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Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
[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>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
8 */
9
10/*
11 * TODO:
12 * - IBSS mode simulation (Beacon transmission with competition for "air time")
acc1e7a3
JM		 13 * - RX filtering based on filter configuration (data->rx_filter)
14 */
15
0e057d73
JB		 16#include <linux/list.h>
17#include <linux/spinlock.h>
90e3012e
JB		 18#include <net/dst.h>
19#include <net/xfrm.h>
acc1e7a3
JM		 20#include <net/mac80211.h>
21#include <net/ieee80211_radiotap.h>
22#include <linux/if_arp.h>
23#include <linux/rtnetlink.h>
24#include <linux/etherdevice.h>
fc6971d4 25#include <linux/debugfs.h>
acc1e7a3
JM		 26
27MODULE_AUTHOR("Jouni Malinen");
28MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
29MODULE_LICENSE("GPL");
30
31static int radios = 2;
32module_param(radios, int, 0444);
33MODULE_PARM_DESC(radios, "Number of simulated radios");
34
4a5af9c2
LR		 35/**
36 * enum hwsim_regtest - the type of regulatory tests we offer
37 *
38 * These are the different values you can use for the regtest
39 * module parameter. This is useful to help test world roaming
40 * and the driver regulatory_hint() call and combinations of these.
41 * If you want to do specific alpha2 regulatory domain tests simply
42 * use the userspace regulatory request as that will be respected as
43 * well without the need of this module parameter. This is designed
44 * only for testing the driver regulatory request, world roaming
45 * and all possible combinations.
46 *
47 * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
48 * this is the default value.
49 * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
50 * hint, only one driver regulatory hint will be sent as such the
51 * secondary radios are expected to follow.
52 * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
53 * request with all radios reporting the same regulatory domain.
54 * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
55 * different regulatory domains requests. Expected behaviour is for
56 * an intersection to occur but each device will still use their
57 * respective regulatory requested domains. Subsequent radios will
58 * use the resulting intersection.
59 * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We acomplish
60 * this by using a custom beacon-capable regulatory domain for the first
61 * radio. All other device world roam.
62 * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
63 * domain requests. All radios will adhere to this custom world regulatory
64 * domain.
65 * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
66 * domain requests. The first radio will adhere to the first custom world
67 * regulatory domain, the second one to the second custom world regulatory
68 * domain. All other devices will world roam.
69 * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain
70 * settings, only the first radio will send a regulatory domain request
71 * and use strict settings. The rest of the radios are expected to follow.
72 * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
73 * settings. All radios will adhere to this.
74 * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
75 * domain settings, combined with secondary driver regulatory domain
76 * settings. The first radio will get a strict regulatory domain setting
77 * using the first driver regulatory request and the second radio will use
78 * non-strict settings using the second driver regulatory request. All
79 * other devices should follow the intersection created between the
80 * first two.
81 * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
82 * at least 6 radios for a complete test. We will test in this order:
83 * 1 - driver custom world regulatory domain
84 * 2 - second custom world regulatory domain
85 * 3 - first driver regulatory domain request
86 * 4 - second driver regulatory domain request
87 * 5 - strict regulatory domain settings using the third driver regulatory
88 * domain request
89 * 6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
90 * regulatory requests.
91 */
92enum hwsim_regtest {
93 HWSIM_REGTEST_DISABLED = 0,
94 HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1,
95 HWSIM_REGTEST_DRIVER_REG_ALL = 2,
96 HWSIM_REGTEST_DIFF_COUNTRY = 3,
97 HWSIM_REGTEST_WORLD_ROAM = 4,
98 HWSIM_REGTEST_CUSTOM_WORLD = 5,
99 HWSIM_REGTEST_CUSTOM_WORLD_2 = 6,
100 HWSIM_REGTEST_STRICT_FOLLOW = 7,
101 HWSIM_REGTEST_STRICT_ALL = 8,
102 HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9,
103 HWSIM_REGTEST_ALL = 10,
104};
105
106/* Set to one of the HWSIM_REGTEST_* values above */
107static int regtest = HWSIM_REGTEST_DISABLED;
108module_param(regtest, int, 0444);
109MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run");
110
111static const char *hwsim_alpha2s[] = {
112 "FI",
113 "AL",
114 "US",
115 "DE",
116 "JP",
117 "AL",
118};
119
120static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = {
121 .n_reg_rules = 4,
122 .alpha2 = "99",
123 .reg_rules = {
124 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
125 REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
126 REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
127 REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
128 }
129};
130
131static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = {
132 .n_reg_rules = 2,
133 .alpha2 = "99",
134 .reg_rules = {
135 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
136 REG_RULE(5725-10, 5850+10, 40, 0, 30,
137 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
138 }
139};
140
8aa21e6f
JB		 141struct hwsim_vif_priv {
142 u32 magic;
fc6971d4
JM		 143 u8 bssid[ETH_ALEN];
144 bool assoc;
145 u16 aid;
8aa21e6f
JB		 146};
147
