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Jouni Malinenacc1e7a2008-06-11 10:42:31 +03001/*
2 * mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211
3 * Copyright (c) 2008, Jouni Malinen <j@w1.fi>
Javier Lopez78825132011-06-01 11:26:13 +02004 * Copyright (c) 2011, Javier Lopez <jlopex@gmail.com>
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03005 *
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:
Johannes Berg2b2d7792010-08-17 12:08:07 +020013 * - Add TSF sync and fix IBSS beacon transmission by adding
14 * competition for "air time" at TBTT
Jouni Malinenacc1e7a2008-06-11 10:42:31 +030015 * - RX filtering based on filter configuration (data->rx_filter)
16 */
17
Johannes Berg0e057d732008-09-12 00:39:22 +020018#include <linux/list.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090019#include <linux/slab.h>
Johannes Berg0e057d732008-09-12 00:39:22 +020020#include <linux/spinlock.h>
Johannes Berg90e30122009-06-18 14:51:12 +020021#include <net/dst.h>
22#include <net/xfrm.h>
Jouni Malinenacc1e7a2008-06-11 10:42:31 +030023#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>
Jouni Malinenfc6971d2008-10-30 19:59:05 +020028#include <linux/debugfs.h>
Paul Gortmaker9d9779e2011-07-03 15:21:01 -040029#include <linux/module.h>
Javier Cardona2f40b942012-03-05 17:20:37 -080030#include <linux/ktime.h>
Javier Lopez78825132011-06-01 11:26:13 +020031#include <net/genetlink.h>
32#include "mac80211_hwsim.h"
33
34#define WARN_QUEUE 100
35#define MAX_QUEUE 200
Jouni Malinenacc1e7a2008-06-11 10:42:31 +030036
37MODULE_AUTHOR("Jouni Malinen");
38MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
39MODULE_LICENSE("GPL");
40
Eric W. Biederman15e47302012-09-07 20:12:54 +000041static u32 wmediumd_portid;
Johannes Berga1910f92011-12-07 12:35:17 +010042
Jouni Malinenacc1e7a2008-06-11 10:42:31 +030043static int radios = 2;
44module_param(radios, int, 0444);
45MODULE_PARM_DESC(radios, "Number of simulated radios");
46
Johannes Berge8261172012-07-27 19:48:26 +020047static int channels = 1;
48module_param(channels, int, 0444);
49MODULE_PARM_DESC(channels, "Number of concurrent channels");
Johannes Berg69068032010-02-03 10:47:55 +010050
Luis R. Rodriguez4a5af9c2009-03-09 22:08:27 -040051/**
52 * enum hwsim_regtest - the type of regulatory tests we offer
53 *
54 * These are the different values you can use for the regtest
55 * module parameter. This is useful to help test world roaming
56 * and the driver regulatory_hint() call and combinations of these.
57 * If you want to do specific alpha2 regulatory domain tests simply
58 * use the userspace regulatory request as that will be respected as
59 * well without the need of this module parameter. This is designed
60 * only for testing the driver regulatory request, world roaming
61 * and all possible combinations.
62 *
63 * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
64 * this is the default value.
65 * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
66 * hint, only one driver regulatory hint will be sent as such the
67 * secondary radios are expected to follow.
68 * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
69 * request with all radios reporting the same regulatory domain.
70 * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
71 * different regulatory domains requests. Expected behaviour is for
72 * an intersection to occur but each device will still use their
73 * respective regulatory requested domains. Subsequent radios will
74 * use the resulting intersection.
Lucas De Marchi25985ed2011-03-30 22:57:33 -030075 * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We accomplish
Luis R. Rodriguez4a5af9c2009-03-09 22:08:27 -040076 * this by using a custom beacon-capable regulatory domain for the first
77 * radio. All other device world roam.
78 * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
79 * domain requests. All radios will adhere to this custom world regulatory
80 * domain.
81 * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
82 * domain requests. The first radio will adhere to the first custom world
83 * regulatory domain, the second one to the second custom world regulatory
84 * domain. All other devices will world roam.
85 * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain
86 * settings, only the first radio will send a regulatory domain request
87 * and use strict settings. The rest of the radios are expected to follow.
88 * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
89 * settings. All radios will adhere to this.
90 * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
91 * domain settings, combined with secondary driver regulatory domain
92 * settings. The first radio will get a strict regulatory domain setting
93 * using the first driver regulatory request and the second radio will use
94 * non-strict settings using the second driver regulatory request. All
95 * other devices should follow the intersection created between the
96 * first two.
97 * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
98 * at least 6 radios for a complete test. We will test in this order:
99 * 1 - driver custom world regulatory domain
100 * 2 - second custom world regulatory domain
101 * 3 - first driver regulatory domain request
102 * 4 - second driver regulatory domain request
103 * 5 - strict regulatory domain settings using the third driver regulatory
104 * domain request
105 * 6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
106 * regulatory requests.
107 */
108enum hwsim_regtest {
109 HWSIM_REGTEST_DISABLED = 0,
110 HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1,
111 HWSIM_REGTEST_DRIVER_REG_ALL = 2,
112 HWSIM_REGTEST_DIFF_COUNTRY = 3,
113 HWSIM_REGTEST_WORLD_ROAM = 4,
114 HWSIM_REGTEST_CUSTOM_WORLD = 5,
115 HWSIM_REGTEST_CUSTOM_WORLD_2 = 6,
116 HWSIM_REGTEST_STRICT_FOLLOW = 7,
117 HWSIM_REGTEST_STRICT_ALL = 8,
118 HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9,
119 HWSIM_REGTEST_ALL = 10,
120};
121
122/* Set to one of the HWSIM_REGTEST_* values above */
123static int regtest = HWSIM_REGTEST_DISABLED;
124module_param(regtest, int, 0444);
125MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run");
126
127static const char *hwsim_alpha2s[] = {
128 "FI",
129 "AL",
130 "US",
131 "DE",
132 "JP",
133 "AL",
134};
135
136static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = {
137 .n_reg_rules = 4,
138 .alpha2 = "99",
139 .reg_rules = {
140 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
141 REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
142 REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
143 REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
144 }
145};
146
147static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = {
148 .n_reg_rules = 2,
149 .alpha2 = "99",
150 .reg_rules = {
151 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
152 REG_RULE(5725-10, 5850+10, 40, 0, 30,
153 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
154 }
155};
156
Johannes Berg8aa21e62008-09-11 02:16:36 +0200157struct hwsim_vif_priv {
158 u32 magic;
Jouni Malinenfc6971d2008-10-30 19:59:05 +0200159 u8 bssid[ETH_ALEN];
160 bool assoc;
161 u16 aid;
Johannes Berg8aa21e62008-09-11 02:16:36 +0200162};
163
164#define HWSIM_VIF_MAGIC 0x69537748
165
166static inline void hwsim_check_magic(struct ieee80211_vif *vif)
167{
168 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
Johannes Berge8261172012-07-27 19:48:26 +0200169 WARN(vp->magic != HWSIM_VIF_MAGIC,
170 "Invalid VIF (%p) magic %#x, %pM, %d/%d\n",
171 vif, vp->magic, vif->addr, vif->type, vif->p2p);
Johannes Berg8aa21e62008-09-11 02:16:36 +0200172}
173
174static inline void hwsim_set_magic(struct ieee80211_vif *vif)
175{
176 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
177 vp->magic = HWSIM_VIF_MAGIC;
178}
179
180static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
181{
182 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
183 vp->magic = 0;
184}
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300185
Johannes Berg81c06522008-09-11 02:17:01 +0200186struct hwsim_sta_priv {
187 u32 magic;
188};
189
Johannes Berge8261172012-07-27 19:48:26 +0200190#define HWSIM_STA_MAGIC 0x6d537749
Johannes Berg81c06522008-09-11 02:17:01 +0200191
192static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
193{
194 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
Rami Rosen5d6924e2008-10-08 11:18:27 +0200195 WARN_ON(sp->magic != HWSIM_STA_MAGIC);
Johannes Berg81c06522008-09-11 02:17:01 +0200196}
197
198static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
199{
200 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
Rami Rosen5d6924e2008-10-08 11:18:27 +0200201 sp->magic = HWSIM_STA_MAGIC;
Johannes Berg81c06522008-09-11 02:17:01 +0200202}
203
204static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
205{
206 struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
207 sp->magic = 0;
208}
209
Johannes Berge8261172012-07-27 19:48:26 +0200210struct hwsim_chanctx_priv {
211 u32 magic;
212};
213
214#define HWSIM_CHANCTX_MAGIC 0x6d53774a
215
216static inline void hwsim_check_chanctx_magic(struct ieee80211_chanctx_conf *c)
217{
218 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
219 WARN_ON(cp->magic != HWSIM_CHANCTX_MAGIC);
220}
221
222static inline void hwsim_set_chanctx_magic(struct ieee80211_chanctx_conf *c)
223{
224 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
225 cp->magic = HWSIM_CHANCTX_MAGIC;
226}
227
228static inline void hwsim_clear_chanctx_magic(struct ieee80211_chanctx_conf *c)
229{
230 struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
231 cp->magic = 0;
232}
233
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300234static struct class *hwsim_class;
235
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300236static struct net_device *hwsim_mon; /* global monitor netdev */
237
Luis R. Rodriguez22cad732009-03-05 21:13:06 -0800238#define CHAN2G(_freq) { \
239 .band = IEEE80211_BAND_2GHZ, \
240 .center_freq = (_freq), \
241 .hw_value = (_freq), \
242 .max_power = 20, \
243}
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300244
Luis R. Rodriguez22cad732009-03-05 21:13:06 -0800245#define CHAN5G(_freq) { \
246 .band = IEEE80211_BAND_5GHZ, \
247 .center_freq = (_freq), \
248 .hw_value = (_freq), \
249 .max_power = 20, \
250}
251
252static const struct ieee80211_channel hwsim_channels_2ghz[] = {
253 CHAN2G(2412), /* Channel 1 */
254 CHAN2G(2417), /* Channel 2 */
255 CHAN2G(2422), /* Channel 3 */
256 CHAN2G(2427), /* Channel 4 */
257 CHAN2G(2432), /* Channel 5 */
258 CHAN2G(2437), /* Channel 6 */
259 CHAN2G(2442), /* Channel 7 */
260 CHAN2G(2447), /* Channel 8 */
261 CHAN2G(2452), /* Channel 9 */
262 CHAN2G(2457), /* Channel 10 */
263 CHAN2G(2462), /* Channel 11 */
264 CHAN2G(2467), /* Channel 12 */
265 CHAN2G(2472), /* Channel 13 */
266 CHAN2G(2484), /* Channel 14 */
267};
268
269static const struct ieee80211_channel hwsim_channels_5ghz[] = {
270 CHAN5G(5180), /* Channel 36 */
271 CHAN5G(5200), /* Channel 40 */
272 CHAN5G(5220), /* Channel 44 */
273 CHAN5G(5240), /* Channel 48 */
274
275 CHAN5G(5260), /* Channel 52 */
276 CHAN5G(5280), /* Channel 56 */
277 CHAN5G(5300), /* Channel 60 */
278 CHAN5G(5320), /* Channel 64 */
279
280 CHAN5G(5500), /* Channel 100 */
281 CHAN5G(5520), /* Channel 104 */
282 CHAN5G(5540), /* Channel 108 */
283 CHAN5G(5560), /* Channel 112 */
284 CHAN5G(5580), /* Channel 116 */
285 CHAN5G(5600), /* Channel 120 */
286 CHAN5G(5620), /* Channel 124 */
287 CHAN5G(5640), /* Channel 128 */
288 CHAN5G(5660), /* Channel 132 */
289 CHAN5G(5680), /* Channel 136 */
290 CHAN5G(5700), /* Channel 140 */
291
292 CHAN5G(5745), /* Channel 149 */
293 CHAN5G(5765), /* Channel 153 */
294 CHAN5G(5785), /* Channel 157 */
295 CHAN5G(5805), /* Channel 161 */
296 CHAN5G(5825), /* Channel 165 */
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300297};
298
299static const struct ieee80211_rate hwsim_rates[] = {
300 { .bitrate = 10 },
301 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
302 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
303 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
304 { .bitrate = 60 },
305 { .bitrate = 90 },
306 { .bitrate = 120 },
307 { .bitrate = 180 },
308 { .bitrate = 240 },
309 { .bitrate = 360 },
310 { .bitrate = 480 },
311 { .bitrate = 540 }
312};
313
Johannes Berg0e057d732008-09-12 00:39:22 +0200314static spinlock_t hwsim_radio_lock;
315static struct list_head hwsim_radios;
316
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300317struct mac80211_hwsim_data {
Johannes Berg0e057d732008-09-12 00:39:22 +0200318 struct list_head list;
319 struct ieee80211_hw *hw;
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300320 struct device *dev;
Johannes Berg1b083ea2012-07-03 13:14:49 +0200321 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
Luis R. Rodriguez22cad732009-03-05 21:13:06 -0800322 struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
323 struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300324 struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
325
Johannes Bergef15aac2010-01-20 12:02:33 +0100326 struct mac_address addresses[2];
327
Johannes Berge8261172012-07-27 19:48:26 +0200328 struct ieee80211_channel *tmp_chan;
329 struct delayed_work roc_done;
330 struct delayed_work hw_scan;
331 struct cfg80211_scan_request *hw_scan_request;
332 struct ieee80211_vif *hw_scan_vif;
333 int scan_chan_idx;
334
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300335 struct ieee80211_channel *channel;
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300336 unsigned long beacon_int; /* in jiffies unit */
337 unsigned int rx_filter;
Luis R. Rodriguezf74cb0f2010-04-08 11:50:47 -0400338 bool started, idle, scanning;
339 struct mutex mutex;
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300340 struct timer_list beacon_timer;
Jouni Malinenfc6971d2008-10-30 19:59:05 +0200341 enum ps_mode {
342 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
343 } ps;
344 bool ps_poll_pending;
345 struct dentry *debugfs;
346 struct dentry *debugfs_ps;
Daniel Wagner73606d02009-05-18 19:49:25 +0200347
Javier Lopez78825132011-06-01 11:26:13 +0200348 struct sk_buff_head pending; /* packets pending */
Daniel Wagner73606d02009-05-18 19:49:25 +0200349 /*
350 * Only radios in the same group can communicate together (the
351 * channel has to match too). Each bit represents a group. A
352 * radio can be in more then one group.
