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Merge tag 'qcom-soc-for-4.7-2' into net-next
[linux-2.6-block.git] / drivers / net / wireless / mac80211_hwsim.c
CommitLineData
acc1e7a3
JM		 1/*
2 * mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211
3 * Copyright (c) 2008, Jouni Malinen <j@w1.fi>
7882513b 4 * Copyright (c) 2011, Javier Lopez <jlopex@gmail.com>
acc1e7a3
JM		 5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10
11/*
12 * TODO:
2b2d7795
JB		 13 * - Add TSF sync and fix IBSS beacon transmission by adding
14 * competition for "air time" at TBTT
acc1e7a3
JM		 15 * - RX filtering based on filter configuration (data->rx_filter)
16 */
17
0e057d73 18#include <linux/list.h>
5a0e3ad6 19#include <linux/slab.h>
0e057d73 20#include <linux/spinlock.h>
90e3012e
JB		 21#include <net/dst.h>
22#include <net/xfrm.h>
acc1e7a3
JM		 23#include <net/mac80211.h>
24#include <net/ieee80211_radiotap.h>
25#include <linux/if_arp.h>
26#include <linux/rtnetlink.h>
27#include <linux/etherdevice.h>
9ea92774 28#include <linux/platform_device.h>
fc6971d4 29#include <linux/debugfs.h>
9d9779e7 30#include <linux/module.h>
2f40b940 31#include <linux/ktime.h>
7882513b
JL		 32#include <net/genetlink.h>
33#include "mac80211_hwsim.h"
34
35#define WARN_QUEUE 100
36#define MAX_QUEUE 200
acc1e7a3
JM		 37
38MODULE_AUTHOR("Jouni Malinen");
39MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
40MODULE_LICENSE("GPL");
41
15e47304 42static u32 wmediumd_portid;
a1910f9c 43
acc1e7a3
JM		 44static int radios = 2;
45module_param(radios, int, 0444);
46MODULE_PARM_DESC(radios, "Number of simulated radios");
47
e8261171
JB		 48static int channels = 1;
49module_param(channels, int, 0444);
50MODULE_PARM_DESC(channels, "Number of concurrent channels");
69068036 51
a357d7f9
JB		 52static bool paged_rx = false;
53module_param(paged_rx, bool, 0644);
54MODULE_PARM_DESC(paged_rx, "Use paged SKBs for RX instead of linear ones");
55
1eb32179
KB		 56static bool rctbl = false;
57module_param(rctbl, bool, 0444);
58MODULE_PARM_DESC(rctbl, "Handle rate control table");
59
8c66a3d9
JB		 60static bool support_p2p_device = true;
61module_param(support_p2p_device, bool, 0444);
62MODULE_PARM_DESC(support_p2p_device, "Support P2P-Device interface type");
63
4a5af9c2
LR		 64/**
65 * enum hwsim_regtest - the type of regulatory tests we offer
66 *
67 * These are the different values you can use for the regtest
68 * module parameter. This is useful to help test world roaming
69 * and the driver regulatory_hint() call and combinations of these.
70 * If you want to do specific alpha2 regulatory domain tests simply
71 * use the userspace regulatory request as that will be respected as
72 * well without the need of this module parameter. This is designed
73 * only for testing the driver regulatory request, world roaming
74 * and all possible combinations.
75 *
76 * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
77 * this is the default value.
78 * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
79 * hint, only one driver regulatory hint will be sent as such the
80 * secondary radios are expected to follow.
81 * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
82 * request with all radios reporting the same regulatory domain.
83 * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
84 * different regulatory domains requests. Expected behaviour is for
85 * an intersection to occur but each device will still use their
86 * respective regulatory requested domains. Subsequent radios will
87 * use the resulting intersection.
25985edc 88 * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We accomplish
4a5af9c2
LR		 89 * this by using a custom beacon-capable regulatory domain for the first
90 * radio. All other device world roam.
91 * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
92 * domain requests. All radios will adhere to this custom world regulatory
93 * domain.
94 * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
95 * domain requests. The first radio will adhere to the first custom world
96 * regulatory domain, the second one to the second custom world regulatory
97 * domain. All other devices will world roam.
98 * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain
99 * settings, only the first radio will send a regulatory domain request
100 * and use strict settings. The rest of the radios are expected to follow.
101 * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
102 * settings. All radios will adhere to this.
103 * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
104 * domain settings, combined with secondary driver regulatory domain
105 * settings. The first radio will get a strict regulatory domain setting
106 * using the first driver regulatory request and the second radio will use
107 * non-strict settings using the second driver regulatory request. All
108 * other devices should follow the intersection created between the
109 * first two.
110 * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
111 * at least 6 radios for a complete test. We will test in this order:
112 * 1 - driver custom world regulatory domain
113 * 2 - second custom world regulatory domain
114 * 3 - first driver regulatory domain request
115 * 4 - second driver regulatory domain request
116 * 5 - strict regulatory domain settings using the third driver regulatory
117 * domain request
118 * 6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
119 * regulatory requests.
120 */
121enum hwsim_regtest {
122 HWSIM_REGTEST_DISABLED = 0,
123 HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1,
124 HWSIM_REGTEST_DRIVER_REG_ALL = 2,
125 HWSIM_REGTEST_DIFF_COUNTRY = 3,
126 HWSIM_REGTEST_WORLD_ROAM = 4,
127 HWSIM_REGTEST_CUSTOM_WORLD = 5,
128 HWSIM_REGTEST_CUSTOM_WORLD_2 = 6,
129 HWSIM_REGTEST_STRICT_FOLLOW = 7,
130 HWSIM_REGTEST_STRICT_ALL = 8,
131 HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9,
132 HWSIM_REGTEST_ALL = 10,
133};
134
135/* Set to one of the HWSIM_REGTEST_* values above */
136static int regtest = HWSIM_REGTEST_DISABLED;
137module_param(regtest, int, 0444);
138MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run");
139
140static const char *hwsim_alpha2s[] = {
141 "FI",
142 "AL",
143 "US",
144 "DE",
145 "JP",
146 "AL",
147};
148
149static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = {
150 .n_reg_rules = 4,
151 .alpha2 = "99",
152 .reg_rules = {
153 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
154 REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
155 REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
156 REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
157 }
158};
159
160static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = {
161 .n_reg_rules = 2,
162 .alpha2 = "99",
163 .reg_rules = {
164 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
165 REG_RULE(5725-10, 5850+10, 40, 0, 30,
8fe02e16 166 NL80211_RRF_NO_IR),
4a5af9c2
LR		 167 }
168};
169
26b0e411
JB		 170static const struct ieee80211_regdomain *hwsim_world_regdom_custom[] = {
171 &hwsim_world_regdom_custom_01,
172 &hwsim_world_regdom_custom_02,
173};
174
8aa21e6f
JB		 175struct hwsim_vif_priv {
176 u32 magic;
fc6971d4
JM		 177 u8 bssid[ETH_ALEN];
178 bool assoc;
0bb861e6 179 bool bcn_en;
fc6971d4 180 u16 aid;
8aa21e6f
JB		 181};
182
183#define HWSIM_VIF_MAGIC 0x69537748
184
185static inline void hwsim_check_magic(struct ieee80211_vif *vif)
186{
187 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
e8261171
JB		 188 WARN(vp->magic != HWSIM_VIF_MAGIC,
189 "Invalid VIF (%p) magic %#x, %pM, %d/%d\n",
190 vif, vp->magic, vif->addr, vif->type, vif->p2p);
8aa21e6f
JB		 191}
192
193static inline void hwsim_set_magic(struct ieee80211_vif *vif)
194{
195 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
196 vp->magic = HWSIM_VIF_MAGIC;
197}
198
199static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
200{
201 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
202 vp->magic = 0;
203}
acc1e7a3 204
81c06523
JB		 205struct hwsim_sta_priv {
206 u32 magic;
207};
208
e8261171 209#define HWSIM_STA_MAGIC 0x6d537749
81c06523
JB		 210
211static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
212{
213 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
5d6924ea 214 WARN_ON(sp->magic != HWSIM_STA_MAGIC);
81c06523
JB		 215}
216
217static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
218{
219 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
5d6924ea 220 sp->magic = HWSIM_STA_MAGIC;
81c06523
JB		 221}
222
223static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
224{
225 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
226 sp->magic = 0;
227}
228
e8261171
JB		 229struct hwsim_chanctx_priv {
230 u32 magic;
231};
232
233#define HWSIM_CHANCTX_MAGIC 0x6d53774a
234
235static inline void hwsim_check_chanctx_magic(struct ieee80211_chanctx_conf *c)
236{
237 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
238 WARN_ON(cp->magic != HWSIM_CHANCTX_MAGIC);
239}
240
241static inline void hwsim_set_chanctx_magic(struct ieee80211_chanctx_conf *c)
242{
243 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
244 cp->magic = HWSIM_CHANCTX_MAGIC;
245}
246
247static inline void hwsim_clear_chanctx_magic(struct ieee80211_chanctx_conf *c)
248{
249 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
250 cp->magic = 0;
251}
252
acc1e7a3
JM		 253static struct class *hwsim_class;
254
acc1e7a3
JM		 255static struct net_device *hwsim_mon; /* global monitor netdev */
256
22cad735 257#define CHAN2G(_freq) { \
57fbcce3 258 .band = NL80211_BAND_2GHZ, \
22cad735
LR		 259 .center_freq = (_freq), \
260 .hw_value = (_freq), \
261 .max_power = 20, \
262}
263
264#define CHAN5G(_freq) { \
57fbcce3 265 .band = NL80211_BAND_5GHZ, \
22cad735
LR		 266 .center_freq = (_freq), \
267 .hw_value = (_freq), \
268 .max_power = 20, \
269}
270
271static const struct ieee80211_channel hwsim_channels_2ghz[] = {
272 CHAN2G(2412), /* Channel 1 */
273 CHAN2G(2417), /* Channel 2 */
274 CHAN2G(2422), /* Channel 3 */
275 CHAN2G(2427), /* Channel 4 */
276 CHAN2G(2432), /* Channel 5 */
277 CHAN2G(2437), /* Channel 6 */
278 CHAN2G(2442), /* Channel 7 */
279 CHAN2G(2447), /* Channel 8 */
280 CHAN2G(2452), /* Channel 9 */
281 CHAN2G(2457), /* Channel 10 */
282 CHAN2G(2462), /* Channel 11 */
283 CHAN2G(2467), /* Channel 12 */
284 CHAN2G(2472), /* Channel 13 */
285 CHAN2G(2484), /* Channel 14 */
286};
acc1e7a3 287
22cad735
LR		 288static const struct ieee80211_channel hwsim_channels_5ghz[] = {
289 CHAN5G(5180), /* Channel 36 */
290 CHAN5G(5200), /* Channel 40 */
291 CHAN5G(5220), /* Channel 44 */
292 CHAN5G(5240), /* Channel 48 */
293
294 CHAN5G(5260), /* Channel 52 */
295 CHAN5G(5280), /* Channel 56 */
296 CHAN5G(5300), /* Channel 60 */
297 CHAN5G(5320), /* Channel 64 */
298
299 CHAN5G(5500), /* Channel 100 */
300 CHAN5G(5520), /* Channel 104 */
301 CHAN5G(5540), /* Channel 108 */
302 CHAN5G(5560), /* Channel 112 */
303 CHAN5G(5580), /* Channel 116 */
304 CHAN5G(5600), /* Channel 120 */
305 CHAN5G(5620), /* Channel 124 */
306 CHAN5G(5640), /* Channel 128 */
307 CHAN5G(5660), /* Channel 132 */
308 CHAN5G(5680), /* Channel 136 */
309 CHAN5G(5700), /* Channel 140 */
310
311 CHAN5G(5745), /* Channel 149 */
312 CHAN5G(5765), /* Channel 153 */
313 CHAN5G(5785), /* Channel 157 */
314 CHAN5G(5805), /* Channel 161 */
315 CHAN5G(5825), /* Channel 165 */
acc1e7a3
JM		 316};
317
318static const struct ieee80211_rate hwsim_rates[] = {
319 { .bitrate = 10 },
320 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
321 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
322 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
323 { .bitrate = 60 },
324 { .bitrate = 90 },
325 { .bitrate = 120 },
326 { .bitrate = 180 },
327 { .bitrate = 240 },
328 { .bitrate = 360 },
329 { .bitrate = 480 },
330 { .bitrate = 540 }
331};
332
d5d011b4
JM		 333#define OUI_QCA 0x001374
334#define QCA_NL80211_SUBCMD_TEST 1
335enum qca_nl80211_vendor_subcmds {
336 QCA_WLAN_VENDOR_ATTR_TEST = 8,
337 QCA_WLAN_VENDOR_ATTR_MAX = QCA_WLAN_VENDOR_ATTR_TEST
338};
339
340static const struct nla_policy
341hwsim_vendor_test_policy[QCA_WLAN_VENDOR_ATTR_MAX + 1] = {
342 [QCA_WLAN_VENDOR_ATTR_MAX] = { .type = NLA_U32 },
343};
344
345static int mac80211_hwsim_vendor_cmd_test(struct wiphy *wiphy,
346 struct wireless_dev *wdev,
347 const void *data, int data_len)
348{
349 struct sk_buff *skb;
350 struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_MAX + 1];
351 int err;
352 u32 val;
353
354 err = nla_parse(tb, QCA_WLAN_VENDOR_ATTR_MAX, data, data_len,
355 hwsim_vendor_test_policy);
356 if (err)
357 return err;
358 if (!tb[QCA_WLAN_VENDOR_ATTR_TEST])
359 return -EINVAL;
360 val = nla_get_u32(tb[QCA_WLAN_VENDOR_ATTR_TEST]);
361 wiphy_debug(wiphy, "%s: test=%u\n", __func__, val);
362
363 /* Send a vendor event as a test. Note that this would not normally be
364 * done within a command handler, but rather, based on some other
365 * trigger. For simplicity, this command is used to trigger the event
366 * here.
367 *
368 * event_idx = 0 (index in mac80211_hwsim_vendor_commands)
369 */
370 skb = cfg80211_vendor_event_alloc(wiphy, wdev, 100, 0, GFP_KERNEL);
371 if (skb) {
372 /* skb_put() or nla_put() will fill up data within
373 * NL80211_ATTR_VENDOR_DATA.
