projects / deliverable / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
mac80211_hwsim: minor netlink cleanups
[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] = {
9ddd12af
JB		 301 [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
302 [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
7882513b
JL		 303 [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
304 .len = IEEE80211_MAX_DATA_LEN },
305 [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
306 [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
307 [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
308 [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC,
9ddd12af
JB		 309 .len = IEEE80211_TX_MAX_RATES *
310 sizeof(struct hwsim_tx_rate)},
7882513b
JL		 311 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
312};
acc1e7a3 313
d0cf9c0d
SH		 314static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
315 struct net_device *dev)
acc1e7a3
JM		 316{
317 /* TODO: allow packet injection */
318 dev_kfree_skb(skb);
6ed10654 319 return NETDEV_TX_OK;
acc1e7a3
JM		 320}
321
b66851c3
TP		 322static inline u64 mac80211_hwsim_get_tsf_raw(void)
323{
324 return ktime_to_us(ktime_get_real());
325}
326
2f40b940
JC		 327static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
328{
b66851c3 329 u64 now = mac80211_hwsim_get_tsf_raw();
2f40b940
JC		 330 return cpu_to_le64(now + data->tsf_offset);
331}
acc1e7a3 332
12ce8ba3 333static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
b66851c3 334 struct ieee80211_vif *vif)
12ce8ba3
JC		 335{
336 struct mac80211_hwsim_data *data = hw->priv;
337 return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
338}
339
340static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
341 struct ieee80211_vif *vif, u64 tsf)
342{
343 struct mac80211_hwsim_data *data = hw->priv;
45034bfb 344 u64 now = mac80211_hwsim_get_tsf(hw, vif);
c51f8783 345 u32 bcn_int = data->beacon_int;
45034bfb
TP		 346 s64 delta = tsf - now;
347
348 data->tsf_offset += delta;
c51f8783
TP		 349 /* adjust after beaconing with new timestamp at old TBTT */
350 data->bcn_delta = do_div(delta, bcn_int);
12ce8ba3
JC		 351}
352
acc1e7a3 353static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
e8261171
JB		 354 struct sk_buff *tx_skb,
355 struct ieee80211_channel *chan)
acc1e7a3
JM		 356{
357 struct mac80211_hwsim_data *data = hw->priv;
358 struct sk_buff *skb;
359 struct hwsim_radiotap_hdr *hdr;
360 u16 flags;
361 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
362 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
363
364 if (!netif_running(hwsim_mon))
365 return;
366
367 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
368 if (skb == NULL)
369 return;
370
371 hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
372 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
373 hdr->hdr.it_pad = 0;
374 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
f248f105
JM		 375 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
376 (1 << IEEE80211_RADIOTAP_RATE) |
2f40b940 377 (1 << IEEE80211_RADIOTAP_TSFT) |
f248f105 378 (1 << IEEE80211_RADIOTAP_CHANNEL));
2f40b940 379 hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
acc1e7a3
JM		 380 hdr->rt_flags = 0;
381 hdr->rt_rate = txrate->bitrate / 5;
e8261171 382 hdr->rt_channel = cpu_to_le16(chan->center_freq);
acc1e7a3
JM		 383 flags = IEEE80211_CHAN_2GHZ;
384 if (txrate->flags & IEEE80211_RATE_ERP_G)
385 flags |= IEEE80211_CHAN_OFDM;
386 else
387 flags |= IEEE80211_CHAN_CCK;
388 hdr->rt_chbitmask = cpu_to_le16(flags);
389
390 skb->dev = hwsim_mon;
391 skb_set_mac_header(skb, 0);
392 skb->ip_summed = CHECKSUM_UNNECESSARY;
393 skb->pkt_type = PACKET_OTHERHOST;
f248f105 394 skb->protocol = htons(ETH_P_802_2);
acc1e7a3
JM		 395 memset(skb->cb, 0, sizeof(skb->cb));
396 netif_rx(skb);
397}
398
399
e8261171
JB		 400static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
401 const u8 *addr)
6c085227 402{
6c085227 403 struct sk_buff *skb;
76a56eb3 404 struct hwsim_radiotap_ack_hdr *hdr;
6c085227
JM		 405 u16 flags;
406 struct ieee80211_hdr *hdr11;
407
408 if (!netif_running(hwsim_mon))
409 return;
410
411 skb = dev_alloc_skb(100);
412 if (skb == NULL)
413 return;
414
76a56eb3 415 hdr = (struct hwsim_radiotap_ack_hdr *) skb_put(skb, sizeof(*hdr));
6c085227
JM		 416 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
417 hdr->hdr.it_pad = 0;
418 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
419 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
420 (1 << IEEE80211_RADIOTAP_CHANNEL));
421 hdr->rt_flags = 0;
76a56eb3 422 hdr->pad = 0;
e8261171 423 hdr->rt_channel = cpu_to_le16(chan->center_freq);
6c085227
JM		 424 flags = IEEE80211_CHAN_2GHZ;
425 hdr->rt_chbitmask = cpu_to_le16(flags);
426
427 hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
428 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
429 IEEE80211_STYPE_ACK);
430 hdr11->duration_id = cpu_to_le16(0);
431 memcpy(hdr11->addr1, addr, ETH_ALEN);
432
433 skb->dev = hwsim_mon;
434 skb_set_mac_header(skb, 0);
435 skb->ip_summed = CHECKSUM_UNNECESSARY;
436 skb->pkt_type = PACKET_OTHERHOST;
437 skb->protocol = htons(ETH_P_802_2);
438 memset(skb->cb, 0, sizeof(skb->cb));
439 netif_rx(skb);
440}
441
442
fc6971d4
JM		 443static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
444 struct sk_buff *skb)
445{
446 switch (data->ps) {
447 case PS_DISABLED:
448 return true;
449 case PS_ENABLED:
450 return false;
451 case PS_AUTO_POLL:
452 /* TODO: accept (some) Beacons by default and other frames only
453 * if pending PS-Poll has been sent */
454 return true;
455 case PS_MANUAL_POLL:
456 /* Allow unicast frames to own address if there is a pending
457 * PS-Poll */
458 if (data->ps_poll_pending &&
459 memcmp(data->hw->wiphy->perm_addr, skb->data + 4,
460 ETH_ALEN) == 0) {
461 data->ps_poll_pending = false;
462 return true;
463 }
464 return false;
465 }
466
467 return true;
468}
469
470
265dc7f0
JM		 471struct mac80211_hwsim_addr_match_data {
472 bool ret;
473 const u8 *addr;
474};
475
476static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
477 struct ieee80211_vif *vif)
478{
479 struct mac80211_hwsim_addr_match_data *md = data;
480 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
481 md->ret = true;
482}
483
484
485static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
486 const u8 *addr)
487{
488 struct mac80211_hwsim_addr_match_data md;
489
490 if (memcmp(addr, data->hw->wiphy->perm_addr, ETH_ALEN) == 0)
491 return true;
492
493 md.ret = false;
494 md.addr = addr;
495 ieee80211_iterate_active_interfaces_atomic(data->hw,
8b2c9824 496 IEEE80211_IFACE_ITER_NORMAL,
265dc7f0
JM		 497 mac80211_hwsim_addr_iter,
498 &md);
499
500 return md.ret;
501}
502
7882513b
JL		 503static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
504 struct sk_buff *my_skb,
15e47304 505 int dst_portid)
7882513b
JL		 506{
507 struct sk_buff *skb;
508 struct mac80211_hwsim_data *data = hw->priv;
509 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
510 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
511 void *msg_head;
512 unsigned int hwsim_flags = 0;
513 int i;
514 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
515
7882513b
JL		 516 if (data->ps != PS_DISABLED)
517 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
518 /* If the queue contains MAX_QUEUE skb's drop some */
519 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
520 /* Droping until WARN_QUEUE level */
521 while (skb_queue_len(&data->pending) >= WARN_QUEUE)
522 skb_dequeue(&data->pending);
523 }
524
58050fce 525 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
7882513b
JL		 526 if (skb == NULL)
527 goto nla_put_failure;
528
529 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
530 HWSIM_CMD_FRAME);
531 if (msg_head == NULL) {
532 printk(KERN_DEBUG "mac80211_hwsim: problem with msg_head\n");
533 goto nla_put_failure;
534 }
535
633c9389 536 if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
9ddd12af 537 ETH_ALEN, data->addresses[1].addr))
633c9389 538 goto nla_put_failure;
265dc7f0 539
7882513b 540 /* We get the skb->data */
633c9389
DM		 541 if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
542 goto nla_put_failure;
7882513b
JL		 543
544 /* We get the flags for this transmission, and we translate them to
545 wmediumd flags */
546
547 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
548 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
549
550 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
551 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
552
633c9389
DM		 553 if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
554 goto nla_put_failure;
7882513b
JL		 555
556 /* We get the tx control (rate and retries) info*/
557
558 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
559 tx_attempts[i].idx = info->status.rates[i].idx;
560 tx_attempts[i].count = info->status.rates[i].count;
561 }
562
633c9389
DM		 563 if (nla_put(skb, HWSIM_ATTR_TX_INFO,
564 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
565 tx_attempts))
566 goto nla_put_failure;
7882513b
JL		 567
568 /* We create a cookie to identify this skb */
633c9389
DM		 569 if (nla_put_u64(skb, HWSIM_ATTR_COOKIE, (unsigned long) my_skb))
570 goto nla_put_failure;
7882513b
JL		 571
572 genlmsg_end(skb, msg_head);
15e47304 573 genlmsg_unicast(&init_net, skb, dst_portid);
7882513b
JL		 574
575 /* Enqueue the packet */
576 skb_queue_tail(&data->pending, my_skb);
577 return;
578
579nla_put_failure:
c393862f 580 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 581}
582
e8261171
JB		 583static bool hwsim_chans_compat(struct ieee80211_channel *c1,
584 struct ieee80211_channel *c2)
585{
586 if (!c1 || !c2)
587 return false;
588
589 return c1->center_freq == c2->center_freq;
590}
591
592struct tx_iter_data {
593 struct ieee80211_channel *channel;
594 bool receive;
595};
596
597static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
598 struct ieee80211_vif *vif)
599{
600 struct tx_iter_data *data = _data;
601
602 if (!vif->chanctx_conf)
603 return;
604
605 if (!hwsim_chans_compat(data->channel,
4bf88530 606 rcu_dereference(vif->chanctx_conf)->def.chan))
e8261171
JB		 607 return;
608
609 data->receive = true;
610}
611
7882513b 612static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
e8261171
JB		 613 struct sk_buff *skb,
614 struct ieee80211_channel *chan)
acc1e7a3 615{
0e057d73
JB		 616 struct mac80211_hwsim_data *data = hw->priv, *data2;
617 bool ack = false;
e36cfdc9 618 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
acc1e7a3 619 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
e36cfdc9 620 struct ieee80211_rx_status rx_status;
b66851c3 621 u64 now;
acc1e7a3
JM		 622
623 memset(&rx_status, 0, sizeof(rx_status));
f4bda337 624 rx_status.flag |= RX_FLAG_MACTIME_START;
e8261171
JB		 625 rx_status.freq = chan->center_freq;
626 rx_status.band = chan->band;
dad6330d
KB		 627 if (info->control.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) {
628 rx_status.rate_idx =
629 ieee80211_rate_get_vht_mcs(&info->control.rates[0]);
630 rx_status.vht_nss =
631 ieee80211_rate_get_vht_nss(&info->control.rates[0]);
632 rx_status.flag |= RX_FLAG_VHT;
633 } else {
634 rx_status.rate_idx = info->control.rates[0].idx;
635 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
636 rx_status.flag |= RX_FLAG_HT;
637 }
281ed297
JM		 638 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
639 rx_status.flag |= RX_FLAG_40MHZ;
640 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
641 rx_status.flag |= RX_FLAG_SHORT_GI;
4b14c96d 642 /* TODO: simulate real signal strength (and optional packet loss) */
bdd7bd16 643 rx_status.signal = data->power_level - 50;
acc1e7a3 644
fc6971d4
JM		 645 if (data->ps != PS_DISABLED)
646 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
647
90e3012e
JB		 648 /* release the skb's source info */
649 skb_orphan(skb);
c0acf38e 650 skb_dst_drop(skb);
90e3012e
JB		 651 skb->mark = 0;
652 secpath_reset(skb);
653 nf_reset(skb);
654
b66851c3
TP		 655 /*
656 * Get absolute mactime here so all HWs RX at the "same time", and
657 * absolute TX time for beacon mactime so the timestamp matches.
