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mac80211_hwsim: assign index from separate counter
[deliverable/linux.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;
2d68992b 220static int hwsim_radio_idx;
0e057d73 221
acc1e7a3 222struct mac80211_hwsim_data {
0e057d73
JB		 223 struct list_head list;
224 struct ieee80211_hw *hw;
acc1e7a3 225 struct device *dev;
1b083ea4 226 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
22cad735
LR		 227 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
228 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
acc1e7a3 229 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
38ed5048 230 struct ieee80211_iface_combination if_combination;
acc1e7a3 231
ef15aac6 232 struct mac_address addresses[2];
38ed5048 233 int channels;
ef15aac6 234
e8261171
JB		 235 struct ieee80211_channel *tmp_chan;
236 struct delayed_work roc_done;
237 struct delayed_work hw_scan;
238 struct cfg80211_scan_request *hw_scan_request;
239 struct ieee80211_vif *hw_scan_vif;
240 int scan_chan_idx;
241
acc1e7a3 242 struct ieee80211_channel *channel;
01e59e46 243 u64 beacon_int /* beacon interval in us */;
acc1e7a3 244 unsigned int rx_filter;
f74cb0f7
LR		 245 bool started, idle, scanning;
246 struct mutex mutex;
01e59e46 247 struct tasklet_hrtimer beacon_timer;
fc6971d4
JM		 248 enum ps_mode {
249 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
250 } ps;
251 bool ps_poll_pending;
252 struct dentry *debugfs;
73606d00 253
7882513b 254 struct sk_buff_head pending; /* packets pending */
73606d00
DW		 255 /*
256 * Only radios in the same group can communicate together (the
257 * channel has to match too). Each bit represents a group. A
258 * radio can be in more then one group.
259 */
260 u64 group;
bdd7bd16
BG		 261
262 int power_level;
2f40b940
JC		 263
264 /* difference between this hw's clock and the real clock, in usecs */
45034bfb 265 s64 tsf_offset;
c51f8783 266 s64 bcn_delta;
b66851c3
TP		 267 /* absolute beacon transmission time. Used to cover up "tx" delay. */
268 u64 abs_bcn_ts;
acc1e7a3
JM		 269};
270
271
272struct hwsim_radiotap_hdr {
273 struct ieee80211_radiotap_header hdr;
2f40b940 274 __le64 rt_tsft;
acc1e7a3
JM		 275 u8 rt_flags;
276 u8 rt_rate;
277 __le16 rt_channel;
278 __le16 rt_chbitmask;
ba2d3587 279} __packed;
acc1e7a3 280
76a56eb3
JM		 281struct hwsim_radiotap_ack_hdr {
282 struct ieee80211_radiotap_header hdr;
283 u8 rt_flags;
284 u8 pad;
285 __le16 rt_channel;
286 __le16 rt_chbitmask;
287} __packed;
288
7882513b
JL		 289/* MAC80211_HWSIM netlinf family */
290static struct genl_family hwsim_genl_family = {
291 .id = GENL_ID_GENERATE,
292 .hdrsize = 0,
293 .name = "MAC80211_HWSIM",
294 .version = 1,
295 .maxattr = HWSIM_ATTR_MAX,
296};
297
298/* MAC80211_HWSIM netlink policy */
299
300static struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
301 [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC,
302 .len = 6*sizeof(u8) },
303 [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC,
304 .len = 6*sizeof(u8) },
305 [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
306 .len = IEEE80211_MAX_DATA_LEN },
307 [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
308 [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
309 [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
310 [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC,
311 .len = IEEE80211_TX_MAX_RATES*sizeof(
312 struct hwsim_tx_rate)},
313 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
314};
acc1e7a3 315
d0cf9c0d
SH		 316static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
317 struct net_device *dev)
acc1e7a3
JM		 318{
319 /* TODO: allow packet injection */
320 dev_kfree_skb(skb);
6ed10654 321 return NETDEV_TX_OK;
acc1e7a3
JM		 322}
323
b66851c3
TP		 324static inline u64 mac80211_hwsim_get_tsf_raw(void)
325{
326 return ktime_to_us(ktime_get_real());
327}
328
2f40b940
JC		 329static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
330{
b66851c3 331 u64 now = mac80211_hwsim_get_tsf_raw();
2f40b940
JC		 332 return cpu_to_le64(now + data->tsf_offset);
333}
acc1e7a3 334
12ce8ba3 335static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
b66851c3 336 struct ieee80211_vif *vif)
12ce8ba3
JC		 337{
338 struct mac80211_hwsim_data *data = hw->priv;
339 return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
340}
341
342static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
343 struct ieee80211_vif *vif, u64 tsf)
344{
345 struct mac80211_hwsim_data *data = hw->priv;
45034bfb 346 u64 now = mac80211_hwsim_get_tsf(hw, vif);
c51f8783 347 u32 bcn_int = data->beacon_int;
45034bfb
TP		 348 s64 delta = tsf - now;
349
350 data->tsf_offset += delta;
c51f8783
TP		 351 /* adjust after beaconing with new timestamp at old TBTT */
352 data->bcn_delta = do_div(delta, bcn_int);
12ce8ba3
JC		 353}
354
acc1e7a3 355static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
e8261171
JB		 356 struct sk_buff *tx_skb,
357 struct ieee80211_channel *chan)
acc1e7a3
JM		 358{
359 struct mac80211_hwsim_data *data = hw->priv;
360 struct sk_buff *skb;
361 struct hwsim_radiotap_hdr *hdr;
362 u16 flags;
363 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
364 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
365
366 if (!netif_running(hwsim_mon))
367 return;
368
369 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
370 if (skb == NULL)
371 return;
372
373 hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
374 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
375 hdr->hdr.it_pad = 0;
376 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
f248f105
JM		 377 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
378 (1 << IEEE80211_RADIOTAP_RATE) |
2f40b940 379 (1 << IEEE80211_RADIOTAP_TSFT) |
f248f105 380 (1 << IEEE80211_RADIOTAP_CHANNEL));
2f40b940 381 hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
acc1e7a3
JM		 382 hdr->rt_flags = 0;
383 hdr->rt_rate = txrate->bitrate / 5;
e8261171 384 hdr->rt_channel = cpu_to_le16(chan->center_freq);
acc1e7a3
JM		 385 flags = IEEE80211_CHAN_2GHZ;
386 if (txrate->flags & IEEE80211_RATE_ERP_G)
387 flags |= IEEE80211_CHAN_OFDM;
388 else
389 flags |= IEEE80211_CHAN_CCK;
390 hdr->rt_chbitmask = cpu_to_le16(flags);
391
392 skb->dev = hwsim_mon;
393 skb_set_mac_header(skb, 0);
394 skb->ip_summed = CHECKSUM_UNNECESSARY;
395 skb->pkt_type = PACKET_OTHERHOST;
f248f105 396 skb->protocol = htons(ETH_P_802_2);
acc1e7a3
JM		 397 memset(skb->cb, 0, sizeof(skb->cb));
398 netif_rx(skb);
399}
400
401
e8261171
JB		 402static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
403 const u8 *addr)
6c085227 404{
6c085227 405 struct sk_buff *skb;
76a56eb3 406 struct hwsim_radiotap_ack_hdr *hdr;
6c085227
JM		 407 u16 flags;
408 struct ieee80211_hdr *hdr11;
409
410 if (!netif_running(hwsim_mon))
411 return;
412
413 skb = dev_alloc_skb(100);
414 if (skb == NULL)
415 return;
416
76a56eb3 417 hdr = (struct hwsim_radiotap_ack_hdr *) skb_put(skb, sizeof(*hdr));
6c085227
JM		 418 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
419 hdr->hdr.it_pad = 0;
420 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
421 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
422 (1 << IEEE80211_RADIOTAP_CHANNEL));
423 hdr->rt_flags = 0;
76a56eb3 424 hdr->pad = 0;
e8261171 425 hdr->rt_channel = cpu_to_le16(chan->center_freq);
6c085227
JM		 426 flags = IEEE80211_CHAN_2GHZ;
427 hdr->rt_chbitmask = cpu_to_le16(flags);
428
429 hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
430 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
431 IEEE80211_STYPE_ACK);
432 hdr11->duration_id = cpu_to_le16(0);
433 memcpy(hdr11->addr1, addr, ETH_ALEN);
434
435 skb->dev = hwsim_mon;
436 skb_set_mac_header(skb, 0);
437 skb->ip_summed = CHECKSUM_UNNECESSARY;
438 skb->pkt_type = PACKET_OTHERHOST;
439 skb->protocol = htons(ETH_P_802_2);
440 memset(skb->cb, 0, sizeof(skb->cb));
441 netif_rx(skb);
442}
443
444
fc6971d4
JM		 445static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
446 struct sk_buff *skb)
447{
448 switch (data->ps) {
449 case PS_DISABLED:
450 return true;
451 case PS_ENABLED:
452 return false;
453 case PS_AUTO_POLL:
454 /* TODO: accept (some) Beacons by default and other frames only
455 * if pending PS-Poll has been sent */
456 return true;
457 case PS_MANUAL_POLL:
458 /* Allow unicast frames to own address if there is a pending
459 * PS-Poll */
460 if (data->ps_poll_pending &&
461 memcmp(data->hw->wiphy->perm_addr, skb->data + 4,
462 ETH_ALEN) == 0) {
463 data->ps_poll_pending = false;
464 return true;
465 }
466 return false;
467 }
468
469 return true;
470}
471
472
265dc7f0
JM		 473struct mac80211_hwsim_addr_match_data {
474 bool ret;
475 const u8 *addr;
476};
477
478static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
479 struct ieee80211_vif *vif)
