Commit | Line | Data |
---|---|---|
876c9d3a MT |
1 | /* Copyright (C) 2006, Red Hat, Inc. */ |
2 | ||
7e272fcf | 3 | #include <linux/types.h> |
3cf20931 | 4 | #include <linux/etherdevice.h> |
2c706002 JB |
5 | #include <linux/ieee80211.h> |
6 | #include <linux/if_arp.h> | |
7e272fcf | 7 | #include <net/lib80211.h> |
876c9d3a MT |
8 | |
9 | #include "assoc.h" | |
876c9d3a | 10 | #include "decl.h" |
876c9d3a | 11 | #include "host.h" |
245bf20f | 12 | #include "scan.h" |
2dd4b262 | 13 | #include "cmd.h" |
876c9d3a | 14 | |
f5fe1fda | 15 | static int lbs_adhoc_post(struct lbs_private *priv, struct cmd_header *resp); |
876c9d3a | 16 | |
5a6e0434 IH |
17 | static const u8 bssid_any[ETH_ALEN] __attribute__ ((aligned (2))) = |
18 | { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; | |
19 | static const u8 bssid_off[ETH_ALEN] __attribute__ ((aligned (2))) = | |
20 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; | |
876c9d3a | 21 | |
697900ac HS |
22 | /* The firmware needs certain bits masked out of the beacon-derviced capability |
23 | * field when associating/joining to BSSs. | |
24 | */ | |
25 | #define CAPINFO_MASK (~(0xda00)) | |
26 | ||
27 | ||
f5fe1fda DW |
28 | /** |
29 | * @brief This function finds common rates between rates and card rates. | |
30 | * | |
31 | * It will fill common rates in rates as output if found. | |
32 | * | |
33 | * NOTE: Setting the MSB of the basic rates need to be taken | |
34 | * care, either before or after calling this function | |
35 | * | |
36 | * @param priv A pointer to struct lbs_private structure | |
37 | * @param rates the buffer which keeps input and output | |
38 | * @param rates_size the size of rate1 buffer; new size of buffer on return | |
39 | * | |
40 | * @return 0 on success, or -1 on error | |
41 | */ | |
42 | static int get_common_rates(struct lbs_private *priv, | |
43 | u8 *rates, | |
44 | u16 *rates_size) | |
45 | { | |
46 | u8 *card_rates = lbs_bg_rates; | |
47 | size_t num_card_rates = sizeof(lbs_bg_rates); | |
48 | int ret = 0, i, j; | |
49 | u8 tmp[30]; | |
50 | size_t tmp_size = 0; | |
51 | ||
52 | /* For each rate in card_rates that exists in rate1, copy to tmp */ | |
53 | for (i = 0; card_rates[i] && (i < num_card_rates); i++) { | |
54 | for (j = 0; rates[j] && (j < *rates_size); j++) { | |
55 | if (rates[j] == card_rates[i]) | |
56 | tmp[tmp_size++] = card_rates[i]; | |
57 | } | |
58 | } | |
59 | ||
60 | lbs_deb_hex(LBS_DEB_JOIN, "AP rates ", rates, *rates_size); | |
61 | lbs_deb_hex(LBS_DEB_JOIN, "card rates ", card_rates, num_card_rates); | |
62 | lbs_deb_hex(LBS_DEB_JOIN, "common rates", tmp, tmp_size); | |
63 | lbs_deb_join("TX data rate 0x%02x\n", priv->cur_rate); | |
64 | ||
65 | if (!priv->enablehwauto) { | |
66 | for (i = 0; i < tmp_size; i++) { | |
67 | if (tmp[i] == priv->cur_rate) | |
68 | goto done; | |
69 | } | |
70 | lbs_pr_alert("Previously set fixed data rate %#x isn't " | |
71 | "compatible with the network.\n", priv->cur_rate); | |
72 | ret = -1; | |
73 | goto done; | |
74 | } | |
75 | ret = 0; | |
76 | ||
77 | done: | |
78 | memset(rates, 0, *rates_size); | |
79 | *rates_size = min_t(int, tmp_size, *rates_size); | |
80 | memcpy(rates, tmp, *rates_size); | |
81 | return ret; | |
82 | } | |
83 | ||
84 | ||
85 | /** | |
86 | * @brief Sets the MSB on basic rates as the firmware requires | |
87 | * | |
88 | * Scan through an array and set the MSB for basic data rates. | |
89 | * | |
90 | * @param rates buffer of data rates | |
91 | * @param len size of buffer | |
92 | */ | |
93 | static void lbs_set_basic_rate_flags(u8 *rates, size_t len) | |
94 | { | |
95 | int i; | |
96 | ||
97 | for (i = 0; i < len; i++) { | |
98 | if (rates[i] == 0x02 || rates[i] == 0x04 || | |
99 | rates[i] == 0x0b || rates[i] == 0x16) | |
100 | rates[i] |= 0x80; | |
101 | } | |
102 | } | |
103 | ||
697900ac HS |
104 | |
105 | /** | |
106 | * @brief Associate to a specific BSS discovered in a scan | |
107 | * | |
108 | * @param priv A pointer to struct lbs_private structure | |
d5db2dfa | 109 | * @param assoc_req The association request describing the BSS to associate with |
697900ac HS |
110 | * |
111 | * @return 0-success, otherwise fail | |
112 | */ | |
113 | static int lbs_associate(struct lbs_private *priv, | |
114 | struct assoc_request *assoc_req) | |
115 | { | |
116 | int ret; | |
d5db2dfa | 117 | u8 preamble = RADIO_PREAMBLE_LONG; |
697900ac HS |
118 | |
119 | lbs_deb_enter(LBS_DEB_ASSOC); | |
120 | ||
121 | ret = lbs_prepare_and_send_command(priv, CMD_802_11_AUTHENTICATE, | |
122 | 0, CMD_OPTION_WAITFORRSP, | |
123 | 0, assoc_req->bss.bssid); | |
697900ac | 124 | if (ret) |
d5db2dfa | 125 | goto out; |
697900ac | 126 | |
d5db2dfa | 127 | /* Use short preamble only when both the BSS and firmware support it */ |
697900ac HS |
128 | if ((priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) && |
129 | (assoc_req->bss.capability & WLAN_CAPABILITY_SHORT_PREAMBLE)) | |
d5db2dfa | 130 | preamble = RADIO_PREAMBLE_SHORT; |
697900ac | 131 | |
d5db2dfa DW |
132 | ret = lbs_set_radio(priv, preamble, 1); |
133 | if (ret) | |
134 | goto out; | |
697900ac HS |
135 | |
136 | ret = lbs_prepare_and_send_command(priv, CMD_802_11_ASSOCIATE, | |
137 | 0, CMD_OPTION_WAITFORRSP, 0, assoc_req); | |
138 | ||
d5db2dfa | 139 | out: |
697900ac HS |
140 | lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret); |
141 | return ret; | |
142 | } | |
143 | ||
144 | /** | |
145 | * @brief Join an adhoc network found in a previous scan | |
146 | * | |
147 | * @param priv A pointer to struct lbs_private structure | |
d5db2dfa | 148 | * @param assoc_req The association request describing the BSS to join |
697900ac | 149 | * |
f5fe1fda | 150 | * @return 0 on success, error on failure |
697900ac | 151 | */ |
f5fe1fda | 152 | static int lbs_adhoc_join(struct lbs_private *priv, |
697900ac HS |
153 | struct assoc_request *assoc_req) |
154 | { | |
f5fe1fda | 155 | struct cmd_ds_802_11_ad_hoc_join cmd; |
697900ac | 156 | struct bss_descriptor *bss = &assoc_req->bss; |
d5db2dfa | 157 | u8 preamble = RADIO_PREAMBLE_LONG; |
9387b7ca | 158 | DECLARE_SSID_BUF(ssid); |
f5fe1fda DW |
159 | u16 ratesize = 0; |
160 | int ret = 0; | |
d5db2dfa DW |
161 | |
162 | lbs_deb_enter(LBS_DEB_ASSOC); | |
697900ac HS |
163 | |
164 | lbs_deb_join("current SSID '%s', ssid length %u\n", | |
9387b7ca | 165 | print_ssid(ssid, priv->curbssparams.ssid, |
697900ac HS |
166 | priv->curbssparams.ssid_len), |
167 | priv->curbssparams.ssid_len); | |
168 | lbs_deb_join("requested ssid '%s', ssid length %u\n", | |
9387b7ca | 169 | print_ssid(ssid, bss->ssid, bss->ssid_len), |
697900ac HS |
170 | bss->ssid_len); |
171 | ||
172 | /* check if the requested SSID is already joined */ | |
173 | if (priv->curbssparams.ssid_len && | |
174 | !lbs_ssid_cmp(priv->curbssparams.ssid, | |
175 | priv->curbssparams.ssid_len, | |
176 | bss->ssid, bss->ssid_len) && | |
177 | (priv->mode == IW_MODE_ADHOC) && | |
178 | (priv->connect_status == LBS_CONNECTED)) { | |
179 | union iwreq_data wrqu; | |
180 | ||
181 | lbs_deb_join("ADHOC_J_CMD: New ad-hoc SSID is the same as " | |
182 | "current, not attempting to re-join"); | |
183 | ||
184 | /* Send the re-association event though, because the association | |
185 | * request really was successful, even if just a null-op. | |
186 | */ | |
187 | memset(&wrqu, 0, sizeof(wrqu)); | |
188 | memcpy(wrqu.ap_addr.sa_data, priv->curbssparams.bssid, | |
189 | ETH_ALEN); | |
190 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
191 | wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL); | |
192 | goto out; | |
193 | } | |
194 | ||
d5db2dfa DW |
195 | /* Use short preamble only when both the BSS and firmware support it */ |
196 | if ((priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) && | |
197 | (bss->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)) { | |
697900ac | 198 | lbs_deb_join("AdhocJoin: Short preamble\n"); |
d5db2dfa | 199 | preamble = RADIO_PREAMBLE_SHORT; |
697900ac HS |
200 | } |
201 | ||
d5db2dfa DW |
202 | ret = lbs_set_radio(priv, preamble, 1); |
203 | if (ret) | |
204 | goto out; | |
697900ac HS |
205 | |
206 | lbs_deb_join("AdhocJoin: channel = %d\n", assoc_req->channel); | |
207 | lbs_deb_join("AdhocJoin: band = %c\n", assoc_req->band); | |
208 | ||
209 | priv->adhoccreate = 0; | |
f5fe1fda | 210 | priv->curbssparams.channel = bss->channel; |
697900ac | 211 | |
f5fe1fda DW |
212 | /* Build the join command */ |
213 | memset(&cmd, 0, sizeof(cmd)); | |
214 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); | |
215 | ||
216 | cmd.bss.type = CMD_BSS_TYPE_IBSS; | |
217 | cmd.bss.beaconperiod = cpu_to_le16(bss->beaconperiod); | |
218 | ||
219 | memcpy(&cmd.bss.bssid, &bss->bssid, ETH_ALEN); | |
220 | memcpy(&cmd.bss.ssid, &bss->ssid, bss->ssid_len); | |
221 | ||
5fd164e9 | 222 | memcpy(&cmd.bss.ds, &bss->phy.ds, sizeof(struct ieee_ie_ds_param_set)); |
f5fe1fda | 223 | |
5fd164e9 DW |
224 | memcpy(&cmd.bss.ibss, &bss->ss.ibss, |
225 | sizeof(struct ieee_ie_ibss_param_set)); | |
