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mac80211-hwsim: hwname is always known so use the value from wiphy
[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;
339467b9 425 u8 scan_addr[ETH_ALEN];
e8261171 426
acc1e7a3 427 struct ieee80211_channel *channel;
01e59e46 428 u64 beacon_int /* beacon interval in us */;
acc1e7a3 429 unsigned int rx_filter;
f74cb0f7
LR		 430 bool started, idle, scanning;
431 struct mutex mutex;
01e59e46 432 struct tasklet_hrtimer beacon_timer;
fc6971d4
JM		 433 enum ps_mode {
434 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
435 } ps;
436 bool ps_poll_pending;
437 struct dentry *debugfs;
73606d00 438
7882513b 439 struct sk_buff_head pending; /* packets pending */
73606d00
DW		 440 /*
441 * Only radios in the same group can communicate together (the
442 * channel has to match too). Each bit represents a group. A
9ebac15f 443 * radio can be in more than one group.
73606d00
DW		 444 */
445 u64 group;
bdd7bd16
BG		 446
447 int power_level;
2f40b940
JC		 448
449 /* difference between this hw's clock and the real clock, in usecs */
45034bfb 450 s64 tsf_offset;
c51f8783 451 s64 bcn_delta;
b66851c3
TP		 452 /* absolute beacon transmission time. Used to cover up "tx" delay. */
453 u64 abs_bcn_ts;
2155c3f8
BG		 454
455 /* Stats */
456 u64 tx_pkts;
457 u64 rx_pkts;
458 u64 tx_bytes;
459 u64 rx_bytes;
460 u64 tx_dropped;
461 u64 tx_failed;
acc1e7a3
JM		 462};
463
464
465struct hwsim_radiotap_hdr {
466 struct ieee80211_radiotap_header hdr;
2f40b940 467 __le64 rt_tsft;
acc1e7a3
JM		 468 u8 rt_flags;
469 u8 rt_rate;
470 __le16 rt_channel;
471 __le16 rt_chbitmask;
ba2d3587 472} __packed;
acc1e7a3 473
76a56eb3
JM		 474struct hwsim_radiotap_ack_hdr {
475 struct ieee80211_radiotap_header hdr;
476 u8 rt_flags;
477 u8 pad;
478 __le16 rt_channel;
479 __le16 rt_chbitmask;
480} __packed;
481
7882513b
JL		 482/* MAC80211_HWSIM netlinf family */
483static struct genl_family hwsim_genl_family = {
484 .id = GENL_ID_GENERATE,
485 .hdrsize = 0,
486 .name = "MAC80211_HWSIM",
487 .version = 1,
488 .maxattr = HWSIM_ATTR_MAX,
489};
490
62759361
JR		 491enum hwsim_multicast_groups {
492 HWSIM_MCGRP_CONFIG,
493};
494
495static const struct genl_multicast_group hwsim_mcgrps[] = {
496 [HWSIM_MCGRP_CONFIG] = { .name = "config", },
497};
498
7882513b
JL		 499/* MAC80211_HWSIM netlink policy */
500
205d2429 501static const struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
9ddd12af
JB		 502 [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
503 [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
7882513b
JL		 504 [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
505 .len = IEEE80211_MAX_DATA_LEN },
506 [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
507 [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
508 [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
509 [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC,
9ddd12af
JB		 510 .len = IEEE80211_TX_MAX_RATES *
511 sizeof(struct hwsim_tx_rate)},
7882513b 512 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
bc791098
JB		 513 [HWSIM_ATTR_CHANNELS] = { .type = NLA_U32 },
514 [HWSIM_ATTR_RADIO_ID] = { .type = NLA_U32 },
26b0e411
JB		 515 [HWSIM_ATTR_REG_HINT_ALPHA2] = { .type = NLA_STRING, .len = 2 },
516 [HWSIM_ATTR_REG_CUSTOM_REG] = { .type = NLA_U32 },
517 [HWSIM_ATTR_REG_STRICT_REG] = { .type = NLA_FLAG },
8c66a3d9 518 [HWSIM_ATTR_SUPPORT_P2P_DEVICE] = { .type = NLA_FLAG },
e9ed49bf 519 [HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE] = { .type = NLA_FLAG },
de29eda8
JB		 520 [HWSIM_ATTR_RADIO_NAME] = { .type = NLA_STRING },
521 [HWSIM_ATTR_NO_VIF] = { .type = NLA_FLAG },
522 [HWSIM_ATTR_FREQ] = { .type = NLA_U32 },
7882513b 523};
acc1e7a3 524
de0421d5
JB		 525static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
526 struct sk_buff *skb,
527 struct ieee80211_channel *chan);
528
529/* sysfs attributes */
530static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
531{
532 struct mac80211_hwsim_data *data = dat;
533 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
534 struct sk_buff *skb;
535 struct ieee80211_pspoll *pspoll;
536
537 if (!vp->assoc)
538 return;
539
540 wiphy_debug(data->hw->wiphy,
541 "%s: send PS-Poll to %pM for aid %d\n",
542 __func__, vp->bssid, vp->aid);
543
544 skb = dev_alloc_skb(sizeof(*pspoll));
545 if (!skb)
546 return;
547 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
548 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
549 IEEE80211_STYPE_PSPOLL |
550 IEEE80211_FCTL_PM);
551 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
552 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
553 memcpy(pspoll->ta, mac, ETH_ALEN);
554
555 rcu_read_lock();
556 mac80211_hwsim_tx_frame(data->hw, skb,
557 rcu_dereference(vif->chanctx_conf)->def.chan);
558 rcu_read_unlock();
559}
560
561static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
562 struct ieee80211_vif *vif, int ps)
563{
564 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
565 struct sk_buff *skb;
566 struct ieee80211_hdr *hdr;
567
568 if (!vp->assoc)
569 return;
570
571 wiphy_debug(data->hw->wiphy,
572 "%s: send data::nullfunc to %pM ps=%d\n",
573 __func__, vp->bssid, ps);
574
575 skb = dev_alloc_skb(sizeof(*hdr));
576 if (!skb)
577 return;
578 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
579 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
580 IEEE80211_STYPE_NULLFUNC |
581 (ps ? IEEE80211_FCTL_PM : 0));
582 hdr->duration_id = cpu_to_le16(0);
583 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
584 memcpy(hdr->addr2, mac, ETH_ALEN);
585 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
586
587 rcu_read_lock();
588 mac80211_hwsim_tx_frame(data->hw, skb,
589 rcu_dereference(vif->chanctx_conf)->def.chan);
590 rcu_read_unlock();
591}
592
593
594static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
595 struct ieee80211_vif *vif)
596{
597 struct mac80211_hwsim_data *data = dat;
598 hwsim_send_nullfunc(data, mac, vif, 1);
599}
600
601static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
602 struct ieee80211_vif *vif)
603{
604 struct mac80211_hwsim_data *data = dat;
605 hwsim_send_nullfunc(data, mac, vif, 0);
606}
607
608static int hwsim_fops_ps_read(void *dat, u64 *val)
609{
610 struct mac80211_hwsim_data *data = dat;
611 *val = data->ps;
612 return 0;
613}
614
615static int hwsim_fops_ps_write(void *dat, u64 val)
616{
617 struct mac80211_hwsim_data *data = dat;
618 enum ps_mode old_ps;
619
620 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
621 val != PS_MANUAL_POLL)
622 return -EINVAL;
623
624 old_ps = data->ps;
625 data->ps = val;
626
627 if (val == PS_MANUAL_POLL) {
628 ieee80211_iterate_active_interfaces(data->hw,
629 IEEE80211_IFACE_ITER_NORMAL,
630 hwsim_send_ps_poll, data);
631 data->ps_poll_pending = true;
632 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
633 ieee80211_iterate_active_interfaces(data->hw,
634 IEEE80211_IFACE_ITER_NORMAL,
635 hwsim_send_nullfunc_ps,
636 data);
637 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
638 ieee80211_iterate_active_interfaces(data->hw,
639 IEEE80211_IFACE_ITER_NORMAL,
640 hwsim_send_nullfunc_no_ps,
641 data);
642 }
643
644 return 0;
645}
646
647DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
648 "%llu\n");
649
650static int hwsim_write_simulate_radar(void *dat, u64 val)
651{
652 struct mac80211_hwsim_data *data = dat;
653
654 ieee80211_radar_detected(data->hw);
655
656 return 0;
657}
658
659DEFINE_SIMPLE_ATTRIBUTE(hwsim_simulate_radar, NULL,
660 hwsim_write_simulate_radar, "%llu\n");
661
662static int hwsim_fops_group_read(void *dat, u64 *val)
663{
664 struct mac80211_hwsim_data *data = dat;
665 *val = data->group;
666 return 0;
667}
668
669static int hwsim_fops_group_write(void *dat, u64 val)
670{
671 struct mac80211_hwsim_data *data = dat;
672 data->group = val;
673 return 0;
674}
675
676DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
677 hwsim_fops_group_read, hwsim_fops_group_write,
678 "%llx\n");
679
d0cf9c0d
SH		 680static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
681 struct net_device *dev)
acc1e7a3
JM		 682{
683 /* TODO: allow packet injection */
684 dev_kfree_skb(skb);
6ed10654 685 return NETDEV_TX_OK;
acc1e7a3
JM		 686}
687
b66851c3
TP		 688static inline u64 mac80211_hwsim_get_tsf_raw(void)
689{
690 return ktime_to_us(ktime_get_real());
691}
692
2f40b940
JC		 693static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
694{
b66851c3 695 u64 now = mac80211_hwsim_get_tsf_raw();
2f40b940
JC		 696 return cpu_to_le64(now + data->tsf_offset);
697}
acc1e7a3 698
12ce8ba3 699static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
b66851c3 700 struct ieee80211_vif *vif)
12ce8ba3
JC		 701{
702 struct mac80211_hwsim_data *data = hw->priv;
703 return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
704}
705
706static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
707 struct ieee80211_vif *vif, u64 tsf)
708{
709 struct mac80211_hwsim_data *data = hw->priv;
45034bfb 710 u64 now = mac80211_hwsim_get_tsf(hw, vif);
c51f8783 711 u32 bcn_int = data->beacon_int;
5d26b508 712 u64 delta = abs64(tsf - now);
45034bfb 713
c51f8783 714 /* adjust after beaconing with new timestamp at old TBTT */
5d26b508
AB		 715 if (tsf > now) {
716 data->tsf_offset += delta;
717 data->bcn_delta = do_div(delta, bcn_int);
718 } else {
719 data->tsf_offset -= delta;
720 data->bcn_delta = -do_div(delta, bcn_int);
721 }
12ce8ba3
JC		 722}
723
acc1e7a3 724static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
e8261171
JB		 725 struct sk_buff *tx_skb,
726 struct ieee80211_channel *chan)
acc1e7a3
JM		 727{
728 struct mac80211_hwsim_data *data = hw->priv;
729 struct sk_buff *skb;
730 struct hwsim_radiotap_hdr *hdr;
731 u16 flags;
732 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
733 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
734
735 if (!netif_running(hwsim_mon))
736 return;
737
738 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
739 if (skb == NULL)
740 return;
741
742 hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
743 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
744 hdr->hdr.it_pad = 0;
745 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
f248f105
JM		 746 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
747 (1 << IEEE80211_RADIOTAP_RATE) |
2f40b940 748 (1 << IEEE80211_RADIOTAP_TSFT) |
f248f105 749 (1 << IEEE80211_RADIOTAP_CHANNEL));
2f40b940 750 hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
acc1e7a3
JM		 751 hdr->rt_flags = 0;
752 hdr->rt_rate = txrate->bitrate / 5;
e8261171 753 hdr->rt_channel = cpu_to_le16(chan->center_freq);
acc1e7a3
JM		 754 flags = IEEE80211_CHAN_2GHZ;
755 if (txrate->flags & IEEE80211_RATE_ERP_G)
756 flags |= IEEE80211_CHAN_OFDM;
757 else
758 flags |= IEEE80211_CHAN_CCK;
759 hdr->rt_chbitmask = cpu_to_le16(flags);
