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genetlink: mark families as __ro_after_init
[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
f1724b02 253static 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 */
acc1e7a3
JM		 353};
354
355static const struct ieee80211_rate hwsim_rates[] = {
356 { .bitrate = 10 },
357 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
358 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
359 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
360 { .bitrate = 60 },
361 { .bitrate = 90 },
362 { .bitrate = 120 },
363 { .bitrate = 180 },
364 { .bitrate = 240 },
365 { .bitrate = 360 },
366 { .bitrate = 480 },
367 { .bitrate = 540 }
368};
369
d5d011b4
JM		 370#define OUI_QCA 0x001374
371#define QCA_NL80211_SUBCMD_TEST 1
372enum qca_nl80211_vendor_subcmds {
373 QCA_WLAN_VENDOR_ATTR_TEST = 8,
374 QCA_WLAN_VENDOR_ATTR_MAX = QCA_WLAN_VENDOR_ATTR_TEST
375};
376
377static const struct nla_policy
378hwsim_vendor_test_policy[QCA_WLAN_VENDOR_ATTR_MAX + 1] = {
379 [QCA_WLAN_VENDOR_ATTR_MAX] = { .type = NLA_U32 },
380};
381
382static int mac80211_hwsim_vendor_cmd_test(struct wiphy *wiphy,
383 struct wireless_dev *wdev,
384 const void *data, int data_len)
385{
386 struct sk_buff *skb;
387 struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_MAX + 1];
388 int err;
389 u32 val;
390
391 err = nla_parse(tb, QCA_WLAN_VENDOR_ATTR_MAX, data, data_len,
392 hwsim_vendor_test_policy);
393 if (err)
394 return err;
395 if (!tb[QCA_WLAN_VENDOR_ATTR_TEST])
396 return -EINVAL;
397 val = nla_get_u32(tb[QCA_WLAN_VENDOR_ATTR_TEST]);
398 wiphy_debug(wiphy, "%s: test=%u\n", __func__, val);
399
400 /* Send a vendor event as a test. Note that this would not normally be
401 * done within a command handler, but rather, based on some other
402 * trigger. For simplicity, this command is used to trigger the event
403 * here.
404 *
405 * event_idx = 0 (index in mac80211_hwsim_vendor_commands)
406 */
407 skb = cfg80211_vendor_event_alloc(wiphy, wdev, 100, 0, GFP_KERNEL);
408 if (skb) {
409 /* skb_put() or nla_put() will fill up data within
410 * NL80211_ATTR_VENDOR_DATA.
411 */
412
413 /* Add vendor data */
414 nla_put_u32(skb, QCA_WLAN_VENDOR_ATTR_TEST, val + 1);
415
416 /* Send the event - this will call nla_nest_end() */
417 cfg80211_vendor_event(skb, GFP_KERNEL);
418 }
419
420 /* Send a response to the command */
421 skb = cfg80211_vendor_cmd_alloc_reply_skb(wiphy, 10);
422 if (!skb)
423 return -ENOMEM;
424
425 /* skb_put() or nla_put() will fill up data within
426 * NL80211_ATTR_VENDOR_DATA
427 */
428 nla_put_u32(skb, QCA_WLAN_VENDOR_ATTR_TEST, val + 2);
429
430 return cfg80211_vendor_cmd_reply(skb);
431}
432
433static struct wiphy_vendor_command mac80211_hwsim_vendor_commands[] = {
434 {
435 .info = { .vendor_id = OUI_QCA,
436 .subcmd = QCA_NL80211_SUBCMD_TEST },
437 .flags = WIPHY_VENDOR_CMD_NEED_NETDEV,
438 .doit = mac80211_hwsim_vendor_cmd_test,
439 }
440};
441
442/* Advertise support vendor specific events */
443static const struct nl80211_vendor_cmd_info mac80211_hwsim_vendor_events[] = {
444 { .vendor_id = OUI_QCA, .subcmd = 1 },
445};
446
de0421d5
JB		 447static const struct ieee80211_iface_limit hwsim_if_limits[] = {
448 { .max = 1, .types = BIT(NL80211_IFTYPE_ADHOC) },
449 { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) |
450 BIT(NL80211_IFTYPE_P2P_CLIENT) |
451#ifdef CONFIG_MAC80211_MESH
452 BIT(NL80211_IFTYPE_MESH_POINT) |
453#endif
454 BIT(NL80211_IFTYPE_AP) |
455 BIT(NL80211_IFTYPE_P2P_GO) },
8c66a3d9
JB		 456 /* must be last, see hwsim_if_comb */
457 { .max = 1, .types = BIT(NL80211_IFTYPE_P2P_DEVICE) }
de0421d5
JB		 458};
459
de0421d5 460static const struct ieee80211_iface_combination hwsim_if_comb[] = {
8c66a3d9
JB		 461 {
462 .limits = hwsim_if_limits,
463 /* remove the last entry which is P2P_DEVICE */
464 .n_limits = ARRAY_SIZE(hwsim_if_limits) - 1,
465 .max_interfaces = 2048,
466 .num_different_channels = 1,
8c66a3d9
JB		 467 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
468 BIT(NL80211_CHAN_WIDTH_20) |
469 BIT(NL80211_CHAN_WIDTH_40) |
470 BIT(NL80211_CHAN_WIDTH_80) |
471 BIT(NL80211_CHAN_WIDTH_160),
f7736f50 472 },
8c66a3d9
JB		 473};
474
475static const struct ieee80211_iface_combination hwsim_if_comb_p2p_dev[] = {
de0421d5
JB		 476 {
477 .limits = hwsim_if_limits,
478 .n_limits = ARRAY_SIZE(hwsim_if_limits),
479 .max_interfaces = 2048,
480 .num_different_channels = 1,
de0421d5
JB		 481 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
482 BIT(NL80211_CHAN_WIDTH_20) |
483 BIT(NL80211_CHAN_WIDTH_40) |
484 BIT(NL80211_CHAN_WIDTH_80) |
485 BIT(NL80211_CHAN_WIDTH_160),
f7736f50 486 },
de0421d5
JB		 487};
488
0e057d73 489static spinlock_t hwsim_radio_lock;
b59abfbe 490static LIST_HEAD(hwsim_radios);
2d68992b 491static int hwsim_radio_idx;
0e057d73 492
de0421d5
JB		 493static struct platform_driver mac80211_hwsim_driver = {
494 .driver = {
495 .name = "mac80211_hwsim",
de0421d5
JB		 496 },
497};
0e057d73 498
acc1e7a3 499struct mac80211_hwsim_data {
0e057d73
JB		 500 struct list_head list;
501 struct ieee80211_hw *hw;
acc1e7a3 502 struct device *dev;
57fbcce3 503 struct ieee80211_supported_band bands[NUM_NL80211_BANDS];
22cad735
LR		 504 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
505 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
acc1e7a3 506 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
38ed5048 507 struct ieee80211_iface_combination if_combination;
acc1e7a3 508
ef15aac6 509 struct mac_address addresses[2];
bc791098 510 int channels, idx;
361c3e04 511 bool use_chanctx;
e9ed49bf
JR		 512 bool destroy_on_close;
513 struct work_struct destroy_work;
514 u32 portid;
93d638d4
PF		 515 char alpha2[2];
516 const struct ieee80211_regdomain *regd;
ef15aac6 517
e8261171 518 struct ieee80211_channel *tmp_chan;
661ef475
JB		 519 struct ieee80211_channel *roc_chan;
520 u32 roc_duration;
521 struct delayed_work roc_start;
e8261171
JB		 522 struct delayed_work roc_done;
523 struct delayed_work hw_scan;
524 struct cfg80211_scan_request *hw_scan_request;
525 struct ieee80211_vif *hw_scan_vif;
526 int scan_chan_idx;
339467b9 527 u8 scan_addr[ETH_ALEN];
e8261171 528
acc1e7a3 529 struct ieee80211_channel *channel;
01e59e46 530 u64 beacon_int /* beacon interval in us */;
acc1e7a3 531 unsigned int rx_filter;
f74cb0f7
LR		 532 bool started, idle, scanning;
533 struct mutex mutex;
01e59e46 534 struct tasklet_hrtimer beacon_timer;
fc6971d4
JM		 535 enum ps_mode {
536 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
537 } ps;
538 bool ps_poll_pending;
539 struct dentry *debugfs;
73606d00 540
959eb2fd 541 uintptr_t pending_cookie;
7882513b 542 struct sk_buff_head pending; /* packets pending */
73606d00
DW		 543 /*
544 * Only radios in the same group can communicate together (the
545 * channel has to match too). Each bit represents a group. A
9ebac15f 546 * radio can be in more than one group.
73606d00
DW		 547 */
548 u64 group;
bdd7bd16 549
100cb9ff
MW		 550 /* group shared by radios created in the same netns */
551 int netgroup;
f21e4d8e
MW		 552 /* wmediumd portid responsible for netgroup of this radio */
553 u32 wmediumd;
100cb9ff 554
bdd7bd16 555 int power_level;
2f40b940
JC		 556
557 /* difference between this hw's clock and the real clock, in usecs */
45034bfb 558 s64 tsf_offset;
c51f8783 559 s64 bcn_delta;
b66851c3
TP		 560 /* absolute beacon transmission time. Used to cover up "tx" delay. */
561 u64 abs_bcn_ts;
2155c3f8
BG		 562
563 /* Stats */
564 u64 tx_pkts;
565 u64 rx_pkts;
566 u64 tx_bytes;
567 u64 rx_bytes;
568 u64 tx_dropped;
569 u64 tx_failed;
acc1e7a3
JM		 570};
571
572
573struct hwsim_radiotap_hdr {
574 struct ieee80211_radiotap_header hdr;
2f40b940 575 __le64 rt_tsft;
acc1e7a3
JM		 576 u8 rt_flags;
577 u8 rt_rate;
578 __le16 rt_channel;
579 __le16 rt_chbitmask;
ba2d3587 580} __packed;
acc1e7a3 581
76a56eb3
JM		 582struct hwsim_radiotap_ack_hdr {
583 struct ieee80211_radiotap_header hdr;
584 u8 rt_flags;
585 u8 pad;
586 __le16 rt_channel;
587 __le16 rt_chbitmask;
588} __packed;
589
489111e5
JB		 590/* MAC80211_HWSIM netlink family */
591static struct genl_family hwsim_genl_family;
7882513b 592
62759361
JR		 593enum hwsim_multicast_groups {
594 HWSIM_MCGRP_CONFIG,
595};
596
597static const struct genl_multicast_group hwsim_mcgrps[] = {
598 [HWSIM_MCGRP_CONFIG] = { .name = "config", },
599};
600
7882513b
JL		 601/* MAC80211_HWSIM netlink policy */
602
205d2429 603static const struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
9ddd12af
JB		 604 [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
605 [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
7882513b
JL		 606 [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
607 .len = IEEE80211_MAX_DATA_LEN },
608 [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
609 [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
610 [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
611 [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC,
9ddd12af
JB		 612 .len = IEEE80211_TX_MAX_RATES *
613 sizeof(struct hwsim_tx_rate)},
7882513b 614 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
bc791098
JB		 615 [HWSIM_ATTR_CHANNELS] = { .type = NLA_U32 },
616 [HWSIM_ATTR_RADIO_ID] = { .type = NLA_U32 },
26b0e411
JB		 617 [HWSIM_ATTR_REG_HINT_ALPHA2] = { .type = NLA_STRING, .len = 2 },
618 [HWSIM_ATTR_REG_CUSTOM_REG] = { .type = NLA_U32 },
619 [HWSIM_ATTR_REG_STRICT_REG] = { .type = NLA_FLAG },
8c66a3d9 620 [HWSIM_ATTR_SUPPORT_P2P_DEVICE] = { .type = NLA_FLAG },
e9ed49bf 621 [HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE] = { .type = NLA_FLAG },
de29eda8
JB		 622 [HWSIM_ATTR_RADIO_NAME] = { .type = NLA_STRING },
623 [HWSIM_ATTR_NO_VIF] = { .type = NLA_FLAG },
624 [HWSIM_ATTR_FREQ] = { .type = NLA_U32 },
7882513b 625};
acc1e7a3 626
de0421d5
JB		 627static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
628 struct sk_buff *skb,
629 struct ieee80211_channel *chan);
630
631/* sysfs attributes */
632static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
633{
634 struct mac80211_hwsim_data *data = dat;
635 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
636 struct sk_buff *skb;
637 struct ieee80211_pspoll *pspoll;
638
639 if (!vp->assoc)
640 return;
641
642 wiphy_debug(data->hw->wiphy,
643 "%s: send PS-Poll to %pM for aid %d\n",
644 __func__, vp->bssid, vp->aid);
645
646 skb = dev_alloc_skb(sizeof(*pspoll));
647 if (!skb)
648 return;
649 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
650 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
651 IEEE80211_STYPE_PSPOLL |
652 IEEE80211_FCTL_PM);
653 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
654 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
655 memcpy(pspoll->ta, mac, ETH_ALEN);
656
657 rcu_read_lock();
658 mac80211_hwsim_tx_frame(data->hw, skb,
659 rcu_dereference(vif->chanctx_conf)->def.chan);
660 rcu_read_unlock();
661}
662
663static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
664 struct ieee80211_vif *vif, int ps)
665{
666 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
667 struct sk_buff *skb;
668 struct ieee80211_hdr *hdr;
669
670 if (!vp->assoc)
671 return;
672
673 wiphy_debug(data->hw->wiphy,
674 "%s: send data::nullfunc to %pM ps=%d\n",
675 __func__, vp->bssid, ps);
676
677 skb = dev_alloc_skb(sizeof(*hdr));
678 if (!skb)
679 return;
680 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
681 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
682 IEEE80211_STYPE_NULLFUNC |
683 (ps ? IEEE80211_FCTL_PM : 0));
684 hdr->duration_id = cpu_to_le16(0);
685 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
686 memcpy(hdr->addr2, mac, ETH_ALEN);
687 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
688
689 rcu_read_lock();
690 mac80211_hwsim_tx_frame(data->hw, skb,
691 rcu_dereference(vif->chanctx_conf)->def.chan);
692 rcu_read_unlock();
693}
694
695
696static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
697 struct ieee80211_vif *vif)
698{
699 struct mac80211_hwsim_data *data = dat;
700 hwsim_send_nullfunc(data, mac, vif, 1);
701}
702
703static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
704 struct ieee80211_vif *vif)
705{
706 struct mac80211_hwsim_data *data = dat;
707 hwsim_send_nullfunc(data, mac, vif, 0);
708}
709
710static int hwsim_fops_ps_read(void *dat, u64 *val)
711{
712 struct mac80211_hwsim_data *data = dat;
713 *val = data->ps;
714 return 0;
715}
716
717static int hwsim_fops_ps_write(void *dat, u64 val)
718{
719 struct mac80211_hwsim_data *data = dat;
720 enum ps_mode old_ps;
721
722 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
723 val != PS_MANUAL_POLL)
724 return -EINVAL;
725
726 old_ps = data->ps;
727 data->ps = val;
728
a809ca5e 729 local_bh_disable();
de0421d5 730 if (val == PS_MANUAL_POLL) {
a809ca5e
JB		 731 ieee80211_iterate_active_interfaces_atomic(
732 data->hw, IEEE80211_IFACE_ITER_NORMAL,
733 hwsim_send_ps_poll, data);
de0421d5
JB		 734 data->ps_poll_pending = true;
735 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
a809ca5e
JB		 736 ieee80211_iterate_active_interfaces_atomic(
737 data->hw, IEEE80211_IFACE_ITER_NORMAL,
738 hwsim_send_nullfunc_ps, data);
de0421d5 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_no_ps, data);
de0421d5 743 }
a809ca5e 744 local_bh_enable();
de0421d5
JB		 745
746 return 0;
747}
748
749DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
750 "%llu\n");
751
752static int hwsim_write_simulate_radar(void *dat, u64 val)
753{
754 struct mac80211_hwsim_data *data = dat;
755
756 ieee80211_radar_detected(data->hw);
757
758 return 0;
759}
760
761DEFINE_SIMPLE_ATTRIBUTE(hwsim_simulate_radar, NULL,
762 hwsim_write_simulate_radar, "%llu\n");
763
764static int hwsim_fops_group_read(void *dat, u64 *val)
765{
766 struct mac80211_hwsim_data *data = dat;
767 *val = data->group;
768 return 0;
769}
770
771static int hwsim_fops_group_write(void *dat, u64 val)
772{
773 struct mac80211_hwsim_data *data = dat;
774 data->group = val;
775 return 0;
776}
777
778DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
779 hwsim_fops_group_read, hwsim_fops_group_write,
780 "%llx\n");
781
d0cf9c0d
SH		 782static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
783 struct net_device *dev)
acc1e7a3
JM		 784{
785 /* TODO: allow packet injection */
786 dev_kfree_skb(skb);
