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mac80211: rename ieee80211_rx_status::vht_nss to just nss
[mirror_ubuntu-eoan-kernel.git] / drivers / net / wireless / mac80211_hwsim.c
CommitLineData
acc1e7a3
JM		 1/*
2 * mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211
3 * Copyright (c) 2008, Jouni Malinen <j@w1.fi>
7882513b 4 * Copyright (c) 2011, Javier Lopez <jlopex@gmail.com>
acc1e7a3
JM		 5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10
11/*
12 * TODO:
2b2d7795
JB		 13 * - Add TSF sync and fix IBSS beacon transmission by adding
14 * competition for "air time" at TBTT
acc1e7a3
JM		 15 * - RX filtering based on filter configuration (data->rx_filter)
16 */
17
0e057d73 18#include <linux/list.h>
5a0e3ad6 19#include <linux/slab.h>
0e057d73 20#include <linux/spinlock.h>
90e3012e
JB		 21#include <net/dst.h>
22#include <net/xfrm.h>
acc1e7a3
JM		 23#include <net/mac80211.h>
24#include <net/ieee80211_radiotap.h>
25#include <linux/if_arp.h>
26#include <linux/rtnetlink.h>
27#include <linux/etherdevice.h>
9ea92774 28#include <linux/platform_device.h>
fc6971d4 29#include <linux/debugfs.h>
9d9779e7 30#include <linux/module.h>
2f40b940 31#include <linux/ktime.h>
7882513b 32#include <net/genetlink.h>
100cb9ff
MW		 33#include <net/net_namespace.h>
34#include <net/netns/generic.h>
7882513b
JL		 35#include "mac80211_hwsim.h"
36
37#define WARN_QUEUE 100
38#define MAX_QUEUE 200
acc1e7a3
JM		 39
40MODULE_AUTHOR("Jouni Malinen");
41MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
42MODULE_LICENSE("GPL");
43
44static int radios = 2;
45module_param(radios, int, 0444);
46MODULE_PARM_DESC(radios, "Number of simulated radios");
47
e8261171
JB		 48static int channels = 1;
49module_param(channels, int, 0444);
50MODULE_PARM_DESC(channels, "Number of concurrent channels");
69068036 51
a357d7f9
JB		 52static bool paged_rx = false;
53module_param(paged_rx, bool, 0644);
54MODULE_PARM_DESC(paged_rx, "Use paged SKBs for RX instead of linear ones");
55
1eb32179
KB		 56static bool rctbl = false;
57module_param(rctbl, bool, 0444);
58MODULE_PARM_DESC(rctbl, "Handle rate control table");
59
8c66a3d9
JB		 60static bool support_p2p_device = true;
61module_param(support_p2p_device, bool, 0444);
62MODULE_PARM_DESC(support_p2p_device, "Support P2P-Device interface type");
63
4a5af9c2
LR		 64/**
65 * enum hwsim_regtest - the type of regulatory tests we offer
66 *
67 * These are the different values you can use for the regtest
68 * module parameter. This is useful to help test world roaming
69 * and the driver regulatory_hint() call and combinations of these.
70 * If you want to do specific alpha2 regulatory domain tests simply
71 * use the userspace regulatory request as that will be respected as
72 * well without the need of this module parameter. This is designed
73 * only for testing the driver regulatory request, world roaming
74 * and all possible combinations.
75 *
76 * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
77 * this is the default value.
78 * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
79 * hint, only one driver regulatory hint will be sent as such the
80 * secondary radios are expected to follow.
81 * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
82 * request with all radios reporting the same regulatory domain.
83 * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
84 * different regulatory domains requests. Expected behaviour is for
85 * an intersection to occur but each device will still use their
86 * respective regulatory requested domains. Subsequent radios will
87 * use the resulting intersection.
25985edc 88 * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We accomplish
4a5af9c2
LR		 89 * this by using a custom beacon-capable regulatory domain for the first
90 * radio. All other device world roam.
91 * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
92 * domain requests. All radios will adhere to this custom world regulatory
93 * domain.
94 * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
95 * domain requests. The first radio will adhere to the first custom world
96 * regulatory domain, the second one to the second custom world regulatory
97 * domain. All other devices will world roam.
98 * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain
99 * settings, only the first radio will send a regulatory domain request
100 * and use strict settings. The rest of the radios are expected to follow.
101 * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
102 * settings. All radios will adhere to this.
103 * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
104 * domain settings, combined with secondary driver regulatory domain
105 * settings. The first radio will get a strict regulatory domain setting
106 * using the first driver regulatory request and the second radio will use
107 * non-strict settings using the second driver regulatory request. All
108 * other devices should follow the intersection created between the
109 * first two.
110 * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
111 * at least 6 radios for a complete test. We will test in this order:
112 * 1 - driver custom world regulatory domain
113 * 2 - second custom world regulatory domain
114 * 3 - first driver regulatory domain request
115 * 4 - second driver regulatory domain request
116 * 5 - strict regulatory domain settings using the third driver regulatory
117 * domain request
118 * 6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
119 * regulatory requests.
120 */
121enum hwsim_regtest {
122 HWSIM_REGTEST_DISABLED = 0,
123 HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1,
124 HWSIM_REGTEST_DRIVER_REG_ALL = 2,
125 HWSIM_REGTEST_DIFF_COUNTRY = 3,
126 HWSIM_REGTEST_WORLD_ROAM = 4,
127 HWSIM_REGTEST_CUSTOM_WORLD = 5,
128 HWSIM_REGTEST_CUSTOM_WORLD_2 = 6,
129 HWSIM_REGTEST_STRICT_FOLLOW = 7,
130 HWSIM_REGTEST_STRICT_ALL = 8,
131 HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9,
132 HWSIM_REGTEST_ALL = 10,
133};
134
135/* Set to one of the HWSIM_REGTEST_* values above */
136static int regtest = HWSIM_REGTEST_DISABLED;
137module_param(regtest, int, 0444);
138MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run");
139
140static const char *hwsim_alpha2s[] = {
141 "FI",
142 "AL",
143 "US",
144 "DE",
145 "JP",
146 "AL",
147};
148
149static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = {
150 .n_reg_rules = 4,
151 .alpha2 = "99",
152 .reg_rules = {
153 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
154 REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
155 REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
156 REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
157 }
158};
159
160static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = {
161 .n_reg_rules = 2,
162 .alpha2 = "99",
163 .reg_rules = {
164 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
165 REG_RULE(5725-10, 5850+10, 40, 0, 30,
8fe02e16 166 NL80211_RRF_NO_IR),
4a5af9c2
LR		 167 }
168};
169
26b0e411
JB		 170static const struct ieee80211_regdomain *hwsim_world_regdom_custom[] = {
171 &hwsim_world_regdom_custom_01,
172 &hwsim_world_regdom_custom_02,
173};
174
8aa21e6f
JB		 175struct hwsim_vif_priv {
176 u32 magic;
fc6971d4
JM		 177 u8 bssid[ETH_ALEN];
178 bool assoc;
0bb861e6 179 bool bcn_en;
fc6971d4 180 u16 aid;
8aa21e6f
JB		 181};
182
183#define HWSIM_VIF_MAGIC 0x69537748
184
185static inline void hwsim_check_magic(struct ieee80211_vif *vif)
186{
187 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
e8261171
JB		 188 WARN(vp->magic != HWSIM_VIF_MAGIC,
189 "Invalid VIF (%p) magic %#x, %pM, %d/%d\n",
190 vif, vp->magic, vif->addr, vif->type, vif->p2p);
8aa21e6f
JB		 191}
192
193static inline void hwsim_set_magic(struct ieee80211_vif *vif)
194{
195 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
196 vp->magic = HWSIM_VIF_MAGIC;
197}
198
199static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
200{
201 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
202 vp->magic = 0;
203}
acc1e7a3 204
81c06523
JB		 205struct hwsim_sta_priv {
206 u32 magic;
207};
208
e8261171 209#define HWSIM_STA_MAGIC 0x6d537749
81c06523
JB		 210
211static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
212{
213 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
5d6924ea 214 WARN_ON(sp->magic != HWSIM_STA_MAGIC);
81c06523
JB		 215}
216
217static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
218{
219 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
5d6924ea 220 sp->magic = HWSIM_STA_MAGIC;
81c06523
JB		 221}
222
223static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
224{
225 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
226 sp->magic = 0;
227}
228
e8261171
JB		 229struct hwsim_chanctx_priv {
230 u32 magic;
231};
232
233#define HWSIM_CHANCTX_MAGIC 0x6d53774a
234
235static inline void hwsim_check_chanctx_magic(struct ieee80211_chanctx_conf *c)
236{
237 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
238 WARN_ON(cp->magic != HWSIM_CHANCTX_MAGIC);
239}
240
241static inline void hwsim_set_chanctx_magic(struct ieee80211_chanctx_conf *c)
242{
243 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
244 cp->magic = HWSIM_CHANCTX_MAGIC;
245}
246
247static inline void hwsim_clear_chanctx_magic(struct ieee80211_chanctx_conf *c)
248{
249 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
250 cp->magic = 0;
251}
252
c7d03a00 253static unsigned int hwsim_net_id;
100cb9ff
MW		 254
255static int hwsim_netgroup;
256
257struct hwsim_net {
258 int netgroup;
f21e4d8e 259 u32 wmediumd;
100cb9ff
MW		 260};
261
262static inline int hwsim_net_get_netgroup(struct net *net)
263{
264 struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
265
266 return hwsim_net->netgroup;
267}
268
269static inline void hwsim_net_set_netgroup(struct net *net)
270{
271 struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
272
273 hwsim_net->netgroup = hwsim_netgroup++;
274}
275
f21e4d8e
MW		 276static inline u32 hwsim_net_get_wmediumd(struct net *net)
277{
278 struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
279
280 return hwsim_net->wmediumd;
281}
282
283static inline void hwsim_net_set_wmediumd(struct net *net, u32 portid)
284{
285 struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
286
287 hwsim_net->wmediumd = portid;
288}
289
acc1e7a3
JM		 290static struct class *hwsim_class;
291
acc1e7a3
JM		 292static struct net_device *hwsim_mon; /* global monitor netdev */
293
22cad735 294#define CHAN2G(_freq) { \
57fbcce3 295 .band = NL80211_BAND_2GHZ, \
22cad735
LR		 296 .center_freq = (_freq), \
297 .hw_value = (_freq), \
298 .max_power = 20, \
299}
300
301#define CHAN5G(_freq) { \
57fbcce3 302 .band = NL80211_BAND_5GHZ, \
22cad735
LR		 303 .center_freq = (_freq), \
304 .hw_value = (_freq), \
305 .max_power = 20, \
306}
307
308static const struct ieee80211_channel hwsim_channels_2ghz[] = {
309 CHAN2G(2412), /* Channel 1 */
310 CHAN2G(2417), /* Channel 2 */
311 CHAN2G(2422), /* Channel 3 */
312 CHAN2G(2427), /* Channel 4 */
313 CHAN2G(2432), /* Channel 5 */
314 CHAN2G(2437), /* Channel 6 */
315 CHAN2G(2442), /* Channel 7 */
316 CHAN2G(2447), /* Channel 8 */
317 CHAN2G(2452), /* Channel 9 */
318 CHAN2G(2457), /* Channel 10 */
319 CHAN2G(2462), /* Channel 11 */
320 CHAN2G(2467), /* Channel 12 */
321 CHAN2G(2472), /* Channel 13 */
322 CHAN2G(2484), /* Channel 14 */
323};
acc1e7a3 324
22cad735
LR		 325static const struct ieee80211_channel hwsim_channels_5ghz[] = {
326 CHAN5G(5180), /* Channel 36 */
327 CHAN5G(5200), /* Channel 40 */
328 CHAN5G(5220), /* Channel 44 */
329 CHAN5G(5240), /* Channel 48 */
330
331 CHAN5G(5260), /* Channel 52 */
332 CHAN5G(5280), /* Channel 56 */
333 CHAN5G(5300), /* Channel 60 */
334 CHAN5G(5320), /* Channel 64 */
335
336 CHAN5G(5500), /* Channel 100 */
337 CHAN5G(5520), /* Channel 104 */
338 CHAN5G(5540), /* Channel 108 */
339 CHAN5G(5560), /* Channel 112 */
340 CHAN5G(5580), /* Channel 116 */
341 CHAN5G(5600), /* Channel 120 */
342 CHAN5G(5620), /* Channel 124 */
343 CHAN5G(5640), /* Channel 128 */
344 CHAN5G(5660), /* Channel 132 */
345 CHAN5G(5680), /* Channel 136 */
346 CHAN5G(5700), /* Channel 140 */
347
348 CHAN5G(5745), /* Channel 149 */
349 CHAN5G(5765), /* Channel 153 */
350 CHAN5G(5785), /* Channel 157 */
351 CHAN5G(5805), /* Channel 161 */
352 CHAN5G(5825), /* Channel 165 */
85bbd803 353 CHAN5G(5845), /* Channel 169 */
acc1e7a3
JM		 354};
355
356static const struct ieee80211_rate hwsim_rates[] = {
357 { .bitrate = 10 },
358 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
359 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
360 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
361 { .bitrate = 60 },
362 { .bitrate = 90 },
363 { .bitrate = 120 },
364 { .bitrate = 180 },
365 { .bitrate = 240 },
366 { .bitrate = 360 },
367 { .bitrate = 480 },
368 { .bitrate = 540 }
369};
370
d5d011b4
JM		 371#define OUI_QCA 0x001374
372#define QCA_NL80211_SUBCMD_TEST 1
373enum qca_nl80211_vendor_subcmds {
374 QCA_WLAN_VENDOR_ATTR_TEST = 8,
375 QCA_WLAN_VENDOR_ATTR_MAX = QCA_WLAN_VENDOR_ATTR_TEST
376};
377
378static const struct nla_policy
379hwsim_vendor_test_policy[QCA_WLAN_VENDOR_ATTR_MAX + 1] = {
380 [QCA_WLAN_VENDOR_ATTR_MAX] = { .type = NLA_U32 },
381};
382
383static int mac80211_hwsim_vendor_cmd_test(struct wiphy *wiphy,
384 struct wireless_dev *wdev,
385 const void *data, int data_len)
386{
387 struct sk_buff *skb;
388 struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_MAX + 1];
389 int err;
390 u32 val;
391
392 err = nla_parse(tb, QCA_WLAN_VENDOR_ATTR_MAX, data, data_len,
fceb6435 393 hwsim_vendor_test_policy, NULL);
d5d011b4
JM		 394 if (err)
395 return err;
396 if (!tb[QCA_WLAN_VENDOR_ATTR_TEST])
397 return -EINVAL;
398 val = nla_get_u32(tb[QCA_WLAN_VENDOR_ATTR_TEST]);
399 wiphy_debug(wiphy, "%s: test=%u\n", __func__, val);
400
401 /* Send a vendor event as a test. Note that this would not normally be
402 * done within a command handler, but rather, based on some other
403 * trigger. For simplicity, this command is used to trigger the event
404 * here.
405 *
406 * event_idx = 0 (index in mac80211_hwsim_vendor_commands)
407 */
408 skb = cfg80211_vendor_event_alloc(wiphy, wdev, 100, 0, GFP_KERNEL);
409 if (skb) {
410 /* skb_put() or nla_put() will fill up data within
411 * NL80211_ATTR_VENDOR_DATA.
