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mac80211_hwsim: minimize rctbl module parameter usage
[mirror_ubuntu-bionic-kernel.git] / drivers / net / wireless / mac80211_hwsim.c
CommitLineData
acc1e7a3
JM		 1/*
2 * mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211
3 * Copyright (c) 2008, Jouni Malinen <j@w1.fi>
7882513b 4 * Copyright (c) 2011, Javier Lopez <jlopex@gmail.com>
acc1e7a3
JM		 5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10
11/*
12 * TODO:
2b2d7795
JB		 13 * - Add TSF sync and fix IBSS beacon transmission by adding
14 * competition for "air time" at TBTT
acc1e7a3
JM		 15 * - RX filtering based on filter configuration (data->rx_filter)
16 */
17
0e057d73 18#include <linux/list.h>
5a0e3ad6 19#include <linux/slab.h>
0e057d73 20#include <linux/spinlock.h>
90e3012e
JB		 21#include <net/dst.h>
22#include <net/xfrm.h>
acc1e7a3
JM		 23#include <net/mac80211.h>
24#include <net/ieee80211_radiotap.h>
25#include <linux/if_arp.h>
26#include <linux/rtnetlink.h>
27#include <linux/etherdevice.h>
9ea92774 28#include <linux/platform_device.h>
fc6971d4 29#include <linux/debugfs.h>
9d9779e7 30#include <linux/module.h>
2f40b940 31#include <linux/ktime.h>
7882513b
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
8aa21e6f
JB		 60struct hwsim_vif_priv {
61 u32 magic;
fc6971d4
JM		 62 u8 bssid[ETH_ALEN];
63 bool assoc;
0bb861e6 64 bool bcn_en;
fc6971d4 65 u16 aid;
8aa21e6f
JB		 66};
67
68#define HWSIM_VIF_MAGIC 0x69537748
69
70static inline void hwsim_check_magic(struct ieee80211_vif *vif)
71{
72 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
e8261171
JB		 73 WARN(vp->magic != HWSIM_VIF_MAGIC,
74 "Invalid VIF (%p) magic %#x, %pM, %d/%d\n",
75 vif, vp->magic, vif->addr, vif->type, vif->p2p);
8aa21e6f
JB		 76}
77
78static inline void hwsim_set_magic(struct ieee80211_vif *vif)
79{
80 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
81 vp->magic = HWSIM_VIF_MAGIC;
82}
83
84static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
85{
86 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
87 vp->magic = 0;
88}
acc1e7a3 89
81c06523
JB		 90struct hwsim_sta_priv {
91 u32 magic;
92};
93
e8261171 94#define HWSIM_STA_MAGIC 0x6d537749
81c06523
JB		 95
96static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
97{
98 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
5d6924ea 99 WARN_ON(sp->magic != HWSIM_STA_MAGIC);
81c06523
JB		 100}
101
102static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
103{
104 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
5d6924ea 105 sp->magic = HWSIM_STA_MAGIC;
81c06523
JB		 106}
107
108static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
109{
110 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
111 sp->magic = 0;
112}
113
e8261171
JB		 114struct hwsim_chanctx_priv {
115 u32 magic;
116};
117
118#define HWSIM_CHANCTX_MAGIC 0x6d53774a
119
120static inline void hwsim_check_chanctx_magic(struct ieee80211_chanctx_conf *c)
121{
122 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
123 WARN_ON(cp->magic != HWSIM_CHANCTX_MAGIC);
124}
125
126static inline void hwsim_set_chanctx_magic(struct ieee80211_chanctx_conf *c)
127{
128 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
129 cp->magic = HWSIM_CHANCTX_MAGIC;
130}
131
132static inline void hwsim_clear_chanctx_magic(struct ieee80211_chanctx_conf *c)
133{
134 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
135 cp->magic = 0;
136}
137
acc1e7a3
JM		 138static struct class *hwsim_class;
139
acc1e7a3
JM		 140static struct net_device *hwsim_mon; /* global monitor netdev */
141
22cad735
LR		 142#define CHAN2G(_freq) { \
143 .band = IEEE80211_BAND_2GHZ, \
144 .center_freq = (_freq), \
145 .hw_value = (_freq), \
146 .max_power = 20, \
147}
148
149#define CHAN5G(_freq) { \
150 .band = IEEE80211_BAND_5GHZ, \
151 .center_freq = (_freq), \
152 .hw_value = (_freq), \
153 .max_power = 20, \
154}
155
156static const struct ieee80211_channel hwsim_channels_2ghz[] = {
157 CHAN2G(2412), /* Channel 1 */
158 CHAN2G(2417), /* Channel 2 */
159 CHAN2G(2422), /* Channel 3 */
160 CHAN2G(2427), /* Channel 4 */
161 CHAN2G(2432), /* Channel 5 */
162 CHAN2G(2437), /* Channel 6 */
163 CHAN2G(2442), /* Channel 7 */
164 CHAN2G(2447), /* Channel 8 */
165 CHAN2G(2452), /* Channel 9 */
166 CHAN2G(2457), /* Channel 10 */
167 CHAN2G(2462), /* Channel 11 */
168 CHAN2G(2467), /* Channel 12 */
169 CHAN2G(2472), /* Channel 13 */
170 CHAN2G(2484), /* Channel 14 */
171};
acc1e7a3 172
22cad735
LR		 173static const struct ieee80211_channel hwsim_channels_5ghz[] = {
174 CHAN5G(5180), /* Channel 36 */
175 CHAN5G(5200), /* Channel 40 */
176 CHAN5G(5220), /* Channel 44 */
177 CHAN5G(5240), /* Channel 48 */
178
179 CHAN5G(5260), /* Channel 52 */
180 CHAN5G(5280), /* Channel 56 */
181 CHAN5G(5300), /* Channel 60 */
182 CHAN5G(5320), /* Channel 64 */
183
184 CHAN5G(5500), /* Channel 100 */
185 CHAN5G(5520), /* Channel 104 */
186 CHAN5G(5540), /* Channel 108 */
187 CHAN5G(5560), /* Channel 112 */
188 CHAN5G(5580), /* Channel 116 */
189 CHAN5G(5600), /* Channel 120 */
190 CHAN5G(5620), /* Channel 124 */
191 CHAN5G(5640), /* Channel 128 */
192 CHAN5G(5660), /* Channel 132 */
193 CHAN5G(5680), /* Channel 136 */
194 CHAN5G(5700), /* Channel 140 */
195
196 CHAN5G(5745), /* Channel 149 */
197 CHAN5G(5765), /* Channel 153 */
198 CHAN5G(5785), /* Channel 157 */
199 CHAN5G(5805), /* Channel 161 */
200 CHAN5G(5825), /* Channel 165 */
acc1e7a3
JM		 201};
202
203static const struct ieee80211_rate hwsim_rates[] = {
204 { .bitrate = 10 },
205 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
206 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
207 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
208 { .bitrate = 60 },
209 { .bitrate = 90 },
210 { .bitrate = 120 },
211 { .bitrate = 180 },
212 { .bitrate = 240 },
213 { .bitrate = 360 },
214 { .bitrate = 480 },
215 { .bitrate = 540 }
216};
217
0e057d73
JB		 218static spinlock_t hwsim_radio_lock;
219static struct list_head hwsim_radios;
220
acc1e7a3 221struct mac80211_hwsim_data {
0e057d73
JB		 222 struct list_head list;
223 struct ieee80211_hw *hw;
acc1e7a3 224 struct device *dev;
1b083ea4 225 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
22cad735
LR		 226 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
227 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
acc1e7a3 228 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
38ed5048 229 struct ieee80211_iface_combination if_combination;
acc1e7a3 230
ef15aac6 231 struct mac_address addresses[2];
38ed5048 232 int channels;
ef15aac6 233
e8261171
JB		 234 struct ieee80211_channel *tmp_chan;
235 struct delayed_work roc_done;
236 struct delayed_work hw_scan;
237 struct cfg80211_scan_request *hw_scan_request;
238 struct ieee80211_vif *hw_scan_vif;
239 int scan_chan_idx;
240
acc1e7a3 241 struct ieee80211_channel *channel;
01e59e46 242 u64 beacon_int /* beacon interval in us */;
acc1e7a3 243 unsigned int rx_filter;
f74cb0f7
LR		 244 bool started, idle, scanning;
245 struct mutex mutex;
01e59e46 246 struct tasklet_hrtimer beacon_timer;
fc6971d4
JM		 247 enum ps_mode {
248 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
249 } ps;
250 bool ps_poll_pending;
251 struct dentry *debugfs;
73606d00 252
7882513b 253 struct sk_buff_head pending; /* packets pending */
73606d00
DW		 254 /*
255 * Only radios in the same group can communicate together (the
256 * channel has to match too). Each bit represents a group. A
257 * radio can be in more then one group.
