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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
[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
c7d03a00 253static unsigned int hwsim_net_id;
100cb9ff
MW		 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 */
85bbd803 353 CHAN5G(5845), /* Channel 169 */
acc1e7a3
JM		 354};
355
356static const struct ieee80211_rate hwsim_rates[] = {
357 { .bitrate = 10 },
358 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
359 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
360 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
361 { .bitrate = 60 },
362 { .bitrate = 90 },
363 { .bitrate = 120 },
364 { .bitrate = 180 },
365 { .bitrate = 240 },
366 { .bitrate = 360 },
367 { .bitrate = 480 },
368 { .bitrate = 540 }
369};
370
d5d011b4
JM		 371#define OUI_QCA 0x001374
372#define QCA_NL80211_SUBCMD_TEST 1
373enum qca_nl80211_vendor_subcmds {
374 QCA_WLAN_VENDOR_ATTR_TEST = 8,
375 QCA_WLAN_VENDOR_ATTR_MAX = QCA_WLAN_VENDOR_ATTR_TEST
376};
377
378static const struct nla_policy
379hwsim_vendor_test_policy[QCA_WLAN_VENDOR_ATTR_MAX + 1] = {
380 [QCA_WLAN_VENDOR_ATTR_MAX] = { .type = NLA_U32 },
381};
382
383static int mac80211_hwsim_vendor_cmd_test(struct wiphy *wiphy,
384 struct wireless_dev *wdev,
385 const void *data, int data_len)
386{
387 struct sk_buff *skb;
388 struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_MAX + 1];
389 int err;
390 u32 val;
391
392 err = nla_parse(tb, QCA_WLAN_VENDOR_ATTR_MAX, data, data_len,
fceb6435 393 hwsim_vendor_test_policy, NULL);
d5d011b4
JM		 394 if (err)
395 return err;
396 if (!tb[QCA_WLAN_VENDOR_ATTR_TEST])
397 return -EINVAL;
398 val = nla_get_u32(tb[QCA_WLAN_VENDOR_ATTR_TEST]);
399 wiphy_debug(wiphy, "%s: test=%u\n", __func__, val);
400
401 /* Send a vendor event as a test. Note that this would not normally be
402 * done within a command handler, but rather, based on some other
403 * trigger. For simplicity, this command is used to trigger the event
404 * here.
405 *
406 * event_idx = 0 (index in mac80211_hwsim_vendor_commands)
407 */
408 skb = cfg80211_vendor_event_alloc(wiphy, wdev, 100, 0, GFP_KERNEL);
409 if (skb) {
410 /* skb_put() or nla_put() will fill up data within
411 * NL80211_ATTR_VENDOR_DATA.
412 */
413
414 /* Add vendor data */
415 nla_put_u32(skb, QCA_WLAN_VENDOR_ATTR_TEST, val + 1);
416
417 /* Send the event - this will call nla_nest_end() */
418 cfg80211_vendor_event(skb, GFP_KERNEL);
419 }
420
421 /* Send a response to the command */
422 skb = cfg80211_vendor_cmd_alloc_reply_skb(wiphy, 10);
423 if (!skb)
424 return -ENOMEM;
425
426 /* skb_put() or nla_put() will fill up data within
427 * NL80211_ATTR_VENDOR_DATA
428 */
429 nla_put_u32(skb, QCA_WLAN_VENDOR_ATTR_TEST, val + 2);
430
431 return cfg80211_vendor_cmd_reply(skb);
432}
433
434static struct wiphy_vendor_command mac80211_hwsim_vendor_commands[] = {
435 {
436 .info = { .vendor_id = OUI_QCA,
437 .subcmd = QCA_NL80211_SUBCMD_TEST },
438 .flags = WIPHY_VENDOR_CMD_NEED_NETDEV,
439 .doit = mac80211_hwsim_vendor_cmd_test,
440 }
441};
442
443/* Advertise support vendor specific events */
444static const struct nl80211_vendor_cmd_info mac80211_hwsim_vendor_events[] = {
445 { .vendor_id = OUI_QCA, .subcmd = 1 },
446};
447
de0421d5
JB		 448static const struct ieee80211_iface_limit hwsim_if_limits[] = {
449 { .max = 1, .types = BIT(NL80211_IFTYPE_ADHOC) },
450 { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) |
451 BIT(NL80211_IFTYPE_P2P_CLIENT) |
452#ifdef CONFIG_MAC80211_MESH
453 BIT(NL80211_IFTYPE_MESH_POINT) |
454#endif
455 BIT(NL80211_IFTYPE_AP) |
456 BIT(NL80211_IFTYPE_P2P_GO) },
8c66a3d9
JB		 457 /* must be last, see hwsim_if_comb */
458 { .max = 1, .types = BIT(NL80211_IFTYPE_P2P_DEVICE) }
de0421d5
JB		 459};
460
de0421d5 461static const struct ieee80211_iface_combination hwsim_if_comb[] = {
8c66a3d9
JB		 462 {
463 .limits = hwsim_if_limits,
464 /* remove the last entry which is P2P_DEVICE */
465 .n_limits = ARRAY_SIZE(hwsim_if_limits) - 1,
466 .max_interfaces = 2048,
467 .num_different_channels = 1,
8c66a3d9
JB		 468 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
469 BIT(NL80211_CHAN_WIDTH_20) |
470 BIT(NL80211_CHAN_WIDTH_40) |
471 BIT(NL80211_CHAN_WIDTH_80) |
472 BIT(NL80211_CHAN_WIDTH_160),
f7736f50 473 },
8c66a3d9
JB		 474};
475
476static const struct ieee80211_iface_combination hwsim_if_comb_p2p_dev[] = {
de0421d5
JB		 477 {
478 .limits = hwsim_if_limits,
479 .n_limits = ARRAY_SIZE(hwsim_if_limits),
480 .max_interfaces = 2048,
481 .num_different_channels = 1,
de0421d5
JB		 482 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
483 BIT(NL80211_CHAN_WIDTH_20) |
484 BIT(NL80211_CHAN_WIDTH_40) |
485 BIT(NL80211_CHAN_WIDTH_80) |
486 BIT(NL80211_CHAN_WIDTH_160),
f7736f50 487 },
de0421d5
JB		 488};
489
0e057d73 490static spinlock_t hwsim_radio_lock;
b59abfbe 491static LIST_HEAD(hwsim_radios);
2d68992b 492static int hwsim_radio_idx;
0e057d73 493
de0421d5
JB		 494static struct platform_driver mac80211_hwsim_driver = {
495 .driver = {
496 .name = "mac80211_hwsim",
de0421d5
JB		 497 },
498};
0e057d73 499
acc1e7a3 500struct mac80211_hwsim_data {
0e057d73
JB		 501 struct list_head list;
502 struct ieee80211_hw *hw;
acc1e7a3 503 struct device *dev;
57fbcce3 504 struct ieee80211_supported_band bands[NUM_NL80211_BANDS];
22cad735
LR		 505 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
506 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
acc1e7a3 507 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
38ed5048 508 struct ieee80211_iface_combination if_combination;
acc1e7a3 509
ef15aac6 510 struct mac_address addresses[2];
bc791098 511 int channels, idx;
361c3e04 512 bool use_chanctx;
e9ed49bf
JR		 513 bool destroy_on_close;
514 struct work_struct destroy_work;
515 u32 portid;
93d638d4
PF		 516 char alpha2[2];
517 const struct ieee80211_regdomain *regd;
ef15aac6 518
e8261171 519 struct ieee80211_channel *tmp_chan;
661ef475
JB		 520 struct ieee80211_channel *roc_chan;
521 u32 roc_duration;
522 struct delayed_work roc_start;
e8261171
JB		 523 struct delayed_work roc_done;
524 struct delayed_work hw_scan;
525 struct cfg80211_scan_request *hw_scan_request;
526 struct ieee80211_vif *hw_scan_vif;
527 int scan_chan_idx;
339467b9 528 u8 scan_addr[ETH_ALEN];
7f813ce1
JB		 529 struct {
530 struct ieee80211_channel *channel;
531 unsigned long next_start, start, end;
532 } survey_data[ARRAY_SIZE(hwsim_channels_2ghz) +
533 ARRAY_SIZE(hwsim_channels_5ghz)];
e8261171 534
acc1e7a3 535 struct ieee80211_channel *channel;
01e59e46 536 u64 beacon_int /* beacon interval in us */;
acc1e7a3 537 unsigned int rx_filter;
f74cb0f7
LR		 538 bool started, idle, scanning;
539 struct mutex mutex;
01e59e46 540 struct tasklet_hrtimer beacon_timer;
fc6971d4
JM		 541 enum ps_mode {
542 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
543 } ps;
544 bool ps_poll_pending;
545 struct dentry *debugfs;
73606d00 546
959eb2fd 547 uintptr_t pending_cookie;
7882513b 548 struct sk_buff_head pending; /* packets pending */
73606d00
DW		 549 /*
550 * Only radios in the same group can communicate together (the
551 * channel has to match too). Each bit represents a group. A
9ebac15f 552 * radio can be in more than one group.
73606d00
DW		 553 */
554 u64 group;
bdd7bd16 555
100cb9ff
MW		 556 /* group shared by radios created in the same netns */
557 int netgroup;
f21e4d8e
MW		 558 /* wmediumd portid responsible for netgroup of this radio */
559 u32 wmediumd;
100cb9ff 560
2f40b940 561 /* difference between this hw's clock and the real clock, in usecs */
45034bfb 562 s64 tsf_offset;
c51f8783 563 s64 bcn_delta;
b66851c3
TP		 564 /* absolute beacon transmission time. Used to cover up "tx" delay. */
565 u64 abs_bcn_ts;
2155c3f8
BG		 566
567 /* Stats */
568 u64 tx_pkts;
569 u64 rx_pkts;
570 u64 tx_bytes;
571 u64 rx_bytes;
572 u64 tx_dropped;
573 u64 tx_failed;
acc1e7a3
JM		 574};
575
576
577struct hwsim_radiotap_hdr {
578 struct ieee80211_radiotap_header hdr;
2f40b940 579 __le64 rt_tsft;
acc1e7a3
JM		 580 u8 rt_flags;
581 u8 rt_rate;
582 __le16 rt_channel;
583 __le16 rt_chbitmask;
ba2d3587 584} __packed;
acc1e7a3 585
76a56eb3
JM		 586struct hwsim_radiotap_ack_hdr {
587 struct ieee80211_radiotap_header hdr;
588 u8 rt_flags;
589 u8 pad;
590 __le16 rt_channel;
591 __le16 rt_chbitmask;
592} __packed;
593
489111e5
JB		 594/* MAC80211_HWSIM netlink family */
595static struct genl_family hwsim_genl_family;
7882513b 596
62759361
JR		 597enum hwsim_multicast_groups {
598 HWSIM_MCGRP_CONFIG,
599};
600
601static const struct genl_multicast_group hwsim_mcgrps[] = {
602 [HWSIM_MCGRP_CONFIG] = { .name = "config", },
603};
604
7882513b
JL		 605/* MAC80211_HWSIM netlink policy */
606
205d2429 607static const struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
9ddd12af
JB		 608 [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
609 [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
7882513b
JL		 610 [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
611 .len = IEEE80211_MAX_DATA_LEN },
612 [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
613 [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
614 [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
615 [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC,
9ddd12af
JB		 616 .len = IEEE80211_TX_MAX_RATES *
617 sizeof(struct hwsim_tx_rate)},
7882513b 618 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
bc791098
JB		 619 [HWSIM_ATTR_CHANNELS] = { .type = NLA_U32 },
620 [HWSIM_ATTR_RADIO_ID] = { .type = NLA_U32 },
26b0e411
JB		 621 [HWSIM_ATTR_REG_HINT_ALPHA2] = { .type = NLA_STRING, .len = 2 },
622 [HWSIM_ATTR_REG_CUSTOM_REG] = { .type = NLA_U32 },
623 [HWSIM_ATTR_REG_STRICT_REG] = { .type = NLA_FLAG },
8c66a3d9 624 [HWSIM_ATTR_SUPPORT_P2P_DEVICE] = { .type = NLA_FLAG },
e9ed49bf 625 [HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE] = { .type = NLA_FLAG },
de29eda8
JB		 626 [HWSIM_ATTR_RADIO_NAME] = { .type = NLA_STRING },
627 [HWSIM_ATTR_NO_VIF] = { .type = NLA_FLAG },
628 [HWSIM_ATTR_FREQ] = { .type = NLA_U32 },
7882513b 629};
acc1e7a3 630
de0421d5
JB		 631static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
632 struct sk_buff *skb,
633 struct ieee80211_channel *chan);
634
635/* sysfs attributes */
636static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
637{
638 struct mac80211_hwsim_data *data = dat;
639 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
640 struct sk_buff *skb;
641 struct ieee80211_pspoll *pspoll;
642
643 if (!vp->assoc)
644 return;
645
646 wiphy_debug(data->hw->wiphy,
647 "%s: send PS-Poll to %pM for aid %d\n",
648 __func__, vp->bssid, vp->aid);
649
650 skb = dev_alloc_skb(sizeof(*pspoll));
651 if (!skb)
652 return;
4df864c1 653 pspoll = skb_put(skb, sizeof(*pspoll));
de0421d5
JB		 654 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
655 IEEE80211_STYPE_PSPOLL |
656 IEEE80211_FCTL_PM);
657 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
658 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
659 memcpy(pspoll->ta, mac, ETH_ALEN);
660
661 rcu_read_lock();
662 mac80211_hwsim_tx_frame(data->hw, skb,
663 rcu_dereference(vif->chanctx_conf)->def.chan);
664 rcu_read_unlock();
665}
666
667static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
668 struct ieee80211_vif *vif, int ps)
669{
670 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
671 struct sk_buff *skb;
672 struct ieee80211_hdr *hdr;
673
674 if (!vp->assoc)
675 return;
676
677 wiphy_debug(data->hw->wiphy,
678 "%s: send data::nullfunc to %pM ps=%d\n",
679 __func__, vp->bssid, ps);
680
681 skb = dev_alloc_skb(sizeof(*hdr));
682 if (!skb)
683 return;
4df864c1 684 hdr = skb_put(skb, sizeof(*hdr) - ETH_ALEN);
de0421d5
JB		 685 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
686 IEEE80211_STYPE_NULLFUNC |
687 (ps ? IEEE80211_FCTL_PM : 0));
688 hdr->duration_id = cpu_to_le16(0);
689 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
690 memcpy(hdr->addr2, mac, ETH_ALEN);
691 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
692
693 rcu_read_lock();
694 mac80211_hwsim_tx_frame(data->hw, skb,
695 rcu_dereference(vif->chanctx_conf)->def.chan);
696 rcu_read_unlock();
697}
698
699
700static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
701 struct ieee80211_vif *vif)
702{
703 struct mac80211_hwsim_data *data = dat;
704 hwsim_send_nullfunc(data, mac, vif, 1);
705}
706
707static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
708 struct ieee80211_vif *vif)
709{
710 struct mac80211_hwsim_data *data = dat;
711 hwsim_send_nullfunc(data, mac, vif, 0);
712}
713
714static int hwsim_fops_ps_read(void *dat, u64 *val)
715{
716 struct mac80211_hwsim_data *data = dat;
717 *val = data->ps;
718 return 0;
719}
720
721static int hwsim_fops_ps_write(void *dat, u64 val)
722{
723 struct mac80211_hwsim_data *data = dat;
724 enum ps_mode old_ps;
725
726 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
727 val != PS_MANUAL_POLL)
728 return -EINVAL;
729
730 old_ps = data->ps;
731 data->ps = val;
732
a809ca5e 733 local_bh_disable();
de0421d5 734 if (val == PS_MANUAL_POLL) {
a809ca5e
JB		 735 ieee80211_iterate_active_interfaces_atomic(
736 data->hw, IEEE80211_IFACE_ITER_NORMAL,
737 hwsim_send_ps_poll, data);
de0421d5
JB		 738 data->ps_poll_pending = true;
739 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
a809ca5e
JB		 740 ieee80211_iterate_active_interfaces_atomic(
741 data->hw, IEEE80211_IFACE_ITER_NORMAL,
742 hwsim_send_nullfunc_ps, data);
de0421d5 743 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
a809ca5e
JB		 744 ieee80211_iterate_active_interfaces_atomic(
745 data->hw, IEEE80211_IFACE_ITER_NORMAL,
746 hwsim_send_nullfunc_no_ps, data);
de0421d5 747 }
a809ca5e 748 local_bh_enable();
de0421d5
JB		 749
750 return 0;
751}
752
753DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
754 "%llu\n");
755
756static int hwsim_write_simulate_radar(void *dat, u64 val)
757{
758 struct mac80211_hwsim_data *data = dat;
759
760 ieee80211_radar_detected(data->hw);
761
762 return 0;
763}
764
765DEFINE_SIMPLE_ATTRIBUTE(hwsim_simulate_radar, NULL,
766 hwsim_write_simulate_radar, "%llu\n");
767
768static int hwsim_fops_group_read(void *dat, u64 *val)
769{
770 struct mac80211_hwsim_data *data = dat;
771 *val = data->group;
772 return 0;
773}
774
775static int hwsim_fops_group_write(void *dat, u64 val)
776{
777 struct mac80211_hwsim_data *data = dat;
778 data->group = val;
779 return 0;
780}
781
782DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
783 hwsim_fops_group_read, hwsim_fops_group_write,
784 "%llx\n");
785
d0cf9c0d
SH		 786static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
787 struct net_device *dev)
acc1e7a3
JM		 788{
789 /* TODO: allow packet injection */
790 dev_kfree_skb(skb);
6ed10654 791 return NETDEV_TX_OK;