6ed10654 787 return NETDEV_TX_OK;
acc1e7a3
JM		 788}
789
b66851c3
TP		 790static inline u64 mac80211_hwsim_get_tsf_raw(void)
791{
792 return ktime_to_us(ktime_get_real());
793}
794
2f40b940
JC		 795static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
796{
b66851c3 797 u64 now = mac80211_hwsim_get_tsf_raw();
2f40b940
JC		 798 return cpu_to_le64(now + data->tsf_offset);
799}
acc1e7a3 800
12ce8ba3 801static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
b66851c3 802 struct ieee80211_vif *vif)
12ce8ba3
JC		 803{
804 struct mac80211_hwsim_data *data = hw->priv;
805 return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
806}
807
808static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
809 struct ieee80211_vif *vif, u64 tsf)
810{
811 struct mac80211_hwsim_data *data = hw->priv;
45034bfb 812 u64 now = mac80211_hwsim_get_tsf(hw, vif);
c51f8783 813 u32 bcn_int = data->beacon_int;
79211c8e 814 u64 delta = abs(tsf - now);
45034bfb 815
c51f8783 816 /* adjust after beaconing with new timestamp at old TBTT */
5d26b508
AB		 817 if (tsf > now) {
818 data->tsf_offset += delta;
819 data->bcn_delta = do_div(delta, bcn_int);
820 } else {
821 data->tsf_offset -= delta;
822 data->bcn_delta = -do_div(delta, bcn_int);
823 }
12ce8ba3
JC		 824}
825
acc1e7a3 826static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
e8261171
JB		 827 struct sk_buff *tx_skb,
828 struct ieee80211_channel *chan)
acc1e7a3
JM		 829{
830 struct mac80211_hwsim_data *data = hw->priv;
831 struct sk_buff *skb;
832 struct hwsim_radiotap_hdr *hdr;
833 u16 flags;
834 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
835 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
836
89f44d8c
AK		 837 if (WARN_ON(!txrate))
838 return;
839
acc1e7a3
JM		 840 if (!netif_running(hwsim_mon))
841 return;
842
843 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
844 if (skb == NULL)
845 return;
846
847 hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
848 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
849 hdr->hdr.it_pad = 0;
850 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
f248f105
JM		 851 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
852 (1 << IEEE80211_RADIOTAP_RATE) |
2f40b940 853 (1 << IEEE80211_RADIOTAP_TSFT) |
f248f105 854 (1 << IEEE80211_RADIOTAP_CHANNEL));
2f40b940 855 hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
acc1e7a3
JM		 856 hdr->rt_flags = 0;
857 hdr->rt_rate = txrate->bitrate / 5;
e8261171 858 hdr->rt_channel = cpu_to_le16(chan->center_freq);
acc1e7a3
JM		 859 flags = IEEE80211_CHAN_2GHZ;
860 if (txrate->flags & IEEE80211_RATE_ERP_G)
861 flags |= IEEE80211_CHAN_OFDM;
862 else
863 flags |= IEEE80211_CHAN_CCK;
864 hdr->rt_chbitmask = cpu_to_le16(flags);
865
866 skb->dev = hwsim_mon;
6b163a85 867 skb_reset_mac_header(skb);
acc1e7a3
JM		 868 skb->ip_summed = CHECKSUM_UNNECESSARY;
869 skb->pkt_type = PACKET_OTHERHOST;
f248f105 870 skb->protocol = htons(ETH_P_802_2);
acc1e7a3
JM		 871 memset(skb->cb, 0, sizeof(skb->cb));
872 netif_rx(skb);
873}
874
875
e8261171
JB		 876static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
877 const u8 *addr)
6c085227 878{
6c085227 879 struct sk_buff *skb;
76a56eb3 880 struct hwsim_radiotap_ack_hdr *hdr;
6c085227
JM		 881 u16 flags;
882 struct ieee80211_hdr *hdr11;
883
884 if (!netif_running(hwsim_mon))
885 return;
886
887 skb = dev_alloc_skb(100);
888 if (skb == NULL)
889 return;
890
76a56eb3 891 hdr = (struct hwsim_radiotap_ack_hdr *) skb_put(skb, sizeof(*hdr));
6c085227
JM		 892 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
893 hdr->hdr.it_pad = 0;
894 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
895 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
896 (1 << IEEE80211_RADIOTAP_CHANNEL));
897 hdr->rt_flags = 0;
76a56eb3 898 hdr->pad = 0;
e8261171 899 hdr->rt_channel = cpu_to_le16(chan->center_freq);
6c085227
JM		 900 flags = IEEE80211_CHAN_2GHZ;
901 hdr->rt_chbitmask = cpu_to_le16(flags);
902
903 hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
904 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
905 IEEE80211_STYPE_ACK);
906 hdr11->duration_id = cpu_to_le16(0);
907 memcpy(hdr11->addr1, addr, ETH_ALEN);
908
909 skb->dev = hwsim_mon;
6b163a85 910 skb_reset_mac_header(skb);
6c085227
JM		 911 skb->ip_summed = CHECKSUM_UNNECESSARY;
912 skb->pkt_type = PACKET_OTHERHOST;
913 skb->protocol = htons(ETH_P_802_2);
914 memset(skb->cb, 0, sizeof(skb->cb));
915 netif_rx(skb);
916}
917
3283e286
JB		 918struct mac80211_hwsim_addr_match_data {
919 u8 addr[ETH_ALEN];
920 bool ret;
921};
922
923static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
924 struct ieee80211_vif *vif)
925{
926 struct mac80211_hwsim_addr_match_data *md = data;
927
928 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
929 md->ret = true;
930}
931
932static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
933 const u8 *addr)
934{
935 struct mac80211_hwsim_addr_match_data md = {
936 .ret = false,
937 };
938
339467b9
JB		 939 if (data->scanning && memcmp(addr, data->scan_addr, ETH_ALEN) == 0)
940 return true;
941
3283e286
JB		 942 memcpy(md.addr, addr, ETH_ALEN);
943
944 ieee80211_iterate_active_interfaces_atomic(data->hw,
945 IEEE80211_IFACE_ITER_NORMAL,
946 mac80211_hwsim_addr_iter,
947 &md);
948
949 return md.ret;
950}
6c085227 951
fc6971d4
JM		 952static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
953 struct sk_buff *skb)
954{
955 switch (data->ps) {
956 case PS_DISABLED:
957 return true;
958 case PS_ENABLED:
959 return false;
960 case PS_AUTO_POLL:
961 /* TODO: accept (some) Beacons by default and other frames only
962 * if pending PS-Poll has been sent */
963 return true;
964 case PS_MANUAL_POLL:
965 /* Allow unicast frames to own address if there is a pending
966 * PS-Poll */
967 if (data->ps_poll_pending &&
3283e286 968 mac80211_hwsim_addr_match(data, skb->data + 4)) {
fc6971d4
JM		 969 data->ps_poll_pending = false;
970 return true;
971 }
972 return false;
973 }
974
975 return true;
976}
977
f21e4d8e
MW		 978static int hwsim_unicast_netgroup(struct mac80211_hwsim_data *data,
979 struct sk_buff *skb, int portid)
980{
981 struct net *net;
982 bool found = false;
983 int res = -ENOENT;
984
985 rcu_read_lock();
986 for_each_net_rcu(net) {
987 if (data->netgroup == hwsim_net_get_netgroup(net)) {
988 res = genlmsg_unicast(net, skb, portid);
989 found = true;
990 break;
991 }
992 }
993 rcu_read_unlock();
994
995 if (!found)
996 nlmsg_free(skb);
997
998 return res;
999}
1000
7882513b
JL		 1001static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
1002 struct sk_buff *my_skb,
15e47304 1003 int dst_portid)
7882513b
JL		 1004{
1005 struct sk_buff *skb;
1006 struct mac80211_hwsim_data *data = hw->priv;
1007 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
1008 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
1009 void *msg_head;
1010 unsigned int hwsim_flags = 0;
1011 int i;
1012 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
959eb2fd 1013 uintptr_t cookie;
7882513b 1014
7882513b
JL		 1015 if (data->ps != PS_DISABLED)
1016 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1017 /* If the queue contains MAX_QUEUE skb's drop some */
1018 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
1019 /* Droping until WARN_QUEUE level */
2155c3f8 1020 while (skb_queue_len(&data->pending) >= WARN_QUEUE) {
b7bc9679 1021 ieee80211_free_txskb(hw, skb_dequeue(&data->pending));
2155c3f8
BG		 1022 data->tx_dropped++;
1023 }
7882513b
JL		 1024 }
1025
58050fce 1026 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
7882513b
JL		 1027 if (skb == NULL)
1028 goto nla_put_failure;
1029
1030 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
1031 HWSIM_CMD_FRAME);
1032 if (msg_head == NULL) {
1033 printk(KERN_DEBUG "mac80211_hwsim: problem with msg_head\n");
1034 goto nla_put_failure;
1035 }
1036
354210f8
BC		 1037 if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
1038 ETH_ALEN, data->addresses[1].addr))
633c9389 1039 goto nla_put_failure;
265dc7f0 1040
7882513b 1041 /* We get the skb->data */
633c9389
DM		 1042 if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
1043 goto nla_put_failure;
7882513b
JL		 1044
1045 /* We get the flags for this transmission, and we translate them to
1046 wmediumd flags */
1047
1048 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
1049 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
1050
1051 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
1052 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
1053
633c9389
DM		 1054 if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
1055 goto nla_put_failure;
7882513b 1056
4f86ed8f
BG		 1057 if (nla_put_u32(skb, HWSIM_ATTR_FREQ, data->channel->center_freq))
1058 goto nla_put_failure;
1059
7882513b
JL		 1060 /* We get the tx control (rate and retries) info*/
1061
1062 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
1063 tx_attempts[i].idx = info->status.rates[i].idx;
1064 tx_attempts[i].count = info->status.rates[i].count;
1065 }
1066
633c9389
DM		 1067 if (nla_put(skb, HWSIM_ATTR_TX_INFO,
1068 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
1069 tx_attempts))
1070 goto nla_put_failure;
7882513b
JL		 1071
1072 /* We create a cookie to identify this skb */
959eb2fd
JB		 1073 data->pending_cookie++;
1074 cookie = data->pending_cookie;
1075 info->rate_driver_data[0] = (void *)cookie;
08f4cbb8 1076 if (nla_put_u64_64bit(skb, HWSIM_ATTR_COOKIE, cookie, HWSIM_ATTR_PAD))
633c9389 1077 goto nla_put_failure;
7882513b
JL		 1078
1079 genlmsg_end(skb, msg_head);
f21e4d8e 1080 if (hwsim_unicast_netgroup(data, skb, dst_portid))
f2831e20 1081 goto err_free_txskb;
7882513b
JL		 1082
1083 /* Enqueue the packet */
1084 skb_queue_tail(&data->pending, my_skb);
2155c3f8
BG		 1085 data->tx_pkts++;
1086 data->tx_bytes += my_skb->len;
7882513b
JL		 1087 return;
1088
1089nla_put_failure:
f2831e20
BC		 1090 nlmsg_free(skb);
1091err_free_txskb:
c393862f 1092 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
b7bc9679 1093 ieee80211_free_txskb(hw, my_skb);
2155c3f8 1094 data->tx_failed++;
7882513b
JL		 1095}
1096
e8261171
JB		 1097static bool hwsim_chans_compat(struct ieee80211_channel *c1,
1098 struct ieee80211_channel *c2)
1099{
1100 if (!c1 || !c2)
1101 return false;
1102
1103 return c1->center_freq == c2->center_freq;
1104}
1105
1106struct tx_iter_data {
1107 struct ieee80211_channel *channel;
1108 bool receive;
1109};
1110
1111static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
1112 struct ieee80211_vif *vif)
1113{
1114 struct tx_iter_data *data = _data;
1115
1116 if (!vif->chanctx_conf)
1117 return;
1118
1119 if (!hwsim_chans_compat(data->channel,
4bf88530 1120 rcu_dereference(vif->chanctx_conf)->def.chan))
e8261171
JB		 1121 return;
1122
1123 data->receive = true;
1124}
1125
1f7bba79
JB		 1126static void mac80211_hwsim_add_vendor_rtap(struct sk_buff *skb)
1127{
1128 /*
1129 * To enable this code, #define the HWSIM_RADIOTAP_OUI,
1130 * e.g. like this:
1131 * #define HWSIM_RADIOTAP_OUI "\x02\x00\x00"
1132 * (but you should use a valid OUI, not that)
1133 *
1134 * If anyone wants to 'donate' a radiotap OUI/subns code
1135 * please send a patch removing this #ifdef and changing
1136 * the values accordingly.
1137 */
1138#ifdef HWSIM_RADIOTAP_OUI
1139 struct ieee80211_vendor_radiotap *rtap;
1140
1141 /*
1142 * Note that this code requires the headroom in the SKB
1143 * that was allocated earlier.
1144 */
1145 rtap = (void *)skb_push(skb, sizeof(*rtap) + 8 + 4);
1146 rtap->oui[0] = HWSIM_RADIOTAP_OUI[0];
1147 rtap->oui[1] = HWSIM_RADIOTAP_OUI[1];
1148 rtap->oui[2] = HWSIM_RADIOTAP_OUI[2];
1149 rtap->subns = 127;
1150
1151 /*
1152 * Radiotap vendor namespaces can (and should) also be
1153 * split into fields by using the standard radiotap
1154 * presence bitmap mechanism. Use just BIT(0) here for
1155 * the presence bitmap.
1156 */
1157 rtap->present = BIT(0);
1158 /* We have 8 bytes of (dummy) data */
1159 rtap->len = 8;
1160 /* For testing, also require it to be aligned */
1161 rtap->align = 8;
1162 /* And also test that padding works, 4 bytes */
1163 rtap->pad = 4;
1164 /* push the data */
1165 memcpy(rtap->data, "ABCDEFGH", 8);
1166 /* make sure to clear padding, mac80211 doesn't */
1167 memset(rtap->data + 8, 0, 4);
1168
1169 IEEE80211_SKB_RXCB(skb)->flag |= RX_FLAG_RADIOTAP_VENDOR_DATA;
1170#endif
1171}
1172
7882513b 1173static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
e8261171
JB		 1174 struct sk_buff *skb,
1175 struct ieee80211_channel *chan)
acc1e7a3 1176{
0e057d73
JB		 1177 struct mac80211_hwsim_data *data = hw->priv, *data2;
1178 bool ack = false;
e36cfdc9 1179 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
acc1e7a3 1180 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
e36cfdc9 1181 struct ieee80211_rx_status rx_status;
b66851c3 1182 u64 now;
acc1e7a3
JM		 1183
1184 memset(&rx_status, 0, sizeof(rx_status));
f4bda337 1185 rx_status.flag |= RX_FLAG_MACTIME_START;
e8261171
JB		 1186 rx_status.freq = chan->center_freq;
1187 rx_status.band = chan->band;
dad6330d
KB		 1188 if (info->control.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) {
1189 rx_status.rate_idx =
1190 ieee80211_rate_get_vht_mcs(&info->control.rates[0]);
1191 rx_status.vht_nss =
1192 ieee80211_rate_get_vht_nss(&info->control.rates[0]);
1193 rx_status.flag |= RX_FLAG_VHT;
1194 } else {
1195 rx_status.rate_idx = info->control.rates[0].idx;
1196 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
1197 rx_status.flag |= RX_FLAG_HT;
1198 }
281ed297
JM		 1199 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
1200 rx_status.flag |= RX_FLAG_40MHZ;
1201 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
1202 rx_status.flag |= RX_FLAG_SHORT_GI;
4b14c96d 1203 /* TODO: simulate real signal strength (and optional packet loss) */
bdd7bd16 1204 rx_status.signal = data->power_level - 50;
acc1e7a3 1205
fc6971d4
JM		 1206 if (data->ps != PS_DISABLED)
1207 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1208
90e3012e
JB		 1209 /* release the skb's source info */
1210 skb_orphan(skb);
c0acf38e 1211 skb_dst_drop(skb);
90e3012e
JB		 1212 skb->mark = 0;
1213 secpath_reset(skb);
1214 nf_reset(skb);
1215
b66851c3
TP		 1216 /*
1217 * Get absolute mactime here so all HWs RX at the "same time", and
1218 * absolute TX time for beacon mactime so the timestamp matches.
