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nl80211: Add API to support VHT MU-MIMO air sniffer
[linux-2.6-block.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 32#include <net/genetlink.h>
100cb9ff
MW		 33#include <net/net_namespace.h>
34#include <net/netns/generic.h>
7882513b
JL		 35#include "mac80211_hwsim.h"
36
37#define WARN_QUEUE 100
38#define MAX_QUEUE 200
acc1e7a3
JM		 39
40MODULE_AUTHOR("Jouni Malinen");
41MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
42MODULE_LICENSE("GPL");
43
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
100cb9ff
MW		 253static unsigned int hwsim_net_id;
254
255static int hwsim_netgroup;
256
257struct hwsim_net {
258 int netgroup;
f21e4d8e 259 u32 wmediumd;
100cb9ff
MW		 260};
261
262static inline int hwsim_net_get_netgroup(struct net *net)
263{
264 struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
265
266 return hwsim_net->netgroup;
267}
268
269static inline void hwsim_net_set_netgroup(struct net *net)
270{
271 struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
272
273 hwsim_net->netgroup = hwsim_netgroup++;
274}
275
f21e4d8e
MW		 276static inline u32 hwsim_net_get_wmediumd(struct net *net)
277{
278 struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
279
280 return hwsim_net->wmediumd;
281}
282
283static inline void hwsim_net_set_wmediumd(struct net *net, u32 portid)
284{
285 struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
286
287 hwsim_net->wmediumd = portid;
288}
289
acc1e7a3
JM		 290static struct class *hwsim_class;
291
acc1e7a3
JM		 292static struct net_device *hwsim_mon; /* global monitor netdev */
293
22cad735 294#define CHAN2G(_freq) { \
57fbcce3 295 .band = NL80211_BAND_2GHZ, \
22cad735
LR		 296 .center_freq = (_freq), \
297 .hw_value = (_freq), \
298 .max_power = 20, \
299}
300
301#define CHAN5G(_freq) { \
57fbcce3 302 .band = NL80211_BAND_5GHZ, \
22cad735
LR		 303 .center_freq = (_freq), \
304 .hw_value = (_freq), \
305 .max_power = 20, \
306}
307
308static const struct ieee80211_channel hwsim_channels_2ghz[] = {
309 CHAN2G(2412), /* Channel 1 */
310 CHAN2G(2417), /* Channel 2 */
311 CHAN2G(2422), /* Channel 3 */
312 CHAN2G(2427), /* Channel 4 */
313 CHAN2G(2432), /* Channel 5 */
314 CHAN2G(2437), /* Channel 6 */
315 CHAN2G(2442), /* Channel 7 */
316 CHAN2G(2447), /* Channel 8 */
317 CHAN2G(2452), /* Channel 9 */
318 CHAN2G(2457), /* Channel 10 */
319 CHAN2G(2462), /* Channel 11 */
320 CHAN2G(2467), /* Channel 12 */
321 CHAN2G(2472), /* Channel 13 */
322 CHAN2G(2484), /* Channel 14 */
323};
acc1e7a3 324
22cad735
LR		 325static const struct ieee80211_channel hwsim_channels_5ghz[] = {
326 CHAN5G(5180), /* Channel 36 */
327 CHAN5G(5200), /* Channel 40 */
328 CHAN5G(5220), /* Channel 44 */
329 CHAN5G(5240), /* Channel 48 */
330
331 CHAN5G(5260), /* Channel 52 */
332 CHAN5G(5280), /* Channel 56 */
333 CHAN5G(5300), /* Channel 60 */
334 CHAN5G(5320), /* Channel 64 */
335
336 CHAN5G(5500), /* Channel 100 */
337 CHAN5G(5520), /* Channel 104 */
338 CHAN5G(5540), /* Channel 108 */
339 CHAN5G(5560), /* Channel 112 */
340 CHAN5G(5580), /* Channel 116 */
341 CHAN5G(5600), /* Channel 120 */
342 CHAN5G(5620), /* Channel 124 */
343 CHAN5G(5640), /* Channel 128 */
344 CHAN5G(5660), /* Channel 132 */
345 CHAN5G(5680), /* Channel 136 */
346 CHAN5G(5700), /* Channel 140 */
347
348 CHAN5G(5745), /* Channel 149 */
349 CHAN5G(5765), /* Channel 153 */
350 CHAN5G(5785), /* Channel 157 */
351 CHAN5G(5805), /* Channel 161 */
352 CHAN5G(5825), /* Channel 165 */
acc1e7a3
JM		 353};
354
355static const struct ieee80211_rate hwsim_rates[] = {
356 { .bitrate = 10 },
357 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
358 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
359 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
360 { .bitrate = 60 },
361 { .bitrate = 90 },
362 { .bitrate = 120 },
363 { .bitrate = 180 },
364 { .bitrate = 240 },
365 { .bitrate = 360 },
366 { .bitrate = 480 },
367 { .bitrate = 540 }
368};
369
d5d011b4
JM		 370#define OUI_QCA 0x001374
371#define QCA_NL80211_SUBCMD_TEST 1
372enum qca_nl80211_vendor_subcmds {
373 QCA_WLAN_VENDOR_ATTR_TEST = 8,
374 QCA_WLAN_VENDOR_ATTR_MAX = QCA_WLAN_VENDOR_ATTR_TEST
375};
376
377static const struct nla_policy
378hwsim_vendor_test_policy[QCA_WLAN_VENDOR_ATTR_MAX + 1] = {
379 [QCA_WLAN_VENDOR_ATTR_MAX] = { .type = NLA_U32 },
380};
381
382static int mac80211_hwsim_vendor_cmd_test(struct wiphy *wiphy,
383 struct wireless_dev *wdev,
384 const void *data, int data_len)
385{
386 struct sk_buff *skb;
387 struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_MAX + 1];
388 int err;
389 u32 val;
390
391 err = nla_parse(tb, QCA_WLAN_VENDOR_ATTR_MAX, data, data_len,
392 hwsim_vendor_test_policy);
393 if (err)
394 return err;
395 if (!tb[QCA_WLAN_VENDOR_ATTR_TEST])
396 return -EINVAL;
397 val = nla_get_u32(tb[QCA_WLAN_VENDOR_ATTR_TEST]);
398 wiphy_debug(wiphy, "%s: test=%u\n", __func__, val);
399
400 /* Send a vendor event as a test. Note that this would not normally be
401 * done within a command handler, but rather, based on some other
402 * trigger. For simplicity, this command is used to trigger the event
403 * here.
404 *
405 * event_idx = 0 (index in mac80211_hwsim_vendor_commands)
406 */
407 skb = cfg80211_vendor_event_alloc(wiphy, wdev, 100, 0, GFP_KERNEL);
408 if (skb) {
409 /* skb_put() or nla_put() will fill up data within
410 * NL80211_ATTR_VENDOR_DATA.
411 */
412
413 /* Add vendor data */
414 nla_put_u32(skb, QCA_WLAN_VENDOR_ATTR_TEST, val + 1);
415
416 /* Send the event - this will call nla_nest_end() */
417 cfg80211_vendor_event(skb, GFP_KERNEL);
418 }
419
420 /* Send a response to the command */
421 skb = cfg80211_vendor_cmd_alloc_reply_skb(wiphy, 10);
422 if (!skb)
423 return -ENOMEM;
424
425 /* skb_put() or nla_put() will fill up data within
426 * NL80211_ATTR_VENDOR_DATA
427 */
428 nla_put_u32(skb, QCA_WLAN_VENDOR_ATTR_TEST, val + 2);
429
430 return cfg80211_vendor_cmd_reply(skb);
431}
432
433static struct wiphy_vendor_command mac80211_hwsim_vendor_commands[] = {
434 {
435 .info = { .vendor_id = OUI_QCA,
436 .subcmd = QCA_NL80211_SUBCMD_TEST },
437 .flags = WIPHY_VENDOR_CMD_NEED_NETDEV,
438 .doit = mac80211_hwsim_vendor_cmd_test,
439 }
440};
441
442/* Advertise support vendor specific events */
443static const struct nl80211_vendor_cmd_info mac80211_hwsim_vendor_events[] = {
444 { .vendor_id = OUI_QCA, .subcmd = 1 },
445};
446
de0421d5
JB		 447static const struct ieee80211_iface_limit hwsim_if_limits[] = {
448 { .max = 1, .types = BIT(NL80211_IFTYPE_ADHOC) },
449 { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) |
450 BIT(NL80211_IFTYPE_P2P_CLIENT) |
451#ifdef CONFIG_MAC80211_MESH
452 BIT(NL80211_IFTYPE_MESH_POINT) |
453#endif
454 BIT(NL80211_IFTYPE_AP) |
455 BIT(NL80211_IFTYPE_P2P_GO) },
8c66a3d9
JB		 456 /* must be last, see hwsim_if_comb */
457 { .max = 1, .types = BIT(NL80211_IFTYPE_P2P_DEVICE) }
de0421d5
JB		 458};
459
460static const struct ieee80211_iface_limit hwsim_if_dfs_limits[] = {
461 { .max = 8, .types = BIT(NL80211_IFTYPE_AP) },
462};
463
464static const struct ieee80211_iface_combination hwsim_if_comb[] = {
8c66a3d9
JB		 465 {
466 .limits = hwsim_if_limits,
467 /* remove the last entry which is P2P_DEVICE */
468 .n_limits = ARRAY_SIZE(hwsim_if_limits) - 1,
469 .max_interfaces = 2048,
470 .num_different_channels = 1,
471 },
472 {
473 .limits = hwsim_if_dfs_limits,
474 .n_limits = ARRAY_SIZE(hwsim_if_dfs_limits),
475 .max_interfaces = 8,
476 .num_different_channels = 1,
477 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
478 BIT(NL80211_CHAN_WIDTH_20) |
479 BIT(NL80211_CHAN_WIDTH_40) |
480 BIT(NL80211_CHAN_WIDTH_80) |
481 BIT(NL80211_CHAN_WIDTH_160),
482 }
483};
484
485static const struct ieee80211_iface_combination hwsim_if_comb_p2p_dev[] = {
de0421d5
JB		 486 {
487 .limits = hwsim_if_limits,
488 .n_limits = ARRAY_SIZE(hwsim_if_limits),
489 .max_interfaces = 2048,
490 .num_different_channels = 1,
491 },
492 {
493 .limits = hwsim_if_dfs_limits,
494 .n_limits = ARRAY_SIZE(hwsim_if_dfs_limits),
495 .max_interfaces = 8,
496 .num_different_channels = 1,
497 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
498 BIT(NL80211_CHAN_WIDTH_20) |
499 BIT(NL80211_CHAN_WIDTH_40) |
500 BIT(NL80211_CHAN_WIDTH_80) |
501 BIT(NL80211_CHAN_WIDTH_160),
502 }
503};
504
0e057d73
JB		 505static spinlock_t hwsim_radio_lock;
506static struct list_head hwsim_radios;
2d68992b 507static int hwsim_radio_idx;
0e057d73 508
de0421d5
JB		 509static struct platform_driver mac80211_hwsim_driver = {
510 .driver = {
511 .name = "mac80211_hwsim",
de0421d5
JB		 512 },
513};
0e057d73 514
acc1e7a3 515struct mac80211_hwsim_data {
0e057d73
JB		 516 struct list_head list;
517 struct ieee80211_hw *hw;
acc1e7a3 518 struct device *dev;
57fbcce3 519 struct ieee80211_supported_band bands[NUM_NL80211_BANDS];
22cad735
LR		 520 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
521 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
acc1e7a3 522 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
38ed5048 523 struct ieee80211_iface_combination if_combination;
acc1e7a3 524
ef15aac6 525 struct mac_address addresses[2];
bc791098 526 int channels, idx;
361c3e04 527 bool use_chanctx;
e9ed49bf
JR		 528 bool destroy_on_close;
529 struct work_struct destroy_work;
530 u32 portid;
93d638d4
PF		 531 char alpha2[2];
532 const struct ieee80211_regdomain *regd;
ef15aac6 533
e8261171 534 struct ieee80211_channel *tmp_chan;
661ef475
JB		 535 struct ieee80211_channel *roc_chan;
536 u32 roc_duration;
537 struct delayed_work roc_start;
e8261171
JB		 538 struct delayed_work roc_done;
539 struct delayed_work hw_scan;
540 struct cfg80211_scan_request *hw_scan_request;
541 struct ieee80211_vif *hw_scan_vif;
542 int scan_chan_idx;
339467b9 543 u8 scan_addr[ETH_ALEN];
e8261171 544
acc1e7a3 545 struct ieee80211_channel *channel;
01e59e46 546 u64 beacon_int /* beacon interval in us */;
acc1e7a3 547 unsigned int rx_filter;
f74cb0f7
LR		 548 bool started, idle, scanning;
549 struct mutex mutex;
01e59e46 550 struct tasklet_hrtimer beacon_timer;
fc6971d4
JM		 551 enum ps_mode {
552 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
553 } ps;
554 bool ps_poll_pending;
555 struct dentry *debugfs;
73606d00 556
959eb2fd 557 uintptr_t pending_cookie;
7882513b 558 struct sk_buff_head pending; /* packets pending */
73606d00
DW		 559 /*
560 * Only radios in the same group can communicate together (the
561 * channel has to match too). Each bit represents a group. A
9ebac15f 562 * radio can be in more than one group.