acc1e7a3
JM		 792}
793
b66851c3
TP		 794static inline u64 mac80211_hwsim_get_tsf_raw(void)
795{
796 return ktime_to_us(ktime_get_real());
797}
798
2f40b940
JC		 799static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
800{
b66851c3 801 u64 now = mac80211_hwsim_get_tsf_raw();
2f40b940
JC		 802 return cpu_to_le64(now + data->tsf_offset);
803}
acc1e7a3 804
12ce8ba3 805static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
b66851c3 806 struct ieee80211_vif *vif)
12ce8ba3
JC		 807{
808 struct mac80211_hwsim_data *data = hw->priv;
809 return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
810}
811
812static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
813 struct ieee80211_vif *vif, u64 tsf)
814{
815 struct mac80211_hwsim_data *data = hw->priv;
45034bfb 816 u64 now = mac80211_hwsim_get_tsf(hw, vif);
c51f8783 817 u32 bcn_int = data->beacon_int;
79211c8e 818 u64 delta = abs(tsf - now);
45034bfb 819
c51f8783 820 /* adjust after beaconing with new timestamp at old TBTT */
5d26b508
AB		 821 if (tsf > now) {
822 data->tsf_offset += delta;
823 data->bcn_delta = do_div(delta, bcn_int);
824 } else {
825 data->tsf_offset -= delta;
4fb7f8af 826 data->bcn_delta = -(s64)do_div(delta, bcn_int);
5d26b508 827 }
12ce8ba3
JC		 828}
829
acc1e7a3 830static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
e8261171
JB		 831 struct sk_buff *tx_skb,
832 struct ieee80211_channel *chan)
acc1e7a3
JM		 833{
834 struct mac80211_hwsim_data *data = hw->priv;
835 struct sk_buff *skb;
836 struct hwsim_radiotap_hdr *hdr;
837 u16 flags;
838 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
839 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
840
89f44d8c
AK		 841 if (WARN_ON(!txrate))
842 return;
843
acc1e7a3
JM		 844 if (!netif_running(hwsim_mon))
845 return;
846
847 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
848 if (skb == NULL)
849 return;
850
d58ff351 851 hdr = skb_push(skb, sizeof(*hdr));
acc1e7a3
JM		 852 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
853 hdr->hdr.it_pad = 0;
854 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
f248f105
JM		 855 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
856 (1 << IEEE80211_RADIOTAP_RATE) |
2f40b940 857 (1 << IEEE80211_RADIOTAP_TSFT) |
f248f105 858 (1 << IEEE80211_RADIOTAP_CHANNEL));
2f40b940 859 hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
acc1e7a3
JM		 860 hdr->rt_flags = 0;
861 hdr->rt_rate = txrate->bitrate / 5;
e8261171 862 hdr->rt_channel = cpu_to_le16(chan->center_freq);
acc1e7a3
JM		 863 flags = IEEE80211_CHAN_2GHZ;
864 if (txrate->flags & IEEE80211_RATE_ERP_G)
865 flags |= IEEE80211_CHAN_OFDM;
866 else
867 flags |= IEEE80211_CHAN_CCK;
868 hdr->rt_chbitmask = cpu_to_le16(flags);
869
870 skb->dev = hwsim_mon;
6b163a85 871 skb_reset_mac_header(skb);
acc1e7a3
JM		 872 skb->ip_summed = CHECKSUM_UNNECESSARY;
873 skb->pkt_type = PACKET_OTHERHOST;
f248f105 874 skb->protocol = htons(ETH_P_802_2);
acc1e7a3
JM		 875 memset(skb->cb, 0, sizeof(skb->cb));
876 netif_rx(skb);
877}
878
879
e8261171
JB		 880static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
881 const u8 *addr)
6c085227 882{
6c085227 883 struct sk_buff *skb;
76a56eb3 884 struct hwsim_radiotap_ack_hdr *hdr;
6c085227
JM		 885 u16 flags;
886 struct ieee80211_hdr *hdr11;
887
888 if (!netif_running(hwsim_mon))
889 return;
890
891 skb = dev_alloc_skb(100);
892 if (skb == NULL)
893 return;
894
4df864c1 895 hdr = skb_put(skb, sizeof(*hdr));
6c085227
JM		 896 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
897 hdr->hdr.it_pad = 0;
898 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
899 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
900 (1 << IEEE80211_RADIOTAP_CHANNEL));
901 hdr->rt_flags = 0;
76a56eb3 902 hdr->pad = 0;
e8261171 903 hdr->rt_channel = cpu_to_le16(chan->center_freq);
6c085227
JM		 904 flags = IEEE80211_CHAN_2GHZ;
905 hdr->rt_chbitmask = cpu_to_le16(flags);
906
4df864c1 907 hdr11 = skb_put(skb, 10);
6c085227
JM		 908 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
909 IEEE80211_STYPE_ACK);
910 hdr11->duration_id = cpu_to_le16(0);
911 memcpy(hdr11->addr1, addr, ETH_ALEN);
912
913 skb->dev = hwsim_mon;
6b163a85 914 skb_reset_mac_header(skb);
6c085227
JM		 915 skb->ip_summed = CHECKSUM_UNNECESSARY;
916 skb->pkt_type = PACKET_OTHERHOST;
917 skb->protocol = htons(ETH_P_802_2);
918 memset(skb->cb, 0, sizeof(skb->cb));
919 netif_rx(skb);
920}
921
3283e286
JB		 922struct mac80211_hwsim_addr_match_data {
923 u8 addr[ETH_ALEN];
924 bool ret;
925};
926
927static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
928 struct ieee80211_vif *vif)
929{
930 struct mac80211_hwsim_addr_match_data *md = data;
931
932 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
933 md->ret = true;
934}
935
936static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
937 const u8 *addr)
938{
939 struct mac80211_hwsim_addr_match_data md = {
940 .ret = false,
941 };
942
339467b9
JB		 943 if (data->scanning && memcmp(addr, data->scan_addr, ETH_ALEN) == 0)
944 return true;
945
3283e286
JB		 946 memcpy(md.addr, addr, ETH_ALEN);
947
948 ieee80211_iterate_active_interfaces_atomic(data->hw,
949 IEEE80211_IFACE_ITER_NORMAL,
950 mac80211_hwsim_addr_iter,
951 &md);
952
953 return md.ret;
954}
6c085227 955
fc6971d4
JM		 956static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
957 struct sk_buff *skb)
958{
959 switch (data->ps) {
960 case PS_DISABLED:
961 return true;
962 case PS_ENABLED:
963 return false;
964 case PS_AUTO_POLL:
965 /* TODO: accept (some) Beacons by default and other frames only
966 * if pending PS-Poll has been sent */
967 return true;
968 case PS_MANUAL_POLL:
969 /* Allow unicast frames to own address if there is a pending
970 * PS-Poll */
971 if (data->ps_poll_pending &&
3283e286 972 mac80211_hwsim_addr_match(data, skb->data + 4)) {
fc6971d4
JM		 973 data->ps_poll_pending = false;
974 return true;
975 }
976 return false;
977 }
978
979 return true;
980}
981
f21e4d8e
MW		 982static int hwsim_unicast_netgroup(struct mac80211_hwsim_data *data,
983 struct sk_buff *skb, int portid)
984{
985 struct net *net;
986 bool found = false;
987 int res = -ENOENT;
988
989 rcu_read_lock();
990 for_each_net_rcu(net) {
991 if (data->netgroup == hwsim_net_get_netgroup(net)) {
992 res = genlmsg_unicast(net, skb, portid);
993 found = true;
994 break;
995 }
996 }
997 rcu_read_unlock();
998
999 if (!found)
1000 nlmsg_free(skb);
1001
1002 return res;
1003}
1004
7882513b
JL		 1005static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
1006 struct sk_buff *my_skb,
15e47304 1007 int dst_portid)
7882513b
JL		 1008{
1009 struct sk_buff *skb;
1010 struct mac80211_hwsim_data *data = hw->priv;
1011 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
1012 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
1013 void *msg_head;
1014 unsigned int hwsim_flags = 0;
1015 int i;
1016 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
959eb2fd 1017 uintptr_t cookie;
7882513b 1018
7882513b
JL		 1019 if (data->ps != PS_DISABLED)
1020 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1021 /* If the queue contains MAX_QUEUE skb's drop some */
1022 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
1023 /* Droping until WARN_QUEUE level */
2155c3f8 1024 while (skb_queue_len(&data->pending) >= WARN_QUEUE) {
b7bc9679 1025 ieee80211_free_txskb(hw, skb_dequeue(&data->pending));
2155c3f8
BG		 1026 data->tx_dropped++;
1027 }
7882513b
JL		 1028 }
1029
58050fce 1030 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
7882513b
JL		 1031 if (skb == NULL)
1032 goto nla_put_failure;
1033
1034 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
1035 HWSIM_CMD_FRAME);
1036 if (msg_head == NULL) {
1037 printk(KERN_DEBUG "mac80211_hwsim: problem with msg_head\n");
1038 goto nla_put_failure;
1039 }
1040
354210f8
BC		 1041 if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
1042 ETH_ALEN, data->addresses[1].addr))
633c9389 1043 goto nla_put_failure;
265dc7f0 1044
7882513b 1045 /* We get the skb->data */
633c9389
DM		 1046 if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
1047 goto nla_put_failure;
7882513b
JL		 1048
1049 /* We get the flags for this transmission, and we translate them to
1050 wmediumd flags */
1051
1052 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
1053 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
1054
1055 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
1056 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
1057
633c9389
DM		 1058 if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
1059 goto nla_put_failure;
7882513b 1060
4f86ed8f
BG		 1061 if (nla_put_u32(skb, HWSIM_ATTR_FREQ, data->channel->center_freq))
1062 goto nla_put_failure;
1063
7882513b
JL		 1064 /* We get the tx control (rate and retries) info*/
1065
1066 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
1067 tx_attempts[i].idx = info->status.rates[i].idx;
1068 tx_attempts[i].count = info->status.rates[i].count;
1069 }
1070
633c9389
DM		 1071 if (nla_put(skb, HWSIM_ATTR_TX_INFO,
1072 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
1073 tx_attempts))
1074 goto nla_put_failure;
7882513b
JL		 1075
1076 /* We create a cookie to identify this skb */
959eb2fd
JB		 1077 data->pending_cookie++;
1078 cookie = data->pending_cookie;
1079 info->rate_driver_data[0] = (void *)cookie;
08f4cbb8 1080 if (nla_put_u64_64bit(skb, HWSIM_ATTR_COOKIE, cookie, HWSIM_ATTR_PAD))
633c9389 1081 goto nla_put_failure;
7882513b
JL		 1082
1083 genlmsg_end(skb, msg_head);
f21e4d8e 1084 if (hwsim_unicast_netgroup(data, skb, dst_portid))
f2831e20 1085 goto err_free_txskb;
7882513b
JL		 1086
1087 /* Enqueue the packet */
1088 skb_queue_tail(&data->pending, my_skb);
2155c3f8
BG		 1089 data->tx_pkts++;
1090 data->tx_bytes += my_skb->len;
7882513b
JL		 1091 return;
1092
1093nla_put_failure:
f2831e20
BC		 1094 nlmsg_free(skb);
1095err_free_txskb:
c393862f 1096 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
b7bc9679 1097 ieee80211_free_txskb(hw, my_skb);
2155c3f8 1098 data->tx_failed++;
7882513b
JL		 1099}
1100
e8261171
JB		 1101static bool hwsim_chans_compat(struct ieee80211_channel *c1,
1102 struct ieee80211_channel *c2)
1103{
1104 if (!c1 || !c2)
1105 return false;
1106
1107 return c1->center_freq == c2->center_freq;
1108}
1109
1110struct tx_iter_data {
1111 struct ieee80211_channel *channel;
1112 bool receive;
1113};
1114
1115static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
1116 struct ieee80211_vif *vif)
1117{
1118 struct tx_iter_data *data = _data;
1119
1120 if (!vif->chanctx_conf)
1121 return;
1122
1123 if (!hwsim_chans_compat(data->channel,
4bf88530 1124 rcu_dereference(vif->chanctx_conf)->def.chan))
e8261171
JB		 1125 return;
1126
1127 data->receive = true;
1128}
1129
1f7bba79
JB		 1130static void mac80211_hwsim_add_vendor_rtap(struct sk_buff *skb)
1131{
1132 /*
1133 * To enable this code, #define the HWSIM_RADIOTAP_OUI,
1134 * e.g. like this:
1135 * #define HWSIM_RADIOTAP_OUI "\x02\x00\x00"
1136 * (but you should use a valid OUI, not that)
1137 *
1138 * If anyone wants to 'donate' a radiotap OUI/subns code
1139 * please send a patch removing this #ifdef and changing
1140 * the values accordingly.
1141 */
1142#ifdef HWSIM_RADIOTAP_OUI
1143 struct ieee80211_vendor_radiotap *rtap;
1144
1145 /*
1146 * Note that this code requires the headroom in the SKB
1147 * that was allocated earlier.
1148 */
d58ff351 1149 rtap = skb_push(skb, sizeof(*rtap) + 8 + 4);
1f7bba79
JB		 1150 rtap->oui[0] = HWSIM_RADIOTAP_OUI[0];
1151 rtap->oui[1] = HWSIM_RADIOTAP_OUI[1];
1152 rtap->oui[2] = HWSIM_RADIOTAP_OUI[2];
1153 rtap->subns = 127;
1154
1155 /*
1156 * Radiotap vendor namespaces can (and should) also be
1157 * split into fields by using the standard radiotap
1158 * presence bitmap mechanism. Use just BIT(0) here for
1159 * the presence bitmap.
1160 */
1161 rtap->present = BIT(0);
1162 /* We have 8 bytes of (dummy) data */
1163 rtap->len = 8;
1164 /* For testing, also require it to be aligned */
1165 rtap->align = 8;
1166 /* And also test that padding works, 4 bytes */
1167 rtap->pad = 4;
1168 /* push the data */
1169 memcpy(rtap->data, "ABCDEFGH", 8);
1170 /* make sure to clear padding, mac80211 doesn't */
1171 memset(rtap->data + 8, 0, 4);
1172
1173 IEEE80211_SKB_RXCB(skb)->flag |= RX_FLAG_RADIOTAP_VENDOR_DATA;
1174#endif
1175}
1176
7882513b 1177static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
e8261171
JB		 1178 struct sk_buff *skb,
1179 struct ieee80211_channel *chan)
acc1e7a3 1180{
0e057d73
JB		 1181 struct mac80211_hwsim_data *data = hw->priv, *data2;
1182 bool ack = false;
e36cfdc9 1183 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
acc1e7a3 1184 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
e36cfdc9 1185 struct ieee80211_rx_status rx_status;
b66851c3 1186 u64 now;
acc1e7a3
JM		 1187
1188 memset(&rx_status, 0, sizeof(rx_status));
f4bda337 1189 rx_status.flag |= RX_FLAG_MACTIME_START;
e8261171
JB		 1190 rx_status.freq = chan->center_freq;
1191 rx_status.band = chan->band;
dad6330d
KB		 1192 if (info->control.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) {
1193 rx_status.rate_idx =
1194 ieee80211_rate_get_vht_mcs(&info->control.rates[0]);
8613c948 1195 rx_status.nss =
dad6330d 1196 ieee80211_rate_get_vht_nss(&info->control.rates[0]);
da6a4352 1197 rx_status.encoding = RX_ENC_VHT;
dad6330d
KB		 1198 } else {
1199 rx_status.rate_idx = info->control.rates[0].idx;
1200 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
da6a4352 1201 rx_status.encoding = RX_ENC_HT;
dad6330d 1202 }
281ed297 1203 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
2f242bf4
JB		 1204 rx_status.bw = RATE_INFO_BW_40;
1205 else if (info->control.rates[0].flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
1206 rx_status.bw = RATE_INFO_BW_80;
1207 else if (info->control.rates[0].flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
1208 rx_status.bw = RATE_INFO_BW_160;
1209 else
1210 rx_status.bw = RATE_INFO_BW_20;
281ed297 1211 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
7fdd69c5 1212 rx_status.enc_flags |= RX_ENC_FLAG_SHORT_GI;
4b14c96d 1213 /* TODO: simulate real signal strength (and optional packet loss) */
1d5e9f80
JB		 1214 rx_status.signal = -50;
1215 if (info->control.vif)
1216 rx_status.signal += info->control.vif->bss_conf.txpower;
acc1e7a3 1217
fc6971d4
JM		 1218 if (data->ps != PS_DISABLED)
1219 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1220
90e3012e
JB		 1221 /* release the skb's source info */
1222 skb_orphan(skb);
c0acf38e 1223 skb_dst_drop(skb);
90e3012e
JB		 1224 skb->mark = 0;
1225 secpath_reset(skb);
1226 nf_reset(skb);
1227
b66851c3
TP		 1228 /*
1229 * Get absolute mactime here so all HWs RX at the "same time", and
1230 * absolute TX time for beacon mactime so the timestamp matches.