1219 * Giving beacons a different mactime than non-beacons looks messy, but
1220 * it helps the Toffset be exact and a ~10us mactime discrepancy
1221 * probably doesn't really matter.
1222 */
1223 if (ieee80211_is_beacon(hdr->frame_control) ||
1224 ieee80211_is_probe_resp(hdr->frame_control))
1225 now = data->abs_bcn_ts;
1226 else
1227 now = mac80211_hwsim_get_tsf_raw();
1228
acc1e7a3 1229 /* Copy skb to all enabled radios that are on the current frequency */
0e057d73
JB		 1230 spin_lock(&hwsim_radio_lock);
1231 list_for_each_entry(data2, &hwsim_radios, list) {
acc1e7a3 1232 struct sk_buff *nskb;
e8261171
JB		 1233 struct tx_iter_data tx_iter_data = {
1234 .receive = false,
1235 .channel = chan,
1236 };
acc1e7a3 1237
0e057d73 1238 if (data == data2)
acc1e7a3 1239 continue;
0e057d73 1240
e8261171
JB		 1241 if (!data2->started || (data2->idle && !data2->tmp_chan) ||
1242 !hwsim_ps_rx_ok(data2, skb))
acc1e7a3
JM		 1243 continue;
1244
e8261171
JB		 1245 if (!(data->group & data2->group))
1246 continue;
1247
100cb9ff
MW		 1248 if (data->netgroup != data2->netgroup)
1249 continue;
1250
e8261171
JB		 1251 if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
1252 !hwsim_chans_compat(chan, data2->channel)) {
1253 ieee80211_iterate_active_interfaces_atomic(
8b2c9824
JB		 1254 data2->hw, IEEE80211_IFACE_ITER_NORMAL,
1255 mac80211_hwsim_tx_iter, &tx_iter_data);
e8261171
JB		 1256 if (!tx_iter_data.receive)
1257 continue;
1258 }
1259
90b9e446
JB		 1260 /*
1261 * reserve some space for our vendor and the normal
1262 * radiotap header, since we're copying anyway
1263 */
a357d7f9
JB		 1264 if (skb->len < PAGE_SIZE && paged_rx) {
1265 struct page *page = alloc_page(GFP_ATOMIC);
1266
1267 if (!page)
1268 continue;
1269
1270 nskb = dev_alloc_skb(128);
1271 if (!nskb) {
1272 __free_page(page);
1273 continue;
1274 }
1275
1276 memcpy(page_address(page), skb->data, skb->len);
1277 skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
1278 } else {
1279 nskb = skb_copy(skb, GFP_ATOMIC);
1280 if (!nskb)
1281 continue;
1282 }
acc1e7a3 1283
265dc7f0 1284 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
0e057d73 1285 ack = true;
f483ad25 1286
b66851c3 1287 rx_status.mactime = now + data2->tsf_offset;
90b9e446 1288
f1d58c25 1289 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
1f7bba79
JB		 1290
1291 mac80211_hwsim_add_vendor_rtap(nskb);
1292
2155c3f8
BG		 1293 data2->rx_pkts++;
1294 data2->rx_bytes += nskb->len;
f1d58c25 1295 ieee80211_rx_irqsafe(data2->hw, nskb);
acc1e7a3 1296 }
0e057d73 1297 spin_unlock(&hwsim_radio_lock);
acc1e7a3 1298
e36cfdc9
JM		 1299 return ack;
1300}
1301
36323f81
TH		 1302static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
1303 struct ieee80211_tx_control *control,
1304 struct sk_buff *skb)
e36cfdc9 1305{
e8261171
JB		 1306 struct mac80211_hwsim_data *data = hw->priv;
1307 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
732b5395 1308 struct ieee80211_hdr *hdr = (void *)skb->data;
e8261171
JB		 1309 struct ieee80211_chanctx_conf *chanctx_conf;
1310 struct ieee80211_channel *channel;
0e057d73 1311 bool ack;
15e47304 1312 u32 _portid;
e36cfdc9 1313
e8261171 1314 if (WARN_ON(skb->len < 10)) {
e36cfdc9 1315 /* Should not happen; just a sanity check for addr1 use */
fe0f3cd2 1316 ieee80211_free_txskb(hw, skb);
7bb45683 1317 return;
e36cfdc9
JM		 1318 }
1319
361c3e04 1320 if (!data->use_chanctx) {
e8261171
JB		 1321 channel = data->channel;
1322 } else if (txi->hw_queue == 4) {
1323 channel = data->tmp_chan;
1324 } else {
1325 chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf);
1326 if (chanctx_conf)
4bf88530 1327 channel = chanctx_conf->def.chan;
e8261171
JB		 1328 else
1329 channel = NULL;
1330 }
1331
1332 if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
fe0f3cd2 1333 ieee80211_free_txskb(hw, skb);
e8261171
JB		 1334 return;
1335 }
1336
1337 if (data->idle && !data->tmp_chan) {
1338 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
fe0f3cd2 1339 ieee80211_free_txskb(hw, skb);
e8261171
JB		 1340 return;
1341 }
1342
1343 if (txi->control.vif)
1344 hwsim_check_magic(txi->control.vif);
1345 if (control->sta)
1346 hwsim_check_sta_magic(control->sta);
1347
30686bf7 1348 if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE))
1eb32179
KB		 1349 ieee80211_get_tx_rates(txi->control.vif, control->sta, skb,
1350 txi->control.rates,
1351 ARRAY_SIZE(txi->control.rates));
e8261171 1352
1eb32179 1353 txi->rate_driver_data[0] = channel;
732b5395
JM		 1354
1355 if (skb->len >= 24 + 8 &&
1356 ieee80211_is_probe_resp(hdr->frame_control)) {
1357 /* fake header transmission time */
1358 struct ieee80211_mgmt *mgmt;
1359 struct ieee80211_rate *txrate;
1360 u64 ts;
1361
1362 mgmt = (struct ieee80211_mgmt *)skb->data;
1363 txrate = ieee80211_get_tx_rate(hw, txi);
1364 ts = mac80211_hwsim_get_tsf_raw();
1365 mgmt->u.probe_resp.timestamp =
1366 cpu_to_le64(ts + data->tsf_offset +
1367 24 * 8 * 10 / txrate->bitrate);
1368 }
1369
e8261171
JB		 1370 mac80211_hwsim_monitor_rx(hw, skb, channel);
1371
7882513b 1372 /* wmediumd mode check */
f21e4d8e 1373 _portid = ACCESS_ONCE(data->wmediumd);
7882513b 1374
15e47304
EB		 1375 if (_portid)
1376 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
7882513b
JL		 1377
1378 /* NO wmediumd detected, perfect medium simulation */
2155c3f8
BG		 1379 data->tx_pkts++;
1380 data->tx_bytes += skb->len;
e8261171 1381 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
7882513b 1382
f06b7ab8 1383 if (ack && skb->len >= 16)
e8261171 1384 mac80211_hwsim_monitor_ack(channel, hdr->addr2);
e36cfdc9 1385
e6a9854b 1386 ieee80211_tx_info_clear_status(txi);
2a4ffa4c
JC		 1387
1388 /* frame was transmitted at most favorable rate at first attempt */
1389 txi->control.rates[0].count = 1;
1390 txi->control.rates[1].idx = -1;
1391
e6a9854b
JB		 1392 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
1393 txi->flags |= IEEE80211_TX_STAT_ACK;
acc1e7a3 1394 ieee80211_tx_status_irqsafe(hw, skb);
acc1e7a3
JM		 1395}
1396
1397
1398static int mac80211_hwsim_start(struct ieee80211_hw *hw)
1399{
1400 struct mac80211_hwsim_data *data = hw->priv;
c96c31e4 1401 wiphy_debug(hw->wiphy, "%s\n", __func__);
3db1cd5c 1402 data->started = true;
acc1e7a3
JM		 1403 return 0;
1404}
1405
1406
1407static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
1408{
1409 struct mac80211_hwsim_data *data = hw->priv;
3db1cd5c 1410 data->started = false;
01e59e46 1411 tasklet_hrtimer_cancel(&data->beacon_timer);
c96c31e4 1412 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 1413}
1414
1415
1416static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
1ed32e4f 1417 struct ieee80211_vif *vif)
acc1e7a3 1418{
c96c31e4 1419 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 1420 __func__, ieee80211_vif_type_p2p(vif),
1421 vif->addr);
1ed32e4f 1422 hwsim_set_magic(vif);
e8261171
JB		 1423
1424 vif->cab_queue = 0;
1425 vif->hw_queue[IEEE80211_AC_VO] = 0;
1426 vif->hw_queue[IEEE80211_AC_VI] = 1;
1427 vif->hw_queue[IEEE80211_AC_BE] = 2;
1428 vif->hw_queue[IEEE80211_AC_BK] = 3;
1429
acc1e7a3
JM		 1430 return 0;
1431}
1432
1433
c35d0270
JB		 1434static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
1435 struct ieee80211_vif *vif,
2ca27bcf
JB		 1436 enum nl80211_iftype newtype,
1437 bool newp2p)
c35d0270 1438{
2ca27bcf 1439 newtype = ieee80211_iftype_p2p(newtype, newp2p);
c35d0270
JB		 1440 wiphy_debug(hw->wiphy,
1441 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
2ca27bcf
JB		 1442 __func__, ieee80211_vif_type_p2p(vif),
1443 newtype, vif->addr);
c35d0270
JB		 1444 hwsim_check_magic(vif);
1445
3eb92f6a
JB		 1446 /*
1447 * interface may change from non-AP to AP in
1448 * which case this needs to be set up again
1449 */
1450 vif->cab_queue = 0;
1451
c35d0270
JB		 1452 return 0;
1453}
1454
acc1e7a3 1455static void mac80211_hwsim_remove_interface(
1ed32e4f 1456 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
acc1e7a3 1457{
c96c31e4 1458 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 1459 __func__, ieee80211_vif_type_p2p(vif),
1460 vif->addr);
1ed32e4f
JB		 1461 hwsim_check_magic(vif);
1462 hwsim_clear_magic(vif);
acc1e7a3
JM		 1463}
1464
e8261171
JB		 1465static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
1466 struct sk_buff *skb,
1467 struct ieee80211_channel *chan)
1468{
f21e4d8e
MW		 1469 struct mac80211_hwsim_data *data = hw->priv;
1470 u32 _pid = ACCESS_ONCE(data->wmediumd);
e8261171 1471
30686bf7 1472 if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE)) {
1eb32179
KB		 1473 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1474 ieee80211_get_tx_rates(txi->control.vif, NULL, skb,
1475 txi->control.rates,
1476 ARRAY_SIZE(txi->control.rates));
1477 }
1478
e8261171
JB		 1479 mac80211_hwsim_monitor_rx(hw, skb, chan);
1480
1481 if (_pid)
1482 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
1483
1484 mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
1485 dev_kfree_skb(skb);
1486}
acc1e7a3
JM		 1487
1488static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
1489 struct ieee80211_vif *vif)
1490{
b66851c3
TP		 1491 struct mac80211_hwsim_data *data = arg;
1492 struct ieee80211_hw *hw = data->hw;
1493 struct ieee80211_tx_info *info;
1494 struct ieee80211_rate *txrate;
1495 struct ieee80211_mgmt *mgmt;
acc1e7a3 1496 struct sk_buff *skb;
acc1e7a3 1497
8aa21e6f
JB		 1498 hwsim_check_magic(vif);
1499
55b39619 1500 if (vif->type != NL80211_IFTYPE_AP &&
2b2d7795
JB		 1501 vif->type != NL80211_IFTYPE_MESH_POINT &&
1502 vif->type != NL80211_IFTYPE_ADHOC)
acc1e7a3
JM		 1503 return;
1504
1505 skb = ieee80211_beacon_get(hw, vif);
1506 if (skb == NULL)
1507 return;
b66851c3 1508 info = IEEE80211_SKB_CB(skb);
30686bf7 1509 if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE))
1eb32179
KB		 1510 ieee80211_get_tx_rates(vif, NULL, skb,
1511 info->control.rates,
1512 ARRAY_SIZE(info->control.rates));
1513
b66851c3
TP		 1514 txrate = ieee80211_get_tx_rate(hw, info);
1515
1516 mgmt = (struct ieee80211_mgmt *) skb->data;
1517 /* fake header transmission time */
1518 data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
1519 mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
1520 data->tsf_offset +
1521 24 * 8 * 10 / txrate->bitrate);
7882513b 1522
e8261171 1523 mac80211_hwsim_tx_frame(hw, skb,
4bf88530 1524 rcu_dereference(vif->chanctx_conf)->def.chan);
0037db63
AO		 1525
1526 if (vif->csa_active && ieee80211_csa_is_complete(vif))
1527 ieee80211_csa_finish(vif);
acc1e7a3
JM		 1528}
1529
01e59e46
TP		 1530static enum hrtimer_restart
1531mac80211_hwsim_beacon(struct hrtimer *timer)
acc1e7a3 1532{
01e59e46
TP		 1533 struct mac80211_hwsim_data *data =
1534 container_of(timer, struct mac80211_hwsim_data,
1535 beacon_timer.timer);
1536 struct ieee80211_hw *hw = data->hw;
1537 u64 bcn_int = data->beacon_int;
1538 ktime_t next_bcn;
acc1e7a3 1539
4c4c671a 1540 if (!data->started)
01e59e46 1541 goto out;
acc1e7a3 1542
f248f105 1543 ieee80211_iterate_active_interfaces_atomic(
8b2c9824 1544 hw, IEEE80211_IFACE_ITER_NORMAL,
b66851c3 1545 mac80211_hwsim_beacon_tx, data);
acc1e7a3 1546
c51f8783
TP		 1547 /* beacon at new TBTT + beacon interval */
1548 if (data->bcn_delta) {
1549 bcn_int -= data->bcn_delta;
1550 data->bcn_delta = 0;
1551 }
1552
01e59e46
TP		 1553 next_bcn = ktime_add(hrtimer_get_expires(timer),
1554 ns_to_ktime(bcn_int * 1000));
1555 tasklet_hrtimer_start(&data->beacon_timer, next_bcn, HRTIMER_MODE_ABS);
1556out:
1557 return HRTIMER_NORESTART;
acc1e7a3
JM		 1558}
1559
675a0b04
KB		 1560static const char * const hwsim_chanwidths[] = {
1561 [NL80211_CHAN_WIDTH_20_NOHT] = "noht",
1562 [NL80211_CHAN_WIDTH_20] = "ht20",
1563 [NL80211_CHAN_WIDTH_40] = "ht40",
1564 [NL80211_CHAN_WIDTH_80] = "vht80",
1565 [NL80211_CHAN_WIDTH_80P80] = "vht80p80",
1566 [NL80211_CHAN_WIDTH_160] = "vht160",
0aaffa9b 1567};
acc1e7a3 1568
e8975581 1569static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
acc1e7a3
JM		 1570{
1571 struct mac80211_hwsim_data *data = hw->priv;
e8975581 1572 struct ieee80211_conf *conf = &hw->conf;
0f78231b
JB		 1573 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
1574 [IEEE80211_SMPS_AUTOMATIC] = "auto",
1575 [IEEE80211_SMPS_OFF] = "off",
1576 [IEEE80211_SMPS_STATIC] = "static",
1577 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
1578 };
1579
675a0b04
KB		 1580 if (conf->chandef.chan)
1581 wiphy_debug(hw->wiphy,
1582 "%s (freq=%d(%d - %d)/%s idle=%d ps=%d smps=%s)\n",
1583 __func__,
1584 conf->chandef.chan->center_freq,
1585 conf->chandef.center_freq1,
1586 conf->chandef.center_freq2,
1587 hwsim_chanwidths[conf->chandef.width],
1588 !!(conf->flags & IEEE80211_CONF_IDLE),
1589 !!(conf->flags & IEEE80211_CONF_PS),
1590 smps_modes[conf->smps_mode]);
1591 else
1592 wiphy_debug(hw->wiphy,
1593 "%s (freq=0 idle=%d ps=%d smps=%s)\n",
1594 __func__,
1595 !!(conf->flags & IEEE80211_CONF_IDLE),