480{
481 struct mac80211_hwsim_addr_match_data *md = data;
482 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
483 md->ret = true;
484}
485
486
487static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
488 const u8 *addr)
489{
490 struct mac80211_hwsim_addr_match_data md;
491
492 if (memcmp(addr, data->hw->wiphy->perm_addr, ETH_ALEN) == 0)
493 return true;
494
495 md.ret = false;
496 md.addr = addr;
497 ieee80211_iterate_active_interfaces_atomic(data->hw,
8b2c9824 498 IEEE80211_IFACE_ITER_NORMAL,
265dc7f0
JM		 499 mac80211_hwsim_addr_iter,
500 &md);
501
502 return md.ret;
503}
504
7882513b
JL		 505static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
506 struct sk_buff *my_skb,
15e47304 507 int dst_portid)
7882513b
JL		 508{
509 struct sk_buff *skb;
510 struct mac80211_hwsim_data *data = hw->priv;
511 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
512 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
513 void *msg_head;
514 unsigned int hwsim_flags = 0;
515 int i;
516 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
517
7882513b
JL		 518 if (data->ps != PS_DISABLED)
519 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
520 /* If the queue contains MAX_QUEUE skb's drop some */
521 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
522 /* Droping until WARN_QUEUE level */
523 while (skb_queue_len(&data->pending) >= WARN_QUEUE)
524 skb_dequeue(&data->pending);
525 }
526
58050fce 527 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
7882513b
JL		 528 if (skb == NULL)
529 goto nla_put_failure;
530
531 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
532 HWSIM_CMD_FRAME);
533 if (msg_head == NULL) {
534 printk(KERN_DEBUG "mac80211_hwsim: problem with msg_head\n");
535 goto nla_put_failure;
536 }
537
633c9389
DM		 538 if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
539 sizeof(struct mac_address), data->addresses[1].addr))
540 goto nla_put_failure;
265dc7f0 541
7882513b 542 /* We get the skb->data */
633c9389
DM		 543 if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
544 goto nla_put_failure;
7882513b
JL		 545
546 /* We get the flags for this transmission, and we translate them to
547 wmediumd flags */
548
549 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
550 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
551
552 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
553 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
554
633c9389
DM		 555 if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
556 goto nla_put_failure;
7882513b
JL		 557
558 /* We get the tx control (rate and retries) info*/
559
560 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
561 tx_attempts[i].idx = info->status.rates[i].idx;
562 tx_attempts[i].count = info->status.rates[i].count;
563 }
564
633c9389
DM		 565 if (nla_put(skb, HWSIM_ATTR_TX_INFO,
566 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
567 tx_attempts))
568 goto nla_put_failure;
7882513b
JL		 569
570 /* We create a cookie to identify this skb */
633c9389
DM		 571 if (nla_put_u64(skb, HWSIM_ATTR_COOKIE, (unsigned long) my_skb))
572 goto nla_put_failure;
7882513b
JL		 573
574 genlmsg_end(skb, msg_head);
15e47304 575 genlmsg_unicast(&init_net, skb, dst_portid);
7882513b
JL		 576
577 /* Enqueue the packet */
578 skb_queue_tail(&data->pending, my_skb);
579 return;
580
581nla_put_failure:
c393862f 582 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 583}
584
e8261171
JB		 585static bool hwsim_chans_compat(struct ieee80211_channel *c1,
586 struct ieee80211_channel *c2)
587{
588 if (!c1 || !c2)
589 return false;
590
591 return c1->center_freq == c2->center_freq;
592}
593
594struct tx_iter_data {
595 struct ieee80211_channel *channel;
596 bool receive;
597};
598
599static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
600 struct ieee80211_vif *vif)
601{
602 struct tx_iter_data *data = _data;
603
604 if (!vif->chanctx_conf)
605 return;
606
607 if (!hwsim_chans_compat(data->channel,
4bf88530 608 rcu_dereference(vif->chanctx_conf)->def.chan))
e8261171
JB		 609 return;
610
611 data->receive = true;
612}
613
7882513b 614static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
e8261171
JB		 615 struct sk_buff *skb,
616 struct ieee80211_channel *chan)
acc1e7a3 617{
0e057d73
JB		 618 struct mac80211_hwsim_data *data = hw->priv, *data2;
619 bool ack = false;
e36cfdc9 620 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
acc1e7a3 621 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
e36cfdc9 622 struct ieee80211_rx_status rx_status;
b66851c3 623 u64 now;
acc1e7a3
JM		 624
625 memset(&rx_status, 0, sizeof(rx_status));
f4bda337 626 rx_status.flag |= RX_FLAG_MACTIME_START;
e8261171
JB		 627 rx_status.freq = chan->center_freq;
628 rx_status.band = chan->band;
dad6330d
KB		 629 if (info->control.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) {
630 rx_status.rate_idx =
631 ieee80211_rate_get_vht_mcs(&info->control.rates[0]);
632 rx_status.vht_nss =
633 ieee80211_rate_get_vht_nss(&info->control.rates[0]);
634 rx_status.flag |= RX_FLAG_VHT;
635 } else {
636 rx_status.rate_idx = info->control.rates[0].idx;
637 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
638 rx_status.flag |= RX_FLAG_HT;
639 }
281ed297
JM		 640 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
641 rx_status.flag |= RX_FLAG_40MHZ;
642 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
643 rx_status.flag |= RX_FLAG_SHORT_GI;
4b14c96d 644 /* TODO: simulate real signal strength (and optional packet loss) */
bdd7bd16 645 rx_status.signal = data->power_level - 50;
acc1e7a3 646
fc6971d4
JM		 647 if (data->ps != PS_DISABLED)
648 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
649
90e3012e
JB		 650 /* release the skb's source info */
651 skb_orphan(skb);
c0acf38e 652 skb_dst_drop(skb);
90e3012e
JB		 653 skb->mark = 0;
654 secpath_reset(skb);
655 nf_reset(skb);
656
b66851c3
TP		 657 /*
658 * Get absolute mactime here so all HWs RX at the "same time", and
659 * absolute TX time for beacon mactime so the timestamp matches.
660 * Giving beacons a different mactime than non-beacons looks messy, but
661 * it helps the Toffset be exact and a ~10us mactime discrepancy
662 * probably doesn't really matter.
663 */
664 if (ieee80211_is_beacon(hdr->frame_control) ||
665 ieee80211_is_probe_resp(hdr->frame_control))
666 now = data->abs_bcn_ts;
667 else
668 now = mac80211_hwsim_get_tsf_raw();
669
acc1e7a3 670 /* Copy skb to all enabled radios that are on the current frequency */
0e057d73
JB		 671 spin_lock(&hwsim_radio_lock);
672 list_for_each_entry(data2, &hwsim_radios, list) {
acc1e7a3 673 struct sk_buff *nskb;
e8261171
JB		 674 struct tx_iter_data tx_iter_data = {
675 .receive = false,
676 .channel = chan,
677 };
acc1e7a3 678
0e057d73 679 if (data == data2)
acc1e7a3 680 continue;
0e057d73 681
e8261171
JB		 682 if (!data2->started || (data2->idle && !data2->tmp_chan) ||
683 !hwsim_ps_rx_ok(data2, skb))
acc1e7a3
JM		 684 continue;
685
e8261171
JB		 686 if (!(data->group & data2->group))
687 continue;
688
689 if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
690 !hwsim_chans_compat(chan, data2->channel)) {
691 ieee80211_iterate_active_interfaces_atomic(
8b2c9824
JB		 692 data2->hw, IEEE80211_IFACE_ITER_NORMAL,
693 mac80211_hwsim_tx_iter, &tx_iter_data);
e8261171
JB		 694 if (!tx_iter_data.receive)
695 continue;
696 }
697
90b9e446
JB		 698 /*
699 * reserve some space for our vendor and the normal
700 * radiotap header, since we're copying anyway
701 */
a357d7f9
JB		 702 if (skb->len < PAGE_SIZE && paged_rx) {
703 struct page *page = alloc_page(GFP_ATOMIC);
704
705 if (!page)
706 continue;
707
708 nskb = dev_alloc_skb(128);
709 if (!nskb) {
710 __free_page(page);
711 continue;
712 }
713
714 memcpy(page_address(page), skb->data, skb->len);
715 skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
716 } else {
717 nskb = skb_copy(skb, GFP_ATOMIC);
718 if (!nskb)
719 continue;
720 }
acc1e7a3 721
265dc7f0 722 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
0e057d73 723 ack = true;
f483ad25 724
b66851c3 725 rx_status.mactime = now + data2->tsf_offset;
90b9e446
JB		 726#if 0
727 /*
728 * Don't enable this code by default as the OUI 00:00:00
729 * is registered to Xerox so we shouldn't use it here, it
730 * might find its way into pcap files.
731 * Note that this code requires the headroom in the SKB
732 * that was allocated earlier.
733 */
734 rx_status.vendor_radiotap_oui[0] = 0x00;
735 rx_status.vendor_radiotap_oui[1] = 0x00;
736 rx_status.vendor_radiotap_oui[2] = 0x00;
737 rx_status.vendor_radiotap_subns = 127;
738 /*
739 * Radiotap vendor namespaces can (and should) also be
740 * split into fields by using the standard radiotap
741 * presence bitmap mechanism. Use just BIT(0) here for
742 * the presence bitmap.