658 * Giving beacons a different mactime than non-beacons looks messy, but
659 * it helps the Toffset be exact and a ~10us mactime discrepancy
660 * probably doesn't really matter.
661 */
662 if (ieee80211_is_beacon(hdr->frame_control) ||
663 ieee80211_is_probe_resp(hdr->frame_control))
664 now = data->abs_bcn_ts;
665 else
666 now = mac80211_hwsim_get_tsf_raw();
667
acc1e7a3 668 /* Copy skb to all enabled radios that are on the current frequency */
0e057d73
JB		 669 spin_lock(&hwsim_radio_lock);
670 list_for_each_entry(data2, &hwsim_radios, list) {
acc1e7a3 671 struct sk_buff *nskb;
e8261171
JB		 672 struct tx_iter_data tx_iter_data = {
673 .receive = false,
674 .channel = chan,
675 };
acc1e7a3 676
0e057d73 677 if (data == data2)
acc1e7a3 678 continue;
0e057d73 679
e8261171
JB		 680 if (!data2->started || (data2->idle && !data2->tmp_chan) ||
681 !hwsim_ps_rx_ok(data2, skb))
acc1e7a3
JM		 682 continue;
683
e8261171
JB		 684 if (!(data->group & data2->group))
685 continue;
686
687 if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
688 !hwsim_chans_compat(chan, data2->channel)) {
689 ieee80211_iterate_active_interfaces_atomic(
8b2c9824
JB		 690 data2->hw, IEEE80211_IFACE_ITER_NORMAL,
691 mac80211_hwsim_tx_iter, &tx_iter_data);
e8261171
JB		 692 if (!tx_iter_data.receive)
693 continue;
694 }
695
90b9e446
JB		 696 /*
697 * reserve some space for our vendor and the normal
698 * radiotap header, since we're copying anyway
699 */
a357d7f9
JB		 700 if (skb->len < PAGE_SIZE && paged_rx) {
701 struct page *page = alloc_page(GFP_ATOMIC);
702
703 if (!page)
704 continue;
705
706 nskb = dev_alloc_skb(128);
707 if (!nskb) {
708 __free_page(page);
709 continue;
710 }
711
712 memcpy(page_address(page), skb->data, skb->len);
713 skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
714 } else {
715 nskb = skb_copy(skb, GFP_ATOMIC);
716 if (!nskb)
717 continue;
718 }
acc1e7a3 719
265dc7f0 720 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
0e057d73 721 ack = true;
f483ad25 722
b66851c3 723 rx_status.mactime = now + data2->tsf_offset;
90b9e446
JB		 724#if 0
725 /*
726 * Don't enable this code by default as the OUI 00:00:00
727 * is registered to Xerox so we shouldn't use it here, it
728 * might find its way into pcap files.
729 * Note that this code requires the headroom in the SKB
730 * that was allocated earlier.
731 */
732 rx_status.vendor_radiotap_oui[0] = 0x00;
733 rx_status.vendor_radiotap_oui[1] = 0x00;
734 rx_status.vendor_radiotap_oui[2] = 0x00;
735 rx_status.vendor_radiotap_subns = 127;
736 /*
737 * Radiotap vendor namespaces can (and should) also be
738 * split into fields by using the standard radiotap
739 * presence bitmap mechanism. Use just BIT(0) here for
740 * the presence bitmap.
741 */
742 rx_status.vendor_radiotap_bitmap = BIT(0);
743 /* We have 8 bytes of (dummy) data */
744 rx_status.vendor_radiotap_len = 8;
745 /* For testing, also require it to be aligned */
746 rx_status.vendor_radiotap_align = 8;
747 /* push the data */
748 memcpy(skb_push(nskb, 8), "ABCDEFGH", 8);
749#endif
750
f1d58c25
JB		 751 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
752 ieee80211_rx_irqsafe(data2->hw, nskb);
acc1e7a3 753 }
0e057d73 754 spin_unlock(&hwsim_radio_lock);
acc1e7a3 755
e36cfdc9
JM		 756 return ack;
757}
758
36323f81
TH		 759static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
760 struct ieee80211_tx_control *control,
761 struct sk_buff *skb)
e36cfdc9 762{
e8261171
JB		 763 struct mac80211_hwsim_data *data = hw->priv;
764 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
765 struct ieee80211_chanctx_conf *chanctx_conf;
766 struct ieee80211_channel *channel;
0e057d73 767 bool ack;
15e47304 768 u32 _portid;
e36cfdc9 769
e8261171 770 if (WARN_ON(skb->len < 10)) {
e36cfdc9 771 /* Should not happen; just a sanity check for addr1 use */
fe0f3cd2 772 ieee80211_free_txskb(hw, skb);
7bb45683 773 return;
e36cfdc9
JM		 774 }
775
38ed5048 776 if (data->channels == 1) {
e8261171
JB		 777 channel = data->channel;
778 } else if (txi->hw_queue == 4) {
779 channel = data->tmp_chan;
780 } else {
781 chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf);
782 if (chanctx_conf)
4bf88530 783 channel = chanctx_conf->def.chan;
e8261171
JB		 784 else
785 channel = NULL;
786 }
787
788 if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
fe0f3cd2 789 ieee80211_free_txskb(hw, skb);
e8261171
JB		 790 return;
791 }
792
793 if (data->idle && !data->tmp_chan) {
794 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
fe0f3cd2 795 ieee80211_free_txskb(hw, skb);
e8261171
JB		 796 return;
797 }
798
799 if (txi->control.vif)
800 hwsim_check_magic(txi->control.vif);
801 if (control->sta)
802 hwsim_check_sta_magic(control->sta);
803
81338410 804 if (hw->flags & IEEE80211_HW_SUPPORTS_RC_TABLE)
1eb32179
KB		 805 ieee80211_get_tx_rates(txi->control.vif, control->sta, skb,
806 txi->control.rates,
807 ARRAY_SIZE(txi->control.rates));
e8261171 808
1eb32179 809 txi->rate_driver_data[0] = channel;
e8261171
JB		 810 mac80211_hwsim_monitor_rx(hw, skb, channel);
811
7882513b 812 /* wmediumd mode check */
15e47304 813 _portid = ACCESS_ONCE(wmediumd_portid);
7882513b 814
15e47304
EB		 815 if (_portid)
816 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
7882513b
JL		 817
818 /* NO wmediumd detected, perfect medium simulation */
e8261171 819 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
7882513b 820
6c085227
JM		 821 if (ack && skb->len >= 16) {
822 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
e8261171 823 mac80211_hwsim_monitor_ack(channel, hdr->addr2);
6c085227 824 }
e36cfdc9 825
e6a9854b 826 ieee80211_tx_info_clear_status(txi);
2a4ffa4c
JC		 827
828 /* frame was transmitted at most favorable rate at first attempt */
829 txi->control.rates[0].count = 1;
830 txi->control.rates[1].idx = -1;
831
e6a9854b
JB		 832 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
833 txi->flags |= IEEE80211_TX_STAT_ACK;
acc1e7a3 834 ieee80211_tx_status_irqsafe(hw, skb);
acc1e7a3
JM		 835}
836
837
838static int mac80211_hwsim_start(struct ieee80211_hw *hw)
839{
840 struct mac80211_hwsim_data *data = hw->priv;
c96c31e4 841 wiphy_debug(hw->wiphy, "%s\n", __func__);
3db1cd5c 842 data->started = true;
acc1e7a3
JM		 843 return 0;
844}
845
846
847static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
848{
849 struct mac80211_hwsim_data *data = hw->priv;
3db1cd5c 850 data->started = false;
01e59e46 851 tasklet_hrtimer_cancel(&data->beacon_timer);
c96c31e4 852 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 853}
854
855
856static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
1ed32e4f 857 struct ieee80211_vif *vif)
acc1e7a3 858{
c96c31e4 859 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 860 __func__, ieee80211_vif_type_p2p(vif),
861 vif->addr);
1ed32e4f 862 hwsim_set_magic(vif);
e8261171
JB		 863
864 vif->cab_queue = 0;
865 vif->hw_queue[IEEE80211_AC_VO] = 0;
866 vif->hw_queue[IEEE80211_AC_VI] = 1;
867 vif->hw_queue[IEEE80211_AC_BE] = 2;
868 vif->hw_queue[IEEE80211_AC_BK] = 3;
869
acc1e7a3
JM		 870 return 0;
871}
872
873
c35d0270
JB		 874static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
875 struct ieee80211_vif *vif,
2ca27bcf
JB		 876 enum nl80211_iftype newtype,
877 bool newp2p)
c35d0270 878{
2ca27bcf 879 newtype = ieee80211_iftype_p2p(newtype, newp2p);
c35d0270
JB		 880 wiphy_debug(hw->wiphy,
881 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
2ca27bcf
JB		 882 __func__, ieee80211_vif_type_p2p(vif),
883 newtype, vif->addr);
c35d0270
JB		 884 hwsim_check_magic(vif);
885
3eb92f6a
JB		 886 /*
887 * interface may change from non-AP to AP in
888 * which case this needs to be set up again
889 */
890 vif->cab_queue = 0;
891
c35d0270
JB		 892 return 0;
893}
894
acc1e7a3 895static void mac80211_hwsim_remove_interface(
1ed32e4f 896 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
acc1e7a3 897{
c96c31e4 898 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
2ca27bcf
JB		 899 __func__, ieee80211_vif_type_p2p(vif),
900 vif->addr);
1ed32e4f
JB		 901 hwsim_check_magic(vif);
902 hwsim_clear_magic(vif);
acc1e7a3
JM		 903}
904
e8261171
JB		 905static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
906 struct sk_buff *skb,
907 struct ieee80211_channel *chan)
