drop)
a80f7c0b 1711{
7882513b 1712 /* Not implemented, queues only on kernel side */
a80f7c0b
JB		 1713}
1714
e8261171 1715static void hw_scan_work(struct work_struct *work)
69068036 1716{
e8261171
JB		 1717 struct mac80211_hwsim_data *hwsim =
1718 container_of(work, struct mac80211_hwsim_data, hw_scan.work);
1719 struct cfg80211_scan_request *req = hwsim->hw_scan_request;
1720 int dwell, i;
69068036 1721
e8261171
JB		 1722 mutex_lock(&hwsim->mutex);
1723 if (hwsim->scan_chan_idx >= req->n_channels) {
1724 wiphy_debug(hwsim->hw->wiphy, "hw scan complete\n");
1725 ieee80211_scan_completed(hwsim->hw, false);
1726 hwsim->hw_scan_request = NULL;
1727 hwsim->hw_scan_vif = NULL;
1728 hwsim->tmp_chan = NULL;
1729 mutex_unlock(&hwsim->mutex);
1730 return;
1731 }
1732
1733 wiphy_debug(hwsim->hw->wiphy, "hw scan %d MHz\n",
1734 req->channels[hwsim->scan_chan_idx]->center_freq);
1735
1736 hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
8fe02e16 1737 if (hwsim->tmp_chan->flags & IEEE80211_CHAN_NO_IR ||
e8261171
JB		 1738 !req->n_ssids) {
1739 dwell = 120;
1740 } else {
1741 dwell = 30;
1742 /* send probes */
1743 for (i = 0; i < req->n_ssids; i++) {
1744 struct sk_buff *probe;
1745
1746 probe = ieee80211_probereq_get(hwsim->hw,
1747 hwsim->hw_scan_vif,
1748 req->ssids[i].ssid,
1749 req->ssids[i].ssid_len,
b9a9ada1 1750 req->ie_len);
e8261171
JB		 1751 if (!probe)
1752 continue;
b9a9ada1
JB		 1753
1754 if (req->ie_len)
1755 memcpy(skb_put(probe, req->ie_len), req->ie,
1756 req->ie_len);
1757
e8261171
JB		 1758 local_bh_disable();
1759 mac80211_hwsim_tx_frame(hwsim->hw, probe,
1760 hwsim->tmp_chan);
1761 local_bh_enable();
1762 }
1763 }
1764 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
1765 msecs_to_jiffies(dwell));
1766 hwsim->scan_chan_idx++;
1767 mutex_unlock(&hwsim->mutex);
69068036
JB		 1768}
1769
1770static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
a060bbfe 1771 struct ieee80211_vif *vif,
c56ef672 1772 struct ieee80211_scan_request *hw_req)
69068036 1773{
e8261171 1774 struct mac80211_hwsim_data *hwsim = hw->priv;
c56ef672 1775 struct cfg80211_scan_request *req = &hw_req->req;
69068036 1776
e8261171
JB		 1777 mutex_lock(&hwsim->mutex);
1778 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1779 mutex_unlock(&hwsim->mutex);
1780 return -EBUSY;
1781 }
1782 hwsim->hw_scan_request = req;
1783 hwsim->hw_scan_vif = vif;
1784 hwsim->scan_chan_idx = 0;
1785 mutex_unlock(&hwsim->mutex);
69068036 1786
e8261171 1787 wiphy_debug(hw->wiphy, "hwsim hw_scan request\n");
69068036 1788
e8261171 1789 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
69068036
JB		 1790
1791 return 0;
1792}
1793
e8261171
JB		 1794static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
1795 struct ieee80211_vif *vif)
1796{
1797 struct mac80211_hwsim_data *hwsim = hw->priv;
1798
1799 wiphy_debug(hw->wiphy, "hwsim cancel_hw_scan\n");
1800
1801 cancel_delayed_work_sync(&hwsim->hw_scan);
1802
1803 mutex_lock(&hwsim->mutex);
1804 ieee80211_scan_completed(hwsim->hw, true);
1805 hwsim->tmp_chan = NULL;
1806 hwsim->hw_scan_request = NULL;
1807 hwsim->hw_scan_vif = NULL;
1808 mutex_unlock(&hwsim->mutex);
1809}
1810
f74cb0f7
LR		 1811static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw)
1812{
1813 struct mac80211_hwsim_data *hwsim = hw->priv;
1814
1815 mutex_lock(&hwsim->mutex);
1816
1817 if (hwsim->scanning) {
1818 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
1819 goto out;
1820 }
1821
1822 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
1823 hwsim->scanning = true;
1824
1825out:
1826 mutex_unlock(&hwsim->mutex);
1827}
1828
1829static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw)
1830{
1831 struct mac80211_hwsim_data *hwsim = hw->priv;
1832
1833 mutex_lock(&hwsim->mutex);
1834
1835 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
23ff98fc 1836 hwsim->scanning = false;
f74cb0f7
LR		 1837
1838 mutex_unlock(&hwsim->mutex);
1839}
1840
e8261171
JB		 1841static void hw_roc_done(struct work_struct *work)
1842{
1843 struct mac80211_hwsim_data *hwsim =
1844 container_of(work, struct mac80211_hwsim_data, roc_done.work);
1845
1846 mutex_lock(&hwsim->mutex);
1847 ieee80211_remain_on_channel_expired(hwsim->hw);
1848 hwsim->tmp_chan = NULL;
1849 mutex_unlock(&hwsim->mutex);
1850
1851 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC expired\n");
1852}
1853
1854static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
49884568 1855 struct ieee80211_vif *vif,
e8261171 1856 struct ieee80211_channel *chan,
d339d5ca
IP		 1857 int duration,
1858 enum ieee80211_roc_type type)
e8261171
JB		 1859{
1860 struct mac80211_hwsim_data *hwsim = hw->priv;
1861
1862 mutex_lock(&hwsim->mutex);
1863 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1864 mutex_unlock(&hwsim->mutex);
1865 return -EBUSY;
1866 }
1867
1868 hwsim->tmp_chan = chan;
1869 mutex_unlock(&hwsim->mutex);
1870
1871 wiphy_debug(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
1872 chan->center_freq, duration);
1873
1874 ieee80211_ready_on_channel(hw);
1875
1876 ieee80211_queue_delayed_work(hw, &hwsim->roc_done,
1877 msecs_to_jiffies(duration));
1878 return 0;
1879}
1880
1881static int mac80211_hwsim_croc(struct ieee80211_hw *hw)
1882{
1883 struct mac80211_hwsim_data *hwsim = hw->priv;
