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1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * NXP Wireless LAN device driver: association and ad-hoc start/join
4 *
5 * Copyright 2011-2020 NXP
6 */
7
8#include "decl.h"
9#include "ioctl.h"
10#include "util.h"
11#include "fw.h"
12#include "main.h"
13#include "wmm.h"
14#include "11n.h"
15#include "11ac.h"
16
17#define CAPINFO_MASK (~(BIT(15) | BIT(14) | BIT(12) | BIT(11) | BIT(9)))
18
19/*
20 * Append a generic IE as a pass through TLV to a TLV buffer.
21 *
22 * This function is called from the network join command preparation routine.
23 *
24 * If the IE buffer has been setup by the application, this routine appends
25 * the buffer as a pass through TLV type to the request.
26 */
27static int
28mwifiex_cmd_append_generic_ie(struct mwifiex_private *priv, u8 **buffer)
29{
30 int ret_len = 0;
31 struct mwifiex_ie_types_header ie_header;
32
33 /* Null Checks */
34 if (!buffer)
35 return 0;
36 if (!(*buffer))
37 return 0;
38
39 /*
40 * If there is a generic ie buffer setup, append it to the return
41 * parameter buffer pointer.
42 */
43 if (priv->gen_ie_buf_len) {
44 mwifiex_dbg(priv->adapter, INFO,
45 "info: %s: append generic ie len %d to %p\n",
46 __func__, priv->gen_ie_buf_len, *buffer);
47
48 /* Wrap the generic IE buffer with a pass through TLV type */
49 ie_header.type = cpu_to_le16(TLV_TYPE_PASSTHROUGH);
50 ie_header.len = cpu_to_le16(priv->gen_ie_buf_len);
51 memcpy(*buffer, &ie_header, sizeof(ie_header));
52
53 /* Increment the return size and the return buffer pointer
54 param */
55 *buffer += sizeof(ie_header);
56 ret_len += sizeof(ie_header);
57
58 /* Copy the generic IE buffer to the output buffer, advance
59 pointer */
60 memcpy(*buffer, priv->gen_ie_buf, priv->gen_ie_buf_len);
61
62 /* Increment the return size and the return buffer pointer
63 param */
64 *buffer += priv->gen_ie_buf_len;
65 ret_len += priv->gen_ie_buf_len;
66
67 /* Reset the generic IE buffer */
68 priv->gen_ie_buf_len = 0;
69 }
70
71 /* return the length appended to the buffer */
72 return ret_len;
73}
74
75/*
76 * Append TSF tracking info from the scan table for the target AP.
77 *
78 * This function is called from the network join command preparation routine.
79 *
80 * The TSF table TSF sent to the firmware contains two TSF values:
81 * - The TSF of the target AP from its previous beacon/probe response
82 * - The TSF timestamp of our local MAC at the time we observed the
83 * beacon/probe response.
84 *
85 * The firmware uses the timestamp values to set an initial TSF value
86 * in the MAC for the new association after a reassociation attempt.
87 */
88static int
89mwifiex_cmd_append_tsf_tlv(struct mwifiex_private *priv, u8 **buffer,
90 struct mwifiex_bssdescriptor *bss_desc)
91{
92 struct mwifiex_ie_types_tsf_timestamp tsf_tlv;
93 __le64 tsf_val;
94
95 /* Null Checks */
96 if (buffer == NULL)
97 return 0;
98 if (*buffer == NULL)
99 return 0;
100
101 memset(&tsf_tlv, 0x00, sizeof(struct mwifiex_ie_types_tsf_timestamp));
102
103 tsf_tlv.header.type = cpu_to_le16(TLV_TYPE_TSFTIMESTAMP);
104 tsf_tlv.header.len = cpu_to_le16(2 * sizeof(tsf_val));
105
106 memcpy(*buffer, &tsf_tlv, sizeof(tsf_tlv.header));
107 *buffer += sizeof(tsf_tlv.header);
108
109 /* TSF at the time when beacon/probe_response was received */
110 tsf_val = cpu_to_le64(bss_desc->fw_tsf);
111 memcpy(*buffer, &tsf_val, sizeof(tsf_val));
112 *buffer += sizeof(tsf_val);
113
114 tsf_val = cpu_to_le64(bss_desc->timestamp);
115
116 mwifiex_dbg(priv->adapter, INFO,
117 "info: %s: TSF offset calc: %016llx - %016llx\n",
118 __func__, bss_desc->timestamp, bss_desc->fw_tsf);
119
120 memcpy(*buffer, &tsf_val, sizeof(tsf_val));
121 *buffer += sizeof(tsf_val);
122
123 return sizeof(tsf_tlv.header) + (2 * sizeof(tsf_val));
124}
125
126/*
127 * This function finds out the common rates between rate1 and rate2.
128 *
129 * It will fill common rates in rate1 as output if found.
130 *
131 * NOTE: Setting the MSB of the basic rates needs to be taken
132 * care of, either before or after calling this function.
133 */
134static int mwifiex_get_common_rates(struct mwifiex_private *priv, u8 *rate1,
135 u32 rate1_size, u8 *rate2, u32 rate2_size)
136{
137 int ret;
138 u8 *ptr = rate1, *tmp;
139 u32 i, j;
140
141 tmp = kmemdup(rate1, rate1_size, GFP_KERNEL);
142 if (!tmp) {
143 mwifiex_dbg(priv->adapter, ERROR, "failed to alloc tmp buf\n");
144 return -ENOMEM;
145 }
146
147 memset(rate1, 0, rate1_size);
148
149 for (i = 0; i < rate2_size && rate2[i]; i++) {
150 for (j = 0; j < rate1_size && tmp[j]; j++) {
151 /* Check common rate, excluding the bit for
152 basic rate */
153 if ((rate2[i] & 0x7F) == (tmp[j] & 0x7F)) {
154 *rate1++ = tmp[j];
155 break;
156 }
157 }
158 }
159
160 mwifiex_dbg(priv->adapter, INFO, "info: Tx data rate set to %#x\n",
161 priv->data_rate);
162
163 if (!priv->is_data_rate_auto) {
164 while (*ptr) {
165 if ((*ptr & 0x7f) == priv->data_rate) {
166 ret = 0;
167 goto done;
168 }
169 ptr++;
170 }
171 mwifiex_dbg(priv->adapter, ERROR,
172 "previously set fixed data rate %#x\t"
173 "is not compatible with the network\n",
174 priv->data_rate);
175
176 ret = -1;
177 goto done;
178 }
179
180 ret = 0;
181done:
182 kfree(tmp);
183 return ret;
184}
185
186/*
187 * This function creates the intersection of the rates supported by a
188 * target BSS and our adapter settings for use in an assoc/join command.
189 */
190static int
191mwifiex_setup_rates_from_bssdesc(struct mwifiex_private *priv,
192 struct mwifiex_bssdescriptor *bss_desc,
193 u8 *out_rates, u32 *out_rates_size)
194{
195 u8 card_rates[MWIFIEX_SUPPORTED_RATES];
196 u32 card_rates_size;
197
198 /* Copy AP supported rates */
199 memcpy(out_rates, bss_desc->supported_rates, MWIFIEX_SUPPORTED_RATES);
200 /* Get the STA supported rates */
201 card_rates_size = mwifiex_get_active_data_rates(priv, card_rates);
202 /* Get the common rates between AP and STA supported rates */
203 if (mwifiex_get_common_rates(priv, out_rates, MWIFIEX_SUPPORTED_RATES,
204 card_rates, card_rates_size)) {
205 *out_rates_size = 0;
206 mwifiex_dbg(priv->adapter, ERROR,
207 "%s: cannot get common rates\n",
208 __func__);
209 return -1;
210 }
211
212 *out_rates_size =
213 min_t(size_t, strlen(out_rates), MWIFIEX_SUPPORTED_RATES);
214
215 return 0;
216}
217
218/*
219 * This function appends a WPS IE. It is called from the network join command
220 * preparation routine.
221 *
222 * If the IE buffer has been setup by the application, this routine appends
223 * the buffer as a WPS TLV type to the request.
224 */
225static int
226mwifiex_cmd_append_wps_ie(struct mwifiex_private *priv, u8 **buffer)
227{
228 int retLen = 0;
229 struct mwifiex_ie_types_header ie_header;
230
231 if (!buffer || !*buffer)
232 return 0;
233
234 /*
235 * If there is a wps ie buffer setup, append it to the return
236 * parameter buffer pointer.