73606d00
DW		 563 */
564 u64 group;
bdd7bd16 565
100cb9ff
MW		 566 /* group shared by radios created in the same netns */
567 int netgroup;
f21e4d8e
MW		 568 /* wmediumd portid responsible for netgroup of this radio */
569 u32 wmediumd;
100cb9ff 570
bdd7bd16 571 int power_level;
2f40b940
JC		 572
573 /* difference between this hw's clock and the real clock, in usecs */
45034bfb 574 s64 tsf_offset;
c51f8783 575 s64 bcn_delta;
b66851c3
TP		 576 /* absolute beacon transmission time. Used to cover up "tx" delay. */
577 u64 abs_bcn_ts;
2155c3f8
BG		 578
579 /* Stats */
580 u64 tx_pkts;
581 u64 rx_pkts;
582 u64 tx_bytes;
583 u64 rx_bytes;
584 u64 tx_dropped;
585 u64 tx_failed;
acc1e7a3
JM		 586};
587
588
589struct hwsim_radiotap_hdr {
590 struct ieee80211_radiotap_header hdr;
2f40b940 591 __le64 rt_tsft;
acc1e7a3
JM		 592 u8 rt_flags;
593 u8 rt_rate;
594 __le16 rt_channel;
595 __le16 rt_chbitmask;
ba2d3587 596} __packed;
acc1e7a3 597
76a56eb3
JM		 598struct hwsim_radiotap_ack_hdr {
599 struct ieee80211_radiotap_header hdr;
600 u8 rt_flags;
601 u8 pad;
602 __le16 rt_channel;
603 __le16 rt_chbitmask;
604} __packed;
605
7882513b
JL		 606/* MAC80211_HWSIM netlinf family */
607static struct genl_family hwsim_genl_family = {
608 .id = GENL_ID_GENERATE,
609 .hdrsize = 0,
610 .name = "MAC80211_HWSIM",
611 .version = 1,
612 .maxattr = HWSIM_ATTR_MAX,
100cb9ff 613 .netnsok = true,
7882513b
JL		 614};
615
62759361
JR		 616enum hwsim_multicast_groups {
617 HWSIM_MCGRP_CONFIG,
618};
619
620static const struct genl_multicast_group hwsim_mcgrps[] = {
621 [HWSIM_MCGRP_CONFIG] = { .name = "config", },
622};
623
7882513b
JL		 624/* MAC80211_HWSIM netlink policy */
625
205d2429 626static const struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
9ddd12af
JB		 627 [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
628 [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
7882513b
JL		 629 [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
630 .len = IEEE80211_MAX_DATA_LEN },
631 [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
632 [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
633 [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
634 [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC,
9ddd12af
JB		 635 .len = IEEE80211_TX_MAX_RATES *
636 sizeof(struct hwsim_tx_rate)},
7882513b 637 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
bc791098
JB		 638 [HWSIM_ATTR_CHANNELS] = { .type = NLA_U32 },
639 [HWSIM_ATTR_RADIO_ID] = { .type = NLA_U32 },
26b0e411
JB		 640 [HWSIM_ATTR_REG_HINT_ALPHA2] = { .type = NLA_STRING, .len = 2 },
641 [HWSIM_ATTR_REG_CUSTOM_REG] = { .type = NLA_U32 },
642 [HWSIM_ATTR_REG_STRICT_REG] = { .type = NLA_FLAG },
8c66a3d9 643 [HWSIM_ATTR_SUPPORT_P2P_DEVICE] = { .type = NLA_FLAG },
e9ed49bf 644 [HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE] = { .type = NLA_FLAG },
de29eda8
JB		 645 [HWSIM_ATTR_RADIO_NAME] = { .type = NLA_STRING },
646 [HWSIM_ATTR_NO_VIF] = { .type = NLA_FLAG },
647 [HWSIM_ATTR_FREQ] = { .type = NLA_U32 },
7882513b 648};
acc1e7a3 649
de0421d5
JB		 650static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
651 struct sk_buff *skb,
652 struct ieee80211_channel *chan);
653
654/* sysfs attributes */
655static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
656{
657 struct mac80211_hwsim_data *data = dat;
658 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
659 struct sk_buff *skb;
660 struct ieee80211_pspoll *pspoll;
661
662 if (!vp->assoc)
663 return;
664
665 wiphy_debug(data->hw->wiphy,
666 "%s: send PS-Poll to %pM for aid %d\n",
667 __func__, vp->bssid, vp->aid);
668
669 skb = dev_alloc_skb(sizeof(*pspoll));
670 if (!skb)
671 return;
672 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
673 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
674 IEEE80211_STYPE_PSPOLL |
675 IEEE80211_FCTL_PM);
676 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
677 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
678 memcpy(pspoll->ta, mac, ETH_ALEN);
679
680 rcu_read_lock();
681 mac80211_hwsim_tx_frame(data->hw, skb,
682 rcu_dereference(vif->chanctx_conf)->def.chan);
683 rcu_read_unlock();
684}
685
686static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
687 struct ieee80211_vif *vif, int ps)
688{
689 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
690 struct sk_buff *skb;
691 struct ieee80211_hdr *hdr;
692
693 if (!vp->assoc)
694 return;
695
696 wiphy_debug(data->hw->wiphy,
697 "%s: send data::nullfunc to %pM ps=%d\n",
698 __func__, vp->bssid, ps);
699
700 skb = dev_alloc_skb(sizeof(*hdr));
701 if (!skb)
702 return;
703 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
704 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
705 IEEE80211_STYPE_NULLFUNC |
706 (ps ? IEEE80211_FCTL_PM : 0));
707 hdr->duration_id = cpu_to_le16(0);
708 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
709 memcpy(hdr->addr2, mac, ETH_ALEN);
710 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
711
712 rcu_read_lock();
713 mac80211_hwsim_tx_frame(data->hw, skb,
714 rcu_dereference(vif->chanctx_conf)->def.chan);
715 rcu_read_unlock();
716}
717
718
719static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
720 struct ieee80211_vif *vif)
721{
722 struct mac80211_hwsim_data *data = dat;
723 hwsim_send_nullfunc(data, mac, vif, 1);
724}
725
726static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
727 struct ieee80211_vif *vif)
728{
729 struct mac80211_hwsim_data *data = dat;
730 hwsim_send_nullfunc(data, mac, vif, 0);
731}
732
733static int hwsim_fops_ps_read(void *dat, u64 *val)
734{
735 struct mac80211_hwsim_data *data = dat;
736 *val = data->ps;
737 return 0;
738}
739
740static int hwsim_fops_ps_write(void *dat, u64 val)
741{
742 struct mac80211_hwsim_data *data = dat;
743 enum ps_mode old_ps;
744
745 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
746 val != PS_MANUAL_POLL)
747 return -EINVAL;
748
749 old_ps = data->ps;
750 data->ps = val;
751
a809ca5e 752 local_bh_disable();
de0421d5 753 if (val == PS_MANUAL_POLL) {
a809ca5e
JB		 754 ieee80211_iterate_active_interfaces_atomic(
755 data->hw, IEEE80211_IFACE_ITER_NORMAL,
756 hwsim_send_ps_poll, data);
de0421d5
JB		 757 data->ps_poll_pending = true;
758 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
a809ca5e
JB		 759 ieee80211_iterate_active_interfaces_atomic(
760 data->hw, IEEE80211_IFACE_ITER_NORMAL,
761 hwsim_send_nullfunc_ps, data);
de0421d5 762 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
a809ca5e
JB		 763 ieee80211_iterate_active_interfaces_atomic(
764 data->hw, IEEE80211_IFACE_ITER_NORMAL,
765 hwsim_send_nullfunc_no_ps, data);
de0421d5 766 }
a809ca5e 767 local_bh_enable();
de0421d5
JB		 768
769 return 0;
770}
771
772DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
773 "%llu\n");
774
775static int hwsim_write_simulate_radar(void *dat, u64 val)
776{
777 struct mac80211_hwsim_data *data = dat;
778
779 ieee80211_radar_detected(data->hw);
780
781 return 0;
782}
783
784DEFINE_SIMPLE_ATTRIBUTE(hwsim_simulate_radar, NULL,
785 hwsim_write_simulate_radar, "%llu\n");
786
787static int hwsim_fops_group_read(void *dat, u64 *val)
788{
789 struct mac80211_hwsim_data *data = dat;
790 *val = data->group;
791 return 0;
792}
793
794static int hwsim_fops_group_write(void *dat, u64 val)
795{
796 struct mac80211_hwsim_data *data = dat;
797 data->group = val;
798 return 0;
799}
800
801DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
802 hwsim_fops_group_read, hwsim_fops_group_write,
803 "%llx\n");
804
d0cf9c0d
SH		 805static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
806 struct net_device *dev)
acc1e7a3
JM		 807{
808 /* TODO: allow packet injection */
809 dev_kfree_skb(skb);
6ed10654 810 return NETDEV_TX_OK;
acc1e7a3
JM		 811}
812
b66851c3
TP		 813static inline u64 mac80211_hwsim_get_tsf_raw(void)
814{
815 return ktime_to_us(ktime_get_real());
816}
817
2f40b940
JC		 818static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
819{
b66851c3 820 u64 now = mac80211_hwsim_get_tsf_raw();
2f40b940
JC		 821 return cpu_to_le64(now + data->tsf_offset);
822}
acc1e7a3 823
12ce8ba3 824static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
b66851c3 825 struct ieee80211_vif *vif)
12ce8ba3
JC		 826{
827 struct mac80211_hwsim_data *data = hw->priv;
828 return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
829}
830
831static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
832 struct ieee80211_vif *vif, u64 tsf)
833{
834 struct mac80211_hwsim_data *data = hw->priv;
45034bfb 835 u64 now = mac80211_hwsim_get_tsf(hw, vif);
c51f8783 836 u32 bcn_int = data->beacon_int;
79211c8e 837 u64 delta = abs(tsf - now);
45034bfb 838
c51f8783 839 /* adjust after beaconing with new timestamp at old TBTT */
5d26b508
AB		 840 if (tsf > now) {
841 data->tsf_offset += delta;
842 data->bcn_delta = do_div(delta, bcn_int);
843 } else {
844 data->tsf_offset -= delta;
845 data->bcn_delta = -do_div(delta, bcn_int);
846 }
12ce8ba3
JC		 847}
848
acc1e7a3 849static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
e8261171
JB		 850 struct sk_buff *tx_skb,
851 struct ieee80211_channel *chan)
acc1e7a3
JM		 852{
853 struct mac80211_hwsim_data *data = hw->priv;
854 struct sk_buff *skb;
855 struct hwsim_radiotap_hdr *hdr;
856 u16 flags;
857 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
858 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
859
89f44d8c
AK		 860 if (WARN_ON(!txrate))
861 return;
862
acc1e7a3
JM		 863 if (!netif_running(hwsim_mon))
864 return;
865
866 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
867 if (skb == NULL)
868 return;
869
870 hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
871 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
872 hdr->hdr.it_pad = 0;
873 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
f248f105
JM		 874 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
875 (1 << IEEE80211_RADIOTAP_RATE) |
2f40b940 876 (1 << IEEE80211_RADIOTAP_TSFT) |
f248f105 877 (1 << IEEE80211_RADIOTAP_CHANNEL));
2f40b940 878 hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
acc1e7a3
JM		 879 hdr->rt_flags = 0;
880 hdr->rt_rate = txrate->bitrate / 5;
e8261171 881 hdr->rt_channel = cpu_to_le16(chan->center_freq);
acc1e7a3
JM		 882 flags = IEEE80211_CHAN_2GHZ;
883 if (txrate->flags & IEEE80211_RATE_ERP_G)
884 flags |= IEEE80211_CHAN_OFDM;
885 else
886 flags |= IEEE80211_CHAN_CCK;
887 hdr->rt_chbitmask = cpu_to_le16(flags);
888
889 skb->dev = hwsim_mon;
6b163a85 890 skb_reset_mac_header(skb);
acc1e7a3
JM		 891 skb->ip_summed = CHECKSUM_UNNECESSARY;
892 skb->pkt_type = PACKET_OTHERHOST;
f248f105 893 skb->protocol = htons(ETH_P_802_2);
acc1e7a3
JM		 894 memset(skb->cb, 0, sizeof(skb->cb));
895 netif_rx(skb);
896}
897
898
e8261171
JB		 899static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
900 const u8 *addr)
6c085227 901{
6c085227 902 struct sk_buff *skb;
76a56eb3 903 struct hwsim_radiotap_ack_hdr *hdr;
6c085227
JM		 904 u16 flags;
905 struct ieee80211_hdr *hdr11;
906
907 if (!netif_running(hwsim_mon))
908 return;
909
910 skb = dev_alloc_skb(100);
911 if (skb == NULL)
912 return;
913
76a56eb3 914 hdr = (struct hwsim_radiotap_ack_hdr *) skb_put(skb, sizeof(*hdr));
6c085227
JM		 915 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
916 hdr->hdr.it_pad = 0;
917 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
918 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
919 (1 << IEEE80211_RADIOTAP_CHANNEL));
920 hdr->rt_flags = 0;
76a56eb3 921 hdr->pad = 0;
e8261171 922 hdr->rt_channel = cpu_to_le16(chan->center_freq);
6c085227
JM		 923 flags = IEEE80211_CHAN_2GHZ;
924 hdr->rt_chbitmask = cpu_to_le16(flags);
925
926 hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
927 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
928 IEEE80211_STYPE_ACK);
929 hdr11->duration_id = cpu_to_le16(0);
930 memcpy(hdr11->addr1, addr, ETH_ALEN);
931
932 skb->dev = hwsim_mon;
6b163a85 933 skb_reset_mac_header(skb);
6c085227
JM		 934 skb->ip_summed = CHECKSUM_UNNECESSARY;
935 skb->pkt_type = PACKET_OTHERHOST;
936 skb->protocol = htons(ETH_P_802_2);
937 memset(skb->cb, 0, sizeof(skb->cb));
938 netif_rx(skb);
939}
940
3283e286
JB		 941struct mac80211_hwsim_addr_match_data {
942 u8 addr[ETH_ALEN];
943 bool ret;
944};
945
946static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
947 struct ieee80211_vif *vif)
948{
949 struct mac80211_hwsim_addr_match_data *md = data;
950
951 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
952 md->ret = true;
953}
954
955static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
956 const u8 *addr)
957{
958 struct mac80211_hwsim_addr_match_data md = {
959 .ret = false,
960 };
961
339467b9
JB		 962 if (data->scanning && memcmp(addr, data->scan_addr, ETH_ALEN) == 0)
963 return true;
964
3283e286
JB		 965 memcpy(md.addr, addr, ETH_ALEN);
966
967 ieee80211_iterate_active_interfaces_atomic(data->hw,
968 IEEE80211_IFACE_ITER_NORMAL,
969 mac80211_hwsim_addr_iter,
970 &md);
971
972 return md.ret;
973}
6c085227 974
fc6971d4
JM		 975static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
976 struct sk_buff *skb)
977{
978 switch (data->ps) {
979 case PS_DISABLED:
980 return true;
981 case PS_ENABLED:
982 return false;
983 case PS_AUTO_POLL:
984 /* TODO: accept (some) Beacons by default and other frames only
985 * if pending PS-Poll has been sent */
986 return true;
987 case PS_MANUAL_POLL:
988 /* Allow unicast frames to own address if there is a pending
989 * PS-Poll */
990 if (data->ps_poll_pending &&
3283e286 991 mac80211_hwsim_addr_match(data, skb->data + 4)) {
fc6971d4
JM		 992 data->ps_poll_pending = false;
993 return true;
994 }
995 return false;
996 }
997
998 return true;
999}
1000
f21e4d8e
MW		 1001static int hwsim_unicast_netgroup(struct mac80211_hwsim_data *data,
1002 struct sk_buff *skb, int portid)
1003{
1004 struct net *net;
1005 bool found = false;
1006 int res = -ENOENT;
1007
1008 rcu_read_lock();
1009 for_each_net_rcu(net) {
1010 if (data->netgroup == hwsim_net_get_netgroup(net)) {
1011 res = genlmsg_unicast(net, skb, portid);
1012 found = true;
1013 break;
1014 }
1015 }
1016 rcu_read_unlock();
1017
1018 if (!found)
1019 nlmsg_free(skb);
1020
1021 return res;
1022}
1023
7882513b
JL		 1024static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
1025 struct sk_buff *my_skb,
15e47304 1026 int dst_portid)
7882513b
JL		 1027{
1028 struct sk_buff *skb;
1029 struct mac80211_hwsim_data *data = hw->priv;
1030 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
1031 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
1032 void *msg_head;
1033 unsigned int hwsim_flags = 0;
1034 int i;
1035 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
959eb2fd 1036 uintptr_t cookie;
7882513b 1037
7882513b
JL		 1038 if (data->ps != PS_DISABLED)
1039 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1040 /* If the queue contains MAX_QUEUE skb's drop some */
1041 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
1042 /* Droping until WARN_QUEUE level */
2155c3f8 1043 while (skb_queue_len(&data->pending) >= WARN_QUEUE) {
b7bc9679 1044 ieee80211_free_txskb(hw, skb_dequeue(&data->pending));
2155c3f8
BG		 1045 data->tx_dropped++;
1046 }
7882513b
JL		 1047 }
1048
58050fce 1049 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
7882513b
JL		 1050 if (skb == NULL)
1051 goto nla_put_failure;
1052
1053 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
1054 HWSIM_CMD_FRAME);
1055 if (msg_head == NULL) {
1056 printk(KERN_DEBUG "mac80211_hwsim: problem with msg_head\n");
1057 goto nla_put_failure;
1058 }
1059
354210f8
BC		 1060 if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
1061 ETH_ALEN, data->addresses[1].addr))
633c9389 1062 goto nla_put_failure;
265dc7f0 1063
7882513b 1064 /* We get the skb->data */
633c9389
DM		 1065 if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
1066 goto nla_put_failure;
7882513b
JL		 1067
1068 /* We get the flags for this transmission, and we translate them to
1069 wmediumd flags */
1070
1071 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
1072 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
1073
1074 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
1075 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
1076
633c9389
DM		 1077 if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
1078 goto nla_put_failure;
7882513b 1079
4f86ed8f
BG		 1080 if (nla_put_u32(skb, HWSIM_ATTR_FREQ, data->channel->center_freq))
1081 goto nla_put_failure;
1082
7882513b
JL		 1083 /* We get the tx control (rate and retries) info*/
1084
1085 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
1086 tx_attempts[i].idx = info->status.rates[i].idx;
1087 tx_attempts[i].count = info->status.rates[i].count;
1088 }
1089
633c9389
DM		 1090 if (nla_put(skb, HWSIM_ATTR_TX_INFO,
1091 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
1092 tx_attempts))
1093 goto nla_put_failure;
7882513b
JL		 1094
1095 /* We create a cookie to identify this skb */
959eb2fd
JB		 1096 data->pending_cookie++;
1097 cookie = data->pending_cookie;
1098 info->rate_driver_data[0] = (void *)cookie;
08f4cbb8 1099 if (nla_put_u64_64bit(skb, HWSIM_ATTR_COOKIE, cookie, HWSIM_ATTR_PAD))
633c9389 1100 goto nla_put_failure;
7882513b
JL		 1101
1102 genlmsg_end(skb, msg_head);
f21e4d8e 1103 if (hwsim_unicast_netgroup(data, skb, dst_portid))
f2831e20 1104 goto err_free_txskb;
7882513b
JL		 1105
1106 /* Enqueue the packet */
1107 skb_queue_tail(&data->pending, my_skb);
2155c3f8
BG		 1108 data->tx_pkts++;
1109 data->tx_bytes += my_skb->len;
7882513b
JL		 1110 return;
1111
1112nla_put_failure:
f2831e20
BC		 1113 nlmsg_free(skb);
1114err_free_txskb:
c393862f 1115 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
b7bc9679 1116 ieee80211_free_txskb(hw, my_skb);
2155c3f8 1117 data->tx_failed++;
7882513b
JL		 1118}
1119
e8261171
JB		 1120static bool hwsim_chans_compat(struct ieee80211_channel *c1,
1121 struct ieee80211_channel *c2)
1122{
1123 if (!c1 || !c2)
1124 return false;
1125
1126 return c1->center_freq == c2->center_freq;
1127}
1128
1129struct tx_iter_data {
1130 struct ieee80211_channel *channel;
1131 bool receive;
1132};
1133
1134static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
1135 struct ieee80211_vif *vif)
1136{
1137 struct tx_iter_data *data = _data;
1138
1139 if (!vif->chanctx_conf)
1140 return;
1141
1142 if (!hwsim_chans_compat(data->channel,
4bf88530 1143 rcu_dereference(vif->chanctx_conf)->def.chan))
e8261171
JB		 1144 return;
1145
1146 data->receive = true;
1147}
1148
1f7bba79
JB		 1149static void mac80211_hwsim_add_vendor_rtap(struct sk_buff *skb)
1150{
1151 /*
1152 * To enable this code, #define the HWSIM_RADIOTAP_OUI,
1153 * e.g. like this:
1154 * #define HWSIM_RADIOTAP_OUI "\x02\x00\x00"
1155 * (but you should use a valid OUI, not that)
1156 *
1157 * If anyone wants to 'donate' a radiotap OUI/subns code
1158 * please send a patch removing this #ifdef and changing
1159 * the values accordingly.
