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mac80211_hwsim: fix tsf adjustment
[mirror_ubuntu-artful-kernel.git] / drivers / net / wireless / mac80211_hwsim.c
CommitLineData
acc1e7a3
JM		 1/*
2 * mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211
3 * Copyright (c) 2008, Jouni Malinen <j@w1.fi>
7882513b 4 * Copyright (c) 2011, Javier Lopez <jlopex@gmail.com>
acc1e7a3
JM		 5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10
11/*
12 * TODO:
2b2d7795
JB		 13 * - Add TSF sync and fix IBSS beacon transmission by adding
14 * competition for "air time" at TBTT
acc1e7a3
JM		 15 * - RX filtering based on filter configuration (data->rx_filter)
16 */
17
0e057d73 18#include <linux/list.h>
5a0e3ad6 19#include <linux/slab.h>
0e057d73 20#include <linux/spinlock.h>
90e3012e
JB		 21#include <net/dst.h>
22#include <net/xfrm.h>
acc1e7a3
JM		 23#include <net/mac80211.h>
24#include <net/ieee80211_radiotap.h>
25#include <linux/if_arp.h>
26#include <linux/rtnetlink.h>
27#include <linux/etherdevice.h>
fc6971d4 28#include <linux/debugfs.h>
9d9779e7 29#include <linux/module.h>
2f40b940 30#include <linux/ktime.h>
7882513b
JL		 31#include <net/genetlink.h>
32#include "mac80211_hwsim.h"
33
34#define WARN_QUEUE 100
35#define MAX_QUEUE 200
acc1e7a3
JM		 36
37MODULE_AUTHOR("Jouni Malinen");
38MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
39MODULE_LICENSE("GPL");
40
15e47304 41static u32 wmediumd_portid;
a1910f9c 42
acc1e7a3
JM		 43static int radios = 2;
44module_param(radios, int, 0444);
45MODULE_PARM_DESC(radios, "Number of simulated radios");
46
e8261171
JB		 47static int channels = 1;
48module_param(channels, int, 0444);
49MODULE_PARM_DESC(channels, "Number of concurrent channels");
69068036 50
a357d7f9
JB		 51static bool paged_rx = false;
52module_param(paged_rx, bool, 0644);
53MODULE_PARM_DESC(paged_rx, "Use paged SKBs for RX instead of linear ones");
54
4a5af9c2
LR		 55/**
56 * enum hwsim_regtest - the type of regulatory tests we offer
57 *
58 * These are the different values you can use for the regtest
59 * module parameter. This is useful to help test world roaming
60 * and the driver regulatory_hint() call and combinations of these.
61 * If you want to do specific alpha2 regulatory domain tests simply
62 * use the userspace regulatory request as that will be respected as
63 * well without the need of this module parameter. This is designed
64 * only for testing the driver regulatory request, world roaming
65 * and all possible combinations.
66 *
67 * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
68 * this is the default value.
69 * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
70 * hint, only one driver regulatory hint will be sent as such the
71 * secondary radios are expected to follow.
72 * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
73 * request with all radios reporting the same regulatory domain.
74 * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
75 * different regulatory domains requests. Expected behaviour is for
76 * an intersection to occur but each device will still use their
77 * respective regulatory requested domains. Subsequent radios will
78 * use the resulting intersection.
25985edc 79 * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We accomplish
4a5af9c2
LR		 80 * this by using a custom beacon-capable regulatory domain for the first
81 * radio. All other device world roam.
82 * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
83 * domain requests. All radios will adhere to this custom world regulatory
84 * domain.
85 * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
86 * domain requests. The first radio will adhere to the first custom world
87 * regulatory domain, the second one to the second custom world regulatory
88 * domain. All other devices will world roam.
89 * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain
90 * settings, only the first radio will send a regulatory domain request
91 * and use strict settings. The rest of the radios are expected to follow.
92 * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
93 * settings. All radios will adhere to this.
94 * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
95 * domain settings, combined with secondary driver regulatory domain
96 * settings. The first radio will get a strict regulatory domain setting
97 * using the first driver regulatory request and the second radio will use
98 * non-strict settings using the second driver regulatory request. All
99 * other devices should follow the intersection created between the
100 * first two.
101 * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
102 * at least 6 radios for a complete test. We will test in this order:
103 * 1 - driver custom world regulatory domain
104 * 2 - second custom world regulatory domain
105 * 3 - first driver regulatory domain request
106 * 4 - second driver regulatory domain request
107 * 5 - strict regulatory domain settings using the third driver regulatory
108 * domain request
109 * 6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
110 * regulatory requests.
111 */
112enum hwsim_regtest {
113 HWSIM_REGTEST_DISABLED = 0,
114 HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1,
115 HWSIM_REGTEST_DRIVER_REG_ALL = 2,
116 HWSIM_REGTEST_DIFF_COUNTRY = 3,
117 HWSIM_REGTEST_WORLD_ROAM = 4,
118 HWSIM_REGTEST_CUSTOM_WORLD = 5,
119 HWSIM_REGTEST_CUSTOM_WORLD_2 = 6,
120 HWSIM_REGTEST_STRICT_FOLLOW = 7,
121 HWSIM_REGTEST_STRICT_ALL = 8,
122 HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9,
123 HWSIM_REGTEST_ALL = 10,
124};
125
126/* Set to one of the HWSIM_REGTEST_* values above */
127static int regtest = HWSIM_REGTEST_DISABLED;
128module_param(regtest, int, 0444);
129MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run");
130
131static const char *hwsim_alpha2s[] = {
132 "FI",
133 "AL",
134 "US",
135 "DE",
136 "JP",
137 "AL",
138};
139
140static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = {
141 .n_reg_rules = 4,
142 .alpha2 = "99",
143 .reg_rules = {
144 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
145 REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
146 REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
147 REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
148 }
149};
150
151static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = {
152 .n_reg_rules = 2,
153 .alpha2 = "99",
154 .reg_rules = {
155 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
156 REG_RULE(5725-10, 5850+10, 40, 0, 30,
157 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
158 }
159};
160
8aa21e6f
JB		 161struct hwsim_vif_priv {
162 u32 magic;
fc6971d4
JM		 163 u8 bssid[ETH_ALEN];
164 bool assoc;
165 u16 aid;
8aa21e6f
JB		 166};
167
168#define HWSIM_VIF_MAGIC 0x69537748
169
170static inline void hwsim_check_magic(struct ieee80211_vif *vif)
171{
172 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
e8261171
JB		 173 WARN(vp->magic != HWSIM_VIF_MAGIC,
174 "Invalid VIF (%p) magic %#x, %pM, %d/%d\n",
175 vif, vp->magic, vif->addr, vif->type, vif->p2p);
8aa21e6f
JB		 176}
177
178static inline void hwsim_set_magic(struct ieee80211_vif *vif)
179{
180 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
181 vp->magic = HWSIM_VIF_MAGIC;
182}
183
184static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
185{
186 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
187 vp->magic = 0;
188}
acc1e7a3 189
81c06523
JB		 190struct hwsim_sta_priv {
191 u32 magic;
192};
193
e8261171 194#define HWSIM_STA_MAGIC 0x6d537749
81c06523
JB		 195
196static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
197{
198 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
5d6924ea 199 WARN_ON(sp->magic != HWSIM_STA_MAGIC);
81c06523
JB		 200}
201
202static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
203{
204 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
5d6924ea 205 sp->magic = HWSIM_STA_MAGIC;
81c06523
JB		 206}
207
208static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
209{
210 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
211 sp->magic = 0;
212}
213
e8261171
JB		 214struct hwsim_chanctx_priv {
215 u32 magic;
216};
217
218#define HWSIM_CHANCTX_MAGIC 0x6d53774a
219
220static inline void hwsim_check_chanctx_magic(struct ieee80211_chanctx_conf *c)
221{
222 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
223 WARN_ON(cp->magic != HWSIM_CHANCTX_MAGIC);
224}
225
226static inline void hwsim_set_chanctx_magic(struct ieee80211_chanctx_conf *c)
227{
228 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
229 cp->magic = HWSIM_CHANCTX_MAGIC;
230}
231
232static inline void hwsim_clear_chanctx_magic(struct ieee80211_chanctx_conf *c)
233{
234 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
235 cp->magic = 0;
236}
237
acc1e7a3
JM		 238static struct class *hwsim_class;
239
acc1e7a3
JM		 240static struct net_device *hwsim_mon; /* global monitor netdev */
241
22cad735
LR		 242#define CHAN2G(_freq) { \
243 .band = IEEE80211_BAND_2GHZ, \
244 .center_freq = (_freq), \
245 .hw_value = (_freq), \
246 .max_power = 20, \
247}
248
249#define CHAN5G(_freq) { \
250 .band = IEEE80211_BAND_5GHZ, \
251 .center_freq = (_freq), \
252 .hw_value = (_freq), \
253 .max_power = 20, \
254}
255
256static const struct ieee80211_channel hwsim_channels_2ghz[] = {
257 CHAN2G(2412), /* Channel 1 */
258 CHAN2G(2417), /* Channel 2 */
259 CHAN2G(2422), /* Channel 3 */
260 CHAN2G(2427), /* Channel 4 */
261 CHAN2G(2432), /* Channel 5 */
262 CHAN2G(2437), /* Channel 6 */
263 CHAN2G(2442), /* Channel 7 */
264 CHAN2G(2447), /* Channel 8 */
265 CHAN2G(2452), /* Channel 9 */
266 CHAN2G(2457), /* Channel 10 */
267 CHAN2G(2462), /* Channel 11 */
268 CHAN2G(2467), /* Channel 12 */
269 CHAN2G(2472), /* Channel 13 */
270 CHAN2G(2484), /* Channel 14 */
271};
acc1e7a3 272
22cad735
LR		 273static const struct ieee80211_channel hwsim_channels_5ghz[] = {
274 CHAN5G(5180), /* Channel 36 */
275 CHAN5G(5200), /* Channel 40 */
276 CHAN5G(5220), /* Channel 44 */
277 CHAN5G(5240), /* Channel 48 */
278
279 CHAN5G(5260), /* Channel 52 */
280 CHAN5G(5280), /* Channel 56 */
281 CHAN5G(5300), /* Channel 60 */
282 CHAN5G(5320), /* Channel 64 */
283
284 CHAN5G(5500), /* Channel 100 */
285 CHAN5G(5520), /* Channel 104 */
286 CHAN5G(5540), /* Channel 108 */
287 CHAN5G(5560), /* Channel 112 */
288 CHAN5G(5580), /* Channel 116 */
289 CHAN5G(5600), /* Channel 120 */
290 CHAN5G(5620), /* Channel 124 */
291 CHAN5G(5640), /* Channel 128 */
292 CHAN5G(5660), /* Channel 132 */
293 CHAN5G(5680), /* Channel 136 */
294 CHAN5G(5700), /* Channel 140 */
295
296 CHAN5G(5745), /* Channel 149 */
297 CHAN5G(5765), /* Channel 153 */
298 CHAN5G(5785), /* Channel 157 */
299 CHAN5G(5805), /* Channel 161 */
300 CHAN5G(5825), /* Channel 165 */
acc1e7a3
JM		 301};
302
303static const struct ieee80211_rate hwsim_rates[] = {
304 { .bitrate = 10 },
305 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
306 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
307 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
308 { .bitrate = 60 },
309 { .bitrate = 90 },
310 { .bitrate = 120 },
311 { .bitrate = 180 },
312 { .bitrate = 240 },
313 { .bitrate = 360 },
314 { .bitrate = 480 },
315 { .bitrate = 540 }
316};
317
0e057d73
JB		 318static spinlock_t hwsim_radio_lock;
319static struct list_head hwsim_radios;
320
acc1e7a3 321struct mac80211_hwsim_data {
0e057d73
JB		 322 struct list_head list;
323 struct ieee80211_hw *hw;
acc1e7a3 324 struct device *dev;
1b083ea4 325 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
22cad735
LR		 326 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
327 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
acc1e7a3
JM		 328 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
329
ef15aac6
JB		 330 struct mac_address addresses[2];
331
e8261171
JB		 332 struct ieee80211_channel *tmp_chan;
333 struct delayed_work roc_done;
334 struct delayed_work hw_scan;
335 struct cfg80211_scan_request *hw_scan_request;
336 struct ieee80211_vif *hw_scan_vif;
337 int scan_chan_idx;
338
acc1e7a3 339 struct ieee80211_channel *channel;
acc1e7a3
JM		 340 unsigned long beacon_int; /* in jiffies unit */
341 unsigned int rx_filter;
f74cb0f7
LR		 342 bool started, idle, scanning;
343 struct mutex mutex;
acc1e7a3 344 struct timer_list beacon_timer;
fc6971d4
JM		 345 enum ps_mode {
346 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
347 } ps;
348 bool ps_poll_pending;
349 struct dentry *debugfs;
350 struct dentry *debugfs_ps;
73606d00 351
7882513b 352 struct sk_buff_head pending; /* packets pending */
73606d00
DW		 353 /*
354 * Only radios in the same group can communicate together (the
355 * channel has to match too). Each bit represents a group. A
356 * radio can be in more then one group.