1884
1885 cancel_delayed_work_sync(&hwsim->roc_done);
1886
1887 mutex_lock(&hwsim->mutex);
1888 hwsim->tmp_chan = NULL;
1889 mutex_unlock(&hwsim->mutex);
1890
1891 wiphy_debug(hw->wiphy, "hwsim ROC canceled\n");
1892
1893 return 0;
1894}
1895
1896static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
1897 struct ieee80211_chanctx_conf *ctx)
1898{
1899 hwsim_set_chanctx_magic(ctx);
4bf88530
JB		 1900 wiphy_debug(hw->wiphy,
1901 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1902 ctx->def.chan->center_freq, ctx->def.width,
1903 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1904 return 0;
1905}
1906
1907static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
1908 struct ieee80211_chanctx_conf *ctx)
1909{
4bf88530
JB		 1910 wiphy_debug(hw->wiphy,
1911 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1912 ctx->def.chan->center_freq, ctx->def.width,
1913 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1914 hwsim_check_chanctx_magic(ctx);
1915 hwsim_clear_chanctx_magic(ctx);
1916}
1917
1918static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
1919 struct ieee80211_chanctx_conf *ctx,
1920 u32 changed)
1921{
1922 hwsim_check_chanctx_magic(ctx);
4bf88530
JB		 1923 wiphy_debug(hw->wiphy,
1924 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1925 ctx->def.chan->center_freq, ctx->def.width,
1926 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1927}
1928
1929static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
1930 struct ieee80211_vif *vif,
1931 struct ieee80211_chanctx_conf *ctx)
1932{
1933 hwsim_check_magic(vif);
1934 hwsim_check_chanctx_magic(ctx);
1935
1936 return 0;
1937}
1938
1939static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
1940 struct ieee80211_vif *vif,
1941 struct ieee80211_chanctx_conf *ctx)
1942{
1943 hwsim_check_magic(vif);
1944 hwsim_check_chanctx_magic(ctx);
1945}
1946
2155c3f8
BG		 1947static const char mac80211_hwsim_gstrings_stats[][ETH_GSTRING_LEN] = {
1948 "tx_pkts_nic",
1949 "tx_bytes_nic",
1950 "rx_pkts_nic",
1951 "rx_bytes_nic",
1952 "d_tx_dropped",
1953 "d_tx_failed",
1954 "d_ps_mode",
1955 "d_group",
1956 "d_tx_power",
1957};
1958
1959#define MAC80211_HWSIM_SSTATS_LEN ARRAY_SIZE(mac80211_hwsim_gstrings_stats)
1960
1961static void mac80211_hwsim_get_et_strings(struct ieee80211_hw *hw,
1962 struct ieee80211_vif *vif,
1963 u32 sset, u8 *data)
1964{
1965 if (sset == ETH_SS_STATS)
1966 memcpy(data, *mac80211_hwsim_gstrings_stats,
1967 sizeof(mac80211_hwsim_gstrings_stats));
1968}
1969
1970static int mac80211_hwsim_get_et_sset_count(struct ieee80211_hw *hw,
1971 struct ieee80211_vif *vif, int sset)
1972{
1973 if (sset == ETH_SS_STATS)
1974 return MAC80211_HWSIM_SSTATS_LEN;
1975 return 0;
1976}
1977
1978static void mac80211_hwsim_get_et_stats(struct ieee80211_hw *hw,
1979 struct ieee80211_vif *vif,
1980 struct ethtool_stats *stats, u64 *data)
1981{
1982 struct mac80211_hwsim_data *ar = hw->priv;
1983 int i = 0;
1984
1985 data[i++] = ar->tx_pkts;
1986 data[i++] = ar->tx_bytes;
1987 data[i++] = ar->rx_pkts;
1988 data[i++] = ar->rx_bytes;
1989 data[i++] = ar->tx_dropped;
1990 data[i++] = ar->tx_failed;
1991 data[i++] = ar->ps;
1992 data[i++] = ar->group;
1993 data[i++] = ar->power_level;
1994
1995 WARN_ON(i != MAC80211_HWSIM_SSTATS_LEN);
1996}
1997
38ed5048 1998static const struct ieee80211_ops mac80211_hwsim_ops = {
acc1e7a3
JM		 1999 .tx = mac80211_hwsim_tx,
2000 .start = mac80211_hwsim_start,
2001 .stop = mac80211_hwsim_stop,
2002 .add_interface = mac80211_hwsim_add_interface,
c35d0270 2003 .change_interface = mac80211_hwsim_change_interface,
acc1e7a3
JM		 2004 .remove_interface = mac80211_hwsim_remove_interface,
2005 .config = mac80211_hwsim_config,
2006 .configure_filter = mac80211_hwsim_configure_filter,
8aa21e6f 2007 .bss_info_changed = mac80211_hwsim_bss_info_changed,
1d669cbf
JB		 2008 .sta_add = mac80211_hwsim_sta_add,
2009 .sta_remove = mac80211_hwsim_sta_remove,
8aa21e6f 2010 .sta_notify = mac80211_hwsim_sta_notify,
81c06523 2011 .set_tim = mac80211_hwsim_set_tim,
1e898ff8 2012 .conf_tx = mac80211_hwsim_conf_tx,
1289723e 2013 .get_survey = mac80211_hwsim_get_survey,
aff89a9b 2014 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
8b73d13a 2015 .ampdu_action = mac80211_hwsim_ampdu_action,
f74cb0f7
LR		 2016 .sw_scan_start = mac80211_hwsim_sw_scan,
2017 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
a80f7c0b 2018 .flush = mac80211_hwsim_flush,
12ce8ba3
JC		 2019 .get_tsf = mac80211_hwsim_get_tsf,
2020 .set_tsf = mac80211_hwsim_set_tsf,
2155c3f8
BG		 2021 .get_et_sset_count = mac80211_hwsim_get_et_sset_count,
2022 .get_et_stats = mac80211_hwsim_get_et_stats,
2023 .get_et_strings = mac80211_hwsim_get_et_strings,
acc1e7a3
JM		 2024};
2025
38ed5048 2026static struct ieee80211_ops mac80211_hwsim_mchan_ops;
acc1e7a3 2027
26b0e411
JB		 2028static int mac80211_hwsim_create_radio(int channels, const char *reg_alpha2,
2029 const struct ieee80211_regdomain *regd,
361c3e04 2030 bool reg_strict, bool p2p_device,
e9ed49bf 2031 bool use_chanctx, bool destroy_on_close,
9a0cb89a
BG		 2032 u32 portid, const char *hwname,
2033 bool no_vif)
acc1e7a3 2034{
de0421d5
JB		 2035 int err;
2036 u8 addr[ETH_ALEN];
e4afb603 2037 struct mac80211_hwsim_data *data;
de0421d5
