Commit | Line | Data |
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876c9d3a MT |
1 | /* Copyright (C) 2006, Red Hat, Inc. */ |
2 | ||
3cf20931 | 3 | #include <linux/etherdevice.h> |
876c9d3a MT |
4 | |
5 | #include "assoc.h" | |
876c9d3a | 6 | #include "decl.h" |
876c9d3a | 7 | #include "host.h" |
245bf20f | 8 | #include "scan.h" |
2dd4b262 | 9 | #include "cmd.h" |
876c9d3a | 10 | |
f5fe1fda | 11 | static int lbs_adhoc_post(struct lbs_private *priv, struct cmd_header *resp); |
876c9d3a | 12 | |
5a6e0434 IH |
13 | static const u8 bssid_any[ETH_ALEN] __attribute__ ((aligned (2))) = |
14 | { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; | |
15 | static const u8 bssid_off[ETH_ALEN] __attribute__ ((aligned (2))) = | |
16 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; | |
876c9d3a | 17 | |
697900ac HS |
18 | /* The firmware needs certain bits masked out of the beacon-derviced capability |
19 | * field when associating/joining to BSSs. | |
20 | */ | |
21 | #define CAPINFO_MASK (~(0xda00)) | |
22 | ||
23 | ||
f5fe1fda DW |
24 | /** |
25 | * @brief This function finds common rates between rates and card rates. | |
26 | * | |
27 | * It will fill common rates in rates as output if found. | |
28 | * | |
29 | * NOTE: Setting the MSB of the basic rates need to be taken | |
30 | * care, either before or after calling this function | |
31 | * | |
32 | * @param priv A pointer to struct lbs_private structure | |
33 | * @param rates the buffer which keeps input and output | |
34 | * @param rates_size the size of rate1 buffer; new size of buffer on return | |
35 | * | |
36 | * @return 0 on success, or -1 on error | |
37 | */ | |
38 | static int get_common_rates(struct lbs_private *priv, | |
39 | u8 *rates, | |
40 | u16 *rates_size) | |
41 | { | |
42 | u8 *card_rates = lbs_bg_rates; | |
43 | size_t num_card_rates = sizeof(lbs_bg_rates); | |
44 | int ret = 0, i, j; | |
45 | u8 tmp[30]; | |
46 | size_t tmp_size = 0; | |
47 | ||
48 | /* For each rate in card_rates that exists in rate1, copy to tmp */ | |
49 | for (i = 0; card_rates[i] && (i < num_card_rates); i++) { | |
50 | for (j = 0; rates[j] && (j < *rates_size); j++) { | |
51 | if (rates[j] == card_rates[i]) | |
52 | tmp[tmp_size++] = card_rates[i]; | |
53 | } | |
54 | } | |
55 | ||
56 | lbs_deb_hex(LBS_DEB_JOIN, "AP rates ", rates, *rates_size); | |
57 | lbs_deb_hex(LBS_DEB_JOIN, "card rates ", card_rates, num_card_rates); | |
58 | lbs_deb_hex(LBS_DEB_JOIN, "common rates", tmp, tmp_size); | |
59 | lbs_deb_join("TX data rate 0x%02x\n", priv->cur_rate); | |
60 | ||
61 | if (!priv->enablehwauto) { | |
62 | for (i = 0; i < tmp_size; i++) { | |
63 | if (tmp[i] == priv->cur_rate) | |
64 | goto done; | |
65 | } | |
66 | lbs_pr_alert("Previously set fixed data rate %#x isn't " | |
67 | "compatible with the network.\n", priv->cur_rate); | |
68 | ret = -1; | |
69 | goto done; | |
70 | } | |
71 | ret = 0; | |
72 | ||
73 | done: | |
74 | memset(rates, 0, *rates_size); | |
75 | *rates_size = min_t(int, tmp_size, *rates_size); | |
76 | memcpy(rates, tmp, *rates_size); | |
77 | return ret; | |
78 | } | |
79 | ||
80 | ||
81 | /** | |
82 | * @brief Sets the MSB on basic rates as the firmware requires | |
83 | * | |
84 | * Scan through an array and set the MSB for basic data rates. | |
85 | * | |
86 | * @param rates buffer of data rates | |
87 | * @param len size of buffer | |
88 | */ | |
89 | static void lbs_set_basic_rate_flags(u8 *rates, size_t len) | |
90 | { | |
91 | int i; | |
92 | ||
93 | for (i = 0; i < len; i++) { | |
94 | if (rates[i] == 0x02 || rates[i] == 0x04 || | |
95 | rates[i] == 0x0b || rates[i] == 0x16) | |
96 | rates[i] |= 0x80; | |
97 | } | |
98 | } | |
99 | ||
697900ac HS |
100 | |
101 | /** | |
102 | * @brief Associate to a specific BSS discovered in a scan | |
103 | * | |
104 | * @param priv A pointer to struct lbs_private structure | |
d5db2dfa | 105 | * @param assoc_req The association request describing the BSS to associate with |
697900ac HS |
106 | * |
107 | * @return 0-success, otherwise fail | |
108 | */ | |
109 | static int lbs_associate(struct lbs_private *priv, | |
110 | struct assoc_request *assoc_req) | |
111 | { | |
112 | int ret; | |
d5db2dfa | 113 | u8 preamble = RADIO_PREAMBLE_LONG; |
697900ac HS |
114 | |
115 | lbs_deb_enter(LBS_DEB_ASSOC); | |
116 | ||
117 | ret = lbs_prepare_and_send_command(priv, CMD_802_11_AUTHENTICATE, | |
118 | 0, CMD_OPTION_WAITFORRSP, | |
119 | 0, assoc_req->bss.bssid); | |
697900ac | 120 | if (ret) |
d5db2dfa | 121 | goto out; |
697900ac | 122 | |
d5db2dfa | 123 | /* Use short preamble only when both the BSS and firmware support it */ |
697900ac HS |
124 | if ((priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) && |
125 | (assoc_req->bss.capability & WLAN_CAPABILITY_SHORT_PREAMBLE)) | |
d5db2dfa | 126 | preamble = RADIO_PREAMBLE_SHORT; |
697900ac | 127 | |
d5db2dfa DW |
128 | ret = lbs_set_radio(priv, preamble, 1); |
129 | if (ret) | |
130 | goto out; | |
697900ac HS |
131 | |
132 | ret = lbs_prepare_and_send_command(priv, CMD_802_11_ASSOCIATE, | |
133 | 0, CMD_OPTION_WAITFORRSP, 0, assoc_req); | |
134 | ||
d5db2dfa | 135 | out: |
697900ac HS |
136 | lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret); |
137 | return ret; | |
138 | } | |
139 | ||
140 | /** | |
141 | * @brief Join an adhoc network found in a previous scan | |
142 | * | |
143 | * @param priv A pointer to struct lbs_private structure | |
d5db2dfa | 144 | * @param assoc_req The association request describing the BSS to join |
697900ac | 145 | * |
f5fe1fda | 146 | * @return 0 on success, error on failure |
697900ac | 147 | */ |
f5fe1fda | 148 | static int lbs_adhoc_join(struct lbs_private *priv, |
697900ac HS |
149 | struct assoc_request *assoc_req) |
150 | { | |
f5fe1fda | 151 | struct cmd_ds_802_11_ad_hoc_join cmd; |
697900ac | 152 | struct bss_descriptor *bss = &assoc_req->bss; |
d5db2dfa | 153 | u8 preamble = RADIO_PREAMBLE_LONG; |
f5fe1fda DW |
154 | u16 ratesize = 0; |
155 | int ret = 0; | |
d5db2dfa DW |
156 | |
157 | lbs_deb_enter(LBS_DEB_ASSOC); | |
697900ac HS |
158 | |
159 | lbs_deb_join("current SSID '%s', ssid length %u\n", | |
160 | escape_essid(priv->curbssparams.ssid, | |
161 | priv->curbssparams.ssid_len), | |
162 | priv->curbssparams.ssid_len); | |
163 | lbs_deb_join("requested ssid '%s', ssid length %u\n", | |
164 | escape_essid(bss->ssid, bss->ssid_len), | |
165 | bss->ssid_len); | |
166 | ||
167 | /* check if the requested SSID is already joined */ | |
168 | if (priv->curbssparams.ssid_len && | |
169 | !lbs_ssid_cmp(priv->curbssparams.ssid, | |
170 | priv->curbssparams.ssid_len, | |
171 | bss->ssid, bss->ssid_len) && | |
172 | (priv->mode == IW_MODE_ADHOC) && | |
173 | (priv->connect_status == LBS_CONNECTED)) { | |
174 | union iwreq_data wrqu; | |
175 | ||
176 | lbs_deb_join("ADHOC_J_CMD: New ad-hoc SSID is the same as " | |
177 | "current, not attempting to re-join"); | |
178 | ||
179 | /* Send the re-association event though, because the association | |
180 | * request really was successful, even if just a null-op. | |
181 | */ | |
182 | memset(&wrqu, 0, sizeof(wrqu)); | |
183 | memcpy(wrqu.ap_addr.sa_data, priv->curbssparams.bssid, | |
184 | ETH_ALEN); | |
185 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
186 | wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL); | |
187 | goto out; | |
188 | } | |
189 | ||
d5db2dfa DW |
190 | /* Use short preamble only when both the BSS and firmware support it */ |
191 | if ((priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) && | |
192 | (bss->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)) { | |
697900ac | 193 | lbs_deb_join("AdhocJoin: Short preamble\n"); |
d5db2dfa | 194 | preamble = RADIO_PREAMBLE_SHORT; |
697900ac HS |
195 | } |
196 | ||
d5db2dfa DW |
197 | ret = lbs_set_radio(priv, preamble, 1); |
198 | if (ret) | |
199 | goto out; | |
697900ac HS |
200 | |
201 | lbs_deb_join("AdhocJoin: channel = %d\n", assoc_req->channel); | |
202 | lbs_deb_join("AdhocJoin: band = %c\n", assoc_req->band); | |
203 | ||
204 | priv->adhoccreate = 0; | |
f5fe1fda | 205 | priv->curbssparams.channel = bss->channel; |
697900ac | 206 | |
f5fe1fda DW |
207 | /* Build the join command */ |
208 | memset(&cmd, 0, sizeof(cmd)); | |
209 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); | |
210 | ||
211 | cmd.bss.type = CMD_BSS_TYPE_IBSS; | |
212 | cmd.bss.beaconperiod = cpu_to_le16(bss->beaconperiod); | |
213 | ||
214 | memcpy(&cmd.bss.bssid, &bss->bssid, ETH_ALEN); | |
215 | memcpy(&cmd.bss.ssid, &bss->ssid, bss->ssid_len); | |
216 | ||
217 | memcpy(&cmd.bss.phyparamset, &bss->phyparamset, | |
218 | sizeof(union ieeetypes_phyparamset)); | |
219 | ||
220 | memcpy(&cmd.bss.ssparamset, &bss->ssparamset, | |
221 | sizeof(union IEEEtypes_ssparamset)); | |
222 | ||
223 | cmd.bss.capability = cpu_to_le16(bss->capability & CAPINFO_MASK); | |
224 | lbs_deb_join("ADHOC_J_CMD: tmpcap=%4X CAPINFO_MASK=%4X\n", | |