258 */
259 u64 group;
bdd7bd16
BG		 260
261 int power_level;
2f40b940
JC		 262
263 /* difference between this hw's clock and the real clock, in usecs */
45034bfb 264 s64 tsf_offset;
c51f8783 265 s64 bcn_delta;
b66851c3
TP		 266 /* absolute beacon transmission time. Used to cover up "tx" delay. */
267 u64 abs_bcn_ts;
acc1e7a3
JM		 268};
269
270
271struct hwsim_radiotap_hdr {
272 struct ieee80211_radiotap_header hdr;
2f40b940 273 __le64 rt_tsft;
acc1e7a3
JM		 274 u8 rt_flags;
275 u8 rt_rate;
276 __le16 rt_channel;
277 __le16 rt_chbitmask;
ba2d3587 278} __packed;
acc1e7a3 279
76a56eb3
JM		 280struct hwsim_radiotap_ack_hdr {
281 struct ieee80211_radiotap_header hdr;
282 u8 rt_flags;
283 u8 pad;
284 __le16 rt_channel;
285 __le16 rt_chbitmask;
286} __packed;
287
7882513b
JL		 288/* MAC80211_HWSIM netlinf family */
289static struct genl_family hwsim_genl_family = {
290 .id = GENL_ID_GENERATE,
291 .hdrsize = 0,
292 .name = "MAC80211_HWSIM",
293 .version = 1,
294 .maxattr = HWSIM_ATTR_MAX,
295};
296
297/* MAC80211_HWSIM netlink policy */
298
299static struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
300 [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC,
301 .len = 6*sizeof(u8) },
302 [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC,
303 .len = 6*sizeof(u8) },
304 [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
305 .len = IEEE80211_MAX_DATA_LEN },
306 [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
307 [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
308 [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
309 [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC,
310 .len = IEEE80211_TX_MAX_RATES*sizeof(
311 struct hwsim_tx_rate)},
312 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
313};
acc1e7a3 314
d0cf9c0d
SH		 315static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
316 struct net_device *dev)
acc1e7a3
JM		 317{
318 /* TODO: allow packet injection */
319 dev_kfree_skb(skb);
6ed10654 320 return NETDEV_TX_OK;
acc1e7a3
JM		 321}
322
b66851c3
TP		 323static inline u64 mac80211_hwsim_get_tsf_raw(void)
324{
325 return ktime_to_us(ktime_get_real());
326}
327
2f40b940
JC		 328static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
329{
b66851c3 330 u64 now = mac80211_hwsim_get_tsf_raw();
2f40b940
JC		 331 return cpu_to_le64(now + data->tsf_offset);
332}
acc1e7a3 333
12ce8ba3 334static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
b66851c3 335 struct ieee80211_vif *vif)
12ce8ba3
JC		 336{
337 struct mac80211_hwsim_data *data = hw->priv;
338 return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
339}
340
341static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
342 struct ieee80211_vif *vif, u64 tsf)
343{
344 struct mac80211_hwsim_data *data = hw->priv;
45034bfb 345 u64 now = mac80211_hwsim_get_tsf(hw, vif);
c51f8783 346 u32 bcn_int = data->beacon_int;
45034bfb
TP		 347 s64 delta = tsf - now;
348
349 data->tsf_offset += delta;
c51f8783
TP		 350 /* adjust after beaconing with new timestamp at old TBTT */
351 data->bcn_delta = do_div(delta, bcn_int);
12ce8ba3
JC		 352}
353
acc1e7a3 354static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
e8261171
JB		 355 struct sk_buff *tx_skb,
356 struct ieee80211_channel *chan)
acc1e7a3
JM		 357{
358 struct mac80211_hwsim_data *data = hw->priv;
359 struct sk_buff *skb;
360 struct hwsim_radiotap_hdr *hdr;
361 u16 flags;
362 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
363 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
364
365 if (!netif_running(hwsim_mon))
366 return;
367
368 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
369 if (skb == NULL)
370 return;
371
372 hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
373 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
374 hdr->hdr.it_pad = 0;
375 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
f248f105
JM		 376 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
377 (1 << IEEE80211_RADIOTAP_RATE) |
2f40b940 378 (1 << IEEE80211_RADIOTAP_TSFT) |
f248f105 379 (1 << IEEE80211_RADIOTAP_CHANNEL));
2f40b940 380 hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
acc1e7a3
JM		 381 hdr->rt_flags = 0;
382 hdr->rt_rate = txrate->bitrate / 5;
e8261171 383 hdr->rt_channel = cpu_to_le16(chan->center_freq);
acc1e7a3
JM		 384 flags = IEEE80211_CHAN_2GHZ;
385 if (txrate->flags & IEEE80211_RATE_ERP_G)
386 flags |= IEEE80211_CHAN_OFDM;
387 else
388 flags |= IEEE80211_CHAN_CCK;
389 hdr->rt_chbitmask = cpu_to_le16(flags);
390
391 skb->dev = hwsim_mon;
392 skb_set_mac_header(skb, 0);
393 skb->ip_summed = CHECKSUM_UNNECESSARY;
394 skb->pkt_type = PACKET_OTHERHOST;
f248f105 395 skb->protocol = htons(ETH_P_802_2);
acc1e7a3
JM		 396 memset(skb->cb, 0, sizeof(skb->cb));
397 netif_rx(skb);
398}
399
400
e8261171
JB		 401static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
402 const u8 *addr)
6c085227 403{
6c085227 404 struct sk_buff *skb;
76a56eb3 405 struct hwsim_radiotap_ack_hdr *hdr;
6c085227
JM		 406 u16 flags;
407 struct ieee80211_hdr *hdr11;
408
409 if (!netif_running(hwsim_mon))
410 return;
411
412 skb = dev_alloc_skb(100);
413 if (skb == NULL)
414 return;
415
76a56eb3 416 hdr = (struct hwsim_radiotap_ack_hdr *) skb_put(skb, sizeof(*hdr));
6c085227
JM		 417 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
418 hdr->hdr.it_pad = 0;
419 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
420 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
421 (1 << IEEE80211_RADIOTAP_CHANNEL));
422 hdr->rt_flags = 0;
76a56eb3 423 hdr->pad = 0;
e8261171 424 hdr->rt_channel = cpu_to_le16(chan->center_freq);
6c085227
JM		 425 flags = IEEE80211_CHAN_2GHZ;
426 hdr->rt_chbitmask = cpu_to_le16(flags);
427
428 hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
429 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
430 IEEE80211_STYPE_ACK);
431 hdr11->duration_id = cpu_to_le16(0);
432 memcpy(hdr11->addr1, addr, ETH_ALEN);
433
434 skb->dev = hwsim_mon;
435 skb_set_mac_header(skb, 0);
436 skb->ip_summed = CHECKSUM_UNNECESSARY;
437 skb->pkt_type = PACKET_OTHERHOST;
438 skb->protocol = htons(ETH_P_802_2);
439 memset(skb->cb, 0, sizeof(skb->cb));
440 netif_rx(skb);
441}
442
443
fc6971d4
JM		 444static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
445 struct sk_buff *skb)
446{
447 switch (data->ps) {
448 case PS_DISABLED:
449 return true;
450 case PS_ENABLED:
451 return false;
452 case PS_AUTO_POLL:
453 /* TODO: accept (some) Beacons by default and other frames only
454 * if pending PS-Poll has been sent */
455 return true;
456 case PS_MANUAL_POLL:
457 /* Allow unicast frames to own address if there is a pending
458 * PS-Poll */
459 if (data->ps_poll_pending &&
460 memcmp(data->hw->wiphy->perm_addr, skb->data + 4,
461 ETH_ALEN) == 0) {
462 data->ps_poll_pending = false;
463 return true;
464 }
465 return false;
466 }
467
468 return true;
469}
470
471
265dc7f0
JM		 472struct mac80211_hwsim_addr_match_data {
473 bool ret;
474 const u8 *addr;
475};
476
477static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
478 struct ieee80211_vif *vif)
479{
480 struct mac80211_hwsim_addr_match_data *md = data;
481 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
482 md->ret = true;
483}
484
485
486static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
487 const u8 *addr)
488{
489 struct mac80211_hwsim_addr_match_data md;
490
491 if (memcmp(addr, data->hw->wiphy->perm_addr, ETH_ALEN) == 0)
492 return true;
493
494 md.ret = false;
495 md.addr = addr;
496 ieee80211_iterate_active_interfaces_atomic(data->hw,
8b2c9824 497 IEEE80211_IFACE_ITER_NORMAL,
265dc7f0
JM		 498 mac80211_hwsim_addr_iter,
499 &md);
500
501 return md.ret;
502}
503
7882513b
JL		 504static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
505 struct sk_buff *my_skb,
15e47304 506 int dst_portid)
7882513b
JL		 507{
508 struct sk_buff *skb;
509 struct mac80211_hwsim_data *data = hw->priv;
510 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
511 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
512 void *msg_head;
513 unsigned int hwsim_flags = 0;
514 int i;
515 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
516
7882513b
JL		 517 if (data->ps != PS_DISABLED)
518 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
519 /* If the queue contains MAX_QUEUE skb's drop some */
520 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
521 /* Droping until WARN_QUEUE level */
522 while (skb_queue_len(&data->pending) >= WARN_QUEUE)
523 skb_dequeue(&data->pending);
524 }
525
58050fce 526 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
7882513b
JL		 527 if (skb == NULL)
528 goto nla_put_failure;
529
530 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
531 HWSIM_CMD_FRAME);
532 if (msg_head == NULL) {
533 printk(KERN_DEBUG "mac80211_hwsim: problem with msg_head\n");
534 goto nla_put_failure;
535 }
536
633c9389
DM		 537 if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
538 sizeof(struct mac_address), data->addresses[1].addr))
539 goto nla_put_failure;
265dc7f0 540
7882513b 541 /* We get the skb->data */
633c9389
DM		 542 if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
543 goto nla_put_failure;
7882513b
JL		 544
545 /* We get the flags for this transmission, and we translate them to
546 wmediumd flags */
547
548 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
549 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
550
551 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
552 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
553
633c9389
DM		 554 if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
555 goto nla_put_failure;
7882513b
JL		 556
557 /* We get the tx control (rate and retries) info*/
558
559 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
560 tx_attempts[i].idx = info->status.rates[i].idx;
561 tx_attempts[i].count = info->status.rates[i].count;
562 }
563
633c9389
DM		 564 if (nla_put(skb, HWSIM_ATTR_TX_INFO,
565 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
566 tx_attempts))
567 goto nla_put_failure;
7882513b
JL		 568
569 /* We create a cookie to identify this skb */
633c9389
DM		 570 if (nla_put_u64(skb, HWSIM_ATTR_COOKIE, (unsigned long) my_skb))
571 goto nla_put_failure;
7882513b
JL		 572
573 genlmsg_end(skb, msg_head);
15e47304 574 genlmsg_unicast(&init_net, skb, dst_portid);
7882513b
JL		 575
576 /* Enqueue the packet */
577 skb_queue_tail(&data->pending, my_skb);
578 return;
579
580nla_put_failure:
c393862f 581 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 582}
583
e8261171
JB		 584static bool hwsim_chans_compat(struct ieee80211_channel *c1,
585 struct ieee80211_channel *c2)
586{
587 if (!c1 || !c2)
588 return false;
589
590 return c1->center_freq == c2->center_freq;
591}
592
593struct tx_iter_data {
594 struct ieee80211_channel *channel;
595 bool receive;
596};
597
598static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
599 struct ieee80211_vif *vif)
600{
601 struct tx_iter_data *data = _data;
602
603 if (!vif->chanctx_conf)
604 return;
605
606 if (!hwsim_chans_compat(data->channel,
4bf88530 607 rcu_dereference(vif->chanctx_conf)->def.chan))
e8261171
JB		 608 return;
609
610 data->receive = true;
611}
612
7882513b 613static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
e8261171
JB		 614 struct sk_buff *skb,
615 struct ieee80211_channel *chan)
acc1e7a3 616{
0e057d73
JB		 617 struct mac80211_hwsim_data *data = hw->priv, *data2;
618 bool ack = false;
e36cfdc9 619 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
acc1e7a3 620 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
e36cfdc9 621 struct ieee80211_rx_status rx_status;
b66851c3 622 u64 now;
acc1e7a3
JM		 623
624 memset(&rx_status, 0, sizeof(rx_status));
f4bda337 625 rx_status.flag |= RX_FLAG_MACTIME_START;
e8261171
JB		 626 rx_status.freq = chan->center_freq;
627 rx_status.band = chan->band;
dad6330d
KB		 628 if (info->control.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) {
629 rx_status.rate_idx =
630 ieee80211_rate_get_vht_mcs(&info->control.rates[0]);
631 rx_status.vht_nss =
632 ieee80211_rate_get_vht_nss(&info->control.rates[0]);
633 rx_status.flag |= RX_FLAG_VHT;
634 } else {
635 rx_status.rate_idx = info->control.rates[0].idx;
636 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
637 rx_status.flag |= RX_FLAG_HT;
638 }
281ed297
JM		 639 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
640 rx_status.flag |= RX_FLAG_40MHZ;
641 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
642 rx_status.flag |= RX_FLAG_SHORT_GI;
4b14c96d 643 /* TODO: simulate real signal strength (and optional packet loss) */
bdd7bd16 644 rx_status.signal = data->power_level - 50;
acc1e7a3 645
fc6971d4
JM		 646 if (data->ps != PS_DISABLED)
647 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
648
90e3012e
JB		 649 /* release the skb's source info */
650 skb_orphan(skb);
c0acf38e 651 skb_dst_drop(skb);
90e3012e
JB		 652 skb->mark = 0;
653 secpath_reset(skb);
654 nf_reset(skb);
655
b66851c3
TP		 656 /*
657 * Get absolute mactime here so all HWs RX at the "same time", and
658 * absolute TX time for beacon mactime so the timestamp matches.
659 * Giving beacons a different mactime than non-beacons looks messy, but
660 * it helps the Toffset be exact and a ~10us mactime discrepancy
661 * probably doesn't really matter.