908{
909 u32 _pid = ACCESS_ONCE(wmediumd_portid);
910
81338410 911 if (hw->flags & IEEE80211_HW_SUPPORTS_RC_TABLE) {
1eb32179
KB		 912 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
913 ieee80211_get_tx_rates(txi->control.vif, NULL, skb,
914 txi->control.rates,
915 ARRAY_SIZE(txi->control.rates));
916 }
917
e8261171
JB		 918 mac80211_hwsim_monitor_rx(hw, skb, chan);
919
920 if (_pid)
921 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
922
923 mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
924 dev_kfree_skb(skb);
925}
acc1e7a3
JM		 926
927static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
928 struct ieee80211_vif *vif)
929{
b66851c3
TP		 930 struct mac80211_hwsim_data *data = arg;
931 struct ieee80211_hw *hw = data->hw;
932 struct ieee80211_tx_info *info;
933 struct ieee80211_rate *txrate;
934 struct ieee80211_mgmt *mgmt;
acc1e7a3 935 struct sk_buff *skb;
acc1e7a3 936
8aa21e6f
JB		 937 hwsim_check_magic(vif);
938
55b39619 939 if (vif->type != NL80211_IFTYPE_AP &&
2b2d7795
JB		 940 vif->type != NL80211_IFTYPE_MESH_POINT &&
941 vif->type != NL80211_IFTYPE_ADHOC)
acc1e7a3
JM		 942 return;
943
944 skb = ieee80211_beacon_get(hw, vif);
945 if (skb == NULL)
946 return;
b66851c3 947 info = IEEE80211_SKB_CB(skb);
81338410 948 if (hw->flags & IEEE80211_HW_SUPPORTS_RC_TABLE)
1eb32179
KB		 949 ieee80211_get_tx_rates(vif, NULL, skb,
950 info->control.rates,
951 ARRAY_SIZE(info->control.rates));
952
b66851c3
TP		 953 txrate = ieee80211_get_tx_rate(hw, info);
954
955 mgmt = (struct ieee80211_mgmt *) skb->data;
956 /* fake header transmission time */
957 data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
958 mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
959 data->tsf_offset +
960 24 * 8 * 10 / txrate->bitrate);
7882513b 961
e8261171 962 mac80211_hwsim_tx_frame(hw, skb,
4bf88530 963 rcu_dereference(vif->chanctx_conf)->def.chan);
acc1e7a3
JM		 964}
965
01e59e46
TP		 966static enum hrtimer_restart
967mac80211_hwsim_beacon(struct hrtimer *timer)
acc1e7a3 968{
01e59e46
TP		 969 struct mac80211_hwsim_data *data =
970 container_of(timer, struct mac80211_hwsim_data,
971 beacon_timer.timer);
972 struct ieee80211_hw *hw = data->hw;
973 u64 bcn_int = data->beacon_int;
974 ktime_t next_bcn;
acc1e7a3 975
4c4c671a 976 if (!data->started)
01e59e46 977 goto out;
acc1e7a3 978
f248f105 979 ieee80211_iterate_active_interfaces_atomic(
8b2c9824 980 hw, IEEE80211_IFACE_ITER_NORMAL,
b66851c3 981 mac80211_hwsim_beacon_tx, data);
acc1e7a3 982
c51f8783
TP		 983 /* beacon at new TBTT + beacon interval */
984 if (data->bcn_delta) {
985 bcn_int -= data->bcn_delta;
986 data->bcn_delta = 0;
987 }
988
01e59e46
TP		 989 next_bcn = ktime_add(hrtimer_get_expires(timer),
990 ns_to_ktime(bcn_int * 1000));
991 tasklet_hrtimer_start(&data->beacon_timer, next_bcn, HRTIMER_MODE_ABS);
992out:
993 return HRTIMER_NORESTART;
acc1e7a3
JM		 994}
995
675a0b04
KB		 996static const char * const hwsim_chanwidths[] = {
997 [NL80211_CHAN_WIDTH_20_NOHT] = "noht",
998 [NL80211_CHAN_WIDTH_20] = "ht20",
999 [NL80211_CHAN_WIDTH_40] = "ht40",
1000 [NL80211_CHAN_WIDTH_80] = "vht80",
1001 [NL80211_CHAN_WIDTH_80P80] = "vht80p80",
1002 [NL80211_CHAN_WIDTH_160] = "vht160",
0aaffa9b 1003};
acc1e7a3 1004
e8975581 1005static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
acc1e7a3
JM		 1006{
1007 struct mac80211_hwsim_data *data = hw->priv;
e8975581 1008 struct ieee80211_conf *conf = &hw->conf;
0f78231b
JB		 1009 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
1010 [IEEE80211_SMPS_AUTOMATIC] = "auto",
1011 [IEEE80211_SMPS_OFF] = "off",
1012 [IEEE80211_SMPS_STATIC] = "static",
1013 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
1014 };
1015
675a0b04
KB		 1016 if (conf->chandef.chan)
1017 wiphy_debug(hw->wiphy,
1018 "%s (freq=%d(%d - %d)/%s idle=%d ps=%d smps=%s)\n",
1019 __func__,
1020 conf->chandef.chan->center_freq,
1021 conf->chandef.center_freq1,
1022 conf->chandef.center_freq2,
1023 hwsim_chanwidths[conf->chandef.width],
1024 !!(conf->flags & IEEE80211_CONF_IDLE),
1025 !!(conf->flags & IEEE80211_CONF_PS),
1026 smps_modes[conf->smps_mode]);
1027 else
1028 wiphy_debug(hw->wiphy,
1029 "%s (freq=0 idle=%d ps=%d smps=%s)\n",
1030 __func__,
1031 !!(conf->flags & IEEE80211_CONF_IDLE),
1032 !!(conf->flags & IEEE80211_CONF_PS),
1033 smps_modes[conf->smps_mode]);
acc1e7a3 1034
70541839
JM		 1035 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1036
675a0b04 1037 data->channel = conf->chandef.chan;
e8261171 1038
38ed5048 1039 WARN_ON(data->channel && data->channels > 1);
e8261171 1040
bdd7bd16 1041 data->power_level = conf->power_level;
4c4c671a 1042 if (!data->started || !data->beacon_int)
01e59e46
TP		 1043 tasklet_hrtimer_cancel(&data->beacon_timer);
1044 else if (!hrtimer_is_queued(&data->beacon_timer.timer)) {
c51f8783
TP		 1045 u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
1046 u32 bcn_int = data->beacon_int;
1047 u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1048
01e59e46 1049 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1050 ns_to_ktime(until_tbtt * 1000),
01e59e46
TP		 1051 HRTIMER_MODE_REL);
1052 }
acc1e7a3
JM		 1053
1054 return 0;
1055}
1056
1057
1058static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
1059 unsigned int changed_flags,
3ac64bee 1060 unsigned int *total_flags,u64 multicast)
acc1e7a3
JM		 1061{
1062 struct mac80211_hwsim_data *data = hw->priv;
1063
c96c31e4 1064 wiphy_debug(hw->wiphy, "%s\n", __func__);
acc1e7a3
JM		 1065
1066 data->rx_filter = 0;
1067 if (*total_flags & FIF_PROMISC_IN_BSS)
1068 data->rx_filter |= FIF_PROMISC_IN_BSS;
1069 if (*total_flags & FIF_ALLMULTI)
1070 data->rx_filter |= FIF_ALLMULTI;
1071
1072 *total_flags = data->rx_filter;
1073}
1074
0bb861e6
JM		 1075static void mac80211_hwsim_bcn_en_iter(void *data, u8 *mac,
1076 struct ieee80211_vif *vif)
1077{
1078 unsigned int *count = data;
1079 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1080
1081 if (vp->bcn_en)
1082 (*count)++;
1083}
1084
8aa21e6f
JB		 1085static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
1086 struct ieee80211_vif *vif,
1087 struct ieee80211_bss_conf *info,
1088 u32 changed)
1089{
fc6971d4 1090 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
57c4d7b4 1091 struct mac80211_hwsim_data *data = hw->priv;
fc6971d4 1092
8aa21e6f 1093 hwsim_check_magic(vif);
fe63bfa3 1094
0bb861e6
JM		 1095 wiphy_debug(hw->wiphy, "%s(changed=0x%x vif->addr=%pM)\n",
1096 __func__, changed, vif->addr);
fe63bfa3 1097
2d0ddec5 1098 if (changed & BSS_CHANGED_BSSID) {
c96c31e4
JP		 1099 wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
1100 __func__, info->bssid);
2d0ddec5
JB		 1101 memcpy(vp->bssid, info->bssid, ETH_ALEN);
1102 }
1103
fe63bfa3 1104 if (changed & BSS_CHANGED_ASSOC) {
c96c31e4
JP		 1105 wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
1106 info->assoc, info->aid);
fc6971d4
JM		 1107 vp->assoc = info->assoc;
1108 vp->aid = info->aid;
fe63bfa3
JM		 1109 }
1110
57c4d7b4 1111 if (changed & BSS_CHANGED_BEACON_INT) {
c96c31e4 1112 wiphy_debug(hw->wiphy, " BCNINT: %d\n", info->beacon_int);
01e59e46
TP		 1113 data->beacon_int = info->beacon_int * 1024;
1114 }
1115
1116 if (changed & BSS_CHANGED_BEACON_ENABLED) {
1117 wiphy_debug(hw->wiphy, " BCN EN: %d\n", info->enable_beacon);
0bb861e6 1118 vp->bcn_en = info->enable_beacon;
01e59e46
TP		 1119 if (data->started &&
1120 !hrtimer_is_queued(&data->beacon_timer.timer) &&
1121 info->enable_beacon) {
c51f8783
TP		 1122 u64 tsf, until_tbtt;
1123 u32 bcn_int;
01e59e46
TP		 1124 if (WARN_ON(!data->beacon_int))
1125 data->beacon_int = 1000 * 1024;
c51f8783
TP		 1126 tsf = mac80211_hwsim_get_tsf(hw, vif);
1127 bcn_int = data->beacon_int;
1128 until_tbtt = bcn_int - do_div(tsf, bcn_int);
01e59e46 1129 tasklet_hrtimer_start(&data->beacon_timer,
c51f8783 1130 ns_to_ktime(until_tbtt * 1000),
01e59e46 1131 HRTIMER_MODE_REL);
0bb861e6
JM		 1132 } else if (!info->enable_beacon) {
1133 unsigned int count = 0;
cdb1b805 1134 ieee80211_iterate_active_interfaces_atomic(
0bb861e6
JM		 1135 data->hw, IEEE80211_IFACE_ITER_NORMAL,
1136 mac80211_hwsim_bcn_en_iter, &count);
1137 wiphy_debug(hw->wiphy, " beaconing vifs remaining: %u",
1138 count);
1139 if (count == 0)
1140 tasklet_hrtimer_cancel(&data->beacon_timer);