225 | bss->capability, CAPINFO_MASK); | |
226 | ||
227 | /* information on BSSID descriptor passed to FW */ | |
e174961c JB |
228 | lbs_deb_join("ADHOC_J_CMD: BSSID = %pM, SSID = '%s'\n", |
229 | cmd.bss.bssid, cmd.bss.ssid); | |
f5fe1fda DW |
230 | |
231 | /* Only v8 and below support setting these */ | |
232 | if (priv->fwrelease < 0x09000000) { | |
233 | /* failtimeout */ | |
234 | cmd.failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT); | |
235 | /* probedelay */ | |
236 | cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME); | |
237 | } | |
238 | ||
239 | /* Copy Data rates from the rates recorded in scan response */ | |
240 | memset(cmd.bss.rates, 0, sizeof(cmd.bss.rates)); | |
241 | ratesize = min_t(u16, sizeof(cmd.bss.rates), MAX_RATES); | |
242 | memcpy(cmd.bss.rates, bss->rates, ratesize); | |
243 | if (get_common_rates(priv, cmd.bss.rates, &ratesize)) { | |
244 | lbs_deb_join("ADHOC_JOIN: get_common_rates returned error.\n"); | |
245 | ret = -1; | |
246 | goto out; | |
247 | } | |
248 | ||
249 | /* Copy the ad-hoc creation rates into Current BSS state structure */ | |
250 | memset(&priv->curbssparams.rates, 0, sizeof(priv->curbssparams.rates)); | |
251 | memcpy(&priv->curbssparams.rates, cmd.bss.rates, ratesize); | |
252 | ||
253 | /* Set MSB on basic rates as the firmware requires, but _after_ | |
254 | * copying to current bss rates. | |
255 | */ | |
256 | lbs_set_basic_rate_flags(cmd.bss.rates, ratesize); | |
257 | ||
258 | cmd.bss.ssparamset.ibssparamset.atimwindow = cpu_to_le16(bss->atimwindow); | |
259 | ||
260 | if (assoc_req->secinfo.wep_enabled) { | |
261 | u16 tmp = le16_to_cpu(cmd.bss.capability); | |
262 | tmp |= WLAN_CAPABILITY_PRIVACY; | |
263 | cmd.bss.capability = cpu_to_le16(tmp); | |
264 | } | |
265 | ||
266 | if (priv->psmode == LBS802_11POWERMODEMAX_PSP) { | |
267 | __le32 local_ps_mode = cpu_to_le32(LBS802_11POWERMODECAM); | |
268 | ||
269 | /* wake up first */ | |
270 | ret = lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE, | |
271 | CMD_ACT_SET, 0, 0, | |
272 | &local_ps_mode); | |
273 | if (ret) { | |
274 | ret = -1; | |
275 | goto out; | |
276 | } | |
277 | } | |
278 | ||
279 | if (lbs_parse_dnld_countryinfo_11d(priv, bss)) { | |
280 | ret = -1; | |
281 | goto out; | |
282 | } | |
283 | ||
284 | ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_JOIN, &cmd); | |
285 | if (ret == 0) | |
286 | ret = lbs_adhoc_post(priv, (struct cmd_header *) &cmd); | |
697900ac HS |
287 | |
288 | out: | |
d5db2dfa | 289 | lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret); |
697900ac HS |
290 | return ret; |
291 | } | |
292 | ||
293 | /** | |
294 | * @brief Start an Adhoc Network | |
295 | * | |
296 | * @param priv A pointer to struct lbs_private structure | |
d5db2dfa | 297 | * @param assoc_req The association request describing the BSS to start |
f5fe1fda DW |
298 | * |
299 | * @return 0 on success, error on failure | |
697900ac | 300 | */ |
f5fe1fda | 301 | static int lbs_adhoc_start(struct lbs_private *priv, |
697900ac HS |
302 | struct assoc_request *assoc_req) |
303 | { | |
f5fe1fda | 304 | struct cmd_ds_802_11_ad_hoc_start cmd; |
d5db2dfa | 305 | u8 preamble = RADIO_PREAMBLE_LONG; |
f5fe1fda DW |
306 | size_t ratesize = 0; |
307 | u16 tmpcap = 0; | |
308 | int ret = 0; | |
d5db2dfa DW |
309 | |
310 | lbs_deb_enter(LBS_DEB_ASSOC); | |
697900ac | 311 | |
697900ac | 312 | if (priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) { |
f5fe1fda | 313 | lbs_deb_join("ADHOC_START: Will use short preamble\n"); |
d5db2dfa | 314 | preamble = RADIO_PREAMBLE_SHORT; |
697900ac HS |
315 | } |
316 | ||
d5db2dfa DW |
317 | ret = lbs_set_radio(priv, preamble, 1); |
318 | if (ret) | |
319 | goto out; | |
697900ac | 320 | |
f5fe1fda DW |
321 | /* Build the start command */ |
322 | memset(&cmd, 0, sizeof(cmd)); | |
323 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); | |
697900ac | 324 | |
f5fe1fda DW |
325 | memcpy(cmd.ssid, assoc_req->ssid, assoc_req->ssid_len); |
326 | ||
327 | lbs_deb_join("ADHOC_START: SSID '%s', ssid length %u\n", | |
328 | escape_essid(assoc_req->ssid, assoc_req->ssid_len), | |
329 | assoc_req->ssid_len); | |
330 | ||
331 | cmd.bsstype = CMD_BSS_TYPE_IBSS; | |
332 | ||
333 | if (priv->beacon_period == 0) | |
334 | priv->beacon_period = MRVDRV_BEACON_INTERVAL; | |
335 | cmd.beaconperiod = cpu_to_le16(priv->beacon_period); | |
336 | ||
337 | WARN_ON(!assoc_req->channel); | |
338 | ||
339 | /* set Physical parameter set */ | |
340 | cmd.phyparamset.dsparamset.elementid = MFIE_TYPE_DS_SET; | |
341 | cmd.phyparamset.dsparamset.len = 1; | |
342 | cmd.phyparamset.dsparamset.currentchan = assoc_req->channel; | |
343 | ||
344 | /* set IBSS parameter set */ | |
345 | cmd.ssparamset.ibssparamset.elementid = MFIE_TYPE_IBSS_SET; | |
346 | cmd.ssparamset.ibssparamset.len = 2; | |
347 | cmd.ssparamset.ibssparamset.atimwindow = 0; | |
348 | ||
349 | /* set capability info */ | |
350 | tmpcap = WLAN_CAPABILITY_IBSS; | |
351 | if (assoc_req->secinfo.wep_enabled) { | |
352 | lbs_deb_join("ADHOC_START: WEP enabled, setting privacy on\n"); | |
353 | tmpcap |= WLAN_CAPABILITY_PRIVACY; | |
354 | } else | |
355 | lbs_deb_join("ADHOC_START: WEP disabled, setting privacy off\n"); | |
356 | ||
357 | cmd.capability = cpu_to_le16(tmpcap); | |
358 | ||
359 | /* Only v8 and below support setting probe delay */ | |
360 | if (priv->fwrelease < 0x09000000) | |
361 | cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME); | |
362 | ||
363 | ratesize = min(sizeof(cmd.rates), sizeof(lbs_bg_rates)); | |
364 | memcpy(cmd.rates, lbs_bg_rates, ratesize); | |
365 | ||
366 | /* Copy the ad-hoc creating rates into Current BSS state structure */ | |
367 | memset(&priv->curbssparams.rates, 0, sizeof(priv->curbssparams.rates)); | |
368 | memcpy(&priv->curbssparams.rates, &cmd.rates, ratesize); | |
369 | ||
370 | /* Set MSB on basic rates as the firmware requires, but _after_ | |
371 | * copying to current bss rates. | |
372 | */ | |
373 | lbs_set_basic_rate_flags(cmd.rates, ratesize); | |
374 | ||
375 | lbs_deb_join("ADHOC_START: rates=%02x %02x %02x %02x\n", | |
376 | cmd.rates[0], cmd.rates[1], cmd.rates[2], cmd.rates[3]); | |
377 | ||
378 | if (lbs_create_dnld_countryinfo_11d(priv)) { | |
379 | lbs_deb_join("ADHOC_START: dnld_countryinfo_11d failed\n"); | |
380 | ret = -1; | |
381 | goto out; | |
382 | } | |
383 | ||
384 | lbs_deb_join("ADHOC_START: Starting Ad-Hoc BSS on channel %d, band %d\n", | |
385 | assoc_req->channel, assoc_req->band); | |
386 | ||
387 | priv->adhoccreate = 1; | |
388 | priv->mode = IW_MODE_ADHOC; | |
389 | ||
390 | ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_START, &cmd); | |
391 | if (ret == 0) | |
392 | ret = lbs_adhoc_post(priv, (struct cmd_header *) &cmd); | |
697900ac | 393 | |
d5db2dfa DW |
394 | out: |
395 | lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret); | |
697900ac HS |
396 | return ret; |
397 | } | |
398 | ||
f5fe1fda DW |
399 | /** |
400 | * @brief Stop and Ad-Hoc network and exit Ad-Hoc mode | |
401 | * | |
402 | * @param priv A pointer to struct lbs_private structure | |
403 | * @return 0 on success, or an error | |
404 | */ | |
405 | int lbs_adhoc_stop(struct lbs_private *priv) | |
697900ac | 406 | { |
f5fe1fda DW |
407 | struct cmd_ds_802_11_ad_hoc_stop cmd; |
408 | int ret; | |
409 | ||
410 | lbs_deb_enter(LBS_DEB_JOIN); | |
411 | ||
412 | memset(&cmd, 0, sizeof (cmd)); | |
413 | cmd.hdr.size = cpu_to_le16 (sizeof (cmd)); | |
414 | ||
415 | ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_STOP, &cmd); | |
416 | ||
417 | /* Clean up everything even if there was an error */ | |
418 | lbs_mac_event_disconnected(priv); | |
419 | ||
420 | lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret); | |
421 | return ret; | |
697900ac | 422 | } |
e76850d6 | 423 | |
245bf20f HS |
424 | static inline int match_bss_no_security(struct lbs_802_11_security *secinfo, |
425 | struct bss_descriptor *match_bss) | |
426 | { | |
427 | if (!secinfo->wep_enabled && !secinfo->WPAenabled | |
428 | && !secinfo->WPA2enabled | |
429 | && match_bss->wpa_ie[0] != MFIE_TYPE_GENERIC | |
430 | && match_bss->rsn_ie[0] != MFIE_TYPE_RSN | |
431 | && !(match_bss->capability & WLAN_CAPABILITY_PRIVACY)) | |
432 | return 1; | |
433 | else | |
434 | return 0; | |
435 | } | |
436 | ||
437 | static inline int match_bss_static_wep(struct lbs_802_11_security *secinfo, | |
438 | struct bss_descriptor *match_bss) | |
439 | { | |
440 | if (secinfo->wep_enabled && !secinfo->WPAenabled | |
441 | && !secinfo->WPA2enabled | |
442 | && (match_bss->capability & WLAN_CAPABILITY_PRIVACY)) | |
443 | return 1; | |
444 | else | |
445 | return 0; | |
446 | } | |
447 | ||
448 | static inline int match_bss_wpa(struct lbs_802_11_security *secinfo, | |
449 | struct bss_descriptor *match_bss) | |
450 | { | |
451 | if (!secinfo->wep_enabled && secinfo->WPAenabled | |
452 | && (match_bss->wpa_ie[0] == MFIE_TYPE_GENERIC) | |