412 */
413
414 /* Add vendor data */
415 nla_put_u32(skb, QCA_WLAN_VENDOR_ATTR_TEST, val + 1);
416
417 /* Send the event - this will call nla_nest_end() */
418 cfg80211_vendor_event(skb, GFP_KERNEL);
419 }
420
421 /* Send a response to the command */
422 skb = cfg80211_vendor_cmd_alloc_reply_skb(wiphy, 10);
423 if (!skb)
424 return -ENOMEM;
425
426 /* skb_put() or nla_put() will fill up data within
427 * NL80211_ATTR_VENDOR_DATA
428 */
429 nla_put_u32(skb, QCA_WLAN_VENDOR_ATTR_TEST, val + 2);
430
431 return cfg80211_vendor_cmd_reply(skb);
432}
433
434static struct wiphy_vendor_command mac80211_hwsim_vendor_commands[] = {
435 {
436 .info = { .vendor_id = OUI_QCA,
437 .subcmd = QCA_NL80211_SUBCMD_TEST },
438 .flags = WIPHY_VENDOR_CMD_NEED_NETDEV,
439 .doit = mac80211_hwsim_vendor_cmd_test,
440 }
441};
442
443/* Advertise support vendor specific events */
444static const struct nl80211_vendor_cmd_info mac80211_hwsim_vendor_events[] = {
445 { .vendor_id = OUI_QCA, .subcmd = 1 },
446};
447
de0421d5
JB		 448static const struct ieee80211_iface_limit hwsim_if_limits[] = {
449 { .max = 1, .types = BIT(NL80211_IFTYPE_ADHOC) },
450 { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) |
451 BIT(NL80211_IFTYPE_P2P_CLIENT) |
452#ifdef CONFIG_MAC80211_MESH
453 BIT(NL80211_IFTYPE_MESH_POINT) |
454#endif
455 BIT(NL80211_IFTYPE_AP) |
456 BIT(NL80211_IFTYPE_P2P_GO) },
8c66a3d9
JB		 457 /* must be last, see hwsim_if_comb */
458 { .max = 1, .types = BIT(NL80211_IFTYPE_P2P_DEVICE) }
de0421d5
JB		 459};
460
de0421d5 461static const struct ieee80211_iface_combination hwsim_if_comb[] = {
8c66a3d9
JB		 462 {
463 .limits = hwsim_if_limits,
464 /* remove the last entry which is P2P_DEVICE */
465 .n_limits = ARRAY_SIZE(hwsim_if_limits) - 1,
466 .max_interfaces = 2048,
467 .num_different_channels = 1,
8c66a3d9
JB		 468 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
469 BIT(NL80211_CHAN_WIDTH_20) |
470 BIT(NL80211_CHAN_WIDTH_40) |
471 BIT(NL80211_CHAN_WIDTH_80) |
472 BIT(NL80211_CHAN_WIDTH_160),
f7736f50 473 },
8c66a3d9
JB		 474};
475
476static const struct ieee80211_iface_combination hwsim_if_comb_p2p_dev[] = {
de0421d5
JB		 477 {
478 .limits = hwsim_if_limits,
479 .n_limits = ARRAY_SIZE(hwsim_if_limits),
480 .max_interfaces = 2048,
481 .num_different_channels = 1,
de0421d5
JB		 482 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
483 BIT(NL80211_CHAN_WIDTH_20) |
484 BIT(NL80211_CHAN_WIDTH_40) |
485 BIT(NL80211_CHAN_WIDTH_80) |
486 BIT(NL80211_CHAN_WIDTH_160),
f7736f50 487 },
de0421d5
JB		 488};
489
0e057d73 490static spinlock_t hwsim_radio_lock;
b59abfbe 491static LIST_HEAD(hwsim_radios);
2d68992b 492static int hwsim_radio_idx;
0e057d73 493
de0421d5
JB		 494static struct platform_driver mac80211_hwsim_driver = {
495 .driver = {
496 .name = "mac80211_hwsim",
de0421d5
JB		 497 },
498};
0e057d73 499
acc1e7a3 500struct mac80211_hwsim_data {
0e057d73
JB		 501 struct list_head list;
502 struct ieee80211_hw *hw;
acc1e7a3 503 struct device *dev;
57fbcce3 504 struct ieee80211_supported_band bands[NUM_NL80211_BANDS];
22cad735
LR		 505 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
506 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
acc1e7a3 507 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
38ed5048 508 struct ieee80211_iface_combination if_combination;
acc1e7a3 509
ef15aac6 510 struct mac_address addresses[2];
bc791098 511 int channels, idx;
361c3e04 512 bool use_chanctx;
e9ed49bf
JR		 513 bool destroy_on_close;
514 struct work_struct destroy_work;
515 u32 portid;
93d638d4
PF		 516 char alpha2[2];
517 const struct ieee80211_regdomain *regd;
ef15aac6 518
e8261171 519 struct ieee80211_channel *tmp_chan;
661ef475
JB		 520 struct ieee80211_channel *roc_chan;
521 u32 roc_duration;
522 struct delayed_work roc_start;
e8261171
JB		 523 struct delayed_work roc_done;
524 struct delayed_work hw_scan;
525 struct cfg80211_scan_request *hw_scan_request;
526 struct ieee80211_vif *hw_scan_vif;
527 int scan_chan_idx;
339467b9 528 u8 scan_addr[ETH_ALEN];
7f813ce1
JB		 529 struct {
530 struct ieee80211_channel *channel;
531 unsigned long next_start, start, end;
532 } survey_data[ARRAY_SIZE(hwsim_channels_2ghz) +
533 ARRAY_SIZE(hwsim_channels_5ghz)];
e8261171 534
acc1e7a3 535 struct ieee80211_channel *channel;
01e59e46 536 u64 beacon_int /* beacon interval in us */;
acc1e7a3 537 unsigned int rx_filter;
f74cb0f7
LR		 538 bool started, idle, scanning;
539 struct mutex mutex;
01e59e46 540 struct tasklet_hrtimer beacon_timer;
fc6971d4
JM		 541 enum ps_mode {
542 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
543 } ps;
544 bool ps_poll_pending;
545 struct dentry *debugfs;
73606d00 546
959eb2fd 547 uintptr_t pending_cookie;
7882513b 548 struct sk_buff_head pending; /* packets pending */
73606d00
DW		 549 /*
550 * Only radios in the same group can communicate together (the
551 * channel has to match too). Each bit represents a group. A
9ebac15f 552 * radio can be in more than one group.
73606d00
DW		 553 */
554 u64 group;
bdd7bd16 555
100cb9ff
MW		 556 /* group shared by radios created in the same netns */
557 int netgroup;
f21e4d8e
MW		 558 /* wmediumd portid responsible for netgroup of this radio */
559 u32 wmediumd;
100cb9ff 560
2f40b940 561 /* difference between this hw's clock and the real clock, in usecs */
45034bfb 562 s64 tsf_offset;
c51f8783 563 s64 bcn_delta;
b66851c3
TP		 564 /* absolute beacon transmission time. Used to cover up "tx" delay. */
565 u64 abs_bcn_ts;
2155c3f8
BG		 566
567 /* Stats */
568 u64 tx_pkts;
569 u64 rx_pkts;
570 u64 tx_bytes;
571 u64 rx_bytes;
572 u64 tx_dropped;
573 u64 tx_failed;
acc1e7a3
JM		 574};
575
576
577struct hwsim_radiotap_hdr {
578 struct ieee80211_radiotap_header hdr;
2f40b940 579 __le64 rt_tsft;
acc1e7a3
JM		 580 u8 rt_flags;
581 u8 rt_rate;
582 __le16 rt_channel;
583 __le16 rt_chbitmask;
ba2d3587 584} __packed;
acc1e7a3 585
76a56eb3
JM		 586struct hwsim_radiotap_ack_hdr {
587 struct ieee80211_radiotap_header hdr;
588 u8 rt_flags;
589 u8 pad;
590 __le16 rt_channel;
591 __le16 rt_chbitmask;
592} __packed;
593
489111e5
JB		 594/* MAC80211_HWSIM netlink family */
595static struct genl_family hwsim_genl_family;
7882513b 596
62759361
JR		 597enum hwsim_multicast_groups {
598 HWSIM_MCGRP_CONFIG,
599};
600
601static const struct genl_multicast_group hwsim_mcgrps[] = {
602 [HWSIM_MCGRP_CONFIG] = { .name = "config", },
603};
604
7882513b
JL		 605/* MAC80211_HWSIM netlink policy */
606
205d2429 607static const struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
9ddd12af
JB		 608 [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
609 [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
7882513b
JL		 610 [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
611 .len = IEEE80211_MAX_DATA_LEN },
612 [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
613 [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
614 [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
615 [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC,
9ddd12af
JB		 616 .len = IEEE80211_TX_MAX_RATES *
617 sizeof(struct hwsim_tx_rate)},
7882513b 618 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
bc791098
JB		 619 [HWSIM_ATTR_CHANNELS] = { .type = NLA_U32 },
620 [HWSIM_ATTR_RADIO_ID] = { .type = NLA_U32 },
26b0e411
JB		 621 [HWSIM_ATTR_REG_HINT_ALPHA2] = { .type = NLA_STRING, .len = 2 },
622 [HWSIM_ATTR_REG_CUSTOM_REG] = { .type = NLA_U32 },
623 [HWSIM_ATTR_REG_STRICT_REG] = { .type = NLA_FLAG },
8c66a3d9 624 [HWSIM_ATTR_SUPPORT_P2P_DEVICE] = { .type = NLA_FLAG },
e9ed49bf 625 [HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE] = { .type = NLA_FLAG },
de29eda8
JB		 626 [HWSIM_ATTR_RADIO_NAME] = { .type = NLA_STRING },
627 [HWSIM_ATTR_NO_VIF] = { .type = NLA_FLAG },
628 [HWSIM_ATTR_FREQ] = { .type = NLA_U32 },
7882513b 629};
acc1e7a3 630
de0421d5
JB		 631static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
632 struct sk_buff *skb,
633 struct ieee80211_channel *chan);
634
635/* sysfs attributes */
636static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
637{
638 struct mac80211_hwsim_data *data = dat;
639 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
640 struct sk_buff *skb;
641 struct ieee80211_pspoll *pspoll;
642
643 if (!vp->assoc)
644 return;
645
646 wiphy_debug(data->hw->wiphy,
647 "%s: send PS-Poll to %pM for aid %d\n",
648 __func__, vp->bssid, vp->aid);
649
650 skb = dev_alloc_skb(sizeof(*pspoll));
651 if (!skb)
652 return;
653 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
654 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
655 IEEE80211_STYPE_PSPOLL |
656 IEEE80211_FCTL_PM);
657 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
658 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
659 memcpy(pspoll->ta, mac, ETH_ALEN);
660
661 rcu_read_lock();
662 mac80211_hwsim_tx_frame(data->hw, skb,
663 rcu_dereference(vif->chanctx_conf)->def.chan);
664 rcu_read_unlock();
665}
666
667static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
668 struct ieee80211_vif *vif, int ps)
669{
670 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
671 struct sk_buff *skb;
672 struct ieee80211_hdr *hdr;
673
674 if (!vp->assoc)
675 return;
676
677 wiphy_debug(data->hw->wiphy,
678 "%s: send data::nullfunc to %pM ps=%d\n",
679 __func__, vp->bssid, ps);
680
681 skb = dev_alloc_skb(sizeof(*hdr));
682 if (!skb)
683 return;
684 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
685 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
686 IEEE80211_STYPE_NULLFUNC |
687 (ps ? IEEE80211_FCTL_PM : 0));
688 hdr->duration_id = cpu_to_le16(0);
689 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
690 memcpy(hdr->addr2, mac, ETH_ALEN);
691 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
692
693 rcu_read_lock();
694 mac80211_hwsim_tx_frame(data->hw, skb,
695 rcu_dereference(vif->chanctx_conf)->def.chan);
696 rcu_read_unlock();
697}
698
699
700static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
701 struct ieee80211_vif *vif)
702{
703 struct mac80211_hwsim_data *data = dat;
704 hwsim_send_nullfunc(data, mac, vif, 1);
705}
706
707static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
708 struct ieee80211_vif *vif)
709{
710 struct mac80211_hwsim_data *data = dat;
711 hwsim_send_nullfunc(data, mac, vif, 0);
712}
713
714static int hwsim_fops_ps_read(void *dat, u64 *val)
715{
716 struct mac80211_hwsim_data *data = dat;
717 *val = data->ps;
718 return 0;
719}
720
721static int hwsim_fops_ps_write(void *dat, u64 val)
722{
723 struct mac80211_hwsim_data *data = dat;
724 enum ps_mode old_ps;
725
726 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
727 val != PS_MANUAL_POLL)
728 return -EINVAL;
729
730 old_ps = data->ps;
731 data->ps = val;
732
a809ca5e 733 local_bh_disable();
de0421d5 734 if (val == PS_MANUAL_POLL) {
a809ca5e
JB		 735 ieee80211_iterate_active_interfaces_atomic(
736 data->hw, IEEE80211_IFACE_ITER_NORMAL,
737 hwsim_send_ps_poll, data);
de0421d5
JB		 738 data->ps_poll_pending = true;
739 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
a809ca5e
JB		 740 ieee80211_iterate_active_interfaces_atomic(
741 data->hw, IEEE80211_IFACE_ITER_NORMAL,
742 hwsim_send_nullfunc_ps, data);
de0421d5 743 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
a809ca5e
JB		 744 ieee80211_iterate_active_interfaces_atomic(
745 data->hw, IEEE80211_IFACE_ITER_NORMAL,
746 hwsim_send_nullfunc_no_ps, data);
de0421d5 747 }
a809ca5e 748 local_bh_enable();
de0421d5
JB		 749
750 return 0;
751}
752
753DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
754 "%llu\n");
755
756static int hwsim_write_simulate_radar(void *dat, u64 val)
757{
758 struct mac80211_hwsim_data *data = dat;
759
760 ieee80211_radar_detected(data->hw);
761
762 return 0;
763}
764
765DEFINE_SIMPLE_ATTRIBUTE(hwsim_simulate_radar, NULL,
766 hwsim_write_simulate_radar, "%llu\n");
767
768static int hwsim_fops_group_read(void *dat, u64 *val)
769{
770 struct mac80211_hwsim_data *data = dat;
771 *val = data->group;
772 return 0;
773}
774
775static int hwsim_fops_group_write(void *dat, u64 val)
776{
777 struct mac80211_hwsim_data *data = dat;
778 data->group = val;
779 return 0;
780}
781
782DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
783 hwsim_fops_group_read, hwsim_fops_group_write,
784 "%llx\n");
785
d0cf9c0d
SH		 786static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
787 struct net_device *dev)
acc1e7a3
JM		 788{
789 /* TODO: allow packet injection */
790 dev_kfree_skb(skb);
6ed10654 791 return NETDEV_TX_OK;
acc1e7a3
JM		 792}
793
b66851c3
TP		 794static inline u64 mac80211_hwsim_get_tsf_raw(void)
795{
796 return ktime_to_us(ktime_get_real());
797}
798
2f40b940
JC		 799static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
800{
b66851c3 801 u64 now = mac80211_hwsim_get_tsf_raw();
2f40b940
JC		 802 return cpu_to_le64(now + data->tsf_offset);
803}
acc1e7a3 804
12ce8ba3 805static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
b66851c3 806 struct ieee80211_vif *vif)
12ce8ba3
JC		 807{
808 struct mac80211_hwsim_data *data = hw->priv;
809 return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
810}
811
812static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
813 struct ieee80211_vif *vif, u64 tsf)
814{
815 struct mac80211_hwsim_data *data = hw->priv;
45034bfb 816 u64 now = mac80211_hwsim_get_tsf(hw, vif);
c51f8783 817 u32 bcn_int = data->beacon_int;
79211c8e 818 u64 delta = abs(tsf - now);
45034bfb 819
c51f8783 820 /* adjust after beaconing with new timestamp at old TBTT */
5d26b508
AB		 821 if (tsf > now) {
822 data->tsf_offset += delta;
823 data->bcn_delta = do_div(delta, bcn_int);
824 } else {
825 data->tsf_offset -= delta;
4fb7f8af 826 data->bcn_delta = -(s64)do_div(delta, bcn_int);
5d26b508 827 }
12ce8ba3
JC		 828}
829
acc1e7a3 830static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
e8261171
JB		 831 struct sk_buff *tx_skb,
832 struct ieee80211_channel *chan)
acc1e7a3
JM		 833{
834 struct mac80211_hwsim_data *data = hw->priv;
835 struct sk_buff *skb;
836 struct hwsim_radiotap_hdr *hdr;
837 u16 flags;
838 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
839 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
840
89f44d8c
AK		 841 if (WARN_ON(!txrate))
842 return;
843
acc1e7a3
JM		 844 if (!netif_running(hwsim_mon))
845 return;
846
847 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
848 if (skb == NULL)
849 return;
850
851 hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
852 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
853 hdr->hdr.it_pad = 0;
854 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
f248f105
JM		 855 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
856 (1 << IEEE80211_RADIOTAP_RATE) |
2f40b940 857 (1 << IEEE80211_RADIOTAP_TSFT) |
f248f105 858 (1 << IEEE80211_RADIOTAP_CHANNEL));
2f40b940 859 hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
acc1e7a3
JM		 860 hdr->rt_flags = 0;
861 hdr->rt_rate = txrate->bitrate / 5;
e8261171 862 hdr->rt_channel = cpu_to_le16(chan->center_freq);
acc1e7a3
JM		 863 flags = IEEE80211_CHAN_2GHZ;
864 if (txrate->flags & IEEE80211_RATE_ERP_G)
865 flags |= IEEE80211_CHAN_OFDM;
866 else
867 flags |= IEEE80211_CHAN_CCK;
868 hdr->rt_chbitmask = cpu_to_le16(flags);
869
870 skb->dev = hwsim_mon;
6b163a85 871 skb_reset_mac_header(skb);
acc1e7a3
JM		 872 skb->ip_summed = CHECKSUM_UNNECESSARY;
873 skb->pkt_type = PACKET_OTHERHOST;
f248f105 874 skb->protocol = htons(ETH_P_802_2);
acc1e7a3
JM		 875 memset(skb->cb, 0, sizeof(skb->cb));
876 netif_rx(skb);
877}
878
879
e8261171
JB		 880static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
881 const u8 *addr)
6c085227 882{
6c085227 883 struct sk_buff *skb;
76a56eb3 884 struct hwsim_radiotap_ack_hdr *hdr;
6c085227
JM		 885 u16 flags;
886 struct ieee80211_hdr *hdr11;
887
888 if (!netif_running(hwsim_mon))
889 return;
890
891 skb = dev_alloc_skb(100);
892 if (skb == NULL)
893 return;
894
76a56eb3 895 hdr = (struct hwsim_radiotap_ack_hdr *) skb_put(skb, sizeof(*hdr));
6c085227
JM		 896 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
897 hdr->hdr.it_pad = 0;
898 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
899 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