JB		 2038 struct ieee80211_hw *hw;
2039 enum ieee80211_band band;
2040 const struct ieee80211_ops *ops = &mac80211_hwsim_ops;
2041 int idx;
0e057d73 2042
361c3e04
LC		 2043 if (WARN_ON(channels > 1 && !use_chanctx))
2044 return -EINVAL;
2045
0e057d73 2046 spin_lock_bh(&hwsim_radio_lock);
de0421d5 2047 idx = hwsim_radio_idx++;
0e057d73
JB		 2048 spin_unlock_bh(&hwsim_radio_lock);
2049
361c3e04 2050 if (use_chanctx)
de0421d5 2051 ops = &mac80211_hwsim_mchan_ops;
5cd8926b 2052 hw = ieee80211_alloc_hw_nm(sizeof(*data), ops, hwname);
de0421d5
JB		 2053 if (!hw) {
2054 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw failed\n");
2055 err = -ENOMEM;
2056 goto failed;
2057 }
2058 data = hw->priv;
2059 data->hw = hw;
acc1e7a3 2060
de0421d5
JB		 2061 data->dev = device_create(hwsim_class, NULL, 0, hw, "hwsim%d", idx);
2062 if (IS_ERR(data->dev)) {
2063 printk(KERN_DEBUG
2064 "mac80211_hwsim: device_create failed (%ld)\n",
2065 PTR_ERR(data->dev));
2066 err = -ENOMEM;
2067 goto failed_drvdata;
2068 }
2069 data->dev->driver = &mac80211_hwsim_driver.driver;
2070 err = device_bind_driver(data->dev);
2071 if (err != 0) {
2072 printk(KERN_DEBUG "mac80211_hwsim: device_bind_driver failed (%d)\n",
2073 err);
2074 goto failed_hw;
acc1e7a3 2075 }
acc1e7a3 2076
de0421d5 2077 skb_queue_head_init(&data->pending);
acc1e7a3 2078
de0421d5
JB		 2079 SET_IEEE80211_DEV(hw, data->dev);
2080 memset(addr, 0, ETH_ALEN);
2081 addr[0] = 0x02;
2082 addr[3] = idx >> 8;
2083 addr[4] = idx;
2084 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
2085 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
2086 data->addresses[1].addr[0] |= 0x40;
2087 hw->wiphy->n_addresses = 2;
2088 hw->wiphy->addresses = data->addresses;
fc6971d4 2089
de0421d5 2090 data->channels = channels;
361c3e04 2091 data->use_chanctx = use_chanctx;
bc791098 2092 data->idx = idx;
e9ed49bf
JR		 2093 data->destroy_on_close = destroy_on_close;
2094 data->portid = portid;
fc6971d4 2095
361c3e04 2096 if (data->use_chanctx) {
de0421d5
JB		 2097 hw->wiphy->max_scan_ssids = 255;
2098 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
2099 hw->wiphy->max_remain_on_channel_duration = 1000;
2100 /* For channels > 1 DFS is not allowed */
2101 hw->wiphy->n_iface_combinations = 1;
2102 hw->wiphy->iface_combinations = &data->if_combination;
8c66a3d9
JB		 2103 if (p2p_device)
2104 data->if_combination = hwsim_if_comb_p2p_dev[0];
2105 else
2106 data->if_combination = hwsim_if_comb[0];
b59ec8dd 2107 data->if_combination.num_different_channels = data->channels;
8c66a3d9
JB		 2108 } else if (p2p_device) {
2109 hw->wiphy->iface_combinations = hwsim_if_comb_p2p_dev;
2110 hw->wiphy->n_iface_combinations =
2111 ARRAY_SIZE(hwsim_if_comb_p2p_dev);
de0421d5
JB		 2112 } else {
2113 hw->wiphy->iface_combinations = hwsim_if_comb;
2114 hw->wiphy->n_iface_combinations = ARRAY_SIZE(hwsim_if_comb);
2115 }
acc1e7a3 2116
de0421d5
JB		 2117 INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
2118 INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
7882513b 2119
de0421d5
JB		 2120 hw->queues = 5;
2121 hw->offchannel_tx_hw_queue = 4;
2122 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2123 BIT(NL80211_IFTYPE_AP) |
2124 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2125 BIT(NL80211_IFTYPE_P2P_GO) |
2126 BIT(NL80211_IFTYPE_ADHOC) |
8c66a3d9
JB		 2127 BIT(NL80211_IFTYPE_MESH_POINT);
2128
2129 if (p2p_device)
2130 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_DEVICE);
fc6971d4 2131
de0421d5
JB		 2132 hw->flags = IEEE80211_HW_MFP_CAPABLE |
2133 IEEE80211_HW_SIGNAL_DBM |
de0421d5
JB		 2134 IEEE80211_HW_AMPDU_AGGREGATION |
2135 IEEE80211_HW_WANT_MONITOR_VIF |
2136 IEEE80211_HW_QUEUE_CONTROL |
0037db63
AO		 2137 IEEE80211_HW_SUPPORTS_HT_CCK_RATES |
2138 IEEE80211_HW_CHANCTX_STA_CSA;
de0421d5
JB		 2139 if (rctbl)
2140 hw->flags |= IEEE80211_HW_SUPPORTS_RC_TABLE;
fc6971d4 2141
de0421d5
JB		 2142 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2143 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
0037db63
AO		 2144 WIPHY_FLAG_AP_UAPSD |
2145 WIPHY_FLAG_HAS_CHANNEL_SWITCH;
0d8614b4
EP		 2146 hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR |
2147 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
2148 NL80211_FEATURE_STATIC_SMPS |
2149 NL80211_FEATURE_DYNAMIC_SMPS;
fc6971d4 2150
de0421d5
JB		 2151 /* ask mac80211 to reserve space for magic */
2152 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
2153 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
2154 hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
fc6971d4 2155
de0421d5
JB		 2156 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
2157 sizeof(hwsim_channels_2ghz));
2158 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
2159 sizeof(hwsim_channels_5ghz));
2160 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
7882513b 2161
de0421d5
JB		 2162 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
2163 struct ieee80211_supported_band *sband = &data->bands[band];
2164 switch (band) {
2165 case IEEE80211_BAND_2GHZ:
2166 sband->channels = data->channels_2ghz;
2167 sband->n_channels = ARRAY_SIZE(hwsim_channels_2ghz);
2168 sband->bitrates = data->rates;
2169 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
2170 break;