1160 */
1161#ifdef HWSIM_RADIOTAP_OUI
1162 struct ieee80211_vendor_radiotap *rtap;
1163
1164 /*
1165 * Note that this code requires the headroom in the SKB
1166 * that was allocated earlier.
1167 */
1168 rtap = (void *)skb_push(skb, sizeof(*rtap) + 8 + 4);
1169 rtap->oui[0] = HWSIM_RADIOTAP_OUI[0];
1170 rtap->oui[1] = HWSIM_RADIOTAP_OUI[1];
1171 rtap->oui[2] = HWSIM_RADIOTAP_OUI[2];
1172 rtap->subns = 127;
1173
1174 /*
1175 * Radiotap vendor namespaces can (and should) also be
1176 * split into fields by using the standard radiotap
1177 * presence bitmap mechanism. Use just BIT(0) here for
1178 * the presence bitmap.
1179 */
1180 rtap->present = BIT(0);
1181 /* We have 8 bytes of (dummy) data */
1182 rtap->len = 8;
1183 /* For testing, also require it to be aligned */
1184 rtap->align = 8;
1185 /* And also test that padding works, 4 bytes */
1186 rtap->pad = 4;
1187 /* push the data */
1188 memcpy(rtap->data, "ABCDEFGH", 8);
1189 /* make sure to clear padding, mac80211 doesn't */
1190 memset(rtap->data + 8, 0, 4);
1191
1192 IEEE80211_SKB_RXCB(skb)->flag |= RX_FLAG_RADIOTAP_VENDOR_DATA;
1193#endif
1194}
1195
7882513b 1196static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
e8261171
JB		 1197 struct sk_buff *skb,
1198 struct ieee80211_channel *chan)
acc1e7a3 1199{
0e057d73
JB		 1200 struct mac80211_hwsim_data *data = hw->priv, *data2;
1201 bool ack = false;
e36cfdc9 1202 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
acc1e7a3 1203 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
e36cfdc9 1204 struct ieee80211_rx_status rx_status;
b66851c3 1205 u64 now;
acc1e7a3
JM		 1206
1207 memset(&rx_status, 0, sizeof(rx_status));
f4bda337 1208 rx_status.flag |= RX_FLAG_MACTIME_START;
e8261171
JB		 1209 rx_status.freq = chan->center_freq;
1210 rx_status.band = chan->band;
dad6330d
KB		 1211 if (info->control.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) {
1212 rx_status.rate_idx =
1213 ieee80211_rate_get_vht_mcs(&info->control.rates[0]);
1214 rx_status.vht_nss =
1215 ieee80211_rate_get_vht_nss(&info->control.rates[0]);
1216 rx_status.flag |= RX_FLAG_VHT;
1217 } else {
1218 rx_status.rate_idx = info->control.rates[0].idx;
1219 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
1220 rx_status.flag |= RX_FLAG_HT;
1221 }
281ed297
JM		 1222 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
1223 rx_status.flag |= RX_FLAG_40MHZ;
1224 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
1225 rx_status.flag |= RX_FLAG_SHORT_GI;
4b14c96d 1226 /* TODO: simulate real signal strength (and optional packet loss) */
bdd7bd16 1227 rx_status.signal = data->power_level - 50;
acc1e7a3 1228
fc6971d4
JM		 1229 if (data->ps != PS_DISABLED)
1230 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1231
90e3012e
JB		 1232 /* release the skb's source info */
1233 skb_orphan(skb);
c0acf38e 1234 skb_dst_drop(skb);
90e3012e
JB		 1235 skb->mark = 0;
1236 secpath_reset(skb);
1237 nf_reset(skb);
1238
b66851c3
TP		 1239 /*
1240 * Get absolute mactime here so all HWs RX at the "same time", and
1241 * absolute TX time for beacon mactime so the timestamp matches.
1242 * Giving beacons a different mactime than non-beacons looks messy, but
1243 * it helps the Toffset be exact and a ~10us mactime discrepancy
1244 * probably doesn't really matter.
1245 */
1246 if (ieee80211_is_beacon(hdr->frame_control) ||
1247 ieee80211_is_probe_resp(hdr->frame_control))
1248 now = data->abs_bcn_ts;
1249 else
1250 now = mac80211_hwsim_get_tsf_raw();
1251
acc1e7a3 1252 /* Copy skb to all enabled radios that are on the current frequency */
0e057d73
JB		 1253 spin_lock(&hwsim_radio_lock);
1254 list_for_each_entry(data2, &hwsim_radios, list) {
acc1e7a3 1255 struct sk_buff *nskb;
e8261171
JB		 1256 struct tx_iter_data tx_iter_data = {
1257 .receive = false,
1258 .channel = chan,
1259 };
acc1e7a3 1260
0e057d73 1261 if (data == data2)
acc1e7a3 1262 continue;
0e057d73 1263
e8261171
JB		 1264 if (!data2->started || (data2->idle && !data2->tmp_chan) ||
1265 !hwsim_ps_rx_ok(data2, skb))
acc1e7a3
JM		 1266 continue;
1267
e8261171
JB		 1268 if (!(data->group & data2->group))
1269 continue;
1270
100cb9ff
MW		 1271 if (data->netgroup != data2->netgroup)
1272 continue;
1273
e8261171
JB		 1274 if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
1275 !hwsim_chans_compat(chan, data2->channel)) {
1276 ieee80211_iterate_active_interfaces_atomic(
8b2c9824
JB		 1277 data2->hw, IEEE80211_IFACE_ITER_NORMAL,
1278 mac80211_hwsim_tx_iter, &tx_iter_data);
e8261171
JB		 1279 if (!tx_iter_data.receive)
1280 continue;
1281 }
1282
90b9e446
JB		 1283 /*
1284 * reserve some space for our vendor and the normal
1285 * radiotap header, since we're copying anyway
1286 */
a357d7f9
JB		 1287 if (skb->len < PAGE_SIZE && paged_rx) {
1288 struct page *page = alloc_page(GFP_ATOMIC);
1289
1290 if (!page)
1291 continue;
1292
1293 nskb = dev_alloc_skb(128);
1294 if (!nskb) {
1295 __free_page(page);
1296 continue;
1297 }
1298
1299 memcpy(page_address(page), skb->data, skb->len);
1300 skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
1301 } else {
1302 nskb = skb_copy(skb, GFP_ATOMIC);
1303 if (!nskb)
1304 continue;
1305 }
acc1e7a3 1306
265dc7f0 1307 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
0e057d73 1308 ack = true;
f483ad25 1309
b66851c3 1310 rx_status.mactime = now + data2->tsf_offset;
90b9e446 1311
f1d58c25 1312 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
1f7bba79
JB		 1313
1314 mac80211_hwsim_add_vendor_rtap(nskb);
1315
2155c3f8
BG		 1316 data2->rx_pkts++;
1317 data2->rx_bytes += nskb->len;
f1d58c25 1318 ieee80211_rx_irqsafe(data2->hw, nskb);
acc1e7a3 1319 }
0e057d73 1320 spin_unlock(&hwsim_radio_lock);
acc1e7a3 1321
e36cfdc9
JM		 1322 return ack;
1323}
1324
36323f81
TH		 1325static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
1326 struct ieee80211_tx_control *control,
1327 struct sk_buff *skb)
e36cfdc9 1328{
e8261171
JB		 1329 struct mac80211_hwsim_data *data = hw->priv;
1330 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
732b5395 1331 struct ieee80211_hdr *hdr = (void *)skb->data;
e8261171
JB		 1332 struct ieee80211_chanctx_conf *chanctx_conf;
1333 struct ieee80211_channel *channel;
0e057d73 1334 bool ack;
15e47304 1335 u32 _portid;
e36cfdc9 1336
e8261171 1337 if (WARN_ON(skb->len < 10)) {
e36cfdc9 1338 /* Should not happen; just a sanity check for addr1 use */
fe0f3cd2 1339 ieee80211_free_txskb(hw, skb);
7bb45683 1340 return;
e36cfdc9
JM		 1341 }
1342
361c3e04 1343 if (!data->use_chanctx) {
e8261171
JB		 1344 channel = data->channel;
1345 } else if (txi->hw_queue == 4) {
1346 channel = data->tmp_chan;
1347 } else {
1348 chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf);
1349 if (chanctx_conf)
4bf88530 1350 channel = chanctx_conf->def.chan;
e8261171
JB		 1351 else
1352 channel = NULL;
1353 }
1354
1355 if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
fe0f3cd2 1356 ieee80211_free_txskb(hw, skb);
e8261171
JB		 1357 return;
1358 }
1359
1360 if (data->idle && !data->tmp_chan) {
1361 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
fe0f3cd2 1362 ieee80211_free_txskb(hw, skb);
e8261171
JB		 1363 return;
1364 }
1365
1366 if (txi->control.vif)
1367 hwsim_check_magic(txi->control.vif);
1368 if (control->sta)
1369 hwsim_check_sta_magic(control->sta);
1370
30686bf7 1371 if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE))
1eb32179
KB		 1372 ieee80211_get_tx_rates(txi->control.vif, control->sta, skb,
1373 txi->control.rates,
1374 ARRAY_SIZE(txi->control.rates));
e8261171 1375
1eb32179 1376 txi->rate_driver_data[0] = channel;
732b5395
JM		 1377
1378 if (skb->len >= 24 + 8 &&
1379 ieee80211_is_probe_resp(hdr->frame_control)) {
1380 /* fake header transmission time */
1381 struct ieee80211_mgmt *mgmt;
1382 struct ieee80211_rate *txrate;
1383 u64 ts;
1384
1385 mgmt = (struct ieee80211_mgmt *)skb->data;
1386 txrate = ieee80211_get_tx_rate(hw, txi);
1387 ts = mac80211_hwsim_get_tsf_raw();
1388 mgmt->u.probe_resp.timestamp =
1389 cpu_to_le64(ts + data->tsf_offset +
1390 24 * 8 * 10 / txrate->bitrate);
1391 }
1392
e8261171
JB		 1393 mac80211_hwsim_monitor_rx(hw, skb, channel);
1394
7882513b 1395 /* wmediumd mode check */
f21e4d8e 1396 _portid = ACCESS_ONCE(data->wmediumd);
7882513b 1397
15e47304
EB		 1398 if (_portid)
1399 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
7882513b
JL		 1400
1401 /* NO wmediumd detected, perfect medium simulation */
2155c3f8
BG		 1402 data->tx_pkts++;
1403 data->tx_bytes += skb->len;
e8261171 1404 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
7882513b 1405
f06b7ab8 1406 if (ack && skb->len >= 16)
e8261171 1407 mac80211_hwsim_monitor_ack(channel, hdr->addr2);
e36cfdc9 1408
e6a9854b 1409 ieee80211_tx_info_clear_status(txi);
2a4ffa4c
JC		 1410
1411 /* frame was transmitted at most favorable rate at first attempt */
1412 txi->control.rates[0].count = 1;
1413 txi->control.rates[1].idx = -1;
1414
e6a9854b
JB		 1415 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
1416 txi->flags |= IEEE80211_TX_STAT_ACK;
acc1e7a3 1417 ieee80211_tx_status_irqsafe(hw, skb);
acc1e7a3
JM		 1418}
1419
1420
1421static int mac80211_hwsim_start(struct ieee80211_hw *hw)
1422{
1423 struct mac80211_hwsim_data *data = hw->priv;
c96c31e4 1424 wiphy_debug(hw->wiphy, "%s\n", __func__);
3db1cd5c 1425 data->started = true;
acc1e7a3
JM		 1426 return 0;
1427}
1428
1429
1430static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
1431{
1432 struct mac80211_hwsim_data *data = hw->priv;
3db1cd5c 1433 data->started = false;
01e59e46 1434 tasklet_hrtimer_cancel(&data->beacon_timer);
c96c31e4 1435 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 1436}
1437
1438
1439static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
1ed32e4f 1440 struct ieee80211_vif *vif)
acc1e7a3 1441{
c96c31e4 1442 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 1443 __func__, ieee80211_vif_type_p2p(vif),
1444 vif->addr);
1ed32e4f 1445 hwsim_set_magic(vif);
e8261171
JB		 1446
1447 vif->cab_queue = 0;
1448 vif->hw_queue[IEEE80211_AC_VO] = 0;
1449 vif->hw_queue[IEEE80211_AC_VI] = 1;
1450 vif->hw_queue[IEEE80211_AC_BE] = 2;
1451 vif->hw_queue[IEEE80211_AC_BK] = 3;
1452
acc1e7a3
JM		 1453 return 0;
1454}
1455
1456
c35d0270
JB		 1457static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
1458 struct ieee80211_vif *vif,
2ca27bcf
JB		 1459 enum nl80211_iftype newtype,
1460 bool newp2p)
c35d0270 1461{
2ca27bcf 1462 newtype = ieee80211_iftype_p2p(newtype, newp2p);
c35d0270
JB		 1463 wiphy_debug(hw->wiphy,
1464 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
2ca27bcf
JB		 1465 __func__, ieee80211_vif_type_p2p(vif),
1466 newtype, vif->addr);
c35d0270
JB		 1467 hwsim_check_magic(vif);
1468
3eb92f6a
JB		 1469 /*
1470 * interface may change from non-AP to AP in
1471 * which case this needs to be set up again
1472 */
1473 vif->cab_queue = 0;
1474
c35d0270
JB		 1475 return 0;
1476}
1477
acc1e7a3 1478static void mac80211_hwsim_remove_interface(
1ed32e4f 1479 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
acc1e7a3 1480{
c96c31e4 1481 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 1482 __func__, ieee80211_vif_type_p2p(vif),
1483 vif->addr);
1ed32e4f
JB		 1484 hwsim_check_magic(vif);
1485 hwsim_clear_magic(vif);
acc1e7a3
JM		 1486}
1487
e8261171
JB		 1488static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
1489 struct sk_buff *skb,
1490 struct ieee80211_channel *chan)
1491{
f21e4d8e
MW		 1492 struct mac80211_hwsim_data *data = hw->priv;
1493 u32 _pid = ACCESS_ONCE(data->wmediumd);
e8261171 1494
30686bf7 1495 if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE)) {
1eb32179
KB		 1496 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1497 ieee80211_get_tx_rates(txi->control.vif, NULL, skb,