357 */
358 u64 group;
359 struct dentry *debugfs_group;
bdd7bd16
BG		 360
361 int power_level;
2f40b940
JC		 362
363 /* difference between this hw's clock and the real clock, in usecs */
45034bfb 364 s64 tsf_offset;
acc1e7a3
JM		 365};
366
367
368struct hwsim_radiotap_hdr {
369 struct ieee80211_radiotap_header hdr;
2f40b940 370 __le64 rt_tsft;
acc1e7a3
JM		 371 u8 rt_flags;
372 u8 rt_rate;
373 __le16 rt_channel;
374 __le16 rt_chbitmask;
ba2d3587 375} __packed;
acc1e7a3 376
7882513b
JL		 377/* MAC80211_HWSIM netlinf family */
378static struct genl_family hwsim_genl_family = {
379 .id = GENL_ID_GENERATE,
380 .hdrsize = 0,
381 .name = "MAC80211_HWSIM",
382 .version = 1,
383 .maxattr = HWSIM_ATTR_MAX,
384};
385
386/* MAC80211_HWSIM netlink policy */
387
388static struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
389 [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC,
390 .len = 6*sizeof(u8) },
391 [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC,
392 .len = 6*sizeof(u8) },
393 [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
394 .len = IEEE80211_MAX_DATA_LEN },
395 [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
396 [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
397 [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
398 [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC,
399 .len = IEEE80211_TX_MAX_RATES*sizeof(
400 struct hwsim_tx_rate)},
401 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
402};
acc1e7a3 403
d0cf9c0d
SH		 404static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
405 struct net_device *dev)
acc1e7a3
JM		 406{
407 /* TODO: allow packet injection */
408 dev_kfree_skb(skb);
6ed10654 409 return NETDEV_TX_OK;
acc1e7a3
JM		 410}
411
2f40b940
JC		 412static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
413{
414 struct timeval tv = ktime_to_timeval(ktime_get_real());
415 u64 now = tv.tv_sec * USEC_PER_SEC + tv.tv_usec;
416 return cpu_to_le64(now + data->tsf_offset);
417}
acc1e7a3 418
12ce8ba3
JC		 419static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
420 struct ieee80211_vif *vif)
421{
422 struct mac80211_hwsim_data *data = hw->priv;
423 return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
424}
425
426static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
427 struct ieee80211_vif *vif, u64 tsf)
428{
429 struct mac80211_hwsim_data *data = hw->priv;
45034bfb
TP		 430 u64 now = mac80211_hwsim_get_tsf(hw, vif);
431 s64 delta = tsf - now;
432
433 data->tsf_offset += delta;
12ce8ba3
JC		 434}
435
acc1e7a3 436static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
e8261171
JB		 437 struct sk_buff *tx_skb,
438 struct ieee80211_channel *chan)
acc1e7a3
JM		 439{
440 struct mac80211_hwsim_data *data = hw->priv;
441 struct sk_buff *skb;
442 struct hwsim_radiotap_hdr *hdr;
443 u16 flags;
444 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
445 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
446
447 if (!netif_running(hwsim_mon))
448 return;
449
450 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
451 if (skb == NULL)
452 return;
453
454 hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
455 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
456 hdr->hdr.it_pad = 0;
457 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
f248f105
JM		 458 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
459 (1 << IEEE80211_RADIOTAP_RATE) |
2f40b940 460 (1 << IEEE80211_RADIOTAP_TSFT) |
f248f105 461 (1 << IEEE80211_RADIOTAP_CHANNEL));
2f40b940 462 hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
acc1e7a3
JM		 463 hdr->rt_flags = 0;
464 hdr->rt_rate = txrate->bitrate / 5;
e8261171 465 hdr->rt_channel = cpu_to_le16(chan->center_freq);
acc1e7a3
JM		 466 flags = IEEE80211_CHAN_2GHZ;
467 if (txrate->flags & IEEE80211_RATE_ERP_G)
468 flags |= IEEE80211_CHAN_OFDM;
469 else
470 flags |= IEEE80211_CHAN_CCK;
471 hdr->rt_chbitmask = cpu_to_le16(flags);
472
473 skb->dev = hwsim_mon;
474 skb_set_mac_header(skb, 0);
475 skb->ip_summed = CHECKSUM_UNNECESSARY;
476 skb->pkt_type = PACKET_OTHERHOST;
f248f105 477 skb->protocol = htons(ETH_P_802_2);
acc1e7a3
JM		 478 memset(skb->cb, 0, sizeof(skb->cb));
479 netif_rx(skb);
480}
481
482
e8261171
JB		 483static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
484 const u8 *addr)
6c085227 485{
6c085227
JM		 486 struct sk_buff *skb;
487 struct hwsim_radiotap_hdr *hdr;
488 u16 flags;
489 struct ieee80211_hdr *hdr11;
490
491 if (!netif_running(hwsim_mon))
492 return;
493
494 skb = dev_alloc_skb(100);
495 if (skb == NULL)
496 return;
497
498 hdr = (struct hwsim_radiotap_hdr *) skb_put(skb, sizeof(*hdr));
499 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
500 hdr->hdr.it_pad = 0;
501 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
502 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
503 (1 << IEEE80211_RADIOTAP_CHANNEL));
504 hdr->rt_flags = 0;
505 hdr->rt_rate = 0;
e8261171 506 hdr->rt_channel = cpu_to_le16(chan->center_freq);
6c085227
JM		 507 flags = IEEE80211_CHAN_2GHZ;
508 hdr->rt_chbitmask = cpu_to_le16(flags);
509
510 hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
511 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
512 IEEE80211_STYPE_ACK);
513 hdr11->duration_id = cpu_to_le16(0);
514 memcpy(hdr11->addr1, addr, ETH_ALEN);
515
516 skb->dev = hwsim_mon;
517 skb_set_mac_header(skb, 0);
518 skb->ip_summed = CHECKSUM_UNNECESSARY;
519 skb->pkt_type = PACKET_OTHERHOST;
520 skb->protocol = htons(ETH_P_802_2);
521 memset(skb->cb, 0, sizeof(skb->cb));
522 netif_rx(skb);
523}
524
525
fc6971d4
JM		 526static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
527 struct sk_buff *skb)
528{
529 switch (data->ps) {
530 case PS_DISABLED:
531 return true;
532 case PS_ENABLED:
533 return false;
534 case PS_AUTO_POLL:
535 /* TODO: accept (some) Beacons by default and other frames only
536 * if pending PS-Poll has been sent */
537 return true;
538 case PS_MANUAL_POLL:
539 /* Allow unicast frames to own address if there is a pending
540 * PS-Poll */
541 if (data->ps_poll_pending &&
542 memcmp(data->hw->wiphy->perm_addr, skb->data + 4,
543 ETH_ALEN) == 0) {
544 data->ps_poll_pending = false;
545 return true;
546 }
547 return false;
548 }
549
550 return true;
551}
552
553
265dc7f0
JM		 554struct mac80211_hwsim_addr_match_data {
555 bool ret;
556 const u8 *addr;
557};
558
559static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
560 struct ieee80211_vif *vif)
561{
562 struct mac80211_hwsim_addr_match_data *md = data;
563 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
564 md->ret = true;
565}
566
567
568static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
569 const u8 *addr)
570{
571 struct mac80211_hwsim_addr_match_data md;
572
573 if (memcmp(addr, data->hw->wiphy->perm_addr, ETH_ALEN) == 0)
574 return true;
575
576 md.ret = false;
577 md.addr = addr;
578 ieee80211_iterate_active_interfaces_atomic(data->hw,
8b2c9824 579 IEEE80211_IFACE_ITER_NORMAL,
265dc7f0
JM		 580 mac80211_hwsim_addr_iter,
581 &md);
582
583 return md.ret;
584}
585
7882513b
JL		 586static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
587 struct sk_buff *my_skb,
15e47304 588 int dst_portid)
7882513b
JL		 589{
590 struct sk_buff *skb;
591 struct mac80211_hwsim_data *data = hw->priv;
592 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
593 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
594 void *msg_head;
595 unsigned int hwsim_flags = 0;
596 int i;
597 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
598
7882513b
JL		 599 if (data->ps != PS_DISABLED)
600 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
601 /* If the queue contains MAX_QUEUE skb's drop some */
602 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
603 /* Droping until WARN_QUEUE level */
604 while (skb_queue_len(&data->pending) >= WARN_QUEUE)
605 skb_dequeue(&data->pending);
606 }
607
58050fce 608 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
7882513b
JL		 609 if (skb == NULL)
610 goto nla_put_failure;
611
612 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
613 HWSIM_CMD_FRAME);
614 if (msg_head == NULL) {
615 printk(KERN_DEBUG "mac80211_hwsim: problem with msg_head\n");
616 goto nla_put_failure;
617 }
618
633c9389
DM		 619 if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
620 sizeof(struct mac_address), data->addresses[1].addr))
621 goto nla_put_failure;
265dc7f0 622
7882513b 623 /* We get the skb->data */
633c9389
DM		 624 if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
625 goto nla_put_failure;
7882513b
JL		 626
627 /* We get the flags for this transmission, and we translate them to
628 wmediumd flags */
629
630 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
631 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
632
633 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
634 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
635
633c9389
DM		 636 if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
637 goto nla_put_failure;
7882513b
JL		 638
639 /* We get the tx control (rate and retries) info*/
640
641 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
642 tx_attempts[i].idx = info->status.rates[i].idx;
643 tx_attempts[i].count = info->status.rates[i].count;
644 }
645
633c9389
DM		 646 if (nla_put(skb, HWSIM_ATTR_TX_INFO,
647 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
648 tx_attempts))
649 goto nla_put_failure;
7882513b
JL		 650