374 */
375
376 /* Add vendor data */
377 nla_put_u32(skb, QCA_WLAN_VENDOR_ATTR_TEST, val + 1);
378
379 /* Send the event - this will call nla_nest_end() */
380 cfg80211_vendor_event(skb, GFP_KERNEL);
381 }
382
383 /* Send a response to the command */
384 skb = cfg80211_vendor_cmd_alloc_reply_skb(wiphy, 10);
385 if (!skb)
386 return -ENOMEM;
387
388 /* skb_put() or nla_put() will fill up data within
389 * NL80211_ATTR_VENDOR_DATA
390 */
391 nla_put_u32(skb, QCA_WLAN_VENDOR_ATTR_TEST, val + 2);
392
393 return cfg80211_vendor_cmd_reply(skb);
394}
395
396static struct wiphy_vendor_command mac80211_hwsim_vendor_commands[] = {
397 {
398 .info = { .vendor_id = OUI_QCA,
399 .subcmd = QCA_NL80211_SUBCMD_TEST },
400 .flags = WIPHY_VENDOR_CMD_NEED_NETDEV,
401 .doit = mac80211_hwsim_vendor_cmd_test,
402 }
403};
404
405/* Advertise support vendor specific events */
406static const struct nl80211_vendor_cmd_info mac80211_hwsim_vendor_events[] = {
407 { .vendor_id = OUI_QCA, .subcmd = 1 },
408};
409
de0421d5
JB		 410static const struct ieee80211_iface_limit hwsim_if_limits[] = {
411 { .max = 1, .types = BIT(NL80211_IFTYPE_ADHOC) },
412 { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) |
413 BIT(NL80211_IFTYPE_P2P_CLIENT) |
414#ifdef CONFIG_MAC80211_MESH
415 BIT(NL80211_IFTYPE_MESH_POINT) |
416#endif
417 BIT(NL80211_IFTYPE_AP) |
418 BIT(NL80211_IFTYPE_P2P_GO) },
8c66a3d9
JB		 419 /* must be last, see hwsim_if_comb */
420 { .max = 1, .types = BIT(NL80211_IFTYPE_P2P_DEVICE) }
de0421d5
JB		 421};
422
423static const struct ieee80211_iface_limit hwsim_if_dfs_limits[] = {
424 { .max = 8, .types = BIT(NL80211_IFTYPE_AP) },
425};
426
427static const struct ieee80211_iface_combination hwsim_if_comb[] = {
8c66a3d9
JB		 428 {
429 .limits = hwsim_if_limits,
430 /* remove the last entry which is P2P_DEVICE */
431 .n_limits = ARRAY_SIZE(hwsim_if_limits) - 1,
432 .max_interfaces = 2048,
433 .num_different_channels = 1,
434 },
435 {
436 .limits = hwsim_if_dfs_limits,
437 .n_limits = ARRAY_SIZE(hwsim_if_dfs_limits),
438 .max_interfaces = 8,
439 .num_different_channels = 1,
440 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
441 BIT(NL80211_CHAN_WIDTH_20) |
442 BIT(NL80211_CHAN_WIDTH_40) |
443 BIT(NL80211_CHAN_WIDTH_80) |
444 BIT(NL80211_CHAN_WIDTH_160),
445 }
446};
447
448static const struct ieee80211_iface_combination hwsim_if_comb_p2p_dev[] = {
de0421d5
JB		 449 {
450 .limits = hwsim_if_limits,
451 .n_limits = ARRAY_SIZE(hwsim_if_limits),
452 .max_interfaces = 2048,
453 .num_different_channels = 1,
454 },
455 {
456 .limits = hwsim_if_dfs_limits,
457 .n_limits = ARRAY_SIZE(hwsim_if_dfs_limits),
458 .max_interfaces = 8,
459 .num_different_channels = 1,
460 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
461 BIT(NL80211_CHAN_WIDTH_20) |
462 BIT(NL80211_CHAN_WIDTH_40) |
463 BIT(NL80211_CHAN_WIDTH_80) |
464 BIT(NL80211_CHAN_WIDTH_160),
465 }
466};
467
0e057d73
JB		 468static spinlock_t hwsim_radio_lock;
469static struct list_head hwsim_radios;
2d68992b 470static int hwsim_radio_idx;
0e057d73 471
de0421d5
JB		 472static struct platform_driver mac80211_hwsim_driver = {
473 .driver = {
474 .name = "mac80211_hwsim",
de0421d5
JB		 475 },
476};
0e057d73 477
acc1e7a3 478struct mac80211_hwsim_data {
0e057d73
JB		 479 struct list_head list;
480 struct ieee80211_hw *hw;
acc1e7a3 481 struct device *dev;
57fbcce3 482 struct ieee80211_supported_band bands[NUM_NL80211_BANDS];
22cad735
LR		 483 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
484 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
acc1e7a3 485 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
38ed5048 486 struct ieee80211_iface_combination if_combination;
acc1e7a3 487
ef15aac6 488 struct mac_address addresses[2];
bc791098 489 int channels, idx;
361c3e04 490 bool use_chanctx;
e9ed49bf
JR		 491 bool destroy_on_close;
492 struct work_struct destroy_work;
493 u32 portid;
93d638d4
PF		 494 char alpha2[2];
495 const struct ieee80211_regdomain *regd;
ef15aac6 496
e8261171 497 struct ieee80211_channel *tmp_chan;
661ef475
JB		 498 struct ieee80211_channel *roc_chan;
499 u32 roc_duration;
500 struct delayed_work roc_start;
e8261171
JB		 501 struct delayed_work roc_done;
502 struct delayed_work hw_scan;
503 struct cfg80211_scan_request *hw_scan_request;
504 struct ieee80211_vif *hw_scan_vif;
505 int scan_chan_idx;
339467b9 506 u8 scan_addr[ETH_ALEN];
e8261171 507
acc1e7a3 508 struct ieee80211_channel *channel;
01e59e46 509 u64 beacon_int /* beacon interval in us */;
acc1e7a3 510 unsigned int rx_filter;
f74cb0f7
LR		 511 bool started, idle, scanning;
512 struct mutex mutex;
01e59e46 513 struct tasklet_hrtimer beacon_timer;
fc6971d4
JM		 514 enum ps_mode {
515 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
516 } ps;
517 bool ps_poll_pending;
518 struct dentry *debugfs;
73606d00 519
959eb2fd 520 uintptr_t pending_cookie;
7882513b 521 struct sk_buff_head pending; /* packets pending */
73606d00
DW		 522 /*
523 * Only radios in the same group can communicate together (the
524 * channel has to match too). Each bit represents a group. A
9ebac15f 525 * radio can be in more than one group.
73606d00
DW		 526 */
527 u64 group;
bdd7bd16
BG		 528
529 int power_level;
2f40b940
JC		 530
531 /* difference between this hw's clock and the real clock, in usecs */
45034bfb 532 s64 tsf_offset;
c51f8783 533 s64 bcn_delta;
b66851c3
TP		 534 /* absolute beacon transmission time. Used to cover up "tx" delay. */
535 u64 abs_bcn_ts;
2155c3f8
BG		 536
537 /* Stats */
538 u64 tx_pkts;
539 u64 rx_pkts;
540 u64 tx_bytes;
541 u64 rx_bytes;
542 u64 tx_dropped;
543 u64 tx_failed;
acc1e7a3
JM		 544};
545
546
547struct hwsim_radiotap_hdr {
548 struct ieee80211_radiotap_header hdr;
2f40b940 549 __le64 rt_tsft;
acc1e7a3
JM		 550 u8 rt_flags;
551 u8 rt_rate;
552 __le16 rt_channel;
553 __le16 rt_chbitmask;
ba2d3587 554} __packed;
acc1e7a3 555
76a56eb3
JM		 556struct hwsim_radiotap_ack_hdr {
557 struct ieee80211_radiotap_header hdr;
558 u8 rt_flags;
559 u8 pad;
560 __le16 rt_channel;
561 __le16 rt_chbitmask;
562} __packed;
563
7882513b
JL		 564/* MAC80211_HWSIM netlinf family */
565static struct genl_family hwsim_genl_family = {
566 .id = GENL_ID_GENERATE,
567 .hdrsize = 0,
568 .name = "MAC80211_HWSIM",
569 .version = 1,
570 .maxattr = HWSIM_ATTR_MAX,
571};
572
62759361
JR		 573enum hwsim_multicast_groups {
574 HWSIM_MCGRP_CONFIG,
575};
576
577static const struct genl_multicast_group hwsim_mcgrps[] = {
578 [HWSIM_MCGRP_CONFIG] = { .name = "config", },
579};
580
7882513b
JL		 581/* MAC80211_HWSIM netlink policy */
582
205d2429 583static const struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
9ddd12af
JB		 584 [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
585 [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
7882513b
JL		 586 [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
587 .len = IEEE80211_MAX_DATA_LEN },
588 [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
589 [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
590 [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
591 [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC,
9ddd12af
JB		 592 .len = IEEE80211_TX_MAX_RATES *
593 sizeof(struct hwsim_tx_rate)},
7882513b 594 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
bc791098
JB		 595 [HWSIM_ATTR_CHANNELS] = { .type = NLA_U32 },
596 [HWSIM_ATTR_RADIO_ID] = { .type = NLA_U32 },
26b0e411
JB		 597 [HWSIM_ATTR_REG_HINT_ALPHA2] = { .type = NLA_STRING, .len = 2 },
598 [HWSIM_ATTR_REG_CUSTOM_REG] = { .type = NLA_U32 },
599 [HWSIM_ATTR_REG_STRICT_REG] = { .type = NLA_FLAG },
8c66a3d9 600 [HWSIM_ATTR_SUPPORT_P2P_DEVICE] = { .type = NLA_FLAG },
e9ed49bf 601 [HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE] = { .type = NLA_FLAG },
de29eda8
JB		 602 [HWSIM_ATTR_RADIO_NAME] = { .type = NLA_STRING },
603 [HWSIM_ATTR_NO_VIF] = { .type = NLA_FLAG },
604 [HWSIM_ATTR_FREQ] = { .type = NLA_U32 },
7882513b 605};
acc1e7a3 606
de0421d5
JB		 607static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
608 struct sk_buff *skb,
609 struct ieee80211_channel *chan);
610
611/* sysfs attributes */
612static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
613{
614 struct mac80211_hwsim_data *data = dat;
615 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
616 struct sk_buff *skb;
617 struct ieee80211_pspoll *pspoll;
618
619 if (!vp->assoc)
620 return;
621
622 wiphy_debug(data->hw->wiphy,
623 "%s: send PS-Poll to %pM for aid %d\n",
624 __func__, vp->bssid, vp->aid);
625
626 skb = dev_alloc_skb(sizeof(*pspoll));
627 if (!skb)
628 return;
629 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
630 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
631 IEEE80211_STYPE_PSPOLL |
632 IEEE80211_FCTL_PM);
633 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
634 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
635 memcpy(pspoll->ta, mac, ETH_ALEN);
636
637 rcu_read_lock();
638 mac80211_hwsim_tx_frame(data->hw, skb,
639 rcu_dereference(vif->chanctx_conf)->def.chan);
640 rcu_read_unlock();
641}
642
643static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
644 struct ieee80211_vif *vif, int ps)
645{
646 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
647 struct sk_buff *skb;
648 struct ieee80211_hdr *hdr;
649
650 if (!vp->assoc)
651 return;
652
653 wiphy_debug(data->hw->wiphy,
654 "%s: send data::nullfunc to %pM ps=%d\n",
655 __func__, vp->bssid, ps);
656
657 skb = dev_alloc_skb(sizeof(*hdr));
658 if (!skb)
659 return;
660 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
661 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
662 IEEE80211_STYPE_NULLFUNC |
663 (ps ? IEEE80211_FCTL_PM : 0));
664 hdr->duration_id = cpu_to_le16(0);
665 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
666 memcpy(hdr->addr2, mac, ETH_ALEN);
667 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
668
669 rcu_read_lock();
670 mac80211_hwsim_tx_frame(data->hw, skb,
671 rcu_dereference(vif->chanctx_conf)->def.chan);
672 rcu_read_unlock();
673}
674
675
676static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
677 struct ieee80211_vif *vif)
678{
679 struct mac80211_hwsim_data *data = dat;
680 hwsim_send_nullfunc(data, mac, vif, 1);
681}
682
683static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
684 struct ieee80211_vif *vif)
685{
686 struct mac80211_hwsim_data *data = dat;
687 hwsim_send_nullfunc(data, mac, vif, 0);
688}
689
690static int hwsim_fops_ps_read(void *dat, u64 *val)
691{
692 struct mac80211_hwsim_data *data = dat;
693 *val = data->ps;
694 return 0;
695}
696
697static int hwsim_fops_ps_write(void *dat, u64 val)
698{
699 struct mac80211_hwsim_data *data = dat;
700 enum ps_mode old_ps;
701
702 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
703 val != PS_MANUAL_POLL)
704 return -EINVAL;
705
706 old_ps = data->ps;
707 data->ps = val;
708
a809ca5e 709 local_bh_disable();
de0421d5 710 if (val == PS_MANUAL_POLL) {
a809ca5e
JB		 711 ieee80211_iterate_active_interfaces_atomic(
712 data->hw, IEEE80211_IFACE_ITER_NORMAL,
713 hwsim_send_ps_poll, data);
de0421d5
JB		 714 data->ps_poll_pending = true;
715 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
a809ca5e
JB		 716 ieee80211_iterate_active_interfaces_atomic(
717 data->hw, IEEE80211_IFACE_ITER_NORMAL,
718 hwsim_send_nullfunc_ps, data);
de0421d5 719 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
a809ca5e
JB		 720 ieee80211_iterate_active_interfaces_atomic(
721 data->hw, IEEE80211_IFACE_ITER_NORMAL,
722 hwsim_send_nullfunc_no_ps, data);
de0421d5 723 }
a809ca5e 724 local_bh_enable();
de0421d5
JB		 725
726 return 0;
727}
728
729DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
730 "%llu\n");
731
732static int hwsim_write_simulate_radar(void *dat, u64 val)
733{
734 struct mac80211_hwsim_data *data = dat;
735
736 ieee80211_radar_detected(data->hw);
737
738 return 0;
739}
740
741DEFINE_SIMPLE_ATTRIBUTE(hwsim_simulate_radar, NULL,
742 hwsim_write_simulate_radar, "%llu\n");
743
744static int hwsim_fops_group_read(void *dat, u64 *val)
745{
746 struct mac80211_hwsim_data *data = dat;
747 *val = data->group;
748 return 0;
749}
750
751static int hwsim_fops_group_write(void *dat, u64 val)
752{
753 struct mac80211_hwsim_data *data = dat;
754 data->group = val;
755 return 0;
756}
757
758DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
759 hwsim_fops_group_read, hwsim_fops_group_write,
760 "%llx\n");
761
d0cf9c0d
SH		 762static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
763 struct net_device *dev)
acc1e7a3
JM		 764{
765 /* TODO: allow packet injection */
766 dev_kfree_skb(skb);
6ed10654 767 return NETDEV_TX_OK;
acc1e7a3
JM		 768}
769
b66851c3
TP		 770static inline u64 mac80211_hwsim_get_tsf_raw(void)
771{
772 return ktime_to_us(ktime_get_real());
773}
774
2f40b940
JC		 775static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
776{
b66851c3 777 u64 now = mac80211_hwsim_get_tsf_raw();
2f40b940
JC		 778 return cpu_to_le64(now + data->tsf_offset);
779}
acc1e7a3 780
12ce8ba3 781static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
b66851c3 782 struct ieee80211_vif *vif)
12ce8ba3
JC		 783{
784 struct mac80211_hwsim_data *data = hw->priv;
785 return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
786}
787
788static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
789 struct ieee80211_vif *vif, u64 tsf)
790{
791 struct mac80211_hwsim_data *data = hw->priv;
45034bfb 792 u64 now = mac80211_hwsim_get_tsf(hw, vif);
c51f8783 793 u32 bcn_int = data->beacon_int;
79211c8e 794 u64 delta = abs(tsf - now);
45034bfb 795
c51f8783 796 /* adjust after beaconing with new timestamp at old TBTT */
5d26b508
AB		 797 if (tsf > now) {
798 data->tsf_offset += delta;
799 data->bcn_delta = do_div(delta, bcn_int);
800 } else {
801 data->tsf_offset -= delta;
802 data->bcn_delta = -do_div(delta, bcn_int);
803 }
12ce8ba3
JC		 804}
805
acc1e7a3 806static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
e8261171
JB		 807 struct sk_buff *tx_skb,
808 struct ieee80211_channel *chan)
acc1e7a3
JM		 809{
810 struct mac80211_hwsim_data *data = hw->priv;
811 struct sk_buff *skb;
812 struct hwsim_radiotap_hdr *hdr;
813 u16 flags;
814 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
815 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
816
89f44d8c
AK		 817 if (WARN_ON(!txrate))
818 return;
819
acc1e7a3
JM		 820 if (!netif_running(hwsim_mon))
821 return;
822
823 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
824 if (skb == NULL)
825 return;
826
827 hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
828 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
829 hdr->hdr.it_pad = 0;
830 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
f248f105
JM		 831 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
832 (1 << IEEE80211_RADIOTAP_RATE) |
2f40b940 833 (1 << IEEE80211_RADIOTAP_TSFT) |
f248f105 834 (1 << IEEE80211_RADIOTAP_CHANNEL));
2f40b940 835 hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
acc1e7a3
JM		 836 hdr->rt_flags = 0;
837 hdr->rt_rate = txrate->bitrate / 5;
e8261171 838 hdr->rt_channel = cpu_to_le16(chan->center_freq);
acc1e7a3
JM		 839 flags = IEEE80211_CHAN_2GHZ;
840 if (txrate->flags & IEEE80211_RATE_ERP_G)
841 flags |= IEEE80211_CHAN_OFDM;
842 else
843 flags |= IEEE80211_CHAN_CCK;
844 hdr->rt_chbitmask = cpu_to_le16(flags);
845
846 skb->dev = hwsim_mon;