2171 case IEEE80211_BAND_5GHZ:
2172 sband->channels = data->channels_5ghz;
2173 sband->n_channels = ARRAY_SIZE(hwsim_channels_5ghz);
2174 sband->bitrates = data->rates + 4;
2175 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
2176 break;
2177 default:
2178 continue;
2179 }
acc1e7a3 2180
de0421d5
JB		 2181 sband->ht_cap.ht_supported = true;
2182 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
2183 IEEE80211_HT_CAP_GRN_FLD |
e49786db 2184 IEEE80211_HT_CAP_SGI_20 |
de0421d5
JB		 2185 IEEE80211_HT_CAP_SGI_40 |
2186 IEEE80211_HT_CAP_DSSSCCK40;
2187 sband->ht_cap.ampdu_factor = 0x3;
2188 sband->ht_cap.ampdu_density = 0x6;
2189 memset(&sband->ht_cap.mcs, 0,
2190 sizeof(sband->ht_cap.mcs));
2191 sband->ht_cap.mcs.rx_mask[0] = 0xff;
2192 sband->ht_cap.mcs.rx_mask[1] = 0xff;
2193 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
fc6971d4 2194
de0421d5 2195 hw->wiphy->bands[band] = sband;
fc6971d4 2196
de0421d5
JB		 2197 sband->vht_cap.vht_supported = true;
2198 sband->vht_cap.cap =
2199 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
2200 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
2201 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ |
2202 IEEE80211_VHT_CAP_RXLDPC |
2203 IEEE80211_VHT_CAP_SHORT_GI_80 |
2204 IEEE80211_VHT_CAP_SHORT_GI_160 |
2205 IEEE80211_VHT_CAP_TXSTBC |
2206 IEEE80211_VHT_CAP_RXSTBC_1 |
2207 IEEE80211_VHT_CAP_RXSTBC_2 |
2208 IEEE80211_VHT_CAP_RXSTBC_3 |
2209 IEEE80211_VHT_CAP_RXSTBC_4 |
2210 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
2211 sband->vht_cap.vht_mcs.rx_mcs_map =
2212 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_8 << 0 |
2213 IEEE80211_VHT_MCS_SUPPORT_0_8 << 2 |
2214 IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
2215 IEEE80211_VHT_MCS_SUPPORT_0_8 << 6 |
2216 IEEE80211_VHT_MCS_SUPPORT_0_8 << 8 |
2217 IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
2218 IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
2219 IEEE80211_VHT_MCS_SUPPORT_0_8 << 14);
2220 sband->vht_cap.vht_mcs.tx_mcs_map =
2221 sband->vht_cap.vht_mcs.rx_mcs_map;
2222 }
acc1e7a3 2223
de0421d5
JB		 2224 /* By default all radios belong to the first group */
2225 data->group = 1;
2226 mutex_init(&data->mutex);
fc6971d4 2227
de0421d5
JB		 2228 /* Enable frame retransmissions for lossy channels */
2229 hw->max_rates = 4;
2230 hw->max_rate_tries = 11;
fc6971d4 2231
26b0e411
JB		 2232 if (reg_strict)
2233 hw->wiphy->regulatory_flags |= REGULATORY_STRICT_REG;
2234 if (regd) {
2235 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
2236 wiphy_apply_custom_regulatory(hw->wiphy, regd);
2237 /* give the regulatory workqueue a chance to run */
2238 schedule_timeout_interruptible(1);
2239 }
fc6971d4 2240
9a0cb89a
BG		 2241 if (no_vif)
2242 hw->flags |= IEEE80211_HW_NO_AUTO_VIF;
2243
de0421d5
JB		 2244 err = ieee80211_register_hw(hw);
2245 if (err < 0) {
2246 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_register_hw failed (%d)\n",
2247 err);
2248 goto failed_hw;
2249 }
fc6971d4 2250
de0421d5 2251 wiphy_debug(hw->wiphy, "hwaddr %pM registered\n", hw->wiphy->perm_addr);
fc6971d4 2252
26b0e411
JB		 2253 if (reg_alpha2)
2254 regulatory_hint(hw->wiphy, reg_alpha2);
7882513b 2255
de0421d5
JB		 2256 data->debugfs = debugfs_create_dir("hwsim", hw->wiphy->debugfsdir);
2257 debugfs_create_file("ps", 0666, data->debugfs, data, &hwsim_fops_ps);
2258 debugfs_create_file("group", 0666, data->debugfs, data,
2259 &hwsim_fops_group);
361c3e04 2260 if (!data->use_chanctx)
de0421d5
JB		 2261 debugfs_create_file("dfs_simulate_radar", 0222,
2262 data->debugfs,
2263 data, &hwsim_simulate_radar);
fc6971d4 2264
de0421d5
JB		 2265 tasklet_hrtimer_init(&data->beacon_timer,
2266 mac80211_hwsim_beacon,
2267 CLOCK_MONOTONIC_RAW, HRTIMER_MODE_ABS);
fc6971d4 2268
de0421d5
JB		 2269 spin_lock_bh(&hwsim_radio_lock);
2270 list_add_tail(&data->list, &hwsim_radios);
2271 spin_unlock_bh(&hwsim_radio_lock);
fc6971d4 2272
bc791098 2273 return idx;
fc6971d4 2274
de0421d5
JB		 2275failed_hw:
2276 device_unregister(data->dev);
2277failed_drvdata:
2278 ieee80211_free_hw(hw);
2279failed:
2280 return err;
fc6971d4
JM		 2281}
2282
de0421d5 2283static void mac80211_hwsim_destroy_radio(struct mac80211_hwsim_data *data)
fc6971d4 2284{
de0421d5
JB		 2285 debugfs_remove_recursive(data->debugfs);
2286 ieee80211_unregister_hw(data->hw);
2287 device_release_driver(data->dev);
2288 device_unregister(data->dev);
2289 ieee80211_free_hw(data->hw);
fc6971d4
JM		 2290}
2291
de0421d5 2292static void mac80211_hwsim_free(void)
fc6971d4 2293{
de0421d5 2294 struct mac80211_hwsim_data *data;
fc6971d4 2295
de0421d5
JB		 2296 spin_lock_bh(&hwsim_radio_lock);
2297 while ((data = list_first_entry_or_null(&hwsim_radios,
2298 struct mac80211_hwsim_data,
2299 list))) {
2300 list_del(&data->list);
2301 spin_unlock_bh(&hwsim_radio_lock);
2302 mac80211_hwsim_destroy_radio(data);
2303 spin_lock_bh(&hwsim_radio_lock);
fc6971d4 2304 }
de0421d5
JB		 2305 spin_unlock_bh(&hwsim_radio_lock);
2306 class_destroy(hwsim_class);
bba05e3d
JD		 2307}
2308
de0421d5
JB		 2309static const struct net_device_ops hwsim_netdev_ops = {
2310 .ndo_start_xmit = hwsim_mon_xmit,
2311 .ndo_change_mtu = eth_change_mtu,
2312 .ndo_set_mac_address = eth_mac_addr,
2313 .ndo_validate_addr = eth_validate_addr,