148#define HWSIM_VIF_MAGIC 0x69537748
149
150static inline void hwsim_check_magic(struct ieee80211_vif *vif)
151{
152 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
153 WARN_ON(vp->magic != HWSIM_VIF_MAGIC);
154}
155
156static inline void hwsim_set_magic(struct ieee80211_vif *vif)
157{
158 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
159 vp->magic = HWSIM_VIF_MAGIC;
160}
161
162static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
163{
164 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
165 vp->magic = 0;
166}
acc1e7a3 167
81c06523
JB		 168struct hwsim_sta_priv {
169 u32 magic;
170};
171
172#define HWSIM_STA_MAGIC 0x6d537748
173
174static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
175{
176 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
5d6924ea 177 WARN_ON(sp->magic != HWSIM_STA_MAGIC);
81c06523
JB		 178}
179
180static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
181{
182 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
5d6924ea 183 sp->magic = HWSIM_STA_MAGIC;
81c06523
JB		 184}
185
186static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
187{
188 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
189 sp->magic = 0;
190}
191
acc1e7a3
JM		 192static struct class *hwsim_class;
193
acc1e7a3
JM		 194static struct net_device *hwsim_mon; /* global monitor netdev */
195
22cad735
LR		 196#define CHAN2G(_freq) { \
197 .band = IEEE80211_BAND_2GHZ, \
198 .center_freq = (_freq), \
199 .hw_value = (_freq), \
200 .max_power = 20, \
201}
202
203#define CHAN5G(_freq) { \
204 .band = IEEE80211_BAND_5GHZ, \
205 .center_freq = (_freq), \
206 .hw_value = (_freq), \
207 .max_power = 20, \
208}
209
210static const struct ieee80211_channel hwsim_channels_2ghz[] = {
211 CHAN2G(2412), /* Channel 1 */
212 CHAN2G(2417), /* Channel 2 */
213 CHAN2G(2422), /* Channel 3 */
214 CHAN2G(2427), /* Channel 4 */
215 CHAN2G(2432), /* Channel 5 */
216 CHAN2G(2437), /* Channel 6 */
217 CHAN2G(2442), /* Channel 7 */
218 CHAN2G(2447), /* Channel 8 */
219 CHAN2G(2452), /* Channel 9 */
220 CHAN2G(2457), /* Channel 10 */
221 CHAN2G(2462), /* Channel 11 */
222 CHAN2G(2467), /* Channel 12 */
223 CHAN2G(2472), /* Channel 13 */
224 CHAN2G(2484), /* Channel 14 */
225};
acc1e7a3 226
22cad735
LR		 227static const struct ieee80211_channel hwsim_channels_5ghz[] = {
228 CHAN5G(5180), /* Channel 36 */
229 CHAN5G(5200), /* Channel 40 */
230 CHAN5G(5220), /* Channel 44 */
231 CHAN5G(5240), /* Channel 48 */
232
233 CHAN5G(5260), /* Channel 52 */
234 CHAN5G(5280), /* Channel 56 */
235 CHAN5G(5300), /* Channel 60 */
236 CHAN5G(5320), /* Channel 64 */
237
238 CHAN5G(5500), /* Channel 100 */
239 CHAN5G(5520), /* Channel 104 */
240 CHAN5G(5540), /* Channel 108 */
241 CHAN5G(5560), /* Channel 112 */
242 CHAN5G(5580), /* Channel 116 */
243 CHAN5G(5600), /* Channel 120 */
244 CHAN5G(5620), /* Channel 124 */
245 CHAN5G(5640), /* Channel 128 */
246 CHAN5G(5660), /* Channel 132 */
247 CHAN5G(5680), /* Channel 136 */
248 CHAN5G(5700), /* Channel 140 */
249
250 CHAN5G(5745), /* Channel 149 */
251 CHAN5G(5765), /* Channel 153 */
252 CHAN5G(5785), /* Channel 157 */
253 CHAN5G(5805), /* Channel 161 */
254 CHAN5G(5825), /* Channel 165 */
acc1e7a3
JM		 255};
256
257static const struct ieee80211_rate hwsim_rates[] = {
258 { .bitrate = 10 },
259 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
260 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
261 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
262 { .bitrate = 60 },
263 { .bitrate = 90 },
264 { .bitrate = 120 },
265 { .bitrate = 180 },
266 { .bitrate = 240 },
267 { .bitrate = 360 },
268 { .bitrate = 480 },
269 { .bitrate = 540 }
270};
271
0e057d73
JB		 272static spinlock_t hwsim_radio_lock;
273static struct list_head hwsim_radios;
274
acc1e7a3 275struct mac80211_hwsim_data {
0e057d73
JB		 276 struct list_head list;
277 struct ieee80211_hw *hw;
acc1e7a3 278 struct device *dev;
22cad735
LR		 279 struct ieee80211_supported_band bands[2];
280 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
281 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
acc1e7a3
JM		 282 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
283
ef15aac6
JB		 284 struct mac_address addresses[2];
285
acc1e7a3 286 struct ieee80211_channel *channel;
acc1e7a3
JM		 287 unsigned long beacon_int; /* in jiffies unit */
288 unsigned int rx_filter;
70541839 289 bool started, idle;
acc1e7a3 290 struct timer_list beacon_timer;
fc6971d4
JM		 291 enum ps_mode {
292 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
293 } ps;
294 bool ps_poll_pending;
295 struct dentry *debugfs;
296 struct dentry *debugfs_ps;
73606d00
DW		 297
298 /*
299 * Only radios in the same group can communicate together (the
300 * channel has to match too). Each bit represents a group. A
301 * radio can be in more then one group.
302 */
303 u64 group;
304 struct dentry *debugfs_group;
acc1e7a3
JM		 305};
306
307
308struct hwsim_radiotap_hdr {
309 struct ieee80211_radiotap_header hdr;
310 u8 rt_flags;
311 u8 rt_rate;
312 __le16 rt_channel;
313 __le16 rt_chbitmask;
314} __attribute__ ((packed));
315
316
d0cf9c0d
SH		 317static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
318 struct net_device *dev)
acc1e7a3
JM		 319{
320 /* TODO: allow packet injection */
321 dev_kfree_skb(skb);
6ed10654 322 return NETDEV_TX_OK;
acc1e7a3
JM		 323}
324
325
326static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
327 struct sk_buff *tx_skb)
328{
329 struct mac80211_hwsim_data *data = hw->priv;
330 struct sk_buff *skb;
331 struct hwsim_radiotap_hdr *hdr;
332 u16 flags;
333 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
334 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
335
336 if (!netif_running(hwsim_mon))
337 return;
338
339 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