6b163a85 847 skb_reset_mac_header(skb);
acc1e7a3
JM		 848 skb->ip_summed = CHECKSUM_UNNECESSARY;
849 skb->pkt_type = PACKET_OTHERHOST;
f248f105 850 skb->protocol = htons(ETH_P_802_2);
acc1e7a3
JM		 851 memset(skb->cb, 0, sizeof(skb->cb));
852 netif_rx(skb);
853}
854
855
e8261171
JB		 856static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
857 const u8 *addr)
6c085227 858{
6c085227 859 struct sk_buff *skb;
76a56eb3 860 struct hwsim_radiotap_ack_hdr *hdr;
6c085227
JM		 861 u16 flags;
862 struct ieee80211_hdr *hdr11;
863
864 if (!netif_running(hwsim_mon))
865 return;
866
867 skb = dev_alloc_skb(100);
868 if (skb == NULL)
869 return;
870
76a56eb3 871 hdr = (struct hwsim_radiotap_ack_hdr *) skb_put(skb, sizeof(*hdr));
6c085227
JM		 872 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
873 hdr->hdr.it_pad = 0;
874 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
875 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
876 (1 << IEEE80211_RADIOTAP_CHANNEL));
877 hdr->rt_flags = 0;
76a56eb3 878 hdr->pad = 0;
e8261171 879 hdr->rt_channel = cpu_to_le16(chan->center_freq);
6c085227
JM		 880 flags = IEEE80211_CHAN_2GHZ;
881 hdr->rt_chbitmask = cpu_to_le16(flags);
882
883 hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
884 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
885 IEEE80211_STYPE_ACK);
886 hdr11->duration_id = cpu_to_le16(0);
887 memcpy(hdr11->addr1, addr, ETH_ALEN);
888
889 skb->dev = hwsim_mon;
6b163a85 890 skb_reset_mac_header(skb);
6c085227
JM		 891 skb->ip_summed = CHECKSUM_UNNECESSARY;
892 skb->pkt_type = PACKET_OTHERHOST;
893 skb->protocol = htons(ETH_P_802_2);
894 memset(skb->cb, 0, sizeof(skb->cb));
895 netif_rx(skb);
896}
897
3283e286
JB		 898struct mac80211_hwsim_addr_match_data {
899 u8 addr[ETH_ALEN];
900 bool ret;
901};
902
903static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
904 struct ieee80211_vif *vif)
905{
906 struct mac80211_hwsim_addr_match_data *md = data;
907
908 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
909 md->ret = true;
910}
911
912static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
913 const u8 *addr)
914{
915 struct mac80211_hwsim_addr_match_data md = {
916 .ret = false,
917 };
918
339467b9
JB		 919 if (data->scanning && memcmp(addr, data->scan_addr, ETH_ALEN) == 0)
920 return true;
921
3283e286
JB		 922 memcpy(md.addr, addr, ETH_ALEN);
923
924 ieee80211_iterate_active_interfaces_atomic(data->hw,
925 IEEE80211_IFACE_ITER_NORMAL,
926 mac80211_hwsim_addr_iter,
927 &md);
928
929 return md.ret;
930}
6c085227 931
fc6971d4
JM		 932static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
933 struct sk_buff *skb)
934{
935 switch (data->ps) {
936 case PS_DISABLED:
937 return true;
938 case PS_ENABLED:
939 return false;
940 case PS_AUTO_POLL:
941 /* TODO: accept (some) Beacons by default and other frames only
942 * if pending PS-Poll has been sent */
943 return true;
944 case PS_MANUAL_POLL:
945 /* Allow unicast frames to own address if there is a pending
946 * PS-Poll */
947 if (data->ps_poll_pending &&
3283e286 948 mac80211_hwsim_addr_match(data, skb->data + 4)) {
fc6971d4
JM		 949 data->ps_poll_pending = false;
950 return true;
951 }
952 return false;
953 }
954
955 return true;
956}
957
7882513b
JL		 958static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
959 struct sk_buff *my_skb,
15e47304 960 int dst_portid)
7882513b
JL		 961{
962 struct sk_buff *skb;
963 struct mac80211_hwsim_data *data = hw->priv;
964 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
965 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
966 void *msg_head;
967 unsigned int hwsim_flags = 0;
968 int i;
969 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
959eb2fd 970 uintptr_t cookie;
7882513b 971
7882513b
JL		 972 if (data->ps != PS_DISABLED)
973 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
974 /* If the queue contains MAX_QUEUE skb's drop some */
975 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
976 /* Droping until WARN_QUEUE level */
2155c3f8 977 while (skb_queue_len(&data->pending) >= WARN_QUEUE) {
b7bc9679 978 ieee80211_free_txskb(hw, skb_dequeue(&data->pending));
2155c3f8
BG		 979 data->tx_dropped++;
980 }
7882513b
JL		 981 }
982
58050fce 983 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
7882513b
JL		 984 if (skb == NULL)
985 goto nla_put_failure;
986
987 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
988 HWSIM_CMD_FRAME);
989 if (msg_head == NULL) {
990 printk(KERN_DEBUG "mac80211_hwsim: problem with msg_head\n");
991 goto nla_put_failure;
992 }
993
354210f8
BC		 994 if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
995 ETH_ALEN, data->addresses[1].addr))
633c9389 996 goto nla_put_failure;
265dc7f0 997
7882513b 998 /* We get the skb->data */
633c9389
DM		 999 if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
1000 goto nla_put_failure;
7882513b
JL		 1001
1002 /* We get the flags for this transmission, and we translate them to
1003 wmediumd flags */
1004
1005 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
1006 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
1007
1008 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
1009 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
1010
633c9389
DM		 1011 if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
1012 goto nla_put_failure;
7882513b 1013
4f86ed8f
BG		 1014 if (nla_put_u32(skb, HWSIM_ATTR_FREQ, data->channel->center_freq))
1015 goto nla_put_failure;
1016
7882513b
JL		 1017 /* We get the tx control (rate and retries) info*/
1018
1019 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
1020 tx_attempts[i].idx = info->status.rates[i].idx;
1021 tx_attempts[i].count = info->status.rates[i].count;
1022 }
1023
633c9389
DM		 1024 if (nla_put(skb, HWSIM_ATTR_TX_INFO,
1025 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
1026 tx_attempts))
1027 goto nla_put_failure;
7882513b
JL		 1028
1029 /* We create a cookie to identify this skb */
959eb2fd
JB		 1030 data->pending_cookie++;
1031 cookie = data->pending_cookie;
1032 info->rate_driver_data[0] = (void *)cookie;
08f4cbb8 1033 if (nla_put_u64_64bit(skb, HWSIM_ATTR_COOKIE, cookie, HWSIM_ATTR_PAD))
633c9389 1034 goto nla_put_failure;
7882513b
JL		 1035
1036 genlmsg_end(skb, msg_head);
f2831e20
BC		 1037 if (genlmsg_unicast(&init_net, skb, dst_portid))
1038 goto err_free_txskb;
7882513b
JL		 1039
1040 /* Enqueue the packet */
1041 skb_queue_tail(&data->pending, my_skb);
2155c3f8
BG		 1042 data->tx_pkts++;
1043 data->tx_bytes += my_skb->len;
7882513b
JL		 1044 return;
1045
1046nla_put_failure:
f2831e20
BC		 1047 nlmsg_free(skb);
1048err_free_txskb:
c393862f 1049 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
b7bc9679 1050 ieee80211_free_txskb(hw, my_skb);
2155c3f8 1051 data->tx_failed++;
7882513b
JL		 1052}
1053
e8261171
JB		 1054static bool hwsim_chans_compat(struct ieee80211_channel *c1,
1055 struct ieee80211_channel *c2)
1056{
1057 if (!c1 || !c2)
1058 return false;
1059
1060 return c1->center_freq == c2->center_freq;
1061}
1062
1063struct tx_iter_data {
1064 struct ieee80211_channel *channel;
1065 bool receive;
1066};
1067
1068static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
1069 struct ieee80211_vif *vif)
1070{
1071 struct tx_iter_data *data = _data;
1072
1073 if (!vif->chanctx_conf)
1074 return;
1075
1076 if (!hwsim_chans_compat(data->channel,
4bf88530 1077 rcu_dereference(vif->chanctx_conf)->def.chan))
e8261171
JB		 1078 return;
1079
1080 data->receive = true;
1081}
1082
1f7bba79
JB		 1083static void mac80211_hwsim_add_vendor_rtap(struct sk_buff *skb)
1084{
1085 /*
1086 * To enable this code, #define the HWSIM_RADIOTAP_OUI,
1087 * e.g. like this:
1088 * #define HWSIM_RADIOTAP_OUI "\x02\x00\x00"
1089 * (but you should use a valid OUI, not that)
1090 *
1091 * If anyone wants to 'donate' a radiotap OUI/subns code
1092 * please send a patch removing this #ifdef and changing
1093 * the values accordingly.
1094 */
1095#ifdef HWSIM_RADIOTAP_OUI
1096 struct ieee80211_vendor_radiotap *rtap;
1097
1098 /*
1099 * Note that this code requires the headroom in the SKB
1100 * that was allocated earlier.
1101 */
1102 rtap = (void *)skb_push(skb, sizeof(*rtap) + 8 + 4);
1103 rtap->oui[0] = HWSIM_RADIOTAP_OUI[0];
1104 rtap->oui[1] = HWSIM_RADIOTAP_OUI[1];
1105 rtap->oui[2] = HWSIM_RADIOTAP_OUI[2];
1106 rtap->subns = 127;
1107
1108 /*
1109 * Radiotap vendor namespaces can (and should) also be
1110 * split into fields by using the standard radiotap
1111 * presence bitmap mechanism. Use just BIT(0) here for
1112 * the presence bitmap.
1113 */
1114 rtap->present = BIT(0);
1115 /* We have 8 bytes of (dummy) data */
1116 rtap->len = 8;
1117 /* For testing, also require it to be aligned */
1118 rtap->align = 8;
1119 /* And also test that padding works, 4 bytes */
1120 rtap->pad = 4;
1121 /* push the data */
1122 memcpy(rtap->data, "ABCDEFGH", 8);
1123 /* make sure to clear padding, mac80211 doesn't */
1124 memset(rtap->data + 8, 0, 4);
1125
1126 IEEE80211_SKB_RXCB(skb)->flag |= RX_FLAG_RADIOTAP_VENDOR_DATA;
1127#endif
1128}
1129
7882513b 1130static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
e8261171
JB		 1131 struct sk_buff *skb,
1132 struct ieee80211_channel *chan)
acc1e7a3 1133{
0e057d73
JB		 1134 struct mac80211_hwsim_data *data = hw->priv, *data2;
1135 bool ack = false;
e36cfdc9 1136 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
acc1e7a3 1137 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
e36cfdc9 1138 struct ieee80211_rx_status rx_status;
b66851c3 1139 u64 now;
acc1e7a3
JM		 1140
1141 memset(&rx_status, 0, sizeof(rx_status));
f4bda337 1142 rx_status.flag |= RX_FLAG_MACTIME_START;
e8261171
JB		 1143 rx_status.freq = chan->center_freq;
1144 rx_status.band = chan->band;
dad6330d
KB		 1145 if (info->control.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) {
1146 rx_status.rate_idx =
1147 ieee80211_rate_get_vht_mcs(&info->control.rates[0]);
1148 rx_status.vht_nss =
1149 ieee80211_rate_get_vht_nss(&info->control.rates[0]);
1150 rx_status.flag |= RX_FLAG_VHT;
1151 } else {
1152 rx_status.rate_idx = info->control.rates[0].idx;
1153 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
1154 rx_status.flag |= RX_FLAG_HT;
1155 }
281ed297
JM		 1156 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
1157 rx_status.flag |= RX_FLAG_40MHZ;
1158 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
1159 rx_status.flag |= RX_FLAG_SHORT_GI;
4b14c96d 1160 /* TODO: simulate real signal strength (and optional packet loss) */
bdd7bd16 1161 rx_status.signal = data->power_level - 50;
acc1e7a3 1162
fc6971d4
JM		 1163 if (data->ps != PS_DISABLED)
1164 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1165
90e3012e
JB		 1166 /* release the skb's source info */
1167 skb_orphan(skb);
c0acf38e 1168 skb_dst_drop(skb);
90e3012e
JB		 1169 skb->mark = 0;
1170 secpath_reset(skb);
1171 nf_reset(skb);
1172
b66851c3
TP		 1173 /*
1174 * Get absolute mactime here so all HWs RX at the "same time", and
1175 * absolute TX time for beacon mactime so the timestamp matches.
1176 * Giving beacons a different mactime than non-beacons looks messy, but
1177 * it helps the Toffset be exact and a ~10us mactime discrepancy
1178 * probably doesn't really matter.
1179 */
1180 if (ieee80211_is_beacon(hdr->frame_control) ||
1181 ieee80211_is_probe_resp(hdr->frame_control))
1182 now = data->abs_bcn_ts;
1183 else
1184 now = mac80211_hwsim_get_tsf_raw();
1185
acc1e7a3 1186 /* Copy skb to all enabled radios that are on the current frequency */
0e057d73
JB		 1187 spin_lock(&hwsim_radio_lock);
1188 list_for_each_entry(data2, &hwsim_radios, list) {
acc1e7a3 1189 struct sk_buff *nskb;
e8261171
JB		 1190 struct tx_iter_data tx_iter_data = {
1191 .receive = false,
1192 .channel = chan,
1193 };
acc1e7a3 1194
0e057d73 1195 if (data == data2)
acc1e7a3 1196 continue;
0e057d73 1197
e8261171
JB		 1198 if (!data2->started || (data2->idle && !data2->tmp_chan) ||
1199 !hwsim_ps_rx_ok(data2, skb))
acc1e7a3
JM		 1200 continue;
1201
e8261171
JB		 1202 if (!(data->group & data2->group))
1203 continue;
1204
1205 if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
1206 !hwsim_chans_compat(chan, data2->channel)) {
1207 ieee80211_iterate_active_interfaces_atomic(
8b2c9824
JB		 1208 data2->hw, IEEE80211_IFACE_ITER_NORMAL,
1209 mac80211_hwsim_tx_iter, &tx_iter_data);
e8261171
JB		 1210 if (!tx_iter_data.receive)
1211 continue;
1212 }
1213
90b9e446
JB		 1214 /*
1215 * reserve some space for our vendor and the normal
1216 * radiotap header, since we're copying anyway
1217 */
a357d7f9
JB		 1218 if (skb->len < PAGE_SIZE && paged_rx) {
1219 struct page *page = alloc_page(GFP_ATOMIC);
1220
1221 if (!page)
1222 continue;
1223
1224 nskb = dev_alloc_skb(128);
1225 if (!nskb) {
1226 __free_page(page);
1227 continue;
1228 }
1229
1230 memcpy(page_address(page), skb->data, skb->len);
1231 skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
1232 } else {
1233 nskb = skb_copy(skb, GFP_ATOMIC);
1234 if (!nskb)
1235 continue;
1236 }
acc1e7a3 1237
265dc7f0 1238 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
0e057d73 1239 ack = true;
f483ad25 1240
b66851c3 1241 rx_status.mactime = now + data2->tsf_offset;
90b9e446 1242
f1d58c25 1243 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
1f7bba79
JB		 1244
1245 mac80211_hwsim_add_vendor_rtap(nskb);
1246
2155c3f8
BG		 1247 data2->rx_pkts++;
1248 data2->rx_bytes += nskb->len;
f1d58c25 1249 ieee80211_rx_irqsafe(data2->hw, nskb);
acc1e7a3 1250 }
0e057d73 1251 spin_unlock(&hwsim_radio_lock);
acc1e7a3 1252
e36cfdc9
JM		 1253 return ack;
1254}
1255
36323f81
TH		 1256static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
1257 struct ieee80211_tx_control *control,
1258 struct sk_buff *skb)
e36cfdc9 1259{
e8261171
JB		 1260 struct mac80211_hwsim_data *data = hw->priv;
1261 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
732b5395 1262 struct ieee80211_hdr *hdr = (void *)skb->data;
e8261171
JB		 1263 struct ieee80211_chanctx_conf *chanctx_conf;
1264 struct ieee80211_channel *channel;
0e057d73 1265 bool ack;
15e47304 1266 u32 _portid;
e36cfdc9 1267
e8261171 1268 if (WARN_ON(skb->len < 10)) {
e36cfdc9 1269 /* Should not happen; just a sanity check for addr1 use */
fe0f3cd2 1270 ieee80211_free_txskb(hw, skb);
7bb45683 1271 return;
e36cfdc9
JM		 1272 }
1273
361c3e04 1274 if (!data->use_chanctx) {
e8261171
JB		 1275 channel = data->channel;
1276 } else if (txi->hw_queue == 4) {
1277 channel = data->tmp_chan;
1278 } else {
1279 chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf);
1280 if (chanctx_conf)
4bf88530 1281 channel = chanctx_conf->def.chan;
e8261171
JB		 1282 else
1283 channel = NULL;
1284 }
1285
1286 if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
fe0f3cd2 1287 ieee80211_free_txskb(hw, skb);
e8261171
JB		 1288 return;
1289 }
1290
1291 if (data->idle && !data->tmp_chan) {
1292 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
fe0f3cd2 1293 ieee80211_free_txskb(hw, skb);
e8261171
JB		 1294 return;
1295 }
1296
1297 if (txi->control.vif)
1298 hwsim_check_magic(txi->control.vif);
1299 if (control->sta)
1300 hwsim_check_sta_magic(control->sta);
1301
30686bf7 1302 if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE))
1eb32179
KB		 1303 ieee80211_get_tx_rates(txi->control.vif, control->sta, skb,
1304 txi->control.rates,
1305 ARRAY_SIZE(txi->control.rates));
e8261171 1306