353 */
354 u64 group;
355 struct dentry *debugfs_group;
Blaise Gassendbdd7bd12010-10-28 02:01:24 -0700356
357 int power_level;
Javier Cardona2f40b942012-03-05 17:20:37 -0800358
359 /* difference between this hw's clock and the real clock, in usecs */
360 u64 tsf_offset;
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300361};
362
363
364struct hwsim_radiotap_hdr {
365 struct ieee80211_radiotap_header hdr;
Javier Cardona2f40b942012-03-05 17:20:37 -0800366 __le64 rt_tsft;
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300367 u8 rt_flags;
368 u8 rt_rate;
369 __le16 rt_channel;
370 __le16 rt_chbitmask;
Eric Dumazetba2d3582010-06-02 18:10:09 +0000371} __packed;
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300372
Javier Lopez78825132011-06-01 11:26:13 +0200373/* MAC80211_HWSIM netlinf family */
374static struct genl_family hwsim_genl_family = {
375 .id = GENL_ID_GENERATE,
376 .hdrsize = 0,
377 .name = "MAC80211_HWSIM",
378 .version = 1,
379 .maxattr = HWSIM_ATTR_MAX,
380};
381
382/* MAC80211_HWSIM netlink policy */
383
384static struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
385 [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC,
386 .len = 6*sizeof(u8) },
387 [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC,
388 .len = 6*sizeof(u8) },
389 [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
390 .len = IEEE80211_MAX_DATA_LEN },
391 [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
392 [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
393 [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
394 [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC,
395 .len = IEEE80211_TX_MAX_RATES*sizeof(
396 struct hwsim_tx_rate)},
397 [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
398};
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300399
Stephen Hemmingerd0cf9c02009-08-31 19:50:57 +0000400static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
401 struct net_device *dev)
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300402{
403 /* TODO: allow packet injection */
404 dev_kfree_skb(skb);
Patrick McHardy6ed10652009-06-23 06:03:08 +0000405 return NETDEV_TX_OK;
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300406}
407
Javier Cardona2f40b942012-03-05 17:20:37 -0800408static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
409{
410 struct timeval tv = ktime_to_timeval(ktime_get_real());
411 u64 now = tv.tv_sec * USEC_PER_SEC + tv.tv_usec;
412 return cpu_to_le64(now + data->tsf_offset);
413}
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300414
Javier Cardona12ce8ba2012-03-05 17:20:38 -0800415static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
416 struct ieee80211_vif *vif)
417{
418 struct mac80211_hwsim_data *data = hw->priv;
419 return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
420}
421
422static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
423 struct ieee80211_vif *vif, u64 tsf)
424{
425 struct mac80211_hwsim_data *data = hw->priv;
426 struct timeval tv = ktime_to_timeval(ktime_get_real());
427 u64 now = tv.tv_sec * USEC_PER_SEC + tv.tv_usec;
428 data->tsf_offset = tsf - now;
429}
430
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300431static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
Johannes Berge8261172012-07-27 19:48:26 +0200432 struct sk_buff *tx_skb,
433 struct ieee80211_channel *chan)
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300434{
435 struct mac80211_hwsim_data *data = hw->priv;
436 struct sk_buff *skb;
437 struct hwsim_radiotap_hdr *hdr;
438 u16 flags;
439 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
440 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
441
442 if (!netif_running(hwsim_mon))
443 return;
444
445 skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
446 if (skb == NULL)
447 return;
448
449 hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
450 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
451 hdr->hdr.it_pad = 0;
452 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
Jouni Malinenf248f102008-06-13 19:44:47 +0300453 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
454 (1 << IEEE80211_RADIOTAP_RATE) |
Javier Cardona2f40b942012-03-05 17:20:37 -0800455 (1 << IEEE80211_RADIOTAP_TSFT) |
Jouni Malinenf248f102008-06-13 19:44:47 +0300456 (1 << IEEE80211_RADIOTAP_CHANNEL));
Javier Cardona2f40b942012-03-05 17:20:37 -0800457 hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300458 hdr->rt_flags = 0;
459 hdr->rt_rate = txrate->bitrate / 5;
Johannes Berge8261172012-07-27 19:48:26 +0200460 hdr->rt_channel = cpu_to_le16(chan->center_freq);
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300461 flags = IEEE80211_CHAN_2GHZ;
462 if (txrate->flags & IEEE80211_RATE_ERP_G)
463 flags |= IEEE80211_CHAN_OFDM;
464 else
465 flags |= IEEE80211_CHAN_CCK;
466 hdr->rt_chbitmask = cpu_to_le16(flags);
467
468 skb->dev = hwsim_mon;
469 skb_set_mac_header(skb, 0);
470 skb->ip_summed = CHECKSUM_UNNECESSARY;
471 skb->pkt_type = PACKET_OTHERHOST;
Jouni Malinenf248f102008-06-13 19:44:47 +0300472 skb->protocol = htons(ETH_P_802_2);
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300473 memset(skb->cb, 0, sizeof(skb->cb));
474 netif_rx(skb);
475}
476
477
Johannes Berge8261172012-07-27 19:48:26 +0200478static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
479 const u8 *addr)
Jouni Malinen6c085222009-11-01 11:31:45 +0200480{
Jouni Malinen6c085222009-11-01 11:31:45 +0200481 struct sk_buff *skb;
482 struct hwsim_radiotap_hdr *hdr;
483 u16 flags;
484 struct ieee80211_hdr *hdr11;
485
486 if (!netif_running(hwsim_mon))
487 return;
488
489 skb = dev_alloc_skb(100);
490 if (skb == NULL)
491 return;
492
493 hdr = (struct hwsim_radiotap_hdr *) skb_put(skb, sizeof(*hdr));
494 hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
495 hdr->hdr.it_pad = 0;
496 hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
497 hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
498 (1 << IEEE80211_RADIOTAP_CHANNEL));
499 hdr->rt_flags = 0;
500 hdr->rt_rate = 0;
Johannes Berge8261172012-07-27 19:48:26 +0200501 hdr->rt_channel = cpu_to_le16(chan->center_freq);
Jouni Malinen6c085222009-11-01 11:31:45 +0200502 flags = IEEE80211_CHAN_2GHZ;
503 hdr->rt_chbitmask = cpu_to_le16(flags);
504
505 hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
506 hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
507 IEEE80211_STYPE_ACK);
508 hdr11->duration_id = cpu_to_le16(0);
509 memcpy(hdr11->addr1, addr, ETH_ALEN);
510
511 skb->dev = hwsim_mon;
512 skb_set_mac_header(skb, 0);
513 skb->ip_summed = CHECKSUM_UNNECESSARY;
514 skb->pkt_type = PACKET_OTHERHOST;
515 skb->protocol = htons(ETH_P_802_2);
516 memset(skb->cb, 0, sizeof(skb->cb));
517 netif_rx(skb);
518}
519
520
Jouni Malinenfc6971d2008-10-30 19:59:05 +0200521static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
522 struct sk_buff *skb)
523{
524 switch (data->ps) {
525 case PS_DISABLED:
526 return true;
527 case PS_ENABLED:
528 return false;
529 case PS_AUTO_POLL:
530 /* TODO: accept (some) Beacons by default and other frames only
531 * if pending PS-Poll has been sent */
532 return true;
533 case PS_MANUAL_POLL:
534 /* Allow unicast frames to own address if there is a pending
535 * PS-Poll */
536 if (data->ps_poll_pending &&
537 memcmp(data->hw->wiphy->perm_addr, skb->data + 4,
538 ETH_ALEN) == 0) {
539 data->ps_poll_pending = false;
540 return true;
541 }
542 return false;
543 }
544
545 return true;
546}
547
548
Jouni Malinen265dc7f2009-12-04 19:10:34 +0200549struct mac80211_hwsim_addr_match_data {
550 bool ret;
551 const u8 *addr;
552};
553
554static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
555 struct ieee80211_vif *vif)
556{
557 struct mac80211_hwsim_addr_match_data *md = data;
558 if (memcmp(mac, md->addr, ETH_ALEN) == 0)
559 md->ret = true;
560}
561
562
563static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
564 const u8 *addr)
565{
566 struct mac80211_hwsim_addr_match_data md;
567
568 if (memcmp(addr, data->hw->wiphy->perm_addr, ETH_ALEN) == 0)
569 return true;
570
571 md.ret = false;
572 md.addr = addr;
573 ieee80211_iterate_active_interfaces_atomic(data->hw,
Johannes Berg8b2c9822012-11-06 20:23:30 +0100574 IEEE80211_IFACE_ITER_NORMAL,
Jouni Malinen265dc7f2009-12-04 19:10:34 +0200575 mac80211_hwsim_addr_iter,
576 &md);
577
578 return md.ret;
579}
580
Javier Lopez78825132011-06-01 11:26:13 +0200581static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
582 struct sk_buff *my_skb,
Eric W. Biederman15e47302012-09-07 20:12:54 +0000583 int dst_portid)
Javier Lopez78825132011-06-01 11:26:13 +0200584{
585 struct sk_buff *skb;
586 struct mac80211_hwsim_data *data = hw->priv;
587 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
588 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
589 void *msg_head;
590 unsigned int hwsim_flags = 0;
591 int i;
592 struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
Jouni Malinen265dc7f2009-12-04 19:10:34 +0200593
Javier Lopez78825132011-06-01 11:26:13 +0200594 if (data->ps != PS_DISABLED)
595 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
596 /* If the queue contains MAX_QUEUE skb's drop some */
597 if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
598 /* Droping until WARN_QUEUE level */
599 while (skb_queue_len(&data->pending) >= WARN_QUEUE)
600 skb_dequeue(&data->pending);
601 }
602
Thomas Graf58050fc2012-06-28 03:57:45 +0000603 skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
Javier Lopez78825132011-06-01 11:26:13 +0200604 if (skb == NULL)
605 goto nla_put_failure;
606
607 msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
608 HWSIM_CMD_FRAME);
609 if (msg_head == NULL) {
610 printk(KERN_DEBUG "mac80211_hwsim: problem with msg_head\n");
611 goto nla_put_failure;
612 }
613
David S. Miller633c9382012-04-01 21:03:30 -0400614 if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
615 sizeof(struct mac_address), data->addresses[1].addr))
616 goto nla_put_failure;
Javier Lopez78825132011-06-01 11:26:13 +0200617
618 /* We get the skb->data */
David S. Miller633c9382012-04-01 21:03:30 -0400619 if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
620 goto nla_put_failure;
Javier Lopez78825132011-06-01 11:26:13 +0200621
622 /* We get the flags for this transmission, and we translate them to
623 wmediumd flags */
624
625 if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
626 hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
627
628 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
629 hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
630
David S. Miller633c9382012-04-01 21:03:30 -0400631 if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
632 goto nla_put_failure;
Javier Lopez78825132011-06-01 11:26:13 +0200633
634 /* We get the tx control (rate and retries) info*/
635
636 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
637 tx_attempts[i].idx = info->status.rates[i].idx;
638 tx_attempts[i].count = info->status.rates[i].count;
639 }
640
David S. Miller633c9382012-04-01 21:03:30 -0400641 if (nla_put(skb, HWSIM_ATTR_TX_INFO,
642 sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
643 tx_attempts))
644 goto nla_put_failure;
Javier Lopez78825132011-06-01 11:26:13 +0200645
646 /* We create a cookie to identify this skb */
David S. Miller633c9382012-04-01 21:03:30 -0400647 if (nla_put_u64(skb, HWSIM_ATTR_COOKIE, (unsigned long) my_skb))
648 goto nla_put_failure;
Javier Lopez78825132011-06-01 11:26:13 +0200649
650 genlmsg_end(skb, msg_head);
Eric W. Biederman15e47302012-09-07 20:12:54 +0000651 genlmsg_unicast(&init_net, skb, dst_portid);
Javier Lopez78825132011-06-01 11:26:13 +0200652
653 /* Enqueue the packet */
654 skb_queue_tail(&data->pending, my_skb);
655 return;
656
657nla_put_failure:
Masanari Iidac3938622012-02-17 23:04:10 +0900658 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
Javier Lopez78825132011-06-01 11:26:13 +0200659}
660
Johannes Berge8261172012-07-27 19:48:26 +0200661static bool hwsim_chans_compat(struct ieee80211_channel *c1,
662 struct ieee80211_channel *c2)
663{
664 if (!c1 || !c2)
665 return false;
666
667 return c1->center_freq == c2->center_freq;
668}
669
670struct tx_iter_data {
671 struct ieee80211_channel *channel;
672 bool receive;
673};
674
675static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
676 struct ieee80211_vif *vif)
677{
