Commit | Line | Data |
---|---|---|
acc1e7a3 JM |
1 | /* |
2 | * mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211 | |
3 | * Copyright (c) 2008, Jouni Malinen <j@w1.fi> | |
7882513b | 4 | * Copyright (c) 2011, Javier Lopez <jlopex@gmail.com> |
acc1e7a3 JM |
5 | * |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License version 2 as | |
8 | * published by the Free Software Foundation. | |
9 | */ | |
10 | ||
11 | /* | |
12 | * TODO: | |
2b2d7795 JB |
13 | * - Add TSF sync and fix IBSS beacon transmission by adding |
14 | * competition for "air time" at TBTT | |
acc1e7a3 JM |
15 | * - RX filtering based on filter configuration (data->rx_filter) |
16 | */ | |
17 | ||
0e057d73 | 18 | #include <linux/list.h> |
5a0e3ad6 | 19 | #include <linux/slab.h> |
0e057d73 | 20 | #include <linux/spinlock.h> |
90e3012e JB |
21 | #include <net/dst.h> |
22 | #include <net/xfrm.h> | |
acc1e7a3 JM |
23 | #include <net/mac80211.h> |
24 | #include <net/ieee80211_radiotap.h> | |
25 | #include <linux/if_arp.h> | |
26 | #include <linux/rtnetlink.h> | |
27 | #include <linux/etherdevice.h> | |
9ea92774 | 28 | #include <linux/platform_device.h> |
fc6971d4 | 29 | #include <linux/debugfs.h> |
9d9779e7 | 30 | #include <linux/module.h> |
2f40b940 | 31 | #include <linux/ktime.h> |
7882513b JL |
32 | #include <net/genetlink.h> |
33 | #include "mac80211_hwsim.h" | |
34 | ||
35 | #define WARN_QUEUE 100 | |
36 | #define MAX_QUEUE 200 | |
acc1e7a3 JM |
37 | |
38 | MODULE_AUTHOR("Jouni Malinen"); | |
39 | MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211"); | |
40 | MODULE_LICENSE("GPL"); | |
41 | ||
15e47304 | 42 | static u32 wmediumd_portid; |
a1910f9c | 43 | |
acc1e7a3 JM |
44 | static int radios = 2; |
45 | module_param(radios, int, 0444); | |
46 | MODULE_PARM_DESC(radios, "Number of simulated radios"); | |
47 | ||
e8261171 JB |
48 | static int channels = 1; |
49 | module_param(channels, int, 0444); | |
50 | MODULE_PARM_DESC(channels, "Number of concurrent channels"); | |
69068036 | 51 | |
a357d7f9 JB |
52 | static bool paged_rx = false; |
53 | module_param(paged_rx, bool, 0644); | |
54 | MODULE_PARM_DESC(paged_rx, "Use paged SKBs for RX instead of linear ones"); | |
55 | ||
1eb32179 KB |
56 | static bool rctbl = false; |
57 | module_param(rctbl, bool, 0444); | |
58 | MODULE_PARM_DESC(rctbl, "Handle rate control table"); | |
59 | ||
8aa21e6f JB |
60 | struct hwsim_vif_priv { |
61 | u32 magic; | |
fc6971d4 JM |
62 | u8 bssid[ETH_ALEN]; |
63 | bool assoc; | |
0bb861e6 | 64 | bool bcn_en; |
fc6971d4 | 65 | u16 aid; |
8aa21e6f JB |
66 | }; |
67 | ||
68 | #define HWSIM_VIF_MAGIC 0x69537748 | |
69 | ||
70 | static inline void hwsim_check_magic(struct ieee80211_vif *vif) | |
71 | { | |
72 | struct hwsim_vif_priv *vp = (void *)vif->drv_priv; | |
e8261171 JB |
73 | WARN(vp->magic != HWSIM_VIF_MAGIC, |
74 | "Invalid VIF (%p) magic %#x, %pM, %d/%d\n", | |
75 | vif, vp->magic, vif->addr, vif->type, vif->p2p); | |
8aa21e6f JB |
76 | } |
77 | ||
78 | static inline void hwsim_set_magic(struct ieee80211_vif *vif) | |
79 | { | |
80 | struct hwsim_vif_priv *vp = (void *)vif->drv_priv; | |
81 | vp->magic = HWSIM_VIF_MAGIC; | |
82 | } | |
83 | ||
84 | static inline void hwsim_clear_magic(struct ieee80211_vif *vif) | |
85 | { | |
86 | struct hwsim_vif_priv *vp = (void *)vif->drv_priv; | |
87 | vp->magic = 0; | |
88 | } | |
acc1e7a3 | 89 | |
81c06523 JB |
90 | struct hwsim_sta_priv { |
91 | u32 magic; | |
92 | }; | |
93 | ||
e8261171 | 94 | #define HWSIM_STA_MAGIC 0x6d537749 |
81c06523 JB |
95 | |
96 | static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta) | |
97 | { | |
98 | struct hwsim_sta_priv *sp = (void *)sta->drv_priv; | |
5d6924ea | 99 | WARN_ON(sp->magic != HWSIM_STA_MAGIC); |
81c06523 JB |
100 | } |
101 | ||
102 | static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta) | |
103 | { | |
104 | struct hwsim_sta_priv *sp = (void *)sta->drv_priv; | |
5d6924ea | 105 | sp->magic = HWSIM_STA_MAGIC; |
81c06523 JB |
106 | } |
107 | ||
108 | static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta) | |
109 | { | |
110 | struct hwsim_sta_priv *sp = (void *)sta->drv_priv; | |
111 | sp->magic = 0; | |
112 | } | |
113 | ||
e8261171 JB |
114 | struct hwsim_chanctx_priv { |
115 | u32 magic; | |
116 | }; | |
117 | ||
118 | #define HWSIM_CHANCTX_MAGIC 0x6d53774a | |
119 | ||
120 | static inline void hwsim_check_chanctx_magic(struct ieee80211_chanctx_conf *c) | |
121 | { | |
122 | struct hwsim_chanctx_priv *cp = (void *)c->drv_priv; | |
123 | WARN_ON(cp->magic != HWSIM_CHANCTX_MAGIC); | |
124 | } | |
125 | ||
126 | static inline void hwsim_set_chanctx_magic(struct ieee80211_chanctx_conf *c) | |
127 | { | |
128 | struct hwsim_chanctx_priv *cp = (void *)c->drv_priv; | |
129 | cp->magic = HWSIM_CHANCTX_MAGIC; | |
130 | } | |
131 | ||
132 | static inline void hwsim_clear_chanctx_magic(struct ieee80211_chanctx_conf *c) | |
133 | { | |
134 | struct hwsim_chanctx_priv *cp = (void *)c->drv_priv; | |
135 | cp->magic = 0; | |
136 | } | |
137 | ||
acc1e7a3 JM |
138 | static struct class *hwsim_class; |
139 | ||
acc1e7a3 JM |
140 | static struct net_device *hwsim_mon; /* global monitor netdev */ |
141 | ||
22cad735 LR |
142 | #define CHAN2G(_freq) { \ |
143 | .band = IEEE80211_BAND_2GHZ, \ | |
144 | .center_freq = (_freq), \ | |
145 | .hw_value = (_freq), \ | |
146 | .max_power = 20, \ | |
147 | } | |
148 | ||
149 | #define CHAN5G(_freq) { \ | |
150 | .band = IEEE80211_BAND_5GHZ, \ | |
151 | .center_freq = (_freq), \ | |
152 | .hw_value = (_freq), \ | |
153 | .max_power = 20, \ | |
154 | } | |
155 | ||
156 | static const struct ieee80211_channel hwsim_channels_2ghz[] = { | |
157 | CHAN2G(2412), /* Channel 1 */ | |
158 | CHAN2G(2417), /* Channel 2 */ | |
159 | CHAN2G(2422), /* Channel 3 */ | |
160 | CHAN2G(2427), /* Channel 4 */ | |
161 | CHAN2G(2432), /* Channel 5 */ | |
162 | CHAN2G(2437), /* Channel 6 */ | |
163 | CHAN2G(2442), /* Channel 7 */ | |
164 | CHAN2G(2447), /* Channel 8 */ | |
165 | CHAN2G(2452), /* Channel 9 */ | |
166 | CHAN2G(2457), /* Channel 10 */ | |
167 | CHAN2G(2462), /* Channel 11 */ | |
168 | CHAN2G(2467), /* Channel 12 */ | |
169 | CHAN2G(2472), /* Channel 13 */ | |
170 | CHAN2G(2484), /* Channel 14 */ | |
171 | }; | |
acc1e7a3 | 172 | |
22cad735 LR |
173 | static const struct ieee80211_channel hwsim_channels_5ghz[] = { |
174 | CHAN5G(5180), /* Channel 36 */ | |
175 | CHAN5G(5200), /* Channel 40 */ | |
176 | CHAN5G(5220), /* Channel 44 */ | |
177 | CHAN5G(5240), /* Channel 48 */ | |
178 | ||
179 | CHAN5G(5260), /* Channel 52 */ | |
180 | CHAN5G(5280), /* Channel 56 */ | |
181 | CHAN5G(5300), /* Channel 60 */ | |
182 | CHAN5G(5320), /* Channel 64 */ | |
183 | ||
184 | CHAN5G(5500), /* Channel 100 */ | |
185 | CHAN5G(5520), /* Channel 104 */ | |
186 | CHAN5G(5540), /* Channel 108 */ | |
187 | CHAN5G(5560), /* Channel 112 */ | |
188 | CHAN5G(5580), /* Channel 116 */ | |
189 | CHAN5G(5600), /* Channel 120 */ | |
190 | CHAN5G(5620), /* Channel 124 */ | |
191 | CHAN5G(5640), /* Channel 128 */ | |
192 | CHAN5G(5660), /* Channel 132 */ | |
193 | CHAN5G(5680), /* Channel 136 */ | |
194 | CHAN5G(5700), /* Channel 140 */ | |
195 | ||
196 | CHAN5G(5745), /* Channel 149 */ | |
197 | CHAN5G(5765), /* Channel 153 */ | |
198 | CHAN5G(5785), /* Channel 157 */ | |
199 | CHAN5G(5805), /* Channel 161 */ | |
200 | CHAN5G(5825), /* Channel 165 */ | |
acc1e7a3 JM |
201 | }; |
202 | ||
203 | static const struct ieee80211_rate hwsim_rates[] = { | |
204 | { .bitrate = 10 }, | |
205 | { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
206 | { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
207 | { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
208 | { .bitrate = 60 }, | |
209 | { .bitrate = 90 }, | |
210 | { .bitrate = 120 }, | |
211 | { .bitrate = 180 }, | |
212 | { .bitrate = 240 }, | |
213 | { .bitrate = 360 }, | |
214 | { .bitrate = 480 }, | |
215 | { .bitrate = 540 } | |
216 | }; | |
217 | ||
de0421d5 JB |
218 | static const struct ieee80211_iface_limit hwsim_if_limits[] = { |
219 | { .max = 1, .types = BIT(NL80211_IFTYPE_ADHOC) }, | |
220 | { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) | | |
221 | BIT(NL80211_IFTYPE_P2P_CLIENT) | | |
222 | #ifdef CONFIG_MAC80211_MESH | |
223 | BIT(NL80211_IFTYPE_MESH_POINT) | | |
224 | #endif | |
225 | BIT(NL80211_IFTYPE_AP) | | |
226 | BIT(NL80211_IFTYPE_P2P_GO) }, | |
227 | { .max = 1, .types = BIT(NL80211_IFTYPE_P2P_DEVICE) }, | |
228 | }; | |
229 | ||
230 | static const struct ieee80211_iface_limit hwsim_if_dfs_limits[] = { | |
231 | { .max = 8, .types = BIT(NL80211_IFTYPE_AP) }, | |
232 | }; | |
233 | ||
234 | static const struct ieee80211_iface_combination hwsim_if_comb[] = { | |
235 | { | |
236 | .limits = hwsim_if_limits, | |
237 | .n_limits = ARRAY_SIZE(hwsim_if_limits), | |
238 | .max_interfaces = 2048, | |
239 | .num_different_channels = 1, | |
240 | }, | |
241 | { | |
242 | .limits = hwsim_if_dfs_limits, | |
243 | .n_limits = ARRAY_SIZE(hwsim_if_dfs_limits), | |
244 | .max_interfaces = 8, | |
245 | .num_different_channels = 1, | |
246 | .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | | |
247 | BIT(NL80211_CHAN_WIDTH_20) | | |
248 | BIT(NL80211_CHAN_WIDTH_40) | | |
249 | BIT(NL80211_CHAN_WIDTH_80) | | |
250 | BIT(NL80211_CHAN_WIDTH_160), | |
251 | } | |
252 | }; | |
253 | ||
0e057d73 JB |
254 | static spinlock_t hwsim_radio_lock; |
255 | static struct list_head hwsim_radios; | |
2d68992b | 256 | static int hwsim_radio_idx; |
0e057d73 | 257 | |
de0421d5 JB |
258 | static struct platform_driver mac80211_hwsim_driver = { |
259 | .driver = { | |
260 | .name = "mac80211_hwsim", | |
261 | .owner = THIS_MODULE, | |
262 | }, | |
263 | }; | |
264 | ||
acc1e7a3 | 265 | struct mac80211_hwsim_data { |
0e057d73 JB |
266 | struct list_head list; |
267 | struct ieee80211_hw *hw; | |
acc1e7a3 | 268 | struct device *dev; |
1b083ea4 | 269 | struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS]; |
22cad735 LR |
270 | struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)]; |
271 | struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)]; | |
acc1e7a3 | 272 | struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)]; |
38ed5048 | 273 | struct ieee80211_iface_combination if_combination; |
acc1e7a3 | 274 | |
ef15aac6 | 275 | struct mac_address addresses[2]; |
38ed5048 | 276 | int channels; |
ef15aac6 | 277 | |
e8261171 JB |
278 | struct ieee80211_channel *tmp_chan; |
279 | struct delayed_work roc_done; | |
280 | struct delayed_work hw_scan; | |
281 | struct cfg80211_scan_request *hw_scan_request; | |
282 | struct ieee80211_vif *hw_scan_vif; | |
283 | int scan_chan_idx; | |
284 | ||
acc1e7a3 | 285 | struct ieee80211_channel *channel; |
01e59e46 | 286 | u64 beacon_int /* beacon interval in us */; |
acc1e7a3 | 287 | unsigned int rx_filter; |
f74cb0f7 LR |
288 | bool started, idle, scanning; |
289 | struct mutex mutex; | |
01e59e46 | 290 | struct tasklet_hrtimer beacon_timer; |
fc6971d4 JM |
291 | enum ps_mode { |
292 | PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL | |
293 | } ps; | |
294 | bool ps_poll_pending; | |
295 | struct dentry *debugfs; | |
73606d00 | 296 | |
7882513b | 297 | struct sk_buff_head pending; /* packets pending */ |
73606d00 DW |
298 | /* |
299 | * Only radios in the same group can communicate together (the | |
300 | * channel has to match too). Each bit represents a group. A | |
301 | * radio can be in more then one group. | |
302 | */ | |
303 | u64 group; | |
bdd7bd16 BG |
304 | |
305 | int power_level; | |
2f40b940 JC |
306 | |
307 | /* difference between this hw's clock and the real clock, in usecs */ | |
45034bfb | 308 | s64 tsf_offset; |
c51f8783 | 309 | s64 bcn_delta; |
b66851c3 TP |
310 | /* absolute beacon transmission time. Used to cover up "tx" delay. */ |