760
761 skb->dev = hwsim_mon;
762 skb_set_mac_header(skb, 0);
763 skb->ip_summed = CHECKSUM_UNNECESSARY;
764 skb->pkt_type = PACKET_OTHERHOST;
f248f105 765 skb->protocol = htons(ETH_P_802_2);
acc1e7a3
JM		 766 memset(skb->cb, 0, sizeof(skb->cb));
767 netif_rx(skb);
768}
769
770
e8261171
JB		 771static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
772 const u8 *addr)
6c085227 773{
6c085227 774 struct sk_buff *skb;
76a56eb3 775 struct hwsim_radiotap_ack_hdr *hdr;
6c085227
JM		 776 u16 flags;
777 struct ieee80211_hdr *hdr11;
778
779 if (!netif_running(hwsim_mon))
780 return;
781
782 skb = dev_alloc_skb(100);
783 if (skb == NULL)
784 return;
785
76a56eb3 786 hdr = (struct hwsim_radiotap_ack_hdr *) skb_put(skb, sizeof(*hdr));
6c085227
JM		 787 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
788 hdr->hdr.it_pad = 0;
789 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
790 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
791 (1 << IEEE80211_RADIOTAP_CHANNEL));
792 hdr->rt_flags = 0;
76a56eb3 793 hdr->pad = 0;
e8261171 794 hdr->rt_channel = cpu_to_le16(chan->center_freq);
6c085227
JM		 795 flags = IEEE80211_CHAN_2GHZ;
796 hdr->rt_chbitmask = cpu_to_le16(flags);
797
798 hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
799 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
800 IEEE80211_STYPE_ACK);
801 hdr11->duration_id = cpu_to_le16(0);
802 memcpy(hdr11->addr1, addr, ETH_ALEN);
803
804 skb->dev = hwsim_mon;
805 skb_set_mac_header(skb, 0);
806 skb->ip_summed = CHECKSUM_UNNECESSARY;
807 skb->pkt_type = PACKET_OTHERHOST;
808 skb->protocol = htons(ETH_P_802_2);
809 memset(skb->cb, 0, sizeof(skb->cb));
810 netif_rx(skb);
811}
812
3283e286
JB		 813struct mac80211_hwsim_addr_match_data {
814 u8 addr[ETH_ALEN];
815 bool ret;
816};
817
818static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
819 struct ieee80211_vif *vif)
820{
821 struct mac80211_hwsim_addr_match_data *md = data;
822
823 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
824 md->ret = true;
825}
826
827static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
828 const u8 *addr)
829{
830 struct mac80211_hwsim_addr_match_data md = {
831 .ret = false,
832 };
833
339467b9
JB		 834 if (data->scanning && memcmp(addr, data->scan_addr, ETH_ALEN) == 0)
835 return true;
836
3283e286
JB		 837 memcpy(md.addr, addr, ETH_ALEN);
838
839 ieee80211_iterate_active_interfaces_atomic(data->hw,
840 IEEE80211_IFACE_ITER_NORMAL,
841 mac80211_hwsim_addr_iter,
842 &md);
843
844 return md.ret;
845}
6c085227 846
fc6971d4
JM		 847static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
848 struct sk_buff *skb)
849{
850 switch (data->ps) {
851 case PS_DISABLED:
852 return true;
853 case PS_ENABLED:
854 return false;
855 case PS_AUTO_POLL:
856 /* TODO: accept (some) Beacons by default and other frames only
857 * if pending PS-Poll has been sent */
858 return true;
859 case PS_MANUAL_POLL:
860 /* Allow unicast frames to own address if there is a pending
861 * PS-Poll */
862 if (data->ps_poll_pending &&
3283e286 863 mac80211_hwsim_addr_match(data, skb->data + 4)) {
fc6971d4
JM		 864 data->ps_poll_pending = false;
865 return true;
866 }
867 return false;
868 }
869
870 return true;
871}
872
7882513b
JL		 873static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
874 struct sk_buff *my_skb,
15e47304 875 int dst_portid)
7882513b
JL		 876{
877 struct sk_buff *skb;
878 struct mac80211_hwsim_data *data = hw->priv;
879 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
880 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
881 void *msg_head;
882 unsigned int hwsim_flags = 0;
883 int i;
884 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
885
7882513b
JL		 886 if (data->ps != PS_DISABLED)
887 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
888 /* If the queue contains MAX_QUEUE skb's drop some */
889 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
890 /* Droping until WARN_QUEUE level */
2155c3f8 891 while (skb_queue_len(&data->pending) >= WARN_QUEUE) {
b7bc9679 892 ieee80211_free_txskb(hw, skb_dequeue(&data->pending));
2155c3f8
BG		 893 data->tx_dropped++;
894 }
7882513b
JL		 895 }
896
58050fce 897 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
7882513b
JL		 898 if (skb == NULL)
899 goto nla_put_failure;
900
901 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
902 HWSIM_CMD_FRAME);
903 if (msg_head == NULL) {
904 printk(KERN_DEBUG "mac80211_hwsim: problem with msg_head\n");
905 goto nla_put_failure;
906 }
907
633c9389 908 if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
9ddd12af 909 ETH_ALEN, data->addresses[1].addr))
633c9389 910 goto nla_put_failure;
265dc7f0 911
7882513b 912 /* We get the skb->data */
633c9389
DM		 913 if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
914 goto nla_put_failure;
7882513b
JL		 915
916 /* We get the flags for this transmission, and we translate them to
917 wmediumd flags */
918
919 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
920 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
921
922 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
923 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
924
633c9389
DM		 925 if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
926 goto nla_put_failure;
7882513b 927
4f86ed8f
BG		 928 if (nla_put_u32(skb, HWSIM_ATTR_FREQ, data->channel->center_freq))
929 goto nla_put_failure;
930
7882513b
JL		 931 /* We get the tx control (rate and retries) info*/
932
933 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
934 tx_attempts[i].idx = info->status.rates[i].idx;
935 tx_attempts[i].count = info->status.rates[i].count;
936 }
937
633c9389
DM		 938 if (nla_put(skb, HWSIM_ATTR_TX_INFO,
939 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
940 tx_attempts))
941 goto nla_put_failure;
7882513b
JL		 942
943 /* We create a cookie to identify this skb */
633c9389
DM		 944 if (nla_put_u64(skb, HWSIM_ATTR_COOKIE, (unsigned long) my_skb))
945 goto nla_put_failure;
7882513b
JL		 946
947 genlmsg_end(skb, msg_head);
15e47304 948 genlmsg_unicast(&init_net, skb, dst_portid);
7882513b
JL		 949
950 /* Enqueue the packet */
951 skb_queue_tail(&data->pending, my_skb);
2155c3f8
BG		 952 data->tx_pkts++;
953 data->tx_bytes += my_skb->len;
7882513b
JL		 954 return;
955
956nla_put_failure:
c393862f 957 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
b7bc9679 958 ieee80211_free_txskb(hw, my_skb);
2155c3f8 959 data->tx_failed++;
7882513b
JL		 960}
961
e8261171
JB		 962static bool hwsim_chans_compat(struct ieee80211_channel *c1,
963 struct ieee80211_channel *c2)
964{
965 if (!c1 || !c2)
966 return false;
967
968 return c1->center_freq == c2->center_freq;
969}
970
971struct tx_iter_data {
972 struct ieee80211_channel *channel;
973 bool receive;
974};
975
976static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
977 struct ieee80211_vif *vif)
978{
979 struct tx_iter_data *data = _data;
980
981 if (!vif->chanctx_conf)
982 return;
983
984 if (!hwsim_chans_compat(data->channel,
4bf88530 985 rcu_dereference(vif->chanctx_conf)->def.chan))
e8261171
JB		 986 return;
987
988 data->receive = true;
989}
990
1f7bba79
JB		 991static void mac80211_hwsim_add_vendor_rtap(struct sk_buff *skb)
992{
993 /*
994 * To enable this code, #define the HWSIM_RADIOTAP_OUI,
995 * e.g. like this:
996 * #define HWSIM_RADIOTAP_OUI "\x02\x00\x00"
997 * (but you should use a valid OUI, not that)
998 *
999 * If anyone wants to 'donate' a radiotap OUI/subns code
1000 * please send a patch removing this #ifdef and changing
1001 * the values accordingly.
1002 */
1003#ifdef HWSIM_RADIOTAP_OUI
1004 struct ieee80211_vendor_radiotap *rtap;
1005
1006 /*
1007 * Note that this code requires the headroom in the SKB
1008 * that was allocated earlier.
1009 */
1010 rtap = (void *)skb_push(skb, sizeof(*rtap) + 8 + 4);
1011 rtap->oui[0] = HWSIM_RADIOTAP_OUI[0];
1012 rtap->oui[1] = HWSIM_RADIOTAP_OUI[1];
1013 rtap->oui[2] = HWSIM_RADIOTAP_OUI[2];
1014 rtap->subns = 127;
1015
1016 /*
1017 * Radiotap vendor namespaces can (and should) also be
1018 * split into fields by using the standard radiotap
1019 * presence bitmap mechanism. Use just BIT(0) here for
1020 * the presence bitmap.
1021 */
1022 rtap->present = BIT(0);
1023 /* We have 8 bytes of (dummy) data */
1024 rtap->len = 8;
1025 /* For testing, also require it to be aligned */
1026 rtap->align = 8;
1027 /* And also test that padding works, 4 bytes */
1028 rtap->pad = 4;
1029 /* push the data */
1030 memcpy(rtap->data, "ABCDEFGH", 8);
1031 /* make sure to clear padding, mac80211 doesn't */
1032 memset(rtap->data + 8, 0, 4);
1033
1034 IEEE80211_SKB_RXCB(skb)->flag |= RX_FLAG_RADIOTAP_VENDOR_DATA;
1035#endif
1036}
1037
7882513b 1038static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
e8261171
JB		 1039 struct sk_buff *skb,
1040 struct ieee80211_channel *chan)
acc1e7a3 1041{
0e057d73
JB		 1042 struct mac80211_hwsim_data *data = hw->priv, *data2;
1043 bool ack = false;
e36cfdc9 1044 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
acc1e7a3 1045 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
e36cfdc9 1046 struct ieee80211_rx_status rx_status;
b66851c3 1047 u64 now;
acc1e7a3
JM		 1048
1049 memset(&rx_status, 0, sizeof(rx_status));
f4bda337 1050 rx_status.flag |= RX_FLAG_MACTIME_START;
e8261171
JB		 1051 rx_status.freq = chan->center_freq;
1052 rx_status.band = chan->band;
dad6330d
KB		 1053 if (info->control.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) {
1054 rx_status.rate_idx =
1055 ieee80211_rate_get_vht_mcs(&info->control.rates[0]);
1056 rx_status.vht_nss =
1057 ieee80211_rate_get_vht_nss(&info->control.rates[0]);
1058 rx_status.flag |= RX_FLAG_VHT;
1059 } else {
1060 rx_status.rate_idx = info->control.rates[0].idx;
1061 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
1062 rx_status.flag |= RX_FLAG_HT;
1063 }
281ed297
JM		 1064 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
1065 rx_status.flag |= RX_FLAG_40MHZ;
1066 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
1067 rx_status.flag |= RX_FLAG_SHORT_GI;
4b14c96d 1068 /* TODO: simulate real signal strength (and optional packet loss) */
bdd7bd16 1069 rx_status.signal = data->power_level - 50;
acc1e7a3 1070
fc6971d4
JM		 1071 if (data->ps != PS_DISABLED)
1072 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1073
90e3012e
JB		 1074 /* release the skb's source info */
1075 skb_orphan(skb);
c0acf38e 1076 skb_dst_drop(skb);
90e3012e
JB		 1077 skb->mark = 0;
1078 secpath_reset(skb);
1079 nf_reset(skb);
1080
b66851c3
TP		 1081 /*
1082 * Get absolute mactime here so all HWs RX at the "same time", and
1083 * absolute TX time for beacon mactime so the timestamp matches.
1084 * Giving beacons a different mactime than non-beacons looks messy, but
1085 * it helps the Toffset be exact and a ~10us mactime discrepancy
1086 * probably doesn't really matter.