900 (1 << IEEE80211_RADIOTAP_CHANNEL));
901 hdr->rt_flags = 0;
76a56eb3 902 hdr->pad = 0;
e8261171 903 hdr->rt_channel = cpu_to_le16(chan->center_freq);
6c085227
JM		 904 flags = IEEE80211_CHAN_2GHZ;
905 hdr->rt_chbitmask = cpu_to_le16(flags);
906
907 hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
908 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
909 IEEE80211_STYPE_ACK);
910 hdr11->duration_id = cpu_to_le16(0);
911 memcpy(hdr11->addr1, addr, ETH_ALEN);
912
913 skb->dev = hwsim_mon;
6b163a85 914 skb_reset_mac_header(skb);
6c085227
JM		 915 skb->ip_summed = CHECKSUM_UNNECESSARY;
916 skb->pkt_type = PACKET_OTHERHOST;
917 skb->protocol = htons(ETH_P_802_2);
918 memset(skb->cb, 0, sizeof(skb->cb));
919 netif_rx(skb);
920}
921
3283e286
JB		 922struct mac80211_hwsim_addr_match_data {
923 u8 addr[ETH_ALEN];
924 bool ret;
925};
926
927static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
928 struct ieee80211_vif *vif)
929{
930 struct mac80211_hwsim_addr_match_data *md = data;
931
932 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
933 md->ret = true;
934}
935
936static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
937 const u8 *addr)
938{
939 struct mac80211_hwsim_addr_match_data md = {
940 .ret = false,
941 };
942
339467b9
JB		 943 if (data->scanning && memcmp(addr, data->scan_addr, ETH_ALEN) == 0)
944 return true;
945
3283e286
JB		 946 memcpy(md.addr, addr, ETH_ALEN);
947
948 ieee80211_iterate_active_interfaces_atomic(data->hw,
949 IEEE80211_IFACE_ITER_NORMAL,
950 mac80211_hwsim_addr_iter,
951 &md);
952
953 return md.ret;
954}
6c085227 955
fc6971d4
JM		 956static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
957 struct sk_buff *skb)
958{
959 switch (data->ps) {
960 case PS_DISABLED:
961 return true;
962 case PS_ENABLED:
963 return false;
964 case PS_AUTO_POLL:
965 /* TODO: accept (some) Beacons by default and other frames only
966 * if pending PS-Poll has been sent */
967 return true;
968 case PS_MANUAL_POLL:
969 /* Allow unicast frames to own address if there is a pending
970 * PS-Poll */
971 if (data->ps_poll_pending &&
3283e286 972 mac80211_hwsim_addr_match(data, skb->data + 4)) {
fc6971d4
JM		 973 data->ps_poll_pending = false;
974 return true;
975 }
976 return false;
977 }
978
979 return true;
980}
981
f21e4d8e
MW		 982static int hwsim_unicast_netgroup(struct mac80211_hwsim_data *data,
983 struct sk_buff *skb, int portid)
984{
985 struct net *net;
986 bool found = false;
987 int res = -ENOENT;
988
989 rcu_read_lock();
990 for_each_net_rcu(net) {
991 if (data->netgroup == hwsim_net_get_netgroup(net)) {
992 res = genlmsg_unicast(net, skb, portid);
993 found = true;
994 break;
995 }
996 }
997 rcu_read_unlock();
998
999 if (!found)
1000 nlmsg_free(skb);
1001
1002 return res;
1003}
1004
7882513b
JL		 1005static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
1006 struct sk_buff *my_skb,
15e47304 1007 int dst_portid)
7882513b
JL		 1008{
1009 struct sk_buff *skb;
1010 struct mac80211_hwsim_data *data = hw->priv;
1011 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
1012 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
1013 void *msg_head;
1014 unsigned int hwsim_flags = 0;
1015 int i;
1016 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
959eb2fd 1017 uintptr_t cookie;
7882513b 1018
7882513b
JL		 1019 if (data->ps != PS_DISABLED)
1020 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1021 /* If the queue contains MAX_QUEUE skb's drop some */
1022 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
1023 /* Droping until WARN_QUEUE level */
2155c3f8 1024 while (skb_queue_len(&data->pending) >= WARN_QUEUE) {
b7bc9679 1025 ieee80211_free_txskb(hw, skb_dequeue(&data->pending));
2155c3f8
BG		 1026 data->tx_dropped++;
1027 }
7882513b
JL		 1028 }
1029
58050fce 1030 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
7882513b
JL		 1031 if (skb == NULL)
1032 goto nla_put_failure;
1033
1034 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
1035 HWSIM_CMD_FRAME);
1036 if (msg_head == NULL) {
1037 printk(KERN_DEBUG "mac80211_hwsim: problem with msg_head\n");
1038 goto nla_put_failure;
1039 }
1040
354210f8
BC		 1041 if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
1042 ETH_ALEN, data->addresses[1].addr))
633c9389 1043 goto nla_put_failure;
265dc7f0 1044
7882513b 1045 /* We get the skb->data */
633c9389
DM		 1046 if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
1047 goto nla_put_failure;
7882513b
JL		 1048
1049 /* We get the flags for this transmission, and we translate them to
1050 wmediumd flags */
1051
1052 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
1053 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
1054
1055 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
1056 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
1057
633c9389
DM		 1058 if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
1059 goto nla_put_failure;
7882513b 1060
4f86ed8f
BG		 1061 if (nla_put_u32(skb, HWSIM_ATTR_FREQ, data->channel->center_freq))
1062 goto nla_put_failure;
1063
7882513b
JL		 1064 /* We get the tx control (rate and retries) info*/
1065
1066 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
1067 tx_attempts[i].idx = info->status.rates[i].idx;
1068 tx_attempts[i].count = info->status.rates[i].count;
1069 }
1070
633c9389
DM		 1071 if (nla_put(skb, HWSIM_ATTR_TX_INFO,
1072 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
1073 tx_attempts))
1074 goto nla_put_failure;
7882513b
JL		 1075
1076 /* We create a cookie to identify this skb */
959eb2fd
JB		 1077 data->pending_cookie++;
1078 cookie = data->pending_cookie;
1079 info->rate_driver_data[0] = (void *)cookie;
08f4cbb8 1080 if (nla_put_u64_64bit(skb, HWSIM_ATTR_COOKIE, cookie, HWSIM_ATTR_PAD))
633c9389 1081 goto nla_put_failure;
7882513b
JL		 1082
1083 genlmsg_end(skb, msg_head);
f21e4d8e 1084 if (hwsim_unicast_netgroup(data, skb, dst_portid))
f2831e20 1085 goto err_free_txskb;
7882513b
JL		 1086
1087 /* Enqueue the packet */
1088 skb_queue_tail(&data->pending, my_skb);
2155c3f8
BG		 1089 data->tx_pkts++;
1090 data->tx_bytes += my_skb->len;
7882513b
JL		 1091 return;
1092
1093nla_put_failure:
f2831e20
BC		 1094 nlmsg_free(skb);
1095err_free_txskb:
c393862f 1096 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
b7bc9679 1097 ieee80211_free_txskb(hw, my_skb);
2155c3f8 1098 data->tx_failed++;
7882513b
JL		 1099}
1100
e8261171
JB		 1101static bool hwsim_chans_compat(struct ieee80211_channel *c1,
1102 struct ieee80211_channel *c2)
1103{
1104 if (!c1 || !c2)
1105 return false;
1106
1107 return c1->center_freq == c2->center_freq;
1108}
1109
1110struct tx_iter_data {
1111 struct ieee80211_channel *channel;
1112 bool receive;
1113};
1114
1115static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
1116 struct ieee80211_vif *vif)
1117{
1118 struct tx_iter_data *data = _data;
1119
1120 if (!vif->chanctx_conf)
1121 return;
1122
1123 if (!hwsim_chans_compat(data->channel,
4bf88530 1124 rcu_dereference(vif->chanctx_conf)->def.chan))
e8261171
JB		 1125 return;
1126
1127 data->receive = true;
1128}
1129
1f7bba79
JB		 1130static void mac80211_hwsim_add_vendor_rtap(struct sk_buff *skb)
1131{
1132 /*
1133 * To enable this code, #define the HWSIM_RADIOTAP_OUI,
1134 * e.g. like this:
1135 * #define HWSIM_RADIOTAP_OUI "\x02\x00\x00"
1136 * (but you should use a valid OUI, not that)
1137 *
1138 * If anyone wants to 'donate' a radiotap OUI/subns code
1139 * please send a patch removing this #ifdef and changing
1140 * the values accordingly.
1141 */
1142#ifdef HWSIM_RADIOTAP_OUI
1143 struct ieee80211_vendor_radiotap *rtap;
1144
1145 /*
1146 * Note that this code requires the headroom in the SKB
1147 * that was allocated earlier.
1148 */
1149 rtap = (void *)skb_push(skb, sizeof(*rtap) + 8 + 4);
1150 rtap->oui[0] = HWSIM_RADIOTAP_OUI[0];
1151 rtap->oui[1] = HWSIM_RADIOTAP_OUI[1];
1152 rtap->oui[2] = HWSIM_RADIOTAP_OUI[2];
1153 rtap->subns = 127;
1154
1155 /*
1156 * Radiotap vendor namespaces can (and should) also be
1157 * split into fields by using the standard radiotap
1158 * presence bitmap mechanism. Use just BIT(0) here for
1159 * the presence bitmap.
1160 */
1161 rtap->present = BIT(0);
1162 /* We have 8 bytes of (dummy) data */
1163 rtap->len = 8;
1164 /* For testing, also require it to be aligned */
1165 rtap->align = 8;
1166 /* And also test that padding works, 4 bytes */
1167 rtap->pad = 4;
1168 /* push the data */
1169 memcpy(rtap->data, "ABCDEFGH", 8);
1170 /* make sure to clear padding, mac80211 doesn't */
1171 memset(rtap->data + 8, 0, 4);
1172
1173 IEEE80211_SKB_RXCB(skb)->flag |= RX_FLAG_RADIOTAP_VENDOR_DATA;
1174#endif
1175}
1176
7882513b 1177static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
e8261171
JB		 1178 struct sk_buff *skb,
1179 struct ieee80211_channel *chan)
acc1e7a3 1180{
0e057d73
JB		 1181 struct mac80211_hwsim_data *data = hw->priv, *data2;
1182 bool ack = false;
e36cfdc9 1183 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
acc1e7a3 1184 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
e36cfdc9 1185 struct ieee80211_rx_status rx_status;
b66851c3 1186 u64 now;
acc1e7a3
JM		 1187
1188 memset(&rx_status, 0, sizeof(rx_status));
f4bda337 1189 rx_status.flag |= RX_FLAG_MACTIME_START;
e8261171
JB		 1190 rx_status.freq = chan->center_freq;
1191 rx_status.band = chan->band;
dad6330d
KB		 1192 if (info->control.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) {
1193 rx_status.rate_idx =
1194 ieee80211_rate_get_vht_mcs(&info->control.rates[0]);
8613c948 1195 rx_status.nss =
dad6330d 1196 ieee80211_rate_get_vht_nss(&info->control.rates[0]);
da6a4352 1197 rx_status.encoding = RX_ENC_VHT;
dad6330d
KB		 1198 } else {
1199 rx_status.rate_idx = info->control.rates[0].idx;
1200 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
da6a4352 1201 rx_status.encoding = RX_ENC_HT;
dad6330d 1202 }
281ed297 1203 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
7fdd69c5 1204 rx_status.enc_flags |= RX_ENC_FLAG_40MHZ;
281ed297 1205 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
7fdd69c5 1206 rx_status.enc_flags |= RX_ENC_FLAG_SHORT_GI;
4b14c96d 1207 /* TODO: simulate real signal strength (and optional packet loss) */
1d5e9f80
JB		 1208 rx_status.signal = -50;
1209 if (info->control.vif)
1210 rx_status.signal += info->control.vif->bss_conf.txpower;
acc1e7a3 1211
fc6971d4
JM		 1212 if (data->ps != PS_DISABLED)
1213 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1214
90e3012e
JB		 1215 /* release the skb's source info */
1216 skb_orphan(skb);
c0acf38e 1217 skb_dst_drop(skb);
90e3012e
JB		 1218 skb->mark = 0;
1219 secpath_reset(skb);
1220 nf_reset(skb);
1221
b66851c3
TP		 1222 /*
1223 * Get absolute mactime here so all HWs RX at the "same time", and
1224 * absolute TX time for beacon mactime so the timestamp matches.
1225 * Giving beacons a different mactime than non-beacons looks messy, but
1226 * it helps the Toffset be exact and a ~10us mactime discrepancy
1227 * probably doesn't really matter.
1228 */
1229 if (ieee80211_is_beacon(hdr->frame_control) ||
1230 ieee80211_is_probe_resp(hdr->frame_control))
1231 now = data->abs_bcn_ts;
1232 else
1233 now = mac80211_hwsim_get_tsf_raw();
1234
acc1e7a3 1235 /* Copy skb to all enabled radios that are on the current frequency */
0e057d73
JB		 1236 spin_lock(&hwsim_radio_lock);
1237 list_for_each_entry(data2, &hwsim_radios, list) {
acc1e7a3 1238 struct sk_buff *nskb;
e8261171
JB		 1239 struct tx_iter_data tx_iter_data = {
1240 .receive = false,
1241 .channel = chan,
1242 };
acc1e7a3 1243
0e057d73 1244 if (data == data2)
acc1e7a3 1245 continue;
0e057d73 1246
e8261171
JB		 1247 if (!data2->started || (data2->idle && !data2->tmp_chan) ||
1248 !hwsim_ps_rx_ok(data2, skb))
acc1e7a3
JM		 1249 continue;
1250
e8261171
JB		 1251 if (!(data->group & data2->group))
1252 continue;
1253
100cb9ff
MW		 1254 if (data->netgroup != data2->netgroup)
1255 continue;
1256
e8261171
JB		 1257 if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
1258 !hwsim_chans_compat(chan, data2->channel)) {
1259 ieee80211_iterate_active_interfaces_atomic(
8b2c9824
JB		 1260 data2->hw, IEEE80211_IFACE_ITER_NORMAL,
1261 mac80211_hwsim_tx_iter, &tx_iter_data);
e8261171
JB		 1262 if (!tx_iter_data.receive)
1263 continue;
1264 }
1265
90b9e446
JB		 1266 /*
1267 * reserve some space for our vendor and the normal
1268 * radiotap header, since we're copying anyway
1269 */
a357d7f9
JB		 1270 if (skb->len < PAGE_SIZE && paged_rx) {
1271 struct page *page = alloc_page(GFP_ATOMIC);
1272
1273 if (!page)
1274 continue;
1275
1276 nskb = dev_alloc_skb(128);
1277 if (!nskb) {
1278 __free_page(page);
1279 continue;
1280 }
1281
1282 memcpy(page_address(page), skb->data, skb->len);
1283 skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
1284 } else {
1285 nskb = skb_copy(skb, GFP_ATOMIC);
1286 if (!nskb)
1287 continue;
1288 }
acc1e7a3 1289
265dc7f0 1290 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
0e057d73 1291 ack = true;
f483ad25 1292
b66851c3 1293 rx_status.mactime = now + data2->tsf_offset;
90b9e446 1294
f1d58c25 1295 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
1f7bba79
JB		 1296
1297 mac80211_hwsim_add_vendor_rtap(nskb);
1298
2155c3f8
BG		 1299 data2->rx_pkts++;
1300 data2->rx_bytes += nskb->len;
f1d58c25 1301 ieee80211_rx_irqsafe(data2->hw, nskb);
acc1e7a3 1302 }
0e057d73 1303 spin_unlock(&hwsim_radio_lock);
acc1e7a3 1304
e36cfdc9
JM		 1305 return ack;
1306}
1307
36323f81
TH		 1308static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
1309 struct ieee80211_tx_control *control,
1310 struct sk_buff *skb)
e36cfdc9 1311{
e8261171
JB		 1312 struct mac80211_hwsim_data *data = hw->priv;
1313 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
732b5395 1314 struct ieee80211_hdr *hdr = (void *)skb->data;
e8261171
JB		 1315 struct ieee80211_chanctx_conf *chanctx_conf;
1316 struct ieee80211_channel *channel;
0e057d73 1317 bool ack;
15e47304 1318 u32 _portid;
e36cfdc9 1319
e8261171 1320 if (WARN_ON(skb->len < 10)) {
e36cfdc9 1321 /* Should not happen; just a sanity check for addr1 use */
fe0f3cd2 1322 ieee80211_free_txskb(hw, skb);
7bb45683 1323 return;
e36cfdc9
JM		 1324 }
1325
361c3e04 1326 if (!data->use_chanctx) {
e8261171
JB		 1327 channel = data->channel;
1328 } else if (txi->hw_queue == 4) {
1329 channel = data->tmp_chan;
1330 } else {
1331 chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf);
1332 if (chanctx_conf)
4bf88530 1333 channel = chanctx_conf->def.chan;
e8261171
JB		 1334 else
1335 channel = NULL;
1336 }
1337
1338 if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
fe0f3cd2 1339 ieee80211_free_txskb(hw, skb);
e8261171
JB		 1340 return;
1341 }
1342
1343 if (data->idle && !data->tmp_chan) {
1344 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
fe0f3cd2 1345 ieee80211_free_txskb(hw, skb);
e8261171
JB		 1346 return;
1347 }
1348
1349 if (txi->control.vif)
1350 hwsim_check_magic(txi->control.vif);
1351 if (control->sta)
1352 hwsim_check_sta_magic(control->sta);
1353
30686bf7 1354 if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE))
1eb32179
KB		 1355 ieee80211_get_tx_rates(txi->control.vif, control->sta, skb,
1356 txi->control.rates,
1357 ARRAY_SIZE(txi->control.rates));
e8261171 1358
1eb32179 1359 txi->rate_driver_data[0] = channel;
732b5395
JM		 1360
1361 if (skb->len >= 24 + 8 &&
1362 ieee80211_is_probe_resp(hdr->frame_control)) {
1363 /* fake header transmission time */
1364 struct ieee80211_mgmt *mgmt;
1365 struct ieee80211_rate *txrate;
1366 u64 ts;
1367
1368 mgmt = (struct ieee80211_mgmt *)skb->data;
1369 txrate = ieee80211_get_tx_rate(hw, txi);
1370 ts = mac80211_hwsim_get_tsf_raw();
1371 mgmt->u.probe_resp.timestamp =
1372 cpu_to_le64(ts + data->tsf_offset +
1373 24 * 8 * 10 / txrate->bitrate);
1374 }
1375
e8261171
JB		 1376 mac80211_hwsim_monitor_rx(hw, skb, channel);
1377
7882513b 1378 /* wmediumd mode check */
f21e4d8e 1379 _portid = ACCESS_ONCE(data->wmediumd);
7882513b 1380
15e47304
EB		 1381 if (_portid)
1382 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
7882513b
JL		 1383
1384 /* NO wmediumd detected, perfect medium simulation */
2155c3f8
BG		 1385 data->tx_pkts++;
1386 data->tx_bytes += skb->len;