237 */
238 if (priv->wps_ie_len) {
239 mwifiex_dbg(priv->adapter, CMD,
240 "cmd: append wps ie %d to %p\n",
241 priv->wps_ie_len, *buffer);
242
243 /* Wrap the generic IE buffer with a pass through TLV type */
244 ie_header.type = cpu_to_le16(TLV_TYPE_PASSTHROUGH);
245 ie_header.len = cpu_to_le16(priv->wps_ie_len);
246 memcpy(*buffer, &ie_header, sizeof(ie_header));
247 *buffer += sizeof(ie_header);
248 retLen += sizeof(ie_header);
249
250 memcpy(*buffer, priv->wps_ie, priv->wps_ie_len);
251 *buffer += priv->wps_ie_len;
252 retLen += priv->wps_ie_len;
253
254 }
255
256 kfree(priv->wps_ie);
257 priv->wps_ie_len = 0;
258 return retLen;
259}
260
261/*
262 * This function appends a WAPI IE.
263 *
264 * This function is called from the network join command preparation routine.
265 *
266 * If the IE buffer has been setup by the application, this routine appends
267 * the buffer as a WAPI TLV type to the request.
268 */
269static int
270mwifiex_cmd_append_wapi_ie(struct mwifiex_private *priv, u8 **buffer)
271{
272 int retLen = 0;
273 struct mwifiex_ie_types_header ie_header;
274
275 /* Null Checks */
276 if (buffer == NULL)
277 return 0;
278 if (*buffer == NULL)
279 return 0;
280
281 /*
282 * If there is a wapi ie buffer setup, append it to the return
283 * parameter buffer pointer.
284 */
285 if (priv->wapi_ie_len) {
286 mwifiex_dbg(priv->adapter, CMD,
287 "cmd: append wapi ie %d to %p\n",
288 priv->wapi_ie_len, *buffer);
289
290 /* Wrap the generic IE buffer with a pass through TLV type */
291 ie_header.type = cpu_to_le16(TLV_TYPE_WAPI_IE);
292 ie_header.len = cpu_to_le16(priv->wapi_ie_len);
293 memcpy(*buffer, &ie_header, sizeof(ie_header));
294
295 /* Increment the return size and the return buffer pointer
296 param */
297 *buffer += sizeof(ie_header);
298 retLen += sizeof(ie_header);
299
300 /* Copy the wapi IE buffer to the output buffer, advance
301 pointer */
302 memcpy(*buffer, priv->wapi_ie, priv->wapi_ie_len);
303
304 /* Increment the return size and the return buffer pointer
305 param */
306 *buffer += priv->wapi_ie_len;
307 retLen += priv->wapi_ie_len;
308
309 }
310 /* return the length appended to the buffer */
311 return retLen;
312}
313
314/*
315 * This function appends rsn ie tlv for wpa/wpa2 security modes.
316 * It is called from the network join command preparation routine.
317 */
318static int mwifiex_append_rsn_ie_wpa_wpa2(struct mwifiex_private *priv,
319 u8 **buffer)
320{
321 struct mwifiex_ie_types_rsn_param_set *rsn_ie_tlv;
322 int rsn_ie_len;
323
324 if (!buffer || !(*buffer))
325 return 0;
326
327 rsn_ie_tlv = (struct mwifiex_ie_types_rsn_param_set *) (*buffer);
328 rsn_ie_tlv->header.type = cpu_to_le16((u16) priv->wpa_ie[0]);
329 rsn_ie_tlv->header.type = cpu_to_le16(
330 le16_to_cpu(rsn_ie_tlv->header.type) & 0x00FF);
331 rsn_ie_tlv->header.len = cpu_to_le16((u16) priv->wpa_ie[1]);
332 rsn_ie_tlv->header.len = cpu_to_le16(le16_to_cpu(rsn_ie_tlv->header.len)
333 & 0x00FF);
334 if (le16_to_cpu(rsn_ie_tlv->header.len) <= (sizeof(priv->wpa_ie) - 2))
335 memcpy(rsn_ie_tlv->rsn_ie, &priv->wpa_ie[2],
336 le16_to_cpu(rsn_ie_tlv->header.len));
337 else
338 return -1;
339
340 rsn_ie_len = sizeof(rsn_ie_tlv->header) +
341 le16_to_cpu(rsn_ie_tlv->header.len);
342 *buffer += rsn_ie_len;
343
344 return rsn_ie_len;
345}
346
347/*
348 * This function prepares command for association.
349 *
350 * This sets the following parameters -
351 * - Peer MAC address
352 * - Listen interval
353 * - Beacon interval
354 * - Capability information
355 *
356 * ...and the following TLVs, as required -
357 * - SSID TLV
358 * - PHY TLV
359 * - SS TLV
360 * - Rates TLV
361 * - Authentication TLV
362 * - Channel TLV
363 * - WPA/WPA2 IE
364 * - 11n TLV
365 * - Vendor specific TLV
366 * - WMM TLV
367 * - WAPI IE
368 * - Generic IE
369 * - TSF TLV
370 *
371 * Preparation also includes -
372 * - Setting command ID and proper size
373 * - Ensuring correct endian-ness
374 */
375int mwifiex_cmd_802_11_associate(struct mwifiex_private *priv,
376 struct host_cmd_ds_command *cmd,
377 struct mwifiex_bssdescriptor *bss_desc)
378{
379 struct host_cmd_ds_802_11_associate *assoc = &cmd->params.associate;
380 struct mwifiex_ie_types_ssid_param_set *ssid_tlv;
381 struct mwifiex_ie_types_phy_param_set *phy_tlv;
382 struct mwifiex_ie_types_ss_param_set *ss_tlv;
383 struct mwifiex_ie_types_rates_param_set *rates_tlv;
384 struct mwifiex_ie_types_auth_type *auth_tlv;
385 struct mwifiex_ie_types_sae_pwe_mode *sae_pwe_tlv;
386 struct mwifiex_ie_types_chan_list_param_set *chan_tlv;
387 struct mwifiex_ie_types_host_mlme *host_mlme_tlv;
388 u8 rates[MWIFIEX_SUPPORTED_RATES];
389 u32 rates_size;
390 u16 tmp_cap;
391 u8 *pos;
392 int rsn_ie_len = 0;
393
394 pos = (u8 *) assoc;
395
396 cmd->command = cpu_to_le16(HostCmd_CMD_802_11_ASSOCIATE);
397
398 /* Save so we know which BSS Desc to use in the response handler */
399 priv->attempted_bss_desc = bss_desc;
400
401 memcpy(assoc->peer_sta_addr,
402 bss_desc->mac_address, sizeof(assoc->peer_sta_addr));
403 pos += sizeof(assoc->peer_sta_addr);
404
405 /* Set the listen interval */
406 assoc->listen_interval = cpu_to_le16(priv->listen_interval);
407 /* Set the beacon period */
408 assoc->beacon_period = cpu_to_le16(bss_desc->beacon_period);
409
410 pos += sizeof(assoc->cap_info_bitmap);
411 pos += sizeof(assoc->listen_interval);
412 pos += sizeof(assoc->beacon_period);
413 pos += sizeof(assoc->dtim_period);
414
415 ssid_tlv = (struct mwifiex_ie_types_ssid_param_set *) pos;
416 ssid_tlv->header.type = cpu_to_le16(WLAN_EID_SSID);
417 ssid_tlv->header.len = cpu_to_le16((u16) bss_desc->ssid.ssid_len);
418 memcpy(ssid_tlv->ssid, bss_desc->ssid.ssid,
419 le16_to_cpu(ssid_tlv->header.len));
420 pos += sizeof(ssid_tlv->header) + le16_to_cpu(ssid_tlv->header.len);
421
422 phy_tlv = (struct mwifiex_ie_types_phy_param_set *) pos;
423 phy_tlv->header.type = cpu_to_le16(WLAN_EID_DS_PARAMS);
424 phy_tlv->header.len = cpu_to_le16(sizeof(phy_tlv->fh_ds.ds_param_set));
425 memcpy(&phy_tlv->fh_ds.ds_param_set,
426 &bss_desc->phy_param_set.ds_param_set.current_chan,
427 sizeof(phy_tlv->fh_ds.ds_param_set));
428 pos += sizeof(phy_tlv->header) + le16_to_cpu(phy_tlv->header.len);
429
430 ss_tlv = (struct mwifiex_ie_types_ss_param_set *) pos;
431 ss_tlv->header.type = cpu_to_le16(WLAN_EID_CF_PARAMS);
432 ss_tlv->header.len = cpu_to_le16(sizeof(ss_tlv->cf_ibss.cf_param_set));
433 pos += sizeof(ss_tlv->header) + le16_to_cpu(ss_tlv->header.len);
434
435 /* Get the common rates supported between the driver and the BSS Desc */
436 if (mwifiex_setup_rates_from_bssdesc