1231 * Giving beacons a different mactime than non-beacons looks messy, but
1232 * it helps the Toffset be exact and a ~10us mactime discrepancy
1233 * probably doesn't really matter.
1234 */
1235 if (ieee80211_is_beacon(hdr->frame_control) ||
1236 ieee80211_is_probe_resp(hdr->frame_control))
1237 now = data->abs_bcn_ts;
1238 else
1239 now = mac80211_hwsim_get_tsf_raw();
1240
acc1e7a3 1241 /* Copy skb to all enabled radios that are on the current frequency */
0e057d73
JB		 1242 spin_lock(&hwsim_radio_lock);
1243 list_for_each_entry(data2, &hwsim_radios, list) {
acc1e7a3 1244 struct sk_buff *nskb;
e8261171
JB		 1245 struct tx_iter_data tx_iter_data = {
1246 .receive = false,
1247 .channel = chan,
1248 };
acc1e7a3 1249
0e057d73 1250 if (data == data2)
acc1e7a3 1251 continue;
0e057d73 1252
e8261171
JB		 1253 if (!data2->started || (data2->idle && !data2->tmp_chan) ||
1254 !hwsim_ps_rx_ok(data2, skb))
acc1e7a3
JM		 1255 continue;
1256
e8261171
JB		 1257 if (!(data->group & data2->group))
1258 continue;
1259
100cb9ff
MW		 1260 if (data->netgroup != data2->netgroup)
1261 continue;
1262
e8261171
JB		 1263 if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
1264 !hwsim_chans_compat(chan, data2->channel)) {
1265 ieee80211_iterate_active_interfaces_atomic(
8b2c9824
JB		 1266 data2->hw, IEEE80211_IFACE_ITER_NORMAL,
1267 mac80211_hwsim_tx_iter, &tx_iter_data);
e8261171
JB		 1268 if (!tx_iter_data.receive)
1269 continue;
1270 }
1271
90b9e446
JB		 1272 /*
1273 * reserve some space for our vendor and the normal
1274 * radiotap header, since we're copying anyway
1275 */
a357d7f9
JB		 1276 if (skb->len < PAGE_SIZE && paged_rx) {
1277 struct page *page = alloc_page(GFP_ATOMIC);
1278
1279 if (!page)
1280 continue;
1281
1282 nskb = dev_alloc_skb(128);
1283 if (!nskb) {
1284 __free_page(page);
1285 continue;
1286 }
1287
1288 memcpy(page_address(page), skb->data, skb->len);
1289 skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
1290 } else {
1291 nskb = skb_copy(skb, GFP_ATOMIC);
1292 if (!nskb)
1293 continue;
1294 }
acc1e7a3 1295
265dc7f0 1296 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
0e057d73 1297 ack = true;
f483ad25 1298
b66851c3 1299 rx_status.mactime = now + data2->tsf_offset;
90b9e446 1300
f1d58c25 1301 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
1f7bba79
JB		 1302
1303 mac80211_hwsim_add_vendor_rtap(nskb);
1304
2155c3f8
BG		 1305 data2->rx_pkts++;
1306 data2->rx_bytes += nskb->len;
f1d58c25 1307 ieee80211_rx_irqsafe(data2->hw, nskb);
acc1e7a3 1308 }
0e057d73 1309 spin_unlock(&hwsim_radio_lock);
acc1e7a3 1310
e36cfdc9
JM		 1311 return ack;
1312}
1313
36323f81
TH		 1314static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
1315 struct ieee80211_tx_control *control,
1316 struct sk_buff *skb)
e36cfdc9 1317{
e8261171
JB		 1318 struct mac80211_hwsim_data *data = hw->priv;
1319 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
732b5395 1320 struct ieee80211_hdr *hdr = (void *)skb->data;
e8261171
JB		 1321 struct ieee80211_chanctx_conf *chanctx_conf;
1322 struct ieee80211_channel *channel;
0e057d73 1323 bool ack;
15e47304 1324 u32 _portid;
e36cfdc9 1325
e8261171 1326 if (WARN_ON(skb->len < 10)) {
e36cfdc9 1327 /* Should not happen; just a sanity check for addr1 use */
fe0f3cd2 1328 ieee80211_free_txskb(hw, skb);
7bb45683 1329 return;
e36cfdc9
JM		 1330 }
1331
361c3e04 1332 if (!data->use_chanctx) {
e8261171
JB		 1333 channel = data->channel;
1334 } else if (txi->hw_queue == 4) {
1335 channel = data->tmp_chan;
1336 } else {
1337 chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf);
1338 if (chanctx_conf)
4bf88530 1339 channel = chanctx_conf->def.chan;
e8261171
JB		 1340 else
1341 channel = NULL;
1342 }
1343
1344 if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
fe0f3cd2 1345 ieee80211_free_txskb(hw, skb);
e8261171
JB		 1346 return;
1347 }
1348
1349 if (data->idle && !data->tmp_chan) {
1350 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
fe0f3cd2 1351 ieee80211_free_txskb(hw, skb);
e8261171
JB		 1352 return;
1353 }
1354
1355 if (txi->control.vif)
1356 hwsim_check_magic(txi->control.vif);
1357 if (control->sta)
1358 hwsim_check_sta_magic(control->sta);
1359
30686bf7 1360 if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE))
1eb32179
KB		 1361 ieee80211_get_tx_rates(txi->control.vif, control->sta, skb,
1362 txi->control.rates,
1363 ARRAY_SIZE(txi->control.rates));
e8261171 1364
732b5395
JM		 1365 if (skb->len >= 24 + 8 &&
1366 ieee80211_is_probe_resp(hdr->frame_control)) {
1367 /* fake header transmission time */
1368 struct ieee80211_mgmt *mgmt;
1369 struct ieee80211_rate *txrate;
1370 u64 ts;
1371
1372 mgmt = (struct ieee80211_mgmt *)skb->data;
1373 txrate = ieee80211_get_tx_rate(hw, txi);
1374 ts = mac80211_hwsim_get_tsf_raw();
1375 mgmt->u.probe_resp.timestamp =
1376 cpu_to_le64(ts + data->tsf_offset +
1377 24 * 8 * 10 / txrate->bitrate);
1378 }
1379
e8261171
JB		 1380 mac80211_hwsim_monitor_rx(hw, skb, channel);
1381
7882513b 1382 /* wmediumd mode check */
f21e4d8e 1383 _portid = ACCESS_ONCE(data->wmediumd);
7882513b 1384
15e47304
EB		 1385 if (_portid)
1386 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
7882513b
JL		 1387
1388 /* NO wmediumd detected, perfect medium simulation */
2155c3f8
BG		 1389 data->tx_pkts++;
1390 data->tx_bytes += skb->len;
e8261171 1391 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
7882513b 1392
f06b7ab8 1393 if (ack && skb->len >= 16)
e8261171 1394 mac80211_hwsim_monitor_ack(channel, hdr->addr2);
e36cfdc9 1395
e6a9854b 1396 ieee80211_tx_info_clear_status(txi);
2a4ffa4c
JC		 1397
1398 /* frame was transmitted at most favorable rate at first attempt */
1399 txi->control.rates[0].count = 1;
1400 txi->control.rates[1].idx = -1;
1401
e6a9854b
JB		 1402 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
1403 txi->flags |= IEEE80211_TX_STAT_ACK;
acc1e7a3 1404 ieee80211_tx_status_irqsafe(hw, skb);
acc1e7a3
JM		 1405}
1406
1407
1408static int mac80211_hwsim_start(struct ieee80211_hw *hw)
1409{
1410 struct mac80211_hwsim_data *data = hw->priv;
c96c31e4 1411 wiphy_debug(hw->wiphy, "%s\n", __func__);
3db1cd5c 1412 data->started = true;
acc1e7a3
JM		 1413 return 0;
1414}
1415
1416
1417static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
1418{
1419 struct mac80211_hwsim_data *data = hw->priv;
3db1cd5c 1420 data->started = false;
01e59e46 1421 tasklet_hrtimer_cancel(&data->beacon_timer);
c96c31e4 1422 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 1423}
1424
1425
1426static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
1ed32e4f 1427 struct ieee80211_vif *vif)
acc1e7a3 1428{
c96c31e4 1429 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 1430 __func__, ieee80211_vif_type_p2p(vif),
1431 vif->addr);
1ed32e4f 1432 hwsim_set_magic(vif);
e8261171
JB		 1433
1434 vif->cab_queue = 0;
1435 vif->hw_queue[IEEE80211_AC_VO] = 0;
1436 vif->hw_queue[IEEE80211_AC_VI] = 1;
1437 vif->hw_queue[IEEE80211_AC_BE] = 2;
1438 vif->hw_queue[IEEE80211_AC_BK] = 3;
1439
acc1e7a3
JM		 1440 return 0;
1441}
1442
1443
c35d0270
JB		 1444static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
1445 struct ieee80211_vif *vif,
2ca27bcf
JB		 1446 enum nl80211_iftype newtype,
1447 bool newp2p)
c35d0270 1448{
2ca27bcf 1449 newtype = ieee80211_iftype_p2p(newtype, newp2p);
c35d0270
JB		 1450 wiphy_debug(hw->wiphy,
1451 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
2ca27bcf
JB		 1452 __func__, ieee80211_vif_type_p2p(vif),
1453 newtype, vif->addr);
c35d0270
JB		 1454 hwsim_check_magic(vif);
1455
3eb92f6a
JB		 1456 /*
1457 * interface may change from non-AP to AP in
1458 * which case this needs to be set up again
1459 */
1460 vif->cab_queue = 0;
1461
c35d0270
JB		 1462 return 0;
1463}
1464
acc1e7a3 1465static void mac80211_hwsim_remove_interface(
1ed32e4f 1466 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
acc1e7a3 1467{
c96c31e4 1468 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 1469 __func__, ieee80211_vif_type_p2p(vif),
1470 vif->addr);
1ed32e4f
JB		 1471 hwsim_check_magic(vif);
1472 hwsim_clear_magic(vif);
acc1e7a3
JM		 1473}
1474
e8261171
JB		 1475static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
1476 struct sk_buff *skb,
1477 struct ieee80211_channel *chan)
1478{
f21e4d8e
MW		 1479 struct mac80211_hwsim_data *data = hw->priv;
1480 u32 _pid = ACCESS_ONCE(data->wmediumd);
e8261171 1481
30686bf7 1482 if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE)) {
1eb32179
KB		 1483 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1484 ieee80211_get_tx_rates(txi->control.vif, NULL, skb,
1485 txi->control.rates,
1486 ARRAY_SIZE(txi->control.rates));
1487 }
1488
e8261171
JB		 1489 mac80211_hwsim_monitor_rx(hw, skb, chan);
1490
1491 if (_pid)
1492 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
1493
1494 mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
1495 dev_kfree_skb(skb);
1496}
acc1e7a3
JM		 1497
1498static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
1499 struct ieee80211_vif *vif)
1500{
b66851c3
TP		 1501 struct mac80211_hwsim_data *data = arg;
1502 struct ieee80211_hw *hw = data->hw;
1503 struct ieee80211_tx_info *info;
1504 struct ieee80211_rate *txrate;
1505 struct ieee80211_mgmt *mgmt;
acc1e7a3 1506 struct sk_buff *skb;
acc1e7a3 1507
8aa21e6f
JB		 1508 hwsim_check_magic(vif);
1509
55b39619 1510 if (vif->type != NL80211_IFTYPE_AP &&
2b2d7795
JB		 1511 vif->type != NL80211_IFTYPE_MESH_POINT &&
1512 vif->type != NL80211_IFTYPE_ADHOC)
acc1e7a3
JM		 1513 return;
1514
1515 skb = ieee80211_beacon_get(hw, vif);
1516 if (skb == NULL)
1517 return;
b66851c3 1518 info = IEEE80211_SKB_CB(skb);
30686bf7 1519 if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE))
1eb32179
KB		 1520 ieee80211_get_tx_rates(vif, NULL, skb,
1521 info->control.rates,
1522 ARRAY_SIZE(info->control.rates));
1523
b66851c3
TP		 1524 txrate = ieee80211_get_tx_rate(hw, info);
1525
1526 mgmt = (struct ieee80211_mgmt *) skb->data;
1527 /* fake header transmission time */
1528 data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
1529 mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
1530 data->tsf_offset +
1531 24 * 8 * 10 / txrate->bitrate);
7882513b 1532
e8261171 1533 mac80211_hwsim_tx_frame(hw, skb,
4bf88530 1534 rcu_dereference(vif->chanctx_conf)->def.chan);
0037db63
AO		 1535
1536 if (vif->csa_active && ieee80211_csa_is_complete(vif))
1537 ieee80211_csa_finish(vif);
acc1e7a3
JM		 1538}
1539
01e59e46
TP		 1540static enum hrtimer_restart
1541mac80211_hwsim_beacon(struct hrtimer *timer)
acc1e7a3 1542{
01e59e46
TP		 1543 struct mac80211_hwsim_data *data =
1544 container_of(timer, struct mac80211_hwsim_data,
1545 beacon_timer.timer);
1546 struct ieee80211_hw *hw = data->hw;
1547 u64 bcn_int = data->beacon_int;
1548 ktime_t next_bcn;
acc1e7a3 1549
4c4c671a 1550 if (!data->started)
01e59e46 1551 goto out;
acc1e7a3 1552
f248f105 1553 ieee80211_iterate_active_interfaces_atomic(
8b2c9824 1554 hw, IEEE80211_IFACE_ITER_NORMAL,
b66851c3 1555 mac80211_hwsim_beacon_tx, data);
acc1e7a3 1556
c51f8783
TP		 1557 /* beacon at new TBTT + beacon interval */
1558 if (data->bcn_delta) {
1559 bcn_int -= data->bcn_delta;
1560 data->bcn_delta = 0;
1561 }
1562
01e59e46
TP		 1563 next_bcn = ktime_add(hrtimer_get_expires(timer),
1564 ns_to_ktime(bcn_int * 1000));
1565 tasklet_hrtimer_start(&data->beacon_timer, next_bcn, HRTIMER_MODE_ABS);
1566out:
1567 return HRTIMER_NORESTART;
acc1e7a3
JM		 1568}
1569
675a0b04
KB		 1570static const char * const hwsim_chanwidths[] = {
1571 [NL80211_CHAN_WIDTH_20_NOHT] = "noht",
1572 [NL80211_CHAN_WIDTH_20] = "ht20",
1573 [NL80211_CHAN_WIDTH_40] = "ht40",
1574 [NL80211_CHAN_WIDTH_80] = "vht80",
1575 [NL80211_CHAN_WIDTH_80P80] = "vht80p80",
1576 [NL80211_CHAN_WIDTH_160] = "vht160",
0aaffa9b 1577};
acc1e7a3 1578
e8975581 1579static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
acc1e7a3
JM		 1580{
1581 struct mac80211_hwsim_data *data = hw->priv;
e8975581 1582 struct ieee80211_conf *conf = &hw->conf;
0f78231b
JB		 1583 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
1584 [IEEE80211_SMPS_AUTOMATIC] = "auto",
1585 [IEEE80211_SMPS_OFF] = "off",
1586 [IEEE80211_SMPS_STATIC] = "static",
1587 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
1588 };
7f813ce1 1589 int idx;
0f78231b 1590
675a0b04
KB		 1591 if (conf->chandef.chan)
1592 wiphy_debug(hw->wiphy,
1593 "%s (freq=%d(%d - %d)/%s idle=%d ps=%d smps=%s)\n",
1594 __func__,
1595 conf->chandef.chan->center_freq,
1596 conf->chandef.center_freq1,
1597 conf->chandef.center_freq2,
1598 hwsim_chanwidths[conf->chandef.width],
1599 !!(conf->flags & IEEE80211_CONF_IDLE),
1600 !!(conf->flags & IEEE80211_CONF_PS),
1601 smps_modes[conf->smps_mode]);