e8261171 1387 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
7882513b 1388
f06b7ab8 1389 if (ack && skb->len >= 16)
e8261171 1390 mac80211_hwsim_monitor_ack(channel, hdr->addr2);
e36cfdc9 1391
e6a9854b 1392 ieee80211_tx_info_clear_status(txi);
2a4ffa4c
JC		 1393
1394 /* frame was transmitted at most favorable rate at first attempt */
1395 txi->control.rates[0].count = 1;
1396 txi->control.rates[1].idx = -1;
1397
e6a9854b
JB		 1398 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
1399 txi->flags |= IEEE80211_TX_STAT_ACK;
acc1e7a3 1400 ieee80211_tx_status_irqsafe(hw, skb);
acc1e7a3
JM		 1401}
1402
1403
1404static int mac80211_hwsim_start(struct ieee80211_hw *hw)
1405{
1406 struct mac80211_hwsim_data *data = hw->priv;
c96c31e4 1407 wiphy_debug(hw->wiphy, "%s\n", __func__);
3db1cd5c 1408 data->started = true;
acc1e7a3
JM		 1409 return 0;
1410}
1411
1412
1413static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
1414{
1415 struct mac80211_hwsim_data *data = hw->priv;
3db1cd5c 1416 data->started = false;
01e59e46 1417 tasklet_hrtimer_cancel(&data->beacon_timer);
c96c31e4 1418 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 1419}
1420
1421
1422static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
1ed32e4f 1423 struct ieee80211_vif *vif)
acc1e7a3 1424{
c96c31e4 1425 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 1426 __func__, ieee80211_vif_type_p2p(vif),
1427 vif->addr);
1ed32e4f 1428 hwsim_set_magic(vif);
e8261171
JB		 1429
1430 vif->cab_queue = 0;
1431 vif->hw_queue[IEEE80211_AC_VO] = 0;
1432 vif->hw_queue[IEEE80211_AC_VI] = 1;
1433 vif->hw_queue[IEEE80211_AC_BE] = 2;
1434 vif->hw_queue[IEEE80211_AC_BK] = 3;
1435
acc1e7a3
JM		 1436 return 0;
1437}
1438
1439
c35d0270
JB		 1440static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
1441 struct ieee80211_vif *vif,
2ca27bcf
JB		 1442 enum nl80211_iftype newtype,
1443 bool newp2p)
c35d0270 1444{
2ca27bcf 1445 newtype = ieee80211_iftype_p2p(newtype, newp2p);
c35d0270
JB		 1446 wiphy_debug(hw->wiphy,
1447 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
2ca27bcf
JB		 1448 __func__, ieee80211_vif_type_p2p(vif),
1449 newtype, vif->addr);
c35d0270
JB		 1450 hwsim_check_magic(vif);
1451
3eb92f6a
JB		 1452 /*
1453 * interface may change from non-AP to AP in
1454 * which case this needs to be set up again
1455 */
1456 vif->cab_queue = 0;
1457
c35d0270
JB		 1458 return 0;
1459}
1460
acc1e7a3 1461static void mac80211_hwsim_remove_interface(
1ed32e4f 1462 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
acc1e7a3 1463{
c96c31e4 1464 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 1465 __func__, ieee80211_vif_type_p2p(vif),
1466 vif->addr);
1ed32e4f
JB		 1467 hwsim_check_magic(vif);
1468 hwsim_clear_magic(vif);
acc1e7a3
JM		 1469}
1470
e8261171
JB		 1471static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
1472 struct sk_buff *skb,
1473 struct ieee80211_channel *chan)
1474{
f21e4d8e
MW		 1475 struct mac80211_hwsim_data *data = hw->priv;
1476 u32 _pid = ACCESS_ONCE(data->wmediumd);
e8261171 1477
30686bf7 1478 if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE)) {
1eb32179
KB		 1479 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1480 ieee80211_get_tx_rates(txi->control.vif, NULL, skb,
1481 txi->control.rates,
1482 ARRAY_SIZE(txi->control.rates));
1483 }
1484
e8261171
JB		 1485 mac80211_hwsim_monitor_rx(hw, skb, chan);
1486
1487 if (_pid)
1488 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
1489
1490 mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
1491 dev_kfree_skb(skb);
1492}
acc1e7a3
JM		 1493
1494static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
1495 struct ieee80211_vif *vif)
1496{
b66851c3
TP		 1497 struct mac80211_hwsim_data *data = arg;
1498 struct ieee80211_hw *hw = data->hw;
1499 struct ieee80211_tx_info *info;
1500 struct ieee80211_rate *txrate;
1501 struct ieee80211_mgmt *mgmt;
acc1e7a3 1502 struct sk_buff *skb;
acc1e7a3 1503
8aa21e6f
JB		 1504 hwsim_check_magic(vif);
1505
55b39619 1506 if (vif->type != NL80211_IFTYPE_AP &&
2b2d7795
JB		 1507 vif->type != NL80211_IFTYPE_MESH_POINT &&
1508 vif->type != NL80211_IFTYPE_ADHOC)
acc1e7a3
JM		 1509 return;
1510
1511 skb = ieee80211_beacon_get(hw, vif);
1512 if (skb == NULL)
1513 return;
b66851c3 1514 info = IEEE80211_SKB_CB(skb);
30686bf7 1515 if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE))
1eb32179
KB		 1516 ieee80211_get_tx_rates(vif, NULL, skb,
1517 info->control.rates,
1518 ARRAY_SIZE(info->control.rates));
1519
b66851c3
TP		 1520 txrate = ieee80211_get_tx_rate(hw, info);
1521
1522 mgmt = (struct ieee80211_mgmt *) skb->data;
1523 /* fake header transmission time */
1524 data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
1525 mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
1526 data->tsf_offset +
1527 24 * 8 * 10 / txrate->bitrate);
7882513b 1528
e8261171 1529 mac80211_hwsim_tx_frame(hw, skb,
4bf88530 1530 rcu_dereference(vif->chanctx_conf)->def.chan);
0037db63
AO		 1531
1532 if (vif->csa_active && ieee80211_csa_is_complete(vif))
1533 ieee80211_csa_finish(vif);
acc1e7a3
JM		 1534}
1535
01e59e46
TP		 1536static enum hrtimer_restart
1537mac80211_hwsim_beacon(struct hrtimer *timer)
acc1e7a3 1538{
01e59e46
TP		 1539 struct mac80211_hwsim_data *data =
1540 container_of(timer, struct mac80211_hwsim_data,
1541 beacon_timer.timer);
1542 struct ieee80211_hw *hw = data->hw;
1543 u64 bcn_int = data->beacon_int;
1544 ktime_t next_bcn;
acc1e7a3 1545
4c4c671a 1546 if (!data->started)
01e59e46 1547 goto out;
acc1e7a3 1548
f248f105 1549 ieee80211_iterate_active_interfaces_atomic(
8b2c9824 1550 hw, IEEE80211_IFACE_ITER_NORMAL,
b66851c3 1551 mac80211_hwsim_beacon_tx, data);
acc1e7a3 1552
c51f8783
TP		 1553 /* beacon at new TBTT + beacon interval */
1554 if (data->bcn_delta) {
1555 bcn_int -= data->bcn_delta;
1556 data->bcn_delta = 0;
1557 }
1558
01e59e46
TP		 1559 next_bcn = ktime_add(hrtimer_get_expires(timer),
1560 ns_to_ktime(bcn_int * 1000));
1561 tasklet_hrtimer_start(&data->beacon_timer, next_bcn, HRTIMER_MODE_ABS);
1562out:
1563 return HRTIMER_NORESTART;
acc1e7a3
JM		 1564}
1565
675a0b04
KB		 1566static const char * const hwsim_chanwidths[] = {
1567 [NL80211_CHAN_WIDTH_20_NOHT] = "noht",
1568 [NL80211_CHAN_WIDTH_20] = "ht20",
1569 [NL80211_CHAN_WIDTH_40] = "ht40",
1570 [NL80211_CHAN_WIDTH_80] = "vht80",
1571 [NL80211_CHAN_WIDTH_80P80] = "vht80p80",
1572 [NL80211_CHAN_WIDTH_160] = "vht160",
0aaffa9b 1573};
acc1e7a3 1574
e8975581 1575static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
acc1e7a3
JM		 1576{
1577 struct mac80211_hwsim_data *data = hw->priv;
e8975581 1578 struct ieee80211_conf *conf = &hw->conf;
0f78231b
JB		 1579 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
1580 [IEEE80211_SMPS_AUTOMATIC] = "auto",
1581 [IEEE80211_SMPS_OFF] = "off",
1582 [IEEE80211_SMPS_STATIC] = "static",
1583 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
1584 };
7f813ce1 1585 int idx;
0f78231b 1586
675a0b04
KB		 1587 if (conf->chandef.chan)
1588 wiphy_debug(hw->wiphy,
1589 "%s (freq=%d(%d - %d)/%s idle=%d ps=%d smps=%s)\n",
1590 __func__,
1591 conf->chandef.chan->center_freq,
1592 conf->chandef.center_freq1,
1593 conf->chandef.center_freq2,
1594 hwsim_chanwidths[conf->chandef.width],
1595 !!(conf->flags & IEEE80211_CONF_IDLE),
1596 !!(conf->flags & IEEE80211_CONF_PS),
1597 smps_modes[conf->smps_mode]);
1598 else
1599 wiphy_debug(hw->wiphy,
1600 "%s (freq=0 idle=%d ps=%d smps=%s)\n",
1601 __func__,
1602 !!(conf->flags & IEEE80211_CONF_IDLE),
1603 !!(conf->flags & IEEE80211_CONF_PS),
1604 smps_modes[conf->smps_mode]);
acc1e7a3 1605
70541839
JM		 1606 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1607
7f813ce1 1608 WARN_ON(conf->chandef.chan && data->use_chanctx);
e8261171 1609
7f813ce1
JB		 1610 mutex_lock(&data->mutex);
1611 if (data->scanning && conf->chandef.chan) {
1612 for (idx = 0; idx < ARRAY_SIZE(data->survey_data); idx++) {
1613 if (data->survey_data[idx].channel == data->channel) {
1614 data->survey_data[idx].start =
1615 data->survey_data[idx].next_start;
1616 data->survey_data[idx].end = jiffies;
1617 break;
1618 }
1619 }
1620
1621 data->channel = conf->chandef.chan;
e8261171 1622
7f813ce1
JB		 1623 for (idx = 0; idx < ARRAY_SIZE(data->survey_data); idx++) {
1624 if (data->survey_data[idx].channel &&
1625 data->survey_data[idx].channel != data->channel)
1626 continue;
1627 data->survey_data[idx].channel = data->channel;
1628 data->survey_data[idx].next_start = jiffies;
1629 break;
1630 }
1631 } else {
1632 data->channel = conf->chandef.chan;
1633 }
1634 mutex_unlock(&data->mutex);
e8261171 1635
4c4c671a 1636 if (!data->started || !data->beacon_int)
01e59e46
TP		 1637 tasklet_hrtimer_cancel(&data->beacon_timer);
1638 else if (!hrtimer_is_queued(&data->beacon_timer.timer)) {
c51f8783
TP		 1639 u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
1640 u32 bcn_int = data->beacon_int;
1641 u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1642
01e59e46 1643 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1644 ns_to_ktime(until_tbtt * 1000),
01e59e46
TP		 1645 HRTIMER_MODE_REL);
1646 }
acc1e7a3
JM		 1647
1648 return 0;
1649}
1650
1651
1652static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
1653 unsigned int changed_flags,
3ac64bee 1654 unsigned int *total_flags,u64 multicast)
acc1e7a3
JM		 1655{
1656 struct mac80211_hwsim_data *data = hw->priv;
1657
c96c31e4 1658 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 1659
1660 data->rx_filter = 0;
acc1e7a3
JM		 1661 if (*total_flags & FIF_ALLMULTI)
1662 data->rx_filter |= FIF_ALLMULTI;
1663
1664 *total_flags = data->rx_filter;
1665}
1666
0bb861e6
JM		 1667static void mac80211_hwsim_bcn_en_iter(void *data, u8 *mac,
1668 struct ieee80211_vif *vif)
1669{
1670 unsigned int *count = data;
1671 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1672
1673 if (vp->bcn_en)
1674 (*count)++;
1675}
1676
8aa21e6f
JB		 1677static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
1678 struct ieee80211_vif *vif,
1679 struct ieee80211_bss_conf *info,
1680 u32 changed)
1681{
fc6971d4 1682 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
57c4d7b4 1683 struct mac80211_hwsim_data *data = hw->priv;
fc6971d4 1684
8aa21e6f 1685 hwsim_check_magic(vif);
fe63bfa3 1686
0bb861e6
JM		 1687 wiphy_debug(hw->wiphy, "%s(changed=0x%x vif->addr=%pM)\n",
1688 __func__, changed, vif->addr);
fe63bfa3 1689
2d0ddec5 1690 if (changed & BSS_CHANGED_BSSID) {
c96c31e4
JP		 1691 wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
1692 __func__, info->bssid);
2d0ddec5
JB		 1693 memcpy(vp->bssid, info->bssid, ETH_ALEN);
1694 }
1695
fe63bfa3 1696 if (changed & BSS_CHANGED_ASSOC) {
c96c31e4
JP		 1697 wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
1698 info->assoc, info->aid);
fc6971d4
JM		 1699 vp->assoc = info->assoc;
1700 vp->aid = info->aid;
fe63bfa3
JM		 1701 }
1702
01e59e46 1703 if (changed & BSS_CHANGED_BEACON_ENABLED) {
56067628
JB		 1704 wiphy_debug(hw->wiphy, " BCN EN: %d (BI=%u)\n",
1705 info->enable_beacon, info->beacon_int);
0bb861e6 1706 vp->bcn_en = info->enable_beacon;
01e59e46
TP		 1707 if (data->started &&
1708 !hrtimer_is_queued(&data->beacon_timer.timer) &&
1709 info->enable_beacon) {
c51f8783
TP		 1710 u64 tsf, until_tbtt;
1711 u32 bcn_int;
56067628 1712 data->beacon_int = info->beacon_int * 1024;
c51f8783
TP		 1713 tsf = mac80211_hwsim_get_tsf(hw, vif);
1714 bcn_int = data->beacon_int;
1715 until_tbtt = bcn_int - do_div(tsf, bcn_int);
01e59e46 1716 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1717 ns_to_ktime(until_tbtt * 1000),
01e59e46 1718 HRTIMER_MODE_REL);
0bb861e6
JM		 1719 } else if (!info->enable_beacon) {
1720 unsigned int count = 0;
cdb1b805 1721 ieee80211_iterate_active_interfaces_atomic(
0bb861e6
JM		 1722 data->hw, IEEE80211_IFACE_ITER_NORMAL,
1723 mac80211_hwsim_bcn_en_iter, &count);
1724 wiphy_debug(hw->wiphy, " beaconing vifs remaining: %u",
1725 count);
56067628 1726 if (count == 0) {
0bb861e6 1727 tasklet_hrtimer_cancel(&data->beacon_timer);
56067628
JB		 1728 data->beacon_int = 0;
1729 }
0bb861e6 1730 }
57c4d7b4
JB		 1731 }
1732
fe63bfa3 1733 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
c96c31e4
JP		 1734 wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
1735 info->use_cts_prot);
fe63bfa3
JM		 1736 }
1737
1738 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
c96c31e4
JP		 1739 wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
1740 info->use_short_preamble);
fe63bfa3
JM		 1741 }
1742
1743 if (changed & BSS_CHANGED_ERP_SLOT) {
c96c31e4 1744 wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
fe63bfa3
JM		 1745 }
1746
1747 if (changed & BSS_CHANGED_HT) {
4bf88530
JB		 1748 wiphy_debug(hw->wiphy, " HT: op_mode=0x%x\n",
1749 info->ht_operation_mode);
fe63bfa3
JM		 1750 }
1751
1752 if (changed & BSS_CHANGED_BASIC_RATES) {
c96c31e4
JP		 1753 wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
1754 (unsigned long long) info->basic_rates);
fe63bfa3 1755 }
cbc668a7
JB		 1756
1757 if (changed & BSS_CHANGED_TXPOWER)
1758 wiphy_debug(hw->wiphy, " TX Power: %d dBm\n", info->txpower);
8aa21e6f
JB		 1759}
1760
1d669cbf
JB		 1761static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
1762 struct ieee80211_vif *vif,
1763 struct ieee80211_sta *sta)
1764{
1765 hwsim_check_magic(vif);
1766 hwsim_set_sta_magic(sta);
1767
1768 return 0;
1769}
1770
1771static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
1772 struct ieee80211_vif *vif,
1773 struct ieee80211_sta *sta)
1774{
1775 hwsim_check_magic(vif);
1776 hwsim_clear_sta_magic(sta);
1777
1778 return 0;
1779}
1780
8aa21e6f
JB		 1781static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
1782 struct ieee80211_vif *vif,
17741cdc
JB		 1783 enum sta_notify_cmd cmd,
1784 struct ieee80211_sta *sta)
8aa21e6f
JB		 1785{
1786 hwsim_check_magic(vif);
1d669cbf 1787
81c06523 1788 switch (cmd) {
89fad578
CL		 1789 case STA_NOTIFY_SLEEP:
1790 case STA_NOTIFY_AWAKE:
1791 /* TODO: make good use of these flags */
1792 break;
1d669cbf
JB		 1793 default:
1794 WARN(1, "Invalid sta notify: %d\n", cmd);
1795 break;
81c06523
JB		 1796 }
1797}
1798
1799static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
1800 struct ieee80211_sta *sta,
1801 bool set)
1802{
1803 hwsim_check_sta_magic(sta);
1804 return 0;
8aa21e6f 1805}
acc1e7a3 1806
1e898ff8 1807static int mac80211_hwsim_conf_tx(
8a3a3c85
EP		 1808 struct ieee80211_hw *hw,
1809 struct ieee80211_vif *vif, u16 queue,
1e898ff8
JM		 1810 const struct ieee80211_tx_queue_params *params)
1811{
c96c31e4
JP		 1812 wiphy_debug(hw->wiphy,
1813 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1814 __func__, queue,
1815 params->txop, params->cw_min,
1816 params->cw_max, params->aifs);
1e898ff8
JM		 1817 return 0;
1818}
1819
7f813ce1
JB		 1820static int mac80211_hwsim_get_survey(struct ieee80211_hw *hw, int idx,
1821 struct survey_info *survey)
1289723e 1822{
7f813ce1 1823 struct mac80211_hwsim_data *hwsim = hw->priv;
1289723e 1824
7f813ce1 1825 if (idx < 0 || idx >= ARRAY_SIZE(hwsim->survey_data))
1289723e
HS		 1826 return -ENOENT;
1827
7f813ce1
JB		 1828 mutex_lock(&hwsim->mutex);
1829 survey->channel = hwsim->survey_data[idx].channel;
1830 if (!survey->channel) {
1831 mutex_unlock(&hwsim->mutex);
1832 return -ENOENT;
1833 }
1289723e
HS		 1834
1835 /*
7f813ce1 1836 * Magically conjured dummy values --- this is only ok for simulated hardware.
1289723e 1837 *
7f813ce1
JB		 1838 * A real driver which cannot determine real values noise MUST NOT
1839 * report any, especially not a magically conjured ones :-)
1289723e 1840 */
7f813ce1
JB		 1841 survey->filled = SURVEY_INFO_NOISE_DBM |
1842 SURVEY_INFO_TIME |
1843 SURVEY_INFO_TIME_BUSY;
1289723e 1844 survey->noise = -92;
7f813ce1
JB		 1845 survey->time =
1846 jiffies_to_msecs(hwsim->survey_data[idx].end -
1847 hwsim->survey_data[idx].start);
1848 /* report 12.5% of channel time is used */
1849 survey->time_busy = survey->time/8;
1850 mutex_unlock(&hwsim->mutex);
1289723e
HS		 1851
1852 return 0;
1853}
1854
aff89a9b
JB		 1855#ifdef CONFIG_NL80211_TESTMODE
1856/*
1857 * This section contains example code for using netlink
1858 * attributes with the testmode command in nl80211.