1498 txi->control.rates,
1499 ARRAY_SIZE(txi->control.rates));
1500 }
1501
e8261171
JB		 1502 mac80211_hwsim_monitor_rx(hw, skb, chan);
1503
1504 if (_pid)
1505 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
1506
1507 mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
1508 dev_kfree_skb(skb);
1509}
acc1e7a3
JM		 1510
1511static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
1512 struct ieee80211_vif *vif)
1513{
b66851c3
TP		 1514 struct mac80211_hwsim_data *data = arg;
1515 struct ieee80211_hw *hw = data->hw;
1516 struct ieee80211_tx_info *info;
1517 struct ieee80211_rate *txrate;
1518 struct ieee80211_mgmt *mgmt;
acc1e7a3 1519 struct sk_buff *skb;
acc1e7a3 1520
8aa21e6f
JB		 1521 hwsim_check_magic(vif);
1522
55b39619 1523 if (vif->type != NL80211_IFTYPE_AP &&
2b2d7795
JB		 1524 vif->type != NL80211_IFTYPE_MESH_POINT &&
1525 vif->type != NL80211_IFTYPE_ADHOC)
acc1e7a3
JM		 1526 return;
1527
1528 skb = ieee80211_beacon_get(hw, vif);
1529 if (skb == NULL)
1530 return;
b66851c3 1531 info = IEEE80211_SKB_CB(skb);
30686bf7 1532 if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE))
1eb32179
KB		 1533 ieee80211_get_tx_rates(vif, NULL, skb,
1534 info->control.rates,
1535 ARRAY_SIZE(info->control.rates));
1536
b66851c3
TP		 1537 txrate = ieee80211_get_tx_rate(hw, info);
1538
1539 mgmt = (struct ieee80211_mgmt *) skb->data;
1540 /* fake header transmission time */
1541 data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
1542 mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
1543 data->tsf_offset +
1544 24 * 8 * 10 / txrate->bitrate);
7882513b 1545
e8261171 1546 mac80211_hwsim_tx_frame(hw, skb,
4bf88530 1547 rcu_dereference(vif->chanctx_conf)->def.chan);
0037db63
AO		 1548
1549 if (vif->csa_active && ieee80211_csa_is_complete(vif))
1550 ieee80211_csa_finish(vif);
acc1e7a3
JM		 1551}
1552
01e59e46
TP		 1553static enum hrtimer_restart
1554mac80211_hwsim_beacon(struct hrtimer *timer)
acc1e7a3 1555{
01e59e46
TP		 1556 struct mac80211_hwsim_data *data =
1557 container_of(timer, struct mac80211_hwsim_data,
1558 beacon_timer.timer);
1559 struct ieee80211_hw *hw = data->hw;
1560 u64 bcn_int = data->beacon_int;
1561 ktime_t next_bcn;
acc1e7a3 1562
4c4c671a 1563 if (!data->started)
01e59e46 1564 goto out;
acc1e7a3 1565
f248f105 1566 ieee80211_iterate_active_interfaces_atomic(
8b2c9824 1567 hw, IEEE80211_IFACE_ITER_NORMAL,
b66851c3 1568 mac80211_hwsim_beacon_tx, data);
acc1e7a3 1569
c51f8783
TP		 1570 /* beacon at new TBTT + beacon interval */
1571 if (data->bcn_delta) {
1572 bcn_int -= data->bcn_delta;
1573 data->bcn_delta = 0;
1574 }
1575
01e59e46
TP		 1576 next_bcn = ktime_add(hrtimer_get_expires(timer),
1577 ns_to_ktime(bcn_int * 1000));
1578 tasklet_hrtimer_start(&data->beacon_timer, next_bcn, HRTIMER_MODE_ABS);
1579out:
1580 return HRTIMER_NORESTART;
acc1e7a3
JM		 1581}
1582
675a0b04
KB		 1583static const char * const hwsim_chanwidths[] = {
1584 [NL80211_CHAN_WIDTH_20_NOHT] = "noht",
1585 [NL80211_CHAN_WIDTH_20] = "ht20",
1586 [NL80211_CHAN_WIDTH_40] = "ht40",
1587 [NL80211_CHAN_WIDTH_80] = "vht80",
1588 [NL80211_CHAN_WIDTH_80P80] = "vht80p80",
1589 [NL80211_CHAN_WIDTH_160] = "vht160",
0aaffa9b 1590};
acc1e7a3 1591
e8975581 1592static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
acc1e7a3
JM		 1593{
1594 struct mac80211_hwsim_data *data = hw->priv;
e8975581 1595 struct ieee80211_conf *conf = &hw->conf;
0f78231b
JB		 1596 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
1597 [IEEE80211_SMPS_AUTOMATIC] = "auto",
1598 [IEEE80211_SMPS_OFF] = "off",
1599 [IEEE80211_SMPS_STATIC] = "static",
1600 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
1601 };
1602
675a0b04
KB		 1603 if (conf->chandef.chan)
1604 wiphy_debug(hw->wiphy,
1605 "%s (freq=%d(%d - %d)/%s idle=%d ps=%d smps=%s)\n",
1606 __func__,
1607 conf->chandef.chan->center_freq,
1608 conf->chandef.center_freq1,
1609 conf->chandef.center_freq2,
1610 hwsim_chanwidths[conf->chandef.width],
1611 !!(conf->flags & IEEE80211_CONF_IDLE),
1612 !!(conf->flags & IEEE80211_CONF_PS),
1613 smps_modes[conf->smps_mode]);
1614 else
1615 wiphy_debug(hw->wiphy,
1616 "%s (freq=0 idle=%d ps=%d smps=%s)\n",
1617 __func__,
1618 !!(conf->flags & IEEE80211_CONF_IDLE),
1619 !!(conf->flags & IEEE80211_CONF_PS),
1620 smps_modes[conf->smps_mode]);
acc1e7a3 1621
70541839
JM		 1622 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1623
675a0b04 1624 data->channel = conf->chandef.chan;
e8261171 1625
361c3e04 1626 WARN_ON(data->channel && data->use_chanctx);
e8261171 1627
bdd7bd16 1628 data->power_level = conf->power_level;
4c4c671a 1629 if (!data->started || !data->beacon_int)
01e59e46
TP		 1630 tasklet_hrtimer_cancel(&data->beacon_timer);
1631 else if (!hrtimer_is_queued(&data->beacon_timer.timer)) {
c51f8783
TP		 1632 u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
1633 u32 bcn_int = data->beacon_int;
1634 u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1635
01e59e46 1636 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1637 ns_to_ktime(until_tbtt * 1000),
01e59e46
TP		 1638 HRTIMER_MODE_REL);
1639 }
acc1e7a3
JM		 1640
1641 return 0;
1642}
1643
1644
1645static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
1646 unsigned int changed_flags,
3ac64bee 1647 unsigned int *total_flags,u64 multicast)
acc1e7a3
JM		 1648{
1649 struct mac80211_hwsim_data *data = hw->priv;
1650
c96c31e4 1651 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 1652
1653 data->rx_filter = 0;
acc1e7a3
JM		 1654 if (*total_flags & FIF_ALLMULTI)
1655 data->rx_filter |= FIF_ALLMULTI;
1656
1657 *total_flags = data->rx_filter;
1658}
1659
0bb861e6
JM		 1660static void mac80211_hwsim_bcn_en_iter(void *data, u8 *mac,
1661 struct ieee80211_vif *vif)
1662{
1663 unsigned int *count = data;
1664 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1665
1666 if (vp->bcn_en)
1667 (*count)++;
1668}
1669
8aa21e6f
JB		 1670static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
1671 struct ieee80211_vif *vif,
1672 struct ieee80211_bss_conf *info,
1673 u32 changed)
1674{
fc6971d4 1675 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
57c4d7b4 1676 struct mac80211_hwsim_data *data = hw->priv;
fc6971d4 1677
8aa21e6f 1678 hwsim_check_magic(vif);
fe63bfa3 1679
0bb861e6
JM		 1680 wiphy_debug(hw->wiphy, "%s(changed=0x%x vif->addr=%pM)\n",
1681 __func__, changed, vif->addr);
fe63bfa3 1682
2d0ddec5 1683 if (changed & BSS_CHANGED_BSSID) {
c96c31e4
JP		 1684 wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
1685 __func__, info->bssid);
2d0ddec5
JB		 1686 memcpy(vp->bssid, info->bssid, ETH_ALEN);
1687 }
1688
fe63bfa3 1689 if (changed & BSS_CHANGED_ASSOC) {
c96c31e4
JP		 1690 wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
1691 info->assoc, info->aid);
fc6971d4
JM		 1692 vp->assoc = info->assoc;
1693 vp->aid = info->aid;
fe63bfa3
JM		 1694 }
1695
01e59e46 1696 if (changed & BSS_CHANGED_BEACON_ENABLED) {
56067628
JB		 1697 wiphy_debug(hw->wiphy, " BCN EN: %d (BI=%u)\n",
1698 info->enable_beacon, info->beacon_int);
0bb861e6 1699 vp->bcn_en = info->enable_beacon;
01e59e46
TP		 1700 if (data->started &&
1701 !hrtimer_is_queued(&data->beacon_timer.timer) &&
1702 info->enable_beacon) {
c51f8783
TP		 1703 u64 tsf, until_tbtt;
1704 u32 bcn_int;
56067628 1705 data->beacon_int = info->beacon_int * 1024;
c51f8783
TP		 1706 tsf = mac80211_hwsim_get_tsf(hw, vif);
1707 bcn_int = data->beacon_int;
1708 until_tbtt = bcn_int - do_div(tsf, bcn_int);
01e59e46 1709 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1710 ns_to_ktime(until_tbtt * 1000),
01e59e46 1711 HRTIMER_MODE_REL);
0bb861e6
JM		 1712 } else if (!info->enable_beacon) {
1713 unsigned int count = 0;
cdb1b805 1714 ieee80211_iterate_active_interfaces_atomic(
0bb861e6
JM		 1715 data->hw, IEEE80211_IFACE_ITER_NORMAL,
1716 mac80211_hwsim_bcn_en_iter, &count);
1717 wiphy_debug(hw->wiphy, " beaconing vifs remaining: %u",
1718 count);
56067628 1719 if (count == 0) {
0bb861e6 1720 tasklet_hrtimer_cancel(&data->beacon_timer);
56067628
JB		 1721 data->beacon_int = 0;
1722 }
0bb861e6 1723 }
57c4d7b4
JB		 1724 }
1725
fe63bfa3 1726 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
c96c31e4
JP		 1727 wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
1728 info->use_cts_prot);
fe63bfa3
JM		 1729 }
1730
1731 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
c96c31e4
JP		 1732 wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
1733 info->use_short_preamble);
fe63bfa3
JM		 1734 }
1735
1736 if (changed & BSS_CHANGED_ERP_SLOT) {
c96c31e4 1737 wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
fe63bfa3
JM		 1738 }
1739
1740 if (changed & BSS_CHANGED_HT) {
4bf88530
JB		 1741 wiphy_debug(hw->wiphy, " HT: op_mode=0x%x\n",
1742 info->ht_operation_mode);
fe63bfa3
JM		 1743 }
1744
1745 if (changed & BSS_CHANGED_BASIC_RATES) {
c96c31e4
JP		 1746 wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
1747 (unsigned long long) info->basic_rates);
fe63bfa3 1748 }
cbc668a7
JB		 1749
1750 if (changed & BSS_CHANGED_TXPOWER)
1751 wiphy_debug(hw->wiphy, " TX Power: %d dBm\n", info->txpower);
8aa21e6f
JB		 1752}
1753
1d669cbf
JB		 1754static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
1755 struct ieee80211_vif *vif,
1756 struct ieee80211_sta *sta)
1757{
1758 hwsim_check_magic(vif);
1759 hwsim_set_sta_magic(sta);
1760
1761 return 0;
1762}
1763
1764static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
1765 struct ieee80211_vif *vif,
1766 struct ieee80211_sta *sta)
1767{
1768 hwsim_check_magic(vif);
1769 hwsim_clear_sta_magic(sta);
1770
1771 return 0;
1772}
1773
8aa21e6f
JB		 1774static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
1775 struct ieee80211_vif *vif,
17741cdc
JB		 1776 enum sta_notify_cmd cmd,
1777 struct ieee80211_sta *sta)
8aa21e6f
JB		 1778{
1779 hwsim_check_magic(vif);
1d669cbf 1780
81c06523 1781 switch (cmd) {
89fad578
CL		 1782 case STA_NOTIFY_SLEEP:
1783 case STA_NOTIFY_AWAKE:
1784 /* TODO: make good use of these flags */
1785 break;
1d669cbf
JB		 1786 default:
1787 WARN(1, "Invalid sta notify: %d\n", cmd);
1788 break;
81c06523
JB		 1789 }
1790}
1791
1792static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
1793 struct ieee80211_sta *sta,
1794 bool set)
1795{
1796 hwsim_check_sta_magic(sta);
1797 return 0;
8aa21e6f 1798}
acc1e7a3 1799
1e898ff8 1800static int mac80211_hwsim_conf_tx(
8a3a3c85
EP		 1801 struct ieee80211_hw *hw,
1802 struct ieee80211_vif *vif, u16 queue,
1e898ff8
JM		 1803 const struct ieee80211_tx_queue_params *params)
1804{
c96c31e4
JP		 1805 wiphy_debug(hw->wiphy,
1806 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1807 __func__, queue,
1808 params->txop, params->cw_min,
1809 params->cw_max, params->aifs);
1e898ff8
JM		 1810 return 0;
1811}
1812
1289723e
HS		 1813static int mac80211_hwsim_get_survey(
1814 struct ieee80211_hw *hw, int idx,
1815 struct survey_info *survey)
1816{
1817 struct ieee80211_conf *conf = &hw->conf;
1818
c96c31e4 1819 wiphy_debug(hw->wiphy, "%s (idx=%d)\n", __func__, idx);
1289723e
HS		 1820
1821 if (idx != 0)
1822 return -ENOENT;
1823
1824 /* Current channel */
675a0b04 1825 survey->channel = conf->chandef.chan;
1289723e
HS		 1826
1827 /*
1828 * Magically conjured noise level --- this is only ok for simulated hardware.
1829 *
1830 * A real driver which cannot determine the real channel noise MUST NOT
1831 * report any noise, especially not a magically conjured one :-)
1832 */
1833 survey->filled = SURVEY_INFO_NOISE_DBM;
1834 survey->noise = -92;
1835
1836 return 0;
1837}
1838
aff89a9b
JB		 1839#ifdef CONFIG_NL80211_TESTMODE
1840/*
1841 * This section contains example code for using netlink
1842 * attributes with the testmode command in nl80211.