453 | /* privacy bit may NOT be set in some APs like LinkSys WRT54G | |
454 | && (match_bss->capability & WLAN_CAPABILITY_PRIVACY) */ | |
455 | ) | |
456 | return 1; | |
457 | else | |
458 | return 0; | |
459 | } | |
460 | ||
461 | static inline int match_bss_wpa2(struct lbs_802_11_security *secinfo, | |
462 | struct bss_descriptor *match_bss) | |
463 | { | |
464 | if (!secinfo->wep_enabled && secinfo->WPA2enabled && | |
465 | (match_bss->rsn_ie[0] == MFIE_TYPE_RSN) | |
466 | /* privacy bit may NOT be set in some APs like LinkSys WRT54G | |
467 | (match_bss->capability & WLAN_CAPABILITY_PRIVACY) */ | |
468 | ) | |
469 | return 1; | |
470 | else | |
471 | return 0; | |
472 | } | |
473 | ||
474 | static inline int match_bss_dynamic_wep(struct lbs_802_11_security *secinfo, | |
475 | struct bss_descriptor *match_bss) | |
476 | { | |
477 | if (!secinfo->wep_enabled && !secinfo->WPAenabled | |
478 | && !secinfo->WPA2enabled | |
479 | && (match_bss->wpa_ie[0] != MFIE_TYPE_GENERIC) | |
480 | && (match_bss->rsn_ie[0] != MFIE_TYPE_RSN) | |
481 | && (match_bss->capability & WLAN_CAPABILITY_PRIVACY)) | |
482 | return 1; | |
483 | else | |
484 | return 0; | |
485 | } | |
486 | ||
487 | /** | |
488 | * @brief Check if a scanned network compatible with the driver settings | |
489 | * | |
490 | * WEP WPA WPA2 ad-hoc encrypt Network | |
491 | * enabled enabled enabled AES mode privacy WPA WPA2 Compatible | |
492 | * 0 0 0 0 NONE 0 0 0 yes No security | |
493 | * 1 0 0 0 NONE 1 0 0 yes Static WEP | |
494 | * 0 1 0 0 x 1x 1 x yes WPA | |
495 | * 0 0 1 0 x 1x x 1 yes WPA2 | |
496 | * 0 0 0 1 NONE 1 0 0 yes Ad-hoc AES | |
497 | * 0 0 0 0 !=NONE 1 0 0 yes Dynamic WEP | |
498 | * | |
499 | * | |
500 | * @param priv A pointer to struct lbs_private | |
501 | * @param index Index in scantable to check against current driver settings | |
502 | * @param mode Network mode: Infrastructure or IBSS | |
503 | * | |
504 | * @return Index in scantable, or error code if negative | |
505 | */ | |
506 | static int is_network_compatible(struct lbs_private *priv, | |
507 | struct bss_descriptor *bss, uint8_t mode) | |
508 | { | |
509 | int matched = 0; | |
510 | ||
511 | lbs_deb_enter(LBS_DEB_SCAN); | |
512 | ||
513 | if (bss->mode != mode) | |
514 | goto done; | |
515 | ||
516 | matched = match_bss_no_security(&priv->secinfo, bss); | |
517 | if (matched) | |
518 | goto done; | |
519 | matched = match_bss_static_wep(&priv->secinfo, bss); | |
520 | if (matched) | |
521 | goto done; | |
522 | matched = match_bss_wpa(&priv->secinfo, bss); | |
523 | if (matched) { | |
524 | lbs_deb_scan("is_network_compatible() WPA: wpa_ie 0x%x " | |
525 | "wpa2_ie 0x%x WEP %s WPA %s WPA2 %s " | |
526 | "privacy 0x%x\n", bss->wpa_ie[0], bss->rsn_ie[0], | |
527 | priv->secinfo.wep_enabled ? "e" : "d", | |
528 | priv->secinfo.WPAenabled ? "e" : "d", | |
529 | priv->secinfo.WPA2enabled ? "e" : "d", | |
530 | (bss->capability & WLAN_CAPABILITY_PRIVACY)); | |
531 | goto done; | |
532 | } | |
533 | matched = match_bss_wpa2(&priv->secinfo, bss); | |
534 | if (matched) { | |
535 | lbs_deb_scan("is_network_compatible() WPA2: wpa_ie 0x%x " | |
536 | "wpa2_ie 0x%x WEP %s WPA %s WPA2 %s " | |
537 | "privacy 0x%x\n", bss->wpa_ie[0], bss->rsn_ie[0], | |
538 | priv->secinfo.wep_enabled ? "e" : "d", | |
539 | priv->secinfo.WPAenabled ? "e" : "d", | |
540 | priv->secinfo.WPA2enabled ? "e" : "d", | |
541 | (bss->capability & WLAN_CAPABILITY_PRIVACY)); | |
542 | goto done; | |
543 | } | |
544 | matched = match_bss_dynamic_wep(&priv->secinfo, bss); | |
545 | if (matched) { | |
546 | lbs_deb_scan("is_network_compatible() dynamic WEP: " | |
547 | "wpa_ie 0x%x wpa2_ie 0x%x privacy 0x%x\n", | |
548 | bss->wpa_ie[0], bss->rsn_ie[0], | |
549 | (bss->capability & WLAN_CAPABILITY_PRIVACY)); | |
550 | goto done; | |
551 | } | |
552 | ||
553 | /* bss security settings don't match those configured on card */ | |
554 | lbs_deb_scan("is_network_compatible() FAILED: wpa_ie 0x%x " | |
555 | "wpa2_ie 0x%x WEP %s WPA %s WPA2 %s privacy 0x%x\n", | |
556 | bss->wpa_ie[0], bss->rsn_ie[0], | |
557 | priv->secinfo.wep_enabled ? "e" : "d", | |
558 | priv->secinfo.WPAenabled ? "e" : "d", | |
559 | priv->secinfo.WPA2enabled ? "e" : "d", | |
560 | (bss->capability & WLAN_CAPABILITY_PRIVACY)); | |
561 | ||
562 | done: | |
563 | lbs_deb_leave_args(LBS_DEB_SCAN, "matched: %d", matched); | |
564 | return matched; | |
565 | } | |
566 | ||
567 | /** | |
568 | * @brief This function finds a specific compatible BSSID in the scan list | |
569 | * | |
570 | * Used in association code | |
571 | * | |
572 | * @param priv A pointer to struct lbs_private | |
573 | * @param bssid BSSID to find in the scan list | |
574 | * @param mode Network mode: Infrastructure or IBSS | |
575 | * | |
576 | * @return index in BSSID list, or error return code (< 0) | |
577 | */ | |
578 | static struct bss_descriptor *lbs_find_bssid_in_list(struct lbs_private *priv, | |
579 | uint8_t *bssid, uint8_t mode) | |
580 | { | |
581 | struct bss_descriptor *iter_bss; | |
582 | struct bss_descriptor *found_bss = NULL; | |
583 | ||
584 | lbs_deb_enter(LBS_DEB_SCAN); | |
585 | ||
586 | if (!bssid) | |
587 | goto out; | |
588 | ||
589 | lbs_deb_hex(LBS_DEB_SCAN, "looking for", bssid, ETH_ALEN); | |
590 | ||
591 | /* Look through the scan table for a compatible match. The loop will | |
592 | * continue past a matched bssid that is not compatible in case there | |
593 | * is an AP with multiple SSIDs assigned to the same BSSID | |
594 | */ | |
595 | mutex_lock(&priv->lock); | |
596 | list_for_each_entry(iter_bss, &priv->network_list, list) { | |
597 | if (compare_ether_addr(iter_bss->bssid, bssid)) | |
598 | continue; /* bssid doesn't match */ | |
599 | switch (mode) { | |
600 | case IW_MODE_INFRA: | |
601 | case IW_MODE_ADHOC: | |
602 | if (!is_network_compatible(priv, iter_bss, mode)) | |
603 | break; | |
604 | found_bss = iter_bss; | |
605 | break; | |
606 | default: | |
607 | found_bss = iter_bss; | |
608 | break; | |
609 | } | |
610 | } | |
611 | mutex_unlock(&priv->lock); | |
612 | ||
613 | out: | |
614 | lbs_deb_leave_args(LBS_DEB_SCAN, "found_bss %p", found_bss); | |
615 | return found_bss; | |
616 | } | |
617 | ||
618 | /** | |
619 | * @brief This function finds ssid in ssid list. | |
620 | * | |
621 | * Used in association code | |
622 | * | |
623 | * @param priv A pointer to struct lbs_private | |
624 | * @param ssid SSID to find in the list | |
625 | * @param bssid BSSID to qualify the SSID selection (if provided) | |
626 | * @param mode Network mode: Infrastructure or IBSS | |
627 | * | |
628 | * @return index in BSSID list | |
629 | */ | |
630 | static struct bss_descriptor *lbs_find_ssid_in_list(struct lbs_private *priv, | |
631 | uint8_t *ssid, uint8_t ssid_len, | |
632 | uint8_t *bssid, uint8_t mode, | |
633 | int channel) | |
634 | { | |
635 | u32 bestrssi = 0; | |
636 | struct bss_descriptor *iter_bss = NULL; | |
637 | struct bss_descriptor *found_bss = NULL; | |
638 | struct bss_descriptor *tmp_oldest = NULL; | |
639 | ||
640 | lbs_deb_enter(LBS_DEB_SCAN); | |
641 | ||
642 | mutex_lock(&priv->lock); | |
643 | ||
644 | list_for_each_entry(iter_bss, &priv->network_list, list) { | |
645 | if (!tmp_oldest || | |
646 | (iter_bss->last_scanned < tmp_oldest->last_scanned)) | |
647 | tmp_oldest = iter_bss; | |
648 | ||
649 | if (lbs_ssid_cmp(iter_bss->ssid, iter_bss->ssid_len, | |
650 | ssid, ssid_len) != 0) | |
651 | continue; /* ssid doesn't match */ | |
652 | if (bssid && compare_ether_addr(iter_bss->bssid, bssid) != 0) | |
653 | continue; /* bssid doesn't match */ | |
654 | if ((channel > 0) && (iter_bss->channel != channel)) | |
655 | continue; /* channel doesn't match */ | |
656 | ||
657 | switch (mode) { | |
658 | case IW_MODE_INFRA: | |
659 | case IW_MODE_ADHOC: | |
660 | if (!is_network_compatible(priv, iter_bss, mode)) | |
661 | break; | |
662 | ||
663 | if (bssid) { | |
664 | /* Found requested BSSID */ | |
665 | found_bss = iter_bss; | |
666 | goto out; | |
667 | } | |
668 | ||
669 | if (SCAN_RSSI(iter_bss->rssi) > bestrssi) { | |
670 | bestrssi = SCAN_RSSI(iter_bss->rssi); | |
671 | found_bss = iter_bss; | |
672 | } | |
673 | break; | |
674 | case IW_MODE_AUTO: | |
675 | default: | |
676 | if (SCAN_RSSI(iter_bss->rssi) > bestrssi) { | |
677 | bestrssi = SCAN_RSSI(iter_bss->rssi); | |
678 | found_bss = iter_bss; | |
679 | } | |
680 | break; | |
681 | } | |
682 | } | |
683 | ||
684 | out: | |
685 | mutex_unlock(&priv->lock); | |
686 | lbs_deb_leave_args(LBS_DEB_SCAN, "found_bss %p", found_bss); | |
687 | return found_bss; | |
688 | } | |
689 | ||
69f9032d | 690 | static int assoc_helper_essid(struct lbs_private *priv, |
876c9d3a MT |
691 | struct assoc_request * assoc_req) |
692 | { | |
876c9d3a | 693 | int ret = 0; |
fcdb53db | 694 | struct bss_descriptor * bss; |
aeea0ab4 | 695 | int channel = -1; |
876c9d3a | 696 | |
9012b28a | 697 | lbs_deb_enter(LBS_DEB_ASSOC); |
876c9d3a | 698 | |