678 struct tx_iter_data *data = _data;
679
680 if (!vif->chanctx_conf)
681 return;
682
683 if (!hwsim_chans_compat(data->channel,
Johannes Berg4bf88532012-11-09 11:39:59 +0100684 rcu_dereference(vif->chanctx_conf)->def.chan))
Johannes Berge8261172012-07-27 19:48:26 +0200685 return;
686
687 data->receive = true;
688}
689
Javier Lopez78825132011-06-01 11:26:13 +0200690static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
Johannes Berge8261172012-07-27 19:48:26 +0200691 struct sk_buff *skb,
692 struct ieee80211_channel *chan)
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300693{
Johannes Berg0e057d732008-09-12 00:39:22 +0200694 struct mac80211_hwsim_data *data = hw->priv, *data2;
695 bool ack = false;
Jouni Malinene36cfdc2008-06-13 19:44:48 +0300696 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300697 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
Jouni Malinene36cfdc2008-06-13 19:44:48 +0300698 struct ieee80211_rx_status rx_status;
Javier Cardonaf483ad22012-03-31 11:31:30 -0700699 struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300700
701 memset(&rx_status, 0, sizeof(rx_status));
Thomas Pedersenf4bda332012-11-13 10:46:27 -0800702 rx_status.flag |= RX_FLAG_MACTIME_START;
Johannes Berge8261172012-07-27 19:48:26 +0200703 rx_status.freq = chan->center_freq;
704 rx_status.band = chan->band;
Johannes Berge6a98542008-10-21 12:40:02 +0200705 rx_status.rate_idx = info->control.rates[0].idx;
Jouni Malinen281ed292011-08-06 23:07:00 +0300706 if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
707 rx_status.flag |= RX_FLAG_HT;
708 if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
709 rx_status.flag |= RX_FLAG_40MHZ;
710 if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
711 rx_status.flag |= RX_FLAG_SHORT_GI;
Johannes Berg4b14c962009-07-10 16:56:59 +0200712 /* TODO: simulate real signal strength (and optional packet loss) */
Blaise Gassendbdd7bd12010-10-28 02:01:24 -0700713 rx_status.signal = data->power_level - 50;
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300714
Jouni Malinenfc6971d2008-10-30 19:59:05 +0200715 if (data->ps != PS_DISABLED)
716 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
717
Johannes Berg90e30122009-06-18 14:51:12 +0200718 /* release the skb's source info */
719 skb_orphan(skb);
John W. Linvillec0acf382009-06-30 16:55:52 -0400720 skb_dst_drop(skb);
Johannes Berg90e30122009-06-18 14:51:12 +0200721 skb->mark = 0;
722 secpath_reset(skb);
723 nf_reset(skb);
724
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300725 /* Copy skb to all enabled radios that are on the current frequency */
Johannes Berg0e057d732008-09-12 00:39:22 +0200726 spin_lock(&hwsim_radio_lock);
727 list_for_each_entry(data2, &hwsim_radios, list) {
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300728 struct sk_buff *nskb;
Javier Cardonaf483ad22012-03-31 11:31:30 -0700729 struct ieee80211_mgmt *mgmt;
Johannes Berge8261172012-07-27 19:48:26 +0200730 struct tx_iter_data tx_iter_data = {
731 .receive = false,
732 .channel = chan,
733 };
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300734
Johannes Berg0e057d732008-09-12 00:39:22 +0200735 if (data == data2)
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300736 continue;
Johannes Berg0e057d732008-09-12 00:39:22 +0200737
Johannes Berge8261172012-07-27 19:48:26 +0200738 if (!data2->started || (data2->idle && !data2->tmp_chan) ||
739 !hwsim_ps_rx_ok(data2, skb))
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300740 continue;
741
Johannes Berge8261172012-07-27 19:48:26 +0200742 if (!(data->group & data2->group))
743 continue;
744
745 if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
746 !hwsim_chans_compat(chan, data2->channel)) {
747 ieee80211_iterate_active_interfaces_atomic(
Johannes Berg8b2c9822012-11-06 20:23:30 +0100748 data2->hw, IEEE80211_IFACE_ITER_NORMAL,
749 mac80211_hwsim_tx_iter, &tx_iter_data);
Johannes Berge8261172012-07-27 19:48:26 +0200750 if (!tx_iter_data.receive)
751 continue;
752 }
753
Johannes Berg90b9e4462012-11-16 10:09:08 +0100754 /*
755 * reserve some space for our vendor and the normal
756 * radiotap header, since we're copying anyway
757 */
758 nskb = skb_copy_expand(skb, 64, 0, GFP_ATOMIC);
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300759 if (nskb == NULL)
760 continue;
761
Jouni Malinen265dc7f2009-12-04 19:10:34 +0200762 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
Johannes Berg0e057d732008-09-12 00:39:22 +0200763 ack = true;
Javier Cardonaf483ad22012-03-31 11:31:30 -0700764
765 /* set bcn timestamp relative to receiver mactime */
Ashok Nagarajan4e13f092012-03-08 09:27:34 -0800766 rx_status.mactime =
Javier Cardonaf483ad22012-03-31 11:31:30 -0700767 le64_to_cpu(__mac80211_hwsim_get_tsf(data2));
768 mgmt = (struct ieee80211_mgmt *) nskb->data;
769 if (ieee80211_is_beacon(mgmt->frame_control) ||
770 ieee80211_is_probe_resp(mgmt->frame_control))
771 mgmt->u.beacon.timestamp = cpu_to_le64(
772 rx_status.mactime +
Javier Cardonab6ba82c2012-04-12 14:32:21 -0700773 (data->tsf_offset - data2->tsf_offset) +
Javier Cardonaf483ad22012-03-31 11:31:30 -0700774 24 * 8 * 10 / txrate->bitrate);
775
Johannes Berg90b9e4462012-11-16 10:09:08 +0100776#if 0
777 /*
778 * Don't enable this code by default as the OUI 00:00:00
779 * is registered to Xerox so we shouldn't use it here, it
780 * might find its way into pcap files.
781 * Note that this code requires the headroom in the SKB
782 * that was allocated earlier.
783 */
784 rx_status.vendor_radiotap_oui[0] = 0x00;
785 rx_status.vendor_radiotap_oui[1] = 0x00;
786 rx_status.vendor_radiotap_oui[2] = 0x00;
787 rx_status.vendor_radiotap_subns = 127;
788 /*
789 * Radiotap vendor namespaces can (and should) also be
790 * split into fields by using the standard radiotap
791 * presence bitmap mechanism. Use just BIT(0) here for
792 * the presence bitmap.
793 */
794 rx_status.vendor_radiotap_bitmap = BIT(0);
795 /* We have 8 bytes of (dummy) data */
796 rx_status.vendor_radiotap_len = 8;
797 /* For testing, also require it to be aligned */
798 rx_status.vendor_radiotap_align = 8;
799 /* push the data */
800 memcpy(skb_push(nskb, 8), "ABCDEFGH", 8);
801#endif
802
Johannes Bergf1d58c22009-06-17 13:13:00 +0200803 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
804 ieee80211_rx_irqsafe(data2->hw, nskb);
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300805 }
Johannes Berg0e057d732008-09-12 00:39:22 +0200806 spin_unlock(&hwsim_radio_lock);
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300807
Jouni Malinene36cfdc2008-06-13 19:44:48 +0300808 return ack;
809}
810
Thomas Huehn36323f82012-07-23 21:33:42 +0200811static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
812 struct ieee80211_tx_control *control,
813 struct sk_buff *skb)
Jouni Malinene36cfdc2008-06-13 19:44:48 +0300814{
Johannes Berge8261172012-07-27 19:48:26 +0200815 struct mac80211_hwsim_data *data = hw->priv;
816 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
817 struct ieee80211_chanctx_conf *chanctx_conf;
818 struct ieee80211_channel *channel;
Johannes Berg0e057d732008-09-12 00:39:22 +0200819 bool ack;
Eric W. Biederman15e47302012-09-07 20:12:54 +0000820 u32 _portid;
Jouni Malinene36cfdc2008-06-13 19:44:48 +0300821
Johannes Berge8261172012-07-27 19:48:26 +0200822 if (WARN_ON(skb->len < 10)) {
Jouni Malinene36cfdc2008-06-13 19:44:48 +0300823 /* Should not happen; just a sanity check for addr1 use */
824 dev_kfree_skb(skb);
Johannes Berg7bb45682011-02-24 14:42:06 +0100825 return;
Jouni Malinene36cfdc2008-06-13 19:44:48 +0300826 }
827
Johannes Berge8261172012-07-27 19:48:26 +0200828 if (channels == 1) {
829 channel = data->channel;
830 } else if (txi->hw_queue == 4) {
831 channel = data->tmp_chan;
832 } else {
833 chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf);
834 if (chanctx_conf)
Johannes Berg4bf88532012-11-09 11:39:59 +0100835 channel = chanctx_conf->def.chan;
Johannes Berge8261172012-07-27 19:48:26 +0200836 else
837 channel = NULL;
838 }
839
840 if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
841 dev_kfree_skb(skb);
842 return;
843 }
844
845 if (data->idle && !data->tmp_chan) {
846 wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
847 dev_kfree_skb(skb);
848 return;
849 }
850
851 if (txi->control.vif)
852 hwsim_check_magic(txi->control.vif);
853 if (control->sta)
854 hwsim_check_sta_magic(control->sta);
855
856 txi->rate_driver_data[0] = channel;
857
858 mac80211_hwsim_monitor_rx(hw, skb, channel);
859
Javier Lopez78825132011-06-01 11:26:13 +0200860 /* wmediumd mode check */
Eric W. Biederman15e47302012-09-07 20:12:54 +0000861 _portid = ACCESS_ONCE(wmediumd_portid);
Javier Lopez78825132011-06-01 11:26:13 +0200862
Eric W. Biederman15e47302012-09-07 20:12:54 +0000863 if (_portid)
864 return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
Javier Lopez78825132011-06-01 11:26:13 +0200865
866 /* NO wmediumd detected, perfect medium simulation */
Johannes Berge8261172012-07-27 19:48:26 +0200867 ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
Javier Lopez78825132011-06-01 11:26:13 +0200868
Jouni Malinen6c085222009-11-01 11:31:45 +0200869 if (ack && skb->len >= 16) {
870 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
Johannes Berge8261172012-07-27 19:48:26 +0200871 mac80211_hwsim_monitor_ack(channel, hdr->addr2);
Jouni Malinen6c085222009-11-01 11:31:45 +0200872 }
Jouni Malinene36cfdc2008-06-13 19:44:48 +0300873
Johannes Berge6a98542008-10-21 12:40:02 +0200874 ieee80211_tx_info_clear_status(txi);
Javier Cardona2a4ffa42012-05-01 03:01:28 -0700875
876 /* frame was transmitted at most favorable rate at first attempt */
877 txi->control.rates[0].count = 1;
878 txi->control.rates[1].idx = -1;
879
Johannes Berge6a98542008-10-21 12:40:02 +0200880 if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
881 txi->flags |= IEEE80211_TX_STAT_ACK;
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300882 ieee80211_tx_status_irqsafe(hw, skb);
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300883}
884
885
886static int mac80211_hwsim_start(struct ieee80211_hw *hw)
887{
888 struct mac80211_hwsim_data *data = hw->priv;
Joe Perchesc96c31e2010-07-26 14:39:58 -0700889 wiphy_debug(hw->wiphy, "%s\n", __func__);
Rusty Russell3db1cd52011-12-19 13:56:45 +0000890 data->started = true;
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300891 return 0;
892}
893
894
895static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
896{
897 struct mac80211_hwsim_data *data = hw->priv;
Rusty Russell3db1cd52011-12-19 13:56:45 +0000898 data->started = false;
Jouni Malinenab1ef982008-10-30 16:59:25 +0200899 del_timer(&data->beacon_timer);
Joe Perchesc96c31e2010-07-26 14:39:58 -0700900 wiphy_debug(hw->wiphy, "%s\n", __func__);
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300901}
902
903
904static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
Johannes Berg1ed32e42009-12-23 13:15:45 +0100905 struct ieee80211_vif *vif)
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300906{
Joe Perchesc96c31e2010-07-26 14:39:58 -0700907 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
Johannes Berg2ca27bc2010-09-16 14:58:23 +0200908 __func__, ieee80211_vif_type_p2p(vif),
909 vif->addr);
Johannes Berg1ed32e42009-12-23 13:15:45 +0100910 hwsim_set_magic(vif);
Johannes Berge8261172012-07-27 19:48:26 +0200911
912 vif->cab_queue = 0;
913 vif->hw_queue[IEEE80211_AC_VO] = 0;
914 vif->hw_queue[IEEE80211_AC_VI] = 1;
915 vif->hw_queue[IEEE80211_AC_BE] = 2;
916 vif->hw_queue[IEEE80211_AC_BK] = 3;
917
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300918 return 0;
919}
920
921
Johannes Bergc35d0272010-08-27 12:35:59 +0200922static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
923 struct ieee80211_vif *vif,
Johannes Berg2ca27bc2010-09-16 14:58:23 +0200924 enum nl80211_iftype newtype,
925 bool newp2p)
Johannes Bergc35d0272010-08-27 12:35:59 +0200926{
Johannes Berg2ca27bc2010-09-16 14:58:23 +0200927 newtype = ieee80211_iftype_p2p(newtype, newp2p);
Johannes Bergc35d0272010-08-27 12:35:59 +0200928 wiphy_debug(hw->wiphy,
929 "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
Johannes Berg2ca27bc2010-09-16 14:58:23 +0200930 __func__, ieee80211_vif_type_p2p(vif),
931 newtype, vif->addr);
Johannes Bergc35d0272010-08-27 12:35:59 +0200932 hwsim_check_magic(vif);
933
934 return 0;
935}
936