340 if (skb == NULL)
341 return;
342
343 hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
344 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
345 hdr->hdr.it_pad = 0;
346 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
f248f105
JM		 347 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
348 (1 << IEEE80211_RADIOTAP_RATE) |
349 (1 << IEEE80211_RADIOTAP_CHANNEL));
acc1e7a3
JM		 350 hdr->rt_flags = 0;
351 hdr->rt_rate = txrate->bitrate / 5;
df70b4ac 352 hdr->rt_channel = cpu_to_le16(data->channel->center_freq);
acc1e7a3
JM		 353 flags = IEEE80211_CHAN_2GHZ;
354 if (txrate->flags & IEEE80211_RATE_ERP_G)
355 flags |= IEEE80211_CHAN_OFDM;
356 else
357 flags |= IEEE80211_CHAN_CCK;
358 hdr->rt_chbitmask = cpu_to_le16(flags);
359
360 skb->dev = hwsim_mon;
361 skb_set_mac_header(skb, 0);
362 skb->ip_summed = CHECKSUM_UNNECESSARY;
363 skb->pkt_type = PACKET_OTHERHOST;
f248f105 364 skb->protocol = htons(ETH_P_802_2);
acc1e7a3
JM		 365 memset(skb->cb, 0, sizeof(skb->cb));
366 netif_rx(skb);
367}
368
369
6c085227
JM		 370static void mac80211_hwsim_monitor_ack(struct ieee80211_hw *hw, const u8 *addr)
371{
372 struct mac80211_hwsim_data *data = hw->priv;
373 struct sk_buff *skb;
374 struct hwsim_radiotap_hdr *hdr;
375 u16 flags;
376 struct ieee80211_hdr *hdr11;
377
378 if (!netif_running(hwsim_mon))
379 return;
380
381 skb = dev_alloc_skb(100);
382 if (skb == NULL)
383 return;
384
385 hdr = (struct hwsim_radiotap_hdr *) skb_put(skb, sizeof(*hdr));
386 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
387 hdr->hdr.it_pad = 0;
388 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
389 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
390 (1 << IEEE80211_RADIOTAP_CHANNEL));
391 hdr->rt_flags = 0;
392 hdr->rt_rate = 0;
393 hdr->rt_channel = cpu_to_le16(data->channel->center_freq);
394 flags = IEEE80211_CHAN_2GHZ;
395 hdr->rt_chbitmask = cpu_to_le16(flags);
396
397 hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
398 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
399 IEEE80211_STYPE_ACK);
400 hdr11->duration_id = cpu_to_le16(0);
401 memcpy(hdr11->addr1, addr, ETH_ALEN);
402
403 skb->dev = hwsim_mon;
404 skb_set_mac_header(skb, 0);
405 skb->ip_summed = CHECKSUM_UNNECESSARY;
406 skb->pkt_type = PACKET_OTHERHOST;
407 skb->protocol = htons(ETH_P_802_2);
408 memset(skb->cb, 0, sizeof(skb->cb));
409 netif_rx(skb);
410}
411
412
fc6971d4
JM		 413static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
414 struct sk_buff *skb)
415{
416 switch (data->ps) {
417 case PS_DISABLED:
418 return true;
419 case PS_ENABLED:
420 return false;
421 case PS_AUTO_POLL:
422 /* TODO: accept (some) Beacons by default and other frames only
423 * if pending PS-Poll has been sent */
424 return true;
425 case PS_MANUAL_POLL:
426 /* Allow unicast frames to own address if there is a pending
427 * PS-Poll */
428 if (data->ps_poll_pending &&
429 memcmp(data->hw->wiphy->perm_addr, skb->data + 4,
430 ETH_ALEN) == 0) {
431 data->ps_poll_pending = false;
432 return true;
433 }
434 return false;
435 }
436
437 return true;
438}
439
440
265dc7f0
JM		 441struct mac80211_hwsim_addr_match_data {
442 bool ret;
443 const u8 *addr;
444};
445
446static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
447 struct ieee80211_vif *vif)
448{
449 struct mac80211_hwsim_addr_match_data *md = data;
450 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
451 md->ret = true;
452}
453
454
455static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
456 const u8 *addr)
457{
458 struct mac80211_hwsim_addr_match_data md;
459
460 if (memcmp(addr, data->hw->wiphy->perm_addr, ETH_ALEN) == 0)
461 return true;
462
463 md.ret = false;
464 md.addr = addr;
465 ieee80211_iterate_active_interfaces_atomic(data->hw,
466 mac80211_hwsim_addr_iter,
467 &md);
468
469 return md.ret;
470}
471
472
0e057d73
JB		 473static bool mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
474 struct sk_buff *skb)
acc1e7a3 475{
0e057d73
JB		 476 struct mac80211_hwsim_data *data = hw->priv, *data2;
477 bool ack = false;
e36cfdc9 478 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
acc1e7a3 479 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
e36cfdc9 480 struct ieee80211_rx_status rx_status;
acc1e7a3 481
70541839
JM		 482 if (data->idle) {
483 printk(KERN_DEBUG "%s: Trying to TX when idle - reject\n",
484 wiphy_name(hw->wiphy));
485 return false;
486 }
487
acc1e7a3
JM		 488 memset(&rx_status, 0, sizeof(rx_status));
489 /* TODO: set mactime */
490 rx_status.freq = data->channel->center_freq;
491 rx_status.band = data->channel->band;
e6a9854b 492 rx_status.rate_idx = info->control.rates[0].idx;
4b14c96d
JB		 493 /* TODO: simulate real signal strength (and optional packet loss) */
494 rx_status.signal = -50;
acc1e7a3 495
fc6971d4
JM		 496 if (data->ps != PS_DISABLED)
497 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
498
90e3012e
JB		 499 /* release the skb's source info */
500 skb_orphan(skb);
c0acf38e 501 skb_dst_drop(skb);
90e3012e
JB		 502 skb->mark = 0;
503 secpath_reset(skb);
504 nf_reset(skb);
505
acc1e7a3 506 /* Copy skb to all enabled radios that are on the current frequency */
0e057d73
JB		 507 spin_lock(&hwsim_radio_lock);
508 list_for_each_entry(data2, &hwsim_radios, list) {
acc1e7a3
JM		 509 struct sk_buff *nskb;
510
0e057d73 511 if (data == data2)
acc1e7a3 512 continue;
0e057d73 513
70541839
JM		 514 if (data2->idle || !data2->started ||
515 !hwsim_ps_rx_ok(data2, skb) ||
4ff17667 516 !data->channel || !data2->channel ||
73606d00
DW		 517 data->channel->center_freq != data2->channel->center_freq ||
518 !(data->group & data2->group))
acc1e7a3
JM		 519 continue;
520
521 nskb = skb_copy(skb, GFP_ATOMIC);
522 if (nskb == NULL)
523 continue;
524
265dc7f0 525 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