1eb32179 1307 txi->rate_driver_data[0] = channel;
732b5395
JM		 1308
1309 if (skb->len >= 24 + 8 &&
1310 ieee80211_is_probe_resp(hdr->frame_control)) {
1311 /* fake header transmission time */
1312 struct ieee80211_mgmt *mgmt;
1313 struct ieee80211_rate *txrate;
1314 u64 ts;
1315
1316 mgmt = (struct ieee80211_mgmt *)skb->data;
1317 txrate = ieee80211_get_tx_rate(hw, txi);
1318 ts = mac80211_hwsim_get_tsf_raw();
1319 mgmt->u.probe_resp.timestamp =
1320 cpu_to_le64(ts + data->tsf_offset +
1321 24 * 8 * 10 / txrate->bitrate);
1322 }
1323
e8261171
JB		 1324 mac80211_hwsim_monitor_rx(hw, skb, channel);
1325
7882513b 1326 /* wmediumd mode check */
15e47304 1327 _portid = ACCESS_ONCE(wmediumd_portid);
7882513b 1328
15e47304
EB		 1329 if (_portid)
1330 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
7882513b
JL		 1331
1332 /* NO wmediumd detected, perfect medium simulation */
2155c3f8
BG		 1333 data->tx_pkts++;
1334 data->tx_bytes += skb->len;
e8261171 1335 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
7882513b 1336
f06b7ab8 1337 if (ack && skb->len >= 16)
e8261171 1338 mac80211_hwsim_monitor_ack(channel, hdr->addr2);
e36cfdc9 1339
e6a9854b 1340 ieee80211_tx_info_clear_status(txi);
2a4ffa4c
JC		 1341
1342 /* frame was transmitted at most favorable rate at first attempt */
1343 txi->control.rates[0].count = 1;
1344 txi->control.rates[1].idx = -1;
1345
e6a9854b
JB		 1346 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
1347 txi->flags |= IEEE80211_TX_STAT_ACK;
acc1e7a3 1348 ieee80211_tx_status_irqsafe(hw, skb);
acc1e7a3
JM		 1349}
1350
1351
1352static int mac80211_hwsim_start(struct ieee80211_hw *hw)
1353{
1354 struct mac80211_hwsim_data *data = hw->priv;
c96c31e4 1355 wiphy_debug(hw->wiphy, "%s\n", __func__);
3db1cd5c 1356 data->started = true;
acc1e7a3
JM		 1357 return 0;
1358}
1359
1360
1361static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
1362{
1363 struct mac80211_hwsim_data *data = hw->priv;
3db1cd5c 1364 data->started = false;
01e59e46 1365 tasklet_hrtimer_cancel(&data->beacon_timer);
c96c31e4 1366 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 1367}
1368
1369
1370static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
1ed32e4f 1371 struct ieee80211_vif *vif)
acc1e7a3 1372{
c96c31e4 1373 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 1374 __func__, ieee80211_vif_type_p2p(vif),
1375 vif->addr);
1ed32e4f 1376 hwsim_set_magic(vif);
e8261171
JB		 1377
1378 vif->cab_queue = 0;
1379 vif->hw_queue[IEEE80211_AC_VO] = 0;
1380 vif->hw_queue[IEEE80211_AC_VI] = 1;
1381 vif->hw_queue[IEEE80211_AC_BE] = 2;
1382 vif->hw_queue[IEEE80211_AC_BK] = 3;
1383
acc1e7a3
JM		 1384 return 0;
1385}
1386
1387
c35d0270
JB		 1388static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
1389 struct ieee80211_vif *vif,
2ca27bcf
JB		 1390 enum nl80211_iftype newtype,
1391 bool newp2p)
c35d0270 1392{
2ca27bcf 1393 newtype = ieee80211_iftype_p2p(newtype, newp2p);
c35d0270
JB		 1394 wiphy_debug(hw->wiphy,
1395 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
2ca27bcf
JB		 1396 __func__, ieee80211_vif_type_p2p(vif),
1397 newtype, vif->addr);
c35d0270
JB		 1398 hwsim_check_magic(vif);
1399
3eb92f6a
JB		 1400 /*
1401 * interface may change from non-AP to AP in
1402 * which case this needs to be set up again
1403 */
1404 vif->cab_queue = 0;
1405
c35d0270
JB		 1406 return 0;
1407}
1408
acc1e7a3 1409static void mac80211_hwsim_remove_interface(
1ed32e4f 1410 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
acc1e7a3 1411{
c96c31e4 1412 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 1413 __func__, ieee80211_vif_type_p2p(vif),
1414 vif->addr);
1ed32e4f
JB		 1415 hwsim_check_magic(vif);
1416 hwsim_clear_magic(vif);
acc1e7a3
JM		 1417}
1418
e8261171
JB		 1419static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
1420 struct sk_buff *skb,
1421 struct ieee80211_channel *chan)
1422{
1423 u32 _pid = ACCESS_ONCE(wmediumd_portid);
1424
30686bf7 1425 if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE)) {
1eb32179
KB		 1426 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1427 ieee80211_get_tx_rates(txi->control.vif, NULL, skb,
1428 txi->control.rates,
1429 ARRAY_SIZE(txi->control.rates));
1430 }
1431
e8261171
JB		 1432 mac80211_hwsim_monitor_rx(hw, skb, chan);
1433
1434 if (_pid)
1435 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
1436
1437 mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
1438 dev_kfree_skb(skb);
1439}
acc1e7a3
JM		 1440
1441static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
1442 struct ieee80211_vif *vif)
1443{
b66851c3
TP		 1444 struct mac80211_hwsim_data *data = arg;
1445 struct ieee80211_hw *hw = data->hw;
1446 struct ieee80211_tx_info *info;
1447 struct ieee80211_rate *txrate;
1448 struct ieee80211_mgmt *mgmt;
acc1e7a3 1449 struct sk_buff *skb;
acc1e7a3 1450
8aa21e6f
JB		 1451 hwsim_check_magic(vif);
1452
55b39619 1453 if (vif->type != NL80211_IFTYPE_AP &&
2b2d7795
JB		 1454 vif->type != NL80211_IFTYPE_MESH_POINT &&
1455 vif->type != NL80211_IFTYPE_ADHOC)
acc1e7a3
JM		 1456 return;
1457
1458 skb = ieee80211_beacon_get(hw, vif);
1459 if (skb == NULL)
1460 return;
b66851c3 1461 info = IEEE80211_SKB_CB(skb);
30686bf7 1462 if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE))
1eb32179
KB		 1463 ieee80211_get_tx_rates(vif, NULL, skb,
1464 info->control.rates,
1465 ARRAY_SIZE(info->control.rates));
1466
b66851c3
TP		 1467 txrate = ieee80211_get_tx_rate(hw, info);
1468
1469 mgmt = (struct ieee80211_mgmt *) skb->data;
1470 /* fake header transmission time */
1471 data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
1472 mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
1473 data->tsf_offset +
1474 24 * 8 * 10 / txrate->bitrate);
7882513b 1475
e8261171 1476 mac80211_hwsim_tx_frame(hw, skb,
4bf88530 1477 rcu_dereference(vif->chanctx_conf)->def.chan);
0037db63
AO		 1478
1479 if (vif->csa_active && ieee80211_csa_is_complete(vif))
1480 ieee80211_csa_finish(vif);
acc1e7a3
JM		 1481}
1482
01e59e46
TP		 1483static enum hrtimer_restart
1484mac80211_hwsim_beacon(struct hrtimer *timer)
acc1e7a3 1485{
01e59e46
TP		 1486 struct mac80211_hwsim_data *data =
1487 container_of(timer, struct mac80211_hwsim_data,
1488 beacon_timer.timer);
1489 struct ieee80211_hw *hw = data->hw;
1490 u64 bcn_int = data->beacon_int;
1491 ktime_t next_bcn;
acc1e7a3 1492
4c4c671a 1493 if (!data->started)
01e59e46 1494 goto out;
acc1e7a3 1495
f248f105 1496 ieee80211_iterate_active_interfaces_atomic(
8b2c9824 1497 hw, IEEE80211_IFACE_ITER_NORMAL,
b66851c3 1498 mac80211_hwsim_beacon_tx, data);
acc1e7a3 1499
c51f8783
TP		 1500 /* beacon at new TBTT + beacon interval */
1501 if (data->bcn_delta) {
1502 bcn_int -= data->bcn_delta;
1503 data->bcn_delta = 0;
1504 }
1505
01e59e46
TP		 1506 next_bcn = ktime_add(hrtimer_get_expires(timer),
1507 ns_to_ktime(bcn_int * 1000));
1508 tasklet_hrtimer_start(&data->beacon_timer, next_bcn, HRTIMER_MODE_ABS);
1509out:
1510 return HRTIMER_NORESTART;
acc1e7a3
JM		 1511}
1512
675a0b04
KB		 1513static const char * const hwsim_chanwidths[] = {
1514 [NL80211_CHAN_WIDTH_20_NOHT] = "noht",
1515 [NL80211_CHAN_WIDTH_20] = "ht20",
1516 [NL80211_CHAN_WIDTH_40] = "ht40",
1517 [NL80211_CHAN_WIDTH_80] = "vht80",
1518 [NL80211_CHAN_WIDTH_80P80] = "vht80p80",
1519 [NL80211_CHAN_WIDTH_160] = "vht160",
0aaffa9b 1520};
acc1e7a3 1521
e8975581 1522static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
acc1e7a3
JM		 1523{
1524 struct mac80211_hwsim_data *data = hw->priv;
e8975581 1525 struct ieee80211_conf *conf = &hw->conf;
0f78231b
JB		 1526 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
1527 [IEEE80211_SMPS_AUTOMATIC] = "auto",
1528 [IEEE80211_SMPS_OFF] = "off",
1529 [IEEE80211_SMPS_STATIC] = "static",
1530 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
1531 };
1532
675a0b04
KB		 1533 if (conf->chandef.chan)
1534 wiphy_debug(hw->wiphy,
1535 "%s (freq=%d(%d - %d)/%s idle=%d ps=%d smps=%s)\n",
1536 __func__,
1537 conf->chandef.chan->center_freq,
1538 conf->chandef.center_freq1,
1539 conf->chandef.center_freq2,
1540 hwsim_chanwidths[conf->chandef.width],
1541 !!(conf->flags & IEEE80211_CONF_IDLE),
1542 !!(conf->flags & IEEE80211_CONF_PS),
1543 smps_modes[conf->smps_mode]);
1544 else
1545 wiphy_debug(hw->wiphy,
1546 "%s (freq=0 idle=%d ps=%d smps=%s)\n",
1547 __func__,
1548 !!(conf->flags & IEEE80211_CONF_IDLE),
1549 !!(conf->flags & IEEE80211_CONF_PS),
1550 smps_modes[conf->smps_mode]);
acc1e7a3 1551
70541839
JM		 1552 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1553
675a0b04 1554 data->channel = conf->chandef.chan;
e8261171 1555
361c3e04 1556 WARN_ON(data->channel && data->use_chanctx);
e8261171 1557
bdd7bd16 1558 data->power_level = conf->power_level;
4c4c671a 1559 if (!data->started || !data->beacon_int)
01e59e46
TP		 1560 tasklet_hrtimer_cancel(&data->beacon_timer);
1561 else if (!hrtimer_is_queued(&data->beacon_timer.timer)) {
c51f8783
TP		 1562 u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
1563 u32 bcn_int = data->beacon_int;
1564 u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1565
01e59e46 1566 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1567 ns_to_ktime(until_tbtt * 1000),
01e59e46
TP		 1568 HRTIMER_MODE_REL);
1569 }
acc1e7a3
JM		 1570
1571 return 0;
1572}
1573
1574
1575static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
1576 unsigned int changed_flags,
3ac64bee 1577 unsigned int *total_flags,u64 multicast)
acc1e7a3
JM		 1578{
1579 struct mac80211_hwsim_data *data = hw->priv;
1580
c96c31e4 1581 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 1582
1583 data->rx_filter = 0;
acc1e7a3
JM		 1584 if (*total_flags & FIF_ALLMULTI)
1585 data->rx_filter |= FIF_ALLMULTI;
1586
1587 *total_flags = data->rx_filter;
1588}
1589
0bb861e6
JM		 1590static void mac80211_hwsim_bcn_en_iter(void *data, u8 *mac,
1591 struct ieee80211_vif *vif)
1592{
1593 unsigned int *count = data;
1594 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1595
1596 if (vp->bcn_en)
1597 (*count)++;
1598}
1599
8aa21e6f
JB		 1600static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
1601 struct ieee80211_vif *vif,
1602 struct ieee80211_bss_conf *info,
1603 u32 changed)
1604{
fc6971d4 1605 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
57c4d7b4 1606 struct mac80211_hwsim_data *data = hw->priv;
fc6971d4 1607
8aa21e6f 1608 hwsim_check_magic(vif);
fe63bfa3 1609
0bb861e6
JM		 1610 wiphy_debug(hw->wiphy, "%s(changed=0x%x vif->addr=%pM)\n",
1611 __func__, changed, vif->addr);
fe63bfa3 1612
2d0ddec5 1613 if (changed & BSS_CHANGED_BSSID) {
c96c31e4
JP		 1614 wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
1615 __func__, info->bssid);
2d0ddec5
JB		 1616 memcpy(vp->bssid, info->bssid, ETH_ALEN);
1617 }
1618
fe63bfa3 1619 if (changed & BSS_CHANGED_ASSOC) {
c96c31e4
JP		 1620 wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
1621 info->assoc, info->aid);
fc6971d4
JM		 1622 vp->assoc = info->assoc;
1623 vp->aid = info->aid;
fe63bfa3
JM		 1624 }
1625
01e59e46 1626 if (changed & BSS_CHANGED_BEACON_ENABLED) {
56067628
JB		 1627 wiphy_debug(hw->wiphy, " BCN EN: %d (BI=%u)\n",
1628 info->enable_beacon, info->beacon_int);
0bb861e6 1629 vp->bcn_en = info->enable_beacon;
01e59e46
TP		 1630 if (data->started &&
1631 !hrtimer_is_queued(&data->beacon_timer.timer) &&
1632 info->enable_beacon) {
c51f8783
TP		 1633 u64 tsf, until_tbtt;
1634 u32 bcn_int;
56067628 1635 data->beacon_int = info->beacon_int * 1024;
c51f8783
TP		 1636 tsf = mac80211_hwsim_get_tsf(hw, vif);
1637 bcn_int = data->beacon_int;
1638 until_tbtt = bcn_int - do_div(tsf, bcn_int);
01e59e46 1639 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1640 ns_to_ktime(until_tbtt * 1000),
01e59e46 1641 HRTIMER_MODE_REL);
0bb861e6
JM		 1642 } else if (!info->enable_beacon) {
1643 unsigned int count = 0;
cdb1b805 1644 ieee80211_iterate_active_interfaces_atomic(
0bb861e6
JM		 1645 data->hw, IEEE80211_IFACE_ITER_NORMAL,
1646 mac80211_hwsim_bcn_en_iter, &count);
1647 wiphy_debug(hw->wiphy, " beaconing vifs remaining: %u",
1648 count);
56067628 1649 if (count == 0) {
0bb861e6 1650 tasklet_hrtimer_cancel(&data->beacon_timer);
56067628
JB		 1651 data->beacon_int = 0;
1652 }
0bb861e6 1653 }
57c4d7b4
JB		 1654 }
1655
fe63bfa3 1656 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
c96c31e4
JP		 1657 wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
1658 info->use_cts_prot);
fe63bfa3
JM		 1659 }
1660
1661 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
c96c31e4
JP		 1662 wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
1663 info->use_short_preamble);
fe63bfa3
JM		 1664 }
1665
1666 if (changed & BSS_CHANGED_ERP_SLOT) {
c96c31e4 1667 wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
fe63bfa3
JM		 1668 }
1669
1670 if (changed & BSS_CHANGED_HT) {
4bf88530
JB		 1671 wiphy_debug(hw->wiphy, " HT: op_mode=0x%x\n",
1672 info->ht_operation_mode);
fe63bfa3
JM		 1673 }
1674
1675 if (changed & BSS_CHANGED_BASIC_RATES) {
c96c31e4
JP		 1676 wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
1677 (unsigned long long) info->basic_rates);
fe63bfa3 1678 }
cbc668a7
JB		 1679
1680 if (changed & BSS_CHANGED_TXPOWER)
1681 wiphy_debug(hw->wiphy, " TX Power: %d dBm\n", info->txpower);
8aa21e6f
JB		 1682}
1683
1d669cbf
JB		 1684static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
1685 struct ieee80211_vif *vif,
1686 struct ieee80211_sta *sta)
1687{
1688 hwsim_check_magic(vif);
1689 hwsim_set_sta_magic(sta);
1690
1691 return 0;
1692}
1693
1694static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
1695 struct ieee80211_vif *vif,
1696 struct ieee80211_sta *sta)
1697{
1698 hwsim_check_magic(vif);
1699 hwsim_clear_sta_magic(sta);
1700
1701 return 0;
1702}
1703
8aa21e6f
JB		 1704static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
1705 struct ieee80211_vif *vif,
17741cdc
JB		 1706 enum sta_notify_cmd cmd,
1707 struct ieee80211_sta *sta)
8aa21e6f
JB		 1708{
1709 hwsim_check_magic(vif);
1d669cbf 1710
81c06523 1711 switch (cmd) {
89fad578
CL		 1712 case STA_NOTIFY_SLEEP:
1713 case STA_NOTIFY_AWAKE:
1714 /* TODO: make good use of these flags */
1715 break;
1d669cbf
JB		 1716 default:
1717 WARN(1, "Invalid sta notify: %d\n", cmd);
1718 break;
81c06523
JB		 1719 }
1720}
1721
1722static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
1723 struct ieee80211_sta *sta,
1724 bool set)
1725{
1726 hwsim_check_sta_magic(sta);
1727 return 0;
8aa21e6f 1728}
acc1e7a3 1729
1e898ff8 1730static int mac80211_hwsim_conf_tx(
8a3a3c85
EP		 1731 struct ieee80211_hw *hw,
1732 struct ieee80211_vif *vif, u16 queue,
1e898ff8
JM		 1733 const struct ieee80211_tx_queue_params *params)
1734{
c96c31e4
JP		 1735 wiphy_debug(hw->wiphy,
1736 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1737 __func__, queue,
1738 params->txop, params->cw_min,
1739 params->cw_max, params->aifs);
1e898ff8
JM		 1740 return 0;
1741}
1742
1289723e
HS		 1743static int mac80211_hwsim_get_survey(
1744 struct ieee80211_hw *hw, int idx,
1745 struct survey_info *survey)
1746{
1747 struct ieee80211_conf *conf = &hw->conf;
1748
c96c31e4 1749 wiphy_debug(hw->wiphy, "%s (idx=%d)\n", __func__, idx);
1289723e
HS		 1750
1751 if (idx != 0)
1752 return -ENOENT;
1753
1754 /* Current channel */
675a0b04 1755 survey->channel = conf->chandef.chan;
1289723e
HS		 1756
1757 /*
1758 * Magically conjured noise level --- this is only ok for simulated hardware.