1843 */
1844
1845/* These enums need to be kept in sync with userspace */
1846enum hwsim_testmode_attr {
1847 __HWSIM_TM_ATTR_INVALID = 0,
1848 HWSIM_TM_ATTR_CMD = 1,
1849 HWSIM_TM_ATTR_PS = 2,
1850
1851 /* keep last */
1852 __HWSIM_TM_ATTR_AFTER_LAST,
1853 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1854};
1855
1856enum hwsim_testmode_cmd {
1857 HWSIM_TM_CMD_SET_PS = 0,
1858 HWSIM_TM_CMD_GET_PS = 1,
4d6d0ae2
JB		 1859 HWSIM_TM_CMD_STOP_QUEUES = 2,
1860 HWSIM_TM_CMD_WAKE_QUEUES = 3,
aff89a9b
JB		 1861};
1862
1863static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1864 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1865 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1866};
1867
5bc38193 1868static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
52981cd7 1869 struct ieee80211_vif *vif,
5bc38193 1870 void *data, int len)
aff89a9b
JB		 1871{
1872 struct mac80211_hwsim_data *hwsim = hw->priv;
1873 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1874 struct sk_buff *skb;
1875 int err, ps;
1876
1877 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
1878 hwsim_testmode_policy);
1879 if (err)
1880 return err;
1881
1882 if (!tb[HWSIM_TM_ATTR_CMD])
1883 return -EINVAL;
1884
1885 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1886 case HWSIM_TM_CMD_SET_PS:
1887 if (!tb[HWSIM_TM_ATTR_PS])
1888 return -EINVAL;
1889 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1890 return hwsim_fops_ps_write(hwsim, ps);
1891 case HWSIM_TM_CMD_GET_PS:
1892 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1893 nla_total_size(sizeof(u32)));
1894 if (!skb)
1895 return -ENOMEM;
633c9389
DM		 1896 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
1897 goto nla_put_failure;
aff89a9b 1898 return cfg80211_testmode_reply(skb);
4d6d0ae2
JB		 1899 case HWSIM_TM_CMD_STOP_QUEUES:
1900 ieee80211_stop_queues(hw);
1901 return 0;
1902 case HWSIM_TM_CMD_WAKE_QUEUES:
1903 ieee80211_wake_queues(hw);
1904 return 0;
aff89a9b
JB		 1905 default:
1906 return -EOPNOTSUPP;
1907 }
1908
1909 nla_put_failure:
1910 kfree_skb(skb);
1911 return -ENOBUFS;
1912}
1913#endif
1914
8b73d13a
JB		 1915static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1916 struct ieee80211_vif *vif,
50ea05ef 1917 struct ieee80211_ampdu_params *params)
8b73d13a 1918{
50ea05ef
SS		 1919 struct ieee80211_sta *sta = params->sta;
1920 enum ieee80211_ampdu_mlme_action action = params->action;
1921 u16 tid = params->tid;
1922
8b73d13a
JB		 1923 switch (action) {
1924 case IEEE80211_AMPDU_TX_START:
1925 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1926 break;
18b559d5
JB		 1927 case IEEE80211_AMPDU_TX_STOP_CONT:
1928 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1929 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
8b73d13a
JB		 1930 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1931 break;
1932 case IEEE80211_AMPDU_TX_OPERATIONAL:
1933 break;
1934 case IEEE80211_AMPDU_RX_START:
1935 case IEEE80211_AMPDU_RX_STOP:
1936 break;
1937 default:
1938 return -EOPNOTSUPP;
1939 }
1940
1941 return 0;
1942}
1943
77be2c54
EG		 1944static void mac80211_hwsim_flush(struct ieee80211_hw *hw,
1945 struct ieee80211_vif *vif,
1946 u32 queues, bool drop)
a80f7c0b 1947{
7882513b 1948 /* Not implemented, queues only on kernel side */
a80f7c0b
JB		 1949}
1950
e8261171 1951static void hw_scan_work(struct work_struct *work)
69068036 1952{
e8261171
JB		 1953 struct mac80211_hwsim_data *hwsim =
1954 container_of(work, struct mac80211_hwsim_data, hw_scan.work);
1955 struct cfg80211_scan_request *req = hwsim->hw_scan_request;
1956 int dwell, i;
69068036 1957
e8261171
JB		 1958 mutex_lock(&hwsim->mutex);
1959 if (hwsim->scan_chan_idx >= req->n_channels) {
1960 wiphy_debug(hwsim->hw->wiphy, "hw scan complete\n");
1961 ieee80211_scan_completed(hwsim->hw, false);
1962 hwsim->hw_scan_request = NULL;
1963 hwsim->hw_scan_vif = NULL;
1964 hwsim->tmp_chan = NULL;
1965 mutex_unlock(&hwsim->mutex);
1966 return;
1967 }
1968
1969 wiphy_debug(hwsim->hw->wiphy, "hw scan %d MHz\n",
1970 req->channels[hwsim->scan_chan_idx]->center_freq);
1971
1972 hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
a8e828de
JB		 1973 if (hwsim->tmp_chan->flags & (IEEE80211_CHAN_NO_IR |
1974 IEEE80211_CHAN_RADAR) ||
e8261171
JB		 1975 !req->n_ssids) {
1976 dwell = 120;
1977 } else {
1978 dwell = 30;
1979 /* send probes */
1980 for (i = 0; i < req->n_ssids; i++) {
1981 struct sk_buff *probe;
12880d16 1982 struct ieee80211_mgmt *mgmt;
e8261171
JB		 1983
1984 probe = ieee80211_probereq_get(hwsim->hw,
339467b9 1985 hwsim->scan_addr,
e8261171
JB		 1986 req->ssids[i].ssid,
1987 req->ssids[i].ssid_len,
b9a9ada1 1988 req->ie_len);
e8261171
JB		 1989 if (!probe)
1990 continue;
b9a9ada1 1991
12880d16
JM		 1992 mgmt = (struct ieee80211_mgmt *) probe->data;
1993 memcpy(mgmt->da, req->bssid, ETH_ALEN);
1994 memcpy(mgmt->bssid, req->bssid, ETH_ALEN);
1995
b9a9ada1
JB		 1996 if (req->ie_len)
1997 memcpy(skb_put(probe, req->ie_len), req->ie,
1998 req->ie_len);
1999
e8261171
JB		 2000 local_bh_disable();
2001 mac80211_hwsim_tx_frame(hwsim->hw, probe,
2002 hwsim->tmp_chan);
2003 local_bh_enable();
2004 }
2005 }
2006 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
2007 msecs_to_jiffies(dwell));
2008 hwsim->scan_chan_idx++;
2009 mutex_unlock(&hwsim->mutex);
69068036
JB		 2010}
2011
2012static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
a060bbfe 2013 struct ieee80211_vif *vif,
c56ef672 2014 struct ieee80211_scan_request *hw_req)
69068036 2015{
e8261171 2016 struct mac80211_hwsim_data *hwsim = hw->priv;
c56ef672 2017 struct cfg80211_scan_request *req = &hw_req->req;
69068036 2018
e8261171
JB		 2019 mutex_lock(&hwsim->mutex);
2020 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
2021 mutex_unlock(&hwsim->mutex);
2022 return -EBUSY;
2023 }
2024 hwsim->hw_scan_request = req;
2025 hwsim->hw_scan_vif = vif;
2026 hwsim->scan_chan_idx = 0;
339467b9
JB		 2027 if (req->flags & NL80211_SCAN_FLAG_RANDOM_ADDR)
2028 get_random_mask_addr(hwsim->scan_addr,
2029 hw_req->req.mac_addr,
2030 hw_req->req.mac_addr_mask);
2031 else
2032 memcpy(hwsim->scan_addr, vif->addr, ETH_ALEN);
e8261171 2033 mutex_unlock(&hwsim->mutex);
69068036 2034
e8261171 2035 wiphy_debug(hw->wiphy, "hwsim hw_scan request\n");
69068036 2036
e8261171 2037 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
69068036
JB		 2038
2039 return 0;
2040}
2041
e8261171
JB		 2042static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
2043 struct ieee80211_vif *vif)
2044{
2045 struct mac80211_hwsim_data *hwsim = hw->priv;
2046
2047 wiphy_debug(hw->wiphy, "hwsim cancel_hw_scan\n");
2048
2049 cancel_delayed_work_sync(&hwsim->hw_scan);
2050
2051 mutex_lock(&hwsim->mutex);
2052 ieee80211_scan_completed(hwsim->hw, true);
2053 hwsim->tmp_chan = NULL;
2054 hwsim->hw_scan_request = NULL;
2055 hwsim->hw_scan_vif = NULL;
2056 mutex_unlock(&hwsim->mutex);
2057}
2058
a344d677
JB		 2059static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw,
2060 struct ieee80211_vif *vif,
2061 const u8 *mac_addr)
f74cb0f7
LR		 2062{
2063 struct mac80211_hwsim_data *hwsim = hw->priv;
2064
2065 mutex_lock(&hwsim->mutex);
2066
2067 if (hwsim->scanning) {
2068 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
2069 goto out;
2070 }
2071
2072 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
339467b9
JB		 2073
2074 memcpy(hwsim->scan_addr, mac_addr, ETH_ALEN);
f74cb0f7
LR		 2075 hwsim->scanning = true;
2076
2077out:
2078 mutex_unlock(&hwsim->mutex);
2079}
2080
a344d677
JB		 2081static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw,
2082 struct ieee80211_vif *vif)
f74cb0f7
LR		 2083{
2084 struct mac80211_hwsim_data *hwsim = hw->priv;
2085
2086 mutex_lock(&hwsim->mutex);
2087
2088 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
23ff98fc 2089 hwsim->scanning = false;
93803b33 2090 eth_zero_addr(hwsim->scan_addr);
f74cb0f7
LR		 2091
2092 mutex_unlock(&hwsim->mutex);
2093}
2094
661ef475
JB		 2095static void hw_roc_start(struct work_struct *work)
2096{
2097 struct mac80211_hwsim_data *hwsim =
2098 container_of(work, struct mac80211_hwsim_data, roc_start.work);
2099
2100 mutex_lock(&hwsim->mutex);
2101
2102 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC begins\n");
2103 hwsim->tmp_chan = hwsim->roc_chan;
2104 ieee80211_ready_on_channel(hwsim->hw);
2105
2106 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->roc_done,
2107 msecs_to_jiffies(hwsim->roc_duration));
2108
2109 mutex_unlock(&hwsim->mutex);
2110}
2111
e8261171
JB		 2112static void hw_roc_done(struct work_struct *work)
2113{
2114 struct mac80211_hwsim_data *hwsim =
2115 container_of(work, struct mac80211_hwsim_data, roc_done.work);
2116
2117 mutex_lock(&hwsim->mutex);
2118 ieee80211_remain_on_channel_expired(hwsim->hw);
2119 hwsim->tmp_chan = NULL;
2120 mutex_unlock(&hwsim->mutex);
2121
2122 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC expired\n");
2123}
2124
2125static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
49884568 2126 struct ieee80211_vif *vif,
e8261171 2127 struct ieee80211_channel *chan,
d339d5ca
IP		 2128 int duration,
2129 enum ieee80211_roc_type type)
e8261171
JB		 2130{
2131 struct mac80211_hwsim_data *hwsim = hw->priv;
2132
2133 mutex_lock(&hwsim->mutex);
2134 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
2135 mutex_unlock(&hwsim->mutex);
2136 return -EBUSY;
2137 }
2138
661ef475
JB		 2139 hwsim->roc_chan = chan;
2140 hwsim->roc_duration = duration;
e8261171
JB		 2141 mutex_unlock(&hwsim->mutex);
2142
2143 wiphy_debug(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
2144 chan->center_freq, duration);
661ef475 2145 ieee80211_queue_delayed_work(hw, &hwsim->roc_start, HZ/50);
e8261171 2146
e8261171
JB		 2147 return 0;
2148}
2149
2150static int mac80211_hwsim_croc(struct ieee80211_hw *hw)
2151{
2152 struct mac80211_hwsim_data *hwsim = hw->priv;
2153
661ef475 2154 cancel_delayed_work_sync(&hwsim->roc_start);
e8261171
JB		 2155 cancel_delayed_work_sync(&hwsim->roc_done);
2156
2157 mutex_lock(&hwsim->mutex);
2158 hwsim->tmp_chan = NULL;
2159 mutex_unlock(&hwsim->mutex);
2160
2161 wiphy_debug(hw->wiphy, "hwsim ROC canceled\n");
2162
2163 return 0;
2164}
2165
2166static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
2167 struct ieee80211_chanctx_conf *ctx)
2168{
2169 hwsim_set_chanctx_magic(ctx);
4bf88530
JB		 2170 wiphy_debug(hw->wiphy,
2171 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2172 ctx->def.chan->center_freq, ctx->def.width,
2173 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 2174 return 0;
2175}
2176
2177static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
2178 struct ieee80211_chanctx_conf *ctx)
2179{
4bf88530
JB		 2180 wiphy_debug(hw->wiphy,
2181 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2182 ctx->def.chan->center_freq, ctx->def.width,
2183 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 2184 hwsim_check_chanctx_magic(ctx);
2185 hwsim_clear_chanctx_magic(ctx);
2186}
2187
2188static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
2189 struct ieee80211_chanctx_conf *ctx,
2190 u32 changed)
2191{
2192 hwsim_check_chanctx_magic(ctx);
4bf88530
JB		 2193 wiphy_debug(hw->wiphy,
2194 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2195 ctx->def.chan->center_freq, ctx->def.width,
2196 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 2197}
2198
2199static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
2200 struct ieee80211_vif *vif,
2201 struct ieee80211_chanctx_conf *ctx)
2202{
2203 hwsim_check_magic(vif);
2204 hwsim_check_chanctx_magic(ctx);
2205
2206 return 0;
2207}
2208
2209static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
2210 struct ieee80211_vif *vif,
2211 struct ieee80211_chanctx_conf *ctx)
2212{
2213 hwsim_check_magic(vif);
2214 hwsim_check_chanctx_magic(ctx);
2215}
2216
2155c3f8
BG		 2217static const char mac80211_hwsim_gstrings_stats[][ETH_GSTRING_LEN] = {
2218 "tx_pkts_nic",
2219 "tx_bytes_nic",
2220 "rx_pkts_nic",
2221 "rx_bytes_nic",
2222 "d_tx_dropped",
2223 "d_tx_failed",
2224 "d_ps_mode",
2225 "d_group",
2226 "d_tx_power",
2227};
2228
2229#define MAC80211_HWSIM_SSTATS_LEN ARRAY_SIZE(mac80211_hwsim_gstrings_stats)
2230
2231static void mac80211_hwsim_get_et_strings(struct ieee80211_hw *hw,
2232 struct ieee80211_vif *vif,
2233 u32 sset, u8 *data)
2234{
2235 if (sset == ETH_SS_STATS)
2236 memcpy(data, *mac80211_hwsim_gstrings_stats,
2237 sizeof(mac80211_hwsim_gstrings_stats));
2238}
2239
2240static int mac80211_hwsim_get_et_sset_count(struct ieee80211_hw *hw,
2241 struct ieee80211_vif *vif, int sset)
2242{
2243 if (sset == ETH_SS_STATS)
2244 return MAC80211_HWSIM_SSTATS_LEN;
2245 return 0;
2246}
2247
2248static void mac80211_hwsim_get_et_stats(struct ieee80211_hw *hw,
2249 struct ieee80211_vif *vif,
2250 struct ethtool_stats *stats, u64 *data)
2251{
2252 struct mac80211_hwsim_data *ar = hw->priv;
2253 int i = 0;
2254
2255 data[i++] = ar->tx_pkts;
2256 data[i++] = ar->tx_bytes;
2257 data[i++] = ar->rx_pkts;
2258 data[i++] = ar->rx_bytes;
2259 data[i++] = ar->tx_dropped;
2260 data[i++] = ar->tx_failed;
2261 data[i++] = ar->ps;
2262 data[i++] = ar->group;
2263 data[i++] = ar->power_level;
2264
2265 WARN_ON(i != MAC80211_HWSIM_SSTATS_LEN);
2266}
2267
38ed5048 2268static const struct ieee80211_ops mac80211_hwsim_ops = {
acc1e7a3
JM		 2269 .tx = mac80211_hwsim_tx,
2270 .start = mac80211_hwsim_start,
2271 .stop = mac80211_hwsim_stop,
2272 .add_interface = mac80211_hwsim_add_interface,