0e057d73 526 ack = true;
f1d58c25
JB		 527 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
528 ieee80211_rx_irqsafe(data2->hw, nskb);
acc1e7a3 529 }
0e057d73 530 spin_unlock(&hwsim_radio_lock);
acc1e7a3 531
e36cfdc9
JM		 532 return ack;
533}
534
535
536static int mac80211_hwsim_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
537{
0e057d73 538 bool ack;
e36cfdc9
JM		 539 struct ieee80211_tx_info *txi;
540
541 mac80211_hwsim_monitor_rx(hw, skb);
542
543 if (skb->len < 10) {
544 /* Should not happen; just a sanity check for addr1 use */
545 dev_kfree_skb(skb);
546 return NETDEV_TX_OK;
547 }
548
e36cfdc9 549 ack = mac80211_hwsim_tx_frame(hw, skb);
6c085227
JM		 550 if (ack && skb->len >= 16) {
551 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
552 mac80211_hwsim_monitor_ack(hw, hdr->addr2);
553 }
e36cfdc9 554
acc1e7a3 555 txi = IEEE80211_SKB_CB(skb);
8aa21e6f 556
25d834e1
JB		 557 if (txi->control.vif)
558 hwsim_check_magic(txi->control.vif);
81c06523
JB		 559 if (txi->control.sta)
560 hwsim_check_sta_magic(txi->control.sta);
8aa21e6f 561
e6a9854b
JB		 562 ieee80211_tx_info_clear_status(txi);
563 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
564 txi->flags |= IEEE80211_TX_STAT_ACK;
acc1e7a3
JM		 565 ieee80211_tx_status_irqsafe(hw, skb);
566 return NETDEV_TX_OK;
567}
568
569
570static int mac80211_hwsim_start(struct ieee80211_hw *hw)
571{
572 struct mac80211_hwsim_data *data = hw->priv;
573 printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
574 data->started = 1;
575 return 0;
576}
577
578
579static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
580{
581 struct mac80211_hwsim_data *data = hw->priv;
582 data->started = 0;
ab1ef980 583 del_timer(&data->beacon_timer);
acc1e7a3
JM		 584 printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
585}
586
587
588static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
1ed32e4f 589 struct ieee80211_vif *vif)
acc1e7a3 590{
e174961c 591 printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%pM)\n",
1ed32e4f
JB		 592 wiphy_name(hw->wiphy), __func__, vif->type,
593 vif->addr);
594 hwsim_set_magic(vif);
acc1e7a3
JM		 595 return 0;
596}
597
598
599static void mac80211_hwsim_remove_interface(
1ed32e4f 600 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
acc1e7a3 601{
e174961c 602 printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%pM)\n",
1ed32e4f
JB		 603 wiphy_name(hw->wiphy), __func__, vif->type,
604 vif->addr);
605 hwsim_check_magic(vif);
606 hwsim_clear_magic(vif);
acc1e7a3
JM		 607}
608
609
610static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
611 struct ieee80211_vif *vif)
612{
613 struct ieee80211_hw *hw = arg;
acc1e7a3 614 struct sk_buff *skb;
acc1e7a3
JM		 615 struct ieee80211_tx_info *info;
616
8aa21e6f
JB		 617 hwsim_check_magic(vif);
618
55b39619
AY		 619 if (vif->type != NL80211_IFTYPE_AP &&
620 vif->type != NL80211_IFTYPE_MESH_POINT)
acc1e7a3
JM		 621 return;
622
623 skb = ieee80211_beacon_get(hw, vif);
624 if (skb == NULL)
625 return;
626 info = IEEE80211_SKB_CB(skb);
627
628 mac80211_hwsim_monitor_rx(hw, skb);
e36cfdc9 629 mac80211_hwsim_tx_frame(hw, skb);
acc1e7a3
JM		 630 dev_kfree_skb(skb);
631}
632
633
634static void mac80211_hwsim_beacon(unsigned long arg)
635{
636 struct ieee80211_hw *hw = (struct ieee80211_hw *) arg;
637 struct mac80211_hwsim_data *data = hw->priv;
638
4c4c671a 639 if (!data->started)
acc1e7a3
JM		 640 return;
641
f248f105
JM		 642 ieee80211_iterate_active_interfaces_atomic(
643 hw, mac80211_hwsim_beacon_tx, hw);
acc1e7a3
JM		 644
645 data->beacon_timer.expires = jiffies + data->beacon_int;
646 add_timer(&data->beacon_timer);
647}
648
649
e8975581 650static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
acc1e7a3
JM		 651{
652 struct mac80211_hwsim_data *data = hw->priv;
e8975581 653 struct ieee80211_conf *conf = &hw->conf;
0f78231b
JB		 654 static const char *chantypes[4] = {
655 [NL80211_CHAN_NO_HT] = "noht",
656 [NL80211_CHAN_HT20] = "ht20",
657 [NL80211_CHAN_HT40MINUS] = "ht40-",
658 [NL80211_CHAN_HT40PLUS] = "ht40+",
659 };
660 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
661 [IEEE80211_SMPS_AUTOMATIC] = "auto",
662 [IEEE80211_SMPS_OFF] = "off",
663 [IEEE80211_SMPS_STATIC] = "static",
664 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
665 };
666
667 printk(KERN_DEBUG "%s:%s (freq=%d/%s idle=%d ps=%d smps=%s)\n",
acc1e7a3 668 wiphy_name(hw->wiphy), __func__,
4c4c671a 669 conf->channel->center_freq,
0f78231b 670 chantypes[conf->channel_type],
5cff20e6 671 !!(conf->flags & IEEE80211_CONF_IDLE),
0f78231b
JB		 672 !!(conf->flags & IEEE80211_CONF_PS),
673 smps_modes[conf->smps_mode]);
acc1e7a3 674
70541839
JM		 675 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
676
acc1e7a3 677 data->channel = conf->channel;
4c4c671a 678 if (!data->started || !data->beacon_int)
acc1e7a3
JM		 679 del_timer(&data->beacon_timer);
680 else
681 mod_timer(&data->beacon_timer, jiffies + data->beacon_int);
682
683 return 0;
684}
685
686
687static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
688 unsigned int changed_flags,
3ac64bee 689 unsigned int *total_flags,u64 multicast)
acc1e7a3
JM		 690{
691 struct mac80211_hwsim_data *data = hw->priv;
692
693 printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
694
695 data->rx_filter = 0;
696 if (*total_flags & FIF_PROMISC_IN_BSS)
697 data->rx_filter |= FIF_PROMISC_IN_BSS;
698 if (*total_flags & FIF_ALLMULTI)
699 data->rx_filter |= FIF_ALLMULTI;
700
701 *total_flags = data->rx_filter;
702}
703
8aa21e6f
JB		 704static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
705 struct ieee80211_vif *vif,
706 struct ieee80211_bss_conf *info,
707 u32 changed)
708{
fc6971d4 709 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
57c4d7b4 710 struct mac80211_hwsim_data *data = hw->priv;