2314};
73606d00 2315
de0421d5 2316static void hwsim_mon_setup(struct net_device *dev)
73606d00 2317{
de0421d5
JB		 2318 dev->netdev_ops = &hwsim_netdev_ops;
2319 dev->destructor = free_netdev;
2320 ether_setup(dev);
2321 dev->tx_queue_len = 0;
2322 dev->type = ARPHRD_IEEE80211_RADIOTAP;
2323 memset(dev->dev_addr, 0, ETH_ALEN);
2324 dev->dev_addr[0] = 0x12;
73606d00
DW		 2325}
2326
9ddd12af 2327static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(const u8 *addr)
7882513b
JL		 2328{
2329 struct mac80211_hwsim_data *data;
2330 bool _found = false;
2331
2332 spin_lock_bh(&hwsim_radio_lock);
2333 list_for_each_entry(data, &hwsim_radios, list) {
9ddd12af 2334 if (memcmp(data->addresses[1].addr, addr, ETH_ALEN) == 0) {
7882513b
JL		 2335 _found = true;
2336 break;
2337 }
2338 }
2339 spin_unlock_bh(&hwsim_radio_lock);
2340
2341 if (!_found)
2342 return NULL;
2343
2344 return data;
2345}
2346
2347static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
2348 struct genl_info *info)
2349{
2350
2351 struct ieee80211_hdr *hdr;
2352 struct mac80211_hwsim_data *data2;
2353 struct ieee80211_tx_info *txi;
2354 struct hwsim_tx_rate *tx_attempts;
d0f718c1 2355 unsigned long ret_skb_ptr;
7882513b 2356 struct sk_buff *skb, *tmp;
9ddd12af 2357 const u8 *src;
7882513b 2358 unsigned int hwsim_flags;
7882513b
JL		 2359 int i;
2360 bool found = false;
2361
85ca8fc7
JB		 2362 if (info->snd_portid != wmediumd_portid)
2363 return -EINVAL;
2364
7882513b 2365 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
9ddd12af
JB		 2366 !info->attrs[HWSIM_ATTR_FLAGS] ||
2367 !info->attrs[HWSIM_ATTR_COOKIE] ||
2368 !info->attrs[HWSIM_ATTR_TX_INFO])
7882513b
JL		 2369 goto out;
2370
9ddd12af 2371 src = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
7882513b 2372 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
d0f718c1 2373 ret_skb_ptr = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
7882513b
JL		 2374
2375 data2 = get_hwsim_data_ref_from_addr(src);
9ddd12af 2376 if (!data2)
7882513b
JL		 2377 goto out;
2378
2379 /* look for the skb matching the cookie passed back from user */
2380 skb_queue_walk_safe(&data2->pending, skb, tmp) {
d0f718c1 2381 if ((unsigned long)skb == ret_skb_ptr) {
7882513b
JL		 2382 skb_unlink(skb, &data2->pending);
2383 found = true;
2384 break;
2385 }
2386 }
2387
2388 /* not found */
2389 if (!found)
2390 goto out;
2391
2392 /* Tx info received because the frame was broadcasted on user space,
2393 so we get all the necessary info: tx attempts and skb control buff */
2394
2395 tx_attempts = (struct hwsim_tx_rate *)nla_data(
2396 info->attrs[HWSIM_ATTR_TX_INFO]);
2397
2398 /* now send back TX status */
2399 txi = IEEE80211_SKB_CB(skb);
2400
7882513b
JL		 2401 ieee80211_tx_info_clear_status(txi);
2402
2403 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
2404 txi->status.rates[i].idx = tx_attempts[i].idx;
2405 txi->status.rates[i].count = tx_attempts[i].count;
2406 /*txi->status.rates[i].flags = 0;*/
2407 }
2408
2409 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
2410
2411 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
2412 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
2413 if (skb->len >= 16) {
2414 hdr = (struct ieee80211_hdr *) skb->data;
c0e30763 2415 mac80211_hwsim_monitor_ack(data2->channel,
e8261171 2416 hdr->addr2);
7882513b 2417 }
06cf5c4c 2418 txi->flags |= IEEE80211_TX_STAT_ACK;
7882513b
JL		 2419 }
2420 ieee80211_tx_status_irqsafe(data2->hw, skb);
2421 return 0;
2422out:
2423 return -EINVAL;
2424
2425}
2426
2427static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
2428 struct genl_info *info)
2429{
e8261171 2430 struct mac80211_hwsim_data *data2;
7882513b 2431 struct ieee80211_rx_status rx_status;
9ddd12af 2432 const u8 *dst;
7882513b 2433 int frame_data_len;
9ddd12af 2434 void *frame_data;
7882513b
JL		 2435 struct sk_buff *skb = NULL;
2436
85ca8fc7
JB		 2437 if (info->snd_portid != wmediumd_portid)
2438 return -EINVAL;
2439
7882513b 2440 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
e8261171
JB		 2441 !info->attrs[HWSIM_ATTR_FRAME] ||
2442 !info->attrs[HWSIM_ATTR_RX_RATE] ||
2443 !info->attrs[HWSIM_ATTR_SIGNAL])
7882513b
JL		 2444 goto out;
2445
9ddd12af 2446 dst = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
7882513b 2447 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
9ddd12af 2448 frame_data = (void *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
7882513b
JL		 2449
2450 /* Allocate new skb here */
2451 skb = alloc_skb(frame_data_len, GFP_KERNEL);
2452 if (skb == NULL)
2453 goto err;
2454
9ddd12af 2455 if (frame_data_len > IEEE80211_MAX_DATA_LEN)
7882513b
JL		 2456 goto err;
2457
9ddd12af
JB		 2458 /* Copy the data */
2459 memcpy(skb_put(skb, frame_data_len), frame_data, frame_data_len);
7882513b 2460
9ddd12af
JB		 2461 data2 = get_hwsim_data_ref_from_addr(dst);
2462 if (!data2)
7882513b
JL		 2463 goto out;
2464
2465 /* check if radio is configured properly */
2466
e8261171 2467 if (data2->idle || !data2->started)
7882513b
JL		 2468 goto out;
2469
9ddd12af 2470 /* A frame is received from user space */
7882513b 2471 memset(&rx_status, 0, sizeof(rx_status));
4f86ed8f
BG		 2472 /* TODO: Check ATTR_FREQ if it exists, and maybe throw away off-channel
2473 * packets?