1759 *
1760 * A real driver which cannot determine the real channel noise MUST NOT
1761 * report any noise, especially not a magically conjured one :-)
1762 */
1763 survey->filled = SURVEY_INFO_NOISE_DBM;
1764 survey->noise = -92;
1765
1766 return 0;
1767}
1768
aff89a9b
JB		 1769#ifdef CONFIG_NL80211_TESTMODE
1770/*
1771 * This section contains example code for using netlink
1772 * attributes with the testmode command in nl80211.
1773 */
1774
1775/* These enums need to be kept in sync with userspace */
1776enum hwsim_testmode_attr {
1777 __HWSIM_TM_ATTR_INVALID = 0,
1778 HWSIM_TM_ATTR_CMD = 1,
1779 HWSIM_TM_ATTR_PS = 2,
1780
1781 /* keep last */
1782 __HWSIM_TM_ATTR_AFTER_LAST,
1783 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1784};
1785
1786enum hwsim_testmode_cmd {
1787 HWSIM_TM_CMD_SET_PS = 0,
1788 HWSIM_TM_CMD_GET_PS = 1,
4d6d0ae2
JB		 1789 HWSIM_TM_CMD_STOP_QUEUES = 2,
1790 HWSIM_TM_CMD_WAKE_QUEUES = 3,
aff89a9b
JB		 1791};
1792
1793static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1794 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1795 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1796};
1797
5bc38193 1798static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
52981cd7 1799 struct ieee80211_vif *vif,
5bc38193 1800 void *data, int len)
aff89a9b
JB		 1801{
1802 struct mac80211_hwsim_data *hwsim = hw->priv;
1803 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1804 struct sk_buff *skb;
1805 int err, ps;
1806
1807 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
1808 hwsim_testmode_policy);
1809 if (err)
1810 return err;
1811
1812 if (!tb[HWSIM_TM_ATTR_CMD])
1813 return -EINVAL;
1814
1815 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1816 case HWSIM_TM_CMD_SET_PS:
1817 if (!tb[HWSIM_TM_ATTR_PS])
1818 return -EINVAL;
1819 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1820 return hwsim_fops_ps_write(hwsim, ps);
1821 case HWSIM_TM_CMD_GET_PS:
1822 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1823 nla_total_size(sizeof(u32)));
1824 if (!skb)
1825 return -ENOMEM;
633c9389
DM		 1826 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
1827 goto nla_put_failure;
aff89a9b 1828 return cfg80211_testmode_reply(skb);
4d6d0ae2
JB		 1829 case HWSIM_TM_CMD_STOP_QUEUES:
1830 ieee80211_stop_queues(hw);
1831 return 0;
1832 case HWSIM_TM_CMD_WAKE_QUEUES:
1833 ieee80211_wake_queues(hw);
1834 return 0;
aff89a9b
JB		 1835 default:
1836 return -EOPNOTSUPP;
1837 }
1838
1839 nla_put_failure:
1840 kfree_skb(skb);
1841 return -ENOBUFS;
1842}
1843#endif
1844
8b73d13a
JB		 1845static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1846 struct ieee80211_vif *vif,
50ea05ef 1847 struct ieee80211_ampdu_params *params)
8b73d13a 1848{
50ea05ef
SS		 1849 struct ieee80211_sta *sta = params->sta;
1850 enum ieee80211_ampdu_mlme_action action = params->action;
1851 u16 tid = params->tid;
1852
8b73d13a
JB		 1853 switch (action) {
1854 case IEEE80211_AMPDU_TX_START:
1855 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1856 break;
18b559d5
JB		 1857 case IEEE80211_AMPDU_TX_STOP_CONT:
1858 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1859 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
8b73d13a
JB		 1860 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1861 break;
1862 case IEEE80211_AMPDU_TX_OPERATIONAL:
1863 break;
1864 case IEEE80211_AMPDU_RX_START:
1865 case IEEE80211_AMPDU_RX_STOP:
1866 break;
1867 default:
1868 return -EOPNOTSUPP;
1869 }
1870
1871 return 0;
1872}
1873
77be2c54
EG		 1874static void mac80211_hwsim_flush(struct ieee80211_hw *hw,
1875 struct ieee80211_vif *vif,
1876 u32 queues, bool drop)
a80f7c0b 1877{
7882513b 1878 /* Not implemented, queues only on kernel side */
a80f7c0b
JB		 1879}
1880
e8261171 1881static void hw_scan_work(struct work_struct *work)
69068036 1882{
e8261171
JB		 1883 struct mac80211_hwsim_data *hwsim =
1884 container_of(work, struct mac80211_hwsim_data, hw_scan.work);
1885 struct cfg80211_scan_request *req = hwsim->hw_scan_request;
1886 int dwell, i;
69068036 1887
e8261171
JB		 1888 mutex_lock(&hwsim->mutex);
1889 if (hwsim->scan_chan_idx >= req->n_channels) {
1890 wiphy_debug(hwsim->hw->wiphy, "hw scan complete\n");
1891 ieee80211_scan_completed(hwsim->hw, false);
1892 hwsim->hw_scan_request = NULL;
1893 hwsim->hw_scan_vif = NULL;
1894 hwsim->tmp_chan = NULL;
1895 mutex_unlock(&hwsim->mutex);
1896 return;
1897 }
1898
1899 wiphy_debug(hwsim->hw->wiphy, "hw scan %d MHz\n",
1900 req->channels[hwsim->scan_chan_idx]->center_freq);
1901
1902 hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
a8e828de
JB		 1903 if (hwsim->tmp_chan->flags & (IEEE80211_CHAN_NO_IR |
1904 IEEE80211_CHAN_RADAR) ||
e8261171
JB		 1905 !req->n_ssids) {
1906 dwell = 120;
1907 } else {
1908 dwell = 30;
1909 /* send probes */
1910 for (i = 0; i < req->n_ssids; i++) {
1911 struct sk_buff *probe;
12880d16 1912 struct ieee80211_mgmt *mgmt;
e8261171
JB		 1913
1914 probe = ieee80211_probereq_get(hwsim->hw,
339467b9 1915 hwsim->scan_addr,
e8261171
JB		 1916 req->ssids[i].ssid,
1917 req->ssids[i].ssid_len,
b9a9ada1 1918 req->ie_len);
e8261171
JB		 1919 if (!probe)
1920 continue;
b9a9ada1 1921
12880d16
JM		 1922 mgmt = (struct ieee80211_mgmt *) probe->data;
1923 memcpy(mgmt->da, req->bssid, ETH_ALEN);
1924 memcpy(mgmt->bssid, req->bssid, ETH_ALEN);
1925
b9a9ada1
JB		 1926 if (req->ie_len)
1927 memcpy(skb_put(probe, req->ie_len), req->ie,
1928 req->ie_len);
1929
e8261171
JB		 1930 local_bh_disable();
1931 mac80211_hwsim_tx_frame(hwsim->hw, probe,
1932 hwsim->tmp_chan);
1933 local_bh_enable();
1934 }
1935 }
1936 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
1937 msecs_to_jiffies(dwell));
1938 hwsim->scan_chan_idx++;
1939 mutex_unlock(&hwsim->mutex);
69068036
JB		 1940}
1941
1942static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
a060bbfe 1943 struct ieee80211_vif *vif,
c56ef672 1944 struct ieee80211_scan_request *hw_req)
69068036 1945{
e8261171 1946 struct mac80211_hwsim_data *hwsim = hw->priv;
c56ef672 1947 struct cfg80211_scan_request *req = &hw_req->req;
69068036 1948
e8261171
JB		 1949 mutex_lock(&hwsim->mutex);
1950 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1951 mutex_unlock(&hwsim->mutex);
1952 return -EBUSY;
1953 }
1954 hwsim->hw_scan_request = req;
1955 hwsim->hw_scan_vif = vif;
1956 hwsim->scan_chan_idx = 0;
339467b9
JB		 1957 if (req->flags & NL80211_SCAN_FLAG_RANDOM_ADDR)
1958 get_random_mask_addr(hwsim->scan_addr,
1959 hw_req->req.mac_addr,
1960 hw_req->req.mac_addr_mask);
1961 else
1962 memcpy(hwsim->scan_addr, vif->addr, ETH_ALEN);
e8261171 1963 mutex_unlock(&hwsim->mutex);
69068036 1964
e8261171 1965 wiphy_debug(hw->wiphy, "hwsim hw_scan request\n");
69068036 1966
e8261171 1967 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
69068036
JB		 1968
1969 return 0;
1970}
1971
e8261171
JB		 1972static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
1973 struct ieee80211_vif *vif)
1974{
1975 struct mac80211_hwsim_data *hwsim = hw->priv;
1976
1977 wiphy_debug(hw->wiphy, "hwsim cancel_hw_scan\n");
1978
1979 cancel_delayed_work_sync(&hwsim->hw_scan);
1980
1981 mutex_lock(&hwsim->mutex);
1982 ieee80211_scan_completed(hwsim->hw, true);
1983 hwsim->tmp_chan = NULL;
1984 hwsim->hw_scan_request = NULL;
1985 hwsim->hw_scan_vif = NULL;
1986 mutex_unlock(&hwsim->mutex);
1987}
1988
a344d677
JB		 1989static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw,
1990 struct ieee80211_vif *vif,
1991 const u8 *mac_addr)
f74cb0f7
LR		 1992{
1993 struct mac80211_hwsim_data *hwsim = hw->priv;
1994
1995 mutex_lock(&hwsim->mutex);
1996
1997 if (hwsim->scanning) {
1998 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
1999 goto out;
2000 }
2001
2002 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
339467b9
JB		 2003
2004 memcpy(hwsim->scan_addr, mac_addr, ETH_ALEN);
f74cb0f7
LR		 2005 hwsim->scanning = true;
2006
2007out:
2008 mutex_unlock(&hwsim->mutex);
2009}
2010
a344d677
JB		 2011static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw,
2012 struct ieee80211_vif *vif)
f74cb0f7
LR		 2013{
2014 struct mac80211_hwsim_data *hwsim = hw->priv;
2015
2016 mutex_lock(&hwsim->mutex);
2017
2018 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
23ff98fc 2019 hwsim->scanning = false;
93803b33 2020 eth_zero_addr(hwsim->scan_addr);
f74cb0f7
LR		 2021
2022 mutex_unlock(&hwsim->mutex);
2023}
2024
661ef475
JB		 2025static void hw_roc_start(struct work_struct *work)
2026{
2027 struct mac80211_hwsim_data *hwsim =
2028 container_of(work, struct mac80211_hwsim_data, roc_start.work);
2029
2030 mutex_lock(&hwsim->mutex);
2031
2032 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC begins\n");
2033 hwsim->tmp_chan = hwsim->roc_chan;
2034 ieee80211_ready_on_channel(hwsim->hw);
2035
2036 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->roc_done,
2037 msecs_to_jiffies(hwsim->roc_duration));
2038
2039 mutex_unlock(&hwsim->mutex);
2040}
2041
e8261171
JB		 2042static void hw_roc_done(struct work_struct *work)
2043{
2044 struct mac80211_hwsim_data *hwsim =
2045 container_of(work, struct mac80211_hwsim_data, roc_done.work);
2046
2047 mutex_lock(&hwsim->mutex);
2048 ieee80211_remain_on_channel_expired(hwsim->hw);
2049 hwsim->tmp_chan = NULL;
2050 mutex_unlock(&hwsim->mutex);
2051
2052 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC expired\n");
2053}
2054
2055static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
49884568 2056 struct ieee80211_vif *vif,
e8261171 2057 struct ieee80211_channel *chan,
d339d5ca
IP		 2058 int duration,
2059 enum ieee80211_roc_type type)
e8261171
JB		 2060{
2061 struct mac80211_hwsim_data *hwsim = hw->priv;
2062
2063 mutex_lock(&hwsim->mutex);
2064 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
2065 mutex_unlock(&hwsim->mutex);
2066 return -EBUSY;
2067 }
2068
661ef475
JB		 2069 hwsim->roc_chan = chan;
2070 hwsim->roc_duration = duration;
e8261171
JB		 2071 mutex_unlock(&hwsim->mutex);
2072
2073 wiphy_debug(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
2074 chan->center_freq, duration);
661ef475 2075 ieee80211_queue_delayed_work(hw, &hwsim->roc_start, HZ/50);
e8261171 2076
e8261171
JB		 2077 return 0;
2078}
2079
2080static int mac80211_hwsim_croc(struct ieee80211_hw *hw)
2081{
2082 struct mac80211_hwsim_data *hwsim = hw->priv;
2083
661ef475 2084 cancel_delayed_work_sync(&hwsim->roc_start);
e8261171
JB		 2085 cancel_delayed_work_sync(&hwsim->roc_done);
2086
2087 mutex_lock(&hwsim->mutex);
2088 hwsim->tmp_chan = NULL;
2089 mutex_unlock(&hwsim->mutex);
2090
2091 wiphy_debug(hw->wiphy, "hwsim ROC canceled\n");
2092
2093 return 0;
2094}
2095
2096static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
2097 struct ieee80211_chanctx_conf *ctx)
2098{
2099 hwsim_set_chanctx_magic(ctx);
4bf88530
JB		 2100 wiphy_debug(hw->wiphy,
2101 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2102 ctx->def.chan->center_freq, ctx->def.width,
2103 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 2104 return 0;
2105}
2106
2107static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
2108 struct ieee80211_chanctx_conf *ctx)
2109{
4bf88530
JB		 2110 wiphy_debug(hw->wiphy,
2111 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2112 ctx->def.chan->center_freq, ctx->def.width,
2113 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 2114 hwsim_check_chanctx_magic(ctx);
2115 hwsim_clear_chanctx_magic(ctx);
2116}
2117
2118static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
2119 struct ieee80211_chanctx_conf *ctx,
2120 u32 changed)
2121{
2122 hwsim_check_chanctx_magic(ctx);
4bf88530
JB		 2123 wiphy_debug(hw->wiphy,
2124 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2125 ctx->def.chan->center_freq, ctx->def.width,
2126 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 2127}
2128
2129static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
2130 struct ieee80211_vif *vif,
2131 struct ieee80211_chanctx_conf *ctx)
2132{
2133 hwsim_check_magic(vif);
2134 hwsim_check_chanctx_magic(ctx);
2135
2136 return 0;
2137}
2138
2139static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
2140 struct ieee80211_vif *vif,
2141 struct ieee80211_chanctx_conf *ctx)
2142{
2143 hwsim_check_magic(vif);
2144 hwsim_check_chanctx_magic(ctx);
2145}
2146
2155c3f8
BG		 2147static const char mac80211_hwsim_gstrings_stats[][ETH_GSTRING_LEN] = {
2148 "tx_pkts_nic",
2149 "tx_bytes_nic",
2150 "rx_pkts_nic",
2151 "rx_bytes_nic",
2152 "d_tx_dropped",
2153 "d_tx_failed",
2154 "d_ps_mode",
2155 "d_group",
2156 "d_tx_power",
2157};
2158
2159#define MAC80211_HWSIM_SSTATS_LEN ARRAY_SIZE(mac80211_hwsim_gstrings_stats)
2160
2161static void mac80211_hwsim_get_et_strings(struct ieee80211_hw *hw,
2162 struct ieee80211_vif *vif,
2163 u32 sset, u8 *data)
2164{
2165 if (sset == ETH_SS_STATS)
2166 memcpy(data, *mac80211_hwsim_gstrings_stats,
2167 sizeof(mac80211_hwsim_gstrings_stats));
2168}
2169
2170static int mac80211_hwsim_get_et_sset_count(struct ieee80211_hw *hw,
2171 struct ieee80211_vif *vif, int sset)
2172{
2173 if (sset == ETH_SS_STATS)
2174 return MAC80211_HWSIM_SSTATS_LEN;
2175 return 0;
2176}
2177
2178static void mac80211_hwsim_get_et_stats(struct ieee80211_hw *hw,
2179 struct ieee80211_vif *vif,
2180 struct ethtool_stats *stats, u64 *data)
2181{
2182 struct mac80211_hwsim_data *ar = hw->priv;