fc6971d4 711
8aa21e6f 712 hwsim_check_magic(vif);
fe63bfa3
JM		 713
714 printk(KERN_DEBUG "%s:%s(changed=0x%x)\n",
715 wiphy_name(hw->wiphy), __func__, changed);
716
2d0ddec5
JB		 717 if (changed & BSS_CHANGED_BSSID) {
718 printk(KERN_DEBUG "%s:%s: BSSID changed: %pM\n",
719 wiphy_name(hw->wiphy), __func__,
720 info->bssid);
721 memcpy(vp->bssid, info->bssid, ETH_ALEN);
722 }
723
fe63bfa3
JM		 724 if (changed & BSS_CHANGED_ASSOC) {
725 printk(KERN_DEBUG " %s: ASSOC: assoc=%d aid=%d\n",
726 wiphy_name(hw->wiphy), info->assoc, info->aid);
fc6971d4
JM		 727 vp->assoc = info->assoc;
728 vp->aid = info->aid;
fe63bfa3
JM		 729 }
730
57c4d7b4
JB		 731 if (changed & BSS_CHANGED_BEACON_INT) {
732 printk(KERN_DEBUG " %s: BCNINT: %d\n",
733 wiphy_name(hw->wiphy), info->beacon_int);
734 data->beacon_int = 1024 * info->beacon_int / 1000 * HZ / 1000;
d91f190c 735 if (WARN_ON(!data->beacon_int))
57c4d7b4 736 data->beacon_int = 1;
ffed1307
JM		 737 if (data->started)
738 mod_timer(&data->beacon_timer,
739 jiffies + data->beacon_int);
57c4d7b4
JB		 740 }
741
fe63bfa3
JM		 742 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
743 printk(KERN_DEBUG " %s: ERP_CTS_PROT: %d\n",
744 wiphy_name(hw->wiphy), info->use_cts_prot);
745 }
746
747 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
748 printk(KERN_DEBUG " %s: ERP_PREAMBLE: %d\n",
749 wiphy_name(hw->wiphy), info->use_short_preamble);
750 }
751
752 if (changed & BSS_CHANGED_ERP_SLOT) {
753 printk(KERN_DEBUG " %s: ERP_SLOT: %d\n",
754 wiphy_name(hw->wiphy), info->use_short_slot);
755 }
756
757 if (changed & BSS_CHANGED_HT) {
094d05dc 758 printk(KERN_DEBUG " %s: HT: op_mode=0x%x\n",
fe63bfa3 759 wiphy_name(hw->wiphy),
9ed6bcce 760 info->ht_operation_mode);
fe63bfa3
JM		 761 }
762
763 if (changed & BSS_CHANGED_BASIC_RATES) {
764 printk(KERN_DEBUG " %s: BASIC_RATES: 0x%llx\n",
765 wiphy_name(hw->wiphy),
766 (unsigned long long) info->basic_rates);
767 }
8aa21e6f
JB		 768}
769
770static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
771 struct ieee80211_vif *vif,
17741cdc
JB		 772 enum sta_notify_cmd cmd,
773 struct ieee80211_sta *sta)
8aa21e6f
JB		 774{
775 hwsim_check_magic(vif);
81c06523
JB		 776 switch (cmd) {
777 case STA_NOTIFY_ADD:
778 hwsim_set_sta_magic(sta);
779 break;
780 case STA_NOTIFY_REMOVE:
781 hwsim_clear_sta_magic(sta);
782 break;
89fad578
CL		 783 case STA_NOTIFY_SLEEP:
784 case STA_NOTIFY_AWAKE:
785 /* TODO: make good use of these flags */
786 break;
81c06523
JB		 787 }
788}
789
790static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
791 struct ieee80211_sta *sta,
792 bool set)
793{
794 hwsim_check_sta_magic(sta);
795 return 0;
8aa21e6f 796}
acc1e7a3 797
1e898ff8
JM		 798static int mac80211_hwsim_conf_tx(
799 struct ieee80211_hw *hw, u16 queue,
800 const struct ieee80211_tx_queue_params *params)
801{
802 printk(KERN_DEBUG "%s:%s (queue=%d txop=%d cw_min=%d cw_max=%d "
803 "aifs=%d)\n",
804 wiphy_name(hw->wiphy), __func__, queue,
805 params->txop, params->cw_min, params->cw_max, params->aifs);
806 return 0;
807}
808
aff89a9b
JB		 809#ifdef CONFIG_NL80211_TESTMODE
810/*
811 * This section contains example code for using netlink
812 * attributes with the testmode command in nl80211.
813 */
814
815/* These enums need to be kept in sync with userspace */
816enum hwsim_testmode_attr {
817 __HWSIM_TM_ATTR_INVALID = 0,
818 HWSIM_TM_ATTR_CMD = 1,
819 HWSIM_TM_ATTR_PS = 2,
820
821 /* keep last */
822 __HWSIM_TM_ATTR_AFTER_LAST,
823 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
824};
825
826enum hwsim_testmode_cmd {
827 HWSIM_TM_CMD_SET_PS = 0,
828 HWSIM_TM_CMD_GET_PS = 1,
829};
830
831static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
832 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
833 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
834};
835
836static int hwsim_fops_ps_write(void *dat, u64 val);
837
5bc38193
JB		 838static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
839 void *data, int len)
aff89a9b
JB		 840{
841 struct mac80211_hwsim_data *hwsim = hw->priv;
842 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
843 struct sk_buff *skb;
844 int err, ps;
845
846 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
847 hwsim_testmode_policy);
848 if (err)
849 return err;
850
851 if (!tb[HWSIM_TM_ATTR_CMD])
852 return -EINVAL;
853
854 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
855 case HWSIM_TM_CMD_SET_PS:
856 if (!tb[HWSIM_TM_ATTR_PS])
857 return -EINVAL;
858 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
859 return hwsim_fops_ps_write(hwsim, ps);
860 case HWSIM_TM_CMD_GET_PS:
861 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
862 nla_total_size(sizeof(u32)));
863 if (!skb)
864 return -ENOMEM;
865 NLA_PUT_U32(skb, HWSIM_TM_ATTR_PS, hwsim->ps);
866 return cfg80211_testmode_reply(skb);
867 default:
868 return -EOPNOTSUPP;
869 }
870
871 nla_put_failure:
872 kfree_skb(skb);
873 return -ENOBUFS;
874}
875#endif
876
8b73d13a
JB		 877static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
878 struct ieee80211_vif *vif,
879 enum ieee80211_ampdu_mlme_action action,
880 struct ieee80211_sta *sta, u16 tid, u16 *ssn)
881{
882 switch (action) {
883 case IEEE80211_AMPDU_TX_START:
884 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
885 break;
886 case IEEE80211_AMPDU_TX_STOP:
887 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
888 break;
889 case IEEE80211_AMPDU_TX_OPERATIONAL:
890 break;
891 case IEEE80211_AMPDU_RX_START:
892 case IEEE80211_AMPDU_RX_STOP:
893 break;
894 default:
895 return -EOPNOTSUPP;
896 }
897
898 return 0;
899}
900
a80f7c0b
JB		 901static void mac80211_hwsim_flush(struct ieee80211_hw *hw, bool drop)
902{
903 /*
904 * In this special case, there's nothing we need to
905 * do because hwsim does transmission synchronously.
