Commit | Line | Data |
---|---|---|
ff9fc791 HS |
1 | /* |
2 | * Implement cfg80211 ("iw") support. | |
3 | * | |
4 | * Copyright (C) 2009 M&N Solutions GmbH, 61191 Rosbach, Germany | |
5 | * Holger Schurig <hs4233@mail.mn-solutions.de> | |
6 | * | |
7 | */ | |
8 | ||
0e4e06ae JP |
9 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
10 | ||
a6b7a407 | 11 | #include <linux/hardirq.h> |
241a6a54 AM |
12 | #include <linux/sched.h> |
13 | #include <linux/wait.h> | |
5a0e3ad6 | 14 | #include <linux/slab.h> |
1047d5ed | 15 | #include <linux/ieee80211.h> |
ff9fc791 | 16 | #include <net/cfg80211.h> |
e86dc1ca | 17 | #include <asm/unaligned.h> |
ff9fc791 | 18 | |
e86dc1ca | 19 | #include "decl.h" |
ff9fc791 HS |
20 | #include "cfg.h" |
21 | #include "cmd.h" | |
49fee692 | 22 | #include "mesh.h" |
ff9fc791 HS |
23 | |
24 | ||
25 | #define CHAN2G(_channel, _freq, _flags) { \ | |
26 | .band = IEEE80211_BAND_2GHZ, \ | |
27 | .center_freq = (_freq), \ | |
28 | .hw_value = (_channel), \ | |
29 | .flags = (_flags), \ | |
30 | .max_antenna_gain = 0, \ | |
31 | .max_power = 30, \ | |
32 | } | |
33 | ||
34 | static struct ieee80211_channel lbs_2ghz_channels[] = { | |
35 | CHAN2G(1, 2412, 0), | |
36 | CHAN2G(2, 2417, 0), | |
37 | CHAN2G(3, 2422, 0), | |
38 | CHAN2G(4, 2427, 0), | |
39 | CHAN2G(5, 2432, 0), | |
40 | CHAN2G(6, 2437, 0), | |
41 | CHAN2G(7, 2442, 0), | |
42 | CHAN2G(8, 2447, 0), | |
43 | CHAN2G(9, 2452, 0), | |
44 | CHAN2G(10, 2457, 0), | |
45 | CHAN2G(11, 2462, 0), | |
46 | CHAN2G(12, 2467, 0), | |
47 | CHAN2G(13, 2472, 0), | |
48 | CHAN2G(14, 2484, 0), | |
49 | }; | |
50 | ||
e86dc1ca KD |
51 | #define RATETAB_ENT(_rate, _hw_value, _flags) { \ |
52 | .bitrate = (_rate), \ | |
53 | .hw_value = (_hw_value), \ | |
54 | .flags = (_flags), \ | |
ff9fc791 HS |
55 | } |
56 | ||
57 | ||
e86dc1ca | 58 | /* Table 6 in section 3.2.1.1 */ |
ff9fc791 | 59 | static struct ieee80211_rate lbs_rates[] = { |
e86dc1ca KD |
60 | RATETAB_ENT(10, 0, 0), |
61 | RATETAB_ENT(20, 1, 0), | |
62 | RATETAB_ENT(55, 2, 0), | |
63 | RATETAB_ENT(110, 3, 0), | |
64 | RATETAB_ENT(60, 9, 0), | |
65 | RATETAB_ENT(90, 6, 0), | |
66 | RATETAB_ENT(120, 7, 0), | |
67 | RATETAB_ENT(180, 8, 0), | |
68 | RATETAB_ENT(240, 9, 0), | |
69 | RATETAB_ENT(360, 10, 0), | |
70 | RATETAB_ENT(480, 11, 0), | |
71 | RATETAB_ENT(540, 12, 0), | |
ff9fc791 HS |
72 | }; |
73 | ||
74 | static struct ieee80211_supported_band lbs_band_2ghz = { | |
75 | .channels = lbs_2ghz_channels, | |
76 | .n_channels = ARRAY_SIZE(lbs_2ghz_channels), | |
77 | .bitrates = lbs_rates, | |
78 | .n_bitrates = ARRAY_SIZE(lbs_rates), | |
79 | }; | |
80 | ||
81 | ||
82 | static const u32 cipher_suites[] = { | |
83 | WLAN_CIPHER_SUITE_WEP40, | |
84 | WLAN_CIPHER_SUITE_WEP104, | |
85 | WLAN_CIPHER_SUITE_TKIP, | |
86 | WLAN_CIPHER_SUITE_CCMP, | |
87 | }; | |
88 | ||
e86dc1ca KD |
89 | /* Time to stay on the channel */ |
90 | #define LBS_DWELL_PASSIVE 100 | |
91 | #define LBS_DWELL_ACTIVE 40 | |
ff9fc791 HS |
92 | |
93 | ||
e86dc1ca KD |
94 | /*************************************************************************** |
95 | * Misc utility functions | |
96 | * | |
97 | * TLVs are Marvell specific. They are very similar to IEs, they have the | |
98 | * same structure: type, length, data*. The only difference: for IEs, the | |
99 | * type and length are u8, but for TLVs they're __le16. | |
100 | */ | |
101 | ||
102 | /* | |
103 | * Convert NL80211's auth_type to the one from Libertas, see chapter 5.9.1 | |
104 | * in the firmware spec | |
105 | */ | |
effcc625 | 106 | static int lbs_auth_to_authtype(enum nl80211_auth_type auth_type) |
e86dc1ca KD |
107 | { |
108 | int ret = -ENOTSUPP; | |
109 | ||
110 | switch (auth_type) { | |
111 | case NL80211_AUTHTYPE_OPEN_SYSTEM: | |
112 | case NL80211_AUTHTYPE_SHARED_KEY: | |
113 | ret = auth_type; | |
114 | break; | |
115 | case NL80211_AUTHTYPE_AUTOMATIC: | |
116 | ret = NL80211_AUTHTYPE_OPEN_SYSTEM; | |
117 | break; | |
118 | case NL80211_AUTHTYPE_NETWORK_EAP: | |
119 | ret = 0x80; | |
120 | break; | |
121 | default: | |
122 | /* silence compiler */ | |
123 | break; | |
124 | } | |
125 | return ret; | |
126 | } | |
127 | ||
128 | ||
8973a6e7 RD |
129 | /* |
130 | * Various firmware commands need the list of supported rates, but with | |
131 | * the hight-bit set for basic rates | |
132 | */ | |
e86dc1ca KD |
133 | static int lbs_add_rates(u8 *rates) |
134 | { | |
135 | size_t i; | |
136 | ||
137 | for (i = 0; i < ARRAY_SIZE(lbs_rates); i++) { | |
138 | u8 rate = lbs_rates[i].bitrate / 5; | |
139 | if (rate == 0x02 || rate == 0x04 || | |
140 | rate == 0x0b || rate == 0x16) | |
141 | rate |= 0x80; | |
142 | rates[i] = rate; | |
143 | } | |
144 | return ARRAY_SIZE(lbs_rates); | |
145 | } | |
146 | ||
147 | ||
148 | /*************************************************************************** | |
149 | * TLV utility functions | |
150 | * | |
151 | * TLVs are Marvell specific. They are very similar to IEs, they have the | |
152 | * same structure: type, length, data*. The only difference: for IEs, the | |
153 | * type and length are u8, but for TLVs they're __le16. | |
154 | */ | |
155 | ||
156 | ||
157 | /* | |
158 | * Add ssid TLV | |
159 | */ | |
160 | #define LBS_MAX_SSID_TLV_SIZE \ | |
161 | (sizeof(struct mrvl_ie_header) \ | |
162 | + IEEE80211_MAX_SSID_LEN) | |
163 | ||
164 | static int lbs_add_ssid_tlv(u8 *tlv, const u8 *ssid, int ssid_len) | |
165 | { | |
166 | struct mrvl_ie_ssid_param_set *ssid_tlv = (void *)tlv; | |
167 | ||
168 | /* | |
169 | * TLV-ID SSID 00 00 | |
170 | * length 06 00 | |
171 | * ssid 4d 4e 54 45 53 54 | |
172 | */ | |
173 | ssid_tlv->header.type = cpu_to_le16(TLV_TYPE_SSID); | |
174 | ssid_tlv->header.len = cpu_to_le16(ssid_len); | |
175 | memcpy(ssid_tlv->ssid, ssid, ssid_len); | |
176 | return sizeof(ssid_tlv->header) + ssid_len; | |
177 | } | |
178 | ||
179 | ||
180 | /* | |
181 | * Add channel list TLV (section 8.4.2) | |
182 | * | |
183 | * Actual channel data comes from priv->wdev->wiphy->channels. | |
184 | */ | |
185 | #define LBS_MAX_CHANNEL_LIST_TLV_SIZE \ | |
186 | (sizeof(struct mrvl_ie_header) \ | |
187 | + (LBS_SCAN_BEFORE_NAP * sizeof(struct chanscanparamset))) | |
188 | ||
189 | static int lbs_add_channel_list_tlv(struct lbs_private *priv, u8 *tlv, | |
190 | int last_channel, int active_scan) | |
191 | { | |
192 | int chanscanparamsize = sizeof(struct chanscanparamset) * | |
193 | (last_channel - priv->scan_channel); | |
194 | ||
195 | struct mrvl_ie_header *header = (void *) tlv; | |
196 | ||
197 | /* | |
198 | * TLV-ID CHANLIST 01 01 | |
199 | * length 0e 00 | |
200 | * channel 00 01 00 00 00 64 00 | |
201 | * radio type 00 | |
202 | * channel 01 | |
203 | * scan type 00 | |
204 | * min scan time 00 00 | |
205 | * max scan time 64 00 | |
206 | * channel 2 00 02 00 00 00 64 00 | |
207 | * | |
208 | */ | |
209 | ||
210 | header->type = cpu_to_le16(TLV_TYPE_CHANLIST); | |
211 | header->len = cpu_to_le16(chanscanparamsize); | |
212 | tlv += sizeof(struct mrvl_ie_header); | |
213 | ||
214 | /* lbs_deb_scan("scan: channels %d to %d\n", priv->scan_channel, | |
215 | last_channel); */ | |
216 | memset(tlv, 0, chanscanparamsize); | |
217 | ||
218 | while (priv->scan_channel < last_channel) { | |
219 | struct chanscanparamset *param = (void *) tlv; | |
220 | ||
221 | param->radiotype = CMD_SCAN_RADIO_TYPE_BG; | |
222 | param->channumber = | |
223 | priv->scan_req->channels[priv->scan_channel]->hw_value; | |
224 | if (active_scan) { | |
225 | param->maxscantime = cpu_to_le16(LBS_DWELL_ACTIVE); | |
226 | } else { | |
227 | param->chanscanmode.passivescan = 1; | |
228 | param->maxscantime = cpu_to_le16(LBS_DWELL_PASSIVE); | |
229 | } | |
230 | tlv += sizeof(struct chanscanparamset); | |
231 | priv->scan_channel++; | |
232 | } | |
233 | return sizeof(struct mrvl_ie_header) + chanscanparamsize; | |
234 | } | |
235 | ||
236 | ||
237 | /* | |
238 | * Add rates TLV | |
239 | * | |
240 | * The rates are in lbs_bg_rates[], but for the 802.11b | |
241 | * rates the high bit is set. We add this TLV only because | |
242 | * there's a firmware which otherwise doesn't report all | |
243 | * APs in range. | |
244 | */ | |
245 | #define LBS_MAX_RATES_TLV_SIZE \ | |
246 | (sizeof(struct mrvl_ie_header) \ | |
247 | + (ARRAY_SIZE(lbs_rates))) | |
248 | ||
249 | /* Adds a TLV with all rates the hardware supports */ | |
250 | static int lbs_add_supported_rates_tlv(u8 *tlv) | |
251 | { | |
252 | size_t i; | |
253 | struct mrvl_ie_rates_param_set *rate_tlv = (void *)tlv; | |
254 | ||
255 | /* | |
256 | * TLV-ID RATES 01 00 | |
257 | * length 0e 00 | |
258 | * rates 82 84 8b 96 0c 12 18 24 30 48 60 6c | |
259 | */ | |
260 | rate_tlv->header.type = cpu_to_le16(TLV_TYPE_RATES); | |
261 | tlv += sizeof(rate_tlv->header); | |
262 | i = lbs_add_rates(tlv); | |
263 | tlv += i; | |
264 | rate_tlv->header.len = cpu_to_le16(i); | |
265 | return sizeof(rate_tlv->header) + i; | |
266 | } | |
267 | ||
19757539 DW |
268 | /* Add common rates from a TLV and return the new end of the TLV */ |
269 | static u8 * | |
270 | add_ie_rates(u8 *tlv, const u8 *ie, int *nrates) | |
271 | { | |
272 | int hw, ap, ap_max = ie[1]; | |
273 | u8 hw_rate; | |
274 | ||
275 | /* Advance past IE header */ | |
276 | ie += 2; | |
277 | ||
278 | lbs_deb_hex(LBS_DEB_ASSOC, "AP IE Rates", (u8 *) ie, ap_max); | |
279 | ||
280 | for (hw = 0; hw < ARRAY_SIZE(lbs_rates); hw++) { | |
281 | hw_rate = lbs_rates[hw].bitrate / 5; | |
282 | for (ap = 0; ap < ap_max; ap++) { | |
283 | if (hw_rate == (ie[ap] & 0x7f)) { | |
284 | *tlv++ = ie[ap]; | |