1087 */
1088 if (ieee80211_is_beacon(hdr->frame_control) ||
1089 ieee80211_is_probe_resp(hdr->frame_control))
1090 now = data->abs_bcn_ts;
1091 else
1092 now = mac80211_hwsim_get_tsf_raw();
1093
acc1e7a3 1094 /* Copy skb to all enabled radios that are on the current frequency */
0e057d73
JB		 1095 spin_lock(&hwsim_radio_lock);
1096 list_for_each_entry(data2, &hwsim_radios, list) {
acc1e7a3 1097 struct sk_buff *nskb;
e8261171
JB		 1098 struct tx_iter_data tx_iter_data = {
1099 .receive = false,
1100 .channel = chan,
1101 };
acc1e7a3 1102
0e057d73 1103 if (data == data2)
acc1e7a3 1104 continue;
0e057d73 1105
e8261171
JB		 1106 if (!data2->started || (data2->idle && !data2->tmp_chan) ||
1107 !hwsim_ps_rx_ok(data2, skb))
acc1e7a3
JM		 1108 continue;
1109
e8261171
JB		 1110 if (!(data->group & data2->group))
1111 continue;
1112
1113 if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
1114 !hwsim_chans_compat(chan, data2->channel)) {
1115 ieee80211_iterate_active_interfaces_atomic(
8b2c9824
JB		 1116 data2->hw, IEEE80211_IFACE_ITER_NORMAL,
1117 mac80211_hwsim_tx_iter, &tx_iter_data);
e8261171
JB		 1118 if (!tx_iter_data.receive)
1119 continue;
1120 }
1121
90b9e446
JB		 1122 /*
1123 * reserve some space for our vendor and the normal
1124 * radiotap header, since we're copying anyway
1125 */
a357d7f9
JB		 1126 if (skb->len < PAGE_SIZE && paged_rx) {
1127 struct page *page = alloc_page(GFP_ATOMIC);
1128
1129 if (!page)
1130 continue;
1131
1132 nskb = dev_alloc_skb(128);
1133 if (!nskb) {
1134 __free_page(page);
1135 continue;
1136 }
1137
1138 memcpy(page_address(page), skb->data, skb->len);
1139 skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
1140 } else {
1141 nskb = skb_copy(skb, GFP_ATOMIC);
1142 if (!nskb)
1143 continue;
1144 }
acc1e7a3 1145
265dc7f0 1146 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
0e057d73 1147 ack = true;
f483ad25 1148
b66851c3 1149 rx_status.mactime = now + data2->tsf_offset;
90b9e446 1150
f1d58c25 1151 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
1f7bba79
JB		 1152
1153 mac80211_hwsim_add_vendor_rtap(nskb);
1154
2155c3f8
BG		 1155 data2->rx_pkts++;
1156 data2->rx_bytes += nskb->len;
f1d58c25 1157 ieee80211_rx_irqsafe(data2->hw, nskb);
acc1e7a3 1158 }
0e057d73 1159 spin_unlock(&hwsim_radio_lock);
acc1e7a3 1160
e36cfdc9
JM		 1161 return ack;
1162}
1163
36323f81
TH		 1164static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
1165 struct ieee80211_tx_control *control,
1166 struct sk_buff *skb)
e36cfdc9 1167{
e8261171
JB		 1168 struct mac80211_hwsim_data *data = hw->priv;
1169 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1170 struct ieee80211_chanctx_conf *chanctx_conf;
1171 struct ieee80211_channel *channel;
0e057d73 1172 bool ack;
15e47304 1173 u32 _portid;
e36cfdc9 1174
e8261171 1175 if (WARN_ON(skb->len < 10)) {
e36cfdc9 1176 /* Should not happen; just a sanity check for addr1 use */
fe0f3cd2 1177 ieee80211_free_txskb(hw, skb);
7bb45683 1178 return;
e36cfdc9
JM		 1179 }
1180
361c3e04 1181 if (!data->use_chanctx) {
e8261171
JB		 1182 channel = data->channel;
1183 } else if (txi->hw_queue == 4) {
1184 channel = data->tmp_chan;
1185 } else {
1186 chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf);
1187 if (chanctx_conf)
4bf88530 1188 channel = chanctx_conf->def.chan;
e8261171
JB		 1189 else
1190 channel = NULL;
1191 }
1192
1193 if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
fe0f3cd2 1194 ieee80211_free_txskb(hw, skb);
e8261171
JB		 1195 return;
1196 }
1197
1198 if (data->idle && !data->tmp_chan) {
1199 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
fe0f3cd2 1200 ieee80211_free_txskb(hw, skb);
e8261171
JB		 1201 return;
1202 }
1203
1204 if (txi->control.vif)
1205 hwsim_check_magic(txi->control.vif);
1206 if (control->sta)
1207 hwsim_check_sta_magic(control->sta);
1208
81338410 1209 if (hw->flags & IEEE80211_HW_SUPPORTS_RC_TABLE)
1eb32179
KB		 1210 ieee80211_get_tx_rates(txi->control.vif, control->sta, skb,
1211 txi->control.rates,
1212 ARRAY_SIZE(txi->control.rates));
e8261171 1213
1eb32179 1214 txi->rate_driver_data[0] = channel;
e8261171
JB		 1215 mac80211_hwsim_monitor_rx(hw, skb, channel);
1216
7882513b 1217 /* wmediumd mode check */
15e47304 1218 _portid = ACCESS_ONCE(wmediumd_portid);
7882513b 1219
15e47304
EB		 1220 if (_portid)
1221 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
7882513b
JL		 1222
1223 /* NO wmediumd detected, perfect medium simulation */
2155c3f8
BG		 1224 data->tx_pkts++;
1225 data->tx_bytes += skb->len;
e8261171 1226 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
7882513b 1227
6c085227
JM		 1228 if (ack && skb->len >= 16) {
1229 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
e8261171 1230 mac80211_hwsim_monitor_ack(channel, hdr->addr2);
6c085227 1231 }
e36cfdc9 1232
e6a9854b 1233 ieee80211_tx_info_clear_status(txi);
2a4ffa4c
JC		 1234
1235 /* frame was transmitted at most favorable rate at first attempt */
1236 txi->control.rates[0].count = 1;
1237 txi->control.rates[1].idx = -1;
1238
e6a9854b
JB		 1239 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
1240 txi->flags |= IEEE80211_TX_STAT_ACK;
acc1e7a3 1241 ieee80211_tx_status_irqsafe(hw, skb);
acc1e7a3
JM		 1242}
1243
1244
1245static int mac80211_hwsim_start(struct ieee80211_hw *hw)
1246{
1247 struct mac80211_hwsim_data *data = hw->priv;
c96c31e4 1248 wiphy_debug(hw->wiphy, "%s\n", __func__);
3db1cd5c 1249 data->started = true;
acc1e7a3
JM		 1250 return 0;
1251}
1252
1253
1254static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
1255{
1256 struct mac80211_hwsim_data *data = hw->priv;
3db1cd5c 1257 data->started = false;
01e59e46 1258 tasklet_hrtimer_cancel(&data->beacon_timer);
c96c31e4 1259 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 1260}
1261
1262
1263static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
1ed32e4f 1264 struct ieee80211_vif *vif)
acc1e7a3 1265{
c96c31e4 1266 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 1267 __func__, ieee80211_vif_type_p2p(vif),
1268 vif->addr);
1ed32e4f 1269 hwsim_set_magic(vif);
e8261171
JB		 1270
1271 vif->cab_queue = 0;
1272 vif->hw_queue[IEEE80211_AC_VO] = 0;
1273 vif->hw_queue[IEEE80211_AC_VI] = 1;
1274 vif->hw_queue[IEEE80211_AC_BE] = 2;
1275 vif->hw_queue[IEEE80211_AC_BK] = 3;
1276
acc1e7a3
JM		 1277 return 0;
1278}
1279
1280
c35d0270
JB		 1281static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
1282 struct ieee80211_vif *vif,
2ca27bcf
JB		 1283 enum nl80211_iftype newtype,
1284 bool newp2p)
c35d0270 1285{
2ca27bcf 1286 newtype = ieee80211_iftype_p2p(newtype, newp2p);
c35d0270
JB		 1287 wiphy_debug(hw->wiphy,
1288 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
2ca27bcf
JB		 1289 __func__, ieee80211_vif_type_p2p(vif),
1290 newtype, vif->addr);
c35d0270
JB		 1291 hwsim_check_magic(vif);
1292
3eb92f6a
JB		 1293 /*
1294 * interface may change from non-AP to AP in
1295 * which case this needs to be set up again
1296 */
1297 vif->cab_queue = 0;
1298
c35d0270
JB		 1299 return 0;
1300}
1301
acc1e7a3 1302static void mac80211_hwsim_remove_interface(
1ed32e4f 1303 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
acc1e7a3 1304{
c96c31e4 1305 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 1306 __func__, ieee80211_vif_type_p2p(vif),
1307 vif->addr);
1ed32e4f
JB		 1308 hwsim_check_magic(vif);
1309 hwsim_clear_magic(vif);
acc1e7a3
JM		 1310}
1311
e8261171
JB		 1312static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
1313 struct sk_buff *skb,
1314 struct ieee80211_channel *chan)
1315{
1316 u32 _pid = ACCESS_ONCE(wmediumd_portid);
1317
81338410 1318 if (hw->flags & IEEE80211_HW_SUPPORTS_RC_TABLE) {
1eb32179
KB		 1319 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1320 ieee80211_get_tx_rates(txi->control.vif, NULL, skb,
1321 txi->control.rates,
1322 ARRAY_SIZE(txi->control.rates));
1323 }
1324
e8261171
JB		 1325 mac80211_hwsim_monitor_rx(hw, skb, chan);
1326
1327 if (_pid)
1328 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
1329
1330 mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
1331 dev_kfree_skb(skb);
1332}
acc1e7a3
JM		 1333
1334static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
1335 struct ieee80211_vif *vif)
1336{
b66851c3
TP		 1337 struct mac80211_hwsim_data *data = arg;
1338 struct ieee80211_hw *hw = data->hw;
1339 struct ieee80211_tx_info *info;
1340 struct ieee80211_rate *txrate;
1341 struct ieee80211_mgmt *mgmt;
acc1e7a3 1342 struct sk_buff *skb;
acc1e7a3 1343
8aa21e6f
JB		 1344 hwsim_check_magic(vif);
1345
55b39619 1346 if (vif->type != NL80211_IFTYPE_AP &&
2b2d7795
JB		 1347 vif->type != NL80211_IFTYPE_MESH_POINT &&
1348 vif->type != NL80211_IFTYPE_ADHOC)
acc1e7a3
JM		 1349 return;
1350
1351 skb = ieee80211_beacon_get(hw, vif);
1352 if (skb == NULL)
1353 return;
b66851c3 1354 info = IEEE80211_SKB_CB(skb);
81338410 1355 if (hw->flags & IEEE80211_HW_SUPPORTS_RC_TABLE)
1eb32179
KB		 1356 ieee80211_get_tx_rates(vif, NULL, skb,
1357 info->control.rates,
1358 ARRAY_SIZE(info->control.rates));
1359
b66851c3
TP		 1360 txrate = ieee80211_get_tx_rate(hw, info);
1361
1362 mgmt = (struct ieee80211_mgmt *) skb->data;
1363 /* fake header transmission time */
1364 data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
1365 mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
1366 data->tsf_offset +
1367 24 * 8 * 10 / txrate->bitrate);
7882513b 1368
e8261171 1369 mac80211_hwsim_tx_frame(hw, skb,
4bf88530 1370 rcu_dereference(vif->chanctx_conf)->def.chan);
0037db63
AO		 1371
1372 if (vif->csa_active && ieee80211_csa_is_complete(vif))
1373 ieee80211_csa_finish(vif);
acc1e7a3
JM		 1374}
1375
01e59e46
TP		 1376static enum hrtimer_restart
1377mac80211_hwsim_beacon(struct hrtimer *timer)
acc1e7a3 1378{
01e59e46
TP		 1379 struct mac80211_hwsim_data *data =
1380 container_of(timer, struct mac80211_hwsim_data,
1381 beacon_timer.timer);
1382 struct ieee80211_hw *hw = data->hw;
1383 u64 bcn_int = data->beacon_int;
1384 ktime_t next_bcn;
acc1e7a3 1385
4c4c671a 1386 if (!data->started)
01e59e46 1387 goto out;
acc1e7a3 1388
f248f105 1389 ieee80211_iterate_active_interfaces_atomic(
8b2c9824 1390 hw, IEEE80211_IFACE_ITER_NORMAL,
b66851c3 1391 mac80211_hwsim_beacon_tx, data);
acc1e7a3 1392
c51f8783
TP		 1393 /* beacon at new TBTT + beacon interval */
1394 if (data->bcn_delta) {
1395 bcn_int -= data->bcn_delta;
1396 data->bcn_delta = 0;
1397 }
1398
01e59e46
TP		 1399 next_bcn = ktime_add(hrtimer_get_expires(timer),
1400 ns_to_ktime(bcn_int * 1000));
1401 tasklet_hrtimer_start(&data->beacon_timer, next_bcn, HRTIMER_MODE_ABS);
1402out:
1403 return HRTIMER_NORESTART;
acc1e7a3
JM		 1404}
1405
675a0b04
KB		 1406static const char * const hwsim_chanwidths[] = {
1407 [NL80211_CHAN_WIDTH_20_NOHT] = "noht",
1408 [NL80211_CHAN_WIDTH_20] = "ht20",
1409 [NL80211_CHAN_WIDTH_40] = "ht40",
1410 [NL80211_CHAN_WIDTH_80] = "vht80",
1411 [NL80211_CHAN_WIDTH_80P80] = "vht80p80",
1412 [NL80211_CHAN_WIDTH_160] = "vht160",
0aaffa9b 1413};