662 */
663 if (ieee80211_is_beacon(hdr->frame_control) ||
664 ieee80211_is_probe_resp(hdr->frame_control))
665 now = data->abs_bcn_ts;
666 else
667 now = mac80211_hwsim_get_tsf_raw();
668
acc1e7a3 669 /* Copy skb to all enabled radios that are on the current frequency */
0e057d73
JB		 670 spin_lock(&hwsim_radio_lock);
671 list_for_each_entry(data2, &hwsim_radios, list) {
acc1e7a3 672 struct sk_buff *nskb;
e8261171
JB		 673 struct tx_iter_data tx_iter_data = {
674 .receive = false,
675 .channel = chan,
676 };
acc1e7a3 677
0e057d73 678 if (data == data2)
acc1e7a3 679 continue;
0e057d73 680
e8261171
JB		 681 if (!data2->started || (data2->idle && !data2->tmp_chan) ||
682 !hwsim_ps_rx_ok(data2, skb))
acc1e7a3
JM		 683 continue;
684
e8261171
JB		 685 if (!(data->group & data2->group))
686 continue;
687
688 if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
689 !hwsim_chans_compat(chan, data2->channel)) {
690 ieee80211_iterate_active_interfaces_atomic(
8b2c9824
JB		 691 data2->hw, IEEE80211_IFACE_ITER_NORMAL,
692 mac80211_hwsim_tx_iter, &tx_iter_data);
e8261171
JB		 693 if (!tx_iter_data.receive)
694 continue;
695 }
696
90b9e446
JB		 697 /*
698 * reserve some space for our vendor and the normal
699 * radiotap header, since we're copying anyway
700 */
a357d7f9
JB		 701 if (skb->len < PAGE_SIZE && paged_rx) {
702 struct page *page = alloc_page(GFP_ATOMIC);
703
704 if (!page)
705 continue;
706
707 nskb = dev_alloc_skb(128);
708 if (!nskb) {
709 __free_page(page);
710 continue;
711 }
712
713 memcpy(page_address(page), skb->data, skb->len);
714 skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
715 } else {
716 nskb = skb_copy(skb, GFP_ATOMIC);
717 if (!nskb)
718 continue;
719 }
acc1e7a3 720
265dc7f0 721 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
0e057d73 722 ack = true;
f483ad25 723
b66851c3 724 rx_status.mactime = now + data2->tsf_offset;
90b9e446
JB		 725#if 0
726 /*
727 * Don't enable this code by default as the OUI 00:00:00
728 * is registered to Xerox so we shouldn't use it here, it
729 * might find its way into pcap files.
730 * Note that this code requires the headroom in the SKB
731 * that was allocated earlier.
732 */
733 rx_status.vendor_radiotap_oui[0] = 0x00;
734 rx_status.vendor_radiotap_oui[1] = 0x00;
735 rx_status.vendor_radiotap_oui[2] = 0x00;
736 rx_status.vendor_radiotap_subns = 127;
737 /*
738 * Radiotap vendor namespaces can (and should) also be
739 * split into fields by using the standard radiotap
740 * presence bitmap mechanism. Use just BIT(0) here for
741 * the presence bitmap.
742 */
743 rx_status.vendor_radiotap_bitmap = BIT(0);
744 /* We have 8 bytes of (dummy) data */
745 rx_status.vendor_radiotap_len = 8;
746 /* For testing, also require it to be aligned */
747 rx_status.vendor_radiotap_align = 8;
748 /* push the data */
749 memcpy(skb_push(nskb, 8), "ABCDEFGH", 8);
750#endif
751
f1d58c25
JB		 752 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
753 ieee80211_rx_irqsafe(data2->hw, nskb);
acc1e7a3 754 }
0e057d73 755 spin_unlock(&hwsim_radio_lock);
acc1e7a3 756
e36cfdc9
JM		 757 return ack;
758}
759
36323f81
TH		 760static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
761 struct ieee80211_tx_control *control,
762 struct sk_buff *skb)
e36cfdc9 763{
e8261171
JB		 764 struct mac80211_hwsim_data *data = hw->priv;
765 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
766 struct ieee80211_chanctx_conf *chanctx_conf;
767 struct ieee80211_channel *channel;
0e057d73 768 bool ack;
15e47304 769 u32 _portid;
e36cfdc9 770
e8261171 771 if (WARN_ON(skb->len < 10)) {
e36cfdc9 772 /* Should not happen; just a sanity check for addr1 use */
fe0f3cd2 773 ieee80211_free_txskb(hw, skb);
7bb45683 774 return;
e36cfdc9
JM		 775 }
776
38ed5048 777 if (data->channels == 1) {
e8261171
JB		 778 channel = data->channel;
779 } else if (txi->hw_queue == 4) {
780 channel = data->tmp_chan;
781 } else {
782 chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf);
783 if (chanctx_conf)
4bf88530 784 channel = chanctx_conf->def.chan;
e8261171
JB		 785 else
786 channel = NULL;
787 }
788
789 if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
fe0f3cd2 790 ieee80211_free_txskb(hw, skb);
e8261171
JB		 791 return;
792 }
793
794 if (data->idle && !data->tmp_chan) {
795 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
fe0f3cd2 796 ieee80211_free_txskb(hw, skb);
e8261171
JB		 797 return;
798 }
799
800 if (txi->control.vif)
801 hwsim_check_magic(txi->control.vif);
802 if (control->sta)
803 hwsim_check_sta_magic(control->sta);
804
81338410 805 if (hw->flags & IEEE80211_HW_SUPPORTS_RC_TABLE)
1eb32179
KB		 806 ieee80211_get_tx_rates(txi->control.vif, control->sta, skb,
807 txi->control.rates,
808 ARRAY_SIZE(txi->control.rates));
e8261171 809
1eb32179 810 txi->rate_driver_data[0] = channel;
e8261171
JB		 811 mac80211_hwsim_monitor_rx(hw, skb, channel);
812
7882513b 813 /* wmediumd mode check */
15e47304 814 _portid = ACCESS_ONCE(wmediumd_portid);
7882513b 815
15e47304
EB		 816 if (_portid)
817 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
7882513b
JL		 818
819 /* NO wmediumd detected, perfect medium simulation */
e8261171 820 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
7882513b 821
6c085227
JM		 822 if (ack && skb->len >= 16) {
823 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
e8261171 824 mac80211_hwsim_monitor_ack(channel, hdr->addr2);
6c085227 825 }
e36cfdc9 826
e6a9854b 827 ieee80211_tx_info_clear_status(txi);
2a4ffa4c
JC		 828
829 /* frame was transmitted at most favorable rate at first attempt */
830 txi->control.rates[0].count = 1;
831 txi->control.rates[1].idx = -1;
832
e6a9854b
JB		 833 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
834 txi->flags |= IEEE80211_TX_STAT_ACK;
acc1e7a3 835 ieee80211_tx_status_irqsafe(hw, skb);
acc1e7a3
JM		 836}
837
838
839static int mac80211_hwsim_start(struct ieee80211_hw *hw)
840{
841 struct mac80211_hwsim_data *data = hw->priv;
c96c31e4 842 wiphy_debug(hw->wiphy, "%s\n", __func__);
3db1cd5c 843 data->started = true;
acc1e7a3
JM		 844 return 0;
845}
846
847
848static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
849{
850 struct mac80211_hwsim_data *data = hw->priv;
3db1cd5c 851 data->started = false;
01e59e46 852 tasklet_hrtimer_cancel(&data->beacon_timer);
c96c31e4 853 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 854}
855
856
857static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
1ed32e4f 858 struct ieee80211_vif *vif)
acc1e7a3 859{
c96c31e4 860 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 861 __func__, ieee80211_vif_type_p2p(vif),
862 vif->addr);
1ed32e4f 863 hwsim_set_magic(vif);
e8261171
JB		 864
865 vif->cab_queue = 0;
866 vif->hw_queue[IEEE80211_AC_VO] = 0;
867 vif->hw_queue[IEEE80211_AC_VI] = 1;
868 vif->hw_queue[IEEE80211_AC_BE] = 2;
869 vif->hw_queue[IEEE80211_AC_BK] = 3;
870
acc1e7a3
JM		 871 return 0;
872}
873
874
c35d0270
JB		 875static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
876 struct ieee80211_vif *vif,
2ca27bcf
JB		 877 enum nl80211_iftype newtype,
878 bool newp2p)
c35d0270 879{
2ca27bcf 880 newtype = ieee80211_iftype_p2p(newtype, newp2p);
c35d0270
JB		 881 wiphy_debug(hw->wiphy,
882 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
2ca27bcf
JB		 883 __func__, ieee80211_vif_type_p2p(vif),
884 newtype, vif->addr);
c35d0270
JB		 885 hwsim_check_magic(vif);
886
3eb92f6a
JB		 887 /*
888 * interface may change from non-AP to AP in
889 * which case this needs to be set up again
890 */
891 vif->cab_queue = 0;
892
c35d0270
JB		 893 return 0;
894}
895
acc1e7a3 896static void mac80211_hwsim_remove_interface(
1ed32e4f 897 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
acc1e7a3 898{
c96c31e4 899 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 900 __func__, ieee80211_vif_type_p2p(vif),
901 vif->addr);
1ed32e4f
JB		 902 hwsim_check_magic(vif);
903 hwsim_clear_magic(vif);
acc1e7a3
JM		 904}
905
e8261171
JB		 906static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
907 struct sk_buff *skb,
908 struct ieee80211_channel *chan)
909{
910 u32 _pid = ACCESS_ONCE(wmediumd_portid);
911
81338410 912 if (hw->flags & IEEE80211_HW_SUPPORTS_RC_TABLE) {
1eb32179
KB		 913 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
914 ieee80211_get_tx_rates(txi->control.vif, NULL, skb,
915 txi->control.rates,
916 ARRAY_SIZE(txi->control.rates));
917 }
918
e8261171
JB		 919 mac80211_hwsim_monitor_rx(hw, skb, chan);
920
921 if (_pid)
922 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
923
924 mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
925 dev_kfree_skb(skb);
926}
acc1e7a3
JM		 927
928static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
929 struct ieee80211_vif *vif)
930{
b66851c3
TP		 931 struct mac80211_hwsim_data *data = arg;
932 struct ieee80211_hw *hw = data->hw;
933 struct ieee80211_tx_info *info;
934 struct ieee80211_rate *txrate;
935 struct ieee80211_mgmt *mgmt;
acc1e7a3 936 struct sk_buff *skb;
acc1e7a3 937
8aa21e6f
JB		 938 hwsim_check_magic(vif);
939
55b39619 940 if (vif->type != NL80211_IFTYPE_AP &&
2b2d7795
JB		 941 vif->type != NL80211_IFTYPE_MESH_POINT &&
942 vif->type != NL80211_IFTYPE_ADHOC)
acc1e7a3
JM		 943 return;
944
945 skb = ieee80211_beacon_get(hw, vif);
946 if (skb == NULL)
947 return;
b66851c3 948 info = IEEE80211_SKB_CB(skb);
81338410 949 if (hw->flags & IEEE80211_HW_SUPPORTS_RC_TABLE)
1eb32179
KB		 950 ieee80211_get_tx_rates(vif, NULL, skb,
951 info->control.rates,
952 ARRAY_SIZE(info->control.rates));
953
b66851c3
TP		 954 txrate = ieee80211_get_tx_rate(hw, info);
955
956 mgmt = (struct ieee80211_mgmt *) skb->data;
957 /* fake header transmission time */
958 data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
959 mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