285 | *nrates = *nrates + 1; | |
286 | } | |
287 | } | |
288 | } | |
289 | return tlv; | |
290 | } | |
e86dc1ca KD |
291 | |
292 | /* | |
293 | * Adds a TLV with all rates the hardware *and* BSS supports. | |
294 | */ | |
295 | static int lbs_add_common_rates_tlv(u8 *tlv, struct cfg80211_bss *bss) | |
296 | { | |
297 | struct mrvl_ie_rates_param_set *rate_tlv = (void *)tlv; | |
19757539 DW |
298 | const u8 *rates_eid, *ext_rates_eid; |
299 | int n = 0; | |
300 | ||
301 | rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SUPP_RATES); | |
302 | ext_rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_EXT_SUPP_RATES); | |
e86dc1ca KD |
303 | |
304 | /* | |
305 | * 01 00 TLV_TYPE_RATES | |
306 | * 04 00 len | |
307 | * 82 84 8b 96 rates | |
308 | */ | |
309 | rate_tlv->header.type = cpu_to_le16(TLV_TYPE_RATES); | |
310 | tlv += sizeof(rate_tlv->header); | |
311 | ||
19757539 DW |
312 | /* Add basic rates */ |
313 | if (rates_eid) { | |
314 | tlv = add_ie_rates(tlv, rates_eid, &n); | |
315 | ||
316 | /* Add extended rates, if any */ | |
317 | if (ext_rates_eid) | |
318 | tlv = add_ie_rates(tlv, ext_rates_eid, &n); | |
319 | } else { | |
320 | lbs_deb_assoc("assoc: bss had no basic rate IE\n"); | |
e86dc1ca KD |
321 | /* Fallback: add basic 802.11b rates */ |
322 | *tlv++ = 0x82; | |
323 | *tlv++ = 0x84; | |
324 | *tlv++ = 0x8b; | |
325 | *tlv++ = 0x96; | |
326 | n = 4; | |
e86dc1ca KD |
327 | } |
328 | ||
329 | rate_tlv->header.len = cpu_to_le16(n); | |
330 | return sizeof(rate_tlv->header) + n; | |
331 | } | |
332 | ||
333 | ||
334 | /* | |
335 | * Add auth type TLV. | |
336 | * | |
337 | * This is only needed for newer firmware (V9 and up). | |
338 | */ | |
339 | #define LBS_MAX_AUTH_TYPE_TLV_SIZE \ | |
340 | sizeof(struct mrvl_ie_auth_type) | |
341 | ||
342 | static int lbs_add_auth_type_tlv(u8 *tlv, enum nl80211_auth_type auth_type) | |
343 | { | |
344 | struct mrvl_ie_auth_type *auth = (void *) tlv; | |
345 | ||
346 | /* | |
347 | * 1f 01 TLV_TYPE_AUTH_TYPE | |
348 | * 01 00 len | |
349 | * 01 auth type | |
350 | */ | |
351 | auth->header.type = cpu_to_le16(TLV_TYPE_AUTH_TYPE); | |
352 | auth->header.len = cpu_to_le16(sizeof(*auth)-sizeof(auth->header)); | |
353 | auth->auth = cpu_to_le16(lbs_auth_to_authtype(auth_type)); | |
354 | return sizeof(*auth); | |
355 | } | |
356 | ||
357 | ||
358 | /* | |
359 | * Add channel (phy ds) TLV | |
360 | */ | |
361 | #define LBS_MAX_CHANNEL_TLV_SIZE \ | |
362 | sizeof(struct mrvl_ie_header) | |
363 | ||
364 | static int lbs_add_channel_tlv(u8 *tlv, u8 channel) | |
365 | { | |
366 | struct mrvl_ie_ds_param_set *ds = (void *) tlv; | |
367 | ||
368 | /* | |
369 | * 03 00 TLV_TYPE_PHY_DS | |
370 | * 01 00 len | |
371 | * 06 channel | |
372 | */ | |
373 | ds->header.type = cpu_to_le16(TLV_TYPE_PHY_DS); | |
374 | ds->header.len = cpu_to_le16(sizeof(*ds)-sizeof(ds->header)); | |
375 | ds->channel = channel; | |
376 | return sizeof(*ds); | |
377 | } | |
378 | ||
379 | ||
380 | /* | |
381 | * Add (empty) CF param TLV of the form: | |
382 | */ | |
383 | #define LBS_MAX_CF_PARAM_TLV_SIZE \ | |
384 | sizeof(struct mrvl_ie_header) | |
385 | ||
386 | static int lbs_add_cf_param_tlv(u8 *tlv) | |
387 | { | |
388 | struct mrvl_ie_cf_param_set *cf = (void *)tlv; | |
389 | ||
390 | /* | |
391 | * 04 00 TLV_TYPE_CF | |
392 | * 06 00 len | |
393 | * 00 cfpcnt | |
394 | * 00 cfpperiod | |
395 | * 00 00 cfpmaxduration | |
396 | * 00 00 cfpdurationremaining | |
397 | */ | |
398 | cf->header.type = cpu_to_le16(TLV_TYPE_CF); | |
399 | cf->header.len = cpu_to_le16(sizeof(*cf)-sizeof(cf->header)); | |
400 | return sizeof(*cf); | |
401 | } | |
402 | ||
403 | /* | |
404 | * Add WPA TLV | |
405 | */ | |
406 | #define LBS_MAX_WPA_TLV_SIZE \ | |
407 | (sizeof(struct mrvl_ie_header) \ | |
408 | + 128 /* TODO: I guessed the size */) | |
409 | ||
410 | static int lbs_add_wpa_tlv(u8 *tlv, const u8 *ie, u8 ie_len) | |
411 | { | |
412 | size_t tlv_len; | |
413 | ||
414 | /* | |
415 | * We need just convert an IE to an TLV. IEs use u8 for the header, | |
416 | * u8 type | |
417 | * u8 len | |
418 | * u8[] data | |
419 | * but TLVs use __le16 instead: | |
420 | * __le16 type | |
421 | * __le16 len | |
422 | * u8[] data | |
423 | */ | |
424 | *tlv++ = *ie++; | |
425 | *tlv++ = 0; | |
426 | tlv_len = *tlv++ = *ie++; | |
427 | *tlv++ = 0; | |
428 | while (tlv_len--) | |
429 | *tlv++ = *ie++; | |
430 | /* the TLV is two bytes larger than the IE */ | |
431 | return ie_len + 2; | |
432 | } | |
433 | ||
8973a6e7 | 434 | /* |
e86dc1ca KD |
435 | * Set Channel |
436 | */ | |
437 | ||
e8c9bd5b JB |
438 | static int lbs_cfg_set_monitor_channel(struct wiphy *wiphy, |
439 | struct ieee80211_channel *channel, | |
440 | enum nl80211_channel_type channel_type) | |
ff9fc791 HS |
441 | { |
442 | struct lbs_private *priv = wiphy_priv(wiphy); | |
e86dc1ca KD |
443 | int ret = -ENOTSUPP; |
444 | ||
e8c9bd5b JB |
445 | lbs_deb_enter_args(LBS_DEB_CFG80211, "freq %d, type %d", |
446 | channel->center_freq, channel_type); | |
e86dc1ca KD |
447 | |
448 | if (channel_type != NL80211_CHAN_NO_HT) | |
449 | goto out; | |
450 | ||
e8c9bd5b JB |
451 | ret = lbs_set_channel(priv, channel->hw_value); |
452 | ||
453 | out: | |
454 | lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); | |
455 | return ret; | |
456 | } | |
457 | ||
458 | static int lbs_cfg_set_mesh_channel(struct wiphy *wiphy, | |
459 | struct net_device *netdev, | |
460 | struct ieee80211_channel *channel) | |
461 | { | |
462 | struct lbs_private *priv = wiphy_priv(wiphy); | |
463 | int ret = -ENOTSUPP; | |
464 | ||
465 | lbs_deb_enter_args(LBS_DEB_CFG80211, "iface %s freq %d", | |
466 | netdev_name(netdev), channel->center_freq); | |
467 | ||
468 | if (netdev != priv->mesh_dev) | |
469 | goto out; | |
470 | ||
471 | ret = lbs_mesh_set_channel(priv, channel->hw_value); | |
e86dc1ca KD |
472 | |
473 | out: | |
474 | lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); | |
475 | return ret; | |
476 | } | |
477 | ||
478 | ||
479 | ||
8973a6e7 | 480 | /* |
e86dc1ca KD |
481 | * Scanning |
482 | */ | |
483 | ||
484 | /* | |
485 | * When scanning, the firmware doesn't send a nul packet with the power-safe | |
486 | * bit to the AP. So we cannot stay away from our current channel too long, | |
487 | * otherwise we loose data. So take a "nap" while scanning every other | |
488 | * while. | |
489 | */ | |
490 | #define LBS_SCAN_BEFORE_NAP 4 | |
491 | ||
492 | ||
493 | /* | |
494 | * When the firmware reports back a scan-result, it gives us an "u8 rssi", | |
495 | * which isn't really an RSSI, as it becomes larger when moving away from | |
496 | * the AP. Anyway, we need to convert that into mBm. | |
497 | */ | |
498 | #define LBS_SCAN_RSSI_TO_MBM(rssi) \ | |
499 | ((-(int)rssi + 3)*100) | |
500 | ||
501 | static int lbs_ret_scan(struct lbs_private *priv, unsigned long dummy, | |
502 | struct cmd_header *resp) | |
503 | { | |
731f8e1c | 504 | struct cfg80211_bss *bss; |
e86dc1ca KD |
505 | struct cmd_ds_802_11_scan_rsp *scanresp = (void *)resp; |
506 | int bsssize; | |
507 | const u8 *pos; | |
e86dc1ca KD |
508 | const u8 *tsfdesc; |
509 | int tsfsize; | |
510 | int i; | |
511 | int ret = -EILSEQ; | |
512 | ||
513 | lbs_deb_enter(LBS_DEB_CFG80211); | |
514 | ||
515 | bsssize = get_unaligned_le16(&scanresp->bssdescriptsize); | |
aebb628f DW |
516 | |
517 | lbs_deb_scan("scan response: %d BSSs (%d bytes); resp size %d bytes\n", | |
65a602dd | 518 | scanresp->nr_sets, bsssize, le16_to_cpu(resp->size)); |
aebb628f | 519 | |
65a602dd | 520 | if (scanresp->nr_sets == 0) { |
aebb628f DW |
521 | ret = 0; |
522 | goto done; | |
523 | } | |
e86dc1ca KD |
524 | |
525 | /* | |
526 | * The general layout of the scan response is described in chapter | |
527 | * 5.7.1. Basically we have a common part, then any number of BSS | |
528 | * descriptor sections. Finally we have section with the same number | |
529 | * of TSFs. | |
530 | * | |
531 | * cmd_ds_802_11_scan_rsp | |
532 | * cmd_header | |
533 | * pos_size | |
534 | * nr_sets | |
535 | * bssdesc 1 | |
536 | * bssid | |
537 | * rssi | |
538 | * timestamp | |
539 | * intvl | |
540 | * capa | |
541 | * IEs | |
542 | * bssdesc 2 | |
543 | * bssdesc n | |
544 | * MrvlIEtypes_TsfFimestamp_t | |
545 | * TSF for BSS 1 | |
546 | * TSF for BSS 2 | |
547 | * TSF for BSS n | |
548 | */ | |
549 | ||
550 | pos = scanresp->bssdesc_and_tlvbuffer; | |
551 | ||
4083858c DW |
552 | lbs_deb_hex(LBS_DEB_SCAN, "SCAN_RSP", scanresp->bssdesc_and_tlvbuffer, |
553 | scanresp->bssdescriptsize); | |
554 | ||
e86dc1ca KD |
555 | tsfdesc = pos + bsssize; |
556 | tsfsize = 4 + 8 * scanresp->nr_sets; | |
4083858c | 557 | lbs_deb_hex(LBS_DEB_SCAN, "SCAN_TSF", (u8 *) tsfdesc, tsfsize); |
e86dc1ca KD |
558 | |
559 | /* Validity check: we expect a Marvell-Local TLV */ | |
560 | i = get_unaligned_le16(tsfdesc); | |
561 | tsfdesc += 2; | |
4083858c DW |
562 | if (i != TLV_TYPE_TSFTIMESTAMP) { |
563 | lbs_deb_scan("scan response: invalid TSF Timestamp %d\n", i); | |
e86dc1ca | 564 | goto done; |
4083858c DW |
565 | } |
566 | ||
8973a6e7 RD |
567 | /* |
568 | * Validity check: the TLV holds TSF values with 8 bytes each, so | |
569 | * the size in the TLV must match the nr_sets value | |
570 | */ | |
e86dc1ca KD |
571 | i = get_unaligned_le16(tsfdesc); |
572 | tsfdesc += 2; | |
4083858c DW |
573 | if (i / 8 != scanresp->nr_sets) { |
574 | lbs_deb_scan("scan response: invalid number of TSF timestamp " | |
575 | "sets (expected %d got %d)\n", scanresp->nr_sets, | |
576 | i / 8); | |
e86dc1ca | 577 | goto done; |
4083858c | 578 | } |
e86dc1ca KD |
579 | |