651 /* We create a cookie to identify this skb */
633c9389
DM		 652 if (nla_put_u64(skb, HWSIM_ATTR_COOKIE, (unsigned long) my_skb))
653 goto nla_put_failure;
7882513b
JL		 654
655 genlmsg_end(skb, msg_head);
15e47304 656 genlmsg_unicast(&init_net, skb, dst_portid);
7882513b
JL		 657
658 /* Enqueue the packet */
659 skb_queue_tail(&data->pending, my_skb);
660 return;
661
662nla_put_failure:
c393862f 663 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 664}
665
e8261171
JB		 666static bool hwsim_chans_compat(struct ieee80211_channel *c1,
667 struct ieee80211_channel *c2)
668{
669 if (!c1 || !c2)
670 return false;
671
672 return c1->center_freq == c2->center_freq;
673}
674
675struct tx_iter_data {
676 struct ieee80211_channel *channel;
677 bool receive;
678};
679
680static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
681 struct ieee80211_vif *vif)
682{
683 struct tx_iter_data *data = _data;
684
685 if (!vif->chanctx_conf)
686 return;
687
688 if (!hwsim_chans_compat(data->channel,
4bf88530 689 rcu_dereference(vif->chanctx_conf)->def.chan))
e8261171
JB		 690 return;
691
692 data->receive = true;
693}
694
7882513b 695static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
e8261171
JB		 696 struct sk_buff *skb,
697 struct ieee80211_channel *chan)
acc1e7a3 698{
0e057d73
JB		 699 struct mac80211_hwsim_data *data = hw->priv, *data2;
700 bool ack = false;
e36cfdc9 701 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
acc1e7a3 702 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
e36cfdc9 703 struct ieee80211_rx_status rx_status;
f483ad25 704 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
acc1e7a3
JM		 705
706 memset(&rx_status, 0, sizeof(rx_status));
f4bda337 707 rx_status.flag |= RX_FLAG_MACTIME_START;
e8261171
JB		 708 rx_status.freq = chan->center_freq;
709 rx_status.band = chan->band;
e6a9854b 710 rx_status.rate_idx = info->control.rates[0].idx;
281ed297
JM		 711 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
712 rx_status.flag |= RX_FLAG_HT;
713 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
714 rx_status.flag |= RX_FLAG_40MHZ;
715 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
716 rx_status.flag |= RX_FLAG_SHORT_GI;
4b14c96d 717 /* TODO: simulate real signal strength (and optional packet loss) */
bdd7bd16 718 rx_status.signal = data->power_level - 50;
acc1e7a3 719
fc6971d4
JM		 720 if (data->ps != PS_DISABLED)
721 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
722
90e3012e
JB		 723 /* release the skb's source info */
724 skb_orphan(skb);
c0acf38e 725 skb_dst_drop(skb);
90e3012e
JB		 726 skb->mark = 0;
727 secpath_reset(skb);
728 nf_reset(skb);
729
acc1e7a3 730 /* Copy skb to all enabled radios that are on the current frequency */
0e057d73
JB		 731 spin_lock(&hwsim_radio_lock);
732 list_for_each_entry(data2, &hwsim_radios, list) {
acc1e7a3 733 struct sk_buff *nskb;
f483ad25 734 struct ieee80211_mgmt *mgmt;
e8261171
JB		 735 struct tx_iter_data tx_iter_data = {
736 .receive = false,
737 .channel = chan,
738 };
acc1e7a3 739
0e057d73 740 if (data == data2)
acc1e7a3 741 continue;
0e057d73 742
e8261171
JB		 743 if (!data2->started || (data2->idle && !data2->tmp_chan) ||
744 !hwsim_ps_rx_ok(data2, skb))
acc1e7a3
JM		 745 continue;
746
e8261171
JB		 747 if (!(data->group & data2->group))
748 continue;
749
750 if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
751 !hwsim_chans_compat(chan, data2->channel)) {
752 ieee80211_iterate_active_interfaces_atomic(
8b2c9824
JB		 753 data2->hw, IEEE80211_IFACE_ITER_NORMAL,
754 mac80211_hwsim_tx_iter, &tx_iter_data);
e8261171
JB		 755 if (!tx_iter_data.receive)
756 continue;
757 }
758
90b9e446
JB		 759 /*
760 * reserve some space for our vendor and the normal
761 * radiotap header, since we're copying anyway
762 */
a357d7f9
JB		 763 if (skb->len < PAGE_SIZE && paged_rx) {
764 struct page *page = alloc_page(GFP_ATOMIC);
765
766 if (!page)
767 continue;
768
769 nskb = dev_alloc_skb(128);
770 if (!nskb) {
771 __free_page(page);
772 continue;
773 }
774
775 memcpy(page_address(page), skb->data, skb->len);
776 skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
777 } else {
778 nskb = skb_copy(skb, GFP_ATOMIC);
779 if (!nskb)
780 continue;
781 }
acc1e7a3 782
265dc7f0 783 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
0e057d73 784 ack = true;
f483ad25
JC		 785
786 /* set bcn timestamp relative to receiver mactime */
4e13f092 787 rx_status.mactime =
f483ad25
JC		 788 le64_to_cpu(__mac80211_hwsim_get_tsf(data2));
789 mgmt = (struct ieee80211_mgmt *) nskb->data;
790 if (ieee80211_is_beacon(mgmt->frame_control) ||
791 ieee80211_is_probe_resp(mgmt->frame_control))
792 mgmt->u.beacon.timestamp = cpu_to_le64(
793 rx_status.mactime +
b6ba82c8 794 (data->tsf_offset - data2->tsf_offset) +
f483ad25
JC		 795 24 * 8 * 10 / txrate->bitrate);
796
90b9e446
JB		 797#if 0
798 /*
799 * Don't enable this code by default as the OUI 00:00:00
800 * is registered to Xerox so we shouldn't use it here, it
801 * might find its way into pcap files.
802 * Note that this code requires the headroom in the SKB
803 * that was allocated earlier.
804 */
805 rx_status.vendor_radiotap_oui[0] = 0x00;
806 rx_status.vendor_radiotap_oui[1] = 0x00;
807 rx_status.vendor_radiotap_oui[2] = 0x00;
808 rx_status.vendor_radiotap_subns = 127;
809 /*
810 * Radiotap vendor namespaces can (and should) also be
811 * split into fields by using the standard radiotap
812 * presence bitmap mechanism. Use just BIT(0) here for
813 * the presence bitmap.
814 */
815 rx_status.vendor_radiotap_bitmap = BIT(0);
816 /* We have 8 bytes of (dummy) data */
817 rx_status.vendor_radiotap_len = 8;
818 /* For testing, also require it to be aligned */
819 rx_status.vendor_radiotap_align = 8;
820 /* push the data */
821 memcpy(skb_push(nskb, 8), "ABCDEFGH", 8);
822#endif
823
f1d58c25
JB		 824 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
825 ieee80211_rx_irqsafe(data2->hw, nskb);
acc1e7a3 826 }
0e057d73 827 spin_unlock(&hwsim_radio_lock);
acc1e7a3 828
e36cfdc9
JM		 829 return ack;
830}
831
36323f81
TH		 832static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
833 struct ieee80211_tx_control *control,
834 struct sk_buff *skb)
e36cfdc9 835{
e8261171
JB		 836 struct mac80211_hwsim_data *data = hw->priv;
837 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
838 struct ieee80211_chanctx_conf *chanctx_conf;
839 struct ieee80211_channel *channel;
0e057d73 840 bool ack;
15e47304 841 u32 _portid;
e36cfdc9 842
e8261171 843 if (WARN_ON(skb->len < 10)) {
e36cfdc9
JM		 844 /* Should not happen; just a sanity check for addr1 use */
845 dev_kfree_skb(skb);
7bb45683 846 return;
e36cfdc9
JM		 847 }
848
e8261171
JB		 849 if (channels == 1) {
850 channel = data->channel;
851 } else if (txi->hw_queue == 4) {
852 channel = data->tmp_chan;
853 } else {
854 chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf);
855 if (chanctx_conf)
4bf88530 856 channel = chanctx_conf->def.chan;
e8261171
JB		 857 else
858 channel = NULL;
859 }
860
861 if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
862 dev_kfree_skb(skb);
863 return;
864 }
865
866 if (data->idle && !data->tmp_chan) {
867 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
868 dev_kfree_skb(skb);
869 return;
870 }
871
872 if (txi->control.vif)
873 hwsim_check_magic(txi->control.vif);
874 if (control->sta)
875 hwsim_check_sta_magic(control->sta);
876
877 txi->rate_driver_data[0] = channel;
878
879 mac80211_hwsim_monitor_rx(hw, skb, channel);
880
7882513b 881 /* wmediumd mode check */
15e47304 882 _portid = ACCESS_ONCE(wmediumd_portid);
7882513b 883
15e47304
EB		 884 if (_portid)
885 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
7882513b
JL		 886
887 /* NO wmediumd detected, perfect medium simulation */
e8261171 888 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
7882513b 889
6c085227
JM		 890 if (ack && skb->len >= 16) {
891 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
e8261171 892 mac80211_hwsim_monitor_ack(channel, hdr->addr2);
6c085227 893 }
e36cfdc9 894
e6a9854b 895 ieee80211_tx_info_clear_status(txi);
2a4ffa4c
JC		 896
897 /* frame was transmitted at most favorable rate at first attempt */
898 txi->control.rates[0].count = 1;
899 txi->control.rates[1].idx = -1;
900
e6a9854b
JB		 901 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
902 txi->flags |= IEEE80211_TX_STAT_ACK;
acc1e7a3 903 ieee80211_tx_status_irqsafe(hw, skb);
acc1e7a3
JM		 904}
905
906
907static int mac80211_hwsim_start(struct ieee80211_hw *hw)
908{
909 struct mac80211_hwsim_data *data = hw->priv;
c96c31e4 910 wiphy_debug(hw->wiphy, "%s\n", __func__);
3db1cd5c 911 data->started = true;
acc1e7a3
JM		 912 return 0;
913}
914
915
916static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
917{
918 struct mac80211_hwsim_data *data = hw->priv;
3db1cd5c 919 data->started = false;
ab1ef980 920 del_timer(&data->beacon_timer);
c96c31e4 921 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 922}
923
924
925static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
1ed32e4f 926 struct ieee80211_vif *vif)
acc1e7a3 927{
c96c31e4 928 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 929 __func__, ieee80211_vif_type_p2p(vif),
930 vif->addr);
1ed32e4f 931 hwsim_set_magic(vif);
e8261171
JB		 932
933 vif->cab_queue = 0;
934 vif->hw_queue[IEEE80211_AC_VO] = 0;
935 vif->hw_queue[IEEE80211_AC_VI] = 1;
936 vif->hw_queue[IEEE80211_AC_BE] = 2;
937 vif->hw_queue[IEEE80211_AC_BK] = 3;
938
acc1e7a3