1596 !!(conf->flags & IEEE80211_CONF_PS),
1597 smps_modes[conf->smps_mode]);
acc1e7a3 1598
70541839
JM		 1599 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1600
675a0b04 1601 data->channel = conf->chandef.chan;
e8261171 1602
361c3e04 1603 WARN_ON(data->channel && data->use_chanctx);
e8261171 1604
bdd7bd16 1605 data->power_level = conf->power_level;
4c4c671a 1606 if (!data->started || !data->beacon_int)
01e59e46
TP		 1607 tasklet_hrtimer_cancel(&data->beacon_timer);
1608 else if (!hrtimer_is_queued(&data->beacon_timer.timer)) {
c51f8783
TP		 1609 u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
1610 u32 bcn_int = data->beacon_int;
1611 u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1612
01e59e46 1613 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1614 ns_to_ktime(until_tbtt * 1000),
01e59e46
TP		 1615 HRTIMER_MODE_REL);
1616 }
acc1e7a3
JM		 1617
1618 return 0;
1619}
1620
1621
1622static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
1623 unsigned int changed_flags,
3ac64bee 1624 unsigned int *total_flags,u64 multicast)
acc1e7a3
JM		 1625{
1626 struct mac80211_hwsim_data *data = hw->priv;
1627
c96c31e4 1628 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 1629
1630 data->rx_filter = 0;
acc1e7a3
JM		 1631 if (*total_flags & FIF_ALLMULTI)
1632 data->rx_filter |= FIF_ALLMULTI;
1633
1634 *total_flags = data->rx_filter;
1635}
1636
0bb861e6
JM		 1637static void mac80211_hwsim_bcn_en_iter(void *data, u8 *mac,
1638 struct ieee80211_vif *vif)
1639{
1640 unsigned int *count = data;
1641 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1642
1643 if (vp->bcn_en)
1644 (*count)++;
1645}
1646
8aa21e6f
JB		 1647static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
1648 struct ieee80211_vif *vif,
1649 struct ieee80211_bss_conf *info,
1650 u32 changed)
1651{
fc6971d4 1652 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
57c4d7b4 1653 struct mac80211_hwsim_data *data = hw->priv;
fc6971d4 1654
8aa21e6f 1655 hwsim_check_magic(vif);
fe63bfa3 1656
0bb861e6
JM		 1657 wiphy_debug(hw->wiphy, "%s(changed=0x%x vif->addr=%pM)\n",
1658 __func__, changed, vif->addr);
fe63bfa3 1659
2d0ddec5 1660 if (changed & BSS_CHANGED_BSSID) {
c96c31e4
JP		 1661 wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
1662 __func__, info->bssid);
2d0ddec5
JB		 1663 memcpy(vp->bssid, info->bssid, ETH_ALEN);
1664 }
1665
fe63bfa3 1666 if (changed & BSS_CHANGED_ASSOC) {
c96c31e4
JP		 1667 wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
1668 info->assoc, info->aid);
fc6971d4
JM		 1669 vp->assoc = info->assoc;
1670 vp->aid = info->aid;
fe63bfa3
JM		 1671 }
1672
01e59e46 1673 if (changed & BSS_CHANGED_BEACON_ENABLED) {
56067628
JB		 1674 wiphy_debug(hw->wiphy, " BCN EN: %d (BI=%u)\n",
1675 info->enable_beacon, info->beacon_int);
0bb861e6 1676 vp->bcn_en = info->enable_beacon;
01e59e46
TP		 1677 if (data->started &&
1678 !hrtimer_is_queued(&data->beacon_timer.timer) &&
1679 info->enable_beacon) {
c51f8783
TP		 1680 u64 tsf, until_tbtt;
1681 u32 bcn_int;
56067628 1682 data->beacon_int = info->beacon_int * 1024;
c51f8783
TP		 1683 tsf = mac80211_hwsim_get_tsf(hw, vif);
1684 bcn_int = data->beacon_int;
1685 until_tbtt = bcn_int - do_div(tsf, bcn_int);
01e59e46 1686 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1687 ns_to_ktime(until_tbtt * 1000),
01e59e46 1688 HRTIMER_MODE_REL);
0bb861e6
JM		 1689 } else if (!info->enable_beacon) {
1690 unsigned int count = 0;
cdb1b805 1691 ieee80211_iterate_active_interfaces_atomic(
0bb861e6
JM		 1692 data->hw, IEEE80211_IFACE_ITER_NORMAL,
1693 mac80211_hwsim_bcn_en_iter, &count);
1694 wiphy_debug(hw->wiphy, " beaconing vifs remaining: %u",
1695 count);
56067628 1696 if (count == 0) {
0bb861e6 1697 tasklet_hrtimer_cancel(&data->beacon_timer);
56067628
JB		 1698 data->beacon_int = 0;
1699 }
0bb861e6 1700 }
57c4d7b4
JB		 1701 }
1702
fe63bfa3 1703 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
c96c31e4
JP		 1704 wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
1705 info->use_cts_prot);
fe63bfa3
JM		 1706 }
1707
1708 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
c96c31e4
JP		 1709 wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
1710 info->use_short_preamble);
fe63bfa3
JM		 1711 }
1712
1713 if (changed & BSS_CHANGED_ERP_SLOT) {
c96c31e4 1714 wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
fe63bfa3
JM		 1715 }
1716
1717 if (changed & BSS_CHANGED_HT) {
4bf88530
JB		 1718 wiphy_debug(hw->wiphy, " HT: op_mode=0x%x\n",
1719 info->ht_operation_mode);
fe63bfa3
JM		 1720 }
1721
1722 if (changed & BSS_CHANGED_BASIC_RATES) {
c96c31e4
JP		 1723 wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
1724 (unsigned long long) info->basic_rates);
fe63bfa3 1725 }
cbc668a7
JB		 1726
1727 if (changed & BSS_CHANGED_TXPOWER)
1728 wiphy_debug(hw->wiphy, " TX Power: %d dBm\n", info->txpower);
8aa21e6f
JB		 1729}
1730
1d669cbf
JB		 1731static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
1732 struct ieee80211_vif *vif,
1733 struct ieee80211_sta *sta)
1734{
1735 hwsim_check_magic(vif);
1736 hwsim_set_sta_magic(sta);
1737
1738 return 0;
1739}
1740
1741static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
1742 struct ieee80211_vif *vif,
1743 struct ieee80211_sta *sta)
1744{
1745 hwsim_check_magic(vif);
1746 hwsim_clear_sta_magic(sta);
1747
1748 return 0;
1749}
1750
8aa21e6f
JB		 1751static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
1752 struct ieee80211_vif *vif,
17741cdc
JB		 1753 enum sta_notify_cmd cmd,
1754 struct ieee80211_sta *sta)
8aa21e6f
JB		 1755{
1756 hwsim_check_magic(vif);
1d669cbf 1757
81c06523 1758 switch (cmd) {
89fad578
CL		 1759 case STA_NOTIFY_SLEEP:
1760 case STA_NOTIFY_AWAKE:
1761 /* TODO: make good use of these flags */
1762 break;
1d669cbf
JB		 1763 default:
1764 WARN(1, "Invalid sta notify: %d\n", cmd);
1765 break;
81c06523
JB		 1766 }
1767}
1768
1769static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
1770 struct ieee80211_sta *sta,
1771 bool set)
1772{
1773 hwsim_check_sta_magic(sta);
1774 return 0;
8aa21e6f 1775}
acc1e7a3 1776
1e898ff8 1777static int mac80211_hwsim_conf_tx(
8a3a3c85
EP		 1778 struct ieee80211_hw *hw,
1779 struct ieee80211_vif *vif, u16 queue,
1e898ff8
JM		 1780 const struct ieee80211_tx_queue_params *params)
1781{
c96c31e4
JP		 1782 wiphy_debug(hw->wiphy,
1783 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1784 __func__, queue,
1785 params->txop, params->cw_min,
1786 params->cw_max, params->aifs);
1e898ff8
JM		 1787 return 0;
1788}
1789
1289723e
HS		 1790static int mac80211_hwsim_get_survey(
1791 struct ieee80211_hw *hw, int idx,
1792 struct survey_info *survey)
1793{
1794 struct ieee80211_conf *conf = &hw->conf;
1795
c96c31e4 1796 wiphy_debug(hw->wiphy, "%s (idx=%d)\n", __func__, idx);
1289723e
HS		 1797
1798 if (idx != 0)
1799 return -ENOENT;
1800
1801 /* Current channel */
675a0b04 1802 survey->channel = conf->chandef.chan;
1289723e
HS		 1803
1804 /*
1805 * Magically conjured noise level --- this is only ok for simulated hardware.
1806 *
1807 * A real driver which cannot determine the real channel noise MUST NOT
1808 * report any noise, especially not a magically conjured one :-)
1809 */
1810 survey->filled = SURVEY_INFO_NOISE_DBM;
1811 survey->noise = -92;
1812
1813 return 0;
1814}
1815
aff89a9b
JB		 1816#ifdef CONFIG_NL80211_TESTMODE
1817/*
1818 * This section contains example code for using netlink
1819 * attributes with the testmode command in nl80211.
1820 */
1821
1822/* These enums need to be kept in sync with userspace */
1823enum hwsim_testmode_attr {
1824 __HWSIM_TM_ATTR_INVALID = 0,
1825 HWSIM_TM_ATTR_CMD = 1,
1826 HWSIM_TM_ATTR_PS = 2,
1827
1828 /* keep last */
1829 __HWSIM_TM_ATTR_AFTER_LAST,
1830 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1831};
1832
1833enum hwsim_testmode_cmd {
1834 HWSIM_TM_CMD_SET_PS = 0,
1835 HWSIM_TM_CMD_GET_PS = 1,
4d6d0ae2
JB		 1836 HWSIM_TM_CMD_STOP_QUEUES = 2,
1837 HWSIM_TM_CMD_WAKE_QUEUES = 3,
aff89a9b
JB		 1838};
1839
1840static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1841 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1842 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1843};
1844
5bc38193 1845static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
52981cd7 1846 struct ieee80211_vif *vif,
5bc38193 1847 void *data, int len)
aff89a9b
JB		 1848{
1849 struct mac80211_hwsim_data *hwsim = hw->priv;
1850 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1851 struct sk_buff *skb;
1852 int err, ps;
1853
1854 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
1855 hwsim_testmode_policy);
1856 if (err)
1857 return err;
1858
1859 if (!tb[HWSIM_TM_ATTR_CMD])
1860 return -EINVAL;
1861
1862 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1863 case HWSIM_TM_CMD_SET_PS:
1864 if (!tb[HWSIM_TM_ATTR_PS])
1865 return -EINVAL;
1866 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1867 return hwsim_fops_ps_write(hwsim, ps);
1868 case HWSIM_TM_CMD_GET_PS:
1869 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1870 nla_total_size(sizeof(u32)));
1871 if (!skb)
1872 return -ENOMEM;
633c9389
DM		 1873 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
1874 goto nla_put_failure;
aff89a9b 1875 return cfg80211_testmode_reply(skb);
4d6d0ae2
JB		 1876 case HWSIM_TM_CMD_STOP_QUEUES:
1877 ieee80211_stop_queues(hw);
1878 return 0;
1879 case HWSIM_TM_CMD_WAKE_QUEUES:
1880 ieee80211_wake_queues(hw);
1881 return 0;
aff89a9b
JB		 1882 default:
1883 return -EOPNOTSUPP;
1884 }
1885
1886 nla_put_failure:
1887 kfree_skb(skb);
1888 return -ENOBUFS;
1889}
1890#endif
1891
8b73d13a
JB		 1892static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1893 struct ieee80211_vif *vif,
50ea05ef 1894 struct ieee80211_ampdu_params *params)
8b73d13a 1895{
50ea05ef
SS		 1896 struct ieee80211_sta *sta = params->sta;
1897 enum ieee80211_ampdu_mlme_action action = params->action;
1898 u16 tid = params->tid;
1899
8b73d13a
JB		 1900 switch (action) {
1901 case IEEE80211_AMPDU_TX_START:
1902 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1903 break;
18b559d5
JB		 1904 case IEEE80211_AMPDU_TX_STOP_CONT:
1905 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1906 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
8b73d13a
JB		 1907 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1908 break;
1909 case IEEE80211_AMPDU_TX_OPERATIONAL:
1910 break;
1911 case IEEE80211_AMPDU_RX_START:
1912 case IEEE80211_AMPDU_RX_STOP:
1913 break;
1914 default:
1915 return -EOPNOTSUPP;
1916 }
1917
1918 return 0;
1919}
1920
77be2c54
EG		 1921static void mac80211_hwsim_flush(struct ieee80211_hw *hw,
1922 struct ieee80211_vif *vif,
1923 u32 queues, bool drop)
a80f7c0b 1924{
7882513b 1925 /* Not implemented, queues only on kernel side */
a80f7c0b
JB		 1926}
1927
e8261171 1928static void hw_scan_work(struct work_struct *work)
69068036 1929{
e8261171
JB		 1930 struct mac80211_hwsim_data *hwsim =
1931 container_of(work, struct mac80211_hwsim_data, hw_scan.work);
1932 struct cfg80211_scan_request *req = hwsim->hw_scan_request;
1933 int dwell, i;
69068036 1934
e8261171
JB		 1935 mutex_lock(&hwsim->mutex);
1936 if (hwsim->scan_chan_idx >= req->n_channels) {
7947d3e0
AS		 1937 struct cfg80211_scan_info info = {
1938 .aborted = false,
1939 };
1940
e8261171 1941 wiphy_debug(hwsim->hw->wiphy, "hw scan complete\n");
7947d3e0 1942 ieee80211_scan_completed(hwsim->hw, &info);
e8261171
JB		 1943 hwsim->hw_scan_request = NULL;
1944 hwsim->hw_scan_vif = NULL;
1945 hwsim->tmp_chan = NULL;
1946 mutex_unlock(&hwsim->mutex);
1947 return;
1948 }
1949
1950 wiphy_debug(hwsim->hw->wiphy, "hw scan %d MHz\n",
1951 req->channels[hwsim->scan_chan_idx]->center_freq);
1952
1953 hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
a8e828de
JB		 1954 if (hwsim->tmp_chan->flags & (IEEE80211_CHAN_NO_IR |
1955 IEEE80211_CHAN_RADAR) ||
e8261171
JB		 1956 !req->n_ssids) {
1957 dwell = 120;
1958 } else {
1959 dwell = 30;
1960 /* send probes */
1961 for (i = 0; i < req->n_ssids; i++) {
1962 struct sk_buff *probe;
12880d16 1963 struct ieee80211_mgmt *mgmt;
e8261171
JB		 1964
1965 probe = ieee80211_probereq_get(hwsim->hw,
339467b9 1966 hwsim->scan_addr,
e8261171
JB		 1967 req->ssids[i].ssid,
1968 req->ssids[i].ssid_len,
b9a9ada1 1969 req->ie_len);
e8261171
JB		 1970 if (!probe)
1971 continue;
b9a9ada1 1972
12880d16
JM		 1973 mgmt = (struct ieee80211_mgmt *) probe->data;
1974 memcpy(mgmt->da, req->bssid, ETH_ALEN);
1975 memcpy(mgmt->bssid, req->bssid, ETH_ALEN);
1976
b9a9ada1
JB		 1977 if (req->ie_len)
1978 memcpy(skb_put(probe, req->ie_len), req->ie,
1979 req->ie_len);
1980
e8261171
JB		 1981 local_bh_disable();
1982 mac80211_hwsim_tx_frame(hwsim->hw, probe,
1983 hwsim->tmp_chan);
1984 local_bh_enable();
1985 }
1986 }
1987 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
1988 msecs_to_jiffies(dwell));