743 */
744 rx_status.vendor_radiotap_bitmap = BIT(0);
745 /* We have 8 bytes of (dummy) data */
746 rx_status.vendor_radiotap_len = 8;
747 /* For testing, also require it to be aligned */
748 rx_status.vendor_radiotap_align = 8;
749 /* push the data */
750 memcpy(skb_push(nskb, 8), "ABCDEFGH", 8);
751#endif
752
f1d58c25
JB		 753 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
754 ieee80211_rx_irqsafe(data2->hw, nskb);
acc1e7a3 755 }
0e057d73 756 spin_unlock(&hwsim_radio_lock);
acc1e7a3 757
e36cfdc9
JM		 758 return ack;
759}
760
36323f81
TH		 761static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
762 struct ieee80211_tx_control *control,
763 struct sk_buff *skb)
e36cfdc9 764{
e8261171
JB		 765 struct mac80211_hwsim_data *data = hw->priv;
766 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
767 struct ieee80211_chanctx_conf *chanctx_conf;
768 struct ieee80211_channel *channel;
0e057d73 769 bool ack;
15e47304 770 u32 _portid;
e36cfdc9 771
e8261171 772 if (WARN_ON(skb->len < 10)) {
e36cfdc9 773 /* Should not happen; just a sanity check for addr1 use */
fe0f3cd2 774 ieee80211_free_txskb(hw, skb);
7bb45683 775 return;
e36cfdc9
JM		 776 }
777
38ed5048 778 if (data->channels == 1) {
e8261171
JB		 779 channel = data->channel;
780 } else if (txi->hw_queue == 4) {
781 channel = data->tmp_chan;
782 } else {
783 chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf);
784 if (chanctx_conf)
4bf88530 785 channel = chanctx_conf->def.chan;
e8261171
JB		 786 else
787 channel = NULL;
788 }
789
790 if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
fe0f3cd2 791 ieee80211_free_txskb(hw, skb);
e8261171
JB		 792 return;
793 }
794
795 if (data->idle && !data->tmp_chan) {
796 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
fe0f3cd2 797 ieee80211_free_txskb(hw, skb);
e8261171
JB		 798 return;
799 }
800
801 if (txi->control.vif)
802 hwsim_check_magic(txi->control.vif);
803 if (control->sta)
804 hwsim_check_sta_magic(control->sta);
805
81338410 806 if (hw->flags & IEEE80211_HW_SUPPORTS_RC_TABLE)
1eb32179
KB		 807 ieee80211_get_tx_rates(txi->control.vif, control->sta, skb,
808 txi->control.rates,
809 ARRAY_SIZE(txi->control.rates));
e8261171 810
1eb32179 811 txi->rate_driver_data[0] = channel;
e8261171
JB		 812 mac80211_hwsim_monitor_rx(hw, skb, channel);
813
7882513b 814 /* wmediumd mode check */
15e47304 815 _portid = ACCESS_ONCE(wmediumd_portid);
7882513b 816
15e47304
EB		 817 if (_portid)
818 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
7882513b
JL		 819
820 /* NO wmediumd detected, perfect medium simulation */
e8261171 821 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
7882513b 822
6c085227
JM		 823 if (ack && skb->len >= 16) {
824 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
e8261171 825 mac80211_hwsim_monitor_ack(channel, hdr->addr2);
6c085227 826 }
e36cfdc9 827
e6a9854b 828 ieee80211_tx_info_clear_status(txi);
2a4ffa4c
JC		 829
830 /* frame was transmitted at most favorable rate at first attempt */
831 txi->control.rates[0].count = 1;
832 txi->control.rates[1].idx = -1;
833
e6a9854b
JB		 834 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
835 txi->flags |= IEEE80211_TX_STAT_ACK;
acc1e7a3 836 ieee80211_tx_status_irqsafe(hw, skb);
acc1e7a3
JM		 837}
838
839
840static int mac80211_hwsim_start(struct ieee80211_hw *hw)
841{
842 struct mac80211_hwsim_data *data = hw->priv;
c96c31e4 843 wiphy_debug(hw->wiphy, "%s\n", __func__);
3db1cd5c 844 data->started = true;
acc1e7a3
JM		 845 return 0;
846}
847
848
849static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
850{
851 struct mac80211_hwsim_data *data = hw->priv;
3db1cd5c 852 data->started = false;
01e59e46 853 tasklet_hrtimer_cancel(&data->beacon_timer);
c96c31e4 854 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 855}
856
857
858static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
1ed32e4f 859 struct ieee80211_vif *vif)
acc1e7a3 860{
c96c31e4 861 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 862 __func__, ieee80211_vif_type_p2p(vif),
863 vif->addr);
1ed32e4f 864 hwsim_set_magic(vif);
e8261171
JB		 865
866 vif->cab_queue = 0;
867 vif->hw_queue[IEEE80211_AC_VO] = 0;
868 vif->hw_queue[IEEE80211_AC_VI] = 1;
869 vif->hw_queue[IEEE80211_AC_BE] = 2;
870 vif->hw_queue[IEEE80211_AC_BK] = 3;
871
acc1e7a3
JM		 872 return 0;
873}
874
875
c35d0270
JB		 876static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
877 struct ieee80211_vif *vif,
2ca27bcf
JB		 878 enum nl80211_iftype newtype,
879 bool newp2p)
c35d0270 880{
2ca27bcf 881 newtype = ieee80211_iftype_p2p(newtype, newp2p);
c35d0270
JB		 882 wiphy_debug(hw->wiphy,
883 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
2ca27bcf
JB		 884 __func__, ieee80211_vif_type_p2p(vif),
885 newtype, vif->addr);
c35d0270
JB		 886 hwsim_check_magic(vif);
887
3eb92f6a
JB		 888 /*
889 * interface may change from non-AP to AP in
890 * which case this needs to be set up again
891 */
892 vif->cab_queue = 0;
893
c35d0270
JB		 894 return 0;
895}
896
acc1e7a3 897static void mac80211_hwsim_remove_interface(
1ed32e4f 898 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
acc1e7a3 899{
c96c31e4 900 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 901 __func__, ieee80211_vif_type_p2p(vif),
902 vif->addr);
1ed32e4f
JB		 903 hwsim_check_magic(vif);
904 hwsim_clear_magic(vif);
acc1e7a3
JM		 905}
906
e8261171
JB		 907static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
908 struct sk_buff *skb,
909 struct ieee80211_channel *chan)
910{
911 u32 _pid = ACCESS_ONCE(wmediumd_portid);
912
81338410 913 if (hw->flags & IEEE80211_HW_SUPPORTS_RC_TABLE) {
1eb32179
KB		 914 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
915 ieee80211_get_tx_rates(txi->control.vif, NULL, skb,
916 txi->control.rates,
917 ARRAY_SIZE(txi->control.rates));
918 }
919
e8261171
JB		 920 mac80211_hwsim_monitor_rx(hw, skb, chan);
921
922 if (_pid)
923 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
924
925 mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
926 dev_kfree_skb(skb);
927}
acc1e7a3
JM		 928
929static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
930 struct ieee80211_vif *vif)
931{
b66851c3
TP		 932 struct mac80211_hwsim_data *data = arg;
933 struct ieee80211_hw *hw = data->hw;
934 struct ieee80211_tx_info *info;
935 struct ieee80211_rate *txrate;
936 struct ieee80211_mgmt *mgmt;
acc1e7a3 937 struct sk_buff *skb;
acc1e7a3 938
8aa21e6f
JB		 939 hwsim_check_magic(vif);
940
55b39619 941 if (vif->type != NL80211_IFTYPE_AP &&
2b2d7795
JB		 942 vif->type != NL80211_IFTYPE_MESH_POINT &&
943 vif->type != NL80211_IFTYPE_ADHOC)
acc1e7a3
JM		 944 return;
945
946 skb = ieee80211_beacon_get(hw, vif);
947 if (skb == NULL)
948 return;
b66851c3 949 info = IEEE80211_SKB_CB(skb);
81338410 950 if (hw->flags & IEEE80211_HW_SUPPORTS_RC_TABLE)
1eb32179
KB		 951 ieee80211_get_tx_rates(vif, NULL, skb,
952 info->control.rates,
953 ARRAY_SIZE(info->control.rates));
954
b66851c3
TP		 955 txrate = ieee80211_get_tx_rate(hw, info);
956
957 mgmt = (struct ieee80211_mgmt *) skb->data;
958 /* fake header transmission time */
959 data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
960 mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
961 data->tsf_offset +
962 24 * 8 * 10 / txrate->bitrate);
7882513b 963
e8261171 964 mac80211_hwsim_tx_frame(hw, skb,
4bf88530 965 rcu_dereference(vif->chanctx_conf)->def.chan);
acc1e7a3
JM		 966}
967
01e59e46
TP		 968static enum hrtimer_restart
969mac80211_hwsim_beacon(struct hrtimer *timer)
acc1e7a3 970{
01e59e46
TP		 971 struct mac80211_hwsim_data *data =
972 container_of(timer, struct mac80211_hwsim_data,
973 beacon_timer.timer);
974 struct ieee80211_hw *hw = data->hw;
975 u64 bcn_int = data->beacon_int;
976 ktime_t next_bcn;
acc1e7a3 977
4c4c671a 978 if (!data->started)
01e59e46 979 goto out;
acc1e7a3 980
f248f105 981 ieee80211_iterate_active_interfaces_atomic(
8b2c9824 982 hw, IEEE80211_IFACE_ITER_NORMAL,
b66851c3 983 mac80211_hwsim_beacon_tx, data);
acc1e7a3 984
c51f8783
TP		 985 /* beacon at new TBTT + beacon interval */
986 if (data->bcn_delta) {
987 bcn_int -= data->bcn_delta;
988 data->bcn_delta = 0;
989 }
990
01e59e46
TP		 991 next_bcn = ktime_add(hrtimer_get_expires(timer),
992 ns_to_ktime(bcn_int * 1000));
993 tasklet_hrtimer_start(&data->beacon_timer, next_bcn, HRTIMER_MODE_ABS);
994out:
995 return HRTIMER_NORESTART;
acc1e7a3
JM		 996}
997
675a0b04
KB		 998static const char * const hwsim_chanwidths[] = {
999 [NL80211_CHAN_WIDTH_20_NOHT] = "noht",
1000 [NL80211_CHAN_WIDTH_20] = "ht20",
1001 [NL80211_CHAN_WIDTH_40] = "ht40",
1002 [NL80211_CHAN_WIDTH_80] = "vht80",
1003 [NL80211_CHAN_WIDTH_80P80] = "vht80p80",
1004 [NL80211_CHAN_WIDTH_160] = "vht160",