2474 */
7882513b
JL		 2475 rx_status.freq = data2->channel->center_freq;
2476 rx_status.band = data2->channel->band;
2477 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
2478 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
2479
2480 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
2155c3f8
BG		 2481 data2->rx_pkts++;
2482 data2->rx_bytes += skb->len;
7882513b
JL		 2483 ieee80211_rx_irqsafe(data2->hw, skb);
2484
2485 return 0;
2486err:
c393862f 2487 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 2488out:
2489 dev_kfree_skb(skb);
2490 return -EINVAL;
2491}
2492
2493static int hwsim_register_received_nl(struct sk_buff *skb_2,
2494 struct genl_info *info)
2495{
c5ac0854
JB		 2496 struct mac80211_hwsim_data *data;
2497 int chans = 1;
2498
2499 spin_lock_bh(&hwsim_radio_lock);
2500 list_for_each_entry(data, &hwsim_radios, list)
2501 chans = max(chans, data->channels);
2502 spin_unlock_bh(&hwsim_radio_lock);
2503
2504 /* In the future we should revise the userspace API and allow it
2505 * to set a flag that it does support multi-channel, then we can
2506 * let this pass conditionally on the flag.
2507 * For current userspace, prohibit it since it won't work right.
2508 */
2509 if (chans > 1)
2510 return -EOPNOTSUPP;
2511
85ca8fc7
JB		 2512 if (wmediumd_portid)
2513 return -EBUSY;
7882513b 2514
15e47304 2515 wmediumd_portid = info->snd_portid;
7882513b
JL		 2516
2517 printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
15e47304 2518 "switching to wmediumd mode with pid %d\n", info->snd_portid);
7882513b
JL		 2519
2520 return 0;
7882513b
JL		 2521}
2522
bc791098
JB		 2523static int hwsim_create_radio_nl(struct sk_buff *msg, struct genl_info *info)
2524{
2525 unsigned int chans = channels;
26b0e411
JB		 2526 const char *alpha2 = NULL;
2527 const struct ieee80211_regdomain *regd = NULL;
2528 bool reg_strict = info->attrs[HWSIM_ATTR_REG_STRICT_REG];
8c66a3d9 2529 bool p2p_device = info->attrs[HWSIM_ATTR_SUPPORT_P2P_DEVICE];
e9ed49bf 2530 bool destroy_on_close = info->attrs[HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE];
361c3e04 2531 bool use_chanctx;
9a0cb89a 2532 bool no_vif = false;
5cd8926b 2533 const char *hwname = NULL;
bc791098
JB		 2534
2535 if (info->attrs[HWSIM_ATTR_CHANNELS])
2536 chans = nla_get_u32(info->attrs[HWSIM_ATTR_CHANNELS]);
2537
9a0cb89a
BG		 2538 if (info->attrs[HWSIM_ATTR_NO_VIF])
2539 no_vif = true;
2540
5cd8926b
BG		 2541 if (info->attrs[HWSIM_ATTR_RADIO_NAME])
2542 hwname = nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]);
2543
361c3e04
LC		 2544 if (info->attrs[HWSIM_ATTR_USE_CHANCTX])
2545 use_chanctx = true;
2546 else
2547 use_chanctx = (chans > 1);
2548
26b0e411
JB		 2549 if (info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2])
2550 alpha2 = nla_data(info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2]);
2551
2552 if (info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]) {
2553 u32 idx = nla_get_u32(info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]);
2554
2555 if (idx >= ARRAY_SIZE(hwsim_world_regdom_custom))
2556 return -EINVAL;
2557 regd = hwsim_world_regdom_custom[idx];
2558 }
2559
8c66a3d9 2560 return mac80211_hwsim_create_radio(chans, alpha2, regd, reg_strict,
e9ed49bf 2561 p2p_device, use_chanctx,
5cd8926b 2562 destroy_on_close, info->snd_portid,
9a0cb89a 2563 hwname, no_vif);
bc791098
JB		 2564}
2565
2566static int hwsim_destroy_radio_nl(struct sk_buff *msg, struct genl_info *info)
2567{
2568 struct mac80211_hwsim_data *data;
8cdd9e1c
BG		 2569 s64 idx = -1;
2570 const char *hwname = NULL;
bc791098 2571
8cdd9e1c
BG		 2572 if (info->attrs[HWSIM_ATTR_RADIO_ID])
2573 idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
2574 else if (info->attrs[HWSIM_ATTR_RADIO_NAME])
2575 hwname = (void *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]);
2576 else
bc791098 2577 return -EINVAL;
bc791098
JB		 2578
2579 spin_lock_bh(&hwsim_radio_lock);
2580 list_for_each_entry(data, &hwsim_radios, list) {
8cdd9e1c
BG		 2581 if (idx >= 0) {
2582 if (data->idx != idx)
2583 continue;
2584 } else {
2585 if (hwname &&
2586 strcmp(hwname, wiphy_name(data->hw->wiphy)))
2587 continue;
2588 }
2589
bc791098
JB		 2590 list_del(&data->list);
2591 spin_unlock_bh(&hwsim_radio_lock);
2592 mac80211_hwsim_destroy_radio(data);
2593 return 0;
2594 }