f5fe1fda DW |
226 | |
227 | cmd.bss.capability = cpu_to_le16(bss->capability & CAPINFO_MASK); | |
228 | lbs_deb_join("ADHOC_J_CMD: tmpcap=%4X CAPINFO_MASK=%4X\n", | |
229 | bss->capability, CAPINFO_MASK); | |
230 | ||
231 | /* information on BSSID descriptor passed to FW */ | |
e174961c JB |
232 | lbs_deb_join("ADHOC_J_CMD: BSSID = %pM, SSID = '%s'\n", |
233 | cmd.bss.bssid, cmd.bss.ssid); | |
f5fe1fda DW |
234 | |
235 | /* Only v8 and below support setting these */ | |
236 | if (priv->fwrelease < 0x09000000) { | |
237 | /* failtimeout */ | |
238 | cmd.failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT); | |
239 | /* probedelay */ | |
240 | cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME); | |
241 | } | |
242 | ||
243 | /* Copy Data rates from the rates recorded in scan response */ | |
244 | memset(cmd.bss.rates, 0, sizeof(cmd.bss.rates)); | |
245 | ratesize = min_t(u16, sizeof(cmd.bss.rates), MAX_RATES); | |
246 | memcpy(cmd.bss.rates, bss->rates, ratesize); | |
247 | if (get_common_rates(priv, cmd.bss.rates, &ratesize)) { | |
248 | lbs_deb_join("ADHOC_JOIN: get_common_rates returned error.\n"); | |
249 | ret = -1; | |
250 | goto out; | |
251 | } | |
252 | ||
253 | /* Copy the ad-hoc creation rates into Current BSS state structure */ | |
254 | memset(&priv->curbssparams.rates, 0, sizeof(priv->curbssparams.rates)); | |
255 | memcpy(&priv->curbssparams.rates, cmd.bss.rates, ratesize); | |
256 | ||
257 | /* Set MSB on basic rates as the firmware requires, but _after_ | |
258 | * copying to current bss rates. | |
259 | */ | |
260 | lbs_set_basic_rate_flags(cmd.bss.rates, ratesize); | |
261 | ||
5fd164e9 | 262 | cmd.bss.ibss.atimwindow = bss->atimwindow; |
f5fe1fda DW |
263 | |
264 | if (assoc_req->secinfo.wep_enabled) { | |
265 | u16 tmp = le16_to_cpu(cmd.bss.capability); | |
266 | tmp |= WLAN_CAPABILITY_PRIVACY; | |
267 | cmd.bss.capability = cpu_to_le16(tmp); | |
268 | } | |
269 | ||
270 | if (priv->psmode == LBS802_11POWERMODEMAX_PSP) { | |
271 | __le32 local_ps_mode = cpu_to_le32(LBS802_11POWERMODECAM); | |
272 | ||
273 | /* wake up first */ | |
274 | ret = lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE, | |
275 | CMD_ACT_SET, 0, 0, | |
276 | &local_ps_mode); | |
277 | if (ret) { | |
278 | ret = -1; | |
279 | goto out; | |
280 | } | |
281 | } | |
282 | ||
283 | if (lbs_parse_dnld_countryinfo_11d(priv, bss)) { | |
284 | ret = -1; | |
285 | goto out; | |
286 | } | |
287 | ||
288 | ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_JOIN, &cmd); | |
289 | if (ret == 0) | |
290 | ret = lbs_adhoc_post(priv, (struct cmd_header *) &cmd); | |
697900ac HS |
291 | |
292 | out: | |
d5db2dfa | 293 | lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret); |
697900ac HS |
294 | return ret; |
295 | } | |
296 | ||
297 | /** | |
298 | * @brief Start an Adhoc Network | |
299 | * | |
300 | * @param priv A pointer to struct lbs_private structure | |
d5db2dfa | 301 | * @param assoc_req The association request describing the BSS to start |
f5fe1fda DW |
302 | * |
303 | * @return 0 on success, error on failure | |
697900ac | 304 | */ |
f5fe1fda | 305 | static int lbs_adhoc_start(struct lbs_private *priv, |
697900ac HS |
306 | struct assoc_request *assoc_req) |
307 | { | |
f5fe1fda | 308 | struct cmd_ds_802_11_ad_hoc_start cmd; |
d5db2dfa | 309 | u8 preamble = RADIO_PREAMBLE_LONG; |
f5fe1fda DW |
310 | size_t ratesize = 0; |
311 | u16 tmpcap = 0; | |
312 | int ret = 0; | |
9387b7ca | 313 | DECLARE_SSID_BUF(ssid); |
d5db2dfa DW |
314 | |
315 | lbs_deb_enter(LBS_DEB_ASSOC); | |
697900ac | 316 | |
697900ac | 317 | if (priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) { |
f5fe1fda | 318 | lbs_deb_join("ADHOC_START: Will use short preamble\n"); |
d5db2dfa | 319 | preamble = RADIO_PREAMBLE_SHORT; |
697900ac HS |
320 | } |
321 | ||
d5db2dfa DW |
322 | ret = lbs_set_radio(priv, preamble, 1); |
323 | if (ret) | |
324 | goto out; | |
697900ac | 325 | |
f5fe1fda DW |
326 | /* Build the start command */ |
327 | memset(&cmd, 0, sizeof(cmd)); | |
328 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); | |
697900ac | 329 | |
f5fe1fda DW |
330 | memcpy(cmd.ssid, assoc_req->ssid, assoc_req->ssid_len); |
331 | ||
332 | lbs_deb_join("ADHOC_START: SSID '%s', ssid length %u\n", | |
9387b7ca | 333 | print_ssid(ssid, assoc_req->ssid, assoc_req->ssid_len), |
f5fe1fda DW |
334 | assoc_req->ssid_len); |
335 | ||
336 | cmd.bsstype = CMD_BSS_TYPE_IBSS; | |
337 | ||
338 | if (priv->beacon_period == 0) | |
339 | priv->beacon_period = MRVDRV_BEACON_INTERVAL; | |
340 | cmd.beaconperiod = cpu_to_le16(priv->beacon_period); | |
341 | ||
342 | WARN_ON(!assoc_req->channel); | |
343 | ||
344 | /* set Physical parameter set */ | |
75b6a61a DW |
345 | cmd.ds.header.id = WLAN_EID_DS_PARAMS; |
346 | cmd.ds.header.len = 1; | |
5fd164e9 | 347 | cmd.ds.channel = assoc_req->channel; |
f5fe1fda DW |
348 | |
349 | /* set IBSS parameter set */ | |
75b6a61a DW |
350 | cmd.ibss.header.id = WLAN_EID_IBSS_PARAMS; |
351 | cmd.ibss.header.len = 2; | |
5fd164e9 | 352 | cmd.ibss.atimwindow = cpu_to_le16(0); |
f5fe1fda DW |
353 | |
354 | /* set capability info */ | |
355 | tmpcap = WLAN_CAPABILITY_IBSS; | |
356 | if (assoc_req->secinfo.wep_enabled) { | |
357 | lbs_deb_join("ADHOC_START: WEP enabled, setting privacy on\n"); | |
358 | tmpcap |= WLAN_CAPABILITY_PRIVACY; | |
359 | } else | |
360 | lbs_deb_join("ADHOC_START: WEP disabled, setting privacy off\n"); | |
361 | ||
362 | cmd.capability = cpu_to_le16(tmpcap); | |
363 | ||
364 | /* Only v8 and below support setting probe delay */ | |
365 | if (priv->fwrelease < 0x09000000) | |
366 | cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME); | |
367 | ||
368 | ratesize = min(sizeof(cmd.rates), sizeof(lbs_bg_rates)); | |
369 | memcpy(cmd.rates, lbs_bg_rates, ratesize); | |
370 | ||
371 | /* Copy the ad-hoc creating rates into Current BSS state structure */ | |
372 | memset(&priv->curbssparams.rates, 0, sizeof(priv->curbssparams.rates)); | |
373 | memcpy(&priv->curbssparams.rates, &cmd.rates, ratesize); | |
374 | ||
375 | /* Set MSB on basic rates as the firmware requires, but _after_ | |
376 | * copying to current bss rates. | |
377 | */ | |
378 | lbs_set_basic_rate_flags(cmd.rates, ratesize); | |
379 | ||
380 | lbs_deb_join("ADHOC_START: rates=%02x %02x %02x %02x\n", | |
381 | cmd.rates[0], cmd.rates[1], cmd.rates[2], cmd.rates[3]); | |
382 | ||
383 | if (lbs_create_dnld_countryinfo_11d(priv)) { | |
384 | lbs_deb_join("ADHOC_START: dnld_countryinfo_11d failed\n"); | |
385 | ret = -1; | |
386 | goto out; | |
387 | } | |
388 | ||
389 | lbs_deb_join("ADHOC_START: Starting Ad-Hoc BSS on channel %d, band %d\n", | |
390 | assoc_req->channel, assoc_req->band); | |
391 | ||
392 | priv->adhoccreate = 1; | |
393 | priv->mode = IW_MODE_ADHOC; | |
394 | ||
395 | ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_START, &cmd); | |
396 | if (ret == 0) | |
397 | ret = lbs_adhoc_post(priv, (struct cmd_header *) &cmd); | |
697900ac | 398 | |
d5db2dfa DW |
399 | out: |
400 | lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret); | |
697900ac HS |
401 | return ret; |
402 | } | |
403 | ||
f5fe1fda DW |
404 | /** |
405 | * @brief Stop and Ad-Hoc network and exit Ad-Hoc mode | |
406 | * | |
407 | * @param priv A pointer to struct lbs_private structure | |
408 | * @return 0 on success, or an error | |
409 | */ | |
410 | int lbs_adhoc_stop(struct lbs_private *priv) | |
697900ac | 411 | { |
f5fe1fda DW |
412 | struct cmd_ds_802_11_ad_hoc_stop cmd; |
413 | int ret; | |
414 | ||
415 | lbs_deb_enter(LBS_DEB_JOIN); | |
416 | ||
417 | memset(&cmd, 0, sizeof (cmd)); | |
418 | cmd.hdr.size = cpu_to_le16 (sizeof (cmd)); | |
419 | ||
420 | ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_STOP, &cmd); | |
421 | ||
422 | /* Clean up everything even if there was an error */ | |
423 | lbs_mac_event_disconnected(priv); | |
424 | ||
425 | lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret); | |
426 | return ret; | |
697900ac | 427 | } |
e76850d6 | 428 | |
245bf20f HS |
429 | static inline int match_bss_no_security(struct lbs_802_11_security *secinfo, |
430 | struct bss_descriptor *match_bss) | |
431 | { | |
432 | if (!secinfo->wep_enabled && !secinfo->WPAenabled | |
433 | && !secinfo->WPA2enabled | |
2c706002 JB |
434 | && match_bss->wpa_ie[0] != WLAN_EID_GENERIC |
435 | && match_bss->rsn_ie[0] != WLAN_EID_RSN | |
245bf20f HS |
436 | && !(match_bss->capability & WLAN_CAPABILITY_PRIVACY)) |
437 | return 1; | |
438 | else | |
439 | return 0; | |
440 | } | |
441 | ||
442 | static inline int match_bss_static_wep(struct lbs_802_11_security *secinfo, | |
443 | struct bss_descriptor *match_bss) | |
444 | { | |
445 | if (secinfo->wep_enabled && !secinfo->WPAenabled | |
446 | && !secinfo->WPA2enabled | |
447 | && (match_bss->capability & WLAN_CAPABILITY_PRIVACY)) | |
448 | return 1; | |
449 | else | |
450 | return 0; | |
451 | } | |
452 | ||
453 | static inline int match_bss_wpa(struct lbs_802_11_security *secinfo, | |
454 | struct bss_descriptor *match_bss) | |