960 data->tsf_offset +
961 24 * 8 * 10 / txrate->bitrate);
7882513b 962
e8261171 963 mac80211_hwsim_tx_frame(hw, skb,
4bf88530 964 rcu_dereference(vif->chanctx_conf)->def.chan);
acc1e7a3
JM		 965}
966
01e59e46
TP		 967static enum hrtimer_restart
968mac80211_hwsim_beacon(struct hrtimer *timer)
acc1e7a3 969{
01e59e46
TP		 970 struct mac80211_hwsim_data *data =
971 container_of(timer, struct mac80211_hwsim_data,
972 beacon_timer.timer);
973 struct ieee80211_hw *hw = data->hw;
974 u64 bcn_int = data->beacon_int;
975 ktime_t next_bcn;
acc1e7a3 976
4c4c671a 977 if (!data->started)
01e59e46 978 goto out;
acc1e7a3 979
f248f105 980 ieee80211_iterate_active_interfaces_atomic(
8b2c9824 981 hw, IEEE80211_IFACE_ITER_NORMAL,
b66851c3 982 mac80211_hwsim_beacon_tx, data);
acc1e7a3 983
c51f8783
TP		 984 /* beacon at new TBTT + beacon interval */
985 if (data->bcn_delta) {
986 bcn_int -= data->bcn_delta;
987 data->bcn_delta = 0;
988 }
989
01e59e46
TP		 990 next_bcn = ktime_add(hrtimer_get_expires(timer),
991 ns_to_ktime(bcn_int * 1000));
992 tasklet_hrtimer_start(&data->beacon_timer, next_bcn, HRTIMER_MODE_ABS);
993out:
994 return HRTIMER_NORESTART;
acc1e7a3
JM		 995}
996
675a0b04
KB		 997static const char * const hwsim_chanwidths[] = {
998 [NL80211_CHAN_WIDTH_20_NOHT] = "noht",
999 [NL80211_CHAN_WIDTH_20] = "ht20",
1000 [NL80211_CHAN_WIDTH_40] = "ht40",
1001 [NL80211_CHAN_WIDTH_80] = "vht80",
1002 [NL80211_CHAN_WIDTH_80P80] = "vht80p80",
1003 [NL80211_CHAN_WIDTH_160] = "vht160",
0aaffa9b 1004};
acc1e7a3 1005
e8975581 1006static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
acc1e7a3
JM		 1007{
1008 struct mac80211_hwsim_data *data = hw->priv;
e8975581 1009 struct ieee80211_conf *conf = &hw->conf;
0f78231b
JB		 1010 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
1011 [IEEE80211_SMPS_AUTOMATIC] = "auto",
1012 [IEEE80211_SMPS_OFF] = "off",
1013 [IEEE80211_SMPS_STATIC] = "static",
1014 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
1015 };
1016
675a0b04
KB		 1017 if (conf->chandef.chan)
1018 wiphy_debug(hw->wiphy,
1019 "%s (freq=%d(%d - %d)/%s idle=%d ps=%d smps=%s)\n",
1020 __func__,
1021 conf->chandef.chan->center_freq,
1022 conf->chandef.center_freq1,
1023 conf->chandef.center_freq2,
1024 hwsim_chanwidths[conf->chandef.width],
1025 !!(conf->flags & IEEE80211_CONF_IDLE),
1026 !!(conf->flags & IEEE80211_CONF_PS),
1027 smps_modes[conf->smps_mode]);
1028 else
1029 wiphy_debug(hw->wiphy,
1030 "%s (freq=0 idle=%d ps=%d smps=%s)\n",
1031 __func__,
1032 !!(conf->flags & IEEE80211_CONF_IDLE),
1033 !!(conf->flags & IEEE80211_CONF_PS),
1034 smps_modes[conf->smps_mode]);
acc1e7a3 1035
70541839
JM		 1036 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1037
675a0b04 1038 data->channel = conf->chandef.chan;
e8261171 1039
38ed5048 1040 WARN_ON(data->channel && data->channels > 1);
e8261171 1041
bdd7bd16 1042 data->power_level = conf->power_level;
4c4c671a 1043 if (!data->started || !data->beacon_int)
01e59e46
TP		 1044 tasklet_hrtimer_cancel(&data->beacon_timer);
1045 else if (!hrtimer_is_queued(&data->beacon_timer.timer)) {
c51f8783
TP		 1046 u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
1047 u32 bcn_int = data->beacon_int;
1048 u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1049
01e59e46 1050 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1051 ns_to_ktime(until_tbtt * 1000),
01e59e46
TP		 1052 HRTIMER_MODE_REL);
1053 }
acc1e7a3
JM		 1054
1055 return 0;
1056}
1057
1058
1059static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
1060 unsigned int changed_flags,
3ac64bee 1061 unsigned int *total_flags,u64 multicast)
acc1e7a3
JM		 1062{
1063 struct mac80211_hwsim_data *data = hw->priv;
1064
c96c31e4 1065 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 1066
1067 data->rx_filter = 0;
1068 if (*total_flags & FIF_PROMISC_IN_BSS)
1069 data->rx_filter |= FIF_PROMISC_IN_BSS;
1070 if (*total_flags & FIF_ALLMULTI)
1071 data->rx_filter |= FIF_ALLMULTI;
1072
1073 *total_flags = data->rx_filter;
1074}
1075
0bb861e6
JM		 1076static void mac80211_hwsim_bcn_en_iter(void *data, u8 *mac,
1077 struct ieee80211_vif *vif)
1078{
1079 unsigned int *count = data;
1080 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1081
1082 if (vp->bcn_en)
1083 (*count)++;
1084}
1085
8aa21e6f
JB		 1086static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
1087 struct ieee80211_vif *vif,
1088 struct ieee80211_bss_conf *info,
1089 u32 changed)
1090{
fc6971d4 1091 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
57c4d7b4 1092 struct mac80211_hwsim_data *data = hw->priv;
fc6971d4 1093
8aa21e6f 1094 hwsim_check_magic(vif);
fe63bfa3 1095
0bb861e6
JM		 1096 wiphy_debug(hw->wiphy, "%s(changed=0x%x vif->addr=%pM)\n",
1097 __func__, changed, vif->addr);
fe63bfa3 1098
2d0ddec5 1099 if (changed & BSS_CHANGED_BSSID) {
c96c31e4
JP		 1100 wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
1101 __func__, info->bssid);
2d0ddec5
JB		 1102 memcpy(vp->bssid, info->bssid, ETH_ALEN);
1103 }
1104
fe63bfa3 1105 if (changed & BSS_CHANGED_ASSOC) {
c96c31e4
JP		 1106 wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
1107 info->assoc, info->aid);
fc6971d4
JM		 1108 vp->assoc = info->assoc;
1109 vp->aid = info->aid;
fe63bfa3
JM		 1110 }
1111
57c4d7b4 1112 if (changed & BSS_CHANGED_BEACON_INT) {
c96c31e4 1113 wiphy_debug(hw->wiphy, " BCNINT: %d\n", info->beacon_int);
01e59e46
TP		 1114 data->beacon_int = info->beacon_int * 1024;
1115 }
1116
1117 if (changed & BSS_CHANGED_BEACON_ENABLED) {
1118 wiphy_debug(hw->wiphy, " BCN EN: %d\n", info->enable_beacon);
0bb861e6 1119 vp->bcn_en = info->enable_beacon;
01e59e46
TP		 1120 if (data->started &&
1121 !hrtimer_is_queued(&data->beacon_timer.timer) &&
1122 info->enable_beacon) {
c51f8783
TP		 1123 u64 tsf, until_tbtt;
1124 u32 bcn_int;
01e59e46
TP		 1125 if (WARN_ON(!data->beacon_int))
1126 data->beacon_int = 1000 * 1024;
c51f8783
TP		 1127 tsf = mac80211_hwsim_get_tsf(hw, vif);
1128 bcn_int = data->beacon_int;
1129 until_tbtt = bcn_int - do_div(tsf, bcn_int);
01e59e46 1130 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1131 ns_to_ktime(until_tbtt * 1000),
01e59e46 1132 HRTIMER_MODE_REL);
0bb861e6
JM		 1133 } else if (!info->enable_beacon) {
1134 unsigned int count = 0;
cdb1b805 1135 ieee80211_iterate_active_interfaces_atomic(
0bb861e6
JM		 1136 data->hw, IEEE80211_IFACE_ITER_NORMAL,
1137 mac80211_hwsim_bcn_en_iter, &count);
1138 wiphy_debug(hw->wiphy, " beaconing vifs remaining: %u",
1139 count);
1140 if (count == 0)
1141 tasklet_hrtimer_cancel(&data->beacon_timer);
1142 }
57c4d7b4
JB		 1143 }
1144
fe63bfa3 1145 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
c96c31e4
JP		 1146 wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
1147 info->use_cts_prot);
fe63bfa3
JM		 1148 }
1149
1150 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
c96c31e4
JP		 1151 wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
1152 info->use_short_preamble);
fe63bfa3
JM		 1153 }
1154
1155 if (changed & BSS_CHANGED_ERP_SLOT) {
c96c31e4 1156 wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
fe63bfa3
JM		 1157 }
1158
1159 if (changed & BSS_CHANGED_HT) {
4bf88530
JB		 1160 wiphy_debug(hw->wiphy, " HT: op_mode=0x%x\n",
1161 info->ht_operation_mode);
fe63bfa3
JM		 1162 }
1163
1164 if (changed & BSS_CHANGED_BASIC_RATES) {
c96c31e4
JP		 1165 wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
1166 (unsigned long long) info->basic_rates);
fe63bfa3 1167 }
cbc668a7
JB		 1168
1169 if (changed & BSS_CHANGED_TXPOWER)
1170 wiphy_debug(hw->wiphy, " TX Power: %d dBm\n", info->txpower);
8aa21e6f
JB		 1171}
1172
1d669cbf
JB		 1173static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
1174 struct ieee80211_vif *vif,
1175 struct ieee80211_sta *sta)
1176{
1177 hwsim_check_magic(vif);
1178 hwsim_set_sta_magic(sta);
1179
1180 return 0;
1181}
1182
1183static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
1184 struct ieee80211_vif *vif,
1185 struct ieee80211_sta *sta)
1186{
1187 hwsim_check_magic(vif);
1188 hwsim_clear_sta_magic(sta);
1189
1190 return 0;
1191}
1192
8aa21e6f
JB		 1193static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
1194 struct ieee80211_vif *vif,
17741cdc
JB		 1195 enum sta_notify_cmd cmd,
1196 struct ieee80211_sta *sta)
8aa21e6f
JB		 1197{
1198 hwsim_check_magic(vif);
1d669cbf 1199
81c06523 1200 switch (cmd) {
89fad578
CL		 1201 case STA_NOTIFY_SLEEP:
1202 case STA_NOTIFY_AWAKE:
1203 /* TODO: make good use of these flags */
1204 break;
1d669cbf
JB		 1205 default:
1206 WARN(1, "Invalid sta notify: %d\n", cmd);
1207 break;
81c06523
JB		 1208 }
1209}
1210
1211static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
1212 struct ieee80211_sta *sta,
1213 bool set)
1214{
1215 hwsim_check_sta_magic(sta);
1216 return 0;
8aa21e6f 1217}
acc1e7a3 1218
1e898ff8 1219static int mac80211_hwsim_conf_tx(
8a3a3c85
EP		 1220 struct ieee80211_hw *hw,
1221 struct ieee80211_vif *vif, u16 queue,
1e898ff8
JM		 1222 const struct ieee80211_tx_queue_params *params)
1223{
c96c31e4
JP		 1224 wiphy_debug(hw->wiphy,
1225 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1226 __func__, queue,
1227 params->txop, params->cw_min,
1228 params->cw_max, params->aifs);
1e898ff8
JM		 1229 return 0;
1230}
1231
1289723e
HS		 1232static int mac80211_hwsim_get_survey(
1233 struct ieee80211_hw *hw, int idx,
1234 struct survey_info *survey)
1235{
1236 struct ieee80211_conf *conf = &hw->conf;
1237
c96c31e4 1238 wiphy_debug(hw->wiphy, "%s (idx=%d)\n", __func__, idx);
1289723e
HS		 1239
1240 if (idx != 0)
1241 return -ENOENT;
1242
1243 /* Current channel */
675a0b04 1244 survey->channel = conf->chandef.chan;
1289723e
HS		 1245
1246 /*
1247 * Magically conjured noise level --- this is only ok for simulated hardware.