JM		 939 return 0;
940}
941
942
c35d0270
JB		 943static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
944 struct ieee80211_vif *vif,
2ca27bcf
JB		 945 enum nl80211_iftype newtype,
946 bool newp2p)
c35d0270 947{
2ca27bcf 948 newtype = ieee80211_iftype_p2p(newtype, newp2p);
c35d0270
JB		 949 wiphy_debug(hw->wiphy,
950 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
2ca27bcf
JB		 951 __func__, ieee80211_vif_type_p2p(vif),
952 newtype, vif->addr);
c35d0270
JB		 953 hwsim_check_magic(vif);
954
955 return 0;
956}
957
acc1e7a3 958static void mac80211_hwsim_remove_interface(
1ed32e4f 959 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
acc1e7a3 960{
c96c31e4 961 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 962 __func__, ieee80211_vif_type_p2p(vif),
963 vif->addr);
1ed32e4f
JB		 964 hwsim_check_magic(vif);
965 hwsim_clear_magic(vif);
acc1e7a3
JM		 966}
967
e8261171
JB		 968static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
969 struct sk_buff *skb,
970 struct ieee80211_channel *chan)
971{
972 u32 _pid = ACCESS_ONCE(wmediumd_portid);
973
974 mac80211_hwsim_monitor_rx(hw, skb, chan);
975
976 if (_pid)
977 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
978
979 mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
980 dev_kfree_skb(skb);
981}
acc1e7a3
JM		 982
983static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
984 struct ieee80211_vif *vif)
985{
986 struct ieee80211_hw *hw = arg;
acc1e7a3 987 struct sk_buff *skb;
acc1e7a3 988
8aa21e6f
JB		 989 hwsim_check_magic(vif);
990
55b39619 991 if (vif->type != NL80211_IFTYPE_AP &&
2b2d7795
JB		 992 vif->type != NL80211_IFTYPE_MESH_POINT &&
993 vif->type != NL80211_IFTYPE_ADHOC)
acc1e7a3
JM		 994 return;
995
996 skb = ieee80211_beacon_get(hw, vif);
997 if (skb == NULL)
998 return;
7882513b 999
e8261171 1000 mac80211_hwsim_tx_frame(hw, skb,
4bf88530 1001 rcu_dereference(vif->chanctx_conf)->def.chan);
acc1e7a3
JM		 1002}
1003
1004
1005static void mac80211_hwsim_beacon(unsigned long arg)
1006{
1007 struct ieee80211_hw *hw = (struct ieee80211_hw *) arg;
1008 struct mac80211_hwsim_data *data = hw->priv;
1009
4c4c671a 1010 if (!data->started)
acc1e7a3
JM		 1011 return;
1012
f248f105 1013 ieee80211_iterate_active_interfaces_atomic(
8b2c9824
JB		 1014 hw, IEEE80211_IFACE_ITER_NORMAL,
1015 mac80211_hwsim_beacon_tx, hw);
acc1e7a3
JM		 1016
1017 data->beacon_timer.expires = jiffies + data->beacon_int;
1018 add_timer(&data->beacon_timer);
1019}
1020
0aaffa9b
JB		 1021static const char *hwsim_chantypes[] = {
1022 [NL80211_CHAN_NO_HT] = "noht",
1023 [NL80211_CHAN_HT20] = "ht20",
1024 [NL80211_CHAN_HT40MINUS] = "ht40-",
1025 [NL80211_CHAN_HT40PLUS] = "ht40+",
1026};
acc1e7a3 1027
e8975581 1028static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
acc1e7a3
JM		 1029{
1030 struct mac80211_hwsim_data *data = hw->priv;
e8975581 1031 struct ieee80211_conf *conf = &hw->conf;
0f78231b
JB		 1032 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
1033 [IEEE80211_SMPS_AUTOMATIC] = "auto",
1034 [IEEE80211_SMPS_OFF] = "off",
1035 [IEEE80211_SMPS_STATIC] = "static",
1036 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
1037 };
1038
c96c31e4
JP		 1039 wiphy_debug(hw->wiphy,
1040 "%s (freq=%d/%s idle=%d ps=%d smps=%s)\n",
1041 __func__,
e8261171 1042 conf->channel ? conf->channel->center_freq : 0,
c96c31e4
JP		 1043 hwsim_chantypes[conf->channel_type],
1044 !!(conf->flags & IEEE80211_CONF_IDLE),
1045 !!(conf->flags & IEEE80211_CONF_PS),
1046 smps_modes[conf->smps_mode]);
acc1e7a3 1047
70541839
JM		 1048 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1049
acc1e7a3 1050 data->channel = conf->channel;
e8261171
JB		 1051
1052 WARN_ON(data->channel && channels > 1);
1053
bdd7bd16 1054 data->power_level = conf->power_level;
4c4c671a 1055 if (!data->started || !data->beacon_int)
acc1e7a3
JM		 1056 del_timer(&data->beacon_timer);
1057 else
1058 mod_timer(&data->beacon_timer, jiffies + data->beacon_int);
1059
1060 return 0;
1061}
1062
1063
1064static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
1065 unsigned int changed_flags,
3ac64bee 1066 unsigned int *total_flags,u64 multicast)
acc1e7a3
JM		 1067{
1068 struct mac80211_hwsim_data *data = hw->priv;
1069
c96c31e4 1070 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 1071
1072 data->rx_filter = 0;
1073 if (*total_flags & FIF_PROMISC_IN_BSS)
1074 data->rx_filter |= FIF_PROMISC_IN_BSS;
1075 if (*total_flags & FIF_ALLMULTI)
1076 data->rx_filter |= FIF_ALLMULTI;
1077
1078 *total_flags = data->rx_filter;
1079}
1080
8aa21e6f
JB		 1081static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
1082 struct ieee80211_vif *vif,
1083 struct ieee80211_bss_conf *info,
1084 u32 changed)
1085{
fc6971d4 1086 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
57c4d7b4 1087 struct mac80211_hwsim_data *data = hw->priv;
fc6971d4 1088
8aa21e6f 1089 hwsim_check_magic(vif);
fe63bfa3 1090
c96c31e4 1091 wiphy_debug(hw->wiphy, "%s(changed=0x%x)\n", __func__, changed);
fe63bfa3 1092
2d0ddec5 1093 if (changed & BSS_CHANGED_BSSID) {
c96c31e4
JP		 1094 wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
1095 __func__, info->bssid);
2d0ddec5
JB		 1096 memcpy(vp->bssid, info->bssid, ETH_ALEN);
1097 }
1098
fe63bfa3 1099 if (changed & BSS_CHANGED_ASSOC) {
c96c31e4
JP		 1100 wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
1101 info->assoc, info->aid);
fc6971d4
JM		 1102 vp->assoc = info->assoc;
1103 vp->aid = info->aid;
fe63bfa3
JM		 1104 }
1105
57c4d7b4 1106 if (changed & BSS_CHANGED_BEACON_INT) {
c96c31e4 1107 wiphy_debug(hw->wiphy, " BCNINT: %d\n", info->beacon_int);
57c4d7b4 1108 data->beacon_int = 1024 * info->beacon_int / 1000 * HZ / 1000;
d91f190c 1109 if (WARN_ON(!data->beacon_int))
57c4d7b4 1110 data->beacon_int = 1;
ffed1307
JM		 1111 if (data->started)
1112 mod_timer(&data->beacon_timer,
1113 jiffies + data->beacon_int);
57c4d7b4
JB		 1114 }
1115
fe63bfa3 1116 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
c96c31e4
JP		 1117 wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
1118 info->use_cts_prot);
fe63bfa3
JM		 1119 }
1120
1121 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
c96c31e4
JP		 1122 wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
1123 info->use_short_preamble);
fe63bfa3
JM		 1124 }
1125
1126 if (changed & BSS_CHANGED_ERP_SLOT) {
c96c31e4 1127 wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
fe63bfa3
JM		 1128 }
1129
1130 if (changed & BSS_CHANGED_HT) {
4bf88530
JB		 1131 wiphy_debug(hw->wiphy, " HT: op_mode=0x%x\n",
1132 info->ht_operation_mode);
fe63bfa3
JM		 1133 }
1134
1135 if (changed & BSS_CHANGED_BASIC_RATES) {
c96c31e4
JP		 1136 wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
1137 (unsigned long long) info->basic_rates);
fe63bfa3 1138 }
cbc668a7
JB		 1139
1140 if (changed & BSS_CHANGED_TXPOWER)
1141 wiphy_debug(hw->wiphy, " TX Power: %d dBm\n", info->txpower);
8aa21e6f
JB		 1142}
1143
1d669cbf
JB		 1144static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
1145 struct ieee80211_vif *vif,
1146 struct ieee80211_sta *sta)
1147{
1148 hwsim_check_magic(vif);
1149 hwsim_set_sta_magic(sta);
1150
1151 return 0;
1152}
1153
1154static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
1155 struct ieee80211_vif *vif,
1156 struct ieee80211_sta *sta)
1157{
1158 hwsim_check_magic(vif);
1159 hwsim_clear_sta_magic(sta);
1160
1161 return 0;
1162}
1163
8aa21e6f
JB		 1164static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
1165 struct ieee80211_vif *vif,
17741cdc
JB		 1166 enum sta_notify_cmd cmd,
1167 struct ieee80211_sta *sta)
8aa21e6f
JB		 1168{
1169 hwsim_check_magic(vif);
1d669cbf 1170
81c06523 1171 switch (cmd) {
89fad578
CL		 1172 case STA_NOTIFY_SLEEP:
1173 case STA_NOTIFY_AWAKE:
1174 /* TODO: make good use of these flags */
1175 break;
1d669cbf
JB		 1176 default:
1177 WARN(1, "Invalid sta notify: %d\n", cmd);
1178 break;
81c06523
JB		 1179 }
1180}
1181
1182static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
1183 struct ieee80211_sta *sta,
1184 bool set)
1185{
1186 hwsim_check_sta_magic(sta);
1187 return 0;
8aa21e6f 1188}
acc1e7a3 1189
1e898ff8 1190static int mac80211_hwsim_conf_tx(
8a3a3c85
EP		 1191 struct ieee80211_hw *hw,
1192 struct ieee80211_vif *vif, u16 queue,
1e898ff8
JM		 1193 const struct ieee80211_tx_queue_params *params)
1194{
c96c31e4
JP		 1195 wiphy_debug(hw->wiphy,
1196 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1197 __func__, queue,
1198 params->txop, params->cw_min,
1199 params->cw_max, params->aifs);
1e898ff8
JM		 1200 return 0;
1201}
1202
1289723e
HS		 1203static int mac80211_hwsim_get_survey(
1204 struct ieee80211_hw *hw, int idx,
1205 struct survey_info *survey)
1206{
1207 struct ieee80211_conf *conf = &hw->conf;
1208
c96c31e4 1209 wiphy_debug(hw->wiphy, "%s (idx=%d)\n", __func__, idx);
1289723e
HS		 1210
1211 if (idx != 0)
1212 return -ENOENT;
1213
1214 /* Current channel */
1215 survey->channel = conf->channel;
1216
1217 /*
1218 * Magically conjured noise level --- this is only ok for simulated hardware.
1219 *
1220 * A real driver which cannot determine the real channel noise MUST NOT
1221 * report any noise, especially not a magically conjured one :-)
1222 */
1223 survey->filled = SURVEY_INFO_NOISE_DBM;
1224 survey->noise = -92;
1225
1226 return 0;
1227}
1228
aff89a9b
JB		 1229#ifdef CONFIG_NL80211_TESTMODE
1230/*
1231 * This section contains example code for using netlink
1232 * attributes with the testmode command in nl80211.