455 | { | |
456 | if (!secinfo->wep_enabled && secinfo->WPAenabled | |
2c706002 | 457 | && (match_bss->wpa_ie[0] == WLAN_EID_GENERIC) |
245bf20f HS |
458 | /* privacy bit may NOT be set in some APs like LinkSys WRT54G |
459 | && (match_bss->capability & WLAN_CAPABILITY_PRIVACY) */ | |
460 | ) | |
461 | return 1; | |
462 | else | |
463 | return 0; | |
464 | } | |
465 | ||
466 | static inline int match_bss_wpa2(struct lbs_802_11_security *secinfo, | |
467 | struct bss_descriptor *match_bss) | |
468 | { | |
469 | if (!secinfo->wep_enabled && secinfo->WPA2enabled && | |
2c706002 | 470 | (match_bss->rsn_ie[0] == WLAN_EID_RSN) |
245bf20f HS |
471 | /* privacy bit may NOT be set in some APs like LinkSys WRT54G |
472 | (match_bss->capability & WLAN_CAPABILITY_PRIVACY) */ | |
473 | ) | |
474 | return 1; | |
475 | else | |
476 | return 0; | |
477 | } | |
478 | ||
479 | static inline int match_bss_dynamic_wep(struct lbs_802_11_security *secinfo, | |
480 | struct bss_descriptor *match_bss) | |
481 | { | |
482 | if (!secinfo->wep_enabled && !secinfo->WPAenabled | |
483 | && !secinfo->WPA2enabled | |
2c706002 JB |
484 | && (match_bss->wpa_ie[0] != WLAN_EID_GENERIC) |
485 | && (match_bss->rsn_ie[0] != WLAN_EID_RSN) | |
245bf20f HS |
486 | && (match_bss->capability & WLAN_CAPABILITY_PRIVACY)) |
487 | return 1; | |
488 | else | |
489 | return 0; | |
490 | } | |
491 | ||
492 | /** | |
493 | * @brief Check if a scanned network compatible with the driver settings | |
494 | * | |
495 | * WEP WPA WPA2 ad-hoc encrypt Network | |
496 | * enabled enabled enabled AES mode privacy WPA WPA2 Compatible | |
497 | * 0 0 0 0 NONE 0 0 0 yes No security | |
498 | * 1 0 0 0 NONE 1 0 0 yes Static WEP | |
499 | * 0 1 0 0 x 1x 1 x yes WPA | |
500 | * 0 0 1 0 x 1x x 1 yes WPA2 | |
501 | * 0 0 0 1 NONE 1 0 0 yes Ad-hoc AES | |
502 | * 0 0 0 0 !=NONE 1 0 0 yes Dynamic WEP | |
503 | * | |
504 | * | |
505 | * @param priv A pointer to struct lbs_private | |
506 | * @param index Index in scantable to check against current driver settings | |
507 | * @param mode Network mode: Infrastructure or IBSS | |
508 | * | |
509 | * @return Index in scantable, or error code if negative | |
510 | */ | |
511 | static int is_network_compatible(struct lbs_private *priv, | |
512 | struct bss_descriptor *bss, uint8_t mode) | |
513 | { | |
514 | int matched = 0; | |
515 | ||
516 | lbs_deb_enter(LBS_DEB_SCAN); | |
517 | ||
518 | if (bss->mode != mode) | |
519 | goto done; | |
520 | ||
521 | matched = match_bss_no_security(&priv->secinfo, bss); | |
522 | if (matched) | |
523 | goto done; | |
524 | matched = match_bss_static_wep(&priv->secinfo, bss); | |
525 | if (matched) | |
526 | goto done; | |
527 | matched = match_bss_wpa(&priv->secinfo, bss); | |
528 | if (matched) { | |
529 | lbs_deb_scan("is_network_compatible() WPA: wpa_ie 0x%x " | |
530 | "wpa2_ie 0x%x WEP %s WPA %s WPA2 %s " | |
531 | "privacy 0x%x\n", bss->wpa_ie[0], bss->rsn_ie[0], | |
532 | priv->secinfo.wep_enabled ? "e" : "d", | |
533 | priv->secinfo.WPAenabled ? "e" : "d", | |
534 | priv->secinfo.WPA2enabled ? "e" : "d", | |
535 | (bss->capability & WLAN_CAPABILITY_PRIVACY)); | |
536 | goto done; | |
537 | } | |
538 | matched = match_bss_wpa2(&priv->secinfo, bss); | |
539 | if (matched) { | |
540 | lbs_deb_scan("is_network_compatible() WPA2: wpa_ie 0x%x " | |
541 | "wpa2_ie 0x%x WEP %s WPA %s WPA2 %s " | |
542 | "privacy 0x%x\n", bss->wpa_ie[0], bss->rsn_ie[0], | |
543 | priv->secinfo.wep_enabled ? "e" : "d", | |
544 | priv->secinfo.WPAenabled ? "e" : "d", | |
545 | priv->secinfo.WPA2enabled ? "e" : "d", | |
546 | (bss->capability & WLAN_CAPABILITY_PRIVACY)); | |
547 | goto done; | |
548 | } | |
549 | matched = match_bss_dynamic_wep(&priv->secinfo, bss); | |
550 | if (matched) { | |
551 | lbs_deb_scan("is_network_compatible() dynamic WEP: " | |
552 | "wpa_ie 0x%x wpa2_ie 0x%x privacy 0x%x\n", | |
553 | bss->wpa_ie[0], bss->rsn_ie[0], | |
554 | (bss->capability & WLAN_CAPABILITY_PRIVACY)); | |
555 | goto done; | |
556 | } | |
557 | ||
558 | /* bss security settings don't match those configured on card */ | |
559 | lbs_deb_scan("is_network_compatible() FAILED: wpa_ie 0x%x " | |
560 | "wpa2_ie 0x%x WEP %s WPA %s WPA2 %s privacy 0x%x\n", | |
561 | bss->wpa_ie[0], bss->rsn_ie[0], | |
562 | priv->secinfo.wep_enabled ? "e" : "d", | |
563 | priv->secinfo.WPAenabled ? "e" : "d", | |
564 | priv->secinfo.WPA2enabled ? "e" : "d", | |
565 | (bss->capability & WLAN_CAPABILITY_PRIVACY)); | |
566 | ||
567 | done: | |
568 | lbs_deb_leave_args(LBS_DEB_SCAN, "matched: %d", matched); | |
569 | return matched; | |
570 | } | |
571 | ||
572 | /** | |
573 | * @brief This function finds a specific compatible BSSID in the scan list | |
574 | * | |
575 | * Used in association code | |
576 | * | |
577 | * @param priv A pointer to struct lbs_private | |
578 | * @param bssid BSSID to find in the scan list | |
579 | * @param mode Network mode: Infrastructure or IBSS | |
580 | * | |
581 | * @return index in BSSID list, or error return code (< 0) | |
582 | */ | |
583 | static struct bss_descriptor *lbs_find_bssid_in_list(struct lbs_private *priv, | |
584 | uint8_t *bssid, uint8_t mode) | |
585 | { | |
586 | struct bss_descriptor *iter_bss; | |
587 | struct bss_descriptor *found_bss = NULL; | |
588 | ||
589 | lbs_deb_enter(LBS_DEB_SCAN); | |
590 | ||
591 | if (!bssid) | |
592 | goto out; | |
593 | ||
594 | lbs_deb_hex(LBS_DEB_SCAN, "looking for", bssid, ETH_ALEN); | |
595 | ||
596 | /* Look through the scan table for a compatible match. The loop will | |
597 | * continue past a matched bssid that is not compatible in case there | |
598 | * is an AP with multiple SSIDs assigned to the same BSSID | |
599 | */ | |
600 | mutex_lock(&priv->lock); | |
601 | list_for_each_entry(iter_bss, &priv->network_list, list) { | |
602 | if (compare_ether_addr(iter_bss->bssid, bssid)) | |
603 | continue; /* bssid doesn't match */ | |
604 | switch (mode) { | |
605 | case IW_MODE_INFRA: | |
606 | case IW_MODE_ADHOC: | |
607 | if (!is_network_compatible(priv, iter_bss, mode)) | |
608 | break; | |
609 | found_bss = iter_bss; | |
610 | break; | |
611 | default: | |
612 | found_bss = iter_bss; | |
613 | break; | |
614 | } | |
615 | } | |
616 | mutex_unlock(&priv->lock); | |
617 | ||
618 | out: | |
619 | lbs_deb_leave_args(LBS_DEB_SCAN, "found_bss %p", found_bss); | |
620 | return found_bss; | |
621 | } | |
622 | ||
623 | /** | |
624 | * @brief This function finds ssid in ssid list. | |
625 | * | |
626 | * Used in association code | |
627 | * | |
628 | * @param priv A pointer to struct lbs_private | |
629 | * @param ssid SSID to find in the list | |
630 | * @param bssid BSSID to qualify the SSID selection (if provided) | |
631 | * @param mode Network mode: Infrastructure or IBSS | |
632 | * | |
633 | * @return index in BSSID list | |
634 | */ | |
635 | static struct bss_descriptor *lbs_find_ssid_in_list(struct lbs_private *priv, | |
636 | uint8_t *ssid, uint8_t ssid_len, | |
637 | uint8_t *bssid, uint8_t mode, | |
638 | int channel) | |
639 | { | |
640 | u32 bestrssi = 0; | |
641 | struct bss_descriptor *iter_bss = NULL; | |
642 | struct bss_descriptor *found_bss = NULL; | |
643 | struct bss_descriptor *tmp_oldest = NULL; | |
644 | ||
645 | lbs_deb_enter(LBS_DEB_SCAN); | |
646 | ||
647 | mutex_lock(&priv->lock); | |
648 | ||
649 | list_for_each_entry(iter_bss, &priv->network_list, list) { | |
650 | if (!tmp_oldest || | |
651 | (iter_bss->last_scanned < tmp_oldest->last_scanned)) | |
652 | tmp_oldest = iter_bss; | |
653 | ||
654 | if (lbs_ssid_cmp(iter_bss->ssid, iter_bss->ssid_len, | |
655 | ssid, ssid_len) != 0) | |
656 | continue; /* ssid doesn't match */ | |
657 | if (bssid && compare_ether_addr(iter_bss->bssid, bssid) != 0) | |
658 | continue; /* bssid doesn't match */ | |
659 | if ((channel > 0) && (iter_bss->channel != channel)) | |
660 | continue; /* channel doesn't match */ | |
661 | ||
662 | switch (mode) { | |
663 | case IW_MODE_INFRA: | |
664 | case IW_MODE_ADHOC: | |
665 | if (!is_network_compatible(priv, iter_bss, mode)) | |
666 | break; | |
667 | ||
668 | if (bssid) { | |
669 | /* Found requested BSSID */ | |
670 | found_bss = iter_bss; | |
671 | goto out; | |
672 | } | |
673 | ||
674 | if (SCAN_RSSI(iter_bss->rssi) > bestrssi) { | |
675 | bestrssi = SCAN_RSSI(iter_bss->rssi); | |
676 | found_bss = iter_bss; | |
677 | } | |
678 | break; | |
679 | case IW_MODE_AUTO: | |
680 | default: | |
681 | if (SCAN_RSSI(iter_bss->rssi) > bestrssi) { | |
682 | bestrssi = SCAN_RSSI(iter_bss->rssi); | |
683 | found_bss = iter_bss; | |
684 | } | |
685 | break; | |
686 | } | |
687 | } | |
688 | ||
689 | out: | |
690 | mutex_unlock(&priv->lock); | |
691 | lbs_deb_leave_args(LBS_DEB_SCAN, "found_bss %p", found_bss); | |
692 | return found_bss; | |
693 | } | |
694 | ||
69f9032d | 695 | static int assoc_helper_essid(struct lbs_private *priv, |
876c9d3a MT |
696 | struct assoc_request * assoc_req) |
697 | { | |
876c9d3a | 698 | int ret = 0; |
fcdb53db | 699 | struct bss_descriptor * bss; |