2595 spin_unlock_bh(&hwsim_radio_lock);
2596
2597 return -ENODEV;
7882513b
JL		 2598}
2599
2600/* Generic Netlink operations array */
4534de83 2601static const struct genl_ops hwsim_ops[] = {
7882513b
JL		 2602 {
2603 .cmd = HWSIM_CMD_REGISTER,
2604 .policy = hwsim_genl_policy,
2605 .doit = hwsim_register_received_nl,
2606 .flags = GENL_ADMIN_PERM,
2607 },
2608 {
2609 .cmd = HWSIM_CMD_FRAME,
2610 .policy = hwsim_genl_policy,
2611 .doit = hwsim_cloned_frame_received_nl,
2612 },
2613 {
2614 .cmd = HWSIM_CMD_TX_INFO_FRAME,
2615 .policy = hwsim_genl_policy,
2616 .doit = hwsim_tx_info_frame_received_nl,
2617 },
bc791098
JB		 2618 {
2619 .cmd = HWSIM_CMD_CREATE_RADIO,
2620 .policy = hwsim_genl_policy,
2621 .doit = hwsim_create_radio_nl,
2622 .flags = GENL_ADMIN_PERM,
2623 },
2624 {
2625 .cmd = HWSIM_CMD_DESTROY_RADIO,
2626 .policy = hwsim_genl_policy,
2627 .doit = hwsim_destroy_radio_nl,
2628 .flags = GENL_ADMIN_PERM,
2629 },
7882513b
JL		 2630};
2631
e9ed49bf
JR		 2632static void destroy_radio(struct work_struct *work)
2633{
2634 struct mac80211_hwsim_data *data =
2635 container_of(work, struct mac80211_hwsim_data, destroy_work);
2636
2637 mac80211_hwsim_destroy_radio(data);
2638}
2639
2640static void remove_user_radios(u32 portid)
2641{
2642 struct mac80211_hwsim_data *entry, *tmp;
2643
2644 spin_lock_bh(&hwsim_radio_lock);
2645 list_for_each_entry_safe(entry, tmp, &hwsim_radios, list) {
2646 if (entry->destroy_on_close && entry->portid == portid) {
2647 list_del(&entry->list);
2648 INIT_WORK(&entry->destroy_work, destroy_radio);
2649 schedule_work(&entry->destroy_work);
2650 }
2651 }
2652 spin_unlock_bh(&hwsim_radio_lock);
2653}
2654
7882513b
JL		 2655static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
2656 unsigned long state,
2657 void *_notify)
2658{
2659 struct netlink_notify *notify = _notify;
2660
2661 if (state != NETLINK_URELEASE)
2662 return NOTIFY_DONE;
2663
e9ed49bf
JR		 2664 remove_user_radios(notify->portid);
2665
15e47304 2666 if (notify->portid == wmediumd_portid) {
7882513b
JL		 2667 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
2668 " socket, switching to perfect channel medium\n");
15e47304 2669 wmediumd_portid = 0;
7882513b
JL		 2670 }
2671 return NOTIFY_DONE;
2672
2673}
2674
2675static struct notifier_block hwsim_netlink_notifier = {
2676 .notifier_call = mac80211_hwsim_netlink_notify,
2677};
2678
2679static int hwsim_init_netlink(void)
2680{
2681 int rc;
e8261171 2682
7882513b
JL		 2683 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
2684
c53ed742 2685 rc = genl_register_family_with_ops(&hwsim_genl_family, hwsim_ops);
7882513b
JL		 2686 if (rc)
2687 goto failure;
2688
2689 rc = netlink_register_notifier(&hwsim_netlink_notifier);
2690 if (rc)
2691 goto failure;
2692
2693 return 0;
2694
2695failure:
c393862f 2696 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 2697 return -EINVAL;
2698}
2699
2700static void hwsim_exit_netlink(void)
2701{
7882513b
JL		 2702 /* unregister the notifier */
2703 netlink_unregister_notifier(&hwsim_netlink_notifier);
2704 /* unregister the family */
cf7a6b2d 2705 genl_unregister_family(&hwsim_genl_family);
7882513b
JL		 2706}
2707
acc1e7a3
JM		 2708static int __init init_mac80211_hwsim(void)
2709{
f39c2bfa 2710 int i, err;
acc1e7a3 2711
bc791098 2712 if (radios < 0 || radios > 100)
acc1e7a3
JM		 2713 return -EINVAL;
2714
e8261171
JB		 2715 if (channels < 1)
2716 return -EINVAL;
2717
38ed5048
JB		 2718 mac80211_hwsim_mchan_ops = mac80211_hwsim_ops;
2719 mac80211_hwsim_mchan_ops.hw_scan = mac80211_hwsim_hw_scan;
2720 mac80211_hwsim_mchan_ops.cancel_hw_scan = mac80211_hwsim_cancel_hw_scan;
2721 mac80211_hwsim_mchan_ops.sw_scan_start = NULL;
2722 mac80211_hwsim_mchan_ops.sw_scan_complete = NULL;
2723 mac80211_hwsim_mchan_ops.remain_on_channel = mac80211_hwsim_roc;
2724 mac80211_hwsim_mchan_ops.cancel_remain_on_channel = mac80211_hwsim_croc;
2725 mac80211_hwsim_mchan_ops.add_chanctx = mac80211_hwsim_add_chanctx;
2726 mac80211_hwsim_mchan_ops.remove_chanctx = mac80211_hwsim_remove_chanctx;
2727 mac80211_hwsim_mchan_ops.change_chanctx = mac80211_hwsim_change_chanctx;
2728 mac80211_hwsim_mchan_ops.assign_vif_chanctx =
2729 mac80211_hwsim_assign_vif_chanctx;
2730 mac80211_hwsim_mchan_ops.unassign_vif_chanctx =
2731 mac80211_hwsim_unassign_vif_chanctx;
69068036 2732
0e057d73