311 | u64 abs_bcn_ts; | |
acc1e7a3 JM |
312 | }; |
313 | ||
314 | ||
315 | struct hwsim_radiotap_hdr { | |
316 | struct ieee80211_radiotap_header hdr; | |
2f40b940 | 317 | __le64 rt_tsft; |
acc1e7a3 JM |
318 | u8 rt_flags; |
319 | u8 rt_rate; | |
320 | __le16 rt_channel; | |
321 | __le16 rt_chbitmask; | |
ba2d3587 | 322 | } __packed; |
acc1e7a3 | 323 | |
76a56eb3 JM |
324 | struct hwsim_radiotap_ack_hdr { |
325 | struct ieee80211_radiotap_header hdr; | |
326 | u8 rt_flags; | |
327 | u8 pad; | |
328 | __le16 rt_channel; | |
329 | __le16 rt_chbitmask; | |
330 | } __packed; | |
331 | ||
7882513b JL |
332 | /* MAC80211_HWSIM netlinf family */ |
333 | static struct genl_family hwsim_genl_family = { | |
334 | .id = GENL_ID_GENERATE, | |
335 | .hdrsize = 0, | |
336 | .name = "MAC80211_HWSIM", | |
337 | .version = 1, | |
338 | .maxattr = HWSIM_ATTR_MAX, | |
339 | }; | |
340 | ||
341 | /* MAC80211_HWSIM netlink policy */ | |
342 | ||
343 | static struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = { | |
9ddd12af JB |
344 | [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC, .len = ETH_ALEN }, |
345 | [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC, .len = ETH_ALEN }, | |
7882513b JL |
346 | [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY, |
347 | .len = IEEE80211_MAX_DATA_LEN }, | |
348 | [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 }, | |
349 | [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 }, | |
350 | [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 }, | |
351 | [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC, | |
9ddd12af JB |
352 | .len = IEEE80211_TX_MAX_RATES * |
353 | sizeof(struct hwsim_tx_rate)}, | |
7882513b JL |
354 | [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 }, |
355 | }; | |
acc1e7a3 | 356 | |
de0421d5 JB |
357 | static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw, |
358 | struct sk_buff *skb, | |
359 | struct ieee80211_channel *chan); | |
360 | ||
361 | /* sysfs attributes */ | |
362 | static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif) | |
363 | { | |
364 | struct mac80211_hwsim_data *data = dat; | |
365 | struct hwsim_vif_priv *vp = (void *)vif->drv_priv; | |
366 | struct sk_buff *skb; | |
367 | struct ieee80211_pspoll *pspoll; | |
368 | ||
369 | if (!vp->assoc) | |
370 | return; | |
371 | ||
372 | wiphy_debug(data->hw->wiphy, | |
373 | "%s: send PS-Poll to %pM for aid %d\n", | |
374 | __func__, vp->bssid, vp->aid); | |
375 | ||
376 | skb = dev_alloc_skb(sizeof(*pspoll)); | |
377 | if (!skb) | |
378 | return; | |
379 | pspoll = (void *) skb_put(skb, sizeof(*pspoll)); | |
380 | pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL | | |
381 | IEEE80211_STYPE_PSPOLL | | |
382 | IEEE80211_FCTL_PM); | |
383 | pspoll->aid = cpu_to_le16(0xc000 | vp->aid); | |
384 | memcpy(pspoll->bssid, vp->bssid, ETH_ALEN); | |
385 | memcpy(pspoll->ta, mac, ETH_ALEN); | |
386 | ||
387 | rcu_read_lock(); | |
388 | mac80211_hwsim_tx_frame(data->hw, skb, | |
389 | rcu_dereference(vif->chanctx_conf)->def.chan); | |
390 | rcu_read_unlock(); | |
391 | } | |
392 | ||
393 | static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac, | |
394 | struct ieee80211_vif *vif, int ps) | |
395 | { | |
396 | struct hwsim_vif_priv *vp = (void *)vif->drv_priv; | |
397 | struct sk_buff *skb; | |
398 | struct ieee80211_hdr *hdr; | |
399 | ||
400 | if (!vp->assoc) | |
401 | return; | |
402 | ||
403 | wiphy_debug(data->hw->wiphy, | |
404 | "%s: send data::nullfunc to %pM ps=%d\n", | |
405 | __func__, vp->bssid, ps); | |
406 | ||
407 | skb = dev_alloc_skb(sizeof(*hdr)); | |
408 | if (!skb) | |
409 | return; | |
410 | hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN); | |
411 | hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA | | |
412 | IEEE80211_STYPE_NULLFUNC | | |
413 | (ps ? IEEE80211_FCTL_PM : 0)); | |
414 | hdr->duration_id = cpu_to_le16(0); | |
415 | memcpy(hdr->addr1, vp->bssid, ETH_ALEN); | |
416 | memcpy(hdr->addr2, mac, ETH_ALEN); | |
417 | memcpy(hdr->addr3, vp->bssid, ETH_ALEN); | |
418 | ||
419 | rcu_read_lock(); | |
420 | mac80211_hwsim_tx_frame(data->hw, skb, | |
421 | rcu_dereference(vif->chanctx_conf)->def.chan); | |
422 | rcu_read_unlock(); | |
423 | } | |
424 | ||
425 | ||
426 | static void hwsim_send_nullfunc_ps(void *dat, u8 *mac, | |
427 | struct ieee80211_vif *vif) | |
428 | { | |
429 | struct mac80211_hwsim_data *data = dat; | |
430 | hwsim_send_nullfunc(data, mac, vif, 1); | |
431 | } | |
432 | ||
433 | static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac, | |
434 | struct ieee80211_vif *vif) | |
435 | { | |
436 | struct mac80211_hwsim_data *data = dat; | |
437 | hwsim_send_nullfunc(data, mac, vif, 0); | |
438 | } | |
439 | ||
440 | static int hwsim_fops_ps_read(void *dat, u64 *val) | |
441 | { | |
442 | struct mac80211_hwsim_data *data = dat; | |
443 | *val = data->ps; | |
444 | return 0; | |
445 | } | |
446 | ||
447 | static int hwsim_fops_ps_write(void *dat, u64 val) | |
448 | { | |
449 | struct mac80211_hwsim_data *data = dat; | |
450 | enum ps_mode old_ps; | |
451 | ||
452 | if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL && | |
453 | val != PS_MANUAL_POLL) | |
454 | return -EINVAL; | |
455 | ||
456 | old_ps = data->ps; | |
457 | data->ps = val; | |
458 | ||
459 | if (val == PS_MANUAL_POLL) { | |
460 | ieee80211_iterate_active_interfaces(data->hw, | |
461 | IEEE80211_IFACE_ITER_NORMAL, | |
462 | hwsim_send_ps_poll, data); | |
463 | data->ps_poll_pending = true; | |
464 | } else if (old_ps == PS_DISABLED && val != PS_DISABLED) { | |
465 | ieee80211_iterate_active_interfaces(data->hw, | |
466 | IEEE80211_IFACE_ITER_NORMAL, | |
467 | hwsim_send_nullfunc_ps, | |
468 | data); | |
469 | } else if (old_ps != PS_DISABLED && val == PS_DISABLED) { | |
470 | ieee80211_iterate_active_interfaces(data->hw, | |
471 | IEEE80211_IFACE_ITER_NORMAL, | |
472 | hwsim_send_nullfunc_no_ps, | |
473 | data); | |
474 | } | |
475 | ||
476 | return 0; | |
477 | } | |
478 | ||
479 | DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write, | |
480 | "%llu\n"); | |
481 | ||
482 | static int hwsim_write_simulate_radar(void *dat, u64 val) | |
483 | { | |
484 | struct mac80211_hwsim_data *data = dat; | |
485 | ||
486 | ieee80211_radar_detected(data->hw); | |
487 | ||
488 | return 0; | |
489 | } | |
490 | ||
491 | DEFINE_SIMPLE_ATTRIBUTE(hwsim_simulate_radar, NULL, | |
492 | hwsim_write_simulate_radar, "%llu\n"); | |
493 | ||
494 | static int hwsim_fops_group_read(void *dat, u64 *val) | |
495 | { | |
496 | struct mac80211_hwsim_data *data = dat; | |
497 | *val = data->group; | |
498 | return 0; | |
499 | } | |
500 | ||
501 | static int hwsim_fops_group_write(void *dat, u64 val) | |
502 | { | |
503 | struct mac80211_hwsim_data *data = dat; | |
504 | data->group = val; | |
505 | return 0; | |
506 | } | |
507 | ||
508 | DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group, | |
509 | hwsim_fops_group_read, hwsim_fops_group_write, | |
510 | "%llx\n"); | |
511 | ||
d0cf9c0d SH |
512 | static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb, |
513 | struct net_device *dev) | |
acc1e7a3 JM |
514 | { |
515 | /* TODO: allow packet injection */ | |
516 | dev_kfree_skb(skb); | |
6ed10654 | 517 | return NETDEV_TX_OK; |
acc1e7a3 JM |
518 | } |
519 | ||
b66851c3 TP |
520 | static inline u64 mac80211_hwsim_get_tsf_raw(void) |
521 | { | |
522 | return ktime_to_us(ktime_get_real()); | |
523 | } | |
524 | ||
2f40b940 JC |
525 | static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data) |
526 | { | |
b66851c3 | 527 | u64 now = mac80211_hwsim_get_tsf_raw(); |
2f40b940 JC |
528 | return cpu_to_le64(now + data->tsf_offset); |
529 | } | |
acc1e7a3 | 530 | |
12ce8ba3 | 531 | static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw, |
b66851c3 | 532 | struct ieee80211_vif *vif) |
12ce8ba3 JC |
533 | { |
534 | struct mac80211_hwsim_data *data = hw->priv; | |
535 | return le64_to_cpu(__mac80211_hwsim_get_tsf(data)); | |
536 | } | |
537 | ||
538 | static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw, | |
539 | struct ieee80211_vif *vif, u64 tsf) | |
540 | { | |
541 | struct mac80211_hwsim_data *data = hw->priv; | |
45034bfb | 542 | u64 now = mac80211_hwsim_get_tsf(hw, vif); |
c51f8783 | 543 | u32 bcn_int = data->beacon_int; |
45034bfb TP |
544 | s64 delta = tsf - now; |
545 | ||
546 | data->tsf_offset += delta; | |
c51f8783 TP |
547 | /* adjust after beaconing with new timestamp at old TBTT */ |
548 | data->bcn_delta = do_div(delta, bcn_int); | |
12ce8ba3 JC |
549 | } |
550 | ||
acc1e7a3 | 551 | static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw, |
e8261171 JB |
552 | struct sk_buff *tx_skb, |
553 | struct ieee80211_channel *chan) | |
acc1e7a3 JM |
554 | { |
555 | struct mac80211_hwsim_data *data = hw->priv; | |
556 | struct sk_buff *skb; | |
557 | struct hwsim_radiotap_hdr *hdr; | |
558 | u16 flags; | |
559 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb); | |
560 | struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info); | |
561 | ||
562 | if (!netif_running(hwsim_mon)) | |
563 | return; | |
564 | ||
565 | skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC); | |
566 | if (skb == NULL) | |
567 | return; | |
568 | ||
569 | hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr)); | |
570 | hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION; | |
571 | hdr->hdr.it_pad = 0; | |
572 | hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr)); | |
f248f105 JM |
573 | hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) | |
574 | (1 << IEEE80211_RADIOTAP_RATE) | | |
2f40b940 | 575 | (1 << IEEE80211_RADIOTAP_TSFT) | |
f248f105 | 576 | (1 << IEEE80211_RADIOTAP_CHANNEL)); |
2f40b940 | 577 | hdr->rt_tsft = __mac80211_hwsim_get_tsf(data); |
acc1e7a3 JM |
578 | hdr->rt_flags = 0; |
579 | hdr->rt_rate = txrate->bitrate / 5; | |
e8261171 | 580 | hdr->rt_channel = cpu_to_le16(chan->center_freq); |
acc1e7a3 JM |
581 | flags = IEEE80211_CHAN_2GHZ; |
582 | if (txrate->flags & IEEE80211_RATE_ERP_G) | |
583 | flags |= IEEE80211_CHAN_OFDM; | |
584 | else | |
585 | flags |= IEEE80211_CHAN_CCK; | |
586 | hdr->rt_chbitmask = cpu_to_le16(flags); | |
587 | ||
588 | skb->dev = hwsim_mon; | |
589 | skb_set_mac_header(skb, 0); | |
590 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
591 | skb->pkt_type = PACKET_OTHERHOST; | |
f248f105 | 592 | skb->protocol = htons(ETH_P_802_2); |
acc1e7a3 JM |
593 | memset(skb->cb, 0, sizeof(skb->cb)); |
594 | netif_rx(skb); | |
595 | } | |
596 | ||
597 | ||
e8261171 JB |
598 | static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan, |
599 | const u8 *addr) | |
6c085227 | 600 | { |
6c085227 | 601 | struct sk_buff *skb; |
76a56eb3 | 602 | struct hwsim_radiotap_ack_hdr *hdr; |
6c085227 JM |
603 | u16 flags; |
604 | struct ieee80211_hdr *hdr11; | |
605 | ||
606 | if (!netif_running(hwsim_mon)) | |
607 | return; | |
608 | ||
609 | skb = dev_alloc_skb(100); | |
610 | if (skb == NULL) | |
611 | return; | |
612 | ||
76a56eb3 | 613 | hdr = (struct hwsim_radiotap_ack_hdr *) skb_put(skb, sizeof(*hdr)); |
6c085227 JM |
614 | hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION; |
615 | hdr->hdr.it_pad = 0; | |
616 | hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr)); | |
617 | hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) | | |
618 | (1 << IEEE80211_RADIOTAP_CHANNEL)); | |
619 | hdr->rt_flags = 0; | |
76a56eb3 | 620 | hdr->pad = 0; |
e8261171 | 621 | hdr->rt_channel = cpu_to_le16(chan->center_freq); |
6c085227 JM |
622 | flags = IEEE80211_CHAN_2GHZ; |
623 | hdr->rt_chbitmask = cpu_to_le16(flags); | |
624 | ||
625 | hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10); | |
626 | hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL | | |
627 | IEEE80211_STYPE_ACK); | |