c35d0270 2273 .change_interface = mac80211_hwsim_change_interface,
acc1e7a3
JM		 2274 .remove_interface = mac80211_hwsim_remove_interface,
2275 .config = mac80211_hwsim_config,
2276 .configure_filter = mac80211_hwsim_configure_filter,
8aa21e6f 2277 .bss_info_changed = mac80211_hwsim_bss_info_changed,
1d669cbf
JB		 2278 .sta_add = mac80211_hwsim_sta_add,
2279 .sta_remove = mac80211_hwsim_sta_remove,
8aa21e6f 2280 .sta_notify = mac80211_hwsim_sta_notify,
81c06523 2281 .set_tim = mac80211_hwsim_set_tim,
1e898ff8 2282 .conf_tx = mac80211_hwsim_conf_tx,
1289723e 2283 .get_survey = mac80211_hwsim_get_survey,
aff89a9b 2284 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
8b73d13a 2285 .ampdu_action = mac80211_hwsim_ampdu_action,
f74cb0f7
LR		 2286 .sw_scan_start = mac80211_hwsim_sw_scan,
2287 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
a80f7c0b 2288 .flush = mac80211_hwsim_flush,
12ce8ba3
JC		 2289 .get_tsf = mac80211_hwsim_get_tsf,
2290 .set_tsf = mac80211_hwsim_set_tsf,
2155c3f8
BG		 2291 .get_et_sset_count = mac80211_hwsim_get_et_sset_count,
2292 .get_et_stats = mac80211_hwsim_get_et_stats,
2293 .get_et_strings = mac80211_hwsim_get_et_strings,
acc1e7a3
JM		 2294};
2295
38ed5048 2296static struct ieee80211_ops mac80211_hwsim_mchan_ops;
acc1e7a3 2297
62759361
JR		 2298struct hwsim_new_radio_params {
2299 unsigned int channels;
2300 const char *reg_alpha2;
2301 const struct ieee80211_regdomain *regd;
2302 bool reg_strict;
2303 bool p2p_device;
2304 bool use_chanctx;
2305 bool destroy_on_close;
2306 const char *hwname;
2307 bool no_vif;
2308};
2309
2310static void hwsim_mcast_config_msg(struct sk_buff *mcast_skb,
2311 struct genl_info *info)
2312{
2313 if (info)
92c14d9b
JB		 2314 genl_notify(&hwsim_genl_family, mcast_skb, info,
2315 HWSIM_MCGRP_CONFIG, GFP_KERNEL);
62759361
JR		 2316 else
2317 genlmsg_multicast(&hwsim_genl_family, mcast_skb, 0,
2318 HWSIM_MCGRP_CONFIG, GFP_KERNEL);
2319}
2320
c449981c
PF		 2321static int append_radio_msg(struct sk_buff *skb, int id,
2322 struct hwsim_new_radio_params *param)
62759361 2323{
62759361
JR		 2324 int ret;
2325
62759361
JR		 2326 ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
2327 if (ret < 0)
c449981c 2328 return ret;
62759361
JR		 2329
2330 if (param->channels) {
2331 ret = nla_put_u32(skb, HWSIM_ATTR_CHANNELS, param->channels);
2332 if (ret < 0)
c449981c 2333 return ret;
62759361
JR		 2334 }
2335
2336 if (param->reg_alpha2) {
2337 ret = nla_put(skb, HWSIM_ATTR_REG_HINT_ALPHA2, 2,
2338 param->reg_alpha2);
2339 if (ret < 0)
c449981c 2340 return ret;
62759361
JR		 2341 }
2342
2343 if (param->regd) {
2344 int i;
2345
5875755c
JB		 2346 for (i = 0; i < ARRAY_SIZE(hwsim_world_regdom_custom); i++) {
2347 if (hwsim_world_regdom_custom[i] != param->regd)
2348 continue;
62759361 2349
62759361
JR		 2350 ret = nla_put_u32(skb, HWSIM_ATTR_REG_CUSTOM_REG, i);
2351 if (ret < 0)
c449981c 2352 return ret;
5875755c 2353 break;
62759361
JR		 2354 }
2355 }
2356
2357 if (param->reg_strict) {
2358 ret = nla_put_flag(skb, HWSIM_ATTR_REG_STRICT_REG);
2359 if (ret < 0)
c449981c 2360 return ret;
62759361
JR		 2361 }
2362
2363 if (param->p2p_device) {
2364 ret = nla_put_flag(skb, HWSIM_ATTR_SUPPORT_P2P_DEVICE);
2365 if (ret < 0)
c449981c 2366 return ret;
62759361
JR		 2367 }
2368
2369 if (param->use_chanctx) {
2370 ret = nla_put_flag(skb, HWSIM_ATTR_USE_CHANCTX);
2371 if (ret < 0)
c449981c 2372 return ret;
62759361
JR		 2373 }
2374
2375 if (param->hwname) {
2376 ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME,
2377 strlen(param->hwname), param->hwname);
2378 if (ret < 0)
c449981c 2379 return ret;
62759361
JR		 2380 }
2381
c449981c 2382 return 0;
62759361
JR		 2383}
2384
c449981c 2385static void hwsim_mcast_new_radio(int id, struct genl_info *info,
62759361
JR		 2386 struct hwsim_new_radio_params *param)
2387{
2388 struct sk_buff *mcast_skb;
c449981c 2389 void *data;
62759361 2390
c449981c 2391 mcast_skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
62759361
JR		 2392 if (!mcast_skb)
2393 return;
2394
c449981c
PF		 2395 data = genlmsg_put(mcast_skb, 0, 0, &hwsim_genl_family, 0,
2396 HWSIM_CMD_NEW_RADIO);
2397 if (!data)
2398 goto out_err;
2399
2400 if (append_radio_msg(mcast_skb, id, param) < 0)
2401 goto out_err;
2402
2403 genlmsg_end(mcast_skb, data);
2404
62759361 2405 hwsim_mcast_config_msg(mcast_skb, info);
c449981c
PF		 2406 return;
2407
2408out_err:
2409 genlmsg_cancel(mcast_skb, data);
2410 nlmsg_free(mcast_skb);
62759361
JR		 2411}
2412
2413static int mac80211_hwsim_new_radio(struct genl_info *info,
2414 struct hwsim_new_radio_params *param)
acc1e7a3 2415{
de0421d5
JB		 2416 int err;
2417 u8 addr[ETH_ALEN];
e4afb603 2418 struct mac80211_hwsim_data *data;
de0421d5 2419 struct ieee80211_hw *hw;
57fbcce3 2420 enum nl80211_band band;
de0421d5 2421 const struct ieee80211_ops *ops = &mac80211_hwsim_ops;
100cb9ff 2422 struct net *net;
de0421d5 2423 int idx;
0e057d73 2424
62759361 2425 if (WARN_ON(param->channels > 1 && !param->use_chanctx))
361c3e04
LC		 2426 return -EINVAL;
2427
0e057d73 2428 spin_lock_bh(&hwsim_radio_lock);
de0421d5 2429 idx = hwsim_radio_idx++;
0e057d73
JB		 2430 spin_unlock_bh(&hwsim_radio_lock);
2431
62759361 2432 if (param->use_chanctx)
de0421d5 2433 ops = &mac80211_hwsim_mchan_ops;
62759361 2434 hw = ieee80211_alloc_hw_nm(sizeof(*data), ops, param->hwname);
de0421d5
JB		 2435 if (!hw) {
2436 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw failed\n");
2437 err = -ENOMEM;
2438 goto failed;
2439 }
100cb9ff
MW		 2440
2441 if (info)
2442 net = genl_info_net(info);
2443 else
2444 net = &init_net;
2445 wiphy_net_set(hw->wiphy, net);
2446
de0421d5
JB		 2447 data = hw->priv;
2448 data->hw = hw;
acc1e7a3 2449
de0421d5
JB		 2450 data->dev = device_create(hwsim_class, NULL, 0, hw, "hwsim%d", idx);
2451 if (IS_ERR(data->dev)) {
2452 printk(KERN_DEBUG
2453 "mac80211_hwsim: device_create failed (%ld)\n",
2454 PTR_ERR(data->dev));
2455 err = -ENOMEM;
2456 goto failed_drvdata;
2457 }
2458 data->dev->driver = &mac80211_hwsim_driver.driver;
2459 err = device_bind_driver(data->dev);
2460 if (err != 0) {
2461 printk(KERN_DEBUG "mac80211_hwsim: device_bind_driver failed (%d)\n",
2462 err);
805dbe17 2463 goto failed_bind;
acc1e7a3 2464 }
acc1e7a3 2465
de0421d5 2466 skb_queue_head_init(&data->pending);
acc1e7a3 2467
de0421d5 2468 SET_IEEE80211_DEV(hw, data->dev);
93803b33 2469 eth_zero_addr(addr);
de0421d5
JB		 2470 addr[0] = 0x02;
2471 addr[3] = idx >> 8;
2472 addr[4] = idx;
2473 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
2474 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
2475 data->addresses[1].addr[0] |= 0x40;
2476 hw->wiphy->n_addresses = 2;
2477 hw->wiphy->addresses = data->addresses;
fc6971d4 2478
62759361
JR		 2479 data->channels = param->channels;
2480 data->use_chanctx = param->use_chanctx;
bc791098 2481 data->idx = idx;
62759361
JR		 2482 data->destroy_on_close = param->destroy_on_close;
2483 if (info)
2484 data->portid = info->snd_portid;
fc6971d4 2485
361c3e04 2486 if (data->use_chanctx) {
de0421d5
JB		 2487 hw->wiphy->max_scan_ssids = 255;
2488 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
2489 hw->wiphy->max_remain_on_channel_duration = 1000;
2490 /* For channels > 1 DFS is not allowed */
2491 hw->wiphy->n_iface_combinations = 1;
2492 hw->wiphy->iface_combinations = &data->if_combination;
62759361 2493 if (param->p2p_device)
8c66a3d9
JB		 2494 data->if_combination = hwsim_if_comb_p2p_dev[0];
2495 else
2496 data->if_combination = hwsim_if_comb[0];
b59ec8dd 2497 data->if_combination.num_different_channels = data->channels;
62759361 2498 } else if (param->p2p_device) {
8c66a3d9
JB		 2499 hw->wiphy->iface_combinations = hwsim_if_comb_p2p_dev;
2500 hw->wiphy->n_iface_combinations =
2501 ARRAY_SIZE(hwsim_if_comb_p2p_dev);
de0421d5
JB		 2502 } else {
2503 hw->wiphy->iface_combinations = hwsim_if_comb;
2504 hw->wiphy->n_iface_combinations = ARRAY_SIZE(hwsim_if_comb);
2505 }
acc1e7a3 2506
661ef475 2507 INIT_DELAYED_WORK(&data->roc_start, hw_roc_start);
de0421d5
JB		 2508 INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
2509 INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
7882513b 2510
de0421d5
JB		 2511 hw->queues = 5;
2512 hw->offchannel_tx_hw_queue = 4;
2513 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2514 BIT(NL80211_IFTYPE_AP) |
2515 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2516 BIT(NL80211_IFTYPE_P2P_GO) |
2517 BIT(NL80211_IFTYPE_ADHOC) |
8c66a3d9
JB		 2518 BIT(NL80211_IFTYPE_MESH_POINT);
2519
62759361 2520 if (param->p2p_device)
8c66a3d9 2521 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_DEVICE);
fc6971d4 2522
30686bf7
JB		 2523 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
2524 ieee80211_hw_set(hw, CHANCTX_STA_CSA);
2525 ieee80211_hw_set(hw, SUPPORTS_HT_CCK_RATES);
2526 ieee80211_hw_set(hw, QUEUE_CONTROL);
2527 ieee80211_hw_set(hw, WANT_MONITOR_VIF);
2528 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
2529 ieee80211_hw_set(hw, MFP_CAPABLE);
2530 ieee80211_hw_set(hw, SIGNAL_DBM);
33c2f538 2531 ieee80211_hw_set(hw, TDLS_WIDER_BW);
de0421d5 2532 if (rctbl)
30686bf7 2533 ieee80211_hw_set(hw, SUPPORTS_RC_TABLE);
fc6971d4 2534
de0421d5
JB		 2535 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2536 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
0037db63
AO		 2537 WIPHY_FLAG_AP_UAPSD |
2538 WIPHY_FLAG_HAS_CHANNEL_SWITCH;
0d8614b4
EP		 2539 hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR |
2540 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
2541 NL80211_FEATURE_STATIC_SMPS |
339467b9
JB		 2542 NL80211_FEATURE_DYNAMIC_SMPS |
2543 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
00eeccc4 2544 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS);
fc6971d4 2545
de0421d5
JB		 2546 /* ask mac80211 to reserve space for magic */
2547 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
2548 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
2549 hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
fc6971d4 2550
de0421d5
JB		 2551 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
2552 sizeof(hwsim_channels_2ghz));
2553 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
2554 sizeof(hwsim_channels_5ghz));
2555 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
7882513b 2556
57fbcce3 2557 for (band = NL80211_BAND_2GHZ; band < NUM_NL80211_BANDS; band++) {
de0421d5
JB		 2558 struct ieee80211_supported_band *sband = &data->bands[band];
2559 switch (band) {
57fbcce3 2560 case NL80211_BAND_2GHZ:
de0421d5
JB		 2561 sband->channels = data->channels_2ghz;
2562 sband->n_channels = ARRAY_SIZE(hwsim_channels_2ghz);
2563 sband->bitrates = data->rates;
2564 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
2565 break;
57fbcce3 2566 case NL80211_BAND_5GHZ:
de0421d5
JB		 2567 sband->channels = data->channels_5ghz;
2568 sband->n_channels = ARRAY_SIZE(hwsim_channels_5ghz);
2569 sband->bitrates = data->rates + 4;
2570 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
f33f8483
IP		 2571
2572 sband->vht_cap.vht_supported = true;
2573 sband->vht_cap.cap =
2574 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
2575 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
2576 IEEE80211_VHT_CAP_RXLDPC |
2577 IEEE80211_VHT_CAP_SHORT_GI_80 |
2578 IEEE80211_VHT_CAP_SHORT_GI_160 |
2579 IEEE80211_VHT_CAP_TXSTBC |
2580 IEEE80211_VHT_CAP_RXSTBC_1 |
2581 IEEE80211_VHT_CAP_RXSTBC_2 |
2582 IEEE80211_VHT_CAP_RXSTBC_3 |
2583 IEEE80211_VHT_CAP_RXSTBC_4 |
2584 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
2585 sband->vht_cap.vht_mcs.rx_mcs_map =
8aca9b29
IP		 2586 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
2587 IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 |
f33f8483 2588 IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
8aca9b29
IP		 2589 IEEE80211_VHT_MCS_SUPPORT_0_9 << 6 |
2590 IEEE80211_VHT_MCS_SUPPORT_0_9 << 8 |
f33f8483
IP		 2591 IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
2592 IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
8aca9b29 2593 IEEE80211_VHT_MCS_SUPPORT_0_9 << 14);
f33f8483
IP		 2594 sband->vht_cap.vht_mcs.tx_mcs_map =
2595 sband->vht_cap.vht_mcs.rx_mcs_map;
de0421d5
JB		 2596 break;
2597 default:
2598 continue;
2599 }
acc1e7a3 2600
de0421d5
JB		 2601 sband->ht_cap.ht_supported = true;
2602 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
2603 IEEE80211_HT_CAP_GRN_FLD |
e49786db 2604 IEEE80211_HT_CAP_SGI_20 |
de0421d5
JB		 2605 IEEE80211_HT_CAP_SGI_40 |
2606 IEEE80211_HT_CAP_DSSSCCK40;
2607 sband->ht_cap.ampdu_factor = 0x3;
2608 sband->ht_cap.ampdu_density = 0x6;
2609 memset(&sband->ht_cap.mcs, 0,
2610 sizeof(sband->ht_cap.mcs));
2611 sband->ht_cap.mcs.rx_mask[0] = 0xff;
2612 sband->ht_cap.mcs.rx_mask[1] = 0xff;
2613 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
fc6971d4 2614
de0421d5 2615 hw->wiphy->bands[band] = sband;
de0421d5 2616 }
acc1e7a3 2617
de0421d5
JB		 2618 /* By default all radios belong to the first group */
2619 data->group = 1;
2620 mutex_init(&data->mutex);
fc6971d4 2621
100cb9ff
MW		 2622 data->netgroup = hwsim_net_get_netgroup(net);
2623
de0421d5
JB		 2624 /* Enable frame retransmissions for lossy channels */
2625 hw->max_rates = 4;
2626 hw->max_rate_tries = 11;
fc6971d4 2627
d5d011b4
JM		 2628 hw->wiphy->vendor_commands = mac80211_hwsim_vendor_commands;
2629 hw->wiphy->n_vendor_commands =
2630 ARRAY_SIZE(mac80211_hwsim_vendor_commands);
2631 hw->wiphy->vendor_events = mac80211_hwsim_vendor_events;