1141 }
57c4d7b4
JB		 1142 }
1143
fe63bfa3 1144 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
c96c31e4
JP		 1145 wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
1146 info->use_cts_prot);
fe63bfa3
JM		 1147 }
1148
1149 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
c96c31e4
JP		 1150 wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
1151 info->use_short_preamble);
fe63bfa3
JM		 1152 }
1153
1154 if (changed & BSS_CHANGED_ERP_SLOT) {
c96c31e4 1155 wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
fe63bfa3
JM		 1156 }
1157
1158 if (changed & BSS_CHANGED_HT) {
4bf88530
JB		 1159 wiphy_debug(hw->wiphy, " HT: op_mode=0x%x\n",
1160 info->ht_operation_mode);
fe63bfa3
JM		 1161 }
1162
1163 if (changed & BSS_CHANGED_BASIC_RATES) {
c96c31e4
JP		 1164 wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
1165 (unsigned long long) info->basic_rates);
fe63bfa3 1166 }
cbc668a7
JB		 1167
1168 if (changed & BSS_CHANGED_TXPOWER)
1169 wiphy_debug(hw->wiphy, " TX Power: %d dBm\n", info->txpower);
8aa21e6f
JB		 1170}
1171
1d669cbf
JB		 1172static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
1173 struct ieee80211_vif *vif,
1174 struct ieee80211_sta *sta)
1175{
1176 hwsim_check_magic(vif);
1177 hwsim_set_sta_magic(sta);
1178
1179 return 0;
1180}
1181
1182static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
1183 struct ieee80211_vif *vif,
1184 struct ieee80211_sta *sta)
1185{
1186 hwsim_check_magic(vif);
1187 hwsim_clear_sta_magic(sta);
1188
1189 return 0;
1190}
1191
8aa21e6f
JB		 1192static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
1193 struct ieee80211_vif *vif,
17741cdc
JB		 1194 enum sta_notify_cmd cmd,
1195 struct ieee80211_sta *sta)
8aa21e6f
JB		 1196{
1197 hwsim_check_magic(vif);
1d669cbf 1198
81c06523 1199 switch (cmd) {
89fad578
CL		 1200 case STA_NOTIFY_SLEEP:
1201 case STA_NOTIFY_AWAKE:
1202 /* TODO: make good use of these flags */
1203 break;
1d669cbf
JB		 1204 default:
1205 WARN(1, "Invalid sta notify: %d\n", cmd);
1206 break;
81c06523
JB		 1207 }
1208}
1209
1210static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
1211 struct ieee80211_sta *sta,
1212 bool set)
1213{
1214 hwsim_check_sta_magic(sta);
1215 return 0;
8aa21e6f 1216}
acc1e7a3 1217
1e898ff8 1218static int mac80211_hwsim_conf_tx(
8a3a3c85
EP		 1219 struct ieee80211_hw *hw,
1220 struct ieee80211_vif *vif, u16 queue,
1e898ff8
JM		 1221 const struct ieee80211_tx_queue_params *params)
1222{
c96c31e4
JP		 1223 wiphy_debug(hw->wiphy,
1224 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1225 __func__, queue,
1226 params->txop, params->cw_min,
1227 params->cw_max, params->aifs);
1e898ff8
JM		 1228 return 0;
1229}
1230
1289723e
HS		 1231static int mac80211_hwsim_get_survey(
1232 struct ieee80211_hw *hw, int idx,
1233 struct survey_info *survey)
1234{
1235 struct ieee80211_conf *conf = &hw->conf;
1236
c96c31e4 1237 wiphy_debug(hw->wiphy, "%s (idx=%d)\n", __func__, idx);
1289723e
HS		 1238
1239 if (idx != 0)
1240 return -ENOENT;
1241
1242 /* Current channel */
675a0b04 1243 survey->channel = conf->chandef.chan;
1289723e
HS		 1244
1245 /*
1246 * Magically conjured noise level --- this is only ok for simulated hardware.
1247 *
1248 * A real driver which cannot determine the real channel noise MUST NOT
1249 * report any noise, especially not a magically conjured one :-)
1250 */
1251 survey->filled = SURVEY_INFO_NOISE_DBM;
1252 survey->noise = -92;
1253
1254 return 0;
1255}
1256
aff89a9b
JB		 1257#ifdef CONFIG_NL80211_TESTMODE
1258/*
1259 * This section contains example code for using netlink
1260 * attributes with the testmode command in nl80211.
1261 */
1262
1263/* These enums need to be kept in sync with userspace */
1264enum hwsim_testmode_attr {
1265 __HWSIM_TM_ATTR_INVALID = 0,
1266 HWSIM_TM_ATTR_CMD = 1,
1267 HWSIM_TM_ATTR_PS = 2,
1268
1269 /* keep last */
1270 __HWSIM_TM_ATTR_AFTER_LAST,
1271 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1272};
1273
1274enum hwsim_testmode_cmd {
1275 HWSIM_TM_CMD_SET_PS = 0,
1276 HWSIM_TM_CMD_GET_PS = 1,
4d6d0ae2
JB		 1277 HWSIM_TM_CMD_STOP_QUEUES = 2,
1278 HWSIM_TM_CMD_WAKE_QUEUES = 3,
aff89a9b
JB		 1279};
1280
1281static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1282 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1283 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1284};
1285
1286static int hwsim_fops_ps_write(void *dat, u64 val);
1287
5bc38193 1288static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
52981cd7 1289 struct ieee80211_vif *vif,
5bc38193 1290 void *data, int len)
aff89a9b
JB		 1291{
1292 struct mac80211_hwsim_data *hwsim = hw->priv;
1293 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1294 struct sk_buff *skb;
1295 int err, ps;
1296
1297 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
1298 hwsim_testmode_policy);
1299 if (err)
1300 return err;
1301
1302 if (!tb[HWSIM_TM_ATTR_CMD])
1303 return -EINVAL;
1304
1305 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1306 case HWSIM_TM_CMD_SET_PS:
1307 if (!tb[HWSIM_TM_ATTR_PS])
1308 return -EINVAL;
1309 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1310 return hwsim_fops_ps_write(hwsim, ps);
1311 case HWSIM_TM_CMD_GET_PS:
1312 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1313 nla_total_size(sizeof(u32)));
1314 if (!skb)
1315 return -ENOMEM;
633c9389
DM		 1316 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
1317 goto nla_put_failure;
aff89a9b 1318 return cfg80211_testmode_reply(skb);
4d6d0ae2
JB		 1319 case HWSIM_TM_CMD_STOP_QUEUES:
1320 ieee80211_stop_queues(hw);
1321 return 0;
1322 case HWSIM_TM_CMD_WAKE_QUEUES:
1323 ieee80211_wake_queues(hw);
1324 return 0;
aff89a9b
JB		 1325 default:
1326 return -EOPNOTSUPP;
1327 }
1328
1329 nla_put_failure:
1330 kfree_skb(skb);
1331 return -ENOBUFS;
1332}
1333#endif
1334
8b73d13a
JB		 1335static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1336 struct ieee80211_vif *vif,
1337 enum ieee80211_ampdu_mlme_action action,
0b01f030
JB		 1338 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
1339 u8 buf_size)
8b73d13a
JB		 1340{
1341 switch (action) {
1342 case IEEE80211_AMPDU_TX_START:
1343 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1344 break;
18b559d5
JB		 1345 case IEEE80211_AMPDU_TX_STOP_CONT:
1346 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1347 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
8b73d13a
JB		 1348 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1349 break;
1350 case IEEE80211_AMPDU_TX_OPERATIONAL:
1351 break;
1352 case IEEE80211_AMPDU_RX_START:
1353 case IEEE80211_AMPDU_RX_STOP:
1354 break;
1355 default:
1356 return -EOPNOTSUPP;
1357 }
1358
1359 return 0;
1360}
1361
39ecc01d 1362static void mac80211_hwsim_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
a80f7c0b 1363{
7882513b 1364 /* Not implemented, queues only on kernel side */
a80f7c0b
JB		 1365}
1366
e8261171 1367static void hw_scan_work(struct work_struct *work)
69068036 1368{
e8261171
JB		 1369 struct mac80211_hwsim_data *hwsim =
1370 container_of(work, struct mac80211_hwsim_data, hw_scan.work);
1371 struct cfg80211_scan_request *req = hwsim->hw_scan_request;
1372 int dwell, i;
69068036 1373
e8261171
JB		 1374 mutex_lock(&hwsim->mutex);
1375 if (hwsim->scan_chan_idx >= req->n_channels) {
1376 wiphy_debug(hwsim->hw->wiphy, "hw scan complete\n");
1377 ieee80211_scan_completed(hwsim->hw, false);
1378 hwsim->hw_scan_request = NULL;
1379 hwsim->hw_scan_vif = NULL;
1380 hwsim->tmp_chan = NULL;
1381 mutex_unlock(&hwsim->mutex);
1382 return;
1383 }
1384
1385 wiphy_debug(hwsim->hw->wiphy, "hw scan %d MHz\n",
1386 req->channels[hwsim->scan_chan_idx]->center_freq);
1387
1388 hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
8fe02e16 1389 if (hwsim->tmp_chan->flags & IEEE80211_CHAN_NO_IR ||
e8261171
JB		 1390 !req->n_ssids) {
1391 dwell = 120;
1392 } else {
1393 dwell = 30;
1394 /* send probes */
1395 for (i = 0; i < req->n_ssids; i++) {
1396 struct sk_buff *probe;
1397
1398 probe = ieee80211_probereq_get(hwsim->hw,
1399 hwsim->hw_scan_vif,
1400 req->ssids[i].ssid,
1401 req->ssids[i].ssid_len,
b9a9ada1 1402 req->ie_len);
e8261171
JB		 1403 if (!probe)
1404 continue;
b9a9ada1
JB		 1405
1406 if (req->ie_len)
1407 memcpy(skb_put(probe, req->ie_len), req->ie,