ef9a264b DW |
699 | /* FIXME: take channel into account when picking SSIDs if a channel |
700 | * is set. | |
701 | */ | |
702 | ||
aeea0ab4 DW |
703 | if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags)) |
704 | channel = assoc_req->channel; | |
705 | ||
0765af44 | 706 | lbs_deb_assoc("SSID '%s' requested\n", |
d8efea25 | 707 | escape_essid(assoc_req->ssid, assoc_req->ssid_len)); |
0dc5a290 | 708 | if (assoc_req->mode == IW_MODE_INFRA) { |
10078321 | 709 | lbs_send_specific_ssid_scan(priv, assoc_req->ssid, |
52933d81 | 710 | assoc_req->ssid_len); |
876c9d3a | 711 | |
aa21c004 | 712 | bss = lbs_find_ssid_in_list(priv, assoc_req->ssid, |
d8efea25 | 713 | assoc_req->ssid_len, NULL, IW_MODE_INFRA, channel); |
fcdb53db | 714 | if (bss != NULL) { |
e76850d6 | 715 | memcpy(&assoc_req->bss, bss, sizeof(struct bss_descriptor)); |
10078321 | 716 | ret = lbs_associate(priv, assoc_req); |
876c9d3a | 717 | } else { |
d8efea25 | 718 | lbs_deb_assoc("SSID not found; cannot associate\n"); |
876c9d3a | 719 | } |
0dc5a290 | 720 | } else if (assoc_req->mode == IW_MODE_ADHOC) { |
876c9d3a MT |
721 | /* Scan for the network, do not save previous results. Stale |
722 | * scan data will cause us to join a non-existant adhoc network | |
723 | */ | |
10078321 | 724 | lbs_send_specific_ssid_scan(priv, assoc_req->ssid, |
52933d81 | 725 | assoc_req->ssid_len); |
876c9d3a MT |
726 | |
727 | /* Search for the requested SSID in the scan table */ | |
aa21c004 | 728 | bss = lbs_find_ssid_in_list(priv, assoc_req->ssid, |
d8efea25 | 729 | assoc_req->ssid_len, NULL, IW_MODE_ADHOC, channel); |
fcdb53db | 730 | if (bss != NULL) { |
d8efea25 | 731 | lbs_deb_assoc("SSID found, will join\n"); |
e76850d6 | 732 | memcpy(&assoc_req->bss, bss, sizeof(struct bss_descriptor)); |
f5fe1fda | 733 | lbs_adhoc_join(priv, assoc_req); |
876c9d3a MT |
734 | } else { |
735 | /* else send START command */ | |
d8efea25 | 736 | lbs_deb_assoc("SSID not found, creating adhoc network\n"); |
e76850d6 | 737 | memcpy(&assoc_req->bss.ssid, &assoc_req->ssid, |
d8efea25 DW |
738 | IW_ESSID_MAX_SIZE); |
739 | assoc_req->bss.ssid_len = assoc_req->ssid_len; | |
f5fe1fda | 740 | lbs_adhoc_start(priv, assoc_req); |
876c9d3a | 741 | } |
876c9d3a MT |
742 | } |
743 | ||
9012b28a | 744 | lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret); |
876c9d3a MT |
745 | return ret; |
746 | } | |
747 | ||
748 | ||
69f9032d | 749 | static int assoc_helper_bssid(struct lbs_private *priv, |
876c9d3a MT |
750 | struct assoc_request * assoc_req) |
751 | { | |
fcdb53db DW |
752 | int ret = 0; |
753 | struct bss_descriptor * bss; | |
876c9d3a | 754 | |
e174961c | 755 | lbs_deb_enter_args(LBS_DEB_ASSOC, "BSSID %pM", assoc_req->bssid); |
876c9d3a MT |
756 | |
757 | /* Search for index position in list for requested MAC */ | |
aa21c004 | 758 | bss = lbs_find_bssid_in_list(priv, assoc_req->bssid, |
876c9d3a | 759 | assoc_req->mode); |
fcdb53db | 760 | if (bss == NULL) { |
e174961c JB |
761 | lbs_deb_assoc("ASSOC: WAP: BSSID %pM not found, " |
762 | "cannot associate.\n", assoc_req->bssid); | |
876c9d3a MT |
763 | goto out; |
764 | } | |
765 | ||
e76850d6 | 766 | memcpy(&assoc_req->bss, bss, sizeof(struct bss_descriptor)); |
0dc5a290 | 767 | if (assoc_req->mode == IW_MODE_INFRA) { |
10078321 HS |
768 | ret = lbs_associate(priv, assoc_req); |
769 | lbs_deb_assoc("ASSOC: lbs_associate(bssid) returned %d\n", ret); | |
0dc5a290 | 770 | } else if (assoc_req->mode == IW_MODE_ADHOC) { |
f5fe1fda | 771 | lbs_adhoc_join(priv, assoc_req); |
876c9d3a | 772 | } |
876c9d3a MT |
773 | |
774 | out: | |
9012b28a | 775 | lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret); |
876c9d3a MT |
776 | return ret; |
777 | } | |
778 | ||
779 | ||
69f9032d | 780 | static int assoc_helper_associate(struct lbs_private *priv, |
876c9d3a MT |
781 | struct assoc_request * assoc_req) |
782 | { | |
783 | int ret = 0, done = 0; | |
784 | ||
0765af44 HS |
785 | lbs_deb_enter(LBS_DEB_ASSOC); |
786 | ||
876c9d3a MT |
787 | /* If we're given and 'any' BSSID, try associating based on SSID */ |
788 | ||
789 | if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) { | |
3cf20931 DW |
790 | if (compare_ether_addr(bssid_any, assoc_req->bssid) |
791 | && compare_ether_addr(bssid_off, assoc_req->bssid)) { | |
876c9d3a MT |
792 | ret = assoc_helper_bssid(priv, assoc_req); |
793 | done = 1; | |
876c9d3a MT |
794 | } |
795 | } | |
796 | ||
797 | if (!done && test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) { | |
798 | ret = assoc_helper_essid(priv, assoc_req); | |
876c9d3a MT |
799 | } |
800 | ||
0765af44 | 801 | lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret); |
876c9d3a MT |
802 | return ret; |
803 | } | |
804 | ||
805 | ||
69f9032d | 806 | static int assoc_helper_mode(struct lbs_private *priv, |
876c9d3a MT |
807 | struct assoc_request * assoc_req) |
808 | { | |
876c9d3a MT |
809 | int ret = 0; |
810 | ||
9012b28a | 811 | lbs_deb_enter(LBS_DEB_ASSOC); |
876c9d3a | 812 | |
aa21c004 | 813 | if (assoc_req->mode == priv->mode) |
9012b28a | 814 | goto done; |
876c9d3a | 815 | |
0dc5a290 | 816 | if (assoc_req->mode == IW_MODE_INFRA) { |
aa21c004 | 817 | if (priv->psstate != PS_STATE_FULL_POWER) |
10078321 | 818 | lbs_ps_wakeup(priv, CMD_OPTION_WAITFORRSP); |
aa21c004 | 819 | priv->psmode = LBS802_11POWERMODECAM; |
876c9d3a MT |
820 | } |
821 | ||
aa21c004 | 822 | priv->mode = assoc_req->mode; |
39fcf7a3 | 823 | ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_BSS_TYPE, assoc_req->mode); |
876c9d3a | 824 | |
9012b28a HS |
825 | done: |
826 | lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret); | |
876c9d3a MT |
827 | return ret; |
828 | } | |
829 | ||
69f9032d | 830 | static int assoc_helper_channel(struct lbs_private *priv, |
ef9a264b DW |
831 | struct assoc_request * assoc_req) |
832 | { | |
ef9a264b DW |
833 | int ret = 0; |
834 | ||
835 | lbs_deb_enter(LBS_DEB_ASSOC); | |
836 | ||
9f462577 | 837 | ret = lbs_update_channel(priv); |
d1a469fd | 838 | if (ret) { |
23d36eec | 839 | lbs_deb_assoc("ASSOC: channel: error getting channel.\n"); |
d1a469fd | 840 | goto done; |
ef9a264b DW |
841 | } |
842 | ||
aa21c004 | 843 | if (assoc_req->channel == priv->curbssparams.channel) |
ef9a264b DW |
844 | goto done; |
845 | ||
8642f1f0 | 846 | if (priv->mesh_dev) { |
86062134 DW |
847 | /* Change mesh channel first; 21.p21 firmware won't let |
848 | you change channel otherwise (even though it'll return | |
849 | an error to this */ | |
edaea5ce JC |
850 | lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_STOP, |
851 | assoc_req->channel); | |
8642f1f0 DW |
852 | } |
853 | ||
ef9a264b | 854 | lbs_deb_assoc("ASSOC: channel: %d -> %d\n", |
86062134 | 855 | priv->curbssparams.channel, assoc_req->channel); |
ef9a264b | 856 | |
2dd4b262 DW |
857 | ret = lbs_set_channel(priv, assoc_req->channel); |
858 | if (ret < 0) | |
23d36eec | 859 | lbs_deb_assoc("ASSOC: channel: error setting channel.\n"); |
ef9a264b | 860 | |
2dd4b262 DW |
861 | /* FIXME: shouldn't need to grab the channel _again_ after setting |
862 | * it since the firmware is supposed to return the new channel, but | |
863 | * whatever... */ | |
9f462577 | 864 | ret = lbs_update_channel(priv); |
d1a469fd | 865 | if (ret) { |
23d36eec | 866 | lbs_deb_assoc("ASSOC: channel: error getting channel.\n"); |
d1a469fd DW |
867 | goto done; |
868 | } | |
ef9a264b | 869 | |
aa21c004 | 870 | if (assoc_req->channel != priv->curbssparams.channel) { |
88ae2915 | 871 | lbs_deb_assoc("ASSOC: channel: failed to update channel to %d\n", |
ef9a264b | 872 | assoc_req->channel); |
8642f1f0 | 873 | goto restore_mesh; |
ef9a264b DW |
874 | } |
875 | ||
876 | if ( assoc_req->secinfo.wep_enabled | |
877 | && (assoc_req->wep_keys[0].len | |
878 | || assoc_req->wep_keys[1].len | |
879 | || assoc_req->wep_keys[2].len | |
880 | || assoc_req->wep_keys[3].len)) { | |
881 | /* Make sure WEP keys are re-sent to firmware */ | |
882 | set_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags); | |
883 | } | |
884 | ||
885 | /* Must restart/rejoin adhoc networks after channel change */ | |
23d36eec | 886 | set_bit(ASSOC_FLAG_SSID, &assoc_req->flags); |
ef9a264b | 887 | |
8642f1f0 DW |
888 | restore_mesh: |
889 | if (priv->mesh_dev) | |
edaea5ce JC |
890 | lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START, |
891 | priv->curbssparams.channel); | |
8642f1f0 DW |
892 | |
893 | done: | |
ef9a264b DW |
894 | lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret); |
895 | return ret; | |
896 | } | |
897 | ||
898 | ||
69f9032d | 899 | static int assoc_helper_wep_keys(struct lbs_private *priv, |
f70dd451 | 900 | struct assoc_request *assoc_req) |
876c9d3a | 901 | { |
876c9d3a MT |
902 | int i; |
903 | int ret = 0; | |
904 | ||
9012b28a | 905 | lbs_deb_enter(LBS_DEB_ASSOC); |
876c9d3a MT |
906 | |
907 | /* Set or remove WEP keys */ | |
f70dd451 DW |
908 | if (assoc_req->wep_keys[0].len || assoc_req->wep_keys[1].len || |