628 | hdr11->duration_id = cpu_to_le16(0); | |
629 | memcpy(hdr11->addr1, addr, ETH_ALEN); | |
630 | ||
631 | skb->dev = hwsim_mon; | |
632 | skb_set_mac_header(skb, 0); | |
633 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
634 | skb->pkt_type = PACKET_OTHERHOST; | |
635 | skb->protocol = htons(ETH_P_802_2); | |
636 | memset(skb->cb, 0, sizeof(skb->cb)); | |
637 | netif_rx(skb); | |
638 | } | |
639 | ||
640 | ||
fc6971d4 JM |
641 | static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data, |
642 | struct sk_buff *skb) | |
643 | { | |
644 | switch (data->ps) { | |
645 | case PS_DISABLED: | |
646 | return true; | |
647 | case PS_ENABLED: | |
648 | return false; | |
649 | case PS_AUTO_POLL: | |
650 | /* TODO: accept (some) Beacons by default and other frames only | |
651 | * if pending PS-Poll has been sent */ | |
652 | return true; | |
653 | case PS_MANUAL_POLL: | |
654 | /* Allow unicast frames to own address if there is a pending | |
655 | * PS-Poll */ | |
656 | if (data->ps_poll_pending && | |
657 | memcmp(data->hw->wiphy->perm_addr, skb->data + 4, | |
658 | ETH_ALEN) == 0) { | |
659 | data->ps_poll_pending = false; | |
660 | return true; | |
661 | } | |
662 | return false; | |
663 | } | |
664 | ||
665 | return true; | |
666 | } | |
667 | ||
668 | ||
265dc7f0 JM |
669 | struct mac80211_hwsim_addr_match_data { |
670 | bool ret; | |
671 | const u8 *addr; | |
672 | }; | |
673 | ||
674 | static void mac80211_hwsim_addr_iter(void *data, u8 *mac, | |
675 | struct ieee80211_vif *vif) | |
676 | { | |
677 | struct mac80211_hwsim_addr_match_data *md = data; | |
678 | if (memcmp(mac, md->addr, ETH_ALEN) == 0) | |
679 | md->ret = true; | |
680 | } | |
681 | ||
682 | ||
683 | static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data, | |
684 | const u8 *addr) | |
685 | { | |
686 | struct mac80211_hwsim_addr_match_data md; | |
687 | ||
688 | if (memcmp(addr, data->hw->wiphy->perm_addr, ETH_ALEN) == 0) | |
689 | return true; | |
690 | ||
691 | md.ret = false; | |
692 | md.addr = addr; | |
693 | ieee80211_iterate_active_interfaces_atomic(data->hw, | |
8b2c9824 | 694 | IEEE80211_IFACE_ITER_NORMAL, |
265dc7f0 JM |
695 | mac80211_hwsim_addr_iter, |
696 | &md); | |
697 | ||
698 | return md.ret; | |
699 | } | |
700 | ||
7882513b JL |
701 | static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw, |
702 | struct sk_buff *my_skb, | |
15e47304 | 703 | int dst_portid) |
7882513b JL |
704 | { |
705 | struct sk_buff *skb; | |
706 | struct mac80211_hwsim_data *data = hw->priv; | |
707 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data; | |
708 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb); | |
709 | void *msg_head; | |
710 | unsigned int hwsim_flags = 0; | |
711 | int i; | |
712 | struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES]; | |
713 | ||
7882513b JL |
714 | if (data->ps != PS_DISABLED) |
715 | hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM); | |
716 | /* If the queue contains MAX_QUEUE skb's drop some */ | |
717 | if (skb_queue_len(&data->pending) >= MAX_QUEUE) { | |
718 | /* Droping until WARN_QUEUE level */ | |
719 | while (skb_queue_len(&data->pending) >= WARN_QUEUE) | |
720 | skb_dequeue(&data->pending); | |
721 | } | |
722 | ||
58050fce | 723 | skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC); |
7882513b JL |
724 | if (skb == NULL) |
725 | goto nla_put_failure; | |
726 | ||
727 | msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0, | |
728 | HWSIM_CMD_FRAME); | |
729 | if (msg_head == NULL) { | |
730 | printk(KERN_DEBUG "mac80211_hwsim: problem with msg_head\n"); | |
731 | goto nla_put_failure; | |
732 | } | |
733 | ||
633c9389 | 734 | if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER, |
9ddd12af | 735 | ETH_ALEN, data->addresses[1].addr)) |
633c9389 | 736 | goto nla_put_failure; |
265dc7f0 | 737 | |
7882513b | 738 | /* We get the skb->data */ |
633c9389 DM |
739 | if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data)) |
740 | goto nla_put_failure; | |
7882513b JL |
741 | |
742 | /* We get the flags for this transmission, and we translate them to | |
743 | wmediumd flags */ | |
744 | ||
745 | if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS) | |
746 | hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS; | |
747 | ||
748 | if (info->flags & IEEE80211_TX_CTL_NO_ACK) | |
749 | hwsim_flags |= HWSIM_TX_CTL_NO_ACK; | |
750 | ||
633c9389 DM |
751 | if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags)) |
752 | goto nla_put_failure; | |
7882513b JL |
753 | |
754 | /* We get the tx control (rate and retries) info*/ | |
755 | ||
756 | for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) { | |
757 | tx_attempts[i].idx = info->status.rates[i].idx; | |
758 | tx_attempts[i].count = info->status.rates[i].count; | |
759 | } | |
760 | ||
633c9389 DM |
761 | if (nla_put(skb, HWSIM_ATTR_TX_INFO, |
762 | sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES, | |
763 | tx_attempts)) | |
764 | goto nla_put_failure; | |
7882513b JL |
765 | |
766 | /* We create a cookie to identify this skb */ | |
633c9389 DM |
767 | if (nla_put_u64(skb, HWSIM_ATTR_COOKIE, (unsigned long) my_skb)) |
768 | goto nla_put_failure; | |
7882513b JL |
769 | |
770 | genlmsg_end(skb, msg_head); | |
15e47304 | 771 | genlmsg_unicast(&init_net, skb, dst_portid); |
7882513b JL |
772 | |
773 | /* Enqueue the packet */ | |
774 | skb_queue_tail(&data->pending, my_skb); | |
775 | return; | |
776 | ||
777 | nla_put_failure: | |
c393862f | 778 | printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__); |
7882513b JL |
779 | } |
780 | ||
e8261171 JB |
781 | static bool hwsim_chans_compat(struct ieee80211_channel *c1, |
782 | struct ieee80211_channel *c2) | |
783 | { | |
784 | if (!c1 || !c2) | |
785 | return false; | |
786 | ||
787 | return c1->center_freq == c2->center_freq; | |
788 | } | |
789 | ||
790 | struct tx_iter_data { | |
791 | struct ieee80211_channel *channel; | |
792 | bool receive; | |
793 | }; | |
794 | ||
795 | static void mac80211_hwsim_tx_iter(void *_data, u8 *addr, | |
796 | struct ieee80211_vif *vif) | |
797 | { | |
798 | struct tx_iter_data *data = _data; | |
799 | ||
800 | if (!vif->chanctx_conf) | |
801 | return; | |
802 | ||
803 | if (!hwsim_chans_compat(data->channel, | |
4bf88530 | 804 | rcu_dereference(vif->chanctx_conf)->def.chan)) |
e8261171 JB |
805 | return; |
806 | ||
807 | data->receive = true; | |
808 | } | |
809 | ||
7882513b | 810 | static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw, |
e8261171 JB |
811 | struct sk_buff *skb, |
812 | struct ieee80211_channel *chan) | |
acc1e7a3 | 813 | { |
0e057d73 JB |
814 | struct mac80211_hwsim_data *data = hw->priv, *data2; |
815 | bool ack = false; | |
e36cfdc9 | 816 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; |
acc1e7a3 | 817 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
e36cfdc9 | 818 | struct ieee80211_rx_status rx_status; |
b66851c3 | 819 | u64 now; |
acc1e7a3 JM |
820 | |
821 | memset(&rx_status, 0, sizeof(rx_status)); | |
f4bda337 | 822 | rx_status.flag |= RX_FLAG_MACTIME_START; |
e8261171 JB |
823 | rx_status.freq = chan->center_freq; |
824 | rx_status.band = chan->band; | |
dad6330d KB |
825 | if (info->control.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) { |
826 | rx_status.rate_idx = | |
827 | ieee80211_rate_get_vht_mcs(&info->control.rates[0]); | |
828 | rx_status.vht_nss = | |
829 | ieee80211_rate_get_vht_nss(&info->control.rates[0]); | |
830 | rx_status.flag |= RX_FLAG_VHT; | |
831 | } else { | |
832 | rx_status.rate_idx = info->control.rates[0].idx; | |
833 | if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS) | |
834 | rx_status.flag |= RX_FLAG_HT; | |
835 | } | |
281ed297 JM |
836 | if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH) |
837 | rx_status.flag |= RX_FLAG_40MHZ; | |
838 | if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI) | |
839 | rx_status.flag |= RX_FLAG_SHORT_GI; | |
4b14c96d | 840 | /* TODO: simulate real signal strength (and optional packet loss) */ |
bdd7bd16 | 841 | rx_status.signal = data->power_level - 50; |
acc1e7a3 | 842 | |
fc6971d4 JM |
843 | if (data->ps != PS_DISABLED) |
844 | hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM); | |
845 | ||
90e3012e JB |
846 | /* release the skb's source info */ |
847 | skb_orphan(skb); | |
c0acf38e | 848 | skb_dst_drop(skb); |
90e3012e JB |
849 | skb->mark = 0; |
850 | secpath_reset(skb); | |
851 | nf_reset(skb); | |
852 | ||
b66851c3 TP |
853 | /* |
854 | * Get absolute mactime here so all HWs RX at the "same time", and | |
855 | * absolute TX time for beacon mactime so the timestamp matches. | |
856 | * Giving beacons a different mactime than non-beacons looks messy, but | |
857 | * it helps the Toffset be exact and a ~10us mactime discrepancy | |
858 | * probably doesn't really matter. | |
859 | */ | |
860 | if (ieee80211_is_beacon(hdr->frame_control) || | |
861 | ieee80211_is_probe_resp(hdr->frame_control)) | |
862 | now = data->abs_bcn_ts; | |
863 | else | |
864 | now = mac80211_hwsim_get_tsf_raw(); | |
865 | ||
acc1e7a3 | 866 | /* Copy skb to all enabled radios that are on the current frequency */ |
0e057d73 JB |
867 | spin_lock(&hwsim_radio_lock); |
868 | list_for_each_entry(data2, &hwsim_radios, list) { | |
acc1e7a3 | 869 | struct sk_buff *nskb; |
e8261171 JB |
870 | struct tx_iter_data tx_iter_data = { |
871 | .receive = false, | |
872 | .channel = chan, | |
873 | }; | |
acc1e7a3 | 874 | |
0e057d73 | 875 | if (data == data2) |
acc1e7a3 | 876 | continue; |
0e057d73 | 877 | |
e8261171 JB |
878 | if (!data2->started || (data2->idle && !data2->tmp_chan) || |
879 | !hwsim_ps_rx_ok(data2, skb)) | |
acc1e7a3 JM |
880 | continue; |
881 | ||
e8261171 JB |
882 | if (!(data->group & data2->group)) |
883 | continue; | |
884 | ||
885 | if (!hwsim_chans_compat(chan, data2->tmp_chan) && | |
886 | !hwsim_chans_compat(chan, data2->channel)) { | |
887 | ieee80211_iterate_active_interfaces_atomic( | |
8b2c9824 JB |
888 | data2->hw, IEEE80211_IFACE_ITER_NORMAL, |
889 | mac80211_hwsim_tx_iter, &tx_iter_data); | |
e8261171 JB |
890 | if (!tx_iter_data.receive) |
891 | continue; | |
892 | } | |
893 | ||
90b9e446 JB |
894 | /* |
895 | * reserve some space for our vendor and the normal | |
896 | * radiotap header, since we're copying anyway | |
897 | */ | |
a357d7f9 JB |
898 | if (skb->len < PAGE_SIZE && paged_rx) { |
899 | struct page *page = alloc_page(GFP_ATOMIC); | |
900 | ||
901 | if (!page) | |
902 | continue; | |
903 | ||
904 | nskb = dev_alloc_skb(128); | |
905 | if (!nskb) { | |
906 | __free_page(page); | |
907 | continue; | |
908 | } | |
909 | ||
910 | memcpy(page_address(page), skb->data, skb->len); | |
911 | skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len); | |
912 | } else { | |
913 | nskb = skb_copy(skb, GFP_ATOMIC); | |
914 | if (!nskb) | |
915 | continue; | |
916 | } | |
acc1e7a3 | 917 | |
265dc7f0 | 918 | if (mac80211_hwsim_addr_match(data2, hdr->addr1)) |
0e057d73 | 919 | ack = true; |
f483ad25 | 920 | |
b66851c3 | 921 | rx_status.mactime = now + data2->tsf_offset; |
90b9e446 JB |
922 | #if 0 |
923 | /* | |
924 | * Don't enable this code by default as the OUI 00:00:00 | |
925 | * is registered to Xerox so we shouldn't use it here, it | |
926 | * might find its way into pcap files. | |
927 | * Note that this code requires the headroom in the SKB | |
928 | * that was allocated earlier. | |
929 | */ | |
930 | rx_status.vendor_radiotap_oui[0] = 0x00; | |
931 | rx_status.vendor_radiotap_oui[1] = 0x00; | |
932 | rx_status.vendor_radiotap_oui[2] = 0x00; | |
933 | rx_status.vendor_radiotap_subns = 127; | |
934 | /* | |
935 | * Radiotap vendor namespaces can (and should) also be | |
936 | * split into fields by using the standard radiotap | |
937 | * presence bitmap mechanism. Use just BIT(0) here for | |