437 (priv, bss_desc, rates, &rates_size))
438 return -1;
439
440 /* Save the data rates into Current BSS state structure */
441 priv->curr_bss_params.num_of_rates = rates_size;
442 memcpy(&priv->curr_bss_params.data_rates, rates, rates_size);
443
444 /* Setup the Rates TLV in the association command */
445 rates_tlv = (struct mwifiex_ie_types_rates_param_set *) pos;
446 rates_tlv->header.type = cpu_to_le16(WLAN_EID_SUPP_RATES);
447 rates_tlv->header.len = cpu_to_le16((u16) rates_size);
448 memcpy(rates_tlv->rates, rates, rates_size);
449 pos += sizeof(rates_tlv->header) + rates_size;
450 mwifiex_dbg(priv->adapter, INFO, "info: ASSOC_CMD: rates size = %d\n",
451 rates_size);
452
453 /* Add the Authentication type to be used for Auth frames */
454 auth_tlv = (struct mwifiex_ie_types_auth_type *) pos;
455 auth_tlv->header.type = cpu_to_le16(TLV_TYPE_AUTH_TYPE);
456 auth_tlv->header.len = cpu_to_le16(sizeof(auth_tlv->auth_type));
457 if (priv->sec_info.wep_enabled)
458 auth_tlv->auth_type = cpu_to_le16(
459 (u16) priv->sec_info.authentication_mode);
460 else
461 auth_tlv->auth_type = cpu_to_le16(NL80211_AUTHTYPE_OPEN_SYSTEM);
462
463 pos += sizeof(auth_tlv->header) + le16_to_cpu(auth_tlv->header.len);
464
465 if (priv->sec_info.authentication_mode == WLAN_AUTH_SAE) {
466 auth_tlv->auth_type = cpu_to_le16(MWIFIEX_AUTHTYPE_SAE);
467 if (bss_desc->bcn_rsnx_ie &&
468 bss_desc->bcn_rsnx_ie->ieee_hdr.len &&
469 (bss_desc->bcn_rsnx_ie->data[0] &
470 WLAN_RSNX_CAPA_SAE_H2E)) {
471 sae_pwe_tlv =
472 (struct mwifiex_ie_types_sae_pwe_mode *)pos;
473 sae_pwe_tlv->header.type =
474 cpu_to_le16(TLV_TYPE_SAE_PWE_MODE);
475 sae_pwe_tlv->header.len =
476 cpu_to_le16(sizeof(sae_pwe_tlv->pwe[0]));
477 sae_pwe_tlv->pwe[0] = bss_desc->bcn_rsnx_ie->data[0];
478 pos += sizeof(sae_pwe_tlv->header) +
479 sizeof(sae_pwe_tlv->pwe[0]);
480 }
481 }
482
483 if (IS_SUPPORT_MULTI_BANDS(priv->adapter) &&
484 !(ISSUPP_11NENABLED(priv->adapter->fw_cap_info) &&
485 (!bss_desc->disable_11n) &&
486 (priv->adapter->config_bands & BAND_GN ||
487 priv->adapter->config_bands & BAND_AN) &&
488 (bss_desc->bcn_ht_cap)
489 )
490 ) {
491 /* Append a channel TLV for the channel the attempted AP was
492 found on */
493 chan_tlv = (struct mwifiex_ie_types_chan_list_param_set *) pos;
494 chan_tlv->header.type = cpu_to_le16(TLV_TYPE_CHANLIST);
495 chan_tlv->header.len =
496 cpu_to_le16(sizeof(struct mwifiex_chan_scan_param_set));
497
498 memset(chan_tlv->chan_scan_param, 0x00,
499 sizeof(struct mwifiex_chan_scan_param_set));
500 chan_tlv->chan_scan_param[0].chan_number =
501 (bss_desc->phy_param_set.ds_param_set.current_chan);
502 mwifiex_dbg(priv->adapter, INFO, "info: Assoc: TLV Chan = %d\n",
503 chan_tlv->chan_scan_param[0].chan_number);
504
505 chan_tlv->chan_scan_param[0].radio_type =
506 mwifiex_band_to_radio_type((u8) bss_desc->bss_band);
507
508 mwifiex_dbg(priv->adapter, INFO, "info: Assoc: TLV Band = %d\n",
509 chan_tlv->chan_scan_param[0].radio_type);
510 pos += sizeof(chan_tlv->header) +
511 sizeof(struct mwifiex_chan_scan_param_set);
512 }
513
514 if (priv->adapter->host_mlme_enabled) {
515 host_mlme_tlv = (struct mwifiex_ie_types_host_mlme *)pos;
516 host_mlme_tlv->header.type = cpu_to_le16(TLV_TYPE_HOST_MLME);
517 host_mlme_tlv->header.len =
518 cpu_to_le16(sizeof(host_mlme_tlv->host_mlme));
519 host_mlme_tlv->host_mlme = 1;
520 pos += sizeof(host_mlme_tlv->header) +
521 sizeof(host_mlme_tlv->host_mlme);
522 }
523
524 if (!priv->wps.session_enable) {
525 if (priv->sec_info.wpa_enabled || priv->sec_info.wpa2_enabled)
526 rsn_ie_len = mwifiex_append_rsn_ie_wpa_wpa2(priv, &pos);
527
528 if (rsn_ie_len == -1)
529 return -1;
530 }
531
532 if (ISSUPP_11NENABLED(priv->adapter->fw_cap_info) &&
533 (!bss_desc->disable_11n) &&
534 (priv->adapter->config_bands & BAND_GN ||
535 priv->adapter->config_bands & BAND_AN))
536 mwifiex_cmd_append_11n_tlv(priv, bss_desc, &pos);
537
538 if (ISSUPP_11ACENABLED(priv->adapter->fw_cap_info) &&
539 !bss_desc->disable_11n && !bss_desc->disable_11ac &&
540 priv->adapter->config_bands & BAND_AAC)
541 mwifiex_cmd_append_11ac_tlv(priv, bss_desc, &pos);
542
543 /* Append vendor specific IE TLV */
544 mwifiex_cmd_append_vsie_tlv(priv, MWIFIEX_VSIE_MASK_ASSOC, &pos);
545
546 mwifiex_wmm_process_association_req(priv, &pos, &bss_desc->wmm_ie,
547 bss_desc->bcn_ht_cap);
548 if (priv->sec_info.wapi_enabled && priv->wapi_ie_len)
549 mwifiex_cmd_append_wapi_ie(priv, &pos);
550
551 if (priv->wps.session_enable && priv->wps_ie_len)
552 mwifiex_cmd_append_wps_ie(priv, &pos);
553
554 mwifiex_cmd_append_generic_ie(priv, &pos);
555
556 mwifiex_cmd_append_tsf_tlv(priv, &pos, bss_desc);
557
558 mwifiex_11h_process_join(priv, &pos, bss_desc);
559
560 cmd->size = cpu_to_le16((u16) (pos - (u8 *) assoc) + S_DS_GEN);
561
562 /* Set the Capability info at last */
563 tmp_cap = bss_desc->cap_info_bitmap;
564
565 if (priv->adapter->config_bands == BAND_B)
566 tmp_cap &= ~WLAN_CAPABILITY_SHORT_SLOT_TIME;
567
568 tmp_cap &= CAPINFO_MASK;
569 mwifiex_dbg(priv->adapter, INFO,
570 "info: ASSOC_CMD: tmp_cap=%4X CAPINFO_MASK=%4lX\n",
571 tmp_cap, CAPINFO_MASK);
572 assoc->cap_info_bitmap = cpu_to_le16(tmp_cap);
573
574 return 0;
575}
576
577static const char *assoc_failure_reason_to_str(u16 cap_info)
578{
579 switch (cap_info) {
580 case CONNECT_ERR_AUTH_ERR_STA_FAILURE:
581 return "CONNECT_ERR_AUTH_ERR_STA_FAILURE";
582 case CONNECT_ERR_AUTH_MSG_UNHANDLED:
583 return "CONNECT_ERR_AUTH_MSG_UNHANDLED";
584 case CONNECT_ERR_ASSOC_ERR_TIMEOUT:
585 return "CONNECT_ERR_ASSOC_ERR_TIMEOUT";
586 case CONNECT_ERR_ASSOC_ERR_AUTH_REFUSED:
587 return "CONNECT_ERR_ASSOC_ERR_AUTH_REFUSED";
588 case CONNECT_ERR_STA_FAILURE:
589 return "CONNECT_ERR_STA_FAILURE";
590 }
591
592 return "Unknown connect failure";
593}
594/*
595 * Association firmware command response handler
596 *
597 * The response buffer for the association command has the following
598 * memory layout.
599 *
600 * For cases where an association response was not received (indicated
601 * by the CapInfo and AId field):
602 *
603 * .------------------------------------------------------------.
604 * | Header(4 * sizeof(t_u16)): Standard command response hdr |
605 * .------------------------------------------------------------.
606 * | cap_info/Error Return(t_u16): |
607 * | 0xFFFF(-1): Internal error |
608 * | 0xFFFE(-2): Authentication unhandled message |
609 * | 0xFFFD(-3): Authentication refused |
610 * | 0xFFFC(-4): Timeout waiting for AP response |
611 * .------------------------------------------------------------.