580 | for (i = 0; i < scanresp->nr_sets; i++) { | |
581 | const u8 *bssid; | |
582 | const u8 *ie; | |
583 | int left; | |
584 | int ielen; | |
585 | int rssi; | |
586 | u16 intvl; | |
587 | u16 capa; | |
588 | int chan_no = -1; | |
589 | const u8 *ssid = NULL; | |
590 | u8 ssid_len = 0; | |
591 | DECLARE_SSID_BUF(ssid_buf); | |
592 | ||
593 | int len = get_unaligned_le16(pos); | |
594 | pos += 2; | |
595 | ||
596 | /* BSSID */ | |
597 | bssid = pos; | |
598 | pos += ETH_ALEN; | |
599 | /* RSSI */ | |
600 | rssi = *pos++; | |
601 | /* Packet time stamp */ | |
602 | pos += 8; | |
603 | /* Beacon interval */ | |
604 | intvl = get_unaligned_le16(pos); | |
605 | pos += 2; | |
606 | /* Capabilities */ | |
607 | capa = get_unaligned_le16(pos); | |
608 | pos += 2; | |
609 | ||
610 | /* To find out the channel, we must parse the IEs */ | |
611 | ie = pos; | |
8973a6e7 RD |
612 | /* |
613 | * 6+1+8+2+2: size of BSSID, RSSI, time stamp, beacon | |
614 | * interval, capabilities | |
615 | */ | |
e86dc1ca KD |
616 | ielen = left = len - (6 + 1 + 8 + 2 + 2); |
617 | while (left >= 2) { | |
618 | u8 id, elen; | |
619 | id = *pos++; | |
620 | elen = *pos++; | |
621 | left -= 2; | |
4083858c DW |
622 | if (elen > left || elen == 0) { |
623 | lbs_deb_scan("scan response: invalid IE fmt\n"); | |
e86dc1ca | 624 | goto done; |
4083858c DW |
625 | } |
626 | ||
e86dc1ca KD |
627 | if (id == WLAN_EID_DS_PARAMS) |
628 | chan_no = *pos; | |
629 | if (id == WLAN_EID_SSID) { | |
630 | ssid = pos; | |
631 | ssid_len = elen; | |
632 | } | |
633 | left -= elen; | |
634 | pos += elen; | |
635 | } | |
636 | ||
637 | /* No channel, no luck */ | |
638 | if (chan_no != -1) { | |
639 | struct wiphy *wiphy = priv->wdev->wiphy; | |
59eb21a6 BR |
640 | int freq = ieee80211_channel_to_frequency(chan_no, |
641 | IEEE80211_BAND_2GHZ); | |
e86dc1ca KD |
642 | struct ieee80211_channel *channel = |
643 | ieee80211_get_channel(wiphy, freq); | |
644 | ||
645 | lbs_deb_scan("scan: %pM, capa %04x, chan %2d, %s, " | |
646 | "%d dBm\n", | |
647 | bssid, capa, chan_no, | |
648 | print_ssid(ssid_buf, ssid, ssid_len), | |
649 | LBS_SCAN_RSSI_TO_MBM(rssi)/100); | |
650 | ||
4a55d585 | 651 | if (channel && |
731f8e1c JL |
652 | !(channel->flags & IEEE80211_CHAN_DISABLED)) { |
653 | bss = cfg80211_inform_bss(wiphy, channel, | |
d929bbc6 | 654 | bssid, get_unaligned_le64(tsfdesc), |
e86dc1ca KD |
655 | capa, intvl, ie, ielen, |
656 | LBS_SCAN_RSSI_TO_MBM(rssi), | |
657 | GFP_KERNEL); | |
731f8e1c JL |
658 | cfg80211_put_bss(bss); |
659 | } | |
4083858c DW |
660 | } else |
661 | lbs_deb_scan("scan response: missing BSS channel IE\n"); | |
662 | ||
e86dc1ca KD |
663 | tsfdesc += 8; |
664 | } | |
665 | ret = 0; | |
666 | ||
667 | done: | |
668 | lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret); | |
669 | return ret; | |
670 | } | |
671 | ||
672 | ||
673 | /* | |
674 | * Our scan command contains a TLV, consting of a SSID TLV, a channel list | |
675 | * TLV and a rates TLV. Determine the maximum size of them: | |
676 | */ | |
677 | #define LBS_SCAN_MAX_CMD_SIZE \ | |
678 | (sizeof(struct cmd_ds_802_11_scan) \ | |
679 | + LBS_MAX_SSID_TLV_SIZE \ | |
680 | + LBS_MAX_CHANNEL_LIST_TLV_SIZE \ | |
681 | + LBS_MAX_RATES_TLV_SIZE) | |
682 | ||
683 | /* | |
684 | * Assumes priv->scan_req is initialized and valid | |
685 | * Assumes priv->scan_channel is initialized | |
686 | */ | |
687 | static void lbs_scan_worker(struct work_struct *work) | |
688 | { | |
689 | struct lbs_private *priv = | |
690 | container_of(work, struct lbs_private, scan_work.work); | |
691 | struct cmd_ds_802_11_scan *scan_cmd; | |
692 | u8 *tlv; /* pointer into our current, growing TLV storage area */ | |
693 | int last_channel; | |
694 | int running, carrier; | |
695 | ||
696 | lbs_deb_enter(LBS_DEB_SCAN); | |
697 | ||
698 | scan_cmd = kzalloc(LBS_SCAN_MAX_CMD_SIZE, GFP_KERNEL); | |
699 | if (scan_cmd == NULL) | |
700 | goto out_no_scan_cmd; | |
701 | ||
702 | /* prepare fixed part of scan command */ | |
703 | scan_cmd->bsstype = CMD_BSS_TYPE_ANY; | |
704 | ||
705 | /* stop network while we're away from our main channel */ | |
706 | running = !netif_queue_stopped(priv->dev); | |
707 | carrier = netif_carrier_ok(priv->dev); | |
708 | if (running) | |
709 | netif_stop_queue(priv->dev); | |
710 | if (carrier) | |
711 | netif_carrier_off(priv->dev); | |
712 | ||
713 | /* prepare fixed part of scan command */ | |
714 | tlv = scan_cmd->tlvbuffer; | |
715 | ||
716 | /* add SSID TLV */ | |
b4c3f34a | 717 | if (priv->scan_req->n_ssids && priv->scan_req->ssids[0].ssid_len > 0) |
e86dc1ca KD |
718 | tlv += lbs_add_ssid_tlv(tlv, |
719 | priv->scan_req->ssids[0].ssid, | |
720 | priv->scan_req->ssids[0].ssid_len); | |
721 | ||
722 | /* add channel TLVs */ | |
723 | last_channel = priv->scan_channel + LBS_SCAN_BEFORE_NAP; | |
724 | if (last_channel > priv->scan_req->n_channels) | |
725 | last_channel = priv->scan_req->n_channels; | |
726 | tlv += lbs_add_channel_list_tlv(priv, tlv, last_channel, | |
727 | priv->scan_req->n_ssids); | |
728 | ||
729 | /* add rates TLV */ | |
730 | tlv += lbs_add_supported_rates_tlv(tlv); | |
731 | ||
732 | if (priv->scan_channel < priv->scan_req->n_channels) { | |
733 | cancel_delayed_work(&priv->scan_work); | |
d2e7b342 | 734 | if (netif_running(priv->dev)) |
2e30168b DD |
735 | queue_delayed_work(priv->work_thread, &priv->scan_work, |
736 | msecs_to_jiffies(300)); | |
e86dc1ca KD |
737 | } |
738 | ||
739 | /* This is the final data we are about to send */ | |
740 | scan_cmd->hdr.size = cpu_to_le16(tlv - (u8 *)scan_cmd); | |
741 | lbs_deb_hex(LBS_DEB_SCAN, "SCAN_CMD", (void *)scan_cmd, | |
742 | sizeof(*scan_cmd)); | |
743 | lbs_deb_hex(LBS_DEB_SCAN, "SCAN_TLV", scan_cmd->tlvbuffer, | |
744 | tlv - scan_cmd->tlvbuffer); | |
745 | ||
746 | __lbs_cmd(priv, CMD_802_11_SCAN, &scan_cmd->hdr, | |
747 | le16_to_cpu(scan_cmd->hdr.size), | |
748 | lbs_ret_scan, 0); | |
749 | ||
afbca95f | 750 | if (priv->scan_channel >= priv->scan_req->n_channels) { |
e86dc1ca | 751 | /* Mark scan done */ |
afbca95f | 752 | cancel_delayed_work(&priv->scan_work); |
3209e061 | 753 | lbs_scan_done(priv); |
afbca95f | 754 | } |
e86dc1ca KD |
755 | |
756 | /* Restart network */ | |
757 | if (carrier) | |
758 | netif_carrier_on(priv->dev); | |
759 | if (running && !priv->tx_pending_len) | |
760 | netif_wake_queue(priv->dev); | |
761 | ||
762 | kfree(scan_cmd); | |
763 | ||
cc026819 DW |
764 | /* Wake up anything waiting on scan completion */ |
765 | if (priv->scan_req == NULL) { | |
766 | lbs_deb_scan("scan: waking up waiters\n"); | |
767 | wake_up_all(&priv->scan_q); | |
768 | } | |
769 | ||
e86dc1ca KD |
770 | out_no_scan_cmd: |
771 | lbs_deb_leave(LBS_DEB_SCAN); | |
772 | } | |
773 | ||
cc026819 DW |
774 | static void _internal_start_scan(struct lbs_private *priv, bool internal, |
775 | struct cfg80211_scan_request *request) | |
776 | { | |
777 | lbs_deb_enter(LBS_DEB_CFG80211); | |
778 | ||
779 | lbs_deb_scan("scan: ssids %d, channels %d, ie_len %zd\n", | |
780 | request->n_ssids, request->n_channels, request->ie_len); | |
781 | ||
782 | priv->scan_channel = 0; | |
cc026819 DW |
783 | priv->scan_req = request; |
784 | priv->internal_scan = internal; | |
785 | ||
afbca95f AS |
786 | queue_delayed_work(priv->work_thread, &priv->scan_work, |
787 | msecs_to_jiffies(50)); | |
788 | ||
cc026819 DW |
789 | lbs_deb_leave(LBS_DEB_CFG80211); |
790 | } | |
e86dc1ca | 791 | |
3209e061 AS |
792 | /* |
793 | * Clean up priv->scan_req. Should be used to handle the allocation details. | |
794 | */ | |
795 | void lbs_scan_done(struct lbs_private *priv) | |
796 | { | |
797 | WARN_ON(!priv->scan_req); | |
798 | ||
799 | if (priv->internal_scan) | |
800 | kfree(priv->scan_req); | |
801 | else | |
802 | cfg80211_scan_done(priv->scan_req, false); | |
803 | ||
804 | priv->scan_req = NULL; | |
805 | } | |
806 | ||
e86dc1ca | 807 | static int lbs_cfg_scan(struct wiphy *wiphy, |
e86dc1ca KD |
808 | struct cfg80211_scan_request *request) |
809 | { | |
810 | struct lbs_private *priv = wiphy_priv(wiphy); | |
811 | int ret = 0; | |
812 | ||
813 | lbs_deb_enter(LBS_DEB_CFG80211); | |
814 | ||
815 | if (priv->scan_req || delayed_work_pending(&priv->scan_work)) { | |
816 | /* old scan request not yet processed */ | |
817 | ret = -EAGAIN; | |
818 | goto out; | |
819 | } | |
820 | ||
cc026819 | 821 | _internal_start_scan(priv, false, request); |
e86dc1ca KD |
822 | |
823 | if (priv->surpriseremoved) | |
824 | ret = -EIO; | |
825 | ||
e86dc1ca KD |
826 | out: |
827 | lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); | |
828 | return ret; | |
829 | } | |
830 | ||
831 | ||
832 | ||
833 | ||
8973a6e7 | 834 | /* |
e86dc1ca KD |
835 | * Events |
836 | */ | |
837 | ||
838 | void lbs_send_disconnect_notification(struct lbs_private *priv) | |
839 | { | |
840 | lbs_deb_enter(LBS_DEB_CFG80211); | |
841 | ||
842 | cfg80211_disconnected(priv->dev, | |
843 | 0, | |
844 | NULL, 0, | |
845 | GFP_KERNEL); | |
846 | ||
847 | lbs_deb_leave(LBS_DEB_CFG80211); | |
848 | } | |
849 | ||
850 | void lbs_send_mic_failureevent(struct lbs_private *priv, u32 event) | |
851 | { | |
852 | lbs_deb_enter(LBS_DEB_CFG80211); | |
853 | ||
854 | cfg80211_michael_mic_failure(priv->dev, | |
855 | priv->assoc_bss, | |
856 | event == MACREG_INT_CODE_MIC_ERR_MULTICAST ? | |
857 | NL80211_KEYTYPE_GROUP : | |
858 | NL80211_KEYTYPE_PAIRWISE, | |
859 | -1, | |
860 | NULL, | |
861 | GFP_KERNEL); | |
862 | ||
863 | lbs_deb_leave(LBS_DEB_CFG80211); | |
864 | } | |
865 | ||
866 | ||
867 | ||
868 | ||
8973a6e7 | 869 | /* |
e86dc1ca KD |