1408 req->ie_len);
1409
e8261171
JB		 1410 local_bh_disable();
1411 mac80211_hwsim_tx_frame(hwsim->hw, probe,
1412 hwsim->tmp_chan);
1413 local_bh_enable();
1414 }
1415 }
1416 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
1417 msecs_to_jiffies(dwell));
1418 hwsim->scan_chan_idx++;
1419 mutex_unlock(&hwsim->mutex);
69068036
JB		 1420}
1421
1422static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
a060bbfe 1423 struct ieee80211_vif *vif,
69068036
JB		 1424 struct cfg80211_scan_request *req)
1425{
e8261171 1426 struct mac80211_hwsim_data *hwsim = hw->priv;
69068036 1427
e8261171
JB		 1428 mutex_lock(&hwsim->mutex);
1429 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1430 mutex_unlock(&hwsim->mutex);
1431 return -EBUSY;
1432 }
1433 hwsim->hw_scan_request = req;
1434 hwsim->hw_scan_vif = vif;
1435 hwsim->scan_chan_idx = 0;
1436 mutex_unlock(&hwsim->mutex);
69068036 1437
e8261171 1438 wiphy_debug(hw->wiphy, "hwsim hw_scan request\n");
69068036 1439
e8261171 1440 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
69068036
JB		 1441
1442 return 0;
1443}
1444
e8261171
JB		 1445static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
1446 struct ieee80211_vif *vif)
1447{
1448 struct mac80211_hwsim_data *hwsim = hw->priv;
1449
1450 wiphy_debug(hw->wiphy, "hwsim cancel_hw_scan\n");
1451
1452 cancel_delayed_work_sync(&hwsim->hw_scan);
1453
1454 mutex_lock(&hwsim->mutex);
1455 ieee80211_scan_completed(hwsim->hw, true);
1456 hwsim->tmp_chan = NULL;
1457 hwsim->hw_scan_request = NULL;
1458 hwsim->hw_scan_vif = NULL;
1459 mutex_unlock(&hwsim->mutex);
1460}
1461
f74cb0f7
LR		 1462static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw)
1463{
1464 struct mac80211_hwsim_data *hwsim = hw->priv;
1465
1466 mutex_lock(&hwsim->mutex);
1467
1468 if (hwsim->scanning) {
1469 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
1470 goto out;
1471 }
1472
1473 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
1474 hwsim->scanning = true;
1475
1476out:
1477 mutex_unlock(&hwsim->mutex);
1478}
1479
1480static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw)
1481{
1482 struct mac80211_hwsim_data *hwsim = hw->priv;
1483
1484 mutex_lock(&hwsim->mutex);
1485
1486 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
23ff98fc 1487 hwsim->scanning = false;
f74cb0f7
LR		 1488
1489 mutex_unlock(&hwsim->mutex);
1490}
1491
e8261171
JB		 1492static void hw_roc_done(struct work_struct *work)
1493{
1494 struct mac80211_hwsim_data *hwsim =
1495 container_of(work, struct mac80211_hwsim_data, roc_done.work);
1496
1497 mutex_lock(&hwsim->mutex);
1498 ieee80211_remain_on_channel_expired(hwsim->hw);
1499 hwsim->tmp_chan = NULL;
1500 mutex_unlock(&hwsim->mutex);
1501
1502 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC expired\n");
1503}
1504
1505static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
49884568 1506 struct ieee80211_vif *vif,
e8261171 1507 struct ieee80211_channel *chan,
d339d5ca
IP		 1508 int duration,
1509 enum ieee80211_roc_type type)
e8261171
JB		 1510{
1511 struct mac80211_hwsim_data *hwsim = hw->priv;
1512
1513 mutex_lock(&hwsim->mutex);
1514 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1515 mutex_unlock(&hwsim->mutex);
1516 return -EBUSY;
1517 }
1518
1519 hwsim->tmp_chan = chan;
1520 mutex_unlock(&hwsim->mutex);
1521
1522 wiphy_debug(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
1523 chan->center_freq, duration);
1524
1525 ieee80211_ready_on_channel(hw);
1526
1527 ieee80211_queue_delayed_work(hw, &hwsim->roc_done,
1528 msecs_to_jiffies(duration));
1529 return 0;
1530}
1531
1532static int mac80211_hwsim_croc(struct ieee80211_hw *hw)
1533{
1534 struct mac80211_hwsim_data *hwsim = hw->priv;
1535
1536 cancel_delayed_work_sync(&hwsim->roc_done);
1537
1538 mutex_lock(&hwsim->mutex);
1539 hwsim->tmp_chan = NULL;
1540 mutex_unlock(&hwsim->mutex);
1541
1542 wiphy_debug(hw->wiphy, "hwsim ROC canceled\n");
1543
1544 return 0;
1545}
1546
1547static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
1548 struct ieee80211_chanctx_conf *ctx)
1549{
1550 hwsim_set_chanctx_magic(ctx);
4bf88530
JB		 1551 wiphy_debug(hw->wiphy,
1552 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1553 ctx->def.chan->center_freq, ctx->def.width,
1554 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1555 return 0;
1556}
1557
1558static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
1559 struct ieee80211_chanctx_conf *ctx)
1560{
4bf88530
JB		 1561 wiphy_debug(hw->wiphy,
1562 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1563 ctx->def.chan->center_freq, ctx->def.width,
1564 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1565 hwsim_check_chanctx_magic(ctx);
1566 hwsim_clear_chanctx_magic(ctx);
1567}
1568
1569static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
1570 struct ieee80211_chanctx_conf *ctx,
1571 u32 changed)
1572{
1573 hwsim_check_chanctx_magic(ctx);
4bf88530
JB		 1574 wiphy_debug(hw->wiphy,
1575 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1576 ctx->def.chan->center_freq, ctx->def.width,
1577 ctx->def.center_freq1, ctx->def.center_freq2);
e8261171
JB		 1578}
1579
1580static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
1581 struct ieee80211_vif *vif,
1582 struct ieee80211_chanctx_conf *ctx)
1583{
1584 hwsim_check_magic(vif);
1585 hwsim_check_chanctx_magic(ctx);
1586
1587 return 0;
1588}
1589
1590static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
1591 struct ieee80211_vif *vif,
1592 struct ieee80211_chanctx_conf *ctx)
1593{
1594 hwsim_check_magic(vif);
1595 hwsim_check_chanctx_magic(ctx);
1596}
1597
38ed5048 1598static const struct ieee80211_ops mac80211_hwsim_ops = {
acc1e7a3
JM		 1599 .tx = mac80211_hwsim_tx,
1600 .start = mac80211_hwsim_start,
1601 .stop = mac80211_hwsim_stop,
1602 .add_interface = mac80211_hwsim_add_interface,
c35d0270 1603 .change_interface = mac80211_hwsim_change_interface,
acc1e7a3
JM		 1604 .remove_interface = mac80211_hwsim_remove_interface,
1605 .config = mac80211_hwsim_config,
1606 .configure_filter = mac80211_hwsim_configure_filter,
8aa21e6f 1607 .bss_info_changed = mac80211_hwsim_bss_info_changed,
1d669cbf
JB		 1608 .sta_add = mac80211_hwsim_sta_add,
1609 .sta_remove = mac80211_hwsim_sta_remove,
8aa21e6f 1610 .sta_notify = mac80211_hwsim_sta_notify,
81c06523 1611 .set_tim = mac80211_hwsim_set_tim,
1e898ff8 1612 .conf_tx = mac80211_hwsim_conf_tx,
1289723e 1613 .get_survey = mac80211_hwsim_get_survey,
aff89a9b 1614 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
8b73d13a 1615 .ampdu_action = mac80211_hwsim_ampdu_action,
f74cb0f7
LR		 1616 .sw_scan_start = mac80211_hwsim_sw_scan,
1617 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
a80f7c0b 1618 .flush = mac80211_hwsim_flush,
12ce8ba3
JC		 1619 .get_tsf = mac80211_hwsim_get_tsf,
1620 .set_tsf = mac80211_hwsim_set_tsf,
acc1e7a3
JM		 1621};
1622
38ed5048 1623static struct ieee80211_ops mac80211_hwsim_mchan_ops;
acc1e7a3 1624
e4afb603 1625static void mac80211_hwsim_destroy_radio(struct mac80211_hwsim_data *data)
acc1e7a3 1626{
e4afb603
JB		 1627 debugfs_remove_recursive(data->debugfs);
1628 ieee80211_unregister_hw(data->hw);
1629 device_release_driver(data->dev);
1630 device_unregister(data->dev);
1631 ieee80211_free_hw(data->hw);
1632}
0e057d73 1633
e4afb603
JB		 1634static void mac80211_hwsim_free(void)
1635{
1636 struct mac80211_hwsim_data *data;
0e057d73
JB		 1637
1638 spin_lock_bh(&hwsim_radio_lock);
e4afb603
JB		 1639 while ((data = list_first_entry_or_null(&hwsim_radios,
1640 struct mac80211_hwsim_data,
1641 list))) {
1642 list_del(&data->list);
1643 spin_unlock_bh(&hwsim_radio_lock);
1644 mac80211_hwsim_destroy_radio(data);
1645 spin_lock_bh(&hwsim_radio_lock);
acc1e7a3 1646 }
e4afb603 1647 spin_unlock_bh(&hwsim_radio_lock);
acc1e7a3
JM		 1648 class_destroy(hwsim_class);
1649}
1650
c07fe5ae
SL		 1651static struct platform_driver mac80211_hwsim_driver = {
1652 .driver = {
1653 .name = "mac80211_hwsim",
1654 .owner = THIS_MODULE,
1655 },
acc1e7a3
JM		 1656};
1657
98d2faae
SH		 1658static const struct net_device_ops hwsim_netdev_ops = {
1659 .ndo_start_xmit = hwsim_mon_xmit,
1660 .ndo_change_mtu = eth_change_mtu,
1661 .ndo_set_mac_address = eth_mac_addr,
1662 .ndo_validate_addr = eth_validate_addr,