2632 hw->wiphy->n_vendor_events = ARRAY_SIZE(mac80211_hwsim_vendor_events);
2633
62759361 2634 if (param->reg_strict)
26b0e411 2635 hw->wiphy->regulatory_flags |= REGULATORY_STRICT_REG;
62759361 2636 if (param->regd) {
93d638d4 2637 data->regd = param->regd;
26b0e411 2638 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
62759361 2639 wiphy_apply_custom_regulatory(hw->wiphy, param->regd);
26b0e411
JB		 2640 /* give the regulatory workqueue a chance to run */
2641 schedule_timeout_interruptible(1);
2642 }
fc6971d4 2643
62759361 2644 if (param->no_vif)
30686bf7 2645 ieee80211_hw_set(hw, NO_AUTO_VIF);
9a0cb89a 2646
de0421d5
JB		 2647 err = ieee80211_register_hw(hw);
2648 if (err < 0) {
2649 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_register_hw failed (%d)\n",
2650 err);
2651 goto failed_hw;
2652 }
fc6971d4 2653
de0421d5 2654 wiphy_debug(hw->wiphy, "hwaddr %pM registered\n", hw->wiphy->perm_addr);
fc6971d4 2655
93d638d4
PF		 2656 if (param->reg_alpha2) {
2657 data->alpha2[0] = param->reg_alpha2[0];
2658 data->alpha2[1] = param->reg_alpha2[1];
62759361 2659 regulatory_hint(hw->wiphy, param->reg_alpha2);
93d638d4 2660 }
7882513b 2661
de0421d5
JB		 2662 data->debugfs = debugfs_create_dir("hwsim", hw->wiphy->debugfsdir);
2663 debugfs_create_file("ps", 0666, data->debugfs, data, &hwsim_fops_ps);
2664 debugfs_create_file("group", 0666, data->debugfs, data,
2665 &hwsim_fops_group);
361c3e04 2666 if (!data->use_chanctx)
de0421d5
JB		 2667 debugfs_create_file("dfs_simulate_radar", 0222,
2668 data->debugfs,
2669 data, &hwsim_simulate_radar);
fc6971d4 2670
de0421d5
JB		 2671 tasklet_hrtimer_init(&data->beacon_timer,
2672 mac80211_hwsim_beacon,
2673 CLOCK_MONOTONIC_RAW, HRTIMER_MODE_ABS);
fc6971d4 2674
de0421d5
JB		 2675 spin_lock_bh(&hwsim_radio_lock);
2676 list_add_tail(&data->list, &hwsim_radios);
2677 spin_unlock_bh(&hwsim_radio_lock);
fc6971d4 2678
62759361 2679 if (idx > 0)
c449981c 2680 hwsim_mcast_new_radio(idx, info, param);
62759361 2681
bc791098 2682 return idx;
fc6971d4 2683
de0421d5 2684failed_hw:
805dbe17
JM		 2685 device_release_driver(data->dev);
2686failed_bind:
de0421d5
JB		 2687 device_unregister(data->dev);
2688failed_drvdata:
2689 ieee80211_free_hw(hw);
2690failed:
2691 return err;
fc6971d4
JM		 2692}
2693
579a05f2
JR		 2694static void hwsim_mcast_del_radio(int id, const char *hwname,
2695 struct genl_info *info)
fc6971d4 2696{
579a05f2
JR		 2697 struct sk_buff *skb;
2698 void *data;
2699 int ret;
2700
2701 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
2702 if (!skb)
2703 return;
2704
2705 data = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
2706 HWSIM_CMD_DEL_RADIO);
2707 if (!data)
2708 goto error;
2709
2710 ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
2711 if (ret < 0)
2712 goto error;
2713
b9995f83
JR		 2714 ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME, strlen(hwname),
2715 hwname);
2716 if (ret < 0)
2717 goto error;
579a05f2
JR		 2718
2719 genlmsg_end(skb, data);
2720
2721 hwsim_mcast_config_msg(skb, info);
2722
2723 return;
2724
2725error:
2726 nlmsg_free(skb);
2727}
2728
2729static void mac80211_hwsim_del_radio(struct mac80211_hwsim_data *data,
2730 const char *hwname,
2731 struct genl_info *info)
2732{
2733 hwsim_mcast_del_radio(data->idx, hwname, info);
de0421d5
JB		 2734 debugfs_remove_recursive(data->debugfs);
2735 ieee80211_unregister_hw(data->hw);
2736 device_release_driver(data->dev);
2737 device_unregister(data->dev);
2738 ieee80211_free_hw(data->hw);
fc6971d4
JM		 2739}
2740
93d638d4
PF		 2741static int mac80211_hwsim_get_radio(struct sk_buff *skb,
2742 struct mac80211_hwsim_data *data,
2743 u32 portid, u32 seq,
2744 struct netlink_callback *cb, int flags)
2745{
2746 void *hdr;
2747 struct hwsim_new_radio_params param = { };
2748 int res = -EMSGSIZE;
2749
2750 hdr = genlmsg_put(skb, portid, seq, &hwsim_genl_family, flags,
2751 HWSIM_CMD_GET_RADIO);
2752 if (!hdr)
2753 return -EMSGSIZE;
2754
2755 if (cb)
2756 genl_dump_check_consistent(cb, hdr, &hwsim_genl_family);
2757
b0ad5e8b
PF		 2758 if (data->alpha2[0] && data->alpha2[1])
2759 param.reg_alpha2 = data->alpha2;
2760
93d638d4
PF		 2761 param.reg_strict = !!(data->hw->wiphy->regulatory_flags &
2762 REGULATORY_STRICT_REG);
2763 param.p2p_device = !!(data->hw->wiphy->interface_modes &
2764 BIT(NL80211_IFTYPE_P2P_DEVICE));
2765 param.use_chanctx = data->use_chanctx;
2766 param.regd = data->regd;
2767 param.channels = data->channels;
2768 param.hwname = wiphy_name(data->hw->wiphy);
2769
2770 res = append_radio_msg(skb, data->idx, &param);
2771 if (res < 0)
2772 goto out_err;
2773
053c095a
JB		 2774 genlmsg_end(skb, hdr);
2775 return 0;
93d638d4
PF		 2776
2777out_err:
2778 genlmsg_cancel(skb, hdr);
2779 return res;
2780}
2781
de0421d5 2782static void mac80211_hwsim_free(void)
fc6971d4 2783{
de0421d5 2784 struct mac80211_hwsim_data *data;
fc6971d4 2785
de0421d5
JB		 2786 spin_lock_bh(&hwsim_radio_lock);
2787 while ((data = list_first_entry_or_null(&hwsim_radios,
2788 struct mac80211_hwsim_data,
2789 list))) {
2790 list_del(&data->list);
2791 spin_unlock_bh(&hwsim_radio_lock);
b9995f83
JR		 2792 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
2793 NULL);
de0421d5 2794 spin_lock_bh(&hwsim_radio_lock);
fc6971d4 2795 }
de0421d5
JB		 2796 spin_unlock_bh(&hwsim_radio_lock);
2797 class_destroy(hwsim_class);
bba05e3d
JD		 2798}
2799
de0421d5
JB		 2800static const struct net_device_ops hwsim_netdev_ops = {
2801 .ndo_start_xmit = hwsim_mon_xmit,
2802 .ndo_change_mtu = eth_change_mtu,
2803 .ndo_set_mac_address = eth_mac_addr,
2804 .ndo_validate_addr = eth_validate_addr,
2805};
73606d00 2806
de0421d5 2807static void hwsim_mon_setup(struct net_device *dev)
73606d00 2808{
de0421d5
JB		 2809 dev->netdev_ops = &hwsim_netdev_ops;
2810 dev->destructor = free_netdev;
2811 ether_setup(dev);
3db6da1f 2812 dev->priv_flags |= IFF_NO_QUEUE;
de0421d5 2813 dev->type = ARPHRD_IEEE80211_RADIOTAP;
93803b33 2814 eth_zero_addr(dev->dev_addr);
de0421d5 2815 dev->dev_addr[0] = 0x12;
73606d00
DW		 2816}
2817
9ddd12af 2818static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(const u8 *addr)
7882513b
JL		 2819{
2820 struct mac80211_hwsim_data *data;
2821 bool _found = false;
2822
2823 spin_lock_bh(&hwsim_radio_lock);
2824 list_for_each_entry(data, &hwsim_radios, list) {
354210f8 2825 if (memcmp(data->addresses[1].addr, addr, ETH_ALEN) == 0) {
7882513b
JL		 2826 _found = true;
2827 break;
2828 }
2829 }
2830 spin_unlock_bh(&hwsim_radio_lock);
2831
2832 if (!_found)
2833 return NULL;
2834
2835 return data;
2836}
2837
f21e4d8e
MW		 2838static void hwsim_register_wmediumd(struct net *net, u32 portid)
2839{
2840 struct mac80211_hwsim_data *data;
2841
2842 hwsim_net_set_wmediumd(net, portid);
2843
2844 spin_lock_bh(&hwsim_radio_lock);
2845 list_for_each_entry(data, &hwsim_radios, list) {
2846 if (data->netgroup == hwsim_net_get_netgroup(net))
2847 data->wmediumd = portid;
2848 }
2849 spin_unlock_bh(&hwsim_radio_lock);
2850}
2851
7882513b
JL		 2852static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
2853 struct genl_info *info)
2854{
2855
2856 struct ieee80211_hdr *hdr;
2857 struct mac80211_hwsim_data *data2;
2858 struct ieee80211_tx_info *txi;
2859 struct hwsim_tx_rate *tx_attempts;
959eb2fd 2860 u64 ret_skb_cookie;
7882513b 2861 struct sk_buff *skb, *tmp;
9ddd12af 2862 const u8 *src;
7882513b 2863 unsigned int hwsim_flags;
7882513b
JL		 2864 int i;
2865 bool found = false;
2866
2867 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
9ddd12af
JB		 2868 !info->attrs[HWSIM_ATTR_FLAGS] ||
2869 !info->attrs[HWSIM_ATTR_COOKIE] ||
62397da5 2870 !info->attrs[HWSIM_ATTR_SIGNAL] ||
9ddd12af 2871 !info->attrs[HWSIM_ATTR_TX_INFO])
7882513b
JL		 2872 goto out;
2873
9ddd12af 2874 src = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
7882513b 2875 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
959eb2fd 2876 ret_skb_cookie = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
7882513b
JL		 2877
2878 data2 = get_hwsim_data_ref_from_addr(src);
9ddd12af 2879 if (!data2)
7882513b
JL		 2880 goto out;
2881
f21e4d8e
MW		 2882 if (hwsim_net_get_netgroup(genl_info_net(info)) != data2->netgroup)
2883 goto out;
2884
2885 if (info->snd_portid != data2->wmediumd)
2886 goto out;
2887
7882513b
JL		 2888 /* look for the skb matching the cookie passed back from user */
2889 skb_queue_walk_safe(&data2->pending, skb, tmp) {
959eb2fd
JB		 2890 u64 skb_cookie;
2891
2892 txi = IEEE80211_SKB_CB(skb);
2893 skb_cookie = (u64)(uintptr_t)txi->rate_driver_data[0];
2894
2895 if (skb_cookie == ret_skb_cookie) {
7882513b
JL		 2896 skb_unlink(skb, &data2->pending);
2897 found = true;
2898 break;
2899 }
2900 }
2901
2902 /* not found */
2903 if (!found)
2904 goto out;
2905
2906 /* Tx info received because the frame was broadcasted on user space,
2907 so we get all the necessary info: tx attempts and skb control buff */
2908
2909 tx_attempts = (struct hwsim_tx_rate *)nla_data(
2910 info->attrs[HWSIM_ATTR_TX_INFO]);
2911
2912 /* now send back TX status */
2913 txi = IEEE80211_SKB_CB(skb);
2914
7882513b
JL		 2915 ieee80211_tx_info_clear_status(txi);
2916
2917 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
2918 txi->status.rates[i].idx = tx_attempts[i].idx;
2919 txi->status.rates[i].count = tx_attempts[i].count;
2920 /*txi->status.rates[i].flags = 0;*/
2921 }
2922
2923 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
2924
2925 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
2926 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
2927 if (skb->len >= 16) {
2928 hdr = (struct ieee80211_hdr *) skb->data;
c0e30763 2929 mac80211_hwsim_monitor_ack(data2->channel,
e8261171 2930 hdr->addr2);
7882513b 2931 }
06cf5c4c 2932 txi->flags |= IEEE80211_TX_STAT_ACK;
7882513b
JL		 2933 }
2934 ieee80211_tx_status_irqsafe(data2->hw, skb);
2935 return 0;
2936out:
2937 return -EINVAL;
2938
2939}
2940
2941static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
2942 struct genl_info *info)
2943{
e8261171 2944 struct mac80211_hwsim_data *data2;
7882513b 2945 struct ieee80211_rx_status rx_status;
9ddd12af 2946 const u8 *dst;
7882513b 2947 int frame_data_len;
9ddd12af 2948 void *frame_data;
7882513b
JL		 2949 struct sk_buff *skb = NULL;
2950
2951 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
e8261171
JB		 2952 !info->attrs[HWSIM_ATTR_FRAME] ||
2953 !info->attrs[HWSIM_ATTR_RX_RATE] ||
2954 !info->attrs[HWSIM_ATTR_SIGNAL])
7882513b
JL		 2955 goto out;
2956
9ddd12af 2957 dst = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
7882513b 2958 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
9ddd12af 2959 frame_data = (void *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
7882513b
JL		 2960
2961 /* Allocate new skb here */
2962 skb = alloc_skb(frame_data_len, GFP_KERNEL);
2963 if (skb == NULL)
2964 goto err;
2965
9ddd12af 2966 if (frame_data_len > IEEE80211_MAX_DATA_LEN)
7882513b
JL		 2967 goto err;
2968
9ddd12af
JB		 2969 /* Copy the data */
2970 memcpy(skb_put(skb, frame_data_len), frame_data, frame_data_len);
7882513b 2971
9ddd12af
JB		 2972 data2 = get_hwsim_data_ref_from_addr(dst);
2973 if (!data2)
7882513b
JL		 2974 goto out;
2975
f21e4d8e
MW		 2976 if (hwsim_net_get_netgroup(genl_info_net(info)) != data2->netgroup)
2977 goto out;
2978
2979 if (info->snd_portid != data2->wmediumd)
2980 goto out;
2981
7882513b
JL		 2982 /* check if radio is configured properly */
2983
e8261171 2984 if (data2->idle || !data2->started)
7882513b
JL		 2985 goto out;
2986
9ddd12af 2987 /* A frame is received from user space */
7882513b 2988 memset(&rx_status, 0, sizeof(rx_status));
641cf2a5
AW		 2989 if (info->attrs[HWSIM_ATTR_FREQ]) {
2990 /* throw away off-channel packets, but allow both the temporary
2991 * ("hw" scan/remain-on-channel) and regular channel, since the
2992 * internal datapath also allows this
2993 */
2994 mutex_lock(&data2->mutex);
2995 rx_status.freq = nla_get_u32(info->attrs[HWSIM_ATTR_FREQ]);
2996
2997 if (rx_status.freq != data2->channel->center_freq &&
2998 (!data2->tmp_chan ||
2999 rx_status.freq != data2->tmp_chan->center_freq)) {
3000 mutex_unlock(&data2->mutex);
3001 goto out;
3002 }
3003 mutex_unlock(&data2->mutex);
3004 } else {
3005 rx_status.freq = data2->channel->center_freq;
3006 }
3007
7882513b
JL		 3008 rx_status.band = data2->channel->band;
3009 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
3010 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
3011
3012 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
2155c3f8
BG		 3013 data2->rx_pkts++;
3014 data2->rx_bytes += skb->len;
7882513b
JL		 3015 ieee80211_rx_irqsafe(data2->hw, skb);
3016
3017 return 0;
3018err:
c393862f 3019 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 3020out:
3021 dev_kfree_skb(skb);
3022 return -EINVAL;
3023}
3024
3025static int hwsim_register_received_nl(struct sk_buff *skb_2,
3026 struct genl_info *info)
3027{
f21e4d8e 3028 struct net *net = genl_info_net(info);
c5ac0854
JB		 3029 struct mac80211_hwsim_data *data;
3030 int chans = 1;
3031
3032 spin_lock_bh(&hwsim_radio_lock);
3033 list_for_each_entry(data, &hwsim_radios, list)
3034 chans = max(chans, data->channels);
3035 spin_unlock_bh(&hwsim_radio_lock);
3036
3037 /* In the future we should revise the userspace API and allow it
3038 * to set a flag that it does support multi-channel, then we can
3039 * let this pass conditionally on the flag.
3040 * For current userspace, prohibit it since it won't work right.