870 | * Connect/disconnect |
871 | */ | |
872 | ||
873 | ||
874 | /* | |
875 | * This removes all WEP keys | |
876 | */ | |
877 | static int lbs_remove_wep_keys(struct lbs_private *priv) | |
878 | { | |
879 | struct cmd_ds_802_11_set_wep cmd; | |
880 | int ret; | |
881 | ||
882 | lbs_deb_enter(LBS_DEB_CFG80211); | |
883 | ||
884 | memset(&cmd, 0, sizeof(cmd)); | |
885 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); | |
886 | cmd.keyindex = cpu_to_le16(priv->wep_tx_key); | |
887 | cmd.action = cpu_to_le16(CMD_ACT_REMOVE); | |
888 | ||
889 | ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd); | |
890 | ||
891 | lbs_deb_leave(LBS_DEB_CFG80211); | |
892 | return ret; | |
893 | } | |
894 | ||
895 | /* | |
896 | * Set WEP keys | |
897 | */ | |
898 | static int lbs_set_wep_keys(struct lbs_private *priv) | |
899 | { | |
900 | struct cmd_ds_802_11_set_wep cmd; | |
901 | int i; | |
902 | int ret; | |
903 | ||
904 | lbs_deb_enter(LBS_DEB_CFG80211); | |
905 | ||
906 | /* | |
907 | * command 13 00 | |
908 | * size 50 00 | |
909 | * sequence xx xx | |
910 | * result 00 00 | |
911 | * action 02 00 ACT_ADD | |
912 | * transmit key 00 00 | |
913 | * type for key 1 01 WEP40 | |
914 | * type for key 2 00 | |
915 | * type for key 3 00 | |
916 | * type for key 4 00 | |
917 | * key 1 39 39 39 39 39 00 00 00 | |
918 | * 00 00 00 00 00 00 00 00 | |
919 | * key 2 00 00 00 00 00 00 00 00 | |
920 | * 00 00 00 00 00 00 00 00 | |
921 | * key 3 00 00 00 00 00 00 00 00 | |
922 | * 00 00 00 00 00 00 00 00 | |
923 | * key 4 00 00 00 00 00 00 00 00 | |
924 | */ | |
925 | if (priv->wep_key_len[0] || priv->wep_key_len[1] || | |
926 | priv->wep_key_len[2] || priv->wep_key_len[3]) { | |
927 | /* Only set wep keys if we have at least one of them */ | |
928 | memset(&cmd, 0, sizeof(cmd)); | |
929 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); | |
930 | cmd.keyindex = cpu_to_le16(priv->wep_tx_key); | |
931 | cmd.action = cpu_to_le16(CMD_ACT_ADD); | |
932 | ||
933 | for (i = 0; i < 4; i++) { | |
934 | switch (priv->wep_key_len[i]) { | |
935 | case WLAN_KEY_LEN_WEP40: | |
936 | cmd.keytype[i] = CMD_TYPE_WEP_40_BIT; | |
937 | break; | |
938 | case WLAN_KEY_LEN_WEP104: | |
939 | cmd.keytype[i] = CMD_TYPE_WEP_104_BIT; | |
940 | break; | |
941 | default: | |
942 | cmd.keytype[i] = 0; | |
943 | break; | |
944 | } | |
945 | memcpy(cmd.keymaterial[i], priv->wep_key[i], | |
946 | priv->wep_key_len[i]); | |
947 | } | |
948 | ||
949 | ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd); | |
950 | } else { | |
951 | /* Otherwise remove all wep keys */ | |
952 | ret = lbs_remove_wep_keys(priv); | |
953 | } | |
954 | ||
955 | lbs_deb_leave(LBS_DEB_CFG80211); | |
956 | return ret; | |
957 | } | |
958 | ||
959 | ||
960 | /* | |
961 | * Enable/Disable RSN status | |
962 | */ | |
963 | static int lbs_enable_rsn(struct lbs_private *priv, int enable) | |
964 | { | |
965 | struct cmd_ds_802_11_enable_rsn cmd; | |
966 | int ret; | |
967 | ||
968 | lbs_deb_enter_args(LBS_DEB_CFG80211, "%d", enable); | |
969 | ||
970 | /* | |
971 | * cmd 2f 00 | |
972 | * size 0c 00 | |
973 | * sequence xx xx | |
974 | * result 00 00 | |
975 | * action 01 00 ACT_SET | |
976 | * enable 01 00 | |
977 | */ | |
978 | memset(&cmd, 0, sizeof(cmd)); | |
979 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); | |
980 | cmd.action = cpu_to_le16(CMD_ACT_SET); | |
981 | cmd.enable = cpu_to_le16(enable); | |
982 | ||
983 | ret = lbs_cmd_with_response(priv, CMD_802_11_ENABLE_RSN, &cmd); | |
984 | ||
985 | lbs_deb_leave(LBS_DEB_CFG80211); | |
986 | return ret; | |
987 | } | |
988 | ||
989 | ||
990 | /* | |
991 | * Set WPA/WPA key material | |
992 | */ | |
993 | ||
8973a6e7 RD |
994 | /* |
995 | * like "struct cmd_ds_802_11_key_material", but with cmd_header. Once we | |
996 | * get rid of WEXT, this should go into host.h | |
997 | */ | |
e86dc1ca KD |
998 | |
999 | struct cmd_key_material { | |
1000 | struct cmd_header hdr; | |
1001 | ||
1002 | __le16 action; | |
1003 | struct MrvlIEtype_keyParamSet param; | |
beabe914 | 1004 | } __packed; |
e86dc1ca KD |
1005 | |
1006 | static int lbs_set_key_material(struct lbs_private *priv, | |
1007 | int key_type, | |
1008 | int key_info, | |
1009 | u8 *key, u16 key_len) | |
1010 | { | |
1011 | struct cmd_key_material cmd; | |
1012 | int ret; | |
1013 | ||
1014 | lbs_deb_enter(LBS_DEB_CFG80211); | |
1015 | ||
1016 | /* | |
1017 | * Example for WPA (TKIP): | |
1018 | * | |
1019 | * cmd 5e 00 | |
1020 | * size 34 00 | |
1021 | * sequence xx xx | |
1022 | * result 00 00 | |
1023 | * action 01 00 | |
1024 | * TLV type 00 01 key param | |
1025 | * length 00 26 | |
1026 | * key type 01 00 TKIP | |
1027 | * key info 06 00 UNICAST | ENABLED | |
1028 | * key len 20 00 | |
1029 | * key 32 bytes | |
1030 | */ | |
1031 | memset(&cmd, 0, sizeof(cmd)); | |
1032 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); | |
1033 | cmd.action = cpu_to_le16(CMD_ACT_SET); | |
1034 | cmd.param.type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL); | |
1035 | cmd.param.length = cpu_to_le16(sizeof(cmd.param) - 4); | |
1036 | cmd.param.keytypeid = cpu_to_le16(key_type); | |
1037 | cmd.param.keyinfo = cpu_to_le16(key_info); | |
1038 | cmd.param.keylen = cpu_to_le16(key_len); | |
1039 | if (key && key_len) | |
1040 | memcpy(cmd.param.key, key, key_len); | |
1041 | ||
1042 | ret = lbs_cmd_with_response(priv, CMD_802_11_KEY_MATERIAL, &cmd); | |
1043 | ||
1044 | lbs_deb_leave(LBS_DEB_CFG80211); | |
1045 | return ret; | |
1046 | } | |
1047 | ||
1048 | ||
1049 | /* | |
1050 | * Sets the auth type (open, shared, etc) in the firmware. That | |
1051 | * we use CMD_802_11_AUTHENTICATE is misleading, this firmware | |
1052 | * command doesn't send an authentication frame at all, it just | |
1053 | * stores the auth_type. | |
1054 | */ | |
1055 | static int lbs_set_authtype(struct lbs_private *priv, | |
1056 | struct cfg80211_connect_params *sme) | |
1057 | { | |
1058 | struct cmd_ds_802_11_authenticate cmd; | |
1059 | int ret; | |
1060 | ||
1061 | lbs_deb_enter_args(LBS_DEB_CFG80211, "%d", sme->auth_type); | |
1062 | ||
1063 | /* | |
1064 | * cmd 11 00 | |
1065 | * size 19 00 | |
1066 | * sequence xx xx | |
1067 | * result 00 00 | |
1068 | * BSS id 00 13 19 80 da 30 | |
1069 | * auth type 00 | |
1070 | * reserved 00 00 00 00 00 00 00 00 00 00 | |
1071 | */ | |
1072 | memset(&cmd, 0, sizeof(cmd)); | |
1073 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); | |
1074 | if (sme->bssid) | |
1075 | memcpy(cmd.bssid, sme->bssid, ETH_ALEN); | |
1076 | /* convert auth_type */ | |
1077 | ret = lbs_auth_to_authtype(sme->auth_type); | |
1078 | if (ret < 0) | |
1079 | goto done; | |
1080 | ||
1081 | cmd.authtype = ret; | |
1082 | ret = lbs_cmd_with_response(priv, CMD_802_11_AUTHENTICATE, &cmd); | |
1083 | ||
1084 | done: | |
1085 | lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); | |
1086 | return ret; | |
1087 | } | |
1088 | ||
1089 | ||
1090 | /* | |
1091 | * Create association request | |
1092 | */ | |
1093 | #define LBS_ASSOC_MAX_CMD_SIZE \ | |
1094 | (sizeof(struct cmd_ds_802_11_associate) \ | |
1095 | - 512 /* cmd_ds_802_11_associate.iebuf */ \ | |
1096 | + LBS_MAX_SSID_TLV_SIZE \ | |
1097 | + LBS_MAX_CHANNEL_TLV_SIZE \ | |
1098 | + LBS_MAX_CF_PARAM_TLV_SIZE \ | |
1099 | + LBS_MAX_AUTH_TYPE_TLV_SIZE \ | |
1100 | + LBS_MAX_WPA_TLV_SIZE) | |
1101 | ||
1102 | static int lbs_associate(struct lbs_private *priv, | |
1103 | struct cfg80211_bss *bss, | |
1104 | struct cfg80211_connect_params *sme) | |
1105 | { | |
1106 | struct cmd_ds_802_11_associate_response *resp; | |
1107 | struct cmd_ds_802_11_associate *cmd = kzalloc(LBS_ASSOC_MAX_CMD_SIZE, | |
1108 | GFP_KERNEL); | |
1109 | const u8 *ssid_eid; | |
1110 | size_t len, resp_ie_len; | |
1111 | int status; | |
1112 | int ret; | |
1113 | u8 *pos = &(cmd->iebuf[0]); | |
19757539 | 1114 | u8 *tmp; |
e86dc1ca KD |
1115 | |
1116 | lbs_deb_enter(LBS_DEB_CFG80211); | |
1117 | ||
1118 | if (!cmd) { | |
1119 | ret = -ENOMEM; | |
1120 | goto done; | |
1121 | } | |
1122 | ||
1123 | /* | |
1124 | * cmd 50 00 | |
1125 | * length 34 00 | |
1126 | * sequence xx xx | |
1127 | * result 00 00 | |
1128 | * BSS id 00 13 19 80 da 30 | |
1129 | * capabilities 11 00 | |
1130 | * listen interval 0a 00 | |
1131 | * beacon interval 00 00 | |
1132 | * DTIM period 00 | |
1133 | * TLVs xx (up to 512 bytes) | |
1134 | */ | |
1135 | cmd->hdr.command = cpu_to_le16(CMD_802_11_ASSOCIATE); | |
1136 | ||
1137 | /* Fill in static fields */ | |
1138 | memcpy(cmd->bssid, bss->bssid, ETH_ALEN); | |
1139 | cmd->listeninterval = cpu_to_le16(MRVDRV_DEFAULT_LISTEN_INTERVAL); | |
1140 | cmd->capability = cpu_to_le16(bss->capability); | |
1141 | ||
1142 | /* add SSID TLV */ | |
1143 | ssid_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SSID); | |
1144 | if (ssid_eid) | |
1145 | pos += lbs_add_ssid_tlv(pos, ssid_eid + 2, ssid_eid[1]); | |
1146 | else | |
1147 | lbs_deb_assoc("no SSID\n"); | |
1148 | ||
1149 | /* add DS param TLV */ | |
1150 | if (bss->channel) | |
1151 | pos += lbs_add_channel_tlv(pos, bss->channel->hw_value); | |
1152 | else | |
1153 | lbs_deb_assoc("no channel\n"); | |
1154 | ||
1155 | /* add (empty) CF param TLV */ | |
1156 | pos += lbs_add_cf_param_tlv(pos); | |
1157 | ||
1158 | /* add rates TLV */ | |
19757539 | 1159 | tmp = pos + 4; /* skip Marvell IE header */ |
e86dc1ca | 1160 | pos += lbs_add_common_rates_tlv(pos, bss); |
19757539 | 1161 | lbs_deb_hex(LBS_DEB_ASSOC, "Common Rates", tmp, pos - tmp); |
e86dc1ca KD |
1162 | |
1163 | /* add auth type TLV */ | |
86df5f72 | 1164 | if (MRVL_FW_MAJOR_REV(priv->fwrelease) >= 9) |