938 | * the presence bitmap. | |
939 | */ | |
940 | rx_status.vendor_radiotap_bitmap = BIT(0); | |
941 | /* We have 8 bytes of (dummy) data */ | |
942 | rx_status.vendor_radiotap_len = 8; | |
943 | /* For testing, also require it to be aligned */ | |
944 | rx_status.vendor_radiotap_align = 8; | |
945 | /* push the data */ | |
946 | memcpy(skb_push(nskb, 8), "ABCDEFGH", 8); | |
947 | #endif | |
948 | ||
f1d58c25 JB |
949 | memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status)); |
950 | ieee80211_rx_irqsafe(data2->hw, nskb); | |
acc1e7a3 | 951 | } |
0e057d73 | 952 | spin_unlock(&hwsim_radio_lock); |
acc1e7a3 | 953 | |
e36cfdc9 JM |
954 | return ack; |
955 | } | |
956 | ||
36323f81 TH |
957 | static void mac80211_hwsim_tx(struct ieee80211_hw *hw, |
958 | struct ieee80211_tx_control *control, | |
959 | struct sk_buff *skb) | |
e36cfdc9 | 960 | { |
e8261171 JB |
961 | struct mac80211_hwsim_data *data = hw->priv; |
962 | struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb); | |
963 | struct ieee80211_chanctx_conf *chanctx_conf; | |
964 | struct ieee80211_channel *channel; | |
0e057d73 | 965 | bool ack; |
15e47304 | 966 | u32 _portid; |
e36cfdc9 | 967 | |
e8261171 | 968 | if (WARN_ON(skb->len < 10)) { |
e36cfdc9 | 969 | /* Should not happen; just a sanity check for addr1 use */ |
fe0f3cd2 | 970 | ieee80211_free_txskb(hw, skb); |
7bb45683 | 971 | return; |
e36cfdc9 JM |
972 | } |
973 | ||
38ed5048 | 974 | if (data->channels == 1) { |
e8261171 JB |
975 | channel = data->channel; |
976 | } else if (txi->hw_queue == 4) { | |
977 | channel = data->tmp_chan; | |
978 | } else { | |
979 | chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf); | |
980 | if (chanctx_conf) | |
4bf88530 | 981 | channel = chanctx_conf->def.chan; |
e8261171 JB |
982 | else |
983 | channel = NULL; | |
984 | } | |
985 | ||
986 | if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) { | |
fe0f3cd2 | 987 | ieee80211_free_txskb(hw, skb); |
e8261171 JB |
988 | return; |
989 | } | |
990 | ||
991 | if (data->idle && !data->tmp_chan) { | |
992 | wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n"); | |
fe0f3cd2 | 993 | ieee80211_free_txskb(hw, skb); |
e8261171 JB |
994 | return; |
995 | } | |
996 | ||
997 | if (txi->control.vif) | |
998 | hwsim_check_magic(txi->control.vif); | |
999 | if (control->sta) | |
1000 | hwsim_check_sta_magic(control->sta); | |
1001 | ||
81338410 | 1002 | if (hw->flags & IEEE80211_HW_SUPPORTS_RC_TABLE) |
1eb32179 KB |
1003 | ieee80211_get_tx_rates(txi->control.vif, control->sta, skb, |
1004 | txi->control.rates, | |
1005 | ARRAY_SIZE(txi->control.rates)); | |
e8261171 | 1006 | |
1eb32179 | 1007 | txi->rate_driver_data[0] = channel; |
e8261171 JB |
1008 | mac80211_hwsim_monitor_rx(hw, skb, channel); |
1009 | ||
7882513b | 1010 | /* wmediumd mode check */ |
15e47304 | 1011 | _portid = ACCESS_ONCE(wmediumd_portid); |
7882513b | 1012 | |
15e47304 EB |
1013 | if (_portid) |
1014 | return mac80211_hwsim_tx_frame_nl(hw, skb, _portid); | |
7882513b JL |
1015 | |
1016 | /* NO wmediumd detected, perfect medium simulation */ | |
e8261171 | 1017 | ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel); |
7882513b | 1018 | |
6c085227 JM |
1019 | if (ack && skb->len >= 16) { |
1020 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; | |
e8261171 | 1021 | mac80211_hwsim_monitor_ack(channel, hdr->addr2); |
6c085227 | 1022 | } |
e36cfdc9 | 1023 | |
e6a9854b | 1024 | ieee80211_tx_info_clear_status(txi); |
2a4ffa4c JC |
1025 | |
1026 | /* frame was transmitted at most favorable rate at first attempt */ | |
1027 | txi->control.rates[0].count = 1; | |
1028 | txi->control.rates[1].idx = -1; | |
1029 | ||
e6a9854b JB |
1030 | if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack) |
1031 | txi->flags |= IEEE80211_TX_STAT_ACK; | |
acc1e7a3 | 1032 | ieee80211_tx_status_irqsafe(hw, skb); |
acc1e7a3 JM |
1033 | } |
1034 | ||
1035 | ||
1036 | static int mac80211_hwsim_start(struct ieee80211_hw *hw) | |
1037 | { | |
1038 | struct mac80211_hwsim_data *data = hw->priv; | |
c96c31e4 | 1039 | wiphy_debug(hw->wiphy, "%s\n", __func__); |
3db1cd5c | 1040 | data->started = true; |
acc1e7a3 JM |
1041 | return 0; |
1042 | } | |
1043 | ||
1044 | ||
1045 | static void mac80211_hwsim_stop(struct ieee80211_hw *hw) | |
1046 | { | |
1047 | struct mac80211_hwsim_data *data = hw->priv; | |
3db1cd5c | 1048 | data->started = false; |
01e59e46 | 1049 | tasklet_hrtimer_cancel(&data->beacon_timer); |
c96c31e4 | 1050 | wiphy_debug(hw->wiphy, "%s\n", __func__); |
acc1e7a3 JM |
1051 | } |
1052 | ||
1053 | ||
1054 | static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw, | |
1ed32e4f | 1055 | struct ieee80211_vif *vif) |
acc1e7a3 | 1056 | { |
c96c31e4 | 1057 | wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n", |
2ca27bcf JB |
1058 | __func__, ieee80211_vif_type_p2p(vif), |
1059 | vif->addr); | |
1ed32e4f | 1060 | hwsim_set_magic(vif); |
e8261171 JB |
1061 | |
1062 | vif->cab_queue = 0; | |
1063 | vif->hw_queue[IEEE80211_AC_VO] = 0; | |
1064 | vif->hw_queue[IEEE80211_AC_VI] = 1; | |
1065 | vif->hw_queue[IEEE80211_AC_BE] = 2; | |
1066 | vif->hw_queue[IEEE80211_AC_BK] = 3; | |
1067 | ||
acc1e7a3 JM |
1068 | return 0; |
1069 | } | |
1070 | ||
1071 | ||
c35d0270 JB |
1072 | static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw, |
1073 | struct ieee80211_vif *vif, | |
2ca27bcf JB |
1074 | enum nl80211_iftype newtype, |
1075 | bool newp2p) | |
c35d0270 | 1076 | { |
2ca27bcf | 1077 | newtype = ieee80211_iftype_p2p(newtype, newp2p); |
c35d0270 JB |
1078 | wiphy_debug(hw->wiphy, |
1079 | "%s (old type=%d, new type=%d, mac_addr=%pM)\n", | |
2ca27bcf JB |
1080 | __func__, ieee80211_vif_type_p2p(vif), |
1081 | newtype, vif->addr); | |
c35d0270 JB |
1082 | hwsim_check_magic(vif); |
1083 | ||
3eb92f6a JB |
1084 | /* |
1085 | * interface may change from non-AP to AP in | |
1086 | * which case this needs to be set up again | |
1087 | */ | |
1088 | vif->cab_queue = 0; | |
1089 | ||
c35d0270 JB |
1090 | return 0; |
1091 | } | |
1092 | ||
acc1e7a3 | 1093 | static void mac80211_hwsim_remove_interface( |
1ed32e4f | 1094 | struct ieee80211_hw *hw, struct ieee80211_vif *vif) |
acc1e7a3 | 1095 | { |
c96c31e4 | 1096 | wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n", |
2ca27bcf JB |
1097 | __func__, ieee80211_vif_type_p2p(vif), |
1098 | vif->addr); | |
1ed32e4f JB |
1099 | hwsim_check_magic(vif); |
1100 | hwsim_clear_magic(vif); | |
acc1e7a3 JM |
1101 | } |
1102 | ||
e8261171 JB |
1103 | static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw, |
1104 | struct sk_buff *skb, | |
1105 | struct ieee80211_channel *chan) | |
1106 | { | |
1107 | u32 _pid = ACCESS_ONCE(wmediumd_portid); | |
1108 | ||
81338410 | 1109 | if (hw->flags & IEEE80211_HW_SUPPORTS_RC_TABLE) { |
1eb32179 KB |
1110 | struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb); |
1111 | ieee80211_get_tx_rates(txi->control.vif, NULL, skb, | |
1112 | txi->control.rates, | |
1113 | ARRAY_SIZE(txi->control.rates)); | |
1114 | } | |
1115 | ||
e8261171 JB |
1116 | mac80211_hwsim_monitor_rx(hw, skb, chan); |
1117 | ||
1118 | if (_pid) | |
1119 | return mac80211_hwsim_tx_frame_nl(hw, skb, _pid); | |
1120 | ||
1121 | mac80211_hwsim_tx_frame_no_nl(hw, skb, chan); | |
1122 | dev_kfree_skb(skb); | |
1123 | } | |
acc1e7a3 JM |
1124 | |
1125 | static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac, | |
1126 | struct ieee80211_vif *vif) | |
1127 | { | |
b66851c3 TP |
1128 | struct mac80211_hwsim_data *data = arg; |
1129 | struct ieee80211_hw *hw = data->hw; | |
1130 | struct ieee80211_tx_info *info; | |
1131 | struct ieee80211_rate *txrate; | |
1132 | struct ieee80211_mgmt *mgmt; | |
acc1e7a3 | 1133 | struct sk_buff *skb; |
acc1e7a3 | 1134 | |
8aa21e6f JB |
1135 | hwsim_check_magic(vif); |
1136 | ||
55b39619 | 1137 | if (vif->type != NL80211_IFTYPE_AP && |
2b2d7795 JB |
1138 | vif->type != NL80211_IFTYPE_MESH_POINT && |
1139 | vif->type != NL80211_IFTYPE_ADHOC) | |
acc1e7a3 JM |
1140 | return; |
1141 | ||
1142 | skb = ieee80211_beacon_get(hw, vif); | |
1143 | if (skb == NULL) | |
1144 | return; | |
b66851c3 | 1145 | info = IEEE80211_SKB_CB(skb); |
81338410 | 1146 | if (hw->flags & IEEE80211_HW_SUPPORTS_RC_TABLE) |
1eb32179 KB |
1147 | ieee80211_get_tx_rates(vif, NULL, skb, |
1148 | info->control.rates, | |
1149 | ARRAY_SIZE(info->control.rates)); | |
1150 | ||
b66851c3 TP |
1151 | txrate = ieee80211_get_tx_rate(hw, info); |
1152 | ||
1153 | mgmt = (struct ieee80211_mgmt *) skb->data; | |
1154 | /* fake header transmission time */ | |
1155 | data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw(); | |
1156 | mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts + | |
1157 | data->tsf_offset + | |
1158 | 24 * 8 * 10 / txrate->bitrate); | |
7882513b | 1159 | |
e8261171 | 1160 | mac80211_hwsim_tx_frame(hw, skb, |
4bf88530 | 1161 | rcu_dereference(vif->chanctx_conf)->def.chan); |
acc1e7a3 JM |
1162 | } |
1163 | ||
01e59e46 TP |
1164 | static enum hrtimer_restart |
1165 | mac80211_hwsim_beacon(struct hrtimer *timer) | |
acc1e7a3 | 1166 | { |
01e59e46 TP |
1167 | struct mac80211_hwsim_data *data = |
1168 | container_of(timer, struct mac80211_hwsim_data, | |
1169 | beacon_timer.timer); | |
1170 | struct ieee80211_hw *hw = data->hw; | |
1171 | u64 bcn_int = data->beacon_int; | |
1172 | ktime_t next_bcn; | |
acc1e7a3 | 1173 | |
4c4c671a | 1174 | if (!data->started) |
01e59e46 | 1175 | goto out; |
acc1e7a3 | 1176 | |
f248f105 | 1177 | ieee80211_iterate_active_interfaces_atomic( |
8b2c9824 | 1178 | hw, IEEE80211_IFACE_ITER_NORMAL, |
b66851c3 | 1179 | mac80211_hwsim_beacon_tx, data); |
acc1e7a3 | 1180 | |
c51f8783 TP |
1181 | /* beacon at new TBTT + beacon interval */ |
1182 | if (data->bcn_delta) { | |
1183 | bcn_int -= data->bcn_delta; | |
1184 | data->bcn_delta = 0; | |
1185 | } | |
1186 | ||
01e59e46 TP |
1187 | next_bcn = ktime_add(hrtimer_get_expires(timer), |
1188 | ns_to_ktime(bcn_int * 1000)); | |
1189 | tasklet_hrtimer_start(&data->beacon_timer, next_bcn, HRTIMER_MODE_ABS); | |
1190 | out: | |
1191 | return HRTIMER_NORESTART; | |
acc1e7a3 JM |
1192 | } |
1193 | ||
675a0b04 KB |
1194 | static const char * const hwsim_chanwidths[] = { |
1195 | [NL80211_CHAN_WIDTH_20_NOHT] = "noht", | |
1196 | [NL80211_CHAN_WIDTH_20] = "ht20", | |
1197 | [NL80211_CHAN_WIDTH_40] = "ht40", | |
1198 | [NL80211_CHAN_WIDTH_80] = "vht80", | |
1199 | [NL80211_CHAN_WIDTH_80P80] = "vht80p80", | |
1200 | [NL80211_CHAN_WIDTH_160] = "vht160", | |
0aaffa9b | 1201 | }; |
acc1e7a3 | 1202 | |
e8975581 | 1203 | static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed) |
acc1e7a3 JM |
1204 | { |
1205 | struct mac80211_hwsim_data *data = hw->priv; | |
e8975581 | 1206 | struct ieee80211_conf *conf = &hw->conf; |
0f78231b JB |
1207 | static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = { |
1208 | [IEEE80211_SMPS_AUTOMATIC] = "auto", | |
1209 | [IEEE80211_SMPS_OFF] = "off", | |
1210 | [IEEE80211_SMPS_STATIC] = "static", | |
1211 | [IEEE80211_SMPS_DYNAMIC] = "dynamic", | |
1212 | }; | |
1213 | ||
675a0b04 KB |
1214 | if (conf->chandef.chan) |
1215 | wiphy_debug(hw->wiphy, | |
1216 | "%s (freq=%d(%d - %d)/%s idle=%d ps=%d smps=%s)\n", | |
1217 | __func__, | |
1218 | conf->chandef.chan->center_freq, | |
1219 | conf->chandef.center_freq1, | |
1220 | conf->chandef.center_freq2, | |
1221 | hwsim_chanwidths[conf->chandef.width], | |
1222 | !!(conf->flags & IEEE80211_CONF_IDLE), | |
1223 | !!(conf->flags & IEEE80211_CONF_PS), | |
1224 | smps_modes[conf->smps_mode]); | |
1225 | else | |
1226 | wiphy_debug(hw->wiphy, | |
1227 | "%s (freq=0 idle=%d ps=%d smps=%s)\n", | |
1228 | __func__, | |
1229 | !!(conf->flags & IEEE80211_CONF_IDLE), | |
1230 | !!(conf->flags & IEEE80211_CONF_PS), | |
1231 | smps_modes[conf->smps_mode]); | |