acc1e7a3 1414
e8975581 1415static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
acc1e7a3
JM		 1416{
1417 struct mac80211_hwsim_data *data = hw->priv;
e8975581 1418 struct ieee80211_conf *conf = &hw->conf;
0f78231b
JB		 1419 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
1420 [IEEE80211_SMPS_AUTOMATIC] = "auto",
1421 [IEEE80211_SMPS_OFF] = "off",
1422 [IEEE80211_SMPS_STATIC] = "static",
1423 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
1424 };
1425
675a0b04
KB		 1426 if (conf->chandef.chan)
1427 wiphy_debug(hw->wiphy,
1428 "%s (freq=%d(%d - %d)/%s idle=%d ps=%d smps=%s)\n",
1429 __func__,
1430 conf->chandef.chan->center_freq,
1431 conf->chandef.center_freq1,
1432 conf->chandef.center_freq2,
1433 hwsim_chanwidths[conf->chandef.width],
1434 !!(conf->flags & IEEE80211_CONF_IDLE),
1435 !!(conf->flags & IEEE80211_CONF_PS),
1436 smps_modes[conf->smps_mode]);
1437 else
1438 wiphy_debug(hw->wiphy,
1439 "%s (freq=0 idle=%d ps=%d smps=%s)\n",
1440 __func__,
1441 !!(conf->flags & IEEE80211_CONF_IDLE),
1442 !!(conf->flags & IEEE80211_CONF_PS),
1443 smps_modes[conf->smps_mode]);
acc1e7a3 1444
70541839
JM		 1445 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1446
675a0b04 1447 data->channel = conf->chandef.chan;
e8261171 1448
361c3e04 1449 WARN_ON(data->channel && data->use_chanctx);
e8261171 1450
bdd7bd16 1451 data->power_level = conf->power_level;
4c4c671a 1452 if (!data->started || !data->beacon_int)
01e59e46
TP		 1453 tasklet_hrtimer_cancel(&data->beacon_timer);
1454 else if (!hrtimer_is_queued(&data->beacon_timer.timer)) {
c51f8783
TP		 1455 u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
1456 u32 bcn_int = data->beacon_int;
1457 u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1458
01e59e46 1459 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1460 ns_to_ktime(until_tbtt * 1000),
01e59e46
TP		 1461 HRTIMER_MODE_REL);
1462 }
acc1e7a3
JM		 1463
1464 return 0;
1465}
1466
1467
1468static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
1469 unsigned int changed_flags,
3ac64bee 1470 unsigned int *total_flags,u64 multicast)
acc1e7a3
JM		 1471{
1472 struct mac80211_hwsim_data *data = hw->priv;
1473
c96c31e4 1474 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 1475
1476 data->rx_filter = 0;
1477 if (*total_flags & FIF_PROMISC_IN_BSS)
1478 data->rx_filter |= FIF_PROMISC_IN_BSS;
1479 if (*total_flags & FIF_ALLMULTI)
1480 data->rx_filter |= FIF_ALLMULTI;
1481
1482 *total_flags = data->rx_filter;
1483}
1484
0bb861e6
JM		 1485static void mac80211_hwsim_bcn_en_iter(void *data, u8 *mac,
1486 struct ieee80211_vif *vif)
1487{
1488 unsigned int *count = data;
1489 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1490
1491 if (vp->bcn_en)
1492 (*count)++;
1493}
1494
8aa21e6f
JB		 1495static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
1496 struct ieee80211_vif *vif,
1497 struct ieee80211_bss_conf *info,
1498 u32 changed)
1499{
fc6971d4 1500 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
57c4d7b4 1501 struct mac80211_hwsim_data *data = hw->priv;
fc6971d4 1502
8aa21e6f 1503 hwsim_check_magic(vif);
fe63bfa3 1504
0bb861e6
JM		 1505 wiphy_debug(hw->wiphy, "%s(changed=0x%x vif->addr=%pM)\n",
1506 __func__, changed, vif->addr);
fe63bfa3 1507
2d0ddec5 1508 if (changed & BSS_CHANGED_BSSID) {
c96c31e4
JP		 1509 wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
1510 __func__, info->bssid);
2d0ddec5
JB		 1511 memcpy(vp->bssid, info->bssid, ETH_ALEN);
1512 }
1513
fe63bfa3 1514 if (changed & BSS_CHANGED_ASSOC) {
c96c31e4
JP		 1515 wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
1516 info->assoc, info->aid);
fc6971d4
JM		 1517 vp->assoc = info->assoc;
1518 vp->aid = info->aid;
fe63bfa3
JM		 1519 }
1520
57c4d7b4 1521 if (changed & BSS_CHANGED_BEACON_INT) {
c96c31e4 1522 wiphy_debug(hw->wiphy, " BCNINT: %d\n", info->beacon_int);
01e59e46
TP		 1523 data->beacon_int = info->beacon_int * 1024;
1524 }
1525
1526 if (changed & BSS_CHANGED_BEACON_ENABLED) {
1527 wiphy_debug(hw->wiphy, " BCN EN: %d\n", info->enable_beacon);
0bb861e6 1528 vp->bcn_en = info->enable_beacon;
01e59e46
TP		 1529 if (data->started &&
1530 !hrtimer_is_queued(&data->beacon_timer.timer) &&
1531 info->enable_beacon) {
c51f8783
TP		 1532 u64 tsf, until_tbtt;
1533 u32 bcn_int;
01e59e46
TP		 1534 if (WARN_ON(!data->beacon_int))
1535 data->beacon_int = 1000 * 1024;
c51f8783
TP		 1536 tsf = mac80211_hwsim_get_tsf(hw, vif);
1537 bcn_int = data->beacon_int;
1538 until_tbtt = bcn_int - do_div(tsf, bcn_int);
01e59e46 1539 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1540 ns_to_ktime(until_tbtt * 1000),
01e59e46 1541 HRTIMER_MODE_REL);
0bb861e6
JM		 1542 } else if (!info->enable_beacon) {
1543 unsigned int count = 0;
cdb1b805 1544 ieee80211_iterate_active_interfaces_atomic(
0bb861e6
JM		 1545 data->hw, IEEE80211_IFACE_ITER_NORMAL,
1546 mac80211_hwsim_bcn_en_iter, &count);
1547 wiphy_debug(hw->wiphy, " beaconing vifs remaining: %u",
1548 count);
1549 if (count == 0)
1550 tasklet_hrtimer_cancel(&data->beacon_timer);
1551 }
57c4d7b4
JB		 1552 }
1553
fe63bfa3 1554 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
c96c31e4
JP		 1555 wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
1556 info->use_cts_prot);
fe63bfa3
JM		 1557 }
1558
1559 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
c96c31e4
JP		 1560 wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
1561 info->use_short_preamble);
fe63bfa3
JM		 1562 }
1563
1564 if (changed & BSS_CHANGED_ERP_SLOT) {
c96c31e4 1565 wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
fe63bfa3
JM		 1566 }
1567
1568 if (changed & BSS_CHANGED_HT) {
4bf88530
JB		 1569 wiphy_debug(hw->wiphy, " HT: op_mode=0x%x\n",
1570 info->ht_operation_mode);
fe63bfa3
JM		 1571 }
1572
1573 if (changed & BSS_CHANGED_BASIC_RATES) {
c96c31e4
JP		 1574 wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
1575 (unsigned long long) info->basic_rates);
fe63bfa3 1576 }
cbc668a7
JB		 1577
1578 if (changed & BSS_CHANGED_TXPOWER)
1579 wiphy_debug(hw->wiphy, " TX Power: %d dBm\n", info->txpower);
8aa21e6f
JB		 1580}
1581
1d669cbf
JB		 1582static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
1583 struct ieee80211_vif *vif,
1584 struct ieee80211_sta *sta)
1585{
1586 hwsim_check_magic(vif);
1587 hwsim_set_sta_magic(sta);
1588
1589 return 0;
1590}
1591
1592static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
1593 struct ieee80211_vif *vif,
1594 struct ieee80211_sta *sta)
1595{
1596 hwsim_check_magic(vif);
1597 hwsim_clear_sta_magic(sta);
1598
1599 return 0;
1600}
1601
8aa21e6f
JB		 1602static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
1603 struct ieee80211_vif *vif,
17741cdc
JB		 1604 enum sta_notify_cmd cmd,
1605 struct ieee80211_sta *sta)
8aa21e6f
JB		 1606{
1607 hwsim_check_magic(vif);
1d669cbf 1608
81c06523 1609 switch (cmd) {
89fad578
CL		 1610 case STA_NOTIFY_SLEEP:
1611 case STA_NOTIFY_AWAKE:
1612 /* TODO: make good use of these flags */
1613 break;
1d669cbf
JB		 1614 default:
1615 WARN(1, "Invalid sta notify: %d\n", cmd);
1616 break;
81c06523
JB		 1617 }
1618}
1619
1620static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
1621 struct ieee80211_sta *sta,
1622 bool set)
1623{
1624 hwsim_check_sta_magic(sta);
1625 return 0;
8aa21e6f 1626}
acc1e7a3 1627
1e898ff8 1628static int mac80211_hwsim_conf_tx(
8a3a3c85
EP		 1629 struct ieee80211_hw *hw,
1630 struct ieee80211_vif *vif, u16 queue,
1e898ff8
JM		 1631 const struct ieee80211_tx_queue_params *params)
1632{
c96c31e4
JP		 1633 wiphy_debug(hw->wiphy,
1634 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1635 __func__, queue,
1636 params->txop, params->cw_min,
1637 params->cw_max, params->aifs);
1e898ff8
JM		 1638 return 0;
1639}
1640
1289723e
HS		 1641static int mac80211_hwsim_get_survey(
1642 struct ieee80211_hw *hw, int idx,
1643 struct survey_info *survey)
1644{
1645 struct ieee80211_conf *conf = &hw->conf;
1646
c96c31e4 1647 wiphy_debug(hw->wiphy, "%s (idx=%d)\n", __func__, idx);
1289723e
HS		 1648
1649 if (idx != 0)
1650 return -ENOENT;
1651
1652 /* Current channel */
675a0b04 1653 survey->channel = conf->chandef.chan;
1289723e
HS		 1654
1655 /*
1656 * Magically conjured noise level --- this is only ok for simulated hardware.
1657 *
1658 * A real driver which cannot determine the real channel noise MUST NOT
1659 * report any noise, especially not a magically conjured one :-)
1660 */
1661 survey->filled = SURVEY_INFO_NOISE_DBM;
1662 survey->noise = -92;
1663
1664 return 0;
1665}
1666
aff89a9b
JB		 1667#ifdef CONFIG_NL80211_TESTMODE
1668/*
1669 * This section contains example code for using netlink
1670 * attributes with the testmode command in nl80211.
1671 */
1672
1673/* These enums need to be kept in sync with userspace */
1674enum hwsim_testmode_attr {
1675 __HWSIM_TM_ATTR_INVALID = 0,
1676 HWSIM_TM_ATTR_CMD = 1,
1677 HWSIM_TM_ATTR_PS = 2,
1678
1679 /* keep last */
1680 __HWSIM_TM_ATTR_AFTER_LAST,
1681 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1682};
1683
1684enum hwsim_testmode_cmd {
1685 HWSIM_TM_CMD_SET_PS = 0,
1686 HWSIM_TM_CMD_GET_PS = 1,
4d6d0ae2
JB		 1687 HWSIM_TM_CMD_STOP_QUEUES = 2,
1688 HWSIM_TM_CMD_WAKE_QUEUES = 3,
aff89a9b
JB		 1689};
1690
1691static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1692 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1693 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1694};
1695
5bc38193 1696static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
52981cd7 1697 struct ieee80211_vif *vif,
5bc38193 1698 void *data, int len)
aff89a9b
JB		 1699{
1700 struct mac80211_hwsim_data *hwsim = hw->priv;
1701 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1702 struct sk_buff *skb;
1703 int err, ps;
1704
1705 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
1706 hwsim_testmode_policy);
1707 if (err)
1708 return err;
1709
1710 if (!tb[HWSIM_TM_ATTR_CMD])
1711 return -EINVAL;
1712
1713 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1714 case HWSIM_TM_CMD_SET_PS:
1715 if (!tb[HWSIM_TM_ATTR_PS])
1716 return -EINVAL;
1717 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1718 return hwsim_fops_ps_write(hwsim, ps);
1719 case HWSIM_TM_CMD_GET_PS:
1720 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1721 nla_total_size(sizeof(u32)));
1722 if (!skb)
1723 return -ENOMEM;
633c9389
DM		 1724 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
1725 goto nla_put_failure;
aff89a9b 1726 return cfg80211_testmode_reply(skb);
4d6d0ae2
JB		 1727 case HWSIM_TM_CMD_STOP_QUEUES:
1728 ieee80211_stop_queues(hw);
1729 return 0;
1730 case HWSIM_TM_CMD_WAKE_QUEUES:
1731 ieee80211_wake_queues(hw);
1732 return 0;
aff89a9b
JB		 1733 default:
1734 return -EOPNOTSUPP;
1735 }
1736
1737 nla_put_failure:
1738 kfree_skb(skb);
1739 return -ENOBUFS;
1740}
1741#endif
1742
8b73d13a
JB		 1743static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1744 struct ieee80211_vif *vif,
1745 enum ieee80211_ampdu_mlme_action action,
0b01f030