e86dc1ca KD |
1165 | pos += lbs_add_auth_type_tlv(pos, sme->auth_type); |
1166 | ||
1167 | /* add WPA/WPA2 TLV */ | |
1168 | if (sme->ie && sme->ie_len) | |
1169 | pos += lbs_add_wpa_tlv(pos, sme->ie, sme->ie_len); | |
1170 | ||
1171 | len = (sizeof(*cmd) - sizeof(cmd->iebuf)) + | |
1172 | (u16)(pos - (u8 *) &cmd->iebuf); | |
1173 | cmd->hdr.size = cpu_to_le16(len); | |
1174 | ||
86df5f72 DW |
1175 | lbs_deb_hex(LBS_DEB_ASSOC, "ASSOC_CMD", (u8 *) cmd, |
1176 | le16_to_cpu(cmd->hdr.size)); | |
1177 | ||
e86dc1ca KD |
1178 | /* store for later use */ |
1179 | memcpy(priv->assoc_bss, bss->bssid, ETH_ALEN); | |
1180 | ||
1181 | ret = lbs_cmd_with_response(priv, CMD_802_11_ASSOCIATE, cmd); | |
1182 | if (ret) | |
1183 | goto done; | |
1184 | ||
e86dc1ca KD |
1185 | /* generate connect message to cfg80211 */ |
1186 | ||
1187 | resp = (void *) cmd; /* recast for easier field access */ | |
1188 | status = le16_to_cpu(resp->statuscode); | |
1189 | ||
86df5f72 DW |
1190 | /* Older FW versions map the IEEE 802.11 Status Code in the association |
1191 | * response to the following values returned in resp->statuscode: | |
1192 | * | |
1193 | * IEEE Status Code Marvell Status Code | |
1194 | * 0 -> 0x0000 ASSOC_RESULT_SUCCESS | |
1195 | * 13 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED | |
1196 | * 14 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED | |
1197 | * 15 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED | |
1198 | * 16 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED | |
1199 | * others -> 0x0003 ASSOC_RESULT_REFUSED | |
1200 | * | |
1201 | * Other response codes: | |
1202 | * 0x0001 -> ASSOC_RESULT_INVALID_PARAMETERS (unused) | |
1203 | * 0x0002 -> ASSOC_RESULT_TIMEOUT (internal timer expired waiting for | |
1204 | * association response from the AP) | |
1205 | */ | |
1206 | if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8) { | |
e86dc1ca KD |
1207 | switch (status) { |
1208 | case 0: | |
1209 | break; | |
1210 | case 1: | |
1211 | lbs_deb_assoc("invalid association parameters\n"); | |
1212 | status = WLAN_STATUS_CAPS_UNSUPPORTED; | |
1213 | break; | |
1214 | case 2: | |
1215 | lbs_deb_assoc("timer expired while waiting for AP\n"); | |
1216 | status = WLAN_STATUS_AUTH_TIMEOUT; | |
1217 | break; | |
1218 | case 3: | |
1219 | lbs_deb_assoc("association refused by AP\n"); | |
1220 | status = WLAN_STATUS_ASSOC_DENIED_UNSPEC; | |
1221 | break; | |
1222 | case 4: | |
1223 | lbs_deb_assoc("authentication refused by AP\n"); | |
1224 | status = WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION; | |
1225 | break; | |
1226 | default: | |
1227 | lbs_deb_assoc("association failure %d\n", status); | |
86df5f72 DW |
1228 | /* v5 OLPC firmware does return the AP status code if |
1229 | * it's not one of the values above. Let that through. | |
1230 | */ | |
1231 | break; | |
1232 | } | |
e86dc1ca KD |
1233 | } |
1234 | ||
86df5f72 DW |
1235 | lbs_deb_assoc("status %d, statuscode 0x%04x, capability 0x%04x, " |
1236 | "aid 0x%04x\n", status, le16_to_cpu(resp->statuscode), | |
1237 | le16_to_cpu(resp->capability), le16_to_cpu(resp->aid)); | |
e86dc1ca KD |
1238 | |
1239 | resp_ie_len = le16_to_cpu(resp->hdr.size) | |
1240 | - sizeof(resp->hdr) | |
1241 | - 6; | |
1242 | cfg80211_connect_result(priv->dev, | |
1243 | priv->assoc_bss, | |
1244 | sme->ie, sme->ie_len, | |
1245 | resp->iebuf, resp_ie_len, | |
1246 | status, | |
1247 | GFP_KERNEL); | |
1248 | ||
1249 | if (status == 0) { | |
1250 | /* TODO: get rid of priv->connect_status */ | |
1251 | priv->connect_status = LBS_CONNECTED; | |
1252 | netif_carrier_on(priv->dev); | |
1253 | if (!priv->tx_pending_len) | |
1254 | netif_tx_wake_all_queues(priv->dev); | |
1255 | } | |
1256 | ||
e86dc1ca KD |
1257 | done: |
1258 | lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); | |
1259 | return ret; | |
1260 | } | |
1261 | ||
cc026819 DW |
1262 | static struct cfg80211_scan_request * |
1263 | _new_connect_scan_req(struct wiphy *wiphy, struct cfg80211_connect_params *sme) | |
1264 | { | |
1265 | struct cfg80211_scan_request *creq = NULL; | |
1266 | int i, n_channels = 0; | |
1267 | enum ieee80211_band band; | |
1268 | ||
1269 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
1270 | if (wiphy->bands[band]) | |
1271 | n_channels += wiphy->bands[band]->n_channels; | |
1272 | } | |
1273 | ||
1274 | creq = kzalloc(sizeof(*creq) + sizeof(struct cfg80211_ssid) + | |
1275 | n_channels * sizeof(void *), | |
1276 | GFP_ATOMIC); | |
1277 | if (!creq) | |
1278 | return NULL; | |
1279 | ||
1280 | /* SSIDs come after channels */ | |
1281 | creq->ssids = (void *)&creq->channels[n_channels]; | |
1282 | creq->n_channels = n_channels; | |
1283 | creq->n_ssids = 1; | |
1284 | ||
1285 | /* Scan all available channels */ | |
1286 | i = 0; | |
1287 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
1288 | int j; | |
1289 | ||
1290 | if (!wiphy->bands[band]) | |
1291 | continue; | |
1292 | ||
1293 | for (j = 0; j < wiphy->bands[band]->n_channels; j++) { | |
1294 | /* ignore disabled channels */ | |
1295 | if (wiphy->bands[band]->channels[j].flags & | |
1296 | IEEE80211_CHAN_DISABLED) | |
1297 | continue; | |
1298 | ||
1299 | creq->channels[i] = &wiphy->bands[band]->channels[j]; | |
1300 | i++; | |
1301 | } | |
1302 | } | |
1303 | if (i) { | |
1304 | /* Set real number of channels specified in creq->channels[] */ | |
1305 | creq->n_channels = i; | |
1306 | ||
1307 | /* Scan for the SSID we're going to connect to */ | |
1308 | memcpy(creq->ssids[0].ssid, sme->ssid, sme->ssid_len); | |
1309 | creq->ssids[0].ssid_len = sme->ssid_len; | |
1310 | } else { | |
1311 | /* No channels found... */ | |
1312 | kfree(creq); | |
1313 | creq = NULL; | |
1314 | } | |
e86dc1ca | 1315 | |
cc026819 DW |
1316 | return creq; |
1317 | } | |
e86dc1ca KD |
1318 | |
1319 | static int lbs_cfg_connect(struct wiphy *wiphy, struct net_device *dev, | |
1320 | struct cfg80211_connect_params *sme) | |
1321 | { | |
1322 | struct lbs_private *priv = wiphy_priv(wiphy); | |
1323 | struct cfg80211_bss *bss = NULL; | |
1324 | int ret = 0; | |
1325 | u8 preamble = RADIO_PREAMBLE_SHORT; | |
1326 | ||
49fee692 DD |
1327 | if (dev == priv->mesh_dev) |
1328 | return -EOPNOTSUPP; | |
1329 | ||
e86dc1ca KD |
1330 | lbs_deb_enter(LBS_DEB_CFG80211); |
1331 | ||
cc026819 | 1332 | if (!sme->bssid) { |
b4c3f34a | 1333 | struct cfg80211_scan_request *creq; |
e86dc1ca | 1334 | |
b4c3f34a DD |
1335 | /* |
1336 | * Scan for the requested network after waiting for existing | |
1337 | * scans to finish. | |
1338 | */ | |
1339 | lbs_deb_assoc("assoc: waiting for existing scans\n"); | |
1340 | wait_event_interruptible_timeout(priv->scan_q, | |
1341 | (priv->scan_req == NULL), | |
1342 | (15 * HZ)); | |
cc026819 | 1343 | |
b4c3f34a DD |
1344 | creq = _new_connect_scan_req(wiphy, sme); |
1345 | if (!creq) { | |
1346 | ret = -EINVAL; | |
1347 | goto done; | |
cc026819 DW |
1348 | } |
1349 | ||
b4c3f34a DD |
1350 | lbs_deb_assoc("assoc: scanning for compatible AP\n"); |
1351 | _internal_start_scan(priv, true, creq); | |
1352 | ||
cc026819 DW |
1353 | lbs_deb_assoc("assoc: waiting for scan to complete\n"); |
1354 | wait_event_interruptible_timeout(priv->scan_q, | |
1355 | (priv->scan_req == NULL), | |
1356 | (15 * HZ)); | |
1357 | lbs_deb_assoc("assoc: scanning competed\n"); | |
1358 | } | |
e86dc1ca | 1359 | |
cc026819 DW |
1360 | /* Find the BSS we want using available scan results */ |
1361 | bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid, | |
1362 | sme->ssid, sme->ssid_len, | |
1363 | WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS); | |
e86dc1ca | 1364 | if (!bss) { |
f3a57fd1 JP |
1365 | wiphy_err(wiphy, "assoc: bss %pM not in scan results\n", |
1366 | sme->bssid); | |
e86dc1ca KD |
1367 | ret = -ENOENT; |
1368 | goto done; | |
1369 | } | |
cc026819 | 1370 | lbs_deb_assoc("trying %pM\n", bss->bssid); |
e86dc1ca KD |
1371 | lbs_deb_assoc("cipher 0x%x, key index %d, key len %d\n", |
1372 | sme->crypto.cipher_group, | |
1373 | sme->key_idx, sme->key_len); | |
1374 | ||
1375 | /* As this is a new connection, clear locally stored WEP keys */ | |
1376 | priv->wep_tx_key = 0; | |
1377 | memset(priv->wep_key, 0, sizeof(priv->wep_key)); | |
1378 | memset(priv->wep_key_len, 0, sizeof(priv->wep_key_len)); | |
1379 | ||
1380 | /* set/remove WEP keys */ | |
1381 | switch (sme->crypto.cipher_group) { | |
1382 | case WLAN_CIPHER_SUITE_WEP40: | |
1383 | case WLAN_CIPHER_SUITE_WEP104: | |
1384 | /* Store provided WEP keys in priv-> */ | |
1385 | priv->wep_tx_key = sme->key_idx; | |
1386 | priv->wep_key_len[sme->key_idx] = sme->key_len; | |
1387 | memcpy(priv->wep_key[sme->key_idx], sme->key, sme->key_len); | |
1388 | /* Set WEP keys and WEP mode */ | |
1389 | lbs_set_wep_keys(priv); | |
1390 | priv->mac_control |= CMD_ACT_MAC_WEP_ENABLE; | |
1391 | lbs_set_mac_control(priv); | |
1392 | /* No RSN mode for WEP */ | |
1393 | lbs_enable_rsn(priv, 0); | |
1394 | break; | |
1395 | case 0: /* there's no WLAN_CIPHER_SUITE_NONE definition */ | |
1396 | /* | |
1397 | * If we don't have no WEP, no WPA and no WPA2, | |
1398 | * we remove all keys like in the WPA/WPA2 setup, | |
1399 | * we just don't set RSN. | |
1400 | * | |
25985edc | 1401 | * Therefore: fall-through |
e86dc1ca KD |
1402 | */ |
1403 | case WLAN_CIPHER_SUITE_TKIP: | |
1404 | case WLAN_CIPHER_SUITE_CCMP: | |
1405 | /* Remove WEP keys and WEP mode */ | |
1406 | lbs_remove_wep_keys(priv); | |
1407 | priv->mac_control &= ~CMD_ACT_MAC_WEP_ENABLE; | |
1408 | lbs_set_mac_control(priv); | |
1409 | ||