aeea0ab4 | 700 | int channel = -1; |
9387b7ca | 701 | DECLARE_SSID_BUF(ssid); |
876c9d3a | 702 | |
9012b28a | 703 | lbs_deb_enter(LBS_DEB_ASSOC); |
876c9d3a | 704 | |
ef9a264b DW |
705 | /* FIXME: take channel into account when picking SSIDs if a channel |
706 | * is set. | |
707 | */ | |
708 | ||
aeea0ab4 DW |
709 | if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags)) |
710 | channel = assoc_req->channel; | |
711 | ||
0765af44 | 712 | lbs_deb_assoc("SSID '%s' requested\n", |
9387b7ca | 713 | print_ssid(ssid, assoc_req->ssid, assoc_req->ssid_len)); |
0dc5a290 | 714 | if (assoc_req->mode == IW_MODE_INFRA) { |
10078321 | 715 | lbs_send_specific_ssid_scan(priv, assoc_req->ssid, |
52933d81 | 716 | assoc_req->ssid_len); |
876c9d3a | 717 | |
aa21c004 | 718 | bss = lbs_find_ssid_in_list(priv, assoc_req->ssid, |
d8efea25 | 719 | assoc_req->ssid_len, NULL, IW_MODE_INFRA, channel); |
fcdb53db | 720 | if (bss != NULL) { |
e76850d6 | 721 | memcpy(&assoc_req->bss, bss, sizeof(struct bss_descriptor)); |
10078321 | 722 | ret = lbs_associate(priv, assoc_req); |
876c9d3a | 723 | } else { |
d8efea25 | 724 | lbs_deb_assoc("SSID not found; cannot associate\n"); |
876c9d3a | 725 | } |
0dc5a290 | 726 | } else if (assoc_req->mode == IW_MODE_ADHOC) { |
876c9d3a MT |
727 | /* Scan for the network, do not save previous results. Stale |
728 | * scan data will cause us to join a non-existant adhoc network | |
729 | */ | |
10078321 | 730 | lbs_send_specific_ssid_scan(priv, assoc_req->ssid, |
52933d81 | 731 | assoc_req->ssid_len); |
876c9d3a MT |
732 | |
733 | /* Search for the requested SSID in the scan table */ | |
aa21c004 | 734 | bss = lbs_find_ssid_in_list(priv, assoc_req->ssid, |
d8efea25 | 735 | assoc_req->ssid_len, NULL, IW_MODE_ADHOC, channel); |
fcdb53db | 736 | if (bss != NULL) { |
d8efea25 | 737 | lbs_deb_assoc("SSID found, will join\n"); |
e76850d6 | 738 | memcpy(&assoc_req->bss, bss, sizeof(struct bss_descriptor)); |
f5fe1fda | 739 | lbs_adhoc_join(priv, assoc_req); |
876c9d3a MT |
740 | } else { |
741 | /* else send START command */ | |
d8efea25 | 742 | lbs_deb_assoc("SSID not found, creating adhoc network\n"); |
e76850d6 | 743 | memcpy(&assoc_req->bss.ssid, &assoc_req->ssid, |
d8efea25 DW |
744 | IW_ESSID_MAX_SIZE); |
745 | assoc_req->bss.ssid_len = assoc_req->ssid_len; | |
f5fe1fda | 746 | lbs_adhoc_start(priv, assoc_req); |
876c9d3a | 747 | } |
876c9d3a MT |
748 | } |
749 | ||
9012b28a | 750 | lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret); |
876c9d3a MT |
751 | return ret; |
752 | } | |
753 | ||
754 | ||
69f9032d | 755 | static int assoc_helper_bssid(struct lbs_private *priv, |
876c9d3a MT |
756 | struct assoc_request * assoc_req) |
757 | { | |
fcdb53db DW |
758 | int ret = 0; |
759 | struct bss_descriptor * bss; | |
876c9d3a | 760 | |
e174961c | 761 | lbs_deb_enter_args(LBS_DEB_ASSOC, "BSSID %pM", assoc_req->bssid); |
876c9d3a MT |
762 | |
763 | /* Search for index position in list for requested MAC */ | |
aa21c004 | 764 | bss = lbs_find_bssid_in_list(priv, assoc_req->bssid, |
876c9d3a | 765 | assoc_req->mode); |
fcdb53db | 766 | if (bss == NULL) { |
e174961c JB |
767 | lbs_deb_assoc("ASSOC: WAP: BSSID %pM not found, " |
768 | "cannot associate.\n", assoc_req->bssid); | |
876c9d3a MT |
769 | goto out; |
770 | } | |
771 | ||
e76850d6 | 772 | memcpy(&assoc_req->bss, bss, sizeof(struct bss_descriptor)); |
0dc5a290 | 773 | if (assoc_req->mode == IW_MODE_INFRA) { |
10078321 HS |
774 | ret = lbs_associate(priv, assoc_req); |
775 | lbs_deb_assoc("ASSOC: lbs_associate(bssid) returned %d\n", ret); | |
0dc5a290 | 776 | } else if (assoc_req->mode == IW_MODE_ADHOC) { |
f5fe1fda | 777 | lbs_adhoc_join(priv, assoc_req); |
876c9d3a | 778 | } |
876c9d3a MT |
779 | |
780 | out: | |
9012b28a | 781 | lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret); |
876c9d3a MT |
782 | return ret; |
783 | } | |
784 | ||
785 | ||
69f9032d | 786 | static int assoc_helper_associate(struct lbs_private *priv, |
876c9d3a MT |
787 | struct assoc_request * assoc_req) |
788 | { | |
789 | int ret = 0, done = 0; | |
790 | ||
0765af44 HS |
791 | lbs_deb_enter(LBS_DEB_ASSOC); |
792 | ||
876c9d3a MT |
793 | /* If we're given and 'any' BSSID, try associating based on SSID */ |
794 | ||
795 | if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) { | |
3cf20931 DW |
796 | if (compare_ether_addr(bssid_any, assoc_req->bssid) |
797 | && compare_ether_addr(bssid_off, assoc_req->bssid)) { | |
876c9d3a MT |
798 | ret = assoc_helper_bssid(priv, assoc_req); |
799 | done = 1; | |
876c9d3a MT |
800 | } |
801 | } | |
802 | ||
803 | if (!done && test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) { | |
804 | ret = assoc_helper_essid(priv, assoc_req); | |
876c9d3a MT |
805 | } |
806 | ||
0765af44 | 807 | lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret); |
876c9d3a MT |
808 | return ret; |
809 | } | |
810 | ||
811 | ||
69f9032d | 812 | static int assoc_helper_mode(struct lbs_private *priv, |
876c9d3a MT |
813 | struct assoc_request * assoc_req) |
814 | { | |
876c9d3a MT |
815 | int ret = 0; |
816 | ||
9012b28a | 817 | lbs_deb_enter(LBS_DEB_ASSOC); |
876c9d3a | 818 | |
aa21c004 | 819 | if (assoc_req->mode == priv->mode) |
9012b28a | 820 | goto done; |
876c9d3a | 821 | |
0dc5a290 | 822 | if (assoc_req->mode == IW_MODE_INFRA) { |
aa21c004 | 823 | if (priv->psstate != PS_STATE_FULL_POWER) |
10078321 | 824 | lbs_ps_wakeup(priv, CMD_OPTION_WAITFORRSP); |
aa21c004 | 825 | priv->psmode = LBS802_11POWERMODECAM; |
876c9d3a MT |
826 | } |
827 | ||
aa21c004 | 828 | priv->mode = assoc_req->mode; |
39fcf7a3 | 829 | ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_BSS_TYPE, assoc_req->mode); |
876c9d3a | 830 | |
9012b28a HS |
831 | done: |
832 | lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret); | |
876c9d3a MT |
833 | return ret; |
834 | } | |
835 | ||
69f9032d | 836 | static int assoc_helper_channel(struct lbs_private *priv, |
ef9a264b DW |
837 | struct assoc_request * assoc_req) |
838 | { | |
ef9a264b DW |
839 | int ret = 0; |
840 | ||
841 | lbs_deb_enter(LBS_DEB_ASSOC); | |
842 | ||
9f462577 | 843 | ret = lbs_update_channel(priv); |
d1a469fd | 844 | if (ret) { |
23d36eec | 845 | lbs_deb_assoc("ASSOC: channel: error getting channel.\n"); |
d1a469fd | 846 | goto done; |
ef9a264b DW |
847 | } |
848 | ||
aa21c004 | 849 | if (assoc_req->channel == priv->curbssparams.channel) |
ef9a264b DW |
850 | goto done; |
851 | ||
8642f1f0 | 852 | if (priv->mesh_dev) { |
86062134 DW |
853 | /* Change mesh channel first; 21.p21 firmware won't let |
854 | you change channel otherwise (even though it'll return | |
855 | an error to this */ | |
edaea5ce JC |
856 | lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_STOP, |
857 | assoc_req->channel); | |
8642f1f0 DW |
858 | } |
859 | ||
ef9a264b | 860 | lbs_deb_assoc("ASSOC: channel: %d -> %d\n", |
86062134 | 861 | priv->curbssparams.channel, assoc_req->channel); |
ef9a264b | 862 | |
2dd4b262 DW |
863 | ret = lbs_set_channel(priv, assoc_req->channel); |
864 | if (ret < 0) | |
23d36eec | 865 | lbs_deb_assoc("ASSOC: channel: error setting channel.\n"); |
ef9a264b | 866 | |
2dd4b262 DW |
867 | /* FIXME: shouldn't need to grab the channel _again_ after setting |
868 | * it since the firmware is supposed to return the new channel, but | |
869 | * whatever... */ | |
9f462577 | 870 | ret = lbs_update_channel(priv); |
d1a469fd | 871 | if (ret) { |
23d36eec | 872 | lbs_deb_assoc("ASSOC: channel: error getting channel.\n"); |
d1a469fd DW |
873 | goto done; |
874 | } | |
ef9a264b | 875 | |
aa21c004 | 876 | if (assoc_req->channel != priv->curbssparams.channel) { |
88ae2915 | 877 | lbs_deb_assoc("ASSOC: channel: failed to update channel to %d\n", |
ef9a264b | 878 | assoc_req->channel); |
8642f1f0 | 879 | goto restore_mesh; |
ef9a264b DW |
880 | } |
881 | ||
882 | if ( assoc_req->secinfo.wep_enabled | |
883 | && (assoc_req->wep_keys[0].len | |
884 | || assoc_req->wep_keys[1].len | |
885 | || assoc_req->wep_keys[2].len | |
886 | || assoc_req->wep_keys[3].len)) { | |
887 | /* Make sure WEP keys are re-sent to firmware */ | |
888 | set_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags); | |
889 | } | |
890 | ||
891 | /* Must restart/rejoin adhoc networks after channel change */ | |
23d36eec | 892 | set_bit(ASSOC_FLAG_SSID, &assoc_req->flags); |
ef9a264b | 893 | |
8642f1f0 DW |
894 | restore_mesh: |
895 | if (priv->mesh_dev) | |
edaea5ce JC |
896 | lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START, |
897 | priv->curbssparams.channel); | |
8642f1f0 DW |
898 | |
899 | done: | |
ef9a264b DW |
900 | lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret); |
901 | return ret; | |
902 | } | |
903 | ||
904 | ||
69f9032d | 905 | static int assoc_helper_wep_keys(struct lbs_private *priv, |
f70dd451 | 906 | struct assoc_request *assoc_req) |
876c9d3a | 907 | { |
876c9d3a MT |
908 | int i; |
909 | int ret = 0; | |
910 | ||
9012b28a | 911 | lbs_deb_enter(LBS_DEB_ASSOC); |
876c9d3a MT |
912 | |
913 | /* Set or remove WEP keys */ | |