1989 hwsim->scan_chan_idx++;
1990 mutex_unlock(&hwsim->mutex);
69068036
JB		 1991}
1992
1993static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
a060bbfe 1994 struct ieee80211_vif *vif,
c56ef672 1995 struct ieee80211_scan_request *hw_req)
69068036 1996{
e8261171 1997 struct mac80211_hwsim_data *hwsim = hw->priv;
c56ef672 1998 struct cfg80211_scan_request *req = &hw_req->req;
69068036 1999
e8261171
JB		 2000 mutex_lock(&hwsim->mutex);
2001 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
2002 mutex_unlock(&hwsim->mutex);
2003 return -EBUSY;
2004 }
2005 hwsim->hw_scan_request = req;
2006 hwsim->hw_scan_vif = vif;
2007 hwsim->scan_chan_idx = 0;
339467b9
JB		 2008 if (req->flags & NL80211_SCAN_FLAG_RANDOM_ADDR)
2009 get_random_mask_addr(hwsim->scan_addr,
2010 hw_req->req.mac_addr,
2011 hw_req->req.mac_addr_mask);
2012 else
2013 memcpy(hwsim->scan_addr, vif->addr, ETH_ALEN);
e8261171 2014 mutex_unlock(&hwsim->mutex);
69068036 2015
e8261171 2016 wiphy_debug(hw->wiphy, "hwsim hw_scan request\n");
69068036 2017
e8261171 2018 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
69068036
JB		 2019
2020 return 0;
2021}
2022
e8261171
JB		 2023static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
2024 struct ieee80211_vif *vif)
2025{
2026 struct mac80211_hwsim_data *hwsim = hw->priv;
7947d3e0
AS		 2027 struct cfg80211_scan_info info = {
2028 .aborted = true,
2029 };
e8261171
JB		 2030
2031 wiphy_debug(hw->wiphy, "hwsim cancel_hw_scan\n");
2032
2033 cancel_delayed_work_sync(&hwsim->hw_scan);
2034
2035 mutex_lock(&hwsim->mutex);
7947d3e0 2036 ieee80211_scan_completed(hwsim->hw, &info);
e8261171
JB		 2037 hwsim->tmp_chan = NULL;
2038 hwsim->hw_scan_request = NULL;
2039 hwsim->hw_scan_vif = NULL;
2040 mutex_unlock(&hwsim->mutex);
2041}
2042
a344d677
JB		 2043static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw,
2044 struct ieee80211_vif *vif,
2045 const u8 *mac_addr)
f74cb0f7
LR		 2046{
2047 struct mac80211_hwsim_data *hwsim = hw->priv;
2048
2049 mutex_lock(&hwsim->mutex);
2050
2051 if (hwsim->scanning) {
2052 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
2053 goto out;
2054 }
2055
2056 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
339467b9
JB		 2057
2058 memcpy(hwsim->scan_addr, mac_addr, ETH_ALEN);
f74cb0f7
LR		 2059 hwsim->scanning = true;
2060
2061out:
2062 mutex_unlock(&hwsim->mutex);
2063}
2064
a344d677
JB		 2065static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw,
2066 struct ieee80211_vif *vif)
f74cb0f7
LR		 2067{
2068 struct mac80211_hwsim_data *hwsim = hw->priv;
2069
2070 mutex_lock(&hwsim->mutex);
2071
2072 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
23ff98fc 2073 hwsim->scanning = false;
93803b33 2074 eth_zero_addr(hwsim->scan_addr);
f74cb0f7
LR		 2075
2076 mutex_unlock(&hwsim->mutex);
2077}
2078
661ef475
JB		 2079static void hw_roc_start(struct work_struct *work)
2080{
2081 struct mac80211_hwsim_data *hwsim =
2082 container_of(work, struct mac80211_hwsim_data, roc_start.work);
2083
2084 mutex_lock(&hwsim->mutex);
2085
2086 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC begins\n");
2087 hwsim->tmp_chan = hwsim->roc_chan;
2088 ieee80211_ready_on_channel(hwsim->hw);
2089
2090 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->roc_done,
2091 msecs_to_jiffies(hwsim->roc_duration));
2092
2093 mutex_unlock(&hwsim->mutex);
2094}
2095
e8261171
JB		 2096static void hw_roc_done(struct work_struct *work)
2097{
2098 struct mac80211_hwsim_data *hwsim =
2099 container_of(work, struct mac80211_hwsim_data, roc_done.work);
2100
2101 mutex_lock(&hwsim->mutex);
2102 ieee80211_remain_on_channel_expired(hwsim->hw);
2103 hwsim->tmp_chan = NULL;
2104 mutex_unlock(&hwsim->mutex);
2105
2106 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC expired\n");
2107}
2108
2109static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
49884568 2110 struct ieee80211_vif *vif,
e8261171 2111 struct ieee80211_channel *chan,
d339d5ca
IP		 2112 int duration,
2113 enum ieee80211_roc_type type)
e8261171
JB		 2114{
2115 struct mac80211_hwsim_data *hwsim = hw->priv;
2116
2117 mutex_lock(&hwsim->mutex);
2118 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
2119 mutex_unlock(&hwsim->mutex);
2120 return -EBUSY;
2121 }
2122
661ef475
JB		 2123 hwsim->roc_chan = chan;
2124 hwsim->roc_duration = duration;
e8261171
JB		 2125 mutex_unlock(&hwsim->mutex);
2126
2127 wiphy_debug(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
2128 chan->center_freq, duration);
661ef475 2129 ieee80211_queue_delayed_work(hw, &hwsim->roc_start, HZ/50);
e8261171 2130
e8261171
JB		 2131 return 0;
2132}
2133
2134static int mac80211_hwsim_croc(struct ieee80211_hw *hw)
2135{
2136 struct mac80211_hwsim_data *hwsim = hw->priv;
2137
661ef475 2138 cancel_delayed_work_sync(&hwsim->roc_start);
e8261171
JB		 2139 cancel_delayed_work_sync(&hwsim->roc_done);
2140
2141 mutex_lock(&hwsim->mutex);
2142 hwsim->tmp_chan = NULL;
2143 mutex_unlock(&hwsim->mutex);
2144
2145 wiphy_debug(hw->wiphy, "hwsim ROC canceled\n");
2146
2147 return 0;
2148}
2149
2150static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
2151 struct ieee80211_chanctx_conf *ctx)
2152{
2153 hwsim_set_chanctx_magic(ctx);
4bf88530
JB		 2154 wiphy_debug(hw->wiphy,
2155 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2156 ctx->def.chan->center_freq, ctx->def.width,
2157 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 2158 return 0;
2159}
2160
2161static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
2162 struct ieee80211_chanctx_conf *ctx)
2163{
4bf88530
JB		 2164 wiphy_debug(hw->wiphy,
2165 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2166 ctx->def.chan->center_freq, ctx->def.width,
2167 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 2168 hwsim_check_chanctx_magic(ctx);
2169 hwsim_clear_chanctx_magic(ctx);
2170}
2171
2172static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
2173 struct ieee80211_chanctx_conf *ctx,
2174 u32 changed)
2175{
2176 hwsim_check_chanctx_magic(ctx);
4bf88530
JB		 2177 wiphy_debug(hw->wiphy,
2178 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2179 ctx->def.chan->center_freq, ctx->def.width,
2180 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 2181}
2182
2183static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
2184 struct ieee80211_vif *vif,
2185 struct ieee80211_chanctx_conf *ctx)
2186{
2187 hwsim_check_magic(vif);
2188 hwsim_check_chanctx_magic(ctx);
2189
2190 return 0;
2191}
2192
2193static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
2194 struct ieee80211_vif *vif,
2195 struct ieee80211_chanctx_conf *ctx)
2196{
2197 hwsim_check_magic(vif);
2198 hwsim_check_chanctx_magic(ctx);
2199}
2200
2155c3f8
BG		 2201static const char mac80211_hwsim_gstrings_stats[][ETH_GSTRING_LEN] = {
2202 "tx_pkts_nic",
2203 "tx_bytes_nic",
2204 "rx_pkts_nic",
2205 "rx_bytes_nic",
2206 "d_tx_dropped",
2207 "d_tx_failed",
2208 "d_ps_mode",
2209 "d_group",
2210 "d_tx_power",
2211};
2212
2213#define MAC80211_HWSIM_SSTATS_LEN ARRAY_SIZE(mac80211_hwsim_gstrings_stats)
2214
2215static void mac80211_hwsim_get_et_strings(struct ieee80211_hw *hw,
2216 struct ieee80211_vif *vif,
2217 u32 sset, u8 *data)
2218{
2219 if (sset == ETH_SS_STATS)
2220 memcpy(data, *mac80211_hwsim_gstrings_stats,
2221 sizeof(mac80211_hwsim_gstrings_stats));
2222}
2223
2224static int mac80211_hwsim_get_et_sset_count(struct ieee80211_hw *hw,
2225 struct ieee80211_vif *vif, int sset)
2226{
2227 if (sset == ETH_SS_STATS)
2228 return MAC80211_HWSIM_SSTATS_LEN;
2229 return 0;
2230}
2231
2232static void mac80211_hwsim_get_et_stats(struct ieee80211_hw *hw,
2233 struct ieee80211_vif *vif,
2234 struct ethtool_stats *stats, u64 *data)
2235{
2236 struct mac80211_hwsim_data *ar = hw->priv;
2237 int i = 0;
2238
2239 data[i++] = ar->tx_pkts;
2240 data[i++] = ar->tx_bytes;
2241 data[i++] = ar->rx_pkts;
2242 data[i++] = ar->rx_bytes;
2243 data[i++] = ar->tx_dropped;
2244 data[i++] = ar->tx_failed;
2245 data[i++] = ar->ps;
2246 data[i++] = ar->group;
2247 data[i++] = ar->power_level;
2248
2249 WARN_ON(i != MAC80211_HWSIM_SSTATS_LEN);
2250}
2251
38ed5048 2252static const struct ieee80211_ops mac80211_hwsim_ops = {
acc1e7a3
JM		 2253 .tx = mac80211_hwsim_tx,
2254 .start = mac80211_hwsim_start,
2255 .stop = mac80211_hwsim_stop,
2256 .add_interface = mac80211_hwsim_add_interface,
c35d0270 2257 .change_interface = mac80211_hwsim_change_interface,
acc1e7a3
JM		 2258 .remove_interface = mac80211_hwsim_remove_interface,
2259 .config = mac80211_hwsim_config,
2260 .configure_filter = mac80211_hwsim_configure_filter,
8aa21e6f 2261 .bss_info_changed = mac80211_hwsim_bss_info_changed,
1d669cbf
JB		 2262 .sta_add = mac80211_hwsim_sta_add,
2263 .sta_remove = mac80211_hwsim_sta_remove,
8aa21e6f 2264 .sta_notify = mac80211_hwsim_sta_notify,
81c06523 2265 .set_tim = mac80211_hwsim_set_tim,
1e898ff8 2266 .conf_tx = mac80211_hwsim_conf_tx,
1289723e 2267 .get_survey = mac80211_hwsim_get_survey,
aff89a9b 2268 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
8b73d13a 2269 .ampdu_action = mac80211_hwsim_ampdu_action,
f74cb0f7
LR		 2270 .sw_scan_start = mac80211_hwsim_sw_scan,
2271 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
a80f7c0b 2272 .flush = mac80211_hwsim_flush,
12ce8ba3
JC		 2273 .get_tsf = mac80211_hwsim_get_tsf,
2274 .set_tsf = mac80211_hwsim_set_tsf,
2155c3f8
BG		 2275 .get_et_sset_count = mac80211_hwsim_get_et_sset_count,
2276 .get_et_stats = mac80211_hwsim_get_et_stats,
2277 .get_et_strings = mac80211_hwsim_get_et_strings,
acc1e7a3
JM		 2278};
2279
38ed5048 2280static struct ieee80211_ops mac80211_hwsim_mchan_ops;
acc1e7a3 2281
62759361
JR		 2282struct hwsim_new_radio_params {
2283 unsigned int channels;
2284 const char *reg_alpha2;
2285 const struct ieee80211_regdomain *regd;
2286 bool reg_strict;
2287 bool p2p_device;
2288 bool use_chanctx;
2289 bool destroy_on_close;
2290 const char *hwname;
2291 bool no_vif;
2292};
2293
2294static void hwsim_mcast_config_msg(struct sk_buff *mcast_skb,
2295 struct genl_info *info)
2296{
2297 if (info)
92c14d9b
JB		 2298 genl_notify(&hwsim_genl_family, mcast_skb, info,
2299 HWSIM_MCGRP_CONFIG, GFP_KERNEL);
62759361
JR		 2300 else
2301 genlmsg_multicast(&hwsim_genl_family, mcast_skb, 0,
2302 HWSIM_MCGRP_CONFIG, GFP_KERNEL);
2303}
2304
c449981c
PF		 2305static int append_radio_msg(struct sk_buff *skb, int id,
2306 struct hwsim_new_radio_params *param)
62759361 2307{
62759361
JR		 2308 int ret;
2309
62759361
JR		 2310 ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
2311 if (ret < 0)
c449981c 2312 return ret;
62759361
JR		 2313
2314 if (param->channels) {
2315 ret = nla_put_u32(skb, HWSIM_ATTR_CHANNELS, param->channels);
2316 if (ret < 0)
c449981c 2317 return ret;
62759361
JR		 2318 }
2319
2320 if (param->reg_alpha2) {
2321 ret = nla_put(skb, HWSIM_ATTR_REG_HINT_ALPHA2, 2,
2322 param->reg_alpha2);
2323 if (ret < 0)
c449981c 2324 return ret;
62759361
JR		 2325 }
2326
2327 if (param->regd) {
2328 int i;
2329
5875755c
JB		 2330 for (i = 0; i < ARRAY_SIZE(hwsim_world_regdom_custom); i++) {
2331 if (hwsim_world_regdom_custom[i] != param->regd)
2332 continue;
62759361 2333
62759361
JR		 2334 ret = nla_put_u32(skb, HWSIM_ATTR_REG_CUSTOM_REG, i);
2335 if (ret < 0)
c449981c 2336 return ret;
5875755c 2337 break;
62759361
JR		 2338 }
2339 }
2340
2341 if (param->reg_strict) {
2342 ret = nla_put_flag(skb, HWSIM_ATTR_REG_STRICT_REG);
2343 if (ret < 0)
c449981c 2344 return ret;
62759361
JR		 2345 }
2346
2347 if (param->p2p_device) {
2348 ret = nla_put_flag(skb, HWSIM_ATTR_SUPPORT_P2P_DEVICE);
2349 if (ret < 0)
c449981c 2350 return ret;
62759361
JR		 2351 }
2352
2353 if (param->use_chanctx) {
2354 ret = nla_put_flag(skb, HWSIM_ATTR_USE_CHANCTX);
2355 if (ret < 0)
c449981c 2356 return ret;
62759361
JR		 2357 }
2358
2359 if (param->hwname) {
2360 ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME,
2361 strlen(param->hwname), param->hwname);
2362 if (ret < 0)
c449981c 2363 return ret;
62759361
JR		 2364 }
2365
c449981c 2366 return 0;
62759361
JR		 2367}
2368
c449981c 2369static void hwsim_mcast_new_radio(int id, struct genl_info *info,
62759361
JR		 2370 struct hwsim_new_radio_params *param)
2371{
2372 struct sk_buff *mcast_skb;
c449981c 2373 void *data;
62759361 2374
c449981c 2375 mcast_skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
62759361
JR		 2376 if (!mcast_skb)
2377 return;
2378
c449981c
PF		 2379 data = genlmsg_put(mcast_skb, 0, 0, &hwsim_genl_family, 0,
2380 HWSIM_CMD_NEW_RADIO);
2381 if (!data)
2382 goto out_err;
2383
2384 if (append_radio_msg(mcast_skb, id, param) < 0)
2385 goto out_err;
2386
2387 genlmsg_end(mcast_skb, data);
2388
62759361 2389 hwsim_mcast_config_msg(mcast_skb, info);
c449981c
PF		 2390 return;
2391
2392out_err:
2393 genlmsg_cancel(mcast_skb, data);
2394 nlmsg_free(mcast_skb);
62759361