0aaffa9b 1005};
acc1e7a3 1006
e8975581 1007static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
acc1e7a3
JM		 1008{
1009 struct mac80211_hwsim_data *data = hw->priv;
e8975581 1010 struct ieee80211_conf *conf = &hw->conf;
0f78231b
JB		 1011 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
1012 [IEEE80211_SMPS_AUTOMATIC] = "auto",
1013 [IEEE80211_SMPS_OFF] = "off",
1014 [IEEE80211_SMPS_STATIC] = "static",
1015 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
1016 };
1017
675a0b04
KB		 1018 if (conf->chandef.chan)
1019 wiphy_debug(hw->wiphy,
1020 "%s (freq=%d(%d - %d)/%s idle=%d ps=%d smps=%s)\n",
1021 __func__,
1022 conf->chandef.chan->center_freq,
1023 conf->chandef.center_freq1,
1024 conf->chandef.center_freq2,
1025 hwsim_chanwidths[conf->chandef.width],
1026 !!(conf->flags & IEEE80211_CONF_IDLE),
1027 !!(conf->flags & IEEE80211_CONF_PS),
1028 smps_modes[conf->smps_mode]);
1029 else
1030 wiphy_debug(hw->wiphy,
1031 "%s (freq=0 idle=%d ps=%d smps=%s)\n",
1032 __func__,
1033 !!(conf->flags & IEEE80211_CONF_IDLE),
1034 !!(conf->flags & IEEE80211_CONF_PS),
1035 smps_modes[conf->smps_mode]);
acc1e7a3 1036
70541839
JM		 1037 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1038
675a0b04 1039 data->channel = conf->chandef.chan;
e8261171 1040
38ed5048 1041 WARN_ON(data->channel && data->channels > 1);
e8261171 1042
bdd7bd16 1043 data->power_level = conf->power_level;
4c4c671a 1044 if (!data->started || !data->beacon_int)
01e59e46
TP		 1045 tasklet_hrtimer_cancel(&data->beacon_timer);
1046 else if (!hrtimer_is_queued(&data->beacon_timer.timer)) {
c51f8783
TP		 1047 u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
1048 u32 bcn_int = data->beacon_int;
1049 u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1050
01e59e46 1051 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1052 ns_to_ktime(until_tbtt * 1000),
01e59e46
TP		 1053 HRTIMER_MODE_REL);
1054 }
acc1e7a3
JM		 1055
1056 return 0;
1057}
1058
1059
1060static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
1061 unsigned int changed_flags,
3ac64bee 1062 unsigned int *total_flags,u64 multicast)
acc1e7a3
JM		 1063{
1064 struct mac80211_hwsim_data *data = hw->priv;
1065
c96c31e4 1066 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 1067
1068 data->rx_filter = 0;
1069 if (*total_flags & FIF_PROMISC_IN_BSS)
1070 data->rx_filter |= FIF_PROMISC_IN_BSS;
1071 if (*total_flags & FIF_ALLMULTI)
1072 data->rx_filter |= FIF_ALLMULTI;
1073
1074 *total_flags = data->rx_filter;
1075}
1076
0bb861e6
JM		 1077static void mac80211_hwsim_bcn_en_iter(void *data, u8 *mac,
1078 struct ieee80211_vif *vif)
1079{
1080 unsigned int *count = data;
1081 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1082
1083 if (vp->bcn_en)
1084 (*count)++;
1085}
1086
8aa21e6f
JB		 1087static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
1088 struct ieee80211_vif *vif,
1089 struct ieee80211_bss_conf *info,
1090 u32 changed)
1091{
fc6971d4 1092 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
57c4d7b4 1093 struct mac80211_hwsim_data *data = hw->priv;
fc6971d4 1094
8aa21e6f 1095 hwsim_check_magic(vif);
fe63bfa3 1096
0bb861e6
JM		 1097 wiphy_debug(hw->wiphy, "%s(changed=0x%x vif->addr=%pM)\n",
1098 __func__, changed, vif->addr);
fe63bfa3 1099
2d0ddec5 1100 if (changed & BSS_CHANGED_BSSID) {
c96c31e4
JP		 1101 wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
1102 __func__, info->bssid);
2d0ddec5
JB		 1103 memcpy(vp->bssid, info->bssid, ETH_ALEN);
1104 }
1105
fe63bfa3 1106 if (changed & BSS_CHANGED_ASSOC) {
c96c31e4
JP		 1107 wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
1108 info->assoc, info->aid);
fc6971d4
JM		 1109 vp->assoc = info->assoc;
1110 vp->aid = info->aid;
fe63bfa3
JM		 1111 }
1112
57c4d7b4 1113 if (changed & BSS_CHANGED_BEACON_INT) {
c96c31e4 1114 wiphy_debug(hw->wiphy, " BCNINT: %d\n", info->beacon_int);
01e59e46
TP		 1115 data->beacon_int = info->beacon_int * 1024;
1116 }
1117
1118 if (changed & BSS_CHANGED_BEACON_ENABLED) {
1119 wiphy_debug(hw->wiphy, " BCN EN: %d\n", info->enable_beacon);
0bb861e6 1120 vp->bcn_en = info->enable_beacon;
01e59e46
TP		 1121 if (data->started &&
1122 !hrtimer_is_queued(&data->beacon_timer.timer) &&
1123 info->enable_beacon) {
c51f8783
TP		 1124 u64 tsf, until_tbtt;
1125 u32 bcn_int;
01e59e46
TP		 1126 if (WARN_ON(!data->beacon_int))
1127 data->beacon_int = 1000 * 1024;
c51f8783
TP		 1128 tsf = mac80211_hwsim_get_tsf(hw, vif);
1129 bcn_int = data->beacon_int;
1130 until_tbtt = bcn_int - do_div(tsf, bcn_int);
01e59e46 1131 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1132 ns_to_ktime(until_tbtt * 1000),
01e59e46 1133 HRTIMER_MODE_REL);
0bb861e6
JM		 1134 } else if (!info->enable_beacon) {
1135 unsigned int count = 0;
cdb1b805 1136 ieee80211_iterate_active_interfaces_atomic(
0bb861e6
JM		 1137 data->hw, IEEE80211_IFACE_ITER_NORMAL,
1138 mac80211_hwsim_bcn_en_iter, &count);
1139 wiphy_debug(hw->wiphy, " beaconing vifs remaining: %u",
1140 count);
1141 if (count == 0)
1142 tasklet_hrtimer_cancel(&data->beacon_timer);
1143 }
57c4d7b4
JB		 1144 }
1145
fe63bfa3 1146 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
c96c31e4
JP		 1147 wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
1148 info->use_cts_prot);
fe63bfa3
JM		 1149 }
1150
1151 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
c96c31e4
JP		 1152 wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
1153 info->use_short_preamble);
fe63bfa3
JM		 1154 }
1155
1156 if (changed & BSS_CHANGED_ERP_SLOT) {
c96c31e4 1157 wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
fe63bfa3
JM		 1158 }
1159
1160 if (changed & BSS_CHANGED_HT) {
4bf88530
JB		 1161 wiphy_debug(hw->wiphy, " HT: op_mode=0x%x\n",
1162 info->ht_operation_mode);
fe63bfa3
JM		 1163 }
1164
1165 if (changed & BSS_CHANGED_BASIC_RATES) {
c96c31e4
JP		 1166 wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
1167 (unsigned long long) info->basic_rates);
fe63bfa3 1168 }
cbc668a7
JB		 1169
1170 if (changed & BSS_CHANGED_TXPOWER)
1171 wiphy_debug(hw->wiphy, " TX Power: %d dBm\n", info->txpower);
8aa21e6f
JB		 1172}
1173
1d669cbf
JB		 1174static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
1175 struct ieee80211_vif *vif,
1176 struct ieee80211_sta *sta)
1177{
1178 hwsim_check_magic(vif);
1179 hwsim_set_sta_magic(sta);
1180
1181 return 0;
1182}
1183
1184static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
1185 struct ieee80211_vif *vif,
1186 struct ieee80211_sta *sta)
1187{
1188 hwsim_check_magic(vif);
1189 hwsim_clear_sta_magic(sta);
1190
1191 return 0;
1192}
1193
8aa21e6f
JB		 1194static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
1195 struct ieee80211_vif *vif,
17741cdc
JB		 1196 enum sta_notify_cmd cmd,
1197 struct ieee80211_sta *sta)
8aa21e6f
JB		 1198{
1199 hwsim_check_magic(vif);
1d669cbf 1200
81c06523 1201 switch (cmd) {
89fad578
CL		 1202 case STA_NOTIFY_SLEEP:
1203 case STA_NOTIFY_AWAKE:
1204 /* TODO: make good use of these flags */
1205 break;
1d669cbf
JB		 1206 default:
1207 WARN(1, "Invalid sta notify: %d\n", cmd);
1208 break;
81c06523
JB		 1209 }
1210}
1211
1212static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
1213 struct ieee80211_sta *sta,
1214 bool set)
1215{
1216 hwsim_check_sta_magic(sta);
1217 return 0;
8aa21e6f 1218}
acc1e7a3 1219
1e898ff8 1220static int mac80211_hwsim_conf_tx(
8a3a3c85
EP		 1221 struct ieee80211_hw *hw,
1222 struct ieee80211_vif *vif, u16 queue,
1e898ff8
JM		 1223 const struct ieee80211_tx_queue_params *params)
1224{
c96c31e4
JP		 1225 wiphy_debug(hw->wiphy,
1226 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1227 __func__, queue,
1228 params->txop, params->cw_min,
1229 params->cw_max, params->aifs);
1e898ff8
JM		 1230 return 0;
1231}
1232
1289723e
HS		 1233static int mac80211_hwsim_get_survey(
1234 struct ieee80211_hw *hw, int idx,
1235 struct survey_info *survey)
1236{
1237 struct ieee80211_conf *conf = &hw->conf;
1238
c96c31e4 1239 wiphy_debug(hw->wiphy, "%s (idx=%d)\n", __func__, idx);
1289723e
HS		 1240
1241 if (idx != 0)
1242 return -ENOENT;
1243
1244 /* Current channel */
675a0b04 1245 survey->channel = conf->chandef.chan;
1289723e
HS		 1246
1247 /*
1248 * Magically conjured noise level --- this is only ok for simulated hardware.
1249 *
1250 * A real driver which cannot determine the real channel noise MUST NOT
1251 * report any noise, especially not a magically conjured one :-)
1252 */
1253 survey->filled = SURVEY_INFO_NOISE_DBM;
1254 survey->noise = -92;
1255
1256 return 0;
1257}
1258
aff89a9b
JB		 1259#ifdef CONFIG_NL80211_TESTMODE
1260/*
1261 * This section contains example code for using netlink
1262 * attributes with the testmode command in nl80211.