f70dd451 DW |
914 | if (assoc_req->wep_keys[0].len || assoc_req->wep_keys[1].len || |
915 | assoc_req->wep_keys[2].len || assoc_req->wep_keys[3].len) | |
916 | ret = lbs_cmd_802_11_set_wep(priv, CMD_ACT_ADD, assoc_req); | |
917 | else | |
918 | ret = lbs_cmd_802_11_set_wep(priv, CMD_ACT_REMOVE, assoc_req); | |
876c9d3a MT |
919 | |
920 | if (ret) | |
921 | goto out; | |
922 | ||
923 | /* enable/disable the MAC's WEP packet filter */ | |
889c05bd | 924 | if (assoc_req->secinfo.wep_enabled) |
d9e9778c | 925 | priv->mac_control |= CMD_ACT_MAC_WEP_ENABLE; |
876c9d3a | 926 | else |
d9e9778c | 927 | priv->mac_control &= ~CMD_ACT_MAC_WEP_ENABLE; |
f70dd451 | 928 | |
c97329e2 | 929 | lbs_set_mac_control(priv); |
876c9d3a | 930 | |
aa21c004 | 931 | mutex_lock(&priv->lock); |
876c9d3a | 932 | |
aa21c004 | 933 | /* Copy WEP keys into priv wep key fields */ |
876c9d3a | 934 | for (i = 0; i < 4; i++) { |
aa21c004 | 935 | memcpy(&priv->wep_keys[i], &assoc_req->wep_keys[i], |
f70dd451 | 936 | sizeof(struct enc_key)); |
876c9d3a | 937 | } |
aa21c004 | 938 | priv->wep_tx_keyidx = assoc_req->wep_tx_keyidx; |
876c9d3a | 939 | |
aa21c004 | 940 | mutex_unlock(&priv->lock); |
876c9d3a MT |
941 | |
942 | out: | |
9012b28a | 943 | lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret); |
876c9d3a MT |
944 | return ret; |
945 | } | |
946 | ||
69f9032d | 947 | static int assoc_helper_secinfo(struct lbs_private *priv, |
876c9d3a MT |
948 | struct assoc_request * assoc_req) |
949 | { | |
876c9d3a | 950 | int ret = 0; |
4f59abf1 DW |
951 | uint16_t do_wpa; |
952 | uint16_t rsn = 0; | |
876c9d3a | 953 | |
9012b28a | 954 | lbs_deb_enter(LBS_DEB_ASSOC); |
876c9d3a | 955 | |
aa21c004 | 956 | memcpy(&priv->secinfo, &assoc_req->secinfo, |
10078321 | 957 | sizeof(struct lbs_802_11_security)); |
876c9d3a | 958 | |
c97329e2 | 959 | lbs_set_mac_control(priv); |
876c9d3a | 960 | |
18c96c34 DW |
961 | /* If RSN is already enabled, don't try to enable it again, since |
962 | * ENABLE_RSN resets internal state machines and will clobber the | |
963 | * 4-way WPA handshake. | |
964 | */ | |
965 | ||
966 | /* Get RSN enabled/disabled */ | |
4f59abf1 | 967 | ret = lbs_cmd_802_11_enable_rsn(priv, CMD_ACT_GET, &rsn); |
18c96c34 | 968 | if (ret) { |
23d36eec | 969 | lbs_deb_assoc("Failed to get RSN status: %d\n", ret); |
18c96c34 DW |
970 | goto out; |
971 | } | |
972 | ||
973 | /* Don't re-enable RSN if it's already enabled */ | |
4f59abf1 | 974 | do_wpa = assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled; |
18c96c34 DW |
975 | if (do_wpa == rsn) |
976 | goto out; | |
977 | ||
978 | /* Set RSN enabled/disabled */ | |
4f59abf1 | 979 | ret = lbs_cmd_802_11_enable_rsn(priv, CMD_ACT_SET, &do_wpa); |
90a42210 DW |
980 | |
981 | out: | |
9012b28a | 982 | lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret); |
876c9d3a MT |
983 | return ret; |
984 | } | |
985 | ||
986 | ||
69f9032d | 987 | static int assoc_helper_wpa_keys(struct lbs_private *priv, |
876c9d3a MT |
988 | struct assoc_request * assoc_req) |
989 | { | |
990 | int ret = 0; | |
2bcde51d | 991 | unsigned int flags = assoc_req->flags; |
876c9d3a | 992 | |
9012b28a | 993 | lbs_deb_enter(LBS_DEB_ASSOC); |
876c9d3a | 994 | |
2bcde51d DW |
995 | /* Work around older firmware bug where WPA unicast and multicast |
996 | * keys must be set independently. Seen in SDIO parts with firmware | |
997 | * version 5.0.11p0. | |
998 | */ | |
876c9d3a | 999 | |
2bcde51d DW |
1000 | if (test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags)) { |
1001 | clear_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags); | |
9e1228d0 | 1002 | ret = lbs_cmd_802_11_key_material(priv, CMD_ACT_SET, assoc_req); |
2bcde51d DW |
1003 | assoc_req->flags = flags; |
1004 | } | |
1005 | ||
1006 | if (ret) | |
1007 | goto out; | |
1008 | ||
1009 | if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags)) { | |
1010 | clear_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags); | |
1011 | ||
9e1228d0 | 1012 | ret = lbs_cmd_802_11_key_material(priv, CMD_ACT_SET, assoc_req); |
2bcde51d DW |
1013 | assoc_req->flags = flags; |
1014 | } | |
1015 | ||
1016 | out: | |
9012b28a | 1017 | lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret); |
876c9d3a MT |
1018 | return ret; |
1019 | } | |
1020 | ||
1021 | ||
69f9032d | 1022 | static int assoc_helper_wpa_ie(struct lbs_private *priv, |
876c9d3a MT |
1023 | struct assoc_request * assoc_req) |
1024 | { | |
876c9d3a MT |
1025 | int ret = 0; |
1026 | ||
9012b28a | 1027 | lbs_deb_enter(LBS_DEB_ASSOC); |
876c9d3a MT |
1028 | |
1029 | if (assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled) { | |
aa21c004 DW |
1030 | memcpy(&priv->wpa_ie, &assoc_req->wpa_ie, assoc_req->wpa_ie_len); |
1031 | priv->wpa_ie_len = assoc_req->wpa_ie_len; | |
876c9d3a | 1032 | } else { |
aa21c004 DW |
1033 | memset(&priv->wpa_ie, 0, MAX_WPA_IE_LEN); |
1034 | priv->wpa_ie_len = 0; | |
876c9d3a MT |
1035 | } |
1036 | ||
9012b28a | 1037 | lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret); |
876c9d3a MT |
1038 | return ret; |
1039 | } | |
1040 | ||
1041 | ||
aa21c004 | 1042 | static int should_deauth_infrastructure(struct lbs_private *priv, |
876c9d3a MT |
1043 | struct assoc_request * assoc_req) |
1044 | { | |
0765af44 HS |
1045 | int ret = 0; |
1046 | ||
aa21c004 | 1047 | if (priv->connect_status != LBS_CONNECTED) |
876c9d3a MT |
1048 | return 0; |
1049 | ||
52507c20 | 1050 | lbs_deb_enter(LBS_DEB_ASSOC); |
876c9d3a | 1051 | if (test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) { |
0765af44 HS |
1052 | lbs_deb_assoc("Deauthenticating due to new SSID\n"); |
1053 | ret = 1; | |
1054 | goto out; | |
876c9d3a MT |
1055 | } |
1056 | ||
1057 | if (test_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags)) { | |
aa21c004 | 1058 | if (priv->secinfo.auth_mode != assoc_req->secinfo.auth_mode) { |
0765af44 HS |
1059 | lbs_deb_assoc("Deauthenticating due to new security\n"); |
1060 | ret = 1; | |
1061 | goto out; | |
876c9d3a MT |
1062 | } |
1063 | } | |
1064 | ||
1065 | if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) { | |
0765af44 HS |
1066 | lbs_deb_assoc("Deauthenticating due to new BSSID\n"); |
1067 | ret = 1; | |
1068 | goto out; | |
876c9d3a MT |
1069 | } |
1070 | ||
fff47f10 | 1071 | if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags)) { |
0765af44 HS |
1072 | lbs_deb_assoc("Deauthenticating due to channel switch\n"); |
1073 | ret = 1; | |
1074 | goto out; | |
fff47f10 LCCR |
1075 | } |
1076 | ||
876c9d3a MT |
1077 | /* FIXME: deal with 'auto' mode somehow */ |
1078 | if (test_bit(ASSOC_FLAG_MODE, &assoc_req->flags)) { | |
0765af44 HS |
1079 | if (assoc_req->mode != IW_MODE_INFRA) { |
1080 | lbs_deb_assoc("Deauthenticating due to leaving " | |
1081 | "infra mode\n"); | |
1082 | ret = 1; | |
1083 | goto out; | |
1084 | } | |
876c9d3a MT |
1085 | } |
1086 | ||
0765af44 HS |
1087 | out: |
1088 | lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret); | |
52507c20 | 1089 | return ret; |
876c9d3a MT |
1090 | } |
1091 | ||
1092 | ||
aa21c004 | 1093 | static int should_stop_adhoc(struct lbs_private *priv, |
876c9d3a MT |
1094 | struct assoc_request * assoc_req) |
1095 | { | |
0765af44 HS |
1096 | lbs_deb_enter(LBS_DEB_ASSOC); |
1097 | ||
aa21c004 | 1098 | if (priv->connect_status != LBS_CONNECTED) |
876c9d3a MT |
1099 | return 0; |
1100 | ||
aa21c004 DW |
1101 | if (lbs_ssid_cmp(priv->curbssparams.ssid, |
1102 | priv->curbssparams.ssid_len, | |
d8efea25 | 1103 | assoc_req->ssid, assoc_req->ssid_len) != 0) |
876c9d3a MT |
1104 | return 1; |
1105 | ||
1106 | /* FIXME: deal with 'auto' mode somehow */ | |
1107 | if (test_bit(ASSOC_FLAG_MODE, &assoc_req->flags)) { | |
0dc5a290 | 1108 | if (assoc_req->mode != IW_MODE_ADHOC) |
876c9d3a MT |
1109 | return 1; |
1110 | } | |
1111 | ||
ef9a264b | 1112 | if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags)) { |
aa21c004 | 1113 | if (assoc_req->channel != priv->curbssparams.channel) |
ef9a264b DW |
1114 | return 1; |
1115 | } | |
1116 | ||
0765af44 | 1117 | lbs_deb_leave(LBS_DEB_ASSOC); |
876c9d3a MT |
1118 | return 0; |
1119 | } | |
1120 | ||
1121 | ||
245bf20f HS |
1122 | /** |
1123 | * @brief This function finds the best SSID in the Scan List | |
1124 | * | |
1125 | * Search the scan table for the best SSID that also matches the current | |
1126 | * adapter network preference (infrastructure or adhoc) | |
1127 | * | |
1128 | * @param priv A pointer to struct lbs_private | |
1129 | * | |
1130 | * @return index in BSSID list | |
1131 | */ | |
1132 | static struct bss_descriptor *lbs_find_best_ssid_in_list( | |
1133 | struct lbs_private *priv, uint8_t mode) | |
1134 | { | |
1135 | uint8_t bestrssi = 0; | |
1136 | struct bss_descriptor *iter_bss; | |
1137 | struct bss_descriptor *best_bss = NULL; | |
1138 | ||
1139 | lbs_deb_enter(LBS_DEB_SCAN); | |
1140 | ||
1141 | mutex_lock(&priv->lock); | |
1142 | ||
1143 | list_for_each_entry(iter_bss, &priv->network_list, list) { | |
1144 | switch (mode) { | |
1145 | case IW_MODE_INFRA: | |