1233 */
1234
1235/* These enums need to be kept in sync with userspace */
1236enum hwsim_testmode_attr {
1237 __HWSIM_TM_ATTR_INVALID = 0,
1238 HWSIM_TM_ATTR_CMD = 1,
1239 HWSIM_TM_ATTR_PS = 2,
1240
1241 /* keep last */
1242 __HWSIM_TM_ATTR_AFTER_LAST,
1243 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1244};
1245
1246enum hwsim_testmode_cmd {
1247 HWSIM_TM_CMD_SET_PS = 0,
1248 HWSIM_TM_CMD_GET_PS = 1,
4d6d0ae2
JB		 1249 HWSIM_TM_CMD_STOP_QUEUES = 2,
1250 HWSIM_TM_CMD_WAKE_QUEUES = 3,
aff89a9b
JB		 1251};
1252
1253static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1254 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1255 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1256};
1257
1258static int hwsim_fops_ps_write(void *dat, u64 val);
1259
5bc38193
JB		 1260static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
1261 void *data, int len)
aff89a9b
JB		 1262{
1263 struct mac80211_hwsim_data *hwsim = hw->priv;
1264 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1265 struct sk_buff *skb;
1266 int err, ps;
1267
1268 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
1269 hwsim_testmode_policy);
1270 if (err)
1271 return err;
1272
1273 if (!tb[HWSIM_TM_ATTR_CMD])
1274 return -EINVAL;
1275
1276 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1277 case HWSIM_TM_CMD_SET_PS:
1278 if (!tb[HWSIM_TM_ATTR_PS])
1279 return -EINVAL;
1280 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1281 return hwsim_fops_ps_write(hwsim, ps);
1282 case HWSIM_TM_CMD_GET_PS:
1283 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1284 nla_total_size(sizeof(u32)));
1285 if (!skb)
1286 return -ENOMEM;
633c9389
DM		 1287 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
1288 goto nla_put_failure;
aff89a9b 1289 return cfg80211_testmode_reply(skb);
4d6d0ae2
JB		 1290 case HWSIM_TM_CMD_STOP_QUEUES:
1291 ieee80211_stop_queues(hw);
1292 return 0;
1293 case HWSIM_TM_CMD_WAKE_QUEUES:
1294 ieee80211_wake_queues(hw);
1295 return 0;
aff89a9b
JB		 1296 default:
1297 return -EOPNOTSUPP;
1298 }
1299
1300 nla_put_failure:
1301 kfree_skb(skb);
1302 return -ENOBUFS;
1303}
1304#endif
1305
8b73d13a
JB		 1306static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1307 struct ieee80211_vif *vif,
1308 enum ieee80211_ampdu_mlme_action action,
0b01f030
JB		 1309 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
1310 u8 buf_size)
8b73d13a
JB		 1311{
1312 switch (action) {
1313 case IEEE80211_AMPDU_TX_START:
1314 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1315 break;
18b559d5
JB		 1316 case IEEE80211_AMPDU_TX_STOP_CONT:
1317 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1318 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
8b73d13a
JB		 1319 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1320 break;
1321 case IEEE80211_AMPDU_TX_OPERATIONAL:
1322 break;
1323 case IEEE80211_AMPDU_RX_START:
1324 case IEEE80211_AMPDU_RX_STOP:
1325 break;
1326 default:
1327 return -EOPNOTSUPP;
1328 }
1329
1330 return 0;
1331}
1332
a80f7c0b
JB		 1333static void mac80211_hwsim_flush(struct ieee80211_hw *hw, bool drop)
1334{
7882513b 1335 /* Not implemented, queues only on kernel side */
a80f7c0b
JB		 1336}
1337
e8261171 1338static void hw_scan_work(struct work_struct *work)
69068036 1339{
e8261171
JB		 1340 struct mac80211_hwsim_data *hwsim =
1341 container_of(work, struct mac80211_hwsim_data, hw_scan.work);
1342 struct cfg80211_scan_request *req = hwsim->hw_scan_request;
1343 int dwell, i;
69068036 1344
e8261171
JB		 1345 mutex_lock(&hwsim->mutex);
1346 if (hwsim->scan_chan_idx >= req->n_channels) {
1347 wiphy_debug(hwsim->hw->wiphy, "hw scan complete\n");
1348 ieee80211_scan_completed(hwsim->hw, false);
1349 hwsim->hw_scan_request = NULL;
1350 hwsim->hw_scan_vif = NULL;
1351 hwsim->tmp_chan = NULL;
1352 mutex_unlock(&hwsim->mutex);
1353 return;
1354 }
1355
1356 wiphy_debug(hwsim->hw->wiphy, "hw scan %d MHz\n",
1357 req->channels[hwsim->scan_chan_idx]->center_freq);
1358
1359 hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
1360 if (hwsim->tmp_chan->flags & IEEE80211_CHAN_PASSIVE_SCAN ||
1361 !req->n_ssids) {
1362 dwell = 120;
1363 } else {
1364 dwell = 30;
1365 /* send probes */
1366 for (i = 0; i < req->n_ssids; i++) {
1367 struct sk_buff *probe;
1368
1369 probe = ieee80211_probereq_get(hwsim->hw,
1370 hwsim->hw_scan_vif,
1371 req->ssids[i].ssid,
1372 req->ssids[i].ssid_len,
b9a9ada1 1373 req->ie_len);
e8261171
JB		 1374 if (!probe)
1375 continue;
b9a9ada1
JB		 1376
1377 if (req->ie_len)
1378 memcpy(skb_put(probe, req->ie_len), req->ie,
1379 req->ie_len);
1380
e8261171
JB		 1381 local_bh_disable();
1382 mac80211_hwsim_tx_frame(hwsim->hw, probe,
1383 hwsim->tmp_chan);
1384 local_bh_enable();
1385 }
1386 }
1387 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
1388 msecs_to_jiffies(dwell));
1389 hwsim->scan_chan_idx++;
1390 mutex_unlock(&hwsim->mutex);
69068036
JB		 1391}
1392
1393static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
a060bbfe 1394 struct ieee80211_vif *vif,
69068036
JB		 1395 struct cfg80211_scan_request *req)
1396{
e8261171 1397 struct mac80211_hwsim_data *hwsim = hw->priv;
69068036 1398
e8261171
JB		 1399 mutex_lock(&hwsim->mutex);
1400 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1401 mutex_unlock(&hwsim->mutex);
1402 return -EBUSY;
1403 }
1404 hwsim->hw_scan_request = req;
1405 hwsim->hw_scan_vif = vif;
1406 hwsim->scan_chan_idx = 0;
1407 mutex_unlock(&hwsim->mutex);
69068036 1408
e8261171 1409 wiphy_debug(hw->wiphy, "hwsim hw_scan request\n");
69068036 1410
e8261171 1411 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
69068036
JB		 1412
1413 return 0;
1414}
1415
e8261171
JB		 1416static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
1417 struct ieee80211_vif *vif)
1418{
1419 struct mac80211_hwsim_data *hwsim = hw->priv;
1420
1421 wiphy_debug(hw->wiphy, "hwsim cancel_hw_scan\n");
1422
1423 cancel_delayed_work_sync(&hwsim->hw_scan);
1424
1425 mutex_lock(&hwsim->mutex);
1426 ieee80211_scan_completed(hwsim->hw, true);
1427 hwsim->tmp_chan = NULL;
1428 hwsim->hw_scan_request = NULL;
1429 hwsim->hw_scan_vif = NULL;
1430 mutex_unlock(&hwsim->mutex);
1431}
1432
f74cb0f7
LR		 1433static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw)
1434{
1435 struct mac80211_hwsim_data *hwsim = hw->priv;
1436
1437 mutex_lock(&hwsim->mutex);
1438
1439 if (hwsim->scanning) {
1440 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
1441 goto out;
1442 }
1443
1444 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
1445 hwsim->scanning = true;
1446
1447out:
1448 mutex_unlock(&hwsim->mutex);
1449}
1450
1451static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw)
1452{
1453 struct mac80211_hwsim_data *hwsim = hw->priv;
1454
1455 mutex_lock(&hwsim->mutex);
1456
1457 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
23ff98fc 1458 hwsim->scanning = false;
f74cb0f7
LR		 1459
1460 mutex_unlock(&hwsim->mutex);
1461}
1462
e8261171
JB		 1463static void hw_roc_done(struct work_struct *work)
1464{
1465 struct mac80211_hwsim_data *hwsim =
1466 container_of(work, struct mac80211_hwsim_data, roc_done.work);
1467
1468 mutex_lock(&hwsim->mutex);
1469 ieee80211_remain_on_channel_expired(hwsim->hw);
1470 hwsim->tmp_chan = NULL;
1471 mutex_unlock(&hwsim->mutex);
1472
1473 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC expired\n");
1474}
1475
1476static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
49884568 1477 struct ieee80211_vif *vif,
e8261171 1478 struct ieee80211_channel *chan,
e8261171
JB		 1479 int duration)
1480{
1481 struct mac80211_hwsim_data *hwsim = hw->priv;
1482
1483 mutex_lock(&hwsim->mutex);
1484 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1485 mutex_unlock(&hwsim->mutex);
1486 return -EBUSY;
1487 }
1488
1489 hwsim->tmp_chan = chan;
1490 mutex_unlock(&hwsim->mutex);
1491
1492 wiphy_debug(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
1493 chan->center_freq, duration);
1494
1495 ieee80211_ready_on_channel(hw);
1496
1497 ieee80211_queue_delayed_work(hw, &hwsim->roc_done,
1498 msecs_to_jiffies(duration));
1499 return 0;
1500}
1501
1502static int mac80211_hwsim_croc(struct ieee80211_hw *hw)
1503{
1504 struct mac80211_hwsim_data *hwsim = hw->priv;
1505
1506 cancel_delayed_work_sync(&hwsim->roc_done);
1507
1508 mutex_lock(&hwsim->mutex);
1509 hwsim->tmp_chan = NULL;
1510 mutex_unlock(&hwsim->mutex);
1511
1512 wiphy_debug(hw->wiphy, "hwsim ROC canceled\n");
1513
1514 return 0;
1515}
1516
1517static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
1518 struct ieee80211_chanctx_conf *ctx)
1519{
1520 hwsim_set_chanctx_magic(ctx);
4bf88530
JB		 1521 wiphy_debug(hw->wiphy,
1522 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1523 ctx->def.chan->center_freq, ctx->def.width,
1524 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1525 return 0;
1526}
1527
1528static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
1529 struct ieee80211_chanctx_conf *ctx)
1530{
4bf88530
JB		 1531 wiphy_debug(hw->wiphy,
1532 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1533 ctx->def.chan->center_freq, ctx->def.width,
1534 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1535 hwsim_check_chanctx_magic(ctx);
1536 hwsim_clear_chanctx_magic(ctx);
1537}
1538
1539static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
1540 struct ieee80211_chanctx_conf *ctx,
1541 u32 changed)
1542{
1543 hwsim_check_chanctx_magic(ctx);
4bf88530
JB		 1544 wiphy_debug(hw->wiphy,
1545 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1546 ctx->def.chan->center_freq, ctx->def.width,
1547 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1548}
1549
1550static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
1551 struct ieee80211_vif *vif,
1552 struct ieee80211_chanctx_conf *ctx)
1553{
1554 hwsim_check_magic(vif);
1555 hwsim_check_chanctx_magic(ctx);
1556