612 * | status_code(t_u16): |
613 * | If cap_info is -1: |
614 * | An internal firmware failure prevented the |
615 * | command from being processed. The status_code |
616 * | will be set to 1. |
617 * | |
618 * | If cap_info is -2: |
619 * | An authentication frame was received but was |
620 * | not handled by the firmware. IEEE Status |
621 * | code for the failure is returned. |
622 * | |
623 * | If cap_info is -3: |
624 * | An authentication frame was received and the |
625 * | status_code is the IEEE Status reported in the |
626 * | response. |
627 * | |
628 * | If cap_info is -4: |
629 * | (1) Association response timeout |
630 * | (2) Authentication response timeout |
631 * .------------------------------------------------------------.
632 * | a_id(t_u16): 0xFFFF |
633 * .------------------------------------------------------------.
634 *
635 *
636 * For cases where an association response was received, the IEEE
637 * standard association response frame is returned:
638 *
639 * .------------------------------------------------------------.
640 * | Header(4 * sizeof(t_u16)): Standard command response hdr |
641 * .------------------------------------------------------------.
642 * | cap_info(t_u16): IEEE Capability |
643 * .------------------------------------------------------------.
644 * | status_code(t_u16): IEEE Status Code |
645 * .------------------------------------------------------------.
646 * | a_id(t_u16): IEEE Association ID |
647 * .------------------------------------------------------------.
648 * | IEEE IEs(variable): Any received IEs comprising the |
649 * | remaining portion of a received |
650 * | association response frame. |
651 * .------------------------------------------------------------.
652 *
653 * For simplistic handling, the status_code field can be used to determine
654 * an association success (0) or failure (non-zero).
655 */
656int mwifiex_ret_802_11_associate(struct mwifiex_private *priv,
657 struct host_cmd_ds_command *resp)
658{
659 struct mwifiex_adapter *adapter = priv->adapter;
660 int ret = 0;
661 struct ieee_types_assoc_rsp *assoc_rsp;
662 struct mwifiex_bssdescriptor *bss_desc;
663 bool enable_data = true;
664 u16 cap_info, status_code, aid;
665 const u8 *ie_ptr;
666
667 if (!priv->attempted_bss_desc) {
668 mwifiex_dbg(priv->adapter, ERROR,
669 "ASSOC_RESP: failed, association terminated by host\n");
670 goto done;
671 }
672
673 if (adapter->host_mlme_enabled) {
674 struct ieee80211_mgmt *hdr;
675
676 hdr = (struct ieee80211_mgmt *)&resp->params;
677 if (!memcmp(hdr->bssid,
678 priv->attempted_bss_desc->mac_address,
679 ETH_ALEN))
680 assoc_rsp = (struct ieee_types_assoc_rsp *)
681 &hdr->u.assoc_resp;
682 else
683 assoc_rsp =
684 (struct ieee_types_assoc_rsp *)&resp->params;
685 } else {
686 assoc_rsp = (struct ieee_types_assoc_rsp *)&resp->params;
687 }
688
689 cap_info = le16_to_cpu(assoc_rsp->cap_info_bitmap);
690 status_code = le16_to_cpu(assoc_rsp->status_code);
691 aid = le16_to_cpu(assoc_rsp->a_id);
692
693 if ((aid & (BIT(15) | BIT(14))) != (BIT(15) | BIT(14)))
694 dev_err(priv->adapter->dev,
695 "invalid AID value 0x%x; bits 15:14 not set\n",
696 aid);
697
698 aid &= ~(BIT(15) | BIT(14));
699
700 priv->assoc_rsp_size = min(le16_to_cpu(resp->size) - S_DS_GEN,
701 sizeof(priv->assoc_rsp_buf));
702
703 assoc_rsp->a_id = cpu_to_le16(aid);
704 memcpy(priv->assoc_rsp_buf, &resp->params, priv->assoc_rsp_size);
705
706 if (status_code) {
707 priv->adapter->dbg.num_cmd_assoc_failure++;
708 mwifiex_dbg(priv->adapter, ERROR,
709 "ASSOC_RESP: failed,\t"
710 "status code=%d err=%#x a_id=%#x\n",
711 status_code, cap_info,
712 le16_to_cpu(assoc_rsp->a_id));
713
714 mwifiex_dbg(priv->adapter, ERROR, "assoc failure: reason %s\n",
715 assoc_failure_reason_to_str(cap_info));
716 if (cap_info == CONNECT_ERR_ASSOC_ERR_TIMEOUT) {
717 if (status_code == MWIFIEX_ASSOC_CMD_FAILURE_AUTH) {
718 ret = WLAN_STATUS_AUTH_TIMEOUT;
719 mwifiex_dbg(priv->adapter, ERROR,
720 "ASSOC_RESP: AUTH timeout\n");
721 } else {
722 ret = WLAN_STATUS_UNSPECIFIED_FAILURE;
723 mwifiex_dbg(priv->adapter, ERROR,
724 "ASSOC_RESP: UNSPECIFIED failure\n");
725 }
726
727 if (priv->adapter->host_mlme_enabled)
728 priv->assoc_rsp_size = 0;
729 } else {
730 ret = status_code;
731 }
732
733 goto done;
734 }
735
736 /* Send a Media Connected event, according to the Spec */
737 priv->media_connected = true;
738
739 priv->adapter->ps_state = PS_STATE_AWAKE;
740 priv->adapter->pps_uapsd_mode = false;
741 priv->adapter->tx_lock_flag = false;
742
743 /* Set the attempted BSSID Index to current */
744 bss_desc = priv->attempted_bss_desc;
745
746 mwifiex_dbg(priv->adapter, INFO, "info: ASSOC_RESP: %s\n",
747 bss_desc->ssid.ssid);
748
749 /* Make a copy of current BSSID descriptor */
750 memcpy(&priv->curr_bss_params.bss_descriptor,
751 bss_desc, sizeof(struct mwifiex_bssdescriptor));
752
753 /* Update curr_bss_params */
754 priv->curr_bss_params.bss_descriptor.channel
755 = bss_desc->phy_param_set.ds_param_set.current_chan;
756
757 priv->curr_bss_params.band = (u8) bss_desc->bss_band;
758
759 if (bss_desc->wmm_ie.vend_hdr.element_id == WLAN_EID_VENDOR_SPECIFIC)
760 priv->curr_bss_params.wmm_enabled = true;
761 else
762 priv->curr_bss_params.wmm_enabled = false;
763
764 if ((priv->wmm_required || bss_desc->bcn_ht_cap) &&
765 priv->curr_bss_params.wmm_enabled)
766 priv->wmm_enabled = true;
767 else
768 priv->wmm_enabled = false;
769
770 priv->curr_bss_params.wmm_uapsd_enabled = false;
771
772 if (priv->wmm_enabled)
773 priv->curr_bss_params.wmm_uapsd_enabled
774 = ((bss_desc->wmm_ie.qos_info_bitmap &
775 IEEE80211_WMM_IE_AP_QOSINFO_UAPSD) ? 1 : 0);
776
777 /* Store the bandwidth information from assoc response */
778 ie_ptr = cfg80211_find_ie(WLAN_EID_HT_OPERATION, assoc_rsp->ie_buffer,
779 priv->assoc_rsp_size
780 - sizeof(struct ieee_types_assoc_rsp));
781
782 priv->ht_param_present = ie_ptr ? true : false;
783
784 mwifiex_dbg(priv->adapter, INFO,
785 "info: ASSOC_RESP: curr_pkt_filter is %#x\n",
786 priv->curr_pkt_filter);
787 if (priv->sec_info.wpa_enabled || priv->sec_info.wpa2_enabled)
788 priv->wpa_is_gtk_set = false;
789
790 if (priv->wmm_enabled) {
791 /* Don't re-enable carrier until we get the WMM_GET_STATUS
792 event */
793 enable_data = false;
794 } else {
795 /* Since WMM is not enabled, setup the queues with the
796 defaults */
797 mwifiex_wmm_setup_queue_priorities(priv, NULL);
798 mwifiex_wmm_setup_ac_downgrade(priv);
799 }
800
801 if (enable_data)
802 mwifiex_dbg(priv->adapter, INFO,
803 "info: post association, re-enabling data flow\n");
804
805 /* Reset SNR/NF/RSSI values */
806 priv->data_rssi_last = 0;
807 priv->data_nf_last = 0;
808 priv->data_rssi_avg = 0;
809 priv->data_nf_avg = 0;
810 priv->bcn_rssi_last = 0;
811 priv->bcn_nf_last = 0;
812 priv->bcn_rssi_avg = 0;
813 priv->bcn_nf_avg = 0;
814 priv->rxpd_rate = 0;
815 priv->rxpd_htinfo = 0;
816
817 mwifiex_save_curr_bcn(priv);
818
819 priv->adapter->dbg.num_cmd_assoc_success++;
820
821 mwifiex_dbg(priv->adapter, MSG, "assoc: associated with %pM\n",
822 priv->attempted_bss_desc->mac_address);
823
824 /* Add the ra_list here for infra mode as there will be only 1 ra
825 always */
826 mwifiex_ralist_add(priv,
827 priv->curr_bss_params.bss_descriptor.mac_address);
828
829 if (!netif_carrier_ok(priv->netdev))
830 netif_carrier_on(priv->netdev);
831 mwifiex_wake_up_net_dev_queue(priv->netdev, adapter);
832
833 if (priv->sec_info.wpa_enabled || priv->sec_info.wpa2_enabled)
834 priv->scan_block = true;
835 else
836 priv->port_open = true;
837
838done:
839 /* Need to indicate IOCTL complete */
840 if (adapter->curr_cmd->wait_q_enabled) {
841 if (ret)
842 adapter->cmd_wait_q.status = -1;
843 else
844 adapter->cmd_wait_q.status = 0;
845 }
846
847 return ret;
848}
849
850/*
851 * This function prepares command for ad-hoc start.