acc1e7a3 | 1232 | |
70541839 JM |
1233 | data->idle = !!(conf->flags & IEEE80211_CONF_IDLE); |
1234 | ||
675a0b04 | 1235 | data->channel = conf->chandef.chan; |
e8261171 | 1236 | |
38ed5048 | 1237 | WARN_ON(data->channel && data->channels > 1); |
e8261171 | 1238 | |
bdd7bd16 | 1239 | data->power_level = conf->power_level; |
4c4c671a | 1240 | if (!data->started || !data->beacon_int) |
01e59e46 TP |
1241 | tasklet_hrtimer_cancel(&data->beacon_timer); |
1242 | else if (!hrtimer_is_queued(&data->beacon_timer.timer)) { | |
c51f8783 TP |
1243 | u64 tsf = mac80211_hwsim_get_tsf(hw, NULL); |
1244 | u32 bcn_int = data->beacon_int; | |
1245 | u64 until_tbtt = bcn_int - do_div(tsf, bcn_int); | |
1246 | ||
01e59e46 | 1247 | tasklet_hrtimer_start(&data->beacon_timer, |
c51f8783 | 1248 | ns_to_ktime(until_tbtt * 1000), |
01e59e46 TP |
1249 | HRTIMER_MODE_REL); |
1250 | } | |
acc1e7a3 JM |
1251 | |
1252 | return 0; | |
1253 | } | |
1254 | ||
1255 | ||
1256 | static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw, | |
1257 | unsigned int changed_flags, | |
3ac64bee | 1258 | unsigned int *total_flags,u64 multicast) |
acc1e7a3 JM |
1259 | { |
1260 | struct mac80211_hwsim_data *data = hw->priv; | |
1261 | ||
c96c31e4 | 1262 | wiphy_debug(hw->wiphy, "%s\n", __func__); |
acc1e7a3 JM |
1263 | |
1264 | data->rx_filter = 0; | |
1265 | if (*total_flags & FIF_PROMISC_IN_BSS) | |
1266 | data->rx_filter |= FIF_PROMISC_IN_BSS; | |
1267 | if (*total_flags & FIF_ALLMULTI) | |
1268 | data->rx_filter |= FIF_ALLMULTI; | |
1269 | ||
1270 | *total_flags = data->rx_filter; | |
1271 | } | |
1272 | ||
0bb861e6 JM |
1273 | static void mac80211_hwsim_bcn_en_iter(void *data, u8 *mac, |
1274 | struct ieee80211_vif *vif) | |
1275 | { | |
1276 | unsigned int *count = data; | |
1277 | struct hwsim_vif_priv *vp = (void *)vif->drv_priv; | |
1278 | ||
1279 | if (vp->bcn_en) | |
1280 | (*count)++; | |
1281 | } | |
1282 | ||
8aa21e6f JB |
1283 | static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw, |
1284 | struct ieee80211_vif *vif, | |
1285 | struct ieee80211_bss_conf *info, | |
1286 | u32 changed) | |
1287 | { | |
fc6971d4 | 1288 | struct hwsim_vif_priv *vp = (void *)vif->drv_priv; |
57c4d7b4 | 1289 | struct mac80211_hwsim_data *data = hw->priv; |
fc6971d4 | 1290 | |
8aa21e6f | 1291 | hwsim_check_magic(vif); |
fe63bfa3 | 1292 | |
0bb861e6 JM |
1293 | wiphy_debug(hw->wiphy, "%s(changed=0x%x vif->addr=%pM)\n", |
1294 | __func__, changed, vif->addr); | |
fe63bfa3 | 1295 | |
2d0ddec5 | 1296 | if (changed & BSS_CHANGED_BSSID) { |
c96c31e4 JP |
1297 | wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n", |
1298 | __func__, info->bssid); | |
2d0ddec5 JB |
1299 | memcpy(vp->bssid, info->bssid, ETH_ALEN); |
1300 | } | |
1301 | ||
fe63bfa3 | 1302 | if (changed & BSS_CHANGED_ASSOC) { |
c96c31e4 JP |
1303 | wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n", |
1304 | info->assoc, info->aid); | |
fc6971d4 JM |
1305 | vp->assoc = info->assoc; |
1306 | vp->aid = info->aid; | |
fe63bfa3 JM |
1307 | } |
1308 | ||
57c4d7b4 | 1309 | if (changed & BSS_CHANGED_BEACON_INT) { |
c96c31e4 | 1310 | wiphy_debug(hw->wiphy, " BCNINT: %d\n", info->beacon_int); |
01e59e46 TP |
1311 | data->beacon_int = info->beacon_int * 1024; |
1312 | } | |
1313 | ||
1314 | if (changed & BSS_CHANGED_BEACON_ENABLED) { | |
1315 | wiphy_debug(hw->wiphy, " BCN EN: %d\n", info->enable_beacon); | |
0bb861e6 | 1316 | vp->bcn_en = info->enable_beacon; |
01e59e46 TP |
1317 | if (data->started && |
1318 | !hrtimer_is_queued(&data->beacon_timer.timer) && | |
1319 | info->enable_beacon) { | |
c51f8783 TP |
1320 | u64 tsf, until_tbtt; |
1321 | u32 bcn_int; | |
01e59e46 TP |
1322 | if (WARN_ON(!data->beacon_int)) |
1323 | data->beacon_int = 1000 * 1024; | |
c51f8783 TP |
1324 | tsf = mac80211_hwsim_get_tsf(hw, vif); |
1325 | bcn_int = data->beacon_int; | |
1326 | until_tbtt = bcn_int - do_div(tsf, bcn_int); | |
01e59e46 | 1327 | tasklet_hrtimer_start(&data->beacon_timer, |
c51f8783 | 1328 | ns_to_ktime(until_tbtt * 1000), |
01e59e46 | 1329 | HRTIMER_MODE_REL); |
0bb861e6 JM |
1330 | } else if (!info->enable_beacon) { |
1331 | unsigned int count = 0; | |
cdb1b805 | 1332 | ieee80211_iterate_active_interfaces_atomic( |
0bb861e6 JM |
1333 | data->hw, IEEE80211_IFACE_ITER_NORMAL, |
1334 | mac80211_hwsim_bcn_en_iter, &count); | |
1335 | wiphy_debug(hw->wiphy, " beaconing vifs remaining: %u", | |
1336 | count); | |
1337 | if (count == 0) | |
1338 | tasklet_hrtimer_cancel(&data->beacon_timer); | |
1339 | } | |
57c4d7b4 JB |
1340 | } |
1341 | ||
fe63bfa3 | 1342 | if (changed & BSS_CHANGED_ERP_CTS_PROT) { |
c96c31e4 JP |
1343 | wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n", |
1344 | info->use_cts_prot); | |
fe63bfa3 JM |
1345 | } |
1346 | ||
1347 | if (changed & BSS_CHANGED_ERP_PREAMBLE) { | |
c96c31e4 JP |
1348 | wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n", |
1349 | info->use_short_preamble); | |
fe63bfa3 JM |
1350 | } |
1351 | ||
1352 | if (changed & BSS_CHANGED_ERP_SLOT) { | |
c96c31e4 | 1353 | wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot); |
fe63bfa3 JM |
1354 | } |
1355 | ||
1356 | if (changed & BSS_CHANGED_HT) { | |
4bf88530 JB |
1357 | wiphy_debug(hw->wiphy, " HT: op_mode=0x%x\n", |
1358 | info->ht_operation_mode); | |
fe63bfa3 JM |
1359 | } |
1360 | ||
1361 | if (changed & BSS_CHANGED_BASIC_RATES) { | |
c96c31e4 JP |
1362 | wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n", |
1363 | (unsigned long long) info->basic_rates); | |
fe63bfa3 | 1364 | } |
cbc668a7 JB |
1365 | |
1366 | if (changed & BSS_CHANGED_TXPOWER) | |
1367 | wiphy_debug(hw->wiphy, " TX Power: %d dBm\n", info->txpower); | |
8aa21e6f JB |
1368 | } |
1369 | ||
1d669cbf JB |
1370 | static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw, |
1371 | struct ieee80211_vif *vif, | |
1372 | struct ieee80211_sta *sta) | |
1373 | { | |
1374 | hwsim_check_magic(vif); | |
1375 | hwsim_set_sta_magic(sta); | |
1376 | ||
1377 | return 0; | |
1378 | } | |
1379 | ||
1380 | static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw, | |
1381 | struct ieee80211_vif *vif, | |
1382 | struct ieee80211_sta *sta) | |
1383 | { | |
1384 | hwsim_check_magic(vif); | |
1385 | hwsim_clear_sta_magic(sta); | |
1386 | ||
1387 | return 0; | |
1388 | } | |
1389 | ||
8aa21e6f JB |
1390 | static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw, |
1391 | struct ieee80211_vif *vif, | |
17741cdc JB |
1392 | enum sta_notify_cmd cmd, |
1393 | struct ieee80211_sta *sta) | |
8aa21e6f JB |
1394 | { |
1395 | hwsim_check_magic(vif); | |
1d669cbf | 1396 | |
81c06523 | 1397 | switch (cmd) { |
89fad578 CL |
1398 | case STA_NOTIFY_SLEEP: |
1399 | case STA_NOTIFY_AWAKE: | |
1400 | /* TODO: make good use of these flags */ | |
1401 | break; | |
1d669cbf JB |
1402 | default: |
1403 | WARN(1, "Invalid sta notify: %d\n", cmd); | |
1404 | break; | |
81c06523 JB |
1405 | } |
1406 | } | |
1407 | ||
1408 | static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw, | |
1409 | struct ieee80211_sta *sta, | |
1410 | bool set) | |
1411 | { | |
1412 | hwsim_check_sta_magic(sta); | |
1413 | return 0; | |
8aa21e6f | 1414 | } |
acc1e7a3 | 1415 | |
1e898ff8 | 1416 | static int mac80211_hwsim_conf_tx( |
8a3a3c85 EP |
1417 | struct ieee80211_hw *hw, |
1418 | struct ieee80211_vif *vif, u16 queue, | |
1e898ff8 JM |
1419 | const struct ieee80211_tx_queue_params *params) |
1420 | { | |
c96c31e4 JP |
1421 | wiphy_debug(hw->wiphy, |
1422 | "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n", | |
1423 | __func__, queue, | |
1424 | params->txop, params->cw_min, | |
1425 | params->cw_max, params->aifs); | |
1e898ff8 JM |
1426 | return 0; |
1427 | } | |
1428 | ||
1289723e HS |
1429 | static int mac80211_hwsim_get_survey( |
1430 | struct ieee80211_hw *hw, int idx, | |
1431 | struct survey_info *survey) | |
1432 | { | |
1433 | struct ieee80211_conf *conf = &hw->conf; | |
1434 | ||
c96c31e4 | 1435 | wiphy_debug(hw->wiphy, "%s (idx=%d)\n", __func__, idx); |
1289723e HS |
1436 | |
1437 | if (idx != 0) | |
1438 | return -ENOENT; | |
1439 | ||
1440 | /* Current channel */ | |
675a0b04 | 1441 | survey->channel = conf->chandef.chan; |
1289723e HS |
1442 | |
1443 | /* | |
1444 | * Magically conjured noise level --- this is only ok for simulated hardware. | |
1445 | * | |
1446 | * A real driver which cannot determine the real channel noise MUST NOT | |
1447 | * report any noise, especially not a magically conjured one :-) | |
1448 | */ | |
1449 | survey->filled = SURVEY_INFO_NOISE_DBM; | |
1450 | survey->noise = -92; | |
1451 | ||
1452 | return 0; | |
1453 | } | |
1454 | ||
aff89a9b JB |
1455 | #ifdef CONFIG_NL80211_TESTMODE |
1456 | /* | |
1457 | * This section contains example code for using netlink | |
1458 | * attributes with the testmode command in nl80211. | |
1459 | */ | |
1460 | ||
1461 | /* These enums need to be kept in sync with userspace */ | |
1462 | enum hwsim_testmode_attr { | |
1463 | __HWSIM_TM_ATTR_INVALID = 0, | |
1464 | HWSIM_TM_ATTR_CMD = 1, | |
1465 | HWSIM_TM_ATTR_PS = 2, | |
1466 | ||
1467 | /* keep last */ | |
1468 | __HWSIM_TM_ATTR_AFTER_LAST, | |
1469 | HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1 | |
1470 | }; | |
1471 | ||
1472 | enum hwsim_testmode_cmd { | |
1473 | HWSIM_TM_CMD_SET_PS = 0, | |
1474 | HWSIM_TM_CMD_GET_PS = 1, | |
4d6d0ae2 JB |
1475 | HWSIM_TM_CMD_STOP_QUEUES = 2, |
1476 | HWSIM_TM_CMD_WAKE_QUEUES = 3, | |
aff89a9b JB |
1477 | }; |
1478 | ||
1479 | static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = { | |
1480 | [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 }, | |
1481 | [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 }, | |
1482 | }; | |
1483 | ||
5bc38193 | 1484 | static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw, |
52981cd7 | 1485 | struct ieee80211_vif *vif, |
5bc38193 | 1486 | void *data, int len) |
aff89a9b JB |
1487 | { |
1488 | struct mac80211_hwsim_data *hwsim = hw->priv; | |
1489 | struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1]; | |
1490 | struct sk_buff *skb; | |
1491 | int err, ps; | |
1492 | ||
1493 | err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len, | |
1494 | hwsim_testmode_policy); | |
1495 | if (err) | |
1496 | return err; | |
1497 | ||
1498 | if (!tb[HWSIM_TM_ATTR_CMD]) | |
1499 | return -EINVAL; | |
1500 | ||
1501 | switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) { | |
1502 | case HWSIM_TM_CMD_SET_PS: | |
1503 | if (!tb[HWSIM_TM_ATTR_PS]) | |
1504 | return -EINVAL; | |
1505 | ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]); | |
1506 | return hwsim_fops_ps_write(hwsim, ps); | |
1507 | case HWSIM_TM_CMD_GET_PS: | |
1508 | skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, | |
1509 | nla_total_size(sizeof(u32))); | |
1510 | if (!skb) | |
1511 | return -ENOMEM; | |
633c9389 DM |
1512 | if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps)) |
1513 | goto nla_put_failure; | |
aff89a9b | 1514 | return cfg80211_testmode_reply(skb); |
4d6d0ae2 JB |
1515 | case HWSIM_TM_CMD_STOP_QUEUES: |
1516 | ieee80211_stop_queues(hw); | |
1517 | return 0; | |
1518 | case HWSIM_TM_CMD_WAKE_QUEUES: | |
1519 | ieee80211_wake_queues(hw); | |
1520 | return 0; | |
aff89a9b JB |
1521 | default: |
1522 | return -EOPNOTSUPP; | |
1523 | } | |
1524 | ||
1525 | nla_put_failure: | |
1526 | kfree_skb(skb); | |
1527 | return -ENOBUFS; | |
1528 | } | |
1529 | #endif | |
1530 | ||
8b73d13a JB |
1531 | static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw, |
1532 | struct ieee80211_vif *vif, | |
1533 | enum ieee80211_ampdu_mlme_action action, | |
0b01f030 JB |
1534 | struct ieee80211_sta *sta, u16 tid, u16 *ssn, |
1535 | u8 buf_size) | |
8b73d13a JB |
1536 | { |
1537 | switch (action) { | |
1538 | case IEEE80211_AMPDU_TX_START: | |