1859 */
1860
1861/* These enums need to be kept in sync with userspace */
1862enum hwsim_testmode_attr {
1863 __HWSIM_TM_ATTR_INVALID = 0,
1864 HWSIM_TM_ATTR_CMD = 1,
1865 HWSIM_TM_ATTR_PS = 2,
1866
1867 /* keep last */
1868 __HWSIM_TM_ATTR_AFTER_LAST,
1869 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1870};
1871
1872enum hwsim_testmode_cmd {
1873 HWSIM_TM_CMD_SET_PS = 0,
1874 HWSIM_TM_CMD_GET_PS = 1,
4d6d0ae2
JB		 1875 HWSIM_TM_CMD_STOP_QUEUES = 2,
1876 HWSIM_TM_CMD_WAKE_QUEUES = 3,
aff89a9b
JB		 1877};
1878
1879static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1880 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1881 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1882};
1883
5bc38193 1884static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
52981cd7 1885 struct ieee80211_vif *vif,
5bc38193 1886 void *data, int len)
aff89a9b
JB		 1887{
1888 struct mac80211_hwsim_data *hwsim = hw->priv;
1889 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1890 struct sk_buff *skb;
1891 int err, ps;
1892
1893 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
fceb6435 1894 hwsim_testmode_policy, NULL);
aff89a9b
JB		 1895 if (err)
1896 return err;
1897
1898 if (!tb[HWSIM_TM_ATTR_CMD])
1899 return -EINVAL;
1900
1901 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1902 case HWSIM_TM_CMD_SET_PS:
1903 if (!tb[HWSIM_TM_ATTR_PS])
1904 return -EINVAL;
1905 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1906 return hwsim_fops_ps_write(hwsim, ps);
1907 case HWSIM_TM_CMD_GET_PS:
1908 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1909 nla_total_size(sizeof(u32)));
1910 if (!skb)
1911 return -ENOMEM;
633c9389
DM		 1912 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
1913 goto nla_put_failure;
aff89a9b 1914 return cfg80211_testmode_reply(skb);
4d6d0ae2
JB		 1915 case HWSIM_TM_CMD_STOP_QUEUES:
1916 ieee80211_stop_queues(hw);
1917 return 0;
1918 case HWSIM_TM_CMD_WAKE_QUEUES:
1919 ieee80211_wake_queues(hw);
1920 return 0;
aff89a9b
JB		 1921 default:
1922 return -EOPNOTSUPP;
1923 }
1924
1925 nla_put_failure:
1926 kfree_skb(skb);
1927 return -ENOBUFS;
1928}
1929#endif
1930
8b73d13a
JB		 1931static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1932 struct ieee80211_vif *vif,
50ea05ef 1933 struct ieee80211_ampdu_params *params)
8b73d13a 1934{
50ea05ef
SS		 1935 struct ieee80211_sta *sta = params->sta;
1936 enum ieee80211_ampdu_mlme_action action = params->action;
1937 u16 tid = params->tid;
1938
8b73d13a
JB		 1939 switch (action) {
1940 case IEEE80211_AMPDU_TX_START:
1941 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1942 break;
18b559d5
JB		 1943 case IEEE80211_AMPDU_TX_STOP_CONT:
1944 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1945 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
8b73d13a
JB		 1946 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1947 break;
1948 case IEEE80211_AMPDU_TX_OPERATIONAL:
1949 break;
1950 case IEEE80211_AMPDU_RX_START:
1951 case IEEE80211_AMPDU_RX_STOP:
1952 break;
1953 default:
1954 return -EOPNOTSUPP;
1955 }
1956
1957 return 0;
1958}
1959
77be2c54
EG		 1960static void mac80211_hwsim_flush(struct ieee80211_hw *hw,
1961 struct ieee80211_vif *vif,
1962 u32 queues, bool drop)
a80f7c0b 1963{
7882513b 1964 /* Not implemented, queues only on kernel side */
a80f7c0b
JB		 1965}
1966
e8261171 1967static void hw_scan_work(struct work_struct *work)
69068036 1968{
e8261171
JB		 1969 struct mac80211_hwsim_data *hwsim =
1970 container_of(work, struct mac80211_hwsim_data, hw_scan.work);
1971 struct cfg80211_scan_request *req = hwsim->hw_scan_request;
1972 int dwell, i;
69068036 1973
e8261171
JB		 1974 mutex_lock(&hwsim->mutex);
1975 if (hwsim->scan_chan_idx >= req->n_channels) {
7947d3e0
AS		 1976 struct cfg80211_scan_info info = {
1977 .aborted = false,
1978 };
1979
e8261171 1980 wiphy_debug(hwsim->hw->wiphy, "hw scan complete\n");
7947d3e0 1981 ieee80211_scan_completed(hwsim->hw, &info);
e8261171
JB		 1982 hwsim->hw_scan_request = NULL;
1983 hwsim->hw_scan_vif = NULL;
1984 hwsim->tmp_chan = NULL;
1985 mutex_unlock(&hwsim->mutex);
1986 return;
1987 }
1988
1989 wiphy_debug(hwsim->hw->wiphy, "hw scan %d MHz\n",
1990 req->channels[hwsim->scan_chan_idx]->center_freq);
1991
1992 hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
a8e828de
JB		 1993 if (hwsim->tmp_chan->flags & (IEEE80211_CHAN_NO_IR |
1994 IEEE80211_CHAN_RADAR) ||
e8261171
JB		 1995 !req->n_ssids) {
1996 dwell = 120;
1997 } else {
1998 dwell = 30;
1999 /* send probes */
2000 for (i = 0; i < req->n_ssids; i++) {
2001 struct sk_buff *probe;
12880d16 2002 struct ieee80211_mgmt *mgmt;
e8261171
JB		 2003
2004 probe = ieee80211_probereq_get(hwsim->hw,
339467b9 2005 hwsim->scan_addr,
e8261171
JB		 2006 req->ssids[i].ssid,
2007 req->ssids[i].ssid_len,
b9a9ada1 2008 req->ie_len);
e8261171
JB		 2009 if (!probe)
2010 continue;
b9a9ada1 2011
12880d16
JM		 2012 mgmt = (struct ieee80211_mgmt *) probe->data;
2013 memcpy(mgmt->da, req->bssid, ETH_ALEN);
2014 memcpy(mgmt->bssid, req->bssid, ETH_ALEN);
2015
b9a9ada1
JB		 2016 if (req->ie_len)
2017 memcpy(skb_put(probe, req->ie_len), req->ie,
2018 req->ie_len);
2019
e8261171
JB		 2020 local_bh_disable();
2021 mac80211_hwsim_tx_frame(hwsim->hw, probe,
2022 hwsim->tmp_chan);
2023 local_bh_enable();
2024 }
2025 }
2026 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
2027 msecs_to_jiffies(dwell));
7f813ce1
JB		 2028 hwsim->survey_data[hwsim->scan_chan_idx].channel = hwsim->tmp_chan;
2029 hwsim->survey_data[hwsim->scan_chan_idx].start = jiffies;
2030 hwsim->survey_data[hwsim->scan_chan_idx].end =
2031 jiffies + msecs_to_jiffies(dwell);
e8261171
JB		 2032 hwsim->scan_chan_idx++;
2033 mutex_unlock(&hwsim->mutex);
69068036
JB		 2034}
2035
2036static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
a060bbfe 2037 struct ieee80211_vif *vif,
c56ef672 2038 struct ieee80211_scan_request *hw_req)
69068036 2039{
e8261171 2040 struct mac80211_hwsim_data *hwsim = hw->priv;
c56ef672 2041 struct cfg80211_scan_request *req = &hw_req->req;
69068036 2042
e8261171
JB		 2043 mutex_lock(&hwsim->mutex);
2044 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
2045 mutex_unlock(&hwsim->mutex);
2046 return -EBUSY;
2047 }
2048 hwsim->hw_scan_request = req;
2049 hwsim->hw_scan_vif = vif;
2050 hwsim->scan_chan_idx = 0;
339467b9
JB		 2051 if (req->flags & NL80211_SCAN_FLAG_RANDOM_ADDR)
2052 get_random_mask_addr(hwsim->scan_addr,
2053 hw_req->req.mac_addr,
2054 hw_req->req.mac_addr_mask);
2055 else
2056 memcpy(hwsim->scan_addr, vif->addr, ETH_ALEN);
7f813ce1 2057 memset(hwsim->survey_data, 0, sizeof(hwsim->survey_data));
e8261171 2058 mutex_unlock(&hwsim->mutex);
69068036 2059
e8261171 2060 wiphy_debug(hw->wiphy, "hwsim hw_scan request\n");
69068036 2061
e8261171 2062 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
69068036
JB		 2063
2064 return 0;
2065}
2066
e8261171
JB		 2067static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
2068 struct ieee80211_vif *vif)
2069{
2070 struct mac80211_hwsim_data *hwsim = hw->priv;
7947d3e0
AS		 2071 struct cfg80211_scan_info info = {
2072 .aborted = true,
2073 };
e8261171
JB		 2074
2075 wiphy_debug(hw->wiphy, "hwsim cancel_hw_scan\n");
2076
2077 cancel_delayed_work_sync(&hwsim->hw_scan);
2078
2079 mutex_lock(&hwsim->mutex);
7947d3e0 2080 ieee80211_scan_completed(hwsim->hw, &info);
e8261171
JB		 2081 hwsim->tmp_chan = NULL;
2082 hwsim->hw_scan_request = NULL;
2083 hwsim->hw_scan_vif = NULL;
2084 mutex_unlock(&hwsim->mutex);
2085}
2086
a344d677
JB		 2087static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw,
2088 struct ieee80211_vif *vif,
2089 const u8 *mac_addr)
f74cb0f7
LR		 2090{
2091 struct mac80211_hwsim_data *hwsim = hw->priv;
2092
2093 mutex_lock(&hwsim->mutex);
2094
2095 if (hwsim->scanning) {
2096 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
2097 goto out;
2098 }
2099
2100 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
339467b9
JB		 2101
2102 memcpy(hwsim->scan_addr, mac_addr, ETH_ALEN);
f74cb0f7 2103 hwsim->scanning = true;
7f813ce1 2104 memset(hwsim->survey_data, 0, sizeof(hwsim->survey_data));
f74cb0f7
LR		 2105
2106out:
2107 mutex_unlock(&hwsim->mutex);
2108}
2109
a344d677
JB		 2110static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw,
2111 struct ieee80211_vif *vif)
f74cb0f7
LR		 2112{
2113 struct mac80211_hwsim_data *hwsim = hw->priv;
2114
2115 mutex_lock(&hwsim->mutex);
2116
2117 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
23ff98fc 2118 hwsim->scanning = false;
93803b33 2119 eth_zero_addr(hwsim->scan_addr);
f74cb0f7
LR		 2120
2121 mutex_unlock(&hwsim->mutex);
2122}
2123
661ef475
JB		 2124static void hw_roc_start(struct work_struct *work)
2125{
2126 struct mac80211_hwsim_data *hwsim =
2127 container_of(work, struct mac80211_hwsim_data, roc_start.work);
2128
2129 mutex_lock(&hwsim->mutex);
2130
2131 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC begins\n");
2132 hwsim->tmp_chan = hwsim->roc_chan;
2133 ieee80211_ready_on_channel(hwsim->hw);
2134
2135 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->roc_done,
2136 msecs_to_jiffies(hwsim->roc_duration));
2137
2138 mutex_unlock(&hwsim->mutex);
2139}
2140
e8261171
JB		 2141static void hw_roc_done(struct work_struct *work)
2142{
2143 struct mac80211_hwsim_data *hwsim =
2144 container_of(work, struct mac80211_hwsim_data, roc_done.work);
2145
2146 mutex_lock(&hwsim->mutex);
2147 ieee80211_remain_on_channel_expired(hwsim->hw);
2148 hwsim->tmp_chan = NULL;
2149 mutex_unlock(&hwsim->mutex);
2150
2151 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC expired\n");
2152}
2153
2154static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
49884568 2155 struct ieee80211_vif *vif,
e8261171 2156 struct ieee80211_channel *chan,
d339d5ca
IP		 2157 int duration,
2158 enum ieee80211_roc_type type)
e8261171
JB		 2159{
2160 struct mac80211_hwsim_data *hwsim = hw->priv;
2161
2162 mutex_lock(&hwsim->mutex);
2163 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
2164 mutex_unlock(&hwsim->mutex);
2165 return -EBUSY;
2166 }
2167
661ef475
JB		 2168 hwsim->roc_chan = chan;
2169 hwsim->roc_duration = duration;
e8261171
JB		 2170 mutex_unlock(&hwsim->mutex);
2171
2172 wiphy_debug(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
2173 chan->center_freq, duration);
661ef475 2174 ieee80211_queue_delayed_work(hw, &hwsim->roc_start, HZ/50);
e8261171 2175
e8261171
JB		 2176 return 0;
2177}
2178
2179static int mac80211_hwsim_croc(struct ieee80211_hw *hw)
2180{
2181 struct mac80211_hwsim_data *hwsim = hw->priv;
2182
661ef475 2183 cancel_delayed_work_sync(&hwsim->roc_start);
e8261171
JB		 2184 cancel_delayed_work_sync(&hwsim->roc_done);
2185
2186 mutex_lock(&hwsim->mutex);
2187 hwsim->tmp_chan = NULL;
2188 mutex_unlock(&hwsim->mutex);
2189
2190 wiphy_debug(hw->wiphy, "hwsim ROC canceled\n");
2191
2192 return 0;
2193}
2194
2195static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
2196 struct ieee80211_chanctx_conf *ctx)
2197{
2198 hwsim_set_chanctx_magic(ctx);
4bf88530
JB		 2199 wiphy_debug(hw->wiphy,
2200 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2201 ctx->def.chan->center_freq, ctx->def.width,
2202 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 2203 return 0;
2204}
2205
2206static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
2207 struct ieee80211_chanctx_conf *ctx)
2208{
4bf88530
JB		 2209 wiphy_debug(hw->wiphy,
2210 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2211 ctx->def.chan->center_freq, ctx->def.width,
2212 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 2213 hwsim_check_chanctx_magic(ctx);
2214 hwsim_clear_chanctx_magic(ctx);
2215}
2216
2217static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
2218 struct ieee80211_chanctx_conf *ctx,
2219 u32 changed)
2220{
2221 hwsim_check_chanctx_magic(ctx);
4bf88530
JB		 2222 wiphy_debug(hw->wiphy,
2223 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2224 ctx->def.chan->center_freq, ctx->def.width,
2225 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 2226}
2227
2228static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
2229 struct ieee80211_vif *vif,
2230 struct ieee80211_chanctx_conf *ctx)
2231{
2232 hwsim_check_magic(vif);
2233 hwsim_check_chanctx_magic(ctx);
2234
2235 return 0;
2236}
2237
2238static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
2239 struct ieee80211_vif *vif,
2240 struct ieee80211_chanctx_conf *ctx)
2241{
2242 hwsim_check_magic(vif);
2243 hwsim_check_chanctx_magic(ctx);
2244}
2245
2155c3f8
BG		 2246static const char mac80211_hwsim_gstrings_stats[][ETH_GSTRING_LEN] = {
2247 "tx_pkts_nic",
2248 "tx_bytes_nic",
2249 "rx_pkts_nic",
2250 "rx_bytes_nic",
2251 "d_tx_dropped",
2252 "d_tx_failed",
2253 "d_ps_mode",
2254 "d_group",
2155c3f8
BG		 2255};
2256
2257#define MAC80211_HWSIM_SSTATS_LEN ARRAY_SIZE(mac80211_hwsim_gstrings_stats)
2258
2259static void mac80211_hwsim_get_et_strings(struct ieee80211_hw *hw,
2260 struct ieee80211_vif *vif,
2261 u32 sset, u8 *data)
2262{
2263 if (sset == ETH_SS_STATS)
2264 memcpy(data, *mac80211_hwsim_gstrings_stats,
2265 sizeof(mac80211_hwsim_gstrings_stats));
2266}
2267
2268static int mac80211_hwsim_get_et_sset_count(struct ieee80211_hw *hw,
2269 struct ieee80211_vif *vif, int sset)
2270{
2271 if (sset == ETH_SS_STATS)
2272 return MAC80211_HWSIM_SSTATS_LEN;
2273 return 0;
2274}
2275
2276static void mac80211_hwsim_get_et_stats(struct ieee80211_hw *hw,
2277 struct ieee80211_vif *vif,
2278 struct ethtool_stats *stats, u64 *data)
2279{
2280 struct mac80211_hwsim_data *ar = hw->priv;
2281 int i = 0;
2282
2283 data[i++] = ar->tx_pkts;
2284 data[i++] = ar->tx_bytes;
2285 data[i++] = ar->rx_pkts;
2286 data[i++] = ar->rx_bytes;
2287 data[i++] = ar->tx_dropped;
2288 data[i++] = ar->tx_failed;
2289 data[i++] = ar->ps;
2290 data[i++] = ar->group;
2155c3f8
BG		 2291
2292 WARN_ON(i != MAC80211_HWSIM_SSTATS_LEN);
2293}
2294
246ad56e
JB		 2295#define HWSIM_COMMON_OPS \
2296 .tx = mac80211_hwsim_tx, \