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300937static void mac80211_hwsim_remove_interface(
Johannes Berg1ed32e42009-12-23 13:15:45 +0100938 struct ieee80211_hw *hw, struct ieee80211_vif *vif)
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300939{
Joe Perchesc96c31e2010-07-26 14:39:58 -0700940 wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
Johannes Berg2ca27bc2010-09-16 14:58:23 +0200941 __func__, ieee80211_vif_type_p2p(vif),
942 vif->addr);
Johannes Berg1ed32e42009-12-23 13:15:45 +0100943 hwsim_check_magic(vif);
944 hwsim_clear_magic(vif);
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300945}
946
Johannes Berge8261172012-07-27 19:48:26 +0200947static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
948 struct sk_buff *skb,
949 struct ieee80211_channel *chan)
950{
951 u32 _pid = ACCESS_ONCE(wmediumd_portid);
952
953 mac80211_hwsim_monitor_rx(hw, skb, chan);
954
955 if (_pid)
956 return mac80211_hwsim_tx_frame_nl(hw, skb, _pid);
957
958 mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
959 dev_kfree_skb(skb);
960}
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300961
962static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
963 struct ieee80211_vif *vif)
964{
965 struct ieee80211_hw *hw = arg;
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300966 struct sk_buff *skb;
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300967
Johannes Berg8aa21e62008-09-11 02:16:36 +0200968 hwsim_check_magic(vif);
969
Andrey Yurovsky55b39612008-10-31 23:23:35 -0700970 if (vif->type != NL80211_IFTYPE_AP &&
Johannes Berg2b2d7792010-08-17 12:08:07 +0200971 vif->type != NL80211_IFTYPE_MESH_POINT &&
972 vif->type != NL80211_IFTYPE_ADHOC)
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300973 return;
974
975 skb = ieee80211_beacon_get(hw, vif);
976 if (skb == NULL)
977 return;
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300978
Johannes Berge8261172012-07-27 19:48:26 +0200979 mac80211_hwsim_tx_frame(hw, skb,
Johannes Berg4bf88532012-11-09 11:39:59 +0100980 rcu_dereference(vif->chanctx_conf)->def.chan);
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300981}
982
983
984static void mac80211_hwsim_beacon(unsigned long arg)
985{
986 struct ieee80211_hw *hw = (struct ieee80211_hw *) arg;
987 struct mac80211_hwsim_data *data = hw->priv;
988
Johannes Berg4c4c6712009-06-01 14:29:52 +0200989 if (!data->started)
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300990 return;
991
Jouni Malinenf248f102008-06-13 19:44:47 +0300992 ieee80211_iterate_active_interfaces_atomic(
Johannes Berg8b2c9822012-11-06 20:23:30 +0100993 hw, IEEE80211_IFACE_ITER_NORMAL,
994 mac80211_hwsim_beacon_tx, hw);
Jouni Malinenacc1e7a2008-06-11 10:42:31 +0300995
996 data->beacon_timer.expires = jiffies + data->beacon_int;
997 add_timer(&data->beacon_timer);
998}
999
Johannes Berg0aaffa92010-05-05 15:28:27 +02001000static const char *hwsim_chantypes[] = {
1001 [NL80211_CHAN_NO_HT] = "noht",
1002 [NL80211_CHAN_HT20] = "ht20",
1003 [NL80211_CHAN_HT40MINUS] = "ht40-",
1004 [NL80211_CHAN_HT40PLUS] = "ht40+",
1005};
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03001006
Johannes Berge8975582008-10-09 12:18:51 +02001007static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03001008{
1009 struct mac80211_hwsim_data *data = hw->priv;
Johannes Berge8975582008-10-09 12:18:51 +02001010 struct ieee80211_conf *conf = &hw->conf;
Johannes Berg0f782312009-12-01 13:37:02 +01001011 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
1012 [IEEE80211_SMPS_AUTOMATIC] = "auto",
1013 [IEEE80211_SMPS_OFF] = "off",
1014 [IEEE80211_SMPS_STATIC] = "static",
1015 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
1016 };
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03001017
Joe Perchesc96c31e2010-07-26 14:39:58 -07001018 wiphy_debug(hw->wiphy,
1019 "%s (freq=%d/%s idle=%d ps=%d smps=%s)\n",
1020 __func__,
Johannes Berge8261172012-07-27 19:48:26 +02001021 conf->channel ? conf->channel->center_freq : 0,
Joe Perchesc96c31e2010-07-26 14:39:58 -07001022 hwsim_chantypes[conf->channel_type],
1023 !!(conf->flags & IEEE80211_CONF_IDLE),
1024 !!(conf->flags & IEEE80211_CONF_PS),
1025 smps_modes[conf->smps_mode]);
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03001026
Jouni Malinen70541832009-11-01 11:30:48 +02001027 data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1028
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03001029 data->channel = conf->channel;
Johannes Berge8261172012-07-27 19:48:26 +02001030
1031 WARN_ON(data->channel && channels > 1);
1032
Blaise Gassendbdd7bd12010-10-28 02:01:24 -07001033 data->power_level = conf->power_level;
Johannes Berg4c4c6712009-06-01 14:29:52 +02001034 if (!data->started || !data->beacon_int)
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03001035 del_timer(&data->beacon_timer);
1036 else
1037 mod_timer(&data->beacon_timer, jiffies + data->beacon_int);
1038
1039 return 0;
1040}
1041
1042
1043static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
1044 unsigned int changed_flags,
Johannes Berg3ac64be2009-08-17 16:16:53 +02001045 unsigned int *total_flags,u64 multicast)
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03001046{
1047 struct mac80211_hwsim_data *data = hw->priv;
1048
Joe Perchesc96c31e2010-07-26 14:39:58 -07001049 wiphy_debug(hw->wiphy, "%s\n", __func__);
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03001050
1051 data->rx_filter = 0;
1052 if (*total_flags & FIF_PROMISC_IN_BSS)
1053 data->rx_filter |= FIF_PROMISC_IN_BSS;
1054 if (*total_flags & FIF_ALLMULTI)
1055 data->rx_filter |= FIF_ALLMULTI;
1056
1057 *total_flags = data->rx_filter;
1058}
1059
Johannes Berg8aa21e62008-09-11 02:16:36 +02001060static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
1061 struct ieee80211_vif *vif,
1062 struct ieee80211_bss_conf *info,
1063 u32 changed)
1064{
Jouni Malinenfc6971d2008-10-30 19:59:05 +02001065 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
Johannes Berg57c4d7b2009-04-23 16:10:04 +02001066 struct mac80211_hwsim_data *data = hw->priv;
Jouni Malinenfc6971d2008-10-30 19:59:05 +02001067
Johannes Berg8aa21e62008-09-11 02:16:36 +02001068 hwsim_check_magic(vif);
Jouni Malinenfe63bfa2008-10-30 16:59:21 +02001069
Joe Perchesc96c31e2010-07-26 14:39:58 -07001070 wiphy_debug(hw->wiphy, "%s(changed=0x%x)\n", __func__, changed);
Jouni Malinenfe63bfa2008-10-30 16:59:21 +02001071
Johannes Berg2d0ddec2009-04-23 16:13:26 +02001072 if (changed & BSS_CHANGED_BSSID) {
Joe Perchesc96c31e2010-07-26 14:39:58 -07001073 wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
1074 __func__, info->bssid);
Johannes Berg2d0ddec2009-04-23 16:13:26 +02001075 memcpy(vp->bssid, info->bssid, ETH_ALEN);
1076 }
1077
Jouni Malinenfe63bfa2008-10-30 16:59:21 +02001078 if (changed & BSS_CHANGED_ASSOC) {
Joe Perchesc96c31e2010-07-26 14:39:58 -07001079 wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
1080 info->assoc, info->aid);
Jouni Malinenfc6971d2008-10-30 19:59:05 +02001081 vp->assoc = info->assoc;
1082 vp->aid = info->aid;
Jouni Malinenfe63bfa2008-10-30 16:59:21 +02001083 }
1084
Johannes Berg57c4d7b2009-04-23 16:10:04 +02001085 if (changed & BSS_CHANGED_BEACON_INT) {
Joe Perchesc96c31e2010-07-26 14:39:58 -07001086 wiphy_debug(hw->wiphy, " BCNINT: %d\n", info->beacon_int);
Johannes Berg57c4d7b2009-04-23 16:10:04 +02001087 data->beacon_int = 1024 * info->beacon_int / 1000 * HZ / 1000;
Johannes Bergd91f1902009-04-24 15:13:54 +02001088 if (WARN_ON(!data->beacon_int))
Johannes Berg57c4d7b2009-04-23 16:10:04 +02001089 data->beacon_int = 1;
Jouni Malinenffed1302009-09-26 22:30:15 +03001090 if (data->started)
1091 mod_timer(&data->beacon_timer,
1092 jiffies + data->beacon_int);
Johannes Berg57c4d7b2009-04-23 16:10:04 +02001093 }
1094
Jouni Malinenfe63bfa2008-10-30 16:59:21 +02001095 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
Joe Perchesc96c31e2010-07-26 14:39:58 -07001096 wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
1097 info->use_cts_prot);
Jouni Malinenfe63bfa2008-10-30 16:59:21 +02001098 }
1099
1100 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
Joe Perchesc96c31e2010-07-26 14:39:58 -07001101 wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
1102 info->use_short_preamble);
Jouni Malinenfe63bfa2008-10-30 16:59:21 +02001103 }
1104
1105 if (changed & BSS_CHANGED_ERP_SLOT) {
Joe Perchesc96c31e2010-07-26 14:39:58 -07001106 wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
Jouni Malinenfe63bfa2008-10-30 16:59:21 +02001107 }
1108
1109 if (changed & BSS_CHANGED_HT) {
Johannes Berg4bf88532012-11-09 11:39:59 +01001110 wiphy_debug(hw->wiphy, " HT: op_mode=0x%x\n",
1111 info->ht_operation_mode);
Jouni Malinenfe63bfa2008-10-30 16:59:21 +02001112 }
1113
1114 if (changed & BSS_CHANGED_BASIC_RATES) {
Joe Perchesc96c31e2010-07-26 14:39:58 -07001115 wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
1116 (unsigned long long) info->basic_rates);
Jouni Malinenfe63bfa2008-10-30 16:59:21 +02001117 }
Johannes Bergcbc668a2012-10-24 11:54:31 +02001118
1119 if (changed & BSS_CHANGED_TXPOWER)
1120 wiphy_debug(hw->wiphy, " TX Power: %d dBm\n", info->txpower);
Johannes Berg8aa21e62008-09-11 02:16:36 +02001121}
1122
Johannes Berg1d669cb2010-02-19 19:06:55 +01001123static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
1124 struct ieee80211_vif *vif,
1125 struct ieee80211_sta *sta)
1126{
1127 hwsim_check_magic(vif);
1128 hwsim_set_sta_magic(sta);
1129
1130 return 0;
1131}
1132
1133static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
1134 struct ieee80211_vif *vif,
1135 struct ieee80211_sta *sta)
1136{
1137 hwsim_check_magic(vif);
1138 hwsim_clear_sta_magic(sta);
1139
1140 return 0;
1141}
1142
Johannes Berg8aa21e62008-09-11 02:16:36 +02001143static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
1144 struct ieee80211_vif *vif,
Johannes Berg17741cd2008-09-11 00:02:02 +02001145 enum sta_notify_cmd cmd,
1146 struct ieee80211_sta *sta)
Johannes Berg8aa21e62008-09-11 02:16:36 +02001147{
1148 hwsim_check_magic(vif);
Johannes Berg1d669cb2010-02-19 19:06:55 +01001149
Johannes Berg81c06522008-09-11 02:17:01 +02001150 switch (cmd) {
Christian Lamparter89fad572008-12-09 16:28:06 +01001151 case STA_NOTIFY_SLEEP:
1152 case STA_NOTIFY_AWAKE:
1153 /* TODO: make good use of these flags */
1154 break;
Johannes Berg1d669cb2010-02-19 19:06:55 +01001155 default:
1156 WARN(1, "Invalid sta notify: %d\n", cmd);
1157 break;
Johannes Berg81c06522008-09-11 02:17:01 +02001158 }
1159}
1160
1161static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
1162 struct ieee80211_sta *sta,
1163 bool set)
1164{
1165 hwsim_check_sta_magic(sta);
1166 return 0;
Johannes Berg8aa21e62008-09-11 02:16:36 +02001167}
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03001168
Jouni Malinen1e898ff82008-10-30 16:59:23 +02001169static int mac80211_hwsim_conf_tx(
Eliad Peller8a3a3c82011-10-02 10:15:52 +02001170 struct ieee80211_hw *hw,
1171 struct ieee80211_vif *vif, u16 queue,
Jouni Malinen1e898ff82008-10-30 16:59:23 +02001172 const struct ieee80211_tx_queue_params *params)
1173{
Joe Perchesc96c31e2010-07-26 14:39:58 -07001174 wiphy_debug(hw->wiphy,
1175 "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
1176 __func__, queue,
1177 params->txop, params->cw_min,
1178 params->cw_max, params->aifs);
Jouni Malinen1e898ff82008-10-30 16:59:23 +02001179 return 0;
1180}
1181
Holger Schurig12897232010-04-19 10:23:57 +02001182static int mac80211_hwsim_get_survey(
1183 struct ieee80211_hw *hw, int idx,
1184 struct survey_info *survey)
1185{
1186 struct ieee80211_conf *conf = &hw->conf;
1187
Joe Perchesc96c31e2010-07-26 14:39:58 -07001188 wiphy_debug(hw->wiphy, "%s (idx=%d)\n", __func__, idx);
Holger Schurig12897232010-04-19 10:23:57 +02001189
1190 if (idx != 0)
1191 return -ENOENT;
1192
1193 /* Current channel */
1194 survey->channel = conf->channel;
1195
1196 /*
1197 * Magically conjured noise level --- this is only ok for simulated hardware.
1198 *
1199 * A real driver which cannot determine the real channel noise MUST NOT
1200 * report any noise, especially not a magically conjured one :-)
1201 */
1202 survey->filled = SURVEY_INFO_NOISE_DBM;
1203 survey->noise = -92;
1204
1205 return 0;
1206}
1207
Johannes Bergaff89a92009-07-01 21:26:51 +02001208#ifdef CONFIG_NL80211_TESTMODE
1209/*
1210 * This section contains example code for using netlink
1211 * attributes with the testmode command in nl80211.