909 | assoc_req->wep_keys[2].len || assoc_req->wep_keys[3].len) | |
910 | ret = lbs_cmd_802_11_set_wep(priv, CMD_ACT_ADD, assoc_req); | |
911 | else | |
912 | ret = lbs_cmd_802_11_set_wep(priv, CMD_ACT_REMOVE, assoc_req); | |
876c9d3a MT |
913 | |
914 | if (ret) | |
915 | goto out; | |
916 | ||
917 | /* enable/disable the MAC's WEP packet filter */ | |
889c05bd | 918 | if (assoc_req->secinfo.wep_enabled) |
d9e9778c | 919 | priv->mac_control |= CMD_ACT_MAC_WEP_ENABLE; |
876c9d3a | 920 | else |
d9e9778c | 921 | priv->mac_control &= ~CMD_ACT_MAC_WEP_ENABLE; |
f70dd451 | 922 | |
c97329e2 | 923 | lbs_set_mac_control(priv); |
876c9d3a | 924 | |
aa21c004 | 925 | mutex_lock(&priv->lock); |
876c9d3a | 926 | |
aa21c004 | 927 | /* Copy WEP keys into priv wep key fields */ |
876c9d3a | 928 | for (i = 0; i < 4; i++) { |
aa21c004 | 929 | memcpy(&priv->wep_keys[i], &assoc_req->wep_keys[i], |
f70dd451 | 930 | sizeof(struct enc_key)); |
876c9d3a | 931 | } |
aa21c004 | 932 | priv->wep_tx_keyidx = assoc_req->wep_tx_keyidx; |
876c9d3a | 933 | |
aa21c004 | 934 | mutex_unlock(&priv->lock); |
876c9d3a MT |
935 | |
936 | out: | |
9012b28a | 937 | lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret); |
876c9d3a MT |
938 | return ret; |
939 | } | |
940 | ||
69f9032d | 941 | static int assoc_helper_secinfo(struct lbs_private *priv, |
876c9d3a MT |
942 | struct assoc_request * assoc_req) |
943 | { | |
876c9d3a | 944 | int ret = 0; |
4f59abf1 DW |
945 | uint16_t do_wpa; |
946 | uint16_t rsn = 0; | |
876c9d3a | 947 | |
9012b28a | 948 | lbs_deb_enter(LBS_DEB_ASSOC); |
876c9d3a | 949 | |
aa21c004 | 950 | memcpy(&priv->secinfo, &assoc_req->secinfo, |
10078321 | 951 | sizeof(struct lbs_802_11_security)); |
876c9d3a | 952 | |
c97329e2 | 953 | lbs_set_mac_control(priv); |
876c9d3a | 954 | |
18c96c34 DW |
955 | /* If RSN is already enabled, don't try to enable it again, since |
956 | * ENABLE_RSN resets internal state machines and will clobber the | |
957 | * 4-way WPA handshake. | |
958 | */ | |
959 | ||
960 | /* Get RSN enabled/disabled */ | |
4f59abf1 | 961 | ret = lbs_cmd_802_11_enable_rsn(priv, CMD_ACT_GET, &rsn); |
18c96c34 | 962 | if (ret) { |
23d36eec | 963 | lbs_deb_assoc("Failed to get RSN status: %d\n", ret); |
18c96c34 DW |
964 | goto out; |
965 | } | |
966 | ||
967 | /* Don't re-enable RSN if it's already enabled */ | |
4f59abf1 | 968 | do_wpa = assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled; |
18c96c34 DW |
969 | if (do_wpa == rsn) |
970 | goto out; | |
971 | ||
972 | /* Set RSN enabled/disabled */ | |
4f59abf1 | 973 | ret = lbs_cmd_802_11_enable_rsn(priv, CMD_ACT_SET, &do_wpa); |
90a42210 DW |
974 | |
975 | out: | |
9012b28a | 976 | lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret); |
876c9d3a MT |
977 | return ret; |
978 | } | |
979 | ||
980 | ||
69f9032d | 981 | static int assoc_helper_wpa_keys(struct lbs_private *priv, |
876c9d3a MT |
982 | struct assoc_request * assoc_req) |
983 | { | |
984 | int ret = 0; | |
2bcde51d | 985 | unsigned int flags = assoc_req->flags; |
876c9d3a | 986 | |
9012b28a | 987 | lbs_deb_enter(LBS_DEB_ASSOC); |
876c9d3a | 988 | |
2bcde51d DW |
989 | /* Work around older firmware bug where WPA unicast and multicast |
990 | * keys must be set independently. Seen in SDIO parts with firmware | |
991 | * version 5.0.11p0. | |
992 | */ | |
876c9d3a | 993 | |
2bcde51d DW |
994 | if (test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags)) { |
995 | clear_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags); | |
9e1228d0 | 996 | ret = lbs_cmd_802_11_key_material(priv, CMD_ACT_SET, assoc_req); |
2bcde51d DW |
997 | assoc_req->flags = flags; |
998 | } | |
999 | ||
1000 | if (ret) | |
1001 | goto out; | |
1002 | ||
1003 | if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags)) { | |
1004 | clear_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags); | |
1005 | ||
9e1228d0 | 1006 | ret = lbs_cmd_802_11_key_material(priv, CMD_ACT_SET, assoc_req); |
2bcde51d DW |
1007 | assoc_req->flags = flags; |
1008 | } | |
1009 | ||
1010 | out: | |
9012b28a | 1011 | lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret); |
876c9d3a MT |
1012 | return ret; |
1013 | } | |
1014 | ||
1015 | ||
69f9032d | 1016 | static int assoc_helper_wpa_ie(struct lbs_private *priv, |
876c9d3a MT |
1017 | struct assoc_request * assoc_req) |
1018 | { | |
876c9d3a MT |
1019 | int ret = 0; |
1020 | ||
9012b28a | 1021 | lbs_deb_enter(LBS_DEB_ASSOC); |
876c9d3a MT |
1022 | |
1023 | if (assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled) { | |
aa21c004 DW |
1024 | memcpy(&priv->wpa_ie, &assoc_req->wpa_ie, assoc_req->wpa_ie_len); |
1025 | priv->wpa_ie_len = assoc_req->wpa_ie_len; | |
876c9d3a | 1026 | } else { |
aa21c004 DW |
1027 | memset(&priv->wpa_ie, 0, MAX_WPA_IE_LEN); |
1028 | priv->wpa_ie_len = 0; | |
876c9d3a MT |
1029 | } |
1030 | ||
9012b28a | 1031 | lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret); |
876c9d3a MT |
1032 | return ret; |
1033 | } | |
1034 | ||
1035 | ||
aa21c004 | 1036 | static int should_deauth_infrastructure(struct lbs_private *priv, |
876c9d3a MT |
1037 | struct assoc_request * assoc_req) |
1038 | { | |
0765af44 HS |
1039 | int ret = 0; |
1040 | ||
aa21c004 | 1041 | if (priv->connect_status != LBS_CONNECTED) |
876c9d3a MT |
1042 | return 0; |
1043 | ||
52507c20 | 1044 | lbs_deb_enter(LBS_DEB_ASSOC); |
876c9d3a | 1045 | if (test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) { |
0765af44 HS |
1046 | lbs_deb_assoc("Deauthenticating due to new SSID\n"); |
1047 | ret = 1; | |
1048 | goto out; | |
876c9d3a MT |
1049 | } |
1050 | ||
1051 | if (test_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags)) { | |
aa21c004 | 1052 | if (priv->secinfo.auth_mode != assoc_req->secinfo.auth_mode) { |
0765af44 HS |
1053 | lbs_deb_assoc("Deauthenticating due to new security\n"); |
1054 | ret = 1; | |
1055 | goto out; | |
876c9d3a MT |
1056 | } |
1057 | } | |
1058 | ||
1059 | if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) { | |
0765af44 HS |
1060 | lbs_deb_assoc("Deauthenticating due to new BSSID\n"); |
1061 | ret = 1; | |
1062 | goto out; | |
876c9d3a MT |
1063 | } |
1064 | ||
fff47f10 | 1065 | if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags)) { |
0765af44 HS |
1066 | lbs_deb_assoc("Deauthenticating due to channel switch\n"); |
1067 | ret = 1; | |
1068 | goto out; | |
fff47f10 LCCR |
1069 | } |
1070 | ||
876c9d3a MT |
1071 | /* FIXME: deal with 'auto' mode somehow */ |
1072 | if (test_bit(ASSOC_FLAG_MODE, &assoc_req->flags)) { | |
0765af44 HS |
1073 | if (assoc_req->mode != IW_MODE_INFRA) { |
1074 | lbs_deb_assoc("Deauthenticating due to leaving " | |
1075 | "infra mode\n"); | |
1076 | ret = 1; | |
1077 | goto out; | |
1078 | } | |
876c9d3a MT |
1079 | } |
1080 | ||
0765af44 HS |
1081 | out: |
1082 | lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret); | |
52507c20 | 1083 | return ret; |
876c9d3a MT |
1084 | } |
1085 | ||
1086 | ||
aa21c004 | 1087 | static int should_stop_adhoc(struct lbs_private *priv, |
876c9d3a MT |
1088 | struct assoc_request * assoc_req) |
1089 | { | |
0765af44 HS |
1090 | lbs_deb_enter(LBS_DEB_ASSOC); |
1091 | ||
aa21c004 | 1092 | if (priv->connect_status != LBS_CONNECTED) |
876c9d3a MT |
1093 | return 0; |
1094 | ||
aa21c004 DW |
1095 | if (lbs_ssid_cmp(priv->curbssparams.ssid, |
1096 | priv->curbssparams.ssid_len, | |
d8efea25 | 1097 | assoc_req->ssid, assoc_req->ssid_len) != 0) |
876c9d3a MT |
1098 | return 1; |
1099 | ||
1100 | /* FIXME: deal with 'auto' mode somehow */ | |
1101 | if (test_bit(ASSOC_FLAG_MODE, &assoc_req->flags)) { | |
0dc5a290 | 1102 | if (assoc_req->mode != IW_MODE_ADHOC) |
876c9d3a MT |
1103 | return 1; |
1104 | } | |
1105 | ||
ef9a264b | 1106 | if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags)) { |
aa21c004 | 1107 | if (assoc_req->channel != priv->curbssparams.channel) |
ef9a264b DW |
1108 | return 1; |
1109 | } | |
1110 | ||
0765af44 | 1111 | lbs_deb_leave(LBS_DEB_ASSOC); |
876c9d3a MT |
1112 | return 0; |
1113 | } | |
1114 | ||
1115 | ||
245bf20f HS |
1116 | /** |
1117 | * @brief This function finds the best SSID in the Scan List | |
1118 | * | |
1119 | * Search the scan table for the best SSID that also matches the current | |
1120 | * adapter network preference (infrastructure or adhoc) | |
1121 | * | |
1122 | * @param priv A pointer to struct lbs_private | |
1123 | * | |
1124 | * @return index in BSSID list | |
1125 | */ | |
1126 | static struct bss_descriptor *lbs_find_best_ssid_in_list( | |
1127 | struct lbs_private *priv, uint8_t mode) | |
1128 | { | |
1129 | uint8_t bestrssi = 0; | |
1130 | struct bss_descriptor *iter_bss; | |
1131 | struct bss_descriptor *best_bss = NULL; | |
1132 | ||
1133 | lbs_deb_enter(LBS_DEB_SCAN); | |
1134 | ||
1135 | mutex_lock(&priv->lock); | |
1136 | ||
1137 | list_for_each_entry(iter_bss, &priv->network_list, list) { | |
1138 | switch (mode) { | |
1139 | case IW_MODE_INFRA: | |