1602 else
1603 wiphy_debug(hw->wiphy,
1604 "%s (freq=0 idle=%d ps=%d smps=%s)\n",
1605 __func__,
1606 !!(conf->flags & IEEE80211_CONF_IDLE),
1607 !!(conf->flags & IEEE80211_CONF_PS),
1608 smps_modes[conf->smps_mode]);
acc1e7a3 1609
70541839
JM		 1610 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1611
7f813ce1 1612 WARN_ON(conf->chandef.chan && data->use_chanctx);
e8261171 1613
7f813ce1
JB		 1614 mutex_lock(&data->mutex);
1615 if (data->scanning && conf->chandef.chan) {
1616 for (idx = 0; idx < ARRAY_SIZE(data->survey_data); idx++) {
1617 if (data->survey_data[idx].channel == data->channel) {
1618 data->survey_data[idx].start =
1619 data->survey_data[idx].next_start;
1620 data->survey_data[idx].end = jiffies;
1621 break;
1622 }
1623 }
1624
1625 data->channel = conf->chandef.chan;
e8261171 1626
7f813ce1
JB		 1627 for (idx = 0; idx < ARRAY_SIZE(data->survey_data); idx++) {
1628 if (data->survey_data[idx].channel &&
1629 data->survey_data[idx].channel != data->channel)
1630 continue;
1631 data->survey_data[idx].channel = data->channel;
1632 data->survey_data[idx].next_start = jiffies;
1633 break;
1634 }
1635 } else {
1636 data->channel = conf->chandef.chan;
1637 }
1638 mutex_unlock(&data->mutex);
e8261171 1639
4c4c671a 1640 if (!data->started || !data->beacon_int)
01e59e46
TP		 1641 tasklet_hrtimer_cancel(&data->beacon_timer);
1642 else if (!hrtimer_is_queued(&data->beacon_timer.timer)) {
c51f8783
TP		 1643 u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
1644 u32 bcn_int = data->beacon_int;
1645 u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1646
01e59e46 1647 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1648 ns_to_ktime(until_tbtt * 1000),
01e59e46
TP		 1649 HRTIMER_MODE_REL);
1650 }
acc1e7a3
JM		 1651
1652 return 0;
1653}
1654
1655
1656static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
1657 unsigned int changed_flags,
3ac64bee 1658 unsigned int *total_flags,u64 multicast)
acc1e7a3
JM		 1659{
1660 struct mac80211_hwsim_data *data = hw->priv;
1661
c96c31e4 1662 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 1663
1664 data->rx_filter = 0;
acc1e7a3
JM		 1665 if (*total_flags & FIF_ALLMULTI)
1666 data->rx_filter |= FIF_ALLMULTI;
1667
1668 *total_flags = data->rx_filter;
1669}
1670
0bb861e6
JM		 1671static void mac80211_hwsim_bcn_en_iter(void *data, u8 *mac,
1672 struct ieee80211_vif *vif)
1673{
1674 unsigned int *count = data;
1675 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1676
1677 if (vp->bcn_en)
1678 (*count)++;
1679}
1680
8aa21e6f
JB		 1681static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
1682 struct ieee80211_vif *vif,
1683 struct ieee80211_bss_conf *info,
1684 u32 changed)
1685{
fc6971d4 1686 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
57c4d7b4 1687 struct mac80211_hwsim_data *data = hw->priv;
fc6971d4 1688
8aa21e6f 1689 hwsim_check_magic(vif);
fe63bfa3 1690
0bb861e6
JM		 1691 wiphy_debug(hw->wiphy, "%s(changed=0x%x vif->addr=%pM)\n",
1692 __func__, changed, vif->addr);
fe63bfa3 1693
2d0ddec5 1694 if (changed & BSS_CHANGED_BSSID) {
c96c31e4
JP		 1695 wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
1696 __func__, info->bssid);
2d0ddec5
JB		 1697 memcpy(vp->bssid, info->bssid, ETH_ALEN);
1698 }
1699
fe63bfa3 1700 if (changed & BSS_CHANGED_ASSOC) {
c96c31e4
JP		 1701 wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
1702 info->assoc, info->aid);
fc6971d4
JM		 1703 vp->assoc = info->assoc;
1704 vp->aid = info->aid;
fe63bfa3
JM		 1705 }
1706
01e59e46 1707 if (changed & BSS_CHANGED_BEACON_ENABLED) {
56067628
JB		 1708 wiphy_debug(hw->wiphy, " BCN EN: %d (BI=%u)\n",
1709 info->enable_beacon, info->beacon_int);
0bb861e6 1710 vp->bcn_en = info->enable_beacon;
01e59e46
TP		 1711 if (data->started &&
1712 !hrtimer_is_queued(&data->beacon_timer.timer) &&
1713 info->enable_beacon) {
c51f8783
TP		 1714 u64 tsf, until_tbtt;
1715 u32 bcn_int;
56067628 1716 data->beacon_int = info->beacon_int * 1024;
c51f8783
TP		 1717 tsf = mac80211_hwsim_get_tsf(hw, vif);
1718 bcn_int = data->beacon_int;
1719 until_tbtt = bcn_int - do_div(tsf, bcn_int);
01e59e46 1720 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1721 ns_to_ktime(until_tbtt * 1000),
01e59e46 1722 HRTIMER_MODE_REL);
0bb861e6
JM		 1723 } else if (!info->enable_beacon) {
1724 unsigned int count = 0;
cdb1b805 1725 ieee80211_iterate_active_interfaces_atomic(
0bb861e6
JM		 1726 data->hw, IEEE80211_IFACE_ITER_NORMAL,
1727 mac80211_hwsim_bcn_en_iter, &count);
1728 wiphy_debug(hw->wiphy, " beaconing vifs remaining: %u",
1729 count);
56067628 1730 if (count == 0) {
0bb861e6 1731 tasklet_hrtimer_cancel(&data->beacon_timer);
56067628
JB		 1732 data->beacon_int = 0;
1733 }
0bb861e6 1734 }
57c4d7b4
JB		 1735 }
1736
fe63bfa3 1737 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
c96c31e4
JP		 1738 wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
1739 info->use_cts_prot);
fe63bfa3
JM		 1740 }
1741
1742 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
c96c31e4
JP		 1743 wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
1744 info->use_short_preamble);
fe63bfa3
JM		 1745 }
1746
1747 if (changed & BSS_CHANGED_ERP_SLOT) {
c96c31e4 1748 wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
fe63bfa3
JM		 1749 }
1750
1751 if (changed & BSS_CHANGED_HT) {
4bf88530
JB		 1752 wiphy_debug(hw->wiphy, " HT: op_mode=0x%x\n",
1753 info->ht_operation_mode);
fe63bfa3
JM		 1754 }
1755
1756 if (changed & BSS_CHANGED_BASIC_RATES) {
c96c31e4
JP		 1757 wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
1758 (unsigned long long) info->basic_rates);
fe63bfa3 1759 }
cbc668a7
JB		 1760
1761 if (changed & BSS_CHANGED_TXPOWER)
1762 wiphy_debug(hw->wiphy, " TX Power: %d dBm\n", info->txpower);
8aa21e6f
JB		 1763}
1764
1d669cbf
JB		 1765static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
1766 struct ieee80211_vif *vif,
1767 struct ieee80211_sta *sta)
1768{
1769 hwsim_check_magic(vif);
1770 hwsim_set_sta_magic(sta);
1771
1772 return 0;
1773}
1774
1775static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
1776 struct ieee80211_vif *vif,
1777 struct ieee80211_sta *sta)
1778{
1779 hwsim_check_magic(vif);
1780 hwsim_clear_sta_magic(sta);
1781
1782 return 0;
1783}
1784
8aa21e6f
JB		 1785static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
1786 struct ieee80211_vif *vif,
17741cdc
JB		 1787 enum sta_notify_cmd cmd,
1788 struct ieee80211_sta *sta)
8aa21e6f
JB		 1789{
1790 hwsim_check_magic(vif);
1d669cbf 1791
81c06523 1792 switch (cmd) {
89fad578
CL		 1793 case STA_NOTIFY_SLEEP:
1794 case STA_NOTIFY_AWAKE:
1795 /* TODO: make good use of these flags */
1796 break;
1d669cbf
JB		 1797 default:
1798 WARN(1, "Invalid sta notify: %d\n", cmd);
1799 break;
81c06523
JB		 1800 }
1801}
1802
1803static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
1804 struct ieee80211_sta *sta,
1805 bool set)
1806{
1807 hwsim_check_sta_magic(sta);
1808 return 0;
8aa21e6f 1809}
acc1e7a3 1810
1e898ff8 1811static int mac80211_hwsim_conf_tx(
8a3a3c85
EP		 1812 struct ieee80211_hw *hw,
1813 struct ieee80211_vif *vif, u16 queue,
1e898ff8
JM		 1814 const struct ieee80211_tx_queue_params *params)
1815{
c96c31e4
JP		 1816 wiphy_debug(hw->wiphy,
1817 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1818 __func__, queue,
1819 params->txop, params->cw_min,
1820 params->cw_max, params->aifs);
1e898ff8
JM		 1821 return 0;
1822}
1823
7f813ce1
JB		 1824static int mac80211_hwsim_get_survey(struct ieee80211_hw *hw, int idx,
1825 struct survey_info *survey)
1289723e 1826{
7f813ce1 1827 struct mac80211_hwsim_data *hwsim = hw->priv;
1289723e 1828
7f813ce1 1829 if (idx < 0 || idx >= ARRAY_SIZE(hwsim->survey_data))
1289723e
HS		 1830 return -ENOENT;
1831
7f813ce1
JB		 1832 mutex_lock(&hwsim->mutex);
1833 survey->channel = hwsim->survey_data[idx].channel;
1834 if (!survey->channel) {
1835 mutex_unlock(&hwsim->mutex);
1836 return -ENOENT;
1837 }
1289723e
HS		 1838
1839 /*
7f813ce1 1840 * Magically conjured dummy values --- this is only ok for simulated hardware.
1289723e 1841 *
7f813ce1
JB		 1842 * A real driver which cannot determine real values noise MUST NOT
1843 * report any, especially not a magically conjured ones :-)
1289723e 1844 */
7f813ce1
JB		 1845 survey->filled = SURVEY_INFO_NOISE_DBM |
1846 SURVEY_INFO_TIME |
1847 SURVEY_INFO_TIME_BUSY;
1289723e 1848 survey->noise = -92;
7f813ce1
JB		 1849 survey->time =
1850 jiffies_to_msecs(hwsim->survey_data[idx].end -
1851 hwsim->survey_data[idx].start);
1852 /* report 12.5% of channel time is used */
1853 survey->time_busy = survey->time/8;
1854 mutex_unlock(&hwsim->mutex);
1289723e
HS		 1855
1856 return 0;
1857}
1858
aff89a9b
JB		 1859#ifdef CONFIG_NL80211_TESTMODE
1860/*
1861 * This section contains example code for using netlink
1862 * attributes with the testmode command in nl80211.
1863 */
1864
1865/* These enums need to be kept in sync with userspace */
1866enum hwsim_testmode_attr {
1867 __HWSIM_TM_ATTR_INVALID = 0,
1868 HWSIM_TM_ATTR_CMD = 1,
1869 HWSIM_TM_ATTR_PS = 2,
1870
1871 /* keep last */
1872 __HWSIM_TM_ATTR_AFTER_LAST,
1873 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1874};
1875
1876enum hwsim_testmode_cmd {
1877 HWSIM_TM_CMD_SET_PS = 0,
1878 HWSIM_TM_CMD_GET_PS = 1,
4d6d0ae2
JB		 1879 HWSIM_TM_CMD_STOP_QUEUES = 2,
1880 HWSIM_TM_CMD_WAKE_QUEUES = 3,
aff89a9b
JB		 1881};
1882
1883static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1884 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1885 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1886};
1887
5bc38193 1888static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
52981cd7 1889 struct ieee80211_vif *vif,
5bc38193 1890 void *data, int len)
aff89a9b
JB		 1891{
1892 struct mac80211_hwsim_data *hwsim = hw->priv;
1893 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1894 struct sk_buff *skb;
1895 int err, ps;
1896
1897 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
fceb6435 1898 hwsim_testmode_policy, NULL);
aff89a9b
JB		 1899 if (err)
1900 return err;
1901
1902 if (!tb[HWSIM_TM_ATTR_CMD])
1903 return -EINVAL;
1904
1905 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1906 case HWSIM_TM_CMD_SET_PS:
1907 if (!tb[HWSIM_TM_ATTR_PS])
1908 return -EINVAL;
1909 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1910 return hwsim_fops_ps_write(hwsim, ps);
1911 case HWSIM_TM_CMD_GET_PS:
1912 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1913 nla_total_size(sizeof(u32)));
1914 if (!skb)
1915 return -ENOMEM;
633c9389
DM		 1916 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
1917 goto nla_put_failure;
aff89a9b 1918 return cfg80211_testmode_reply(skb);
4d6d0ae2
JB		 1919 case HWSIM_TM_CMD_STOP_QUEUES:
1920 ieee80211_stop_queues(hw);
1921 return 0;
1922 case HWSIM_TM_CMD_WAKE_QUEUES:
1923 ieee80211_wake_queues(hw);
1924 return 0;
aff89a9b
JB		 1925 default:
1926 return -EOPNOTSUPP;
1927 }
1928
1929 nla_put_failure:
1930 kfree_skb(skb);
1931 return -ENOBUFS;
1932}
1933#endif
1934
8b73d13a
JB		 1935static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1936 struct ieee80211_vif *vif,
50ea05ef 1937 struct ieee80211_ampdu_params *params)
8b73d13a 1938{
50ea05ef
SS		 1939 struct ieee80211_sta *sta = params->sta;
1940 enum ieee80211_ampdu_mlme_action action = params->action;
1941 u16 tid = params->tid;
1942
8b73d13a
JB		 1943 switch (action) {
1944 case IEEE80211_AMPDU_TX_START:
1945 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1946 break;
18b559d5
JB		 1947 case IEEE80211_AMPDU_TX_STOP_CONT:
1948 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1949 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
8b73d13a
JB		 1950 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1951 break;
1952 case IEEE80211_AMPDU_TX_OPERATIONAL:
1953 break;
1954 case IEEE80211_AMPDU_RX_START:
1955 case IEEE80211_AMPDU_RX_STOP:
1956 break;
1957 default:
1958 return -EOPNOTSUPP;
1959 }
1960
1961 return 0;
1962}
1963
77be2c54
EG		 1964static void mac80211_hwsim_flush(struct ieee80211_hw *hw,
1965 struct ieee80211_vif *vif,
1966 u32 queues, bool drop)
a80f7c0b 1967{
7882513b 1968 /* Not implemented, queues only on kernel side */
a80f7c0b
JB		 1969}
1970
e8261171 1971static void hw_scan_work(struct work_struct *work)
69068036 1972{
e8261171
JB		 1973 struct mac80211_hwsim_data *hwsim =
1974 container_of(work, struct mac80211_hwsim_data, hw_scan.work);
1975 struct cfg80211_scan_request *req = hwsim->hw_scan_request;
1976 int dwell, i;
69068036 1977
e8261171
JB		 1978 mutex_lock(&hwsim->mutex);
1979 if (hwsim->scan_chan_idx >= req->n_channels) {
7947d3e0
AS		 1980 struct cfg80211_scan_info info = {
1981 .aborted = false,
1982 };
1983