1212 */
1213
1214/* These enums need to be kept in sync with userspace */
1215enum hwsim_testmode_attr {
1216 __HWSIM_TM_ATTR_INVALID = 0,
1217 HWSIM_TM_ATTR_CMD = 1,
1218 HWSIM_TM_ATTR_PS = 2,
1219
1220 /* keep last */
1221 __HWSIM_TM_ATTR_AFTER_LAST,
1222 HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
1223};
1224
1225enum hwsim_testmode_cmd {
1226 HWSIM_TM_CMD_SET_PS = 0,
1227 HWSIM_TM_CMD_GET_PS = 1,
Johannes Berg4d6d0ae2012-07-04 12:58:40 +02001228 HWSIM_TM_CMD_STOP_QUEUES = 2,
1229 HWSIM_TM_CMD_WAKE_QUEUES = 3,
Johannes Bergaff89a92009-07-01 21:26:51 +02001230};
1231
1232static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
1233 [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
1234 [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
1235};
1236
1237static int hwsim_fops_ps_write(void *dat, u64 val);
1238
Johannes Berg5bc38192009-07-07 11:00:55 +02001239static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
1240 void *data, int len)
Johannes Bergaff89a92009-07-01 21:26:51 +02001241{
1242 struct mac80211_hwsim_data *hwsim = hw->priv;
1243 struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
1244 struct sk_buff *skb;
1245 int err, ps;
1246
1247 err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
1248 hwsim_testmode_policy);
1249 if (err)
1250 return err;
1251
1252 if (!tb[HWSIM_TM_ATTR_CMD])
1253 return -EINVAL;
1254
1255 switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
1256 case HWSIM_TM_CMD_SET_PS:
1257 if (!tb[HWSIM_TM_ATTR_PS])
1258 return -EINVAL;
1259 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
1260 return hwsim_fops_ps_write(hwsim, ps);
1261 case HWSIM_TM_CMD_GET_PS:
1262 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
1263 nla_total_size(sizeof(u32)));
1264 if (!skb)
1265 return -ENOMEM;
David S. Miller633c9382012-04-01 21:03:30 -04001266 if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
1267 goto nla_put_failure;
Johannes Bergaff89a92009-07-01 21:26:51 +02001268 return cfg80211_testmode_reply(skb);
Johannes Berg4d6d0ae2012-07-04 12:58:40 +02001269 case HWSIM_TM_CMD_STOP_QUEUES:
1270 ieee80211_stop_queues(hw);
1271 return 0;
1272 case HWSIM_TM_CMD_WAKE_QUEUES:
1273 ieee80211_wake_queues(hw);
1274 return 0;
Johannes Bergaff89a92009-07-01 21:26:51 +02001275 default:
1276 return -EOPNOTSUPP;
1277 }
1278
1279 nla_put_failure:
1280 kfree_skb(skb);
1281 return -ENOBUFS;
1282}
1283#endif
1284
Johannes Berg8b73d132009-12-01 14:24:24 +01001285static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
1286 struct ieee80211_vif *vif,
1287 enum ieee80211_ampdu_mlme_action action,
Johannes Berg0b01f032011-01-18 13:51:05 +01001288 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
1289 u8 buf_size)
Johannes Berg8b73d132009-12-01 14:24:24 +01001290{
1291 switch (action) {
1292 case IEEE80211_AMPDU_TX_START:
1293 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1294 break;
1295 case IEEE80211_AMPDU_TX_STOP:
1296 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1297 break;
1298 case IEEE80211_AMPDU_TX_OPERATIONAL:
1299 break;
1300 case IEEE80211_AMPDU_RX_START:
1301 case IEEE80211_AMPDU_RX_STOP:
1302 break;
1303 default:
1304 return -EOPNOTSUPP;
1305 }
1306
1307 return 0;
1308}
1309
Johannes Berga80f7c02009-12-23 13:15:32 +01001310static void mac80211_hwsim_flush(struct ieee80211_hw *hw, bool drop)
1311{
Javier Lopez78825132011-06-01 11:26:13 +02001312 /* Not implemented, queues only on kernel side */
Johannes Berga80f7c02009-12-23 13:15:32 +01001313}
1314
Johannes Berge8261172012-07-27 19:48:26 +02001315static void hw_scan_work(struct work_struct *work)
Johannes Berg69068032010-02-03 10:47:55 +01001316{
Johannes Berge8261172012-07-27 19:48:26 +02001317 struct mac80211_hwsim_data *hwsim =
1318 container_of(work, struct mac80211_hwsim_data, hw_scan.work);
1319 struct cfg80211_scan_request *req = hwsim->hw_scan_request;
1320 int dwell, i;
Johannes Berg69068032010-02-03 10:47:55 +01001321
Johannes Berge8261172012-07-27 19:48:26 +02001322 mutex_lock(&hwsim->mutex);
1323 if (hwsim->scan_chan_idx >= req->n_channels) {
1324 wiphy_debug(hwsim->hw->wiphy, "hw scan complete\n");
1325 ieee80211_scan_completed(hwsim->hw, false);
1326 hwsim->hw_scan_request = NULL;
1327 hwsim->hw_scan_vif = NULL;
1328 hwsim->tmp_chan = NULL;
1329 mutex_unlock(&hwsim->mutex);
1330 return;
1331 }
1332
1333 wiphy_debug(hwsim->hw->wiphy, "hw scan %d MHz\n",
1334 req->channels[hwsim->scan_chan_idx]->center_freq);
1335
1336 hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
1337 if (hwsim->tmp_chan->flags & IEEE80211_CHAN_PASSIVE_SCAN ||
1338 !req->n_ssids) {
1339 dwell = 120;
1340 } else {
1341 dwell = 30;
1342 /* send probes */
1343 for (i = 0; i < req->n_ssids; i++) {
1344 struct sk_buff *probe;
1345
1346 probe = ieee80211_probereq_get(hwsim->hw,
1347 hwsim->hw_scan_vif,
1348 req->ssids[i].ssid,
1349 req->ssids[i].ssid_len,
1350 req->ie, req->ie_len);
1351 if (!probe)
1352 continue;
1353 local_bh_disable();
1354 mac80211_hwsim_tx_frame(hwsim->hw, probe,
1355 hwsim->tmp_chan);
1356 local_bh_enable();
1357 }
1358 }
1359 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
1360 msecs_to_jiffies(dwell));
1361 hwsim->scan_chan_idx++;
1362 mutex_unlock(&hwsim->mutex);
Johannes Berg69068032010-02-03 10:47:55 +01001363}
1364
1365static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
Johannes Berga060bbf2010-04-27 11:59:34 +02001366 struct ieee80211_vif *vif,
Johannes Berg69068032010-02-03 10:47:55 +01001367 struct cfg80211_scan_request *req)
1368{
Johannes Berge8261172012-07-27 19:48:26 +02001369 struct mac80211_hwsim_data *hwsim = hw->priv;
Johannes Berg69068032010-02-03 10:47:55 +01001370
Johannes Berge8261172012-07-27 19:48:26 +02001371 mutex_lock(&hwsim->mutex);
1372 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1373 mutex_unlock(&hwsim->mutex);
1374 return -EBUSY;
1375 }
1376 hwsim->hw_scan_request = req;
1377 hwsim->hw_scan_vif = vif;
1378 hwsim->scan_chan_idx = 0;
1379 mutex_unlock(&hwsim->mutex);
Johannes Berg69068032010-02-03 10:47:55 +01001380
Johannes Berge8261172012-07-27 19:48:26 +02001381 wiphy_debug(hw->wiphy, "hwsim hw_scan request\n");
Johannes Berg69068032010-02-03 10:47:55 +01001382
Johannes Berge8261172012-07-27 19:48:26 +02001383 ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
Johannes Berg69068032010-02-03 10:47:55 +01001384
1385 return 0;
1386}
1387
Johannes Berge8261172012-07-27 19:48:26 +02001388static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
1389 struct ieee80211_vif *vif)
1390{
1391 struct mac80211_hwsim_data *hwsim = hw->priv;
1392
1393 wiphy_debug(hw->wiphy, "hwsim cancel_hw_scan\n");
1394
1395 cancel_delayed_work_sync(&hwsim->hw_scan);
1396
1397 mutex_lock(&hwsim->mutex);
1398 ieee80211_scan_completed(hwsim->hw, true);
1399 hwsim->tmp_chan = NULL;
1400 hwsim->hw_scan_request = NULL;
1401 hwsim->hw_scan_vif = NULL;
1402 mutex_unlock(&hwsim->mutex);
1403}
1404
Luis R. Rodriguezf74cb0f2010-04-08 11:50:47 -04001405static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw)
1406{
1407 struct mac80211_hwsim_data *hwsim = hw->priv;
1408
1409 mutex_lock(&hwsim->mutex);
1410
1411 if (hwsim->scanning) {
1412 printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
1413 goto out;
1414 }
1415
1416 printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
1417 hwsim->scanning = true;
1418
1419out:
1420 mutex_unlock(&hwsim->mutex);
1421}
1422
1423static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw)
1424{
1425 struct mac80211_hwsim_data *hwsim = hw->priv;
1426
1427 mutex_lock(&hwsim->mutex);
1428
1429 printk(KERN_DEBUG "hwsim sw_scan_complete\n");
Johannes Berg23ff98f2010-05-03 09:21:14 +02001430 hwsim->scanning = false;
Luis R. Rodriguezf74cb0f2010-04-08 11:50:47 -04001431
1432 mutex_unlock(&hwsim->mutex);
1433}
1434
Johannes Berge8261172012-07-27 19:48:26 +02001435static void hw_roc_done(struct work_struct *work)
1436{
1437 struct mac80211_hwsim_data *hwsim =
1438 container_of(work, struct mac80211_hwsim_data, roc_done.work);
1439
1440 mutex_lock(&hwsim->mutex);
1441 ieee80211_remain_on_channel_expired(hwsim->hw);
1442 hwsim->tmp_chan = NULL;
1443 mutex_unlock(&hwsim->mutex);
1444
1445 wiphy_debug(hwsim->hw->wiphy, "hwsim ROC expired\n");
1446}
1447
1448static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
Eliad Peller49884562012-11-19 17:05:09 +02001449 struct ieee80211_vif *vif,
Johannes Berge8261172012-07-27 19:48:26 +02001450 struct ieee80211_channel *chan,
Johannes Berge8261172012-07-27 19:48:26 +02001451 int duration)
1452{
1453 struct mac80211_hwsim_data *hwsim = hw->priv;
1454
1455 mutex_lock(&hwsim->mutex);
1456 if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
1457 mutex_unlock(&hwsim->mutex);
1458 return -EBUSY;
1459 }
1460
1461 hwsim->tmp_chan = chan;
1462 mutex_unlock(&hwsim->mutex);
1463
1464 wiphy_debug(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
1465 chan->center_freq, duration);
1466
1467 ieee80211_ready_on_channel(hw);
1468
1469 ieee80211_queue_delayed_work(hw, &hwsim->roc_done,
1470 msecs_to_jiffies(duration));
1471 return 0;
1472}
1473
1474static int mac80211_hwsim_croc(struct ieee80211_hw *hw)
1475{
1476 struct mac80211_hwsim_data *hwsim = hw->priv;
1477
1478 cancel_delayed_work_sync(&hwsim->roc_done);
1479
1480 mutex_lock(&hwsim->mutex);
1481 hwsim->tmp_chan = NULL;
1482 mutex_unlock(&hwsim->mutex);
1483
1484 wiphy_debug(hw->wiphy, "hwsim ROC canceled\n");
1485
1486 return 0;
1487}
1488
1489static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
1490 struct ieee80211_chanctx_conf *ctx)
1491{
1492 hwsim_set_chanctx_magic(ctx);
Johannes Berg4bf88532012-11-09 11:39:59 +01001493 wiphy_debug(hw->wiphy,
1494 "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1495 ctx->def.chan->center_freq, ctx->def.width,
1496 ctx->def.center_freq1, ctx->def.center_freq2);
Johannes Berge8261172012-07-27 19:48:26 +02001497 return 0;
1498}
1499
1500static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
1501 struct ieee80211_chanctx_conf *ctx)
1502{
Johannes Berg4bf88532012-11-09 11:39:59 +01001503 wiphy_debug(hw->wiphy,
1504 "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1505 ctx->def.chan->center_freq, ctx->def.width,
1506 ctx->def.center_freq1, ctx->def.center_freq2);
Johannes Berge8261172012-07-27 19:48:26 +02001507 hwsim_check_chanctx_magic(ctx);
1508 hwsim_clear_chanctx_magic(ctx);
1509}
1510
1511static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
1512 struct ieee80211_chanctx_conf *ctx,
1513 u32 changed)
1514{
1515 hwsim_check_chanctx_magic(ctx);
Johannes Berg4bf88532012-11-09 11:39:59 +01001516 wiphy_debug(hw->wiphy,
1517 "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
1518 ctx->def.chan->center_freq, ctx->def.width,
1519 ctx->def.center_freq1, ctx->def.center_freq2);
Johannes Berge8261172012-07-27 19:48:26 +02001520}
1521
1522static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
1523 struct ieee80211_vif *vif,
1524 struct ieee80211_chanctx_conf *ctx)
1525{
1526 hwsim_check_magic(vif);
1527 hwsim_check_chanctx_magic(ctx);
1528
1529 return 0;
1530}
1531
1532static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
1533 struct ieee80211_vif *vif,
1534 struct ieee80211_chanctx_conf *ctx)
1535{
1536 hwsim_check_magic(vif);
1537 hwsim_check_chanctx_magic(ctx);
1538}
1539
Johannes Berg69068032010-02-03 10:47:55 +01001540static struct ieee80211_ops mac80211_hwsim_ops =
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03001541{
1542 .tx = mac80211_hwsim_tx,
1543 .start = mac80211_hwsim_start,
1544 .stop = mac80211_hwsim_stop,
1545 .add_interface = mac80211_hwsim_add_interface,
Johannes Bergc35d0272010-08-27 12:35:59 +02001546 .change_interface = mac80211_hwsim_change_interface,
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03001547 .remove_interface = mac80211_hwsim_remove_interface,
1548 .config = mac80211_hwsim_config,
1549 .configure_filter = mac80211_hwsim_configure_filter,
Johannes Berg8aa21e62008-09-11 02:16:36 +02001550 .bss_info_changed = mac80211_hwsim_bss_info_changed,
Johannes Berg1d669cb2010-02-19 19:06:55 +01001551 .sta_add = mac80211_hwsim_sta_add,
1552 .sta_remove = mac80211_hwsim_sta_remove,