1410 | /* clear the WPA/WPA2 keys */ | |
1411 | lbs_set_key_material(priv, | |
1412 | KEY_TYPE_ID_WEP, /* doesn't matter */ | |
1413 | KEY_INFO_WPA_UNICAST, | |
1414 | NULL, 0); | |
1415 | lbs_set_key_material(priv, | |
1416 | KEY_TYPE_ID_WEP, /* doesn't matter */ | |
1417 | KEY_INFO_WPA_MCAST, | |
1418 | NULL, 0); | |
1419 | /* RSN mode for WPA/WPA2 */ | |
1420 | lbs_enable_rsn(priv, sme->crypto.cipher_group != 0); | |
1421 | break; | |
1422 | default: | |
f3a57fd1 JP |
1423 | wiphy_err(wiphy, "unsupported cipher group 0x%x\n", |
1424 | sme->crypto.cipher_group); | |
e86dc1ca KD |
1425 | ret = -ENOTSUPP; |
1426 | goto done; | |
1427 | } | |
1428 | ||
effcc625 AK |
1429 | ret = lbs_set_authtype(priv, sme); |
1430 | if (ret == -ENOTSUPP) { | |
1431 | wiphy_err(wiphy, "unsupported authtype 0x%x\n", sme->auth_type); | |
1432 | goto done; | |
1433 | } | |
1434 | ||
e86dc1ca KD |
1435 | lbs_set_radio(priv, preamble, 1); |
1436 | ||
1437 | /* Do the actual association */ | |
cc026819 | 1438 | ret = lbs_associate(priv, bss, sme); |
e86dc1ca KD |
1439 | |
1440 | done: | |
1441 | if (bss) | |
1442 | cfg80211_put_bss(bss); | |
1443 | lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); | |
1444 | return ret; | |
1445 | } | |
1446 | ||
d2e7b342 | 1447 | int lbs_disconnect(struct lbs_private *priv, u16 reason) |
e86dc1ca | 1448 | { |
e86dc1ca | 1449 | struct cmd_ds_802_11_deauthenticate cmd; |
d2e7b342 | 1450 | int ret; |
e86dc1ca KD |
1451 | |
1452 | memset(&cmd, 0, sizeof(cmd)); | |
1453 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); | |
1454 | /* Mildly ugly to use a locally store my own BSSID ... */ | |
1455 | memcpy(cmd.macaddr, &priv->assoc_bss, ETH_ALEN); | |
d2e7b342 | 1456 | cmd.reasoncode = cpu_to_le16(reason); |
e86dc1ca | 1457 | |
d2e7b342 DD |
1458 | ret = lbs_cmd_with_response(priv, CMD_802_11_DEAUTHENTICATE, &cmd); |
1459 | if (ret) | |
1460 | return ret; | |
e4fe4eaf KD |
1461 | |
1462 | cfg80211_disconnected(priv->dev, | |
d2e7b342 | 1463 | reason, |
e4fe4eaf KD |
1464 | NULL, 0, |
1465 | GFP_KERNEL); | |
1466 | priv->connect_status = LBS_DISCONNECTED; | |
e86dc1ca KD |
1467 | |
1468 | return 0; | |
1469 | } | |
1470 | ||
d2e7b342 DD |
1471 | static int lbs_cfg_disconnect(struct wiphy *wiphy, struct net_device *dev, |
1472 | u16 reason_code) | |
1473 | { | |
1474 | struct lbs_private *priv = wiphy_priv(wiphy); | |
1475 | ||
1476 | if (dev == priv->mesh_dev) | |
1477 | return -EOPNOTSUPP; | |
1478 | ||
1479 | lbs_deb_enter_args(LBS_DEB_CFG80211, "reason_code %d", reason_code); | |
1480 | ||
1481 | /* store for lbs_cfg_ret_disconnect() */ | |
1482 | priv->disassoc_reason = reason_code; | |
1483 | ||
1484 | return lbs_disconnect(priv, reason_code); | |
1485 | } | |
e86dc1ca KD |
1486 | |
1487 | static int lbs_cfg_set_default_key(struct wiphy *wiphy, | |
1488 | struct net_device *netdev, | |
dbd2fd65 JB |
1489 | u8 key_index, bool unicast, |
1490 | bool multicast) | |
e86dc1ca KD |
1491 | { |
1492 | struct lbs_private *priv = wiphy_priv(wiphy); | |
1493 | ||
49fee692 DD |
1494 | if (netdev == priv->mesh_dev) |
1495 | return -EOPNOTSUPP; | |
1496 | ||
e86dc1ca KD |
1497 | lbs_deb_enter(LBS_DEB_CFG80211); |
1498 | ||
1499 | if (key_index != priv->wep_tx_key) { | |
1500 | lbs_deb_assoc("set_default_key: to %d\n", key_index); | |
1501 | priv->wep_tx_key = key_index; | |
1502 | lbs_set_wep_keys(priv); | |
1503 | } | |
1504 | ||
1505 | return 0; | |
1506 | } | |
1507 | ||
1508 | ||
1509 | static int lbs_cfg_add_key(struct wiphy *wiphy, struct net_device *netdev, | |
e31b8213 | 1510 | u8 idx, bool pairwise, const u8 *mac_addr, |
e86dc1ca KD |
1511 | struct key_params *params) |
1512 | { | |
1513 | struct lbs_private *priv = wiphy_priv(wiphy); | |
1514 | u16 key_info; | |
1515 | u16 key_type; | |
1516 | int ret = 0; | |
1517 | ||
49fee692 DD |
1518 | if (netdev == priv->mesh_dev) |
1519 | return -EOPNOTSUPP; | |
1520 | ||
e86dc1ca KD |
1521 | lbs_deb_enter(LBS_DEB_CFG80211); |
1522 | ||
1523 | lbs_deb_assoc("add_key: cipher 0x%x, mac_addr %pM\n", | |
1524 | params->cipher, mac_addr); | |
1525 | lbs_deb_assoc("add_key: key index %d, key len %d\n", | |
1526 | idx, params->key_len); | |
1527 | if (params->key_len) | |
1528 | lbs_deb_hex(LBS_DEB_CFG80211, "KEY", | |
1529 | params->key, params->key_len); | |
1530 | ||
1531 | lbs_deb_assoc("add_key: seq len %d\n", params->seq_len); | |
1532 | if (params->seq_len) | |
1533 | lbs_deb_hex(LBS_DEB_CFG80211, "SEQ", | |
1534 | params->seq, params->seq_len); | |
1535 | ||
1536 | switch (params->cipher) { | |
1537 | case WLAN_CIPHER_SUITE_WEP40: | |
1538 | case WLAN_CIPHER_SUITE_WEP104: | |
1539 | /* actually compare if something has changed ... */ | |
1540 | if ((priv->wep_key_len[idx] != params->key_len) || | |
1541 | memcmp(priv->wep_key[idx], | |
1542 | params->key, params->key_len) != 0) { | |
1543 | priv->wep_key_len[idx] = params->key_len; | |
1544 | memcpy(priv->wep_key[idx], | |
1545 | params->key, params->key_len); | |
1546 | lbs_set_wep_keys(priv); | |
1547 | } | |
1548 | break; | |
1549 | case WLAN_CIPHER_SUITE_TKIP: | |
1550 | case WLAN_CIPHER_SUITE_CCMP: | |
1551 | key_info = KEY_INFO_WPA_ENABLED | ((idx == 0) | |
1552 | ? KEY_INFO_WPA_UNICAST | |
1553 | : KEY_INFO_WPA_MCAST); | |
1554 | key_type = (params->cipher == WLAN_CIPHER_SUITE_TKIP) | |
1555 | ? KEY_TYPE_ID_TKIP | |
1556 | : KEY_TYPE_ID_AES; | |
1557 | lbs_set_key_material(priv, | |
1558 | key_type, | |
1559 | key_info, | |
1560 | params->key, params->key_len); | |
1561 | break; | |
1562 | default: | |
f3a57fd1 | 1563 | wiphy_err(wiphy, "unhandled cipher 0x%x\n", params->cipher); |
e86dc1ca KD |
1564 | ret = -ENOTSUPP; |
1565 | break; | |
1566 | } | |
1567 | ||
1568 | return ret; | |
1569 | } | |
1570 | ||
1571 | ||
1572 | static int lbs_cfg_del_key(struct wiphy *wiphy, struct net_device *netdev, | |
e31b8213 | 1573 | u8 key_index, bool pairwise, const u8 *mac_addr) |
e86dc1ca KD |
1574 | { |
1575 | ||
1576 | lbs_deb_enter(LBS_DEB_CFG80211); | |
1577 | ||
1578 | lbs_deb_assoc("del_key: key_idx %d, mac_addr %pM\n", | |
1579 | key_index, mac_addr); | |
1580 | ||
1581 | #ifdef TODO | |
1582 | struct lbs_private *priv = wiphy_priv(wiphy); | |
1583 | /* | |
1584 | * I think can keep this a NO-OP, because: | |
1585 | ||
1586 | * - we clear all keys whenever we do lbs_cfg_connect() anyway | |
1587 | * - neither "iw" nor "wpa_supplicant" won't call this during | |
1588 | * an ongoing connection | |
1589 | * - TODO: but I have to check if this is still true when | |
1590 | * I set the AP to periodic re-keying | |
1591 | * - we've not kzallec() something when we've added a key at | |
1592 | * lbs_cfg_connect() or lbs_cfg_add_key(). | |
1593 | * | |
1594 | * This causes lbs_cfg_del_key() only called at disconnect time, | |
1595 | * where we'd just waste time deleting a key that is not going | |
1596 | * to be used anyway. | |
1597 | */ | |
1598 | if (key_index < 3 && priv->wep_key_len[key_index]) { | |
1599 | priv->wep_key_len[key_index] = 0; | |
1600 | lbs_set_wep_keys(priv); | |
1601 | } | |
1602 | #endif | |
1603 | ||
1604 | return 0; | |
1605 | } | |
1606 | ||
1607 | ||
8973a6e7 | 1608 | /* |
e86dc1ca KD |
1609 | * Get station |
1610 | */ | |
1611 | ||
e86dc1ca KD |
1612 | static int lbs_cfg_get_station(struct wiphy *wiphy, struct net_device *dev, |
1613 | u8 *mac, struct station_info *sinfo) | |
1614 | { | |
1615 | struct lbs_private *priv = wiphy_priv(wiphy); | |
1616 | s8 signal, noise; | |
1617 | int ret; | |
1618 | size_t i; | |
1619 | ||
1620 | lbs_deb_enter(LBS_DEB_CFG80211); | |
1621 | ||
1622 | sinfo->filled |= STATION_INFO_TX_BYTES | | |
1623 | STATION_INFO_TX_PACKETS | | |
1624 | STATION_INFO_RX_BYTES | | |
1625 | STATION_INFO_RX_PACKETS; | |
1626 | sinfo->tx_bytes = priv->dev->stats.tx_bytes; | |
1627 | sinfo->tx_packets = priv->dev->stats.tx_packets; | |
1628 | sinfo->rx_bytes = priv->dev->stats.rx_bytes; | |
1629 | sinfo->rx_packets = priv->dev->stats.rx_packets; | |
1630 | ||
1631 | /* Get current RSSI */ | |
9fb7663d | 1632 | ret = lbs_get_rssi(priv, &signal, &noise); |
e86dc1ca KD |
1633 | if (ret == 0) { |
1634 | sinfo->signal = signal; | |
1635 | sinfo->filled |= STATION_INFO_SIGNAL; | |
1636 | } | |
1637 | ||
1638 | /* Convert priv->cur_rate from hw_value to NL80211 value */ | |
1639 | for (i = 0; i < ARRAY_SIZE(lbs_rates); i++) { | |
1640 | if (priv->cur_rate == lbs_rates[i].hw_value) { | |
1641 | sinfo->txrate.legacy = lbs_rates[i].bitrate; | |
1642 | sinfo->filled |= STATION_INFO_TX_BITRATE; | |
1643 | break; | |
1644 | } | |
1645 | } | |
1646 | ||
1647 | return 0; | |
1648 | } | |
1649 | ||
1650 | ||
1651 | ||
1652 | ||
8973a6e7 | 1653 | /* |
e86dc1ca KD |
1654 | * Change interface |
1655 | */ | |
1656 | ||
1657 | static int lbs_change_intf(struct wiphy *wiphy, struct net_device *dev, | |
1658 | enum nl80211_iftype type, u32 *flags, | |
1659 | struct vif_params *params) | |
1660 | { | |
1661 | struct lbs_private *priv = wiphy_priv(wiphy); | |
1662 | int ret = 0; | |
1663 | ||
49fee692 DD |
1664 | if (dev == priv->mesh_dev) |
1665 | return -EOPNOTSUPP; | |
1666 | ||
e86dc1ca KD |
1667 | switch (type) { |
1668 | case NL80211_IFTYPE_MONITOR: | |
e86dc1ca | 1669 | case NL80211_IFTYPE_STATION: |
e86dc1ca | 1670 | case NL80211_IFTYPE_ADHOC: |
e86dc1ca KD |
1671 | break; |
1672 | default: | |
5c1381ac | 1673 | return -EOPNOTSUPP; |
e86dc1ca KD |
1674 | } |
1675 | ||
5c1381ac DD |
1676 | lbs_deb_enter(LBS_DEB_CFG80211); |
1677 | ||
1678 | if (priv->iface_running) | |
1679 | ret = lbs_set_iface_type(priv, type); | |
1680 | ||
e86dc1ca KD |
1681 | if (!ret) |