1248 *
1249 * A real driver which cannot determine the real channel noise MUST NOT
1250 * report any noise, especially not a magically conjured one :-)
1251 */
1252 survey->filled = SURVEY_INFO_NOISE_DBM;
1253 survey->noise = -92;
1254
1255 return 0;
1256}
1257
aff89a9b
JB		 1258#ifdef CONFIG_NL80211_TESTMODE
1259/*
1260 * This section contains example code for using netlink
1261 * attributes with the testmode command in nl80211.
1262 */
1263
1264/* These enums need to be kept in sync with userspace */
1265enum hwsim_testmode_attr {
1266 __HWSIM_TM_ATTR_INVALID = 0,
1267 HWSIM_TM_ATTR_CMD = 1,
1268 HWSIM_TM_ATTR_PS = 2,
1269
1270 /* keep last */
1271 __HWSIM_TM_ATTR_AFTER_LAST,
1272 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1273};
1274
1275enum hwsim_testmode_cmd {
1276 HWSIM_TM_CMD_SET_PS = 0,
1277 HWSIM_TM_CMD_GET_PS = 1,
4d6d0ae2
JB		 1278 HWSIM_TM_CMD_STOP_QUEUES = 2,
1279 HWSIM_TM_CMD_WAKE_QUEUES = 3,
aff89a9b
JB		 1280};
1281
1282static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1283 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1284 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1285};
1286
1287static int hwsim_fops_ps_write(void *dat, u64 val);
1288
5bc38193 1289static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
52981cd7 1290 struct ieee80211_vif *vif,
5bc38193 1291 void *data, int len)
aff89a9b
JB		 1292{
1293 struct mac80211_hwsim_data *hwsim = hw->priv;
1294 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1295 struct sk_buff *skb;
1296 int err, ps;
1297
1298 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
1299 hwsim_testmode_policy);
1300 if (err)
1301 return err;
1302
1303 if (!tb[HWSIM_TM_ATTR_CMD])
1304 return -EINVAL;
1305
1306 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1307 case HWSIM_TM_CMD_SET_PS:
1308 if (!tb[HWSIM_TM_ATTR_PS])
1309 return -EINVAL;
1310 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1311 return hwsim_fops_ps_write(hwsim, ps);
1312 case HWSIM_TM_CMD_GET_PS:
1313 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1314 nla_total_size(sizeof(u32)));
1315 if (!skb)
1316 return -ENOMEM;
633c9389
DM		 1317 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
1318 goto nla_put_failure;
aff89a9b 1319 return cfg80211_testmode_reply(skb);
4d6d0ae2
JB		 1320 case HWSIM_TM_CMD_STOP_QUEUES:
1321 ieee80211_stop_queues(hw);
1322 return 0;
1323 case HWSIM_TM_CMD_WAKE_QUEUES:
1324 ieee80211_wake_queues(hw);
1325 return 0;
aff89a9b
JB		 1326 default:
1327 return -EOPNOTSUPP;
1328 }
1329
1330 nla_put_failure:
1331 kfree_skb(skb);
1332 return -ENOBUFS;
1333}
1334#endif
1335
8b73d13a
JB		 1336static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1337 struct ieee80211_vif *vif,
1338 enum ieee80211_ampdu_mlme_action action,
0b01f030
JB		 1339 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
1340 u8 buf_size)
8b73d13a
JB		 1341{
1342 switch (action) {
1343 case IEEE80211_AMPDU_TX_START:
1344 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1345 break;
18b559d5
JB		 1346 case IEEE80211_AMPDU_TX_STOP_CONT:
1347 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1348 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
8b73d13a
JB		 1349 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1350 break;
1351 case IEEE80211_AMPDU_TX_OPERATIONAL:
1352 break;
1353 case IEEE80211_AMPDU_RX_START:
1354 case IEEE80211_AMPDU_RX_STOP:
1355 break;
1356 default:
1357 return -EOPNOTSUPP;
1358 }
1359
1360 return 0;
1361}
1362
39ecc01d 1363static void mac80211_hwsim_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
a80f7c0b 1364{
7882513b 1365 /* Not implemented, queues only on kernel side */
a80f7c0b
JB		 1366}
1367
e8261171 1368static void hw_scan_work(struct work_struct *work)
69068036 1369{
e8261171
JB		 1370 struct mac80211_hwsim_data *hwsim =
1371 container_of(work, struct mac80211_hwsim_data, hw_scan.work);
1372 struct cfg80211_scan_request *req = hwsim->hw_scan_request;
1373 int dwell, i;
69068036 1374
e8261171
JB		 1375 mutex_lock(&hwsim->mutex);
1376 if (hwsim->scan_chan_idx >= req->n_channels) {
1377 wiphy_debug(hwsim->hw->wiphy, "hw scan complete\n");
1378 ieee80211_scan_completed(hwsim->hw, false);
1379 hwsim->hw_scan_request = NULL;
1380 hwsim->hw_scan_vif = NULL;
1381 hwsim->tmp_chan = NULL;
1382 mutex_unlock(&hwsim->mutex);
1383 return;
1384 }
1385
1386 wiphy_debug(hwsim->hw->wiphy, "hw scan %d MHz\n",
1387 req->channels[hwsim->scan_chan_idx]->center_freq);
1388
1389 hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
8fe02e16 1390 if (hwsim->tmp_chan->flags & IEEE80211_CHAN_NO_IR ||
e8261171
JB		 1391 !req->n_ssids) {
1392 dwell = 120;
1393 } else {
1394 dwell = 30;
1395 /* send probes */
1396 for (i = 0; i < req->n_ssids; i++) {
1397 struct sk_buff *probe;
1398
1399 probe = ieee80211_probereq_get(hwsim->hw,
1400 hwsim->hw_scan_vif,
1401 req->ssids[i].ssid,
1402 req->ssids[i].ssid_len,
b9a9ada1 1403 req->ie_len);
e8261171
JB		 1404 if (!probe)
1405 continue;
b9a9ada1
JB		 1406
1407 if (req->ie_len)
1408 memcpy(skb_put(probe, req->ie_len), req->ie,
1409 req->ie_len);
1410
e8261171
JB		 1411 local_bh_disable();
1412 mac80211_hwsim_tx_frame(hwsim->hw, probe,
1413 hwsim->tmp_chan);
1414 local_bh_enable();
1415 }
1416 }
1417 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
1418 msecs_to_jiffies(dwell));
1419 hwsim->scan_chan_idx++;
1420 mutex_unlock(&hwsim->mutex);
69068036
JB		 1421}
1422
1423static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
a060bbfe 1424 struct ieee80211_vif *vif,
69068036
JB		 1425 struct cfg80211_scan_request *req)
1426{
e8261171 1427 struct mac80211_hwsim_data *hwsim = hw->priv;
69068036 1428
e8261171
JB		 1429 mutex_lock(&hwsim->mutex);
1430 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1431 mutex_unlock(&hwsim->mutex);
1432 return -EBUSY;
1433 }
1434 hwsim->hw_scan_request = req;
1435 hwsim->hw_scan_vif = vif;
1436 hwsim->scan_chan_idx = 0;
1437 mutex_unlock(&hwsim->mutex);
69068036 1438
e8261171 1439 wiphy_debug(hw->wiphy, "hwsim hw_scan request\n");
69068036 1440
e8261171 1441 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
69068036
JB		 1442
1443 return 0;
1444}
1445
e8261171
JB		 1446static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
1447 struct ieee80211_vif *vif)
1448{
1449 struct mac80211_hwsim_data *hwsim = hw->priv;
1450
1451 wiphy_debug(hw->wiphy, "hwsim cancel_hw_scan\n");
1452
1453 cancel_delayed_work_sync(&hwsim->hw_scan);
1454
1455 mutex_lock(&hwsim->mutex);
1456 ieee80211_scan_completed(hwsim->hw, true);
1457 hwsim->tmp_chan = NULL;
1458 hwsim->hw_scan_request = NULL;
1459 hwsim->hw_scan_vif = NULL;
1460 mutex_unlock(&hwsim->mutex);
1461}
1462
f74cb0f7
LR		 1463static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw)
1464{
1465 struct mac80211_hwsim_data *hwsim = hw->priv;
1466
1467 mutex_lock(&hwsim->mutex);
1468
1469 if (hwsim->scanning) {
1470 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
1471 goto out;
1472 }
1473
1474 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
1475 hwsim->scanning = true;
1476
1477out:
1478 mutex_unlock(&hwsim->mutex);
1479}
1480
1481static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw)
1482{
1483 struct mac80211_hwsim_data *hwsim = hw->priv;
1484
1485 mutex_lock(&hwsim->mutex);
1486
1487 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
23ff98fc 1488 hwsim->scanning = false;
f74cb0f7
LR		 1489
1490 mutex_unlock(&hwsim->mutex);
1491}
1492
e8261171
JB		 1493static void hw_roc_done(struct work_struct *work)
1494{
1495 struct mac80211_hwsim_data *hwsim =
1496 container_of(work, struct mac80211_hwsim_data, roc_done.work);
1497
1498 mutex_lock(&hwsim->mutex);
1499 ieee80211_remain_on_channel_expired(hwsim->hw);
1500 hwsim->tmp_chan = NULL;
1501 mutex_unlock(&hwsim->mutex);
1502
1503 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC expired\n");
1504}
1505
1506static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
49884568 1507 struct ieee80211_vif *vif,
e8261171 1508 struct ieee80211_channel *chan,
d339d5ca
IP		 1509 int duration,
1510 enum ieee80211_roc_type type)
e8261171
JB		 1511{
1512 struct mac80211_hwsim_data *hwsim = hw->priv;
1513
1514 mutex_lock(&hwsim->mutex);
1515 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1516 mutex_unlock(&hwsim->mutex);
1517 return -EBUSY;
1518 }
1519
1520 hwsim->tmp_chan = chan;
1521 mutex_unlock(&hwsim->mutex);
1522
1523 wiphy_debug(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
1524 chan->center_freq, duration);
1525
1526 ieee80211_ready_on_channel(hw);
1527
1528 ieee80211_queue_delayed_work(hw, &hwsim->roc_done,
1529 msecs_to_jiffies(duration));
1530 return 0;
1531}
1532
1533static int mac80211_hwsim_croc(struct ieee80211_hw *hw)
1534{
1535 struct mac80211_hwsim_data *hwsim = hw->priv;
1536
1537 cancel_delayed_work_sync(&hwsim->roc_done);
1538
1539 mutex_lock(&hwsim->mutex);
1540 hwsim->tmp_chan = NULL;
1541 mutex_unlock(&hwsim->mutex);
1542
1543 wiphy_debug(hw->wiphy, "hwsim ROC canceled\n");
1544
1545 return 0;
1546}
1547
1548static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
1549 struct ieee80211_chanctx_conf *ctx)
1550{
1551 hwsim_set_chanctx_magic(ctx);
4bf88530
JB		 1552 wiphy_debug(hw->wiphy,
1553 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1554 ctx->def.chan->center_freq, ctx->def.width,
1555 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1556 return 0;
1557}
1558
1559static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