JB		 1746 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
1747 u8 buf_size)
8b73d13a
JB		 1748{
1749 switch (action) {
1750 case IEEE80211_AMPDU_TX_START:
1751 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1752 break;
18b559d5
JB		 1753 case IEEE80211_AMPDU_TX_STOP_CONT:
1754 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1755 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
8b73d13a
JB		 1756 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1757 break;
1758 case IEEE80211_AMPDU_TX_OPERATIONAL:
1759 break;
1760 case IEEE80211_AMPDU_RX_START:
1761 case IEEE80211_AMPDU_RX_STOP:
1762 break;
1763 default:
1764 return -EOPNOTSUPP;
1765 }
1766
1767 return 0;
1768}
1769
77be2c54
EG		 1770static void mac80211_hwsim_flush(struct ieee80211_hw *hw,
1771 struct ieee80211_vif *vif,
1772 u32 queues, bool drop)
a80f7c0b 1773{
7882513b 1774 /* Not implemented, queues only on kernel side */
a80f7c0b
JB		 1775}
1776
e8261171 1777static void hw_scan_work(struct work_struct *work)
69068036 1778{
e8261171
JB		 1779 struct mac80211_hwsim_data *hwsim =
1780 container_of(work, struct mac80211_hwsim_data, hw_scan.work);
1781 struct cfg80211_scan_request *req = hwsim->hw_scan_request;
1782 int dwell, i;
69068036 1783
e8261171
JB		 1784 mutex_lock(&hwsim->mutex);
1785 if (hwsim->scan_chan_idx >= req->n_channels) {
1786 wiphy_debug(hwsim->hw->wiphy, "hw scan complete\n");
1787 ieee80211_scan_completed(hwsim->hw, false);
1788 hwsim->hw_scan_request = NULL;
1789 hwsim->hw_scan_vif = NULL;
1790 hwsim->tmp_chan = NULL;
1791 mutex_unlock(&hwsim->mutex);
1792 return;
1793 }
1794
1795 wiphy_debug(hwsim->hw->wiphy, "hw scan %d MHz\n",
1796 req->channels[hwsim->scan_chan_idx]->center_freq);
1797
1798 hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
8fe02e16 1799 if (hwsim->tmp_chan->flags & IEEE80211_CHAN_NO_IR ||
e8261171
JB		 1800 !req->n_ssids) {
1801 dwell = 120;
1802 } else {
1803 dwell = 30;
1804 /* send probes */
1805 for (i = 0; i < req->n_ssids; i++) {
1806 struct sk_buff *probe;
1807
1808 probe = ieee80211_probereq_get(hwsim->hw,
339467b9 1809 hwsim->scan_addr,
e8261171
JB		 1810 req->ssids[i].ssid,
1811 req->ssids[i].ssid_len,
b9a9ada1 1812 req->ie_len);
e8261171
JB		 1813 if (!probe)
1814 continue;
b9a9ada1
JB		 1815
1816 if (req->ie_len)
1817 memcpy(skb_put(probe, req->ie_len), req->ie,
1818 req->ie_len);
1819
e8261171
JB		 1820 local_bh_disable();
1821 mac80211_hwsim_tx_frame(hwsim->hw, probe,
1822 hwsim->tmp_chan);
1823 local_bh_enable();
1824 }
1825 }
1826 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
1827 msecs_to_jiffies(dwell));
1828 hwsim->scan_chan_idx++;
1829 mutex_unlock(&hwsim->mutex);
69068036
JB		 1830}
1831
1832static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
a060bbfe 1833 struct ieee80211_vif *vif,
c56ef672 1834 struct ieee80211_scan_request *hw_req)
69068036 1835{
e8261171 1836 struct mac80211_hwsim_data *hwsim = hw->priv;
c56ef672 1837 struct cfg80211_scan_request *req = &hw_req->req;
69068036 1838
e8261171
JB		 1839 mutex_lock(&hwsim->mutex);
1840 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1841 mutex_unlock(&hwsim->mutex);
1842 return -EBUSY;
1843 }
1844 hwsim->hw_scan_request = req;
1845 hwsim->hw_scan_vif = vif;
1846 hwsim->scan_chan_idx = 0;
339467b9
JB		 1847 if (req->flags & NL80211_SCAN_FLAG_RANDOM_ADDR)
1848 get_random_mask_addr(hwsim->scan_addr,
1849 hw_req->req.mac_addr,
1850 hw_req->req.mac_addr_mask);
1851 else
1852 memcpy(hwsim->scan_addr, vif->addr, ETH_ALEN);
e8261171 1853 mutex_unlock(&hwsim->mutex);
69068036 1854
e8261171 1855 wiphy_debug(hw->wiphy, "hwsim hw_scan request\n");
69068036 1856
e8261171 1857 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
69068036
JB		 1858
1859 return 0;
1860}
1861
e8261171
JB		 1862static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
1863 struct ieee80211_vif *vif)
1864{
1865 struct mac80211_hwsim_data *hwsim = hw->priv;
1866
1867 wiphy_debug(hw->wiphy, "hwsim cancel_hw_scan\n");
1868
1869 cancel_delayed_work_sync(&hwsim->hw_scan);
1870
1871 mutex_lock(&hwsim->mutex);
1872 ieee80211_scan_completed(hwsim->hw, true);
1873 hwsim->tmp_chan = NULL;
1874 hwsim->hw_scan_request = NULL;
1875 hwsim->hw_scan_vif = NULL;
1876 mutex_unlock(&hwsim->mutex);
1877}
1878
a344d677
JB		 1879static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw,
1880 struct ieee80211_vif *vif,
1881 const u8 *mac_addr)
f74cb0f7
LR		 1882{
1883 struct mac80211_hwsim_data *hwsim = hw->priv;
1884
1885 mutex_lock(&hwsim->mutex);
1886
1887 if (hwsim->scanning) {
1888 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
1889 goto out;
1890 }
1891
1892 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
339467b9
JB		 1893
1894 memcpy(hwsim->scan_addr, mac_addr, ETH_ALEN);
f74cb0f7
LR		 1895 hwsim->scanning = true;
1896
1897out:
1898 mutex_unlock(&hwsim->mutex);
1899}
1900
a344d677
JB		 1901static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw,
1902 struct ieee80211_vif *vif)
f74cb0f7
LR		 1903{
1904 struct mac80211_hwsim_data *hwsim = hw->priv;
1905
1906 mutex_lock(&hwsim->mutex);
1907
1908 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
23ff98fc 1909 hwsim->scanning = false;
339467b9 1910 memset(hwsim->scan_addr, 0, ETH_ALEN);
f74cb0f7
LR		 1911
1912 mutex_unlock(&hwsim->mutex);
1913}
1914
e8261171
JB		 1915static void hw_roc_done(struct work_struct *work)
1916{
1917 struct mac80211_hwsim_data *hwsim =
1918 container_of(work, struct mac80211_hwsim_data, roc_done.work);
1919
1920 mutex_lock(&hwsim->mutex);
1921 ieee80211_remain_on_channel_expired(hwsim->hw);
1922 hwsim->tmp_chan = NULL;
1923 mutex_unlock(&hwsim->mutex);
1924
1925 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC expired\n");
1926}
1927
1928static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
49884568 1929 struct ieee80211_vif *vif,
e8261171 1930 struct ieee80211_channel *chan,
d339d5ca
IP		 1931 int duration,
1932 enum ieee80211_roc_type type)
e8261171
JB		 1933{
1934 struct mac80211_hwsim_data *hwsim = hw->priv;
1935
1936 mutex_lock(&hwsim->mutex);
1937 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1938 mutex_unlock(&hwsim->mutex);
1939 return -EBUSY;
1940 }
1941
1942 hwsim->tmp_chan = chan;
1943 mutex_unlock(&hwsim->mutex);
1944
1945 wiphy_debug(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
1946 chan->center_freq, duration);
1947
1948 ieee80211_ready_on_channel(hw);
1949
1950 ieee80211_queue_delayed_work(hw, &hwsim->roc_done,
1951 msecs_to_jiffies(duration));
1952 return 0;
1953}
1954
1955static int mac80211_hwsim_croc(struct ieee80211_hw *hw)
1956{
1957 struct mac80211_hwsim_data *hwsim = hw->priv;
1958
1959 cancel_delayed_work_sync(&hwsim->roc_done);
1960
1961 mutex_lock(&hwsim->mutex);
1962 hwsim->tmp_chan = NULL;
1963 mutex_unlock(&hwsim->mutex);
1964
1965 wiphy_debug(hw->wiphy, "hwsim ROC canceled\n");
1966
1967 return 0;
1968}
1969
1970static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
1971 struct ieee80211_chanctx_conf *ctx)
1972{
1973 hwsim_set_chanctx_magic(ctx);
4bf88530
JB		 1974 wiphy_debug(hw->wiphy,
1975 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1976 ctx->def.chan->center_freq, ctx->def.width,
1977 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1978 return 0;
1979}
1980
1981static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
1982 struct ieee80211_chanctx_conf *ctx)
1983{
4bf88530
JB		 1984 wiphy_debug(hw->wiphy,
1985 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1986 ctx->def.chan->center_freq, ctx->def.width,
1987 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1988 hwsim_check_chanctx_magic(ctx);
1989 hwsim_clear_chanctx_magic(ctx);
1990}
1991
1992static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
1993 struct ieee80211_chanctx_conf *ctx,
1994 u32 changed)
1995{
1996 hwsim_check_chanctx_magic(ctx);
4bf88530
JB		 1997 wiphy_debug(hw->wiphy,
1998 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1999 ctx->def.chan->center_freq, ctx->def.width,
2000 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 2001}
2002
2003static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
2004 struct ieee80211_vif *vif,
2005 struct ieee80211_chanctx_conf *ctx)
2006{
2007 hwsim_check_magic(vif);
2008 hwsim_check_chanctx_magic(ctx);
2009
2010 return 0;
2011}
2012
2013static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
2014 struct ieee80211_vif *vif,
2015 struct ieee80211_chanctx_conf *ctx)
2016{
2017 hwsim_check_magic(vif);
2018 hwsim_check_chanctx_magic(ctx);
2019}
2020
2155c3f8
BG		 2021static const char mac80211_hwsim_gstrings_stats[][ETH_GSTRING_LEN] = {
2022 "tx_pkts_nic",
2023 "tx_bytes_nic",
2024 "rx_pkts_nic",
2025 "rx_bytes_nic",
2026 "d_tx_dropped",
2027 "d_tx_failed",
2028 "d_ps_mode",
2029 "d_group",
2030 "d_tx_power",
2031};
2032
2033#define MAC80211_HWSIM_SSTATS_LEN ARRAY_SIZE(mac80211_hwsim_gstrings_stats)
2034
2035static void mac80211_hwsim_get_et_strings(struct ieee80211_hw *hw,
2036 struct ieee80211_vif *vif,
2037 u32 sset, u8 *data)
2038{
2039 if (sset == ETH_SS_STATS)
2040 memcpy(data, *mac80211_hwsim_gstrings_stats,
2041 sizeof(mac80211_hwsim_gstrings_stats));
2042}
2043
2044static int mac80211_hwsim_get_et_sset_count(struct ieee80211_hw *hw,
2045 struct ieee80211_vif *vif, int sset)
2046{
2047 if (sset == ETH_SS_STATS)
2048 return MAC80211_HWSIM_SSTATS_LEN;
2049 return 0;
2050}
2051
2052static void mac80211_hwsim_get_et_stats(struct ieee80211_hw *hw,
2053 struct ieee80211_vif *vif,
2054 struct ethtool_stats *stats, u64 *data)
2055{
2056 struct mac80211_hwsim_data *ar = hw->priv;
2057 int i = 0;
2058
2059 data[i++] = ar->tx_pkts;
2060 data[i++] = ar->tx_bytes;
2061 data[i++] = ar->rx_pkts;
2062 data[i++] = ar->rx_bytes;
2063 data[i++] = ar->tx_dropped;
2064 data[i++] = ar->tx_failed;
2065 data[i++] = ar->ps;
2066 data[i++] = ar->group;
2067 data[i++] = ar->power_level;
2068
2069 WARN_ON(i != MAC80211_HWSIM_SSTATS_LEN);
2070}
2071
38ed5048 2072static const struct ieee80211_ops mac80211_hwsim_ops = {
acc1e7a3
JM		 2073 .tx = mac80211_hwsim_tx,
2074 .start = mac80211_hwsim_start,
2075 .stop = mac80211_hwsim_stop,
2076 .add_interface = mac80211_hwsim_add_interface,
c35d0270 2077 .change_interface = mac80211_hwsim_change_interface,
acc1e7a3
JM		 2078 .remove_interface = mac80211_hwsim_remove_interface,
2079 .config = mac80211_hwsim_config,
2080 .configure_filter = mac80211_hwsim_configure_filter,
8aa21e6f 2081 .bss_info_changed = mac80211_hwsim_bss_info_changed,
1d669cbf
JB		 2082 .sta_add = mac80211_hwsim_sta_add,
2083 .sta_remove = mac80211_hwsim_sta_remove,
8aa21e6f 2084 .sta_notify = mac80211_hwsim_sta_notify,
81c06523 2085 .set_tim = mac80211_hwsim_set_tim,
1e898ff8 2086 .conf_tx = mac80211_hwsim_conf_tx,
1289723e 2087 .get_survey = mac80211_hwsim_get_survey,
aff89a9b 2088 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
8b73d13a 2089 .ampdu_action = mac80211_hwsim_ampdu_action,
f74cb0f7
LR		 2090 .sw_scan_start = mac80211_hwsim_sw_scan,