3041 */
3042 if (chans > 1)
3043 return -EOPNOTSUPP;
3044
f21e4d8e 3045 if (hwsim_net_get_wmediumd(net))
85ca8fc7 3046 return -EBUSY;
7882513b 3047
f21e4d8e 3048 hwsim_register_wmediumd(net, info->snd_portid);
7882513b
JL		 3049
3050 printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
15e47304 3051 "switching to wmediumd mode with pid %d\n", info->snd_portid);
7882513b
JL		 3052
3053 return 0;
7882513b
JL		 3054}
3055
62759361 3056static int hwsim_new_radio_nl(struct sk_buff *msg, struct genl_info *info)
bc791098 3057{
62759361
JR		 3058 struct hwsim_new_radio_params param = { 0 };
3059
3060 param.reg_strict = info->attrs[HWSIM_ATTR_REG_STRICT_REG];
3061 param.p2p_device = info->attrs[HWSIM_ATTR_SUPPORT_P2P_DEVICE];
3062 param.channels = channels;
3063 param.destroy_on_close =
3064 info->attrs[HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE];
bc791098
JB		 3065
3066 if (info->attrs[HWSIM_ATTR_CHANNELS])
62759361 3067 param.channels = nla_get_u32(info->attrs[HWSIM_ATTR_CHANNELS]);
bc791098 3068
9a0cb89a 3069 if (info->attrs[HWSIM_ATTR_NO_VIF])
62759361 3070 param.no_vif = true;
9a0cb89a 3071
5cd8926b 3072 if (info->attrs[HWSIM_ATTR_RADIO_NAME])
62759361 3073 param.hwname = nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]);
5cd8926b 3074
361c3e04 3075 if (info->attrs[HWSIM_ATTR_USE_CHANCTX])
62759361 3076 param.use_chanctx = true;
361c3e04 3077 else
62759361 3078 param.use_chanctx = (param.channels > 1);
361c3e04 3079
26b0e411 3080 if (info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2])
62759361
JR		 3081 param.reg_alpha2 =
3082 nla_data(info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2]);
26b0e411
JB		 3083
3084 if (info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]) {
3085 u32 idx = nla_get_u32(info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]);
3086
3087 if (idx >= ARRAY_SIZE(hwsim_world_regdom_custom))
3088 return -EINVAL;
62759361 3089 param.regd = hwsim_world_regdom_custom[idx];
26b0e411
JB		 3090 }
3091
62759361 3092 return mac80211_hwsim_new_radio(info, &param);
bc791098
JB		 3093}
3094
579a05f2 3095static int hwsim_del_radio_nl(struct sk_buff *msg, struct genl_info *info)
bc791098
JB		 3096{
3097 struct mac80211_hwsim_data *data;
8cdd9e1c
BG		 3098 s64 idx = -1;
3099 const char *hwname = NULL;
bc791098 3100
8cdd9e1c
BG		 3101 if (info->attrs[HWSIM_ATTR_RADIO_ID])
3102 idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
3103 else if (info->attrs[HWSIM_ATTR_RADIO_NAME])
3104 hwname = (void *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]);
3105 else
bc791098 3106 return -EINVAL;
bc791098
JB		 3107
3108 spin_lock_bh(&hwsim_radio_lock);
3109 list_for_each_entry(data, &hwsim_radios, list) {
8cdd9e1c
BG		 3110 if (idx >= 0) {
3111 if (data->idx != idx)
3112 continue;
3113 } else {
6b67e01f 3114 if (strcmp(hwname, wiphy_name(data->hw->wiphy)))
8cdd9e1c
BG		 3115 continue;
3116 }
3117
100cb9ff
MW		 3118 if (!net_eq(wiphy_net(data->hw->wiphy), genl_info_net(info)))
3119 continue;
3120
bc791098
JB		 3121 list_del(&data->list);
3122 spin_unlock_bh(&hwsim_radio_lock);
b9995f83
JR		 3123 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
3124 info);
bc791098
JB		 3125 return 0;
3126 }
3127 spin_unlock_bh(&hwsim_radio_lock);
3128
3129 return -ENODEV;
7882513b
JL		 3130}
3131
93d638d4
PF		 3132static int hwsim_get_radio_nl(struct sk_buff *msg, struct genl_info *info)
3133{
3134 struct mac80211_hwsim_data *data;
3135 struct sk_buff *skb;
3136 int idx, res = -ENODEV;
3137
3138 if (!info->attrs[HWSIM_ATTR_RADIO_ID])
3139 return -EINVAL;
3140 idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
3141
3142 spin_lock_bh(&hwsim_radio_lock);
3143 list_for_each_entry(data, &hwsim_radios, list) {
3144 if (data->idx != idx)
3145 continue;
3146
100cb9ff
MW		 3147 if (!net_eq(wiphy_net(data->hw->wiphy), genl_info_net(info)))
3148 continue;
3149
93d638d4
PF		 3150 skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3151 if (!skb) {
3152 res = -ENOMEM;
3153 goto out_err;
3154 }
3155
3156 res = mac80211_hwsim_get_radio(skb, data, info->snd_portid,
3157 info->snd_seq, NULL, 0);
3158 if (res < 0) {
3159 nlmsg_free(skb);
3160 goto out_err;
3161 }
3162
3163 genlmsg_reply(skb, info);
3164 break;
3165 }
3166
3167out_err:
3168 spin_unlock_bh(&hwsim_radio_lock);
3169
3170 return res;
3171}
3172
3173static int hwsim_dump_radio_nl(struct sk_buff *skb,
3174 struct netlink_callback *cb)
3175{
3176 int idx = cb->args[0];
3177 struct mac80211_hwsim_data *data = NULL;
3178 int res;
3179
3180 spin_lock_bh(&hwsim_radio_lock);
3181
3182 if (idx == hwsim_radio_idx)
3183 goto done;
3184
3185 list_for_each_entry(data, &hwsim_radios, list) {
3186 if (data->idx < idx)
3187 continue;
3188
100cb9ff
MW		 3189 if (!net_eq(wiphy_net(data->hw->wiphy), sock_net(skb->sk)))
3190 continue;
3191
93d638d4
PF		 3192 res = mac80211_hwsim_get_radio(skb, data,
3193 NETLINK_CB(cb->skb).portid,
3194 cb->nlh->nlmsg_seq, cb,
3195 NLM_F_MULTI);
3196 if (res < 0)
3197 break;
3198
3199 idx = data->idx + 1;
3200 }
3201
3202 cb->args[0] = idx;
3203
3204done:
3205 spin_unlock_bh(&hwsim_radio_lock);
3206 return skb->len;
3207}
3208
7882513b 3209/* Generic Netlink operations array */
4534de83 3210static const struct genl_ops hwsim_ops[] = {
7882513b
JL		 3211 {
3212 .cmd = HWSIM_CMD_REGISTER,
3213 .policy = hwsim_genl_policy,
3214 .doit = hwsim_register_received_nl,
f21e4d8e 3215 .flags = GENL_UNS_ADMIN_PERM,
7882513b
JL		 3216 },
3217 {
3218 .cmd = HWSIM_CMD_FRAME,
3219 .policy = hwsim_genl_policy,
3220 .doit = hwsim_cloned_frame_received_nl,
3221 },
3222 {
3223 .cmd = HWSIM_CMD_TX_INFO_FRAME,
3224 .policy = hwsim_genl_policy,
3225 .doit = hwsim_tx_info_frame_received_nl,
3226 },
bc791098 3227 {
62759361 3228 .cmd = HWSIM_CMD_NEW_RADIO,
bc791098 3229 .policy = hwsim_genl_policy,
62759361 3230 .doit = hwsim_new_radio_nl,
100cb9ff 3231 .flags = GENL_UNS_ADMIN_PERM,
bc791098
JB		 3232 },
3233 {
579a05f2 3234 .cmd = HWSIM_CMD_DEL_RADIO,
bc791098 3235 .policy = hwsim_genl_policy,
579a05f2 3236 .doit = hwsim_del_radio_nl,
100cb9ff 3237 .flags = GENL_UNS_ADMIN_PERM,
bc791098 3238 },
93d638d4
PF		 3239 {
3240 .cmd = HWSIM_CMD_GET_RADIO,
3241 .policy = hwsim_genl_policy,
3242 .doit = hwsim_get_radio_nl,
3243 .dumpit = hwsim_dump_radio_nl,
3244 },
7882513b
JL		 3245};
3246
e9ed49bf
JR		 3247static void destroy_radio(struct work_struct *work)
3248{
3249 struct mac80211_hwsim_data *data =
3250 container_of(work, struct mac80211_hwsim_data, destroy_work);
3251
b9995f83 3252 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy), NULL);
e9ed49bf
JR		 3253}
3254
3255static void remove_user_radios(u32 portid)
3256{
3257 struct mac80211_hwsim_data *entry, *tmp;
3258
3259 spin_lock_bh(&hwsim_radio_lock);
3260 list_for_each_entry_safe(entry, tmp, &hwsim_radios, list) {
3261 if (entry->destroy_on_close && entry->portid == portid) {
3262 list_del(&entry->list);
3263 INIT_WORK(&entry->destroy_work, destroy_radio);
3264 schedule_work(&entry->destroy_work);
3265 }
3266 }
3267 spin_unlock_bh(&hwsim_radio_lock);
3268}
3269
7882513b
JL		 3270static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
3271 unsigned long state,
3272 void *_notify)
3273{
3274 struct netlink_notify *notify = _notify;
3275
3276 if (state != NETLINK_URELEASE)
3277 return NOTIFY_DONE;
3278
e9ed49bf
JR		 3279 remove_user_radios(notify->portid);
3280
f21e4d8e 3281 if (notify->portid == hwsim_net_get_wmediumd(notify->net)) {
7882513b
JL		 3282 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
3283 " socket, switching to perfect channel medium\n");
f21e4d8e 3284 hwsim_register_wmediumd(notify->net, 0);
7882513b
JL		 3285 }
3286 return NOTIFY_DONE;
3287
3288}
3289
3290static struct notifier_block hwsim_netlink_notifier = {
3291 .notifier_call = mac80211_hwsim_netlink_notify,
3292};
3293
3294static int hwsim_init_netlink(void)
3295{
3296 int rc;
e8261171 3297
7882513b
JL		 3298 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
3299
62759361
JR		 3300 rc = genl_register_family_with_ops_groups(&hwsim_genl_family,
3301 hwsim_ops,
3302 hwsim_mcgrps);
7882513b
JL		 3303 if (rc)
3304 goto failure;
3305
3306 rc = netlink_register_notifier(&hwsim_netlink_notifier);
2459cd87
SKY		 3307 if (rc) {
3308 genl_unregister_family(&hwsim_genl_family);
7882513b 3309 goto failure;
2459cd87 3310 }
7882513b
JL		 3311
3312 return 0;
3313
3314failure:
c393862f 3315 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 3316 return -EINVAL;
3317}
3318
100cb9ff
MW		 3319static __net_init int hwsim_init_net(struct net *net)
3320{
3321 hwsim_net_set_netgroup(net);
3322
3323 return 0;
3324}
3325
3326static void __net_exit hwsim_exit_net(struct net *net)
3327{
3328 struct mac80211_hwsim_data *data, *tmp;
3329
3330 spin_lock_bh(&hwsim_radio_lock);
3331 list_for_each_entry_safe(data, tmp, &hwsim_radios, list) {
3332 if (!net_eq(wiphy_net(data->hw->wiphy), net))
3333 continue;
3334
3335 /* Radios created in init_net are returned to init_net. */
3336 if (data->netgroup == hwsim_net_get_netgroup(&init_net))
3337 continue;
3338
3339 list_del(&data->list);
3340 INIT_WORK(&data->destroy_work, destroy_radio);
3341 schedule_work(&data->destroy_work);
3342 }
3343 spin_unlock_bh(&hwsim_radio_lock);
3344}
3345
3346static struct pernet_operations hwsim_net_ops = {
3347 .init = hwsim_init_net,
3348 .exit = hwsim_exit_net,
3349 .id = &hwsim_net_id,
3350 .size = sizeof(struct hwsim_net),
3351};
3352
7882513b
JL		 3353static void hwsim_exit_netlink(void)
3354{
7882513b
JL		 3355 /* unregister the notifier */
3356 netlink_unregister_notifier(&hwsim_netlink_notifier);
3357 /* unregister the family */
cf7a6b2d 3358 genl_unregister_family(&hwsim_genl_family);
7882513b
JL		 3359}
3360
acc1e7a3
JM		 3361static int __init init_mac80211_hwsim(void)
3362{
f39c2bfa 3363 int i, err;
acc1e7a3 3364
bc791098 3365 if (radios < 0 || radios > 100)
acc1e7a3
JM		 3366 return -EINVAL;
3367
e8261171
JB		 3368 if (channels < 1)
3369 return -EINVAL;
3370
38ed5048
JB		 3371 mac80211_hwsim_mchan_ops = mac80211_hwsim_ops;
3372 mac80211_hwsim_mchan_ops.hw_scan = mac80211_hwsim_hw_scan;
3373 mac80211_hwsim_mchan_ops.cancel_hw_scan = mac80211_hwsim_cancel_hw_scan;
3374 mac80211_hwsim_mchan_ops.sw_scan_start = NULL;
3375 mac80211_hwsim_mchan_ops.sw_scan_complete = NULL;
3376 mac80211_hwsim_mchan_ops.remain_on_channel = mac80211_hwsim_roc;
3377 mac80211_hwsim_mchan_ops.cancel_remain_on_channel = mac80211_hwsim_croc;
3378 mac80211_hwsim_mchan_ops.add_chanctx = mac80211_hwsim_add_chanctx;
3379 mac80211_hwsim_mchan_ops.remove_chanctx = mac80211_hwsim_remove_chanctx;
3380 mac80211_hwsim_mchan_ops.change_chanctx = mac80211_hwsim_change_chanctx;
3381 mac80211_hwsim_mchan_ops.assign_vif_chanctx =
3382 mac80211_hwsim_assign_vif_chanctx;
3383 mac80211_hwsim_mchan_ops.unassign_vif_chanctx =
3384 mac80211_hwsim_unassign_vif_chanctx;
69068036 3385
0e057d73
JB		 3386 spin_lock_init(&hwsim_radio_lock);
3387 INIT_LIST_HEAD(&hwsim_radios);
acc1e7a3 3388
100cb9ff 3389 err = register_pernet_device(&hwsim_net_ops);
9ea92774
MP		 3390 if (err)
3391 return err;
3392
100cb9ff
MW		 3393 err = platform_driver_register(&mac80211_hwsim_driver);
3394 if (err)
3395 goto out_unregister_pernet;
3396
acc1e7a3 3397 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
9ea92774
MP		 3398 if (IS_ERR(hwsim_class)) {
3399 err = PTR_ERR(hwsim_class);
f39c2bfa 3400 goto out_unregister_driver;
9ea92774 3401 }
acc1e7a3 3402
62759361
JR		 3403 err = hwsim_init_netlink();
3404 if (err < 0)
3405 goto out_unregister_driver;
3406
0e057d73 3407 for (i = 0; i < radios; i++) {
62759361
JR		 3408 struct hwsim_new_radio_params param = { 0 };
3409
3410 param.channels = channels;
acc1e7a3 3411
4a5af9c2 3412 switch (regtest) {
4a5af9c2 3413 case HWSIM_REGTEST_DIFF_COUNTRY:
26b0e411 3414 if (i < ARRAY_SIZE(hwsim_alpha2s))
62759361 3415 param.reg_alpha2 = hwsim_alpha2s[i];
4a5af9c2
LR		 3416 break;
3417 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
3418 if (!i)
62759361 3419 param.reg_alpha2 = hwsim_alpha2s[0];
4a5af9c2 3420 break;
4a5af9c2 3421 case HWSIM_REGTEST_STRICT_ALL:
62759361 3422 param.reg_strict = true;
26b0e411 3423 case HWSIM_REGTEST_DRIVER_REG_ALL:
62759361 3424 param.reg_alpha2 = hwsim_alpha2s[0];
4a5af9c2 3425 break;
26b0e411
JB		 3426 case HWSIM_REGTEST_WORLD_ROAM:
3427 if (i == 0)
62759361 3428 param.regd = &hwsim_world_regdom_custom_01;
4a5af9c2
LR		 3429 break;
3430 case HWSIM_REGTEST_CUSTOM_WORLD:
62759361 3431 param.regd = &hwsim_world_regdom_custom_01;
26b0e411 3432 break;
4a5af9c2 3433 case HWSIM_REGTEST_CUSTOM_WORLD_2:
26b0e411 3434 if (i == 0)
62759361 3435 param.regd = &hwsim_world_regdom_custom_01;
26b0e411 3436 else if (i == 1)
62759361 3437 param.regd = &hwsim_world_regdom_custom_02;
4a5af9c2
LR		 3438 break;
3439 case HWSIM_REGTEST_STRICT_FOLLOW:
26b0e411 3440 if (i == 0) {
62759361
JR		 3441 param.reg_strict = true;
3442 param.reg_alpha2 = hwsim_alpha2s[0];
26b0e411 3443 }
4a5af9c2
LR		 3444 break;
3445 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
26b0e411 3446 if (i == 0) {
62759361
JR		 3447 param.reg_strict = true;
3448 param.reg_alpha2 = hwsim_alpha2s[0];
26b0e411 3449 } else if (i == 1) {
62759361 3450 param.reg_alpha2 = hwsim_alpha2s[1];
26b0e411 3451 }
4a5af9c2
LR		 3452 break;
3453 case HWSIM_REGTEST_ALL:
26b0e411
JB		 3454 switch (i) {
3455 case 0:
62759361 3456 param.regd = &hwsim_world_regdom_custom_01;
26b0e411
JB		 3457 break;
3458 case 1:
62759361 3459 param.regd = &hwsim_world_regdom_custom_02;
26b0e411
JB		 3460 break;
3461 case 2:
62759361 3462 param.reg_alpha2 = hwsim_alpha2s[0];
26b0e411
JB		 3463 break;
3464 case 3:
62759361 3465 param.reg_alpha2 = hwsim_alpha2s[1];
26b0e411
JB		 3466 break;
3467 case 4:
62759361
JR		 3468 param.reg_strict = true;
3469 param.reg_alpha2 = hwsim_alpha2s[2];
26b0e411
JB		 3470 break;
3471 }
4a5af9c2
LR		 3472 break;
3473 default:
3474 break;
3475 }
3476
62759361
JR		 3477 param.p2p_device = support_p2p_device;
3478 param.use_chanctx = channels > 1;
3479
3480 err = mac80211_hwsim_new_radio(NULL, &param);
bc791098 3481 if (err < 0)
f39c2bfa 3482 goto out_free_radios;
acc1e7a3
JM		 3483 }
3484
c835a677
TG		 3485 hwsim_mon = alloc_netdev(0, "hwsim%d", NET_NAME_UNKNOWN,
3486 hwsim_mon_setup);
bcdd8220
WY		 3487 if (hwsim_mon == NULL) {
3488 err = -ENOMEM;
f39c2bfa 3489 goto out_free_radios;
bcdd8220 3490 }
acc1e7a3 3491
7882513b 3492 rtnl_lock();
7882513b 3493 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
f39c2bfa
JB		 3494 if (err < 0) {
3495 rtnl_unlock();
3496 goto out_free_radios;
3497 }
7882513b
JL		 3498
3499 err = register_netdevice(hwsim_mon);
f39c2bfa
JB		 3500 if (err < 0) {
3501 rtnl_unlock();
3502 goto out_free_mon;
3503 }
7882513b
JL		 3504 rtnl_unlock();
3505
acc1e7a3
JM		 3506 return 0;
3507
f39c2bfa 3508out_free_mon:
acc1e7a3 3509 free_netdev(hwsim_mon);
f39c2bfa 3510out_free_radios:
3a33cc10 3511 mac80211_hwsim_free();
f39c2bfa 3512out_unregister_driver:
c07fe5ae 3513 platform_driver_unregister(&mac80211_hwsim_driver);
100cb9ff
MW		 3514out_unregister_pernet:
3515 unregister_pernet_device(&hwsim_net_ops);
acc1e7a3
JM		 3516 return err;
3517}
f8fffc7e 3518module_init(init_mac80211_hwsim);
acc1e7a3
JM		 3519
3520static void __exit exit_mac80211_hwsim(void)
3521{
0e057d73 3522 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
acc1e7a3 3523
7882513b
JL		 3524 hwsim_exit_netlink();
3525
acc1e7a3 3526 mac80211_hwsim_free();
5d416351 3527 unregister_netdev(hwsim_mon);
c07fe5ae 3528 platform_driver_unregister(&mac80211_hwsim_driver);
100cb9ff 3529 unregister_pernet_device(&hwsim_net_ops);
acc1e7a3 3530}
acc1e7a3 3531module_exit(exit_mac80211_hwsim);
Linux 6.x block layer and io_uring tree(s)