1140 | case IW_MODE_ADHOC: | |
1141 | if (!is_network_compatible(priv, iter_bss, mode)) | |
1142 | break; | |
1143 | if (SCAN_RSSI(iter_bss->rssi) <= bestrssi) | |
1144 | break; | |
1145 | bestrssi = SCAN_RSSI(iter_bss->rssi); | |
1146 | best_bss = iter_bss; | |
1147 | break; | |
1148 | case IW_MODE_AUTO: | |
1149 | default: | |
1150 | if (SCAN_RSSI(iter_bss->rssi) <= bestrssi) | |
1151 | break; | |
1152 | bestrssi = SCAN_RSSI(iter_bss->rssi); | |
1153 | best_bss = iter_bss; | |
1154 | break; | |
1155 | } | |
1156 | } | |
1157 | ||
1158 | mutex_unlock(&priv->lock); | |
1159 | lbs_deb_leave_args(LBS_DEB_SCAN, "best_bss %p", best_bss); | |
1160 | return best_bss; | |
1161 | } | |
1162 | ||
1163 | /** | |
1164 | * @brief Find the best AP | |
1165 | * | |
1166 | * Used from association worker. | |
1167 | * | |
1168 | * @param priv A pointer to struct lbs_private structure | |
1169 | * @param pSSID A pointer to AP's ssid | |
1170 | * | |
1171 | * @return 0--success, otherwise--fail | |
1172 | */ | |
1173 | static int lbs_find_best_network_ssid(struct lbs_private *priv, | |
1174 | uint8_t *out_ssid, uint8_t *out_ssid_len, uint8_t preferred_mode, | |
1175 | uint8_t *out_mode) | |
1176 | { | |
1177 | int ret = -1; | |
1178 | struct bss_descriptor *found; | |
1179 | ||
1180 | lbs_deb_enter(LBS_DEB_SCAN); | |
1181 | ||
1182 | priv->scan_ssid_len = 0; | |
1183 | lbs_scan_networks(priv, 1); | |
1184 | if (priv->surpriseremoved) | |
1185 | goto out; | |
1186 | ||
1187 | found = lbs_find_best_ssid_in_list(priv, preferred_mode); | |
1188 | if (found && (found->ssid_len > 0)) { | |
1189 | memcpy(out_ssid, &found->ssid, IW_ESSID_MAX_SIZE); | |
1190 | *out_ssid_len = found->ssid_len; | |
1191 | *out_mode = found->mode; | |
1192 | ret = 0; | |
1193 | } | |
1194 | ||
1195 | out: | |
1196 | lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret); | |
1197 | return ret; | |
1198 | } | |
1199 | ||
1200 | ||
10078321 | 1201 | void lbs_association_worker(struct work_struct *work) |
876c9d3a | 1202 | { |
69f9032d HS |
1203 | struct lbs_private *priv = container_of(work, struct lbs_private, |
1204 | assoc_work.work); | |
876c9d3a MT |
1205 | struct assoc_request * assoc_req = NULL; |
1206 | int ret = 0; | |
1207 | int find_any_ssid = 0; | |
1208 | ||
9012b28a | 1209 | lbs_deb_enter(LBS_DEB_ASSOC); |
876c9d3a | 1210 | |
aa21c004 DW |
1211 | mutex_lock(&priv->lock); |
1212 | assoc_req = priv->pending_assoc_req; | |
1213 | priv->pending_assoc_req = NULL; | |
1214 | priv->in_progress_assoc_req = assoc_req; | |
1215 | mutex_unlock(&priv->lock); | |
876c9d3a | 1216 | |
9012b28a HS |
1217 | if (!assoc_req) |
1218 | goto done; | |
876c9d3a | 1219 | |
0765af44 HS |
1220 | lbs_deb_assoc( |
1221 | "Association Request:\n" | |
1222 | " flags: 0x%08lx\n" | |
1223 | " SSID: '%s'\n" | |
1224 | " chann: %d\n" | |
1225 | " band: %d\n" | |
1226 | " mode: %d\n" | |
e174961c | 1227 | " BSSID: %pM\n" |
0765af44 HS |
1228 | " secinfo: %s%s%s\n" |
1229 | " auth_mode: %d\n", | |
1230 | assoc_req->flags, | |
1231 | escape_essid(assoc_req->ssid, assoc_req->ssid_len), | |
1232 | assoc_req->channel, assoc_req->band, assoc_req->mode, | |
e174961c | 1233 | assoc_req->bssid, |
0765af44 HS |
1234 | assoc_req->secinfo.WPAenabled ? " WPA" : "", |
1235 | assoc_req->secinfo.WPA2enabled ? " WPA2" : "", | |
1236 | assoc_req->secinfo.wep_enabled ? " WEP" : "", | |
1237 | assoc_req->secinfo.auth_mode); | |
876c9d3a MT |
1238 | |
1239 | /* If 'any' SSID was specified, find an SSID to associate with */ | |
1240 | if (test_bit(ASSOC_FLAG_SSID, &assoc_req->flags) | |
d8efea25 | 1241 | && !assoc_req->ssid_len) |
876c9d3a MT |
1242 | find_any_ssid = 1; |
1243 | ||
1244 | /* But don't use 'any' SSID if there's a valid locked BSSID to use */ | |
1245 | if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) { | |
3cf20931 DW |
1246 | if (compare_ether_addr(assoc_req->bssid, bssid_any) |
1247 | && compare_ether_addr(assoc_req->bssid, bssid_off)) | |
876c9d3a MT |
1248 | find_any_ssid = 0; |
1249 | } | |
1250 | ||
1251 | if (find_any_ssid) { | |
877cb0d4 | 1252 | u8 new_mode = assoc_req->mode; |
876c9d3a | 1253 | |
10078321 | 1254 | ret = lbs_find_best_network_ssid(priv, assoc_req->ssid, |
d8efea25 | 1255 | &assoc_req->ssid_len, assoc_req->mode, &new_mode); |
876c9d3a | 1256 | if (ret) { |
9012b28a | 1257 | lbs_deb_assoc("Could not find best network\n"); |
876c9d3a MT |
1258 | ret = -ENETUNREACH; |
1259 | goto out; | |
1260 | } | |
1261 | ||
1262 | /* Ensure we switch to the mode of the AP */ | |
0dc5a290 | 1263 | if (assoc_req->mode == IW_MODE_AUTO) { |
876c9d3a MT |
1264 | set_bit(ASSOC_FLAG_MODE, &assoc_req->flags); |
1265 | assoc_req->mode = new_mode; | |
1266 | } | |
1267 | } | |
1268 | ||
1269 | /* | |
1270 | * Check if the attributes being changing require deauthentication | |
1271 | * from the currently associated infrastructure access point. | |
1272 | */ | |
aa21c004 DW |
1273 | if (priv->mode == IW_MODE_INFRA) { |
1274 | if (should_deauth_infrastructure(priv, assoc_req)) { | |
191bb40e DW |
1275 | ret = lbs_cmd_80211_deauthenticate(priv, |
1276 | priv->curbssparams.bssid, | |
1277 | WLAN_REASON_DEAUTH_LEAVING); | |
876c9d3a | 1278 | if (ret) { |
9012b28a | 1279 | lbs_deb_assoc("Deauthentication due to new " |
876c9d3a MT |
1280 | "configuration request failed: %d\n", |
1281 | ret); | |
1282 | } | |
1283 | } | |
aa21c004 DW |
1284 | } else if (priv->mode == IW_MODE_ADHOC) { |
1285 | if (should_stop_adhoc(priv, assoc_req)) { | |
f5fe1fda | 1286 | ret = lbs_adhoc_stop(priv); |
876c9d3a | 1287 | if (ret) { |
9012b28a | 1288 | lbs_deb_assoc("Teardown of AdHoc network due to " |
876c9d3a MT |
1289 | "new configuration request failed: %d\n", |
1290 | ret); | |
1291 | } | |
1292 | ||
1293 | } | |
1294 | } | |
1295 | ||
1296 | /* Send the various configuration bits to the firmware */ | |
1297 | if (test_bit(ASSOC_FLAG_MODE, &assoc_req->flags)) { | |
1298 | ret = assoc_helper_mode(priv, assoc_req); | |
0765af44 | 1299 | if (ret) |
876c9d3a | 1300 | goto out; |
876c9d3a MT |
1301 | } |
1302 | ||
ef9a264b DW |
1303 | if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags)) { |
1304 | ret = assoc_helper_channel(priv, assoc_req); | |
0765af44 | 1305 | if (ret) |
ef9a264b | 1306 | goto out; |
ef9a264b DW |
1307 | } |
1308 | ||
876c9d3a MT |
1309 | if ( test_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags) |
1310 | || test_bit(ASSOC_FLAG_WEP_TX_KEYIDX, &assoc_req->flags)) { | |
1311 | ret = assoc_helper_wep_keys(priv, assoc_req); | |
0765af44 | 1312 | if (ret) |
876c9d3a | 1313 | goto out; |
876c9d3a MT |
1314 | } |
1315 | ||
1316 | if (test_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags)) { | |
1317 | ret = assoc_helper_secinfo(priv, assoc_req); | |
0765af44 | 1318 | if (ret) |
876c9d3a | 1319 | goto out; |
876c9d3a MT |
1320 | } |
1321 | ||
1322 | if (test_bit(ASSOC_FLAG_WPA_IE, &assoc_req->flags)) { | |
1323 | ret = assoc_helper_wpa_ie(priv, assoc_req); | |
0765af44 | 1324 | if (ret) |
876c9d3a | 1325 | goto out; |
876c9d3a MT |
1326 | } |
1327 | ||
1328 | if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags) | |
1329 | || test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags)) { | |
1330 | ret = assoc_helper_wpa_keys(priv, assoc_req); | |
0765af44 | 1331 | if (ret) |
876c9d3a | 1332 | goto out; |
876c9d3a MT |
1333 | } |
1334 | ||
1335 | /* SSID/BSSID should be the _last_ config option set, because they | |
1336 | * trigger the association attempt. | |
1337 | */ | |
1338 | if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags) | |
1339 | || test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) { | |
1340 | int success = 1; | |
1341 | ||
1342 | ret = assoc_helper_associate(priv, assoc_req); | |
1343 | if (ret) { | |
91843463 | 1344 | lbs_deb_assoc("ASSOC: association unsuccessful: %d\n", |
876c9d3a MT |
1345 | ret); |
1346 | success = 0; | |
1347 | } | |
1348 | ||
aa21c004 | 1349 | if (priv->connect_status != LBS_CONNECTED) { |
91843463 HS |
1350 | lbs_deb_assoc("ASSOC: association unsuccessful, " |
1351 | "not connected\n"); | |
876c9d3a MT |
1352 | success = 0; |
1353 | } | |
1354 | ||
1355 | if (success) { | |
e174961c JB |
1356 | lbs_deb_assoc("associated to %pM\n", |
1357 | priv->curbssparams.bssid); | |
10078321 | 1358 | lbs_prepare_and_send_command(priv, |
0aef64d7 DW |
1359 | CMD_802_11_RSSI, |
1360 | 0, CMD_OPTION_WAITFORRSP, 0, NULL); | |
876c9d3a | 1361 | } else { |
876c9d3a MT |
1362 | ret = -1; |
1363 | } | |
1364 | } | |
1365 | ||
1366 | out: | |
1367 | if (ret) { | |
9012b28a | 1368 | lbs_deb_assoc("ASSOC: reconfiguration attempt unsuccessful: %d\n", |
876c9d3a MT |
1369 | ret); |
1370 | } | |
e76850d6 | 1371 | |
aa21c004 DW |
1372 | mutex_lock(&priv->lock); |
1373 | priv->in_progress_assoc_req = NULL; | |
1374 | mutex_unlock(&priv->lock); | |
876c9d3a | 1375 | kfree(assoc_req); |
9012b28a HS |
1376 | |
1377 | done: | |
1378 | lbs_deb_leave(LBS_DEB_ASSOC); | |
876c9d3a MT |