1682 | priv->wdev->iftype = type; | |
1683 | ||
1684 | lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); | |
1685 | return ret; | |
1686 | } | |
1687 | ||
1688 | ||
1689 | ||
8973a6e7 | 1690 | /* |
e86dc1ca KD |
1691 | * IBSS (Ad-Hoc) |
1692 | */ | |
1693 | ||
8973a6e7 RD |
1694 | /* |
1695 | * The firmware needs the following bits masked out of the beacon-derived | |
e86dc1ca KD |
1696 | * capability field when associating/joining to a BSS: |
1697 | * 9 (QoS), 11 (APSD), 12 (unused), 14 (unused), 15 (unused) | |
1698 | */ | |
1699 | #define CAPINFO_MASK (~(0xda00)) | |
1700 | ||
1701 | ||
1702 | static void lbs_join_post(struct lbs_private *priv, | |
1703 | struct cfg80211_ibss_params *params, | |
1704 | u8 *bssid, u16 capability) | |
1705 | { | |
1706 | u8 fake_ie[2 + IEEE80211_MAX_SSID_LEN + /* ssid */ | |
1707 | 2 + 4 + /* basic rates */ | |
1708 | 2 + 1 + /* DS parameter */ | |
1709 | 2 + 2 + /* atim */ | |
1710 | 2 + 8]; /* extended rates */ | |
1711 | u8 *fake = fake_ie; | |
731f8e1c | 1712 | struct cfg80211_bss *bss; |
e86dc1ca KD |
1713 | |
1714 | lbs_deb_enter(LBS_DEB_CFG80211); | |
1715 | ||
1716 | /* | |
1717 | * For cfg80211_inform_bss, we'll need a fake IE, as we can't get | |
1718 | * the real IE from the firmware. So we fabricate a fake IE based on | |
1719 | * what the firmware actually sends (sniffed with wireshark). | |
1720 | */ | |
1721 | /* Fake SSID IE */ | |
1722 | *fake++ = WLAN_EID_SSID; | |
1723 | *fake++ = params->ssid_len; | |
1724 | memcpy(fake, params->ssid, params->ssid_len); | |
1725 | fake += params->ssid_len; | |
1726 | /* Fake supported basic rates IE */ | |
1727 | *fake++ = WLAN_EID_SUPP_RATES; | |
1728 | *fake++ = 4; | |
1729 | *fake++ = 0x82; | |
1730 | *fake++ = 0x84; | |
1731 | *fake++ = 0x8b; | |
1732 | *fake++ = 0x96; | |
1733 | /* Fake DS channel IE */ | |
1734 | *fake++ = WLAN_EID_DS_PARAMS; | |
1735 | *fake++ = 1; | |
1736 | *fake++ = params->channel->hw_value; | |
1737 | /* Fake IBSS params IE */ | |
1738 | *fake++ = WLAN_EID_IBSS_PARAMS; | |
1739 | *fake++ = 2; | |
1740 | *fake++ = 0; /* ATIM=0 */ | |
1741 | *fake++ = 0; | |
1742 | /* Fake extended rates IE, TODO: don't add this for 802.11b only, | |
1743 | * but I don't know how this could be checked */ | |
1744 | *fake++ = WLAN_EID_EXT_SUPP_RATES; | |
1745 | *fake++ = 8; | |
1746 | *fake++ = 0x0c; | |
1747 | *fake++ = 0x12; | |
1748 | *fake++ = 0x18; | |
1749 | *fake++ = 0x24; | |
1750 | *fake++ = 0x30; | |
1751 | *fake++ = 0x48; | |
1752 | *fake++ = 0x60; | |
1753 | *fake++ = 0x6c; | |
1754 | lbs_deb_hex(LBS_DEB_CFG80211, "IE", fake_ie, fake - fake_ie); | |
1755 | ||
731f8e1c JL |
1756 | bss = cfg80211_inform_bss(priv->wdev->wiphy, |
1757 | params->channel, | |
1758 | bssid, | |
1759 | 0, | |
1760 | capability, | |
1761 | params->beacon_interval, | |
1762 | fake_ie, fake - fake_ie, | |
1763 | 0, GFP_KERNEL); | |
1764 | cfg80211_put_bss(bss); | |
e4fe4eaf KD |
1765 | |
1766 | memcpy(priv->wdev->ssid, params->ssid, params->ssid_len); | |
1767 | priv->wdev->ssid_len = params->ssid_len; | |
1768 | ||
e86dc1ca KD |
1769 | cfg80211_ibss_joined(priv->dev, bssid, GFP_KERNEL); |
1770 | ||
1771 | /* TODO: consider doing this at MACREG_INT_CODE_LINK_SENSED time */ | |
1772 | priv->connect_status = LBS_CONNECTED; | |
1773 | netif_carrier_on(priv->dev); | |
1774 | if (!priv->tx_pending_len) | |
1775 | netif_wake_queue(priv->dev); | |
1776 | ||
1777 | lbs_deb_leave(LBS_DEB_CFG80211); | |
1778 | } | |
1779 | ||
1780 | static int lbs_ibss_join_existing(struct lbs_private *priv, | |
1781 | struct cfg80211_ibss_params *params, | |
1782 | struct cfg80211_bss *bss) | |
1783 | { | |
1784 | const u8 *rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SUPP_RATES); | |
1785 | struct cmd_ds_802_11_ad_hoc_join cmd; | |
1786 | u8 preamble = RADIO_PREAMBLE_SHORT; | |
1787 | int ret = 0; | |
1788 | ||
1789 | lbs_deb_enter(LBS_DEB_CFG80211); | |
1790 | ||
1791 | /* TODO: set preamble based on scan result */ | |
1792 | ret = lbs_set_radio(priv, preamble, 1); | |
1793 | if (ret) | |
1794 | goto out; | |
1795 | ||
1796 | /* | |
1797 | * Example CMD_802_11_AD_HOC_JOIN command: | |
1798 | * | |
1799 | * command 2c 00 CMD_802_11_AD_HOC_JOIN | |
1800 | * size 65 00 | |
1801 | * sequence xx xx | |
1802 | * result 00 00 | |
1803 | * bssid 02 27 27 97 2f 96 | |
1804 | * ssid 49 42 53 53 00 00 00 00 | |
1805 | * 00 00 00 00 00 00 00 00 | |
1806 | * 00 00 00 00 00 00 00 00 | |
1807 | * 00 00 00 00 00 00 00 00 | |
1808 | * type 02 CMD_BSS_TYPE_IBSS | |
1809 | * beacon period 64 00 | |
1810 | * dtim period 00 | |
1811 | * timestamp 00 00 00 00 00 00 00 00 | |
1812 | * localtime 00 00 00 00 00 00 00 00 | |
1813 | * IE DS 03 | |
1814 | * IE DS len 01 | |
1815 | * IE DS channel 01 | |
1816 | * reserveed 00 00 00 00 | |
1817 | * IE IBSS 06 | |
1818 | * IE IBSS len 02 | |
1819 | * IE IBSS atim 00 00 | |
1820 | * reserved 00 00 00 00 | |
1821 | * capability 02 00 | |
1822 | * rates 82 84 8b 96 0c 12 18 24 30 48 60 6c 00 | |
1823 | * fail timeout ff 00 | |
1824 | * probe delay 00 00 | |
1825 | */ | |
1826 | memset(&cmd, 0, sizeof(cmd)); | |
1827 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); | |
1828 | ||
1829 | memcpy(cmd.bss.bssid, bss->bssid, ETH_ALEN); | |
1830 | memcpy(cmd.bss.ssid, params->ssid, params->ssid_len); | |
1831 | cmd.bss.type = CMD_BSS_TYPE_IBSS; | |
1832 | cmd.bss.beaconperiod = cpu_to_le16(params->beacon_interval); | |
1833 | cmd.bss.ds.header.id = WLAN_EID_DS_PARAMS; | |
1834 | cmd.bss.ds.header.len = 1; | |
1835 | cmd.bss.ds.channel = params->channel->hw_value; | |
1836 | cmd.bss.ibss.header.id = WLAN_EID_IBSS_PARAMS; | |
1837 | cmd.bss.ibss.header.len = 2; | |
1838 | cmd.bss.ibss.atimwindow = 0; | |
1839 | cmd.bss.capability = cpu_to_le16(bss->capability & CAPINFO_MASK); | |
1840 | ||
1841 | /* set rates to the intersection of our rates and the rates in the | |
1842 | bss */ | |
1843 | if (!rates_eid) { | |
1844 | lbs_add_rates(cmd.bss.rates); | |
1845 | } else { | |
1846 | int hw, i; | |
1847 | u8 rates_max = rates_eid[1]; | |
1848 | u8 *rates = cmd.bss.rates; | |
1849 | for (hw = 0; hw < ARRAY_SIZE(lbs_rates); hw++) { | |
1850 | u8 hw_rate = lbs_rates[hw].bitrate / 5; | |
1851 | for (i = 0; i < rates_max; i++) { | |
1852 | if (hw_rate == (rates_eid[i+2] & 0x7f)) { | |
1853 | u8 rate = rates_eid[i+2]; | |
1854 | if (rate == 0x02 || rate == 0x04 || | |
1855 | rate == 0x0b || rate == 0x16) | |
1856 | rate |= 0x80; | |
1857 | *rates++ = rate; | |
1858 | } | |
1859 | } | |
1860 | } | |
1861 | } | |
1862 | ||
1863 | /* Only v8 and below support setting this */ | |
1864 | if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8) { | |
1865 | cmd.failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT); | |
1866 | cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME); | |
1867 | } | |
1868 | ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_JOIN, &cmd); | |
1869 | if (ret) | |
1870 | goto out; | |
1871 | ||
1872 | /* | |
1873 | * This is a sample response to CMD_802_11_AD_HOC_JOIN: | |
1874 | * | |
1875 | * response 2c 80 | |
1876 | * size 09 00 | |
1877 | * sequence xx xx | |
1878 | * result 00 00 | |
1879 | * reserved 00 | |
1880 | */ | |
1881 | lbs_join_post(priv, params, bss->bssid, bss->capability); | |
1882 | ||
1883 | out: | |
1884 | lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); | |
1885 | return ret; | |
1886 | } | |
1887 | ||
1888 | ||
1889 | ||
1890 | static int lbs_ibss_start_new(struct lbs_private *priv, | |
1891 | struct cfg80211_ibss_params *params) | |
1892 | { | |
1893 | struct cmd_ds_802_11_ad_hoc_start cmd; | |
1894 | struct cmd_ds_802_11_ad_hoc_result *resp = | |
1895 | (struct cmd_ds_802_11_ad_hoc_result *) &cmd; | |
1896 | u8 preamble = RADIO_PREAMBLE_SHORT; | |
1897 | int ret = 0; | |
1898 | u16 capability; | |
1899 | ||
1900 | lbs_deb_enter(LBS_DEB_CFG80211); | |
1901 | ||
1902 | ret = lbs_set_radio(priv, preamble, 1); | |
1903 | if (ret) | |
1904 | goto out; | |
1905 | ||
1906 | /* | |
1907 | * Example CMD_802_11_AD_HOC_START command: | |
1908 | * | |
1909 | * command 2b 00 CMD_802_11_AD_HOC_START | |
1910 | * size b1 00 | |
1911 | * sequence xx xx | |
1912 | * result 00 00 | |
1913 | * ssid 54 45 53 54 00 00 00 00 | |
1914 | * 00 00 00 00 00 00 00 00 | |
1915 | * 00 00 00 00 00 00 00 00 | |
1916 | * 00 00 00 00 00 00 00 00 | |
1917 | * bss type 02 | |
1918 | * beacon period 64 00 | |
1919 | * dtim period 00 | |
1920 | * IE IBSS 06 | |
1921 | * IE IBSS len 02 | |
1922 | * IE IBSS atim 00 00 | |
1923 | * reserved 00 00 00 00 | |
1924 | * IE DS 03 | |
1925 | * IE DS len 01 | |
1926 | * IE DS channel 01 | |
1927 | * reserved 00 00 00 00 | |
1928 | * probe delay 00 00 | |
1929 | * capability 02 00 | |
1930 | * rates 82 84 8b 96 (basic rates with have bit 7 set) | |
1931 | * 0c 12 18 24 30 48 60 6c | |
1932 | * padding 100 bytes | |
1933 | */ | |
1934 | memset(&cmd, 0, sizeof(cmd)); | |
1935 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); | |
1936 | memcpy(cmd.ssid, params->ssid, params->ssid_len); | |
1937 | cmd.bsstype = CMD_BSS_TYPE_IBSS; | |
1938 | cmd.beaconperiod = cpu_to_le16(params->beacon_interval); | |
1939 | cmd.ibss.header.id = WLAN_EID_IBSS_PARAMS; | |
1940 | cmd.ibss.header.len = 2; | |
1941 | cmd.ibss.atimwindow = 0; | |
1942 | cmd.ds.header.id = WLAN_EID_DS_PARAMS; | |
1943 | cmd.ds.header.len = 1; | |
1944 | cmd.ds.channel = params->channel->hw_value; | |
1945 | /* Only v8 and below support setting probe delay */ | |
1946 | if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8) | |
1947 | cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME); | |