1263 */
1264
1265/* These enums need to be kept in sync with userspace */
1266enum hwsim_testmode_attr {
1267 __HWSIM_TM_ATTR_INVALID = 0,
1268 HWSIM_TM_ATTR_CMD = 1,
1269 HWSIM_TM_ATTR_PS = 2,
1270
1271 /* keep last */
1272 __HWSIM_TM_ATTR_AFTER_LAST,
1273 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1274};
1275
1276enum hwsim_testmode_cmd {
1277 HWSIM_TM_CMD_SET_PS = 0,
1278 HWSIM_TM_CMD_GET_PS = 1,
4d6d0ae2
JB		 1279 HWSIM_TM_CMD_STOP_QUEUES = 2,
1280 HWSIM_TM_CMD_WAKE_QUEUES = 3,
aff89a9b
JB		 1281};
1282
1283static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1284 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1285 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1286};
1287
1288static int hwsim_fops_ps_write(void *dat, u64 val);
1289
5bc38193 1290static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
52981cd7 1291 struct ieee80211_vif *vif,
5bc38193 1292 void *data, int len)
aff89a9b
JB		 1293{
1294 struct mac80211_hwsim_data *hwsim = hw->priv;
1295 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1296 struct sk_buff *skb;
1297 int err, ps;
1298
1299 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
1300 hwsim_testmode_policy);
1301 if (err)
1302 return err;
1303
1304 if (!tb[HWSIM_TM_ATTR_CMD])
1305 return -EINVAL;
1306
1307 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1308 case HWSIM_TM_CMD_SET_PS:
1309 if (!tb[HWSIM_TM_ATTR_PS])
1310 return -EINVAL;
1311 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1312 return hwsim_fops_ps_write(hwsim, ps);
1313 case HWSIM_TM_CMD_GET_PS:
1314 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1315 nla_total_size(sizeof(u32)));
1316 if (!skb)
1317 return -ENOMEM;
633c9389
DM		 1318 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
1319 goto nla_put_failure;
aff89a9b 1320 return cfg80211_testmode_reply(skb);
4d6d0ae2
JB		 1321 case HWSIM_TM_CMD_STOP_QUEUES:
1322 ieee80211_stop_queues(hw);
1323 return 0;
1324 case HWSIM_TM_CMD_WAKE_QUEUES:
1325 ieee80211_wake_queues(hw);
1326 return 0;
aff89a9b
JB		 1327 default:
1328 return -EOPNOTSUPP;
1329 }
1330
1331 nla_put_failure:
1332 kfree_skb(skb);
1333 return -ENOBUFS;
1334}
1335#endif
1336
8b73d13a
JB		 1337static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1338 struct ieee80211_vif *vif,
1339 enum ieee80211_ampdu_mlme_action action,
0b01f030
JB		 1340 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
1341 u8 buf_size)
8b73d13a
JB		 1342{
1343 switch (action) {
1344 case IEEE80211_AMPDU_TX_START:
1345 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1346 break;
18b559d5
JB		 1347 case IEEE80211_AMPDU_TX_STOP_CONT:
1348 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1349 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
8b73d13a
JB		 1350 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1351 break;
1352 case IEEE80211_AMPDU_TX_OPERATIONAL:
1353 break;
1354 case IEEE80211_AMPDU_RX_START:
1355 case IEEE80211_AMPDU_RX_STOP:
1356 break;
1357 default:
1358 return -EOPNOTSUPP;
1359 }
1360
1361 return 0;
1362}
1363
39ecc01d 1364static void mac80211_hwsim_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
a80f7c0b 1365{
7882513b 1366 /* Not implemented, queues only on kernel side */
a80f7c0b
JB		 1367}
1368
e8261171 1369static void hw_scan_work(struct work_struct *work)
69068036 1370{
e8261171
JB		 1371 struct mac80211_hwsim_data *hwsim =
1372 container_of(work, struct mac80211_hwsim_data, hw_scan.work);
1373 struct cfg80211_scan_request *req = hwsim->hw_scan_request;
1374 int dwell, i;
69068036 1375
e8261171
JB		 1376 mutex_lock(&hwsim->mutex);
1377 if (hwsim->scan_chan_idx >= req->n_channels) {
1378 wiphy_debug(hwsim->hw->wiphy, "hw scan complete\n");
1379 ieee80211_scan_completed(hwsim->hw, false);
1380 hwsim->hw_scan_request = NULL;
1381 hwsim->hw_scan_vif = NULL;
1382 hwsim->tmp_chan = NULL;
1383 mutex_unlock(&hwsim->mutex);
1384 return;
1385 }
1386
1387 wiphy_debug(hwsim->hw->wiphy, "hw scan %d MHz\n",
1388 req->channels[hwsim->scan_chan_idx]->center_freq);
1389
1390 hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
8fe02e16 1391 if (hwsim->tmp_chan->flags & IEEE80211_CHAN_NO_IR ||
e8261171
JB		 1392 !req->n_ssids) {
1393 dwell = 120;
1394 } else {
1395 dwell = 30;
1396 /* send probes */
1397 for (i = 0; i < req->n_ssids; i++) {
1398 struct sk_buff *probe;
1399
1400 probe = ieee80211_probereq_get(hwsim->hw,
1401 hwsim->hw_scan_vif,
1402 req->ssids[i].ssid,
1403 req->ssids[i].ssid_len,
b9a9ada1 1404 req->ie_len);
e8261171
JB		 1405 if (!probe)
1406 continue;
b9a9ada1
JB		 1407
1408 if (req->ie_len)
1409 memcpy(skb_put(probe, req->ie_len), req->ie,
1410 req->ie_len);
1411
e8261171
JB		 1412 local_bh_disable();
1413 mac80211_hwsim_tx_frame(hwsim->hw, probe,
1414 hwsim->tmp_chan);
1415 local_bh_enable();
1416 }
1417 }
1418 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
1419 msecs_to_jiffies(dwell));
1420 hwsim->scan_chan_idx++;
1421 mutex_unlock(&hwsim->mutex);
69068036
JB		 1422}
1423
1424static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
a060bbfe 1425 struct ieee80211_vif *vif,
69068036
JB		 1426 struct cfg80211_scan_request *req)
1427{
e8261171 1428 struct mac80211_hwsim_data *hwsim = hw->priv;
69068036 1429
e8261171
JB		 1430 mutex_lock(&hwsim->mutex);
1431 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1432 mutex_unlock(&hwsim->mutex);
1433 return -EBUSY;
1434 }
1435 hwsim->hw_scan_request = req;
1436 hwsim->hw_scan_vif = vif;
1437 hwsim->scan_chan_idx = 0;
1438 mutex_unlock(&hwsim->mutex);
69068036 1439
e8261171 1440 wiphy_debug(hw->wiphy, "hwsim hw_scan request\n");
69068036 1441
e8261171 1442 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
69068036
JB		 1443
1444 return 0;
1445}
1446
e8261171
JB		 1447static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
1448 struct ieee80211_vif *vif)
1449{
1450 struct mac80211_hwsim_data *hwsim = hw->priv;
1451
1452 wiphy_debug(hw->wiphy, "hwsim cancel_hw_scan\n");
1453
1454 cancel_delayed_work_sync(&hwsim->hw_scan);
1455
1456 mutex_lock(&hwsim->mutex);
1457 ieee80211_scan_completed(hwsim->hw, true);
1458 hwsim->tmp_chan = NULL;
1459 hwsim->hw_scan_request = NULL;
1460 hwsim->hw_scan_vif = NULL;
1461 mutex_unlock(&hwsim->mutex);
1462}
1463
f74cb0f7
LR		 1464static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw)
1465{
1466 struct mac80211_hwsim_data *hwsim = hw->priv;
1467
1468 mutex_lock(&hwsim->mutex);
1469
1470 if (hwsim->scanning) {
1471 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
1472 goto out;
1473 }
1474
1475 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
1476 hwsim->scanning = true;
1477
1478out:
1479 mutex_unlock(&hwsim->mutex);
1480}
1481
1482static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw)
1483{
1484 struct mac80211_hwsim_data *hwsim = hw->priv;
1485
1486 mutex_lock(&hwsim->mutex);
1487
1488 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
23ff98fc 1489 hwsim->scanning = false;
f74cb0f7
LR		 1490
1491 mutex_unlock(&hwsim->mutex);
1492}
1493
e8261171
JB		 1494static void hw_roc_done(struct work_struct *work)
1495{
1496 struct mac80211_hwsim_data *hwsim =
1497 container_of(work, struct mac80211_hwsim_data, roc_done.work);
1498
1499 mutex_lock(&hwsim->mutex);
1500 ieee80211_remain_on_channel_expired(hwsim->hw);
1501 hwsim->tmp_chan = NULL;
1502 mutex_unlock(&hwsim->mutex);
1503
1504 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC expired\n");
1505}
1506
1507static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
49884568 1508 struct ieee80211_vif *vif,
e8261171 1509 struct ieee80211_channel *chan,
d339d5ca
IP		 1510 int duration,
1511 enum ieee80211_roc_type type)
e8261171
JB		 1512{
1513 struct mac80211_hwsim_data *hwsim = hw->priv;
1514
1515 mutex_lock(&hwsim->mutex);
1516 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1517 mutex_unlock(&hwsim->mutex);
1518 return -EBUSY;
1519 }
1520
1521 hwsim->tmp_chan = chan;
1522 mutex_unlock(&hwsim->mutex);
1523
1524 wiphy_debug(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
1525 chan->center_freq, duration);
1526
1527 ieee80211_ready_on_channel(hw);
1528
1529 ieee80211_queue_delayed_work(hw, &hwsim->roc_done,
1530 msecs_to_jiffies(duration));
1531 return 0;
1532}
1533
1534static int mac80211_hwsim_croc(struct ieee80211_hw *hw)
1535{
1536 struct mac80211_hwsim_data *hwsim = hw->priv;
1537
1538 cancel_delayed_work_sync(&hwsim->roc_done);
1539
1540 mutex_lock(&hwsim->mutex);
1541 hwsim->tmp_chan = NULL;
1542 mutex_unlock(&hwsim->mutex);
1543
1544 wiphy_debug(hw->wiphy, "hwsim ROC canceled\n");
1545
1546 return 0;
1547}
1548
1549static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
1550 struct ieee80211_chanctx_conf *ctx)
1551{
1552 hwsim_set_chanctx_magic(ctx);
4bf88530
JB		 1553 wiphy_debug(hw->wiphy,
1554 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1555 ctx->def.chan->center_freq, ctx->def.width,
1556 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1557 return 0;
1558}
1559
1560static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
1561 struct ieee80211_chanctx_conf *ctx)
1562{
4bf88530
JB		 1563 wiphy_debug(hw->wiphy,
1564 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1565 ctx->def.chan->center_freq, ctx->def.width,
1566 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1567 hwsim_check_chanctx_magic(ctx);
1568 hwsim_clear_chanctx_magic(ctx);
1569}
1570
1571static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