Johannes Berg8aa21e62008-09-11 02:16:36 +02001553 .sta_notify = mac80211_hwsim_sta_notify,
Johannes Berg81c06522008-09-11 02:17:01 +02001554 .set_tim = mac80211_hwsim_set_tim,
Jouni Malinen1e898ff82008-10-30 16:59:23 +02001555 .conf_tx = mac80211_hwsim_conf_tx,
Holger Schurig12897232010-04-19 10:23:57 +02001556 .get_survey = mac80211_hwsim_get_survey,
Johannes Bergaff89a92009-07-01 21:26:51 +02001557 CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
Johannes Berg8b73d132009-12-01 14:24:24 +01001558 .ampdu_action = mac80211_hwsim_ampdu_action,
Luis R. Rodriguezf74cb0f2010-04-08 11:50:47 -04001559 .sw_scan_start = mac80211_hwsim_sw_scan,
1560 .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
Johannes Berga80f7c02009-12-23 13:15:32 +01001561 .flush = mac80211_hwsim_flush,
Javier Cardona12ce8ba2012-03-05 17:20:38 -08001562 .get_tsf = mac80211_hwsim_get_tsf,
1563 .set_tsf = mac80211_hwsim_set_tsf,
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03001564};
1565
1566
1567static void mac80211_hwsim_free(void)
1568{
Johannes Berg0e057d732008-09-12 00:39:22 +02001569 struct list_head tmplist, *i, *tmp;
Johannes Berge603d9d2009-07-13 13:25:58 +02001570 struct mac80211_hwsim_data *data, *tmpdata;
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03001571
Johannes Berg0e057d732008-09-12 00:39:22 +02001572 INIT_LIST_HEAD(&tmplist);
1573
1574 spin_lock_bh(&hwsim_radio_lock);
1575 list_for_each_safe(i, tmp, &hwsim_radios)
1576 list_move(i, &tmplist);
1577 spin_unlock_bh(&hwsim_radio_lock);
1578
Johannes Berge603d9d2009-07-13 13:25:58 +02001579 list_for_each_entry_safe(data, tmpdata, &tmplist, list) {
Daniel Wagner73606d02009-05-18 19:49:25 +02001580 debugfs_remove(data->debugfs_group);
Jouni Malinenfc6971d2008-10-30 19:59:05 +02001581 debugfs_remove(data->debugfs_ps);
1582 debugfs_remove(data->debugfs);
Johannes Berg0e057d732008-09-12 00:39:22 +02001583 ieee80211_unregister_hw(data->hw);
1584 device_unregister(data->dev);
1585 ieee80211_free_hw(data->hw);
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03001586 }
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03001587 class_destroy(hwsim_class);
1588}
1589
1590
1591static struct device_driver mac80211_hwsim_driver = {
1592 .name = "mac80211_hwsim"
1593};
1594
Stephen Hemminger98d2faa2009-03-20 19:36:33 +00001595static const struct net_device_ops hwsim_netdev_ops = {
1596 .ndo_start_xmit = hwsim_mon_xmit,
1597 .ndo_change_mtu = eth_change_mtu,
1598 .ndo_set_mac_address = eth_mac_addr,
1599 .ndo_validate_addr = eth_validate_addr,
1600};
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03001601
1602static void hwsim_mon_setup(struct net_device *dev)
1603{
Stephen Hemminger98d2faa2009-03-20 19:36:33 +00001604 dev->netdev_ops = &hwsim_netdev_ops;
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03001605 dev->destructor = free_netdev;
1606 ether_setup(dev);
1607 dev->tx_queue_len = 0;
1608 dev->type = ARPHRD_IEEE80211_RADIOTAP;
1609 memset(dev->dev_addr, 0, ETH_ALEN);
1610 dev->dev_addr[0] = 0x12;
1611}
1612
1613
Jouni Malinenfc6971d2008-10-30 19:59:05 +02001614static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
1615{
1616 struct mac80211_hwsim_data *data = dat;
1617 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
Jouni Malinenfc6971d2008-10-30 19:59:05 +02001618 struct sk_buff *skb;
1619 struct ieee80211_pspoll *pspoll;
1620
1621 if (!vp->assoc)
1622 return;
1623
Joe Perchesc96c31e2010-07-26 14:39:58 -07001624 wiphy_debug(data->hw->wiphy,
1625 "%s: send PS-Poll to %pM for aid %d\n",
1626 __func__, vp->bssid, vp->aid);
Jouni Malinenfc6971d2008-10-30 19:59:05 +02001627
1628 skb = dev_alloc_skb(sizeof(*pspoll));
1629 if (!skb)
1630 return;
1631 pspoll = (void *) skb_put(skb, sizeof(*pspoll));
1632 pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
1633 IEEE80211_STYPE_PSPOLL |
1634 IEEE80211_FCTL_PM);
1635 pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
1636 memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
1637 memcpy(pspoll->ta, mac, ETH_ALEN);
Javier Lopez78825132011-06-01 11:26:13 +02001638
Johannes Berge8261172012-07-27 19:48:26 +02001639 rcu_read_lock();
1640 mac80211_hwsim_tx_frame(data->hw, skb,
Johannes Berg4bf88532012-11-09 11:39:59 +01001641 rcu_dereference(vif->chanctx_conf)->def.chan);
Johannes Berge8261172012-07-27 19:48:26 +02001642 rcu_read_unlock();
Jouni Malinenfc6971d2008-10-30 19:59:05 +02001643}
1644
Jouni Malinenfc6971d2008-10-30 19:59:05 +02001645static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
1646 struct ieee80211_vif *vif, int ps)
1647{
1648 struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
Jouni Malinenfc6971d2008-10-30 19:59:05 +02001649 struct sk_buff *skb;
1650 struct ieee80211_hdr *hdr;
1651
1652 if (!vp->assoc)
1653 return;
1654
Joe Perchesc96c31e2010-07-26 14:39:58 -07001655 wiphy_debug(data->hw->wiphy,
1656 "%s: send data::nullfunc to %pM ps=%d\n",
1657 __func__, vp->bssid, ps);
Jouni Malinenfc6971d2008-10-30 19:59:05 +02001658
1659 skb = dev_alloc_skb(sizeof(*hdr));
1660 if (!skb)
1661 return;
1662 hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
1663 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1664 IEEE80211_STYPE_NULLFUNC |
1665 (ps ? IEEE80211_FCTL_PM : 0));
1666 hdr->duration_id = cpu_to_le16(0);
1667 memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
1668 memcpy(hdr->addr2, mac, ETH_ALEN);
1669 memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
Javier Lopez78825132011-06-01 11:26:13 +02001670
Johannes Berge8261172012-07-27 19:48:26 +02001671 rcu_read_lock();
1672 mac80211_hwsim_tx_frame(data->hw, skb,
Johannes Berg4bf88532012-11-09 11:39:59 +01001673 rcu_dereference(vif->chanctx_conf)->def.chan);
Johannes Berge8261172012-07-27 19:48:26 +02001674 rcu_read_unlock();
Jouni Malinenfc6971d2008-10-30 19:59:05 +02001675}
1676
1677
1678static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
1679 struct ieee80211_vif *vif)
1680{
1681 struct mac80211_hwsim_data *data = dat;
1682 hwsim_send_nullfunc(data, mac, vif, 1);
1683}
1684
1685
1686static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
1687 struct ieee80211_vif *vif)
1688{
1689 struct mac80211_hwsim_data *data = dat;
1690 hwsim_send_nullfunc(data, mac, vif, 0);
1691}
1692
1693
1694static int hwsim_fops_ps_read(void *dat, u64 *val)
1695{
1696 struct mac80211_hwsim_data *data = dat;
1697 *val = data->ps;
1698 return 0;
1699}
1700
1701static int hwsim_fops_ps_write(void *dat, u64 val)
1702{
1703 struct mac80211_hwsim_data *data = dat;
1704 enum ps_mode old_ps;
1705
1706 if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
1707 val != PS_MANUAL_POLL)
1708 return -EINVAL;
1709
1710 old_ps = data->ps;
1711 data->ps = val;
1712
1713 if (val == PS_MANUAL_POLL) {
1714 ieee80211_iterate_active_interfaces(data->hw,
Johannes Berg8b2c9822012-11-06 20:23:30 +01001715 IEEE80211_IFACE_ITER_NORMAL,
Jouni Malinenfc6971d2008-10-30 19:59:05 +02001716 hwsim_send_ps_poll, data);
1717 data->ps_poll_pending = true;
1718 } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
1719 ieee80211_iterate_active_interfaces(data->hw,
Johannes Berg8b2c9822012-11-06 20:23:30 +01001720 IEEE80211_IFACE_ITER_NORMAL,
Jouni Malinenfc6971d2008-10-30 19:59:05 +02001721 hwsim_send_nullfunc_ps,
1722 data);
1723 } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
1724 ieee80211_iterate_active_interfaces(data->hw,
Johannes Berg8b2c9822012-11-06 20:23:30 +01001725 IEEE80211_IFACE_ITER_NORMAL,
Jouni Malinenfc6971d2008-10-30 19:59:05 +02001726 hwsim_send_nullfunc_no_ps,
1727 data);
1728 }
1729
1730 return 0;
1731}
1732
1733DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
1734 "%llu\n");
1735
1736
Daniel Wagner73606d02009-05-18 19:49:25 +02001737static int hwsim_fops_group_read(void *dat, u64 *val)
1738{
1739 struct mac80211_hwsim_data *data = dat;
1740 *val = data->group;
1741 return 0;
1742}
1743
1744static int hwsim_fops_group_write(void *dat, u64 val)
1745{
1746 struct mac80211_hwsim_data *data = dat;
1747 data->group = val;
1748 return 0;
1749}
1750
1751DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
1752 hwsim_fops_group_read, hwsim_fops_group_write,
1753 "%llx\n");
1754
Javier Cardonaf483ad22012-03-31 11:31:30 -07001755static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(
Javier Lopez78825132011-06-01 11:26:13 +02001756 struct mac_address *addr)
1757{
1758 struct mac80211_hwsim_data *data;
1759 bool _found = false;
1760
1761 spin_lock_bh(&hwsim_radio_lock);
1762 list_for_each_entry(data, &hwsim_radios, list) {
1763 if (memcmp(data->addresses[1].addr, addr,
1764 sizeof(struct mac_address)) == 0) {
1765 _found = true;
1766 break;
1767 }
1768 }
1769 spin_unlock_bh(&hwsim_radio_lock);
1770
1771 if (!_found)
1772 return NULL;
1773
1774 return data;
1775}
1776
1777static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
1778 struct genl_info *info)
1779{
1780
1781 struct ieee80211_hdr *hdr;
1782 struct mac80211_hwsim_data *data2;
1783 struct ieee80211_tx_info *txi;
1784 struct hwsim_tx_rate *tx_attempts;
Johannes Bergd0f718c2012-06-25 14:46:44 +02001785 unsigned long ret_skb_ptr;
Javier Lopez78825132011-06-01 11:26:13 +02001786 struct sk_buff *skb, *tmp;
1787 struct mac_address *src;
1788 unsigned int hwsim_flags;
1789
1790 int i;
1791 bool found = false;
1792
1793 if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
1794 !info->attrs[HWSIM_ATTR_FLAGS] ||
1795 !info->attrs[HWSIM_ATTR_COOKIE] ||
1796 !info->attrs[HWSIM_ATTR_TX_INFO])
1797 goto out;
1798
1799 src = (struct mac_address *)nla_data(
1800 info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
1801 hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
1802
Johannes Bergd0f718c2012-06-25 14:46:44 +02001803 ret_skb_ptr = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
Javier Lopez78825132011-06-01 11:26:13 +02001804
1805 data2 = get_hwsim_data_ref_from_addr(src);
1806
1807 if (data2 == NULL)
1808 goto out;
1809
1810 /* look for the skb matching the cookie passed back from user */
1811 skb_queue_walk_safe(&data2->pending, skb, tmp) {
Johannes Bergd0f718c2012-06-25 14:46:44 +02001812 if ((unsigned long)skb == ret_skb_ptr) {
Javier Lopez78825132011-06-01 11:26:13 +02001813 skb_unlink(skb, &data2->pending);
1814 found = true;
1815 break;
1816 }
1817 }
1818
1819 /* not found */
1820 if (!found)
1821 goto out;
1822
1823 /* Tx info received because the frame was broadcasted on user space,
1824 so we get all the necessary info: tx attempts and skb control buff */
1825
1826 tx_attempts = (struct hwsim_tx_rate *)nla_data(
1827 info->attrs[HWSIM_ATTR_TX_INFO]);
1828
1829 /* now send back TX status */
1830 txi = IEEE80211_SKB_CB(skb);
1831
Javier Lopez78825132011-06-01 11:26:13 +02001832 ieee80211_tx_info_clear_status(txi);
1833
1834 for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
1835 txi->status.rates[i].idx = tx_attempts[i].idx;
1836 txi->status.rates[i].count = tx_attempts[i].count;
1837 /*txi->status.rates[i].flags = 0;*/
1838 }
1839
1840 txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
1841
1842 if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
1843 (hwsim_flags & HWSIM_TX_STAT_ACK)) {
1844 if (skb->len >= 16) {
1845 hdr = (struct ieee80211_hdr *) skb->data;
Johannes Berge8261172012-07-27 19:48:26 +02001846 mac80211_hwsim_monitor_ack(txi->rate_driver_data[0],
1847 hdr->addr2);
Javier Lopez78825132011-06-01 11:26:13 +02001848 }
Qasim Javed06cf5c42012-06-05 01:25:44 -05001849 txi->flags |= IEEE80211_TX_STAT_ACK;
Javier Lopez78825132011-06-01 11:26:13 +02001850 }
1851 ieee80211_tx_status_irqsafe(data2->hw, skb);
1852 return 0;
1853out:
1854 return -EINVAL;
1855
1856}
1857
1858static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
1859 struct genl_info *info)
1860{
1861
Johannes Berge8261172012-07-27 19:48:26 +02001862 struct mac80211_hwsim_data *data2;
Javier Lopez78825132011-06-01 11:26:13 +02001863 struct ieee80211_rx_status rx_status;
1864 struct mac_address *dst;
1865 int frame_data_len;
1866 char *frame_data;
1867 struct sk_buff *skb = NULL;
1868
1869 if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
Johannes Berge8261172012-07-27 19:48:26 +02001870 !info->attrs[HWSIM_ATTR_FRAME] ||
1871 !info->attrs[HWSIM_ATTR_RX_RATE] ||