1663};
acc1e7a3
JM		 1664
1665static void hwsim_mon_setup(struct net_device *dev)
1666{
98d2faae 1667 dev->netdev_ops = &hwsim_netdev_ops;
acc1e7a3
JM		 1668 dev->destructor = free_netdev;
1669 ether_setup(dev);
1670 dev->tx_queue_len = 0;
1671 dev->type = ARPHRD_IEEE80211_RADIOTAP;
1672 memset(dev->dev_addr, 0, ETH_ALEN);
1673 dev->dev_addr[0] = 0x12;
1674}
1675
1676
fc6971d4
JM		 1677static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
1678{
1679 struct mac80211_hwsim_data *data = dat;
1680 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
fc6971d4
JM		 1681 struct sk_buff *skb;
1682 struct ieee80211_pspoll *pspoll;
1683
1684 if (!vp->assoc)
1685 return;
1686
c96c31e4
JP		 1687 wiphy_debug(data->hw->wiphy,
1688 "%s: send PS-Poll to %pM for aid %d\n",
1689 __func__, vp->bssid, vp->aid);
fc6971d4
JM		 1690
1691 skb = dev_alloc_skb(sizeof(*pspoll));
1692 if (!skb)
1693 return;
1694 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
1695 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
1696 IEEE80211_STYPE_PSPOLL |
1697 IEEE80211_FCTL_PM);
1698 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
1699 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
1700 memcpy(pspoll->ta, mac, ETH_ALEN);
7882513b 1701
e8261171
JB		 1702 rcu_read_lock();
1703 mac80211_hwsim_tx_frame(data->hw, skb,
4bf88530 1704 rcu_dereference(vif->chanctx_conf)->def.chan);
e8261171 1705 rcu_read_unlock();
fc6971d4
JM		 1706}
1707
fc6971d4
JM		 1708static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
1709 struct ieee80211_vif *vif, int ps)
1710{
1711 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
fc6971d4
JM		 1712 struct sk_buff *skb;
1713 struct ieee80211_hdr *hdr;
1714
1715 if (!vp->assoc)
1716 return;
1717
c96c31e4
JP		 1718 wiphy_debug(data->hw->wiphy,
1719 "%s: send data::nullfunc to %pM ps=%d\n",
1720 __func__, vp->bssid, ps);
fc6971d4
JM		 1721
1722 skb = dev_alloc_skb(sizeof(*hdr));
1723 if (!skb)
1724 return;
1725 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
1726 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1727 IEEE80211_STYPE_NULLFUNC |
1728 (ps ? IEEE80211_FCTL_PM : 0));
1729 hdr->duration_id = cpu_to_le16(0);
1730 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
1731 memcpy(hdr->addr2, mac, ETH_ALEN);
1732 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
7882513b 1733
e8261171
JB		 1734 rcu_read_lock();
1735 mac80211_hwsim_tx_frame(data->hw, skb,
4bf88530 1736 rcu_dereference(vif->chanctx_conf)->def.chan);
e8261171 1737 rcu_read_unlock();
fc6971d4
JM		 1738}
1739
1740
1741static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
1742 struct ieee80211_vif *vif)
1743{
1744 struct mac80211_hwsim_data *data = dat;
1745 hwsim_send_nullfunc(data, mac, vif, 1);
1746}
1747
1748
1749static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
1750 struct ieee80211_vif *vif)
1751{
1752 struct mac80211_hwsim_data *data = dat;
1753 hwsim_send_nullfunc(data, mac, vif, 0);
1754}
1755
1756
1757static int hwsim_fops_ps_read(void *dat, u64 *val)
1758{
1759 struct mac80211_hwsim_data *data = dat;
1760 *val = data->ps;
1761 return 0;
1762}
1763
1764static int hwsim_fops_ps_write(void *dat, u64 val)
1765{
1766 struct mac80211_hwsim_data *data = dat;
1767 enum ps_mode old_ps;
1768
1769 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
1770 val != PS_MANUAL_POLL)
1771 return -EINVAL;
1772
1773 old_ps = data->ps;
1774 data->ps = val;
1775
1776 if (val == PS_MANUAL_POLL) {
1777 ieee80211_iterate_active_interfaces(data->hw,
8b2c9824 1778 IEEE80211_IFACE_ITER_NORMAL,
fc6971d4
JM		 1779 hwsim_send_ps_poll, data);
1780 data->ps_poll_pending = true;
1781 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
1782 ieee80211_iterate_active_interfaces(data->hw,
8b2c9824 1783 IEEE80211_IFACE_ITER_NORMAL,
fc6971d4
JM		 1784 hwsim_send_nullfunc_ps,
1785 data);
1786 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
1787 ieee80211_iterate_active_interfaces(data->hw,
8b2c9824 1788 IEEE80211_IFACE_ITER_NORMAL,
fc6971d4
JM		 1789 hwsim_send_nullfunc_no_ps,
1790 data);
1791 }
1792
1793 return 0;
1794}
1795
1796DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
1797 "%llu\n");
1798
bba05e3d
JD		 1799static int hwsim_write_simulate_radar(void *dat, u64 val)
1800{
1801 struct mac80211_hwsim_data *data = dat;
1802
1803 ieee80211_radar_detected(data->hw);
1804
1805 return 0;
1806}
1807
1808DEFINE_SIMPLE_ATTRIBUTE(hwsim_simulate_radar, NULL,
1809 hwsim_write_simulate_radar, "%llu\n");
fc6971d4 1810
73606d00
DW		 1811static int hwsim_fops_group_read(void *dat, u64 *val)
1812{
1813 struct mac80211_hwsim_data *data = dat;
1814 *val = data->group;
1815 return 0;
1816}
1817
1818static int hwsim_fops_group_write(void *dat, u64 val)
1819{
1820 struct mac80211_hwsim_data *data = dat;
1821 data->group = val;
1822 return 0;
1823}
1824
1825DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
1826 hwsim_fops_group_read, hwsim_fops_group_write,
1827 "%llx\n");
1828
9ddd12af 1829static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(const u8 *addr)
7882513b
JL		 1830{
1831 struct mac80211_hwsim_data *data;
1832 bool _found = false;
1833
1834 spin_lock_bh(&hwsim_radio_lock);
1835 list_for_each_entry(data, &hwsim_radios, list) {
9ddd12af 1836 if (memcmp(data->addresses[1].addr, addr, ETH_ALEN) == 0) {
7882513b
JL		 1837 _found = true;
1838 break;
1839 }
1840 }
1841 spin_unlock_bh(&hwsim_radio_lock);
1842
1843 if (!_found)
1844 return NULL;
1845
1846 return data;
1847}
1848
1849static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
1850 struct genl_info *info)
1851{
1852
1853 struct ieee80211_hdr *hdr;
1854 struct mac80211_hwsim_data *data2;
1855 struct ieee80211_tx_info *txi;
1856 struct hwsim_tx_rate *tx_attempts;
d0f718c1 1857 unsigned long ret_skb_ptr;
7882513b 1858 struct sk_buff *skb, *tmp;
9ddd12af 1859 const u8 *src;
7882513b 1860 unsigned int hwsim_flags;
7882513b
JL		 1861 int i;
1862 bool found = false;
1863
1864 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
9ddd12af
JB		 1865 !info->attrs[HWSIM_ATTR_FLAGS] ||
1866 !info->attrs[HWSIM_ATTR_COOKIE] ||
1867 !info->attrs[HWSIM_ATTR_TX_INFO])
7882513b
JL		 1868 goto out;
1869
9ddd12af 1870 src = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
7882513b 1871 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
d0f718c1 1872 ret_skb_ptr = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
7882513b
JL		 1873
1874 data2 = get_hwsim_data_ref_from_addr(src);
9ddd12af 1875 if (!data2)
7882513b
JL		 1876 goto out;
1877
1878 /* look for the skb matching the cookie passed back from user */
1879 skb_queue_walk_safe(&data2->pending, skb, tmp) {
d0f718c1 1880 if ((unsigned long)skb == ret_skb_ptr) {
7882513b
JL		 1881 skb_unlink(skb, &data2->pending);
1882 found = true;
1883 break;
1884 }
1885 }
1886
1887 /* not found */
1888 if (!found)
1889 goto out;
1890
1891 /* Tx info received because the frame was broadcasted on user space,
1892 so we get all the necessary info: tx attempts and skb control buff */
1893
1894 tx_attempts = (struct hwsim_tx_rate *)nla_data(
1895 info->attrs[HWSIM_ATTR_TX_INFO]);
1896
1897 /* now send back TX status */
1898 txi = IEEE80211_SKB_CB(skb);
1899
7882513b
JL		 1900 ieee80211_tx_info_clear_status(txi);
1901
1902 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
1903 txi->status.rates[i].idx = tx_attempts[i].idx;
1904 txi->status.rates[i].count = tx_attempts[i].count;
1905 /*txi->status.rates[i].flags = 0;*/
1906 }
1907
1908 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
1909
1910 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
1911 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
1912 if (skb->len >= 16) {
1913 hdr = (struct ieee80211_hdr *) skb->data;
e8261171
JB		 1914 mac80211_hwsim_monitor_ack(txi->rate_driver_data[0],
1915 hdr->addr2);
7882513b 1916 }
06cf5c4c 1917 txi->flags |= IEEE80211_TX_STAT_ACK;
7882513b
JL		 1918 }
1919 ieee80211_tx_status_irqsafe(data2->hw, skb);
1920 return 0;
1921out:
1922 return -EINVAL;
1923
1924}
1925
1926static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
1927 struct genl_info *info)
1928{
1929
e8261171 1930 struct mac80211_hwsim_data *data2;
7882513b 1931 struct ieee80211_rx_status rx_status;
9ddd12af 1932 const u8 *dst;