906 * In the future, when it does transmissions via
907 * userspace, we may need to do something.
908 */
909}
910
8b73d13a 911
acc1e7a3
JM		 912static const struct ieee80211_ops mac80211_hwsim_ops =
913{
914 .tx = mac80211_hwsim_tx,
915 .start = mac80211_hwsim_start,
916 .stop = mac80211_hwsim_stop,
917 .add_interface = mac80211_hwsim_add_interface,
918 .remove_interface = mac80211_hwsim_remove_interface,
919 .config = mac80211_hwsim_config,
920 .configure_filter = mac80211_hwsim_configure_filter,
8aa21e6f
JB		 921 .bss_info_changed = mac80211_hwsim_bss_info_changed,
922 .sta_notify = mac80211_hwsim_sta_notify,
81c06523 923 .set_tim = mac80211_hwsim_set_tim,
1e898ff8 924 .conf_tx = mac80211_hwsim_conf_tx,
aff89a9b 925 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
8b73d13a 926 .ampdu_action = mac80211_hwsim_ampdu_action,
a80f7c0b 927 .flush = mac80211_hwsim_flush,
acc1e7a3
JM		 928};
929
930
931static void mac80211_hwsim_free(void)
932{
0e057d73 933 struct list_head tmplist, *i, *tmp;
e603d9d8 934 struct mac80211_hwsim_data *data, *tmpdata;
0e057d73
JB		 935
936 INIT_LIST_HEAD(&tmplist);
937
938 spin_lock_bh(&hwsim_radio_lock);
939 list_for_each_safe(i, tmp, &hwsim_radios)
940 list_move(i, &tmplist);
941 spin_unlock_bh(&hwsim_radio_lock);
942
e603d9d8 943 list_for_each_entry_safe(data, tmpdata, &tmplist, list) {
73606d00 944 debugfs_remove(data->debugfs_group);
fc6971d4
JM		 945 debugfs_remove(data->debugfs_ps);
946 debugfs_remove(data->debugfs);
0e057d73
JB		 947 ieee80211_unregister_hw(data->hw);
948 device_unregister(data->dev);
949 ieee80211_free_hw(data->hw);
acc1e7a3 950 }
acc1e7a3
JM		 951 class_destroy(hwsim_class);
952}
953
954
955static struct device_driver mac80211_hwsim_driver = {
956 .name = "mac80211_hwsim"
957};
958
98d2faae
SH		 959static const struct net_device_ops hwsim_netdev_ops = {
960 .ndo_start_xmit = hwsim_mon_xmit,
961 .ndo_change_mtu = eth_change_mtu,
962 .ndo_set_mac_address = eth_mac_addr,
963 .ndo_validate_addr = eth_validate_addr,
964};
acc1e7a3
JM		 965
966static void hwsim_mon_setup(struct net_device *dev)
967{
98d2faae 968 dev->netdev_ops = &hwsim_netdev_ops;
acc1e7a3
JM		 969 dev->destructor = free_netdev;
970 ether_setup(dev);
971 dev->tx_queue_len = 0;
972 dev->type = ARPHRD_IEEE80211_RADIOTAP;
973 memset(dev->dev_addr, 0, ETH_ALEN);
974 dev->dev_addr[0] = 0x12;
975}
976
977
fc6971d4
JM		 978static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
979{
980 struct mac80211_hwsim_data *data = dat;
981 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
fc6971d4
JM		 982 struct sk_buff *skb;
983 struct ieee80211_pspoll *pspoll;
984
985 if (!vp->assoc)
986 return;
987
b235507c
JL		 988 printk(KERN_DEBUG "%s:%s: send PS-Poll to %pM for aid %d\n",
989 wiphy_name(data->hw->wiphy), __func__, vp->bssid, vp->aid);
fc6971d4
JM		 990
991 skb = dev_alloc_skb(sizeof(*pspoll));
992 if (!skb)
993 return;
994 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
995 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
996 IEEE80211_STYPE_PSPOLL |
997 IEEE80211_FCTL_PM);
998 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
999 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
1000 memcpy(pspoll->ta, mac, ETH_ALEN);
4c4c671a 1001 if (!mac80211_hwsim_tx_frame(data->hw, skb))
fc6971d4
JM		 1002 printk(KERN_DEBUG "%s: PS-Poll frame not ack'ed\n", __func__);
1003 dev_kfree_skb(skb);
1004}
1005
1006
1007static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
1008 struct ieee80211_vif *vif, int ps)
1009{
1010 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
fc6971d4
JM		 1011 struct sk_buff *skb;
1012 struct ieee80211_hdr *hdr;
1013
1014 if (!vp->assoc)
1015 return;
1016
b235507c
JL		 1017 printk(KERN_DEBUG "%s:%s: send data::nullfunc to %pM ps=%d\n",
1018 wiphy_name(data->hw->wiphy), __func__, vp->bssid, ps);
fc6971d4
JM		 1019
1020 skb = dev_alloc_skb(sizeof(*hdr));
1021 if (!skb)
1022 return;
1023 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
1024 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1025 IEEE80211_STYPE_NULLFUNC |
1026 (ps ? IEEE80211_FCTL_PM : 0));
1027 hdr->duration_id = cpu_to_le16(0);
1028 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
1029 memcpy(hdr->addr2, mac, ETH_ALEN);
1030 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
4c4c671a 1031 if (!mac80211_hwsim_tx_frame(data->hw, skb))
fc6971d4
JM		 1032 printk(KERN_DEBUG "%s: nullfunc frame not ack'ed\n", __func__);
1033 dev_kfree_skb(skb);
1034}
1035
1036
1037static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
1038 struct ieee80211_vif *vif)
1039{
1040 struct mac80211_hwsim_data *data = dat;
1041 hwsim_send_nullfunc(data, mac, vif, 1);
1042}
1043
1044
1045static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
1046 struct ieee80211_vif *vif)
1047{
1048 struct mac80211_hwsim_data *data = dat;
1049 hwsim_send_nullfunc(data, mac, vif, 0);
1050}
1051
1052
1053static int hwsim_fops_ps_read(void *dat, u64 *val)
1054{
1055 struct mac80211_hwsim_data *data = dat;
1056 *val = data->ps;
1057 return 0;
1058}
1059
1060static int hwsim_fops_ps_write(void *dat, u64 val)
1061{
1062 struct mac80211_hwsim_data *data = dat;
1063 enum ps_mode old_ps;
1064
1065 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
1066 val != PS_MANUAL_POLL)
1067 return -EINVAL;
1068
1069 old_ps = data->ps;
1070 data->ps = val;
1071
1072 if (val == PS_MANUAL_POLL) {
1073 ieee80211_iterate_active_interfaces(data->hw,
1074 hwsim_send_ps_poll, data);