852 *
853 * Driver will fill up SSID, BSS mode, IBSS parameters, physical
854 * parameters, probe delay, and capability information. Firmware
855 * will fill up beacon period, basic rates and operational rates.
856 *
857 * In addition, the following TLVs are added -
858 * - Channel TLV
859 * - Vendor specific IE
860 * - WPA/WPA2 IE
861 * - HT Capabilities IE
862 * - HT Information IE
863 *
864 * Preparation also includes -
865 * - Setting command ID and proper size
866 * - Ensuring correct endian-ness
867 */
868int
869mwifiex_cmd_802_11_ad_hoc_start(struct mwifiex_private *priv,
870 struct host_cmd_ds_command *cmd,
871 struct cfg80211_ssid *req_ssid)
872{
873 int rsn_ie_len = 0;
874 struct mwifiex_adapter *adapter = priv->adapter;
875 struct host_cmd_ds_802_11_ad_hoc_start *adhoc_start =
876 &cmd->params.adhoc_start;
877 struct mwifiex_bssdescriptor *bss_desc;
878 u32 cmd_append_size = 0;
879 u32 i;
880 u16 tmp_cap;
881 struct mwifiex_ie_types_chan_list_param_set *chan_tlv;
882 u8 radio_type;
883
884 struct mwifiex_ie_types_htcap *ht_cap;
885 struct mwifiex_ie_types_htinfo *ht_info;
886 u8 *pos = (u8 *) adhoc_start +
887 sizeof(struct host_cmd_ds_802_11_ad_hoc_start);
888
889 if (!adapter)
890 return -1;
891
892 cmd->command = cpu_to_le16(HostCmd_CMD_802_11_AD_HOC_START);
893
894 bss_desc = &priv->curr_bss_params.bss_descriptor;
895 priv->attempted_bss_desc = bss_desc;
896
897 /*
898 * Fill in the parameters for 2 data structures:
899 * 1. struct host_cmd_ds_802_11_ad_hoc_start command
900 * 2. bss_desc
901 * Driver will fill up SSID, bss_mode,IBSS param, Physical Param,
902 * probe delay, and Cap info.
903 * Firmware will fill up beacon period, Basic rates
904 * and operational rates.
905 */
906
907 memset(adhoc_start->ssid, 0, IEEE80211_MAX_SSID_LEN);
908
909 if (req_ssid->ssid_len > IEEE80211_MAX_SSID_LEN)
910 req_ssid->ssid_len = IEEE80211_MAX_SSID_LEN;
911 memcpy(adhoc_start->ssid, req_ssid->ssid, req_ssid->ssid_len);
912
913 mwifiex_dbg(adapter, INFO, "info: ADHOC_S_CMD: SSID = %s\n",
914 adhoc_start->ssid);
915
916 memset(bss_desc->ssid.ssid, 0, IEEE80211_MAX_SSID_LEN);
917 memcpy(bss_desc->ssid.ssid, req_ssid->ssid, req_ssid->ssid_len);
918
919 bss_desc->ssid.ssid_len = req_ssid->ssid_len;
920
921 /* Set the BSS mode */
922 adhoc_start->bss_mode = HostCmd_BSS_MODE_IBSS;
923 bss_desc->bss_mode = NL80211_IFTYPE_ADHOC;
924 adhoc_start->beacon_period = cpu_to_le16(priv->beacon_period);
925 bss_desc->beacon_period = priv->beacon_period;
926
927 /* Set Physical param set */
928/* Parameter IE Id */
929#define DS_PARA_IE_ID 3
930/* Parameter IE length */
931#define DS_PARA_IE_LEN 1
932
933 adhoc_start->phy_param_set.ds_param_set.element_id = DS_PARA_IE_ID;
934 adhoc_start->phy_param_set.ds_param_set.len = DS_PARA_IE_LEN;
935
936 if (!mwifiex_get_cfp(priv, adapter->adhoc_start_band,
937 (u16) priv->adhoc_channel, 0)) {
938 struct mwifiex_chan_freq_power *cfp;
939 cfp = mwifiex_get_cfp(priv, adapter->adhoc_start_band,
940 FIRST_VALID_CHANNEL, 0);
941 if (cfp)
942 priv->adhoc_channel = (u8) cfp->channel;
943 }
944
945 if (!priv->adhoc_channel) {
946 mwifiex_dbg(adapter, ERROR,
947 "ADHOC_S_CMD: adhoc_channel cannot be 0\n");
948 return -1;
949 }
950
951 mwifiex_dbg(adapter, INFO,
952 "info: ADHOC_S_CMD: creating ADHOC on channel %d\n",
953 priv->adhoc_channel);
954
955 priv->curr_bss_params.bss_descriptor.channel = priv->adhoc_channel;
956 priv->curr_bss_params.band = adapter->adhoc_start_band;
957
958 bss_desc->channel = priv->adhoc_channel;
959 adhoc_start->phy_param_set.ds_param_set.current_chan =
960 priv->adhoc_channel;
961
962 memcpy(&bss_desc->phy_param_set, &adhoc_start->phy_param_set,
963 sizeof(union ieee_types_phy_param_set));
964
965 /* Set IBSS param set */
966/* IBSS parameter IE Id */
967#define IBSS_PARA_IE_ID 6
968/* IBSS parameter IE length */
969#define IBSS_PARA_IE_LEN 2
970
971 adhoc_start->ss_param_set.ibss_param_set.element_id = IBSS_PARA_IE_ID;
972 adhoc_start->ss_param_set.ibss_param_set.len = IBSS_PARA_IE_LEN;
973 adhoc_start->ss_param_set.ibss_param_set.atim_window
974 = cpu_to_le16(priv->atim_window);
975 memcpy(&bss_desc->ss_param_set, &adhoc_start->ss_param_set,
976 sizeof(union ieee_types_ss_param_set));
977
978 /* Set Capability info */
979 bss_desc->cap_info_bitmap |= WLAN_CAPABILITY_IBSS;
980 tmp_cap = WLAN_CAPABILITY_IBSS;
981
982 /* Set up privacy in bss_desc */
983 if (priv->sec_info.encryption_mode) {
984 /* Ad-Hoc capability privacy on */
985 mwifiex_dbg(adapter, INFO,
986 "info: ADHOC_S_CMD: wep_status set privacy to WEP\n");
987 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_8021X_WEP;
988 tmp_cap |= WLAN_CAPABILITY_PRIVACY;
989 } else {
990 mwifiex_dbg(adapter, INFO,
991 "info: ADHOC_S_CMD: wep_status NOT set,\t"
992 "setting privacy to ACCEPT ALL\n");
993 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_ACCEPT_ALL;
994 }
995
996 memset(adhoc_start->data_rate, 0, sizeof(adhoc_start->data_rate));
997 mwifiex_get_active_data_rates(priv, adhoc_start->data_rate);
998 if ((adapter->adhoc_start_band & BAND_G) &&