1872 !info->attrs[HWSIM_ATTR_SIGNAL])
Javier Lopez78825132011-06-01 11:26:13 +02001873 goto out;
1874
1875 dst = (struct mac_address *)nla_data(
1876 info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
1877
1878 frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
1879 frame_data = (char *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
1880
1881 /* Allocate new skb here */
1882 skb = alloc_skb(frame_data_len, GFP_KERNEL);
1883 if (skb == NULL)
1884 goto err;
1885
1886 if (frame_data_len <= IEEE80211_MAX_DATA_LEN) {
1887 /* Copy the data */
1888 memcpy(skb_put(skb, frame_data_len), frame_data,
1889 frame_data_len);
1890 } else
1891 goto err;
1892
1893 data2 = get_hwsim_data_ref_from_addr(dst);
1894
1895 if (data2 == NULL)
1896 goto out;
1897
1898 /* check if radio is configured properly */
1899
Johannes Berge8261172012-07-27 19:48:26 +02001900 if (data2->idle || !data2->started)
Javier Lopez78825132011-06-01 11:26:13 +02001901 goto out;
1902
1903 /*A frame is received from user space*/
1904 memset(&rx_status, 0, sizeof(rx_status));
1905 rx_status.freq = data2->channel->center_freq;
1906 rx_status.band = data2->channel->band;
1907 rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
1908 rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
1909
1910 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
1911 ieee80211_rx_irqsafe(data2->hw, skb);
1912
1913 return 0;
1914err:
Masanari Iidac3938622012-02-17 23:04:10 +09001915 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
Javier Lopez78825132011-06-01 11:26:13 +02001916 goto out;
1917out:
1918 dev_kfree_skb(skb);
1919 return -EINVAL;
1920}
1921
1922static int hwsim_register_received_nl(struct sk_buff *skb_2,
1923 struct genl_info *info)
1924{
1925 if (info == NULL)
1926 goto out;
1927
Eric W. Biederman15e47302012-09-07 20:12:54 +00001928 wmediumd_portid = info->snd_portid;
Javier Lopez78825132011-06-01 11:26:13 +02001929
1930 printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
Eric W. Biederman15e47302012-09-07 20:12:54 +00001931 "switching to wmediumd mode with pid %d\n", info->snd_portid);
Javier Lopez78825132011-06-01 11:26:13 +02001932
1933 return 0;
1934out:
Masanari Iidac3938622012-02-17 23:04:10 +09001935 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
Javier Lopez78825132011-06-01 11:26:13 +02001936 return -EINVAL;
1937}
1938
1939/* Generic Netlink operations array */
1940static struct genl_ops hwsim_ops[] = {
1941 {
1942 .cmd = HWSIM_CMD_REGISTER,
1943 .policy = hwsim_genl_policy,
1944 .doit = hwsim_register_received_nl,
1945 .flags = GENL_ADMIN_PERM,
1946 },
1947 {
1948 .cmd = HWSIM_CMD_FRAME,
1949 .policy = hwsim_genl_policy,
1950 .doit = hwsim_cloned_frame_received_nl,
1951 },
1952 {
1953 .cmd = HWSIM_CMD_TX_INFO_FRAME,
1954 .policy = hwsim_genl_policy,
1955 .doit = hwsim_tx_info_frame_received_nl,
1956 },
1957};
1958
1959static int mac80211_hwsim_netlink_notify(struct notifier_block *nb,
1960 unsigned long state,
1961 void *_notify)
1962{
1963 struct netlink_notify *notify = _notify;
1964
1965 if (state != NETLINK_URELEASE)
1966 return NOTIFY_DONE;
1967
Eric W. Biederman15e47302012-09-07 20:12:54 +00001968 if (notify->portid == wmediumd_portid) {
Javier Lopez78825132011-06-01 11:26:13 +02001969 printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink"
1970 " socket, switching to perfect channel medium\n");
Eric W. Biederman15e47302012-09-07 20:12:54 +00001971 wmediumd_portid = 0;
Javier Lopez78825132011-06-01 11:26:13 +02001972 }
1973 return NOTIFY_DONE;
1974
1975}
1976
1977static struct notifier_block hwsim_netlink_notifier = {
1978 .notifier_call = mac80211_hwsim_netlink_notify,
1979};
1980
1981static int hwsim_init_netlink(void)
1982{
1983 int rc;
Johannes Berge8261172012-07-27 19:48:26 +02001984
1985 /* userspace test API hasn't been adjusted for multi-channel */
1986 if (channels > 1)
1987 return 0;
1988
Javier Lopez78825132011-06-01 11:26:13 +02001989 printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
1990
Javier Lopez78825132011-06-01 11:26:13 +02001991 rc = genl_register_family_with_ops(&hwsim_genl_family,
1992 hwsim_ops, ARRAY_SIZE(hwsim_ops));
1993 if (rc)
1994 goto failure;
1995
1996 rc = netlink_register_notifier(&hwsim_netlink_notifier);
1997 if (rc)
1998 goto failure;
1999
2000 return 0;
2001
2002failure:
Masanari Iidac3938622012-02-17 23:04:10 +09002003 printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
Javier Lopez78825132011-06-01 11:26:13 +02002004 return -EINVAL;
2005}
2006
2007static void hwsim_exit_netlink(void)
2008{
2009 int ret;
2010
Johannes Berge8261172012-07-27 19:48:26 +02002011 /* userspace test API hasn't been adjusted for multi-channel */
2012 if (channels > 1)
2013 return;
2014
Javier Lopez78825132011-06-01 11:26:13 +02002015 printk(KERN_INFO "mac80211_hwsim: closing netlink\n");
2016 /* unregister the notifier */
2017 netlink_unregister_notifier(&hwsim_netlink_notifier);
2018 /* unregister the family */
2019 ret = genl_unregister_family(&hwsim_genl_family);
2020 if (ret)
2021 printk(KERN_DEBUG "mac80211_hwsim: "
2022 "unregister family %i\n", ret);
2023}
2024
Johannes Berg1ae2fc22012-05-30 14:59:36 +02002025static const struct ieee80211_iface_limit hwsim_if_limits[] = {
2026 { .max = 1, .types = BIT(NL80211_IFTYPE_ADHOC) },
2027 { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) |
2028 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2029#ifdef CONFIG_MAC80211_MESH
2030 BIT(NL80211_IFTYPE_MESH_POINT) |
2031#endif
2032 BIT(NL80211_IFTYPE_AP) |
2033 BIT(NL80211_IFTYPE_P2P_GO) },
Johannes Berg8b3d1cc2012-06-19 17:29:29 +02002034 { .max = 1, .types = BIT(NL80211_IFTYPE_P2P_DEVICE) },
Johannes Berg1ae2fc22012-05-30 14:59:36 +02002035};
2036
Johannes Berge8261172012-07-27 19:48:26 +02002037static struct ieee80211_iface_combination hwsim_if_comb = {
Johannes Berg1ae2fc22012-05-30 14:59:36 +02002038 .limits = hwsim_if_limits,
2039 .n_limits = ARRAY_SIZE(hwsim_if_limits),
2040 .max_interfaces = 2048,
2041 .num_different_channels = 1,
2042};
2043
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03002044static int __init init_mac80211_hwsim(void)
2045{
2046 int i, err = 0;
2047 u8 addr[ETH_ALEN];
2048 struct mac80211_hwsim_data *data;
2049 struct ieee80211_hw *hw;
Luis R. Rodriguez22cad732009-03-05 21:13:06 -08002050 enum ieee80211_band band;
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03002051
Johannes Berg0e057d732008-09-12 00:39:22 +02002052 if (radios < 1 || radios > 100)
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03002053 return -EINVAL;
2054
Johannes Berge8261172012-07-27 19:48:26 +02002055 if (channels < 1)
2056 return -EINVAL;
2057
2058 if (channels > 1) {
2059 hwsim_if_comb.num_different_channels = channels;
Johannes Berg69068032010-02-03 10:47:55 +01002060 mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan;
Johannes Berge8261172012-07-27 19:48:26 +02002061 mac80211_hwsim_ops.cancel_hw_scan =
2062 mac80211_hwsim_cancel_hw_scan;
Luis R. Rodriguezf74cb0f2010-04-08 11:50:47 -04002063 mac80211_hwsim_ops.sw_scan_start = NULL;
2064 mac80211_hwsim_ops.sw_scan_complete = NULL;
Johannes Berge8261172012-07-27 19:48:26 +02002065 mac80211_hwsim_ops.remain_on_channel =
2066 mac80211_hwsim_roc;
2067 mac80211_hwsim_ops.cancel_remain_on_channel =
2068 mac80211_hwsim_croc;
2069 mac80211_hwsim_ops.add_chanctx =
2070 mac80211_hwsim_add_chanctx;
2071 mac80211_hwsim_ops.remove_chanctx =
2072 mac80211_hwsim_remove_chanctx;
2073 mac80211_hwsim_ops.change_chanctx =
2074 mac80211_hwsim_change_chanctx;
2075 mac80211_hwsim_ops.assign_vif_chanctx =
2076 mac80211_hwsim_assign_vif_chanctx;
2077 mac80211_hwsim_ops.unassign_vif_chanctx =
2078 mac80211_hwsim_unassign_vif_chanctx;
Luis R. Rodriguezf74cb0f2010-04-08 11:50:47 -04002079 }
Johannes Berg69068032010-02-03 10:47:55 +01002080
Johannes Berg0e057d732008-09-12 00:39:22 +02002081 spin_lock_init(&hwsim_radio_lock);
2082 INIT_LIST_HEAD(&hwsim_radios);
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03002083
2084 hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
Johannes Berg0e057d732008-09-12 00:39:22 +02002085 if (IS_ERR(hwsim_class))
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03002086 return PTR_ERR(hwsim_class);
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03002087
2088 memset(addr, 0, ETH_ALEN);
2089 addr[0] = 0x02;
2090
Johannes Berg0e057d732008-09-12 00:39:22 +02002091 for (i = 0; i < radios; i++) {
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03002092 printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
2093 i);
2094 hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);
Johannes Berg0e057d732008-09-12 00:39:22 +02002095 if (!hw) {
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03002096 printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
2097 "failed\n");
2098 err = -ENOMEM;
2099 goto failed;
2100 }
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03002101 data = hw->priv;
Johannes Berg0e057d732008-09-12 00:39:22 +02002102 data->hw = hw;
2103
Greg Kroah-Hartman6e05d6c2008-07-21 20:03:34 -07002104 data->dev = device_create(hwsim_class, NULL, 0, hw,
2105 "hwsim%d", i);
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03002106 if (IS_ERR(data->dev)) {
Stephen Rothwelle800f172008-06-16 15:35:10 +10002107 printk(KERN_DEBUG
Greg Kroah-Hartman6e05d6c2008-07-21 20:03:34 -07002108 "mac80211_hwsim: device_create "
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03002109 "failed (%ld)\n", PTR_ERR(data->dev));
2110 err = -ENOMEM;
Ian Schram3a33cc12008-07-21 13:19:35 -07002111 goto failed_drvdata;
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03002112 }
2113 data->dev->driver = &mac80211_hwsim_driver;
Javier Lopez78825132011-06-01 11:26:13 +02002114 skb_queue_head_init(&data->pending);
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03002115
2116 SET_IEEE80211_DEV(hw, data->dev);
2117 addr[3] = i >> 8;
2118 addr[4] = i;
Johannes Bergef15aac2010-01-20 12:02:33 +01002119 memcpy(data->addresses[0].addr, addr, ETH_ALEN);
2120 memcpy(data->addresses[1].addr, addr, ETH_ALEN);
2121 data->addresses[1].addr[0] |= 0x40;
2122 hw->wiphy->n_addresses = 2;
2123 hw->wiphy->addresses = data->addresses;
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03002124
Johannes Berg1ae2fc22012-05-30 14:59:36 +02002125 hw->wiphy->iface_combinations = &hwsim_if_comb;
2126 hw->wiphy->n_iface_combinations = 1;
2127
Johannes Berge8261172012-07-27 19:48:26 +02002128 if (channels > 1) {
Johannes Berg8223d2f2010-06-18 12:31:56 +02002129 hw->wiphy->max_scan_ssids = 255;
2130 hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
Johannes Berge8261172012-07-27 19:48:26 +02002131 hw->wiphy->max_remain_on_channel_duration = 1000;
Johannes Berg8223d2f2010-06-18 12:31:56 +02002132 }
2133
Johannes Berge8261172012-07-27 19:48:26 +02002134 INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
2135 INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
2136
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03002137 hw->channel_change_time = 1;
Johannes Berge8261172012-07-27 19:48:26 +02002138 hw->queues = 5;
2139 hw->offchannel_tx_hw_queue = 4;
Luis R. Rodriguezf59ac042008-08-29 16:26:43 -07002140 hw->wiphy->interface_modes =
2141 BIT(NL80211_IFTYPE_STATION) |
Andrey Yurovsky55b39612008-10-31 23:23:35 -07002142 BIT(NL80211_IFTYPE_AP) |
Johannes Berg2ca27bc2010-09-16 14:58:23 +02002143 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2144 BIT(NL80211_IFTYPE_P2P_GO) |
Johannes Berg2b2d7792010-08-17 12:08:07 +02002145 BIT(NL80211_IFTYPE_ADHOC) |
Johannes Berg8b3d1cc2012-06-19 17:29:29 +02002146 BIT(NL80211_IFTYPE_MESH_POINT) |
2147 BIT(NL80211_IFTYPE_P2P_DEVICE);
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03002148
Johannes Berg4b14c962009-07-10 16:56:59 +02002149 hw->flags = IEEE80211_HW_MFP_CAPABLE |
Johannes Berg0f782312009-12-01 13:37:02 +01002150 IEEE80211_HW_SIGNAL_DBM |
2151 IEEE80211_HW_SUPPORTS_STATIC_SMPS |
Johannes Berga75b4362010-05-01 18:53:51 +02002152 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
Johannes Berg4b6f1dd2012-04-03 14:35:57 +02002153 IEEE80211_HW_AMPDU_AGGREGATION |
Johannes Berge8261172012-07-27 19:48:26 +02002154 IEEE80211_HW_WANT_MONITOR_VIF |