1539 | ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid); | |
1540 | break; | |
18b559d5 JB |
1541 | case IEEE80211_AMPDU_TX_STOP_CONT: |
1542 | case IEEE80211_AMPDU_TX_STOP_FLUSH: | |
1543 | case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: | |
8b73d13a JB |
1544 | ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); |
1545 | break; | |
1546 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
1547 | break; | |
1548 | case IEEE80211_AMPDU_RX_START: | |
1549 | case IEEE80211_AMPDU_RX_STOP: | |
1550 | break; | |
1551 | default: | |
1552 | return -EOPNOTSUPP; | |
1553 | } | |
1554 | ||
1555 | return 0; | |
1556 | } | |
1557 | ||
39ecc01d | 1558 | static void mac80211_hwsim_flush(struct ieee80211_hw *hw, u32 queues, bool drop) |
a80f7c0b | 1559 | { |
7882513b | 1560 | /* Not implemented, queues only on kernel side */ |
a80f7c0b JB |
1561 | } |
1562 | ||
e8261171 | 1563 | static void hw_scan_work(struct work_struct *work) |
69068036 | 1564 | { |
e8261171 JB |
1565 | struct mac80211_hwsim_data *hwsim = |
1566 | container_of(work, struct mac80211_hwsim_data, hw_scan.work); | |
1567 | struct cfg80211_scan_request *req = hwsim->hw_scan_request; | |
1568 | int dwell, i; | |
69068036 | 1569 | |
e8261171 JB |
1570 | mutex_lock(&hwsim->mutex); |
1571 | if (hwsim->scan_chan_idx >= req->n_channels) { | |
1572 | wiphy_debug(hwsim->hw->wiphy, "hw scan complete\n"); | |
1573 | ieee80211_scan_completed(hwsim->hw, false); | |
1574 | hwsim->hw_scan_request = NULL; | |
1575 | hwsim->hw_scan_vif = NULL; | |
1576 | hwsim->tmp_chan = NULL; | |
1577 | mutex_unlock(&hwsim->mutex); | |
1578 | return; | |
1579 | } | |
1580 | ||
1581 | wiphy_debug(hwsim->hw->wiphy, "hw scan %d MHz\n", | |
1582 | req->channels[hwsim->scan_chan_idx]->center_freq); | |
1583 | ||
1584 | hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx]; | |
8fe02e16 | 1585 | if (hwsim->tmp_chan->flags & IEEE80211_CHAN_NO_IR || |
e8261171 JB |
1586 | !req->n_ssids) { |
1587 | dwell = 120; | |
1588 | } else { | |
1589 | dwell = 30; | |
1590 | /* send probes */ | |
1591 | for (i = 0; i < req->n_ssids; i++) { | |
1592 | struct sk_buff *probe; | |
1593 | ||
1594 | probe = ieee80211_probereq_get(hwsim->hw, | |
1595 | hwsim->hw_scan_vif, | |
1596 | req->ssids[i].ssid, | |
1597 | req->ssids[i].ssid_len, | |
b9a9ada1 | 1598 | req->ie_len); |
e8261171 JB |
1599 | if (!probe) |
1600 | continue; | |
b9a9ada1 JB |
1601 | |
1602 | if (req->ie_len) | |
1603 | memcpy(skb_put(probe, req->ie_len), req->ie, | |
1604 | req->ie_len); | |
1605 | ||
e8261171 JB |
1606 | local_bh_disable(); |
1607 | mac80211_hwsim_tx_frame(hwsim->hw, probe, | |
1608 | hwsim->tmp_chan); | |
1609 | local_bh_enable(); | |
1610 | } | |
1611 | } | |
1612 | ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, | |
1613 | msecs_to_jiffies(dwell)); | |
1614 | hwsim->scan_chan_idx++; | |
1615 | mutex_unlock(&hwsim->mutex); | |
69068036 JB |
1616 | } |
1617 | ||
1618 | static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw, | |
a060bbfe | 1619 | struct ieee80211_vif *vif, |
69068036 JB |
1620 | struct cfg80211_scan_request *req) |
1621 | { | |
e8261171 | 1622 | struct mac80211_hwsim_data *hwsim = hw->priv; |
69068036 | 1623 | |
e8261171 JB |
1624 | mutex_lock(&hwsim->mutex); |
1625 | if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) { | |
1626 | mutex_unlock(&hwsim->mutex); | |
1627 | return -EBUSY; | |
1628 | } | |
1629 | hwsim->hw_scan_request = req; | |
1630 | hwsim->hw_scan_vif = vif; | |
1631 | hwsim->scan_chan_idx = 0; | |
1632 | mutex_unlock(&hwsim->mutex); | |
69068036 | 1633 | |
e8261171 | 1634 | wiphy_debug(hw->wiphy, "hwsim hw_scan request\n"); |
69068036 | 1635 | |
e8261171 | 1636 | ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0); |
69068036 JB |
1637 | |
1638 | return 0; | |
1639 | } | |
1640 | ||
e8261171 JB |
1641 | static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw, |
1642 | struct ieee80211_vif *vif) | |
1643 | { | |
1644 | struct mac80211_hwsim_data *hwsim = hw->priv; | |
1645 | ||
1646 | wiphy_debug(hw->wiphy, "hwsim cancel_hw_scan\n"); | |
1647 | ||
1648 | cancel_delayed_work_sync(&hwsim->hw_scan); | |
1649 | ||
1650 | mutex_lock(&hwsim->mutex); | |
1651 | ieee80211_scan_completed(hwsim->hw, true); | |
1652 | hwsim->tmp_chan = NULL; | |
1653 | hwsim->hw_scan_request = NULL; | |
1654 | hwsim->hw_scan_vif = NULL; | |
1655 | mutex_unlock(&hwsim->mutex); | |
1656 | } | |
1657 | ||
f74cb0f7 LR |
1658 | static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw) |
1659 | { | |
1660 | struct mac80211_hwsim_data *hwsim = hw->priv; | |
1661 | ||
1662 | mutex_lock(&hwsim->mutex); | |
1663 | ||
1664 | if (hwsim->scanning) { | |
1665 | printk(KERN_DEBUG "two hwsim sw_scans detected!\n"); | |
1666 | goto out; | |
1667 | } | |
1668 | ||
1669 | printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n"); | |
1670 | hwsim->scanning = true; | |
1671 | ||
1672 | out: | |
1673 | mutex_unlock(&hwsim->mutex); | |
1674 | } | |
1675 | ||
1676 | static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw) | |
1677 | { | |
1678 | struct mac80211_hwsim_data *hwsim = hw->priv; | |
1679 | ||
1680 | mutex_lock(&hwsim->mutex); | |
1681 | ||
1682 | printk(KERN_DEBUG "hwsim sw_scan_complete\n"); | |
23ff98fc | 1683 | hwsim->scanning = false; |
f74cb0f7 LR |
1684 | |
1685 | mutex_unlock(&hwsim->mutex); | |
1686 | } | |
1687 | ||
e8261171 JB |
1688 | static void hw_roc_done(struct work_struct *work) |
1689 | { | |
1690 | struct mac80211_hwsim_data *hwsim = | |
1691 | container_of(work, struct mac80211_hwsim_data, roc_done.work); | |
1692 | ||
1693 | mutex_lock(&hwsim->mutex); | |
1694 | ieee80211_remain_on_channel_expired(hwsim->hw); | |
1695 | hwsim->tmp_chan = NULL; | |
1696 | mutex_unlock(&hwsim->mutex); | |
1697 | ||
1698 | wiphy_debug(hwsim->hw->wiphy, "hwsim ROC expired\n"); | |
1699 | } | |
1700 | ||
1701 | static int mac80211_hwsim_roc(struct ieee80211_hw *hw, | |
49884568 | 1702 | struct ieee80211_vif *vif, |
e8261171 | 1703 | struct ieee80211_channel *chan, |
d339d5ca IP |
1704 | int duration, |
1705 | enum ieee80211_roc_type type) | |
e8261171 JB |
1706 | { |
1707 | struct mac80211_hwsim_data *hwsim = hw->priv; | |
1708 | ||
1709 | mutex_lock(&hwsim->mutex); | |
1710 | if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) { | |
1711 | mutex_unlock(&hwsim->mutex); | |
1712 | return -EBUSY; | |
1713 | } | |
1714 | ||
1715 | hwsim->tmp_chan = chan; | |
1716 | mutex_unlock(&hwsim->mutex); | |
1717 | ||
1718 | wiphy_debug(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n", | |
1719 | chan->center_freq, duration); | |
1720 | ||
1721 | ieee80211_ready_on_channel(hw); | |
1722 | ||
1723 | ieee80211_queue_delayed_work(hw, &hwsim->roc_done, | |
1724 | msecs_to_jiffies(duration)); | |
1725 | return 0; | |
1726 | } | |
1727 | ||
1728 | static int mac80211_hwsim_croc(struct ieee80211_hw *hw) | |
1729 | { | |
1730 | struct mac80211_hwsim_data *hwsim = hw->priv; | |
1731 | ||
1732 | cancel_delayed_work_sync(&hwsim->roc_done); | |
1733 | ||
1734 | mutex_lock(&hwsim->mutex); | |
1735 | hwsim->tmp_chan = NULL; | |
1736 | mutex_unlock(&hwsim->mutex); | |
1737 | ||
1738 | wiphy_debug(hw->wiphy, "hwsim ROC canceled\n"); | |
1739 | ||
1740 | return 0; | |
1741 | } | |
1742 | ||
1743 | static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw, | |
1744 | struct ieee80211_chanctx_conf *ctx) | |
1745 | { | |
1746 | hwsim_set_chanctx_magic(ctx); | |
4bf88530 JB |
1747 | wiphy_debug(hw->wiphy, |
1748 | "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n", | |
1749 | ctx->def.chan->center_freq, ctx->def.width, | |
1750 | ctx->def.center_freq1, ctx->def.center_freq2); | |
e8261171 JB |
1751 | return 0; |
1752 | } | |
1753 | ||
1754 | static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw, | |
1755 | struct ieee80211_chanctx_conf *ctx) | |
1756 | { | |
4bf88530 JB |
1757 | wiphy_debug(hw->wiphy, |
1758 | "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n", | |
1759 | ctx->def.chan->center_freq, ctx->def.width, | |
1760 | ctx->def.center_freq1, ctx->def.center_freq2); | |
e8261171 JB |
1761 | hwsim_check_chanctx_magic(ctx); |
1762 | hwsim_clear_chanctx_magic(ctx); | |
1763 | } | |
1764 | ||
1765 | static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw, | |
1766 | struct ieee80211_chanctx_conf *ctx, | |
1767 | u32 changed) | |
1768 | { | |
1769 | hwsim_check_chanctx_magic(ctx); | |
4bf88530 JB |
1770 | wiphy_debug(hw->wiphy, |
1771 | "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n", | |
1772 | ctx->def.chan->center_freq, ctx->def.width, | |
1773 | ctx->def.center_freq1, ctx->def.center_freq2); | |
e8261171 JB |
1774 | } |
1775 | ||
1776 | static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw, | |
1777 | struct ieee80211_vif *vif, | |
1778 | struct ieee80211_chanctx_conf *ctx) | |
1779 | { | |
1780 | hwsim_check_magic(vif); | |
1781 | hwsim_check_chanctx_magic(ctx); | |
1782 | ||
1783 | return 0; | |
1784 | } | |
1785 | ||
1786 | static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw, | |
1787 | struct ieee80211_vif *vif, | |
1788 | struct ieee80211_chanctx_conf *ctx) | |
1789 | { | |
1790 | hwsim_check_magic(vif); | |
1791 | hwsim_check_chanctx_magic(ctx); | |
1792 | } | |
1793 | ||
38ed5048 | 1794 | static const struct ieee80211_ops mac80211_hwsim_ops = { |
acc1e7a3 JM |
1795 | .tx = mac80211_hwsim_tx, |
1796 | .start = mac80211_hwsim_start, | |
1797 | .stop = mac80211_hwsim_stop, | |
1798 | .add_interface = mac80211_hwsim_add_interface, | |
c35d0270 | 1799 | .change_interface = mac80211_hwsim_change_interface, |
acc1e7a3 JM |
1800 | .remove_interface = mac80211_hwsim_remove_interface, |
1801 | .config = mac80211_hwsim_config, | |
1802 | .configure_filter = mac80211_hwsim_configure_filter, | |
8aa21e6f | 1803 | .bss_info_changed = mac80211_hwsim_bss_info_changed, |
1d669cbf JB |
1804 | .sta_add = mac80211_hwsim_sta_add, |
1805 | .sta_remove = mac80211_hwsim_sta_remove, | |
8aa21e6f | 1806 | .sta_notify = mac80211_hwsim_sta_notify, |
81c06523 | 1807 | .set_tim = mac80211_hwsim_set_tim, |
1e898ff8 | 1808 | .conf_tx = mac80211_hwsim_conf_tx, |
1289723e | 1809 | .get_survey = mac80211_hwsim_get_survey, |
aff89a9b | 1810 | CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd) |
8b73d13a | 1811 | .ampdu_action = mac80211_hwsim_ampdu_action, |
f74cb0f7 LR |
1812 | .sw_scan_start = mac80211_hwsim_sw_scan, |
1813 | .sw_scan_complete = mac80211_hwsim_sw_scan_complete, | |
a80f7c0b | 1814 | .flush = mac80211_hwsim_flush, |
12ce8ba3 JC |
1815 | .get_tsf = mac80211_hwsim_get_tsf, |
1816 | .set_tsf = mac80211_hwsim_set_tsf, | |
acc1e7a3 JM |
1817 | }; |
1818 | ||
38ed5048 | 1819 | static struct ieee80211_ops mac80211_hwsim_mchan_ops; |
acc1e7a3 | 1820 | |
de0421d5 | 1821 | static int __init mac80211_hwsim_create_radio(void) |
e4afb603 | 1822 | { |
de0421d5 JB |
1823 | int err; |
1824 | u8 addr[ETH_ALEN]; | |
e4afb603 | 1825 | struct mac80211_hwsim_data *data; |
de0421d5 JB |
1826 | struct ieee80211_hw *hw; |
1827 | enum ieee80211_band band; | |
1828 | const struct ieee80211_ops *ops = &mac80211_hwsim_ops; | |
1829 | int idx; | |
0e057d73 JB |
1830 | |
1831 | spin_lock_bh(&hwsim_radio_lock); | |
de0421d5 | 1832 | idx = hwsim_radio_idx++; |
e4afb603 | 1833 | spin_unlock_bh(&hwsim_radio_lock); |
acc1e7a3 | 1834 | |
de0421d5 JB |
1835 | if (channels > 1) |
1836 | ops = &mac80211_hwsim_mchan_ops; | |
1837 | hw = ieee80211_alloc_hw(sizeof(*data), ops); | |
1838 | if (!hw) { | |
1839 | printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw failed\n"); | |
1840 | err = -ENOMEM; | |
1841 | goto failed; | |
1842 | } | |
1843 | data = hw->priv; | |
1844 | data->hw = hw; | |
acc1e7a3 | 1845 | |
de0421d5 JB |
1846 | data->dev = device_create(hwsim_class, NULL, 0, hw, "hwsim%d", idx); |
1847 | if (IS_ERR(data->dev)) { | |