JB		 2733 spin_lock_init(&hwsim_radio_lock);
2734 INIT_LIST_HEAD(&hwsim_radios);
acc1e7a3 2735
c07fe5ae 2736 err = platform_driver_register(&mac80211_hwsim_driver);
9ea92774
MP		 2737 if (err)
2738 return err;
2739
acc1e7a3 2740 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
9ea92774
MP		 2741 if (IS_ERR(hwsim_class)) {
2742 err = PTR_ERR(hwsim_class);
f39c2bfa 2743 goto out_unregister_driver;
9ea92774 2744 }
acc1e7a3 2745
0e057d73 2746 for (i = 0; i < radios; i++) {
26b0e411
JB		 2747 const char *reg_alpha2 = NULL;
2748 const struct ieee80211_regdomain *regd = NULL;
2749 bool reg_strict = false;
acc1e7a3 2750
4a5af9c2 2751 switch (regtest) {
4a5af9c2 2752 case HWSIM_REGTEST_DIFF_COUNTRY:
26b0e411
JB		 2753 if (i < ARRAY_SIZE(hwsim_alpha2s))
2754 reg_alpha2 = hwsim_alpha2s[i];
4a5af9c2
LR		 2755 break;
2756 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
2757 if (!i)
26b0e411 2758 reg_alpha2 = hwsim_alpha2s[0];
4a5af9c2 2759 break;
4a5af9c2 2760 case HWSIM_REGTEST_STRICT_ALL:
26b0e411
JB		 2761 reg_strict = true;
2762 case HWSIM_REGTEST_DRIVER_REG_ALL:
2763 reg_alpha2 = hwsim_alpha2s[0];
4a5af9c2 2764 break;
26b0e411
JB		 2765 case HWSIM_REGTEST_WORLD_ROAM:
2766 if (i == 0)
2767 regd = &hwsim_world_regdom_custom_01;
4a5af9c2
LR		 2768 break;
2769 case HWSIM_REGTEST_CUSTOM_WORLD:
26b0e411
JB		 2770 regd = &hwsim_world_regdom_custom_01;
2771 break;
4a5af9c2 2772 case HWSIM_REGTEST_CUSTOM_WORLD_2:
26b0e411
JB		 2773 if (i == 0)
2774 regd = &hwsim_world_regdom_custom_01;
2775 else if (i == 1)
2776 regd = &hwsim_world_regdom_custom_02;
4a5af9c2
LR		 2777 break;
2778 case HWSIM_REGTEST_STRICT_FOLLOW:
26b0e411
JB		 2779 if (i == 0) {
2780 reg_strict = true;
2781 reg_alpha2 = hwsim_alpha2s[0];
2782 }
4a5af9c2
LR		 2783 break;
2784 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
26b0e411
JB		 2785 if (i == 0) {
2786 reg_strict = true;
2787 reg_alpha2 = hwsim_alpha2s[0];
2788 } else if (i == 1) {
2789 reg_alpha2 = hwsim_alpha2s[1];
2790 }
4a5af9c2
LR		 2791 break;
2792 case HWSIM_REGTEST_ALL:
26b0e411
JB		 2793 switch (i) {
2794 case 0:
2795 regd = &hwsim_world_regdom_custom_01;
2796 break;
2797 case 1:
2798 regd = &hwsim_world_regdom_custom_02;
2799 break;
2800 case 2:
2801 reg_alpha2 = hwsim_alpha2s[0];
2802 break;
2803 case 3:
2804 reg_alpha2 = hwsim_alpha2s[1];
2805 break;
2806 case 4:
2807 reg_strict = true;
2808 reg_alpha2 = hwsim_alpha2s[2];
2809 break;
2810 }
4a5af9c2
LR		 2811 break;
2812 default:
2813 break;
2814 }
2815
26b0e411 2816 err = mac80211_hwsim_create_radio(channels, reg_alpha2,
8c66a3d9 2817 regd, reg_strict,
361c3e04 2818 support_p2p_device,
9a0cb89a
BG		 2819 channels > 1, false, 0, NULL,
2820 false);
bc791098 2821 if (err < 0)
f39c2bfa 2822 goto out_free_radios;
acc1e7a3
JM		 2823 }
2824
c835a677
TG		 2825 hwsim_mon = alloc_netdev(0, "hwsim%d", NET_NAME_UNKNOWN,
2826 hwsim_mon_setup);
bcdd8220
WY		 2827 if (hwsim_mon == NULL) {
2828 err = -ENOMEM;
f39c2bfa 2829 goto out_free_radios;
bcdd8220 2830 }
acc1e7a3 2831
7882513b 2832 rtnl_lock();
7882513b 2833 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
f39c2bfa
JB		 2834 if (err < 0) {
2835 rtnl_unlock();
2836 goto out_free_radios;
2837 }
7882513b
JL		 2838
2839 err = register_netdevice(hwsim_mon);
f39c2bfa
JB		 2840 if (err < 0) {
2841 rtnl_unlock();
2842 goto out_free_mon;
2843 }
7882513b
JL		 2844 rtnl_unlock();
2845
2846 err = hwsim_init_netlink();
2847 if (err < 0)
f39c2bfa 2848 goto out_free_mon;
7882513b 2849
acc1e7a3
JM		 2850 return 0;
2851
f39c2bfa 2852out_free_mon:
acc1e7a3 2853 free_netdev(hwsim_mon);
f39c2bfa 2854out_free_radios:
3a33cc10 2855 mac80211_hwsim_free();
f39c2bfa 2856out_unregister_driver:
c07fe5ae 2857 platform_driver_unregister(&mac80211_hwsim_driver);
acc1e7a3
JM		 2858 return err;
2859}
f8fffc7e 2860module_init(init_mac80211_hwsim);
acc1e7a3
JM		 2861
2862static void __exit exit_mac80211_hwsim(void)
2863{
0e057d73 2864 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
acc1e7a3 2865
7882513b
JL		 2866 hwsim_exit_netlink();
2867
acc1e7a3 2868 mac80211_hwsim_free();
5d416351 2869 unregister_netdev(hwsim_mon);
c07fe5ae 2870 platform_driver_unregister(&mac80211_hwsim_driver);
acc1e7a3 2871}
acc1e7a3 2872module_exit(exit_mac80211_hwsim);
Linux kernel - Deliverables
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