2183 int i = 0;
2184
2185 data[i++] = ar->tx_pkts;
2186 data[i++] = ar->tx_bytes;
2187 data[i++] = ar->rx_pkts;
2188 data[i++] = ar->rx_bytes;
2189 data[i++] = ar->tx_dropped;
2190 data[i++] = ar->tx_failed;
2191 data[i++] = ar->ps;
2192 data[i++] = ar->group;
2193 data[i++] = ar->power_level;
2194
2195 WARN_ON(i != MAC80211_HWSIM_SSTATS_LEN);
2196}
2197
38ed5048 2198static const struct ieee80211_ops mac80211_hwsim_ops = {
acc1e7a3
JM		 2199 .tx = mac80211_hwsim_tx,
2200 .start = mac80211_hwsim_start,
2201 .stop = mac80211_hwsim_stop,
2202 .add_interface = mac80211_hwsim_add_interface,
c35d0270 2203 .change_interface = mac80211_hwsim_change_interface,
acc1e7a3
JM		 2204 .remove_interface = mac80211_hwsim_remove_interface,
2205 .config = mac80211_hwsim_config,
2206 .configure_filter = mac80211_hwsim_configure_filter,
8aa21e6f 2207 .bss_info_changed = mac80211_hwsim_bss_info_changed,
1d669cbf
JB		 2208 .sta_add = mac80211_hwsim_sta_add,
2209 .sta_remove = mac80211_hwsim_sta_remove,
8aa21e6f 2210 .sta_notify = mac80211_hwsim_sta_notify,
81c06523 2211 .set_tim = mac80211_hwsim_set_tim,
1e898ff8 2212 .conf_tx = mac80211_hwsim_conf_tx,
1289723e 2213 .get_survey = mac80211_hwsim_get_survey,
aff89a9b 2214 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
8b73d13a 2215 .ampdu_action = mac80211_hwsim_ampdu_action,
f74cb0f7
LR		 2216 .sw_scan_start = mac80211_hwsim_sw_scan,
2217 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
a80f7c0b 2218 .flush = mac80211_hwsim_flush,
12ce8ba3
JC		 2219 .get_tsf = mac80211_hwsim_get_tsf,
2220 .set_tsf = mac80211_hwsim_set_tsf,
2155c3f8
BG		 2221 .get_et_sset_count = mac80211_hwsim_get_et_sset_count,
2222 .get_et_stats = mac80211_hwsim_get_et_stats,
2223 .get_et_strings = mac80211_hwsim_get_et_strings,
acc1e7a3
JM		 2224};
2225
38ed5048 2226static struct ieee80211_ops mac80211_hwsim_mchan_ops;
acc1e7a3 2227
62759361
JR		 2228struct hwsim_new_radio_params {
2229 unsigned int channels;
2230 const char *reg_alpha2;
2231 const struct ieee80211_regdomain *regd;
2232 bool reg_strict;
2233 bool p2p_device;
2234 bool use_chanctx;
2235 bool destroy_on_close;
2236 const char *hwname;
2237 bool no_vif;
2238};
2239
2240static void hwsim_mcast_config_msg(struct sk_buff *mcast_skb,
2241 struct genl_info *info)
2242{
2243 if (info)
92c14d9b
JB		 2244 genl_notify(&hwsim_genl_family, mcast_skb, info,
2245 HWSIM_MCGRP_CONFIG, GFP_KERNEL);
62759361
JR		 2246 else
2247 genlmsg_multicast(&hwsim_genl_family, mcast_skb, 0,
2248 HWSIM_MCGRP_CONFIG, GFP_KERNEL);
2249}
2250
c449981c
PF		 2251static int append_radio_msg(struct sk_buff *skb, int id,
2252 struct hwsim_new_radio_params *param)
62759361 2253{
62759361
JR		 2254 int ret;
2255
62759361
JR		 2256 ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
2257 if (ret < 0)
c449981c 2258 return ret;
62759361
JR		 2259
2260 if (param->channels) {
2261 ret = nla_put_u32(skb, HWSIM_ATTR_CHANNELS, param->channels);
2262 if (ret < 0)
c449981c 2263 return ret;
62759361
JR		 2264 }
2265
2266 if (param->reg_alpha2) {
2267 ret = nla_put(skb, HWSIM_ATTR_REG_HINT_ALPHA2, 2,
2268 param->reg_alpha2);
2269 if (ret < 0)
c449981c 2270 return ret;
62759361
JR		 2271 }
2272
2273 if (param->regd) {
2274 int i;
2275
5875755c
JB		 2276 for (i = 0; i < ARRAY_SIZE(hwsim_world_regdom_custom); i++) {
2277 if (hwsim_world_regdom_custom[i] != param->regd)
2278 continue;
62759361 2279
62759361
JR		 2280 ret = nla_put_u32(skb, HWSIM_ATTR_REG_CUSTOM_REG, i);
2281 if (ret < 0)
c449981c 2282 return ret;
5875755c 2283 break;
62759361
JR		 2284 }
2285 }
2286
2287 if (param->reg_strict) {
2288 ret = nla_put_flag(skb, HWSIM_ATTR_REG_STRICT_REG);
2289 if (ret < 0)
c449981c 2290 return ret;
62759361
JR		 2291 }
2292
2293 if (param->p2p_device) {
2294 ret = nla_put_flag(skb, HWSIM_ATTR_SUPPORT_P2P_DEVICE);
2295 if (ret < 0)
c449981c 2296 return ret;
62759361
JR		 2297 }
2298
2299 if (param->use_chanctx) {
2300 ret = nla_put_flag(skb, HWSIM_ATTR_USE_CHANCTX);
2301 if (ret < 0)
c449981c 2302 return ret;
62759361
JR		 2303 }
2304
2305 if (param->hwname) {
2306 ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME,
2307 strlen(param->hwname), param->hwname);
2308 if (ret < 0)
c449981c 2309 return ret;
62759361
JR		 2310 }
2311
c449981c 2312 return 0;
62759361
JR		 2313}
2314
c449981c 2315static void hwsim_mcast_new_radio(int id, struct genl_info *info,
62759361
JR		 2316 struct hwsim_new_radio_params *param)
2317{
2318 struct sk_buff *mcast_skb;
c449981c 2319 void *data;
62759361 2320
c449981c 2321 mcast_skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
62759361
JR		 2322 if (!mcast_skb)
2323 return;
2324
c449981c
PF		 2325 data = genlmsg_put(mcast_skb, 0, 0, &hwsim_genl_family, 0,
2326 HWSIM_CMD_NEW_RADIO);
2327 if (!data)
2328 goto out_err;
2329
2330 if (append_radio_msg(mcast_skb, id, param) < 0)
2331 goto out_err;
2332
2333 genlmsg_end(mcast_skb, data);
2334
62759361 2335 hwsim_mcast_config_msg(mcast_skb, info);
c449981c
PF		 2336 return;
2337
2338out_err:
2339 genlmsg_cancel(mcast_skb, data);
2340 nlmsg_free(mcast_skb);
62759361
JR		 2341}
2342
2343static int mac80211_hwsim_new_radio(struct genl_info *info,
2344 struct hwsim_new_radio_params *param)
acc1e7a3 2345{
de0421d5
JB		 2346 int err;
2347 u8 addr[ETH_ALEN];
e4afb603 2348 struct mac80211_hwsim_data *data;
de0421d5 2349 struct ieee80211_hw *hw;
57fbcce3 2350 enum nl80211_band band;
de0421d5
JB		 2351 const struct ieee80211_ops *ops = &mac80211_hwsim_ops;
2352 int idx;
0e057d73 2353
62759361 2354 if (WARN_ON(param->channels > 1 && !param->use_chanctx))
361c3e04
LC		 2355 return -EINVAL;
2356
0e057d73 2357 spin_lock_bh(&hwsim_radio_lock);
de0421d5 2358 idx = hwsim_radio_idx++;
0e057d73
JB		 2359 spin_unlock_bh(&hwsim_radio_lock);
2360
62759361 2361 if (param->use_chanctx)
de0421d5 2362 ops = &mac80211_hwsim_mchan_ops;
62759361 2363 hw = ieee80211_alloc_hw_nm(sizeof(*data), ops, param->hwname);
de0421d5
JB		 2364 if (!hw) {
2365 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw failed\n");
2366 err = -ENOMEM;
2367 goto failed;
2368 }
2369 data = hw->priv;
2370 data->hw = hw;
acc1e7a3 2371
de0421d5
JB		 2372 data->dev = device_create(hwsim_class, NULL, 0, hw, "hwsim%d", idx);
2373 if (IS_ERR(data->dev)) {
2374 printk(KERN_DEBUG
2375 "mac80211_hwsim: device_create failed (%ld)\n",
2376 PTR_ERR(data->dev));
2377 err = -ENOMEM;
2378 goto failed_drvdata;
2379 }
2380 data->dev->driver = &mac80211_hwsim_driver.driver;
2381 err = device_bind_driver(data->dev);
2382 if (err != 0) {
2383 printk(KERN_DEBUG "mac80211_hwsim: device_bind_driver failed (%d)\n",
2384 err);
805dbe17 2385 goto failed_bind;
acc1e7a3 2386 }
acc1e7a3 2387
de0421d5 2388 skb_queue_head_init(&data->pending);
acc1e7a3 2389
de0421d5 2390 SET_IEEE80211_DEV(hw, data->dev);
93803b33 2391 eth_zero_addr(addr);
de0421d5
JB		 2392 addr[0] = 0x02;
2393 addr[3] = idx >> 8;
2394 addr[4] = idx;
2395 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
2396 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
2397 data->addresses[1].addr[0] |= 0x40;
2398 hw->wiphy->n_addresses = 2;
2399 hw->wiphy->addresses = data->addresses;
fc6971d4 2400
62759361
JR		 2401 data->channels = param->channels;
2402 data->use_chanctx = param->use_chanctx;
bc791098 2403 data->idx = idx;
62759361
JR		 2404 data->destroy_on_close = param->destroy_on_close;
2405 if (info)
2406 data->portid = info->snd_portid;
fc6971d4 2407
361c3e04 2408 if (data->use_chanctx) {
de0421d5
JB		 2409 hw->wiphy->max_scan_ssids = 255;
2410 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
2411 hw->wiphy->max_remain_on_channel_duration = 1000;
2412 /* For channels > 1 DFS is not allowed */
2413 hw->wiphy->n_iface_combinations = 1;
2414 hw->wiphy->iface_combinations = &data->if_combination;
62759361 2415 if (param->p2p_device)
8c66a3d9
JB		 2416 data->if_combination = hwsim_if_comb_p2p_dev[0];
2417 else
2418 data->if_combination = hwsim_if_comb[0];
b59ec8dd 2419 data->if_combination.num_different_channels = data->channels;
62759361 2420 } else if (param->p2p_device) {
8c66a3d9
JB		 2421 hw->wiphy->iface_combinations = hwsim_if_comb_p2p_dev;
2422 hw->wiphy->n_iface_combinations =
2423 ARRAY_SIZE(hwsim_if_comb_p2p_dev);
de0421d5
JB		 2424 } else {
2425 hw->wiphy->iface_combinations = hwsim_if_comb;
2426 hw->wiphy->n_iface_combinations = ARRAY_SIZE(hwsim_if_comb);
2427 }
acc1e7a3 2428
661ef475 2429 INIT_DELAYED_WORK(&data->roc_start, hw_roc_start);
de0421d5
JB		 2430 INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
2431 INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
7882513b 2432
de0421d5
JB		 2433 hw->queues = 5;
2434 hw->offchannel_tx_hw_queue = 4;
2435 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2436 BIT(NL80211_IFTYPE_AP) |
2437 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2438 BIT(NL80211_IFTYPE_P2P_GO) |
2439 BIT(NL80211_IFTYPE_ADHOC) |
8c66a3d9
JB		 2440 BIT(NL80211_IFTYPE_MESH_POINT);
2441
62759361 2442 if (param->p2p_device)
8c66a3d9 2443 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_DEVICE);
fc6971d4 2444
30686bf7
JB		 2445 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
2446 ieee80211_hw_set(hw, CHANCTX_STA_CSA);
2447 ieee80211_hw_set(hw, SUPPORTS_HT_CCK_RATES);
2448 ieee80211_hw_set(hw, QUEUE_CONTROL);
2449 ieee80211_hw_set(hw, WANT_MONITOR_VIF);
2450 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
2451 ieee80211_hw_set(hw, MFP_CAPABLE);
2452 ieee80211_hw_set(hw, SIGNAL_DBM);
33c2f538 2453 ieee80211_hw_set(hw, TDLS_WIDER_BW);
de0421d5 2454 if (rctbl)
30686bf7 2455 ieee80211_hw_set(hw, SUPPORTS_RC_TABLE);
fc6971d4 2456
de0421d5
JB		 2457 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2458 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
0037db63
AO		 2459 WIPHY_FLAG_AP_UAPSD |
2460 WIPHY_FLAG_HAS_CHANNEL_SWITCH;
0d8614b4
EP		 2461 hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR |
2462 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
2463 NL80211_FEATURE_STATIC_SMPS |
339467b9
JB		 2464 NL80211_FEATURE_DYNAMIC_SMPS |
2465 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
00eeccc4 2466 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS);
fc6971d4 2467
de0421d5
JB		 2468 /* ask mac80211 to reserve space for magic */
2469 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
2470 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
2471 hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
fc6971d4 2472
de0421d5
JB		 2473 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
2474 sizeof(hwsim_channels_2ghz));
2475 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
2476 sizeof(hwsim_channels_5ghz));
2477 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
7882513b 2478
57fbcce3 2479 for (band = NL80211_BAND_2GHZ; band < NUM_NL80211_BANDS; band++) {
de0421d5
JB		 2480 struct ieee80211_supported_band *sband = &data->bands[band];
2481 switch (band) {
57fbcce3 2482 case NL80211_BAND_2GHZ:
de0421d5
JB		 2483 sband->channels = data->channels_2ghz;
2484 sband->n_channels = ARRAY_SIZE(hwsim_channels_2ghz);
2485 sband->bitrates = data->rates;
2486 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
2487 break;
57fbcce3 2488 case NL80211_BAND_5GHZ:
de0421d5
JB		 2489 sband->channels = data->channels_5ghz;
2490 sband->n_channels = ARRAY_SIZE(hwsim_channels_5ghz);
2491 sband->bitrates = data->rates + 4;
2492 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
f33f8483
IP		 2493
2494 sband->vht_cap.vht_supported = true;
2495 sband->vht_cap.cap =
2496 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
2497 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
2498 IEEE80211_VHT_CAP_RXLDPC |
2499 IEEE80211_VHT_CAP_SHORT_GI_80 |
2500 IEEE80211_VHT_CAP_SHORT_GI_160 |
2501 IEEE80211_VHT_CAP_TXSTBC |
2502 IEEE80211_VHT_CAP_RXSTBC_1 |
2503 IEEE80211_VHT_CAP_RXSTBC_2 |
2504 IEEE80211_VHT_CAP_RXSTBC_3 |
2505 IEEE80211_VHT_CAP_RXSTBC_4 |
2506 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
2507 sband->vht_cap.vht_mcs.rx_mcs_map =
8aca9b29
IP		 2508 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
2509 IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 |
f33f8483 2510 IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
8aca9b29
IP		 2511 IEEE80211_VHT_MCS_SUPPORT_0_9 << 6 |
2512 IEEE80211_VHT_MCS_SUPPORT_0_9 << 8 |
f33f8483
IP		 2513 IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
2514 IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
8aca9b29 2515 IEEE80211_VHT_MCS_SUPPORT_0_9 << 14);
f33f8483
IP		 2516 sband->vht_cap.vht_mcs.tx_mcs_map =
2517 sband->vht_cap.vht_mcs.rx_mcs_map;
de0421d5
JB		 2518 break;
2519 default:
2520 continue;
2521 }
acc1e7a3 2522
de0421d5
JB		 2523 sband->ht_cap.ht_supported = true;
2524 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
2525 IEEE80211_HT_CAP_GRN_FLD |
e49786db 2526 IEEE80211_HT_CAP_SGI_20 |
de0421d5
JB		 2527 IEEE80211_HT_CAP_SGI_40 |
2528 IEEE80211_HT_CAP_DSSSCCK40;
2529 sband->ht_cap.ampdu_factor = 0x3;
2530 sband->ht_cap.ampdu_density = 0x6;
2531 memset(&sband->ht_cap.mcs, 0,
2532 sizeof(sband->ht_cap.mcs));
2533 sband->ht_cap.mcs.rx_mask[0] = 0xff;
2534 sband->ht_cap.mcs.rx_mask[1] = 0xff;
2535 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
fc6971d4 2536
de0421d5 2537 hw->wiphy->bands[band] = sband;