2155 IEEE80211_HW_QUEUE_CONTROL;
Jouni Malinenfa775332009-01-08 13:32:14 +02002156
Johannes Berg81ddbb52012-03-26 18:47:18 +02002157 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2158 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
Jouni Malinen43bc3e82011-10-23 22:45:27 +03002159
Johannes Berg8aa21e62008-09-11 02:16:36 +02002160 /* ask mac80211 to reserve space for magic */
2161 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
Johannes Berg81c06522008-09-11 02:17:01 +02002162 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
Johannes Berg8aa21e62008-09-11 02:16:36 +02002163
Luis R. Rodriguez22cad732009-03-05 21:13:06 -08002164 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
2165 sizeof(hwsim_channels_2ghz));
2166 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
2167 sizeof(hwsim_channels_5ghz));
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03002168 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
Luis R. Rodriguez22cad732009-03-05 21:13:06 -08002169
2170 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
2171 struct ieee80211_supported_band *sband = &data->bands[band];
2172 switch (band) {
2173 case IEEE80211_BAND_2GHZ:
2174 sband->channels = data->channels_2ghz;
2175 sband->n_channels =
2176 ARRAY_SIZE(hwsim_channels_2ghz);
Johannes Bergd130eb42009-10-27 20:53:58 +01002177 sband->bitrates = data->rates;
2178 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
Luis R. Rodriguez22cad732009-03-05 21:13:06 -08002179 break;
2180 case IEEE80211_BAND_5GHZ:
2181 sband->channels = data->channels_5ghz;
2182 sband->n_channels =
2183 ARRAY_SIZE(hwsim_channels_5ghz);
Johannes Bergd130eb42009-10-27 20:53:58 +01002184 sband->bitrates = data->rates + 4;
2185 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
Luis R. Rodriguez22cad732009-03-05 21:13:06 -08002186 break;
2187 default:
Johannes Berg1b083ea2012-07-03 13:14:49 +02002188 continue;
Luis R. Rodriguez22cad732009-03-05 21:13:06 -08002189 }
2190
Luis R. Rodriguez22cad732009-03-05 21:13:06 -08002191 sband->ht_cap.ht_supported = true;
2192 sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
2193 IEEE80211_HT_CAP_GRN_FLD |
2194 IEEE80211_HT_CAP_SGI_40 |
2195 IEEE80211_HT_CAP_DSSSCCK40;
2196 sband->ht_cap.ampdu_factor = 0x3;
2197 sband->ht_cap.ampdu_density = 0x6;
2198 memset(&sband->ht_cap.mcs, 0,
2199 sizeof(sband->ht_cap.mcs));
2200 sband->ht_cap.mcs.rx_mask[0] = 0xff;
2201 sband->ht_cap.mcs.rx_mask[1] = 0xff;
2202 sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2203
2204 hw->wiphy->bands[band] = sband;
Johannes Bergb2960052012-11-12 11:51:50 +01002205
2206 if (channels == 1)
2207 continue;
2208
2209 sband->vht_cap.vht_supported = true;
2210 sband->vht_cap.cap =
2211 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
2212 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
2213 IEEE80211_VHT_CAP_RXLDPC |
2214 IEEE80211_VHT_CAP_SHORT_GI_80 |
2215 IEEE80211_VHT_CAP_SHORT_GI_160 |
2216 IEEE80211_VHT_CAP_TXSTBC |
2217 IEEE80211_VHT_CAP_RXSTBC_1 |
2218 IEEE80211_VHT_CAP_RXSTBC_2 |
2219 IEEE80211_VHT_CAP_RXSTBC_3 |
2220 IEEE80211_VHT_CAP_RXSTBC_4 |
2221 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT;
2222 sband->vht_cap.vht_mcs.rx_mcs_map =
2223 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_8 << 0 |
2224 IEEE80211_VHT_MCS_SUPPORT_0_8 << 2 |
2225 IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
2226 IEEE80211_VHT_MCS_SUPPORT_0_8 << 6 |
2227 IEEE80211_VHT_MCS_SUPPORT_0_8 << 8 |
2228 IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
2229 IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
2230 IEEE80211_VHT_MCS_SUPPORT_0_8 << 14);
2231 sband->vht_cap.vht_mcs.tx_mcs_map =
2232 sband->vht_cap.vht_mcs.rx_mcs_map;
Luis R. Rodriguez22cad732009-03-05 21:13:06 -08002233 }
Daniel Wagner73606d02009-05-18 19:49:25 +02002234 /* By default all radios are belonging to the first group */
2235 data->group = 1;
Luis R. Rodriguezf74cb0f2010-04-08 11:50:47 -04002236 mutex_init(&data->mutex);
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03002237
Javier Lopez78825132011-06-01 11:26:13 +02002238 /* Enable frame retransmissions for lossy channels */
2239 hw->max_rates = 4;
2240 hw->max_rate_tries = 11;
2241
Luis R. Rodriguez4a5af9c2009-03-09 22:08:27 -04002242 /* Work to be done prior to ieee80211_register_hw() */
2243 switch (regtest) {
2244 case HWSIM_REGTEST_DISABLED:
2245 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
2246 case HWSIM_REGTEST_DRIVER_REG_ALL:
2247 case HWSIM_REGTEST_DIFF_COUNTRY:
2248 /*
2249 * Nothing to be done for driver regulatory domain
2250 * hints prior to ieee80211_register_hw()
2251 */
2252 break;
2253 case HWSIM_REGTEST_WORLD_ROAM:
2254 if (i == 0) {
Johannes Berg5be83de2009-11-19 00:56:28 +01002255 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
Luis R. Rodriguez4a5af9c2009-03-09 22:08:27 -04002256 wiphy_apply_custom_regulatory(hw->wiphy,
2257 &hwsim_world_regdom_custom_01);
2258 }
2259 break;
2260 case HWSIM_REGTEST_CUSTOM_WORLD:
Johannes Berg5be83de2009-11-19 00:56:28 +01002261 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
Luis R. Rodriguez4a5af9c2009-03-09 22:08:27 -04002262 wiphy_apply_custom_regulatory(hw->wiphy,
2263 &hwsim_world_regdom_custom_01);
2264 break;
2265 case HWSIM_REGTEST_CUSTOM_WORLD_2:
2266 if (i == 0) {
Johannes Berg5be83de2009-11-19 00:56:28 +01002267 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
Luis R. Rodriguez4a5af9c2009-03-09 22:08:27 -04002268 wiphy_apply_custom_regulatory(hw->wiphy,
2269 &hwsim_world_regdom_custom_01);
2270 } else if (i == 1) {
Johannes Berg5be83de2009-11-19 00:56:28 +01002271 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
Luis R. Rodriguez4a5af9c2009-03-09 22:08:27 -04002272 wiphy_apply_custom_regulatory(hw->wiphy,
2273 &hwsim_world_regdom_custom_02);
2274 }
2275 break;
2276 case HWSIM_REGTEST_STRICT_ALL:
Johannes Berg5be83de2009-11-19 00:56:28 +01002277 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
Luis R. Rodriguez4a5af9c2009-03-09 22:08:27 -04002278 break;
2279 case HWSIM_REGTEST_STRICT_FOLLOW:
2280 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
2281 if (i == 0)
Johannes Berg5be83de2009-11-19 00:56:28 +01002282 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
Luis R. Rodriguez4a5af9c2009-03-09 22:08:27 -04002283 break;
2284 case HWSIM_REGTEST_ALL:
2285 if (i == 0) {
Johannes Berg5be83de2009-11-19 00:56:28 +01002286 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
Luis R. Rodriguez4a5af9c2009-03-09 22:08:27 -04002287 wiphy_apply_custom_regulatory(hw->wiphy,
2288 &hwsim_world_regdom_custom_01);
2289 } else if (i == 1) {
Johannes Berg5be83de2009-11-19 00:56:28 +01002290 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
Luis R. Rodriguez4a5af9c2009-03-09 22:08:27 -04002291 wiphy_apply_custom_regulatory(hw->wiphy,
2292 &hwsim_world_regdom_custom_02);
2293 } else if (i == 4)
Johannes Berg5be83de2009-11-19 00:56:28 +01002294 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
Luis R. Rodriguez4a5af9c2009-03-09 22:08:27 -04002295 break;
2296 default:
2297 break;
2298 }
2299
Luis R. Rodriguez98dfaa52009-03-20 23:46:11 -04002300 /* give the regulatory workqueue a chance to run */
2301 if (regtest)
2302 schedule_timeout_interruptible(1);
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03002303 err = ieee80211_register_hw(hw);
2304 if (err < 0) {
2305 printk(KERN_DEBUG "mac80211_hwsim: "
2306 "ieee80211_register_hw failed (%d)\n", err);
Ian Schram3a33cc12008-07-21 13:19:35 -07002307 goto failed_hw;
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03002308 }
2309
Luis R. Rodriguez4a5af9c2009-03-09 22:08:27 -04002310 /* Work to be done after to ieee80211_register_hw() */
2311 switch (regtest) {
2312 case HWSIM_REGTEST_WORLD_ROAM:
2313 case HWSIM_REGTEST_DISABLED:
2314 break;
2315 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
2316 if (!i)
2317 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2318 break;
2319 case HWSIM_REGTEST_DRIVER_REG_ALL:
2320 case HWSIM_REGTEST_STRICT_ALL:
2321 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2322 break;
2323 case HWSIM_REGTEST_DIFF_COUNTRY:
2324 if (i < ARRAY_SIZE(hwsim_alpha2s))
2325 regulatory_hint(hw->wiphy, hwsim_alpha2s[i]);
2326 break;
2327 case HWSIM_REGTEST_CUSTOM_WORLD:
2328 case HWSIM_REGTEST_CUSTOM_WORLD_2:
2329 /*
2330 * Nothing to be done for custom world regulatory
2331 * domains after to ieee80211_register_hw
2332 */
2333 break;
2334 case HWSIM_REGTEST_STRICT_FOLLOW:
2335 if (i == 0)
2336 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2337 break;
2338 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
2339 if (i == 0)
2340 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2341 else if (i == 1)
2342 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
2343 break;
2344 case HWSIM_REGTEST_ALL:
2345 if (i == 2)
2346 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
2347 else if (i == 3)
2348 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
2349 else if (i == 4)
2350 regulatory_hint(hw->wiphy, hwsim_alpha2s[2]);
2351 break;
2352 default:
2353 break;
2354 }
2355
Joe Perchesc96c31e2010-07-26 14:39:58 -07002356 wiphy_debug(hw->wiphy, "hwaddr %pm registered\n",
2357 hw->wiphy->perm_addr);
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03002358
Jouni Malinenfc6971d2008-10-30 19:59:05 +02002359 data->debugfs = debugfs_create_dir("hwsim",
2360 hw->wiphy->debugfsdir);
2361 data->debugfs_ps = debugfs_create_file("ps", 0666,
2362 data->debugfs, data,
2363 &hwsim_fops_ps);
Daniel Wagner73606d02009-05-18 19:49:25 +02002364 data->debugfs_group = debugfs_create_file("group", 0666,
2365 data->debugfs, data,
2366 &hwsim_fops_group);
Jouni Malinenfc6971d2008-10-30 19:59:05 +02002367
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03002368 setup_timer(&data->beacon_timer, mac80211_hwsim_beacon,
2369 (unsigned long) hw);
Johannes Berg0e057d732008-09-12 00:39:22 +02002370
2371 list_add_tail(&data->list, &hwsim_radios);
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03002372 }
2373
2374 hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
2375 if (hwsim_mon == NULL)
2376 goto failed;
2377
Javier Lopez78825132011-06-01 11:26:13 +02002378 rtnl_lock();
2379
2380 err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
Ian Schram3a33cc12008-07-21 13:19:35 -07002381 if (err < 0)
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03002382 goto failed_mon;
Ian Schram3a33cc12008-07-21 13:19:35 -07002383
Javier Lopez78825132011-06-01 11:26:13 +02002384
2385 err = register_netdevice(hwsim_mon);
2386 if (err < 0)
2387 goto failed_mon;
2388
2389 rtnl_unlock();
2390
2391 err = hwsim_init_netlink();
2392 if (err < 0)
2393 goto failed_nl;
2394
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03002395 return 0;
2396
Javier Lopez78825132011-06-01 11:26:13 +02002397failed_nl:
2398 printk(KERN_DEBUG "mac_80211_hwsim: failed initializing netlink\n");
2399 return err;
2400
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03002401failed_mon:
2402 rtnl_unlock();
2403 free_netdev(hwsim_mon);
Ian Schram3a33cc12008-07-21 13:19:35 -07002404 mac80211_hwsim_free();
2405 return err;
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03002406
Ian Schram3a33cc12008-07-21 13:19:35 -07002407failed_hw:
2408 device_unregister(data->dev);
2409failed_drvdata:
2410 ieee80211_free_hw(hw);
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03002411failed:
2412 mac80211_hwsim_free();
2413 return err;
2414}
Johannes Bergf8fffc72012-07-27 15:16:02 +02002415module_init(init_mac80211_hwsim);
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03002416
2417static void __exit exit_mac80211_hwsim(void)
2418{
Johannes Berg0e057d732008-09-12 00:39:22 +02002419 printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03002420
Javier Lopez78825132011-06-01 11:26:13 +02002421 hwsim_exit_netlink();
2422
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03002423 mac80211_hwsim_free();
Johannes Berg5d416352009-07-13 13:04:30 +02002424 unregister_netdev(hwsim_mon);
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03002425}
Jouni Malinenacc1e7a2008-06-11 10:42:31 +03002426module_exit(exit_mac80211_hwsim);