e8261171 1984 wiphy_debug(hwsim->hw->wiphy, "hw scan complete\n");
7947d3e0 1985 ieee80211_scan_completed(hwsim->hw, &info);
e8261171
JB		 1986 hwsim->hw_scan_request = NULL;
1987 hwsim->hw_scan_vif = NULL;
1988 hwsim->tmp_chan = NULL;
1989 mutex_unlock(&hwsim->mutex);
1990 return;
1991 }
1992
1993 wiphy_debug(hwsim->hw->wiphy, "hw scan %d MHz\n",
1994 req->channels[hwsim->scan_chan_idx]->center_freq);
1995
1996 hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
a8e828de
JB		 1997 if (hwsim->tmp_chan->flags & (IEEE80211_CHAN_NO_IR |
1998 IEEE80211_CHAN_RADAR) ||
e8261171
JB		 1999 !req->n_ssids) {
2000 dwell = 120;
2001 } else {
2002 dwell = 30;
2003 /* send probes */
2004 for (i = 0; i < req->n_ssids; i++) {
2005 struct sk_buff *probe;
12880d16 2006 struct ieee80211_mgmt *mgmt;
e8261171
JB		 2007
2008 probe = ieee80211_probereq_get(hwsim->hw,
339467b9 2009 hwsim->scan_addr,
e8261171
JB		 2010 req->ssids[i].ssid,
2011 req->ssids[i].ssid_len,
b9a9ada1 2012 req->ie_len);
e8261171
JB		 2013 if (!probe)
2014 continue;
b9a9ada1 2015
12880d16
JM		 2016 mgmt = (struct ieee80211_mgmt *) probe->data;
2017 memcpy(mgmt->da, req->bssid, ETH_ALEN);
2018 memcpy(mgmt->bssid, req->bssid, ETH_ALEN);
2019
b9a9ada1 2020 if (req->ie_len)
59ae1d12 2021 skb_put_data(probe, req->ie, req->ie_len);
b9a9ada1 2022
e8261171
JB		 2023 local_bh_disable();
2024 mac80211_hwsim_tx_frame(hwsim->hw, probe,
2025 hwsim->tmp_chan);
2026 local_bh_enable();
2027 }
2028 }
2029 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
2030 msecs_to_jiffies(dwell));
7f813ce1
JB		 2031 hwsim->survey_data[hwsim->scan_chan_idx].channel = hwsim->tmp_chan;
2032 hwsim->survey_data[hwsim->scan_chan_idx].start = jiffies;
2033 hwsim->survey_data[hwsim->scan_chan_idx].end =
2034 jiffies + msecs_to_jiffies(dwell);
e8261171
JB		 2035 hwsim->scan_chan_idx++;
2036 mutex_unlock(&hwsim->mutex);
69068036
JB		 2037}
2038
2039static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
a060bbfe 2040 struct ieee80211_vif *vif,
c56ef672 2041 struct ieee80211_scan_request *hw_req)
69068036 2042{
e8261171 2043 struct mac80211_hwsim_data *hwsim = hw->priv;
c56ef672 2044 struct cfg80211_scan_request *req = &hw_req->req;
69068036 2045
e8261171
JB		 2046 mutex_lock(&hwsim->mutex);
2047 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
2048 mutex_unlock(&hwsim->mutex);
2049 return -EBUSY;
2050 }
2051 hwsim->hw_scan_request = req;
2052 hwsim->hw_scan_vif = vif;
2053 hwsim->scan_chan_idx = 0;
339467b9
JB		 2054 if (req->flags & NL80211_SCAN_FLAG_RANDOM_ADDR)
2055 get_random_mask_addr(hwsim->scan_addr,
2056 hw_req->req.mac_addr,
2057 hw_req->req.mac_addr_mask);
2058 else
2059 memcpy(hwsim->scan_addr, vif->addr, ETH_ALEN);
7f813ce1 2060 memset(hwsim->survey_data, 0, sizeof(hwsim->survey_data));
e8261171 2061 mutex_unlock(&hwsim->mutex);
69068036 2062
e8261171 2063 wiphy_debug(hw->wiphy, "hwsim hw_scan request\n");
69068036 2064
e8261171 2065 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
69068036
JB		 2066
2067 return 0;
2068}
2069
e8261171
JB		 2070static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
2071 struct ieee80211_vif *vif)
2072{
2073 struct mac80211_hwsim_data *hwsim = hw->priv;
7947d3e0
AS		 2074 struct cfg80211_scan_info info = {
2075 .aborted = true,
2076 };
e8261171
JB		 2077
2078 wiphy_debug(hw->wiphy, "hwsim cancel_hw_scan\n");
2079
2080 cancel_delayed_work_sync(&hwsim->hw_scan);
2081
2082 mutex_lock(&hwsim->mutex);
7947d3e0 2083 ieee80211_scan_completed(hwsim->hw, &info);
e8261171
JB		 2084 hwsim->tmp_chan = NULL;
2085 hwsim->hw_scan_request = NULL;
2086 hwsim->hw_scan_vif = NULL;
2087 mutex_unlock(&hwsim->mutex);
2088}
2089
a344d677
JB		 2090static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw,
2091 struct ieee80211_vif *vif,
2092 const u8 *mac_addr)
f74cb0f7
LR		 2093{
2094 struct mac80211_hwsim_data *hwsim = hw->priv;
2095
2096 mutex_lock(&hwsim->mutex);
2097
2098 if (hwsim->scanning) {
2099 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
2100 goto out;
2101 }
2102
2103 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
339467b9
JB		 2104
2105 memcpy(hwsim->scan_addr, mac_addr, ETH_ALEN);
f74cb0f7 2106 hwsim->scanning = true;
7f813ce1 2107 memset(hwsim->survey_data, 0, sizeof(hwsim->survey_data));
f74cb0f7
LR		 2108
2109out:
2110 mutex_unlock(&hwsim->mutex);
2111}
2112
a344d677
JB		 2113static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw,
2114 struct ieee80211_vif *vif)
f74cb0f7
LR		 2115{
2116 struct mac80211_hwsim_data *hwsim = hw->priv;
2117
2118 mutex_lock(&hwsim->mutex);
2119
2120 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
23ff98fc 2121 hwsim->scanning = false;
93803b33 2122 eth_zero_addr(hwsim->scan_addr);
f74cb0f7
LR		 2123
2124 mutex_unlock(&hwsim->mutex);
2125}
2126
661ef475
JB		 2127static void hw_roc_start(struct work_struct *work)
2128{
2129 struct mac80211_hwsim_data *hwsim =
2130 container_of(work, struct mac80211_hwsim_data, roc_start.work);
2131
2132 mutex_lock(&hwsim->mutex);
2133
2134 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC begins\n");
2135 hwsim->tmp_chan = hwsim->roc_chan;
2136 ieee80211_ready_on_channel(hwsim->hw);
2137
2138 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->roc_done,
2139 msecs_to_jiffies(hwsim->roc_duration));
2140
2141 mutex_unlock(&hwsim->mutex);
2142}
2143
e8261171
JB		 2144static void hw_roc_done(struct work_struct *work)
2145{
2146 struct mac80211_hwsim_data *hwsim =
2147 container_of(work, struct mac80211_hwsim_data, roc_done.work);
2148
2149 mutex_lock(&hwsim->mutex);
2150 ieee80211_remain_on_channel_expired(hwsim->hw);
2151 hwsim->tmp_chan = NULL;
2152 mutex_unlock(&hwsim->mutex);
2153
2154 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC expired\n");
2155}
2156
2157static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
49884568 2158 struct ieee80211_vif *vif,
e8261171 2159 struct ieee80211_channel *chan,
d339d5ca
IP		 2160 int duration,
2161 enum ieee80211_roc_type type)
e8261171
JB		 2162{
2163 struct mac80211_hwsim_data *hwsim = hw->priv;
2164
2165 mutex_lock(&hwsim->mutex);
2166 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
2167 mutex_unlock(&hwsim->mutex);
2168 return -EBUSY;
2169 }
2170
661ef475
JB		 2171 hwsim->roc_chan = chan;
2172 hwsim->roc_duration = duration;
e8261171
JB		 2173 mutex_unlock(&hwsim->mutex);
2174
2175 wiphy_debug(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
2176 chan->center_freq, duration);
661ef475 2177 ieee80211_queue_delayed_work(hw, &hwsim->roc_start, HZ/50);
e8261171 2178
e8261171
JB		 2179 return 0;
2180}
2181
2182static int mac80211_hwsim_croc(struct ieee80211_hw *hw)
2183{
2184 struct mac80211_hwsim_data *hwsim = hw->priv;
2185
661ef475 2186 cancel_delayed_work_sync(&hwsim->roc_start);
e8261171
JB		 2187 cancel_delayed_work_sync(&hwsim->roc_done);
2188
2189 mutex_lock(&hwsim->mutex);
2190 hwsim->tmp_chan = NULL;
2191 mutex_unlock(&hwsim->mutex);
2192
2193 wiphy_debug(hw->wiphy, "hwsim ROC canceled\n");
2194
2195 return 0;
2196}
2197
2198static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
2199 struct ieee80211_chanctx_conf *ctx)
2200{
2201 hwsim_set_chanctx_magic(ctx);
4bf88530
JB		 2202 wiphy_debug(hw->wiphy,
2203 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2204 ctx->def.chan->center_freq, ctx->def.width,
2205 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 2206 return 0;
2207}
2208
2209static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
2210 struct ieee80211_chanctx_conf *ctx)
2211{
4bf88530
JB		 2212 wiphy_debug(hw->wiphy,
2213 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2214 ctx->def.chan->center_freq, ctx->def.width,
2215 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 2216 hwsim_check_chanctx_magic(ctx);
2217 hwsim_clear_chanctx_magic(ctx);
2218}
2219
2220static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
2221 struct ieee80211_chanctx_conf *ctx,
2222 u32 changed)
2223{
2224 hwsim_check_chanctx_magic(ctx);
4bf88530
JB		 2225 wiphy_debug(hw->wiphy,
2226 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2227 ctx->def.chan->center_freq, ctx->def.width,
2228 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 2229}
2230
2231static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
2232 struct ieee80211_vif *vif,
2233 struct ieee80211_chanctx_conf *ctx)
2234{
2235 hwsim_check_magic(vif);
2236 hwsim_check_chanctx_magic(ctx);
2237
2238 return 0;
2239}
2240
2241static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
2242 struct ieee80211_vif *vif,
2243 struct ieee80211_chanctx_conf *ctx)
2244{
2245 hwsim_check_magic(vif);
2246 hwsim_check_chanctx_magic(ctx);
2247}
2248
2155c3f8
BG		 2249static const char mac80211_hwsim_gstrings_stats[][ETH_GSTRING_LEN] = {
2250 "tx_pkts_nic",
2251 "tx_bytes_nic",
2252 "rx_pkts_nic",
2253 "rx_bytes_nic",
2254 "d_tx_dropped",
2255 "d_tx_failed",
2256 "d_ps_mode",
2257 "d_group",
2155c3f8
BG		 2258};
2259
2260#define MAC80211_HWSIM_SSTATS_LEN ARRAY_SIZE(mac80211_hwsim_gstrings_stats)
2261
2262static void mac80211_hwsim_get_et_strings(struct ieee80211_hw *hw,
2263 struct ieee80211_vif *vif,
2264 u32 sset, u8 *data)
2265{
2266 if (sset == ETH_SS_STATS)
2267 memcpy(data, *mac80211_hwsim_gstrings_stats,
2268 sizeof(mac80211_hwsim_gstrings_stats));
2269}
2270
2271static int mac80211_hwsim_get_et_sset_count(struct ieee80211_hw *hw,
2272 struct ieee80211_vif *vif, int sset)
2273{
2274 if (sset == ETH_SS_STATS)
2275 return MAC80211_HWSIM_SSTATS_LEN;
2276 return 0;
2277}
2278
2279static void mac80211_hwsim_get_et_stats(struct ieee80211_hw *hw,
2280 struct ieee80211_vif *vif,
2281 struct ethtool_stats *stats, u64 *data)
2282{
2283 struct mac80211_hwsim_data *ar = hw->priv;
2284 int i = 0;
2285
2286 data[i++] = ar->tx_pkts;
2287 data[i++] = ar->tx_bytes;
2288 data[i++] = ar->rx_pkts;
2289 data[i++] = ar->rx_bytes;
2290 data[i++] = ar->tx_dropped;
2291 data[i++] = ar->tx_failed;
2292 data[i++] = ar->ps;
2293 data[i++] = ar->group;
2155c3f8
BG		 2294
2295 WARN_ON(i != MAC80211_HWSIM_SSTATS_LEN);
2296}
2297
246ad56e
JB		 2298#define HWSIM_COMMON_OPS \
2299 .tx = mac80211_hwsim_tx, \
2300 .start = mac80211_hwsim_start, \
2301 .stop = mac80211_hwsim_stop, \
2302 .add_interface = mac80211_hwsim_add_interface, \
2303 .change_interface = mac80211_hwsim_change_interface, \
2304 .remove_interface = mac80211_hwsim_remove_interface, \
2305 .config = mac80211_hwsim_config, \
2306 .configure_filter = mac80211_hwsim_configure_filter, \
2307 .bss_info_changed = mac80211_hwsim_bss_info_changed, \
2308 .sta_add = mac80211_hwsim_sta_add, \
2309 .sta_remove = mac80211_hwsim_sta_remove, \
2310 .sta_notify = mac80211_hwsim_sta_notify, \
2311 .set_tim = mac80211_hwsim_set_tim, \
2312 .conf_tx = mac80211_hwsim_conf_tx, \
2313 .get_survey = mac80211_hwsim_get_survey, \
2314 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd) \
2315 .ampdu_action = mac80211_hwsim_ampdu_action, \
2316 .flush = mac80211_hwsim_flush, \
2317 .get_tsf = mac80211_hwsim_get_tsf, \
2318 .set_tsf = mac80211_hwsim_set_tsf, \
2319 .get_et_sset_count = mac80211_hwsim_get_et_sset_count, \
2320 .get_et_stats = mac80211_hwsim_get_et_stats, \
2321 .get_et_strings = mac80211_hwsim_get_et_strings,
2322
38ed5048 2323static const struct ieee80211_ops mac80211_hwsim_ops = {
246ad56e 2324 HWSIM_COMMON_OPS
f74cb0f7
LR		 2325 .sw_scan_start = mac80211_hwsim_sw_scan,
2326 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
acc1e7a3
JM		 2327};
2328
246ad56e
JB		 2329static const struct ieee80211_ops mac80211_hwsim_mchan_ops = {
2330 HWSIM_COMMON_OPS
2331 .hw_scan = mac80211_hwsim_hw_scan,
2332 .cancel_hw_scan = mac80211_hwsim_cancel_hw_scan,
2333 .sw_scan_start = NULL,
2334 .sw_scan_complete = NULL,
2335 .remain_on_channel = mac80211_hwsim_roc,
2336 .cancel_remain_on_channel = mac80211_hwsim_croc,
2337 .add_chanctx = mac80211_hwsim_add_chanctx,
2338 .remove_chanctx = mac80211_hwsim_remove_chanctx,
2339 .change_chanctx = mac80211_hwsim_change_chanctx,
2340 .assign_vif_chanctx = mac80211_hwsim_assign_vif_chanctx,
2341 .unassign_vif_chanctx = mac80211_hwsim_unassign_vif_chanctx,
2342};
acc1e7a3 2343
62759361
JR		 2344struct hwsim_new_radio_params {
2345 unsigned int channels;
2346 const char *reg_alpha2;
2347 const struct ieee80211_regdomain *regd;
2348 bool reg_strict;
2349 bool p2p_device;
2350 bool use_chanctx;
2351 bool destroy_on_close;
2352 const char *hwname;
2353 bool no_vif;
2354};
2355
2356static void hwsim_mcast_config_msg(struct sk_buff *mcast_skb,
2357 struct genl_info *info)
2358{
2359 if (info)
92c14d9b
JB		 2360 genl_notify(&hwsim_genl_family, mcast_skb, info,
2361 HWSIM_MCGRP_CONFIG, GFP_KERNEL);
62759361
JR		 2362 else