1560 struct ieee80211_chanctx_conf *ctx)
1561{
4bf88530
JB		 1562 wiphy_debug(hw->wiphy,
1563 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1564 ctx->def.chan->center_freq, ctx->def.width,
1565 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1566 hwsim_check_chanctx_magic(ctx);
1567 hwsim_clear_chanctx_magic(ctx);
1568}
1569
1570static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
1571 struct ieee80211_chanctx_conf *ctx,
1572 u32 changed)
1573{
1574 hwsim_check_chanctx_magic(ctx);
4bf88530
JB		 1575 wiphy_debug(hw->wiphy,
1576 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1577 ctx->def.chan->center_freq, ctx->def.width,
1578 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1579}
1580
1581static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
1582 struct ieee80211_vif *vif,
1583 struct ieee80211_chanctx_conf *ctx)
1584{
1585 hwsim_check_magic(vif);
1586 hwsim_check_chanctx_magic(ctx);
1587
1588 return 0;
1589}
1590
1591static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
1592 struct ieee80211_vif *vif,
1593 struct ieee80211_chanctx_conf *ctx)
1594{
1595 hwsim_check_magic(vif);
1596 hwsim_check_chanctx_magic(ctx);
1597}
1598
38ed5048 1599static const struct ieee80211_ops mac80211_hwsim_ops = {
acc1e7a3
JM		 1600 .tx = mac80211_hwsim_tx,
1601 .start = mac80211_hwsim_start,
1602 .stop = mac80211_hwsim_stop,
1603 .add_interface = mac80211_hwsim_add_interface,
c35d0270 1604 .change_interface = mac80211_hwsim_change_interface,
acc1e7a3
JM		 1605 .remove_interface = mac80211_hwsim_remove_interface,
1606 .config = mac80211_hwsim_config,
1607 .configure_filter = mac80211_hwsim_configure_filter,
8aa21e6f 1608 .bss_info_changed = mac80211_hwsim_bss_info_changed,
1d669cbf
JB		 1609 .sta_add = mac80211_hwsim_sta_add,
1610 .sta_remove = mac80211_hwsim_sta_remove,
8aa21e6f 1611 .sta_notify = mac80211_hwsim_sta_notify,
81c06523 1612 .set_tim = mac80211_hwsim_set_tim,
1e898ff8 1613 .conf_tx = mac80211_hwsim_conf_tx,
1289723e 1614 .get_survey = mac80211_hwsim_get_survey,
aff89a9b 1615 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
8b73d13a 1616 .ampdu_action = mac80211_hwsim_ampdu_action,
f74cb0f7
LR		 1617 .sw_scan_start = mac80211_hwsim_sw_scan,
1618 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
a80f7c0b 1619 .flush = mac80211_hwsim_flush,
12ce8ba3
JC		 1620 .get_tsf = mac80211_hwsim_get_tsf,
1621 .set_tsf = mac80211_hwsim_set_tsf,
acc1e7a3
JM		 1622};
1623
38ed5048 1624static struct ieee80211_ops mac80211_hwsim_mchan_ops;
acc1e7a3 1625
e4afb603 1626static void mac80211_hwsim_destroy_radio(struct mac80211_hwsim_data *data)
acc1e7a3 1627{
e4afb603
JB		 1628 debugfs_remove_recursive(data->debugfs);
1629 ieee80211_unregister_hw(data->hw);
1630 device_release_driver(data->dev);
1631 device_unregister(data->dev);
1632 ieee80211_free_hw(data->hw);
1633}
0e057d73 1634
e4afb603
JB		 1635static void mac80211_hwsim_free(void)
1636{
1637 struct mac80211_hwsim_data *data;
0e057d73
JB		 1638
1639 spin_lock_bh(&hwsim_radio_lock);
e4afb603
JB		 1640 while ((data = list_first_entry_or_null(&hwsim_radios,
1641 struct mac80211_hwsim_data,
1642 list))) {
1643 list_del(&data->list);
1644 spin_unlock_bh(&hwsim_radio_lock);
1645 mac80211_hwsim_destroy_radio(data);
1646 spin_lock_bh(&hwsim_radio_lock);
acc1e7a3 1647 }
e4afb603 1648 spin_unlock_bh(&hwsim_radio_lock);
acc1e7a3
JM		 1649 class_destroy(hwsim_class);
1650}
1651
c07fe5ae
SL		 1652static struct platform_driver mac80211_hwsim_driver = {
1653 .driver = {
1654 .name = "mac80211_hwsim",
1655 .owner = THIS_MODULE,
1656 },
acc1e7a3
JM		 1657};
1658
98d2faae
SH		 1659static const struct net_device_ops hwsim_netdev_ops = {
1660 .ndo_start_xmit = hwsim_mon_xmit,
1661 .ndo_change_mtu = eth_change_mtu,
1662 .ndo_set_mac_address = eth_mac_addr,
1663 .ndo_validate_addr = eth_validate_addr,
1664};
acc1e7a3
JM		 1665
1666static void hwsim_mon_setup(struct net_device *dev)
1667{
98d2faae 1668 dev->netdev_ops = &hwsim_netdev_ops;
acc1e7a3
JM		 1669 dev->destructor = free_netdev;
1670 ether_setup(dev);
1671 dev->tx_queue_len = 0;
1672 dev->type = ARPHRD_IEEE80211_RADIOTAP;
1673 memset(dev->dev_addr, 0, ETH_ALEN);
1674 dev->dev_addr[0] = 0x12;
1675}
1676
1677
fc6971d4
JM		 1678static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
1679{
1680 struct mac80211_hwsim_data *data = dat;
1681 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
fc6971d4
JM		 1682 struct sk_buff *skb;
1683 struct ieee80211_pspoll *pspoll;
1684
1685 if (!vp->assoc)
1686 return;
1687
c96c31e4
JP		 1688 wiphy_debug(data->hw->wiphy,
1689 "%s: send PS-Poll to %pM for aid %d\n",
1690 __func__, vp->bssid, vp->aid);
fc6971d4
JM		 1691
1692 skb = dev_alloc_skb(sizeof(*pspoll));
1693 if (!skb)
1694 return;
1695 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
1696 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
1697 IEEE80211_STYPE_PSPOLL |
1698 IEEE80211_FCTL_PM);
1699 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
1700 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
1701 memcpy(pspoll->ta, mac, ETH_ALEN);
7882513b 1702
e8261171
JB		 1703 rcu_read_lock();
1704 mac80211_hwsim_tx_frame(data->hw, skb,
4bf88530 1705 rcu_dereference(vif->chanctx_conf)->def.chan);
e8261171 1706 rcu_read_unlock();
fc6971d4
JM		 1707}
1708
fc6971d4
JM		 1709static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
1710 struct ieee80211_vif *vif, int ps)
1711{
1712 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
fc6971d4
JM		 1713 struct sk_buff *skb;
1714 struct ieee80211_hdr *hdr;
1715
1716 if (!vp->assoc)
1717 return;
1718
c96c31e4
JP		 1719 wiphy_debug(data->hw->wiphy,
1720 "%s: send data::nullfunc to %pM ps=%d\n",
1721 __func__, vp->bssid, ps);
fc6971d4
JM		 1722
1723 skb = dev_alloc_skb(sizeof(*hdr));
1724 if (!skb)
1725 return;
1726 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
1727 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1728 IEEE80211_STYPE_NULLFUNC |
1729 (ps ? IEEE80211_FCTL_PM : 0));
1730 hdr->duration_id = cpu_to_le16(0);
1731 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
1732 memcpy(hdr->addr2, mac, ETH_ALEN);
1733 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
7882513b 1734
e8261171
JB		 1735 rcu_read_lock();
1736 mac80211_hwsim_tx_frame(data->hw, skb,
4bf88530 1737 rcu_dereference(vif->chanctx_conf)->def.chan);
e8261171 1738 rcu_read_unlock();
fc6971d4
JM		 1739}
1740
1741
1742static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
1743 struct ieee80211_vif *vif)
1744{
1745 struct mac80211_hwsim_data *data = dat;
1746 hwsim_send_nullfunc(data, mac, vif, 1);
1747}
1748
1749
1750static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
1751 struct ieee80211_vif *vif)
1752{
1753 struct mac80211_hwsim_data *data = dat;
1754 hwsim_send_nullfunc(data, mac, vif, 0);
1755}
1756
1757
1758static int hwsim_fops_ps_read(void *dat, u64 *val)
1759{
1760 struct mac80211_hwsim_data *data = dat;
1761 *val = data->ps;
1762 return 0;
1763}
1764
1765static int hwsim_fops_ps_write(void *dat, u64 val)
1766{
1767 struct mac80211_hwsim_data *data = dat;
1768 enum ps_mode old_ps;
1769
1770 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
1771 val != PS_MANUAL_POLL)
1772 return -EINVAL;
1773
1774 old_ps = data->ps;
1775 data->ps = val;
1776
1777 if (val == PS_MANUAL_POLL) {
1778 ieee80211_iterate_active_interfaces(data->hw,
8b2c9824 1779 IEEE80211_IFACE_ITER_NORMAL,
fc6971d4
JM		 1780 hwsim_send_ps_poll, data);
1781 data->ps_poll_pending = true;
1782 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
1783 ieee80211_iterate_active_interfaces(data->hw,
8b2c9824 1784 IEEE80211_IFACE_ITER_NORMAL,
fc6971d4
JM		 1785 hwsim_send_nullfunc_ps,
1786 data);
1787 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
1788 ieee80211_iterate_active_interfaces(data->hw,
8b2c9824 1789 IEEE80211_IFACE_ITER_NORMAL,
fc6971d4
JM		 1790 hwsim_send_nullfunc_no_ps,
1791 data);
1792 }
1793
1794 return 0;
1795}
1796
1797DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
1798 "%llu\n");
1799
bba05e3d
JD		 1800static int hwsim_write_simulate_radar(void *dat, u64 val)
1801{
1802 struct mac80211_hwsim_data *data = dat;
1803
1804 ieee80211_radar_detected(data->hw);
1805
1806 return 0;
1807}
1808
1809DEFINE_SIMPLE_ATTRIBUTE(hwsim_simulate_radar, NULL,
1810 hwsim_write_simulate_radar, "%llu\n");
fc6971d4 1811
73606d00
DW		 1812static int hwsim_fops_group_read(void *dat, u64 *val)
1813{
1814 struct mac80211_hwsim_data *data = dat;
1815 *val = data->group;
1816 return 0;
1817}
1818
1819static int hwsim_fops_group_write(void *dat, u64 val)
1820{
1821 struct mac80211_hwsim_data *data = dat;
1822 data->group = val;
1823 return 0;
1824}
1825
1826DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
1827 hwsim_fops_group_read, hwsim_fops_group_write,
1828 "%llx\n");
1829
f483ad25 1830static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(
7882513b
JL		 1831 struct mac_address *addr)
1832{
1833 struct mac80211_hwsim_data *data;
1834 bool _found = false;
1835
1836 spin_lock_bh(&hwsim_radio_lock);
1837 list_for_each_entry(data, &hwsim_radios, list) {
1838 if (memcmp(data->addresses[1].addr, addr,
1839 sizeof(struct mac_address)) == 0) {
1840 _found = true;
1841 break;
1842 }
1843 }
1844 spin_unlock_bh(&hwsim_radio_lock);
1845
1846 if (!_found)
1847 return NULL;
1848
1849 return data;
1850}
1851
1852static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
1853 struct genl_info *info)
1854{
1855
1856 struct ieee80211_hdr *hdr;