2297 .start = mac80211_hwsim_start, \
2298 .stop = mac80211_hwsim_stop, \
2299 .add_interface = mac80211_hwsim_add_interface, \
2300 .change_interface = mac80211_hwsim_change_interface, \
2301 .remove_interface = mac80211_hwsim_remove_interface, \
2302 .config = mac80211_hwsim_config, \
2303 .configure_filter = mac80211_hwsim_configure_filter, \
2304 .bss_info_changed = mac80211_hwsim_bss_info_changed, \
2305 .sta_add = mac80211_hwsim_sta_add, \
2306 .sta_remove = mac80211_hwsim_sta_remove, \
2307 .sta_notify = mac80211_hwsim_sta_notify, \
2308 .set_tim = mac80211_hwsim_set_tim, \
2309 .conf_tx = mac80211_hwsim_conf_tx, \
2310 .get_survey = mac80211_hwsim_get_survey, \
2311 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd) \
2312 .ampdu_action = mac80211_hwsim_ampdu_action, \
2313 .flush = mac80211_hwsim_flush, \
2314 .get_tsf = mac80211_hwsim_get_tsf, \
2315 .set_tsf = mac80211_hwsim_set_tsf, \
2316 .get_et_sset_count = mac80211_hwsim_get_et_sset_count, \
2317 .get_et_stats = mac80211_hwsim_get_et_stats, \
2318 .get_et_strings = mac80211_hwsim_get_et_strings,
2319
38ed5048 2320static const struct ieee80211_ops mac80211_hwsim_ops = {
246ad56e 2321 HWSIM_COMMON_OPS
f74cb0f7
LR		 2322 .sw_scan_start = mac80211_hwsim_sw_scan,
2323 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
acc1e7a3
JM		 2324};
2325
246ad56e
JB		 2326static const struct ieee80211_ops mac80211_hwsim_mchan_ops = {
2327 HWSIM_COMMON_OPS
2328 .hw_scan = mac80211_hwsim_hw_scan,
2329 .cancel_hw_scan = mac80211_hwsim_cancel_hw_scan,
2330 .sw_scan_start = NULL,
2331 .sw_scan_complete = NULL,
2332 .remain_on_channel = mac80211_hwsim_roc,
2333 .cancel_remain_on_channel = mac80211_hwsim_croc,
2334 .add_chanctx = mac80211_hwsim_add_chanctx,
2335 .remove_chanctx = mac80211_hwsim_remove_chanctx,
2336 .change_chanctx = mac80211_hwsim_change_chanctx,
2337 .assign_vif_chanctx = mac80211_hwsim_assign_vif_chanctx,
2338 .unassign_vif_chanctx = mac80211_hwsim_unassign_vif_chanctx,
2339};
acc1e7a3 2340
62759361
JR		 2341struct hwsim_new_radio_params {
2342 unsigned int channels;
2343 const char *reg_alpha2;
2344 const struct ieee80211_regdomain *regd;
2345 bool reg_strict;
2346 bool p2p_device;
2347 bool use_chanctx;
2348 bool destroy_on_close;
2349 const char *hwname;
2350 bool no_vif;
2351};
2352
2353static void hwsim_mcast_config_msg(struct sk_buff *mcast_skb,
2354 struct genl_info *info)
2355{
2356 if (info)
92c14d9b
JB		 2357 genl_notify(&hwsim_genl_family, mcast_skb, info,
2358 HWSIM_MCGRP_CONFIG, GFP_KERNEL);
62759361
JR		 2359 else
2360 genlmsg_multicast(&hwsim_genl_family, mcast_skb, 0,
2361 HWSIM_MCGRP_CONFIG, GFP_KERNEL);
2362}
2363
c449981c
PF		 2364static int append_radio_msg(struct sk_buff *skb, int id,
2365 struct hwsim_new_radio_params *param)
62759361 2366{
62759361
JR		 2367 int ret;
2368
62759361
JR		 2369 ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
2370 if (ret < 0)
c449981c 2371 return ret;
62759361
JR		 2372
2373 if (param->channels) {
2374 ret = nla_put_u32(skb, HWSIM_ATTR_CHANNELS, param->channels);
2375 if (ret < 0)
c449981c 2376 return ret;
62759361
JR		 2377 }
2378
2379 if (param->reg_alpha2) {
2380 ret = nla_put(skb, HWSIM_ATTR_REG_HINT_ALPHA2, 2,
2381 param->reg_alpha2);
2382 if (ret < 0)
c449981c 2383 return ret;
62759361
JR		 2384 }
2385
2386 if (param->regd) {
2387 int i;
2388
5875755c
JB		 2389 for (i = 0; i < ARRAY_SIZE(hwsim_world_regdom_custom); i++) {
2390 if (hwsim_world_regdom_custom[i] != param->regd)
2391 continue;
62759361 2392
62759361
JR		 2393 ret = nla_put_u32(skb, HWSIM_ATTR_REG_CUSTOM_REG, i);
2394 if (ret < 0)
c449981c 2395 return ret;
5875755c 2396 break;
62759361
JR		 2397 }
2398 }
2399
2400 if (param->reg_strict) {
2401 ret = nla_put_flag(skb, HWSIM_ATTR_REG_STRICT_REG);
2402 if (ret < 0)
c449981c 2403 return ret;
62759361
JR		 2404 }
2405
2406 if (param->p2p_device) {
2407 ret = nla_put_flag(skb, HWSIM_ATTR_SUPPORT_P2P_DEVICE);
2408 if (ret < 0)
c449981c 2409 return ret;
62759361
JR		 2410 }
2411
2412 if (param->use_chanctx) {
2413 ret = nla_put_flag(skb, HWSIM_ATTR_USE_CHANCTX);
2414 if (ret < 0)
c449981c 2415 return ret;
62759361
JR		 2416 }
2417
2418 if (param->hwname) {
2419 ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME,
2420 strlen(param->hwname), param->hwname);
2421 if (ret < 0)
c449981c 2422 return ret;
62759361
JR		 2423 }
2424
c449981c 2425 return 0;
62759361
JR		 2426}
2427
c449981c 2428static void hwsim_mcast_new_radio(int id, struct genl_info *info,
62759361
JR		 2429 struct hwsim_new_radio_params *param)
2430{
2431 struct sk_buff *mcast_skb;
c449981c 2432 void *data;
62759361 2433
c449981c 2434 mcast_skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
62759361
JR		 2435 if (!mcast_skb)
2436 return;
2437
c449981c
PF		 2438 data = genlmsg_put(mcast_skb, 0, 0, &hwsim_genl_family, 0,
2439 HWSIM_CMD_NEW_RADIO);
2440 if (!data)
2441 goto out_err;
2442
2443 if (append_radio_msg(mcast_skb, id, param) < 0)
2444 goto out_err;
2445
2446 genlmsg_end(mcast_skb, data);
2447
62759361 2448 hwsim_mcast_config_msg(mcast_skb, info);
c449981c
PF		 2449 return;
2450
2451out_err:
2452 genlmsg_cancel(mcast_skb, data);
2453 nlmsg_free(mcast_skb);
62759361
JR		 2454}
2455
2456static int mac80211_hwsim_new_radio(struct genl_info *info,
2457 struct hwsim_new_radio_params *param)
acc1e7a3 2458{
de0421d5
JB		 2459 int err;
2460 u8 addr[ETH_ALEN];
e4afb603 2461 struct mac80211_hwsim_data *data;
de0421d5 2462 struct ieee80211_hw *hw;
57fbcce3 2463 enum nl80211_band band;
de0421d5 2464 const struct ieee80211_ops *ops = &mac80211_hwsim_ops;
100cb9ff 2465 struct net *net;
de0421d5 2466 int idx;
0e057d73 2467
62759361 2468 if (WARN_ON(param->channels > 1 && !param->use_chanctx))
361c3e04
LC		 2469 return -EINVAL;
2470
0e057d73 2471 spin_lock_bh(&hwsim_radio_lock);
de0421d5 2472 idx = hwsim_radio_idx++;
0e057d73
JB		 2473 spin_unlock_bh(&hwsim_radio_lock);
2474
62759361 2475 if (param->use_chanctx)
de0421d5 2476 ops = &mac80211_hwsim_mchan_ops;
62759361 2477 hw = ieee80211_alloc_hw_nm(sizeof(*data), ops, param->hwname);
de0421d5
JB		 2478 if (!hw) {
2479 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw failed\n");
2480 err = -ENOMEM;
2481 goto failed;
2482 }
100cb9ff 2483
f7d3b4f5
AZ		 2484 /* ieee80211_alloc_hw_nm may have used a default name */
2485 param->hwname = wiphy_name(hw->wiphy);
2486
100cb9ff
MW		 2487 if (info)
2488 net = genl_info_net(info);
2489 else
2490 net = &init_net;
2491 wiphy_net_set(hw->wiphy, net);
2492
de0421d5
JB		 2493 data = hw->priv;
2494 data->hw = hw;
acc1e7a3 2495
de0421d5
JB		 2496 data->dev = device_create(hwsim_class, NULL, 0, hw, "hwsim%d", idx);
2497 if (IS_ERR(data->dev)) {
2498 printk(KERN_DEBUG
2499 "mac80211_hwsim: device_create failed (%ld)\n",
2500 PTR_ERR(data->dev));
2501 err = -ENOMEM;
2502 goto failed_drvdata;
2503 }
2504 data->dev->driver = &mac80211_hwsim_driver.driver;
2505 err = device_bind_driver(data->dev);
2506 if (err != 0) {
2507 printk(KERN_DEBUG "mac80211_hwsim: device_bind_driver failed (%d)\n",
2508 err);
805dbe17 2509 goto failed_bind;
acc1e7a3 2510 }
acc1e7a3 2511
de0421d5 2512 skb_queue_head_init(&data->pending);
acc1e7a3 2513
de0421d5 2514 SET_IEEE80211_DEV(hw, data->dev);
93803b33 2515 eth_zero_addr(addr);
de0421d5
JB		 2516 addr[0] = 0x02;
2517 addr[3] = idx >> 8;
2518 addr[4] = idx;
2519 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
2520 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
2521 data->addresses[1].addr[0] |= 0x40;
2522 hw->wiphy->n_addresses = 2;
2523 hw->wiphy->addresses = data->addresses;
fc6971d4 2524
62759361
JR		 2525 data->channels = param->channels;
2526 data->use_chanctx = param->use_chanctx;
bc791098 2527 data->idx = idx;
62759361
JR		 2528 data->destroy_on_close = param->destroy_on_close;
2529 if (info)
2530 data->portid = info->snd_portid;
fc6971d4 2531
361c3e04 2532 if (data->use_chanctx) {
de0421d5
JB		 2533 hw->wiphy->max_scan_ssids = 255;
2534 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
2535 hw->wiphy->max_remain_on_channel_duration = 1000;
de0421d5 2536 hw->wiphy->iface_combinations = &data->if_combination;
62759361 2537 if (param->p2p_device)
8c66a3d9
JB		 2538 data->if_combination = hwsim_if_comb_p2p_dev[0];
2539 else
2540 data->if_combination = hwsim_if_comb[0];
f7736f50
IP		 2541 hw->wiphy->n_iface_combinations = 1;
2542 /* For channels > 1 DFS is not allowed */
2543 data->if_combination.radar_detect_widths = 0;
b59ec8dd 2544 data->if_combination.num_different_channels = data->channels;
62759361 2545 } else if (param->p2p_device) {
8c66a3d9
JB		 2546 hw->wiphy->iface_combinations = hwsim_if_comb_p2p_dev;
2547 hw->wiphy->n_iface_combinations =
2548 ARRAY_SIZE(hwsim_if_comb_p2p_dev);
de0421d5
JB		 2549 } else {
2550 hw->wiphy->iface_combinations = hwsim_if_comb;
2551 hw->wiphy->n_iface_combinations = ARRAY_SIZE(hwsim_if_comb);
2552 }
acc1e7a3 2553
661ef475 2554 INIT_DELAYED_WORK(&data->roc_start, hw_roc_start);
de0421d5
JB		 2555 INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
2556 INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
7882513b 2557
de0421d5
JB		 2558 hw->queues = 5;
2559 hw->offchannel_tx_hw_queue = 4;
2560 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2561 BIT(NL80211_IFTYPE_AP) |
2562 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2563 BIT(NL80211_IFTYPE_P2P_GO) |
2564 BIT(NL80211_IFTYPE_ADHOC) |
8c66a3d9
JB		 2565 BIT(NL80211_IFTYPE_MESH_POINT);
2566
62759361 2567 if (param->p2p_device)
8c66a3d9 2568 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_DEVICE);
fc6971d4 2569
30686bf7
JB		 2570 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
2571 ieee80211_hw_set(hw, CHANCTX_STA_CSA);
2572 ieee80211_hw_set(hw, SUPPORTS_HT_CCK_RATES);
2573 ieee80211_hw_set(hw, QUEUE_CONTROL);
2574 ieee80211_hw_set(hw, WANT_MONITOR_VIF);
2575 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
2576 ieee80211_hw_set(hw, MFP_CAPABLE);
2577 ieee80211_hw_set(hw, SIGNAL_DBM);
33c2f538 2578 ieee80211_hw_set(hw, TDLS_WIDER_BW);
de0421d5 2579 if (rctbl)
30686bf7 2580 ieee80211_hw_set(hw, SUPPORTS_RC_TABLE);
fc6971d4 2581
de0421d5
JB		 2582 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2583 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
0037db63
AO		 2584 WIPHY_FLAG_AP_UAPSD |
2585 WIPHY_FLAG_HAS_CHANNEL_SWITCH;
0d8614b4
EP		 2586 hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR |
2587 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
2588 NL80211_FEATURE_STATIC_SMPS |
339467b9
JB		 2589 NL80211_FEATURE_DYNAMIC_SMPS |
2590 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
00eeccc4 2591 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS);
fc6971d4 2592
de0421d5
JB		 2593 /* ask mac80211 to reserve space for magic */
2594 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
2595 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
2596 hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
fc6971d4 2597
de0421d5
JB		 2598 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
2599 sizeof(hwsim_channels_2ghz));
2600 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
2601 sizeof(hwsim_channels_5ghz));
2602 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
7882513b 2603
57fbcce3 2604 for (band = NL80211_BAND_2GHZ; band < NUM_NL80211_BANDS; band++) {
de0421d5
JB		 2605 struct ieee80211_supported_band *sband = &data->bands[band];
2606 switch (band) {
57fbcce3 2607 case NL80211_BAND_2GHZ:
de0421d5
JB		 2608 sband->channels = data->channels_2ghz;
2609 sband->n_channels = ARRAY_SIZE(hwsim_channels_2ghz);
2610 sband->bitrates = data->rates;
2611 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
2612 break;
57fbcce3 2613 case NL80211_BAND_5GHZ:
de0421d5
JB		 2614 sband->channels = data->channels_5ghz;
2615 sband->n_channels = ARRAY_SIZE(hwsim_channels_5ghz);
2616 sband->bitrates = data->rates + 4;
2617 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
f33f8483
IP		 2618
2619 sband->vht_cap.vht_supported = true;
2620 sband->vht_cap.cap =
2621 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
2622 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
2623 IEEE80211_VHT_CAP_RXLDPC |
2624 IEEE80211_VHT_CAP_SHORT_GI_80 |
2625 IEEE80211_VHT_CAP_SHORT_GI_160 |
2626 IEEE80211_VHT_CAP_TXSTBC |
2627 IEEE80211_VHT_CAP_RXSTBC_1 |
2628 IEEE80211_VHT_CAP_RXSTBC_2 |
2629 IEEE80211_VHT_CAP_RXSTBC_3 |
2630 IEEE80211_VHT_CAP_RXSTBC_4 |
2631 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
2632 sband->vht_cap.vht_mcs.rx_mcs_map =
8aca9b29
IP		 2633 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
2634 IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 |
f33f8483 2635 IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
8aca9b29
IP		 2636 IEEE80211_VHT_MCS_SUPPORT_0_9 << 6 |
2637 IEEE80211_VHT_MCS_SUPPORT_0_9 << 8 |
f33f8483
IP		 2638 IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
2639 IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
8aca9b29 2640 IEEE80211_VHT_MCS_SUPPORT_0_9 << 14);
f33f8483
IP		 2641 sband->vht_cap.vht_mcs.tx_mcs_map =
2642 sband->vht_cap.vht_mcs.rx_mcs_map;
de0421d5
JB		 2643 break;
2644 default:
2645 continue;
2646 }
acc1e7a3 2647
de0421d5
JB		 2648 sband->ht_cap.ht_supported = true;
2649 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
2650 IEEE80211_HT_CAP_GRN_FLD |
e49786db 2651 IEEE80211_HT_CAP_SGI_20 |
de0421d5
JB		 2652 IEEE80211_HT_CAP_SGI_40 |
2653 IEEE80211_HT_CAP_DSSSCCK40;
2654 sband->ht_cap.ampdu_factor = 0x3;
2655 sband->ht_cap.ampdu_density = 0x6;
2656 memset(&sband->ht_cap.mcs, 0,
2657 sizeof(sband->ht_cap.mcs));
2658 sband->ht_cap.mcs.rx_mask[0] = 0xff;
2659 sband->ht_cap.mcs.rx_mask[1] = 0xff;
2660 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
fc6971d4 2661
de0421d5 2662 hw->wiphy->bands[band] = sband;
de0421d5 2663 }
acc1e7a3 2664
de0421d5
JB		 2665 /* By default all radios belong to the first group */
2666 data->group = 1;
2667 mutex_init(&data->mutex);
fc6971d4 2668
100cb9ff