1557 return 0;
1558}
1559
1560static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
1561 struct ieee80211_vif *vif,
1562 struct ieee80211_chanctx_conf *ctx)
1563{
1564 hwsim_check_magic(vif);
1565 hwsim_check_chanctx_magic(ctx);
1566}
1567
69068036 1568static struct ieee80211_ops mac80211_hwsim_ops =
acc1e7a3
JM		 1569{
1570 .tx = mac80211_hwsim_tx,
1571 .start = mac80211_hwsim_start,
1572 .stop = mac80211_hwsim_stop,
1573 .add_interface = mac80211_hwsim_add_interface,
c35d0270 1574 .change_interface = mac80211_hwsim_change_interface,
acc1e7a3
JM		 1575 .remove_interface = mac80211_hwsim_remove_interface,
1576 .config = mac80211_hwsim_config,
1577 .configure_filter = mac80211_hwsim_configure_filter,
8aa21e6f 1578 .bss_info_changed = mac80211_hwsim_bss_info_changed,
1d669cbf
JB		 1579 .sta_add = mac80211_hwsim_sta_add,
1580 .sta_remove = mac80211_hwsim_sta_remove,
8aa21e6f 1581 .sta_notify = mac80211_hwsim_sta_notify,
81c06523 1582 .set_tim = mac80211_hwsim_set_tim,
1e898ff8 1583 .conf_tx = mac80211_hwsim_conf_tx,
1289723e 1584 .get_survey = mac80211_hwsim_get_survey,
aff89a9b 1585 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
8b73d13a 1586 .ampdu_action = mac80211_hwsim_ampdu_action,
f74cb0f7
LR		 1587 .sw_scan_start = mac80211_hwsim_sw_scan,
1588 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
a80f7c0b 1589 .flush = mac80211_hwsim_flush,
12ce8ba3
JC		 1590 .get_tsf = mac80211_hwsim_get_tsf,
1591 .set_tsf = mac80211_hwsim_set_tsf,
acc1e7a3
JM		 1592};
1593
1594
1595static void mac80211_hwsim_free(void)
1596{
0e057d73 1597 struct list_head tmplist, *i, *tmp;
e603d9d8 1598 struct mac80211_hwsim_data *data, *tmpdata;
0e057d73
JB		 1599
1600 INIT_LIST_HEAD(&tmplist);
1601
1602 spin_lock_bh(&hwsim_radio_lock);
1603 list_for_each_safe(i, tmp, &hwsim_radios)
1604 list_move(i, &tmplist);
1605 spin_unlock_bh(&hwsim_radio_lock);
1606
e603d9d8 1607 list_for_each_entry_safe(data, tmpdata, &tmplist, list) {
73606d00 1608 debugfs_remove(data->debugfs_group);
fc6971d4
JM		 1609 debugfs_remove(data->debugfs_ps);
1610 debugfs_remove(data->debugfs);
0e057d73
JB		 1611 ieee80211_unregister_hw(data->hw);
1612 device_unregister(data->dev);
1613 ieee80211_free_hw(data->hw);
acc1e7a3 1614 }
acc1e7a3
JM		 1615 class_destroy(hwsim_class);
1616}
1617
1618
1619static struct device_driver mac80211_hwsim_driver = {
1620 .name = "mac80211_hwsim"
1621};
1622
98d2faae
SH		 1623static const struct net_device_ops hwsim_netdev_ops = {
1624 .ndo_start_xmit = hwsim_mon_xmit,
1625 .ndo_change_mtu = eth_change_mtu,
1626 .ndo_set_mac_address = eth_mac_addr,
1627 .ndo_validate_addr = eth_validate_addr,
1628};
acc1e7a3
JM		 1629
1630static void hwsim_mon_setup(struct net_device *dev)
1631{
98d2faae 1632 dev->netdev_ops = &hwsim_netdev_ops;
acc1e7a3
JM		 1633 dev->destructor = free_netdev;
1634 ether_setup(dev);
1635 dev->tx_queue_len = 0;
1636 dev->type = ARPHRD_IEEE80211_RADIOTAP;
1637 memset(dev->dev_addr, 0, ETH_ALEN);
1638 dev->dev_addr[0] = 0x12;
1639}
1640
1641
fc6971d4
JM		 1642static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
1643{
1644 struct mac80211_hwsim_data *data = dat;
1645 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
fc6971d4
JM		 1646 struct sk_buff *skb;
1647 struct ieee80211_pspoll *pspoll;
1648
1649 if (!vp->assoc)
1650 return;
1651
c96c31e4
JP		 1652 wiphy_debug(data->hw->wiphy,
1653 "%s: send PS-Poll to %pM for aid %d\n",
1654 __func__, vp->bssid, vp->aid);
fc6971d4
JM		 1655
1656 skb = dev_alloc_skb(sizeof(*pspoll));
1657 if (!skb)
1658 return;
1659 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
1660 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
1661 IEEE80211_STYPE_PSPOLL |
1662 IEEE80211_FCTL_PM);
1663 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
1664 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
1665 memcpy(pspoll->ta, mac, ETH_ALEN);
7882513b 1666
e8261171
JB		 1667 rcu_read_lock();
1668 mac80211_hwsim_tx_frame(data->hw, skb,
4bf88530 1669 rcu_dereference(vif->chanctx_conf)->def.chan);
e8261171 1670 rcu_read_unlock();
fc6971d4
JM		 1671}
1672
fc6971d4
JM		 1673static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
1674 struct ieee80211_vif *vif, int ps)
1675{
1676 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
fc6971d4
JM		 1677 struct sk_buff *skb;
1678 struct ieee80211_hdr *hdr;
1679
1680 if (!vp->assoc)
1681 return;
1682
c96c31e4
JP		 1683 wiphy_debug(data->hw->wiphy,
1684 "%s: send data::nullfunc to %pM ps=%d\n",
1685 __func__, vp->bssid, ps);
fc6971d4
JM		 1686
1687 skb = dev_alloc_skb(sizeof(*hdr));
1688 if (!skb)
1689 return;
1690 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
1691 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1692 IEEE80211_STYPE_NULLFUNC |
1693 (ps ? IEEE80211_FCTL_PM : 0));
1694 hdr->duration_id = cpu_to_le16(0);
1695 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
1696 memcpy(hdr->addr2, mac, ETH_ALEN);
1697 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
7882513b 1698
e8261171
JB		 1699 rcu_read_lock();
1700 mac80211_hwsim_tx_frame(data->hw, skb,
4bf88530 1701 rcu_dereference(vif->chanctx_conf)->def.chan);
e8261171 1702 rcu_read_unlock();
fc6971d4
JM		 1703}
1704
1705
1706static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
1707 struct ieee80211_vif *vif)
1708{
1709 struct mac80211_hwsim_data *data = dat;
1710 hwsim_send_nullfunc(data, mac, vif, 1);
1711}
1712
1713
1714static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
1715 struct ieee80211_vif *vif)
1716{
1717 struct mac80211_hwsim_data *data = dat;
1718 hwsim_send_nullfunc(data, mac, vif, 0);
1719}
1720
1721
1722static int hwsim_fops_ps_read(void *dat, u64 *val)
1723{
1724 struct mac80211_hwsim_data *data = dat;
1725 *val = data->ps;
1726 return 0;
1727}
1728
1729static int hwsim_fops_ps_write(void *dat, u64 val)
1730{
1731 struct mac80211_hwsim_data *data = dat;
1732 enum ps_mode old_ps;
1733
1734 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
1735 val != PS_MANUAL_POLL)
1736 return -EINVAL;
1737
1738 old_ps = data->ps;
1739 data->ps = val;
1740
1741 if (val == PS_MANUAL_POLL) {
1742 ieee80211_iterate_active_interfaces(data->hw,
8b2c9824 1743 IEEE80211_IFACE_ITER_NORMAL,
fc6971d4
JM		 1744 hwsim_send_ps_poll, data);
1745 data->ps_poll_pending = true;
1746 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
1747 ieee80211_iterate_active_interfaces(data->hw,
8b2c9824 1748 IEEE80211_IFACE_ITER_NORMAL,
fc6971d4
JM		 1749 hwsim_send_nullfunc_ps,
1750 data);
1751 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
1752 ieee80211_iterate_active_interfaces(data->hw,
8b2c9824 1753 IEEE80211_IFACE_ITER_NORMAL,
fc6971d4
JM		 1754 hwsim_send_nullfunc_no_ps,
1755 data);
1756 }
1757
1758 return 0;
1759}
1760
1761DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
1762 "%llu\n");
1763
1764
73606d00
DW		 1765static int hwsim_fops_group_read(void *dat, u64 *val)
1766{
1767 struct mac80211_hwsim_data *data = dat;
1768 *val = data->group;
1769 return 0;
1770}
1771
1772static int hwsim_fops_group_write(void *dat, u64 val)
1773{
1774 struct mac80211_hwsim_data *data = dat;
1775 data->group = val;
1776 return 0;
1777}
1778
1779DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
1780 hwsim_fops_group_read, hwsim_fops_group_write,
1781 "%llx\n");
1782
f483ad25 1783static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(
7882513b
JL		 1784 struct mac_address *addr)
1785{
1786 struct mac80211_hwsim_data *data;
1787 bool _found = false;
1788
1789 spin_lock_bh(&hwsim_radio_lock);
1790 list_for_each_entry(data, &hwsim_radios, list) {
1791 if (memcmp(data->addresses[1].addr, addr,
1792 sizeof(struct mac_address)) == 0) {
1793 _found = true;
1794 break;
1795 }
1796 }
1797 spin_unlock_bh(&hwsim_radio_lock);
1798
1799 if (!_found)
1800 return NULL;
1801
1802 return data;
1803}
1804
1805static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
1806 struct genl_info *info)
1807{
1808
1809 struct ieee80211_hdr *hdr;
1810 struct mac80211_hwsim_data *data2;
1811 struct ieee80211_tx_info *txi;
1812 struct hwsim_tx_rate *tx_attempts;
d0f718c1 1813 unsigned long ret_skb_ptr;
7882513b
JL		 1814 struct sk_buff *skb, *tmp;
1815 struct mac_address *src;
1816 unsigned int hwsim_flags;
1817
1818 int i;
1819 bool found = false;
1820
1821 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
1822 !info->attrs[HWSIM_ATTR_FLAGS] ||
1823 !info->attrs[HWSIM_ATTR_COOKIE] ||
1824 !info->attrs[HWSIM_ATTR_TX_INFO])
1825 goto out;
1826
1827 src = (struct mac_address *)nla_data(
1828 info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
1829 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
1830
d0f718c1 1831 ret_skb_ptr = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
7882513b
JL		 1832
1833 data2 = get_hwsim_data_ref_from_addr(src);
1834
1835 if (data2 == NULL)
1836 goto out;
1837
1838 /* look for the skb matching the cookie passed back from user */
1839 skb_queue_walk_safe(&data2->pending, skb, tmp) {
d0f718c1 1840 if ((unsigned long)skb == ret_skb_ptr) {
7882513b
JL		 1841 skb_unlink(skb, &data2->pending);
1842 found = true;
1843 break;
1844 }
1845 }
1846
1847 /* not found */
1848 if (!found)
1849 goto out;
1850
1851 /* Tx info received because the frame was broadcasted on user space,
1852 so we get all the necessary info: tx attempts and skb control buff */
1853
1854 tx_attempts = (struct hwsim_tx_rate *)nla_data(
1855 info->attrs[HWSIM_ATTR_TX_INFO]);
1856
1857 /* now send back TX status */
1858 txi = IEEE80211_SKB_CB(skb);
1859
7882513b
JL		 1860 ieee80211_tx_info_clear_status(txi);
1861
1862 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
1863 txi->status.rates[i].idx = tx_attempts[i].idx;
1864 txi->status.rates[i].count = tx_attempts[i].count;
1865 /*txi->status.rates[i].flags = 0;*/
1866 }
1867
1868 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