7882513b 1933 int frame_data_len;
9ddd12af 1934 void *frame_data;
7882513b
JL		 1935 struct sk_buff *skb = NULL;
1936
1937 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
e8261171
JB		 1938 !info->attrs[HWSIM_ATTR_FRAME] ||
1939 !info->attrs[HWSIM_ATTR_RX_RATE] ||
1940 !info->attrs[HWSIM_ATTR_SIGNAL])
7882513b
JL		 1941 goto out;
1942
9ddd12af 1943 dst = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
7882513b 1944 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
9ddd12af 1945 frame_data = (void *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
7882513b
JL		 1946
1947 /* Allocate new skb here */
1948 skb = alloc_skb(frame_data_len, GFP_KERNEL);
1949 if (skb == NULL)
1950 goto err;
1951
9ddd12af 1952 if (frame_data_len > IEEE80211_MAX_DATA_LEN)
7882513b
JL		 1953 goto err;
1954
9ddd12af
JB		 1955 /* Copy the data */
1956 memcpy(skb_put(skb, frame_data_len), frame_data, frame_data_len);
7882513b 1957
9ddd12af
JB		 1958 data2 = get_hwsim_data_ref_from_addr(dst);
1959 if (!data2)
7882513b
JL		 1960 goto out;
1961
1962 /* check if radio is configured properly */
1963
e8261171 1964 if (data2->idle || !data2->started)
7882513b
JL		 1965 goto out;
1966
9ddd12af 1967 /* A frame is received from user space */
7882513b
JL		 1968 memset(&rx_status, 0, sizeof(rx_status));
1969 rx_status.freq = data2->channel->center_freq;
1970 rx_status.band = data2->channel->band;
1971 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
1972 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
1973
1974 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
1975 ieee80211_rx_irqsafe(data2->hw, skb);
1976
1977 return 0;
1978err:
c393862f 1979 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 1980 goto out;
1981out:
1982 dev_kfree_skb(skb);
1983 return -EINVAL;
1984}
1985
1986static int hwsim_register_received_nl(struct sk_buff *skb_2,
1987 struct genl_info *info)
1988{
15e47304 1989 wmediumd_portid = info->snd_portid;
7882513b
JL		 1990
1991 printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
15e47304 1992 "switching to wmediumd mode with pid %d\n", info->snd_portid);
7882513b
JL		 1993
1994 return 0;
7882513b
JL		 1995}
1996
1997/* Generic Netlink operations array */
4534de83 1998static const struct genl_ops hwsim_ops[] = {
7882513b
JL		 1999 {
2000 .cmd = HWSIM_CMD_REGISTER,
2001 .policy = hwsim_genl_policy,
2002 .doit = hwsim_register_received_nl,
2003 .flags = GENL_ADMIN_PERM,
2004 },
2005 {
2006 .cmd = HWSIM_CMD_FRAME,
2007 .policy = hwsim_genl_policy,
2008 .doit = hwsim_cloned_frame_received_nl,
2009 },
2010 {
2011 .cmd = HWSIM_CMD_TX_INFO_FRAME,
2012 .policy = hwsim_genl_policy,
2013 .doit = hwsim_tx_info_frame_received_nl,
2014 },
2015};
2016
2017static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
2018 unsigned long state,
2019 void *_notify)
2020{
2021 struct netlink_notify *notify = _notify;
2022
2023 if (state != NETLINK_URELEASE)
2024 return NOTIFY_DONE;
2025
15e47304 2026 if (notify->portid == wmediumd_portid) {
7882513b
JL		 2027 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
2028 " socket, switching to perfect channel medium\n");
15e47304 2029 wmediumd_portid = 0;
7882513b
JL		 2030 }
2031 return NOTIFY_DONE;
2032
2033}
2034
2035static struct notifier_block hwsim_netlink_notifier = {
2036 .notifier_call = mac80211_hwsim_netlink_notify,
2037};
2038
2039static int hwsim_init_netlink(void)
2040{
2041 int rc;
e8261171
JB		 2042
2043 /* userspace test API hasn't been adjusted for multi-channel */
2044 if (channels > 1)
2045 return 0;
2046
7882513b
JL		 2047 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
2048
c53ed742 2049 rc = genl_register_family_with_ops(&hwsim_genl_family, hwsim_ops);
7882513b
JL		 2050 if (rc)
2051 goto failure;
2052
2053 rc = netlink_register_notifier(&hwsim_netlink_notifier);
2054 if (rc)
2055 goto failure;
2056
2057 return 0;
2058
2059failure:
c393862f 2060 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
7882513b
JL		 2061 return -EINVAL;
2062}
2063
2064static void hwsim_exit_netlink(void)
2065{
e8261171
JB		 2066 /* userspace test API hasn't been adjusted for multi-channel */
2067 if (channels > 1)
2068 return;
2069
7882513b
JL		 2070 /* unregister the notifier */
2071 netlink_unregister_notifier(&hwsim_netlink_notifier);
2072 /* unregister the family */
cf7a6b2d 2073 genl_unregister_family(&hwsim_genl_family);
7882513b
JL		 2074}
2075
1ae2fc25
JB		 2076static const struct ieee80211_iface_limit hwsim_if_limits[] = {
2077 { .max = 1, .types = BIT(NL80211_IFTYPE_ADHOC) },
2078 { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) |
2079 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2080#ifdef CONFIG_MAC80211_MESH
2081 BIT(NL80211_IFTYPE_MESH_POINT) |
2082#endif
2083 BIT(NL80211_IFTYPE_AP) |
2084 BIT(NL80211_IFTYPE_P2P_GO) },
8b3d1cc2 2085 { .max = 1, .types = BIT(NL80211_IFTYPE_P2P_DEVICE) },
1ae2fc25
JB		 2086};
2087
bba05e3d
JD		 2088static const struct ieee80211_iface_limit hwsim_if_dfs_limits[] = {
2089 { .max = 8, .types = BIT(NL80211_IFTYPE_AP) },
2090};
2091
38ed5048 2092static const struct ieee80211_iface_combination hwsim_if_comb[] = {
bba05e3d
JD		 2093 {
2094 .limits = hwsim_if_limits,
2095 .n_limits = ARRAY_SIZE(hwsim_if_limits),
2096 .max_interfaces = 2048,
2097 .num_different_channels = 1,
2098 },
2099 {
2100 .limits = hwsim_if_dfs_limits,
2101 .n_limits = ARRAY_SIZE(hwsim_if_dfs_limits),
2102 .max_interfaces = 8,
2103 .num_different_channels = 1,
2104 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
2105 BIT(NL80211_CHAN_WIDTH_20) |
2106 BIT(NL80211_CHAN_WIDTH_40) |
2107 BIT(NL80211_CHAN_WIDTH_80) |
2108 BIT(NL80211_CHAN_WIDTH_160),
2109 }
1ae2fc25
JB		 2110};
2111
2d68992b 2112static int __init mac80211_hwsim_create_radio(void)
acc1e7a3 2113{
f39c2bfa 2114 int err;
acc1e7a3
JM		 2115 u8 addr[ETH_ALEN];
2116 struct mac80211_hwsim_data *data;
2117 struct ieee80211_hw *hw;
22cad735 2118 enum ieee80211_band band;
f39c2bfa 2119 const struct ieee80211_ops *ops = &mac80211_hwsim_ops;
2d68992b
JB		 2120 int idx;
2121
2122 spin_lock_bh(&hwsim_radio_lock);
2123 idx = hwsim_radio_idx++;
2124 spin_unlock_bh(&hwsim_radio_lock);
f39c2bfa
JB		 2125
2126 if (channels > 1)
2127 ops = &mac80211_hwsim_mchan_ops;
2128 hw = ieee80211_alloc_hw(sizeof(*data), ops);
2129 if (!hw) {
2130 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw failed\n");
2131 err = -ENOMEM;
2132 goto failed;
2133 }
2134 data = hw->priv;
2135 data->hw = hw;
2136
2137 data->dev = device_create(hwsim_class, NULL, 0, hw, "hwsim%d", idx);
2138 if (IS_ERR(data->dev)) {
2139 printk(KERN_DEBUG
2140 "mac80211_hwsim: device_create failed (%ld)\n",
2141 PTR_ERR(data->dev));
2142 err = -ENOMEM;
2143 goto failed_drvdata;
2144 }
2145 data->dev->driver = &mac80211_hwsim_driver.driver;
2146 err = device_bind_driver(data->dev);
2147 if (err != 0) {
2148 printk(KERN_DEBUG "mac80211_hwsim: device_bind_driver failed (%d)\n",
2149 err);
2150 goto failed_hw;
2151 }
2152
2153 skb_queue_head_init(&data->pending);
2154
2155 SET_IEEE80211_DEV(hw, data->dev);
2156 memset(addr, 0, ETH_ALEN);
2157 addr[0] = 0x02;
2158 addr[3] = idx >> 8;
2159 addr[4] = idx;
2160 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
2161 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
2162 data->addresses[1].addr[0] |= 0x40;
2163 hw->wiphy->n_addresses = 2;
2164 hw->wiphy->addresses = data->addresses;
2165
2166 data->channels = channels;
2167
2168 if (data->channels > 1) {
2169 hw->wiphy->max_scan_ssids = 255;
2170 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
2171 hw->wiphy->max_remain_on_channel_duration = 1000;
2172 /* For channels > 1 DFS is not allowed */
2173 hw->wiphy->n_iface_combinations = 1;
2174 hw->wiphy->iface_combinations = &data->if_combination;
2175 data->if_combination = hwsim_if_comb[0];
2176 data->if_combination.num_different_channels = data->channels;
2177 } else {
2178 hw->wiphy->iface_combinations = hwsim_if_comb;
2179 hw->wiphy->n_iface_combinations = ARRAY_SIZE(hwsim_if_comb);
2180 }
2181
2182 INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
2183 INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
2184
2185 hw->queues = 5;
2186 hw->offchannel_tx_hw_queue = 4;
2187 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2188 BIT(NL80211_IFTYPE_AP) |