1848 | printk(KERN_DEBUG | |
1849 | "mac80211_hwsim: device_create failed (%ld)\n", | |
1850 | PTR_ERR(data->dev)); | |
1851 | err = -ENOMEM; | |
1852 | goto failed_drvdata; | |
1853 | } | |
1854 | data->dev->driver = &mac80211_hwsim_driver.driver; | |
1855 | err = device_bind_driver(data->dev); | |
1856 | if (err != 0) { | |
1857 | printk(KERN_DEBUG "mac80211_hwsim: device_bind_driver failed (%d)\n", | |
1858 | err); | |
1859 | goto failed_hw; | |
1860 | } | |
acc1e7a3 | 1861 | |
de0421d5 | 1862 | skb_queue_head_init(&data->pending); |
acc1e7a3 | 1863 | |
de0421d5 JB |
1864 | SET_IEEE80211_DEV(hw, data->dev); |
1865 | memset(addr, 0, ETH_ALEN); | |
1866 | addr[0] = 0x02; | |
1867 | addr[3] = idx >> 8; | |
1868 | addr[4] = idx; | |
1869 | memcpy(data->addresses[0].addr, addr, ETH_ALEN); | |
1870 | memcpy(data->addresses[1].addr, addr, ETH_ALEN); | |
1871 | data->addresses[1].addr[0] |= 0x40; | |
1872 | hw->wiphy->n_addresses = 2; | |
1873 | hw->wiphy->addresses = data->addresses; | |
fc6971d4 | 1874 | |
de0421d5 | 1875 | data->channels = channels; |
fc6971d4 | 1876 | |
de0421d5 JB |
1877 | if (data->channels > 1) { |
1878 | hw->wiphy->max_scan_ssids = 255; | |
1879 | hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN; | |
1880 | hw->wiphy->max_remain_on_channel_duration = 1000; | |
1881 | /* For channels > 1 DFS is not allowed */ | |
1882 | hw->wiphy->n_iface_combinations = 1; | |
1883 | hw->wiphy->iface_combinations = &data->if_combination; | |
1884 | data->if_combination = hwsim_if_comb[0]; | |
1885 | data->if_combination.num_different_channels = data->channels; | |
1886 | } else { | |
1887 | hw->wiphy->iface_combinations = hwsim_if_comb; | |
1888 | hw->wiphy->n_iface_combinations = ARRAY_SIZE(hwsim_if_comb); | |
1889 | } | |
fc6971d4 | 1890 | |
de0421d5 JB |
1891 | INIT_DELAYED_WORK(&data->roc_done, hw_roc_done); |
1892 | INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work); | |
7882513b | 1893 | |
de0421d5 JB |
1894 | hw->queues = 5; |
1895 | hw->offchannel_tx_hw_queue = 4; | |
1896 | hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | | |
1897 | BIT(NL80211_IFTYPE_AP) | | |
1898 | BIT(NL80211_IFTYPE_P2P_CLIENT) | | |
1899 | BIT(NL80211_IFTYPE_P2P_GO) | | |
1900 | BIT(NL80211_IFTYPE_ADHOC) | | |
1901 | BIT(NL80211_IFTYPE_MESH_POINT) | | |
1902 | BIT(NL80211_IFTYPE_P2P_DEVICE); | |
fc6971d4 | 1903 | |
de0421d5 JB |
1904 | hw->flags = IEEE80211_HW_MFP_CAPABLE | |
1905 | IEEE80211_HW_SIGNAL_DBM | | |
1906 | IEEE80211_HW_SUPPORTS_STATIC_SMPS | | |
1907 | IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS | | |
1908 | IEEE80211_HW_AMPDU_AGGREGATION | | |
1909 | IEEE80211_HW_WANT_MONITOR_VIF | | |
1910 | IEEE80211_HW_QUEUE_CONTROL | | |
1911 | IEEE80211_HW_SUPPORTS_HT_CCK_RATES; | |
1912 | if (rctbl) | |
1913 | hw->flags |= IEEE80211_HW_SUPPORTS_RC_TABLE; | |
fc6971d4 | 1914 | |
de0421d5 JB |
1915 | hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS | |
1916 | WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL | | |
1917 | WIPHY_FLAG_AP_UAPSD; | |
1918 | hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR; | |
fc6971d4 | 1919 | |
de0421d5 JB |
1920 | /* ask mac80211 to reserve space for magic */ |
1921 | hw->vif_data_size = sizeof(struct hwsim_vif_priv); | |
1922 | hw->sta_data_size = sizeof(struct hwsim_sta_priv); | |
1923 | hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv); | |
fc6971d4 | 1924 | |
de0421d5 JB |
1925 | memcpy(data->channels_2ghz, hwsim_channels_2ghz, |
1926 | sizeof(hwsim_channels_2ghz)); | |
1927 | memcpy(data->channels_5ghz, hwsim_channels_5ghz, | |
1928 | sizeof(hwsim_channels_5ghz)); | |
1929 | memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates)); | |
7882513b | 1930 | |
de0421d5 JB |
1931 | for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) { |
1932 | struct ieee80211_supported_band *sband = &data->bands[band]; | |
1933 | switch (band) { | |
1934 | case IEEE80211_BAND_2GHZ: | |
1935 | sband->channels = data->channels_2ghz; | |
1936 | sband->n_channels = ARRAY_SIZE(hwsim_channels_2ghz); | |
1937 | sband->bitrates = data->rates; | |
1938 | sband->n_bitrates = ARRAY_SIZE(hwsim_rates); | |
1939 | break; | |
1940 | case IEEE80211_BAND_5GHZ: | |
1941 | sband->channels = data->channels_5ghz; | |
1942 | sband->n_channels = ARRAY_SIZE(hwsim_channels_5ghz); | |
1943 | sband->bitrates = data->rates + 4; | |
1944 | sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4; | |
1945 | break; | |
1946 | default: | |
1947 | continue; | |
1948 | } | |
fc6971d4 | 1949 | |
de0421d5 JB |
1950 | sband->ht_cap.ht_supported = true; |
1951 | sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 | | |
1952 | IEEE80211_HT_CAP_GRN_FLD | | |
1953 | IEEE80211_HT_CAP_SGI_40 | | |
1954 | IEEE80211_HT_CAP_DSSSCCK40; | |
1955 | sband->ht_cap.ampdu_factor = 0x3; | |
1956 | sband->ht_cap.ampdu_density = 0x6; | |
1957 | memset(&sband->ht_cap.mcs, 0, | |
1958 | sizeof(sband->ht_cap.mcs)); | |
1959 | sband->ht_cap.mcs.rx_mask[0] = 0xff; | |
1960 | sband->ht_cap.mcs.rx_mask[1] = 0xff; | |
1961 | sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; | |
fc6971d4 | 1962 | |
de0421d5 | 1963 | hw->wiphy->bands[band] = sband; |
fc6971d4 | 1964 | |
de0421d5 JB |
1965 | sband->vht_cap.vht_supported = true; |
1966 | sband->vht_cap.cap = | |
1967 | IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 | | |
1968 | IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ | | |
1969 | IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ | | |
1970 | IEEE80211_VHT_CAP_RXLDPC | | |
1971 | IEEE80211_VHT_CAP_SHORT_GI_80 | | |
1972 | IEEE80211_VHT_CAP_SHORT_GI_160 | | |
1973 | IEEE80211_VHT_CAP_TXSTBC | | |
1974 | IEEE80211_VHT_CAP_RXSTBC_1 | | |
1975 | IEEE80211_VHT_CAP_RXSTBC_2 | | |
1976 | IEEE80211_VHT_CAP_RXSTBC_3 | | |
1977 | IEEE80211_VHT_CAP_RXSTBC_4 | | |
1978 | IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK; | |
1979 | sband->vht_cap.vht_mcs.rx_mcs_map = | |
1980 | cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_8 << 0 | | |
1981 | IEEE80211_VHT_MCS_SUPPORT_0_8 << 2 | | |
1982 | IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 | | |
1983 | IEEE80211_VHT_MCS_SUPPORT_0_8 << 6 | | |
1984 | IEEE80211_VHT_MCS_SUPPORT_0_8 << 8 | | |
1985 | IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 | | |
1986 | IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 | | |
1987 | IEEE80211_VHT_MCS_SUPPORT_0_8 << 14); | |
1988 | sband->vht_cap.vht_mcs.tx_mcs_map = | |
1989 | sband->vht_cap.vht_mcs.rx_mcs_map; | |
1990 | } | |
fc6971d4 | 1991 | |
de0421d5 JB |
1992 | /* By default all radios belong to the first group */ |
1993 | data->group = 1; | |
1994 | mutex_init(&data->mutex); | |
fc6971d4 | 1995 | |
de0421d5 JB |
1996 | /* Enable frame retransmissions for lossy channels */ |
1997 | hw->max_rates = 4; | |
1998 | hw->max_rate_tries = 11; | |
fc6971d4 | 1999 | |
de0421d5 JB |
2000 | err = ieee80211_register_hw(hw); |
2001 | if (err < 0) { | |
2002 | printk(KERN_DEBUG "mac80211_hwsim: ieee80211_register_hw failed (%d)\n", | |
2003 | err); | |
2004 | goto failed_hw; | |
2005 | } | |
fc6971d4 | 2006 | |
de0421d5 | 2007 | wiphy_debug(hw->wiphy, "hwaddr %pM registered\n", hw->wiphy->perm_addr); |
fc6971d4 | 2008 | |
de0421d5 JB |
2009 | data->debugfs = debugfs_create_dir("hwsim", hw->wiphy->debugfsdir); |
2010 | debugfs_create_file("ps", 0666, data->debugfs, data, &hwsim_fops_ps); | |
2011 | debugfs_create_file("group", 0666, data->debugfs, data, | |
2012 | &hwsim_fops_group); | |
2013 | if (data->channels == 1) | |
2014 | debugfs_create_file("dfs_simulate_radar", 0222, | |
2015 | data->debugfs, | |
2016 | data, &hwsim_simulate_radar); | |
fc6971d4 | 2017 | |
de0421d5 JB |
2018 | tasklet_hrtimer_init(&data->beacon_timer, |
2019 | mac80211_hwsim_beacon, | |
2020 | CLOCK_MONOTONIC_RAW, HRTIMER_MODE_ABS); | |
fc6971d4 | 2021 | |
de0421d5 JB |
2022 | spin_lock_bh(&hwsim_radio_lock); |
2023 | list_add_tail(&data->list, &hwsim_radios); | |
2024 | spin_unlock_bh(&hwsim_radio_lock); | |
fc6971d4 JM |
2025 | |
2026 | return 0; | |
fc6971d4 | 2027 | |
de0421d5 JB |
2028 | failed_hw: |
2029 | device_unregister(data->dev); | |
2030 | failed_drvdata: | |
2031 | ieee80211_free_hw(hw); | |
2032 | failed: | |
2033 | return err; | |
2034 | } | |
fc6971d4 | 2035 | |
de0421d5 | 2036 | static void mac80211_hwsim_destroy_radio(struct mac80211_hwsim_data *data) |
bba05e3d | 2037 | { |
de0421d5 JB |
2038 | debugfs_remove_recursive(data->debugfs); |
2039 | ieee80211_unregister_hw(data->hw); | |
2040 | device_release_driver(data->dev); | |
2041 | device_unregister(data->dev); | |
2042 | ieee80211_free_hw(data->hw); | |
bba05e3d JD |
2043 | } |
2044 | ||
de0421d5 | 2045 | static void mac80211_hwsim_free(void) |
73606d00 | 2046 | { |
de0421d5 JB |
2047 | struct mac80211_hwsim_data *data; |
2048 | ||
2049 | spin_lock_bh(&hwsim_radio_lock); | |
2050 | while ((data = list_first_entry_or_null(&hwsim_radios, | |
2051 | struct mac80211_hwsim_data, | |
2052 | list))) { | |
2053 | list_del(&data->list); | |
2054 | spin_unlock_bh(&hwsim_radio_lock); | |
2055 | mac80211_hwsim_destroy_radio(data); | |
2056 | spin_lock_bh(&hwsim_radio_lock); | |
2057 | } | |
2058 | spin_unlock_bh(&hwsim_radio_lock); | |
2059 | class_destroy(hwsim_class); | |
73606d00 DW |
2060 | } |
2061 | ||
de0421d5 JB |
2062 | static const struct net_device_ops hwsim_netdev_ops = { |
2063 | .ndo_start_xmit = hwsim_mon_xmit, | |
2064 | .ndo_change_mtu = eth_change_mtu, | |
2065 | .ndo_set_mac_address = eth_mac_addr, | |
2066 | .ndo_validate_addr = eth_validate_addr, | |
2067 | }; | |
2068 | ||
2069 | static void hwsim_mon_setup(struct net_device *dev) | |
73606d00 | 2070 | { |
de0421d5 JB |
2071 | dev->netdev_ops = &hwsim_netdev_ops; |
2072 | dev->destructor = free_netdev; | |
2073 | ether_setup(dev); | |
2074 | dev->tx_queue_len = 0; | |
2075 | dev->type = ARPHRD_IEEE80211_RADIOTAP; | |
2076 | memset(dev->dev_addr, 0, ETH_ALEN); | |
2077 | dev->dev_addr[0] = 0x12; | |
73606d00 DW |
2078 | } |
2079 | ||
9ddd12af | 2080 | static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(const u8 *addr) |
7882513b JL |
2081 | { |
2082 | struct mac80211_hwsim_data *data; | |
2083 | bool _found = false; | |
2084 | ||
2085 | spin_lock_bh(&hwsim_radio_lock); | |
2086 | list_for_each_entry(data, &hwsim_radios, list) { | |
9ddd12af | 2087 | if (memcmp(data->addresses[1].addr, addr, ETH_ALEN) == 0) { |
7882513b JL |
2088 | _found = true; |
2089 | break; | |
2090 | } | |
2091 | } | |
2092 | spin_unlock_bh(&hwsim_radio_lock); | |
2093 | ||
2094 | if (!_found) | |
2095 | return NULL; | |
2096 | ||
2097 | return data; | |
2098 | } | |
2099 | ||
2100 | static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2, | |
2101 | struct genl_info *info) | |
2102 | { | |
2103 | ||
2104 | struct ieee80211_hdr *hdr; | |
2105 | struct mac80211_hwsim_data *data2; | |
2106 | struct ieee80211_tx_info *txi; | |
2107 | struct hwsim_tx_rate *tx_attempts; | |
d0f718c1 | 2108 | unsigned long ret_skb_ptr; |
7882513b | 2109 | struct sk_buff *skb, *tmp; |
9ddd12af | 2110 | const u8 *src; |
7882513b | 2111 | unsigned int hwsim_flags; |
7882513b JL |
2112 | int i; |
2113 | bool found = false; | |
2114 | ||
85ca8fc7 JB |
2115 | if (info->snd_portid != wmediumd_portid) |
2116 | return -EINVAL; | |
2117 | ||
7882513b | 2118 | if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] || |
9ddd12af JB |
2119 | !info->attrs[HWSIM_ATTR_FLAGS] || |
2120 | !info->attrs[HWSIM_ATTR_COOKIE] || | |
2121 | !info->attrs[HWSIM_ATTR_TX_INFO]) | |
7882513b JL |
2122 | goto out; |
2123 | ||
9ddd12af | 2124 | src = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]); |
7882513b | 2125 | hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]); |
d0f718c1 | 2126 | ret_skb_ptr = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]); |