2091 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
a80f7c0b 2092 .flush = mac80211_hwsim_flush,
12ce8ba3
JC		 2093 .get_tsf = mac80211_hwsim_get_tsf,
2094 .set_tsf = mac80211_hwsim_set_tsf,
2155c3f8
BG		 2095 .get_et_sset_count = mac80211_hwsim_get_et_sset_count,
2096 .get_et_stats = mac80211_hwsim_get_et_stats,
2097 .get_et_strings = mac80211_hwsim_get_et_strings,
acc1e7a3
JM		 2098};
2099
38ed5048 2100static struct ieee80211_ops mac80211_hwsim_mchan_ops;
acc1e7a3 2101
62759361
JR		 2102struct hwsim_new_radio_params {
2103 unsigned int channels;
2104 const char *reg_alpha2;
2105 const struct ieee80211_regdomain *regd;
2106 bool reg_strict;
2107 bool p2p_device;
2108 bool use_chanctx;
2109 bool destroy_on_close;
2110 const char *hwname;
2111 bool no_vif;
2112};
2113
2114static void hwsim_mcast_config_msg(struct sk_buff *mcast_skb,
2115 struct genl_info *info)
2116{
2117 if (info)
2118 genl_notify(&hwsim_genl_family, mcast_skb,
2119 genl_info_net(info), info->snd_portid,
2120 HWSIM_MCGRP_CONFIG, info->nlhdr, GFP_KERNEL);
2121 else
2122 genlmsg_multicast(&hwsim_genl_family, mcast_skb, 0,
2123 HWSIM_MCGRP_CONFIG, GFP_KERNEL);
2124}
2125
2126static struct sk_buff *build_radio_msg(int cmd, int id,
2127 struct hwsim_new_radio_params *param)
2128{
2129 struct sk_buff *skb;
2130 void *data;
2131 int ret;
2132
2133 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
2134 if (!skb)
2135 return NULL;
2136
2137 data = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0, cmd);
2138 if (!data)
2139 goto error;
2140
2141 ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
2142 if (ret < 0)
2143 goto error;
2144
2145 if (param->channels) {
2146 ret = nla_put_u32(skb, HWSIM_ATTR_CHANNELS, param->channels);
2147 if (ret < 0)
2148 goto error;
2149 }
2150
2151 if (param->reg_alpha2) {
2152 ret = nla_put(skb, HWSIM_ATTR_REG_HINT_ALPHA2, 2,
2153 param->reg_alpha2);
2154 if (ret < 0)
2155 goto error;
2156 }
2157
2158 if (param->regd) {
2159 int i;
2160
2161 for (i = 0; hwsim_world_regdom_custom[i] != param->regd &&
2162 i < ARRAY_SIZE(hwsim_world_regdom_custom); i++)
2163 ;
2164
2165 if (i < ARRAY_SIZE(hwsim_world_regdom_custom)) {
2166 ret = nla_put_u32(skb, HWSIM_ATTR_REG_CUSTOM_REG, i);
2167 if (ret < 0)
2168 goto error;
2169 }
2170 }
2171
2172 if (param->reg_strict) {
2173 ret = nla_put_flag(skb, HWSIM_ATTR_REG_STRICT_REG);
2174 if (ret < 0)
2175 goto error;
2176 }
2177
2178 if (param->p2p_device) {
2179 ret = nla_put_flag(skb, HWSIM_ATTR_SUPPORT_P2P_DEVICE);
2180 if (ret < 0)
2181 goto error;
2182 }
2183
2184 if (param->use_chanctx) {
2185 ret = nla_put_flag(skb, HWSIM_ATTR_USE_CHANCTX);
2186 if (ret < 0)
2187 goto error;
2188 }
2189
2190 if (param->hwname) {
2191 ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME,
2192 strlen(param->hwname), param->hwname);
2193 if (ret < 0)
2194 goto error;
2195 }
2196
2197 genlmsg_end(skb, data);
2198
2199 return skb;
2200
2201error:
2202 nlmsg_free(skb);
2203 return NULL;
2204}
2205
2206static void hswim_mcast_new_radio(int id, struct genl_info *info,
2207 struct hwsim_new_radio_params *param)
2208{
2209 struct sk_buff *mcast_skb;
2210
2211 mcast_skb = build_radio_msg(HWSIM_CMD_NEW_RADIO, id, param);
2212 if (!mcast_skb)
2213 return;
2214
2215 hwsim_mcast_config_msg(mcast_skb, info);
2216}
2217
2218static int mac80211_hwsim_new_radio(struct genl_info *info,
2219 struct hwsim_new_radio_params *param)
acc1e7a3 2220{
de0421d5
JB		 2221 int err;
2222 u8 addr[ETH_ALEN];
e4afb603 2223 struct mac80211_hwsim_data *data;
de0421d5
JB		 2224 struct ieee80211_hw *hw;
2225 enum ieee80211_band band;
2226 const struct ieee80211_ops *ops = &mac80211_hwsim_ops;
2227 int idx;
0e057d73 2228
62759361 2229 if (WARN_ON(param->channels > 1 && !param->use_chanctx))
361c3e04
LC		 2230 return -EINVAL;
2231
0e057d73 2232 spin_lock_bh(&hwsim_radio_lock);
de0421d5 2233 idx = hwsim_radio_idx++;
0e057d73
JB		 2234 spin_unlock_bh(&hwsim_radio_lock);
2235
62759361 2236 if (param->use_chanctx)
de0421d5 2237 ops = &mac80211_hwsim_mchan_ops;
62759361 2238 hw = ieee80211_alloc_hw_nm(sizeof(*data), ops, param->hwname);
de0421d5
JB		 2239 if (!hw) {
2240 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw failed\n");
2241 err = -ENOMEM;
2242 goto failed;
2243 }
2244 data = hw->priv;
2245 data->hw = hw;
acc1e7a3 2246
de0421d5
JB		 2247 data->dev = device_create(hwsim_class, NULL, 0, hw, "hwsim%d", idx);
2248 if (IS_ERR(data->dev)) {
2249 printk(KERN_DEBUG
2250 "mac80211_hwsim: device_create failed (%ld)\n",
2251 PTR_ERR(data->dev));
2252 err = -ENOMEM;
2253 goto failed_drvdata;
2254 }
2255 data->dev->driver = &mac80211_hwsim_driver.driver;
2256 err = device_bind_driver(data->dev);
2257 if (err != 0) {
2258 printk(KERN_DEBUG "mac80211_hwsim: device_bind_driver failed (%d)\n",
2259 err);
2260 goto failed_hw;
acc1e7a3 2261 }
acc1e7a3 2262
de0421d5 2263 skb_queue_head_init(&data->pending);
acc1e7a3 2264
de0421d5
JB		 2265 SET_IEEE80211_DEV(hw, data->dev);
2266 memset(addr, 0, ETH_ALEN);
2267 addr[0] = 0x02;
2268 addr[3] = idx >> 8;
2269 addr[4] = idx;
2270 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
2271 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
2272 data->addresses[1].addr[0] |= 0x40;
2273 hw->wiphy->n_addresses = 2;
2274 hw->wiphy->addresses = data->addresses;
fc6971d4 2275
62759361
JR		 2276 data->channels = param->channels;
2277 data->use_chanctx = param->use_chanctx;
bc791098 2278 data->idx = idx;
62759361
JR		 2279 data->destroy_on_close = param->destroy_on_close;
2280 if (info)
2281 data->portid = info->snd_portid;
fc6971d4 2282
361c3e04 2283 if (data->use_chanctx) {
de0421d5
JB		 2284 hw->wiphy->max_scan_ssids = 255;
2285 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
2286 hw->wiphy->max_remain_on_channel_duration = 1000;
2287 /* For channels > 1 DFS is not allowed */
2288 hw->wiphy->n_iface_combinations = 1;
2289 hw->wiphy->iface_combinations = &data->if_combination;
62759361 2290 if (param->p2p_device)
8c66a3d9
JB		 2291 data->if_combination = hwsim_if_comb_p2p_dev[0];
2292 else
2293 data->if_combination = hwsim_if_comb[0];
b59ec8dd 2294 data->if_combination.num_different_channels = data->channels;
62759361 2295 } else if (param->p2p_device) {
8c66a3d9
JB		 2296 hw->wiphy->iface_combinations = hwsim_if_comb_p2p_dev;
2297 hw->wiphy->n_iface_combinations =
2298 ARRAY_SIZE(hwsim_if_comb_p2p_dev);
de0421d5
JB		 2299 } else {
2300 hw->wiphy->iface_combinations = hwsim_if_comb;
2301 hw->wiphy->n_iface_combinations = ARRAY_SIZE(hwsim_if_comb);
2302 }
acc1e7a3 2303
de0421d5
JB		 2304 INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
2305 INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
7882513b 2306
de0421d5
JB		 2307 hw->queues = 5;
2308 hw->offchannel_tx_hw_queue = 4;
2309 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2310 BIT(NL80211_IFTYPE_AP) |
2311 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2312 BIT(NL80211_IFTYPE_P2P_GO) |
2313 BIT(NL80211_IFTYPE_ADHOC) |
8c66a3d9
JB		 2314 BIT(NL80211_IFTYPE_MESH_POINT);
2315
62759361 2316 if (param->p2p_device)
8c66a3d9 2317 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_DEVICE);
fc6971d4 2318
de0421d5
JB		 2319 hw->flags = IEEE80211_HW_MFP_CAPABLE |
2320 IEEE80211_HW_SIGNAL_DBM |
de0421d5
JB		 2321 IEEE80211_HW_AMPDU_AGGREGATION |
2322 IEEE80211_HW_WANT_MONITOR_VIF |
2323 IEEE80211_HW_QUEUE_CONTROL |
0037db63
AO		 2324 IEEE80211_HW_SUPPORTS_HT_CCK_RATES |
2325 IEEE80211_HW_CHANCTX_STA_CSA;
de0421d5
JB		 2326 if (rctbl)
2327 hw->flags |= IEEE80211_HW_SUPPORTS_RC_TABLE;
fc6971d4 2328
de0421d5
JB		 2329 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2330 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
0037db63
AO		 2331 WIPHY_FLAG_AP_UAPSD |
2332 WIPHY_FLAG_HAS_CHANNEL_SWITCH;
0d8614b4
EP		 2333 hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR |
2334 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
2335 NL80211_FEATURE_STATIC_SMPS |
339467b9
JB		 2336 NL80211_FEATURE_DYNAMIC_SMPS |
2337 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
fc6971d4 2338
de0421d5
JB		 2339 /* ask mac80211 to reserve space for magic */
2340 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
2341 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
2342 hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
fc6971d4 2343
de0421d5
JB		 2344 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
2345 sizeof(hwsim_channels_2ghz));
2346 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
2347 sizeof(hwsim_channels_5ghz));
2348 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
7882513b 2349
de0421d5
JB		 2350 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
2351 struct ieee80211_supported_band *sband = &data->bands[band];
2352 switch (band) {
2353 case IEEE80211_BAND_2GHZ:
2354 sband->channels = data->channels_2ghz;
2355 sband->n_channels = ARRAY_SIZE(hwsim_channels_2ghz);
2356 sband->bitrates = data->rates;
2357 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
2358 break;
2359 case IEEE80211_BAND_5GHZ:
2360 sband->channels = data->channels_5ghz;
2361 sband->n_channels = ARRAY_SIZE(hwsim_channels_5ghz);
2362 sband->bitrates = data->rates + 4;
2363 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
2364 break;
2365 default:
2366 continue;
2367 }
acc1e7a3 2368
de0421d5
JB		 2369 sband->ht_cap.ht_supported = true;
2370 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
2371 IEEE80211_HT_CAP_GRN_FLD |
e49786db 2372 IEEE80211_HT_CAP_SGI_20 |
de0421d5
JB		 2373 IEEE80211_HT_CAP_SGI_40 |
2374 IEEE80211_HT_CAP_DSSSCCK40;
2375 sband->ht_cap.ampdu_factor = 0x3;
2376 sband->ht_cap.ampdu_density = 0x6;
2377 memset(&sband->ht_cap.mcs, 0,
2378 sizeof(sband->ht_cap.mcs));
2379 sband->ht_cap.mcs.rx_mask[0] = 0xff;
2380 sband->ht_cap.mcs.rx_mask[1] = 0xff;
2381 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
fc6971d4 2382
de0421d5 2383 hw->wiphy->bands[band] = sband;
fc6971d4 2384
de0421d5
JB		 2385 sband->vht_cap.vht_supported = true;
2386 sband->vht_cap.cap =
2387 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
2388 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
2389 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ |
2390 IEEE80211_VHT_CAP_RXLDPC |
2391 IEEE80211_VHT_CAP_SHORT_GI_80 |
2392 IEEE80211_VHT_CAP_SHORT_GI_160 |
2393 IEEE80211_VHT_CAP_TXSTBC |
2394 IEEE80211_VHT_CAP_RXSTBC_1 |
2395 IEEE80211_VHT_CAP_RXSTBC_2 |
2396 IEEE80211_VHT_CAP_RXSTBC_3 |
2397 IEEE80211_VHT_CAP_RXSTBC_4 |
2398 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
2399 sband->vht_cap.vht_mcs.rx_mcs_map =
2400 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_8 << 0 |
2401 IEEE80211_VHT_MCS_SUPPORT_0_8 << 2 |
2402 IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
2403 IEEE80211_VHT_MCS_SUPPORT_0_8 << 6 |
2404 IEEE80211_VHT_MCS_SUPPORT_0_8 << 8 |
2405 IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
2406 IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