1857 struct mac80211_hwsim_data *data2;
1858 struct ieee80211_tx_info *txi;
1859 struct hwsim_tx_rate *tx_attempts;
d0f718c1 1860 unsigned long ret_skb_ptr;
7882513b
JL		 1861 struct sk_buff *skb, *tmp;
1862 struct mac_address *src;
1863 unsigned int hwsim_flags;
1864
1865 int i;
1866 bool found = false;
1867
1868 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
1869 !info->attrs[HWSIM_ATTR_FLAGS] ||
1870 !info->attrs[HWSIM_ATTR_COOKIE] ||
1871 !info->attrs[HWSIM_ATTR_TX_INFO])
1872 goto out;
1873
1874 src = (struct mac_address *)nla_data(
1875 info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
1876 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
1877
d0f718c1 1878 ret_skb_ptr = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
7882513b
JL		 1879
1880 data2 = get_hwsim_data_ref_from_addr(src);
1881
1882 if (data2 == NULL)
1883 goto out;
1884
1885 /* look for the skb matching the cookie passed back from user */
1886 skb_queue_walk_safe(&data2->pending, skb, tmp) {
d0f718c1 1887 if ((unsigned long)skb == ret_skb_ptr) {
7882513b
JL		 1888 skb_unlink(skb, &data2->pending);
1889 found = true;
1890 break;
1891 }
1892 }
1893
1894 /* not found */
1895 if (!found)
1896 goto out;
1897
1898 /* Tx info received because the frame was broadcasted on user space,
1899 so we get all the necessary info: tx attempts and skb control buff */
1900
1901 tx_attempts = (struct hwsim_tx_rate *)nla_data(
1902 info->attrs[HWSIM_ATTR_TX_INFO]);
1903
1904 /* now send back TX status */
1905 txi = IEEE80211_SKB_CB(skb);
1906
7882513b
JL		 1907 ieee80211_tx_info_clear_status(txi);
1908
1909 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
1910 txi->status.rates[i].idx = tx_attempts[i].idx;
1911 txi->status.rates[i].count = tx_attempts[i].count;
1912 /*txi->status.rates[i].flags = 0;*/
1913 }
1914
1915 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
1916
1917 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
1918 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
1919 if (skb->len >= 16) {
1920 hdr = (struct ieee80211_hdr *) skb->data;
e8261171
JB		 1921 mac80211_hwsim_monitor_ack(txi->rate_driver_data[0],
1922 hdr->addr2);
7882513b 1923 }
06cf5c4c 1924 txi->flags |= IEEE80211_TX_STAT_ACK;
7882513b
JL		 1925 }
1926 ieee80211_tx_status_irqsafe(data2->hw, skb);
1927 return 0;
1928out:
1929 return -EINVAL;
1930
1931}
1932
1933static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
1934 struct genl_info *info)
1935{
1936
e8261171 1937 struct mac80211_hwsim_data *data2;
7882513b
JL		 1938 struct ieee80211_rx_status rx_status;
1939 struct mac_address *dst;
1940 int frame_data_len;
1941 char *frame_data;
1942 struct sk_buff *skb = NULL;
1943
1944 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
e8261171
JB		 1945 !info->attrs[HWSIM_ATTR_FRAME] ||
1946 !info->attrs[HWSIM_ATTR_RX_RATE] ||
1947 !info->attrs[HWSIM_ATTR_SIGNAL])
7882513b
JL		 1948 goto out;
1949
1950 dst = (struct mac_address *)nla_data(
1951 info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
1952
1953 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
1954 frame_data = (char *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
1955
1956 /* Allocate new skb here */
1957 skb = alloc_skb(frame_data_len, GFP_KERNEL);
1958 if (skb == NULL)
1959 goto err;
1960
1961 if (frame_data_len <= IEEE80211_MAX_DATA_LEN) {
1962 /* Copy the data */
1963 memcpy(skb_put(skb, frame_data_len), frame_data,
1964 frame_data_len);
1965 } else
1966 goto err;
1967
1968 data2 = get_hwsim_data_ref_from_addr(dst);
1969
1970 if (data2 == NULL)
1971 goto out;
1972
1973 /* check if radio is configured properly */
1974
e8261171 1975 if (data2->idle || !data2->started)
7882513b
JL		 1976 goto out;
1977
1978 /*A frame is received from user space*/
1979 memset(&rx_status, 0, sizeof(rx_status));
1980 rx_status.freq = data2->channel->center_freq;
1981 rx_status.band = data2->channel->band;
1982 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
1983 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
1984
1985 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
1986 ieee80211_rx_irqsafe(data2->hw, skb);
1987
1988 return 0;
1989err:
c393862f 1990 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 1991 goto out;
1992out:
1993 dev_kfree_skb(skb);
1994 return -EINVAL;
1995}
1996
1997static int hwsim_register_received_nl(struct sk_buff *skb_2,
1998 struct genl_info *info)
1999{
2000 if (info == NULL)
2001 goto out;
2002
15e47304 2003 wmediumd_portid = info->snd_portid;
7882513b
JL		 2004
2005 printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
15e47304 2006 "switching to wmediumd mode with pid %d\n", info->snd_portid);
7882513b
JL		 2007
2008 return 0;
2009out:
c393862f 2010 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 2011 return -EINVAL;
2012}
2013
2014/* Generic Netlink operations array */
4534de83 2015static const struct genl_ops hwsim_ops[] = {
7882513b
JL		 2016 {
2017 .cmd = HWSIM_CMD_REGISTER,
2018 .policy = hwsim_genl_policy,
2019 .doit = hwsim_register_received_nl,
2020 .flags = GENL_ADMIN_PERM,
2021 },
2022 {
2023 .cmd = HWSIM_CMD_FRAME,
2024 .policy = hwsim_genl_policy,
2025 .doit = hwsim_cloned_frame_received_nl,
2026 },
2027 {
2028 .cmd = HWSIM_CMD_TX_INFO_FRAME,
2029 .policy = hwsim_genl_policy,
2030 .doit = hwsim_tx_info_frame_received_nl,
2031 },
2032};
2033
2034static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
2035 unsigned long state,
2036 void *_notify)
2037{
2038 struct netlink_notify *notify = _notify;
2039
2040 if (state != NETLINK_URELEASE)
2041 return NOTIFY_DONE;
2042
15e47304 2043 if (notify->portid == wmediumd_portid) {
7882513b
JL		 2044 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
2045 " socket, switching to perfect channel medium\n");
15e47304 2046 wmediumd_portid = 0;
7882513b
JL		 2047 }
2048 return NOTIFY_DONE;
2049
2050}
2051
2052static struct notifier_block hwsim_netlink_notifier = {
2053 .notifier_call = mac80211_hwsim_netlink_notify,
2054};
2055
2056static int hwsim_init_netlink(void)
2057{
2058 int rc;
e8261171
JB		 2059
2060 /* userspace test API hasn't been adjusted for multi-channel */
2061 if (channels > 1)
2062 return 0;
2063
7882513b
JL		 2064 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
2065
c53ed742 2066 rc = genl_register_family_with_ops(&hwsim_genl_family, hwsim_ops);
7882513b
JL		 2067 if (rc)
2068 goto failure;
2069
2070 rc = netlink_register_notifier(&hwsim_netlink_notifier);
2071 if (rc)
2072 goto failure;
2073
2074 return 0;
2075
2076failure:
c393862f 2077 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 2078 return -EINVAL;
2079}
2080
2081static void hwsim_exit_netlink(void)
2082{
e8261171
JB		 2083 /* userspace test API hasn't been adjusted for multi-channel */
2084 if (channels > 1)
2085 return;
2086
7882513b
JL		 2087 /* unregister the notifier */
2088 netlink_unregister_notifier(&hwsim_netlink_notifier);
2089 /* unregister the family */
cf7a6b2d 2090 genl_unregister_family(&hwsim_genl_family);
7882513b
JL		 2091}
2092
1ae2fc25
JB		 2093static const struct ieee80211_iface_limit hwsim_if_limits[] = {
2094 { .max = 1, .types = BIT(NL80211_IFTYPE_ADHOC) },
2095 { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) |
2096 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2097#ifdef CONFIG_MAC80211_MESH
2098 BIT(NL80211_IFTYPE_MESH_POINT) |
2099#endif
2100 BIT(NL80211_IFTYPE_AP) |
2101 BIT(NL80211_IFTYPE_P2P_GO) },
8b3d1cc2 2102 { .max = 1, .types = BIT(NL80211_IFTYPE_P2P_DEVICE) },
1ae2fc25
JB		 2103};
2104
bba05e3d
JD		 2105static const struct ieee80211_iface_limit hwsim_if_dfs_limits[] = {
2106 { .max = 8, .types = BIT(NL80211_IFTYPE_AP) },
2107};
2108
38ed5048 2109static const struct ieee80211_iface_combination hwsim_if_comb[] = {
bba05e3d
JD		 2110 {
2111 .limits = hwsim_if_limits,
2112 .n_limits = ARRAY_SIZE(hwsim_if_limits),
2113 .max_interfaces = 2048,
2114 .num_different_channels = 1,
2115 },
2116 {
2117 .limits = hwsim_if_dfs_limits,
2118 .n_limits = ARRAY_SIZE(hwsim_if_dfs_limits),
2119 .max_interfaces = 8,
2120 .num_different_channels = 1,
2121 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
2122 BIT(NL80211_CHAN_WIDTH_20) |
2123 BIT(NL80211_CHAN_WIDTH_40) |
2124 BIT(NL80211_CHAN_WIDTH_80) |
2125 BIT(NL80211_CHAN_WIDTH_160),
2126 }
1ae2fc25
JB		 2127};
2128
f39c2bfa 2129static int __init mac80211_hwsim_create_radio(int idx)
acc1e7a3 2130{
f39c2bfa 2131 int err;
acc1e7a3
JM		 2132 u8 addr[ETH_ALEN];
2133 struct mac80211_hwsim_data *data;
2134 struct ieee80211_hw *hw;
22cad735 2135 enum ieee80211_band band;
f39c2bfa
JB		 2136 const struct ieee80211_ops *ops = &mac80211_hwsim_ops;
2137
2138 if (channels > 1)
2139 ops = &mac80211_hwsim_mchan_ops;
2140 hw = ieee80211_alloc_hw(sizeof(*data), ops);
2141 if (!hw) {
2142 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw failed\n");
2143 err = -ENOMEM;
2144 goto failed;
2145 }
2146 data = hw->priv;
2147 data->hw = hw;
2148
2149 data->dev = device_create(hwsim_class, NULL, 0, hw, "hwsim%d", idx);
2150 if (IS_ERR(data->dev)) {
2151 printk(KERN_DEBUG
2152 "mac80211_hwsim: device_create failed (%ld)\n",
2153 PTR_ERR(data->dev));
2154 err = -ENOMEM;
2155 goto failed_drvdata;
2156 }
2157 data->dev->driver = &mac80211_hwsim_driver.driver;
2158 err = device_bind_driver(data->dev);
2159 if (err != 0) {
2160 printk(KERN_DEBUG "mac80211_hwsim: device_bind_driver failed (%d)\n",
2161 err);
2162 goto failed_hw;
2163 }
2164
2165 skb_queue_head_init(&data->pending);