1146 | case IW_MODE_ADHOC: | |
1147 | if (!is_network_compatible(priv, iter_bss, mode)) | |
1148 | break; | |
1149 | if (SCAN_RSSI(iter_bss->rssi) <= bestrssi) | |
1150 | break; | |
1151 | bestrssi = SCAN_RSSI(iter_bss->rssi); | |
1152 | best_bss = iter_bss; | |
1153 | break; | |
1154 | case IW_MODE_AUTO: | |
1155 | default: | |
1156 | if (SCAN_RSSI(iter_bss->rssi) <= bestrssi) | |
1157 | break; | |
1158 | bestrssi = SCAN_RSSI(iter_bss->rssi); | |
1159 | best_bss = iter_bss; | |
1160 | break; | |
1161 | } | |
1162 | } | |
1163 | ||
1164 | mutex_unlock(&priv->lock); | |
1165 | lbs_deb_leave_args(LBS_DEB_SCAN, "best_bss %p", best_bss); | |
1166 | return best_bss; | |
1167 | } | |
1168 | ||
1169 | /** | |
1170 | * @brief Find the best AP | |
1171 | * | |
1172 | * Used from association worker. | |
1173 | * | |
1174 | * @param priv A pointer to struct lbs_private structure | |
1175 | * @param pSSID A pointer to AP's ssid | |
1176 | * | |
1177 | * @return 0--success, otherwise--fail | |
1178 | */ | |
1179 | static int lbs_find_best_network_ssid(struct lbs_private *priv, | |
1180 | uint8_t *out_ssid, uint8_t *out_ssid_len, uint8_t preferred_mode, | |
1181 | uint8_t *out_mode) | |
1182 | { | |
1183 | int ret = -1; | |
1184 | struct bss_descriptor *found; | |
1185 | ||
1186 | lbs_deb_enter(LBS_DEB_SCAN); | |
1187 | ||
1188 | priv->scan_ssid_len = 0; | |
1189 | lbs_scan_networks(priv, 1); | |
1190 | if (priv->surpriseremoved) | |
1191 | goto out; | |
1192 | ||
1193 | found = lbs_find_best_ssid_in_list(priv, preferred_mode); | |
1194 | if (found && (found->ssid_len > 0)) { | |
1195 | memcpy(out_ssid, &found->ssid, IW_ESSID_MAX_SIZE); | |
1196 | *out_ssid_len = found->ssid_len; | |
1197 | *out_mode = found->mode; | |
1198 | ret = 0; | |
1199 | } | |
1200 | ||
1201 | out: | |
1202 | lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret); | |
1203 | return ret; | |
1204 | } | |
1205 | ||
1206 | ||
10078321 | 1207 | void lbs_association_worker(struct work_struct *work) |
876c9d3a | 1208 | { |
69f9032d HS |
1209 | struct lbs_private *priv = container_of(work, struct lbs_private, |
1210 | assoc_work.work); | |
876c9d3a MT |
1211 | struct assoc_request * assoc_req = NULL; |
1212 | int ret = 0; | |
1213 | int find_any_ssid = 0; | |
9387b7ca | 1214 | DECLARE_SSID_BUF(ssid); |
876c9d3a | 1215 | |
9012b28a | 1216 | lbs_deb_enter(LBS_DEB_ASSOC); |
876c9d3a | 1217 | |
aa21c004 DW |
1218 | mutex_lock(&priv->lock); |
1219 | assoc_req = priv->pending_assoc_req; | |
1220 | priv->pending_assoc_req = NULL; | |
1221 | priv->in_progress_assoc_req = assoc_req; | |
1222 | mutex_unlock(&priv->lock); | |
876c9d3a | 1223 | |
9012b28a HS |
1224 | if (!assoc_req) |
1225 | goto done; | |
876c9d3a | 1226 | |
0765af44 HS |
1227 | lbs_deb_assoc( |
1228 | "Association Request:\n" | |
1229 | " flags: 0x%08lx\n" | |
1230 | " SSID: '%s'\n" | |
1231 | " chann: %d\n" | |
1232 | " band: %d\n" | |
1233 | " mode: %d\n" | |
e174961c | 1234 | " BSSID: %pM\n" |
0765af44 HS |
1235 | " secinfo: %s%s%s\n" |
1236 | " auth_mode: %d\n", | |
1237 | assoc_req->flags, | |
9387b7ca | 1238 | print_ssid(ssid, assoc_req->ssid, assoc_req->ssid_len), |
0765af44 | 1239 | assoc_req->channel, assoc_req->band, assoc_req->mode, |
e174961c | 1240 | assoc_req->bssid, |
0765af44 HS |
1241 | assoc_req->secinfo.WPAenabled ? " WPA" : "", |
1242 | assoc_req->secinfo.WPA2enabled ? " WPA2" : "", | |
1243 | assoc_req->secinfo.wep_enabled ? " WEP" : "", | |
1244 | assoc_req->secinfo.auth_mode); | |
876c9d3a MT |
1245 | |
1246 | /* If 'any' SSID was specified, find an SSID to associate with */ | |
1247 | if (test_bit(ASSOC_FLAG_SSID, &assoc_req->flags) | |
d8efea25 | 1248 | && !assoc_req->ssid_len) |
876c9d3a MT |
1249 | find_any_ssid = 1; |
1250 | ||
1251 | /* But don't use 'any' SSID if there's a valid locked BSSID to use */ | |
1252 | if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) { | |
3cf20931 DW |
1253 | if (compare_ether_addr(assoc_req->bssid, bssid_any) |
1254 | && compare_ether_addr(assoc_req->bssid, bssid_off)) | |
876c9d3a MT |
1255 | find_any_ssid = 0; |
1256 | } | |
1257 | ||
1258 | if (find_any_ssid) { | |
877cb0d4 | 1259 | u8 new_mode = assoc_req->mode; |
876c9d3a | 1260 | |
10078321 | 1261 | ret = lbs_find_best_network_ssid(priv, assoc_req->ssid, |
d8efea25 | 1262 | &assoc_req->ssid_len, assoc_req->mode, &new_mode); |
876c9d3a | 1263 | if (ret) { |
9012b28a | 1264 | lbs_deb_assoc("Could not find best network\n"); |
876c9d3a MT |
1265 | ret = -ENETUNREACH; |
1266 | goto out; | |
1267 | } | |
1268 | ||
1269 | /* Ensure we switch to the mode of the AP */ | |
0dc5a290 | 1270 | if (assoc_req->mode == IW_MODE_AUTO) { |
876c9d3a MT |
1271 | set_bit(ASSOC_FLAG_MODE, &assoc_req->flags); |
1272 | assoc_req->mode = new_mode; | |
1273 | } | |
1274 | } | |
1275 | ||
1276 | /* | |
1277 | * Check if the attributes being changing require deauthentication | |
1278 | * from the currently associated infrastructure access point. | |
1279 | */ | |
aa21c004 DW |
1280 | if (priv->mode == IW_MODE_INFRA) { |
1281 | if (should_deauth_infrastructure(priv, assoc_req)) { | |
191bb40e DW |
1282 | ret = lbs_cmd_80211_deauthenticate(priv, |
1283 | priv->curbssparams.bssid, | |
1284 | WLAN_REASON_DEAUTH_LEAVING); | |
876c9d3a | 1285 | if (ret) { |
9012b28a | 1286 | lbs_deb_assoc("Deauthentication due to new " |
876c9d3a MT |
1287 | "configuration request failed: %d\n", |
1288 | ret); | |
1289 | } | |
1290 | } | |
aa21c004 DW |
1291 | } else if (priv->mode == IW_MODE_ADHOC) { |
1292 | if (should_stop_adhoc(priv, assoc_req)) { | |
f5fe1fda | 1293 | ret = lbs_adhoc_stop(priv); |
876c9d3a | 1294 | if (ret) { |
9012b28a | 1295 | lbs_deb_assoc("Teardown of AdHoc network due to " |
876c9d3a MT |
1296 | "new configuration request failed: %d\n", |
1297 | ret); | |
1298 | } | |
1299 | ||
1300 | } | |
1301 | } | |
1302 | ||
1303 | /* Send the various configuration bits to the firmware */ | |
1304 | if (test_bit(ASSOC_FLAG_MODE, &assoc_req->flags)) { | |
1305 | ret = assoc_helper_mode(priv, assoc_req); | |
0765af44 | 1306 | if (ret) |
876c9d3a | 1307 | goto out; |
876c9d3a MT |
1308 | } |
1309 | ||
ef9a264b DW |
1310 | if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags)) { |
1311 | ret = assoc_helper_channel(priv, assoc_req); | |
0765af44 | 1312 | if (ret) |
ef9a264b | 1313 | goto out; |
ef9a264b DW |
1314 | } |
1315 | ||
876c9d3a MT |
1316 | if ( test_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags) |
1317 | || test_bit(ASSOC_FLAG_WEP_TX_KEYIDX, &assoc_req->flags)) { | |
1318 | ret = assoc_helper_wep_keys(priv, assoc_req); | |
0765af44 | 1319 | if (ret) |
876c9d3a | 1320 | goto out; |
876c9d3a MT |
1321 | } |
1322 | ||
1323 | if (test_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags)) { | |
1324 | ret = assoc_helper_secinfo(priv, assoc_req); | |
0765af44 | 1325 | if (ret) |
876c9d3a | 1326 | goto out; |
876c9d3a MT |
1327 | } |
1328 | ||
1329 | if (test_bit(ASSOC_FLAG_WPA_IE, &assoc_req->flags)) { | |
1330 | ret = assoc_helper_wpa_ie(priv, assoc_req); | |
0765af44 | 1331 | if (ret) |
876c9d3a | 1332 | goto out; |
876c9d3a MT |
1333 | } |
1334 | ||
1335 | if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags) | |
1336 | || test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags)) { | |
1337 | ret = assoc_helper_wpa_keys(priv, assoc_req); | |
0765af44 | 1338 | if (ret) |
876c9d3a | 1339 | goto out; |
876c9d3a MT |
1340 | } |
1341 | ||
1342 | /* SSID/BSSID should be the _last_ config option set, because they | |
1343 | * trigger the association attempt. | |
1344 | */ | |
1345 | if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags) | |
1346 | || test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) { | |
1347 | int success = 1; | |
1348 | ||
1349 | ret = assoc_helper_associate(priv, assoc_req); | |
1350 | if (ret) { | |
91843463 | 1351 | lbs_deb_assoc("ASSOC: association unsuccessful: %d\n", |
876c9d3a MT |
1352 | ret); |
1353 | success = 0; | |
1354 | } | |
1355 | ||
aa21c004 | 1356 | if (priv->connect_status != LBS_CONNECTED) { |
91843463 HS |
1357 | lbs_deb_assoc("ASSOC: association unsuccessful, " |
1358 | "not connected\n"); | |
876c9d3a MT |
1359 | success = 0; |
1360 | } | |
1361 | ||
1362 | if (success) { | |
e174961c JB |
1363 | lbs_deb_assoc("associated to %pM\n", |
1364 | priv->curbssparams.bssid); | |
10078321 | 1365 | lbs_prepare_and_send_command(priv, |
0aef64d7 DW |
1366 | CMD_802_11_RSSI, |
1367 | 0, CMD_OPTION_WAITFORRSP, 0, NULL); | |
876c9d3a | 1368 | } else { |
876c9d3a MT |
1369 | ret = -1; |
1370 | } | |
1371 | } | |
1372 | ||
1373 | out: | |
1374 | if (ret) { | |
9012b28a | 1375 | lbs_deb_assoc("ASSOC: reconfiguration attempt unsuccessful: %d\n", |
876c9d3a MT |
1376 | ret); |
1377 | } | |
e76850d6 | 1378 | |
aa21c004 DW |
1379 | mutex_lock(&priv->lock); |
1380 | priv->in_progress_assoc_req = NULL; | |
1381 | mutex_unlock(&priv->lock); | |
876c9d3a | 1382 | kfree(assoc_req); |
9012b28a HS |
1383 | |
1384 | done: | |
1385 | lbs_deb_leave(LBS_DEB_ASSOC); | |