de0421d5 2538 }
acc1e7a3 2539
de0421d5
JB		 2540 /* By default all radios belong to the first group */
2541 data->group = 1;
2542 mutex_init(&data->mutex);
fc6971d4 2543
de0421d5
JB		 2544 /* Enable frame retransmissions for lossy channels */
2545 hw->max_rates = 4;
2546 hw->max_rate_tries = 11;
fc6971d4 2547
d5d011b4
JM		 2548 hw->wiphy->vendor_commands = mac80211_hwsim_vendor_commands;
2549 hw->wiphy->n_vendor_commands =
2550 ARRAY_SIZE(mac80211_hwsim_vendor_commands);
2551 hw->wiphy->vendor_events = mac80211_hwsim_vendor_events;
2552 hw->wiphy->n_vendor_events = ARRAY_SIZE(mac80211_hwsim_vendor_events);
2553
62759361 2554 if (param->reg_strict)
26b0e411 2555 hw->wiphy->regulatory_flags |= REGULATORY_STRICT_REG;
62759361 2556 if (param->regd) {
93d638d4 2557 data->regd = param->regd;
26b0e411 2558 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
62759361 2559 wiphy_apply_custom_regulatory(hw->wiphy, param->regd);
26b0e411
JB		 2560 /* give the regulatory workqueue a chance to run */
2561 schedule_timeout_interruptible(1);
2562 }
fc6971d4 2563
62759361 2564 if (param->no_vif)
30686bf7 2565 ieee80211_hw_set(hw, NO_AUTO_VIF);
9a0cb89a 2566
de0421d5
JB		 2567 err = ieee80211_register_hw(hw);
2568 if (err < 0) {
2569 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_register_hw failed (%d)\n",
2570 err);
2571 goto failed_hw;
2572 }
fc6971d4 2573
de0421d5 2574 wiphy_debug(hw->wiphy, "hwaddr %pM registered\n", hw->wiphy->perm_addr);
fc6971d4 2575
93d638d4
PF		 2576 if (param->reg_alpha2) {
2577 data->alpha2[0] = param->reg_alpha2[0];
2578 data->alpha2[1] = param->reg_alpha2[1];
62759361 2579 regulatory_hint(hw->wiphy, param->reg_alpha2);
93d638d4 2580 }
7882513b 2581
de0421d5
JB		 2582 data->debugfs = debugfs_create_dir("hwsim", hw->wiphy->debugfsdir);
2583 debugfs_create_file("ps", 0666, data->debugfs, data, &hwsim_fops_ps);
2584 debugfs_create_file("group", 0666, data->debugfs, data,
2585 &hwsim_fops_group);
361c3e04 2586 if (!data->use_chanctx)
de0421d5
JB		 2587 debugfs_create_file("dfs_simulate_radar", 0222,
2588 data->debugfs,
2589 data, &hwsim_simulate_radar);
fc6971d4 2590
de0421d5
JB		 2591 tasklet_hrtimer_init(&data->beacon_timer,
2592 mac80211_hwsim_beacon,
2593 CLOCK_MONOTONIC_RAW, HRTIMER_MODE_ABS);
fc6971d4 2594
de0421d5
JB		 2595 spin_lock_bh(&hwsim_radio_lock);
2596 list_add_tail(&data->list, &hwsim_radios);
2597 spin_unlock_bh(&hwsim_radio_lock);
fc6971d4 2598
62759361 2599 if (idx > 0)
c449981c 2600 hwsim_mcast_new_radio(idx, info, param);
62759361 2601
bc791098 2602 return idx;
fc6971d4 2603
de0421d5 2604failed_hw:
805dbe17
JM		 2605 device_release_driver(data->dev);
2606failed_bind:
de0421d5
JB		 2607 device_unregister(data->dev);
2608failed_drvdata:
2609 ieee80211_free_hw(hw);
2610failed:
2611 return err;
fc6971d4
JM		 2612}
2613
579a05f2
JR		 2614static void hwsim_mcast_del_radio(int id, const char *hwname,
2615 struct genl_info *info)
fc6971d4 2616{
579a05f2
JR		 2617 struct sk_buff *skb;
2618 void *data;
2619 int ret;
2620
2621 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
2622 if (!skb)
2623 return;
2624
2625 data = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
2626 HWSIM_CMD_DEL_RADIO);
2627 if (!data)
2628 goto error;
2629
2630 ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
2631 if (ret < 0)
2632 goto error;
2633
b9995f83
JR		 2634 ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME, strlen(hwname),
2635 hwname);
2636 if (ret < 0)
2637 goto error;
579a05f2
JR		 2638
2639 genlmsg_end(skb, data);
2640
2641 hwsim_mcast_config_msg(skb, info);
2642
2643 return;
2644
2645error:
2646 nlmsg_free(skb);
2647}
2648
2649static void mac80211_hwsim_del_radio(struct mac80211_hwsim_data *data,
2650 const char *hwname,
2651 struct genl_info *info)
2652{
2653 hwsim_mcast_del_radio(data->idx, hwname, info);
de0421d5
JB		 2654 debugfs_remove_recursive(data->debugfs);
2655 ieee80211_unregister_hw(data->hw);
2656 device_release_driver(data->dev);
2657 device_unregister(data->dev);
2658 ieee80211_free_hw(data->hw);
fc6971d4
JM		 2659}
2660
93d638d4
PF		 2661static int mac80211_hwsim_get_radio(struct sk_buff *skb,
2662 struct mac80211_hwsim_data *data,
2663 u32 portid, u32 seq,
2664 struct netlink_callback *cb, int flags)
2665{
2666 void *hdr;
2667 struct hwsim_new_radio_params param = { };
2668 int res = -EMSGSIZE;
2669
2670 hdr = genlmsg_put(skb, portid, seq, &hwsim_genl_family, flags,
2671 HWSIM_CMD_GET_RADIO);
2672 if (!hdr)
2673 return -EMSGSIZE;
2674
2675 if (cb)
2676 genl_dump_check_consistent(cb, hdr, &hwsim_genl_family);
2677
b0ad5e8b
PF		 2678 if (data->alpha2[0] && data->alpha2[1])
2679 param.reg_alpha2 = data->alpha2;
2680
93d638d4
PF		 2681 param.reg_strict = !!(data->hw->wiphy->regulatory_flags &
2682 REGULATORY_STRICT_REG);
2683 param.p2p_device = !!(data->hw->wiphy->interface_modes &
2684 BIT(NL80211_IFTYPE_P2P_DEVICE));
2685 param.use_chanctx = data->use_chanctx;
2686 param.regd = data->regd;
2687 param.channels = data->channels;
2688 param.hwname = wiphy_name(data->hw->wiphy);
2689
2690 res = append_radio_msg(skb, data->idx, &param);
2691 if (res < 0)
2692 goto out_err;
2693
053c095a
JB		 2694 genlmsg_end(skb, hdr);
2695 return 0;
93d638d4
PF		 2696
2697out_err:
2698 genlmsg_cancel(skb, hdr);
2699 return res;
2700}
2701
de0421d5 2702static void mac80211_hwsim_free(void)
fc6971d4 2703{
de0421d5 2704 struct mac80211_hwsim_data *data;
fc6971d4 2705
de0421d5
JB		 2706 spin_lock_bh(&hwsim_radio_lock);
2707 while ((data = list_first_entry_or_null(&hwsim_radios,
2708 struct mac80211_hwsim_data,
2709 list))) {
2710 list_del(&data->list);
2711 spin_unlock_bh(&hwsim_radio_lock);
b9995f83
JR		 2712 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
2713 NULL);
de0421d5 2714 spin_lock_bh(&hwsim_radio_lock);
fc6971d4 2715 }
de0421d5
JB		 2716 spin_unlock_bh(&hwsim_radio_lock);
2717 class_destroy(hwsim_class);
bba05e3d
JD		 2718}
2719
de0421d5
JB		 2720static const struct net_device_ops hwsim_netdev_ops = {
2721 .ndo_start_xmit = hwsim_mon_xmit,
2722 .ndo_change_mtu = eth_change_mtu,
2723 .ndo_set_mac_address = eth_mac_addr,
2724 .ndo_validate_addr = eth_validate_addr,
2725};
73606d00 2726
de0421d5 2727static void hwsim_mon_setup(struct net_device *dev)
73606d00 2728{
de0421d5
JB		 2729 dev->netdev_ops = &hwsim_netdev_ops;
2730 dev->destructor = free_netdev;
2731 ether_setup(dev);
3db6da1f 2732 dev->priv_flags |= IFF_NO_QUEUE;
de0421d5 2733 dev->type = ARPHRD_IEEE80211_RADIOTAP;
93803b33 2734 eth_zero_addr(dev->dev_addr);
de0421d5 2735 dev->dev_addr[0] = 0x12;
73606d00
DW		 2736}
2737
9ddd12af 2738static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(const u8 *addr)
7882513b
JL		 2739{
2740 struct mac80211_hwsim_data *data;
2741 bool _found = false;
2742
2743 spin_lock_bh(&hwsim_radio_lock);
2744 list_for_each_entry(data, &hwsim_radios, list) {
354210f8 2745 if (memcmp(data->addresses[1].addr, addr, ETH_ALEN) == 0) {
7882513b
JL		 2746 _found = true;
2747 break;
2748 }
2749 }
2750 spin_unlock_bh(&hwsim_radio_lock);
2751
2752 if (!_found)
2753 return NULL;
2754
2755 return data;
2756}
2757
2758static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
2759 struct genl_info *info)
2760{
2761
2762 struct ieee80211_hdr *hdr;
2763 struct mac80211_hwsim_data *data2;
2764 struct ieee80211_tx_info *txi;
2765 struct hwsim_tx_rate *tx_attempts;
959eb2fd 2766 u64 ret_skb_cookie;
7882513b 2767 struct sk_buff *skb, *tmp;
9ddd12af 2768 const u8 *src;
7882513b 2769 unsigned int hwsim_flags;
7882513b
JL		 2770 int i;
2771 bool found = false;
2772
85ca8fc7
JB		 2773 if (info->snd_portid != wmediumd_portid)
2774 return -EINVAL;
2775
7882513b 2776 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
9ddd12af
JB		 2777 !info->attrs[HWSIM_ATTR_FLAGS] ||
2778 !info->attrs[HWSIM_ATTR_COOKIE] ||
2779 !info->attrs[HWSIM_ATTR_TX_INFO])
7882513b
JL		 2780 goto out;
2781
9ddd12af 2782 src = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
7882513b 2783 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
959eb2fd 2784 ret_skb_cookie = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
7882513b
JL		 2785
2786 data2 = get_hwsim_data_ref_from_addr(src);
9ddd12af 2787 if (!data2)
7882513b
JL		 2788 goto out;
2789
2790 /* look for the skb matching the cookie passed back from user */
2791 skb_queue_walk_safe(&data2->pending, skb, tmp) {
959eb2fd
JB		 2792 u64 skb_cookie;
2793
2794 txi = IEEE80211_SKB_CB(skb);
2795 skb_cookie = (u64)(uintptr_t)txi->rate_driver_data[0];
2796
2797 if (skb_cookie == ret_skb_cookie) {
7882513b
JL		 2798 skb_unlink(skb, &data2->pending);
2799 found = true;
2800 break;
2801 }
2802 }
2803
2804 /* not found */
2805 if (!found)
2806 goto out;
2807
2808 /* Tx info received because the frame was broadcasted on user space,
2809 so we get all the necessary info: tx attempts and skb control buff */
2810
2811 tx_attempts = (struct hwsim_tx_rate *)nla_data(
2812 info->attrs[HWSIM_ATTR_TX_INFO]);
2813
2814 /* now send back TX status */
2815 txi = IEEE80211_SKB_CB(skb);
2816
7882513b
JL		 2817 ieee80211_tx_info_clear_status(txi);
2818
2819 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
2820 txi->status.rates[i].idx = tx_attempts[i].idx;
2821 txi->status.rates[i].count = tx_attempts[i].count;
2822 /*txi->status.rates[i].flags = 0;*/
2823 }
2824
2825 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
2826
2827 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
2828 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
2829 if (skb->len >= 16) {
2830 hdr = (struct ieee80211_hdr *) skb->data;
c0e30763 2831 mac80211_hwsim_monitor_ack(data2->channel,
e8261171 2832 hdr->addr2);
7882513b 2833 }
06cf5c4c 2834 txi->flags |= IEEE80211_TX_STAT_ACK;
7882513b
JL		 2835 }
2836 ieee80211_tx_status_irqsafe(data2->hw, skb);
2837 return 0;
2838out:
2839 return -EINVAL;
2840
2841}
2842
2843static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
2844 struct genl_info *info)
2845{
e8261171 2846 struct mac80211_hwsim_data *data2;
7882513b 2847 struct ieee80211_rx_status rx_status;
9ddd12af 2848 const u8 *dst;
7882513b 2849 int frame_data_len;
9ddd12af 2850 void *frame_data;
7882513b
JL		 2851 struct sk_buff *skb = NULL;
2852
85ca8fc7
JB		 2853 if (info->snd_portid != wmediumd_portid)
2854 return -EINVAL;
2855
7882513b 2856 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
e8261171
JB		 2857 !info->attrs[HWSIM_ATTR_FRAME] ||
2858 !info->attrs[HWSIM_ATTR_RX_RATE] ||
2859 !info->attrs[HWSIM_ATTR_SIGNAL])
7882513b
JL		 2860 goto out;
2861
9ddd12af 2862 dst = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
7882513b 2863 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
9ddd12af 2864 frame_data = (void *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
7882513b
JL		 2865
2866 /* Allocate new skb here */
2867 skb = alloc_skb(frame_data_len, GFP_KERNEL);
2868 if (skb == NULL)
2869 goto err;
2870
9ddd12af 2871 if (frame_data_len > IEEE80211_MAX_DATA_LEN)
7882513b
JL		 2872 goto err;
2873
9ddd12af
JB		 2874 /* Copy the data */
2875 memcpy(skb_put(skb, frame_data_len), frame_data, frame_data_len);
7882513b 2876
9ddd12af
JB		 2877 data2 = get_hwsim_data_ref_from_addr(dst);
2878 if (!data2)
7882513b
JL		 2879 goto out;
2880
2881 /* check if radio is configured properly */
2882
e8261171 2883 if (data2->idle || !data2->started)
7882513b
JL		 2884 goto out;
2885
9ddd12af 2886 /* A frame is received from user space */
7882513b 2887 memset(&rx_status, 0, sizeof(rx_status));
641cf2a5
AW		 2888 if (info->attrs[HWSIM_ATTR_FREQ]) {
2889 /* throw away off-channel packets, but allow both the temporary
2890 * ("hw" scan/remain-on-channel) and regular channel, since the
2891 * internal datapath also allows this
2892 */
2893 mutex_lock(&data2->mutex);
2894 rx_status.freq = nla_get_u32(info->attrs[HWSIM_ATTR_FREQ]);
2895
2896 if (rx_status.freq != data2->channel->center_freq &&
2897 (!data2->tmp_chan ||
2898 rx_status.freq != data2->tmp_chan->center_freq)) {
2899 mutex_unlock(&data2->mutex);
2900 goto out;
2901 }
2902 mutex_unlock(&data2->mutex);
2903 } else {
2904 rx_status.freq = data2->channel->center_freq;
2905 }
2906
7882513b
JL		 2907 rx_status.band = data2->channel->band;
2908 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
2909 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
2910
2911 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
2155c3f8
BG		 2912 data2->rx_pkts++;
2913 data2->rx_bytes += skb->len;
7882513b
JL		 2914 ieee80211_rx_irqsafe(data2->hw, skb);
2915
2916 return 0;
2917err:
c393862f 2918 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 2919out:
2920 dev_kfree_skb(skb);
2921 return -EINVAL;
2922}
2923
2924static int hwsim_register_received_nl(struct sk_buff *skb_2,
2925 struct genl_info *info)
2926{
c5ac0854
JB		 2927 struct mac80211_hwsim_data *data;
2928 int chans = 1;
2929
2930 spin_lock_bh(&hwsim_radio_lock);
2931 list_for_each_entry(data, &hwsim_radios, list)
2932 chans = max(chans, data->channels);
2933 spin_unlock_bh(&hwsim_radio_lock);
2934
2935 /* In the future we should revise the userspace API and allow it
2936 * to set a flag that it does support multi-channel, then we can
2937 * let this pass conditionally on the flag.
2938 * For current userspace, prohibit it since it won't work right.