2363 genlmsg_multicast(&hwsim_genl_family, mcast_skb, 0,
2364 HWSIM_MCGRP_CONFIG, GFP_KERNEL);
2365}
2366
c449981c
PF		 2367static int append_radio_msg(struct sk_buff *skb, int id,
2368 struct hwsim_new_radio_params *param)
62759361 2369{
62759361
JR		 2370 int ret;
2371
62759361
JR		 2372 ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
2373 if (ret < 0)
c449981c 2374 return ret;
62759361
JR		 2375
2376 if (param->channels) {
2377 ret = nla_put_u32(skb, HWSIM_ATTR_CHANNELS, param->channels);
2378 if (ret < 0)
c449981c 2379 return ret;
62759361
JR		 2380 }
2381
2382 if (param->reg_alpha2) {
2383 ret = nla_put(skb, HWSIM_ATTR_REG_HINT_ALPHA2, 2,
2384 param->reg_alpha2);
2385 if (ret < 0)
c449981c 2386 return ret;
62759361
JR		 2387 }
2388
2389 if (param->regd) {
2390 int i;
2391
5875755c
JB		 2392 for (i = 0; i < ARRAY_SIZE(hwsim_world_regdom_custom); i++) {
2393 if (hwsim_world_regdom_custom[i] != param->regd)
2394 continue;
62759361 2395
62759361
JR		 2396 ret = nla_put_u32(skb, HWSIM_ATTR_REG_CUSTOM_REG, i);
2397 if (ret < 0)
c449981c 2398 return ret;
5875755c 2399 break;
62759361
JR		 2400 }
2401 }
2402
2403 if (param->reg_strict) {
2404 ret = nla_put_flag(skb, HWSIM_ATTR_REG_STRICT_REG);
2405 if (ret < 0)
c449981c 2406 return ret;
62759361
JR		 2407 }
2408
2409 if (param->p2p_device) {
2410 ret = nla_put_flag(skb, HWSIM_ATTR_SUPPORT_P2P_DEVICE);
2411 if (ret < 0)
c449981c 2412 return ret;
62759361
JR		 2413 }
2414
2415 if (param->use_chanctx) {
2416 ret = nla_put_flag(skb, HWSIM_ATTR_USE_CHANCTX);
2417 if (ret < 0)
c449981c 2418 return ret;
62759361
JR		 2419 }
2420
2421 if (param->hwname) {
2422 ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME,
2423 strlen(param->hwname), param->hwname);
2424 if (ret < 0)
c449981c 2425 return ret;
62759361
JR		 2426 }
2427
c449981c 2428 return 0;
62759361
JR		 2429}
2430
c449981c 2431static void hwsim_mcast_new_radio(int id, struct genl_info *info,
62759361
JR		 2432 struct hwsim_new_radio_params *param)
2433{
2434 struct sk_buff *mcast_skb;
c449981c 2435 void *data;
62759361 2436
c449981c 2437 mcast_skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
62759361
JR		 2438 if (!mcast_skb)
2439 return;
2440
c449981c
PF		 2441 data = genlmsg_put(mcast_skb, 0, 0, &hwsim_genl_family, 0,
2442 HWSIM_CMD_NEW_RADIO);
2443 if (!data)
2444 goto out_err;
2445
2446 if (append_radio_msg(mcast_skb, id, param) < 0)
2447 goto out_err;
2448
2449 genlmsg_end(mcast_skb, data);
2450
62759361 2451 hwsim_mcast_config_msg(mcast_skb, info);
c449981c
PF		 2452 return;
2453
2454out_err:
2455 genlmsg_cancel(mcast_skb, data);
2456 nlmsg_free(mcast_skb);
62759361
JR		 2457}
2458
2459static int mac80211_hwsim_new_radio(struct genl_info *info,
2460 struct hwsim_new_radio_params *param)
acc1e7a3 2461{
de0421d5
JB		 2462 int err;
2463 u8 addr[ETH_ALEN];
e4afb603 2464 struct mac80211_hwsim_data *data;
de0421d5 2465 struct ieee80211_hw *hw;
57fbcce3 2466 enum nl80211_band band;
de0421d5 2467 const struct ieee80211_ops *ops = &mac80211_hwsim_ops;
100cb9ff 2468 struct net *net;
de0421d5 2469 int idx;
0e057d73 2470
62759361 2471 if (WARN_ON(param->channels > 1 && !param->use_chanctx))
361c3e04
LC		 2472 return -EINVAL;
2473
0e057d73 2474 spin_lock_bh(&hwsim_radio_lock);
de0421d5 2475 idx = hwsim_radio_idx++;
0e057d73
JB		 2476 spin_unlock_bh(&hwsim_radio_lock);
2477
62759361 2478 if (param->use_chanctx)
de0421d5 2479 ops = &mac80211_hwsim_mchan_ops;
62759361 2480 hw = ieee80211_alloc_hw_nm(sizeof(*data), ops, param->hwname);
de0421d5
JB		 2481 if (!hw) {
2482 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw failed\n");
2483 err = -ENOMEM;
2484 goto failed;
2485 }
100cb9ff 2486
f7d3b4f5
AZ		 2487 /* ieee80211_alloc_hw_nm may have used a default name */
2488 param->hwname = wiphy_name(hw->wiphy);
2489
100cb9ff
MW		 2490 if (info)
2491 net = genl_info_net(info);
2492 else
2493 net = &init_net;
2494 wiphy_net_set(hw->wiphy, net);
2495
de0421d5
JB		 2496 data = hw->priv;
2497 data->hw = hw;
acc1e7a3 2498
de0421d5
JB		 2499 data->dev = device_create(hwsim_class, NULL, 0, hw, "hwsim%d", idx);
2500 if (IS_ERR(data->dev)) {
2501 printk(KERN_DEBUG
2502 "mac80211_hwsim: device_create failed (%ld)\n",
2503 PTR_ERR(data->dev));
2504 err = -ENOMEM;
2505 goto failed_drvdata;
2506 }
2507 data->dev->driver = &mac80211_hwsim_driver.driver;
2508 err = device_bind_driver(data->dev);
2509 if (err != 0) {
2510 printk(KERN_DEBUG "mac80211_hwsim: device_bind_driver failed (%d)\n",
2511 err);
805dbe17 2512 goto failed_bind;
acc1e7a3 2513 }
acc1e7a3 2514
de0421d5 2515 skb_queue_head_init(&data->pending);
acc1e7a3 2516
de0421d5 2517 SET_IEEE80211_DEV(hw, data->dev);
93803b33 2518 eth_zero_addr(addr);
de0421d5
JB		 2519 addr[0] = 0x02;
2520 addr[3] = idx >> 8;
2521 addr[4] = idx;
2522 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
2523 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
2524 data->addresses[1].addr[0] |= 0x40;
2525 hw->wiphy->n_addresses = 2;
2526 hw->wiphy->addresses = data->addresses;
fc6971d4 2527
62759361
JR		 2528 data->channels = param->channels;
2529 data->use_chanctx = param->use_chanctx;
bc791098 2530 data->idx = idx;
62759361
JR		 2531 data->destroy_on_close = param->destroy_on_close;
2532 if (info)
2533 data->portid = info->snd_portid;
fc6971d4 2534
361c3e04 2535 if (data->use_chanctx) {
de0421d5
JB		 2536 hw->wiphy->max_scan_ssids = 255;
2537 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
2538 hw->wiphy->max_remain_on_channel_duration = 1000;
de0421d5 2539 hw->wiphy->iface_combinations = &data->if_combination;
62759361 2540 if (param->p2p_device)
8c66a3d9
JB		 2541 data->if_combination = hwsim_if_comb_p2p_dev[0];
2542 else
2543 data->if_combination = hwsim_if_comb[0];
f7736f50
IP		 2544 hw->wiphy->n_iface_combinations = 1;
2545 /* For channels > 1 DFS is not allowed */
2546 data->if_combination.radar_detect_widths = 0;
b59ec8dd 2547 data->if_combination.num_different_channels = data->channels;
62759361 2548 } else if (param->p2p_device) {
8c66a3d9
JB		 2549 hw->wiphy->iface_combinations = hwsim_if_comb_p2p_dev;
2550 hw->wiphy->n_iface_combinations =
2551 ARRAY_SIZE(hwsim_if_comb_p2p_dev);
de0421d5
JB		 2552 } else {
2553 hw->wiphy->iface_combinations = hwsim_if_comb;
2554 hw->wiphy->n_iface_combinations = ARRAY_SIZE(hwsim_if_comb);
2555 }
acc1e7a3 2556
661ef475 2557 INIT_DELAYED_WORK(&data->roc_start, hw_roc_start);
de0421d5
JB		 2558 INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
2559 INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
7882513b 2560
de0421d5
JB		 2561 hw->queues = 5;
2562 hw->offchannel_tx_hw_queue = 4;
2563 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2564 BIT(NL80211_IFTYPE_AP) |
2565 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2566 BIT(NL80211_IFTYPE_P2P_GO) |
2567 BIT(NL80211_IFTYPE_ADHOC) |
8c66a3d9
JB		 2568 BIT(NL80211_IFTYPE_MESH_POINT);
2569
62759361 2570 if (param->p2p_device)
8c66a3d9 2571 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_DEVICE);
fc6971d4 2572
30686bf7
JB		 2573 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
2574 ieee80211_hw_set(hw, CHANCTX_STA_CSA);
2575 ieee80211_hw_set(hw, SUPPORTS_HT_CCK_RATES);
2576 ieee80211_hw_set(hw, QUEUE_CONTROL);
2577 ieee80211_hw_set(hw, WANT_MONITOR_VIF);
2578 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
2579 ieee80211_hw_set(hw, MFP_CAPABLE);
2580 ieee80211_hw_set(hw, SIGNAL_DBM);
33c2f538 2581 ieee80211_hw_set(hw, TDLS_WIDER_BW);
de0421d5 2582 if (rctbl)
30686bf7 2583 ieee80211_hw_set(hw, SUPPORTS_RC_TABLE);
fc6971d4 2584
de0421d5
JB		 2585 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2586 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
0037db63
AO		 2587 WIPHY_FLAG_AP_UAPSD |
2588 WIPHY_FLAG_HAS_CHANNEL_SWITCH;
0d8614b4
EP		 2589 hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR |
2590 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
2591 NL80211_FEATURE_STATIC_SMPS |
339467b9
JB		 2592 NL80211_FEATURE_DYNAMIC_SMPS |
2593 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
00eeccc4 2594 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS);
fc6971d4 2595
de0421d5
JB		 2596 /* ask mac80211 to reserve space for magic */
2597 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
2598 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
2599 hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
fc6971d4 2600
de0421d5
JB		 2601 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
2602 sizeof(hwsim_channels_2ghz));
2603 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
2604 sizeof(hwsim_channels_5ghz));
2605 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
7882513b 2606
57fbcce3 2607 for (band = NL80211_BAND_2GHZ; band < NUM_NL80211_BANDS; band++) {
de0421d5
JB		 2608 struct ieee80211_supported_band *sband = &data->bands[band];
2609 switch (band) {
57fbcce3 2610 case NL80211_BAND_2GHZ:
de0421d5
JB		 2611 sband->channels = data->channels_2ghz;
2612 sband->n_channels = ARRAY_SIZE(hwsim_channels_2ghz);
2613 sband->bitrates = data->rates;
2614 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
2615 break;
57fbcce3 2616 case NL80211_BAND_5GHZ:
de0421d5
JB		 2617 sband->channels = data->channels_5ghz;
2618 sband->n_channels = ARRAY_SIZE(hwsim_channels_5ghz);
2619 sband->bitrates = data->rates + 4;
2620 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
f33f8483
IP		 2621
2622 sband->vht_cap.vht_supported = true;
2623 sband->vht_cap.cap =
2624 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
2625 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
2626 IEEE80211_VHT_CAP_RXLDPC |
2627 IEEE80211_VHT_CAP_SHORT_GI_80 |
2628 IEEE80211_VHT_CAP_SHORT_GI_160 |
2629 IEEE80211_VHT_CAP_TXSTBC |
2630 IEEE80211_VHT_CAP_RXSTBC_1 |
2631 IEEE80211_VHT_CAP_RXSTBC_2 |
2632 IEEE80211_VHT_CAP_RXSTBC_3 |
2633 IEEE80211_VHT_CAP_RXSTBC_4 |
2634 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
2635 sband->vht_cap.vht_mcs.rx_mcs_map =
8aca9b29
IP		 2636 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
2637 IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 |
f33f8483 2638 IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
8aca9b29
IP		 2639 IEEE80211_VHT_MCS_SUPPORT_0_9 << 6 |
2640 IEEE80211_VHT_MCS_SUPPORT_0_9 << 8 |
f33f8483
IP		 2641 IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
2642 IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
8aca9b29 2643 IEEE80211_VHT_MCS_SUPPORT_0_9 << 14);
f33f8483
IP		 2644 sband->vht_cap.vht_mcs.tx_mcs_map =
2645 sband->vht_cap.vht_mcs.rx_mcs_map;
de0421d5
JB		 2646 break;
2647 default:
2648 continue;
2649 }
acc1e7a3 2650
de0421d5
JB		 2651 sband->ht_cap.ht_supported = true;
2652 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
2653 IEEE80211_HT_CAP_GRN_FLD |
e49786db 2654 IEEE80211_HT_CAP_SGI_20 |
de0421d5
JB		 2655 IEEE80211_HT_CAP_SGI_40 |
2656 IEEE80211_HT_CAP_DSSSCCK40;
2657 sband->ht_cap.ampdu_factor = 0x3;
2658 sband->ht_cap.ampdu_density = 0x6;
2659 memset(&sband->ht_cap.mcs, 0,
2660 sizeof(sband->ht_cap.mcs));
2661 sband->ht_cap.mcs.rx_mask[0] = 0xff;
2662 sband->ht_cap.mcs.rx_mask[1] = 0xff;
2663 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
fc6971d4 2664
de0421d5 2665 hw->wiphy->bands[band] = sband;
de0421d5 2666 }
acc1e7a3 2667
de0421d5
JB		 2668 /* By default all radios belong to the first group */
2669 data->group = 1;
2670 mutex_init(&data->mutex);
fc6971d4 2671
100cb9ff
MW		 2672 data->netgroup = hwsim_net_get_netgroup(net);
2673
de0421d5
JB		 2674 /* Enable frame retransmissions for lossy channels */
2675 hw->max_rates = 4;
2676 hw->max_rate_tries = 11;
fc6971d4 2677
d5d011b4
JM		 2678 hw->wiphy->vendor_commands = mac80211_hwsim_vendor_commands;
2679 hw->wiphy->n_vendor_commands =
2680 ARRAY_SIZE(mac80211_hwsim_vendor_commands);
2681 hw->wiphy->vendor_events = mac80211_hwsim_vendor_events;
2682 hw->wiphy->n_vendor_events = ARRAY_SIZE(mac80211_hwsim_vendor_events);
2683
62759361 2684 if (param->reg_strict)
26b0e411 2685 hw->wiphy->regulatory_flags |= REGULATORY_STRICT_REG;
62759361 2686 if (param->regd) {
93d638d4 2687 data->regd = param->regd;
26b0e411 2688 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
62759361 2689 wiphy_apply_custom_regulatory(hw->wiphy, param->regd);
26b0e411
JB		 2690 /* give the regulatory workqueue a chance to run */
2691 schedule_timeout_interruptible(1);
2692 }
fc6971d4 2693
62759361 2694 if (param->no_vif)
30686bf7 2695 ieee80211_hw_set(hw, NO_AUTO_VIF);
9a0cb89a 2696
ae44b502
AZ		 2697 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);
2698
de0421d5
JB		 2699 err = ieee80211_register_hw(hw);
2700 if (err < 0) {
2701 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_register_hw failed (%d)\n",