2166
2167 SET_IEEE80211_DEV(hw, data->dev);
2168 memset(addr, 0, ETH_ALEN);
2169 addr[0] = 0x02;
2170 addr[3] = idx >> 8;
2171 addr[4] = idx;
2172 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
2173 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
2174 data->addresses[1].addr[0] |= 0x40;
2175 hw->wiphy->n_addresses = 2;
2176 hw->wiphy->addresses = data->addresses;
2177
2178 data->channels = channels;
2179
2180 if (data->channels > 1) {
2181 hw->wiphy->max_scan_ssids = 255;
2182 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
2183 hw->wiphy->max_remain_on_channel_duration = 1000;
2184 /* For channels > 1 DFS is not allowed */
2185 hw->wiphy->n_iface_combinations = 1;
2186 hw->wiphy->iface_combinations = &data->if_combination;
2187 data->if_combination = hwsim_if_comb[0];
2188 data->if_combination.num_different_channels = data->channels;
2189 } else {
2190 hw->wiphy->iface_combinations = hwsim_if_comb;
2191 hw->wiphy->n_iface_combinations = ARRAY_SIZE(hwsim_if_comb);
2192 }
2193
2194 INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
2195 INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
2196
2197 hw->queues = 5;
2198 hw->offchannel_tx_hw_queue = 4;
2199 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2200 BIT(NL80211_IFTYPE_AP) |
2201 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2202 BIT(NL80211_IFTYPE_P2P_GO) |
2203 BIT(NL80211_IFTYPE_ADHOC) |
2204 BIT(NL80211_IFTYPE_MESH_POINT) |
2205 BIT(NL80211_IFTYPE_P2P_DEVICE);
2206
2207 hw->flags = IEEE80211_HW_MFP_CAPABLE |
2208 IEEE80211_HW_SIGNAL_DBM |
2209 IEEE80211_HW_SUPPORTS_STATIC_SMPS |
2210 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
2211 IEEE80211_HW_AMPDU_AGGREGATION |
2212 IEEE80211_HW_WANT_MONITOR_VIF |
2213 IEEE80211_HW_QUEUE_CONTROL |
2214 IEEE80211_HW_SUPPORTS_HT_CCK_RATES;
2215 if (rctbl)
2216 hw->flags |= IEEE80211_HW_SUPPORTS_RC_TABLE;
2217
2218 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2219 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
2220 WIPHY_FLAG_AP_UAPSD;
2221 hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR;
2222
2223 /* ask mac80211 to reserve space for magic */
2224 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
2225 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
2226 hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
2227
2228 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
2229 sizeof(hwsim_channels_2ghz));
2230 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
2231 sizeof(hwsim_channels_5ghz));
2232 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
2233
2234 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
2235 struct ieee80211_supported_band *sband = &data->bands[band];
2236 switch (band) {
2237 case IEEE80211_BAND_2GHZ:
2238 sband->channels = data->channels_2ghz;
2239 sband->n_channels = ARRAY_SIZE(hwsim_channels_2ghz);
2240 sband->bitrates = data->rates;
2241 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
2242 break;
2243 case IEEE80211_BAND_5GHZ:
2244 sband->channels = data->channels_5ghz;
2245 sband->n_channels = ARRAY_SIZE(hwsim_channels_5ghz);
2246 sband->bitrates = data->rates + 4;
2247 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
2248 break;
2249 default:
2250 continue;
2251 }
2252
2253 sband->ht_cap.ht_supported = true;
2254 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
2255 IEEE80211_HT_CAP_GRN_FLD |
2256 IEEE80211_HT_CAP_SGI_40 |
2257 IEEE80211_HT_CAP_DSSSCCK40;
2258 sband->ht_cap.ampdu_factor = 0x3;
2259 sband->ht_cap.ampdu_density = 0x6;
2260 memset(&sband->ht_cap.mcs, 0,
2261 sizeof(sband->ht_cap.mcs));
2262 sband->ht_cap.mcs.rx_mask[0] = 0xff;
2263 sband->ht_cap.mcs.rx_mask[1] = 0xff;
2264 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2265
2266 hw->wiphy->bands[band] = sband;
2267
2268 sband->vht_cap.vht_supported = true;
2269 sband->vht_cap.cap =
2270 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
2271 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
2272 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ |
2273 IEEE80211_VHT_CAP_RXLDPC |
2274 IEEE80211_VHT_CAP_SHORT_GI_80 |
2275 IEEE80211_VHT_CAP_SHORT_GI_160 |
2276 IEEE80211_VHT_CAP_TXSTBC |
2277 IEEE80211_VHT_CAP_RXSTBC_1 |
2278 IEEE80211_VHT_CAP_RXSTBC_2 |
2279 IEEE80211_VHT_CAP_RXSTBC_3 |
2280 IEEE80211_VHT_CAP_RXSTBC_4 |
2281 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
2282 sband->vht_cap.vht_mcs.rx_mcs_map =
2283 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_8 << 0 |
2284 IEEE80211_VHT_MCS_SUPPORT_0_8 << 2 |
2285 IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
2286 IEEE80211_VHT_MCS_SUPPORT_0_8 << 6 |
2287 IEEE80211_VHT_MCS_SUPPORT_0_8 << 8 |
2288 IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
2289 IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
2290 IEEE80211_VHT_MCS_SUPPORT_0_8 << 14);
2291 sband->vht_cap.vht_mcs.tx_mcs_map =
2292 sband->vht_cap.vht_mcs.rx_mcs_map;
2293 }
2294
2295 /* By default all radios belong to the first group */
2296 data->group = 1;
2297 mutex_init(&data->mutex);
2298
2299 /* Enable frame retransmissions for lossy channels */
2300 hw->max_rates = 4;
2301 hw->max_rate_tries = 11;
2302
2303 err = ieee80211_register_hw(hw);
2304 if (err < 0) {
2305 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_register_hw failed (%d)\n",
2306 err);
2307 goto failed_hw;
2308 }
2309
2310 wiphy_debug(hw->wiphy, "hwaddr %pM registered\n", hw->wiphy->perm_addr);
2311
2312 data->debugfs = debugfs_create_dir("hwsim", hw->wiphy->debugfsdir);
2313 debugfs_create_file("ps", 0666, data->debugfs, data, &hwsim_fops_ps);
2314 debugfs_create_file("group", 0666, data->debugfs, data,
2315 &hwsim_fops_group);
2316 if (data->channels == 1)
2317 debugfs_create_file("dfs_simulate_radar", 0222,
2318 data->debugfs,
2319 data, &hwsim_simulate_radar);
2320
2321 tasklet_hrtimer_init(&data->beacon_timer,
2322 mac80211_hwsim_beacon,
2323 CLOCK_MONOTONIC_RAW, HRTIMER_MODE_ABS);
2324
2325 spin_lock_bh(&hwsim_radio_lock);
2326 list_add_tail(&data->list, &hwsim_radios);
2327 spin_unlock_bh(&hwsim_radio_lock);
2328
2329 return 0;
2330
2331failed_hw:
2332 device_unregister(data->dev);
2333failed_drvdata:
2334 ieee80211_free_hw(hw);
2335failed:
2336 return err;
2337}
2338
2339static int __init init_mac80211_hwsim(void)
2340{
2341 int i, err;
acc1e7a3 2342
0e057d73 2343 if (radios < 1 || radios > 100)
acc1e7a3
JM		 2344 return -EINVAL;
2345
e8261171
JB		 2346 if (channels < 1)
2347 return -EINVAL;
2348
38ed5048
JB		 2349 mac80211_hwsim_mchan_ops = mac80211_hwsim_ops;
2350 mac80211_hwsim_mchan_ops.hw_scan = mac80211_hwsim_hw_scan;
2351 mac80211_hwsim_mchan_ops.cancel_hw_scan = mac80211_hwsim_cancel_hw_scan;
2352 mac80211_hwsim_mchan_ops.sw_scan_start = NULL;
2353 mac80211_hwsim_mchan_ops.sw_scan_complete = NULL;
2354 mac80211_hwsim_mchan_ops.remain_on_channel = mac80211_hwsim_roc;
2355 mac80211_hwsim_mchan_ops.cancel_remain_on_channel = mac80211_hwsim_croc;
2356 mac80211_hwsim_mchan_ops.add_chanctx = mac80211_hwsim_add_chanctx;
2357 mac80211_hwsim_mchan_ops.remove_chanctx = mac80211_hwsim_remove_chanctx;
2358 mac80211_hwsim_mchan_ops.change_chanctx = mac80211_hwsim_change_chanctx;
2359 mac80211_hwsim_mchan_ops.assign_vif_chanctx =
2360 mac80211_hwsim_assign_vif_chanctx;
2361 mac80211_hwsim_mchan_ops.unassign_vif_chanctx =
2362 mac80211_hwsim_unassign_vif_chanctx;
69068036 2363
0e057d73
JB		 2364 spin_lock_init(&hwsim_radio_lock);
2365 INIT_LIST_HEAD(&hwsim_radios);
acc1e7a3 2366
c07fe5ae 2367 err = platform_driver_register(&mac80211_hwsim_driver);
9ea92774
MP		 2368 if (err)
2369 return err;
2370
acc1e7a3 2371 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
9ea92774
MP		 2372 if (IS_ERR(hwsim_class)) {
2373 err = PTR_ERR(hwsim_class);
f39c2bfa 2374 goto out_unregister_driver;
9ea92774 2375 }
acc1e7a3 2376
0e057d73 2377 for (i = 0; i < radios; i++) {
f39c2bfa
JB		 2378 err = mac80211_hwsim_create_radio(i);
2379 if (err)
2380 goto out_free_radios;
acc1e7a3
JM		 2381 }
2382
2383 hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
bcdd8220
WY		 2384 if (hwsim_mon == NULL) {
2385 err = -ENOMEM;
f39c2bfa 2386 goto out_free_radios;
bcdd8220 2387 }
acc1e7a3 2388
7882513b 2389 rtnl_lock();
7882513b 2390 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
f39c2bfa
JB		 2391 if (err < 0) {
2392 rtnl_unlock();
2393 goto out_free_radios;
2394 }
7882513b
JL		 2395
2396 err = register_netdevice(hwsim_mon);
f39c2bfa
JB		 2397 if (err < 0) {
2398 rtnl_unlock();
2399 goto out_free_mon;
2400 }
7882513b
JL		 2401 rtnl_unlock();
2402
2403 err = hwsim_init_netlink();
2404 if (err < 0)
f39c2bfa 2405 goto out_free_mon;
7882513b 2406
acc1e7a3
JM		 2407 return 0;
2408
f39c2bfa 2409out_free_mon:
acc1e7a3 2410 free_netdev(hwsim_mon);
f39c2bfa 2411out_free_radios:
3a33cc10 2412 mac80211_hwsim_free();
f39c2bfa 2413out_unregister_driver:
c07fe5ae 2414 platform_driver_unregister(&mac80211_hwsim_driver);
acc1e7a3
JM		 2415 return err;
2416}
f8fffc7e 2417module_init(init_mac80211_hwsim);
acc1e7a3
JM		 2418
2419static void __exit exit_mac80211_hwsim(void)
2420{
0e057d73 2421 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
acc1e7a3 2422
7882513b
JL		 2423 hwsim_exit_netlink();
2424
acc1e7a3 2425 mac80211_hwsim_free();
5d416351 2426 unregister_netdev(hwsim_mon);
c07fe5ae 2427 platform_driver_unregister(&mac80211_hwsim_driver);
acc1e7a3 2428}
acc1e7a3 2429module_exit(exit_mac80211_hwsim);
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