876c9d3a MT |
1386 | } |
1387 | ||
1388 | ||
1389 | /* | |
1390 | * Caller MUST hold any necessary locks | |
1391 | */ | |
aa21c004 | 1392 | struct assoc_request *lbs_get_association_request(struct lbs_private *priv) |
876c9d3a MT |
1393 | { |
1394 | struct assoc_request * assoc_req; | |
1395 | ||
0765af44 | 1396 | lbs_deb_enter(LBS_DEB_ASSOC); |
aa21c004 DW |
1397 | if (!priv->pending_assoc_req) { |
1398 | priv->pending_assoc_req = kzalloc(sizeof(struct assoc_request), | |
e76850d6 | 1399 | GFP_KERNEL); |
aa21c004 | 1400 | if (!priv->pending_assoc_req) { |
876c9d3a MT |
1401 | lbs_pr_info("Not enough memory to allocate association" |
1402 | " request!\n"); | |
1403 | return NULL; | |
1404 | } | |
1405 | } | |
1406 | ||
1407 | /* Copy current configuration attributes to the association request, | |
1408 | * but don't overwrite any that are already set. | |
1409 | */ | |
aa21c004 | 1410 | assoc_req = priv->pending_assoc_req; |
876c9d3a | 1411 | if (!test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) { |
aa21c004 | 1412 | memcpy(&assoc_req->ssid, &priv->curbssparams.ssid, |
d8efea25 | 1413 | IW_ESSID_MAX_SIZE); |
aa21c004 | 1414 | assoc_req->ssid_len = priv->curbssparams.ssid_len; |
876c9d3a MT |
1415 | } |
1416 | ||
1417 | if (!test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags)) | |
aa21c004 | 1418 | assoc_req->channel = priv->curbssparams.channel; |
876c9d3a | 1419 | |
e76850d6 | 1420 | if (!test_bit(ASSOC_FLAG_BAND, &assoc_req->flags)) |
aa21c004 | 1421 | assoc_req->band = priv->curbssparams.band; |
e76850d6 | 1422 | |
876c9d3a | 1423 | if (!test_bit(ASSOC_FLAG_MODE, &assoc_req->flags)) |
aa21c004 | 1424 | assoc_req->mode = priv->mode; |
876c9d3a MT |
1425 | |
1426 | if (!test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) { | |
aa21c004 | 1427 | memcpy(&assoc_req->bssid, priv->curbssparams.bssid, |
876c9d3a MT |
1428 | ETH_ALEN); |
1429 | } | |
1430 | ||
1431 | if (!test_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags)) { | |
1432 | int i; | |
1433 | for (i = 0; i < 4; i++) { | |
aa21c004 | 1434 | memcpy(&assoc_req->wep_keys[i], &priv->wep_keys[i], |
1443b653 | 1435 | sizeof(struct enc_key)); |
876c9d3a MT |
1436 | } |
1437 | } | |
1438 | ||
1439 | if (!test_bit(ASSOC_FLAG_WEP_TX_KEYIDX, &assoc_req->flags)) | |
aa21c004 | 1440 | assoc_req->wep_tx_keyidx = priv->wep_tx_keyidx; |
876c9d3a MT |
1441 | |
1442 | if (!test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags)) { | |
aa21c004 | 1443 | memcpy(&assoc_req->wpa_mcast_key, &priv->wpa_mcast_key, |
1443b653 | 1444 | sizeof(struct enc_key)); |
876c9d3a MT |
1445 | } |
1446 | ||
1447 | if (!test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags)) { | |
aa21c004 | 1448 | memcpy(&assoc_req->wpa_unicast_key, &priv->wpa_unicast_key, |
1443b653 | 1449 | sizeof(struct enc_key)); |
876c9d3a MT |
1450 | } |
1451 | ||
1452 | if (!test_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags)) { | |
aa21c004 | 1453 | memcpy(&assoc_req->secinfo, &priv->secinfo, |
10078321 | 1454 | sizeof(struct lbs_802_11_security)); |
876c9d3a MT |
1455 | } |
1456 | ||
1457 | if (!test_bit(ASSOC_FLAG_WPA_IE, &assoc_req->flags)) { | |
aa21c004 | 1458 | memcpy(&assoc_req->wpa_ie, &priv->wpa_ie, |
876c9d3a | 1459 | MAX_WPA_IE_LEN); |
aa21c004 | 1460 | assoc_req->wpa_ie_len = priv->wpa_ie_len; |
876c9d3a MT |
1461 | } |
1462 | ||
0765af44 | 1463 | lbs_deb_leave(LBS_DEB_ASSOC); |
876c9d3a MT |
1464 | return assoc_req; |
1465 | } | |
697900ac HS |
1466 | |
1467 | ||
697900ac HS |
1468 | /** |
1469 | * @brief This function prepares command of authenticate. | |
1470 | * | |
1471 | * @param priv A pointer to struct lbs_private structure | |
1472 | * @param cmd A pointer to cmd_ds_command structure | |
1473 | * @param pdata_buf Void cast of pointer to a BSSID to authenticate with | |
1474 | * | |
1475 | * @return 0 or -1 | |
1476 | */ | |
1477 | int lbs_cmd_80211_authenticate(struct lbs_private *priv, | |
1478 | struct cmd_ds_command *cmd, | |
1479 | void *pdata_buf) | |
1480 | { | |
1481 | struct cmd_ds_802_11_authenticate *pauthenticate = &cmd->params.auth; | |
1482 | int ret = -1; | |
1483 | u8 *bssid = pdata_buf; | |
697900ac HS |
1484 | |
1485 | lbs_deb_enter(LBS_DEB_JOIN); | |
1486 | ||
1487 | cmd->command = cpu_to_le16(CMD_802_11_AUTHENTICATE); | |
1488 | cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_authenticate) | |
1489 | + S_DS_GEN); | |
1490 | ||
1491 | /* translate auth mode to 802.11 defined wire value */ | |
1492 | switch (priv->secinfo.auth_mode) { | |
1493 | case IW_AUTH_ALG_OPEN_SYSTEM: | |
1494 | pauthenticate->authtype = 0x00; | |
1495 | break; | |
1496 | case IW_AUTH_ALG_SHARED_KEY: | |
1497 | pauthenticate->authtype = 0x01; | |
1498 | break; | |
1499 | case IW_AUTH_ALG_LEAP: | |
1500 | pauthenticate->authtype = 0x80; | |
1501 | break; | |
1502 | default: | |
1503 | lbs_deb_join("AUTH_CMD: invalid auth alg 0x%X\n", | |
1504 | priv->secinfo.auth_mode); | |
1505 | goto out; | |
1506 | } | |
1507 | ||
1508 | memcpy(pauthenticate->macaddr, bssid, ETH_ALEN); | |
1509 | ||
e174961c JB |
1510 | lbs_deb_join("AUTH_CMD: BSSID %pM, auth 0x%x\n", |
1511 | bssid, pauthenticate->authtype); | |
697900ac HS |
1512 | ret = 0; |
1513 | ||
1514 | out: | |
1515 | lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret); | |
1516 | return ret; | |
1517 | } | |
1518 | ||
191bb40e DW |
1519 | /** |
1520 | * @brief Deauthenticate from a specific BSS | |
1521 | * | |
1522 | * @param priv A pointer to struct lbs_private structure | |
1523 | * @param bssid The specific BSS to deauthenticate from | |
1524 | * @param reason The 802.11 sec. 7.3.1.7 Reason Code for deauthenticating | |
1525 | * | |
1526 | * @return 0 on success, error on failure | |
1527 | */ | |
1528 | int lbs_cmd_80211_deauthenticate(struct lbs_private *priv, u8 bssid[ETH_ALEN], | |
1529 | u16 reason) | |
697900ac | 1530 | { |
191bb40e DW |
1531 | struct cmd_ds_802_11_deauthenticate cmd; |
1532 | int ret; | |
697900ac HS |
1533 | |
1534 | lbs_deb_enter(LBS_DEB_JOIN); | |
1535 | ||
191bb40e DW |
1536 | memset(&cmd, 0, sizeof(cmd)); |
1537 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); | |
1538 | memcpy(cmd.macaddr, &bssid[0], ETH_ALEN); | |
1539 | cmd.reasoncode = cpu_to_le16(reason); | |
697900ac | 1540 | |
191bb40e | 1541 | ret = lbs_cmd_with_response(priv, CMD_802_11_DEAUTHENTICATE, &cmd); |
697900ac | 1542 | |
191bb40e DW |
1543 | /* Clean up everything even if there was an error; can't assume that |
1544 | * we're still authenticated to the AP after trying to deauth. | |
1545 | */ | |
1546 | lbs_mac_event_disconnected(priv); | |
697900ac HS |
1547 | |
1548 | lbs_deb_leave(LBS_DEB_JOIN); | |
191bb40e | 1549 | return ret; |
697900ac HS |
1550 | } |
1551 | ||
1552 | int lbs_cmd_80211_associate(struct lbs_private *priv, | |
1553 | struct cmd_ds_command *cmd, void *pdata_buf) | |
1554 | { | |
1555 | struct cmd_ds_802_11_associate *passo = &cmd->params.associate; | |
1556 | int ret = 0; | |
1557 | struct assoc_request *assoc_req = pdata_buf; | |
1558 | struct bss_descriptor *bss = &assoc_req->bss; | |
1559 | u8 *pos; | |
1560 | u16 tmpcap, tmplen; | |
75b6a61a DW |
1561 | struct mrvl_ie_ssid_param_set *ssid; |
1562 | struct mrvl_ie_ds_param_set *ds; | |
1563 | struct mrvl_ie_cf_param_set *cf; | |
1564 | struct mrvl_ie_rates_param_set *rates; | |
1565 | struct mrvl_ie_rsn_param_set *rsn; | |
697900ac HS |
1566 | |
1567 | lbs_deb_enter(LBS_DEB_ASSOC); | |
1568 | ||
1569 | pos = (u8 *) passo; | |
1570 | ||
1571 | if (!priv) { | |
1572 | ret = -1; | |
1573 | goto done; | |
1574 | } | |
1575 | ||
1576 | cmd->command = cpu_to_le16(CMD_802_11_ASSOCIATE); | |
1577 | ||
1578 | memcpy(passo->peerstaaddr, bss->bssid, sizeof(passo->peerstaaddr)); | |
1579 | pos += sizeof(passo->peerstaaddr); | |
1580 | ||
1581 | /* set the listen interval */ | |
1582 | passo->listeninterval = cpu_to_le16(MRVDRV_DEFAULT_LISTEN_INTERVAL); | |
1583 | ||
1584 | pos += sizeof(passo->capability); | |
1585 | pos += sizeof(passo->listeninterval); | |
1586 | pos += sizeof(passo->bcnperiod); | |
1587 | pos += sizeof(passo->dtimperiod); | |
1588 | ||
75b6a61a | 1589 | ssid = (struct mrvl_ie_ssid_param_set *) pos; |
697900ac HS |
1590 | ssid->header.type = cpu_to_le16(TLV_TYPE_SSID); |
1591 | tmplen = bss->ssid_len; | |
1592 | ssid->header.len = cpu_to_le16(tmplen); | |
1593 | memcpy(ssid->ssid, bss->ssid, tmplen); | |
1594 | pos += sizeof(ssid->header) + tmplen; | |
1595 | ||
75b6a61a | 1596 | ds = (struct mrvl_ie_ds_param_set *) pos; |
5fd164e9 DW |
1597 | ds->header.type = cpu_to_le16(TLV_TYPE_PHY_DS); |
1598 | ds->header.len = cpu_to_le16(1); | |
1599 | ds->channel = bss->phy.ds.channel; | |
1600 | pos += sizeof(ds->header) + 1; | |
1601 | ||
75b6a61a | 1602 | cf = (struct mrvl_ie_cf_param_set *) pos; |
5fd164e9 DW |
1603 | cf->header.type = cpu_to_le16(TLV_TYPE_CF); |
1604 | tmplen = sizeof(*cf) - sizeof (cf->header); | |
1605 | cf->header.len = cpu_to_le16(tmplen); | |
1606 | /* IE payload should be zeroed, firmware fills it in for us */ | |