1572 struct ieee80211_chanctx_conf *ctx,
1573 u32 changed)
1574{
1575 hwsim_check_chanctx_magic(ctx);
4bf88530
JB		 1576 wiphy_debug(hw->wiphy,
1577 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1578 ctx->def.chan->center_freq, ctx->def.width,
1579 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1580}
1581
1582static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
1583 struct ieee80211_vif *vif,
1584 struct ieee80211_chanctx_conf *ctx)
1585{
1586 hwsim_check_magic(vif);
1587 hwsim_check_chanctx_magic(ctx);
1588
1589 return 0;
1590}
1591
1592static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
1593 struct ieee80211_vif *vif,
1594 struct ieee80211_chanctx_conf *ctx)
1595{
1596 hwsim_check_magic(vif);
1597 hwsim_check_chanctx_magic(ctx);
1598}
1599
38ed5048 1600static const struct ieee80211_ops mac80211_hwsim_ops = {
acc1e7a3
JM		 1601 .tx = mac80211_hwsim_tx,
1602 .start = mac80211_hwsim_start,
1603 .stop = mac80211_hwsim_stop,
1604 .add_interface = mac80211_hwsim_add_interface,
c35d0270 1605 .change_interface = mac80211_hwsim_change_interface,
acc1e7a3
JM		 1606 .remove_interface = mac80211_hwsim_remove_interface,
1607 .config = mac80211_hwsim_config,
1608 .configure_filter = mac80211_hwsim_configure_filter,
8aa21e6f 1609 .bss_info_changed = mac80211_hwsim_bss_info_changed,
1d669cbf
JB		 1610 .sta_add = mac80211_hwsim_sta_add,
1611 .sta_remove = mac80211_hwsim_sta_remove,
8aa21e6f 1612 .sta_notify = mac80211_hwsim_sta_notify,
81c06523 1613 .set_tim = mac80211_hwsim_set_tim,
1e898ff8 1614 .conf_tx = mac80211_hwsim_conf_tx,
1289723e 1615 .get_survey = mac80211_hwsim_get_survey,
aff89a9b 1616 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
8b73d13a 1617 .ampdu_action = mac80211_hwsim_ampdu_action,
f74cb0f7
LR		 1618 .sw_scan_start = mac80211_hwsim_sw_scan,
1619 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
a80f7c0b 1620 .flush = mac80211_hwsim_flush,
12ce8ba3
JC		 1621 .get_tsf = mac80211_hwsim_get_tsf,
1622 .set_tsf = mac80211_hwsim_set_tsf,
acc1e7a3
JM		 1623};
1624
38ed5048 1625static struct ieee80211_ops mac80211_hwsim_mchan_ops;
acc1e7a3 1626
e4afb603 1627static void mac80211_hwsim_destroy_radio(struct mac80211_hwsim_data *data)
acc1e7a3 1628{
e4afb603
JB		 1629 debugfs_remove_recursive(data->debugfs);
1630 ieee80211_unregister_hw(data->hw);
1631 device_release_driver(data->dev);
1632 device_unregister(data->dev);
1633 ieee80211_free_hw(data->hw);
1634}
0e057d73 1635
e4afb603
JB		 1636static void mac80211_hwsim_free(void)
1637{
1638 struct mac80211_hwsim_data *data;
0e057d73
JB		 1639
1640 spin_lock_bh(&hwsim_radio_lock);
e4afb603
JB		 1641 while ((data = list_first_entry_or_null(&hwsim_radios,
1642 struct mac80211_hwsim_data,
1643 list))) {
1644 list_del(&data->list);
1645 spin_unlock_bh(&hwsim_radio_lock);
1646 mac80211_hwsim_destroy_radio(data);
1647 spin_lock_bh(&hwsim_radio_lock);
acc1e7a3 1648 }
e4afb603 1649 spin_unlock_bh(&hwsim_radio_lock);
acc1e7a3
JM		 1650 class_destroy(hwsim_class);
1651}
1652
c07fe5ae
SL		 1653static struct platform_driver mac80211_hwsim_driver = {
1654 .driver = {
1655 .name = "mac80211_hwsim",
1656 .owner = THIS_MODULE,
1657 },
acc1e7a3
JM		 1658};
1659
98d2faae
SH		 1660static const struct net_device_ops hwsim_netdev_ops = {
1661 .ndo_start_xmit = hwsim_mon_xmit,
1662 .ndo_change_mtu = eth_change_mtu,
1663 .ndo_set_mac_address = eth_mac_addr,
1664 .ndo_validate_addr = eth_validate_addr,
1665};
acc1e7a3
JM		 1666
1667static void hwsim_mon_setup(struct net_device *dev)
1668{
98d2faae 1669 dev->netdev_ops = &hwsim_netdev_ops;
acc1e7a3
JM		 1670 dev->destructor = free_netdev;
1671 ether_setup(dev);
1672 dev->tx_queue_len = 0;
1673 dev->type = ARPHRD_IEEE80211_RADIOTAP;
1674 memset(dev->dev_addr, 0, ETH_ALEN);
1675 dev->dev_addr[0] = 0x12;
1676}
1677
1678
fc6971d4
JM		 1679static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
1680{
1681 struct mac80211_hwsim_data *data = dat;
1682 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
fc6971d4
JM		 1683 struct sk_buff *skb;
1684 struct ieee80211_pspoll *pspoll;
1685
1686 if (!vp->assoc)
1687 return;
1688
c96c31e4
JP		 1689 wiphy_debug(data->hw->wiphy,
1690 "%s: send PS-Poll to %pM for aid %d\n",
1691 __func__, vp->bssid, vp->aid);
fc6971d4
JM		 1692
1693 skb = dev_alloc_skb(sizeof(*pspoll));
1694 if (!skb)
1695 return;
1696 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
1697 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
1698 IEEE80211_STYPE_PSPOLL |
1699 IEEE80211_FCTL_PM);
1700 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
1701 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
1702 memcpy(pspoll->ta, mac, ETH_ALEN);
7882513b 1703
e8261171
JB		 1704 rcu_read_lock();
1705 mac80211_hwsim_tx_frame(data->hw, skb,
4bf88530 1706 rcu_dereference(vif->chanctx_conf)->def.chan);
e8261171 1707 rcu_read_unlock();
fc6971d4
JM		 1708}
1709
fc6971d4
JM		 1710static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
1711 struct ieee80211_vif *vif, int ps)
1712{
1713 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
fc6971d4
JM		 1714 struct sk_buff *skb;
1715 struct ieee80211_hdr *hdr;
1716
1717 if (!vp->assoc)
1718 return;
1719
c96c31e4
JP		 1720 wiphy_debug(data->hw->wiphy,
1721 "%s: send data::nullfunc to %pM ps=%d\n",
1722 __func__, vp->bssid, ps);
fc6971d4
JM		 1723
1724 skb = dev_alloc_skb(sizeof(*hdr));
1725 if (!skb)
1726 return;
1727 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
1728 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1729 IEEE80211_STYPE_NULLFUNC |
1730 (ps ? IEEE80211_FCTL_PM : 0));
1731 hdr->duration_id = cpu_to_le16(0);
1732 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
1733 memcpy(hdr->addr2, mac, ETH_ALEN);
1734 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
7882513b 1735
e8261171
JB		 1736 rcu_read_lock();
1737 mac80211_hwsim_tx_frame(data->hw, skb,
4bf88530 1738 rcu_dereference(vif->chanctx_conf)->def.chan);
e8261171 1739 rcu_read_unlock();
fc6971d4
JM		 1740}
1741
1742
1743static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
1744 struct ieee80211_vif *vif)
1745{
1746 struct mac80211_hwsim_data *data = dat;
1747 hwsim_send_nullfunc(data, mac, vif, 1);
1748}
1749
1750
1751static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
1752 struct ieee80211_vif *vif)
1753{
1754 struct mac80211_hwsim_data *data = dat;
1755 hwsim_send_nullfunc(data, mac, vif, 0);
1756}
1757
1758
1759static int hwsim_fops_ps_read(void *dat, u64 *val)
1760{
1761 struct mac80211_hwsim_data *data = dat;
1762 *val = data->ps;
1763 return 0;
1764}
1765
1766static int hwsim_fops_ps_write(void *dat, u64 val)
1767{
1768 struct mac80211_hwsim_data *data = dat;
1769 enum ps_mode old_ps;
1770
1771 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
1772 val != PS_MANUAL_POLL)
1773 return -EINVAL;
1774
1775 old_ps = data->ps;
1776 data->ps = val;
1777
1778 if (val == PS_MANUAL_POLL) {
1779 ieee80211_iterate_active_interfaces(data->hw,
8b2c9824 1780 IEEE80211_IFACE_ITER_NORMAL,
fc6971d4
JM		 1781 hwsim_send_ps_poll, data);
1782 data->ps_poll_pending = true;
1783 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
1784 ieee80211_iterate_active_interfaces(data->hw,
8b2c9824 1785 IEEE80211_IFACE_ITER_NORMAL,
fc6971d4
JM		 1786 hwsim_send_nullfunc_ps,
1787 data);
1788 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
1789 ieee80211_iterate_active_interfaces(data->hw,
8b2c9824 1790 IEEE80211_IFACE_ITER_NORMAL,
fc6971d4
JM		 1791 hwsim_send_nullfunc_no_ps,
1792 data);
1793 }
1794
1795 return 0;
1796}
1797
1798DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
1799 "%llu\n");
1800
bba05e3d
JD		 1801static int hwsim_write_simulate_radar(void *dat, u64 val)
1802{
1803 struct mac80211_hwsim_data *data = dat;
1804
1805 ieee80211_radar_detected(data->hw);
1806
1807 return 0;
1808}
1809
1810DEFINE_SIMPLE_ATTRIBUTE(hwsim_simulate_radar, NULL,
1811 hwsim_write_simulate_radar, "%llu\n");
fc6971d4 1812
73606d00
DW		 1813static int hwsim_fops_group_read(void *dat, u64 *val)
1814{
1815 struct mac80211_hwsim_data *data = dat;
1816 *val = data->group;
1817 return 0;
1818}
1819
1820static int hwsim_fops_group_write(void *dat, u64 val)
1821{
1822 struct mac80211_hwsim_data *data = dat;
1823 data->group = val;
1824 return 0;
1825}
1826
1827DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
1828 hwsim_fops_group_read, hwsim_fops_group_write,
1829 "%llx\n");
1830
f483ad25 1831static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(
7882513b
JL		 1832 struct mac_address *addr)
1833{
1834 struct mac80211_hwsim_data *data;
1835 bool _found = false;
1836
1837 spin_lock_bh(&hwsim_radio_lock);
1838 list_for_each_entry(data, &hwsim_radios, list) {
1839 if (memcmp(data->addresses[1].addr, addr,
1840 sizeof(struct mac_address)) == 0) {
1841 _found = true;
1842 break;
1843 }
1844 }
1845 spin_unlock_bh(&hwsim_radio_lock);
1846
1847 if (!_found)
1848 return NULL;
1849
1850 return data;
1851}
1852
1853static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
1854 struct genl_info *info)
1855{
1856
1857 struct ieee80211_hdr *hdr;
1858 struct mac80211_hwsim_data *data2;
1859 struct ieee80211_tx_info *txi;
1860 struct hwsim_tx_rate *tx_attempts;
d0f718c1 1861 unsigned long ret_skb_ptr;
7882513b
JL		 1862 struct sk_buff *skb, *tmp;
1863 struct mac_address *src;
1864 unsigned int hwsim_flags;
1865
1866 int i;
1867 bool found = false;