1948 | /* TODO: mix in WLAN_CAPABILITY_PRIVACY */ | |
1949 | capability = WLAN_CAPABILITY_IBSS; | |
1950 | cmd.capability = cpu_to_le16(capability); | |
1951 | lbs_add_rates(cmd.rates); | |
1952 | ||
1953 | ||
1954 | ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_START, &cmd); | |
1955 | if (ret) | |
1956 | goto out; | |
1957 | ||
1958 | /* | |
1959 | * This is a sample response to CMD_802_11_AD_HOC_JOIN: | |
1960 | * | |
1961 | * response 2b 80 | |
1962 | * size 14 00 | |
1963 | * sequence xx xx | |
1964 | * result 00 00 | |
1965 | * reserved 00 | |
1966 | * bssid 02 2b 7b 0f 86 0e | |
1967 | */ | |
1968 | lbs_join_post(priv, params, resp->bssid, capability); | |
1969 | ||
1970 | out: | |
1971 | lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); | |
1972 | return ret; | |
1973 | } | |
1974 | ||
1975 | ||
1976 | static int lbs_join_ibss(struct wiphy *wiphy, struct net_device *dev, | |
1977 | struct cfg80211_ibss_params *params) | |
1978 | { | |
1979 | struct lbs_private *priv = wiphy_priv(wiphy); | |
1980 | int ret = 0; | |
1981 | struct cfg80211_bss *bss; | |
1982 | DECLARE_SSID_BUF(ssid_buf); | |
1983 | ||
49fee692 DD |
1984 | if (dev == priv->mesh_dev) |
1985 | return -EOPNOTSUPP; | |
1986 | ||
e86dc1ca KD |
1987 | lbs_deb_enter(LBS_DEB_CFG80211); |
1988 | ||
1989 | if (!params->channel) { | |
1990 | ret = -ENOTSUPP; | |
1991 | goto out; | |
1992 | } | |
1993 | ||
1994 | ret = lbs_set_channel(priv, params->channel->hw_value); | |
1995 | if (ret) | |
ff9fc791 HS |
1996 | goto out; |
1997 | ||
e86dc1ca KD |
1998 | /* Search if someone is beaconing. This assumes that the |
1999 | * bss list is populated already */ | |
2000 | bss = cfg80211_get_bss(wiphy, params->channel, params->bssid, | |
2001 | params->ssid, params->ssid_len, | |
2002 | WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS); | |
2003 | ||
2004 | if (bss) { | |
2005 | ret = lbs_ibss_join_existing(priv, params, bss); | |
2006 | cfg80211_put_bss(bss); | |
2007 | } else | |
2008 | ret = lbs_ibss_start_new(priv, params); | |
2009 | ||
ff9fc791 HS |
2010 | |
2011 | out: | |
2012 | lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); | |
2013 | return ret; | |
2014 | } | |
2015 | ||
2016 | ||
e86dc1ca KD |
2017 | static int lbs_leave_ibss(struct wiphy *wiphy, struct net_device *dev) |
2018 | { | |
2019 | struct lbs_private *priv = wiphy_priv(wiphy); | |
2020 | struct cmd_ds_802_11_ad_hoc_stop cmd; | |
2021 | int ret = 0; | |
2022 | ||
49fee692 DD |
2023 | if (dev == priv->mesh_dev) |
2024 | return -EOPNOTSUPP; | |
2025 | ||
e86dc1ca KD |
2026 | lbs_deb_enter(LBS_DEB_CFG80211); |
2027 | ||
2028 | memset(&cmd, 0, sizeof(cmd)); | |
2029 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); | |
2030 | ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_STOP, &cmd); | |
2031 | ||
2032 | /* TODO: consider doing this at MACREG_INT_CODE_ADHOC_BCN_LOST time */ | |
2033 | lbs_mac_event_disconnected(priv); | |
2034 | ||
2035 | lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); | |
2036 | return ret; | |
2037 | } | |
2038 | ||
ff9fc791 HS |
2039 | |
2040 | ||
e86dc1ca | 2041 | |
8973a6e7 | 2042 | /* |
e86dc1ca KD |
2043 | * Initialization |
2044 | */ | |
2045 | ||
ff9fc791 | 2046 | static struct cfg80211_ops lbs_cfg80211_ops = { |
e8c9bd5b JB |
2047 | .set_monitor_channel = lbs_cfg_set_monitor_channel, |
2048 | .libertas_set_mesh_channel = lbs_cfg_set_mesh_channel, | |
e86dc1ca KD |
2049 | .scan = lbs_cfg_scan, |
2050 | .connect = lbs_cfg_connect, | |
2051 | .disconnect = lbs_cfg_disconnect, | |
2052 | .add_key = lbs_cfg_add_key, | |
2053 | .del_key = lbs_cfg_del_key, | |
2054 | .set_default_key = lbs_cfg_set_default_key, | |
2055 | .get_station = lbs_cfg_get_station, | |
e86dc1ca KD |
2056 | .change_virtual_intf = lbs_change_intf, |
2057 | .join_ibss = lbs_join_ibss, | |
2058 | .leave_ibss = lbs_leave_ibss, | |
ff9fc791 HS |
2059 | }; |
2060 | ||
2061 | ||
2062 | /* | |
2063 | * At this time lbs_private *priv doesn't even exist, so we just allocate | |
2064 | * memory and don't initialize the wiphy further. This is postponed until we | |
2065 | * can talk to the firmware and happens at registration time in | |
2066 | * lbs_cfg_wiphy_register(). | |
2067 | */ | |
2068 | struct wireless_dev *lbs_cfg_alloc(struct device *dev) | |
2069 | { | |
2070 | int ret = 0; | |
2071 | struct wireless_dev *wdev; | |
2072 | ||
2073 | lbs_deb_enter(LBS_DEB_CFG80211); | |
2074 | ||
2075 | wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL); | |
2076 | if (!wdev) { | |
2077 | dev_err(dev, "cannot allocate wireless device\n"); | |
2078 | return ERR_PTR(-ENOMEM); | |
2079 | } | |
2080 | ||
2081 | wdev->wiphy = wiphy_new(&lbs_cfg80211_ops, sizeof(struct lbs_private)); | |
2082 | if (!wdev->wiphy) { | |
2083 | dev_err(dev, "cannot allocate wiphy\n"); | |
2084 | ret = -ENOMEM; | |
2085 | goto err_wiphy_new; | |
2086 | } | |
2087 | ||
2088 | lbs_deb_leave(LBS_DEB_CFG80211); | |
2089 | return wdev; | |
2090 | ||
2091 | err_wiphy_new: | |
2092 | kfree(wdev); | |
2093 | lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); | |
2094 | return ERR_PTR(ret); | |
2095 | } | |
2096 | ||
2097 | ||
e86dc1ca KD |
2098 | static void lbs_cfg_set_regulatory_hint(struct lbs_private *priv) |
2099 | { | |
2100 | struct region_code_mapping { | |
2101 | const char *cn; | |
2102 | int code; | |
2103 | }; | |
2104 | ||
2105 | /* Section 5.17.2 */ | |
482e039f | 2106 | static const struct region_code_mapping regmap[] = { |
e86dc1ca KD |
2107 | {"US ", 0x10}, /* US FCC */ |
2108 | {"CA ", 0x20}, /* Canada */ | |
2109 | {"EU ", 0x30}, /* ETSI */ | |
2110 | {"ES ", 0x31}, /* Spain */ | |
2111 | {"FR ", 0x32}, /* France */ | |
2112 | {"JP ", 0x40}, /* Japan */ | |
2113 | }; | |
2114 | size_t i; | |
2115 | ||
2116 | lbs_deb_enter(LBS_DEB_CFG80211); | |
2117 | ||
2118 | for (i = 0; i < ARRAY_SIZE(regmap); i++) | |
2119 | if (regmap[i].code == priv->regioncode) { | |
2120 | regulatory_hint(priv->wdev->wiphy, regmap[i].cn); | |
2121 | break; | |
2122 | } | |
2123 | ||
2124 | lbs_deb_leave(LBS_DEB_CFG80211); | |
2125 | } | |
2126 | ||
2127 | ||
ff9fc791 HS |
2128 | /* |
2129 | * This function get's called after lbs_setup_firmware() determined the | |
2130 | * firmware capabities. So we can setup the wiphy according to our | |
2131 | * hardware/firmware. | |
2132 | */ | |
2133 | int lbs_cfg_register(struct lbs_private *priv) | |
2134 | { | |
2135 | struct wireless_dev *wdev = priv->wdev; | |
2136 | int ret; | |
2137 | ||
2138 | lbs_deb_enter(LBS_DEB_CFG80211); | |
2139 | ||
2140 | wdev->wiphy->max_scan_ssids = 1; | |
2141 | wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; | |
2142 | ||
e86dc1ca KD |
2143 | wdev->wiphy->interface_modes = |
2144 | BIT(NL80211_IFTYPE_STATION) | | |
2145 | BIT(NL80211_IFTYPE_ADHOC); | |
2146 | if (lbs_rtap_supported(priv)) | |
2147 | wdev->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR); | |
49fee692 DD |
2148 | if (lbs_mesh_activated(priv)) |
2149 | wdev->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MESH_POINT); | |
ff9fc791 | 2150 | |
ff9fc791 HS |
2151 | wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &lbs_band_2ghz; |
2152 | ||
2153 | /* | |
2154 | * We could check priv->fwcapinfo && FW_CAPINFO_WPA, but I have | |
2155 | * never seen a firmware without WPA | |
2156 | */ | |
2157 | wdev->wiphy->cipher_suites = cipher_suites; | |
2158 | wdev->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); | |
1047d5ed | 2159 | wdev->wiphy->reg_notifier = lbs_reg_notifier; |
ff9fc791 HS |
2160 | |
2161 | ret = wiphy_register(wdev->wiphy); | |
2162 | if (ret < 0) | |
0e4e06ae | 2163 | pr_err("cannot register wiphy device\n"); |
ff9fc791 | 2164 | |
73714004 DM |
2165 | priv->wiphy_registered = true; |
2166 | ||
ff9fc791 HS |
2167 | ret = register_netdev(priv->dev); |
2168 | if (ret) | |
0e4e06ae | 2169 | pr_err("cannot register network device\n"); |
ff9fc791 | 2170 | |
e86dc1ca KD |
2171 | INIT_DELAYED_WORK(&priv->scan_work, lbs_scan_worker); |
2172 | ||
2173 | lbs_cfg_set_regulatory_hint(priv); | |
2174 | ||
ff9fc791 HS |
2175 | lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); |
2176 | return ret; | |
2177 | } | |
2178 | ||
1047d5ed KD |
2179 | int lbs_reg_notifier(struct wiphy *wiphy, |
2180 | struct regulatory_request *request) | |
2181 | { | |
cc4b9d39 DW |
2182 | struct lbs_private *priv = wiphy_priv(wiphy); |
2183 | int ret; | |
2184 | ||
1047d5ed KD |
2185 | lbs_deb_enter_args(LBS_DEB_CFG80211, "cfg80211 regulatory domain " |
2186 | "callback for domain %c%c\n", request->alpha2[0], | |
2187 | request->alpha2[1]); | |
2188 | ||
cc4b9d39 | 2189 | ret = lbs_set_11d_domain_info(priv, request, wiphy->bands); |
1047d5ed KD |
2190 | |
2191 | lbs_deb_leave(LBS_DEB_CFG80211); | |
cc4b9d39 | 2192 | return ret; |
1047d5ed | 2193 | } |
ff9fc791 | 2194 | |
e86dc1ca KD |
2195 | void lbs_scan_deinit(struct lbs_private *priv) |
2196 | { | |
2197 | lbs_deb_enter(LBS_DEB_CFG80211); | |
2198 | cancel_delayed_work_sync(&priv->scan_work); | |
2199 | } | |
2200 | ||
2201 | ||
ff9fc791 HS |
2202 | void lbs_cfg_free(struct lbs_private *priv) |
2203 | { | |
2204 | struct wireless_dev *wdev = priv->wdev; | |
2205 | ||
2206 | lbs_deb_enter(LBS_DEB_CFG80211); | |
2207 | ||
2208 | if (!wdev) | |
2209 | return; | |
2210 | ||
73714004 | 2211 | if (priv->wiphy_registered) |
ff9fc791 | 2212 | wiphy_unregister(wdev->wiphy); |
73714004 DM |
2213 | |
2214 | if (wdev->wiphy) | |
ff9fc791 | 2215 | wiphy_free(wdev->wiphy); |
73714004 | 2216 | |
ff9fc791 HS |
2217 | kfree(wdev); |
2218 | } |