2407 IEEE80211_VHT_MCS_SUPPORT_0_8 << 14);
2408 sband->vht_cap.vht_mcs.tx_mcs_map =
2409 sband->vht_cap.vht_mcs.rx_mcs_map;
2410 }
acc1e7a3 2411
de0421d5
JB		 2412 /* By default all radios belong to the first group */
2413 data->group = 1;
2414 mutex_init(&data->mutex);
fc6971d4 2415
de0421d5
JB		 2416 /* Enable frame retransmissions for lossy channels */
2417 hw->max_rates = 4;
2418 hw->max_rate_tries = 11;
fc6971d4 2419
62759361 2420 if (param->reg_strict)
26b0e411 2421 hw->wiphy->regulatory_flags |= REGULATORY_STRICT_REG;
62759361 2422 if (param->regd) {
26b0e411 2423 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
62759361 2424 wiphy_apply_custom_regulatory(hw->wiphy, param->regd);
26b0e411
JB		 2425 /* give the regulatory workqueue a chance to run */
2426 schedule_timeout_interruptible(1);
2427 }
fc6971d4 2428
62759361 2429 if (param->no_vif)
9a0cb89a
BG		 2430 hw->flags |= IEEE80211_HW_NO_AUTO_VIF;
2431
de0421d5
JB		 2432 err = ieee80211_register_hw(hw);
2433 if (err < 0) {
2434 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_register_hw failed (%d)\n",
2435 err);
2436 goto failed_hw;
2437 }
fc6971d4 2438
de0421d5 2439 wiphy_debug(hw->wiphy, "hwaddr %pM registered\n", hw->wiphy->perm_addr);
fc6971d4 2440
62759361
JR		 2441 if (param->reg_alpha2)
2442 regulatory_hint(hw->wiphy, param->reg_alpha2);
7882513b 2443
de0421d5
JB		 2444 data->debugfs = debugfs_create_dir("hwsim", hw->wiphy->debugfsdir);
2445 debugfs_create_file("ps", 0666, data->debugfs, data, &hwsim_fops_ps);
2446 debugfs_create_file("group", 0666, data->debugfs, data,
2447 &hwsim_fops_group);
361c3e04 2448 if (!data->use_chanctx)
de0421d5
JB		 2449 debugfs_create_file("dfs_simulate_radar", 0222,
2450 data->debugfs,
2451 data, &hwsim_simulate_radar);
fc6971d4 2452
de0421d5
JB		 2453 tasklet_hrtimer_init(&data->beacon_timer,
2454 mac80211_hwsim_beacon,
2455 CLOCK_MONOTONIC_RAW, HRTIMER_MODE_ABS);
fc6971d4 2456
de0421d5
JB		 2457 spin_lock_bh(&hwsim_radio_lock);
2458 list_add_tail(&data->list, &hwsim_radios);
2459 spin_unlock_bh(&hwsim_radio_lock);
fc6971d4 2460
62759361
JR		 2461 if (idx > 0)
2462 hswim_mcast_new_radio(idx, info, param);
2463
bc791098 2464 return idx;
fc6971d4 2465
de0421d5
JB		 2466failed_hw:
2467 device_unregister(data->dev);
2468failed_drvdata:
2469 ieee80211_free_hw(hw);
2470failed:
2471 return err;
fc6971d4
JM		 2472}
2473
579a05f2
JR		 2474static void hwsim_mcast_del_radio(int id, const char *hwname,
2475 struct genl_info *info)
fc6971d4 2476{
579a05f2
JR		 2477 struct sk_buff *skb;
2478 void *data;
2479 int ret;
2480
2481 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
2482 if (!skb)
2483 return;
2484
2485 data = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
2486 HWSIM_CMD_DEL_RADIO);
2487 if (!data)
2488 goto error;
2489
2490 ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
2491 if (ret < 0)
2492 goto error;
2493
b9995f83
JR		 2494 ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME, strlen(hwname),
2495 hwname);
2496 if (ret < 0)
2497 goto error;
579a05f2
JR		 2498
2499 genlmsg_end(skb, data);
2500
2501 hwsim_mcast_config_msg(skb, info);
2502
2503 return;
2504
2505error:
2506 nlmsg_free(skb);
2507}
2508
2509static void mac80211_hwsim_del_radio(struct mac80211_hwsim_data *data,
2510 const char *hwname,
2511 struct genl_info *info)
2512{
2513 hwsim_mcast_del_radio(data->idx, hwname, info);
de0421d5
JB		 2514 debugfs_remove_recursive(data->debugfs);
2515 ieee80211_unregister_hw(data->hw);
2516 device_release_driver(data->dev);
2517 device_unregister(data->dev);
2518 ieee80211_free_hw(data->hw);
fc6971d4
JM		 2519}
2520
de0421d5 2521static void mac80211_hwsim_free(void)
fc6971d4 2522{
de0421d5 2523 struct mac80211_hwsim_data *data;
fc6971d4 2524
de0421d5
JB		 2525 spin_lock_bh(&hwsim_radio_lock);
2526 while ((data = list_first_entry_or_null(&hwsim_radios,
2527 struct mac80211_hwsim_data,
2528 list))) {
2529 list_del(&data->list);
2530 spin_unlock_bh(&hwsim_radio_lock);
b9995f83
JR		 2531 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
2532 NULL);
de0421d5 2533 spin_lock_bh(&hwsim_radio_lock);
fc6971d4 2534 }
de0421d5
JB		 2535 spin_unlock_bh(&hwsim_radio_lock);
2536 class_destroy(hwsim_class);
bba05e3d
JD		 2537}
2538
de0421d5
JB		 2539static const struct net_device_ops hwsim_netdev_ops = {
2540 .ndo_start_xmit = hwsim_mon_xmit,
2541 .ndo_change_mtu = eth_change_mtu,
2542 .ndo_set_mac_address = eth_mac_addr,
2543 .ndo_validate_addr = eth_validate_addr,
2544};
73606d00 2545
de0421d5 2546static void hwsim_mon_setup(struct net_device *dev)
73606d00 2547{
de0421d5
JB		 2548 dev->netdev_ops = &hwsim_netdev_ops;
2549 dev->destructor = free_netdev;
2550 ether_setup(dev);
2551 dev->tx_queue_len = 0;
2552 dev->type = ARPHRD_IEEE80211_RADIOTAP;
2553 memset(dev->dev_addr, 0, ETH_ALEN);
2554 dev->dev_addr[0] = 0x12;
73606d00
DW		 2555}
2556
9ddd12af 2557static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(const u8 *addr)
7882513b
JL		 2558{
2559 struct mac80211_hwsim_data *data;
2560 bool _found = false;
2561
2562 spin_lock_bh(&hwsim_radio_lock);
2563 list_for_each_entry(data, &hwsim_radios, list) {
9ddd12af 2564 if (memcmp(data->addresses[1].addr, addr, ETH_ALEN) == 0) {
7882513b
JL		 2565 _found = true;
2566 break;
2567 }
2568 }
2569 spin_unlock_bh(&hwsim_radio_lock);
2570
2571 if (!_found)
2572 return NULL;
2573
2574 return data;
2575}
2576
2577static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
2578 struct genl_info *info)
2579{
2580
2581 struct ieee80211_hdr *hdr;
2582 struct mac80211_hwsim_data *data2;
2583 struct ieee80211_tx_info *txi;
2584 struct hwsim_tx_rate *tx_attempts;
d0f718c1 2585 unsigned long ret_skb_ptr;
7882513b 2586 struct sk_buff *skb, *tmp;
9ddd12af 2587 const u8 *src;
7882513b 2588 unsigned int hwsim_flags;
7882513b
JL		 2589 int i;
2590 bool found = false;
2591
85ca8fc7
JB		 2592 if (info->snd_portid != wmediumd_portid)
2593 return -EINVAL;
2594
7882513b 2595 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
9ddd12af
JB		 2596 !info->attrs[HWSIM_ATTR_FLAGS] ||
2597 !info->attrs[HWSIM_ATTR_COOKIE] ||
2598 !info->attrs[HWSIM_ATTR_TX_INFO])
7882513b
JL		 2599 goto out;
2600
9ddd12af 2601 src = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
7882513b 2602 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
d0f718c1 2603 ret_skb_ptr = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
7882513b
JL		 2604
2605 data2 = get_hwsim_data_ref_from_addr(src);
9ddd12af 2606 if (!data2)
7882513b
JL		 2607 goto out;
2608
2609 /* look for the skb matching the cookie passed back from user */
2610 skb_queue_walk_safe(&data2->pending, skb, tmp) {
d0f718c1 2611 if ((unsigned long)skb == ret_skb_ptr) {
7882513b
JL		 2612 skb_unlink(skb, &data2->pending);
2613 found = true;
2614 break;
2615 }
2616 }
2617
2618 /* not found */
2619 if (!found)
2620 goto out;
2621
2622 /* Tx info received because the frame was broadcasted on user space,
2623 so we get all the necessary info: tx attempts and skb control buff */
2624
2625 tx_attempts = (struct hwsim_tx_rate *)nla_data(
2626 info->attrs[HWSIM_ATTR_TX_INFO]);
2627
2628 /* now send back TX status */
2629 txi = IEEE80211_SKB_CB(skb);
2630
7882513b
JL		 2631 ieee80211_tx_info_clear_status(txi);
2632
2633 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
2634 txi->status.rates[i].idx = tx_attempts[i].idx;
2635 txi->status.rates[i].count = tx_attempts[i].count;
2636 /*txi->status.rates[i].flags = 0;*/
2637 }
2638
2639 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
2640
2641 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
2642 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
2643 if (skb->len >= 16) {
2644 hdr = (struct ieee80211_hdr *) skb->data;
c0e30763 2645 mac80211_hwsim_monitor_ack(data2->channel,
e8261171 2646 hdr->addr2);
7882513b 2647 }
06cf5c4c 2648 txi->flags |= IEEE80211_TX_STAT_ACK;
7882513b
JL		 2649 }
2650 ieee80211_tx_status_irqsafe(data2->hw, skb);
2651 return 0;
2652out:
2653 return -EINVAL;
2654
2655}
2656
2657static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
2658 struct genl_info *info)
2659{
e8261171 2660 struct mac80211_hwsim_data *data2;
7882513b 2661 struct ieee80211_rx_status rx_status;
9ddd12af 2662 const u8 *dst;
7882513b 2663 int frame_data_len;
9ddd12af 2664 void *frame_data;
7882513b
JL		 2665 struct sk_buff *skb = NULL;
2666
85ca8fc7
JB		 2667 if (info->snd_portid != wmediumd_portid)
2668 return -EINVAL;
2669
7882513b 2670 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
e8261171
JB		 2671 !info->attrs[HWSIM_ATTR_FRAME] ||
2672 !info->attrs[HWSIM_ATTR_RX_RATE] ||
2673 !info->attrs[HWSIM_ATTR_SIGNAL])
7882513b
JL		 2674 goto out;
2675
9ddd12af 2676 dst = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
7882513b 2677 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
9ddd12af 2678 frame_data = (void *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
7882513b
JL		 2679
2680 /* Allocate new skb here */
2681 skb = alloc_skb(frame_data_len, GFP_KERNEL);
2682 if (skb == NULL)
2683 goto err;
2684
9ddd12af 2685 if (frame_data_len > IEEE80211_MAX_DATA_LEN)
7882513b
JL		 2686 goto err;
2687
9ddd12af
JB		 2688 /* Copy the data */
2689 memcpy(skb_put(skb, frame_data_len), frame_data, frame_data_len);
7882513b 2690
9ddd12af
JB		 2691 data2 = get_hwsim_data_ref_from_addr(dst);
2692 if (!data2)
7882513b
JL		 2693 goto out;
2694
2695 /* check if radio is configured properly */
2696
e8261171 2697 if (data2->idle || !data2->started)
7882513b
JL		 2698 goto out;
2699
9ddd12af 2700 /* A frame is received from user space */
7882513b 2701 memset(&rx_status, 0, sizeof(rx_status));
4f86ed8f
BG		 2702 /* TODO: Check ATTR_FREQ if it exists, and maybe throw away off-channel
2703 * packets?
2704 */
7882513b
JL		 2705 rx_status.freq = data2->channel->center_freq;
2706 rx_status.band = data2->channel->band;
2707 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
2708 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
2709
2710 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
2155c3f8
BG		 2711 data2->rx_pkts++;
2712 data2->rx_bytes += skb->len;
7882513b
JL		 2713 ieee80211_rx_irqsafe(data2->hw, skb);
2714
2715 return 0;
2716err:
c393862f 2717 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 2718out:
2719 dev_kfree_skb(skb);
2720 return -EINVAL;
2721}
2722
2723static int hwsim_register_received_nl(struct sk_buff *skb_2,
2724 struct genl_info *info)
2725{
c5ac0854
JB		 2726 struct mac80211_hwsim_data *data;
2727 int chans = 1;
2728
2729 spin_lock_bh(&hwsim_radio_lock);
2730 list_for_each_entry(data, &hwsim_radios, list)
2731 chans = max(chans, data->channels);
2732 spin_unlock_bh(&hwsim_radio_lock);
2733
2734 /* In the future we should revise the userspace API and allow it
2735 * to set a flag that it does support multi-channel, then we can
2736 * let this pass conditionally on the flag.
2737 * For current userspace, prohibit it since it won't work right.