999 (priv->curr_pkt_filter & HostCmd_ACT_MAC_ADHOC_G_PROTECTION_ON)) {
1000 if (mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL,
1001 HostCmd_ACT_GEN_SET, 0,
1002 &priv->curr_pkt_filter, false)) {
1003 mwifiex_dbg(adapter, ERROR,
1004 "ADHOC_S_CMD: G Protection config failed\n");
1005 return -1;
1006 }
1007 }
1008 /* Find the last non zero */
1009 for (i = 0; i < sizeof(adhoc_start->data_rate); i++)
1010 if (!adhoc_start->data_rate[i])
1011 break;
1012
1013 priv->curr_bss_params.num_of_rates = i;
1014
1015 /* Copy the ad-hoc creating rates into Current BSS rate structure */
1016 memcpy(&priv->curr_bss_params.data_rates,
1017 &adhoc_start->data_rate, priv->curr_bss_params.num_of_rates);
1018
1019 mwifiex_dbg(adapter, INFO, "info: ADHOC_S_CMD: rates=%4ph\n",
1020 adhoc_start->data_rate);
1021
1022 mwifiex_dbg(adapter, INFO, "info: ADHOC_S_CMD: AD-HOC Start command is ready\n");
1023
1024 if (IS_SUPPORT_MULTI_BANDS(adapter)) {
1025 /* Append a channel TLV */
1026 chan_tlv = (struct mwifiex_ie_types_chan_list_param_set *) pos;
1027 chan_tlv->header.type = cpu_to_le16(TLV_TYPE_CHANLIST);
1028 chan_tlv->header.len =
1029 cpu_to_le16(sizeof(struct mwifiex_chan_scan_param_set));
1030
1031 memset(chan_tlv->chan_scan_param, 0x00,
1032 sizeof(struct mwifiex_chan_scan_param_set));
1033 chan_tlv->chan_scan_param[0].chan_number =
1034 (u8) priv->curr_bss_params.bss_descriptor.channel;
1035
1036 mwifiex_dbg(adapter, INFO, "info: ADHOC_S_CMD: TLV Chan = %d\n",
1037 chan_tlv->chan_scan_param[0].chan_number);
1038
1039 chan_tlv->chan_scan_param[0].radio_type
1040 = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1041 if (adapter->adhoc_start_band & BAND_GN ||
1042 adapter->adhoc_start_band & BAND_AN) {
1043 if (adapter->sec_chan_offset ==
1044 IEEE80211_HT_PARAM_CHA_SEC_ABOVE)
1045 chan_tlv->chan_scan_param[0].radio_type |=
1046 (IEEE80211_HT_PARAM_CHA_SEC_ABOVE << 4);
1047 else if (adapter->sec_chan_offset ==
1048 IEEE80211_HT_PARAM_CHA_SEC_BELOW)
1049 chan_tlv->chan_scan_param[0].radio_type |=
1050 (IEEE80211_HT_PARAM_CHA_SEC_BELOW << 4);
1051 }
1052 mwifiex_dbg(adapter, INFO, "info: ADHOC_S_CMD: TLV Band = %d\n",
1053 chan_tlv->chan_scan_param[0].radio_type);
1054 pos += sizeof(chan_tlv->header) +
1055 sizeof(struct mwifiex_chan_scan_param_set);
1056 cmd_append_size +=
1057 sizeof(chan_tlv->header) +
1058 sizeof(struct mwifiex_chan_scan_param_set);
1059 }
1060
1061 /* Append vendor specific IE TLV */
1062 cmd_append_size += mwifiex_cmd_append_vsie_tlv(priv,
1063 MWIFIEX_VSIE_MASK_ADHOC, &pos);
1064
1065 if (priv->sec_info.wpa_enabled) {
1066 rsn_ie_len = mwifiex_append_rsn_ie_wpa_wpa2(priv, &pos);
1067 if (rsn_ie_len == -1)
1068 return -1;
1069 cmd_append_size += rsn_ie_len;
1070 }
1071
1072 if (adapter->adhoc_11n_enabled) {
1073 /* Fill HT CAPABILITY */
1074 ht_cap = (struct mwifiex_ie_types_htcap *) pos;
1075 memset(ht_cap, 0, sizeof(struct mwifiex_ie_types_htcap));
1076 ht_cap->header.type = cpu_to_le16(WLAN_EID_HT_CAPABILITY);
1077 ht_cap->header.len =
1078 cpu_to_le16(sizeof(struct ieee80211_ht_cap));
1079 radio_type = mwifiex_band_to_radio_type(
1080 priv->adapter->config_bands);
1081 mwifiex_fill_cap_info(priv, radio_type, &ht_cap->ht_cap);
1082
1083 if (adapter->sec_chan_offset ==
1084 IEEE80211_HT_PARAM_CHA_SEC_NONE) {
1085 u16 tmp_ht_cap;
1086
1087 tmp_ht_cap = le16_to_cpu(ht_cap->ht_cap.cap_info);
1088 tmp_ht_cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1089 tmp_ht_cap &= ~IEEE80211_HT_CAP_SGI_40;
1090 ht_cap->ht_cap.cap_info = cpu_to_le16(tmp_ht_cap);
1091 }
1092
1093 pos += sizeof(struct mwifiex_ie_types_htcap);
1094 cmd_append_size += sizeof(struct mwifiex_ie_types_htcap);
1095
1096 /* Fill HT INFORMATION */
1097 ht_info = (struct mwifiex_ie_types_htinfo *) pos;
1098 memset(ht_info, 0, sizeof(struct mwifiex_ie_types_htinfo));
1099 ht_info->header.type = cpu_to_le16(WLAN_EID_HT_OPERATION);
1100 ht_info->header.len =
1101 cpu_to_le16(sizeof(struct ieee80211_ht_operation));
1102
1103 ht_info->ht_oper.primary_chan =
1104 (u8) priv->curr_bss_params.bss_descriptor.channel;
1105 if (adapter->sec_chan_offset) {
1106 ht_info->ht_oper.ht_param = adapter->sec_chan_offset;
1107 ht_info->ht_oper.ht_param |=
1108 IEEE80211_HT_PARAM_CHAN_WIDTH_ANY;
1109 }
1110 ht_info->ht_oper.operation_mode =
1111 cpu_to_le16(IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
1112 ht_info->ht_oper.basic_set[0] = 0xff;
1113 pos += sizeof(struct mwifiex_ie_types_htinfo);
1114 cmd_append_size +=
1115 sizeof(struct mwifiex_ie_types_htinfo);
1116 }
1117
1118 cmd->size =
1119 cpu_to_le16((u16)(sizeof(struct host_cmd_ds_802_11_ad_hoc_start)
1120 + S_DS_GEN + cmd_append_size));
1121
1122 if (adapter->adhoc_start_band == BAND_B)
1123 tmp_cap &= ~WLAN_CAPABILITY_SHORT_SLOT_TIME;
1124 else
1125 tmp_cap |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
1126
1127 adhoc_start->cap_info_bitmap = cpu_to_le16(tmp_cap);
1128
1129 return 0;
1130}
1131
1132/*
1133 * This function prepares command for ad-hoc join.
1134 *
1135 * Most of the parameters are set up by copying from the target BSS descriptor
1136 * from the scan response.