1868
1869 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
1870 !info->attrs[HWSIM_ATTR_FLAGS] ||
1871 !info->attrs[HWSIM_ATTR_COOKIE] ||
1872 !info->attrs[HWSIM_ATTR_TX_INFO])
1873 goto out;
1874
1875 src = (struct mac_address *)nla_data(
1876 info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
1877 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
1878
d0f718c1 1879 ret_skb_ptr = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
7882513b
JL		 1880
1881 data2 = get_hwsim_data_ref_from_addr(src);
1882
1883 if (data2 == NULL)
1884 goto out;
1885
1886 /* look for the skb matching the cookie passed back from user */
1887 skb_queue_walk_safe(&data2->pending, skb, tmp) {
d0f718c1 1888 if ((unsigned long)skb == ret_skb_ptr) {
7882513b
JL		 1889 skb_unlink(skb, &data2->pending);
1890 found = true;
1891 break;
1892 }
1893 }
1894
1895 /* not found */
1896 if (!found)
1897 goto out;
1898
1899 /* Tx info received because the frame was broadcasted on user space,
1900 so we get all the necessary info: tx attempts and skb control buff */
1901
1902 tx_attempts = (struct hwsim_tx_rate *)nla_data(
1903 info->attrs[HWSIM_ATTR_TX_INFO]);
1904
1905 /* now send back TX status */
1906 txi = IEEE80211_SKB_CB(skb);
1907
7882513b
JL		 1908 ieee80211_tx_info_clear_status(txi);
1909
1910 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
1911 txi->status.rates[i].idx = tx_attempts[i].idx;
1912 txi->status.rates[i].count = tx_attempts[i].count;
1913 /*txi->status.rates[i].flags = 0;*/
1914 }
1915
1916 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
1917
1918 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
1919 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
1920 if (skb->len >= 16) {
1921 hdr = (struct ieee80211_hdr *) skb->data;
e8261171
JB		 1922 mac80211_hwsim_monitor_ack(txi->rate_driver_data[0],
1923 hdr->addr2);
7882513b 1924 }
06cf5c4c 1925 txi->flags |= IEEE80211_TX_STAT_ACK;
7882513b
JL		 1926 }
1927 ieee80211_tx_status_irqsafe(data2->hw, skb);
1928 return 0;
1929out:
1930 return -EINVAL;
1931
1932}
1933
1934static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
1935 struct genl_info *info)
1936{
1937
e8261171 1938 struct mac80211_hwsim_data *data2;
7882513b
JL		 1939 struct ieee80211_rx_status rx_status;
1940 struct mac_address *dst;
1941 int frame_data_len;
1942 char *frame_data;
1943 struct sk_buff *skb = NULL;
1944
1945 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
e8261171
JB		 1946 !info->attrs[HWSIM_ATTR_FRAME] ||
1947 !info->attrs[HWSIM_ATTR_RX_RATE] ||
1948 !info->attrs[HWSIM_ATTR_SIGNAL])
7882513b
JL		 1949 goto out;
1950
1951 dst = (struct mac_address *)nla_data(
1952 info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
1953
1954 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
1955 frame_data = (char *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
1956
1957 /* Allocate new skb here */
1958 skb = alloc_skb(frame_data_len, GFP_KERNEL);
1959 if (skb == NULL)
1960 goto err;
1961
1962 if (frame_data_len <= IEEE80211_MAX_DATA_LEN) {
1963 /* Copy the data */
1964 memcpy(skb_put(skb, frame_data_len), frame_data,
1965 frame_data_len);
1966 } else
1967 goto err;
1968
1969 data2 = get_hwsim_data_ref_from_addr(dst);
1970
1971 if (data2 == NULL)
1972 goto out;
1973
1974 /* check if radio is configured properly */
1975
e8261171 1976 if (data2->idle || !data2->started)
7882513b
JL		 1977 goto out;
1978
1979 /*A frame is received from user space*/
1980 memset(&rx_status, 0, sizeof(rx_status));
1981 rx_status.freq = data2->channel->center_freq;
1982 rx_status.band = data2->channel->band;
1983 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
1984 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
1985
1986 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
1987 ieee80211_rx_irqsafe(data2->hw, skb);
1988
1989 return 0;
1990err:
c393862f 1991 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 1992 goto out;
1993out:
1994 dev_kfree_skb(skb);
1995 return -EINVAL;
1996}
1997
1998static int hwsim_register_received_nl(struct sk_buff *skb_2,
1999 struct genl_info *info)
2000{
2001 if (info == NULL)
2002 goto out;
2003
15e47304 2004 wmediumd_portid = info->snd_portid;
7882513b
JL		 2005
2006 printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
15e47304 2007 "switching to wmediumd mode with pid %d\n", info->snd_portid);
7882513b
JL		 2008
2009 return 0;
2010out:
c393862f 2011 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 2012 return -EINVAL;
2013}
2014
2015/* Generic Netlink operations array */
4534de83 2016static const struct genl_ops hwsim_ops[] = {
7882513b
JL		 2017 {
2018 .cmd = HWSIM_CMD_REGISTER,
2019 .policy = hwsim_genl_policy,
2020 .doit = hwsim_register_received_nl,
2021 .flags = GENL_ADMIN_PERM,
2022 },
2023 {
2024 .cmd = HWSIM_CMD_FRAME,
2025 .policy = hwsim_genl_policy,
2026 .doit = hwsim_cloned_frame_received_nl,
2027 },
2028 {
2029 .cmd = HWSIM_CMD_TX_INFO_FRAME,
2030 .policy = hwsim_genl_policy,
2031 .doit = hwsim_tx_info_frame_received_nl,
2032 },
2033};
2034
2035static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
2036 unsigned long state,
2037 void *_notify)
2038{
2039 struct netlink_notify *notify = _notify;
2040
2041 if (state != NETLINK_URELEASE)
2042 return NOTIFY_DONE;
2043
15e47304 2044 if (notify->portid == wmediumd_portid) {
7882513b
JL		 2045 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
2046 " socket, switching to perfect channel medium\n");
15e47304 2047 wmediumd_portid = 0;
7882513b
JL		 2048 }
2049 return NOTIFY_DONE;
2050
2051}
2052
2053static struct notifier_block hwsim_netlink_notifier = {
2054 .notifier_call = mac80211_hwsim_netlink_notify,
2055};
2056
2057static int hwsim_init_netlink(void)
2058{
2059 int rc;
e8261171
JB		 2060
2061 /* userspace test API hasn't been adjusted for multi-channel */
2062 if (channels > 1)
2063 return 0;
2064
7882513b
JL		 2065 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
2066
c53ed742 2067 rc = genl_register_family_with_ops(&hwsim_genl_family, hwsim_ops);
7882513b
JL		 2068 if (rc)
2069 goto failure;
2070
2071 rc = netlink_register_notifier(&hwsim_netlink_notifier);
2072 if (rc)
2073 goto failure;
2074
2075 return 0;
2076
2077failure:
c393862f 2078 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 2079 return -EINVAL;
2080}
2081
2082static void hwsim_exit_netlink(void)
2083{
e8261171
JB		 2084 /* userspace test API hasn't been adjusted for multi-channel */
2085 if (channels > 1)
2086 return;
2087
7882513b
JL		 2088 /* unregister the notifier */
2089 netlink_unregister_notifier(&hwsim_netlink_notifier);
2090 /* unregister the family */
cf7a6b2d 2091 genl_unregister_family(&hwsim_genl_family);
7882513b
JL		 2092}
2093
1ae2fc25
JB		 2094static const struct ieee80211_iface_limit hwsim_if_limits[] = {
2095 { .max = 1, .types = BIT(NL80211_IFTYPE_ADHOC) },
2096 { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) |
2097 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2098#ifdef CONFIG_MAC80211_MESH
2099 BIT(NL80211_IFTYPE_MESH_POINT) |
2100#endif
2101 BIT(NL80211_IFTYPE_AP) |
2102 BIT(NL80211_IFTYPE_P2P_GO) },
8b3d1cc2 2103 { .max = 1, .types = BIT(NL80211_IFTYPE_P2P_DEVICE) },
1ae2fc25
JB		 2104};
2105
bba05e3d
JD		 2106static const struct ieee80211_iface_limit hwsim_if_dfs_limits[] = {
2107 { .max = 8, .types = BIT(NL80211_IFTYPE_AP) },
2108};
2109
38ed5048 2110static const struct ieee80211_iface_combination hwsim_if_comb[] = {
bba05e3d
JD		 2111 {
2112 .limits = hwsim_if_limits,
2113 .n_limits = ARRAY_SIZE(hwsim_if_limits),
2114 .max_interfaces = 2048,
2115 .num_different_channels = 1,
2116 },
2117 {
2118 .limits = hwsim_if_dfs_limits,
2119 .n_limits = ARRAY_SIZE(hwsim_if_dfs_limits),
2120 .max_interfaces = 8,
2121 .num_different_channels = 1,
2122 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
2123 BIT(NL80211_CHAN_WIDTH_20) |
2124 BIT(NL80211_CHAN_WIDTH_40) |
2125 BIT(NL80211_CHAN_WIDTH_80) |
2126 BIT(NL80211_CHAN_WIDTH_160),
2127 }
1ae2fc25
JB		 2128};
2129
2d68992b 2130static int __init mac80211_hwsim_create_radio(void)
acc1e7a3 2131{
f39c2bfa 2132 int err;
acc1e7a3
JM		 2133 u8 addr[ETH_ALEN];
2134 struct mac80211_hwsim_data *data;
2135 struct ieee80211_hw *hw;
22cad735 2136 enum ieee80211_band band;
f39c2bfa 2137 const struct ieee80211_ops *ops = &mac80211_hwsim_ops;
2d68992b
JB		 2138 int idx;
2139
2140 spin_lock_bh(&hwsim_radio_lock);
2141 idx = hwsim_radio_idx++;
2142 spin_unlock_bh(&hwsim_radio_lock);
f39c2bfa
JB		 2143
2144 if (channels > 1)
2145 ops = &mac80211_hwsim_mchan_ops;
2146 hw = ieee80211_alloc_hw(sizeof(*data), ops);
2147 if (!hw) {
2148 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw failed\n");
2149 err = -ENOMEM;
2150 goto failed;
2151 }
2152 data = hw->priv;
2153 data->hw = hw;
2154
2155 data->dev = device_create(hwsim_class, NULL, 0, hw, "hwsim%d", idx);
2156 if (IS_ERR(data->dev)) {
2157 printk(KERN_DEBUG
2158 "mac80211_hwsim: device_create failed (%ld)\n",
2159 PTR_ERR(data->dev));
2160 err = -ENOMEM;
2161 goto failed_drvdata;
2162 }
2163 data->dev->driver = &mac80211_hwsim_driver.driver;
2164 err = device_bind_driver(data->dev);
2165 if (err != 0) {
2166 printk(KERN_DEBUG "mac80211_hwsim: device_bind_driver failed (%d)\n",
2167 err);
2168 goto failed_hw;
2169 }
2170
2171 skb_queue_head_init(&data->pending);
2172
2173 SET_IEEE80211_DEV(hw, data->dev);
2174 memset(addr, 0, ETH_ALEN);