1379 | } |
1380 | ||
1381 | ||
1382 | /* | |
1383 | * Caller MUST hold any necessary locks | |
1384 | */ | |
aa21c004 | 1385 | struct assoc_request *lbs_get_association_request(struct lbs_private *priv) |
876c9d3a MT |
1386 | { |
1387 | struct assoc_request * assoc_req; | |
1388 | ||
0765af44 | 1389 | lbs_deb_enter(LBS_DEB_ASSOC); |
aa21c004 DW |
1390 | if (!priv->pending_assoc_req) { |
1391 | priv->pending_assoc_req = kzalloc(sizeof(struct assoc_request), | |
e76850d6 | 1392 | GFP_KERNEL); |
aa21c004 | 1393 | if (!priv->pending_assoc_req) { |
876c9d3a MT |
1394 | lbs_pr_info("Not enough memory to allocate association" |
1395 | " request!\n"); | |
1396 | return NULL; | |
1397 | } | |
1398 | } | |
1399 | ||
1400 | /* Copy current configuration attributes to the association request, | |
1401 | * but don't overwrite any that are already set. | |
1402 | */ | |
aa21c004 | 1403 | assoc_req = priv->pending_assoc_req; |
876c9d3a | 1404 | if (!test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) { |
aa21c004 | 1405 | memcpy(&assoc_req->ssid, &priv->curbssparams.ssid, |
d8efea25 | 1406 | IW_ESSID_MAX_SIZE); |
aa21c004 | 1407 | assoc_req->ssid_len = priv->curbssparams.ssid_len; |
876c9d3a MT |
1408 | } |
1409 | ||
1410 | if (!test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags)) | |
aa21c004 | 1411 | assoc_req->channel = priv->curbssparams.channel; |
876c9d3a | 1412 | |
e76850d6 | 1413 | if (!test_bit(ASSOC_FLAG_BAND, &assoc_req->flags)) |
aa21c004 | 1414 | assoc_req->band = priv->curbssparams.band; |
e76850d6 | 1415 | |
876c9d3a | 1416 | if (!test_bit(ASSOC_FLAG_MODE, &assoc_req->flags)) |
aa21c004 | 1417 | assoc_req->mode = priv->mode; |
876c9d3a MT |
1418 | |
1419 | if (!test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) { | |
aa21c004 | 1420 | memcpy(&assoc_req->bssid, priv->curbssparams.bssid, |
876c9d3a MT |
1421 | ETH_ALEN); |
1422 | } | |
1423 | ||
1424 | if (!test_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags)) { | |
1425 | int i; | |
1426 | for (i = 0; i < 4; i++) { | |
aa21c004 | 1427 | memcpy(&assoc_req->wep_keys[i], &priv->wep_keys[i], |
1443b653 | 1428 | sizeof(struct enc_key)); |
876c9d3a MT |
1429 | } |
1430 | } | |
1431 | ||
1432 | if (!test_bit(ASSOC_FLAG_WEP_TX_KEYIDX, &assoc_req->flags)) | |
aa21c004 | 1433 | assoc_req->wep_tx_keyidx = priv->wep_tx_keyidx; |
876c9d3a MT |
1434 | |
1435 | if (!test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags)) { | |
aa21c004 | 1436 | memcpy(&assoc_req->wpa_mcast_key, &priv->wpa_mcast_key, |
1443b653 | 1437 | sizeof(struct enc_key)); |
876c9d3a MT |
1438 | } |
1439 | ||
1440 | if (!test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags)) { | |
aa21c004 | 1441 | memcpy(&assoc_req->wpa_unicast_key, &priv->wpa_unicast_key, |
1443b653 | 1442 | sizeof(struct enc_key)); |
876c9d3a MT |
1443 | } |
1444 | ||
1445 | if (!test_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags)) { | |
aa21c004 | 1446 | memcpy(&assoc_req->secinfo, &priv->secinfo, |
10078321 | 1447 | sizeof(struct lbs_802_11_security)); |
876c9d3a MT |
1448 | } |
1449 | ||
1450 | if (!test_bit(ASSOC_FLAG_WPA_IE, &assoc_req->flags)) { | |
aa21c004 | 1451 | memcpy(&assoc_req->wpa_ie, &priv->wpa_ie, |
876c9d3a | 1452 | MAX_WPA_IE_LEN); |
aa21c004 | 1453 | assoc_req->wpa_ie_len = priv->wpa_ie_len; |
876c9d3a MT |
1454 | } |
1455 | ||
0765af44 | 1456 | lbs_deb_leave(LBS_DEB_ASSOC); |
876c9d3a MT |
1457 | return assoc_req; |
1458 | } | |
697900ac HS |
1459 | |
1460 | ||
697900ac HS |
1461 | /** |
1462 | * @brief This function prepares command of authenticate. | |
1463 | * | |
1464 | * @param priv A pointer to struct lbs_private structure | |
1465 | * @param cmd A pointer to cmd_ds_command structure | |
1466 | * @param pdata_buf Void cast of pointer to a BSSID to authenticate with | |
1467 | * | |
1468 | * @return 0 or -1 | |
1469 | */ | |
1470 | int lbs_cmd_80211_authenticate(struct lbs_private *priv, | |
1471 | struct cmd_ds_command *cmd, | |
1472 | void *pdata_buf) | |
1473 | { | |
1474 | struct cmd_ds_802_11_authenticate *pauthenticate = &cmd->params.auth; | |
1475 | int ret = -1; | |
1476 | u8 *bssid = pdata_buf; | |
697900ac HS |
1477 | |
1478 | lbs_deb_enter(LBS_DEB_JOIN); | |
1479 | ||
1480 | cmd->command = cpu_to_le16(CMD_802_11_AUTHENTICATE); | |
1481 | cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_authenticate) | |
1482 | + S_DS_GEN); | |
1483 | ||
1484 | /* translate auth mode to 802.11 defined wire value */ | |
1485 | switch (priv->secinfo.auth_mode) { | |
1486 | case IW_AUTH_ALG_OPEN_SYSTEM: | |
1487 | pauthenticate->authtype = 0x00; | |
1488 | break; | |
1489 | case IW_AUTH_ALG_SHARED_KEY: | |
1490 | pauthenticate->authtype = 0x01; | |
1491 | break; | |
1492 | case IW_AUTH_ALG_LEAP: | |
1493 | pauthenticate->authtype = 0x80; | |
1494 | break; | |
1495 | default: | |
1496 | lbs_deb_join("AUTH_CMD: invalid auth alg 0x%X\n", | |
1497 | priv->secinfo.auth_mode); | |
1498 | goto out; | |
1499 | } | |
1500 | ||
1501 | memcpy(pauthenticate->macaddr, bssid, ETH_ALEN); | |
1502 | ||
e174961c JB |
1503 | lbs_deb_join("AUTH_CMD: BSSID %pM, auth 0x%x\n", |
1504 | bssid, pauthenticate->authtype); | |
697900ac HS |
1505 | ret = 0; |
1506 | ||
1507 | out: | |
1508 | lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret); | |
1509 | return ret; | |
1510 | } | |
1511 | ||
191bb40e DW |
1512 | /** |
1513 | * @brief Deauthenticate from a specific BSS | |
1514 | * | |
1515 | * @param priv A pointer to struct lbs_private structure | |
1516 | * @param bssid The specific BSS to deauthenticate from | |
1517 | * @param reason The 802.11 sec. 7.3.1.7 Reason Code for deauthenticating | |
1518 | * | |
1519 | * @return 0 on success, error on failure | |
1520 | */ | |
1521 | int lbs_cmd_80211_deauthenticate(struct lbs_private *priv, u8 bssid[ETH_ALEN], | |
1522 | u16 reason) | |
697900ac | 1523 | { |
191bb40e DW |
1524 | struct cmd_ds_802_11_deauthenticate cmd; |
1525 | int ret; | |
697900ac HS |
1526 | |
1527 | lbs_deb_enter(LBS_DEB_JOIN); | |
1528 | ||
191bb40e DW |
1529 | memset(&cmd, 0, sizeof(cmd)); |
1530 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); | |
1531 | memcpy(cmd.macaddr, &bssid[0], ETH_ALEN); | |
1532 | cmd.reasoncode = cpu_to_le16(reason); | |
697900ac | 1533 | |
191bb40e | 1534 | ret = lbs_cmd_with_response(priv, CMD_802_11_DEAUTHENTICATE, &cmd); |
697900ac | 1535 | |
191bb40e DW |
1536 | /* Clean up everything even if there was an error; can't assume that |
1537 | * we're still authenticated to the AP after trying to deauth. | |
1538 | */ | |
1539 | lbs_mac_event_disconnected(priv); | |
697900ac HS |
1540 | |
1541 | lbs_deb_leave(LBS_DEB_JOIN); | |
191bb40e | 1542 | return ret; |
697900ac HS |
1543 | } |
1544 | ||
1545 | int lbs_cmd_80211_associate(struct lbs_private *priv, | |
1546 | struct cmd_ds_command *cmd, void *pdata_buf) | |
1547 | { | |
1548 | struct cmd_ds_802_11_associate *passo = &cmd->params.associate; | |
1549 | int ret = 0; | |
1550 | struct assoc_request *assoc_req = pdata_buf; | |
1551 | struct bss_descriptor *bss = &assoc_req->bss; | |
1552 | u8 *pos; | |
1553 | u16 tmpcap, tmplen; | |
1554 | struct mrvlietypes_ssidparamset *ssid; | |
1555 | struct mrvlietypes_phyparamset *phy; | |
1556 | struct mrvlietypes_ssparamset *ss; | |
1557 | struct mrvlietypes_ratesparamset *rates; | |
1558 | struct mrvlietypes_rsnparamset *rsn; | |
1559 | ||
1560 | lbs_deb_enter(LBS_DEB_ASSOC); | |
1561 | ||
1562 | pos = (u8 *) passo; | |
1563 | ||
1564 | if (!priv) { | |
1565 | ret = -1; | |
1566 | goto done; | |
1567 | } | |
1568 | ||
1569 | cmd->command = cpu_to_le16(CMD_802_11_ASSOCIATE); | |
1570 | ||
1571 | memcpy(passo->peerstaaddr, bss->bssid, sizeof(passo->peerstaaddr)); | |
1572 | pos += sizeof(passo->peerstaaddr); | |
1573 | ||
1574 | /* set the listen interval */ | |
1575 | passo->listeninterval = cpu_to_le16(MRVDRV_DEFAULT_LISTEN_INTERVAL); | |
1576 | ||
1577 | pos += sizeof(passo->capability); | |
1578 | pos += sizeof(passo->listeninterval); | |
1579 | pos += sizeof(passo->bcnperiod); | |
1580 | pos += sizeof(passo->dtimperiod); | |
1581 | ||
1582 | ssid = (struct mrvlietypes_ssidparamset *) pos; | |
1583 | ssid->header.type = cpu_to_le16(TLV_TYPE_SSID); | |
1584 | tmplen = bss->ssid_len; | |
1585 | ssid->header.len = cpu_to_le16(tmplen); | |
1586 | memcpy(ssid->ssid, bss->ssid, tmplen); | |
1587 | pos += sizeof(ssid->header) + tmplen; | |
1588 | ||
1589 | phy = (struct mrvlietypes_phyparamset *) pos; | |
1590 | phy->header.type = cpu_to_le16(TLV_TYPE_PHY_DS); | |
1591 | tmplen = sizeof(phy->fh_ds.dsparamset); | |
1592 | phy->header.len = cpu_to_le16(tmplen); | |
1593 | memcpy(&phy->fh_ds.dsparamset, | |
1594 | &bss->phyparamset.dsparamset.currentchan, | |
1595 | tmplen); | |
1596 | pos += sizeof(phy->header) + tmplen; | |
1597 | ||
1598 | ss = (struct mrvlietypes_ssparamset *) pos; | |
1599 | ss->header.type = cpu_to_le16(TLV_TYPE_CF); | |
1600 | tmplen = sizeof(ss->cf_ibss.cfparamset); | |