1137 *
1138 * In addition, the following TLVs are added -
1139 * - Channel TLV
1140 * - Vendor specific IE
1141 * - WPA/WPA2 IE
1142 * - 11n IE
1143 *
1144 * Preparation also includes -
1145 * - Setting command ID and proper size
1146 * - Ensuring correct endian-ness
1147 */
1148int
1149mwifiex_cmd_802_11_ad_hoc_join(struct mwifiex_private *priv,
1150 struct host_cmd_ds_command *cmd,
1151 struct mwifiex_bssdescriptor *bss_desc)
1152{
1153 int rsn_ie_len = 0;
1154 struct host_cmd_ds_802_11_ad_hoc_join *adhoc_join =
1155 &cmd->params.adhoc_join;
1156 struct mwifiex_ie_types_chan_list_param_set *chan_tlv;
1157 u32 cmd_append_size = 0;
1158 u16 tmp_cap;
1159 u32 i, rates_size = 0;
1160 u16 curr_pkt_filter;
1161 u8 *pos =
1162 (u8 *) adhoc_join +
1163 sizeof(struct host_cmd_ds_802_11_ad_hoc_join);
1164
1165/* Use G protection */
1166#define USE_G_PROTECTION 0x02
1167 if (bss_desc->erp_flags & USE_G_PROTECTION) {
1168 curr_pkt_filter =
1169 priv->
1170 curr_pkt_filter | HostCmd_ACT_MAC_ADHOC_G_PROTECTION_ON;
1171
1172 if (mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL,
1173 HostCmd_ACT_GEN_SET, 0,
1174 &curr_pkt_filter, false)) {
1175 mwifiex_dbg(priv->adapter, ERROR,
1176 "ADHOC_J_CMD: G Protection config failed\n");
1177 return -1;
1178 }
1179 }
1180
1181 priv->attempted_bss_desc = bss_desc;
1182
1183 cmd->command = cpu_to_le16(HostCmd_CMD_802_11_AD_HOC_JOIN);
1184
1185 adhoc_join->bss_descriptor.bss_mode = HostCmd_BSS_MODE_IBSS;
1186
1187 adhoc_join->bss_descriptor.beacon_period
1188 = cpu_to_le16(bss_desc->beacon_period);
1189
1190 memcpy(&adhoc_join->bss_descriptor.bssid,
1191 &bss_desc->mac_address, ETH_ALEN);
1192
1193 memcpy(&adhoc_join->bss_descriptor.ssid,
1194 &bss_desc->ssid.ssid, bss_desc->ssid.ssid_len);
1195
1196 memcpy(&adhoc_join->bss_descriptor.phy_param_set,
1197 &bss_desc->phy_param_set,
1198 sizeof(union ieee_types_phy_param_set));
1199
1200 memcpy(&adhoc_join->bss_descriptor.ss_param_set,
1201 &bss_desc->ss_param_set, sizeof(union ieee_types_ss_param_set));
1202
1203 tmp_cap = bss_desc->cap_info_bitmap;
1204
1205 tmp_cap &= CAPINFO_MASK;
1206
1207 mwifiex_dbg(priv->adapter, INFO,
1208 "info: ADHOC_J_CMD: tmp_cap=%4X CAPINFO_MASK=%4lX\n",
1209 tmp_cap, CAPINFO_MASK);
1210
1211 /* Information on BSSID descriptor passed to FW */
1212 mwifiex_dbg(priv->adapter, INFO,
1213 "info: ADHOC_J_CMD: BSSID=%pM, SSID='%s'\n",
1214 adhoc_join->bss_descriptor.bssid,
1215 adhoc_join->bss_descriptor.ssid);
1216
1217 for (i = 0; i < MWIFIEX_SUPPORTED_RATES &&
1218 bss_desc->supported_rates[i]; i++)
1219 ;
1220 rates_size = i;
1221
1222 /* Copy Data Rates from the Rates recorded in scan response */
1223 memset(adhoc_join->bss_descriptor.data_rates, 0,
1224 sizeof(adhoc_join->bss_descriptor.data_rates));
1225 memcpy(adhoc_join->bss_descriptor.data_rates,
1226 bss_desc->supported_rates, rates_size);
1227
1228 /* Copy the adhoc join rates into Current BSS state structure */
1229 priv->curr_bss_params.num_of_rates = rates_size;
1230 memcpy(&priv->curr_bss_params.data_rates, bss_desc->supported_rates,
1231 rates_size);
1232
1233 /* Copy the channel information */
1234 priv->curr_bss_params.bss_descriptor.channel = bss_desc->channel;
1235 priv->curr_bss_params.band = (u8) bss_desc->bss_band;
1236
1237 if (priv->sec_info.wep_enabled || priv->sec_info.wpa_enabled)
1238 tmp_cap |= WLAN_CAPABILITY_PRIVACY;
1239
1240 if (IS_SUPPORT_MULTI_BANDS(priv->adapter)) {
1241 /* Append a channel TLV */
1242 chan_tlv = (struct mwifiex_ie_types_chan_list_param_set *) pos;
1243 chan_tlv->header.type = cpu_to_le16(TLV_TYPE_CHANLIST);
1244 chan_tlv->header.len =
1245 cpu_to_le16(sizeof(struct mwifiex_chan_scan_param_set));
1246
1247 memset(chan_tlv->chan_scan_param, 0x00,
1248 sizeof(struct mwifiex_chan_scan_param_set));
1249 chan_tlv->chan_scan_param[0].chan_number =
1250 (bss_desc->phy_param_set.ds_param_set.current_chan);
1251 mwifiex_dbg(priv->adapter, INFO, "info: ADHOC_J_CMD: TLV Chan=%d\n",
1252 chan_tlv->chan_scan_param[0].chan_number);
1253
1254 chan_tlv->chan_scan_param[0].radio_type =
1255 mwifiex_band_to_radio_type((u8) bss_desc->bss_band);
1256
1257 mwifiex_dbg(priv->adapter, INFO, "info: ADHOC_J_CMD: TLV Band=%d\n",
1258 chan_tlv->chan_scan_param[0].radio_type);
1259 pos += sizeof(chan_tlv->header) +
1260 sizeof(struct mwifiex_chan_scan_param_set);
1261 cmd_append_size += sizeof(chan_tlv->header) +
1262 sizeof(struct mwifiex_chan_scan_param_set);
1263 }
1264
1265 if (priv->sec_info.wpa_enabled)
1266 rsn_ie_len = mwifiex_append_rsn_ie_wpa_wpa2(priv, &pos);
1267 if (rsn_ie_len == -1)
1268 return -1;
1269 cmd_append_size += rsn_ie_len;
1270
1271 if (ISSUPP_11NENABLED(priv->adapter->fw_cap_info))
1272 cmd_append_size += mwifiex_cmd_append_11n_tlv(priv,
1273 bss_desc, &pos);
1274
1275 /* Append vendor specific IE TLV */
1276 cmd_append_size += mwifiex_cmd_append_vsie_tlv(priv,
1277 MWIFIEX_VSIE_MASK_ADHOC, &pos);
1278
1279 cmd->size = cpu_to_le16
1280 ((u16) (sizeof(struct host_cmd_ds_802_11_ad_hoc_join)
1281 + S_DS_GEN + cmd_append_size));
1282
1283 adhoc_join->bss_descriptor.cap_info_bitmap = cpu_to_le16(tmp_cap);
1284
1285 return 0;
1286}
1287
1288/*
1289 * This function handles the command response of ad-hoc start and
1290 * ad-hoc join.
1291 *
1292 * The function generates a device-connected event to notify
1293 * the applications, in case of successful ad-hoc start/join, and
1294 * saves the beacon buffer.
1295 */
1296int mwifiex_ret_802_11_ad_hoc(struct mwifiex_private *priv,
1297 struct host_cmd_ds_command *resp)
1298{
1299 int ret = 0;
1300 struct mwifiex_adapter *adapter = priv->adapter;
1301 struct host_cmd_ds_802_11_ad_hoc_start_result *start_result =
1302 &resp->params.start_result;
1303 struct host_cmd_ds_802_11_ad_hoc_join_result *join_result =
1304 &resp->params.join_result;
1305 struct mwifiex_bssdescriptor *bss_desc;
1306 u16 cmd = le16_to_cpu(resp->command);
1307 u8 result;
1308
1309 if (!priv->attempted_bss_desc) {
1310 mwifiex_dbg(priv->adapter, ERROR,
1311 "ADHOC_RESP: failed, association terminated by host\n");
1312 goto done;
1313 }
1314
1315 if (cmd == HostCmd_CMD_802_11_AD_HOC_START)
1316 result = start_result->result;
1317 else
1318 result = join_result->result;
1319
1320 bss_desc = priv->attempted_bss_desc;
1321
1322 /* Join result code 0 --> SUCCESS */
1323 if (result) {
1324 mwifiex_dbg(priv->adapter, ERROR, "ADHOC_RESP: failed\n");
1325 if (priv->media_connected)
1326 mwifiex_reset_connect_state(priv, result, true);
1327
1328 memset(&priv->curr_bss_params.bss_descriptor,
1329 0x00, sizeof(struct mwifiex_bssdescriptor));
1330
1331 ret = -1;
1332 goto done;
1333 }
1334
1335 /* Send a Media Connected event, according to the Spec */
1336 priv->media_connected = true;
1337
1338 if (le16_to_cpu(resp->command) == HostCmd_CMD_802_11_AD_HOC_START) {
1339 mwifiex_dbg(priv->adapter, INFO, "info: ADHOC_S_RESP %s\n",
1340 bss_desc->ssid.ssid);
1341
1342 /* Update the created network descriptor with the new BSSID */
1343 memcpy(bss_desc->mac_address,
1344 start_result->bssid, ETH_ALEN);
1345
1346 priv->adhoc_state = ADHOC_STARTED;
1347 } else {
1348 /*
1349 * Now the join cmd should be successful.
1350 * If BSSID has changed use SSID to compare instead of BSSID
1351 */
1352 mwifiex_dbg(priv->adapter, INFO,
1353 "info: ADHOC_J_RESP %s\n",
1354 bss_desc->ssid.ssid);
1355
1356 /*
1357 * Make a copy of current BSSID descriptor, only needed for
1358 * join since the current descriptor is already being used
1359 * for adhoc start
1360 */
1361 memcpy(&priv->curr_bss_params.bss_descriptor,
1362 bss_desc, sizeof(struct mwifiex_bssdescriptor));
1363
1364 priv->adhoc_state = ADHOC_JOINED;
1365 }
1366
1367 mwifiex_dbg(priv->adapter, INFO, "info: ADHOC_RESP: channel = %d\n",
1368 priv->adhoc_channel);
1369 mwifiex_dbg(priv->adapter, INFO, "info: ADHOC_RESP: BSSID = %pM\n",
1370 priv->curr_bss_params.bss_descriptor.mac_address);
1371
1372 if (!netif_carrier_ok(priv->netdev))
1373 netif_carrier_on(priv->netdev);
1374 mwifiex_wake_up_net_dev_queue(priv->netdev, adapter);
1375
1376 mwifiex_save_curr_bcn(priv);
1377
1378done:
1379 /* Need to indicate IOCTL complete */
1380 if (adapter->curr_cmd->wait_q_enabled) {
1381 if (ret)
1382 adapter->cmd_wait_q.status = -1;
1383 else
1384 adapter->cmd_wait_q.status = 0;
1385
1386 }
1387
1388 return ret;
1389}
1390
1391/*
1392 * This function associates to a specific BSS discovered in a scan.