2738 */
2739 if (chans > 1)
2740 return -EOPNOTSUPP;
2741
85ca8fc7
JB		 2742 if (wmediumd_portid)
2743 return -EBUSY;
7882513b 2744
15e47304 2745 wmediumd_portid = info->snd_portid;
7882513b
JL		 2746
2747 printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
15e47304 2748 "switching to wmediumd mode with pid %d\n", info->snd_portid);
7882513b
JL		 2749
2750 return 0;
7882513b
JL		 2751}
2752
62759361 2753static int hwsim_new_radio_nl(struct sk_buff *msg, struct genl_info *info)
bc791098 2754{
62759361
JR		 2755 struct hwsim_new_radio_params param = { 0 };
2756
2757 param.reg_strict = info->attrs[HWSIM_ATTR_REG_STRICT_REG];
2758 param.p2p_device = info->attrs[HWSIM_ATTR_SUPPORT_P2P_DEVICE];
2759 param.channels = channels;
2760 param.destroy_on_close =
2761 info->attrs[HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE];
bc791098
JB		 2762
2763 if (info->attrs[HWSIM_ATTR_CHANNELS])
62759361 2764 param.channels = nla_get_u32(info->attrs[HWSIM_ATTR_CHANNELS]);
bc791098 2765
9a0cb89a 2766 if (info->attrs[HWSIM_ATTR_NO_VIF])
62759361 2767 param.no_vif = true;
9a0cb89a 2768
5cd8926b 2769 if (info->attrs[HWSIM_ATTR_RADIO_NAME])
62759361 2770 param.hwname = nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]);
5cd8926b 2771
361c3e04 2772 if (info->attrs[HWSIM_ATTR_USE_CHANCTX])
62759361 2773 param.use_chanctx = true;
361c3e04 2774 else
62759361 2775 param.use_chanctx = (param.channels > 1);
361c3e04 2776
26b0e411 2777 if (info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2])
62759361
JR		 2778 param.reg_alpha2 =
2779 nla_data(info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2]);
26b0e411
JB		 2780
2781 if (info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]) {
2782 u32 idx = nla_get_u32(info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]);
2783
2784 if (idx >= ARRAY_SIZE(hwsim_world_regdom_custom))
2785 return -EINVAL;
62759361 2786 param.regd = hwsim_world_regdom_custom[idx];
26b0e411
JB		 2787 }
2788
62759361 2789 return mac80211_hwsim_new_radio(info, &param);
bc791098
JB		 2790}
2791
579a05f2 2792static int hwsim_del_radio_nl(struct sk_buff *msg, struct genl_info *info)
bc791098
JB		 2793{
2794 struct mac80211_hwsim_data *data;
8cdd9e1c
BG		 2795 s64 idx = -1;
2796 const char *hwname = NULL;
bc791098 2797
8cdd9e1c
BG		 2798 if (info->attrs[HWSIM_ATTR_RADIO_ID])
2799 idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
2800 else if (info->attrs[HWSIM_ATTR_RADIO_NAME])
2801 hwname = (void *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]);
2802 else
bc791098 2803 return -EINVAL;
bc791098
JB		 2804
2805 spin_lock_bh(&hwsim_radio_lock);
2806 list_for_each_entry(data, &hwsim_radios, list) {
8cdd9e1c
BG		 2807 if (idx >= 0) {
2808 if (data->idx != idx)
2809 continue;
2810 } else {
2811 if (hwname &&
2812 strcmp(hwname, wiphy_name(data->hw->wiphy)))
2813 continue;
2814 }
2815
bc791098
JB		 2816 list_del(&data->list);
2817 spin_unlock_bh(&hwsim_radio_lock);
b9995f83
JR		 2818 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
2819 info);
bc791098
JB		 2820 return 0;
2821 }
2822 spin_unlock_bh(&hwsim_radio_lock);
2823
2824 return -ENODEV;
7882513b
JL		 2825}
2826
2827/* Generic Netlink operations array */
4534de83 2828static const struct genl_ops hwsim_ops[] = {
7882513b
JL		 2829 {
2830 .cmd = HWSIM_CMD_REGISTER,
2831 .policy = hwsim_genl_policy,
2832 .doit = hwsim_register_received_nl,
2833 .flags = GENL_ADMIN_PERM,
2834 },
2835 {
2836 .cmd = HWSIM_CMD_FRAME,
2837 .policy = hwsim_genl_policy,
2838 .doit = hwsim_cloned_frame_received_nl,
2839 },
2840 {
2841 .cmd = HWSIM_CMD_TX_INFO_FRAME,
2842 .policy = hwsim_genl_policy,
2843 .doit = hwsim_tx_info_frame_received_nl,
2844 },
bc791098 2845 {
62759361 2846 .cmd = HWSIM_CMD_NEW_RADIO,
bc791098 2847 .policy = hwsim_genl_policy,
62759361 2848 .doit = hwsim_new_radio_nl,
bc791098
JB		 2849 .flags = GENL_ADMIN_PERM,
2850 },
2851 {
579a05f2 2852 .cmd = HWSIM_CMD_DEL_RADIO,
bc791098 2853 .policy = hwsim_genl_policy,
579a05f2 2854 .doit = hwsim_del_radio_nl,
bc791098
JB		 2855 .flags = GENL_ADMIN_PERM,
2856 },
7882513b
JL		 2857};
2858
e9ed49bf
JR		 2859static void destroy_radio(struct work_struct *work)
2860{
2861 struct mac80211_hwsim_data *data =
2862 container_of(work, struct mac80211_hwsim_data, destroy_work);
2863
b9995f83 2864 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy), NULL);
e9ed49bf
JR		 2865}
2866
2867static void remove_user_radios(u32 portid)
2868{
2869 struct mac80211_hwsim_data *entry, *tmp;
2870
2871 spin_lock_bh(&hwsim_radio_lock);
2872 list_for_each_entry_safe(entry, tmp, &hwsim_radios, list) {
2873 if (entry->destroy_on_close && entry->portid == portid) {
2874 list_del(&entry->list);
2875 INIT_WORK(&entry->destroy_work, destroy_radio);
2876 schedule_work(&entry->destroy_work);
2877 }
2878 }
2879 spin_unlock_bh(&hwsim_radio_lock);
2880}
2881
7882513b
JL		 2882static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
2883 unsigned long state,
2884 void *_notify)
2885{
2886 struct netlink_notify *notify = _notify;
2887
2888 if (state != NETLINK_URELEASE)
2889 return NOTIFY_DONE;
2890
e9ed49bf
JR		 2891 remove_user_radios(notify->portid);
2892
15e47304 2893 if (notify->portid == wmediumd_portid) {
7882513b
JL		 2894 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
2895 " socket, switching to perfect channel medium\n");
15e47304 2896 wmediumd_portid = 0;
7882513b
JL		 2897 }
2898 return NOTIFY_DONE;
2899
2900}
2901
2902static struct notifier_block hwsim_netlink_notifier = {
2903 .notifier_call = mac80211_hwsim_netlink_notify,
2904};
2905
2906static int hwsim_init_netlink(void)
2907{
2908 int rc;
e8261171 2909
7882513b
JL		 2910 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
2911
62759361
JR		 2912 rc = genl_register_family_with_ops_groups(&hwsim_genl_family,
2913 hwsim_ops,
2914 hwsim_mcgrps);
7882513b
JL		 2915 if (rc)
2916 goto failure;
2917
2918 rc = netlink_register_notifier(&hwsim_netlink_notifier);
2919 if (rc)
2920 goto failure;
2921
2922 return 0;
2923
2924failure:
c393862f 2925 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 2926 return -EINVAL;
2927}
2928
2929static void hwsim_exit_netlink(void)
2930{
7882513b
JL		 2931 /* unregister the notifier */
2932 netlink_unregister_notifier(&hwsim_netlink_notifier);
2933 /* unregister the family */
cf7a6b2d 2934 genl_unregister_family(&hwsim_genl_family);
7882513b
JL		 2935}
2936
acc1e7a3
JM		 2937static int __init init_mac80211_hwsim(void)
2938{
f39c2bfa 2939 int i, err;
acc1e7a3 2940
bc791098 2941 if (radios < 0 || radios > 100)
acc1e7a3
JM		 2942 return -EINVAL;
2943
e8261171
JB		 2944 if (channels < 1)
2945 return -EINVAL;
2946
38ed5048
JB		 2947 mac80211_hwsim_mchan_ops = mac80211_hwsim_ops;
2948 mac80211_hwsim_mchan_ops.hw_scan = mac80211_hwsim_hw_scan;
2949 mac80211_hwsim_mchan_ops.cancel_hw_scan = mac80211_hwsim_cancel_hw_scan;
2950 mac80211_hwsim_mchan_ops.sw_scan_start = NULL;
2951 mac80211_hwsim_mchan_ops.sw_scan_complete = NULL;
2952 mac80211_hwsim_mchan_ops.remain_on_channel = mac80211_hwsim_roc;
2953 mac80211_hwsim_mchan_ops.cancel_remain_on_channel = mac80211_hwsim_croc;
2954 mac80211_hwsim_mchan_ops.add_chanctx = mac80211_hwsim_add_chanctx;
2955 mac80211_hwsim_mchan_ops.remove_chanctx = mac80211_hwsim_remove_chanctx;
2956 mac80211_hwsim_mchan_ops.change_chanctx = mac80211_hwsim_change_chanctx;
2957 mac80211_hwsim_mchan_ops.assign_vif_chanctx =
2958 mac80211_hwsim_assign_vif_chanctx;
2959 mac80211_hwsim_mchan_ops.unassign_vif_chanctx =
2960 mac80211_hwsim_unassign_vif_chanctx;
69068036 2961
0e057d73
JB		 2962 spin_lock_init(&hwsim_radio_lock);
2963 INIT_LIST_HEAD(&hwsim_radios);
acc1e7a3 2964
c07fe5ae 2965 err = platform_driver_register(&mac80211_hwsim_driver);
9ea92774
MP		 2966 if (err)
2967 return err;
2968
acc1e7a3 2969 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
9ea92774
MP		 2970 if (IS_ERR(hwsim_class)) {
2971 err = PTR_ERR(hwsim_class);
f39c2bfa 2972 goto out_unregister_driver;
9ea92774 2973 }
acc1e7a3 2974
62759361
JR		 2975 err = hwsim_init_netlink();
2976 if (err < 0)
2977 goto out_unregister_driver;
2978
0e057d73 2979 for (i = 0; i < radios; i++) {
62759361
JR		 2980 struct hwsim_new_radio_params param = { 0 };
2981
2982 param.channels = channels;
acc1e7a3 2983
4a5af9c2 2984 switch (regtest) {
4a5af9c2 2985 case HWSIM_REGTEST_DIFF_COUNTRY:
26b0e411 2986 if (i < ARRAY_SIZE(hwsim_alpha2s))
62759361 2987 param.reg_alpha2 = hwsim_alpha2s[i];
4a5af9c2
LR		 2988 break;
2989 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
2990 if (!i)
62759361 2991 param.reg_alpha2 = hwsim_alpha2s[0];
4a5af9c2 2992 break;
4a5af9c2 2993 case HWSIM_REGTEST_STRICT_ALL:
62759361 2994 param.reg_strict = true;
26b0e411 2995 case HWSIM_REGTEST_DRIVER_REG_ALL:
62759361 2996 param.reg_alpha2 = hwsim_alpha2s[0];
4a5af9c2 2997 break;
26b0e411
JB		 2998 case HWSIM_REGTEST_WORLD_ROAM:
2999 if (i == 0)
62759361 3000 param.regd = &hwsim_world_regdom_custom_01;
4a5af9c2
LR		 3001 break;
3002 case HWSIM_REGTEST_CUSTOM_WORLD:
62759361 3003 param.regd = &hwsim_world_regdom_custom_01;
26b0e411 3004 break;
4a5af9c2 3005 case HWSIM_REGTEST_CUSTOM_WORLD_2:
26b0e411 3006 if (i == 0)
62759361 3007 param.regd = &hwsim_world_regdom_custom_01;
26b0e411 3008 else if (i == 1)
62759361 3009 param.regd = &hwsim_world_regdom_custom_02;
4a5af9c2
LR		 3010 break;
3011 case HWSIM_REGTEST_STRICT_FOLLOW:
26b0e411 3012 if (i == 0) {
62759361
JR		 3013 param.reg_strict = true;
3014 param.reg_alpha2 = hwsim_alpha2s[0];
26b0e411 3015 }
4a5af9c2
LR		 3016 break;
3017 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
26b0e411 3018 if (i == 0) {
62759361
JR		 3019 param.reg_strict = true;
3020 param.reg_alpha2 = hwsim_alpha2s[0];
26b0e411 3021 } else if (i == 1) {
62759361 3022 param.reg_alpha2 = hwsim_alpha2s[1];
26b0e411 3023 }
4a5af9c2
LR		 3024 break;
3025 case HWSIM_REGTEST_ALL:
26b0e411
JB		 3026 switch (i) {
3027 case 0:
62759361 3028 param.regd = &hwsim_world_regdom_custom_01;
26b0e411
JB		 3029 break;
3030 case 1:
62759361 3031 param.regd = &hwsim_world_regdom_custom_02;
26b0e411
JB		 3032 break;
3033 case 2:
62759361 3034 param.reg_alpha2 = hwsim_alpha2s[0];
26b0e411
JB		 3035 break;
3036 case 3:
62759361 3037 param.reg_alpha2 = hwsim_alpha2s[1];
26b0e411
JB		 3038 break;
3039 case 4:
62759361
JR		 3040 param.reg_strict = true;
3041 param.reg_alpha2 = hwsim_alpha2s[2];
26b0e411
JB		 3042 break;
3043 }
4a5af9c2
LR		 3044 break;
3045 default:
3046 break;
3047 }
3048
62759361
JR		 3049 param.p2p_device = support_p2p_device;
3050 param.use_chanctx = channels > 1;
3051
3052 err = mac80211_hwsim_new_radio(NULL, &param);
bc791098 3053 if (err < 0)
f39c2bfa 3054 goto out_free_radios;
acc1e7a3
JM		 3055 }
3056
c835a677
TG		 3057 hwsim_mon = alloc_netdev(0, "hwsim%d", NET_NAME_UNKNOWN,
3058 hwsim_mon_setup);
bcdd8220
WY		 3059 if (hwsim_mon == NULL) {
3060 err = -ENOMEM;
f39c2bfa 3061 goto out_free_radios;
bcdd8220 3062 }
acc1e7a3 3063
7882513b 3064 rtnl_lock();
7882513b 3065 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
f39c2bfa
JB		 3066 if (err < 0) {
3067 rtnl_unlock();
3068 goto out_free_radios;
3069 }
7882513b
JL		 3070
3071 err = register_netdevice(hwsim_mon);
f39c2bfa
JB		 3072 if (err < 0) {
3073 rtnl_unlock();
3074 goto out_free_mon;
3075 }
7882513b
JL		 3076 rtnl_unlock();
3077
acc1e7a3
JM		 3078 return 0;
3079
f39c2bfa 3080out_free_mon:
acc1e7a3 3081 free_netdev(hwsim_mon);
f39c2bfa 3082out_free_radios:
3a33cc10 3083 mac80211_hwsim_free();
f39c2bfa 3084out_unregister_driver:
c07fe5ae 3085 platform_driver_unregister(&mac80211_hwsim_driver);
acc1e7a3
JM		 3086 return err;
3087}
f8fffc7e 3088module_init(init_mac80211_hwsim);
acc1e7a3
JM		 3089
3090static void __exit exit_mac80211_hwsim(void)
3091{
0e057d73 3092 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
acc1e7a3 3093
7882513b
JL		 3094 hwsim_exit_netlink();
3095
acc1e7a3 3096 mac80211_hwsim_free();
5d416351 3097 unregister_netdev(hwsim_mon);
c07fe5ae 3098 platform_driver_unregister(&mac80211_hwsim_driver);
acc1e7a3 3099}
acc1e7a3 3100module_exit(exit_mac80211_hwsim);
Linux kernel - Deliverables
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