JR		 2395}
2396
2397static int mac80211_hwsim_new_radio(struct genl_info *info,
2398 struct hwsim_new_radio_params *param)
acc1e7a3 2399{
de0421d5
JB		 2400 int err;
2401 u8 addr[ETH_ALEN];
e4afb603 2402 struct mac80211_hwsim_data *data;
de0421d5 2403 struct ieee80211_hw *hw;
57fbcce3 2404 enum nl80211_band band;
de0421d5 2405 const struct ieee80211_ops *ops = &mac80211_hwsim_ops;
100cb9ff 2406 struct net *net;
de0421d5 2407 int idx;
0e057d73 2408
62759361 2409 if (WARN_ON(param->channels > 1 && !param->use_chanctx))
361c3e04
LC		 2410 return -EINVAL;
2411
0e057d73 2412 spin_lock_bh(&hwsim_radio_lock);
de0421d5 2413 idx = hwsim_radio_idx++;
0e057d73
JB		 2414 spin_unlock_bh(&hwsim_radio_lock);
2415
62759361 2416 if (param->use_chanctx)
de0421d5 2417 ops = &mac80211_hwsim_mchan_ops;
62759361 2418 hw = ieee80211_alloc_hw_nm(sizeof(*data), ops, param->hwname);
de0421d5
JB		 2419 if (!hw) {
2420 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw failed\n");
2421 err = -ENOMEM;
2422 goto failed;
2423 }
100cb9ff
MW		 2424
2425 if (info)
2426 net = genl_info_net(info);
2427 else
2428 net = &init_net;
2429 wiphy_net_set(hw->wiphy, net);
2430
de0421d5
JB		 2431 data = hw->priv;
2432 data->hw = hw;
acc1e7a3 2433
de0421d5
JB		 2434 data->dev = device_create(hwsim_class, NULL, 0, hw, "hwsim%d", idx);
2435 if (IS_ERR(data->dev)) {
2436 printk(KERN_DEBUG
2437 "mac80211_hwsim: device_create failed (%ld)\n",
2438 PTR_ERR(data->dev));
2439 err = -ENOMEM;
2440 goto failed_drvdata;
2441 }
2442 data->dev->driver = &mac80211_hwsim_driver.driver;
2443 err = device_bind_driver(data->dev);
2444 if (err != 0) {
2445 printk(KERN_DEBUG "mac80211_hwsim: device_bind_driver failed (%d)\n",
2446 err);
805dbe17 2447 goto failed_bind;
acc1e7a3 2448 }
acc1e7a3 2449
de0421d5 2450 skb_queue_head_init(&data->pending);
acc1e7a3 2451
de0421d5 2452 SET_IEEE80211_DEV(hw, data->dev);
93803b33 2453 eth_zero_addr(addr);
de0421d5
JB		 2454 addr[0] = 0x02;
2455 addr[3] = idx >> 8;
2456 addr[4] = idx;
2457 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
2458 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
2459 data->addresses[1].addr[0] |= 0x40;
2460 hw->wiphy->n_addresses = 2;
2461 hw->wiphy->addresses = data->addresses;
fc6971d4 2462
62759361
JR		 2463 data->channels = param->channels;
2464 data->use_chanctx = param->use_chanctx;
bc791098 2465 data->idx = idx;
62759361
JR		 2466 data->destroy_on_close = param->destroy_on_close;
2467 if (info)
2468 data->portid = info->snd_portid;
fc6971d4 2469
361c3e04 2470 if (data->use_chanctx) {
de0421d5
JB		 2471 hw->wiphy->max_scan_ssids = 255;
2472 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
2473 hw->wiphy->max_remain_on_channel_duration = 1000;
de0421d5 2474 hw->wiphy->iface_combinations = &data->if_combination;
62759361 2475 if (param->p2p_device)
8c66a3d9
JB		 2476 data->if_combination = hwsim_if_comb_p2p_dev[0];
2477 else
2478 data->if_combination = hwsim_if_comb[0];
f7736f50
IP		 2479 hw->wiphy->n_iface_combinations = 1;
2480 /* For channels > 1 DFS is not allowed */
2481 data->if_combination.radar_detect_widths = 0;
b59ec8dd 2482 data->if_combination.num_different_channels = data->channels;
62759361 2483 } else if (param->p2p_device) {
8c66a3d9
JB		 2484 hw->wiphy->iface_combinations = hwsim_if_comb_p2p_dev;
2485 hw->wiphy->n_iface_combinations =
2486 ARRAY_SIZE(hwsim_if_comb_p2p_dev);
de0421d5
JB		 2487 } else {
2488 hw->wiphy->iface_combinations = hwsim_if_comb;
2489 hw->wiphy->n_iface_combinations = ARRAY_SIZE(hwsim_if_comb);
2490 }
acc1e7a3 2491
661ef475 2492 INIT_DELAYED_WORK(&data->roc_start, hw_roc_start);
de0421d5
JB		 2493 INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
2494 INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
7882513b 2495
de0421d5
JB		 2496 hw->queues = 5;
2497 hw->offchannel_tx_hw_queue = 4;
2498 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2499 BIT(NL80211_IFTYPE_AP) |
2500 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2501 BIT(NL80211_IFTYPE_P2P_GO) |
2502 BIT(NL80211_IFTYPE_ADHOC) |
8c66a3d9
JB		 2503 BIT(NL80211_IFTYPE_MESH_POINT);
2504
62759361 2505 if (param->p2p_device)
8c66a3d9 2506 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_DEVICE);
fc6971d4 2507
30686bf7
JB		 2508 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
2509 ieee80211_hw_set(hw, CHANCTX_STA_CSA);
2510 ieee80211_hw_set(hw, SUPPORTS_HT_CCK_RATES);
2511 ieee80211_hw_set(hw, QUEUE_CONTROL);
2512 ieee80211_hw_set(hw, WANT_MONITOR_VIF);
2513 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
2514 ieee80211_hw_set(hw, MFP_CAPABLE);
2515 ieee80211_hw_set(hw, SIGNAL_DBM);
33c2f538 2516 ieee80211_hw_set(hw, TDLS_WIDER_BW);
de0421d5 2517 if (rctbl)
30686bf7 2518 ieee80211_hw_set(hw, SUPPORTS_RC_TABLE);
fc6971d4 2519
de0421d5
JB		 2520 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2521 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
0037db63
AO		 2522 WIPHY_FLAG_AP_UAPSD |
2523 WIPHY_FLAG_HAS_CHANNEL_SWITCH;
0d8614b4
EP		 2524 hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR |
2525 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
2526 NL80211_FEATURE_STATIC_SMPS |
339467b9
JB		 2527 NL80211_FEATURE_DYNAMIC_SMPS |
2528 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
00eeccc4 2529 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS);
fc6971d4 2530
de0421d5
JB		 2531 /* ask mac80211 to reserve space for magic */
2532 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
2533 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
2534 hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
fc6971d4 2535
de0421d5
JB		 2536 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
2537 sizeof(hwsim_channels_2ghz));
2538 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
2539 sizeof(hwsim_channels_5ghz));
2540 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
7882513b 2541
57fbcce3 2542 for (band = NL80211_BAND_2GHZ; band < NUM_NL80211_BANDS; band++) {
de0421d5
JB		 2543 struct ieee80211_supported_band *sband = &data->bands[band];
2544 switch (band) {
57fbcce3 2545 case NL80211_BAND_2GHZ:
de0421d5
JB		 2546 sband->channels = data->channels_2ghz;
2547 sband->n_channels = ARRAY_SIZE(hwsim_channels_2ghz);
2548 sband->bitrates = data->rates;
2549 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
2550 break;
57fbcce3 2551 case NL80211_BAND_5GHZ:
de0421d5
JB		 2552 sband->channels = data->channels_5ghz;
2553 sband->n_channels = ARRAY_SIZE(hwsim_channels_5ghz);
2554 sband->bitrates = data->rates + 4;
2555 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
f33f8483
IP		 2556
2557 sband->vht_cap.vht_supported = true;
2558 sband->vht_cap.cap =
2559 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
2560 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
2561 IEEE80211_VHT_CAP_RXLDPC |
2562 IEEE80211_VHT_CAP_SHORT_GI_80 |
2563 IEEE80211_VHT_CAP_SHORT_GI_160 |
2564 IEEE80211_VHT_CAP_TXSTBC |
2565 IEEE80211_VHT_CAP_RXSTBC_1 |
2566 IEEE80211_VHT_CAP_RXSTBC_2 |
2567 IEEE80211_VHT_CAP_RXSTBC_3 |
2568 IEEE80211_VHT_CAP_RXSTBC_4 |
2569 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
2570 sband->vht_cap.vht_mcs.rx_mcs_map =
8aca9b29
IP		 2571 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
2572 IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 |
f33f8483 2573 IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
8aca9b29
IP		 2574 IEEE80211_VHT_MCS_SUPPORT_0_9 << 6 |
2575 IEEE80211_VHT_MCS_SUPPORT_0_9 << 8 |
f33f8483
IP		 2576 IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
2577 IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
8aca9b29 2578 IEEE80211_VHT_MCS_SUPPORT_0_9 << 14);
f33f8483
IP		 2579 sband->vht_cap.vht_mcs.tx_mcs_map =
2580 sband->vht_cap.vht_mcs.rx_mcs_map;
de0421d5
JB		 2581 break;
2582 default:
2583 continue;
2584 }
acc1e7a3 2585
de0421d5
JB		 2586 sband->ht_cap.ht_supported = true;
2587 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
2588 IEEE80211_HT_CAP_GRN_FLD |
e49786db 2589 IEEE80211_HT_CAP_SGI_20 |
de0421d5
JB		 2590 IEEE80211_HT_CAP_SGI_40 |
2591 IEEE80211_HT_CAP_DSSSCCK40;
2592 sband->ht_cap.ampdu_factor = 0x3;
2593 sband->ht_cap.ampdu_density = 0x6;
2594 memset(&sband->ht_cap.mcs, 0,
2595 sizeof(sband->ht_cap.mcs));
2596 sband->ht_cap.mcs.rx_mask[0] = 0xff;
2597 sband->ht_cap.mcs.rx_mask[1] = 0xff;
2598 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
fc6971d4 2599
de0421d5 2600 hw->wiphy->bands[band] = sband;
de0421d5 2601 }
acc1e7a3 2602
de0421d5
JB		 2603 /* By default all radios belong to the first group */
2604 data->group = 1;
2605 mutex_init(&data->mutex);
fc6971d4 2606
100cb9ff
MW		 2607 data->netgroup = hwsim_net_get_netgroup(net);
2608
de0421d5
JB		 2609 /* Enable frame retransmissions for lossy channels */
2610 hw->max_rates = 4;
2611 hw->max_rate_tries = 11;
fc6971d4 2612
d5d011b4
JM		 2613 hw->wiphy->vendor_commands = mac80211_hwsim_vendor_commands;
2614 hw->wiphy->n_vendor_commands =
2615 ARRAY_SIZE(mac80211_hwsim_vendor_commands);
2616 hw->wiphy->vendor_events = mac80211_hwsim_vendor_events;
2617 hw->wiphy->n_vendor_events = ARRAY_SIZE(mac80211_hwsim_vendor_events);
2618
62759361 2619 if (param->reg_strict)
26b0e411 2620 hw->wiphy->regulatory_flags |= REGULATORY_STRICT_REG;
62759361 2621 if (param->regd) {
93d638d4 2622 data->regd = param->regd;
26b0e411 2623 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
62759361 2624 wiphy_apply_custom_regulatory(hw->wiphy, param->regd);
26b0e411
JB		 2625 /* give the regulatory workqueue a chance to run */
2626 schedule_timeout_interruptible(1);
2627 }
fc6971d4 2628
62759361 2629 if (param->no_vif)
30686bf7 2630 ieee80211_hw_set(hw, NO_AUTO_VIF);
9a0cb89a 2631
de0421d5
JB		 2632 err = ieee80211_register_hw(hw);
2633 if (err < 0) {
2634 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_register_hw failed (%d)\n",
2635 err);
2636 goto failed_hw;
2637 }
fc6971d4 2638
de0421d5 2639 wiphy_debug(hw->wiphy, "hwaddr %pM registered\n", hw->wiphy->perm_addr);
fc6971d4 2640
93d638d4
PF		 2641 if (param->reg_alpha2) {
2642 data->alpha2[0] = param->reg_alpha2[0];
2643 data->alpha2[1] = param->reg_alpha2[1];
62759361 2644 regulatory_hint(hw->wiphy, param->reg_alpha2);
93d638d4 2645 }
7882513b 2646
de0421d5
JB		 2647 data->debugfs = debugfs_create_dir("hwsim", hw->wiphy->debugfsdir);
2648 debugfs_create_file("ps", 0666, data->debugfs, data, &hwsim_fops_ps);
2649 debugfs_create_file("group", 0666, data->debugfs, data,
2650 &hwsim_fops_group);
361c3e04 2651 if (!data->use_chanctx)
de0421d5
JB		 2652 debugfs_create_file("dfs_simulate_radar", 0222,
2653 data->debugfs,
2654 data, &hwsim_simulate_radar);
fc6971d4 2655
de0421d5
JB		 2656 tasklet_hrtimer_init(&data->beacon_timer,
2657 mac80211_hwsim_beacon,
2658 CLOCK_MONOTONIC_RAW, HRTIMER_MODE_ABS);
fc6971d4 2659
de0421d5
JB		 2660 spin_lock_bh(&hwsim_radio_lock);
2661 list_add_tail(&data->list, &hwsim_radios);
2662 spin_unlock_bh(&hwsim_radio_lock);
fc6971d4 2663
62759361 2664 if (idx > 0)
c449981c 2665 hwsim_mcast_new_radio(idx, info, param);
62759361 2666
bc791098 2667 return idx;
fc6971d4 2668
de0421d5 2669failed_hw:
805dbe17
JM		 2670 device_release_driver(data->dev);
2671failed_bind:
de0421d5
JB		 2672 device_unregister(data->dev);
2673failed_drvdata:
2674 ieee80211_free_hw(hw);
2675failed:
2676 return err;
fc6971d4
JM		 2677}
2678
579a05f2
JR		 2679static void hwsim_mcast_del_radio(int id, const char *hwname,
2680 struct genl_info *info)
fc6971d4 2681{
579a05f2
JR		 2682 struct sk_buff *skb;
2683 void *data;
2684 int ret;
2685
2686 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
2687 if (!skb)
2688 return;
2689
2690 data = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
2691 HWSIM_CMD_DEL_RADIO);
2692 if (!data)
2693 goto error;
2694
2695 ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
2696 if (ret < 0)
2697 goto error;
2698
b9995f83
JR		 2699 ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME, strlen(hwname),
2700 hwname);
2701 if (ret < 0)
2702 goto error;
579a05f2
JR		 2703
2704 genlmsg_end(skb, data);
2705
2706 hwsim_mcast_config_msg(skb, info);
2707
2708 return;
2709
2710error:
2711 nlmsg_free(skb);
2712}
2713
2714static void mac80211_hwsim_del_radio(struct mac80211_hwsim_data *data,
2715 const char *hwname,
2716 struct genl_info *info)
2717{
2718 hwsim_mcast_del_radio(data->idx, hwname, info);
de0421d5
JB		 2719 debugfs_remove_recursive(data->debugfs);
2720 ieee80211_unregister_hw(data->hw);
2721 device_release_driver(data->dev);
2722 device_unregister(data->dev);
2723 ieee80211_free_hw(data->hw);
fc6971d4
JM		 2724}
2725
93d638d4
PF		 2726static int mac80211_hwsim_get_radio(struct sk_buff *skb,
2727 struct mac80211_hwsim_data *data,
2728 u32 portid, u32 seq,
2729 struct netlink_callback *cb, int flags)
2730{
2731 void *hdr;
2732 struct hwsim_new_radio_params param = { };