MW		 2669 data->netgroup = hwsim_net_get_netgroup(net);
2670
de0421d5
JB		 2671 /* Enable frame retransmissions for lossy channels */
2672 hw->max_rates = 4;
2673 hw->max_rate_tries = 11;
fc6971d4 2674
d5d011b4
JM		 2675 hw->wiphy->vendor_commands = mac80211_hwsim_vendor_commands;
2676 hw->wiphy->n_vendor_commands =
2677 ARRAY_SIZE(mac80211_hwsim_vendor_commands);
2678 hw->wiphy->vendor_events = mac80211_hwsim_vendor_events;
2679 hw->wiphy->n_vendor_events = ARRAY_SIZE(mac80211_hwsim_vendor_events);
2680
62759361 2681 if (param->reg_strict)
26b0e411 2682 hw->wiphy->regulatory_flags |= REGULATORY_STRICT_REG;
62759361 2683 if (param->regd) {
93d638d4 2684 data->regd = param->regd;
26b0e411 2685 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
62759361 2686 wiphy_apply_custom_regulatory(hw->wiphy, param->regd);
26b0e411
JB		 2687 /* give the regulatory workqueue a chance to run */
2688 schedule_timeout_interruptible(1);
2689 }
fc6971d4 2690
62759361 2691 if (param->no_vif)
30686bf7 2692 ieee80211_hw_set(hw, NO_AUTO_VIF);
9a0cb89a 2693
ae44b502
AZ		 2694 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);
2695
de0421d5
JB		 2696 err = ieee80211_register_hw(hw);
2697 if (err < 0) {
2698 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_register_hw failed (%d)\n",
2699 err);
2700 goto failed_hw;
2701 }
fc6971d4 2702
de0421d5 2703 wiphy_debug(hw->wiphy, "hwaddr %pM registered\n", hw->wiphy->perm_addr);
fc6971d4 2704
93d638d4
PF		 2705 if (param->reg_alpha2) {
2706 data->alpha2[0] = param->reg_alpha2[0];
2707 data->alpha2[1] = param->reg_alpha2[1];
62759361 2708 regulatory_hint(hw->wiphy, param->reg_alpha2);
93d638d4 2709 }
7882513b 2710
de0421d5
JB		 2711 data->debugfs = debugfs_create_dir("hwsim", hw->wiphy->debugfsdir);
2712 debugfs_create_file("ps", 0666, data->debugfs, data, &hwsim_fops_ps);
2713 debugfs_create_file("group", 0666, data->debugfs, data,
2714 &hwsim_fops_group);
361c3e04 2715 if (!data->use_chanctx)
de0421d5
JB		 2716 debugfs_create_file("dfs_simulate_radar", 0222,
2717 data->debugfs,
2718 data, &hwsim_simulate_radar);
fc6971d4 2719
de0421d5
JB		 2720 tasklet_hrtimer_init(&data->beacon_timer,
2721 mac80211_hwsim_beacon,
8fbcfeb8 2722 CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
fc6971d4 2723
de0421d5
JB		 2724 spin_lock_bh(&hwsim_radio_lock);
2725 list_add_tail(&data->list, &hwsim_radios);
2726 spin_unlock_bh(&hwsim_radio_lock);
fc6971d4 2727
62759361 2728 if (idx > 0)
c449981c 2729 hwsim_mcast_new_radio(idx, info, param);
62759361 2730
bc791098 2731 return idx;
fc6971d4 2732
de0421d5 2733failed_hw:
805dbe17
JM		 2734 device_release_driver(data->dev);
2735failed_bind:
de0421d5
JB		 2736 device_unregister(data->dev);
2737failed_drvdata:
2738 ieee80211_free_hw(hw);
2739failed:
2740 return err;
fc6971d4
JM		 2741}
2742
579a05f2
JR		 2743static void hwsim_mcast_del_radio(int id, const char *hwname,
2744 struct genl_info *info)
fc6971d4 2745{
579a05f2
JR		 2746 struct sk_buff *skb;
2747 void *data;
2748 int ret;
2749
2750 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
2751 if (!skb)
2752 return;
2753
2754 data = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
2755 HWSIM_CMD_DEL_RADIO);
2756 if (!data)
2757 goto error;
2758
2759 ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
2760 if (ret < 0)
2761 goto error;
2762
b9995f83
JR		 2763 ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME, strlen(hwname),
2764 hwname);
2765 if (ret < 0)
2766 goto error;
579a05f2
JR		 2767
2768 genlmsg_end(skb, data);
2769
2770 hwsim_mcast_config_msg(skb, info);
2771
2772 return;
2773
2774error:
2775 nlmsg_free(skb);
2776}
2777
2778static void mac80211_hwsim_del_radio(struct mac80211_hwsim_data *data,
2779 const char *hwname,
2780 struct genl_info *info)
2781{
2782 hwsim_mcast_del_radio(data->idx, hwname, info);
de0421d5
JB		 2783 debugfs_remove_recursive(data->debugfs);
2784 ieee80211_unregister_hw(data->hw);
2785 device_release_driver(data->dev);
2786 device_unregister(data->dev);
2787 ieee80211_free_hw(data->hw);
fc6971d4
JM		 2788}
2789
93d638d4
PF		 2790static int mac80211_hwsim_get_radio(struct sk_buff *skb,
2791 struct mac80211_hwsim_data *data,
2792 u32 portid, u32 seq,
2793 struct netlink_callback *cb, int flags)
2794{
2795 void *hdr;
2796 struct hwsim_new_radio_params param = { };
2797 int res = -EMSGSIZE;
2798
2799 hdr = genlmsg_put(skb, portid, seq, &hwsim_genl_family, flags,
2800 HWSIM_CMD_GET_RADIO);
2801 if (!hdr)
2802 return -EMSGSIZE;
2803
2804 if (cb)
2805 genl_dump_check_consistent(cb, hdr, &hwsim_genl_family);
2806
b0ad5e8b
PF		 2807 if (data->alpha2[0] && data->alpha2[1])
2808 param.reg_alpha2 = data->alpha2;
2809
93d638d4
PF		 2810 param.reg_strict = !!(data->hw->wiphy->regulatory_flags &
2811 REGULATORY_STRICT_REG);
2812 param.p2p_device = !!(data->hw->wiphy->interface_modes &
2813 BIT(NL80211_IFTYPE_P2P_DEVICE));
2814 param.use_chanctx = data->use_chanctx;
2815 param.regd = data->regd;
2816 param.channels = data->channels;
2817 param.hwname = wiphy_name(data->hw->wiphy);
2818
2819 res = append_radio_msg(skb, data->idx, &param);
2820 if (res < 0)
2821 goto out_err;
2822
053c095a
JB		 2823 genlmsg_end(skb, hdr);
2824 return 0;
93d638d4
PF		 2825
2826out_err:
2827 genlmsg_cancel(skb, hdr);
2828 return res;
2829}
2830
de0421d5 2831static void mac80211_hwsim_free(void)
fc6971d4 2832{
de0421d5 2833 struct mac80211_hwsim_data *data;
fc6971d4 2834
de0421d5
JB		 2835 spin_lock_bh(&hwsim_radio_lock);
2836 while ((data = list_first_entry_or_null(&hwsim_radios,
2837 struct mac80211_hwsim_data,
2838 list))) {
2839 list_del(&data->list);
2840 spin_unlock_bh(&hwsim_radio_lock);
b9995f83
JR		 2841 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
2842 NULL);
de0421d5 2843 spin_lock_bh(&hwsim_radio_lock);
fc6971d4 2844 }
de0421d5
JB		 2845 spin_unlock_bh(&hwsim_radio_lock);
2846 class_destroy(hwsim_class);
bba05e3d
JD		 2847}
2848
de0421d5
JB		 2849static const struct net_device_ops hwsim_netdev_ops = {
2850 .ndo_start_xmit = hwsim_mon_xmit,
de0421d5
JB		 2851 .ndo_set_mac_address = eth_mac_addr,
2852 .ndo_validate_addr = eth_validate_addr,
2853};
73606d00 2854
de0421d5 2855static void hwsim_mon_setup(struct net_device *dev)
73606d00 2856{
de0421d5
JB		 2857 dev->netdev_ops = &hwsim_netdev_ops;
2858 dev->destructor = free_netdev;
2859 ether_setup(dev);
3db6da1f 2860 dev->priv_flags |= IFF_NO_QUEUE;
de0421d5 2861 dev->type = ARPHRD_IEEE80211_RADIOTAP;
93803b33 2862 eth_zero_addr(dev->dev_addr);
de0421d5 2863 dev->dev_addr[0] = 0x12;
73606d00
DW		 2864}
2865
9ddd12af 2866static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(const u8 *addr)
7882513b
JL		 2867{
2868 struct mac80211_hwsim_data *data;
2869 bool _found = false;
2870
2871 spin_lock_bh(&hwsim_radio_lock);
2872 list_for_each_entry(data, &hwsim_radios, list) {
354210f8 2873 if (memcmp(data->addresses[1].addr, addr, ETH_ALEN) == 0) {
7882513b
JL		 2874 _found = true;
2875 break;
2876 }
2877 }
2878 spin_unlock_bh(&hwsim_radio_lock);
2879
2880 if (!_found)
2881 return NULL;
2882
2883 return data;
2884}
2885
f21e4d8e
MW		 2886static void hwsim_register_wmediumd(struct net *net, u32 portid)
2887{
2888 struct mac80211_hwsim_data *data;
2889
2890 hwsim_net_set_wmediumd(net, portid);
2891
2892 spin_lock_bh(&hwsim_radio_lock);
2893 list_for_each_entry(data, &hwsim_radios, list) {
2894 if (data->netgroup == hwsim_net_get_netgroup(net))
2895 data->wmediumd = portid;
2896 }
2897 spin_unlock_bh(&hwsim_radio_lock);
2898}
2899
7882513b
JL		 2900static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
2901 struct genl_info *info)
2902{
2903
2904 struct ieee80211_hdr *hdr;
2905 struct mac80211_hwsim_data *data2;
2906 struct ieee80211_tx_info *txi;
2907 struct hwsim_tx_rate *tx_attempts;
959eb2fd 2908 u64 ret_skb_cookie;
7882513b 2909 struct sk_buff *skb, *tmp;
9ddd12af 2910 const u8 *src;
7882513b 2911 unsigned int hwsim_flags;
7882513b
JL		 2912 int i;
2913 bool found = false;
2914
2915 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
9ddd12af
JB		 2916 !info->attrs[HWSIM_ATTR_FLAGS] ||
2917 !info->attrs[HWSIM_ATTR_COOKIE] ||
62397da5 2918 !info->attrs[HWSIM_ATTR_SIGNAL] ||
9ddd12af 2919 !info->attrs[HWSIM_ATTR_TX_INFO])
7882513b
JL		 2920 goto out;
2921
9ddd12af 2922 src = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
7882513b 2923 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
959eb2fd 2924 ret_skb_cookie = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
7882513b
JL		 2925
2926 data2 = get_hwsim_data_ref_from_addr(src);
9ddd12af 2927 if (!data2)
7882513b
JL		 2928 goto out;
2929
f21e4d8e
MW		 2930 if (hwsim_net_get_netgroup(genl_info_net(info)) != data2->netgroup)
2931 goto out;
2932
2933 if (info->snd_portid != data2->wmediumd)
2934 goto out;
2935
7882513b
JL		 2936 /* look for the skb matching the cookie passed back from user */
2937 skb_queue_walk_safe(&data2->pending, skb, tmp) {
959eb2fd
JB		 2938 u64 skb_cookie;
2939
2940 txi = IEEE80211_SKB_CB(skb);
2941 skb_cookie = (u64)(uintptr_t)txi->rate_driver_data[0];
2942
2943 if (skb_cookie == ret_skb_cookie) {
7882513b
JL		 2944 skb_unlink(skb, &data2->pending);
2945 found = true;
2946 break;
2947 }
2948 }
2949
2950 /* not found */
2951 if (!found)
2952 goto out;
2953
2954 /* Tx info received because the frame was broadcasted on user space,
2955 so we get all the necessary info: tx attempts and skb control buff */
2956
2957 tx_attempts = (struct hwsim_tx_rate *)nla_data(
2958 info->attrs[HWSIM_ATTR_TX_INFO]);
2959
2960 /* now send back TX status */
2961 txi = IEEE80211_SKB_CB(skb);
2962
7882513b
JL		 2963 ieee80211_tx_info_clear_status(txi);
2964
2965 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
2966 txi->status.rates[i].idx = tx_attempts[i].idx;
2967 txi->status.rates[i].count = tx_attempts[i].count;
2968 /*txi->status.rates[i].flags = 0;*/
2969 }
2970
2971 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
2972
2973 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
2974 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
2975 if (skb->len >= 16) {
2976 hdr = (struct ieee80211_hdr *) skb->data;
c0e30763 2977 mac80211_hwsim_monitor_ack(data2->channel,
e8261171 2978 hdr->addr2);
7882513b 2979 }
06cf5c4c 2980 txi->flags |= IEEE80211_TX_STAT_ACK;
7882513b
JL		 2981 }
2982 ieee80211_tx_status_irqsafe(data2->hw, skb);
2983 return 0;
2984out:
2985 return -EINVAL;
2986
2987}
2988
2989static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
2990 struct genl_info *info)
2991{
e8261171 2992 struct mac80211_hwsim_data *data2;
7882513b 2993 struct ieee80211_rx_status rx_status;
9ddd12af 2994 const u8 *dst;
7882513b 2995 int frame_data_len;
9ddd12af 2996 void *frame_data;
7882513b
JL		 2997 struct sk_buff *skb = NULL;
2998
2999 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
e8261171
JB		 3000 !info->attrs[HWSIM_ATTR_FRAME] ||
3001 !info->attrs[HWSIM_ATTR_RX_RATE] ||
3002 !info->attrs[HWSIM_ATTR_SIGNAL])
7882513b
JL		 3003 goto out;
3004
9ddd12af 3005 dst = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
7882513b 3006 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
9ddd12af 3007 frame_data = (void *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
7882513b
JL		 3008
3009 /* Allocate new skb here */
3010 skb = alloc_skb(frame_data_len, GFP_KERNEL);
3011 if (skb == NULL)
3012 goto err;
3013
9ddd12af 3014 if (frame_data_len > IEEE80211_MAX_DATA_LEN)
7882513b
JL		 3015 goto err;
3016
9ddd12af
JB		 3017 /* Copy the data */
3018 memcpy(skb_put(skb, frame_data_len), frame_data, frame_data_len);
7882513b 3019
9ddd12af
JB		 3020 data2 = get_hwsim_data_ref_from_addr(dst);
3021 if (!data2)
7882513b
JL		 3022 goto out;
3023
f21e4d8e
MW		 3024 if (hwsim_net_get_netgroup(genl_info_net(info)) != data2->netgroup)
3025 goto out;
3026
3027 if (info->snd_portid != data2->wmediumd)
3028 goto out;
3029
7882513b
JL		 3030 /* check if radio is configured properly */
3031
e8261171 3032 if (data2->idle || !data2->started)
7882513b
JL		 3033 goto out;
3034
9ddd12af 3035 /* A frame is received from user space */
7882513b 3036 memset(&rx_status, 0, sizeof(rx_status));
641cf2a5
AW		 3037 if (info->attrs[HWSIM_ATTR_FREQ]) {
3038 /* throw away off-channel packets, but allow both the temporary
3039 * ("hw" scan/remain-on-channel) and regular channel, since the
3040 * internal datapath also allows this
3041 */
3042 mutex_lock(&data2->mutex);
3043 rx_status.freq = nla_get_u32(info->attrs[HWSIM_ATTR_FREQ]);
3044
3045 if (rx_status.freq != data2->channel->center_freq &&
3046 (!data2->tmp_chan ||
3047 rx_status.freq != data2->tmp_chan->center_freq)) {
3048 mutex_unlock(&data2->mutex);
3049 goto out;
3050 }
3051 mutex_unlock(&data2->mutex);
3052 } else {
3053 rx_status.freq = data2->channel->center_freq;
3054 }
3055
7882513b
JL		 3056 rx_status.band = data2->channel->band;
3057 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
3058 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
3059
3060 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
2155c3f8
BG		 3061 data2->rx_pkts++;
3062 data2->rx_bytes += skb->len;
7882513b
JL		 3063 ieee80211_rx_irqsafe(data2->hw, skb);
3064
3065 return 0;
3066err:
c393862f 3067 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 3068out:
3069 dev_kfree_skb(skb);
3070 return -EINVAL;
3071}
3072
3073static int hwsim_register_received_nl(struct sk_buff *skb_2,
3074 struct genl_info *info)
3075{
f21e4d8e 3076 struct net *net = genl_info_net(info);
c5ac0854
JB		 3077 struct mac80211_hwsim_data *data;
3078 int chans = 1;
3079
3080 spin_lock_bh(&hwsim_radio_lock);
3081 list_for_each_entry(data, &hwsim_radios, list)
3082 chans = max(chans, data->channels);
3083 spin_unlock_bh(&hwsim_radio_lock);
3084
3085 /* In the future we should revise the userspace API and allow it
3086 * to set a flag that it does support multi-channel, then we can
3087 * let this pass conditionally on the flag.
3088 * For current userspace, prohibit it since it won't work right.