2702 err);
2703 goto failed_hw;
2704 }
fc6971d4 2705
de0421d5 2706 wiphy_debug(hw->wiphy, "hwaddr %pM registered\n", hw->wiphy->perm_addr);
fc6971d4 2707
93d638d4
PF		 2708 if (param->reg_alpha2) {
2709 data->alpha2[0] = param->reg_alpha2[0];
2710 data->alpha2[1] = param->reg_alpha2[1];
62759361 2711 regulatory_hint(hw->wiphy, param->reg_alpha2);
93d638d4 2712 }
7882513b 2713
de0421d5
JB		 2714 data->debugfs = debugfs_create_dir("hwsim", hw->wiphy->debugfsdir);
2715 debugfs_create_file("ps", 0666, data->debugfs, data, &hwsim_fops_ps);
2716 debugfs_create_file("group", 0666, data->debugfs, data,
2717 &hwsim_fops_group);
361c3e04 2718 if (!data->use_chanctx)
de0421d5
JB		 2719 debugfs_create_file("dfs_simulate_radar", 0222,
2720 data->debugfs,
2721 data, &hwsim_simulate_radar);
fc6971d4 2722
de0421d5
JB		 2723 tasklet_hrtimer_init(&data->beacon_timer,
2724 mac80211_hwsim_beacon,
8fbcfeb8 2725 CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
fc6971d4 2726
de0421d5
JB		 2727 spin_lock_bh(&hwsim_radio_lock);
2728 list_add_tail(&data->list, &hwsim_radios);
2729 spin_unlock_bh(&hwsim_radio_lock);
fc6971d4 2730
62759361 2731 if (idx > 0)
c449981c 2732 hwsim_mcast_new_radio(idx, info, param);
62759361 2733
bc791098 2734 return idx;
fc6971d4 2735
de0421d5 2736failed_hw:
805dbe17
JM		 2737 device_release_driver(data->dev);
2738failed_bind:
de0421d5
JB		 2739 device_unregister(data->dev);
2740failed_drvdata:
2741 ieee80211_free_hw(hw);
2742failed:
2743 return err;
fc6971d4
JM		 2744}
2745
579a05f2
JR		 2746static void hwsim_mcast_del_radio(int id, const char *hwname,
2747 struct genl_info *info)
fc6971d4 2748{
579a05f2
JR		 2749 struct sk_buff *skb;
2750 void *data;
2751 int ret;
2752
2753 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
2754 if (!skb)
2755 return;
2756
2757 data = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
2758 HWSIM_CMD_DEL_RADIO);
2759 if (!data)
2760 goto error;
2761
2762 ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
2763 if (ret < 0)
2764 goto error;
2765
b9995f83
JR		 2766 ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME, strlen(hwname),
2767 hwname);
2768 if (ret < 0)
2769 goto error;
579a05f2
JR		 2770
2771 genlmsg_end(skb, data);
2772
2773 hwsim_mcast_config_msg(skb, info);
2774
2775 return;
2776
2777error:
2778 nlmsg_free(skb);
2779}
2780
2781static void mac80211_hwsim_del_radio(struct mac80211_hwsim_data *data,
2782 const char *hwname,
2783 struct genl_info *info)
2784{
2785 hwsim_mcast_del_radio(data->idx, hwname, info);
de0421d5
JB		 2786 debugfs_remove_recursive(data->debugfs);
2787 ieee80211_unregister_hw(data->hw);
2788 device_release_driver(data->dev);
2789 device_unregister(data->dev);
2790 ieee80211_free_hw(data->hw);
fc6971d4
JM		 2791}
2792
93d638d4
PF		 2793static int mac80211_hwsim_get_radio(struct sk_buff *skb,
2794 struct mac80211_hwsim_data *data,
2795 u32 portid, u32 seq,
2796 struct netlink_callback *cb, int flags)
2797{
2798 void *hdr;
2799 struct hwsim_new_radio_params param = { };
2800 int res = -EMSGSIZE;
2801
2802 hdr = genlmsg_put(skb, portid, seq, &hwsim_genl_family, flags,
2803 HWSIM_CMD_GET_RADIO);
2804 if (!hdr)
2805 return -EMSGSIZE;
2806
2807 if (cb)
2808 genl_dump_check_consistent(cb, hdr, &hwsim_genl_family);
2809
b0ad5e8b
PF		 2810 if (data->alpha2[0] && data->alpha2[1])
2811 param.reg_alpha2 = data->alpha2;
2812
93d638d4
PF		 2813 param.reg_strict = !!(data->hw->wiphy->regulatory_flags &
2814 REGULATORY_STRICT_REG);
2815 param.p2p_device = !!(data->hw->wiphy->interface_modes &
2816 BIT(NL80211_IFTYPE_P2P_DEVICE));
2817 param.use_chanctx = data->use_chanctx;
2818 param.regd = data->regd;
2819 param.channels = data->channels;
2820 param.hwname = wiphy_name(data->hw->wiphy);
2821
2822 res = append_radio_msg(skb, data->idx, &param);
2823 if (res < 0)
2824 goto out_err;
2825
053c095a
JB		 2826 genlmsg_end(skb, hdr);
2827 return 0;
93d638d4
PF		 2828
2829out_err:
2830 genlmsg_cancel(skb, hdr);
2831 return res;
2832}
2833
de0421d5 2834static void mac80211_hwsim_free(void)
fc6971d4 2835{
de0421d5 2836 struct mac80211_hwsim_data *data;
fc6971d4 2837
de0421d5
JB		 2838 spin_lock_bh(&hwsim_radio_lock);
2839 while ((data = list_first_entry_or_null(&hwsim_radios,
2840 struct mac80211_hwsim_data,
2841 list))) {
2842 list_del(&data->list);
2843 spin_unlock_bh(&hwsim_radio_lock);
b9995f83
JR		 2844 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
2845 NULL);
de0421d5 2846 spin_lock_bh(&hwsim_radio_lock);
fc6971d4 2847 }
de0421d5
JB		 2848 spin_unlock_bh(&hwsim_radio_lock);
2849 class_destroy(hwsim_class);
bba05e3d
JD		 2850}
2851
de0421d5
JB		 2852static const struct net_device_ops hwsim_netdev_ops = {
2853 .ndo_start_xmit = hwsim_mon_xmit,
de0421d5
JB		 2854 .ndo_set_mac_address = eth_mac_addr,
2855 .ndo_validate_addr = eth_validate_addr,
2856};
73606d00 2857
de0421d5 2858static void hwsim_mon_setup(struct net_device *dev)
73606d00 2859{
de0421d5 2860 dev->netdev_ops = &hwsim_netdev_ops;
cf124db5 2861 dev->needs_free_netdev = true;
de0421d5 2862 ether_setup(dev);
3db6da1f 2863 dev->priv_flags |= IFF_NO_QUEUE;
de0421d5 2864 dev->type = ARPHRD_IEEE80211_RADIOTAP;
93803b33 2865 eth_zero_addr(dev->dev_addr);
de0421d5 2866 dev->dev_addr[0] = 0x12;
73606d00
DW		 2867}
2868
9ddd12af 2869static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(const u8 *addr)
7882513b
JL		 2870{
2871 struct mac80211_hwsim_data *data;
2872 bool _found = false;
2873
2874 spin_lock_bh(&hwsim_radio_lock);
2875 list_for_each_entry(data, &hwsim_radios, list) {
354210f8 2876 if (memcmp(data->addresses[1].addr, addr, ETH_ALEN) == 0) {
7882513b
JL		 2877 _found = true;
2878 break;
2879 }
2880 }
2881 spin_unlock_bh(&hwsim_radio_lock);
2882
2883 if (!_found)
2884 return NULL;
2885
2886 return data;
2887}
2888
f21e4d8e
MW		 2889static void hwsim_register_wmediumd(struct net *net, u32 portid)
2890{
2891 struct mac80211_hwsim_data *data;
2892
2893 hwsim_net_set_wmediumd(net, portid);
2894
2895 spin_lock_bh(&hwsim_radio_lock);
2896 list_for_each_entry(data, &hwsim_radios, list) {
2897 if (data->netgroup == hwsim_net_get_netgroup(net))
2898 data->wmediumd = portid;
2899 }
2900 spin_unlock_bh(&hwsim_radio_lock);
2901}
2902
7882513b
JL		 2903static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
2904 struct genl_info *info)
2905{
2906
2907 struct ieee80211_hdr *hdr;
2908 struct mac80211_hwsim_data *data2;
2909 struct ieee80211_tx_info *txi;
2910 struct hwsim_tx_rate *tx_attempts;
959eb2fd 2911 u64 ret_skb_cookie;
7882513b 2912 struct sk_buff *skb, *tmp;
9ddd12af 2913 const u8 *src;
7882513b 2914 unsigned int hwsim_flags;
7882513b
JL		 2915 int i;
2916 bool found = false;
2917
2918 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
9ddd12af
JB		 2919 !info->attrs[HWSIM_ATTR_FLAGS] ||
2920 !info->attrs[HWSIM_ATTR_COOKIE] ||
62397da5 2921 !info->attrs[HWSIM_ATTR_SIGNAL] ||
9ddd12af 2922 !info->attrs[HWSIM_ATTR_TX_INFO])
7882513b
JL		 2923 goto out;
2924
9ddd12af 2925 src = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
7882513b 2926 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
959eb2fd 2927 ret_skb_cookie = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
7882513b
JL		 2928
2929 data2 = get_hwsim_data_ref_from_addr(src);
9ddd12af 2930 if (!data2)
7882513b
JL		 2931 goto out;
2932
f21e4d8e
MW		 2933 if (hwsim_net_get_netgroup(genl_info_net(info)) != data2->netgroup)
2934 goto out;
2935
2936 if (info->snd_portid != data2->wmediumd)
2937 goto out;
2938
7882513b
JL		 2939 /* look for the skb matching the cookie passed back from user */
2940 skb_queue_walk_safe(&data2->pending, skb, tmp) {
959eb2fd
JB		 2941 u64 skb_cookie;
2942
2943 txi = IEEE80211_SKB_CB(skb);
2944 skb_cookie = (u64)(uintptr_t)txi->rate_driver_data[0];
2945
2946 if (skb_cookie == ret_skb_cookie) {
7882513b
JL		 2947 skb_unlink(skb, &data2->pending);
2948 found = true;
2949 break;
2950 }
2951 }
2952
2953 /* not found */
2954 if (!found)
2955 goto out;
2956
2957 /* Tx info received because the frame was broadcasted on user space,
2958 so we get all the necessary info: tx attempts and skb control buff */
2959
2960 tx_attempts = (struct hwsim_tx_rate *)nla_data(
2961 info->attrs[HWSIM_ATTR_TX_INFO]);
2962
2963 /* now send back TX status */
2964 txi = IEEE80211_SKB_CB(skb);
2965
7882513b
JL		 2966 ieee80211_tx_info_clear_status(txi);
2967
2968 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
2969 txi->status.rates[i].idx = tx_attempts[i].idx;
2970 txi->status.rates[i].count = tx_attempts[i].count;
2971 /*txi->status.rates[i].flags = 0;*/
2972 }
2973
2974 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
2975
2976 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
2977 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
2978 if (skb->len >= 16) {
2979 hdr = (struct ieee80211_hdr *) skb->data;
c0e30763 2980 mac80211_hwsim_monitor_ack(data2->channel,
e8261171 2981 hdr->addr2);
7882513b 2982 }
06cf5c4c 2983 txi->flags |= IEEE80211_TX_STAT_ACK;
7882513b
JL		 2984 }
2985 ieee80211_tx_status_irqsafe(data2->hw, skb);
2986 return 0;
2987out:
2988 return -EINVAL;
2989
2990}
2991
2992static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
2993 struct genl_info *info)
2994{
e8261171 2995 struct mac80211_hwsim_data *data2;
7882513b 2996 struct ieee80211_rx_status rx_status;
9ddd12af 2997 const u8 *dst;
7882513b 2998 int frame_data_len;
9ddd12af 2999 void *frame_data;
7882513b
JL		 3000 struct sk_buff *skb = NULL;
3001
3002 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
e8261171
JB		 3003 !info->attrs[HWSIM_ATTR_FRAME] ||
3004 !info->attrs[HWSIM_ATTR_RX_RATE] ||
3005 !info->attrs[HWSIM_ATTR_SIGNAL])
7882513b
JL		 3006 goto out;
3007
9ddd12af 3008 dst = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
7882513b 3009 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
9ddd12af 3010 frame_data = (void *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
7882513b
JL		 3011
3012 /* Allocate new skb here */
3013 skb = alloc_skb(frame_data_len, GFP_KERNEL);
3014 if (skb == NULL)
3015 goto err;
3016
9ddd12af 3017 if (frame_data_len > IEEE80211_MAX_DATA_LEN)
7882513b
JL		 3018 goto err;
3019
9ddd12af 3020 /* Copy the data */
59ae1d12 3021 skb_put_data(skb, frame_data, frame_data_len);
7882513b 3022
9ddd12af
JB		 3023 data2 = get_hwsim_data_ref_from_addr(dst);
3024 if (!data2)
7882513b
JL		 3025 goto out;
3026
f21e4d8e
MW		 3027 if (hwsim_net_get_netgroup(genl_info_net(info)) != data2->netgroup)
3028 goto out;
3029
3030 if (info->snd_portid != data2->wmediumd)
3031 goto out;
3032
7882513b
JL		 3033 /* check if radio is configured properly */
3034
e8261171 3035 if (data2->idle || !data2->started)
7882513b
JL		 3036 goto out;
3037
9ddd12af 3038 /* A frame is received from user space */
7882513b 3039 memset(&rx_status, 0, sizeof(rx_status));
641cf2a5
AW		 3040 if (info->attrs[HWSIM_ATTR_FREQ]) {
3041 /* throw away off-channel packets, but allow both the temporary
3042 * ("hw" scan/remain-on-channel) and regular channel, since the
3043 * internal datapath also allows this
3044 */
3045 mutex_lock(&data2->mutex);
3046 rx_status.freq = nla_get_u32(info->attrs[HWSIM_ATTR_FREQ]);
3047
3048 if (rx_status.freq != data2->channel->center_freq &&
3049 (!data2->tmp_chan ||
3050 rx_status.freq != data2->tmp_chan->center_freq)) {
3051 mutex_unlock(&data2->mutex);
3052 goto out;
3053 }
3054 mutex_unlock(&data2->mutex);
3055 } else {
3056 rx_status.freq = data2->channel->center_freq;
3057 }
3058
7882513b
JL		 3059 rx_status.band = data2->channel->band;
3060 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
3061 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
3062
3063 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
2155c3f8
BG		 3064 data2->rx_pkts++;
3065 data2->rx_bytes += skb->len;
7882513b
JL		 3066 ieee80211_rx_irqsafe(data2->hw, skb);
3067
3068 return 0;
3069err:
c393862f 3070 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 3071out:
3072 dev_kfree_skb(skb);
3073 return -EINVAL;
3074}
3075
3076static int hwsim_register_received_nl(struct sk_buff *skb_2,
3077 struct genl_info *info)
3078{
f21e4d8e 3079 struct net *net = genl_info_net(info);
c5ac0854
JB		 3080 struct mac80211_hwsim_data *data;
3081 int chans = 1;
3082
3083 spin_lock_bh(&hwsim_radio_lock);
3084 list_for_each_entry(data, &hwsim_radios, list)
3085 chans = max(chans, data->channels);
3086 spin_unlock_bh(&hwsim_radio_lock);
3087
3088 /* In the future we should revise the userspace API and allow it
3089 * to set a flag that it does support multi-channel, then we can
3090 * let this pass conditionally on the flag.
3091 * For current userspace, prohibit it since it won't work right.