1607 | pos += sizeof(*cf); | |
697900ac | 1608 | |
75b6a61a | 1609 | rates = (struct mrvl_ie_rates_param_set *) pos; |
697900ac HS |
1610 | rates->header.type = cpu_to_le16(TLV_TYPE_RATES); |
1611 | memcpy(&rates->rates, &bss->rates, MAX_RATES); | |
1612 | tmplen = MAX_RATES; | |
1613 | if (get_common_rates(priv, rates->rates, &tmplen)) { | |
1614 | ret = -1; | |
1615 | goto done; | |
1616 | } | |
1617 | pos += sizeof(rates->header) + tmplen; | |
1618 | rates->header.len = cpu_to_le16(tmplen); | |
1619 | lbs_deb_assoc("ASSOC_CMD: num rates %u\n", tmplen); | |
1620 | ||
1621 | /* Copy the infra. association rates into Current BSS state structure */ | |
1622 | memset(&priv->curbssparams.rates, 0, sizeof(priv->curbssparams.rates)); | |
1623 | memcpy(&priv->curbssparams.rates, &rates->rates, tmplen); | |
1624 | ||
1625 | /* Set MSB on basic rates as the firmware requires, but _after_ | |
1626 | * copying to current bss rates. | |
1627 | */ | |
1628 | lbs_set_basic_rate_flags(rates->rates, tmplen); | |
1629 | ||
1630 | if (assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled) { | |
75b6a61a | 1631 | rsn = (struct mrvl_ie_rsn_param_set *) pos; |
697900ac HS |
1632 | /* WPA_IE or WPA2_IE */ |
1633 | rsn->header.type = cpu_to_le16((u16) assoc_req->wpa_ie[0]); | |
1634 | tmplen = (u16) assoc_req->wpa_ie[1]; | |
1635 | rsn->header.len = cpu_to_le16(tmplen); | |
1636 | memcpy(rsn->rsnie, &assoc_req->wpa_ie[2], tmplen); | |
1637 | lbs_deb_hex(LBS_DEB_JOIN, "ASSOC_CMD: RSN IE", (u8 *) rsn, | |
1638 | sizeof(rsn->header) + tmplen); | |
1639 | pos += sizeof(rsn->header) + tmplen; | |
1640 | } | |
1641 | ||
1642 | /* update curbssparams */ | |
5fd164e9 | 1643 | priv->curbssparams.channel = bss->phy.ds.channel; |
697900ac HS |
1644 | |
1645 | if (lbs_parse_dnld_countryinfo_11d(priv, bss)) { | |
1646 | ret = -1; | |
1647 | goto done; | |
1648 | } | |
1649 | ||
1650 | cmd->size = cpu_to_le16((u16) (pos - (u8 *) passo) + S_DS_GEN); | |
1651 | ||
1652 | /* set the capability info */ | |
1653 | tmpcap = (bss->capability & CAPINFO_MASK); | |
1654 | if (bss->mode == IW_MODE_INFRA) | |
1655 | tmpcap |= WLAN_CAPABILITY_ESS; | |
1656 | passo->capability = cpu_to_le16(tmpcap); | |
1657 | lbs_deb_assoc("ASSOC_CMD: capability 0x%04x\n", tmpcap); | |
1658 | ||
1659 | done: | |
1660 | lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret); | |
1661 | return ret; | |
1662 | } | |
1663 | ||
697900ac HS |
1664 | int lbs_ret_80211_associate(struct lbs_private *priv, |
1665 | struct cmd_ds_command *resp) | |
1666 | { | |
1667 | int ret = 0; | |
1668 | union iwreq_data wrqu; | |
5fd164e9 | 1669 | struct ieee_assoc_response *passocrsp; |
697900ac HS |
1670 | struct bss_descriptor *bss; |
1671 | u16 status_code; | |
1672 | ||
1673 | lbs_deb_enter(LBS_DEB_ASSOC); | |
1674 | ||
1675 | if (!priv->in_progress_assoc_req) { | |
1676 | lbs_deb_assoc("ASSOC_RESP: no in-progress assoc request\n"); | |
1677 | ret = -1; | |
1678 | goto done; | |
1679 | } | |
1680 | bss = &priv->in_progress_assoc_req->bss; | |
1681 | ||
5fd164e9 | 1682 | passocrsp = (struct ieee_assoc_response *) &resp->params; |
697900ac HS |
1683 | |
1684 | /* | |
1685 | * Older FW versions map the IEEE 802.11 Status Code in the association | |
1686 | * response to the following values returned in passocrsp->statuscode: | |
1687 | * | |
1688 | * IEEE Status Code Marvell Status Code | |
1689 | * 0 -> 0x0000 ASSOC_RESULT_SUCCESS | |
1690 | * 13 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED | |
1691 | * 14 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED | |
1692 | * 15 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED | |
1693 | * 16 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED | |
1694 | * others -> 0x0003 ASSOC_RESULT_REFUSED | |
1695 | * | |
1696 | * Other response codes: | |
1697 | * 0x0001 -> ASSOC_RESULT_INVALID_PARAMETERS (unused) | |
1698 | * 0x0002 -> ASSOC_RESULT_TIMEOUT (internal timer expired waiting for | |
1699 | * association response from the AP) | |
1700 | */ | |
1701 | ||
1702 | status_code = le16_to_cpu(passocrsp->statuscode); | |
1703 | switch (status_code) { | |
1704 | case 0x00: | |
1705 | break; | |
1706 | case 0x01: | |
1707 | lbs_deb_assoc("ASSOC_RESP: invalid parameters\n"); | |
1708 | break; | |
1709 | case 0x02: | |
1710 | lbs_deb_assoc("ASSOC_RESP: internal timer " | |
1711 | "expired while waiting for the AP\n"); | |
1712 | break; | |
1713 | case 0x03: | |
1714 | lbs_deb_assoc("ASSOC_RESP: association " | |
1715 | "refused by AP\n"); | |
1716 | break; | |
1717 | case 0x04: | |
1718 | lbs_deb_assoc("ASSOC_RESP: authentication " | |
1719 | "refused by AP\n"); | |
1720 | break; | |
1721 | default: | |
1722 | lbs_deb_assoc("ASSOC_RESP: failure reason 0x%02x " | |
1723 | " unknown\n", status_code); | |
1724 | break; | |
1725 | } | |
1726 | ||
1727 | if (status_code) { | |
1728 | lbs_mac_event_disconnected(priv); | |
1729 | ret = -1; | |
1730 | goto done; | |
1731 | } | |
1732 | ||
1733 | lbs_deb_hex(LBS_DEB_ASSOC, "ASSOC_RESP", (void *)&resp->params, | |
1734 | le16_to_cpu(resp->size) - S_DS_GEN); | |
1735 | ||
1736 | /* Send a Media Connected event, according to the Spec */ | |
1737 | priv->connect_status = LBS_CONNECTED; | |
1738 | ||
1739 | /* Update current SSID and BSSID */ | |
1740 | memcpy(&priv->curbssparams.ssid, &bss->ssid, IW_ESSID_MAX_SIZE); | |
1741 | priv->curbssparams.ssid_len = bss->ssid_len; | |
1742 | memcpy(priv->curbssparams.bssid, bss->bssid, ETH_ALEN); | |
1743 | ||
1744 | priv->SNR[TYPE_RXPD][TYPE_AVG] = 0; | |
1745 | priv->NF[TYPE_RXPD][TYPE_AVG] = 0; | |
1746 | ||
1747 | memset(priv->rawSNR, 0x00, sizeof(priv->rawSNR)); | |
1748 | memset(priv->rawNF, 0x00, sizeof(priv->rawNF)); | |
1749 | priv->nextSNRNF = 0; | |
1750 | priv->numSNRNF = 0; | |
1751 | ||
1752 | netif_carrier_on(priv->dev); | |
1753 | if (!priv->tx_pending_len) | |
1754 | netif_wake_queue(priv->dev); | |
1755 | ||
1756 | memcpy(wrqu.ap_addr.sa_data, priv->curbssparams.bssid, ETH_ALEN); | |
1757 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
1758 | wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL); | |
1759 | ||
1760 | done: | |
1761 | lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret); | |
1762 | return ret; | |
1763 | } | |
1764 | ||
f5fe1fda | 1765 | static int lbs_adhoc_post(struct lbs_private *priv, struct cmd_header *resp) |
697900ac HS |
1766 | { |
1767 | int ret = 0; | |
1768 | u16 command = le16_to_cpu(resp->command); | |
1769 | u16 result = le16_to_cpu(resp->result); | |
f5fe1fda | 1770 | struct cmd_ds_802_11_ad_hoc_result *adhoc_resp; |
697900ac HS |
1771 | union iwreq_data wrqu; |
1772 | struct bss_descriptor *bss; | |
9387b7ca | 1773 | DECLARE_SSID_BUF(ssid); |
697900ac HS |
1774 | |
1775 | lbs_deb_enter(LBS_DEB_JOIN); | |
1776 | ||
f5fe1fda | 1777 | adhoc_resp = (struct cmd_ds_802_11_ad_hoc_result *) resp; |
697900ac HS |
1778 | |
1779 | if (!priv->in_progress_assoc_req) { | |
1780 | lbs_deb_join("ADHOC_RESP: no in-progress association " | |
1781 | "request\n"); | |
1782 | ret = -1; | |
1783 | goto done; | |
1784 | } | |
1785 | bss = &priv->in_progress_assoc_req->bss; | |
1786 | ||
1787 | /* | |
1788 | * Join result code 0 --> SUCCESS | |
1789 | */ | |
1790 | if (result) { | |
f5fe1fda | 1791 | lbs_deb_join("ADHOC_RESP: failed (result 0x%X)\n", result); |
697900ac HS |
1792 | if (priv->connect_status == LBS_CONNECTED) |
1793 | lbs_mac_event_disconnected(priv); | |
1794 | ret = -1; | |
1795 | goto done; | |
1796 | } | |
1797 | ||
697900ac HS |
1798 | /* Send a Media Connected event, according to the Spec */ |
1799 | priv->connect_status = LBS_CONNECTED; | |
1800 | ||
1801 | if (command == CMD_RET(CMD_802_11_AD_HOC_START)) { | |
1802 | /* Update the created network descriptor with the new BSSID */ | |
f5fe1fda | 1803 | memcpy(bss->bssid, adhoc_resp->bssid, ETH_ALEN); |
697900ac HS |
1804 | } |
1805 | ||
1806 | /* Set the BSSID from the joined/started descriptor */ | |
1807 | memcpy(&priv->curbssparams.bssid, bss->bssid, ETH_ALEN); | |
1808 | ||
1809 | /* Set the new SSID to current SSID */ | |
1810 | memcpy(&priv->curbssparams.ssid, &bss->ssid, IW_ESSID_MAX_SIZE); | |
1811 | priv->curbssparams.ssid_len = bss->ssid_len; | |
1812 | ||
1813 | netif_carrier_on(priv->dev); | |
1814 | if (!priv->tx_pending_len) | |
1815 | netif_wake_queue(priv->dev); | |
1816 | ||
1817 | memset(&wrqu, 0, sizeof(wrqu)); | |
1818 | memcpy(wrqu.ap_addr.sa_data, priv->curbssparams.bssid, ETH_ALEN); | |
1819 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
1820 | wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL); | |
1821 | ||
e174961c | 1822 | lbs_deb_join("ADHOC_RESP: Joined/started '%s', BSSID %pM, channel %d\n", |
9387b7ca | 1823 | print_ssid(ssid, bss->ssid, bss->ssid_len), |
e174961c | 1824 | priv->curbssparams.bssid, |
f5fe1fda | 1825 | priv->curbssparams.channel); |
697900ac HS |
1826 | |
1827 | done: | |
1828 | lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret); | |
1829 | return ret; | |
1830 | } | |
1831 |