1601 | ss->header.len = cpu_to_le16(tmplen); | |
1602 | pos += sizeof(ss->header) + tmplen; | |
1603 | ||
1604 | rates = (struct mrvlietypes_ratesparamset *) pos; | |
1605 | rates->header.type = cpu_to_le16(TLV_TYPE_RATES); | |
1606 | memcpy(&rates->rates, &bss->rates, MAX_RATES); | |
1607 | tmplen = MAX_RATES; | |
1608 | if (get_common_rates(priv, rates->rates, &tmplen)) { | |
1609 | ret = -1; | |
1610 | goto done; | |
1611 | } | |
1612 | pos += sizeof(rates->header) + tmplen; | |
1613 | rates->header.len = cpu_to_le16(tmplen); | |
1614 | lbs_deb_assoc("ASSOC_CMD: num rates %u\n", tmplen); | |
1615 | ||
1616 | /* Copy the infra. association rates into Current BSS state structure */ | |
1617 | memset(&priv->curbssparams.rates, 0, sizeof(priv->curbssparams.rates)); | |
1618 | memcpy(&priv->curbssparams.rates, &rates->rates, tmplen); | |
1619 | ||
1620 | /* Set MSB on basic rates as the firmware requires, but _after_ | |
1621 | * copying to current bss rates. | |
1622 | */ | |
1623 | lbs_set_basic_rate_flags(rates->rates, tmplen); | |
1624 | ||
1625 | if (assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled) { | |
1626 | rsn = (struct mrvlietypes_rsnparamset *) pos; | |
1627 | /* WPA_IE or WPA2_IE */ | |
1628 | rsn->header.type = cpu_to_le16((u16) assoc_req->wpa_ie[0]); | |
1629 | tmplen = (u16) assoc_req->wpa_ie[1]; | |
1630 | rsn->header.len = cpu_to_le16(tmplen); | |
1631 | memcpy(rsn->rsnie, &assoc_req->wpa_ie[2], tmplen); | |
1632 | lbs_deb_hex(LBS_DEB_JOIN, "ASSOC_CMD: RSN IE", (u8 *) rsn, | |
1633 | sizeof(rsn->header) + tmplen); | |
1634 | pos += sizeof(rsn->header) + tmplen; | |
1635 | } | |
1636 | ||
1637 | /* update curbssparams */ | |
1638 | priv->curbssparams.channel = bss->phyparamset.dsparamset.currentchan; | |
1639 | ||
1640 | if (lbs_parse_dnld_countryinfo_11d(priv, bss)) { | |
1641 | ret = -1; | |
1642 | goto done; | |
1643 | } | |
1644 | ||
1645 | cmd->size = cpu_to_le16((u16) (pos - (u8 *) passo) + S_DS_GEN); | |
1646 | ||
1647 | /* set the capability info */ | |
1648 | tmpcap = (bss->capability & CAPINFO_MASK); | |
1649 | if (bss->mode == IW_MODE_INFRA) | |
1650 | tmpcap |= WLAN_CAPABILITY_ESS; | |
1651 | passo->capability = cpu_to_le16(tmpcap); | |
1652 | lbs_deb_assoc("ASSOC_CMD: capability 0x%04x\n", tmpcap); | |
1653 | ||
1654 | done: | |
1655 | lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret); | |
1656 | return ret; | |
1657 | } | |
1658 | ||
697900ac HS |
1659 | int lbs_ret_80211_associate(struct lbs_private *priv, |
1660 | struct cmd_ds_command *resp) | |
1661 | { | |
1662 | int ret = 0; | |
1663 | union iwreq_data wrqu; | |
1664 | struct ieeetypes_assocrsp *passocrsp; | |
1665 | struct bss_descriptor *bss; | |
1666 | u16 status_code; | |
1667 | ||
1668 | lbs_deb_enter(LBS_DEB_ASSOC); | |
1669 | ||
1670 | if (!priv->in_progress_assoc_req) { | |
1671 | lbs_deb_assoc("ASSOC_RESP: no in-progress assoc request\n"); | |
1672 | ret = -1; | |
1673 | goto done; | |
1674 | } | |
1675 | bss = &priv->in_progress_assoc_req->bss; | |
1676 | ||
1677 | passocrsp = (struct ieeetypes_assocrsp *) &resp->params; | |
1678 | ||
1679 | /* | |
1680 | * Older FW versions map the IEEE 802.11 Status Code in the association | |
1681 | * response to the following values returned in passocrsp->statuscode: | |
1682 | * | |
1683 | * IEEE Status Code Marvell Status Code | |
1684 | * 0 -> 0x0000 ASSOC_RESULT_SUCCESS | |
1685 | * 13 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED | |
1686 | * 14 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED | |
1687 | * 15 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED | |
1688 | * 16 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED | |
1689 | * others -> 0x0003 ASSOC_RESULT_REFUSED | |
1690 | * | |
1691 | * Other response codes: | |
1692 | * 0x0001 -> ASSOC_RESULT_INVALID_PARAMETERS (unused) | |
1693 | * 0x0002 -> ASSOC_RESULT_TIMEOUT (internal timer expired waiting for | |
1694 | * association response from the AP) | |
1695 | */ | |
1696 | ||
1697 | status_code = le16_to_cpu(passocrsp->statuscode); | |
1698 | switch (status_code) { | |
1699 | case 0x00: | |
1700 | break; | |
1701 | case 0x01: | |
1702 | lbs_deb_assoc("ASSOC_RESP: invalid parameters\n"); | |
1703 | break; | |
1704 | case 0x02: | |
1705 | lbs_deb_assoc("ASSOC_RESP: internal timer " | |
1706 | "expired while waiting for the AP\n"); | |
1707 | break; | |
1708 | case 0x03: | |
1709 | lbs_deb_assoc("ASSOC_RESP: association " | |
1710 | "refused by AP\n"); | |
1711 | break; | |
1712 | case 0x04: | |
1713 | lbs_deb_assoc("ASSOC_RESP: authentication " | |
1714 | "refused by AP\n"); | |
1715 | break; | |
1716 | default: | |
1717 | lbs_deb_assoc("ASSOC_RESP: failure reason 0x%02x " | |
1718 | " unknown\n", status_code); | |
1719 | break; | |
1720 | } | |
1721 | ||
1722 | if (status_code) { | |
1723 | lbs_mac_event_disconnected(priv); | |
1724 | ret = -1; | |
1725 | goto done; | |
1726 | } | |
1727 | ||
1728 | lbs_deb_hex(LBS_DEB_ASSOC, "ASSOC_RESP", (void *)&resp->params, | |
1729 | le16_to_cpu(resp->size) - S_DS_GEN); | |
1730 | ||
1731 | /* Send a Media Connected event, according to the Spec */ | |
1732 | priv->connect_status = LBS_CONNECTED; | |
1733 | ||
1734 | /* Update current SSID and BSSID */ | |
1735 | memcpy(&priv->curbssparams.ssid, &bss->ssid, IW_ESSID_MAX_SIZE); | |
1736 | priv->curbssparams.ssid_len = bss->ssid_len; | |
1737 | memcpy(priv->curbssparams.bssid, bss->bssid, ETH_ALEN); | |
1738 | ||
1739 | priv->SNR[TYPE_RXPD][TYPE_AVG] = 0; | |
1740 | priv->NF[TYPE_RXPD][TYPE_AVG] = 0; | |
1741 | ||
1742 | memset(priv->rawSNR, 0x00, sizeof(priv->rawSNR)); | |
1743 | memset(priv->rawNF, 0x00, sizeof(priv->rawNF)); | |
1744 | priv->nextSNRNF = 0; | |
1745 | priv->numSNRNF = 0; | |
1746 | ||
1747 | netif_carrier_on(priv->dev); | |
1748 | if (!priv->tx_pending_len) | |
1749 | netif_wake_queue(priv->dev); | |
1750 | ||
1751 | memcpy(wrqu.ap_addr.sa_data, priv->curbssparams.bssid, ETH_ALEN); | |
1752 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
1753 | wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL); | |
1754 | ||
1755 | done: | |
1756 | lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret); | |
1757 | return ret; | |
1758 | } | |
1759 | ||
f5fe1fda | 1760 | static int lbs_adhoc_post(struct lbs_private *priv, struct cmd_header *resp) |
697900ac HS |
1761 | { |
1762 | int ret = 0; | |
1763 | u16 command = le16_to_cpu(resp->command); | |
1764 | u16 result = le16_to_cpu(resp->result); | |
f5fe1fda | 1765 | struct cmd_ds_802_11_ad_hoc_result *adhoc_resp; |
697900ac HS |
1766 | union iwreq_data wrqu; |
1767 | struct bss_descriptor *bss; | |
697900ac HS |
1768 | |
1769 | lbs_deb_enter(LBS_DEB_JOIN); | |
1770 | ||
f5fe1fda | 1771 | adhoc_resp = (struct cmd_ds_802_11_ad_hoc_result *) resp; |
697900ac HS |
1772 | |
1773 | if (!priv->in_progress_assoc_req) { | |
1774 | lbs_deb_join("ADHOC_RESP: no in-progress association " | |
1775 | "request\n"); | |
1776 | ret = -1; | |
1777 | goto done; | |
1778 | } | |
1779 | bss = &priv->in_progress_assoc_req->bss; | |
1780 | ||
1781 | /* | |
1782 | * Join result code 0 --> SUCCESS | |
1783 | */ | |
1784 | if (result) { | |
f5fe1fda | 1785 | lbs_deb_join("ADHOC_RESP: failed (result 0x%X)\n", result); |
697900ac HS |
1786 | if (priv->connect_status == LBS_CONNECTED) |
1787 | lbs_mac_event_disconnected(priv); | |
1788 | ret = -1; | |
1789 | goto done; | |
1790 | } | |
1791 | ||
697900ac HS |
1792 | /* Send a Media Connected event, according to the Spec */ |
1793 | priv->connect_status = LBS_CONNECTED; | |
1794 | ||
1795 | if (command == CMD_RET(CMD_802_11_AD_HOC_START)) { | |
1796 | /* Update the created network descriptor with the new BSSID */ | |
f5fe1fda | 1797 | memcpy(bss->bssid, adhoc_resp->bssid, ETH_ALEN); |
697900ac HS |
1798 | } |
1799 | ||
1800 | /* Set the BSSID from the joined/started descriptor */ | |
1801 | memcpy(&priv->curbssparams.bssid, bss->bssid, ETH_ALEN); | |
1802 | ||
1803 | /* Set the new SSID to current SSID */ | |
1804 | memcpy(&priv->curbssparams.ssid, &bss->ssid, IW_ESSID_MAX_SIZE); | |
1805 | priv->curbssparams.ssid_len = bss->ssid_len; | |
1806 | ||
1807 | netif_carrier_on(priv->dev); | |
1808 | if (!priv->tx_pending_len) | |
1809 | netif_wake_queue(priv->dev); | |
1810 | ||
1811 | memset(&wrqu, 0, sizeof(wrqu)); | |
1812 | memcpy(wrqu.ap_addr.sa_data, priv->curbssparams.bssid, ETH_ALEN); | |
1813 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
1814 | wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL); | |
1815 | ||
e174961c | 1816 | lbs_deb_join("ADHOC_RESP: Joined/started '%s', BSSID %pM, channel %d\n", |
f5fe1fda | 1817 | escape_essid(bss->ssid, bss->ssid_len), |
e174961c | 1818 | priv->curbssparams.bssid, |
f5fe1fda | 1819 | priv->curbssparams.channel); |
697900ac HS |
1820 | |
1821 | done: | |
1822 | lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret); | |
1823 | return ret; | |
1824 | } | |
1825 |