1075 data->ps_poll_pending = true;
1076 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
1077 ieee80211_iterate_active_interfaces(data->hw,
1078 hwsim_send_nullfunc_ps,
1079 data);
1080 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
1081 ieee80211_iterate_active_interfaces(data->hw,
1082 hwsim_send_nullfunc_no_ps,
1083 data);
1084 }
1085
1086 return 0;
1087}
1088
1089DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
1090 "%llu\n");
1091
1092
73606d00
DW		 1093static int hwsim_fops_group_read(void *dat, u64 *val)
1094{
1095 struct mac80211_hwsim_data *data = dat;
1096 *val = data->group;
1097 return 0;
1098}
1099
1100static int hwsim_fops_group_write(void *dat, u64 val)
1101{
1102 struct mac80211_hwsim_data *data = dat;
1103 data->group = val;
1104 return 0;
1105}
1106
1107DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
1108 hwsim_fops_group_read, hwsim_fops_group_write,
1109 "%llx\n");
1110
acc1e7a3
JM		 1111static int __init init_mac80211_hwsim(void)
1112{
1113 int i, err = 0;
1114 u8 addr[ETH_ALEN];
1115 struct mac80211_hwsim_data *data;
1116 struct ieee80211_hw *hw;
22cad735 1117 enum ieee80211_band band;
acc1e7a3 1118
0e057d73 1119 if (radios < 1 || radios > 100)
acc1e7a3
JM		 1120 return -EINVAL;
1121
0e057d73
JB		 1122 spin_lock_init(&hwsim_radio_lock);
1123 INIT_LIST_HEAD(&hwsim_radios);
acc1e7a3
JM		 1124
1125 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
0e057d73 1126 if (IS_ERR(hwsim_class))
acc1e7a3 1127 return PTR_ERR(hwsim_class);
acc1e7a3
JM		 1128
1129 memset(addr, 0, ETH_ALEN);
1130 addr[0] = 0x02;
1131
0e057d73 1132 for (i = 0; i < radios; i++) {
acc1e7a3
JM		 1133 printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
1134 i);
1135 hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);
0e057d73 1136 if (!hw) {
acc1e7a3
JM		 1137 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
1138 "failed\n");
1139 err = -ENOMEM;
1140 goto failed;
1141 }
acc1e7a3 1142 data = hw->priv;
0e057d73
JB		 1143 data->hw = hw;
1144
6e05d6c4
GKH		 1145 data->dev = device_create(hwsim_class, NULL, 0, hw,
1146 "hwsim%d", i);
acc1e7a3 1147 if (IS_ERR(data->dev)) {
e800f17c 1148 printk(KERN_DEBUG
6e05d6c4 1149 "mac80211_hwsim: device_create "
acc1e7a3
JM		 1150 "failed (%ld)\n", PTR_ERR(data->dev));
1151 err = -ENOMEM;
3a33cc10 1152 goto failed_drvdata;
acc1e7a3
JM		 1153 }
1154 data->dev->driver = &mac80211_hwsim_driver;
acc1e7a3
JM		 1155
1156 SET_IEEE80211_DEV(hw, data->dev);
1157 addr[3] = i >> 8;
1158 addr[4] = i;
ef15aac6
JB		 1159 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
1160 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
1161 data->addresses[1].addr[0] |= 0x40;
1162 hw->wiphy->n_addresses = 2;
1163 hw->wiphy->addresses = data->addresses;
acc1e7a3
JM		 1164
1165 hw->channel_change_time = 1;
87e8b64e 1166 hw->queues = 4;
f59ac048
LR		 1167 hw->wiphy->interface_modes =
1168 BIT(NL80211_IFTYPE_STATION) |
55b39619
AY		 1169 BIT(NL80211_IFTYPE_AP) |
1170 BIT(NL80211_IFTYPE_MESH_POINT);
acc1e7a3 1171
4b14c96d 1172 hw->flags = IEEE80211_HW_MFP_CAPABLE |
0f78231b
JB		 1173 IEEE80211_HW_SIGNAL_DBM |
1174 IEEE80211_HW_SUPPORTS_STATIC_SMPS |
1175 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS;
fa77533e 1176
8aa21e6f
JB		 1177 /* ask mac80211 to reserve space for magic */
1178 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
81c06523 1179 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
8aa21e6f 1180
22cad735
LR		 1181 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
1182 sizeof(hwsim_channels_2ghz));
1183 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
1184 sizeof(hwsim_channels_5ghz));
acc1e7a3 1185 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
22cad735
LR		 1186
1187 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
1188 struct ieee80211_supported_band *sband = &data->bands[band];
1189 switch (band) {
1190 case IEEE80211_BAND_2GHZ:
1191 sband->channels = data->channels_2ghz;
1192 sband->n_channels =
1193 ARRAY_SIZE(hwsim_channels_2ghz);
d130eb49
JB		 1194 sband->bitrates = data->rates;
1195 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
22cad735
LR		 1196 break;
1197 case IEEE80211_BAND_5GHZ:
1198 sband->channels = data->channels_5ghz;
1199 sband->n_channels =
1200 ARRAY_SIZE(hwsim_channels_5ghz);
d130eb49
JB		 1201 sband->bitrates = data->rates + 4;
1202 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
22cad735
LR		 1203 break;
1204 default:
1205 break;
1206 }
1207
22cad735
LR		 1208 sband->ht_cap.ht_supported = true;
1209 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
1210 IEEE80211_HT_CAP_GRN_FLD |
1211 IEEE80211_HT_CAP_SGI_40 |
1212 IEEE80211_HT_CAP_DSSSCCK40;
1213 sband->ht_cap.ampdu_factor = 0x3;
1214 sband->ht_cap.ampdu_density = 0x6;
1215 memset(&sband->ht_cap.mcs, 0,
1216 sizeof(sband->ht_cap.mcs));
1217 sband->ht_cap.mcs.rx_mask[0] = 0xff;
1218 sband->ht_cap.mcs.rx_mask[1] = 0xff;
1219 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1220
1221 hw->wiphy->bands[band] = sband;
1222 }
73606d00
DW		 1223 /* By default all radios are belonging to the first group */
1224 data->group = 1;
acc1e7a3 1225
4a5af9c2
LR		 1226 /* Work to be done prior to ieee80211_register_hw() */
1227 switch (regtest) {
1228 case HWSIM_REGTEST_DISABLED:
1229 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
1230 case HWSIM_REGTEST_DRIVER_REG_ALL:
1231 case HWSIM_REGTEST_DIFF_COUNTRY:
1232 /*
1233 * Nothing to be done for driver regulatory domain