2939 */
2940 if (chans > 1)
2941 return -EOPNOTSUPP;
2942
85ca8fc7
JB		 2943 if (wmediumd_portid)
2944 return -EBUSY;
7882513b 2945
15e47304 2946 wmediumd_portid = info->snd_portid;
7882513b
JL		 2947
2948 printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
15e47304 2949 "switching to wmediumd mode with pid %d\n", info->snd_portid);
7882513b
JL		 2950
2951 return 0;
7882513b
JL		 2952}
2953
62759361 2954static int hwsim_new_radio_nl(struct sk_buff *msg, struct genl_info *info)
bc791098 2955{
62759361
JR		 2956 struct hwsim_new_radio_params param = { 0 };
2957
2958 param.reg_strict = info->attrs[HWSIM_ATTR_REG_STRICT_REG];
2959 param.p2p_device = info->attrs[HWSIM_ATTR_SUPPORT_P2P_DEVICE];
2960 param.channels = channels;
2961 param.destroy_on_close =
2962 info->attrs[HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE];
bc791098
JB		 2963
2964 if (info->attrs[HWSIM_ATTR_CHANNELS])
62759361 2965 param.channels = nla_get_u32(info->attrs[HWSIM_ATTR_CHANNELS]);
bc791098 2966
9a0cb89a 2967 if (info->attrs[HWSIM_ATTR_NO_VIF])
62759361 2968 param.no_vif = true;
9a0cb89a 2969
5cd8926b 2970 if (info->attrs[HWSIM_ATTR_RADIO_NAME])
62759361 2971 param.hwname = nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]);
5cd8926b 2972
361c3e04 2973 if (info->attrs[HWSIM_ATTR_USE_CHANCTX])
62759361 2974 param.use_chanctx = true;
361c3e04 2975 else
62759361 2976 param.use_chanctx = (param.channels > 1);
361c3e04 2977
26b0e411 2978 if (info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2])
62759361
JR		 2979 param.reg_alpha2 =
2980 nla_data(info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2]);
26b0e411
JB		 2981
2982 if (info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]) {
2983 u32 idx = nla_get_u32(info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]);
2984
2985 if (idx >= ARRAY_SIZE(hwsim_world_regdom_custom))
2986 return -EINVAL;
62759361 2987 param.regd = hwsim_world_regdom_custom[idx];
26b0e411
JB		 2988 }
2989
62759361 2990 return mac80211_hwsim_new_radio(info, &param);
bc791098
JB		 2991}
2992
579a05f2 2993static int hwsim_del_radio_nl(struct sk_buff *msg, struct genl_info *info)
bc791098
JB		 2994{
2995 struct mac80211_hwsim_data *data;
8cdd9e1c
BG		 2996 s64 idx = -1;
2997 const char *hwname = NULL;
bc791098 2998
8cdd9e1c
BG		 2999 if (info->attrs[HWSIM_ATTR_RADIO_ID])
3000 idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
3001 else if (info->attrs[HWSIM_ATTR_RADIO_NAME])
3002 hwname = (void *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]);
3003 else
bc791098 3004 return -EINVAL;
bc791098
JB		 3005
3006 spin_lock_bh(&hwsim_radio_lock);
3007 list_for_each_entry(data, &hwsim_radios, list) {
8cdd9e1c
BG		 3008 if (idx >= 0) {
3009 if (data->idx != idx)
3010 continue;
3011 } else {
6b67e01f 3012 if (strcmp(hwname, wiphy_name(data->hw->wiphy)))
8cdd9e1c
BG		 3013 continue;
3014 }
3015
bc791098
JB		 3016 list_del(&data->list);
3017 spin_unlock_bh(&hwsim_radio_lock);
b9995f83
JR		 3018 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
3019 info);
bc791098
JB		 3020 return 0;
3021 }
3022 spin_unlock_bh(&hwsim_radio_lock);
3023
3024 return -ENODEV;
7882513b
JL		 3025}
3026
93d638d4
PF		 3027static int hwsim_get_radio_nl(struct sk_buff *msg, struct genl_info *info)
3028{
3029 struct mac80211_hwsim_data *data;
3030 struct sk_buff *skb;
3031 int idx, res = -ENODEV;
3032
3033 if (!info->attrs[HWSIM_ATTR_RADIO_ID])
3034 return -EINVAL;
3035 idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
3036
3037 spin_lock_bh(&hwsim_radio_lock);
3038 list_for_each_entry(data, &hwsim_radios, list) {
3039 if (data->idx != idx)
3040 continue;
3041
3042 skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3043 if (!skb) {
3044 res = -ENOMEM;
3045 goto out_err;
3046 }
3047
3048 res = mac80211_hwsim_get_radio(skb, data, info->snd_portid,
3049 info->snd_seq, NULL, 0);
3050 if (res < 0) {
3051 nlmsg_free(skb);
3052 goto out_err;
3053 }
3054
3055 genlmsg_reply(skb, info);
3056 break;
3057 }
3058
3059out_err:
3060 spin_unlock_bh(&hwsim_radio_lock);
3061
3062 return res;
3063}
3064
3065static int hwsim_dump_radio_nl(struct sk_buff *skb,
3066 struct netlink_callback *cb)
3067{
3068 int idx = cb->args[0];
3069 struct mac80211_hwsim_data *data = NULL;
3070 int res;
3071
3072 spin_lock_bh(&hwsim_radio_lock);
3073
3074 if (idx == hwsim_radio_idx)
3075 goto done;
3076
3077 list_for_each_entry(data, &hwsim_radios, list) {
3078 if (data->idx < idx)
3079 continue;
3080
3081 res = mac80211_hwsim_get_radio(skb, data,
3082 NETLINK_CB(cb->skb).portid,
3083 cb->nlh->nlmsg_seq, cb,
3084 NLM_F_MULTI);
3085 if (res < 0)
3086 break;
3087
3088 idx = data->idx + 1;
3089 }
3090
3091 cb->args[0] = idx;
3092
3093done:
3094 spin_unlock_bh(&hwsim_radio_lock);
3095 return skb->len;
3096}
3097
7882513b 3098/* Generic Netlink operations array */
4534de83 3099static const struct genl_ops hwsim_ops[] = {
7882513b
JL		 3100 {
3101 .cmd = HWSIM_CMD_REGISTER,
3102 .policy = hwsim_genl_policy,
3103 .doit = hwsim_register_received_nl,
3104 .flags = GENL_ADMIN_PERM,
3105 },
3106 {
3107 .cmd = HWSIM_CMD_FRAME,
3108 .policy = hwsim_genl_policy,
3109 .doit = hwsim_cloned_frame_received_nl,
3110 },
3111 {
3112 .cmd = HWSIM_CMD_TX_INFO_FRAME,
3113 .policy = hwsim_genl_policy,
3114 .doit = hwsim_tx_info_frame_received_nl,
3115 },
bc791098 3116 {
62759361 3117 .cmd = HWSIM_CMD_NEW_RADIO,
bc791098 3118 .policy = hwsim_genl_policy,
62759361 3119 .doit = hwsim_new_radio_nl,
bc791098
JB		 3120 .flags = GENL_ADMIN_PERM,
3121 },
3122 {
579a05f2 3123 .cmd = HWSIM_CMD_DEL_RADIO,
bc791098 3124 .policy = hwsim_genl_policy,
579a05f2 3125 .doit = hwsim_del_radio_nl,
bc791098
JB		 3126 .flags = GENL_ADMIN_PERM,
3127 },
93d638d4
PF		 3128 {
3129 .cmd = HWSIM_CMD_GET_RADIO,
3130 .policy = hwsim_genl_policy,
3131 .doit = hwsim_get_radio_nl,
3132 .dumpit = hwsim_dump_radio_nl,
3133 },
7882513b
JL		 3134};
3135
e9ed49bf
JR		 3136static void destroy_radio(struct work_struct *work)
3137{
3138 struct mac80211_hwsim_data *data =
3139 container_of(work, struct mac80211_hwsim_data, destroy_work);
3140
b9995f83 3141 mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy), NULL);
e9ed49bf
JR		 3142}
3143
3144static void remove_user_radios(u32 portid)
3145{
3146 struct mac80211_hwsim_data *entry, *tmp;
3147
3148 spin_lock_bh(&hwsim_radio_lock);
3149 list_for_each_entry_safe(entry, tmp, &hwsim_radios, list) {
3150 if (entry->destroy_on_close && entry->portid == portid) {
3151 list_del(&entry->list);
3152 INIT_WORK(&entry->destroy_work, destroy_radio);
3153 schedule_work(&entry->destroy_work);
3154 }
3155 }
3156 spin_unlock_bh(&hwsim_radio_lock);
3157}
3158
7882513b
JL		 3159static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
3160 unsigned long state,
3161 void *_notify)
3162{
3163 struct netlink_notify *notify = _notify;
3164
3165 if (state != NETLINK_URELEASE)
3166 return NOTIFY_DONE;
3167
e9ed49bf
JR		 3168 remove_user_radios(notify->portid);
3169
15e47304 3170 if (notify->portid == wmediumd_portid) {
7882513b
JL		 3171 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
3172 " socket, switching to perfect channel medium\n");
15e47304 3173 wmediumd_portid = 0;
7882513b
JL		 3174 }
3175 return NOTIFY_DONE;
3176
3177}
3178
3179static struct notifier_block hwsim_netlink_notifier = {
3180 .notifier_call = mac80211_hwsim_netlink_notify,
3181};
3182
3183static int hwsim_init_netlink(void)
3184{
3185 int rc;
e8261171 3186
7882513b
JL		 3187 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
3188
62759361
JR		 3189 rc = genl_register_family_with_ops_groups(&hwsim_genl_family,
3190 hwsim_ops,
3191 hwsim_mcgrps);
7882513b
JL		 3192 if (rc)
3193 goto failure;
3194
3195 rc = netlink_register_notifier(&hwsim_netlink_notifier);
2459cd87
SKY		 3196 if (rc) {
3197 genl_unregister_family(&hwsim_genl_family);
7882513b 3198 goto failure;
2459cd87 3199 }
7882513b
JL		 3200
3201 return 0;
3202
3203failure:
c393862f 3204 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 3205 return -EINVAL;
3206}
3207
3208static void hwsim_exit_netlink(void)
3209{
7882513b
JL		 3210 /* unregister the notifier */
3211 netlink_unregister_notifier(&hwsim_netlink_notifier);
3212 /* unregister the family */
cf7a6b2d 3213 genl_unregister_family(&hwsim_genl_family);
7882513b
JL		 3214}
3215
acc1e7a3
JM		 3216static int __init init_mac80211_hwsim(void)
3217{
f39c2bfa 3218 int i, err;
acc1e7a3 3219
bc791098 3220 if (radios < 0 || radios > 100)
acc1e7a3
JM		 3221 return -EINVAL;
3222
e8261171
JB		 3223 if (channels < 1)
3224 return -EINVAL;
3225
38ed5048
JB		 3226 mac80211_hwsim_mchan_ops = mac80211_hwsim_ops;
3227 mac80211_hwsim_mchan_ops.hw_scan = mac80211_hwsim_hw_scan;
3228 mac80211_hwsim_mchan_ops.cancel_hw_scan = mac80211_hwsim_cancel_hw_scan;
3229 mac80211_hwsim_mchan_ops.sw_scan_start = NULL;
3230 mac80211_hwsim_mchan_ops.sw_scan_complete = NULL;
3231 mac80211_hwsim_mchan_ops.remain_on_channel = mac80211_hwsim_roc;
3232 mac80211_hwsim_mchan_ops.cancel_remain_on_channel = mac80211_hwsim_croc;
3233 mac80211_hwsim_mchan_ops.add_chanctx = mac80211_hwsim_add_chanctx;
3234 mac80211_hwsim_mchan_ops.remove_chanctx = mac80211_hwsim_remove_chanctx;
3235 mac80211_hwsim_mchan_ops.change_chanctx = mac80211_hwsim_change_chanctx;
3236 mac80211_hwsim_mchan_ops.assign_vif_chanctx =
3237 mac80211_hwsim_assign_vif_chanctx;
3238 mac80211_hwsim_mchan_ops.unassign_vif_chanctx =
3239 mac80211_hwsim_unassign_vif_chanctx;
69068036 3240
0e057d73
JB		 3241 spin_lock_init(&hwsim_radio_lock);
3242 INIT_LIST_HEAD(&hwsim_radios);
acc1e7a3 3243
c07fe5ae 3244 err = platform_driver_register(&mac80211_hwsim_driver);
9ea92774
MP		 3245 if (err)
3246 return err;
3247
acc1e7a3 3248 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
9ea92774
MP		 3249 if (IS_ERR(hwsim_class)) {
3250 err = PTR_ERR(hwsim_class);
f39c2bfa 3251 goto out_unregister_driver;
9ea92774 3252 }
acc1e7a3 3253
62759361
JR		 3254 err = hwsim_init_netlink();
3255 if (err < 0)
3256 goto out_unregister_driver;
3257
0e057d73 3258 for (i = 0; i < radios; i++) {
62759361
JR		 3259 struct hwsim_new_radio_params param = { 0 };
3260
3261 param.channels = channels;
acc1e7a3 3262
4a5af9c2 3263 switch (regtest) {
4a5af9c2 3264 case HWSIM_REGTEST_DIFF_COUNTRY:
26b0e411 3265 if (i < ARRAY_SIZE(hwsim_alpha2s))
62759361 3266 param.reg_alpha2 = hwsim_alpha2s[i];
4a5af9c2
LR		 3267 break;
3268 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
3269 if (!i)
62759361 3270 param.reg_alpha2 = hwsim_alpha2s[0];
4a5af9c2 3271 break;
4a5af9c2 3272 case HWSIM_REGTEST_STRICT_ALL:
62759361 3273 param.reg_strict = true;
26b0e411 3274 case HWSIM_REGTEST_DRIVER_REG_ALL:
62759361 3275 param.reg_alpha2 = hwsim_alpha2s[0];
4a5af9c2 3276 break;
26b0e411
JB		 3277 case HWSIM_REGTEST_WORLD_ROAM:
3278 if (i == 0)
62759361 3279 param.regd = &hwsim_world_regdom_custom_01;
4a5af9c2
LR		 3280 break;
3281 case HWSIM_REGTEST_CUSTOM_WORLD:
62759361 3282 param.regd = &hwsim_world_regdom_custom_01;
26b0e411 3283 break;
4a5af9c2 3284 case HWSIM_REGTEST_CUSTOM_WORLD_2:
26b0e411 3285 if (i == 0)
62759361 3286 param.regd = &hwsim_world_regdom_custom_01;
26b0e411 3287 else if (i == 1)
62759361 3288 param.regd = &hwsim_world_regdom_custom_02;
4a5af9c2
LR		 3289 break;
3290 case HWSIM_REGTEST_STRICT_FOLLOW:
26b0e411 3291 if (i == 0) {
62759361
JR		 3292 param.reg_strict = true;
3293 param.reg_alpha2 = hwsim_alpha2s[0];
26b0e411 3294 }
4a5af9c2
LR		 3295 break;
3296 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
26b0e411 3297 if (i == 0) {
62759361
JR		 3298 param.reg_strict = true;
3299 param.reg_alpha2 = hwsim_alpha2s[0];
26b0e411 3300 } else if (i == 1) {
62759361 3301 param.reg_alpha2 = hwsim_alpha2s[1];
26b0e411 3302 }
4a5af9c2
LR		 3303 break;
3304 case HWSIM_REGTEST_ALL:
26b0e411
JB		 3305 switch (i) {
3306 case 0:
62759361 3307 param.regd = &hwsim_world_regdom_custom_01;
26b0e411
JB		 3308 break;
3309 case 1:
62759361 3310 param.regd = &hwsim_world_regdom_custom_02;
26b0e411
JB		 3311 break;
3312 case 2:
62759361 3313 param.reg_alpha2 = hwsim_alpha2s[0];
26b0e411
JB		 3314 break;
3315 case 3:
62759361 3316 param.reg_alpha2 = hwsim_alpha2s[1];
26b0e411
JB		 3317 break;
3318 case 4:
62759361
JR		 3319 param.reg_strict = true;
3320 param.reg_alpha2 = hwsim_alpha2s[2];
26b0e411
JB		 3321 break;
3322 }
4a5af9c2
LR		 3323 break;
3324 default:
3325 break;
3326 }
3327
62759361
JR		 3328 param.p2p_device = support_p2p_device;
3329 param.use_chanctx = channels > 1;
3330
3331 err = mac80211_hwsim_new_radio(NULL, &param);
bc791098 3332 if (err < 0)
f39c2bfa 3333 goto out_free_radios;
acc1e7a3
JM		 3334 }
3335
c835a677
TG		 3336 hwsim_mon = alloc_netdev(0, "hwsim%d", NET_NAME_UNKNOWN,
3337 hwsim_mon_setup);
bcdd8220
WY		 3338 if (hwsim_mon == NULL) {
3339 err = -ENOMEM;
f39c2bfa 3340 goto out_free_radios;
bcdd8220 3341 }
acc1e7a3 3342
7882513b 3343 rtnl_lock();
7882513b 3344 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
f39c2bfa
JB		 3345 if (err < 0) {
3346 rtnl_unlock();
3347 goto out_free_radios;
3348 }
7882513b
JL		 3349
3350 err = register_netdevice(hwsim_mon);
f39c2bfa
JB		 3351 if (err < 0) {
3352 rtnl_unlock();
3353 goto out_free_mon;
3354 }
7882513b
JL		 3355 rtnl_unlock();
3356
acc1e7a3
JM		 3357 return 0;
3358
f39c2bfa 3359out_free_mon:
acc1e7a3 3360 free_netdev(hwsim_mon);
f39c2bfa 3361out_free_radios:
3a33cc10 3362 mac80211_hwsim_free();
f39c2bfa 3363out_unregister_driver:
c07fe5ae 3364 platform_driver_unregister(&mac80211_hwsim_driver);
acc1e7a3
JM		 3365 return err;
3366}
f8fffc7e 3367module_init(init_mac80211_hwsim);
acc1e7a3
JM		 3368
3369static void __exit exit_mac80211_hwsim(void)
3370{
0e057d73 3371 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
acc1e7a3 3372
7882513b
JL		 3373 hwsim_exit_netlink();
3374
acc1e7a3 3375 mac80211_hwsim_free();
5d416351 3376 unregister_netdev(hwsim_mon);
c07fe5ae 3377 platform_driver_unregister(&mac80211_hwsim_driver);
acc1e7a3 3378}
acc1e7a3 3379module_exit(exit_mac80211_hwsim);
Linux 6.x block layer and io_uring tree(s)