2733 int res = -EMSGSIZE;
2734
2735 hdr = genlmsg_put(skb, portid, seq, &hwsim_genl_family, flags,
2736 HWSIM_CMD_GET_RADIO);
2737 if (!hdr)
2738 return -EMSGSIZE;
2739
2740 if (cb)
2741 genl_dump_check_consistent(cb, hdr, &hwsim_genl_family);
2742
b0ad5e8b
PF		 2743 if (data->alpha2[0] && data->alpha2[1])
2744 param.reg_alpha2 = data->alpha2;
2745
93d638d4
PF		 2746 param.reg_strict = !!(data->hw->wiphy->regulatory_flags &
2747 REGULATORY_STRICT_REG);
2748 param.p2p_device = !!(data->hw->wiphy->interface_modes &
2749 BIT(NL80211_IFTYPE_P2P_DEVICE));
2750 param.use_chanctx = data->use_chanctx;
2751 param.regd = data->regd;
2752 param.channels = data->channels;
2753 param.hwname = wiphy_name(data->hw->wiphy);
2754
2755 res = append_radio_msg(skb, data->idx, &param);
2756 if (res < 0)
2757 goto out_err;
2758
053c095a
JB		 2759 genlmsg_end(skb, hdr);
2760 return 0;
93d638d4
PF		 2761
2762out_err:
2763 genlmsg_cancel(skb, hdr);
2764 return res;
2765}
2766
de0421d5 2767static void mac80211_hwsim_free(void)
fc6971d4 2768{
de0421d5 2769 struct mac80211_hwsim_data *data;
fc6971d4 2770
de0421d5
JB		 2771 spin_lock_bh(&hwsim_radio_lock);
2772 while ((data = list_first_entry_or_null(&hwsim_radios,
2773 struct mac80211_hwsim_data,
2774 list))) {
2775 list_del(&data->list);
2776 spin_unlock_bh(&hwsim_radio_lock);
b9995f83
JR		 2777 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
2778 NULL);
de0421d5 2779 spin_lock_bh(&hwsim_radio_lock);
fc6971d4 2780 }
de0421d5
JB		 2781 spin_unlock_bh(&hwsim_radio_lock);
2782 class_destroy(hwsim_class);
bba05e3d
JD		 2783}
2784
de0421d5
JB		 2785static const struct net_device_ops hwsim_netdev_ops = {
2786 .ndo_start_xmit = hwsim_mon_xmit,
de0421d5
JB		 2787 .ndo_set_mac_address = eth_mac_addr,
2788 .ndo_validate_addr = eth_validate_addr,
2789};
73606d00 2790
de0421d5 2791static void hwsim_mon_setup(struct net_device *dev)
73606d00 2792{
de0421d5
JB		 2793 dev->netdev_ops = &hwsim_netdev_ops;
2794 dev->destructor = free_netdev;
2795 ether_setup(dev);
3db6da1f 2796 dev->priv_flags |= IFF_NO_QUEUE;
de0421d5 2797 dev->type = ARPHRD_IEEE80211_RADIOTAP;
93803b33 2798 eth_zero_addr(dev->dev_addr);
de0421d5 2799 dev->dev_addr[0] = 0x12;
73606d00
DW		 2800}
2801
9ddd12af 2802static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(const u8 *addr)
7882513b
JL		 2803{
2804 struct mac80211_hwsim_data *data;
2805 bool _found = false;
2806
2807 spin_lock_bh(&hwsim_radio_lock);
2808 list_for_each_entry(data, &hwsim_radios, list) {
354210f8 2809 if (memcmp(data->addresses[1].addr, addr, ETH_ALEN) == 0) {
7882513b
JL		 2810 _found = true;
2811 break;
2812 }
2813 }
2814 spin_unlock_bh(&hwsim_radio_lock);
2815
2816 if (!_found)
2817 return NULL;
2818
2819 return data;
2820}
2821
f21e4d8e
MW		 2822static void hwsim_register_wmediumd(struct net *net, u32 portid)
2823{
2824 struct mac80211_hwsim_data *data;
2825
2826 hwsim_net_set_wmediumd(net, portid);
2827
2828 spin_lock_bh(&hwsim_radio_lock);
2829 list_for_each_entry(data, &hwsim_radios, list) {
2830 if (data->netgroup == hwsim_net_get_netgroup(net))
2831 data->wmediumd = portid;
2832 }
2833 spin_unlock_bh(&hwsim_radio_lock);
2834}
2835
7882513b
JL		 2836static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
2837 struct genl_info *info)
2838{
2839
2840 struct ieee80211_hdr *hdr;
2841 struct mac80211_hwsim_data *data2;
2842 struct ieee80211_tx_info *txi;
2843 struct hwsim_tx_rate *tx_attempts;
959eb2fd 2844 u64 ret_skb_cookie;
7882513b 2845 struct sk_buff *skb, *tmp;
9ddd12af 2846 const u8 *src;
7882513b 2847 unsigned int hwsim_flags;
7882513b
JL		 2848 int i;
2849 bool found = false;
2850
2851 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
9ddd12af
JB		 2852 !info->attrs[HWSIM_ATTR_FLAGS] ||
2853 !info->attrs[HWSIM_ATTR_COOKIE] ||
62397da5 2854 !info->attrs[HWSIM_ATTR_SIGNAL] ||
9ddd12af 2855 !info->attrs[HWSIM_ATTR_TX_INFO])
7882513b
JL		 2856 goto out;
2857
9ddd12af 2858 src = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
7882513b 2859 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
959eb2fd 2860 ret_skb_cookie = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
7882513b
JL		 2861
2862 data2 = get_hwsim_data_ref_from_addr(src);
9ddd12af 2863 if (!data2)
7882513b
JL		 2864 goto out;
2865
f21e4d8e
MW		 2866 if (hwsim_net_get_netgroup(genl_info_net(info)) != data2->netgroup)
2867 goto out;
2868
2869 if (info->snd_portid != data2->wmediumd)
2870 goto out;
2871
7882513b
JL		 2872 /* look for the skb matching the cookie passed back from user */
2873 skb_queue_walk_safe(&data2->pending, skb, tmp) {
959eb2fd
JB		 2874 u64 skb_cookie;
2875
2876 txi = IEEE80211_SKB_CB(skb);
2877 skb_cookie = (u64)(uintptr_t)txi->rate_driver_data[0];
2878
2879 if (skb_cookie == ret_skb_cookie) {
7882513b
JL		 2880 skb_unlink(skb, &data2->pending);
2881 found = true;
2882 break;
2883 }
2884 }
2885
2886 /* not found */
2887 if (!found)
2888 goto out;
2889
2890 /* Tx info received because the frame was broadcasted on user space,
2891 so we get all the necessary info: tx attempts and skb control buff */
2892
2893 tx_attempts = (struct hwsim_tx_rate *)nla_data(
2894 info->attrs[HWSIM_ATTR_TX_INFO]);
2895
2896 /* now send back TX status */
2897 txi = IEEE80211_SKB_CB(skb);
2898
7882513b
JL		 2899 ieee80211_tx_info_clear_status(txi);
2900
2901 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
2902 txi->status.rates[i].idx = tx_attempts[i].idx;
2903 txi->status.rates[i].count = tx_attempts[i].count;
2904 /*txi->status.rates[i].flags = 0;*/
2905 }
2906
2907 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
2908
2909 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
2910 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
2911 if (skb->len >= 16) {
2912 hdr = (struct ieee80211_hdr *) skb->data;
c0e30763 2913 mac80211_hwsim_monitor_ack(data2->channel,
e8261171 2914 hdr->addr2);
7882513b 2915 }
06cf5c4c 2916 txi->flags |= IEEE80211_TX_STAT_ACK;
7882513b
JL		 2917 }
2918 ieee80211_tx_status_irqsafe(data2->hw, skb);
2919 return 0;
2920out:
2921 return -EINVAL;
2922
2923}
2924
2925static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
2926 struct genl_info *info)
2927{
e8261171 2928 struct mac80211_hwsim_data *data2;
7882513b 2929 struct ieee80211_rx_status rx_status;
9ddd12af 2930 const u8 *dst;
7882513b 2931 int frame_data_len;
9ddd12af 2932 void *frame_data;
7882513b
JL		 2933 struct sk_buff *skb = NULL;
2934
2935 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
e8261171
JB		 2936 !info->attrs[HWSIM_ATTR_FRAME] ||
2937 !info->attrs[HWSIM_ATTR_RX_RATE] ||
2938 !info->attrs[HWSIM_ATTR_SIGNAL])
7882513b
JL		 2939 goto out;
2940
9ddd12af 2941 dst = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
7882513b 2942 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
9ddd12af 2943 frame_data = (void *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
7882513b
JL		 2944
2945 /* Allocate new skb here */
2946 skb = alloc_skb(frame_data_len, GFP_KERNEL);
2947 if (skb == NULL)
2948 goto err;
2949
9ddd12af 2950 if (frame_data_len > IEEE80211_MAX_DATA_LEN)
7882513b
JL		 2951 goto err;
2952
9ddd12af
JB		 2953 /* Copy the data */
2954 memcpy(skb_put(skb, frame_data_len), frame_data, frame_data_len);
7882513b 2955
9ddd12af
JB		 2956 data2 = get_hwsim_data_ref_from_addr(dst);
2957 if (!data2)
7882513b
JL		 2958 goto out;
2959
f21e4d8e
MW		 2960 if (hwsim_net_get_netgroup(genl_info_net(info)) != data2->netgroup)
2961 goto out;
2962
2963 if (info->snd_portid != data2->wmediumd)
2964 goto out;
2965
7882513b
JL		 2966 /* check if radio is configured properly */
2967
e8261171 2968 if (data2->idle || !data2->started)
7882513b
JL		 2969 goto out;
2970
9ddd12af 2971 /* A frame is received from user space */
7882513b 2972 memset(&rx_status, 0, sizeof(rx_status));
641cf2a5
AW		 2973 if (info->attrs[HWSIM_ATTR_FREQ]) {
2974 /* throw away off-channel packets, but allow both the temporary
2975 * ("hw" scan/remain-on-channel) and regular channel, since the
2976 * internal datapath also allows this
2977 */
2978 mutex_lock(&data2->mutex);
2979 rx_status.freq = nla_get_u32(info->attrs[HWSIM_ATTR_FREQ]);
2980
2981 if (rx_status.freq != data2->channel->center_freq &&
2982 (!data2->tmp_chan ||
2983 rx_status.freq != data2->tmp_chan->center_freq)) {
2984 mutex_unlock(&data2->mutex);
2985 goto out;
2986 }
2987 mutex_unlock(&data2->mutex);
2988 } else {
2989 rx_status.freq = data2->channel->center_freq;
2990 }
2991
7882513b
JL		 2992 rx_status.band = data2->channel->band;
2993 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
2994 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
2995
2996 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
2155c3f8
BG		 2997 data2->rx_pkts++;
2998 data2->rx_bytes += skb->len;
7882513b
JL		 2999 ieee80211_rx_irqsafe(data2->hw, skb);
3000
3001 return 0;
3002err:
c393862f 3003 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 3004out:
3005 dev_kfree_skb(skb);
3006 return -EINVAL;
3007}
3008
3009static int hwsim_register_received_nl(struct sk_buff *skb_2,
3010 struct genl_info *info)
3011{
f21e4d8e 3012 struct net *net = genl_info_net(info);
c5ac0854
JB		 3013 struct mac80211_hwsim_data *data;
3014 int chans = 1;
3015
3016 spin_lock_bh(&hwsim_radio_lock);
3017 list_for_each_entry(data, &hwsim_radios, list)
3018 chans = max(chans, data->channels);
3019 spin_unlock_bh(&hwsim_radio_lock);
3020
3021 /* In the future we should revise the userspace API and allow it
3022 * to set a flag that it does support multi-channel, then we can
3023 * let this pass conditionally on the flag.
3024 * For current userspace, prohibit it since it won't work right.
3025 */
3026 if (chans > 1)
3027 return -EOPNOTSUPP;
3028
f21e4d8e 3029 if (hwsim_net_get_wmediumd(net))
85ca8fc7 3030 return -EBUSY;
7882513b 3031
f21e4d8e 3032 hwsim_register_wmediumd(net, info->snd_portid);
7882513b
JL		 3033
3034 printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
15e47304 3035 "switching to wmediumd mode with pid %d\n", info->snd_portid);
7882513b
JL		 3036
3037 return 0;
7882513b
JL		 3038}
3039
62759361 3040static int hwsim_new_radio_nl(struct sk_buff *msg, struct genl_info *info)
bc791098 3041{
62759361
JR		 3042 struct hwsim_new_radio_params param = { 0 };
3043
3044 param.reg_strict = info->attrs[HWSIM_ATTR_REG_STRICT_REG];
3045 param.p2p_device = info->attrs[HWSIM_ATTR_SUPPORT_P2P_DEVICE];
3046 param.channels = channels;
3047 param.destroy_on_close =
3048 info->attrs[HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE];
bc791098
JB		 3049
3050 if (info->attrs[HWSIM_ATTR_CHANNELS])
62759361 3051 param.channels = nla_get_u32(info->attrs[HWSIM_ATTR_CHANNELS]);
bc791098 3052
9a0cb89a 3053 if (info->attrs[HWSIM_ATTR_NO_VIF])
62759361 3054 param.no_vif = true;
9a0cb89a 3055
5cd8926b 3056 if (info->attrs[HWSIM_ATTR_RADIO_NAME])
62759361 3057 param.hwname = nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]);
5cd8926b 3058
361c3e04 3059 if (info->attrs[HWSIM_ATTR_USE_CHANCTX])
62759361 3060 param.use_chanctx = true;
361c3e04 3061 else
62759361 3062 param.use_chanctx = (param.channels > 1);
361c3e04 3063
26b0e411 3064 if (info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2])
62759361
JR		 3065 param.reg_alpha2 =
3066 nla_data(info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2]);
26b0e411
JB		 3067
3068 if (info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]) {
3069 u32 idx = nla_get_u32(info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]);
3070
3071 if (idx >= ARRAY_SIZE(hwsim_world_regdom_custom))
3072 return -EINVAL;
62759361 3073 param.regd = hwsim_world_regdom_custom[idx];
26b0e411
JB		 3074 }
3075
62759361 3076 return mac80211_hwsim_new_radio(info, &param);
bc791098
JB		 3077}
3078
579a05f2 3079static int hwsim_del_radio_nl(struct sk_buff *msg, struct genl_info *info)
bc791098
JB		 3080{
3081 struct mac80211_hwsim_data *data;
8cdd9e1c
BG		 3082 s64 idx = -1;
3083 const char *hwname = NULL;
bc791098 3084
8cdd9e1c
BG		 3085 if (info->attrs[HWSIM_ATTR_RADIO_ID])
3086 idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
3087 else if (info->attrs[HWSIM_ATTR_RADIO_NAME])
3088 hwname = (void *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]);
3089 else
bc791098 3090 return -EINVAL;
bc791098
JB		 3091
3092 spin_lock_bh(&hwsim_radio_lock);
3093 list_for_each_entry(data, &hwsim_radios, list) {
8cdd9e1c
BG		 3094 if (idx >= 0) {
3095 if (data->idx != idx)
3096 continue;
3097 } else {
6b67e01f 3098 if (strcmp(hwname, wiphy_name(data->hw->wiphy)))
8cdd9e1c
BG		 3099 continue;
3100 }
3101
100cb9ff
MW		 3102 if (!net_eq(wiphy_net(data->hw->wiphy), genl_info_net(info)))
3103 continue;
3104
bc791098
JB		 3105 list_del(&data->list);
3106 spin_unlock_bh(&hwsim_radio_lock);
b9995f83
JR		 3107 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