1393 *
1394 * It clears any past association response stored for application
1395 * retrieval and calls the command preparation routine to send the
1396 * command to firmware.
1397 */
1398int mwifiex_associate(struct mwifiex_private *priv,
1399 struct mwifiex_bssdescriptor *bss_desc)
1400{
1401 /* Return error if the adapter is not STA role or table entry
1402 * is not marked as infra.
1403 */
1404 if ((GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) ||
1405 (bss_desc->bss_mode != NL80211_IFTYPE_STATION))
1406 return -1;
1407
1408 if (ISSUPP_11ACENABLED(priv->adapter->fw_cap_info) &&
1409 !bss_desc->disable_11n && !bss_desc->disable_11ac &&
1410 priv->adapter->config_bands & BAND_AAC)
1411 mwifiex_set_11ac_ba_params(priv);
1412 else
1413 mwifiex_set_ba_params(priv);
1414
1415 /* Clear any past association response stored for application
1416 retrieval */
1417 priv->assoc_rsp_size = 0;
1418
1419 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_ASSOCIATE,
1420 HostCmd_ACT_GEN_SET, 0, bss_desc, true);
1421}
1422
1423/*
1424 * This function starts an ad-hoc network.
1425 *
1426 * It calls the command preparation routine to send the command to firmware.
1427 */
1428int
1429mwifiex_adhoc_start(struct mwifiex_private *priv,
1430 struct cfg80211_ssid *adhoc_ssid)
1431{
1432 mwifiex_dbg(priv->adapter, INFO, "info: Adhoc Channel = %d\n",
1433 priv->adhoc_channel);
1434 mwifiex_dbg(priv->adapter, INFO, "info: curr_bss_params.channel = %d\n",
1435 priv->curr_bss_params.bss_descriptor.channel);
1436 mwifiex_dbg(priv->adapter, INFO, "info: curr_bss_params.band = %d\n",
1437 priv->curr_bss_params.band);
1438
1439 if (ISSUPP_11ACENABLED(priv->adapter->fw_cap_info) &&
1440 priv->adapter->config_bands & BAND_AAC)
1441 mwifiex_set_11ac_ba_params(priv);
1442 else
1443 mwifiex_set_ba_params(priv);
1444
1445 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_AD_HOC_START,
1446 HostCmd_ACT_GEN_SET, 0, adhoc_ssid, true);
1447}
1448
1449/*
1450 * This function joins an ad-hoc network found in a previous scan.
1451 *
1452 * It calls the command preparation routine to send the command to firmware,
1453 * if already not connected to the requested SSID.
1454 */
1455int mwifiex_adhoc_join(struct mwifiex_private *priv,
1456 struct mwifiex_bssdescriptor *bss_desc)
1457{
1458 mwifiex_dbg(priv->adapter, INFO,
1459 "info: adhoc join: curr_bss ssid =%s\n",
1460 priv->curr_bss_params.bss_descriptor.ssid.ssid);
1461 mwifiex_dbg(priv->adapter, INFO,
1462 "info: adhoc join: curr_bss ssid_len =%u\n",
1463 priv->curr_bss_params.bss_descriptor.ssid.ssid_len);
1464 mwifiex_dbg(priv->adapter, INFO, "info: adhoc join: ssid =%s\n",
1465 bss_desc->ssid.ssid);
1466 mwifiex_dbg(priv->adapter, INFO, "info: adhoc join: ssid_len =%u\n",
1467 bss_desc->ssid.ssid_len);
1468
1469 /* Check if the requested SSID is already joined */
1470 if (priv->curr_bss_params.bss_descriptor.ssid.ssid_len &&
1471 cfg80211_ssid_eq(&bss_desc->ssid,
1472 &priv->curr_bss_params.bss_descriptor.ssid) &&
1473 (priv->curr_bss_params.bss_descriptor.bss_mode ==
1474 NL80211_IFTYPE_ADHOC)) {
1475 mwifiex_dbg(priv->adapter, INFO,
1476 "info: ADHOC_J_CMD: new ad-hoc SSID\t"
1477 "is the same as current; not attempting to re-join\n");
1478 return -1;
1479 }
1480
1481 if (ISSUPP_11ACENABLED(priv->adapter->fw_cap_info) &&
1482 !bss_desc->disable_11n && !bss_desc->disable_11ac &&
1483 priv->adapter->config_bands & BAND_AAC)
1484 mwifiex_set_11ac_ba_params(priv);
1485 else
1486 mwifiex_set_ba_params(priv);
1487
1488 mwifiex_dbg(priv->adapter, INFO,
1489 "info: curr_bss_params.channel = %d\n",
1490 priv->curr_bss_params.bss_descriptor.channel);
1491 mwifiex_dbg(priv->adapter, INFO,
1492 "info: curr_bss_params.band = %c\n",
1493 priv->curr_bss_params.band);
1494
1495 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_AD_HOC_JOIN,
1496 HostCmd_ACT_GEN_SET, 0, bss_desc, true);
1497}
1498
1499/*
1500 * This function deauthenticates/disconnects from infra network by sending
1501 * deauthentication request.
1502 */
1503static int mwifiex_deauthenticate_infra(struct mwifiex_private *priv, u8 *mac)
1504{
1505 u8 mac_address[ETH_ALEN];
1506 int ret;
1507
1508 if (!mac || is_zero_ether_addr(mac))
1509 memcpy(mac_address,
1510 priv->curr_bss_params.bss_descriptor.mac_address,
1511 ETH_ALEN);
1512 else
1513 memcpy(mac_address, mac, ETH_ALEN);
1514
1515 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_DEAUTHENTICATE,
1516 HostCmd_ACT_GEN_SET, 0, mac_address, true);
1517
1518 return ret;
1519}
1520
1521/*
1522 * This function deauthenticates/disconnects from a BSS.
1523 *
1524 * In case of infra made, it sends deauthentication request, and
1525 * in case of ad-hoc mode, a stop network request is sent to the firmware.
1526 * In AP mode, a command to stop bss is sent to firmware.
1527 */
1528int mwifiex_deauthenticate(struct mwifiex_private *priv, u8 *mac)
1529{
1530 int ret = 0;
1531
1532 if (!priv->media_connected)
1533 return 0;
1534
1535 if (priv->adapter->host_mlme_enabled) {
1536 priv->auth_flag = 0;
1537 priv->auth_alg = WLAN_AUTH_NONE;
1538 priv->host_mlme_reg = false;
1539 priv->mgmt_frame_mask = 0;
1540 if (mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
1541 HostCmd_ACT_GEN_SET, 0,
1542 &priv->mgmt_frame_mask, false)) {
1543 mwifiex_dbg(priv->adapter, ERROR,
1544 "could not unregister mgmt frame rx\n");
1545 return -1;
1546 }
1547 }
1548
1549 switch (priv->bss_mode) {
1550 case NL80211_IFTYPE_STATION:
1551 case NL80211_IFTYPE_P2P_CLIENT:
1552 ret = mwifiex_deauthenticate_infra(priv, mac);
1553 if (ret)
1554 cfg80211_disconnected(priv->netdev, 0, NULL, 0,
1555 true, GFP_KERNEL);
1556 break;
1557 case NL80211_IFTYPE_ADHOC:
1558 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_AD_HOC_STOP,
1559 HostCmd_ACT_GEN_SET, 0, NULL, true);
1560 case NL80211_IFTYPE_AP:
1561 return mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1562 HostCmd_ACT_GEN_SET, 0, NULL, true);
1563 default:
1564 break;
1565 }
1566
1567 return ret;
1568}
1569
1570/* This function deauthenticates/disconnects from all BSS. */
1571void mwifiex_deauthenticate_all(struct mwifiex_adapter *adapter)
1572{
1573 struct mwifiex_private *priv;
1574 int i;
1575
1576 for (i = 0; i < adapter->priv_num; i++) {
1577 priv = adapter->priv[i];
1578 mwifiex_deauthenticate(priv, NULL);
1579 }
1580}
1581EXPORT_SYMBOL_GPL(mwifiex_deauthenticate_all);
1582
1583/*
1584 * This function converts band to radio type used in channel TLV.
1585 */
1586u8
1587mwifiex_band_to_radio_type(u8 band)
1588{
1589 switch (band) {
1590 case BAND_A:
1591 case BAND_AN:
1592 case BAND_A | BAND_AN:
1593 case BAND_A | BAND_AN | BAND_AAC:
1594 return HostCmd_SCAN_RADIO_TYPE_A;
1595 case BAND_B:
1596 case BAND_G:
1597 case BAND_B | BAND_G:
1598 default:
1599 return HostCmd_SCAN_RADIO_TYPE_BG;
1600 }
1601}