3092 */
3093 if (chans > 1)
3094 return -EOPNOTSUPP;
3095
f21e4d8e 3096 if (hwsim_net_get_wmediumd(net))
85ca8fc7 3097 return -EBUSY;
7882513b 3098
f21e4d8e 3099 hwsim_register_wmediumd(net, info->snd_portid);
7882513b
JL		 3100
3101 printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
15e47304 3102 "switching to wmediumd mode with pid %d\n", info->snd_portid);
7882513b
JL		 3103
3104 return 0;
7882513b
JL		 3105}
3106
62759361 3107static int hwsim_new_radio_nl(struct sk_buff *msg, struct genl_info *info)
bc791098 3108{
62759361 3109 struct hwsim_new_radio_params param = { 0 };
ff4dd73d 3110 const char *hwname = NULL;
62759361
JR		 3111
3112 param.reg_strict = info->attrs[HWSIM_ATTR_REG_STRICT_REG];
3113 param.p2p_device = info->attrs[HWSIM_ATTR_SUPPORT_P2P_DEVICE];
3114 param.channels = channels;
3115 param.destroy_on_close =
3116 info->attrs[HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE];
bc791098
JB		 3117
3118 if (info->attrs[HWSIM_ATTR_CHANNELS])
62759361 3119 param.channels = nla_get_u32(info->attrs[HWSIM_ATTR_CHANNELS]);
bc791098 3120
9a0cb89a 3121 if (info->attrs[HWSIM_ATTR_NO_VIF])
62759361 3122 param.no_vif = true;
9a0cb89a 3123
ff4dd73d
JB		 3124 if (info->attrs[HWSIM_ATTR_RADIO_NAME]) {
3125 hwname = kasprintf(GFP_KERNEL, "%.*s",
3126 nla_len(info->attrs[HWSIM_ATTR_RADIO_NAME]),
3127 (char *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]));
3128 if (!hwname)
3129 return -ENOMEM;
3130 param.hwname = hwname;
3131 }
5cd8926b 3132
361c3e04 3133 if (info->attrs[HWSIM_ATTR_USE_CHANCTX])
62759361 3134 param.use_chanctx = true;
361c3e04 3135 else
62759361 3136 param.use_chanctx = (param.channels > 1);
361c3e04 3137
26b0e411 3138 if (info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2])
62759361
JR		 3139 param.reg_alpha2 =
3140 nla_data(info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2]);
26b0e411
JB		 3141
3142 if (info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]) {
3143 u32 idx = nla_get_u32(info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]);
3144
3145 if (idx >= ARRAY_SIZE(hwsim_world_regdom_custom))
3146 return -EINVAL;
62759361 3147 param.regd = hwsim_world_regdom_custom[idx];
26b0e411
JB		 3148 }
3149
62759361 3150 return mac80211_hwsim_new_radio(info, &param);
bc791098
JB		 3151}
3152
579a05f2 3153static int hwsim_del_radio_nl(struct sk_buff *msg, struct genl_info *info)
bc791098
JB		 3154{
3155 struct mac80211_hwsim_data *data;
8cdd9e1c
BG		 3156 s64 idx = -1;
3157 const char *hwname = NULL;
bc791098 3158
ff4dd73d 3159 if (info->attrs[HWSIM_ATTR_RADIO_ID]) {
8cdd9e1c 3160 idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
ff4dd73d
JB		 3161 } else if (info->attrs[HWSIM_ATTR_RADIO_NAME]) {
3162 hwname = kasprintf(GFP_KERNEL, "%.*s",
3163 nla_len(info->attrs[HWSIM_ATTR_RADIO_NAME]),
3164 (char *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]));
3165 if (!hwname)
3166 return -ENOMEM;
3167 } else
bc791098 3168 return -EINVAL;
bc791098
JB		 3169
3170 spin_lock_bh(&hwsim_radio_lock);
3171 list_for_each_entry(data, &hwsim_radios, list) {
8cdd9e1c
BG		 3172 if (idx >= 0) {
3173 if (data->idx != idx)
3174 continue;
3175 } else {
ff4dd73d
JB		 3176 if (!hwname ||
3177 strcmp(hwname, wiphy_name(data->hw->wiphy)))
8cdd9e1c
BG		 3178 continue;
3179 }
3180
100cb9ff
MW		 3181 if (!net_eq(wiphy_net(data->hw->wiphy), genl_info_net(info)))
3182 continue;
3183
bc791098
JB		 3184 list_del(&data->list);
3185 spin_unlock_bh(&hwsim_radio_lock);
b9995f83
JR		 3186 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
3187 info);
ff4dd73d 3188 kfree(hwname);
bc791098
JB		 3189 return 0;
3190 }
3191 spin_unlock_bh(&hwsim_radio_lock);
3192
ff4dd73d 3193 kfree(hwname);
bc791098 3194 return -ENODEV;
7882513b
JL		 3195}
3196
93d638d4
PF		 3197static int hwsim_get_radio_nl(struct sk_buff *msg, struct genl_info *info)
3198{
3199 struct mac80211_hwsim_data *data;
3200 struct sk_buff *skb;
3201 int idx, res = -ENODEV;
3202
3203 if (!info->attrs[HWSIM_ATTR_RADIO_ID])
3204 return -EINVAL;
3205 idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
3206
3207 spin_lock_bh(&hwsim_radio_lock);
3208 list_for_each_entry(data, &hwsim_radios, list) {
3209 if (data->idx != idx)
3210 continue;
3211
100cb9ff
MW		 3212 if (!net_eq(wiphy_net(data->hw->wiphy), genl_info_net(info)))
3213 continue;
3214
93d638d4
PF		 3215 skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3216 if (!skb) {
3217 res = -ENOMEM;
3218 goto out_err;
3219 }
3220
3221 res = mac80211_hwsim_get_radio(skb, data, info->snd_portid,
3222 info->snd_seq, NULL, 0);
3223 if (res < 0) {
3224 nlmsg_free(skb);
3225 goto out_err;
3226 }
3227
3228 genlmsg_reply(skb, info);
3229 break;
3230 }
3231
3232out_err:
3233 spin_unlock_bh(&hwsim_radio_lock);
3234
3235 return res;
3236}
3237
3238static int hwsim_dump_radio_nl(struct sk_buff *skb,
3239 struct netlink_callback *cb)
3240{
3241 int idx = cb->args[0];
3242 struct mac80211_hwsim_data *data = NULL;
3243 int res;
3244
3245 spin_lock_bh(&hwsim_radio_lock);
3246
3247 if (idx == hwsim_radio_idx)
3248 goto done;
3249
3250 list_for_each_entry(data, &hwsim_radios, list) {
3251 if (data->idx < idx)
3252 continue;
3253
100cb9ff
MW		 3254 if (!net_eq(wiphy_net(data->hw->wiphy), sock_net(skb->sk)))
3255 continue;
3256
93d638d4
PF		 3257 res = mac80211_hwsim_get_radio(skb, data,
3258 NETLINK_CB(cb->skb).portid,
3259 cb->nlh->nlmsg_seq, cb,
3260 NLM_F_MULTI);
3261 if (res < 0)
3262 break;
3263
3264 idx = data->idx + 1;
3265 }
3266
3267 cb->args[0] = idx;
3268
3269done:
3270 spin_unlock_bh(&hwsim_radio_lock);
3271 return skb->len;
3272}
3273
7882513b 3274/* Generic Netlink operations array */
4534de83 3275static const struct genl_ops hwsim_ops[] = {
7882513b
JL		 3276 {
3277 .cmd = HWSIM_CMD_REGISTER,
3278 .policy = hwsim_genl_policy,
3279 .doit = hwsim_register_received_nl,
f21e4d8e 3280 .flags = GENL_UNS_ADMIN_PERM,
7882513b
JL		 3281 },
3282 {
3283 .cmd = HWSIM_CMD_FRAME,
3284 .policy = hwsim_genl_policy,
3285 .doit = hwsim_cloned_frame_received_nl,
3286 },
3287 {
3288 .cmd = HWSIM_CMD_TX_INFO_FRAME,
3289 .policy = hwsim_genl_policy,
3290 .doit = hwsim_tx_info_frame_received_nl,
3291 },
bc791098 3292 {
62759361 3293 .cmd = HWSIM_CMD_NEW_RADIO,
bc791098 3294 .policy = hwsim_genl_policy,
62759361 3295 .doit = hwsim_new_radio_nl,
100cb9ff 3296 .flags = GENL_UNS_ADMIN_PERM,
bc791098
JB		 3297 },
3298 {
579a05f2 3299 .cmd = HWSIM_CMD_DEL_RADIO,
bc791098 3300 .policy = hwsim_genl_policy,
579a05f2 3301 .doit = hwsim_del_radio_nl,
100cb9ff 3302 .flags = GENL_UNS_ADMIN_PERM,
bc791098 3303 },
93d638d4
PF		 3304 {
3305 .cmd = HWSIM_CMD_GET_RADIO,
3306 .policy = hwsim_genl_policy,
3307 .doit = hwsim_get_radio_nl,
3308 .dumpit = hwsim_dump_radio_nl,
3309 },
7882513b
JL		 3310};
3311
56989f6d 3312static struct genl_family hwsim_genl_family __ro_after_init = {
489111e5
JB		 3313 .name = "MAC80211_HWSIM",
3314 .version = 1,
3315 .maxattr = HWSIM_ATTR_MAX,
3316 .netnsok = true,
3317 .module = THIS_MODULE,
3318 .ops = hwsim_ops,
3319 .n_ops = ARRAY_SIZE(hwsim_ops),
3320 .mcgrps = hwsim_mcgrps,
3321 .n_mcgrps = ARRAY_SIZE(hwsim_mcgrps),
3322};
3323
e9ed49bf
JR		 3324static void destroy_radio(struct work_struct *work)
3325{
3326 struct mac80211_hwsim_data *data =
3327 container_of(work, struct mac80211_hwsim_data, destroy_work);
3328
b9995f83 3329 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy), NULL);
e9ed49bf
JR		 3330}
3331
3332static void remove_user_radios(u32 portid)
3333{
3334 struct mac80211_hwsim_data *entry, *tmp;
3335
3336 spin_lock_bh(&hwsim_radio_lock);
3337 list_for_each_entry_safe(entry, tmp, &hwsim_radios, list) {
3338 if (entry->destroy_on_close && entry->portid == portid) {
3339 list_del(&entry->list);
3340 INIT_WORK(&entry->destroy_work, destroy_radio);
3341 schedule_work(&entry->destroy_work);
3342 }
3343 }
3344 spin_unlock_bh(&hwsim_radio_lock);
3345}
3346
7882513b
JL		 3347static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
3348 unsigned long state,
3349 void *_notify)
3350{
3351 struct netlink_notify *notify = _notify;
3352
3353 if (state != NETLINK_URELEASE)
3354 return NOTIFY_DONE;
3355
e9ed49bf
JR		 3356 remove_user_radios(notify->portid);
3357
f21e4d8e 3358 if (notify->portid == hwsim_net_get_wmediumd(notify->net)) {
7882513b
JL		 3359 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
3360 " socket, switching to perfect channel medium\n");
f21e4d8e 3361 hwsim_register_wmediumd(notify->net, 0);
7882513b
JL		 3362 }
3363 return NOTIFY_DONE;
3364
3365}
3366
3367static struct notifier_block hwsim_netlink_notifier = {
3368 .notifier_call = mac80211_hwsim_netlink_notify,
3369};
3370
56989f6d 3371static int __init hwsim_init_netlink(void)
7882513b
JL		 3372{
3373 int rc;
e8261171 3374
7882513b
JL		 3375 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
3376
489111e5 3377 rc = genl_register_family(&hwsim_genl_family);
7882513b
JL		 3378 if (rc)
3379 goto failure;
3380
3381 rc = netlink_register_notifier(&hwsim_netlink_notifier);
2459cd87
SKY		 3382 if (rc) {
3383 genl_unregister_family(&hwsim_genl_family);
7882513b 3384 goto failure;
2459cd87 3385 }
7882513b
JL		 3386
3387 return 0;
3388
3389failure:
c393862f 3390 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 3391 return -EINVAL;
3392}
3393
100cb9ff
MW		 3394static __net_init int hwsim_init_net(struct net *net)
3395{
3396 hwsim_net_set_netgroup(net);
3397
3398 return 0;
3399}
3400
3401static void __net_exit hwsim_exit_net(struct net *net)
3402{
3403 struct mac80211_hwsim_data *data, *tmp;
3404
3405 spin_lock_bh(&hwsim_radio_lock);
3406 list_for_each_entry_safe(data, tmp, &hwsim_radios, list) {
3407 if (!net_eq(wiphy_net(data->hw->wiphy), net))
3408 continue;
3409
3410 /* Radios created in init_net are returned to init_net. */
3411 if (data->netgroup == hwsim_net_get_netgroup(&init_net))
3412 continue;
3413
3414 list_del(&data->list);
3415 INIT_WORK(&data->destroy_work, destroy_radio);
3416 schedule_work(&data->destroy_work);
3417 }
3418 spin_unlock_bh(&hwsim_radio_lock);
3419}
3420
3421static struct pernet_operations hwsim_net_ops = {
3422 .init = hwsim_init_net,
3423 .exit = hwsim_exit_net,
3424 .id = &hwsim_net_id,
3425 .size = sizeof(struct hwsim_net),
3426};
3427
7882513b
JL		 3428static void hwsim_exit_netlink(void)
3429{
7882513b
JL		 3430 /* unregister the notifier */
3431 netlink_unregister_notifier(&hwsim_netlink_notifier);
3432 /* unregister the family */
cf7a6b2d 3433 genl_unregister_family(&hwsim_genl_family);
7882513b
JL		 3434}
3435
acc1e7a3
JM		 3436static int __init init_mac80211_hwsim(void)
3437{
f39c2bfa 3438 int i, err;
acc1e7a3 3439
bc791098 3440 if (radios < 0 || radios > 100)
acc1e7a3
JM		 3441 return -EINVAL;
3442
e8261171
JB		 3443 if (channels < 1)
3444 return -EINVAL;
3445
0e057d73 3446 spin_lock_init(&hwsim_radio_lock);
acc1e7a3 3447
100cb9ff 3448 err = register_pernet_device(&hwsim_net_ops);
9ea92774
MP		 3449 if (err)
3450 return err;
3451
100cb9ff
MW		 3452 err = platform_driver_register(&mac80211_hwsim_driver);
3453 if (err)
3454 goto out_unregister_pernet;
3455
acc1e7a3 3456 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
9ea92774
MP		 3457 if (IS_ERR(hwsim_class)) {
3458 err = PTR_ERR(hwsim_class);
f39c2bfa 3459 goto out_unregister_driver;
9ea92774 3460 }
acc1e7a3 3461
62759361
JR		 3462 err = hwsim_init_netlink();
3463 if (err < 0)
3464 goto out_unregister_driver;
3465
0e057d73 3466 for (i = 0; i < radios; i++) {
62759361
JR		 3467 struct hwsim_new_radio_params param = { 0 };
3468
3469 param.channels = channels;
acc1e7a3 3470
4a5af9c2 3471 switch (regtest) {
4a5af9c2 3472 case HWSIM_REGTEST_DIFF_COUNTRY:
26b0e411 3473 if (i < ARRAY_SIZE(hwsim_alpha2s))
62759361 3474 param.reg_alpha2 = hwsim_alpha2s[i];
4a5af9c2
LR		 3475 break;
3476 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
3477 if (!i)
62759361 3478 param.reg_alpha2 = hwsim_alpha2s[0];
4a5af9c2 3479 break;
4a5af9c2 3480 case HWSIM_REGTEST_STRICT_ALL:
62759361 3481 param.reg_strict = true;
26b0e411 3482 case HWSIM_REGTEST_DRIVER_REG_ALL:
62759361 3483 param.reg_alpha2 = hwsim_alpha2s[0];
4a5af9c2 3484 break;
26b0e411
JB		 3485 case HWSIM_REGTEST_WORLD_ROAM:
3486 if (i == 0)
62759361 3487 param.regd = &hwsim_world_regdom_custom_01;
4a5af9c2
LR		 3488 break;
3489 case HWSIM_REGTEST_CUSTOM_WORLD:
62759361 3490 param.regd = &hwsim_world_regdom_custom_01;
26b0e411 3491 break;
4a5af9c2 3492 case HWSIM_REGTEST_CUSTOM_WORLD_2:
26b0e411 3493 if (i == 0)
62759361 3494 param.regd = &hwsim_world_regdom_custom_01;
26b0e411 3495 else if (i == 1)
62759361 3496 param.regd = &hwsim_world_regdom_custom_02;
4a5af9c2
LR		 3497 break;
3498 case HWSIM_REGTEST_STRICT_FOLLOW:
26b0e411 3499 if (i == 0) {
62759361
JR		 3500 param.reg_strict = true;
3501 param.reg_alpha2 = hwsim_alpha2s[0];
26b0e411 3502 }
4a5af9c2
LR		 3503 break;
3504 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
26b0e411 3505 if (i == 0) {
62759361
JR		 3506 param.reg_strict = true;
3507 param.reg_alpha2 = hwsim_alpha2s[0];
26b0e411 3508 } else if (i == 1) {
62759361 3509 param.reg_alpha2 = hwsim_alpha2s[1];
26b0e411 3510 }
4a5af9c2
LR		 3511 break;
3512 case HWSIM_REGTEST_ALL:
26b0e411
JB		 3513 switch (i) {
3514 case 0:
62759361 3515 param.regd = &hwsim_world_regdom_custom_01;
26b0e411
JB		 3516 break;
3517 case 1:
62759361 3518 param.regd = &hwsim_world_regdom_custom_02;
26b0e411
JB		 3519 break;
3520 case 2:
62759361 3521 param.reg_alpha2 = hwsim_alpha2s[0];
26b0e411
JB		 3522 break;
3523 case 3:
62759361 3524 param.reg_alpha2 = hwsim_alpha2s[1];
26b0e411
JB		 3525 break;
3526 case 4:
62759361
JR		 3527 param.reg_strict = true;
3528 param.reg_alpha2 = hwsim_alpha2s[2];
26b0e411
JB		 3529 break;
3530 }
4a5af9c2
LR		 3531 break;
3532 default:
3533 break;
3534 }
3535
62759361
JR		 3536 param.p2p_device = support_p2p_device;
3537 param.use_chanctx = channels > 1;
3538
3539 err = mac80211_hwsim_new_radio(NULL, &param);
bc791098 3540 if (err < 0)
f39c2bfa 3541 goto out_free_radios;
acc1e7a3
JM		 3542 }
3543
c835a677
TG		 3544 hwsim_mon = alloc_netdev(0, "hwsim%d", NET_NAME_UNKNOWN,
3545 hwsim_mon_setup);
bcdd8220
WY		 3546 if (hwsim_mon == NULL) {
3547 err = -ENOMEM;
f39c2bfa 3548 goto out_free_radios;
bcdd8220 3549 }
acc1e7a3 3550
7882513b 3551 rtnl_lock();
7882513b 3552 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
f39c2bfa
JB		 3553 if (err < 0) {
3554 rtnl_unlock();
3555 goto out_free_radios;
3556 }
7882513b
JL		 3557
3558 err = register_netdevice(hwsim_mon);
f39c2bfa
JB		 3559 if (err < 0) {
3560 rtnl_unlock();
3561 goto out_free_mon;
3562 }
7882513b
JL		 3563 rtnl_unlock();
3564
acc1e7a3
JM		 3565 return 0;
3566
f39c2bfa 3567out_free_mon:
acc1e7a3 3568 free_netdev(hwsim_mon);
f39c2bfa 3569out_free_radios:
3a33cc10 3570 mac80211_hwsim_free();
f39c2bfa 3571out_unregister_driver:
c07fe5ae 3572 platform_driver_unregister(&mac80211_hwsim_driver);
100cb9ff
MW		 3573out_unregister_pernet:
3574 unregister_pernet_device(&hwsim_net_ops);
acc1e7a3
JM		 3575 return err;
3576}
f8fffc7e 3577module_init(init_mac80211_hwsim);
acc1e7a3
JM		 3578
3579static void __exit exit_mac80211_hwsim(void)
3580{
0e057d73 3581 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
acc1e7a3 3582
7882513b
JL		 3583 hwsim_exit_netlink();
3584
acc1e7a3 3585 mac80211_hwsim_free();
5d416351 3586 unregister_netdev(hwsim_mon);
c07fe5ae 3587 platform_driver_unregister(&mac80211_hwsim_driver);
100cb9ff 3588 unregister_pernet_device(&hwsim_net_ops);
acc1e7a3 3589}
acc1e7a3 3590module_exit(exit_mac80211_hwsim);
Linux 6.x block layer and io_uring tree(s)