1869
1870 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
1871 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
1872 if (skb->len >= 16) {
1873 hdr = (struct ieee80211_hdr *) skb->data;
e8261171
JB		 1874 mac80211_hwsim_monitor_ack(txi->rate_driver_data[0],
1875 hdr->addr2);
7882513b 1876 }
06cf5c4c 1877 txi->flags |= IEEE80211_TX_STAT_ACK;
7882513b
JL		 1878 }
1879 ieee80211_tx_status_irqsafe(data2->hw, skb);
1880 return 0;
1881out:
1882 return -EINVAL;
1883
1884}
1885
1886static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
1887 struct genl_info *info)
1888{
1889
e8261171 1890 struct mac80211_hwsim_data *data2;
7882513b
JL		 1891 struct ieee80211_rx_status rx_status;
1892 struct mac_address *dst;
1893 int frame_data_len;
1894 char *frame_data;
1895 struct sk_buff *skb = NULL;
1896
1897 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
e8261171
JB		 1898 !info->attrs[HWSIM_ATTR_FRAME] ||
1899 !info->attrs[HWSIM_ATTR_RX_RATE] ||
1900 !info->attrs[HWSIM_ATTR_SIGNAL])
7882513b
JL		 1901 goto out;
1902
1903 dst = (struct mac_address *)nla_data(
1904 info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
1905
1906 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
1907 frame_data = (char *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
1908
1909 /* Allocate new skb here */
1910 skb = alloc_skb(frame_data_len, GFP_KERNEL);
1911 if (skb == NULL)
1912 goto err;
1913
1914 if (frame_data_len <= IEEE80211_MAX_DATA_LEN) {
1915 /* Copy the data */
1916 memcpy(skb_put(skb, frame_data_len), frame_data,
1917 frame_data_len);
1918 } else
1919 goto err;
1920
1921 data2 = get_hwsim_data_ref_from_addr(dst);
1922
1923 if (data2 == NULL)
1924 goto out;
1925
1926 /* check if radio is configured properly */
1927
e8261171 1928 if (data2->idle || !data2->started)
7882513b
JL		 1929 goto out;
1930
1931 /*A frame is received from user space*/
1932 memset(&rx_status, 0, sizeof(rx_status));
1933 rx_status.freq = data2->channel->center_freq;
1934 rx_status.band = data2->channel->band;
1935 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
1936 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
1937
1938 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
1939 ieee80211_rx_irqsafe(data2->hw, skb);
1940
1941 return 0;
1942err:
c393862f 1943 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 1944 goto out;
1945out:
1946 dev_kfree_skb(skb);
1947 return -EINVAL;
1948}
1949
1950static int hwsim_register_received_nl(struct sk_buff *skb_2,
1951 struct genl_info *info)
1952{
1953 if (info == NULL)
1954 goto out;
1955
15e47304 1956 wmediumd_portid = info->snd_portid;
7882513b
JL		 1957
1958 printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
15e47304 1959 "switching to wmediumd mode with pid %d\n", info->snd_portid);
7882513b
JL		 1960
1961 return 0;
1962out:
c393862f 1963 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 1964 return -EINVAL;
1965}
1966
1967/* Generic Netlink operations array */
1968static struct genl_ops hwsim_ops[] = {
1969 {
1970 .cmd = HWSIM_CMD_REGISTER,
1971 .policy = hwsim_genl_policy,
1972 .doit = hwsim_register_received_nl,
1973 .flags = GENL_ADMIN_PERM,
1974 },
1975 {
1976 .cmd = HWSIM_CMD_FRAME,
1977 .policy = hwsim_genl_policy,
1978 .doit = hwsim_cloned_frame_received_nl,
1979 },
1980 {
1981 .cmd = HWSIM_CMD_TX_INFO_FRAME,
1982 .policy = hwsim_genl_policy,
1983 .doit = hwsim_tx_info_frame_received_nl,
1984 },
1985};
1986
1987static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
1988 unsigned long state,
1989 void *_notify)
1990{
1991 struct netlink_notify *notify = _notify;
1992
1993 if (state != NETLINK_URELEASE)
1994 return NOTIFY_DONE;
1995
15e47304 1996 if (notify->portid == wmediumd_portid) {
7882513b
JL		 1997 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
1998 " socket, switching to perfect channel medium\n");
15e47304 1999 wmediumd_portid = 0;
7882513b
JL		 2000 }
2001 return NOTIFY_DONE;
2002
2003}
2004
2005static struct notifier_block hwsim_netlink_notifier = {
2006 .notifier_call = mac80211_hwsim_netlink_notify,
2007};
2008
2009static int hwsim_init_netlink(void)
2010{
2011 int rc;
e8261171
JB		 2012
2013 /* userspace test API hasn't been adjusted for multi-channel */
2014 if (channels > 1)
2015 return 0;
2016
7882513b
JL		 2017 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
2018
7882513b
JL		 2019 rc = genl_register_family_with_ops(&hwsim_genl_family,
2020 hwsim_ops, ARRAY_SIZE(hwsim_ops));
2021 if (rc)
2022 goto failure;
2023
2024 rc = netlink_register_notifier(&hwsim_netlink_notifier);
2025 if (rc)
2026 goto failure;
2027
2028 return 0;
2029
2030failure:
c393862f 2031 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 2032 return -EINVAL;
2033}
2034
2035static void hwsim_exit_netlink(void)
2036{
2037 int ret;
2038
e8261171
JB		 2039 /* userspace test API hasn't been adjusted for multi-channel */
2040 if (channels > 1)
2041 return;
2042
7882513b
JL		 2043 printk(KERN_INFO "mac80211_hwsim: closing netlink\n");
2044 /* unregister the notifier */
2045 netlink_unregister_notifier(&hwsim_netlink_notifier);
2046 /* unregister the family */
2047 ret = genl_unregister_family(&hwsim_genl_family);
2048 if (ret)
2049 printk(KERN_DEBUG "mac80211_hwsim: "
2050 "unregister family %i\n", ret);
2051}
2052
1ae2fc25
JB		 2053static const struct ieee80211_iface_limit hwsim_if_limits[] = {
2054 { .max = 1, .types = BIT(NL80211_IFTYPE_ADHOC) },
2055 { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) |
2056 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2057#ifdef CONFIG_MAC80211_MESH
2058 BIT(NL80211_IFTYPE_MESH_POINT) |
2059#endif
2060 BIT(NL80211_IFTYPE_AP) |
2061 BIT(NL80211_IFTYPE_P2P_GO) },
8b3d1cc2 2062 { .max = 1, .types = BIT(NL80211_IFTYPE_P2P_DEVICE) },
1ae2fc25
JB		 2063};
2064
e8261171 2065static struct ieee80211_iface_combination hwsim_if_comb = {
1ae2fc25
JB		 2066 .limits = hwsim_if_limits,
2067 .n_limits = ARRAY_SIZE(hwsim_if_limits),
2068 .max_interfaces = 2048,
2069 .num_different_channels = 1,
2070};
2071
acc1e7a3
JM		 2072static int __init init_mac80211_hwsim(void)
2073{
2074 int i, err = 0;
2075 u8 addr[ETH_ALEN];
2076 struct mac80211_hwsim_data *data;
2077 struct ieee80211_hw *hw;
22cad735 2078 enum ieee80211_band band;
acc1e7a3 2079
0e057d73 2080 if (radios < 1 || radios > 100)
acc1e7a3
JM		 2081 return -EINVAL;
2082
e8261171
JB		 2083 if (channels < 1)
2084 return -EINVAL;
2085
2086 if (channels > 1) {
2087 hwsim_if_comb.num_different_channels = channels;
69068036 2088 mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan;
e8261171
JB		 2089 mac80211_hwsim_ops.cancel_hw_scan =
2090 mac80211_hwsim_cancel_hw_scan;
f74cb0f7
LR		 2091 mac80211_hwsim_ops.sw_scan_start = NULL;
2092 mac80211_hwsim_ops.sw_scan_complete = NULL;
e8261171
JB		 2093 mac80211_hwsim_ops.remain_on_channel =
2094 mac80211_hwsim_roc;
2095 mac80211_hwsim_ops.cancel_remain_on_channel =
2096 mac80211_hwsim_croc;
2097 mac80211_hwsim_ops.add_chanctx =
2098 mac80211_hwsim_add_chanctx;
2099 mac80211_hwsim_ops.remove_chanctx =
2100 mac80211_hwsim_remove_chanctx;
2101 mac80211_hwsim_ops.change_chanctx =
2102 mac80211_hwsim_change_chanctx;
2103 mac80211_hwsim_ops.assign_vif_chanctx =
2104 mac80211_hwsim_assign_vif_chanctx;
2105 mac80211_hwsim_ops.unassign_vif_chanctx =
2106 mac80211_hwsim_unassign_vif_chanctx;
f74cb0f7 2107 }
69068036 2108
0e057d73
JB		 2109 spin_lock_init(&hwsim_radio_lock);
2110 INIT_LIST_HEAD(&hwsim_radios);
acc1e7a3
JM		 2111
2112 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
0e057d73 2113 if (IS_ERR(hwsim_class))
acc1e7a3 2114 return PTR_ERR(hwsim_class);
acc1e7a3
JM		 2115
2116 memset(addr, 0, ETH_ALEN);
2117 addr[0] = 0x02;
2118
0e057d73 2119 for (i = 0; i < radios; i++) {
acc1e7a3
JM		 2120 printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
2121 i);
2122 hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);
0e057d73 2123 if (!hw) {
acc1e7a3
JM		 2124 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
2125 "failed\n");
2126 err = -ENOMEM;
2127 goto failed;
2128 }
acc1e7a3 2129 data = hw->priv;
0e057d73
JB		 2130 data->hw = hw;
2131
6e05d6c4
GKH		 2132 data->dev = device_create(hwsim_class, NULL, 0, hw,
2133 "hwsim%d", i);
acc1e7a3 2134 if (IS_ERR(data->dev)) {
e800f17c 2135 printk(KERN_DEBUG
6e05d6c4 2136 "mac80211_hwsim: device_create "
acc1e7a3
JM		 2137 "failed (%ld)\n", PTR_ERR(data->dev));
2138 err = -ENOMEM;
3a33cc10 2139 goto failed_drvdata;
acc1e7a3
JM		 2140 }
2141 data->dev->driver = &mac80211_hwsim_driver;
7882513b 2142 skb_queue_head_init(&data->pending);
acc1e7a3
JM		 2143
2144 SET_IEEE80211_DEV(hw, data->dev);
2145 addr[3] = i >> 8;
2146 addr[4] = i;
ef15aac6
JB		 2147 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
2148 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
2149 data->addresses[1].addr[0] |= 0x40;
2150 hw->wiphy->n_addresses = 2;
2151 hw->wiphy->addresses = data->addresses;
acc1e7a3 2152
1ae2fc25
JB		 2153 hw->wiphy->iface_combinations = &hwsim_if_comb;
2154 hw->wiphy->n_iface_combinations = 1;
2155
e8261171 2156 if (channels > 1) {
8223d2f5
JB		 2157 hw->wiphy->max_scan_ssids = 255;
2158 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
e8261171 2159 hw->wiphy->max_remain_on_channel_duration = 1000;
8223d2f5
JB		 2160 }
2161
e8261171
JB		 2162 INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
2163 INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
2164
acc1e7a3 2165 hw->channel_change_time = 1;
e8261171
JB		 2166 hw->queues = 5;
2167 hw->offchannel_tx_hw_queue = 4;
f59ac048
LR		 2168 hw->wiphy->interface_modes =
2169 BIT(NL80211_IFTYPE_STATION) |
55b39619 2170 BIT(NL80211_IFTYPE_AP) |
2ca27bcf
JB		 2171 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2172 BIT(NL80211_IFTYPE_P2P_GO) |
2b2d7795 2173 BIT(NL80211_IFTYPE_ADHOC) |
8b3d1cc2
JB		 2174 BIT(NL80211_IFTYPE_MESH_POINT) |