2175 addr[0] = 0x02;
2176 addr[3] = idx >> 8;
2177 addr[4] = idx;
2178 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
2179 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
2180 data->addresses[1].addr[0] |= 0x40;
2181 hw->wiphy->n_addresses = 2;
2182 hw->wiphy->addresses = data->addresses;
2183
2184 data->channels = channels;
2185
2186 if (data->channels > 1) {
2187 hw->wiphy->max_scan_ssids = 255;
2188 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
2189 hw->wiphy->max_remain_on_channel_duration = 1000;
2190 /* For channels > 1 DFS is not allowed */
2191 hw->wiphy->n_iface_combinations = 1;
2192 hw->wiphy->iface_combinations = &data->if_combination;
2193 data->if_combination = hwsim_if_comb[0];
2194 data->if_combination.num_different_channels = data->channels;
2195 } else {
2196 hw->wiphy->iface_combinations = hwsim_if_comb;
2197 hw->wiphy->n_iface_combinations = ARRAY_SIZE(hwsim_if_comb);
2198 }
2199
2200 INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
2201 INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
2202
2203 hw->queues = 5;
2204 hw->offchannel_tx_hw_queue = 4;
2205 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2206 BIT(NL80211_IFTYPE_AP) |
2207 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2208 BIT(NL80211_IFTYPE_P2P_GO) |
2209 BIT(NL80211_IFTYPE_ADHOC) |
2210 BIT(NL80211_IFTYPE_MESH_POINT) |
2211 BIT(NL80211_IFTYPE_P2P_DEVICE);
2212
2213 hw->flags = IEEE80211_HW_MFP_CAPABLE |
2214 IEEE80211_HW_SIGNAL_DBM |
2215 IEEE80211_HW_SUPPORTS_STATIC_SMPS |
2216 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
2217 IEEE80211_HW_AMPDU_AGGREGATION |
2218 IEEE80211_HW_WANT_MONITOR_VIF |
2219 IEEE80211_HW_QUEUE_CONTROL |
2220 IEEE80211_HW_SUPPORTS_HT_CCK_RATES;
2221 if (rctbl)
2222 hw->flags |= IEEE80211_HW_SUPPORTS_RC_TABLE;
2223
2224 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2225 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
2226 WIPHY_FLAG_AP_UAPSD;
2227 hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR;
2228
2229 /* ask mac80211 to reserve space for magic */
2230 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
2231 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
2232 hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
2233
2234 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
2235 sizeof(hwsim_channels_2ghz));
2236 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
2237 sizeof(hwsim_channels_5ghz));
2238 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
2239
2240 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
2241 struct ieee80211_supported_band *sband = &data->bands[band];
2242 switch (band) {
2243 case IEEE80211_BAND_2GHZ:
2244 sband->channels = data->channels_2ghz;
2245 sband->n_channels = ARRAY_SIZE(hwsim_channels_2ghz);
2246 sband->bitrates = data->rates;
2247 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
2248 break;
2249 case IEEE80211_BAND_5GHZ:
2250 sband->channels = data->channels_5ghz;
2251 sband->n_channels = ARRAY_SIZE(hwsim_channels_5ghz);
2252 sband->bitrates = data->rates + 4;
2253 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
2254 break;
2255 default:
2256 continue;
2257 }
2258
2259 sband->ht_cap.ht_supported = true;
2260 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
2261 IEEE80211_HT_CAP_GRN_FLD |
2262 IEEE80211_HT_CAP_SGI_40 |
2263 IEEE80211_HT_CAP_DSSSCCK40;
2264 sband->ht_cap.ampdu_factor = 0x3;
2265 sband->ht_cap.ampdu_density = 0x6;
2266 memset(&sband->ht_cap.mcs, 0,
2267 sizeof(sband->ht_cap.mcs));
2268 sband->ht_cap.mcs.rx_mask[0] = 0xff;
2269 sband->ht_cap.mcs.rx_mask[1] = 0xff;
2270 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2271
2272 hw->wiphy->bands[band] = sband;
2273
2274 sband->vht_cap.vht_supported = true;
2275 sband->vht_cap.cap =
2276 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
2277 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
2278 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ |
2279 IEEE80211_VHT_CAP_RXLDPC |
2280 IEEE80211_VHT_CAP_SHORT_GI_80 |
2281 IEEE80211_VHT_CAP_SHORT_GI_160 |
2282 IEEE80211_VHT_CAP_TXSTBC |
2283 IEEE80211_VHT_CAP_RXSTBC_1 |
2284 IEEE80211_VHT_CAP_RXSTBC_2 |
2285 IEEE80211_VHT_CAP_RXSTBC_3 |
2286 IEEE80211_VHT_CAP_RXSTBC_4 |
2287 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
2288 sband->vht_cap.vht_mcs.rx_mcs_map =
2289 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_8 << 0 |
2290 IEEE80211_VHT_MCS_SUPPORT_0_8 << 2 |
2291 IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
2292 IEEE80211_VHT_MCS_SUPPORT_0_8 << 6 |
2293 IEEE80211_VHT_MCS_SUPPORT_0_8 << 8 |
2294 IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
2295 IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
2296 IEEE80211_VHT_MCS_SUPPORT_0_8 << 14);
2297 sband->vht_cap.vht_mcs.tx_mcs_map =
2298 sband->vht_cap.vht_mcs.rx_mcs_map;
2299 }
2300
2301 /* By default all radios belong to the first group */
2302 data->group = 1;
2303 mutex_init(&data->mutex);
2304
2305 /* Enable frame retransmissions for lossy channels */
2306 hw->max_rates = 4;
2307 hw->max_rate_tries = 11;
2308
2309 err = ieee80211_register_hw(hw);
2310 if (err < 0) {
2311 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_register_hw failed (%d)\n",
2312 err);
2313 goto failed_hw;
2314 }
2315
2316 wiphy_debug(hw->wiphy, "hwaddr %pM registered\n", hw->wiphy->perm_addr);
2317
2318 data->debugfs = debugfs_create_dir("hwsim", hw->wiphy->debugfsdir);
2319 debugfs_create_file("ps", 0666, data->debugfs, data, &hwsim_fops_ps);
2320 debugfs_create_file("group", 0666, data->debugfs, data,
2321 &hwsim_fops_group);
2322 if (data->channels == 1)
2323 debugfs_create_file("dfs_simulate_radar", 0222,
2324 data->debugfs,
2325 data, &hwsim_simulate_radar);
2326
2327 tasklet_hrtimer_init(&data->beacon_timer,
2328 mac80211_hwsim_beacon,
2329 CLOCK_MONOTONIC_RAW, HRTIMER_MODE_ABS);
2330
2331 spin_lock_bh(&hwsim_radio_lock);
2332 list_add_tail(&data->list, &hwsim_radios);
2333 spin_unlock_bh(&hwsim_radio_lock);
2334
2335 return 0;
2336
2337failed_hw:
2338 device_unregister(data->dev);
2339failed_drvdata:
2340 ieee80211_free_hw(hw);
2341failed:
2342 return err;
2343}
2344
2345static int __init init_mac80211_hwsim(void)
2346{
2347 int i, err;
acc1e7a3 2348
0e057d73 2349 if (radios < 1 || radios > 100)
acc1e7a3
JM		 2350 return -EINVAL;
2351
e8261171
JB		 2352 if (channels < 1)
2353 return -EINVAL;
2354
38ed5048
JB		 2355 mac80211_hwsim_mchan_ops = mac80211_hwsim_ops;
2356 mac80211_hwsim_mchan_ops.hw_scan = mac80211_hwsim_hw_scan;
2357 mac80211_hwsim_mchan_ops.cancel_hw_scan = mac80211_hwsim_cancel_hw_scan;
2358 mac80211_hwsim_mchan_ops.sw_scan_start = NULL;
2359 mac80211_hwsim_mchan_ops.sw_scan_complete = NULL;
2360 mac80211_hwsim_mchan_ops.remain_on_channel = mac80211_hwsim_roc;
2361 mac80211_hwsim_mchan_ops.cancel_remain_on_channel = mac80211_hwsim_croc;
2362 mac80211_hwsim_mchan_ops.add_chanctx = mac80211_hwsim_add_chanctx;
2363 mac80211_hwsim_mchan_ops.remove_chanctx = mac80211_hwsim_remove_chanctx;
2364 mac80211_hwsim_mchan_ops.change_chanctx = mac80211_hwsim_change_chanctx;
2365 mac80211_hwsim_mchan_ops.assign_vif_chanctx =
2366 mac80211_hwsim_assign_vif_chanctx;
2367 mac80211_hwsim_mchan_ops.unassign_vif_chanctx =
2368 mac80211_hwsim_unassign_vif_chanctx;
69068036 2369
0e057d73
JB		 2370 spin_lock_init(&hwsim_radio_lock);
2371 INIT_LIST_HEAD(&hwsim_radios);
acc1e7a3 2372
c07fe5ae 2373 err = platform_driver_register(&mac80211_hwsim_driver);
9ea92774
MP		 2374 if (err)
2375 return err;
2376
acc1e7a3 2377 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
9ea92774
MP		 2378 if (IS_ERR(hwsim_class)) {
2379 err = PTR_ERR(hwsim_class);
f39c2bfa 2380 goto out_unregister_driver;
9ea92774 2381 }
acc1e7a3 2382
0e057d73 2383 for (i = 0; i < radios; i++) {
2d68992b 2384 err = mac80211_hwsim_create_radio();
f39c2bfa
JB		 2385 if (err)
2386 goto out_free_radios;
acc1e7a3
JM		 2387 }
2388
2389 hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
bcdd8220
WY		 2390 if (hwsim_mon == NULL) {
2391 err = -ENOMEM;
f39c2bfa 2392 goto out_free_radios;
bcdd8220 2393 }
acc1e7a3 2394
7882513b 2395 rtnl_lock();
7882513b 2396 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
f39c2bfa
JB		 2397 if (err < 0) {
2398 rtnl_unlock();
2399 goto out_free_radios;
2400 }
7882513b
JL		 2401
2402 err = register_netdevice(hwsim_mon);
f39c2bfa
JB		 2403 if (err < 0) {
2404 rtnl_unlock();
2405 goto out_free_mon;
2406 }
7882513b
JL		 2407 rtnl_unlock();
2408
2409 err = hwsim_init_netlink();
2410 if (err < 0)
f39c2bfa 2411 goto out_free_mon;
7882513b 2412
acc1e7a3
JM		 2413 return 0;
2414
f39c2bfa 2415out_free_mon:
acc1e7a3 2416 free_netdev(hwsim_mon);
f39c2bfa 2417out_free_radios:
3a33cc10 2418 mac80211_hwsim_free();
f39c2bfa 2419out_unregister_driver:
c07fe5ae 2420 platform_driver_unregister(&mac80211_hwsim_driver);
acc1e7a3
JM		 2421 return err;
2422}
f8fffc7e 2423module_init(init_mac80211_hwsim);
acc1e7a3
JM		 2424
2425static void __exit exit_mac80211_hwsim(void)
2426{
0e057d73 2427 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
acc1e7a3 2428
7882513b
JL		 2429 hwsim_exit_netlink();
2430
acc1e7a3 2431 mac80211_hwsim_free();
5d416351 2432 unregister_netdev(hwsim_mon);
c07fe5ae 2433 platform_driver_unregister(&mac80211_hwsim_driver);
acc1e7a3 2434}
acc1e7a3 2435module_exit(exit_mac80211_hwsim);
Linux kernel - Deliverables
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