3089 */
3090 if (chans > 1)
3091 return -EOPNOTSUPP;
3092
f21e4d8e 3093 if (hwsim_net_get_wmediumd(net))
85ca8fc7 3094 return -EBUSY;
7882513b 3095
f21e4d8e 3096 hwsim_register_wmediumd(net, info->snd_portid);
7882513b
JL		 3097
3098 printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
15e47304 3099 "switching to wmediumd mode with pid %d\n", info->snd_portid);
7882513b
JL		 3100
3101 return 0;
7882513b
JL		 3102}
3103
62759361 3104static int hwsim_new_radio_nl(struct sk_buff *msg, struct genl_info *info)
bc791098 3105{
62759361 3106 struct hwsim_new_radio_params param = { 0 };
ff4dd73d 3107 const char *hwname = NULL;
62759361
JR		 3108
3109 param.reg_strict = info->attrs[HWSIM_ATTR_REG_STRICT_REG];
3110 param.p2p_device = info->attrs[HWSIM_ATTR_SUPPORT_P2P_DEVICE];
3111 param.channels = channels;
3112 param.destroy_on_close =
3113 info->attrs[HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE];
bc791098
JB		 3114
3115 if (info->attrs[HWSIM_ATTR_CHANNELS])
62759361 3116 param.channels = nla_get_u32(info->attrs[HWSIM_ATTR_CHANNELS]);
bc791098 3117
9a0cb89a 3118 if (info->attrs[HWSIM_ATTR_NO_VIF])
62759361 3119 param.no_vif = true;
9a0cb89a 3120
ff4dd73d
JB		 3121 if (info->attrs[HWSIM_ATTR_RADIO_NAME]) {
3122 hwname = kasprintf(GFP_KERNEL, "%.*s",
3123 nla_len(info->attrs[HWSIM_ATTR_RADIO_NAME]),
3124 (char *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]));
3125 if (!hwname)
3126 return -ENOMEM;
3127 param.hwname = hwname;
3128 }
5cd8926b 3129
361c3e04 3130 if (info->attrs[HWSIM_ATTR_USE_CHANCTX])
62759361 3131 param.use_chanctx = true;
361c3e04 3132 else
62759361 3133 param.use_chanctx = (param.channels > 1);
361c3e04 3134
26b0e411 3135 if (info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2])
62759361
JR		 3136 param.reg_alpha2 =
3137 nla_data(info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2]);
26b0e411
JB		 3138
3139 if (info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]) {
3140 u32 idx = nla_get_u32(info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]);
3141
3142 if (idx >= ARRAY_SIZE(hwsim_world_regdom_custom))
3143 return -EINVAL;
62759361 3144 param.regd = hwsim_world_regdom_custom[idx];
26b0e411
JB		 3145 }
3146
62759361 3147 return mac80211_hwsim_new_radio(info, &param);
bc791098
JB		 3148}
3149
579a05f2 3150static int hwsim_del_radio_nl(struct sk_buff *msg, struct genl_info *info)
bc791098
JB		 3151{
3152 struct mac80211_hwsim_data *data;
8cdd9e1c
BG		 3153 s64 idx = -1;
3154 const char *hwname = NULL;
bc791098 3155
ff4dd73d 3156 if (info->attrs[HWSIM_ATTR_RADIO_ID]) {
8cdd9e1c 3157 idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
ff4dd73d
JB		 3158 } else if (info->attrs[HWSIM_ATTR_RADIO_NAME]) {
3159 hwname = kasprintf(GFP_KERNEL, "%.*s",
3160 nla_len(info->attrs[HWSIM_ATTR_RADIO_NAME]),
3161 (char *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]));
3162 if (!hwname)
3163 return -ENOMEM;
3164 } else
bc791098 3165 return -EINVAL;
bc791098
JB		 3166
3167 spin_lock_bh(&hwsim_radio_lock);
3168 list_for_each_entry(data, &hwsim_radios, list) {
8cdd9e1c
BG		 3169 if (idx >= 0) {
3170 if (data->idx != idx)
3171 continue;
3172 } else {
ff4dd73d
JB		 3173 if (!hwname ||
3174 strcmp(hwname, wiphy_name(data->hw->wiphy)))
8cdd9e1c
BG		 3175 continue;
3176 }
3177
100cb9ff
MW		 3178 if (!net_eq(wiphy_net(data->hw->wiphy), genl_info_net(info)))
3179 continue;
3180
bc791098
JB		 3181 list_del(&data->list);
3182 spin_unlock_bh(&hwsim_radio_lock);
b9995f83
JR		 3183 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
3184 info);
ff4dd73d 3185 kfree(hwname);
bc791098
JB		 3186 return 0;
3187 }
3188 spin_unlock_bh(&hwsim_radio_lock);
3189
ff4dd73d 3190 kfree(hwname);
bc791098 3191 return -ENODEV;
7882513b
JL		 3192}
3193
93d638d4
PF		 3194static int hwsim_get_radio_nl(struct sk_buff *msg, struct genl_info *info)
3195{
3196 struct mac80211_hwsim_data *data;
3197 struct sk_buff *skb;
3198 int idx, res = -ENODEV;
3199
3200 if (!info->attrs[HWSIM_ATTR_RADIO_ID])
3201 return -EINVAL;
3202 idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
3203
3204 spin_lock_bh(&hwsim_radio_lock);
3205 list_for_each_entry(data, &hwsim_radios, list) {
3206 if (data->idx != idx)
3207 continue;
3208
100cb9ff
MW		 3209 if (!net_eq(wiphy_net(data->hw->wiphy), genl_info_net(info)))
3210 continue;
3211
93d638d4
PF		 3212 skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3213 if (!skb) {
3214 res = -ENOMEM;
3215 goto out_err;
3216 }
3217
3218 res = mac80211_hwsim_get_radio(skb, data, info->snd_portid,
3219 info->snd_seq, NULL, 0);
3220 if (res < 0) {
3221 nlmsg_free(skb);
3222 goto out_err;
3223 }
3224
3225 genlmsg_reply(skb, info);
3226 break;
3227 }
3228
3229out_err:
3230 spin_unlock_bh(&hwsim_radio_lock);
3231
3232 return res;
3233}
3234
3235static int hwsim_dump_radio_nl(struct sk_buff *skb,
3236 struct netlink_callback *cb)
3237{
3238 int idx = cb->args[0];
3239 struct mac80211_hwsim_data *data = NULL;
3240 int res;
3241
3242 spin_lock_bh(&hwsim_radio_lock);
3243
3244 if (idx == hwsim_radio_idx)
3245 goto done;
3246
3247 list_for_each_entry(data, &hwsim_radios, list) {
3248 if (data->idx < idx)
3249 continue;
3250
100cb9ff
MW		 3251 if (!net_eq(wiphy_net(data->hw->wiphy), sock_net(skb->sk)))
3252 continue;
3253
93d638d4
PF		 3254 res = mac80211_hwsim_get_radio(skb, data,
3255 NETLINK_CB(cb->skb).portid,
3256 cb->nlh->nlmsg_seq, cb,
3257 NLM_F_MULTI);
3258 if (res < 0)
3259 break;
3260
3261 idx = data->idx + 1;
3262 }
3263
3264 cb->args[0] = idx;
3265
3266done:
3267 spin_unlock_bh(&hwsim_radio_lock);
3268 return skb->len;
3269}
3270
7882513b 3271/* Generic Netlink operations array */
4534de83 3272static const struct genl_ops hwsim_ops[] = {
7882513b
JL		 3273 {
3274 .cmd = HWSIM_CMD_REGISTER,
3275 .policy = hwsim_genl_policy,
3276 .doit = hwsim_register_received_nl,
f21e4d8e 3277 .flags = GENL_UNS_ADMIN_PERM,
7882513b
JL		 3278 },
3279 {
3280 .cmd = HWSIM_CMD_FRAME,
3281 .policy = hwsim_genl_policy,
3282 .doit = hwsim_cloned_frame_received_nl,
3283 },
3284 {
3285 .cmd = HWSIM_CMD_TX_INFO_FRAME,
3286 .policy = hwsim_genl_policy,
3287 .doit = hwsim_tx_info_frame_received_nl,
3288 },
bc791098 3289 {
62759361 3290 .cmd = HWSIM_CMD_NEW_RADIO,
bc791098 3291 .policy = hwsim_genl_policy,
62759361 3292 .doit = hwsim_new_radio_nl,
100cb9ff 3293 .flags = GENL_UNS_ADMIN_PERM,
bc791098
JB		 3294 },
3295 {
579a05f2 3296 .cmd = HWSIM_CMD_DEL_RADIO,
bc791098 3297 .policy = hwsim_genl_policy,
579a05f2 3298 .doit = hwsim_del_radio_nl,
100cb9ff 3299 .flags = GENL_UNS_ADMIN_PERM,
bc791098 3300 },
93d638d4
PF		 3301 {
3302 .cmd = HWSIM_CMD_GET_RADIO,
3303 .policy = hwsim_genl_policy,
3304 .doit = hwsim_get_radio_nl,
3305 .dumpit = hwsim_dump_radio_nl,
3306 },
7882513b
JL		 3307};
3308
56989f6d 3309static struct genl_family hwsim_genl_family __ro_after_init = {
489111e5
JB		 3310 .name = "MAC80211_HWSIM",
3311 .version = 1,
3312 .maxattr = HWSIM_ATTR_MAX,
3313 .netnsok = true,
3314 .module = THIS_MODULE,
3315 .ops = hwsim_ops,
3316 .n_ops = ARRAY_SIZE(hwsim_ops),
3317 .mcgrps = hwsim_mcgrps,
3318 .n_mcgrps = ARRAY_SIZE(hwsim_mcgrps),
3319};
3320
e9ed49bf
JR		 3321static void destroy_radio(struct work_struct *work)
3322{
3323 struct mac80211_hwsim_data *data =
3324 container_of(work, struct mac80211_hwsim_data, destroy_work);
3325
b9995f83 3326 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy), NULL);
e9ed49bf
JR		 3327}
3328
3329static void remove_user_radios(u32 portid)
3330{
3331 struct mac80211_hwsim_data *entry, *tmp;
3332
3333 spin_lock_bh(&hwsim_radio_lock);
3334 list_for_each_entry_safe(entry, tmp, &hwsim_radios, list) {
3335 if (entry->destroy_on_close && entry->portid == portid) {
3336 list_del(&entry->list);
3337 INIT_WORK(&entry->destroy_work, destroy_radio);
3338 schedule_work(&entry->destroy_work);
3339 }
3340 }
3341 spin_unlock_bh(&hwsim_radio_lock);
3342}
3343
7882513b
JL		 3344static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
3345 unsigned long state,
3346 void *_notify)
3347{
3348 struct netlink_notify *notify = _notify;
3349
3350 if (state != NETLINK_URELEASE)
3351 return NOTIFY_DONE;
3352
e9ed49bf
JR		 3353 remove_user_radios(notify->portid);
3354
f21e4d8e 3355 if (notify->portid == hwsim_net_get_wmediumd(notify->net)) {
7882513b
JL		 3356 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
3357 " socket, switching to perfect channel medium\n");
f21e4d8e 3358 hwsim_register_wmediumd(notify->net, 0);
7882513b
JL		 3359 }
3360 return NOTIFY_DONE;
3361
3362}
3363
3364static struct notifier_block hwsim_netlink_notifier = {
3365 .notifier_call = mac80211_hwsim_netlink_notify,
3366};
3367
56989f6d 3368static int __init hwsim_init_netlink(void)
7882513b
JL		 3369{
3370 int rc;
e8261171 3371
7882513b
JL		 3372 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
3373
489111e5 3374 rc = genl_register_family(&hwsim_genl_family);
7882513b
JL		 3375 if (rc)
3376 goto failure;
3377
3378 rc = netlink_register_notifier(&hwsim_netlink_notifier);
2459cd87
SKY		 3379 if (rc) {
3380 genl_unregister_family(&hwsim_genl_family);
7882513b 3381 goto failure;
2459cd87 3382 }
7882513b
JL		 3383
3384 return 0;
3385
3386failure:
c393862f 3387 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 3388 return -EINVAL;
3389}
3390
100cb9ff
MW		 3391static __net_init int hwsim_init_net(struct net *net)
3392{
3393 hwsim_net_set_netgroup(net);
3394
3395 return 0;
3396}
3397
3398static void __net_exit hwsim_exit_net(struct net *net)
3399{
3400 struct mac80211_hwsim_data *data, *tmp;
3401
3402 spin_lock_bh(&hwsim_radio_lock);
3403 list_for_each_entry_safe(data, tmp, &hwsim_radios, list) {
3404 if (!net_eq(wiphy_net(data->hw->wiphy), net))
3405 continue;
3406
3407 /* Radios created in init_net are returned to init_net. */
3408 if (data->netgroup == hwsim_net_get_netgroup(&init_net))
3409 continue;
3410
3411 list_del(&data->list);
3412 INIT_WORK(&data->destroy_work, destroy_radio);
3413 schedule_work(&data->destroy_work);
3414 }
3415 spin_unlock_bh(&hwsim_radio_lock);
3416}
3417
3418static struct pernet_operations hwsim_net_ops = {
3419 .init = hwsim_init_net,
3420 .exit = hwsim_exit_net,
3421 .id = &hwsim_net_id,
3422 .size = sizeof(struct hwsim_net),
3423};
3424
7882513b
JL		 3425static void hwsim_exit_netlink(void)
3426{
7882513b
JL		 3427 /* unregister the notifier */
3428 netlink_unregister_notifier(&hwsim_netlink_notifier);
3429 /* unregister the family */
cf7a6b2d 3430 genl_unregister_family(&hwsim_genl_family);
7882513b
JL		 3431}
3432
acc1e7a3
JM		 3433static int __init init_mac80211_hwsim(void)
3434{
f39c2bfa 3435 int i, err;
acc1e7a3 3436
bc791098 3437 if (radios < 0 || radios > 100)
acc1e7a3
JM		 3438 return -EINVAL;
3439
e8261171
JB		 3440 if (channels < 1)
3441 return -EINVAL;
3442
0e057d73 3443 spin_lock_init(&hwsim_radio_lock);
acc1e7a3 3444
100cb9ff 3445 err = register_pernet_device(&hwsim_net_ops);
9ea92774
MP		 3446 if (err)
3447 return err;
3448
100cb9ff
MW		 3449 err = platform_driver_register(&mac80211_hwsim_driver);
3450 if (err)
3451 goto out_unregister_pernet;
3452
acc1e7a3 3453 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
9ea92774
MP		 3454 if (IS_ERR(hwsim_class)) {
3455 err = PTR_ERR(hwsim_class);
f39c2bfa 3456 goto out_unregister_driver;
9ea92774 3457 }
acc1e7a3 3458
62759361
JR		 3459 err = hwsim_init_netlink();
3460 if (err < 0)
3461 goto out_unregister_driver;
3462
0e057d73 3463 for (i = 0; i < radios; i++) {
62759361
JR		 3464 struct hwsim_new_radio_params param = { 0 };
3465
3466 param.channels = channels;
acc1e7a3 3467
4a5af9c2 3468 switch (regtest) {
4a5af9c2 3469 case HWSIM_REGTEST_DIFF_COUNTRY:
26b0e411 3470 if (i < ARRAY_SIZE(hwsim_alpha2s))
62759361 3471 param.reg_alpha2 = hwsim_alpha2s[i];
4a5af9c2
LR		 3472 break;
3473 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
3474 if (!i)
62759361 3475 param.reg_alpha2 = hwsim_alpha2s[0];
4a5af9c2 3476 break;
4a5af9c2 3477 case HWSIM_REGTEST_STRICT_ALL:
62759361 3478 param.reg_strict = true;
26b0e411 3479 case HWSIM_REGTEST_DRIVER_REG_ALL:
62759361 3480 param.reg_alpha2 = hwsim_alpha2s[0];
4a5af9c2 3481 break;
26b0e411
JB		 3482 case HWSIM_REGTEST_WORLD_ROAM:
3483 if (i == 0)
62759361 3484 param.regd = &hwsim_world_regdom_custom_01;
4a5af9c2
LR		 3485 break;
3486 case HWSIM_REGTEST_CUSTOM_WORLD:
62759361 3487 param.regd = &hwsim_world_regdom_custom_01;
26b0e411 3488 break;
4a5af9c2 3489 case HWSIM_REGTEST_CUSTOM_WORLD_2:
26b0e411 3490 if (i == 0)
62759361 3491 param.regd = &hwsim_world_regdom_custom_01;
26b0e411 3492 else if (i == 1)
62759361 3493 param.regd = &hwsim_world_regdom_custom_02;
4a5af9c2
LR		 3494 break;
3495 case HWSIM_REGTEST_STRICT_FOLLOW:
26b0e411 3496 if (i == 0) {
62759361
JR		 3497 param.reg_strict = true;
3498 param.reg_alpha2 = hwsim_alpha2s[0];
26b0e411 3499 }
4a5af9c2
LR		 3500 break;
3501 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
26b0e411 3502 if (i == 0) {
62759361
JR		 3503 param.reg_strict = true;
3504 param.reg_alpha2 = hwsim_alpha2s[0];
26b0e411 3505 } else if (i == 1) {
62759361 3506 param.reg_alpha2 = hwsim_alpha2s[1];
26b0e411 3507 }
4a5af9c2
LR		 3508 break;
3509 case HWSIM_REGTEST_ALL:
26b0e411
JB		 3510 switch (i) {
3511 case 0:
62759361 3512 param.regd = &hwsim_world_regdom_custom_01;
26b0e411
JB		 3513 break;
3514 case 1:
62759361 3515 param.regd = &hwsim_world_regdom_custom_02;
26b0e411
JB		 3516 break;
3517 case 2:
62759361 3518 param.reg_alpha2 = hwsim_alpha2s[0];
26b0e411
JB		 3519 break;
3520 case 3:
62759361 3521 param.reg_alpha2 = hwsim_alpha2s[1];
26b0e411
JB		 3522 break;
3523 case 4:
62759361
JR		 3524 param.reg_strict = true;
3525 param.reg_alpha2 = hwsim_alpha2s[2];
26b0e411
JB		 3526 break;
3527 }
4a5af9c2
LR		 3528 break;
3529 default:
3530 break;
3531 }
3532
62759361
JR		 3533 param.p2p_device = support_p2p_device;
3534 param.use_chanctx = channels > 1;
3535
3536 err = mac80211_hwsim_new_radio(NULL, &param);
bc791098 3537 if (err < 0)
f39c2bfa 3538 goto out_free_radios;
acc1e7a3
JM		 3539 }
3540
c835a677
TG		 3541 hwsim_mon = alloc_netdev(0, "hwsim%d", NET_NAME_UNKNOWN,
3542 hwsim_mon_setup);
bcdd8220
WY		 3543 if (hwsim_mon == NULL) {
3544 err = -ENOMEM;
f39c2bfa 3545 goto out_free_radios;
bcdd8220 3546 }
acc1e7a3 3547
7882513b 3548 rtnl_lock();
7882513b 3549 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
f39c2bfa
JB		 3550 if (err < 0) {
3551 rtnl_unlock();
3552 goto out_free_radios;
3553 }
7882513b
JL		 3554
3555 err = register_netdevice(hwsim_mon);
f39c2bfa
JB		 3556 if (err < 0) {
3557 rtnl_unlock();
3558 goto out_free_mon;
3559 }
7882513b
JL		 3560 rtnl_unlock();
3561
acc1e7a3
JM		 3562 return 0;
3563
f39c2bfa 3564out_free_mon:
acc1e7a3 3565 free_netdev(hwsim_mon);
f39c2bfa 3566out_free_radios:
3a33cc10 3567 mac80211_hwsim_free();
f39c2bfa 3568out_unregister_driver:
c07fe5ae 3569 platform_driver_unregister(&mac80211_hwsim_driver);
100cb9ff
MW		 3570out_unregister_pernet:
3571 unregister_pernet_device(&hwsim_net_ops);
acc1e7a3
JM		 3572 return err;
3573}
f8fffc7e 3574module_init(init_mac80211_hwsim);
acc1e7a3
JM		 3575
3576static void __exit exit_mac80211_hwsim(void)
3577{
0e057d73 3578 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
acc1e7a3 3579
7882513b
JL		 3580 hwsim_exit_netlink();
3581
acc1e7a3 3582 mac80211_hwsim_free();
5d416351 3583 unregister_netdev(hwsim_mon);
c07fe5ae 3584 platform_driver_unregister(&mac80211_hwsim_driver);
100cb9ff 3585 unregister_pernet_device(&hwsim_net_ops);
acc1e7a3 3586}
acc1e7a3 3587module_exit(exit_mac80211_hwsim);
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