3108 info);
bc791098
JB		 3109 return 0;
3110 }
3111 spin_unlock_bh(&hwsim_radio_lock);
3112
3113 return -ENODEV;
7882513b
JL		 3114}
3115
93d638d4
PF		 3116static int hwsim_get_radio_nl(struct sk_buff *msg, struct genl_info *info)
3117{
3118 struct mac80211_hwsim_data *data;
3119 struct sk_buff *skb;
3120 int idx, res = -ENODEV;
3121
3122 if (!info->attrs[HWSIM_ATTR_RADIO_ID])
3123 return -EINVAL;
3124 idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
3125
3126 spin_lock_bh(&hwsim_radio_lock);
3127 list_for_each_entry(data, &hwsim_radios, list) {
3128 if (data->idx != idx)
3129 continue;
3130
100cb9ff
MW		 3131 if (!net_eq(wiphy_net(data->hw->wiphy), genl_info_net(info)))
3132 continue;
3133
93d638d4
PF		 3134 skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3135 if (!skb) {
3136 res = -ENOMEM;
3137 goto out_err;
3138 }
3139
3140 res = mac80211_hwsim_get_radio(skb, data, info->snd_portid,
3141 info->snd_seq, NULL, 0);
3142 if (res < 0) {
3143 nlmsg_free(skb);
3144 goto out_err;
3145 }
3146
3147 genlmsg_reply(skb, info);
3148 break;
3149 }
3150
3151out_err:
3152 spin_unlock_bh(&hwsim_radio_lock);
3153
3154 return res;
3155}
3156
3157static int hwsim_dump_radio_nl(struct sk_buff *skb,
3158 struct netlink_callback *cb)
3159{
3160 int idx = cb->args[0];
3161 struct mac80211_hwsim_data *data = NULL;
3162 int res;
3163
3164 spin_lock_bh(&hwsim_radio_lock);
3165
3166 if (idx == hwsim_radio_idx)
3167 goto done;
3168
3169 list_for_each_entry(data, &hwsim_radios, list) {
3170 if (data->idx < idx)
3171 continue;
3172
100cb9ff
MW		 3173 if (!net_eq(wiphy_net(data->hw->wiphy), sock_net(skb->sk)))
3174 continue;
3175
93d638d4
PF		 3176 res = mac80211_hwsim_get_radio(skb, data,
3177 NETLINK_CB(cb->skb).portid,
3178 cb->nlh->nlmsg_seq, cb,
3179 NLM_F_MULTI);
3180 if (res < 0)
3181 break;
3182
3183 idx = data->idx + 1;
3184 }
3185
3186 cb->args[0] = idx;
3187
3188done:
3189 spin_unlock_bh(&hwsim_radio_lock);
3190 return skb->len;
3191}
3192
7882513b 3193/* Generic Netlink operations array */
4534de83 3194static const struct genl_ops hwsim_ops[] = {
7882513b
JL		 3195 {
3196 .cmd = HWSIM_CMD_REGISTER,
3197 .policy = hwsim_genl_policy,
3198 .doit = hwsim_register_received_nl,
f21e4d8e 3199 .flags = GENL_UNS_ADMIN_PERM,
7882513b
JL		 3200 },
3201 {
3202 .cmd = HWSIM_CMD_FRAME,
3203 .policy = hwsim_genl_policy,
3204 .doit = hwsim_cloned_frame_received_nl,
3205 },
3206 {
3207 .cmd = HWSIM_CMD_TX_INFO_FRAME,
3208 .policy = hwsim_genl_policy,
3209 .doit = hwsim_tx_info_frame_received_nl,
3210 },
bc791098 3211 {
62759361 3212 .cmd = HWSIM_CMD_NEW_RADIO,
bc791098 3213 .policy = hwsim_genl_policy,
62759361 3214 .doit = hwsim_new_radio_nl,
100cb9ff 3215 .flags = GENL_UNS_ADMIN_PERM,
bc791098
JB		 3216 },
3217 {
579a05f2 3218 .cmd = HWSIM_CMD_DEL_RADIO,
bc791098 3219 .policy = hwsim_genl_policy,
579a05f2 3220 .doit = hwsim_del_radio_nl,
100cb9ff 3221 .flags = GENL_UNS_ADMIN_PERM,
bc791098 3222 },
93d638d4
PF		 3223 {
3224 .cmd = HWSIM_CMD_GET_RADIO,
3225 .policy = hwsim_genl_policy,
3226 .doit = hwsim_get_radio_nl,
3227 .dumpit = hwsim_dump_radio_nl,
3228 },
7882513b
JL		 3229};
3230
56989f6d 3231static struct genl_family hwsim_genl_family __ro_after_init = {
489111e5
JB		 3232 .name = "MAC80211_HWSIM",
3233 .version = 1,
3234 .maxattr = HWSIM_ATTR_MAX,
3235 .netnsok = true,
3236 .module = THIS_MODULE,
3237 .ops = hwsim_ops,
3238 .n_ops = ARRAY_SIZE(hwsim_ops),
3239 .mcgrps = hwsim_mcgrps,
3240 .n_mcgrps = ARRAY_SIZE(hwsim_mcgrps),
3241};
3242
e9ed49bf
JR		 3243static void destroy_radio(struct work_struct *work)
3244{
3245 struct mac80211_hwsim_data *data =
3246 container_of(work, struct mac80211_hwsim_data, destroy_work);
3247
b9995f83 3248 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy), NULL);
e9ed49bf
JR		 3249}
3250
3251static void remove_user_radios(u32 portid)
3252{
3253 struct mac80211_hwsim_data *entry, *tmp;
3254
3255 spin_lock_bh(&hwsim_radio_lock);
3256 list_for_each_entry_safe(entry, tmp, &hwsim_radios, list) {
3257 if (entry->destroy_on_close && entry->portid == portid) {
3258 list_del(&entry->list);
3259 INIT_WORK(&entry->destroy_work, destroy_radio);
3260 schedule_work(&entry->destroy_work);
3261 }
3262 }
3263 spin_unlock_bh(&hwsim_radio_lock);
3264}
3265
7882513b
JL		 3266static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
3267 unsigned long state,
3268 void *_notify)
3269{
3270 struct netlink_notify *notify = _notify;
3271
3272 if (state != NETLINK_URELEASE)
3273 return NOTIFY_DONE;
3274
e9ed49bf
JR		 3275 remove_user_radios(notify->portid);
3276
f21e4d8e 3277 if (notify->portid == hwsim_net_get_wmediumd(notify->net)) {
7882513b
JL		 3278 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
3279 " socket, switching to perfect channel medium\n");
f21e4d8e 3280 hwsim_register_wmediumd(notify->net, 0);
7882513b
JL		 3281 }
3282 return NOTIFY_DONE;
3283
3284}
3285
3286static struct notifier_block hwsim_netlink_notifier = {
3287 .notifier_call = mac80211_hwsim_netlink_notify,
3288};
3289
56989f6d 3290static int __init hwsim_init_netlink(void)
7882513b
JL		 3291{
3292 int rc;
e8261171 3293
7882513b
JL		 3294 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
3295
489111e5 3296 rc = genl_register_family(&hwsim_genl_family);
7882513b
JL		 3297 if (rc)
3298 goto failure;
3299
3300 rc = netlink_register_notifier(&hwsim_netlink_notifier);
2459cd87
SKY		 3301 if (rc) {
3302 genl_unregister_family(&hwsim_genl_family);
7882513b 3303 goto failure;
2459cd87 3304 }
7882513b
JL		 3305
3306 return 0;
3307
3308failure:
c393862f 3309 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 3310 return -EINVAL;
3311}
3312
100cb9ff
MW		 3313static __net_init int hwsim_init_net(struct net *net)
3314{
3315 hwsim_net_set_netgroup(net);
3316
3317 return 0;
3318}
3319
3320static void __net_exit hwsim_exit_net(struct net *net)
3321{
3322 struct mac80211_hwsim_data *data, *tmp;
3323
3324 spin_lock_bh(&hwsim_radio_lock);
3325 list_for_each_entry_safe(data, tmp, &hwsim_radios, list) {
3326 if (!net_eq(wiphy_net(data->hw->wiphy), net))
3327 continue;
3328
3329 /* Radios created in init_net are returned to init_net. */
3330 if (data->netgroup == hwsim_net_get_netgroup(&init_net))
3331 continue;
3332
3333 list_del(&data->list);
3334 INIT_WORK(&data->destroy_work, destroy_radio);
3335 schedule_work(&data->destroy_work);
3336 }
3337 spin_unlock_bh(&hwsim_radio_lock);
3338}
3339
3340static struct pernet_operations hwsim_net_ops = {
3341 .init = hwsim_init_net,
3342 .exit = hwsim_exit_net,
3343 .id = &hwsim_net_id,
3344 .size = sizeof(struct hwsim_net),
3345};
3346
7882513b
JL		 3347static void hwsim_exit_netlink(void)
3348{
7882513b
JL		 3349 /* unregister the notifier */
3350 netlink_unregister_notifier(&hwsim_netlink_notifier);
3351 /* unregister the family */
cf7a6b2d 3352 genl_unregister_family(&hwsim_genl_family);
7882513b
JL		 3353}
3354
acc1e7a3
JM		 3355static int __init init_mac80211_hwsim(void)
3356{
f39c2bfa 3357 int i, err;
acc1e7a3 3358
bc791098 3359 if (radios < 0 || radios > 100)
acc1e7a3
JM		 3360 return -EINVAL;
3361
e8261171
JB		 3362 if (channels < 1)
3363 return -EINVAL;
3364
38ed5048
JB		 3365 mac80211_hwsim_mchan_ops = mac80211_hwsim_ops;
3366 mac80211_hwsim_mchan_ops.hw_scan = mac80211_hwsim_hw_scan;
3367 mac80211_hwsim_mchan_ops.cancel_hw_scan = mac80211_hwsim_cancel_hw_scan;
3368 mac80211_hwsim_mchan_ops.sw_scan_start = NULL;
3369 mac80211_hwsim_mchan_ops.sw_scan_complete = NULL;
3370 mac80211_hwsim_mchan_ops.remain_on_channel = mac80211_hwsim_roc;
3371 mac80211_hwsim_mchan_ops.cancel_remain_on_channel = mac80211_hwsim_croc;
3372 mac80211_hwsim_mchan_ops.add_chanctx = mac80211_hwsim_add_chanctx;
3373 mac80211_hwsim_mchan_ops.remove_chanctx = mac80211_hwsim_remove_chanctx;
3374 mac80211_hwsim_mchan_ops.change_chanctx = mac80211_hwsim_change_chanctx;
3375 mac80211_hwsim_mchan_ops.assign_vif_chanctx =
3376 mac80211_hwsim_assign_vif_chanctx;
3377 mac80211_hwsim_mchan_ops.unassign_vif_chanctx =
3378 mac80211_hwsim_unassign_vif_chanctx;
69068036 3379
0e057d73 3380 spin_lock_init(&hwsim_radio_lock);
acc1e7a3 3381
100cb9ff 3382 err = register_pernet_device(&hwsim_net_ops);
9ea92774
MP		 3383 if (err)
3384 return err;
3385
100cb9ff
MW		 3386 err = platform_driver_register(&mac80211_hwsim_driver);
3387 if (err)
3388 goto out_unregister_pernet;
3389
acc1e7a3 3390 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
9ea92774
MP		 3391 if (IS_ERR(hwsim_class)) {
3392 err = PTR_ERR(hwsim_class);
f39c2bfa 3393 goto out_unregister_driver;
9ea92774 3394 }
acc1e7a3 3395
62759361
JR		 3396 err = hwsim_init_netlink();
3397 if (err < 0)
3398 goto out_unregister_driver;
3399
0e057d73 3400 for (i = 0; i < radios; i++) {
62759361
JR		 3401 struct hwsim_new_radio_params param = { 0 };
3402
3403 param.channels = channels;
acc1e7a3 3404
4a5af9c2 3405 switch (regtest) {
4a5af9c2 3406 case HWSIM_REGTEST_DIFF_COUNTRY:
26b0e411 3407 if (i < ARRAY_SIZE(hwsim_alpha2s))
62759361 3408 param.reg_alpha2 = hwsim_alpha2s[i];
4a5af9c2
LR		 3409 break;
3410 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
3411 if (!i)
62759361 3412 param.reg_alpha2 = hwsim_alpha2s[0];
4a5af9c2 3413 break;
4a5af9c2 3414 case HWSIM_REGTEST_STRICT_ALL:
62759361 3415 param.reg_strict = true;
26b0e411 3416 case HWSIM_REGTEST_DRIVER_REG_ALL:
62759361 3417 param.reg_alpha2 = hwsim_alpha2s[0];
4a5af9c2 3418 break;
26b0e411
JB		 3419 case HWSIM_REGTEST_WORLD_ROAM:
3420 if (i == 0)
62759361 3421 param.regd = &hwsim_world_regdom_custom_01;
4a5af9c2
LR		 3422 break;
3423 case HWSIM_REGTEST_CUSTOM_WORLD:
62759361 3424 param.regd = &hwsim_world_regdom_custom_01;
26b0e411 3425 break;
4a5af9c2 3426 case HWSIM_REGTEST_CUSTOM_WORLD_2:
26b0e411 3427 if (i == 0)
62759361 3428 param.regd = &hwsim_world_regdom_custom_01;
26b0e411 3429 else if (i == 1)
62759361 3430 param.regd = &hwsim_world_regdom_custom_02;
4a5af9c2
LR		 3431 break;
3432 case HWSIM_REGTEST_STRICT_FOLLOW:
26b0e411 3433 if (i == 0) {
62759361
JR		 3434 param.reg_strict = true;
3435 param.reg_alpha2 = hwsim_alpha2s[0];
26b0e411 3436 }
4a5af9c2
LR		 3437 break;
3438 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
26b0e411 3439 if (i == 0) {
62759361
JR		 3440 param.reg_strict = true;
3441 param.reg_alpha2 = hwsim_alpha2s[0];
26b0e411 3442 } else if (i == 1) {
62759361 3443 param.reg_alpha2 = hwsim_alpha2s[1];
26b0e411 3444 }
4a5af9c2
LR		 3445 break;
3446 case HWSIM_REGTEST_ALL:
26b0e411
JB		 3447 switch (i) {
3448 case 0:
62759361 3449 param.regd = &hwsim_world_regdom_custom_01;
26b0e411
JB		 3450 break;
3451 case 1:
62759361 3452 param.regd = &hwsim_world_regdom_custom_02;
26b0e411
JB		 3453 break;
3454 case 2:
62759361 3455 param.reg_alpha2 = hwsim_alpha2s[0];
26b0e411
JB		 3456 break;
3457 case 3:
62759361 3458 param.reg_alpha2 = hwsim_alpha2s[1];
26b0e411
JB		 3459 break;
3460 case 4:
62759361
JR		 3461 param.reg_strict = true;
3462 param.reg_alpha2 = hwsim_alpha2s[2];
26b0e411
JB		 3463 break;
3464 }
4a5af9c2
LR		 3465 break;
3466 default:
3467 break;
3468 }
3469
62759361
JR		 3470 param.p2p_device = support_p2p_device;
3471 param.use_chanctx = channels > 1;
3472
3473 err = mac80211_hwsim_new_radio(NULL, &param);
bc791098 3474 if (err < 0)
f39c2bfa 3475 goto out_free_radios;
acc1e7a3
JM		 3476 }
3477
c835a677
TG		 3478 hwsim_mon = alloc_netdev(0, "hwsim%d", NET_NAME_UNKNOWN,
3479 hwsim_mon_setup);
bcdd8220
WY		 3480 if (hwsim_mon == NULL) {
3481 err = -ENOMEM;
f39c2bfa 3482 goto out_free_radios;
bcdd8220 3483 }
acc1e7a3 3484
7882513b 3485 rtnl_lock();
7882513b 3486 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
f39c2bfa
JB		 3487 if (err < 0) {
3488 rtnl_unlock();
3489 goto out_free_radios;
3490 }
7882513b
JL		 3491
3492 err = register_netdevice(hwsim_mon);
f39c2bfa
JB		 3493 if (err < 0) {
3494 rtnl_unlock();
3495 goto out_free_mon;
3496 }
7882513b
JL		 3497 rtnl_unlock();
3498
acc1e7a3
JM		 3499 return 0;
3500
f39c2bfa 3501out_free_mon:
acc1e7a3 3502 free_netdev(hwsim_mon);
f39c2bfa 3503out_free_radios:
3a33cc10 3504 mac80211_hwsim_free();
f39c2bfa 3505out_unregister_driver:
c07fe5ae 3506 platform_driver_unregister(&mac80211_hwsim_driver);
100cb9ff
MW		 3507out_unregister_pernet:
3508 unregister_pernet_device(&hwsim_net_ops);
acc1e7a3
JM		 3509 return err;
3510}
f8fffc7e 3511module_init(init_mac80211_hwsim);
acc1e7a3
JM		 3512
3513static void __exit exit_mac80211_hwsim(void)
3514{
0e057d73 3515 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
acc1e7a3 3516
7882513b
JL		 3517 hwsim_exit_netlink();
3518
acc1e7a3 3519 mac80211_hwsim_free();
5d416351 3520 unregister_netdev(hwsim_mon);
c07fe5ae 3521 platform_driver_unregister(&mac80211_hwsim_driver);
100cb9ff 3522 unregister_pernet_device(&hwsim_net_ops);
acc1e7a3 3523}
acc1e7a3 3524module_exit(exit_mac80211_hwsim);
Linux 6.x block layer and io_uring tree(s)