1234 * hints prior to ieee80211_register_hw()
1235 */
1236 break;
1237 case HWSIM_REGTEST_WORLD_ROAM:
1238 if (i == 0) {
5be83de5 1239 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 1240 wiphy_apply_custom_regulatory(hw->wiphy,
1241 &hwsim_world_regdom_custom_01);
1242 }
1243 break;
1244 case HWSIM_REGTEST_CUSTOM_WORLD:
5be83de5 1245 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 1246 wiphy_apply_custom_regulatory(hw->wiphy,
1247 &hwsim_world_regdom_custom_01);
1248 break;
1249 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1250 if (i == 0) {
5be83de5 1251 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 1252 wiphy_apply_custom_regulatory(hw->wiphy,
1253 &hwsim_world_regdom_custom_01);
1254 } else if (i == 1) {
5be83de5 1255 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 1256 wiphy_apply_custom_regulatory(hw->wiphy,
1257 &hwsim_world_regdom_custom_02);
1258 }
1259 break;
1260 case HWSIM_REGTEST_STRICT_ALL:
5be83de5 1261 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
4a5af9c2
LR		 1262 break;
1263 case HWSIM_REGTEST_STRICT_FOLLOW:
1264 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1265 if (i == 0)
5be83de5 1266 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
4a5af9c2
LR		 1267 break;
1268 case HWSIM_REGTEST_ALL:
1269 if (i == 0) {
5be83de5 1270 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 1271 wiphy_apply_custom_regulatory(hw->wiphy,
1272 &hwsim_world_regdom_custom_01);
1273 } else if (i == 1) {
5be83de5 1274 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
4a5af9c2
LR		 1275 wiphy_apply_custom_regulatory(hw->wiphy,
1276 &hwsim_world_regdom_custom_02);
1277 } else if (i == 4)
5be83de5 1278 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
4a5af9c2
LR		 1279 break;
1280 default:
1281 break;
1282 }
1283
98dfaa57
LR		 1284 /* give the regulatory workqueue a chance to run */
1285 if (regtest)
1286 schedule_timeout_interruptible(1);
acc1e7a3
JM		 1287 err = ieee80211_register_hw(hw);
1288 if (err < 0) {
1289 printk(KERN_DEBUG "mac80211_hwsim: "
1290 "ieee80211_register_hw failed (%d)\n", err);
3a33cc10 1291 goto failed_hw;
acc1e7a3
JM		 1292 }
1293
4a5af9c2
LR		 1294 /* Work to be done after to ieee80211_register_hw() */
1295 switch (regtest) {
1296 case HWSIM_REGTEST_WORLD_ROAM:
1297 case HWSIM_REGTEST_DISABLED:
1298 break;
1299 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
1300 if (!i)
1301 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1302 break;
1303 case HWSIM_REGTEST_DRIVER_REG_ALL:
1304 case HWSIM_REGTEST_STRICT_ALL:
1305 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1306 break;
1307 case HWSIM_REGTEST_DIFF_COUNTRY:
1308 if (i < ARRAY_SIZE(hwsim_alpha2s))
1309 regulatory_hint(hw->wiphy, hwsim_alpha2s[i]);
1310 break;
1311 case HWSIM_REGTEST_CUSTOM_WORLD:
1312 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1313 /*
1314 * Nothing to be done for custom world regulatory
1315 * domains after to ieee80211_register_hw
1316 */
1317 break;
1318 case HWSIM_REGTEST_STRICT_FOLLOW:
1319 if (i == 0)
1320 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1321 break;
1322 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1323 if (i == 0)
1324 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1325 else if (i == 1)
1326 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1327 break;
1328 case HWSIM_REGTEST_ALL:
1329 if (i == 2)
1330 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1331 else if (i == 3)
1332 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1333 else if (i == 4)
1334 regulatory_hint(hw->wiphy, hwsim_alpha2s[2]);
1335 break;
1336 default:
1337 break;
1338 }
1339
e174961c 1340 printk(KERN_DEBUG "%s: hwaddr %pM registered\n",
acc1e7a3 1341 wiphy_name(hw->wiphy),
e174961c 1342 hw->wiphy->perm_addr);
acc1e7a3 1343
fc6971d4
JM		 1344 data->debugfs = debugfs_create_dir("hwsim",
1345 hw->wiphy->debugfsdir);
1346 data->debugfs_ps = debugfs_create_file("ps", 0666,
1347 data->debugfs, data,
1348 &hwsim_fops_ps);
73606d00
DW		 1349 data->debugfs_group = debugfs_create_file("group", 0666,
1350 data->debugfs, data,
1351 &hwsim_fops_group);
fc6971d4 1352
acc1e7a3
JM		 1353 setup_timer(&data->beacon_timer, mac80211_hwsim_beacon,
1354 (unsigned long) hw);
0e057d73
JB		 1355
1356 list_add_tail(&data->list, &hwsim_radios);
acc1e7a3
JM		 1357 }
1358
1359 hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
1360 if (hwsim_mon == NULL)
1361 goto failed;
1362
1363 rtnl_lock();
1364
1365 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
3a33cc10 1366 if (err < 0)
acc1e7a3 1367 goto failed_mon;
3a33cc10 1368
acc1e7a3
JM		 1369
1370 err = register_netdevice(hwsim_mon);
1371 if (err < 0)
1372 goto failed_mon;
1373
1374 rtnl_unlock();
1375
1376 return 0;
1377
1378failed_mon:
1379 rtnl_unlock();
1380 free_netdev(hwsim_mon);
3a33cc10
IS		 1381 mac80211_hwsim_free();
1382 return err;
acc1e7a3 1383
3a33cc10
IS		 1384failed_hw:
1385 device_unregister(data->dev);
1386failed_drvdata:
1387 ieee80211_free_hw(hw);
acc1e7a3
JM		 1388failed:
1389 mac80211_hwsim_free();
1390 return err;
1391}
1392
1393
1394static void __exit exit_mac80211_hwsim(void)
1395{
0e057d73 1396 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
acc1e7a3 1397
acc1e7a3 1398 mac80211_hwsim_free();
5d416351 1399 unregister_netdev(hwsim_mon);
acc1e7a3
JM		 1400}
1401
1402
1403module_init(init_mac80211_hwsim);
1404module_exit(exit_mac80211_hwsim);
Linux kernel - Deliverables
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