7882513b JL |
2127 | |
2128 | data2 = get_hwsim_data_ref_from_addr(src); | |
9ddd12af | 2129 | if (!data2) |
7882513b JL |
2130 | goto out; |
2131 | ||
2132 | /* look for the skb matching the cookie passed back from user */ | |
2133 | skb_queue_walk_safe(&data2->pending, skb, tmp) { | |
d0f718c1 | 2134 | if ((unsigned long)skb == ret_skb_ptr) { |
7882513b JL |
2135 | skb_unlink(skb, &data2->pending); |
2136 | found = true; | |
2137 | break; | |
2138 | } | |
2139 | } | |
2140 | ||
2141 | /* not found */ | |
2142 | if (!found) | |
2143 | goto out; | |
2144 | ||
2145 | /* Tx info received because the frame was broadcasted on user space, | |
2146 | so we get all the necessary info: tx attempts and skb control buff */ | |
2147 | ||
2148 | tx_attempts = (struct hwsim_tx_rate *)nla_data( | |
2149 | info->attrs[HWSIM_ATTR_TX_INFO]); | |
2150 | ||
2151 | /* now send back TX status */ | |
2152 | txi = IEEE80211_SKB_CB(skb); | |
2153 | ||
7882513b JL |
2154 | ieee80211_tx_info_clear_status(txi); |
2155 | ||
2156 | for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) { | |
2157 | txi->status.rates[i].idx = tx_attempts[i].idx; | |
2158 | txi->status.rates[i].count = tx_attempts[i].count; | |
2159 | /*txi->status.rates[i].flags = 0;*/ | |
2160 | } | |
2161 | ||
2162 | txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]); | |
2163 | ||
2164 | if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) && | |
2165 | (hwsim_flags & HWSIM_TX_STAT_ACK)) { | |
2166 | if (skb->len >= 16) { | |
2167 | hdr = (struct ieee80211_hdr *) skb->data; | |
e8261171 JB |
2168 | mac80211_hwsim_monitor_ack(txi->rate_driver_data[0], |
2169 | hdr->addr2); | |
7882513b | 2170 | } |
06cf5c4c | 2171 | txi->flags |= IEEE80211_TX_STAT_ACK; |
7882513b JL |
2172 | } |
2173 | ieee80211_tx_status_irqsafe(data2->hw, skb); | |
2174 | return 0; | |
2175 | out: | |
2176 | return -EINVAL; | |
2177 | ||
2178 | } | |
2179 | ||
2180 | static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2, | |
2181 | struct genl_info *info) | |
2182 | { | |
2183 | ||
e8261171 | 2184 | struct mac80211_hwsim_data *data2; |
7882513b | 2185 | struct ieee80211_rx_status rx_status; |
9ddd12af | 2186 | const u8 *dst; |
7882513b | 2187 | int frame_data_len; |
9ddd12af | 2188 | void *frame_data; |
7882513b JL |
2189 | struct sk_buff *skb = NULL; |
2190 | ||
85ca8fc7 JB |
2191 | if (info->snd_portid != wmediumd_portid) |
2192 | return -EINVAL; | |
2193 | ||
7882513b | 2194 | if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] || |
e8261171 JB |
2195 | !info->attrs[HWSIM_ATTR_FRAME] || |
2196 | !info->attrs[HWSIM_ATTR_RX_RATE] || | |
2197 | !info->attrs[HWSIM_ATTR_SIGNAL]) | |
7882513b JL |
2198 | goto out; |
2199 | ||
9ddd12af | 2200 | dst = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_RECEIVER]); |
7882513b | 2201 | frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]); |
9ddd12af | 2202 | frame_data = (void *)nla_data(info->attrs[HWSIM_ATTR_FRAME]); |
7882513b JL |
2203 | |
2204 | /* Allocate new skb here */ | |
2205 | skb = alloc_skb(frame_data_len, GFP_KERNEL); | |
2206 | if (skb == NULL) | |
2207 | goto err; | |
2208 | ||
9ddd12af | 2209 | if (frame_data_len > IEEE80211_MAX_DATA_LEN) |
7882513b JL |
2210 | goto err; |
2211 | ||
9ddd12af JB |
2212 | /* Copy the data */ |
2213 | memcpy(skb_put(skb, frame_data_len), frame_data, frame_data_len); | |
7882513b | 2214 | |
9ddd12af JB |
2215 | data2 = get_hwsim_data_ref_from_addr(dst); |
2216 | if (!data2) | |
7882513b JL |
2217 | goto out; |
2218 | ||
2219 | /* check if radio is configured properly */ | |
2220 | ||
e8261171 | 2221 | if (data2->idle || !data2->started) |
7882513b JL |
2222 | goto out; |
2223 | ||
9ddd12af | 2224 | /* A frame is received from user space */ |
7882513b JL |
2225 | memset(&rx_status, 0, sizeof(rx_status)); |
2226 | rx_status.freq = data2->channel->center_freq; | |
2227 | rx_status.band = data2->channel->band; | |
2228 | rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]); | |
2229 | rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]); | |
2230 | ||
2231 | memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status)); | |
2232 | ieee80211_rx_irqsafe(data2->hw, skb); | |
2233 | ||
2234 | return 0; | |
2235 | err: | |
c393862f | 2236 | printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__); |
7882513b JL |
2237 | goto out; |
2238 | out: | |
2239 | dev_kfree_skb(skb); | |
2240 | return -EINVAL; | |
2241 | } | |
2242 | ||
2243 | static int hwsim_register_received_nl(struct sk_buff *skb_2, | |
2244 | struct genl_info *info) | |
2245 | { | |
c5ac0854 JB |
2246 | struct mac80211_hwsim_data *data; |
2247 | int chans = 1; | |
2248 | ||
2249 | spin_lock_bh(&hwsim_radio_lock); | |
2250 | list_for_each_entry(data, &hwsim_radios, list) | |
2251 | chans = max(chans, data->channels); | |
2252 | spin_unlock_bh(&hwsim_radio_lock); | |
2253 | ||
2254 | /* In the future we should revise the userspace API and allow it | |
2255 | * to set a flag that it does support multi-channel, then we can | |
2256 | * let this pass conditionally on the flag. | |
2257 | * For current userspace, prohibit it since it won't work right. | |
2258 | */ | |
2259 | if (chans > 1) | |
2260 | return -EOPNOTSUPP; | |
2261 | ||
85ca8fc7 JB |
2262 | if (wmediumd_portid) |
2263 | return -EBUSY; | |
2264 | ||
15e47304 | 2265 | wmediumd_portid = info->snd_portid; |
7882513b JL |
2266 | |
2267 | printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, " | |
15e47304 | 2268 | "switching to wmediumd mode with pid %d\n", info->snd_portid); |
7882513b JL |
2269 | |
2270 | return 0; | |
7882513b JL |
2271 | } |
2272 | ||
2273 | /* Generic Netlink operations array */ | |
4534de83 | 2274 | static const struct genl_ops hwsim_ops[] = { |
7882513b JL |
2275 | { |
2276 | .cmd = HWSIM_CMD_REGISTER, | |
2277 | .policy = hwsim_genl_policy, | |
2278 | .doit = hwsim_register_received_nl, | |
2279 | .flags = GENL_ADMIN_PERM, | |
2280 | }, | |
2281 | { | |
2282 | .cmd = HWSIM_CMD_FRAME, | |
2283 | .policy = hwsim_genl_policy, | |
2284 | .doit = hwsim_cloned_frame_received_nl, | |
2285 | }, | |
2286 | { | |
2287 | .cmd = HWSIM_CMD_TX_INFO_FRAME, | |
2288 | .policy = hwsim_genl_policy, | |
2289 | .doit = hwsim_tx_info_frame_received_nl, | |
2290 | }, | |
2291 | }; | |
2292 | ||
2293 | static int mac80211_hwsim_netlink_notify(struct notifier_block *nb, | |
2294 | unsigned long state, | |
2295 | void *_notify) | |
2296 | { | |
2297 | struct netlink_notify *notify = _notify; | |
2298 | ||
2299 | if (state != NETLINK_URELEASE) | |
2300 | return NOTIFY_DONE; | |
2301 | ||
15e47304 | 2302 | if (notify->portid == wmediumd_portid) { |
7882513b JL |
2303 | printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink" |
2304 | " socket, switching to perfect channel medium\n"); | |
15e47304 | 2305 | wmediumd_portid = 0; |
7882513b JL |
2306 | } |
2307 | return NOTIFY_DONE; | |
2308 | ||
2309 | } | |
2310 | ||
2311 | static struct notifier_block hwsim_netlink_notifier = { | |
2312 | .notifier_call = mac80211_hwsim_netlink_notify, | |
2313 | }; | |
2314 | ||
2315 | static int hwsim_init_netlink(void) | |
2316 | { | |
2317 | int rc; | |
e8261171 | 2318 | |
7882513b JL |
2319 | printk(KERN_INFO "mac80211_hwsim: initializing netlink\n"); |
2320 | ||
c53ed742 | 2321 | rc = genl_register_family_with_ops(&hwsim_genl_family, hwsim_ops); |
7882513b JL |
2322 | if (rc) |
2323 | goto failure; | |
2324 | ||
2325 | rc = netlink_register_notifier(&hwsim_netlink_notifier); | |
2326 | if (rc) | |
2327 | goto failure; | |
2328 | ||
2329 | return 0; | |
2330 | ||
2331 | failure: | |
c393862f | 2332 | printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__); |
7882513b JL |
2333 | return -EINVAL; |
2334 | } | |
2335 | ||
2336 | static void hwsim_exit_netlink(void) | |
2337 | { | |
7882513b JL |
2338 | /* unregister the notifier */ |
2339 | netlink_unregister_notifier(&hwsim_netlink_notifier); | |
2340 | /* unregister the family */ | |
cf7a6b2d | 2341 | genl_unregister_family(&hwsim_genl_family); |
7882513b JL |
2342 | } |
2343 | ||
f39c2bfa JB |
2344 | static int __init init_mac80211_hwsim(void) |
2345 | { | |
2346 | int i, err; | |
acc1e7a3 | 2347 | |
0e057d73 | 2348 | if (radios < 1 || radios > 100) |
acc1e7a3 JM |
2349 | return -EINVAL; |
2350 | ||
e8261171 JB |
2351 | if (channels < 1) |
2352 | return -EINVAL; | |
2353 | ||
38ed5048 JB |
2354 | mac80211_hwsim_mchan_ops = mac80211_hwsim_ops; |
2355 | mac80211_hwsim_mchan_ops.hw_scan = mac80211_hwsim_hw_scan; | |
2356 | mac80211_hwsim_mchan_ops.cancel_hw_scan = mac80211_hwsim_cancel_hw_scan; | |
2357 | mac80211_hwsim_mchan_ops.sw_scan_start = NULL; | |
2358 | mac80211_hwsim_mchan_ops.sw_scan_complete = NULL; | |
2359 | mac80211_hwsim_mchan_ops.remain_on_channel = mac80211_hwsim_roc; | |
2360 | mac80211_hwsim_mchan_ops.cancel_remain_on_channel = mac80211_hwsim_croc; | |
2361 | mac80211_hwsim_mchan_ops.add_chanctx = mac80211_hwsim_add_chanctx; | |
2362 | mac80211_hwsim_mchan_ops.remove_chanctx = mac80211_hwsim_remove_chanctx; | |
2363 | mac80211_hwsim_mchan_ops.change_chanctx = mac80211_hwsim_change_chanctx; | |
2364 | mac80211_hwsim_mchan_ops.assign_vif_chanctx = | |
2365 | mac80211_hwsim_assign_vif_chanctx; | |
2366 | mac80211_hwsim_mchan_ops.unassign_vif_chanctx = | |
2367 | mac80211_hwsim_unassign_vif_chanctx; | |
69068036 | 2368 | |
0e057d73 JB |
2369 | spin_lock_init(&hwsim_radio_lock); |
2370 | INIT_LIST_HEAD(&hwsim_radios); | |
acc1e7a3 | 2371 | |
c07fe5ae | 2372 | err = platform_driver_register(&mac80211_hwsim_driver); |
9ea92774 MP |
2373 | if (err) |
2374 | return err; | |
2375 | ||
acc1e7a3 | 2376 | hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim"); |
9ea92774 MP |
2377 | if (IS_ERR(hwsim_class)) { |
2378 | err = PTR_ERR(hwsim_class); | |
f39c2bfa | 2379 | goto out_unregister_driver; |
9ea92774 | 2380 | } |
acc1e7a3 | 2381 | |
0e057d73 | 2382 | for (i = 0; i < radios; i++) { |
2d68992b | 2383 | err = mac80211_hwsim_create_radio(); |
f39c2bfa JB |
2384 | if (err) |
2385 | goto out_free_radios; | |
acc1e7a3 JM |
2386 | } |
2387 | ||
2388 | hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup); | |
bcdd8220 WY |
2389 | if (hwsim_mon == NULL) { |
2390 | err = -ENOMEM; | |
f39c2bfa | 2391 | goto out_free_radios; |
bcdd8220 | 2392 | } |
acc1e7a3 | 2393 | |
7882513b | 2394 | rtnl_lock(); |
7882513b | 2395 | err = dev_alloc_name(hwsim_mon, hwsim_mon->name); |
f39c2bfa JB |
2396 | if (err < 0) { |
2397 | rtnl_unlock(); | |
2398 | goto out_free_radios; | |
2399 | } | |
7882513b JL |
2400 | |
2401 | err = register_netdevice(hwsim_mon); | |
f39c2bfa JB |
2402 | if (err < 0) { |
2403 | rtnl_unlock(); | |
2404 | goto out_free_mon; | |
2405 | } | |
7882513b JL |
2406 | rtnl_unlock(); |
2407 | ||
2408 | err = hwsim_init_netlink(); | |
2409 | if (err < 0) | |
f39c2bfa | 2410 | goto out_free_mon; |
7882513b | 2411 | |
acc1e7a3 JM |
2412 | return 0; |
2413 | ||
f39c2bfa | 2414 | out_free_mon: |
acc1e7a3 | 2415 | free_netdev(hwsim_mon); |
f39c2bfa | 2416 | out_free_radios: |
3a33cc10 | 2417 | mac80211_hwsim_free(); |
f39c2bfa | 2418 | out_unregister_driver: |
c07fe5ae | 2419 | platform_driver_unregister(&mac80211_hwsim_driver); |
acc1e7a3 JM |
2420 | return err; |
2421 | } | |
f8fffc7e | 2422 | module_init(init_mac80211_hwsim); |
acc1e7a3 JM |
2423 | |
2424 | static void __exit exit_mac80211_hwsim(void) | |
2425 | { | |
0e057d73 | 2426 | printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n"); |
acc1e7a3 | 2427 | |
7882513b JL |
2428 | hwsim_exit_netlink(); |
2429 | ||
acc1e7a3 | 2430 | mac80211_hwsim_free(); |
5d416351 | 2431 | unregister_netdev(hwsim_mon); |
c07fe5ae | 2432 | platform_driver_unregister(&mac80211_hwsim_driver); |
acc1e7a3 | 2433 | } |
acc1e7a3 | 2434 | module_exit(exit_mac80211_hwsim); |