2189 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2190 BIT(NL80211_IFTYPE_P2P_GO) |
2191 BIT(NL80211_IFTYPE_ADHOC) |
2192 BIT(NL80211_IFTYPE_MESH_POINT) |
2193 BIT(NL80211_IFTYPE_P2P_DEVICE);
2194
2195 hw->flags = IEEE80211_HW_MFP_CAPABLE |
2196 IEEE80211_HW_SIGNAL_DBM |
2197 IEEE80211_HW_SUPPORTS_STATIC_SMPS |
2198 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
2199 IEEE80211_HW_AMPDU_AGGREGATION |
2200 IEEE80211_HW_WANT_MONITOR_VIF |
2201 IEEE80211_HW_QUEUE_CONTROL |
2202 IEEE80211_HW_SUPPORTS_HT_CCK_RATES;
2203 if (rctbl)
2204 hw->flags |= IEEE80211_HW_SUPPORTS_RC_TABLE;
2205
2206 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2207 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
2208 WIPHY_FLAG_AP_UAPSD;
2209 hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR;
2210
2211 /* ask mac80211 to reserve space for magic */
2212 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
2213 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
2214 hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
2215
2216 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
2217 sizeof(hwsim_channels_2ghz));
2218 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
2219 sizeof(hwsim_channels_5ghz));
2220 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
2221
2222 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
2223 struct ieee80211_supported_band *sband = &data->bands[band];
2224 switch (band) {
2225 case IEEE80211_BAND_2GHZ:
2226 sband->channels = data->channels_2ghz;
2227 sband->n_channels = ARRAY_SIZE(hwsim_channels_2ghz);
2228 sband->bitrates = data->rates;
2229 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
2230 break;
2231 case IEEE80211_BAND_5GHZ:
2232 sband->channels = data->channels_5ghz;
2233 sband->n_channels = ARRAY_SIZE(hwsim_channels_5ghz);
2234 sband->bitrates = data->rates + 4;
2235 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
2236 break;
2237 default:
2238 continue;
2239 }
2240
2241 sband->ht_cap.ht_supported = true;
2242 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
2243 IEEE80211_HT_CAP_GRN_FLD |
2244 IEEE80211_HT_CAP_SGI_40 |
2245 IEEE80211_HT_CAP_DSSSCCK40;
2246 sband->ht_cap.ampdu_factor = 0x3;
2247 sband->ht_cap.ampdu_density = 0x6;
2248 memset(&sband->ht_cap.mcs, 0,
2249 sizeof(sband->ht_cap.mcs));
2250 sband->ht_cap.mcs.rx_mask[0] = 0xff;
2251 sband->ht_cap.mcs.rx_mask[1] = 0xff;
2252 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2253
2254 hw->wiphy->bands[band] = sband;
2255
2256 sband->vht_cap.vht_supported = true;
2257 sband->vht_cap.cap =
2258 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
2259 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
2260 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ |
2261 IEEE80211_VHT_CAP_RXLDPC |
2262 IEEE80211_VHT_CAP_SHORT_GI_80 |
2263 IEEE80211_VHT_CAP_SHORT_GI_160 |
2264 IEEE80211_VHT_CAP_TXSTBC |
2265 IEEE80211_VHT_CAP_RXSTBC_1 |
2266 IEEE80211_VHT_CAP_RXSTBC_2 |
2267 IEEE80211_VHT_CAP_RXSTBC_3 |
2268 IEEE80211_VHT_CAP_RXSTBC_4 |
2269 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
2270 sband->vht_cap.vht_mcs.rx_mcs_map =
2271 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_8 << 0 |
2272 IEEE80211_VHT_MCS_SUPPORT_0_8 << 2 |
2273 IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
2274 IEEE80211_VHT_MCS_SUPPORT_0_8 << 6 |
2275 IEEE80211_VHT_MCS_SUPPORT_0_8 << 8 |
2276 IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
2277 IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
2278 IEEE80211_VHT_MCS_SUPPORT_0_8 << 14);
2279 sband->vht_cap.vht_mcs.tx_mcs_map =
2280 sband->vht_cap.vht_mcs.rx_mcs_map;
2281 }
2282
2283 /* By default all radios belong to the first group */
2284 data->group = 1;
2285 mutex_init(&data->mutex);
2286
2287 /* Enable frame retransmissions for lossy channels */
2288 hw->max_rates = 4;
2289 hw->max_rate_tries = 11;
2290
2291 err = ieee80211_register_hw(hw);
2292 if (err < 0) {
2293 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_register_hw failed (%d)\n",
2294 err);
2295 goto failed_hw;
2296 }
2297
2298 wiphy_debug(hw->wiphy, "hwaddr %pM registered\n", hw->wiphy->perm_addr);
2299
2300 data->debugfs = debugfs_create_dir("hwsim", hw->wiphy->debugfsdir);
2301 debugfs_create_file("ps", 0666, data->debugfs, data, &hwsim_fops_ps);
2302 debugfs_create_file("group", 0666, data->debugfs, data,
2303 &hwsim_fops_group);
2304 if (data->channels == 1)
2305 debugfs_create_file("dfs_simulate_radar", 0222,
2306 data->debugfs,
2307 data, &hwsim_simulate_radar);
2308
2309 tasklet_hrtimer_init(&data->beacon_timer,
2310 mac80211_hwsim_beacon,
2311 CLOCK_MONOTONIC_RAW, HRTIMER_MODE_ABS);
2312
2313 spin_lock_bh(&hwsim_radio_lock);
2314 list_add_tail(&data->list, &hwsim_radios);
2315 spin_unlock_bh(&hwsim_radio_lock);
2316
2317 return 0;
2318
2319failed_hw:
2320 device_unregister(data->dev);
2321failed_drvdata:
2322 ieee80211_free_hw(hw);
2323failed:
2324 return err;
2325}
2326
2327static int __init init_mac80211_hwsim(void)
2328{
2329 int i, err;
acc1e7a3 2330
0e057d73 2331 if (radios < 1 || radios > 100)
acc1e7a3
JM		 2332 return -EINVAL;
2333
e8261171
JB		 2334 if (channels < 1)
2335 return -EINVAL;
2336
38ed5048
JB		 2337 mac80211_hwsim_mchan_ops = mac80211_hwsim_ops;
2338 mac80211_hwsim_mchan_ops.hw_scan = mac80211_hwsim_hw_scan;
2339 mac80211_hwsim_mchan_ops.cancel_hw_scan = mac80211_hwsim_cancel_hw_scan;
2340 mac80211_hwsim_mchan_ops.sw_scan_start = NULL;
2341 mac80211_hwsim_mchan_ops.sw_scan_complete = NULL;
2342 mac80211_hwsim_mchan_ops.remain_on_channel = mac80211_hwsim_roc;
2343 mac80211_hwsim_mchan_ops.cancel_remain_on_channel = mac80211_hwsim_croc;
2344 mac80211_hwsim_mchan_ops.add_chanctx = mac80211_hwsim_add_chanctx;
2345 mac80211_hwsim_mchan_ops.remove_chanctx = mac80211_hwsim_remove_chanctx;
2346 mac80211_hwsim_mchan_ops.change_chanctx = mac80211_hwsim_change_chanctx;
2347 mac80211_hwsim_mchan_ops.assign_vif_chanctx =
2348 mac80211_hwsim_assign_vif_chanctx;
2349 mac80211_hwsim_mchan_ops.unassign_vif_chanctx =
2350 mac80211_hwsim_unassign_vif_chanctx;
69068036 2351
0e057d73
JB		 2352 spin_lock_init(&hwsim_radio_lock);
2353 INIT_LIST_HEAD(&hwsim_radios);
acc1e7a3 2354
c07fe5ae 2355 err = platform_driver_register(&mac80211_hwsim_driver);
9ea92774
MP		 2356 if (err)
2357 return err;
2358
acc1e7a3 2359 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
9ea92774
MP		 2360 if (IS_ERR(hwsim_class)) {
2361 err = PTR_ERR(hwsim_class);
f39c2bfa 2362 goto out_unregister_driver;
9ea92774 2363 }
acc1e7a3 2364
0e057d73 2365 for (i = 0; i < radios; i++) {
2d68992b 2366 err = mac80211_hwsim_create_radio();
f39c2bfa
JB		 2367 if (err)
2368 goto out_free_radios;
acc1e7a3
JM		 2369 }
2370
2371 hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
bcdd8220
WY		 2372 if (hwsim_mon == NULL) {
2373 err = -ENOMEM;
f39c2bfa 2374 goto out_free_radios;
bcdd8220 2375 }
acc1e7a3 2376
7882513b 2377 rtnl_lock();
7882513b 2378 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
f39c2bfa
JB		 2379 if (err < 0) {
2380 rtnl_unlock();
2381 goto out_free_radios;
2382 }
7882513b
JL		 2383
2384 err = register_netdevice(hwsim_mon);
f39c2bfa
JB		 2385 if (err < 0) {
2386 rtnl_unlock();
2387 goto out_free_mon;
2388 }
7882513b
JL		 2389 rtnl_unlock();
2390
2391 err = hwsim_init_netlink();
2392 if (err < 0)
f39c2bfa 2393 goto out_free_mon;
7882513b 2394
acc1e7a3
JM		 2395 return 0;
2396
f39c2bfa 2397out_free_mon:
acc1e7a3 2398 free_netdev(hwsim_mon);
f39c2bfa 2399out_free_radios:
3a33cc10 2400 mac80211_hwsim_free();
f39c2bfa 2401out_unregister_driver:
c07fe5ae 2402 platform_driver_unregister(&mac80211_hwsim_driver);
acc1e7a3
JM		 2403 return err;
2404}
f8fffc7e 2405module_init(init_mac80211_hwsim);
acc1e7a3
JM		 2406
2407static void __exit exit_mac80211_hwsim(void)
2408{
0e057d73 2409 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
acc1e7a3 2410
7882513b
JL		 2411 hwsim_exit_netlink();
2412
acc1e7a3 2413 mac80211_hwsim_free();
5d416351 2414 unregister_netdev(hwsim_mon);
c07fe5ae 2415 platform_driver_unregister(&mac80211_hwsim_driver);
acc1e7a3 2416}
acc1e7a3 2417module_exit(exit_mac80211_hwsim);
Linux kernel - Deliverables
This page took 1.383175 seconds and 5 git commands to generate.