2175 BIT(NL80211_IFTYPE_P2P_DEVICE);
acc1e7a3 2176
4b14c96d 2177 hw->flags = IEEE80211_HW_MFP_CAPABLE |
0f78231b
JB		 2178 IEEE80211_HW_SIGNAL_DBM |
2179 IEEE80211_HW_SUPPORTS_STATIC_SMPS |
a75b4363 2180 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
4b6f1dd6 2181 IEEE80211_HW_AMPDU_AGGREGATION |
e8261171
JB		 2182 IEEE80211_HW_WANT_MONITOR_VIF |
2183 IEEE80211_HW_QUEUE_CONTROL;
fa77533e 2184
81ddbb5c
JB		 2185 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2186 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
43bc3e89 2187
8aa21e6f
JB		 2188 /* ask mac80211 to reserve space for magic */
2189 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
81c06523 2190 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
8aa21e6f 2191
22cad735
LR		 2192 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
2193 sizeof(hwsim_channels_2ghz));
2194 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
2195 sizeof(hwsim_channels_5ghz));
acc1e7a3 2196 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
22cad735
LR		 2197
2198 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
2199 struct ieee80211_supported_band *sband = &data->bands[band];
2200 switch (band) {
2201 case IEEE80211_BAND_2GHZ:
2202 sband->channels = data->channels_2ghz;
2203 sband->n_channels =
2204 ARRAY_SIZE(hwsim_channels_2ghz);
d130eb49
JB		 2205 sband->bitrates = data->rates;
2206 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
22cad735
LR		 2207 break;
2208 case IEEE80211_BAND_5GHZ:
2209 sband->channels = data->channels_5ghz;
2210 sband->n_channels =
2211 ARRAY_SIZE(hwsim_channels_5ghz);
d130eb49
JB		 2212 sband->bitrates = data->rates + 4;
2213 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
22cad735
LR		 2214 break;
2215 default:
1b083ea4 2216 continue;
22cad735
LR		 2217 }
2218
22cad735
LR		 2219 sband->ht_cap.ht_supported = true;
2220 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
2221 IEEE80211_HT_CAP_GRN_FLD |
2222 IEEE80211_HT_CAP_SGI_40 |
2223 IEEE80211_HT_CAP_DSSSCCK40;
2224 sband->ht_cap.ampdu_factor = 0x3;
2225 sband->ht_cap.ampdu_density = 0x6;
2226 memset(&sband->ht_cap.mcs, 0,
2227 sizeof(sband->ht_cap.mcs));
2228 sband->ht_cap.mcs.rx_mask[0] = 0xff;
2229 sband->ht_cap.mcs.rx_mask[1] = 0xff;
2230 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2231
2232 hw->wiphy->bands[band] = sband;
b296005c
JB		 2233
2234 if (channels == 1)
2235 continue;
2236
2237 sband->vht_cap.vht_supported = true;
2238 sband->vht_cap.cap =
2239 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
2240 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
2241 IEEE80211_VHT_CAP_RXLDPC |
2242 IEEE80211_VHT_CAP_SHORT_GI_80 |
2243 IEEE80211_VHT_CAP_SHORT_GI_160 |
2244 IEEE80211_VHT_CAP_TXSTBC |
2245 IEEE80211_VHT_CAP_RXSTBC_1 |
2246 IEEE80211_VHT_CAP_RXSTBC_2 |
2247 IEEE80211_VHT_CAP_RXSTBC_3 |
2248 IEEE80211_VHT_CAP_RXSTBC_4 |
01331040 2249 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
b296005c
JB		 2250 sband->vht_cap.vht_mcs.rx_mcs_map =
2251 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_8 << 0 |
2252 IEEE80211_VHT_MCS_SUPPORT_0_8 << 2 |
2253 IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
2254 IEEE80211_VHT_MCS_SUPPORT_0_8 << 6 |
2255 IEEE80211_VHT_MCS_SUPPORT_0_8 << 8 |
2256 IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
2257 IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
2258 IEEE80211_VHT_MCS_SUPPORT_0_8 << 14);
2259 sband->vht_cap.vht_mcs.tx_mcs_map =
2260 sband->vht_cap.vht_mcs.rx_mcs_map;
22cad735 2261 }
73606d00
DW		 2262 /* By default all radios are belonging to the first group */
2263 data->group = 1;
f74cb0f7 2264 mutex_init(&data->mutex);
acc1e7a3 2265
7882513b
JL		 2266 /* Enable frame retransmissions for lossy channels */
2267 hw->max_rates = 4;
2268 hw->max_rate_tries = 11;
2269
4a5af9c2
LR		 2270 /* Work to be done prior to ieee80211_register_hw() */
2271 switch (regtest) {
2272 case HWSIM_REGTEST_DISABLED:
2273 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
2274 case HWSIM_REGTEST_DRIVER_REG_ALL:
2275 case HWSIM_REGTEST_DIFF_COUNTRY:
2276 /*
2277 * Nothing to be done for driver regulatory domain
2278 * hints prior to ieee80211_register_hw()
2279 */
2280 break;
2281 case HWSIM_REGTEST_WORLD_ROAM:
2282 if (i == 0) {
5be83de5 2283 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 2284 wiphy_apply_custom_regulatory(hw->wiphy,
2285 &hwsim_world_regdom_custom_01);
2286 }
2287 break;
2288 case HWSIM_REGTEST_CUSTOM_WORLD:
5be83de5 2289 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 2290 wiphy_apply_custom_regulatory(hw->wiphy,
2291 &hwsim_world_regdom_custom_01);
2292 break;
2293 case HWSIM_REGTEST_CUSTOM_WORLD_2:
2294 if (i == 0) {
5be83de5 2295 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 2296 wiphy_apply_custom_regulatory(hw->wiphy,
2297 &hwsim_world_regdom_custom_01);
2298 } else if (i == 1) {
5be83de5 2299 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 2300 wiphy_apply_custom_regulatory(hw->wiphy,
2301 &hwsim_world_regdom_custom_02);
2302 }
2303 break;
2304 case HWSIM_REGTEST_STRICT_ALL:
5be83de5 2305 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
4a5af9c2
LR		 2306 break;
2307 case HWSIM_REGTEST_STRICT_FOLLOW:
2308 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
2309 if (i == 0)
5be83de5 2310 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
4a5af9c2
LR		 2311 break;
2312 case HWSIM_REGTEST_ALL:
2313 if (i == 0) {
5be83de5 2314 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 2315 wiphy_apply_custom_regulatory(hw->wiphy,
2316 &hwsim_world_regdom_custom_01);
2317 } else if (i == 1) {
5be83de5 2318 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 2319 wiphy_apply_custom_regulatory(hw->wiphy,
2320 &hwsim_world_regdom_custom_02);
2321 } else if (i == 4)
5be83de5 2322 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
4a5af9c2
LR		 2323 break;
2324 default:
2325 break;
2326 }
2327
98dfaa57
LR		 2328 /* give the regulatory workqueue a chance to run */
2329 if (regtest)
2330 schedule_timeout_interruptible(1);
acc1e7a3
JM		 2331 err = ieee80211_register_hw(hw);
2332 if (err < 0) {
2333 printk(KERN_DEBUG "mac80211_hwsim: "
2334 "ieee80211_register_hw failed (%d)\n", err);
3a33cc10 2335 goto failed_hw;
acc1e7a3
JM		 2336 }
2337
4a5af9c2
LR		 2338 /* Work to be done after to ieee80211_register_hw() */
2339 switch (regtest) {
2340 case HWSIM_REGTEST_WORLD_ROAM:
2341 case HWSIM_REGTEST_DISABLED:
2342 break;
2343 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
2344 if (!i)
2345 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2346 break;
2347 case HWSIM_REGTEST_DRIVER_REG_ALL:
2348 case HWSIM_REGTEST_STRICT_ALL:
2349 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2350 break;
2351 case HWSIM_REGTEST_DIFF_COUNTRY:
2352 if (i < ARRAY_SIZE(hwsim_alpha2s))
2353 regulatory_hint(hw->wiphy, hwsim_alpha2s[i]);
2354 break;
2355 case HWSIM_REGTEST_CUSTOM_WORLD:
2356 case HWSIM_REGTEST_CUSTOM_WORLD_2:
2357 /*
2358 * Nothing to be done for custom world regulatory
2359 * domains after to ieee80211_register_hw
2360 */
2361 break;
2362 case HWSIM_REGTEST_STRICT_FOLLOW:
2363 if (i == 0)
2364 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2365 break;
2366 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
2367 if (i == 0)
2368 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2369 else if (i == 1)
2370 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
2371 break;
2372 case HWSIM_REGTEST_ALL:
2373 if (i == 2)
2374 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2375 else if (i == 3)
2376 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
2377 else if (i == 4)
2378 regulatory_hint(hw->wiphy, hwsim_alpha2s[2]);
2379 break;
2380 default:
2381 break;
2382 }
2383
c96c31e4
JP		 2384 wiphy_debug(hw->wiphy, "hwaddr %pm registered\n",
2385 hw->wiphy->perm_addr);
acc1e7a3 2386
fc6971d4
JM		 2387 data->debugfs = debugfs_create_dir("hwsim",
2388 hw->wiphy->debugfsdir);
2389 data->debugfs_ps = debugfs_create_file("ps", 0666,
2390 data->debugfs, data,
2391 &hwsim_fops_ps);
73606d00
DW		 2392 data->debugfs_group = debugfs_create_file("group", 0666,
2393 data->debugfs, data,
2394 &hwsim_fops_group);
fc6971d4 2395
acc1e7a3
JM		 2396 setup_timer(&data->beacon_timer, mac80211_hwsim_beacon,
2397 (unsigned long) hw);
0e057d73
JB		 2398
2399 list_add_tail(&data->list, &hwsim_radios);
acc1e7a3
JM		 2400 }
2401
2402 hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
2403 if (hwsim_mon == NULL)
2404 goto failed;
2405
7882513b
JL		 2406 rtnl_lock();
2407
2408 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
3a33cc10 2409 if (err < 0)
acc1e7a3 2410 goto failed_mon;
3a33cc10 2411
7882513b
JL		 2412
2413 err = register_netdevice(hwsim_mon);
2414 if (err < 0)
2415 goto failed_mon;
2416
2417 rtnl_unlock();
2418
2419 err = hwsim_init_netlink();
2420 if (err < 0)
2421 goto failed_nl;
2422
acc1e7a3
JM		 2423 return 0;
2424
7882513b
JL		 2425failed_nl:
2426 printk(KERN_DEBUG "mac_80211_hwsim: failed initializing netlink\n");
2427 return err;
2428
acc1e7a3
JM		 2429failed_mon:
2430 rtnl_unlock();
2431 free_netdev(hwsim_mon);
3a33cc10
IS		 2432 mac80211_hwsim_free();
2433 return err;
acc1e7a3 2434
3a33cc10
IS		 2435failed_hw:
2436 device_unregister(data->dev);
2437failed_drvdata:
2438 ieee80211_free_hw(hw);
acc1e7a3
JM		 2439failed:
2440 mac80211_hwsim_free();
2441 return err;
2442}
f8fffc7e 2443module_init(init_mac80211_hwsim);
acc1e7a3
JM		 2444
2445static void __exit exit_mac80211_hwsim(void)
2446{
0e057d73 2447 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
acc1e7a3 2448
7882513b
JL		 2449 hwsim_exit_netlink();
2450
acc1e7a3 2451 mac80211_hwsim_free();
5d416351 2452 unregister_netdev(hwsim_mon);
acc1e7a3 2453}
acc1e7a3 2454module_exit(exit_mac80211_hwsim);
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